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Merge branch 'mini2440-dev-unlikely' into mini2440-dev
[linux-2.6/mini2440.git] / drivers / scsi / lpfc / lpfc_init.c
blob562d8cee874bf42cb5aefcb6546da7aa7b1d1211
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
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. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/spinlock.h>
30 #include <linux/ctype.h>
31
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36
37 #include "lpfc_hw4.h"
38 #include "lpfc_hw.h"
39 #include "lpfc_sli.h"
40 #include "lpfc_sli4.h"
41 #include "lpfc_nl.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
44 #include "lpfc.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_crtn.h"
47 #include "lpfc_vport.h"
48 #include "lpfc_version.h"
49
50 char *_dump_buf_data;
51 unsigned long _dump_buf_data_order;
52 char *_dump_buf_dif;
53 unsigned long _dump_buf_dif_order;
54 spinlock_t _dump_buf_lock;
55
56 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
57 static int lpfc_post_rcv_buf(struct lpfc_hba *);
58 static int lpfc_sli4_queue_create(struct lpfc_hba *);
59 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
60 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
61 static int lpfc_setup_endian_order(struct lpfc_hba *);
62 static int lpfc_sli4_read_config(struct lpfc_hba *);
63 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
64 static void lpfc_free_sgl_list(struct lpfc_hba *);
65 static int lpfc_init_sgl_list(struct lpfc_hba *);
66 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
67 static void lpfc_free_active_sgl(struct lpfc_hba *);
68 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
69 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
70 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
71 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
72 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
73
74 static struct scsi_transport_template *lpfc_transport_template = NULL;
75 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
76 static DEFINE_IDR(lpfc_hba_index);
77
78 /**
79 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
80 * @phba: pointer to lpfc hba data structure.
81 *
82 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
83 * mailbox command. It retrieves the revision information from the HBA and
84 * collects the Vital Product Data (VPD) about the HBA for preparing the
85 * configuration of the HBA.
86 *
87 * Return codes:
88 * 0 - success.
89 * -ERESTART - requests the SLI layer to reset the HBA and try again.
90 * Any other value - indicates an error.
91 **/
92 int
93 lpfc_config_port_prep(struct lpfc_hba *phba)
94 {
95 lpfc_vpd_t *vp = &phba->vpd;
96 int i = 0, rc;
97 LPFC_MBOXQ_t *pmb;
98 MAILBOX_t *mb;
99 char *lpfc_vpd_data = NULL;
100 uint16_t offset = 0;
101 static char licensed[56] =
102 "key unlock for use with gnu public licensed code only\0";
103 static int init_key = 1;
104
105 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
106 if (!pmb) {
107 phba->link_state = LPFC_HBA_ERROR;
108 return -ENOMEM;
109 }
110
111 mb = &pmb->u.mb;
112 phba->link_state = LPFC_INIT_MBX_CMDS;
113
114 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
115 if (init_key) {
116 uint32_t *ptext = (uint32_t *) licensed;
117
118 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
119 *ptext = cpu_to_be32(*ptext);
120 init_key = 0;
121 }
122
123 lpfc_read_nv(phba, pmb);
124 memset((char*)mb->un.varRDnvp.rsvd3, 0,
125 sizeof (mb->un.varRDnvp.rsvd3));
126 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
127 sizeof (licensed));
128
129 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
130
131 if (rc != MBX_SUCCESS) {
132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
133 "0324 Config Port initialization "
134 "error, mbxCmd x%x READ_NVPARM, "
135 "mbxStatus x%x\n",
136 mb->mbxCommand, mb->mbxStatus);
137 mempool_free(pmb, phba->mbox_mem_pool);
138 return -ERESTART;
139 }
140 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
141 sizeof(phba->wwnn));
142 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
143 sizeof(phba->wwpn));
144 }
145
146 phba->sli3_options = 0x0;
147
148 /* Setup and issue mailbox READ REV command */
149 lpfc_read_rev(phba, pmb);
150 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
151 if (rc != MBX_SUCCESS) {
152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
153 "0439 Adapter failed to init, mbxCmd x%x "
154 "READ_REV, mbxStatus x%x\n",
155 mb->mbxCommand, mb->mbxStatus);
156 mempool_free( pmb, phba->mbox_mem_pool);
157 return -ERESTART;
158 }
159
160
161 /*
162 * The value of rr must be 1 since the driver set the cv field to 1.
163 * This setting requires the FW to set all revision fields.
164 */
165 if (mb->un.varRdRev.rr == 0) {
166 vp->rev.rBit = 0;
167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
168 "0440 Adapter failed to init, READ_REV has "
169 "missing revision information.\n");
170 mempool_free(pmb, phba->mbox_mem_pool);
171 return -ERESTART;
172 }
173
174 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
175 mempool_free(pmb, phba->mbox_mem_pool);
176 return -EINVAL;
177 }
178
179 /* Save information as VPD data */
180 vp->rev.rBit = 1;
181 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
182 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
183 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
184 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
185 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
186 vp->rev.biuRev = mb->un.varRdRev.biuRev;
187 vp->rev.smRev = mb->un.varRdRev.smRev;
188 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
189 vp->rev.endecRev = mb->un.varRdRev.endecRev;
190 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
191 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
192 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
193 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
194 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
195 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
196
197 /* If the sli feature level is less then 9, we must
198 * tear down all RPIs and VPIs on link down if NPIV
199 * is enabled.
200 */
201 if (vp->rev.feaLevelHigh < 9)
202 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
203
204 if (lpfc_is_LC_HBA(phba->pcidev->device))
205 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
206 sizeof (phba->RandomData));
207
208 /* Get adapter VPD information */
209 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
210 if (!lpfc_vpd_data)
211 goto out_free_mbox;
212
213 do {
214 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
215 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
216
217 if (rc != MBX_SUCCESS) {
218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
219 "0441 VPD not present on adapter, "
220 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
221 mb->mbxCommand, mb->mbxStatus);
222 mb->un.varDmp.word_cnt = 0;
223 }
224 /* dump mem may return a zero when finished or we got a
225 * mailbox error, either way we are done.
226 */
227 if (mb->un.varDmp.word_cnt == 0)
228 break;
229 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
230 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
231 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
232 lpfc_vpd_data + offset,
233 mb->un.varDmp.word_cnt);
234 offset += mb->un.varDmp.word_cnt;
235 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
236 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
237
238 kfree(lpfc_vpd_data);
239 out_free_mbox:
240 mempool_free(pmb, phba->mbox_mem_pool);
241 return 0;
242 }
243
244 /**
245 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
246 * @phba: pointer to lpfc hba data structure.
247 * @pmboxq: pointer to the driver internal queue element for mailbox command.
248 *
249 * This is the completion handler for driver's configuring asynchronous event
250 * mailbox command to the device. If the mailbox command returns successfully,
251 * it will set internal async event support flag to 1; otherwise, it will
252 * set internal async event support flag to 0.
253 **/
254 static void
255 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
256 {
257 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
258 phba->temp_sensor_support = 1;
259 else
260 phba->temp_sensor_support = 0;
261 mempool_free(pmboxq, phba->mbox_mem_pool);
262 return;
263 }
264
265 /**
266 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
267 * @phba: pointer to lpfc hba data structure.
268 * @pmboxq: pointer to the driver internal queue element for mailbox command.
269 *
270 * This is the completion handler for dump mailbox command for getting
271 * wake up parameters. When this command complete, the response contain
272 * Option rom version of the HBA. This function translate the version number
273 * into a human readable string and store it in OptionROMVersion.
274 **/
275 static void
276 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
277 {
278 struct prog_id *prg;
279 uint32_t prog_id_word;
280 char dist = ' ';
281 /* character array used for decoding dist type. */
282 char dist_char[] = "nabx";
283
284 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
285 mempool_free(pmboxq, phba->mbox_mem_pool);
286 return;
287 }
288
289 prg = (struct prog_id *) &prog_id_word;
290
291 /* word 7 contain option rom version */
292 prog_id_word = pmboxq->u.mb.un.varWords[7];
293
294 /* Decode the Option rom version word to a readable string */
295 if (prg->dist < 4)
296 dist = dist_char[prg->dist];
297
298 if ((prg->dist == 3) && (prg->num == 0))
299 sprintf(phba->OptionROMVersion, "%d.%d%d",
300 prg->ver, prg->rev, prg->lev);
301 else
302 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
303 prg->ver, prg->rev, prg->lev,
304 dist, prg->num);
305 mempool_free(pmboxq, phba->mbox_mem_pool);
306 return;
307 }
308
309 /**
310 * lpfc_config_port_post - Perform lpfc initialization after config port
311 * @phba: pointer to lpfc hba data structure.
312 *
313 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
314 * command call. It performs all internal resource and state setups on the
315 * port: post IOCB buffers, enable appropriate host interrupt attentions,
316 * ELS ring timers, etc.
317 *
318 * Return codes
319 * 0 - success.
320 * Any other value - error.
321 **/
322 int
323 lpfc_config_port_post(struct lpfc_hba *phba)
324 {
325 struct lpfc_vport *vport = phba->pport;
326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
327 LPFC_MBOXQ_t *pmb;
328 MAILBOX_t *mb;
329 struct lpfc_dmabuf *mp;
330 struct lpfc_sli *psli = &phba->sli;
331 uint32_t status, timeout;
332 int i, j;
333 int rc;
334
335 spin_lock_irq(&phba->hbalock);
336 /*
337 * If the Config port completed correctly the HBA is not
338 * over heated any more.
339 */
340 if (phba->over_temp_state == HBA_OVER_TEMP)
341 phba->over_temp_state = HBA_NORMAL_TEMP;
342 spin_unlock_irq(&phba->hbalock);
343
344 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
345 if (!pmb) {
346 phba->link_state = LPFC_HBA_ERROR;
347 return -ENOMEM;
348 }
349 mb = &pmb->u.mb;
350
351 /* Get login parameters for NID. */
352 lpfc_read_sparam(phba, pmb, 0);
353 pmb->vport = vport;
354 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
356 "0448 Adapter failed init, mbxCmd x%x "
357 "READ_SPARM mbxStatus x%x\n",
358 mb->mbxCommand, mb->mbxStatus);
359 phba->link_state = LPFC_HBA_ERROR;
360 mp = (struct lpfc_dmabuf *) pmb->context1;
361 mempool_free( pmb, phba->mbox_mem_pool);
362 lpfc_mbuf_free(phba, mp->virt, mp->phys);
363 kfree(mp);
364 return -EIO;
365 }
366
367 mp = (struct lpfc_dmabuf *) pmb->context1;
368
369 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
370 lpfc_mbuf_free(phba, mp->virt, mp->phys);
371 kfree(mp);
372 pmb->context1 = NULL;
373
374 if (phba->cfg_soft_wwnn)
375 u64_to_wwn(phba->cfg_soft_wwnn,
376 vport->fc_sparam.nodeName.u.wwn);
377 if (phba->cfg_soft_wwpn)
378 u64_to_wwn(phba->cfg_soft_wwpn,
379 vport->fc_sparam.portName.u.wwn);
380 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
381 sizeof (struct lpfc_name));
382 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
383 sizeof (struct lpfc_name));
384
385 /* Update the fc_host data structures with new wwn. */
386 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
387 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
388 fc_host_max_npiv_vports(shost) = phba->max_vpi;
389
390 /* If no serial number in VPD data, use low 6 bytes of WWNN */
391 /* This should be consolidated into parse_vpd ? - mr */
392 if (phba->SerialNumber[0] == 0) {
393 uint8_t *outptr;
394
395 outptr = &vport->fc_nodename.u.s.IEEE[0];
396 for (i = 0; i < 12; i++) {
397 status = *outptr++;
398 j = ((status & 0xf0) >> 4);
399 if (j <= 9)
400 phba->SerialNumber[i] =
401 (char)((uint8_t) 0x30 + (uint8_t) j);
402 else
403 phba->SerialNumber[i] =
404 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
405 i++;
406 j = (status & 0xf);
407 if (j <= 9)
408 phba->SerialNumber[i] =
409 (char)((uint8_t) 0x30 + (uint8_t) j);
410 else
411 phba->SerialNumber[i] =
412 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
413 }
414 }
415
416 lpfc_read_config(phba, pmb);
417 pmb->vport = vport;
418 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
420 "0453 Adapter failed to init, mbxCmd x%x "
421 "READ_CONFIG, mbxStatus x%x\n",
422 mb->mbxCommand, mb->mbxStatus);
423 phba->link_state = LPFC_HBA_ERROR;
424 mempool_free( pmb, phba->mbox_mem_pool);
425 return -EIO;
426 }
427
428 /* Check if the port is disabled */
429 lpfc_sli_read_link_ste(phba);
430
431 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
432 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
433 phba->cfg_hba_queue_depth =
434 (mb->un.varRdConfig.max_xri + 1) -
435 lpfc_sli4_get_els_iocb_cnt(phba);
436
437 phba->lmt = mb->un.varRdConfig.lmt;
438
439 /* Get the default values for Model Name and Description */
440 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
441
442 if ((phba->cfg_link_speed > LINK_SPEED_10G)
443 || ((phba->cfg_link_speed == LINK_SPEED_1G)
444 && !(phba->lmt & LMT_1Gb))
445 || ((phba->cfg_link_speed == LINK_SPEED_2G)
446 && !(phba->lmt & LMT_2Gb))
447 || ((phba->cfg_link_speed == LINK_SPEED_4G)
448 && !(phba->lmt & LMT_4Gb))
449 || ((phba->cfg_link_speed == LINK_SPEED_8G)
450 && !(phba->lmt & LMT_8Gb))
451 || ((phba->cfg_link_speed == LINK_SPEED_10G)
452 && !(phba->lmt & LMT_10Gb))) {
453 /* Reset link speed to auto */
454 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
455 "1302 Invalid speed for this board: "
456 "Reset link speed to auto: x%x\n",
457 phba->cfg_link_speed);
458 phba->cfg_link_speed = LINK_SPEED_AUTO;
459 }
460
461 phba->link_state = LPFC_LINK_DOWN;
462
463 /* Only process IOCBs on ELS ring till hba_state is READY */
464 if (psli->ring[psli->extra_ring].cmdringaddr)
465 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
466 if (psli->ring[psli->fcp_ring].cmdringaddr)
467 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
468 if (psli->ring[psli->next_ring].cmdringaddr)
469 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
470
471 /* Post receive buffers for desired rings */
472 if (phba->sli_rev != 3)
473 lpfc_post_rcv_buf(phba);
474
475 /*
476 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
477 */
478 if (phba->intr_type == MSIX) {
479 rc = lpfc_config_msi(phba, pmb);
480 if (rc) {
481 mempool_free(pmb, phba->mbox_mem_pool);
482 return -EIO;
483 }
484 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
485 if (rc != MBX_SUCCESS) {
486 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
487 "0352 Config MSI mailbox command "
488 "failed, mbxCmd x%x, mbxStatus x%x\n",
489 pmb->u.mb.mbxCommand,
490 pmb->u.mb.mbxStatus);
491 mempool_free(pmb, phba->mbox_mem_pool);
492 return -EIO;
493 }
494 }
495
496 spin_lock_irq(&phba->hbalock);
497 /* Initialize ERATT handling flag */
498 phba->hba_flag &= ~HBA_ERATT_HANDLED;
499
500 /* Enable appropriate host interrupts */
501 status = readl(phba->HCregaddr);
502 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
503 if (psli->num_rings > 0)
504 status |= HC_R0INT_ENA;
505 if (psli->num_rings > 1)
506 status |= HC_R1INT_ENA;
507 if (psli->num_rings > 2)
508 status |= HC_R2INT_ENA;
509 if (psli->num_rings > 3)
510 status |= HC_R3INT_ENA;
511
512 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
513 (phba->cfg_poll & DISABLE_FCP_RING_INT))
514 status &= ~(HC_R0INT_ENA);
515
516 writel(status, phba->HCregaddr);
517 readl(phba->HCregaddr); /* flush */
518 spin_unlock_irq(&phba->hbalock);
519
520 /* Set up ring-0 (ELS) timer */
521 timeout = phba->fc_ratov * 2;
522 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
523 /* Set up heart beat (HB) timer */
524 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
525 phba->hb_outstanding = 0;
526 phba->last_completion_time = jiffies;
527 /* Set up error attention (ERATT) polling timer */
528 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
529
530 if (phba->hba_flag & LINK_DISABLED) {
531 lpfc_printf_log(phba,
532 KERN_ERR, LOG_INIT,
533 "2598 Adapter Link is disabled.\n");
534 lpfc_down_link(phba, pmb);
535 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
536 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
537 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
538 lpfc_printf_log(phba,
539 KERN_ERR, LOG_INIT,
540 "2599 Adapter failed to issue DOWN_LINK"
541 " mbox command rc 0x%x\n", rc);
542
543 mempool_free(pmb, phba->mbox_mem_pool);
544 return -EIO;
545 }
546 } else {
547 lpfc_init_link(phba, pmb, phba->cfg_topology,
548 phba->cfg_link_speed);
549 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
550 lpfc_set_loopback_flag(phba);
551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
552 if (rc != MBX_SUCCESS) {
553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
554 "0454 Adapter failed to init, mbxCmd x%x "
555 "INIT_LINK, mbxStatus x%x\n",
556 mb->mbxCommand, mb->mbxStatus);
557
558 /* Clear all interrupt enable conditions */
559 writel(0, phba->HCregaddr);
560 readl(phba->HCregaddr); /* flush */
561 /* Clear all pending interrupts */
562 writel(0xffffffff, phba->HAregaddr);
563 readl(phba->HAregaddr); /* flush */
564
565 phba->link_state = LPFC_HBA_ERROR;
566 if (rc != MBX_BUSY)
567 mempool_free(pmb, phba->mbox_mem_pool);
568 return -EIO;
569 }
570 }
571 /* MBOX buffer will be freed in mbox compl */
572 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
573 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
574 pmb->mbox_cmpl = lpfc_config_async_cmpl;
575 pmb->vport = phba->pport;
576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
577
578 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
579 lpfc_printf_log(phba,
580 KERN_ERR,
581 LOG_INIT,
582 "0456 Adapter failed to issue "
583 "ASYNCEVT_ENABLE mbox status x%x\n",
584 rc);
585 mempool_free(pmb, phba->mbox_mem_pool);
586 }
587
588 /* Get Option rom version */
589 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
590 lpfc_dump_wakeup_param(phba, pmb);
591 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
592 pmb->vport = phba->pport;
593 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
594
595 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
597 "to get Option ROM version status x%x\n", rc);
598 mempool_free(pmb, phba->mbox_mem_pool);
599 }
600
601 return 0;
602 }
603
604 /**
605 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
606 * @phba: pointer to lpfc HBA data structure.
607 *
608 * This routine will do LPFC uninitialization before the HBA is reset when
609 * bringing down the SLI Layer.
610 *
611 * Return codes
612 * 0 - success.
613 * Any other value - error.
614 **/
615 int
616 lpfc_hba_down_prep(struct lpfc_hba *phba)
617 {
618 struct lpfc_vport **vports;
619 int i;
620
621 if (phba->sli_rev <= LPFC_SLI_REV3) {
622 /* Disable interrupts */
623 writel(0, phba->HCregaddr);
624 readl(phba->HCregaddr); /* flush */
625 }
626
627 if (phba->pport->load_flag & FC_UNLOADING)
628 lpfc_cleanup_discovery_resources(phba->pport);
629 else {
630 vports = lpfc_create_vport_work_array(phba);
631 if (vports != NULL)
632 for (i = 0; i <= phba->max_vports &&
633 vports[i] != NULL; i++)
634 lpfc_cleanup_discovery_resources(vports[i]);
635 lpfc_destroy_vport_work_array(phba, vports);
636 }
637 return 0;
638 }
639
640 /**
641 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
642 * @phba: pointer to lpfc HBA data structure.
643 *
644 * This routine will do uninitialization after the HBA is reset when bring
645 * down the SLI Layer.
646 *
647 * Return codes
648 * 0 - sucess.
649 * Any other value - error.
650 **/
651 static int
652 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
653 {
654 struct lpfc_sli *psli = &phba->sli;
655 struct lpfc_sli_ring *pring;
656 struct lpfc_dmabuf *mp, *next_mp;
657 LIST_HEAD(completions);
658 int i;
659
660 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
661 lpfc_sli_hbqbuf_free_all(phba);
662 else {
663 /* Cleanup preposted buffers on the ELS ring */
664 pring = &psli->ring[LPFC_ELS_RING];
665 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
666 list_del(&mp->list);
667 pring->postbufq_cnt--;
668 lpfc_mbuf_free(phba, mp->virt, mp->phys);
669 kfree(mp);
670 }
671 }
672
673 spin_lock_irq(&phba->hbalock);
674 for (i = 0; i < psli->num_rings; i++) {
675 pring = &psli->ring[i];
676
677 /* At this point in time the HBA is either reset or DOA. Either
678 * way, nothing should be on txcmplq as it will NEVER complete.
679 */
680 list_splice_init(&pring->txcmplq, &completions);
681 pring->txcmplq_cnt = 0;
682 spin_unlock_irq(&phba->hbalock);
683
684 /* Cancel all the IOCBs from the completions list */
685 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
686 IOERR_SLI_ABORTED);
687
688 lpfc_sli_abort_iocb_ring(phba, pring);
689 spin_lock_irq(&phba->hbalock);
690 }
691 spin_unlock_irq(&phba->hbalock);
692
693 return 0;
694 }
695 /**
696 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
697 * @phba: pointer to lpfc HBA data structure.
698 *
699 * This routine will do uninitialization after the HBA is reset when bring
700 * down the SLI Layer.
701 *
702 * Return codes
703 * 0 - sucess.
704 * Any other value - error.
705 **/
706 static int
707 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
708 {
709 struct lpfc_scsi_buf *psb, *psb_next;
710 LIST_HEAD(aborts);
711 int ret;
712 unsigned long iflag = 0;
713 ret = lpfc_hba_down_post_s3(phba);
714 if (ret)
715 return ret;
716 /* At this point in time the HBA is either reset or DOA. Either
717 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
718 * on the lpfc_sgl_list so that it can either be freed if the
719 * driver is unloading or reposted if the driver is restarting
720 * the port.
721 */
722 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
723 /* scsl_buf_list */
724 /* abts_sgl_list_lock required because worker thread uses this
725 * list.
726 */
727 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
728 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
729 &phba->sli4_hba.lpfc_sgl_list);
730 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
731 /* abts_scsi_buf_list_lock required because worker thread uses this
732 * list.
733 */
734 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
735 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
736 &aborts);
737 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
738 spin_unlock_irq(&phba->hbalock);
739
740 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
741 psb->pCmd = NULL;
742 psb->status = IOSTAT_SUCCESS;
743 }
744 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
745 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
746 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
747 return 0;
748 }
749
750 /**
751 * lpfc_hba_down_post - Wrapper func for hba down post routine
752 * @phba: pointer to lpfc HBA data structure.
753 *
754 * This routine wraps the actual SLI3 or SLI4 routine for performing
755 * uninitialization after the HBA is reset when bring down the SLI Layer.
756 *
757 * Return codes
758 * 0 - sucess.
759 * Any other value - error.
760 **/
761 int
762 lpfc_hba_down_post(struct lpfc_hba *phba)
763 {
764 return (*phba->lpfc_hba_down_post)(phba);
765 }
766
767 /**
768 * lpfc_hb_timeout - The HBA-timer timeout handler
769 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
770 *
771 * This is the HBA-timer timeout handler registered to the lpfc driver. When
772 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
773 * work-port-events bitmap and the worker thread is notified. This timeout
774 * event will be used by the worker thread to invoke the actual timeout
775 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
776 * be performed in the timeout handler and the HBA timeout event bit shall
777 * be cleared by the worker thread after it has taken the event bitmap out.
778 **/
779 static void
780 lpfc_hb_timeout(unsigned long ptr)
781 {
782 struct lpfc_hba *phba;
783 uint32_t tmo_posted;
784 unsigned long iflag;
785
786 phba = (struct lpfc_hba *)ptr;
787
788 /* Check for heart beat timeout conditions */
789 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
790 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
791 if (!tmo_posted)
792 phba->pport->work_port_events |= WORKER_HB_TMO;
793 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
794
795 /* Tell the worker thread there is work to do */
796 if (!tmo_posted)
797 lpfc_worker_wake_up(phba);
798 return;
799 }
800
801 /**
802 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
803 * @phba: pointer to lpfc hba data structure.
804 * @pmboxq: pointer to the driver internal queue element for mailbox command.
805 *
806 * This is the callback function to the lpfc heart-beat mailbox command.
807 * If configured, the lpfc driver issues the heart-beat mailbox command to
808 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
809 * heart-beat mailbox command is issued, the driver shall set up heart-beat
810 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
811 * heart-beat outstanding state. Once the mailbox command comes back and
812 * no error conditions detected, the heart-beat mailbox command timer is
813 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
814 * state is cleared for the next heart-beat. If the timer expired with the
815 * heart-beat outstanding state set, the driver will put the HBA offline.
816 **/
817 static void
818 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
819 {
820 unsigned long drvr_flag;
821
822 spin_lock_irqsave(&phba->hbalock, drvr_flag);
823 phba->hb_outstanding = 0;
824 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
825
826 /* Check and reset heart-beat timer is necessary */
827 mempool_free(pmboxq, phba->mbox_mem_pool);
828 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
829 !(phba->link_state == LPFC_HBA_ERROR) &&
830 !(phba->pport->load_flag & FC_UNLOADING))
831 mod_timer(&phba->hb_tmofunc,
832 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
833 return;
834 }
835
836 /**
837 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
838 * @phba: pointer to lpfc hba data structure.
839 *
840 * This is the actual HBA-timer timeout handler to be invoked by the worker
841 * thread whenever the HBA timer fired and HBA-timeout event posted. This
842 * handler performs any periodic operations needed for the device. If such
843 * periodic event has already been attended to either in the interrupt handler
844 * or by processing slow-ring or fast-ring events within the HBA-timer
845 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
846 * the timer for the next timeout period. If lpfc heart-beat mailbox command
847 * is configured and there is no heart-beat mailbox command outstanding, a
848 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
849 * has been a heart-beat mailbox command outstanding, the HBA shall be put
850 * to offline.
851 **/
852 void
853 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
854 {
855 LPFC_MBOXQ_t *pmboxq;
856 struct lpfc_dmabuf *buf_ptr;
857 int retval;
858 struct lpfc_sli *psli = &phba->sli;
859 LIST_HEAD(completions);
860
861 if ((phba->link_state == LPFC_HBA_ERROR) ||
862 (phba->pport->load_flag & FC_UNLOADING) ||
863 (phba->pport->fc_flag & FC_OFFLINE_MODE))
864 return;
865
866 spin_lock_irq(&phba->pport->work_port_lock);
867
868 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
869 jiffies)) {
870 spin_unlock_irq(&phba->pport->work_port_lock);
871 if (!phba->hb_outstanding)
872 mod_timer(&phba->hb_tmofunc,
873 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
874 else
875 mod_timer(&phba->hb_tmofunc,
876 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
877 return;
878 }
879 spin_unlock_irq(&phba->pport->work_port_lock);
880
881 if (phba->elsbuf_cnt &&
882 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
883 spin_lock_irq(&phba->hbalock);
884 list_splice_init(&phba->elsbuf, &completions);
885 phba->elsbuf_cnt = 0;
886 phba->elsbuf_prev_cnt = 0;
887 spin_unlock_irq(&phba->hbalock);
888
889 while (!list_empty(&completions)) {
890 list_remove_head(&completions, buf_ptr,
891 struct lpfc_dmabuf, list);
892 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
893 kfree(buf_ptr);
894 }
895 }
896 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
897
898 /* If there is no heart beat outstanding, issue a heartbeat command */
899 if (phba->cfg_enable_hba_heartbeat) {
900 if (!phba->hb_outstanding) {
901 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
902 if (!pmboxq) {
903 mod_timer(&phba->hb_tmofunc,
904 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
905 return;
906 }
907
908 lpfc_heart_beat(phba, pmboxq);
909 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
910 pmboxq->vport = phba->pport;
911 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
912
913 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
914 mempool_free(pmboxq, phba->mbox_mem_pool);
915 mod_timer(&phba->hb_tmofunc,
916 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
917 return;
918 }
919 mod_timer(&phba->hb_tmofunc,
920 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
921 phba->hb_outstanding = 1;
922 return;
923 } else {
924 /*
925 * If heart beat timeout called with hb_outstanding set
926 * we need to take the HBA offline.
927 */
928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
929 "0459 Adapter heartbeat failure, "
930 "taking this port offline.\n");
931
932 spin_lock_irq(&phba->hbalock);
933 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
934 spin_unlock_irq(&phba->hbalock);
935
936 lpfc_offline_prep(phba);
937 lpfc_offline(phba);
938 lpfc_unblock_mgmt_io(phba);
939 phba->link_state = LPFC_HBA_ERROR;
940 lpfc_hba_down_post(phba);
941 }
942 }
943 }
944
945 /**
946 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
947 * @phba: pointer to lpfc hba data structure.
948 *
949 * This routine is called to bring the HBA offline when HBA hardware error
950 * other than Port Error 6 has been detected.
951 **/
952 static void
953 lpfc_offline_eratt(struct lpfc_hba *phba)
954 {
955 struct lpfc_sli *psli = &phba->sli;
956
957 spin_lock_irq(&phba->hbalock);
958 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
959 spin_unlock_irq(&phba->hbalock);
960 lpfc_offline_prep(phba);
961
962 lpfc_offline(phba);
963 lpfc_reset_barrier(phba);
964 spin_lock_irq(&phba->hbalock);
965 lpfc_sli_brdreset(phba);
966 spin_unlock_irq(&phba->hbalock);
967 lpfc_hba_down_post(phba);
968 lpfc_sli_brdready(phba, HS_MBRDY);
969 lpfc_unblock_mgmt_io(phba);
970 phba->link_state = LPFC_HBA_ERROR;
971 return;
972 }
973
974 /**
975 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
976 * @phba: pointer to lpfc hba data structure.
977 *
978 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
979 * other than Port Error 6 has been detected.
980 **/
981 static void
982 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
983 {
984 lpfc_offline_prep(phba);
985 lpfc_offline(phba);
986 lpfc_sli4_brdreset(phba);
987 lpfc_hba_down_post(phba);
988 lpfc_sli4_post_status_check(phba);
989 lpfc_unblock_mgmt_io(phba);
990 phba->link_state = LPFC_HBA_ERROR;
991 }
992
993 /**
994 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
995 * @phba: pointer to lpfc hba data structure.
996 *
997 * This routine is invoked to handle the deferred HBA hardware error
998 * conditions. This type of error is indicated by HBA by setting ER1
999 * and another ER bit in the host status register. The driver will
1000 * wait until the ER1 bit clears before handling the error condition.
1001 **/
1002 static void
1003 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1004 {
1005 uint32_t old_host_status = phba->work_hs;
1006 struct lpfc_sli_ring *pring;
1007 struct lpfc_sli *psli = &phba->sli;
1008
1009 /* If the pci channel is offline, ignore possible errors,
1010 * since we cannot communicate with the pci card anyway.
