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[SCSI] lpfc 8.3.27: Fix queue allocation failure recovery
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / lpfc / lpfc_init.c
blob907c94b9245dc0989ae6184506a449543e4ccef0
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 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 #include <linux/aer.h>
32 #include <linux/slab.h>
33 #include <linux/firmware.h>
34
35 #include <scsi/scsi.h>
36 #include <scsi/scsi_device.h>
37 #include <scsi/scsi_host.h>
38 #include <scsi/scsi_transport_fc.h>
39
40 #include "lpfc_hw4.h"
41 #include "lpfc_hw.h"
42 #include "lpfc_sli.h"
43 #include "lpfc_sli4.h"
44 #include "lpfc_nl.h"
45 #include "lpfc_disc.h"
46 #include "lpfc_scsi.h"
47 #include "lpfc.h"
48 #include "lpfc_logmsg.h"
49 #include "lpfc_crtn.h"
50 #include "lpfc_vport.h"
51 #include "lpfc_version.h"
52
53 char *_dump_buf_data;
54 unsigned long _dump_buf_data_order;
55 char *_dump_buf_dif;
56 unsigned long _dump_buf_dif_order;
57 spinlock_t _dump_buf_lock;
58
59 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
60 static int lpfc_post_rcv_buf(struct lpfc_hba *);
61 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
63 static int lpfc_setup_endian_order(struct lpfc_hba *);
64 static int lpfc_sli4_read_config(struct lpfc_hba *);
65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
66 static void lpfc_free_sgl_list(struct lpfc_hba *);
67 static int lpfc_init_sgl_list(struct lpfc_hba *);
68 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
69 static void lpfc_free_active_sgl(struct lpfc_hba *);
70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
75
76 static struct scsi_transport_template *lpfc_transport_template = NULL;
77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
78 static DEFINE_IDR(lpfc_hba_index);
79
80 /**
81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
82 * @phba: pointer to lpfc hba data structure.
83 *
84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
85 * mailbox command. It retrieves the revision information from the HBA and
86 * collects the Vital Product Data (VPD) about the HBA for preparing the
87 * configuration of the HBA.
88 *
89 * Return codes:
90 * 0 - success.
91 * -ERESTART - requests the SLI layer to reset the HBA and try again.
92 * Any other value - indicates an error.
93 **/
94 int
95 lpfc_config_port_prep(struct lpfc_hba *phba)
96 {
97 lpfc_vpd_t *vp = &phba->vpd;
98 int i = 0, rc;
99 LPFC_MBOXQ_t *pmb;
100 MAILBOX_t *mb;
101 char *lpfc_vpd_data = NULL;
102 uint16_t offset = 0;
103 static char licensed[56] =
104 "key unlock for use with gnu public licensed code only\0";
105 static int init_key = 1;
106
107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
108 if (!pmb) {
109 phba->link_state = LPFC_HBA_ERROR;
110 return -ENOMEM;
111 }
112
113 mb = &pmb->u.mb;
114 phba->link_state = LPFC_INIT_MBX_CMDS;
115
116 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
117 if (init_key) {
118 uint32_t *ptext = (uint32_t *) licensed;
119
120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
121 *ptext = cpu_to_be32(*ptext);
122 init_key = 0;
123 }
124
125 lpfc_read_nv(phba, pmb);
126 memset((char*)mb->un.varRDnvp.rsvd3, 0,
127 sizeof (mb->un.varRDnvp.rsvd3));
128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
129 sizeof (licensed));
130
131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
132
133 if (rc != MBX_SUCCESS) {
134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
135 "0324 Config Port initialization "
136 "error, mbxCmd x%x READ_NVPARM, "
137 "mbxStatus x%x\n",
138 mb->mbxCommand, mb->mbxStatus);
139 mempool_free(pmb, phba->mbox_mem_pool);
140 return -ERESTART;
141 }
142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
143 sizeof(phba->wwnn));
144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
145 sizeof(phba->wwpn));
146 }
147
148 phba->sli3_options = 0x0;
149
150 /* Setup and issue mailbox READ REV command */
151 lpfc_read_rev(phba, pmb);
152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
153 if (rc != MBX_SUCCESS) {
154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
155 "0439 Adapter failed to init, mbxCmd x%x "
156 "READ_REV, mbxStatus x%x\n",
157 mb->mbxCommand, mb->mbxStatus);
158 mempool_free( pmb, phba->mbox_mem_pool);
159 return -ERESTART;
160 }
161
162
163 /*
164 * The value of rr must be 1 since the driver set the cv field to 1.
165 * This setting requires the FW to set all revision fields.
166 */
167 if (mb->un.varRdRev.rr == 0) {
168 vp->rev.rBit = 0;
169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
170 "0440 Adapter failed to init, READ_REV has "
171 "missing revision information.\n");
172 mempool_free(pmb, phba->mbox_mem_pool);
173 return -ERESTART;
174 }
175
176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
177 mempool_free(pmb, phba->mbox_mem_pool);
178 return -EINVAL;
179 }
180
181 /* Save information as VPD data */
182 vp->rev.rBit = 1;
183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
188 vp->rev.biuRev = mb->un.varRdRev.biuRev;
189 vp->rev.smRev = mb->un.varRdRev.smRev;
190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
191 vp->rev.endecRev = mb->un.varRdRev.endecRev;
192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
198
199 /* If the sli feature level is less then 9, we must
200 * tear down all RPIs and VPIs on link down if NPIV
201 * is enabled.
202 */
203 if (vp->rev.feaLevelHigh < 9)
204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
205
206 if (lpfc_is_LC_HBA(phba->pcidev->device))
207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
208 sizeof (phba->RandomData));
209
210 /* Get adapter VPD information */
211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
212 if (!lpfc_vpd_data)
213 goto out_free_mbox;
214 do {
215 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
216 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
217
218 if (rc != MBX_SUCCESS) {
219 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
220 "0441 VPD not present on adapter, "
221 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
222 mb->mbxCommand, mb->mbxStatus);
223 mb->un.varDmp.word_cnt = 0;
224 }
225 /* dump mem may return a zero when finished or we got a
226 * mailbox error, either way we are done.
227 */
228 if (mb->un.varDmp.word_cnt == 0)
229 break;
230 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
231 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
232 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
233 lpfc_vpd_data + offset,
234 mb->un.varDmp.word_cnt);
235 offset += mb->un.varDmp.word_cnt;
236 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
237 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
238
239 kfree(lpfc_vpd_data);
240 out_free_mbox:
241 mempool_free(pmb, phba->mbox_mem_pool);
242 return 0;
243 }
244
245 /**
246 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
247 * @phba: pointer to lpfc hba data structure.
248 * @pmboxq: pointer to the driver internal queue element for mailbox command.
249 *
250 * This is the completion handler for driver's configuring asynchronous event
251 * mailbox command to the device. If the mailbox command returns successfully,
252 * it will set internal async event support flag to 1; otherwise, it will
253 * set internal async event support flag to 0.
254 **/
255 static void
256 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
257 {
258 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
259 phba->temp_sensor_support = 1;
260 else
261 phba->temp_sensor_support = 0;
262 mempool_free(pmboxq, phba->mbox_mem_pool);
263 return;
264 }
265
266 /**
267 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
268 * @phba: pointer to lpfc hba data structure.
269 * @pmboxq: pointer to the driver internal queue element for mailbox command.
270 *
271 * This is the completion handler for dump mailbox command for getting
272 * wake up parameters. When this command complete, the response contain
273 * Option rom version of the HBA. This function translate the version number
274 * into a human readable string and store it in OptionROMVersion.
275 **/
276 static void
277 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
278 {
279 struct prog_id *prg;
280 uint32_t prog_id_word;
281 char dist = ' ';
282 /* character array used for decoding dist type. */
283 char dist_char[] = "nabx";
284
285 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
286 mempool_free(pmboxq, phba->mbox_mem_pool);
287 return;
288 }
289
290 prg = (struct prog_id *) &prog_id_word;
291
292 /* word 7 contain option rom version */
293 prog_id_word = pmboxq->u.mb.un.varWords[7];
294
295 /* Decode the Option rom version word to a readable string */
296 if (prg->dist < 4)
297 dist = dist_char[prg->dist];
298
299 if ((prg->dist == 3) && (prg->num == 0))
300 sprintf(phba->OptionROMVersion, "%d.%d%d",
301 prg->ver, prg->rev, prg->lev);
302 else
303 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
304 prg->ver, prg->rev, prg->lev,
305 dist, prg->num);
306 mempool_free(pmboxq, phba->mbox_mem_pool);
307 return;
308 }
309
310 /**
311 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
312 * cfg_soft_wwnn, cfg_soft_wwpn
313 * @vport: pointer to lpfc vport data structure.
314 *
315 *
316 * Return codes
317 * None.
318 **/
319 void
320 lpfc_update_vport_wwn(struct lpfc_vport *vport)
321 {
322 /* If the soft name exists then update it using the service params */
323 if (vport->phba->cfg_soft_wwnn)
324 u64_to_wwn(vport->phba->cfg_soft_wwnn,
325 vport->fc_sparam.nodeName.u.wwn);
326 if (vport->phba->cfg_soft_wwpn)
327 u64_to_wwn(vport->phba->cfg_soft_wwpn,
328 vport->fc_sparam.portName.u.wwn);
329
330 /*
331 * If the name is empty or there exists a soft name
332 * then copy the service params name, otherwise use the fc name
333 */
334 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
335 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
336 sizeof(struct lpfc_name));
337 else
338 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
339 sizeof(struct lpfc_name));
340
341 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
342 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
343 sizeof(struct lpfc_name));
344 else
345 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
346 sizeof(struct lpfc_name));
347 }
348
349 /**
350 * lpfc_config_port_post - Perform lpfc initialization after config port
351 * @phba: pointer to lpfc hba data structure.
352 *
353 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
354 * command call. It performs all internal resource and state setups on the
355 * port: post IOCB buffers, enable appropriate host interrupt attentions,
356 * ELS ring timers, etc.
357 *
358 * Return codes
359 * 0 - success.
360 * Any other value - error.
361 **/
362 int
363 lpfc_config_port_post(struct lpfc_hba *phba)
364 {
365 struct lpfc_vport *vport = phba->pport;
366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
367 LPFC_MBOXQ_t *pmb;
368 MAILBOX_t *mb;
369 struct lpfc_dmabuf *mp;
370 struct lpfc_sli *psli = &phba->sli;
371 uint32_t status, timeout;
372 int i, j;
373 int rc;
374
375 spin_lock_irq(&phba->hbalock);
376 /*
377 * If the Config port completed correctly the HBA is not
378 * over heated any more.
