?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / scsi / lpfc / lpfc_init.c
blob233c912b63ce0fbf539467e47de1314883b0e2ef
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Enterprise Fibre Channel Host Bus Adapters. *
4 * Refer to the README file included with this package for *
5 * driver version and adapter support. *
6 * Copyright (C) 2004 Emulex Corporation. *
7 * www.emulex.com *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of the GNU General Public License *
11 * as published by the Free Software Foundation; either version 2 *
12 * of the License, or (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details, a copy of which *
18 * can be found in the file COPYING included with this package. *
19 *******************************************************************/
20
21 /*
22 * $Id: lpfc_init.c 1.233 2005/04/13 11:59:09EDT sf_support Exp $
23 */
24
25 #include <linux/blkdev.h>
26 #include <linux/delay.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/idr.h>
29 #include <linux/interrupt.h>
30 #include <linux/kthread.h>
31 #include <linux/pci.h>
32 #include <linux/spinlock.h>
33
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.h>
37
38 #include "lpfc_hw.h"
39 #include "lpfc_sli.h"
40 #include "lpfc_disc.h"
41 #include "lpfc_scsi.h"
42 #include "lpfc.h"
43 #include "lpfc_logmsg.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_version.h"
46
47 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *);
48 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
49 static int lpfc_post_rcv_buf(struct lpfc_hba *);
50
51 static struct scsi_transport_template *lpfc_transport_template = NULL;
52 static DEFINE_IDR(lpfc_hba_index);
53
54 /************************************************************************/
55 /* */
56 /* lpfc_config_port_prep */
57 /* This routine will do LPFC initialization prior to the */
58 /* CONFIG_PORT mailbox command. This will be initialized */
59 /* as a SLI layer callback routine. */
60 /* This routine returns 0 on success or -ERESTART if it wants */
61 /* the SLI layer to reset the HBA and try again. Any */
62 /* other return value indicates an error. */
63 /* */
64 /************************************************************************/
65 int
66 lpfc_config_port_prep(struct lpfc_hba * phba)
67 {
68 lpfc_vpd_t *vp = &phba->vpd;
69 int i = 0, rc;
70 LPFC_MBOXQ_t *pmb;
71 MAILBOX_t *mb;
72 char *lpfc_vpd_data = NULL;
73 uint16_t offset = 0;
74 static char licensed[56] =
75 "key unlock for use with gnu public licensed code only\0";
76
77 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
78 if (!pmb) {
79 phba->hba_state = LPFC_HBA_ERROR;
80 return -ENOMEM;
81 }
82
83 mb = &pmb->mb;
84 phba->hba_state = LPFC_INIT_MBX_CMDS;
85
86 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
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
92 lpfc_read_nv(phba, pmb);
93 memset((char*)mb->un.varRDnvp.rsvd3, 0,
94 sizeof (mb->un.varRDnvp.rsvd3));
95 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
96 sizeof (licensed));
97
98 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
99
100 if (rc != MBX_SUCCESS) {
101 lpfc_printf_log(phba,
102 KERN_ERR,
103 LOG_MBOX,
104 "%d:0324 Config Port initialization "
105 "error, mbxCmd x%x READ_NVPARM, "
106 "mbxStatus x%x\n",
107 phba->brd_no,
108 mb->mbxCommand, mb->mbxStatus);
109 mempool_free(pmb, phba->mbox_mem_pool);
110 return -ERESTART;
111 }
112 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
113 sizeof (mb->un.varRDnvp.nodename));
114 }
115
116 /* Setup and issue mailbox READ REV command */
117 lpfc_read_rev(phba, pmb);
118 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
119 if (rc != MBX_SUCCESS) {
120 lpfc_printf_log(phba,
121 KERN_ERR,
122 LOG_INIT,
123 "%d:0439 Adapter failed to init, mbxCmd x%x "
124 "READ_REV, mbxStatus x%x\n",
125 phba->brd_no,
126 mb->mbxCommand, mb->mbxStatus);
127 mempool_free( pmb, phba->mbox_mem_pool);
128 return -ERESTART;
129 }
130
131 /* The HBA's current state is provided by the ProgType and rr fields.
132 * Read and check the value of these fields before continuing to config
133 * this port.
134 */
135 if (mb->un.varRdRev.rr == 0 || mb->un.varRdRev.un.b.ProgType != 2) {
136 /* Old firmware */
137 vp->rev.rBit = 0;
138 lpfc_printf_log(phba,
139 KERN_ERR,
140 LOG_INIT,
141 "%d:0440 Adapter failed to init, mbxCmd x%x "
142 "READ_REV detected outdated firmware"
143 "Data: x%x\n",
144 phba->brd_no,
145 mb->mbxCommand, 0);
146 mempool_free(pmb, phba->mbox_mem_pool);
147 return -ERESTART;
148 } else {
149 vp->rev.rBit = 1;
150 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
151 memcpy(vp->rev.sli1FwName,
152 (char*)mb->un.varRdRev.sli1FwName, 16);
153 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
154 memcpy(vp->rev.sli2FwName,
155 (char *)mb->un.varRdRev.sli2FwName, 16);
156 }
157
158 /* Save information as VPD data */
159 vp->rev.biuRev = mb->un.varRdRev.biuRev;
160 vp->rev.smRev = mb->un.varRdRev.smRev;
161 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
162 vp->rev.endecRev = mb->un.varRdRev.endecRev;
163 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
164 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
165 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
166 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
167 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
168 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
169
170 if (lpfc_is_LC_HBA(phba->pcidev->device))
171 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
172 sizeof (phba->RandomData));
173
174 /* Get the default values for Model Name and Description */
175 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
176
177 /* Get adapter VPD information */
178 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
179 if (!pmb->context2)
180 goto out_free_mbox;
181 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
182 if (!lpfc_vpd_data)
183 goto out_free_context2;
184
185 do {
186 lpfc_dump_mem(phba, pmb, offset);
187 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
188
189 if (rc != MBX_SUCCESS) {
190 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
191 "%d:0441 VPD not present on adapter, "
192 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
193 phba->brd_no,
194 mb->mbxCommand, mb->mbxStatus);
195 kfree(lpfc_vpd_data);
196 lpfc_vpd_data = NULL;
197 break;
198 }
199
200 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset,
201 mb->un.varDmp.word_cnt);
202 offset += mb->un.varDmp.word_cnt;
203 } while (mb->un.varDmp.word_cnt);
204 lpfc_parse_vpd(phba, lpfc_vpd_data);
205
206 kfree(lpfc_vpd_data);
207 out_free_context2:
208 kfree(pmb->context2);
209 out_free_mbox:
210 mempool_free(pmb, phba->mbox_mem_pool);
211 return 0;
212 }
213
214 /************************************************************************/
215 /* */
216 /* lpfc_config_port_post */
217 /* This routine will do LPFC initialization after the */
218 /* CONFIG_PORT mailbox command. This will be initialized */
