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[SCSI] lpfc: Move a dereference below a NULL test
[linux-2.6/mini2440.git] / drivers / scsi / lpfc / lpfc_init.c
blob6c867311cef1d295a8f7e39b2b1b7c43107f4202
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2008 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/pci.h>
29 #include <linux/spinlock.h>
30 #include <linux/ctype.h>
31
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36
37 #include "lpfc_hw.h"
38 #include "lpfc_sli.h"
39 #include "lpfc_nl.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_vport.h"
46 #include "lpfc_version.h"
47
48 char *_dump_buf_data;
49 unsigned long _dump_buf_data_order;
50 char *_dump_buf_dif;
51 unsigned long _dump_buf_dif_order;
52 spinlock_t _dump_buf_lock;
53
54 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
55 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
56 static int lpfc_post_rcv_buf(struct lpfc_hba *);
57
58 static struct scsi_transport_template *lpfc_transport_template = NULL;
59 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
60 static DEFINE_IDR(lpfc_hba_index);
61
62 /**
63 * lpfc_config_port_prep: Perform lpfc initialization prior to config port.
64 * @phba: pointer to lpfc hba data structure.
65 *
66 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
67 * mailbox command. It retrieves the revision information from the HBA and
68 * collects the Vital Product Data (VPD) about the HBA for preparing the
69 * configuration of the HBA.
70 *
71 * Return codes:
72 * 0 - success.
73 * -ERESTART - requests the SLI layer to reset the HBA and try again.
74 * Any other value - indicates an error.
75 **/
76 int
77 lpfc_config_port_prep(struct lpfc_hba *phba)
78 {
79 lpfc_vpd_t *vp = &phba->vpd;
80 int i = 0, rc;
81 LPFC_MBOXQ_t *pmb;
82 MAILBOX_t *mb;
83 char *lpfc_vpd_data = NULL;
84 uint16_t offset = 0;
85 static char licensed[56] =
86 "key unlock for use with gnu public licensed code only\0";
87 static int init_key = 1;
88
89 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
90 if (!pmb) {
91 phba->link_state = LPFC_HBA_ERROR;
92 return -ENOMEM;
93 }
94
95 mb = &pmb->mb;
96 phba->link_state = LPFC_INIT_MBX_CMDS;
97
98 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
99 if (init_key) {
100 uint32_t *ptext = (uint32_t *) licensed;
101
102 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
103 *ptext = cpu_to_be32(*ptext);
104 init_key = 0;
105 }
106
107 lpfc_read_nv(phba, pmb);
108 memset((char*)mb->un.varRDnvp.rsvd3, 0,
109 sizeof (mb->un.varRDnvp.rsvd3));
110 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
111 sizeof (licensed));
112
113 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
114
115 if (rc != MBX_SUCCESS) {
116 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
117 "0324 Config Port initialization "
118 "error, mbxCmd x%x READ_NVPARM, "
119 "mbxStatus x%x\n",
120 mb->mbxCommand, mb->mbxStatus);
121 mempool_free(pmb, phba->mbox_mem_pool);
122 return -ERESTART;
123 }
124 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
125 sizeof(phba->wwnn));
126 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
127 sizeof(phba->wwpn));
128 }
129
130 phba->sli3_options = 0x0;
131
132 /* Setup and issue mailbox READ REV command */
133 lpfc_read_rev(phba, pmb);
134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
135 if (rc != MBX_SUCCESS) {
136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
137 "0439 Adapter failed to init, mbxCmd x%x "
138 "READ_REV, mbxStatus x%x\n",
139 mb->mbxCommand, mb->mbxStatus);
140 mempool_free( pmb, phba->mbox_mem_pool);
141 return -ERESTART;
142 }
143
144
145 /*
146 * The value of rr must be 1 since the driver set the cv field to 1.
147 * This setting requires the FW to set all revision fields.
148 */
149 if (mb->un.varRdRev.rr == 0) {
150 vp->rev.rBit = 0;
151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
152 "0440 Adapter failed to init, READ_REV has "
153 "missing revision information.\n");
154 mempool_free(pmb, phba->mbox_mem_pool);
155 return -ERESTART;
156 }
157
158 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
159 mempool_free(pmb, phba->mbox_mem_pool);
160 return -EINVAL;
161 }
162
163 /* Save information as VPD data */
164 vp->rev.rBit = 1;
165 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
166 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
167 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
168 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
169 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
170 vp->rev.biuRev = mb->un.varRdRev.biuRev;
171 vp->rev.smRev = mb->un.varRdRev.smRev;
172 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
173 vp->rev.endecRev = mb->un.varRdRev.endecRev;
174 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
175 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
176 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
177 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
178 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
179 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
180
181 /* If the sli feature level is less then 9, we must
182 * tear down all RPIs and VPIs on link down if NPIV
183 * is enabled.
184 */
185 if (vp->rev.feaLevelHigh < 9)
186 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
187
188 if (lpfc_is_LC_HBA(phba->pcidev->device))
189 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
190 sizeof (phba->RandomData));
191
192 /* Get adapter VPD information */
193 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
194 if (!lpfc_vpd_data)
195 goto out_free_mbox;
196
197 do {
198 lpfc_dump_mem(phba, pmb, offset);
199 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
200
201 if (rc != MBX_SUCCESS) {
202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
203 "0441 VPD not present on adapter, "
204 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
205 mb->mbxCommand, mb->mbxStatus);
206 mb->un.varDmp.word_cnt = 0;
207 }
208 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
209 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
210 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
211 lpfc_vpd_data + offset,
212 mb->un.varDmp.word_cnt);
213 offset += mb->un.varDmp.word_cnt;
214 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
215 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
216
217 kfree(lpfc_vpd_data);
218 out_free_mbox:
219 mempool_free(pmb, phba->mbox_mem_pool);
220 return 0;
221 }
222
223 /**
224 * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd.
225 * @phba: pointer to lpfc hba data structure.
226 * @pmboxq: pointer to the driver internal queue element for mailbox command.
227 *
228 * This is the completion handler for driver's configuring asynchronous event
229 * mailbox command to the device. If the mailbox command returns successfully,
230 * it will set internal async event support flag to 1; otherwise, it will
231 * set internal async event support flag to 0.
232 **/
233 static void
234 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
235 {
236 if (pmboxq->mb.mbxStatus == MBX_SUCCESS)
237 phba->temp_sensor_support = 1;
238 else
239 phba->temp_sensor_support = 0;
240 mempool_free(pmboxq, phba->mbox_mem_pool);
241 return;
242 }
243
244 /**
245 * lpfc_dump_wakeup_param_cmpl: Completion handler for dump memory mailbox
246 * command used for getting wake up parameters.
247 * @phba: pointer to lpfc hba data structure.
248 * @pmboxq: pointer to the driver internal queue element for mailbox command.
249 *
250 * This is the completion handler for dump mailbox command for getting
251 * wake up parameters. When this command complete, the response contain
252 * Option rom version of the HBA. This function translate the version number
253 * into a human readable string and store it in OptionROMVersion.
254 **/
255 static void
256 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
257 {
258 struct prog_id *prg;
259 uint32_t prog_id_word;
260 char dist = ' ';
261 /* character array used for decoding dist type. */
262 char dist_char[] = "nabx";
263
264 if (pmboxq->mb.mbxStatus != MBX_SUCCESS) {
265 mempool_free(pmboxq, phba->mbox_mem_pool);
266 return;
267 }
268
269 prg = (struct prog_id *) &prog_id_word;
270
271 /* word 7 contain option rom version */
272 prog_id_word = pmboxq->mb.un.varWords[7];
273
274 /* Decode the Option rom version word to a readable string */
275 if (prg->dist < 4)
276 dist = dist_char[prg->dist];
277
278 if ((prg->dist == 3) && (prg->num == 0))
279 sprintf(phba->OptionROMVersion, "%d.%d%d",
280 prg->ver, prg->rev, prg->lev);
281 else
282 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
283 prg->ver, prg->rev, prg->lev,
284 dist, prg->num);
285 mempool_free(pmboxq, phba->mbox_mem_pool);
286 return;
287 }
288
289 /**
290 * lpfc_config_port_post: Perform lpfc initialization after config port.
291 * @phba: pointer to lpfc hba data structure.
292 *
293 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
294 * command call. It performs all internal resource and state setups on the
295 * port: post IOCB buffers, enable appropriate host interrupt attentions,
296 * ELS ring timers, etc.
297 *
298 * Return codes
299 * 0 - success.
300 * Any other value - error.
301 **/
302 int
303 lpfc_config_port_post(struct lpfc_hba *phba)
304 {
305 struct lpfc_vport *vport = phba->pport;
306 LPFC_MBOXQ_t *pmb;
307 MAILBOX_t *mb;
308 struct lpfc_dmabuf *mp;
309 struct lpfc_sli *psli = &phba->sli;
310 uint32_t status, timeout;
311 int i, j;
312 int rc;
313
314 spin_lock_irq(&phba->hbalock);
315 /*
316 * If the Config port completed correctly the HBA is not
317 * over heated any more.
318 */
319 if (phba->over_temp_state == HBA_OVER_TEMP)
320 phba->over_temp_state = HBA_NORMAL_TEMP;
321 spin_unlock_irq(&phba->hbalock);
322
323 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
324 if (!pmb) {
325 phba->link_state = LPFC_HBA_ERROR;
326 return -ENOMEM;
327 }
328 mb = &pmb->mb;
329
330 /* Get login parameters for NID. */
331 lpfc_read_sparam(phba, pmb, 0);
332 pmb->vport = vport;
333 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
334 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
335 "0448 Adapter failed init, mbxCmd x%x "
336 "READ_SPARM mbxStatus x%x\n",
337 mb->mbxCommand, mb->mbxStatus);
338 phba->link_state = LPFC_HBA_ERROR;
339 mp = (struct lpfc_dmabuf *) pmb->context1;
340 mempool_free( pmb, phba->mbox_mem_pool);
341 lpfc_mbuf_free(phba, mp->virt, mp->phys);
342 kfree(mp);
343 return -EIO;
344 }
345
346 mp = (struct lpfc_dmabuf *) pmb->context1;
347
348 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
349 lpfc_mbuf_free(phba, mp->virt, mp->phys);
350 kfree(mp);
351 pmb->context1 = NULL;
352
353 if (phba->cfg_soft_wwnn)
354 u64_to_wwn(phba->cfg_soft_wwnn,
355 vport->fc_sparam.nodeName.u.wwn);
356 if (phba->cfg_soft_wwpn)
357 u64_to_wwn(phba->cfg_soft_wwpn,
358 vport->fc_sparam.portName.u.wwn);
359 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
360 sizeof (struct lpfc_name));
361 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
362 sizeof (struct lpfc_name));
363 /* If no serial number in VPD data, use low 6 bytes of WWNN */
364 /* This should be consolidated into parse_vpd ? - mr */
365 if (phba->SerialNumber[0] == 0) {
366 uint8_t *outptr;
367
368 outptr = &vport->fc_nodename.u.s.IEEE[0];
369 for (i = 0; i < 12; i++) {
370 status = *outptr++;
371 j = ((status & 0xf0) >> 4);
372 if (j <= 9)
373 phba->SerialNumber[i] =
374 (char)((uint8_t) 0x30 + (uint8_t) j);
375 else
376 phba->SerialNumber[i] =
377 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
378 i++;
379 j = (status & 0xf);
380 if (j <= 9)
381 phba->SerialNumber[i] =
382 (char)((uint8_t) 0x30 + (uint8_t) j);
383 else
384 phba->SerialNumber[i] =
385 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
386 }
387 }
388
389 lpfc_read_config(phba, pmb);
390 pmb->vport = vport;
391 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
393 "0453 Adapter failed to init, mbxCmd x%x "
394 "READ_CONFIG, mbxStatus x%x\n",
395 mb->mbxCommand, mb->mbxStatus);
396 phba->link_state = LPFC_HBA_ERROR;
397 mempool_free( pmb, phba->mbox_mem_pool);
398 return -EIO;
399 }
400
401 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
402 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
403 phba->cfg_hba_queue_depth =
404 mb->un.varRdConfig.max_xri + 1;
405
406 phba->lmt = mb->un.varRdConfig.lmt;
407
408 /* Get the default values for Model Name and Description */
409 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
410
411 if ((phba->cfg_link_speed > LINK_SPEED_10G)
412 || ((phba->cfg_link_speed == LINK_SPEED_1G)
413 && !(phba->lmt & LMT_1Gb))
414 || ((phba->cfg_link_speed == LINK_SPEED_2G)
415 && !(phba->lmt & LMT_2Gb))
416 || ((phba->cfg_link_speed == LINK_SPEED_4G)
417 && !(phba->lmt & LMT_4Gb))
418 || ((phba->cfg_link_speed == LINK_SPEED_8G)
419 && !(phba->lmt & LMT_8Gb))
420 || ((phba->cfg_link_speed == LINK_SPEED_10G)
421 && !(phba->lmt & LMT_10Gb))) {
422 /* Reset link speed to auto */
423 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
424 "1302 Invalid speed for this board: "
425 "Reset link speed to auto: x%x\n",
426 phba->cfg_link_speed);
427 phba->cfg_link_speed = LINK_SPEED_AUTO;
428 }
429
430 phba->link_state = LPFC_LINK_DOWN;
431
432 /* Only process IOCBs on ELS ring till hba_state is READY */
433 if (psli->ring[psli->extra_ring].cmdringaddr)
434 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
435 if (psli->ring[psli->fcp_ring].cmdringaddr)
436 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
437 if (psli->ring[psli->next_ring].cmdringaddr)
438 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
439
440 /* Post receive buffers for desired rings */
441 if (phba->sli_rev != 3)
442 lpfc_post_rcv_buf(phba);
443
444 /*
445 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
446 */
447 if (phba->intr_type == MSIX) {
448 rc = lpfc_config_msi(phba, pmb);
449 if (rc) {
450 mempool_free(pmb, phba->mbox_mem_pool);
451 return -EIO;
452 }
453 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
454 if (rc != MBX_SUCCESS) {
455 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
456 "0352 Config MSI mailbox command "
457 "failed, mbxCmd x%x, mbxStatus x%x\n",
458 pmb->mb.mbxCommand, pmb->mb.mbxStatus);
459 mempool_free(pmb, phba->mbox_mem_pool);
460 return -EIO;
461 }
462 }
463
464 /* Initialize ERATT handling flag */
465 phba->hba_flag &= ~HBA_ERATT_HANDLED;
466
467 /* Enable appropriate host interrupts */
468 spin_lock_irq(&phba->hbalock);
469 status = readl(phba->HCregaddr);
470 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
471 if (psli->num_rings > 0)
472 status |= HC_R0INT_ENA;
473 if (psli->num_rings > 1)
474 status |= HC_R1INT_ENA;
475 if (psli->num_rings > 2)
476 status |= HC_R2INT_ENA;
477 if (psli->num_rings > 3)
478 status |= HC_R3INT_ENA;
479
480 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
481 (phba->cfg_poll & DISABLE_FCP_RING_INT))
482 status &= ~(HC_R0INT_ENA);
483
484 writel(status, phba->HCregaddr);
485 readl(phba->HCregaddr); /* flush */
486 spin_unlock_irq(&phba->hbalock);
487
488 /* Set up ring-0 (ELS) timer */
489 timeout = phba->fc_ratov * 2;
490 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
491 /* Set up heart beat (HB) timer */
492 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
493 phba->hb_outstanding = 0;
494 phba->last_completion_time = jiffies;
495 /* Set up error attention (ERATT) polling timer */
496 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
497
498 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
499 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
500 lpfc_set_loopback_flag(phba);
501 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
502 if (rc != MBX_SUCCESS) {
503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
504 "0454 Adapter failed to init, mbxCmd x%x "
505 "INIT_LINK, mbxStatus x%x\n",
506 mb->mbxCommand, mb->mbxStatus);
507
508 /* Clear all interrupt enable conditions */
509 writel(0, phba->HCregaddr);
510 readl(phba->HCregaddr); /* flush */
511 /* Clear all pending interrupts */
512 writel(0xffffffff, phba->HAregaddr);
513 readl(phba->HAregaddr); /* flush */
514
515 phba->link_state = LPFC_HBA_ERROR;
516 if (rc != MBX_BUSY)
517 mempool_free(pmb, phba->mbox_mem_pool);
518 return -EIO;
519 }
520 /* MBOX buffer will be freed in mbox compl */
521 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
522 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
523 pmb->mbox_cmpl = lpfc_config_async_cmpl;
524 pmb->vport = phba->pport;
525 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
526
527 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
528 lpfc_printf_log(phba,
529 KERN_ERR,
530 LOG_INIT,
531 "0456 Adapter failed to issue "
532 "ASYNCEVT_ENABLE mbox status x%x \n.",
533 rc);
534 mempool_free(pmb, phba->mbox_mem_pool);
535 }
536
537 /* Get Option rom version */
538 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
539 lpfc_dump_wakeup_param(phba, pmb);
540 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
541 pmb->vport = phba->pport;
542 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
543
544 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
546 "to get Option ROM version status x%x\n.", rc);
547 mempool_free(pmb, phba->mbox_mem_pool);
548 }
549
550 return 0;
551 }
552
553 /**
554 * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset.