1011 */
1012 if (pci_channel_offline(phba->pcidev)) {
1013 spin_lock_irq(&phba->hbalock);
1014 phba->hba_flag &= ~DEFER_ERATT;
1015 spin_unlock_irq(&phba->hbalock);
1016 return;
1017 }
1018
1019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1020 "0479 Deferred Adapter Hardware Error "
1021 "Data: x%x x%x x%x\n",
1022 phba->work_hs,
1023 phba->work_status[0], phba->work_status[1]);
1024
1025 spin_lock_irq(&phba->hbalock);
1026 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1027 spin_unlock_irq(&phba->hbalock);
1028
1029
1030 /*
1031 * Firmware stops when it triggred erratt. That could cause the I/Os
1032 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1033 * SCSI layer retry it after re-establishing link.
1034 */
1035 pring = &psli->ring[psli->fcp_ring];
1036 lpfc_sli_abort_iocb_ring(phba, pring);
1037
1038 /*
1039 * There was a firmware error. Take the hba offline and then
1040 * attempt to restart it.
1041 */
1042 lpfc_offline_prep(phba);
1043 lpfc_offline(phba);
1044
1045 /* Wait for the ER1 bit to clear.*/
1046 while (phba->work_hs & HS_FFER1) {
1047 msleep(100);
1048 phba->work_hs = readl(phba->HSregaddr);
1049 /* If driver is unloading let the worker thread continue */
1050 if (phba->pport->load_flag & FC_UNLOADING) {
1051 phba->work_hs = 0;
1052 break;
1053 }
1054 }
1055
1056 /*
1057 * This is to ptrotect against a race condition in which
1058 * first write to the host attention register clear the
1059 * host status register.
1060 */
1061 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1062 phba->work_hs = old_host_status & ~HS_FFER1;
1063
1064 spin_lock_irq(&phba->hbalock);
1065 phba->hba_flag &= ~DEFER_ERATT;
1066 spin_unlock_irq(&phba->hbalock);
1067 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1068 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1069 }
1070
1071 static void
1072 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1073 {
1074 struct lpfc_board_event_header board_event;
1075 struct Scsi_Host *shost;
1076
1077 board_event.event_type = FC_REG_BOARD_EVENT;
1078 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1079 shost = lpfc_shost_from_vport(phba->pport);
1080 fc_host_post_vendor_event(shost, fc_get_event_number(),
1081 sizeof(board_event),
1082 (char *) &board_event,
1083 LPFC_NL_VENDOR_ID);
1084 }
1085
1086 /**
1087 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1088 * @phba: pointer to lpfc hba data structure.
1089 *
1090 * This routine is invoked to handle the following HBA hardware error
1091 * conditions:
1092 * 1 - HBA error attention interrupt
1093 * 2 - DMA ring index out of range
1094 * 3 - Mailbox command came back as unknown
1095 **/
1096 static void
1097 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1098 {
1099 struct lpfc_vport *vport = phba->pport;
1100 struct lpfc_sli *psli = &phba->sli;
1101 struct lpfc_sli_ring *pring;
1102 uint32_t event_data;
1103 unsigned long temperature;
1104 struct temp_event temp_event_data;
1105 struct Scsi_Host *shost;
1106
1107 /* If the pci channel is offline, ignore possible errors,
1108 * since we cannot communicate with the pci card anyway.
1109 */
1110 if (pci_channel_offline(phba->pcidev)) {
1111 spin_lock_irq(&phba->hbalock);
1112 phba->hba_flag &= ~DEFER_ERATT;
1113 spin_unlock_irq(&phba->hbalock);
1114 return;
1115 }
1116
1117 /* If resets are disabled then leave the HBA alone and return */
1118 if (!phba->cfg_enable_hba_reset)
1119 return;
1120
1121 /* Send an internal error event to mgmt application */
1122 lpfc_board_errevt_to_mgmt(phba);
1123
1124 if (phba->hba_flag & DEFER_ERATT)
1125 lpfc_handle_deferred_eratt(phba);
1126
1127 if (phba->work_hs & HS_FFER6) {
1128 /* Re-establishing Link */
1129 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1130 "1301 Re-establishing Link "
1131 "Data: x%x x%x x%x\n",
1132 phba->work_hs,
1133 phba->work_status[0], phba->work_status[1]);
1134
1135 spin_lock_irq(&phba->hbalock);
1136 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1137 spin_unlock_irq(&phba->hbalock);
1138
1139 /*
1140 * Firmware stops when it triggled erratt with HS_FFER6.
1141 * That could cause the I/Os dropped by the firmware.
1142 * Error iocb (I/O) on txcmplq and let the SCSI layer
1143 * retry it after re-establishing link.
1144 */
1145 pring = &psli->ring[psli->fcp_ring];
1146 lpfc_sli_abort_iocb_ring(phba, pring);
1147
1148 /*
1149 * There was a firmware error. Take the hba offline and then
1150 * attempt to restart it.
1151 */
1152 lpfc_offline_prep(phba);
1153 lpfc_offline(phba);
1154 lpfc_sli_brdrestart(phba);
1155 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1156 lpfc_unblock_mgmt_io(phba);
1157 return;
1158 }
1159 lpfc_unblock_mgmt_io(phba);
1160 } else if (phba->work_hs & HS_CRIT_TEMP) {
1161 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1162 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1163 temp_event_data.event_code = LPFC_CRIT_TEMP;
1164 temp_event_data.data = (uint32_t)temperature;
1165
1166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1167 "0406 Adapter maximum temperature exceeded "
1168 "(%ld), taking this port offline "
1169 "Data: x%x x%x x%x\n",
1170 temperature, phba->work_hs,
1171 phba->work_status[0], phba->work_status[1]);
1172
1173 shost = lpfc_shost_from_vport(phba->pport);
1174 fc_host_post_vendor_event(shost, fc_get_event_number(),
1175 sizeof(temp_event_data),
1176 (char *) &temp_event_data,
1177 SCSI_NL_VID_TYPE_PCI
1178 | PCI_VENDOR_ID_EMULEX);
1179
1180 spin_lock_irq(&phba->hbalock);
1181 phba->over_temp_state = HBA_OVER_TEMP;
1182 spin_unlock_irq(&phba->hbalock);
1183 lpfc_offline_eratt(phba);
1184
1185 } else {
1186 /* The if clause above forces this code path when the status
1187 * failure is a value other than FFER6. Do not call the offline
1188 * twice. This is the adapter hardware error path.
1189 */
1190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1191 "0457 Adapter Hardware Error "
1192 "Data: x%x x%x x%x\n",
1193 phba->work_hs,
1194 phba->work_status[0], phba->work_status[1]);
1195
1196 event_data = FC_REG_DUMP_EVENT;
1197 shost = lpfc_shost_from_vport(vport);
1198 fc_host_post_vendor_event(shost, fc_get_event_number(),
1199 sizeof(event_data), (char *) &event_data,
1200 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1201
1202 lpfc_offline_eratt(phba);
1203 }
1204 return;
1205 }
1206
1207 /**
1208 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1209 * @phba: pointer to lpfc hba data structure.
1210 *
1211 * This routine is invoked to handle the SLI4 HBA hardware error attention
1212 * conditions.
1213 **/
1214 static void
1215 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1216 {
1217 struct lpfc_vport *vport = phba->pport;
1218 uint32_t event_data;
1219 struct Scsi_Host *shost;
1220
1221 /* If the pci channel is offline, ignore possible errors, since
1222 * we cannot communicate with the pci card anyway.
1223 */
1224 if (pci_channel_offline(phba->pcidev))
1225 return;
1226 /* If resets are disabled then leave the HBA alone and return */
1227 if (!phba->cfg_enable_hba_reset)
1228 return;
1229
1230 /* Send an internal error event to mgmt application */
1231 lpfc_board_errevt_to_mgmt(phba);
1232
1233 /* For now, the actual action for SLI4 device handling is not
1234 * specified yet, just treated it as adaptor hardware failure
1235 */
1236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1237 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1238 phba->work_status[0], phba->work_status[1]);
1239
1240 event_data = FC_REG_DUMP_EVENT;
1241 shost = lpfc_shost_from_vport(vport);
1242 fc_host_post_vendor_event(shost, fc_get_event_number(),
1243 sizeof(event_data), (char *) &event_data,
1244 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1245
1246 lpfc_sli4_offline_eratt(phba);
1247 }
1248
1249 /**
1250 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1251 * @phba: pointer to lpfc HBA data structure.
1252 *
1253 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1254 * routine from the API jump table function pointer from the lpfc_hba struct.
1255 *
1256 * Return codes
1257 * 0 - sucess.
1258 * Any other value - error.
1259 **/
1260 void
1261 lpfc_handle_eratt(struct lpfc_hba *phba)
1262 {
1263 (*phba->lpfc_handle_eratt)(phba);
1264 }
1265
1266 /**
1267 * lpfc_handle_latt - The HBA link event handler
1268 * @phba: pointer to lpfc hba data structure.
1269 *
1270 * This routine is invoked from the worker thread to handle a HBA host
1271 * attention link event.
1272 **/
1273 void
1274 lpfc_handle_latt(struct lpfc_hba *phba)
1275 {
1276 struct lpfc_vport *vport = phba->pport;
1277 struct lpfc_sli *psli = &phba->sli;
1278 LPFC_MBOXQ_t *pmb;
1279 volatile uint32_t control;
1280 struct lpfc_dmabuf *mp;
1281 int rc = 0;
1282
1283 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1284 if (!pmb) {
1285 rc = 1;
1286 goto lpfc_handle_latt_err_exit;
1287 }
1288
1289 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1290 if (!mp) {
1291 rc = 2;
1292 goto lpfc_handle_latt_free_pmb;
1293 }
1294
1295 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1296 if (!mp->virt) {
1297 rc = 3;
1298 goto lpfc_handle_latt_free_mp;
1299 }
1300
1301 /* Cleanup any outstanding ELS commands */
1302 lpfc_els_flush_all_cmd(phba);
1303
1304 psli->slistat.link_event++;
1305 lpfc_read_la(phba, pmb, mp);
1306 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1307 pmb->vport = vport;
1308 /* Block ELS IOCBs until we have processed this mbox command */
1309 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1310 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1311 if (rc == MBX_NOT_FINISHED) {
1312 rc = 4;
1313 goto lpfc_handle_latt_free_mbuf;
1314 }
1315
1316 /* Clear Link Attention in HA REG */
1317 spin_lock_irq(&phba->hbalock);
1318 writel(HA_LATT, phba->HAregaddr);
1319 readl(phba->HAregaddr); /* flush */
1320 spin_unlock_irq(&phba->hbalock);
1321
1322 return;
1323
1324 lpfc_handle_latt_free_mbuf:
1325 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1326 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1327 lpfc_handle_latt_free_mp:
1328 kfree(mp);
1329 lpfc_handle_latt_free_pmb:
1330 mempool_free(pmb, phba->mbox_mem_pool);
1331 lpfc_handle_latt_err_exit:
1332 /* Enable Link attention interrupts */
1333 spin_lock_irq(&phba->hbalock);
1334 psli->sli_flag |= LPFC_PROCESS_LA;
1335 control = readl(phba->HCregaddr);
1336 control |= HC_LAINT_ENA;
1337 writel(control, phba->HCregaddr);
1338 readl(phba->HCregaddr); /* flush */
1339
1340 /* Clear Link Attention in HA REG */
1341 writel(HA_LATT, phba->HAregaddr);
1342 readl(phba->HAregaddr); /* flush */
1343 spin_unlock_irq(&phba->hbalock);
1344 lpfc_linkdown(phba);
1345 phba->link_state = LPFC_HBA_ERROR;
1346
1347 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1348 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1349
1350 return;
1351 }
1352
1353 /**
1354 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1355 * @phba: pointer to lpfc hba data structure.
1356 * @vpd: pointer to the vital product data.
1357 * @len: length of the vital product data in bytes.
1358 *
1359 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1360 * an array of characters. In this routine, the ModelName, ProgramType, and
1361 * ModelDesc, etc. fields of the phba data structure will be populated.
1362 *
1363 * Return codes
1364 * 0 - pointer to the VPD passed in is NULL
1365 * 1 - success
1366 **/
1367 int
1368 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1369 {
1370 uint8_t lenlo, lenhi;
1371 int Length;
1372 int i, j;
1373 int finished = 0;
1374 int index = 0;
1375
1376 if (!vpd)
1377 return 0;
1378
1379 /* Vital Product */
1380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1381 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1382 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1383 (uint32_t) vpd[3]);
1384 while (!finished && (index < (len - 4))) {
1385 switch (vpd[index]) {
1386 case 0x82:
1387 case 0x91:
1388 index += 1;
1389 lenlo = vpd[index];
1390 index += 1;
1391 lenhi = vpd[index];
1392 index += 1;
1393 i = ((((unsigned short)lenhi) << 8) + lenlo);
1394 index += i;
1395 break;
1396 case 0x90:
1397 index += 1;
1398 lenlo = vpd[index];
1399 index += 1;
1400 lenhi = vpd[index];
1401 index += 1;
1402 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1403 if (Length > len - index)
1404 Length = len - index;
1405 while (Length > 0) {
1406 /* Look for Serial Number */
1407 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1408 index += 2;
1409 i = vpd[index];
1410 index += 1;
1411 j = 0;
1412 Length -= (3+i);
1413 while(i--) {
1414 phba->SerialNumber[j++] = vpd[index++];
1415 if (j == 31)
1416 break;
1417 }
1418 phba->SerialNumber[j] = 0;
1419 continue;
1420 }
1421 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1422 phba->vpd_flag |= VPD_MODEL_DESC;
1423 index += 2;
1424 i = vpd[index];
1425 index += 1;
1426 j = 0;
1427 Length -= (3+i);
1428 while(i--) {
1429 phba->ModelDesc[j++] = vpd[index++];
1430 if (j == 255)
1431 break;
1432 }
1433 phba->ModelDesc[j] = 0;
1434 continue;
1435 }
1436 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1437 phba->vpd_flag |= VPD_MODEL_NAME;
1438 index += 2;
1439 i = vpd[index];
1440 index += 1;
1441 j = 0;
1442 Length -= (3+i);
1443 while(i--) {
1444 phba->ModelName[j++] = vpd[index++];
1445 if (j == 79)
1446 break;
1447 }
1448 phba->ModelName[j] = 0;
1449 continue;
1450 }
1451 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1452 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1453 index += 2;
1454 i = vpd[index];
1455 index += 1;
1456 j = 0;
1457 Length -= (3+i);
1458 while(i--) {
1459 phba->ProgramType[j++] = vpd[index++];
1460 if (j == 255)
1461 break;
1462 }
1463 phba->ProgramType[j] = 0;
1464 continue;
1465 }
1466 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1467 phba->vpd_flag |= VPD_PORT;
1468 index += 2;
1469 i = vpd[index];
1470 index += 1;
1471 j = 0;
1472 Length -= (3+i);
1473 while(i--) {
1474 phba->Port[j++] = vpd[index++];
1475 if (j == 19)
1476 break;
1477 }
1478 phba->Port[j] = 0;
1479 continue;
1480 }
1481 else {
1482 index += 2;
1483 i = vpd[index];
1484 index += 1;
1485 index += i;
1486 Length -= (3 + i);
1487 }
1488 }
1489 finished = 0;
1490 break;
1491 case 0x78:
1492 finished = 1;
1493 break;
1494 default:
1495 index ++;
1496 break;
1497 }
1498 }
1499
1500 return(1);
1501 }
1502
1503 /**
1504 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1505 * @phba: pointer to lpfc hba data structure.
1506 * @mdp: pointer to the data structure to hold the derived model name.
1507 * @descp: pointer to the data structure to hold the derived description.
1508 *
1509 * This routine retrieves HBA's description based on its registered PCI device
1510 * ID. The @descp passed into this function points to an array of 256 chars. It
1511 * shall be returned with the model name, maximum speed, and the host bus type.
1512 * The @mdp passed into this function points to an array of 80 chars. When the
1513 * function returns, the @mdp will be filled with the model name.
1514 **/
1515 static void
1516 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1517 {
1518 lpfc_vpd_t *vp;
1519 uint16_t dev_id = phba->pcidev->device;
1520 int max_speed;
1521 int GE = 0;
1522 int oneConnect = 0; /* default is not a oneConnect */
1523 struct {
1524 char * name;
1525 int max_speed;
1526 char * bus;
1527 } m = {"<Unknown>", 0, ""};
1528
1529 if (mdp && mdp[0] != '\0'
1530 && descp && descp[0] != '\0')
1531 return;
1532
1533 if (phba->lmt & LMT_10Gb)
1534 max_speed = 10;
1535 else if (phba->lmt & LMT_8Gb)
1536 max_speed = 8;
1537 else if (phba->lmt & LMT_4Gb)
1538 max_speed = 4;
1539 else if (phba->lmt & LMT_2Gb)
1540 max_speed = 2;
1541 else
1542 max_speed = 1;
1543
1544 vp = &phba->vpd;
1545
1546 switch (dev_id) {
1547 case PCI_DEVICE_ID_FIREFLY:
1548 m = (typeof(m)){"LP6000", max_speed, "PCI"};
1549 break;
1550 case PCI_DEVICE_ID_SUPERFLY:
1551 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1552 m = (typeof(m)){"LP7000", max_speed, "PCI"};
1553 else
1554 m = (typeof(m)){"LP7000E", max_speed, "PCI"};
1555 break;
1556 case PCI_DEVICE_ID_DRAGONFLY:
1557 m = (typeof(m)){"LP8000", max_speed, "PCI"};
1558 break;
1559 case PCI_DEVICE_ID_CENTAUR:
1560 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1561 m = (typeof(m)){"LP9002", max_speed, "PCI"};
1562 else
1563 m = (typeof(m)){"LP9000", max_speed, "PCI"};
1564 break;
1565 case PCI_DEVICE_ID_RFLY:
1566 m = (typeof(m)){"LP952", max_speed, "PCI"};
1567 break;
1568 case PCI_DEVICE_ID_PEGASUS:
1569 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
1570 break;
1571 case PCI_DEVICE_ID_THOR:
1572 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
1573 break;
1574 case PCI_DEVICE_ID_VIPER:
1575 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
1576 break;
1577 case PCI_DEVICE_ID_PFLY:
1578 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
1579 break;
1580 case PCI_DEVICE_ID_TFLY:
1581 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
1582 break;
1583 case PCI_DEVICE_ID_HELIOS:
1584 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
1585 break;
1586 case PCI_DEVICE_ID_HELIOS_SCSP:
1587 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1588 break;
1589 case PCI_DEVICE_ID_HELIOS_DCSP:
1590 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1591 break;
1592 case PCI_DEVICE_ID_NEPTUNE:
1593 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1594 break;
1595 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1596 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1597 break;
1598 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1599 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1600 break;
1601 case PCI_DEVICE_ID_BMID:
1602 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
1603 break;
1604 case PCI_DEVICE_ID_BSMB:
1605 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
1606 break;
1607 case PCI_DEVICE_ID_ZEPHYR:
1608 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1609 break;
1610 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1611 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1612 break;
1613 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1614 m = (typeof(m)){"LP2105", max_speed, "PCIe"};
1615 GE = 1;
1616 break;
1617 case PCI_DEVICE_ID_ZMID:
1618 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
1619 break;
1620 case PCI_DEVICE_ID_ZSMB:
1621 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
1622 break;
1623 case PCI_DEVICE_ID_LP101:
1624 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
1625 break;
1626 case PCI_DEVICE_ID_LP10000S:
1627 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1628 break;
1629 case PCI_DEVICE_ID_LP11000S:
1630 m = (typeof(m)){"LP11000-S", max_speed,
1631 "PCI-X2"};
1632 break;
1633 case PCI_DEVICE_ID_LPE11000S:
1634 m = (typeof(m)){"LPe11000-S", max_speed,
1635 "PCIe"};
1636 break;
1637 case PCI_DEVICE_ID_SAT:
1638 m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
1639 break;
1640 case PCI_DEVICE_ID_SAT_MID:
1641 m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
1642 break;
1643 case PCI_DEVICE_ID_SAT_SMB:
1644 m = (typeof(m)){"LPe121", max_speed, "PCIe"};
1645 break;
1646 case PCI_DEVICE_ID_SAT_DCSP:
1647 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
1648 break;
1649 case PCI_DEVICE_ID_SAT_SCSP:
1650 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
1651 break;
1652 case PCI_DEVICE_ID_SAT_S:
1653 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
1654 break;
1655 case PCI_DEVICE_ID_HORNET:
1656 m = (typeof(m)){"LP21000", max_speed, "PCIe"};
1657 GE = 1;
1658 break;
1659 case PCI_DEVICE_ID_PROTEUS_VF:
1660 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1661 break;
1662 case PCI_DEVICE_ID_PROTEUS_PF:
1663 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1664 break;
1665 case PCI_DEVICE_ID_PROTEUS_S:
1666 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1667 break;
1668 case PCI_DEVICE_ID_TIGERSHARK:
1669 oneConnect = 1;
1670 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"};
1671 break;
1672 default:
1673 m = (typeof(m)){ NULL };
1674 break;
1675 }
1676
1677 if (mdp && mdp[0] == '\0')
1678 snprintf(mdp, 79,"%s", m.name);
1679 /* oneConnect hba requires special processing, they are all initiators
1680 * and we put the port number on the end
1681 */
1682 if (descp && descp[0] == '\0') {
1683 if (oneConnect)
1684 snprintf(descp, 255,
1685 "Emulex OneConnect %s, FCoE Initiator, Port %s",
1686 m.name,
1687 phba->Port);
1688 else
1689 snprintf(descp, 255,
1690 "Emulex %s %d%s %s %s",
1691 m.name, m.max_speed,
1692 (GE) ? "GE" : "Gb",
1693 m.bus,
1694 (GE) ? "FCoE Adapter" :
1695 "Fibre Channel Adapter");
1696 }
1697 }
1698
1699 /**
1700 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1701 * @phba: pointer to lpfc hba data structure.
1702 * @pring: pointer to a IOCB ring.
1703 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1704 *
1705 * This routine posts a given number of IOCBs with the associated DMA buffer
1706 * descriptors specified by the cnt argument to the given IOCB ring.
1707 *
1708 * Return codes
1709 * The number of IOCBs NOT able to be posted to the IOCB ring.
1710 **/
1711 int
1712 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1713 {
1714 IOCB_t *icmd;
1715 struct lpfc_iocbq *iocb;
1716 struct lpfc_dmabuf *mp1, *mp2;
1717
1718 cnt += pring->missbufcnt;
1719
1720 /* While there are buffers to post */
1721 while (cnt > 0) {
1722 /* Allocate buffer for command iocb */
1723 iocb = lpfc_sli_get_iocbq(phba);
1724 if (iocb == NULL) {
1725 pring->missbufcnt = cnt;
1726 return cnt;
1727 }
1728 icmd = &iocb->iocb;
1729
1730 /* 2 buffers can be posted per command */
1731 /* Allocate buffer to post */
1732 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1733 if (mp1)
1734 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1735 if (!mp1 || !mp1->virt) {
1736 kfree(mp1);
1737 lpfc_sli_release_iocbq(phba, iocb);
1738 pring->missbufcnt = cnt;
1739 return cnt;
1740 }
1741
1742 INIT_LIST_HEAD(&mp1->list);
1743 /* Allocate buffer to post */
1744 if (cnt > 1) {
1745 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1746 if (mp2)
1747 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1748 &mp2->phys);
1749 if (!mp2 || !mp2->virt) {
1750 kfree(mp2);
1751 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1752 kfree(mp1);
1753 lpfc_sli_release_iocbq(phba, iocb);
1754 pring->missbufcnt = cnt;
1755 return cnt;
1756 }
1757
1758 INIT_LIST_HEAD(&mp2->list);
1759 } else {
1760 mp2 = NULL;
1761 }
1762
1763 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1764 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1765 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1766 icmd->ulpBdeCount = 1;
1767 cnt--;
1768 if (mp2) {
1769 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1770 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1771 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1772 cnt--;
1773 icmd->ulpBdeCount = 2;
1774 }
1775
1776 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1777 icmd->ulpLe = 1;
1778
1779 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1780 IOCB_ERROR) {
1781 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1782 kfree(mp1);
1783 cnt++;
1784 if (mp2) {
1785 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1786 kfree(mp2);
1787 cnt++;
1788 }
1789 lpfc_sli_release_iocbq(phba, iocb);
1790 pring->missbufcnt = cnt;
1791 return cnt;
1792 }
1793 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1794 if (mp2)
1795 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1796 }
1797 pring->missbufcnt = 0;
1798 return 0;
1799 }
1800
1801 /**
1802 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1803 * @phba: pointer to lpfc hba data structure.
1804 *
1805 * This routine posts initial receive IOCB buffers to the ELS ring. The
1806 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1807 * set to 64 IOCBs.
1808 *
1809 * Return codes
1810 * 0 - success (currently always success)
1811 **/
1812 static int
1813 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1814 {
1815 struct lpfc_sli *psli = &phba->sli;
1816
1817 /* Ring 0, ELS / CT buffers */
1818 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1819 /* Ring 2 - FCP no buffers needed */
1820
1821 return 0;
1822 }
1823
1824 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1825
1826 /**
1827 * lpfc_sha_init - Set up initial array of hash table entries
1828 * @HashResultPointer: pointer to an array as hash table.
1829 *
1830 * This routine sets up the initial values to the array of hash table entries
1831 * for the LC HBAs.
1832 **/
1833 static void
1834 lpfc_sha_init(uint32_t * HashResultPointer)
1835 {
1836 HashResultPointer[0] = 0x67452301;
1837 HashResultPointer[1] = 0xEFCDAB89;
1838 HashResultPointer[2] = 0x98BADCFE;
1839 HashResultPointer[3] = 0x10325476;
1840 HashResultPointer[4] = 0xC3D2E1F0;
1841 }
1842
1843 /**
1844 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1845 * @HashResultPointer: pointer to an initial/result hash table.
1846 * @HashWorkingPointer: pointer to an working hash table.
1847 *
1848 * This routine iterates an initial hash table pointed by @HashResultPointer
1849 * with the values from the working hash table pointeed by @HashWorkingPointer.
1850 * The results are putting back to the initial hash table, returned through
1851 * the @HashResultPointer as the result hash table.
1852 **/
1853 static void
1854 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1855 {
1856 int t;
1857 uint32_t TEMP;
1858 uint32_t A, B, C, D, E;
1859 t = 16;
1860 do {
1861 HashWorkingPointer[t] =
1862 S(1,
1863 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1864 8] ^
1865 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1866 } while (++t <= 79);
1867 t = 0;
1868 A = HashResultPointer[0];
1869 B = HashResultPointer[1];
1870 C = HashResultPointer[2];
1871 D = HashResultPointer[3];
1872 E = HashResultPointer[4];
1873
1874 do {
1875 if (t < 20) {
1876 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1877 } else if (t < 40) {
1878 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1879 } else if (t < 60) {
1880 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1881 } else {
1882 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1883 }
1884 TEMP += S(5, A) + E + HashWorkingPointer[t];
1885 E = D;
1886 D = C;
1887 C = S(30, B);
1888 B = A;
1889 A = TEMP;
1890 } while (++t <= 79);
1891
1892 HashResultPointer[0] += A;
1893 HashResultPointer[1] += B;
1894 HashResultPointer[2] += C;
1895 HashResultPointer[3] += D;
1896 HashResultPointer[4] += E;
1897
1898 }
1899
1900 /**
1901 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
1902 * @RandomChallenge: pointer to the entry of host challenge random number array.
1903 * @HashWorking: pointer to the entry of the working hash array.
1904 *
1905 * This routine calculates the working hash array referred by @HashWorking
1906 * from the challenge random numbers associated with the host, referred by
1907 * @RandomChallenge. The result is put into the entry of the working hash
1908 * array and returned by reference through @HashWorking.
1909 **/
1910 static void
1911 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1912 {
1913 *HashWorking = (*RandomChallenge ^ *HashWorking);
1914 }
1915
1916 /**
1917 * lpfc_hba_init - Perform special handling for LC HBA initialization
1918 * @phba: pointer to lpfc hba data structure.
1919 * @hbainit: pointer to an array of unsigned 32-bit integers.
1920 *
1921 * This routine performs the special handling for LC HBA initialization.
1922 **/
1923 void
1924 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1925 {
1926 int t;
1927 uint32_t *HashWorking;
1928 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
1929
1930 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
1931 if (!HashWorking)
1932 return;
1933
1934 HashWorking[0] = HashWorking[78] = *pwwnn++;
1935 HashWorking[1] = HashWorking[79] = *pwwnn;
1936
1937 for (t = 0; t < 7; t++)
1938 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1939
1940 lpfc_sha_init(hbainit);
1941 lpfc_sha_iterate(hbainit, HashWorking);
1942 kfree(HashWorking);
1943 }
1944
1945 /**
1946 * lpfc_cleanup - Performs vport cleanups before deleting a vport
1947 * @vport: pointer to a virtual N_Port data structure.
1948 *
1949 * This routine performs the necessary cleanups before deleting the @vport.
1950 * It invokes the discovery state machine to perform necessary state
1951 * transitions and to release the ndlps associated with the @vport. Note,
1952 * the physical port is treated as @vport 0.
1953 **/
1954 void
1955 lpfc_cleanup(struct lpfc_vport *vport)
1956 {
1957 struct lpfc_hba *phba = vport->phba;
1958 struct lpfc_nodelist *ndlp, *next_ndlp;
1959 int i = 0;
1960
1961 if (phba->link_state > LPFC_LINK_DOWN)
1962 lpfc_port_link_failure(vport);
1963
1964 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1965 if (!NLP_CHK_NODE_ACT(ndlp)) {
1966 ndlp = lpfc_enable_node(vport, ndlp,
1967 NLP_STE_UNUSED_NODE);
1968 if (!ndlp)
1969 continue;
1970 spin_lock_irq(&phba->ndlp_lock);
1971 NLP_SET_FREE_REQ(ndlp);
1972 spin_unlock_irq(&phba->ndlp_lock);
1973 /* Trigger the release of the ndlp memory */
1974 lpfc_nlp_put(ndlp);
1975 continue;
1976 }
1977 spin_lock_irq(&phba->ndlp_lock);
1978 if (NLP_CHK_FREE_REQ(ndlp)) {
1979 /* The ndlp should not be in memory free mode already */
1980 spin_unlock_irq(&phba->ndlp_lock);
1981 continue;
1982 } else
1983 /* Indicate request for freeing ndlp memory */
1984 NLP_SET_FREE_REQ(ndlp);
1985 spin_unlock_irq(&phba->ndlp_lock);
1986
1987 if (vport->port_type != LPFC_PHYSICAL_PORT &&
1988 ndlp->nlp_DID == Fabric_DID) {
1989 /* Just free up ndlp with Fabric_DID for vports */
1990 lpfc_nlp_put(ndlp);
1991 continue;
1992 }
1993
1994 if (ndlp->nlp_type & NLP_FABRIC)
1995 lpfc_disc_state_machine(vport, ndlp, NULL,
1996 NLP_EVT_DEVICE_RECOVERY);
1997
1998 lpfc_disc_state_machine(vport, ndlp, NULL,
1999 NLP_EVT_DEVICE_RM);
2000
2001 }
2002
2003 /* At this point, ALL ndlp's should be gone
2004 * because of the previous NLP_EVT_DEVICE_RM.
2005 * Lets wait for this to happen, if needed.
