projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
scsi: lpfc: Set driver environment data on adapter
[linux-2.6-block.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. *
50611577 4 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <linux/dma-mapping.h>
25#include <linux/idr.h>
26#include <linux/interrupt.h>
acf3368f 27#include <linux/module.h>
dea3101e 28#include <linux/kthread.h>
29#include <linux/pci.h>
30#include <linux/spinlock.h>
92d7f7b0 31#include <linux/ctype.h>
0d878419 32#include <linux/aer.h>
5a0e3ad6 33#include <linux/slab.h>
52d52440 34#include <linux/firmware.h>
3ef6d24c 35#include <linux/miscdevice.h>
7bb03bbf 36#include <linux/percpu.h>
dea3101e 37
91886523 38#include <scsi/scsi.h>
dea3101e 39#include <scsi/scsi_device.h>
40#include <scsi/scsi_host.h>
41#include <scsi/scsi_transport_fc.h>
42
da0436e9 43#include "lpfc_hw4.h"
dea3101e 44#include "lpfc_hw.h"
45#include "lpfc_sli.h"
da0436e9 46#include "lpfc_sli4.h"
ea2151b4 47#include "lpfc_nl.h"
dea3101e 48#include "lpfc_disc.h"
49#include "lpfc_scsi.h"
50#include "lpfc.h"
51#include "lpfc_logmsg.h"
52#include "lpfc_crtn.h"
92d7f7b0 53#include "lpfc_vport.h"
dea3101e 54#include "lpfc_version.h"
12f44457 55#include "lpfc_ids.h"
dea3101e 56
81301a9b
JS		 57char *_dump_buf_data;
58unsigned long _dump_buf_data_order;
59char *_dump_buf_dif;
60unsigned long _dump_buf_dif_order;
61spinlock_t _dump_buf_lock;
62
7bb03bbf 63/* Used when mapping IRQ vectors in a driver centric manner */
b246de17
JS		 64uint16_t *lpfc_used_cpu;
65uint32_t lpfc_present_cpu;
7bb03bbf 66
dea3101e 67static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
68static int lpfc_post_rcv_buf(struct lpfc_hba *);
5350d872 69static int lpfc_sli4_queue_verify(struct lpfc_hba *);
da0436e9
JS		 70static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
71static int lpfc_setup_endian_order(struct lpfc_hba *);
da0436e9 72static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
8a9d2e80
JS		 73static void lpfc_free_els_sgl_list(struct lpfc_hba *);
74static void lpfc_init_sgl_list(struct lpfc_hba *);
da0436e9
JS		 75static int lpfc_init_active_sgl_array(struct lpfc_hba *);
76static void lpfc_free_active_sgl(struct lpfc_hba *);
77static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
78static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
79static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
80static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
81static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
618a5230
JS		 82static void lpfc_sli4_disable_intr(struct lpfc_hba *);
83static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
1ba981fd 84static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
dea3101e 85
86static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 87static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 88static DEFINE_IDR(lpfc_hba_index);
89
e59058c4 90/**
3621a710 91 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 92 * @phba: pointer to lpfc hba data structure.
93 *
94 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
95 * mailbox command. It retrieves the revision information from the HBA and
96 * collects the Vital Product Data (VPD) about the HBA for preparing the
97 * configuration of the HBA.
98 *
99 * Return codes:
100 * 0 - success.
101 * -ERESTART - requests the SLI layer to reset the HBA and try again.
102 * Any other value - indicates an error.
103 **/
dea3101e 104int
2e0fef85 105lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 106{
107 lpfc_vpd_t *vp = &phba->vpd;
108 int i = 0, rc;
109 LPFC_MBOXQ_t *pmb;
110 MAILBOX_t *mb;
111 char *lpfc_vpd_data = NULL;
112 uint16_t offset = 0;
113 static char licensed[56] =
114 "key unlock for use with gnu public licensed code only\0";
65a29c16 115 static int init_key = 1;
dea3101e 116
117 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
118 if (!pmb) {
2e0fef85 119 phba->link_state = LPFC_HBA_ERROR;
dea3101e 120 return -ENOMEM;
121 }
122
04c68496 123 mb = &pmb->u.mb;
2e0fef85 124 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 125
126 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 127 if (init_key) {
128 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 129
65a29c16
JS		 130 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
131 *ptext = cpu_to_be32(*ptext);
132 init_key = 0;
133 }
dea3101e 134
135 lpfc_read_nv(phba, pmb);
136 memset((char*)mb->un.varRDnvp.rsvd3, 0,
137 sizeof (mb->un.varRDnvp.rsvd3));
138 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
139 sizeof (licensed));
140
141 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
142
143 if (rc != MBX_SUCCESS) {
ed957684 144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 145 "0324 Config Port initialization "
dea3101e 146 "error, mbxCmd x%x READ_NVPARM, "
147 "mbxStatus x%x\n",
dea3101e 148 mb->mbxCommand, mb->mbxStatus);
149 mempool_free(pmb, phba->mbox_mem_pool);
150 return -ERESTART;
151 }
152 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 153 sizeof(phba->wwnn));
154 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
155 sizeof(phba->wwpn));
dea3101e 156 }
157
92d7f7b0
JS		 158 phba->sli3_options = 0x0;
159
dea3101e 160 /* Setup and issue mailbox READ REV command */
161 lpfc_read_rev(phba, pmb);
162 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
163 if (rc != MBX_SUCCESS) {
ed957684 164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 165 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 166 "READ_REV, mbxStatus x%x\n",
dea3101e 167 mb->mbxCommand, mb->mbxStatus);
168 mempool_free( pmb, phba->mbox_mem_pool);
169 return -ERESTART;
170 }
171
92d7f7b0 172
1de933f3
JSEC		 173 /*
174 * The value of rr must be 1 since the driver set the cv field to 1.
175 * This setting requires the FW to set all revision fields.
dea3101e 176 */
1de933f3 177 if (mb->un.varRdRev.rr == 0) {
dea3101e 178 vp->rev.rBit = 0;
1de933f3 179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 180 "0440 Adapter failed to init, READ_REV has "
181 "missing revision information.\n");
dea3101e 182 mempool_free(pmb, phba->mbox_mem_pool);
183 return -ERESTART;
dea3101e 184 }
185
495a714c
JS		 186 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
187 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 188 return -EINVAL;
495a714c 189 }
ed957684 190
dea3101e 191 /* Save information as VPD data */
1de933f3 192 vp->rev.rBit = 1;
92d7f7b0 193 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 194 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
195 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
196 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
197 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 198 vp->rev.biuRev = mb->un.varRdRev.biuRev;
199 vp->rev.smRev = mb->un.varRdRev.smRev;
200 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
201 vp->rev.endecRev = mb->un.varRdRev.endecRev;
202 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
203 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
204 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
205 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
206 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
207 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
208
92d7f7b0
JS		 209 /* If the sli feature level is less then 9, we must
210 * tear down all RPIs and VPIs on link down if NPIV
211 * is enabled.
212 */
213 if (vp->rev.feaLevelHigh < 9)
214 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
215
dea3101e 216 if (lpfc_is_LC_HBA(phba->pcidev->device))
217 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
218 sizeof (phba->RandomData));
219
dea3101e 220 /* Get adapter VPD information */
dea3101e 221 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
222 if (!lpfc_vpd_data)
d7c255b2 223 goto out_free_mbox;
dea3101e 224 do {
a0c87cbd 225 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 226 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
227
228 if (rc != MBX_SUCCESS) {
229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 230 "0441 VPD not present on adapter, "
dea3101e 231 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 232 mb->mbxCommand, mb->mbxStatus);
74b72a59 233 mb->un.varDmp.word_cnt = 0;
dea3101e 234 }
04c68496
JS		 235 /* dump mem may return a zero when finished or we got a
236 * mailbox error, either way we are done.
237 */
238 if (mb->un.varDmp.word_cnt == 0)
239 break;
74b72a59
JW		 240 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
241 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 242 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
243 lpfc_vpd_data + offset,
92d7f7b0 244 mb->un.varDmp.word_cnt);
dea3101e 245 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 246 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
247 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 248
249 kfree(lpfc_vpd_data);
dea3101e 250out_free_mbox:
251 mempool_free(pmb, phba->mbox_mem_pool);
252 return 0;
253}
254
e59058c4 255/**
3621a710 256 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 257 * @phba: pointer to lpfc hba data structure.
258 * @pmboxq: pointer to the driver internal queue element for mailbox command.
259 *
260 * This is the completion handler for driver's configuring asynchronous event
261 * mailbox command to the device. If the mailbox command returns successfully,
262 * it will set internal async event support flag to 1; otherwise, it will
263 * set internal async event support flag to 0.
264 **/
57127f15
JS		 265static void
266lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
267{
04c68496 268 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 269 phba->temp_sensor_support = 1;
270 else
271 phba->temp_sensor_support = 0;
272 mempool_free(pmboxq, phba->mbox_mem_pool);
273 return;
274}
275
97207482 276/**
3621a710 277 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 278 * @phba: pointer to lpfc hba data structure.
279 * @pmboxq: pointer to the driver internal queue element for mailbox command.
280 *
281 * This is the completion handler for dump mailbox command for getting
282 * wake up parameters. When this command complete, the response contain
283 * Option rom version of the HBA. This function translate the version number
284 * into a human readable string and store it in OptionROMVersion.
285 **/
286static void
287lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
288{
289 struct prog_id *prg;
290 uint32_t prog_id_word;
291 char dist = ' ';
292 /* character array used for decoding dist type. */
293 char dist_char[] = "nabx";
294
04c68496 295 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 296 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 297 return;
9f1e1b50 298 }
97207482
JS		 299
300 prg = (struct prog_id *) &prog_id_word;
301
302 /* word 7 contain option rom version */
04c68496 303 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 304
305 /* Decode the Option rom version word to a readable string */
306 if (prg->dist < 4)
307 dist = dist_char[prg->dist];
308
309 if ((prg->dist == 3) && (prg->num == 0))
a2fc4aef 310 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
97207482
JS		 311 prg->ver, prg->rev, prg->lev);
312 else
a2fc4aef 313 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
97207482
JS		 314 prg->ver, prg->rev, prg->lev,
315 dist, prg->num);
9f1e1b50 316 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 317 return;
318}
319
0558056c
JS		 320/**
321 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
322 * cfg_soft_wwnn, cfg_soft_wwpn
323 * @vport: pointer to lpfc vport data structure.
324 *
325 *
326 * Return codes
327 * None.
328 **/
329void
330lpfc_update_vport_wwn(struct lpfc_vport *vport)
331{
332 /* If the soft name exists then update it using the service params */
333 if (vport->phba->cfg_soft_wwnn)
334 u64_to_wwn(vport->phba->cfg_soft_wwnn,
335 vport->fc_sparam.nodeName.u.wwn);
336 if (vport->phba->cfg_soft_wwpn)
337 u64_to_wwn(vport->phba->cfg_soft_wwpn,
338 vport->fc_sparam.portName.u.wwn);
339
340 /*
341 * If the name is empty or there exists a soft name
342 * then copy the service params name, otherwise use the fc name
343 */
344 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
345 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
346 sizeof(struct lpfc_name));
347 else
348 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
349 sizeof(struct lpfc_name));
350
351 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
352 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
353 sizeof(struct lpfc_name));
354 else
355 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
356 sizeof(struct lpfc_name));
357}
358
e59058c4 359/**
3621a710 360 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 361 * @phba: pointer to lpfc hba data structure.
362 *
363 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
364 * command call. It performs all internal resource and state setups on the
365 * port: post IOCB buffers, enable appropriate host interrupt attentions,
366 * ELS ring timers, etc.
367 *
368 * Return codes
369 * 0 - success.
370 * Any other value - error.
371 **/
dea3101e 372int
2e0fef85 373lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 374{
2e0fef85 375 struct lpfc_vport *vport = phba->pport;
a257bf90 376 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 377 LPFC_MBOXQ_t *pmb;
378 MAILBOX_t *mb;
379 struct lpfc_dmabuf *mp;
380 struct lpfc_sli *psli = &phba->sli;
381 uint32_t status, timeout;
2e0fef85
JS		 382 int i, j;
383 int rc;
dea3101e 384
7af67051
JS		 385 spin_lock_irq(&phba->hbalock);
386 /*
387 * If the Config port completed correctly the HBA is not
388 * over heated any more.
389 */
390 if (phba->over_temp_state == HBA_OVER_TEMP)
391 phba->over_temp_state = HBA_NORMAL_TEMP;
392 spin_unlock_irq(&phba->hbalock);
393
dea3101e 394 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
395 if (!pmb) {
2e0fef85 396 phba->link_state = LPFC_HBA_ERROR;
dea3101e 397 return -ENOMEM;
398 }
04c68496 399 mb = &pmb->u.mb;
dea3101e 400
dea3101e 401 /* Get login parameters for NID. */
9f1177a3
JS		 402 rc = lpfc_read_sparam(phba, pmb, 0);
403 if (rc) {
404 mempool_free(pmb, phba->mbox_mem_pool);
405 return -ENOMEM;
406 }
407
ed957684 408 pmb->vport = vport;
dea3101e 409 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 411 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 412 "READ_SPARM mbxStatus x%x\n",
dea3101e 413 mb->mbxCommand, mb->mbxStatus);
2e0fef85 414 phba->link_state = LPFC_HBA_ERROR;
dea3101e 415 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 416 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 417 lpfc_mbuf_free(phba, mp->virt, mp->phys);
418 kfree(mp);
419 return -EIO;
420 }
421
422 mp = (struct lpfc_dmabuf *) pmb->context1;
423
2e0fef85 424 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 425 lpfc_mbuf_free(phba, mp->virt, mp->phys);
426 kfree(mp);
427 pmb->context1 = NULL;
0558056c 428 lpfc_update_vport_wwn(vport);
a257bf90
JS		 429
430 /* Update the fc_host data structures with new wwn. */
431 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
432 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 433 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 434
dea3101e 435 /* If no serial number in VPD data, use low 6 bytes of WWNN */
436 /* This should be consolidated into parse_vpd ? - mr */
437 if (phba->SerialNumber[0] == 0) {
438 uint8_t *outptr;
439
2e0fef85 440 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 441 for (i = 0; i < 12; i++) {
442 status = *outptr++;
443 j = ((status & 0xf0) >> 4);
444 if (j <= 9)
445 phba->SerialNumber[i] =
446 (char)((uint8_t) 0x30 + (uint8_t) j);
447 else
448 phba->SerialNumber[i] =
449 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
450 i++;
451 j = (status & 0xf);
452 if (j <= 9)
453 phba->SerialNumber[i] =
454 (char)((uint8_t) 0x30 + (uint8_t) j);
455 else
456 phba->SerialNumber[i] =
457 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
458 }
459 }
460
dea3101e 461 lpfc_read_config(phba, pmb);
ed957684 462 pmb->vport = vport;
dea3101e 463 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 464 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 465 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 466 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 467 mb->mbxCommand, mb->mbxStatus);
2e0fef85 468 phba->link_state = LPFC_HBA_ERROR;
dea3101e 469 mempool_free( pmb, phba->mbox_mem_pool);
470 return -EIO;
471 }
472
a0c87cbd
JS		 473 /* Check if the port is disabled */
474 lpfc_sli_read_link_ste(phba);
475
dea3101e 476 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
572709e2
JS		 477 i = (mb->un.varRdConfig.max_xri + 1);
478 if (phba->cfg_hba_queue_depth > i) {
479 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
480 "3359 HBA queue depth changed from %d to %d\n",
481 phba->cfg_hba_queue_depth, i);
482 phba->cfg_hba_queue_depth = i;
483 }
484
485 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
486 i = (mb->un.varRdConfig.max_xri >> 3);
487 if (phba->pport->cfg_lun_queue_depth > i) {
488 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
489 "3360 LUN queue depth changed from %d to %d\n",
490 phba->pport->cfg_lun_queue_depth, i);
491 phba->pport->cfg_lun_queue_depth = i;
492 }
dea3101e 493
494 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 495
496 /* Get the default values for Model Name and Description */
497 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
498
2e0fef85 499 phba->link_state = LPFC_LINK_DOWN;
dea3101e 500
0b727fea 501 /* Only process IOCBs on ELS ring till hba_state is READY */
7e56aa25 502 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
a4bc3379 503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 504 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
dea3101e 505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 506 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
dea3101e 507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
508
509 /* Post receive buffers for desired rings */
ed957684
JS		 510 if (phba->sli_rev != 3)
511 lpfc_post_rcv_buf(phba);
dea3101e 512
9399627f
JS		 513 /*
514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
515 */
516 if (phba->intr_type == MSIX) {
517 rc = lpfc_config_msi(phba, pmb);
518 if (rc) {
519 mempool_free(pmb, phba->mbox_mem_pool);
520 return -EIO;
521 }
522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
523 if (rc != MBX_SUCCESS) {
524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
525 "0352 Config MSI mailbox command "
526 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 527 pmb->u.mb.mbxCommand,
528 pmb->u.mb.mbxStatus);
9399627f
JS		 529 mempool_free(pmb, phba->mbox_mem_pool);
530 return -EIO;
531 }
532 }
533
04c68496 534 spin_lock_irq(&phba->hbalock);
9399627f
JS		 535 /* Initialize ERATT handling flag */
536 phba->hba_flag &= ~HBA_ERATT_HANDLED;
537
dea3101e 538 /* Enable appropriate host interrupts */
9940b97b
JS		 539 if (lpfc_readl(phba->HCregaddr, &status)) {
540 spin_unlock_irq(&phba->hbalock);
541 return -EIO;
542 }
dea3101e 543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
544 if (psli->num_rings > 0)
545 status |= HC_R0INT_ENA;
546 if (psli->num_rings > 1)
547 status |= HC_R1INT_ENA;
548 if (psli->num_rings > 2)
549 status |= HC_R2INT_ENA;
550 if (psli->num_rings > 3)
551 status |= HC_R3INT_ENA;
552
875fbdfe
JSEC		 553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
554 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 555 status &= ~(HC_R0INT_ENA);
875fbdfe 556
dea3101e 557 writel(status, phba->HCregaddr);
558 readl(phba->HCregaddr); /* flush */
2e0fef85 559 spin_unlock_irq(&phba->hbalock);
dea3101e 560
9399627f
JS		 561 /* Set up ring-0 (ELS) timer */
562 timeout = phba->fc_ratov * 2;
256ec0d0
JS		 563 mod_timer(&vport->els_tmofunc,
564 jiffies + msecs_to_jiffies(1000 * timeout));
9399627f 565 /* Set up heart beat (HB) timer */
256ec0d0
JS		 566 mod_timer(&phba->hb_tmofunc,
567 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 568 phba->hb_outstanding = 0;
569 phba->last_completion_time = jiffies;
9399627f 570 /* Set up error attention (ERATT) polling timer */
256ec0d0 571 mod_timer(&phba->eratt_poll,
65791f1f 572 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
dea3101e 573
a0c87cbd
JS		 574 if (phba->hba_flag & LINK_DISABLED) {
575 lpfc_printf_log(phba,
576 KERN_ERR, LOG_INIT,
577 "2598 Adapter Link is disabled.\n");
578 lpfc_down_link(phba, pmb);
579 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
580 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
581 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
582 lpfc_printf_log(phba,
583 KERN_ERR, LOG_INIT,
584 "2599 Adapter failed to issue DOWN_LINK"
585 " mbox command rc 0x%x\n", rc);
586
587 mempool_free(pmb, phba->mbox_mem_pool);
588 return -EIO;
589 }
e40a02c1 590 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
026abb87
JS		 591 mempool_free(pmb, phba->mbox_mem_pool);
592 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
593 if (rc)
594 return rc;
dea3101e 595 }
596 /* MBOX buffer will be freed in mbox compl */
57127f15 597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 598 if (!pmb) {
599 phba->link_state = LPFC_HBA_ERROR;
600 return -ENOMEM;
601 }
602
57127f15
JS		 603 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
604 pmb->mbox_cmpl = lpfc_config_async_cmpl;
605 pmb->vport = phba->pport;
606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 607
57127f15
JS		 608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
609 lpfc_printf_log(phba,
610 KERN_ERR,
611 LOG_INIT,
612 "0456 Adapter failed to issue "
e4e74273 613 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 614 rc);
615 mempool_free(pmb, phba->mbox_mem_pool);
616 }
97207482
JS		 617
618 /* Get Option rom version */
619 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 620 if (!pmb) {
621 phba->link_state = LPFC_HBA_ERROR;
622 return -ENOMEM;
623 }
624
97207482
JS		 625 lpfc_dump_wakeup_param(phba, pmb);
626 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
627 pmb->vport = phba->pport;
628 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
629
630 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 632 "to get Option ROM version status x%x\n", rc);
97207482
JS		 633 mempool_free(pmb, phba->mbox_mem_pool);
634 }
635
d7c255b2 636 return 0;
ce8b3ce5
JS		 637}
638
84d1b006
JS		 639/**
640 * lpfc_hba_init_link - Initialize the FC link
641 * @phba: pointer to lpfc hba data structure.
6e7288d9 642 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 643 *
644 * This routine will issue the INIT_LINK mailbox command call.
645 * It is available to other drivers through the lpfc_hba data
646 * structure for use as a delayed link up mechanism with the
647 * module parameter lpfc_suppress_link_up.
648 *
649 * Return code
650 * 0 - success
651 * Any other value - error
652 **/
e399b228 653static int
6e7288d9 654lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
1b51197d
JS		 655{
656 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
657}
658
659/**
660 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
661 * @phba: pointer to lpfc hba data structure.
662 * @fc_topology: desired fc topology.
663 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
664 *
665 * This routine will issue the INIT_LINK mailbox command call.
666 * It is available to other drivers through the lpfc_hba data
667 * structure for use as a delayed link up mechanism with the
668 * module parameter lpfc_suppress_link_up.
669 *
670 * Return code
671 * 0 - success
672 * Any other value - error
673 **/
674int
675lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
676 uint32_t flag)
84d1b006
JS		 677{
678 struct lpfc_vport *vport = phba->pport;
679 LPFC_MBOXQ_t *pmb;
680 MAILBOX_t *mb;
681 int rc;
682
683 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
684 if (!pmb) {
685 phba->link_state = LPFC_HBA_ERROR;
686 return -ENOMEM;
687 }
688 mb = &pmb->u.mb;
689 pmb->vport = vport;
690
026abb87
JS		 691 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
692 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
693 !(phba->lmt & LMT_1Gb)) ||
694 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
695 !(phba->lmt & LMT_2Gb)) ||
696 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
697 !(phba->lmt & LMT_4Gb)) ||
698 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
699 !(phba->lmt & LMT_8Gb)) ||
700 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
701 !(phba->lmt & LMT_10Gb)) ||
702 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
d38dd52c
JS		 703 !(phba->lmt & LMT_16Gb)) ||
704 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
705 !(phba->lmt & LMT_32Gb))) {
026abb87
JS		 706 /* Reset link speed to auto */
707 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
708 "1302 Invalid speed for this board:%d "
709 "Reset link speed to auto.\n",
710 phba->cfg_link_speed);
711 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
712 }
1b51197d 713 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
84d1b006 714 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1b51197d
JS		 715 if (phba->sli_rev < LPFC_SLI_REV4)
716 lpfc_set_loopback_flag(phba);
6e7288d9 717 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 718 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
720 "0498 Adapter failed to init, mbxCmd x%x "
721 "INIT_LINK, mbxStatus x%x\n",
722 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 723 if (phba->sli_rev <= LPFC_SLI_REV3) {
724 /* Clear all interrupt enable conditions */
725 writel(0, phba->HCregaddr);
726 readl(phba->HCregaddr); /* flush */
727 /* Clear all pending interrupts */
728 writel(0xffffffff, phba->HAregaddr);
729 readl(phba->HAregaddr); /* flush */
730 }
84d1b006 731 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 732 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 733 mempool_free(pmb, phba->mbox_mem_pool);
734 return -EIO;
735 }
e40a02c1 736 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 737 if (flag == MBX_POLL)
738 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 739
740 return 0;
741}
742
743/**
744 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 745 * @phba: pointer to lpfc hba data structure.
746 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 747 *
748 * This routine will issue the DOWN_LINK mailbox command call.
749 * It is available to other drivers through the lpfc_hba data
750 * structure for use to stop the link.
751 *
752 * Return code
753 * 0 - success
754 * Any other value - error
755 **/
e399b228 756static int
6e7288d9 757lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 758{
759 LPFC_MBOXQ_t *pmb;
760 int rc;
761
762 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
763 if (!pmb) {
764 phba->link_state = LPFC_HBA_ERROR;
765 return -ENOMEM;
766 }
767
768 lpfc_printf_log(phba,
769 KERN_ERR, LOG_INIT,
770 "0491 Adapter Link is disabled.\n");
771 lpfc_down_link(phba, pmb);
772 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 773 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 774 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
775 lpfc_printf_log(phba,
776 KERN_ERR, LOG_INIT,
777 "2522 Adapter failed to issue DOWN_LINK"
778 " mbox command rc 0x%x\n", rc);
779
780 mempool_free(pmb, phba->mbox_mem_pool);
781 return -EIO;
782 }
6e7288d9
JS		 783 if (flag == MBX_POLL)
784 mempool_free(pmb, phba->mbox_mem_pool);
785
84d1b006
JS		 786 return 0;
787}
788
e59058c4 789/**
3621a710 790 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 791 * @phba: pointer to lpfc HBA data structure.
792 *
793 * This routine will do LPFC uninitialization before the HBA is reset when
794 * bringing down the SLI Layer.
795 *
796 * Return codes
797 * 0 - success.
798 * Any other value - error.
799 **/
dea3101e 800int
2e0fef85 801lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 802{
1b32f6aa
JS		 803 struct lpfc_vport **vports;
804 int i;
3772a991
JS		 805
806 if (phba->sli_rev <= LPFC_SLI_REV3) {
807 /* Disable interrupts */
808 writel(0, phba->HCregaddr);
809 readl(phba->HCregaddr); /* flush */
810 }
dea3101e 811
1b32f6aa
JS		 812 if (phba->pport->load_flag & FC_UNLOADING)
813 lpfc_cleanup_discovery_resources(phba->pport);
814 else {
815 vports = lpfc_create_vport_work_array(phba);
816 if (vports != NULL)
3772a991
JS		 817 for (i = 0; i <= phba->max_vports &&
818 vports[i] != NULL; i++)
1b32f6aa
JS		 819 lpfc_cleanup_discovery_resources(vports[i]);
820 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 821 }
822 return 0;
dea3101e 823}
824
68e814f5
JS		 825/**
826 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
827 * rspiocb which got deferred
828 *
829 * @phba: pointer to lpfc HBA data structure.
830 *
831 * This routine will cleanup completed slow path events after HBA is reset
832 * when bringing down the SLI Layer.
833 *
834 *
835 * Return codes
836 * void.
837 **/
838static void
839lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
840{
841 struct lpfc_iocbq *rspiocbq;
842 struct hbq_dmabuf *dmabuf;
843 struct lpfc_cq_event *cq_event;
844
845 spin_lock_irq(&phba->hbalock);
846 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
847 spin_unlock_irq(&phba->hbalock);
848
849 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
850 /* Get the response iocb from the head of work queue */
851 spin_lock_irq(&phba->hbalock);
852 list_remove_head(&phba->sli4_hba.sp_queue_event,
853 cq_event, struct lpfc_cq_event, list);
854 spin_unlock_irq(&phba->hbalock);
855
856 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
857 case CQE_CODE_COMPL_WQE:
858 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
859 cq_event);
860 lpfc_sli_release_iocbq(phba, rspiocbq);
861 break;
862 case CQE_CODE_RECEIVE:
863 case CQE_CODE_RECEIVE_V1:
864 dmabuf = container_of(cq_event, struct hbq_dmabuf,
865 cq_event);
866 lpfc_in_buf_free(phba, &dmabuf->dbuf);
867 }
868 }
869}
870
e59058c4 871/**
bcece5f5 872 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 873 * @phba: pointer to lpfc HBA data structure.
874 *
bcece5f5
JS		 875 * This routine will cleanup posted ELS buffers after the HBA is reset
876 * when bringing down the SLI Layer.
877 *
e59058c4
JS		 878 *
879 * Return codes
bcece5f5 880 * void.
e59058c4 881 **/
bcece5f5
JS		 882static void
883lpfc_hba_free_post_buf(struct lpfc_hba *phba)
41415862
JW		 884{
885 struct lpfc_sli *psli = &phba->sli;
886 struct lpfc_sli_ring *pring;
887 struct lpfc_dmabuf *mp, *next_mp;
07eab624
JS		 888 LIST_HEAD(buflist);
889 int count;
41415862 890
92d7f7b0
JS		 891 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
892 lpfc_sli_hbqbuf_free_all(phba);
893 else {
894 /* Cleanup preposted buffers on the ELS ring */
895 pring = &psli->ring[LPFC_ELS_RING];
07eab624
JS		 896 spin_lock_irq(&phba->hbalock);
897 list_splice_init(&pring->postbufq, &buflist);
898 spin_unlock_irq(&phba->hbalock);
899
900 count = 0;
901 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
92d7f7b0 902 list_del(&mp->list);
07eab624 903 count++;
92d7f7b0
JS		 904 lpfc_mbuf_free(phba, mp->virt, mp->phys);
905 kfree(mp);
906 }
07eab624
JS		 907
908 spin_lock_irq(&phba->hbalock);
909 pring->postbufq_cnt -= count;
bcece5f5 910 spin_unlock_irq(&phba->hbalock);
41415862 911 }
bcece5f5
JS		 912}
913
914/**
915 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
916 * @phba: pointer to lpfc HBA data structure.
917 *
918 * This routine will cleanup the txcmplq after the HBA is reset when bringing
919 * down the SLI Layer.
920 *
921 * Return codes
922 * void
923 **/
924static void
925lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
926{
927 struct lpfc_sli *psli = &phba->sli;
928 struct lpfc_sli_ring *pring;
929 LIST_HEAD(completions);
930 int i;
931
41415862
JW		 932 for (i = 0; i < psli->num_rings; i++) {
933 pring = &psli->ring[i];
bcece5f5
JS		 934 if (phba->sli_rev >= LPFC_SLI_REV4)
935 spin_lock_irq(&pring->ring_lock);
936 else
937 spin_lock_irq(&phba->hbalock);
09372820
JS		 938 /* At this point in time the HBA is either reset or DOA. Either
939 * way, nothing should be on txcmplq as it will NEVER complete.
940 */
941 list_splice_init(&pring->txcmplq, &completions);
db55fba8 942 pring->txcmplq_cnt = 0;
bcece5f5
JS		 943
944 if (phba->sli_rev >= LPFC_SLI_REV4)
945 spin_unlock_irq(&pring->ring_lock);
946 else
947 spin_unlock_irq(&phba->hbalock);
09372820 948
a257bf90
JS		 949 /* Cancel all the IOCBs from the completions list */
950 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
951 IOERR_SLI_ABORTED);
41415862
JW		 952 lpfc_sli_abort_iocb_ring(phba, pring);
953 }
bcece5f5 954}
41415862 955
bcece5f5
JS		 956/**
957 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
958 int i;
959 * @phba: pointer to lpfc HBA data structure.
960 *
961 * This routine will do uninitialization after the HBA is reset when bring
962 * down the SLI Layer.
963 *
964 * Return codes
965 * 0 - success.
966 * Any other value - error.
967 **/
968static int
969lpfc_hba_down_post_s3(struct lpfc_hba *phba)
970{
971 lpfc_hba_free_post_buf(phba);
972 lpfc_hba_clean_txcmplq(phba);
41415862
JW		 973 return 0;
974}
5af5eee7 975
da0436e9
JS		 976/**
977 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
978 * @phba: pointer to lpfc HBA data structure.
979 *
980 * This routine will do uninitialization after the HBA is reset when bring
981 * down the SLI Layer.
982 *
983 * Return codes
af901ca1 984 * 0 - success.
da0436e9
JS		 985 * Any other value - error.
986 **/
987static int
988lpfc_hba_down_post_s4(struct lpfc_hba *phba)
989{
990 struct lpfc_scsi_buf *psb, *psb_next;
991 LIST_HEAD(aborts);
da0436e9 992 unsigned long iflag = 0;
0f65ff68 993 struct lpfc_sglq *sglq_entry = NULL;
dafe8cea
JS		 994 struct lpfc_sli *psli = &phba->sli;
995 struct lpfc_sli_ring *pring;
0f65ff68 996
bcece5f5
JS		 997 lpfc_hba_free_post_buf(phba);
998 lpfc_hba_clean_txcmplq(phba);
dafe8cea 999 pring = &psli->ring[LPFC_ELS_RING];
bcece5f5 1000
da0436e9
JS		 1001 /* At this point in time the HBA is either reset or DOA. Either
1002 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1003 * on the lpfc_sgl_list so that it can either be freed if the
1004 * driver is unloading or reposted if the driver is restarting
1005 * the port.
1006 */
1007 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1008 /* scsl_buf_list */
1009 /* abts_sgl_list_lock required because worker thread uses this
1010 * list.
1011 */
1012 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 1013 list_for_each_entry(sglq_entry,
1014 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1015 sglq_entry->state = SGL_FREED;
1016
dafe8cea 1017 spin_lock(&pring->ring_lock);
da0436e9
JS		 1018 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1019 &phba->sli4_hba.lpfc_sgl_list);
dafe8cea 1020 spin_unlock(&pring->ring_lock);
da0436e9
JS		 1021 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1022 /* abts_scsi_buf_list_lock required because worker thread uses this
1023 * list.
1024 */
1025 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1027 &aborts);
1028 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1029 spin_unlock_irq(&phba->hbalock);
1030
1031 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1032 psb->pCmd = NULL;
1033 psb->status = IOSTAT_SUCCESS;
1034 }
a40fc5f0
JS		 1035 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1036 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1037 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
68e814f5
JS		 1038
1039 lpfc_sli4_free_sp_events(phba);
da0436e9
JS		 1040 return 0;
1041}
1042
1043/**
1044 * lpfc_hba_down_post - Wrapper func for hba down post routine
1045 * @phba: pointer to lpfc HBA data structure.
1046 *
1047 * This routine wraps the actual SLI3 or SLI4 routine for performing
1048 * uninitialization after the HBA is reset when bring down the SLI Layer.
1049 *
1050 * Return codes
af901ca1 1051 * 0 - success.
da0436e9
JS		 1052 * Any other value - error.
1053 **/
1054int
1055lpfc_hba_down_post(struct lpfc_hba *phba)
1056{
1057 return (*phba->lpfc_hba_down_post)(phba);
1058}
41415862 1059
e59058c4 1060/**
3621a710 1061 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 1062 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1063 *
1064 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1065 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1066 * work-port-events bitmap and the worker thread is notified. This timeout
1067 * event will be used by the worker thread to invoke the actual timeout
1068 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1069 * be performed in the timeout handler and the HBA timeout event bit shall
1070 * be cleared by the worker thread after it has taken the event bitmap out.
1071 **/
a6ababd2 1072static void
858c9f6c
JS		 1073lpfc_hb_timeout(unsigned long ptr)
1074{
1075 struct lpfc_hba *phba;
5e9d9b82 1076 uint32_t tmo_posted;
858c9f6c
JS		 1077 unsigned long iflag;
1078
1079 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 1080
1081 /* Check for heart beat timeout conditions */
858c9f6c 1082 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 1083 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1084 if (!tmo_posted)
858c9f6c
JS		 1085 phba->pport->work_port_events |= WORKER_HB_TMO;
1086 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1087
9399627f 1088 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 1089 if (!tmo_posted)
1090 lpfc_worker_wake_up(phba);
858c9f6c
JS		 1091 return;
1092}
1093
19ca7609
JS		 1094/**
1095 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1096 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1097 *
1098 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1099 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1100 * work-port-events bitmap and the worker thread is notified. This timeout
1101 * event will be used by the worker thread to invoke the actual timeout
1102 * handler routine, lpfc_rrq_handler. Any periodical operations will
1103 * be performed in the timeout handler and the RRQ timeout event bit shall
1104 * be cleared by the worker thread after it has taken the event bitmap out.
1105 **/
1106static void
1107lpfc_rrq_timeout(unsigned long ptr)
1108{
1109 struct lpfc_hba *phba;
19ca7609
JS		 1110 unsigned long iflag;
1111
1112 phba = (struct lpfc_hba *)ptr;
1113 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
06918ac5
JS		 1114 if (!(phba->pport->load_flag & FC_UNLOADING))
1115 phba->hba_flag |= HBA_RRQ_ACTIVE;
1116 else
1117 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
19ca7609 1118 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
06918ac5
JS		 1119
1120 if (!(phba->pport->load_flag & FC_UNLOADING))
1121 lpfc_worker_wake_up(phba);
19ca7609
JS		 1122}
1123
e59058c4 1124/**
3621a710 1125 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 1126 * @phba: pointer to lpfc hba data structure.
1127 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1128 *
1129 * This is the callback function to the lpfc heart-beat mailbox command.
1130 * If configured, the lpfc driver issues the heart-beat mailbox command to
1131 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1132 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1133 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1134 * heart-beat outstanding state. Once the mailbox command comes back and
1135 * no error conditions detected, the heart-beat mailbox command timer is
1136 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1137 * state is cleared for the next heart-beat. If the timer expired with the
1138 * heart-beat outstanding state set, the driver will put the HBA offline.
1139 **/
858c9f6c
JS		 1140static void
1141lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1142{
1143 unsigned long drvr_flag;
1144
1145 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1146 phba->hb_outstanding = 0;
1147 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1148
9399627f 1149 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1150 mempool_free(pmboxq, phba->mbox_mem_pool);
1151 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1152 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1153 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c 1154 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1155 jiffies +
1156 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 1157 return;
1158}
1159
e59058c4 1160/**
3621a710 1161 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1162 * @phba: pointer to lpfc hba data structure.
1163 *
1164 * This is the actual HBA-timer timeout handler to be invoked by the worker
1165 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1166 * handler performs any periodic operations needed for the device. If such
1167 * periodic event has already been attended to either in the interrupt handler
1168 * or by processing slow-ring or fast-ring events within the HBA-timer
1169 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1170 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1171 * is configured and there is no heart-beat mailbox command outstanding, a
1172 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1173 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1174 * to offline.
1175 **/
858c9f6c
JS		 1176void
1177lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1178{
45ed1190 1179 struct lpfc_vport **vports;
858c9f6c 1180 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1181 struct lpfc_dmabuf *buf_ptr;
45ed1190 1182 int retval, i;
858c9f6c 1183 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1184 LIST_HEAD(completions);
858c9f6c 1185
45ed1190
JS		 1186 vports = lpfc_create_vport_work_array(phba);
1187 if (vports != NULL)
4258e98e 1188 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
45ed1190 1189 lpfc_rcv_seq_check_edtov(vports[i]);
4258e98e
JS		 1190 lpfc_fdmi_num_disc_check(vports[i]);
1191 }
45ed1190
JS		 1192 lpfc_destroy_vport_work_array(phba, vports);
1193
858c9f6c 1194 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1195 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1196 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1197 return;
1198
1199 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c 1200
256ec0d0
JS		 1201 if (time_after(phba->last_completion_time +
1202 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1203 jiffies)) {
858c9f6c
JS		 1204 spin_unlock_irq(&phba->pport->work_port_lock);
1205 if (!phba->hb_outstanding)
1206 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1207 jiffies +
1208 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 1209 else
1210 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1211 jiffies +
1212 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
858c9f6c
JS		 1213 return;
1214 }
1215 spin_unlock_irq(&phba->pport->work_port_lock);
1216
0ff10d46
JS		 1217 if (phba->elsbuf_cnt &&
1218 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1219 spin_lock_irq(&phba->hbalock);
1220 list_splice_init(&phba->elsbuf, &completions);
1221 phba->elsbuf_cnt = 0;
1222 phba->elsbuf_prev_cnt = 0;
1223 spin_unlock_irq(&phba->hbalock);
1224
1225 while (!list_empty(&completions)) {
1226 list_remove_head(&completions, buf_ptr,
1227 struct lpfc_dmabuf, list);
1228 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1229 kfree(buf_ptr);
1230 }
1231 }
1232 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1233
858c9f6c 1234 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1235 if (phba->cfg_enable_hba_heartbeat) {
1236 if (!phba->hb_outstanding) {
bc73905a
JS		 1237 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1238 (list_empty(&psli->mboxq))) {
1239 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1240 GFP_KERNEL);
1241 if (!pmboxq) {
1242 mod_timer(&phba->hb_tmofunc,
1243 jiffies +
256ec0d0
JS		 1244 msecs_to_jiffies(1000 *
1245 LPFC_HB_MBOX_INTERVAL));
bc73905a
JS		 1246 return;
1247 }
1248
1249 lpfc_heart_beat(phba, pmboxq);
1250 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1251 pmboxq->vport = phba->pport;
1252 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1253 MBX_NOWAIT);
1254
1255 if (retval != MBX_BUSY &&
1256 retval != MBX_SUCCESS) {
1257 mempool_free(pmboxq,
1258 phba->mbox_mem_pool);
1259 mod_timer(&phba->hb_tmofunc,
1260 jiffies +
256ec0d0
JS		 1261 msecs_to_jiffies(1000 *
1262 LPFC_HB_MBOX_INTERVAL));
bc73905a
JS		 1263 return;
1264 }
1265 phba->skipped_hb = 0;
1266 phba->hb_outstanding = 1;
1267 } else if (time_before_eq(phba->last_completion_time,
1268 phba->skipped_hb)) {
1269 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1270 "2857 Last completion time not "
1271 " updated in %d ms\n",
1272 jiffies_to_msecs(jiffies
1273 - phba->last_completion_time));
1274 } else
1275 phba->skipped_hb = jiffies;
1276
858c9f6c 1277 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1278 jiffies +
1279 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
858c9f6c 1280 return;
13815c83
JS		 1281 } else {
1282 /*
1283 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1284 * we need to give the hb mailbox cmd a chance to
1285 * complete or TMO.
13815c83 1286 */
dcf2a4e0
JS		 1287 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1288 "0459 Adapter heartbeat still out"
1289 "standing:last compl time was %d ms.\n",
1290 jiffies_to_msecs(jiffies
1291 - phba->last_completion_time));
1292 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1293 jiffies +
1294 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
858c9f6c 1295 }
4258e98e
JS		 1296 } else {
1297 mod_timer(&phba->hb_tmofunc,
1298 jiffies +
1299 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 1300 }
1301}
1302
e59058c4 1303/**
3621a710 1304 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1305 * @phba: pointer to lpfc hba data structure.
1306 *
1307 * This routine is called to bring the HBA offline when HBA hardware error
1308 * other than Port Error 6 has been detected.
1309 **/
09372820
JS		 1310static void
1311lpfc_offline_eratt(struct lpfc_hba *phba)
1312{
1313 struct lpfc_sli *psli = &phba->sli;
1314
1315 spin_lock_irq(&phba->hbalock);
f4b4c68f 1316 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820 1317 spin_unlock_irq(&phba->hbalock);
618a5230 1318 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
09372820
JS		 1319
1320 lpfc_offline(phba);
1321 lpfc_reset_barrier(phba);
f4b4c68f 1322 spin_lock_irq(&phba->hbalock);
09372820 1323 lpfc_sli_brdreset(phba);
f4b4c68f 1324 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1325 lpfc_hba_down_post(phba);
1326 lpfc_sli_brdready(phba, HS_MBRDY);
1327 lpfc_unblock_mgmt_io(phba);
1328 phba->link_state = LPFC_HBA_ERROR;
1329 return;
1330}
1331
da0436e9
JS		 1332/**
1333 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1334 * @phba: pointer to lpfc hba data structure.
1335 *
1336 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1337 * other than Port Error 6 has been detected.
1338 **/
a88dbb6a 1339void
da0436e9
JS		 1340lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1341{
946727dc
JS		 1342 spin_lock_irq(&phba->hbalock);
1343 phba->link_state = LPFC_HBA_ERROR;
1344 spin_unlock_irq(&phba->hbalock);
1345
618a5230 1346 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
da0436e9 1347 lpfc_offline(phba);
da0436e9 1348 lpfc_hba_down_post(phba);
da0436e9 1349 lpfc_unblock_mgmt_io(phba);
da0436e9
JS		 1350}
1351
a257bf90
JS		 1352/**
1353 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1354 * @phba: pointer to lpfc hba data structure.
1355 *
1356 * This routine is invoked to handle the deferred HBA hardware error
1357 * conditions. This type of error is indicated by HBA by setting ER1
1358 * and another ER bit in the host status register. The driver will
1359 * wait until the ER1 bit clears before handling the error condition.
1360 **/
1361static void
1362lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1363{
1364 uint32_t old_host_status = phba->work_hs;
a257bf90
JS		 1365 struct lpfc_sli *psli = &phba->sli;
1366
f4b4c68f
JS		 1367 /* If the pci channel is offline, ignore possible errors,
1368 * since we cannot communicate with the pci card anyway.
1369 */
1370 if (pci_channel_offline(phba->pcidev)) {
1371 spin_lock_irq(&phba->hbalock);
1372 phba->hba_flag &= ~DEFER_ERATT;
1373 spin_unlock_irq(&phba->hbalock);
1374 return;
1375 }
1376
a257bf90
JS		 1377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1378 "0479 Deferred Adapter Hardware Error "
1379 "Data: x%x x%x x%x\n",
1380 phba->work_hs,
1381 phba->work_status[0], phba->work_status[1]);
1382
1383 spin_lock_irq(&phba->hbalock);
f4b4c68f 1384 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1385 spin_unlock_irq(&phba->hbalock);
1386
1387
1388 /*
1389 * Firmware stops when it triggred erratt. That could cause the I/Os
1390 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1391 * SCSI layer retry it after re-establishing link.
1392 */
db55fba8 1393 lpfc_sli_abort_fcp_rings(phba);
a257bf90
JS		 1394
1395 /*
1396 * There was a firmware error. Take the hba offline and then
1397 * attempt to restart it.
1398 */
618a5230 1399 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
a257bf90
JS		 1400 lpfc_offline(phba);
1401
1402 /* Wait for the ER1 bit to clear.*/
1403 while (phba->work_hs & HS_FFER1) {
1404 msleep(100);
9940b97b
JS		 1405 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1406 phba->work_hs = UNPLUG_ERR ;
1407 break;
1408 }
a257bf90
JS		 1409 /* If driver is unloading let the worker thread continue */
1410 if (phba->pport->load_flag & FC_UNLOADING) {
1411 phba->work_hs = 0;
1412 break;
1413 }
1414 }
1415
1416 /*
1417 * This is to ptrotect against a race condition in which
1418 * first write to the host attention register clear the
1419 * host status register.
1420 */
1421 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1422 phba->work_hs = old_host_status & ~HS_FFER1;
1423
3772a991 1424 spin_lock_irq(&phba->hbalock);
a257bf90 1425 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1426 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1427 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1428 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1429}
1430
3772a991
JS		 1431static void
1432lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1433{
1434 struct lpfc_board_event_header board_event;
1435 struct Scsi_Host *shost;
1436
1437 board_event.event_type = FC_REG_BOARD_EVENT;
1438 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1439 shost = lpfc_shost_from_vport(phba->pport);
1440 fc_host_post_vendor_event(shost, fc_get_event_number(),
1441 sizeof(board_event),
1442 (char *) &board_event,
1443 LPFC_NL_VENDOR_ID);
1444}
1445
e59058c4 1446/**
3772a991 1447 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1448 * @phba: pointer to lpfc hba data structure.
1449 *
1450 * This routine is invoked to handle the following HBA hardware error
1451 * conditions:
1452 * 1 - HBA error attention interrupt
1453 * 2 - DMA ring index out of range
1454 * 3 - Mailbox command came back as unknown
1455 **/
3772a991
JS		 1456static void
1457lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1458{
2e0fef85 1459 struct lpfc_vport *vport = phba->pport;
2e0fef85 1460 struct lpfc_sli *psli = &phba->sli;
d2873e4c 1461 uint32_t event_data;
57127f15
JS		 1462 unsigned long temperature;
1463 struct temp_event temp_event_data;
92d7f7b0 1464 struct Scsi_Host *shost;
2e0fef85 1465
8d63f375 1466 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1467 * since we cannot communicate with the pci card anyway.