555 * @phba: pointer to lpfc HBA data structure.
556 *
557 * This routine will do LPFC uninitialization before the HBA is reset when
558 * bringing down the SLI Layer.
559 *
560 * Return codes
561 * 0 - success.
562 * Any other value - error.
563 **/
564 int
565 lpfc_hba_down_prep(struct lpfc_hba *phba)
566 {
567 struct lpfc_vport **vports;
568 int i;
569 /* Disable interrupts */
570 writel(0, phba->HCregaddr);
571 readl(phba->HCregaddr); /* flush */
572
573 if (phba->pport->load_flag & FC_UNLOADING)
574 lpfc_cleanup_discovery_resources(phba->pport);
575 else {
576 vports = lpfc_create_vport_work_array(phba);
577 if (vports != NULL)
578 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
579 lpfc_cleanup_discovery_resources(vports[i]);
580 lpfc_destroy_vport_work_array(phba, vports);
581 }
582 return 0;
583 }
584
585 /**
586 * lpfc_hba_down_post: Perform lpfc uninitialization after HBA reset.
587 * @phba: pointer to lpfc HBA data structure.
588 *
589 * This routine will do uninitialization after the HBA is reset when bring
590 * down the SLI Layer.
591 *
592 * Return codes
593 * 0 - sucess.
594 * Any other value - error.
595 **/
596 int
597 lpfc_hba_down_post(struct lpfc_hba *phba)
598 {
599 struct lpfc_sli *psli = &phba->sli;
600 struct lpfc_sli_ring *pring;
601 struct lpfc_dmabuf *mp, *next_mp;
602 struct lpfc_iocbq *iocb;
603 IOCB_t *cmd = NULL;
604 LIST_HEAD(completions);
605 int i;
606
607 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
608 lpfc_sli_hbqbuf_free_all(phba);
609 else {
610 /* Cleanup preposted buffers on the ELS ring */
611 pring = &psli->ring[LPFC_ELS_RING];
612 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
613 list_del(&mp->list);
614 pring->postbufq_cnt--;
615 lpfc_mbuf_free(phba, mp->virt, mp->phys);
616 kfree(mp);
617 }
618 }
619
620 spin_lock_irq(&phba->hbalock);
621 for (i = 0; i < psli->num_rings; i++) {
622 pring = &psli->ring[i];
623
624 /* At this point in time the HBA is either reset or DOA. Either
625 * way, nothing should be on txcmplq as it will NEVER complete.
626 */
627 list_splice_init(&pring->txcmplq, &completions);
628 pring->txcmplq_cnt = 0;
629 spin_unlock_irq(&phba->hbalock);
630
631 while (!list_empty(&completions)) {
632 iocb = list_get_first(&completions, struct lpfc_iocbq,
633 list);
634 cmd = &iocb->iocb;
635 list_del_init(&iocb->list);
636
637 if (!iocb->iocb_cmpl)
638 lpfc_sli_release_iocbq(phba, iocb);
639 else {
640 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
641 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
642 (iocb->iocb_cmpl) (phba, iocb, iocb);
643 }
644 }
645
646 lpfc_sli_abort_iocb_ring(phba, pring);
647 spin_lock_irq(&phba->hbalock);
648 }
649 spin_unlock_irq(&phba->hbalock);
650
651 return 0;
652 }
653
654 /**
655 * lpfc_hb_timeout: The HBA-timer timeout handler.
656 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
657 *
658 * This is the HBA-timer timeout handler registered to the lpfc driver. When
659 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
660 * work-port-events bitmap and the worker thread is notified. This timeout
661 * event will be used by the worker thread to invoke the actual timeout
662 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
663 * be performed in the timeout handler and the HBA timeout event bit shall
664 * be cleared by the worker thread after it has taken the event bitmap out.
665 **/
666 static void
667 lpfc_hb_timeout(unsigned long ptr)
668 {
669 struct lpfc_hba *phba;
670 uint32_t tmo_posted;
671 unsigned long iflag;
672
673 phba = (struct lpfc_hba *)ptr;
674
675 /* Check for heart beat timeout conditions */
676 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
677 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
678 if (!tmo_posted)
679 phba->pport->work_port_events |= WORKER_HB_TMO;
680 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
681
682 /* Tell the worker thread there is work to do */
683 if (!tmo_posted)
684 lpfc_worker_wake_up(phba);
685 return;
686 }
687
688 /**
689 * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function.
690 * @phba: pointer to lpfc hba data structure.
691 * @pmboxq: pointer to the driver internal queue element for mailbox command.
692 *
693 * This is the callback function to the lpfc heart-beat mailbox command.
694 * If configured, the lpfc driver issues the heart-beat mailbox command to
695 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
696 * heart-beat mailbox command is issued, the driver shall set up heart-beat
697 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
698 * heart-beat outstanding state. Once the mailbox command comes back and
699 * no error conditions detected, the heart-beat mailbox command timer is
700 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
701 * state is cleared for the next heart-beat. If the timer expired with the
702 * heart-beat outstanding state set, the driver will put the HBA offline.
703 **/
704 static void
705 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
706 {
707 unsigned long drvr_flag;
708
709 spin_lock_irqsave(&phba->hbalock, drvr_flag);
710 phba->hb_outstanding = 0;
711 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
712
713 /* Check and reset heart-beat timer is necessary */
714 mempool_free(pmboxq, phba->mbox_mem_pool);
715 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
716 !(phba->link_state == LPFC_HBA_ERROR) &&
717 !(phba->pport->load_flag & FC_UNLOADING))
718 mod_timer(&phba->hb_tmofunc,
719 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
720 return;
721 }
722
723 /**
724 * lpfc_hb_timeout_handler: The HBA-timer timeout handler.
725 * @phba: pointer to lpfc hba data structure.
726 *
727 * This is the actual HBA-timer timeout handler to be invoked by the worker
728 * thread whenever the HBA timer fired and HBA-timeout event posted. This
729 * handler performs any periodic operations needed for the device. If such
730 * periodic event has already been attended to either in the interrupt handler
731 * or by processing slow-ring or fast-ring events within the HBA-timer
732 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
733 * the timer for the next timeout period. If lpfc heart-beat mailbox command
734 * is configured and there is no heart-beat mailbox command outstanding, a
735 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
736 * has been a heart-beat mailbox command outstanding, the HBA shall be put
737 * to offline.
738 **/
739 void
740 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
741 {
742 LPFC_MBOXQ_t *pmboxq;
743 struct lpfc_dmabuf *buf_ptr;
744 int retval;
745 struct lpfc_sli *psli = &phba->sli;
746 LIST_HEAD(completions);
747
748 if ((phba->link_state == LPFC_HBA_ERROR) ||
749 (phba->pport->load_flag & FC_UNLOADING) ||
750 (phba->pport->fc_flag & FC_OFFLINE_MODE))
751 return;
752
753 spin_lock_irq(&phba->pport->work_port_lock);
754
755 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
756 jiffies)) {
757 spin_unlock_irq(&phba->pport->work_port_lock);
758 if (!phba->hb_outstanding)
759 mod_timer(&phba->hb_tmofunc,
760 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
761 else
762 mod_timer(&phba->hb_tmofunc,
763 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
764 return;
765 }
766 spin_unlock_irq(&phba->pport->work_port_lock);
767
768 if (phba->elsbuf_cnt &&
769 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
770 spin_lock_irq(&phba->hbalock);
771 list_splice_init(&phba->elsbuf, &completions);
772 phba->elsbuf_cnt = 0;
773 phba->elsbuf_prev_cnt = 0;
774 spin_unlock_irq(&phba->hbalock);
775
776 while (!list_empty(&completions)) {
777 list_remove_head(&completions, buf_ptr,
778 struct lpfc_dmabuf, list);
779 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
780 kfree(buf_ptr);
781 }
782 }
783 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
784
785 /* If there is no heart beat outstanding, issue a heartbeat command */
786 if (phba->cfg_enable_hba_heartbeat) {
787 if (!phba->hb_outstanding) {
788 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
789 if (!pmboxq) {
790 mod_timer(&phba->hb_tmofunc,
791 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
792 return;
793 }
794
795 lpfc_heart_beat(phba, pmboxq);
796 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
797 pmboxq->vport = phba->pport;
798 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
799
800 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
801 mempool_free(pmboxq, phba->mbox_mem_pool);
802 mod_timer(&phba->hb_tmofunc,
803 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
804 return;
805 }
806 mod_timer(&phba->hb_tmofunc,
807 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
808 phba->hb_outstanding = 1;
809 return;
810 } else {
811 /*
812 * If heart beat timeout called with hb_outstanding set
813 * we need to take the HBA offline.
814 */
815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
816 "0459 Adapter heartbeat failure, "
817 "taking this port offline.\n");
818
819 spin_lock_irq(&phba->hbalock);
820 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
821 spin_unlock_irq(&phba->hbalock);
822
823 lpfc_offline_prep(phba);
824 lpfc_offline(phba);
825 lpfc_unblock_mgmt_io(phba);
826 phba->link_state = LPFC_HBA_ERROR;
827 lpfc_hba_down_post(phba);
828 }
829 }
830 }
831
832 /**
833 * lpfc_offline_eratt: Bring lpfc offline on hardware error attention.
834 * @phba: pointer to lpfc hba data structure.
835 *
836 * This routine is called to bring the HBA offline when HBA hardware error
837 * other than Port Error 6 has been detected.
838 **/
839 static void
840 lpfc_offline_eratt(struct lpfc_hba *phba)
841 {
842 struct lpfc_sli *psli = &phba->sli;
843
844 spin_lock_irq(&phba->hbalock);
845 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
846 spin_unlock_irq(&phba->hbalock);
847 lpfc_offline_prep(phba);
848
849 lpfc_offline(phba);
850 lpfc_reset_barrier(phba);
851 lpfc_sli_brdreset(phba);
852 lpfc_hba_down_post(phba);
853 lpfc_sli_brdready(phba, HS_MBRDY);
854 lpfc_unblock_mgmt_io(phba);
855 phba->link_state = LPFC_HBA_ERROR;
856 return;
857 }
858
859 /**
860 * lpfc_handle_eratt: The HBA hardware error handler.
861 * @phba: pointer to lpfc hba data structure.
862 *
863 * This routine is invoked to handle the following HBA hardware error
864 * conditions:
865 * 1 - HBA error attention interrupt
866 * 2 - DMA ring index out of range
867 * 3 - Mailbox command came back as unknown
868 **/
869 void
870 lpfc_handle_eratt(struct lpfc_hba *phba)
871 {
872 struct lpfc_vport *vport = phba->pport;
873 struct lpfc_sli *psli = &phba->sli;
874 struct lpfc_sli_ring *pring;
875 uint32_t event_data;
876 unsigned long temperature;
877 struct temp_event temp_event_data;
878 struct Scsi_Host *shost;
879 struct lpfc_board_event_header board_event;
880
881 /* If the pci channel is offline, ignore possible errors,
882 * since we cannot communicate with the pci card anyway. */
883 if (pci_channel_offline(phba->pcidev))
884 return;
885 /* If resets are disabled then leave the HBA alone and return */
886 if (!phba->cfg_enable_hba_reset)
887 return;
888
889 /* Send an internal error event to mgmt application */
890 board_event.event_type = FC_REG_BOARD_EVENT;
891 board_event.subcategory = LPFC_EVENT_PORTINTERR;
892 shost = lpfc_shost_from_vport(phba->pport);
893 fc_host_post_vendor_event(shost, fc_get_event_number(),
894 sizeof(board_event),
895 (char *) &board_event,
896 LPFC_NL_VENDOR_ID);
897
898 if (phba->work_hs & HS_FFER6) {
899 /* Re-establishing Link */
900 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
901 "1301 Re-establishing Link "
902 "Data: x%x x%x x%x\n",
903 phba->work_hs,
904 phba->work_status[0], phba->work_status[1]);
905
906 spin_lock_irq(&phba->hbalock);
907 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
908 spin_unlock_irq(&phba->hbalock);
909
910 /*
911 * Firmware stops when it triggled erratt with HS_FFER6.
