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Merge git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6
[linux-2.6/mini2440.git] / drivers / scsi / lpfc / lpfc_init.c
blob86d1bdcbf2d819003355d81c06318c451575d23d
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 - dump memory mailbox command completion handler
246 * @phba: pointer to lpfc hba data structure.
247 * @pmboxq: pointer to the driver internal queue element for mailbox command.
248 *
249 * This is the completion handler for dump mailbox command for getting
250 * wake up parameters. When this command complete, the response contain
251 * Option rom version of the HBA. This function translate the version number
252 * into a human readable string and store it in OptionROMVersion.
253 **/
254 static void
255 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
256 {
257 struct prog_id *prg;
258 uint32_t prog_id_word;
259 char dist = ' ';
260 /* character array used for decoding dist type. */
261 char dist_char[] = "nabx";
262
263 if (pmboxq->mb.mbxStatus != MBX_SUCCESS) {
264 mempool_free(pmboxq, phba->mbox_mem_pool);
265 return;
266 }
267
268 prg = (struct prog_id *) &prog_id_word;
269
270 /* word 7 contain option rom version */
271 prog_id_word = pmboxq->mb.un.varWords[7];
272
273 /* Decode the Option rom version word to a readable string */
274 if (prg->dist < 4)
275 dist = dist_char[prg->dist];
276
277 if ((prg->dist == 3) && (prg->num == 0))
278 sprintf(phba->OptionROMVersion, "%d.%d%d",
279 prg->ver, prg->rev, prg->lev);
280 else
281 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
282 prg->ver, prg->rev, prg->lev,
283 dist, prg->num);
284 mempool_free(pmboxq, phba->mbox_mem_pool);
285 return;
286 }
287
288 /**
289 * lpfc_config_port_post - Perform lpfc initialization after config port
290 * @phba: pointer to lpfc hba data structure.
291 *
292 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
293 * command call. It performs all internal resource and state setups on the
294 * port: post IOCB buffers, enable appropriate host interrupt attentions,
295 * ELS ring timers, etc.
296 *
297 * Return codes
298 * 0 - success.
299 * Any other value - error.
300 **/
301 int
302 lpfc_config_port_post(struct lpfc_hba *phba)
303 {
304 struct lpfc_vport *vport = phba->pport;
305 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
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
364 /* Update the fc_host data structures with new wwn. */
365 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
366 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
367
368 /* If no serial number in VPD data, use low 6 bytes of WWNN */
369 /* This should be consolidated into parse_vpd ? - mr */
370 if (phba->SerialNumber[0] == 0) {
371 uint8_t *outptr;
372
373 outptr = &vport->fc_nodename.u.s.IEEE[0];
374 for (i = 0; i < 12; i++) {
375 status = *outptr++;
376 j = ((status & 0xf0) >> 4);
377 if (j <= 9)
378 phba->SerialNumber[i] =
379 (char)((uint8_t) 0x30 + (uint8_t) j);
380 else
381 phba->SerialNumber[i] =
382 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
383 i++;
384 j = (status & 0xf);
385 if (j <= 9)
386 phba->SerialNumber[i] =
387 (char)((uint8_t) 0x30 + (uint8_t) j);
388 else
389 phba->SerialNumber[i] =
390 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
391 }
392 }
393
394 lpfc_read_config(phba, pmb);
395 pmb->vport = vport;
396 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
397 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
398 "0453 Adapter failed to init, mbxCmd x%x "
399 "READ_CONFIG, mbxStatus x%x\n",
400 mb->mbxCommand, mb->mbxStatus);
401 phba->link_state = LPFC_HBA_ERROR;
402 mempool_free( pmb, phba->mbox_mem_pool);
403 return -EIO;
404 }
405
406 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
407 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
408 phba->cfg_hba_queue_depth =
409 mb->un.varRdConfig.max_xri + 1;
410
411 phba->lmt = mb->un.varRdConfig.lmt;
412
413 /* Get the default values for Model Name and Description */
414 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
415
416 if ((phba->cfg_link_speed > LINK_SPEED_10G)
417 || ((phba->cfg_link_speed == LINK_SPEED_1G)
418 && !(phba->lmt & LMT_1Gb))
419 || ((phba->cfg_link_speed == LINK_SPEED_2G)
420 && !(phba->lmt & LMT_2Gb))
421 || ((phba->cfg_link_speed == LINK_SPEED_4G)
422 && !(phba->lmt & LMT_4Gb))
423 || ((phba->cfg_link_speed == LINK_SPEED_8G)
424 && !(phba->lmt & LMT_8Gb))
425 || ((phba->cfg_link_speed == LINK_SPEED_10G)
426 && !(phba->lmt & LMT_10Gb))) {
427 /* Reset link speed to auto */
428 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
429 "1302 Invalid speed for this board: "
430 "Reset link speed to auto: x%x\n",
431 phba->cfg_link_speed);
432 phba->cfg_link_speed = LINK_SPEED_AUTO;
433 }
434
435 phba->link_state = LPFC_LINK_DOWN;
436
437 /* Only process IOCBs on ELS ring till hba_state is READY */
438 if (psli->ring[psli->extra_ring].cmdringaddr)
439 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
440 if (psli->ring[psli->fcp_ring].cmdringaddr)
441 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
442 if (psli->ring[psli->next_ring].cmdringaddr)
443 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
444
445 /* Post receive buffers for desired rings */
446 if (phba->sli_rev != 3)
447 lpfc_post_rcv_buf(phba);
448
449 /*
450 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
451 */
452 if (phba->intr_type == MSIX) {
453 rc = lpfc_config_msi(phba, pmb);
454 if (rc) {
455 mempool_free(pmb, phba->mbox_mem_pool);
456 return -EIO;
457 }
458 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
459 if (rc != MBX_SUCCESS) {
460 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
461 "0352 Config MSI mailbox command "
462 "failed, mbxCmd x%x, mbxStatus x%x\n",
463 pmb->mb.mbxCommand, pmb->mb.mbxStatus);
464 mempool_free(pmb, phba->mbox_mem_pool);
465 return -EIO;
466 }
467 }
468
469 /* Initialize ERATT handling flag */
470 phba->hba_flag &= ~HBA_ERATT_HANDLED;
471
472 /* Enable appropriate host interrupts */
473 spin_lock_irq(&phba->hbalock);
474 status = readl(phba->HCregaddr);
475 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
476 if (psli->num_rings > 0)
477 status |= HC_R0INT_ENA;
478 if (psli->num_rings > 1)
479 status |= HC_R1INT_ENA;
480 if (psli->num_rings > 2)
481 status |= HC_R2INT_ENA;
482 if (psli->num_rings > 3)
483 status |= HC_R3INT_ENA;
484
485 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
486 (phba->cfg_poll & DISABLE_FCP_RING_INT))
487 status &= ~(HC_R0INT_ENA);
488
489 writel(status, phba->HCregaddr);
490 readl(phba->HCregaddr); /* flush */
491 spin_unlock_irq(&phba->hbalock);
492
493 /* Set up ring-0 (ELS) timer */
494 timeout = phba->fc_ratov * 2;
495 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
496 /* Set up heart beat (HB) timer */
497 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
498 phba->hb_outstanding = 0;
499 phba->last_completion_time = jiffies;
500 /* Set up error attention (ERATT) polling timer */
501 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
502
503 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
504 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
505 lpfc_set_loopback_flag(phba);
506 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
507 if (rc != MBX_SUCCESS) {
508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
509 "0454 Adapter failed to init, mbxCmd x%x "
510 "INIT_LINK, mbxStatus x%x\n",
511 mb->mbxCommand, mb->mbxStatus);
512
513 /* Clear all interrupt enable conditions */
514 writel(0, phba->HCregaddr);
515 readl(phba->HCregaddr); /* flush */
516 /* Clear all pending interrupts */
517 writel(0xffffffff, phba->HAregaddr);
518 readl(phba->HAregaddr); /* flush */
519
520 phba->link_state = LPFC_HBA_ERROR;
521 if (rc != MBX_BUSY)
522 mempool_free(pmb, phba->mbox_mem_pool);
523 return -EIO;
524 }
525 /* MBOX buffer will be freed in mbox compl */
526 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
527 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
528 pmb->mbox_cmpl = lpfc_config_async_cmpl;
529 pmb->vport = phba->pport;
530 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
531
532 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
533 lpfc_printf_log(phba,
534 KERN_ERR,
535 LOG_INIT,
536 "0456 Adapter failed to issue "
537 "ASYNCEVT_ENABLE mbox status x%x \n.",
538 rc);
539 mempool_free(pmb, phba->mbox_mem_pool);
540 }
541
542 /* Get Option rom version */
543 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
544 lpfc_dump_wakeup_param(phba, pmb);
545 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
546 pmb->vport = phba->pport;
547 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
548
549 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
551 "to get Option ROM version status x%x\n.", rc);
552 mempool_free(pmb, phba->mbox_mem_pool);
553 }
554
555 return 0;
556 }
557
558 /**
559 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
560 * @phba: pointer to lpfc HBA data structure.
561 *
562 * This routine will do LPFC uninitialization before the HBA is reset when
563 * bringing down the SLI Layer.
564 *
565 * Return codes
566 * 0 - success.
567 * Any other value - error.
568 **/
569 int
570 lpfc_hba_down_prep(struct lpfc_hba *phba)
571 {
572 struct lpfc_vport **vports;
573 int i;
574 /* Disable interrupts */
575 writel(0, phba->HCregaddr);
576 readl(phba->HCregaddr); /* flush */
577
578 if (phba->pport->load_flag & FC_UNLOADING)
579 lpfc_cleanup_discovery_resources(phba->pport);
580 else {
581 vports = lpfc_create_vport_work_array(phba);
582 if (vports != NULL)
583 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
584 lpfc_cleanup_discovery_resources(vports[i]);
585 lpfc_destroy_vport_work_array(phba, vports);
586 }
587 return 0;
588 }
589
590 /**
591 * lpfc_hba_down_post - Perform lpfc uninitialization after HBA reset
592 * @phba: pointer to lpfc HBA data structure.
593 *
594 * This routine will do uninitialization after the HBA is reset when bring
595 * down the SLI Layer.
596 *
597 * Return codes
598 * 0 - sucess.
599 * Any other value - error.
600 **/
601 int
602 lpfc_hba_down_post(struct lpfc_hba *phba)
603 {
604 struct lpfc_sli *psli = &phba->sli;
605 struct lpfc_sli_ring *pring;
606 struct lpfc_dmabuf *mp, *next_mp;
607 LIST_HEAD(completions);
608 int i;
609
610 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
611 lpfc_sli_hbqbuf_free_all(phba);
612 else {
613 /* Cleanup preposted buffers on the ELS ring */
614 pring = &psli->ring[LPFC_ELS_RING];
615 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
616 list_del(&mp->list);
617 pring->postbufq_cnt--;
618 lpfc_mbuf_free(phba, mp->virt, mp->phys);
619 kfree(mp);
620 }
621 }
622
623 spin_lock_irq(&phba->hbalock);
624 for (i = 0; i < psli->num_rings; i++) {
625 pring = &psli->ring[i];
626
627 /* At this point in time the HBA is either reset or DOA. Either
628 * way, nothing should be on txcmplq as it will NEVER complete.
629 */
630 list_splice_init(&pring->txcmplq, &completions);
631 pring->txcmplq_cnt = 0;
632 spin_unlock_irq(&phba->hbalock);
633
634 /* Cancel all the IOCBs from the completions list */
635 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
636 IOERR_SLI_ABORTED);
637
638 lpfc_sli_abort_iocb_ring(phba, pring);
639 spin_lock_irq(&phba->hbalock);
640 }
641 spin_unlock_irq(&phba->hbalock);
642
643 return 0;
644 }
645
646 /**
647 * lpfc_hb_timeout - The HBA-timer timeout handler
648 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
649 *
650 * This is the HBA-timer timeout handler registered to the lpfc driver. When
651 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
652 * work-port-events bitmap and the worker thread is notified. This timeout
653 * event will be used by the worker thread to invoke the actual timeout
654 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
655 * be performed in the timeout handler and the HBA timeout event bit shall
656 * be cleared by the worker thread after it has taken the event bitmap out.
657 **/
658 static void
659 lpfc_hb_timeout(unsigned long ptr)
660 {
661 struct lpfc_hba *phba;
662 uint32_t tmo_posted;
663 unsigned long iflag;
664
665 phba = (struct lpfc_hba *)ptr;
666
667 /* Check for heart beat timeout conditions */
668 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
669 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
670 if (!tmo_posted)
671 phba->pport->work_port_events |= WORKER_HB_TMO;
672 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
673
674 /* Tell the worker thread there is work to do */
675 if (!tmo_posted)
676 lpfc_worker_wake_up(phba);
677 return;
678 }
679
680 /**
681 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
682 * @phba: pointer to lpfc hba data structure.
683 * @pmboxq: pointer to the driver internal queue element for mailbox command.
684 *
685 * This is the callback function to the lpfc heart-beat mailbox command.
686 * If configured, the lpfc driver issues the heart-beat mailbox command to
687 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
688 * heart-beat mailbox command is issued, the driver shall set up heart-beat
689 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
690 * heart-beat outstanding state. Once the mailbox command comes back and
691 * no error conditions detected, the heart-beat mailbox command timer is
692 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
693 * state is cleared for the next heart-beat. If the timer expired with the
694 * heart-beat outstanding state set, the driver will put the HBA offline.
