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Merge branches 'armv7', 'at91', 'misc' and 'omap' into devel
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / lpfc / lpfc_init.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2006 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
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_transport_fc.h>
35
36 #include "lpfc_hw.h"
37 #include "lpfc_sli.h"
38 #include "lpfc_disc.h"
39 #include "lpfc_scsi.h"
40 #include "lpfc.h"
41 #include "lpfc_logmsg.h"
42 #include "lpfc_crtn.h"
43 #include "lpfc_version.h"
44
45 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
46 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
47 static int lpfc_post_rcv_buf(struct lpfc_hba *);
48
49 static struct scsi_transport_template *lpfc_transport_template = NULL;
50 static DEFINE_IDR(lpfc_hba_index);
51
52 /************************************************************************/
53 /* */
54 /* lpfc_config_port_prep */
55 /* This routine will do LPFC initialization prior to the */
56 /* CONFIG_PORT mailbox command. This will be initialized */
57 /* as a SLI layer callback routine. */
58 /* This routine returns 0 on success or -ERESTART if it wants */
59 /* the SLI layer to reset the HBA and try again. Any */
60 /* other return value indicates an error. */
61 /* */
62 /************************************************************************/
63 int
64 lpfc_config_port_prep(struct lpfc_hba * phba)
65 {
66 lpfc_vpd_t *vp = &phba->vpd;
67 int i = 0, rc;
68 LPFC_MBOXQ_t *pmb;
69 MAILBOX_t *mb;
70 char *lpfc_vpd_data = NULL;
71 uint16_t offset = 0;
72 static char licensed[56] =
73 "key unlock for use with gnu public licensed code only\0";
74 static int init_key = 1;
75
76 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
77 if (!pmb) {
78 phba->hba_state = LPFC_HBA_ERROR;
79 return -ENOMEM;
80 }
81
82 mb = &pmb->mb;
83 phba->hba_state = LPFC_INIT_MBX_CMDS;
84
85 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
86 if (init_key) {
87 uint32_t *ptext = (uint32_t *) licensed;
88
89 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
90 *ptext = cpu_to_be32(*ptext);
91 init_key = 0;
92 }
93
94 lpfc_read_nv(phba, pmb);
95 memset((char*)mb->un.varRDnvp.rsvd3, 0,
96 sizeof (mb->un.varRDnvp.rsvd3));
97 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
98 sizeof (licensed));
99
100 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
101
102 if (rc != MBX_SUCCESS) {
103 lpfc_printf_log(phba,
104 KERN_ERR,
105 LOG_MBOX,
106 "%d:0324 Config Port initialization "
107 "error, mbxCmd x%x READ_NVPARM, "
108 "mbxStatus x%x\n",
109 phba->brd_no,
110 mb->mbxCommand, mb->mbxStatus);
111 mempool_free(pmb, phba->mbox_mem_pool);
112 return -ERESTART;
113 }
114 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
115 sizeof (mb->un.varRDnvp.nodename));
116 }
117
118 /* Setup and issue mailbox READ REV command */
119 lpfc_read_rev(phba, pmb);
120 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
121 if (rc != MBX_SUCCESS) {
122 lpfc_printf_log(phba,
123 KERN_ERR,
124 LOG_INIT,
125 "%d:0439 Adapter failed to init, mbxCmd x%x "
126 "READ_REV, mbxStatus x%x\n",
127 phba->brd_no,
128 mb->mbxCommand, mb->mbxStatus);
129 mempool_free( pmb, phba->mbox_mem_pool);
130 return -ERESTART;
131 }
132
133 /*
134 * The value of rr must be 1 since the driver set the cv field to 1.
135 * This setting requires the FW to set all revision fields.
136 */
137 if (mb->un.varRdRev.rr == 0) {
138 vp->rev.rBit = 0;
139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
140 "%d:0440 Adapter failed to init, READ_REV has "
141 "missing revision information.\n",
142 phba->brd_no);
143 mempool_free(pmb, phba->mbox_mem_pool);
144 return -ERESTART;
145 }
146
147 /* Save information as VPD data */
148 vp->rev.rBit = 1;
149 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
150 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
151 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
152 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
153 vp->rev.biuRev = mb->un.varRdRev.biuRev;
154 vp->rev.smRev = mb->un.varRdRev.smRev;
155 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
156 vp->rev.endecRev = mb->un.varRdRev.endecRev;
157 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
158 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
159 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
160 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
161 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
162 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
163
164 if (lpfc_is_LC_HBA(phba->pcidev->device))
165 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
166 sizeof (phba->RandomData));
167
168 /* Get adapter VPD information */
169 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
170 if (!pmb->context2)
171 goto out_free_mbox;
172 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
173 if (!lpfc_vpd_data)
174 goto out_free_context2;
175
176 do {
177 lpfc_dump_mem(phba, pmb, offset);
178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
179
180 if (rc != MBX_SUCCESS) {
181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
182 "%d:0441 VPD not present on adapter, "
183 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
184 phba->brd_no,
185 mb->mbxCommand, mb->mbxStatus);
186 mb->un.varDmp.word_cnt = 0;
187 }
188 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
189 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
190 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset,
191 mb->un.varDmp.word_cnt);
192 offset += mb->un.varDmp.word_cnt;
193 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
194 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
195
196 kfree(lpfc_vpd_data);
197 out_free_context2:
198 kfree(pmb->context2);
199 out_free_mbox:
200 mempool_free(pmb, phba->mbox_mem_pool);
201 return 0;
202 }
203
204 /************************************************************************/
205 /* */
206 /* lpfc_config_port_post */
207 /* This routine will do LPFC initialization after the */
208 /* CONFIG_PORT mailbox command. This will be initialized */
209 /* as a SLI layer callback routine. */
210 /* This routine returns 0 on success. Any other return value */
211 /* indicates an error. */
212 /* */
213 /************************************************************************/
214 int
215 lpfc_config_port_post(struct lpfc_hba * phba)
216 {
217 LPFC_MBOXQ_t *pmb;
218 MAILBOX_t *mb;
219 struct lpfc_dmabuf *mp;
220 struct lpfc_sli *psli = &phba->sli;
221 uint32_t status, timeout;
222 int i, j, rc;
223
224 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
225 if (!pmb) {
226 phba->hba_state = LPFC_HBA_ERROR;
227 return -ENOMEM;
228 }
229 mb = &pmb->mb;
230
231 lpfc_config_link(phba, pmb);
232 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
233 if (rc != MBX_SUCCESS) {
234 lpfc_printf_log(phba,
235 KERN_ERR,
236 LOG_INIT,
237 "%d:0447 Adapter failed init, mbxCmd x%x "
238 "CONFIG_LINK mbxStatus x%x\n",
239 phba->brd_no,
240 mb->mbxCommand, mb->mbxStatus);
241 phba->hba_state = LPFC_HBA_ERROR;
242 mempool_free( pmb, phba->mbox_mem_pool);
243 return -EIO;
244 }
245
246 /* Get login parameters for NID. */
247 lpfc_read_sparam(phba, pmb);
248 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
249 lpfc_printf_log(phba,
250 KERN_ERR,
251 LOG_INIT,
252 "%d:0448 Adapter failed init, mbxCmd x%x "
253 "READ_SPARM mbxStatus x%x\n",
254 phba->brd_no,
255 mb->mbxCommand, mb->mbxStatus);
256 phba->hba_state = LPFC_HBA_ERROR;
257 mp = (struct lpfc_dmabuf *) pmb->context1;
258 mempool_free( pmb, phba->mbox_mem_pool);
259 lpfc_mbuf_free(phba, mp->virt, mp->phys);
260 kfree(mp);
261 return -EIO;
262 }
263
264 mp = (struct lpfc_dmabuf *) pmb->context1;
265
266 memcpy(&phba->fc_sparam, mp->virt, sizeof (struct serv_parm));
267 lpfc_mbuf_free(phba, mp->virt, mp->phys);
268 kfree(mp);
269 pmb->context1 = NULL;
270
271 if (phba->cfg_soft_wwnn)
272 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
273 if (phba->cfg_soft_wwpn)
274 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
275 memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
276 sizeof (struct lpfc_name));
277 memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
278 sizeof (struct lpfc_name));