219 /* as a SLI layer callback routine. */
220 /* This routine returns 0 on success. Any other return value */
221 /* indicates an error. */
222 /* */
223 /************************************************************************/
224 int
225 lpfc_config_port_post(struct lpfc_hba * phba)
226 {
227 LPFC_MBOXQ_t *pmb;
228 MAILBOX_t *mb;
229 struct lpfc_dmabuf *mp;
230 struct lpfc_sli *psli = &phba->sli;
231 uint32_t status, timeout;
232 int i, j, rc;
233
234 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
235 if (!pmb) {
236 phba->hba_state = LPFC_HBA_ERROR;
237 return -ENOMEM;
238 }
239 mb = &pmb->mb;
240
241 lpfc_config_link(phba, pmb);
242 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
243 if (rc != MBX_SUCCESS) {
244 lpfc_printf_log(phba,
245 KERN_ERR,
246 LOG_INIT,
247 "%d:0447 Adapter failed init, mbxCmd x%x "
248 "CONFIG_LINK mbxStatus x%x\n",
249 phba->brd_no,
250 mb->mbxCommand, mb->mbxStatus);
251 phba->hba_state = LPFC_HBA_ERROR;
252 mempool_free( pmb, phba->mbox_mem_pool);
253 return -EIO;
254 }
255
256 /* Get login parameters for NID. */
257 lpfc_read_sparam(phba, pmb);
258 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
259 lpfc_printf_log(phba,
260 KERN_ERR,
261 LOG_INIT,
262 "%d:0448 Adapter failed init, mbxCmd x%x "
263 "READ_SPARM mbxStatus x%x\n",
264 phba->brd_no,
265 mb->mbxCommand, mb->mbxStatus);
266 phba->hba_state = LPFC_HBA_ERROR;
267 mp = (struct lpfc_dmabuf *) pmb->context1;
268 mempool_free( pmb, phba->mbox_mem_pool);
269 lpfc_mbuf_free(phba, mp->virt, mp->phys);
270 kfree(mp);
271 return -EIO;
272 }
273
274 mp = (struct lpfc_dmabuf *) pmb->context1;
275
276 memcpy(&phba->fc_sparam, mp->virt, sizeof (struct serv_parm));
277 lpfc_mbuf_free(phba, mp->virt, mp->phys);
278 kfree(mp);
279 pmb->context1 = NULL;
280
281 memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
282 sizeof (struct lpfc_name));
283 memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
284 sizeof (struct lpfc_name));
285 /* If no serial number in VPD data, use low 6 bytes of WWNN */
286 /* This should be consolidated into parse_vpd ? - mr */
287 if (phba->SerialNumber[0] == 0) {
288 uint8_t *outptr;
289
290 outptr = (uint8_t *) & phba->fc_nodename.IEEE[0];
291 for (i = 0; i < 12; i++) {
292 status = *outptr++;
293 j = ((status & 0xf0) >> 4);
294 if (j <= 9)
295 phba->SerialNumber[i] =
296 (char)((uint8_t) 0x30 + (uint8_t) j);
297 else
298 phba->SerialNumber[i] =
299 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
300 i++;
301 j = (status & 0xf);
302 if (j <= 9)
303 phba->SerialNumber[i] =
304 (char)((uint8_t) 0x30 + (uint8_t) j);
305 else
306 phba->SerialNumber[i] =
307 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
308 }
309 }
310
311 /* This should turn on DELAYED ABTS for ELS timeouts */
312 lpfc_set_slim(phba, pmb, 0x052198, 0x1);
313 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
314 phba->hba_state = LPFC_HBA_ERROR;
315 mempool_free( pmb, phba->mbox_mem_pool);
316 return -EIO;
317 }
318
319
320 lpfc_read_config(phba, pmb);
321 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
322 lpfc_printf_log(phba,
323 KERN_ERR,
324 LOG_INIT,
325 "%d:0453 Adapter failed to init, mbxCmd x%x "
326 "READ_CONFIG, mbxStatus x%x\n",
327 phba->brd_no,
328 mb->mbxCommand, mb->mbxStatus);
329 phba->hba_state = LPFC_HBA_ERROR;
330 mempool_free( pmb, phba->mbox_mem_pool);
331 return -EIO;
332 }
333
334 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
335 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
336 phba->cfg_hba_queue_depth =
337 mb->un.varRdConfig.max_xri + 1;
338
339 phba->lmt = mb->un.varRdConfig.lmt;
340 /* HBA is not 4GB capable, or HBA is not 2GB capable,
341 don't let link speed ask for it */
342 if ((((phba->lmt & LMT_4250_10bit) != LMT_4250_10bit) &&
343 (phba->cfg_link_speed > LINK_SPEED_2G)) ||
344 (((phba->lmt & LMT_2125_10bit) != LMT_2125_10bit) &&
345 (phba->cfg_link_speed > LINK_SPEED_1G))) {
346 /* Reset link speed to auto. 1G/2GB HBA cfg'd for 4G */
347 lpfc_printf_log(phba,
348 KERN_WARNING,
349 LOG_LINK_EVENT,
350 "%d:1302 Invalid speed for this board: "
351 "Reset link speed to auto: x%x\n",
352 phba->brd_no,
353 phba->cfg_link_speed);
354 phba->cfg_link_speed = LINK_SPEED_AUTO;
355 }
356
357 phba->hba_state = LPFC_LINK_DOWN;
358
359 /* Only process IOCBs on ring 0 till hba_state is READY */
360 if (psli->ring[psli->ip_ring].cmdringaddr)
361 psli->ring[psli->ip_ring].flag |= LPFC_STOP_IOCB_EVENT;
362 if (psli->ring[psli->fcp_ring].cmdringaddr)
363 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
364 if (psli->ring[psli->next_ring].cmdringaddr)
365 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
366
367 /* Post receive buffers for desired rings */
368 lpfc_post_rcv_buf(phba);
369
370 /* Enable appropriate host interrupts */
371 spin_lock_irq(phba->host->host_lock);
372 status = readl(phba->HCregaddr);
373 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
374 if (psli->num_rings > 0)
375 status |= HC_R0INT_ENA;
376 if (psli->num_rings > 1)
377 status |= HC_R1INT_ENA;
378 if (psli->num_rings > 2)
379 status |= HC_R2INT_ENA;
380 if (psli->num_rings > 3)
381 status |= HC_R3INT_ENA;
382
383 writel(status, phba->HCregaddr);
384 readl(phba->HCregaddr); /* flush */
385 spin_unlock_irq(phba->host->host_lock);
386
387 /*
388 * Setup the ring 0 (els) timeout handler
389 */
390 timeout = phba->fc_ratov << 1;
391 phba->els_tmofunc.expires = jiffies + HZ * timeout;
392 add_timer(&phba->els_tmofunc);
393
394 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
395 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
396 if (lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT) != MBX_SUCCESS) {
397 lpfc_printf_log(phba,
398 KERN_ERR,
399 LOG_INIT,
400 "%d:0454 Adapter failed to init, mbxCmd x%x "
401 "INIT_LINK, mbxStatus x%x\n",
402 phba->brd_no,
403 mb->mbxCommand, mb->mbxStatus);
404
405 /* Clear all interrupt enable conditions */
406 writel(0, phba->HCregaddr);
407 readl(phba->HCregaddr); /* flush */
408 /* Clear all pending interrupts */
409 writel(0xffffffff, phba->HAregaddr);
410 readl(phba->HAregaddr); /* flush */
411
412 phba->hba_state = LPFC_HBA_ERROR;
413 mempool_free(pmb, phba->mbox_mem_pool);
414 return -EIO;
415 }
416 /* MBOX buffer will be freed in mbox compl */
417
418 i = 0;
419 while ((phba->hba_state != LPFC_HBA_READY) ||
420 (phba->num_disc_nodes) || (phba->fc_prli_sent) ||
421 ((phba->fc_map_cnt == 0) && (i<2)) ||
422 (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
423 /* Check every second for 30 retries. */
424 i++;
425 if (i > 30) {
426 break;
427 }
428 if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
429 /* The link is down. Set linkdown timeout */
430 break;
431 }
432
433 /* Delay for 1 second to give discovery time to complete. */
434 msleep(1000);
435
436 }
437
438 /* Since num_disc_nodes keys off of PLOGI, delay a bit to let
439 * any potential PRLIs to flush thru the SLI sub-system.
