projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[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. *
92c13f29 4 * Copyright (C) 2004-2013 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"
55
81301a9b
JS		 56char *_dump_buf_data;
57unsigned long _dump_buf_data_order;
58char *_dump_buf_dif;
59unsigned long _dump_buf_dif_order;
60spinlock_t _dump_buf_lock;
61
7bb03bbf 62/* Used when mapping IRQ vectors in a driver centric manner */
b246de17
JS		 63uint16_t *lpfc_used_cpu;
64uint32_t lpfc_present_cpu;
7bb03bbf 65
dea3101e 66static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
67static int lpfc_post_rcv_buf(struct lpfc_hba *);
5350d872 68static int lpfc_sli4_queue_verify(struct lpfc_hba *);
da0436e9
JS		 69static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
70static int lpfc_setup_endian_order(struct lpfc_hba *);
da0436e9 71static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
8a9d2e80
JS		 72static void lpfc_free_els_sgl_list(struct lpfc_hba *);
73static void lpfc_init_sgl_list(struct lpfc_hba *);
da0436e9
JS		 74static int lpfc_init_active_sgl_array(struct lpfc_hba *);
75static void lpfc_free_active_sgl(struct lpfc_hba *);
76static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
77static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
78static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
79static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
80static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
618a5230
JS		 81static void lpfc_sli4_disable_intr(struct lpfc_hba *);
82static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
1ba981fd 83static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
dea3101e 84
85static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 86static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 87static DEFINE_IDR(lpfc_hba_index);
88
e59058c4 89/**
3621a710 90 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 91 * @phba: pointer to lpfc hba data structure.
92 *
93 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
94 * mailbox command. It retrieves the revision information from the HBA and
95 * collects the Vital Product Data (VPD) about the HBA for preparing the
96 * configuration of the HBA.
97 *
98 * Return codes:
99 * 0 - success.
100 * -ERESTART - requests the SLI layer to reset the HBA and try again.
101 * Any other value - indicates an error.
102 **/
dea3101e 103int
2e0fef85 104lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 105{
106 lpfc_vpd_t *vp = &phba->vpd;
107 int i = 0, rc;
108 LPFC_MBOXQ_t *pmb;
109 MAILBOX_t *mb;
110 char *lpfc_vpd_data = NULL;
111 uint16_t offset = 0;
112 static char licensed[56] =
113 "key unlock for use with gnu public licensed code only\0";
65a29c16 114 static int init_key = 1;
dea3101e 115
116 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
117 if (!pmb) {
2e0fef85 118 phba->link_state = LPFC_HBA_ERROR;
dea3101e 119 return -ENOMEM;
120 }
121
04c68496 122 mb = &pmb->u.mb;
2e0fef85 123 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 124
125 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 126 if (init_key) {
127 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 128
65a29c16
JS		 129 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
130 *ptext = cpu_to_be32(*ptext);
131 init_key = 0;
132 }
dea3101e 133
134 lpfc_read_nv(phba, pmb);
135 memset((char*)mb->un.varRDnvp.rsvd3, 0,
136 sizeof (mb->un.varRDnvp.rsvd3));
137 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
138 sizeof (licensed));
139
140 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
141
142 if (rc != MBX_SUCCESS) {
ed957684 143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 144 "0324 Config Port initialization "
dea3101e 145 "error, mbxCmd x%x READ_NVPARM, "
146 "mbxStatus x%x\n",
dea3101e 147 mb->mbxCommand, mb->mbxStatus);
148 mempool_free(pmb, phba->mbox_mem_pool);
149 return -ERESTART;
150 }
151 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 152 sizeof(phba->wwnn));
153 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
154 sizeof(phba->wwpn));
dea3101e 155 }
156
92d7f7b0
JS		 157 phba->sli3_options = 0x0;
158
dea3101e 159 /* Setup and issue mailbox READ REV command */
160 lpfc_read_rev(phba, pmb);
161 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
162 if (rc != MBX_SUCCESS) {
ed957684 163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 164 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 165 "READ_REV, mbxStatus x%x\n",
dea3101e 166 mb->mbxCommand, mb->mbxStatus);
167 mempool_free( pmb, phba->mbox_mem_pool);
168 return -ERESTART;
169 }
170
92d7f7b0 171
1de933f3
JSEC		 172 /*
173 * The value of rr must be 1 since the driver set the cv field to 1.
174 * This setting requires the FW to set all revision fields.
dea3101e 175 */
1de933f3 176 if (mb->un.varRdRev.rr == 0) {
dea3101e 177 vp->rev.rBit = 0;
1de933f3 178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 179 "0440 Adapter failed to init, READ_REV has "
180 "missing revision information.\n");
dea3101e 181 mempool_free(pmb, phba->mbox_mem_pool);
182 return -ERESTART;
dea3101e 183 }
184
495a714c
JS		 185 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
186 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 187 return -EINVAL;
495a714c 188 }
ed957684 189
dea3101e 190 /* Save information as VPD data */
1de933f3 191 vp->rev.rBit = 1;
92d7f7b0 192 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 193 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
194 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
195 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
196 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 197 vp->rev.biuRev = mb->un.varRdRev.biuRev;
198 vp->rev.smRev = mb->un.varRdRev.smRev;
199 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
200 vp->rev.endecRev = mb->un.varRdRev.endecRev;
201 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
202 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
203 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
204 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
205 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
206 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
207
92d7f7b0
JS		 208 /* If the sli feature level is less then 9, we must
209 * tear down all RPIs and VPIs on link down if NPIV
210 * is enabled.
211 */
212 if (vp->rev.feaLevelHigh < 9)
213 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
214
dea3101e 215 if (lpfc_is_LC_HBA(phba->pcidev->device))
216 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
217 sizeof (phba->RandomData));
218
dea3101e 219 /* Get adapter VPD information */
dea3101e 220 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
221 if (!lpfc_vpd_data)
d7c255b2 222 goto out_free_mbox;
dea3101e 223 do {
a0c87cbd 224 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 225 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
226
227 if (rc != MBX_SUCCESS) {
228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 229 "0441 VPD not present on adapter, "
dea3101e 230 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 231 mb->mbxCommand, mb->mbxStatus);
74b72a59 232 mb->un.varDmp.word_cnt = 0;
dea3101e 233 }
04c68496
JS		 234 /* dump mem may return a zero when finished or we got a
235 * mailbox error, either way we are done.
236 */
237 if (mb->un.varDmp.word_cnt == 0)
238 break;
74b72a59
JW		 239 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
240 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 241 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
242 lpfc_vpd_data + offset,
92d7f7b0 243 mb->un.varDmp.word_cnt);
dea3101e 244 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 245 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
246 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 247
248 kfree(lpfc_vpd_data);
dea3101e 249out_free_mbox:
250 mempool_free(pmb, phba->mbox_mem_pool);
251 return 0;
252}
253
e59058c4 254/**
3621a710 255 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 256 * @phba: pointer to lpfc hba data structure.
257 * @pmboxq: pointer to the driver internal queue element for mailbox command.
258 *
259 * This is the completion handler for driver's configuring asynchronous event
260 * mailbox command to the device. If the mailbox command returns successfully,
261 * it will set internal async event support flag to 1; otherwise, it will
262 * set internal async event support flag to 0.
263 **/
57127f15
JS		 264static void
265lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
266{
04c68496 267 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 268 phba->temp_sensor_support = 1;
269 else
270 phba->temp_sensor_support = 0;
271 mempool_free(pmboxq, phba->mbox_mem_pool);
272 return;
273}
274
97207482 275/**
3621a710 276 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 277 * @phba: pointer to lpfc hba data structure.
278 * @pmboxq: pointer to the driver internal queue element for mailbox command.
279 *
280 * This is the completion handler for dump mailbox command for getting
281 * wake up parameters. When this command complete, the response contain
282 * Option rom version of the HBA. This function translate the version number
283 * into a human readable string and store it in OptionROMVersion.
284 **/
285static void
286lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
287{
288 struct prog_id *prg;
289 uint32_t prog_id_word;
290 char dist = ' ';
291 /* character array used for decoding dist type. */
292 char dist_char[] = "nabx";
293
04c68496 294 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 295 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 296 return;
9f1e1b50 297 }
97207482
JS		 298
299 prg = (struct prog_id *) &prog_id_word;
300
301 /* word 7 contain option rom version */
04c68496 302 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 303
304 /* Decode the Option rom version word to a readable string */
305 if (prg->dist < 4)
306 dist = dist_char[prg->dist];
307
308 if ((prg->dist == 3) && (prg->num == 0))
309 sprintf(phba->OptionROMVersion, "%d.%d%d",
310 prg->ver, prg->rev, prg->lev);
311 else
312 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
313 prg->ver, prg->rev, prg->lev,
314 dist, prg->num);
9f1e1b50 315 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 316 return;
317}
318
0558056c
JS		 319/**
320 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
321 * cfg_soft_wwnn, cfg_soft_wwpn
322 * @vport: pointer to lpfc vport data structure.
323 *
324 *
325 * Return codes
326 * None.
327 **/
328void
329lpfc_update_vport_wwn(struct lpfc_vport *vport)
330{
331 /* If the soft name exists then update it using the service params */
332 if (vport->phba->cfg_soft_wwnn)
333 u64_to_wwn(vport->phba->cfg_soft_wwnn,
334 vport->fc_sparam.nodeName.u.wwn);
335 if (vport->phba->cfg_soft_wwpn)
336 u64_to_wwn(vport->phba->cfg_soft_wwpn,
337 vport->fc_sparam.portName.u.wwn);
338
339 /*
340 * If the name is empty or there exists a soft name
341 * then copy the service params name, otherwise use the fc name
342 */
343 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
344 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
345 sizeof(struct lpfc_name));
346 else
347 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
348 sizeof(struct lpfc_name));
349
350 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
351 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
352 sizeof(struct lpfc_name));
353 else
354 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
355 sizeof(struct lpfc_name));
356}
357
e59058c4 358/**
3621a710 359 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 360 * @phba: pointer to lpfc hba data structure.
361 *
362 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
363 * command call. It performs all internal resource and state setups on the
364 * port: post IOCB buffers, enable appropriate host interrupt attentions,
365 * ELS ring timers, etc.
366 *
367 * Return codes
368 * 0 - success.
369 * Any other value - error.
370 **/
dea3101e 371int
2e0fef85 372lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 373{
2e0fef85 374 struct lpfc_vport *vport = phba->pport;
a257bf90 375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 376 LPFC_MBOXQ_t *pmb;
377 MAILBOX_t *mb;
378 struct lpfc_dmabuf *mp;
379 struct lpfc_sli *psli = &phba->sli;
380 uint32_t status, timeout;
2e0fef85
JS		 381 int i, j;
382 int rc;
dea3101e 383
7af67051
JS		 384 spin_lock_irq(&phba->hbalock);
385 /*
386 * If the Config port completed correctly the HBA is not
387 * over heated any more.
388 */
389 if (phba->over_temp_state == HBA_OVER_TEMP)
390 phba->over_temp_state = HBA_NORMAL_TEMP;
391 spin_unlock_irq(&phba->hbalock);
392
dea3101e 393 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
394 if (!pmb) {
2e0fef85 395 phba->link_state = LPFC_HBA_ERROR;
dea3101e 396 return -ENOMEM;
397 }
04c68496 398 mb = &pmb->u.mb;
dea3101e 399
dea3101e 400 /* Get login parameters for NID. */
9f1177a3
JS		 401 rc = lpfc_read_sparam(phba, pmb, 0);
402 if (rc) {
403 mempool_free(pmb, phba->mbox_mem_pool);
404 return -ENOMEM;
405 }
406
ed957684 407 pmb->vport = vport;
dea3101e 408 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 410 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 411 "READ_SPARM mbxStatus x%x\n",
dea3101e 412 mb->mbxCommand, mb->mbxStatus);
2e0fef85 413 phba->link_state = LPFC_HBA_ERROR;
dea3101e 414 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 415 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
417 kfree(mp);
418 return -EIO;
419 }
420
421 mp = (struct lpfc_dmabuf *) pmb->context1;
422
2e0fef85 423 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 424 lpfc_mbuf_free(phba, mp->virt, mp->phys);
425 kfree(mp);
426 pmb->context1 = NULL;
0558056c 427 lpfc_update_vport_wwn(vport);
a257bf90
JS		 428
429 /* Update the fc_host data structures with new wwn. */
430 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
431 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 432 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 433
dea3101e 434 /* If no serial number in VPD data, use low 6 bytes of WWNN */
435 /* This should be consolidated into parse_vpd ? - mr */
436 if (phba->SerialNumber[0] == 0) {
437 uint8_t *outptr;
438
2e0fef85 439 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 440 for (i = 0; i < 12; i++) {
441 status = *outptr++;
442 j = ((status & 0xf0) >> 4);
443 if (j <= 9)
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
446 else
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
449 i++;
450 j = (status & 0xf);
451 if (j <= 9)
452 phba->SerialNumber[i] =
453 (char)((uint8_t) 0x30 + (uint8_t) j);
454 else
455 phba->SerialNumber[i] =
456 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
457 }
458 }
459
dea3101e 460 lpfc_read_config(phba, pmb);
ed957684 461 pmb->vport = vport;
dea3101e 462 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 464 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 465 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 466 mb->mbxCommand, mb->mbxStatus);
2e0fef85 467 phba->link_state = LPFC_HBA_ERROR;
dea3101e 468 mempool_free( pmb, phba->mbox_mem_pool);
469 return -EIO;
470 }
471
a0c87cbd
JS		 472 /* Check if the port is disabled */
473 lpfc_sli_read_link_ste(phba);
474
dea3101e 475 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
572709e2
JS		 476 i = (mb->un.varRdConfig.max_xri + 1);
477 if (phba->cfg_hba_queue_depth > i) {
478 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
479 "3359 HBA queue depth changed from %d to %d\n",
480 phba->cfg_hba_queue_depth, i);
481 phba->cfg_hba_queue_depth = i;
482 }
483
484 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
485 i = (mb->un.varRdConfig.max_xri >> 3);
486 if (phba->pport->cfg_lun_queue_depth > i) {
487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
488 "3360 LUN queue depth changed from %d to %d\n",
489 phba->pport->cfg_lun_queue_depth, i);
490 phba->pport->cfg_lun_queue_depth = i;
491 }
dea3101e 492
493 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 494
495 /* Get the default values for Model Name and Description */
496 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
497
2e0fef85 498 phba->link_state = LPFC_LINK_DOWN;
dea3101e 499
0b727fea 500 /* Only process IOCBs on ELS ring till hba_state is READY */
7e56aa25 501 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
a4bc3379 502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 503 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
dea3101e 504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 505 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
dea3101e 506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
507
508 /* Post receive buffers for desired rings */
ed957684
JS		 509 if (phba->sli_rev != 3)
510 lpfc_post_rcv_buf(phba);
dea3101e 511
9399627f
JS		 512 /*
513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
514 */
515 if (phba->intr_type == MSIX) {
516 rc = lpfc_config_msi(phba, pmb);
517 if (rc) {
518 mempool_free(pmb, phba->mbox_mem_pool);
519 return -EIO;
520 }
521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
522 if (rc != MBX_SUCCESS) {
523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
524 "0352 Config MSI mailbox command "
525 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 526 pmb->u.mb.mbxCommand,
527 pmb->u.mb.mbxStatus);
9399627f
JS		 528 mempool_free(pmb, phba->mbox_mem_pool);
529 return -EIO;
530 }
531 }
532
04c68496 533 spin_lock_irq(&phba->hbalock);
9399627f
JS		 534 /* Initialize ERATT handling flag */
535 phba->hba_flag &= ~HBA_ERATT_HANDLED;
536
dea3101e 537 /* Enable appropriate host interrupts */
9940b97b
JS		 538 if (lpfc_readl(phba->HCregaddr, &status)) {
539 spin_unlock_irq(&phba->hbalock);
540 return -EIO;
541 }
dea3101e 542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
543 if (psli->num_rings > 0)
544 status |= HC_R0INT_ENA;
545 if (psli->num_rings > 1)
546 status |= HC_R1INT_ENA;
547 if (psli->num_rings > 2)
548 status |= HC_R2INT_ENA;
549 if (psli->num_rings > 3)
550 status |= HC_R3INT_ENA;
551
875fbdfe
JSEC		 552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
553 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 554 status &= ~(HC_R0INT_ENA);
875fbdfe 555
dea3101e 556 writel(status, phba->HCregaddr);
557 readl(phba->HCregaddr); /* flush */
2e0fef85 558 spin_unlock_irq(&phba->hbalock);
dea3101e 559
9399627f
JS		 560 /* Set up ring-0 (ELS) timer */
561 timeout = phba->fc_ratov * 2;
256ec0d0
JS		 562 mod_timer(&vport->els_tmofunc,
563 jiffies + msecs_to_jiffies(1000 * timeout));
9399627f 564 /* Set up heart beat (HB) timer */
256ec0d0
JS		 565 mod_timer(&phba->hb_tmofunc,
566 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 567 phba->hb_outstanding = 0;
568 phba->last_completion_time = jiffies;
9399627f 569 /* Set up error attention (ERATT) polling timer */
256ec0d0
JS		 570 mod_timer(&phba->eratt_poll,
571 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
dea3101e 572
a0c87cbd
JS		 573 if (phba->hba_flag & LINK_DISABLED) {
574 lpfc_printf_log(phba,
575 KERN_ERR, LOG_INIT,
576 "2598 Adapter Link is disabled.\n");
577 lpfc_down_link(phba, pmb);
578 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
580 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
581 lpfc_printf_log(phba,
582 KERN_ERR, LOG_INIT,
583 "2599 Adapter failed to issue DOWN_LINK"
584 " mbox command rc 0x%x\n", rc);
585
586 mempool_free(pmb, phba->mbox_mem_pool);
587 return -EIO;
588 }
e40a02c1 589 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
026abb87
JS		 590 mempool_free(pmb, phba->mbox_mem_pool);
591 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
592 if (rc)
593 return rc;
dea3101e 594 }
595 /* MBOX buffer will be freed in mbox compl */
57127f15 596 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 597 if (!pmb) {
598 phba->link_state = LPFC_HBA_ERROR;
599 return -ENOMEM;
600 }
601
57127f15
JS		 602 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
603 pmb->mbox_cmpl = lpfc_config_async_cmpl;
604 pmb->vport = phba->pport;
605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 606
57127f15
JS		 607 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
608 lpfc_printf_log(phba,
609 KERN_ERR,
610 LOG_INIT,
611 "0456 Adapter failed to issue "
e4e74273 612 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 613 rc);
614 mempool_free(pmb, phba->mbox_mem_pool);
615 }
97207482
JS		 616
617 /* Get Option rom version */
618 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 619 if (!pmb) {
620 phba->link_state = LPFC_HBA_ERROR;
621 return -ENOMEM;
622 }
623
97207482
JS		 624 lpfc_dump_wakeup_param(phba, pmb);
625 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
626 pmb->vport = phba->pport;
627 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
628
629 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 631 "to get Option ROM version status x%x\n", rc);
97207482
JS		 632 mempool_free(pmb, phba->mbox_mem_pool);
633 }
634
d7c255b2 635 return 0;
ce8b3ce5
JS		 636}
637
84d1b006
JS		 638/**
639 * lpfc_hba_init_link - Initialize the FC link
640 * @phba: pointer to lpfc hba data structure.
6e7288d9 641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 642 *
643 * This routine will issue the INIT_LINK mailbox command call.
644 * It is available to other drivers through the lpfc_hba data
645 * structure for use as a delayed link up mechanism with the
646 * module parameter lpfc_suppress_link_up.
647 *
648 * Return code
649 * 0 - success
650 * Any other value - error
651 **/
652int
6e7288d9 653lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
1b51197d
JS		 654{
655 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
656}
657
658/**
659 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
660 * @phba: pointer to lpfc hba data structure.
661 * @fc_topology: desired fc topology.
662 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
663 *
664 * This routine will issue the INIT_LINK mailbox command call.
665 * It is available to other drivers through the lpfc_hba data
666 * structure for use as a delayed link up mechanism with the
667 * module parameter lpfc_suppress_link_up.
668 *
669 * Return code
670 * 0 - success
671 * Any other value - error
672 **/
673int
674lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
675 uint32_t flag)
84d1b006
JS		 676{
677 struct lpfc_vport *vport = phba->pport;
678 LPFC_MBOXQ_t *pmb;
679 MAILBOX_t *mb;
680 int rc;
681
682 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
683 if (!pmb) {
684 phba->link_state = LPFC_HBA_ERROR;
685 return -ENOMEM;
686 }
687 mb = &pmb->u.mb;
688 pmb->vport = vport;
689
026abb87
JS		 690 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
691 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
692 !(phba->lmt & LMT_1Gb)) ||
693 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
694 !(phba->lmt & LMT_2Gb)) ||
695 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
696 !(phba->lmt & LMT_4Gb)) ||
697 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
698 !(phba->lmt & LMT_8Gb)) ||
699 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
700 !(phba->lmt & LMT_10Gb)) ||
701 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
702 !(phba->lmt & LMT_16Gb))) {
703 /* Reset link speed to auto */
704 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
705 "1302 Invalid speed for this board:%d "
706 "Reset link speed to auto.\n",
707 phba->cfg_link_speed);
708 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
709 }
1b51197d 710 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
84d1b006 711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1b51197d
JS		 712 if (phba->sli_rev < LPFC_SLI_REV4)
713 lpfc_set_loopback_flag(phba);
6e7288d9 714 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 715 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
717 "0498 Adapter failed to init, mbxCmd x%x "
718 "INIT_LINK, mbxStatus x%x\n",
719 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 720 if (phba->sli_rev <= LPFC_SLI_REV3) {
721 /* Clear all interrupt enable conditions */
722 writel(0, phba->HCregaddr);
723 readl(phba->HCregaddr); /* flush */
724 /* Clear all pending interrupts */
725 writel(0xffffffff, phba->HAregaddr);
726 readl(phba->HAregaddr); /* flush */
727 }
84d1b006 728 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 729 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 730 mempool_free(pmb, phba->mbox_mem_pool);
731 return -EIO;
732 }
e40a02c1 733 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 734 if (flag == MBX_POLL)
735 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 736
737 return 0;
738}
739
740/**
741 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 742 * @phba: pointer to lpfc hba data structure.
743 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 744 *
745 * This routine will issue the DOWN_LINK mailbox command call.
746 * It is available to other drivers through the lpfc_hba data
747 * structure for use to stop the link.
748 *
749 * Return code
750 * 0 - success
751 * Any other value - error
752 **/
753int
6e7288d9 754lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 755{
756 LPFC_MBOXQ_t *pmb;
757 int rc;
758
759 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
760 if (!pmb) {
761 phba->link_state = LPFC_HBA_ERROR;
762 return -ENOMEM;
763 }
764
765 lpfc_printf_log(phba,
766 KERN_ERR, LOG_INIT,
767 "0491 Adapter Link is disabled.\n");
768 lpfc_down_link(phba, pmb);
769 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 770 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 771 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
772 lpfc_printf_log(phba,
773 KERN_ERR, LOG_INIT,
774 "2522 Adapter failed to issue DOWN_LINK"
775 " mbox command rc 0x%x\n", rc);
776
777 mempool_free(pmb, phba->mbox_mem_pool);
778 return -EIO;
779 }
6e7288d9
JS		 780 if (flag == MBX_POLL)
781 mempool_free(pmb, phba->mbox_mem_pool);
782
84d1b006
JS		 783 return 0;
784}
785
e59058c4 786/**
3621a710 787 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 788 * @phba: pointer to lpfc HBA data structure.
789 *
790 * This routine will do LPFC uninitialization before the HBA is reset when
791 * bringing down the SLI Layer.
792 *
793 * Return codes
794 * 0 - success.
795 * Any other value - error.
796 **/
dea3101e 797int
2e0fef85 798lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 799{
1b32f6aa
JS		 800 struct lpfc_vport **vports;
801 int i;
3772a991
JS		 802
803 if (phba->sli_rev <= LPFC_SLI_REV3) {
804 /* Disable interrupts */
805 writel(0, phba->HCregaddr);
806 readl(phba->HCregaddr); /* flush */
807 }
dea3101e 808
1b32f6aa
JS		 809 if (phba->pport->load_flag & FC_UNLOADING)
810 lpfc_cleanup_discovery_resources(phba->pport);
811 else {
812 vports = lpfc_create_vport_work_array(phba);
813 if (vports != NULL)
3772a991
JS		 814 for (i = 0; i <= phba->max_vports &&
815 vports[i] != NULL; i++)
1b32f6aa
JS		 816 lpfc_cleanup_discovery_resources(vports[i]);
817 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 818 }
819 return 0;
dea3101e 820}
821
e59058c4 822/**
3772a991 823 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 824 * @phba: pointer to lpfc HBA data structure.
825 *
826 * This routine will do uninitialization after the HBA is reset when bring
827 * down the SLI Layer.
828 *
829 * Return codes
af901ca1 830 * 0 - success.
e59058c4
JS		 831 * Any other value - error.
832 **/
3772a991
JS		 833static int
834lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 835{
836 struct lpfc_sli *psli = &phba->sli;
837 struct lpfc_sli_ring *pring;
838 struct lpfc_dmabuf *mp, *next_mp;
09372820 839 LIST_HEAD(completions);
41415862
JW		 840 int i;
841
92d7f7b0
JS		 842 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
843 lpfc_sli_hbqbuf_free_all(phba);
844 else {
845 /* Cleanup preposted buffers on the ELS ring */
846 pring = &psli->ring[LPFC_ELS_RING];
847 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
848 list_del(&mp->list);
849 pring->postbufq_cnt--;
850 lpfc_mbuf_free(phba, mp->virt, mp->phys);
851 kfree(mp);
852 }
41415862
JW		 853 }
854
09372820 855 spin_lock_irq(&phba->hbalock);
41415862
JW		 856 for (i = 0; i < psli->num_rings; i++) {
857 pring = &psli->ring[i];
09372820
JS		 858
859 /* At this point in time the HBA is either reset or DOA. Either
860 * way, nothing should be on txcmplq as it will NEVER complete.
861 */
862 list_splice_init(&pring->txcmplq, &completions);
09372820
JS		 863 spin_unlock_irq(&phba->hbalock);
864
a257bf90
JS		 865 /* Cancel all the IOCBs from the completions list */
866 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
867 IOERR_SLI_ABORTED);
09372820 868
41415862 869 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 870 spin_lock_irq(&phba->hbalock);
41415862 871 }
09372820 872 spin_unlock_irq(&phba->hbalock);
41415862
JW		 873
874 return 0;
875}
5af5eee7 876
da0436e9
JS		 877/**
878 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
879 * @phba: pointer to lpfc HBA data structure.
880 *
881 * This routine will do uninitialization after the HBA is reset when bring
882 * down the SLI Layer.
883 *
884 * Return codes
af901ca1 885 * 0 - success.
da0436e9
JS		 886 * Any other value - error.
887 **/
888static int
889lpfc_hba_down_post_s4(struct lpfc_hba *phba)
890{
891 struct lpfc_scsi_buf *psb, *psb_next;
892 LIST_HEAD(aborts);
893 int ret;
894 unsigned long iflag = 0;
0f65ff68
JS		 895 struct lpfc_sglq *sglq_entry = NULL;
896
da0436e9
JS		 897 ret = lpfc_hba_down_post_s3(phba);
898 if (ret)
899 return ret;
900 /* At this point in time the HBA is either reset or DOA. Either
901 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
902 * on the lpfc_sgl_list so that it can either be freed if the
903 * driver is unloading or reposted if the driver is restarting
904 * the port.
905 */
906 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
907 /* scsl_buf_list */
908 /* abts_sgl_list_lock required because worker thread uses this
909 * list.
910 */
911 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 912 list_for_each_entry(sglq_entry,
913 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
914 sglq_entry->state = SGL_FREED;
915
da0436e9
JS		 916 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
917 &phba->sli4_hba.lpfc_sgl_list);
918 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
919 /* abts_scsi_buf_list_lock required because worker thread uses this
920 * list.
921 */
922 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
923 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
924 &aborts);
925 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
926 spin_unlock_irq(&phba->hbalock);
927
928 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
929 psb->pCmd = NULL;
930 psb->status = IOSTAT_SUCCESS;
931 }
a40fc5f0
JS		 932 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
933 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
934 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
da0436e9
JS		 935 return 0;
936}
937
938/**
939 * lpfc_hba_down_post - Wrapper func for hba down post routine
940 * @phba: pointer to lpfc HBA data structure.
941 *
942 * This routine wraps the actual SLI3 or SLI4 routine for performing
943 * uninitialization after the HBA is reset when bring down the SLI Layer.
944 *
945 * Return codes
af901ca1 946 * 0 - success.
da0436e9
JS		 947 * Any other value - error.
948 **/
949int
950lpfc_hba_down_post(struct lpfc_hba *phba)
951{
952 return (*phba->lpfc_hba_down_post)(phba);
953}
41415862 954
e59058c4 955/**
3621a710 956 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 957 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
958 *
959 * This is the HBA-timer timeout handler registered to the lpfc driver. When
960 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
961 * work-port-events bitmap and the worker thread is notified. This timeout
962 * event will be used by the worker thread to invoke the actual timeout
963 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
964 * be performed in the timeout handler and the HBA timeout event bit shall
965 * be cleared by the worker thread after it has taken the event bitmap out.
966 **/
a6ababd2 967static void
858c9f6c
JS		 968lpfc_hb_timeout(unsigned long ptr)
969{
970 struct lpfc_hba *phba;
5e9d9b82 971 uint32_t tmo_posted;
858c9f6c
JS		 972 unsigned long iflag;
973
974 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 975
976 /* Check for heart beat timeout conditions */
858c9f6c 977 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 978 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
979 if (!tmo_posted)
858c9f6c
JS		 980 phba->pport->work_port_events |= WORKER_HB_TMO;
981 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
982
9399627f 983 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 984 if (!tmo_posted)
985 lpfc_worker_wake_up(phba);
858c9f6c
JS		 986 return;
987}
988
19ca7609
JS		 989/**
990 * lpfc_rrq_timeout - The RRQ-timer timeout handler
991 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
992 *
993 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
994 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
995 * work-port-events bitmap and the worker thread is notified. This timeout
996 * event will be used by the worker thread to invoke the actual timeout
997 * handler routine, lpfc_rrq_handler. Any periodical operations will
998 * be performed in the timeout handler and the RRQ timeout event bit shall
999 * be cleared by the worker thread after it has taken the event bitmap out.
1000 **/
1001static void
1002lpfc_rrq_timeout(unsigned long ptr)
1003{
1004 struct lpfc_hba *phba;
19ca7609
JS		 1005 unsigned long iflag;
1006
1007 phba = (struct lpfc_hba *)ptr;
1008 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
06918ac5
JS		 1009 if (!(phba->pport->load_flag & FC_UNLOADING))
1010 phba->hba_flag |= HBA_RRQ_ACTIVE;
1011 else
1012 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
19ca7609 1013 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
06918ac5
JS		 1014
1015 if (!(phba->pport->load_flag & FC_UNLOADING))
1016 lpfc_worker_wake_up(phba);
19ca7609
JS		 1017}
1018
e59058c4 1019/**
3621a710 1020 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 1021 * @phba: pointer to lpfc hba data structure.
1022 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1023 *
1024 * This is the callback function to the lpfc heart-beat mailbox command.
1025 * If configured, the lpfc driver issues the heart-beat mailbox command to
1026 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1027 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1028 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1029 * heart-beat outstanding state. Once the mailbox command comes back and
1030 * no error conditions detected, the heart-beat mailbox command timer is
1031 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1032 * state is cleared for the next heart-beat. If the timer expired with the
1033 * heart-beat outstanding state set, the driver will put the HBA offline.
1034 **/
858c9f6c
JS		 1035static void
1036lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1037{
1038 unsigned long drvr_flag;
1039
1040 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1041 phba->hb_outstanding = 0;
1042 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1043
9399627f 1044 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1045 mempool_free(pmboxq, phba->mbox_mem_pool);
1046 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1047 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1048 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c 1049 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1050 jiffies +
1051 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 1052 return;
1053}
1054
e59058c4 1055/**
3621a710 1056 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1057 * @phba: pointer to lpfc hba data structure.
1058 *
1059 * This is the actual HBA-timer timeout handler to be invoked by the worker
1060 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1061 * handler performs any periodic operations needed for the device. If such
1062 * periodic event has already been attended to either in the interrupt handler
1063 * or by processing slow-ring or fast-ring events within the HBA-timer
1064 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1065 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1066 * is configured and there is no heart-beat mailbox command outstanding, a
1067 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1068 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1069 * to offline.
1070 **/
858c9f6c
JS		 1071void
1072lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1073{
45ed1190 1074 struct lpfc_vport **vports;
858c9f6c 1075 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1076 struct lpfc_dmabuf *buf_ptr;
45ed1190 1077 int retval, i;
858c9f6c 1078 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1079 LIST_HEAD(completions);
858c9f6c 1080
45ed1190
JS		 1081 vports = lpfc_create_vport_work_array(phba);
1082 if (vports != NULL)
1083 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1084 lpfc_rcv_seq_check_edtov(vports[i]);
1085 lpfc_destroy_vport_work_array(phba, vports);
1086
858c9f6c 1087 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1088 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1089 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1090 return;
1091
1092 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c 1093
256ec0d0
JS		 1094 if (time_after(phba->last_completion_time +
1095 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1096 jiffies)) {
858c9f6c
JS		 1097 spin_unlock_irq(&phba->pport->work_port_lock);
1098 if (!phba->hb_outstanding)
1099 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1100 jiffies +
1101 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
858c9f6c
JS		 1102 else
1103 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1104 jiffies +
1105 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
858c9f6c
JS		 1106 return;
1107 }
1108 spin_unlock_irq(&phba->pport->work_port_lock);
1109
0ff10d46
JS		 1110 if (phba->elsbuf_cnt &&
1111 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1112 spin_lock_irq(&phba->hbalock);
1113 list_splice_init(&phba->elsbuf, &completions);
1114 phba->elsbuf_cnt = 0;
1115 phba->elsbuf_prev_cnt = 0;
1116 spin_unlock_irq(&phba->hbalock);
1117
1118 while (!list_empty(&completions)) {
1119 list_remove_head(&completions, buf_ptr,
1120 struct lpfc_dmabuf, list);
1121 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1122 kfree(buf_ptr);
1123 }
1124 }
1125 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1126
858c9f6c 1127 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1128 if (phba->cfg_enable_hba_heartbeat) {
1129 if (!phba->hb_outstanding) {
bc73905a
JS		 1130 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1131 (list_empty(&psli->mboxq))) {
1132 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1133 GFP_KERNEL);
1134 if (!pmboxq) {
1135 mod_timer(&phba->hb_tmofunc,
1136 jiffies +
256ec0d0
JS		 1137 msecs_to_jiffies(1000 *
1138 LPFC_HB_MBOX_INTERVAL));
bc73905a
JS		 1139 return;
1140 }
1141
1142 lpfc_heart_beat(phba, pmboxq);
1143 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1144 pmboxq->vport = phba->pport;
1145 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1146 MBX_NOWAIT);
1147
1148 if (retval != MBX_BUSY &&
1149 retval != MBX_SUCCESS) {
1150 mempool_free(pmboxq,
1151 phba->mbox_mem_pool);
1152 mod_timer(&phba->hb_tmofunc,
1153 jiffies +
256ec0d0
JS		 1154 msecs_to_jiffies(1000 *
1155 LPFC_HB_MBOX_INTERVAL));
bc73905a
JS		 1156 return;
1157 }
1158 phba->skipped_hb = 0;
1159 phba->hb_outstanding = 1;
1160 } else if (time_before_eq(phba->last_completion_time,
1161 phba->skipped_hb)) {
1162 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1163 "2857 Last completion time not "
1164 " updated in %d ms\n",
1165 jiffies_to_msecs(jiffies
1166 - phba->last_completion_time));
1167 } else
1168 phba->skipped_hb = jiffies;
1169
858c9f6c 1170 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1171 jiffies +
1172 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
858c9f6c 1173 return;
13815c83
JS		 1174 } else {
1175 /*
1176 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1177 * we need to give the hb mailbox cmd a chance to
1178 * complete or TMO.
13815c83 1179 */
dcf2a4e0
JS		 1180 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1181 "0459 Adapter heartbeat still out"
1182 "standing:last compl time was %d ms.\n",
1183 jiffies_to_msecs(jiffies
1184 - phba->last_completion_time));
1185 mod_timer(&phba->hb_tmofunc,
256ec0d0
JS		 1186 jiffies +
1187 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
858c9f6c 1188 }
858c9f6c
JS		 1189 }
1190}
1191
e59058c4 1192/**
3621a710 1193 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1194 * @phba: pointer to lpfc hba data structure.
1195 *
1196 * This routine is called to bring the HBA offline when HBA hardware error
1197 * other than Port Error 6 has been detected.
1198 **/
09372820
JS		 1199static void
1200lpfc_offline_eratt(struct lpfc_hba *phba)
1201{
1202 struct lpfc_sli *psli = &phba->sli;
1203
1204 spin_lock_irq(&phba->hbalock);
f4b4c68f 1205 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820 1206 spin_unlock_irq(&phba->hbalock);
618a5230 1207 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
09372820
JS		 1208
1209 lpfc_offline(phba);
1210 lpfc_reset_barrier(phba);
f4b4c68f 1211 spin_lock_irq(&phba->hbalock);
09372820 1212 lpfc_sli_brdreset(phba);
f4b4c68f 1213 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1214 lpfc_hba_down_post(phba);
1215 lpfc_sli_brdready(phba, HS_MBRDY);
1216 lpfc_unblock_mgmt_io(phba);
1217 phba->link_state = LPFC_HBA_ERROR;
1218 return;
1219}
1220
da0436e9
JS		 1221/**
1222 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1223 * @phba: pointer to lpfc hba data structure.
1224 *
1225 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1226 * other than Port Error 6 has been detected.
1227 **/
a88dbb6a 1228void
da0436e9
JS		 1229lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1230{
618a5230 1231 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
da0436e9
JS		 1232 lpfc_offline(phba);
1233 lpfc_sli4_brdreset(phba);
1234 lpfc_hba_down_post(phba);
1235 lpfc_sli4_post_status_check(phba);
1236 lpfc_unblock_mgmt_io(phba);
1237 phba->link_state = LPFC_HBA_ERROR;
1238}
1239
a257bf90
JS		 1240/**
1241 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1242 * @phba: pointer to lpfc hba data structure.
1243 *
1244 * This routine is invoked to handle the deferred HBA hardware error
1245 * conditions. This type of error is indicated by HBA by setting ER1
1246 * and another ER bit in the host status register. The driver will
1247 * wait until the ER1 bit clears before handling the error condition.
1248 **/
1249static void
1250lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1251{
1252 uint32_t old_host_status = phba->work_hs;
1253 struct lpfc_sli_ring *pring;
1254 struct lpfc_sli *psli = &phba->sli;
1255
f4b4c68f
JS		 1256 /* If the pci channel is offline, ignore possible errors,
1257 * since we cannot communicate with the pci card anyway.
1258 */
1259 if (pci_channel_offline(phba->pcidev)) {
1260 spin_lock_irq(&phba->hbalock);
1261 phba->hba_flag &= ~DEFER_ERATT;
1262 spin_unlock_irq(&phba->hbalock);
1263 return;
1264 }
1265
a257bf90
JS		 1266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1267 "0479 Deferred Adapter Hardware Error "
1268 "Data: x%x x%x x%x\n",
1269 phba->work_hs,
1270 phba->work_status[0], phba->work_status[1]);
1271
1272 spin_lock_irq(&phba->hbalock);
f4b4c68f 1273 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1274 spin_unlock_irq(&phba->hbalock);
1275
1276
1277 /*
1278 * Firmware stops when it triggred erratt. That could cause the I/Os
1279 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1280 * SCSI layer retry it after re-establishing link.
1281 */
1282 pring = &psli->ring[psli->fcp_ring];
1283 lpfc_sli_abort_iocb_ring(phba, pring);
1284
1285 /*
1286 * There was a firmware error. Take the hba offline and then
1287 * attempt to restart it.
1288 */
618a5230 1289 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
a257bf90
JS		 1290 lpfc_offline(phba);
1291
1292 /* Wait for the ER1 bit to clear.*/
1293 while (phba->work_hs & HS_FFER1) {
1294 msleep(100);
9940b97b
JS		 1295 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1296 phba->work_hs = UNPLUG_ERR ;
1297 break;
1298 }
a257bf90
JS		 1299 /* If driver is unloading let the worker thread continue */
1300 if (phba->pport->load_flag & FC_UNLOADING) {
1301 phba->work_hs = 0;
1302 break;
1303 }
1304 }
1305
1306 /*
1307 * This is to ptrotect against a race condition in which
1308 * first write to the host attention register clear the
1309 * host status register.
1310 */
1311 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1312 phba->work_hs = old_host_status & ~HS_FFER1;
1313
3772a991 1314 spin_lock_irq(&phba->hbalock);
a257bf90 1315 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1316 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1317 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1318 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1319}
1320
3772a991
JS		 1321static void
1322lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1323{
1324 struct lpfc_board_event_header board_event;
1325 struct Scsi_Host *shost;
1326
1327 board_event.event_type = FC_REG_BOARD_EVENT;
1328 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1329 shost = lpfc_shost_from_vport(phba->pport);
1330 fc_host_post_vendor_event(shost, fc_get_event_number(),
1331 sizeof(board_event),
1332 (char *) &board_event,
1333 LPFC_NL_VENDOR_ID);
1334}
1335
e59058c4 1336/**
3772a991 1337 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1338 * @phba: pointer to lpfc hba data structure.
1339 *
1340 * This routine is invoked to handle the following HBA hardware error
1341 * conditions:
1342 * 1 - HBA error attention interrupt
1343 * 2 - DMA ring index out of range
1344 * 3 - Mailbox command came back as unknown
1345 **/
3772a991
JS		 1346static void
1347lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1348{
2e0fef85 1349 struct lpfc_vport *vport = phba->pport;
2e0fef85 1350 struct lpfc_sli *psli = &phba->sli;
dea3101e 1351 struct lpfc_sli_ring *pring;
d2873e4c 1352 uint32_t event_data;
57127f15
JS		 1353 unsigned long temperature;
1354 struct temp_event temp_event_data;
92d7f7b0 1355 struct Scsi_Host *shost;
2e0fef85 1356
8d63f375 1357 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1358 * since we cannot communicate with the pci card anyway.
1359 */
1360 if (pci_channel_offline(phba->pcidev)) {
1361 spin_lock_irq(&phba->hbalock);
1362 phba->hba_flag &= ~DEFER_ERATT;
1363 spin_unlock_irq(&phba->hbalock);
8d63f375 1364 return;
3772a991
JS		 1365 }
1366
13815c83
JS		 1367 /* If resets are disabled then leave the HBA alone and return */
1368 if (!phba->cfg_enable_hba_reset)
1369 return;
dea3101e 1370
ea2151b4 1371 /* Send an internal error event to mgmt application */
3772a991 1372 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1373
a257bf90
JS		 1374 if (phba->hba_flag & DEFER_ERATT)
1375 lpfc_handle_deferred_eratt(phba);
1376
dcf2a4e0
JS		 1377 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1378 if (phba->work_hs & HS_FFER6)
1379 /* Re-establishing Link */
1380 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1381 "1301 Re-establishing Link "
1382 "Data: x%x x%x x%x\n",
1383 phba->work_hs, phba->work_status[0],
1384 phba->work_status[1]);
1385 if (phba->work_hs & HS_FFER8)
1386 /* Device Zeroization */
1387 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1388 "2861 Host Authentication device "
1389 "zeroization Data:x%x x%x x%x\n",
1390 phba->work_hs, phba->work_status[0],
1391 phba->work_status[1]);
58da1ffb 1392
92d7f7b0 1393 spin_lock_irq(&phba->hbalock);
f4b4c68f 1394 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1395 spin_unlock_irq(&phba->hbalock);
dea3101e 1396
1397 /*
1398 * Firmware stops when it triggled erratt with HS_FFER6.
1399 * That could cause the I/Os dropped by the firmware.
1400 * Error iocb (I/O) on txcmplq and let the SCSI layer
1401 * retry it after re-establishing link.
1402 */
1403 pring = &psli->ring[psli->fcp_ring];
1404 lpfc_sli_abort_iocb_ring(phba, pring);
1405
dea3101e 1406 /*
1407 * There was a firmware error. Take the hba offline and then
1408 * attempt to restart it.
1409 */
618a5230 1410 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
dea3101e 1411 lpfc_offline(phba);
41415862 1412 lpfc_sli_brdrestart(phba);
dea3101e 1413 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1414 lpfc_unblock_mgmt_io(phba);
dea3101e 1415 return;
1416 }
46fa311e 1417 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1418 } else if (phba->work_hs & HS_CRIT_TEMP) {
1419 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1420 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1421 temp_event_data.event_code = LPFC_CRIT_TEMP;
1422 temp_event_data.data = (uint32_t)temperature;
1423
1424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1425 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1426 "(%ld), taking this port offline "
1427 "Data: x%x x%x x%x\n",
1428 temperature, phba->work_hs,
1429 phba->work_status[0], phba->work_status[1]);
1430
1431 shost = lpfc_shost_from_vport(phba->pport);
1432 fc_host_post_vendor_event(shost, fc_get_event_number(),
1433 sizeof(temp_event_data),
1434 (char *) &temp_event_data,
1435 SCSI_NL_VID_TYPE_PCI
1436 | PCI_VENDOR_ID_EMULEX);
1437
7af67051 1438 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1439 phba->over_temp_state = HBA_OVER_TEMP;
1440 spin_unlock_irq(&phba->hbalock);
09372820 1441 lpfc_offline_eratt(phba);
57127f15 1442
dea3101e 1443 } else {
1444 /* The if clause above forces this code path when the status
9399627f
JS		 1445 * failure is a value other than FFER6. Do not call the offline
1446 * twice. This is the adapter hardware error path.
dea3101e 1447 */
1448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1449 "0457 Adapter Hardware Error "
dea3101e 1450 "Data: x%x x%x x%x\n",
e8b62011 1451 phba->work_hs,
dea3101e 1452 phba->work_status[0], phba->work_status[1]);
1453
d2873e4c 1454 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1455 shost = lpfc_shost_from_vport(vport);
2e0fef85 1456 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1457 sizeof(event_data), (char *) &event_data,
1458 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1459
09372820 1460 lpfc_offline_eratt(phba);
dea3101e 1461 }
9399627f 1462 return;
dea3101e 1463}
1464
618a5230
JS		 1465/**
1466 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1467 * @phba: pointer to lpfc hba data structure.