912 * That could cause the I/Os dropped by the firmware.
913 * Error iocb (I/O) on txcmplq and let the SCSI layer
914 * retry it after re-establishing link.
915 */
916 pring = &psli->ring[psli->fcp_ring];
917 lpfc_sli_abort_iocb_ring(phba, pring);
918
919 /*
920 * There was a firmware error. Take the hba offline and then
921 * attempt to restart it.
922 */
923 lpfc_offline_prep(phba);
924 lpfc_offline(phba);
925 lpfc_sli_brdrestart(phba);
926 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
927 lpfc_unblock_mgmt_io(phba);
928 return;
929 }
930 lpfc_unblock_mgmt_io(phba);
931 } else if (phba->work_hs & HS_CRIT_TEMP) {
932 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
933 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
934 temp_event_data.event_code = LPFC_CRIT_TEMP;
935 temp_event_data.data = (uint32_t)temperature;
936
937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
938 "0406 Adapter maximum temperature exceeded "
939 "(%ld), taking this port offline "
940 "Data: x%x x%x x%x\n",
941 temperature, phba->work_hs,
942 phba->work_status[0], phba->work_status[1]);
943
944 shost = lpfc_shost_from_vport(phba->pport);
945 fc_host_post_vendor_event(shost, fc_get_event_number(),
946 sizeof(temp_event_data),
947 (char *) &temp_event_data,
948 SCSI_NL_VID_TYPE_PCI
949 | PCI_VENDOR_ID_EMULEX);
950
951 spin_lock_irq(&phba->hbalock);
952 phba->over_temp_state = HBA_OVER_TEMP;
953 spin_unlock_irq(&phba->hbalock);
954 lpfc_offline_eratt(phba);
955
956 } else {
957 /* The if clause above forces this code path when the status
958 * failure is a value other than FFER6. Do not call the offline
959 * twice. This is the adapter hardware error path.
960 */
961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
962 "0457 Adapter Hardware Error "
963 "Data: x%x x%x x%x\n",
964 phba->work_hs,
965 phba->work_status[0], phba->work_status[1]);
966
967 event_data = FC_REG_DUMP_EVENT;
968 shost = lpfc_shost_from_vport(vport);
969 fc_host_post_vendor_event(shost, fc_get_event_number(),
970 sizeof(event_data), (char *) &event_data,
971 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
972
973 lpfc_offline_eratt(phba);
974 }
975 return;
976 }
977
978 /**
979 * lpfc_handle_latt: The HBA link event handler.
980 * @phba: pointer to lpfc hba data structure.
981 *
982 * This routine is invoked from the worker thread to handle a HBA host
983 * attention link event.
984 **/
985 void
986 lpfc_handle_latt(struct lpfc_hba *phba)
987 {
988 struct lpfc_vport *vport = phba->pport;
989 struct lpfc_sli *psli = &phba->sli;
990 LPFC_MBOXQ_t *pmb;
991 volatile uint32_t control;
992 struct lpfc_dmabuf *mp;
993 int rc = 0;
994
995 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
996 if (!pmb) {
997 rc = 1;
998 goto lpfc_handle_latt_err_exit;
999 }
1000
1001 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1002 if (!mp) {
1003 rc = 2;
1004 goto lpfc_handle_latt_free_pmb;
1005 }
1006
1007 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1008 if (!mp->virt) {
1009 rc = 3;
1010 goto lpfc_handle_latt_free_mp;
1011 }
1012
1013 /* Cleanup any outstanding ELS commands */
1014 lpfc_els_flush_all_cmd(phba);
1015
1016 psli->slistat.link_event++;
1017 lpfc_read_la(phba, pmb, mp);
1018 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1019 pmb->vport = vport;
1020 /* Block ELS IOCBs until we have processed this mbox command */
1021 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1022 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1023 if (rc == MBX_NOT_FINISHED) {
1024 rc = 4;
1025 goto lpfc_handle_latt_free_mbuf;
1026 }
1027
1028 /* Clear Link Attention in HA REG */
1029 spin_lock_irq(&phba->hbalock);
1030 writel(HA_LATT, phba->HAregaddr);
1031 readl(phba->HAregaddr); /* flush */
1032 spin_unlock_irq(&phba->hbalock);
1033
1034 return;
1035
1036 lpfc_handle_latt_free_mbuf:
1037 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1038 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1039 lpfc_handle_latt_free_mp:
1040 kfree(mp);
1041 lpfc_handle_latt_free_pmb:
1042 mempool_free(pmb, phba->mbox_mem_pool);
1043 lpfc_handle_latt_err_exit:
1044 /* Enable Link attention interrupts */
1045 spin_lock_irq(&phba->hbalock);
1046 psli->sli_flag |= LPFC_PROCESS_LA;
1047 control = readl(phba->HCregaddr);
1048 control |= HC_LAINT_ENA;
1049 writel(control, phba->HCregaddr);
1050 readl(phba->HCregaddr); /* flush */
1051
1052 /* Clear Link Attention in HA REG */
1053 writel(HA_LATT, phba->HAregaddr);
1054 readl(phba->HAregaddr); /* flush */
1055 spin_unlock_irq(&phba->hbalock);
1056 lpfc_linkdown(phba);
1057 phba->link_state = LPFC_HBA_ERROR;
1058
1059 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1060 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1061
1062 return;
1063 }
1064
1065 /**
1066 * lpfc_parse_vpd: Parse VPD (Vital Product Data).
1067 * @phba: pointer to lpfc hba data structure.
1068 * @vpd: pointer to the vital product data.
1069 * @len: length of the vital product data in bytes.
1070 *
1071 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1072 * an array of characters. In this routine, the ModelName, ProgramType, and
1073 * ModelDesc, etc. fields of the phba data structure will be populated.
1074 *
1075 * Return codes
1076 * 0 - pointer to the VPD passed in is NULL
1077 * 1 - success
1078 **/
1079 static int
1080 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1081 {
1082 uint8_t lenlo, lenhi;
1083 int Length;
1084 int i, j;
1085 int finished = 0;
1086 int index = 0;
1087
1088 if (!vpd)
1089 return 0;
1090
1091 /* Vital Product */
1092 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1093 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1094 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1095 (uint32_t) vpd[3]);
1096 while (!finished && (index < (len - 4))) {
1097 switch (vpd[index]) {
1098 case 0x82:
1099 case 0x91:
1100 index += 1;
1101 lenlo = vpd[index];
1102 index += 1;
1103 lenhi = vpd[index];
1104 index += 1;
1105 i = ((((unsigned short)lenhi) << 8) + lenlo);
1106 index += i;
1107 break;
1108 case 0x90:
1109 index += 1;
1110 lenlo = vpd[index];
1111 index += 1;
1112 lenhi = vpd[index];
1113 index += 1;
1114 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1115 if (Length > len - index)
1116 Length = len - index;
1117 while (Length > 0) {
1118 /* Look for Serial Number */
1119 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1120 index += 2;
1121 i = vpd[index];
1122 index += 1;
1123 j = 0;
1124 Length -= (3+i);
1125 while(i--) {
1126 phba->SerialNumber[j++] = vpd[index++];
1127 if (j == 31)
1128 break;
1129 }
1130 phba->SerialNumber[j] = 0;
1131 continue;
1132 }
1133 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1134 phba->vpd_flag |= VPD_MODEL_DESC;
1135 index += 2;
1136 i = vpd[index];
1137 index += 1;
1138 j = 0;
1139 Length -= (3+i);
1140 while(i--) {
1141 phba->ModelDesc[j++] = vpd[index++];
1142 if (j == 255)
1143 break;
1144 }
1145 phba->ModelDesc[j] = 0;
1146 continue;
1147 }
1148 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1149 phba->vpd_flag |= VPD_MODEL_NAME;
1150 index += 2;
1151 i = vpd[index];
1152 index += 1;
1153 j = 0;
1154 Length -= (3+i);
1155 while(i--) {
1156 phba->ModelName[j++] = vpd[index++];
1157 if (j == 79)
1158 break;
1159 }
1160 phba->ModelName[j] = 0;
1161 continue;
1162 }
1163 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1164 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1165 index += 2;
1166 i = vpd[index];
1167 index += 1;
1168 j = 0;
1169 Length -= (3+i);
1170 while(i--) {
1171 phba->ProgramType[j++] = vpd[index++];
1172 if (j == 255)
1173 break;
1174 }
1175 phba->ProgramType[j] = 0;
1176 continue;
1177 }
1178 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1179 phba->vpd_flag |= VPD_PORT;
1180 index += 2;
1181 i = vpd[index];
1182 index += 1;
1183 j = 0;
1184 Length -= (3+i);
1185 while(i--) {
1186 phba->Port[j++] = vpd[index++];
1187 if (j == 19)
1188 break;
1189 }
1190 phba->Port[j] = 0;
1191 continue;
1192 }
1193 else {
1194 index += 2;
1195 i = vpd[index];
1196 index += 1;
1197 index += i;
1198 Length -= (3 + i);
1199 }
1200 }
1201 finished = 0;
1202 break;
1203 case 0x78:
1204 finished = 1;
1205 break;
1206 default:
1207 index ++;
1208 break;
1209 }
1210 }
1211
1212 return(1);
1213 }
1214
1215 /**
1216 * lpfc_get_hba_model_desc: Retrieve HBA device model name and description.
1217 * @phba: pointer to lpfc hba data structure.
1218 * @mdp: pointer to the data structure to hold the derived model name.
1219 * @descp: pointer to the data structure to hold the derived description.
1220 *
1221 * This routine retrieves HBA's description based on its registered PCI device
1222 * ID. The @descp passed into this function points to an array of 256 chars. It
1223 * shall be returned with the model name, maximum speed, and the host bus type.
1224 * The @mdp passed into this function points to an array of 80 chars. When the
1225 * function returns, the @mdp will be filled with the model name.
1226 **/
1227 static void
1228 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1229 {
1230 lpfc_vpd_t *vp;
1231 uint16_t dev_id = phba->pcidev->device;
1232 int max_speed;
1233 int GE = 0;
1234 struct {
1235 char * name;
1236 int max_speed;
1237 char * bus;
1238 } m = {"<Unknown>", 0, ""};
1239
1240 if (mdp && mdp[0] != '\0'
1241 && descp && descp[0] != '\0')
1242 return;
1243
1244 if (phba->lmt & LMT_10Gb)
1245 max_speed = 10;
1246 else if (phba->lmt & LMT_8Gb)
1247 max_speed = 8;
1248 else if (phba->lmt & LMT_4Gb)
1249 max_speed = 4;
1250 else if (phba->lmt & LMT_2Gb)
1251 max_speed = 2;
1252 else
1253 max_speed = 1;
1254
1255 vp = &phba->vpd;
1256
1257 switch (dev_id) {
1258 case PCI_DEVICE_ID_FIREFLY:
1259 m = (typeof(m)){"LP6000", max_speed, "PCI"};
1260 break;
1261 case PCI_DEVICE_ID_SUPERFLY:
1262 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1263 m = (typeof(m)){"LP7000", max_speed, "PCI"};
1264 else
1265 m = (typeof(m)){"LP7000E", max_speed, "PCI"};
1266 break;
1267 case PCI_DEVICE_ID_DRAGONFLY:
1268 m = (typeof(m)){"LP8000", max_speed, "PCI"};
1269 break;
1270 case PCI_DEVICE_ID_CENTAUR:
1271 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1272 m = (typeof(m)){"LP9002", max_speed, "PCI"};
1273 else
1274 m = (typeof(m)){"LP9000", max_speed, "PCI"};
1275 break;
1276 case PCI_DEVICE_ID_RFLY:
1277 m = (typeof(m)){"LP952", max_speed, "PCI"};
1278 break;
1279 case PCI_DEVICE_ID_PEGASUS:
1280 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
1281 break;
1282 case PCI_DEVICE_ID_THOR:
1283 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
1284 break;
1285 case PCI_DEVICE_ID_VIPER:
1286 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
1287 break;
1288 case PCI_DEVICE_ID_PFLY:
1289 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
1290 break;
1291 case PCI_DEVICE_ID_TFLY:
1292 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
1293 break;
1294 case PCI_DEVICE_ID_HELIOS:
1295 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
1296 break;
1297 case PCI_DEVICE_ID_HELIOS_SCSP:
1298 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1299 break;
1300 case PCI_DEVICE_ID_HELIOS_DCSP:
1301 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1302 break;
1303 case PCI_DEVICE_ID_NEPTUNE:
1304 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1305 break;
1306 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1307 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1308 break;
1309 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1310 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1311 break;
1312 case PCI_DEVICE_ID_BMID:
1313 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
1314 break;
1315 case PCI_DEVICE_ID_BSMB:
1316 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
1317 break;
1318 case PCI_DEVICE_ID_ZEPHYR:
1319 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1320 break;
1321 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1322 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1323 break;
1324 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1325 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
1326 break;
1327 case PCI_DEVICE_ID_ZMID:
1328 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
1329 break;
1330 case PCI_DEVICE_ID_ZSMB:
1331 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
1332 break;
1333 case PCI_DEVICE_ID_LP101:
1334 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
1335 break;
1336 case PCI_DEVICE_ID_LP10000S:
1337 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1338 break;
1339 case PCI_DEVICE_ID_LP11000S:
1340 m = (typeof(m)){"LP11000-S", max_speed,
1341 "PCI-X2"};
1342 break;
1343 case PCI_DEVICE_ID_LPE11000S:
1344 m = (typeof(m)){"LPe11000-S", max_speed,
1345 "PCIe"};
1346 break;
1347 case PCI_DEVICE_ID_SAT:
1348 m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
1349 break;
1350 case PCI_DEVICE_ID_SAT_MID:
1351 m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
1352 break;
1353 case PCI_DEVICE_ID_SAT_SMB:
1354 m = (typeof(m)){"LPe121", max_speed, "PCIe"};
1355 break;
1356 case PCI_DEVICE_ID_SAT_DCSP:
1357 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
1358 break;
1359 case PCI_DEVICE_ID_SAT_SCSP:
1360 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
1361 break;
1362 case PCI_DEVICE_ID_SAT_S:
1363 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
1364 break;
1365 case PCI_DEVICE_ID_HORNET:
1366 m = (typeof(m)){"LP21000", max_speed, "PCIe"};
1367 GE = 1;
1368 break;
1369 case PCI_DEVICE_ID_PROTEUS_VF:
1370 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1371 break;
1372 case PCI_DEVICE_ID_PROTEUS_PF:
1373 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1374 break;
1375 case PCI_DEVICE_ID_PROTEUS_S:
1376 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1377 break;
1378 default:
1379 m = (typeof(m)){ NULL };
1380 break;
1381 }
1382
1383 if (mdp && mdp[0] == '\0')
1384 snprintf(mdp, 79,"%s", m.name);
1385 if (descp && descp[0] == '\0')
1386 snprintf(descp, 255,
1387 "Emulex %s %d%s %s %s",
1388 m.name, m.max_speed,
1389 (GE) ? "GE" : "Gb",
1390 m.bus,
1391 (GE) ? "FCoE Adapter" : "Fibre Channel Adapter");
1392 }
1393
1394 /**
1395 * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring.