279 /* If no serial number in VPD data, use low 6 bytes of WWNN */
280 /* This should be consolidated into parse_vpd ? - mr */
281 if (phba->SerialNumber[0] == 0) {
282 uint8_t *outptr;
283
284 outptr = &phba->fc_nodename.u.s.IEEE[0];
285 for (i = 0; i < 12; i++) {
286 status = *outptr++;
287 j = ((status & 0xf0) >> 4);
288 if (j <= 9)
289 phba->SerialNumber[i] =
290 (char)((uint8_t) 0x30 + (uint8_t) j);
291 else
292 phba->SerialNumber[i] =
293 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
294 i++;
295 j = (status & 0xf);
296 if (j <= 9)
297 phba->SerialNumber[i] =
298 (char)((uint8_t) 0x30 + (uint8_t) j);
299 else
300 phba->SerialNumber[i] =
301 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
302 }
303 }
304
305 lpfc_read_config(phba, pmb);
306 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
307 lpfc_printf_log(phba,
308 KERN_ERR,
309 LOG_INIT,
310 "%d:0453 Adapter failed to init, mbxCmd x%x "
311 "READ_CONFIG, mbxStatus x%x\n",
312 phba->brd_no,
313 mb->mbxCommand, mb->mbxStatus);
314 phba->hba_state = LPFC_HBA_ERROR;
315 mempool_free( pmb, phba->mbox_mem_pool);
316 return -EIO;
317 }
318
319 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
320 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
321 phba->cfg_hba_queue_depth =
322 mb->un.varRdConfig.max_xri + 1;
323
324 phba->lmt = mb->un.varRdConfig.lmt;
325
326 /* Get the default values for Model Name and Description */
327 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
328
329 if ((phba->cfg_link_speed > LINK_SPEED_10G)
330 || ((phba->cfg_link_speed == LINK_SPEED_1G)
331 && !(phba->lmt & LMT_1Gb))
332 || ((phba->cfg_link_speed == LINK_SPEED_2G)
333 && !(phba->lmt & LMT_2Gb))
334 || ((phba->cfg_link_speed == LINK_SPEED_4G)
335 && !(phba->lmt & LMT_4Gb))
336 || ((phba->cfg_link_speed == LINK_SPEED_8G)
337 && !(phba->lmt & LMT_8Gb))
338 || ((phba->cfg_link_speed == LINK_SPEED_10G)
339 && !(phba->lmt & LMT_10Gb))) {
340 /* Reset link speed to auto */
341 lpfc_printf_log(phba,
342 KERN_WARNING,
343 LOG_LINK_EVENT,
344 "%d:1302 Invalid speed for this board: "
345 "Reset link speed to auto: x%x\n",
346 phba->brd_no,
347 phba->cfg_link_speed);
348 phba->cfg_link_speed = LINK_SPEED_AUTO;
349 }
350
351 phba->hba_state = LPFC_LINK_DOWN;
352
353 /* Only process IOCBs on ring 0 till hba_state is READY */
354 if (psli->ring[psli->extra_ring].cmdringaddr)
355 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
356 if (psli->ring[psli->fcp_ring].cmdringaddr)
357 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
358 if (psli->ring[psli->next_ring].cmdringaddr)
359 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
360
361 /* Post receive buffers for desired rings */
362 lpfc_post_rcv_buf(phba);
363
364 /* Enable appropriate host interrupts */
365 spin_lock_irq(phba->host->host_lock);
366 status = readl(phba->HCregaddr);
367 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
368 if (psli->num_rings > 0)
369 status |= HC_R0INT_ENA;
370 if (psli->num_rings > 1)
371 status |= HC_R1INT_ENA;
372 if (psli->num_rings > 2)
373 status |= HC_R2INT_ENA;
374 if (psli->num_rings > 3)
375 status |= HC_R3INT_ENA;
376
377 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
378 (phba->cfg_poll & DISABLE_FCP_RING_INT))
379 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
380
381 writel(status, phba->HCregaddr);
382 readl(phba->HCregaddr); /* flush */
383 spin_unlock_irq(phba->host->host_lock);
384
385 /*
386 * Setup the ring 0 (els) timeout handler
387 */
388 timeout = phba->fc_ratov << 1;
389 phba->els_tmofunc.expires = jiffies + HZ * timeout;
390 add_timer(&phba->els_tmofunc);
391
392 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
393 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
394 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
395 if (rc != MBX_SUCCESS) {
396 lpfc_printf_log(phba,
397 KERN_ERR,
398 LOG_INIT,
399 "%d:0454 Adapter failed to init, mbxCmd x%x "
400 "INIT_LINK, mbxStatus x%x\n",
401 phba->brd_no,
402 mb->mbxCommand, mb->mbxStatus);
403
404 /* Clear all interrupt enable conditions */
405 writel(0, phba->HCregaddr);
406 readl(phba->HCregaddr); /* flush */
407 /* Clear all pending interrupts */
408 writel(0xffffffff, phba->HAregaddr);
409 readl(phba->HAregaddr); /* flush */
410
411 phba->hba_state = LPFC_HBA_ERROR;
412 if (rc != MBX_BUSY)
413 mempool_free(pmb, phba->mbox_mem_pool);
414 return -EIO;
415 }
416 /* MBOX buffer will be freed in mbox compl */
417
418 return (0);
419 }
420
421 static int
422 lpfc_discovery_wait(struct lpfc_hba *phba)
423 {
424 int i = 0;
425
426 while ((phba->hba_state != LPFC_HBA_READY) ||
427 (phba->num_disc_nodes) || (phba->fc_prli_sent) ||
428 ((phba->fc_map_cnt == 0) && (i<2)) ||
429 (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
430 /* Check every second for 30 retries. */
431 i++;
432 if (i > 30) {
433 return -ETIMEDOUT;
434 }
435 if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
436 /* The link is down. Set linkdown timeout */
437 return -ETIMEDOUT;
438 }
439
440 /* Delay for 1 second to give discovery time to complete. */
441 msleep(1000);
442
443 }
444
445 return 0;
446 }
447
448 /************************************************************************/
449 /* */
450 /* lpfc_hba_down_prep */
451 /* This routine will do LPFC uninitialization before the */
452 /* HBA is reset when bringing down the SLI Layer. This will be */
453 /* initialized as a SLI layer callback routine. */
454 /* This routine returns 0 on success. Any other return value */
455 /* indicates an error. */
456 /* */
457 /************************************************************************/
458 int
459 lpfc_hba_down_prep(struct lpfc_hba * phba)
460 {
461 /* Disable interrupts */
462 writel(0, phba->HCregaddr);
463 readl(phba->HCregaddr); /* flush */
464
465 /* Cleanup potential discovery resources */
466 lpfc_els_flush_rscn(phba);
467 lpfc_els_flush_cmd(phba);
468 lpfc_disc_flush_list(phba);
469
470 return (0);
471 }
472
473 /************************************************************************/
474 /* */
475 /* lpfc_hba_down_post */
476 /* This routine will do uninitialization after the HBA is reset */
477 /* when bringing down the SLI Layer. */
478 /* This routine returns 0 on success. Any other return value */
479 /* indicates an error. */
480 /* */
481 /************************************************************************/
482 int
483 lpfc_hba_down_post(struct lpfc_hba * phba)
484 {
485 struct lpfc_sli *psli = &phba->sli;
486 struct lpfc_sli_ring *pring;
487 struct lpfc_dmabuf *mp, *next_mp;
488 int i;
489
490 /* Cleanup preposted buffers on the ELS ring */
491 pring = &psli->ring[LPFC_ELS_RING];
492 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
493 list_del(&mp->list);
494 pring->postbufq_cnt--;
495 lpfc_mbuf_free(phba, mp->virt, mp->phys);
496 kfree(mp);
497 }
498
499 for (i = 0; i < psli->num_rings; i++) {
500 pring = &psli->ring[i];
501 lpfc_sli_abort_iocb_ring(phba, pring);
502 }
503
504 return 0;
505 }
506
507 /************************************************************************/
508 /* */
509 /* lpfc_handle_eratt */
510 /* This routine will handle processing a Host Attention */
511 /* Error Status event. This will be initialized */
512 /* as a SLI layer callback routine. */
513 /* */
514 /************************************************************************/
515 void
516 lpfc_handle_eratt(struct lpfc_hba * phba)
517 {
518 struct lpfc_sli *psli = &phba->sli;
519 struct lpfc_sli_ring *pring;
520 uint32_t event_data;
521 /* If the pci channel is offline, ignore possible errors,
522 * since we cannot communicate with the pci card anyway. */
523 if (pci_channel_offline(phba->pcidev))
524 return;
525
526 if (phba->work_hs & HS_FFER6 ||
527 phba->work_hs & HS_FFER5) {
528 /* Re-establishing Link */
529 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
530 "%d:1301 Re-establishing Link "
531 "Data: x%x x%x x%x\n",
532 phba->brd_no, phba->work_hs,
533 phba->work_status[0], phba->work_status[1]);
534 spin_lock_irq(phba->host->host_lock);
535 phba->fc_flag |= FC_ESTABLISH_LINK;
536 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
537 spin_unlock_irq(phba->host->host_lock);
538
539 /*
540 * Firmware stops when it triggled erratt with HS_FFER6.