1468 */
1469 if (pci_channel_offline(phba->pcidev)) {
1470 spin_lock_irq(&phba->hbalock);
1471 phba->hba_flag &= ~DEFER_ERATT;
1472 spin_unlock_irq(&phba->hbalock);
8d63f375 1473 return;
3772a991
JS		 1474 }
1475
13815c83
JS		 1476 /* If resets are disabled then leave the HBA alone and return */
1477 if (!phba->cfg_enable_hba_reset)
1478 return;
dea3101e 1479
ea2151b4 1480 /* Send an internal error event to mgmt application */
3772a991 1481 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1482
a257bf90
JS		 1483 if (phba->hba_flag & DEFER_ERATT)
1484 lpfc_handle_deferred_eratt(phba);
1485
dcf2a4e0
JS		 1486 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1487 if (phba->work_hs & HS_FFER6)
1488 /* Re-establishing Link */
1489 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490 "1301 Re-establishing Link "
1491 "Data: x%x x%x x%x\n",
1492 phba->work_hs, phba->work_status[0],
1493 phba->work_status[1]);
1494 if (phba->work_hs & HS_FFER8)
1495 /* Device Zeroization */
1496 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1497 "2861 Host Authentication device "
1498 "zeroization Data:x%x x%x x%x\n",
1499 phba->work_hs, phba->work_status[0],
1500 phba->work_status[1]);
58da1ffb 1501
92d7f7b0 1502 spin_lock_irq(&phba->hbalock);
f4b4c68f 1503 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1504 spin_unlock_irq(&phba->hbalock);
dea3101e 1505
1506 /*
1507 * Firmware stops when it triggled erratt with HS_FFER6.
1508 * That could cause the I/Os dropped by the firmware.
1509 * Error iocb (I/O) on txcmplq and let the SCSI layer
1510 * retry it after re-establishing link.
1511 */
db55fba8 1512 lpfc_sli_abort_fcp_rings(phba);
dea3101e 1513
dea3101e 1514 /*
1515 * There was a firmware error. Take the hba offline and then
1516 * attempt to restart it.
1517 */
618a5230 1518 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
dea3101e 1519 lpfc_offline(phba);
41415862 1520 lpfc_sli_brdrestart(phba);
dea3101e 1521 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1522 lpfc_unblock_mgmt_io(phba);
dea3101e 1523 return;
1524 }
46fa311e 1525 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1526 } else if (phba->work_hs & HS_CRIT_TEMP) {
1527 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1528 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1529 temp_event_data.event_code = LPFC_CRIT_TEMP;
1530 temp_event_data.data = (uint32_t)temperature;
1531
1532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1533 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1534 "(%ld), taking this port offline "
1535 "Data: x%x x%x x%x\n",
1536 temperature, phba->work_hs,
1537 phba->work_status[0], phba->work_status[1]);
1538
1539 shost = lpfc_shost_from_vport(phba->pport);
1540 fc_host_post_vendor_event(shost, fc_get_event_number(),
1541 sizeof(temp_event_data),
1542 (char *) &temp_event_data,
1543 SCSI_NL_VID_TYPE_PCI
1544 | PCI_VENDOR_ID_EMULEX);
1545
7af67051 1546 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1547 phba->over_temp_state = HBA_OVER_TEMP;
1548 spin_unlock_irq(&phba->hbalock);
09372820 1549 lpfc_offline_eratt(phba);
57127f15 1550
dea3101e 1551 } else {
1552 /* The if clause above forces this code path when the status
9399627f
JS		 1553 * failure is a value other than FFER6. Do not call the offline
1554 * twice. This is the adapter hardware error path.
dea3101e 1555 */
1556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1557 "0457 Adapter Hardware Error "
dea3101e 1558 "Data: x%x x%x x%x\n",
e8b62011 1559 phba->work_hs,
dea3101e 1560 phba->work_status[0], phba->work_status[1]);
1561
d2873e4c 1562 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1563 shost = lpfc_shost_from_vport(vport);
2e0fef85 1564 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1565 sizeof(event_data), (char *) &event_data,
1566 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1567
09372820 1568 lpfc_offline_eratt(phba);
dea3101e 1569 }
9399627f 1570 return;
dea3101e 1571}
1572
618a5230
JS		 1573/**
1574 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1575 * @phba: pointer to lpfc hba data structure.
1576 * @mbx_action: flag for mailbox shutdown action.
1577 *
1578 * This routine is invoked to perform an SLI4 port PCI function reset in
1579 * response to port status register polling attention. It waits for port
1580 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1581 * During this process, interrupt vectors are freed and later requested
1582 * for handling possible port resource change.
1583 **/
1584static int
e10b2022
JS		 1585lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1586 bool en_rn_msg)
618a5230
JS		 1587{
1588 int rc;
1589 uint32_t intr_mode;
1590
65791f1f
JS		 1591 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1592 LPFC_SLI_INTF_IF_TYPE_2) {
1593 /*
1594 * On error status condition, driver need to wait for port
1595 * ready before performing reset.
1596 */
1597 rc = lpfc_sli4_pdev_status_reg_wait(phba);
0e916ee7 1598 if (rc)
65791f1f
JS		 1599 return rc;
1600 }
0e916ee7 1601
65791f1f
JS		 1602 /* need reset: attempt for port recovery */
1603 if (en_rn_msg)
1604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1605 "2887 Reset Needed: Attempting Port "
1606 "Recovery...\n");
1607 lpfc_offline_prep(phba, mbx_action);
1608 lpfc_offline(phba);
1609 /* release interrupt for possible resource change */
1610 lpfc_sli4_disable_intr(phba);
1611 lpfc_sli_brdrestart(phba);
1612 /* request and enable interrupt */
1613 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1614 if (intr_mode == LPFC_INTR_ERROR) {
1615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1616 "3175 Failed to enable interrupt\n");
1617 return -EIO;
618a5230 1618 }
65791f1f
JS		 1619 phba->intr_mode = intr_mode;
1620 rc = lpfc_online(phba);
1621 if (rc == 0)
1622 lpfc_unblock_mgmt_io(phba);
1623
618a5230
JS		 1624 return rc;
1625}
1626
da0436e9
JS		 1627/**
1628 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1629 * @phba: pointer to lpfc hba data structure.
1630 *
1631 * This routine is invoked to handle the SLI4 HBA hardware error attention
1632 * conditions.
1633 **/
1634static void
1635lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1636{
1637 struct lpfc_vport *vport = phba->pport;
1638 uint32_t event_data;
1639 struct Scsi_Host *shost;
2fcee4bf 1640 uint32_t if_type;
2e90f4b5
JS		 1641 struct lpfc_register portstat_reg = {0};
1642 uint32_t reg_err1, reg_err2;
1643 uint32_t uerrlo_reg, uemasklo_reg;
65791f1f 1644 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
e10b2022 1645 bool en_rn_msg = true;
946727dc 1646 struct temp_event temp_event_data;
65791f1f
JS		 1647 struct lpfc_register portsmphr_reg;
1648 int rc, i;
da0436e9
JS		 1649
1650 /* If the pci channel is offline, ignore possible errors, since
1651 * we cannot communicate with the pci card anyway.
1652 */
1653 if (pci_channel_offline(phba->pcidev))
1654 return;
da0436e9 1655
65791f1f 1656 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
2fcee4bf
JS		 1657 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1658 switch (if_type) {
1659 case LPFC_SLI_INTF_IF_TYPE_0:
2e90f4b5
JS		 1660 pci_rd_rc1 = lpfc_readl(
1661 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1662 &uerrlo_reg);
1663 pci_rd_rc2 = lpfc_readl(
1664 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1665 &uemasklo_reg);
1666 /* consider PCI bus read error as pci_channel_offline */
1667 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1668 return;
65791f1f
JS		 1669 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1670 lpfc_sli4_offline_eratt(phba);
1671 return;
1672 }
1673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674 "7623 Checking UE recoverable");
1675
1676 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1677 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1678 &portsmphr_reg.word0))
1679 continue;
1680
1681 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1682 &portsmphr_reg);
1683 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1684 LPFC_PORT_SEM_UE_RECOVERABLE)
1685 break;
1686 /*Sleep for 1Sec, before checking SEMAPHORE */
1687 msleep(1000);
1688 }
1689
1690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1691 "4827 smphr_port_status x%x : Waited %dSec",
1692 smphr_port_status, i);
1693
1694 /* Recoverable UE, reset the HBA device */
1695 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1696 LPFC_PORT_SEM_UE_RECOVERABLE) {
1697 for (i = 0; i < 20; i++) {
1698 msleep(1000);
1699 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1700 &portsmphr_reg.word0) &&
1701 (LPFC_POST_STAGE_PORT_READY ==
1702 bf_get(lpfc_port_smphr_port_status,
1703 &portsmphr_reg))) {
1704 rc = lpfc_sli4_port_sta_fn_reset(phba,
1705 LPFC_MBX_NO_WAIT, en_rn_msg);
1706 if (rc == 0)
1707 return;
1708 lpfc_printf_log(phba,
1709 KERN_ERR, LOG_INIT,
1710 "4215 Failed to recover UE");
1711 break;
1712 }
1713 }
1714 }
1715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1716 "7624 Firmware not ready: Failing UE recovery,"
1717 " waited %dSec", i);
2fcee4bf
JS		 1718 lpfc_sli4_offline_eratt(phba);
1719 break;
946727dc 1720
2fcee4bf 1721 case LPFC_SLI_INTF_IF_TYPE_2:
2e90f4b5
JS		 1722 pci_rd_rc1 = lpfc_readl(
1723 phba->sli4_hba.u.if_type2.STATUSregaddr,
1724 &portstat_reg.word0);
1725 /* consider PCI bus read error as pci_channel_offline */
6b5151fd
JS		 1726 if (pci_rd_rc1 == -EIO) {
1727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1728 "3151 PCI bus read access failure: x%x\n",
1729 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2e90f4b5 1730 return;
6b5151fd 1731 }
2e90f4b5
JS		 1732 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1733 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2fcee4bf 1734 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2fcee4bf
JS		 1735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1736 "2889 Port Overtemperature event, "
946727dc
JS		 1737 "taking port offline Data: x%x x%x\n",
1738 reg_err1, reg_err2);
1739
310429ef 1740 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
946727dc
JS		 1741 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1742 temp_event_data.event_code = LPFC_CRIT_TEMP;
1743 temp_event_data.data = 0xFFFFFFFF;
1744
1745 shost = lpfc_shost_from_vport(phba->pport);
1746 fc_host_post_vendor_event(shost, fc_get_event_number(),
1747 sizeof(temp_event_data),
1748 (char *)&temp_event_data,
1749 SCSI_NL_VID_TYPE_PCI
1750 | PCI_VENDOR_ID_EMULEX);
1751
2fcee4bf
JS		 1752 spin_lock_irq(&phba->hbalock);
1753 phba->over_temp_state = HBA_OVER_TEMP;
1754 spin_unlock_irq(&phba->hbalock);
1755 lpfc_sli4_offline_eratt(phba);
946727dc 1756 return;
2fcee4bf 1757 }
2e90f4b5 1758 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
e10b2022 1759 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2e90f4b5 1760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e10b2022
JS		 1761 "3143 Port Down: Firmware Update "
1762 "Detected\n");
1763 en_rn_msg = false;
1764 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2e90f4b5
JS		 1765 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1767 "3144 Port Down: Debug Dump\n");
1768 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1769 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1771 "3145 Port Down: Provisioning\n");
618a5230 1772
946727dc
JS		 1773 /* If resets are disabled then leave the HBA alone and return */
1774 if (!phba->cfg_enable_hba_reset)
1775 return;
1776
618a5230 1777 /* Check port status register for function reset */
e10b2022
JS		 1778 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1779 en_rn_msg);
618a5230
JS		 1780 if (rc == 0) {
1781 /* don't report event on forced debug dump */
1782 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1783 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1784 return;
1785 else
1786 break;
2fcee4bf 1787 }
618a5230 1788 /* fall through for not able to recover */
6b5151fd
JS		 1789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1790 "3152 Unrecoverable error, bring the port "
1791 "offline\n");
2fcee4bf
JS		 1792 lpfc_sli4_offline_eratt(phba);
1793 break;
1794 case LPFC_SLI_INTF_IF_TYPE_1:
1795 default:
1796 break;
1797 }
2e90f4b5
JS		 1798 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1799 "3123 Report dump event to upper layer\n");
1800 /* Send an internal error event to mgmt application */
1801 lpfc_board_errevt_to_mgmt(phba);
1802
1803 event_data = FC_REG_DUMP_EVENT;
1804 shost = lpfc_shost_from_vport(vport);
1805 fc_host_post_vendor_event(shost, fc_get_event_number(),
1806 sizeof(event_data), (char *) &event_data,
1807 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
da0436e9
JS		 1808}
1809
1810/**
1811 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1812 * @phba: pointer to lpfc HBA data structure.
1813 *
1814 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1815 * routine from the API jump table function pointer from the lpfc_hba struct.
1816 *
1817 * Return codes
af901ca1 1818 * 0 - success.
da0436e9
JS		 1819 * Any other value - error.
1820 **/
1821void
1822lpfc_handle_eratt(struct lpfc_hba *phba)
1823{
1824 (*phba->lpfc_handle_eratt)(phba);
1825}
1826
e59058c4 1827/**
3621a710 1828 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1829 * @phba: pointer to lpfc hba data structure.
1830 *
1831 * This routine is invoked from the worker thread to handle a HBA host
1832 * attention link event.
1833 **/
dea3101e 1834void
2e0fef85 1835lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1836{
2e0fef85
JS		 1837 struct lpfc_vport *vport = phba->pport;
1838 struct lpfc_sli *psli = &phba->sli;
dea3101e 1839 LPFC_MBOXQ_t *pmb;
1840 volatile uint32_t control;
1841 struct lpfc_dmabuf *mp;
09372820 1842 int rc = 0;
dea3101e 1843
1844 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1845 if (!pmb) {
1846 rc = 1;
dea3101e 1847 goto lpfc_handle_latt_err_exit;
09372820 1848 }
dea3101e 1849
1850 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1851 if (!mp) {
1852 rc = 2;
dea3101e 1853 goto lpfc_handle_latt_free_pmb;
09372820 1854 }
dea3101e 1855
1856 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1857 if (!mp->virt) {
1858 rc = 3;
dea3101e 1859 goto lpfc_handle_latt_free_mp;
09372820 1860 }
dea3101e 1861
6281bfe0 1862 /* Cleanup any outstanding ELS commands */
549e55cd 1863 lpfc_els_flush_all_cmd(phba);
dea3101e 1864
1865 psli->slistat.link_event++;
76a95d75
JS		 1866 lpfc_read_topology(phba, pmb, mp);
1867 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1868 pmb->vport = vport;
0d2b6b83
JS		 1869 /* Block ELS IOCBs until we have processed this mbox command */
1870 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1871 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1872 if (rc == MBX_NOT_FINISHED) {
1873 rc = 4;
14691150 1874 goto lpfc_handle_latt_free_mbuf;
09372820 1875 }
dea3101e 1876
1877 /* Clear Link Attention in HA REG */
2e0fef85 1878 spin_lock_irq(&phba->hbalock);
dea3101e 1879 writel(HA_LATT, phba->HAregaddr);
1880 readl(phba->HAregaddr); /* flush */
2e0fef85 1881 spin_unlock_irq(&phba->hbalock);
dea3101e 1882
1883 return;
1884
14691150 1885lpfc_handle_latt_free_mbuf:
0d2b6b83 1886 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1887 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1888lpfc_handle_latt_free_mp:
1889 kfree(mp);
1890lpfc_handle_latt_free_pmb:
1dcb58e5 1891 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1892lpfc_handle_latt_err_exit:
1893 /* Enable Link attention interrupts */
2e0fef85 1894 spin_lock_irq(&phba->hbalock);
dea3101e 1895 psli->sli_flag |= LPFC_PROCESS_LA;
1896 control = readl(phba->HCregaddr);
1897 control |= HC_LAINT_ENA;
1898 writel(control, phba->HCregaddr);
1899 readl(phba->HCregaddr); /* flush */
1900
1901 /* Clear Link Attention in HA REG */
1902 writel(HA_LATT, phba->HAregaddr);
1903 readl(phba->HAregaddr); /* flush */
2e0fef85 1904 spin_unlock_irq(&phba->hbalock);
dea3101e 1905 lpfc_linkdown(phba);
2e0fef85 1906 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1907
09372820
JS		 1908 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1909 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1910
1911 return;
1912}
1913
e59058c4 1914/**
3621a710 1915 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1916 * @phba: pointer to lpfc hba data structure.
1917 * @vpd: pointer to the vital product data.
1918 * @len: length of the vital product data in bytes.
1919 *
1920 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1921 * an array of characters. In this routine, the ModelName, ProgramType, and
1922 * ModelDesc, etc. fields of the phba data structure will be populated.
1923 *
1924 * Return codes
1925 * 0 - pointer to the VPD passed in is NULL
1926 * 1 - success
1927 **/
3772a991 1928int
2e0fef85 1929lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1930{
1931 uint8_t lenlo, lenhi;
07da60c1 1932 int Length;
dea3101e 1933 int i, j;
1934 int finished = 0;
1935 int index = 0;
1936
1937 if (!vpd)
1938 return 0;
1939
1940 /* Vital Product */
ed957684 1941 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1942 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1943 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1944 (uint32_t) vpd[3]);
74b72a59 1945 while (!finished && (index < (len - 4))) {
dea3101e 1946 switch (vpd[index]) {
1947 case 0x82:
74b72a59 1948 case 0x91:
dea3101e 1949 index += 1;
1950 lenlo = vpd[index];
1951 index += 1;
1952 lenhi = vpd[index];
1953 index += 1;
1954 i = ((((unsigned short)lenhi) << 8) + lenlo);
1955 index += i;
1956 break;
1957 case 0x90:
1958 index += 1;
1959 lenlo = vpd[index];
1960 index += 1;
1961 lenhi = vpd[index];
1962 index += 1;
1963 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1964 if (Length > len - index)
1965 Length = len - index;
dea3101e 1966 while (Length > 0) {
1967 /* Look for Serial Number */
1968 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1969 index += 2;
1970 i = vpd[index];
1971 index += 1;
1972 j = 0;
1973 Length -= (3+i);
1974 while(i--) {
1975 phba->SerialNumber[j++] = vpd[index++];
1976 if (j == 31)
1977 break;
1978 }
1979 phba->SerialNumber[j] = 0;
1980 continue;
1981 }
1982 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1983 phba->vpd_flag |= VPD_MODEL_DESC;
1984 index += 2;
1985 i = vpd[index];
1986 index += 1;
1987 j = 0;
1988 Length -= (3+i);
1989 while(i--) {
1990 phba->ModelDesc[j++] = vpd[index++];
1991 if (j == 255)
1992 break;
1993 }
1994 phba->ModelDesc[j] = 0;
1995 continue;
1996 }
1997 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1998 phba->vpd_flag |= VPD_MODEL_NAME;
1999 index += 2;
2000 i = vpd[index];
2001 index += 1;
2002 j = 0;
2003 Length -= (3+i);
2004 while(i--) {
2005 phba->ModelName[j++] = vpd[index++];
2006 if (j == 79)
2007 break;
2008 }
2009 phba->ModelName[j] = 0;
2010 continue;
2011 }
2012 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2013 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2014 index += 2;
2015 i = vpd[index];
2016 index += 1;
2017 j = 0;
2018 Length -= (3+i);
2019 while(i--) {
2020 phba->ProgramType[j++] = vpd[index++];
2021 if (j == 255)
2022 break;
2023 }
2024 phba->ProgramType[j] = 0;
2025 continue;
2026 }
2027 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2028 phba->vpd_flag |= VPD_PORT;
2029 index += 2;
2030 i = vpd[index];
2031 index += 1;
2032 j = 0;
2033 Length -= (3+i);
2034 while(i--) {
cd1c8301
JS		 2035 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2036 (phba->sli4_hba.pport_name_sta ==
2037 LPFC_SLI4_PPNAME_GET)) {
2038 j++;
2039 index++;
2040 } else
2041 phba->Port[j++] = vpd[index++];
2042 if (j == 19)
2043 break;
dea3101e 2044 }
cd1c8301
JS		 2045 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2046 (phba->sli4_hba.pport_name_sta ==
2047 LPFC_SLI4_PPNAME_NON))
2048 phba->Port[j] = 0;
dea3101e 2049 continue;
2050 }
2051 else {
2052 index += 2;
2053 i = vpd[index];
2054 index += 1;
2055 index += i;
2056 Length -= (3 + i);
2057 }
2058 }
2059 finished = 0;
2060 break;
2061 case 0x78:
2062 finished = 1;
2063 break;
2064 default:
2065 index ++;
2066 break;
2067 }
74b72a59 2068 }
dea3101e 2069
2070 return(1);
2071}
2072
e59058c4 2073/**
3621a710 2074 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 2075 * @phba: pointer to lpfc hba data structure.
2076 * @mdp: pointer to the data structure to hold the derived model name.
2077 * @descp: pointer to the data structure to hold the derived description.
2078 *
2079 * This routine retrieves HBA's description based on its registered PCI device
2080 * ID. The @descp passed into this function points to an array of 256 chars. It
2081 * shall be returned with the model name, maximum speed, and the host bus type.
2082 * The @mdp passed into this function points to an array of 80 chars. When the
2083 * function returns, the @mdp will be filled with the model name.
2084 **/
dea3101e 2085static void
2e0fef85 2086lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 2087{
2088 lpfc_vpd_t *vp;
fefcb2b6 2089 uint16_t dev_id = phba->pcidev->device;
74b72a59 2090 int max_speed;
84774a4d 2091 int GE = 0;
da0436e9 2092 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 2093 struct {
a747c9ce
JS		 2094 char *name;
2095 char *bus;
2096 char *function;
2097 } m = {"<Unknown>", "", ""};
74b72a59
JW		 2098
2099 if (mdp && mdp[0] != '\0'
2100 && descp && descp[0] != '\0')
2101 return;
2102
d38dd52c
JS		 2103 if (phba->lmt & LMT_32Gb)
2104 max_speed = 32;
2105 else if (phba->lmt & LMT_16Gb)
c0c11512
JS		 2106 max_speed = 16;
2107 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 2108 max_speed = 10;
2109 else if (phba->lmt & LMT_8Gb)
2110 max_speed = 8;
2111 else if (phba->lmt & LMT_4Gb)
2112 max_speed = 4;
2113 else if (phba->lmt & LMT_2Gb)
2114 max_speed = 2;
4169d868 2115 else if (phba->lmt & LMT_1Gb)
74b72a59 2116 max_speed = 1;
4169d868
JS		 2117 else
2118 max_speed = 0;
dea3101e 2119
2120 vp = &phba->vpd;
dea3101e 2121
e4adb204 2122 switch (dev_id) {
06325e74 2123 case PCI_DEVICE_ID_FIREFLY:
12222f4f
JS		 2124 m = (typeof(m)){"LP6000", "PCI",
2125 "Obsolete, Unsupported Fibre Channel Adapter"};
06325e74 2126 break;
dea3101e 2127 case PCI_DEVICE_ID_SUPERFLY:
2128 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
12222f4f 2129 m = (typeof(m)){"LP7000", "PCI", ""};
dea3101e 2130 else
12222f4f
JS		 2131 m = (typeof(m)){"LP7000E", "PCI", ""};
2132 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
dea3101e 2133 break;
2134 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce 2135 m = (typeof(m)){"LP8000", "PCI",
12222f4f 2136 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2137 break;
2138 case PCI_DEVICE_ID_CENTAUR:
2139 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
12222f4f 2140 m = (typeof(m)){"LP9002", "PCI", ""};
dea3101e 2141 else
12222f4f
JS		 2142 m = (typeof(m)){"LP9000", "PCI", ""};
2143 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
dea3101e 2144 break;
2145 case PCI_DEVICE_ID_RFLY:
a747c9ce 2146 m = (typeof(m)){"LP952", "PCI",
12222f4f 2147 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2148 break;
2149 case PCI_DEVICE_ID_PEGASUS:
a747c9ce 2150 m = (typeof(m)){"LP9802", "PCI-X",
12222f4f 2151 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2152 break;
2153 case PCI_DEVICE_ID_THOR:
a747c9ce 2154 m = (typeof(m)){"LP10000", "PCI-X",
12222f4f 2155 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2156 break;
2157 case PCI_DEVICE_ID_VIPER:
a747c9ce 2158 m = (typeof(m)){"LPX1000", "PCI-X",
12222f4f 2159 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2160 break;
2161 case PCI_DEVICE_ID_PFLY:
a747c9ce 2162 m = (typeof(m)){"LP982", "PCI-X",
12222f4f 2163 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2164 break;
2165 case PCI_DEVICE_ID_TFLY:
a747c9ce 2166 m = (typeof(m)){"LP1050", "PCI-X",
12222f4f 2167 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2168 break;
2169 case PCI_DEVICE_ID_HELIOS:
a747c9ce 2170 m = (typeof(m)){"LP11000", "PCI-X2",
12222f4f 2171 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2172 break;
e4adb204 2173 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce 2174 m = (typeof(m)){"LP11000-SP", "PCI-X2",
12222f4f 2175 "Obsolete, Unsupported Fibre Channel Adapter"};
e4adb204
JSEC		 2176 break;
2177 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce 2178 m = (typeof(m)){"LP11002-SP", "PCI-X2",
12222f4f 2179 "Obsolete, Unsupported Fibre Channel Adapter"};
e4adb204
JSEC		 2180 break;
2181 case PCI_DEVICE_ID_NEPTUNE:
12222f4f
JS		 2182 m = (typeof(m)){"LPe1000", "PCIe",
2183 "Obsolete, Unsupported Fibre Channel Adapter"};
e4adb204
JSEC		 2184 break;
2185 case PCI_DEVICE_ID_NEPTUNE_SCSP:
12222f4f
JS		 2186 m = (typeof(m)){"LPe1000-SP", "PCIe",
2187 "Obsolete, Unsupported Fibre Channel Adapter"};
e4adb204
JSEC		 2188 break;
2189 case PCI_DEVICE_ID_NEPTUNE_DCSP:
12222f4f
JS		 2190 m = (typeof(m)){"LPe1002-SP", "PCIe",
2191 "Obsolete, Unsupported Fibre Channel Adapter"};
e4adb204 2192 break;
dea3101e 2193 case PCI_DEVICE_ID_BMID:
a747c9ce 2194 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 2195 break;
2196 case PCI_DEVICE_ID_BSMB:
12222f4f
JS		 2197 m = (typeof(m)){"LP111", "PCI-X2",
2198 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2199 break;
2200 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 2201 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 2202 break;
e4adb204 2203 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 2204 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 2205 break;
2206 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 2207 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 2208 GE = 1;
e4adb204 2209 break;
dea3101e 2210 case PCI_DEVICE_ID_ZMID:
a747c9ce 2211 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 2212 break;
2213 case PCI_DEVICE_ID_ZSMB:
a747c9ce 2214 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 2215 break;
2216 case PCI_DEVICE_ID_LP101:
12222f4f
JS		 2217 m = (typeof(m)){"LP101", "PCI-X",
2218 "Obsolete, Unsupported Fibre Channel Adapter"};
dea3101e 2219 break;
2220 case PCI_DEVICE_ID_LP10000S:
12222f4f
JS		 2221 m = (typeof(m)){"LP10000-S", "PCI",
2222 "Obsolete, Unsupported Fibre Channel Adapter"};
06325e74 2223 break;
e4adb204 2224 case PCI_DEVICE_ID_LP11000S:
12222f4f
JS		 2225 m = (typeof(m)){"LP11000-S", "PCI-X2",
2226 "Obsolete, Unsupported Fibre Channel Adapter"};
18a3b596 2227 break;
e4adb204 2228 case PCI_DEVICE_ID_LPE11000S:
12222f4f
JS		 2229 m = (typeof(m)){"LPe11000-S", "PCIe",
2230 "Obsolete, Unsupported Fibre Channel Adapter"};
5cc36b3c 2231 break;
b87eab38 2232 case PCI_DEVICE_ID_SAT:
a747c9ce 2233 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2234 break;
2235 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 2236 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2237 break;
2238 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 2239 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2240 break;
2241 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 2242 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2243 break;
2244 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 2245 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2246 break;
2247 case PCI_DEVICE_ID_SAT_S:
a747c9ce 2248 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 2249 break;
84774a4d 2250 case PCI_DEVICE_ID_HORNET:
12222f4f
JS		 2251 m = (typeof(m)){"LP21000", "PCIe",
2252 "Obsolete, Unsupported FCoE Adapter"};
84774a4d
JS		 2253 GE = 1;
2254 break;
2255 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce 2256 m = (typeof(m)){"LPev12000", "PCIe IOV",
12222f4f 2257 "Obsolete, Unsupported Fibre Channel Adapter"};
84774a4d
JS		 2258 break;
2259 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce 2260 m = (typeof(m)){"LPev12000", "PCIe IOV",
12222f4f 2261 "Obsolete, Unsupported Fibre Channel Adapter"};
84774a4d
JS		 2262 break;
2263 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce 2264 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
12222f4f 2265 "Obsolete, Unsupported Fibre Channel Adapter"};
84774a4d 2266 break;
da0436e9
JS		 2267 case PCI_DEVICE_ID_TIGERSHARK:
2268 oneConnect = 1;
a747c9ce 2269 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 2270 break;
a747c9ce 2271 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 2272 oneConnect = 1;
a747c9ce
JS		 2273 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2274 break;
2275 case PCI_DEVICE_ID_FALCON:
2276 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2277 "EmulexSecure Fibre"};
6669f9bb 2278 break;
98fc5dd9
JS		 2279 case PCI_DEVICE_ID_BALIUS:
2280 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
12222f4f 2281 "Obsolete, Unsupported Fibre Channel Adapter"};
98fc5dd9 2282 break;
085c647c 2283 case PCI_DEVICE_ID_LANCER_FC:
c0c11512 2284 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c 2285 break;
12222f4f
JS		 2286 case PCI_DEVICE_ID_LANCER_FC_VF:
2287 m = (typeof(m)){"LPe16000", "PCIe",
2288 "Obsolete, Unsupported Fibre Channel Adapter"};
2289 break;
085c647c
JS		 2290 case PCI_DEVICE_ID_LANCER_FCOE:
2291 oneConnect = 1;
079b5c91 2292 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
085c647c 2293 break;
12222f4f
JS		 2294 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2295 oneConnect = 1;
2296 m = (typeof(m)){"OCe15100", "PCIe",
2297 "Obsolete, Unsupported FCoE"};
2298 break;
d38dd52c
JS		 2299 case PCI_DEVICE_ID_LANCER_G6_FC:
2300 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2301 break;
f8cafd38
JS		 2302 case PCI_DEVICE_ID_SKYHAWK:
2303 case PCI_DEVICE_ID_SKYHAWK_VF:
2304 oneConnect = 1;
2305 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2306 break;
5cc36b3c 2307 default:
a747c9ce 2308 m = (typeof(m)){"Unknown", "", ""};
e4adb204 2309 break;
dea3101e 2310 }
74b72a59
JW		 2311
2312 if (mdp && mdp[0] == '\0')
2313 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 2314 /*
2315 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 2316 * and we put the port number on the end
2317 */
2318 if (descp && descp[0] == '\0') {
2319 if (oneConnect)
2320 snprintf(descp, 255,
4169d868 2321 "Emulex OneConnect %s, %s Initiator %s",
a747c9ce 2322 m.name, m.function,
da0436e9 2323 phba->Port);
4169d868
JS		 2324 else if (max_speed == 0)
2325 snprintf(descp, 255,
290237d2 2326 "Emulex %s %s %s",
4169d868 2327 m.name, m.bus, m.function);
da0436e9
JS		 2328 else
2329 snprintf(descp, 255,
2330 "Emulex %s %d%s %s %s",
a747c9ce
JS		 2331 m.name, max_speed, (GE) ? "GE" : "Gb",
2332 m.bus, m.function);
da0436e9 2333 }
dea3101e 2334}
2335
e59058c4 2336/**
3621a710 2337 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 2338 * @phba: pointer to lpfc hba data structure.
2339 * @pring: pointer to a IOCB ring.
2340 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2341 *
2342 * This routine posts a given number of IOCBs with the associated DMA buffer
2343 * descriptors specified by the cnt argument to the given IOCB ring.
2344 *
2345 * Return codes
2346 * The number of IOCBs NOT able to be posted to the IOCB ring.
2347 **/
dea3101e 2348int
495a714c 2349lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2350{
2351 IOCB_t *icmd;
0bd4ca25 2352 struct lpfc_iocbq *iocb;
dea3101e 2353 struct lpfc_dmabuf *mp1, *mp2;
2354
2355 cnt += pring->missbufcnt;
2356
2357 /* While there are buffers to post */
2358 while (cnt > 0) {
2359 /* Allocate buffer for command iocb */
0bd4ca25 2360 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2361 if (iocb == NULL) {
2362 pring->missbufcnt = cnt;
2363 return cnt;
2364 }
dea3101e 2365 icmd = &iocb->iocb;
2366
2367 /* 2 buffers can be posted per command */
2368 /* Allocate buffer to post */
2369 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2370 if (mp1)
98c9ea5c
JS		 2371 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2372 if (!mp1 || !mp1->virt) {
c9475cb0 2373 kfree(mp1);
604a3e30 2374 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2375 pring->missbufcnt = cnt;
2376 return cnt;
2377 }
2378
2379 INIT_LIST_HEAD(&mp1->list);
2380 /* Allocate buffer to post */
2381 if (cnt > 1) {
2382 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2383 if (mp2)
2384 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2385 &mp2->phys);
98c9ea5c 2386 if (!mp2 || !mp2->virt) {
c9475cb0 2387 kfree(mp2);
dea3101e 2388 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2389 kfree(mp1);
604a3e30 2390 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2391 pring->missbufcnt = cnt;
2392 return cnt;
2393 }
2394
2395 INIT_LIST_HEAD(&mp2->list);
2396 } else {
2397 mp2 = NULL;
2398 }
2399
2400 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2401 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2402 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2403 icmd->ulpBdeCount = 1;
2404 cnt--;
2405 if (mp2) {
2406 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2407 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2408 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2409 cnt--;
2410 icmd->ulpBdeCount = 2;
2411 }
2412
2413 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2414 icmd->ulpLe = 1;
2415
3772a991
JS		 2416 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2417 IOCB_ERROR) {
dea3101e 2418 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2419 kfree(mp1);
2420 cnt++;
2421 if (mp2) {
2422 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2423 kfree(mp2);
2424 cnt++;
2425 }
604a3e30 2426 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2427 pring->missbufcnt = cnt;
dea3101e 2428 return cnt;
2429 }
dea3101e 2430 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2431 if (mp2)
dea3101e 2432 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2433 }
2434 pring->missbufcnt = 0;
2435 return 0;
2436}
2437
e59058c4 2438/**
3621a710 2439 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2440 * @phba: pointer to lpfc hba data structure.
2441 *
2442 * This routine posts initial receive IOCB buffers to the ELS ring. The
2443 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2444 * set to 64 IOCBs.
2445 *
2446 * Return codes
2447 * 0 - success (currently always success)
2448 **/
dea3101e 2449static int
2e0fef85 2450lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2451{
2452 struct lpfc_sli *psli = &phba->sli;
2453
2454 /* Ring 0, ELS / CT buffers */
495a714c 2455 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2456 /* Ring 2 - FCP no buffers needed */
2457
2458 return 0;
2459}
2460
2461#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2462
e59058c4 2463/**
3621a710 2464 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2465 * @HashResultPointer: pointer to an array as hash table.
2466 *
2467 * This routine sets up the initial values to the array of hash table entries
2468 * for the LC HBAs.
2469 **/
dea3101e 2470static void
2471lpfc_sha_init(uint32_t * HashResultPointer)
2472{
2473 HashResultPointer[0] = 0x67452301;
2474 HashResultPointer[1] = 0xEFCDAB89;
2475 HashResultPointer[2] = 0x98BADCFE;
2476 HashResultPointer[3] = 0x10325476;
2477 HashResultPointer[4] = 0xC3D2E1F0;
2478}
2479
e59058c4 2480/**
3621a710 2481 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2482 * @HashResultPointer: pointer to an initial/result hash table.
2483 * @HashWorkingPointer: pointer to an working hash table.
2484 *
2485 * This routine iterates an initial hash table pointed by @HashResultPointer
2486 * with the values from the working hash table pointeed by @HashWorkingPointer.
2487 * The results are putting back to the initial hash table, returned through
2488 * the @HashResultPointer as the result hash table.
2489 **/
dea3101e 2490static void
2491lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2492{
2493 int t;
2494 uint32_t TEMP;
2495 uint32_t A, B, C, D, E;
2496 t = 16;
2497 do {
2498 HashWorkingPointer[t] =
2499 S(1,
2500 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2501 8] ^
2502 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2503 } while (++t <= 79);
2504 t = 0;
2505 A = HashResultPointer[0];
2506 B = HashResultPointer[1];
2507 C = HashResultPointer[2];
2508 D = HashResultPointer[3];
2509 E = HashResultPointer[4];
2510
2511 do {
2512 if (t < 20) {
2513 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2514 } else if (t < 40) {
2515 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2516 } else if (t < 60) {
2517 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2518 } else {
2519 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2520 }
2521 TEMP += S(5, A) + E + HashWorkingPointer[t];
2522 E = D;
2523 D = C;
2524 C = S(30, B);
2525 B = A;
2526 A = TEMP;
2527 } while (++t <= 79);
2528
2529 HashResultPointer[0] += A;
2530 HashResultPointer[1] += B;
2531 HashResultPointer[2] += C;
2532 HashResultPointer[3] += D;
2533 HashResultPointer[4] += E;
2534
2535}
2536
e59058c4 2537/**
3621a710 2538 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2539 * @RandomChallenge: pointer to the entry of host challenge random number array.
2540 * @HashWorking: pointer to the entry of the working hash array.
2541 *
2542 * This routine calculates the working hash array referred by @HashWorking
2543 * from the challenge random numbers associated with the host, referred by
2544 * @RandomChallenge. The result is put into the entry of the working hash
2545 * array and returned by reference through @HashWorking.
2546 **/
dea3101e 2547static void
2548lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2549{
2550 *HashWorking = (*RandomChallenge ^ *HashWorking);
2551}
2552
e59058c4 2553/**
3621a710 2554 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2555 * @phba: pointer to lpfc hba data structure.
2556 * @hbainit: pointer to an array of unsigned 32-bit integers.
2557 *
2558 * This routine performs the special handling for LC HBA initialization.
2559 **/
dea3101e 2560void
2561lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2562{
2563 int t;
2564 uint32_t *HashWorking;
2e0fef85 2565 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2566
bbfbbbc1 2567 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2568 if (!HashWorking)
2569 return;
2570
dea3101e 2571 HashWorking[0] = HashWorking[78] = *pwwnn++;
2572 HashWorking[1] = HashWorking[79] = *pwwnn;
2573
2574 for (t = 0; t < 7; t++)
2575 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2576
2577 lpfc_sha_init(hbainit);
2578 lpfc_sha_iterate(hbainit, HashWorking);
2579 kfree(HashWorking);
2580}
2581
e59058c4 2582/**
3621a710 2583 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2584 * @vport: pointer to a virtual N_Port data structure.
2585 *
2586 * This routine performs the necessary cleanups before deleting the @vport.
2587 * It invokes the discovery state machine to perform necessary state
2588 * transitions and to release the ndlps associated with the @vport. Note,
2589 * the physical port is treated as @vport 0.
2590 **/
87af33fe 2591void
2e0fef85 2592lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2593{
87af33fe 2594 struct lpfc_hba *phba = vport->phba;
dea3101e 2595 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2596 int i = 0;
dea3101e 2597
87af33fe
JS		 2598 if (phba->link_state > LPFC_LINK_DOWN)
2599 lpfc_port_link_failure(vport);
2600
2601 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2602 if (!NLP_CHK_NODE_ACT(ndlp)) {
2603 ndlp = lpfc_enable_node(vport, ndlp,
2604 NLP_STE_UNUSED_NODE);
2605 if (!ndlp)
2606 continue;
2607 spin_lock_irq(&phba->ndlp_lock);
2608 NLP_SET_FREE_REQ(ndlp);
2609 spin_unlock_irq(&phba->ndlp_lock);
2610 /* Trigger the release of the ndlp memory */
2611 lpfc_nlp_put(ndlp);
2612 continue;
2613 }
2614 spin_lock_irq(&phba->ndlp_lock);
2615 if (NLP_CHK_FREE_REQ(ndlp)) {
2616 /* The ndlp should not be in memory free mode already */
2617 spin_unlock_irq(&phba->ndlp_lock);
2618 continue;
2619 } else
2620 /* Indicate request for freeing ndlp memory */
2621 NLP_SET_FREE_REQ(ndlp);
2622 spin_unlock_irq(&phba->ndlp_lock);
2623
58da1ffb
JS		 2624 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2625 ndlp->nlp_DID == Fabric_DID) {
2626 /* Just free up ndlp with Fabric_DID for vports */
2627 lpfc_nlp_put(ndlp);
2628 continue;
2629 }
2630
eff4a01b
JS		 2631 /* take care of nodes in unused state before the state
2632 * machine taking action.
2633 */
2634 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2635 lpfc_nlp_put(ndlp);
2636 continue;
2637 }
2638
87af33fe
JS		 2639 if (ndlp->nlp_type & NLP_FABRIC)
2640 lpfc_disc_state_machine(vport, ndlp, NULL,
2641 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2642
87af33fe
JS		 2643 lpfc_disc_state_machine(vport, ndlp, NULL,
2644 NLP_EVT_DEVICE_RM);
2645 }
2646
a8adb832
JS		 2647 /* At this point, ALL ndlp's should be gone
2648 * because of the previous NLP_EVT_DEVICE_RM.
2649 * Lets wait for this to happen, if needed.
2650 */
87af33fe 2651 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2652 if (i++ > 3000) {
87af33fe 2653 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2654 "0233 Nodelist not empty\n");
e47c9093
JS		 2655 list_for_each_entry_safe(ndlp, next_ndlp,
2656 &vport->fc_nodes, nlp_listp) {
2657 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2658 LOG_NODE,
d7c255b2 2659 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2660 "usgmap:x%x refcnt:%d\n",
2661 ndlp->nlp_DID, (void *)ndlp,
2662 ndlp->nlp_usg_map,
2663 atomic_read(
2664 &ndlp->kref.refcount));
2665 }
a8adb832 2666 break;
87af33fe 2667 }
a8adb832
JS		 2668
2669 /* Wait for any activity on ndlps to settle */
2670 msleep(10);
87af33fe 2671 }
1151e3ec 2672 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2673}
2674
e59058c4 2675/**
3621a710 2676 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2677 * @vport: pointer to a virtual N_Port data structure.
2678 *
2679 * This routine stops all the timers associated with a @vport. This function
2680 * is invoked before disabling or deleting a @vport. Note that the physical
2681 * port is treated as @vport 0.
2682 **/
92d7f7b0
JS		 2683void
2684lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2685{
92d7f7b0 2686 del_timer_sync(&vport->els_tmofunc);
92494144 2687 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2688 lpfc_can_disctmo(vport);
2689 return;
dea3101e 2690}
2691
ecfd03c6
JS		 2692/**
2693 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2694 * @phba: pointer to lpfc hba data structure.
2695 *
2696 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2697 * caller of this routine should already hold the host lock.
2698 **/
2699void
2700__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2701{
5ac6b303
JS		 2702 /* Clear pending FCF rediscovery wait flag */
2703 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2704
ecfd03c6
JS		 2705 /* Now, try to stop the timer */
2706 del_timer(&phba->fcf.redisc_wait);
2707}
2708
2709/**
2710 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2711 * @phba: pointer to lpfc hba data structure.
2712 *
2713 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2714 * checks whether the FCF rediscovery wait timer is pending with the host
2715 * lock held before proceeding with disabling the timer and clearing the
2716 * wait timer pendig flag.
2717 **/
2718void
2719lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2720{
2721 spin_lock_irq(&phba->hbalock);
2722 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2723 /* FCF rediscovery timer already fired or stopped */
2724 spin_unlock_irq(&phba->hbalock);
2725 return;
2726 }
2727 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2728 /* Clear failover in progress flags */
2729 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2730 spin_unlock_irq(&phba->hbalock);
2731}
2732
e59058c4 2733/**
3772a991 2734 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2735 * @phba: pointer to lpfc hba data structure.
2736 *
2737 * This routine stops all the timers associated with a HBA. This function is
2738 * invoked before either putting a HBA offline or unloading the driver.
2739 **/
3772a991
JS		 2740void
2741lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2742{
51ef4c26 2743 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2744 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2745 del_timer_sync(&phba->fabric_block_timer);
9399627f 2746 del_timer_sync(&phba->eratt_poll);
3772a991 2747 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2748 if (phba->sli_rev == LPFC_SLI_REV4) {
2749 del_timer_sync(&phba->rrq_tmr);
2750 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2751 }
3772a991
JS		 2752 phba->hb_outstanding = 0;
2753
2754 switch (phba->pci_dev_grp) {
2755 case LPFC_PCI_DEV_LP:
2756 /* Stop any LightPulse device specific driver timers */
2757 del_timer_sync(&phba->fcp_poll_timer);
2758 break;
2759 case LPFC_PCI_DEV_OC:
2760 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2761 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2762 break;
2763 default:
2764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2765 "0297 Invalid device group (x%x)\n",
2766 phba->pci_dev_grp);
2767 break;
2768 }
2e0fef85 2769 return;
dea3101e 2770}
2771
e59058c4 2772/**
3621a710 2773 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2774 * @phba: pointer to lpfc hba data structure.
2775 *
2776 * This routine marks a HBA's management interface as blocked. Once the HBA's
2777 * management interface is marked as blocked, all the user space access to
2778 * the HBA, whether they are from sysfs interface or libdfc interface will
2779 * all be blocked. The HBA is set to block the management interface when the
2780 * driver prepares the HBA interface for online or offline.
2781 **/
a6ababd2 2782static void
618a5230 2783lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
a6ababd2
AB		 2784{
2785 unsigned long iflag;
6e7288d9
JS		 2786 uint8_t actcmd = MBX_HEARTBEAT;
2787 unsigned long timeout;
2788
a6ababd2
AB		 2789 spin_lock_irqsave(&phba->hbalock, iflag);
2790 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
618a5230
JS		 2791 spin_unlock_irqrestore(&phba->hbalock, iflag);
2792 if (mbx_action == LPFC_MBX_NO_WAIT)
2793 return;
2794 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2795 spin_lock_irqsave(&phba->hbalock, iflag);
a183a15f 2796 if (phba->sli.mbox_active) {
6e7288d9 2797 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a183a15f
JS		 2798 /* Determine how long we might wait for the active mailbox
2799 * command to be gracefully completed by firmware.
2800 */
2801 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2802 phba->sli.mbox_active) * 1000) + jiffies;
2803 }
a6ababd2 2804 spin_unlock_irqrestore(&phba->hbalock, iflag);
a183a15f 2805
6e7288d9
JS		 2806 /* Wait for the outstnading mailbox command to complete */
2807 while (phba->sli.mbox_active) {
2808 /* Check active mailbox complete status every 2ms */
2809 msleep(2);
2810 if (time_after(jiffies, timeout)) {
2811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2812 "2813 Mgmt IO is Blocked %x "
2813 "- mbox cmd %x still active\n",
2814 phba->sli.sli_flag, actcmd);
2815 break;
2816 }
2817 }
a6ababd2
AB		 2818}
2819
6b5151fd
JS		 2820/**
2821 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2822 * @phba: pointer to lpfc hba data structure.
2823 *
2824 * Allocate RPIs for all active remote nodes. This is needed whenever
2825 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2826 * is to fixup the temporary rpi assignments.