1396 * @phba: pointer to lpfc hba data structure.
1397 * @pring: pointer to a IOCB ring.
1398 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1399 *
1400 * This routine posts a given number of IOCBs with the associated DMA buffer
1401 * descriptors specified by the cnt argument to the given IOCB ring.
1402 *
1403 * Return codes
1404 * The number of IOCBs NOT able to be posted to the IOCB ring.
1405 **/
1406 int
1407 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1408 {
1409 IOCB_t *icmd;
1410 struct lpfc_iocbq *iocb;
1411 struct lpfc_dmabuf *mp1, *mp2;
1412
1413 cnt += pring->missbufcnt;
1414
1415 /* While there are buffers to post */
1416 while (cnt > 0) {
1417 /* Allocate buffer for command iocb */
1418 iocb = lpfc_sli_get_iocbq(phba);
1419 if (iocb == NULL) {
1420 pring->missbufcnt = cnt;
1421 return cnt;
1422 }
1423 icmd = &iocb->iocb;
1424
1425 /* 2 buffers can be posted per command */
1426 /* Allocate buffer to post */
1427 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1428 if (mp1)
1429 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1430 if (!mp1 || !mp1->virt) {
1431 kfree(mp1);
1432 lpfc_sli_release_iocbq(phba, iocb);
1433 pring->missbufcnt = cnt;
1434 return cnt;
1435 }
1436
1437 INIT_LIST_HEAD(&mp1->list);
1438 /* Allocate buffer to post */
1439 if (cnt > 1) {
1440 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1441 if (mp2)
1442 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1443 &mp2->phys);
1444 if (!mp2 || !mp2->virt) {
1445 kfree(mp2);
1446 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1447 kfree(mp1);
1448 lpfc_sli_release_iocbq(phba, iocb);
1449 pring->missbufcnt = cnt;
1450 return cnt;
1451 }
1452
1453 INIT_LIST_HEAD(&mp2->list);
1454 } else {
1455 mp2 = NULL;
1456 }
1457
1458 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1459 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1460 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1461 icmd->ulpBdeCount = 1;
1462 cnt--;
1463 if (mp2) {
1464 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1465 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1466 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1467 cnt--;
1468 icmd->ulpBdeCount = 2;
1469 }
1470
1471 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1472 icmd->ulpLe = 1;
1473
1474 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
1475 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1476 kfree(mp1);
1477 cnt++;
1478 if (mp2) {
1479 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1480 kfree(mp2);
1481 cnt++;
1482 }
1483 lpfc_sli_release_iocbq(phba, iocb);
1484 pring->missbufcnt = cnt;
1485 return cnt;
1486 }
1487 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1488 if (mp2)
1489 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1490 }
1491 pring->missbufcnt = 0;
1492 return 0;
1493 }
1494
1495 /**
1496 * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring.
1497 * @phba: pointer to lpfc hba data structure.
1498 *
1499 * This routine posts initial receive IOCB buffers to the ELS ring. The
1500 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1501 * set to 64 IOCBs.
1502 *
1503 * Return codes
1504 * 0 - success (currently always success)
1505 **/
1506 static int
1507 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1508 {
1509 struct lpfc_sli *psli = &phba->sli;
1510
1511 /* Ring 0, ELS / CT buffers */
1512 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1513 /* Ring 2 - FCP no buffers needed */
1514
1515 return 0;
1516 }
1517
1518 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1519
1520 /**
1521 * lpfc_sha_init: Set up initial array of hash table entries.
1522 * @HashResultPointer: pointer to an array as hash table.
1523 *
1524 * This routine sets up the initial values to the array of hash table entries
1525 * for the LC HBAs.
1526 **/
1527 static void
1528 lpfc_sha_init(uint32_t * HashResultPointer)
1529 {
1530 HashResultPointer[0] = 0x67452301;
1531 HashResultPointer[1] = 0xEFCDAB89;
1532 HashResultPointer[2] = 0x98BADCFE;
1533 HashResultPointer[3] = 0x10325476;
1534 HashResultPointer[4] = 0xC3D2E1F0;
1535 }
1536
1537 /**
1538 * lpfc_sha_iterate: Iterate initial hash table with the working hash table.
1539 * @HashResultPointer: pointer to an initial/result hash table.
1540 * @HashWorkingPointer: pointer to an working hash table.
1541 *
1542 * This routine iterates an initial hash table pointed by @HashResultPointer
1543 * with the values from the working hash table pointeed by @HashWorkingPointer.
1544 * The results are putting back to the initial hash table, returned through
1545 * the @HashResultPointer as the result hash table.
1546 **/
1547 static void
1548 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1549 {
1550 int t;
1551 uint32_t TEMP;
1552 uint32_t A, B, C, D, E;
1553 t = 16;
1554 do {
1555 HashWorkingPointer[t] =
1556 S(1,
1557 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1558 8] ^
1559 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1560 } while (++t <= 79);
1561 t = 0;
1562 A = HashResultPointer[0];
1563 B = HashResultPointer[1];
1564 C = HashResultPointer[2];
1565 D = HashResultPointer[3];
1566 E = HashResultPointer[4];
1567
1568 do {
1569 if (t < 20) {
1570 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1571 } else if (t < 40) {
1572 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1573 } else if (t < 60) {
1574 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1575 } else {
1576 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1577 }
1578 TEMP += S(5, A) + E + HashWorkingPointer[t];
1579 E = D;
1580 D = C;
1581 C = S(30, B);
1582 B = A;
1583 A = TEMP;
1584 } while (++t <= 79);
1585
1586 HashResultPointer[0] += A;
1587 HashResultPointer[1] += B;
1588 HashResultPointer[2] += C;
1589 HashResultPointer[3] += D;
1590 HashResultPointer[4] += E;
1591
1592 }
1593
1594 /**
1595 * lpfc_challenge_key: Create challenge key based on WWPN of the HBA.
1596 * @RandomChallenge: pointer to the entry of host challenge random number array.
1597 * @HashWorking: pointer to the entry of the working hash array.
1598 *
1599 * This routine calculates the working hash array referred by @HashWorking
1600 * from the challenge random numbers associated with the host, referred by
1601 * @RandomChallenge. The result is put into the entry of the working hash
1602 * array and returned by reference through @HashWorking.
1603 **/
1604 static void
1605 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1606 {
1607 *HashWorking = (*RandomChallenge ^ *HashWorking);
1608 }
1609
1610 /**
1611 * lpfc_hba_init: Perform special handling for LC HBA initialization.
1612 * @phba: pointer to lpfc hba data structure.
1613 * @hbainit: pointer to an array of unsigned 32-bit integers.
1614 *
1615 * This routine performs the special handling for LC HBA initialization.
1616 **/
1617 void
1618 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1619 {
1620 int t;
1621 uint32_t *HashWorking;
1622 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
1623
1624 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
1625 if (!HashWorking)
1626 return;
1627
1628 HashWorking[0] = HashWorking[78] = *pwwnn++;
1629 HashWorking[1] = HashWorking[79] = *pwwnn;
1630
1631 for (t = 0; t < 7; t++)
1632 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1633
1634 lpfc_sha_init(hbainit);
1635 lpfc_sha_iterate(hbainit, HashWorking);
1636 kfree(HashWorking);
1637 }
1638
1639 /**
1640 * lpfc_cleanup: Performs vport cleanups before deleting a vport.
1641 * @vport: pointer to a virtual N_Port data structure.
1642 *
1643 * This routine performs the necessary cleanups before deleting the @vport.
1644 * It invokes the discovery state machine to perform necessary state
1645 * transitions and to release the ndlps associated with the @vport. Note,
1646 * the physical port is treated as @vport 0.
1647 **/
1648 void
1649 lpfc_cleanup(struct lpfc_vport *vport)
1650 {
1651 struct lpfc_hba *phba = vport->phba;
1652 struct lpfc_nodelist *ndlp, *next_ndlp;
1653 int i = 0;
1654
1655 if (phba->link_state > LPFC_LINK_DOWN)
1656 lpfc_port_link_failure(vport);
1657
1658 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1659 if (!NLP_CHK_NODE_ACT(ndlp)) {
1660 ndlp = lpfc_enable_node(vport, ndlp,
1661 NLP_STE_UNUSED_NODE);
1662 if (!ndlp)
1663 continue;
1664 spin_lock_irq(&phba->ndlp_lock);
1665 NLP_SET_FREE_REQ(ndlp);
1666 spin_unlock_irq(&phba->ndlp_lock);
1667 /* Trigger the release of the ndlp memory */
1668 lpfc_nlp_put(ndlp);
1669 continue;
1670 }
1671 spin_lock_irq(&phba->ndlp_lock);
1672 if (NLP_CHK_FREE_REQ(ndlp)) {
1673 /* The ndlp should not be in memory free mode already */
1674 spin_unlock_irq(&phba->ndlp_lock);
1675 continue;
1676 } else
1677 /* Indicate request for freeing ndlp memory */
1678 NLP_SET_FREE_REQ(ndlp);
1679 spin_unlock_irq(&phba->ndlp_lock);
1680
1681 if (vport->port_type != LPFC_PHYSICAL_PORT &&
1682 ndlp->nlp_DID == Fabric_DID) {
1683 /* Just free up ndlp with Fabric_DID for vports */
1684 lpfc_nlp_put(ndlp);
1685 continue;
1686 }
1687
1688 if (ndlp->nlp_type & NLP_FABRIC)
1689 lpfc_disc_state_machine(vport, ndlp, NULL,
1690 NLP_EVT_DEVICE_RECOVERY);
1691
1692 lpfc_disc_state_machine(vport, ndlp, NULL,
1693 NLP_EVT_DEVICE_RM);
1694
1695 }
1696
1697 /* At this point, ALL ndlp's should be gone
1698 * because of the previous NLP_EVT_DEVICE_RM.
1699 * Lets wait for this to happen, if needed.
1700 */
1701 while (!list_empty(&vport->fc_nodes)) {
1702
1703 if (i++ > 3000) {
1704 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1705 "0233 Nodelist not empty\n");
1706 list_for_each_entry_safe(ndlp, next_ndlp,
1707 &vport->fc_nodes, nlp_listp) {
1708 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
1709 LOG_NODE,
1710 "0282 did:x%x ndlp:x%p "
1711 "usgmap:x%x refcnt:%d\n",
1712 ndlp->nlp_DID, (void *)ndlp,
1713 ndlp->nlp_usg_map,
1714 atomic_read(
1715 &ndlp->kref.refcount));
1716 }
1717 break;
1718 }
1719
1720 /* Wait for any activity on ndlps to settle */
1721 msleep(10);
1722 }
1723 return;
1724 }
1725
1726 /**
1727 * lpfc_stop_vport_timers: Stop all the timers associated with a vport.
1728 * @vport: pointer to a virtual N_Port data structure.
1729 *
1730 * This routine stops all the timers associated with a @vport. This function
1731 * is invoked before disabling or deleting a @vport. Note that the physical
1732 * port is treated as @vport 0.
1733 **/
1734 void
1735 lpfc_stop_vport_timers(struct lpfc_vport *vport)
1736 {
1737 del_timer_sync(&vport->els_tmofunc);
1738 del_timer_sync(&vport->fc_fdmitmo);
1739 lpfc_can_disctmo(vport);
1740 return;
1741 }
1742
1743 /**
1744 * lpfc_stop_phba_timers: Stop all the timers associated with an HBA.
1745 * @phba: pointer to lpfc hba data structure.
1746 *
1747 * This routine stops all the timers associated with a HBA. This function is
1748 * invoked before either putting a HBA offline or unloading the driver.
1749 **/
1750 static void
1751 lpfc_stop_phba_timers(struct lpfc_hba *phba)
1752 {
1753 del_timer_sync(&phba->fcp_poll_timer);
1754 lpfc_stop_vport_timers(phba->pport);
1755 del_timer_sync(&phba->sli.mbox_tmo);
1756 del_timer_sync(&phba->fabric_block_timer);
1757 phba->hb_outstanding = 0;
1758 del_timer_sync(&phba->hb_tmofunc);
1759 del_timer_sync(&phba->eratt_poll);
1760 return;
1761 }
1762
1763 /**
1764 * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked.
1765 * @phba: pointer to lpfc hba data structure.
1766 *
1767 * This routine marks a HBA's management interface as blocked. Once the HBA's
1768 * management interface is marked as blocked, all the user space access to
1769 * the HBA, whether they are from sysfs interface or libdfc interface will
1770 * all be blocked. The HBA is set to block the management interface when the
1771 * driver prepares the HBA interface for online or offline.
1772 **/
1773 static void
1774 lpfc_block_mgmt_io(struct lpfc_hba * phba)
1775 {
1776 unsigned long iflag;
1777
1778 spin_lock_irqsave(&phba->hbalock, iflag);
1779 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
1780 spin_unlock_irqrestore(&phba->hbalock, iflag);
1781 }
1782
1783 /**
1784 * lpfc_online: Initialize and bring a HBA online.
1785 * @phba: pointer to lpfc hba data structure.
1786 *
1787 * This routine initializes the HBA and brings a HBA online. During this
1788 * process, the management interface is blocked to prevent user space access
1789 * to the HBA interfering with the driver initialization.
1790 *
1791 * Return codes
1792 * 0 - successful
1793 * 1 - failed
1794 **/
1795 int
1796 lpfc_online(struct lpfc_hba *phba)
1797 {
1798 struct lpfc_vport *vport;
1799 struct lpfc_vport **vports;
1800 int i;
1801
1802 if (!phba)
1803 return 0;
1804 vport = phba->pport;
1805
1806 if (!(vport->fc_flag & FC_OFFLINE_MODE))
1807 return 0;
1808
1809 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1810 "0458 Bring Adapter online\n");
1811
1812 lpfc_block_mgmt_io(phba);
1813
1814 if (!lpfc_sli_queue_setup(phba)) {
1815 lpfc_unblock_mgmt_io(phba);
1816 return 1;
1817 }
1818
1819 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */
1820 lpfc_unblock_mgmt_io(phba);
1821 return 1;
1822 }
1823
1824 vports = lpfc_create_vport_work_array(phba);
1825 if (vports != NULL)
1826 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1827 struct Scsi_Host *shost;
1828 shost = lpfc_shost_from_vport(vports[i]);
1829 spin_lock_irq(shost->host_lock);
1830 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
1831 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
1832 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1833 spin_unlock_irq(shost->host_lock);
1834 }
1835 lpfc_destroy_vport_work_array(phba, vports);
1836
1837 lpfc_unblock_mgmt_io(phba);
1838 return 0;
1839 }
1840
1841 /**
1842 * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked.