541 * That could cause the I/Os dropped by the firmware.
542 * Error iocb (I/O) on txcmplq and let the SCSI layer
543 * retry it after re-establishing link.
544 */
545 pring = &psli->ring[psli->fcp_ring];
546 lpfc_sli_abort_iocb_ring(phba, pring);
547
548
549 /*
550 * There was a firmware error. Take the hba offline and then
551 * attempt to restart it.
552 */
553 lpfc_offline(phba);
554 lpfc_sli_brdrestart(phba);
555 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
556 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
557 return;
558 }
559 } else {
560 /* The if clause above forces this code path when the status
561 * failure is a value other than FFER6. Do not call the offline
562 * twice. This is the adapter hardware error path.
563 */
564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
565 "%d:0457 Adapter Hardware Error "
566 "Data: x%x x%x x%x\n",
567 phba->brd_no, phba->work_hs,
568 phba->work_status[0], phba->work_status[1]);
569
570 event_data = FC_REG_DUMP_EVENT;
571 fc_host_post_vendor_event(phba->host, fc_get_event_number(),
572 sizeof(event_data), (char *) &event_data,
573 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
574
575 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
576 lpfc_offline(phba);
577 phba->hba_state = LPFC_HBA_ERROR;
578 lpfc_hba_down_post(phba);
579 }
580 }
581
582 /************************************************************************/
583 /* */
584 /* lpfc_handle_latt */
585 /* This routine will handle processing a Host Attention */
586 /* Link Status event. This will be initialized */
587 /* as a SLI layer callback routine. */
588 /* */
589 /************************************************************************/
590 void
591 lpfc_handle_latt(struct lpfc_hba * phba)
592 {
593 struct lpfc_sli *psli = &phba->sli;
594 LPFC_MBOXQ_t *pmb;
595 volatile uint32_t control;
596 struct lpfc_dmabuf *mp;
597 int rc = -ENOMEM;
598
599 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
600 if (!pmb)
601 goto lpfc_handle_latt_err_exit;
602
603 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
604 if (!mp)
605 goto lpfc_handle_latt_free_pmb;
606
607 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
608 if (!mp->virt)
609 goto lpfc_handle_latt_free_mp;
610
611 rc = -EIO;
612
613 /* Cleanup any outstanding ELS commands */
614 lpfc_els_flush_cmd(phba);
615
616 psli->slistat.link_event++;
617 lpfc_read_la(phba, pmb, mp);
618 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
619 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
620 if (rc == MBX_NOT_FINISHED)
621 goto lpfc_handle_latt_free_mbuf;
622
623 /* Clear Link Attention in HA REG */
624 spin_lock_irq(phba->host->host_lock);
625 writel(HA_LATT, phba->HAregaddr);
626 readl(phba->HAregaddr); /* flush */
627 spin_unlock_irq(phba->host->host_lock);
628
629 return;
630
631 lpfc_handle_latt_free_mbuf:
632 lpfc_mbuf_free(phba, mp->virt, mp->phys);
633 lpfc_handle_latt_free_mp:
634 kfree(mp);
635 lpfc_handle_latt_free_pmb:
636 kfree(pmb);
637 lpfc_handle_latt_err_exit:
638 /* Enable Link attention interrupts */
639 spin_lock_irq(phba->host->host_lock);
640 psli->sli_flag |= LPFC_PROCESS_LA;
641 control = readl(phba->HCregaddr);
642 control |= HC_LAINT_ENA;
643 writel(control, phba->HCregaddr);
644 readl(phba->HCregaddr); /* flush */
645
646 /* Clear Link Attention in HA REG */
647 writel(HA_LATT, phba->HAregaddr);
648 readl(phba->HAregaddr); /* flush */
649 spin_unlock_irq(phba->host->host_lock);
650 lpfc_linkdown(phba);
651 phba->hba_state = LPFC_HBA_ERROR;
652
653 /* The other case is an error from issue_mbox */
654 if (rc == -ENOMEM)
655 lpfc_printf_log(phba,
656 KERN_WARNING,
657 LOG_MBOX,
658 "%d:0300 READ_LA: no buffers\n",
659 phba->brd_no);
660
661 return;
662 }
663
664 /************************************************************************/
665 /* */
666 /* lpfc_parse_vpd */
667 /* This routine will parse the VPD data */
668 /* */
669 /************************************************************************/
670 static int
671 lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len)
672 {
673 uint8_t lenlo, lenhi;
674 int Length;
675 int i, j;
676 int finished = 0;
677 int index = 0;
678
679 if (!vpd)
680 return 0;
681
682 /* Vital Product */
683 lpfc_printf_log(phba,
684 KERN_INFO,
685 LOG_INIT,
686 "%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
687 phba->brd_no,
688 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
689 (uint32_t) vpd[3]);
690 while (!finished && (index < (len - 4))) {
691 switch (vpd[index]) {
692 case 0x82:
693 case 0x91:
694 index += 1;
695 lenlo = vpd[index];
696 index += 1;
697 lenhi = vpd[index];
698 index += 1;
699 i = ((((unsigned short)lenhi) << 8) + lenlo);
700 index += i;
701 break;
702 case 0x90:
703 index += 1;
704 lenlo = vpd[index];
705 index += 1;
706 lenhi = vpd[index];
707 index += 1;
708 Length = ((((unsigned short)lenhi) << 8) + lenlo);
709 if (Length > len - index)
710 Length = len - index;
711 while (Length > 0) {
712 /* Look for Serial Number */
713 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
714 index += 2;
715 i = vpd[index];
716 index += 1;
717 j = 0;
718 Length -= (3+i);
719 while(i--) {
720 phba->SerialNumber[j++] = vpd[index++];
721 if (j == 31)
722 break;
723 }
724 phba->SerialNumber[j] = 0;
725 continue;
726 }
727 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
728 phba->vpd_flag |= VPD_MODEL_DESC;
729 index += 2;
730 i = vpd[index];
731 index += 1;
732 j = 0;
733 Length -= (3+i);
734 while(i--) {
735 phba->ModelDesc[j++] = vpd[index++];
736 if (j == 255)
737 break;
738 }
739 phba->ModelDesc[j] = 0;
740 continue;
741 }
742 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
743 phba->vpd_flag |= VPD_MODEL_NAME;
744 index += 2;
745 i = vpd[index];
746 index += 1;
747 j = 0;
748 Length -= (3+i);
749 while(i--) {
750 phba->ModelName[j++] = vpd[index++];
751 if (j == 79)
752 break;
753 }
754 phba->ModelName[j] = 0;
755 continue;
756 }
757 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
758 phba->vpd_flag |= VPD_PROGRAM_TYPE;
759 index += 2;
760 i = vpd[index];
761 index += 1;
762 j = 0;
763 Length -= (3+i);
764 while(i--) {
765 phba->ProgramType[j++] = vpd[index++];
766 if (j == 255)
767 break;
768 }
769 phba->ProgramType[j] = 0;
770 continue;
771 }
772 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
773 phba->vpd_flag |= VPD_PORT;
774 index += 2;
775 i = vpd[index];
776 index += 1;
777 j = 0;
778 Length -= (3+i);
779 while(i--) {
780 phba->Port[j++] = vpd[index++];
781 if (j == 19)
782 break;
783 }
784 phba->Port[j] = 0;
785 continue;
786 }
787 else {
788 index += 2;
789 i = vpd[index];
790 index += 1;
791 index += i;
792 Length -= (3 + i);
793 }
794 }
795 finished = 0;
796 break;
797 case 0x78:
798 finished = 1;
799 break;
800 default:
801 index ++;
802 break;
803 }
804 }
805
806 return(1);
807 }
808
809 static void
810 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
811 {
812 lpfc_vpd_t *vp;
813 uint16_t dev_id = phba->pcidev->device;
814 int max_speed;
815 struct {
816 char * name;
817 int max_speed;
818 char * bus;
819 } m = {"<Unknown>", 0, ""};
820
821 if (mdp && mdp[0] != '\0'
822 && descp && descp[0] != '\0')
823 return;
824
825 if (phba->lmt & LMT_10Gb)
826 max_speed = 10;
827 else if (phba->lmt & LMT_8Gb)
828 max_speed = 8;
829 else if (phba->lmt & LMT_4Gb)
830 max_speed = 4;
831 else if (phba->lmt & LMT_2Gb)
832 max_speed = 2;
833 else
834 max_speed = 1;
835
836 vp = &phba->vpd;
837
838 switch (dev_id) {
839 case PCI_DEVICE_ID_FIREFLY:
840 m = (typeof(m)){"LP6000", max_speed, "PCI"};
841 break;
842 case PCI_DEVICE_ID_SUPERFLY:
843 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
844 m = (typeof(m)){"LP7000", max_speed, "PCI"};
845 else
846 m = (typeof(m)){"LP7000E", max_speed, "PCI"};
847 break;
848 case PCI_DEVICE_ID_DRAGONFLY:
849 m = (typeof(m)){"LP8000", max_speed, "PCI"};
850 break;
851 case PCI_DEVICE_ID_CENTAUR:
852 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
853 m = (typeof(m)){"LP9002", max_speed, "PCI"};
854 else
855 m = (typeof(m)){"LP9000", max_speed, "PCI"};
856 break;
857 case PCI_DEVICE_ID_RFLY:
858 m = (typeof(m)){"LP952", max_speed, "PCI"};
859 break;
860 case PCI_DEVICE_ID_PEGASUS:
861 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
862 break;
863 case PCI_DEVICE_ID_THOR:
864 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
865 break;
866 case PCI_DEVICE_ID_VIPER:
867 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
868 break;
869 case PCI_DEVICE_ID_PFLY:
870 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
871 break;
872 case PCI_DEVICE_ID_TFLY:
873 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
874 break;
875 case PCI_DEVICE_ID_HELIOS:
876 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
877 break;
878 case PCI_DEVICE_ID_HELIOS_SCSP:
879 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
880 break;
881 case PCI_DEVICE_ID_HELIOS_DCSP:
882 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
883 break;
884 case PCI_DEVICE_ID_NEPTUNE:
885 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
886 break;
887 case PCI_DEVICE_ID_NEPTUNE_SCSP:
888 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
889 break;
890 case PCI_DEVICE_ID_NEPTUNE_DCSP:
891 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
892 break;
893 case PCI_DEVICE_ID_BMID:
894 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
895 break;
896 case PCI_DEVICE_ID_BSMB:
897 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
898 break;
899 case PCI_DEVICE_ID_ZEPHYR:
900 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
901 break;
902 case PCI_DEVICE_ID_ZEPHYR_SCSP:
903 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
904 break;
905 case PCI_DEVICE_ID_ZEPHYR_DCSP:
906 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
907 break;
908 case PCI_DEVICE_ID_ZMID:
909 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
910 break;
911 case PCI_DEVICE_ID_ZSMB:
912 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
913 break;
914 case PCI_DEVICE_ID_LP101:
915 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
916 break;
917 case PCI_DEVICE_ID_LP10000S:
918 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
919 break;
920 case PCI_DEVICE_ID_LP11000S:
921 m = (typeof(m)){"LP11000-S", max_speed,
922 "PCI-X2"};
923 break;
924 case PCI_DEVICE_ID_LPE11000S:
925 m = (typeof(m)){"LPe11000-S", max_speed,
926 "PCIe"};
927 break;
928 default:
929 m = (typeof(m)){ NULL };
930 break;
931 }
932
933 if (mdp && mdp[0] == '\0')
934 snprintf(mdp, 79,"%s", m.name);
935 if (descp && descp[0] == '\0')
936 snprintf(descp, 255,
937 "Emulex %s %dGb %s Fibre Channel Adapter",
938 m.name, m.max_speed, m.bus);
939 }
940
941 /**************************************************/
942 /* lpfc_post_buffer */
943 /* */
944 /* This routine will post count buffers to the */
945 /* ring with the QUE_RING_BUF_CN command. This */
946 /* allows 3 buffers / command to be posted. */
947 /* Returns the number of buffers NOT posted. */
948 /**************************************************/
949 int
950 lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
951 int type)
952 {
953 IOCB_t *icmd;
954 struct lpfc_iocbq *iocb;
955 struct lpfc_dmabuf *mp1, *mp2;
956
957 cnt += pring->missbufcnt;
958
959 /* While there are buffers to post */
960 while (cnt > 0) {
961 /* Allocate buffer for command iocb */
962 spin_lock_irq(phba->host->host_lock);
963 iocb = lpfc_sli_get_iocbq(phba);
964 spin_unlock_irq(phba->host->host_lock);
965 if (iocb == NULL) {
966 pring->missbufcnt = cnt;
967 return cnt;
968 }
969 icmd = &iocb->iocb;
970
971 /* 2 buffers can be posted per command */
972 /* Allocate buffer to post */
973 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
974 if (mp1)
975 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
976 &mp1->phys);
977 if (mp1 == 0 || mp1->virt == 0) {
978 kfree(mp1);
979 spin_lock_irq(phba->host->host_lock);
980 lpfc_sli_release_iocbq(phba, iocb);
981 spin_unlock_irq(phba->host->host_lock);
982 pring->missbufcnt = cnt;
983 return cnt;
984 }
985
986 INIT_LIST_HEAD(&mp1->list);
987 /* Allocate buffer to post */
988 if (cnt > 1) {
989 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
990 if (mp2)
991 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
992 &mp2->phys);
993 if (mp2 == 0 || mp2->virt == 0) {
994 kfree(mp2);
995 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
996 kfree(mp1);
997 spin_lock_irq(phba->host->host_lock);
998 lpfc_sli_release_iocbq(phba, iocb);
999 spin_unlock_irq(phba->host->host_lock);
1000 pring->missbufcnt = cnt;
1001 return cnt;
1002 }
1003
1004 INIT_LIST_HEAD(&mp2->list);
1005 } else {
1006 mp2 = NULL;
1007 }
1008
1009 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1010 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1011 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1012 icmd->ulpBdeCount = 1;
1013 cnt--;
1014 if (mp2) {
1015 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1016 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1017 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1018 cnt--;
1019 icmd->ulpBdeCount = 2;
1020 }
1021
1022 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1023 icmd->ulpLe = 1;
1024
1025 spin_lock_irq(phba->host->host_lock);
1026 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
1027 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1028 kfree(mp1);
1029 cnt++;
1030 if (mp2) {
1031 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1032 kfree(mp2);