1468 * @mbx_action: flag for mailbox shutdown action.
1469 *
1470 * This routine is invoked to perform an SLI4 port PCI function reset in
1471 * response to port status register polling attention. It waits for port
1472 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1473 * During this process, interrupt vectors are freed and later requested
1474 * for handling possible port resource change.
1475 **/
1476static int
e10b2022
JS		 1477lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1478 bool en_rn_msg)
618a5230
JS		 1479{
1480 int rc;
1481 uint32_t intr_mode;
1482
1483 /*
1484 * On error status condition, driver need to wait for port
1485 * ready before performing reset.
1486 */
1487 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1488 if (!rc) {
1489 /* need reset: attempt for port recovery */
e10b2022
JS		 1490 if (en_rn_msg)
1491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1492 "2887 Reset Needed: Attempting Port "
1493 "Recovery...\n");
618a5230
JS		 1494 lpfc_offline_prep(phba, mbx_action);
1495 lpfc_offline(phba);
1496 /* release interrupt for possible resource change */
1497 lpfc_sli4_disable_intr(phba);
1498 lpfc_sli_brdrestart(phba);
1499 /* request and enable interrupt */
1500 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1501 if (intr_mode == LPFC_INTR_ERROR) {
1502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1503 "3175 Failed to enable interrupt\n");
1504 return -EIO;
1505 } else {
1506 phba->intr_mode = intr_mode;
1507 }
1508 rc = lpfc_online(phba);
1509 if (rc == 0)
1510 lpfc_unblock_mgmt_io(phba);
1511 }
1512 return rc;
1513}
1514
da0436e9
JS		 1515/**
1516 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1517 * @phba: pointer to lpfc hba data structure.
1518 *
1519 * This routine is invoked to handle the SLI4 HBA hardware error attention
1520 * conditions.
1521 **/
1522static void
1523lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1524{
1525 struct lpfc_vport *vport = phba->pport;
1526 uint32_t event_data;
1527 struct Scsi_Host *shost;
2fcee4bf 1528 uint32_t if_type;
2e90f4b5
JS		 1529 struct lpfc_register portstat_reg = {0};
1530 uint32_t reg_err1, reg_err2;
1531 uint32_t uerrlo_reg, uemasklo_reg;
1532 uint32_t pci_rd_rc1, pci_rd_rc2;
e10b2022 1533 bool en_rn_msg = true;
73d91e50 1534 int rc;
da0436e9
JS		 1535
1536 /* If the pci channel is offline, ignore possible errors, since
1537 * we cannot communicate with the pci card anyway.
1538 */
1539 if (pci_channel_offline(phba->pcidev))
1540 return;
1541 /* If resets are disabled then leave the HBA alone and return */
1542 if (!phba->cfg_enable_hba_reset)
1543 return;
1544
2fcee4bf
JS		 1545 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1546 switch (if_type) {
1547 case LPFC_SLI_INTF_IF_TYPE_0:
2e90f4b5
JS		 1548 pci_rd_rc1 = lpfc_readl(
1549 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1550 &uerrlo_reg);
1551 pci_rd_rc2 = lpfc_readl(
1552 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1553 &uemasklo_reg);
1554 /* consider PCI bus read error as pci_channel_offline */
1555 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1556 return;
2fcee4bf
JS		 1557 lpfc_sli4_offline_eratt(phba);
1558 break;
1559 case LPFC_SLI_INTF_IF_TYPE_2:
2e90f4b5
JS		 1560 pci_rd_rc1 = lpfc_readl(
1561 phba->sli4_hba.u.if_type2.STATUSregaddr,
1562 &portstat_reg.word0);
1563 /* consider PCI bus read error as pci_channel_offline */
6b5151fd
JS		 1564 if (pci_rd_rc1 == -EIO) {
1565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1566 "3151 PCI bus read access failure: x%x\n",
1567 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2e90f4b5 1568 return;
6b5151fd 1569 }
2e90f4b5
JS		 1570 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1571 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2fcee4bf
JS		 1572 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1573 /* TODO: Register for Overtemp async events. */
1574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1575 "2889 Port Overtemperature event, "
026abb87 1576 "taking port offline\n");
2fcee4bf
JS		 1577 spin_lock_irq(&phba->hbalock);
1578 phba->over_temp_state = HBA_OVER_TEMP;
1579 spin_unlock_irq(&phba->hbalock);
1580 lpfc_sli4_offline_eratt(phba);
2e90f4b5 1581 break;
2fcee4bf 1582 }
2e90f4b5 1583 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
e10b2022 1584 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2e90f4b5 1585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e10b2022
JS		 1586 "3143 Port Down: Firmware Update "
1587 "Detected\n");
1588 en_rn_msg = false;
1589 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2e90f4b5
JS		 1590 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1592 "3144 Port Down: Debug Dump\n");
1593 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1594 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1595 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1596 "3145 Port Down: Provisioning\n");
618a5230
JS		 1597
1598 /* Check port status register for function reset */
e10b2022
JS		 1599 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1600 en_rn_msg);
618a5230
JS		 1601 if (rc == 0) {
1602 /* don't report event on forced debug dump */
1603 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1604 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1605 return;
1606 else
1607 break;
2fcee4bf 1608 }
618a5230 1609 /* fall through for not able to recover */
6b5151fd
JS		 1610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1611 "3152 Unrecoverable error, bring the port "
1612 "offline\n");
2fcee4bf
JS		 1613 lpfc_sli4_offline_eratt(phba);
1614 break;
1615 case LPFC_SLI_INTF_IF_TYPE_1:
1616 default:
1617 break;
1618 }
2e90f4b5
JS		 1619 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1620 "3123 Report dump event to upper layer\n");
1621 /* Send an internal error event to mgmt application */
1622 lpfc_board_errevt_to_mgmt(phba);
1623
1624 event_data = FC_REG_DUMP_EVENT;
1625 shost = lpfc_shost_from_vport(vport);
1626 fc_host_post_vendor_event(shost, fc_get_event_number(),
1627 sizeof(event_data), (char *) &event_data,
1628 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
da0436e9
JS		 1629}
1630
1631/**
1632 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1633 * @phba: pointer to lpfc HBA data structure.
1634 *
1635 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1636 * routine from the API jump table function pointer from the lpfc_hba struct.
1637 *
1638 * Return codes
af901ca1 1639 * 0 - success.
da0436e9
JS		 1640 * Any other value - error.
1641 **/
1642void
1643lpfc_handle_eratt(struct lpfc_hba *phba)
1644{
1645 (*phba->lpfc_handle_eratt)(phba);
1646}
1647
e59058c4 1648/**
3621a710 1649 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1650 * @phba: pointer to lpfc hba data structure.
1651 *
1652 * This routine is invoked from the worker thread to handle a HBA host
1653 * attention link event.
1654 **/
dea3101e 1655void
2e0fef85 1656lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1657{
2e0fef85
JS		 1658 struct lpfc_vport *vport = phba->pport;
1659 struct lpfc_sli *psli = &phba->sli;
dea3101e 1660 LPFC_MBOXQ_t *pmb;
1661 volatile uint32_t control;
1662 struct lpfc_dmabuf *mp;
09372820 1663 int rc = 0;
dea3101e 1664
1665 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1666 if (!pmb) {
1667 rc = 1;
dea3101e 1668 goto lpfc_handle_latt_err_exit;
09372820 1669 }
dea3101e 1670
1671 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1672 if (!mp) {
1673 rc = 2;
dea3101e 1674 goto lpfc_handle_latt_free_pmb;
09372820 1675 }
dea3101e 1676
1677 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1678 if (!mp->virt) {
1679 rc = 3;
dea3101e 1680 goto lpfc_handle_latt_free_mp;
09372820 1681 }
dea3101e 1682
6281bfe0 1683 /* Cleanup any outstanding ELS commands */
549e55cd 1684 lpfc_els_flush_all_cmd(phba);
dea3101e 1685
1686 psli->slistat.link_event++;
76a95d75
JS		 1687 lpfc_read_topology(phba, pmb, mp);
1688 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1689 pmb->vport = vport;
0d2b6b83
JS		 1690 /* Block ELS IOCBs until we have processed this mbox command */
1691 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1692 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1693 if (rc == MBX_NOT_FINISHED) {
1694 rc = 4;
14691150 1695 goto lpfc_handle_latt_free_mbuf;
09372820 1696 }
dea3101e 1697
1698 /* Clear Link Attention in HA REG */
2e0fef85 1699 spin_lock_irq(&phba->hbalock);
dea3101e 1700 writel(HA_LATT, phba->HAregaddr);
1701 readl(phba->HAregaddr); /* flush */
2e0fef85 1702 spin_unlock_irq(&phba->hbalock);
dea3101e 1703
1704 return;
1705
14691150 1706lpfc_handle_latt_free_mbuf:
0d2b6b83 1707 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1708 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1709lpfc_handle_latt_free_mp:
1710 kfree(mp);
1711lpfc_handle_latt_free_pmb:
1dcb58e5 1712 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1713lpfc_handle_latt_err_exit:
1714 /* Enable Link attention interrupts */
2e0fef85 1715 spin_lock_irq(&phba->hbalock);
dea3101e 1716 psli->sli_flag |= LPFC_PROCESS_LA;
1717 control = readl(phba->HCregaddr);
1718 control |= HC_LAINT_ENA;
1719 writel(control, phba->HCregaddr);
1720 readl(phba->HCregaddr); /* flush */
1721
1722 /* Clear Link Attention in HA REG */
1723 writel(HA_LATT, phba->HAregaddr);
1724 readl(phba->HAregaddr); /* flush */
2e0fef85 1725 spin_unlock_irq(&phba->hbalock);
dea3101e 1726 lpfc_linkdown(phba);
2e0fef85 1727 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1728
09372820
JS		 1729 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1730 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1731
1732 return;
1733}
1734
e59058c4 1735/**
3621a710 1736 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1737 * @phba: pointer to lpfc hba data structure.
1738 * @vpd: pointer to the vital product data.
1739 * @len: length of the vital product data in bytes.
1740 *
1741 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1742 * an array of characters. In this routine, the ModelName, ProgramType, and
1743 * ModelDesc, etc. fields of the phba data structure will be populated.
1744 *
1745 * Return codes
1746 * 0 - pointer to the VPD passed in is NULL
1747 * 1 - success
1748 **/
3772a991 1749int
2e0fef85 1750lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1751{
1752 uint8_t lenlo, lenhi;
07da60c1 1753 int Length;
dea3101e 1754 int i, j;
1755 int finished = 0;
1756 int index = 0;
1757
1758 if (!vpd)
1759 return 0;
1760
1761 /* Vital Product */
ed957684 1762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1763 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1764 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1765 (uint32_t) vpd[3]);
74b72a59 1766 while (!finished && (index < (len - 4))) {
dea3101e 1767 switch (vpd[index]) {
1768 case 0x82:
74b72a59 1769 case 0x91:
dea3101e 1770 index += 1;
1771 lenlo = vpd[index];
1772 index += 1;
1773 lenhi = vpd[index];
1774 index += 1;
1775 i = ((((unsigned short)lenhi) << 8) + lenlo);
1776 index += i;
1777 break;
1778 case 0x90:
1779 index += 1;
1780 lenlo = vpd[index];
1781 index += 1;
1782 lenhi = vpd[index];
1783 index += 1;
1784 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1785 if (Length > len - index)
1786 Length = len - index;
dea3101e 1787 while (Length > 0) {
1788 /* Look for Serial Number */
1789 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1790 index += 2;
1791 i = vpd[index];
1792 index += 1;
1793 j = 0;
1794 Length -= (3+i);
1795 while(i--) {
1796 phba->SerialNumber[j++] = vpd[index++];
1797 if (j == 31)
1798 break;
1799 }
1800 phba->SerialNumber[j] = 0;
1801 continue;
1802 }
1803 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1804 phba->vpd_flag |= VPD_MODEL_DESC;
1805 index += 2;
1806 i = vpd[index];
1807 index += 1;
1808 j = 0;
1809 Length -= (3+i);
1810 while(i--) {
1811 phba->ModelDesc[j++] = vpd[index++];
1812 if (j == 255)
1813 break;
1814 }
1815 phba->ModelDesc[j] = 0;
1816 continue;
1817 }
1818 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1819 phba->vpd_flag |= VPD_MODEL_NAME;
1820 index += 2;
1821 i = vpd[index];
1822 index += 1;
1823 j = 0;
1824 Length -= (3+i);
1825 while(i--) {
1826 phba->ModelName[j++] = vpd[index++];
1827 if (j == 79)
1828 break;
1829 }
1830 phba->ModelName[j] = 0;
1831 continue;
1832 }
1833 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1834 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1835 index += 2;
1836 i = vpd[index];
1837 index += 1;
1838 j = 0;
1839 Length -= (3+i);
1840 while(i--) {
1841 phba->ProgramType[j++] = vpd[index++];
1842 if (j == 255)
1843 break;
1844 }
1845 phba->ProgramType[j] = 0;
1846 continue;
1847 }
1848 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1849 phba->vpd_flag |= VPD_PORT;
1850 index += 2;
1851 i = vpd[index];
1852 index += 1;
1853 j = 0;
1854 Length -= (3+i);
1855 while(i--) {
cd1c8301
JS		 1856 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1857 (phba->sli4_hba.pport_name_sta ==
1858 LPFC_SLI4_PPNAME_GET)) {
1859 j++;
1860 index++;
1861 } else
1862 phba->Port[j++] = vpd[index++];
1863 if (j == 19)
1864 break;
dea3101e 1865 }
cd1c8301
JS		 1866 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1867 (phba->sli4_hba.pport_name_sta ==
1868 LPFC_SLI4_PPNAME_NON))
1869 phba->Port[j] = 0;
dea3101e 1870 continue;
1871 }
1872 else {
1873 index += 2;
1874 i = vpd[index];
1875 index += 1;
1876 index += i;
1877 Length -= (3 + i);
1878 }
1879 }
1880 finished = 0;
1881 break;
1882 case 0x78:
1883 finished = 1;
1884 break;
1885 default:
1886 index ++;
1887 break;
1888 }
74b72a59 1889 }
dea3101e 1890
1891 return(1);
1892}
1893
e59058c4 1894/**
3621a710 1895 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1896 * @phba: pointer to lpfc hba data structure.
1897 * @mdp: pointer to the data structure to hold the derived model name.
1898 * @descp: pointer to the data structure to hold the derived description.
1899 *
1900 * This routine retrieves HBA's description based on its registered PCI device
1901 * ID. The @descp passed into this function points to an array of 256 chars. It
1902 * shall be returned with the model name, maximum speed, and the host bus type.
1903 * The @mdp passed into this function points to an array of 80 chars. When the
1904 * function returns, the @mdp will be filled with the model name.
1905 **/
dea3101e 1906static void
2e0fef85 1907lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1908{
1909 lpfc_vpd_t *vp;
fefcb2b6 1910 uint16_t dev_id = phba->pcidev->device;
74b72a59 1911 int max_speed;
84774a4d 1912 int GE = 0;
da0436e9 1913 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1914 struct {
a747c9ce
JS		 1915 char *name;
1916 char *bus;
1917 char *function;
1918 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1919
1920 if (mdp && mdp[0] != '\0'
1921 && descp && descp[0] != '\0')
1922 return;
1923
c0c11512
JS		 1924 if (phba->lmt & LMT_16Gb)
1925 max_speed = 16;
1926 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1927 max_speed = 10;
1928 else if (phba->lmt & LMT_8Gb)
1929 max_speed = 8;
1930 else if (phba->lmt & LMT_4Gb)
1931 max_speed = 4;
1932 else if (phba->lmt & LMT_2Gb)
1933 max_speed = 2;
4169d868 1934 else if (phba->lmt & LMT_1Gb)
74b72a59 1935 max_speed = 1;
4169d868
JS		 1936 else
1937 max_speed = 0;
dea3101e 1938
1939 vp = &phba->vpd;
dea3101e 1940
e4adb204 1941 switch (dev_id) {
06325e74 1942 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1943 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1944 break;
dea3101e 1945 case PCI_DEVICE_ID_SUPERFLY:
1946 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1947 m = (typeof(m)){"LP7000", "PCI",
1948 "Fibre Channel Adapter"};
dea3101e 1949 else
a747c9ce
JS		 1950 m = (typeof(m)){"LP7000E", "PCI",
1951 "Fibre Channel Adapter"};
dea3101e 1952 break;
1953 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1954 m = (typeof(m)){"LP8000", "PCI",
1955 "Fibre Channel Adapter"};
dea3101e 1956 break;
1957 case PCI_DEVICE_ID_CENTAUR:
1958 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1959 m = (typeof(m)){"LP9002", "PCI",
1960 "Fibre Channel Adapter"};
dea3101e 1961 else
a747c9ce
JS		 1962 m = (typeof(m)){"LP9000", "PCI",
1963 "Fibre Channel Adapter"};
dea3101e 1964 break;
1965 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1966 m = (typeof(m)){"LP952", "PCI",
1967 "Fibre Channel Adapter"};
dea3101e 1968 break;
1969 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1970 m = (typeof(m)){"LP9802", "PCI-X",
1971 "Fibre Channel Adapter"};
dea3101e 1972 break;
1973 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1974 m = (typeof(m)){"LP10000", "PCI-X",
1975 "Fibre Channel Adapter"};
dea3101e 1976 break;
1977 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1978 m = (typeof(m)){"LPX1000", "PCI-X",
1979 "Fibre Channel Adapter"};
dea3101e 1980 break;
1981 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1982 m = (typeof(m)){"LP982", "PCI-X",
1983 "Fibre Channel Adapter"};
dea3101e 1984 break;
1985 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1986 m = (typeof(m)){"LP1050", "PCI-X",
1987 "Fibre Channel Adapter"};
dea3101e 1988 break;
1989 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1990 m = (typeof(m)){"LP11000", "PCI-X2",
1991 "Fibre Channel Adapter"};
dea3101e 1992 break;
e4adb204 1993 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1994 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1995 "Fibre Channel Adapter"};
e4adb204
JSEC		 1996 break;
1997 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1998 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1999 "Fibre Channel Adapter"};
e4adb204
JSEC		 2000 break;
2001 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 2002 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 2003 break;
2004 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 2005 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 2006 break;
2007 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 2008 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 2009 break;
dea3101e 2010 case PCI_DEVICE_ID_BMID:
a747c9ce 2011 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 2012 break;
2013 case PCI_DEVICE_ID_BSMB:
a747c9ce 2014 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 2015 break;
2016 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 2017 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 2018 break;
e4adb204 2019 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 2020 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 2021 break;
2022 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 2023 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 2024 GE = 1;
e4adb204 2025 break;
dea3101e 2026 case PCI_DEVICE_ID_ZMID:
a747c9ce 2027 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 2028 break;
2029 case PCI_DEVICE_ID_ZSMB:
a747c9ce 2030 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 2031 break;
2032 case PCI_DEVICE_ID_LP101:
a747c9ce 2033 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 2034 break;
2035 case PCI_DEVICE_ID_LP10000S:
a747c9ce 2036 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 2037 break;
e4adb204 2038 case PCI_DEVICE_ID_LP11000S:
a747c9ce 2039 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 2040 break;
e4adb204 2041 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 2042 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 2043 break;
b87eab38 2044 case PCI_DEVICE_ID_SAT:
a747c9ce 2045 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2046 break;
2047 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 2048 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2049 break;
2050 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 2051 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2052 break;
2053 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 2054 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2055 break;
2056 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 2057 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2058 break;
2059 case PCI_DEVICE_ID_SAT_S:
a747c9ce 2060 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 2061 break;
84774a4d 2062 case PCI_DEVICE_ID_HORNET:
a747c9ce 2063 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 2064 GE = 1;
2065 break;
2066 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 2067 m = (typeof(m)){"LPev12000", "PCIe IOV",
2068 "Fibre Channel Adapter"};
84774a4d
JS		 2069 break;
2070 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 2071 m = (typeof(m)){"LPev12000", "PCIe IOV",
2072 "Fibre Channel Adapter"};
84774a4d
JS		 2073 break;
2074 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 2075 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2076 "Fibre Channel Adapter"};
84774a4d 2077 break;
da0436e9
JS		 2078 case PCI_DEVICE_ID_TIGERSHARK:
2079 oneConnect = 1;
a747c9ce 2080 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 2081 break;
a747c9ce 2082 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 2083 oneConnect = 1;
a747c9ce
JS		 2084 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2085 break;
2086 case PCI_DEVICE_ID_FALCON:
2087 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2088 "EmulexSecure Fibre"};
6669f9bb 2089 break;
98fc5dd9
JS		 2090 case PCI_DEVICE_ID_BALIUS:
2091 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2092 "Fibre Channel Adapter"};
2093 break;
085c647c 2094 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 2095 case PCI_DEVICE_ID_LANCER_FC_VF:
2096 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 2097 break;
2098 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 2099 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 2100 oneConnect = 1;
079b5c91 2101 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
085c647c 2102 break;
f8cafd38
JS		 2103 case PCI_DEVICE_ID_SKYHAWK:
2104 case PCI_DEVICE_ID_SKYHAWK_VF:
2105 oneConnect = 1;
2106 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2107 break;
5cc36b3c 2108 default:
a747c9ce 2109 m = (typeof(m)){"Unknown", "", ""};
e4adb204 2110 break;
dea3101e 2111 }
74b72a59
JW		 2112
2113 if (mdp && mdp[0] == '\0')
2114 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 2115 /*
2116 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 2117 * and we put the port number on the end
2118 */
2119 if (descp && descp[0] == '\0') {
2120 if (oneConnect)
2121 snprintf(descp, 255,
4169d868 2122 "Emulex OneConnect %s, %s Initiator %s",
a747c9ce 2123 m.name, m.function,
da0436e9 2124 phba->Port);
4169d868
JS		 2125 else if (max_speed == 0)
2126 snprintf(descp, 255,
2127 "Emulex %s %s %s ",
2128 m.name, m.bus, m.function);
da0436e9
JS		 2129 else
2130 snprintf(descp, 255,
2131 "Emulex %s %d%s %s %s",
a747c9ce
JS		 2132 m.name, max_speed, (GE) ? "GE" : "Gb",
2133 m.bus, m.function);
da0436e9 2134 }
dea3101e 2135}
2136
e59058c4 2137/**
3621a710 2138 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 2139 * @phba: pointer to lpfc hba data structure.
2140 * @pring: pointer to a IOCB ring.
2141 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2142 *
2143 * This routine posts a given number of IOCBs with the associated DMA buffer
2144 * descriptors specified by the cnt argument to the given IOCB ring.
2145 *
2146 * Return codes
2147 * The number of IOCBs NOT able to be posted to the IOCB ring.
2148 **/
dea3101e 2149int
495a714c 2150lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2151{
2152 IOCB_t *icmd;
0bd4ca25 2153 struct lpfc_iocbq *iocb;
dea3101e 2154 struct lpfc_dmabuf *mp1, *mp2;
2155
2156 cnt += pring->missbufcnt;
2157
2158 /* While there are buffers to post */
2159 while (cnt > 0) {
2160 /* Allocate buffer for command iocb */
0bd4ca25 2161 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2162 if (iocb == NULL) {
2163 pring->missbufcnt = cnt;
2164 return cnt;
2165 }
dea3101e 2166 icmd = &iocb->iocb;
2167
2168 /* 2 buffers can be posted per command */
2169 /* Allocate buffer to post */
2170 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2171 if (mp1)
98c9ea5c
JS		 2172 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2173 if (!mp1 || !mp1->virt) {
c9475cb0 2174 kfree(mp1);
604a3e30 2175 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2176 pring->missbufcnt = cnt;
2177 return cnt;
2178 }
2179
2180 INIT_LIST_HEAD(&mp1->list);
2181 /* Allocate buffer to post */
2182 if (cnt > 1) {
2183 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2184 if (mp2)
2185 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2186 &mp2->phys);
98c9ea5c 2187 if (!mp2 || !mp2->virt) {
c9475cb0 2188 kfree(mp2);
dea3101e 2189 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2190 kfree(mp1);
604a3e30 2191 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2192 pring->missbufcnt = cnt;
2193 return cnt;
2194 }
2195
2196 INIT_LIST_HEAD(&mp2->list);
2197 } else {
2198 mp2 = NULL;
2199 }
2200
2201 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2202 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2203 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2204 icmd->ulpBdeCount = 1;
2205 cnt--;
2206 if (mp2) {
2207 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2208 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2209 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2210 cnt--;
2211 icmd->ulpBdeCount = 2;
2212 }
2213
2214 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2215 icmd->ulpLe = 1;
2216
3772a991
JS		 2217 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2218 IOCB_ERROR) {
dea3101e 2219 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2220 kfree(mp1);
2221 cnt++;
2222 if (mp2) {
2223 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2224 kfree(mp2);
2225 cnt++;
2226 }
604a3e30 2227 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2228 pring->missbufcnt = cnt;
dea3101e 2229 return cnt;
2230 }
dea3101e 2231 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2232 if (mp2)
dea3101e 2233 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2234 }
2235 pring->missbufcnt = 0;
2236 return 0;
2237}
2238
e59058c4 2239/**
3621a710 2240 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2241 * @phba: pointer to lpfc hba data structure.
2242 *
2243 * This routine posts initial receive IOCB buffers to the ELS ring. The
2244 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2245 * set to 64 IOCBs.
2246 *
2247 * Return codes
2248 * 0 - success (currently always success)
2249 **/
dea3101e 2250static int
2e0fef85 2251lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2252{
2253 struct lpfc_sli *psli = &phba->sli;
2254
2255 /* Ring 0, ELS / CT buffers */
495a714c 2256 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2257 /* Ring 2 - FCP no buffers needed */
2258
2259 return 0;
2260}
2261
2262#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2263
e59058c4 2264/**
3621a710 2265 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2266 * @HashResultPointer: pointer to an array as hash table.
2267 *
2268 * This routine sets up the initial values to the array of hash table entries
2269 * for the LC HBAs.
2270 **/
dea3101e 2271static void
2272lpfc_sha_init(uint32_t * HashResultPointer)
2273{
2274 HashResultPointer[0] = 0x67452301;
2275 HashResultPointer[1] = 0xEFCDAB89;
2276 HashResultPointer[2] = 0x98BADCFE;
2277 HashResultPointer[3] = 0x10325476;
2278 HashResultPointer[4] = 0xC3D2E1F0;
2279}
2280
e59058c4 2281/**
3621a710 2282 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2283 * @HashResultPointer: pointer to an initial/result hash table.
2284 * @HashWorkingPointer: pointer to an working hash table.
2285 *
2286 * This routine iterates an initial hash table pointed by @HashResultPointer
2287 * with the values from the working hash table pointeed by @HashWorkingPointer.
2288 * The results are putting back to the initial hash table, returned through
2289 * the @HashResultPointer as the result hash table.
2290 **/
dea3101e 2291static void
2292lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2293{
2294 int t;
2295 uint32_t TEMP;
2296 uint32_t A, B, C, D, E;
2297 t = 16;
2298 do {
2299 HashWorkingPointer[t] =
2300 S(1,
2301 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2302 8] ^
2303 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2304 } while (++t <= 79);
2305 t = 0;
2306 A = HashResultPointer[0];
2307 B = HashResultPointer[1];
2308 C = HashResultPointer[2];
2309 D = HashResultPointer[3];
2310 E = HashResultPointer[4];
2311
2312 do {
2313 if (t < 20) {
2314 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2315 } else if (t < 40) {
2316 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2317 } else if (t < 60) {
2318 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2319 } else {
2320 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2321 }
2322 TEMP += S(5, A) + E + HashWorkingPointer[t];
2323 E = D;
2324 D = C;
2325 C = S(30, B);
2326 B = A;
2327 A = TEMP;
2328 } while (++t <= 79);
2329
2330 HashResultPointer[0] += A;
2331 HashResultPointer[1] += B;
2332 HashResultPointer[2] += C;
2333 HashResultPointer[3] += D;
2334 HashResultPointer[4] += E;
2335
2336}
2337
e59058c4 2338/**
3621a710 2339 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2340 * @RandomChallenge: pointer to the entry of host challenge random number array.
2341 * @HashWorking: pointer to the entry of the working hash array.
2342 *
2343 * This routine calculates the working hash array referred by @HashWorking
2344 * from the challenge random numbers associated with the host, referred by
2345 * @RandomChallenge. The result is put into the entry of the working hash
2346 * array and returned by reference through @HashWorking.
2347 **/
dea3101e 2348static void
2349lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2350{
2351 *HashWorking = (*RandomChallenge ^ *HashWorking);
2352}
2353
e59058c4 2354/**
3621a710 2355 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2356 * @phba: pointer to lpfc hba data structure.
2357 * @hbainit: pointer to an array of unsigned 32-bit integers.
2358 *
2359 * This routine performs the special handling for LC HBA initialization.
2360 **/
dea3101e 2361void
2362lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2363{
2364 int t;
2365 uint32_t *HashWorking;
2e0fef85 2366 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2367
bbfbbbc1 2368 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2369 if (!HashWorking)
2370 return;
2371
dea3101e 2372 HashWorking[0] = HashWorking[78] = *pwwnn++;
2373 HashWorking[1] = HashWorking[79] = *pwwnn;
2374
2375 for (t = 0; t < 7; t++)
2376 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2377
2378 lpfc_sha_init(hbainit);
2379 lpfc_sha_iterate(hbainit, HashWorking);
2380 kfree(HashWorking);
2381}
2382
e59058c4 2383/**
3621a710 2384 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2385 * @vport: pointer to a virtual N_Port data structure.
2386 *
2387 * This routine performs the necessary cleanups before deleting the @vport.
2388 * It invokes the discovery state machine to perform necessary state
2389 * transitions and to release the ndlps associated with the @vport. Note,
2390 * the physical port is treated as @vport 0.
2391 **/
87af33fe 2392void
2e0fef85 2393lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2394{
87af33fe 2395 struct lpfc_hba *phba = vport->phba;
dea3101e 2396 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2397 int i = 0;
dea3101e 2398
87af33fe
JS		 2399 if (phba->link_state > LPFC_LINK_DOWN)
2400 lpfc_port_link_failure(vport);
2401
2402 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2403 if (!NLP_CHK_NODE_ACT(ndlp)) {
2404 ndlp = lpfc_enable_node(vport, ndlp,
2405 NLP_STE_UNUSED_NODE);
2406 if (!ndlp)
2407 continue;
2408 spin_lock_irq(&phba->ndlp_lock);
2409 NLP_SET_FREE_REQ(ndlp);
2410 spin_unlock_irq(&phba->ndlp_lock);
2411 /* Trigger the release of the ndlp memory */
2412 lpfc_nlp_put(ndlp);
2413 continue;
2414 }
2415 spin_lock_irq(&phba->ndlp_lock);
2416 if (NLP_CHK_FREE_REQ(ndlp)) {
2417 /* The ndlp should not be in memory free mode already */
2418 spin_unlock_irq(&phba->ndlp_lock);
2419 continue;
2420 } else
2421 /* Indicate request for freeing ndlp memory */
2422 NLP_SET_FREE_REQ(ndlp);
2423 spin_unlock_irq(&phba->ndlp_lock);
2424
58da1ffb
JS		 2425 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2426 ndlp->nlp_DID == Fabric_DID) {
2427 /* Just free up ndlp with Fabric_DID for vports */
2428 lpfc_nlp_put(ndlp);
2429 continue;
2430 }
2431
eff4a01b
JS		 2432 /* take care of nodes in unused state before the state
2433 * machine taking action.
2434 */
2435 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2436 lpfc_nlp_put(ndlp);
2437 continue;
2438 }
2439
87af33fe
JS		 2440 if (ndlp->nlp_type & NLP_FABRIC)
2441 lpfc_disc_state_machine(vport, ndlp, NULL,
2442 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2443
87af33fe
JS		 2444 lpfc_disc_state_machine(vport, ndlp, NULL,
2445 NLP_EVT_DEVICE_RM);
2446 }
2447
a8adb832
JS		 2448 /* At this point, ALL ndlp's should be gone
2449 * because of the previous NLP_EVT_DEVICE_RM.
2450 * Lets wait for this to happen, if needed.
2451 */
87af33fe 2452 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2453 if (i++ > 3000) {
87af33fe 2454 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2455 "0233 Nodelist not empty\n");
e47c9093
JS		 2456 list_for_each_entry_safe(ndlp, next_ndlp,
2457 &vport->fc_nodes, nlp_listp) {
2458 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2459 LOG_NODE,
d7c255b2 2460 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2461 "usgmap:x%x refcnt:%d\n",
2462 ndlp->nlp_DID, (void *)ndlp,
2463 ndlp->nlp_usg_map,
2464 atomic_read(
2465 &ndlp->kref.refcount));
2466 }
a8adb832 2467 break;
87af33fe 2468 }
a8adb832
JS		 2469
2470 /* Wait for any activity on ndlps to settle */
2471 msleep(10);
87af33fe 2472 }
1151e3ec 2473 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2474}
2475
e59058c4 2476/**
3621a710 2477 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2478 * @vport: pointer to a virtual N_Port data structure.
2479 *
2480 * This routine stops all the timers associated with a @vport. This function
2481 * is invoked before disabling or deleting a @vport. Note that the physical
2482 * port is treated as @vport 0.
2483 **/
92d7f7b0
JS		 2484void
2485lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2486{
92d7f7b0
JS		 2487 del_timer_sync(&vport->els_tmofunc);
2488 del_timer_sync(&vport->fc_fdmitmo);
92494144 2489 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2490 lpfc_can_disctmo(vport);
2491 return;
dea3101e 2492}
2493
ecfd03c6
JS		 2494/**
2495 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2496 * @phba: pointer to lpfc hba data structure.
2497 *
2498 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2499 * caller of this routine should already hold the host lock.
2500 **/
2501void
2502__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2503{
5ac6b303
JS		 2504 /* Clear pending FCF rediscovery wait flag */
2505 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2506
ecfd03c6
JS		 2507 /* Now, try to stop the timer */
2508 del_timer(&phba->fcf.redisc_wait);
2509}
2510
2511/**
2512 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2513 * @phba: pointer to lpfc hba data structure.
2514 *
2515 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2516 * checks whether the FCF rediscovery wait timer is pending with the host
2517 * lock held before proceeding with disabling the timer and clearing the
2518 * wait timer pendig flag.
2519 **/
2520void
2521lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2522{
2523 spin_lock_irq(&phba->hbalock);
2524 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2525 /* FCF rediscovery timer already fired or stopped */
2526 spin_unlock_irq(&phba->hbalock);
2527 return;
2528 }
2529 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2530 /* Clear failover in progress flags */
2531 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2532 spin_unlock_irq(&phba->hbalock);
2533}
2534
e59058c4 2535/**
3772a991 2536 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2537 * @phba: pointer to lpfc hba data structure.
2538 *
2539 * This routine stops all the timers associated with a HBA. This function is
2540 * invoked before either putting a HBA offline or unloading the driver.
2541 **/
3772a991
JS		 2542void
2543lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2544{
51ef4c26 2545 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2546 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2547 del_timer_sync(&phba->fabric_block_timer);
9399627f 2548 del_timer_sync(&phba->eratt_poll);
3772a991 2549 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2550 if (phba->sli_rev == LPFC_SLI_REV4) {
2551 del_timer_sync(&phba->rrq_tmr);
2552 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2553 }
3772a991
JS		 2554 phba->hb_outstanding = 0;
2555
2556 switch (phba->pci_dev_grp) {
2557 case LPFC_PCI_DEV_LP:
2558 /* Stop any LightPulse device specific driver timers */
2559 del_timer_sync(&phba->fcp_poll_timer);
2560 break;
2561 case LPFC_PCI_DEV_OC:
2562 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2563 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2564 break;
2565 default:
2566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2567 "0297 Invalid device group (x%x)\n",
2568 phba->pci_dev_grp);
2569 break;
2570 }
2e0fef85 2571 return;
dea3101e 2572}
2573
e59058c4 2574/**
3621a710 2575 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2576 * @phba: pointer to lpfc hba data structure.
2577 *
2578 * This routine marks a HBA's management interface as blocked. Once the HBA's
2579 * management interface is marked as blocked, all the user space access to
2580 * the HBA, whether they are from sysfs interface or libdfc interface will
2581 * all be blocked. The HBA is set to block the management interface when the
2582 * driver prepares the HBA interface for online or offline.
2583 **/
a6ababd2 2584static void
618a5230 2585lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
a6ababd2
AB		 2586{
2587 unsigned long iflag;
6e7288d9
JS		 2588 uint8_t actcmd = MBX_HEARTBEAT;
2589 unsigned long timeout;
2590
a6ababd2
AB		 2591 spin_lock_irqsave(&phba->hbalock, iflag);
2592 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
618a5230
JS		 2593 spin_unlock_irqrestore(&phba->hbalock, iflag);
2594 if (mbx_action == LPFC_MBX_NO_WAIT)
2595 return;
2596 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2597 spin_lock_irqsave(&phba->hbalock, iflag);
a183a15f 2598 if (phba->sli.mbox_active) {
6e7288d9 2599 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a183a15f
JS		 2600 /* Determine how long we might wait for the active mailbox
2601 * command to be gracefully completed by firmware.
2602 */
2603 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2604 phba->sli.mbox_active) * 1000) + jiffies;
2605 }
a6ababd2 2606 spin_unlock_irqrestore(&phba->hbalock, iflag);
a183a15f 2607
6e7288d9
JS		 2608 /* Wait for the outstnading mailbox command to complete */
2609 while (phba->sli.mbox_active) {
2610 /* Check active mailbox complete status every 2ms */
2611 msleep(2);
2612 if (time_after(jiffies, timeout)) {
2613 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2614 "2813 Mgmt IO is Blocked %x "
2615 "- mbox cmd %x still active\n",
2616 phba->sli.sli_flag, actcmd);
2617 break;
2618 }
2619 }
a6ababd2
AB		 2620}
2621
6b5151fd
JS		 2622/**
2623 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2624 * @phba: pointer to lpfc hba data structure.
2625 *
2626 * Allocate RPIs for all active remote nodes. This is needed whenever
2627 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2628 * is to fixup the temporary rpi assignments.
2629 **/
2630void
2631lpfc_sli4_node_prep(struct lpfc_hba *phba)
2632{
2633 struct lpfc_nodelist *ndlp, *next_ndlp;
2634 struct lpfc_vport **vports;
2635 int i;
2636
2637 if (phba->sli_rev != LPFC_SLI_REV4)
2638 return;
2639
2640 vports = lpfc_create_vport_work_array(phba);
2641 if (vports != NULL) {
2642 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2643 if (vports[i]->load_flag & FC_UNLOADING)
2644 continue;
2645
2646 list_for_each_entry_safe(ndlp, next_ndlp,
2647 &vports[i]->fc_nodes,
2648 nlp_listp) {
2649 if (NLP_CHK_NODE_ACT(ndlp))
2650 ndlp->nlp_rpi =
2651 lpfc_sli4_alloc_rpi(phba);
2652 }
2653 }
2654 }
2655 lpfc_destroy_vport_work_array(phba, vports);
2656}
2657
e59058c4 2658/**
3621a710 2659 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2660 * @phba: pointer to lpfc hba data structure.
2661 *
2662 * This routine initializes the HBA and brings a HBA online. During this
2663 * process, the management interface is blocked to prevent user space access
2664 * to the HBA interfering with the driver initialization.
2665 *
2666 * Return codes
2667 * 0 - successful
2668 * 1 - failed
2669 **/
dea3101e 2670int
2e0fef85 2671lpfc_online(struct lpfc_hba *phba)
dea3101e 2672{
372bd282 2673 struct lpfc_vport *vport;
549e55cd
JS		 2674 struct lpfc_vport **vports;
2675 int i;
16a3a208 2676 bool vpis_cleared = false;
2e0fef85 2677
dea3101e 2678 if (!phba)
2679 return 0;
372bd282 2680 vport = phba->pport;
dea3101e 2681
2e0fef85 2682 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2683 return 0;
2684
ed957684 2685 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2686 "0458 Bring Adapter online\n");
dea3101e 2687
618a5230 2688 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
46fa311e
JS		 2689
2690 if (!lpfc_sli_queue_setup(phba)) {
2691 lpfc_unblock_mgmt_io(phba);
dea3101e 2692 return 1;
46fa311e 2693 }
dea3101e 2694
da0436e9
JS		 2695 if (phba->sli_rev == LPFC_SLI_REV4) {
2696 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2697 lpfc_unblock_mgmt_io(phba);
2698 return 1;
2699 }
16a3a208
JS		 2700 spin_lock_irq(&phba->hbalock);
2701 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2702 vpis_cleared = true;
2703 spin_unlock_irq(&phba->hbalock);
da0436e9
JS		 2704 } else {
2705 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2706 lpfc_unblock_mgmt_io(phba);
2707 return 1;
2708 }
46fa311e 2709 }
dea3101e 2710
549e55cd
JS		 2711 vports = lpfc_create_vport_work_array(phba);
2712 if (vports != NULL)
da0436e9 2713 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2714 struct Scsi_Host *shost;
2715 shost = lpfc_shost_from_vport(vports[i]);
2716 spin_lock_irq(shost->host_lock);
2717 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2718 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2719 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
16a3a208 2720 if (phba->sli_rev == LPFC_SLI_REV4) {
1c6834a7 2721 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
16a3a208
JS		 2722 if ((vpis_cleared) &&
2723 (vports[i]->port_type !=
2724 LPFC_PHYSICAL_PORT))
2725 vports[i]->vpi = 0;
2726 }
549e55cd
JS		 2727 spin_unlock_irq(shost->host_lock);
2728 }
09372820 2729 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2730
46fa311e 2731 lpfc_unblock_mgmt_io(phba);
dea3101e 2732 return 0;
2733}
2734
e59058c4 2735/**
3621a710 2736 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2737 * @phba: pointer to lpfc hba data structure.
2738 *
2739 * This routine marks a HBA's management interface as not blocked. Once the
2740 * HBA's management interface is marked as not blocked, all the user space
2741 * access to the HBA, whether they are from sysfs interface or libdfc
2742 * interface will be allowed. The HBA is set to block the management interface
2743 * when the driver prepares the HBA interface for online or offline and then
2744 * set to unblock the management interface afterwards.
2745 **/
46fa311e
JS		 2746void
2747lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2748{
2749 unsigned long iflag;
2750
2e0fef85
JS		 2751 spin_lock_irqsave(&phba->hbalock, iflag);
2752 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2753 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2754}
2755
e59058c4 2756/**
3621a710 2757 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2758 * @phba: pointer to lpfc hba data structure.
2759 *
2760 * This routine is invoked to prepare a HBA to be brought offline. It performs
2761 * unregistration login to all the nodes on all vports and flushes the mailbox
2762 * queue to make it ready to be brought offline.
2763 **/
46fa311e 2764void
618a5230 2765lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
46fa311e 2766{
2e0fef85 2767 struct lpfc_vport *vport = phba->pport;
46fa311e 2768 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2769 struct lpfc_vport **vports;
72100cc4 2770 struct Scsi_Host *shost;
87af33fe 2771 int i;
dea3101e 2772
2e0fef85 2773 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2774 return;
dea3101e 2775
618a5230 2776 lpfc_block_mgmt_io(phba, mbx_action);
dea3101e 2777
2778 lpfc_linkdown(phba);
2779
87af33fe
JS		 2780 /* Issue an unreg_login to all nodes on all vports */
2781 vports = lpfc_create_vport_work_array(phba);
2782 if (vports != NULL) {
da0436e9 2783 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2784 if (vports[i]->load_flag & FC_UNLOADING)
2785 continue;
72100cc4
JS		 2786 shost = lpfc_shost_from_vport(vports[i]);
2787 spin_lock_irq(shost->host_lock);
c868595d 2788 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2789 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2790 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2791 spin_unlock_irq(shost->host_lock);
695a814e 2792
87af33fe
JS		 2793 shost = lpfc_shost_from_vport(vports[i]);
2794 list_for_each_entry_safe(ndlp, next_ndlp,
2795 &vports[i]->fc_nodes,
2796 nlp_listp) {
e47c9093
JS		 2797 if (!NLP_CHK_NODE_ACT(ndlp))
2798 continue;
87af33fe
JS		 2799 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2800 continue;
2801 if (ndlp->nlp_type & NLP_FABRIC) {
2802 lpfc_disc_state_machine(vports[i], ndlp,
2803 NULL, NLP_EVT_DEVICE_RECOVERY);
2804 lpfc_disc_state_machine(vports[i], ndlp,
2805 NULL, NLP_EVT_DEVICE_RM);
2806 }
2807 spin_lock_irq(shost->host_lock);
2808 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
401ee0c1 2809 spin_unlock_irq(shost->host_lock);
6b5151fd
JS		 2810 /*
2811 * Whenever an SLI4 port goes offline, free the
401ee0c1
JS		 2812 * RPI. Get a new RPI when the adapter port
2813 * comes back online.