1843 * @phba: pointer to lpfc hba data structure.
1844 *
1845 * This routine marks a HBA's management interface as not blocked. Once the
1846 * HBA's management interface is marked as not blocked, all the user space
1847 * access to the HBA, whether they are from sysfs interface or libdfc
1848 * interface will be allowed. The HBA is set to block the management interface
1849 * when the driver prepares the HBA interface for online or offline and then
1850 * set to unblock the management interface afterwards.
1851 **/
1852 void
1853 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
1854 {
1855 unsigned long iflag;
1856
1857 spin_lock_irqsave(&phba->hbalock, iflag);
1858 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
1859 spin_unlock_irqrestore(&phba->hbalock, iflag);
1860 }
1861
1862 /**
1863 * lpfc_offline_prep: Prepare a HBA to be brought offline.
1864 * @phba: pointer to lpfc hba data structure.
1865 *
1866 * This routine is invoked to prepare a HBA to be brought offline. It performs
1867 * unregistration login to all the nodes on all vports and flushes the mailbox
1868 * queue to make it ready to be brought offline.
1869 **/
1870 void
1871 lpfc_offline_prep(struct lpfc_hba * phba)
1872 {
1873 struct lpfc_vport *vport = phba->pport;
1874 struct lpfc_nodelist *ndlp, *next_ndlp;
1875 struct lpfc_vport **vports;
1876 int i;
1877
1878 if (vport->fc_flag & FC_OFFLINE_MODE)
1879 return;
1880
1881 lpfc_block_mgmt_io(phba);
1882
1883 lpfc_linkdown(phba);
1884
1885 /* Issue an unreg_login to all nodes on all vports */
1886 vports = lpfc_create_vport_work_array(phba);
1887 if (vports != NULL) {
1888 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1889 struct Scsi_Host *shost;
1890
1891 if (vports[i]->load_flag & FC_UNLOADING)
1892 continue;
1893 shost = lpfc_shost_from_vport(vports[i]);
1894 list_for_each_entry_safe(ndlp, next_ndlp,
1895 &vports[i]->fc_nodes,
1896 nlp_listp) {
1897 if (!NLP_CHK_NODE_ACT(ndlp))
1898 continue;
1899 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1900 continue;
1901 if (ndlp->nlp_type & NLP_FABRIC) {
1902 lpfc_disc_state_machine(vports[i], ndlp,
1903 NULL, NLP_EVT_DEVICE_RECOVERY);
1904 lpfc_disc_state_machine(vports[i], ndlp,
1905 NULL, NLP_EVT_DEVICE_RM);
1906 }
1907 spin_lock_irq(shost->host_lock);
1908 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1909 spin_unlock_irq(shost->host_lock);
1910 lpfc_unreg_rpi(vports[i], ndlp);
1911 }
1912 }
1913 }
1914 lpfc_destroy_vport_work_array(phba, vports);
1915
1916 lpfc_sli_flush_mbox_queue(phba);
1917 }
1918
1919 /**
1920 * lpfc_offline: Bring a HBA offline.
1921 * @phba: pointer to lpfc hba data structure.
1922 *
1923 * This routine actually brings a HBA offline. It stops all the timers
1924 * associated with the HBA, brings down the SLI layer, and eventually
1925 * marks the HBA as in offline state for the upper layer protocol.
1926 **/
1927 void
1928 lpfc_offline(struct lpfc_hba *phba)
1929 {
1930 struct Scsi_Host *shost;
1931 struct lpfc_vport **vports;
1932 int i;
1933
1934 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1935 return;
1936
1937 /* stop all timers associated with this hba */
1938 lpfc_stop_phba_timers(phba);
1939 vports = lpfc_create_vport_work_array(phba);
1940 if (vports != NULL)
1941 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
1942 lpfc_stop_vport_timers(vports[i]);
1943 lpfc_destroy_vport_work_array(phba, vports);
1944 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1945 "0460 Bring Adapter offline\n");
1946 /* Bring down the SLI Layer and cleanup. The HBA is offline
1947 now. */
1948 lpfc_sli_hba_down(phba);
1949 spin_lock_irq(&phba->hbalock);
1950 phba->work_ha = 0;
1951 spin_unlock_irq(&phba->hbalock);
1952 vports = lpfc_create_vport_work_array(phba);
1953 if (vports != NULL)
1954 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1955 shost = lpfc_shost_from_vport(vports[i]);
1956 spin_lock_irq(shost->host_lock);
1957 vports[i]->work_port_events = 0;
1958 vports[i]->fc_flag |= FC_OFFLINE_MODE;
1959 spin_unlock_irq(shost->host_lock);
1960 }
1961 lpfc_destroy_vport_work_array(phba, vports);
1962 }
1963
1964 /**
1965 * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists.
1966 * @phba: pointer to lpfc hba data structure.
1967 *
1968 * This routine is to free all the SCSI buffers and IOCBs from the driver
1969 * list back to kernel. It is called from lpfc_pci_remove_one to free
1970 * the internal resources before the device is removed from the system.
1971 *
1972 * Return codes
1973 * 0 - successful (for now, it always returns 0)
1974 **/
1975 static int
1976 lpfc_scsi_free(struct lpfc_hba *phba)
1977 {
1978 struct lpfc_scsi_buf *sb, *sb_next;
1979 struct lpfc_iocbq *io, *io_next;
1980
1981 spin_lock_irq(&phba->hbalock);
1982 /* Release all the lpfc_scsi_bufs maintained by this host. */
1983 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
1984 list_del(&sb->list);
1985 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
1986 sb->dma_handle);
1987 kfree(sb);
1988 phba->total_scsi_bufs--;
1989 }
1990
1991 /* Release all the lpfc_iocbq entries maintained by this host. */
1992 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
1993 list_del(&io->list);
1994 kfree(io);
1995 phba->total_iocbq_bufs--;
1996 }
1997
1998 spin_unlock_irq(&phba->hbalock);
1999
2000 return 0;
2001 }
2002
2003 /**
2004 * lpfc_create_port: Create an FC port.
2005 * @phba: pointer to lpfc hba data structure.
2006 * @instance: a unique integer ID to this FC port.
2007 * @dev: pointer to the device data structure.
2008 *
2009 * This routine creates a FC port for the upper layer protocol. The FC port
2010 * can be created on top of either a physical port or a virtual port provided
2011 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2012 * and associates the FC port created before adding the shost into the SCSI
2013 * layer.
2014 *
2015 * Return codes
2016 * @vport - pointer to the virtual N_Port data structure.
2017 * NULL - port create failed.
2018 **/
2019 struct lpfc_vport *
2020 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2021 {
2022 struct lpfc_vport *vport;
2023 struct Scsi_Host *shost;
2024 int error = 0;
2025
2026 if (dev != &phba->pcidev->dev)
2027 shost = scsi_host_alloc(&lpfc_vport_template,
2028 sizeof(struct lpfc_vport));
2029 else
2030 shost = scsi_host_alloc(&lpfc_template,
2031 sizeof(struct lpfc_vport));
2032 if (!shost)
2033 goto out;
2034
2035 vport = (struct lpfc_vport *) shost->hostdata;
2036 vport->phba = phba;
2037 vport->load_flag |= FC_LOADING;
2038 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2039 vport->fc_rscn_flush = 0;
2040
2041 lpfc_get_vport_cfgparam(vport);
2042 shost->unique_id = instance;
2043 shost->max_id = LPFC_MAX_TARGET;
2044 shost->max_lun = vport->cfg_max_luns;
2045 shost->this_id = -1;
2046 shost->max_cmd_len = 16;
2047
2048 /*
2049 * Set initial can_queue value since 0 is no longer supported and
2050 * scsi_add_host will fail. This will be adjusted later based on the
2051 * max xri value determined in hba setup.
2052 */
2053 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2054 if (dev != &phba->pcidev->dev) {
2055 shost->transportt = lpfc_vport_transport_template;
2056 vport->port_type = LPFC_NPIV_PORT;
2057 } else {
2058 shost->transportt = lpfc_transport_template;
2059 vport->port_type = LPFC_PHYSICAL_PORT;
2060 }
2061
2062 /* Initialize all internally managed lists. */
2063 INIT_LIST_HEAD(&vport->fc_nodes);
2064 spin_lock_init(&vport->work_port_lock);
2065
2066 init_timer(&vport->fc_disctmo);
2067 vport->fc_disctmo.function = lpfc_disc_timeout;
2068 vport->fc_disctmo.data = (unsigned long)vport;
2069
2070 init_timer(&vport->fc_fdmitmo);
2071 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2072 vport->fc_fdmitmo.data = (unsigned long)vport;
2073
2074 init_timer(&vport->els_tmofunc);
2075 vport->els_tmofunc.function = lpfc_els_timeout;
2076 vport->els_tmofunc.data = (unsigned long)vport;
2077
2078 error = scsi_add_host(shost, dev);
2079 if (error)
2080 goto out_put_shost;
2081
2082 spin_lock_irq(&phba->hbalock);
2083 list_add_tail(&vport->listentry, &phba->port_list);
2084 spin_unlock_irq(&phba->hbalock);
2085 return vport;
2086
2087 out_put_shost:
2088 scsi_host_put(shost);
2089 out:
2090 return NULL;
2091 }
2092
2093 /**
2094 * destroy_port: Destroy an FC port.
2095 * @vport: pointer to an lpfc virtual N_Port data structure.
2096 *
2097 * This routine destroys a FC port from the upper layer protocol. All the
2098 * resources associated with the port are released.
2099 **/
2100 void
2101 destroy_port(struct lpfc_vport *vport)
2102 {
2103 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2104 struct lpfc_hba *phba = vport->phba;
2105
2106 lpfc_debugfs_terminate(vport);
2107 fc_remove_host(shost);
2108 scsi_remove_host(shost);
2109
2110 spin_lock_irq(&phba->hbalock);
2111 list_del_init(&vport->listentry);
2112 spin_unlock_irq(&phba->hbalock);
2113
2114 lpfc_cleanup(vport);
2115 return;
2116 }
2117
2118 /**
2119 * lpfc_get_instance: Get a unique integer ID.
2120 *
2121 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2122 * uses the kernel idr facility to perform the task.
2123 *
2124 * Return codes:
2125 * instance - a unique integer ID allocated as the new instance.
2126 * -1 - lpfc get instance failed.
2127 **/
2128 int
2129 lpfc_get_instance(void)
2130 {
2131 int instance = 0;
2132
2133 /* Assign an unused number */
2134 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2135 return -1;
2136 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2137 return -1;
2138 return instance;
2139 }
2140
2141 /**
2142 * lpfc_scan_finished: method for SCSI layer to detect whether scan is done.
2143 * @shost: pointer to SCSI host data structure.
2144 * @time: elapsed time of the scan in jiffies.
2145 *
2146 * This routine is called by the SCSI layer with a SCSI host to determine
2147 * whether the scan host is finished.
2148 *
2149 * Note: there is no scan_start function as adapter initialization will have
2150 * asynchronously kicked off the link initialization.
2151 *
2152 * Return codes
2153 * 0 - SCSI host scan is not over yet.
2154 * 1 - SCSI host scan is over.
2155 **/
2156 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2157 {
2158 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2159 struct lpfc_hba *phba = vport->phba;
2160 int stat = 0;
2161
2162 spin_lock_irq(shost->host_lock);
2163
2164 if (vport->load_flag & FC_UNLOADING) {
2165 stat = 1;
2166 goto finished;
2167 }
2168 if (time >= 30 * HZ) {
2169 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2170 "0461 Scanning longer than 30 "
2171 "seconds. Continuing initialization\n");
2172 stat = 1;
2173 goto finished;
2174 }
2175 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2176 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2177 "0465 Link down longer than 15 "
2178 "seconds. Continuing initialization\n");
2179 stat = 1;
2180 goto finished;
2181 }
2182
2183 if (vport->port_state != LPFC_VPORT_READY)
2184 goto finished;
2185 if (vport->num_disc_nodes || vport->fc_prli_sent)
2186 goto finished;
2187 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2188 goto finished;
2189 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2190 goto finished;
2191
2192 stat = 1;
2193
2194 finished:
2195 spin_unlock_irq(shost->host_lock);
2196 return stat;
2197 }
2198
2199 /**
2200 * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port.
2201 * @shost: pointer to SCSI host data structure.
2202 *
2203 * This routine initializes a given SCSI host attributes on a FC port. The
2204 * SCSI host can be either on top of a physical port or a virtual port.
2205 **/
2206 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2207 {
2208 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2209 struct lpfc_hba *phba = vport->phba;
2210 /*
2211 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2212 */
2213
2214 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2215 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2216 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2217
2218 memset(fc_host_supported_fc4s(shost), 0,
2219 sizeof(fc_host_supported_fc4s(shost)));
2220 fc_host_supported_fc4s(shost)[2] = 1;
2221 fc_host_supported_fc4s(shost)[7] = 1;
2222
2223 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2224 sizeof fc_host_symbolic_name(shost));
2225
2226 fc_host_supported_speeds(shost) = 0;
2227 if (phba->lmt & LMT_10Gb)
2228 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2229 if (phba->lmt & LMT_8Gb)
2230 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2231 if (phba->lmt & LMT_4Gb)
2232 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2233 if (phba->lmt & LMT_2Gb)
2234 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2235 if (phba->lmt & LMT_1Gb)
2236 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2237
2238 fc_host_maxframe_size(shost) =
2239 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2240 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2241
2242 /* This value is also unchanging */
2243 memset(fc_host_active_fc4s(shost), 0,
2244 sizeof(fc_host_active_fc4s(shost)));
2245 fc_host_active_fc4s(shost)[2] = 1;
2246 fc_host_active_fc4s(shost)[7] = 1;
2247
2248 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2249 spin_lock_irq(shost->host_lock);
2250 vport->load_flag &= ~FC_LOADING;
2251 spin_unlock_irq(shost->host_lock);
2252 }
2253
2254 /**
2255 * lpfc_enable_msix: Enable MSI-X interrupt mode.