1033 cnt++;
1034 }
1035 lpfc_sli_release_iocbq(phba, iocb);
1036 pring->missbufcnt = cnt;
1037 spin_unlock_irq(phba->host->host_lock);
1038 return cnt;
1039 }
1040 spin_unlock_irq(phba->host->host_lock);
1041 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1042 if (mp2) {
1043 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1044 }
1045 }
1046 pring->missbufcnt = 0;
1047 return 0;
1048 }
1049
1050 /************************************************************************/
1051 /* */
1052 /* lpfc_post_rcv_buf */
1053 /* This routine post initial rcv buffers to the configured rings */
1054 /* */
1055 /************************************************************************/
1056 static int
1057 lpfc_post_rcv_buf(struct lpfc_hba * phba)
1058 {
1059 struct lpfc_sli *psli = &phba->sli;
1060
1061 /* Ring 0, ELS / CT buffers */
1062 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
1063 /* Ring 2 - FCP no buffers needed */
1064
1065 return 0;
1066 }
1067
1068 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1069
1070 /************************************************************************/
1071 /* */
1072 /* lpfc_sha_init */
1073 /* */
1074 /************************************************************************/
1075 static void
1076 lpfc_sha_init(uint32_t * HashResultPointer)
1077 {
1078 HashResultPointer[0] = 0x67452301;
1079 HashResultPointer[1] = 0xEFCDAB89;
1080 HashResultPointer[2] = 0x98BADCFE;
1081 HashResultPointer[3] = 0x10325476;
1082 HashResultPointer[4] = 0xC3D2E1F0;
1083 }
1084
1085 /************************************************************************/
1086 /* */
1087 /* lpfc_sha_iterate */
1088 /* */
1089 /************************************************************************/
1090 static void
1091 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1092 {
1093 int t;
1094 uint32_t TEMP;
1095 uint32_t A, B, C, D, E;
1096 t = 16;
1097 do {
1098 HashWorkingPointer[t] =
1099 S(1,
1100 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1101 8] ^
1102 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1103 } while (++t <= 79);
1104 t = 0;
1105 A = HashResultPointer[0];
1106 B = HashResultPointer[1];
1107 C = HashResultPointer[2];
1108 D = HashResultPointer[3];
1109 E = HashResultPointer[4];
1110
1111 do {
1112 if (t < 20) {
1113 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1114 } else if (t < 40) {
1115 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1116 } else if (t < 60) {
1117 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1118 } else {
1119 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1120 }
1121 TEMP += S(5, A) + E + HashWorkingPointer[t];
1122 E = D;
1123 D = C;
1124 C = S(30, B);
1125 B = A;
1126 A = TEMP;
1127 } while (++t <= 79);
1128
1129 HashResultPointer[0] += A;
1130 HashResultPointer[1] += B;
1131 HashResultPointer[2] += C;
1132 HashResultPointer[3] += D;
1133 HashResultPointer[4] += E;
1134
1135 }
1136
1137 /************************************************************************/
1138 /* */
1139 /* lpfc_challenge_key */
1140 /* */
1141 /************************************************************************/
1142 static void
1143 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1144 {
1145 *HashWorking = (*RandomChallenge ^ *HashWorking);
1146 }
1147
1148 /************************************************************************/
1149 /* */
1150 /* lpfc_hba_init */
1151 /* */
1152 /************************************************************************/
1153 void
1154 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1155 {
1156 int t;
1157 uint32_t *HashWorking;
1158 uint32_t *pwwnn = phba->wwnn;
1159
1160 HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
1161 if (!HashWorking)
1162 return;
1163
1164 memset(HashWorking, 0, (80 * sizeof(uint32_t)));
1165 HashWorking[0] = HashWorking[78] = *pwwnn++;
1166 HashWorking[1] = HashWorking[79] = *pwwnn;
1167
1168 for (t = 0; t < 7; t++)
1169 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1170
1171 lpfc_sha_init(hbainit);
1172 lpfc_sha_iterate(hbainit, HashWorking);
1173 kfree(HashWorking);
1174 }
1175
1176 static void
1177 lpfc_cleanup(struct lpfc_hba * phba, uint32_t save_bind)
1178 {
1179 struct lpfc_nodelist *ndlp, *next_ndlp;
1180
1181 /* clean up phba - lpfc specific */
1182 lpfc_can_disctmo(phba);
1183 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
1184 nlp_listp) {
1185 lpfc_nlp_remove(phba, ndlp);
1186 }
1187
1188 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1189 nlp_listp) {
1190 lpfc_nlp_remove(phba, ndlp);
1191 }
1192
1193 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
1194 nlp_listp) {
1195 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1196 }
1197
1198 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1199 nlp_listp) {
1200 lpfc_nlp_remove(phba, ndlp);
1201 }
1202
1203 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1204 nlp_listp) {
1205 lpfc_nlp_remove(phba, ndlp);
1206 }
1207
1208 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
1209 nlp_listp) {
1210 lpfc_nlp_remove(phba, ndlp);
1211 }
1212
1213 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1214 nlp_listp) {
1215 lpfc_nlp_remove(phba, ndlp);
1216 }
1217
1218 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1219 nlp_listp) {
1220 lpfc_nlp_remove(phba, ndlp);
1221 }
1222
1223 INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1224 INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1225 INIT_LIST_HEAD(&phba->fc_unused_list);
1226 INIT_LIST_HEAD(&phba->fc_plogi_list);
1227 INIT_LIST_HEAD(&phba->fc_adisc_list);
1228 INIT_LIST_HEAD(&phba->fc_reglogin_list);
1229 INIT_LIST_HEAD(&phba->fc_prli_list);
1230 INIT_LIST_HEAD(&phba->fc_npr_list);
1231
1232 phba->fc_map_cnt = 0;
1233 phba->fc_unmap_cnt = 0;
1234 phba->fc_plogi_cnt = 0;
1235 phba->fc_adisc_cnt = 0;
1236 phba->fc_reglogin_cnt = 0;
1237 phba->fc_prli_cnt = 0;
1238 phba->fc_npr_cnt = 0;
1239 phba->fc_unused_cnt= 0;
1240 return;
1241 }
1242
1243 static void
1244 lpfc_establish_link_tmo(unsigned long ptr)
1245 {
1246 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
1247 unsigned long iflag;
1248
1249
1250 /* Re-establishing Link, timer expired */
1251 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1252 "%d:1300 Re-establishing Link, timer expired "
1253 "Data: x%x x%x\n",
1254 phba->brd_no, phba->fc_flag, phba->hba_state);
1255 spin_lock_irqsave(phba->host->host_lock, iflag);
1256 phba->fc_flag &= ~FC_ESTABLISH_LINK;
1257 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1258 }
1259
1260 static int
1261 lpfc_stop_timer(struct lpfc_hba * phba)
1262 {
1263 struct lpfc_sli *psli = &phba->sli;
1264
1265 /* Instead of a timer, this has been converted to a
1266 * deferred procedding list.