2006 */
2007 while (!list_empty(&vport->fc_nodes)) {
2008 if (i++ > 3000) {
2009 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2010 "0233 Nodelist not empty\n");
2011 list_for_each_entry_safe(ndlp, next_ndlp,
2012 &vport->fc_nodes, nlp_listp) {
2013 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2014 LOG_NODE,
2015 "0282 did:x%x ndlp:x%p "
2016 "usgmap:x%x refcnt:%d\n",
2017 ndlp->nlp_DID, (void *)ndlp,
2018 ndlp->nlp_usg_map,
2019 atomic_read(
2020 &ndlp->kref.refcount));
2021 }
2022 break;
2023 }
2024
2025 /* Wait for any activity on ndlps to settle */
2026 msleep(10);
2027 }
2028 }
2029
2030 /**
2031 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2032 * @vport: pointer to a virtual N_Port data structure.
2033 *
2034 * This routine stops all the timers associated with a @vport. This function
2035 * is invoked before disabling or deleting a @vport. Note that the physical
2036 * port is treated as @vport 0.
2037 **/
2038 void
2039 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2040 {
2041 del_timer_sync(&vport->els_tmofunc);
2042 del_timer_sync(&vport->fc_fdmitmo);
2043 lpfc_can_disctmo(vport);
2044 return;
2045 }
2046
2047 /**
2048 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2049 * @phba: pointer to lpfc hba data structure.
2050 *
2051 * This routine stops all the timers associated with a HBA. This function is
2052 * invoked before either putting a HBA offline or unloading the driver.
2053 **/
2054 void
2055 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2056 {
2057 lpfc_stop_vport_timers(phba->pport);
2058 del_timer_sync(&phba->sli.mbox_tmo);
2059 del_timer_sync(&phba->fabric_block_timer);
2060 del_timer_sync(&phba->eratt_poll);
2061 del_timer_sync(&phba->hb_tmofunc);
2062 phba->hb_outstanding = 0;
2063
2064 switch (phba->pci_dev_grp) {
2065 case LPFC_PCI_DEV_LP:
2066 /* Stop any LightPulse device specific driver timers */
2067 del_timer_sync(&phba->fcp_poll_timer);
2068 break;
2069 case LPFC_PCI_DEV_OC:
2070 /* Stop any OneConnect device sepcific driver timers */
2071 break;
2072 default:
2073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2074 "0297 Invalid device group (x%x)\n",
2075 phba->pci_dev_grp);
2076 break;
2077 }
2078 return;
2079 }
2080
2081 /**
2082 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2083 * @phba: pointer to lpfc hba data structure.
2084 *
2085 * This routine marks a HBA's management interface as blocked. Once the HBA's
2086 * management interface is marked as blocked, all the user space access to
2087 * the HBA, whether they are from sysfs interface or libdfc interface will
2088 * all be blocked. The HBA is set to block the management interface when the
2089 * driver prepares the HBA interface for online or offline.
2090 **/
2091 static void
2092 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2093 {
2094 unsigned long iflag;
2095
2096 spin_lock_irqsave(&phba->hbalock, iflag);
2097 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2098 spin_unlock_irqrestore(&phba->hbalock, iflag);
2099 }
2100
2101 /**
2102 * lpfc_online - Initialize and bring a HBA online
2103 * @phba: pointer to lpfc hba data structure.
2104 *
2105 * This routine initializes the HBA and brings a HBA online. During this
2106 * process, the management interface is blocked to prevent user space access
2107 * to the HBA interfering with the driver initialization.
2108 *
2109 * Return codes
2110 * 0 - successful
2111 * 1 - failed
2112 **/
2113 int
2114 lpfc_online(struct lpfc_hba *phba)
2115 {
2116 struct lpfc_vport *vport;
2117 struct lpfc_vport **vports;
2118 int i;
2119
2120 if (!phba)
2121 return 0;
2122 vport = phba->pport;
2123
2124 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2125 return 0;
2126
2127 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2128 "0458 Bring Adapter online\n");
2129
2130 lpfc_block_mgmt_io(phba);
2131
2132 if (!lpfc_sli_queue_setup(phba)) {
2133 lpfc_unblock_mgmt_io(phba);
2134 return 1;
2135 }
2136
2137 if (phba->sli_rev == LPFC_SLI_REV4) {
2138 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2139 lpfc_unblock_mgmt_io(phba);
2140 return 1;
2141 }
2142 } else {
2143 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2144 lpfc_unblock_mgmt_io(phba);
2145 return 1;
2146 }
2147 }
2148
2149 vports = lpfc_create_vport_work_array(phba);
2150 if (vports != NULL)
2151 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2152 struct Scsi_Host *shost;
2153 shost = lpfc_shost_from_vport(vports[i]);
2154 spin_lock_irq(shost->host_lock);
2155 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2156 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2157 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2158 if (phba->sli_rev == LPFC_SLI_REV4)
2159 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2160 spin_unlock_irq(shost->host_lock);
2161 }
2162 lpfc_destroy_vport_work_array(phba, vports);
2163
2164 lpfc_unblock_mgmt_io(phba);
2165 return 0;
2166 }
2167
2168 /**
2169 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2170 * @phba: pointer to lpfc hba data structure.
2171 *
2172 * This routine marks a HBA's management interface as not blocked. Once the
2173 * HBA's management interface is marked as not blocked, all the user space
2174 * access to the HBA, whether they are from sysfs interface or libdfc
2175 * interface will be allowed. The HBA is set to block the management interface
2176 * when the driver prepares the HBA interface for online or offline and then
2177 * set to unblock the management interface afterwards.
2178 **/
2179 void
2180 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2181 {
2182 unsigned long iflag;
2183
2184 spin_lock_irqsave(&phba->hbalock, iflag);
2185 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2186 spin_unlock_irqrestore(&phba->hbalock, iflag);
2187 }
2188
2189 /**
2190 * lpfc_offline_prep - Prepare a HBA to be brought offline
2191 * @phba: pointer to lpfc hba data structure.
2192 *
2193 * This routine is invoked to prepare a HBA to be brought offline. It performs
2194 * unregistration login to all the nodes on all vports and flushes the mailbox
2195 * queue to make it ready to be brought offline.
2196 **/
2197 void
2198 lpfc_offline_prep(struct lpfc_hba * phba)
2199 {
2200 struct lpfc_vport *vport = phba->pport;
2201 struct lpfc_nodelist *ndlp, *next_ndlp;
2202 struct lpfc_vport **vports;
2203 int i;
2204
2205 if (vport->fc_flag & FC_OFFLINE_MODE)
2206 return;
2207
2208 lpfc_block_mgmt_io(phba);
2209
2210 lpfc_linkdown(phba);
2211
2212 /* Issue an unreg_login to all nodes on all vports */
2213 vports = lpfc_create_vport_work_array(phba);
2214 if (vports != NULL) {
2215 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2216 struct Scsi_Host *shost;
2217
2218 if (vports[i]->load_flag & FC_UNLOADING)
2219 continue;
2220 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED;
2221 shost = lpfc_shost_from_vport(vports[i]);
2222 list_for_each_entry_safe(ndlp, next_ndlp,
2223 &vports[i]->fc_nodes,
2224 nlp_listp) {
2225 if (!NLP_CHK_NODE_ACT(ndlp))
2226 continue;
2227 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2228 continue;
2229 if (ndlp->nlp_type & NLP_FABRIC) {
2230 lpfc_disc_state_machine(vports[i], ndlp,
2231 NULL, NLP_EVT_DEVICE_RECOVERY);
2232 lpfc_disc_state_machine(vports[i], ndlp,
2233 NULL, NLP_EVT_DEVICE_RM);
2234 }
2235 spin_lock_irq(shost->host_lock);
2236 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2237 spin_unlock_irq(shost->host_lock);
2238 lpfc_unreg_rpi(vports[i], ndlp);
2239 }
2240 }
2241 }
2242 lpfc_destroy_vport_work_array(phba, vports);
2243
2244 lpfc_sli_mbox_sys_shutdown(phba);
2245 }
2246
2247 /**
2248 * lpfc_offline - Bring a HBA offline
2249 * @phba: pointer to lpfc hba data structure.
2250 *
2251 * This routine actually brings a HBA offline. It stops all the timers
2252 * associated with the HBA, brings down the SLI layer, and eventually
2253 * marks the HBA as in offline state for the upper layer protocol.
2254 **/
2255 void
2256 lpfc_offline(struct lpfc_hba *phba)
2257 {
2258 struct Scsi_Host *shost;
2259 struct lpfc_vport **vports;
2260 int i;
2261
2262 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2263 return;
2264
2265 /* stop port and all timers associated with this hba */
2266 lpfc_stop_port(phba);
2267 vports = lpfc_create_vport_work_array(phba);
2268 if (vports != NULL)
2269 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2270 lpfc_stop_vport_timers(vports[i]);
2271 lpfc_destroy_vport_work_array(phba, vports);
2272 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2273 "0460 Bring Adapter offline\n");
2274 /* Bring down the SLI Layer and cleanup. The HBA is offline
2275 now. */
2276 lpfc_sli_hba_down(phba);
2277 spin_lock_irq(&phba->hbalock);
2278 phba->work_ha = 0;
2279 spin_unlock_irq(&phba->hbalock);
2280 vports = lpfc_create_vport_work_array(phba);
2281 if (vports != NULL)
2282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2283 shost = lpfc_shost_from_vport(vports[i]);
2284 spin_lock_irq(shost->host_lock);
2285 vports[i]->work_port_events = 0;
2286 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2287 spin_unlock_irq(shost->host_lock);
2288 }
2289 lpfc_destroy_vport_work_array(phba, vports);
2290 }
2291
2292 /**
2293 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2294 * @phba: pointer to lpfc hba data structure.
2295 *
2296 * This routine is to free all the SCSI buffers and IOCBs from the driver
2297 * list back to kernel. It is called from lpfc_pci_remove_one to free
2298 * the internal resources before the device is removed from the system.
2299 *
2300 * Return codes
2301 * 0 - successful (for now, it always returns 0)
2302 **/
2303 static int
2304 lpfc_scsi_free(struct lpfc_hba *phba)
2305 {
2306 struct lpfc_scsi_buf *sb, *sb_next;
2307 struct lpfc_iocbq *io, *io_next;
2308
2309 spin_lock_irq(&phba->hbalock);
2310 /* Release all the lpfc_scsi_bufs maintained by this host. */
2311 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2312 list_del(&sb->list);
2313 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2314 sb->dma_handle);
2315 kfree(sb);
2316 phba->total_scsi_bufs--;
2317 }
2318
2319 /* Release all the lpfc_iocbq entries maintained by this host. */
2320 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2321 list_del(&io->list);
2322 kfree(io);
2323 phba->total_iocbq_bufs--;
2324 }
2325
2326 spin_unlock_irq(&phba->hbalock);
2327
2328 return 0;
2329 }
2330
2331 /**
2332 * lpfc_create_port - Create an FC port
2333 * @phba: pointer to lpfc hba data structure.
2334 * @instance: a unique integer ID to this FC port.
2335 * @dev: pointer to the device data structure.
2336 *
2337 * This routine creates a FC port for the upper layer protocol. The FC port
2338 * can be created on top of either a physical port or a virtual port provided
2339 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2340 * and associates the FC port created before adding the shost into the SCSI
2341 * layer.
2342 *
2343 * Return codes
2344 * @vport - pointer to the virtual N_Port data structure.
2345 * NULL - port create failed.
2346 **/
2347 struct lpfc_vport *
2348 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2349 {
2350 struct lpfc_vport *vport;
2351 struct Scsi_Host *shost;
2352 int error = 0;
2353
2354 if (dev != &phba->pcidev->dev)
2355 shost = scsi_host_alloc(&lpfc_vport_template,
2356 sizeof(struct lpfc_vport));
2357 else
2358 shost = scsi_host_alloc(&lpfc_template,
2359 sizeof(struct lpfc_vport));
2360 if (!shost)
2361 goto out;
2362
2363 vport = (struct lpfc_vport *) shost->hostdata;
2364 vport->phba = phba;
2365 vport->load_flag |= FC_LOADING;
2366 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2367 vport->fc_rscn_flush = 0;
2368
2369 lpfc_get_vport_cfgparam(vport);
2370 shost->unique_id = instance;
2371 shost->max_id = LPFC_MAX_TARGET;
2372 shost->max_lun = vport->cfg_max_luns;
2373 shost->this_id = -1;
2374 shost->max_cmd_len = 16;
2375 if (phba->sli_rev == LPFC_SLI_REV4) {
2376 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE;
2377 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2378 }
2379
2380 /*
2381 * Set initial can_queue value since 0 is no longer supported and
2382 * scsi_add_host will fail. This will be adjusted later based on the
2383 * max xri value determined in hba setup.
2384 */
2385 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2386 if (dev != &phba->pcidev->dev) {
2387 shost->transportt = lpfc_vport_transport_template;
2388 vport->port_type = LPFC_NPIV_PORT;
2389 } else {
2390 shost->transportt = lpfc_transport_template;
2391 vport->port_type = LPFC_PHYSICAL_PORT;
2392 }
2393
2394 /* Initialize all internally managed lists. */
2395 INIT_LIST_HEAD(&vport->fc_nodes);
2396 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2397 spin_lock_init(&vport->work_port_lock);
2398
2399 init_timer(&vport->fc_disctmo);
2400 vport->fc_disctmo.function = lpfc_disc_timeout;
2401 vport->fc_disctmo.data = (unsigned long)vport;
2402
2403 init_timer(&vport->fc_fdmitmo);
2404 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2405 vport->fc_fdmitmo.data = (unsigned long)vport;
2406
2407 init_timer(&vport->els_tmofunc);
2408 vport->els_tmofunc.function = lpfc_els_timeout;
2409 vport->els_tmofunc.data = (unsigned long)vport;
2410
2411 error = scsi_add_host(shost, dev);
2412 if (error)
2413 goto out_put_shost;
2414
2415 spin_lock_irq(&phba->hbalock);
2416 list_add_tail(&vport->listentry, &phba->port_list);
2417 spin_unlock_irq(&phba->hbalock);
2418 return vport;
2419
2420 out_put_shost:
2421 scsi_host_put(shost);
2422 out:
2423 return NULL;
2424 }
2425
2426 /**
2427 * destroy_port - destroy an FC port
2428 * @vport: pointer to an lpfc virtual N_Port data structure.
2429 *
2430 * This routine destroys a FC port from the upper layer protocol. All the
2431 * resources associated with the port are released.
2432 **/
2433 void
2434 destroy_port(struct lpfc_vport *vport)
2435 {
2436 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2437 struct lpfc_hba *phba = vport->phba;
2438
2439 lpfc_debugfs_terminate(vport);
2440 fc_remove_host(shost);
2441 scsi_remove_host(shost);
2442
2443 spin_lock_irq(&phba->hbalock);
2444 list_del_init(&vport->listentry);
2445 spin_unlock_irq(&phba->hbalock);
2446
2447 lpfc_cleanup(vport);
2448 return;
2449 }
2450
2451 /**
2452 * lpfc_get_instance - Get a unique integer ID
2453 *
2454 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2455 * uses the kernel idr facility to perform the task.
2456 *
2457 * Return codes:
2458 * instance - a unique integer ID allocated as the new instance.
2459 * -1 - lpfc get instance failed.
2460 **/
2461 int
2462 lpfc_get_instance(void)
2463 {
2464 int instance = 0;
2465
2466 /* Assign an unused number */
2467 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2468 return -1;
2469 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2470 return -1;
2471 return instance;
2472 }
2473
2474 /**
2475 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2476 * @shost: pointer to SCSI host data structure.
2477 * @time: elapsed time of the scan in jiffies.
2478 *
2479 * This routine is called by the SCSI layer with a SCSI host to determine
2480 * whether the scan host is finished.
2481 *
2482 * Note: there is no scan_start function as adapter initialization will have
2483 * asynchronously kicked off the link initialization.
2484 *
2485 * Return codes
2486 * 0 - SCSI host scan is not over yet.
2487 * 1 - SCSI host scan is over.
2488 **/
2489 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2490 {
2491 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2492 struct lpfc_hba *phba = vport->phba;
2493 int stat = 0;
2494
2495 spin_lock_irq(shost->host_lock);
2496
2497 if (vport->load_flag & FC_UNLOADING) {
2498 stat = 1;
2499 goto finished;
2500 }
2501 if (time >= 30 * HZ) {
2502 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2503 "0461 Scanning longer than 30 "
2504 "seconds. Continuing initialization\n");
2505 stat = 1;
2506 goto finished;
2507 }
2508 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2510 "0465 Link down longer than 15 "
2511 "seconds. Continuing initialization\n");
2512 stat = 1;
2513 goto finished;
2514 }
2515
2516 if (vport->port_state != LPFC_VPORT_READY)
2517 goto finished;
2518 if (vport->num_disc_nodes || vport->fc_prli_sent)
2519 goto finished;
2520 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2521 goto finished;
2522 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2523 goto finished;
2524
2525 stat = 1;
2526
2527 finished:
2528 spin_unlock_irq(shost->host_lock);
2529 return stat;
2530 }
2531
2532 /**
2533 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2534 * @shost: pointer to SCSI host data structure.
2535 *
2536 * This routine initializes a given SCSI host attributes on a FC port. The
2537 * SCSI host can be either on top of a physical port or a virtual port.
2538 **/
2539 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2540 {
2541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2542 struct lpfc_hba *phba = vport->phba;
2543 /*
2544 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2545 */
2546
2547 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2548 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2549 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2550
2551 memset(fc_host_supported_fc4s(shost), 0,
2552 sizeof(fc_host_supported_fc4s(shost)));
2553 fc_host_supported_fc4s(shost)[2] = 1;
2554 fc_host_supported_fc4s(shost)[7] = 1;
2555
2556 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2557 sizeof fc_host_symbolic_name(shost));
2558
2559 fc_host_supported_speeds(shost) = 0;
2560 if (phba->lmt & LMT_10Gb)
2561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2562 if (phba->lmt & LMT_8Gb)
2563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2564 if (phba->lmt & LMT_4Gb)
2565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2566 if (phba->lmt & LMT_2Gb)
2567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2568 if (phba->lmt & LMT_1Gb)
2569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2570
2571 fc_host_maxframe_size(shost) =
2572 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2573 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2574
2575 /* This value is also unchanging */
2576 memset(fc_host_active_fc4s(shost), 0,
2577 sizeof(fc_host_active_fc4s(shost)));
2578 fc_host_active_fc4s(shost)[2] = 1;
2579 fc_host_active_fc4s(shost)[7] = 1;
2580
2581 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2582 spin_lock_irq(shost->host_lock);
2583 vport->load_flag &= ~FC_LOADING;
2584 spin_unlock_irq(shost->host_lock);
2585 }
2586
2587 /**
2588 * lpfc_stop_port_s3 - Stop SLI3 device port
2589 * @phba: pointer to lpfc hba data structure.
2590 *
2591 * This routine is invoked to stop an SLI3 device port, it stops the device
2592 * from generating interrupts and stops the device driver's timers for the
2593 * device.
2594 **/
2595 static void
2596 lpfc_stop_port_s3(struct lpfc_hba *phba)
2597 {
2598 /* Clear all interrupt enable conditions */
2599 writel(0, phba->HCregaddr);
2600 readl(phba->HCregaddr); /* flush */
2601 /* Clear all pending interrupts */
2602 writel(0xffffffff, phba->HAregaddr);
2603 readl(phba->HAregaddr); /* flush */
2604
2605 /* Reset some HBA SLI setup states */
2606 lpfc_stop_hba_timers(phba);
2607 phba->pport->work_port_events = 0;
2608 }
2609
2610 /**
2611 * lpfc_stop_port_s4 - Stop SLI4 device port
2612 * @phba: pointer to lpfc hba data structure.
2613 *
2614 * This routine is invoked to stop an SLI4 device port, it stops the device
2615 * from generating interrupts and stops the device driver's timers for the
2616 * device.
2617 **/
2618 static void
2619 lpfc_stop_port_s4(struct lpfc_hba *phba)
2620 {
2621 /* Reset some HBA SLI4 setup states */
2622 lpfc_stop_hba_timers(phba);
2623 phba->pport->work_port_events = 0;
2624 phba->sli4_hba.intr_enable = 0;
2625 /* Hard clear it for now, shall have more graceful way to wait later */
2626 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2627 }
2628
2629 /**
2630 * lpfc_stop_port - Wrapper function for stopping hba port
2631 * @phba: Pointer to HBA context object.
2632 *
2633 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2634 * the API jump table function pointer from the lpfc_hba struct.
2635 **/
2636 void
2637 lpfc_stop_port(struct lpfc_hba *phba)
2638 {
2639 phba->lpfc_stop_port(phba);
2640 }
2641
2642 /**
2643 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2644 * @phba: pointer to lpfc hba data structure.
2645 *
2646 * This routine is invoked to remove the driver default fcf record from
2647 * the port. This routine currently acts on FCF Index 0.
2648 *
2649 **/
2650 void
2651 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2652 {
2653 int rc = 0;
2654 LPFC_MBOXQ_t *mboxq;
2655 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2656 uint32_t mbox_tmo, req_len;
2657 uint32_t shdr_status, shdr_add_status;
2658
2659 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2660 if (!mboxq) {
2661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2662 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2663 return;
2664 }
2665
2666 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2667 sizeof(struct lpfc_sli4_cfg_mhdr);
2668 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2669 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2670 req_len, LPFC_SLI4_MBX_EMBED);
2671 /*
2672 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2673 * supports multiple FCF indices.
2674 */
2675 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2676 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2677 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2678 phba->fcf.fcf_indx);
2679
2680 if (!phba->sli4_hba.intr_enable)
2681 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2682 else {
2683 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2684 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2685 }
2686 /* The IOCTL status is embedded in the mailbox subheader. */
2687 shdr_status = bf_get(lpfc_mbox_hdr_status,
2688 &del_fcf_record->header.cfg_shdr.response);
2689 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2690 &del_fcf_record->header.cfg_shdr.response);
2691 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2693 "2516 DEL FCF of default FCF Index failed "
2694 "mbx status x%x, status x%x add_status x%x\n",
2695 rc, shdr_status, shdr_add_status);
2696 }
2697 if (rc != MBX_TIMEOUT)
2698 mempool_free(mboxq, phba->mbox_mem_pool);
2699 }
2700
2701 /**
2702 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2703 * @phba: pointer to lpfc hba data structure.
2704 * @acqe_link: pointer to the async link completion queue entry.
2705 *
2706 * This routine is to parse the SLI4 link-attention link fault code and
2707 * translate it into the base driver's read link attention mailbox command
2708 * status.
2709 *
2710 * Return: Link-attention status in terms of base driver's coding.
2711 **/
2712 static uint16_t
2713 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
2714 struct lpfc_acqe_link *acqe_link)
2715 {
2716 uint16_t latt_fault;
2717
2718 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
2719 case LPFC_ASYNC_LINK_FAULT_NONE:
2720 case LPFC_ASYNC_LINK_FAULT_LOCAL:
2721 case LPFC_ASYNC_LINK_FAULT_REMOTE:
2722 latt_fault = 0;
2723 break;
2724 default:
2725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2726 "0398 Invalid link fault code: x%x\n",
2727 bf_get(lpfc_acqe_link_fault, acqe_link));
2728 latt_fault = MBXERR_ERROR;
2729 break;
2730 }
2731 return latt_fault;
2732 }
2733
2734 /**
2735 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
2736 * @phba: pointer to lpfc hba data structure.
2737 * @acqe_link: pointer to the async link completion queue entry.
2738 *
2739 * This routine is to parse the SLI4 link attention type and translate it
2740 * into the base driver's link attention type coding.
2741 *
2742 * Return: Link attention type in terms of base driver's coding.
2743 **/
2744 static uint8_t
2745 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
2746 struct lpfc_acqe_link *acqe_link)
2747 {
2748 uint8_t att_type;
2749
2750 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
2751 case LPFC_ASYNC_LINK_STATUS_DOWN:
2752 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
2753 att_type = AT_LINK_DOWN;
2754 break;
2755 case LPFC_ASYNC_LINK_STATUS_UP:
2756 /* Ignore physical link up events - wait for logical link up */
2757 att_type = AT_RESERVED;
2758 break;
2759 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
2760 att_type = AT_LINK_UP;
2761 break;
2762 default:
2763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2764 "0399 Invalid link attention type: x%x\n",
2765 bf_get(lpfc_acqe_link_status, acqe_link));
2766 att_type = AT_RESERVED;
2767 break;
2768 }
2769 return att_type;
2770 }
2771
2772 /**
2773 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
2774 * @phba: pointer to lpfc hba data structure.
2775 * @acqe_link: pointer to the async link completion queue entry.
2776 *
2777 * This routine is to parse the SLI4 link-attention link speed and translate
2778 * it into the base driver's link-attention link speed coding.
2779 *
2780 * Return: Link-attention link speed in terms of base driver's coding.
2781 **/
2782 static uint8_t
2783 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
2784 struct lpfc_acqe_link *acqe_link)
2785 {
2786 uint8_t link_speed;
2787
2788 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
2789 case LPFC_ASYNC_LINK_SPEED_ZERO:
2790 link_speed = LA_UNKNW_LINK;
2791 break;
2792 case LPFC_ASYNC_LINK_SPEED_10MBPS:
2793 link_speed = LA_UNKNW_LINK;
2794 break;
2795 case LPFC_ASYNC_LINK_SPEED_100MBPS:
2796 link_speed = LA_UNKNW_LINK;
2797 break;
2798 case LPFC_ASYNC_LINK_SPEED_1GBPS:
2799 link_speed = LA_1GHZ_LINK;
2800 break;
2801 case LPFC_ASYNC_LINK_SPEED_10GBPS:
2802 link_speed = LA_10GHZ_LINK;
2803 break;
2804 default:
2805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2806 "0483 Invalid link-attention link speed: x%x\n",
2807 bf_get(lpfc_acqe_link_speed, acqe_link));
2808 link_speed = LA_UNKNW_LINK;
2809 break;
2810 }
2811 return link_speed;
2812 }
2813
2814 /**
2815 * lpfc_sli4_async_link_evt - Process the asynchronous link event
2816 * @phba: pointer to lpfc hba data structure.
2817 * @acqe_link: pointer to the async link completion queue entry.
2818 *
2819 * This routine is to handle the SLI4 asynchronous link event.
2820 **/
2821 static void
2822 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
2823 struct lpfc_acqe_link *acqe_link)
2824 {
2825 struct lpfc_dmabuf *mp;
2826 LPFC_MBOXQ_t *pmb;
2827 MAILBOX_t *mb;
2828 READ_LA_VAR *la;
2829 uint8_t att_type;
2830
2831 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
2832 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
2833 return;
2834 phba->fcoe_eventtag = acqe_link->event_tag;
2835 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2836 if (!pmb) {
2837 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2838 "0395 The mboxq allocation failed\n");
2839 return;
2840 }
2841 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2842 if (!mp) {
2843 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2844 "0396 The lpfc_dmabuf allocation failed\n");
2845 goto out_free_pmb;
2846 }
2847 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2848 if (!mp->virt) {
2849 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2850 "0397 The mbuf allocation failed\n");
2851 goto out_free_dmabuf;
2852 }
2853
2854 /* Cleanup any outstanding ELS commands */
2855 lpfc_els_flush_all_cmd(phba);
2856
2857 /* Block ELS IOCBs until we have done process link event */
2858 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2859
2860 /* Update link event statistics */
2861 phba->sli.slistat.link_event++;
2862
2863 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
2864 lpfc_read_la(phba, pmb, mp);
2865 pmb->vport = phba->pport;
2866
2867 /* Parse and translate status field */
2868 mb = &pmb->u.mb;
2869 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
2870
2871 /* Parse and translate link attention fields */
2872 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2873 la->eventTag = acqe_link->event_tag;
2874 la->attType = att_type;
2875 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
2876
2877 /* Fake the the following irrelvant fields */
2878 la->topology = TOPOLOGY_PT_PT;
2879 la->granted_AL_PA = 0;
2880 la->il = 0;
2881 la->pb = 0;
2882 la->fa = 0;
2883 la->mm = 0;
2884
2885 /* Keep the link status for extra SLI4 state machine reference */
2886 phba->sli4_hba.link_state.speed =
2887 bf_get(lpfc_acqe_link_speed, acqe_link);
2888 phba->sli4_hba.link_state.duplex =
2889 bf_get(lpfc_acqe_link_duplex, acqe_link);
2890 phba->sli4_hba.link_state.status =
2891 bf_get(lpfc_acqe_link_status, acqe_link);
2892 phba->sli4_hba.link_state.physical =
2893 bf_get(lpfc_acqe_link_physical, acqe_link);
2894 phba->sli4_hba.link_state.fault =
2895 bf_get(lpfc_acqe_link_fault, acqe_link);
2896
2897 /* Invoke the lpfc_handle_latt mailbox command callback function */
2898 lpfc_mbx_cmpl_read_la(phba, pmb);
2899
2900 return;
2901
2902 out_free_dmabuf:
2903 kfree(mp);
2904 out_free_pmb:
2905 mempool_free(pmb, phba->mbox_mem_pool);
2906 }
2907
2908 /**
2909 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
2910 * @phba: pointer to lpfc hba data structure.
2911 * @acqe_link: pointer to the async fcoe completion queue entry.
2912 *
2913 * This routine is to handle the SLI4 asynchronous fcoe event.
2914 **/
2915 static void
2916 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
2917 struct lpfc_acqe_fcoe *acqe_fcoe)
2918 {
2919 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
2920 int rc;
2921
2922 phba->fcoe_eventtag = acqe_fcoe->event_tag;
2923 switch (event_type) {
2924 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
2925 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2926 "2546 New FCF found index 0x%x tag 0x%x\n",
2927 acqe_fcoe->fcf_index,
2928 acqe_fcoe->event_tag);
2929 /*
2930 * If the current FCF is in discovered state, or
2931 * FCF discovery is in progress do nothing.
2932 */
2933 spin_lock_irq(&phba->hbalock);
2934 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) ||
2935 (phba->hba_flag & FCF_DISC_INPROGRESS)) {
2936 spin_unlock_irq(&phba->hbalock);
2937 break;
2938 }
2939 spin_unlock_irq(&phba->hbalock);
2940
2941 /* Read the FCF table and re-discover SAN. */
2942 rc = lpfc_sli4_read_fcf_record(phba,
2943 LPFC_FCOE_FCF_GET_FIRST);
2944 if (rc)
2945 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2946 "2547 Read FCF record failed 0x%x\n",
2947 rc);
2948 break;
2949
2950 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
2951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2952 "2548 FCF Table full count 0x%x tag 0x%x\n",
2953 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
2954 acqe_fcoe->event_tag);
2955 break;
2956
2957 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
2958 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2959 "2549 FCF disconnected fron network index 0x%x"
2960 " tag 0x%x\n", acqe_fcoe->fcf_index,
2961 acqe_fcoe->event_tag);
2962 /* If the event is not for currently used fcf do nothing */
2963 if (phba->fcf.fcf_indx != acqe_fcoe->fcf_index)
2964 break;
2965 /*
2966 * Currently, driver support only one FCF - so treat this as
2967 * a link down.