440 */
441 msleep(50);
442
443 return (0);
444 }
445
446 /************************************************************************/
447 /* */
448 /* lpfc_hba_down_prep */
449 /* This routine will do LPFC uninitialization before the */
450 /* HBA is reset when bringing down the SLI Layer. This will be */
451 /* initialized as a SLI layer callback routine. */
452 /* This routine returns 0 on success. Any other return value */
453 /* indicates an error. */
454 /* */
455 /************************************************************************/
456 int
457 lpfc_hba_down_prep(struct lpfc_hba * phba)
458 {
459 /* Disable interrupts */
460 writel(0, phba->HCregaddr);
461 readl(phba->HCregaddr); /* flush */
462
463 /* Cleanup potential discovery resources */
464 lpfc_els_flush_rscn(phba);
465 lpfc_els_flush_cmd(phba);
466 lpfc_disc_flush_list(phba);
467
468 return (0);
469 }
470
471 /************************************************************************/
472 /* */
473 /* lpfc_handle_eratt */
474 /* This routine will handle processing a Host Attention */
475 /* Error Status event. This will be initialized */
476 /* as a SLI layer callback routine. */
477 /* */
478 /************************************************************************/
479 void
480 lpfc_handle_eratt(struct lpfc_hba * phba)
481 {
482 struct lpfc_sli *psli = &phba->sli;
483 struct lpfc_sli_ring *pring;
484
485 /*
486 * If a reset is sent to the HBA restore PCI configuration registers.
487 */
488 if ( phba->hba_state == LPFC_INIT_START ) {
489 mdelay(1);
490 readl(phba->HCregaddr); /* flush */
491 writel(0, phba->HCregaddr);
492 readl(phba->HCregaddr); /* flush */
493
494 /* Restore PCI cmd register */
495 pci_write_config_word(phba->pcidev,
496 PCI_COMMAND, phba->pci_cfg_value);
497 }
498
499 if (phba->work_hs & HS_FFER6) {
500 /* Re-establishing Link */
501 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
502 "%d:1301 Re-establishing Link "
503 "Data: x%x x%x x%x\n",
504 phba->brd_no, phba->work_hs,
505 phba->work_status[0], phba->work_status[1]);
506 spin_lock_irq(phba->host->host_lock);
507 phba->fc_flag |= FC_ESTABLISH_LINK;
508 spin_unlock_irq(phba->host->host_lock);
509
510 /*
511 * Firmware stops when it triggled erratt with HS_FFER6.
512 * That could cause the I/Os dropped by the firmware.
513 * Error iocb (I/O) on txcmplq and let the SCSI layer
514 * retry it after re-establishing link.
515 */
516 pring = &psli->ring[psli->fcp_ring];
517 lpfc_sli_abort_iocb_ring(phba, pring);
518
519
520 /*
521 * There was a firmware error. Take the hba offline and then
522 * attempt to restart it.
523 */
524 lpfc_offline(phba);
525 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
526 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
527 return;
528 }
529 } else {
530 /* The if clause above forces this code path when the status
531 * failure is a value other than FFER6. Do not call the offline
532 * twice. This is the adapter hardware error path.
533 */
534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
535 "%d:0457 Adapter Hardware Error "
536 "Data: x%x x%x x%x\n",
537 phba->brd_no, phba->work_hs,
538 phba->work_status[0], phba->work_status[1]);
539
540 lpfc_offline(phba);
541
542 /*
543 * Restart all traffic to this host. Since the fc_transport
544 * block functions (future) were not called in lpfc_offline,
545 * don't call them here.
546 */
547 scsi_unblock_requests(phba->host);
548 }
549 }
550
551 /************************************************************************/
552 /* */
553 /* lpfc_handle_latt */
554 /* This routine will handle processing a Host Attention */
555 /* Link Status event. This will be initialized */
556 /* as a SLI layer callback routine. */
557 /* */
558 /************************************************************************/
559 void
560 lpfc_handle_latt(struct lpfc_hba * phba)
561 {
562 struct lpfc_sli *psli = &phba->sli;
563 LPFC_MBOXQ_t *pmb;
564 volatile uint32_t control;
565 struct lpfc_dmabuf *mp;
566 int rc = -ENOMEM;
567
568 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
569 if (!pmb)
570 goto lpfc_handle_latt_err_exit;
571
572 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
573 if (!mp)
574 goto lpfc_handle_latt_free_pmb;
575
576 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
577 if (!mp->virt)
578 goto lpfc_handle_latt_free_mp;
579
580 rc = -EIO;
581
582
583 psli->slistat.link_event++;
584 lpfc_read_la(phba, pmb, mp);
585 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
586 rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
587 if (rc == MBX_NOT_FINISHED)
588 goto lpfc_handle_latt_free_mp;
589
590 /* Clear Link Attention in HA REG */
591 spin_lock_irq(phba->host->host_lock);
592 writel(HA_LATT, phba->HAregaddr);
593 readl(phba->HAregaddr); /* flush */
594 spin_unlock_irq(phba->host->host_lock);
595
596 return;
597
598 lpfc_handle_latt_free_mp:
599 kfree(mp);
600 lpfc_handle_latt_free_pmb:
601 kfree(pmb);
602 lpfc_handle_latt_err_exit:
603 /* Enable Link attention interrupts */
604 spin_lock_irq(phba->host->host_lock);
605 psli->sli_flag |= LPFC_PROCESS_LA;
606 control = readl(phba->HCregaddr);
607 control |= HC_LAINT_ENA;
608 writel(control, phba->HCregaddr);
609 readl(phba->HCregaddr); /* flush */
610
611 /* Clear Link Attention in HA REG */
612 writel(HA_LATT, phba->HAregaddr);
613 readl(phba->HAregaddr); /* flush */
614 spin_unlock_irq(phba->host->host_lock);
615 lpfc_linkdown(phba);
616 phba->hba_state = LPFC_HBA_ERROR;
617
618 /* The other case is an error from issue_mbox */
619 if (rc == -ENOMEM)
620 lpfc_printf_log(phba,
621 KERN_WARNING,
622 LOG_MBOX,
623 "%d:0300 READ_LA: no buffers\n",
624 phba->brd_no);
625
626 return;
627 }
628
629 /************************************************************************/
630 /* */
631 /* lpfc_parse_vpd */
632 /* This routine will parse the VPD data */
633 /* */
634 /************************************************************************/
635 static int
636 lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd)
637 {
638 uint8_t lenlo, lenhi;
639 uint32_t Length;
640 int i, j;
641 int finished = 0;
642 int index = 0;
643
644 if (!vpd)
645 return 0;
646
647 /* Vital Product */
648 lpfc_printf_log(phba,
649 KERN_INFO,
650 LOG_INIT,
651 "%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
652 phba->brd_no,
653 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
654 (uint32_t) vpd[3]);
655 do {
656 switch (vpd[index]) {
657 case 0x82:
658 index += 1;
659 lenlo = vpd[index];
660 index += 1;
661 lenhi = vpd[index];
662 index += 1;
663 i = ((((unsigned short)lenhi) << 8) + lenlo);
664 index += i;
665 break;
666 case 0x90:
667 index += 1;
668 lenlo = vpd[index];
669 index += 1;
670 lenhi = vpd[index];
671 index += 1;