2256 * @phba: pointer to lpfc hba data structure.
2257 *
2258 * This routine is invoked to enable the MSI-X interrupt vectors. The kernel
2259 * function pci_enable_msix() is called to enable the MSI-X vectors. Note that
2260 * pci_enable_msix(), once invoked, enables either all or nothing, depending
2261 * on the current availability of PCI vector resources. The device driver is
2262 * responsible for calling the individual request_irq() to register each MSI-X
2263 * vector with a interrupt handler, which is done in this function. Note that
2264 * later when device is unloading, the driver should always call free_irq()
2265 * on all MSI-X vectors it has done request_irq() on before calling
2266 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
2267 * will be left with MSI-X enabled and leaks its vectors.
2268 *
2269 * Return codes
2270 * 0 - sucessful
2271 * other values - error
2272 **/
2273 static int
2274 lpfc_enable_msix(struct lpfc_hba *phba)
2275 {
2276 int rc, i;
2277 LPFC_MBOXQ_t *pmb;
2278
2279 /* Set up MSI-X multi-message vectors */
2280 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2281 phba->msix_entries[i].entry = i;
2282
2283 /* Configure MSI-X capability structure */
2284 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
2285 ARRAY_SIZE(phba->msix_entries));
2286 if (rc) {
2287 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2288 "0420 PCI enable MSI-X failed (%d)\n", rc);
2289 goto msi_fail_out;
2290 } else
2291 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2292 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2293 "0477 MSI-X entry[%d]: vector=x%x "
2294 "message=%d\n", i,
2295 phba->msix_entries[i].vector,
2296 phba->msix_entries[i].entry);
2297 /*
2298 * Assign MSI-X vectors to interrupt handlers
2299 */
2300
2301 /* vector-0 is associated to slow-path handler */
2302 rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler,
2303 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba);
2304 if (rc) {
2305 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2306 "0421 MSI-X slow-path request_irq failed "
2307 "(%d)\n", rc);
2308 goto msi_fail_out;
2309 }
2310
2311 /* vector-1 is associated to fast-path handler */
2312 rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler,
2313 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba);
2314
2315 if (rc) {
2316 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2317 "0429 MSI-X fast-path request_irq failed "
2318 "(%d)\n", rc);
2319 goto irq_fail_out;
2320 }
2321
2322 /*
2323 * Configure HBA MSI-X attention conditions to messages
2324 */
2325 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2326
2327 if (!pmb) {
2328 rc = -ENOMEM;
2329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2330 "0474 Unable to allocate memory for issuing "
2331 "MBOX_CONFIG_MSI command\n");
2332 goto mem_fail_out;
2333 }
2334 rc = lpfc_config_msi(phba, pmb);
2335 if (rc)
2336 goto mbx_fail_out;
2337 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
2338 if (rc != MBX_SUCCESS) {
2339 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2340 "0351 Config MSI mailbox command failed, "
2341 "mbxCmd x%x, mbxStatus x%x\n",
2342 pmb->mb.mbxCommand, pmb->mb.mbxStatus);
2343 goto mbx_fail_out;
2344 }
2345
2346 /* Free memory allocated for mailbox command */
2347 mempool_free(pmb, phba->mbox_mem_pool);
2348 return rc;
2349
2350 mbx_fail_out:
2351 /* Free memory allocated for mailbox command */
2352 mempool_free(pmb, phba->mbox_mem_pool);
2353
2354 mem_fail_out:
2355 /* free the irq already requested */
2356 free_irq(phba->msix_entries[1].vector, phba);
2357
2358 irq_fail_out:
2359 /* free the irq already requested */
2360 free_irq(phba->msix_entries[0].vector, phba);
2361
2362 msi_fail_out:
2363 /* Unconfigure MSI-X capability structure */
2364 pci_disable_msix(phba->pcidev);
2365 return rc;
2366 }
2367
2368 /**
2369 * lpfc_disable_msix: Disable MSI-X interrupt mode.
2370 * @phba: pointer to lpfc hba data structure.
2371 *
2372 * This routine is invoked to release the MSI-X vectors and then disable the
2373 * MSI-X interrupt mode.
2374 **/
2375 static void
2376 lpfc_disable_msix(struct lpfc_hba *phba)
2377 {
2378 int i;
2379
2380 /* Free up MSI-X multi-message vectors */
2381 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2382 free_irq(phba->msix_entries[i].vector, phba);
2383 /* Disable MSI-X */
2384 pci_disable_msix(phba->pcidev);
2385 }
2386
2387 /**
2388 * lpfc_enable_msi: Enable MSI interrupt mode.
2389 * @phba: pointer to lpfc hba data structure.
2390 *
2391 * This routine is invoked to enable the MSI interrupt mode. The kernel
2392 * function pci_enable_msi() is called to enable the MSI vector. The
2393 * device driver is responsible for calling the request_irq() to register
2394 * MSI vector with a interrupt the handler, which is done in this function.
2395 *
2396 * Return codes
2397 * 0 - sucessful
2398 * other values - error
2399 */
2400 static int
2401 lpfc_enable_msi(struct lpfc_hba *phba)
2402 {
2403 int rc;
2404
2405 rc = pci_enable_msi(phba->pcidev);
2406 if (!rc)
2407 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2408 "0462 PCI enable MSI mode success.\n");
2409 else {
2410 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2411 "0471 PCI enable MSI mode failed (%d)\n", rc);
2412 return rc;
2413 }
2414
2415 rc = request_irq(phba->pcidev->irq, lpfc_intr_handler,
2416 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2417 if (rc) {
2418 pci_disable_msi(phba->pcidev);
2419 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2420 "0478 MSI request_irq failed (%d)\n", rc);
2421 }
2422 return rc;
2423 }
2424
2425 /**
2426 * lpfc_disable_msi: Disable MSI interrupt mode.
2427 * @phba: pointer to lpfc hba data structure.
2428 *
2429 * This routine is invoked to disable the MSI interrupt mode. The driver
2430 * calls free_irq() on MSI vector it has done request_irq() on before
2431 * calling pci_disable_msi(). Failure to do so results in a BUG_ON() and
2432 * a device will be left with MSI enabled and leaks its vector.
2433 */
2434
2435 static void
2436 lpfc_disable_msi(struct lpfc_hba *phba)
2437 {
2438 free_irq(phba->pcidev->irq, phba);
2439 pci_disable_msi(phba->pcidev);
2440 return;
2441 }
2442
2443 /**
2444 * lpfc_log_intr_mode: Log the active interrupt mode
2445 * @phba: pointer to lpfc hba data structure.
2446 * @intr_mode: active interrupt mode adopted.
2447 *
2448 * This routine it invoked to log the currently used active interrupt mode
2449 * to the device.
2450 */
2451 static void
2452 lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
2453 {
2454 switch (intr_mode) {
2455 case 0:
2456 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2457 "0470 Enable INTx interrupt mode.\n");
2458 break;
2459 case 1:
2460 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2461 "0481 Enabled MSI interrupt mode.\n");
2462 break;
2463 case 2:
2464 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2465 "0480 Enabled MSI-X interrupt mode.\n");
2466 break;
2467 default:
2468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2469 "0482 Illegal interrupt mode.\n");
2470 break;
2471 }
2472 return;
2473 }
2474
2475 static void
2476 lpfc_stop_port(struct lpfc_hba *phba)
2477 {
2478 /* Clear all interrupt enable conditions */
2479 writel(0, phba->HCregaddr);
2480 readl(phba->HCregaddr); /* flush */
2481 /* Clear all pending interrupts */
2482 writel(0xffffffff, phba->HAregaddr);
2483 readl(phba->HAregaddr); /* flush */
2484
2485 /* Reset some HBA SLI setup states */
2486 lpfc_stop_phba_timers(phba);
2487 phba->pport->work_port_events = 0;
2488
2489 return;
2490 }
2491
2492 /**
2493 * lpfc_enable_intr: Enable device interrupt.
2494 * @phba: pointer to lpfc hba data structure.
2495 *
2496 * This routine is invoked to enable device interrupt and associate driver's
2497 * interrupt handler(s) to interrupt vector(s). Depends on the interrupt
2498 * mode configured to the driver, the driver will try to fallback from the
2499 * configured interrupt mode to an interrupt mode which is supported by the
2500 * platform, kernel, and device in the order of: MSI-X -> MSI -> IRQ.
2501 *
2502 * Return codes
2503 * 0 - sucessful
2504 * other values - error
2505 **/
2506 static uint32_t
2507 lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
2508 {
2509 uint32_t intr_mode = LPFC_INTR_ERROR;
2510 int retval;
2511
2512 if (cfg_mode == 2) {
2513 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
2514 retval = lpfc_sli_config_port(phba, 3);
2515 if (!retval) {
2516 /* Now, try to enable MSI-X interrupt mode */
2517 retval = lpfc_enable_msix(phba);
2518 if (!retval) {
2519 /* Indicate initialization to MSI-X mode */
2520 phba->intr_type = MSIX;
2521 intr_mode = 2;
2522 }
2523 }
2524 }
2525
2526 /* Fallback to MSI if MSI-X initialization failed */
2527 if (cfg_mode >= 1 && phba->intr_type == NONE) {
2528 retval = lpfc_enable_msi(phba);
2529 if (!retval) {
2530 /* Indicate initialization to MSI mode */
2531 phba->intr_type = MSI;
2532 intr_mode = 1;
2533 }
2534 }
2535
2536 /* Fallback to INTx if both MSI-X/MSI initalization failed */
2537 if (phba->intr_type == NONE) {
2538 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
2539 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2540 if (!retval) {
2541 /* Indicate initialization to INTx mode */
2542 phba->intr_type = INTx;
2543 intr_mode = 0;
2544 }
2545 }
2546 return intr_mode;
2547 }
2548
2549 /**
2550 * lpfc_disable_intr: Disable device interrupt.
2551 * @phba: pointer to lpfc hba data structure.
2552 *
2553 * This routine is invoked to disable device interrupt and disassociate the
2554 * driver's interrupt handler(s) from interrupt vector(s). Depending on the
2555 * interrupt mode, the driver will release the interrupt vector(s) for the
2556 * message signaled interrupt.
2557 **/
2558 static void
2559 lpfc_disable_intr(struct lpfc_hba *phba)
2560 {
2561 /* Disable the currently initialized interrupt mode */
2562 if (phba->intr_type == MSIX)
2563 lpfc_disable_msix(phba);
2564 else if (phba->intr_type == MSI)
2565 lpfc_disable_msi(phba);
2566 else if (phba->intr_type == INTx)
2567 free_irq(phba->pcidev->irq, phba);
2568
2569 /* Reset interrupt management states */
2570 phba->intr_type = NONE;
2571 phba->sli.slistat.sli_intr = 0;
2572
2573 return;
2574 }
2575
2576 /**
2577 * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem.
2578 * @pdev: pointer to PCI device
2579 * @pid: pointer to PCI device identifier
2580 *
2581 * This routine is to be registered to the kernel's PCI subsystem. When an
2582 * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at
2583 * PCI device-specific information of the device and driver to see if the
2584 * driver state that it can support this kind of device. If the match is
2585 * successful, the driver core invokes this routine. If this routine
2586 * determines it can claim the HBA, it does all the initialization that it
2587 * needs to do to handle the HBA properly.
2588 *
2589 * Return code
2590 * 0 - driver can claim the device
2591 * negative value - driver can not claim the device
2592 **/
2593 static int __devinit
2594 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2595 {
2596 struct lpfc_vport *vport = NULL;
2597 struct lpfc_hba *phba;
2598 struct lpfc_sli *psli;
2599 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
2600 struct Scsi_Host *shost = NULL;
2601 void *ptr;
2602 unsigned long bar0map_len, bar2map_len;
2603 int error = -ENODEV, retval;
2604 int i, hbq_count;
2605 uint16_t iotag;
2606 uint32_t cfg_mode, intr_mode;
2607 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
2608 struct lpfc_adapter_event_header adapter_event;
2609
2610 if (pci_enable_device_mem(pdev))
2611 goto out;
2612 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
2613 goto out_disable_device;
2614
2615 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
2616 if (!phba)
2617 goto out_release_regions;
2618
2619 atomic_set(&phba->fast_event_count, 0);
2620 spin_lock_init(&phba->hbalock);
2621
2622 /* Initialize ndlp management spinlock */
2623 spin_lock_init(&phba->ndlp_lock);
2624
2625 phba->pcidev = pdev;
2626
2627 /* Assign an unused board number */
2628 if ((phba->brd_no = lpfc_get_instance()) < 0)
2629 goto out_free_phba;
2630
2631 INIT_LIST_HEAD(&phba->port_list);
2632 init_waitqueue_head(&phba->wait_4_mlo_m_q);
2633 /*
2634 * Get all the module params for configuring this host and then
2635 * establish the host.
2636 */
2637 lpfc_get_cfgparam(phba);
2638 phba->max_vpi = LPFC_MAX_VPI;
2639
2640 /* Initialize timers used by driver */
2641 init_timer(&phba->hb_tmofunc);
2642 phba->hb_tmofunc.function = lpfc_hb_timeout;
2643 phba->hb_tmofunc.data = (unsigned long)phba;
2644
2645 psli = &phba->sli;
2646 init_timer(&psli->mbox_tmo);
2647 psli->mbox_tmo.function = lpfc_mbox_timeout;
2648 psli->mbox_tmo.data = (unsigned long) phba;
2649 init_timer(&phba->fcp_poll_timer);
2650 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2651 phba->fcp_poll_timer.data = (unsigned long) phba;
2652 init_timer(&phba->fabric_block_timer);
2653 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
2654 phba->fabric_block_timer.data = (unsigned long) phba;
2655 init_timer(&phba->eratt_poll);
2656 phba->eratt_poll.function = lpfc_poll_eratt;
2657 phba->eratt_poll.data = (unsigned long) phba;
2658
2659 pci_set_master(pdev);
2660 pci_save_state(pdev);
2661 pci_try_set_mwi(pdev);
2662
2663 if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
2664 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
2665 goto out_idr_remove;
2666
2667 /*
2668 * Get the bus address of Bar0 and Bar2 and the number of bytes
2669 * required by each mapping.