695 **/
696 static void
697 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
698 {
699 unsigned long drvr_flag;
700
701 spin_lock_irqsave(&phba->hbalock, drvr_flag);
702 phba->hb_outstanding = 0;
703 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
704
705 /* Check and reset heart-beat timer is necessary */
706 mempool_free(pmboxq, phba->mbox_mem_pool);
707 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
708 !(phba->link_state == LPFC_HBA_ERROR) &&
709 !(phba->pport->load_flag & FC_UNLOADING))
710 mod_timer(&phba->hb_tmofunc,
711 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
712 return;
713 }
714
715 /**
716 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
717 * @phba: pointer to lpfc hba data structure.
718 *
719 * This is the actual HBA-timer timeout handler to be invoked by the worker
720 * thread whenever the HBA timer fired and HBA-timeout event posted. This
721 * handler performs any periodic operations needed for the device. If such
722 * periodic event has already been attended to either in the interrupt handler
723 * or by processing slow-ring or fast-ring events within the HBA-timer
724 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
725 * the timer for the next timeout period. If lpfc heart-beat mailbox command
726 * is configured and there is no heart-beat mailbox command outstanding, a
727 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
728 * has been a heart-beat mailbox command outstanding, the HBA shall be put
729 * to offline.
730 **/
731 void
732 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
733 {
734 LPFC_MBOXQ_t *pmboxq;
735 struct lpfc_dmabuf *buf_ptr;
736 int retval;
737 struct lpfc_sli *psli = &phba->sli;
738 LIST_HEAD(completions);
739
740 if ((phba->link_state == LPFC_HBA_ERROR) ||
741 (phba->pport->load_flag & FC_UNLOADING) ||
742 (phba->pport->fc_flag & FC_OFFLINE_MODE))
743 return;
744
745 spin_lock_irq(&phba->pport->work_port_lock);
746
747 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
748 jiffies)) {
749 spin_unlock_irq(&phba->pport->work_port_lock);
750 if (!phba->hb_outstanding)
751 mod_timer(&phba->hb_tmofunc,
752 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
753 else
754 mod_timer(&phba->hb_tmofunc,
755 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
756 return;
757 }
758 spin_unlock_irq(&phba->pport->work_port_lock);
759
760 if (phba->elsbuf_cnt &&
761 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
762 spin_lock_irq(&phba->hbalock);
763 list_splice_init(&phba->elsbuf, &completions);
764 phba->elsbuf_cnt = 0;
765 phba->elsbuf_prev_cnt = 0;
766 spin_unlock_irq(&phba->hbalock);
767
768 while (!list_empty(&completions)) {
769 list_remove_head(&completions, buf_ptr,
770 struct lpfc_dmabuf, list);
771 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
772 kfree(buf_ptr);
773 }
774 }
775 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
776
777 /* If there is no heart beat outstanding, issue a heartbeat command */
778 if (phba->cfg_enable_hba_heartbeat) {
779 if (!phba->hb_outstanding) {
780 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
781 if (!pmboxq) {
782 mod_timer(&phba->hb_tmofunc,
783 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
784 return;
785 }
786
787 lpfc_heart_beat(phba, pmboxq);
788 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
789 pmboxq->vport = phba->pport;
790 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
791
792 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
793 mempool_free(pmboxq, phba->mbox_mem_pool);
794 mod_timer(&phba->hb_tmofunc,
795 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
796 return;
797 }
798 mod_timer(&phba->hb_tmofunc,
799 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
800 phba->hb_outstanding = 1;
801 return;
802 } else {
803 /*
804 * If heart beat timeout called with hb_outstanding set
805 * we need to take the HBA offline.
806 */
807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
808 "0459 Adapter heartbeat failure, "
809 "taking this port offline.\n");
810
811 spin_lock_irq(&phba->hbalock);
812 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
813 spin_unlock_irq(&phba->hbalock);
814
815 lpfc_offline_prep(phba);
816 lpfc_offline(phba);
817 lpfc_unblock_mgmt_io(phba);
818 phba->link_state = LPFC_HBA_ERROR;
819 lpfc_hba_down_post(phba);
820 }
821 }
822 }
823
824 /**
825 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
826 * @phba: pointer to lpfc hba data structure.
827 *
828 * This routine is called to bring the HBA offline when HBA hardware error
829 * other than Port Error 6 has been detected.
830 **/
831 static void
832 lpfc_offline_eratt(struct lpfc_hba *phba)
833 {
834 struct lpfc_sli *psli = &phba->sli;
835
836 spin_lock_irq(&phba->hbalock);
837 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
838 spin_unlock_irq(&phba->hbalock);
839 lpfc_offline_prep(phba);
840
841 lpfc_offline(phba);
842 lpfc_reset_barrier(phba);
843 lpfc_sli_brdreset(phba);
844 lpfc_hba_down_post(phba);
845 lpfc_sli_brdready(phba, HS_MBRDY);
846 lpfc_unblock_mgmt_io(phba);
847 phba->link_state = LPFC_HBA_ERROR;
848 return;
849 }
850
851 /**
852 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
853 * @phba: pointer to lpfc hba data structure.
854 *
855 * This routine is invoked to handle the deferred HBA hardware error
856 * conditions. This type of error is indicated by HBA by setting ER1
857 * and another ER bit in the host status register. The driver will
858 * wait until the ER1 bit clears before handling the error condition.
859 **/
860 static void
861 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
862 {
863 uint32_t old_host_status = phba->work_hs;
864 struct lpfc_sli_ring *pring;
865 struct lpfc_sli *psli = &phba->sli;
866
867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
868 "0479 Deferred Adapter Hardware Error "
869 "Data: x%x x%x x%x\n",
870 phba->work_hs,
871 phba->work_status[0], phba->work_status[1]);
872
873 spin_lock_irq(&phba->hbalock);
874 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
875 spin_unlock_irq(&phba->hbalock);
876
877
878 /*
879 * Firmware stops when it triggred erratt. That could cause the I/Os
880 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
881 * SCSI layer retry it after re-establishing link.
882 */
883 pring = &psli->ring[psli->fcp_ring];
884 lpfc_sli_abort_iocb_ring(phba, pring);
885
886 /*
887 * There was a firmware error. Take the hba offline and then
888 * attempt to restart it.
889 */
890 lpfc_offline_prep(phba);
891 lpfc_offline(phba);
892
893 /* Wait for the ER1 bit to clear.*/
894 while (phba->work_hs & HS_FFER1) {
895 msleep(100);
896 phba->work_hs = readl(phba->HSregaddr);
897 /* If driver is unloading let the worker thread continue */
898 if (phba->pport->load_flag & FC_UNLOADING) {
899 phba->work_hs = 0;
900 break;
901 }
902 }
903
904 /*
905 * This is to ptrotect against a race condition in which
906 * first write to the host attention register clear the
907 * host status register.
908 */
909 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
910 phba->work_hs = old_host_status & ~HS_FFER1;
911
912 phba->hba_flag &= ~DEFER_ERATT;
913 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
914 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
915 }
916
917 /**
918 * lpfc_handle_eratt - The HBA hardware error handler
919 * @phba: pointer to lpfc hba data structure.
920 *
921 * This routine is invoked to handle the following HBA hardware error
922 * conditions:
923 * 1 - HBA error attention interrupt
924 * 2 - DMA ring index out of range
925 * 3 - Mailbox command came back as unknown
926 **/
927 void
928 lpfc_handle_eratt(struct lpfc_hba *phba)
929 {
930 struct lpfc_vport *vport = phba->pport;
931 struct lpfc_sli *psli = &phba->sli;
932 struct lpfc_sli_ring *pring;
933 uint32_t event_data;
934 unsigned long temperature;
935 struct temp_event temp_event_data;
936 struct Scsi_Host *shost;
937 struct lpfc_board_event_header board_event;
938
939 /* If the pci channel is offline, ignore possible errors,
940 * since we cannot communicate with the pci card anyway. */
941 if (pci_channel_offline(phba->pcidev))
942 return;
943 /* If resets are disabled then leave the HBA alone and return */
944 if (!phba->cfg_enable_hba_reset)
945 return;
946
947 /* Send an internal error event to mgmt application */
948 board_event.event_type = FC_REG_BOARD_EVENT;
949 board_event.subcategory = LPFC_EVENT_PORTINTERR;
950 shost = lpfc_shost_from_vport(phba->pport);
951 fc_host_post_vendor_event(shost, fc_get_event_number(),
952 sizeof(board_event),
953 (char *) &board_event,
954 LPFC_NL_VENDOR_ID);
955
956 if (phba->hba_flag & DEFER_ERATT)
957 lpfc_handle_deferred_eratt(phba);
958
959 if (phba->work_hs & HS_FFER6) {
960 /* Re-establishing Link */
961 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
962 "1301 Re-establishing Link "
963 "Data: x%x x%x x%x\n",
964 phba->work_hs,
965 phba->work_status[0], phba->work_status[1]);
966
967 spin_lock_irq(&phba->hbalock);
968 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
969 spin_unlock_irq(&phba->hbalock);
970
971 /*
972 * Firmware stops when it triggled erratt with HS_FFER6.
973 * That could cause the I/Os dropped by the firmware.
974 * Error iocb (I/O) on txcmplq and let the SCSI layer
975 * retry it after re-establishing link.
976 */
977 pring = &psli->ring[psli->fcp_ring];
978 lpfc_sli_abort_iocb_ring(phba, pring);
979
980 /*
981 * There was a firmware error. Take the hba offline and then
982 * attempt to restart it.
983 */
984 lpfc_offline_prep(phba);
985 lpfc_offline(phba);
986 lpfc_sli_brdrestart(phba);
987 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
988 lpfc_unblock_mgmt_io(phba);
989 return;
990 }
991 lpfc_unblock_mgmt_io(phba);
992 } else if (phba->work_hs & HS_CRIT_TEMP) {
993 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
994 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
995 temp_event_data.event_code = LPFC_CRIT_TEMP;
996 temp_event_data.data = (uint32_t)temperature;
997
998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
999 "0406 Adapter maximum temperature exceeded "
1000 "(%ld), taking this port offline "
1001 "Data: x%x x%x x%x\n",
1002 temperature, phba->work_hs,
1003 phba->work_status[0], phba->work_status[1]);
1004
1005 shost = lpfc_shost_from_vport(phba->pport);
1006 fc_host_post_vendor_event(shost, fc_get_event_number(),
1007 sizeof(temp_event_data),
1008 (char *) &temp_event_data,
1009 SCSI_NL_VID_TYPE_PCI
1010 | PCI_VENDOR_ID_EMULEX);
1011
1012 spin_lock_irq(&phba->hbalock);
1013 phba->over_temp_state = HBA_OVER_TEMP;
1014 spin_unlock_irq(&phba->hbalock);
1015 lpfc_offline_eratt(phba);
1016
1017 } else {
1018 /* The if clause above forces this code path when the status
1019 * failure is a value other than FFER6. Do not call the offline
1020 * twice. This is the adapter hardware error path.
1021 */
1022 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1023 "0457 Adapter Hardware Error "
1024 "Data: x%x x%x x%x\n",
1025 phba->work_hs,
1026 phba->work_status[0], phba->work_status[1]);
1027
1028 event_data = FC_REG_DUMP_EVENT;
1029 shost = lpfc_shost_from_vport(vport);
1030 fc_host_post_vendor_event(shost, fc_get_event_number(),
1031 sizeof(event_data), (char *) &event_data,
1032 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1033
1034 lpfc_offline_eratt(phba);
1035 }
1036 return;
1037 }
1038
1039 /**
1040 * lpfc_handle_latt - The HBA link event handler
1041 * @phba: pointer to lpfc hba data structure.
1042 *
1043 * This routine is invoked from the worker thread to handle a HBA host
1044 * attention link event.
1045 **/
1046 void
1047 lpfc_handle_latt(struct lpfc_hba *phba)
1048 {
1049 struct lpfc_vport *vport = phba->pport;
1050 struct lpfc_sli *psli = &phba->sli;
1051 LPFC_MBOXQ_t *pmb;
1052 volatile uint32_t control;
1053 struct lpfc_dmabuf *mp;
1054 int rc = 0;
1055
1056 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1057 if (!pmb) {
1058 rc = 1;
1059 goto lpfc_handle_latt_err_exit;
1060 }
1061
1062 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1063 if (!mp) {
1064 rc = 2;
1065 goto lpfc_handle_latt_free_pmb;
1066 }
1067
1068 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1069 if (!mp->virt) {
1070 rc = 3;
1071 goto lpfc_handle_latt_free_mp;
1072 }
1073
1074 /* Cleanup any outstanding ELS commands */
1075 lpfc_els_flush_all_cmd(phba);
1076
1077 psli->slistat.link_event++;
1078 lpfc_read_la(phba, pmb, mp);
1079 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1080 pmb->vport = vport;
1081 /* Block ELS IOCBs until we have processed this mbox command */
1082 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1083 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1084 if (rc == MBX_NOT_FINISHED) {
1085 rc = 4;
1086 goto lpfc_handle_latt_free_mbuf;
1087 }
1088
1089 /* Clear Link Attention in HA REG */
1090 spin_lock_irq(&phba->hbalock);
1091 writel(HA_LATT, phba->HAregaddr);
1092 readl(phba->HAregaddr); /* flush */
1093 spin_unlock_irq(&phba->hbalock);
1094
1095 return;
1096
1097 lpfc_handle_latt_free_mbuf:
1098 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1099 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1100 lpfc_handle_latt_free_mp:
1101 kfree(mp);
1102 lpfc_handle_latt_free_pmb:
1103 mempool_free(pmb, phba->mbox_mem_pool);
1104 lpfc_handle_latt_err_exit:
1105 /* Enable Link attention interrupts */
1106 spin_lock_irq(&phba->hbalock);
1107 psli->sli_flag |= LPFC_PROCESS_LA;
1108 control = readl(phba->HCregaddr);
1109 control |= HC_LAINT_ENA;
1110 writel(control, phba->HCregaddr);
1111 readl(phba->HCregaddr); /* flush */
1112
1113 /* Clear Link Attention in HA REG */
1114 writel(HA_LATT, phba->HAregaddr);
1115 readl(phba->HAregaddr); /* flush */
1116 spin_unlock_irq(&phba->hbalock);
1117 lpfc_linkdown(phba);
1118 phba->link_state = LPFC_HBA_ERROR;
1119
1120 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1121 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1122
1123 return;
1124 }
1125
1126 /**
1127 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1128 * @phba: pointer to lpfc hba data structure.