672 Length = ((((unsigned short)lenhi) << 8) + lenlo);
673
674 while (Length > 0) {
675 /* Look for Serial Number */
676 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
677 index += 2;
678 i = vpd[index];
679 index += 1;
680 j = 0;
681 Length -= (3+i);
682 while(i--) {
683 phba->SerialNumber[j++] = vpd[index++];
684 if (j == 31)
685 break;
686 }
687 phba->SerialNumber[j] = 0;
688 continue;
689 }
690 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
691 phba->vpd_flag |= VPD_MODEL_DESC;
692 index += 2;
693 i = vpd[index];
694 index += 1;
695 j = 0;
696 Length -= (3+i);
697 while(i--) {
698 phba->ModelDesc[j++] = vpd[index++];
699 if (j == 255)
700 break;
701 }
702 phba->ModelDesc[j] = 0;
703 continue;
704 }
705 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
706 phba->vpd_flag |= VPD_MODEL_NAME;
707 index += 2;
708 i = vpd[index];
709 index += 1;
710 j = 0;
711 Length -= (3+i);
712 while(i--) {
713 phba->ModelName[j++] = vpd[index++];
714 if (j == 79)
715 break;
716 }
717 phba->ModelName[j] = 0;
718 continue;
719 }
720 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
721 phba->vpd_flag |= VPD_PROGRAM_TYPE;
722 index += 2;
723 i = vpd[index];
724 index += 1;
725 j = 0;
726 Length -= (3+i);
727 while(i--) {
728 phba->ProgramType[j++] = vpd[index++];
729 if (j == 255)
730 break;
731 }
732 phba->ProgramType[j] = 0;
733 continue;
734 }
735 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
736 phba->vpd_flag |= VPD_PORT;
737 index += 2;
738 i = vpd[index];
739 index += 1;
740 j = 0;
741 Length -= (3+i);
742 while(i--) {
743 phba->Port[j++] = vpd[index++];
744 if (j == 19)
745 break;
746 }
747 phba->Port[j] = 0;
748 continue;
749 }
750 else {
751 index += 2;
752 i = vpd[index];
753 index += 1;
754 index += i;
755 Length -= (3 + i);
756 }
757 }
758 finished = 0;
759 break;
760 case 0x78:
761 finished = 1;
762 break;
763 default:
764 index ++;
765 break;
766 }
767 } while (!finished && (index < 108));
768
769 return(1);
770 }
771
772 static void
773 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
774 {
775 lpfc_vpd_t *vp;
776 uint32_t id;
777 char str[16];
778
779 vp = &phba->vpd;
780 pci_read_config_dword(phba->pcidev, PCI_VENDOR_ID, &id);
781
782 switch ((id >> 16) & 0xffff) {
783 case PCI_DEVICE_ID_SUPERFLY:
784 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
785 strcpy(str, "LP7000 1");
786 else
787 strcpy(str, "LP7000E 1");
788 break;
789 case PCI_DEVICE_ID_DRAGONFLY:
790 strcpy(str, "LP8000 1");
791 break;
792 case PCI_DEVICE_ID_CENTAUR:
793 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
794 strcpy(str, "LP9002 2");
795 else
796 strcpy(str, "LP9000 1");
797 break;
798 case PCI_DEVICE_ID_RFLY:
799 strcpy(str, "LP952 2");
800 break;
801 case PCI_DEVICE_ID_PEGASUS:
802 strcpy(str, "LP9802 2");
803 break;
804 case PCI_DEVICE_ID_THOR:
805 strcpy(str, "LP10000 2");
806 break;
807 case PCI_DEVICE_ID_VIPER:
808 strcpy(str, "LPX1000 10");
809 break;
810 case PCI_DEVICE_ID_PFLY:
811 strcpy(str, "LP982 2");
812 break;
813 case PCI_DEVICE_ID_TFLY:
814 strcpy(str, "LP1050 2");
815 break;
816 case PCI_DEVICE_ID_HELIOS:
817 strcpy(str, "LP11000 4");
818 break;
819 case PCI_DEVICE_ID_BMID:
820 strcpy(str, "LP1150 4");
821 break;
822 case PCI_DEVICE_ID_BSMB:
823 strcpy(str, "LP111 4");
824 break;
825 case PCI_DEVICE_ID_ZEPHYR:
826 strcpy(str, "LP11000e 4");
827 break;
828 case PCI_DEVICE_ID_ZMID:
829 strcpy(str, "LP1150e 4");
830 break;
831 case PCI_DEVICE_ID_ZSMB:
832 strcpy(str, "LP111e 4");
833 break;
834 case PCI_DEVICE_ID_LP101:
835 strcpy(str, "LP101 2");
836 break;
837 case PCI_DEVICE_ID_LP10000S:
838 strcpy(str, "LP10000-S 2");
839 break;
840 }
841 if (mdp)
842 sscanf(str, "%s", mdp);
843 if (descp)
844 sprintf(descp, "Emulex LightPulse %s Gigabit PCI Fibre "
845 "Channel Adapter", str);
846 }
847
848 /**************************************************/
849 /* lpfc_post_buffer */
850 /* */
851 /* This routine will post count buffers to the */
852 /* ring with the QUE_RING_BUF_CN command. This */
853 /* allows 3 buffers / command to be posted. */
854 /* Returns the number of buffers NOT posted. */
855 /**************************************************/
856 int
857 lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
858 int type)
859 {
860 IOCB_t *icmd;
861 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
862 struct lpfc_iocbq *iocb = NULL;
863 struct lpfc_dmabuf *mp1, *mp2;
864
865 cnt += pring->missbufcnt;
866
867 /* While there are buffers to post */
868 while (cnt > 0) {
869 /* Allocate buffer for command iocb */
870 spin_lock_irq(phba->host->host_lock);
871 list_remove_head(lpfc_iocb_list, iocb, struct lpfc_iocbq, list);
872 spin_unlock_irq(phba->host->host_lock);
873 if (iocb == NULL) {
874 pring->missbufcnt = cnt;
875 return cnt;
876 }
877 memset(iocb, 0, sizeof (struct lpfc_iocbq));
878 icmd = &iocb->iocb;
879
880 /* 2 buffers can be posted per command */
881 /* Allocate buffer to post */
882 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
883 if (mp1)
884 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
885 &mp1->phys);
886 if (mp1 == 0 || mp1->virt == 0) {
887 if (mp1)
888 kfree(mp1);
889 spin_lock_irq(phba->host->host_lock);
890 list_add_tail(&iocb->list, lpfc_iocb_list);
891 spin_unlock_irq(phba->host->host_lock);
892 pring->missbufcnt = cnt;
893 return cnt;
894 }
895
896 INIT_LIST_HEAD(&mp1->list);
897 /* Allocate buffer to post */
898 if (cnt > 1) {
899 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
900 if (mp2)
901 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
902 &mp2->phys);
903 if (mp2 == 0 || mp2->virt == 0) {
904 if (mp2)
905 kfree(mp2);
906 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
907 kfree(mp1);
908 spin_lock_irq(phba->host->host_lock);
909 list_add_tail(&iocb->list, lpfc_iocb_list);
910 spin_unlock_irq(phba->host->host_lock);
911 pring->missbufcnt = cnt;
912 return cnt;
913 }
914
915 INIT_LIST_HEAD(&mp2->list);
916 } else {
917 mp2 = NULL;
918 }
919
920 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
921 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
922 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
923 icmd->ulpBdeCount = 1;
924 cnt--;
925 if (mp2) {
926 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
927 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
928 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
929 cnt--;
930 icmd->ulpBdeCount = 2;
931 }
932
933 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
934 icmd->ulpLe = 1;
935
936 spin_lock_irq(phba->host->host_lock);
937 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
938 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
939 kfree(mp1);
940 cnt++;
941 if (mp2) {
942 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