6b5151fd
JS		 2814 */
2815 if (phba->sli_rev == LPFC_SLI_REV4)
2816 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
87af33fe
JS		 2817 lpfc_unreg_rpi(vports[i], ndlp);
2818 }
2819 }
2820 }
09372820 2821 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2822
618a5230 2823 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
46fa311e
JS		 2824}
2825
e59058c4 2826/**
3621a710 2827 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2828 * @phba: pointer to lpfc hba data structure.
2829 *
2830 * This routine actually brings a HBA offline. It stops all the timers
2831 * associated with the HBA, brings down the SLI layer, and eventually
2832 * marks the HBA as in offline state for the upper layer protocol.
2833 **/
46fa311e 2834void
2e0fef85 2835lpfc_offline(struct lpfc_hba *phba)
46fa311e 2836{
549e55cd
JS		 2837 struct Scsi_Host *shost;
2838 struct lpfc_vport **vports;
2839 int i;
46fa311e 2840
549e55cd 2841 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2842 return;
688a8863 2843
da0436e9
JS		 2844 /* stop port and all timers associated with this hba */
2845 lpfc_stop_port(phba);
51ef4c26
JS		 2846 vports = lpfc_create_vport_work_array(phba);
2847 if (vports != NULL)
da0436e9 2848 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2849 lpfc_stop_vport_timers(vports[i]);
09372820 2850 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2851 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2852 "0460 Bring Adapter offline\n");
dea3101e 2853 /* Bring down the SLI Layer and cleanup. The HBA is offline
2854 now. */
2855 lpfc_sli_hba_down(phba);
92d7f7b0 2856 spin_lock_irq(&phba->hbalock);
7054a606 2857 phba->work_ha = 0;
92d7f7b0 2858 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2859 vports = lpfc_create_vport_work_array(phba);
2860 if (vports != NULL)
da0436e9 2861 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2862 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2863 spin_lock_irq(shost->host_lock);
2864 vports[i]->work_port_events = 0;
2865 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2866 spin_unlock_irq(shost->host_lock);
2867 }
09372820 2868 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2869}
2870
e59058c4 2871/**
3621a710 2872 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2873 * @phba: pointer to lpfc hba data structure.
2874 *
2875 * This routine is to free all the SCSI buffers and IOCBs from the driver
2876 * list back to kernel. It is called from lpfc_pci_remove_one to free
2877 * the internal resources before the device is removed from the system.
e59058c4 2878 **/
8a9d2e80 2879static void
2e0fef85 2880lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2881{
2882 struct lpfc_scsi_buf *sb, *sb_next;
2883 struct lpfc_iocbq *io, *io_next;
2884
2e0fef85 2885 spin_lock_irq(&phba->hbalock);
a40fc5f0 2886
dea3101e 2887 /* Release all the lpfc_scsi_bufs maintained by this host. */
a40fc5f0
JS		 2888
2889 spin_lock(&phba->scsi_buf_list_put_lock);
2890 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2891 list) {
dea3101e 2892 list_del(&sb->list);
2893 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2894 sb->dma_handle);
dea3101e 2895 kfree(sb);
2896 phba->total_scsi_bufs--;
2897 }
a40fc5f0
JS		 2898 spin_unlock(&phba->scsi_buf_list_put_lock);
2899
2900 spin_lock(&phba->scsi_buf_list_get_lock);
2901 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
2902 list) {
dea3101e 2903 list_del(&sb->list);
2904 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2905 sb->dma_handle);
dea3101e 2906 kfree(sb);
2907 phba->total_scsi_bufs--;
2908 }
a40fc5f0 2909 spin_unlock(&phba->scsi_buf_list_get_lock);
dea3101e 2910
2911 /* Release all the lpfc_iocbq entries maintained by this host. */
2912 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2913 list_del(&io->list);
2914 kfree(io);
2915 phba->total_iocbq_bufs--;
2916 }
6d368e53 2917
2e0fef85 2918 spin_unlock_irq(&phba->hbalock);
8a9d2e80
JS		 2919}
2920
2921/**
2922 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2923 * @phba: pointer to lpfc hba data structure.
2924 *
2925 * This routine first calculates the sizes of the current els and allocated
2926 * scsi sgl lists, and then goes through all sgls to updates the physical
2927 * XRIs assigned due to port function reset. During port initialization, the
2928 * current els and allocated scsi sgl lists are 0s.
2929 *
2930 * Return codes
2931 * 0 - successful (for now, it always returns 0)
2932 **/
2933int
2934lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2935{
2936 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2937 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2938 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2939 LIST_HEAD(els_sgl_list);
2940 LIST_HEAD(scsi_sgl_list);
2941 int rc;
2942
2943 /*
2944 * update on pci function's els xri-sgl list
2945 */
2946 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2947 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2948 /* els xri-sgl expanded */
2949 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2950 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2951 "3157 ELS xri-sgl count increased from "
2952 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2953 els_xri_cnt);
2954 /* allocate the additional els sgls */
2955 for (i = 0; i < xri_cnt; i++) {
2956 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2957 GFP_KERNEL);
2958 if (sglq_entry == NULL) {
2959 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2960 "2562 Failure to allocate an "
2961 "ELS sgl entry:%d\n", i);
2962 rc = -ENOMEM;
2963 goto out_free_mem;
2964 }
2965 sglq_entry->buff_type = GEN_BUFF_TYPE;
2966 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2967 &sglq_entry->phys);
2968 if (sglq_entry->virt == NULL) {
2969 kfree(sglq_entry);
2970 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2971 "2563 Failure to allocate an "
2972 "ELS mbuf:%d\n", i);
2973 rc = -ENOMEM;
2974 goto out_free_mem;
2975 }
2976 sglq_entry->sgl = sglq_entry->virt;
2977 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2978 sglq_entry->state = SGL_FREED;
2979 list_add_tail(&sglq_entry->list, &els_sgl_list);
2980 }
38c20673 2981 spin_lock_irq(&phba->hbalock);
8a9d2e80 2982 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
38c20673 2983 spin_unlock_irq(&phba->hbalock);
8a9d2e80
JS		 2984 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2985 /* els xri-sgl shrinked */
2986 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2987 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2988 "3158 ELS xri-sgl count decreased from "
2989 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2990 els_xri_cnt);
2991 spin_lock_irq(&phba->hbalock);
2992 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2993 spin_unlock_irq(&phba->hbalock);
2994 /* release extra els sgls from list */
2995 for (i = 0; i < xri_cnt; i++) {
2996 list_remove_head(&els_sgl_list,
2997 sglq_entry, struct lpfc_sglq, list);
2998 if (sglq_entry) {
2999 lpfc_mbuf_free(phba, sglq_entry->virt,
3000 sglq_entry->phys);
3001 kfree(sglq_entry);
3002 }
3003 }
3004 spin_lock_irq(&phba->hbalock);
3005 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3006 spin_unlock_irq(&phba->hbalock);
3007 } else
3008 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3009 "3163 ELS xri-sgl count unchanged: %d\n",
3010 els_xri_cnt);
3011 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3012
3013 /* update xris to els sgls on the list */
3014 sglq_entry = NULL;
3015 sglq_entry_next = NULL;
3016 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3017 &phba->sli4_hba.lpfc_sgl_list, list) {
3018 lxri = lpfc_sli4_next_xritag(phba);
3019 if (lxri == NO_XRI) {
3020 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3021 "2400 Failed to allocate xri for "
3022 "ELS sgl\n");
3023 rc = -ENOMEM;
3024 goto out_free_mem;
3025 }
3026 sglq_entry->sli4_lxritag = lxri;
3027 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3028 }
3029
3030 /*
3031 * update on pci function's allocated scsi xri-sgl list
3032 */
3033 phba->total_scsi_bufs = 0;
3034
3035 /* maximum number of xris available for scsi buffers */
3036 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3037 els_xri_cnt;
3038
3039 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3040 "2401 Current allocated SCSI xri-sgl count:%d, "
3041 "maximum SCSI xri count:%d\n",
3042 phba->sli4_hba.scsi_xri_cnt,
3043 phba->sli4_hba.scsi_xri_max);
3044
a40fc5f0 3045 spin_lock_irq(&phba->scsi_buf_list_get_lock);
164cecd1 3046 spin_lock(&phba->scsi_buf_list_put_lock);
a40fc5f0
JS		 3047 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3048 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
164cecd1 3049 spin_unlock(&phba->scsi_buf_list_put_lock);
a40fc5f0 3050 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80
JS		 3051
3052 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3053 /* max scsi xri shrinked below the allocated scsi buffers */
3054 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3055 phba->sli4_hba.scsi_xri_max;
3056 /* release the extra allocated scsi buffers */
3057 for (i = 0; i < scsi_xri_cnt; i++) {
3058 list_remove_head(&scsi_sgl_list, psb,
3059 struct lpfc_scsi_buf, list);
3060 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3061 psb->dma_handle);
3062 kfree(psb);
3063 }
a40fc5f0 3064 spin_lock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80 3065 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
a40fc5f0 3066 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80
JS		 3067 }
3068
3069 /* update xris associated to remaining allocated scsi buffers */
3070 psb = NULL;
3071 psb_next = NULL;
3072 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3073 lxri = lpfc_sli4_next_xritag(phba);
3074 if (lxri == NO_XRI) {
3075 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3076 "2560 Failed to allocate xri for "
3077 "scsi buffer\n");
3078 rc = -ENOMEM;
3079 goto out_free_mem;
3080 }
3081 psb->cur_iocbq.sli4_lxritag = lxri;
3082 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3083 }
a40fc5f0 3084 spin_lock_irq(&phba->scsi_buf_list_get_lock);
164cecd1 3085 spin_lock(&phba->scsi_buf_list_put_lock);
a40fc5f0
JS		 3086 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3087 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
164cecd1 3088 spin_unlock(&phba->scsi_buf_list_put_lock);
a40fc5f0 3089 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
8a9d2e80 3090
dea3101e 3091 return 0;
8a9d2e80
JS		 3092
3093out_free_mem:
3094 lpfc_free_els_sgl_list(phba);
3095 lpfc_scsi_free(phba);
3096 return rc;
dea3101e 3097}
3098
e59058c4 3099/**
3621a710 3100 * lpfc_create_port - Create an FC port
e59058c4
JS		 3101 * @phba: pointer to lpfc hba data structure.
3102 * @instance: a unique integer ID to this FC port.
3103 * @dev: pointer to the device data structure.
3104 *
3105 * This routine creates a FC port for the upper layer protocol. The FC port
3106 * can be created on top of either a physical port or a virtual port provided
3107 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3108 * and associates the FC port created before adding the shost into the SCSI
3109 * layer.
3110 *
3111 * Return codes
3112 * @vport - pointer to the virtual N_Port data structure.
3113 * NULL - port create failed.
3114 **/
2e0fef85 3115struct lpfc_vport *
3de2a653 3116lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 3117{
2e0fef85
JS		 3118 struct lpfc_vport *vport;
3119 struct Scsi_Host *shost;
3120 int error = 0;
47a8617c 3121
3de2a653
JS		 3122 if (dev != &phba->pcidev->dev)
3123 shost = scsi_host_alloc(&lpfc_vport_template,
3124 sizeof(struct lpfc_vport));
3125 else
3126 shost = scsi_host_alloc(&lpfc_template,
3127 sizeof(struct lpfc_vport));
2e0fef85
JS		 3128 if (!shost)
3129 goto out;
47a8617c 3130
2e0fef85
JS		 3131 vport = (struct lpfc_vport *) shost->hostdata;
3132 vport->phba = phba;
2e0fef85 3133 vport->load_flag |= FC_LOADING;
92d7f7b0 3134 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 3135 vport->fc_rscn_flush = 0;
47a8617c 3136
3de2a653 3137 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 3138 shost->unique_id = instance;
3139 shost->max_id = LPFC_MAX_TARGET;
3de2a653 3140 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 3141 shost->this_id = -1;
3142 shost->max_cmd_len = 16;
da0436e9 3143 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 3144 shost->dma_boundary =
cb5172ea 3145 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 3146 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3147 }
81301a9b 3148
47a8617c 3149 /*
2e0fef85
JS		 3150 * Set initial can_queue value since 0 is no longer supported and
3151 * scsi_add_host will fail. This will be adjusted later based on the
3152 * max xri value determined in hba setup.
47a8617c 3153 */
2e0fef85 3154 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 3155 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 3156 shost->transportt = lpfc_vport_transport_template;
3157 vport->port_type = LPFC_NPIV_PORT;
3158 } else {
3159 shost->transportt = lpfc_transport_template;
3160 vport->port_type = LPFC_PHYSICAL_PORT;
3161 }
47a8617c 3162
2e0fef85
JS		 3163 /* Initialize all internally managed lists. */
3164 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 3165 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 3166 spin_lock_init(&vport->work_port_lock);
47a8617c 3167
2e0fef85
JS		 3168 init_timer(&vport->fc_disctmo);
3169 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 3170 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 3171
2e0fef85
JS		 3172 init_timer(&vport->fc_fdmitmo);
3173 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 3174 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 3175
2e0fef85
JS		 3176 init_timer(&vport->els_tmofunc);
3177 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 3178 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 3179
3180 init_timer(&vport->delayed_disc_tmo);
3181 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3182 vport->delayed_disc_tmo.data = (unsigned long)vport;
3183
d139b9bd 3184 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 3185 if (error)
3186 goto out_put_shost;
47a8617c 3187
549e55cd 3188 spin_lock_irq(&phba->hbalock);
2e0fef85 3189 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 3190 spin_unlock_irq(&phba->hbalock);
2e0fef85 3191 return vport;
47a8617c 3192
2e0fef85
JS		 3193out_put_shost:
3194 scsi_host_put(shost);
3195out:
3196 return NULL;
47a8617c
JS		 3197}
3198
e59058c4 3199/**
3621a710 3200 * destroy_port - destroy an FC port
e59058c4
JS		 3201 * @vport: pointer to an lpfc virtual N_Port data structure.
3202 *
3203 * This routine destroys a FC port from the upper layer protocol. All the
3204 * resources associated with the port are released.
3205 **/
2e0fef85
JS		 3206void
3207destroy_port(struct lpfc_vport *vport)
47a8617c 3208{
92d7f7b0
JS		 3209 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3210 struct lpfc_hba *phba = vport->phba;
47a8617c 3211
858c9f6c 3212 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 3213 fc_remove_host(shost);
3214 scsi_remove_host(shost);
47a8617c 3215
92d7f7b0
JS		 3216 spin_lock_irq(&phba->hbalock);
3217 list_del_init(&vport->listentry);
3218 spin_unlock_irq(&phba->hbalock);
47a8617c 3219
92d7f7b0 3220 lpfc_cleanup(vport);
47a8617c 3221 return;
47a8617c
JS		 3222}
3223
e59058c4 3224/**
3621a710 3225 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 3226 *
3227 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3228 * uses the kernel idr facility to perform the task.
3229 *
3230 * Return codes:
3231 * instance - a unique integer ID allocated as the new instance.
3232 * -1 - lpfc get instance failed.
3233 **/
92d7f7b0
JS		 3234int
3235lpfc_get_instance(void)
3236{
ab516036
TH		 3237 int ret;
3238
3239 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3240 return ret < 0 ? -1 : ret;
47a8617c
JS		 3241}
3242
e59058c4 3243/**
3621a710 3244 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 3245 * @shost: pointer to SCSI host data structure.
3246 * @time: elapsed time of the scan in jiffies.
3247 *
3248 * This routine is called by the SCSI layer with a SCSI host to determine
3249 * whether the scan host is finished.
3250 *
3251 * Note: there is no scan_start function as adapter initialization will have
3252 * asynchronously kicked off the link initialization.
3253 *
3254 * Return codes
3255 * 0 - SCSI host scan is not over yet.
3256 * 1 - SCSI host scan is over.
3257 **/
47a8617c
JS		 3258int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3259{
2e0fef85
JS		 3260 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3261 struct lpfc_hba *phba = vport->phba;
858c9f6c 3262 int stat = 0;
47a8617c 3263
858c9f6c
JS		 3264 spin_lock_irq(shost->host_lock);
3265
51ef4c26 3266 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 3267 stat = 1;
3268 goto finished;
3269 }
256ec0d0 3270 if (time >= msecs_to_jiffies(30 * 1000)) {
2e0fef85 3271 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3272 "0461 Scanning longer than 30 "
3273 "seconds. Continuing initialization\n");
858c9f6c 3274 stat = 1;
47a8617c 3275 goto finished;
2e0fef85 3276 }
256ec0d0
JS		 3277 if (time >= msecs_to_jiffies(15 * 1000) &&
3278 phba->link_state <= LPFC_LINK_DOWN) {
2e0fef85 3279 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3280 "0465 Link down longer than 15 "
3281 "seconds. Continuing initialization\n");
858c9f6c 3282 stat = 1;
47a8617c 3283 goto finished;
2e0fef85 3284 }
47a8617c 3285
2e0fef85 3286 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 3287 goto finished;
2e0fef85 3288 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 3289 goto finished;
256ec0d0 3290 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
858c9f6c 3291 goto finished;
2e0fef85 3292 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 3293 goto finished;
3294
3295 stat = 1;
47a8617c
JS		 3296
3297finished:
858c9f6c
JS		 3298 spin_unlock_irq(shost->host_lock);
3299 return stat;
92d7f7b0 3300}
47a8617c 3301
e59058c4 3302/**
3621a710 3303 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 3304 * @shost: pointer to SCSI host data structure.
3305 *
3306 * This routine initializes a given SCSI host attributes on a FC port. The
3307 * SCSI host can be either on top of a physical port or a virtual port.
3308 **/
92d7f7b0
JS		 3309void lpfc_host_attrib_init(struct Scsi_Host *shost)
3310{
3311 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3312 struct lpfc_hba *phba = vport->phba;
47a8617c 3313 /*
2e0fef85 3314 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 3315 */
3316
2e0fef85
JS		 3317 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3318 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 3319 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3320
3321 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 3322 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 3323 fc_host_supported_fc4s(shost)[2] = 1;
3324 fc_host_supported_fc4s(shost)[7] = 1;
3325
92d7f7b0
JS		 3326 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3327 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 3328
3329 fc_host_supported_speeds(shost) = 0;
88a2cfbb
JS		 3330 if (phba->lmt & LMT_16Gb)
3331 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 3332 if (phba->lmt & LMT_10Gb)
3333 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 3334 if (phba->lmt & LMT_8Gb)
3335 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 3336 if (phba->lmt & LMT_4Gb)
3337 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3338 if (phba->lmt & LMT_2Gb)
3339 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3340 if (phba->lmt & LMT_1Gb)
3341 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3342
3343 fc_host_maxframe_size(shost) =
2e0fef85
JS		 3344 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3345 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 3346
0af5d708
MC		 3347 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3348
47a8617c
JS		 3349 /* This value is also unchanging */
3350 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 3351 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 3352 fc_host_active_fc4s(shost)[2] = 1;
3353 fc_host_active_fc4s(shost)[7] = 1;
3354
92d7f7b0 3355 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 3356 spin_lock_irq(shost->host_lock);
51ef4c26 3357 vport->load_flag &= ~FC_LOADING;
47a8617c 3358 spin_unlock_irq(shost->host_lock);
47a8617c 3359}
dea3101e 3360
e59058c4 3361/**
da0436e9 3362 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 3363 * @phba: pointer to lpfc hba data structure.
3364 *
da0436e9
JS		 3365 * This routine is invoked to stop an SLI3 device port, it stops the device
3366 * from generating interrupts and stops the device driver's timers for the
3367 * device.
e59058c4 3368 **/
da0436e9
JS		 3369static void
3370lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 3371{
da0436e9
JS		 3372 /* Clear all interrupt enable conditions */
3373 writel(0, phba->HCregaddr);
3374 readl(phba->HCregaddr); /* flush */
3375 /* Clear all pending interrupts */
3376 writel(0xffffffff, phba->HAregaddr);
3377 readl(phba->HAregaddr); /* flush */
db2378e0 3378
da0436e9
JS		 3379 /* Reset some HBA SLI setup states */
3380 lpfc_stop_hba_timers(phba);
3381 phba->pport->work_port_events = 0;
3382}
db2378e0 3383
da0436e9
JS		 3384/**
3385 * lpfc_stop_port_s4 - Stop SLI4 device port
3386 * @phba: pointer to lpfc hba data structure.
3387 *
3388 * This routine is invoked to stop an SLI4 device port, it stops the device
3389 * from generating interrupts and stops the device driver's timers for the
3390 * device.
3391 **/
3392static void
3393lpfc_stop_port_s4(struct lpfc_hba *phba)
3394{
3395 /* Reset some HBA SLI4 setup states */
3396 lpfc_stop_hba_timers(phba);
3397 phba->pport->work_port_events = 0;
3398 phba->sli4_hba.intr_enable = 0;
da0436e9 3399}
9399627f 3400
da0436e9
JS		 3401/**
3402 * lpfc_stop_port - Wrapper function for stopping hba port
3403 * @phba: Pointer to HBA context object.
3404 *
3405 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3406 * the API jump table function pointer from the lpfc_hba struct.
3407 **/
3408void
3409lpfc_stop_port(struct lpfc_hba *phba)
3410{
3411 phba->lpfc_stop_port(phba);
3412}
db2378e0 3413
ecfd03c6
JS		 3414/**
3415 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3416 * @phba: Pointer to hba for which this call is being executed.
3417 *
3418 * This routine starts the timer waiting for the FCF rediscovery to complete.
3419 **/
3420void
3421lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3422{
3423 unsigned long fcf_redisc_wait_tmo =
3424 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3425 /* Start fcf rediscovery wait period timer */
3426 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3427 spin_lock_irq(&phba->hbalock);
3428 /* Allow action to new fcf asynchronous event */
3429 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3430 /* Mark the FCF rediscovery pending state */
3431 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3432 spin_unlock_irq(&phba->hbalock);
3433}
3434
3435/**
3436 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3437 * @ptr: Map to lpfc_hba data structure pointer.
3438 *
3439 * This routine is invoked when waiting for FCF table rediscover has been
3440 * timed out. If new FCF record(s) has (have) been discovered during the
3441 * wait period, a new FCF event shall be added to the FCOE async event
3442 * list, and then worker thread shall be waked up for processing from the
3443 * worker thread context.
3444 **/
3445void
3446lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3447{
3448 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3449
3450 /* Don't send FCF rediscovery event if timer cancelled */
3451 spin_lock_irq(&phba->hbalock);
3452 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3453 spin_unlock_irq(&phba->hbalock);
3454 return;
3455 }
3456 /* Clear FCF rediscovery timer pending flag */
3457 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3458 /* FCF rediscovery event to worker thread */
3459 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3460 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3461 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3462 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3463 /* wake up worker thread */
3464 lpfc_worker_wake_up(phba);
3465}
3466
e59058c4 3467/**
da0436e9 3468 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3469 * @phba: pointer to lpfc hba data structure.
da0436e9 3470 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3471 *
da0436e9
JS		 3472 * This routine is to parse the SLI4 link-attention link fault code and
3473 * translate it into the base driver's read link attention mailbox command
3474 * status.
3475 *
3476 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3477 **/
da0436e9
JS		 3478static uint16_t
3479lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3480 struct lpfc_acqe_link *acqe_link)
db2378e0 3481{
da0436e9 3482 uint16_t latt_fault;
9399627f 3483
da0436e9
JS		 3484 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3485 case LPFC_ASYNC_LINK_FAULT_NONE:
3486 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3487 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3488 latt_fault = 0;
3489 break;
3490 default:
3491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3492 "0398 Invalid link fault code: x%x\n",
3493 bf_get(lpfc_acqe_link_fault, acqe_link));
3494 latt_fault = MBXERR_ERROR;
3495 break;
3496 }
3497 return latt_fault;
db2378e0
JS		 3498}
3499
5b75da2f 3500/**
da0436e9 3501 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3502 * @phba: pointer to lpfc hba data structure.
da0436e9 3503 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3504 *
da0436e9
JS		 3505 * This routine is to parse the SLI4 link attention type and translate it
3506 * into the base driver's link attention type coding.
5b75da2f 3507 *
da0436e9
JS		 3508 * Return: Link attention type in terms of base driver's coding.
3509 **/
3510static uint8_t
3511lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3512 struct lpfc_acqe_link *acqe_link)
5b75da2f 3513{
da0436e9 3514 uint8_t att_type;
5b75da2f 3515
da0436e9
JS		 3516 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3517 case LPFC_ASYNC_LINK_STATUS_DOWN:
3518 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3519 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3520 break;
3521 case LPFC_ASYNC_LINK_STATUS_UP:
3522 /* Ignore physical link up events - wait for logical link up */
76a95d75 3523 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3524 break;
3525 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3526 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3527 break;
3528 default:
3529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3530 "0399 Invalid link attention type: x%x\n",
3531 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3532 att_type = LPFC_ATT_RESERVED;
da0436e9 3533 break;
5b75da2f 3534 }
da0436e9 3535 return att_type;
5b75da2f
JS		 3536}
3537
3538/**
da0436e9 3539 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3540 * @phba: pointer to lpfc hba data structure.
da0436e9 3541 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3542 *
da0436e9
JS		 3543 * This routine is to parse the SLI4 link-attention link speed and translate
3544 * it into the base driver's link-attention link speed coding.
3545 *
3546 * Return: Link-attention link speed in terms of base driver's coding.
3547 **/
3548static uint8_t
3549lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3550 struct lpfc_acqe_link *acqe_link)
5b75da2f 3551{
da0436e9
JS		 3552 uint8_t link_speed;
3553
3554 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3555 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3556 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3557 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3558 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3559 break;
3560 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3561 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3562 break;
3563 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3564 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3565 break;
3566 default:
3567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3568 "0483 Invalid link-attention link speed: x%x\n",
3569 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3570 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3571 break;
3572 }
3573 return link_speed;
3574}
3575
8b68cd52
JS		 3576/**
3577 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3578 * @phba: pointer to lpfc hba data structure.
3579 *
3580 * This routine is to get an SLI3 FC port's link speed in Mbps.
3581 *
3582 * Return: link speed in terms of Mbps.
3583 **/
3584uint32_t
3585lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3586{
3587 uint32_t link_speed;
3588
3589 if (!lpfc_is_link_up(phba))
3590 return 0;
3591
3592 switch (phba->fc_linkspeed) {
3593 case LPFC_LINK_SPEED_1GHZ:
3594 link_speed = 1000;
3595 break;
3596 case LPFC_LINK_SPEED_2GHZ:
3597 link_speed = 2000;
3598 break;
3599 case LPFC_LINK_SPEED_4GHZ:
3600 link_speed = 4000;
3601 break;
3602 case LPFC_LINK_SPEED_8GHZ:
3603 link_speed = 8000;
3604 break;
3605 case LPFC_LINK_SPEED_10GHZ:
3606 link_speed = 10000;
3607 break;
3608 case LPFC_LINK_SPEED_16GHZ:
3609 link_speed = 16000;
3610 break;
3611 default:
3612 link_speed = 0;
3613 }
3614 return link_speed;
3615}
3616
3617/**
3618 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3619 * @phba: pointer to lpfc hba data structure.
3620 * @evt_code: asynchronous event code.
3621 * @speed_code: asynchronous event link speed code.
3622 *
3623 * This routine is to parse the giving SLI4 async event link speed code into
3624 * value of Mbps for the link speed.
3625 *
3626 * Return: link speed in terms of Mbps.
3627 **/
3628static uint32_t
3629lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3630 uint8_t speed_code)
3631{
3632 uint32_t port_speed;
3633
3634 switch (evt_code) {
3635 case LPFC_TRAILER_CODE_LINK:
3636 switch (speed_code) {
3637 case LPFC_EVT_CODE_LINK_NO_LINK:
3638 port_speed = 0;
3639 break;
3640 case LPFC_EVT_CODE_LINK_10_MBIT:
3641 port_speed = 10;
3642 break;
3643 case LPFC_EVT_CODE_LINK_100_MBIT:
3644 port_speed = 100;
3645 break;
3646 case LPFC_EVT_CODE_LINK_1_GBIT:
3647 port_speed = 1000;
3648 break;
3649 case LPFC_EVT_CODE_LINK_10_GBIT:
3650 port_speed = 10000;
3651 break;
3652 default:
3653 port_speed = 0;
3654 }
3655 break;
3656 case LPFC_TRAILER_CODE_FC:
3657 switch (speed_code) {
3658 case LPFC_EVT_CODE_FC_NO_LINK:
3659 port_speed = 0;
3660 break;
3661 case LPFC_EVT_CODE_FC_1_GBAUD:
3662 port_speed = 1000;
3663 break;
3664 case LPFC_EVT_CODE_FC_2_GBAUD:
3665 port_speed = 2000;
3666 break;
3667 case LPFC_EVT_CODE_FC_4_GBAUD:
3668 port_speed = 4000;
3669 break;
3670 case LPFC_EVT_CODE_FC_8_GBAUD:
3671 port_speed = 8000;
3672 break;
3673 case LPFC_EVT_CODE_FC_10_GBAUD:
3674 port_speed = 10000;
3675 break;
3676 case LPFC_EVT_CODE_FC_16_GBAUD:
3677 port_speed = 16000;
3678 break;
3679 default:
3680 port_speed = 0;
3681 }
3682 break;
3683 default:
3684 port_speed = 0;
3685 }
3686 return port_speed;
3687}
3688
da0436e9 3689/**
70f3c073 3690 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3691 * @phba: pointer to lpfc hba data structure.
3692 * @acqe_link: pointer to the async link completion queue entry.
3693 *
70f3c073 3694 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3695 **/
3696static void
3697lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3698 struct lpfc_acqe_link *acqe_link)
3699{
3700 struct lpfc_dmabuf *mp;
3701 LPFC_MBOXQ_t *pmb;
3702 MAILBOX_t *mb;
76a95d75 3703 struct lpfc_mbx_read_top *la;
da0436e9 3704 uint8_t att_type;
76a95d75 3705 int rc;
da0436e9
JS		 3706
3707 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3708 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3709 return;
32b9793f 3710 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3711 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3712 if (!pmb) {
3713 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3714 "0395 The mboxq allocation failed\n");
3715 return;
3716 }
3717 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3718 if (!mp) {
3719 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3720 "0396 The lpfc_dmabuf allocation failed\n");
3721 goto out_free_pmb;
3722 }
3723 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3724 if (!mp->virt) {
3725 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3726 "0397 The mbuf allocation failed\n");
3727 goto out_free_dmabuf;
3728 }
3729
3730 /* Cleanup any outstanding ELS commands */
3731 lpfc_els_flush_all_cmd(phba);
3732
3733 /* Block ELS IOCBs until we have done process link event */
3734 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3735
3736 /* Update link event statistics */
3737 phba->sli.slistat.link_event++;
3738
76a95d75
JS		 3739 /* Create lpfc_handle_latt mailbox command from link ACQE */
3740 lpfc_read_topology(phba, pmb, mp);
3741 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3742 pmb->vport = phba->pport;
3743
da0436e9
JS		 3744 /* Keep the link status for extra SLI4 state machine reference */
3745 phba->sli4_hba.link_state.speed =
8b68cd52
JS		 3746 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3747 bf_get(lpfc_acqe_link_speed, acqe_link));
da0436e9
JS		 3748 phba->sli4_hba.link_state.duplex =
3749 bf_get(lpfc_acqe_link_duplex, acqe_link);
3750 phba->sli4_hba.link_state.status =
3751 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3752 phba->sli4_hba.link_state.type =
3753 bf_get(lpfc_acqe_link_type, acqe_link);
3754 phba->sli4_hba.link_state.number =
3755 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3756 phba->sli4_hba.link_state.fault =
3757 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3758 phba->sli4_hba.link_state.logical_speed =
8b68cd52
JS		 3759 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3760
70f3c073 3761 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3762 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3763 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3764 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3765 phba->sli4_hba.link_state.speed,
3766 phba->sli4_hba.link_state.topology,
3767 phba->sli4_hba.link_state.status,
3768 phba->sli4_hba.link_state.type,
3769 phba->sli4_hba.link_state.number,
8b68cd52 3770 phba->sli4_hba.link_state.logical_speed,
70f3c073 3771 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3772 /*
3773 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3774 * topology info. Note: Optional for non FC-AL ports.
3775 */
3776 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3777 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3778 if (rc == MBX_NOT_FINISHED)
3779 goto out_free_dmabuf;
3780 return;
3781 }
3782 /*
3783 * For FCoE Mode: fill in all the topology information we need and call
3784 * the READ_TOPOLOGY completion routine to continue without actually
3785 * sending the READ_TOPOLOGY mailbox command to the port.
3786 */
3787 /* Parse and translate status field */
3788 mb = &pmb->u.mb;
3789 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3790
3791 /* Parse and translate link attention fields */
3792 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3793 la->eventTag = acqe_link->event_tag;
3794 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3795 bf_set(lpfc_mbx_read_top_link_spd, la,
3796 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3797
3798 /* Fake the the following irrelvant fields */
3799 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3800 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3801 bf_set(lpfc_mbx_read_top_il, la, 0);
3802 bf_set(lpfc_mbx_read_top_pb, la, 0);
3803 bf_set(lpfc_mbx_read_top_fa, la, 0);
3804 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3805
3806 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3807 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3808
5b75da2f 3809 return;
da0436e9
JS		 3810
3811out_free_dmabuf:
3812 kfree(mp);
3813out_free_pmb:
3814 mempool_free(pmb, phba->mbox_mem_pool);
3815}
3816
70f3c073
JS		 3817/**
3818 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3819 * @phba: pointer to lpfc hba data structure.
3820 * @acqe_fc: pointer to the async fc completion queue entry.
3821 *
3822 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3823 * that the event was received and then issue a read_topology mailbox command so
3824 * that the rest of the driver will treat it the same as SLI3.
3825 **/
3826static void
3827lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3828{
3829 struct lpfc_dmabuf *mp;
3830 LPFC_MBOXQ_t *pmb;
3831 int rc;
3832
3833 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3834 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3835 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3836 "2895 Non FC link Event detected.(%d)\n",
3837 bf_get(lpfc_trailer_type, acqe_fc));
3838 return;
3839 }
3840 /* Keep the link status for extra SLI4 state machine reference */
3841 phba->sli4_hba.link_state.speed =
8b68cd52
JS		 3842 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3843 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
70f3c073
JS		 3844 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3845 phba->sli4_hba.link_state.topology =
3846 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3847 phba->sli4_hba.link_state.status =
3848 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3849 phba->sli4_hba.link_state.type =
3850 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3851 phba->sli4_hba.link_state.number =
3852 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3853 phba->sli4_hba.link_state.fault =
3854 bf_get(lpfc_acqe_link_fault, acqe_fc);
3855 phba->sli4_hba.link_state.logical_speed =
8b68cd52 3856 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
70f3c073
JS		 3857 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3858 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3859 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3860 "%dMbps Fault:%d\n",
3861 phba->sli4_hba.link_state.speed,
3862 phba->sli4_hba.link_state.topology,
3863 phba->sli4_hba.link_state.status,
3864 phba->sli4_hba.link_state.type,
3865 phba->sli4_hba.link_state.number,
8b68cd52 3866 phba->sli4_hba.link_state.logical_speed,
70f3c073
JS		 3867 phba->sli4_hba.link_state.fault);
3868 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3869 if (!pmb) {
3870 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3871 "2897 The mboxq allocation failed\n");
3872 return;
3873 }
3874 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3875 if (!mp) {
3876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3877 "2898 The lpfc_dmabuf allocation failed\n");
3878 goto out_free_pmb;
3879 }
3880 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3881 if (!mp->virt) {
3882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3883 "2899 The mbuf allocation failed\n");
3884 goto out_free_dmabuf;
3885 }
3886
3887 /* Cleanup any outstanding ELS commands */
3888 lpfc_els_flush_all_cmd(phba);
3889
3890 /* Block ELS IOCBs until we have done process link event */
3891 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3892
3893 /* Update link event statistics */
3894 phba->sli.slistat.link_event++;
3895
3896 /* Create lpfc_handle_latt mailbox command from link ACQE */
3897 lpfc_read_topology(phba, pmb, mp);
3898 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3899 pmb->vport = phba->pport;
3900
3901 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3902 if (rc == MBX_NOT_FINISHED)
3903 goto out_free_dmabuf;
3904 return;
3905
3906out_free_dmabuf:
3907 kfree(mp);
3908out_free_pmb:
3909 mempool_free(pmb, phba->mbox_mem_pool);
3910}
3911
3912/**
3913 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3914 * @phba: pointer to lpfc hba data structure.
3915 * @acqe_fc: pointer to the async SLI completion queue entry.
3916 *
3917 * This routine is to handle the SLI4 asynchronous SLI events.
3918 **/
3919static void
3920lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3921{
4b8bae08 3922 char port_name;
8c1312e1 3923 char message[128];
4b8bae08
JS		 3924 uint8_t status;
3925 struct lpfc_acqe_misconfigured_event *misconfigured;
3926
3927 /* special case misconfigured event as it contains data for all ports */
3928 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3929 LPFC_SLI_INTF_IF_TYPE_2) ||
3930 (bf_get(lpfc_trailer_type, acqe_sli) !=
3931 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3932 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3933 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3934 "x%08x SLI Event Type:%d\n",
3935 acqe_sli->event_data1, acqe_sli->event_data2,
3936 bf_get(lpfc_trailer_type, acqe_sli));
3937 return;
3938 }
3939
3940 port_name = phba->Port[0];
3941 if (port_name == 0x00)
3942 port_name = '?'; /* get port name is empty */
3943
3944 misconfigured = (struct lpfc_acqe_misconfigured_event *)
3945 &acqe_sli->event_data1;
3946
3947 /* fetch the status for this port */
3948 switch (phba->sli4_hba.lnk_info.lnk_no) {
3949 case LPFC_LINK_NUMBER_0:
3950 status = bf_get(lpfc_sli_misconfigured_port0,
3951 &misconfigured->theEvent);
3952 break;
3953 case LPFC_LINK_NUMBER_1:
3954 status = bf_get(lpfc_sli_misconfigured_port1,
3955 &misconfigured->theEvent);
3956 break;
3957 case LPFC_LINK_NUMBER_2:
3958 status = bf_get(lpfc_sli_misconfigured_port2,
3959 &misconfigured->theEvent);
3960 break;
3961 case LPFC_LINK_NUMBER_3:
3962 status = bf_get(lpfc_sli_misconfigured_port3,
3963 &misconfigured->theEvent);
3964 break;
3965 default:
3966 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3967 break;
3968 }
3969
3970 switch (status) {
3971 case LPFC_SLI_EVENT_STATUS_VALID:
3972 return; /* no message if the sfp is okay */
3973 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
292098be
JS		 3974 sprintf(message, "Optics faulted/incorrectly installed/not " \
3975 "installed - Reseat optics, if issue not "
3976 "resolved, replace.");
4b8bae08
JS		 3977 break;
3978 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3979 sprintf(message,
292098be
JS		 3980 "Optics of two types installed - Remove one optic or " \
3981 "install matching pair of optics.");
4b8bae08
JS		 3982 break;
3983 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
292098be
JS		 3984 sprintf(message, "Incompatible optics - Replace with " \
3985 "compatible optics for card to function.");
4b8bae08
JS		 3986 break;
3987 default:
3988 /* firmware is reporting a status we don't know about */
3989 sprintf(message, "Unknown event status x%02x", status);
3990 break;
3991 }
3992
3993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3994 "3176 Misconfigured Physical Port - "
3995 "Port Name %c %s\n", port_name, message);
70f3c073
JS		 3996}
3997
fc2b989b
JS		 3998/**
3999 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4000 * @vport: pointer to vport data structure.
4001 *
4002 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4003 * response to a CVL event.
4004 *
4005 * Return the pointer to the ndlp with the vport if successful, otherwise
4006 * return NULL.
4007 **/
4008static struct lpfc_nodelist *
4009lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4010{
4011 struct lpfc_nodelist *ndlp;
4012 struct Scsi_Host *shost;
4013 struct lpfc_hba *phba;
4014
4015 if (!vport)
4016 return NULL;
fc2b989b
JS		 4017 phba = vport->phba;
4018 if (!phba)
4019 return NULL;
78730cfe
JS		 4020 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4021 if (!ndlp) {
4022 /* Cannot find existing Fabric ndlp, so allocate a new one */
4023 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4024 if (!ndlp)
4025 return 0;
4026 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4027 /* Set the node type */
4028 ndlp->nlp_type |= NLP_FABRIC;
4029 /* Put ndlp onto node list */
4030 lpfc_enqueue_node(vport, ndlp);
4031 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4032 /* re-setup ndlp without removing from node list */
4033 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4034 if (!ndlp)
4035 return 0;
4036 }
63e801ce
JS		 4037 if ((phba->pport->port_state < LPFC_FLOGI) &&
4038 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 4039 return NULL;
4040 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 4041 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4042 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 4043 return NULL;
4044 shost = lpfc_shost_from_vport(vport);
4045 if (!shost)
4046 return NULL;
4047 lpfc_linkdown_port(vport);
4048 lpfc_cleanup_pending_mbox(vport);
4049 spin_lock_irq(shost->host_lock);
4050 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4051 spin_unlock_irq(shost->host_lock);
4052
4053 return ndlp;
4054}
4055
4056/**
4057 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4058 * @vport: pointer to lpfc hba data structure.
4059 *
4060 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4061 * response to a FCF dead event.
4062 **/
4063static void
4064lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4065{
4066 struct lpfc_vport **vports;
4067 int i;
4068
4069 vports = lpfc_create_vport_work_array(phba);
4070 if (vports)
4071 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4072 lpfc_sli4_perform_vport_cvl(vports[i]);
4073 lpfc_destroy_vport_work_array(phba, vports);
4074}
4075
da0436e9 4076/**
76a95d75 4077 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 4078 * @phba: pointer to lpfc hba data structure.
4079 * @acqe_link: pointer to the async fcoe completion queue entry.
4080 *
4081 * This routine is to handle the SLI4 asynchronous fcoe event.
4082 **/
4083static void
76a95d75 4084lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 4085 struct lpfc_acqe_fip *acqe_fip)
da0436e9 4086{
70f3c073 4087 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 4088 int rc;
6669f9bb
JS		 4089 struct lpfc_vport *vport;
4090 struct lpfc_nodelist *ndlp;
4091 struct Scsi_Host *shost;
695a814e
JS		 4092 int active_vlink_present;
4093 struct lpfc_vport **vports;
4094 int i;
da0436e9 4095
70f3c073
JS		 4096 phba->fc_eventTag = acqe_fip->event_tag;
4097 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 4098 switch (event_type) {
70f3c073
JS		 4099 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4100 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4101 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 4102 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4103 LOG_DISCOVERY,
a93ff37a
JS		 4104 "2546 New FCF event, evt_tag:x%x, "
4105 "index:x%x\n",
70f3c073
JS		 4106 acqe_fip->event_tag,
4107 acqe_fip->index);
999d813f
JS		 4108 else
4109 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4110 LOG_DISCOVERY,
a93ff37a
JS		 4111 "2788 FCF param modified event, "
4112 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 4113 acqe_fip->event_tag,
4114 acqe_fip->index);
38b92ef8 4115 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 4116 /*
4117 * During period of FCF discovery, read the FCF
4118 * table record indexed by the event to update
a93ff37a 4119 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 4120 */
4121 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4122 LOG_DISCOVERY,
a93ff37a
JS		 4123 "2779 Read FCF (x%x) for updating "
4124 "roundrobin FCF failover bmask\n",
70f3c073
JS		 4125 acqe_fip->index);
4126 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 4127 }
38b92ef8
JS		 4128
4129 /* If the FCF discovery is in progress, do nothing. */
3804dc84 4130 spin_lock_irq(&phba->hbalock);
a93ff37a 4131 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 4132 spin_unlock_irq(&phba->hbalock);
4133 break;
4134 }
4135 /* If fast FCF failover rescan event is pending, do nothing */
4136 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4137 spin_unlock_irq(&phba->hbalock);
4138 break;
4139 }
4140
c2b9712e
JS		 4141 /* If the FCF has been in discovered state, do nothing. */
4142 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3804dc84
JS		 4143 spin_unlock_irq(&phba->hbalock);
4144 break;
4145 }
4146 spin_unlock_irq(&phba->hbalock);
38b92ef8 4147
0c9ab6f5
JS		 4148 /* Otherwise, scan the entire FCF table and re-discover SAN */
4149 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 4150 "2770 Start FCF table scan per async FCF "
4151 "event, evt_tag:x%x, index:x%x\n",
70f3c073 4152 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 4153 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4154 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 4155 if (rc)
0c9ab6f5
JS		 4156 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4157 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 4158 "command failed (x%x)\n", rc);
da0436e9
JS		 4159 break;
4160
70f3c073 4161 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 4162 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 4163 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 4164 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4165 acqe_fip->event_tag);
da0436e9
JS		 4166 break;
4167
70f3c073 4168 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
80c17849 4169 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 4170 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 4171 "2549 FCF (x%x) disconnected from network, "
70f3c073 4172 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 4173 /*
4174 * If we are in the middle of FCF failover process, clear
4175 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 4176 */
fc2b989b 4177 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4178 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 4179 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 4180 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 4181 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 4182 break;
4183 }
38b92ef8
JS		 4184 spin_unlock_irq(&phba->hbalock);
4185
4186 /* If the event is not for currently used fcf do nothing */
70f3c073 4187 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 4188 break;
4189
4190 /*
4191 * Otherwise, request the port to rediscover the entire FCF
4192 * table for a fast recovery from case that the current FCF
4193 * is no longer valid as we are not in the middle of FCF
4194 * failover process already.