2827 **/
2828void
2829lpfc_sli4_node_prep(struct lpfc_hba *phba)
2830{
2831 struct lpfc_nodelist *ndlp, *next_ndlp;
2832 struct lpfc_vport **vports;
2833 int i;
2834
2835 if (phba->sli_rev != LPFC_SLI_REV4)
2836 return;
2837
2838 vports = lpfc_create_vport_work_array(phba);
2839 if (vports != NULL) {
2840 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2841 if (vports[i]->load_flag & FC_UNLOADING)
2842 continue;
2843
2844 list_for_each_entry_safe(ndlp, next_ndlp,
2845 &vports[i]->fc_nodes,
2846 nlp_listp) {
be6bb941 2847 if (NLP_CHK_NODE_ACT(ndlp)) {
6b5151fd
JS		 2848 ndlp->nlp_rpi =
2849 lpfc_sli4_alloc_rpi(phba);
be6bb941
JS		 2850 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2851 LOG_NODE,
2852 "0009 rpi:%x DID:%x "
2853 "flg:%x map:%x %p\n",
2854 ndlp->nlp_rpi,
2855 ndlp->nlp_DID,
2856 ndlp->nlp_flag,
2857 ndlp->nlp_usg_map,
2858 ndlp);
2859 }
6b5151fd
JS		 2860 }
2861 }
2862 }
2863 lpfc_destroy_vport_work_array(phba, vports);
2864}
2865
e59058c4 2866/**
3621a710 2867 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2868 * @phba: pointer to lpfc hba data structure.
2869 *
2870 * This routine initializes the HBA and brings a HBA online. During this
2871 * process, the management interface is blocked to prevent user space access
2872 * to the HBA interfering with the driver initialization.
2873 *
2874 * Return codes
2875 * 0 - successful
2876 * 1 - failed
2877 **/
dea3101e 2878int
2e0fef85 2879lpfc_online(struct lpfc_hba *phba)
dea3101e 2880{
372bd282 2881 struct lpfc_vport *vport;
549e55cd
JS		 2882 struct lpfc_vport **vports;
2883 int i;
16a3a208 2884 bool vpis_cleared = false;
2e0fef85 2885
dea3101e 2886 if (!phba)
2887 return 0;
372bd282 2888 vport = phba->pport;
dea3101e 2889
2e0fef85 2890 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2891 return 0;
2892
ed957684 2893 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2894 "0458 Bring Adapter online\n");
dea3101e 2895
618a5230 2896 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
46fa311e
JS		 2897
2898 if (!lpfc_sli_queue_setup(phba)) {
2899 lpfc_unblock_mgmt_io(phba);
dea3101e 2900 return 1;
46fa311e 2901 }
dea3101e 2902
da0436e9
JS		 2903 if (phba->sli_rev == LPFC_SLI_REV4) {
2904 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2905 lpfc_unblock_mgmt_io(phba);
2906 return 1;
2907 }
16a3a208
JS		 2908 spin_lock_irq(&phba->hbalock);
2909 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2910 vpis_cleared = true;
2911 spin_unlock_irq(&phba->hbalock);
da0436e9
JS		 2912 } else {
2913 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2914 lpfc_unblock_mgmt_io(phba);
2915 return 1;
2916 }
46fa311e 2917 }
dea3101e 2918
549e55cd 2919 vports = lpfc_create_vport_work_array(phba);
aeb6641f 2920 if (vports != NULL) {
da0436e9 2921 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2922 struct Scsi_Host *shost;
2923 shost = lpfc_shost_from_vport(vports[i]);
2924 spin_lock_irq(shost->host_lock);
2925 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2926 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2927 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
16a3a208 2928 if (phba->sli_rev == LPFC_SLI_REV4) {
1c6834a7 2929 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
16a3a208
JS		 2930 if ((vpis_cleared) &&
2931 (vports[i]->port_type !=
2932 LPFC_PHYSICAL_PORT))
2933 vports[i]->vpi = 0;
2934 }
549e55cd
JS		 2935 spin_unlock_irq(shost->host_lock);
2936 }
aeb6641f
AB		 2937 }
2938 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2939
46fa311e 2940 lpfc_unblock_mgmt_io(phba);
dea3101e 2941 return 0;
2942}
2943
e59058c4 2944/**
3621a710 2945 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2946 * @phba: pointer to lpfc hba data structure.
2947 *
2948 * This routine marks a HBA's management interface as not blocked. Once the
2949 * HBA's management interface is marked as not blocked, all the user space
2950 * access to the HBA, whether they are from sysfs interface or libdfc
2951 * interface will be allowed. The HBA is set to block the management interface
2952 * when the driver prepares the HBA interface for online or offline and then
2953 * set to unblock the management interface afterwards.
2954 **/
46fa311e
JS		 2955void
2956lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2957{
2958 unsigned long iflag;
2959
2e0fef85
JS		 2960 spin_lock_irqsave(&phba->hbalock, iflag);
2961 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2962 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2963}
2964
e59058c4 2965/**
3621a710 2966 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2967 * @phba: pointer to lpfc hba data structure.
2968 *
2969 * This routine is invoked to prepare a HBA to be brought offline. It performs
2970 * unregistration login to all the nodes on all vports and flushes the mailbox
2971 * queue to make it ready to be brought offline.
2972 **/
46fa311e 2973void
618a5230 2974lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
46fa311e 2975{
2e0fef85 2976 struct lpfc_vport *vport = phba->pport;
46fa311e 2977 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2978 struct lpfc_vport **vports;
72100cc4 2979 struct Scsi_Host *shost;
87af33fe 2980 int i;
dea3101e 2981
2e0fef85 2982 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2983 return;
dea3101e 2984
618a5230 2985 lpfc_block_mgmt_io(phba, mbx_action);
dea3101e 2986
2987 lpfc_linkdown(phba);
2988
87af33fe
JS		 2989 /* Issue an unreg_login to all nodes on all vports */
2990 vports = lpfc_create_vport_work_array(phba);
2991 if (vports != NULL) {
da0436e9 2992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2993 if (vports[i]->load_flag & FC_UNLOADING)
2994 continue;
72100cc4
JS		 2995 shost = lpfc_shost_from_vport(vports[i]);
2996 spin_lock_irq(shost->host_lock);
c868595d 2997 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2998 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2999 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 3000 spin_unlock_irq(shost->host_lock);
695a814e 3001
87af33fe
JS		 3002 shost = lpfc_shost_from_vport(vports[i]);
3003 list_for_each_entry_safe(ndlp, next_ndlp,
3004 &vports[i]->fc_nodes,
3005 nlp_listp) {
e47c9093
JS		 3006 if (!NLP_CHK_NODE_ACT(ndlp))
3007 continue;
87af33fe
JS		 3008 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3009 continue;
3010 if (ndlp->nlp_type & NLP_FABRIC) {
3011 lpfc_disc_state_machine(vports[i], ndlp,
3012 NULL, NLP_EVT_DEVICE_RECOVERY);
3013 lpfc_disc_state_machine(vports[i], ndlp,
3014 NULL, NLP_EVT_DEVICE_RM);
3015 }
3016 spin_lock_irq(shost->host_lock);
3017 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
401ee0c1 3018 spin_unlock_irq(shost->host_lock);
6b5151fd
JS		 3019 /*
3020 * Whenever an SLI4 port goes offline, free the
401ee0c1
JS		 3021 * RPI. Get a new RPI when the adapter port
3022 * comes back online.
6b5151fd 3023 */
be6bb941
JS		 3024 if (phba->sli_rev == LPFC_SLI_REV4) {
3025 lpfc_printf_vlog(ndlp->vport,
3026 KERN_INFO, LOG_NODE,
3027 "0011 lpfc_offline: "
3028 "ndlp:x%p did %x "
3029 "usgmap:x%x rpi:%x\n",
3030 ndlp, ndlp->nlp_DID,
3031 ndlp->nlp_usg_map,
3032 ndlp->nlp_rpi);
3033
6b5151fd 3034 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
be6bb941 3035 }
87af33fe
JS		 3036 lpfc_unreg_rpi(vports[i], ndlp);
3037 }
3038 }
3039 }
09372820 3040 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 3041
618a5230 3042 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
46fa311e
JS		 3043}
3044
e59058c4 3045/**
3621a710 3046 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 3047 * @phba: pointer to lpfc hba data structure.
3048 *
3049 * This routine actually brings a HBA offline. It stops all the timers
3050 * associated with the HBA, brings down the SLI layer, and eventually
3051 * marks the HBA as in offline state for the upper layer protocol.
3052 **/
46fa311e 3053void
2e0fef85 3054lpfc_offline(struct lpfc_hba *phba)
46fa311e 3055{
549e55cd
JS		 3056 struct Scsi_Host *shost;
3057 struct lpfc_vport **vports;
3058 int i;
46fa311e 3059
549e55cd 3060 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 3061 return;
688a8863 3062
da0436e9
JS		 3063 /* stop port and all timers associated with this hba */
3064 lpfc_stop_port(phba);
51ef4c26
JS		 3065 vports = lpfc_create_vport_work_array(phba);
3066 if (vports != NULL)
da0436e9 3067 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 3068 lpfc_stop_vport_timers(vports[i]);
09372820 3069 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 3070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 3071 "0460 Bring Adapter offline\n");
dea3101e 3072 /* Bring down the SLI Layer and cleanup. The HBA is offline
3073 now. */
3074 lpfc_sli_hba_down(phba);
92d7f7b0 3075 spin_lock_irq(&phba->hbalock);
7054a606 3076 phba->work_ha = 0;
92d7f7b0 3077 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 3078 vports = lpfc_create_vport_work_array(phba);
3079 if (vports != NULL)
da0436e9 3080 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 3081 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 3082 spin_lock_irq(shost->host_lock);
3083 vports[i]->work_port_events = 0;
3084 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3085 spin_unlock_irq(shost->host_lock);
3086 }
09372820 3087 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 3088}
3089
e59058c4 3090/**
3621a710 3091 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 3092 * @phba: pointer to lpfc hba data structure.
3093 *
3094 * This routine is to free all the SCSI buffers and IOCBs from the driver
3095 * list back to kernel. It is called from lpfc_pci_remove_one to free
3096 * the internal resources before the device is removed from the system.
e59058c4 3097 **/
8a9d2e80 3098static void
2e0fef85 3099lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 3100{
3101 struct lpfc_scsi_buf *sb, *sb_next;
3102 struct lpfc_iocbq *io, *io_next;
3103
2e0fef85 3104 spin_lock_irq(&phba->hbalock);
a40fc5f0 3105
dea3101e 3106 /* Release all the lpfc_scsi_bufs maintained by this host. */
a40fc5f0
JS		 3107
3108 spin_lock(&phba->scsi_buf_list_put_lock);
3109 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3110 list) {
dea3101e 3111 list_del(&sb->list);
3112 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 3113 sb->dma_handle);
dea3101e 3114 kfree(sb);
3115 phba->total_scsi_bufs--;
3116 }
a40fc5f0
JS		 3117 spin_unlock(&phba->scsi_buf_list_put_lock);
3118
3119 spin_lock(&phba->scsi_buf_list_get_lock);
3120 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3121 list) {
dea3101e 3122 list_del(&sb->list);
3123 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 3124 sb->dma_handle);
dea3101e 3125 kfree(sb);
3126 phba->total_scsi_bufs--;
3127 }
a40fc5f0 3128 spin_unlock(&phba->scsi_buf_list_get_lock);
dea3101e 3129
3130 /* Release all the lpfc_iocbq entries maintained by this host. */
3131 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3132 list_del(&io->list);
3133 kfree(io);
3134 phba->total_iocbq_bufs--;
3135 }
6d368e53 3136
2e0fef85 3137 spin_unlock_irq(&phba->hbalock);
8a9d2e80
JS		 3138}
3139
3140/**
3141 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3142 * @phba: pointer to lpfc hba data structure.
3143 *
3144 * This routine first calculates the sizes of the current els and allocated
3145 * scsi sgl lists, and then goes through all sgls to updates the physical
3146 * XRIs assigned due to port function reset. During port initialization, the
3147 * current els and allocated scsi sgl lists are 0s.
3148 *
3149 * Return codes
3150 * 0 - successful (for now, it always returns 0)
3151 **/
3152int
3153lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3154{
3155 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3156 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3157 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3158 LIST_HEAD(els_sgl_list);
3159 LIST_HEAD(scsi_sgl_list);
3160 int rc;
dafe8cea 3161 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8a9d2e80
JS		 3162
3163 /*
3164 * update on pci function's els xri-sgl list
3165 */
3166 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3167 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3168 /* els xri-sgl expanded */
3169 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3171 "3157 ELS xri-sgl count increased from "
3172 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3173 els_xri_cnt);
3174 /* allocate the additional els sgls */
3175 for (i = 0; i < xri_cnt; i++) {
3176 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3177 GFP_KERNEL);
3178 if (sglq_entry == NULL) {
3179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3180 "2562 Failure to allocate an "
3181 "ELS sgl entry:%d\n", i);
3182 rc = -ENOMEM;
3183 goto out_free_mem;
3184 }
3185 sglq_entry->buff_type = GEN_BUFF_TYPE;
3186 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3187 &sglq_entry->phys);
3188 if (sglq_entry->virt == NULL) {
3189 kfree(sglq_entry);
3190 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3191 "2563 Failure to allocate an "
3192 "ELS mbuf:%d\n", i);
3193 rc = -ENOMEM;
3194 goto out_free_mem;
3195 }
3196 sglq_entry->sgl = sglq_entry->virt;
3197 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3198 sglq_entry->state = SGL_FREED;
3199 list_add_tail(&sglq_entry->list, &els_sgl_list);
3200 }
38c20673 3201 spin_lock_irq(&phba->hbalock);
dafe8cea 3202 spin_lock(&pring->ring_lock);
8a9d2e80 3203 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
dafe8cea 3204 spin_unlock(&pring->ring_lock);
38c20673 3205 spin_unlock_irq(&phba->hbalock);
8a9d2e80
JS		 3206 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3207 /* els xri-sgl shrinked */
3208 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3209 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3210 "3158 ELS xri-sgl count decreased from "
3211 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3212 els_xri_cnt);
3213 spin_lock_irq(&phba->hbalock);
dafe8cea 3214 spin_lock(&pring->ring_lock);
8a9d2e80 3215 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
dafe8cea 3216 spin_unlock(&pring->ring_lock);
8a9d2e80
JS		 3217 spin_unlock_irq(&phba->hbalock);
3218 /* release extra els sgls from list */
3219 for (i = 0; i < xri_cnt; i++) {
3220 list_remove_head(&els_sgl_list,
3221 sglq_entry, struct lpfc_sglq, list);
3222 if (sglq_entry) {
3223 lpfc_mbuf_free(phba, sglq_entry->virt,
3224 sglq_entry->phys);
3225 kfree(sglq_entry);
3226 }
3227 }
3228 spin_lock_irq(&phba->hbalock);
dafe8cea 3229 spin_lock(&pring->ring_lock);
8a9d2e80 3230 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
dafe8cea 3231 spin_unlock(&pring->ring_lock);
8a9d2e80
JS		 3232 spin_unlock_irq(&phba->hbalock);
3233 } else
3234 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3235 "3163 ELS xri-sgl count unchanged: %d\n",
3236 els_xri_cnt);
3237 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3238
3239 /* update xris to els sgls on the list */
3240 sglq_entry = NULL;
3241 sglq_entry_next = NULL;
3242 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3243 &phba->sli4_hba.lpfc_sgl_list, list) {
3244 lxri = lpfc_sli4_next_xritag(phba);
3245 if (lxri == NO_XRI) {
3246 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3247 "2400 Failed to allocate xri for "
3248 "ELS sgl\n");
3249 rc = -ENOMEM;
3250 goto out_free_mem;
3251 }
3252 sglq_entry->sli4_lxritag = lxri;
3253 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3254 }
3255
3256 /*
3257 * update on pci function's allocated scsi xri-sgl list
3258 */
3259 phba->total_scsi_bufs = 0;
3260
3261 /* maximum number of xris available for scsi buffers */
3262 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3263 els_xri_cnt;
3264
3265 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3266 "2401 Current allocated SCSI xri-sgl count:%d, "
3267 "maximum SCSI xri count:%d\n",
3268 phba->sli4_hba.scsi_xri_cnt,
3269 phba->sli4_hba.scsi_xri_max);
3270
a40fc5f0 3271 spin_lock_irq(&phba->scsi_buf_list_get_lock);
164cecd1 3272 spin_lock(&phba->scsi_buf_list_put_lock);
a40fc5f0
JS		 3273 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3274 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
164cecd1 3275 spin_unlock(&phba->scsi_buf_list_put_lock);
a40fc5f0 3276 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80
JS		 3277
3278 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3279 /* max scsi xri shrinked below the allocated scsi buffers */
3280 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3281 phba->sli4_hba.scsi_xri_max;
3282 /* release the extra allocated scsi buffers */
3283 for (i = 0; i < scsi_xri_cnt; i++) {
3284 list_remove_head(&scsi_sgl_list, psb,
3285 struct lpfc_scsi_buf, list);
a2fc4aef
JS		 3286 if (psb) {
3287 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3288 psb->data, psb->dma_handle);
3289 kfree(psb);
3290 }
8a9d2e80 3291 }
a40fc5f0 3292 spin_lock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80 3293 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
a40fc5f0 3294 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80
JS		 3295 }
3296
3297 /* update xris associated to remaining allocated scsi buffers */
3298 psb = NULL;
3299 psb_next = NULL;
3300 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3301 lxri = lpfc_sli4_next_xritag(phba);
3302 if (lxri == NO_XRI) {
3303 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3304 "2560 Failed to allocate xri for "
3305 "scsi buffer\n");
3306 rc = -ENOMEM;
3307 goto out_free_mem;
3308 }
3309 psb->cur_iocbq.sli4_lxritag = lxri;
3310 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3311 }
a40fc5f0 3312 spin_lock_irq(&phba->scsi_buf_list_get_lock);
164cecd1 3313 spin_lock(&phba->scsi_buf_list_put_lock);
a40fc5f0
JS		 3314 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3315 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
164cecd1 3316 spin_unlock(&phba->scsi_buf_list_put_lock);
a40fc5f0 3317 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80 3318
dea3101e 3319 return 0;
8a9d2e80
JS		 3320
3321out_free_mem:
3322 lpfc_free_els_sgl_list(phba);
3323 lpfc_scsi_free(phba);
3324 return rc;
dea3101e 3325}
3326
e59058c4 3327/**
3621a710 3328 * lpfc_create_port - Create an FC port
e59058c4
JS		 3329 * @phba: pointer to lpfc hba data structure.
3330 * @instance: a unique integer ID to this FC port.
3331 * @dev: pointer to the device data structure.
3332 *
3333 * This routine creates a FC port for the upper layer protocol. The FC port
3334 * can be created on top of either a physical port or a virtual port provided
3335 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3336 * and associates the FC port created before adding the shost into the SCSI
3337 * layer.
3338 *
3339 * Return codes
3340 * @vport - pointer to the virtual N_Port data structure.
3341 * NULL - port create failed.
3342 **/
2e0fef85 3343struct lpfc_vport *
3de2a653 3344lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 3345{
2e0fef85
JS		 3346 struct lpfc_vport *vport;
3347 struct Scsi_Host *shost;
3348 int error = 0;
47a8617c 3349
ea4142f6 3350 if (dev != &phba->pcidev->dev) {
3de2a653
JS		 3351 shost = scsi_host_alloc(&lpfc_vport_template,
3352 sizeof(struct lpfc_vport));
ea4142f6
JS		 3353 } else {
3354 if (phba->sli_rev == LPFC_SLI_REV4)
3355 shost = scsi_host_alloc(&lpfc_template,
3de2a653 3356 sizeof(struct lpfc_vport));
ea4142f6
JS		 3357 else
3358 shost = scsi_host_alloc(&lpfc_template_s3,
3359 sizeof(struct lpfc_vport));
3360 }
2e0fef85
JS		 3361 if (!shost)
3362 goto out;
47a8617c 3363
2e0fef85
JS		 3364 vport = (struct lpfc_vport *) shost->hostdata;
3365 vport->phba = phba;
2e0fef85 3366 vport->load_flag |= FC_LOADING;
92d7f7b0 3367 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 3368 vport->fc_rscn_flush = 0;
47a8617c 3369
3de2a653 3370 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 3371 shost->unique_id = instance;
3372 shost->max_id = LPFC_MAX_TARGET;
3de2a653 3373 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 3374 shost->this_id = -1;
3375 shost->max_cmd_len = 16;
8b0dff14 3376 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
da0436e9 3377 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 3378 shost->dma_boundary =
cb5172ea 3379 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 3380 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3381 }
81301a9b 3382
47a8617c 3383 /*
2e0fef85
JS		 3384 * Set initial can_queue value since 0 is no longer supported and
3385 * scsi_add_host will fail. This will be adjusted later based on the
3386 * max xri value determined in hba setup.
47a8617c 3387 */
2e0fef85 3388 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 3389 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 3390 shost->transportt = lpfc_vport_transport_template;
3391 vport->port_type = LPFC_NPIV_PORT;
3392 } else {
3393 shost->transportt = lpfc_transport_template;
3394 vport->port_type = LPFC_PHYSICAL_PORT;
3395 }
47a8617c 3396
2e0fef85
JS		 3397 /* Initialize all internally managed lists. */
3398 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 3399 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 3400 spin_lock_init(&vport->work_port_lock);
47a8617c 3401
2e0fef85
JS		 3402 init_timer(&vport->fc_disctmo);
3403 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 3404 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 3405
2e0fef85
JS		 3406 init_timer(&vport->els_tmofunc);
3407 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 3408 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 3409
3410 init_timer(&vport->delayed_disc_tmo);
3411 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3412 vport->delayed_disc_tmo.data = (unsigned long)vport;
3413
d139b9bd 3414 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 3415 if (error)
3416 goto out_put_shost;
47a8617c 3417
549e55cd 3418 spin_lock_irq(&phba->hbalock);
2e0fef85 3419 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 3420 spin_unlock_irq(&phba->hbalock);
2e0fef85 3421 return vport;
47a8617c 3422
2e0fef85
JS		 3423out_put_shost:
3424 scsi_host_put(shost);
3425out:
3426 return NULL;
47a8617c
JS		 3427}
3428
e59058c4 3429/**
3621a710 3430 * destroy_port - destroy an FC port
e59058c4
JS		 3431 * @vport: pointer to an lpfc virtual N_Port data structure.
3432 *
3433 * This routine destroys a FC port from the upper layer protocol. All the
3434 * resources associated with the port are released.
3435 **/
2e0fef85
JS		 3436void
3437destroy_port(struct lpfc_vport *vport)
47a8617c 3438{
92d7f7b0
JS		 3439 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3440 struct lpfc_hba *phba = vport->phba;
47a8617c 3441
858c9f6c 3442 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 3443 fc_remove_host(shost);
3444 scsi_remove_host(shost);
47a8617c 3445
92d7f7b0
JS		 3446 spin_lock_irq(&phba->hbalock);
3447 list_del_init(&vport->listentry);
3448 spin_unlock_irq(&phba->hbalock);
47a8617c 3449
92d7f7b0 3450 lpfc_cleanup(vport);
47a8617c 3451 return;
47a8617c
JS		 3452}
3453
e59058c4 3454/**
3621a710 3455 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 3456 *
3457 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3458 * uses the kernel idr facility to perform the task.
3459 *
3460 * Return codes:
3461 * instance - a unique integer ID allocated as the new instance.
3462 * -1 - lpfc get instance failed.
3463 **/
92d7f7b0
JS		 3464int
3465lpfc_get_instance(void)
3466{
ab516036
TH		 3467 int ret;
3468
3469 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3470 return ret < 0 ? -1 : ret;
47a8617c
JS		 3471}
3472
e59058c4 3473/**
3621a710 3474 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 3475 * @shost: pointer to SCSI host data structure.
3476 * @time: elapsed time of the scan in jiffies.
3477 *
3478 * This routine is called by the SCSI layer with a SCSI host to determine
3479 * whether the scan host is finished.
3480 *
3481 * Note: there is no scan_start function as adapter initialization will have
3482 * asynchronously kicked off the link initialization.
3483 *
3484 * Return codes
3485 * 0 - SCSI host scan is not over yet.
3486 * 1 - SCSI host scan is over.
3487 **/
47a8617c
JS		 3488int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3489{
2e0fef85
JS		 3490 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3491 struct lpfc_hba *phba = vport->phba;
858c9f6c 3492 int stat = 0;
47a8617c 3493
858c9f6c
JS		 3494 spin_lock_irq(shost->host_lock);
3495
51ef4c26 3496 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 3497 stat = 1;
3498 goto finished;
3499 }
256ec0d0 3500 if (time >= msecs_to_jiffies(30 * 1000)) {
2e0fef85 3501 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3502 "0461 Scanning longer than 30 "
3503 "seconds. Continuing initialization\n");
858c9f6c 3504 stat = 1;
47a8617c 3505 goto finished;
2e0fef85 3506 }
256ec0d0
JS		 3507 if (time >= msecs_to_jiffies(15 * 1000) &&
3508 phba->link_state <= LPFC_LINK_DOWN) {
2e0fef85 3509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3510 "0465 Link down longer than 15 "
3511 "seconds. Continuing initialization\n");
858c9f6c 3512 stat = 1;
47a8617c 3513 goto finished;
2e0fef85 3514 }
47a8617c 3515
2e0fef85 3516 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 3517 goto finished;
2e0fef85 3518 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 3519 goto finished;
256ec0d0 3520 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
858c9f6c 3521 goto finished;
2e0fef85 3522 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 3523 goto finished;
3524
3525 stat = 1;
47a8617c
JS		 3526
3527finished:
858c9f6c
JS		 3528 spin_unlock_irq(shost->host_lock);
3529 return stat;
92d7f7b0 3530}
47a8617c 3531
e59058c4 3532/**
3621a710 3533 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 3534 * @shost: pointer to SCSI host data structure.
3535 *
3536 * This routine initializes a given SCSI host attributes on a FC port. The
3537 * SCSI host can be either on top of a physical port or a virtual port.
3538 **/
92d7f7b0
JS		 3539void lpfc_host_attrib_init(struct Scsi_Host *shost)
3540{
3541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3542 struct lpfc_hba *phba = vport->phba;
47a8617c 3543 /*
2e0fef85 3544 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 3545 */
3546
2e0fef85
JS		 3547 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3548 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 3549 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3550
3551 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 3552 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 3553 fc_host_supported_fc4s(shost)[2] = 1;
3554 fc_host_supported_fc4s(shost)[7] = 1;
3555
92d7f7b0
JS		 3556 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3557 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 3558
3559 fc_host_supported_speeds(shost) = 0;
d38dd52c
JS		 3560 if (phba->lmt & LMT_32Gb)
3561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
88a2cfbb
JS		 3562 if (phba->lmt & LMT_16Gb)
3563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 3564 if (phba->lmt & LMT_10Gb)
3565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 3566 if (phba->lmt & LMT_8Gb)
3567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 3568 if (phba->lmt & LMT_4Gb)
3569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3570 if (phba->lmt & LMT_2Gb)
3571 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3572 if (phba->lmt & LMT_1Gb)
3573 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3574
3575 fc_host_maxframe_size(shost) =
2e0fef85
JS		 3576 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3577 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 3578
0af5d708
MC		 3579 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3580
47a8617c
JS		 3581 /* This value is also unchanging */
3582 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 3583 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 3584 fc_host_active_fc4s(shost)[2] = 1;
3585 fc_host_active_fc4s(shost)[7] = 1;
3586
92d7f7b0 3587 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 3588 spin_lock_irq(shost->host_lock);
51ef4c26 3589 vport->load_flag &= ~FC_LOADING;
47a8617c 3590 spin_unlock_irq(shost->host_lock);
47a8617c 3591}
dea3101e 3592
e59058c4 3593/**
da0436e9 3594 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 3595 * @phba: pointer to lpfc hba data structure.
3596 *
da0436e9
JS		 3597 * This routine is invoked to stop an SLI3 device port, it stops the device
3598 * from generating interrupts and stops the device driver's timers for the
3599 * device.
e59058c4 3600 **/
da0436e9
JS		 3601static void
3602lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 3603{
da0436e9
JS		 3604 /* Clear all interrupt enable conditions */
3605 writel(0, phba->HCregaddr);
3606 readl(phba->HCregaddr); /* flush */
3607 /* Clear all pending interrupts */
3608 writel(0xffffffff, phba->HAregaddr);
3609 readl(phba->HAregaddr); /* flush */
db2378e0 3610
da0436e9
JS		 3611 /* Reset some HBA SLI setup states */
3612 lpfc_stop_hba_timers(phba);
3613 phba->pport->work_port_events = 0;
3614}
db2378e0 3615
da0436e9
JS		 3616/**
3617 * lpfc_stop_port_s4 - Stop SLI4 device port
3618 * @phba: pointer to lpfc hba data structure.
3619 *
3620 * This routine is invoked to stop an SLI4 device port, it stops the device
3621 * from generating interrupts and stops the device driver's timers for the
3622 * device.
3623 **/
3624static void
3625lpfc_stop_port_s4(struct lpfc_hba *phba)
3626{
3627 /* Reset some HBA SLI4 setup states */
3628 lpfc_stop_hba_timers(phba);
3629 phba->pport->work_port_events = 0;
3630 phba->sli4_hba.intr_enable = 0;
da0436e9 3631}
9399627f 3632
da0436e9
JS		 3633/**
3634 * lpfc_stop_port - Wrapper function for stopping hba port
3635 * @phba: Pointer to HBA context object.
3636 *
3637 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3638 * the API jump table function pointer from the lpfc_hba struct.
3639 **/
3640void
3641lpfc_stop_port(struct lpfc_hba *phba)
3642{
3643 phba->lpfc_stop_port(phba);
3644}
db2378e0 3645
ecfd03c6
JS		 3646/**
3647 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3648 * @phba: Pointer to hba for which this call is being executed.
3649 *
3650 * This routine starts the timer waiting for the FCF rediscovery to complete.
3651 **/
3652void
3653lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3654{
3655 unsigned long fcf_redisc_wait_tmo =
3656 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3657 /* Start fcf rediscovery wait period timer */
3658 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3659 spin_lock_irq(&phba->hbalock);
3660 /* Allow action to new fcf asynchronous event */
3661 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3662 /* Mark the FCF rediscovery pending state */
3663 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3664 spin_unlock_irq(&phba->hbalock);
3665}
3666
3667/**
3668 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3669 * @ptr: Map to lpfc_hba data structure pointer.
3670 *
3671 * This routine is invoked when waiting for FCF table rediscover has been
3672 * timed out. If new FCF record(s) has (have) been discovered during the
3673 * wait period, a new FCF event shall be added to the FCOE async event
3674 * list, and then worker thread shall be waked up for processing from the
3675 * worker thread context.
3676 **/
e399b228 3677static void
ecfd03c6
JS		 3678lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3679{
3680 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3681
3682 /* Don't send FCF rediscovery event if timer cancelled */
3683 spin_lock_irq(&phba->hbalock);
3684 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3685 spin_unlock_irq(&phba->hbalock);
3686 return;
3687 }
3688 /* Clear FCF rediscovery timer pending flag */
3689 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3690 /* FCF rediscovery event to worker thread */
3691 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3692 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3693 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3694 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3695 /* wake up worker thread */
3696 lpfc_worker_wake_up(phba);
3697}
3698
e59058c4 3699/**
da0436e9 3700 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3701 * @phba: pointer to lpfc hba data structure.
da0436e9 3702 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3703 *
da0436e9
JS		 3704 * This routine is to parse the SLI4 link-attention link fault code and
3705 * translate it into the base driver's read link attention mailbox command
3706 * status.
3707 *
3708 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3709 **/
da0436e9
JS		 3710static uint16_t
3711lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3712 struct lpfc_acqe_link *acqe_link)
db2378e0 3713{
da0436e9 3714 uint16_t latt_fault;
9399627f 3715
da0436e9
JS		 3716 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3717 case LPFC_ASYNC_LINK_FAULT_NONE:
3718 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3719 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3720 latt_fault = 0;
3721 break;
3722 default:
3723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3724 "0398 Invalid link fault code: x%x\n",
3725 bf_get(lpfc_acqe_link_fault, acqe_link));
3726 latt_fault = MBXERR_ERROR;
3727 break;
3728 }
3729 return latt_fault;
db2378e0
JS		 3730}
3731
5b75da2f 3732/**
da0436e9 3733 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3734 * @phba: pointer to lpfc hba data structure.
da0436e9 3735 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3736 *
da0436e9
JS		 3737 * This routine is to parse the SLI4 link attention type and translate it
3738 * into the base driver's link attention type coding.
5b75da2f 3739 *
da0436e9
JS		 3740 * Return: Link attention type in terms of base driver's coding.
3741 **/
3742static uint8_t
3743lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3744 struct lpfc_acqe_link *acqe_link)
5b75da2f 3745{
da0436e9 3746 uint8_t att_type;
5b75da2f 3747
da0436e9
JS		 3748 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3749 case LPFC_ASYNC_LINK_STATUS_DOWN:
3750 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3751 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3752 break;
3753 case LPFC_ASYNC_LINK_STATUS_UP:
3754 /* Ignore physical link up events - wait for logical link up */
76a95d75 3755 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3756 break;
3757 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3758 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3759 break;
3760 default:
3761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3762 "0399 Invalid link attention type: x%x\n",
3763 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3764 att_type = LPFC_ATT_RESERVED;
da0436e9 3765 break;
5b75da2f 3766 }
da0436e9 3767 return att_type;
5b75da2f
JS		 3768}
3769
8b68cd52
JS		 3770/**
3771 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3772 * @phba: pointer to lpfc hba data structure.
3773 *
3774 * This routine is to get an SLI3 FC port's link speed in Mbps.
3775 *
3776 * Return: link speed in terms of Mbps.
3777 **/
3778uint32_t
3779lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3780{
3781 uint32_t link_speed;
3782
3783 if (!lpfc_is_link_up(phba))
3784 return 0;
3785
a085e87c
JS		 3786 if (phba->sli_rev <= LPFC_SLI_REV3) {
3787 switch (phba->fc_linkspeed) {
3788 case LPFC_LINK_SPEED_1GHZ:
3789 link_speed = 1000;
3790 break;
3791 case LPFC_LINK_SPEED_2GHZ:
3792 link_speed = 2000;
3793 break;
3794 case LPFC_LINK_SPEED_4GHZ:
3795 link_speed = 4000;
3796 break;
3797 case LPFC_LINK_SPEED_8GHZ:
3798 link_speed = 8000;
3799 break;
3800 case LPFC_LINK_SPEED_10GHZ:
3801 link_speed = 10000;
3802 break;
3803 case LPFC_LINK_SPEED_16GHZ:
3804 link_speed = 16000;
3805 break;
3806 default:
3807 link_speed = 0;
3808 }
3809 } else {
3810 if (phba->sli4_hba.link_state.logical_speed)
3811 link_speed =
3812 phba->sli4_hba.link_state.logical_speed;
3813 else
3814 link_speed = phba->sli4_hba.link_state.speed;
8b68cd52
JS		 3815 }
3816 return link_speed;
3817}
3818
3819/**
3820 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3821 * @phba: pointer to lpfc hba data structure.
3822 * @evt_code: asynchronous event code.
3823 * @speed_code: asynchronous event link speed code.
3824 *
3825 * This routine is to parse the giving SLI4 async event link speed code into
3826 * value of Mbps for the link speed.
3827 *
3828 * Return: link speed in terms of Mbps.
3829 **/
3830static uint32_t
3831lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3832 uint8_t speed_code)
3833{
3834 uint32_t port_speed;
3835
3836 switch (evt_code) {
3837 case LPFC_TRAILER_CODE_LINK:
3838 switch (speed_code) {
26d830ec 3839 case LPFC_ASYNC_LINK_SPEED_ZERO:
8b68cd52
JS		 3840 port_speed = 0;
3841 break;
26d830ec 3842 case LPFC_ASYNC_LINK_SPEED_10MBPS:
8b68cd52
JS		 3843 port_speed = 10;
3844 break;
26d830ec 3845 case LPFC_ASYNC_LINK_SPEED_100MBPS:
8b68cd52
JS		 3846 port_speed = 100;
3847 break;
26d830ec 3848 case LPFC_ASYNC_LINK_SPEED_1GBPS:
8b68cd52
JS		 3849 port_speed = 1000;
3850 break;
26d830ec 3851 case LPFC_ASYNC_LINK_SPEED_10GBPS:
8b68cd52
JS		 3852 port_speed = 10000;
3853 break;
26d830ec
JS		 3854 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3855 port_speed = 20000;
3856 break;
3857 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3858 port_speed = 25000;
3859 break;
3860 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3861 port_speed = 40000;
3862 break;
8b68cd52
JS		 3863 default:
3864 port_speed = 0;
3865 }
3866 break;
3867 case LPFC_TRAILER_CODE_FC:
3868 switch (speed_code) {
26d830ec 3869 case LPFC_FC_LA_SPEED_UNKNOWN:
8b68cd52
JS		 3870 port_speed = 0;
3871 break;
26d830ec 3872 case LPFC_FC_LA_SPEED_1G:
8b68cd52
JS		 3873 port_speed = 1000;
3874 break;
26d830ec 3875 case LPFC_FC_LA_SPEED_2G:
8b68cd52
JS		 3876 port_speed = 2000;
3877 break;
26d830ec 3878 case LPFC_FC_LA_SPEED_4G:
8b68cd52
JS		 3879 port_speed = 4000;
3880 break;
26d830ec 3881 case LPFC_FC_LA_SPEED_8G:
8b68cd52
JS		 3882 port_speed = 8000;
3883 break;
26d830ec 3884 case LPFC_FC_LA_SPEED_10G:
8b68cd52
JS		 3885 port_speed = 10000;
3886 break;
26d830ec 3887 case LPFC_FC_LA_SPEED_16G:
8b68cd52
JS		 3888 port_speed = 16000;
3889 break;
d38dd52c
JS		 3890 case LPFC_FC_LA_SPEED_32G:
3891 port_speed = 32000;
3892 break;
8b68cd52
JS		 3893 default:
3894 port_speed = 0;
3895 }
3896 break;
3897 default:
3898 port_speed = 0;
3899 }
3900 return port_speed;
3901}
3902
da0436e9 3903/**
70f3c073 3904 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3905 * @phba: pointer to lpfc hba data structure.
3906 * @acqe_link: pointer to the async link completion queue entry.
3907 *
70f3c073 3908 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3909 **/
3910static void
3911lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3912 struct lpfc_acqe_link *acqe_link)
3913{
3914 struct lpfc_dmabuf *mp;
3915 LPFC_MBOXQ_t *pmb;
3916 MAILBOX_t *mb;
76a95d75 3917 struct lpfc_mbx_read_top *la;
da0436e9 3918 uint8_t att_type;
76a95d75 3919 int rc;
da0436e9
JS		 3920
3921 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3922 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3923 return;
32b9793f 3924 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3925 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3926 if (!pmb) {
3927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3928 "0395 The mboxq allocation failed\n");
3929 return;
3930 }
3931 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3932 if (!mp) {
3933 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3934 "0396 The lpfc_dmabuf allocation failed\n");
3935 goto out_free_pmb;
3936 }
3937 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3938 if (!mp->virt) {
3939 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3940 "0397 The mbuf allocation failed\n");
3941 goto out_free_dmabuf;
3942 }
3943
3944 /* Cleanup any outstanding ELS commands */
3945 lpfc_els_flush_all_cmd(phba);
3946
3947 /* Block ELS IOCBs until we have done process link event */
3948 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3949
3950 /* Update link event statistics */
3951 phba->sli.slistat.link_event++;
3952
76a95d75
JS		 3953 /* Create lpfc_handle_latt mailbox command from link ACQE */
3954 lpfc_read_topology(phba, pmb, mp);
3955 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3956 pmb->vport = phba->pport;
3957
da0436e9
JS		 3958 /* Keep the link status for extra SLI4 state machine reference */
3959 phba->sli4_hba.link_state.speed =
8b68cd52
JS		 3960 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3961 bf_get(lpfc_acqe_link_speed, acqe_link));
da0436e9
JS		 3962 phba->sli4_hba.link_state.duplex =
3963 bf_get(lpfc_acqe_link_duplex, acqe_link);
3964 phba->sli4_hba.link_state.status =
3965 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3966 phba->sli4_hba.link_state.type =
3967 bf_get(lpfc_acqe_link_type, acqe_link);
3968 phba->sli4_hba.link_state.number =
3969 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3970 phba->sli4_hba.link_state.fault =
3971 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3972 phba->sli4_hba.link_state.logical_speed =
8b68cd52
JS		 3973 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3974
70f3c073 3975 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3976 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3977 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3978 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3979 phba->sli4_hba.link_state.speed,
3980 phba->sli4_hba.link_state.topology,
3981 phba->sli4_hba.link_state.status,
3982 phba->sli4_hba.link_state.type,
3983 phba->sli4_hba.link_state.number,
8b68cd52 3984 phba->sli4_hba.link_state.logical_speed,
70f3c073 3985 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3986 /*
3987 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3988 * topology info. Note: Optional for non FC-AL ports.
3989 */
3990 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3991 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3992 if (rc == MBX_NOT_FINISHED)
3993 goto out_free_dmabuf;
3994 return;
3995 }
3996 /*
3997 * For FCoE Mode: fill in all the topology information we need and call
3998 * the READ_TOPOLOGY completion routine to continue without actually
3999 * sending the READ_TOPOLOGY mailbox command to the port.
4000 */
4001 /* Parse and translate status field */
4002 mb = &pmb->u.mb;
4003 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4004
4005 /* Parse and translate link attention fields */
4006 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4007 la->eventTag = acqe_link->event_tag;
4008 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4009 bf_set(lpfc_mbx_read_top_link_spd, la,
a085e87c 4010 (bf_get(lpfc_acqe_link_speed, acqe_link)));
76a95d75
JS		 4011
4012 /* Fake the the following irrelvant fields */
4013 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4014 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4015 bf_set(lpfc_mbx_read_top_il, la, 0);
4016 bf_set(lpfc_mbx_read_top_pb, la, 0);
4017 bf_set(lpfc_mbx_read_top_fa, la, 0);
4018 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 4019
4020 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 4021 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 4022
5b75da2f 4023 return;
da0436e9
JS		 4024
4025out_free_dmabuf:
4026 kfree(mp);
4027out_free_pmb:
4028 mempool_free(pmb, phba->mbox_mem_pool);
4029}
4030
70f3c073
JS		 4031/**
4032 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4033 * @phba: pointer to lpfc hba data structure.
4034 * @acqe_fc: pointer to the async fc completion queue entry.
4035 *
4036 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4037 * that the event was received and then issue a read_topology mailbox command so
4038 * that the rest of the driver will treat it the same as SLI3.
4039 **/
4040static void
4041lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4042{
4043 struct lpfc_dmabuf *mp;
4044 LPFC_MBOXQ_t *pmb;
7bdedb34
JS		 4045 MAILBOX_t *mb;
4046 struct lpfc_mbx_read_top *la;
70f3c073
JS		 4047 int rc;
4048
4049 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4050 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4051 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4052 "2895 Non FC link Event detected.(%d)\n",
4053 bf_get(lpfc_trailer_type, acqe_fc));
4054 return;
4055 }
4056 /* Keep the link status for extra SLI4 state machine reference */
4057 phba->sli4_hba.link_state.speed =
8b68cd52
JS		 4058 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4059 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
70f3c073
JS		 4060 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4061 phba->sli4_hba.link_state.topology =
4062 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4063 phba->sli4_hba.link_state.status =
4064 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4065 phba->sli4_hba.link_state.type =
4066 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4067 phba->sli4_hba.link_state.number =
4068 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4069 phba->sli4_hba.link_state.fault =
4070 bf_get(lpfc_acqe_link_fault, acqe_fc);
4071 phba->sli4_hba.link_state.logical_speed =
8b68cd52 4072 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
70f3c073
JS		 4073 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4074 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4075 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4076 "%dMbps Fault:%d\n",
4077 phba->sli4_hba.link_state.speed,
4078 phba->sli4_hba.link_state.topology,
4079 phba->sli4_hba.link_state.status,
4080 phba->sli4_hba.link_state.type,
4081 phba->sli4_hba.link_state.number,
8b68cd52 4082 phba->sli4_hba.link_state.logical_speed,
70f3c073
JS		 4083 phba->sli4_hba.link_state.fault);
4084 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4085 if (!pmb) {
4086 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4087 "2897 The mboxq allocation failed\n");
4088 return;
4089 }
4090 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4091 if (!mp) {
4092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4093 "2898 The lpfc_dmabuf allocation failed\n");
4094 goto out_free_pmb;
4095 }
4096 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4097 if (!mp->virt) {
4098 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4099 "2899 The mbuf allocation failed\n");
4100 goto out_free_dmabuf;
4101 }
4102
4103 /* Cleanup any outstanding ELS commands */
4104 lpfc_els_flush_all_cmd(phba);
4105
4106 /* Block ELS IOCBs until we have done process link event */
4107 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4108
4109 /* Update link event statistics */
4110 phba->sli.slistat.link_event++;
4111
4112 /* Create lpfc_handle_latt mailbox command from link ACQE */
4113 lpfc_read_topology(phba, pmb, mp);
4114 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4115 pmb->vport = phba->pport;
4116
7bdedb34
JS		 4117 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4118 /* Parse and translate status field */
4119 mb = &pmb->u.mb;
4120 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4121 (void *)acqe_fc);
4122
4123 /* Parse and translate link attention fields */
4124 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4125 la->eventTag = acqe_fc->event_tag;
4126 bf_set(lpfc_mbx_read_top_att_type, la,
4127 LPFC_FC_LA_TYPE_LINK_DOWN);
4128
4129 /* Invoke the mailbox command callback function */
4130 lpfc_mbx_cmpl_read_topology(phba, pmb);
4131
4132 return;
4133 }
4134
70f3c073
JS		 4135 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4136 if (rc == MBX_NOT_FINISHED)
4137 goto out_free_dmabuf;
4138 return;
4139
4140out_free_dmabuf:
4141 kfree(mp);
4142out_free_pmb:
4143 mempool_free(pmb, phba->mbox_mem_pool);
4144}
4145
4146/**
4147 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4148 * @phba: pointer to lpfc hba data structure.
4149 * @acqe_fc: pointer to the async SLI completion queue entry.
4150 *
4151 * This routine is to handle the SLI4 asynchronous SLI events.