2968 */
2969 lpfc_linkdown(phba);
2970 /* Unregister FCF if no devices connected to it */
2971 lpfc_unregister_unused_fcf(phba);
2972 break;
2973
2974 default:
2975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2976 "0288 Unknown FCoE event type 0x%x event tag "
2977 "0x%x\n", event_type, acqe_fcoe->event_tag);
2978 break;
2979 }
2980 }
2981
2982 /**
2983 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
2984 * @phba: pointer to lpfc hba data structure.
2985 * @acqe_link: pointer to the async dcbx completion queue entry.
2986 *
2987 * This routine is to handle the SLI4 asynchronous dcbx event.
2988 **/
2989 static void
2990 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
2991 struct lpfc_acqe_dcbx *acqe_dcbx)
2992 {
2993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2994 "0290 The SLI4 DCBX asynchronous event is not "
2995 "handled yet\n");
2996 }
2997
2998 /**
2999 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3000 * @phba: pointer to lpfc hba data structure.
3001 *
3002 * This routine is invoked by the worker thread to process all the pending
3003 * SLI4 asynchronous events.
3004 **/
3005 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3006 {
3007 struct lpfc_cq_event *cq_event;
3008
3009 /* First, declare the async event has been handled */
3010 spin_lock_irq(&phba->hbalock);
3011 phba->hba_flag &= ~ASYNC_EVENT;
3012 spin_unlock_irq(&phba->hbalock);
3013 /* Now, handle all the async events */
3014 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3015 /* Get the first event from the head of the event queue */
3016 spin_lock_irq(&phba->hbalock);
3017 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3018 cq_event, struct lpfc_cq_event, list);
3019 spin_unlock_irq(&phba->hbalock);
3020 /* Process the asynchronous event */
3021 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3022 case LPFC_TRAILER_CODE_LINK:
3023 lpfc_sli4_async_link_evt(phba,
3024 &cq_event->cqe.acqe_link);
3025 break;
3026 case LPFC_TRAILER_CODE_FCOE:
3027 lpfc_sli4_async_fcoe_evt(phba,
3028 &cq_event->cqe.acqe_fcoe);
3029 break;
3030 case LPFC_TRAILER_CODE_DCBX:
3031 lpfc_sli4_async_dcbx_evt(phba,
3032 &cq_event->cqe.acqe_dcbx);
3033 break;
3034 default:
3035 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3036 "1804 Invalid asynchrous event code: "
3037 "x%x\n", bf_get(lpfc_trailer_code,
3038 &cq_event->cqe.mcqe_cmpl));
3039 break;
3040 }
3041 /* Free the completion event processed to the free pool */
3042 lpfc_sli4_cq_event_release(phba, cq_event);
3043 }
3044 }
3045
3046 /**
3047 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3048 * @phba: pointer to lpfc hba data structure.
3049 * @dev_grp: The HBA PCI-Device group number.
3050 *
3051 * This routine is invoked to set up the per HBA PCI-Device group function
3052 * API jump table entries.
3053 *
3054 * Return: 0 if success, otherwise -ENODEV
3055 **/
3056 int
3057 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3058 {
3059 int rc;
3060
3061 /* Set up lpfc PCI-device group */
3062 phba->pci_dev_grp = dev_grp;
3063
3064 /* The LPFC_PCI_DEV_OC uses SLI4 */
3065 if (dev_grp == LPFC_PCI_DEV_OC)
3066 phba->sli_rev = LPFC_SLI_REV4;
3067
3068 /* Set up device INIT API function jump table */
3069 rc = lpfc_init_api_table_setup(phba, dev_grp);
3070 if (rc)
3071 return -ENODEV;
3072 /* Set up SCSI API function jump table */
3073 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3074 if (rc)
3075 return -ENODEV;
3076 /* Set up SLI API function jump table */
3077 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3078 if (rc)
3079 return -ENODEV;
3080 /* Set up MBOX API function jump table */
3081 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3082 if (rc)
3083 return -ENODEV;
3084
3085 return 0;
3086 }
3087
3088 /**
3089 * lpfc_log_intr_mode - Log the active interrupt mode
3090 * @phba: pointer to lpfc hba data structure.
3091 * @intr_mode: active interrupt mode adopted.
3092 *
3093 * This routine it invoked to log the currently used active interrupt mode
3094 * to the device.
3095 **/
3096 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3097 {
3098 switch (intr_mode) {
3099 case 0:
3100 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3101 "0470 Enable INTx interrupt mode.\n");
3102 break;
3103 case 1:
3104 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3105 "0481 Enabled MSI interrupt mode.\n");
3106 break;
3107 case 2:
3108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3109 "0480 Enabled MSI-X interrupt mode.\n");
3110 break;
3111 default:
3112 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3113 "0482 Illegal interrupt mode.\n");
3114 break;
3115 }
3116 return;
3117 }
3118
3119 /**
3120 * lpfc_enable_pci_dev - Enable a generic PCI device.
3121 * @phba: pointer to lpfc hba data structure.
3122 *
3123 * This routine is invoked to enable the PCI device that is common to all
3124 * PCI devices.
3125 *
3126 * Return codes
3127 * 0 - sucessful
3128 * other values - error
3129 **/
3130 static int
3131 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3132 {
3133 struct pci_dev *pdev;
3134 int bars;
3135
3136 /* Obtain PCI device reference */
3137 if (!phba->pcidev)
3138 goto out_error;
3139 else
3140 pdev = phba->pcidev;
3141 /* Select PCI BARs */
3142 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3143 /* Enable PCI device */
3144 if (pci_enable_device_mem(pdev))
3145 goto out_error;
3146 /* Request PCI resource for the device */
3147 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3148 goto out_disable_device;
3149 /* Set up device as PCI master and save state for EEH */
3150 pci_set_master(pdev);
3151 pci_try_set_mwi(pdev);
3152 pci_save_state(pdev);
3153
3154 return 0;
3155
3156 out_disable_device:
3157 pci_disable_device(pdev);
3158 out_error:
3159 return -ENODEV;
3160 }
3161
3162 /**
3163 * lpfc_disable_pci_dev - Disable a generic PCI device.
3164 * @phba: pointer to lpfc hba data structure.
3165 *
3166 * This routine is invoked to disable the PCI device that is common to all
3167 * PCI devices.
3168 **/
3169 static void
3170 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3171 {
3172 struct pci_dev *pdev;
3173 int bars;
3174
3175 /* Obtain PCI device reference */
3176 if (!phba->pcidev)
3177 return;
3178 else
3179 pdev = phba->pcidev;
3180 /* Select PCI BARs */
3181 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3182 /* Release PCI resource and disable PCI device */
3183 pci_release_selected_regions(pdev, bars);
3184 pci_disable_device(pdev);
3185 /* Null out PCI private reference to driver */
3186 pci_set_drvdata(pdev, NULL);
3187
3188 return;
3189 }
3190
3191 /**
3192 * lpfc_reset_hba - Reset a hba
3193 * @phba: pointer to lpfc hba data structure.
3194 *
3195 * This routine is invoked to reset a hba device. It brings the HBA
3196 * offline, performs a board restart, and then brings the board back
3197 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3198 * on outstanding mailbox commands.
3199 **/
3200 void
3201 lpfc_reset_hba(struct lpfc_hba *phba)
3202 {
3203 /* If resets are disabled then set error state and return. */
3204 if (!phba->cfg_enable_hba_reset) {
3205 phba->link_state = LPFC_HBA_ERROR;
3206 return;
3207 }
3208 lpfc_offline_prep(phba);
3209 lpfc_offline(phba);
3210 lpfc_sli_brdrestart(phba);
3211 lpfc_online(phba);
3212 lpfc_unblock_mgmt_io(phba);
3213 }
3214
3215 /**
3216 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3217 * @phba: pointer to lpfc hba data structure.
3218 *
3219 * This routine is invoked to set up the driver internal resources specific to
3220 * support the SLI-3 HBA device it attached to.
3221 *
3222 * Return codes
3223 * 0 - sucessful
3224 * other values - error
3225 **/
3226 static int
3227 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3228 {
3229 struct lpfc_sli *psli;
3230
3231 /*
3232 * Initialize timers used by driver
3233 */
3234
3235 /* Heartbeat timer */
3236 init_timer(&phba->hb_tmofunc);
3237 phba->hb_tmofunc.function = lpfc_hb_timeout;
3238 phba->hb_tmofunc.data = (unsigned long)phba;
3239
3240 psli = &phba->sli;
3241 /* MBOX heartbeat timer */
3242 init_timer(&psli->mbox_tmo);
3243 psli->mbox_tmo.function = lpfc_mbox_timeout;
3244 psli->mbox_tmo.data = (unsigned long) phba;
3245 /* FCP polling mode timer */
3246 init_timer(&phba->fcp_poll_timer);
3247 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3248 phba->fcp_poll_timer.data = (unsigned long) phba;
3249 /* Fabric block timer */
3250 init_timer(&phba->fabric_block_timer);
3251 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3252 phba->fabric_block_timer.data = (unsigned long) phba;
3253 /* EA polling mode timer */
3254 init_timer(&phba->eratt_poll);
3255 phba->eratt_poll.function = lpfc_poll_eratt;
3256 phba->eratt_poll.data = (unsigned long) phba;
3257
3258 /* Host attention work mask setup */
3259 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3260 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3261
3262 /* Get all the module params for configuring this host */
3263 lpfc_get_cfgparam(phba);
3264 /*
3265 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3266 * used to create the sg_dma_buf_pool must be dynamically calculated.
3267 * 2 segments are added since the IOCB needs a command and response bde.
3268 */
3269 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3270 sizeof(struct fcp_rsp) +
3271 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3272
3273 if (phba->cfg_enable_bg) {
3274 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3275 phba->cfg_sg_dma_buf_size +=
3276 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3277 }
3278
3279 /* Also reinitialize the host templates with new values. */
3280 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3281 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3282
3283 phba->max_vpi = LPFC_MAX_VPI;
3284 /* This will be set to correct value after config_port mbox */
3285 phba->max_vports = 0;
3286
3287 /*
3288 * Initialize the SLI Layer to run with lpfc HBAs.
3289 */
3290 lpfc_sli_setup(phba);
3291 lpfc_sli_queue_setup(phba);
3292
3293 /* Allocate device driver memory */
3294 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3295 return -ENOMEM;
3296
3297 return 0;
3298 }
3299
3300 /**
3301 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3302 * @phba: pointer to lpfc hba data structure.
3303 *
3304 * This routine is invoked to unset the driver internal resources set up
3305 * specific for supporting the SLI-3 HBA device it attached to.
3306 **/
3307 static void
3308 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3309 {
3310 /* Free device driver memory allocated */
3311 lpfc_mem_free_all(phba);
3312
3313 return;
3314 }
3315
3316 /**
3317 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3318 * @phba: pointer to lpfc hba data structure.
3319 *
3320 * This routine is invoked to set up the driver internal resources specific to
3321 * support the SLI-4 HBA device it attached to.
3322 *
3323 * Return codes
3324 * 0 - sucessful
3325 * other values - error
3326 **/
3327 static int
3328 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3329 {
3330 struct lpfc_sli *psli;
3331 int rc;
3332 int i, hbq_count;
3333
3334 /* Before proceed, wait for POST done and device ready */
3335 rc = lpfc_sli4_post_status_check(phba);
3336 if (rc)
3337 return -ENODEV;
3338
3339 /*
3340 * Initialize timers used by driver
3341 */
3342
3343 /* Heartbeat timer */
3344 init_timer(&phba->hb_tmofunc);
3345 phba->hb_tmofunc.function = lpfc_hb_timeout;
3346 phba->hb_tmofunc.data = (unsigned long)phba;
3347
3348 psli = &phba->sli;
3349 /* MBOX heartbeat timer */
3350 init_timer(&psli->mbox_tmo);
3351 psli->mbox_tmo.function = lpfc_mbox_timeout;
3352 psli->mbox_tmo.data = (unsigned long) phba;
3353 /* Fabric block timer */
3354 init_timer(&phba->fabric_block_timer);
3355 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3356 phba->fabric_block_timer.data = (unsigned long) phba;
3357 /* EA polling mode timer */
3358 init_timer(&phba->eratt_poll);
3359 phba->eratt_poll.function = lpfc_poll_eratt;
3360 phba->eratt_poll.data = (unsigned long) phba;
3361 /*
3362 * We need to do a READ_CONFIG mailbox command here before
3363 * calling lpfc_get_cfgparam. For VFs this will report the
3364 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3365 * All of the resources allocated
3366 * for this Port are tied to these values.
3367 */
3368 /* Get all the module params for configuring this host */
3369 lpfc_get_cfgparam(phba);
3370 phba->max_vpi = LPFC_MAX_VPI;
3371 /* This will be set to correct value after the read_config mbox */
3372 phba->max_vports = 0;
3373
3374 /* Program the default value of vlan_id and fc_map */
3375 phba->valid_vlan = 0;
3376 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3377 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3378 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3379
3380 /*
3381 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3382 * used to create the sg_dma_buf_pool must be dynamically calculated.
3383 * 2 segments are added since the IOCB needs a command and response bde.
3384 * To insure that the scsi sgl does not cross a 4k page boundary only
3385 * sgl sizes of 1k, 2k, 4k, and 8k are supported.
3386 * Table of sgl sizes and seg_cnt:
3387 * sgl size, sg_seg_cnt total seg
3388 * 1k 50 52
3389 * 2k 114 116
3390 * 4k 242 244
3391 * 8k 498 500
3392 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024
3393 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048
3394 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096
3395 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192
3396 */
3397 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT)
3398 phba->cfg_sg_seg_cnt = 50;
3399 else if (phba->cfg_sg_seg_cnt <= 114)
3400 phba->cfg_sg_seg_cnt = 114;
3401 else if (phba->cfg_sg_seg_cnt <= 242)
3402 phba->cfg_sg_seg_cnt = 242;
3403 else
3404 phba->cfg_sg_seg_cnt = 498;
3405
3406 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd)
3407 + sizeof(struct fcp_rsp);
3408 phba->cfg_sg_dma_buf_size +=
3409 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
3410
3411 /* Initialize buffer queue management fields */
3412 hbq_count = lpfc_sli_hbq_count();
3413 for (i = 0; i < hbq_count; ++i)
3414 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3415 INIT_LIST_HEAD(&phba->rb_pend_list);
3416 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3417 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3418
3419 /*
3420 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3421 */
3422 /* Initialize the Abort scsi buffer list used by driver */
3423 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3424 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3425 /* This abort list used by worker thread */
3426 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3427
3428 /*
3429 * Initialize dirver internal slow-path work queues
3430 */
3431
3432 /* Driver internel slow-path CQ Event pool */
3433 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3434 /* Response IOCB work queue list */
3435 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue);
3436 /* Asynchronous event CQ Event work queue list */
3437 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3438 /* Fast-path XRI aborted CQ Event work queue list */
3439 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3440 /* Slow-path XRI aborted CQ Event work queue list */
3441 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3442 /* Receive queue CQ Event work queue list */
3443 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3444
3445 /* Initialize the driver internal SLI layer lists. */
3446 lpfc_sli_setup(phba);
3447 lpfc_sli_queue_setup(phba);
3448
3449 /* Allocate device driver memory */
3450 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
3451 if (rc)
3452 return -ENOMEM;
3453
3454 /* Create the bootstrap mailbox command */
3455 rc = lpfc_create_bootstrap_mbox(phba);
3456 if (unlikely(rc))
3457 goto out_free_mem;
3458
3459 /* Set up the host's endian order with the device. */
3460 rc = lpfc_setup_endian_order(phba);
3461 if (unlikely(rc))
3462 goto out_free_bsmbx;
3463
3464 /* Set up the hba's configuration parameters. */
3465 rc = lpfc_sli4_read_config(phba);
3466 if (unlikely(rc))
3467 goto out_free_bsmbx;
3468
3469 /* Perform a function reset */
3470 rc = lpfc_pci_function_reset(phba);
3471 if (unlikely(rc))
3472 goto out_free_bsmbx;
3473
3474 /* Create all the SLI4 queues */
3475 rc = lpfc_sli4_queue_create(phba);
3476 if (rc)
3477 goto out_free_bsmbx;
3478
3479 /* Create driver internal CQE event pool */
3480 rc = lpfc_sli4_cq_event_pool_create(phba);
3481 if (rc)
3482 goto out_destroy_queue;
3483
3484 /* Initialize and populate the iocb list per host */
3485 rc = lpfc_init_sgl_list(phba);
3486 if (rc) {
3487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3488 "1400 Failed to initialize sgl list.\n");
3489 goto out_destroy_cq_event_pool;
3490 }
3491 rc = lpfc_init_active_sgl_array(phba);
3492 if (rc) {
3493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3494 "1430 Failed to initialize sgl list.\n");
3495 goto out_free_sgl_list;
3496 }
3497
3498 rc = lpfc_sli4_init_rpi_hdrs(phba);
3499 if (rc) {
3500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3501 "1432 Failed to initialize rpi headers.\n");
3502 goto out_free_active_sgl;
3503 }
3504
3505 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
3506 phba->cfg_fcp_eq_count), GFP_KERNEL);
3507 if (!phba->sli4_hba.fcp_eq_hdl) {
3508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3509 "2572 Failed allocate memory for fast-path "
3510 "per-EQ handle array\n");
3511 goto out_remove_rpi_hdrs;
3512 }
3513
3514 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
3515 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
3516 if (!phba->sli4_hba.msix_entries) {
3517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3518 "2573 Failed allocate memory for msi-x "
3519 "interrupt vector entries\n");
3520 goto out_free_fcp_eq_hdl;
3521 }
3522
3523 return rc;
3524
3525 out_free_fcp_eq_hdl:
3526 kfree(phba->sli4_hba.fcp_eq_hdl);
3527 out_remove_rpi_hdrs:
3528 lpfc_sli4_remove_rpi_hdrs(phba);
3529 out_free_active_sgl:
3530 lpfc_free_active_sgl(phba);
3531 out_free_sgl_list:
3532 lpfc_free_sgl_list(phba);
3533 out_destroy_cq_event_pool:
3534 lpfc_sli4_cq_event_pool_destroy(phba);
3535 out_destroy_queue:
3536 lpfc_sli4_queue_destroy(phba);
3537 out_free_bsmbx:
3538 lpfc_destroy_bootstrap_mbox(phba);
3539 out_free_mem:
3540 lpfc_mem_free(phba);
3541 return rc;
3542 }
3543
3544 /**
3545 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
3546 * @phba: pointer to lpfc hba data structure.
3547 *
3548 * This routine is invoked to unset the driver internal resources set up
3549 * specific for supporting the SLI-4 HBA device it attached to.
3550 **/
3551 static void
3552 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
3553 {
3554 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
3555
3556 /* unregister default FCFI from the HBA */
3557 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
3558
3559 /* Free the default FCR table */
3560 lpfc_sli_remove_dflt_fcf(phba);
3561
3562 /* Free memory allocated for msi-x interrupt vector entries */
3563 kfree(phba->sli4_hba.msix_entries);
3564
3565 /* Free memory allocated for fast-path work queue handles */
3566 kfree(phba->sli4_hba.fcp_eq_hdl);
3567
3568 /* Free the allocated rpi headers. */
3569 lpfc_sli4_remove_rpi_hdrs(phba);
3570 lpfc_sli4_remove_rpis(phba);
3571
3572 /* Free the ELS sgl list */
3573 lpfc_free_active_sgl(phba);
3574 lpfc_free_sgl_list(phba);
3575
3576 /* Free the SCSI sgl management array */
3577 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3578
3579 /* Free the SLI4 queues */
3580 lpfc_sli4_queue_destroy(phba);
3581
3582 /* Free the completion queue EQ event pool */
3583 lpfc_sli4_cq_event_release_all(phba);
3584 lpfc_sli4_cq_event_pool_destroy(phba);
3585
3586 /* Reset SLI4 HBA FCoE function */
3587 lpfc_pci_function_reset(phba);
3588
3589 /* Free the bsmbx region. */
3590 lpfc_destroy_bootstrap_mbox(phba);
3591
3592 /* Free the SLI Layer memory with SLI4 HBAs */
3593 lpfc_mem_free_all(phba);
3594
3595 /* Free the current connect table */
3596 list_for_each_entry_safe(conn_entry, next_conn_entry,
3597 &phba->fcf_conn_rec_list, list)
3598 kfree(conn_entry);
3599
3600 return;
3601 }
3602
3603 /**
3604 * lpfc_init_api_table_setup - Set up init api fucntion jump table
3605 * @phba: The hba struct for which this call is being executed.
3606 * @dev_grp: The HBA PCI-Device group number.
3607 *
3608 * This routine sets up the device INIT interface API function jump table
3609 * in @phba struct.
3610 *
3611 * Returns: 0 - success, -ENODEV - failure.
3612 **/
3613 int
3614 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3615 {
3616 switch (dev_grp) {
3617 case LPFC_PCI_DEV_LP:
3618 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
3619 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
3620 phba->lpfc_stop_port = lpfc_stop_port_s3;
3621 break;
3622 case LPFC_PCI_DEV_OC:
3623 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
3624 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
3625 phba->lpfc_stop_port = lpfc_stop_port_s4;
3626 break;
3627 default:
3628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3629 "1431 Invalid HBA PCI-device group: 0x%x\n",
3630 dev_grp);
3631 return -ENODEV;
3632 break;
3633 }
3634 return 0;
3635 }
3636
3637 /**
3638 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
3639 * @phba: pointer to lpfc hba data structure.
3640 *
3641 * This routine is invoked to set up the driver internal resources before the
3642 * device specific resource setup to support the HBA device it attached to.
3643 *
3644 * Return codes
3645 * 0 - sucessful
3646 * other values - error
3647 **/
3648 static int
3649 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
3650 {
3651 /*
3652 * Driver resources common to all SLI revisions
3653 */
3654 atomic_set(&phba->fast_event_count, 0);
3655 spin_lock_init(&phba->hbalock);
3656
3657 /* Initialize ndlp management spinlock */
3658 spin_lock_init(&phba->ndlp_lock);
3659
3660 INIT_LIST_HEAD(&phba->port_list);
3661 INIT_LIST_HEAD(&phba->work_list);
3662 init_waitqueue_head(&phba->wait_4_mlo_m_q);
3663
3664 /* Initialize the wait queue head for the kernel thread */
3665 init_waitqueue_head(&phba->work_waitq);
3666
3667 /* Initialize the scsi buffer list used by driver for scsi IO */
3668 spin_lock_init(&phba->scsi_buf_list_lock);
3669 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
3670
3671 /* Initialize the fabric iocb list */
3672 INIT_LIST_HEAD(&phba->fabric_iocb_list);
3673
3674 /* Initialize list to save ELS buffers */
3675 INIT_LIST_HEAD(&phba->elsbuf);
3676
3677 /* Initialize FCF connection rec list */
3678 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
3679
3680 return 0;
3681 }
3682
3683 /**
3684 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
3685 * @phba: pointer to lpfc hba data structure.
3686 *
3687 * This routine is invoked to set up the driver internal resources after the
3688 * device specific resource setup to support the HBA device it attached to.
3689 *
3690 * Return codes
3691 * 0 - sucessful
3692 * other values - error
3693 **/
3694 static int
3695 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
3696 {
3697 int error;
3698
3699 /* Startup the kernel thread for this host adapter. */
3700 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3701 "lpfc_worker_%d", phba->brd_no);
3702 if (IS_ERR(phba->worker_thread)) {
3703 error = PTR_ERR(phba->worker_thread);
3704 return error;
3705 }
3706
3707 return 0;
3708 }
3709
3710 /**
3711 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
3712 * @phba: pointer to lpfc hba data structure.
3713 *
3714 * This routine is invoked to unset the driver internal resources set up after
3715 * the device specific resource setup for supporting the HBA device it
3716 * attached to.
3717 **/
3718 static void
3719 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
3720 {
3721 /* Stop kernel worker thread */
3722 kthread_stop(phba->worker_thread);
3723 }
3724
3725 /**
3726 * lpfc_free_iocb_list - Free iocb list.
3727 * @phba: pointer to lpfc hba data structure.
3728 *
3729 * This routine is invoked to free the driver's IOCB list and memory.
3730 **/
3731 static void
3732 lpfc_free_iocb_list(struct lpfc_hba *phba)
3733 {
3734 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
3735
3736 spin_lock_irq(&phba->hbalock);
3737 list_for_each_entry_safe(iocbq_entry, iocbq_next,
3738 &phba->lpfc_iocb_list, list) {
3739 list_del(&iocbq_entry->list);
3740 kfree(iocbq_entry);
3741 phba->total_iocbq_bufs--;
3742 }
3743 spin_unlock_irq(&phba->hbalock);
3744
3745 return;
3746 }
3747
3748 /**
3749 * lpfc_init_iocb_list - Allocate and initialize iocb list.
3750 * @phba: pointer to lpfc hba data structure.
3751 *
3752 * This routine is invoked to allocate and initizlize the driver's IOCB
3753 * list and set up the IOCB tag array accordingly.
3754 *
3755 * Return codes
3756 * 0 - sucessful
3757 * other values - error
3758 **/
3759 static int
3760 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
3761 {
3762 struct lpfc_iocbq *iocbq_entry = NULL;
3763 uint16_t iotag;
3764 int i;
3765
3766 /* Initialize and populate the iocb list per host. */
3767 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3768 for (i = 0; i < iocb_count; i++) {
3769 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
3770 if (iocbq_entry == NULL) {
3771 printk(KERN_ERR "%s: only allocated %d iocbs of "
3772 "expected %d count. Unloading driver.\n",
3773 __func__, i, LPFC_IOCB_LIST_CNT);
3774 goto out_free_iocbq;
3775 }
3776
3777 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
3778 if (iotag == 0) {
3779 kfree(iocbq_entry);
3780 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3781 "Unloading driver.\n", __func__);
3782 goto out_free_iocbq;
3783 }
3784 iocbq_entry->sli4_xritag = NO_XRI;
3785
3786 spin_lock_irq(&phba->hbalock);
3787 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
3788 phba->total_iocbq_bufs++;
3789 spin_unlock_irq(&phba->hbalock);
3790 }
3791
3792 return 0;
3793
3794 out_free_iocbq:
3795 lpfc_free_iocb_list(phba);
3796
3797 return -ENOMEM;
3798 }
3799
3800 /**
3801 * lpfc_free_sgl_list - Free sgl list.
3802 * @phba: pointer to lpfc hba data structure.
3803 *
3804 * This routine is invoked to free the driver's sgl list and memory.
3805 **/
3806 static void
3807 lpfc_free_sgl_list(struct lpfc_hba *phba)
3808 {
3809 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
3810 LIST_HEAD(sglq_list);
3811 int rc = 0;
3812
3813 spin_lock_irq(&phba->hbalock);
3814 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
3815 spin_unlock_irq(&phba->hbalock);
3816
3817 list_for_each_entry_safe(sglq_entry, sglq_next,
3818 &sglq_list, list) {
3819 list_del(&sglq_entry->list);
3820 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
3821 kfree(sglq_entry);
3822 phba->sli4_hba.total_sglq_bufs--;
3823 }
3824 rc = lpfc_sli4_remove_all_sgl_pages(phba);
3825 if (rc) {
3826 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3827 "2005 Unable to deregister pages from HBA: %x", rc);
3828 }
3829 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3830 }
3831
3832 /**
3833 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
3834 * @phba: pointer to lpfc hba data structure.
3835 *
3836 * This routine is invoked to allocate the driver's active sgl memory.
3837 * This array will hold the sglq_entry's for active IOs.
3838 **/
3839 static int
3840 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
3841 {
3842 int size;
3843 size = sizeof(struct lpfc_sglq *);
3844 size *= phba->sli4_hba.max_cfg_param.max_xri;
3845
3846 phba->sli4_hba.lpfc_sglq_active_list =
3847 kzalloc(size, GFP_KERNEL);
3848 if (!phba->sli4_hba.lpfc_sglq_active_list)
3849 return -ENOMEM;
3850 return 0;
3851 }
3852
3853 /**
3854 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3855 * @phba: pointer to lpfc hba data structure.
3856 *
3857 * This routine is invoked to walk through the array of active sglq entries
3858 * and free all of the resources.
3859 * This is just a place holder for now.
3860 **/
3861 static void
3862 lpfc_free_active_sgl(struct lpfc_hba *phba)
3863 {
3864 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3865 }
3866
3867 /**
3868 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3869 * @phba: pointer to lpfc hba data structure.
3870 *
3871 * This routine is invoked to allocate and initizlize the driver's sgl
3872 * list and set up the sgl xritag tag array accordingly.
3873 *
3874 * Return codes
3875 * 0 - sucessful
3876 * other values - error
3877 **/
3878 static int
3879 lpfc_init_sgl_list(struct lpfc_hba *phba)
3880 {
3881 struct lpfc_sglq *sglq_entry = NULL;
3882 int i;
3883 int els_xri_cnt;
3884
3885 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3886 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3887 "2400 lpfc_init_sgl_list els %d.\n",
3888 els_xri_cnt);
3889 /* Initialize and populate the sglq list per host/VF. */
3890 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
3891 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
3892
3893 /* Sanity check on XRI management */
3894 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
3895 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3896 "2562 No room left for SCSI XRI allocation: "
3897 "max_xri=%d, els_xri=%d\n",
3898 phba->sli4_hba.max_cfg_param.max_xri,
3899 els_xri_cnt);
3900 return -ENOMEM;
3901 }
3902
3903 /* Allocate memory for the ELS XRI management array */
3904 phba->sli4_hba.lpfc_els_sgl_array =
3905 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
3906 GFP_KERNEL);
3907
3908 if (!phba->sli4_hba.lpfc_els_sgl_array) {
3909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3910 "2401 Failed to allocate memory for ELS "
3911 "XRI management array of size %d.\n",
3912 els_xri_cnt);
3913 return -ENOMEM;
3914 }
3915
3916 /* Keep the SCSI XRI into the XRI management array */
3917 phba->sli4_hba.scsi_xri_max =
3918 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3919 phba->sli4_hba.scsi_xri_cnt = 0;
3920
3921 phba->sli4_hba.lpfc_scsi_psb_array =
3922 kzalloc((sizeof(struct lpfc_scsi_buf *) *
3923 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
3924
3925 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
3926 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3927 "2563 Failed to allocate memory for SCSI "
3928 "XRI management array of size %d.\n",
3929 phba->sli4_hba.scsi_xri_max);
3930 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3931 return -ENOMEM;
3932 }
3933
3934 for (i = 0; i < els_xri_cnt; i++) {
3935 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
3936 if (sglq_entry == NULL) {
3937 printk(KERN_ERR "%s: only allocated %d sgls of "
3938 "expected %d count. Unloading driver.\n",
3939 __func__, i, els_xri_cnt);
3940 goto out_free_mem;
3941 }
3942
3943 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
3944 if (sglq_entry->sli4_xritag == NO_XRI) {
3945 kfree(sglq_entry);
3946 printk(KERN_ERR "%s: failed to allocate XRI.\n"
3947 "Unloading driver.\n", __func__);
3948 goto out_free_mem;
3949 }
3950 sglq_entry->buff_type = GEN_BUFF_TYPE;
3951 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
3952 if (sglq_entry->virt == NULL) {
3953 kfree(sglq_entry);
3954 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
3955 "Unloading driver.\n", __func__);
3956 goto out_free_mem;
3957 }
3958 sglq_entry->sgl = sglq_entry->virt;
3959 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3960
3961 /* The list order is used by later block SGL registraton */
3962 spin_lock_irq(&phba->hbalock);
3963 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
3964 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
3965 phba->sli4_hba.total_sglq_bufs++;
3966 spin_unlock_irq(&phba->hbalock);
3967 }
3968 return 0;
3969
3970 out_free_mem:
3971 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3972 lpfc_free_sgl_list(phba);
3973 return -ENOMEM;
3974 }
3975
3976 /**
3977 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
3978 * @phba: pointer to lpfc hba data structure.