4195 */
c2b9712e
JS		 4196 spin_lock_irq(&phba->hbalock);
4197 /* Mark the fast failover process in progress */
4198 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4199 spin_unlock_irq(&phba->hbalock);
4200
4201 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4202 "2771 Start FCF fast failover process due to "
4203 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4204 "\n", acqe_fip->event_tag, acqe_fip->index);
4205 rc = lpfc_sli4_redisc_fcf_table(phba);
4206 if (rc) {
4207 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4208 LOG_DISCOVERY,
4209 "2772 Issue FCF rediscover mabilbox "
4210 "command failed, fail through to FCF "
4211 "dead event\n");
4212 spin_lock_irq(&phba->hbalock);
4213 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4214 spin_unlock_irq(&phba->hbalock);
4215 /*
4216 * Last resort will fail over by treating this
4217 * as a link down to FCF registration.
4218 */
4219 lpfc_sli4_fcf_dead_failthrough(phba);
4220 } else {
4221 /* Reset FCF roundrobin bmask for new discovery */
4222 lpfc_sli4_clear_fcf_rr_bmask(phba);
4223 /*
4224 * Handling fast FCF failover to a DEAD FCF event is
4225 * considered equalivant to receiving CVL to all vports.
4226 */
4227 lpfc_sli4_perform_all_vport_cvl(phba);
4228 }
da0436e9 4229 break;
70f3c073 4230 case LPFC_FIP_EVENT_TYPE_CVL:
80c17849 4231 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 4232 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 4233 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 4234 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 4235
6669f9bb 4236 vport = lpfc_find_vport_by_vpid(phba,
5248a749 4237 acqe_fip->index);
fc2b989b 4238 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 4239 if (!ndlp)
4240 break;
695a814e
JS		 4241 active_vlink_present = 0;
4242
4243 vports = lpfc_create_vport_work_array(phba);
4244 if (vports) {
4245 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4246 i++) {
4247 if ((!(vports[i]->fc_flag &
4248 FC_VPORT_CVL_RCVD)) &&
4249 (vports[i]->port_state > LPFC_FDISC)) {
4250 active_vlink_present = 1;
4251 break;
4252 }
4253 }
4254 lpfc_destroy_vport_work_array(phba, vports);
4255 }
4256
4257 if (active_vlink_present) {
4258 /*
4259 * If there are other active VLinks present,
4260 * re-instantiate the Vlink using FDISC.
4261 */
256ec0d0
JS		 4262 mod_timer(&ndlp->nlp_delayfunc,
4263 jiffies + msecs_to_jiffies(1000));
fc2b989b 4264 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 4265 spin_lock_irq(shost->host_lock);
4266 ndlp->nlp_flag |= NLP_DELAY_TMO;
4267 spin_unlock_irq(shost->host_lock);
695a814e
JS		 4268 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4269 vport->port_state = LPFC_FDISC;
4270 } else {
ecfd03c6
JS		 4271 /*
4272 * Otherwise, we request port to rediscover
4273 * the entire FCF table for a fast recovery
4274 * from possible case that the current FCF
0c9ab6f5
JS		 4275 * is no longer valid if we are not already
4276 * in the FCF failover process.
ecfd03c6 4277 */
fc2b989b 4278 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4279 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 4280 spin_unlock_irq(&phba->hbalock);
4281 break;
4282 }
4283 /* Mark the fast failover process in progress */
0c9ab6f5 4284 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 4285 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 4286 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4287 LOG_DISCOVERY,
a93ff37a 4288 "2773 Start FCF failover per CVL, "
70f3c073 4289 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 4290 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 4291 if (rc) {
0c9ab6f5
JS		 4292 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4293 LOG_DISCOVERY,
4294 "2774 Issue FCF rediscover "
4295 "mabilbox command failed, "
4296 "through to CVL event\n");
fc2b989b 4297 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4298 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 4299 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 4300 /*
4301 * Last resort will be re-try on the
4302 * the current registered FCF entry.
4303 */
4304 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 4305 } else
4306 /*
4307 * Reset FCF roundrobin bmask for new
4308 * discovery.
4309 */
7d791df7 4310 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 4311 }
4312 break;
da0436e9
JS		 4313 default:
4314 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4315 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 4316 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 4317 break;
4318 }
4319}
4320
4321/**
4322 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4323 * @phba: pointer to lpfc hba data structure.
4324 * @acqe_link: pointer to the async dcbx completion queue entry.
4325 *
4326 * This routine is to handle the SLI4 asynchronous dcbx event.
4327 **/
4328static void
4329lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4330 struct lpfc_acqe_dcbx *acqe_dcbx)
4331{
4d9ab994 4332 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 4333 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4334 "0290 The SLI4 DCBX asynchronous event is not "
4335 "handled yet\n");
4336}
4337
b19a061a
JS		 4338/**
4339 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4340 * @phba: pointer to lpfc hba data structure.
4341 * @acqe_link: pointer to the async grp5 completion queue entry.
4342 *
4343 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4344 * is an asynchronous notified of a logical link speed change. The Port
4345 * reports the logical link speed in units of 10Mbps.
4346 **/
4347static void
4348lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4349 struct lpfc_acqe_grp5 *acqe_grp5)
4350{
4351 uint16_t prev_ll_spd;
4352
4353 phba->fc_eventTag = acqe_grp5->event_tag;
4354 phba->fcoe_eventtag = acqe_grp5->event_tag;
4355 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4356 phba->sli4_hba.link_state.logical_speed =
8b68cd52 4357 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
b19a061a
JS		 4358 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4359 "2789 GRP5 Async Event: Updating logical link speed "
8b68cd52
JS		 4360 "from %dMbps to %dMbps\n", prev_ll_spd,
4361 phba->sli4_hba.link_state.logical_speed);
b19a061a
JS		 4362}
4363
da0436e9
JS		 4364/**
4365 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4366 * @phba: pointer to lpfc hba data structure.
4367 *
4368 * This routine is invoked by the worker thread to process all the pending
4369 * SLI4 asynchronous events.
4370 **/
4371void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4372{
4373 struct lpfc_cq_event *cq_event;
4374
4375 /* First, declare the async event has been handled */
4376 spin_lock_irq(&phba->hbalock);
4377 phba->hba_flag &= ~ASYNC_EVENT;
4378 spin_unlock_irq(&phba->hbalock);
4379 /* Now, handle all the async events */
4380 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4381 /* Get the first event from the head of the event queue */
4382 spin_lock_irq(&phba->hbalock);
4383 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4384 cq_event, struct lpfc_cq_event, list);
4385 spin_unlock_irq(&phba->hbalock);
4386 /* Process the asynchronous event */
4387 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4388 case LPFC_TRAILER_CODE_LINK:
4389 lpfc_sli4_async_link_evt(phba,
4390 &cq_event->cqe.acqe_link);
4391 break;
4392 case LPFC_TRAILER_CODE_FCOE:
70f3c073 4393 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 4394 break;
4395 case LPFC_TRAILER_CODE_DCBX:
4396 lpfc_sli4_async_dcbx_evt(phba,
4397 &cq_event->cqe.acqe_dcbx);
4398 break;
b19a061a
JS		 4399 case LPFC_TRAILER_CODE_GRP5:
4400 lpfc_sli4_async_grp5_evt(phba,
4401 &cq_event->cqe.acqe_grp5);
4402 break;
70f3c073
JS		 4403 case LPFC_TRAILER_CODE_FC:
4404 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4405 break;
4406 case LPFC_TRAILER_CODE_SLI:
4407 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4408 break;
da0436e9
JS		 4409 default:
4410 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4411 "1804 Invalid asynchrous event code: "
4412 "x%x\n", bf_get(lpfc_trailer_code,
4413 &cq_event->cqe.mcqe_cmpl));
4414 break;
4415 }
4416 /* Free the completion event processed to the free pool */
4417 lpfc_sli4_cq_event_release(phba, cq_event);
4418 }
4419}
4420
ecfd03c6
JS		 4421/**
4422 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4423 * @phba: pointer to lpfc hba data structure.
4424 *
4425 * This routine is invoked by the worker thread to process FCF table
4426 * rediscovery pending completion event.
4427 **/
4428void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4429{
4430 int rc;
4431
4432 spin_lock_irq(&phba->hbalock);
4433 /* Clear FCF rediscovery timeout event */
4434 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4435 /* Clear driver fast failover FCF record flag */
4436 phba->fcf.failover_rec.flag = 0;
4437 /* Set state for FCF fast failover */
4438 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4439 spin_unlock_irq(&phba->hbalock);
4440
4441 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 4442 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 4443 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 4444 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 4445 if (rc)
0c9ab6f5
JS		 4446 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4447 "2747 Issue FCF scan read FCF mailbox "
4448 "command failed 0x%x\n", rc);
ecfd03c6
JS		 4449}
4450
da0436e9
JS		 4451/**
4452 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4453 * @phba: pointer to lpfc hba data structure.
4454 * @dev_grp: The HBA PCI-Device group number.
4455 *
4456 * This routine is invoked to set up the per HBA PCI-Device group function
4457 * API jump table entries.
4458 *
4459 * Return: 0 if success, otherwise -ENODEV
4460 **/
4461int
4462lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4463{
4464 int rc;
4465
4466 /* Set up lpfc PCI-device group */
4467 phba->pci_dev_grp = dev_grp;
4468
4469 /* The LPFC_PCI_DEV_OC uses SLI4 */
4470 if (dev_grp == LPFC_PCI_DEV_OC)
4471 phba->sli_rev = LPFC_SLI_REV4;
4472
4473 /* Set up device INIT API function jump table */
4474 rc = lpfc_init_api_table_setup(phba, dev_grp);
4475 if (rc)
4476 return -ENODEV;
4477 /* Set up SCSI API function jump table */
4478 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4479 if (rc)
4480 return -ENODEV;
4481 /* Set up SLI API function jump table */
4482 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4483 if (rc)
4484 return -ENODEV;
4485 /* Set up MBOX API function jump table */
4486 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4487 if (rc)
4488 return -ENODEV;
4489
4490 return 0;
5b75da2f
JS		 4491}
4492
4493/**
3621a710 4494 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 4495 * @phba: pointer to lpfc hba data structure.
4496 * @intr_mode: active interrupt mode adopted.
4497 *
4498 * This routine it invoked to log the currently used active interrupt mode
4499 * to the device.
3772a991
JS		 4500 **/
4501static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 4502{
4503 switch (intr_mode) {
4504 case 0:
4505 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4506 "0470 Enable INTx interrupt mode.\n");
4507 break;
4508 case 1:
4509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4510 "0481 Enabled MSI interrupt mode.\n");
4511 break;
4512 case 2:
4513 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4514 "0480 Enabled MSI-X interrupt mode.\n");
4515 break;
4516 default:
4517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4518 "0482 Illegal interrupt mode.\n");
4519 break;
4520 }
4521 return;
4522}
4523
5b75da2f 4524/**
3772a991 4525 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 4526 * @phba: pointer to lpfc hba data structure.
4527 *
3772a991
JS		 4528 * This routine is invoked to enable the PCI device that is common to all
4529 * PCI devices.
5b75da2f
JS		 4530 *
4531 * Return codes
af901ca1 4532 * 0 - successful
3772a991 4533 * other values - error
5b75da2f 4534 **/
3772a991
JS		 4535static int
4536lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4537{
3772a991 4538 struct pci_dev *pdev;
079b5c91 4539 int bars = 0;
5b75da2f 4540
3772a991
JS		 4541 /* Obtain PCI device reference */
4542 if (!phba->pcidev)
4543 goto out_error;
4544 else
4545 pdev = phba->pcidev;
4546 /* Select PCI BARs */
4547 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4548 /* Enable PCI device */
4549 if (pci_enable_device_mem(pdev))
4550 goto out_error;
4551 /* Request PCI resource for the device */
4552 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4553 goto out_disable_device;
4554 /* Set up device as PCI master and save state for EEH */
4555 pci_set_master(pdev);
4556 pci_try_set_mwi(pdev);
4557 pci_save_state(pdev);
5b75da2f 4558
0558056c 4559 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
453193e0 4560 if (pci_is_pcie(pdev))
0558056c
JS		 4561 pdev->needs_freset = 1;
4562
3772a991 4563 return 0;
5b75da2f 4564
3772a991
JS		 4565out_disable_device:
4566 pci_disable_device(pdev);
4567out_error:
079b5c91
JS		 4568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4569 "1401 Failed to enable pci device, bars:x%x\n", bars);
3772a991 4570 return -ENODEV;
5b75da2f
JS		 4571}
4572
4573/**
3772a991 4574 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 4575 * @phba: pointer to lpfc hba data structure.
4576 *
3772a991
JS		 4577 * This routine is invoked to disable the PCI device that is common to all
4578 * PCI devices.
5b75da2f
JS		 4579 **/
4580static void
3772a991 4581lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4582{
3772a991
JS		 4583 struct pci_dev *pdev;
4584 int bars;
5b75da2f 4585
3772a991
JS		 4586 /* Obtain PCI device reference */
4587 if (!phba->pcidev)
4588 return;
4589 else
4590 pdev = phba->pcidev;
4591 /* Select PCI BARs */
4592 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4593 /* Release PCI resource and disable PCI device */
4594 pci_release_selected_regions(pdev, bars);
4595 pci_disable_device(pdev);
5b75da2f
JS		 4596
4597 return;
4598}
4599
e59058c4 4600/**
3772a991
JS		 4601 * lpfc_reset_hba - Reset a hba
4602 * @phba: pointer to lpfc hba data structure.
e59058c4 4603 *
3772a991
JS		 4604 * This routine is invoked to reset a hba device. It brings the HBA
4605 * offline, performs a board restart, and then brings the board back
4606 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4607 * on outstanding mailbox commands.
e59058c4 4608 **/
3772a991
JS		 4609void
4610lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4611{
3772a991
JS		 4612 /* If resets are disabled then set error state and return. */
4613 if (!phba->cfg_enable_hba_reset) {
4614 phba->link_state = LPFC_HBA_ERROR;
4615 return;
4616 }
618a5230 4617 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3772a991
JS		 4618 lpfc_offline(phba);
4619 lpfc_sli_brdrestart(phba);
4620 lpfc_online(phba);
4621 lpfc_unblock_mgmt_io(phba);
4622}
dea3101e 4623
0a96e975
JS		 4624/**
4625 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4626 * @phba: pointer to lpfc hba data structure.
4627 *
4628 * This function enables the PCI SR-IOV virtual functions to a physical
4629 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4630 * enable the number of virtual functions to the physical function. As
4631 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4632 * API call does not considered as an error condition for most of the device.
4633 **/
4634uint16_t
4635lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4636{
4637 struct pci_dev *pdev = phba->pcidev;
4638 uint16_t nr_virtfn;
4639 int pos;
4640
0a96e975
JS		 4641 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4642 if (pos == 0)
4643 return 0;
4644
4645 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4646 return nr_virtfn;
4647}
4648
912e3acd
JS		 4649/**
4650 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4651 * @phba: pointer to lpfc hba data structure.
4652 * @nr_vfn: number of virtual functions to be enabled.
4653 *
4654 * This function enables the PCI SR-IOV virtual functions to a physical
4655 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4656 * enable the number of virtual functions to the physical function. As
4657 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4658 * API call does not considered as an error condition for most of the device.
4659 **/
4660int
4661lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4662{
4663 struct pci_dev *pdev = phba->pcidev;
0a96e975 4664 uint16_t max_nr_vfn;
912e3acd
JS		 4665 int rc;
4666
0a96e975
JS		 4667 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4668 if (nr_vfn > max_nr_vfn) {
4669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4670 "3057 Requested vfs (%d) greater than "
4671 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4672 return -EINVAL;
4673 }
4674
912e3acd
JS		 4675 rc = pci_enable_sriov(pdev, nr_vfn);
4676 if (rc) {
4677 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4678 "2806 Failed to enable sriov on this device "
4679 "with vfn number nr_vf:%d, rc:%d\n",
4680 nr_vfn, rc);
4681 } else
4682 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4683 "2807 Successful enable sriov on this device "
4684 "with vfn number nr_vf:%d\n", nr_vfn);
4685 return rc;
4686}
4687
3772a991
JS		 4688/**
4689 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4690 * @phba: pointer to lpfc hba data structure.
4691 *
4692 * This routine is invoked to set up the driver internal resources specific to
4693 * support the SLI-3 HBA device it attached to.
4694 *
4695 * Return codes
af901ca1 4696 * 0 - successful
3772a991
JS		 4697 * other values - error
4698 **/
4699static int
4700lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4701{
4702 struct lpfc_sli *psli;
912e3acd 4703 int rc;
dea3101e 4704
2e0fef85 4705 /*
3772a991 4706 * Initialize timers used by driver
2e0fef85 4707 */
dea3101e 4708
3772a991 4709 /* Heartbeat timer */
858c9f6c
JS		 4710 init_timer(&phba->hb_tmofunc);
4711 phba->hb_tmofunc.function = lpfc_hb_timeout;
4712 phba->hb_tmofunc.data = (unsigned long)phba;
4713
dea3101e 4714 psli = &phba->sli;
3772a991 4715 /* MBOX heartbeat timer */
dea3101e 4716 init_timer(&psli->mbox_tmo);
4717 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4718 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4719 /* FCP polling mode timer */
875fbdfe
JSEC		 4720 init_timer(&phba->fcp_poll_timer);
4721 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4722 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4723 /* Fabric block timer */
92d7f7b0
JS		 4724 init_timer(&phba->fabric_block_timer);
4725 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4726 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4727 /* EA polling mode timer */
9399627f
JS		 4728 init_timer(&phba->eratt_poll);
4729 phba->eratt_poll.function = lpfc_poll_eratt;
4730 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4731
3772a991
JS		 4732 /* Host attention work mask setup */
4733 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4734 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4735
3772a991
JS		 4736 /* Get all the module params for configuring this host */
4737 lpfc_get_cfgparam(phba);
49198b37
JS		 4738 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4739 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4740 /* check for menlo minimum sg count */
4741 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4742 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4743 }
4744
2a76a283
JS		 4745 if (!phba->sli.ring)
4746 phba->sli.ring = (struct lpfc_sli_ring *)
4747 kzalloc(LPFC_SLI3_MAX_RING *
4748 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4749 if (!phba->sli.ring)
4750 return -ENOMEM;
4751
dea3101e 4752 /*
96f7077f 4753 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
3772a991 4754 * used to create the sg_dma_buf_pool must be dynamically calculated.
dea3101e 4755 */
3772a991 4756
96f7077f
JS		 4757 /* Initialize the host templates the configured values. */
4758 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4759 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4760
4761 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
3772a991 4762 if (phba->cfg_enable_bg) {
96f7077f
JS		 4763 /*
4764 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4765 * the FCP rsp, and a BDE for each. Sice we have no control
4766 * over how many protection data segments the SCSI Layer
4767 * will hand us (ie: there could be one for every block
4768 * in the IO), we just allocate enough BDEs to accomidate
4769 * our max amount and we need to limit lpfc_sg_seg_cnt to
4770 * minimize the risk of running out.
4771 */
4772 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4773 sizeof(struct fcp_rsp) +
4774 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4775
4776 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4777 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4778
4779 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4780 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4781 } else {
4782 /*
4783 * The scsi_buf for a regular I/O will hold the FCP cmnd,
4784 * the FCP rsp, a BDE for each, and a BDE for up to
4785 * cfg_sg_seg_cnt data segments.
4786 */
4787 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4788 sizeof(struct fcp_rsp) +
4789 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4790
4791 /* Total BDEs in BPL for scsi_sg_list */
4792 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
901a920f 4793 }
dea3101e 4794
96f7077f
JS		 4795 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4796 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4797 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4798 phba->cfg_total_seg_cnt);
dea3101e 4799
3772a991
JS		 4800 phba->max_vpi = LPFC_MAX_VPI;
4801 /* This will be set to correct value after config_port mbox */
4802 phba->max_vports = 0;
dea3101e 4803
3772a991
JS		 4804 /*
4805 * Initialize the SLI Layer to run with lpfc HBAs.
4806 */
4807 lpfc_sli_setup(phba);
4808 lpfc_sli_queue_setup(phba);
ed957684 4809
3772a991
JS		 4810 /* Allocate device driver memory */
4811 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4812 return -ENOMEM;
51ef4c26 4813
912e3acd
JS		 4814 /*
4815 * Enable sr-iov virtual functions if supported and configured
4816 * through the module parameter.
4817 */
4818 if (phba->cfg_sriov_nr_virtfn > 0) {
4819 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4820 phba->cfg_sriov_nr_virtfn);
4821 if (rc) {
4822 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4823 "2808 Requested number of SR-IOV "
4824 "virtual functions (%d) is not "
4825 "supported\n",
4826 phba->cfg_sriov_nr_virtfn);
4827 phba->cfg_sriov_nr_virtfn = 0;
4828 }
4829 }
4830
3772a991
JS		 4831 return 0;
4832}
ed957684 4833
3772a991
JS		 4834/**
4835 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4836 * @phba: pointer to lpfc hba data structure.
4837 *
4838 * This routine is invoked to unset the driver internal resources set up
4839 * specific for supporting the SLI-3 HBA device it attached to.
4840 **/
4841static void
4842lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4843{
4844 /* Free device driver memory allocated */
4845 lpfc_mem_free_all(phba);
3163f725 4846
3772a991
JS		 4847 return;
4848}
dea3101e 4849
3772a991 4850/**
da0436e9 4851 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4852 * @phba: pointer to lpfc hba data structure.
4853 *
da0436e9
JS		 4854 * This routine is invoked to set up the driver internal resources specific to
4855 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4856 *
4857 * Return codes
af901ca1 4858 * 0 - successful
da0436e9 4859 * other values - error
3772a991
JS		 4860 **/
4861static int
da0436e9 4862lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4863{
7bb03bbf 4864 struct lpfc_vector_map_info *cpup;
da0436e9 4865 struct lpfc_sli *psli;
28baac74 4866 LPFC_MBOXQ_t *mboxq;
96f7077f 4867 int rc, i, hbq_count, max_buf_size;
28baac74
JS		 4868 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4869 struct lpfc_mqe *mqe;
09294d46 4870 int longs;
1ba981fd 4871 int fof_vectors = 0;
da0436e9 4872
716d3bc5
JS		 4873 /* Get all the module params for configuring this host */
4874 lpfc_get_cfgparam(phba);
4875
da0436e9
JS		 4876 /* Before proceed, wait for POST done and device ready */
4877 rc = lpfc_sli4_post_status_check(phba);
4878 if (rc)
4879 return -ENODEV;
4880
3772a991 4881 /*
da0436e9 4882 * Initialize timers used by driver
3772a991 4883 */
3772a991 4884
da0436e9
JS		 4885 /* Heartbeat timer */
4886 init_timer(&phba->hb_tmofunc);
4887 phba->hb_tmofunc.function = lpfc_hb_timeout;
4888 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4889 init_timer(&phba->rrq_tmr);
4890 phba->rrq_tmr.function = lpfc_rrq_timeout;
4891 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4892
da0436e9
JS		 4893 psli = &phba->sli;
4894 /* MBOX heartbeat timer */
4895 init_timer(&psli->mbox_tmo);
4896 psli->mbox_tmo.function = lpfc_mbox_timeout;
4897 psli->mbox_tmo.data = (unsigned long) phba;
4898 /* Fabric block timer */
4899 init_timer(&phba->fabric_block_timer);
4900 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4901 phba->fabric_block_timer.data = (unsigned long) phba;
4902 /* EA polling mode timer */
4903 init_timer(&phba->eratt_poll);
4904 phba->eratt_poll.function = lpfc_poll_eratt;
4905 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4906 /* FCF rediscover timer */
4907 init_timer(&phba->fcf.redisc_wait);
4908 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4909 phba->fcf.redisc_wait.data = (unsigned long)phba;
4910
7ad20aa9
JS		 4911 /*
4912 * Control structure for handling external multi-buffer mailbox
4913 * command pass-through.
4914 */
4915 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4916 sizeof(struct lpfc_mbox_ext_buf_ctx));
4917 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4918
da0436e9 4919 phba->max_vpi = LPFC_MAX_VPI;
67d12733 4920
da0436e9
JS		 4921 /* This will be set to correct value after the read_config mbox */
4922 phba->max_vports = 0;
3772a991 4923
da0436e9
JS		 4924 /* Program the default value of vlan_id and fc_map */
4925 phba->valid_vlan = 0;
4926 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4927 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4928 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4929
2a76a283
JS		 4930 /*
4931 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4932 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4933 */
4934 if (!phba->sli.ring)
4935 phba->sli.ring = kzalloc(
67d12733 4936 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
2a76a283
JS		 4937 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4938 if (!phba->sli.ring)
4939 return -ENOMEM;
09294d46 4940
da0436e9 4941 /*
09294d46
JS		 4942 * It doesn't matter what family our adapter is in, we are
4943 * limited to 2 Pages, 512 SGEs, for our SGL.
4944 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
4945 */
4946 max_buf_size = (2 * SLI4_PAGE_SIZE);
4947 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
4948 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
09294d46 4949
da0436e9 4950 /*
96f7077f 4951 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
da0436e9 4952 * used to create the sg_dma_buf_pool must be dynamically calculated.
da0436e9 4953 */
96f7077f
JS		 4954
4955 if (phba->cfg_enable_bg) {
4956 /*
4957 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4958 * the FCP rsp, and a SGE for each. Sice we have no control
4959 * over how many protection data segments the SCSI Layer
4960 * will hand us (ie: there could be one for every block
4961 * in the IO), we just allocate enough SGEs to accomidate
4962 * our max amount and we need to limit lpfc_sg_seg_cnt to
4963 * minimize the risk of running out.
4964 */
4965 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4966 sizeof(struct fcp_rsp) + max_buf_size;
4967
4968 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
4969 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
4970
4971 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
4972 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
4973 } else {
4974 /*
4975 * The scsi_buf for a regular I/O will hold the FCP cmnd,
4976 * the FCP rsp, a SGE for each, and a SGE for up to
4977 * cfg_sg_seg_cnt data segments.
4978 */
4979 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4980 sizeof(struct fcp_rsp) +
4981 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
4982
4983 /* Total SGEs for scsi_sg_list */
4984 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4985 /*
4986 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
4987 * to post 1 page for the SGL.
4988 */
085c647c 4989 }
acd6859b 4990
96f7077f
JS		 4991 /* Initialize the host templates with the updated values. */
4992 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4993 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4994
4995 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
4996 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
4997 else
4998 phba->cfg_sg_dma_buf_size =
4999 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5000
5001 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5002 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5003 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5004 phba->cfg_total_seg_cnt);
3772a991 5005
da0436e9
JS		 5006 /* Initialize buffer queue management fields */
5007 hbq_count = lpfc_sli_hbq_count();
5008 for (i = 0; i < hbq_count; ++i)
5009 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5010 INIT_LIST_HEAD(&phba->rb_pend_list);
5011 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5012 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 5013
da0436e9
JS		 5014 /*
5015 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5016 */
5017 /* Initialize the Abort scsi buffer list used by driver */
5018 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5019 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5020 /* This abort list used by worker thread */
5021 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 5022
da0436e9 5023 /*
6d368e53 5024 * Initialize driver internal slow-path work queues
da0436e9 5025 */
3772a991 5026
da0436e9
JS		 5027 /* Driver internel slow-path CQ Event pool */
5028 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5029 /* Response IOCB work queue list */
45ed1190 5030 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 5031 /* Asynchronous event CQ Event work queue list */
5032 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5033 /* Fast-path XRI aborted CQ Event work queue list */
5034 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5035 /* Slow-path XRI aborted CQ Event work queue list */
5036 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5037 /* Receive queue CQ Event work queue list */
5038 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5039
6d368e53
JS		 5040 /* Initialize extent block lists. */
5041 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5042 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5043 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5044 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5045
da0436e9
JS		 5046 /* Initialize the driver internal SLI layer lists. */
5047 lpfc_sli_setup(phba);
5048 lpfc_sli_queue_setup(phba);
3772a991 5049
da0436e9
JS		 5050 /* Allocate device driver memory */
5051 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5052 if (rc)
5053 return -ENOMEM;
5054
2fcee4bf
JS		 5055 /* IF Type 2 ports get initialized now. */
5056 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5057 LPFC_SLI_INTF_IF_TYPE_2) {
5058 rc = lpfc_pci_function_reset(phba);
5059 if (unlikely(rc))
5060 return -ENODEV;
5061 }
5062
da0436e9
JS		 5063 /* Create the bootstrap mailbox command */
5064 rc = lpfc_create_bootstrap_mbox(phba);
5065 if (unlikely(rc))
5066 goto out_free_mem;
5067
5068 /* Set up the host's endian order with the device. */
5069 rc = lpfc_setup_endian_order(phba);
5070 if (unlikely(rc))
5071 goto out_free_bsmbx;
5072
5073 /* Set up the hba's configuration parameters. */
5074 rc = lpfc_sli4_read_config(phba);
cff261f6
JS		 5075 if (unlikely(rc))
5076 goto out_free_bsmbx;
5077 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
da0436e9
JS		 5078 if (unlikely(rc))
5079 goto out_free_bsmbx;
5080
2fcee4bf
JS		 5081 /* IF Type 0 ports get initialized now. */
5082 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5083 LPFC_SLI_INTF_IF_TYPE_0) {
5084 rc = lpfc_pci_function_reset(phba);
5085 if (unlikely(rc))
5086 goto out_free_bsmbx;
5087 }
da0436e9 5088
cb5172ea
JS		 5089 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5090 GFP_KERNEL);
5091 if (!mboxq) {
5092 rc = -ENOMEM;
5093 goto out_free_bsmbx;
5094 }
5095
fedd3b7b 5096 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 5097 lpfc_supported_pages(mboxq);
5098 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 5099 if (!rc) {
5100 mqe = &mboxq->u.mqe;
5101 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5102 LPFC_MAX_SUPPORTED_PAGES);
5103 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5104 switch (pn_page[i]) {
5105 case LPFC_SLI4_PARAMETERS:
5106 phba->sli4_hba.pc_sli4_params.supported = 1;
5107 break;
5108 default:
5109 break;
5110 }
5111 }
5112 /* Read the port's SLI4 Parameters capabilities if supported. */
5113 if (phba->sli4_hba.pc_sli4_params.supported)
5114 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5115 if (rc) {
5116 mempool_free(mboxq, phba->mbox_mem_pool);
5117 rc = -EIO;
5118 goto out_free_bsmbx;
cb5172ea
JS		 5119 }
5120 }
fedd3b7b
JS		 5121 /*
5122 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 5123 * If this call fails, it isn't critical unless the SLI4 parameters come
5124 * back in conflict.
fedd3b7b 5125 */
6d368e53
JS		 5126 rc = lpfc_get_sli4_parameters(phba, mboxq);
5127 if (rc) {
5128 if (phba->sli4_hba.extents_in_use &&
5129 phba->sli4_hba.rpi_hdrs_in_use) {
5130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5131 "2999 Unsupported SLI4 Parameters "
5132 "Extents and RPI headers enabled.\n");
5133 goto out_free_bsmbx;
5134 }
5135 }
cb5172ea 5136 mempool_free(mboxq, phba->mbox_mem_pool);
1ba981fd
JS		 5137
5138 /* Verify OAS is supported */
5139 lpfc_sli4_oas_verify(phba);
5140 if (phba->cfg_fof)
5141 fof_vectors = 1;
5142
5350d872
JS		 5143 /* Verify all the SLI4 queues */
5144 rc = lpfc_sli4_queue_verify(phba);
da0436e9
JS		 5145 if (rc)
5146 goto out_free_bsmbx;
5147
5148 /* Create driver internal CQE event pool */
5149 rc = lpfc_sli4_cq_event_pool_create(phba);
5150 if (rc)
5350d872 5151 goto out_free_bsmbx;
da0436e9 5152
8a9d2e80
JS		 5153 /* Initialize sgl lists per host */
5154 lpfc_init_sgl_list(phba);
5155
5156 /* Allocate and initialize active sgl array */
da0436e9
JS		 5157 rc = lpfc_init_active_sgl_array(phba);
5158 if (rc) {
5159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5160 "1430 Failed to initialize sgl list.\n");
8a9d2e80 5161 goto out_destroy_cq_event_pool;
da0436e9 5162 }
da0436e9
JS		 5163 rc = lpfc_sli4_init_rpi_hdrs(phba);
5164 if (rc) {
5165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5166 "1432 Failed to initialize rpi headers.\n");
5167 goto out_free_active_sgl;
5168 }
5169
a93ff37a 5170 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 5171 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5172 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5173 GFP_KERNEL);
5174 if (!phba->fcf.fcf_rr_bmask) {
5175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5176 "2759 Failed allocate memory for FCF round "
5177 "robin failover bmask\n");
0558056c 5178 rc = -ENOMEM;
0c9ab6f5
JS		 5179 goto out_remove_rpi_hdrs;
5180 }
5181
67d12733
JS		 5182 phba->sli4_hba.fcp_eq_hdl =
5183 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
1ba981fd
JS		 5184 (fof_vectors + phba->cfg_fcp_io_channel)),
5185 GFP_KERNEL);
67d12733
JS		 5186 if (!phba->sli4_hba.fcp_eq_hdl) {
5187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5188 "2572 Failed allocate memory for "
5189 "fast-path per-EQ handle array\n");
5190 rc = -ENOMEM;
5191 goto out_free_fcf_rr_bmask;
da0436e9
JS		 5192 }
5193
5194 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
1ba981fd
JS		 5195 (fof_vectors +
5196 phba->cfg_fcp_io_channel)), GFP_KERNEL);
da0436e9
JS		 5197 if (!phba->sli4_hba.msix_entries) {
5198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5199 "2573 Failed allocate memory for msi-x "
5200 "interrupt vector entries\n");
0558056c 5201 rc = -ENOMEM;
da0436e9
JS		 5202 goto out_free_fcp_eq_hdl;
5203 }
5204
7bb03bbf
JS		 5205 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5206 phba->sli4_hba.num_present_cpu),
5207 GFP_KERNEL);
5208 if (!phba->sli4_hba.cpu_map) {
5209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5210 "3327 Failed allocate memory for msi-x "
5211 "interrupt vector mapping\n");
5212 rc = -ENOMEM;
5213 goto out_free_msix;
5214 }
b246de17
JS		 5215 if (lpfc_used_cpu == NULL) {
5216 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5217 GFP_KERNEL);
5218 if (!lpfc_used_cpu) {
5219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5220 "3335 Failed allocate memory for msi-x "
5221 "interrupt vector mapping\n");
5222 kfree(phba->sli4_hba.cpu_map);
5223 rc = -ENOMEM;
5224 goto out_free_msix;
5225 }
5226 for (i = 0; i < lpfc_present_cpu; i++)
5227 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5228 }
5229
7bb03bbf
JS		 5230 /* Initialize io channels for round robin */
5231 cpup = phba->sli4_hba.cpu_map;
5232 rc = 0;
5233 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5234 cpup->channel_id = rc;
5235 rc++;
5236 if (rc >= phba->cfg_fcp_io_channel)
5237 rc = 0;
5238 }
5239
912e3acd
JS		 5240 /*
5241 * Enable sr-iov virtual functions if supported and configured
5242 * through the module parameter.
5243 */
5244 if (phba->cfg_sriov_nr_virtfn > 0) {
5245 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5246 phba->cfg_sriov_nr_virtfn);
5247 if (rc) {
5248 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5249 "3020 Requested number of SR-IOV "
5250 "virtual functions (%d) is not "
5251 "supported\n",
5252 phba->cfg_sriov_nr_virtfn);
5253 phba->cfg_sriov_nr_virtfn = 0;
5254 }
5255 }
5256
5248a749 5257 return 0;
da0436e9 5258
7bb03bbf
JS		 5259out_free_msix:
5260 kfree(phba->sli4_hba.msix_entries);
da0436e9
JS		 5261out_free_fcp_eq_hdl:
5262 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 5263out_free_fcf_rr_bmask:
5264 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 5265out_remove_rpi_hdrs:
5266 lpfc_sli4_remove_rpi_hdrs(phba);
5267out_free_active_sgl:
5268 lpfc_free_active_sgl(phba);
da0436e9
JS		 5269out_destroy_cq_event_pool:
5270 lpfc_sli4_cq_event_pool_destroy(phba);
da0436e9
JS		 5271out_free_bsmbx:
5272 lpfc_destroy_bootstrap_mbox(phba);
5273out_free_mem:
5274 lpfc_mem_free(phba);
5275 return rc;
5276}
5277
5278/**
5279 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5280 * @phba: pointer to lpfc hba data structure.
5281 *
5282 * This routine is invoked to unset the driver internal resources set up
5283 * specific for supporting the SLI-4 HBA device it attached to.
5284 **/
5285static void
5286lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5287{
5288 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5289
7bb03bbf
JS		 5290 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5291 kfree(phba->sli4_hba.cpu_map);
5292 phba->sli4_hba.num_present_cpu = 0;
5293 phba->sli4_hba.num_online_cpu = 0;
76fd07a6 5294 phba->sli4_hba.curr_disp_cpu = 0;
7bb03bbf 5295
da0436e9
JS		 5296 /* Free memory allocated for msi-x interrupt vector entries */
5297 kfree(phba->sli4_hba.msix_entries);
5298
5299 /* Free memory allocated for fast-path work queue handles */
5300 kfree(phba->sli4_hba.fcp_eq_hdl);
5301
5302 /* Free the allocated rpi headers. */
5303 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 5304 lpfc_sli4_remove_rpis(phba);
da0436e9 5305
0c9ab6f5
JS		 5306 /* Free eligible FCF index bmask */
5307 kfree(phba->fcf.fcf_rr_bmask);
5308
da0436e9
JS		 5309 /* Free the ELS sgl list */
5310 lpfc_free_active_sgl(phba);
8a9d2e80 5311 lpfc_free_els_sgl_list(phba);
da0436e9 5312
da0436e9
JS		 5313 /* Free the completion queue EQ event pool */
5314 lpfc_sli4_cq_event_release_all(phba);
5315 lpfc_sli4_cq_event_pool_destroy(phba);
5316
6d368e53
JS		 5317 /* Release resource identifiers. */
5318 lpfc_sli4_dealloc_resource_identifiers(phba);
5319
da0436e9
JS		 5320 /* Free the bsmbx region. */
5321 lpfc_destroy_bootstrap_mbox(phba);
5322
5323 /* Free the SLI Layer memory with SLI4 HBAs */
5324 lpfc_mem_free_all(phba);
5325
5326 /* Free the current connect table */
5327 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 5328 &phba->fcf_conn_rec_list, list) {
5329 list_del_init(&conn_entry->list);
da0436e9 5330 kfree(conn_entry);
4d9ab994 5331 }
da0436e9
JS		 5332
5333 return;
5334}
5335
5336/**
25985edc 5337 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 5338 * @phba: The hba struct for which this call is being executed.
5339 * @dev_grp: The HBA PCI-Device group number.
5340 *
5341 * This routine sets up the device INIT interface API function jump table
5342 * in @phba struct.
5343 *
5344 * Returns: 0 - success, -ENODEV - failure.
5345 **/
5346int
5347lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5348{
84d1b006
JS		 5349 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5350 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 5351 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 5352 switch (dev_grp) {
5353 case LPFC_PCI_DEV_LP:
5354 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5355 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5356 phba->lpfc_stop_port = lpfc_stop_port_s3;
5357 break;
5358 case LPFC_PCI_DEV_OC:
5359 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5360 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5361 phba->lpfc_stop_port = lpfc_stop_port_s4;
5362 break;
5363 default:
5364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5365 "1431 Invalid HBA PCI-device group: 0x%x\n",
5366 dev_grp);
5367 return -ENODEV;
5368 break;
5369 }
5370 return 0;
5371}
5372
5373/**
5374 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5375 * @phba: pointer to lpfc hba data structure.
5376 *
5377 * This routine is invoked to set up the driver internal resources before the
5378 * device specific resource setup to support the HBA device it attached to.
5379 *
5380 * Return codes
af901ca1 5381 * 0 - successful
da0436e9
JS		 5382 * other values - error
5383 **/
5384static int
5385lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5386{
5387 /*
5388 * Driver resources common to all SLI revisions
5389 */
5390 atomic_set(&phba->fast_event_count, 0);
5391 spin_lock_init(&phba->hbalock);
5392
5393 /* Initialize ndlp management spinlock */
5394 spin_lock_init(&phba->ndlp_lock);
5395
5396 INIT_LIST_HEAD(&phba->port_list);
5397 INIT_LIST_HEAD(&phba->work_list);
5398 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5399
5400 /* Initialize the wait queue head for the kernel thread */
5401 init_waitqueue_head(&phba->work_waitq);
5402
5403 /* Initialize the scsi buffer list used by driver for scsi IO */
a40fc5f0
JS		 5404 spin_lock_init(&phba->scsi_buf_list_get_lock);
5405 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5406 spin_lock_init(&phba->scsi_buf_list_put_lock);
5407 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
da0436e9
JS		 5408
5409 /* Initialize the fabric iocb list */
5410 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5411
5412 /* Initialize list to save ELS buffers */
5413 INIT_LIST_HEAD(&phba->elsbuf);
5414
5415 /* Initialize FCF connection rec list */
5416 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5417
1ba981fd
JS		 5418 /* Initialize OAS configuration list */
5419 spin_lock_init(&phba->devicelock);
5420 INIT_LIST_HEAD(&phba->luns);
5421
da0436e9
JS		 5422 return 0;
5423}
5424
5425/**
5426 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5427 * @phba: pointer to lpfc hba data structure.
5428 *
5429 * This routine is invoked to set up the driver internal resources after the
5430 * device specific resource setup to support the HBA device it attached to.
5431 *
5432 * Return codes
af901ca1 5433 * 0 - successful
da0436e9
JS		 5434 * other values - error
5435 **/
5436static int
5437lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5438{
5439 int error;
5440
5441 /* Startup the kernel thread for this host adapter. */
5442 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5443 "lpfc_worker_%d", phba->brd_no);
5444 if (IS_ERR(phba->worker_thread)) {
5445 error = PTR_ERR(phba->worker_thread);
5446 return error;
3772a991
JS		 5447 }
5448
5449 return 0;
5450}
5451
5452/**
5453 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5454 * @phba: pointer to lpfc hba data structure.
5455 *
5456 * This routine is invoked to unset the driver internal resources set up after
5457 * the device specific resource setup for supporting the HBA device it
5458 * attached to.
5459 **/
5460static void
5461lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5462{
5463 /* Stop kernel worker thread */
5464 kthread_stop(phba->worker_thread);
5465}
5466
5467/**
5468 * lpfc_free_iocb_list - Free iocb list.
5469 * @phba: pointer to lpfc hba data structure.
5470 *
5471 * This routine is invoked to free the driver's IOCB list and memory.
5472 **/
5473static void
5474lpfc_free_iocb_list(struct lpfc_hba *phba)
5475{
5476 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5477
5478 spin_lock_irq(&phba->hbalock);
5479 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5480 &phba->lpfc_iocb_list, list) {
5481 list_del(&iocbq_entry->list);
5482 kfree(iocbq_entry);
5483 phba->total_iocbq_bufs--;
98c9ea5c 5484 }
3772a991
JS		 5485 spin_unlock_irq(&phba->hbalock);
5486
5487 return;
5488}
5489
5490/**
5491 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5492 * @phba: pointer to lpfc hba data structure.
5493 *
5494 * This routine is invoked to allocate and initizlize the driver's IOCB
5495 * list and set up the IOCB tag array accordingly.
5496 *
5497 * Return codes
af901ca1 5498 * 0 - successful
3772a991
JS		 5499 * other values - error
5500 **/
5501static int
5502lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5503{
5504 struct lpfc_iocbq *iocbq_entry = NULL;
5505 uint16_t iotag;
5506 int i;
dea3101e 5507
5508 /* Initialize and populate the iocb list per host. */
5509 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 5510 for (i = 0; i < iocb_count; i++) {
dd00cc48 5511 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 5512 if (iocbq_entry == NULL) {
5513 printk(KERN_ERR "%s: only allocated %d iocbs of "
5514 "expected %d count. Unloading driver.\n",
cadbd4a5 5515 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 5516 goto out_free_iocbq;
5517 }
5518
604a3e30
JB		 5519 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5520 if (iotag == 0) {
3772a991 5521 kfree(iocbq_entry);
604a3e30 5522 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 5523 "Unloading driver.\n", __func__);
604a3e30
JB		 5524 goto out_free_iocbq;
5525 }
6d368e53 5526 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 5527 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 5528
5529 spin_lock_irq(&phba->hbalock);
dea3101e 5530 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5531 phba->total_iocbq_bufs++;
2e0fef85 5532 spin_unlock_irq(&phba->hbalock);
dea3101e 5533 }
5534
3772a991 5535 return 0;
dea3101e 5536
3772a991
JS		 5537out_free_iocbq:
5538 lpfc_free_iocb_list(phba);
dea3101e 5539
3772a991
JS		 5540 return -ENOMEM;
5541}
5e9d9b82 5542
3772a991 5543/**
8a9d2e80 5544 * lpfc_free_sgl_list - Free a given sgl list.
da0436e9 5545 * @phba: pointer to lpfc hba data structure.
8a9d2e80 5546 * @sglq_list: pointer to the head of sgl list.
3772a991 5547 *
8a9d2e80 5548 * This routine is invoked to free a give sgl list and memory.
3772a991 5549 **/
8a9d2e80
JS		 5550void
5551lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
3772a991 5552{
da0436e9 5553 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8a9d2e80
JS		 5554
5555 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5556 list_del(&sglq_entry->list);
5557 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5558 kfree(sglq_entry);
5559 }
5560}
5561
5562/**
5563 * lpfc_free_els_sgl_list - Free els sgl list.
5564 * @phba: pointer to lpfc hba data structure.
5565 *
5566 * This routine is invoked to free the driver's els sgl list and memory.