943 kfree(mp2);
944 cnt++;
945 }
946 list_add_tail(&iocb->list, lpfc_iocb_list);
947 pring->missbufcnt = cnt;
948 spin_unlock_irq(phba->host->host_lock);
949 return cnt;
950 }
951 spin_unlock_irq(phba->host->host_lock);
952 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
953 if (mp2) {
954 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
955 }
956 }
957 pring->missbufcnt = 0;
958 return 0;
959 }
960
961 /************************************************************************/
962 /* */
963 /* lpfc_post_rcv_buf */
964 /* This routine post initial rcv buffers to the configured rings */
965 /* */
966 /************************************************************************/
967 static int
968 lpfc_post_rcv_buf(struct lpfc_hba * phba)
969 {
970 struct lpfc_sli *psli = &phba->sli;
971
972 /* Ring 0, ELS / CT buffers */
973 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
974 /* Ring 2 - FCP no buffers needed */
975
976 return 0;
977 }
978
979 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
980
981 /************************************************************************/
982 /* */
983 /* lpfc_sha_init */
984 /* */
985 /************************************************************************/
986 static void
987 lpfc_sha_init(uint32_t * HashResultPointer)
988 {
989 HashResultPointer[0] = 0x67452301;
990 HashResultPointer[1] = 0xEFCDAB89;
991 HashResultPointer[2] = 0x98BADCFE;
992 HashResultPointer[3] = 0x10325476;
993 HashResultPointer[4] = 0xC3D2E1F0;
994 }
995
996 /************************************************************************/
997 /* */
998 /* lpfc_sha_iterate */
999 /* */
1000 /************************************************************************/
1001 static void
1002 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1003 {
1004 int t;
1005 uint32_t TEMP;
1006 uint32_t A, B, C, D, E;
1007 t = 16;
1008 do {
1009 HashWorkingPointer[t] =
1010 S(1,
1011 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1012 8] ^
1013 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1014 } while (++t <= 79);
1015 t = 0;
1016 A = HashResultPointer[0];
1017 B = HashResultPointer[1];
1018 C = HashResultPointer[2];
1019 D = HashResultPointer[3];
1020 E = HashResultPointer[4];
1021
1022 do {
1023 if (t < 20) {
1024 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1025 } else if (t < 40) {
1026 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1027 } else if (t < 60) {
1028 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1029 } else {
1030 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1031 }
1032 TEMP += S(5, A) + E + HashWorkingPointer[t];
1033 E = D;
1034 D = C;
1035 C = S(30, B);
1036 B = A;
1037 A = TEMP;
1038 } while (++t <= 79);
1039
1040 HashResultPointer[0] += A;
1041 HashResultPointer[1] += B;
1042 HashResultPointer[2] += C;
1043 HashResultPointer[3] += D;
1044 HashResultPointer[4] += E;
1045
1046 }
1047
1048 /************************************************************************/
1049 /* */
1050 /* lpfc_challenge_key */
1051 /* */
1052 /************************************************************************/
1053 static void
1054 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1055 {
1056 *HashWorking = (*RandomChallenge ^ *HashWorking);
1057 }
1058
1059 /************************************************************************/
1060 /* */
1061 /* lpfc_hba_init */
1062 /* */
1063 /************************************************************************/
1064 void
1065 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1066 {
1067 int t;
1068 uint32_t *HashWorking;
1069 uint32_t *pwwnn = phba->wwnn;
1070
1071 HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
1072 if (!HashWorking)
1073 return;
1074
1075 memset(HashWorking, 0, (80 * sizeof(uint32_t)));
1076 HashWorking[0] = HashWorking[78] = *pwwnn++;
1077 HashWorking[1] = HashWorking[79] = *pwwnn;
1078
1079 for (t = 0; t < 7; t++)
1080 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1081
1082 lpfc_sha_init(hbainit);
1083 lpfc_sha_iterate(hbainit, HashWorking);
1084 kfree(HashWorking);
1085 }
1086
1087 static void
1088 lpfc_cleanup(struct lpfc_hba * phba, uint32_t save_bind)
1089 {
1090 struct lpfc_nodelist *ndlp, *next_ndlp;
1091
1092 /* clean up phba - lpfc specific */
1093 lpfc_can_disctmo(phba);
1094 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
1095 nlp_listp) {
1096 lpfc_nlp_remove(phba, ndlp);
1097 }
1098
1099 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1100 nlp_listp) {
1101 lpfc_nlp_remove(phba, ndlp);
1102 }
1103
1104 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
1105 nlp_listp) {
1106 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1107 }
1108
1109 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1110 nlp_listp) {
1111 lpfc_nlp_remove(phba, ndlp);
1112 }
1113
1114 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1115 nlp_listp) {
1116 lpfc_nlp_remove(phba, ndlp);
1117 }
1118
1119 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
1120 nlp_listp) {
1121 lpfc_nlp_remove(phba, ndlp);
1122 }
1123
1124 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1125 nlp_listp) {
1126 lpfc_nlp_remove(phba, ndlp);
1127 }
1128
1129 list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1130 nlp_listp) {
1131 lpfc_nlp_remove(phba, ndlp);
1132 }
1133
1134 INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1135 INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1136 INIT_LIST_HEAD(&phba->fc_unused_list);
1137 INIT_LIST_HEAD(&phba->fc_plogi_list);
1138 INIT_LIST_HEAD(&phba->fc_adisc_list);
1139 INIT_LIST_HEAD(&phba->fc_reglogin_list);
1140 INIT_LIST_HEAD(&phba->fc_prli_list);
1141 INIT_LIST_HEAD(&phba->fc_npr_list);
1142
1143 phba->fc_map_cnt = 0;
1144 phba->fc_unmap_cnt = 0;
1145 phba->fc_plogi_cnt = 0;
1146 phba->fc_adisc_cnt = 0;
1147 phba->fc_reglogin_cnt = 0;
1148 phba->fc_prli_cnt = 0;
1149 phba->fc_npr_cnt = 0;
1150 phba->fc_unused_cnt= 0;
1151 return;
1152 }
1153
1154 static void
1155 lpfc_establish_link_tmo(unsigned long ptr)
1156 {
1157 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
1158 unsigned long iflag;
1159
1160
1161 /* Re-establishing Link, timer expired */
1162 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1163 "%d:1300 Re-establishing Link, timer expired "
1164 "Data: x%x x%x\n",
1165 phba->brd_no, phba->fc_flag, phba->hba_state);
1166 spin_lock_irqsave(phba->host->host_lock, iflag);
1167 phba->fc_flag &= ~FC_ESTABLISH_LINK;
1168 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1169 }
1170
1171 static int
1172 lpfc_stop_timer(struct lpfc_hba * phba)
1173 {
1174 struct lpfc_sli *psli = &phba->sli;
1175
1176 /* Instead of a timer, this has been converted to a
1177 * deferred procedding list.