3979 *
3980 * This routine is invoked to post rpi header templates to the
3981 * HBA consistent with the SLI-4 interface spec. This routine
3982 * posts a PAGE_SIZE memory region to the port to hold up to
3983 * PAGE_SIZE modulo 64 rpi context headers.
3984 * No locks are held here because this is an initialization routine
3985 * called only from probe or lpfc_online when interrupts are not
3986 * enabled and the driver is reinitializing the device.
3987 *
3988 * Return codes
3989 * 0 - sucessful
3990 * ENOMEM - No availble memory
3991 * EIO - The mailbox failed to complete successfully.
3992 **/
3993 int
3994 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
3995 {
3996 int rc = 0;
3997 int longs;
3998 uint16_t rpi_count;
3999 struct lpfc_rpi_hdr *rpi_hdr;
4000
4001 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4002
4003 /*
4004 * Provision an rpi bitmask range for discovery. The total count
4005 * is the difference between max and base + 1.
4006 */
4007 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4008 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4009
4010 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4011 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4012 GFP_KERNEL);
4013 if (!phba->sli4_hba.rpi_bmask)
4014 return -ENOMEM;
4015
4016 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4017 if (!rpi_hdr) {
4018 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4019 "0391 Error during rpi post operation\n");
4020 lpfc_sli4_remove_rpis(phba);
4021 rc = -ENODEV;
4022 }
4023
4024 return rc;
4025 }
4026
4027 /**
4028 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4029 * @phba: pointer to lpfc hba data structure.
4030 *
4031 * This routine is invoked to allocate a single 4KB memory region to
4032 * support rpis and stores them in the phba. This single region
4033 * provides support for up to 64 rpis. The region is used globally
4034 * by the device.
4035 *
4036 * Returns:
4037 * A valid rpi hdr on success.
4038 * A NULL pointer on any failure.
4039 **/
4040 struct lpfc_rpi_hdr *
4041 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4042 {
4043 uint16_t rpi_limit, curr_rpi_range;
4044 struct lpfc_dmabuf *dmabuf;
4045 struct lpfc_rpi_hdr *rpi_hdr;
4046
4047 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4048 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4049
4050 spin_lock_irq(&phba->hbalock);
4051 curr_rpi_range = phba->sli4_hba.next_rpi;
4052 spin_unlock_irq(&phba->hbalock);
4053
4054 /*
4055 * The port has a limited number of rpis. The increment here
4056 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4057 * and to allow the full max_rpi range per port.
4058 */
4059 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4060 return NULL;
4061
4062 /*
4063 * First allocate the protocol header region for the port. The
4064 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4065 */
4066 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4067 if (!dmabuf)
4068 return NULL;
4069
4070 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4071 LPFC_HDR_TEMPLATE_SIZE,
4072 &dmabuf->phys,
4073 GFP_KERNEL);
4074 if (!dmabuf->virt) {
4075 rpi_hdr = NULL;
4076 goto err_free_dmabuf;
4077 }
4078
4079 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4080 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4081 rpi_hdr = NULL;
4082 goto err_free_coherent;
4083 }
4084
4085 /* Save the rpi header data for cleanup later. */
4086 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4087 if (!rpi_hdr)
4088 goto err_free_coherent;
4089
4090 rpi_hdr->dmabuf = dmabuf;
4091 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4092 rpi_hdr->page_count = 1;
4093 spin_lock_irq(&phba->hbalock);
4094 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4095 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4096
4097 /*
4098 * The next_rpi stores the next module-64 rpi value to post
4099 * in any subsequent rpi memory region postings.
4100 */
4101 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4102 spin_unlock_irq(&phba->hbalock);
4103 return rpi_hdr;
4104
4105 err_free_coherent:
4106 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4107 dmabuf->virt, dmabuf->phys);
4108 err_free_dmabuf:
4109 kfree(dmabuf);
4110 return NULL;
4111 }
4112
4113 /**
4114 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4115 * @phba: pointer to lpfc hba data structure.
4116 *
4117 * This routine is invoked to remove all memory resources allocated
4118 * to support rpis. This routine presumes the caller has released all
4119 * rpis consumed by fabric or port logins and is prepared to have
4120 * the header pages removed.
4121 **/
4122 void
4123 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4124 {
4125 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4126
4127 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4128 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4129 list_del(&rpi_hdr->list);
4130 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4131 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4132 kfree(rpi_hdr->dmabuf);
4133 kfree(rpi_hdr);
4134 }
4135
4136 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4137 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4138 }
4139
4140 /**
4141 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4142 * @pdev: pointer to pci device data structure.
4143 *
4144 * This routine is invoked to allocate the driver hba data structure for an
4145 * HBA device. If the allocation is successful, the phba reference to the
4146 * PCI device data structure is set.
4147 *
4148 * Return codes
4149 * pointer to @phba - sucessful
4150 * NULL - error
4151 **/
4152 static struct lpfc_hba *
4153 lpfc_hba_alloc(struct pci_dev *pdev)
4154 {
4155 struct lpfc_hba *phba;
4156
4157 /* Allocate memory for HBA structure */
4158 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4159 if (!phba) {
4160 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4161 return NULL;
4162 }
4163
4164 /* Set reference to PCI device in HBA structure */
4165 phba->pcidev = pdev;
4166
4167 /* Assign an unused board number */
4168 phba->brd_no = lpfc_get_instance();
4169 if (phba->brd_no < 0) {
4170 kfree(phba);
4171 return NULL;
4172 }
4173
4174 mutex_init(&phba->ct_event_mutex);
4175 INIT_LIST_HEAD(&phba->ct_ev_waiters);
4176
4177 return phba;
4178 }
4179
4180 /**
4181 * lpfc_hba_free - Free driver hba data structure with a device.
4182 * @phba: pointer to lpfc hba data structure.
4183 *
4184 * This routine is invoked to free the driver hba data structure with an
4185 * HBA device.
4186 **/
4187 static void
4188 lpfc_hba_free(struct lpfc_hba *phba)
4189 {
4190 /* Release the driver assigned board number */
4191 idr_remove(&lpfc_hba_index, phba->brd_no);
4192
4193 kfree(phba);
4194 return;
4195 }
4196
4197 /**
4198 * lpfc_create_shost - Create hba physical port with associated scsi host.
4199 * @phba: pointer to lpfc hba data structure.
4200 *
4201 * This routine is invoked to create HBA physical port and associate a SCSI
4202 * host with it.
4203 *
4204 * Return codes
4205 * 0 - sucessful
4206 * other values - error
4207 **/
4208 static int
4209 lpfc_create_shost(struct lpfc_hba *phba)
4210 {
4211 struct lpfc_vport *vport;
4212 struct Scsi_Host *shost;
4213
4214 /* Initialize HBA FC structure */
4215 phba->fc_edtov = FF_DEF_EDTOV;
4216 phba->fc_ratov = FF_DEF_RATOV;
4217 phba->fc_altov = FF_DEF_ALTOV;
4218 phba->fc_arbtov = FF_DEF_ARBTOV;
4219
4220 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4221 if (!vport)
4222 return -ENODEV;
4223
4224 shost = lpfc_shost_from_vport(vport);
4225 phba->pport = vport;
4226 lpfc_debugfs_initialize(vport);
4227 /* Put reference to SCSI host to driver's device private data */
4228 pci_set_drvdata(phba->pcidev, shost);
4229
4230 return 0;
4231 }
4232
4233 /**
4234 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4235 * @phba: pointer to lpfc hba data structure.
4236 *
4237 * This routine is invoked to destroy HBA physical port and the associated
4238 * SCSI host.
4239 **/
4240 static void
4241 lpfc_destroy_shost(struct lpfc_hba *phba)
4242 {
4243 struct lpfc_vport *vport = phba->pport;
4244
4245 /* Destroy physical port that associated with the SCSI host */
4246 destroy_port(vport);
4247
4248 return;
4249 }
4250
4251 /**
4252 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4253 * @phba: pointer to lpfc hba data structure.
4254 * @shost: the shost to be used to detect Block guard settings.
4255 *
4256 * This routine sets up the local Block guard protocol settings for @shost.
4257 * This routine also allocates memory for debugging bg buffers.
4258 **/
4259 static void
4260 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4261 {
4262 int pagecnt = 10;
4263 if (lpfc_prot_mask && lpfc_prot_guard) {
4264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4265 "1478 Registering BlockGuard with the "
4266 "SCSI layer\n");
4267 scsi_host_set_prot(shost, lpfc_prot_mask);
4268 scsi_host_set_guard(shost, lpfc_prot_guard);
4269 }
4270 if (!_dump_buf_data) {
4271 while (pagecnt) {
4272 spin_lock_init(&_dump_buf_lock);
4273 _dump_buf_data =
4274 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4275 if (_dump_buf_data) {
4276 printk(KERN_ERR "BLKGRD allocated %d pages for "
4277 "_dump_buf_data at 0x%p\n",
4278 (1 << pagecnt), _dump_buf_data);
4279 _dump_buf_data_order = pagecnt;
4280 memset(_dump_buf_data, 0,
4281 ((1 << PAGE_SHIFT) << pagecnt));
4282 break;
4283 } else
4284 --pagecnt;
4285 }
4286 if (!_dump_buf_data_order)
4287 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
4288 "memory for hexdump\n");
4289 } else
4290 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
4291 "\n", _dump_buf_data);
4292 if (!_dump_buf_dif) {
4293 while (pagecnt) {
4294 _dump_buf_dif =
4295 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4296 if (_dump_buf_dif) {
4297 printk(KERN_ERR "BLKGRD allocated %d pages for "
4298 "_dump_buf_dif at 0x%p\n",
4299 (1 << pagecnt), _dump_buf_dif);
4300 _dump_buf_dif_order = pagecnt;
4301 memset(_dump_buf_dif, 0,
4302 ((1 << PAGE_SHIFT) << pagecnt));
4303 break;
4304 } else
4305 --pagecnt;
4306 }
4307 if (!_dump_buf_dif_order)
4308 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
4309 "memory for hexdump\n");
4310 } else
4311 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
4312 _dump_buf_dif);
4313 }
4314
4315 /**
4316 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4317 * @phba: pointer to lpfc hba data structure.
4318 *
4319 * This routine is invoked to perform all the necessary post initialization
4320 * setup for the device.
4321 **/
4322 static void
4323 lpfc_post_init_setup(struct lpfc_hba *phba)
4324 {
4325 struct Scsi_Host *shost;
4326 struct lpfc_adapter_event_header adapter_event;
4327
4328 /* Get the default values for Model Name and Description */
4329 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4330
4331 /*
4332 * hba setup may have changed the hba_queue_depth so we need to
4333 * adjust the value of can_queue.
4334 */
4335 shost = pci_get_drvdata(phba->pcidev);
4336 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4337 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4338 lpfc_setup_bg(phba, shost);
4339
4340 lpfc_host_attrib_init(shost);
4341
4342 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4343 spin_lock_irq(shost->host_lock);
4344 lpfc_poll_start_timer(phba);
4345 spin_unlock_irq(shost->host_lock);
4346 }
4347
4348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4349 "0428 Perform SCSI scan\n");
4350 /* Send board arrival event to upper layer */
4351 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4352 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4353 fc_host_post_vendor_event(shost, fc_get_event_number(),
4354 sizeof(adapter_event),
4355 (char *) &adapter_event,
4356 LPFC_NL_VENDOR_ID);
4357 return;
4358 }
4359
4360 /**
4361 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4362 * @phba: pointer to lpfc hba data structure.
4363 *
4364 * This routine is invoked to set up the PCI device memory space for device
4365 * with SLI-3 interface spec.
4366 *
4367 * Return codes
4368 * 0 - sucessful
4369 * other values - error
4370 **/
4371 static int
4372 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4373 {
4374 struct pci_dev *pdev;
4375 unsigned long bar0map_len, bar2map_len;
4376 int i, hbq_count;
4377 void *ptr;
4378 int error = -ENODEV;
4379
4380 /* Obtain PCI device reference */
4381 if (!phba->pcidev)
4382 return error;
4383 else
4384 pdev = phba->pcidev;
4385
4386 /* Set the device DMA mask size */
4387 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
4388 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
4389 return error;
4390
4391 /* Get the bus address of Bar0 and Bar2 and the number of bytes
4392 * required by each mapping.
4393 */
4394 phba->pci_bar0_map = pci_resource_start(pdev, 0);
4395 bar0map_len = pci_resource_len(pdev, 0);
4396
4397 phba->pci_bar2_map = pci_resource_start(pdev, 2);
4398 bar2map_len = pci_resource_len(pdev, 2);
4399
4400 /* Map HBA SLIM to a kernel virtual address. */
4401 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
4402 if (!phba->slim_memmap_p) {
4403 dev_printk(KERN_ERR, &pdev->dev,
4404 "ioremap failed for SLIM memory.\n");
4405 goto out;
4406 }
4407
4408 /* Map HBA Control Registers to a kernel virtual address. */
4409 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
4410 if (!phba->ctrl_regs_memmap_p) {
4411 dev_printk(KERN_ERR, &pdev->dev,
4412 "ioremap failed for HBA control registers.\n");
4413 goto out_iounmap_slim;
4414 }
4415
4416 /* Allocate memory for SLI-2 structures */
4417 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
4418 SLI2_SLIM_SIZE,
4419 &phba->slim2p.phys,
4420 GFP_KERNEL);
4421 if (!phba->slim2p.virt)
4422 goto out_iounmap;
4423
4424 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
4425 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
4426 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
4427 phba->IOCBs = (phba->slim2p.virt +
4428 offsetof(struct lpfc_sli2_slim, IOCBs));
4429
4430 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
4431 lpfc_sli_hbq_size(),
4432 &phba->hbqslimp.phys,
4433 GFP_KERNEL);
4434 if (!phba->hbqslimp.virt)
4435 goto out_free_slim;
4436
4437 hbq_count = lpfc_sli_hbq_count();
4438 ptr = phba->hbqslimp.virt;
4439 for (i = 0; i < hbq_count; ++i) {
4440 phba->hbqs[i].hbq_virt = ptr;
4441 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4442 ptr += (lpfc_hbq_defs[i]->entry_count *
4443 sizeof(struct lpfc_hbq_entry));
4444 }
4445 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
4446 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
4447
4448 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
4449
4450 INIT_LIST_HEAD(&phba->rb_pend_list);
4451
4452 phba->MBslimaddr = phba->slim_memmap_p;
4453 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
4454 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
4455 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
4456 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
4457
4458 return 0;
4459
4460 out_free_slim:
4461 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4462 phba->slim2p.virt, phba->slim2p.phys);
4463 out_iounmap:
4464 iounmap(phba->ctrl_regs_memmap_p);
4465 out_iounmap_slim:
4466 iounmap(phba->slim_memmap_p);
4467 out:
4468 return error;
4469 }
4470
4471 /**
4472 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
4473 * @phba: pointer to lpfc hba data structure.
4474 *
4475 * This routine is invoked to unset the PCI device memory space for device
4476 * with SLI-3 interface spec.
4477 **/
4478 static void
4479 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
4480 {
4481 struct pci_dev *pdev;
4482
4483 /* Obtain PCI device reference */
4484 if (!phba->pcidev)
4485 return;
4486 else
4487 pdev = phba->pcidev;
4488
4489 /* Free coherent DMA memory allocated */
4490 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
4491 phba->hbqslimp.virt, phba->hbqslimp.phys);
4492 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4493 phba->slim2p.virt, phba->slim2p.phys);
4494
4495 /* I/O memory unmap */
4496 iounmap(phba->ctrl_regs_memmap_p);
4497 iounmap(phba->slim_memmap_p);
4498
4499 return;
4500 }
4501
4502 /**
4503 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4504 * @phba: pointer to lpfc hba data structure.
4505 *
4506 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
4507 * done and check status.
4508 *
4509 * Return 0 if successful, otherwise -ENODEV.
4510 **/
4511 int
4512 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4513 {
4514 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
4515 uint32_t onlnreg0, onlnreg1;
4516 int i, port_error = -ENODEV;
4517
4518 if (!phba->sli4_hba.STAregaddr)
4519 return -ENODEV;
4520
4521 /* Wait up to 30 seconds for the SLI Port POST done and ready */
4522 for (i = 0; i < 3000; i++) {
4523 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
4524 /* Encounter fatal POST error, break out */
4525 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
4526 port_error = -ENODEV;
4527 break;
4528 }
4529 if (LPFC_POST_STAGE_ARMFW_READY ==
4530 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
4531 port_error = 0;
4532 break;
4533 }
4534 msleep(10);
4535 }
4536
4537 if (port_error)
4538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4539 "1408 Failure HBA POST Status: sta_reg=0x%x, "
4540 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
4541 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
4542 bf_get(lpfc_hst_state_perr, &sta_reg),
4543 bf_get(lpfc_hst_state_sfi, &sta_reg),
4544 bf_get(lpfc_hst_state_nip, &sta_reg),
4545 bf_get(lpfc_hst_state_ipc, &sta_reg),
4546 bf_get(lpfc_hst_state_xrom, &sta_reg),
4547 bf_get(lpfc_hst_state_dl, &sta_reg),
4548 bf_get(lpfc_hst_state_port_status, &sta_reg));
4549
4550 /* Log device information */
4551 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr);
4552 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4553 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
4554 "FeatureL1=0x%x, FeatureL2=0x%x\n",
4555 bf_get(lpfc_scratchpad_chiptype, &scratchpad),
4556 bf_get(lpfc_scratchpad_slirev, &scratchpad),
4557 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
4558 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
4559
4560 /* With uncoverable error, log the error message and return error */
4561 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
4562 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
4563 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
4564 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
4565 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
4566 if (uerrlo_reg.word0 || uerrhi_reg.word0) {
4567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4568 "1422 HBA Unrecoverable error: "
4569 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
4570 "online0_reg=0x%x, online1_reg=0x%x\n",
4571 uerrlo_reg.word0, uerrhi_reg.word0,
4572 onlnreg0, onlnreg1);
4573 }
4574 return -ENODEV;
4575 }
4576
4577 return port_error;
4578 }
4579
4580 /**
4581 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
4582 * @phba: pointer to lpfc hba data structure.
4583 *
4584 * This routine is invoked to set up SLI4 BAR0 PCI config space register
4585 * memory map.
4586 **/
4587 static void
4588 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
4589 {
4590 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
4591 LPFC_UERR_STATUS_LO;
4592 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
4593 LPFC_UERR_STATUS_HI;
4594 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p +
4595 LPFC_ONLINE0;
4596 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p +
4597 LPFC_ONLINE1;
4598 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
4599 LPFC_SCRATCHPAD;
4600 }
4601
4602 /**
4603 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
4604 * @phba: pointer to lpfc hba data structure.
4605 *
4606 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
4607 * memory map.
4608 **/
4609 static void
4610 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
4611 {
4612
4613 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4614 LPFC_HST_STATE;
4615 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4616 LPFC_HST_ISR0;
4617 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4618 LPFC_HST_IMR0;
4619 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4620 LPFC_HST_ISCR0;
4621 return;
4622 }
4623
4624 /**
4625 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
4626 * @phba: pointer to lpfc hba data structure.
4627 * @vf: virtual function number
4628 *
4629 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
4630 * based on the given viftual function number, @vf.
4631 *
4632 * Return 0 if successful, otherwise -ENODEV.
4633 **/
4634 static int
4635 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
4636 {
4637 if (vf > LPFC_VIR_FUNC_MAX)
4638 return -ENODEV;
4639
4640 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4641 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
4642 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4643 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
4644 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4645 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
4646 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4647 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
4648 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4649 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
4650 return 0;
4651 }
4652
4653 /**
4654 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
4655 * @phba: pointer to lpfc hba data structure.
4656 *
4657 * This routine is invoked to create the bootstrap mailbox
4658 * region consistent with the SLI-4 interface spec. This
4659 * routine allocates all memory necessary to communicate
4660 * mailbox commands to the port and sets up all alignment
4661 * needs. No locks are expected to be held when calling
4662 * this routine.
4663 *
4664 * Return codes
4665 * 0 - sucessful
4666 * ENOMEM - could not allocated memory.
4667 **/
4668 static int
4669 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
4670 {
4671 uint32_t bmbx_size;
4672 struct lpfc_dmabuf *dmabuf;
4673 struct dma_address *dma_address;
4674 uint32_t pa_addr;
4675 uint64_t phys_addr;
4676
4677 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4678 if (!dmabuf)
4679 return -ENOMEM;
4680
4681 /*
4682 * The bootstrap mailbox region is comprised of 2 parts
4683 * plus an alignment restriction of 16 bytes.
4684 */
4685 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
4686 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4687 bmbx_size,
4688 &dmabuf->phys,
4689 GFP_KERNEL);
4690 if (!dmabuf->virt) {
4691 kfree(dmabuf);
4692 return -ENOMEM;
4693 }
4694 memset(dmabuf->virt, 0, bmbx_size);
4695
4696 /*
4697 * Initialize the bootstrap mailbox pointers now so that the register
4698 * operations are simple later. The mailbox dma address is required
4699 * to be 16-byte aligned. Also align the virtual memory as each
4700 * maibox is copied into the bmbx mailbox region before issuing the
4701 * command to the port.
4702 */
4703 phba->sli4_hba.bmbx.dmabuf = dmabuf;
4704 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
4705
4706 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
4707 LPFC_ALIGN_16_BYTE);
4708 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
4709 LPFC_ALIGN_16_BYTE);
4710
4711 /*
4712 * Set the high and low physical addresses now. The SLI4 alignment
4713 * requirement is 16 bytes and the mailbox is posted to the port
4714 * as two 30-bit addresses. The other data is a bit marking whether
4715 * the 30-bit address is the high or low address.
4716 * Upcast bmbx aphys to 64bits so shift instruction compiles
4717 * clean on 32 bit machines.
4718 */
4719 dma_address = &phba->sli4_hba.bmbx.dma_address;
4720 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
4721 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
4722 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
4723 LPFC_BMBX_BIT1_ADDR_HI);
4724
4725 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
4726 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
4727 LPFC_BMBX_BIT1_ADDR_LO);
4728 return 0;
4729 }
4730
4731 /**
4732 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
4733 * @phba: pointer to lpfc hba data structure.
4734 *
4735 * This routine is invoked to teardown the bootstrap mailbox
4736 * region and release all host resources. This routine requires
4737 * the caller to ensure all mailbox commands recovered, no
4738 * additional mailbox comands are sent, and interrupts are disabled
4739 * before calling this routine.
4740 *
4741 **/
4742 static void
4743 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
4744 {
4745 dma_free_coherent(&phba->pcidev->dev,
4746 phba->sli4_hba.bmbx.bmbx_size,
4747 phba->sli4_hba.bmbx.dmabuf->virt,
4748 phba->sli4_hba.bmbx.dmabuf->phys);
4749
4750 kfree(phba->sli4_hba.bmbx.dmabuf);
4751 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
4752 }
4753
4754 /**
4755 * lpfc_sli4_read_config - Get the config parameters.
4756 * @phba: pointer to lpfc hba data structure.
4757 *
4758 * This routine is invoked to read the configuration parameters from the HBA.
4759 * The configuration parameters are used to set the base and maximum values
4760 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
4761 * allocation for the port.
4762 *
4763 * Return codes
4764 * 0 - sucessful
4765 * ENOMEM - No availble memory
4766 * EIO - The mailbox failed to complete successfully.
4767 **/
4768 static int
4769 lpfc_sli4_read_config(struct lpfc_hba *phba)
4770 {
4771 LPFC_MBOXQ_t *pmb;
4772 struct lpfc_mbx_read_config *rd_config;
4773 uint32_t rc = 0;
4774
4775 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4776 if (!pmb) {
4777 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4778 "2011 Unable to allocate memory for issuing "
4779 "SLI_CONFIG_SPECIAL mailbox command\n");
4780 return -ENOMEM;
4781 }
4782
4783 lpfc_read_config(phba, pmb);
4784
4785 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4786 if (rc != MBX_SUCCESS) {
4787 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4788 "2012 Mailbox failed , mbxCmd x%x "
4789 "READ_CONFIG, mbxStatus x%x\n",
4790 bf_get(lpfc_mqe_command, &pmb->u.mqe),
4791 bf_get(lpfc_mqe_status, &pmb->u.mqe));
4792 rc = -EIO;
4793 } else {
4794 rd_config = &pmb->u.mqe.un.rd_config;
4795 phba->sli4_hba.max_cfg_param.max_xri =
4796 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
4797 phba->sli4_hba.max_cfg_param.xri_base =
4798 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
4799 phba->sli4_hba.max_cfg_param.max_vpi =
4800 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
4801 phba->sli4_hba.max_cfg_param.vpi_base =
4802 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
4803 phba->sli4_hba.max_cfg_param.max_rpi =
4804 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
4805 phba->sli4_hba.max_cfg_param.rpi_base =
4806 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
4807 phba->sli4_hba.max_cfg_param.max_vfi =
4808 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
4809 phba->sli4_hba.max_cfg_param.vfi_base =
4810 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
4811 phba->sli4_hba.max_cfg_param.max_fcfi =
4812 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
4813 phba->sli4_hba.max_cfg_param.fcfi_base =
4814 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
4815 phba->sli4_hba.max_cfg_param.max_eq =
4816 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
4817 phba->sli4_hba.max_cfg_param.max_rq =
4818 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
4819 phba->sli4_hba.max_cfg_param.max_wq =
4820 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
4821 phba->sli4_hba.max_cfg_param.max_cq =
4822 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
4823 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
4824 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
4825 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
4826 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
4827 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4828 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi;
4829 phba->max_vports = phba->max_vpi;
4830 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4831 "2003 cfg params XRI(B:%d M:%d), "
4832 "VPI(B:%d M:%d) "
4833 "VFI(B:%d M:%d) "
4834 "RPI(B:%d M:%d) "
4835 "FCFI(B:%d M:%d)\n",
4836 phba->sli4_hba.max_cfg_param.xri_base,
4837 phba->sli4_hba.max_cfg_param.max_xri,
4838 phba->sli4_hba.max_cfg_param.vpi_base,
4839 phba->sli4_hba.max_cfg_param.max_vpi,
4840 phba->sli4_hba.max_cfg_param.vfi_base,
4841 phba->sli4_hba.max_cfg_param.max_vfi,
4842 phba->sli4_hba.max_cfg_param.rpi_base,
4843 phba->sli4_hba.max_cfg_param.max_rpi,
4844 phba->sli4_hba.max_cfg_param.fcfi_base,
4845 phba->sli4_hba.max_cfg_param.max_fcfi);
4846 }
4847 mempool_free(pmb, phba->mbox_mem_pool);
4848
4849 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
4850 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
4851 phba->cfg_hba_queue_depth =
4852 phba->sli4_hba.max_cfg_param.max_xri;
4853 return rc;
4854 }
4855
4856 /**
4857 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
4858 * @phba: pointer to lpfc hba data structure.
4859 *
4860 * This routine is invoked to setup the host-side endian order to the
4861 * HBA consistent with the SLI-4 interface spec.
4862 *
4863 * Return codes
4864 * 0 - sucessful
4865 * ENOMEM - No availble memory
4866 * EIO - The mailbox failed to complete successfully.
4867 **/
4868 static int
4869 lpfc_setup_endian_order(struct lpfc_hba *phba)
4870 {
4871 LPFC_MBOXQ_t *mboxq;
4872 uint32_t rc = 0;
4873 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
4874 HOST_ENDIAN_HIGH_WORD1};
4875
4876 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4877 if (!mboxq) {
4878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4879 "0492 Unable to allocate memory for issuing "
4880 "SLI_CONFIG_SPECIAL mailbox command\n");
4881 return -ENOMEM;
4882 }
4883
4884 /*
4885 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
4886 * words to contain special data values and no other data.
4887 */
4888 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
4889 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
4890 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4891 if (rc != MBX_SUCCESS) {
4892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4893 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
4894 "status x%x\n",
4895 rc);
4896 rc = -EIO;
4897 }
4898
4899 mempool_free(mboxq, phba->mbox_mem_pool);
4900 return rc;
4901 }
4902
4903 /**
4904 * lpfc_sli4_queue_create - Create all the SLI4 queues
4905 * @phba: pointer to lpfc hba data structure.
4906 *
4907 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
4908 * operation. For each SLI4 queue type, the parameters such as queue entry
4909 * count (queue depth) shall be taken from the module parameter. For now,
4910 * we just use some constant number as place holder.
4911 *
4912 * Return codes
4913 * 0 - sucessful
4914 * ENOMEM - No availble memory
4915 * EIO - The mailbox failed to complete successfully.