4152 **/
4153static void
4154lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4155{
4b8bae08 4156 char port_name;
8c1312e1 4157 char message[128];
4b8bae08 4158 uint8_t status;
946727dc 4159 uint8_t evt_type;
448193b5 4160 uint8_t operational = 0;
946727dc 4161 struct temp_event temp_event_data;
4b8bae08 4162 struct lpfc_acqe_misconfigured_event *misconfigured;
946727dc
JS		 4163 struct Scsi_Host *shost;
4164
4165 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4b8bae08 4166
448193b5
JS		 4167 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4168 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4169 "x%08x SLI Event Type:%d\n",
4170 acqe_sli->event_data1, acqe_sli->event_data2,
4171 evt_type);
4b8bae08
JS		 4172
4173 port_name = phba->Port[0];
4174 if (port_name == 0x00)
4175 port_name = '?'; /* get port name is empty */
4176
946727dc
JS		 4177 switch (evt_type) {
4178 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4179 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4180 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4181 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4182
4183 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4184 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4185 acqe_sli->event_data1, port_name);
4186
310429ef 4187 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
946727dc
JS		 4188 shost = lpfc_shost_from_vport(phba->pport);
4189 fc_host_post_vendor_event(shost, fc_get_event_number(),
4190 sizeof(temp_event_data),
4191 (char *)&temp_event_data,
4192 SCSI_NL_VID_TYPE_PCI
4193 | PCI_VENDOR_ID_EMULEX);
4194 break;
4195 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4196 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4197 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4198 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4199
4200 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4201 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4202 acqe_sli->event_data1, port_name);
4203
4204 shost = lpfc_shost_from_vport(phba->pport);
4205 fc_host_post_vendor_event(shost, fc_get_event_number(),
4206 sizeof(temp_event_data),
4207 (char *)&temp_event_data,
4208 SCSI_NL_VID_TYPE_PCI
4209 | PCI_VENDOR_ID_EMULEX);
4210 break;
4211 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4212 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4b8bae08
JS		 4213 &acqe_sli->event_data1;
4214
946727dc
JS		 4215 /* fetch the status for this port */
4216 switch (phba->sli4_hba.lnk_info.lnk_no) {
4217 case LPFC_LINK_NUMBER_0:
448193b5
JS		 4218 status = bf_get(lpfc_sli_misconfigured_port0_state,
4219 &misconfigured->theEvent);
4220 operational = bf_get(lpfc_sli_misconfigured_port0_op,
4b8bae08 4221 &misconfigured->theEvent);
946727dc
JS		 4222 break;
4223 case LPFC_LINK_NUMBER_1:
448193b5
JS		 4224 status = bf_get(lpfc_sli_misconfigured_port1_state,
4225 &misconfigured->theEvent);
4226 operational = bf_get(lpfc_sli_misconfigured_port1_op,
4b8bae08 4227 &misconfigured->theEvent);
946727dc
JS		 4228 break;
4229 case LPFC_LINK_NUMBER_2:
448193b5
JS		 4230 status = bf_get(lpfc_sli_misconfigured_port2_state,
4231 &misconfigured->theEvent);
4232 operational = bf_get(lpfc_sli_misconfigured_port2_op,
4b8bae08 4233 &misconfigured->theEvent);
946727dc
JS		 4234 break;
4235 case LPFC_LINK_NUMBER_3:
448193b5
JS		 4236 status = bf_get(lpfc_sli_misconfigured_port3_state,
4237 &misconfigured->theEvent);
4238 operational = bf_get(lpfc_sli_misconfigured_port3_op,
4b8bae08 4239 &misconfigured->theEvent);
946727dc
JS		 4240 break;
4241 default:
448193b5
JS		 4242 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4243 "3296 "
4244 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4245 "event: Invalid link %d",
4246 phba->sli4_hba.lnk_info.lnk_no);
4247 return;
946727dc 4248 }
4b8bae08 4249
448193b5
JS		 4250 /* Skip if optic state unchanged */
4251 if (phba->sli4_hba.lnk_info.optic_state == status)
4252 return;
4253
946727dc
JS		 4254 switch (status) {
4255 case LPFC_SLI_EVENT_STATUS_VALID:
448193b5
JS		 4256 sprintf(message, "Physical Link is functional");
4257 break;
946727dc
JS		 4258 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4259 sprintf(message, "Optics faulted/incorrectly "
4260 "installed/not installed - Reseat optics, "
4261 "if issue not resolved, replace.");
4262 break;
4263 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4264 sprintf(message,
4265 "Optics of two types installed - Remove one "
4266 "optic or install matching pair of optics.");
4267 break;
4268 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4269 sprintf(message, "Incompatible optics - Replace with "
292098be 4270 "compatible optics for card to function.");
946727dc 4271 break;
448193b5
JS		 4272 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4273 sprintf(message, "Unqualified optics - Replace with "
4274 "Avago optics for Warranty and Technical "
4275 "Support - Link is%s operational",
4276 (operational) ? "" : " not");
4277 break;
4278 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4279 sprintf(message, "Uncertified optics - Replace with "
4280 "Avago-certified optics to enable link "
4281 "operation - Link is%s operational",
4282 (operational) ? "" : " not");
4283 break;
946727dc
JS		 4284 default:
4285 /* firmware is reporting a status we don't know about */
4286 sprintf(message, "Unknown event status x%02x", status);
4287 break;
4288 }
448193b5 4289 phba->sli4_hba.lnk_info.optic_state = status;
946727dc 4290 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
448193b5 4291 "3176 Port Name %c %s\n", port_name, message);
946727dc
JS		 4292 break;
4293 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4294 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4295 "3192 Remote DPort Test Initiated - "
4296 "Event Data1:x%08x Event Data2: x%08x\n",
4297 acqe_sli->event_data1, acqe_sli->event_data2);
4b8bae08
JS		 4298 break;
4299 default:
946727dc
JS		 4300 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4301 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4302 "x%08x SLI Event Type:%d\n",
4303 acqe_sli->event_data1, acqe_sli->event_data2,
4304 evt_type);
4b8bae08
JS		 4305 break;
4306 }
70f3c073
JS		 4307}
4308
fc2b989b
JS		 4309/**
4310 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4311 * @vport: pointer to vport data structure.
4312 *
4313 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4314 * response to a CVL event.
4315 *
4316 * Return the pointer to the ndlp with the vport if successful, otherwise
4317 * return NULL.
4318 **/
4319static struct lpfc_nodelist *
4320lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4321{
4322 struct lpfc_nodelist *ndlp;
4323 struct Scsi_Host *shost;
4324 struct lpfc_hba *phba;
4325
4326 if (!vport)
4327 return NULL;
fc2b989b
JS		 4328 phba = vport->phba;
4329 if (!phba)
4330 return NULL;
78730cfe
JS		 4331 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4332 if (!ndlp) {
4333 /* Cannot find existing Fabric ndlp, so allocate a new one */
4334 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4335 if (!ndlp)
4336 return 0;
4337 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4338 /* Set the node type */
4339 ndlp->nlp_type |= NLP_FABRIC;
4340 /* Put ndlp onto node list */
4341 lpfc_enqueue_node(vport, ndlp);
4342 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4343 /* re-setup ndlp without removing from node list */
4344 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4345 if (!ndlp)
4346 return 0;
4347 }
63e801ce
JS		 4348 if ((phba->pport->port_state < LPFC_FLOGI) &&
4349 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 4350 return NULL;
4351 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 4352 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4353 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 4354 return NULL;
4355 shost = lpfc_shost_from_vport(vport);
4356 if (!shost)
4357 return NULL;
4358 lpfc_linkdown_port(vport);
4359 lpfc_cleanup_pending_mbox(vport);
4360 spin_lock_irq(shost->host_lock);
4361 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4362 spin_unlock_irq(shost->host_lock);
4363
4364 return ndlp;
4365}
4366
4367/**
4368 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4369 * @vport: pointer to lpfc hba data structure.
4370 *
4371 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4372 * response to a FCF dead event.
4373 **/
4374static void
4375lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4376{
4377 struct lpfc_vport **vports;
4378 int i;
4379
4380 vports = lpfc_create_vport_work_array(phba);
4381 if (vports)
4382 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4383 lpfc_sli4_perform_vport_cvl(vports[i]);
4384 lpfc_destroy_vport_work_array(phba, vports);
4385}
4386
da0436e9 4387/**
76a95d75 4388 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 4389 * @phba: pointer to lpfc hba data structure.
4390 * @acqe_link: pointer to the async fcoe completion queue entry.
4391 *
4392 * This routine is to handle the SLI4 asynchronous fcoe event.
4393 **/
4394static void
76a95d75 4395lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 4396 struct lpfc_acqe_fip *acqe_fip)
da0436e9 4397{
70f3c073 4398 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 4399 int rc;
6669f9bb
JS		 4400 struct lpfc_vport *vport;
4401 struct lpfc_nodelist *ndlp;
4402 struct Scsi_Host *shost;
695a814e
JS		 4403 int active_vlink_present;
4404 struct lpfc_vport **vports;
4405 int i;
da0436e9 4406
70f3c073
JS		 4407 phba->fc_eventTag = acqe_fip->event_tag;
4408 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 4409 switch (event_type) {
70f3c073
JS		 4410 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4411 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4412 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 4413 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4414 LOG_DISCOVERY,
a93ff37a
JS		 4415 "2546 New FCF event, evt_tag:x%x, "
4416 "index:x%x\n",
70f3c073
JS		 4417 acqe_fip->event_tag,
4418 acqe_fip->index);
999d813f
JS		 4419 else
4420 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4421 LOG_DISCOVERY,
a93ff37a
JS		 4422 "2788 FCF param modified event, "
4423 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 4424 acqe_fip->event_tag,
4425 acqe_fip->index);
38b92ef8 4426 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 4427 /*
4428 * During period of FCF discovery, read the FCF
4429 * table record indexed by the event to update
a93ff37a 4430 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 4431 */
4432 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4433 LOG_DISCOVERY,
a93ff37a
JS		 4434 "2779 Read FCF (x%x) for updating "
4435 "roundrobin FCF failover bmask\n",
70f3c073
JS		 4436 acqe_fip->index);
4437 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 4438 }
38b92ef8
JS		 4439
4440 /* If the FCF discovery is in progress, do nothing. */
3804dc84 4441 spin_lock_irq(&phba->hbalock);
a93ff37a 4442 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 4443 spin_unlock_irq(&phba->hbalock);
4444 break;
4445 }
4446 /* If fast FCF failover rescan event is pending, do nothing */
4447 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4448 spin_unlock_irq(&phba->hbalock);
4449 break;
4450 }
4451
c2b9712e
JS		 4452 /* If the FCF has been in discovered state, do nothing. */
4453 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3804dc84
JS		 4454 spin_unlock_irq(&phba->hbalock);
4455 break;
4456 }
4457 spin_unlock_irq(&phba->hbalock);
38b92ef8 4458
0c9ab6f5
JS		 4459 /* Otherwise, scan the entire FCF table and re-discover SAN */
4460 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 4461 "2770 Start FCF table scan per async FCF "
4462 "event, evt_tag:x%x, index:x%x\n",
70f3c073 4463 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 4464 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4465 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 4466 if (rc)
0c9ab6f5
JS		 4467 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4468 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 4469 "command failed (x%x)\n", rc);
da0436e9
JS		 4470 break;
4471
70f3c073 4472 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 4473 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 4474 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 4475 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4476 acqe_fip->event_tag);
da0436e9
JS		 4477 break;
4478
70f3c073 4479 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
80c17849 4480 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 4481 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 4482 "2549 FCF (x%x) disconnected from network, "
70f3c073 4483 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 4484 /*
4485 * If we are in the middle of FCF failover process, clear
4486 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 4487 */
fc2b989b 4488 spin_lock_irq(&phba->hbalock);
a1cadfef
JS		 4489 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4490 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
fc2b989b 4491 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 4492 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 4493 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 4494 break;
4495 }
38b92ef8
JS		 4496 spin_unlock_irq(&phba->hbalock);
4497
4498 /* If the event is not for currently used fcf do nothing */
70f3c073 4499 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 4500 break;
4501
4502 /*
4503 * Otherwise, request the port to rediscover the entire FCF
4504 * table for a fast recovery from case that the current FCF
4505 * is no longer valid as we are not in the middle of FCF
4506 * failover process already.
4507 */
c2b9712e
JS		 4508 spin_lock_irq(&phba->hbalock);
4509 /* Mark the fast failover process in progress */
4510 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4511 spin_unlock_irq(&phba->hbalock);
4512
4513 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4514 "2771 Start FCF fast failover process due to "
4515 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4516 "\n", acqe_fip->event_tag, acqe_fip->index);
4517 rc = lpfc_sli4_redisc_fcf_table(phba);
4518 if (rc) {
4519 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4520 LOG_DISCOVERY,
4521 "2772 Issue FCF rediscover mabilbox "
4522 "command failed, fail through to FCF "
4523 "dead event\n");
4524 spin_lock_irq(&phba->hbalock);
4525 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4526 spin_unlock_irq(&phba->hbalock);
4527 /*
4528 * Last resort will fail over by treating this
4529 * as a link down to FCF registration.
4530 */
4531 lpfc_sli4_fcf_dead_failthrough(phba);
4532 } else {
4533 /* Reset FCF roundrobin bmask for new discovery */
4534 lpfc_sli4_clear_fcf_rr_bmask(phba);
4535 /*
4536 * Handling fast FCF failover to a DEAD FCF event is
4537 * considered equalivant to receiving CVL to all vports.
4538 */
4539 lpfc_sli4_perform_all_vport_cvl(phba);
4540 }
da0436e9 4541 break;
70f3c073 4542 case LPFC_FIP_EVENT_TYPE_CVL:
80c17849 4543 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 4544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 4545 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 4546 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 4547
6669f9bb 4548 vport = lpfc_find_vport_by_vpid(phba,
5248a749 4549 acqe_fip->index);
fc2b989b 4550 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 4551 if (!ndlp)
4552 break;
695a814e
JS		 4553 active_vlink_present = 0;
4554
4555 vports = lpfc_create_vport_work_array(phba);
4556 if (vports) {
4557 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4558 i++) {
4559 if ((!(vports[i]->fc_flag &
4560 FC_VPORT_CVL_RCVD)) &&
4561 (vports[i]->port_state > LPFC_FDISC)) {
4562 active_vlink_present = 1;
4563 break;
4564 }
4565 }
4566 lpfc_destroy_vport_work_array(phba, vports);
4567 }
4568
cc82355a
JS		 4569 /*
4570 * Don't re-instantiate if vport is marked for deletion.
4571 * If we are here first then vport_delete is going to wait
4572 * for discovery to complete.
4573 */
4574 if (!(vport->load_flag & FC_UNLOADING) &&
4575 active_vlink_present) {
695a814e
JS		 4576 /*
4577 * If there are other active VLinks present,
4578 * re-instantiate the Vlink using FDISC.
4579 */
256ec0d0
JS		 4580 mod_timer(&ndlp->nlp_delayfunc,
4581 jiffies + msecs_to_jiffies(1000));
fc2b989b 4582 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 4583 spin_lock_irq(shost->host_lock);
4584 ndlp->nlp_flag |= NLP_DELAY_TMO;
4585 spin_unlock_irq(shost->host_lock);
695a814e
JS		 4586 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4587 vport->port_state = LPFC_FDISC;
4588 } else {
ecfd03c6
JS		 4589 /*
4590 * Otherwise, we request port to rediscover
4591 * the entire FCF table for a fast recovery
4592 * from possible case that the current FCF
0c9ab6f5
JS		 4593 * is no longer valid if we are not already
4594 * in the FCF failover process.
ecfd03c6 4595 */
fc2b989b 4596 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4597 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 4598 spin_unlock_irq(&phba->hbalock);
4599 break;
4600 }
4601 /* Mark the fast failover process in progress */
0c9ab6f5 4602 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 4603 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 4604 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4605 LOG_DISCOVERY,
a93ff37a 4606 "2773 Start FCF failover per CVL, "
70f3c073 4607 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 4608 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 4609 if (rc) {
0c9ab6f5
JS		 4610 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4611 LOG_DISCOVERY,
4612 "2774 Issue FCF rediscover "
4613 "mabilbox command failed, "
4614 "through to CVL event\n");
fc2b989b 4615 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4616 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 4617 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 4618 /*
4619 * Last resort will be re-try on the
4620 * the current registered FCF entry.
4621 */
4622 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 4623 } else
4624 /*
4625 * Reset FCF roundrobin bmask for new
4626 * discovery.
4627 */
7d791df7 4628 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 4629 }
4630 break;
da0436e9
JS		 4631 default:
4632 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4633 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 4634 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 4635 break;
4636 }
4637}
4638
4639/**
4640 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4641 * @phba: pointer to lpfc hba data structure.
4642 * @acqe_link: pointer to the async dcbx completion queue entry.
4643 *
4644 * This routine is to handle the SLI4 asynchronous dcbx event.
4645 **/
4646static void
4647lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4648 struct lpfc_acqe_dcbx *acqe_dcbx)
4649{
4d9ab994 4650 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 4651 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4652 "0290 The SLI4 DCBX asynchronous event is not "
4653 "handled yet\n");
4654}
4655
b19a061a
JS		 4656/**
4657 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4658 * @phba: pointer to lpfc hba data structure.
4659 * @acqe_link: pointer to the async grp5 completion queue entry.
4660 *
4661 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4662 * is an asynchronous notified of a logical link speed change. The Port
4663 * reports the logical link speed in units of 10Mbps.
4664 **/
4665static void
4666lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4667 struct lpfc_acqe_grp5 *acqe_grp5)
4668{
4669 uint16_t prev_ll_spd;
4670
4671 phba->fc_eventTag = acqe_grp5->event_tag;
4672 phba->fcoe_eventtag = acqe_grp5->event_tag;
4673 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4674 phba->sli4_hba.link_state.logical_speed =
8b68cd52 4675 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
b19a061a
JS		 4676 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4677 "2789 GRP5 Async Event: Updating logical link speed "
8b68cd52
JS		 4678 "from %dMbps to %dMbps\n", prev_ll_spd,
4679 phba->sli4_hba.link_state.logical_speed);
b19a061a
JS		 4680}
4681
da0436e9
JS		 4682/**
4683 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4684 * @phba: pointer to lpfc hba data structure.
4685 *
4686 * This routine is invoked by the worker thread to process all the pending
4687 * SLI4 asynchronous events.
4688 **/
4689void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4690{
4691 struct lpfc_cq_event *cq_event;
4692
4693 /* First, declare the async event has been handled */
4694 spin_lock_irq(&phba->hbalock);
4695 phba->hba_flag &= ~ASYNC_EVENT;
4696 spin_unlock_irq(&phba->hbalock);
4697 /* Now, handle all the async events */
4698 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4699 /* Get the first event from the head of the event queue */
4700 spin_lock_irq(&phba->hbalock);
4701 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4702 cq_event, struct lpfc_cq_event, list);
4703 spin_unlock_irq(&phba->hbalock);
4704 /* Process the asynchronous event */
4705 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4706 case LPFC_TRAILER_CODE_LINK:
4707 lpfc_sli4_async_link_evt(phba,
4708 &cq_event->cqe.acqe_link);
4709 break;
4710 case LPFC_TRAILER_CODE_FCOE:
70f3c073 4711 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 4712 break;
4713 case LPFC_TRAILER_CODE_DCBX:
4714 lpfc_sli4_async_dcbx_evt(phba,
4715 &cq_event->cqe.acqe_dcbx);
4716 break;
b19a061a
JS		 4717 case LPFC_TRAILER_CODE_GRP5:
4718 lpfc_sli4_async_grp5_evt(phba,
4719 &cq_event->cqe.acqe_grp5);
4720 break;
70f3c073
JS		 4721 case LPFC_TRAILER_CODE_FC:
4722 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4723 break;
4724 case LPFC_TRAILER_CODE_SLI:
4725 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4726 break;
da0436e9
JS		 4727 default:
4728 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4729 "1804 Invalid asynchrous event code: "
4730 "x%x\n", bf_get(lpfc_trailer_code,
4731 &cq_event->cqe.mcqe_cmpl));
4732 break;
4733 }
4734 /* Free the completion event processed to the free pool */
4735 lpfc_sli4_cq_event_release(phba, cq_event);
4736 }
4737}
4738
ecfd03c6
JS		 4739/**
4740 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4741 * @phba: pointer to lpfc hba data structure.
4742 *
4743 * This routine is invoked by the worker thread to process FCF table
4744 * rediscovery pending completion event.
4745 **/
4746void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4747{
4748 int rc;
4749
4750 spin_lock_irq(&phba->hbalock);
4751 /* Clear FCF rediscovery timeout event */
4752 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4753 /* Clear driver fast failover FCF record flag */
4754 phba->fcf.failover_rec.flag = 0;
4755 /* Set state for FCF fast failover */
4756 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4757 spin_unlock_irq(&phba->hbalock);
4758
4759 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 4760 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 4761 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 4762 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 4763 if (rc)
0c9ab6f5
JS		 4764 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4765 "2747 Issue FCF scan read FCF mailbox "
4766 "command failed 0x%x\n", rc);
ecfd03c6
JS		 4767}
4768
da0436e9
JS		 4769/**
4770 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4771 * @phba: pointer to lpfc hba data structure.
4772 * @dev_grp: The HBA PCI-Device group number.
4773 *
4774 * This routine is invoked to set up the per HBA PCI-Device group function
4775 * API jump table entries.
4776 *
4777 * Return: 0 if success, otherwise -ENODEV
4778 **/
4779int
4780lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4781{
4782 int rc;
4783
4784 /* Set up lpfc PCI-device group */
4785 phba->pci_dev_grp = dev_grp;
4786
4787 /* The LPFC_PCI_DEV_OC uses SLI4 */
4788 if (dev_grp == LPFC_PCI_DEV_OC)
4789 phba->sli_rev = LPFC_SLI_REV4;
4790
4791 /* Set up device INIT API function jump table */
4792 rc = lpfc_init_api_table_setup(phba, dev_grp);
4793 if (rc)
4794 return -ENODEV;
4795 /* Set up SCSI API function jump table */
4796 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4797 if (rc)
4798 return -ENODEV;
4799 /* Set up SLI API function jump table */
4800 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4801 if (rc)
4802 return -ENODEV;
4803 /* Set up MBOX API function jump table */
4804 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4805 if (rc)
4806 return -ENODEV;
4807
4808 return 0;
5b75da2f
JS		 4809}
4810
4811/**
3621a710 4812 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 4813 * @phba: pointer to lpfc hba data structure.
4814 * @intr_mode: active interrupt mode adopted.
4815 *
4816 * This routine it invoked to log the currently used active interrupt mode
4817 * to the device.
3772a991
JS		 4818 **/
4819static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 4820{
4821 switch (intr_mode) {
4822 case 0:
4823 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4824 "0470 Enable INTx interrupt mode.\n");
4825 break;
4826 case 1:
4827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4828 "0481 Enabled MSI interrupt mode.\n");
4829 break;
4830 case 2:
4831 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4832 "0480 Enabled MSI-X interrupt mode.\n");
4833 break;
4834 default:
4835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4836 "0482 Illegal interrupt mode.\n");
4837 break;
4838 }
4839 return;
4840}
4841
5b75da2f 4842/**
3772a991 4843 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 4844 * @phba: pointer to lpfc hba data structure.
4845 *
3772a991
JS		 4846 * This routine is invoked to enable the PCI device that is common to all
4847 * PCI devices.
5b75da2f
JS		 4848 *
4849 * Return codes
af901ca1 4850 * 0 - successful
3772a991 4851 * other values - error
5b75da2f 4852 **/
3772a991
JS		 4853static int
4854lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4855{
3772a991 4856 struct pci_dev *pdev;
5b75da2f 4857
3772a991
JS		 4858 /* Obtain PCI device reference */
4859 if (!phba->pcidev)
4860 goto out_error;
4861 else
4862 pdev = phba->pcidev;
3772a991
JS		 4863 /* Enable PCI device */
4864 if (pci_enable_device_mem(pdev))
4865 goto out_error;
4866 /* Request PCI resource for the device */
e0c0483c 4867 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
3772a991
JS		 4868 goto out_disable_device;
4869 /* Set up device as PCI master and save state for EEH */
4870 pci_set_master(pdev);
4871 pci_try_set_mwi(pdev);
4872 pci_save_state(pdev);
5b75da2f 4873
0558056c 4874 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
453193e0 4875 if (pci_is_pcie(pdev))
0558056c
JS		 4876 pdev->needs_freset = 1;
4877
3772a991 4878 return 0;
5b75da2f 4879
3772a991
JS		 4880out_disable_device:
4881 pci_disable_device(pdev);
4882out_error:
079b5c91 4883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e0c0483c 4884 "1401 Failed to enable pci device\n");
3772a991 4885 return -ENODEV;
5b75da2f
JS		 4886}
4887
4888/**
3772a991 4889 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 4890 * @phba: pointer to lpfc hba data structure.
4891 *
3772a991
JS		 4892 * This routine is invoked to disable the PCI device that is common to all
4893 * PCI devices.
5b75da2f
JS		 4894 **/
4895static void
3772a991 4896lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4897{
3772a991 4898 struct pci_dev *pdev;
5b75da2f 4899
3772a991
JS		 4900 /* Obtain PCI device reference */
4901 if (!phba->pcidev)
4902 return;
4903 else
4904 pdev = phba->pcidev;
3772a991 4905 /* Release PCI resource and disable PCI device */
e0c0483c 4906 pci_release_mem_regions(pdev);
3772a991 4907 pci_disable_device(pdev);
5b75da2f
JS		 4908
4909 return;
4910}
4911
e59058c4 4912/**
3772a991
JS		 4913 * lpfc_reset_hba - Reset a hba
4914 * @phba: pointer to lpfc hba data structure.
e59058c4 4915 *
3772a991
JS		 4916 * This routine is invoked to reset a hba device. It brings the HBA
4917 * offline, performs a board restart, and then brings the board back
4918 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4919 * on outstanding mailbox commands.
e59058c4 4920 **/
3772a991
JS		 4921void
4922lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4923{
3772a991
JS		 4924 /* If resets are disabled then set error state and return. */
4925 if (!phba->cfg_enable_hba_reset) {
4926 phba->link_state = LPFC_HBA_ERROR;
4927 return;
4928 }
ee62021a
JS		 4929 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4930 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4931 else
4932 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
3772a991
JS		 4933 lpfc_offline(phba);
4934 lpfc_sli_brdrestart(phba);
4935 lpfc_online(phba);
4936 lpfc_unblock_mgmt_io(phba);
4937}
dea3101e 4938
0a96e975
JS		 4939/**
4940 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4941 * @phba: pointer to lpfc hba data structure.
4942 *
4943 * This function enables the PCI SR-IOV virtual functions to a physical
4944 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4945 * enable the number of virtual functions to the physical function. As
4946 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4947 * API call does not considered as an error condition for most of the device.
4948 **/
4949uint16_t
4950lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4951{
4952 struct pci_dev *pdev = phba->pcidev;
4953 uint16_t nr_virtfn;
4954 int pos;
4955
0a96e975
JS		 4956 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4957 if (pos == 0)
4958 return 0;
4959
4960 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4961 return nr_virtfn;
4962}
4963
912e3acd
JS		 4964/**
4965 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4966 * @phba: pointer to lpfc hba data structure.
4967 * @nr_vfn: number of virtual functions to be enabled.
4968 *
4969 * This function enables the PCI SR-IOV virtual functions to a physical
4970 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4971 * enable the number of virtual functions to the physical function. As
4972 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4973 * API call does not considered as an error condition for most of the device.
4974 **/
4975int
4976lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4977{
4978 struct pci_dev *pdev = phba->pcidev;
0a96e975 4979 uint16_t max_nr_vfn;
912e3acd
JS		 4980 int rc;
4981
0a96e975
JS		 4982 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4983 if (nr_vfn > max_nr_vfn) {
4984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4985 "3057 Requested vfs (%d) greater than "
4986 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4987 return -EINVAL;
4988 }
4989
912e3acd
JS		 4990 rc = pci_enable_sriov(pdev, nr_vfn);
4991 if (rc) {
4992 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4993 "2806 Failed to enable sriov on this device "
4994 "with vfn number nr_vf:%d, rc:%d\n",
4995 nr_vfn, rc);
4996 } else
4997 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4998 "2807 Successful enable sriov on this device "
4999 "with vfn number nr_vf:%d\n", nr_vfn);
5000 return rc;
5001}
5002
3772a991
JS		 5003/**
5004 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
5005 * @phba: pointer to lpfc hba data structure.
5006 *
5007 * This routine is invoked to set up the driver internal resources specific to
5008 * support the SLI-3 HBA device it attached to.
5009 *
5010 * Return codes
af901ca1 5011 * 0 - successful
3772a991
JS		 5012 * other values - error
5013 **/
5014static int
5015lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5016{
5017 struct lpfc_sli *psli;
912e3acd 5018 int rc;
dea3101e 5019
2e0fef85 5020 /*
3772a991 5021 * Initialize timers used by driver
2e0fef85 5022 */
dea3101e 5023
3772a991 5024 /* Heartbeat timer */
858c9f6c
JS		 5025 init_timer(&phba->hb_tmofunc);
5026 phba->hb_tmofunc.function = lpfc_hb_timeout;
5027 phba->hb_tmofunc.data = (unsigned long)phba;
5028
dea3101e 5029 psli = &phba->sli;
3772a991 5030 /* MBOX heartbeat timer */
dea3101e 5031 init_timer(&psli->mbox_tmo);
5032 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 5033 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 5034 /* FCP polling mode timer */
875fbdfe
JSEC		 5035 init_timer(&phba->fcp_poll_timer);
5036 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 5037 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 5038 /* Fabric block timer */
92d7f7b0
JS		 5039 init_timer(&phba->fabric_block_timer);
5040 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5041 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 5042 /* EA polling mode timer */
9399627f
JS		 5043 init_timer(&phba->eratt_poll);
5044 phba->eratt_poll.function = lpfc_poll_eratt;
5045 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 5046
3772a991
JS		 5047 /* Host attention work mask setup */
5048 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5049 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 5050
3772a991
JS		 5051 /* Get all the module params for configuring this host */
5052 lpfc_get_cfgparam(phba);
49198b37
JS		 5053 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5054 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5055 /* check for menlo minimum sg count */
5056 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5057 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5058 }
5059
2a76a283 5060 if (!phba->sli.ring)
c6cb9b4f 5061 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
2a76a283
JS		 5062 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5063 if (!phba->sli.ring)
5064 return -ENOMEM;
5065
dea3101e 5066 /*
96f7077f 5067 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
3772a991 5068 * used to create the sg_dma_buf_pool must be dynamically calculated.
dea3101e 5069 */
3772a991 5070
96f7077f
JS		 5071 /* Initialize the host templates the configured values. */
5072 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5f406fae 5073 lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
96f7077f
JS		 5074
5075 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
3772a991 5076 if (phba->cfg_enable_bg) {
96f7077f
JS		 5077 /*
5078 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5079 * the FCP rsp, and a BDE for each. Sice we have no control
5080 * over how many protection data segments the SCSI Layer
5081 * will hand us (ie: there could be one for every block
5082 * in the IO), we just allocate enough BDEs to accomidate
5083 * our max amount and we need to limit lpfc_sg_seg_cnt to
5084 * minimize the risk of running out.
5085 */
5086 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5087 sizeof(struct fcp_rsp) +
5088 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5089
5090 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5091 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5092
5093 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5094 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5095 } else {
5096 /*
5097 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5098 * the FCP rsp, a BDE for each, and a BDE for up to
5099 * cfg_sg_seg_cnt data segments.
5100 */
5101 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5102 sizeof(struct fcp_rsp) +
5103 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5104
5105 /* Total BDEs in BPL for scsi_sg_list */
5106 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
901a920f 5107 }
dea3101e 5108
96f7077f
JS		 5109 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5110 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5111 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5112 phba->cfg_total_seg_cnt);
dea3101e 5113
3772a991
JS		 5114 phba->max_vpi = LPFC_MAX_VPI;
5115 /* This will be set to correct value after config_port mbox */
5116 phba->max_vports = 0;
dea3101e 5117
3772a991
JS		 5118 /*
5119 * Initialize the SLI Layer to run with lpfc HBAs.
5120 */
5121 lpfc_sli_setup(phba);
5122 lpfc_sli_queue_setup(phba);
ed957684 5123
3772a991
JS		 5124 /* Allocate device driver memory */
5125 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5126 return -ENOMEM;
51ef4c26 5127
912e3acd
JS		 5128 /*
5129 * Enable sr-iov virtual functions if supported and configured
5130 * through the module parameter.
5131 */
5132 if (phba->cfg_sriov_nr_virtfn > 0) {
5133 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5134 phba->cfg_sriov_nr_virtfn);
5135 if (rc) {
5136 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5137 "2808 Requested number of SR-IOV "
5138 "virtual functions (%d) is not "
5139 "supported\n",
5140 phba->cfg_sriov_nr_virtfn);
5141 phba->cfg_sriov_nr_virtfn = 0;
5142 }
5143 }
5144
3772a991
JS		 5145 return 0;
5146}
ed957684 5147
3772a991
JS		 5148/**
5149 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5150 * @phba: pointer to lpfc hba data structure.
5151 *
5152 * This routine is invoked to unset the driver internal resources set up
5153 * specific for supporting the SLI-3 HBA device it attached to.
5154 **/
5155static void
5156lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5157{
5158 /* Free device driver memory allocated */
5159 lpfc_mem_free_all(phba);
3163f725 5160
3772a991
JS		 5161 return;
5162}
dea3101e 5163
3772a991 5164/**
da0436e9 5165 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 5166 * @phba: pointer to lpfc hba data structure.
5167 *
da0436e9
JS		 5168 * This routine is invoked to set up the driver internal resources specific to
5169 * support the SLI-4 HBA device it attached to.
3772a991
JS		 5170 *
5171 * Return codes
af901ca1 5172 * 0 - successful
da0436e9 5173 * other values - error
3772a991
JS		 5174 **/
5175static int
da0436e9 5176lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 5177{
7bb03bbf 5178 struct lpfc_vector_map_info *cpup;
da0436e9 5179 struct lpfc_sli *psli;
28baac74 5180 LPFC_MBOXQ_t *mboxq;
96f7077f 5181 int rc, i, hbq_count, max_buf_size;
28baac74
JS		 5182 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5183 struct lpfc_mqe *mqe;
09294d46 5184 int longs;
1ba981fd 5185 int fof_vectors = 0;
da0436e9 5186
716d3bc5
JS		 5187 /* Get all the module params for configuring this host */
5188 lpfc_get_cfgparam(phba);
5189
da0436e9
JS		 5190 /* Before proceed, wait for POST done and device ready */
5191 rc = lpfc_sli4_post_status_check(phba);
5192 if (rc)
5193 return -ENODEV;
5194
3772a991 5195 /*
da0436e9 5196 * Initialize timers used by driver
3772a991 5197 */
3772a991 5198
da0436e9
JS		 5199 /* Heartbeat timer */
5200 init_timer(&phba->hb_tmofunc);
5201 phba->hb_tmofunc.function = lpfc_hb_timeout;
5202 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 5203 init_timer(&phba->rrq_tmr);
5204 phba->rrq_tmr.function = lpfc_rrq_timeout;
5205 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 5206
da0436e9
JS		 5207 psli = &phba->sli;
5208 /* MBOX heartbeat timer */
5209 init_timer(&psli->mbox_tmo);
5210 psli->mbox_tmo.function = lpfc_mbox_timeout;
5211 psli->mbox_tmo.data = (unsigned long) phba;
5212 /* Fabric block timer */
5213 init_timer(&phba->fabric_block_timer);
5214 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5215 phba->fabric_block_timer.data = (unsigned long) phba;
5216 /* EA polling mode timer */
5217 init_timer(&phba->eratt_poll);
5218 phba->eratt_poll.function = lpfc_poll_eratt;
5219 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 5220 /* FCF rediscover timer */
5221 init_timer(&phba->fcf.redisc_wait);
5222 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5223 phba->fcf.redisc_wait.data = (unsigned long)phba;
5224
7ad20aa9
JS		 5225 /*
5226 * Control structure for handling external multi-buffer mailbox
5227 * command pass-through.
5228 */
5229 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5230 sizeof(struct lpfc_mbox_ext_buf_ctx));
5231 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5232
da0436e9 5233 phba->max_vpi = LPFC_MAX_VPI;
67d12733 5234
da0436e9
JS		 5235 /* This will be set to correct value after the read_config mbox */
5236 phba->max_vports = 0;
3772a991 5237
da0436e9
JS		 5238 /* Program the default value of vlan_id and fc_map */
5239 phba->valid_vlan = 0;
5240 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5241 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5242 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 5243
2a76a283
JS		 5244 /*
5245 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5246 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5247 */
5248 if (!phba->sli.ring)
5249 phba->sli.ring = kzalloc(
67d12733 5250 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
2a76a283
JS		 5251 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5252 if (!phba->sli.ring)
5253 return -ENOMEM;
09294d46 5254
da0436e9 5255 /*
09294d46
JS		 5256 * It doesn't matter what family our adapter is in, we are
5257 * limited to 2 Pages, 512 SGEs, for our SGL.
5258 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5259 */
5260 max_buf_size = (2 * SLI4_PAGE_SIZE);
5261 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5262 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
09294d46 5263
da0436e9 5264 /*
96f7077f 5265 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
da0436e9 5266 * used to create the sg_dma_buf_pool must be dynamically calculated.
da0436e9 5267 */
96f7077f
JS		 5268
5269 if (phba->cfg_enable_bg) {
5270 /*
5271 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5272 * the FCP rsp, and a SGE for each. Sice we have no control
5273 * over how many protection data segments the SCSI Layer
5274 * will hand us (ie: there could be one for every block
5275 * in the IO), we just allocate enough SGEs to accomidate
5276 * our max amount and we need to limit lpfc_sg_seg_cnt to
5277 * minimize the risk of running out.
5278 */
5279 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5280 sizeof(struct fcp_rsp) + max_buf_size;
5281
5282 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5283 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5284
5285 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5286 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5287 } else {
5288 /*
5289 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5290 * the FCP rsp, a SGE for each, and a SGE for up to
5291 * cfg_sg_seg_cnt data segments.
5292 */
5293 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5294 sizeof(struct fcp_rsp) +
5295 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5296
5297 /* Total SGEs for scsi_sg_list */
5298 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5299 /*
5300 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5301 * to post 1 page for the SGL.
5302 */
085c647c 5303 }
acd6859b 5304
96f7077f
JS		 5305 /* Initialize the host templates with the updated values. */
5306 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5307 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5308
5309 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5310 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5311 else
5312 phba->cfg_sg_dma_buf_size =
5313 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5314
5315 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5316 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5317 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5318 phba->cfg_total_seg_cnt);
3772a991 5319
da0436e9
JS		 5320 /* Initialize buffer queue management fields */
5321 hbq_count = lpfc_sli_hbq_count();
5322 for (i = 0; i < hbq_count; ++i)
5323 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5324 INIT_LIST_HEAD(&phba->rb_pend_list);
5325 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5326 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 5327
da0436e9
JS		 5328 /*
5329 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5330 */
5331 /* Initialize the Abort scsi buffer list used by driver */
5332 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5333 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5334 /* This abort list used by worker thread */
5335 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 5336
da0436e9 5337 /*
6d368e53 5338 * Initialize driver internal slow-path work queues
da0436e9 5339 */
3772a991 5340
da0436e9
JS		 5341 /* Driver internel slow-path CQ Event pool */
5342 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5343 /* Response IOCB work queue list */
45ed1190 5344 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 5345 /* Asynchronous event CQ Event work queue list */
5346 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5347 /* Fast-path XRI aborted CQ Event work queue list */
5348 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5349 /* Slow-path XRI aborted CQ Event work queue list */
5350 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5351 /* Receive queue CQ Event work queue list */
5352 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5353
6d368e53
JS		 5354 /* Initialize extent block lists. */
5355 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5356 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5357 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5358 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5359
448193b5
JS		 5360 /* initialize optic_state to 0xFF */
5361 phba->sli4_hba.lnk_info.optic_state = 0xff;
5362
da0436e9
JS		 5363 /* Initialize the driver internal SLI layer lists. */
5364 lpfc_sli_setup(phba);
5365 lpfc_sli_queue_setup(phba);
3772a991 5366
da0436e9
JS		 5367 /* Allocate device driver memory */
5368 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5369 if (rc)
5370 return -ENOMEM;
5371
2fcee4bf
JS		 5372 /* IF Type 2 ports get initialized now. */
5373 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5374 LPFC_SLI_INTF_IF_TYPE_2) {
5375 rc = lpfc_pci_function_reset(phba);
5376 if (unlikely(rc))
5377 return -ENODEV;
946727dc 5378 phba->temp_sensor_support = 1;
2fcee4bf
JS		 5379 }
5380
da0436e9
JS		 5381 /* Create the bootstrap mailbox command */
5382 rc = lpfc_create_bootstrap_mbox(phba);
5383 if (unlikely(rc))
5384 goto out_free_mem;
5385
5386 /* Set up the host's endian order with the device. */
5387 rc = lpfc_setup_endian_order(phba);
5388 if (unlikely(rc))
5389 goto out_free_bsmbx;
5390
5391 /* Set up the hba's configuration parameters. */
5392 rc = lpfc_sli4_read_config(phba);
cff261f6
JS		 5393 if (unlikely(rc))
5394 goto out_free_bsmbx;
5395 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
da0436e9
JS		 5396 if (unlikely(rc))
5397 goto out_free_bsmbx;
5398
2fcee4bf
JS		 5399 /* IF Type 0 ports get initialized now. */
5400 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5401 LPFC_SLI_INTF_IF_TYPE_0) {
5402 rc = lpfc_pci_function_reset(phba);
5403 if (unlikely(rc))
5404 goto out_free_bsmbx;
5405 }
da0436e9 5406
cb5172ea
JS		 5407 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5408 GFP_KERNEL);
5409 if (!mboxq) {
5410 rc = -ENOMEM;
5411 goto out_free_bsmbx;
5412 }
5413
fedd3b7b 5414 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 5415 lpfc_supported_pages(mboxq);
5416 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 5417 if (!rc) {
5418 mqe = &mboxq->u.mqe;
5419 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5420 LPFC_MAX_SUPPORTED_PAGES);
5421 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5422 switch (pn_page[i]) {
5423 case LPFC_SLI4_PARAMETERS:
5424 phba->sli4_hba.pc_sli4_params.supported = 1;
5425 break;
5426 default:
5427 break;
5428 }
5429 }
5430 /* Read the port's SLI4 Parameters capabilities if supported. */
5431 if (phba->sli4_hba.pc_sli4_params.supported)
5432 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5433 if (rc) {
5434 mempool_free(mboxq, phba->mbox_mem_pool);
5435 rc = -EIO;
5436 goto out_free_bsmbx;
cb5172ea
JS		 5437 }
5438 }
65791f1f 5439
fedd3b7b
JS		 5440 /*
5441 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 5442 * If this call fails, it isn't critical unless the SLI4 parameters come
5443 * back in conflict.
fedd3b7b 5444 */
6d368e53
JS		 5445 rc = lpfc_get_sli4_parameters(phba, mboxq);
5446 if (rc) {
5447 if (phba->sli4_hba.extents_in_use &&
5448 phba->sli4_hba.rpi_hdrs_in_use) {
5449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450 "2999 Unsupported SLI4 Parameters "
5451 "Extents and RPI headers enabled.\n");
5452 goto out_free_bsmbx;
5453 }
5454 }
cb5172ea 5455 mempool_free(mboxq, phba->mbox_mem_pool);
1ba981fd
JS		 5456
5457 /* Verify OAS is supported */
5458 lpfc_sli4_oas_verify(phba);
5459 if (phba->cfg_fof)
5460 fof_vectors = 1;
5461
5350d872
JS		 5462 /* Verify all the SLI4 queues */
5463 rc = lpfc_sli4_queue_verify(phba);
da0436e9
JS		 5464 if (rc)
5465 goto out_free_bsmbx;
5466
5467 /* Create driver internal CQE event pool */
5468 rc = lpfc_sli4_cq_event_pool_create(phba);
5469 if (rc)
5350d872 5470 goto out_free_bsmbx;
da0436e9 5471
8a9d2e80
JS		 5472 /* Initialize sgl lists per host */
5473 lpfc_init_sgl_list(phba);
5474
5475 /* Allocate and initialize active sgl array */
da0436e9
JS		 5476 rc = lpfc_init_active_sgl_array(phba);
5477 if (rc) {
5478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5479 "1430 Failed to initialize sgl list.\n");
8a9d2e80 5480 goto out_destroy_cq_event_pool;
da0436e9 5481 }
da0436e9
JS		 5482 rc = lpfc_sli4_init_rpi_hdrs(phba);
5483 if (rc) {
5484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5485 "1432 Failed to initialize rpi headers.\n");
5486 goto out_free_active_sgl;
5487 }
5488
a93ff37a 5489 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 5490 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5491 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5492 GFP_KERNEL);
5493 if (!phba->fcf.fcf_rr_bmask) {
5494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5495 "2759 Failed allocate memory for FCF round "
5496 "robin failover bmask\n");
0558056c 5497 rc = -ENOMEM;
0c9ab6f5
JS		 5498 goto out_remove_rpi_hdrs;
5499 }
5500
67d12733
JS		 5501 phba->sli4_hba.fcp_eq_hdl =
5502 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
1ba981fd
JS		 5503 (fof_vectors + phba->cfg_fcp_io_channel)),
5504 GFP_KERNEL);
67d12733
JS		 5505 if (!phba->sli4_hba.fcp_eq_hdl) {
5506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5507 "2572 Failed allocate memory for "
5508 "fast-path per-EQ handle array\n");
5509 rc = -ENOMEM;
5510 goto out_free_fcf_rr_bmask;
da0436e9
JS		 5511 }
5512
5513 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
1ba981fd
JS		 5514 (fof_vectors +
5515 phba->cfg_fcp_io_channel)), GFP_KERNEL);
da0436e9
JS		 5516 if (!phba->sli4_hba.msix_entries) {
5517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5518 "2573 Failed allocate memory for msi-x "
5519 "interrupt vector entries\n");
0558056c 5520 rc = -ENOMEM;
da0436e9
JS		 5521 goto out_free_fcp_eq_hdl;
5522 }
5523
7bb03bbf
JS		 5524 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5525 phba->sli4_hba.num_present_cpu),
5526 GFP_KERNEL);
5527 if (!phba->sli4_hba.cpu_map) {
5528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5529 "3327 Failed allocate memory for msi-x "
5530 "interrupt vector mapping\n");
5531 rc = -ENOMEM;
5532 goto out_free_msix;
5533 }
b246de17
JS		 5534 if (lpfc_used_cpu == NULL) {
5535 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5536 GFP_KERNEL);
5537 if (!lpfc_used_cpu) {
5538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5539 "3335 Failed allocate memory for msi-x "
5540 "interrupt vector mapping\n");
5541 kfree(phba->sli4_hba.cpu_map);
5542 rc = -ENOMEM;
5543 goto out_free_msix;
5544 }
5545 for (i = 0; i < lpfc_present_cpu; i++)
5546 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5547 }
5548
7bb03bbf
JS		 5549 /* Initialize io channels for round robin */
5550 cpup = phba->sli4_hba.cpu_map;
5551 rc = 0;
5552 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5553 cpup->channel_id = rc;
5554 rc++;
5555 if (rc >= phba->cfg_fcp_io_channel)
5556 rc = 0;
5557 }
5558
912e3acd
JS		 5559 /*
5560 * Enable sr-iov virtual functions if supported and configured
5561 * through the module parameter.
5562 */
5563 if (phba->cfg_sriov_nr_virtfn > 0) {
5564 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5565 phba->cfg_sriov_nr_virtfn);
5566 if (rc) {
5567 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5568 "3020 Requested number of SR-IOV "
5569 "virtual functions (%d) is not "
5570 "supported\n",
5571 phba->cfg_sriov_nr_virtfn);
5572 phba->cfg_sriov_nr_virtfn = 0;
5573 }
5574 }
5575
5248a749 5576 return 0;
da0436e9 5577
7bb03bbf
JS		 5578out_free_msix:
5579 kfree(phba->sli4_hba.msix_entries);
da0436e9
JS		 5580out_free_fcp_eq_hdl:
5581 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 5582out_free_fcf_rr_bmask:
5583 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 5584out_remove_rpi_hdrs:
5585 lpfc_sli4_remove_rpi_hdrs(phba);
5586out_free_active_sgl:
5587 lpfc_free_active_sgl(phba);
da0436e9
JS		 5588out_destroy_cq_event_pool:
5589 lpfc_sli4_cq_event_pool_destroy(phba);
da0436e9
JS		 5590out_free_bsmbx:
5591 lpfc_destroy_bootstrap_mbox(phba);
5592out_free_mem:
5593 lpfc_mem_free(phba);
5594 return rc;
5595}
5596
5597/**
5598 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5599 * @phba: pointer to lpfc hba data structure.
5600 *
5601 * This routine is invoked to unset the driver internal resources set up
5602 * specific for supporting the SLI-4 HBA device it attached to.