1178 */
1179 while (!list_empty(&phba->freebufList)) {
1180
1181 struct lpfc_dmabuf *mp = NULL;
1182
1183 list_remove_head((&phba->freebufList), mp,
1184 struct lpfc_dmabuf, list);
1185 if (mp) {
1186 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1187 kfree(mp);
1188 }
1189 }
1190
1191 del_timer_sync(&phba->fc_estabtmo);
1192 del_timer_sync(&phba->fc_disctmo);
1193 del_timer_sync(&phba->fc_fdmitmo);
1194 del_timer_sync(&phba->els_tmofunc);
1195 psli = &phba->sli;
1196 del_timer_sync(&psli->mbox_tmo);
1197 return(1);
1198 }
1199
1200 int
1201 lpfc_online(struct lpfc_hba * phba)
1202 {
1203 if (!phba)
1204 return 0;
1205
1206 if (!(phba->fc_flag & FC_OFFLINE_MODE))
1207 return 0;
1208
1209 lpfc_printf_log(phba,
1210 KERN_WARNING,
1211 LOG_INIT,
1212 "%d:0458 Bring Adapter online\n",
1213 phba->brd_no);
1214
1215 if (!lpfc_sli_queue_setup(phba))
1216 return 1;
1217
1218 if (lpfc_sli_hba_setup(phba)) /* Initialize the HBA */
1219 return 1;
1220
1221 spin_lock_irq(phba->host->host_lock);
1222 phba->fc_flag &= ~FC_OFFLINE_MODE;
1223 spin_unlock_irq(phba->host->host_lock);
1224
1225 /*
1226 * Restart all traffic to this host. Since the fc_transport block
1227 * functions (future) were not called in lpfc_offline, don't call them
1228 * here.
1229 */
1230 scsi_unblock_requests(phba->host);
1231 return 0;
1232 }
1233
1234 int
1235 lpfc_offline(struct lpfc_hba * phba)
1236 {
1237 struct lpfc_sli_ring *pring;
1238 struct lpfc_sli *psli;
1239 unsigned long iflag;
1240 int i = 0;
1241
1242 if (!phba)
1243 return 0;
1244
1245 if (phba->fc_flag & FC_OFFLINE_MODE)
1246 return 0;
1247
1248 /*
1249 * Don't call the fc_transport block api (future). The device is
1250 * going offline and causing a timer to fire in the midlayer is
1251 * unproductive. Just block all new requests until the driver
1252 * comes back online.
1253 */
1254 scsi_block_requests(phba->host);
1255 psli = &phba->sli;
1256 pring = &psli->ring[psli->fcp_ring];
1257
1258 lpfc_linkdown(phba);
1259
1260 /* The linkdown event takes 30 seconds to timeout. */
1261 while (pring->txcmplq_cnt) {
1262 mdelay(10);
1263 if (i++ > 3000)
1264 break;
1265 }
1266
1267 /* stop all timers associated with this hba */
1268 lpfc_stop_timer(phba);
1269 phba->work_hba_events = 0;
1270
1271 lpfc_printf_log(phba,
1272 KERN_WARNING,
1273 LOG_INIT,
1274 "%d:0460 Bring Adapter offline\n",
1275 phba->brd_no);
1276
1277 /* Bring down the SLI Layer and cleanup. The HBA is offline
1278 now. */
1279 lpfc_sli_hba_down(phba);
1280 lpfc_cleanup(phba, 1);
1281 spin_lock_irqsave(phba->host->host_lock, iflag);
1282 phba->fc_flag |= FC_OFFLINE_MODE;
1283 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1284 return 0;
1285 }
1286
1287 /******************************************************************************
1288 * Function name: lpfc_scsi_free
1289 *
1290 * Description: Called from lpfc_pci_remove_one free internal driver resources
1291 *
1292 ******************************************************************************/
1293 static int
1294 lpfc_scsi_free(struct lpfc_hba * phba)
1295 {
1296 struct lpfc_scsi_buf *sb, *sb_next;
1297 struct lpfc_iocbq *io, *io_next;
1298
1299 spin_lock_irq(phba->host->host_lock);
1300 /* Release all the lpfc_scsi_bufs maintained by this host. */
1301 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
1302 list_del(&sb->list);
1303 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
1304 sb->dma_handle);
1305 kfree(sb);
1306 phba->total_scsi_bufs--;
1307 }
1308
1309 /* Release all the lpfc_iocbq entries maintained by this host. */
1310 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
1311 list_del(&io->list);
1312 kfree(io);
1313 phba->total_iocbq_bufs--;
1314 }
1315
1316 spin_unlock_irq(phba->host->host_lock);
1317
1318 return 0;
1319 }
1320
1321
1322 static int __devinit
1323 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1324 {
1325 struct Scsi_Host *host;
1326 struct lpfc_hba *phba;
1327 struct lpfc_sli *psli;
1328 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
1329 unsigned long bar0map_len, bar2map_len;
1330 int error = -ENODEV, retval;
1331 int i;
1332 u64 wwname;
1333
1334 if (pci_enable_device(pdev))
1335 goto out;
1336 if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
1337 goto out_disable_device;
1338
1339 host = scsi_host_alloc(&lpfc_template,
1340 sizeof (struct lpfc_hba) + sizeof (unsigned long));
1341 if (!host)
1342 goto out_release_regions;
1343
1344 phba = (struct lpfc_hba*)host->hostdata;
1345 memset(phba, 0, sizeof (struct lpfc_hba));
1346 phba->link_stats = (void *)&phba[1];
1347 phba->host = host;
1348
1349 phba->fc_flag |= FC_LOADING;
1350 phba->pcidev = pdev;
1351
1352 /* Assign an unused board number */
1353 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
1354 goto out_put_host;
1355
1356 error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
1357 if (error)
1358 goto out_put_host;
1359
1360 host->unique_id = phba->brd_no;
1361
1362 INIT_LIST_HEAD(&phba->ctrspbuflist);
1363 INIT_LIST_HEAD(&phba->rnidrspbuflist);
1364 INIT_LIST_HEAD(&phba->freebufList);
1365
1366 /* Initialize timers used by driver */
1367 init_timer(&phba->fc_estabtmo);
1368 phba->fc_estabtmo.function = lpfc_establish_link_tmo;
1369 phba->fc_estabtmo.data = (unsigned long)phba;
1370 init_timer(&phba->fc_disctmo);
1371 phba->fc_disctmo.function = lpfc_disc_timeout;
1372 phba->fc_disctmo.data = (unsigned long)phba;
1373
1374 init_timer(&phba->fc_fdmitmo);
1375 phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
1376 phba->fc_fdmitmo.data = (unsigned long)phba;
1377 init_timer(&phba->els_tmofunc);
1378 phba->els_tmofunc.function = lpfc_els_timeout;
1379 phba->els_tmofunc.data = (unsigned long)phba;
1380 psli = &phba->sli;
1381 init_timer(&psli->mbox_tmo);
1382 psli->mbox_tmo.function = lpfc_mbox_timeout;
1383 psli->mbox_tmo.data = (unsigned long)phba;
1384
1385 /*
1386 * Get all the module params for configuring this host and then
1387 * establish the host parameters.