4916 **/
4917 static int
4918 lpfc_sli4_queue_create(struct lpfc_hba *phba)
4919 {
4920 struct lpfc_queue *qdesc;
4921 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
4922 int cfg_fcp_wq_count;
4923 int cfg_fcp_eq_count;
4924
4925 /*
4926 * Sanity check for confiugred queue parameters against the run-time
4927 * device parameters
4928 */
4929
4930 /* Sanity check on FCP fast-path WQ parameters */
4931 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
4932 if (cfg_fcp_wq_count >
4933 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
4934 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
4935 LPFC_SP_WQN_DEF;
4936 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
4937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4938 "2581 Not enough WQs (%d) from "
4939 "the pci function for supporting "
4940 "FCP WQs (%d)\n",
4941 phba->sli4_hba.max_cfg_param.max_wq,
4942 phba->cfg_fcp_wq_count);
4943 goto out_error;
4944 }
4945 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4946 "2582 Not enough WQs (%d) from the pci "
4947 "function for supporting the requested "
4948 "FCP WQs (%d), the actual FCP WQs can "
4949 "be supported: %d\n",
4950 phba->sli4_hba.max_cfg_param.max_wq,
4951 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
4952 }
4953 /* The actual number of FCP work queues adopted */
4954 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
4955
4956 /* Sanity check on FCP fast-path EQ parameters */
4957 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
4958 if (cfg_fcp_eq_count >
4959 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
4960 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
4961 LPFC_SP_EQN_DEF;
4962 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
4963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4964 "2574 Not enough EQs (%d) from the "
4965 "pci function for supporting FCP "
4966 "EQs (%d)\n",
4967 phba->sli4_hba.max_cfg_param.max_eq,
4968 phba->cfg_fcp_eq_count);
4969 goto out_error;
4970 }
4971 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4972 "2575 Not enough EQs (%d) from the pci "
4973 "function for supporting the requested "
4974 "FCP EQs (%d), the actual FCP EQs can "
4975 "be supported: %d\n",
4976 phba->sli4_hba.max_cfg_param.max_eq,
4977 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
4978 }
4979 /* It does not make sense to have more EQs than WQs */
4980 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
4981 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4982 "2593 The number of FCP EQs (%d) is more "
4983 "than the number of FCP WQs (%d), take "
4984 "the number of FCP EQs same as than of "
4985 "WQs (%d)\n", cfg_fcp_eq_count,
4986 phba->cfg_fcp_wq_count,
4987 phba->cfg_fcp_wq_count);
4988 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
4989 }
4990 /* The actual number of FCP event queues adopted */
4991 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
4992 /* The overall number of event queues used */
4993 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
4994
4995 /*
4996 * Create Event Queues (EQs)
4997 */
4998
4999 /* Get EQ depth from module parameter, fake the default for now */
5000 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5001 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5002
5003 /* Create slow path event queue */
5004 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5005 phba->sli4_hba.eq_ecount);
5006 if (!qdesc) {
5007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5008 "0496 Failed allocate slow-path EQ\n");
5009 goto out_error;
5010 }
5011 phba->sli4_hba.sp_eq = qdesc;
5012
5013 /* Create fast-path FCP Event Queue(s) */
5014 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5015 phba->cfg_fcp_eq_count), GFP_KERNEL);
5016 if (!phba->sli4_hba.fp_eq) {
5017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5018 "2576 Failed allocate memory for fast-path "
5019 "EQ record array\n");
5020 goto out_free_sp_eq;
5021 }
5022 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5023 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5024 phba->sli4_hba.eq_ecount);
5025 if (!qdesc) {
5026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5027 "0497 Failed allocate fast-path EQ\n");
5028 goto out_free_fp_eq;
5029 }
5030 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5031 }
5032
5033 /*
5034 * Create Complete Queues (CQs)
5035 */
5036
5037 /* Get CQ depth from module parameter, fake the default for now */
5038 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5039 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5040
5041 /* Create slow-path Mailbox Command Complete Queue */
5042 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5043 phba->sli4_hba.cq_ecount);
5044 if (!qdesc) {
5045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5046 "0500 Failed allocate slow-path mailbox CQ\n");
5047 goto out_free_fp_eq;
5048 }
5049 phba->sli4_hba.mbx_cq = qdesc;
5050
5051 /* Create slow-path ELS Complete Queue */
5052 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5053 phba->sli4_hba.cq_ecount);
5054 if (!qdesc) {
5055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5056 "0501 Failed allocate slow-path ELS CQ\n");
5057 goto out_free_mbx_cq;
5058 }
5059 phba->sli4_hba.els_cq = qdesc;
5060
5061 /* Create slow-path Unsolicited Receive Complete Queue */
5062 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5063 phba->sli4_hba.cq_ecount);
5064 if (!qdesc) {
5065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5066 "0502 Failed allocate slow-path USOL RX CQ\n");
5067 goto out_free_els_cq;
5068 }
5069 phba->sli4_hba.rxq_cq = qdesc;
5070
5071 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5072 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5073 phba->cfg_fcp_eq_count), GFP_KERNEL);
5074 if (!phba->sli4_hba.fcp_cq) {
5075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5076 "2577 Failed allocate memory for fast-path "
5077 "CQ record array\n");
5078 goto out_free_rxq_cq;
5079 }
5080 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5081 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5082 phba->sli4_hba.cq_ecount);
5083 if (!qdesc) {
5084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5085 "0499 Failed allocate fast-path FCP "
5086 "CQ (%d)\n", fcp_cqidx);
5087 goto out_free_fcp_cq;
5088 }
5089 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5090 }
5091
5092 /* Create Mailbox Command Queue */
5093 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5094 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5095
5096 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5097 phba->sli4_hba.mq_ecount);
5098 if (!qdesc) {
5099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5100 "0505 Failed allocate slow-path MQ\n");
5101 goto out_free_fcp_cq;
5102 }
5103 phba->sli4_hba.mbx_wq = qdesc;
5104
5105 /*
5106 * Create all the Work Queues (WQs)
5107 */
5108 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5109 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5110
5111 /* Create slow-path ELS Work Queue */
5112 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5113 phba->sli4_hba.wq_ecount);
5114 if (!qdesc) {
5115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5116 "0504 Failed allocate slow-path ELS WQ\n");
5117 goto out_free_mbx_wq;
5118 }
5119 phba->sli4_hba.els_wq = qdesc;
5120
5121 /* Create fast-path FCP Work Queue(s) */
5122 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5123 phba->cfg_fcp_wq_count), GFP_KERNEL);
5124 if (!phba->sli4_hba.fcp_wq) {
5125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5126 "2578 Failed allocate memory for fast-path "
5127 "WQ record array\n");
5128 goto out_free_els_wq;
5129 }
5130 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5131 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5132 phba->sli4_hba.wq_ecount);
5133 if (!qdesc) {
5134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5135 "0503 Failed allocate fast-path FCP "
5136 "WQ (%d)\n", fcp_wqidx);
5137 goto out_free_fcp_wq;
5138 }
5139 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5140 }
5141
5142 /*
5143 * Create Receive Queue (RQ)
5144 */
5145 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5146 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5147
5148 /* Create Receive Queue for header */
5149 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5150 phba->sli4_hba.rq_ecount);
5151 if (!qdesc) {
5152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5153 "0506 Failed allocate receive HRQ\n");
5154 goto out_free_fcp_wq;
5155 }
5156 phba->sli4_hba.hdr_rq = qdesc;
5157
5158 /* Create Receive Queue for data */
5159 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5160 phba->sli4_hba.rq_ecount);
5161 if (!qdesc) {
5162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5163 "0507 Failed allocate receive DRQ\n");
5164 goto out_free_hdr_rq;
5165 }
5166 phba->sli4_hba.dat_rq = qdesc;
5167
5168 return 0;
5169
5170 out_free_hdr_rq:
5171 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5172 phba->sli4_hba.hdr_rq = NULL;
5173 out_free_fcp_wq:
5174 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5175 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5176 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5177 }
5178 kfree(phba->sli4_hba.fcp_wq);
5179 out_free_els_wq:
5180 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5181 phba->sli4_hba.els_wq = NULL;
5182 out_free_mbx_wq:
5183 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5184 phba->sli4_hba.mbx_wq = NULL;
5185 out_free_fcp_cq:
5186 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5187 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5188 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5189 }
5190 kfree(phba->sli4_hba.fcp_cq);
5191 out_free_rxq_cq:
5192 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
5193 phba->sli4_hba.rxq_cq = NULL;
5194 out_free_els_cq:
5195 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5196 phba->sli4_hba.els_cq = NULL;
5197 out_free_mbx_cq:
5198 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5199 phba->sli4_hba.mbx_cq = NULL;
5200 out_free_fp_eq:
5201 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5202 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5203 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5204 }
5205 kfree(phba->sli4_hba.fp_eq);
5206 out_free_sp_eq:
5207 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5208 phba->sli4_hba.sp_eq = NULL;
5209 out_error:
5210 return -ENOMEM;
5211 }
5212
5213 /**
5214 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5215 * @phba: pointer to lpfc hba data structure.
5216 *
5217 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5218 * operation.
5219 *
5220 * Return codes
5221 * 0 - sucessful
5222 * ENOMEM - No availble memory
5223 * EIO - The mailbox failed to complete successfully.
5224 **/
5225 static void
5226 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5227 {
5228 int fcp_qidx;
5229
5230 /* Release mailbox command work queue */
5231 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5232 phba->sli4_hba.mbx_wq = NULL;
5233
5234 /* Release ELS work queue */
5235 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5236 phba->sli4_hba.els_wq = NULL;
5237
5238 /* Release FCP work queue */
5239 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5240 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5241 kfree(phba->sli4_hba.fcp_wq);
5242 phba->sli4_hba.fcp_wq = NULL;
5243
5244 /* Release unsolicited receive queue */
5245 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5246 phba->sli4_hba.hdr_rq = NULL;
5247 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5248 phba->sli4_hba.dat_rq = NULL;
5249
5250 /* Release unsolicited receive complete queue */
5251 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
5252 phba->sli4_hba.rxq_cq = NULL;
5253
5254 /* Release ELS complete queue */
5255 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5256 phba->sli4_hba.els_cq = NULL;
5257
5258 /* Release mailbox command complete queue */
5259 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5260 phba->sli4_hba.mbx_cq = NULL;
5261
5262 /* Release FCP response complete queue */
5263 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5264 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5265 kfree(phba->sli4_hba.fcp_cq);
5266 phba->sli4_hba.fcp_cq = NULL;
5267
5268 /* Release fast-path event queue */
5269 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5270 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5271 kfree(phba->sli4_hba.fp_eq);
5272 phba->sli4_hba.fp_eq = NULL;
5273
5274 /* Release slow-path event queue */
5275 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5276 phba->sli4_hba.sp_eq = NULL;
5277
5278 return;
5279 }
5280
5281 /**
5282 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5283 * @phba: pointer to lpfc hba data structure.
5284 *
5285 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5286 * operation.
5287 *
5288 * Return codes
5289 * 0 - sucessful
5290 * ENOMEM - No availble memory
5291 * EIO - The mailbox failed to complete successfully.
5292 **/
5293 int
5294 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5295 {
5296 int rc = -ENOMEM;
5297 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5298 int fcp_cq_index = 0;
5299
5300 /*
5301 * Set up Event Queues (EQs)
5302 */
5303
5304 /* Set up slow-path event queue */
5305 if (!phba->sli4_hba.sp_eq) {
5306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5307 "0520 Slow-path EQ not allocated\n");
5308 goto out_error;
5309 }
5310 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5311 LPFC_SP_DEF_IMAX);
5312 if (rc) {
5313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5314 "0521 Failed setup of slow-path EQ: "
5315 "rc = 0x%x\n", rc);
5316 goto out_error;
5317 }
5318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5319 "2583 Slow-path EQ setup: queue-id=%d\n",
5320 phba->sli4_hba.sp_eq->queue_id);
5321
5322 /* Set up fast-path event queue */
5323 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5324 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5326 "0522 Fast-path EQ (%d) not "
5327 "allocated\n", fcp_eqidx);
5328 goto out_destroy_fp_eq;
5329 }
5330 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5331 phba->cfg_fcp_imax);
5332 if (rc) {
5333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5334 "0523 Failed setup of fast-path EQ "
5335 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5336 goto out_destroy_fp_eq;
5337 }
5338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5339 "2584 Fast-path EQ setup: "
5340 "queue[%d]-id=%d\n", fcp_eqidx,
5341 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5342 }
5343
5344 /*
5345 * Set up Complete Queues (CQs)
5346 */
5347
5348 /* Set up slow-path MBOX Complete Queue as the first CQ */
5349 if (!phba->sli4_hba.mbx_cq) {
5350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5351 "0528 Mailbox CQ not allocated\n");
5352 goto out_destroy_fp_eq;
5353 }
5354 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5355 LPFC_MCQ, LPFC_MBOX);
5356 if (rc) {
5357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5358 "0529 Failed setup of slow-path mailbox CQ: "
5359 "rc = 0x%x\n", rc);
5360 goto out_destroy_fp_eq;
5361 }
5362 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5363 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5364 phba->sli4_hba.mbx_cq->queue_id,
5365 phba->sli4_hba.sp_eq->queue_id);
5366
5367 /* Set up slow-path ELS Complete Queue */
5368 if (!phba->sli4_hba.els_cq) {
5369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5370 "0530 ELS CQ not allocated\n");
5371 goto out_destroy_mbx_cq;
5372 }
5373 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5374 LPFC_WCQ, LPFC_ELS);
5375 if (rc) {
5376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5377 "0531 Failed setup of slow-path ELS CQ: "
5378 "rc = 0x%x\n", rc);
5379 goto out_destroy_mbx_cq;
5380 }
5381 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5382 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5383 phba->sli4_hba.els_cq->queue_id,
5384 phba->sli4_hba.sp_eq->queue_id);
5385
5386 /* Set up slow-path Unsolicited Receive Complete Queue */
5387 if (!phba->sli4_hba.rxq_cq) {
5388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5389 "0532 USOL RX CQ not allocated\n");
5390 goto out_destroy_els_cq;
5391 }
5392 rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq,
5393 LPFC_RCQ, LPFC_USOL);
5394 if (rc) {
5395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5396 "0533 Failed setup of slow-path USOL RX CQ: "
5397 "rc = 0x%x\n", rc);
5398 goto out_destroy_els_cq;
5399 }
5400 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5401 "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n",
5402 phba->sli4_hba.rxq_cq->queue_id,
5403 phba->sli4_hba.sp_eq->queue_id);
5404
5405 /* Set up fast-path FCP Response Complete Queue */
5406 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5407 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
5408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5409 "0526 Fast-path FCP CQ (%d) not "
5410 "allocated\n", fcp_cqidx);
5411 goto out_destroy_fcp_cq;
5412 }
5413 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
5414 phba->sli4_hba.fp_eq[fcp_cqidx],
5415 LPFC_WCQ, LPFC_FCP);
5416 if (rc) {
5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5418 "0527 Failed setup of fast-path FCP "
5419 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
5420 goto out_destroy_fcp_cq;
5421 }
5422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5423 "2588 FCP CQ setup: cq[%d]-id=%d, "
5424 "parent eq[%d]-id=%d\n",
5425 fcp_cqidx,
5426 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
5427 fcp_cqidx,
5428 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
5429 }
5430
5431 /*
5432 * Set up all the Work Queues (WQs)
5433 */
5434
5435 /* Set up Mailbox Command Queue */
5436 if (!phba->sli4_hba.mbx_wq) {
5437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5438 "0538 Slow-path MQ not allocated\n");
5439 goto out_destroy_fcp_cq;
5440 }
5441 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
5442 phba->sli4_hba.mbx_cq, LPFC_MBOX);
5443 if (rc) {
5444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5445 "0539 Failed setup of slow-path MQ: "
5446 "rc = 0x%x\n", rc);
5447 goto out_destroy_fcp_cq;
5448 }
5449 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5450 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
5451 phba->sli4_hba.mbx_wq->queue_id,
5452 phba->sli4_hba.mbx_cq->queue_id);
5453
5454 /* Set up slow-path ELS Work Queue */
5455 if (!phba->sli4_hba.els_wq) {
5456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5457 "0536 Slow-path ELS WQ not allocated\n");
5458 goto out_destroy_mbx_wq;
5459 }
5460 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
5461 phba->sli4_hba.els_cq, LPFC_ELS);
5462 if (rc) {
5463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5464 "0537 Failed setup of slow-path ELS WQ: "
5465 "rc = 0x%x\n", rc);
5466 goto out_destroy_mbx_wq;
5467 }
5468 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5469 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
5470 phba->sli4_hba.els_wq->queue_id,
5471 phba->sli4_hba.els_cq->queue_id);
5472
5473 /* Set up fast-path FCP Work Queue */
5474 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5475 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
5476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5477 "0534 Fast-path FCP WQ (%d) not "
5478 "allocated\n", fcp_wqidx);
5479 goto out_destroy_fcp_wq;
5480 }
5481 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
5482 phba->sli4_hba.fcp_cq[fcp_cq_index],
5483 LPFC_FCP);
5484 if (rc) {
5485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5486 "0535 Failed setup of fast-path FCP "
5487 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
5488 goto out_destroy_fcp_wq;
5489 }
5490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5491 "2591 FCP WQ setup: wq[%d]-id=%d, "
5492 "parent cq[%d]-id=%d\n",
5493 fcp_wqidx,
5494 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
5495 fcp_cq_index,
5496 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
5497 /* Round robin FCP Work Queue's Completion Queue assignment */
5498 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
5499 }
5500
5501 /*
5502 * Create Receive Queue (RQ)
5503 */
5504 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
5505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5506 "0540 Receive Queue not allocated\n");
5507 goto out_destroy_fcp_wq;
5508 }
5509 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5510 phba->sli4_hba.rxq_cq, LPFC_USOL);
5511 if (rc) {
5512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5513 "0541 Failed setup of Receive Queue: "
5514 "rc = 0x%x\n", rc);
5515 goto out_destroy_fcp_wq;
5516 }
5517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5518 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
5519 "parent cq-id=%d\n",
5520 phba->sli4_hba.hdr_rq->queue_id,
5521 phba->sli4_hba.dat_rq->queue_id,
5522 phba->sli4_hba.rxq_cq->queue_id);
5523 return 0;
5524
5525 out_destroy_fcp_wq:
5526 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
5527 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
5528 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5529 out_destroy_mbx_wq:
5530 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5531 out_destroy_fcp_cq:
5532 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
5533 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
5534 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
5535 out_destroy_els_cq:
5536 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5537 out_destroy_mbx_cq:
5538 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5539 out_destroy_fp_eq:
5540 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
5541 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
5542 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5543 out_error:
5544 return rc;
5545 }
5546
5547 /**
5548 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
5549 * @phba: pointer to lpfc hba data structure.
5550 *
5551 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
5552 * operation.
5553 *
5554 * Return codes
5555 * 0 - sucessful
5556 * ENOMEM - No availble memory
5557 * EIO - The mailbox failed to complete successfully.
5558 **/
5559 void
5560 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
5561 {
5562 int fcp_qidx;
5563
5564 /* Unset mailbox command work queue */
5565 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5566 /* Unset ELS work queue */
5567 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5568 /* Unset unsolicited receive queue */
5569 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
5570 /* Unset FCP work queue */
5571 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5572 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
5573 /* Unset mailbox command complete queue */
5574 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5575 /* Unset ELS complete queue */
5576 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5577 /* Unset unsolicited receive complete queue */
5578 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
5579 /* Unset FCP response complete queue */
5580 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5581 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5582 /* Unset fast-path event queue */
5583 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5584 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
5585 /* Unset slow-path event queue */
5586 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5587 }
5588
5589 /**
5590 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
5591 * @phba: pointer to lpfc hba data structure.
5592 *
5593 * This routine is invoked to allocate and set up a pool of completion queue
5594 * events. The body of the completion queue event is a completion queue entry
5595 * CQE. For now, this pool is used for the interrupt service routine to queue
5596 * the following HBA completion queue events for the worker thread to process:
5597 * - Mailbox asynchronous events
5598 * - Receive queue completion unsolicited events
5599 * Later, this can be used for all the slow-path events.
5600 *
5601 * Return codes
5602 * 0 - sucessful
5603 * -ENOMEM - No availble memory
5604 **/
5605 static int
5606 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
5607 {
5608 struct lpfc_cq_event *cq_event;
5609 int i;
5610
5611 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
5612 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
5613 if (!cq_event)
5614 goto out_pool_create_fail;
5615 list_add_tail(&cq_event->list,
5616 &phba->sli4_hba.sp_cqe_event_pool);
5617 }
5618 return 0;
5619
5620 out_pool_create_fail:
5621 lpfc_sli4_cq_event_pool_destroy(phba);
5622 return -ENOMEM;
5623 }
5624
5625 /**
5626 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
5627 * @phba: pointer to lpfc hba data structure.
5628 *
5629 * This routine is invoked to free the pool of completion queue events at
5630 * driver unload time. Note that, it is the responsibility of the driver
5631 * cleanup routine to free all the outstanding completion-queue events
5632 * allocated from this pool back into the pool before invoking this routine
5633 * to destroy the pool.
5634 **/
5635 static void
5636 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
5637 {
5638 struct lpfc_cq_event *cq_event, *next_cq_event;
5639
5640 list_for_each_entry_safe(cq_event, next_cq_event,
5641 &phba->sli4_hba.sp_cqe_event_pool, list) {
5642 list_del(&cq_event->list);
5643 kfree(cq_event);
5644 }
5645 }
5646
5647 /**
5648 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5649 * @phba: pointer to lpfc hba data structure.
5650 *
5651 * This routine is the lock free version of the API invoked to allocate a
5652 * completion-queue event from the free pool.
5653 *
5654 * Return: Pointer to the newly allocated completion-queue event if successful
5655 * NULL otherwise.
5656 **/
5657 struct lpfc_cq_event *
5658 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5659 {
5660 struct lpfc_cq_event *cq_event = NULL;
5661
5662 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
5663 struct lpfc_cq_event, list);
5664 return cq_event;
5665 }
5666
5667 /**
5668 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5669 * @phba: pointer to lpfc hba data structure.
5670 *
5671 * This routine is the lock version of the API invoked to allocate a
5672 * completion-queue event from the free pool.
5673 *
5674 * Return: Pointer to the newly allocated completion-queue event if successful
5675 * NULL otherwise.
5676 **/
5677 struct lpfc_cq_event *
5678 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5679 {
5680 struct lpfc_cq_event *cq_event;
5681 unsigned long iflags;
5682
5683 spin_lock_irqsave(&phba->hbalock, iflags);
5684 cq_event = __lpfc_sli4_cq_event_alloc(phba);
5685 spin_unlock_irqrestore(&phba->hbalock, iflags);
5686 return cq_event;
5687 }
5688
5689 /**
5690 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5691 * @phba: pointer to lpfc hba data structure.
5692 * @cq_event: pointer to the completion queue event to be freed.
5693 *
5694 * This routine is the lock free version of the API invoked to release a
5695 * completion-queue event back into the free pool.
5696 **/
5697 void
5698 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5699 struct lpfc_cq_event *cq_event)
5700 {
5701 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
5702 }
5703
5704 /**
5705 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5706 * @phba: pointer to lpfc hba data structure.
5707 * @cq_event: pointer to the completion queue event to be freed.
5708 *
5709 * This routine is the lock version of the API invoked to release a
5710 * completion-queue event back into the free pool.
5711 **/
5712 void
5713 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5714 struct lpfc_cq_event *cq_event)
5715 {
5716 unsigned long iflags;
5717 spin_lock_irqsave(&phba->hbalock, iflags);
5718 __lpfc_sli4_cq_event_release(phba, cq_event);
5719 spin_unlock_irqrestore(&phba->hbalock, iflags);
5720 }
5721
5722 /**
5723 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
5724 * @phba: pointer to lpfc hba data structure.
5725 *
5726 * This routine is to free all the pending completion-queue events to the
5727 * back into the free pool for device reset.
5728 **/
5729 static void
5730 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
5731 {
5732 LIST_HEAD(cqelist);
5733 struct lpfc_cq_event *cqe;
5734 unsigned long iflags;
5735
5736 /* Retrieve all the pending WCQEs from pending WCQE lists */
5737 spin_lock_irqsave(&phba->hbalock, iflags);
5738 /* Pending FCP XRI abort events */
5739 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
5740 &cqelist);
5741 /* Pending ELS XRI abort events */
5742 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
5743 &cqelist);
5744 /* Pending asynnc events */
5745 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
5746 &cqelist);
5747 spin_unlock_irqrestore(&phba->hbalock, iflags);
5748
5749 while (!list_empty(&cqelist)) {
5750 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
5751 lpfc_sli4_cq_event_release(phba, cqe);
5752 }
5753 }
5754
5755 /**
5756 * lpfc_pci_function_reset - Reset pci function.
5757 * @phba: pointer to lpfc hba data structure.
5758 *
5759 * This routine is invoked to request a PCI function reset. It will destroys
5760 * all resources assigned to the PCI function which originates this request.
5761 *
5762 * Return codes
5763 * 0 - sucessful
5764 * ENOMEM - No availble memory
5765 * EIO - The mailbox failed to complete successfully.
5766 **/
5767 int
5768 lpfc_pci_function_reset(struct lpfc_hba *phba)
5769 {
5770 LPFC_MBOXQ_t *mboxq;
5771 uint32_t rc = 0;
5772 uint32_t shdr_status, shdr_add_status;
5773 union lpfc_sli4_cfg_shdr *shdr;
5774
5775 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5776 if (!mboxq) {
5777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5778 "0494 Unable to allocate memory for issuing "
5779 "SLI_FUNCTION_RESET mailbox command\n");
5780 return -ENOMEM;
5781 }
5782
5783 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
5784 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5785 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
5786 LPFC_SLI4_MBX_EMBED);
5787 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5788 shdr = (union lpfc_sli4_cfg_shdr *)
5789 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5790 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5791 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5792 if (rc != MBX_TIMEOUT)
5793 mempool_free(mboxq, phba->mbox_mem_pool);
5794 if (shdr_status || shdr_add_status || rc) {
5795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5796 "0495 SLI_FUNCTION_RESET mailbox failed with "
5797 "status x%x add_status x%x, mbx status x%x\n",
5798 shdr_status, shdr_add_status, rc);
5799 rc = -ENXIO;
5800 }
5801 return rc;
5802 }
5803
5804 /**
5805 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
5806 * @phba: pointer to lpfc hba data structure.
5807 * @cnt: number of nop mailbox commands to send.
5808 *
5809 * This routine is invoked to send a number @cnt of NOP mailbox command and
5810 * wait for each command to complete.
5811 *
5812 * Return: the number of NOP mailbox command completed.
5813 **/
5814 static int
5815 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
5816 {
5817 LPFC_MBOXQ_t *mboxq;
5818 int length, cmdsent;
5819 uint32_t mbox_tmo;
5820 uint32_t rc = 0;
5821 uint32_t shdr_status, shdr_add_status;
5822 union lpfc_sli4_cfg_shdr *shdr;
5823
5824 if (cnt == 0) {
5825 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5826 "2518 Requested to send 0 NOP mailbox cmd\n");
5827 return cnt;
5828 }
5829
5830 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5831 if (!mboxq) {
5832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5833 "2519 Unable to allocate memory for issuing "
5834 "NOP mailbox command\n");
5835 return 0;
5836 }
5837
5838 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
5839 length = (sizeof(struct lpfc_mbx_nop) -
5840 sizeof(struct lpfc_sli4_cfg_mhdr));
5841 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5842 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
5843
5844 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5845 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
5846 if (!phba->sli4_hba.intr_enable)
5847 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5848 else
5849 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
5850 if (rc == MBX_TIMEOUT)
5851 break;
5852 /* Check return status */
5853 shdr = (union lpfc_sli4_cfg_shdr *)
5854 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5855 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5856 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
5857 &shdr->response);
5858 if (shdr_status || shdr_add_status || rc) {
5859 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5860 "2520 NOP mailbox command failed "
5861 "status x%x add_status x%x mbx "
5862 "status x%x\n", shdr_status,
5863 shdr_add_status, rc);
5864 break;
5865 }
5866 }
5867
5868 if (rc != MBX_TIMEOUT)
5869 mempool_free(mboxq, phba->mbox_mem_pool);
5870
5871 return cmdsent;
5872 }
5873
5874 /**
5875 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
5876 * @phba: pointer to lpfc hba data structure.
5877 * @fcfi: fcf index.
5878 *
5879 * This routine is invoked to unregister a FCFI from device.
5880 **/
5881 void
5882 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
5883 {
5884 LPFC_MBOXQ_t *mbox;
5885 uint32_t mbox_tmo;
5886 int rc;
5887 unsigned long flags;
5888
5889 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5890
5891 if (!mbox)
5892 return;
5893
5894 lpfc_unreg_fcfi(mbox, fcfi);
5895
5896 if (!phba->sli4_hba.intr_enable)
5897 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5898 else {
5899 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5900 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5901 }
5902 if (rc != MBX_TIMEOUT)
5903 mempool_free(mbox, phba->mbox_mem_pool);
5904 if (rc != MBX_SUCCESS)
5905 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5906 "2517 Unregister FCFI command failed "
5907 "status %d, mbxStatus x%x\n", rc,
5908 bf_get(lpfc_mqe_status, &mbox->u.mqe));
5909 else {
5910 spin_lock_irqsave(&phba->hbalock, flags);
5911 /* Mark the FCFI is no longer registered */
5912 phba->fcf.fcf_flag &=
5913 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
5914 spin_unlock_irqrestore(&phba->hbalock, flags);
5915 }
5916 }
5917
5918 /**
5919 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
5920 * @phba: pointer to lpfc hba data structure.
5921 *
5922 * This routine is invoked to set up the PCI device memory space for device
5923 * with SLI-4 interface spec.
5924 *
5925 * Return codes
5926 * 0 - sucessful
5927 * other values - error
5928 **/
5929 static int
5930 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
5931 {
5932 struct pci_dev *pdev;
5933 unsigned long bar0map_len, bar1map_len, bar2map_len;
5934 int error = -ENODEV;
5935
5936 /* Obtain PCI device reference */
5937 if (!phba->pcidev)
5938 return error;
5939 else
5940 pdev = phba->pcidev;
5941
5942 /* Set the device DMA mask size */
5943 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
5944 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
5945 return error;
5946
5947 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
5948 * number of bytes required by each mapping. They are actually
5949 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
5950 */
5951 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
5952 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);
5953
5954 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
5955 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);
5956
5957 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
5958 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);
5959
5960 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
5961 phba->sli4_hba.conf_regs_memmap_p =
5962 ioremap(phba->pci_bar0_map, bar0map_len);
5963 if (!phba->sli4_hba.conf_regs_memmap_p) {
5964 dev_printk(KERN_ERR, &pdev->dev,
5965 "ioremap failed for SLI4 PCI config registers.\n");
5966 goto out;
5967 }
5968
5969 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
5970 phba->sli4_hba.ctrl_regs_memmap_p =
5971 ioremap(phba->pci_bar1_map, bar1map_len);
5972 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
5973 dev_printk(KERN_ERR, &pdev->dev,
5974 "ioremap failed for SLI4 HBA control registers.\n");
5975 goto out_iounmap_conf;
5976 }
5977
5978 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
5979 phba->sli4_hba.drbl_regs_memmap_p =
5980 ioremap(phba->pci_bar2_map, bar2map_len);
5981 if (!phba->sli4_hba.drbl_regs_memmap_p) {
5982 dev_printk(KERN_ERR, &pdev->dev,
5983 "ioremap failed for SLI4 HBA doorbell registers.\n");
5984 goto out_iounmap_ctrl;
5985 }
5986
5987 /* Set up BAR0 PCI config space register memory map */
5988 lpfc_sli4_bar0_register_memmap(phba);
5989
5990 /* Set up BAR1 register memory map */
5991 lpfc_sli4_bar1_register_memmap(phba);
5992
5993 /* Set up BAR2 register memory map */
5994 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
5995 if (error)
5996 goto out_iounmap_all;
5997
5998 return 0;
5999
6000 out_iounmap_all:
6001 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6002 out_iounmap_ctrl:
6003 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6004 out_iounmap_conf:
6005 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6006 out:
6007 return error;
6008 }
6009
6010 /**
6011 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6012 * @phba: pointer to lpfc hba data structure.
6013 *
6014 * This routine is invoked to unset the PCI device memory space for device
6015 * with SLI-4 interface spec.
6016 **/
6017 static void
6018 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6019 {
6020 struct pci_dev *pdev;
6021
6022 /* Obtain PCI device reference */
6023 if (!phba->pcidev)
6024 return;
6025 else
6026 pdev = phba->pcidev;
6027
6028 /* Free coherent DMA memory allocated */
6029
6030 /* Unmap I/O memory space */
6031 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6032 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6033 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6034
6035 return;
6036 }
6037
6038 /**
6039 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6040 * @phba: pointer to lpfc hba data structure.
6041 *
6042 * This routine is invoked to enable the MSI-X interrupt vectors to device
6043 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6044 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6045 * invoked, enables either all or nothing, depending on the current
6046 * availability of PCI vector resources. The device driver is responsible
6047 * for calling the individual request_irq() to register each MSI-X vector
6048 * with a interrupt handler, which is done in this function. Note that
6049 * later when device is unloading, the driver should always call free_irq()
6050 * on all MSI-X vectors it has done request_irq() on before calling
6051 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6052 * will be left with MSI-X enabled and leaks its vectors.