379 */
380 if (phba->over_temp_state == HBA_OVER_TEMP)
381 phba->over_temp_state = HBA_NORMAL_TEMP;
382 spin_unlock_irq(&phba->hbalock);
383
384 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
385 if (!pmb) {
386 phba->link_state = LPFC_HBA_ERROR;
387 return -ENOMEM;
388 }
389 mb = &pmb->u.mb;
390
391 /* Get login parameters for NID. */
392 rc = lpfc_read_sparam(phba, pmb, 0);
393 if (rc) {
394 mempool_free(pmb, phba->mbox_mem_pool);
395 return -ENOMEM;
396 }
397
398 pmb->vport = vport;
399 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
401 "0448 Adapter failed init, mbxCmd x%x "
402 "READ_SPARM mbxStatus x%x\n",
403 mb->mbxCommand, mb->mbxStatus);
404 phba->link_state = LPFC_HBA_ERROR;
405 mp = (struct lpfc_dmabuf *) pmb->context1;
406 mempool_free(pmb, phba->mbox_mem_pool);
407 lpfc_mbuf_free(phba, mp->virt, mp->phys);
408 kfree(mp);
409 return -EIO;
410 }
411
412 mp = (struct lpfc_dmabuf *) pmb->context1;
413
414 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
415 lpfc_mbuf_free(phba, mp->virt, mp->phys);
416 kfree(mp);
417 pmb->context1 = NULL;
418 lpfc_update_vport_wwn(vport);
419
420 /* Update the fc_host data structures with new wwn. */
421 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
422 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
423 fc_host_max_npiv_vports(shost) = phba->max_vpi;
424
425 /* If no serial number in VPD data, use low 6 bytes of WWNN */
426 /* This should be consolidated into parse_vpd ? - mr */
427 if (phba->SerialNumber[0] == 0) {
428 uint8_t *outptr;
429
430 outptr = &vport->fc_nodename.u.s.IEEE[0];
431 for (i = 0; i < 12; i++) {
432 status = *outptr++;
433 j = ((status & 0xf0) >> 4);
434 if (j <= 9)
435 phba->SerialNumber[i] =
436 (char)((uint8_t) 0x30 + (uint8_t) j);
437 else
438 phba->SerialNumber[i] =
439 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
440 i++;
441 j = (status & 0xf);
442 if (j <= 9)
443 phba->SerialNumber[i] =
444 (char)((uint8_t) 0x30 + (uint8_t) j);
445 else
446 phba->SerialNumber[i] =
447 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
448 }
449 }
450
451 lpfc_read_config(phba, pmb);
452 pmb->vport = vport;
453 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
455 "0453 Adapter failed to init, mbxCmd x%x "
456 "READ_CONFIG, mbxStatus x%x\n",
457 mb->mbxCommand, mb->mbxStatus);
458 phba->link_state = LPFC_HBA_ERROR;
459 mempool_free( pmb, phba->mbox_mem_pool);
460 return -EIO;
461 }
462
463 /* Check if the port is disabled */
464 lpfc_sli_read_link_ste(phba);
465
466 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
467 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
468 phba->cfg_hba_queue_depth =
469 (mb->un.varRdConfig.max_xri + 1) -
470 lpfc_sli4_get_els_iocb_cnt(phba);
471
472 phba->lmt = mb->un.varRdConfig.lmt;
473
474 /* Get the default values for Model Name and Description */
475 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
476
477 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
478 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
479 && !(phba->lmt & LMT_1Gb))
480 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
481 && !(phba->lmt & LMT_2Gb))
482 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
483 && !(phba->lmt & LMT_4Gb))
484 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
485 && !(phba->lmt & LMT_8Gb))
486 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
487 && !(phba->lmt & LMT_10Gb))
488 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
489 && !(phba->lmt & LMT_16Gb))) {
490 /* Reset link speed to auto */
491 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
492 "1302 Invalid speed for this board: "
493 "Reset link speed to auto: x%x\n",
494 phba->cfg_link_speed);
495 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
496 }
497
498 phba->link_state = LPFC_LINK_DOWN;
499
500 /* Only process IOCBs on ELS ring till hba_state is READY */
501 if (psli->ring[psli->extra_ring].cmdringaddr)
502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
503 if (psli->ring[psli->fcp_ring].cmdringaddr)
504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
505 if (psli->ring[psli->next_ring].cmdringaddr)
506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
507
508 /* Post receive buffers for desired rings */
509 if (phba->sli_rev != 3)
510 lpfc_post_rcv_buf(phba);
511
512 /*
513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
514 */
515 if (phba->intr_type == MSIX) {
516 rc = lpfc_config_msi(phba, pmb);
517 if (rc) {
518 mempool_free(pmb, phba->mbox_mem_pool);
519 return -EIO;
520 }
521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
522 if (rc != MBX_SUCCESS) {
523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
524 "0352 Config MSI mailbox command "
525 "failed, mbxCmd x%x, mbxStatus x%x\n",
526 pmb->u.mb.mbxCommand,
527 pmb->u.mb.mbxStatus);
528 mempool_free(pmb, phba->mbox_mem_pool);
529 return -EIO;
530 }
531 }
532
533 spin_lock_irq(&phba->hbalock);
534 /* Initialize ERATT handling flag */
535 phba->hba_flag &= ~HBA_ERATT_HANDLED;
536
537 /* Enable appropriate host interrupts */
538 if (lpfc_readl(phba->HCregaddr, &status)) {
539 spin_unlock_irq(&phba->hbalock);
540 return -EIO;
541 }
542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
543 if (psli->num_rings > 0)
544 status |= HC_R0INT_ENA;
545 if (psli->num_rings > 1)
546 status |= HC_R1INT_ENA;
547 if (psli->num_rings > 2)
548 status |= HC_R2INT_ENA;
549 if (psli->num_rings > 3)
550 status |= HC_R3INT_ENA;
551
552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
553 (phba->cfg_poll & DISABLE_FCP_RING_INT))
554 status &= ~(HC_R0INT_ENA);
555
556 writel(status, phba->HCregaddr);
557 readl(phba->HCregaddr); /* flush */
558 spin_unlock_irq(&phba->hbalock);
559
560 /* Set up ring-0 (ELS) timer */
561 timeout = phba->fc_ratov * 2;
562 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
563 /* Set up heart beat (HB) timer */
564 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
565 phba->hb_outstanding = 0;
566 phba->last_completion_time = jiffies;
567 /* Set up error attention (ERATT) polling timer */
568 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
569
570 if (phba->hba_flag & LINK_DISABLED) {
571 lpfc_printf_log(phba,
572 KERN_ERR, LOG_INIT,
573 "2598 Adapter Link is disabled.\n");
574 lpfc_down_link(phba, pmb);
575 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
577 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
578 lpfc_printf_log(phba,
579 KERN_ERR, LOG_INIT,
580 "2599 Adapter failed to issue DOWN_LINK"
581 " mbox command rc 0x%x\n", rc);
582
583 mempool_free(pmb, phba->mbox_mem_pool);
584 return -EIO;
585 }
586 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
587 lpfc_init_link(phba, pmb, phba->cfg_topology,
588 phba->cfg_link_speed);
589 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
590 lpfc_set_loopback_flag(phba);
591 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
592 if (rc != MBX_SUCCESS) {
593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
594 "0454 Adapter failed to init, mbxCmd x%x "
595 "INIT_LINK, mbxStatus x%x\n",
596 mb->mbxCommand, mb->mbxStatus);
597
598 /* Clear all interrupt enable conditions */
599 writel(0, phba->HCregaddr);
600 readl(phba->HCregaddr); /* flush */
601 /* Clear all pending interrupts */
602 writel(0xffffffff, phba->HAregaddr);
603 readl(phba->HAregaddr); /* flush */
604 phba->link_state = LPFC_HBA_ERROR;
605 if (rc != MBX_BUSY)
606 mempool_free(pmb, phba->mbox_mem_pool);
607 return -EIO;
608 }
609 }
610 /* MBOX buffer will be freed in mbox compl */
611 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
612 if (!pmb) {
613 phba->link_state = LPFC_HBA_ERROR;
614 return -ENOMEM;
615 }
616
617 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
618 pmb->mbox_cmpl = lpfc_config_async_cmpl;
619 pmb->vport = phba->pport;
620 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
621
622 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
623 lpfc_printf_log(phba,
624 KERN_ERR,
625 LOG_INIT,
626 "0456 Adapter failed to issue "
627 "ASYNCEVT_ENABLE mbox status x%x\n",
628 rc);
629 mempool_free(pmb, phba->mbox_mem_pool);
630 }
631
632 /* Get Option rom version */
633 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
634 if (!pmb) {
635 phba->link_state = LPFC_HBA_ERROR;
636 return -ENOMEM;
637 }
638
639 lpfc_dump_wakeup_param(phba, pmb);
640 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
641 pmb->vport = phba->pport;
642 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
643
644 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
646 "to get Option ROM version status x%x\n", rc);
647 mempool_free(pmb, phba->mbox_mem_pool);
648 }
649
650 return 0;
651 }
652
653 /**
654 * lpfc_hba_init_link - Initialize the FC link
655 * @phba: pointer to lpfc hba data structure.
656 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
657 *
658 * This routine will issue the INIT_LINK mailbox command call.
659 * It is available to other drivers through the lpfc_hba data
660 * structure for use as a delayed link up mechanism with the
661 * module parameter lpfc_suppress_link_up.
662 *
663 * Return code
664 * 0 - success
665 * Any other value - error
666 **/
667 int
668 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
669 {
670 struct lpfc_vport *vport = phba->pport;
671 LPFC_MBOXQ_t *pmb;
672 MAILBOX_t *mb;
673 int rc;
674
675 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
676 if (!pmb) {
677 phba->link_state = LPFC_HBA_ERROR;
678 return -ENOMEM;
679 }
680 mb = &pmb->u.mb;
681 pmb->vport = vport;
682
683 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
684 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
685 lpfc_set_loopback_flag(phba);
686 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
687 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
689 "0498 Adapter failed to init, mbxCmd x%x "
690 "INIT_LINK, mbxStatus x%x\n",
691 mb->mbxCommand, mb->mbxStatus);
692 if (phba->sli_rev <= LPFC_SLI_REV3) {
693 /* Clear all interrupt enable conditions */
694 writel(0, phba->HCregaddr);
695 readl(phba->HCregaddr); /* flush */
696 /* Clear all pending interrupts */
697 writel(0xffffffff, phba->HAregaddr);
698 readl(phba->HAregaddr); /* flush */
699 }
700 phba->link_state = LPFC_HBA_ERROR;
701 if (rc != MBX_BUSY || flag == MBX_POLL)
702 mempool_free(pmb, phba->mbox_mem_pool);
703 return -EIO;
704 }
705 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
706 if (flag == MBX_POLL)
707 mempool_free(pmb, phba->mbox_mem_pool);
708
709 return 0;
710 }
711
712 /**
713 * lpfc_hba_down_link - this routine downs the FC link
714 * @phba: pointer to lpfc hba data structure.
715 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
716 *
717 * This routine will issue the DOWN_LINK mailbox command call.
718 * It is available to other drivers through the lpfc_hba data
719 * structure for use to stop the link.
720 *
721 * Return code
722 * 0 - success
723 * Any other value - error
724 **/
725 int
726 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
727 {
728 LPFC_MBOXQ_t *pmb;
729 int rc;
730
731 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
732 if (!pmb) {
733 phba->link_state = LPFC_HBA_ERROR;
734 return -ENOMEM;
735 }
736
737 lpfc_printf_log(phba,
738 KERN_ERR, LOG_INIT,
739 "0491 Adapter Link is disabled.\n");
740 lpfc_down_link(phba, pmb);
741 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
742 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
743 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
744 lpfc_printf_log(phba,
745 KERN_ERR, LOG_INIT,
746 "2522 Adapter failed to issue DOWN_LINK"
747 " mbox command rc 0x%x\n", rc);
748
749 mempool_free(pmb, phba->mbox_mem_pool);
750 return -EIO;
751 }
752 if (flag == MBX_POLL)
753 mempool_free(pmb, phba->mbox_mem_pool);
754
755 return 0;
756 }
757
758 /**
759 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
760 * @phba: pointer to lpfc HBA data structure.
761 *
762 * This routine will do LPFC uninitialization before the HBA is reset when
763 * bringing down the SLI Layer.
764 *
765 * Return codes
766 * 0 - success.
767 * Any other value - error.
768 **/
769 int
770 lpfc_hba_down_prep(struct lpfc_hba *phba)
771 {
772 struct lpfc_vport **vports;
773 int i;
774
775 if (phba->sli_rev <= LPFC_SLI_REV3) {
776 /* Disable interrupts */
777 writel(0, phba->HCregaddr);
778 readl(phba->HCregaddr); /* flush */
779 }
780
781 if (phba->pport->load_flag & FC_UNLOADING)
782 lpfc_cleanup_discovery_resources(phba->pport);
783 else {
784 vports = lpfc_create_vport_work_array(phba);
785 if (vports != NULL)
786 for (i = 0; i <= phba->max_vports &&
787 vports[i] != NULL; i++)
788 lpfc_cleanup_discovery_resources(vports[i]);
789 lpfc_destroy_vport_work_array(phba, vports);
790 }
791 return 0;
792 }
793
794 /**
795 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
796 * @phba: pointer to lpfc HBA data structure.
797 *
798 * This routine will do uninitialization after the HBA is reset when bring
799 * down the SLI Layer.
800 *
801 * Return codes
802 * 0 - success.
803 * Any other value - error.
804 **/
805 static int
806 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
807 {
808 struct lpfc_sli *psli = &phba->sli;
809 struct lpfc_sli_ring *pring;
810 struct lpfc_dmabuf *mp, *next_mp;
811 LIST_HEAD(completions);
812 int i;
813
814 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
815 lpfc_sli_hbqbuf_free_all(phba);
816 else {
817 /* Cleanup preposted buffers on the ELS ring */
818 pring = &psli->ring[LPFC_ELS_RING];
819 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
820 list_del(&mp->list);
821 pring->postbufq_cnt--;
822 lpfc_mbuf_free(phba, mp->virt, mp->phys);
823 kfree(mp);
824 }
825 }
826
827 spin_lock_irq(&phba->hbalock);
828 for (i = 0; i < psli->num_rings; i++) {
829 pring = &psli->ring[i];
830
831 /* At this point in time the HBA is either reset or DOA. Either
832 * way, nothing should be on txcmplq as it will NEVER complete.
833 */
834 list_splice_init(&pring->txcmplq, &completions);
835 pring->txcmplq_cnt = 0;
836 spin_unlock_irq(&phba->hbalock);
837
838 /* Cancel all the IOCBs from the completions list */
839 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
840 IOERR_SLI_ABORTED);
841
842 lpfc_sli_abort_iocb_ring(phba, pring);
843 spin_lock_irq(&phba->hbalock);
844 }
845 spin_unlock_irq(&phba->hbalock);
846
847 return 0;
848 }
849
850 /**
851 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
852 * @phba: pointer to lpfc HBA data structure.
853 *
854 * This routine will do uninitialization after the HBA is reset when bring
855 * down the SLI Layer.
856 *
857 * Return codes
858 * 0 - success.
859 * Any other value - error.
860 **/
861 static int
862 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
863 {
864 struct lpfc_scsi_buf *psb, *psb_next;
865 LIST_HEAD(aborts);
866 int ret;
867 unsigned long iflag = 0;
868 struct lpfc_sglq *sglq_entry = NULL;
869
870 ret = lpfc_hba_down_post_s3(phba);
871 if (ret)
872 return ret;
873 /* At this point in time the HBA is either reset or DOA. Either
874 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
875 * on the lpfc_sgl_list so that it can either be freed if the
876 * driver is unloading or reposted if the driver is restarting
877 * the port.
878 */
879 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
880 /* scsl_buf_list */
881 /* abts_sgl_list_lock required because worker thread uses this
882 * list.
883 */
884 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
885 list_for_each_entry(sglq_entry,
886 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
887 sglq_entry->state = SGL_FREED;
888
889 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
890 &phba->sli4_hba.lpfc_sgl_list);
891 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
892 /* abts_scsi_buf_list_lock required because worker thread uses this
893 * list.
894 */
895 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
896 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
897 &aborts);
898 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
899 spin_unlock_irq(&phba->hbalock);
900
901 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
902 psb->pCmd = NULL;
903 psb->status = IOSTAT_SUCCESS;
904 }
905 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
906 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
907 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
908 return 0;
909 }
910
911 /**
912 * lpfc_hba_down_post - Wrapper func for hba down post routine
913 * @phba: pointer to lpfc HBA data structure.
914 *
915 * This routine wraps the actual SLI3 or SLI4 routine for performing
916 * uninitialization after the HBA is reset when bring down the SLI Layer.
917 *
918 * Return codes
919 * 0 - success.
920 * Any other value - error.