1129 * @vpd: pointer to the vital product data.
1130 * @len: length of the vital product data in bytes.
1131 *
1132 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1133 * an array of characters. In this routine, the ModelName, ProgramType, and
1134 * ModelDesc, etc. fields of the phba data structure will be populated.
1135 *
1136 * Return codes
1137 * 0 - pointer to the VPD passed in is NULL
1138 * 1 - success
1139 **/
1140 static int
1141 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1142 {
1143 uint8_t lenlo, lenhi;
1144 int Length;
1145 int i, j;
1146 int finished = 0;
1147 int index = 0;
1148
1149 if (!vpd)
1150 return 0;
1151
1152 /* Vital Product */
1153 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1154 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1155 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1156 (uint32_t) vpd[3]);
1157 while (!finished && (index < (len - 4))) {
1158 switch (vpd[index]) {
1159 case 0x82:
1160 case 0x91:
1161 index += 1;
1162 lenlo = vpd[index];
1163 index += 1;
1164 lenhi = vpd[index];
1165 index += 1;
1166 i = ((((unsigned short)lenhi) << 8) + lenlo);
1167 index += i;
1168 break;
1169 case 0x90:
1170 index += 1;
1171 lenlo = vpd[index];
1172 index += 1;
1173 lenhi = vpd[index];
1174 index += 1;
1175 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1176 if (Length > len - index)
1177 Length = len - index;
1178 while (Length > 0) {
1179 /* Look for Serial Number */
1180 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1181 index += 2;
1182 i = vpd[index];
1183 index += 1;
1184 j = 0;
1185 Length -= (3+i);
1186 while(i--) {
1187 phba->SerialNumber[j++] = vpd[index++];
1188 if (j == 31)
1189 break;
1190 }
1191 phba->SerialNumber[j] = 0;
1192 continue;
1193 }
1194 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1195 phba->vpd_flag |= VPD_MODEL_DESC;
1196 index += 2;
1197 i = vpd[index];
1198 index += 1;
1199 j = 0;
1200 Length -= (3+i);
1201 while(i--) {
1202 phba->ModelDesc[j++] = vpd[index++];
1203 if (j == 255)
1204 break;
1205 }
1206 phba->ModelDesc[j] = 0;
1207 continue;
1208 }
1209 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1210 phba->vpd_flag |= VPD_MODEL_NAME;
1211 index += 2;
1212 i = vpd[index];
1213 index += 1;
1214 j = 0;
1215 Length -= (3+i);
1216 while(i--) {
1217 phba->ModelName[j++] = vpd[index++];
1218 if (j == 79)
1219 break;
1220 }
1221 phba->ModelName[j] = 0;
1222 continue;
1223 }
1224 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1225 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1226 index += 2;
1227 i = vpd[index];
1228 index += 1;
1229 j = 0;
1230 Length -= (3+i);
1231 while(i--) {
1232 phba->ProgramType[j++] = vpd[index++];
1233 if (j == 255)
1234 break;
1235 }
1236 phba->ProgramType[j] = 0;
1237 continue;
1238 }
1239 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1240 phba->vpd_flag |= VPD_PORT;
1241 index += 2;
1242 i = vpd[index];
1243 index += 1;
1244 j = 0;
1245 Length -= (3+i);
1246 while(i--) {
1247 phba->Port[j++] = vpd[index++];
1248 if (j == 19)
1249 break;
1250 }
1251 phba->Port[j] = 0;
1252 continue;
1253 }
1254 else {
1255 index += 2;
1256 i = vpd[index];
1257 index += 1;
1258 index += i;
1259 Length -= (3 + i);
1260 }
1261 }
1262 finished = 0;
1263 break;
1264 case 0x78:
1265 finished = 1;
1266 break;
1267 default:
1268 index ++;
1269 break;
1270 }
1271 }
1272
1273 return(1);
1274 }
1275
1276 /**
1277 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1278 * @phba: pointer to lpfc hba data structure.
1279 * @mdp: pointer to the data structure to hold the derived model name.
1280 * @descp: pointer to the data structure to hold the derived description.
1281 *
1282 * This routine retrieves HBA's description based on its registered PCI device
1283 * ID. The @descp passed into this function points to an array of 256 chars. It
1284 * shall be returned with the model name, maximum speed, and the host bus type.
1285 * The @mdp passed into this function points to an array of 80 chars. When the
1286 * function returns, the @mdp will be filled with the model name.
1287 **/
1288 static void
1289 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1290 {
1291 lpfc_vpd_t *vp;
1292 uint16_t dev_id = phba->pcidev->device;
1293 int max_speed;
1294 int GE = 0;
1295 struct {
1296 char * name;
1297 int max_speed;
1298 char * bus;
1299 } m = {"<Unknown>", 0, ""};
1300
1301 if (mdp && mdp[0] != '\0'
1302 && descp && descp[0] != '\0')
1303 return;
1304
1305 if (phba->lmt & LMT_10Gb)
1306 max_speed = 10;
1307 else if (phba->lmt & LMT_8Gb)
1308 max_speed = 8;
1309 else if (phba->lmt & LMT_4Gb)
1310 max_speed = 4;
1311 else if (phba->lmt & LMT_2Gb)
1312 max_speed = 2;
1313 else
1314 max_speed = 1;
1315
1316 vp = &phba->vpd;
1317
1318 switch (dev_id) {
1319 case PCI_DEVICE_ID_FIREFLY:
1320 m = (typeof(m)){"LP6000", max_speed, "PCI"};
1321 break;
1322 case PCI_DEVICE_ID_SUPERFLY:
1323 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1324 m = (typeof(m)){"LP7000", max_speed, "PCI"};
1325 else
1326 m = (typeof(m)){"LP7000E", max_speed, "PCI"};
1327 break;
1328 case PCI_DEVICE_ID_DRAGONFLY:
1329 m = (typeof(m)){"LP8000", max_speed, "PCI"};
1330 break;
1331 case PCI_DEVICE_ID_CENTAUR:
1332 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1333 m = (typeof(m)){"LP9002", max_speed, "PCI"};
1334 else
1335 m = (typeof(m)){"LP9000", max_speed, "PCI"};
1336 break;
1337 case PCI_DEVICE_ID_RFLY:
1338 m = (typeof(m)){"LP952", max_speed, "PCI"};
1339 break;
1340 case PCI_DEVICE_ID_PEGASUS:
1341 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
1342 break;
1343 case PCI_DEVICE_ID_THOR:
1344 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
1345 break;
1346 case PCI_DEVICE_ID_VIPER:
1347 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
1348 break;
1349 case PCI_DEVICE_ID_PFLY:
1350 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
1351 break;
1352 case PCI_DEVICE_ID_TFLY:
1353 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
1354 break;
1355 case PCI_DEVICE_ID_HELIOS:
1356 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
1357 break;
1358 case PCI_DEVICE_ID_HELIOS_SCSP:
1359 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1360 break;
1361 case PCI_DEVICE_ID_HELIOS_DCSP:
1362 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1363 break;
1364 case PCI_DEVICE_ID_NEPTUNE:
1365 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1366 break;
1367 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1368 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1369 break;
1370 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1371 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1372 break;
1373 case PCI_DEVICE_ID_BMID:
1374 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
1375 break;
1376 case PCI_DEVICE_ID_BSMB:
1377 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
1378 break;
1379 case PCI_DEVICE_ID_ZEPHYR:
1380 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1381 break;
1382 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1383 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1384 break;
1385 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1386 m = (typeof(m)){"LP2105", max_speed, "PCIe"};
1387 GE = 1;
1388 break;
1389 case PCI_DEVICE_ID_ZMID:
1390 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
1391 break;
1392 case PCI_DEVICE_ID_ZSMB:
1393 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
1394 break;
1395 case PCI_DEVICE_ID_LP101:
1396 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
1397 break;
1398 case PCI_DEVICE_ID_LP10000S:
1399 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1400 break;
1401 case PCI_DEVICE_ID_LP11000S:
1402 m = (typeof(m)){"LP11000-S", max_speed,
1403 "PCI-X2"};
1404 break;
1405 case PCI_DEVICE_ID_LPE11000S:
1406 m = (typeof(m)){"LPe11000-S", max_speed,
1407 "PCIe"};
1408 break;
1409 case PCI_DEVICE_ID_SAT:
1410 m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
1411 break;
1412 case PCI_DEVICE_ID_SAT_MID:
1413 m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
1414 break;
1415 case PCI_DEVICE_ID_SAT_SMB:
1416 m = (typeof(m)){"LPe121", max_speed, "PCIe"};
1417 break;
1418 case PCI_DEVICE_ID_SAT_DCSP:
1419 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
1420 break;
1421 case PCI_DEVICE_ID_SAT_SCSP:
1422 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
1423 break;
1424 case PCI_DEVICE_ID_SAT_S:
1425 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
1426 break;
1427 case PCI_DEVICE_ID_HORNET:
1428 m = (typeof(m)){"LP21000", max_speed, "PCIe"};
1429 GE = 1;
1430 break;
1431 case PCI_DEVICE_ID_PROTEUS_VF:
1432 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1433 break;
1434 case PCI_DEVICE_ID_PROTEUS_PF:
1435 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1436 break;
1437 case PCI_DEVICE_ID_PROTEUS_S:
1438 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1439 break;
1440 default:
1441 m = (typeof(m)){ NULL };
1442 break;
1443 }
1444
1445 if (mdp && mdp[0] == '\0')
1446 snprintf(mdp, 79,"%s", m.name);
1447 if (descp && descp[0] == '\0')
1448 snprintf(descp, 255,
1449 "Emulex %s %d%s %s %s",
1450 m.name, m.max_speed,
1451 (GE) ? "GE" : "Gb",
1452 m.bus,
1453 (GE) ? "FCoE Adapter" : "Fibre Channel Adapter");
1454 }
1455
1456 /**
1457 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1458 * @phba: pointer to lpfc hba data structure.
1459 * @pring: pointer to a IOCB ring.
1460 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1461 *
1462 * This routine posts a given number of IOCBs with the associated DMA buffer
1463 * descriptors specified by the cnt argument to the given IOCB ring.
1464 *
1465 * Return codes
1466 * The number of IOCBs NOT able to be posted to the IOCB ring.
1467 **/
1468 int
1469 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1470 {
1471 IOCB_t *icmd;
1472 struct lpfc_iocbq *iocb;
1473 struct lpfc_dmabuf *mp1, *mp2;
1474
1475 cnt += pring->missbufcnt;
1476
1477 /* While there are buffers to post */
1478 while (cnt > 0) {
1479 /* Allocate buffer for command iocb */
1480 iocb = lpfc_sli_get_iocbq(phba);
1481 if (iocb == NULL) {
1482 pring->missbufcnt = cnt;
1483 return cnt;
1484 }
1485 icmd = &iocb->iocb;
1486
1487 /* 2 buffers can be posted per command */
1488 /* Allocate buffer to post */
1489 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1490 if (mp1)
1491 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1492 if (!mp1 || !mp1->virt) {
1493 kfree(mp1);
1494 lpfc_sli_release_iocbq(phba, iocb);
1495 pring->missbufcnt = cnt;
1496 return cnt;
1497 }
1498
1499 INIT_LIST_HEAD(&mp1->list);
1500 /* Allocate buffer to post */
1501 if (cnt > 1) {
1502 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1503 if (mp2)
1504 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1505 &mp2->phys);
1506 if (!mp2 || !mp2->virt) {
1507 kfree(mp2);
1508 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1509 kfree(mp1);
1510 lpfc_sli_release_iocbq(phba, iocb);
1511 pring->missbufcnt = cnt;
1512 return cnt;
1513 }
1514
1515 INIT_LIST_HEAD(&mp2->list);
1516 } else {
1517 mp2 = NULL;
1518 }
1519
1520 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1521 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1522 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1523 icmd->ulpBdeCount = 1;
1524 cnt--;
1525 if (mp2) {
1526 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1527 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1528 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1529 cnt--;
1530 icmd->ulpBdeCount = 2;
1531 }
1532
1533 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1534 icmd->ulpLe = 1;
1535
1536 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
1537 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1538 kfree(mp1);
1539 cnt++;
1540 if (mp2) {
1541 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1542 kfree(mp2);
1543 cnt++;
1544 }
1545 lpfc_sli_release_iocbq(phba, iocb);
1546 pring->missbufcnt = cnt;
1547 return cnt;
1548 }
1549 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1550 if (mp2)
1551 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1552 }
1553 pring->missbufcnt = 0;
1554 return 0;
1555 }
1556
1557 /**
1558 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1559 * @phba: pointer to lpfc hba data structure.
1560 *
1561 * This routine posts initial receive IOCB buffers to the ELS ring. The
1562 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1563 * set to 64 IOCBs.
1564 *
1565 * Return codes
1566 * 0 - success (currently always success)
1567 **/
1568 static int
1569 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1570 {
1571 struct lpfc_sli *psli = &phba->sli;
1572
1573 /* Ring 0, ELS / CT buffers */
1574 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1575 /* Ring 2 - FCP no buffers needed */
1576
1577 return 0;
1578 }
1579
1580 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1581
1582 /**
1583 * lpfc_sha_init - Set up initial array of hash table entries
1584 * @HashResultPointer: pointer to an array as hash table.