5603 **/
5604static void
5605lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5606{
5607 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5608
7bb03bbf
JS		 5609 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5610 kfree(phba->sli4_hba.cpu_map);
5611 phba->sli4_hba.num_present_cpu = 0;
5612 phba->sli4_hba.num_online_cpu = 0;
76fd07a6 5613 phba->sli4_hba.curr_disp_cpu = 0;
7bb03bbf 5614
da0436e9
JS		 5615 /* Free memory allocated for msi-x interrupt vector entries */
5616 kfree(phba->sli4_hba.msix_entries);
5617
5618 /* Free memory allocated for fast-path work queue handles */
5619 kfree(phba->sli4_hba.fcp_eq_hdl);
5620
5621 /* Free the allocated rpi headers. */
5622 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 5623 lpfc_sli4_remove_rpis(phba);
da0436e9 5624
0c9ab6f5
JS		 5625 /* Free eligible FCF index bmask */
5626 kfree(phba->fcf.fcf_rr_bmask);
5627
da0436e9
JS		 5628 /* Free the ELS sgl list */
5629 lpfc_free_active_sgl(phba);
8a9d2e80 5630 lpfc_free_els_sgl_list(phba);
da0436e9 5631
da0436e9
JS		 5632 /* Free the completion queue EQ event pool */
5633 lpfc_sli4_cq_event_release_all(phba);
5634 lpfc_sli4_cq_event_pool_destroy(phba);
5635
6d368e53
JS		 5636 /* Release resource identifiers. */
5637 lpfc_sli4_dealloc_resource_identifiers(phba);
5638
da0436e9
JS		 5639 /* Free the bsmbx region. */
5640 lpfc_destroy_bootstrap_mbox(phba);
5641
5642 /* Free the SLI Layer memory with SLI4 HBAs */
5643 lpfc_mem_free_all(phba);
5644
5645 /* Free the current connect table */
5646 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 5647 &phba->fcf_conn_rec_list, list) {
5648 list_del_init(&conn_entry->list);
da0436e9 5649 kfree(conn_entry);
4d9ab994 5650 }
da0436e9
JS		 5651
5652 return;
5653}
5654
5655/**
25985edc 5656 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 5657 * @phba: The hba struct for which this call is being executed.
5658 * @dev_grp: The HBA PCI-Device group number.
5659 *
5660 * This routine sets up the device INIT interface API function jump table
5661 * in @phba struct.
5662 *
5663 * Returns: 0 - success, -ENODEV - failure.
5664 **/
5665int
5666lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5667{
84d1b006
JS		 5668 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5669 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 5670 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 5671 switch (dev_grp) {
5672 case LPFC_PCI_DEV_LP:
5673 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5674 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5675 phba->lpfc_stop_port = lpfc_stop_port_s3;
5676 break;
5677 case LPFC_PCI_DEV_OC:
5678 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5679 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5680 phba->lpfc_stop_port = lpfc_stop_port_s4;
5681 break;
5682 default:
5683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5684 "1431 Invalid HBA PCI-device group: 0x%x\n",
5685 dev_grp);
5686 return -ENODEV;
5687 break;
5688 }
5689 return 0;
5690}
5691
5692/**
5693 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5694 * @phba: pointer to lpfc hba data structure.
5695 *
5696 * This routine is invoked to set up the driver internal resources before the
5697 * device specific resource setup to support the HBA device it attached to.
5698 *
5699 * Return codes
af901ca1 5700 * 0 - successful
da0436e9
JS		 5701 * other values - error
5702 **/
5703static int
5704lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5705{
5706 /*
5707 * Driver resources common to all SLI revisions
5708 */
5709 atomic_set(&phba->fast_event_count, 0);
5710 spin_lock_init(&phba->hbalock);
5711
5712 /* Initialize ndlp management spinlock */
5713 spin_lock_init(&phba->ndlp_lock);
5714
5715 INIT_LIST_HEAD(&phba->port_list);
5716 INIT_LIST_HEAD(&phba->work_list);
5717 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5718
5719 /* Initialize the wait queue head for the kernel thread */
5720 init_waitqueue_head(&phba->work_waitq);
5721
5722 /* Initialize the scsi buffer list used by driver for scsi IO */
a40fc5f0
JS		 5723 spin_lock_init(&phba->scsi_buf_list_get_lock);
5724 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5725 spin_lock_init(&phba->scsi_buf_list_put_lock);
5726 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
da0436e9
JS		 5727
5728 /* Initialize the fabric iocb list */
5729 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5730
5731 /* Initialize list to save ELS buffers */
5732 INIT_LIST_HEAD(&phba->elsbuf);
5733
5734 /* Initialize FCF connection rec list */
5735 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5736
1ba981fd
JS		 5737 /* Initialize OAS configuration list */
5738 spin_lock_init(&phba->devicelock);
5739 INIT_LIST_HEAD(&phba->luns);
5740
da0436e9
JS		 5741 return 0;
5742}
5743
5744/**
5745 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5746 * @phba: pointer to lpfc hba data structure.
5747 *
5748 * This routine is invoked to set up the driver internal resources after the
5749 * device specific resource setup to support the HBA device it attached to.
5750 *
5751 * Return codes
af901ca1 5752 * 0 - successful
da0436e9
JS		 5753 * other values - error
5754 **/
5755static int
5756lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5757{
5758 int error;
5759
5760 /* Startup the kernel thread for this host adapter. */
5761 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5762 "lpfc_worker_%d", phba->brd_no);
5763 if (IS_ERR(phba->worker_thread)) {
5764 error = PTR_ERR(phba->worker_thread);
5765 return error;
3772a991
JS		 5766 }
5767
5768 return 0;
5769}
5770
5771/**
5772 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5773 * @phba: pointer to lpfc hba data structure.
5774 *
5775 * This routine is invoked to unset the driver internal resources set up after
5776 * the device specific resource setup for supporting the HBA device it
5777 * attached to.
5778 **/
5779static void
5780lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5781{
5782 /* Stop kernel worker thread */
5783 kthread_stop(phba->worker_thread);
5784}
5785
5786/**
5787 * lpfc_free_iocb_list - Free iocb list.
5788 * @phba: pointer to lpfc hba data structure.
5789 *
5790 * This routine is invoked to free the driver's IOCB list and memory.
5791 **/
5792static void
5793lpfc_free_iocb_list(struct lpfc_hba *phba)
5794{
5795 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5796
5797 spin_lock_irq(&phba->hbalock);
5798 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5799 &phba->lpfc_iocb_list, list) {
5800 list_del(&iocbq_entry->list);
5801 kfree(iocbq_entry);
5802 phba->total_iocbq_bufs--;
98c9ea5c 5803 }
3772a991
JS		 5804 spin_unlock_irq(&phba->hbalock);
5805
5806 return;
5807}
5808
5809/**
5810 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5811 * @phba: pointer to lpfc hba data structure.
5812 *
5813 * This routine is invoked to allocate and initizlize the driver's IOCB
5814 * list and set up the IOCB tag array accordingly.
5815 *
5816 * Return codes
af901ca1 5817 * 0 - successful
3772a991
JS		 5818 * other values - error
5819 **/
5820static int
5821lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5822{
5823 struct lpfc_iocbq *iocbq_entry = NULL;
5824 uint16_t iotag;
5825 int i;
dea3101e 5826
5827 /* Initialize and populate the iocb list per host. */
5828 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 5829 for (i = 0; i < iocb_count; i++) {
dd00cc48 5830 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 5831 if (iocbq_entry == NULL) {
5832 printk(KERN_ERR "%s: only allocated %d iocbs of "
5833 "expected %d count. Unloading driver.\n",
cadbd4a5 5834 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 5835 goto out_free_iocbq;
5836 }
5837
604a3e30
JB		 5838 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5839 if (iotag == 0) {
3772a991 5840 kfree(iocbq_entry);
604a3e30 5841 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 5842 "Unloading driver.\n", __func__);
604a3e30
JB		 5843 goto out_free_iocbq;
5844 }
6d368e53 5845 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 5846 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 5847
5848 spin_lock_irq(&phba->hbalock);
dea3101e 5849 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5850 phba->total_iocbq_bufs++;
2e0fef85 5851 spin_unlock_irq(&phba->hbalock);
dea3101e 5852 }
5853
3772a991 5854 return 0;
dea3101e 5855
3772a991
JS		 5856out_free_iocbq:
5857 lpfc_free_iocb_list(phba);
dea3101e 5858
3772a991
JS		 5859 return -ENOMEM;
5860}
5e9d9b82 5861
3772a991 5862/**
8a9d2e80 5863 * lpfc_free_sgl_list - Free a given sgl list.
da0436e9 5864 * @phba: pointer to lpfc hba data structure.
8a9d2e80 5865 * @sglq_list: pointer to the head of sgl list.
3772a991 5866 *
8a9d2e80 5867 * This routine is invoked to free a give sgl list and memory.
3772a991 5868 **/
8a9d2e80
JS		 5869void
5870lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
3772a991 5871{
da0436e9 5872 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8a9d2e80
JS		 5873
5874 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5875 list_del(&sglq_entry->list);
5876 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5877 kfree(sglq_entry);
5878 }
5879}
5880
5881/**
5882 * lpfc_free_els_sgl_list - Free els sgl list.
5883 * @phba: pointer to lpfc hba data structure.
5884 *
5885 * This routine is invoked to free the driver's els sgl list and memory.
5886 **/
5887static void
5888lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5889{
da0436e9 5890 LIST_HEAD(sglq_list);
dafe8cea 5891 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
dea3101e 5892
8a9d2e80 5893 /* Retrieve all els sgls from driver list */
da0436e9 5894 spin_lock_irq(&phba->hbalock);
dafe8cea 5895 spin_lock(&pring->ring_lock);
da0436e9 5896 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
dafe8cea 5897 spin_unlock(&pring->ring_lock);
da0436e9 5898 spin_unlock_irq(&phba->hbalock);
dea3101e 5899
8a9d2e80
JS		 5900 /* Now free the sgl list */
5901 lpfc_free_sgl_list(phba, &sglq_list);
da0436e9 5902}
92d7f7b0 5903
da0436e9
JS		 5904/**
5905 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5906 * @phba: pointer to lpfc hba data structure.
5907 *
5908 * This routine is invoked to allocate the driver's active sgl memory.
5909 * This array will hold the sglq_entry's for active IOs.
5910 **/
5911static int
5912lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5913{
5914 int size;
5915 size = sizeof(struct lpfc_sglq *);
5916 size *= phba->sli4_hba.max_cfg_param.max_xri;
5917
5918 phba->sli4_hba.lpfc_sglq_active_list =
5919 kzalloc(size, GFP_KERNEL);
5920 if (!phba->sli4_hba.lpfc_sglq_active_list)
5921 return -ENOMEM;
5922 return 0;
3772a991
JS		 5923}
5924
5925/**
da0436e9 5926 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 5927 * @phba: pointer to lpfc hba data structure.
5928 *
da0436e9
JS		 5929 * This routine is invoked to walk through the array of active sglq entries
5930 * and free all of the resources.
5931 * This is just a place holder for now.
3772a991
JS		 5932 **/
5933static void
da0436e9 5934lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 5935{
da0436e9 5936 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 5937}
5938
5939/**
da0436e9 5940 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 5941 * @phba: pointer to lpfc hba data structure.
5942 *
da0436e9
JS		 5943 * This routine is invoked to allocate and initizlize the driver's sgl
5944 * list and set up the sgl xritag tag array accordingly.
3772a991 5945 *
3772a991 5946 **/
8a9d2e80 5947static void
da0436e9 5948lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 5949{
da0436e9
JS		 5950 /* Initialize and populate the sglq list per host/VF. */
5951 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5952 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5953
8a9d2e80
JS		 5954 /* els xri-sgl book keeping */
5955 phba->sli4_hba.els_xri_cnt = 0;
0ff10d46 5956
8a9d2e80 5957 /* scsi xri-buffer book keeping */
da0436e9 5958 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 5959}
5960
5961/**
5962 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5963 * @phba: pointer to lpfc hba data structure.
5964 *
5965 * This routine is invoked to post rpi header templates to the
88a2cfbb 5966 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5967 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5968 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5969 * and should be called only when interrupts are disabled.
da0436e9
JS		 5970 *
5971 * Return codes
af901ca1 5972 * 0 - successful
88a2cfbb 5973 * -ERROR - otherwise.
da0436e9
JS		 5974 **/
5975int
5976lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5977{
5978 int rc = 0;
da0436e9
JS		 5979 struct lpfc_rpi_hdr *rpi_hdr;
5980
5981 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
ff78d8f9 5982 if (!phba->sli4_hba.rpi_hdrs_in_use)
6d368e53 5983 return rc;
6d368e53
JS		 5984 if (phba->sli4_hba.extents_in_use)
5985 return -EIO;
da0436e9
JS		 5986
5987 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5988 if (!rpi_hdr) {
5989 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5990 "0391 Error during rpi post operation\n");
5991 lpfc_sli4_remove_rpis(phba);
5992 rc = -ENODEV;
5993 }
5994
5995 return rc;
5996}
5997
5998/**
5999 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6000 * @phba: pointer to lpfc hba data structure.
6001 *
6002 * This routine is invoked to allocate a single 4KB memory region to
6003 * support rpis and stores them in the phba. This single region
6004 * provides support for up to 64 rpis. The region is used globally
6005 * by the device.
6006 *
6007 * Returns:
6008 * A valid rpi hdr on success.
6009 * A NULL pointer on any failure.
6010 **/
6011struct lpfc_rpi_hdr *
6012lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6013{
6014 uint16_t rpi_limit, curr_rpi_range;
6015 struct lpfc_dmabuf *dmabuf;
6016 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 6017 uint32_t rpi_count;
da0436e9 6018
6d368e53
JS		 6019 /*
6020 * If the SLI4 port supports extents, posting the rpi header isn't
6021 * required. Set the expected maximum count and let the actual value
6022 * get set when extents are fully allocated.
6023 */
6024 if (!phba->sli4_hba.rpi_hdrs_in_use)
6025 return NULL;
6026 if (phba->sli4_hba.extents_in_use)
6027 return NULL;
6028
6029 /* The limit on the logical index is just the max_rpi count. */
da0436e9 6030 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 6031 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 6032
6033 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 6034 /*
6035 * Establish the starting RPI in this header block. The starting
6036 * rpi is normalized to a zero base because the physical rpi is
6037 * port based.
6038 */
97f2ecf1 6039 curr_rpi_range = phba->sli4_hba.next_rpi;
da0436e9
JS		 6040 spin_unlock_irq(&phba->hbalock);
6041
6042 /*
6043 * The port has a limited number of rpis. The increment here
6044 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6045 * and to allow the full max_rpi range per port.
6046 */
6047 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 6048 rpi_count = rpi_limit - curr_rpi_range;
6049 else
6050 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 6051
6d368e53
JS		 6052 if (!rpi_count)
6053 return NULL;
da0436e9
JS		 6054 /*
6055 * First allocate the protocol header region for the port. The
6056 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6057 */
6058 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6059 if (!dmabuf)
6060 return NULL;
6061
1aee383d
JP		 6062 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6063 LPFC_HDR_TEMPLATE_SIZE,
6064 &dmabuf->phys, GFP_KERNEL);
da0436e9
JS		 6065 if (!dmabuf->virt) {
6066 rpi_hdr = NULL;
6067 goto err_free_dmabuf;
6068 }
6069
da0436e9
JS		 6070 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6071 rpi_hdr = NULL;
6072 goto err_free_coherent;
6073 }
6074
6075 /* Save the rpi header data for cleanup later. */
6076 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6077 if (!rpi_hdr)
6078 goto err_free_coherent;
6079
6080 rpi_hdr->dmabuf = dmabuf;
6081 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6082 rpi_hdr->page_count = 1;
6083 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 6084
6085 /* The rpi_hdr stores the logical index only. */
6086 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 6087 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6088
6089 /*
6d368e53
JS		 6090 * The next_rpi stores the next logical module-64 rpi value used
6091 * to post physical rpis in subsequent rpi postings.
da0436e9 6092 */
9589b062 6093 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 6094 spin_unlock_irq(&phba->hbalock);
6095 return rpi_hdr;
6096
6097 err_free_coherent:
6098 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6099 dmabuf->virt, dmabuf->phys);
6100 err_free_dmabuf:
6101 kfree(dmabuf);
6102 return NULL;
6103}
6104
6105/**
6106 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6107 * @phba: pointer to lpfc hba data structure.
6108 *
6109 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 6110 * to support rpis for SLI4 ports not supporting extents. This routine
6111 * presumes the caller has released all rpis consumed by fabric or port
6112 * logins and is prepared to have the header pages removed.
da0436e9
JS		 6113 **/
6114void
6115lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6116{
6117 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6118
6d368e53
JS		 6119 if (!phba->sli4_hba.rpi_hdrs_in_use)
6120 goto exit;
6121
da0436e9
JS		 6122 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6123 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6124 list_del(&rpi_hdr->list);
6125 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6126 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6127 kfree(rpi_hdr->dmabuf);
6128 kfree(rpi_hdr);
6129 }
6d368e53
JS		 6130 exit:
6131 /* There are no rpis available to the port now. */
6132 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 6133}
6134
6135/**
6136 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6137 * @pdev: pointer to pci device data structure.
6138 *
6139 * This routine is invoked to allocate the driver hba data structure for an
6140 * HBA device. If the allocation is successful, the phba reference to the
6141 * PCI device data structure is set.
6142 *
6143 * Return codes
af901ca1 6144 * pointer to @phba - successful
da0436e9
JS		 6145 * NULL - error
6146 **/
6147static struct lpfc_hba *
6148lpfc_hba_alloc(struct pci_dev *pdev)
6149{
6150 struct lpfc_hba *phba;
6151
6152 /* Allocate memory for HBA structure */
6153 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6154 if (!phba) {
e34ccdfe 6155 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 6156 return NULL;
6157 }
6158
6159 /* Set reference to PCI device in HBA structure */
6160 phba->pcidev = pdev;
6161
6162 /* Assign an unused board number */
6163 phba->brd_no = lpfc_get_instance();
6164 if (phba->brd_no < 0) {
6165 kfree(phba);
6166 return NULL;
6167 }
65791f1f 6168 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
da0436e9 6169
4fede78f 6170 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 6171 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6172
da0436e9
JS		 6173 return phba;
6174}
6175
6176/**
6177 * lpfc_hba_free - Free driver hba data structure with a device.
6178 * @phba: pointer to lpfc hba data structure.
6179 *
6180 * This routine is invoked to free the driver hba data structure with an
6181 * HBA device.
6182 **/
6183static void
6184lpfc_hba_free(struct lpfc_hba *phba)
6185{
6186 /* Release the driver assigned board number */
6187 idr_remove(&lpfc_hba_index, phba->brd_no);
6188
2a76a283
JS		 6189 /* Free memory allocated with sli rings */
6190 kfree(phba->sli.ring);
6191 phba->sli.ring = NULL;
6192
da0436e9
JS		 6193 kfree(phba);
6194 return;
6195}
6196
6197/**
6198 * lpfc_create_shost - Create hba physical port with associated scsi host.
6199 * @phba: pointer to lpfc hba data structure.
6200 *
6201 * This routine is invoked to create HBA physical port and associate a SCSI
6202 * host with it.
6203 *
6204 * Return codes
af901ca1 6205 * 0 - successful
da0436e9
JS		 6206 * other values - error
6207 **/
6208static int
6209lpfc_create_shost(struct lpfc_hba *phba)
6210{
6211 struct lpfc_vport *vport;
6212 struct Scsi_Host *shost;
6213
6214 /* Initialize HBA FC structure */
6215 phba->fc_edtov = FF_DEF_EDTOV;
6216 phba->fc_ratov = FF_DEF_RATOV;
6217 phba->fc_altov = FF_DEF_ALTOV;
6218 phba->fc_arbtov = FF_DEF_ARBTOV;
6219
d7c47992 6220 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 6221 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6222 if (!vport)
6223 return -ENODEV;
6224
6225 shost = lpfc_shost_from_vport(vport);
6226 phba->pport = vport;
6227 lpfc_debugfs_initialize(vport);
6228 /* Put reference to SCSI host to driver's device private data */
6229 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 6230
4258e98e
JS		 6231 /*
6232 * At this point we are fully registered with PSA. In addition,
6233 * any initial discovery should be completed.
6234 */
6235 vport->load_flag |= FC_ALLOW_FDMI;
8663cbbe
JS		 6236 if (phba->cfg_enable_SmartSAN ||
6237 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
4258e98e
JS		 6238
6239 /* Setup appropriate attribute masks */
6240 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
8663cbbe 6241 if (phba->cfg_enable_SmartSAN)
4258e98e
JS		 6242 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6243 else
6244 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6245 }
3772a991
JS		 6246 return 0;
6247}
db2378e0 6248
3772a991
JS		 6249/**
6250 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6251 * @phba: pointer to lpfc hba data structure.
6252 *
6253 * This routine is invoked to destroy HBA physical port and the associated
6254 * SCSI host.
6255 **/
6256static void
6257lpfc_destroy_shost(struct lpfc_hba *phba)
6258{
6259 struct lpfc_vport *vport = phba->pport;
6260
6261 /* Destroy physical port that associated with the SCSI host */
6262 destroy_port(vport);
6263
6264 return;
6265}
6266
6267/**
6268 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6269 * @phba: pointer to lpfc hba data structure.
6270 * @shost: the shost to be used to detect Block guard settings.
6271 *
6272 * This routine sets up the local Block guard protocol settings for @shost.
6273 * This routine also allocates memory for debugging bg buffers.
6274 **/
6275static void
6276lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6277{
bbeb79b9
JS		 6278 uint32_t old_mask;
6279 uint32_t old_guard;
6280
3772a991
JS		 6281 int pagecnt = 10;
6282 if (lpfc_prot_mask && lpfc_prot_guard) {
6283 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6284 "1478 Registering BlockGuard with the "
6285 "SCSI layer\n");
bbeb79b9
JS		 6286
6287 old_mask = lpfc_prot_mask;
6288 old_guard = lpfc_prot_guard;
6289
6290 /* Only allow supported values */
6291 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6292 SHOST_DIX_TYPE0_PROTECTION |
6293 SHOST_DIX_TYPE1_PROTECTION);
6294 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6295
6296 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6297 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6298 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6299
6300 if (lpfc_prot_mask && lpfc_prot_guard) {
6301 if ((old_mask != lpfc_prot_mask) ||
6302 (old_guard != lpfc_prot_guard))
6303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6304 "1475 Registering BlockGuard with the "
6305 "SCSI layer: mask %d guard %d\n",
6306 lpfc_prot_mask, lpfc_prot_guard);
6307
6308 scsi_host_set_prot(shost, lpfc_prot_mask);
6309 scsi_host_set_guard(shost, lpfc_prot_guard);
6310 } else
6311 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6312 "1479 Not Registering BlockGuard with the SCSI "
6313 "layer, Bad protection parameters: %d %d\n",
6314 old_mask, old_guard);
3772a991 6315 }
bbeb79b9 6316
3772a991
JS		 6317 if (!_dump_buf_data) {
6318 while (pagecnt) {
6319 spin_lock_init(&_dump_buf_lock);
6320 _dump_buf_data =
6321 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6322 if (_dump_buf_data) {
6a9c52cf
JS		 6323 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6324 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 6325 "_dump_buf_data at 0x%p\n",
6326 (1 << pagecnt), _dump_buf_data);
6327 _dump_buf_data_order = pagecnt;
6328 memset(_dump_buf_data, 0,
6329 ((1 << PAGE_SHIFT) << pagecnt));
6330 break;
6331 } else
6332 --pagecnt;
6333 }
6334 if (!_dump_buf_data_order)
6a9c52cf
JS		 6335 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6336 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 6337 "memory for hexdump\n");
6338 } else
6a9c52cf
JS		 6339 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6340 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 6341 "\n", _dump_buf_data);
6342 if (!_dump_buf_dif) {
6343 while (pagecnt) {
6344 _dump_buf_dif =
6345 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6346 if (_dump_buf_dif) {
6a9c52cf
JS		 6347 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6348 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 6349 "_dump_buf_dif at 0x%p\n",
6350 (1 << pagecnt), _dump_buf_dif);
6351 _dump_buf_dif_order = pagecnt;
6352 memset(_dump_buf_dif, 0,
6353 ((1 << PAGE_SHIFT) << pagecnt));
6354 break;
6355 } else
6356 --pagecnt;
6357 }
6358 if (!_dump_buf_dif_order)
6a9c52cf
JS		 6359 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6360 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 6361 "memory for hexdump\n");
6362 } else
6a9c52cf
JS		 6363 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6364 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 6365 _dump_buf_dif);
6366}
6367
6368/**
6369 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6370 * @phba: pointer to lpfc hba data structure.
6371 *
6372 * This routine is invoked to perform all the necessary post initialization
6373 * setup for the device.
6374 **/
6375static void
6376lpfc_post_init_setup(struct lpfc_hba *phba)
6377{
6378 struct Scsi_Host *shost;
6379 struct lpfc_adapter_event_header adapter_event;
6380
6381 /* Get the default values for Model Name and Description */
6382 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6383
6384 /*
6385 * hba setup may have changed the hba_queue_depth so we need to
6386 * adjust the value of can_queue.
6387 */
6388 shost = pci_get_drvdata(phba->pcidev);
6389 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6390 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6391 lpfc_setup_bg(phba, shost);
6392
6393 lpfc_host_attrib_init(shost);
6394
6395 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6396 spin_lock_irq(shost->host_lock);
6397 lpfc_poll_start_timer(phba);
6398 spin_unlock_irq(shost->host_lock);
6399 }
6400
6401 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6402 "0428 Perform SCSI scan\n");
6403 /* Send board arrival event to upper layer */
6404 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6405 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6406 fc_host_post_vendor_event(shost, fc_get_event_number(),
6407 sizeof(adapter_event),
6408 (char *) &adapter_event,
6409 LPFC_NL_VENDOR_ID);
6410 return;
6411}
6412
6413/**
6414 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6415 * @phba: pointer to lpfc hba data structure.
6416 *
6417 * This routine is invoked to set up the PCI device memory space for device
6418 * with SLI-3 interface spec.
6419 *
6420 * Return codes
af901ca1 6421 * 0 - successful
3772a991
JS		 6422 * other values - error
6423 **/
6424static int
6425lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6426{
6427 struct pci_dev *pdev;
6428 unsigned long bar0map_len, bar2map_len;
6429 int i, hbq_count;
6430 void *ptr;
6431 int error = -ENODEV;
6432
6433 /* Obtain PCI device reference */
6434 if (!phba->pcidev)
6435 return error;
6436 else
6437 pdev = phba->pcidev;
6438
6439 /* Set the device DMA mask size */
8e68597d
MR		 6440 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6441 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6442 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6443 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 6444 return error;
8e68597d
MR		 6445 }
6446 }
3772a991
JS		 6447
6448 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6449 * required by each mapping.
6450 */
6451 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6452 bar0map_len = pci_resource_len(pdev, 0);
6453
6454 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6455 bar2map_len = pci_resource_len(pdev, 2);
6456
6457 /* Map HBA SLIM to a kernel virtual address. */
6458 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6459 if (!phba->slim_memmap_p) {
6460 dev_printk(KERN_ERR, &pdev->dev,
6461 "ioremap failed for SLIM memory.\n");
6462 goto out;
6463 }
6464
6465 /* Map HBA Control Registers to a kernel virtual address. */
6466 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6467 if (!phba->ctrl_regs_memmap_p) {
6468 dev_printk(KERN_ERR, &pdev->dev,
6469 "ioremap failed for HBA control registers.\n");
6470 goto out_iounmap_slim;
6471 }
6472
6473 /* Allocate memory for SLI-2 structures */
1aee383d
JP		 6474 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6475 &phba->slim2p.phys, GFP_KERNEL);
3772a991
JS		 6476 if (!phba->slim2p.virt)
6477 goto out_iounmap;
6478
3772a991 6479 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 6480 phba->mbox_ext = (phba->slim2p.virt +
6481 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 6482 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6483 phba->IOCBs = (phba->slim2p.virt +
6484 offsetof(struct lpfc_sli2_slim, IOCBs));
6485
6486 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6487 lpfc_sli_hbq_size(),
6488 &phba->hbqslimp.phys,
6489 GFP_KERNEL);
6490 if (!phba->hbqslimp.virt)
6491 goto out_free_slim;
6492
6493 hbq_count = lpfc_sli_hbq_count();
6494 ptr = phba->hbqslimp.virt;
6495 for (i = 0; i < hbq_count; ++i) {
6496 phba->hbqs[i].hbq_virt = ptr;
6497 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6498 ptr += (lpfc_hbq_defs[i]->entry_count *
6499 sizeof(struct lpfc_hbq_entry));
6500 }
6501 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6502 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6503
6504 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6505
6506 INIT_LIST_HEAD(&phba->rb_pend_list);
6507
6508 phba->MBslimaddr = phba->slim_memmap_p;
6509 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6510 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6511 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6512 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6513
6514 return 0;
6515
6516out_free_slim:
6517 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6518 phba->slim2p.virt, phba->slim2p.phys);
6519out_iounmap:
6520 iounmap(phba->ctrl_regs_memmap_p);
6521out_iounmap_slim:
6522 iounmap(phba->slim_memmap_p);
6523out:
6524 return error;
6525}
6526
6527/**
6528 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6529 * @phba: pointer to lpfc hba data structure.
6530 *
6531 * This routine is invoked to unset the PCI device memory space for device
6532 * with SLI-3 interface spec.
6533 **/
6534static void
6535lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6536{
6537 struct pci_dev *pdev;
6538
6539 /* Obtain PCI device reference */
6540 if (!phba->pcidev)
6541 return;
6542 else
6543 pdev = phba->pcidev;
6544
6545 /* Free coherent DMA memory allocated */
6546 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6547 phba->hbqslimp.virt, phba->hbqslimp.phys);
6548 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6549 phba->slim2p.virt, phba->slim2p.phys);
6550
6551 /* I/O memory unmap */
6552 iounmap(phba->ctrl_regs_memmap_p);
6553 iounmap(phba->slim_memmap_p);
6554
6555 return;
6556}
6557
6558/**
da0436e9 6559 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 6560 * @phba: pointer to lpfc hba data structure.
6561 *
da0436e9
JS		 6562 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6563 * done and check status.
3772a991 6564 *
da0436e9 6565 * Return 0 if successful, otherwise -ENODEV.
3772a991 6566 **/
da0436e9
JS		 6567int
6568lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 6569{
2fcee4bf
JS		 6570 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6571 struct lpfc_register reg_data;
6572 int i, port_error = 0;
6573 uint32_t if_type;
3772a991 6574
9940b97b
JS		 6575 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6576 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 6577 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 6578 return -ENODEV;
3772a991 6579
da0436e9
JS		 6580 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6581 for (i = 0; i < 3000; i++) {
9940b97b
JS		 6582 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6583 &portsmphr_reg.word0) ||
6584 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 6585 /* Port has a fatal POST error, break out */
da0436e9
JS		 6586 port_error = -ENODEV;
6587 break;
6588 }
2fcee4bf
JS		 6589 if (LPFC_POST_STAGE_PORT_READY ==
6590 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 6591 break;
da0436e9 6592 msleep(10);
3772a991
JS		 6593 }
6594
2fcee4bf
JS		 6595 /*
6596 * If there was a port error during POST, then don't proceed with
6597 * other register reads as the data may not be valid. Just exit.
6598 */
6599 if (port_error) {
da0436e9 6600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 6601 "1408 Port Failed POST - portsmphr=0x%x, "
6602 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6603 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6604 portsmphr_reg.word0,
6605 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6606 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6607 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6608 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6609 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6610 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6611 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6612 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6613 } else {
28baac74 6614 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 6615 "2534 Device Info: SLIFamily=0x%x, "
6616 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6617 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 6618 bf_get(lpfc_sli_intf_sli_family,
6619 &phba->sli4_hba.sli_intf),
6620 bf_get(lpfc_sli_intf_slirev,
6621 &phba->sli4_hba.sli_intf),
085c647c
JS		 6622 bf_get(lpfc_sli_intf_if_type,
6623 &phba->sli4_hba.sli_intf),
6624 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 6625 &phba->sli4_hba.sli_intf),
085c647c
JS		 6626 bf_get(lpfc_sli_intf_sli_hint2,
6627 &phba->sli4_hba.sli_intf),
6628 bf_get(lpfc_sli_intf_func_type,
28baac74 6629 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 6630 /*
6631 * Check for other Port errors during the initialization
6632 * process. Fail the load if the port did not come up
6633 * correctly.
6634 */
6635 if_type = bf_get(lpfc_sli_intf_if_type,
6636 &phba->sli4_hba.sli_intf);
6637 switch (if_type) {
6638 case LPFC_SLI_INTF_IF_TYPE_0:
6639 phba->sli4_hba.ue_mask_lo =
6640 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6641 phba->sli4_hba.ue_mask_hi =
6642 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6643 uerrlo_reg.word0 =
6644 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6645 uerrhi_reg.word0 =
6646 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6647 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6648 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6650 "1422 Unrecoverable Error "
6651 "Detected during POST "
6652 "uerr_lo_reg=0x%x, "
6653 "uerr_hi_reg=0x%x, "
6654 "ue_mask_lo_reg=0x%x, "
6655 "ue_mask_hi_reg=0x%x\n",
6656 uerrlo_reg.word0,
6657 uerrhi_reg.word0,
6658 phba->sli4_hba.ue_mask_lo,
6659 phba->sli4_hba.ue_mask_hi);
6660 port_error = -ENODEV;
6661 }
6662 break;
6663 case LPFC_SLI_INTF_IF_TYPE_2:
6664 /* Final checks. The port status should be clean. */
9940b97b
JS		 6665 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6666 &reg_data.word0) ||
0558056c
JS		 6667 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6668 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 6669 phba->work_status[0] =
6670 readl(phba->sli4_hba.u.if_type2.
6671 ERR1regaddr);
6672 phba->work_status[1] =
6673 readl(phba->sli4_hba.u.if_type2.
6674 ERR2regaddr);
6675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd
JS		 6676 "2888 Unrecoverable port error "
6677 "following POST: port status reg "
6678 "0x%x, port_smphr reg 0x%x, "
2fcee4bf
JS		 6679 "error 1=0x%x, error 2=0x%x\n",
6680 reg_data.word0,
6681 portsmphr_reg.word0,
6682 phba->work_status[0],
6683 phba->work_status[1]);
6684 port_error = -ENODEV;
6685 }
6686 break;
6687 case LPFC_SLI_INTF_IF_TYPE_1:
6688 default:
6689 break;
6690 }
28baac74 6691 }
da0436e9
JS		 6692 return port_error;
6693}
3772a991 6694
da0436e9
JS		 6695/**
6696 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6697 * @phba: pointer to lpfc hba data structure.
2fcee4bf 6698 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 6699 *
6700 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6701 * memory map.
6702 **/
6703static void
2fcee4bf
JS		 6704lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6705{
6706 switch (if_type) {
6707 case LPFC_SLI_INTF_IF_TYPE_0:
6708 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6709 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6710 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6711 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6712 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6713 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6714 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6715 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6716 phba->sli4_hba.SLIINTFregaddr =
6717 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6718 break;
6719 case LPFC_SLI_INTF_IF_TYPE_2:
6720 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 6721 phba->sli4_hba.conf_regs_memmap_p +
6722 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 6723 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 6724 phba->sli4_hba.conf_regs_memmap_p +
6725 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 6726 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 6727 phba->sli4_hba.conf_regs_memmap_p +
6728 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 6729 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 6730 phba->sli4_hba.conf_regs_memmap_p +
6731 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 6732 phba->sli4_hba.SLIINTFregaddr =
6733 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6734 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 6735 phba->sli4_hba.conf_regs_memmap_p +
6736 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf 6737 phba->sli4_hba.RQDBregaddr =
962bc51b
JS		 6738 phba->sli4_hba.conf_regs_memmap_p +
6739 LPFC_ULP0_RQ_DOORBELL;
2fcee4bf 6740 phba->sli4_hba.WQDBregaddr =
962bc51b
JS		 6741 phba->sli4_hba.conf_regs_memmap_p +
6742 LPFC_ULP0_WQ_DOORBELL;
2fcee4bf
JS		 6743 phba->sli4_hba.EQCQDBregaddr =
6744 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6745 phba->sli4_hba.MQDBregaddr =
6746 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6747 phba->sli4_hba.BMBXregaddr =
6748 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6749 break;
6750 case LPFC_SLI_INTF_IF_TYPE_1:
6751 default:
6752 dev_printk(KERN_ERR, &phba->pcidev->dev,
6753 "FATAL - unsupported SLI4 interface type - %d\n",
6754 if_type);
6755 break;
6756 }
da0436e9 6757}
3772a991 6758
da0436e9
JS		 6759/**
6760 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6761 * @phba: pointer to lpfc hba data structure.
6762 *
6763 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6764 * memory map.
6765 **/
6766static void
6767lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6768{
2fcee4bf
JS		 6769 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6770 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 6771 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6772 LPFC_HST_ISR0;
da0436e9 6773 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6774 LPFC_HST_IMR0;
da0436e9 6775 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6776 LPFC_HST_ISCR0;
3772a991
JS		 6777}
6778
6779/**
da0436e9 6780 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 6781 * @phba: pointer to lpfc hba data structure.
da0436e9 6782 * @vf: virtual function number
3772a991 6783 *
da0436e9
JS		 6784 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6785 * based on the given viftual function number, @vf.
6786 *
6787 * Return 0 if successful, otherwise -ENODEV.
3772a991 6788 **/
da0436e9
JS		 6789static int
6790lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 6791{
da0436e9
JS		 6792 if (vf > LPFC_VIR_FUNC_MAX)
6793 return -ENODEV;
3772a991 6794
da0436e9 6795 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
962bc51b
JS		 6796 vf * LPFC_VFR_PAGE_SIZE +
6797 LPFC_ULP0_RQ_DOORBELL);
da0436e9 6798 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
962bc51b
JS		 6799 vf * LPFC_VFR_PAGE_SIZE +
6800 LPFC_ULP0_WQ_DOORBELL);
da0436e9
JS		 6801 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6802 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6803 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6804 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6805 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6806 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6807 return 0;
3772a991
JS		 6808}
6809
6810/**
da0436e9 6811 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 6812 * @phba: pointer to lpfc hba data structure.
6813 *
da0436e9
JS		 6814 * This routine is invoked to create the bootstrap mailbox
6815 * region consistent with the SLI-4 interface spec. This
6816 * routine allocates all memory necessary to communicate
6817 * mailbox commands to the port and sets up all alignment
6818 * needs. No locks are expected to be held when calling
6819 * this routine.
3772a991
JS		 6820 *
6821 * Return codes
af901ca1 6822 * 0 - successful
d439d286 6823 * -ENOMEM - could not allocated memory.
da0436e9 6824 **/
3772a991 6825static int
da0436e9 6826lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6827{
da0436e9
JS		 6828 uint32_t bmbx_size;
6829 struct lpfc_dmabuf *dmabuf;
6830 struct dma_address *dma_address;
6831 uint32_t pa_addr;
6832 uint64_t phys_addr;
6833
6834 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6835 if (!dmabuf)
6836 return -ENOMEM;
3772a991 6837
da0436e9
JS		 6838 /*
6839 * The bootstrap mailbox region is comprised of 2 parts
6840 * plus an alignment restriction of 16 bytes.
6841 */
6842 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
1aee383d
JP		 6843 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6844 &dmabuf->phys, GFP_KERNEL);
da0436e9
JS		 6845 if (!dmabuf->virt) {
6846 kfree(dmabuf);
6847 return -ENOMEM;
3772a991
JS		 6848 }
6849
da0436e9
JS		 6850 /*
6851 * Initialize the bootstrap mailbox pointers now so that the register
6852 * operations are simple later. The mailbox dma address is required
6853 * to be 16-byte aligned. Also align the virtual memory as each
6854 * maibox is copied into the bmbx mailbox region before issuing the
6855 * command to the port.
6856 */
6857 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6858 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6859
6860 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6861 LPFC_ALIGN_16_BYTE);
6862 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6863 LPFC_ALIGN_16_BYTE);
6864
6865 /*
6866 * Set the high and low physical addresses now. The SLI4 alignment
6867 * requirement is 16 bytes and the mailbox is posted to the port
6868 * as two 30-bit addresses. The other data is a bit marking whether
6869 * the 30-bit address is the high or low address.
6870 * Upcast bmbx aphys to 64bits so shift instruction compiles
6871 * clean on 32 bit machines.
6872 */
6873 dma_address = &phba->sli4_hba.bmbx.dma_address;
6874 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6875 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6876 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6877 LPFC_BMBX_BIT1_ADDR_HI);
6878
6879 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6880 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6881 LPFC_BMBX_BIT1_ADDR_LO);
6882 return 0;
3772a991
JS		 6883}
6884
6885/**
da0436e9 6886 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 6887 * @phba: pointer to lpfc hba data structure.
6888 *
da0436e9
JS		 6889 * This routine is invoked to teardown the bootstrap mailbox
6890 * region and release all host resources. This routine requires
6891 * the caller to ensure all mailbox commands recovered, no
6892 * additional mailbox comands are sent, and interrupts are disabled
6893 * before calling this routine.
6894 *
6895 **/
3772a991 6896static void
da0436e9 6897lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6898{
da0436e9
JS		 6899 dma_free_coherent(&phba->pcidev->dev,
6900 phba->sli4_hba.bmbx.bmbx_size,
6901 phba->sli4_hba.bmbx.dmabuf->virt,
6902 phba->sli4_hba.bmbx.dmabuf->phys);
6903
6904 kfree(phba->sli4_hba.bmbx.dmabuf);
6905 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 6906}
6907
6908/**
da0436e9 6909 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 6910 * @phba: pointer to lpfc hba data structure.
6911 *
da0436e9
JS		 6912 * This routine is invoked to read the configuration parameters from the HBA.
6913 * The configuration parameters are used to set the base and maximum values
6914 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6915 * allocation for the port.
3772a991
JS		 6916 *
6917 * Return codes
af901ca1 6918 * 0 - successful
25985edc 6919 * -ENOMEM - No available memory
d439d286 6920 * -EIO - The mailbox failed to complete successfully.
3772a991 6921 **/
ff78d8f9 6922int
da0436e9 6923lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 6924{
da0436e9
JS		 6925 LPFC_MBOXQ_t *pmb;
6926 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 6927 union lpfc_sli4_cfg_shdr *shdr;
6928 uint32_t shdr_status, shdr_add_status;
6929 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6930 struct lpfc_rsrc_desc_fcfcoe *desc;
8aa134a8 6931 char *pdesc_0;
8aa134a8 6932 int length, i, rc = 0, rc2;
3772a991 6933
da0436e9
JS		 6934 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6935 if (!pmb) {
6936 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6937 "2011 Unable to allocate memory for issuing "
6938 "SLI_CONFIG_SPECIAL mailbox command\n");
6939 return -ENOMEM;
3772a991
JS		 6940 }
6941
da0436e9 6942 lpfc_read_config(phba, pmb);
3772a991 6943
da0436e9
JS		 6944 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6945 if (rc != MBX_SUCCESS) {
6946 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6947 "2012 Mailbox failed , mbxCmd x%x "
6948 "READ_CONFIG, mbxStatus x%x\n",
6949 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6950 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6951 rc = -EIO;
6952 } else {
6953 rd_config = &pmb->u.mqe.un.rd_config;
ff78d8f9
JS		 6954 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6955 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6956 phba->sli4_hba.lnk_info.lnk_tp =
6957 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6958 phba->sli4_hba.lnk_info.lnk_no =
6959 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6960 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6961 "3081 lnk_type:%d, lnk_numb:%d\n",
6962 phba->sli4_hba.lnk_info.lnk_tp,
6963 phba->sli4_hba.lnk_info.lnk_no);
6964 } else
6965 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6966 "3082 Mailbox (x%x) returned ldv:x0\n",
6967 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6d368e53
JS		 6968 phba->sli4_hba.extents_in_use =
6969 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 6970 phba->sli4_hba.max_cfg_param.max_xri =
6971 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6972 phba->sli4_hba.max_cfg_param.xri_base =
6973 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6974 phba->sli4_hba.max_cfg_param.max_vpi =
6975 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6976 phba->sli4_hba.max_cfg_param.vpi_base =
6977 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6978 phba->sli4_hba.max_cfg_param.max_rpi =
6979 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6980 phba->sli4_hba.max_cfg_param.rpi_base =
6981 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6982 phba->sli4_hba.max_cfg_param.max_vfi =
6983 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6984 phba->sli4_hba.max_cfg_param.vfi_base =
6985 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6986 phba->sli4_hba.max_cfg_param.max_fcfi =
6987 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 6988 phba->sli4_hba.max_cfg_param.max_eq =
6989 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6990 phba->sli4_hba.max_cfg_param.max_rq =
6991 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6992 phba->sli4_hba.max_cfg_param.max_wq =
6993 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6994 phba->sli4_hba.max_cfg_param.max_cq =
6995 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6996 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6997 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6998 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6999 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5ffc266e
JS		 7000 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7001 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 7002 phba->max_vports = phba->max_vpi;
7003 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 7004 "2003 cfg params Extents? %d "
7005 "XRI(B:%d M:%d), "
da0436e9
JS		 7006 "VPI(B:%d M:%d) "
7007 "VFI(B:%d M:%d) "
7008 "RPI(B:%d M:%d) "
6d368e53
JS		 7009 "FCFI(Count:%d)\n",
7010 phba->sli4_hba.extents_in_use,
da0436e9
JS		 7011 phba->sli4_hba.max_cfg_param.xri_base,
7012 phba->sli4_hba.max_cfg_param.max_xri,
7013 phba->sli4_hba.max_cfg_param.vpi_base,
7014 phba->sli4_hba.max_cfg_param.max_vpi,
7015 phba->sli4_hba.max_cfg_param.vfi_base,
7016 phba->sli4_hba.max_cfg_param.max_vfi,
7017 phba->sli4_hba.max_cfg_param.rpi_base,
7018 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 7019 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 7020 }
912e3acd
JS		 7021
7022 if (rc)
7023 goto read_cfg_out;
da0436e9
JS		 7024
7025 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
572709e2
JS		 7026 length = phba->sli4_hba.max_cfg_param.max_xri -
7027 lpfc_sli4_get_els_iocb_cnt(phba);
7028 if (phba->cfg_hba_queue_depth > length) {
7029 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7030 "3361 HBA queue depth changed from %d to %d\n",
7031 phba->cfg_hba_queue_depth, length);
7032 phba->cfg_hba_queue_depth = length;
7033 }
912e3acd
JS		 7034
7035 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7036 LPFC_SLI_INTF_IF_TYPE_2)
7037 goto read_cfg_out;
7038
7039 /* get the pf# and vf# for SLI4 if_type 2 port */
7040 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7041 sizeof(struct lpfc_sli4_cfg_mhdr));
7042 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7043 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7044 length, LPFC_SLI4_MBX_EMBED);
7045
8aa134a8 7046 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
912e3acd
JS		 7047 shdr = (union lpfc_sli4_cfg_shdr *)
7048 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7049 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7050 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8aa134a8 7051 if (rc2 || shdr_status || shdr_add_status) {
912e3acd
JS		 7052 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7053 "3026 Mailbox failed , mbxCmd x%x "
7054 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7055 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7056 bf_get(lpfc_mqe_status, &pmb->u.mqe));
912e3acd
JS		 7057 goto read_cfg_out;
7058 }
7059
7060 /* search for fc_fcoe resrouce descriptor */
7061 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
912e3acd 7062
8aa134a8
JS		 7063 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7064 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7065 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7066 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7067 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7068 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7069 goto read_cfg_out;
7070
912e3acd 7071 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8aa134a8 7072 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
912e3acd 7073 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8aa134a8 7074 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
912e3acd
JS		 7075 phba->sli4_hba.iov.pf_number =
7076 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7077 phba->sli4_hba.iov.vf_number =
7078 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7079 break;
7080 }
7081 }
7082
7083 if (i < LPFC_RSRC_DESC_MAX_NUM)
7084 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7085 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7086 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7087 phba->sli4_hba.iov.vf_number);
8aa134a8 7088 else
912e3acd
JS		 7089 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7090 "3028 GET_FUNCTION_CONFIG: failed to find "
7091 "Resrouce Descriptor:x%x\n",
7092 LPFC_RSRC_DESC_TYPE_FCFCOE);
912e3acd
JS		 7093
7094read_cfg_out:
7095 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 7096 return rc;
3772a991
JS		 7097}
7098
7099/**
2fcee4bf 7100 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 7101 * @phba: pointer to lpfc hba data structure.