1388 */
1389 lpfc_get_cfgparam(phba);
1390
1391 host->max_id = LPFC_MAX_TARGET;
1392 host->max_lun = phba->cfg_max_luns;
1393 host->this_id = -1;
1394
1395 /* Initialize all internally managed lists. */
1396 INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1397 INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1398 INIT_LIST_HEAD(&phba->fc_unused_list);
1399 INIT_LIST_HEAD(&phba->fc_plogi_list);
1400 INIT_LIST_HEAD(&phba->fc_adisc_list);
1401 INIT_LIST_HEAD(&phba->fc_reglogin_list);
1402 INIT_LIST_HEAD(&phba->fc_prli_list);
1403 INIT_LIST_HEAD(&phba->fc_npr_list);
1404
1405
1406 pci_set_master(pdev);
1407 retval = pci_set_mwi(pdev);
1408 if (retval)
1409 dev_printk(KERN_WARNING, &pdev->dev,
1410 "Warning: pci_set_mwi returned %d\n", retval);
1411
1412 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
1413 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
1414 goto out_idr_remove;
1415
1416 /*
1417 * Get the bus address of Bar0 and Bar2 and the number of bytes
1418 * required by each mapping.
1419 */
1420 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
1421 bar0map_len = pci_resource_len(phba->pcidev, 0);
1422
1423 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
1424 bar2map_len = pci_resource_len(phba->pcidev, 2);
1425
1426 /* Map HBA SLIM and Control Registers to a kernel virtual address. */
1427 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
1428 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
1429
1430 /* Allocate memory for SLI-2 structures */
1431 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
1432 &phba->slim2p_mapping, GFP_KERNEL);
1433 if (!phba->slim2p)
1434 goto out_iounmap;
1435
1436
1437 /* Initialize the SLI Layer to run with lpfc HBAs. */
1438 lpfc_sli_setup(phba);
1439 lpfc_sli_queue_setup(phba);
1440
1441 error = lpfc_mem_alloc(phba);
1442 if (error)
1443 goto out_free_slim;
1444
1445 /* Initialize and populate the iocb list per host. */
1446 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
1447 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
1448 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
1449 if (iocbq_entry == NULL) {
1450 printk(KERN_ERR "%s: only allocated %d iocbs of "
1451 "expected %d count. Unloading driver.\n",
1452 __FUNCTION__, i, LPFC_IOCB_LIST_CNT);
1453 error = -ENOMEM;
1454 goto out_free_iocbq;
1455 }
1456
1457 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
1458 spin_lock_irq(phba->host->host_lock);
1459 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
1460 phba->total_iocbq_bufs++;
1461 spin_unlock_irq(phba->host->host_lock);
1462 }
1463
1464 /* Initialize HBA structure */
1465 phba->fc_edtov = FF_DEF_EDTOV;
1466 phba->fc_ratov = FF_DEF_RATOV;
1467 phba->fc_altov = FF_DEF_ALTOV;
1468 phba->fc_arbtov = FF_DEF_ARBTOV;
1469
1470 INIT_LIST_HEAD(&phba->work_list);
1471 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
1472 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
1473
1474 /* Startup the kernel thread for this host adapter. */
1475 phba->worker_thread = kthread_run(lpfc_do_work, phba,
1476 "lpfc_worker_%d", phba->brd_no);
1477 if (IS_ERR(phba->worker_thread)) {
1478 error = PTR_ERR(phba->worker_thread);
1479 goto out_free_iocbq;
1480 }
1481
1482 /* We can rely on a queue depth attribute only after SLI HBA setup */
1483 host->can_queue = phba->cfg_hba_queue_depth - 10;
1484
1485 /* Tell the midlayer we support 16 byte commands */
1486 host->max_cmd_len = 16;
1487
1488 /* Initialize the list of scsi buffers used by driver for scsi IO. */
1489 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
1490
1491 host->transportt = lpfc_transport_template;
1492 host->hostdata[0] = (unsigned long)phba;
1493 pci_set_drvdata(pdev, host);
1494 error = scsi_add_host(host, &pdev->dev);
1495 if (error)
1496 goto out_kthread_stop;
1497
1498 error = lpfc_alloc_sysfs_attr(phba);
1499 if (error)
1500 goto out_kthread_stop;
1501
1502 error = request_irq(phba->pcidev->irq, lpfc_intr_handler, SA_SHIRQ,
1503 LPFC_DRIVER_NAME, phba);
1504 if (error) {
1505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1506 "%d:0451 Enable interrupt handler failed\n",
1507 phba->brd_no);
1508 goto out_free_sysfs_attr;
1509 }
1510 phba->MBslimaddr = phba->slim_memmap_p;
1511 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
1512 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
1513 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
1514 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
1515
1516 error = lpfc_sli_hba_setup(phba);
1517 if (error)
1518 goto out_free_irq;
1519
1520 /*
1521 * set fixed host attributes
1522 * Must done after lpfc_sli_hba_setup()
1523 */
1524
1525 memcpy(&wwname, &phba->fc_nodename, sizeof(u64));
1526 fc_host_node_name(host) = be64_to_cpu(wwname);
1527 memcpy(&wwname, &phba->fc_portname, sizeof(u64));
1528 fc_host_port_name(host) = be64_to_cpu(wwname);
1529 fc_host_supported_classes(host) = FC_COS_CLASS3;
1530
1531 memset(fc_host_supported_fc4s(host), 0,
1532 sizeof(fc_host_supported_fc4s(host)));
1533 fc_host_supported_fc4s(host)[2] = 1;
1534 fc_host_supported_fc4s(host)[7] = 1;
1535
1536 lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));
1537
1538 fc_host_supported_speeds(host) = 0;
1539 switch (FC_JEDEC_ID(phba->vpd.rev.biuRev)) {
1540 case VIPER_JEDEC_ID:
1541 fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
1542 break;
1543 case HELIOS_JEDEC_ID:
1544 fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
1545 /* Fall through */
1546 case CENTAUR_2G_JEDEC_ID:
1547 case PEGASUS_JEDEC_ID:
1548 case THOR_JEDEC_ID:
1549 fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
1550 /* Fall through */
1551 default:
1552 fc_host_supported_speeds(host) = FC_PORTSPEED_1GBIT;
1553 }
1554
1555 fc_host_maxframe_size(host) =
1556 ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