1585 *
1586 * This routine sets up the initial values to the array of hash table entries
1587 * for the LC HBAs.
1588 **/
1589 static void
1590 lpfc_sha_init(uint32_t * HashResultPointer)
1591 {
1592 HashResultPointer[0] = 0x67452301;
1593 HashResultPointer[1] = 0xEFCDAB89;
1594 HashResultPointer[2] = 0x98BADCFE;
1595 HashResultPointer[3] = 0x10325476;
1596 HashResultPointer[4] = 0xC3D2E1F0;
1597 }
1598
1599 /**
1600 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1601 * @HashResultPointer: pointer to an initial/result hash table.
1602 * @HashWorkingPointer: pointer to an working hash table.
1603 *
1604 * This routine iterates an initial hash table pointed by @HashResultPointer
1605 * with the values from the working hash table pointeed by @HashWorkingPointer.
1606 * The results are putting back to the initial hash table, returned through
1607 * the @HashResultPointer as the result hash table.
1608 **/
1609 static void
1610 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1611 {
1612 int t;
1613 uint32_t TEMP;
1614 uint32_t A, B, C, D, E;
1615 t = 16;
1616 do {
1617 HashWorkingPointer[t] =
1618 S(1,
1619 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1620 8] ^
1621 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1622 } while (++t <= 79);
1623 t = 0;
1624 A = HashResultPointer[0];
1625 B = HashResultPointer[1];
1626 C = HashResultPointer[2];
1627 D = HashResultPointer[3];
1628 E = HashResultPointer[4];
1629
1630 do {
1631 if (t < 20) {
1632 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1633 } else if (t < 40) {
1634 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1635 } else if (t < 60) {
1636 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1637 } else {
1638 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1639 }
1640 TEMP += S(5, A) + E + HashWorkingPointer[t];
1641 E = D;
1642 D = C;
1643 C = S(30, B);
1644 B = A;
1645 A = TEMP;
1646 } while (++t <= 79);
1647
1648 HashResultPointer[0] += A;
1649 HashResultPointer[1] += B;
1650 HashResultPointer[2] += C;
1651 HashResultPointer[3] += D;
1652 HashResultPointer[4] += E;
1653
1654 }
1655
1656 /**
1657 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
1658 * @RandomChallenge: pointer to the entry of host challenge random number array.
1659 * @HashWorking: pointer to the entry of the working hash array.
1660 *
1661 * This routine calculates the working hash array referred by @HashWorking
1662 * from the challenge random numbers associated with the host, referred by
1663 * @RandomChallenge. The result is put into the entry of the working hash
1664 * array and returned by reference through @HashWorking.
1665 **/
1666 static void
1667 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1668 {
1669 *HashWorking = (*RandomChallenge ^ *HashWorking);
1670 }
1671
1672 /**
1673 * lpfc_hba_init - Perform special handling for LC HBA initialization
1674 * @phba: pointer to lpfc hba data structure.
1675 * @hbainit: pointer to an array of unsigned 32-bit integers.
1676 *
1677 * This routine performs the special handling for LC HBA initialization.
1678 **/
1679 void
1680 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1681 {
1682 int t;
1683 uint32_t *HashWorking;
1684 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
1685
1686 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
1687 if (!HashWorking)
1688 return;
1689
1690 HashWorking[0] = HashWorking[78] = *pwwnn++;
1691 HashWorking[1] = HashWorking[79] = *pwwnn;
1692
1693 for (t = 0; t < 7; t++)
1694 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1695
1696 lpfc_sha_init(hbainit);
1697 lpfc_sha_iterate(hbainit, HashWorking);
1698 kfree(HashWorking);
1699 }
1700
1701 /**
1702 * lpfc_cleanup - Performs vport cleanups before deleting a vport
1703 * @vport: pointer to a virtual N_Port data structure.
1704 *
1705 * This routine performs the necessary cleanups before deleting the @vport.
1706 * It invokes the discovery state machine to perform necessary state
1707 * transitions and to release the ndlps associated with the @vport. Note,
1708 * the physical port is treated as @vport 0.
1709 **/
1710 void
1711 lpfc_cleanup(struct lpfc_vport *vport)
1712 {
1713 struct lpfc_hba *phba = vport->phba;
1714 struct lpfc_nodelist *ndlp, *next_ndlp;
1715 int i = 0;
1716
1717 if (phba->link_state > LPFC_LINK_DOWN)
1718 lpfc_port_link_failure(vport);
1719
1720 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
1721 if (!NLP_CHK_NODE_ACT(ndlp)) {
1722 ndlp = lpfc_enable_node(vport, ndlp,
1723 NLP_STE_UNUSED_NODE);
1724 if (!ndlp)
1725 continue;
1726 spin_lock_irq(&phba->ndlp_lock);
1727 NLP_SET_FREE_REQ(ndlp);
1728 spin_unlock_irq(&phba->ndlp_lock);
1729 /* Trigger the release of the ndlp memory */
1730 lpfc_nlp_put(ndlp);
1731 continue;
1732 }
1733 spin_lock_irq(&phba->ndlp_lock);
1734 if (NLP_CHK_FREE_REQ(ndlp)) {
1735 /* The ndlp should not be in memory free mode already */
1736 spin_unlock_irq(&phba->ndlp_lock);
1737 continue;
1738 } else
1739 /* Indicate request for freeing ndlp memory */
1740 NLP_SET_FREE_REQ(ndlp);
1741 spin_unlock_irq(&phba->ndlp_lock);
1742
1743 if (vport->port_type != LPFC_PHYSICAL_PORT &&
1744 ndlp->nlp_DID == Fabric_DID) {
1745 /* Just free up ndlp with Fabric_DID for vports */
1746 lpfc_nlp_put(ndlp);
1747 continue;
1748 }
1749
1750 if (ndlp->nlp_type & NLP_FABRIC)
1751 lpfc_disc_state_machine(vport, ndlp, NULL,
1752 NLP_EVT_DEVICE_RECOVERY);
1753
1754 lpfc_disc_state_machine(vport, ndlp, NULL,
1755 NLP_EVT_DEVICE_RM);
1756
1757 }
1758
1759 /* At this point, ALL ndlp's should be gone
1760 * because of the previous NLP_EVT_DEVICE_RM.
1761 * Lets wait for this to happen, if needed.
1762 */
1763 while (!list_empty(&vport->fc_nodes)) {
1764
1765 if (i++ > 3000) {
1766 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1767 "0233 Nodelist not empty\n");
1768 list_for_each_entry_safe(ndlp, next_ndlp,
1769 &vport->fc_nodes, nlp_listp) {
1770 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
1771 LOG_NODE,
1772 "0282 did:x%x ndlp:x%p "
1773 "usgmap:x%x refcnt:%d\n",
1774 ndlp->nlp_DID, (void *)ndlp,
1775 ndlp->nlp_usg_map,
1776 atomic_read(
1777 &ndlp->kref.refcount));
1778 }
1779 break;
1780 }
1781
1782 /* Wait for any activity on ndlps to settle */
1783 msleep(10);
1784 }
1785 return;
1786 }
1787
1788 /**
1789 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
1790 * @vport: pointer to a virtual N_Port data structure.
1791 *
1792 * This routine stops all the timers associated with a @vport. This function
1793 * is invoked before disabling or deleting a @vport. Note that the physical
1794 * port is treated as @vport 0.
1795 **/
1796 void
1797 lpfc_stop_vport_timers(struct lpfc_vport *vport)
1798 {
1799 del_timer_sync(&vport->els_tmofunc);
1800 del_timer_sync(&vport->fc_fdmitmo);
1801 lpfc_can_disctmo(vport);
1802 return;
1803 }
1804
1805 /**
1806 * lpfc_stop_phba_timers - Stop all the timers associated with an HBA
1807 * @phba: pointer to lpfc hba data structure.
1808 *
1809 * This routine stops all the timers associated with a HBA. This function is
1810 * invoked before either putting a HBA offline or unloading the driver.
1811 **/
1812 static void
1813 lpfc_stop_phba_timers(struct lpfc_hba *phba)
1814 {
1815 del_timer_sync(&phba->fcp_poll_timer);
1816 lpfc_stop_vport_timers(phba->pport);
1817 del_timer_sync(&phba->sli.mbox_tmo);
1818 del_timer_sync(&phba->fabric_block_timer);
1819 phba->hb_outstanding = 0;
1820 del_timer_sync(&phba->hb_tmofunc);
1821 del_timer_sync(&phba->eratt_poll);
1822 return;
1823 }
1824
1825 /**
1826 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
1827 * @phba: pointer to lpfc hba data structure.
1828 *
1829 * This routine marks a HBA's management interface as blocked. Once the HBA's
1830 * management interface is marked as blocked, all the user space access to
1831 * the HBA, whether they are from sysfs interface or libdfc interface will
1832 * all be blocked. The HBA is set to block the management interface when the
1833 * driver prepares the HBA interface for online or offline.
1834 **/
1835 static void
1836 lpfc_block_mgmt_io(struct lpfc_hba * phba)
1837 {
1838 unsigned long iflag;
1839
1840 spin_lock_irqsave(&phba->hbalock, iflag);
1841 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
1842 spin_unlock_irqrestore(&phba->hbalock, iflag);
1843 }
1844
1845 /**
1846 * lpfc_online - Initialize and bring a HBA online
1847 * @phba: pointer to lpfc hba data structure.
1848 *
1849 * This routine initializes the HBA and brings a HBA online. During this
1850 * process, the management interface is blocked to prevent user space access
1851 * to the HBA interfering with the driver initialization.
1852 *
1853 * Return codes
1854 * 0 - successful
1855 * 1 - failed
1856 **/
1857 int
1858 lpfc_online(struct lpfc_hba *phba)
1859 {
1860 struct lpfc_vport *vport;
1861 struct lpfc_vport **vports;
1862 int i;
1863
1864 if (!phba)
1865 return 0;
1866 vport = phba->pport;
1867
1868 if (!(vport->fc_flag & FC_OFFLINE_MODE))
1869 return 0;
1870
1871 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1872 "0458 Bring Adapter online\n");
1873
1874 lpfc_block_mgmt_io(phba);
1875
1876 if (!lpfc_sli_queue_setup(phba)) {
1877 lpfc_unblock_mgmt_io(phba);
1878 return 1;
1879 }
1880
1881 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */
1882 lpfc_unblock_mgmt_io(phba);
1883 return 1;
1884 }
1885
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 shost = lpfc_shost_from_vport(vports[i]);
1891 spin_lock_irq(shost->host_lock);
1892 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
1893 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
1894 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1895 spin_unlock_irq(shost->host_lock);
1896 }
1897 lpfc_destroy_vport_work_array(phba, vports);
1898
1899 lpfc_unblock_mgmt_io(phba);
1900 return 0;
1901 }
1902
1903 /**
1904 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
1905 * @phba: pointer to lpfc hba data structure.
1906 *
1907 * This routine marks a HBA's management interface as not blocked. Once the
1908 * HBA's management interface is marked as not blocked, all the user space
1909 * access to the HBA, whether they are from sysfs interface or libdfc
1910 * interface will be allowed. The HBA is set to block the management interface
1911 * when the driver prepares the HBA interface for online or offline and then
1912 * set to unblock the management interface afterwards.
1913 **/
1914 void
1915 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
1916 {
1917 unsigned long iflag;
1918
1919 spin_lock_irqsave(&phba->hbalock, iflag);
1920 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
1921 spin_unlock_irqrestore(&phba->hbalock, iflag);
1922 }
1923
1924 /**
1925 * lpfc_offline_prep - Prepare a HBA to be brought offline
1926 * @phba: pointer to lpfc hba data structure.
1927 *
1928 * This routine is invoked to prepare a HBA to be brought offline. It performs
1929 * unregistration login to all the nodes on all vports and flushes the mailbox
1930 * queue to make it ready to be brought offline.
1931 **/
1932 void
1933 lpfc_offline_prep(struct lpfc_hba * phba)
1934 {
1935 struct lpfc_vport *vport = phba->pport;
1936 struct lpfc_nodelist *ndlp, *next_ndlp;
1937 struct lpfc_vport **vports;
1938 int i;
1939
1940 if (vport->fc_flag & FC_OFFLINE_MODE)
1941 return;
1942
1943 lpfc_block_mgmt_io(phba);
1944
1945 lpfc_linkdown(phba);
1946
1947 /* Issue an unreg_login to all nodes on all vports */
1948 vports = lpfc_create_vport_work_array(phba);
1949 if (vports != NULL) {
1950 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1951 struct Scsi_Host *shost;
1952
1953 if (vports[i]->load_flag & FC_UNLOADING)
1954 continue;
1955 shost = lpfc_shost_from_vport(vports[i]);
1956 list_for_each_entry_safe(ndlp, next_ndlp,
1957 &vports[i]->fc_nodes,
1958 nlp_listp) {
1959 if (!NLP_CHK_NODE_ACT(ndlp))
1960 continue;
1961 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
1962 continue;
1963 if (ndlp->nlp_type & NLP_FABRIC) {
1964 lpfc_disc_state_machine(vports[i], ndlp,
1965 NULL, NLP_EVT_DEVICE_RECOVERY);
1966 lpfc_disc_state_machine(vports[i], ndlp,
1967 NULL, NLP_EVT_DEVICE_RM);
1968 }
1969 spin_lock_irq(shost->host_lock);
1970 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
1971 spin_unlock_irq(shost->host_lock);
1972 lpfc_unreg_rpi(vports[i], ndlp);
1973 }
1974 }
1975 }
1976 lpfc_destroy_vport_work_array(phba, vports);
1977
1978 lpfc_sli_flush_mbox_queue(phba);
1979 }
1980
1981 /**
1982 * lpfc_offline - Bring a HBA offline
1983 * @phba: pointer to lpfc hba data structure.