7102 *
2fcee4bf
JS		 7103 * This routine is invoked to setup the port-side endian order when
7104 * the port if_type is 0. This routine has no function for other
7105 * if_types.
da0436e9
JS		 7106 *
7107 * Return codes
af901ca1 7108 * 0 - successful
25985edc 7109 * -ENOMEM - No available memory
d439d286 7110 * -EIO - The mailbox failed to complete successfully.
3772a991 7111 **/
da0436e9
JS		 7112static int
7113lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 7114{
da0436e9 7115 LPFC_MBOXQ_t *mboxq;
2fcee4bf 7116 uint32_t if_type, rc = 0;
da0436e9
JS		 7117 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7118 HOST_ENDIAN_HIGH_WORD1};
3772a991 7119
2fcee4bf
JS		 7120 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7121 switch (if_type) {
7122 case LPFC_SLI_INTF_IF_TYPE_0:
7123 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7124 GFP_KERNEL);
7125 if (!mboxq) {
7126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7127 "0492 Unable to allocate memory for "
7128 "issuing SLI_CONFIG_SPECIAL mailbox "
7129 "command\n");
7130 return -ENOMEM;
7131 }
3772a991 7132
2fcee4bf
JS		 7133 /*
7134 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7135 * two words to contain special data values and no other data.
7136 */
7137 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7138 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7139 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7140 if (rc != MBX_SUCCESS) {
7141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7142 "0493 SLI_CONFIG_SPECIAL mailbox "
7143 "failed with status x%x\n",
7144 rc);
7145 rc = -EIO;
7146 }
7147 mempool_free(mboxq, phba->mbox_mem_pool);
7148 break;
7149 case LPFC_SLI_INTF_IF_TYPE_2:
7150 case LPFC_SLI_INTF_IF_TYPE_1:
7151 default:
7152 break;
da0436e9 7153 }
da0436e9 7154 return rc;
3772a991
JS		 7155}
7156
7157/**
5350d872 7158 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
3772a991
JS		 7159 * @phba: pointer to lpfc hba data structure.
7160 *
5350d872
JS		 7161 * This routine is invoked to check the user settable queue counts for EQs and
7162 * CQs. after this routine is called the counts will be set to valid values that
7163 * adhere to the constraints of the system's interrupt vectors and the port's
7164 * queue resources.
da0436e9
JS		 7165 *
7166 * Return codes
af901ca1 7167 * 0 - successful
25985edc 7168 * -ENOMEM - No available memory
3772a991 7169 **/
da0436e9 7170static int
5350d872 7171lpfc_sli4_queue_verify(struct lpfc_hba *phba)
3772a991 7172{
67d12733 7173 int cfg_fcp_io_channel;
90695ee0
JS		 7174 uint32_t cpu;
7175 uint32_t i = 0;
1ba981fd 7176 int fof_vectors = phba->cfg_fof ? 1 : 0;
3772a991 7177
da0436e9 7178 /*
67d12733 7179 * Sanity check for configured queue parameters against the run-time
da0436e9
JS		 7180 * device parameters
7181 */
3772a991 7182
67d12733
JS		 7183 /* Sanity check on HBA EQ parameters */
7184 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7185
7bb03bbf
JS		 7186 /* It doesn't make sense to have more io channels then online CPUs */
7187 for_each_present_cpu(cpu) {
7188 if (cpu_online(cpu))
7189 i++;
90695ee0 7190 }
7bb03bbf 7191 phba->sli4_hba.num_online_cpu = i;
b246de17 7192 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
76fd07a6 7193 phba->sli4_hba.curr_disp_cpu = 0;
7bb03bbf 7194
90695ee0 7195 if (i < cfg_fcp_io_channel) {
82c3e9ba
JS		 7196 lpfc_printf_log(phba,
7197 KERN_ERR, LOG_INIT,
90695ee0 7198 "3188 Reducing IO channels to match number of "
7bb03bbf
JS		 7199 "online CPUs: from %d to %d\n",
7200 cfg_fcp_io_channel, i);
90695ee0
JS		 7201 cfg_fcp_io_channel = i;
7202 }
7203
1ba981fd 7204 if (cfg_fcp_io_channel + fof_vectors >
67d12733 7205 phba->sli4_hba.max_cfg_param.max_eq) {
82c3e9ba
JS		 7206 if (phba->sli4_hba.max_cfg_param.max_eq <
7207 LPFC_FCP_IO_CHAN_MIN) {
da0436e9
JS		 7208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7209 "2574 Not enough EQs (%d) from the "
7210 "pci function for supporting FCP "
7211 "EQs (%d)\n",
7212 phba->sli4_hba.max_cfg_param.max_eq,
67d12733 7213 phba->cfg_fcp_io_channel);
da0436e9
JS		 7214 goto out_error;
7215 }
82c3e9ba
JS		 7216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7217 "2575 Reducing IO channels to match number of "
7218 "available EQs: from %d to %d\n",
7219 cfg_fcp_io_channel,
7220 phba->sli4_hba.max_cfg_param.max_eq);
1ba981fd
JS		 7221 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7222 fof_vectors;
da0436e9 7223 }
67d12733 7224
da0436e9 7225 /* The actual number of FCP event queues adopted */
67d12733 7226 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
3772a991 7227
da0436e9
JS		 7228 /* Get EQ depth from module parameter, fake the default for now */
7229 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7230 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 7231
5350d872
JS		 7232 /* Get CQ depth from module parameter, fake the default for now */
7233 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7234 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7235
7236 return 0;
7237out_error:
7238 return -ENOMEM;
7239}
7240
7241/**
7242 * lpfc_sli4_queue_create - Create all the SLI4 queues
7243 * @phba: pointer to lpfc hba data structure.
7244 *
7245 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7246 * operation. For each SLI4 queue type, the parameters such as queue entry
7247 * count (queue depth) shall be taken from the module parameter. For now,
7248 * we just use some constant number as place holder.
7249 *
7250 * Return codes
4907cb7b 7251 * 0 - successful
5350d872
JS		 7252 * -ENOMEM - No availble memory
7253 * -EIO - The mailbox failed to complete successfully.
7254 **/
7255int
7256lpfc_sli4_queue_create(struct lpfc_hba *phba)
7257{
7258 struct lpfc_queue *qdesc;
dc58f44c 7259 uint32_t wqesize;
67d12733 7260 int idx;
5350d872
JS		 7261
7262 /*
67d12733 7263 * Create HBA Record arrays.
5350d872 7264 */
67d12733
JS		 7265 if (!phba->cfg_fcp_io_channel)
7266 return -ERANGE;
5350d872 7267
67d12733
JS		 7268 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7269 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7270 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7271 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7272 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7273 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7274
7275 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7276 phba->cfg_fcp_io_channel), GFP_KERNEL);
7277 if (!phba->sli4_hba.hba_eq) {
7278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7279 "2576 Failed allocate memory for "
7280 "fast-path EQ record array\n");
7281 goto out_error;
7282 }
7283
7284 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7285 phba->cfg_fcp_io_channel), GFP_KERNEL);
7286 if (!phba->sli4_hba.fcp_cq) {
da0436e9 7287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
67d12733
JS		 7288 "2577 Failed allocate memory for fast-path "
7289 "CQ record array\n");
7290 goto out_error;
7291 }
7292
7293 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7294 phba->cfg_fcp_io_channel), GFP_KERNEL);
7295 if (!phba->sli4_hba.fcp_wq) {
7296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7297 "2578 Failed allocate memory for fast-path "
7298 "WQ record array\n");
da0436e9
JS		 7299 goto out_error;
7300 }
da0436e9 7301
5350d872 7302 /*
67d12733
JS		 7303 * Since the first EQ can have multiple CQs associated with it,
7304 * this array is used to quickly see if we have a FCP fast-path
7305 * CQ match.
5350d872 7306 */
67d12733
JS		 7307 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7308 phba->cfg_fcp_io_channel), GFP_KERNEL);
7309 if (!phba->sli4_hba.fcp_cq_map) {
7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311 "2545 Failed allocate memory for fast-path "
7312 "CQ map\n");
7313 goto out_error;
da0436e9 7314 }
67d12733
JS		 7315
7316 /*
7317 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7318 * how many EQs to create.
7319 */
7320 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7321
7322 /* Create EQs */
da0436e9
JS		 7323 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7324 phba->sli4_hba.eq_ecount);
7325 if (!qdesc) {
7326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
67d12733
JS		 7327 "0497 Failed allocate EQ (%d)\n", idx);
7328 goto out_error;
da0436e9 7329 }
67d12733
JS		 7330 phba->sli4_hba.hba_eq[idx] = qdesc;
7331
7332 /* Create Fast Path FCP CQs */
7333 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7334 phba->sli4_hba.cq_ecount);
7335 if (!qdesc) {
7336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7337 "0499 Failed allocate fast-path FCP "
7338 "CQ (%d)\n", idx);
7339 goto out_error;
7340 }
7341 phba->sli4_hba.fcp_cq[idx] = qdesc;
7342
7343 /* Create Fast Path FCP WQs */
dc58f44c
JS		 7344 wqesize = (phba->fcp_embed_io) ?
7345 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7346 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
7347 phba->sli4_hba.wq_ecount);
67d12733
JS		 7348 if (!qdesc) {
7349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7350 "0503 Failed allocate fast-path FCP "
7351 "WQ (%d)\n", idx);
7352 goto out_error;
7353 }
7354 phba->sli4_hba.fcp_wq[idx] = qdesc;
da0436e9
JS		 7355 }
7356
67d12733 7357
da0436e9 7358 /*
67d12733 7359 * Create Slow Path Completion Queues (CQs)
da0436e9
JS		 7360 */
7361
da0436e9
JS		 7362 /* Create slow-path Mailbox Command Complete Queue */
7363 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7364 phba->sli4_hba.cq_ecount);
7365 if (!qdesc) {
7366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7367 "0500 Failed allocate slow-path mailbox CQ\n");
67d12733 7368 goto out_error;
da0436e9
JS		 7369 }
7370 phba->sli4_hba.mbx_cq = qdesc;
7371
7372 /* Create slow-path ELS Complete Queue */
7373 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7374 phba->sli4_hba.cq_ecount);
7375 if (!qdesc) {
7376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7377 "0501 Failed allocate slow-path ELS CQ\n");
67d12733 7378 goto out_error;
da0436e9
JS		 7379 }
7380 phba->sli4_hba.els_cq = qdesc;
7381
da0436e9 7382
5350d872 7383 /*
67d12733 7384 * Create Slow Path Work Queues (WQs)
5350d872 7385 */
da0436e9
JS		 7386
7387 /* Create Mailbox Command Queue */
da0436e9
JS		 7388
7389 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7390 phba->sli4_hba.mq_ecount);
7391 if (!qdesc) {
7392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7393 "0505 Failed allocate slow-path MQ\n");
67d12733 7394 goto out_error;
da0436e9
JS		 7395 }
7396 phba->sli4_hba.mbx_wq = qdesc;
7397
7398 /*
67d12733 7399 * Create ELS Work Queues
da0436e9 7400 */
da0436e9
JS		 7401
7402 /* Create slow-path ELS Work Queue */
7403 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7404 phba->sli4_hba.wq_ecount);
7405 if (!qdesc) {
7406 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7407 "0504 Failed allocate slow-path ELS WQ\n");
67d12733 7408 goto out_error;
da0436e9
JS		 7409 }
7410 phba->sli4_hba.els_wq = qdesc;
7411
da0436e9
JS		 7412 /*
7413 * Create Receive Queue (RQ)
7414 */
da0436e9
JS		 7415
7416 /* Create Receive Queue for header */
7417 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7418 phba->sli4_hba.rq_ecount);
7419 if (!qdesc) {
7420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7421 "0506 Failed allocate receive HRQ\n");
67d12733 7422 goto out_error;
da0436e9
JS		 7423 }
7424 phba->sli4_hba.hdr_rq = qdesc;
7425
7426 /* Create Receive Queue for data */
7427 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7428 phba->sli4_hba.rq_ecount);
7429 if (!qdesc) {
7430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7431 "0507 Failed allocate receive DRQ\n");
67d12733 7432 goto out_error;
da0436e9
JS		 7433 }
7434 phba->sli4_hba.dat_rq = qdesc;
7435
1ba981fd
JS		 7436 /* Create the Queues needed for Flash Optimized Fabric operations */
7437 if (phba->cfg_fof)
7438 lpfc_fof_queue_create(phba);
da0436e9
JS		 7439 return 0;
7440
da0436e9 7441out_error:
67d12733 7442 lpfc_sli4_queue_destroy(phba);
da0436e9
JS		 7443 return -ENOMEM;
7444}
7445
7446/**
7447 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7448 * @phba: pointer to lpfc hba data structure.
7449 *
7450 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7451 * operation.
7452 *
7453 * Return codes
af901ca1 7454 * 0 - successful
25985edc 7455 * -ENOMEM - No available memory
d439d286 7456 * -EIO - The mailbox failed to complete successfully.
da0436e9 7457 **/
5350d872 7458void
da0436e9
JS		 7459lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7460{
67d12733
JS		 7461 int idx;
7462
1ba981fd
JS		 7463 if (phba->cfg_fof)
7464 lpfc_fof_queue_destroy(phba);
7465
67d12733
JS		 7466 if (phba->sli4_hba.hba_eq != NULL) {
7467 /* Release HBA event queue */
7468 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7469 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7470 lpfc_sli4_queue_free(
7471 phba->sli4_hba.hba_eq[idx]);
7472 phba->sli4_hba.hba_eq[idx] = NULL;
7473 }
7474 }
7475 kfree(phba->sli4_hba.hba_eq);
7476 phba->sli4_hba.hba_eq = NULL;
7477 }
7478
7479 if (phba->sli4_hba.fcp_cq != NULL) {
7480 /* Release FCP completion queue */
7481 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7482 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7483 lpfc_sli4_queue_free(
7484 phba->sli4_hba.fcp_cq[idx]);
7485 phba->sli4_hba.fcp_cq[idx] = NULL;
7486 }
7487 }
7488 kfree(phba->sli4_hba.fcp_cq);
7489 phba->sli4_hba.fcp_cq = NULL;
7490 }
7491
7492 if (phba->sli4_hba.fcp_wq != NULL) {
7493 /* Release FCP work queue */
7494 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7495 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7496 lpfc_sli4_queue_free(
7497 phba->sli4_hba.fcp_wq[idx]);
7498 phba->sli4_hba.fcp_wq[idx] = NULL;
7499 }
7500 }
7501 kfree(phba->sli4_hba.fcp_wq);
7502 phba->sli4_hba.fcp_wq = NULL;
7503 }
7504
7505 /* Release FCP CQ mapping array */
7506 if (phba->sli4_hba.fcp_cq_map != NULL) {
7507 kfree(phba->sli4_hba.fcp_cq_map);
7508 phba->sli4_hba.fcp_cq_map = NULL;
7509 }
da0436e9
JS		 7510
7511 /* Release mailbox command work queue */
67d12733
JS		 7512 if (phba->sli4_hba.mbx_wq != NULL) {
7513 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7514 phba->sli4_hba.mbx_wq = NULL;
7515 }
da0436e9
JS		 7516
7517 /* Release ELS work queue */
67d12733
JS		 7518 if (phba->sli4_hba.els_wq != NULL) {
7519 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7520 phba->sli4_hba.els_wq = NULL;
7521 }
da0436e9
JS		 7522
7523 /* Release unsolicited receive queue */
67d12733
JS		 7524 if (phba->sli4_hba.hdr_rq != NULL) {
7525 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7526 phba->sli4_hba.hdr_rq = NULL;
7527 }
7528 if (phba->sli4_hba.dat_rq != NULL) {
7529 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7530 phba->sli4_hba.dat_rq = NULL;
7531 }
da0436e9 7532
da0436e9 7533 /* Release ELS complete queue */
67d12733
JS		 7534 if (phba->sli4_hba.els_cq != NULL) {
7535 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7536 phba->sli4_hba.els_cq = NULL;
7537 }
da0436e9
JS		 7538
7539 /* Release mailbox command complete queue */
67d12733
JS		 7540 if (phba->sli4_hba.mbx_cq != NULL) {
7541 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7542 phba->sli4_hba.mbx_cq = NULL;
7543 }
da0436e9
JS		 7544
7545 return;
7546}
7547
7548/**
7549 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7550 * @phba: pointer to lpfc hba data structure.
7551 *
7552 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7553 * operation.
7554 *
7555 * Return codes
af901ca1 7556 * 0 - successful
25985edc 7557 * -ENOMEM - No available memory
d439d286 7558 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7559 **/
7560int
7561lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7562{
2a76a283
JS		 7563 struct lpfc_sli *psli = &phba->sli;
7564 struct lpfc_sli_ring *pring;
da0436e9
JS		 7565 int rc = -ENOMEM;
7566 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7567 int fcp_cq_index = 0;
962bc51b
JS		 7568 uint32_t shdr_status, shdr_add_status;
7569 union lpfc_sli4_cfg_shdr *shdr;
7570 LPFC_MBOXQ_t *mboxq;
7571 uint32_t length;
7572
7573 /* Check for dual-ULP support */
7574 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7575 if (!mboxq) {
7576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7577 "3249 Unable to allocate memory for "
7578 "QUERY_FW_CFG mailbox command\n");
7579 return -ENOMEM;
7580 }
7581 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7582 sizeof(struct lpfc_sli4_cfg_mhdr));
7583 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7584 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7585 length, LPFC_SLI4_MBX_EMBED);
7586
7587 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7588
7589 shdr = (union lpfc_sli4_cfg_shdr *)
7590 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7591 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7592 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7593 if (shdr_status || shdr_add_status || rc) {
7594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7595 "3250 QUERY_FW_CFG mailbox failed with status "
7596 "x%x add_status x%x, mbx status x%x\n",
7597 shdr_status, shdr_add_status, rc);
7598 if (rc != MBX_TIMEOUT)
7599 mempool_free(mboxq, phba->mbox_mem_pool);
7600 rc = -ENXIO;
7601 goto out_error;
7602 }
7603
7604 phba->sli4_hba.fw_func_mode =
7605 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7606 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7607 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8b017a30
JS		 7608 phba->sli4_hba.physical_port =
7609 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
962bc51b
JS		 7610 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7611 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7612 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7613 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7614
7615 if (rc != MBX_TIMEOUT)
7616 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 7617
7618 /*
67d12733 7619 * Set up HBA Event Queues (EQs)
da0436e9
JS		 7620 */
7621
67d12733
JS		 7622 /* Set up HBA event queue */
7623 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
2e90f4b5
JS		 7624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7625 "3147 Fast-path EQs not allocated\n");
1b51197d 7626 rc = -ENOMEM;
67d12733 7627 goto out_error;
2e90f4b5 7628 }
67d12733
JS		 7629 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7630 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
da0436e9
JS		 7631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7632 "0522 Fast-path EQ (%d) not "
7633 "allocated\n", fcp_eqidx);
1b51197d 7634 rc = -ENOMEM;
67d12733 7635 goto out_destroy_hba_eq;
da0436e9 7636 }
67d12733 7637 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
bf8dae83 7638 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
da0436e9
JS		 7639 if (rc) {
7640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7641 "0523 Failed setup of fast-path EQ "
a2fc4aef
JS		 7642 "(%d), rc = 0x%x\n", fcp_eqidx,
7643 (uint32_t)rc);
67d12733 7644 goto out_destroy_hba_eq;
da0436e9
JS		 7645 }
7646 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
67d12733 7647 "2584 HBA EQ setup: "
da0436e9 7648 "queue[%d]-id=%d\n", fcp_eqidx,
67d12733 7649 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
da0436e9
JS		 7650 }
7651
67d12733
JS		 7652 /* Set up fast-path FCP Response Complete Queue */
7653 if (!phba->sli4_hba.fcp_cq) {
7654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7655 "3148 Fast-path FCP CQ array not "
7656 "allocated\n");
7657 rc = -ENOMEM;
7658 goto out_destroy_hba_eq;
7659 }
7660
7661 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7662 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7664 "0526 Fast-path FCP CQ (%d) not "
7665 "allocated\n", fcp_cqidx);
7666 rc = -ENOMEM;
7667 goto out_destroy_fcp_cq;
7668 }
7669 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7670 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7671 if (rc) {
7672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7673 "0527 Failed setup of fast-path FCP "
a2fc4aef
JS		 7674 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7675 (uint32_t)rc);
67d12733
JS		 7676 goto out_destroy_fcp_cq;
7677 }
7678
7679 /* Setup fcp_cq_map for fast lookup */
7680 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7681 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7682
7683 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7684 "2588 FCP CQ setup: cq[%d]-id=%d, "
7685 "parent seq[%d]-id=%d\n",
7686 fcp_cqidx,
7687 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7688 fcp_cqidx,
7689 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7690 }
7691
7692 /* Set up fast-path FCP Work Queue */
7693 if (!phba->sli4_hba.fcp_wq) {
7694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7695 "3149 Fast-path FCP WQ array not "
7696 "allocated\n");
7697 rc = -ENOMEM;
7698 goto out_destroy_fcp_cq;
7699 }
7700
7701 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7702 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7704 "0534 Fast-path FCP WQ (%d) not "
7705 "allocated\n", fcp_wqidx);
7706 rc = -ENOMEM;
7707 goto out_destroy_fcp_wq;
7708 }
7709 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7710 phba->sli4_hba.fcp_cq[fcp_wqidx],
7711 LPFC_FCP);
7712 if (rc) {
7713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714 "0535 Failed setup of fast-path FCP "
a2fc4aef
JS		 7715 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7716 (uint32_t)rc);
67d12733
JS		 7717 goto out_destroy_fcp_wq;
7718 }
7719
7720 /* Bind this WQ to the next FCP ring */
7721 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7722 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7723 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7724
7725 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7726 "2591 FCP WQ setup: wq[%d]-id=%d, "
7727 "parent cq[%d]-id=%d\n",
7728 fcp_wqidx,
7729 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7730 fcp_cq_index,
7731 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7732 }
da0436e9
JS		 7733 /*
7734 * Set up Complete Queues (CQs)
7735 */
7736
7737 /* Set up slow-path MBOX Complete Queue as the first CQ */
7738 if (!phba->sli4_hba.mbx_cq) {
7739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7740 "0528 Mailbox CQ not allocated\n");
1b51197d 7741 rc = -ENOMEM;
67d12733 7742 goto out_destroy_fcp_wq;
da0436e9 7743 }
67d12733
JS		 7744 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7745 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
da0436e9
JS		 7746 if (rc) {
7747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7748 "0529 Failed setup of slow-path mailbox CQ: "
a2fc4aef 7749 "rc = 0x%x\n", (uint32_t)rc);
67d12733 7750 goto out_destroy_fcp_wq;
da0436e9
JS		 7751 }
7752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7753 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7754 phba->sli4_hba.mbx_cq->queue_id,
67d12733 7755 phba->sli4_hba.hba_eq[0]->queue_id);
da0436e9
JS		 7756
7757 /* Set up slow-path ELS Complete Queue */
7758 if (!phba->sli4_hba.els_cq) {
7759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7760 "0530 ELS CQ not allocated\n");
1b51197d 7761 rc = -ENOMEM;
da0436e9
JS		 7762 goto out_destroy_mbx_cq;
7763 }
67d12733
JS		 7764 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7765 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
da0436e9
JS		 7766 if (rc) {
7767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7768 "0531 Failed setup of slow-path ELS CQ: "
a2fc4aef 7769 "rc = 0x%x\n", (uint32_t)rc);
da0436e9
JS		 7770 goto out_destroy_mbx_cq;
7771 }
7772 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7773 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7774 phba->sli4_hba.els_cq->queue_id,
67d12733 7775 phba->sli4_hba.hba_eq[0]->queue_id);
da0436e9
JS		 7776
7777 /*
7778 * Set up all the Work Queues (WQs)
7779 */
7780
7781 /* Set up Mailbox Command Queue */
7782 if (!phba->sli4_hba.mbx_wq) {
7783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7784 "0538 Slow-path MQ not allocated\n");
1b51197d 7785 rc = -ENOMEM;
67d12733 7786 goto out_destroy_els_cq;
da0436e9
JS		 7787 }
7788 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7789 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7790 if (rc) {
7791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7792 "0539 Failed setup of slow-path MQ: "
7793 "rc = 0x%x\n", rc);
67d12733 7794 goto out_destroy_els_cq;
da0436e9
JS		 7795 }
7796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7797 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7798 phba->sli4_hba.mbx_wq->queue_id,
7799 phba->sli4_hba.mbx_cq->queue_id);
7800
7801 /* Set up slow-path ELS Work Queue */
7802 if (!phba->sli4_hba.els_wq) {
7803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7804 "0536 Slow-path ELS WQ not allocated\n");
1b51197d 7805 rc = -ENOMEM;
da0436e9
JS		 7806 goto out_destroy_mbx_wq;
7807 }
7808 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7809 phba->sli4_hba.els_cq, LPFC_ELS);
7810 if (rc) {
7811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7812 "0537 Failed setup of slow-path ELS WQ: "
a2fc4aef 7813 "rc = 0x%x\n", (uint32_t)rc);
da0436e9
JS		 7814 goto out_destroy_mbx_wq;
7815 }
2a76a283
JS		 7816
7817 /* Bind this WQ to the ELS ring */
7818 pring = &psli->ring[LPFC_ELS_RING];
7819 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7820 phba->sli4_hba.els_cq->pring = pring;
7821
da0436e9
JS		 7822 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7823 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7824 phba->sli4_hba.els_wq->queue_id,
7825 phba->sli4_hba.els_cq->queue_id);
7826
da0436e9
JS		 7827 /*
7828 * Create Receive Queue (RQ)
7829 */
7830 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7832 "0540 Receive Queue not allocated\n");
1b51197d 7833 rc = -ENOMEM;
67d12733 7834 goto out_destroy_els_wq;
da0436e9 7835 }
73d91e50
JS		 7836
7837 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7838 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7839
da0436e9 7840 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 7841 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 7842 if (rc) {
7843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7844 "0541 Failed setup of Receive Queue: "
a2fc4aef 7845 "rc = 0x%x\n", (uint32_t)rc);
da0436e9
JS		 7846 goto out_destroy_fcp_wq;
7847 }
73d91e50 7848
da0436e9
JS		 7849 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7850 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7851 "parent cq-id=%d\n",
7852 phba->sli4_hba.hdr_rq->queue_id,
7853 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 7854 phba->sli4_hba.els_cq->queue_id);
1ba981fd
JS		 7855
7856 if (phba->cfg_fof) {
7857 rc = lpfc_fof_queue_setup(phba);
7858 if (rc) {
7859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7860 "0549 Failed setup of FOF Queues: "
7861 "rc = 0x%x\n", rc);
7862 goto out_destroy_els_rq;
7863 }
7864 }
2c9c5a00
JS		 7865
7866 /*
7867 * Configure EQ delay multipier for interrupt coalescing using
7868 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7869 */
7870 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7871 fcp_eqidx += LPFC_MAX_EQ_DELAY)
7872 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
da0436e9
JS		 7873 return 0;
7874
1ba981fd
JS		 7875out_destroy_els_rq:
7876 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
2e90f4b5 7877out_destroy_els_wq:
da0436e9
JS		 7878 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7879out_destroy_mbx_wq:
7880 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
2e90f4b5 7881out_destroy_els_cq:
da0436e9
JS		 7882 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7883out_destroy_mbx_cq:
7884 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
67d12733
JS		 7885out_destroy_fcp_wq:
7886 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7887 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7888out_destroy_fcp_cq:
7889 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7890 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7891out_destroy_hba_eq:
da0436e9 7892 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
67d12733 7893 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
da0436e9
JS		 7894out_error:
7895 return rc;
7896}
7897
7898/**
7899 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7900 * @phba: pointer to lpfc hba data structure.
7901 *
7902 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7903 * operation.
7904 *
7905 * Return codes
af901ca1 7906 * 0 - successful
25985edc 7907 * -ENOMEM - No available memory
d439d286 7908 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7909 **/
7910void
7911lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7912{
7913 int fcp_qidx;
7914
1ba981fd
JS		 7915 /* Unset the queues created for Flash Optimized Fabric operations */
7916 if (phba->cfg_fof)
7917 lpfc_fof_queue_destroy(phba);
da0436e9
JS		 7918 /* Unset mailbox command work queue */
7919 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7920 /* Unset ELS work queue */
7921 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7922 /* Unset unsolicited receive queue */
7923 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7924 /* Unset FCP work queue */
67d12733
JS		 7925 if (phba->sli4_hba.fcp_wq) {
7926 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7927 fcp_qidx++)
7928 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7929 }
da0436e9
JS		 7930 /* Unset mailbox command complete queue */
7931 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7932 /* Unset ELS complete queue */
7933 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9 7934 /* Unset FCP response complete queue */
2e90f4b5 7935 if (phba->sli4_hba.fcp_cq) {
67d12733
JS		 7936 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7937 fcp_qidx++)
2e90f4b5 7938 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
2e90f4b5 7939 }
da0436e9 7940 /* Unset fast-path event queue */
67d12733
JS		 7941 if (phba->sli4_hba.hba_eq) {
7942 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
2e90f4b5 7943 fcp_qidx++)
67d12733 7944 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
2e90f4b5 7945 }
da0436e9
JS		 7946}
7947
7948/**
7949 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7950 * @phba: pointer to lpfc hba data structure.
7951 *
7952 * This routine is invoked to allocate and set up a pool of completion queue
7953 * events. The body of the completion queue event is a completion queue entry
7954 * CQE. For now, this pool is used for the interrupt service routine to queue
7955 * the following HBA completion queue events for the worker thread to process:
7956 * - Mailbox asynchronous events
7957 * - Receive queue completion unsolicited events
7958 * Later, this can be used for all the slow-path events.
7959 *
7960 * Return codes
af901ca1 7961 * 0 - successful
25985edc 7962 * -ENOMEM - No available memory
da0436e9
JS		 7963 **/
7964static int
7965lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7966{
7967 struct lpfc_cq_event *cq_event;
7968 int i;
7969
7970 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7971 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7972 if (!cq_event)
7973 goto out_pool_create_fail;
7974 list_add_tail(&cq_event->list,
7975 &phba->sli4_hba.sp_cqe_event_pool);
7976 }
7977 return 0;
7978
7979out_pool_create_fail:
7980 lpfc_sli4_cq_event_pool_destroy(phba);
7981 return -ENOMEM;
7982}
7983
7984/**
7985 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7986 * @phba: pointer to lpfc hba data structure.
7987 *
7988 * This routine is invoked to free the pool of completion queue events at
7989 * driver unload time. Note that, it is the responsibility of the driver
7990 * cleanup routine to free all the outstanding completion-queue events
7991 * allocated from this pool back into the pool before invoking this routine
7992 * to destroy the pool.
7993 **/
7994static void
7995lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7996{
7997 struct lpfc_cq_event *cq_event, *next_cq_event;
7998
7999 list_for_each_entry_safe(cq_event, next_cq_event,
8000 &phba->sli4_hba.sp_cqe_event_pool, list) {
8001 list_del(&cq_event->list);
8002 kfree(cq_event);
8003 }
8004}
8005
8006/**
8007 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8008 * @phba: pointer to lpfc hba data structure.
8009 *
8010 * This routine is the lock free version of the API invoked to allocate a
8011 * completion-queue event from the free pool.
8012 *
8013 * Return: Pointer to the newly allocated completion-queue event if successful
8014 * NULL otherwise.
8015 **/
8016struct lpfc_cq_event *
8017__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8018{
8019 struct lpfc_cq_event *cq_event = NULL;
8020
8021 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8022 struct lpfc_cq_event, list);
8023 return cq_event;
8024}
8025
8026/**
8027 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8028 * @phba: pointer to lpfc hba data structure.
8029 *
8030 * This routine is the lock version of the API invoked to allocate a
8031 * completion-queue event from the free pool.
8032 *
8033 * Return: Pointer to the newly allocated completion-queue event if successful
8034 * NULL otherwise.
8035 **/
8036struct lpfc_cq_event *
8037lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8038{
8039 struct lpfc_cq_event *cq_event;
8040 unsigned long iflags;
8041
8042 spin_lock_irqsave(&phba->hbalock, iflags);
8043 cq_event = __lpfc_sli4_cq_event_alloc(phba);
8044 spin_unlock_irqrestore(&phba->hbalock, iflags);
8045 return cq_event;
8046}
8047
8048/**
8049 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8050 * @phba: pointer to lpfc hba data structure.
8051 * @cq_event: pointer to the completion queue event to be freed.
8052 *
8053 * This routine is the lock free version of the API invoked to release a
8054 * completion-queue event back into the free pool.
8055 **/
8056void
8057__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8058 struct lpfc_cq_event *cq_event)
8059{
8060 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
8061}
8062
8063/**
8064 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8065 * @phba: pointer to lpfc hba data structure.
8066 * @cq_event: pointer to the completion queue event to be freed.
8067 *
8068 * This routine is the lock version of the API invoked to release a
8069 * completion-queue event back into the free pool.
8070 **/
8071void
8072lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8073 struct lpfc_cq_event *cq_event)
8074{
8075 unsigned long iflags;
8076 spin_lock_irqsave(&phba->hbalock, iflags);
8077 __lpfc_sli4_cq_event_release(phba, cq_event);
8078 spin_unlock_irqrestore(&phba->hbalock, iflags);
8079}
8080
8081/**
8082 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
8083 * @phba: pointer to lpfc hba data structure.
8084 *
8085 * This routine is to free all the pending completion-queue events to the
8086 * back into the free pool for device reset.
8087 **/
8088static void
8089lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8090{
8091 LIST_HEAD(cqelist);
8092 struct lpfc_cq_event *cqe;
8093 unsigned long iflags;
8094
8095 /* Retrieve all the pending WCQEs from pending WCQE lists */
8096 spin_lock_irqsave(&phba->hbalock, iflags);
8097 /* Pending FCP XRI abort events */
8098 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8099 &cqelist);
8100 /* Pending ELS XRI abort events */
8101 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8102 &cqelist);
8103 /* Pending asynnc events */
8104 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8105 &cqelist);
8106 spin_unlock_irqrestore(&phba->hbalock, iflags);
8107
8108 while (!list_empty(&cqelist)) {
8109 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8110 lpfc_sli4_cq_event_release(phba, cqe);
8111 }
8112}
8113
8114/**
8115 * lpfc_pci_function_reset - Reset pci function.
8116 * @phba: pointer to lpfc hba data structure.
8117 *
8118 * This routine is invoked to request a PCI function reset. It will destroys
8119 * all resources assigned to the PCI function which originates this request.
8120 *
8121 * Return codes
af901ca1 8122 * 0 - successful
25985edc 8123 * -ENOMEM - No available memory
d439d286 8124 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 8125 **/
8126int
8127lpfc_pci_function_reset(struct lpfc_hba *phba)
8128{
8129 LPFC_MBOXQ_t *mboxq;
2fcee4bf 8130 uint32_t rc = 0, if_type;
da0436e9 8131 uint32_t shdr_status, shdr_add_status;
2f6fa2c9
JS		 8132 uint32_t rdy_chk;
8133 uint32_t port_reset = 0;
da0436e9 8134 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 8135 struct lpfc_register reg_data;
2b81f942 8136 uint16_t devid;
da0436e9 8137
2fcee4bf
JS		 8138 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8139 switch (if_type) {
8140 case LPFC_SLI_INTF_IF_TYPE_0:
8141 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8142 GFP_KERNEL);
8143 if (!mboxq) {
8144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8145 "0494 Unable to allocate memory for "
8146 "issuing SLI_FUNCTION_RESET mailbox "
8147 "command\n");
8148 return -ENOMEM;
8149 }
da0436e9 8150
2fcee4bf
JS		 8151 /* Setup PCI function reset mailbox-ioctl command */
8152 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8153 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8154 LPFC_SLI4_MBX_EMBED);
8155 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8156 shdr = (union lpfc_sli4_cfg_shdr *)
8157 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8158 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8159 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8160 &shdr->response);
8161 if (rc != MBX_TIMEOUT)
8162 mempool_free(mboxq, phba->mbox_mem_pool);
8163 if (shdr_status || shdr_add_status || rc) {
8164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8165 "0495 SLI_FUNCTION_RESET mailbox "
8166 "failed with status x%x add_status x%x,"
8167 " mbx status x%x\n",
8168 shdr_status, shdr_add_status, rc);
8169 rc = -ENXIO;
8170 }
8171 break;
8172 case LPFC_SLI_INTF_IF_TYPE_2:
2f6fa2c9
JS		 8173wait:
8174 /*
8175 * Poll the Port Status Register and wait for RDY for
8176 * up to 30 seconds. If the port doesn't respond, treat
8177 * it as an error.
8178 */
77d093fb 8179 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
2f6fa2c9
JS		 8180 if (lpfc_readl(phba->sli4_hba.u.if_type2.
8181 STATUSregaddr, &reg_data.word0)) {
8182 rc = -ENODEV;
8183 goto out;
8184 }
8185 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8186 break;
8187 msleep(20);
8188 }
8189
8190 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8191 phba->work_status[0] = readl(
8192 phba->sli4_hba.u.if_type2.ERR1regaddr);
8193 phba->work_status[1] = readl(
8194 phba->sli4_hba.u.if_type2.ERR2regaddr);
8195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8196 "2890 Port not ready, port status reg "
8197 "0x%x error 1=0x%x, error 2=0x%x\n",
8198 reg_data.word0,
8199 phba->work_status[0],
8200 phba->work_status[1]);
8201 rc = -ENODEV;
8202 goto out;
8203 }
8204
8205 if (!port_reset) {
8206 /*
8207 * Reset the port now
8208 */
2fcee4bf
JS		 8209 reg_data.word0 = 0;
8210 bf_set(lpfc_sliport_ctrl_end, &reg_data,
8211 LPFC_SLIPORT_LITTLE_ENDIAN);
8212 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8213 LPFC_SLIPORT_INIT_PORT);
8214 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8215 CTRLregaddr);
8fcb8acd 8216 /* flush */
2b81f942
JS		 8217 pci_read_config_word(phba->pcidev,
8218 PCI_DEVICE_ID, &devid);
2fcee4bf 8219
2f6fa2c9
JS		 8220 port_reset = 1;
8221 msleep(20);
8222 goto wait;
8223 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8224 rc = -ENODEV;
8225 goto out;
2fcee4bf
JS		 8226 }
8227 break;
2f6fa2c9 8228
2fcee4bf
JS		 8229 case LPFC_SLI_INTF_IF_TYPE_1:
8230 default:
8231 break;
da0436e9 8232 }
2fcee4bf 8233
73d91e50 8234out:
2fcee4bf 8235 /* Catch the not-ready port failure after a port reset. */
2f6fa2c9 8236 if (rc) {
229adb0e
JS		 8237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8238 "3317 HBA not functional: IP Reset Failed "
2f6fa2c9 8239 "try: echo fw_reset > board_mode\n");
2fcee4bf 8240 rc = -ENODEV;
229adb0e 8241 }
2fcee4bf 8242
da0436e9
JS		 8243 return rc;
8244}
8245
da0436e9
JS		 8246/**
8247 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8248 * @phba: pointer to lpfc hba data structure.
8249 *
8250 * This routine is invoked to set up the PCI device memory space for device
8251 * with SLI-4 interface spec.
8252 *
8253 * Return codes
af901ca1 8254 * 0 - successful
da0436e9
JS		 8255 * other values - error
8256 **/
8257static int
8258lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8259{
8260 struct pci_dev *pdev;
8261 unsigned long bar0map_len, bar1map_len, bar2map_len;
8262 int error = -ENODEV;
2fcee4bf 8263 uint32_t if_type;
da0436e9
JS		 8264
8265 /* Obtain PCI device reference */
8266 if (!phba->pcidev)
8267 return error;
8268 else
8269 pdev = phba->pcidev;
8270
8271 /* Set the device DMA mask size */
8e68597d
MR		 8272 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8273 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8274 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8275 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 8276 return error;
8e68597d
MR		 8277 }
8278 }
da0436e9 8279
2fcee4bf
JS		 8280 /*
8281 * The BARs and register set definitions and offset locations are
8282 * dependent on the if_type.
8283 */
8284 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8285 &phba->sli4_hba.sli_intf.word0)) {
8286 return error;
8287 }
8288
8289 /* There is no SLI3 failback for SLI4 devices. */
8290 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8291 LPFC_SLI_INTF_VALID) {
8292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8293 "2894 SLI_INTF reg contents invalid "
8294 "sli_intf reg 0x%x\n",
8295 phba->sli4_hba.sli_intf.word0);
8296 return error;
8297 }
8298
8299 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8300 /*
8301 * Get the bus address of SLI4 device Bar regions and the
8302 * number of bytes required by each mapping. The mapping of the
8303 * particular PCI BARs regions is dependent on the type of
8304 * SLI4 device.
da0436e9 8305 */
f5ca6f2e
JS		 8306 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8307 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8308 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
2fcee4bf
JS		 8309
8310 /*
8311 * Map SLI4 PCI Config Space Register base to a kernel virtual
8312 * addr
8313 */
8314 phba->sli4_hba.conf_regs_memmap_p =
8315 ioremap(phba->pci_bar0_map, bar0map_len);
8316 if (!phba->sli4_hba.conf_regs_memmap_p) {
8317 dev_printk(KERN_ERR, &pdev->dev,
8318 "ioremap failed for SLI4 PCI config "
8319 "registers.\n");
8320 goto out;
8321 }
f5ca6f2e 8322 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
2fcee4bf
JS		 8323 /* Set up BAR0 PCI config space register memory map */
8324 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 8325 } else {
8326 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8327 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 8328 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8329 dev_printk(KERN_ERR, &pdev->dev,
8330 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8331 goto out;
8332 }
8333 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 8334 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 8335 if (!phba->sli4_hba.conf_regs_memmap_p) {
8336 dev_printk(KERN_ERR, &pdev->dev,
8337 "ioremap failed for SLI4 PCI config "
8338 "registers.\n");
8339 goto out;
8340 }
8341 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 8342 }
8343
c31098ce 8344 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
f5ca6f2e 8345 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
2fcee4bf
JS		 8346 /*
8347 * Map SLI4 if type 0 HBA Control Register base to a kernel
8348 * virtual address and setup the registers.
8349 */
f5ca6f2e
JS		 8350 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8351 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
2fcee4bf 8352 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 8353 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 8354 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8355 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 8356 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 8357 goto out_iounmap_conf;
8358 }
f5ca6f2e 8359 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
2fcee4bf 8360 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 8361 }
8362
c31098ce 8363 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
f5ca6f2e 8364 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
2fcee4bf
JS		 8365 /*
8366 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8367 * virtual address and setup the registers.
8368 */
f5ca6f2e
JS		 8369 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8370 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
2fcee4bf 8371 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 8372 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 8373 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8374 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 8375 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 8376 goto out_iounmap_ctrl;
8377 }
f5ca6f2e 8378 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
2fcee4bf
JS		 8379 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8380 if (error)
8381 goto out_iounmap_all;
da0436e9
JS		 8382 }
8383
da0436e9
JS		 8384 return 0;
8385
8386out_iounmap_all:
8387 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8388out_iounmap_ctrl:
8389 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8390out_iounmap_conf:
8391 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8392out:
8393 return error;
8394}
8395
8396/**
8397 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8398 * @phba: pointer to lpfc hba data structure.
8399 *
8400 * This routine is invoked to unset the PCI device memory space for device
8401 * with SLI-4 interface spec.
8402 **/
8403static void
8404lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8405{
2e90f4b5
JS		 8406 uint32_t if_type;
8407 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
da0436e9 8408
2e90f4b5
JS		 8409 switch (if_type) {
8410 case LPFC_SLI_INTF_IF_TYPE_0:
8411 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8412 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8413 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8414 break;
8415 case LPFC_SLI_INTF_IF_TYPE_2:
8416 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8417 break;
8418 case LPFC_SLI_INTF_IF_TYPE_1:
8419 default:
8420 dev_printk(KERN_ERR, &phba->pcidev->dev,
8421 "FATAL - unsupported SLI4 interface type - %d\n",
8422 if_type);
8423 break;
8424 }
da0436e9
JS		 8425}
8426
8427/**
8428 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8429 * @phba: pointer to lpfc hba data structure.
8430 *
8431 * This routine is invoked to enable the MSI-X interrupt vectors to device
4f871e1b
AG		 8432 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8433 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8434 * once invoked, enables either all or nothing, depending on the current
da0436e9
JS		 8435 * availability of PCI vector resources. The device driver is responsible
8436 * for calling the individual request_irq() to register each MSI-X vector
8437 * with a interrupt handler, which is done in this function. Note that
8438 * later when device is unloading, the driver should always call free_irq()
8439 * on all MSI-X vectors it has done request_irq() on before calling
8440 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8441 * will be left with MSI-X enabled and leaks its vectors.
8442 *
8443 * Return codes
af901ca1 8444 * 0 - successful
da0436e9
JS		 8445 * other values - error
8446 **/
8447static int
8448lpfc_sli_enable_msix(struct lpfc_hba *phba)
8449{
8450 int rc, i;
8451 LPFC_MBOXQ_t *pmb;
8452
8453 /* Set up MSI-X multi-message vectors */
8454 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8455 phba->msix_entries[i].entry = i;
8456
8457 /* Configure MSI-X capability structure */
4f871e1b
AG		 8458 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8459 LPFC_MSIX_VECTORS);
da0436e9
JS		 8460 if (rc) {
8461 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8462 "0420 PCI enable MSI-X failed (%d)\n", rc);
029165ac 8463 goto vec_fail_out;
da0436e9
JS		 8464 }
8465 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8466 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8467 "0477 MSI-X entry[%d]: vector=x%x "
8468 "message=%d\n", i,
8469 phba->msix_entries[i].vector,
8470 phba->msix_entries[i].entry);
8471 /*
8472 * Assign MSI-X vectors to interrupt handlers
8473 */
8474
8475 /* vector-0 is associated to slow-path handler */
8476 rc = request_irq(phba->msix_entries[0].vector,
ed243d37 8477 &lpfc_sli_sp_intr_handler, 0,
da0436e9
JS		 8478 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8479 if (rc) {
8480 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8481 "0421 MSI-X slow-path request_irq failed "
8482 "(%d)\n", rc);
8483 goto msi_fail_out;
8484 }
8485
8486 /* vector-1 is associated to fast-path handler */
8487 rc = request_irq(phba->msix_entries[1].vector,
ed243d37 8488 &lpfc_sli_fp_intr_handler, 0,
da0436e9
JS		 8489 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8490
8491 if (rc) {
8492 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8493 "0429 MSI-X fast-path request_irq failed "
8494 "(%d)\n", rc);
8495 goto irq_fail_out;
8496 }
8497
8498 /*
8499 * Configure HBA MSI-X attention conditions to messages
8500 */
8501 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8502
8503 if (!pmb) {
8504 rc = -ENOMEM;
8505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8506 "0474 Unable to allocate memory for issuing "
8507 "MBOX_CONFIG_MSI command\n");
8508 goto mem_fail_out;
8509 }
8510 rc = lpfc_config_msi(phba, pmb);
8511 if (rc)
8512 goto mbx_fail_out;
8513 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8514 if (rc != MBX_SUCCESS) {
8515 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8516 "0351 Config MSI mailbox command failed, "
8517 "mbxCmd x%x, mbxStatus x%x\n",
8518 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8519 goto mbx_fail_out;
8520 }
8521
8522 /* Free memory allocated for mailbox command */
8523 mempool_free(pmb, phba->mbox_mem_pool);
8524 return rc;
8525
8526mbx_fail_out:
8527 /* Free memory allocated for mailbox command */
8528 mempool_free(pmb, phba->mbox_mem_pool);
8529
8530mem_fail_out:
8531 /* free the irq already requested */
8532 free_irq(phba->msix_entries[1].vector, phba);
8533
8534irq_fail_out:
8535 /* free the irq already requested */
8536 free_irq(phba->msix_entries[0].vector, phba);
8537
8538msi_fail_out:
8539 /* Unconfigure MSI-X capability structure */
8540 pci_disable_msix(phba->pcidev);
029165ac
AG		 8541
8542vec_fail_out:
da0436e9
JS		 8543 return rc;
8544}
8545
8546/**
8547 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8548 * @phba: pointer to lpfc hba data structure.