2670 */
2671 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
2672 bar0map_len = pci_resource_len(phba->pcidev, 0);
2673
2674 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
2675 bar2map_len = pci_resource_len(phba->pcidev, 2);
2676
2677 /* Map HBA SLIM to a kernel virtual address. */
2678 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
2679 if (!phba->slim_memmap_p) {
2680 error = -ENODEV;
2681 dev_printk(KERN_ERR, &pdev->dev,
2682 "ioremap failed for SLIM memory.\n");
2683 goto out_idr_remove;
2684 }
2685
2686 /* Map HBA Control Registers to a kernel virtual address. */
2687 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
2688 if (!phba->ctrl_regs_memmap_p) {
2689 error = -ENODEV;
2690 dev_printk(KERN_ERR, &pdev->dev,
2691 "ioremap failed for HBA control registers.\n");
2692 goto out_iounmap_slim;
2693 }
2694
2695 /* Allocate memory for SLI-2 structures */
2696 phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev,
2697 SLI2_SLIM_SIZE,
2698 &phba->slim2p.phys,
2699 GFP_KERNEL);
2700 if (!phba->slim2p.virt)
2701 goto out_iounmap;
2702
2703 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
2704 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
2705 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
2706 phba->IOCBs = (phba->slim2p.virt +
2707 offsetof(struct lpfc_sli2_slim, IOCBs));
2708
2709 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev,
2710 lpfc_sli_hbq_size(),
2711 &phba->hbqslimp.phys,
2712 GFP_KERNEL);
2713 if (!phba->hbqslimp.virt)
2714 goto out_free_slim;
2715
2716 hbq_count = lpfc_sli_hbq_count();
2717 ptr = phba->hbqslimp.virt;
2718 for (i = 0; i < hbq_count; ++i) {
2719 phba->hbqs[i].hbq_virt = ptr;
2720 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
2721 ptr += (lpfc_hbq_defs[i]->entry_count *
2722 sizeof(struct lpfc_hbq_entry));
2723 }
2724 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
2725 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
2726
2727 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
2728
2729 INIT_LIST_HEAD(&phba->hbqbuf_in_list);
2730
2731 /* Initialize the SLI Layer to run with lpfc HBAs. */
2732 lpfc_sli_setup(phba);
2733 lpfc_sli_queue_setup(phba);
2734
2735 retval = lpfc_mem_alloc(phba);
2736 if (retval) {
2737 error = retval;
2738 goto out_free_hbqslimp;
2739 }
2740
2741 /* Initialize and populate the iocb list per host. */
2742 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
2743 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
2744 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
2745 if (iocbq_entry == NULL) {
2746 printk(KERN_ERR "%s: only allocated %d iocbs of "
2747 "expected %d count. Unloading driver.\n",
2748 __func__, i, LPFC_IOCB_LIST_CNT);
2749 error = -ENOMEM;
2750 goto out_free_iocbq;
2751 }
2752
2753 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
2754 if (iotag == 0) {
2755 kfree (iocbq_entry);
2756 printk(KERN_ERR "%s: failed to allocate IOTAG. "
2757 "Unloading driver.\n",
2758 __func__);
2759 error = -ENOMEM;
2760 goto out_free_iocbq;
2761 }
2762
2763 spin_lock_irq(&phba->hbalock);
2764 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
2765 phba->total_iocbq_bufs++;
2766 spin_unlock_irq(&phba->hbalock);
2767 }
2768
2769 /* Initialize HBA structure */
2770 phba->fc_edtov = FF_DEF_EDTOV;
2771 phba->fc_ratov = FF_DEF_RATOV;
2772 phba->fc_altov = FF_DEF_ALTOV;
2773 phba->fc_arbtov = FF_DEF_ARBTOV;
2774
2775 INIT_LIST_HEAD(&phba->work_list);
2776 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
2777 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
2778
2779 /* Initialize the wait queue head for the kernel thread */
2780 init_waitqueue_head(&phba->work_waitq);
2781
2782 /* Startup the kernel thread for this host adapter. */
2783 phba->worker_thread = kthread_run(lpfc_do_work, phba,
2784 "lpfc_worker_%d", phba->brd_no);
2785 if (IS_ERR(phba->worker_thread)) {
2786 error = PTR_ERR(phba->worker_thread);
2787 goto out_free_iocbq;
2788 }
2789
2790 /* Initialize the list of scsi buffers used by driver for scsi IO. */
2791 spin_lock_init(&phba->scsi_buf_list_lock);
2792 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
2793
2794 /* Initialize list of fabric iocbs */
2795 INIT_LIST_HEAD(&phba->fabric_iocb_list);
2796
2797 /* Initialize list to save ELS buffers */
2798 INIT_LIST_HEAD(&phba->elsbuf);
2799
2800 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
2801 if (!vport)
2802 goto out_kthread_stop;
2803
2804 shost = lpfc_shost_from_vport(vport);
2805 phba->pport = vport;
2806 lpfc_debugfs_initialize(vport);
2807
2808 pci_set_drvdata(pdev, shost);
2809
2810 phba->MBslimaddr = phba->slim_memmap_p;
2811 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
2812 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
2813 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
2814 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
2815
2816 /* Configure sysfs attributes */
2817 if (lpfc_alloc_sysfs_attr(vport)) {
2818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2819 "1476 Failed to allocate sysfs attr\n");
2820 error = -ENOMEM;
2821 goto out_destroy_port;
2822 }
2823
2824 cfg_mode = phba->cfg_use_msi;
2825 while (true) {
2826 /* Configure and enable interrupt */
2827 intr_mode = lpfc_enable_intr(phba, cfg_mode);
2828 if (intr_mode == LPFC_INTR_ERROR) {
2829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2830 "0426 Failed to enable interrupt.\n");
2831 goto out_free_sysfs_attr;
2832 }
2833 /* HBA SLI setup */
2834 if (lpfc_sli_hba_setup(phba)) {
2835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2836 "1477 Failed to set up hba\n");
2837 error = -ENODEV;
2838 goto out_remove_device;
2839 }
2840
2841 /* Wait 50ms for the interrupts of previous mailbox commands */
2842 msleep(50);
2843 /* Check active interrupts received */
2844 if (phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
2845 /* Log the current active interrupt mode */
2846 phba->intr_mode = intr_mode;
2847 lpfc_log_intr_mode(phba, intr_mode);
2848 break;
2849 } else {
2850 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2851 "0451 Configure interrupt mode (%d) "
2852 "failed active interrupt test.\n",
2853 intr_mode);
2854 if (intr_mode == 0) {
2855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2856 "0479 Failed to enable "
2857 "interrupt.\n");
2858 error = -ENODEV;
2859 goto out_remove_device;
2860 }
2861 /* Stop HBA SLI setups */
2862 lpfc_stop_port(phba);
2863 /* Disable the current interrupt mode */
2864 lpfc_disable_intr(phba);
2865 /* Try next level of interrupt mode */
2866 cfg_mode = --intr_mode;
2867 }
2868 }
2869
2870 /*
2871 * hba setup may have changed the hba_queue_depth so we need to adjust
2872 * the value of can_queue.
2873 */
2874 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2875 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
2876
2877 if (lpfc_prot_mask && lpfc_prot_guard) {
2878 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2879 "1478 Registering BlockGuard with the "
2880 "SCSI layer\n");
2881
2882 scsi_host_set_prot(shost, lpfc_prot_mask);
2883 scsi_host_set_guard(shost, lpfc_prot_guard);
2884 }
2885 }
2886
2887 if (!_dump_buf_data) {
2888 int pagecnt = 10;
2889 while (pagecnt) {
2890 spin_lock_init(&_dump_buf_lock);
2891 _dump_buf_data =
2892 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
2893 if (_dump_buf_data) {
2894 printk(KERN_ERR "BLKGRD allocated %d pages for "
2895 "_dump_buf_data at 0x%p\n",
2896 (1 << pagecnt), _dump_buf_data);
2897 _dump_buf_data_order = pagecnt;
2898 memset(_dump_buf_data, 0, ((1 << PAGE_SHIFT)
2899 << pagecnt));
2900 break;
2901 } else {
2902 --pagecnt;
2903 }
2904
2905 }
2906
2907 if (!_dump_buf_data_order)
2908 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
2909 "memory for hexdump\n");
2910
2911 } else {
2912 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
2913 "\n", _dump_buf_data);
2914 }
2915
2916
2917 if (!_dump_buf_dif) {
2918 int pagecnt = 10;
2919 while (pagecnt) {
2920 _dump_buf_dif =
2921 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
2922 if (_dump_buf_dif) {
2923 printk(KERN_ERR "BLKGRD allocated %d pages for "
2924 "_dump_buf_dif at 0x%p\n",
2925 (1 << pagecnt), _dump_buf_dif);
2926 _dump_buf_dif_order = pagecnt;
2927 memset(_dump_buf_dif, 0, ((1 << PAGE_SHIFT)
2928 << pagecnt));
2929 break;
2930 } else {
2931 --pagecnt;
2932 }
2933
2934 }
2935
2936 if (!_dump_buf_dif_order)
2937 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
2938 "memory for hexdump\n");
2939
2940 } else {
2941 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
2942 _dump_buf_dif);
2943 }
2944
2945 lpfc_host_attrib_init(shost);
2946
2947 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
2948 spin_lock_irq(shost->host_lock);
2949 lpfc_poll_start_timer(phba);
2950 spin_unlock_irq(shost->host_lock);
2951 }
2952
2953 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2954 "0428 Perform SCSI scan\n");
2955 /* Send board arrival event to upper layer */
2956 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
2957 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
2958 fc_host_post_vendor_event(shost, fc_get_event_number(),
2959 sizeof(adapter_event),
2960 (char *) &adapter_event,
2961 LPFC_NL_VENDOR_ID);
2962
2963 return 0;
2964
2965 out_remove_device:
2966 spin_lock_irq(shost->host_lock);
2967 vport->load_flag |= FC_UNLOADING;
2968 spin_unlock_irq(shost->host_lock);
2969 lpfc_stop_phba_timers(phba);
2970 phba->pport->work_port_events = 0;
2971 lpfc_disable_intr(phba);
2972 lpfc_sli_hba_down(phba);
2973 lpfc_sli_brdrestart(phba);
2974 out_free_sysfs_attr:
2975 lpfc_free_sysfs_attr(vport);
2976 out_destroy_port:
2977 destroy_port(vport);
2978 out_kthread_stop:
2979 kthread_stop(phba->worker_thread);
2980 out_free_iocbq:
2981 list_for_each_entry_safe(iocbq_entry, iocbq_next,
2982 &phba->lpfc_iocb_list, list) {
2983 kfree(iocbq_entry);
2984 phba->total_iocbq_bufs--;
2985 }
2986 lpfc_mem_free(phba);
2987 out_free_hbqslimp:
2988 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
2989 phba->hbqslimp.virt, phba->hbqslimp.phys);
2990 out_free_slim:
2991 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
2992 phba->slim2p.virt, phba->slim2p.phys);
2993 out_iounmap:
2994 iounmap(phba->ctrl_regs_memmap_p);
2995 out_iounmap_slim:
2996 iounmap(phba->slim_memmap_p);
2997 out_idr_remove:
2998 idr_remove(&lpfc_hba_index, phba->brd_no);
2999 out_free_phba:
3000 kfree(phba);
3001 out_release_regions:
3002 pci_release_selected_regions(pdev, bars);
3003 out_disable_device:
3004 pci_disable_device(pdev);
3005 out:
3006 pci_set_drvdata(pdev, NULL);
3007 if (shost)
3008 scsi_host_put(shost);
3009 return error;
3010 }
3011
3012 /**
3013 * lpfc_pci_remove_one: lpfc PCI func to unregister device from PCI subsystem.
3014 * @pdev: pointer to PCI device
3015 *
3016 * This routine is to be registered to the kernel's PCI subsystem. When an
3017 * Emulex HBA is removed from PCI bus, it performs all the necessary cleanup
3018 * for the HBA device to be removed from the PCI subsystem properly.
3019 **/
3020 static void __devexit
3021 lpfc_pci_remove_one(struct pci_dev *pdev)
3022 {
3023 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3024 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3025 struct lpfc_vport **vports;
3026 struct lpfc_hba *phba = vport->phba;
3027 int i;
3028 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
3029
3030 spin_lock_irq(&phba->hbalock);
3031 vport->load_flag |= FC_UNLOADING;
3032 spin_unlock_irq(&phba->hbalock);
3033
3034 lpfc_free_sysfs_attr(vport);
3035
3036 kthread_stop(phba->worker_thread);
3037
3038 /* Release all the vports against this physical port */
3039 vports = lpfc_create_vport_work_array(phba);
3040 if (vports != NULL)
3041 for (i = 1; i <= phba->max_vpi && vports[i] != NULL; i++)
3042 fc_vport_terminate(vports[i]->fc_vport);
3043 lpfc_destroy_vport_work_array(phba, vports);
3044
3045 /* Remove FC host and then SCSI host with the physical port */
3046 fc_remove_host(shost);
3047 scsi_remove_host(shost);
3048 lpfc_cleanup(vport);
3049
3050 /*
3051 * Bring down the SLI Layer. This step disable all interrupts,
3052 * clears the rings, discards all mailbox commands, and resets
3053 * the HBA.
3054 */
3055 lpfc_sli_hba_down(phba);
3056 lpfc_sli_brdrestart(phba);
3057
3058 lpfc_stop_phba_timers(phba);
3059 spin_lock_irq(&phba->hbalock);
3060 list_del_init(&vport->listentry);
3061 spin_unlock_irq(&phba->hbalock);
3062
3063 lpfc_debugfs_terminate(vport);
3064
3065 /* Disable interrupt */
3066 lpfc_disable_intr(phba);
3067
3068 pci_set_drvdata(pdev, NULL);
3069 scsi_host_put(shost);
3070
3071 /*
3072 * Call scsi_free before mem_free since scsi bufs are released to their
3073 * corresponding pools here.
3074 */
3075 lpfc_scsi_free(phba);
3076 lpfc_mem_free(phba);
3077
3078 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
3079 phba->hbqslimp.virt, phba->hbqslimp.phys);
3080
3081 /* Free resources associated with SLI2 interface */
3082 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
3083 phba->slim2p.virt, phba->slim2p.phys);
3084
3085 /* unmap adapter SLIM and Control Registers */
3086 iounmap(phba->ctrl_regs_memmap_p);
3087 iounmap(phba->slim_memmap_p);
3088
3089 idr_remove(&lpfc_hba_index, phba->brd_no);
3090
3091 kfree(phba);
3092
3093 pci_release_selected_regions(pdev, bars);
3094 pci_disable_device(pdev);
3095 }
3096
3097 /**
3098 * lpfc_pci_suspend_one: lpfc PCI func to suspend device for power management.