1984 *
1985 * This routine actually brings a HBA offline. It stops all the timers
1986 * associated with the HBA, brings down the SLI layer, and eventually
1987 * marks the HBA as in offline state for the upper layer protocol.
1988 **/
1989 void
1990 lpfc_offline(struct lpfc_hba *phba)
1991 {
1992 struct Scsi_Host *shost;
1993 struct lpfc_vport **vports;
1994 int i;
1995
1996 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1997 return;
1998
1999 /* stop all timers associated with this hba */
2000 lpfc_stop_phba_timers(phba);
2001 vports = lpfc_create_vport_work_array(phba);
2002 if (vports != NULL)
2003 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
2004 lpfc_stop_vport_timers(vports[i]);
2005 lpfc_destroy_vport_work_array(phba, vports);
2006 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2007 "0460 Bring Adapter offline\n");
2008 /* Bring down the SLI Layer and cleanup. The HBA is offline
2009 now. */
2010 lpfc_sli_hba_down(phba);
2011 spin_lock_irq(&phba->hbalock);
2012 phba->work_ha = 0;
2013 spin_unlock_irq(&phba->hbalock);
2014 vports = lpfc_create_vport_work_array(phba);
2015 if (vports != NULL)
2016 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
2017 shost = lpfc_shost_from_vport(vports[i]);
2018 spin_lock_irq(shost->host_lock);
2019 vports[i]->work_port_events = 0;
2020 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2021 spin_unlock_irq(shost->host_lock);
2022 }
2023 lpfc_destroy_vport_work_array(phba, vports);
2024 }
2025
2026 /**
2027 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2028 * @phba: pointer to lpfc hba data structure.
2029 *
2030 * This routine is to free all the SCSI buffers and IOCBs from the driver
2031 * list back to kernel. It is called from lpfc_pci_remove_one to free
2032 * the internal resources before the device is removed from the system.
2033 *
2034 * Return codes
2035 * 0 - successful (for now, it always returns 0)
2036 **/
2037 static int
2038 lpfc_scsi_free(struct lpfc_hba *phba)
2039 {
2040 struct lpfc_scsi_buf *sb, *sb_next;
2041 struct lpfc_iocbq *io, *io_next;
2042
2043 spin_lock_irq(&phba->hbalock);
2044 /* Release all the lpfc_scsi_bufs maintained by this host. */
2045 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2046 list_del(&sb->list);
2047 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2048 sb->dma_handle);
2049 kfree(sb);
2050 phba->total_scsi_bufs--;
2051 }
2052
2053 /* Release all the lpfc_iocbq entries maintained by this host. */
2054 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2055 list_del(&io->list);
2056 kfree(io);
2057 phba->total_iocbq_bufs--;
2058 }
2059
2060 spin_unlock_irq(&phba->hbalock);
2061
2062 return 0;
2063 }
2064
2065 /**
2066 * lpfc_create_port - Create an FC port
2067 * @phba: pointer to lpfc hba data structure.
2068 * @instance: a unique integer ID to this FC port.
2069 * @dev: pointer to the device data structure.
2070 *
2071 * This routine creates a FC port for the upper layer protocol. The FC port
2072 * can be created on top of either a physical port or a virtual port provided
2073 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2074 * and associates the FC port created before adding the shost into the SCSI
2075 * layer.
2076 *
2077 * Return codes
2078 * @vport - pointer to the virtual N_Port data structure.
2079 * NULL - port create failed.
2080 **/
2081 struct lpfc_vport *
2082 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2083 {
2084 struct lpfc_vport *vport;
2085 struct Scsi_Host *shost;
2086 int error = 0;
2087
2088 if (dev != &phba->pcidev->dev)
2089 shost = scsi_host_alloc(&lpfc_vport_template,
2090 sizeof(struct lpfc_vport));
2091 else
2092 shost = scsi_host_alloc(&lpfc_template,
2093 sizeof(struct lpfc_vport));
2094 if (!shost)
2095 goto out;
2096
2097 vport = (struct lpfc_vport *) shost->hostdata;
2098 vport->phba = phba;
2099 vport->load_flag |= FC_LOADING;
2100 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2101 vport->fc_rscn_flush = 0;
2102
2103 lpfc_get_vport_cfgparam(vport);
2104 shost->unique_id = instance;
2105 shost->max_id = LPFC_MAX_TARGET;
2106 shost->max_lun = vport->cfg_max_luns;
2107 shost->this_id = -1;
2108 shost->max_cmd_len = 16;
2109
2110 /*
2111 * Set initial can_queue value since 0 is no longer supported and
2112 * scsi_add_host will fail. This will be adjusted later based on the
2113 * max xri value determined in hba setup.
2114 */
2115 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2116 if (dev != &phba->pcidev->dev) {
2117 shost->transportt = lpfc_vport_transport_template;
2118 vport->port_type = LPFC_NPIV_PORT;
2119 } else {
2120 shost->transportt = lpfc_transport_template;
2121 vport->port_type = LPFC_PHYSICAL_PORT;
2122 }
2123
2124 /* Initialize all internally managed lists. */
2125 INIT_LIST_HEAD(&vport->fc_nodes);
2126 spin_lock_init(&vport->work_port_lock);
2127
2128 init_timer(&vport->fc_disctmo);
2129 vport->fc_disctmo.function = lpfc_disc_timeout;
2130 vport->fc_disctmo.data = (unsigned long)vport;
2131
2132 init_timer(&vport->fc_fdmitmo);
2133 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2134 vport->fc_fdmitmo.data = (unsigned long)vport;
2135
2136 init_timer(&vport->els_tmofunc);
2137 vport->els_tmofunc.function = lpfc_els_timeout;
2138 vport->els_tmofunc.data = (unsigned long)vport;
2139
2140 error = scsi_add_host(shost, dev);
2141 if (error)
2142 goto out_put_shost;
2143
2144 spin_lock_irq(&phba->hbalock);
2145 list_add_tail(&vport->listentry, &phba->port_list);
2146 spin_unlock_irq(&phba->hbalock);
2147 return vport;
2148
2149 out_put_shost:
2150 scsi_host_put(shost);
2151 out:
2152 return NULL;
2153 }
2154
2155 /**
2156 * destroy_port - destroy an FC port
2157 * @vport: pointer to an lpfc virtual N_Port data structure.
2158 *
2159 * This routine destroys a FC port from the upper layer protocol. All the
2160 * resources associated with the port are released.
2161 **/
2162 void
2163 destroy_port(struct lpfc_vport *vport)
2164 {
2165 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2166 struct lpfc_hba *phba = vport->phba;
2167
2168 lpfc_debugfs_terminate(vport);
2169 fc_remove_host(shost);
2170 scsi_remove_host(shost);
2171
2172 spin_lock_irq(&phba->hbalock);
2173 list_del_init(&vport->listentry);
2174 spin_unlock_irq(&phba->hbalock);
2175
2176 lpfc_cleanup(vport);
2177 return;
2178 }
2179
2180 /**
2181 * lpfc_get_instance - Get a unique integer ID
2182 *
2183 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2184 * uses the kernel idr facility to perform the task.
2185 *
2186 * Return codes:
2187 * instance - a unique integer ID allocated as the new instance.
2188 * -1 - lpfc get instance failed.
2189 **/
2190 int
2191 lpfc_get_instance(void)
2192 {
2193 int instance = 0;
2194
2195 /* Assign an unused number */
2196 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2197 return -1;
2198 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2199 return -1;
2200 return instance;
2201 }
2202
2203 /**
2204 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2205 * @shost: pointer to SCSI host data structure.
2206 * @time: elapsed time of the scan in jiffies.
2207 *
2208 * This routine is called by the SCSI layer with a SCSI host to determine
2209 * whether the scan host is finished.
2210 *
2211 * Note: there is no scan_start function as adapter initialization will have
2212 * asynchronously kicked off the link initialization.
2213 *
2214 * Return codes
2215 * 0 - SCSI host scan is not over yet.
2216 * 1 - SCSI host scan is over.
2217 **/
2218 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2219 {
2220 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2221 struct lpfc_hba *phba = vport->phba;
2222 int stat = 0;
2223
2224 spin_lock_irq(shost->host_lock);
2225
2226 if (vport->load_flag & FC_UNLOADING) {
2227 stat = 1;
2228 goto finished;
2229 }
2230 if (time >= 30 * HZ) {
2231 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2232 "0461 Scanning longer than 30 "
2233 "seconds. Continuing initialization\n");
2234 stat = 1;
2235 goto finished;
2236 }
2237 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2238 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2239 "0465 Link down longer than 15 "
2240 "seconds. Continuing initialization\n");
2241 stat = 1;
2242 goto finished;
2243 }
2244
2245 if (vport->port_state != LPFC_VPORT_READY)
2246 goto finished;
2247 if (vport->num_disc_nodes || vport->fc_prli_sent)
2248 goto finished;
2249 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2250 goto finished;
2251 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2252 goto finished;
2253
2254 stat = 1;
2255
2256 finished:
2257 spin_unlock_irq(shost->host_lock);
2258 return stat;
2259 }
2260
2261 /**
2262 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2263 * @shost: pointer to SCSI host data structure.
2264 *
2265 * This routine initializes a given SCSI host attributes on a FC port. The
2266 * SCSI host can be either on top of a physical port or a virtual port.
2267 **/
2268 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2269 {
2270 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2271 struct lpfc_hba *phba = vport->phba;
2272 /*
2273 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2274 */
2275
2276 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2277 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2278 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2279
2280 memset(fc_host_supported_fc4s(shost), 0,
2281 sizeof(fc_host_supported_fc4s(shost)));
2282 fc_host_supported_fc4s(shost)[2] = 1;
2283 fc_host_supported_fc4s(shost)[7] = 1;
2284
2285 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2286 sizeof fc_host_symbolic_name(shost));
2287
2288 fc_host_supported_speeds(shost) = 0;
2289 if (phba->lmt & LMT_10Gb)
2290 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2291 if (phba->lmt & LMT_8Gb)
2292 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2293 if (phba->lmt & LMT_4Gb)
2294 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2295 if (phba->lmt & LMT_2Gb)
2296 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2297 if (phba->lmt & LMT_1Gb)
2298 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2299
2300 fc_host_maxframe_size(shost) =
2301 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2302 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2303
2304 /* This value is also unchanging */
2305 memset(fc_host_active_fc4s(shost), 0,
2306 sizeof(fc_host_active_fc4s(shost)));
2307 fc_host_active_fc4s(shost)[2] = 1;
2308 fc_host_active_fc4s(shost)[7] = 1;
2309
2310 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2311 spin_lock_irq(shost->host_lock);
2312 vport->load_flag &= ~FC_LOADING;
2313 spin_unlock_irq(shost->host_lock);
2314 }
2315
2316 /**
2317 * lpfc_enable_msix - Enable MSI-X interrupt mode
2318 * @phba: pointer to lpfc hba data structure.
2319 *
2320 * This routine is invoked to enable the MSI-X interrupt vectors. The kernel
2321 * function pci_enable_msix() is called to enable the MSI-X vectors. Note that
2322 * pci_enable_msix(), once invoked, enables either all or nothing, depending
2323 * on the current availability of PCI vector resources. The device driver is
2324 * responsible for calling the individual request_irq() to register each MSI-X
2325 * vector with a interrupt handler, which is done in this function. Note that
2326 * later when device is unloading, the driver should always call free_irq()
2327 * on all MSI-X vectors it has done request_irq() on before calling
2328 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
2329 * will be left with MSI-X enabled and leaks its vectors.
2330 *
2331 * Return codes
2332 * 0 - sucessful
2333 * other values - error
2334 **/
2335 static int
2336 lpfc_enable_msix(struct lpfc_hba *phba)
2337 {
2338 int rc, i;
2339 LPFC_MBOXQ_t *pmb;
2340
2341 /* Set up MSI-X multi-message vectors */
2342 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2343 phba->msix_entries[i].entry = i;
2344
2345 /* Configure MSI-X capability structure */
2346 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
2347 ARRAY_SIZE(phba->msix_entries));
2348 if (rc) {
2349 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2350 "0420 PCI enable MSI-X failed (%d)\n", rc);
2351 goto msi_fail_out;
2352 } else
2353 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2354 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2355 "0477 MSI-X entry[%d]: vector=x%x "
2356 "message=%d\n", i,
2357 phba->msix_entries[i].vector,
2358 phba->msix_entries[i].entry);
2359 /*
2360 * Assign MSI-X vectors to interrupt handlers
2361 */
2362
2363 /* vector-0 is associated to slow-path handler */
2364 rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler,
2365 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba);
2366 if (rc) {
2367 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2368 "0421 MSI-X slow-path request_irq failed "
2369 "(%d)\n", rc);
2370 goto msi_fail_out;
2371 }
2372
2373 /* vector-1 is associated to fast-path handler */
2374 rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler,
2375 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba);
2376
2377 if (rc) {
2378 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2379 "0429 MSI-X fast-path request_irq failed "
2380 "(%d)\n", rc);
2381 goto irq_fail_out;
2382 }
2383
2384 /*
2385 * Configure HBA MSI-X attention conditions to messages
2386 */
2387 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2388
2389 if (!pmb) {
2390 rc = -ENOMEM;
2391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2392 "0474 Unable to allocate memory for issuing "
2393 "MBOX_CONFIG_MSI command\n");
2394 goto mem_fail_out;
2395 }
2396 rc = lpfc_config_msi(phba, pmb);
2397 if (rc)
2398 goto mbx_fail_out;
2399 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
2400 if (rc != MBX_SUCCESS) {
2401 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2402 "0351 Config MSI mailbox command failed, "
2403 "mbxCmd x%x, mbxStatus x%x\n",
2404 pmb->mb.mbxCommand, pmb->mb.mbxStatus);
2405 goto mbx_fail_out;
2406 }
2407
2408 /* Free memory allocated for mailbox command */
2409 mempool_free(pmb, phba->mbox_mem_pool);
2410 return rc;
2411
2412 mbx_fail_out:
2413 /* Free memory allocated for mailbox command */
2414 mempool_free(pmb, phba->mbox_mem_pool);
2415
2416 mem_fail_out:
2417 /* free the irq already requested */
2418 free_irq(phba->msix_entries[1].vector, phba);
2419
2420 irq_fail_out:
2421 /* free the irq already requested */
2422 free_irq(phba->msix_entries[0].vector, phba);
2423
2424 msi_fail_out:
2425 /* Unconfigure MSI-X capability structure */
2426 pci_disable_msix(phba->pcidev);
2427 return rc;
2428 }
2429
2430 /**
2431 * lpfc_disable_msix - Disable MSI-X interrupt mode
2432 * @phba: pointer to lpfc hba data structure.