5567 **/
5568static void
5569lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5570{
da0436e9 5571 LIST_HEAD(sglq_list);
dea3101e 5572
8a9d2e80 5573 /* Retrieve all els sgls from driver list */
da0436e9
JS		 5574 spin_lock_irq(&phba->hbalock);
5575 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5576 spin_unlock_irq(&phba->hbalock);
dea3101e 5577
8a9d2e80
JS		 5578 /* Now free the sgl list */
5579 lpfc_free_sgl_list(phba, &sglq_list);
da0436e9 5580}
92d7f7b0 5581
da0436e9
JS		 5582/**
5583 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5584 * @phba: pointer to lpfc hba data structure.
5585 *
5586 * This routine is invoked to allocate the driver's active sgl memory.
5587 * This array will hold the sglq_entry's for active IOs.
5588 **/
5589static int
5590lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5591{
5592 int size;
5593 size = sizeof(struct lpfc_sglq *);
5594 size *= phba->sli4_hba.max_cfg_param.max_xri;
5595
5596 phba->sli4_hba.lpfc_sglq_active_list =
5597 kzalloc(size, GFP_KERNEL);
5598 if (!phba->sli4_hba.lpfc_sglq_active_list)
5599 return -ENOMEM;
5600 return 0;
3772a991
JS		 5601}
5602
5603/**
da0436e9 5604 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 5605 * @phba: pointer to lpfc hba data structure.
5606 *
da0436e9
JS		 5607 * This routine is invoked to walk through the array of active sglq entries
5608 * and free all of the resources.
5609 * This is just a place holder for now.
3772a991
JS		 5610 **/
5611static void
da0436e9 5612lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 5613{
da0436e9 5614 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 5615}
5616
5617/**
da0436e9 5618 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 5619 * @phba: pointer to lpfc hba data structure.
5620 *
da0436e9
JS		 5621 * This routine is invoked to allocate and initizlize the driver's sgl
5622 * list and set up the sgl xritag tag array accordingly.
3772a991 5623 *
3772a991 5624 **/
8a9d2e80 5625static void
da0436e9 5626lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 5627{
da0436e9
JS		 5628 /* Initialize and populate the sglq list per host/VF. */
5629 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5630 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5631
8a9d2e80
JS		 5632 /* els xri-sgl book keeping */
5633 phba->sli4_hba.els_xri_cnt = 0;
0ff10d46 5634
8a9d2e80 5635 /* scsi xri-buffer book keeping */
da0436e9 5636 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 5637}
5638
5639/**
5640 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5641 * @phba: pointer to lpfc hba data structure.
5642 *
5643 * This routine is invoked to post rpi header templates to the
88a2cfbb 5644 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5645 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5646 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5647 * and should be called only when interrupts are disabled.
da0436e9
JS		 5648 *
5649 * Return codes
af901ca1 5650 * 0 - successful
88a2cfbb 5651 * -ERROR - otherwise.
da0436e9
JS		 5652 **/
5653int
5654lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5655{
5656 int rc = 0;
da0436e9
JS		 5657 struct lpfc_rpi_hdr *rpi_hdr;
5658
5659 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
ff78d8f9 5660 if (!phba->sli4_hba.rpi_hdrs_in_use)
6d368e53 5661 return rc;
6d368e53
JS		 5662 if (phba->sli4_hba.extents_in_use)
5663 return -EIO;
da0436e9
JS		 5664
5665 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5666 if (!rpi_hdr) {
5667 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5668 "0391 Error during rpi post operation\n");
5669 lpfc_sli4_remove_rpis(phba);
5670 rc = -ENODEV;
5671 }
5672
5673 return rc;
5674}
5675
5676/**
5677 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5678 * @phba: pointer to lpfc hba data structure.
5679 *
5680 * This routine is invoked to allocate a single 4KB memory region to
5681 * support rpis and stores them in the phba. This single region
5682 * provides support for up to 64 rpis. The region is used globally
5683 * by the device.
5684 *
5685 * Returns:
5686 * A valid rpi hdr on success.
5687 * A NULL pointer on any failure.
5688 **/
5689struct lpfc_rpi_hdr *
5690lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5691{
5692 uint16_t rpi_limit, curr_rpi_range;
5693 struct lpfc_dmabuf *dmabuf;
5694 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5695 uint32_t rpi_count;
da0436e9 5696
6d368e53
JS		 5697 /*
5698 * If the SLI4 port supports extents, posting the rpi header isn't
5699 * required. Set the expected maximum count and let the actual value
5700 * get set when extents are fully allocated.
5701 */
5702 if (!phba->sli4_hba.rpi_hdrs_in_use)
5703 return NULL;
5704 if (phba->sli4_hba.extents_in_use)
5705 return NULL;
5706
5707 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5708 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5709 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5710
5711 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5712 /*
5713 * Establish the starting RPI in this header block. The starting
5714 * rpi is normalized to a zero base because the physical rpi is
5715 * port based.
5716 */
97f2ecf1 5717 curr_rpi_range = phba->sli4_hba.next_rpi;
da0436e9
JS		 5718 spin_unlock_irq(&phba->hbalock);
5719
5720 /*
5721 * The port has a limited number of rpis. The increment here
5722 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5723 * and to allow the full max_rpi range per port.
5724 */
5725 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5726 rpi_count = rpi_limit - curr_rpi_range;
5727 else
5728 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5729
6d368e53
JS		 5730 if (!rpi_count)
5731 return NULL;
da0436e9
JS		 5732 /*
5733 * First allocate the protocol header region for the port. The
5734 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5735 */
5736 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5737 if (!dmabuf)
5738 return NULL;
5739
5740 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5741 LPFC_HDR_TEMPLATE_SIZE,
5742 &dmabuf->phys,
5743 GFP_KERNEL);
5744 if (!dmabuf->virt) {
5745 rpi_hdr = NULL;
5746 goto err_free_dmabuf;
5747 }
5748
5749 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5750 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5751 rpi_hdr = NULL;
5752 goto err_free_coherent;
5753 }
5754
5755 /* Save the rpi header data for cleanup later. */
5756 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5757 if (!rpi_hdr)
5758 goto err_free_coherent;
5759
5760 rpi_hdr->dmabuf = dmabuf;
5761 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5762 rpi_hdr->page_count = 1;
5763 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5764
5765 /* The rpi_hdr stores the logical index only. */
5766 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5767 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5768
5769 /*
6d368e53
JS		 5770 * The next_rpi stores the next logical module-64 rpi value used
5771 * to post physical rpis in subsequent rpi postings.
da0436e9 5772 */
9589b062 5773 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5774 spin_unlock_irq(&phba->hbalock);
5775 return rpi_hdr;
5776
5777 err_free_coherent:
5778 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5779 dmabuf->virt, dmabuf->phys);
5780 err_free_dmabuf:
5781 kfree(dmabuf);
5782 return NULL;
5783}
5784
5785/**
5786 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5787 * @phba: pointer to lpfc hba data structure.
5788 *
5789 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5790 * to support rpis for SLI4 ports not supporting extents. This routine
5791 * presumes the caller has released all rpis consumed by fabric or port
5792 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5793 **/
5794void
5795lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5796{
5797 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5798
6d368e53
JS		 5799 if (!phba->sli4_hba.rpi_hdrs_in_use)
5800 goto exit;
5801
da0436e9
JS		 5802 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5803 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5804 list_del(&rpi_hdr->list);
5805 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5806 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5807 kfree(rpi_hdr->dmabuf);
5808 kfree(rpi_hdr);
5809 }
6d368e53
JS		 5810 exit:
5811 /* There are no rpis available to the port now. */
5812 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5813}
5814
5815/**
5816 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5817 * @pdev: pointer to pci device data structure.
5818 *
5819 * This routine is invoked to allocate the driver hba data structure for an
5820 * HBA device. If the allocation is successful, the phba reference to the
5821 * PCI device data structure is set.
5822 *
5823 * Return codes
af901ca1 5824 * pointer to @phba - successful
da0436e9
JS		 5825 * NULL - error
5826 **/
5827static struct lpfc_hba *
5828lpfc_hba_alloc(struct pci_dev *pdev)
5829{
5830 struct lpfc_hba *phba;
5831
5832 /* Allocate memory for HBA structure */
5833 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5834 if (!phba) {
e34ccdfe 5835 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5836 return NULL;
5837 }
5838
5839 /* Set reference to PCI device in HBA structure */
5840 phba->pcidev = pdev;
5841
5842 /* Assign an unused board number */
5843 phba->brd_no = lpfc_get_instance();
5844 if (phba->brd_no < 0) {
5845 kfree(phba);
5846 return NULL;
5847 }
5848
4fede78f 5849 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5850 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5851
da0436e9
JS		 5852 return phba;
5853}
5854
5855/**
5856 * lpfc_hba_free - Free driver hba data structure with a device.
5857 * @phba: pointer to lpfc hba data structure.
5858 *
5859 * This routine is invoked to free the driver hba data structure with an
5860 * HBA device.
5861 **/
5862static void
5863lpfc_hba_free(struct lpfc_hba *phba)
5864{
5865 /* Release the driver assigned board number */
5866 idr_remove(&lpfc_hba_index, phba->brd_no);
5867
2a76a283
JS		 5868 /* Free memory allocated with sli rings */
5869 kfree(phba->sli.ring);
5870 phba->sli.ring = NULL;
5871
da0436e9
JS		 5872 kfree(phba);
5873 return;
5874}
5875
5876/**
5877 * lpfc_create_shost - Create hba physical port with associated scsi host.
5878 * @phba: pointer to lpfc hba data structure.
5879 *
5880 * This routine is invoked to create HBA physical port and associate a SCSI
5881 * host with it.
5882 *
5883 * Return codes
af901ca1 5884 * 0 - successful
da0436e9
JS		 5885 * other values - error
5886 **/
5887static int
5888lpfc_create_shost(struct lpfc_hba *phba)
5889{
5890 struct lpfc_vport *vport;
5891 struct Scsi_Host *shost;
5892
5893 /* Initialize HBA FC structure */
5894 phba->fc_edtov = FF_DEF_EDTOV;
5895 phba->fc_ratov = FF_DEF_RATOV;
5896 phba->fc_altov = FF_DEF_ALTOV;
5897 phba->fc_arbtov = FF_DEF_ARBTOV;
5898
d7c47992 5899 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5900 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5901 if (!vport)
5902 return -ENODEV;
5903
5904 shost = lpfc_shost_from_vport(vport);
5905 phba->pport = vport;
5906 lpfc_debugfs_initialize(vport);
5907 /* Put reference to SCSI host to driver's device private data */
5908 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5909
3772a991
JS		 5910 return 0;
5911}
db2378e0 5912
3772a991
JS		 5913/**
5914 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5915 * @phba: pointer to lpfc hba data structure.
5916 *
5917 * This routine is invoked to destroy HBA physical port and the associated
5918 * SCSI host.
5919 **/
5920static void
5921lpfc_destroy_shost(struct lpfc_hba *phba)
5922{
5923 struct lpfc_vport *vport = phba->pport;
5924
5925 /* Destroy physical port that associated with the SCSI host */
5926 destroy_port(vport);
5927
5928 return;
5929}
5930
5931/**
5932 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5933 * @phba: pointer to lpfc hba data structure.
5934 * @shost: the shost to be used to detect Block guard settings.
5935 *
5936 * This routine sets up the local Block guard protocol settings for @shost.
5937 * This routine also allocates memory for debugging bg buffers.
5938 **/
5939static void
5940lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5941{
bbeb79b9
JS		 5942 uint32_t old_mask;
5943 uint32_t old_guard;
5944
3772a991
JS		 5945 int pagecnt = 10;
5946 if (lpfc_prot_mask && lpfc_prot_guard) {
5947 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5948 "1478 Registering BlockGuard with the "
5949 "SCSI layer\n");
bbeb79b9
JS		 5950
5951 old_mask = lpfc_prot_mask;
5952 old_guard = lpfc_prot_guard;
5953
5954 /* Only allow supported values */
5955 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5956 SHOST_DIX_TYPE0_PROTECTION |
5957 SHOST_DIX_TYPE1_PROTECTION);
5958 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5959
5960 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5961 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5962 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5963
5964 if (lpfc_prot_mask && lpfc_prot_guard) {
5965 if ((old_mask != lpfc_prot_mask) ||
5966 (old_guard != lpfc_prot_guard))
5967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5968 "1475 Registering BlockGuard with the "
5969 "SCSI layer: mask %d guard %d\n",
5970 lpfc_prot_mask, lpfc_prot_guard);
5971
5972 scsi_host_set_prot(shost, lpfc_prot_mask);
5973 scsi_host_set_guard(shost, lpfc_prot_guard);
5974 } else
5975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5976 "1479 Not Registering BlockGuard with the SCSI "
5977 "layer, Bad protection parameters: %d %d\n",
5978 old_mask, old_guard);
3772a991 5979 }
bbeb79b9 5980
3772a991
JS		 5981 if (!_dump_buf_data) {
5982 while (pagecnt) {
5983 spin_lock_init(&_dump_buf_lock);
5984 _dump_buf_data =
5985 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5986 if (_dump_buf_data) {
6a9c52cf
JS		 5987 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5988 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5989 "_dump_buf_data at 0x%p\n",
5990 (1 << pagecnt), _dump_buf_data);
5991 _dump_buf_data_order = pagecnt;
5992 memset(_dump_buf_data, 0,
5993 ((1 << PAGE_SHIFT) << pagecnt));
5994 break;
5995 } else
5996 --pagecnt;
5997 }
5998 if (!_dump_buf_data_order)
6a9c52cf
JS		 5999 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6000 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 6001 "memory for hexdump\n");
6002 } else
6a9c52cf
JS		 6003 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6004 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 6005 "\n", _dump_buf_data);
6006 if (!_dump_buf_dif) {
6007 while (pagecnt) {
6008 _dump_buf_dif =
6009 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6010 if (_dump_buf_dif) {
6a9c52cf
JS		 6011 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6012 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 6013 "_dump_buf_dif at 0x%p\n",
6014 (1 << pagecnt), _dump_buf_dif);
6015 _dump_buf_dif_order = pagecnt;
6016 memset(_dump_buf_dif, 0,
6017 ((1 << PAGE_SHIFT) << pagecnt));
6018 break;
6019 } else
6020 --pagecnt;
6021 }
6022 if (!_dump_buf_dif_order)
6a9c52cf
JS		 6023 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6024 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 6025 "memory for hexdump\n");
6026 } else
6a9c52cf
JS		 6027 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6028 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 6029 _dump_buf_dif);
6030}
6031
6032/**
6033 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6034 * @phba: pointer to lpfc hba data structure.
6035 *
6036 * This routine is invoked to perform all the necessary post initialization
6037 * setup for the device.
6038 **/
6039static void
6040lpfc_post_init_setup(struct lpfc_hba *phba)
6041{
6042 struct Scsi_Host *shost;
6043 struct lpfc_adapter_event_header adapter_event;
6044
6045 /* Get the default values for Model Name and Description */
6046 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6047
6048 /*
6049 * hba setup may have changed the hba_queue_depth so we need to
6050 * adjust the value of can_queue.
6051 */
6052 shost = pci_get_drvdata(phba->pcidev);
6053 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6054 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6055 lpfc_setup_bg(phba, shost);
6056
6057 lpfc_host_attrib_init(shost);
6058
6059 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6060 spin_lock_irq(shost->host_lock);
6061 lpfc_poll_start_timer(phba);
6062 spin_unlock_irq(shost->host_lock);
6063 }
6064
6065 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6066 "0428 Perform SCSI scan\n");
6067 /* Send board arrival event to upper layer */
6068 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6069 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6070 fc_host_post_vendor_event(shost, fc_get_event_number(),
6071 sizeof(adapter_event),
6072 (char *) &adapter_event,
6073 LPFC_NL_VENDOR_ID);
6074 return;
6075}
6076
6077/**
6078 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6079 * @phba: pointer to lpfc hba data structure.
6080 *
6081 * This routine is invoked to set up the PCI device memory space for device
6082 * with SLI-3 interface spec.
6083 *
6084 * Return codes
af901ca1 6085 * 0 - successful
3772a991
JS		 6086 * other values - error
6087 **/
6088static int
6089lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6090{
6091 struct pci_dev *pdev;
6092 unsigned long bar0map_len, bar2map_len;
6093 int i, hbq_count;
6094 void *ptr;
6095 int error = -ENODEV;
6096
6097 /* Obtain PCI device reference */
6098 if (!phba->pcidev)
6099 return error;
6100 else
6101 pdev = phba->pcidev;
6102
6103 /* Set the device DMA mask size */
8e68597d
MR		 6104 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6105 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6106 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6107 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 6108 return error;
8e68597d
MR		 6109 }
6110 }
3772a991
JS		 6111
6112 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6113 * required by each mapping.
6114 */
6115 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6116 bar0map_len = pci_resource_len(pdev, 0);
6117
6118 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6119 bar2map_len = pci_resource_len(pdev, 2);
6120
6121 /* Map HBA SLIM to a kernel virtual address. */
6122 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6123 if (!phba->slim_memmap_p) {
6124 dev_printk(KERN_ERR, &pdev->dev,
6125 "ioremap failed for SLIM memory.\n");
6126 goto out;
6127 }
6128
6129 /* Map HBA Control Registers to a kernel virtual address. */
6130 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6131 if (!phba->ctrl_regs_memmap_p) {
6132 dev_printk(KERN_ERR, &pdev->dev,
6133 "ioremap failed for HBA control registers.\n");
6134 goto out_iounmap_slim;
6135 }
6136
6137 /* Allocate memory for SLI-2 structures */
6138 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6139 SLI2_SLIM_SIZE,
6140 &phba->slim2p.phys,
6141 GFP_KERNEL);
6142 if (!phba->slim2p.virt)
6143 goto out_iounmap;
6144
6145 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6146 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 6147 phba->mbox_ext = (phba->slim2p.virt +
6148 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 6149 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6150 phba->IOCBs = (phba->slim2p.virt +
6151 offsetof(struct lpfc_sli2_slim, IOCBs));
6152
6153 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6154 lpfc_sli_hbq_size(),
6155 &phba->hbqslimp.phys,
6156 GFP_KERNEL);
6157 if (!phba->hbqslimp.virt)
6158 goto out_free_slim;
6159
6160 hbq_count = lpfc_sli_hbq_count();
6161 ptr = phba->hbqslimp.virt;
6162 for (i = 0; i < hbq_count; ++i) {
6163 phba->hbqs[i].hbq_virt = ptr;
6164 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6165 ptr += (lpfc_hbq_defs[i]->entry_count *
6166 sizeof(struct lpfc_hbq_entry));
6167 }
6168 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6169 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6170
6171 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6172
6173 INIT_LIST_HEAD(&phba->rb_pend_list);
6174
6175 phba->MBslimaddr = phba->slim_memmap_p;
6176 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6177 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6178 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6179 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6180
6181 return 0;
6182
6183out_free_slim:
6184 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6185 phba->slim2p.virt, phba->slim2p.phys);
6186out_iounmap:
6187 iounmap(phba->ctrl_regs_memmap_p);
6188out_iounmap_slim:
6189 iounmap(phba->slim_memmap_p);
6190out:
6191 return error;
6192}
6193
6194/**
6195 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6196 * @phba: pointer to lpfc hba data structure.
6197 *
6198 * This routine is invoked to unset the PCI device memory space for device
6199 * with SLI-3 interface spec.
6200 **/
6201static void
6202lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6203{
6204 struct pci_dev *pdev;
6205
6206 /* Obtain PCI device reference */
6207 if (!phba->pcidev)
6208 return;
6209 else
6210 pdev = phba->pcidev;
6211
6212 /* Free coherent DMA memory allocated */
6213 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6214 phba->hbqslimp.virt, phba->hbqslimp.phys);
6215 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6216 phba->slim2p.virt, phba->slim2p.phys);
6217
6218 /* I/O memory unmap */
6219 iounmap(phba->ctrl_regs_memmap_p);
6220 iounmap(phba->slim_memmap_p);
6221
6222 return;
6223}
6224
6225/**
da0436e9 6226 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 6227 * @phba: pointer to lpfc hba data structure.
6228 *
da0436e9
JS		 6229 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6230 * done and check status.
3772a991 6231 *
da0436e9 6232 * Return 0 if successful, otherwise -ENODEV.
3772a991 6233 **/
da0436e9
JS		 6234int
6235lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 6236{
2fcee4bf
JS		 6237 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6238 struct lpfc_register reg_data;
6239 int i, port_error = 0;
6240 uint32_t if_type;
3772a991 6241
9940b97b
JS		 6242 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6243 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 6244 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 6245 return -ENODEV;
3772a991 6246
da0436e9
JS		 6247 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6248 for (i = 0; i < 3000; i++) {
9940b97b
JS		 6249 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6250 &portsmphr_reg.word0) ||
6251 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 6252 /* Port has a fatal POST error, break out */
da0436e9
JS		 6253 port_error = -ENODEV;
6254 break;
6255 }
2fcee4bf
JS		 6256 if (LPFC_POST_STAGE_PORT_READY ==
6257 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 6258 break;
da0436e9 6259 msleep(10);
3772a991
JS		 6260 }
6261
2fcee4bf
JS		 6262 /*
6263 * If there was a port error during POST, then don't proceed with
6264 * other register reads as the data may not be valid. Just exit.
6265 */
6266 if (port_error) {
da0436e9 6267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 6268 "1408 Port Failed POST - portsmphr=0x%x, "
6269 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6270 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6271 portsmphr_reg.word0,
6272 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6273 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6274 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6275 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6276 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6277 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6278 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6279 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6280 } else {
28baac74 6281 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 6282 "2534 Device Info: SLIFamily=0x%x, "
6283 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6284 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 6285 bf_get(lpfc_sli_intf_sli_family,
6286 &phba->sli4_hba.sli_intf),
6287 bf_get(lpfc_sli_intf_slirev,
6288 &phba->sli4_hba.sli_intf),
085c647c
JS		 6289 bf_get(lpfc_sli_intf_if_type,
6290 &phba->sli4_hba.sli_intf),
6291 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 6292 &phba->sli4_hba.sli_intf),
085c647c
JS		 6293 bf_get(lpfc_sli_intf_sli_hint2,
6294 &phba->sli4_hba.sli_intf),
6295 bf_get(lpfc_sli_intf_func_type,
28baac74 6296 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 6297 /*
6298 * Check for other Port errors during the initialization
6299 * process. Fail the load if the port did not come up
6300 * correctly.
6301 */
6302 if_type = bf_get(lpfc_sli_intf_if_type,
6303 &phba->sli4_hba.sli_intf);
6304 switch (if_type) {
6305 case LPFC_SLI_INTF_IF_TYPE_0:
6306 phba->sli4_hba.ue_mask_lo =
6307 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6308 phba->sli4_hba.ue_mask_hi =
6309 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6310 uerrlo_reg.word0 =
6311 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6312 uerrhi_reg.word0 =
6313 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6314 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6315 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6317 "1422 Unrecoverable Error "
6318 "Detected during POST "
6319 "uerr_lo_reg=0x%x, "
6320 "uerr_hi_reg=0x%x, "
6321 "ue_mask_lo_reg=0x%x, "
6322 "ue_mask_hi_reg=0x%x\n",
6323 uerrlo_reg.word0,
6324 uerrhi_reg.word0,
6325 phba->sli4_hba.ue_mask_lo,
6326 phba->sli4_hba.ue_mask_hi);
6327 port_error = -ENODEV;
6328 }
6329 break;
6330 case LPFC_SLI_INTF_IF_TYPE_2:
6331 /* Final checks. The port status should be clean. */
9940b97b
JS		 6332 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6333 &reg_data.word0) ||
0558056c
JS		 6334 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6335 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 6336 phba->work_status[0] =
6337 readl(phba->sli4_hba.u.if_type2.
6338 ERR1regaddr);
6339 phba->work_status[1] =
6340 readl(phba->sli4_hba.u.if_type2.
6341 ERR2regaddr);
6342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd
JS		 6343 "2888 Unrecoverable port error "
6344 "following POST: port status reg "
6345 "0x%x, port_smphr reg 0x%x, "
2fcee4bf
JS		 6346 "error 1=0x%x, error 2=0x%x\n",
6347 reg_data.word0,
6348 portsmphr_reg.word0,
6349 phba->work_status[0],
6350 phba->work_status[1]);
6351 port_error = -ENODEV;
6352 }
6353 break;
6354 case LPFC_SLI_INTF_IF_TYPE_1:
6355 default:
6356 break;
6357 }
28baac74 6358 }
da0436e9
JS		 6359 return port_error;
6360}
3772a991 6361
da0436e9
JS		 6362/**
6363 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6364 * @phba: pointer to lpfc hba data structure.
2fcee4bf 6365 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 6366 *
6367 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6368 * memory map.
6369 **/
6370static void
2fcee4bf
JS		 6371lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6372{
6373 switch (if_type) {
6374 case LPFC_SLI_INTF_IF_TYPE_0:
6375 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6376 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6377 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6378 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6379 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6380 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6381 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6382 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6383 phba->sli4_hba.SLIINTFregaddr =
6384 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6385 break;
6386 case LPFC_SLI_INTF_IF_TYPE_2:
6387 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 6388 phba->sli4_hba.conf_regs_memmap_p +
6389 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 6390 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 6391 phba->sli4_hba.conf_regs_memmap_p +
6392 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 6393 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 6394 phba->sli4_hba.conf_regs_memmap_p +
6395 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 6396 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 6397 phba->sli4_hba.conf_regs_memmap_p +
6398 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 6399 phba->sli4_hba.SLIINTFregaddr =
6400 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6401 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 6402 phba->sli4_hba.conf_regs_memmap_p +
6403 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf 6404 phba->sli4_hba.RQDBregaddr =
962bc51b
JS		 6405 phba->sli4_hba.conf_regs_memmap_p +
6406 LPFC_ULP0_RQ_DOORBELL;
2fcee4bf 6407 phba->sli4_hba.WQDBregaddr =
962bc51b
JS		 6408 phba->sli4_hba.conf_regs_memmap_p +
6409 LPFC_ULP0_WQ_DOORBELL;
2fcee4bf
JS		 6410 phba->sli4_hba.EQCQDBregaddr =
6411 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6412 phba->sli4_hba.MQDBregaddr =
6413 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6414 phba->sli4_hba.BMBXregaddr =
6415 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6416 break;
6417 case LPFC_SLI_INTF_IF_TYPE_1:
6418 default:
6419 dev_printk(KERN_ERR, &phba->pcidev->dev,
6420 "FATAL - unsupported SLI4 interface type - %d\n",
6421 if_type);
6422 break;
6423 }
da0436e9 6424}
3772a991 6425
da0436e9
JS		 6426/**
6427 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6428 * @phba: pointer to lpfc hba data structure.
6429 *
6430 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6431 * memory map.
6432 **/
6433static void
6434lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6435{
2fcee4bf
JS		 6436 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6437 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 6438 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6439 LPFC_HST_ISR0;
da0436e9 6440 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6441 LPFC_HST_IMR0;
da0436e9 6442 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6443 LPFC_HST_ISCR0;
3772a991
JS		 6444}
6445
6446/**
da0436e9 6447 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 6448 * @phba: pointer to lpfc hba data structure.
da0436e9 6449 * @vf: virtual function number
3772a991 6450 *
da0436e9
JS		 6451 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6452 * based on the given viftual function number, @vf.
6453 *
6454 * Return 0 if successful, otherwise -ENODEV.
3772a991 6455 **/
da0436e9
JS		 6456static int
6457lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 6458{
da0436e9
JS		 6459 if (vf > LPFC_VIR_FUNC_MAX)
6460 return -ENODEV;
3772a991 6461
da0436e9 6462 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
962bc51b
JS		 6463 vf * LPFC_VFR_PAGE_SIZE +
6464 LPFC_ULP0_RQ_DOORBELL);
da0436e9 6465 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
962bc51b
JS		 6466 vf * LPFC_VFR_PAGE_SIZE +
6467 LPFC_ULP0_WQ_DOORBELL);
da0436e9
JS		 6468 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6469 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6470 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6471 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6472 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6473 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6474 return 0;
3772a991
JS		 6475}
6476
6477/**
da0436e9 6478 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 6479 * @phba: pointer to lpfc hba data structure.
6480 *
da0436e9
JS		 6481 * This routine is invoked to create the bootstrap mailbox
6482 * region consistent with the SLI-4 interface spec. This
6483 * routine allocates all memory necessary to communicate
6484 * mailbox commands to the port and sets up all alignment
6485 * needs. No locks are expected to be held when calling
6486 * this routine.
3772a991
JS		 6487 *
6488 * Return codes
af901ca1 6489 * 0 - successful
d439d286 6490 * -ENOMEM - could not allocated memory.
da0436e9 6491 **/
3772a991 6492static int
da0436e9 6493lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6494{
da0436e9
JS		 6495 uint32_t bmbx_size;
6496 struct lpfc_dmabuf *dmabuf;
6497 struct dma_address *dma_address;
6498 uint32_t pa_addr;
6499 uint64_t phys_addr;
6500
6501 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6502 if (!dmabuf)
6503 return -ENOMEM;
3772a991 6504
da0436e9
JS		 6505 /*
6506 * The bootstrap mailbox region is comprised of 2 parts
6507 * plus an alignment restriction of 16 bytes.
6508 */
6509 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6510 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6511 bmbx_size,
6512 &dmabuf->phys,
6513 GFP_KERNEL);
6514 if (!dmabuf->virt) {
6515 kfree(dmabuf);
6516 return -ENOMEM;
3772a991 6517 }
da0436e9 6518 memset(dmabuf->virt, 0, bmbx_size);
3772a991 6519
da0436e9
JS		 6520 /*
6521 * Initialize the bootstrap mailbox pointers now so that the register
6522 * operations are simple later. The mailbox dma address is required
6523 * to be 16-byte aligned. Also align the virtual memory as each
6524 * maibox is copied into the bmbx mailbox region before issuing the
6525 * command to the port.
6526 */
6527 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6528 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6529
6530 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6531 LPFC_ALIGN_16_BYTE);
6532 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6533 LPFC_ALIGN_16_BYTE);
6534
6535 /*
6536 * Set the high and low physical addresses now. The SLI4 alignment
6537 * requirement is 16 bytes and the mailbox is posted to the port
6538 * as two 30-bit addresses. The other data is a bit marking whether
6539 * the 30-bit address is the high or low address.
6540 * Upcast bmbx aphys to 64bits so shift instruction compiles
6541 * clean on 32 bit machines.
6542 */
6543 dma_address = &phba->sli4_hba.bmbx.dma_address;
6544 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6545 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6546 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6547 LPFC_BMBX_BIT1_ADDR_HI);
6548
6549 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6550 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6551 LPFC_BMBX_BIT1_ADDR_LO);
6552 return 0;
3772a991
JS		 6553}
6554
6555/**
da0436e9 6556 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 6557 * @phba: pointer to lpfc hba data structure.
6558 *
da0436e9
JS		 6559 * This routine is invoked to teardown the bootstrap mailbox
6560 * region and release all host resources. This routine requires
6561 * the caller to ensure all mailbox commands recovered, no
6562 * additional mailbox comands are sent, and interrupts are disabled
6563 * before calling this routine.
6564 *
6565 **/
3772a991 6566static void
da0436e9 6567lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6568{
da0436e9
JS		 6569 dma_free_coherent(&phba->pcidev->dev,
6570 phba->sli4_hba.bmbx.bmbx_size,
6571 phba->sli4_hba.bmbx.dmabuf->virt,
6572 phba->sli4_hba.bmbx.dmabuf->phys);
6573
6574 kfree(phba->sli4_hba.bmbx.dmabuf);
6575 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 6576}
6577
6578/**
da0436e9 6579 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 6580 * @phba: pointer to lpfc hba data structure.
6581 *
da0436e9
JS		 6582 * This routine is invoked to read the configuration parameters from the HBA.
6583 * The configuration parameters are used to set the base and maximum values
6584 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6585 * allocation for the port.
3772a991
JS		 6586 *
6587 * Return codes
af901ca1 6588 * 0 - successful
25985edc 6589 * -ENOMEM - No available memory
d439d286 6590 * -EIO - The mailbox failed to complete successfully.
3772a991 6591 **/
ff78d8f9 6592int
da0436e9 6593lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 6594{
da0436e9
JS		 6595 LPFC_MBOXQ_t *pmb;
6596 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 6597 union lpfc_sli4_cfg_shdr *shdr;
6598 uint32_t shdr_status, shdr_add_status;
6599 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6600 struct lpfc_rsrc_desc_fcfcoe *desc;
8aa134a8 6601 char *pdesc_0;
912e3acd 6602 uint32_t desc_count;
8aa134a8 6603 int length, i, rc = 0, rc2;
3772a991 6604
da0436e9
JS		 6605 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6606 if (!pmb) {
6607 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6608 "2011 Unable to allocate memory for issuing "
6609 "SLI_CONFIG_SPECIAL mailbox command\n");
6610 return -ENOMEM;
3772a991
JS		 6611 }
6612
da0436e9 6613 lpfc_read_config(phba, pmb);
3772a991 6614
da0436e9
JS		 6615 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6616 if (rc != MBX_SUCCESS) {
6617 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6618 "2012 Mailbox failed , mbxCmd x%x "
6619 "READ_CONFIG, mbxStatus x%x\n",
6620 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6621 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6622 rc = -EIO;
6623 } else {
6624 rd_config = &pmb->u.mqe.un.rd_config;
ff78d8f9
JS		 6625 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6626 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6627 phba->sli4_hba.lnk_info.lnk_tp =
6628 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6629 phba->sli4_hba.lnk_info.lnk_no =
6630 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6631 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6632 "3081 lnk_type:%d, lnk_numb:%d\n",
6633 phba->sli4_hba.lnk_info.lnk_tp,
6634 phba->sli4_hba.lnk_info.lnk_no);
6635 } else
6636 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6637 "3082 Mailbox (x%x) returned ldv:x0\n",
6638 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6d368e53
JS		 6639 phba->sli4_hba.extents_in_use =
6640 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 6641 phba->sli4_hba.max_cfg_param.max_xri =
6642 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6643 phba->sli4_hba.max_cfg_param.xri_base =
6644 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6645 phba->sli4_hba.max_cfg_param.max_vpi =
6646 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6647 phba->sli4_hba.max_cfg_param.vpi_base =
6648 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6649 phba->sli4_hba.max_cfg_param.max_rpi =
6650 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6651 phba->sli4_hba.max_cfg_param.rpi_base =
6652 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6653 phba->sli4_hba.max_cfg_param.max_vfi =
6654 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6655 phba->sli4_hba.max_cfg_param.vfi_base =
6656 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6657 phba->sli4_hba.max_cfg_param.max_fcfi =
6658 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 6659 phba->sli4_hba.max_cfg_param.max_eq =
6660 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6661 phba->sli4_hba.max_cfg_param.max_rq =
6662 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6663 phba->sli4_hba.max_cfg_param.max_wq =
6664 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6665 phba->sli4_hba.max_cfg_param.max_cq =
6666 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6667 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6668 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6669 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6670 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5ffc266e
JS		 6671 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6672 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 6673 phba->max_vports = phba->max_vpi;
6674 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 6675 "2003 cfg params Extents? %d "
6676 "XRI(B:%d M:%d), "
da0436e9
JS		 6677 "VPI(B:%d M:%d) "
6678 "VFI(B:%d M:%d) "
6679 "RPI(B:%d M:%d) "
6d368e53
JS		 6680 "FCFI(Count:%d)\n",
6681 phba->sli4_hba.extents_in_use,
da0436e9
JS		 6682 phba->sli4_hba.max_cfg_param.xri_base,
6683 phba->sli4_hba.max_cfg_param.max_xri,
6684 phba->sli4_hba.max_cfg_param.vpi_base,
6685 phba->sli4_hba.max_cfg_param.max_vpi,
6686 phba->sli4_hba.max_cfg_param.vfi_base,
6687 phba->sli4_hba.max_cfg_param.max_vfi,
6688 phba->sli4_hba.max_cfg_param.rpi_base,
6689 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 6690 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 6691 }
912e3acd
JS		 6692
6693 if (rc)
6694 goto read_cfg_out;
da0436e9
JS		 6695
6696 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
572709e2
JS		 6697 length = phba->sli4_hba.max_cfg_param.max_xri -
6698 lpfc_sli4_get_els_iocb_cnt(phba);
6699 if (phba->cfg_hba_queue_depth > length) {
6700 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6701 "3361 HBA queue depth changed from %d to %d\n",
6702 phba->cfg_hba_queue_depth, length);
6703 phba->cfg_hba_queue_depth = length;
6704 }
912e3acd
JS		 6705
6706 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6707 LPFC_SLI_INTF_IF_TYPE_2)
6708 goto read_cfg_out;
6709
6710 /* get the pf# and vf# for SLI4 if_type 2 port */
6711 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6712 sizeof(struct lpfc_sli4_cfg_mhdr));
6713 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6714 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6715 length, LPFC_SLI4_MBX_EMBED);
6716
8aa134a8 6717 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
912e3acd
JS		 6718 shdr = (union lpfc_sli4_cfg_shdr *)
6719 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6720 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6721 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8aa134a8 6722 if (rc2 || shdr_status || shdr_add_status) {
912e3acd
JS		 6723 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6724 "3026 Mailbox failed , mbxCmd x%x "
6725 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6726 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6727 bf_get(lpfc_mqe_status, &pmb->u.mqe));
912e3acd
JS		 6728 goto read_cfg_out;
6729 }
6730
6731 /* search for fc_fcoe resrouce descriptor */
6732 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6733 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6734
8aa134a8
JS		 6735 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6736 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6737 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6738 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6739 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6740 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6741 goto read_cfg_out;
6742
912e3acd 6743 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8aa134a8 6744 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
912e3acd 6745 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8aa134a8 6746 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
912e3acd
JS		 6747 phba->sli4_hba.iov.pf_number =
6748 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6749 phba->sli4_hba.iov.vf_number =
6750 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6751 break;
6752 }
6753 }
6754
6755 if (i < LPFC_RSRC_DESC_MAX_NUM)
6756 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6757 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6758 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6759 phba->sli4_hba.iov.vf_number);
8aa134a8 6760 else
912e3acd
JS		 6761 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6762 "3028 GET_FUNCTION_CONFIG: failed to find "
6763 "Resrouce Descriptor:x%x\n",
6764 LPFC_RSRC_DESC_TYPE_FCFCOE);
912e3acd
JS		 6765
6766read_cfg_out:
6767 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6768 return rc;
3772a991
JS		 6769}
6770
6771/**
2fcee4bf 6772 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6773 * @phba: pointer to lpfc hba data structure.
6774 *
2fcee4bf
JS		 6775 * This routine is invoked to setup the port-side endian order when
6776 * the port if_type is 0. This routine has no function for other
6777 * if_types.
da0436e9
JS		 6778 *
6779 * Return codes
af901ca1 6780 * 0 - successful
25985edc 6781 * -ENOMEM - No available memory
d439d286 6782 * -EIO - The mailbox failed to complete successfully.
3772a991 6783 **/
da0436e9
JS		 6784static int
6785lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6786{
da0436e9 6787 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6788 uint32_t if_type, rc = 0;
da0436e9
JS		 6789 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6790 HOST_ENDIAN_HIGH_WORD1};
3772a991 6791
2fcee4bf
JS		 6792 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6793 switch (if_type) {
6794 case LPFC_SLI_INTF_IF_TYPE_0:
6795 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6796 GFP_KERNEL);
6797 if (!mboxq) {
6798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6799 "0492 Unable to allocate memory for "
6800 "issuing SLI_CONFIG_SPECIAL mailbox "
6801 "command\n");
6802 return -ENOMEM;
6803 }
3772a991 6804
2fcee4bf
JS		 6805 /*
6806 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6807 * two words to contain special data values and no other data.
6808 */
6809 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6810 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6811 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6812 if (rc != MBX_SUCCESS) {
6813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6814 "0493 SLI_CONFIG_SPECIAL mailbox "
6815 "failed with status x%x\n",
6816 rc);
6817 rc = -EIO;
6818 }
6819 mempool_free(mboxq, phba->mbox_mem_pool);
6820 break;
6821 case LPFC_SLI_INTF_IF_TYPE_2:
6822 case LPFC_SLI_INTF_IF_TYPE_1:
6823 default:
6824 break;
da0436e9 6825 }
da0436e9 6826 return rc;
3772a991
JS		 6827}
6828
6829/**
5350d872 6830 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
3772a991
JS		 6831 * @phba: pointer to lpfc hba data structure.
6832 *
5350d872
JS		 6833 * This routine is invoked to check the user settable queue counts for EQs and
6834 * CQs. after this routine is called the counts will be set to valid values that
6835 * adhere to the constraints of the system's interrupt vectors and the port's
6836 * queue resources.
da0436e9
JS		 6837 *
6838 * Return codes
af901ca1 6839 * 0 - successful
25985edc 6840 * -ENOMEM - No available memory
3772a991 6841 **/
da0436e9 6842static int
5350d872 6843lpfc_sli4_queue_verify(struct lpfc_hba *phba)
3772a991 6844{
67d12733 6845 int cfg_fcp_io_channel;
90695ee0
JS		 6846 uint32_t cpu;
6847 uint32_t i = 0;
1ba981fd 6848 int fof_vectors = phba->cfg_fof ? 1 : 0;
3772a991 6849
da0436e9 6850 /*
67d12733 6851 * Sanity check for configured queue parameters against the run-time
da0436e9
JS		 6852 * device parameters
6853 */
3772a991 6854
67d12733
JS		 6855 /* Sanity check on HBA EQ parameters */
6856 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6857
7bb03bbf
JS		 6858 /* It doesn't make sense to have more io channels then online CPUs */
6859 for_each_present_cpu(cpu) {
6860 if (cpu_online(cpu))
6861 i++;
90695ee0 6862 }
7bb03bbf 6863 phba->sli4_hba.num_online_cpu = i;
b246de17 6864 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
76fd07a6 6865 phba->sli4_hba.curr_disp_cpu = 0;
7bb03bbf 6866
90695ee0 6867 if (i < cfg_fcp_io_channel) {
82c3e9ba
JS		 6868 lpfc_printf_log(phba,
6869 KERN_ERR, LOG_INIT,
90695ee0 6870 "3188 Reducing IO channels to match number of "
7bb03bbf
JS		 6871 "online CPUs: from %d to %d\n",
6872 cfg_fcp_io_channel, i);
90695ee0
JS		 6873 cfg_fcp_io_channel = i;
6874 }
6875
1ba981fd 6876 if (cfg_fcp_io_channel + fof_vectors >
67d12733 6877 phba->sli4_hba.max_cfg_param.max_eq) {
82c3e9ba
JS		 6878 if (phba->sli4_hba.max_cfg_param.max_eq <
6879 LPFC_FCP_IO_CHAN_MIN) {
da0436e9
JS		 6880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6881 "2574 Not enough EQs (%d) from the "
6882 "pci function for supporting FCP "
6883 "EQs (%d)\n",
6884 phba->sli4_hba.max_cfg_param.max_eq,
67d12733 6885 phba->cfg_fcp_io_channel);
da0436e9
JS		 6886 goto out_error;
6887 }
82c3e9ba
JS		 6888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6889 "2575 Reducing IO channels to match number of "
6890 "available EQs: from %d to %d\n",
6891 cfg_fcp_io_channel,
6892 phba->sli4_hba.max_cfg_param.max_eq);
1ba981fd
JS		 6893 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
6894 fof_vectors;
da0436e9 6895 }
67d12733 6896
da0436e9 6897 /* The actual number of FCP event queues adopted */
67d12733 6898 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
3772a991 6899
da0436e9
JS		 6900 /* Get EQ depth from module parameter, fake the default for now */
6901 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6902 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6903
5350d872
JS		 6904 /* Get CQ depth from module parameter, fake the default for now */
6905 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6906 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6907
6908 return 0;
6909out_error:
6910 return -ENOMEM;
6911}
6912
6913/**
6914 * lpfc_sli4_queue_create - Create all the SLI4 queues
6915 * @phba: pointer to lpfc hba data structure.
6916 *
6917 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6918 * operation. For each SLI4 queue type, the parameters such as queue entry
6919 * count (queue depth) shall be taken from the module parameter. For now,
6920 * we just use some constant number as place holder.
6921 *
6922 * Return codes
4907cb7b 6923 * 0 - successful
5350d872
JS		 6924 * -ENOMEM - No availble memory
6925 * -EIO - The mailbox failed to complete successfully.
6926 **/
6927int
6928lpfc_sli4_queue_create(struct lpfc_hba *phba)
6929{
6930 struct lpfc_queue *qdesc;
67d12733 6931 int idx;
5350d872
JS		 6932
6933 /*
67d12733 6934 * Create HBA Record arrays.
5350d872 6935 */
67d12733
JS		 6936 if (!phba->cfg_fcp_io_channel)
6937 return -ERANGE;
5350d872 6938
67d12733
JS		 6939 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6940 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6941 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6942 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6943 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6944 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6945
6946 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
6947 phba->cfg_fcp_io_channel), GFP_KERNEL);
6948 if (!phba->sli4_hba.hba_eq) {
6949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6950 "2576 Failed allocate memory for "
6951 "fast-path EQ record array\n");
6952 goto out_error;
6953 }
6954
6955 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6956 phba->cfg_fcp_io_channel), GFP_KERNEL);
6957 if (!phba->sli4_hba.fcp_cq) {
da0436e9 6958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
67d12733
JS		 6959 "2577 Failed allocate memory for fast-path "
6960 "CQ record array\n");
6961 goto out_error;
6962 }
6963
6964 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6965 phba->cfg_fcp_io_channel), GFP_KERNEL);
6966 if (!phba->sli4_hba.fcp_wq) {
6967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6968 "2578 Failed allocate memory for fast-path "
6969 "WQ record array\n");
da0436e9
JS		 6970 goto out_error;
6971 }
da0436e9 6972
5350d872 6973 /*
67d12733
JS		 6974 * Since the first EQ can have multiple CQs associated with it,
6975 * this array is used to quickly see if we have a FCP fast-path
6976 * CQ match.