1557 (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);
1558
1559 /* This value is also unchanging */
1560 memset(fc_host_active_fc4s(host), 0,
1561 sizeof(fc_host_active_fc4s(host)));
1562 fc_host_active_fc4s(host)[2] = 1;
1563 fc_host_active_fc4s(host)[7] = 1;
1564
1565 spin_lock_irq(phba->host->host_lock);
1566 phba->fc_flag &= ~FC_LOADING;
1567 spin_unlock_irq(phba->host->host_lock);
1568 return 0;
1569
1570 out_free_irq:
1571 lpfc_stop_timer(phba);
1572 phba->work_hba_events = 0;
1573 free_irq(phba->pcidev->irq, phba);
1574 out_free_sysfs_attr:
1575 lpfc_free_sysfs_attr(phba);
1576 out_kthread_stop:
1577 kthread_stop(phba->worker_thread);
1578 out_free_iocbq:
1579 list_for_each_entry_safe(iocbq_entry, iocbq_next,
1580 &phba->lpfc_iocb_list, list) {
1581 spin_lock_irq(phba->host->host_lock);
1582 kfree(iocbq_entry);
1583 phba->total_iocbq_bufs--;
1584 spin_unlock_irq(phba->host->host_lock);
1585 }
1586 lpfc_mem_free(phba);
1587 out_free_slim:
1588 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
1589 phba->slim2p_mapping);
1590 out_iounmap:
1591 iounmap(phba->ctrl_regs_memmap_p);
1592 iounmap(phba->slim_memmap_p);
1593 out_idr_remove:
1594 idr_remove(&lpfc_hba_index, phba->brd_no);
1595 out_put_host:
1596 scsi_host_put(host);
1597 out_release_regions:
1598 pci_release_regions(pdev);
1599 out_disable_device:
1600 pci_disable_device(pdev);
1601 out:
1602 return error;
1603 }
1604
1605 static void __devexit
1606 lpfc_pci_remove_one(struct pci_dev *pdev)
1607 {
1608 struct Scsi_Host *host = pci_get_drvdata(pdev);
1609 struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata[0];
1610 unsigned long iflag;
1611
1612 lpfc_free_sysfs_attr(phba);
1613
1614 spin_lock_irqsave(phba->host->host_lock, iflag);
1615 phba->fc_flag |= FC_UNLOADING;
1616
1617 spin_unlock_irqrestore(phba->host->host_lock, iflag);
1618
1619 fc_remove_host(phba->host);
1620 scsi_remove_host(phba->host);
1621
1622 kthread_stop(phba->worker_thread);
1623
1624 /*
1625 * Bring down the SLI Layer. This step disable all interrupts,
1626 * clears the rings, discards all mailbox commands, and resets
1627 * the HBA.
1628 */
1629 lpfc_sli_hba_down(phba);
1630
1631 /* Release the irq reservation */
1632 free_irq(phba->pcidev->irq, phba);
1633
1634 lpfc_cleanup(phba, 0);
1635 lpfc_stop_timer(phba);
1636 phba->work_hba_events = 0;
1637
1638 /*
1639 * Call scsi_free before mem_free since scsi bufs are released to their
1640 * corresponding pools here.
1641 */
1642 lpfc_scsi_free(phba);
1643 lpfc_mem_free(phba);
1644
1645 /* Free resources associated with SLI2 interface */
1646 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
1647 phba->slim2p, phba->slim2p_mapping);
1648
1649 /* unmap adapter SLIM and Control Registers */
1650 iounmap(phba->ctrl_regs_memmap_p);
1651 iounmap(phba->slim_memmap_p);
1652
1653 pci_release_regions(phba->pcidev);
1654 pci_disable_device(phba->pcidev);
1655
1656 idr_remove(&lpfc_hba_index, phba->brd_no);
1657 scsi_host_put(phba->host);
1658
1659 pci_set_drvdata(pdev, NULL);
1660 }
1661
1662 static struct pci_device_id lpfc_id_table[] = {
1663 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
1664 PCI_ANY_ID, PCI_ANY_ID, },
1665 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
1666 PCI_ANY_ID, PCI_ANY_ID, },
1667 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
1668 PCI_ANY_ID, PCI_ANY_ID, },
1669 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
1670 PCI_ANY_ID, PCI_ANY_ID, },
1671 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
1672 PCI_ANY_ID, PCI_ANY_ID, },
1673 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
1674 PCI_ANY_ID, PCI_ANY_ID, },
1675 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
1676 PCI_ANY_ID, PCI_ANY_ID, },
1677 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
1678 PCI_ANY_ID, PCI_ANY_ID, },
1679 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
1680 PCI_ANY_ID, PCI_ANY_ID, },
1681 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
1682 PCI_ANY_ID, PCI_ANY_ID, },
1683 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
1684 PCI_ANY_ID, PCI_ANY_ID, },
1685 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
1686 PCI_ANY_ID, PCI_ANY_ID, },
1687 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
1688 PCI_ANY_ID, PCI_ANY_ID, },
1689 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
1690 PCI_ANY_ID, PCI_ANY_ID, },
1691 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
1692 PCI_ANY_ID, PCI_ANY_ID, },
1693 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
1694 PCI_ANY_ID, PCI_ANY_ID, },
1695 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
1696 PCI_ANY_ID, PCI_ANY_ID, },
1697 { 0 }
1698 };
1699
1700 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
1701
1702 static struct pci_driver lpfc_driver = {
1703 .name = LPFC_DRIVER_NAME,
1704 .id_table = lpfc_id_table,
1705 .probe = lpfc_pci_probe_one,
1706 .remove = __devexit_p(lpfc_pci_remove_one),
1707 };
1708
1709 static int __init
1710 lpfc_init(void)
1711 {
1712 int error = 0;
1713
1714 printk(LPFC_MODULE_DESC "\n");
1715
1716 lpfc_transport_template =
1717 fc_attach_transport(&lpfc_transport_functions);
1718 if (!lpfc_transport_template)
1719 return -ENOMEM;
1720 error = pci_register_driver(&lpfc_driver);
1721 if (error)
1722 fc_release_transport(lpfc_transport_template);
1723
1724 return error;
1725 }
1726
1727 static void __exit
1728 lpfc_exit(void)
1729 {
1730 pci_unregister_driver(&lpfc_driver);
1731 fc_release_transport(lpfc_transport_template);
1732 }
1733
1734 module_init(lpfc_init);
1735 module_exit(lpfc_exit);
1736 MODULE_LICENSE("GPL");
1737 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
1738 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
1739 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Verdex Pro support