2433 *
2434 * This routine is invoked to release the MSI-X vectors and then disable the
2435 * MSI-X interrupt mode.
2436 **/
2437 static void
2438 lpfc_disable_msix(struct lpfc_hba *phba)
2439 {
2440 int i;
2441
2442 /* Free up MSI-X multi-message vectors */
2443 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2444 free_irq(phba->msix_entries[i].vector, phba);
2445 /* Disable MSI-X */
2446 pci_disable_msix(phba->pcidev);
2447 }
2448
2449 /**
2450 * lpfc_enable_msi - Enable MSI interrupt mode
2451 * @phba: pointer to lpfc hba data structure.
2452 *
2453 * This routine is invoked to enable the MSI interrupt mode. The kernel
2454 * function pci_enable_msi() is called to enable the MSI vector. The
2455 * device driver is responsible for calling the request_irq() to register
2456 * MSI vector with a interrupt the handler, which is done in this function.
2457 *
2458 * Return codes
2459 * 0 - sucessful
2460 * other values - error
2461 */
2462 static int
2463 lpfc_enable_msi(struct lpfc_hba *phba)
2464 {
2465 int rc;
2466
2467 rc = pci_enable_msi(phba->pcidev);
2468 if (!rc)
2469 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2470 "0462 PCI enable MSI mode success.\n");
2471 else {
2472 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2473 "0471 PCI enable MSI mode failed (%d)\n", rc);
2474 return rc;
2475 }
2476
2477 rc = request_irq(phba->pcidev->irq, lpfc_intr_handler,
2478 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2479 if (rc) {
2480 pci_disable_msi(phba->pcidev);
2481 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2482 "0478 MSI request_irq failed (%d)\n", rc);
2483 }
2484 return rc;
2485 }
2486
2487 /**
2488 * lpfc_disable_msi - Disable MSI interrupt mode
2489 * @phba: pointer to lpfc hba data structure.
2490 *
2491 * This routine is invoked to disable the MSI interrupt mode. The driver
2492 * calls free_irq() on MSI vector it has done request_irq() on before
2493 * calling pci_disable_msi(). Failure to do so results in a BUG_ON() and
2494 * a device will be left with MSI enabled and leaks its vector.
2495 */
2496
2497 static void
2498 lpfc_disable_msi(struct lpfc_hba *phba)
2499 {
2500 free_irq(phba->pcidev->irq, phba);
2501 pci_disable_msi(phba->pcidev);
2502 return;
2503 }
2504
2505 /**
2506 * lpfc_log_intr_mode - Log the active interrupt mode
2507 * @phba: pointer to lpfc hba data structure.
2508 * @intr_mode: active interrupt mode adopted.
2509 *
2510 * This routine it invoked to log the currently used active interrupt mode
2511 * to the device.
2512 */
2513 static void
2514 lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
2515 {
2516 switch (intr_mode) {
2517 case 0:
2518 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2519 "0470 Enable INTx interrupt mode.\n");
2520 break;
2521 case 1:
2522 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2523 "0481 Enabled MSI interrupt mode.\n");
2524 break;
2525 case 2:
2526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2527 "0480 Enabled MSI-X interrupt mode.\n");
2528 break;
2529 default:
2530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2531 "0482 Illegal interrupt mode.\n");
2532 break;
2533 }
2534 return;
2535 }
2536
2537 static void
2538 lpfc_stop_port(struct lpfc_hba *phba)
2539 {
2540 /* Clear all interrupt enable conditions */
2541 writel(0, phba->HCregaddr);
2542 readl(phba->HCregaddr); /* flush */
2543 /* Clear all pending interrupts */
2544 writel(0xffffffff, phba->HAregaddr);
2545 readl(phba->HAregaddr); /* flush */
2546
2547 /* Reset some HBA SLI setup states */
2548 lpfc_stop_phba_timers(phba);
2549 phba->pport->work_port_events = 0;
2550
2551 return;
2552 }
2553
2554 /**
2555 * lpfc_enable_intr - Enable device interrupt
2556 * @phba: pointer to lpfc hba data structure.
2557 *
2558 * This routine is invoked to enable device interrupt and associate driver's
2559 * interrupt handler(s) to interrupt vector(s). Depends on the interrupt
2560 * mode configured to the driver, the driver will try to fallback from the
2561 * configured interrupt mode to an interrupt mode which is supported by the
2562 * platform, kernel, and device in the order of: MSI-X -> MSI -> IRQ.
2563 *
2564 * Return codes
2565 * 0 - sucessful
2566 * other values - error
2567 **/
2568 static uint32_t
2569 lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
2570 {
2571 uint32_t intr_mode = LPFC_INTR_ERROR;
2572 int retval;
2573
2574 if (cfg_mode == 2) {
2575 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
2576 retval = lpfc_sli_config_port(phba, 3);
2577 if (!retval) {
2578 /* Now, try to enable MSI-X interrupt mode */
2579 retval = lpfc_enable_msix(phba);
2580 if (!retval) {
2581 /* Indicate initialization to MSI-X mode */
2582 phba->intr_type = MSIX;
2583 intr_mode = 2;
2584 }
2585 }
2586 }
2587
2588 /* Fallback to MSI if MSI-X initialization failed */
2589 if (cfg_mode >= 1 && phba->intr_type == NONE) {
2590 retval = lpfc_enable_msi(phba);
2591 if (!retval) {
2592 /* Indicate initialization to MSI mode */
2593 phba->intr_type = MSI;
2594 intr_mode = 1;
2595 }
2596 }
2597
2598 /* Fallback to INTx if both MSI-X/MSI initalization failed */
2599 if (phba->intr_type == NONE) {
2600 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
2601 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2602 if (!retval) {
2603 /* Indicate initialization to INTx mode */
2604 phba->intr_type = INTx;
2605 intr_mode = 0;
2606 }
2607 }
2608 return intr_mode;
2609 }
2610
2611 /**
2612 * lpfc_disable_intr - Disable device interrupt
2613 * @phba: pointer to lpfc hba data structure.
2614 *
2615 * This routine is invoked to disable device interrupt and disassociate the
2616 * driver's interrupt handler(s) from interrupt vector(s). Depending on the
2617 * interrupt mode, the driver will release the interrupt vector(s) for the
2618 * message signaled interrupt.
2619 **/
2620 static void
2621 lpfc_disable_intr(struct lpfc_hba *phba)
2622 {
2623 /* Disable the currently initialized interrupt mode */
2624 if (phba->intr_type == MSIX)
2625 lpfc_disable_msix(phba);
2626 else if (phba->intr_type == MSI)
2627 lpfc_disable_msi(phba);
2628 else if (phba->intr_type == INTx)
2629 free_irq(phba->pcidev->irq, phba);
2630
2631 /* Reset interrupt management states */
2632 phba->intr_type = NONE;
2633 phba->sli.slistat.sli_intr = 0;
2634
2635 return;
2636 }
2637
2638 /**
2639 * lpfc_pci_probe_one - lpfc PCI probe func to register device to PCI subsystem
2640 * @pdev: pointer to PCI device
2641 * @pid: pointer to PCI device identifier
2642 *
2643 * This routine is to be registered to the kernel's PCI subsystem. When an
2644 * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at
2645 * PCI device-specific information of the device and driver to see if the
2646 * driver state that it can support this kind of device. If the match is
2647 * successful, the driver core invokes this routine. If this routine
2648 * determines it can claim the HBA, it does all the initialization that it
2649 * needs to do to handle the HBA properly.
2650 *
2651 * Return code
2652 * 0 - driver can claim the device
2653 * negative value - driver can not claim the device
2654 **/
2655 static int __devinit
2656 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2657 {
2658 struct lpfc_vport *vport = NULL;
2659 struct lpfc_hba *phba;
2660 struct lpfc_sli *psli;
2661 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
2662 struct Scsi_Host *shost = NULL;
2663 void *ptr;
2664 unsigned long bar0map_len, bar2map_len;
2665 int error = -ENODEV, retval;
2666 int i, hbq_count;
2667 uint16_t iotag;
2668 uint32_t cfg_mode, intr_mode;
2669 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
2670 struct lpfc_adapter_event_header adapter_event;
2671
2672 if (pci_enable_device_mem(pdev))
2673 goto out;
2674 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
2675 goto out_disable_device;
2676
2677 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
2678 if (!phba)
2679 goto out_release_regions;
2680
2681 atomic_set(&phba->fast_event_count, 0);
2682 spin_lock_init(&phba->hbalock);
2683
2684 /* Initialize ndlp management spinlock */
2685 spin_lock_init(&phba->ndlp_lock);
2686
2687 phba->pcidev = pdev;
2688
2689 /* Assign an unused board number */
2690 if ((phba->brd_no = lpfc_get_instance()) < 0)
2691 goto out_free_phba;
2692
2693 INIT_LIST_HEAD(&phba->port_list);
2694 init_waitqueue_head(&phba->wait_4_mlo_m_q);
2695 /*
2696 * Get all the module params for configuring this host and then
2697 * establish the host.
2698 */
2699 lpfc_get_cfgparam(phba);
2700 phba->max_vpi = LPFC_MAX_VPI;
2701
2702 /* Initialize timers used by driver */
2703 init_timer(&phba->hb_tmofunc);
2704 phba->hb_tmofunc.function = lpfc_hb_timeout;
2705 phba->hb_tmofunc.data = (unsigned long)phba;
2706
2707 psli = &phba->sli;
2708 init_timer(&psli->mbox_tmo);
2709 psli->mbox_tmo.function = lpfc_mbox_timeout;
2710 psli->mbox_tmo.data = (unsigned long) phba;
2711 init_timer(&phba->fcp_poll_timer);
2712 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2713 phba->fcp_poll_timer.data = (unsigned long) phba;
2714 init_timer(&phba->fabric_block_timer);
2715 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
2716 phba->fabric_block_timer.data = (unsigned long) phba;
2717 init_timer(&phba->eratt_poll);
2718 phba->eratt_poll.function = lpfc_poll_eratt;
2719 phba->eratt_poll.data = (unsigned long) phba;
2720
2721 pci_set_master(pdev);
2722 pci_save_state(pdev);
2723 pci_try_set_mwi(pdev);
2724
2725 if (pci_set_dma_mask(phba->pcidev, DMA_BIT_MASK(64)) != 0)
2726 if (pci_set_dma_mask(phba->pcidev, DMA_BIT_MASK(32)) != 0)
2727 goto out_idr_remove;
2728
2729 /*
2730 * Get the bus address of Bar0 and Bar2 and the number of bytes
2731 * required by each mapping.