3099 * @pdev: pointer to PCI device
3100 * @msg: power management message
3101 *
3102 * This routine is to be registered to the kernel's PCI subsystem to support
3103 * system Power Management (PM). When PM invokes this method, it quiesces the
3104 * device by stopping the driver's worker thread for the device, turning off
3105 * device's interrupt and DMA, and bring the device offline. Note that as the
3106 * driver implements the minimum PM requirements to a power-aware driver's PM
3107 * support for suspend/resume -- all the possible PM messages (SUSPEND,
3108 * HIBERNATE, FREEZE) to the suspend() method call will be treated as SUSPEND
3109 * and the driver will fully reinitialize its device during resume() method
3110 * call, the driver will set device to PCI_D3hot state in PCI config space
3111 * instead of setting it according to the @msg provided by the PM.
3112 *
3113 * Return code
3114 * 0 - driver suspended the device
3115 * Error otherwise
3116 **/
3117 static int
3118 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
3119 {
3120 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3121 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3122
3123 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3124 "0473 PCI device Power Management suspend.\n");
3125
3126 /* Bring down the device */
3127 lpfc_offline_prep(phba);
3128 lpfc_offline(phba);
3129 kthread_stop(phba->worker_thread);
3130
3131 /* Disable interrupt from device */
3132 lpfc_disable_intr(phba);
3133
3134 /* Save device state to PCI config space */
3135 pci_save_state(pdev);
3136 pci_set_power_state(pdev, PCI_D3hot);
3137
3138 return 0;
3139 }
3140
3141 /**
3142 * lpfc_pci_resume_one: lpfc PCI func to resume device for power management.
3143 * @pdev: pointer to PCI device
3144 *
3145 * This routine is to be registered to the kernel's PCI subsystem to support
3146 * system Power Management (PM). When PM invokes this method, it restores
3147 * the device's PCI config space state and fully reinitializes the device
3148 * and brings it online. Note that as the driver implements the minimum PM
3149 * requirements to a power-aware driver's PM for suspend/resume -- all
3150 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
3151 * method call will be treated as SUSPEND and the driver will fully
3152 * reinitialize its device during resume() method call, the device will be
3153 * set to PCI_D0 directly in PCI config space before restoring the state.
3154 *
3155 * Return code
3156 * 0 - driver suspended the device
3157 * Error otherwise
3158 **/
3159 static int
3160 lpfc_pci_resume_one(struct pci_dev *pdev)
3161 {
3162 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3163 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3164 uint32_t intr_mode;
3165 int error;
3166
3167 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3168 "0452 PCI device Power Management resume.\n");
3169
3170 /* Restore device state from PCI config space */
3171 pci_set_power_state(pdev, PCI_D0);
3172 pci_restore_state(pdev);
3173 if (pdev->is_busmaster)
3174 pci_set_master(pdev);
3175
3176 /* Startup the kernel thread for this host adapter. */
3177 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3178 "lpfc_worker_%d", phba->brd_no);
3179 if (IS_ERR(phba->worker_thread)) {
3180 error = PTR_ERR(phba->worker_thread);
3181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3182 "0434 PM resume failed to start worker "
3183 "thread: error=x%x.\n", error);
3184 return error;
3185 }
3186
3187 /* Configure and enable interrupt */
3188 intr_mode = lpfc_enable_intr(phba, phba->intr_mode);
3189 if (intr_mode == LPFC_INTR_ERROR) {
3190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3191 "0430 PM resume Failed to enable interrupt\n");
3192 return -EIO;
3193 } else
3194 phba->intr_mode = intr_mode;
3195
3196 /* Restart HBA and bring it online */
3197 lpfc_sli_brdrestart(phba);
3198 lpfc_online(phba);
3199
3200 /* Log the current active interrupt mode */
3201 lpfc_log_intr_mode(phba, phba->intr_mode);
3202
3203 return 0;
3204 }
3205
3206 /**
3207 * lpfc_io_error_detected: Driver method for handling PCI I/O error detected.
3208 * @pdev: pointer to PCI device.
3209 * @state: the current PCI connection state.
3210 *
3211 * This routine is registered to the PCI subsystem for error handling. This
3212 * function is called by the PCI subsystem after a PCI bus error affecting
3213 * this device has been detected. When this function is invoked, it will
3214 * need to stop all the I/Os and interrupt(s) to the device. Once that is
3215 * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to
3216 * perform proper recovery as desired.
3217 *
3218 * Return codes
3219 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
3220 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
3221 **/
3222 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
3223 pci_channel_state_t state)
3224 {
3225 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3226 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3227 struct lpfc_sli *psli = &phba->sli;
3228 struct lpfc_sli_ring *pring;
3229
3230 if (state == pci_channel_io_perm_failure) {
3231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3232 "0472 PCI channel I/O permanent failure\n");
3233 /* Block all SCSI devices' I/Os on the host */
3234 lpfc_scsi_dev_block(phba);
3235 /* Clean up all driver's outstanding SCSI I/Os */
3236 lpfc_sli_flush_fcp_rings(phba);
3237 return PCI_ERS_RESULT_DISCONNECT;
3238 }
3239
3240 pci_disable_device(pdev);
3241 /*
3242 * There may be I/Os dropped by the firmware.
3243 * Error iocb (I/O) on txcmplq and let the SCSI layer
3244 * retry it after re-establishing link.
3245 */
3246 pring = &psli->ring[psli->fcp_ring];
3247 lpfc_sli_abort_iocb_ring(phba, pring);
3248
3249 /* Disable interrupt */
3250 lpfc_disable_intr(phba);
3251
3252 /* Request a slot reset. */
3253 return PCI_ERS_RESULT_NEED_RESET;
3254 }
3255
3256 /**
3257 * lpfc_io_slot_reset: Restart a PCI device from scratch.
3258 * @pdev: pointer to PCI device.
3259 *
3260 * This routine is registered to the PCI subsystem for error handling. This is
3261 * called after PCI bus has been reset to restart the PCI card from scratch,
3262 * as if from a cold-boot. During the PCI subsystem error recovery, after the
3263 * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform
3264 * proper error recovery and then call this routine before calling the .resume
3265 * method to recover the device. This function will initialize the HBA device,
3266 * enable the interrupt, but it will just put the HBA to offline state without
3267 * passing any I/O traffic.
3268 *
3269 * Return codes
3270 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
3271 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
3272 */
3273 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
3274 {
3275 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3276 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3277 struct lpfc_sli *psli = &phba->sli;
3278 uint32_t intr_mode;
3279
3280 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
3281 if (pci_enable_device_mem(pdev)) {
3282 printk(KERN_ERR "lpfc: Cannot re-enable "
3283 "PCI device after reset.\n");
3284 return PCI_ERS_RESULT_DISCONNECT;
3285 }
3286
3287 pci_restore_state(pdev);
3288 if (pdev->is_busmaster)
3289 pci_set_master(pdev);
3290
3291 spin_lock_irq(&phba->hbalock);
3292 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
3293 spin_unlock_irq(&phba->hbalock);
3294
3295 /* Configure and enable interrupt */
3296 intr_mode = lpfc_enable_intr(phba, phba->intr_mode);
3297 if (intr_mode == LPFC_INTR_ERROR) {
3298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3299 "0427 Cannot re-enable interrupt after "
3300 "slot reset.\n");
3301 return PCI_ERS_RESULT_DISCONNECT;
3302 } else
3303 phba->intr_mode = intr_mode;
3304
3305 /* Take device offline; this will perform cleanup */
3306 lpfc_offline(phba);
3307 lpfc_sli_brdrestart(phba);
3308
3309 /* Log the current active interrupt mode */
3310 lpfc_log_intr_mode(phba, phba->intr_mode);
3311
3312 return PCI_ERS_RESULT_RECOVERED;
3313 }
3314
3315 /**
3316 * lpfc_io_resume: Resume PCI I/O operation.
3317 * @pdev: pointer to PCI device
3318 *
3319 * This routine is registered to the PCI subsystem for error handling. It is
3320 * called when kernel error recovery tells the lpfc driver that it is ok to
3321 * resume normal PCI operation after PCI bus error recovery. After this call,
3322 * traffic can start to flow from this device again.
3323 */
3324 static void lpfc_io_resume(struct pci_dev *pdev)
3325 {
3326 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3327 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3328
3329 lpfc_online(phba);
3330 }
3331
3332 static struct pci_device_id lpfc_id_table[] = {
3333 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
3334 PCI_ANY_ID, PCI_ANY_ID, },
3335 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
3336 PCI_ANY_ID, PCI_ANY_ID, },
3337 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
3338 PCI_ANY_ID, PCI_ANY_ID, },
3339 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
3340 PCI_ANY_ID, PCI_ANY_ID, },
3341 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
3342 PCI_ANY_ID, PCI_ANY_ID, },
3343 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
3344 PCI_ANY_ID, PCI_ANY_ID, },
3345 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
3346 PCI_ANY_ID, PCI_ANY_ID, },
3347 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
3348 PCI_ANY_ID, PCI_ANY_ID, },
3349 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
3350 PCI_ANY_ID, PCI_ANY_ID, },
3351 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
3352 PCI_ANY_ID, PCI_ANY_ID, },
3353 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
3354 PCI_ANY_ID, PCI_ANY_ID, },
3355 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
3356 PCI_ANY_ID, PCI_ANY_ID, },
3357 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
3358 PCI_ANY_ID, PCI_ANY_ID, },
3359 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
3360 PCI_ANY_ID, PCI_ANY_ID, },
3361 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
3362 PCI_ANY_ID, PCI_ANY_ID, },
3363 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
3364 PCI_ANY_ID, PCI_ANY_ID, },
3365 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
3366 PCI_ANY_ID, PCI_ANY_ID, },
3367 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
3368 PCI_ANY_ID, PCI_ANY_ID, },
3369 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
3370 PCI_ANY_ID, PCI_ANY_ID, },
3371 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
3372 PCI_ANY_ID, PCI_ANY_ID, },
3373 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
3374 PCI_ANY_ID, PCI_ANY_ID, },
3375 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
3376 PCI_ANY_ID, PCI_ANY_ID, },
3377 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
3378 PCI_ANY_ID, PCI_ANY_ID, },
3379 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
3380 PCI_ANY_ID, PCI_ANY_ID, },
3381 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
3382 PCI_ANY_ID, PCI_ANY_ID, },
3383 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
3384 PCI_ANY_ID, PCI_ANY_ID, },
3385 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
3386 PCI_ANY_ID, PCI_ANY_ID, },
3387 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
3388 PCI_ANY_ID, PCI_ANY_ID, },
3389 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
3390 PCI_ANY_ID, PCI_ANY_ID, },
3391 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
3392 PCI_ANY_ID, PCI_ANY_ID, },
3393 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
3394 PCI_ANY_ID, PCI_ANY_ID, },
3395 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
3396 PCI_ANY_ID, PCI_ANY_ID, },
3397 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
3398 PCI_ANY_ID, PCI_ANY_ID, },
3399 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
3400 PCI_ANY_ID, PCI_ANY_ID, },
3401 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
3402 PCI_ANY_ID, PCI_ANY_ID, },
3403 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
3404 PCI_ANY_ID, PCI_ANY_ID, },
3405 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
3406 PCI_ANY_ID, PCI_ANY_ID, },
3407 { 0 }
3408 };
3409
3410 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
3411
3412 static struct pci_error_handlers lpfc_err_handler = {
3413 .error_detected = lpfc_io_error_detected,
3414 .slot_reset = lpfc_io_slot_reset,
3415 .resume = lpfc_io_resume,
3416 };
3417
3418 static struct pci_driver lpfc_driver = {
3419 .name = LPFC_DRIVER_NAME,
3420 .id_table = lpfc_id_table,
3421 .probe = lpfc_pci_probe_one,
3422 .remove = __devexit_p(lpfc_pci_remove_one),
3423 .suspend = lpfc_pci_suspend_one,
3424 .resume = lpfc_pci_resume_one,
3425 .err_handler = &lpfc_err_handler,
3426 };
3427
3428 /**
3429 * lpfc_init: lpfc module initialization routine.
3430 *
3431 * This routine is to be invoked when the lpfc module is loaded into the
3432 * kernel. The special kernel macro module_init() is used to indicate the
3433 * role of this routine to the kernel as lpfc module entry point.
3434 *
3435 * Return codes
3436 * 0 - successful
3437 * -ENOMEM - FC attach transport failed
3438 * all others - failed
3439 */
3440 static int __init
3441 lpfc_init(void)
3442 {
3443 int error = 0;
3444
3445 printk(LPFC_MODULE_DESC "\n");
3446 printk(LPFC_COPYRIGHT "\n");
3447
3448 if (lpfc_enable_npiv) {
3449 lpfc_transport_functions.vport_create = lpfc_vport_create;
3450 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
3451 }
3452 lpfc_transport_template =
3453 fc_attach_transport(&lpfc_transport_functions);
3454 if (lpfc_transport_template == NULL)
3455 return -ENOMEM;
3456 if (lpfc_enable_npiv) {
3457 lpfc_vport_transport_template =
3458 fc_attach_transport(&lpfc_vport_transport_functions);
3459 if (lpfc_vport_transport_template == NULL) {
3460 fc_release_transport(lpfc_transport_template);
3461 return -ENOMEM;
3462 }
3463 }
3464 error = pci_register_driver(&lpfc_driver);
3465 if (error) {
3466 fc_release_transport(lpfc_transport_template);
3467 if (lpfc_enable_npiv)
3468 fc_release_transport(lpfc_vport_transport_template);
3469 }
3470
3471 return error;
3472 }
3473
3474 /**
3475 * lpfc_exit: lpfc module removal routine.
3476 *
3477 * This routine is invoked when the lpfc module is removed from the kernel.
3478 * The special kernel macro module_exit() is used to indicate the role of
3479 * this routine to the kernel as lpfc module exit point.
3480 */
3481 static void __exit
3482 lpfc_exit(void)
3483 {
3484 pci_unregister_driver(&lpfc_driver);
3485 fc_release_transport(lpfc_transport_template);
3486 if (lpfc_enable_npiv)
3487 fc_release_transport(lpfc_vport_transport_template);
3488 if (_dump_buf_data) {
3489 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data "
3490 "at 0x%p\n",
3491 (1L << _dump_buf_data_order), _dump_buf_data);
3492 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
3493 }
3494
3495 if (_dump_buf_dif) {
3496 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif "
3497 "at 0x%p\n",
3498 (1L << _dump_buf_dif_order), _dump_buf_dif);
3499 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
3500 }
3501 }
3502
3503 module_init(lpfc_init);
3504 module_exit(lpfc_exit);
3505 MODULE_LICENSE("GPL");
3506 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
3507 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
3508 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Support for the Chinese Samsung S3C2440 based development boards