1267 */
1268 while (!list_empty(&phba->freebufList)) {
1269
1270 struct lpfc_dmabuf *mp = NULL;
1271
1272 list_remove_head((&phba->freebufList), mp,
1273 struct lpfc_dmabuf, list);
1274 if (mp) {
1275 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1276 kfree(mp);
1277 }
1278 }
1279
1280 del_timer_sync(&phba->fcp_poll_timer);
1281 del_timer_sync(&phba->fc_estabtmo);
1282 del_timer_sync(&phba->fc_disctmo);
1283 del_timer_sync(&phba->fc_fdmitmo);
1284 del_timer_sync(&phba->els_tmofunc);
1285 psli = &phba->sli;
1286 del_timer_sync(&psli->mbox_tmo);
1287 return(1);
1288 }
1289
1290 int
1291 lpfc_online(struct lpfc_hba * phba)
1292 {
1293 if (!phba)
1294 return 0;
1295
1296 if (!(phba->fc_flag & FC_OFFLINE_MODE))
1297 return 0;
1298
1299 lpfc_printf_log(phba,
1300 KERN_WARNING,
1301 LOG_INIT,
1302 "%d:0458 Bring Adapter online\n",
1303 phba->brd_no);
1304
1305 if (!lpfc_sli_queue_setup(phba))
1306 return 1;
1307
1308 if (lpfc_sli_hba_setup(phba)) /* Initialize the HBA */
1309 return 1;
1310
1311 spin_lock_irq(phba->host->host_lock);
1312 phba->fc_flag &= ~FC_OFFLINE_MODE;
1313 spin_unlock_irq(phba->host->host_lock);
1314
1315 return 0;
1316 }
1317
1318 int
1319 lpfc_offline(struct lpfc_hba * phba)
1320 {
1321 struct lpfc_sli_ring *pring;
1322 struct lpfc_sli *psli;
1323 unsigned long iflag;
1324 int i;
1325 int cnt = 0;
1326
1327 if (!phba)
1328 return 0;
1329
1330 if (phba->fc_flag & FC_OFFLINE_MODE)
1331 return 0;
1332
1333 psli = &phba->sli;
1334
1335 lpfc_linkdown(phba);
1336 lpfc_sli_flush_mbox_queue(phba);
1337
1338 for (i = 0; i < psli->num_rings; i++) {
1339 pring = &psli->ring[i];
1340 /* The linkdown event takes 30 seconds to timeout. */
1341 while (pring->txcmplq_cnt) {
1342 mdelay(10);
1343 if (cnt++ > 3000) {
1344 lpfc_printf_log(phba,
1345 KERN_WARNING, LOG_INIT,
1346 "%d:0466 Outstanding IO when "
1347 "bringing Adapter offline\n",
1348 phba->brd_no);
1349 break;
1350 }
1351 }
1352 }
1353
1354
1355 /* stop all timers associated with this hba */
1356 lpfc_stop_timer(phba);
1357 phba->work_hba_events = 0;
1358 phba->work_ha = 0;
1359
1360 lpfc_printf_log(phba,
1361 KERN_WARNING,
1362 LOG_INIT,
1363 "%d:0460 Bring Adapter offline\n",
1364 phba->brd_no);
1365
1366 /* Bring down the SLI Layer and cleanup. The HBA is offline
1367 now. */
1368 lpfc_sli_hba_down(phba);
1369 lpfc_cleanup(phba, 1);
1370 spin_lock_irqsave(phba->host->host_lock, iflag);
1371 phba->fc_flag |= FC_OFFLINE_MODE;
1372 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1373 return 0;
1374 }
1375
1376 /******************************************************************************
1377 * Function name: lpfc_scsi_free
1378 *
1379 * Description: Called from lpfc_pci_remove_one free internal driver resources
1380 *
1381 ******************************************************************************/
1382 static int
1383 lpfc_scsi_free(struct lpfc_hba * phba)
1384 {
1385 struct lpfc_scsi_buf *sb, *sb_next;
1386 struct lpfc_iocbq *io, *io_next;
1387
1388 spin_lock_irq(phba->host->host_lock);
1389 /* Release all the lpfc_scsi_bufs maintained by this host. */
1390 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
1391 list_del(&sb->list);
1392 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
1393 sb->dma_handle);
1394 kfree(sb);
1395 phba->total_scsi_bufs--;
1396 }
1397
1398 /* Release all the lpfc_iocbq entries maintained by this host. */
1399 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
1400 list_del(&io->list);
1401 kfree(io);
1402 phba->total_iocbq_bufs--;
1403 }
1404
1405 spin_unlock_irq(phba->host->host_lock);
1406
1407 return 0;
1408 }
1409
1410
1411 static int __devinit
1412 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1413 {
1414 struct Scsi_Host *host;
1415 struct lpfc_hba *phba;
1416 struct lpfc_sli *psli;
1417 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
1418 unsigned long bar0map_len, bar2map_len;
1419 int error = -ENODEV, retval;
1420 int i;
1421 uint16_t iotag;
1422
1423 if (pci_enable_device(pdev))
1424 goto out;
1425 if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
1426 goto out_disable_device;
1427
1428 host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba));
1429 if (!host)
1430 goto out_release_regions;
1431
1432 phba = (struct lpfc_hba*)host->hostdata;
1433 memset(phba, 0, sizeof (struct lpfc_hba));
1434 phba->host = host;
1435
1436 phba->fc_flag |= FC_LOADING;
1437 phba->pcidev = pdev;
1438
1439 /* Assign an unused board number */
1440 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
1441 goto out_put_host;
1442
1443 error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
1444 if (error)
1445 goto out_put_host;
1446
1447 host->unique_id = phba->brd_no;
1448 INIT_LIST_HEAD(&phba->ctrspbuflist);
1449 INIT_LIST_HEAD(&phba->rnidrspbuflist);
1450 INIT_LIST_HEAD(&phba->freebufList);
1451
1452 /* Initialize timers used by driver */
1453 init_timer(&phba->fc_estabtmo);
1454 phba->fc_estabtmo.function = lpfc_establish_link_tmo;
1455 phba->fc_estabtmo.data = (unsigned long)phba;
1456 init_timer(&phba->fc_disctmo);
1457 phba->fc_disctmo.function = lpfc_disc_timeout;
1458 phba->fc_disctmo.data = (unsigned long)phba;
1459
1460 init_timer(&phba->fc_fdmitmo);
1461 phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
1462 phba->fc_fdmitmo.data = (unsigned long)phba;
1463 init_timer(&phba->els_tmofunc);
1464 phba->els_tmofunc.function = lpfc_els_timeout;
1465 phba->els_tmofunc.data = (unsigned long)phba;
1466 psli = &phba->sli;
1467 init_timer(&psli->mbox_tmo);
1468 psli->mbox_tmo.function = lpfc_mbox_timeout;
1469 psli->mbox_tmo.data = (unsigned long)phba;
1470
1471 init_timer(&phba->fcp_poll_timer);
1472 phba->fcp_poll_timer.function = lpfc_poll_timeout;
1473 phba->fcp_poll_timer.data = (unsigned long)phba;
1474
1475 /*
1476 * Get all the module params for configuring this host and then
1477 * establish the host parameters.
1478 */
1479 lpfc_get_cfgparam(phba);
1480
1481 host->max_id = LPFC_MAX_TARGET;
1482 host->max_lun = phba->cfg_max_luns;
1483 host->this_id = -1;
1484
1485 /* Initialize all internally managed lists. */
1486 INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1487 INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1488 INIT_LIST_HEAD(&phba->fc_unused_list);
1489 INIT_LIST_HEAD(&phba->fc_plogi_list);
1490 INIT_LIST_HEAD(&phba->fc_adisc_list);
1491 INIT_LIST_HEAD(&phba->fc_reglogin_list);
1492 INIT_LIST_HEAD(&phba->fc_prli_list);
1493 INIT_LIST_HEAD(&phba->fc_npr_list);
1494
1495
1496 pci_set_master(pdev);
1497 retval = pci_set_mwi(pdev);
1498 if (retval)
1499 dev_printk(KERN_WARNING, &pdev->dev,
1500 "Warning: pci_set_mwi returned %d\n", retval);
1501
1502 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
1503 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
1504 goto out_idr_remove;
1505
1506 /*
1507 * Get the bus address of Bar0 and Bar2 and the number of bytes
1508 * required by each mapping.