2732 */
2733 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
2734 bar0map_len = pci_resource_len(phba->pcidev, 0);
2735
2736 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
2737 bar2map_len = pci_resource_len(phba->pcidev, 2);
2738
2739 /* Map HBA SLIM to a kernel virtual address. */
2740 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
2741 if (!phba->slim_memmap_p) {
2742 error = -ENODEV;
2743 dev_printk(KERN_ERR, &pdev->dev,
2744 "ioremap failed for SLIM memory.\n");
2745 goto out_idr_remove;
2746 }
2747
2748 /* Map HBA Control Registers to a kernel virtual address. */
2749 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
2750 if (!phba->ctrl_regs_memmap_p) {
2751 error = -ENODEV;
2752 dev_printk(KERN_ERR, &pdev->dev,
2753 "ioremap failed for HBA control registers.\n");
2754 goto out_iounmap_slim;
2755 }
2756
2757 /* Allocate memory for SLI-2 structures */
2758 phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev,
2759 SLI2_SLIM_SIZE,
2760 &phba->slim2p.phys,
2761 GFP_KERNEL);
2762 if (!phba->slim2p.virt)
2763 goto out_iounmap;
2764
2765 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
2766 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
2767 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
2768 phba->IOCBs = (phba->slim2p.virt +
2769 offsetof(struct lpfc_sli2_slim, IOCBs));
2770
2771 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev,
2772 lpfc_sli_hbq_size(),
2773 &phba->hbqslimp.phys,
2774 GFP_KERNEL);
2775 if (!phba->hbqslimp.virt)
2776 goto out_free_slim;
2777
2778 hbq_count = lpfc_sli_hbq_count();
2779 ptr = phba->hbqslimp.virt;
2780 for (i = 0; i < hbq_count; ++i) {
2781 phba->hbqs[i].hbq_virt = ptr;
2782 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
2783 ptr += (lpfc_hbq_defs[i]->entry_count *
2784 sizeof(struct lpfc_hbq_entry));
2785 }
2786 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
2787 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
2788
2789 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
2790
2791 INIT_LIST_HEAD(&phba->hbqbuf_in_list);
2792
2793 /* Initialize the SLI Layer to run with lpfc HBAs. */
2794 lpfc_sli_setup(phba);
2795 lpfc_sli_queue_setup(phba);
2796
2797 retval = lpfc_mem_alloc(phba);
2798 if (retval) {
2799 error = retval;
2800 goto out_free_hbqslimp;
2801 }
2802
2803 /* Initialize and populate the iocb list per host. */
2804 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
2805 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
2806 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
2807 if (iocbq_entry == NULL) {
2808 printk(KERN_ERR "%s: only allocated %d iocbs of "
2809 "expected %d count. Unloading driver.\n",
2810 __func__, i, LPFC_IOCB_LIST_CNT);
2811 error = -ENOMEM;
2812 goto out_free_iocbq;
2813 }
2814
2815 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
2816 if (iotag == 0) {
2817 kfree (iocbq_entry);
2818 printk(KERN_ERR "%s: failed to allocate IOTAG. "
2819 "Unloading driver.\n",
2820 __func__);
2821 error = -ENOMEM;
2822 goto out_free_iocbq;
2823 }
2824
2825 spin_lock_irq(&phba->hbalock);
2826 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
2827 phba->total_iocbq_bufs++;
2828 spin_unlock_irq(&phba->hbalock);
2829 }
2830
2831 /* Initialize HBA structure */
2832 phba->fc_edtov = FF_DEF_EDTOV;
2833 phba->fc_ratov = FF_DEF_RATOV;
2834 phba->fc_altov = FF_DEF_ALTOV;
2835 phba->fc_arbtov = FF_DEF_ARBTOV;
2836
2837 INIT_LIST_HEAD(&phba->work_list);
2838 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
2839 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
2840
2841 /* Initialize the wait queue head for the kernel thread */
2842 init_waitqueue_head(&phba->work_waitq);
2843
2844 /* Startup the kernel thread for this host adapter. */
2845 phba->worker_thread = kthread_run(lpfc_do_work, phba,
2846 "lpfc_worker_%d", phba->brd_no);
2847 if (IS_ERR(phba->worker_thread)) {
2848 error = PTR_ERR(phba->worker_thread);
2849 goto out_free_iocbq;
2850 }
2851
2852 /* Initialize the list of scsi buffers used by driver for scsi IO. */
2853 spin_lock_init(&phba->scsi_buf_list_lock);
2854 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
2855
2856 /* Initialize list of fabric iocbs */
2857 INIT_LIST_HEAD(&phba->fabric_iocb_list);
2858
2859 /* Initialize list to save ELS buffers */
2860 INIT_LIST_HEAD(&phba->elsbuf);
2861
2862 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
2863 if (!vport)
2864 goto out_kthread_stop;
2865
2866 shost = lpfc_shost_from_vport(vport);
2867 phba->pport = vport;
2868 lpfc_debugfs_initialize(vport);
2869
2870 pci_set_drvdata(pdev, shost);
2871
2872 phba->MBslimaddr = phba->slim_memmap_p;
2873 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
2874 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
2875 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
2876 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
2877
2878 /* Configure sysfs attributes */
2879 if (lpfc_alloc_sysfs_attr(vport)) {
2880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2881 "1476 Failed to allocate sysfs attr\n");
2882 error = -ENOMEM;
2883 goto out_destroy_port;
2884 }
2885
2886 cfg_mode = phba->cfg_use_msi;
2887 while (true) {
2888 /* Configure and enable interrupt */
2889 intr_mode = lpfc_enable_intr(phba, cfg_mode);
2890 if (intr_mode == LPFC_INTR_ERROR) {
2891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2892 "0426 Failed to enable interrupt.\n");
2893 goto out_free_sysfs_attr;
2894 }
2895 /* HBA SLI setup */
2896 if (lpfc_sli_hba_setup(phba)) {
2897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2898 "1477 Failed to set up hba\n");
2899 error = -ENODEV;
2900 goto out_remove_device;
2901 }
2902
2903 /* Wait 50ms for the interrupts of previous mailbox commands */
2904 msleep(50);
2905 /* Check active interrupts received */
2906 if (phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
2907 /* Log the current active interrupt mode */
2908 phba->intr_mode = intr_mode;
2909 lpfc_log_intr_mode(phba, intr_mode);
2910 break;
2911 } else {
2912 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2913 "0451 Configure interrupt mode (%d) "
2914 "failed active interrupt test.\n",
2915 intr_mode);
2916 if (intr_mode == 0) {
2917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2918 "0479 Failed to enable "
2919 "interrupt.\n");
2920 error = -ENODEV;
2921 goto out_remove_device;
2922 }
2923 /* Stop HBA SLI setups */
2924 lpfc_stop_port(phba);
2925 /* Disable the current interrupt mode */
2926 lpfc_disable_intr(phba);
2927 /* Try next level of interrupt mode */
2928 cfg_mode = --intr_mode;
2929 }
2930 }
2931
2932 /*
2933 * hba setup may have changed the hba_queue_depth so we need to adjust
2934 * the value of can_queue.
2935 */
2936 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2937 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
2938
2939 if (lpfc_prot_mask && lpfc_prot_guard) {
2940 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2941 "1478 Registering BlockGuard with the "
2942 "SCSI layer\n");
2943
2944 scsi_host_set_prot(shost, lpfc_prot_mask);
2945 scsi_host_set_guard(shost, lpfc_prot_guard);
2946 }
2947 }
2948
2949 if (!_dump_buf_data) {
2950 int pagecnt = 10;
2951 while (pagecnt) {
2952 spin_lock_init(&_dump_buf_lock);
2953 _dump_buf_data =
2954 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
2955 if (_dump_buf_data) {
2956 printk(KERN_ERR "BLKGRD allocated %d pages for "
2957 "_dump_buf_data at 0x%p\n",
2958 (1 << pagecnt), _dump_buf_data);
2959 _dump_buf_data_order = pagecnt;
2960 memset(_dump_buf_data, 0, ((1 << PAGE_SHIFT)
2961 << pagecnt));
2962 break;
2963 } else {
2964 --pagecnt;
2965 }
2966
2967 }
2968
2969 if (!_dump_buf_data_order)
2970 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
2971 "memory for hexdump\n");
2972
2973 } else {
2974 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
2975 "\n", _dump_buf_data);
2976 }
2977
2978
2979 if (!_dump_buf_dif) {
2980 int pagecnt = 10;
2981 while (pagecnt) {
2982 _dump_buf_dif =
2983 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
2984 if (_dump_buf_dif) {
2985 printk(KERN_ERR "BLKGRD allocated %d pages for "
2986 "_dump_buf_dif at 0x%p\n",
2987 (1 << pagecnt), _dump_buf_dif);
2988 _dump_buf_dif_order = pagecnt;
2989 memset(_dump_buf_dif, 0, ((1 << PAGE_SHIFT)
2990 << pagecnt));
2991 break;
2992 } else {
2993 --pagecnt;
2994 }
2995
2996 }
2997
2998 if (!_dump_buf_dif_order)
2999 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
3000 "memory for hexdump\n");
3001
3002 } else {
3003 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
3004 _dump_buf_dif);
3005 }
3006
3007 lpfc_host_attrib_init(shost);
3008
3009 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
3010 spin_lock_irq(shost->host_lock);
3011 lpfc_poll_start_timer(phba);
3012 spin_unlock_irq(shost->host_lock);
3013 }
3014
3015 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3016 "0428 Perform SCSI scan\n");
3017 /* Send board arrival event to upper layer */
3018 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
3019 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
3020 fc_host_post_vendor_event(shost, fc_get_event_number(),
3021 sizeof(adapter_event),
3022 (char *) &adapter_event,
3023 LPFC_NL_VENDOR_ID);
3024
3025 return 0;
3026
3027 out_remove_device:
3028 spin_lock_irq(shost->host_lock);
3029 vport->load_flag |= FC_UNLOADING;
3030 spin_unlock_irq(shost->host_lock);
3031 lpfc_stop_phba_timers(phba);
3032 phba->pport->work_port_events = 0;
3033 lpfc_disable_intr(phba);
3034 lpfc_sli_hba_down(phba);
3035 lpfc_sli_brdrestart(phba);
3036 out_free_sysfs_attr:
3037 lpfc_free_sysfs_attr(vport);
3038 out_destroy_port:
3039 destroy_port(vport);
3040 out_kthread_stop:
3041 kthread_stop(phba->worker_thread);
3042 out_free_iocbq:
3043 list_for_each_entry_safe(iocbq_entry, iocbq_next,
3044 &phba->lpfc_iocb_list, list) {
3045 kfree(iocbq_entry);
3046 phba->total_iocbq_bufs--;
3047 }
3048 lpfc_mem_free(phba);
3049 out_free_hbqslimp:
3050 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
3051 phba->hbqslimp.virt, phba->hbqslimp.phys);
3052 out_free_slim:
3053 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
3054 phba->slim2p.virt, phba->slim2p.phys);
3055 out_iounmap:
3056 iounmap(phba->ctrl_regs_memmap_p);
3057 out_iounmap_slim:
3058 iounmap(phba->slim_memmap_p);
3059 out_idr_remove:
3060 idr_remove(&lpfc_hba_index, phba->brd_no);
3061 out_free_phba:
3062 kfree(phba);
3063 out_release_regions:
3064 pci_release_selected_regions(pdev, bars);
3065 out_disable_device:
3066 pci_disable_device(pdev);
3067 out:
3068 pci_set_drvdata(pdev, NULL);
3069 if (shost)
3070 scsi_host_put(shost);
3071 return error;
3072 }
3073
3074 /**
3075 * lpfc_pci_remove_one - lpfc PCI func to unregister device from PCI subsystem
3076 * @pdev: pointer to PCI device
3077 *
3078 * This routine is to be registered to the kernel's PCI subsystem. When an
3079 * Emulex HBA is removed from PCI bus, it performs all the necessary cleanup
3080 * for the HBA device to be removed from the PCI subsystem properly.
3081 **/
3082 static void __devexit
3083 lpfc_pci_remove_one(struct pci_dev *pdev)
3084 {
3085 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3086 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3087 struct lpfc_vport **vports;
3088 struct lpfc_hba *phba = vport->phba;
3089 int i;
3090 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
3091
3092 spin_lock_irq(&phba->hbalock);
3093 vport->load_flag |= FC_UNLOADING;
3094 spin_unlock_irq(&phba->hbalock);
3095
3096 lpfc_free_sysfs_attr(vport);
3097
3098 /* Release all the vports against this physical port */
3099 vports = lpfc_create_vport_work_array(phba);
3100 if (vports != NULL)
3101 for (i = 1; i <= phba->max_vpi && vports[i] != NULL; i++)
3102 fc_vport_terminate(vports[i]->fc_vport);
3103 lpfc_destroy_vport_work_array(phba, vports);
3104
3105 /* Remove FC host and then SCSI host with the physical port */
3106 fc_remove_host(shost);
3107 scsi_remove_host(shost);
3108 lpfc_cleanup(vport);
3109
3110 /*
3111 * Bring down the SLI Layer. This step disable all interrupts,
3112 * clears the rings, discards all mailbox commands, and resets
3113 * the HBA.
3114 */
3115
3116 /* HBA interrupt will be diabled after this call */
3117 lpfc_sli_hba_down(phba);
3118 /* Stop kthread signal shall trigger work_done one more time */
3119 kthread_stop(phba->worker_thread);
3120 /* Final cleanup of txcmplq and reset the HBA */
3121 lpfc_sli_brdrestart(phba);
3122
3123 lpfc_stop_phba_timers(phba);
3124 spin_lock_irq(&phba->hbalock);
3125 list_del_init(&vport->listentry);
3126 spin_unlock_irq(&phba->hbalock);
3127
3128 lpfc_debugfs_terminate(vport);
3129
3130 /* Disable interrupt */
3131 lpfc_disable_intr(phba);
3132
3133 pci_set_drvdata(pdev, NULL);
3134 scsi_host_put(shost);
3135
3136 /*
3137 * Call scsi_free before mem_free since scsi bufs are released to their
3138 * corresponding pools here.
3139 */
3140 lpfc_scsi_free(phba);
3141 lpfc_mem_free(phba);
3142
3143 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
3144 phba->hbqslimp.virt, phba->hbqslimp.phys);
3145
3146 /* Free resources associated with SLI2 interface */
3147 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
3148 phba->slim2p.virt, phba->slim2p.phys);
3149
3150 /* unmap adapter SLIM and Control Registers */
3151 iounmap(phba->ctrl_regs_memmap_p);
3152 iounmap(phba->slim_memmap_p);
3153
3154 idr_remove(&lpfc_hba_index, phba->brd_no);
3155
3156 kfree(phba);
3157
3158 pci_release_selected_regions(pdev, bars);
3159 pci_disable_device(pdev);
3160 }
3161
3162 /**
3163 * lpfc_pci_suspend_one - lpfc PCI func to suspend device for power management
3164 * @pdev: pointer to PCI device
3165 * @msg: power management message
3166 *
3167 * This routine is to be registered to the kernel's PCI subsystem to support
3168 * system Power Management (PM). When PM invokes this method, it quiesces the
3169 * device by stopping the driver's worker thread for the device, turning off
3170 * device's interrupt and DMA, and bring the device offline. Note that as the
3171 * driver implements the minimum PM requirements to a power-aware driver's PM
3172 * support for suspend/resume -- all the possible PM messages (SUSPEND,
3173 * HIBERNATE, FREEZE) to the suspend() method call will be treated as SUSPEND
3174 * and the driver will fully reinitialize its device during resume() method
3175 * call, the driver will set device to PCI_D3hot state in PCI config space
3176 * instead of setting it according to the @msg provided by the PM.