921 **/
922 int
923 lpfc_hba_down_post(struct lpfc_hba *phba)
924 {
925 return (*phba->lpfc_hba_down_post)(phba);
926 }
927
928 /**
929 * lpfc_hb_timeout - The HBA-timer timeout handler
930 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
931 *
932 * This is the HBA-timer timeout handler registered to the lpfc driver. When
933 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
934 * work-port-events bitmap and the worker thread is notified. This timeout
935 * event will be used by the worker thread to invoke the actual timeout
936 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
937 * be performed in the timeout handler and the HBA timeout event bit shall
938 * be cleared by the worker thread after it has taken the event bitmap out.
939 **/
940 static void
941 lpfc_hb_timeout(unsigned long ptr)
942 {
943 struct lpfc_hba *phba;
944 uint32_t tmo_posted;
945 unsigned long iflag;
946
947 phba = (struct lpfc_hba *)ptr;
948
949 /* Check for heart beat timeout conditions */
950 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
951 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
952 if (!tmo_posted)
953 phba->pport->work_port_events |= WORKER_HB_TMO;
954 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
955
956 /* Tell the worker thread there is work to do */
957 if (!tmo_posted)
958 lpfc_worker_wake_up(phba);
959 return;
960 }
961
962 /**
963 * lpfc_rrq_timeout - The RRQ-timer timeout handler
964 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
965 *
966 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
967 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
968 * work-port-events bitmap and the worker thread is notified. This timeout
969 * event will be used by the worker thread to invoke the actual timeout
970 * handler routine, lpfc_rrq_handler. Any periodical operations will
971 * be performed in the timeout handler and the RRQ timeout event bit shall
972 * be cleared by the worker thread after it has taken the event bitmap out.
973 **/
974 static void
975 lpfc_rrq_timeout(unsigned long ptr)
976 {
977 struct lpfc_hba *phba;
978 unsigned long iflag;
979
980 phba = (struct lpfc_hba *)ptr;
981 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
982 phba->hba_flag |= HBA_RRQ_ACTIVE;
983 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
984 lpfc_worker_wake_up(phba);
985 }
986
987 /**
988 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
989 * @phba: pointer to lpfc hba data structure.
990 * @pmboxq: pointer to the driver internal queue element for mailbox command.
991 *
992 * This is the callback function to the lpfc heart-beat mailbox command.
993 * If configured, the lpfc driver issues the heart-beat mailbox command to
994 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
995 * heart-beat mailbox command is issued, the driver shall set up heart-beat
996 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
997 * heart-beat outstanding state. Once the mailbox command comes back and
998 * no error conditions detected, the heart-beat mailbox command timer is
999 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1000 * state is cleared for the next heart-beat. If the timer expired with the
1001 * heart-beat outstanding state set, the driver will put the HBA offline.
1002 **/
1003 static void
1004 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1005 {
1006 unsigned long drvr_flag;
1007
1008 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1009 phba->hb_outstanding = 0;
1010 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1011
1012 /* Check and reset heart-beat timer is necessary */
1013 mempool_free(pmboxq, phba->mbox_mem_pool);
1014 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1015 !(phba->link_state == LPFC_HBA_ERROR) &&
1016 !(phba->pport->load_flag & FC_UNLOADING))
1017 mod_timer(&phba->hb_tmofunc,
1018 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1019 return;
1020 }
1021
1022 /**
1023 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1024 * @phba: pointer to lpfc hba data structure.
1025 *
1026 * This is the actual HBA-timer timeout handler to be invoked by the worker
1027 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1028 * handler performs any periodic operations needed for the device. If such
1029 * periodic event has already been attended to either in the interrupt handler
1030 * or by processing slow-ring or fast-ring events within the HBA-timer
1031 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1032 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1033 * is configured and there is no heart-beat mailbox command outstanding, a
1034 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1035 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1036 * to offline.
1037 **/
1038 void
1039 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1040 {
1041 struct lpfc_vport **vports;
1042 LPFC_MBOXQ_t *pmboxq;
1043 struct lpfc_dmabuf *buf_ptr;
1044 int retval, i;
1045 struct lpfc_sli *psli = &phba->sli;
1046 LIST_HEAD(completions);
1047
1048 vports = lpfc_create_vport_work_array(phba);
1049 if (vports != NULL)
1050 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1051 lpfc_rcv_seq_check_edtov(vports[i]);
1052 lpfc_destroy_vport_work_array(phba, vports);
1053
1054 if ((phba->link_state == LPFC_HBA_ERROR) ||
1055 (phba->pport->load_flag & FC_UNLOADING) ||
1056 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1057 return;
1058
1059 spin_lock_irq(&phba->pport->work_port_lock);
1060
1061 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1062 jiffies)) {
1063 spin_unlock_irq(&phba->pport->work_port_lock);
1064 if (!phba->hb_outstanding)
1065 mod_timer(&phba->hb_tmofunc,
1066 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1067 else
1068 mod_timer(&phba->hb_tmofunc,
1069 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1070 return;
1071 }
1072 spin_unlock_irq(&phba->pport->work_port_lock);
1073
1074 if (phba->elsbuf_cnt &&
1075 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1076 spin_lock_irq(&phba->hbalock);
1077 list_splice_init(&phba->elsbuf, &completions);
1078 phba->elsbuf_cnt = 0;
1079 phba->elsbuf_prev_cnt = 0;
1080 spin_unlock_irq(&phba->hbalock);
1081
1082 while (!list_empty(&completions)) {
1083 list_remove_head(&completions, buf_ptr,
1084 struct lpfc_dmabuf, list);
1085 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1086 kfree(buf_ptr);
1087 }
1088 }
1089 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1090
1091 /* If there is no heart beat outstanding, issue a heartbeat command */
1092 if (phba->cfg_enable_hba_heartbeat) {
1093 if (!phba->hb_outstanding) {
1094 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1095 (list_empty(&psli->mboxq))) {
1096 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1097 GFP_KERNEL);
1098 if (!pmboxq) {
1099 mod_timer(&phba->hb_tmofunc,
1100 jiffies +
1101 HZ * LPFC_HB_MBOX_INTERVAL);
1102 return;
1103 }
1104
1105 lpfc_heart_beat(phba, pmboxq);
1106 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1107 pmboxq->vport = phba->pport;
1108 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1109 MBX_NOWAIT);
1110
1111 if (retval != MBX_BUSY &&
1112 retval != MBX_SUCCESS) {
1113 mempool_free(pmboxq,
1114 phba->mbox_mem_pool);
1115 mod_timer(&phba->hb_tmofunc,
1116 jiffies +
1117 HZ * LPFC_HB_MBOX_INTERVAL);
1118 return;
1119 }
1120 phba->skipped_hb = 0;
1121 phba->hb_outstanding = 1;
1122 } else if (time_before_eq(phba->last_completion_time,
1123 phba->skipped_hb)) {
1124 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1125 "2857 Last completion time not "
1126 " updated in %d ms\n",
1127 jiffies_to_msecs(jiffies
1128 - phba->last_completion_time));
1129 } else
1130 phba->skipped_hb = jiffies;
1131
1132 mod_timer(&phba->hb_tmofunc,
1133 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1134 return;
1135 } else {
1136 /*
1137 * If heart beat timeout called with hb_outstanding set
1138 * we need to give the hb mailbox cmd a chance to
1139 * complete or TMO.
1140 */
1141 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1142 "0459 Adapter heartbeat still out"
1143 "standing:last compl time was %d ms.\n",
1144 jiffies_to_msecs(jiffies
1145 - phba->last_completion_time));
1146 mod_timer(&phba->hb_tmofunc,
1147 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1148 }
1149 }
1150 }
1151
1152 /**
1153 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1154 * @phba: pointer to lpfc hba data structure.
1155 *
1156 * This routine is called to bring the HBA offline when HBA hardware error
1157 * other than Port Error 6 has been detected.
1158 **/
1159 static void
1160 lpfc_offline_eratt(struct lpfc_hba *phba)
1161 {
1162 struct lpfc_sli *psli = &phba->sli;
1163
1164 spin_lock_irq(&phba->hbalock);
1165 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1166 spin_unlock_irq(&phba->hbalock);
1167 lpfc_offline_prep(phba);
1168
1169 lpfc_offline(phba);
1170 lpfc_reset_barrier(phba);
1171 spin_lock_irq(&phba->hbalock);
1172 lpfc_sli_brdreset(phba);
1173 spin_unlock_irq(&phba->hbalock);
1174 lpfc_hba_down_post(phba);
1175 lpfc_sli_brdready(phba, HS_MBRDY);
1176 lpfc_unblock_mgmt_io(phba);
1177 phba->link_state = LPFC_HBA_ERROR;
1178 return;
1179 }
1180
1181 /**
1182 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1183 * @phba: pointer to lpfc hba data structure.
1184 *
1185 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1186 * other than Port Error 6 has been detected.
1187 **/
1188 static void
1189 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1190 {
1191 lpfc_offline_prep(phba);
1192 lpfc_offline(phba);
1193 lpfc_sli4_brdreset(phba);
1194 lpfc_hba_down_post(phba);
1195 lpfc_sli4_post_status_check(phba);
1196 lpfc_unblock_mgmt_io(phba);
1197 phba->link_state = LPFC_HBA_ERROR;
1198 }
1199
1200 /**
1201 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1202 * @phba: pointer to lpfc hba data structure.
1203 *
1204 * This routine is invoked to handle the deferred HBA hardware error
1205 * conditions. This type of error is indicated by HBA by setting ER1
1206 * and another ER bit in the host status register. The driver will
1207 * wait until the ER1 bit clears before handling the error condition.
1208 **/
1209 static void
1210 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1211 {
1212 uint32_t old_host_status = phba->work_hs;
1213 struct lpfc_sli_ring *pring;
1214 struct lpfc_sli *psli = &phba->sli;
1215
1216 /* If the pci channel is offline, ignore possible errors,
1217 * since we cannot communicate with the pci card anyway.
1218 */
1219 if (pci_channel_offline(phba->pcidev)) {
1220 spin_lock_irq(&phba->hbalock);
1221 phba->hba_flag &= ~DEFER_ERATT;
1222 spin_unlock_irq(&phba->hbalock);
1223 return;
1224 }
1225
1226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1227 "0479 Deferred Adapter Hardware Error "
1228 "Data: x%x x%x x%x\n",
1229 phba->work_hs,
1230 phba->work_status[0], phba->work_status[1]);
1231
1232 spin_lock_irq(&phba->hbalock);
1233 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1234 spin_unlock_irq(&phba->hbalock);
1235
1236
1237 /*
1238 * Firmware stops when it triggred erratt. That could cause the I/Os
1239 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1240 * SCSI layer retry it after re-establishing link.
1241 */
1242 pring = &psli->ring[psli->fcp_ring];
1243 lpfc_sli_abort_iocb_ring(phba, pring);
1244
1245 /*
1246 * There was a firmware error. Take the hba offline and then
1247 * attempt to restart it.
1248 */
1249 lpfc_offline_prep(phba);
1250 lpfc_offline(phba);
1251
1252 /* Wait for the ER1 bit to clear.*/
1253 while (phba->work_hs & HS_FFER1) {
1254 msleep(100);
1255 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1256 phba->work_hs = UNPLUG_ERR ;
1257 break;
1258 }
1259 /* If driver is unloading let the worker thread continue */
1260 if (phba->pport->load_flag & FC_UNLOADING) {
1261 phba->work_hs = 0;
1262 break;
1263 }
1264 }
1265
1266 /*
1267 * This is to ptrotect against a race condition in which
1268 * first write to the host attention register clear the
1269 * host status register.
1270 */
1271 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1272 phba->work_hs = old_host_status & ~HS_FFER1;
1273
1274 spin_lock_irq(&phba->hbalock);
1275 phba->hba_flag &= ~DEFER_ERATT;
1276 spin_unlock_irq(&phba->hbalock);
1277 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1278 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1279 }
1280
1281 static void
1282 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1283 {
1284 struct lpfc_board_event_header board_event;
1285 struct Scsi_Host *shost;
1286
1287 board_event.event_type = FC_REG_BOARD_EVENT;
1288 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1289 shost = lpfc_shost_from_vport(phba->pport);
1290 fc_host_post_vendor_event(shost, fc_get_event_number(),
1291 sizeof(board_event),
1292 (char *) &board_event,
1293 LPFC_NL_VENDOR_ID);
1294 }
1295
1296 /**
1297 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1298 * @phba: pointer to lpfc hba data structure.
1299 *
1300 * This routine is invoked to handle the following HBA hardware error
1301 * conditions:
1302 * 1 - HBA error attention interrupt
1303 * 2 - DMA ring index out of range
1304 * 3 - Mailbox command came back as unknown
1305 **/
1306 static void
1307 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1308 {
1309 struct lpfc_vport *vport = phba->pport;
1310 struct lpfc_sli *psli = &phba->sli;
1311 struct lpfc_sli_ring *pring;
1312 uint32_t event_data;
1313 unsigned long temperature;
1314 struct temp_event temp_event_data;
1315 struct Scsi_Host *shost;
1316
1317 /* If the pci channel is offline, ignore possible errors,
1318 * since we cannot communicate with the pci card anyway.
1319 */
1320 if (pci_channel_offline(phba->pcidev)) {
1321 spin_lock_irq(&phba->hbalock);
1322 phba->hba_flag &= ~DEFER_ERATT;
1323 spin_unlock_irq(&phba->hbalock);
1324 return;
1325 }
1326
1327 /* If resets are disabled then leave the HBA alone and return */
1328 if (!phba->cfg_enable_hba_reset)
1329 return;
1330
1331 /* Send an internal error event to mgmt application */
1332 lpfc_board_errevt_to_mgmt(phba);
1333
1334 if (phba->hba_flag & DEFER_ERATT)
1335 lpfc_handle_deferred_eratt(phba);
1336
1337 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1338 if (phba->work_hs & HS_FFER6)
1339 /* Re-establishing Link */
1340 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1341 "1301 Re-establishing Link "
1342 "Data: x%x x%x x%x\n",
1343 phba->work_hs, phba->work_status[0],
1344 phba->work_status[1]);
1345 if (phba->work_hs & HS_FFER8)
1346 /* Device Zeroization */
1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348 "2861 Host Authentication device "
1349 "zeroization Data:x%x x%x x%x\n",
1350 phba->work_hs, phba->work_status[0],
1351 phba->work_status[1]);
1352
1353 spin_lock_irq(&phba->hbalock);
1354 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1355 spin_unlock_irq(&phba->hbalock);
1356
1357 /*
1358 * Firmware stops when it triggled erratt with HS_FFER6.