1509 */
1510 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
1511 bar0map_len = pci_resource_len(phba->pcidev, 0);
1512
1513 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
1514 bar2map_len = pci_resource_len(phba->pcidev, 2);
1515
1516 /* Map HBA SLIM to a kernel virtual address. */
1517 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
1518 if (!phba->slim_memmap_p) {
1519 error = -ENODEV;
1520 dev_printk(KERN_ERR, &pdev->dev,
1521 "ioremap failed for SLIM memory.\n");
1522 goto out_idr_remove;
1523 }
1524
1525 /* Map HBA Control Registers to a kernel virtual address. */
1526 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
1527 if (!phba->ctrl_regs_memmap_p) {
1528 error = -ENODEV;
1529 dev_printk(KERN_ERR, &pdev->dev,
1530 "ioremap failed for HBA control registers.\n");
1531 goto out_iounmap_slim;
1532 }
1533
1534 /* Allocate memory for SLI-2 structures */
1535 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
1536 &phba->slim2p_mapping, GFP_KERNEL);
1537 if (!phba->slim2p)
1538 goto out_iounmap;
1539
1540 memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
1541
1542 /* Initialize the SLI Layer to run with lpfc HBAs. */
1543 lpfc_sli_setup(phba);
1544 lpfc_sli_queue_setup(phba);
1545
1546 error = lpfc_mem_alloc(phba);
1547 if (error)
1548 goto out_free_slim;
1549
1550 /* Initialize and populate the iocb list per host. */
1551 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
1552 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
1553 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
1554 if (iocbq_entry == NULL) {
1555 printk(KERN_ERR "%s: only allocated %d iocbs of "
1556 "expected %d count. Unloading driver.\n",
1557 __FUNCTION__, i, LPFC_IOCB_LIST_CNT);
1558 error = -ENOMEM;
1559 goto out_free_iocbq;
1560 }
1561
1562 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
1563 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
1564 if (iotag == 0) {
1565 kfree (iocbq_entry);
1566 printk(KERN_ERR "%s: failed to allocate IOTAG. "
1567 "Unloading driver.\n",
1568 __FUNCTION__);
1569 error = -ENOMEM;
1570 goto out_free_iocbq;
1571 }
1572 spin_lock_irq(phba->host->host_lock);
1573 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
1574 phba->total_iocbq_bufs++;
1575 spin_unlock_irq(phba->host->host_lock);
1576 }
1577
1578 /* Initialize HBA structure */
1579 phba->fc_edtov = FF_DEF_EDTOV;
1580 phba->fc_ratov = FF_DEF_RATOV;
1581 phba->fc_altov = FF_DEF_ALTOV;
1582 phba->fc_arbtov = FF_DEF_ARBTOV;
1583
1584 INIT_LIST_HEAD(&phba->work_list);
1585 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
1586 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
1587
1588 /* Startup the kernel thread for this host adapter. */
1589 phba->worker_thread = kthread_run(lpfc_do_work, phba,
1590 "lpfc_worker_%d", phba->brd_no);
1591 if (IS_ERR(phba->worker_thread)) {
1592 error = PTR_ERR(phba->worker_thread);
1593 goto out_free_iocbq;
1594 }
1595
1596 /*
1597 * Set initial can_queue value since 0 is no longer supported and
1598 * scsi_add_host will fail. This will be adjusted later based on the
1599 * max xri value determined in hba setup.
1600 */
1601 host->can_queue = phba->cfg_hba_queue_depth - 10;
1602
1603 /* Tell the midlayer we support 16 byte commands */
1604 host->max_cmd_len = 16;
1605
1606 /* Initialize the list of scsi buffers used by driver for scsi IO. */
1607 spin_lock_init(&phba->scsi_buf_list_lock);
1608 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
1609
1610 host->transportt = lpfc_transport_template;
1611 pci_set_drvdata(pdev, host);
1612 error = scsi_add_host(host, &pdev->dev);
1613 if (error)
1614 goto out_kthread_stop;
1615
1616 error = lpfc_alloc_sysfs_attr(phba);
1617 if (error)
1618 goto out_remove_host;
1619
1620 if (phba->cfg_use_msi) {
1621 error = pci_enable_msi(phba->pcidev);
1622 if (error)
1623 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
1624 "Enable MSI failed, continuing with "
1625 "IRQ\n", phba->brd_no);
1626 }
1627
1628 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
1629 LPFC_DRIVER_NAME, phba);
1630 if (error) {
1631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1632 "%d:0451 Enable interrupt handler failed\n",
1633 phba->brd_no);
1634 goto out_free_sysfs_attr;
1635 }
1636 phba->MBslimaddr = phba->slim_memmap_p;
1637 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
1638 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
1639 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
1640 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
1641
1642 error = lpfc_sli_hba_setup(phba);
1643 if (error) {
1644 error = -ENODEV;
1645 goto out_free_irq;
1646 }
1647
1648 /*
1649 * hba setup may have changed the hba_queue_depth so we need to adjust
1650 * the value of can_queue.
1651 */
1652 host->can_queue = phba->cfg_hba_queue_depth - 10;
1653
1654 lpfc_discovery_wait(phba);
1655
1656 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
1657 spin_lock_irq(phba->host->host_lock);
1658 lpfc_poll_start_timer(phba);
1659 spin_unlock_irq(phba->host->host_lock);
1660 }
1661
1662 /*
1663 * set fixed host attributes
1664 * Must done after lpfc_sli_hba_setup()
1665 */
1666
1667 fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
1668 fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
1669 fc_host_supported_classes(host) = FC_COS_CLASS3;
1670
1671 memset(fc_host_supported_fc4s(host), 0,
1672 sizeof(fc_host_supported_fc4s(host)));
1673 fc_host_supported_fc4s(host)[2] = 1;
1674 fc_host_supported_fc4s(host)[7] = 1;
1675
1676 lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));
1677
1678 fc_host_supported_speeds(host) = 0;
1679 if (phba->lmt & LMT_10Gb)
1680 fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
1681 if (phba->lmt & LMT_4Gb)
1682 fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
1683 if (phba->lmt & LMT_2Gb)
1684 fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
1685 if (phba->lmt & LMT_1Gb)
1686 fc_host_supported_speeds(host) |= FC_PORTSPEED_1GBIT;
1687
1688 fc_host_maxframe_size(host) =
1689 ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
1690 (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);
1691
1692 /* This value is also unchanging */
1693 memset(fc_host_active_fc4s(host), 0,
1694 sizeof(fc_host_active_fc4s(host)));
1695 fc_host_active_fc4s(host)[2] = 1;
1696 fc_host_active_fc4s(host)[7] = 1;
1697
1698 spin_lock_irq(phba->host->host_lock);
1699 phba->fc_flag &= ~FC_LOADING;
1700 spin_unlock_irq(phba->host->host_lock);
1701 return 0;
1702
1703 out_free_irq:
1704 lpfc_stop_timer(phba);
1705 phba->work_hba_events = 0;
1706 free_irq(phba->pcidev->irq, phba);
1707 pci_disable_msi(phba->pcidev);
1708 out_free_sysfs_attr:
1709 lpfc_free_sysfs_attr(phba);
1710 out_remove_host:
1711 fc_remove_host(phba->host);
1712 scsi_remove_host(phba->host);
1713 out_kthread_stop:
1714 kthread_stop(phba->worker_thread);
1715 out_free_iocbq:
1716 list_for_each_entry_safe(iocbq_entry, iocbq_next,
1717 &phba->lpfc_iocb_list, list) {
1718 spin_lock_irq(phba->host->host_lock);
1719 kfree(iocbq_entry);
1720 phba->total_iocbq_bufs--;
1721 spin_unlock_irq(phba->host->host_lock);
1722 }
1723 lpfc_mem_free(phba);
1724 out_free_slim:
1725 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
1726 phba->slim2p_mapping);
1727 out_iounmap:
1728 iounmap(phba->ctrl_regs_memmap_p);
1729 out_iounmap_slim:
1730 iounmap(phba->slim_memmap_p);
1731 out_idr_remove:
1732 idr_remove(&lpfc_hba_index, phba->brd_no);
1733 out_put_host:
1734 phba->host = NULL;
1735 scsi_host_put(host);
1736 out_release_regions:
1737 pci_release_regions(pdev);
1738 out_disable_device:
1739 pci_disable_device(pdev);
1740 out:
1741 pci_set_drvdata(pdev, NULL);
1742 return error;
1743 }
1744
1745 static void __devexit
1746 lpfc_pci_remove_one(struct pci_dev *pdev)
1747 {
1748 struct Scsi_Host *host = pci_get_drvdata(pdev);
1749 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1750 unsigned long iflag;
1751
1752 lpfc_free_sysfs_attr(phba);
1753
1754 spin_lock_irqsave(phba->host->host_lock, iflag);
1755 phba->fc_flag |= FC_UNLOADING;
1756
1757 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1758
1759 fc_remove_host(phba->host);
1760 scsi_remove_host(phba->host);
1761
1762 kthread_stop(phba->worker_thread);
1763
1764 /*
1765 * Bring down the SLI Layer. This step disable all interrupts,
1766 * clears the rings, discards all mailbox commands, and resets
1767 * the HBA.