5350d872 6977 */
67d12733
JS		 6978 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6979 phba->cfg_fcp_io_channel), GFP_KERNEL);
6980 if (!phba->sli4_hba.fcp_cq_map) {
6981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6982 "2545 Failed allocate memory for fast-path "
6983 "CQ map\n");
6984 goto out_error;
da0436e9 6985 }
67d12733
JS		 6986
6987 /*
6988 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
6989 * how many EQs to create.
6990 */
6991 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6992
6993 /* Create EQs */
da0436e9
JS		 6994 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6995 phba->sli4_hba.eq_ecount);
6996 if (!qdesc) {
6997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
67d12733
JS		 6998 "0497 Failed allocate EQ (%d)\n", idx);
6999 goto out_error;
da0436e9 7000 }
67d12733
JS		 7001 phba->sli4_hba.hba_eq[idx] = qdesc;
7002
7003 /* Create Fast Path FCP CQs */
7004 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7005 phba->sli4_hba.cq_ecount);
7006 if (!qdesc) {
7007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7008 "0499 Failed allocate fast-path FCP "
7009 "CQ (%d)\n", idx);
7010 goto out_error;
7011 }
7012 phba->sli4_hba.fcp_cq[idx] = qdesc;
7013
7014 /* Create Fast Path FCP WQs */
7015 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7016 phba->sli4_hba.wq_ecount);
7017 if (!qdesc) {
7018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7019 "0503 Failed allocate fast-path FCP "
7020 "WQ (%d)\n", idx);
7021 goto out_error;
7022 }
7023 phba->sli4_hba.fcp_wq[idx] = qdesc;
da0436e9
JS		 7024 }
7025
67d12733 7026
da0436e9 7027 /*
67d12733 7028 * Create Slow Path Completion Queues (CQs)
da0436e9
JS		 7029 */
7030
da0436e9
JS		 7031 /* Create slow-path Mailbox Command Complete Queue */
7032 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7033 phba->sli4_hba.cq_ecount);
7034 if (!qdesc) {
7035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7036 "0500 Failed allocate slow-path mailbox CQ\n");
67d12733 7037 goto out_error;
da0436e9
JS		 7038 }
7039 phba->sli4_hba.mbx_cq = qdesc;
7040
7041 /* Create slow-path ELS Complete Queue */
7042 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7043 phba->sli4_hba.cq_ecount);
7044 if (!qdesc) {
7045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7046 "0501 Failed allocate slow-path ELS CQ\n");
67d12733 7047 goto out_error;
da0436e9
JS		 7048 }
7049 phba->sli4_hba.els_cq = qdesc;
7050
da0436e9 7051
5350d872 7052 /*
67d12733 7053 * Create Slow Path Work Queues (WQs)
5350d872 7054 */
da0436e9
JS		 7055
7056 /* Create Mailbox Command Queue */
da0436e9
JS		 7057
7058 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7059 phba->sli4_hba.mq_ecount);
7060 if (!qdesc) {
7061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7062 "0505 Failed allocate slow-path MQ\n");
67d12733 7063 goto out_error;
da0436e9
JS		 7064 }
7065 phba->sli4_hba.mbx_wq = qdesc;
7066
7067 /*
67d12733 7068 * Create ELS Work Queues
da0436e9 7069 */
da0436e9
JS		 7070
7071 /* Create slow-path ELS Work Queue */
7072 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7073 phba->sli4_hba.wq_ecount);
7074 if (!qdesc) {
7075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7076 "0504 Failed allocate slow-path ELS WQ\n");
67d12733 7077 goto out_error;
da0436e9
JS		 7078 }
7079 phba->sli4_hba.els_wq = qdesc;
7080
da0436e9
JS		 7081 /*
7082 * Create Receive Queue (RQ)
7083 */
da0436e9
JS		 7084
7085 /* Create Receive Queue for header */
7086 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7087 phba->sli4_hba.rq_ecount);
7088 if (!qdesc) {
7089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7090 "0506 Failed allocate receive HRQ\n");
67d12733 7091 goto out_error;
da0436e9
JS		 7092 }
7093 phba->sli4_hba.hdr_rq = qdesc;
7094
7095 /* Create Receive Queue for data */
7096 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7097 phba->sli4_hba.rq_ecount);
7098 if (!qdesc) {
7099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7100 "0507 Failed allocate receive DRQ\n");
67d12733 7101 goto out_error;
da0436e9
JS		 7102 }
7103 phba->sli4_hba.dat_rq = qdesc;
7104
1ba981fd
JS		 7105 /* Create the Queues needed for Flash Optimized Fabric operations */
7106 if (phba->cfg_fof)
7107 lpfc_fof_queue_create(phba);
da0436e9
JS		 7108 return 0;
7109
da0436e9 7110out_error:
67d12733 7111 lpfc_sli4_queue_destroy(phba);
da0436e9
JS		 7112 return -ENOMEM;
7113}
7114
7115/**
7116 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7117 * @phba: pointer to lpfc hba data structure.
7118 *
7119 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7120 * operation.
7121 *
7122 * Return codes
af901ca1 7123 * 0 - successful
25985edc 7124 * -ENOMEM - No available memory
d439d286 7125 * -EIO - The mailbox failed to complete successfully.
da0436e9 7126 **/
5350d872 7127void
da0436e9
JS		 7128lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7129{
67d12733
JS		 7130 int idx;
7131
1ba981fd
JS		 7132 if (phba->cfg_fof)
7133 lpfc_fof_queue_destroy(phba);
7134
67d12733
JS		 7135 if (phba->sli4_hba.hba_eq != NULL) {
7136 /* Release HBA event queue */
7137 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7138 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7139 lpfc_sli4_queue_free(
7140 phba->sli4_hba.hba_eq[idx]);
7141 phba->sli4_hba.hba_eq[idx] = NULL;
7142 }
7143 }
7144 kfree(phba->sli4_hba.hba_eq);
7145 phba->sli4_hba.hba_eq = NULL;
7146 }
7147
7148 if (phba->sli4_hba.fcp_cq != NULL) {
7149 /* Release FCP completion queue */
7150 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7151 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7152 lpfc_sli4_queue_free(
7153 phba->sli4_hba.fcp_cq[idx]);
7154 phba->sli4_hba.fcp_cq[idx] = NULL;
7155 }
7156 }
7157 kfree(phba->sli4_hba.fcp_cq);
7158 phba->sli4_hba.fcp_cq = NULL;
7159 }
7160
7161 if (phba->sli4_hba.fcp_wq != NULL) {
7162 /* Release FCP work queue */
7163 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7164 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7165 lpfc_sli4_queue_free(
7166 phba->sli4_hba.fcp_wq[idx]);
7167 phba->sli4_hba.fcp_wq[idx] = NULL;
7168 }
7169 }
7170 kfree(phba->sli4_hba.fcp_wq);
7171 phba->sli4_hba.fcp_wq = NULL;
7172 }
7173
7174 /* Release FCP CQ mapping array */
7175 if (phba->sli4_hba.fcp_cq_map != NULL) {
7176 kfree(phba->sli4_hba.fcp_cq_map);
7177 phba->sli4_hba.fcp_cq_map = NULL;
7178 }
da0436e9
JS		 7179
7180 /* Release mailbox command work queue */
67d12733
JS		 7181 if (phba->sli4_hba.mbx_wq != NULL) {
7182 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7183 phba->sli4_hba.mbx_wq = NULL;
7184 }
da0436e9
JS		 7185
7186 /* Release ELS work queue */
67d12733
JS		 7187 if (phba->sli4_hba.els_wq != NULL) {
7188 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7189 phba->sli4_hba.els_wq = NULL;
7190 }
da0436e9
JS		 7191
7192 /* Release unsolicited receive queue */
67d12733
JS		 7193 if (phba->sli4_hba.hdr_rq != NULL) {
7194 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7195 phba->sli4_hba.hdr_rq = NULL;
7196 }
7197 if (phba->sli4_hba.dat_rq != NULL) {
7198 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7199 phba->sli4_hba.dat_rq = NULL;
7200 }
da0436e9 7201
da0436e9 7202 /* Release ELS complete queue */
67d12733
JS		 7203 if (phba->sli4_hba.els_cq != NULL) {
7204 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7205 phba->sli4_hba.els_cq = NULL;
7206 }
da0436e9
JS		 7207
7208 /* Release mailbox command complete queue */
67d12733
JS		 7209 if (phba->sli4_hba.mbx_cq != NULL) {
7210 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7211 phba->sli4_hba.mbx_cq = NULL;
7212 }
da0436e9
JS		 7213
7214 return;
7215}
7216
7217/**
7218 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7219 * @phba: pointer to lpfc hba data structure.
7220 *
7221 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7222 * operation.
7223 *
7224 * Return codes
af901ca1 7225 * 0 - successful
25985edc 7226 * -ENOMEM - No available memory
d439d286 7227 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7228 **/
7229int
7230lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7231{
2a76a283
JS		 7232 struct lpfc_sli *psli = &phba->sli;
7233 struct lpfc_sli_ring *pring;
da0436e9
JS		 7234 int rc = -ENOMEM;
7235 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7236 int fcp_cq_index = 0;
962bc51b
JS		 7237 uint32_t shdr_status, shdr_add_status;
7238 union lpfc_sli4_cfg_shdr *shdr;
7239 LPFC_MBOXQ_t *mboxq;
7240 uint32_t length;
7241
7242 /* Check for dual-ULP support */
7243 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7244 if (!mboxq) {
7245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7246 "3249 Unable to allocate memory for "
7247 "QUERY_FW_CFG mailbox command\n");
7248 return -ENOMEM;
7249 }
7250 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7251 sizeof(struct lpfc_sli4_cfg_mhdr));
7252 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7253 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7254 length, LPFC_SLI4_MBX_EMBED);
7255
7256 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7257
7258 shdr = (union lpfc_sli4_cfg_shdr *)
7259 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7260 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7261 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7262 if (shdr_status || shdr_add_status || rc) {
7263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264 "3250 QUERY_FW_CFG mailbox failed with status "
7265 "x%x add_status x%x, mbx status x%x\n",
7266 shdr_status, shdr_add_status, rc);
7267 if (rc != MBX_TIMEOUT)
7268 mempool_free(mboxq, phba->mbox_mem_pool);
7269 rc = -ENXIO;
7270 goto out_error;
7271 }
7272
7273 phba->sli4_hba.fw_func_mode =
7274 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7275 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7276 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7277 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7278 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7279 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7280 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7281
7282 if (rc != MBX_TIMEOUT)
7283 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 7284
7285 /*
67d12733 7286 * Set up HBA Event Queues (EQs)
da0436e9
JS		 7287 */
7288
67d12733
JS		 7289 /* Set up HBA event queue */
7290 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
2e90f4b5
JS		 7291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7292 "3147 Fast-path EQs not allocated\n");
1b51197d 7293 rc = -ENOMEM;
67d12733 7294 goto out_error;
2e90f4b5 7295 }
67d12733
JS		 7296 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7297 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
da0436e9
JS		 7298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7299 "0522 Fast-path EQ (%d) not "
7300 "allocated\n", fcp_eqidx);
1b51197d 7301 rc = -ENOMEM;
67d12733 7302 goto out_destroy_hba_eq;
da0436e9 7303 }
67d12733 7304 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
bf8dae83 7305 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
da0436e9
JS		 7306 if (rc) {
7307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7308 "0523 Failed setup of fast-path EQ "
7309 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
67d12733 7310 goto out_destroy_hba_eq;
da0436e9
JS		 7311 }
7312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
67d12733 7313 "2584 HBA EQ setup: "
da0436e9 7314 "queue[%d]-id=%d\n", fcp_eqidx,
67d12733 7315 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
da0436e9
JS		 7316 }
7317
67d12733
JS		 7318 /* Set up fast-path FCP Response Complete Queue */
7319 if (!phba->sli4_hba.fcp_cq) {
7320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7321 "3148 Fast-path FCP CQ array not "
7322 "allocated\n");
7323 rc = -ENOMEM;
7324 goto out_destroy_hba_eq;
7325 }
7326
7327 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7328 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7330 "0526 Fast-path FCP CQ (%d) not "
7331 "allocated\n", fcp_cqidx);
7332 rc = -ENOMEM;
7333 goto out_destroy_fcp_cq;
7334 }
7335 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7336 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7337 if (rc) {
7338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7339 "0527 Failed setup of fast-path FCP "
7340 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7341 goto out_destroy_fcp_cq;
7342 }
7343
7344 /* Setup fcp_cq_map for fast lookup */
7345 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7346 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7347
7348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7349 "2588 FCP CQ setup: cq[%d]-id=%d, "
7350 "parent seq[%d]-id=%d\n",
7351 fcp_cqidx,
7352 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7353 fcp_cqidx,
7354 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7355 }
7356
7357 /* Set up fast-path FCP Work Queue */
7358 if (!phba->sli4_hba.fcp_wq) {
7359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7360 "3149 Fast-path FCP WQ array not "
7361 "allocated\n");
7362 rc = -ENOMEM;
7363 goto out_destroy_fcp_cq;
7364 }
7365
7366 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7367 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7369 "0534 Fast-path FCP WQ (%d) not "
7370 "allocated\n", fcp_wqidx);
7371 rc = -ENOMEM;
7372 goto out_destroy_fcp_wq;
7373 }
7374 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7375 phba->sli4_hba.fcp_cq[fcp_wqidx],
7376 LPFC_FCP);
7377 if (rc) {
7378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7379 "0535 Failed setup of fast-path FCP "
7380 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7381 goto out_destroy_fcp_wq;
7382 }
7383
7384 /* Bind this WQ to the next FCP ring */
7385 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7386 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7387 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7388
7389 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7390 "2591 FCP WQ setup: wq[%d]-id=%d, "
7391 "parent cq[%d]-id=%d\n",
7392 fcp_wqidx,
7393 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7394 fcp_cq_index,
7395 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7396 }
da0436e9
JS		 7397 /*
7398 * Set up Complete Queues (CQs)
7399 */
7400
7401 /* Set up slow-path MBOX Complete Queue as the first CQ */
7402 if (!phba->sli4_hba.mbx_cq) {
7403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7404 "0528 Mailbox CQ not allocated\n");
1b51197d 7405 rc = -ENOMEM;
67d12733 7406 goto out_destroy_fcp_wq;
da0436e9 7407 }
67d12733
JS		 7408 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7409 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
da0436e9
JS		 7410 if (rc) {
7411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7412 "0529 Failed setup of slow-path mailbox CQ: "
7413 "rc = 0x%x\n", rc);
67d12733 7414 goto out_destroy_fcp_wq;
da0436e9
JS		 7415 }
7416 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7417 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7418 phba->sli4_hba.mbx_cq->queue_id,
67d12733 7419 phba->sli4_hba.hba_eq[0]->queue_id);
da0436e9
JS		 7420
7421 /* Set up slow-path ELS Complete Queue */
7422 if (!phba->sli4_hba.els_cq) {
7423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7424 "0530 ELS CQ not allocated\n");
1b51197d 7425 rc = -ENOMEM;
da0436e9
JS		 7426 goto out_destroy_mbx_cq;
7427 }
67d12733
JS		 7428 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7429 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
da0436e9
JS		 7430 if (rc) {
7431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7432 "0531 Failed setup of slow-path ELS CQ: "
7433 "rc = 0x%x\n", rc);
7434 goto out_destroy_mbx_cq;
7435 }
7436 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7437 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7438 phba->sli4_hba.els_cq->queue_id,
67d12733 7439 phba->sli4_hba.hba_eq[0]->queue_id);
da0436e9
JS		 7440
7441 /*
7442 * Set up all the Work Queues (WQs)
7443 */
7444
7445 /* Set up Mailbox Command Queue */
7446 if (!phba->sli4_hba.mbx_wq) {
7447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7448 "0538 Slow-path MQ not allocated\n");
1b51197d 7449 rc = -ENOMEM;
67d12733 7450 goto out_destroy_els_cq;
da0436e9
JS		 7451 }
7452 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7453 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7454 if (rc) {
7455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7456 "0539 Failed setup of slow-path MQ: "
7457 "rc = 0x%x\n", rc);
67d12733 7458 goto out_destroy_els_cq;
da0436e9
JS		 7459 }
7460 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7461 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7462 phba->sli4_hba.mbx_wq->queue_id,
7463 phba->sli4_hba.mbx_cq->queue_id);
7464
7465 /* Set up slow-path ELS Work Queue */
7466 if (!phba->sli4_hba.els_wq) {
7467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7468 "0536 Slow-path ELS WQ not allocated\n");
1b51197d 7469 rc = -ENOMEM;
da0436e9
JS		 7470 goto out_destroy_mbx_wq;
7471 }
7472 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7473 phba->sli4_hba.els_cq, LPFC_ELS);
7474 if (rc) {
7475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7476 "0537 Failed setup of slow-path ELS WQ: "
7477 "rc = 0x%x\n", rc);
7478 goto out_destroy_mbx_wq;
7479 }
2a76a283
JS		 7480
7481 /* Bind this WQ to the ELS ring */
7482 pring = &psli->ring[LPFC_ELS_RING];
7483 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7484 phba->sli4_hba.els_cq->pring = pring;
7485
da0436e9
JS		 7486 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7487 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7488 phba->sli4_hba.els_wq->queue_id,
7489 phba->sli4_hba.els_cq->queue_id);
7490
da0436e9
JS		 7491 /*
7492 * Create Receive Queue (RQ)
7493 */
7494 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7496 "0540 Receive Queue not allocated\n");
1b51197d 7497 rc = -ENOMEM;
67d12733 7498 goto out_destroy_els_wq;
da0436e9 7499 }
73d91e50
JS		 7500
7501 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7502 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7503
da0436e9 7504 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 7505 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 7506 if (rc) {
7507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7508 "0541 Failed setup of Receive Queue: "
7509 "rc = 0x%x\n", rc);
7510 goto out_destroy_fcp_wq;
7511 }
73d91e50 7512
da0436e9
JS		 7513 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7514 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7515 "parent cq-id=%d\n",
7516 phba->sli4_hba.hdr_rq->queue_id,
7517 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 7518 phba->sli4_hba.els_cq->queue_id);
1ba981fd
JS		 7519
7520 if (phba->cfg_fof) {
7521 rc = lpfc_fof_queue_setup(phba);
7522 if (rc) {
7523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7524 "0549 Failed setup of FOF Queues: "
7525 "rc = 0x%x\n", rc);
7526 goto out_destroy_els_rq;
7527 }
7528 }
da0436e9
JS		 7529 return 0;
7530
1ba981fd
JS		 7531out_destroy_els_rq:
7532 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
2e90f4b5 7533out_destroy_els_wq:
da0436e9
JS		 7534 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7535out_destroy_mbx_wq:
7536 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
2e90f4b5 7537out_destroy_els_cq:
da0436e9
JS		 7538 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7539out_destroy_mbx_cq:
7540 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
67d12733
JS		 7541out_destroy_fcp_wq:
7542 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7543 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7544out_destroy_fcp_cq:
7545 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7546 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7547out_destroy_hba_eq:
da0436e9 7548 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
67d12733 7549 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
da0436e9
JS		 7550out_error:
7551 return rc;
7552}
7553
7554/**
7555 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7556 * @phba: pointer to lpfc hba data structure.
7557 *
7558 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7559 * operation.
7560 *
7561 * Return codes
af901ca1 7562 * 0 - successful
25985edc 7563 * -ENOMEM - No available memory
d439d286 7564 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7565 **/
7566void
7567lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7568{
7569 int fcp_qidx;
7570
1ba981fd
JS		 7571 /* Unset the queues created for Flash Optimized Fabric operations */
7572 if (phba->cfg_fof)
7573 lpfc_fof_queue_destroy(phba);
da0436e9
JS		 7574 /* Unset mailbox command work queue */
7575 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7576 /* Unset ELS work queue */
7577 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7578 /* Unset unsolicited receive queue */
7579 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7580 /* Unset FCP work queue */
67d12733
JS		 7581 if (phba->sli4_hba.fcp_wq) {
7582 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7583 fcp_qidx++)
7584 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7585 }
da0436e9
JS		 7586 /* Unset mailbox command complete queue */
7587 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7588 /* Unset ELS complete queue */
7589 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9 7590 /* Unset FCP response complete queue */
2e90f4b5 7591 if (phba->sli4_hba.fcp_cq) {
67d12733
JS		 7592 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7593 fcp_qidx++)
2e90f4b5 7594 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
2e90f4b5 7595 }
da0436e9 7596 /* Unset fast-path event queue */
67d12733
JS		 7597 if (phba->sli4_hba.hba_eq) {
7598 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
2e90f4b5 7599 fcp_qidx++)
67d12733 7600 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
2e90f4b5 7601 }
da0436e9
JS		 7602}
7603
7604/**
7605 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7606 * @phba: pointer to lpfc hba data structure.
7607 *
7608 * This routine is invoked to allocate and set up a pool of completion queue
7609 * events. The body of the completion queue event is a completion queue entry
7610 * CQE. For now, this pool is used for the interrupt service routine to queue
7611 * the following HBA completion queue events for the worker thread to process:
7612 * - Mailbox asynchronous events
7613 * - Receive queue completion unsolicited events
7614 * Later, this can be used for all the slow-path events.
7615 *
7616 * Return codes
af901ca1 7617 * 0 - successful
25985edc 7618 * -ENOMEM - No available memory
da0436e9
JS		 7619 **/
7620static int
7621lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7622{
7623 struct lpfc_cq_event *cq_event;
7624 int i;
7625
7626 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7627 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7628 if (!cq_event)
7629 goto out_pool_create_fail;
7630 list_add_tail(&cq_event->list,
7631 &phba->sli4_hba.sp_cqe_event_pool);
7632 }
7633 return 0;
7634
7635out_pool_create_fail:
7636 lpfc_sli4_cq_event_pool_destroy(phba);
7637 return -ENOMEM;
7638}
7639
7640/**
7641 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7642 * @phba: pointer to lpfc hba data structure.
7643 *
7644 * This routine is invoked to free the pool of completion queue events at
7645 * driver unload time. Note that, it is the responsibility of the driver
7646 * cleanup routine to free all the outstanding completion-queue events
7647 * allocated from this pool back into the pool before invoking this routine
7648 * to destroy the pool.
7649 **/
7650static void
7651lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7652{
7653 struct lpfc_cq_event *cq_event, *next_cq_event;
7654
7655 list_for_each_entry_safe(cq_event, next_cq_event,
7656 &phba->sli4_hba.sp_cqe_event_pool, list) {
7657 list_del(&cq_event->list);
7658 kfree(cq_event);
7659 }
7660}
7661
7662/**
7663 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7664 * @phba: pointer to lpfc hba data structure.
7665 *
7666 * This routine is the lock free version of the API invoked to allocate a
7667 * completion-queue event from the free pool.
7668 *
7669 * Return: Pointer to the newly allocated completion-queue event if successful
7670 * NULL otherwise.
7671 **/
7672struct lpfc_cq_event *
7673__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7674{
7675 struct lpfc_cq_event *cq_event = NULL;
7676
7677 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7678 struct lpfc_cq_event, list);
7679 return cq_event;
7680}
7681
7682/**
7683 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7684 * @phba: pointer to lpfc hba data structure.
7685 *
7686 * This routine is the lock version of the API invoked to allocate a
7687 * completion-queue event from the free pool.
7688 *
7689 * Return: Pointer to the newly allocated completion-queue event if successful
7690 * NULL otherwise.
7691 **/
7692struct lpfc_cq_event *
7693lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7694{
7695 struct lpfc_cq_event *cq_event;
7696 unsigned long iflags;
7697
7698 spin_lock_irqsave(&phba->hbalock, iflags);
7699 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7700 spin_unlock_irqrestore(&phba->hbalock, iflags);
7701 return cq_event;
7702}
7703
7704/**
7705 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7706 * @phba: pointer to lpfc hba data structure.
7707 * @cq_event: pointer to the completion queue event to be freed.
7708 *
7709 * This routine is the lock free version of the API invoked to release a
7710 * completion-queue event back into the free pool.
7711 **/
7712void
7713__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7714 struct lpfc_cq_event *cq_event)
7715{
7716 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7717}
7718
7719/**
7720 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7721 * @phba: pointer to lpfc hba data structure.
7722 * @cq_event: pointer to the completion queue event to be freed.
7723 *
7724 * This routine is the lock version of the API invoked to release a
7725 * completion-queue event back into the free pool.
7726 **/
7727void
7728lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7729 struct lpfc_cq_event *cq_event)
7730{
7731 unsigned long iflags;
7732 spin_lock_irqsave(&phba->hbalock, iflags);
7733 __lpfc_sli4_cq_event_release(phba, cq_event);
7734 spin_unlock_irqrestore(&phba->hbalock, iflags);
7735}
7736
7737/**
7738 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7739 * @phba: pointer to lpfc hba data structure.
7740 *
7741 * This routine is to free all the pending completion-queue events to the
7742 * back into the free pool for device reset.
7743 **/
7744static void
7745lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7746{
7747 LIST_HEAD(cqelist);
7748 struct lpfc_cq_event *cqe;
7749 unsigned long iflags;
7750
7751 /* Retrieve all the pending WCQEs from pending WCQE lists */
7752 spin_lock_irqsave(&phba->hbalock, iflags);
7753 /* Pending FCP XRI abort events */
7754 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7755 &cqelist);
7756 /* Pending ELS XRI abort events */
7757 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7758 &cqelist);
7759 /* Pending asynnc events */
7760 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7761 &cqelist);
7762 spin_unlock_irqrestore(&phba->hbalock, iflags);
7763
7764 while (!list_empty(&cqelist)) {
7765 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7766 lpfc_sli4_cq_event_release(phba, cqe);
7767 }
7768}
7769
7770/**
7771 * lpfc_pci_function_reset - Reset pci function.
7772 * @phba: pointer to lpfc hba data structure.
7773 *
7774 * This routine is invoked to request a PCI function reset. It will destroys
7775 * all resources assigned to the PCI function which originates this request.
7776 *
7777 * Return codes
af901ca1 7778 * 0 - successful
25985edc 7779 * -ENOMEM - No available memory
d439d286 7780 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7781 **/
7782int
7783lpfc_pci_function_reset(struct lpfc_hba *phba)
7784{
7785 LPFC_MBOXQ_t *mboxq;
2fcee4bf 7786 uint32_t rc = 0, if_type;
da0436e9 7787 uint32_t shdr_status, shdr_add_status;
2fcee4bf 7788 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 7789 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 7790 struct lpfc_register reg_data;
2b81f942 7791 uint16_t devid;
da0436e9 7792
2fcee4bf
JS		 7793 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7794 switch (if_type) {
7795 case LPFC_SLI_INTF_IF_TYPE_0:
7796 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7797 GFP_KERNEL);
7798 if (!mboxq) {
7799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7800 "0494 Unable to allocate memory for "
7801 "issuing SLI_FUNCTION_RESET mailbox "
7802 "command\n");
7803 return -ENOMEM;
7804 }
da0436e9 7805
2fcee4bf
JS		 7806 /* Setup PCI function reset mailbox-ioctl command */
7807 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7808 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7809 LPFC_SLI4_MBX_EMBED);
7810 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7811 shdr = (union lpfc_sli4_cfg_shdr *)
7812 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7813 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7814 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7815 &shdr->response);
7816 if (rc != MBX_TIMEOUT)
7817 mempool_free(mboxq, phba->mbox_mem_pool);
7818 if (shdr_status || shdr_add_status || rc) {
7819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7820 "0495 SLI_FUNCTION_RESET mailbox "
7821 "failed with status x%x add_status x%x,"
7822 " mbx status x%x\n",
7823 shdr_status, shdr_add_status, rc);
7824 rc = -ENXIO;
7825 }
7826 break;
7827 case LPFC_SLI_INTF_IF_TYPE_2:
7828 for (num_resets = 0;
7829 num_resets < MAX_IF_TYPE_2_RESETS;
7830 num_resets++) {
7831 reg_data.word0 = 0;
7832 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7833 LPFC_SLIPORT_LITTLE_ENDIAN);
7834 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7835 LPFC_SLIPORT_INIT_PORT);
7836 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7837 CTRLregaddr);
8fcb8acd 7838 /* flush */
2b81f942
JS		 7839 pci_read_config_word(phba->pcidev,
7840 PCI_DEVICE_ID, &devid);
2fcee4bf
JS		 7841 /*
7842 * Poll the Port Status Register and wait for RDY for
7843 * up to 10 seconds. If the port doesn't respond, treat
7844 * it as an error. If the port responds with RN, start
7845 * the loop again.
7846 */
7847 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
73d91e50 7848 msleep(10);
9940b97b
JS		 7849 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7850 STATUSregaddr, &reg_data.word0)) {
7851 rc = -ENODEV;
73d91e50 7852 goto out;
9940b97b 7853 }
6b5151fd 7854 if (bf_get(lpfc_sliport_status_rn, &reg_data))
2fcee4bf 7855 reset_again++;
6b5151fd 7856 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
2fcee4bf 7857 break;
2fcee4bf
JS		 7858 }
7859
7860 /*
7861 * If the port responds to the init request with
7862 * reset needed, delay for a bit and restart the loop.
7863 */
6b5151fd 7864 if (reset_again && (rdy_chk < 1000)) {
2fcee4bf
JS		 7865 msleep(10);
7866 reset_again = 0;
7867 continue;
7868 }
7869
7870 /* Detect any port errors. */
2fcee4bf
JS		 7871 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7872 (rdy_chk >= 1000)) {
7873 phba->work_status[0] = readl(
7874 phba->sli4_hba.u.if_type2.ERR1regaddr);
7875 phba->work_status[1] = readl(
7876 phba->sli4_hba.u.if_type2.ERR2regaddr);
7877 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd 7878 "2890 Port error detected during port "
8a9d2e80
JS		 7879 "reset(%d): wait_tmo:%d ms, "
7880 "port status reg 0x%x, "
2fcee4bf 7881 "error 1=0x%x, error 2=0x%x\n",
8a9d2e80
JS		 7882 num_resets, rdy_chk*10,
7883 reg_data.word0,
2fcee4bf
JS		 7884 phba->work_status[0],
7885 phba->work_status[1]);
7886 rc = -ENODEV;
7887 }
7888
7889 /*
7890 * Terminate the outer loop provided the Port indicated
7891 * ready within 10 seconds.
7892 */
7893 if (rdy_chk < 1000)
7894 break;
7895 }
0558056c
JS		 7896 /* delay driver action following IF_TYPE_2 function reset */
7897 msleep(100);
2fcee4bf
JS		 7898 break;
7899 case LPFC_SLI_INTF_IF_TYPE_1:
7900 default:
7901 break;
da0436e9 7902 }
2fcee4bf 7903
73d91e50 7904out:
2fcee4bf 7905 /* Catch the not-ready port failure after a port reset. */
229adb0e
JS		 7906 if (num_resets >= MAX_IF_TYPE_2_RESETS) {
7907 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7908 "3317 HBA not functional: IP Reset Failed "
7909 "after (%d) retries, try: "
7910 "echo fw_reset > board_mode\n", num_resets);
2fcee4bf 7911 rc = -ENODEV;
229adb0e 7912 }
2fcee4bf 7913
da0436e9
JS		 7914 return rc;
7915}
7916
da0436e9
JS		 7917/**
7918 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7919 * @phba: pointer to lpfc hba data structure.
7920 *
7921 * This routine is invoked to set up the PCI device memory space for device
7922 * with SLI-4 interface spec.
7923 *
7924 * Return codes
af901ca1 7925 * 0 - successful
da0436e9
JS		 7926 * other values - error
7927 **/
7928static int
7929lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7930{
7931 struct pci_dev *pdev;
7932 unsigned long bar0map_len, bar1map_len, bar2map_len;
7933 int error = -ENODEV;
2fcee4bf 7934 uint32_t if_type;
da0436e9
JS		 7935
7936 /* Obtain PCI device reference */
7937 if (!phba->pcidev)
7938 return error;
7939 else
7940 pdev = phba->pcidev;
7941
7942 /* Set the device DMA mask size */
8e68597d
MR		 7943 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7944 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7945 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7946 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7947 return error;
8e68597d
MR		 7948 }
7949 }
da0436e9 7950
2fcee4bf
JS		 7951 /*
7952 * The BARs and register set definitions and offset locations are
7953 * dependent on the if_type.
7954 */
7955 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7956 &phba->sli4_hba.sli_intf.word0)) {
7957 return error;
7958 }
7959
7960 /* There is no SLI3 failback for SLI4 devices. */
7961 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7962 LPFC_SLI_INTF_VALID) {
7963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7964 "2894 SLI_INTF reg contents invalid "
7965 "sli_intf reg 0x%x\n",
7966 phba->sli4_hba.sli_intf.word0);
7967 return error;
7968 }
7969
7970 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7971 /*
7972 * Get the bus address of SLI4 device Bar regions and the
7973 * number of bytes required by each mapping. The mapping of the
7974 * particular PCI BARs regions is dependent on the type of
7975 * SLI4 device.
da0436e9 7976 */
f5ca6f2e
JS		 7977 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
7978 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
7979 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
2fcee4bf
JS		 7980
7981 /*
7982 * Map SLI4 PCI Config Space Register base to a kernel virtual
7983 * addr
7984 */
7985 phba->sli4_hba.conf_regs_memmap_p =
7986 ioremap(phba->pci_bar0_map, bar0map_len);
7987 if (!phba->sli4_hba.conf_regs_memmap_p) {
7988 dev_printk(KERN_ERR, &pdev->dev,
7989 "ioremap failed for SLI4 PCI config "
7990 "registers.\n");
7991 goto out;
7992 }
f5ca6f2e 7993 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
2fcee4bf
JS		 7994 /* Set up BAR0 PCI config space register memory map */
7995 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7996 } else {
7997 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7998 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7999 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8000 dev_printk(KERN_ERR, &pdev->dev,
8001 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8002 goto out;
8003 }
8004 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 8005 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 8006 if (!phba->sli4_hba.conf_regs_memmap_p) {
8007 dev_printk(KERN_ERR, &pdev->dev,
8008 "ioremap failed for SLI4 PCI config "
8009 "registers.\n");
8010 goto out;
8011 }
8012 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 8013 }
8014
c31098ce 8015 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
f5ca6f2e 8016 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
2fcee4bf
JS		 8017 /*
8018 * Map SLI4 if type 0 HBA Control Register base to a kernel
8019 * virtual address and setup the registers.
8020 */
f5ca6f2e
JS		 8021 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8022 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
2fcee4bf 8023 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 8024 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 8025 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8026 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 8027 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 8028 goto out_iounmap_conf;
8029 }
f5ca6f2e 8030 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
2fcee4bf 8031 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 8032 }
8033
c31098ce 8034 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
f5ca6f2e 8035 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
2fcee4bf
JS		 8036 /*
8037 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8038 * virtual address and setup the registers.
8039 */
f5ca6f2e
JS		 8040 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8041 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
2fcee4bf 8042 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 8043 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 8044 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8045 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 8046 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 8047 goto out_iounmap_ctrl;
8048 }
f5ca6f2e 8049 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
2fcee4bf
JS		 8050 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8051 if (error)
8052 goto out_iounmap_all;
da0436e9
JS		 8053 }
8054
da0436e9
JS		 8055 return 0;
8056
8057out_iounmap_all:
8058 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8059out_iounmap_ctrl:
8060 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8061out_iounmap_conf:
8062 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8063out:
8064 return error;
8065}
8066
8067/**
8068 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8069 * @phba: pointer to lpfc hba data structure.
8070 *
8071 * This routine is invoked to unset the PCI device memory space for device
8072 * with SLI-4 interface spec.
8073 **/
8074static void
8075lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8076{
2e90f4b5
JS		 8077 uint32_t if_type;
8078 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
da0436e9 8079
2e90f4b5
JS		 8080 switch (if_type) {
8081 case LPFC_SLI_INTF_IF_TYPE_0:
8082 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8083 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8084 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8085 break;
8086 case LPFC_SLI_INTF_IF_TYPE_2:
8087 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8088 break;
8089 case LPFC_SLI_INTF_IF_TYPE_1:
8090 default:
8091 dev_printk(KERN_ERR, &phba->pcidev->dev,
8092 "FATAL - unsupported SLI4 interface type - %d\n",
8093 if_type);
8094 break;
8095 }
da0436e9
JS		 8096}
8097
8098/**
8099 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8100 * @phba: pointer to lpfc hba data structure.
8101 *
8102 * This routine is invoked to enable the MSI-X interrupt vectors to device
8103 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8104 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8105 * invoked, enables either all or nothing, depending on the current
8106 * availability of PCI vector resources. The device driver is responsible
8107 * for calling the individual request_irq() to register each MSI-X vector
8108 * with a interrupt handler, which is done in this function. Note that
8109 * later when device is unloading, the driver should always call free_irq()
8110 * on all MSI-X vectors it has done request_irq() on before calling
8111 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8112 * will be left with MSI-X enabled and leaks its vectors.
8113 *
8114 * Return codes
af901ca1 8115 * 0 - successful
da0436e9
JS		 8116 * other values - error
8117 **/
8118static int
8119lpfc_sli_enable_msix(struct lpfc_hba *phba)
8120{
8121 int rc, i;
8122 LPFC_MBOXQ_t *pmb;
8123
8124 /* Set up MSI-X multi-message vectors */
8125 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8126 phba->msix_entries[i].entry = i;
8127
8128 /* Configure MSI-X capability structure */
8129 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8130 ARRAY_SIZE(phba->msix_entries));
8131 if (rc) {
8132 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8133 "0420 PCI enable MSI-X failed (%d)\n", rc);
8134 goto msi_fail_out;
8135 }
8136 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8137 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8138 "0477 MSI-X entry[%d]: vector=x%x "
8139 "message=%d\n", i,
8140 phba->msix_entries[i].vector,
8141 phba->msix_entries[i].entry);
8142 /*
8143 * Assign MSI-X vectors to interrupt handlers
8144 */
8145
8146 /* vector-0 is associated to slow-path handler */
8147 rc = request_irq(phba->msix_entries[0].vector,
8148 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8149 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8150 if (rc) {
8151 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8152 "0421 MSI-X slow-path request_irq failed "
8153 "(%d)\n", rc);
8154 goto msi_fail_out;
8155 }
8156
8157 /* vector-1 is associated to fast-path handler */
8158 rc = request_irq(phba->msix_entries[1].vector,
8159 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8160 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8161
8162 if (rc) {
8163 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8164 "0429 MSI-X fast-path request_irq failed "
8165 "(%d)\n", rc);
8166 goto irq_fail_out;
8167 }
8168
8169 /*
8170 * Configure HBA MSI-X attention conditions to messages
8171 */
8172 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8173
8174 if (!pmb) {
8175 rc = -ENOMEM;
8176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8177 "0474 Unable to allocate memory for issuing "
8178 "MBOX_CONFIG_MSI command\n");
8179 goto mem_fail_out;
8180 }
8181 rc = lpfc_config_msi(phba, pmb);
8182 if (rc)
8183 goto mbx_fail_out;
8184 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8185 if (rc != MBX_SUCCESS) {
8186 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8187 "0351 Config MSI mailbox command failed, "
8188 "mbxCmd x%x, mbxStatus x%x\n",
8189 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8190 goto mbx_fail_out;
8191 }
8192
8193 /* Free memory allocated for mailbox command */
8194 mempool_free(pmb, phba->mbox_mem_pool);
8195 return rc;
8196
8197mbx_fail_out:
8198 /* Free memory allocated for mailbox command */
8199 mempool_free(pmb, phba->mbox_mem_pool);
8200
8201mem_fail_out:
8202 /* free the irq already requested */
8203 free_irq(phba->msix_entries[1].vector, phba);
8204
8205irq_fail_out:
8206 /* free the irq already requested */
8207 free_irq(phba->msix_entries[0].vector, phba);
8208
8209msi_fail_out:
8210 /* Unconfigure MSI-X capability structure */
8211 pci_disable_msix(phba->pcidev);
8212 return rc;
8213}
8214
8215/**
8216 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8217 * @phba: pointer to lpfc hba data structure.
8218 *
8219 * This routine is invoked to release the MSI-X vectors and then disable the
8220 * MSI-X interrupt mode to device with SLI-3 interface spec.
8221 **/
8222static void
8223lpfc_sli_disable_msix(struct lpfc_hba *phba)
8224{
8225 int i;
8226
8227 /* Free up MSI-X multi-message vectors */
8228 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8229 free_irq(phba->msix_entries[i].vector, phba);
8230 /* Disable MSI-X */
8231 pci_disable_msix(phba->pcidev);
8232
8233 return;
8234}
8235
8236/**
8237 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8238 * @phba: pointer to lpfc hba data structure.
8239 *
8240 * This routine is invoked to enable the MSI interrupt mode to device with
8241 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8242 * enable the MSI vector. The device driver is responsible for calling the
8243 * request_irq() to register MSI vector with a interrupt the handler, which
8244 * is done in this function.
8245 *
8246 * Return codes
af901ca1 8247 * 0 - successful
da0436e9
JS		 8248 * other values - error
8249 */
8250static int
8251lpfc_sli_enable_msi(struct lpfc_hba *phba)
8252{
8253 int rc;
8254
8255 rc = pci_enable_msi(phba->pcidev);
8256 if (!rc)
8257 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8258 "0462 PCI enable MSI mode success.\n");
8259 else {
8260 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8261 "0471 PCI enable MSI mode failed (%d)\n", rc);
8262 return rc;
8263 }
8264
8265 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8266 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8267 if (rc) {
8268 pci_disable_msi(phba->pcidev);
8269 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8270 "0478 MSI request_irq failed (%d)\n", rc);
8271 }
8272 return rc;
8273}
8274
8275/**
8276 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8277 * @phba: pointer to lpfc hba data structure.
8278 *
8279 * This routine is invoked to disable the MSI interrupt mode to device with
8280 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8281 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8282 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8283 * its vector.
8284 */
8285static void
8286lpfc_sli_disable_msi(struct lpfc_hba *phba)
8287{
8288 free_irq(phba->pcidev->irq, phba);
8289 pci_disable_msi(phba->pcidev);
8290 return;
8291}
8292
8293/**
8294 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8295 * @phba: pointer to lpfc hba data structure.
8296 *
8297 * This routine is invoked to enable device interrupt and associate driver's
8298 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8299 * spec. Depends on the interrupt mode configured to the driver, the driver
8300 * will try to fallback from the configured interrupt mode to an interrupt
8301 * mode which is supported by the platform, kernel, and device in the order
8302 * of:
8303 * MSI-X -> MSI -> IRQ.
8304 *
8305 * Return codes
af901ca1 8306 * 0 - successful
da0436e9
JS		 8307 * other values - error
8308 **/
8309static uint32_t
8310lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8311{
8312 uint32_t intr_mode = LPFC_INTR_ERROR;
8313 int retval;
8314
8315 if (cfg_mode == 2) {
8316 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8317 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8318 if (!retval) {
8319 /* Now, try to enable MSI-X interrupt mode */
8320 retval = lpfc_sli_enable_msix(phba);
8321 if (!retval) {
8322 /* Indicate initialization to MSI-X mode */
8323 phba->intr_type = MSIX;
8324 intr_mode = 2;
8325 }
8326 }
8327 }
8328
8329 /* Fallback to MSI if MSI-X initialization failed */
8330 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8331 retval = lpfc_sli_enable_msi(phba);
8332 if (!retval) {
8333 /* Indicate initialization to MSI mode */
8334 phba->intr_type = MSI;
8335 intr_mode = 1;
8336 }
8337 }
8338
8339 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8340 if (phba->intr_type == NONE) {
8341 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8342 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8343 if (!retval) {
8344 /* Indicate initialization to INTx mode */
8345 phba->intr_type = INTx;
8346 intr_mode = 0;
8347 }
8348 }
8349 return intr_mode;
8350}
8351
8352/**
8353 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8354 * @phba: pointer to lpfc hba data structure.
8355 *
8356 * This routine is invoked to disable device interrupt and disassociate the
8357 * driver's interrupt handler(s) from interrupt vector(s) to device with
8358 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8359 * release the interrupt vector(s) for the message signaled interrupt.
8360 **/
8361static void
8362lpfc_sli_disable_intr(struct lpfc_hba *phba)
8363{
8364 /* Disable the currently initialized interrupt mode */
8365 if (phba->intr_type == MSIX)
8366 lpfc_sli_disable_msix(phba);
8367 else if (phba->intr_type == MSI)
8368 lpfc_sli_disable_msi(phba);
8369 else if (phba->intr_type == INTx)
8370 free_irq(phba->pcidev->irq, phba);
8371
8372 /* Reset interrupt management states */
8373 phba->intr_type = NONE;
8374 phba->sli.slistat.sli_intr = 0;
8375
8376 return;
8377}
8378
7bb03bbf
JS		 8379/**
8380 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8381 * @phba: pointer to lpfc hba data structure.
8382 *
8383 * Find next available CPU to use for IRQ to CPU affinity.
8384 */
8385static int
8386lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8387{
8388 struct lpfc_vector_map_info *cpup;
8389 int cpu;
8390
8391 cpup = phba->sli4_hba.cpu_map;
8392 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8393 /* CPU must be online */
8394 if (cpu_online(cpu)) {
8395 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8396 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8397 (cpup->phys_id == phys_id)) {
8398 return cpu;
8399 }
8400 }
8401 cpup++;
8402 }
8403
8404 /*
8405 * If we get here, we have used ALL CPUs for the specific
8406 * phys_id. Now we need to clear out lpfc_used_cpu and start
8407 * reusing CPUs.