1359 * That could cause the I/Os dropped by the firmware.
1360 * Error iocb (I/O) on txcmplq and let the SCSI layer
1361 * retry it after re-establishing link.
1362 */
1363 pring = &psli->ring[psli->fcp_ring];
1364 lpfc_sli_abort_iocb_ring(phba, pring);
1365
1366 /*
1367 * There was a firmware error. Take the hba offline and then
1368 * attempt to restart it.
1369 */
1370 lpfc_offline_prep(phba);
1371 lpfc_offline(phba);
1372 lpfc_sli_brdrestart(phba);
1373 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1374 lpfc_unblock_mgmt_io(phba);
1375 return;
1376 }
1377 lpfc_unblock_mgmt_io(phba);
1378 } else if (phba->work_hs & HS_CRIT_TEMP) {
1379 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1380 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1381 temp_event_data.event_code = LPFC_CRIT_TEMP;
1382 temp_event_data.data = (uint32_t)temperature;
1383
1384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1385 "0406 Adapter maximum temperature exceeded "
1386 "(%ld), taking this port offline "
1387 "Data: x%x x%x x%x\n",
1388 temperature, phba->work_hs,
1389 phba->work_status[0], phba->work_status[1]);
1390
1391 shost = lpfc_shost_from_vport(phba->pport);
1392 fc_host_post_vendor_event(shost, fc_get_event_number(),
1393 sizeof(temp_event_data),
1394 (char *) &temp_event_data,
1395 SCSI_NL_VID_TYPE_PCI
1396 | PCI_VENDOR_ID_EMULEX);
1397
1398 spin_lock_irq(&phba->hbalock);
1399 phba->over_temp_state = HBA_OVER_TEMP;
1400 spin_unlock_irq(&phba->hbalock);
1401 lpfc_offline_eratt(phba);
1402
1403 } else {
1404 /* The if clause above forces this code path when the status
1405 * failure is a value other than FFER6. Do not call the offline
1406 * twice. This is the adapter hardware error path.
1407 */
1408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1409 "0457 Adapter Hardware Error "
1410 "Data: x%x x%x x%x\n",
1411 phba->work_hs,
1412 phba->work_status[0], phba->work_status[1]);
1413
1414 event_data = FC_REG_DUMP_EVENT;
1415 shost = lpfc_shost_from_vport(vport);
1416 fc_host_post_vendor_event(shost, fc_get_event_number(),
1417 sizeof(event_data), (char *) &event_data,
1418 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1419
1420 lpfc_offline_eratt(phba);
1421 }
1422 return;
1423 }
1424
1425 /**
1426 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1427 * @phba: pointer to lpfc hba data structure.
1428 *
1429 * This routine is invoked to handle the SLI4 HBA hardware error attention
1430 * conditions.
1431 **/
1432 static void
1433 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1434 {
1435 struct lpfc_vport *vport = phba->pport;
1436 uint32_t event_data;
1437 struct Scsi_Host *shost;
1438 uint32_t if_type;
1439 struct lpfc_register portstat_reg;
1440 int rc;
1441
1442 /* If the pci channel is offline, ignore possible errors, since
1443 * we cannot communicate with the pci card anyway.
1444 */
1445 if (pci_channel_offline(phba->pcidev))
1446 return;
1447 /* If resets are disabled then leave the HBA alone and return */
1448 if (!phba->cfg_enable_hba_reset)
1449 return;
1450
1451 /* Send an internal error event to mgmt application */
1452 lpfc_board_errevt_to_mgmt(phba);
1453
1454 /* For now, the actual action for SLI4 device handling is not
1455 * specified yet, just treated it as adaptor hardware failure
1456 */
1457 event_data = FC_REG_DUMP_EVENT;
1458 shost = lpfc_shost_from_vport(vport);
1459 fc_host_post_vendor_event(shost, fc_get_event_number(),
1460 sizeof(event_data), (char *) &event_data,
1461 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1462
1463 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1464 switch (if_type) {
1465 case LPFC_SLI_INTF_IF_TYPE_0:
1466 lpfc_sli4_offline_eratt(phba);
1467 break;
1468 case LPFC_SLI_INTF_IF_TYPE_2:
1469 portstat_reg.word0 =
1470 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1471
1472 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1473 /* TODO: Register for Overtemp async events. */
1474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1475 "2889 Port Overtemperature event, "
1476 "taking port\n");
1477 spin_lock_irq(&phba->hbalock);
1478 phba->over_temp_state = HBA_OVER_TEMP;
1479 spin_unlock_irq(&phba->hbalock);
1480 lpfc_sli4_offline_eratt(phba);
1481 return;
1482 }
1483 /*
1484 * On error status condition, driver need to wait for port
1485 * ready before performing reset.
1486 */
1487 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1488 if (!rc) {
1489 /* need reset: attempt for port recovery */
1490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1491 "2887 Port Error: Attempting "
1492 "Port Recovery\n");
1493 lpfc_offline_prep(phba);
1494 lpfc_offline(phba);
1495 lpfc_sli_brdrestart(phba);
1496 if (lpfc_online(phba) == 0) {
1497 lpfc_unblock_mgmt_io(phba);
1498 return;
1499 }
1500 /* fall through for not able to recover */
1501 }
1502 lpfc_sli4_offline_eratt(phba);
1503 break;
1504 case LPFC_SLI_INTF_IF_TYPE_1:
1505 default:
1506 break;
1507 }
1508 }
1509
1510 /**
1511 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1512 * @phba: pointer to lpfc HBA data structure.
1513 *
1514 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1515 * routine from the API jump table function pointer from the lpfc_hba struct.
1516 *
1517 * Return codes
1518 * 0 - success.
1519 * Any other value - error.
1520 **/
1521 void
1522 lpfc_handle_eratt(struct lpfc_hba *phba)
1523 {
1524 (*phba->lpfc_handle_eratt)(phba);
1525 }
1526
1527 /**
1528 * lpfc_handle_latt - The HBA link event handler
1529 * @phba: pointer to lpfc hba data structure.
1530 *
1531 * This routine is invoked from the worker thread to handle a HBA host
1532 * attention link event.
1533 **/
1534 void
1535 lpfc_handle_latt(struct lpfc_hba *phba)
1536 {
1537 struct lpfc_vport *vport = phba->pport;
1538 struct lpfc_sli *psli = &phba->sli;
1539 LPFC_MBOXQ_t *pmb;
1540 volatile uint32_t control;
1541 struct lpfc_dmabuf *mp;
1542 int rc = 0;
1543
1544 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1545 if (!pmb) {
1546 rc = 1;
1547 goto lpfc_handle_latt_err_exit;
1548 }
1549
1550 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1551 if (!mp) {
1552 rc = 2;
1553 goto lpfc_handle_latt_free_pmb;
1554 }
1555
1556 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1557 if (!mp->virt) {
1558 rc = 3;
1559 goto lpfc_handle_latt_free_mp;
1560 }
1561
1562 /* Cleanup any outstanding ELS commands */
1563 lpfc_els_flush_all_cmd(phba);
1564
1565 psli->slistat.link_event++;
1566 lpfc_read_topology(phba, pmb, mp);
1567 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1568 pmb->vport = vport;
1569 /* Block ELS IOCBs until we have processed this mbox command */
1570 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1571 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1572 if (rc == MBX_NOT_FINISHED) {
1573 rc = 4;
1574 goto lpfc_handle_latt_free_mbuf;
1575 }
1576
1577 /* Clear Link Attention in HA REG */
1578 spin_lock_irq(&phba->hbalock);
1579 writel(HA_LATT, phba->HAregaddr);
1580 readl(phba->HAregaddr); /* flush */
1581 spin_unlock_irq(&phba->hbalock);
1582
1583 return;
1584
1585 lpfc_handle_latt_free_mbuf:
1586 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1587 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1588 lpfc_handle_latt_free_mp:
1589 kfree(mp);
1590 lpfc_handle_latt_free_pmb:
1591 mempool_free(pmb, phba->mbox_mem_pool);
1592 lpfc_handle_latt_err_exit:
1593 /* Enable Link attention interrupts */
1594 spin_lock_irq(&phba->hbalock);
1595 psli->sli_flag |= LPFC_PROCESS_LA;
1596 control = readl(phba->HCregaddr);
1597 control |= HC_LAINT_ENA;
1598 writel(control, phba->HCregaddr);
1599 readl(phba->HCregaddr); /* flush */
1600
1601 /* Clear Link Attention in HA REG */
1602 writel(HA_LATT, phba->HAregaddr);
1603 readl(phba->HAregaddr); /* flush */
1604 spin_unlock_irq(&phba->hbalock);
1605 lpfc_linkdown(phba);
1606 phba->link_state = LPFC_HBA_ERROR;
1607
1608 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1609 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1610
1611 return;
1612 }
1613
1614 /**
1615 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1616 * @phba: pointer to lpfc hba data structure.
1617 * @vpd: pointer to the vital product data.
1618 * @len: length of the vital product data in bytes.
1619 *
1620 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1621 * an array of characters. In this routine, the ModelName, ProgramType, and
1622 * ModelDesc, etc. fields of the phba data structure will be populated.
1623 *
1624 * Return codes
1625 * 0 - pointer to the VPD passed in is NULL
1626 * 1 - success
1627 **/
1628 int
1629 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1630 {
1631 uint8_t lenlo, lenhi;
1632 int Length;
1633 int i, j;
1634 int finished = 0;
1635 int index = 0;
1636
1637 if (!vpd)
1638 return 0;
1639
1640 /* Vital Product */
1641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1642 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1643 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1644 (uint32_t) vpd[3]);
1645 while (!finished && (index < (len - 4))) {
1646 switch (vpd[index]) {
1647 case 0x82:
1648 case 0x91:
1649 index += 1;
1650 lenlo = vpd[index];
1651 index += 1;
1652 lenhi = vpd[index];
1653 index += 1;
1654 i = ((((unsigned short)lenhi) << 8) + lenlo);
1655 index += i;
1656 break;
1657 case 0x90:
1658 index += 1;
1659 lenlo = vpd[index];
1660 index += 1;
1661 lenhi = vpd[index];
1662 index += 1;
1663 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1664 if (Length > len - index)
1665 Length = len - index;
1666 while (Length > 0) {
1667 /* Look for Serial Number */
1668 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1669 index += 2;
1670 i = vpd[index];
1671 index += 1;
1672 j = 0;
1673 Length -= (3+i);
1674 while(i--) {
1675 phba->SerialNumber[j++] = vpd[index++];
1676 if (j == 31)
1677 break;
1678 }
1679 phba->SerialNumber[j] = 0;
1680 continue;
1681 }
1682 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1683 phba->vpd_flag |= VPD_MODEL_DESC;
1684 index += 2;
1685 i = vpd[index];
1686 index += 1;
1687 j = 0;
1688 Length -= (3+i);
1689 while(i--) {
1690 phba->ModelDesc[j++] = vpd[index++];
1691 if (j == 255)
1692 break;
1693 }
1694 phba->ModelDesc[j] = 0;
1695 continue;
1696 }
1697 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1698 phba->vpd_flag |= VPD_MODEL_NAME;
1699 index += 2;
1700 i = vpd[index];
1701 index += 1;
1702 j = 0;
1703 Length -= (3+i);
1704 while(i--) {
1705 phba->ModelName[j++] = vpd[index++];
1706 if (j == 79)
1707 break;
1708 }
1709 phba->ModelName[j] = 0;
1710 continue;
1711 }
1712 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1713 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1714 index += 2;
1715 i = vpd[index];
1716 index += 1;
1717 j = 0;
1718 Length -= (3+i);
1719 while(i--) {
1720 phba->ProgramType[j++] = vpd[index++];
1721 if (j == 255)
1722 break;
1723 }
1724 phba->ProgramType[j] = 0;
1725 continue;
1726 }
1727 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1728 phba->vpd_flag |= VPD_PORT;
1729 index += 2;
1730 i = vpd[index];
1731 index += 1;
1732 j = 0;
1733 Length -= (3+i);
1734 while(i--) {
1735 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1736 (phba->sli4_hba.pport_name_sta ==
1737 LPFC_SLI4_PPNAME_GET)) {
1738 j++;
1739 index++;
1740 } else
1741 phba->Port[j++] = vpd[index++];
1742 if (j == 19)
1743 break;
1744 }
1745 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1746 (phba->sli4_hba.pport_name_sta ==
1747 LPFC_SLI4_PPNAME_NON))
1748 phba->Port[j] = 0;
1749 continue;
1750 }
1751 else {
1752 index += 2;
1753 i = vpd[index];
1754 index += 1;
1755 index += i;
1756 Length -= (3 + i);
1757 }
1758 }
1759 finished = 0;
1760 break;
1761 case 0x78:
1762 finished = 1;
1763 break;
1764 default:
1765 index ++;
1766 break;
1767 }
1768 }
1769
1770 return(1);
1771 }
1772
1773 /**
1774 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1775 * @phba: pointer to lpfc hba data structure.
1776 * @mdp: pointer to the data structure to hold the derived model name.
1777 * @descp: pointer to the data structure to hold the derived description.
1778 *
1779 * This routine retrieves HBA's description based on its registered PCI device
1780 * ID. The @descp passed into this function points to an array of 256 chars. It
1781 * shall be returned with the model name, maximum speed, and the host bus type.