6053 *
6054 * Return codes
6055 * 0 - sucessful
6056 * other values - error
6057 **/
6058 static int
6059 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6060 {
6061 int rc, i;
6062 LPFC_MBOXQ_t *pmb;
6063
6064 /* Set up MSI-X multi-message vectors */
6065 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6066 phba->msix_entries[i].entry = i;
6067
6068 /* Configure MSI-X capability structure */
6069 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6070 ARRAY_SIZE(phba->msix_entries));
6071 if (rc) {
6072 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6073 "0420 PCI enable MSI-X failed (%d)\n", rc);
6074 goto msi_fail_out;
6075 }
6076 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6077 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6078 "0477 MSI-X entry[%d]: vector=x%x "
6079 "message=%d\n", i,
6080 phba->msix_entries[i].vector,
6081 phba->msix_entries[i].entry);
6082 /*
6083 * Assign MSI-X vectors to interrupt handlers
6084 */
6085
6086 /* vector-0 is associated to slow-path handler */
6087 rc = request_irq(phba->msix_entries[0].vector,
6088 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6089 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6090 if (rc) {
6091 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6092 "0421 MSI-X slow-path request_irq failed "
6093 "(%d)\n", rc);
6094 goto msi_fail_out;
6095 }
6096
6097 /* vector-1 is associated to fast-path handler */
6098 rc = request_irq(phba->msix_entries[1].vector,
6099 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6100 LPFC_FP_DRIVER_HANDLER_NAME, phba);
6101
6102 if (rc) {
6103 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6104 "0429 MSI-X fast-path request_irq failed "
6105 "(%d)\n", rc);
6106 goto irq_fail_out;
6107 }
6108
6109 /*
6110 * Configure HBA MSI-X attention conditions to messages
6111 */
6112 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6113
6114 if (!pmb) {
6115 rc = -ENOMEM;
6116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6117 "0474 Unable to allocate memory for issuing "
6118 "MBOX_CONFIG_MSI command\n");
6119 goto mem_fail_out;
6120 }
6121 rc = lpfc_config_msi(phba, pmb);
6122 if (rc)
6123 goto mbx_fail_out;
6124 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6125 if (rc != MBX_SUCCESS) {
6126 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6127 "0351 Config MSI mailbox command failed, "
6128 "mbxCmd x%x, mbxStatus x%x\n",
6129 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6130 goto mbx_fail_out;
6131 }
6132
6133 /* Free memory allocated for mailbox command */
6134 mempool_free(pmb, phba->mbox_mem_pool);
6135 return rc;
6136
6137 mbx_fail_out:
6138 /* Free memory allocated for mailbox command */
6139 mempool_free(pmb, phba->mbox_mem_pool);
6140
6141 mem_fail_out:
6142 /* free the irq already requested */
6143 free_irq(phba->msix_entries[1].vector, phba);
6144
6145 irq_fail_out:
6146 /* free the irq already requested */
6147 free_irq(phba->msix_entries[0].vector, phba);
6148
6149 msi_fail_out:
6150 /* Unconfigure MSI-X capability structure */
6151 pci_disable_msix(phba->pcidev);
6152 return rc;
6153 }
6154
6155 /**
6156 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6157 * @phba: pointer to lpfc hba data structure.
6158 *
6159 * This routine is invoked to release the MSI-X vectors and then disable the
6160 * MSI-X interrupt mode to device with SLI-3 interface spec.
6161 **/
6162 static void
6163 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6164 {
6165 int i;
6166
6167 /* Free up MSI-X multi-message vectors */
6168 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6169 free_irq(phba->msix_entries[i].vector, phba);
6170 /* Disable MSI-X */
6171 pci_disable_msix(phba->pcidev);
6172
6173 return;
6174 }
6175
6176 /**
6177 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6178 * @phba: pointer to lpfc hba data structure.
6179 *
6180 * This routine is invoked to enable the MSI interrupt mode to device with
6181 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6182 * enable the MSI vector. The device driver is responsible for calling the
6183 * request_irq() to register MSI vector with a interrupt the handler, which
6184 * is done in this function.
6185 *
6186 * Return codes
6187 * 0 - sucessful
6188 * other values - error
6189 */
6190 static int
6191 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6192 {
6193 int rc;
6194
6195 rc = pci_enable_msi(phba->pcidev);
6196 if (!rc)
6197 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6198 "0462 PCI enable MSI mode success.\n");
6199 else {
6200 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6201 "0471 PCI enable MSI mode failed (%d)\n", rc);
6202 return rc;
6203 }
6204
6205 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6206 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6207 if (rc) {
6208 pci_disable_msi(phba->pcidev);
6209 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6210 "0478 MSI request_irq failed (%d)\n", rc);
6211 }
6212 return rc;
6213 }
6214
6215 /**
6216 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6217 * @phba: pointer to lpfc hba data structure.
6218 *
6219 * This routine is invoked to disable the MSI interrupt mode to device with
6220 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6221 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6222 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6223 * its vector.
6224 */
6225 static void
6226 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6227 {
6228 free_irq(phba->pcidev->irq, phba);
6229 pci_disable_msi(phba->pcidev);
6230 return;
6231 }
6232
6233 /**
6234 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6235 * @phba: pointer to lpfc hba data structure.
6236 *
6237 * This routine is invoked to enable device interrupt and associate driver's
6238 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6239 * spec. Depends on the interrupt mode configured to the driver, the driver
6240 * will try to fallback from the configured interrupt mode to an interrupt
6241 * mode which is supported by the platform, kernel, and device in the order
6242 * of:
6243 * MSI-X -> MSI -> IRQ.
6244 *
6245 * Return codes
6246 * 0 - sucessful
6247 * other values - error
6248 **/
6249 static uint32_t
6250 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6251 {
6252 uint32_t intr_mode = LPFC_INTR_ERROR;
6253 int retval;
6254
6255 if (cfg_mode == 2) {
6256 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6257 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6258 if (!retval) {
6259 /* Now, try to enable MSI-X interrupt mode */
6260 retval = lpfc_sli_enable_msix(phba);
6261 if (!retval) {
6262 /* Indicate initialization to MSI-X mode */
6263 phba->intr_type = MSIX;
6264 intr_mode = 2;
6265 }
6266 }
6267 }
6268
6269 /* Fallback to MSI if MSI-X initialization failed */
6270 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6271 retval = lpfc_sli_enable_msi(phba);
6272 if (!retval) {
6273 /* Indicate initialization to MSI mode */
6274 phba->intr_type = MSI;
6275 intr_mode = 1;
6276 }
6277 }
6278
6279 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6280 if (phba->intr_type == NONE) {
6281 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6282 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6283 if (!retval) {
6284 /* Indicate initialization to INTx mode */
6285 phba->intr_type = INTx;
6286 intr_mode = 0;
6287 }
6288 }
6289 return intr_mode;
6290 }
6291
6292 /**
6293 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6294 * @phba: pointer to lpfc hba data structure.
6295 *
6296 * This routine is invoked to disable device interrupt and disassociate the
6297 * driver's interrupt handler(s) from interrupt vector(s) to device with
6298 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6299 * release the interrupt vector(s) for the message signaled interrupt.
6300 **/
6301 static void
6302 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6303 {
6304 /* Disable the currently initialized interrupt mode */
6305 if (phba->intr_type == MSIX)
6306 lpfc_sli_disable_msix(phba);
6307 else if (phba->intr_type == MSI)
6308 lpfc_sli_disable_msi(phba);
6309 else if (phba->intr_type == INTx)
6310 free_irq(phba->pcidev->irq, phba);
6311
6312 /* Reset interrupt management states */
6313 phba->intr_type = NONE;
6314 phba->sli.slistat.sli_intr = 0;
6315
6316 return;
6317 }
6318
6319 /**
6320 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6321 * @phba: pointer to lpfc hba data structure.
6322 *
6323 * This routine is invoked to enable the MSI-X interrupt vectors to device
6324 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6325 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6326 * enables either all or nothing, depending on the current availability of
6327 * PCI vector resources. The device driver is responsible for calling the
6328 * individual request_irq() to register each MSI-X vector with a interrupt
6329 * handler, which is done in this function. Note that later when device is
6330 * unloading, the driver should always call free_irq() on all MSI-X vectors
6331 * it has done request_irq() on before calling pci_disable_msix(). Failure
6332 * to do so results in a BUG_ON() and a device will be left with MSI-X
6333 * enabled and leaks its vectors.
6334 *
6335 * Return codes
6336 * 0 - sucessful
6337 * other values - error
6338 **/
6339 static int
6340 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6341 {
6342 int rc, index;
6343
6344 /* Set up MSI-X multi-message vectors */
6345 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6346 phba->sli4_hba.msix_entries[index].entry = index;
6347
6348 /* Configure MSI-X capability structure */
6349 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6350 phba->sli4_hba.cfg_eqn);
6351 if (rc) {
6352 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6353 "0484 PCI enable MSI-X failed (%d)\n", rc);
6354 goto msi_fail_out;
6355 }
6356 /* Log MSI-X vector assignment */
6357 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6358 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6359 "0489 MSI-X entry[%d]: vector=x%x "
6360 "message=%d\n", index,
6361 phba->sli4_hba.msix_entries[index].vector,
6362 phba->sli4_hba.msix_entries[index].entry);
6363 /*
6364 * Assign MSI-X vectors to interrupt handlers
6365 */
6366
6367 /* The first vector must associated to slow-path handler for MQ */
6368 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6369 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6370 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6371 if (rc) {
6372 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6373 "0485 MSI-X slow-path request_irq failed "
6374 "(%d)\n", rc);
6375 goto msi_fail_out;
6376 }
6377
6378 /* The rest of the vector(s) are associated to fast-path handler(s) */
6379 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6380 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6381 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6382 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6383 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6384 LPFC_FP_DRIVER_HANDLER_NAME,
6385 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6386 if (rc) {
6387 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6388 "0486 MSI-X fast-path (%d) "
6389 "request_irq failed (%d)\n", index, rc);
6390 goto cfg_fail_out;
6391 }
6392 }
6393
6394 return rc;
6395
6396 cfg_fail_out:
6397 /* free the irq already requested */
6398 for (--index; index >= 1; index--)
6399 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
6400 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6401
6402 /* free the irq already requested */
6403 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6404
6405 msi_fail_out:
6406 /* Unconfigure MSI-X capability structure */
6407 pci_disable_msix(phba->pcidev);
6408 return rc;
6409 }
6410
6411 /**
6412 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
6413 * @phba: pointer to lpfc hba data structure.
6414 *
6415 * This routine is invoked to release the MSI-X vectors and then disable the
6416 * MSI-X interrupt mode to device with SLI-4 interface spec.
6417 **/
6418 static void
6419 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
6420 {
6421 int index;
6422
6423 /* Free up MSI-X multi-message vectors */
6424 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6425
6426 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
6427 free_irq(phba->sli4_hba.msix_entries[index].vector,
6428 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6429 /* Disable MSI-X */
6430 pci_disable_msix(phba->pcidev);
6431
6432 return;
6433 }
6434
6435 /**
6436 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
6437 * @phba: pointer to lpfc hba data structure.
6438 *
6439 * This routine is invoked to enable the MSI interrupt mode to device with
6440 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
6441 * to enable the MSI vector. The device driver is responsible for calling
6442 * the request_irq() to register MSI vector with a interrupt the handler,
6443 * which is done in this function.
6444 *
6445 * Return codes
6446 * 0 - sucessful
6447 * other values - error
6448 **/
6449 static int
6450 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
6451 {
6452 int rc, index;
6453
6454 rc = pci_enable_msi(phba->pcidev);
6455 if (!rc)
6456 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6457 "0487 PCI enable MSI mode success.\n");
6458 else {
6459 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6460 "0488 PCI enable MSI mode failed (%d)\n", rc);
6461 return rc;
6462 }
6463
6464 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6465 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6466 if (rc) {
6467 pci_disable_msi(phba->pcidev);
6468 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6469 "0490 MSI request_irq failed (%d)\n", rc);
6470 }
6471
6472 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
6473 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6474 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6475 }
6476
6477 return rc;
6478 }
6479
6480 /**
6481 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
6482 * @phba: pointer to lpfc hba data structure.
6483 *
6484 * This routine is invoked to disable the MSI interrupt mode to device with
6485 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
6486 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6487 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6488 * its vector.
6489 **/
6490 static void
6491 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
6492 {
6493 free_irq(phba->pcidev->irq, phba);
6494 pci_disable_msi(phba->pcidev);
6495 return;
6496 }
6497
6498 /**
6499 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
6500 * @phba: pointer to lpfc hba data structure.
6501 *
6502 * This routine is invoked to enable device interrupt and associate driver's
6503 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
6504 * interface spec. Depends on the interrupt mode configured to the driver,
6505 * the driver will try to fallback from the configured interrupt mode to an
6506 * interrupt mode which is supported by the platform, kernel, and device in
6507 * the order of:
6508 * MSI-X -> MSI -> IRQ.
6509 *
6510 * Return codes
6511 * 0 - sucessful
6512 * other values - error
6513 **/
6514 static uint32_t
6515 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6516 {
6517 uint32_t intr_mode = LPFC_INTR_ERROR;
6518 int retval, index;
6519
6520 if (cfg_mode == 2) {
6521 /* Preparation before conf_msi mbox cmd */
6522 retval = 0;
6523 if (!retval) {
6524 /* Now, try to enable MSI-X interrupt mode */
6525 retval = lpfc_sli4_enable_msix(phba);
6526 if (!retval) {
6527 /* Indicate initialization to MSI-X mode */
6528 phba->intr_type = MSIX;
6529 intr_mode = 2;
6530 }
6531 }
6532 }
6533
6534 /* Fallback to MSI if MSI-X initialization failed */
6535 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6536 retval = lpfc_sli4_enable_msi(phba);
6537 if (!retval) {
6538 /* Indicate initialization to MSI mode */
6539 phba->intr_type = MSI;
6540 intr_mode = 1;
6541 }
6542 }
6543
6544 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6545 if (phba->intr_type == NONE) {
6546 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6547 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6548 if (!retval) {
6549 /* Indicate initialization to INTx mode */
6550 phba->intr_type = INTx;
6551 intr_mode = 0;
6552 for (index = 0; index < phba->cfg_fcp_eq_count;
6553 index++) {
6554 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6555 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6556 }
6557 }
6558 }
6559 return intr_mode;
6560 }
6561
6562 /**
6563 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
6564 * @phba: pointer to lpfc hba data structure.
6565 *
6566 * This routine is invoked to disable device interrupt and disassociate
6567 * the driver's interrupt handler(s) from interrupt vector(s) to device
6568 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
6569 * will release the interrupt vector(s) for the message signaled interrupt.
6570 **/
6571 static void
6572 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
6573 {
6574 /* Disable the currently initialized interrupt mode */
6575 if (phba->intr_type == MSIX)
6576 lpfc_sli4_disable_msix(phba);
6577 else if (phba->intr_type == MSI)
6578 lpfc_sli4_disable_msi(phba);
6579 else if (phba->intr_type == INTx)
6580 free_irq(phba->pcidev->irq, phba);
6581
6582 /* Reset interrupt management states */
6583 phba->intr_type = NONE;
6584 phba->sli.slistat.sli_intr = 0;
6585
6586 return;
6587 }
6588
6589 /**
6590 * lpfc_unset_hba - Unset SLI3 hba device initialization
6591 * @phba: pointer to lpfc hba data structure.
6592 *
6593 * This routine is invoked to unset the HBA device initialization steps to
6594 * a device with SLI-3 interface spec.
6595 **/
6596 static void
6597 lpfc_unset_hba(struct lpfc_hba *phba)
6598 {
6599 struct lpfc_vport *vport = phba->pport;
6600 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6601
6602 spin_lock_irq(shost->host_lock);
6603 vport->load_flag |= FC_UNLOADING;
6604 spin_unlock_irq(shost->host_lock);
6605
6606 lpfc_stop_hba_timers(phba);
6607
6608 phba->pport->work_port_events = 0;
6609
6610 lpfc_sli_hba_down(phba);
6611
6612 lpfc_sli_brdrestart(phba);
6613
6614 lpfc_sli_disable_intr(phba);
6615
6616 return;
6617 }
6618
6619 /**
6620 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
6621 * @phba: pointer to lpfc hba data structure.
6622 *
6623 * This routine is invoked to unset the HBA device initialization steps to
6624 * a device with SLI-4 interface spec.
6625 **/
6626 static void
6627 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
6628 {
6629 struct lpfc_vport *vport = phba->pport;
6630 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6631
6632 spin_lock_irq(shost->host_lock);
6633 vport->load_flag |= FC_UNLOADING;
6634 spin_unlock_irq(shost->host_lock);
6635
6636 phba->pport->work_port_events = 0;
6637
6638 lpfc_sli4_hba_down(phba);
6639
6640 lpfc_sli4_disable_intr(phba);
6641
6642 return;
6643 }
6644
6645 /**
6646 * lpfc_sli4_hba_unset - Unset the fcoe hba
6647 * @phba: Pointer to HBA context object.
6648 *
6649 * This function is called in the SLI4 code path to reset the HBA's FCoE
6650 * function. The caller is not required to hold any lock. This routine
6651 * issues PCI function reset mailbox command to reset the FCoE function.
6652 * At the end of the function, it calls lpfc_hba_down_post function to
6653 * free any pending commands.
6654 **/
6655 static void
6656 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
6657 {
6658 int wait_cnt = 0;
6659 LPFC_MBOXQ_t *mboxq;
6660
6661 lpfc_stop_hba_timers(phba);
6662 phba->sli4_hba.intr_enable = 0;
6663
6664 /*
6665 * Gracefully wait out the potential current outstanding asynchronous
6666 * mailbox command.
6667 */
6668
6669 /* First, block any pending async mailbox command from posted */
6670 spin_lock_irq(&phba->hbalock);
6671 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6672 spin_unlock_irq(&phba->hbalock);
6673 /* Now, trying to wait it out if we can */
6674 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6675 msleep(10);
6676 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
6677 break;
6678 }
6679 /* Forcefully release the outstanding mailbox command if timed out */
6680 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6681 spin_lock_irq(&phba->hbalock);
6682 mboxq = phba->sli.mbox_active;
6683 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
6684 __lpfc_mbox_cmpl_put(phba, mboxq);
6685 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6686 phba->sli.mbox_active = NULL;
6687 spin_unlock_irq(&phba->hbalock);
6688 }
6689
6690 /* Tear down the queues in the HBA */
6691 lpfc_sli4_queue_unset(phba);
6692
6693 /* Disable PCI subsystem interrupt */
6694 lpfc_sli4_disable_intr(phba);
6695
6696 /* Stop kthread signal shall trigger work_done one more time */
6697 kthread_stop(phba->worker_thread);
6698
6699 /* Stop the SLI4 device port */
6700 phba->pport->work_port_events = 0;
6701 }
6702
6703 /**
6704 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
6705 * @pdev: pointer to PCI device
6706 * @pid: pointer to PCI device identifier
6707 *
6708 * This routine is to be called to attach a device with SLI-3 interface spec
6709 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6710 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
6711 * information of the device and driver to see if the driver state that it can
6712 * support this kind of device. If the match is successful, the driver core
6713 * invokes this routine. If this routine determines it can claim the HBA, it
6714 * does all the initialization that it needs to do to handle the HBA properly.
6715 *
6716 * Return code
6717 * 0 - driver can claim the device
6718 * negative value - driver can not claim the device
6719 **/
6720 static int __devinit
6721 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
6722 {
6723 struct lpfc_hba *phba;
6724 struct lpfc_vport *vport = NULL;
6725 int error;
6726 uint32_t cfg_mode, intr_mode;
6727
6728 /* Allocate memory for HBA structure */
6729 phba = lpfc_hba_alloc(pdev);
6730 if (!phba)
6731 return -ENOMEM;
6732
6733 /* Perform generic PCI device enabling operation */
6734 error = lpfc_enable_pci_dev(phba);
6735 if (error) {
6736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6737 "1401 Failed to enable pci device.\n");
6738 goto out_free_phba;
6739 }
6740
6741 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
6742 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
6743 if (error)
6744 goto out_disable_pci_dev;
6745
6746 /* Set up SLI-3 specific device PCI memory space */
6747 error = lpfc_sli_pci_mem_setup(phba);
6748 if (error) {
6749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6750 "1402 Failed to set up pci memory space.\n");
6751 goto out_disable_pci_dev;
6752 }
6753
6754 /* Set up phase-1 common device driver resources */
6755 error = lpfc_setup_driver_resource_phase1(phba);
6756 if (error) {
6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6758 "1403 Failed to set up driver resource.\n");
6759 goto out_unset_pci_mem_s3;
6760 }
6761
6762 /* Set up SLI-3 specific device driver resources */
6763 error = lpfc_sli_driver_resource_setup(phba);
6764 if (error) {
6765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6766 "1404 Failed to set up driver resource.\n");
6767 goto out_unset_pci_mem_s3;
6768 }
6769
6770 /* Initialize and populate the iocb list per host */
6771 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
6772 if (error) {
6773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6774 "1405 Failed to initialize iocb list.\n");
6775 goto out_unset_driver_resource_s3;
6776 }
6777
6778 /* Set up common device driver resources */
6779 error = lpfc_setup_driver_resource_phase2(phba);
6780 if (error) {
6781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6782 "1406 Failed to set up driver resource.\n");
6783 goto out_free_iocb_list;
6784 }
6785
6786 /* Create SCSI host to the physical port */
6787 error = lpfc_create_shost(phba);
6788 if (error) {
6789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6790 "1407 Failed to create scsi host.\n");
6791 goto out_unset_driver_resource;
6792 }
6793
6794 /* Configure sysfs attributes */
6795 vport = phba->pport;
6796 error = lpfc_alloc_sysfs_attr(vport);
6797 if (error) {
6798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6799 "1476 Failed to allocate sysfs attr\n");
6800 goto out_destroy_shost;
6801 }
6802
6803 /* Now, trying to enable interrupt and bring up the device */
6804 cfg_mode = phba->cfg_use_msi;
6805 while (true) {
6806 /* Put device to a known state before enabling interrupt */
6807 lpfc_stop_port(phba);
6808 /* Configure and enable interrupt */
6809 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
6810 if (intr_mode == LPFC_INTR_ERROR) {
6811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6812 "0431 Failed to enable interrupt.\n");
6813 error = -ENODEV;
6814 goto out_free_sysfs_attr;
6815 }
6816 /* SLI-3 HBA setup */
6817 if (lpfc_sli_hba_setup(phba)) {
6818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6819 "1477 Failed to set up hba\n");
6820 error = -ENODEV;
6821 goto out_remove_device;
6822 }
6823
6824 /* Wait 50ms for the interrupts of previous mailbox commands */
6825 msleep(50);
6826 /* Check active interrupts on message signaled interrupts */
6827 if (intr_mode == 0 ||
6828 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
6829 /* Log the current active interrupt mode */
6830 phba->intr_mode = intr_mode;
6831 lpfc_log_intr_mode(phba, intr_mode);
6832 break;
6833 } else {
6834 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6835 "0447 Configure interrupt mode (%d) "
6836 "failed active interrupt test.\n",
6837 intr_mode);
6838 /* Disable the current interrupt mode */
6839 lpfc_sli_disable_intr(phba);
6840 /* Try next level of interrupt mode */
6841 cfg_mode = --intr_mode;
6842 }
6843 }
6844
6845 /* Perform post initialization setup */
6846 lpfc_post_init_setup(phba);
6847
6848 /* Check if there are static vports to be created. */
6849 lpfc_create_static_vport(phba);
6850
6851 return 0;
6852
6853 out_remove_device:
6854 lpfc_unset_hba(phba);
6855 out_free_sysfs_attr:
6856 lpfc_free_sysfs_attr(vport);
6857 out_destroy_shost:
6858 lpfc_destroy_shost(phba);
6859 out_unset_driver_resource:
6860 lpfc_unset_driver_resource_phase2(phba);
6861 out_free_iocb_list:
6862 lpfc_free_iocb_list(phba);
6863 out_unset_driver_resource_s3:
6864 lpfc_sli_driver_resource_unset(phba);
6865 out_unset_pci_mem_s3:
6866 lpfc_sli_pci_mem_unset(phba);
6867 out_disable_pci_dev:
6868 lpfc_disable_pci_dev(phba);
6869 out_free_phba:
6870 lpfc_hba_free(phba);
6871 return error;
6872 }
6873
6874 /**
6875 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
6876 * @pdev: pointer to PCI device
6877 *
6878 * This routine is to be called to disattach a device with SLI-3 interface
6879 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6880 * removed from PCI bus, it performs all the necessary cleanup for the HBA
6881 * device to be removed from the PCI subsystem properly.
6882 **/
6883 static void __devexit
6884 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
6885 {
6886 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6887 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6888 struct lpfc_vport **vports;
6889 struct lpfc_hba *phba = vport->phba;
6890 int i;
6891 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
6892
6893 spin_lock_irq(&phba->hbalock);
6894 vport->load_flag |= FC_UNLOADING;
6895 spin_unlock_irq(&phba->hbalock);
6896
6897 lpfc_free_sysfs_attr(vport);
6898
6899 /* Release all the vports against this physical port */
6900 vports = lpfc_create_vport_work_array(phba);
6901 if (vports != NULL)
6902 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
6903 fc_vport_terminate(vports[i]->fc_vport);
6904 lpfc_destroy_vport_work_array(phba, vports);
6905
6906 /* Remove FC host and then SCSI host with the physical port */
6907 fc_remove_host(shost);
6908 scsi_remove_host(shost);
6909 lpfc_cleanup(vport);
6910
6911 /*
6912 * Bring down the SLI Layer. This step disable all interrupts,
6913 * clears the rings, discards all mailbox commands, and resets
6914 * the HBA.
6915 */
6916
6917 /* HBA interrupt will be diabled after this call */
6918 lpfc_sli_hba_down(phba);
6919 /* Stop kthread signal shall trigger work_done one more time */
6920 kthread_stop(phba->worker_thread);
6921 /* Final cleanup of txcmplq and reset the HBA */
6922 lpfc_sli_brdrestart(phba);
6923
6924 lpfc_stop_hba_timers(phba);
6925 spin_lock_irq(&phba->hbalock);
6926 list_del_init(&vport->listentry);
6927 spin_unlock_irq(&phba->hbalock);
6928
6929 lpfc_debugfs_terminate(vport);
6930
6931 /* Disable interrupt */
6932 lpfc_sli_disable_intr(phba);
6933
6934 pci_set_drvdata(pdev, NULL);
6935 scsi_host_put(shost);
6936
6937 /*
6938 * Call scsi_free before mem_free since scsi bufs are released to their
6939 * corresponding pools here.
6940 */
6941 lpfc_scsi_free(phba);
6942 lpfc_mem_free_all(phba);
6943
6944 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6945 phba->hbqslimp.virt, phba->hbqslimp.phys);
6946
6947 /* Free resources associated with SLI2 interface */
6948 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6949 phba->slim2p.virt, phba->slim2p.phys);
6950
6951 /* unmap adapter SLIM and Control Registers */
6952 iounmap(phba->ctrl_regs_memmap_p);
6953 iounmap(phba->slim_memmap_p);
6954
6955 lpfc_hba_free(phba);
6956
6957 pci_release_selected_regions(pdev, bars);
6958 pci_disable_device(pdev);
6959 }
6960
6961 /**
6962 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
6963 * @pdev: pointer to PCI device
6964 * @msg: power management message
6965 *
6966 * This routine is to be called from the kernel's PCI subsystem to support
6967 * system Power Management (PM) to device with SLI-3 interface spec. When
6968 * PM invokes this method, it quiesces the device by stopping the driver's
6969 * worker thread for the device, turning off device's interrupt and DMA,
6970 * and bring the device offline. Note that as the driver implements the
6971 * minimum PM requirements to a power-aware driver's PM support for the
6972 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
6973 * to the suspend() method call will be treated as SUSPEND and the driver will
6974 * fully reinitialize its device during resume() method call, the driver will
6975 * set device to PCI_D3hot state in PCI config space instead of setting it
6976 * according to the @msg provided by the PM.
6977 *
6978 * Return code
6979 * 0 - driver suspended the device
6980 * Error otherwise
6981 **/
6982 static int
6983 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
6984 {
6985 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6986 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
6987
6988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6989 "0473 PCI device Power Management suspend.\n");
6990
6991 /* Bring down the device */
6992 lpfc_offline_prep(phba);
6993 lpfc_offline(phba);
6994 kthread_stop(phba->worker_thread);
6995
6996 /* Disable interrupt from device */
6997 lpfc_sli_disable_intr(phba);
6998
6999 /* Save device state to PCI config space */
7000 pci_save_state(pdev);
7001 pci_set_power_state(pdev, PCI_D3hot);
7002
7003 return 0;
7004 }
7005
7006 /**
7007 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7008 * @pdev: pointer to PCI device
7009 *
7010 * This routine is to be called from the kernel's PCI subsystem to support
7011 * system Power Management (PM) to device with SLI-3 interface spec. When PM
7012 * invokes this method, it restores the device's PCI config space state and
7013 * fully reinitializes the device and brings it online. Note that as the
7014 * driver implements the minimum PM requirements to a power-aware driver's
7015 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7016 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7017 * driver will fully reinitialize its device during resume() method call,
7018 * the device will be set to PCI_D0 directly in PCI config space before
7019 * restoring the state.
7020 *
7021 * Return code
7022 * 0 - driver suspended the device
7023 * Error otherwise
7024 **/
7025 static int
7026 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7027 {
7028 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7029 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7030 uint32_t intr_mode;
7031 int error;
7032
7033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7034 "0452 PCI device Power Management resume.\n");
7035
7036 /* Restore device state from PCI config space */
7037 pci_set_power_state(pdev, PCI_D0);
7038 pci_restore_state(pdev);
7039 if (pdev->is_busmaster)
7040 pci_set_master(pdev);
7041
7042 /* Startup the kernel thread for this host adapter. */
7043 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7044 "lpfc_worker_%d", phba->brd_no);
7045 if (IS_ERR(phba->worker_thread)) {
7046 error = PTR_ERR(phba->worker_thread);
7047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7048 "0434 PM resume failed to start worker "
7049 "thread: error=x%x.\n", error);
7050 return error;
7051 }
7052
7053 /* Configure and enable interrupt */
7054 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7055 if (intr_mode == LPFC_INTR_ERROR) {
7056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7057 "0430 PM resume Failed to enable interrupt\n");
7058 return -EIO;
7059 } else
7060 phba->intr_mode = intr_mode;
7061
7062 /* Restart HBA and bring it online */
7063 lpfc_sli_brdrestart(phba);
7064 lpfc_online(phba);
7065
7066 /* Log the current active interrupt mode */
7067 lpfc_log_intr_mode(phba, phba->intr_mode);
7068
7069 return 0;
7070 }
7071
7072 /**
7073 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7074 * @pdev: pointer to PCI device.
7075 * @state: the current PCI connection state.
7076 *
7077 * This routine is called from the PCI subsystem for I/O error handling to
7078 * device with SLI-3 interface spec. This function is called by the PCI
7079 * subsystem after a PCI bus error affecting this device has been detected.
7080 * When this function is invoked, it will need to stop all the I/Os and
7081 * interrupt(s) to the device. Once that is done, it will return
7082 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7083 * as desired.