3177 *
3178 * Return code
3179 * 0 - driver suspended the device
3180 * Error otherwise
3181 **/
3182 static int
3183 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
3184 {
3185 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3186 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3187
3188 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3189 "0473 PCI device Power Management suspend.\n");
3190
3191 /* Bring down the device */
3192 lpfc_offline_prep(phba);
3193 lpfc_offline(phba);
3194 kthread_stop(phba->worker_thread);
3195
3196 /* Disable interrupt from device */
3197 lpfc_disable_intr(phba);
3198
3199 /* Save device state to PCI config space */
3200 pci_save_state(pdev);
3201 pci_set_power_state(pdev, PCI_D3hot);
3202
3203 return 0;
3204 }
3205
3206 /**
3207 * lpfc_pci_resume_one - lpfc PCI func to resume device for power management
3208 * @pdev: pointer to PCI device
3209 *
3210 * This routine is to be registered to the kernel's PCI subsystem to support
3211 * system Power Management (PM). When PM invokes this method, it restores
3212 * the device's PCI config space state and fully reinitializes the device
3213 * and brings it online. Note that as the driver implements the minimum PM
3214 * requirements to a power-aware driver's PM for suspend/resume -- all
3215 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
3216 * method call will be treated as SUSPEND and the driver will fully
3217 * reinitialize its device during resume() method call, the device will be
3218 * set to PCI_D0 directly in PCI config space before restoring the state.
3219 *
3220 * Return code
3221 * 0 - driver suspended the device
3222 * Error otherwise
3223 **/
3224 static int
3225 lpfc_pci_resume_one(struct pci_dev *pdev)
3226 {
3227 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3228 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3229 uint32_t intr_mode;
3230 int error;
3231
3232 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3233 "0452 PCI device Power Management resume.\n");
3234
3235 /* Restore device state from PCI config space */
3236 pci_set_power_state(pdev, PCI_D0);
3237 pci_restore_state(pdev);
3238 if (pdev->is_busmaster)
3239 pci_set_master(pdev);
3240
3241 /* Startup the kernel thread for this host adapter. */
3242 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3243 "lpfc_worker_%d", phba->brd_no);
3244 if (IS_ERR(phba->worker_thread)) {
3245 error = PTR_ERR(phba->worker_thread);
3246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3247 "0434 PM resume failed to start worker "
3248 "thread: error=x%x.\n", error);
3249 return error;
3250 }
3251
3252 /* Configure and enable interrupt */
3253 intr_mode = lpfc_enable_intr(phba, phba->intr_mode);
3254 if (intr_mode == LPFC_INTR_ERROR) {
3255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3256 "0430 PM resume Failed to enable interrupt\n");
3257 return -EIO;
3258 } else
3259 phba->intr_mode = intr_mode;
3260
3261 /* Restart HBA and bring it online */
3262 lpfc_sli_brdrestart(phba);
3263 lpfc_online(phba);
3264
3265 /* Log the current active interrupt mode */
3266 lpfc_log_intr_mode(phba, phba->intr_mode);
3267
3268 return 0;
3269 }
3270
3271 /**
3272 * lpfc_io_error_detected - Driver method for handling PCI I/O error detected
3273 * @pdev: pointer to PCI device.
3274 * @state: the current PCI connection state.
3275 *
3276 * This routine is registered to the PCI subsystem for error handling. This
3277 * function is called by the PCI subsystem after a PCI bus error affecting
3278 * this device has been detected. When this function is invoked, it will
3279 * need to stop all the I/Os and interrupt(s) to the device. Once that is
3280 * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to
3281 * perform proper recovery as desired.
3282 *
3283 * Return codes
3284 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
3285 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
3286 **/
3287 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
3288 pci_channel_state_t state)
3289 {
3290 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3291 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3292 struct lpfc_sli *psli = &phba->sli;
3293 struct lpfc_sli_ring *pring;
3294
3295 if (state == pci_channel_io_perm_failure) {
3296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3297 "0472 PCI channel I/O permanent failure\n");
3298 /* Block all SCSI devices' I/Os on the host */
3299 lpfc_scsi_dev_block(phba);
3300 /* Clean up all driver's outstanding SCSI I/Os */
3301 lpfc_sli_flush_fcp_rings(phba);
3302 return PCI_ERS_RESULT_DISCONNECT;
3303 }
3304
3305 pci_disable_device(pdev);
3306 /*
3307 * There may be I/Os dropped by the firmware.
3308 * Error iocb (I/O) on txcmplq and let the SCSI layer
3309 * retry it after re-establishing link.
3310 */
3311 pring = &psli->ring[psli->fcp_ring];
3312 lpfc_sli_abort_iocb_ring(phba, pring);
3313
3314 /* Disable interrupt */
3315 lpfc_disable_intr(phba);
3316
3317 /* Request a slot reset. */
3318 return PCI_ERS_RESULT_NEED_RESET;
3319 }
3320
3321 /**
3322 * lpfc_io_slot_reset - Restart a PCI device from scratch
3323 * @pdev: pointer to PCI device.
3324 *
3325 * This routine is registered to the PCI subsystem for error handling. This is
3326 * called after PCI bus has been reset to restart the PCI card from scratch,
3327 * as if from a cold-boot. During the PCI subsystem error recovery, after the
3328 * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform
3329 * proper error recovery and then call this routine before calling the .resume
3330 * method to recover the device. This function will initialize the HBA device,
3331 * enable the interrupt, but it will just put the HBA to offline state without
3332 * passing any I/O traffic.
3333 *
3334 * Return codes
3335 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
3336 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
3337 */
3338 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
3339 {
3340 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3341 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3342 struct lpfc_sli *psli = &phba->sli;
3343 uint32_t intr_mode;
3344
3345 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
3346 if (pci_enable_device_mem(pdev)) {
3347 printk(KERN_ERR "lpfc: Cannot re-enable "
3348 "PCI device after reset.\n");
3349 return PCI_ERS_RESULT_DISCONNECT;
3350 }
3351
3352 pci_restore_state(pdev);
3353 if (pdev->is_busmaster)
3354 pci_set_master(pdev);
3355
3356 spin_lock_irq(&phba->hbalock);
3357 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
3358 spin_unlock_irq(&phba->hbalock);
3359
3360 /* Configure and enable interrupt */
3361 intr_mode = lpfc_enable_intr(phba, phba->intr_mode);
3362 if (intr_mode == LPFC_INTR_ERROR) {
3363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3364 "0427 Cannot re-enable interrupt after "
3365 "slot reset.\n");
3366 return PCI_ERS_RESULT_DISCONNECT;
3367 } else
3368 phba->intr_mode = intr_mode;
3369
3370 /* Take device offline; this will perform cleanup */
3371 lpfc_offline(phba);
3372 lpfc_sli_brdrestart(phba);
3373
3374 /* Log the current active interrupt mode */
3375 lpfc_log_intr_mode(phba, phba->intr_mode);
3376
3377 return PCI_ERS_RESULT_RECOVERED;
3378 }
3379
3380 /**
3381 * lpfc_io_resume - Resume PCI I/O operation
3382 * @pdev: pointer to PCI device
3383 *
3384 * This routine is registered to the PCI subsystem for error handling. It is
3385 * called when kernel error recovery tells the lpfc driver that it is ok to
3386 * resume normal PCI operation after PCI bus error recovery. After this call,
3387 * traffic can start to flow from this device again.
3388 */
3389 static void lpfc_io_resume(struct pci_dev *pdev)
3390 {
3391 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3393
3394 lpfc_online(phba);
3395 }
3396
3397 static struct pci_device_id lpfc_id_table[] = {
3398 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
3399 PCI_ANY_ID, PCI_ANY_ID, },
3400 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
3401 PCI_ANY_ID, PCI_ANY_ID, },
3402 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
3403 PCI_ANY_ID, PCI_ANY_ID, },
3404 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
3405 PCI_ANY_ID, PCI_ANY_ID, },
3406 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
3407 PCI_ANY_ID, PCI_ANY_ID, },
3408 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
3409 PCI_ANY_ID, PCI_ANY_ID, },
3410 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
3411 PCI_ANY_ID, PCI_ANY_ID, },
3412 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
3413 PCI_ANY_ID, PCI_ANY_ID, },
3414 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
3415 PCI_ANY_ID, PCI_ANY_ID, },
3416 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
3417 PCI_ANY_ID, PCI_ANY_ID, },
3418 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
3419 PCI_ANY_ID, PCI_ANY_ID, },
3420 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
3421 PCI_ANY_ID, PCI_ANY_ID, },
3422 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
3423 PCI_ANY_ID, PCI_ANY_ID, },
3424 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
3425 PCI_ANY_ID, PCI_ANY_ID, },
3426 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
3427 PCI_ANY_ID, PCI_ANY_ID, },
3428 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
3429 PCI_ANY_ID, PCI_ANY_ID, },
3430 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
3431 PCI_ANY_ID, PCI_ANY_ID, },
3432 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
3433 PCI_ANY_ID, PCI_ANY_ID, },
3434 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
3435 PCI_ANY_ID, PCI_ANY_ID, },
3436 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
3437 PCI_ANY_ID, PCI_ANY_ID, },
3438 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
3439 PCI_ANY_ID, PCI_ANY_ID, },
3440 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
3441 PCI_ANY_ID, PCI_ANY_ID, },
3442 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
3443 PCI_ANY_ID, PCI_ANY_ID, },
3444 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
3445 PCI_ANY_ID, PCI_ANY_ID, },
3446 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
3447 PCI_ANY_ID, PCI_ANY_ID, },
3448 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
3449 PCI_ANY_ID, PCI_ANY_ID, },
3450 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
3451 PCI_ANY_ID, PCI_ANY_ID, },
3452 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
3453 PCI_ANY_ID, PCI_ANY_ID, },
3454 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
3455 PCI_ANY_ID, PCI_ANY_ID, },
3456 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
3457 PCI_ANY_ID, PCI_ANY_ID, },
3458 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
3459 PCI_ANY_ID, PCI_ANY_ID, },
3460 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
3461 PCI_ANY_ID, PCI_ANY_ID, },
3462 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
3463 PCI_ANY_ID, PCI_ANY_ID, },
3464 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
3465 PCI_ANY_ID, PCI_ANY_ID, },
3466 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
3467 PCI_ANY_ID, PCI_ANY_ID, },
3468 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
3469 PCI_ANY_ID, PCI_ANY_ID, },
3470 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
3471 PCI_ANY_ID, PCI_ANY_ID, },
3472 { 0 }
3473 };
3474
3475 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
3476
3477 static struct pci_error_handlers lpfc_err_handler = {
3478 .error_detected = lpfc_io_error_detected,
3479 .slot_reset = lpfc_io_slot_reset,
3480 .resume = lpfc_io_resume,
3481 };
3482
3483 static struct pci_driver lpfc_driver = {
3484 .name = LPFC_DRIVER_NAME,
3485 .id_table = lpfc_id_table,
3486 .probe = lpfc_pci_probe_one,
3487 .remove = __devexit_p(lpfc_pci_remove_one),
3488 .suspend = lpfc_pci_suspend_one,
3489 .resume = lpfc_pci_resume_one,
3490 .err_handler = &lpfc_err_handler,
3491 };
3492
3493 /**
3494 * lpfc_init - lpfc module initialization routine
3495 *
3496 * This routine is to be invoked when the lpfc module is loaded into the
3497 * kernel. The special kernel macro module_init() is used to indicate the
3498 * role of this routine to the kernel as lpfc module entry point.
3499 *
3500 * Return codes
3501 * 0 - successful
3502 * -ENOMEM - FC attach transport failed
3503 * all others - failed
3504 */
3505 static int __init
3506 lpfc_init(void)
3507 {
3508 int error = 0;
3509
3510 printk(LPFC_MODULE_DESC "\n");
3511 printk(LPFC_COPYRIGHT "\n");
3512
3513 if (lpfc_enable_npiv) {
3514 lpfc_transport_functions.vport_create = lpfc_vport_create;
3515 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
3516 }
3517 lpfc_transport_template =
3518 fc_attach_transport(&lpfc_transport_functions);
3519 if (lpfc_transport_template == NULL)
3520 return -ENOMEM;
3521 if (lpfc_enable_npiv) {
3522 lpfc_vport_transport_template =
3523 fc_attach_transport(&lpfc_vport_transport_functions);
3524 if (lpfc_vport_transport_template == NULL) {
3525 fc_release_transport(lpfc_transport_template);
3526 return -ENOMEM;
3527 }
3528 }
3529 error = pci_register_driver(&lpfc_driver);
3530 if (error) {
3531 fc_release_transport(lpfc_transport_template);
3532 if (lpfc_enable_npiv)
3533 fc_release_transport(lpfc_vport_transport_template);
3534 }
3535
3536 return error;
3537 }
3538
3539 /**
3540 * lpfc_exit - lpfc module removal routine
3541 *
3542 * This routine is invoked when the lpfc module is removed from the kernel.
3543 * The special kernel macro module_exit() is used to indicate the role of
3544 * this routine to the kernel as lpfc module exit point.
3545 */
3546 static void __exit
3547 lpfc_exit(void)
3548 {
3549 pci_unregister_driver(&lpfc_driver);
3550 fc_release_transport(lpfc_transport_template);
3551 if (lpfc_enable_npiv)
3552 fc_release_transport(lpfc_vport_transport_template);
3553 if (_dump_buf_data) {
3554 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data "
3555 "at 0x%p\n",
3556 (1L << _dump_buf_data_order), _dump_buf_data);
3557 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
3558 }
3559
3560 if (_dump_buf_dif) {
3561 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif "
3562 "at 0x%p\n",
3563 (1L << _dump_buf_dif_order), _dump_buf_dif);
3564 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
3565 }
3566 }
3567
3568 module_init(lpfc_init);
3569 module_exit(lpfc_exit);
3570 MODULE_LICENSE("GPL");
3571 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
3572 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
3573 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Support for the Chinese Samsung S3C2440 based development boards