1782 * The @mdp passed into this function points to an array of 80 chars. When the
1783 * function returns, the @mdp will be filled with the model name.
1784 **/
1785 static void
1786 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1787 {
1788 lpfc_vpd_t *vp;
1789 uint16_t dev_id = phba->pcidev->device;
1790 int max_speed;
1791 int GE = 0;
1792 int oneConnect = 0; /* default is not a oneConnect */
1793 struct {
1794 char *name;
1795 char *bus;
1796 char *function;
1797 } m = {"<Unknown>", "", ""};
1798
1799 if (mdp && mdp[0] != '\0'
1800 && descp && descp[0] != '\0')
1801 return;
1802
1803 if (phba->lmt & LMT_16Gb)
1804 max_speed = 16;
1805 else if (phba->lmt & LMT_10Gb)
1806 max_speed = 10;
1807 else if (phba->lmt & LMT_8Gb)
1808 max_speed = 8;
1809 else if (phba->lmt & LMT_4Gb)
1810 max_speed = 4;
1811 else if (phba->lmt & LMT_2Gb)
1812 max_speed = 2;
1813 else
1814 max_speed = 1;
1815
1816 vp = &phba->vpd;
1817
1818 switch (dev_id) {
1819 case PCI_DEVICE_ID_FIREFLY:
1820 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1821 break;
1822 case PCI_DEVICE_ID_SUPERFLY:
1823 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1824 m = (typeof(m)){"LP7000", "PCI",
1825 "Fibre Channel Adapter"};
1826 else
1827 m = (typeof(m)){"LP7000E", "PCI",
1828 "Fibre Channel Adapter"};
1829 break;
1830 case PCI_DEVICE_ID_DRAGONFLY:
1831 m = (typeof(m)){"LP8000", "PCI",
1832 "Fibre Channel Adapter"};
1833 break;
1834 case PCI_DEVICE_ID_CENTAUR:
1835 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1836 m = (typeof(m)){"LP9002", "PCI",
1837 "Fibre Channel Adapter"};
1838 else
1839 m = (typeof(m)){"LP9000", "PCI",
1840 "Fibre Channel Adapter"};
1841 break;
1842 case PCI_DEVICE_ID_RFLY:
1843 m = (typeof(m)){"LP952", "PCI",
1844 "Fibre Channel Adapter"};
1845 break;
1846 case PCI_DEVICE_ID_PEGASUS:
1847 m = (typeof(m)){"LP9802", "PCI-X",
1848 "Fibre Channel Adapter"};
1849 break;
1850 case PCI_DEVICE_ID_THOR:
1851 m = (typeof(m)){"LP10000", "PCI-X",
1852 "Fibre Channel Adapter"};
1853 break;
1854 case PCI_DEVICE_ID_VIPER:
1855 m = (typeof(m)){"LPX1000", "PCI-X",
1856 "Fibre Channel Adapter"};
1857 break;
1858 case PCI_DEVICE_ID_PFLY:
1859 m = (typeof(m)){"LP982", "PCI-X",
1860 "Fibre Channel Adapter"};
1861 break;
1862 case PCI_DEVICE_ID_TFLY:
1863 m = (typeof(m)){"LP1050", "PCI-X",
1864 "Fibre Channel Adapter"};
1865 break;
1866 case PCI_DEVICE_ID_HELIOS:
1867 m = (typeof(m)){"LP11000", "PCI-X2",
1868 "Fibre Channel Adapter"};
1869 break;
1870 case PCI_DEVICE_ID_HELIOS_SCSP:
1871 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1872 "Fibre Channel Adapter"};
1873 break;
1874 case PCI_DEVICE_ID_HELIOS_DCSP:
1875 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1876 "Fibre Channel Adapter"};
1877 break;
1878 case PCI_DEVICE_ID_NEPTUNE:
1879 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1880 break;
1881 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1882 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1883 break;
1884 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1885 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1886 break;
1887 case PCI_DEVICE_ID_BMID:
1888 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1889 break;
1890 case PCI_DEVICE_ID_BSMB:
1891 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1892 break;
1893 case PCI_DEVICE_ID_ZEPHYR:
1894 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1895 break;
1896 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1897 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1898 break;
1899 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1900 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1901 GE = 1;
1902 break;
1903 case PCI_DEVICE_ID_ZMID:
1904 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1905 break;
1906 case PCI_DEVICE_ID_ZSMB:
1907 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1908 break;
1909 case PCI_DEVICE_ID_LP101:
1910 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1911 break;
1912 case PCI_DEVICE_ID_LP10000S:
1913 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1914 break;
1915 case PCI_DEVICE_ID_LP11000S:
1916 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1917 break;
1918 case PCI_DEVICE_ID_LPE11000S:
1919 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1920 break;
1921 case PCI_DEVICE_ID_SAT:
1922 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1923 break;
1924 case PCI_DEVICE_ID_SAT_MID:
1925 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1926 break;
1927 case PCI_DEVICE_ID_SAT_SMB:
1928 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1929 break;
1930 case PCI_DEVICE_ID_SAT_DCSP:
1931 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1932 break;
1933 case PCI_DEVICE_ID_SAT_SCSP:
1934 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1935 break;
1936 case PCI_DEVICE_ID_SAT_S:
1937 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1938 break;
1939 case PCI_DEVICE_ID_HORNET:
1940 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1941 GE = 1;
1942 break;
1943 case PCI_DEVICE_ID_PROTEUS_VF:
1944 m = (typeof(m)){"LPev12000", "PCIe IOV",
1945 "Fibre Channel Adapter"};
1946 break;
1947 case PCI_DEVICE_ID_PROTEUS_PF:
1948 m = (typeof(m)){"LPev12000", "PCIe IOV",
1949 "Fibre Channel Adapter"};
1950 break;
1951 case PCI_DEVICE_ID_PROTEUS_S:
1952 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1953 "Fibre Channel Adapter"};
1954 break;
1955 case PCI_DEVICE_ID_TIGERSHARK:
1956 oneConnect = 1;
1957 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1958 break;
1959 case PCI_DEVICE_ID_TOMCAT:
1960 oneConnect = 1;
1961 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1962 break;
1963 case PCI_DEVICE_ID_FALCON:
1964 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1965 "EmulexSecure Fibre"};
1966 break;
1967 case PCI_DEVICE_ID_BALIUS:
1968 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1969 "Fibre Channel Adapter"};
1970 break;
1971 case PCI_DEVICE_ID_LANCER_FC:
1972 case PCI_DEVICE_ID_LANCER_FC_VF:
1973 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
1974 break;
1975 case PCI_DEVICE_ID_LANCER_FCOE:
1976 case PCI_DEVICE_ID_LANCER_FCOE_VF:
1977 oneConnect = 1;
1978 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
1979 break;
1980 default:
1981 m = (typeof(m)){"Unknown", "", ""};
1982 break;
1983 }
1984
1985 if (mdp && mdp[0] == '\0')
1986 snprintf(mdp, 79,"%s", m.name);
1987 /*
1988 * oneConnect hba requires special processing, they are all initiators
1989 * and we put the port number on the end
1990 */
1991 if (descp && descp[0] == '\0') {
1992 if (oneConnect)
1993 snprintf(descp, 255,
1994 "Emulex OneConnect %s, %s Initiator, Port %s",
1995 m.name, m.function,
1996 phba->Port);
1997 else
1998 snprintf(descp, 255,
1999 "Emulex %s %d%s %s %s",
2000 m.name, max_speed, (GE) ? "GE" : "Gb",
2001 m.bus, m.function);
2002 }
2003 }
2004
2005 /**
2006 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2007 * @phba: pointer to lpfc hba data structure.
2008 * @pring: pointer to a IOCB ring.
2009 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2010 *
2011 * This routine posts a given number of IOCBs with the associated DMA buffer
2012 * descriptors specified by the cnt argument to the given IOCB ring.
2013 *
2014 * Return codes
2015 * The number of IOCBs NOT able to be posted to the IOCB ring.
2016 **/
2017 int
2018 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2019 {
2020 IOCB_t *icmd;
2021 struct lpfc_iocbq *iocb;
2022 struct lpfc_dmabuf *mp1, *mp2;
2023
2024 cnt += pring->missbufcnt;
2025
2026 /* While there are buffers to post */
2027 while (cnt > 0) {
2028 /* Allocate buffer for command iocb */
2029 iocb = lpfc_sli_get_iocbq(phba);
2030 if (iocb == NULL) {
2031 pring->missbufcnt = cnt;
2032 return cnt;
2033 }
2034 icmd = &iocb->iocb;
2035
2036 /* 2 buffers can be posted per command */
2037 /* Allocate buffer to post */
2038 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2039 if (mp1)
2040 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2041 if (!mp1 || !mp1->virt) {
2042 kfree(mp1);
2043 lpfc_sli_release_iocbq(phba, iocb);
2044 pring->missbufcnt = cnt;
2045 return cnt;
2046 }
2047
2048 INIT_LIST_HEAD(&mp1->list);
2049 /* Allocate buffer to post */
2050 if (cnt > 1) {
2051 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2052 if (mp2)
2053 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2054 &mp2->phys);
2055 if (!mp2 || !mp2->virt) {
2056 kfree(mp2);
2057 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2058 kfree(mp1);
2059 lpfc_sli_release_iocbq(phba, iocb);
2060 pring->missbufcnt = cnt;
2061 return cnt;
2062 }
2063
2064 INIT_LIST_HEAD(&mp2->list);
2065 } else {
2066 mp2 = NULL;
2067 }
2068
2069 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2070 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2071 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2072 icmd->ulpBdeCount = 1;
2073 cnt--;
2074 if (mp2) {
2075 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2076 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2077 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2078 cnt--;
2079 icmd->ulpBdeCount = 2;
2080 }
2081
2082 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2083 icmd->ulpLe = 1;
2084
2085 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2086 IOCB_ERROR) {
2087 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2088 kfree(mp1);
2089 cnt++;
2090 if (mp2) {
2091 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2092 kfree(mp2);
2093 cnt++;
2094 }
2095 lpfc_sli_release_iocbq(phba, iocb);
2096 pring->missbufcnt = cnt;
2097 return cnt;
2098 }
2099 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2100 if (mp2)
2101 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2102 }
2103 pring->missbufcnt = 0;
2104 return 0;
2105 }
2106
2107 /**
2108 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2109 * @phba: pointer to lpfc hba data structure.
2110 *
2111 * This routine posts initial receive IOCB buffers to the ELS ring. The
2112 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2113 * set to 64 IOCBs.
2114 *
2115 * Return codes
2116 * 0 - success (currently always success)
2117 **/
2118 static int
2119 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2120 {
2121 struct lpfc_sli *psli = &phba->sli;
2122
2123 /* Ring 0, ELS / CT buffers */
2124 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2125 /* Ring 2 - FCP no buffers needed */
2126
2127 return 0;
2128 }
2129
2130 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2131
2132 /**
2133 * lpfc_sha_init - Set up initial array of hash table entries
2134 * @HashResultPointer: pointer to an array as hash table.
2135 *
2136 * This routine sets up the initial values to the array of hash table entries
2137 * for the LC HBAs.
2138 **/
2139 static void
2140 lpfc_sha_init(uint32_t * HashResultPointer)
2141 {
2142 HashResultPointer[0] = 0x67452301;
2143 HashResultPointer[1] = 0xEFCDAB89;
2144 HashResultPointer[2] = 0x98BADCFE;
2145 HashResultPointer[3] = 0x10325476;
2146 HashResultPointer[4] = 0xC3D2E1F0;
2147 }
2148
2149 /**
2150 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2151 * @HashResultPointer: pointer to an initial/result hash table.
2152 * @HashWorkingPointer: pointer to an working hash table.
2153 *
2154 * This routine iterates an initial hash table pointed by @HashResultPointer
2155 * with the values from the working hash table pointeed by @HashWorkingPointer.
2156 * The results are putting back to the initial hash table, returned through
2157 * the @HashResultPointer as the result hash table.
2158 **/
2159 static void
2160 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2161 {
2162 int t;
2163 uint32_t TEMP;
2164 uint32_t A, B, C, D, E;
2165 t = 16;
2166 do {
2167 HashWorkingPointer[t] =
2168 S(1,
2169 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2170 8] ^
2171 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2172 } while (++t <= 79);
2173 t = 0;
2174 A = HashResultPointer[0];
2175 B = HashResultPointer[1];
2176 C = HashResultPointer[2];
2177 D = HashResultPointer[3];
2178 E = HashResultPointer[4];
2179
2180 do {
2181 if (t < 20) {
2182 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2183 } else if (t < 40) {
2184 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2185 } else if (t < 60) {
2186 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2187 } else {
2188 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2189 }
2190 TEMP += S(5, A) + E + HashWorkingPointer[t];
2191 E = D;
2192 D = C;
2193 C = S(30, B);
2194 B = A;
2195 A = TEMP;
2196 } while (++t <= 79);
2197
2198 HashResultPointer[0] += A;
2199 HashResultPointer[1] += B;
2200 HashResultPointer[2] += C;
2201 HashResultPointer[3] += D;
2202 HashResultPointer[4] += E;
2203
2204 }
2205
2206 /**
2207 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2208 * @RandomChallenge: pointer to the entry of host challenge random number array.
2209 * @HashWorking: pointer to the entry of the working hash array.
2210 *
2211 * This routine calculates the working hash array referred by @HashWorking
2212 * from the challenge random numbers associated with the host, referred by
2213 * @RandomChallenge. The result is put into the entry of the working hash
2214 * array and returned by reference through @HashWorking.
2215 **/
2216 static void
2217 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2218 {
2219 *HashWorking = (*RandomChallenge ^ *HashWorking);
2220 }
2221
2222 /**
2223 * lpfc_hba_init - Perform special handling for LC HBA initialization
2224 * @phba: pointer to lpfc hba data structure.
2225 * @hbainit: pointer to an array of unsigned 32-bit integers.