7084 *
7085 * Return codes
7086 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7087 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7088 **/
7089 static pci_ers_result_t
7090 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7091 {
7092 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7093 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7094 struct lpfc_sli *psli = &phba->sli;
7095 struct lpfc_sli_ring *pring;
7096
7097 if (state == pci_channel_io_perm_failure) {
7098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7099 "0472 PCI channel I/O permanent failure\n");
7100 /* Block all SCSI devices' I/Os on the host */
7101 lpfc_scsi_dev_block(phba);
7102 /* Clean up all driver's outstanding SCSI I/Os */
7103 lpfc_sli_flush_fcp_rings(phba);
7104 return PCI_ERS_RESULT_DISCONNECT;
7105 }
7106
7107 pci_disable_device(pdev);
7108 /*
7109 * There may be I/Os dropped by the firmware.
7110 * Error iocb (I/O) on txcmplq and let the SCSI layer
7111 * retry it after re-establishing link.
7112 */
7113 pring = &psli->ring[psli->fcp_ring];
7114 lpfc_sli_abort_iocb_ring(phba, pring);
7115
7116 /* Disable interrupt */
7117 lpfc_sli_disable_intr(phba);
7118
7119 /* Request a slot reset. */
7120 return PCI_ERS_RESULT_NEED_RESET;
7121 }
7122
7123 /**
7124 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7125 * @pdev: pointer to PCI device.
7126 *
7127 * This routine is called from the PCI subsystem for error handling to
7128 * device with SLI-3 interface spec. This is called after PCI bus has been
7129 * reset to restart the PCI card from scratch, as if from a cold-boot.
7130 * During the PCI subsystem error recovery, after driver returns
7131 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7132 * recovery and then call this routine before calling the .resume method
7133 * to recover the device. This function will initialize the HBA device,
7134 * enable the interrupt, but it will just put the HBA to offline state
7135 * without passing any I/O traffic.
7136 *
7137 * Return codes
7138 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7139 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7140 */
7141 static pci_ers_result_t
7142 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7143 {
7144 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7145 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7146 struct lpfc_sli *psli = &phba->sli;
7147 uint32_t intr_mode;
7148
7149 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7150 if (pci_enable_device_mem(pdev)) {
7151 printk(KERN_ERR "lpfc: Cannot re-enable "
7152 "PCI device after reset.\n");
7153 return PCI_ERS_RESULT_DISCONNECT;
7154 }
7155
7156 pci_restore_state(pdev);
7157 if (pdev->is_busmaster)
7158 pci_set_master(pdev);
7159
7160 spin_lock_irq(&phba->hbalock);
7161 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7162 spin_unlock_irq(&phba->hbalock);
7163
7164 /* Configure and enable interrupt */
7165 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7166 if (intr_mode == LPFC_INTR_ERROR) {
7167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7168 "0427 Cannot re-enable interrupt after "
7169 "slot reset.\n");
7170 return PCI_ERS_RESULT_DISCONNECT;
7171 } else
7172 phba->intr_mode = intr_mode;
7173
7174 /* Take device offline; this will perform cleanup */
7175 lpfc_offline(phba);
7176 lpfc_sli_brdrestart(phba);
7177
7178 /* Log the current active interrupt mode */
7179 lpfc_log_intr_mode(phba, phba->intr_mode);
7180
7181 return PCI_ERS_RESULT_RECOVERED;
7182 }
7183
7184 /**
7185 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7186 * @pdev: pointer to PCI device
7187 *
7188 * This routine is called from the PCI subsystem for error handling to device
7189 * with SLI-3 interface spec. It is called when kernel error recovery tells
7190 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7191 * error recovery. After this call, traffic can start to flow from this device
7192 * again.
7193 */
7194 static void
7195 lpfc_io_resume_s3(struct pci_dev *pdev)
7196 {
7197 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7198 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7199
7200 lpfc_online(phba);
7201 }
7202
7203 /**
7204 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7205 * @phba: pointer to lpfc hba data structure.
7206 *
7207 * returns the number of ELS/CT IOCBs to reserve
7208 **/
7209 int
7210 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7211 {
7212 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7213
7214 if (phba->sli_rev == LPFC_SLI_REV4) {
7215 if (max_xri <= 100)
7216 return 4;
7217 else if (max_xri <= 256)
7218 return 8;
7219 else if (max_xri <= 512)
7220 return 16;
7221 else if (max_xri <= 1024)
7222 return 32;
7223 else
7224 return 48;
7225 } else
7226 return 0;
7227 }
7228
7229 /**
7230 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7231 * @pdev: pointer to PCI device
7232 * @pid: pointer to PCI device identifier
7233 *
7234 * This routine is called from the kernel's PCI subsystem to device with
7235 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7236 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7237 * information of the device and driver to see if the driver state that it
7238 * can support this kind of device. If the match is successful, the driver
7239 * core invokes this routine. If this routine determines it can claim the HBA,
7240 * it does all the initialization that it needs to do to handle the HBA
7241 * properly.
7242 *
7243 * Return code
7244 * 0 - driver can claim the device
7245 * negative value - driver can not claim the device
7246 **/
7247 static int __devinit
7248 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7249 {
7250 struct lpfc_hba *phba;
7251 struct lpfc_vport *vport = NULL;
7252 int error;
7253 uint32_t cfg_mode, intr_mode;
7254 int mcnt;
7255
7256 /* Allocate memory for HBA structure */
7257 phba = lpfc_hba_alloc(pdev);
7258 if (!phba)
7259 return -ENOMEM;
7260
7261 /* Perform generic PCI device enabling operation */
7262 error = lpfc_enable_pci_dev(phba);
7263 if (error) {
7264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7265 "1409 Failed to enable pci device.\n");
7266 goto out_free_phba;
7267 }
7268
7269 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
7270 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7271 if (error)
7272 goto out_disable_pci_dev;
7273
7274 /* Set up SLI-4 specific device PCI memory space */
7275 error = lpfc_sli4_pci_mem_setup(phba);
7276 if (error) {
7277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7278 "1410 Failed to set up pci memory space.\n");
7279 goto out_disable_pci_dev;
7280 }
7281
7282 /* Set up phase-1 common device driver resources */
7283 error = lpfc_setup_driver_resource_phase1(phba);
7284 if (error) {
7285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7286 "1411 Failed to set up driver resource.\n");
7287 goto out_unset_pci_mem_s4;
7288 }
7289
7290 /* Set up SLI-4 Specific device driver resources */
7291 error = lpfc_sli4_driver_resource_setup(phba);
7292 if (error) {
7293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7294 "1412 Failed to set up driver resource.\n");
7295 goto out_unset_pci_mem_s4;
7296 }
7297
7298 /* Initialize and populate the iocb list per host */
7299 error = lpfc_init_iocb_list(phba,
7300 phba->sli4_hba.max_cfg_param.max_xri);
7301 if (error) {
7302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7303 "1413 Failed to initialize iocb list.\n");
7304 goto out_unset_driver_resource_s4;
7305 }
7306
7307 /* Set up common device driver resources */
7308 error = lpfc_setup_driver_resource_phase2(phba);
7309 if (error) {
7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311 "1414 Failed to set up driver resource.\n");
7312 goto out_free_iocb_list;
7313 }
7314
7315 /* Create SCSI host to the physical port */
7316 error = lpfc_create_shost(phba);
7317 if (error) {
7318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7319 "1415 Failed to create scsi host.\n");
7320 goto out_unset_driver_resource;
7321 }
7322
7323 /* Configure sysfs attributes */
7324 vport = phba->pport;
7325 error = lpfc_alloc_sysfs_attr(vport);
7326 if (error) {
7327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7328 "1416 Failed to allocate sysfs attr\n");
7329 goto out_destroy_shost;
7330 }
7331
7332 /* Now, trying to enable interrupt and bring up the device */
7333 cfg_mode = phba->cfg_use_msi;
7334 while (true) {
7335 /* Put device to a known state before enabling interrupt */
7336 lpfc_stop_port(phba);
7337 /* Configure and enable interrupt */
7338 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7339 if (intr_mode == LPFC_INTR_ERROR) {
7340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7341 "0426 Failed to enable interrupt.\n");
7342 error = -ENODEV;
7343 goto out_free_sysfs_attr;
7344 }
7345 /* Set up SLI-4 HBA */
7346 if (lpfc_sli4_hba_setup(phba)) {
7347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7348 "1421 Failed to set up hba\n");
7349 error = -ENODEV;
7350 goto out_disable_intr;
7351 }
7352
7353 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
7354 if (intr_mode != 0)
7355 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
7356 LPFC_ACT_INTR_CNT);
7357
7358 /* Check active interrupts received only for MSI/MSI-X */
7359 if (intr_mode == 0 ||
7360 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7361 /* Log the current active interrupt mode */
7362 phba->intr_mode = intr_mode;
7363 lpfc_log_intr_mode(phba, intr_mode);
7364 break;
7365 }
7366 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7367 "0451 Configure interrupt mode (%d) "
7368 "failed active interrupt test.\n",
7369 intr_mode);
7370 /* Unset the preivous SLI-4 HBA setup */
7371 lpfc_sli4_unset_hba(phba);
7372 /* Try next level of interrupt mode */
7373 cfg_mode = --intr_mode;
7374 }
7375
7376 /* Perform post initialization setup */
7377 lpfc_post_init_setup(phba);
7378
7379 /* Check if there are static vports to be created. */
7380 lpfc_create_static_vport(phba);
7381
7382 return 0;
7383
7384 out_disable_intr:
7385 lpfc_sli4_disable_intr(phba);
7386 out_free_sysfs_attr:
7387 lpfc_free_sysfs_attr(vport);
7388 out_destroy_shost:
7389 lpfc_destroy_shost(phba);
7390 out_unset_driver_resource:
7391 lpfc_unset_driver_resource_phase2(phba);
7392 out_free_iocb_list:
7393 lpfc_free_iocb_list(phba);
7394 out_unset_driver_resource_s4:
7395 lpfc_sli4_driver_resource_unset(phba);
7396 out_unset_pci_mem_s4:
7397 lpfc_sli4_pci_mem_unset(phba);
7398 out_disable_pci_dev:
7399 lpfc_disable_pci_dev(phba);
7400 out_free_phba:
7401 lpfc_hba_free(phba);
7402 return error;
7403 }
7404
7405 /**
7406 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7407 * @pdev: pointer to PCI device
7408 *
7409 * This routine is called from the kernel's PCI subsystem to device with
7410 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7411 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7412 * device to be removed from the PCI subsystem properly.
7413 **/
7414 static void __devexit
7415 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
7416 {
7417 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7418 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7419 struct lpfc_vport **vports;
7420 struct lpfc_hba *phba = vport->phba;
7421 int i;
7422
7423 /* Mark the device unloading flag */
7424 spin_lock_irq(&phba->hbalock);
7425 vport->load_flag |= FC_UNLOADING;
7426 spin_unlock_irq(&phba->hbalock);
7427
7428 /* Free the HBA sysfs attributes */
7429 lpfc_free_sysfs_attr(vport);
7430
7431 /* Release all the vports against this physical port */
7432 vports = lpfc_create_vport_work_array(phba);
7433 if (vports != NULL)
7434 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7435 fc_vport_terminate(vports[i]->fc_vport);
7436 lpfc_destroy_vport_work_array(phba, vports);
7437
7438 /* Remove FC host and then SCSI host with the physical port */
7439 fc_remove_host(shost);
7440 scsi_remove_host(shost);
7441
7442 /* Perform cleanup on the physical port */
7443 lpfc_cleanup(vport);
7444
7445 /*
7446 * Bring down the SLI Layer. This step disables all interrupts,
7447 * clears the rings, discards all mailbox commands, and resets
7448 * the HBA FCoE function.
7449 */
7450 lpfc_debugfs_terminate(vport);
7451 lpfc_sli4_hba_unset(phba);
7452
7453 spin_lock_irq(&phba->hbalock);
7454 list_del_init(&vport->listentry);
7455 spin_unlock_irq(&phba->hbalock);
7456
7457 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
7458 * buffers are released to their corresponding pools here.
7459 */
7460 lpfc_scsi_free(phba);
7461 lpfc_sli4_driver_resource_unset(phba);
7462
7463 /* Unmap adapter Control and Doorbell registers */
7464 lpfc_sli4_pci_mem_unset(phba);
7465
7466 /* Release PCI resources and disable device's PCI function */
7467 scsi_host_put(shost);
7468 lpfc_disable_pci_dev(phba);
7469
7470 /* Finally, free the driver's device data structure */
7471 lpfc_hba_free(phba);
7472
7473 return;
7474 }
7475
7476 /**
7477 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
7478 * @pdev: pointer to PCI device
7479 * @msg: power management message
7480 *
7481 * This routine is called from the kernel's PCI subsystem to support system
7482 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
7483 * this method, it quiesces the device by stopping the driver's worker
7484 * thread for the device, turning off device's interrupt and DMA, and bring
7485 * the device offline. Note that as the driver implements the minimum PM
7486 * requirements to a power-aware driver's PM support for suspend/resume -- all
7487 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
7488 * method call will be treated as SUSPEND and the driver will fully
7489 * reinitialize its device during resume() method call, the driver will set
7490 * device to PCI_D3hot state in PCI config space instead of setting it
7491 * according to the @msg provided by the PM.
7492 *
7493 * Return code
7494 * 0 - driver suspended the device
7495 * Error otherwise
7496 **/
7497 static int
7498 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
7499 {
7500 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7501 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7502
7503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7504 "0298 PCI device Power Management suspend.\n");
7505
7506 /* Bring down the device */
7507 lpfc_offline_prep(phba);
7508 lpfc_offline(phba);
7509 kthread_stop(phba->worker_thread);
7510
7511 /* Disable interrupt from device */
7512 lpfc_sli4_disable_intr(phba);
7513
7514 /* Save device state to PCI config space */
7515 pci_save_state(pdev);
7516 pci_set_power_state(pdev, PCI_D3hot);
7517
7518 return 0;
7519 }
7520
7521 /**
7522 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
7523 * @pdev: pointer to PCI device
7524 *
7525 * This routine is called from the kernel's PCI subsystem to support system
7526 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
7527 * this method, it restores the device's PCI config space state and fully
7528 * reinitializes the device and brings it online. Note that as the driver
7529 * implements the minimum PM requirements to a power-aware driver's PM for
7530 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7531 * to the suspend() method call will be treated as SUSPEND and the driver
7532 * will fully reinitialize its device during resume() method call, the device
7533 * will be set to PCI_D0 directly in PCI config space before restoring the
7534 * state.
7535 *
7536 * Return code
7537 * 0 - driver suspended the device
7538 * Error otherwise
7539 **/
7540 static int
7541 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
7542 {
7543 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7544 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7545 uint32_t intr_mode;
7546 int error;
7547
7548 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7549 "0292 PCI device Power Management resume.\n");
7550
7551 /* Restore device state from PCI config space */
7552 pci_set_power_state(pdev, PCI_D0);
7553 pci_restore_state(pdev);
7554 if (pdev->is_busmaster)
7555 pci_set_master(pdev);
7556
7557 /* Startup the kernel thread for this host adapter. */
7558 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7559 "lpfc_worker_%d", phba->brd_no);
7560 if (IS_ERR(phba->worker_thread)) {
7561 error = PTR_ERR(phba->worker_thread);
7562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7563 "0293 PM resume failed to start worker "
7564 "thread: error=x%x.\n", error);
7565 return error;
7566 }
7567
7568 /* Configure and enable interrupt */
7569 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
7570 if (intr_mode == LPFC_INTR_ERROR) {
7571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7572 "0294 PM resume Failed to enable interrupt\n");
7573 return -EIO;
7574 } else
7575 phba->intr_mode = intr_mode;
7576
7577 /* Restart HBA and bring it online */
7578 lpfc_sli_brdrestart(phba);
7579 lpfc_online(phba);
7580
7581 /* Log the current active interrupt mode */
7582 lpfc_log_intr_mode(phba, phba->intr_mode);
7583
7584 return 0;
7585 }
7586
7587 /**
7588 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
7589 * @pdev: pointer to PCI device.
7590 * @state: the current PCI connection state.
7591 *
7592 * This routine is called from the PCI subsystem for error handling to device
7593 * with SLI-4 interface spec. This function is called by the PCI subsystem
7594 * after a PCI bus error affecting this device has been detected. When this
7595 * function is invoked, it will need to stop all the I/Os and interrupt(s)
7596 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
7597 * for the PCI subsystem to perform proper recovery as desired.
7598 *
7599 * Return codes
7600 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7601 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7602 **/
7603 static pci_ers_result_t
7604 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
7605 {
7606 return PCI_ERS_RESULT_NEED_RESET;
7607 }
7608
7609 /**
7610 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
7611 * @pdev: pointer to PCI device.
7612 *
7613 * This routine is called from the PCI subsystem for error handling to device
7614 * with SLI-4 interface spec. It is called after PCI bus has been reset to
7615 * restart the PCI card from scratch, as if from a cold-boot. During the
7616 * PCI subsystem error recovery, after the driver returns
7617 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7618 * recovery and then call this routine before calling the .resume method to
7619 * recover the device. This function will initialize the HBA device, enable
7620 * the interrupt, but it will just put the HBA to offline state without
7621 * passing any I/O traffic.
7622 *
7623 * Return codes
7624 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7625 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7626 */
7627 static pci_ers_result_t
7628 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
7629 {
7630 return PCI_ERS_RESULT_RECOVERED;
7631 }
7632
7633 /**
7634 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
7635 * @pdev: pointer to PCI device
7636 *
7637 * This routine is called from the PCI subsystem for error handling to device
7638 * with SLI-4 interface spec. It is called when kernel error recovery tells
7639 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7640 * error recovery. After this call, traffic can start to flow from this device
7641 * again.
7642 **/
7643 static void
7644 lpfc_io_resume_s4(struct pci_dev *pdev)
7645 {
7646 return;
7647 }
7648
7649 /**
7650 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
7651 * @pdev: pointer to PCI device
7652 * @pid: pointer to PCI device identifier
7653 *
7654 * This routine is to be registered to the kernel's PCI subsystem. When an
7655 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
7656 * at PCI device-specific information of the device and driver to see if the
7657 * driver state that it can support this kind of device. If the match is
7658 * successful, the driver core invokes this routine. This routine dispatches
7659 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
7660 * do all the initialization that it needs to do to handle the HBA device
7661 * properly.
7662 *
7663 * Return code
7664 * 0 - driver can claim the device
7665 * negative value - driver can not claim the device
7666 **/
7667 static int __devinit
7668 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
7669 {
7670 int rc;
7671 struct lpfc_sli_intf intf;
7672
7673 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0))
7674 return -ENODEV;
7675
7676 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
7677 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4))
7678 rc = lpfc_pci_probe_one_s4(pdev, pid);
7679 else
7680 rc = lpfc_pci_probe_one_s3(pdev, pid);
7681
7682 return rc;
7683 }
7684
7685 /**
7686 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
7687 * @pdev: pointer to PCI device
7688 *
7689 * This routine is to be registered to the kernel's PCI subsystem. When an
7690 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
7691 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
7692 * remove routine, which will perform all the necessary cleanup for the
7693 * device to be removed from the PCI subsystem properly.
7694 **/
7695 static void __devexit
7696 lpfc_pci_remove_one(struct pci_dev *pdev)
7697 {
7698 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7699 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7700
7701 switch (phba->pci_dev_grp) {
7702 case LPFC_PCI_DEV_LP:
7703 lpfc_pci_remove_one_s3(pdev);
7704 break;
7705 case LPFC_PCI_DEV_OC:
7706 lpfc_pci_remove_one_s4(pdev);
7707 break;
7708 default:
7709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7710 "1424 Invalid PCI device group: 0x%x\n",
7711 phba->pci_dev_grp);
7712 break;
7713 }
7714 return;
7715 }
7716
7717 /**
7718 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
7719 * @pdev: pointer to PCI device
7720 * @msg: power management message
7721 *
7722 * This routine is to be registered to the kernel's PCI subsystem to support
7723 * system Power Management (PM). When PM invokes this method, it dispatches
7724 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
7725 * suspend the device.
7726 *
7727 * Return code
7728 * 0 - driver suspended the device
7729 * Error otherwise
7730 **/
7731 static int
7732 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
7733 {
7734 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7735 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7736 int rc = -ENODEV;
7737
7738 switch (phba->pci_dev_grp) {
7739 case LPFC_PCI_DEV_LP:
7740 rc = lpfc_pci_suspend_one_s3(pdev, msg);
7741 break;
7742 case LPFC_PCI_DEV_OC:
7743 rc = lpfc_pci_suspend_one_s4(pdev, msg);
7744 break;
7745 default:
7746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7747 "1425 Invalid PCI device group: 0x%x\n",
7748 phba->pci_dev_grp);
7749 break;
7750 }
7751 return rc;
7752 }
7753
7754 /**
7755 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
7756 * @pdev: pointer to PCI device
7757 *
7758 * This routine is to be registered to the kernel's PCI subsystem to support
7759 * system Power Management (PM). When PM invokes this method, it dispatches
7760 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
7761 * resume the device.
7762 *
7763 * Return code
7764 * 0 - driver suspended the device
7765 * Error otherwise
7766 **/
7767 static int
7768 lpfc_pci_resume_one(struct pci_dev *pdev)
7769 {
7770 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7771 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7772 int rc = -ENODEV;
7773
7774 switch (phba->pci_dev_grp) {
7775 case LPFC_PCI_DEV_LP:
7776 rc = lpfc_pci_resume_one_s3(pdev);
7777 break;
7778 case LPFC_PCI_DEV_OC:
7779 rc = lpfc_pci_resume_one_s4(pdev);
7780 break;
7781 default:
7782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7783 "1426 Invalid PCI device group: 0x%x\n",
7784 phba->pci_dev_grp);
7785 break;
7786 }
7787 return rc;
7788 }
7789
7790 /**
7791 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
7792 * @pdev: pointer to PCI device.
7793 * @state: the current PCI connection state.
7794 *
7795 * This routine is registered to the PCI subsystem for error handling. This
7796 * function is called by the PCI subsystem after a PCI bus error affecting
7797 * this device has been detected. When this routine is invoked, it dispatches
7798 * the action to the proper SLI-3 or SLI-4 device error detected handling
7799 * routine, which will perform the proper error detected operation.
7800 *
7801 * Return codes
7802 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7803 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7804 **/
7805 static pci_ers_result_t
7806 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7807 {
7808 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7809 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7810 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7811
7812 switch (phba->pci_dev_grp) {
7813 case LPFC_PCI_DEV_LP:
7814 rc = lpfc_io_error_detected_s3(pdev, state);
7815 break;
7816 case LPFC_PCI_DEV_OC:
7817 rc = lpfc_io_error_detected_s4(pdev, state);
7818 break;
7819 default:
7820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7821 "1427 Invalid PCI device group: 0x%x\n",
7822 phba->pci_dev_grp);
7823 break;
7824 }
7825 return rc;
7826 }
7827
7828 /**
7829 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
7830 * @pdev: pointer to PCI device.
7831 *
7832 * This routine is registered to the PCI subsystem for error handling. This
7833 * function is called after PCI bus has been reset to restart the PCI card
7834 * from scratch, as if from a cold-boot. When this routine is invoked, it
7835 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
7836 * routine, which will perform the proper device reset.
7837 *
7838 * Return codes
7839 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7840 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7841 **/
7842 static pci_ers_result_t
7843 lpfc_io_slot_reset(struct pci_dev *pdev)
7844 {
7845 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7846 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7847 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7848
7849 switch (phba->pci_dev_grp) {
7850 case LPFC_PCI_DEV_LP:
7851 rc = lpfc_io_slot_reset_s3(pdev);
7852 break;
7853 case LPFC_PCI_DEV_OC:
7854 rc = lpfc_io_slot_reset_s4(pdev);
7855 break;
7856 default:
7857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7858 "1428 Invalid PCI device group: 0x%x\n",
7859 phba->pci_dev_grp);
7860 break;
7861 }
7862 return rc;
7863 }
7864
7865 /**
7866 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
7867 * @pdev: pointer to PCI device
7868 *
7869 * This routine is registered to the PCI subsystem for error handling. It
7870 * is called when kernel error recovery tells the lpfc driver that it is
7871 * OK to resume normal PCI operation after PCI bus error recovery. When
7872 * this routine is invoked, it dispatches the action to the proper SLI-3
7873 * or SLI-4 device io_resume routine, which will resume the device operation.
7874 **/
7875 static void
7876 lpfc_io_resume(struct pci_dev *pdev)
7877 {
7878 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7879 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7880
7881 switch (phba->pci_dev_grp) {
7882 case LPFC_PCI_DEV_LP:
7883 lpfc_io_resume_s3(pdev);
7884 break;
7885 case LPFC_PCI_DEV_OC:
7886 lpfc_io_resume_s4(pdev);
7887 break;
7888 default:
7889 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7890 "1429 Invalid PCI device group: 0x%x\n",
7891 phba->pci_dev_grp);
7892 break;
7893 }
7894 return;
7895 }
7896
7897 static struct pci_device_id lpfc_id_table[] = {
7898 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
7899 PCI_ANY_ID, PCI_ANY_ID, },
7900 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
7901 PCI_ANY_ID, PCI_ANY_ID, },
7902 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
7903 PCI_ANY_ID, PCI_ANY_ID, },
7904 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
7905 PCI_ANY_ID, PCI_ANY_ID, },
7906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
7907 PCI_ANY_ID, PCI_ANY_ID, },
7908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
7909 PCI_ANY_ID, PCI_ANY_ID, },
7910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
7911 PCI_ANY_ID, PCI_ANY_ID, },
7912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
7913 PCI_ANY_ID, PCI_ANY_ID, },
7914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
7915 PCI_ANY_ID, PCI_ANY_ID, },
7916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
7917 PCI_ANY_ID, PCI_ANY_ID, },
7918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
7919 PCI_ANY_ID, PCI_ANY_ID, },
7920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
7921 PCI_ANY_ID, PCI_ANY_ID, },
7922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
7923 PCI_ANY_ID, PCI_ANY_ID, },
7924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
7925 PCI_ANY_ID, PCI_ANY_ID, },
7926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
7927 PCI_ANY_ID, PCI_ANY_ID, },
7928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
7929 PCI_ANY_ID, PCI_ANY_ID, },
7930 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
7931 PCI_ANY_ID, PCI_ANY_ID, },
7932 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
7933 PCI_ANY_ID, PCI_ANY_ID, },
7934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
7935 PCI_ANY_ID, PCI_ANY_ID, },
7936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
7937 PCI_ANY_ID, PCI_ANY_ID, },
7938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
7939 PCI_ANY_ID, PCI_ANY_ID, },
7940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
7941 PCI_ANY_ID, PCI_ANY_ID, },
7942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
7943 PCI_ANY_ID, PCI_ANY_ID, },
7944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
7945 PCI_ANY_ID, PCI_ANY_ID, },
7946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
7947 PCI_ANY_ID, PCI_ANY_ID, },
7948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
7949 PCI_ANY_ID, PCI_ANY_ID, },
7950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
7951 PCI_ANY_ID, PCI_ANY_ID, },
7952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
7953 PCI_ANY_ID, PCI_ANY_ID, },
7954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
7955 PCI_ANY_ID, PCI_ANY_ID, },
7956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
7957 PCI_ANY_ID, PCI_ANY_ID, },
7958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
7959 PCI_ANY_ID, PCI_ANY_ID, },
7960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
7961 PCI_ANY_ID, PCI_ANY_ID, },
7962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
7963 PCI_ANY_ID, PCI_ANY_ID, },
7964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
7965 PCI_ANY_ID, PCI_ANY_ID, },
7966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
7967 PCI_ANY_ID, PCI_ANY_ID, },
7968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
7969 PCI_ANY_ID, PCI_ANY_ID, },
7970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
7971 PCI_ANY_ID, PCI_ANY_ID, },
7972 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
7973 PCI_ANY_ID, PCI_ANY_ID, },
7974 { 0 }
7975 };
7976
7977 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
7978
7979 static struct pci_error_handlers lpfc_err_handler = {
7980 .error_detected = lpfc_io_error_detected,
7981 .slot_reset = lpfc_io_slot_reset,
7982 .resume = lpfc_io_resume,
7983 };
7984
7985 static struct pci_driver lpfc_driver = {
7986 .name = LPFC_DRIVER_NAME,
7987 .id_table = lpfc_id_table,
7988 .probe = lpfc_pci_probe_one,
7989 .remove = __devexit_p(lpfc_pci_remove_one),
7990 .suspend = lpfc_pci_suspend_one,
7991 .resume = lpfc_pci_resume_one,
7992 .err_handler = &lpfc_err_handler,
7993 };
7994
7995 /**
7996 * lpfc_init - lpfc module initialization routine
7997 *
7998 * This routine is to be invoked when the lpfc module is loaded into the
7999 * kernel. The special kernel macro module_init() is used to indicate the
8000 * role of this routine to the kernel as lpfc module entry point.
8001 *
8002 * Return codes
8003 * 0 - successful
8004 * -ENOMEM - FC attach transport failed
8005 * all others - failed
8006 */
8007 static int __init
8008 lpfc_init(void)
8009 {
8010 int error = 0;
8011
8012 printk(LPFC_MODULE_DESC "\n");
8013 printk(LPFC_COPYRIGHT "\n");
8014
8015 if (lpfc_enable_npiv) {
8016 lpfc_transport_functions.vport_create = lpfc_vport_create;
8017 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8018 }
8019 lpfc_transport_template =
8020 fc_attach_transport(&lpfc_transport_functions);
8021 if (lpfc_transport_template == NULL)
8022 return -ENOMEM;
8023 if (lpfc_enable_npiv) {
8024 lpfc_vport_transport_template =
8025 fc_attach_transport(&lpfc_vport_transport_functions);
8026 if (lpfc_vport_transport_template == NULL) {
8027 fc_release_transport(lpfc_transport_template);
8028 return -ENOMEM;
8029 }
8030 }
8031 error = pci_register_driver(&lpfc_driver);
8032 if (error) {
8033 fc_release_transport(lpfc_transport_template);
8034 if (lpfc_enable_npiv)
8035 fc_release_transport(lpfc_vport_transport_template);
8036 }
8037
8038 return error;
8039 }
8040
8041 /**
8042 * lpfc_exit - lpfc module removal routine
8043 *
8044 * This routine is invoked when the lpfc module is removed from the kernel.
8045 * The special kernel macro module_exit() is used to indicate the role of
8046 * this routine to the kernel as lpfc module exit point.
8047 */
8048 static void __exit
8049 lpfc_exit(void)
8050 {
8051 pci_unregister_driver(&lpfc_driver);
8052 fc_release_transport(lpfc_transport_template);
8053 if (lpfc_enable_npiv)
8054 fc_release_transport(lpfc_vport_transport_template);
8055 if (_dump_buf_data) {
8056 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data "
8057 "at 0x%p\n",
8058 (1L << _dump_buf_data_order), _dump_buf_data);
8059 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8060 }
8061
8062 if (_dump_buf_dif) {
8063 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif "
8064 "at 0x%p\n",
8065 (1L << _dump_buf_dif_order), _dump_buf_dif);
8066 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8067 }
8068 }
8069
8070 module_init(lpfc_init);
8071 module_exit(lpfc_exit);
8072 MODULE_LICENSE("GPL");
8073 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8074 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8075 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Support for the Chinese Samsung S3C2440 based development boards