8408 */
8409
8410 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8411 if (lpfc_used_cpu[cpu] == phys_id)
8412 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8413 }
8414
8415 cpup = phba->sli4_hba.cpu_map;
8416 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8417 /* CPU must be online */
8418 if (cpu_online(cpu)) {
8419 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8420 (cpup->phys_id == phys_id)) {
8421 return cpu;
8422 }
8423 }
8424 cpup++;
8425 }
8426 return LPFC_VECTOR_MAP_EMPTY;
8427}
8428
8429/**
8430 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8431 * @phba: pointer to lpfc hba data structure.
8432 * @vectors: number of HBA vectors
8433 *
8434 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8435 * affinization across multple physical CPUs (numa nodes).
8436 * In addition, this routine will assign an IO channel for each CPU
8437 * to use when issuing I/Os.
8438 */
8439static int
8440lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8441{
8442 int i, idx, saved_chann, used_chann, cpu, phys_id;
ec2087a7
JS		 8443 int max_phys_id, min_phys_id;
8444 int num_io_channel, first_cpu, chan;
7bb03bbf
JS		 8445 struct lpfc_vector_map_info *cpup;
8446#ifdef CONFIG_X86
8447 struct cpuinfo_x86 *cpuinfo;
8448#endif
8449 struct cpumask *mask;
8450 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8451
8452 /* If there is no mapping, just return */
8453 if (!phba->cfg_fcp_cpu_map)
8454 return 1;
8455
8456 /* Init cpu_map array */
8457 memset(phba->sli4_hba.cpu_map, 0xff,
8458 (sizeof(struct lpfc_vector_map_info) *
8459 phba->sli4_hba.num_present_cpu));
8460
8461 max_phys_id = 0;
ec2087a7 8462 min_phys_id = 0xff;
7bb03bbf
JS		 8463 phys_id = 0;
8464 num_io_channel = 0;
8465 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8466
8467 /* Update CPU map with physical id and core id of each CPU */
8468 cpup = phba->sli4_hba.cpu_map;
8469 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8470#ifdef CONFIG_X86
8471 cpuinfo = &cpu_data(cpu);
8472 cpup->phys_id = cpuinfo->phys_proc_id;
8473 cpup->core_id = cpuinfo->cpu_core_id;
8474#else
8475 /* No distinction between CPUs for other platforms */
8476 cpup->phys_id = 0;
8477 cpup->core_id = 0;
8478#endif
8479
8480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8481 "3328 CPU physid %d coreid %d\n",
8482 cpup->phys_id, cpup->core_id);
8483
8484 if (cpup->phys_id > max_phys_id)
8485 max_phys_id = cpup->phys_id;
ec2087a7
JS		 8486 if (cpup->phys_id < min_phys_id)
8487 min_phys_id = cpup->phys_id;
7bb03bbf
JS		 8488 cpup++;
8489 }
8490
ec2087a7 8491 phys_id = min_phys_id;
7bb03bbf
JS		 8492 /* Now associate the HBA vectors with specific CPUs */
8493 for (idx = 0; idx < vectors; idx++) {
8494 cpup = phba->sli4_hba.cpu_map;
8495 cpu = lpfc_find_next_cpu(phba, phys_id);
8496 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8497
8498 /* Try for all phys_id's */
8499 for (i = 1; i < max_phys_id; i++) {
8500 phys_id++;
8501 if (phys_id > max_phys_id)
ec2087a7 8502 phys_id = min_phys_id;
7bb03bbf
JS		 8503 cpu = lpfc_find_next_cpu(phba, phys_id);
8504 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8505 continue;
8506 goto found;
8507 }
8508
ec2087a7
JS		 8509 /* Use round robin for scheduling */
8510 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8511 chan = 0;
8512 cpup = phba->sli4_hba.cpu_map;
8513 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8514 cpup->channel_id = chan;
8515 cpup++;
8516 chan++;
8517 if (chan >= phba->cfg_fcp_io_channel)
8518 chan = 0;
8519 }
8520
7bb03bbf
JS		 8521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8522 "3329 Cannot set affinity:"
8523 "Error mapping vector %d (%d)\n",
8524 idx, vectors);
8525 return 0;
8526 }
8527found:
8528 cpup += cpu;
8529 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8530 lpfc_used_cpu[cpu] = phys_id;
8531
8532 /* Associate vector with selected CPU */
8533 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8534
8535 /* Associate IO channel with selected CPU */
8536 cpup->channel_id = idx;
8537 num_io_channel++;
8538
8539 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8540 first_cpu = cpu;
8541
8542 /* Now affinitize to the selected CPU */
8543 mask = &cpup->maskbits;
8544 cpumask_clear(mask);
8545 cpumask_set_cpu(cpu, mask);
8546 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8547 vector, mask);
8548
8549 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8550 "3330 Set Affinity: CPU %d channel %d "
8551 "irq %d (%x)\n",
8552 cpu, cpup->channel_id,
8553 phba->sli4_hba.msix_entries[idx].vector, i);
8554
8555 /* Spread vector mapping across multple physical CPU nodes */
8556 phys_id++;
8557 if (phys_id > max_phys_id)
ec2087a7 8558 phys_id = min_phys_id;
7bb03bbf
JS		 8559 }
8560
8561 /*
8562 * Finally fill in the IO channel for any remaining CPUs.
8563 * At this point, all IO channels have been assigned to a specific
8564 * MSIx vector, mapped to a specific CPU.
8565 * Base the remaining IO channel assigned, to IO channels already
8566 * assigned to other CPUs on the same phys_id.
8567 */
ec2087a7 8568 for (i = min_phys_id; i <= max_phys_id; i++) {
7bb03bbf
JS		 8569 /*
8570 * If there are no io channels already mapped to
8571 * this phys_id, just round robin thru the io_channels.
8572 * Setup chann[] for round robin.
8573 */
8574 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8575 chann[idx] = idx;
8576
8577 saved_chann = 0;
8578 used_chann = 0;
8579
8580 /*
8581 * First build a list of IO channels already assigned
8582 * to this phys_id before reassigning the same IO
8583 * channels to the remaining CPUs.
8584 */
8585 cpup = phba->sli4_hba.cpu_map;
8586 cpu = first_cpu;
8587 cpup += cpu;
8588 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8589 idx++) {
8590 if (cpup->phys_id == i) {
8591 /*
8592 * Save any IO channels that are
8593 * already mapped to this phys_id.
8594 */
8595 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8596 chann[saved_chann] =
8597 cpup->channel_id;
8598 saved_chann++;
8599 goto out;
8600 }
8601
8602 /* See if we are using round-robin */
8603 if (saved_chann == 0)
8604 saved_chann =
8605 phba->cfg_fcp_io_channel;
8606
8607 /* Associate next IO channel with CPU */
8608 cpup->channel_id = chann[used_chann];
8609 num_io_channel++;
8610 used_chann++;
8611 if (used_chann == saved_chann)
8612 used_chann = 0;
8613
8614 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8615 "3331 Set IO_CHANN "
8616 "CPU %d channel %d\n",
8617 idx, cpup->channel_id);
8618 }
8619out:
8620 cpu++;
8621 if (cpu >= phba->sli4_hba.num_present_cpu) {
8622 cpup = phba->sli4_hba.cpu_map;
8623 cpu = 0;
8624 } else {
8625 cpup++;
8626 }
8627 }
8628 }
8629
8630 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8631 cpup = phba->sli4_hba.cpu_map;
8632 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8633 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8634 cpup->channel_id = 0;
8635 num_io_channel++;
8636
8637 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8638 "3332 Assign IO_CHANN "
8639 "CPU %d channel %d\n",
8640 idx, cpup->channel_id);
8641 }
8642 cpup++;
8643 }
8644 }
8645
8646 /* Sanity check */
8647 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8649 "3333 Set affinity mismatch:"
ec2087a7 8650 "%d chann != %d cpus: %d vectors\n",
7bb03bbf
JS		 8651 num_io_channel, phba->sli4_hba.num_present_cpu,
8652 vectors);
8653
ec2087a7 8654 /* Enable using cpu affinity for scheduling */
7bb03bbf
JS		 8655 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8656 return 1;
8657}
8658
8659
da0436e9
JS		 8660/**
8661 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8662 * @phba: pointer to lpfc hba data structure.
8663 *
8664 * This routine is invoked to enable the MSI-X interrupt vectors to device
8665 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8666 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8667 * enables either all or nothing, depending on the current availability of
8668 * PCI vector resources. The device driver is responsible for calling the
8669 * individual request_irq() to register each MSI-X vector with a interrupt
8670 * handler, which is done in this function. Note that later when device is
8671 * unloading, the driver should always call free_irq() on all MSI-X vectors
8672 * it has done request_irq() on before calling pci_disable_msix(). Failure
8673 * to do so results in a BUG_ON() and a device will be left with MSI-X
8674 * enabled and leaks its vectors.
8675 *
8676 * Return codes
af901ca1 8677 * 0 - successful
da0436e9
JS		 8678 * other values - error
8679 **/
8680static int
8681lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8682{
75baf696 8683 int vectors, rc, index;
da0436e9
JS		 8684
8685 /* Set up MSI-X multi-message vectors */
82c3e9ba 8686 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
da0436e9
JS		 8687 phba->sli4_hba.msix_entries[index].entry = index;
8688
8689 /* Configure MSI-X capability structure */
82c3e9ba 8690 vectors = phba->cfg_fcp_io_channel;
1ba981fd
JS		 8691 if (phba->cfg_fof) {
8692 phba->sli4_hba.msix_entries[index].entry = index;
8693 vectors++;
8694 }
75baf696 8695enable_msix_vectors:
da0436e9 8696 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 8697 vectors);
8698 if (rc > 1) {
8699 vectors = rc;
8700 goto enable_msix_vectors;
8701 } else if (rc) {
da0436e9
JS		 8702 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8703 "0484 PCI enable MSI-X failed (%d)\n", rc);
8704 goto msi_fail_out;
8705 }
75baf696 8706
da0436e9 8707 /* Log MSI-X vector assignment */
75baf696 8708 for (index = 0; index < vectors; index++)
da0436e9
JS		 8709 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8710 "0489 MSI-X entry[%d]: vector=x%x "
8711 "message=%d\n", index,
8712 phba->sli4_hba.msix_entries[index].vector,
8713 phba->sli4_hba.msix_entries[index].entry);
67d12733 8714
7bb03bbf 8715 /* Assign MSI-X vectors to interrupt handlers */
67d12733 8716 for (index = 0; index < vectors; index++) {
4305f183
JS		 8717 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8718 sprintf((char *)&phba->sli4_hba.handler_name[index],
8719 LPFC_DRIVER_HANDLER_NAME"%d", index);
da0436e9 8720
67d12733
JS		 8721 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8722 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
ba20c853 8723 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
1ba981fd
JS		 8724 if (phba->cfg_fof && (index == (vectors - 1)))
8725 rc = request_irq(
8726 phba->sli4_hba.msix_entries[index].vector,
8727 &lpfc_sli4_fof_intr_handler, IRQF_SHARED,
8728 (char *)&phba->sli4_hba.handler_name[index],
8729 &phba->sli4_hba.fcp_eq_hdl[index]);
8730 else
8731 rc = request_irq(
8732 phba->sli4_hba.msix_entries[index].vector,
67d12733 8733 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
4305f183 8734 (char *)&phba->sli4_hba.handler_name[index],
67d12733 8735 &phba->sli4_hba.fcp_eq_hdl[index]);
da0436e9
JS		 8736 if (rc) {
8737 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8738 "0486 MSI-X fast-path (%d) "
8739 "request_irq failed (%d)\n", index, rc);
8740 goto cfg_fail_out;
8741 }
8742 }
8743
1ba981fd
JS		 8744 if (phba->cfg_fof)
8745 vectors--;
8746
82c3e9ba
JS		 8747 if (vectors != phba->cfg_fcp_io_channel) {
8748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8749 "3238 Reducing IO channels to match number of "
8750 "MSI-X vectors, requested %d got %d\n",
8751 phba->cfg_fcp_io_channel, vectors);
8752 phba->cfg_fcp_io_channel = vectors;
8753 }
7bb03bbf
JS		 8754
8755 lpfc_sli4_set_affinity(phba, vectors);
da0436e9
JS		 8756 return rc;
8757
8758cfg_fail_out:
8759 /* free the irq already requested */
acbd8616
JS		 8760 for (--index; index >= 0; index--) {
8761 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8762 vector, NULL);
67d12733
JS		 8763 free_irq(phba->sli4_hba.msix_entries[index].vector,
8764 &phba->sli4_hba.fcp_eq_hdl[index]);
acbd8616 8765 }
da0436e9
JS		 8766
8767msi_fail_out:
8768 /* Unconfigure MSI-X capability structure */
8769 pci_disable_msix(phba->pcidev);
8770 return rc;
8771}
8772
8773/**
8774 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8775 * @phba: pointer to lpfc hba data structure.
8776 *
8777 * This routine is invoked to release the MSI-X vectors and then disable the
8778 * MSI-X interrupt mode to device with SLI-4 interface spec.
8779 **/
8780static void
8781lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8782{
8783 int index;
8784
8785 /* Free up MSI-X multi-message vectors */
acbd8616
JS		 8786 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8787 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8788 vector, NULL);
da0436e9 8789 free_irq(phba->sli4_hba.msix_entries[index].vector,
67d12733 8790 &phba->sli4_hba.fcp_eq_hdl[index]);
acbd8616 8791 }
1ba981fd
JS		 8792 if (phba->cfg_fof) {
8793 free_irq(phba->sli4_hba.msix_entries[index].vector,
8794 &phba->sli4_hba.fcp_eq_hdl[index]);
8795 }
da0436e9
JS		 8796 /* Disable MSI-X */
8797 pci_disable_msix(phba->pcidev);
8798
8799 return;
8800}
8801
8802/**
8803 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8804 * @phba: pointer to lpfc hba data structure.
8805 *
8806 * This routine is invoked to enable the MSI interrupt mode to device with
8807 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8808 * to enable the MSI vector. The device driver is responsible for calling
8809 * the request_irq() to register MSI vector with a interrupt the handler,
8810 * which is done in this function.
8811 *
8812 * Return codes
af901ca1 8813 * 0 - successful
da0436e9
JS		 8814 * other values - error
8815 **/
8816static int
8817lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8818{
8819 int rc, index;
8820
8821 rc = pci_enable_msi(phba->pcidev);
8822 if (!rc)
8823 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8824 "0487 PCI enable MSI mode success.\n");
8825 else {
8826 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8827 "0488 PCI enable MSI mode failed (%d)\n", rc);
8828 return rc;
8829 }
8830
8831 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8832 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8833 if (rc) {
8834 pci_disable_msi(phba->pcidev);
8835 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8836 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 8837 return rc;
da0436e9
JS		 8838 }
8839
67d12733 8840 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
da0436e9
JS		 8841 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8842 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8843 }
8844
1ba981fd
JS		 8845 if (phba->cfg_fof) {
8846 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8847 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8848 }
75baf696 8849 return 0;
da0436e9
JS		 8850}
8851
8852/**
8853 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8854 * @phba: pointer to lpfc hba data structure.
8855 *
8856 * This routine is invoked to disable the MSI interrupt mode to device with
8857 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8858 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8859 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8860 * its vector.
8861 **/
8862static void
8863lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8864{
8865 free_irq(phba->pcidev->irq, phba);
8866 pci_disable_msi(phba->pcidev);
8867 return;
8868}
8869
8870/**
8871 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8872 * @phba: pointer to lpfc hba data structure.
8873 *
8874 * This routine is invoked to enable device interrupt and associate driver's
8875 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8876 * interface spec. Depends on the interrupt mode configured to the driver,
8877 * the driver will try to fallback from the configured interrupt mode to an
8878 * interrupt mode which is supported by the platform, kernel, and device in
8879 * the order of:
8880 * MSI-X -> MSI -> IRQ.
8881 *
8882 * Return codes
af901ca1 8883 * 0 - successful
da0436e9
JS		 8884 * other values - error
8885 **/
8886static uint32_t
8887lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8888{
8889 uint32_t intr_mode = LPFC_INTR_ERROR;
8890 int retval, index;
8891
8892 if (cfg_mode == 2) {
8893 /* Preparation before conf_msi mbox cmd */
8894 retval = 0;
8895 if (!retval) {
8896 /* Now, try to enable MSI-X interrupt mode */
8897 retval = lpfc_sli4_enable_msix(phba);
8898 if (!retval) {
8899 /* Indicate initialization to MSI-X mode */
8900 phba->intr_type = MSIX;
8901 intr_mode = 2;
8902 }
8903 }
8904 }
8905
8906 /* Fallback to MSI if MSI-X initialization failed */
8907 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8908 retval = lpfc_sli4_enable_msi(phba);
8909 if (!retval) {
8910 /* Indicate initialization to MSI mode */
8911 phba->intr_type = MSI;
8912 intr_mode = 1;
8913 }
8914 }
8915
8916 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8917 if (phba->intr_type == NONE) {
8918 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8919 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8920 if (!retval) {
8921 /* Indicate initialization to INTx mode */
8922 phba->intr_type = INTx;
8923 intr_mode = 0;
67d12733 8924 for (index = 0; index < phba->cfg_fcp_io_channel;
da0436e9
JS		 8925 index++) {
8926 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8927 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
ba20c853
JS		 8928 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8929 fcp_eq_in_use, 1);
da0436e9 8930 }
1ba981fd
JS		 8931 if (phba->cfg_fof) {
8932 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8933 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8934 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8935 fcp_eq_in_use, 1);
8936 }
da0436e9
JS		 8937 }
8938 }
8939 return intr_mode;
8940}
8941
8942/**
8943 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8944 * @phba: pointer to lpfc hba data structure.
8945 *
8946 * This routine is invoked to disable device interrupt and disassociate
8947 * the driver's interrupt handler(s) from interrupt vector(s) to device
8948 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8949 * will release the interrupt vector(s) for the message signaled interrupt.
8950 **/
8951static void
8952lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8953{
8954 /* Disable the currently initialized interrupt mode */
8955 if (phba->intr_type == MSIX)
8956 lpfc_sli4_disable_msix(phba);
8957 else if (phba->intr_type == MSI)
8958 lpfc_sli4_disable_msi(phba);
8959 else if (phba->intr_type == INTx)
8960 free_irq(phba->pcidev->irq, phba);
8961
8962 /* Reset interrupt management states */
8963 phba->intr_type = NONE;
8964 phba->sli.slistat.sli_intr = 0;
8965
8966 return;
8967}
8968
8969/**
8970 * lpfc_unset_hba - Unset SLI3 hba device initialization
8971 * @phba: pointer to lpfc hba data structure.
8972 *
8973 * This routine is invoked to unset the HBA device initialization steps to
8974 * a device with SLI-3 interface spec.
8975 **/
8976static void
8977lpfc_unset_hba(struct lpfc_hba *phba)
8978{
8979 struct lpfc_vport *vport = phba->pport;
8980 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8981
8982 spin_lock_irq(shost->host_lock);
8983 vport->load_flag |= FC_UNLOADING;
8984 spin_unlock_irq(shost->host_lock);
8985
72859909
JS		 8986 kfree(phba->vpi_bmask);
8987 kfree(phba->vpi_ids);
8988
da0436e9
JS		 8989 lpfc_stop_hba_timers(phba);
8990
8991 phba->pport->work_port_events = 0;
8992
8993 lpfc_sli_hba_down(phba);
8994
8995 lpfc_sli_brdrestart(phba);
8996
8997 lpfc_sli_disable_intr(phba);
8998
8999 return;
9000}
9001
5af5eee7
JS		 9002/**
9003 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9004 * @phba: Pointer to HBA context object.
9005 *
9006 * This function is called in the SLI4 code path to wait for completion
9007 * of device's XRIs exchange busy. It will check the XRI exchange busy
9008 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9009 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9010 * I/Os every 30 seconds, log error message, and wait forever. Only when
9011 * all XRI exchange busy complete, the driver unload shall proceed with
9012 * invoking the function reset ioctl mailbox command to the CNA and the
9013 * the rest of the driver unload resource release.
9014 **/
9015static void
9016lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9017{
9018 int wait_time = 0;
9019 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9020 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9021
9022 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9023 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9024 if (!fcp_xri_cmpl)
9025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9026 "2877 FCP XRI exchange busy "
9027 "wait time: %d seconds.\n",
9028 wait_time/1000);
9029 if (!els_xri_cmpl)
9030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9031 "2878 ELS XRI exchange busy "
9032 "wait time: %d seconds.\n",
9033 wait_time/1000);
9034 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9035 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9036 } else {
9037 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9038 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9039 }
9040 fcp_xri_cmpl =
9041 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9042 els_xri_cmpl =
9043 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9044 }
9045}
9046
da0436e9
JS		 9047/**
9048 * lpfc_sli4_hba_unset - Unset the fcoe hba
9049 * @phba: Pointer to HBA context object.
9050 *
9051 * This function is called in the SLI4 code path to reset the HBA's FCoE
9052 * function. The caller is not required to hold any lock. This routine
9053 * issues PCI function reset mailbox command to reset the FCoE function.
9054 * At the end of the function, it calls lpfc_hba_down_post function to
9055 * free any pending commands.
9056 **/
9057static void
9058lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9059{
9060 int wait_cnt = 0;
9061 LPFC_MBOXQ_t *mboxq;
912e3acd 9062 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 9063
9064 lpfc_stop_hba_timers(phba);
9065 phba->sli4_hba.intr_enable = 0;
9066
9067 /*
9068 * Gracefully wait out the potential current outstanding asynchronous
9069 * mailbox command.
9070 */
9071
9072 /* First, block any pending async mailbox command from posted */
9073 spin_lock_irq(&phba->hbalock);
9074 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9075 spin_unlock_irq(&phba->hbalock);
9076 /* Now, trying to wait it out if we can */
9077 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9078 msleep(10);
9079 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9080 break;
9081 }
9082 /* Forcefully release the outstanding mailbox command if timed out */
9083 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9084 spin_lock_irq(&phba->hbalock);
9085 mboxq = phba->sli.mbox_active;
9086 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9087 __lpfc_mbox_cmpl_put(phba, mboxq);
9088 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9089 phba->sli.mbox_active = NULL;
9090 spin_unlock_irq(&phba->hbalock);
9091 }
9092
5af5eee7
JS		 9093 /* Abort all iocbs associated with the hba */
9094 lpfc_sli_hba_iocb_abort(phba);
9095
9096 /* Wait for completion of device XRI exchange busy */
9097 lpfc_sli4_xri_exchange_busy_wait(phba);
9098
da0436e9
JS		 9099 /* Disable PCI subsystem interrupt */
9100 lpfc_sli4_disable_intr(phba);
9101
912e3acd
JS		 9102 /* Disable SR-IOV if enabled */
9103 if (phba->cfg_sriov_nr_virtfn)
9104 pci_disable_sriov(pdev);
9105
da0436e9
JS		 9106 /* Stop kthread signal shall trigger work_done one more time */
9107 kthread_stop(phba->worker_thread);
9108
3677a3a7
JS		 9109 /* Reset SLI4 HBA FCoE function */
9110 lpfc_pci_function_reset(phba);
5350d872 9111 lpfc_sli4_queue_destroy(phba);
3677a3a7 9112
da0436e9
JS		 9113 /* Stop the SLI4 device port */
9114 phba->pport->work_port_events = 0;
9115}
9116
28baac74
JS		 9117 /**
9118 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9119 * @phba: Pointer to HBA context object.
9120 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9121 *
9122 * This function is called in the SLI4 code path to read the port's
9123 * sli4 capabilities.
9124 *
9125 * This function may be be called from any context that can block-wait
9126 * for the completion. The expectation is that this routine is called
9127 * typically from probe_one or from the online routine.
9128 **/
9129int
9130lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9131{
9132 int rc;
9133 struct lpfc_mqe *mqe;
9134 struct lpfc_pc_sli4_params *sli4_params;
9135 uint32_t mbox_tmo;
9136
9137 rc = 0;
9138 mqe = &mboxq->u.mqe;
9139
9140 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 9141 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 9142 if (!phba->sli4_hba.intr_enable)
9143 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9144 else {
a183a15f 9145 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
28baac74
JS		 9146 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9147 }
9148
9149 if (unlikely(rc))
9150 return 1;
9151
9152 sli4_params = &phba->sli4_hba.pc_sli4_params;
9153 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9154 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9155 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9156 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9157 &mqe->un.sli4_params);
9158 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9159 &mqe->un.sli4_params);
9160 sli4_params->proto_types = mqe->un.sli4_params.word3;
9161 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9162 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9163 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9164 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9165 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9166 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9167 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9168 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9169 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9170 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9171 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9172 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9173 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9174 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9175 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9176 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9177 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9178 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9179 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9180 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 9181
9182 /* Make sure that sge_supp_len can be handled by the driver */
9183 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9184 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9185
28baac74
JS		 9186 return rc;
9187}
9188
fedd3b7b
JS		 9189/**
9190 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9191 * @phba: Pointer to HBA context object.
9192 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9193 *
9194 * This function is called in the SLI4 code path to read the port's
9195 * sli4 capabilities.
9196 *
9197 * This function may be be called from any context that can block-wait
9198 * for the completion. The expectation is that this routine is called
9199 * typically from probe_one or from the online routine.
9200 **/
9201int
9202lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9203{
9204 int rc;
9205 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9206 struct lpfc_pc_sli4_params *sli4_params;
a183a15f 9207 uint32_t mbox_tmo;
fedd3b7b
JS		 9208 int length;
9209 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9210
6d368e53
JS		 9211 /*
9212 * By default, the driver assumes the SLI4 port requires RPI
9213 * header postings. The SLI4_PARAM response will correct this
9214 * assumption.
9215 */
9216 phba->sli4_hba.rpi_hdrs_in_use = 1;
9217
fedd3b7b
JS		 9218 /* Read the port's SLI4 Config Parameters */
9219 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9220 sizeof(struct lpfc_sli4_cfg_mhdr));
9221 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9222 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9223 length, LPFC_SLI4_MBX_EMBED);
9224 if (!phba->sli4_hba.intr_enable)
9225 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 9226 else {
9227 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9228 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9229 }
fedd3b7b
JS		 9230 if (unlikely(rc))
9231 return rc;
9232 sli4_params = &phba->sli4_hba.pc_sli4_params;
9233 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9234 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9235 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9236 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9237 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9238 mbx_sli4_parameters);
9239 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9240 mbx_sli4_parameters);
9241 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9242 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9243 else
9244 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9245 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9246 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
1ba981fd 9247 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
fedd3b7b
JS		 9248 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9249 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9250 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9251 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
0c651878 9252 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
fedd3b7b
JS		 9253 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9254 mbx_sli4_parameters);
9255 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9256 mbx_sli4_parameters);
6d368e53
JS		 9257 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9258 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 9259
9260 /* Make sure that sge_supp_len can be handled by the driver */
9261 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9262 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9263
fedd3b7b
JS		 9264 return 0;
9265}
9266
da0436e9
JS		 9267/**
9268 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9269 * @pdev: pointer to PCI device
9270 * @pid: pointer to PCI device identifier
9271 *
9272 * This routine is to be called to attach a device with SLI-3 interface spec
9273 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9274 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9275 * information of the device and driver to see if the driver state that it can
9276 * support this kind of device. If the match is successful, the driver core
9277 * invokes this routine. If this routine determines it can claim the HBA, it
9278 * does all the initialization that it needs to do to handle the HBA properly.
9279 *
9280 * Return code
9281 * 0 - driver can claim the device
9282 * negative value - driver can not claim the device
9283 **/
6f039790 9284static int
da0436e9
JS		 9285lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9286{
9287 struct lpfc_hba *phba;
9288 struct lpfc_vport *vport = NULL;
6669f9bb 9289 struct Scsi_Host *shost = NULL;
da0436e9
JS		 9290 int error;
9291 uint32_t cfg_mode, intr_mode;
9292
9293 /* Allocate memory for HBA structure */
9294 phba = lpfc_hba_alloc(pdev);
9295 if (!phba)
9296 return -ENOMEM;
9297
9298 /* Perform generic PCI device enabling operation */
9299 error = lpfc_enable_pci_dev(phba);
079b5c91 9300 if (error)
da0436e9 9301 goto out_free_phba;
da0436e9
JS		 9302
9303 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9304 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9305 if (error)
9306 goto out_disable_pci_dev;
9307
9308 /* Set up SLI-3 specific device PCI memory space */
9309 error = lpfc_sli_pci_mem_setup(phba);
9310 if (error) {
9311 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9312 "1402 Failed to set up pci memory space.\n");
9313 goto out_disable_pci_dev;
9314 }
9315
9316 /* Set up phase-1 common device driver resources */
9317 error = lpfc_setup_driver_resource_phase1(phba);
9318 if (error) {
9319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9320 "1403 Failed to set up driver resource.\n");
9321 goto out_unset_pci_mem_s3;
9322 }
9323
9324 /* Set up SLI-3 specific device driver resources */
9325 error = lpfc_sli_driver_resource_setup(phba);
9326 if (error) {
9327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9328 "1404 Failed to set up driver resource.\n");
9329 goto out_unset_pci_mem_s3;
9330 }
9331
9332 /* Initialize and populate the iocb list per host */
9333 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9334 if (error) {
9335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9336 "1405 Failed to initialize iocb list.\n");
9337 goto out_unset_driver_resource_s3;
9338 }
9339
9340 /* Set up common device driver resources */
9341 error = lpfc_setup_driver_resource_phase2(phba);
9342 if (error) {
9343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9344 "1406 Failed to set up driver resource.\n");
9345 goto out_free_iocb_list;
9346 }
9347
079b5c91
JS		 9348 /* Get the default values for Model Name and Description */
9349 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9350
da0436e9
JS		 9351 /* Create SCSI host to the physical port */
9352 error = lpfc_create_shost(phba);
9353 if (error) {
9354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9355 "1407 Failed to create scsi host.\n");
9356 goto out_unset_driver_resource;
9357 }
9358
9359 /* Configure sysfs attributes */
9360 vport = phba->pport;
9361 error = lpfc_alloc_sysfs_attr(vport);
9362 if (error) {
9363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9364 "1476 Failed to allocate sysfs attr\n");
9365 goto out_destroy_shost;
9366 }
9367
6669f9bb 9368 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 9369 /* Now, trying to enable interrupt and bring up the device */
9370 cfg_mode = phba->cfg_use_msi;
9371 while (true) {
9372 /* Put device to a known state before enabling interrupt */
9373 lpfc_stop_port(phba);
9374 /* Configure and enable interrupt */
9375 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9376 if (intr_mode == LPFC_INTR_ERROR) {
9377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9378 "0431 Failed to enable interrupt.\n");
9379 error = -ENODEV;
9380 goto out_free_sysfs_attr;
9381 }
9382 /* SLI-3 HBA setup */
9383 if (lpfc_sli_hba_setup(phba)) {
9384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9385 "1477 Failed to set up hba\n");
9386 error = -ENODEV;
9387 goto out_remove_device;
9388 }
9389
9390 /* Wait 50ms for the interrupts of previous mailbox commands */
9391 msleep(50);
9392 /* Check active interrupts on message signaled interrupts */
9393 if (intr_mode == 0 ||
9394 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9395 /* Log the current active interrupt mode */
9396 phba->intr_mode = intr_mode;
9397 lpfc_log_intr_mode(phba, intr_mode);
9398 break;
9399 } else {
9400 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9401 "0447 Configure interrupt mode (%d) "
9402 "failed active interrupt test.\n",
9403 intr_mode);
9404 /* Disable the current interrupt mode */
9405 lpfc_sli_disable_intr(phba);
9406 /* Try next level of interrupt mode */
9407 cfg_mode = --intr_mode;
9408 }
9409 }
9410
9411 /* Perform post initialization setup */
9412 lpfc_post_init_setup(phba);
9413
9414 /* Check if there are static vports to be created. */
9415 lpfc_create_static_vport(phba);
9416
9417 return 0;
9418
9419out_remove_device:
9420 lpfc_unset_hba(phba);
9421out_free_sysfs_attr:
9422 lpfc_free_sysfs_attr(vport);
9423out_destroy_shost:
9424 lpfc_destroy_shost(phba);
9425out_unset_driver_resource:
9426 lpfc_unset_driver_resource_phase2(phba);
9427out_free_iocb_list:
9428 lpfc_free_iocb_list(phba);
9429out_unset_driver_resource_s3:
9430 lpfc_sli_driver_resource_unset(phba);
9431out_unset_pci_mem_s3:
9432 lpfc_sli_pci_mem_unset(phba);
9433out_disable_pci_dev:
9434 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9435 if (shost)
9436 scsi_host_put(shost);
da0436e9
JS		 9437out_free_phba:
9438 lpfc_hba_free(phba);
9439 return error;
9440}
9441
9442/**
9443 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9444 * @pdev: pointer to PCI device
9445 *
9446 * This routine is to be called to disattach a device with SLI-3 interface
9447 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9448 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9449 * device to be removed from the PCI subsystem properly.
9450 **/
6f039790 9451static void
da0436e9
JS		 9452lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9453{
9454 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9455 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9456 struct lpfc_vport **vports;
9457 struct lpfc_hba *phba = vport->phba;
9458 int i;
9459 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9460
9461 spin_lock_irq(&phba->hbalock);
9462 vport->load_flag |= FC_UNLOADING;
9463 spin_unlock_irq(&phba->hbalock);
9464
9465 lpfc_free_sysfs_attr(vport);
9466
9467 /* Release all the vports against this physical port */
9468 vports = lpfc_create_vport_work_array(phba);
9469 if (vports != NULL)
587a37f6
JS		 9470 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9471 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9472 continue;
da0436e9 9473 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 9474 }
da0436e9
JS		 9475 lpfc_destroy_vport_work_array(phba, vports);
9476
9477 /* Remove FC host and then SCSI host with the physical port */
9478 fc_remove_host(shost);
9479 scsi_remove_host(shost);
9480 lpfc_cleanup(vport);
9481
9482 /*
9483 * Bring down the SLI Layer. This step disable all interrupts,
9484 * clears the rings, discards all mailbox commands, and resets
9485 * the HBA.
9486 */
9487
48e34d0f 9488 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 9489 lpfc_sli_hba_down(phba);
9490 /* Stop kthread signal shall trigger work_done one more time */
9491 kthread_stop(phba->worker_thread);
9492 /* Final cleanup of txcmplq and reset the HBA */
9493 lpfc_sli_brdrestart(phba);
9494
72859909
JS		 9495 kfree(phba->vpi_bmask);
9496 kfree(phba->vpi_ids);
9497
da0436e9
JS		 9498 lpfc_stop_hba_timers(phba);
9499 spin_lock_irq(&phba->hbalock);
9500 list_del_init(&vport->listentry);
9501 spin_unlock_irq(&phba->hbalock);
9502
9503 lpfc_debugfs_terminate(vport);
9504
912e3acd
JS		 9505 /* Disable SR-IOV if enabled */
9506 if (phba->cfg_sriov_nr_virtfn)
9507 pci_disable_sriov(pdev);
9508
da0436e9
JS		 9509 /* Disable interrupt */
9510 lpfc_sli_disable_intr(phba);
9511
da0436e9
JS		 9512 scsi_host_put(shost);
9513
9514 /*
9515 * Call scsi_free before mem_free since scsi bufs are released to their
9516 * corresponding pools here.
9517 */
9518 lpfc_scsi_free(phba);
9519 lpfc_mem_free_all(phba);
9520
9521 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9522 phba->hbqslimp.virt, phba->hbqslimp.phys);
9523
9524 /* Free resources associated with SLI2 interface */
9525 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9526 phba->slim2p.virt, phba->slim2p.phys);
9527
9528 /* unmap adapter SLIM and Control Registers */
9529 iounmap(phba->ctrl_regs_memmap_p);
9530 iounmap(phba->slim_memmap_p);
9531
9532 lpfc_hba_free(phba);
9533
9534 pci_release_selected_regions(pdev, bars);
9535 pci_disable_device(pdev);
9536}
9537
9538/**
9539 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9540 * @pdev: pointer to PCI device
9541 * @msg: power management message
9542 *
9543 * This routine is to be called from the kernel's PCI subsystem to support
9544 * system Power Management (PM) to device with SLI-3 interface spec. When
9545 * PM invokes this method, it quiesces the device by stopping the driver's
9546 * worker thread for the device, turning off device's interrupt and DMA,
9547 * and bring the device offline. Note that as the driver implements the
9548 * minimum PM requirements to a power-aware driver's PM support for the
9549 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9550 * to the suspend() method call will be treated as SUSPEND and the driver will
9551 * fully reinitialize its device during resume() method call, the driver will
9552 * set device to PCI_D3hot state in PCI config space instead of setting it
9553 * according to the @msg provided by the PM.
9554 *
9555 * Return code
9556 * 0 - driver suspended the device
9557 * Error otherwise
9558 **/
9559static int
9560lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9561{
9562 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9563 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9564
9565 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9566 "0473 PCI device Power Management suspend.\n");
9567
9568 /* Bring down the device */
618a5230 9569 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 9570 lpfc_offline(phba);
9571 kthread_stop(phba->worker_thread);
9572
9573 /* Disable interrupt from device */
9574 lpfc_sli_disable_intr(phba);
9575
9576 /* Save device state to PCI config space */
9577 pci_save_state(pdev);
9578 pci_set_power_state(pdev, PCI_D3hot);
9579
9580 return 0;
9581}
9582
9583/**
9584 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9585 * @pdev: pointer to PCI device
9586 *
9587 * This routine is to be called from the kernel's PCI subsystem to support
9588 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9589 * invokes this method, it restores the device's PCI config space state and
9590 * fully reinitializes the device and brings it online. Note that as the
9591 * driver implements the minimum PM requirements to a power-aware driver's
9592 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9593 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9594 * driver will fully reinitialize its device during resume() method call,
9595 * the device will be set to PCI_D0 directly in PCI config space before
9596 * restoring the state.
9597 *
9598 * Return code
9599 * 0 - driver suspended the device
9600 * Error otherwise
9601 **/
9602static int
9603lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9604{
9605 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9606 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9607 uint32_t intr_mode;
9608 int error;
9609
9610 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9611 "0452 PCI device Power Management resume.\n");
9612
9613 /* Restore device state from PCI config space */
9614 pci_set_power_state(pdev, PCI_D0);
9615 pci_restore_state(pdev);
0d878419 9616
1dfb5a47
JS		 9617 /*
9618 * As the new kernel behavior of pci_restore_state() API call clears
9619 * device saved_state flag, need to save the restored state again.
9620 */
9621 pci_save_state(pdev);
9622
da0436e9
JS		 9623 if (pdev->is_busmaster)
9624 pci_set_master(pdev);
9625
9626 /* Startup the kernel thread for this host adapter. */
9627 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9628 "lpfc_worker_%d", phba->brd_no);
9629 if (IS_ERR(phba->worker_thread)) {
9630 error = PTR_ERR(phba->worker_thread);
9631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9632 "0434 PM resume failed to start worker "
9633 "thread: error=x%x.\n", error);
9634 return error;
9635 }
9636
9637 /* Configure and enable interrupt */
9638 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9639 if (intr_mode == LPFC_INTR_ERROR) {
9640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9641 "0430 PM resume Failed to enable interrupt\n");
9642 return -EIO;
9643 } else
9644 phba->intr_mode = intr_mode;
9645
9646 /* Restart HBA and bring it online */
9647 lpfc_sli_brdrestart(phba);
9648 lpfc_online(phba);
9649
9650 /* Log the current active interrupt mode */
9651 lpfc_log_intr_mode(phba, phba->intr_mode);
9652
9653 return 0;
9654}
9655
891478a2
JS		 9656/**
9657 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9658 * @phba: pointer to lpfc hba data structure.
9659 *
9660 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 9661 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 9662 **/
9663static void
9664lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9665{
e2af0d2e
JS		 9666 struct lpfc_sli *psli = &phba->sli;
9667 struct lpfc_sli_ring *pring;
9668
891478a2
JS		 9669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9670 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 9671
9672 /*
9673 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9674 * and let the SCSI mid-layer to retry them to recover.
9675 */
9676 pring = &psli->ring[psli->fcp_ring];
9677 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 9678}
9679
0d878419
JS		 9680/**
9681 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9682 * @phba: pointer to lpfc hba data structure.
9683 *
9684 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9685 * disables the device interrupt and pci device, and aborts the internal FCP
9686 * pending I/Os.
9687 **/
9688static void
9689lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9690{
0d878419 9691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 9692 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 9693
75baf696 9694 /* Block any management I/Os to the device */
618a5230 9695 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
75baf696 9696
e2af0d2e
JS		 9697 /* Block all SCSI devices' I/Os on the host */
9698 lpfc_scsi_dev_block(phba);
9699
ea714f3d
JS		 9700 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9701 lpfc_sli_flush_fcp_rings(phba);
9702
e2af0d2e
JS		 9703 /* stop all timers */
9704 lpfc_stop_hba_timers(phba);
9705
0d878419
JS		 9706 /* Disable interrupt and pci device */
9707 lpfc_sli_disable_intr(phba);
9708 pci_disable_device(phba->pcidev);
0d878419
JS		 9709}
9710
9711/**
9712 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9713 * @phba: pointer to lpfc hba data structure.
9714 *
9715 * This routine is called to prepare the SLI3 device for PCI slot permanently
9716 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9717 * pending I/Os.
9718 **/
9719static void
75baf696 9720lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 9721{
9722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 9723 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 9724 /* Block all SCSI devices' I/Os on the host */
9725 lpfc_scsi_dev_block(phba);
9726
9727 /* stop all timers */
9728 lpfc_stop_hba_timers(phba);
9729
0d878419
JS		 9730 /* Clean up all driver's outstanding SCSI I/Os */
9731 lpfc_sli_flush_fcp_rings(phba);
9732}
9733
da0436e9
JS		 9734/**
9735 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9736 * @pdev: pointer to PCI device.
9737 * @state: the current PCI connection state.
9738 *
9739 * This routine is called from the PCI subsystem for I/O error handling to
9740 * device with SLI-3 interface spec. This function is called by the PCI
9741 * subsystem after a PCI bus error affecting this device has been detected.
9742 * When this function is invoked, it will need to stop all the I/Os and
9743 * interrupt(s) to the device. Once that is done, it will return
9744 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9745 * as desired.
9746 *
9747 * Return codes
0d878419 9748 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 9749 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9750 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9751 **/
9752static pci_ers_result_t
9753lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9754{
9755 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9756 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 9757
0d878419
JS		 9758 switch (state) {
9759 case pci_channel_io_normal:
891478a2
JS		 9760 /* Non-fatal error, prepare for recovery */
9761 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 9762 return PCI_ERS_RESULT_CAN_RECOVER;
9763 case pci_channel_io_frozen:
9764 /* Fatal error, prepare for slot reset */
9765 lpfc_sli_prep_dev_for_reset(phba);
9766 return PCI_ERS_RESULT_NEED_RESET;
9767 case pci_channel_io_perm_failure:
9768 /* Permanent failure, prepare for device down */
75baf696 9769 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 9770 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 9771 default:
9772 /* Unknown state, prepare and request slot reset */
9773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9774 "0472 Unknown PCI error state: x%x\n", state);
9775 lpfc_sli_prep_dev_for_reset(phba);
9776 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 9777 }
da0436e9
JS		 9778}
9779
9780/**
9781 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9782 * @pdev: pointer to PCI device.
9783 *
9784 * This routine is called from the PCI subsystem for error handling to
9785 * device with SLI-3 interface spec. This is called after PCI bus has been
9786 * reset to restart the PCI card from scratch, as if from a cold-boot.
9787 * During the PCI subsystem error recovery, after driver returns
9788 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9789 * recovery and then call this routine before calling the .resume method
9790 * to recover the device. This function will initialize the HBA device,
9791 * enable the interrupt, but it will just put the HBA to offline state
9792 * without passing any I/O traffic.
9793 *
9794 * Return codes
9795 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9796 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9797 */
9798static pci_ers_result_t
9799lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9800{
9801 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9802 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9803 struct lpfc_sli *psli = &phba->sli;
9804 uint32_t intr_mode;
9805
9806 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9807 if (pci_enable_device_mem(pdev)) {
9808 printk(KERN_ERR "lpfc: Cannot re-enable "
9809 "PCI device after reset.\n");
9810 return PCI_ERS_RESULT_DISCONNECT;
9811 }
9812
9813 pci_restore_state(pdev);
1dfb5a47
JS		 9814
9815 /*
9816 * As the new kernel behavior of pci_restore_state() API call clears
9817 * device saved_state flag, need to save the restored state again.
9818 */
9819 pci_save_state(pdev);
9820
da0436e9
JS		 9821 if (pdev->is_busmaster)
9822 pci_set_master(pdev);
9823
9824 spin_lock_irq(&phba->hbalock);
9825 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9826 spin_unlock_irq(&phba->hbalock);
9827
9828 /* Configure and enable interrupt */
9829 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9830 if (intr_mode == LPFC_INTR_ERROR) {
9831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9832 "0427 Cannot re-enable interrupt after "
9833 "slot reset.\n");
9834 return PCI_ERS_RESULT_DISCONNECT;
9835 } else
9836 phba->intr_mode = intr_mode;
9837
75baf696 9838 /* Take device offline, it will perform cleanup */
618a5230 9839 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 9840 lpfc_offline(phba);
9841 lpfc_sli_brdrestart(phba);
9842
9843 /* Log the current active interrupt mode */
9844 lpfc_log_intr_mode(phba, phba->intr_mode);
9845
9846 return PCI_ERS_RESULT_RECOVERED;
9847}
9848
9849/**
9850 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9851 * @pdev: pointer to PCI device
9852 *
9853 * This routine is called from the PCI subsystem for error handling to device
9854 * with SLI-3 interface spec. It is called when kernel error recovery tells
9855 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9856 * error recovery. After this call, traffic can start to flow from this device
9857 * again.