2226 *
2227 * This routine performs the special handling for LC HBA initialization.
2228 **/
2229 void
2230 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2231 {
2232 int t;
2233 uint32_t *HashWorking;
2234 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2235
2236 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2237 if (!HashWorking)
2238 return;
2239
2240 HashWorking[0] = HashWorking[78] = *pwwnn++;
2241 HashWorking[1] = HashWorking[79] = *pwwnn;
2242
2243 for (t = 0; t < 7; t++)
2244 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2245
2246 lpfc_sha_init(hbainit);
2247 lpfc_sha_iterate(hbainit, HashWorking);
2248 kfree(HashWorking);
2249 }
2250
2251 /**
2252 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2253 * @vport: pointer to a virtual N_Port data structure.
2254 *
2255 * This routine performs the necessary cleanups before deleting the @vport.
2256 * It invokes the discovery state machine to perform necessary state
2257 * transitions and to release the ndlps associated with the @vport. Note,
2258 * the physical port is treated as @vport 0.
2259 **/
2260 void
2261 lpfc_cleanup(struct lpfc_vport *vport)
2262 {
2263 struct lpfc_hba *phba = vport->phba;
2264 struct lpfc_nodelist *ndlp, *next_ndlp;
2265 int i = 0;
2266
2267 if (phba->link_state > LPFC_LINK_DOWN)
2268 lpfc_port_link_failure(vport);
2269
2270 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2271 if (!NLP_CHK_NODE_ACT(ndlp)) {
2272 ndlp = lpfc_enable_node(vport, ndlp,
2273 NLP_STE_UNUSED_NODE);
2274 if (!ndlp)
2275 continue;
2276 spin_lock_irq(&phba->ndlp_lock);
2277 NLP_SET_FREE_REQ(ndlp);
2278 spin_unlock_irq(&phba->ndlp_lock);
2279 /* Trigger the release of the ndlp memory */
2280 lpfc_nlp_put(ndlp);
2281 continue;
2282 }
2283 spin_lock_irq(&phba->ndlp_lock);
2284 if (NLP_CHK_FREE_REQ(ndlp)) {
2285 /* The ndlp should not be in memory free mode already */
2286 spin_unlock_irq(&phba->ndlp_lock);
2287 continue;
2288 } else
2289 /* Indicate request for freeing ndlp memory */
2290 NLP_SET_FREE_REQ(ndlp);
2291 spin_unlock_irq(&phba->ndlp_lock);
2292
2293 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2294 ndlp->nlp_DID == Fabric_DID) {
2295 /* Just free up ndlp with Fabric_DID for vports */
2296 lpfc_nlp_put(ndlp);
2297 continue;
2298 }
2299
2300 if (ndlp->nlp_type & NLP_FABRIC)
2301 lpfc_disc_state_machine(vport, ndlp, NULL,
2302 NLP_EVT_DEVICE_RECOVERY);
2303
2304 lpfc_disc_state_machine(vport, ndlp, NULL,
2305 NLP_EVT_DEVICE_RM);
2306
2307 }
2308
2309 /* At this point, ALL ndlp's should be gone
2310 * because of the previous NLP_EVT_DEVICE_RM.
2311 * Lets wait for this to happen, if needed.
2312 */
2313 while (!list_empty(&vport->fc_nodes)) {
2314 if (i++ > 3000) {
2315 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2316 "0233 Nodelist not empty\n");
2317 list_for_each_entry_safe(ndlp, next_ndlp,
2318 &vport->fc_nodes, nlp_listp) {
2319 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2320 LOG_NODE,
2321 "0282 did:x%x ndlp:x%p "
2322 "usgmap:x%x refcnt:%d\n",
2323 ndlp->nlp_DID, (void *)ndlp,
2324 ndlp->nlp_usg_map,
2325 atomic_read(
2326 &ndlp->kref.refcount));
2327 }
2328 break;
2329 }
2330
2331 /* Wait for any activity on ndlps to settle */
2332 msleep(10);
2333 }
2334 lpfc_cleanup_vports_rrqs(vport, NULL);
2335 }
2336
2337 /**
2338 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2339 * @vport: pointer to a virtual N_Port data structure.
2340 *
2341 * This routine stops all the timers associated with a @vport. This function
2342 * is invoked before disabling or deleting a @vport. Note that the physical
2343 * port is treated as @vport 0.
2344 **/
2345 void
2346 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2347 {
2348 del_timer_sync(&vport->els_tmofunc);
2349 del_timer_sync(&vport->fc_fdmitmo);
2350 del_timer_sync(&vport->delayed_disc_tmo);
2351 lpfc_can_disctmo(vport);
2352 return;
2353 }
2354
2355 /**
2356 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2357 * @phba: pointer to lpfc hba data structure.
2358 *
2359 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2360 * caller of this routine should already hold the host lock.
2361 **/
2362 void
2363 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2364 {
2365 /* Clear pending FCF rediscovery wait flag */
2366 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2367
2368 /* Now, try to stop the timer */
2369 del_timer(&phba->fcf.redisc_wait);
2370 }
2371
2372 /**
2373 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2374 * @phba: pointer to lpfc hba data structure.
2375 *
2376 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2377 * checks whether the FCF rediscovery wait timer is pending with the host
2378 * lock held before proceeding with disabling the timer and clearing the
2379 * wait timer pendig flag.
2380 **/
2381 void
2382 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2383 {
2384 spin_lock_irq(&phba->hbalock);
2385 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2386 /* FCF rediscovery timer already fired or stopped */
2387 spin_unlock_irq(&phba->hbalock);
2388 return;
2389 }
2390 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2391 /* Clear failover in progress flags */
2392 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2393 spin_unlock_irq(&phba->hbalock);
2394 }
2395
2396 /**
2397 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2398 * @phba: pointer to lpfc hba data structure.
2399 *
2400 * This routine stops all the timers associated with a HBA. This function is
2401 * invoked before either putting a HBA offline or unloading the driver.
2402 **/
2403 void
2404 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2405 {
2406 lpfc_stop_vport_timers(phba->pport);
2407 del_timer_sync(&phba->sli.mbox_tmo);
2408 del_timer_sync(&phba->fabric_block_timer);
2409 del_timer_sync(&phba->eratt_poll);
2410 del_timer_sync(&phba->hb_tmofunc);
2411 if (phba->sli_rev == LPFC_SLI_REV4) {
2412 del_timer_sync(&phba->rrq_tmr);
2413 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2414 }
2415 phba->hb_outstanding = 0;
2416
2417 switch (phba->pci_dev_grp) {
2418 case LPFC_PCI_DEV_LP:
2419 /* Stop any LightPulse device specific driver timers */
2420 del_timer_sync(&phba->fcp_poll_timer);
2421 break;
2422 case LPFC_PCI_DEV_OC:
2423 /* Stop any OneConnect device sepcific driver timers */
2424 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2425 break;
2426 default:
2427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2428 "0297 Invalid device group (x%x)\n",
2429 phba->pci_dev_grp);
2430 break;
2431 }
2432 return;
2433 }
2434
2435 /**
2436 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2437 * @phba: pointer to lpfc hba data structure.
2438 *
2439 * This routine marks a HBA's management interface as blocked. Once the HBA's
2440 * management interface is marked as blocked, all the user space access to
2441 * the HBA, whether they are from sysfs interface or libdfc interface will
2442 * all be blocked. The HBA is set to block the management interface when the
2443 * driver prepares the HBA interface for online or offline.
2444 **/
2445 static void
2446 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2447 {
2448 unsigned long iflag;
2449 uint8_t actcmd = MBX_HEARTBEAT;
2450 unsigned long timeout;
2451
2452 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2453 spin_lock_irqsave(&phba->hbalock, iflag);
2454 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2455 if (phba->sli.mbox_active) {
2456 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2457 /* Determine how long we might wait for the active mailbox
2458 * command to be gracefully completed by firmware.
2459 */
2460 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2461 phba->sli.mbox_active) * 1000) + jiffies;
2462 }
2463 spin_unlock_irqrestore(&phba->hbalock, iflag);
2464
2465 /* Wait for the outstnading mailbox command to complete */
2466 while (phba->sli.mbox_active) {
2467 /* Check active mailbox complete status every 2ms */
2468 msleep(2);
2469 if (time_after(jiffies, timeout)) {
2470 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2471 "2813 Mgmt IO is Blocked %x "
2472 "- mbox cmd %x still active\n",
2473 phba->sli.sli_flag, actcmd);
2474 break;
2475 }
2476 }
2477 }
2478
2479 /**
2480 * lpfc_online - Initialize and bring a HBA online
2481 * @phba: pointer to lpfc hba data structure.
2482 *
2483 * This routine initializes the HBA and brings a HBA online. During this
2484 * process, the management interface is blocked to prevent user space access
2485 * to the HBA interfering with the driver initialization.
2486 *
2487 * Return codes
2488 * 0 - successful
2489 * 1 - failed
2490 **/
2491 int
2492 lpfc_online(struct lpfc_hba *phba)
2493 {
2494 struct lpfc_vport *vport;
2495 struct lpfc_vport **vports;
2496 int i;
2497
2498 if (!phba)
2499 return 0;
2500 vport = phba->pport;
2501
2502 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2503 return 0;
2504
2505 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2506 "0458 Bring Adapter online\n");
2507
2508 lpfc_block_mgmt_io(phba);
2509
2510 if (!lpfc_sli_queue_setup(phba)) {
2511 lpfc_unblock_mgmt_io(phba);
2512 return 1;
2513 }
2514
2515 if (phba->sli_rev == LPFC_SLI_REV4) {
2516 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2517 lpfc_unblock_mgmt_io(phba);
2518 return 1;
2519 }
2520 } else {
2521 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2522 lpfc_unblock_mgmt_io(phba);
2523 return 1;
2524 }
2525 }
2526
2527 vports = lpfc_create_vport_work_array(phba);
2528 if (vports != NULL)
2529 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2530 struct Scsi_Host *shost;
2531 shost = lpfc_shost_from_vport(vports[i]);
2532 spin_lock_irq(shost->host_lock);
2533 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2534 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2535 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2536 if (phba->sli_rev == LPFC_SLI_REV4)
2537 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2538 spin_unlock_irq(shost->host_lock);
2539 }
2540 lpfc_destroy_vport_work_array(phba, vports);
2541
2542 lpfc_unblock_mgmt_io(phba);
2543 return 0;
2544 }
2545
2546 /**
2547 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2548 * @phba: pointer to lpfc hba data structure.
2549 *
2550 * This routine marks a HBA's management interface as not blocked. Once the
2551 * HBA's management interface is marked as not blocked, all the user space
2552 * access to the HBA, whether they are from sysfs interface or libdfc
2553 * interface will be allowed. The HBA is set to block the management interface
2554 * when the driver prepares the HBA interface for online or offline and then
2555 * set to unblock the management interface afterwards.
2556 **/
2557 void
2558 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2559 {
2560 unsigned long iflag;
2561
2562 spin_lock_irqsave(&phba->hbalock, iflag);
2563 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2564 spin_unlock_irqrestore(&phba->hbalock, iflag);
2565 }
2566
2567 /**
2568 * lpfc_offline_prep - Prepare a HBA to be brought offline
2569 * @phba: pointer to lpfc hba data structure.
2570 *
2571 * This routine is invoked to prepare a HBA to be brought offline. It performs
2572 * unregistration login to all the nodes on all vports and flushes the mailbox
2573 * queue to make it ready to be brought offline.
2574 **/
2575 void
2576 lpfc_offline_prep(struct lpfc_hba * phba)
2577 {
2578 struct lpfc_vport *vport = phba->pport;
2579 struct lpfc_nodelist *ndlp, *next_ndlp;
2580 struct lpfc_vport **vports;
2581 struct Scsi_Host *shost;
2582 int i;
2583
2584 if (vport->fc_flag & FC_OFFLINE_MODE)
2585 return;
2586
2587 lpfc_block_mgmt_io(phba);
2588
2589 lpfc_linkdown(phba);
2590
2591 /* Issue an unreg_login to all nodes on all vports */
2592 vports = lpfc_create_vport_work_array(phba);
2593 if (vports != NULL) {
2594 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2595 if (vports[i]->load_flag & FC_UNLOADING)
2596 continue;
2597 shost = lpfc_shost_from_vport(vports[i]);
2598 spin_lock_irq(shost->host_lock);
2599 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2600 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2601 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2602 spin_unlock_irq(shost->host_lock);
2603
2604 shost = lpfc_shost_from_vport(vports[i]);
2605 list_for_each_entry_safe(ndlp, next_ndlp,
2606 &vports[i]->fc_nodes,
2607 nlp_listp) {
2608 if (!NLP_CHK_NODE_ACT(ndlp))
2609 continue;
2610 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2611 continue;
2612 if (ndlp->nlp_type & NLP_FABRIC) {
2613 lpfc_disc_state_machine(vports[i], ndlp,
2614 NULL, NLP_EVT_DEVICE_RECOVERY);
2615 lpfc_disc_state_machine(vports[i], ndlp,
2616 NULL, NLP_EVT_DEVICE_RM);
2617 }
2618 spin_lock_irq(shost->host_lock);
2619 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2620 spin_unlock_irq(shost->host_lock);
2621 lpfc_unreg_rpi(vports[i], ndlp);
2622 }
2623 }
2624 }
2625 lpfc_destroy_vport_work_array(phba, vports);
2626
2627 lpfc_sli_mbox_sys_shutdown(phba);
2628 }
2629
2630 /**
2631 * lpfc_offline - Bring a HBA offline
2632 * @phba: pointer to lpfc hba data structure.
2633 *
2634 * This routine actually brings a HBA offline. It stops all the timers
2635 * associated with the HBA, brings down the SLI layer, and eventually
2636 * marks the HBA as in offline state for the upper layer protocol.