1768 */
1769 lpfc_sli_hba_down(phba);
1770 lpfc_sli_brdrestart(phba);
1771
1772 /* Release the irq reservation */
1773 free_irq(phba->pcidev->irq, phba);
1774 pci_disable_msi(phba->pcidev);
1775
1776 lpfc_cleanup(phba, 0);
1777 lpfc_stop_timer(phba);
1778 phba->work_hba_events = 0;
1779
1780 /*
1781 * Call scsi_free before mem_free since scsi bufs are released to their
1782 * corresponding pools here.
1783 */
1784 lpfc_scsi_free(phba);
1785 lpfc_mem_free(phba);
1786
1787 /* Free resources associated with SLI2 interface */
1788 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
1789 phba->slim2p, phba->slim2p_mapping);
1790
1791 /* unmap adapter SLIM and Control Registers */
1792 iounmap(phba->ctrl_regs_memmap_p);
1793 iounmap(phba->slim_memmap_p);
1794
1795 pci_release_regions(phba->pcidev);
1796 pci_disable_device(phba->pcidev);
1797
1798 idr_remove(&lpfc_hba_index, phba->brd_no);
1799 scsi_host_put(phba->host);
1800
1801 pci_set_drvdata(pdev, NULL);
1802 }
1803
1804 /**
1805 * lpfc_io_error_detected - called when PCI error is detected
1806 * @pdev: Pointer to PCI device
1807 * @state: The current pci conneection state
1808 *
1809 * This function is called after a PCI bus error affecting
1810 * this device has been detected.
1811 */
1812 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
1813 pci_channel_state_t state)
1814 {
1815 struct Scsi_Host *host = pci_get_drvdata(pdev);
1816 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1817 struct lpfc_sli *psli = &phba->sli;
1818 struct lpfc_sli_ring *pring;
1819
1820 if (state == pci_channel_io_perm_failure)
1821 return PCI_ERS_RESULT_DISCONNECT;
1822
1823 pci_disable_device(pdev);
1824 /*
1825 * There may be I/Os dropped by the firmware.
1826 * Error iocb (I/O) on txcmplq and let the SCSI layer
1827 * retry it after re-establishing link.
1828 */
1829 pring = &psli->ring[psli->fcp_ring];
1830 lpfc_sli_abort_iocb_ring(phba, pring);
1831
1832 /* Request a slot reset. */
1833 return PCI_ERS_RESULT_NEED_RESET;
1834 }
1835
1836 /**
1837 * lpfc_io_slot_reset - called after the pci bus has been reset.
1838 * @pdev: Pointer to PCI device
1839 *
1840 * Restart the card from scratch, as if from a cold-boot.
1841 */
1842 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
1843 {
1844 struct Scsi_Host *host = pci_get_drvdata(pdev);
1845 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1846 struct lpfc_sli *psli = &phba->sli;
1847 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
1848
1849 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
1850 if (pci_enable_device_bars(pdev, bars)) {
1851 printk(KERN_ERR "lpfc: Cannot re-enable "
1852 "PCI device after reset.\n");
1853 return PCI_ERS_RESULT_DISCONNECT;
1854 }
1855
1856 pci_set_master(pdev);
1857
1858 /* Re-establishing Link */
1859 spin_lock_irq(phba->host->host_lock);
1860 phba->fc_flag |= FC_ESTABLISH_LINK;
1861 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
1862 spin_unlock_irq(phba->host->host_lock);
1863
1864
1865 /* Take device offline; this will perform cleanup */
1866 lpfc_offline(phba);
1867 lpfc_sli_brdrestart(phba);
1868
1869 return PCI_ERS_RESULT_RECOVERED;
1870 }
1871
1872 /**
1873 * lpfc_io_resume - called when traffic can start flowing again.
1874 * @pdev: Pointer to PCI device
1875 *
1876 * This callback is called when the error recovery driver tells us that
1877 * its OK to resume normal operation.
1878 */
1879 static void lpfc_io_resume(struct pci_dev *pdev)
1880 {
1881 struct Scsi_Host *host = pci_get_drvdata(pdev);
1882 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1883
1884 if (lpfc_online(phba) == 0) {
1885 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
1886 }
1887 }
1888
1889 static struct pci_device_id lpfc_id_table[] = {
1890 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
1891 PCI_ANY_ID, PCI_ANY_ID, },
1892 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
1893 PCI_ANY_ID, PCI_ANY_ID, },
1894 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
1895 PCI_ANY_ID, PCI_ANY_ID, },
1896 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
1897 PCI_ANY_ID, PCI_ANY_ID, },
1898 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
1899 PCI_ANY_ID, PCI_ANY_ID, },
1900 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
1901 PCI_ANY_ID, PCI_ANY_ID, },
1902 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
1903 PCI_ANY_ID, PCI_ANY_ID, },
1904 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
1905 PCI_ANY_ID, PCI_ANY_ID, },
1906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
1907 PCI_ANY_ID, PCI_ANY_ID, },
1908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
1909 PCI_ANY_ID, PCI_ANY_ID, },
1910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
1911 PCI_ANY_ID, PCI_ANY_ID, },
1912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
1913 PCI_ANY_ID, PCI_ANY_ID, },
1914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
1915 PCI_ANY_ID, PCI_ANY_ID, },
1916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
1917 PCI_ANY_ID, PCI_ANY_ID, },
1918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
1919 PCI_ANY_ID, PCI_ANY_ID, },
1920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
1921 PCI_ANY_ID, PCI_ANY_ID, },
1922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
1923 PCI_ANY_ID, PCI_ANY_ID, },
1924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
1925 PCI_ANY_ID, PCI_ANY_ID, },
1926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
1927 PCI_ANY_ID, PCI_ANY_ID, },
1928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
1929 PCI_ANY_ID, PCI_ANY_ID, },
1930 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
1931 PCI_ANY_ID, PCI_ANY_ID, },
1932 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
1933 PCI_ANY_ID, PCI_ANY_ID, },
1934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
1935 PCI_ANY_ID, PCI_ANY_ID, },
1936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
1937 PCI_ANY_ID, PCI_ANY_ID, },
1938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
1939 PCI_ANY_ID, PCI_ANY_ID, },
1940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
1941 PCI_ANY_ID, PCI_ANY_ID, },
1942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
1943 PCI_ANY_ID, PCI_ANY_ID, },
1944 { 0 }
1945 };
1946
1947 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
1948
1949 static struct pci_error_handlers lpfc_err_handler = {
1950 .error_detected = lpfc_io_error_detected,
1951 .slot_reset = lpfc_io_slot_reset,
1952 .resume = lpfc_io_resume,
1953 };
1954
1955 static struct pci_driver lpfc_driver = {
1956 .name = LPFC_DRIVER_NAME,
1957 .id_table = lpfc_id_table,
1958 .probe = lpfc_pci_probe_one,
1959 .remove = __devexit_p(lpfc_pci_remove_one),
1960 .err_handler = &lpfc_err_handler,
1961 };
1962
1963 static int __init
1964 lpfc_init(void)
1965 {
1966 int error = 0;
1967
1968 printk(LPFC_MODULE_DESC "\n");
1969 printk(LPFC_COPYRIGHT "\n");
1970
1971 lpfc_transport_template =
1972 fc_attach_transport(&lpfc_transport_functions);
1973 if (!lpfc_transport_template)
1974 return -ENOMEM;
1975 error = pci_register_driver(&lpfc_driver);
1976 if (error)
1977 fc_release_transport(lpfc_transport_template);
1978
1979 return error;
1980 }
1981
1982 static void __exit
1983 lpfc_exit(void)
1984 {
1985 pci_unregister_driver(&lpfc_driver);
1986 fc_release_transport(lpfc_transport_template);
1987 }
1988
1989 module_init(lpfc_init);
1990 module_exit(lpfc_exit);
1991 MODULE_LICENSE("GPL");
1992 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
1993 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
1994 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
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