9858 */
9859static void
9860lpfc_io_resume_s3(struct pci_dev *pdev)
9861{
9862 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9863 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 9864
e2af0d2e 9865 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 9866 lpfc_online(phba);
0d878419
JS		 9867
9868 /* Clean up Advanced Error Reporting (AER) if needed */
9869 if (phba->hba_flag & HBA_AER_ENABLED)
9870 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 9871}
3772a991 9872
da0436e9
JS		 9873/**
9874 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9875 * @phba: pointer to lpfc hba data structure.
9876 *
9877 * returns the number of ELS/CT IOCBs to reserve
9878 **/
9879int
9880lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9881{
9882 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9883
f1126688
JS		 9884 if (phba->sli_rev == LPFC_SLI_REV4) {
9885 if (max_xri <= 100)
6a9c52cf 9886 return 10;
f1126688 9887 else if (max_xri <= 256)
6a9c52cf 9888 return 25;
f1126688 9889 else if (max_xri <= 512)
6a9c52cf 9890 return 50;
f1126688 9891 else if (max_xri <= 1024)
6a9c52cf 9892 return 100;
8a9d2e80 9893 else if (max_xri <= 1536)
6a9c52cf 9894 return 150;
8a9d2e80
JS		 9895 else if (max_xri <= 2048)
9896 return 200;
9897 else
9898 return 250;
f1126688
JS		 9899 } else
9900 return 0;
3772a991
JS		 9901}
9902
52d52440
JS		 9903/**
9904 * lpfc_write_firmware - attempt to write a firmware image to the port
52d52440 9905 * @fw: pointer to firmware image returned from request_firmware.
ce396282 9906 * @phba: pointer to lpfc hba data structure.
52d52440 9907 *
52d52440 9908 **/
ce396282
JS		 9909static void
9910lpfc_write_firmware(const struct firmware *fw, void *context)
52d52440 9911{
ce396282 9912 struct lpfc_hba *phba = (struct lpfc_hba *)context;
6b5151fd 9913 char fwrev[FW_REV_STR_SIZE];
ce396282 9914 struct lpfc_grp_hdr *image;
52d52440
JS		 9915 struct list_head dma_buffer_list;
9916 int i, rc = 0;
9917 struct lpfc_dmabuf *dmabuf, *next;
9918 uint32_t offset = 0, temp_offset = 0;
9919
c71ab861 9920 /* It can be null in no-wait mode, sanity check */
ce396282
JS		 9921 if (!fw) {
9922 rc = -ENXIO;
9923 goto out;
9924 }
9925 image = (struct lpfc_grp_hdr *)fw->data;
9926
52d52440 9927 INIT_LIST_HEAD(&dma_buffer_list);
079b5c91
JS		 9928 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9929 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9930 LPFC_FILE_TYPE_GROUP) ||
9931 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9932 (be32_to_cpu(image->size) != fw->size)) {
52d52440
JS		 9933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9934 "3022 Invalid FW image found. "
079b5c91
JS		 9935 "Magic:%x Type:%x ID:%x\n",
9936 be32_to_cpu(image->magic_number),
9937 bf_get_be32(lpfc_grp_hdr_file_type, image),
9938 bf_get_be32(lpfc_grp_hdr_id, image));
ce396282
JS		 9939 rc = -EINVAL;
9940 goto release_out;
52d52440
JS		 9941 }
9942 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 9943 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440 9944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
ce396282 9945 "3023 Updating Firmware, Current Version:%s "
52d52440 9946 "New Version:%s\n",
88a2cfbb 9947 fwrev, image->revision);
52d52440
JS		 9948 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9949 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9950 GFP_KERNEL);
9951 if (!dmabuf) {
9952 rc = -ENOMEM;
ce396282 9953 goto release_out;
52d52440
JS		 9954 }
9955 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9956 SLI4_PAGE_SIZE,
9957 &dmabuf->phys,
9958 GFP_KERNEL);
9959 if (!dmabuf->virt) {
9960 kfree(dmabuf);
9961 rc = -ENOMEM;
ce396282 9962 goto release_out;
52d52440
JS		 9963 }
9964 list_add_tail(&dmabuf->list, &dma_buffer_list);
9965 }
9966 while (offset < fw->size) {
9967 temp_offset = offset;
9968 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
079b5c91 9969 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
52d52440
JS		 9970 memcpy(dmabuf->virt,
9971 fw->data + temp_offset,
079b5c91
JS		 9972 fw->size - temp_offset);
9973 temp_offset = fw->size;
52d52440
JS		 9974 break;
9975 }
52d52440
JS		 9976 memcpy(dmabuf->virt, fw->data + temp_offset,
9977 SLI4_PAGE_SIZE);
88a2cfbb 9978 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 9979 }
9980 rc = lpfc_wr_object(phba, &dma_buffer_list,
9981 (fw->size - offset), &offset);
ce396282
JS		 9982 if (rc)
9983 goto release_out;
52d52440
JS		 9984 }
9985 rc = offset;
9986 }
ce396282
JS		 9987
9988release_out:
52d52440
JS		 9989 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9990 list_del(&dmabuf->list);
9991 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9992 dmabuf->virt, dmabuf->phys);
9993 kfree(dmabuf);
9994 }
ce396282
JS		 9995 release_firmware(fw);
9996out:
9997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
c71ab861 9998 "3024 Firmware update done: %d.\n", rc);
ce396282 9999 return;
52d52440
JS		 10000}
10001
c71ab861
JS		 10002/**
10003 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10004 * @phba: pointer to lpfc hba data structure.
10005 *
10006 * This routine is called to perform Linux generic firmware upgrade on device
10007 * that supports such feature.
10008 **/
10009int
10010lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10011{
10012 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10013 int ret;
10014 const struct firmware *fw;
10015
10016 /* Only supported on SLI4 interface type 2 for now */
10017 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10018 LPFC_SLI_INTF_IF_TYPE_2)
10019 return -EPERM;
10020
10021 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10022
10023 if (fw_upgrade == INT_FW_UPGRADE) {
10024 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10025 file_name, &phba->pcidev->dev,
10026 GFP_KERNEL, (void *)phba,
10027 lpfc_write_firmware);
10028 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10029 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10030 if (!ret)
10031 lpfc_write_firmware(fw, (void *)phba);
10032 } else {
10033 ret = -EINVAL;
10034 }
10035
10036 return ret;
10037}
10038
3772a991 10039/**
da0436e9 10040 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 10041 * @pdev: pointer to PCI device
10042 * @pid: pointer to PCI device identifier
10043 *
da0436e9
JS		 10044 * This routine is called from the kernel's PCI subsystem to device with
10045 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 10046 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 10047 * information of the device and driver to see if the driver state that it
10048 * can support this kind of device. If the match is successful, the driver
10049 * core invokes this routine. If this routine determines it can claim the HBA,
10050 * it does all the initialization that it needs to do to handle the HBA
10051 * properly.
3772a991
JS		 10052 *
10053 * Return code
10054 * 0 - driver can claim the device
10055 * negative value - driver can not claim the device
10056 **/
6f039790 10057static int
da0436e9 10058lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 10059{
10060 struct lpfc_hba *phba;
10061 struct lpfc_vport *vport = NULL;
6669f9bb 10062 struct Scsi_Host *shost = NULL;
ce396282 10063 int error, ret;
3772a991 10064 uint32_t cfg_mode, intr_mode;
67d12733 10065 int adjusted_fcp_io_channel;
3772a991
JS		 10066
10067 /* Allocate memory for HBA structure */
10068 phba = lpfc_hba_alloc(pdev);
10069 if (!phba)
10070 return -ENOMEM;
10071
10072 /* Perform generic PCI device enabling operation */
10073 error = lpfc_enable_pci_dev(phba);
079b5c91 10074 if (error)
3772a991 10075 goto out_free_phba;
3772a991 10076
da0436e9
JS		 10077 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10078 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 10079 if (error)
10080 goto out_disable_pci_dev;
10081
da0436e9
JS		 10082 /* Set up SLI-4 specific device PCI memory space */
10083 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 10084 if (error) {
10085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10086 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 10087 goto out_disable_pci_dev;
10088 }
10089
10090 /* Set up phase-1 common device driver resources */
10091 error = lpfc_setup_driver_resource_phase1(phba);
10092 if (error) {
10093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 10094 "1411 Failed to set up driver resource.\n");
10095 goto out_unset_pci_mem_s4;
3772a991
JS		 10096 }
10097
da0436e9
JS		 10098 /* Set up SLI-4 Specific device driver resources */
10099 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 10100 if (error) {
10101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 10102 "1412 Failed to set up driver resource.\n");
10103 goto out_unset_pci_mem_s4;
3772a991
JS		 10104 }
10105
10106 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 10107
10108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10109 "2821 initialize iocb list %d.\n",
10110 phba->cfg_iocb_cnt*1024);
10111 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10112
3772a991
JS		 10113 if (error) {
10114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 10115 "1413 Failed to initialize iocb list.\n");
10116 goto out_unset_driver_resource_s4;
3772a991
JS		 10117 }
10118
19ca7609 10119 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 10120 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 10121
3772a991
JS		 10122 /* Set up common device driver resources */
10123 error = lpfc_setup_driver_resource_phase2(phba);
10124 if (error) {
10125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10126 "1414 Failed to set up driver resource.\n");
3772a991
JS		 10127 goto out_free_iocb_list;
10128 }
10129
079b5c91
JS		 10130 /* Get the default values for Model Name and Description */
10131 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10132
3772a991
JS		 10133 /* Create SCSI host to the physical port */
10134 error = lpfc_create_shost(phba);
10135 if (error) {
10136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10137 "1415 Failed to create scsi host.\n");
3772a991
JS		 10138 goto out_unset_driver_resource;
10139 }
9399627f 10140
5b75da2f 10141 /* Configure sysfs attributes */
3772a991
JS		 10142 vport = phba->pport;
10143 error = lpfc_alloc_sysfs_attr(vport);
10144 if (error) {
9399627f 10145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10146 "1416 Failed to allocate sysfs attr\n");
3772a991 10147 goto out_destroy_shost;
98c9ea5c 10148 }
875fbdfe 10149
6669f9bb 10150 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 10151 /* Now, trying to enable interrupt and bring up the device */
5b75da2f 10152 cfg_mode = phba->cfg_use_msi;
5b75da2f 10153
7b15db32
JS		 10154 /* Put device to a known state before enabling interrupt */
10155 lpfc_stop_port(phba);
10156 /* Configure and enable interrupt */
10157 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10158 if (intr_mode == LPFC_INTR_ERROR) {
10159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10160 "0426 Failed to enable interrupt.\n");
10161 error = -ENODEV;
10162 goto out_free_sysfs_attr;
10163 }
10164 /* Default to single EQ for non-MSI-X */
10165 if (phba->intr_type != MSIX)
10166 adjusted_fcp_io_channel = 1;
10167 else
10168 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10169 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10170 /* Set up SLI-4 HBA */
10171 if (lpfc_sli4_hba_setup(phba)) {
10172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10173 "1421 Failed to set up hba\n");
10174 error = -ENODEV;
10175 goto out_disable_intr;
98c9ea5c 10176 }
858c9f6c 10177
7b15db32
JS		 10178 /* Log the current active interrupt mode */
10179 phba->intr_mode = intr_mode;
10180 lpfc_log_intr_mode(phba, intr_mode);
10181
3772a991
JS		 10182 /* Perform post initialization setup */
10183 lpfc_post_init_setup(phba);
dea3101e 10184
c71ab861
JS		 10185 /* check for firmware upgrade or downgrade */
10186 if (phba->cfg_request_firmware_upgrade)
10187 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
52d52440 10188
1c6834a7
JS		 10189 /* Check if there are static vports to be created. */
10190 lpfc_create_static_vport(phba);
dea3101e 10191 return 0;
10192
da0436e9
JS		 10193out_disable_intr:
10194 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 10195out_free_sysfs_attr:
10196 lpfc_free_sysfs_attr(vport);
3772a991
JS		 10197out_destroy_shost:
10198 lpfc_destroy_shost(phba);
10199out_unset_driver_resource:
10200 lpfc_unset_driver_resource_phase2(phba);
10201out_free_iocb_list:
10202 lpfc_free_iocb_list(phba);
da0436e9
JS		 10203out_unset_driver_resource_s4:
10204 lpfc_sli4_driver_resource_unset(phba);
10205out_unset_pci_mem_s4:
10206 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 10207out_disable_pci_dev:
10208 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 10209 if (shost)
10210 scsi_host_put(shost);
2e0fef85 10211out_free_phba:
3772a991 10212 lpfc_hba_free(phba);
dea3101e 10213 return error;
10214}
10215
e59058c4 10216/**
da0436e9 10217 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 10218 * @pdev: pointer to PCI device
10219 *
da0436e9
JS		 10220 * This routine is called from the kernel's PCI subsystem to device with
10221 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 10222 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10223 * device to be removed from the PCI subsystem properly.
e59058c4 10224 **/
6f039790 10225static void
da0436e9 10226lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 10227{
da0436e9 10228 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 10229 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 10230 struct lpfc_vport **vports;
da0436e9 10231 struct lpfc_hba *phba = vport->phba;
eada272d 10232 int i;
8a4df120 10233
da0436e9 10234 /* Mark the device unloading flag */
549e55cd 10235 spin_lock_irq(&phba->hbalock);
51ef4c26 10236 vport->load_flag |= FC_UNLOADING;
549e55cd 10237 spin_unlock_irq(&phba->hbalock);
2e0fef85 10238
da0436e9 10239 /* Free the HBA sysfs attributes */
858c9f6c
JS		 10240 lpfc_free_sysfs_attr(vport);
10241
eada272d
JS		 10242 /* Release all the vports against this physical port */
10243 vports = lpfc_create_vport_work_array(phba);
10244 if (vports != NULL)
587a37f6
JS		 10245 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10246 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10247 continue;
eada272d 10248 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 10249 }
eada272d
JS		 10250 lpfc_destroy_vport_work_array(phba, vports);
10251
10252 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 10253 fc_remove_host(shost);
10254 scsi_remove_host(shost);
da0436e9
JS		 10255
10256 /* Perform cleanup on the physical port */
87af33fe
JS		 10257 lpfc_cleanup(vport);
10258
2e0fef85 10259 /*
da0436e9 10260 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 10261 * clears the rings, discards all mailbox commands, and resets
da0436e9 10262 * the HBA FCoE function.
2e0fef85 10263 */
da0436e9
JS		 10264 lpfc_debugfs_terminate(vport);
10265 lpfc_sli4_hba_unset(phba);
a257bf90 10266
858c9f6c
JS		 10267 spin_lock_irq(&phba->hbalock);
10268 list_del_init(&vport->listentry);
10269 spin_unlock_irq(&phba->hbalock);
10270
3677a3a7 10271 /* Perform scsi free before driver resource_unset since scsi
da0436e9 10272 * buffers are released to their corresponding pools here.
2e0fef85
JS		 10273 */
10274 lpfc_scsi_free(phba);
67d12733 10275
da0436e9 10276 lpfc_sli4_driver_resource_unset(phba);
ed957684 10277
da0436e9
JS		 10278 /* Unmap adapter Control and Doorbell registers */
10279 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 10280
da0436e9
JS		 10281 /* Release PCI resources and disable device's PCI function */
10282 scsi_host_put(shost);
10283 lpfc_disable_pci_dev(phba);
2e0fef85 10284
da0436e9 10285 /* Finally, free the driver's device data structure */
3772a991 10286 lpfc_hba_free(phba);
2e0fef85 10287
da0436e9 10288 return;
dea3101e 10289}
10290
3a55b532 10291/**
da0436e9 10292 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 10293 * @pdev: pointer to PCI device
10294 * @msg: power management message
10295 *
da0436e9
JS		 10296 * This routine is called from the kernel's PCI subsystem to support system
10297 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10298 * this method, it quiesces the device by stopping the driver's worker
10299 * thread for the device, turning off device's interrupt and DMA, and bring
10300 * the device offline. Note that as the driver implements the minimum PM
10301 * requirements to a power-aware driver's PM support for suspend/resume -- all
10302 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10303 * method call will be treated as SUSPEND and the driver will fully
10304 * reinitialize its device during resume() method call, the driver will set
10305 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 10306 * according to the @msg provided by the PM.
3a55b532
JS		 10307 *
10308 * Return code
3772a991
JS		 10309 * 0 - driver suspended the device
10310 * Error otherwise
3a55b532
JS		 10311 **/
10312static int
da0436e9 10313lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 10314{
10315 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10316 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10317
10318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 10319 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 10320
10321 /* Bring down the device */
618a5230 10322 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3a55b532
JS		 10323 lpfc_offline(phba);
10324 kthread_stop(phba->worker_thread);
10325
10326 /* Disable interrupt from device */
da0436e9 10327 lpfc_sli4_disable_intr(phba);
5350d872 10328 lpfc_sli4_queue_destroy(phba);
3a55b532
JS		 10329
10330 /* Save device state to PCI config space */
10331 pci_save_state(pdev);
10332 pci_set_power_state(pdev, PCI_D3hot);
10333
10334 return 0;
10335}
10336
10337/**
da0436e9 10338 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 10339 * @pdev: pointer to PCI device
10340 *
da0436e9
JS		 10341 * This routine is called from the kernel's PCI subsystem to support system
10342 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10343 * this method, it restores the device's PCI config space state and fully
10344 * reinitializes the device and brings it online. Note that as the driver
10345 * implements the minimum PM requirements to a power-aware driver's PM for
10346 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10347 * to the suspend() method call will be treated as SUSPEND and the driver
10348 * will fully reinitialize its device during resume() method call, the device
10349 * will be set to PCI_D0 directly in PCI config space before restoring the
10350 * state.
3a55b532
JS		 10351 *
10352 * Return code
3772a991
JS		 10353 * 0 - driver suspended the device
10354 * Error otherwise
3a55b532
JS		 10355 **/
10356static int
da0436e9 10357lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 10358{
10359 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10360 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 10361 uint32_t intr_mode;
3a55b532
JS		 10362 int error;
10363
10364 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 10365 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 10366
10367 /* Restore device state from PCI config space */
10368 pci_set_power_state(pdev, PCI_D0);
10369 pci_restore_state(pdev);
1dfb5a47
JS		 10370
10371 /*
10372 * As the new kernel behavior of pci_restore_state() API call clears
10373 * device saved_state flag, need to save the restored state again.
10374 */
10375 pci_save_state(pdev);
10376
3a55b532
JS		 10377 if (pdev->is_busmaster)
10378 pci_set_master(pdev);
10379
da0436e9 10380 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 10381 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10382 "lpfc_worker_%d", phba->brd_no);
10383 if (IS_ERR(phba->worker_thread)) {
10384 error = PTR_ERR(phba->worker_thread);
10385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10386 "0293 PM resume failed to start worker "
3a55b532
JS		 10387 "thread: error=x%x.\n", error);
10388 return error;
10389 }
10390
5b75da2f 10391 /* Configure and enable interrupt */
da0436e9 10392 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 10393 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 10394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 10395 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 10396 return -EIO;
10397 } else
10398 phba->intr_mode = intr_mode;
3a55b532
JS		 10399
10400 /* Restart HBA and bring it online */
10401 lpfc_sli_brdrestart(phba);
10402 lpfc_online(phba);
10403
5b75da2f
JS		 10404 /* Log the current active interrupt mode */
10405 lpfc_log_intr_mode(phba, phba->intr_mode);
10406
3a55b532
JS		 10407 return 0;
10408}
10409
75baf696
JS		 10410/**
10411 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10412 * @phba: pointer to lpfc hba data structure.
10413 *
10414 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10415 * aborts all the outstanding SCSI I/Os to the pci device.
10416 **/
10417static void
10418lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10419{
10420 struct lpfc_sli *psli = &phba->sli;
10421 struct lpfc_sli_ring *pring;
10422
10423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10424 "2828 PCI channel I/O abort preparing for recovery\n");
10425 /*
10426 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10427 * and let the SCSI mid-layer to retry them to recover.
10428 */
10429 pring = &psli->ring[psli->fcp_ring];
10430 lpfc_sli_abort_iocb_ring(phba, pring);
10431}
10432
10433/**
10434 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10435 * @phba: pointer to lpfc hba data structure.
10436 *
10437 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10438 * disables the device interrupt and pci device, and aborts the internal FCP
10439 * pending I/Os.
10440 **/
10441static void
10442lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10443{
10444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10445 "2826 PCI channel disable preparing for reset\n");
10446
10447 /* Block any management I/Os to the device */
618a5230 10448 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
75baf696
JS		 10449
10450 /* Block all SCSI devices' I/Os on the host */
10451 lpfc_scsi_dev_block(phba);
10452
ea714f3d
JS		 10453 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10454 lpfc_sli_flush_fcp_rings(phba);
10455
75baf696
JS		 10456 /* stop all timers */
10457 lpfc_stop_hba_timers(phba);
10458
10459 /* Disable interrupt and pci device */
10460 lpfc_sli4_disable_intr(phba);
5350d872 10461 lpfc_sli4_queue_destroy(phba);
75baf696 10462 pci_disable_device(phba->pcidev);
75baf696
JS		 10463}
10464
10465/**
10466 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10467 * @phba: pointer to lpfc hba data structure.
10468 *
10469 * This routine is called to prepare the SLI4 device for PCI slot permanently
10470 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10471 * pending I/Os.
10472 **/
10473static void
10474lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10475{
10476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10477 "2827 PCI channel permanent disable for failure\n");
10478
10479 /* Block all SCSI devices' I/Os on the host */
10480 lpfc_scsi_dev_block(phba);
10481
10482 /* stop all timers */
10483 lpfc_stop_hba_timers(phba);
10484
10485 /* Clean up all driver's outstanding SCSI I/Os */
10486 lpfc_sli_flush_fcp_rings(phba);
10487}
10488
8d63f375 10489/**
da0436e9 10490 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 10491 * @pdev: pointer to PCI device.
10492 * @state: the current PCI connection state.
8d63f375 10493 *
da0436e9
JS		 10494 * This routine is called from the PCI subsystem for error handling to device
10495 * with SLI-4 interface spec. This function is called by the PCI subsystem
10496 * after a PCI bus error affecting this device has been detected. When this
10497 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10498 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10499 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 10500 *
10501 * Return codes
3772a991
JS		 10502 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10503 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 10504 **/
3772a991 10505static pci_ers_result_t
da0436e9 10506lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 10507{
75baf696
JS		 10508 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10509 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10510
10511 switch (state) {
10512 case pci_channel_io_normal:
10513 /* Non-fatal error, prepare for recovery */
10514 lpfc_sli4_prep_dev_for_recover(phba);
10515 return PCI_ERS_RESULT_CAN_RECOVER;
10516 case pci_channel_io_frozen:
10517 /* Fatal error, prepare for slot reset */
10518 lpfc_sli4_prep_dev_for_reset(phba);
10519 return PCI_ERS_RESULT_NEED_RESET;
10520 case pci_channel_io_perm_failure:
10521 /* Permanent failure, prepare for device down */
10522 lpfc_sli4_prep_dev_for_perm_failure(phba);
10523 return PCI_ERS_RESULT_DISCONNECT;
10524 default:
10525 /* Unknown state, prepare and request slot reset */
10526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10527 "2825 Unknown PCI error state: x%x\n", state);
10528 lpfc_sli4_prep_dev_for_reset(phba);
10529 return PCI_ERS_RESULT_NEED_RESET;
10530 }
8d63f375
LV		 10531}
10532
10533/**
da0436e9 10534 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 10535 * @pdev: pointer to PCI device.
10536 *
da0436e9
JS		 10537 * This routine is called from the PCI subsystem for error handling to device
10538 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10539 * restart the PCI card from scratch, as if from a cold-boot. During the
10540 * PCI subsystem error recovery, after the driver returns
3772a991 10541 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 10542 * recovery and then call this routine before calling the .resume method to
10543 * recover the device. This function will initialize the HBA device, enable
10544 * the interrupt, but it will just put the HBA to offline state without
10545 * passing any I/O traffic.
8d63f375 10546 *
e59058c4 10547 * Return codes
3772a991
JS		 10548 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10549 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 10550 */
3772a991 10551static pci_ers_result_t
da0436e9 10552lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 10553{
75baf696
JS		 10554 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10555 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10556 struct lpfc_sli *psli = &phba->sli;
10557 uint32_t intr_mode;
10558
10559 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10560 if (pci_enable_device_mem(pdev)) {
10561 printk(KERN_ERR "lpfc: Cannot re-enable "
10562 "PCI device after reset.\n");
10563 return PCI_ERS_RESULT_DISCONNECT;
10564 }
10565
10566 pci_restore_state(pdev);
0a96e975
JS		 10567
10568 /*
10569 * As the new kernel behavior of pci_restore_state() API call clears
10570 * device saved_state flag, need to save the restored state again.
10571 */
10572 pci_save_state(pdev);
10573
75baf696
JS		 10574 if (pdev->is_busmaster)
10575 pci_set_master(pdev);
10576
10577 spin_lock_irq(&phba->hbalock);
10578 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10579 spin_unlock_irq(&phba->hbalock);
10580
10581 /* Configure and enable interrupt */
10582 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10583 if (intr_mode == LPFC_INTR_ERROR) {
10584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10585 "2824 Cannot re-enable interrupt after "
10586 "slot reset.\n");
10587 return PCI_ERS_RESULT_DISCONNECT;
10588 } else
10589 phba->intr_mode = intr_mode;
10590
10591 /* Log the current active interrupt mode */
10592 lpfc_log_intr_mode(phba, phba->intr_mode);
10593
8d63f375
LV		 10594 return PCI_ERS_RESULT_RECOVERED;
10595}
10596
10597/**
da0436e9 10598 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 10599 * @pdev: pointer to PCI device
8d63f375 10600 *
3772a991 10601 * This routine is called from the PCI subsystem for error handling to device
da0436e9 10602 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 10603 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10604 * error recovery. After this call, traffic can start to flow from this device
10605 * again.
da0436e9 10606 **/
3772a991 10607static void
da0436e9 10608lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 10609{
75baf696
JS		 10610 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10611 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10612
10613 /*
10614 * In case of slot reset, as function reset is performed through
10615 * mailbox command which needs DMA to be enabled, this operation
10616 * has to be moved to the io resume phase. Taking device offline
10617 * will perform the necessary cleanup.
10618 */
10619 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10620 /* Perform device reset */
618a5230 10621 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
75baf696
JS		 10622 lpfc_offline(phba);
10623 lpfc_sli_brdrestart(phba);
10624 /* Bring the device back online */
10625 lpfc_online(phba);
10626 }
10627
10628 /* Clean up Advanced Error Reporting (AER) if needed */
10629 if (phba->hba_flag & HBA_AER_ENABLED)
10630 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 10631}
10632
3772a991
JS		 10633/**
10634 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10635 * @pdev: pointer to PCI device
10636 * @pid: pointer to PCI device identifier
10637 *
10638 * This routine is to be registered to the kernel's PCI subsystem. When an
10639 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10640 * at PCI device-specific information of the device and driver to see if the
10641 * driver state that it can support this kind of device. If the match is
10642 * successful, the driver core invokes this routine. This routine dispatches
10643 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10644 * do all the initialization that it needs to do to handle the HBA device
10645 * properly.
10646 *
10647 * Return code
10648 * 0 - driver can claim the device
10649 * negative value - driver can not claim the device
10650 **/
6f039790 10651static int
3772a991
JS		 10652lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10653{
10654 int rc;
8fa38513 10655 struct lpfc_sli_intf intf;
3772a991 10656
28baac74 10657 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 10658 return -ENODEV;
10659
8fa38513 10660 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 10661 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 10662 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 10663 else
3772a991 10664 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 10665
3772a991
JS		 10666 return rc;
10667}
10668
10669/**
10670 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10671 * @pdev: pointer to PCI device
10672 *
10673 * This routine is to be registered to the kernel's PCI subsystem. When an
10674 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10675 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10676 * remove routine, which will perform all the necessary cleanup for the
10677 * device to be removed from the PCI subsystem properly.
10678 **/
6f039790 10679static void
3772a991
JS		 10680lpfc_pci_remove_one(struct pci_dev *pdev)
10681{
10682 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10683 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10684
10685 switch (phba->pci_dev_grp) {
10686 case LPFC_PCI_DEV_LP:
10687 lpfc_pci_remove_one_s3(pdev);
10688 break;
da0436e9
JS		 10689 case LPFC_PCI_DEV_OC:
10690 lpfc_pci_remove_one_s4(pdev);
10691 break;
3772a991
JS		 10692 default:
10693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10694 "1424 Invalid PCI device group: 0x%x\n",
10695 phba->pci_dev_grp);
10696 break;
10697 }
10698 return;
10699}
10700
10701/**
10702 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10703 * @pdev: pointer to PCI device
10704 * @msg: power management message
10705 *
10706 * This routine is to be registered to the kernel's PCI subsystem to support
10707 * system Power Management (PM). When PM invokes this method, it dispatches
10708 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10709 * suspend the device.
10710 *
10711 * Return code
10712 * 0 - driver suspended the device
10713 * Error otherwise
10714 **/
10715static int
10716lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10717{
10718 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10719 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10720 int rc = -ENODEV;
10721
10722 switch (phba->pci_dev_grp) {
10723 case LPFC_PCI_DEV_LP:
10724 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10725 break;
da0436e9
JS		 10726 case LPFC_PCI_DEV_OC:
10727 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10728 break;
3772a991
JS		 10729 default:
10730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10731 "1425 Invalid PCI device group: 0x%x\n",
10732 phba->pci_dev_grp);
10733 break;
10734 }
10735 return rc;
10736}
10737
10738/**
10739 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10740 * @pdev: pointer to PCI device
10741 *
10742 * This routine is to be registered to the kernel's PCI subsystem to support
10743 * system Power Management (PM). When PM invokes this method, it dispatches
10744 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10745 * resume the device.
10746 *
10747 * Return code
10748 * 0 - driver suspended the device
10749 * Error otherwise
10750 **/
10751static int
10752lpfc_pci_resume_one(struct pci_dev *pdev)
10753{
10754 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10755 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10756 int rc = -ENODEV;
10757
10758 switch (phba->pci_dev_grp) {
10759 case LPFC_PCI_DEV_LP:
10760 rc = lpfc_pci_resume_one_s3(pdev);
10761 break;
da0436e9
JS		 10762 case LPFC_PCI_DEV_OC:
10763 rc = lpfc_pci_resume_one_s4(pdev);
10764 break;
3772a991
JS		 10765 default:
10766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10767 "1426 Invalid PCI device group: 0x%x\n",
10768 phba->pci_dev_grp);
10769 break;
10770 }
10771 return rc;
10772}
10773
10774/**
10775 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10776 * @pdev: pointer to PCI device.
10777 * @state: the current PCI connection state.
10778 *
10779 * This routine is registered to the PCI subsystem for error handling. This
10780 * function is called by the PCI subsystem after a PCI bus error affecting
10781 * this device has been detected. When this routine is invoked, it dispatches
10782 * the action to the proper SLI-3 or SLI-4 device error detected handling
10783 * routine, which will perform the proper error detected operation.
10784 *
10785 * Return codes
10786 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10787 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10788 **/
10789static pci_ers_result_t
10790lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10791{
10792 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10793 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10794 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10795
10796 switch (phba->pci_dev_grp) {
10797 case LPFC_PCI_DEV_LP:
10798 rc = lpfc_io_error_detected_s3(pdev, state);
10799 break;
da0436e9
JS		 10800 case LPFC_PCI_DEV_OC:
10801 rc = lpfc_io_error_detected_s4(pdev, state);
10802 break;
3772a991
JS		 10803 default:
10804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10805 "1427 Invalid PCI device group: 0x%x\n",
10806 phba->pci_dev_grp);
10807 break;
10808 }
10809 return rc;
10810}
10811
10812/**
10813 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10814 * @pdev: pointer to PCI device.
10815 *
10816 * This routine is registered to the PCI subsystem for error handling. This
10817 * function is called after PCI bus has been reset to restart the PCI card
10818 * from scratch, as if from a cold-boot. When this routine is invoked, it
10819 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10820 * routine, which will perform the proper device reset.
10821 *
10822 * Return codes
10823 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10824 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10825 **/
10826static pci_ers_result_t
10827lpfc_io_slot_reset(struct pci_dev *pdev)
10828{
10829 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10830 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10831 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10832
10833 switch (phba->pci_dev_grp) {
10834 case LPFC_PCI_DEV_LP:
10835 rc = lpfc_io_slot_reset_s3(pdev);
10836 break;
da0436e9
JS		 10837 case LPFC_PCI_DEV_OC:
10838 rc = lpfc_io_slot_reset_s4(pdev);
10839 break;
3772a991
JS		 10840 default:
10841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10842 "1428 Invalid PCI device group: 0x%x\n",
10843 phba->pci_dev_grp);
10844 break;
10845 }
10846 return rc;
10847}
10848
10849/**
10850 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10851 * @pdev: pointer to PCI device
10852 *
10853 * This routine is registered to the PCI subsystem for error handling. It
10854 * is called when kernel error recovery tells the lpfc driver that it is
10855 * OK to resume normal PCI operation after PCI bus error recovery. When
10856 * this routine is invoked, it dispatches the action to the proper SLI-3
10857 * or SLI-4 device io_resume routine, which will resume the device operation.
10858 **/
10859static void
10860lpfc_io_resume(struct pci_dev *pdev)
10861{
10862 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10863 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10864
10865 switch (phba->pci_dev_grp) {
10866 case LPFC_PCI_DEV_LP:
10867 lpfc_io_resume_s3(pdev);
10868 break;
da0436e9
JS		 10869 case LPFC_PCI_DEV_OC:
10870 lpfc_io_resume_s4(pdev);
10871 break;
3772a991
JS		 10872 default:
10873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10874 "1429 Invalid PCI device group: 0x%x\n",
10875 phba->pci_dev_grp);
10876 break;
10877 }
10878 return;
10879}
10880
1ba981fd
JS		 10881/**
10882 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
10883 * @phba: pointer to lpfc hba data structure.
10884 *
10885 * This routine checks to see if OAS is supported for this adapter. If
10886 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
10887 * the enable oas flag is cleared and the pool created for OAS device data
10888 * is destroyed.
10889 *
10890 **/
10891void
10892lpfc_sli4_oas_verify(struct lpfc_hba *phba)
10893{
10894
10895 if (!phba->cfg_EnableXLane)
10896 return;
10897
10898 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
10899 phba->cfg_fof = 1;
10900 } else {
10901 phba->cfg_EnableXLane = 0;
10902 if (phba->device_data_mem_pool)
10903 mempool_destroy(phba->device_data_mem_pool);
10904 phba->device_data_mem_pool = NULL;
10905 }
10906
10907 return;
10908}
10909
10910/**
10911 * lpfc_fof_queue_setup - Set up all the fof queues
10912 * @phba: pointer to lpfc hba data structure.
10913 *
10914 * This routine is invoked to set up all the fof queues for the FC HBA
10915 * operation.
10916 *
10917 * Return codes
10918 * 0 - successful
10919 * -ENOMEM - No available memory
10920 **/
10921int
10922lpfc_fof_queue_setup(struct lpfc_hba *phba)
10923{
10924 struct lpfc_sli *psli = &phba->sli;
10925 int rc;
10926
10927 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
10928 if (rc)
10929 return -ENOMEM;
10930
10931 if (phba->cfg_EnableXLane) {
10932
10933 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
10934 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
10935 if (rc)
10936 goto out_oas_cq;
10937
10938 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
10939 phba->sli4_hba.oas_cq, LPFC_FCP);
10940 if (rc)
10941 goto out_oas_wq;
10942
10943 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
10944 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
10945 }
10946
10947 return 0;
10948
10949out_oas_wq:
10950 if (phba->cfg_EnableXLane)
10951 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
10952out_oas_cq:
10953 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
10954 return rc;
10955
10956}
10957
10958/**
10959 * lpfc_fof_queue_create - Create all the fof queues
10960 * @phba: pointer to lpfc hba data structure.
10961 *
10962 * This routine is invoked to allocate all the fof queues for the FC HBA
10963 * operation. For each SLI4 queue type, the parameters such as queue entry
10964 * count (queue depth) shall be taken from the module parameter. For now,
10965 * we just use some constant number as place holder.
10966 *
10967 * Return codes
10968 * 0 - successful
10969 * -ENOMEM - No availble memory
10970 * -EIO - The mailbox failed to complete successfully.
10971 **/
10972int
10973lpfc_fof_queue_create(struct lpfc_hba *phba)
10974{
10975 struct lpfc_queue *qdesc;
10976
10977 /* Create FOF EQ */
10978 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
10979 phba->sli4_hba.eq_ecount);
10980 if (!qdesc)
10981 goto out_error;
10982
10983 phba->sli4_hba.fof_eq = qdesc;
10984
10985 if (phba->cfg_EnableXLane) {
10986
10987 /* Create OAS CQ */
10988 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
10989 phba->sli4_hba.cq_ecount);
10990 if (!qdesc)
10991 goto out_error;
10992
10993 phba->sli4_hba.oas_cq = qdesc;
10994
10995 /* Create OAS WQ */
10996 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
10997 phba->sli4_hba.wq_ecount);
10998 if (!qdesc)
10999 goto out_error;
11000
11001 phba->sli4_hba.oas_wq = qdesc;
11002
11003 }
11004 return 0;
11005
11006out_error:
11007 lpfc_fof_queue_destroy(phba);
11008 return -ENOMEM;
11009}
11010
11011/**
11012 * lpfc_fof_queue_destroy - Destroy all the fof queues
11013 * @phba: pointer to lpfc hba data structure.
11014 *
11015 * This routine is invoked to release all the SLI4 queues with the FC HBA
11016 * operation.
11017 *
11018 * Return codes
11019 * 0 - successful
11020 **/
11021int
11022lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11023{
11024 /* Release FOF Event queue */
11025 if (phba->sli4_hba.fof_eq != NULL) {
11026 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11027 phba->sli4_hba.fof_eq = NULL;
11028 }
11029
11030 /* Release OAS Completion queue */
11031 if (phba->sli4_hba.oas_cq != NULL) {
11032 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11033 phba->sli4_hba.oas_cq = NULL;
11034 }
11035
11036 /* Release OAS Work queue */
11037 if (phba->sli4_hba.oas_wq != NULL) {
11038 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11039 phba->sli4_hba.oas_wq = NULL;
11040 }
11041 return 0;
11042}
11043
dea3101e 11044static struct pci_device_id lpfc_id_table[] = {
11045 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11046 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 11047 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11048 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 11049 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11050 PCI_ANY_ID, PCI_ANY_ID, },
11051 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11052 PCI_ANY_ID, PCI_ANY_ID, },
11053 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11054 PCI_ANY_ID, PCI_ANY_ID, },
11055 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11056 PCI_ANY_ID, PCI_ANY_ID, },
11057 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11058 PCI_ANY_ID, PCI_ANY_ID, },
11059 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11060 PCI_ANY_ID, PCI_ANY_ID, },
11061 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11062 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 11063 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11064 PCI_ANY_ID, PCI_ANY_ID, },
11065 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11066 PCI_ANY_ID, PCI_ANY_ID, },
11067 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11068 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 11069 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11070 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 11071 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11072 PCI_ANY_ID, PCI_ANY_ID, },
11073 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11074 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 11075 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11076 PCI_ANY_ID, PCI_ANY_ID, },
11077 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11078 PCI_ANY_ID, PCI_ANY_ID, },
11079 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11080 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 11081 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11082 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 11083 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11084 PCI_ANY_ID, PCI_ANY_ID, },
11085 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11086 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 11087 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11088 PCI_ANY_ID, PCI_ANY_ID, },
11089 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11090 PCI_ANY_ID, PCI_ANY_ID, },
11091 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11092 PCI_ANY_ID, PCI_ANY_ID, },
11093 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11094 PCI_ANY_ID, PCI_ANY_ID, },
11095 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11096 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 11097 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11098 PCI_ANY_ID, PCI_ANY_ID, },
11099 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11100 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 11101 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11102 PCI_ANY_ID, PCI_ANY_ID, },
11103 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11104 PCI_ANY_ID, PCI_ANY_ID, },
11105 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11106 PCI_ANY_ID, PCI_ANY_ID, },
11107 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11108 PCI_ANY_ID, PCI_ANY_ID, },
11109 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11110 PCI_ANY_ID, PCI_ANY_ID, },
11111 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11112 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 11113 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11114 PCI_ANY_ID, PCI_ANY_ID, },
11115 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11116 PCI_ANY_ID, PCI_ANY_ID, },
11117 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11118 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 11119 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11120 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 11121 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11122 PCI_ANY_ID, PCI_ANY_ID, },
11123 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 11124 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 11125 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11126 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 11127 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11128 PCI_ANY_ID, PCI_ANY_ID, },
11129 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11130 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 11131 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11132 PCI_ANY_ID, PCI_ANY_ID, },
11133 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11134 PCI_ANY_ID, PCI_ANY_ID, },
f8cafd38
JS		 11135 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11136 PCI_ANY_ID, PCI_ANY_ID, },
11137 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11138 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 11139 { 0 }
11140};
11141
11142MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11143
a55b2d21 11144static const struct pci_error_handlers lpfc_err_handler = {
8d63f375
LV		 11145 .error_detected = lpfc_io_error_detected,
11146 .slot_reset = lpfc_io_slot_reset,
11147 .resume = lpfc_io_resume,
11148};
11149
dea3101e 11150static struct pci_driver lpfc_driver = {
11151 .name = LPFC_DRIVER_NAME,
11152 .id_table = lpfc_id_table,
11153 .probe = lpfc_pci_probe_one,
6f039790 11154 .remove = lpfc_pci_remove_one,
3a55b532 11155 .suspend = lpfc_pci_suspend_one,
3772a991 11156 .resume = lpfc_pci_resume_one,
2e0fef85 11157 .err_handler = &lpfc_err_handler,
dea3101e 11158};
11159
3ef6d24c 11160static const struct file_operations lpfc_mgmt_fop = {
858feacd 11161 .owner = THIS_MODULE,
3ef6d24c
JS		 11162};
11163
11164static struct miscdevice lpfc_mgmt_dev = {
11165 .minor = MISC_DYNAMIC_MINOR,
11166 .name = "lpfcmgmt",
11167 .fops = &lpfc_mgmt_fop,
11168};
11169
e59058c4 11170/**
3621a710 11171 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 11172 *
11173 * This routine is to be invoked when the lpfc module is loaded into the
11174 * kernel. The special kernel macro module_init() is used to indicate the
11175 * role of this routine to the kernel as lpfc module entry point.
11176 *
11177 * Return codes
11178 * 0 - successful
11179 * -ENOMEM - FC attach transport failed
11180 * all others - failed
11181 */
dea3101e 11182static int __init
11183lpfc_init(void)
11184{
7bb03bbf 11185 int cpu;
dea3101e 11186 int error = 0;
11187
11188 printk(LPFC_MODULE_DESC "\n");
c44ce173 11189 printk(LPFC_COPYRIGHT "\n");
dea3101e 11190
3ef6d24c
JS		 11191 error = misc_register(&lpfc_mgmt_dev);
11192 if (error)
11193 printk(KERN_ERR "Could not register lpfcmgmt device, "
11194 "misc_register returned with status %d", error);
11195
7ee5d43e
JS		 11196 if (lpfc_enable_npiv) {
11197 lpfc_transport_functions.vport_create = lpfc_vport_create;
11198 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11199 }
dea3101e 11200 lpfc_transport_template =
11201 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 11202 if (lpfc_transport_template == NULL)
dea3101e 11203 return -ENOMEM;
7ee5d43e 11204 if (lpfc_enable_npiv) {
7ee5d43e 11205 lpfc_vport_transport_template =
98c9ea5c
JS		 11206 fc_attach_transport(&lpfc_vport_transport_functions);
11207 if (lpfc_vport_transport_template == NULL) {
11208 fc_release_transport(lpfc_transport_template);
7ee5d43e 11209 return -ENOMEM;
98c9ea5c 11210 }
7ee5d43e 11211 }
7bb03bbf
JS		 11212
11213 /* Initialize in case vector mapping is needed */
b246de17
JS		 11214 lpfc_used_cpu = NULL;
11215 lpfc_present_cpu = 0;
11216 for_each_present_cpu(cpu)
11217 lpfc_present_cpu++;
7bb03bbf 11218
dea3101e 11219 error = pci_register_driver(&lpfc_driver);
92d7f7b0 11220 if (error) {
dea3101e 11221 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 11222 if (lpfc_enable_npiv)
11223 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 11224 }
dea3101e 11225
11226 return error;
11227}
11228
e59058c4 11229/**
3621a710 11230 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 11231 *
11232 * This routine is invoked when the lpfc module is removed from the kernel.
11233 * The special kernel macro module_exit() is used to indicate the role of
11234 * this routine to the kernel as lpfc module exit point.
11235 */
dea3101e 11236static void __exit
11237lpfc_exit(void)
11238{
3ef6d24c 11239 misc_deregister(&lpfc_mgmt_dev);
dea3101e 11240 pci_unregister_driver(&lpfc_driver);
11241 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 11242 if (lpfc_enable_npiv)
11243 fc_release_transport(lpfc_vport_transport_template);
81301a9b 11244 if (_dump_buf_data) {
6a9c52cf
JS		 11245 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11246 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 11247 (1L << _dump_buf_data_order), _dump_buf_data);
11248 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11249 }
11250
11251 if (_dump_buf_dif) {
6a9c52cf
JS		 11252 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11253 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 11254 (1L << _dump_buf_dif_order), _dump_buf_dif);
11255 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11256 }
b246de17 11257 kfree(lpfc_used_cpu);
dea3101e 11258}
11259
11260module_init(lpfc_init);
11261module_exit(lpfc_exit);
11262MODULE_LICENSE("GPL");
11263MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11264MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11265MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux 6.x block layer and io_uring tree(s)