2637 **/
2638 void
2639 lpfc_offline(struct lpfc_hba *phba)
2640 {
2641 struct Scsi_Host *shost;
2642 struct lpfc_vport **vports;
2643 int i;
2644
2645 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2646 return;
2647
2648 /* stop port and all timers associated with this hba */
2649 lpfc_stop_port(phba);
2650 vports = lpfc_create_vport_work_array(phba);
2651 if (vports != NULL)
2652 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2653 lpfc_stop_vport_timers(vports[i]);
2654 lpfc_destroy_vport_work_array(phba, vports);
2655 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2656 "0460 Bring Adapter offline\n");
2657 /* Bring down the SLI Layer and cleanup. The HBA is offline
2658 now. */
2659 lpfc_sli_hba_down(phba);
2660 spin_lock_irq(&phba->hbalock);
2661 phba->work_ha = 0;
2662 spin_unlock_irq(&phba->hbalock);
2663 vports = lpfc_create_vport_work_array(phba);
2664 if (vports != NULL)
2665 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2666 shost = lpfc_shost_from_vport(vports[i]);
2667 spin_lock_irq(shost->host_lock);
2668 vports[i]->work_port_events = 0;
2669 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2670 spin_unlock_irq(shost->host_lock);
2671 }
2672 lpfc_destroy_vport_work_array(phba, vports);
2673 }
2674
2675 /**
2676 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2677 * @phba: pointer to lpfc hba data structure.
2678 *
2679 * This routine is to free all the SCSI buffers and IOCBs from the driver
2680 * list back to kernel. It is called from lpfc_pci_remove_one to free
2681 * the internal resources before the device is removed from the system.
2682 *
2683 * Return codes
2684 * 0 - successful (for now, it always returns 0)
2685 **/
2686 static int
2687 lpfc_scsi_free(struct lpfc_hba *phba)
2688 {
2689 struct lpfc_scsi_buf *sb, *sb_next;
2690 struct lpfc_iocbq *io, *io_next;
2691
2692 spin_lock_irq(&phba->hbalock);
2693 /* Release all the lpfc_scsi_bufs maintained by this host. */
2694 spin_lock(&phba->scsi_buf_list_lock);
2695 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2696 list_del(&sb->list);
2697 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2698 sb->dma_handle);
2699 kfree(sb);
2700 phba->total_scsi_bufs--;
2701 }
2702 spin_unlock(&phba->scsi_buf_list_lock);
2703
2704 /* Release all the lpfc_iocbq entries maintained by this host. */
2705 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2706 list_del(&io->list);
2707 kfree(io);
2708 phba->total_iocbq_bufs--;
2709 }
2710
2711 spin_unlock_irq(&phba->hbalock);
2712 return 0;
2713 }
2714
2715 /**
2716 * lpfc_create_port - Create an FC port
2717 * @phba: pointer to lpfc hba data structure.
2718 * @instance: a unique integer ID to this FC port.
2719 * @dev: pointer to the device data structure.
2720 *
2721 * This routine creates a FC port for the upper layer protocol. The FC port
2722 * can be created on top of either a physical port or a virtual port provided
2723 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2724 * and associates the FC port created before adding the shost into the SCSI
2725 * layer.
2726 *
2727 * Return codes
2728 * @vport - pointer to the virtual N_Port data structure.
2729 * NULL - port create failed.
2730 **/
2731 struct lpfc_vport *
2732 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2733 {
2734 struct lpfc_vport *vport;
2735 struct Scsi_Host *shost;
2736 int error = 0;
2737
2738 if (dev != &phba->pcidev->dev)
2739 shost = scsi_host_alloc(&lpfc_vport_template,
2740 sizeof(struct lpfc_vport));
2741 else
2742 shost = scsi_host_alloc(&lpfc_template,
2743 sizeof(struct lpfc_vport));
2744 if (!shost)
2745 goto out;
2746
2747 vport = (struct lpfc_vport *) shost->hostdata;
2748 vport->phba = phba;
2749 vport->load_flag |= FC_LOADING;
2750 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2751 vport->fc_rscn_flush = 0;
2752
2753 lpfc_get_vport_cfgparam(vport);
2754 shost->unique_id = instance;
2755 shost->max_id = LPFC_MAX_TARGET;
2756 shost->max_lun = vport->cfg_max_luns;
2757 shost->this_id = -1;
2758 shost->max_cmd_len = 16;
2759 if (phba->sli_rev == LPFC_SLI_REV4) {
2760 shost->dma_boundary =
2761 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2762 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2763 }
2764
2765 /*
2766 * Set initial can_queue value since 0 is no longer supported and
2767 * scsi_add_host will fail. This will be adjusted later based on the
2768 * max xri value determined in hba setup.
2769 */
2770 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2771 if (dev != &phba->pcidev->dev) {
2772 shost->transportt = lpfc_vport_transport_template;
2773 vport->port_type = LPFC_NPIV_PORT;
2774 } else {
2775 shost->transportt = lpfc_transport_template;
2776 vport->port_type = LPFC_PHYSICAL_PORT;
2777 }
2778
2779 /* Initialize all internally managed lists. */
2780 INIT_LIST_HEAD(&vport->fc_nodes);
2781 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2782 spin_lock_init(&vport->work_port_lock);
2783
2784 init_timer(&vport->fc_disctmo);
2785 vport->fc_disctmo.function = lpfc_disc_timeout;
2786 vport->fc_disctmo.data = (unsigned long)vport;
2787
2788 init_timer(&vport->fc_fdmitmo);
2789 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2790 vport->fc_fdmitmo.data = (unsigned long)vport;
2791
2792 init_timer(&vport->els_tmofunc);
2793 vport->els_tmofunc.function = lpfc_els_timeout;
2794 vport->els_tmofunc.data = (unsigned long)vport;
2795
2796 init_timer(&vport->delayed_disc_tmo);
2797 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2798 vport->delayed_disc_tmo.data = (unsigned long)vport;
2799
2800 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2801 if (error)
2802 goto out_put_shost;
2803
2804 spin_lock_irq(&phba->hbalock);
2805 list_add_tail(&vport->listentry, &phba->port_list);
2806 spin_unlock_irq(&phba->hbalock);
2807 return vport;
2808
2809 out_put_shost:
2810 scsi_host_put(shost);
2811 out:
2812 return NULL;
2813 }
2814
2815 /**
2816 * destroy_port - destroy an FC port
2817 * @vport: pointer to an lpfc virtual N_Port data structure.
2818 *
2819 * This routine destroys a FC port from the upper layer protocol. All the
2820 * resources associated with the port are released.
2821 **/
2822 void
2823 destroy_port(struct lpfc_vport *vport)
2824 {
2825 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2826 struct lpfc_hba *phba = vport->phba;
2827
2828 lpfc_debugfs_terminate(vport);
2829 fc_remove_host(shost);
2830 scsi_remove_host(shost);
2831
2832 spin_lock_irq(&phba->hbalock);
2833 list_del_init(&vport->listentry);
2834 spin_unlock_irq(&phba->hbalock);
2835
2836 lpfc_cleanup(vport);
2837 return;
2838 }
2839
2840 /**
2841 * lpfc_get_instance - Get a unique integer ID
2842 *
2843 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2844 * uses the kernel idr facility to perform the task.
2845 *
2846 * Return codes:
2847 * instance - a unique integer ID allocated as the new instance.
2848 * -1 - lpfc get instance failed.
2849 **/
2850 int
2851 lpfc_get_instance(void)
2852 {
2853 int instance = 0;
2854
2855 /* Assign an unused number */
2856 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2857 return -1;
2858 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2859 return -1;
2860 return instance;
2861 }
2862
2863 /**
2864 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2865 * @shost: pointer to SCSI host data structure.
2866 * @time: elapsed time of the scan in jiffies.
2867 *
2868 * This routine is called by the SCSI layer with a SCSI host to determine
2869 * whether the scan host is finished.
2870 *
2871 * Note: there is no scan_start function as adapter initialization will have
2872 * asynchronously kicked off the link initialization.
2873 *
2874 * Return codes
2875 * 0 - SCSI host scan is not over yet.
2876 * 1 - SCSI host scan is over.
2877 **/
2878 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2879 {
2880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2881 struct lpfc_hba *phba = vport->phba;
2882 int stat = 0;
2883
2884 spin_lock_irq(shost->host_lock);
2885
2886 if (vport->load_flag & FC_UNLOADING) {
2887 stat = 1;
2888 goto finished;
2889 }
2890 if (time >= 30 * HZ) {
2891 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2892 "0461 Scanning longer than 30 "
2893 "seconds. Continuing initialization\n");
2894 stat = 1;
2895 goto finished;
2896 }
2897 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2899 "0465 Link down longer than 15 "
2900 "seconds. Continuing initialization\n");
2901 stat = 1;
2902 goto finished;
2903 }
2904
2905 if (vport->port_state != LPFC_VPORT_READY)
2906 goto finished;
2907 if (vport->num_disc_nodes || vport->fc_prli_sent)
2908 goto finished;
2909 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2910 goto finished;
2911 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2912 goto finished;
2913
2914 stat = 1;
2915
2916 finished:
2917 spin_unlock_irq(shost->host_lock);
2918 return stat;
2919 }
2920
2921 /**
2922 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2923 * @shost: pointer to SCSI host data structure.
2924 *
2925 * This routine initializes a given SCSI host attributes on a FC port. The
2926 * SCSI host can be either on top of a physical port or a virtual port.
2927 **/
2928 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2929 {
2930 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2931 struct lpfc_hba *phba = vport->phba;
2932 /*
2933 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2934 */
2935
2936 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2937 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2938 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2939
2940 memset(fc_host_supported_fc4s(shost), 0,
2941 sizeof(fc_host_supported_fc4s(shost)));
2942 fc_host_supported_fc4s(shost)[2] = 1;
2943 fc_host_supported_fc4s(shost)[7] = 1;
2944
2945 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2946 sizeof fc_host_symbolic_name(shost));
2947
2948 fc_host_supported_speeds(shost) = 0;
2949 if (phba->lmt & LMT_16Gb)
2950 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
2951 if (phba->lmt & LMT_10Gb)
2952 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2953 if (phba->lmt & LMT_8Gb)
2954 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2955 if (phba->lmt & LMT_4Gb)
2956 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2957 if (phba->lmt & LMT_2Gb)
2958 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2959 if (phba->lmt & LMT_1Gb)
2960 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2961
2962 fc_host_maxframe_size(shost) =
2963 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2964 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2965
2966 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2967
2968 /* This value is also unchanging */
2969 memset(fc_host_active_fc4s(shost), 0,
2970 sizeof(fc_host_active_fc4s(shost)));
2971 fc_host_active_fc4s(shost)[2] = 1;
2972 fc_host_active_fc4s(shost)[7] = 1;
2973
2974 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2975 spin_lock_irq(shost->host_lock);
2976 vport->load_flag &= ~FC_LOADING;
2977 spin_unlock_irq(shost->host_lock);
2978 }
2979
2980 /**
2981 * lpfc_stop_port_s3 - Stop SLI3 device port
2982 * @phba: pointer to lpfc hba data structure.
2983 *
2984 * This routine is invoked to stop an SLI3 device port, it stops the device
2985 * from generating interrupts and stops the device driver's timers for the
2986 * device.
2987 **/
2988 static void
2989 lpfc_stop_port_s3(struct lpfc_hba *phba)
2990 {
2991 /* Clear all interrupt enable conditions */
2992 writel(0, phba->HCregaddr);
2993 readl(phba->HCregaddr); /* flush */
2994 /* Clear all pending interrupts */
2995 writel(0xffffffff, phba->HAregaddr);
2996 readl(phba->HAregaddr); /* flush */
2997
2998 /* Reset some HBA SLI setup states */
2999 lpfc_stop_hba_timers(phba);
3000 phba->pport->work_port_events = 0;
3001 }
3002
3003 /**
3004 * lpfc_stop_port_s4 - Stop SLI4 device port
3005 * @phba: pointer to lpfc hba data structure.
3006 *
3007 * This routine is invoked to stop an SLI4 device port, it stops the device
3008 * from generating interrupts and stops the device driver's timers for the
3009 * device.
3010 **/
3011 static void
3012 lpfc_stop_port_s4(struct lpfc_hba *phba)
3013 {
3014 /* Reset some HBA SLI4 setup states */
3015 lpfc_stop_hba_timers(phba);
3016 phba->pport->work_port_events = 0;
3017 phba->sli4_hba.intr_enable = 0;
3018 }
3019
3020 /**
3021 * lpfc_stop_port - Wrapper function for stopping hba port
3022 * @phba: Pointer to HBA context object.
3023 *
3024 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3025 * the API jump table function pointer from the lpfc_hba struct.
3026 **/
3027 void
3028 lpfc_stop_port(struct lpfc_hba *phba)
3029 {
3030 phba->lpfc_stop_port(phba);
3031 }
3032
3033 /**
3034 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3035 * @phba: Pointer to hba for which this call is being executed.
3036 *
3037 * This routine starts the timer waiting for the FCF rediscovery to complete.
3038 **/
3039 void
3040 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3041 {
3042 unsigned long fcf_redisc_wait_tmo =
3043 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3044 /* Start fcf rediscovery wait period timer */
3045 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3046 spin_lock_irq(&phba->hbalock);
3047 /* Allow action to new fcf asynchronous event */
3048 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3049 /* Mark the FCF rediscovery pending state */
3050 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3051 spin_unlock_irq(&phba->hbalock);
3052 }
3053
3054 /**
3055 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3056 * @ptr: Map to lpfc_hba data structure pointer.
3057 *
3058 * This routine is invoked when waiting for FCF table rediscover has been
3059 * timed out. If new FCF record(s) has (have) been discovered during the
3060 * wait period, a new FCF event shall be added to the FCOE async event
3061 * list, and then worker thread shall be waked up for processing from the
3062 * worker thread context.