8549 *
8550 * This routine is invoked to release the MSI-X vectors and then disable the
8551 * MSI-X interrupt mode to device with SLI-3 interface spec.
8552 **/
8553static void
8554lpfc_sli_disable_msix(struct lpfc_hba *phba)
8555{
8556 int i;
8557
8558 /* Free up MSI-X multi-message vectors */
8559 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8560 free_irq(phba->msix_entries[i].vector, phba);
8561 /* Disable MSI-X */
8562 pci_disable_msix(phba->pcidev);
8563
8564 return;
8565}
8566
8567/**
8568 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8569 * @phba: pointer to lpfc hba data structure.
8570 *
8571 * This routine is invoked to enable the MSI interrupt mode to device with
8572 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8573 * enable the MSI vector. The device driver is responsible for calling the
8574 * request_irq() to register MSI vector with a interrupt the handler, which
8575 * is done in this function.
8576 *
8577 * Return codes
af901ca1 8578 * 0 - successful
da0436e9
JS		 8579 * other values - error
8580 */
8581static int
8582lpfc_sli_enable_msi(struct lpfc_hba *phba)
8583{
8584 int rc;
8585
8586 rc = pci_enable_msi(phba->pcidev);
8587 if (!rc)
8588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8589 "0462 PCI enable MSI mode success.\n");
8590 else {
8591 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8592 "0471 PCI enable MSI mode failed (%d)\n", rc);
8593 return rc;
8594 }
8595
8596 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
ed243d37 8597 0, LPFC_DRIVER_NAME, phba);
da0436e9
JS		 8598 if (rc) {
8599 pci_disable_msi(phba->pcidev);
8600 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8601 "0478 MSI request_irq failed (%d)\n", rc);
8602 }
8603 return rc;
8604}
8605
8606/**
8607 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8608 * @phba: pointer to lpfc hba data structure.
8609 *
8610 * This routine is invoked to disable the MSI interrupt mode to device with
8611 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8612 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8613 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8614 * its vector.
8615 */
8616static void
8617lpfc_sli_disable_msi(struct lpfc_hba *phba)
8618{
8619 free_irq(phba->pcidev->irq, phba);
8620 pci_disable_msi(phba->pcidev);
8621 return;
8622}
8623
8624/**
8625 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8626 * @phba: pointer to lpfc hba data structure.
8627 *
8628 * This routine is invoked to enable device interrupt and associate driver's
8629 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8630 * spec. Depends on the interrupt mode configured to the driver, the driver
8631 * will try to fallback from the configured interrupt mode to an interrupt
8632 * mode which is supported by the platform, kernel, and device in the order
8633 * of:
8634 * MSI-X -> MSI -> IRQ.
8635 *
8636 * Return codes
af901ca1 8637 * 0 - successful
da0436e9
JS		 8638 * other values - error
8639 **/
8640static uint32_t
8641lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8642{
8643 uint32_t intr_mode = LPFC_INTR_ERROR;
8644 int retval;
8645
8646 if (cfg_mode == 2) {
8647 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8648 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8649 if (!retval) {
8650 /* Now, try to enable MSI-X interrupt mode */
8651 retval = lpfc_sli_enable_msix(phba);
8652 if (!retval) {
8653 /* Indicate initialization to MSI-X mode */
8654 phba->intr_type = MSIX;
8655 intr_mode = 2;
8656 }
8657 }
8658 }
8659
8660 /* Fallback to MSI if MSI-X initialization failed */
8661 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8662 retval = lpfc_sli_enable_msi(phba);
8663 if (!retval) {
8664 /* Indicate initialization to MSI mode */
8665 phba->intr_type = MSI;
8666 intr_mode = 1;
8667 }
8668 }
8669
8670 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8671 if (phba->intr_type == NONE) {
8672 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8673 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8674 if (!retval) {
8675 /* Indicate initialization to INTx mode */
8676 phba->intr_type = INTx;
8677 intr_mode = 0;
8678 }
8679 }
8680 return intr_mode;
8681}
8682
8683/**
8684 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8685 * @phba: pointer to lpfc hba data structure.
8686 *
8687 * This routine is invoked to disable device interrupt and disassociate the
8688 * driver's interrupt handler(s) from interrupt vector(s) to device with
8689 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8690 * release the interrupt vector(s) for the message signaled interrupt.
8691 **/
8692static void
8693lpfc_sli_disable_intr(struct lpfc_hba *phba)
8694{
8695 /* Disable the currently initialized interrupt mode */
8696 if (phba->intr_type == MSIX)
8697 lpfc_sli_disable_msix(phba);
8698 else if (phba->intr_type == MSI)
8699 lpfc_sli_disable_msi(phba);
8700 else if (phba->intr_type == INTx)
8701 free_irq(phba->pcidev->irq, phba);
8702
8703 /* Reset interrupt management states */
8704 phba->intr_type = NONE;
8705 phba->sli.slistat.sli_intr = 0;
8706
8707 return;
8708}
8709
7bb03bbf
JS		 8710/**
8711 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8712 * @phba: pointer to lpfc hba data structure.
8713 *
8714 * Find next available CPU to use for IRQ to CPU affinity.
8715 */
8716static int
8717lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8718{
8719 struct lpfc_vector_map_info *cpup;
8720 int cpu;
8721
8722 cpup = phba->sli4_hba.cpu_map;
8723 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8724 /* CPU must be online */
8725 if (cpu_online(cpu)) {
8726 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8727 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8728 (cpup->phys_id == phys_id)) {
8729 return cpu;
8730 }
8731 }
8732 cpup++;
8733 }
8734
8735 /*
8736 * If we get here, we have used ALL CPUs for the specific
8737 * phys_id. Now we need to clear out lpfc_used_cpu and start
8738 * reusing CPUs.
8739 */
8740
8741 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8742 if (lpfc_used_cpu[cpu] == phys_id)
8743 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8744 }
8745
8746 cpup = phba->sli4_hba.cpu_map;
8747 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8748 /* CPU must be online */
8749 if (cpu_online(cpu)) {
8750 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8751 (cpup->phys_id == phys_id)) {
8752 return cpu;
8753 }
8754 }
8755 cpup++;
8756 }
8757 return LPFC_VECTOR_MAP_EMPTY;
8758}
8759
8760/**
8761 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8762 * @phba: pointer to lpfc hba data structure.
8763 * @vectors: number of HBA vectors
8764 *
8765 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8766 * affinization across multple physical CPUs (numa nodes).
8767 * In addition, this routine will assign an IO channel for each CPU
8768 * to use when issuing I/Os.
8769 */
8770static int
8771lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8772{
8773 int i, idx, saved_chann, used_chann, cpu, phys_id;
ec2087a7
JS		 8774 int max_phys_id, min_phys_id;
8775 int num_io_channel, first_cpu, chan;
7bb03bbf
JS		 8776 struct lpfc_vector_map_info *cpup;
8777#ifdef CONFIG_X86
8778 struct cpuinfo_x86 *cpuinfo;
8779#endif
7bb03bbf
JS		 8780 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8781
8782 /* If there is no mapping, just return */
8783 if (!phba->cfg_fcp_cpu_map)
8784 return 1;
8785
8786 /* Init cpu_map array */
8787 memset(phba->sli4_hba.cpu_map, 0xff,
8788 (sizeof(struct lpfc_vector_map_info) *
8789 phba->sli4_hba.num_present_cpu));
8790
8791 max_phys_id = 0;
ec2087a7 8792 min_phys_id = 0xff;
7bb03bbf
JS		 8793 phys_id = 0;
8794 num_io_channel = 0;
8795 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8796
8797 /* Update CPU map with physical id and core id of each CPU */
8798 cpup = phba->sli4_hba.cpu_map;
8799 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8800#ifdef CONFIG_X86
8801 cpuinfo = &cpu_data(cpu);
8802 cpup->phys_id = cpuinfo->phys_proc_id;
8803 cpup->core_id = cpuinfo->cpu_core_id;
8804#else
8805 /* No distinction between CPUs for other platforms */
8806 cpup->phys_id = 0;
8807 cpup->core_id = 0;
8808#endif
8809
8810 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8811 "3328 CPU physid %d coreid %d\n",
8812 cpup->phys_id, cpup->core_id);
8813
8814 if (cpup->phys_id > max_phys_id)
8815 max_phys_id = cpup->phys_id;
ec2087a7
JS		 8816 if (cpup->phys_id < min_phys_id)
8817 min_phys_id = cpup->phys_id;
7bb03bbf
JS		 8818 cpup++;
8819 }
8820
ec2087a7 8821 phys_id = min_phys_id;
7bb03bbf
JS		 8822 /* Now associate the HBA vectors with specific CPUs */
8823 for (idx = 0; idx < vectors; idx++) {
8824 cpup = phba->sli4_hba.cpu_map;
8825 cpu = lpfc_find_next_cpu(phba, phys_id);
8826 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8827
8828 /* Try for all phys_id's */
8829 for (i = 1; i < max_phys_id; i++) {
8830 phys_id++;
8831 if (phys_id > max_phys_id)
ec2087a7 8832 phys_id = min_phys_id;
7bb03bbf
JS		 8833 cpu = lpfc_find_next_cpu(phba, phys_id);
8834 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8835 continue;
8836 goto found;
8837 }
8838
ec2087a7
JS		 8839 /* Use round robin for scheduling */
8840 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8841 chan = 0;
8842 cpup = phba->sli4_hba.cpu_map;
8843 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8844 cpup->channel_id = chan;
8845 cpup++;
8846 chan++;
8847 if (chan >= phba->cfg_fcp_io_channel)
8848 chan = 0;
8849 }
8850
7bb03bbf
JS		 8851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8852 "3329 Cannot set affinity:"
8853 "Error mapping vector %d (%d)\n",
8854 idx, vectors);
8855 return 0;
8856 }
8857found:
8858 cpup += cpu;
8859 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8860 lpfc_used_cpu[cpu] = phys_id;
8861
8862 /* Associate vector with selected CPU */
8863 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8864
8865 /* Associate IO channel with selected CPU */
8866 cpup->channel_id = idx;
8867 num_io_channel++;
8868
8869 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8870 first_cpu = cpu;
8871
8872 /* Now affinitize to the selected CPU */
7bb03bbf 8873 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
c0365c06 8874 vector, get_cpu_mask(cpu));
7bb03bbf
JS		 8875
8876 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8877 "3330 Set Affinity: CPU %d channel %d "
8878 "irq %d (%x)\n",
8879 cpu, cpup->channel_id,
8880 phba->sli4_hba.msix_entries[idx].vector, i);
8881
8882 /* Spread vector mapping across multple physical CPU nodes */
8883 phys_id++;
8884 if (phys_id > max_phys_id)
ec2087a7 8885 phys_id = min_phys_id;
7bb03bbf
JS		 8886 }
8887
8888 /*
8889 * Finally fill in the IO channel for any remaining CPUs.
8890 * At this point, all IO channels have been assigned to a specific
8891 * MSIx vector, mapped to a specific CPU.
8892 * Base the remaining IO channel assigned, to IO channels already
8893 * assigned to other CPUs on the same phys_id.
8894 */
ec2087a7 8895 for (i = min_phys_id; i <= max_phys_id; i++) {
7bb03bbf
JS		 8896 /*
8897 * If there are no io channels already mapped to
8898 * this phys_id, just round robin thru the io_channels.
8899 * Setup chann[] for round robin.
8900 */
8901 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8902 chann[idx] = idx;
8903
8904 saved_chann = 0;
8905 used_chann = 0;
8906
8907 /*
8908 * First build a list of IO channels already assigned
8909 * to this phys_id before reassigning the same IO
8910 * channels to the remaining CPUs.
8911 */
8912 cpup = phba->sli4_hba.cpu_map;
8913 cpu = first_cpu;
8914 cpup += cpu;
8915 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8916 idx++) {
8917 if (cpup->phys_id == i) {
8918 /*
8919 * Save any IO channels that are
8920 * already mapped to this phys_id.
8921 */
8922 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
6690e0d4
JS		 8923 if (saved_chann <=
8924 LPFC_FCP_IO_CHAN_MAX) {
8925 chann[saved_chann] =
8926 cpup->channel_id;
8927 saved_chann++;
8928 }
7bb03bbf
JS		 8929 goto out;
8930 }
8931
8932 /* See if we are using round-robin */
8933 if (saved_chann == 0)
8934 saved_chann =
8935 phba->cfg_fcp_io_channel;
8936
8937 /* Associate next IO channel with CPU */
8938 cpup->channel_id = chann[used_chann];
8939 num_io_channel++;
8940 used_chann++;
8941 if (used_chann == saved_chann)
8942 used_chann = 0;
8943
8944 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8945 "3331 Set IO_CHANN "
8946 "CPU %d channel %d\n",
8947 idx, cpup->channel_id);
8948 }
8949out:
8950 cpu++;
8951 if (cpu >= phba->sli4_hba.num_present_cpu) {
8952 cpup = phba->sli4_hba.cpu_map;
8953 cpu = 0;
8954 } else {
8955 cpup++;
8956 }
8957 }
8958 }
8959
8960 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8961 cpup = phba->sli4_hba.cpu_map;
8962 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8963 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8964 cpup->channel_id = 0;
8965 num_io_channel++;
8966
8967 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8968 "3332 Assign IO_CHANN "
8969 "CPU %d channel %d\n",
8970 idx, cpup->channel_id);
8971 }
8972 cpup++;
8973 }
8974 }
8975
8976 /* Sanity check */
8977 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8979 "3333 Set affinity mismatch:"
ec2087a7 8980 "%d chann != %d cpus: %d vectors\n",
7bb03bbf
JS		 8981 num_io_channel, phba->sli4_hba.num_present_cpu,
8982 vectors);
8983
ec2087a7 8984 /* Enable using cpu affinity for scheduling */
7bb03bbf
JS		 8985 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8986 return 1;
8987}
8988
8989
da0436e9
JS		 8990/**
8991 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8992 * @phba: pointer to lpfc hba data structure.
8993 *
8994 * This routine is invoked to enable the MSI-X interrupt vectors to device
4f871e1b
AG		 8995 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8996 * is called to enable the MSI-X vectors. The device driver is responsible
8997 * for calling the individual request_irq() to register each MSI-X vector
8998 * with a interrupt handler, which is done in this function. Note that
8999 * later when device is unloading, the driver should always call free_irq()
9000 * on all MSI-X vectors it has done request_irq() on before calling
9001 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
9002 * will be left with MSI-X enabled and leaks its vectors.
da0436e9
JS		 9003 *
9004 * Return codes
af901ca1 9005 * 0 - successful
da0436e9
JS		 9006 * other values - error
9007 **/
9008static int
9009lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9010{
75baf696 9011 int vectors, rc, index;
da0436e9
JS		 9012
9013 /* Set up MSI-X multi-message vectors */
82c3e9ba 9014 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
da0436e9
JS		 9015 phba->sli4_hba.msix_entries[index].entry = index;
9016
9017 /* Configure MSI-X capability structure */
82c3e9ba 9018 vectors = phba->cfg_fcp_io_channel;
1ba981fd
JS		 9019 if (phba->cfg_fof) {
9020 phba->sli4_hba.msix_entries[index].entry = index;
9021 vectors++;
9022 }
4f871e1b
AG		 9023 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
9024 2, vectors);
9025 if (rc < 0) {
da0436e9
JS		 9026 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9027 "0484 PCI enable MSI-X failed (%d)\n", rc);
029165ac 9028 goto vec_fail_out;
da0436e9 9029 }
4f871e1b 9030 vectors = rc;
75baf696 9031
da0436e9 9032 /* Log MSI-X vector assignment */
75baf696 9033 for (index = 0; index < vectors; index++)
da0436e9
JS		 9034 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9035 "0489 MSI-X entry[%d]: vector=x%x "
9036 "message=%d\n", index,
9037 phba->sli4_hba.msix_entries[index].vector,
9038 phba->sli4_hba.msix_entries[index].entry);
67d12733 9039
7bb03bbf 9040 /* Assign MSI-X vectors to interrupt handlers */
67d12733 9041 for (index = 0; index < vectors; index++) {
4305f183 9042 memset(&phba->sli4_hba.handler_name[index], 0, 16);
a2fc4aef
JS		 9043 snprintf((char *)&phba->sli4_hba.handler_name[index],
9044 LPFC_SLI4_HANDLER_NAME_SZ,
4305f183 9045 LPFC_DRIVER_HANDLER_NAME"%d", index);
da0436e9 9046
67d12733
JS		 9047 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9048 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
ba20c853 9049 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
1ba981fd
JS		 9050 if (phba->cfg_fof && (index == (vectors - 1)))
9051 rc = request_irq(
9052 phba->sli4_hba.msix_entries[index].vector,
ed243d37 9053 &lpfc_sli4_fof_intr_handler, 0,
1ba981fd
JS		 9054 (char *)&phba->sli4_hba.handler_name[index],
9055 &phba->sli4_hba.fcp_eq_hdl[index]);
9056 else
9057 rc = request_irq(
9058 phba->sli4_hba.msix_entries[index].vector,
ed243d37 9059 &lpfc_sli4_hba_intr_handler, 0,
4305f183 9060 (char *)&phba->sli4_hba.handler_name[index],
67d12733 9061 &phba->sli4_hba.fcp_eq_hdl[index]);
da0436e9
JS		 9062 if (rc) {
9063 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9064 "0486 MSI-X fast-path (%d) "
9065 "request_irq failed (%d)\n", index, rc);
9066 goto cfg_fail_out;
9067 }
9068 }
9069
1ba981fd
JS		 9070 if (phba->cfg_fof)
9071 vectors--;
9072
82c3e9ba
JS		 9073 if (vectors != phba->cfg_fcp_io_channel) {
9074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9075 "3238 Reducing IO channels to match number of "
9076 "MSI-X vectors, requested %d got %d\n",
9077 phba->cfg_fcp_io_channel, vectors);
9078 phba->cfg_fcp_io_channel = vectors;
9079 }
7bb03bbf 9080
8b0dff14
JS		 9081 if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
9082 lpfc_sli4_set_affinity(phba, vectors);
da0436e9
JS		 9083 return rc;
9084
9085cfg_fail_out:
9086 /* free the irq already requested */
acbd8616
JS		 9087 for (--index; index >= 0; index--) {
9088 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9089 vector, NULL);
67d12733
JS		 9090 free_irq(phba->sli4_hba.msix_entries[index].vector,
9091 &phba->sli4_hba.fcp_eq_hdl[index]);
acbd8616 9092 }
da0436e9 9093
da0436e9
JS		 9094 /* Unconfigure MSI-X capability structure */
9095 pci_disable_msix(phba->pcidev);
029165ac
AG		 9096
9097vec_fail_out:
da0436e9
JS		 9098 return rc;
9099}
9100
9101/**
9102 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9103 * @phba: pointer to lpfc hba data structure.
9104 *
9105 * This routine is invoked to release the MSI-X vectors and then disable the
9106 * MSI-X interrupt mode to device with SLI-4 interface spec.
9107 **/
9108static void
9109lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9110{
9111 int index;
9112
9113 /* Free up MSI-X multi-message vectors */
acbd8616
JS		 9114 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9115 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9116 vector, NULL);
da0436e9 9117 free_irq(phba->sli4_hba.msix_entries[index].vector,
67d12733 9118 &phba->sli4_hba.fcp_eq_hdl[index]);
acbd8616 9119 }
1ba981fd
JS		 9120 if (phba->cfg_fof) {
9121 free_irq(phba->sli4_hba.msix_entries[index].vector,
9122 &phba->sli4_hba.fcp_eq_hdl[index]);
9123 }
da0436e9
JS		 9124 /* Disable MSI-X */
9125 pci_disable_msix(phba->pcidev);
9126
9127 return;
9128}
9129
9130/**
9131 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9132 * @phba: pointer to lpfc hba data structure.
9133 *
9134 * This routine is invoked to enable the MSI interrupt mode to device with
9135 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9136 * to enable the MSI vector. The device driver is responsible for calling
9137 * the request_irq() to register MSI vector with a interrupt the handler,
9138 * which is done in this function.
9139 *
9140 * Return codes
af901ca1 9141 * 0 - successful
da0436e9
JS		 9142 * other values - error
9143 **/
9144static int
9145lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9146{
9147 int rc, index;
9148
9149 rc = pci_enable_msi(phba->pcidev);
9150 if (!rc)
9151 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9152 "0487 PCI enable MSI mode success.\n");
9153 else {
9154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9155 "0488 PCI enable MSI mode failed (%d)\n", rc);
9156 return rc;
9157 }
9158
9159 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
ed243d37 9160 0, LPFC_DRIVER_NAME, phba);
da0436e9
JS		 9161 if (rc) {
9162 pci_disable_msi(phba->pcidev);
9163 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9164 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 9165 return rc;
da0436e9
JS		 9166 }
9167
67d12733 9168 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
da0436e9
JS		 9169 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9170 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9171 }
9172
1ba981fd
JS		 9173 if (phba->cfg_fof) {
9174 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9175 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9176 }
75baf696 9177 return 0;
da0436e9
JS		 9178}
9179
9180/**
9181 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9182 * @phba: pointer to lpfc hba data structure.
9183 *
9184 * This routine is invoked to disable the MSI interrupt mode to device with
9185 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9186 * done request_irq() on before calling pci_disable_msi(). Failure to do so
9187 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9188 * its vector.
9189 **/
9190static void
9191lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9192{
9193 free_irq(phba->pcidev->irq, phba);
9194 pci_disable_msi(phba->pcidev);
9195 return;
9196}
9197
9198/**
9199 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9200 * @phba: pointer to lpfc hba data structure.
9201 *
9202 * This routine is invoked to enable device interrupt and associate driver's
9203 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9204 * interface spec. Depends on the interrupt mode configured to the driver,
9205 * the driver will try to fallback from the configured interrupt mode to an
9206 * interrupt mode which is supported by the platform, kernel, and device in
9207 * the order of:
9208 * MSI-X -> MSI -> IRQ.
9209 *
9210 * Return codes
af901ca1 9211 * 0 - successful
da0436e9
JS		 9212 * other values - error
9213 **/
9214static uint32_t
9215lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9216{
9217 uint32_t intr_mode = LPFC_INTR_ERROR;
9218 int retval, index;
9219
9220 if (cfg_mode == 2) {
9221 /* Preparation before conf_msi mbox cmd */
9222 retval = 0;
9223 if (!retval) {
9224 /* Now, try to enable MSI-X interrupt mode */
9225 retval = lpfc_sli4_enable_msix(phba);
9226 if (!retval) {
9227 /* Indicate initialization to MSI-X mode */
9228 phba->intr_type = MSIX;
9229 intr_mode = 2;
9230 }
9231 }
9232 }
9233
9234 /* Fallback to MSI if MSI-X initialization failed */
9235 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9236 retval = lpfc_sli4_enable_msi(phba);
9237 if (!retval) {
9238 /* Indicate initialization to MSI mode */
9239 phba->intr_type = MSI;
9240 intr_mode = 1;
9241 }
9242 }
9243
9244 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9245 if (phba->intr_type == NONE) {
9246 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9247 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9248 if (!retval) {
9249 /* Indicate initialization to INTx mode */
9250 phba->intr_type = INTx;
9251 intr_mode = 0;
67d12733 9252 for (index = 0; index < phba->cfg_fcp_io_channel;
da0436e9
JS		 9253 index++) {
9254 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9255 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
ba20c853
JS		 9256 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9257 fcp_eq_in_use, 1);
da0436e9 9258 }
1ba981fd
JS		 9259 if (phba->cfg_fof) {
9260 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9261 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9262 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9263 fcp_eq_in_use, 1);
9264 }
da0436e9
JS		 9265 }
9266 }
9267 return intr_mode;
9268}
9269
9270/**
9271 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9272 * @phba: pointer to lpfc hba data structure.
9273 *
9274 * This routine is invoked to disable device interrupt and disassociate
9275 * the driver's interrupt handler(s) from interrupt vector(s) to device
9276 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9277 * will release the interrupt vector(s) for the message signaled interrupt.
9278 **/
9279static void
9280lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9281{
9282 /* Disable the currently initialized interrupt mode */
9283 if (phba->intr_type == MSIX)
9284 lpfc_sli4_disable_msix(phba);
9285 else if (phba->intr_type == MSI)
9286 lpfc_sli4_disable_msi(phba);
9287 else if (phba->intr_type == INTx)
9288 free_irq(phba->pcidev->irq, phba);
9289
9290 /* Reset interrupt management states */
9291 phba->intr_type = NONE;
9292 phba->sli.slistat.sli_intr = 0;
9293
9294 return;
9295}
9296
9297/**
9298 * lpfc_unset_hba - Unset SLI3 hba device initialization
9299 * @phba: pointer to lpfc hba data structure.
9300 *
9301 * This routine is invoked to unset the HBA device initialization steps to
9302 * a device with SLI-3 interface spec.
9303 **/
9304static void
9305lpfc_unset_hba(struct lpfc_hba *phba)
9306{
9307 struct lpfc_vport *vport = phba->pport;
9308 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9309
9310 spin_lock_irq(shost->host_lock);
9311 vport->load_flag |= FC_UNLOADING;
9312 spin_unlock_irq(shost->host_lock);
9313
72859909
JS		 9314 kfree(phba->vpi_bmask);
9315 kfree(phba->vpi_ids);
9316
da0436e9
JS		 9317 lpfc_stop_hba_timers(phba);
9318
9319 phba->pport->work_port_events = 0;
9320
9321 lpfc_sli_hba_down(phba);
9322
9323 lpfc_sli_brdrestart(phba);
9324
9325 lpfc_sli_disable_intr(phba);
9326
9327 return;
9328}
9329
5af5eee7
JS		 9330/**
9331 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9332 * @phba: Pointer to HBA context object.
9333 *
9334 * This function is called in the SLI4 code path to wait for completion
9335 * of device's XRIs exchange busy. It will check the XRI exchange busy
9336 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9337 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9338 * I/Os every 30 seconds, log error message, and wait forever. Only when
9339 * all XRI exchange busy complete, the driver unload shall proceed with
9340 * invoking the function reset ioctl mailbox command to the CNA and the
9341 * the rest of the driver unload resource release.
9342 **/
9343static void
9344lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9345{
9346 int wait_time = 0;
9347 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9348 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9349
9350 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9351 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9352 if (!fcp_xri_cmpl)
9353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9354 "2877 FCP XRI exchange busy "
9355 "wait time: %d seconds.\n",
9356 wait_time/1000);
9357 if (!els_xri_cmpl)
9358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9359 "2878 ELS XRI exchange busy "
9360 "wait time: %d seconds.\n",
9361 wait_time/1000);
9362 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9363 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9364 } else {
9365 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9366 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9367 }
9368 fcp_xri_cmpl =
9369 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9370 els_xri_cmpl =
9371 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9372 }
9373}
9374
da0436e9
JS		 9375/**
9376 * lpfc_sli4_hba_unset - Unset the fcoe hba
9377 * @phba: Pointer to HBA context object.
9378 *
9379 * This function is called in the SLI4 code path to reset the HBA's FCoE
9380 * function. The caller is not required to hold any lock. This routine
9381 * issues PCI function reset mailbox command to reset the FCoE function.
9382 * At the end of the function, it calls lpfc_hba_down_post function to
9383 * free any pending commands.
9384 **/
9385static void
9386lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9387{
9388 int wait_cnt = 0;
9389 LPFC_MBOXQ_t *mboxq;
912e3acd 9390 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 9391
9392 lpfc_stop_hba_timers(phba);
9393 phba->sli4_hba.intr_enable = 0;
9394
9395 /*
9396 * Gracefully wait out the potential current outstanding asynchronous
9397 * mailbox command.
9398 */
9399
9400 /* First, block any pending async mailbox command from posted */
9401 spin_lock_irq(&phba->hbalock);
9402 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9403 spin_unlock_irq(&phba->hbalock);
9404 /* Now, trying to wait it out if we can */
9405 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9406 msleep(10);
9407 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9408 break;
9409 }
9410 /* Forcefully release the outstanding mailbox command if timed out */
9411 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9412 spin_lock_irq(&phba->hbalock);
9413 mboxq = phba->sli.mbox_active;
9414 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9415 __lpfc_mbox_cmpl_put(phba, mboxq);
9416 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9417 phba->sli.mbox_active = NULL;
9418 spin_unlock_irq(&phba->hbalock);
9419 }
9420
5af5eee7
JS		 9421 /* Abort all iocbs associated with the hba */
9422 lpfc_sli_hba_iocb_abort(phba);
9423
9424 /* Wait for completion of device XRI exchange busy */
9425 lpfc_sli4_xri_exchange_busy_wait(phba);
9426
da0436e9
JS		 9427 /* Disable PCI subsystem interrupt */
9428 lpfc_sli4_disable_intr(phba);
9429
912e3acd
JS		 9430 /* Disable SR-IOV if enabled */
9431 if (phba->cfg_sriov_nr_virtfn)
9432 pci_disable_sriov(pdev);
9433
da0436e9
JS		 9434 /* Stop kthread signal shall trigger work_done one more time */
9435 kthread_stop(phba->worker_thread);
9436
3677a3a7
JS		 9437 /* Reset SLI4 HBA FCoE function */
9438 lpfc_pci_function_reset(phba);
5350d872 9439 lpfc_sli4_queue_destroy(phba);
3677a3a7 9440
da0436e9
JS		 9441 /* Stop the SLI4 device port */
9442 phba->pport->work_port_events = 0;
9443}
9444
28baac74
JS		 9445 /**
9446 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9447 * @phba: Pointer to HBA context object.
9448 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9449 *
9450 * This function is called in the SLI4 code path to read the port's
9451 * sli4 capabilities.
9452 *
9453 * This function may be be called from any context that can block-wait
9454 * for the completion. The expectation is that this routine is called
9455 * typically from probe_one or from the online routine.
9456 **/
9457int
9458lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9459{
9460 int rc;
9461 struct lpfc_mqe *mqe;
9462 struct lpfc_pc_sli4_params *sli4_params;
9463 uint32_t mbox_tmo;
9464
9465 rc = 0;
9466 mqe = &mboxq->u.mqe;
9467
9468 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 9469 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 9470 if (!phba->sli4_hba.intr_enable)
9471 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9472 else {
a183a15f 9473 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
28baac74
JS		 9474 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9475 }
9476
9477 if (unlikely(rc))
9478 return 1;
9479
9480 sli4_params = &phba->sli4_hba.pc_sli4_params;
9481 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9482 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9483 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9484 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9485 &mqe->un.sli4_params);
9486 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9487 &mqe->un.sli4_params);
9488 sli4_params->proto_types = mqe->un.sli4_params.word3;
9489 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9490 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9491 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9492 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9493 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9494 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9495 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9496 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9497 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9498 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9499 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9500 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9501 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9502 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9503 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9504 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9505 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9506 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9507 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9508 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 9509
9510 /* Make sure that sge_supp_len can be handled by the driver */
9511 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9512 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9513
28baac74
JS		 9514 return rc;
9515}
9516
fedd3b7b
JS		 9517/**
9518 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9519 * @phba: Pointer to HBA context object.
9520 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9521 *
9522 * This function is called in the SLI4 code path to read the port's
9523 * sli4 capabilities.
9524 *
9525 * This function may be be called from any context that can block-wait
9526 * for the completion. The expectation is that this routine is called
9527 * typically from probe_one or from the online routine.
9528 **/
9529int
9530lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9531{
9532 int rc;
9533 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9534 struct lpfc_pc_sli4_params *sli4_params;
a183a15f 9535 uint32_t mbox_tmo;
fedd3b7b
JS		 9536 int length;
9537 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9538
6d368e53
JS		 9539 /*
9540 * By default, the driver assumes the SLI4 port requires RPI
9541 * header postings. The SLI4_PARAM response will correct this
9542 * assumption.
9543 */
9544 phba->sli4_hba.rpi_hdrs_in_use = 1;
9545
fedd3b7b
JS		 9546 /* Read the port's SLI4 Config Parameters */
9547 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9548 sizeof(struct lpfc_sli4_cfg_mhdr));
9549 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9550 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9551 length, LPFC_SLI4_MBX_EMBED);
9552 if (!phba->sli4_hba.intr_enable)
9553 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 9554 else {
9555 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9556 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9557 }
fedd3b7b
JS		 9558 if (unlikely(rc))
9559 return rc;
9560 sli4_params = &phba->sli4_hba.pc_sli4_params;
9561 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9562 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9563 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9564 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9565 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9566 mbx_sli4_parameters);
9567 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9568 mbx_sli4_parameters);
9569 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9570 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9571 else
9572 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9573 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9574 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
1ba981fd 9575 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
fedd3b7b
JS		 9576 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9577 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9578 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9579 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
0c651878 9580 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
fedd3b7b
JS		 9581 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9582 mbx_sli4_parameters);
9583 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9584 mbx_sli4_parameters);
6d368e53
JS		 9585 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9586 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 9587
9588 /* Make sure that sge_supp_len can be handled by the driver */
9589 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9590 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9591
b5c53958
JS		 9592 /*
9593 * Issue IOs with CDB embedded in WQE to minimized the number
9594 * of DMAs the firmware has to do. Setting this to 1 also forces
9595 * the driver to use 128 bytes WQEs for FCP IOs.
9596 */
9597 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
9598 phba->fcp_embed_io = 1;
9599 else
9600 phba->fcp_embed_io = 0;
7bdedb34
JS		 9601
9602 /*
9603 * Check if the SLI port supports MDS Diagnostics
9604 */
9605 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
9606 phba->mds_diags_support = 1;
9607 else
9608 phba->mds_diags_support = 0;
fedd3b7b
JS		 9609 return 0;
9610}
9611
da0436e9
JS		 9612/**
9613 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9614 * @pdev: pointer to PCI device
9615 * @pid: pointer to PCI device identifier
9616 *
9617 * This routine is to be called to attach a device with SLI-3 interface spec
9618 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9619 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9620 * information of the device and driver to see if the driver state that it can
9621 * support this kind of device. If the match is successful, the driver core
9622 * invokes this routine. If this routine determines it can claim the HBA, it
9623 * does all the initialization that it needs to do to handle the HBA properly.
9624 *
9625 * Return code
9626 * 0 - driver can claim the device
9627 * negative value - driver can not claim the device
9628 **/
6f039790 9629static int
da0436e9
JS		 9630lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9631{
9632 struct lpfc_hba *phba;
9633 struct lpfc_vport *vport = NULL;
6669f9bb 9634 struct Scsi_Host *shost = NULL;
da0436e9
JS		 9635 int error;
9636 uint32_t cfg_mode, intr_mode;
9637
9638 /* Allocate memory for HBA structure */
9639 phba = lpfc_hba_alloc(pdev);
9640 if (!phba)
9641 return -ENOMEM;
9642
9643 /* Perform generic PCI device enabling operation */
9644 error = lpfc_enable_pci_dev(phba);
079b5c91 9645 if (error)
da0436e9 9646 goto out_free_phba;
da0436e9
JS		 9647
9648 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9649 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9650 if (error)
9651 goto out_disable_pci_dev;
9652
9653 /* Set up SLI-3 specific device PCI memory space */
9654 error = lpfc_sli_pci_mem_setup(phba);
9655 if (error) {
9656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9657 "1402 Failed to set up pci memory space.\n");
9658 goto out_disable_pci_dev;
9659 }
9660
9661 /* Set up phase-1 common device driver resources */
9662 error = lpfc_setup_driver_resource_phase1(phba);
9663 if (error) {
9664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9665 "1403 Failed to set up driver resource.\n");
9666 goto out_unset_pci_mem_s3;
9667 }
9668
9669 /* Set up SLI-3 specific device driver resources */
9670 error = lpfc_sli_driver_resource_setup(phba);
9671 if (error) {
9672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9673 "1404 Failed to set up driver resource.\n");
9674 goto out_unset_pci_mem_s3;
9675 }
9676
9677 /* Initialize and populate the iocb list per host */
9678 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9679 if (error) {
9680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9681 "1405 Failed to initialize iocb list.\n");
9682 goto out_unset_driver_resource_s3;
9683 }
9684
9685 /* Set up common device driver resources */
9686 error = lpfc_setup_driver_resource_phase2(phba);
9687 if (error) {
9688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9689 "1406 Failed to set up driver resource.\n");
9690 goto out_free_iocb_list;
9691 }
9692
079b5c91
JS		 9693 /* Get the default values for Model Name and Description */
9694 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9695
da0436e9
JS		 9696 /* Create SCSI host to the physical port */
9697 error = lpfc_create_shost(phba);
9698 if (error) {
9699 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9700 "1407 Failed to create scsi host.\n");
9701 goto out_unset_driver_resource;
9702 }
9703
9704 /* Configure sysfs attributes */
9705 vport = phba->pport;
9706 error = lpfc_alloc_sysfs_attr(vport);
9707 if (error) {
9708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9709 "1476 Failed to allocate sysfs attr\n");
9710 goto out_destroy_shost;
9711 }
9712
6669f9bb 9713 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 9714 /* Now, trying to enable interrupt and bring up the device */
9715 cfg_mode = phba->cfg_use_msi;
9716 while (true) {
9717 /* Put device to a known state before enabling interrupt */
9718 lpfc_stop_port(phba);
9719 /* Configure and enable interrupt */
9720 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9721 if (intr_mode == LPFC_INTR_ERROR) {
9722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9723 "0431 Failed to enable interrupt.\n");
9724 error = -ENODEV;
9725 goto out_free_sysfs_attr;
9726 }
9727 /* SLI-3 HBA setup */
9728 if (lpfc_sli_hba_setup(phba)) {
9729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9730 "1477 Failed to set up hba\n");
9731 error = -ENODEV;
9732 goto out_remove_device;
9733 }
9734
9735 /* Wait 50ms for the interrupts of previous mailbox commands */
9736 msleep(50);
9737 /* Check active interrupts on message signaled interrupts */
9738 if (intr_mode == 0 ||
9739 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9740 /* Log the current active interrupt mode */
9741 phba->intr_mode = intr_mode;
9742 lpfc_log_intr_mode(phba, intr_mode);
9743 break;
9744 } else {
9745 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9746 "0447 Configure interrupt mode (%d) "
9747 "failed active interrupt test.\n",
9748 intr_mode);
9749 /* Disable the current interrupt mode */
9750 lpfc_sli_disable_intr(phba);
9751 /* Try next level of interrupt mode */
9752 cfg_mode = --intr_mode;
9753 }
9754 }
9755
9756 /* Perform post initialization setup */
9757 lpfc_post_init_setup(phba);
9758
9759 /* Check if there are static vports to be created. */
9760 lpfc_create_static_vport(phba);
9761
9762 return 0;
9763
9764out_remove_device:
9765 lpfc_unset_hba(phba);
9766out_free_sysfs_attr:
9767 lpfc_free_sysfs_attr(vport);
9768out_destroy_shost:
9769 lpfc_destroy_shost(phba);
9770out_unset_driver_resource:
9771 lpfc_unset_driver_resource_phase2(phba);
9772out_free_iocb_list:
9773 lpfc_free_iocb_list(phba);
9774out_unset_driver_resource_s3:
9775 lpfc_sli_driver_resource_unset(phba);
9776out_unset_pci_mem_s3:
9777 lpfc_sli_pci_mem_unset(phba);
9778out_disable_pci_dev:
9779 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9780 if (shost)
9781 scsi_host_put(shost);
da0436e9
JS		 9782out_free_phba:
9783 lpfc_hba_free(phba);
9784 return error;
9785}
9786
9787/**
9788 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9789 * @pdev: pointer to PCI device
9790 *
9791 * This routine is to be called to disattach a device with SLI-3 interface
9792 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9793 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9794 * device to be removed from the PCI subsystem properly.
9795 **/
6f039790 9796static void
da0436e9
JS		 9797lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9798{
9799 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9800 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9801 struct lpfc_vport **vports;
9802 struct lpfc_hba *phba = vport->phba;
9803 int i;
da0436e9
JS		 9804
9805 spin_lock_irq(&phba->hbalock);
9806 vport->load_flag |= FC_UNLOADING;
9807 spin_unlock_irq(&phba->hbalock);
9808
9809 lpfc_free_sysfs_attr(vport);
9810
9811 /* Release all the vports against this physical port */
9812 vports = lpfc_create_vport_work_array(phba);
9813 if (vports != NULL)
587a37f6
JS		 9814 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9815 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9816 continue;
da0436e9 9817 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 9818 }
da0436e9
JS		 9819 lpfc_destroy_vport_work_array(phba, vports);
9820
9821 /* Remove FC host and then SCSI host with the physical port */
9822 fc_remove_host(shost);
9823 scsi_remove_host(shost);
9824 lpfc_cleanup(vport);
9825
9826 /*
9827 * Bring down the SLI Layer. This step disable all interrupts,
9828 * clears the rings, discards all mailbox commands, and resets
9829 * the HBA.
9830 */
9831
48e34d0f 9832 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 9833 lpfc_sli_hba_down(phba);
9834 /* Stop kthread signal shall trigger work_done one more time */
9835 kthread_stop(phba->worker_thread);
9836 /* Final cleanup of txcmplq and reset the HBA */
9837 lpfc_sli_brdrestart(phba);
9838
72859909
JS		 9839 kfree(phba->vpi_bmask);
9840 kfree(phba->vpi_ids);
9841
da0436e9
JS		 9842 lpfc_stop_hba_timers(phba);
9843 spin_lock_irq(&phba->hbalock);
9844 list_del_init(&vport->listentry);
9845 spin_unlock_irq(&phba->hbalock);
9846
9847 lpfc_debugfs_terminate(vport);
9848
912e3acd
JS		 9849 /* Disable SR-IOV if enabled */
9850 if (phba->cfg_sriov_nr_virtfn)
9851 pci_disable_sriov(pdev);
9852
da0436e9
JS		 9853 /* Disable interrupt */
9854 lpfc_sli_disable_intr(phba);
9855
da0436e9
JS		 9856 scsi_host_put(shost);
9857
9858 /*
9859 * Call scsi_free before mem_free since scsi bufs are released to their
9860 * corresponding pools here.
9861 */
9862 lpfc_scsi_free(phba);
9863 lpfc_mem_free_all(phba);
9864
9865 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9866 phba->hbqslimp.virt, phba->hbqslimp.phys);
9867
9868 /* Free resources associated with SLI2 interface */
9869 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9870 phba->slim2p.virt, phba->slim2p.phys);
9871
9872 /* unmap adapter SLIM and Control Registers */
9873 iounmap(phba->ctrl_regs_memmap_p);
9874 iounmap(phba->slim_memmap_p);
9875
9876 lpfc_hba_free(phba);
9877
e0c0483c 9878 pci_release_mem_regions(pdev);
da0436e9
JS		 9879 pci_disable_device(pdev);
9880}
9881
9882/**
9883 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9884 * @pdev: pointer to PCI device
9885 * @msg: power management message
9886 *
9887 * This routine is to be called from the kernel's PCI subsystem to support
9888 * system Power Management (PM) to device with SLI-3 interface spec. When
9889 * PM invokes this method, it quiesces the device by stopping the driver's
9890 * worker thread for the device, turning off device's interrupt and DMA,
9891 * and bring the device offline. Note that as the driver implements the
9892 * minimum PM requirements to a power-aware driver's PM support for the
9893 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9894 * to the suspend() method call will be treated as SUSPEND and the driver will
9895 * fully reinitialize its device during resume() method call, the driver will
9896 * set device to PCI_D3hot state in PCI config space instead of setting it
9897 * according to the @msg provided by the PM.
9898 *
9899 * Return code
9900 * 0 - driver suspended the device
9901 * Error otherwise
9902 **/
9903static int
9904lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9905{
9906 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9907 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9908
9909 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9910 "0473 PCI device Power Management suspend.\n");
9911
9912 /* Bring down the device */
618a5230 9913 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 9914 lpfc_offline(phba);
9915 kthread_stop(phba->worker_thread);
9916
9917 /* Disable interrupt from device */
9918 lpfc_sli_disable_intr(phba);
9919
9920 /* Save device state to PCI config space */
9921 pci_save_state(pdev);
9922 pci_set_power_state(pdev, PCI_D3hot);
9923
9924 return 0;
9925}
9926
9927/**
9928 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9929 * @pdev: pointer to PCI device
9930 *
9931 * This routine is to be called from the kernel's PCI subsystem to support
9932 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9933 * invokes this method, it restores the device's PCI config space state and
9934 * fully reinitializes the device and brings it online. Note that as the
9935 * driver implements the minimum PM requirements to a power-aware driver's
9936 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9937 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9938 * driver will fully reinitialize its device during resume() method call,
9939 * the device will be set to PCI_D0 directly in PCI config space before
9940 * restoring the state.
9941 *
9942 * Return code
9943 * 0 - driver suspended the device
9944 * Error otherwise
9945 **/
9946static int
9947lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9948{
9949 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9950 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9951 uint32_t intr_mode;
9952 int error;
9953
9954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9955 "0452 PCI device Power Management resume.\n");
9956
9957 /* Restore device state from PCI config space */
9958 pci_set_power_state(pdev, PCI_D0);
9959 pci_restore_state(pdev);
0d878419 9960
1dfb5a47
JS		 9961 /*
9962 * As the new kernel behavior of pci_restore_state() API call clears
9963 * device saved_state flag, need to save the restored state again.
9964 */
9965 pci_save_state(pdev);
9966
da0436e9
JS		 9967 if (pdev->is_busmaster)
9968 pci_set_master(pdev);
9969
9970 /* Startup the kernel thread for this host adapter. */
9971 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9972 "lpfc_worker_%d", phba->brd_no);
9973 if (IS_ERR(phba->worker_thread)) {
9974 error = PTR_ERR(phba->worker_thread);
9975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9976 "0434 PM resume failed to start worker "
9977 "thread: error=x%x.\n", error);
9978 return error;
9979 }
9980
9981 /* Configure and enable interrupt */
9982 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9983 if (intr_mode == LPFC_INTR_ERROR) {
9984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9985 "0430 PM resume Failed to enable interrupt\n");
9986 return -EIO;
9987 } else
9988 phba->intr_mode = intr_mode;
9989
9990 /* Restart HBA and bring it online */
9991 lpfc_sli_brdrestart(phba);
9992 lpfc_online(phba);
9993
9994 /* Log the current active interrupt mode */
9995 lpfc_log_intr_mode(phba, phba->intr_mode);
9996
9997 return 0;
9998}
9999
891478a2
JS		 10000/**
10001 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10002 * @phba: pointer to lpfc hba data structure.
10003 *
10004 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 10005 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 10006 **/
10007static void
10008lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10009{
10010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10011 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 10012
10013 /*
10014 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10015 * and let the SCSI mid-layer to retry them to recover.
10016 */
db55fba8 10017 lpfc_sli_abort_fcp_rings(phba);
891478a2
JS		 10018}
10019
0d878419
JS		 10020/**
10021 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10022 * @phba: pointer to lpfc hba data structure.
10023 *
10024 * This routine is called to prepare the SLI3 device for PCI slot reset. It
10025 * disables the device interrupt and pci device, and aborts the internal FCP
10026 * pending I/Os.
10027 **/
10028static void
10029lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10030{
0d878419 10031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 10032 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 10033
75baf696 10034 /* Block any management I/Os to the device */
618a5230 10035 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
75baf696 10036
e2af0d2e
JS		 10037 /* Block all SCSI devices' I/Os on the host */
10038 lpfc_scsi_dev_block(phba);
10039
ea714f3d
JS		 10040 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10041 lpfc_sli_flush_fcp_rings(phba);
10042
e2af0d2e
JS		 10043 /* stop all timers */
10044 lpfc_stop_hba_timers(phba);
10045
0d878419
JS		 10046 /* Disable interrupt and pci device */
10047 lpfc_sli_disable_intr(phba);
10048 pci_disable_device(phba->pcidev);
0d878419
JS		 10049}
10050
10051/**
10052 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10053 * @phba: pointer to lpfc hba data structure.
10054 *
10055 * This routine is called to prepare the SLI3 device for PCI slot permanently
10056 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10057 * pending I/Os.
10058 **/
10059static void
75baf696 10060lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 10061{
10062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 10063 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 10064 /* Block all SCSI devices' I/Os on the host */
10065 lpfc_scsi_dev_block(phba);
10066
10067 /* stop all timers */
10068 lpfc_stop_hba_timers(phba);
10069
0d878419
JS		 10070 /* Clean up all driver's outstanding SCSI I/Os */
10071 lpfc_sli_flush_fcp_rings(phba);
10072}
10073
da0436e9
JS		 10074/**
10075 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10076 * @pdev: pointer to PCI device.
10077 * @state: the current PCI connection state.
10078 *
10079 * This routine is called from the PCI subsystem for I/O error handling to
10080 * device with SLI-3 interface spec. This function is called by the PCI
10081 * subsystem after a PCI bus error affecting this device has been detected.
10082 * When this function is invoked, it will need to stop all the I/Os and
10083 * interrupt(s) to the device. Once that is done, it will return
10084 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10085 * as desired.
10086 *
10087 * Return codes
0d878419 10088 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 10089 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10090 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10091 **/
10092static pci_ers_result_t
10093lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10094{
10095 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10096 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 10097
0d878419
JS		 10098 switch (state) {
10099 case pci_channel_io_normal:
891478a2
JS		 10100 /* Non-fatal error, prepare for recovery */
10101 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 10102 return PCI_ERS_RESULT_CAN_RECOVER;
10103 case pci_channel_io_frozen:
10104 /* Fatal error, prepare for slot reset */
10105 lpfc_sli_prep_dev_for_reset(phba);
10106 return PCI_ERS_RESULT_NEED_RESET;
10107 case pci_channel_io_perm_failure:
10108 /* Permanent failure, prepare for device down */
75baf696 10109 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 10110 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 10111 default:
10112 /* Unknown state, prepare and request slot reset */
10113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10114 "0472 Unknown PCI error state: x%x\n", state);
10115 lpfc_sli_prep_dev_for_reset(phba);
10116 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 10117 }
da0436e9
JS		 10118}
10119
10120/**
10121 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10122 * @pdev: pointer to PCI device.
10123 *
10124 * This routine is called from the PCI subsystem for error handling to
10125 * device with SLI-3 interface spec. This is called after PCI bus has been
10126 * reset to restart the PCI card from scratch, as if from a cold-boot.
10127 * During the PCI subsystem error recovery, after driver returns
10128 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10129 * recovery and then call this routine before calling the .resume method
10130 * to recover the device. This function will initialize the HBA device,
10131 * enable the interrupt, but it will just put the HBA to offline state
10132 * without passing any I/O traffic.
10133 *
10134 * Return codes
10135 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10136 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10137 */
10138static pci_ers_result_t
10139lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10140{
10141 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10142 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10143 struct lpfc_sli *psli = &phba->sli;
10144 uint32_t intr_mode;
10145
10146 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10147 if (pci_enable_device_mem(pdev)) {
10148 printk(KERN_ERR "lpfc: Cannot re-enable "
10149 "PCI device after reset.\n");
10150 return PCI_ERS_RESULT_DISCONNECT;
10151 }
10152
10153 pci_restore_state(pdev);
1dfb5a47
JS		 10154
10155 /*
10156 * As the new kernel behavior of pci_restore_state() API call clears
10157 * device saved_state flag, need to save the restored state again.
10158 */
10159 pci_save_state(pdev);
10160
da0436e9
JS		 10161 if (pdev->is_busmaster)
10162 pci_set_master(pdev);
10163
10164 spin_lock_irq(&phba->hbalock);
10165 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10166 spin_unlock_irq(&phba->hbalock);
10167
10168 /* Configure and enable interrupt */
10169 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10170 if (intr_mode == LPFC_INTR_ERROR) {
10171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10172 "0427 Cannot re-enable interrupt after "
10173 "slot reset.\n");
10174 return PCI_ERS_RESULT_DISCONNECT;
10175 } else
10176 phba->intr_mode = intr_mode;
10177
75baf696 10178 /* Take device offline, it will perform cleanup */
618a5230 10179 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 10180 lpfc_offline(phba);
10181 lpfc_sli_brdrestart(phba);
10182
10183 /* Log the current active interrupt mode */
10184 lpfc_log_intr_mode(phba, phba->intr_mode);
10185
10186 return PCI_ERS_RESULT_RECOVERED;
10187}
10188
10189/**
10190 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10191 * @pdev: pointer to PCI device
10192 *
10193 * This routine is called from the PCI subsystem for error handling to device
10194 * with SLI-3 interface spec. It is called when kernel error recovery tells
10195 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10196 * error recovery. After this call, traffic can start to flow from this device
10197 * again.
10198 */
10199static void
10200lpfc_io_resume_s3(struct pci_dev *pdev)
10201{
10202 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10203 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 10204
e2af0d2e 10205 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 10206 lpfc_online(phba);
0d878419
JS		 10207
10208 /* Clean up Advanced Error Reporting (AER) if needed */
10209 if (phba->hba_flag & HBA_AER_ENABLED)
10210 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 10211}
3772a991 10212
da0436e9
JS		 10213/**
10214 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10215 * @phba: pointer to lpfc hba data structure.
10216 *
10217 * returns the number of ELS/CT IOCBs to reserve
10218 **/
10219int
10220lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10221{
10222 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10223
f1126688
JS		 10224 if (phba->sli_rev == LPFC_SLI_REV4) {
10225 if (max_xri <= 100)
6a9c52cf 10226 return 10;
f1126688 10227 else if (max_xri <= 256)
6a9c52cf 10228 return 25;
f1126688 10229 else if (max_xri <= 512)
6a9c52cf 10230 return 50;
f1126688 10231 else if (max_xri <= 1024)
6a9c52cf 10232 return 100;
8a9d2e80 10233 else if (max_xri <= 1536)
6a9c52cf 10234 return 150;
8a9d2e80
JS		 10235 else if (max_xri <= 2048)
10236 return 200;
10237 else
10238 return 250;
f1126688
JS		 10239 } else
10240 return 0;
3772a991
JS		 10241}
10242
52d52440
JS		 10243/**
10244 * lpfc_write_firmware - attempt to write a firmware image to the port
52d52440 10245 * @fw: pointer to firmware image returned from request_firmware.
ce396282 10246 * @phba: pointer to lpfc hba data structure.
52d52440 10247 *
52d52440 10248 **/
ce396282
JS		 10249static void
10250lpfc_write_firmware(const struct firmware *fw, void *context)
52d52440 10251{
ce396282 10252 struct lpfc_hba *phba = (struct lpfc_hba *)context;
6b5151fd 10253 char fwrev[FW_REV_STR_SIZE];
ce396282 10254 struct lpfc_grp_hdr *image;
52d52440
JS		 10255 struct list_head dma_buffer_list;
10256 int i, rc = 0;
10257 struct lpfc_dmabuf *dmabuf, *next;
10258 uint32_t offset = 0, temp_offset = 0;
10259
c71ab861 10260 /* It can be null in no-wait mode, sanity check */
ce396282
JS		 10261 if (!fw) {
10262 rc = -ENXIO;
10263 goto out;
10264 }
10265 image = (struct lpfc_grp_hdr *)fw->data;
10266
52d52440 10267 INIT_LIST_HEAD(&dma_buffer_list);
079b5c91
JS		 10268 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10269 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10270 LPFC_FILE_TYPE_GROUP) ||
10271 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10272 (be32_to_cpu(image->size) != fw->size)) {
52d52440
JS		 10273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10274 "3022 Invalid FW image found. "
079b5c91
JS		 10275 "Magic:%x Type:%x ID:%x\n",
10276 be32_to_cpu(image->magic_number),
10277 bf_get_be32(lpfc_grp_hdr_file_type, image),
10278 bf_get_be32(lpfc_grp_hdr_id, image));
ce396282
JS		 10279 rc = -EINVAL;
10280 goto release_out;
52d52440
JS		 10281 }
10282 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 10283 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440 10284 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
ce396282 10285 "3023 Updating Firmware, Current Version:%s "
52d52440 10286 "New Version:%s\n",
88a2cfbb 10287 fwrev, image->revision);
52d52440
JS		 10288 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10289 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10290 GFP_KERNEL);
10291 if (!dmabuf) {
10292 rc = -ENOMEM;
ce396282 10293 goto release_out;
52d52440
JS		 10294 }
10295 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10296 SLI4_PAGE_SIZE,
10297 &dmabuf->phys,
10298 GFP_KERNEL);
10299 if (!dmabuf->virt) {
10300 kfree(dmabuf);
10301 rc = -ENOMEM;
ce396282 10302 goto release_out;
52d52440
JS		 10303 }
10304 list_add_tail(&dmabuf->list, &dma_buffer_list);
10305 }
10306 while (offset < fw->size) {
10307 temp_offset = offset;
10308 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
079b5c91 10309 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
52d52440
JS		 10310 memcpy(dmabuf->virt,
10311 fw->data + temp_offset,
079b5c91
JS		 10312 fw->size - temp_offset);
10313 temp_offset = fw->size;
52d52440
JS		 10314 break;
10315 }
52d52440
JS		 10316 memcpy(dmabuf->virt, fw->data + temp_offset,
10317 SLI4_PAGE_SIZE);
88a2cfbb 10318 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 10319 }
10320 rc = lpfc_wr_object(phba, &dma_buffer_list,
10321 (fw->size - offset), &offset);
ce396282
JS		 10322 if (rc)
10323 goto release_out;
52d52440
JS		 10324 }
10325 rc = offset;
10326 }
ce396282
JS		 10327
10328release_out:
52d52440
JS		 10329 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10330 list_del(&dmabuf->list);
10331 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10332 dmabuf->virt, dmabuf->phys);
10333 kfree(dmabuf);
10334 }
ce396282
JS		 10335 release_firmware(fw);
10336out:
10337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
c71ab861 10338 "3024 Firmware update done: %d.\n", rc);
ce396282 10339 return;
52d52440
JS		 10340}
10341
c71ab861
JS		 10342/**
10343 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10344 * @phba: pointer to lpfc hba data structure.
10345 *
10346 * This routine is called to perform Linux generic firmware upgrade on device
10347 * that supports such feature.
10348 **/
10349int
10350lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10351{
10352 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10353 int ret;
10354 const struct firmware *fw;
10355
10356 /* Only supported on SLI4 interface type 2 for now */
10357 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10358 LPFC_SLI_INTF_IF_TYPE_2)
10359 return -EPERM;
10360
10361 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10362
10363 if (fw_upgrade == INT_FW_UPGRADE) {
10364 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10365 file_name, &phba->pcidev->dev,
10366 GFP_KERNEL, (void *)phba,
10367 lpfc_write_firmware);
10368 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10369 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10370 if (!ret)
10371 lpfc_write_firmware(fw, (void *)phba);
10372 } else {
10373 ret = -EINVAL;
10374 }
10375
10376 return ret;
10377}
10378
3772a991 10379/**
da0436e9 10380 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 10381 * @pdev: pointer to PCI device
10382 * @pid: pointer to PCI device identifier
10383 *
da0436e9
JS		 10384 * This routine is called from the kernel's PCI subsystem to device with
10385 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 10386 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 10387 * information of the device and driver to see if the driver state that it
10388 * can support this kind of device. If the match is successful, the driver
10389 * core invokes this routine. If this routine determines it can claim the HBA,
10390 * it does all the initialization that it needs to do to handle the HBA
10391 * properly.
3772a991
JS		 10392 *
10393 * Return code
10394 * 0 - driver can claim the device
10395 * negative value - driver can not claim the device
10396 **/
6f039790 10397static int
da0436e9 10398lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 10399{
10400 struct lpfc_hba *phba;
10401 struct lpfc_vport *vport = NULL;
6669f9bb 10402 struct Scsi_Host *shost = NULL;
db6f1c2f 10403 int error;
3772a991 10404 uint32_t cfg_mode, intr_mode;
67d12733 10405 int adjusted_fcp_io_channel;
3772a991
JS		 10406
10407 /* Allocate memory for HBA structure */
10408 phba = lpfc_hba_alloc(pdev);
10409 if (!phba)
10410 return -ENOMEM;
10411
10412 /* Perform generic PCI device enabling operation */
10413 error = lpfc_enable_pci_dev(phba);
079b5c91 10414 if (error)
3772a991 10415 goto out_free_phba;
3772a991 10416
da0436e9
JS		 10417 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10418 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 10419 if (error)
10420 goto out_disable_pci_dev;
10421
da0436e9
JS		 10422 /* Set up SLI-4 specific device PCI memory space */
10423 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 10424 if (error) {
10425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10426 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 10427 goto out_disable_pci_dev;
10428 }
10429
10430 /* Set up phase-1 common device driver resources */
10431 error = lpfc_setup_driver_resource_phase1(phba);
10432 if (error) {
10433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 10434 "1411 Failed to set up driver resource.\n");
10435 goto out_unset_pci_mem_s4;
3772a991
JS		 10436 }
10437
da0436e9
JS		 10438 /* Set up SLI-4 Specific device driver resources */
10439 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 10440 if (error) {
10441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 10442 "1412 Failed to set up driver resource.\n");
10443 goto out_unset_pci_mem_s4;
3772a991
JS		 10444 }
10445
10446 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 10447
10448 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10449 "2821 initialize iocb list %d.\n",
10450 phba->cfg_iocb_cnt*1024);
10451 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10452
3772a991
JS		 10453 if (error) {
10454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 10455 "1413 Failed to initialize iocb list.\n");
10456 goto out_unset_driver_resource_s4;
3772a991
JS		 10457 }
10458
19ca7609 10459 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 10460 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 10461
3772a991
JS		 10462 /* Set up common device driver resources */
10463 error = lpfc_setup_driver_resource_phase2(phba);
10464 if (error) {
10465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10466 "1414 Failed to set up driver resource.\n");
3772a991
JS		 10467 goto out_free_iocb_list;
10468 }
10469
079b5c91
JS		 10470 /* Get the default values for Model Name and Description */
10471 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10472
3772a991
JS		 10473 /* Create SCSI host to the physical port */
10474 error = lpfc_create_shost(phba);
10475 if (error) {
10476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10477 "1415 Failed to create scsi host.\n");
3772a991
JS		 10478 goto out_unset_driver_resource;
10479 }
9399627f 10480
5b75da2f 10481 /* Configure sysfs attributes */
3772a991
JS		 10482 vport = phba->pport;
10483 error = lpfc_alloc_sysfs_attr(vport);
10484 if (error) {
9399627f 10485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10486 "1416 Failed to allocate sysfs attr\n");
3772a991 10487 goto out_destroy_shost;
98c9ea5c 10488 }
875fbdfe 10489
6669f9bb 10490 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 10491 /* Now, trying to enable interrupt and bring up the device */
5b75da2f 10492 cfg_mode = phba->cfg_use_msi;
5b75da2f 10493
7b15db32
JS		 10494 /* Put device to a known state before enabling interrupt */
10495 lpfc_stop_port(phba);
10496 /* Configure and enable interrupt */
10497 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10498 if (intr_mode == LPFC_INTR_ERROR) {
10499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10500 "0426 Failed to enable interrupt.\n");
10501 error = -ENODEV;
10502 goto out_free_sysfs_attr;
10503 }
10504 /* Default to single EQ for non-MSI-X */
10505 if (phba->intr_type != MSIX)
10506 adjusted_fcp_io_channel = 1;
10507 else
10508 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10509 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10510 /* Set up SLI-4 HBA */
10511 if (lpfc_sli4_hba_setup(phba)) {
10512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10513 "1421 Failed to set up hba\n");
10514 error = -ENODEV;
10515 goto out_disable_intr;
98c9ea5c 10516 }
858c9f6c 10517
7b15db32
JS		 10518 /* Log the current active interrupt mode */
10519 phba->intr_mode = intr_mode;
10520 lpfc_log_intr_mode(phba, intr_mode);
10521
3772a991
JS		 10522 /* Perform post initialization setup */
10523 lpfc_post_init_setup(phba);
dea3101e 10524
c71ab861
JS		 10525 /* check for firmware upgrade or downgrade */
10526 if (phba->cfg_request_firmware_upgrade)
db6f1c2f 10527 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
52d52440 10528
1c6834a7
JS		 10529 /* Check if there are static vports to be created. */
10530 lpfc_create_static_vport(phba);
dea3101e 10531 return 0;
10532
da0436e9
JS		 10533out_disable_intr:
10534 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 10535out_free_sysfs_attr:
10536 lpfc_free_sysfs_attr(vport);
3772a991
JS		 10537out_destroy_shost:
10538 lpfc_destroy_shost(phba);
10539out_unset_driver_resource:
10540 lpfc_unset_driver_resource_phase2(phba);
10541out_free_iocb_list:
10542 lpfc_free_iocb_list(phba);
da0436e9
JS		 10543out_unset_driver_resource_s4:
10544 lpfc_sli4_driver_resource_unset(phba);
10545out_unset_pci_mem_s4:
10546 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 10547out_disable_pci_dev:
10548 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 10549 if (shost)
10550 scsi_host_put(shost);
2e0fef85 10551out_free_phba:
3772a991 10552 lpfc_hba_free(phba);
dea3101e 10553 return error;
10554}
10555
e59058c4 10556/**
da0436e9 10557 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 10558 * @pdev: pointer to PCI device
10559 *
da0436e9
JS		 10560 * This routine is called from the kernel's PCI subsystem to device with
10561 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 10562 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10563 * device to be removed from the PCI subsystem properly.
e59058c4 10564 **/
6f039790 10565static void
da0436e9 10566lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 10567{
da0436e9 10568 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 10569 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 10570 struct lpfc_vport **vports;
da0436e9 10571 struct lpfc_hba *phba = vport->phba;
eada272d 10572 int i;
8a4df120 10573
da0436e9 10574 /* Mark the device unloading flag */
549e55cd 10575 spin_lock_irq(&phba->hbalock);
51ef4c26 10576 vport->load_flag |= FC_UNLOADING;
549e55cd 10577 spin_unlock_irq(&phba->hbalock);
2e0fef85 10578
da0436e9 10579 /* Free the HBA sysfs attributes */
858c9f6c
JS		 10580 lpfc_free_sysfs_attr(vport);
10581
eada272d
JS		 10582 /* Release all the vports against this physical port */
10583 vports = lpfc_create_vport_work_array(phba);
10584 if (vports != NULL)
587a37f6
JS		 10585 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10586 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10587 continue;
eada272d 10588 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 10589 }
eada272d
JS		 10590 lpfc_destroy_vport_work_array(phba, vports);
10591
10592 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 10593 fc_remove_host(shost);
10594 scsi_remove_host(shost);
da0436e9
JS		 10595
10596 /* Perform cleanup on the physical port */
87af33fe
JS		 10597 lpfc_cleanup(vport);
10598
2e0fef85 10599 /*
da0436e9 10600 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 10601 * clears the rings, discards all mailbox commands, and resets
da0436e9 10602 * the HBA FCoE function.
2e0fef85 10603 */
da0436e9
JS		 10604 lpfc_debugfs_terminate(vport);
10605 lpfc_sli4_hba_unset(phba);
a257bf90 10606
858c9f6c
JS		 10607 spin_lock_irq(&phba->hbalock);
10608 list_del_init(&vport->listentry);
10609 spin_unlock_irq(&phba->hbalock);
10610
3677a3a7 10611 /* Perform scsi free before driver resource_unset since scsi
da0436e9 10612 * buffers are released to their corresponding pools here.
2e0fef85
JS		 10613 */
10614 lpfc_scsi_free(phba);
67d12733 10615
da0436e9 10616 lpfc_sli4_driver_resource_unset(phba);
ed957684 10617
da0436e9
JS		 10618 /* Unmap adapter Control and Doorbell registers */
10619 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 10620
da0436e9
JS		 10621 /* Release PCI resources and disable device's PCI function */
10622 scsi_host_put(shost);
10623 lpfc_disable_pci_dev(phba);
2e0fef85 10624
da0436e9 10625 /* Finally, free the driver's device data structure */
3772a991 10626 lpfc_hba_free(phba);
2e0fef85 10627
da0436e9 10628 return;
dea3101e 10629}
10630
3a55b532 10631/**
da0436e9 10632 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 10633 * @pdev: pointer to PCI device
10634 * @msg: power management message
10635 *
da0436e9
JS		 10636 * This routine is called from the kernel's PCI subsystem to support system
10637 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10638 * this method, it quiesces the device by stopping the driver's worker
10639 * thread for the device, turning off device's interrupt and DMA, and bring
10640 * the device offline. Note that as the driver implements the minimum PM
10641 * requirements to a power-aware driver's PM support for suspend/resume -- all
10642 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10643 * method call will be treated as SUSPEND and the driver will fully
10644 * reinitialize its device during resume() method call, the driver will set
10645 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 10646 * according to the @msg provided by the PM.
3a55b532
JS		 10647 *
10648 * Return code
3772a991
JS		 10649 * 0 - driver suspended the device
10650 * Error otherwise
3a55b532
JS		 10651 **/
10652static int
da0436e9 10653lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 10654{
10655 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10656 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10657
10658 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 10659 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 10660
10661 /* Bring down the device */
618a5230 10662 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3a55b532
JS		 10663 lpfc_offline(phba);
10664 kthread_stop(phba->worker_thread);
10665
10666 /* Disable interrupt from device */
da0436e9 10667 lpfc_sli4_disable_intr(phba);
5350d872 10668 lpfc_sli4_queue_destroy(phba);
3a55b532
JS		 10669
10670 /* Save device state to PCI config space */
10671 pci_save_state(pdev);
10672 pci_set_power_state(pdev, PCI_D3hot);
10673
10674 return 0;
10675}
10676
10677/**
da0436e9 10678 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 10679 * @pdev: pointer to PCI device
10680 *
da0436e9
JS		 10681 * This routine is called from the kernel's PCI subsystem to support system
10682 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10683 * this method, it restores the device's PCI config space state and fully
10684 * reinitializes the device and brings it online. Note that as the driver
10685 * implements the minimum PM requirements to a power-aware driver's PM for
10686 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10687 * to the suspend() method call will be treated as SUSPEND and the driver
10688 * will fully reinitialize its device during resume() method call, the device
10689 * will be set to PCI_D0 directly in PCI config space before restoring the
10690 * state.
3a55b532
JS		 10691 *
10692 * Return code
3772a991
JS		 10693 * 0 - driver suspended the device
10694 * Error otherwise
3a55b532
JS		 10695 **/
10696static int
da0436e9 10697lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 10698{
10699 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10700 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 10701 uint32_t intr_mode;
3a55b532
JS		 10702 int error;
10703
10704 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 10705 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 10706
10707 /* Restore device state from PCI config space */
10708 pci_set_power_state(pdev, PCI_D0);
10709 pci_restore_state(pdev);
1dfb5a47
JS		 10710
10711 /*
10712 * As the new kernel behavior of pci_restore_state() API call clears
10713 * device saved_state flag, need to save the restored state again.
10714 */
10715 pci_save_state(pdev);
10716
3a55b532
JS		 10717 if (pdev->is_busmaster)
10718 pci_set_master(pdev);
10719
da0436e9 10720 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 10721 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10722 "lpfc_worker_%d", phba->brd_no);
10723 if (IS_ERR(phba->worker_thread)) {
10724 error = PTR_ERR(phba->worker_thread);
10725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10726 "0293 PM resume failed to start worker "
3a55b532
JS		 10727 "thread: error=x%x.\n", error);
10728 return error;
10729 }
10730
5b75da2f 10731 /* Configure and enable interrupt */
da0436e9 10732 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 10733 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 10734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10735 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 10736 return -EIO;
10737 } else
10738 phba->intr_mode = intr_mode;
3a55b532
JS		 10739
10740 /* Restart HBA and bring it online */
10741 lpfc_sli_brdrestart(phba);
10742 lpfc_online(phba);
10743
5b75da2f
JS		 10744 /* Log the current active interrupt mode */
10745 lpfc_log_intr_mode(phba, phba->intr_mode);
10746
3a55b532
JS		 10747 return 0;
10748}
10749
75baf696
JS		 10750/**
10751 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10752 * @phba: pointer to lpfc hba data structure.
10753 *
10754 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10755 * aborts all the outstanding SCSI I/Os to the pci device.
10756 **/
10757static void
10758lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10759{
75baf696
JS		 10760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10761 "2828 PCI channel I/O abort preparing for recovery\n");
10762 /*
10763 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10764 * and let the SCSI mid-layer to retry them to recover.
10765 */
db55fba8 10766 lpfc_sli_abort_fcp_rings(phba);
75baf696
JS		 10767}
10768
10769/**
10770 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10771 * @phba: pointer to lpfc hba data structure.
10772 *
10773 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10774 * disables the device interrupt and pci device, and aborts the internal FCP
10775 * pending I/Os.
10776 **/
10777static void
10778lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10779{
10780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10781 "2826 PCI channel disable preparing for reset\n");
10782
10783 /* Block any management I/Os to the device */
618a5230 10784 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
75baf696
JS		 10785
10786 /* Block all SCSI devices' I/Os on the host */
10787 lpfc_scsi_dev_block(phba);
10788
ea714f3d
JS		 10789 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10790 lpfc_sli_flush_fcp_rings(phba);
10791
75baf696
JS		 10792 /* stop all timers */
10793 lpfc_stop_hba_timers(phba);
10794
10795 /* Disable interrupt and pci device */
10796 lpfc_sli4_disable_intr(phba);
5350d872 10797 lpfc_sli4_queue_destroy(phba);
75baf696 10798 pci_disable_device(phba->pcidev);
75baf696
JS		 10799}
10800
10801/**
10802 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10803 * @phba: pointer to lpfc hba data structure.
10804 *
10805 * This routine is called to prepare the SLI4 device for PCI slot permanently
10806 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10807 * pending I/Os.
10808 **/
10809static void
10810lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10811{
10812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10813 "2827 PCI channel permanent disable for failure\n");
10814
10815 /* Block all SCSI devices' I/Os on the host */
10816 lpfc_scsi_dev_block(phba);
10817
10818 /* stop all timers */
10819 lpfc_stop_hba_timers(phba);
10820
10821 /* Clean up all driver's outstanding SCSI I/Os */
10822 lpfc_sli_flush_fcp_rings(phba);
10823}
10824
8d63f375 10825/**
da0436e9 10826 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 10827 * @pdev: pointer to PCI device.
10828 * @state: the current PCI connection state.
8d63f375 10829 *
da0436e9
JS		 10830 * This routine is called from the PCI subsystem for error handling to device
10831 * with SLI-4 interface spec. This function is called by the PCI subsystem
10832 * after a PCI bus error affecting this device has been detected. When this
10833 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10834 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10835 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 10836 *
10837 * Return codes
3772a991
JS		 10838 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10839 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 10840 **/
3772a991 10841static pci_ers_result_t
da0436e9 10842lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 10843{
75baf696
JS		 10844 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10845 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10846
10847 switch (state) {
10848 case pci_channel_io_normal:
10849 /* Non-fatal error, prepare for recovery */
10850 lpfc_sli4_prep_dev_for_recover(phba);
10851 return PCI_ERS_RESULT_CAN_RECOVER;
10852 case pci_channel_io_frozen:
10853 /* Fatal error, prepare for slot reset */
10854 lpfc_sli4_prep_dev_for_reset(phba);
10855 return PCI_ERS_RESULT_NEED_RESET;
10856 case pci_channel_io_perm_failure:
10857 /* Permanent failure, prepare for device down */
10858 lpfc_sli4_prep_dev_for_perm_failure(phba);
10859 return PCI_ERS_RESULT_DISCONNECT;
10860 default:
10861 /* Unknown state, prepare and request slot reset */
10862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10863 "2825 Unknown PCI error state: x%x\n", state);
10864 lpfc_sli4_prep_dev_for_reset(phba);
10865 return PCI_ERS_RESULT_NEED_RESET;
10866 }
8d63f375
LV		 10867}
10868
10869/**
da0436e9 10870 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 10871 * @pdev: pointer to PCI device.
10872 *
da0436e9
JS		 10873 * This routine is called from the PCI subsystem for error handling to device
10874 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10875 * restart the PCI card from scratch, as if from a cold-boot. During the
10876 * PCI subsystem error recovery, after the driver returns
3772a991 10877 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 10878 * recovery and then call this routine before calling the .resume method to
10879 * recover the device. This function will initialize the HBA device, enable
10880 * the interrupt, but it will just put the HBA to offline state without
10881 * passing any I/O traffic.
8d63f375 10882 *
e59058c4 10883 * Return codes
3772a991
JS		 10884 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10885 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 10886 */
3772a991 10887static pci_ers_result_t
da0436e9 10888lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 10889{
75baf696
JS		 10890 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10891 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10892 struct lpfc_sli *psli = &phba->sli;
10893 uint32_t intr_mode;
10894
10895 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10896 if (pci_enable_device_mem(pdev)) {
10897 printk(KERN_ERR "lpfc: Cannot re-enable "
10898 "PCI device after reset.\n");
10899 return PCI_ERS_RESULT_DISCONNECT;
10900 }
10901
10902 pci_restore_state(pdev);
0a96e975
JS		 10903
10904 /*
10905 * As the new kernel behavior of pci_restore_state() API call clears
10906 * device saved_state flag, need to save the restored state again.
10907 */
10908 pci_save_state(pdev);
10909
75baf696
JS		 10910 if (pdev->is_busmaster)
10911 pci_set_master(pdev);
10912
10913 spin_lock_irq(&phba->hbalock);
10914 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10915 spin_unlock_irq(&phba->hbalock);
10916
10917 /* Configure and enable interrupt */
10918 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10919 if (intr_mode == LPFC_INTR_ERROR) {
10920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10921 "2824 Cannot re-enable interrupt after "
10922 "slot reset.\n");
10923 return PCI_ERS_RESULT_DISCONNECT;
10924 } else
10925 phba->intr_mode = intr_mode;
10926
10927 /* Log the current active interrupt mode */
10928 lpfc_log_intr_mode(phba, phba->intr_mode);
10929
8d63f375
LV		 10930 return PCI_ERS_RESULT_RECOVERED;
10931}
10932
10933/**
da0436e9 10934 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 10935 * @pdev: pointer to PCI device
8d63f375 10936 *
3772a991 10937 * This routine is called from the PCI subsystem for error handling to device
da0436e9 10938 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 10939 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10940 * error recovery. After this call, traffic can start to flow from this device
10941 * again.
da0436e9 10942 **/
3772a991 10943static void
da0436e9 10944lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 10945{
75baf696
JS		 10946 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10947 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10948
10949 /*
10950 * In case of slot reset, as function reset is performed through
10951 * mailbox command which needs DMA to be enabled, this operation
10952 * has to be moved to the io resume phase. Taking device offline
10953 * will perform the necessary cleanup.
10954 */
10955 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10956 /* Perform device reset */
618a5230 10957 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
75baf696
JS		 10958 lpfc_offline(phba);
10959 lpfc_sli_brdrestart(phba);
10960 /* Bring the device back online */
10961 lpfc_online(phba);
10962 }
10963
10964 /* Clean up Advanced Error Reporting (AER) if needed */
10965 if (phba->hba_flag & HBA_AER_ENABLED)
10966 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 10967}
10968
3772a991
JS		 10969/**
10970 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10971 * @pdev: pointer to PCI device
10972 * @pid: pointer to PCI device identifier
10973 *
10974 * This routine is to be registered to the kernel's PCI subsystem. When an
10975 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10976 * at PCI device-specific information of the device and driver to see if the
10977 * driver state that it can support this kind of device. If the match is
10978 * successful, the driver core invokes this routine. This routine dispatches
10979 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10980 * do all the initialization that it needs to do to handle the HBA device
10981 * properly.
10982 *
10983 * Return code
10984 * 0 - driver can claim the device
10985 * negative value - driver can not claim the device
10986 **/
6f039790 10987static int
3772a991
JS		 10988lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10989{
10990 int rc;
8fa38513 10991 struct lpfc_sli_intf intf;
3772a991 10992
28baac74 10993 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 10994 return -ENODEV;
10995
8fa38513 10996 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 10997 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 10998 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 10999 else
3772a991 11000 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 11001
3772a991
JS		 11002 return rc;
11003}
11004
11005/**
11006 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11007 * @pdev: pointer to PCI device
11008 *
11009 * This routine is to be registered to the kernel's PCI subsystem. When an
11010 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11011 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11012 * remove routine, which will perform all the necessary cleanup for the
11013 * device to be removed from the PCI subsystem properly.
11014 **/
6f039790 11015static void
3772a991
JS		 11016lpfc_pci_remove_one(struct pci_dev *pdev)
11017{
11018 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11019 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11020
11021 switch (phba->pci_dev_grp) {
11022 case LPFC_PCI_DEV_LP:
11023 lpfc_pci_remove_one_s3(pdev);
11024 break;
da0436e9
JS		 11025 case LPFC_PCI_DEV_OC:
11026 lpfc_pci_remove_one_s4(pdev);
11027 break;
3772a991
JS		 11028 default:
11029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11030 "1424 Invalid PCI device group: 0x%x\n",
11031 phba->pci_dev_grp);
11032 break;
11033 }
11034 return;
11035}
11036
11037/**
11038 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11039 * @pdev: pointer to PCI device
11040 * @msg: power management message
11041 *
11042 * This routine is to be registered to the kernel's PCI subsystem to support
11043 * system Power Management (PM). When PM invokes this method, it dispatches
11044 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11045 * suspend the device.
11046 *
11047 * Return code
11048 * 0 - driver suspended the device
11049 * Error otherwise
11050 **/
11051static int
11052lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11053{
11054 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11055 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11056 int rc = -ENODEV;
11057
11058 switch (phba->pci_dev_grp) {
11059 case LPFC_PCI_DEV_LP:
11060 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11061 break;
da0436e9
JS		 11062 case LPFC_PCI_DEV_OC:
11063 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11064 break;
3772a991
JS		 11065 default:
11066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11067 "1425 Invalid PCI device group: 0x%x\n",
11068 phba->pci_dev_grp);
11069 break;
11070 }
11071 return rc;
11072}
11073
11074/**
11075 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11076 * @pdev: pointer to PCI device
11077 *
11078 * This routine is to be registered to the kernel's PCI subsystem to support
11079 * system Power Management (PM). When PM invokes this method, it dispatches
11080 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11081 * resume the device.
11082 *
11083 * Return code
11084 * 0 - driver suspended the device
11085 * Error otherwise
11086 **/
11087static int
11088lpfc_pci_resume_one(struct pci_dev *pdev)
11089{
11090 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11091 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11092 int rc = -ENODEV;
11093
11094 switch (phba->pci_dev_grp) {
11095 case LPFC_PCI_DEV_LP:
11096 rc = lpfc_pci_resume_one_s3(pdev);
11097 break;
da0436e9
JS		 11098 case LPFC_PCI_DEV_OC:
11099 rc = lpfc_pci_resume_one_s4(pdev);
11100 break;
3772a991
JS		 11101 default:
11102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11103 "1426 Invalid PCI device group: 0x%x\n",
11104 phba->pci_dev_grp);
11105 break;
11106 }
11107 return rc;
11108}
11109
11110/**
11111 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11112 * @pdev: pointer to PCI device.
11113 * @state: the current PCI connection state.
11114 *
11115 * This routine is registered to the PCI subsystem for error handling. This
11116 * function is called by the PCI subsystem after a PCI bus error affecting
11117 * this device has been detected. When this routine is invoked, it dispatches
11118 * the action to the proper SLI-3 or SLI-4 device error detected handling
11119 * routine, which will perform the proper error detected operation.
11120 *
11121 * Return codes
11122 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11123 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11124 **/
11125static pci_ers_result_t
11126lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11127{
11128 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11129 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11130 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11131
11132 switch (phba->pci_dev_grp) {
11133 case LPFC_PCI_DEV_LP:
11134 rc = lpfc_io_error_detected_s3(pdev, state);
11135 break;
da0436e9
JS		 11136 case LPFC_PCI_DEV_OC:
11137 rc = lpfc_io_error_detected_s4(pdev, state);
11138 break;
3772a991
JS		 11139 default:
11140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11141 "1427 Invalid PCI device group: 0x%x\n",
11142 phba->pci_dev_grp);
11143 break;
11144 }
11145 return rc;
11146}
11147
11148/**
11149 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11150 * @pdev: pointer to PCI device.
11151 *
11152 * This routine is registered to the PCI subsystem for error handling. This
11153 * function is called after PCI bus has been reset to restart the PCI card
11154 * from scratch, as if from a cold-boot. When this routine is invoked, it
11155 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11156 * routine, which will perform the proper device reset.
11157 *
11158 * Return codes
11159 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11160 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11161 **/
11162static pci_ers_result_t
11163lpfc_io_slot_reset(struct pci_dev *pdev)
11164{
11165 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11166 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11167 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11168
11169 switch (phba->pci_dev_grp) {
11170 case LPFC_PCI_DEV_LP:
11171 rc = lpfc_io_slot_reset_s3(pdev);
11172 break;
da0436e9
JS		 11173 case LPFC_PCI_DEV_OC:
11174 rc = lpfc_io_slot_reset_s4(pdev);
11175 break;
3772a991
JS		 11176 default:
11177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11178 "1428 Invalid PCI device group: 0x%x\n",
11179 phba->pci_dev_grp);
11180 break;
11181 }
11182 return rc;
11183}
11184
11185/**
11186 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11187 * @pdev: pointer to PCI device
11188 *
11189 * This routine is registered to the PCI subsystem for error handling. It
11190 * is called when kernel error recovery tells the lpfc driver that it is
11191 * OK to resume normal PCI operation after PCI bus error recovery. When
11192 * this routine is invoked, it dispatches the action to the proper SLI-3
11193 * or SLI-4 device io_resume routine, which will resume the device operation.
11194 **/
11195static void
11196lpfc_io_resume(struct pci_dev *pdev)
11197{
11198 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11199 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11200
11201 switch (phba->pci_dev_grp) {
11202 case LPFC_PCI_DEV_LP:
11203 lpfc_io_resume_s3(pdev);
11204 break;
da0436e9
JS		 11205 case LPFC_PCI_DEV_OC:
11206 lpfc_io_resume_s4(pdev);
11207 break;
3772a991
JS		 11208 default:
11209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11210 "1429 Invalid PCI device group: 0x%x\n",
11211 phba->pci_dev_grp);
11212 break;
11213 }
11214 return;
11215}
11216
1ba981fd
JS		 11217/**
11218 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11219 * @phba: pointer to lpfc hba data structure.
11220 *
11221 * This routine checks to see if OAS is supported for this adapter. If
11222 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11223 * the enable oas flag is cleared and the pool created for OAS device data
11224 * is destroyed.
11225 *
11226 **/
11227void
11228lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11229{
11230
11231 if (!phba->cfg_EnableXLane)
11232 return;
11233
11234 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11235 phba->cfg_fof = 1;
11236 } else {
f38fa0bb 11237 phba->cfg_fof = 0;
1ba981fd
JS		 11238 if (phba->device_data_mem_pool)
11239 mempool_destroy(phba->device_data_mem_pool);
11240 phba->device_data_mem_pool = NULL;
11241 }
11242
11243 return;
11244}
11245
11246/**
11247 * lpfc_fof_queue_setup - Set up all the fof queues
11248 * @phba: pointer to lpfc hba data structure.
11249 *
11250 * This routine is invoked to set up all the fof queues for the FC HBA
11251 * operation.
11252 *
11253 * Return codes
11254 * 0 - successful
11255 * -ENOMEM - No available memory
11256 **/
11257int
11258lpfc_fof_queue_setup(struct lpfc_hba *phba)
11259{
11260 struct lpfc_sli *psli = &phba->sli;
11261 int rc;
11262
11263 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11264 if (rc)
11265 return -ENOMEM;
11266
f38fa0bb 11267 if (phba->cfg_fof) {
1ba981fd
JS		 11268
11269 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11270 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11271 if (rc)
11272 goto out_oas_cq;
11273
11274 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11275 phba->sli4_hba.oas_cq, LPFC_FCP);
11276 if (rc)
11277 goto out_oas_wq;
11278
11279 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11280 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11281 }
11282
11283 return 0;
11284
11285out_oas_wq:
f38fa0bb 11286 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
1ba981fd
JS		 11287out_oas_cq:
11288 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11289 return rc;
11290
11291}
11292
11293/**
11294 * lpfc_fof_queue_create - Create all the fof queues
11295 * @phba: pointer to lpfc hba data structure.
11296 *
11297 * This routine is invoked to allocate all the fof queues for the FC HBA
11298 * operation. For each SLI4 queue type, the parameters such as queue entry
11299 * count (queue depth) shall be taken from the module parameter. For now,
11300 * we just use some constant number as place holder.
11301 *
11302 * Return codes
11303 * 0 - successful
11304 * -ENOMEM - No availble memory
11305 * -EIO - The mailbox failed to complete successfully.
11306 **/
11307int
11308lpfc_fof_queue_create(struct lpfc_hba *phba)
11309{
11310 struct lpfc_queue *qdesc;
11311
11312 /* Create FOF EQ */
11313 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11314 phba->sli4_hba.eq_ecount);
11315 if (!qdesc)
11316 goto out_error;
11317
11318 phba->sli4_hba.fof_eq = qdesc;
11319
f38fa0bb 11320 if (phba->cfg_fof) {
1ba981fd
JS		 11321
11322 /* Create OAS CQ */
11323 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11324 phba->sli4_hba.cq_ecount);
11325 if (!qdesc)
11326 goto out_error;
11327
11328 phba->sli4_hba.oas_cq = qdesc;
11329
11330 /* Create OAS WQ */
11331 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11332 phba->sli4_hba.wq_ecount);
11333 if (!qdesc)
11334 goto out_error;
11335
11336 phba->sli4_hba.oas_wq = qdesc;
11337
11338 }
11339 return 0;
11340
11341out_error:
11342 lpfc_fof_queue_destroy(phba);
11343 return -ENOMEM;
11344}
11345
11346/**
11347 * lpfc_fof_queue_destroy - Destroy all the fof queues
11348 * @phba: pointer to lpfc hba data structure.
11349 *
11350 * This routine is invoked to release all the SLI4 queues with the FC HBA
11351 * operation.
11352 *
11353 * Return codes
11354 * 0 - successful
11355 **/
11356int
11357lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11358{
11359 /* Release FOF Event queue */
11360 if (phba->sli4_hba.fof_eq != NULL) {
11361 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11362 phba->sli4_hba.fof_eq = NULL;
11363 }
11364
11365 /* Release OAS Completion queue */
11366 if (phba->sli4_hba.oas_cq != NULL) {
11367 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11368 phba->sli4_hba.oas_cq = NULL;
11369 }
11370
11371 /* Release OAS Work queue */
11372 if (phba->sli4_hba.oas_wq != NULL) {
11373 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11374 phba->sli4_hba.oas_wq = NULL;
11375 }
11376 return 0;
11377}
11378
dea3101e 11379MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11380
a55b2d21 11381static const struct pci_error_handlers lpfc_err_handler = {
8d63f375
LV		 11382 .error_detected = lpfc_io_error_detected,
11383 .slot_reset = lpfc_io_slot_reset,
11384 .resume = lpfc_io_resume,
11385};
11386
dea3101e 11387static struct pci_driver lpfc_driver = {
11388 .name = LPFC_DRIVER_NAME,
11389 .id_table = lpfc_id_table,
11390 .probe = lpfc_pci_probe_one,
6f039790 11391 .remove = lpfc_pci_remove_one,
3a55b532 11392 .suspend = lpfc_pci_suspend_one,
3772a991 11393 .resume = lpfc_pci_resume_one,
2e0fef85 11394 .err_handler = &lpfc_err_handler,
dea3101e 11395};
11396
3ef6d24c 11397static const struct file_operations lpfc_mgmt_fop = {
858feacd 11398 .owner = THIS_MODULE,
3ef6d24c
JS		 11399};
11400
11401static struct miscdevice lpfc_mgmt_dev = {
11402 .minor = MISC_DYNAMIC_MINOR,
11403 .name = "lpfcmgmt",
11404 .fops = &lpfc_mgmt_fop,
11405};
11406
e59058c4 11407/**
3621a710 11408 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 11409 *
11410 * This routine is to be invoked when the lpfc module is loaded into the
11411 * kernel. The special kernel macro module_init() is used to indicate the
11412 * role of this routine to the kernel as lpfc module entry point.
11413 *
11414 * Return codes
11415 * 0 - successful
11416 * -ENOMEM - FC attach transport failed
11417 * all others - failed
11418 */
dea3101e 11419static int __init
11420lpfc_init(void)
11421{
7bb03bbf 11422 int cpu;
dea3101e 11423 int error = 0;
11424
11425 printk(LPFC_MODULE_DESC "\n");
c44ce173 11426 printk(LPFC_COPYRIGHT "\n");
dea3101e 11427
3ef6d24c
JS		 11428 error = misc_register(&lpfc_mgmt_dev);
11429 if (error)
11430 printk(KERN_ERR "Could not register lpfcmgmt device, "
11431 "misc_register returned with status %d", error);
11432
458c083e
JS		 11433 lpfc_transport_functions.vport_create = lpfc_vport_create;
11434 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
dea3101e 11435 lpfc_transport_template =
11436 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 11437 if (lpfc_transport_template == NULL)
dea3101e 11438 return -ENOMEM;
458c083e
JS		 11439 lpfc_vport_transport_template =
11440 fc_attach_transport(&lpfc_vport_transport_functions);
11441 if (lpfc_vport_transport_template == NULL) {
11442 fc_release_transport(lpfc_transport_template);
11443 return -ENOMEM;
7ee5d43e 11444 }
7bb03bbf
JS		 11445
11446 /* Initialize in case vector mapping is needed */
b246de17
JS		 11447 lpfc_used_cpu = NULL;
11448 lpfc_present_cpu = 0;
11449 for_each_present_cpu(cpu)
11450 lpfc_present_cpu++;
7bb03bbf 11451
dea3101e 11452 error = pci_register_driver(&lpfc_driver);
92d7f7b0 11453 if (error) {
dea3101e 11454 fc_release_transport(lpfc_transport_template);
458c083e 11455 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 11456 }
dea3101e 11457
11458 return error;
11459}
11460
e59058c4 11461/**
3621a710 11462 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 11463 *
11464 * This routine is invoked when the lpfc module is removed from the kernel.
11465 * The special kernel macro module_exit() is used to indicate the role of
11466 * this routine to the kernel as lpfc module exit point.
11467 */
dea3101e 11468static void __exit
11469lpfc_exit(void)
11470{
3ef6d24c 11471 misc_deregister(&lpfc_mgmt_dev);
dea3101e 11472 pci_unregister_driver(&lpfc_driver);
11473 fc_release_transport(lpfc_transport_template);
458c083e 11474 fc_release_transport(lpfc_vport_transport_template);
81301a9b 11475 if (_dump_buf_data) {
6a9c52cf
JS		 11476 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11477 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 11478 (1L << _dump_buf_data_order), _dump_buf_data);
11479 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11480 }
11481
11482 if (_dump_buf_dif) {
6a9c52cf
JS		 11483 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11484 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 11485 (1L << _dump_buf_dif_order), _dump_buf_dif);
11486 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11487 }
b246de17 11488 kfree(lpfc_used_cpu);
7973967f 11489 idr_destroy(&lpfc_hba_index);
dea3101e 11490}
11491
11492module_init(lpfc_init);
11493module_exit(lpfc_exit);
11494MODULE_LICENSE("GPL");
11495MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11496MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11497MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux 6.x block layer and io_uring tree(s)