3063 **/
3064 void
3065 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3066 {
3067 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3068
3069 /* Don't send FCF rediscovery event if timer cancelled */
3070 spin_lock_irq(&phba->hbalock);
3071 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3072 spin_unlock_irq(&phba->hbalock);
3073 return;
3074 }
3075 /* Clear FCF rediscovery timer pending flag */
3076 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3077 /* FCF rediscovery event to worker thread */
3078 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3079 spin_unlock_irq(&phba->hbalock);
3080 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3081 "2776 FCF rediscover quiescent timer expired\n");
3082 /* wake up worker thread */
3083 lpfc_worker_wake_up(phba);
3084 }
3085
3086 /**
3087 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3088 * @phba: pointer to lpfc hba data structure.
3089 * @acqe_link: pointer to the async link completion queue entry.
3090 *
3091 * This routine is to parse the SLI4 link-attention link fault code and
3092 * translate it into the base driver's read link attention mailbox command
3093 * status.
3094 *
3095 * Return: Link-attention status in terms of base driver's coding.
3096 **/
3097 static uint16_t
3098 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3099 struct lpfc_acqe_link *acqe_link)
3100 {
3101 uint16_t latt_fault;
3102
3103 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3104 case LPFC_ASYNC_LINK_FAULT_NONE:
3105 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3106 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3107 latt_fault = 0;
3108 break;
3109 default:
3110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3111 "0398 Invalid link fault code: x%x\n",
3112 bf_get(lpfc_acqe_link_fault, acqe_link));
3113 latt_fault = MBXERR_ERROR;
3114 break;
3115 }
3116 return latt_fault;
3117 }
3118
3119 /**
3120 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3121 * @phba: pointer to lpfc hba data structure.
3122 * @acqe_link: pointer to the async link completion queue entry.
3123 *
3124 * This routine is to parse the SLI4 link attention type and translate it
3125 * into the base driver's link attention type coding.
3126 *
3127 * Return: Link attention type in terms of base driver's coding.
3128 **/
3129 static uint8_t
3130 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3131 struct lpfc_acqe_link *acqe_link)
3132 {
3133 uint8_t att_type;
3134
3135 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3136 case LPFC_ASYNC_LINK_STATUS_DOWN:
3137 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3138 att_type = LPFC_ATT_LINK_DOWN;
3139 break;
3140 case LPFC_ASYNC_LINK_STATUS_UP:
3141 /* Ignore physical link up events - wait for logical link up */
3142 att_type = LPFC_ATT_RESERVED;
3143 break;
3144 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3145 att_type = LPFC_ATT_LINK_UP;
3146 break;
3147 default:
3148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3149 "0399 Invalid link attention type: x%x\n",
3150 bf_get(lpfc_acqe_link_status, acqe_link));
3151 att_type = LPFC_ATT_RESERVED;
3152 break;
3153 }
3154 return att_type;
3155 }
3156
3157 /**
3158 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3159 * @phba: pointer to lpfc hba data structure.
3160 * @acqe_link: pointer to the async link completion queue entry.
3161 *
3162 * This routine is to parse the SLI4 link-attention link speed and translate
3163 * it into the base driver's link-attention link speed coding.
3164 *
3165 * Return: Link-attention link speed in terms of base driver's coding.
3166 **/
3167 static uint8_t
3168 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3169 struct lpfc_acqe_link *acqe_link)
3170 {
3171 uint8_t link_speed;
3172
3173 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3174 case LPFC_ASYNC_LINK_SPEED_ZERO:
3175 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3176 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3177 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3178 break;
3179 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3180 link_speed = LPFC_LINK_SPEED_1GHZ;
3181 break;
3182 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3183 link_speed = LPFC_LINK_SPEED_10GHZ;
3184 break;
3185 default:
3186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3187 "0483 Invalid link-attention link speed: x%x\n",
3188 bf_get(lpfc_acqe_link_speed, acqe_link));
3189 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3190 break;
3191 }
3192 return link_speed;
3193 }
3194
3195 /**
3196 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3197 * @phba: pointer to lpfc hba data structure.
3198 * @acqe_link: pointer to the async link completion queue entry.
3199 *
3200 * This routine is to handle the SLI4 asynchronous FCoE link event.
3201 **/
3202 static void
3203 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3204 struct lpfc_acqe_link *acqe_link)
3205 {
3206 struct lpfc_dmabuf *mp;
3207 LPFC_MBOXQ_t *pmb;
3208 MAILBOX_t *mb;
3209 struct lpfc_mbx_read_top *la;
3210 uint8_t att_type;
3211 int rc;
3212
3213 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3214 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3215 return;
3216 phba->fcoe_eventtag = acqe_link->event_tag;
3217 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3218 if (!pmb) {
3219 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3220 "0395 The mboxq allocation failed\n");
3221 return;
3222 }
3223 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3224 if (!mp) {
3225 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3226 "0396 The lpfc_dmabuf allocation failed\n");
3227 goto out_free_pmb;
3228 }
3229 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3230 if (!mp->virt) {
3231 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3232 "0397 The mbuf allocation failed\n");
3233 goto out_free_dmabuf;
3234 }
3235
3236 /* Cleanup any outstanding ELS commands */
3237 lpfc_els_flush_all_cmd(phba);
3238
3239 /* Block ELS IOCBs until we have done process link event */
3240 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3241
3242 /* Update link event statistics */
3243 phba->sli.slistat.link_event++;
3244
3245 /* Create lpfc_handle_latt mailbox command from link ACQE */
3246 lpfc_read_topology(phba, pmb, mp);
3247 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3248 pmb->vport = phba->pport;
3249
3250 /* Keep the link status for extra SLI4 state machine reference */
3251 phba->sli4_hba.link_state.speed =
3252 bf_get(lpfc_acqe_link_speed, acqe_link);
3253 phba->sli4_hba.link_state.duplex =
3254 bf_get(lpfc_acqe_link_duplex, acqe_link);
3255 phba->sli4_hba.link_state.status =
3256 bf_get(lpfc_acqe_link_status, acqe_link);
3257 phba->sli4_hba.link_state.type =
3258 bf_get(lpfc_acqe_link_type, acqe_link);
3259 phba->sli4_hba.link_state.number =
3260 bf_get(lpfc_acqe_link_number, acqe_link);
3261 phba->sli4_hba.link_state.fault =
3262 bf_get(lpfc_acqe_link_fault, acqe_link);
3263 phba->sli4_hba.link_state.logical_speed =
3264 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3265 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3266 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3267 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3268 "Logical speed:%dMbps Fault:%d\n",
3269 phba->sli4_hba.link_state.speed,
3270 phba->sli4_hba.link_state.topology,
3271 phba->sli4_hba.link_state.status,
3272 phba->sli4_hba.link_state.type,
3273 phba->sli4_hba.link_state.number,
3274 phba->sli4_hba.link_state.logical_speed * 10,
3275 phba->sli4_hba.link_state.fault);
3276 /*
3277 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3278 * topology info. Note: Optional for non FC-AL ports.
3279 */
3280 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3281 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3282 if (rc == MBX_NOT_FINISHED)
3283 goto out_free_dmabuf;
3284 return;
3285 }
3286 /*
3287 * For FCoE Mode: fill in all the topology information we need and call
3288 * the READ_TOPOLOGY completion routine to continue without actually
3289 * sending the READ_TOPOLOGY mailbox command to the port.
3290 */
3291 /* Parse and translate status field */
3292 mb = &pmb->u.mb;
3293 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3294
3295 /* Parse and translate link attention fields */
3296 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3297 la->eventTag = acqe_link->event_tag;
3298 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3299 bf_set(lpfc_mbx_read_top_link_spd, la,
3300 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3301
3302 /* Fake the the following irrelvant fields */
3303 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3304 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3305 bf_set(lpfc_mbx_read_top_il, la, 0);
3306 bf_set(lpfc_mbx_read_top_pb, la, 0);
3307 bf_set(lpfc_mbx_read_top_fa, la, 0);
3308 bf_set(lpfc_mbx_read_top_mm, la, 0);
3309
3310 /* Invoke the lpfc_handle_latt mailbox command callback function */
3311 lpfc_mbx_cmpl_read_topology(phba, pmb);
3312
3313 return;
3314
3315 out_free_dmabuf:
3316 kfree(mp);
3317 out_free_pmb:
3318 mempool_free(pmb, phba->mbox_mem_pool);
3319 }
3320
3321 /**
3322 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3323 * @phba: pointer to lpfc hba data structure.
3324 * @acqe_fc: pointer to the async fc completion queue entry.
3325 *
3326 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3327 * that the event was received and then issue a read_topology mailbox command so
3328 * that the rest of the driver will treat it the same as SLI3.
3329 **/
3330 static void
3331 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3332 {
3333 struct lpfc_dmabuf *mp;
3334 LPFC_MBOXQ_t *pmb;
3335 int rc;
3336
3337 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3338 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3339 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3340 "2895 Non FC link Event detected.(%d)\n",
3341 bf_get(lpfc_trailer_type, acqe_fc));
3342 return;
3343 }
3344 /* Keep the link status for extra SLI4 state machine reference */
3345 phba->sli4_hba.link_state.speed =
3346 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3347 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3348 phba->sli4_hba.link_state.topology =
3349 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3350 phba->sli4_hba.link_state.status =
3351 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3352 phba->sli4_hba.link_state.type =
3353 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3354 phba->sli4_hba.link_state.number =
3355 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3356 phba->sli4_hba.link_state.fault =
3357 bf_get(lpfc_acqe_link_fault, acqe_fc);
3358 phba->sli4_hba.link_state.logical_speed =
3359 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3360 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3361 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3362 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3363 "%dMbps Fault:%d\n",
3364 phba->sli4_hba.link_state.speed,
3365 phba->sli4_hba.link_state.topology,
3366 phba->sli4_hba.link_state.status,
3367 phba->sli4_hba.link_state.type,
3368 phba->sli4_hba.link_state.number,
3369 phba->sli4_hba.link_state.logical_speed * 10,
3370 phba->sli4_hba.link_state.fault);
3371 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3372 if (!pmb) {
3373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3374 "2897 The mboxq allocation failed\n");
3375 return;
3376 }
3377 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3378 if (!mp) {
3379 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3380 "2898 The lpfc_dmabuf allocation failed\n");
3381 goto out_free_pmb;
3382 }
3383 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3384 if (!mp->virt) {
3385 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3386 "2899 The mbuf allocation failed\n");
3387 goto out_free_dmabuf;
3388 }
3389
3390 /* Cleanup any outstanding ELS commands */
3391 lpfc_els_flush_all_cmd(phba);
3392
3393 /* Block ELS IOCBs until we have done process link event */
3394 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3395
3396 /* Update link event statistics */
3397 phba->sli.slistat.link_event++;
3398
3399 /* Create lpfc_handle_latt mailbox command from link ACQE */
3400 lpfc_read_topology(phba, pmb, mp);
3401 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3402 pmb->vport = phba->pport;
3403
3404 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3405 if (rc == MBX_NOT_FINISHED)
3406 goto out_free_dmabuf;
3407 return;
3408
3409 out_free_dmabuf:
3410 kfree(mp);
3411 out_free_pmb:
3412 mempool_free(pmb, phba->mbox_mem_pool);
3413 }
3414
3415 /**
3416 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3417 * @phba: pointer to lpfc hba data structure.
3418 * @acqe_fc: pointer to the async SLI completion queue entry.
3419 *
3420 * This routine is to handle the SLI4 asynchronous SLI events.
3421 **/
3422 static void
3423 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3424 {
3425 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3426 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3427 "x%08x SLI Event Type:%d",
3428 acqe_sli->event_data1, acqe_sli->event_data2,
3429 bf_get(lpfc_trailer_type, acqe_sli));
3430 return;
3431 }
3432
3433 /**
3434 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3435 * @vport: pointer to vport data structure.
3436 *
3437 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3438 * response to a CVL event.
3439 *
3440 * Return the pointer to the ndlp with the vport if successful, otherwise
3441 * return NULL.
3442 **/
3443 static struct lpfc_nodelist *
3444 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3445 {
3446 struct lpfc_nodelist *ndlp;
3447 struct Scsi_Host *shost;
3448 struct lpfc_hba *phba;
3449
3450 if (!vport)
3451 return NULL;
3452 phba = vport->phba;
3453 if (!phba)
3454 return NULL;
3455 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3456 if (!ndlp) {
3457 /* Cannot find existing Fabric ndlp, so allocate a new one */
3458 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3459 if (!ndlp)
3460 return 0;
3461 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3462 /* Set the node type */
3463 ndlp->nlp_type |= NLP_FABRIC;
3464 /* Put ndlp onto node list */
3465 lpfc_enqueue_node(vport, ndlp);
3466 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3467 /* re-setup ndlp without removing from node list */
3468 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3469 if (!ndlp)
3470 return 0;
3471 }
3472 if ((phba->pport->port_state < LPFC_FLOGI) &&
3473 (phba->pport->port_state != LPFC_VPORT_FAILED))
3474 return NULL;
3475 /* If virtual link is not yet instantiated ignore CVL */
3476 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3477 && (vport->port_state != LPFC_VPORT_FAILED))
3478 return NULL;
3479 shost = lpfc_shost_from_vport(vport);
3480 if (!shost)
3481 return NULL;
3482 lpfc_linkdown_port(vport);
3483 lpfc_cleanup_pending_mbox(vport);
3484 spin_lock_irq(shost->host_lock);
3485 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3486 spin_unlock_irq(shost->host_lock);
3487
3488 return ndlp;
3489 }
3490
3491 /**
3492 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3493 * @vport: pointer to lpfc hba data structure.
3494 *
3495 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3496 * response to a FCF dead event.
3497 **/
3498 static void
3499 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3500 {
3501 struct lpfc_vport **vports;
3502 int i;
3503
3504 vports = lpfc_create_vport_work_array(phba);
3505 if (vports)
3506 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3507 lpfc_sli4_perform_vport_cvl(vports[i]);
3508 lpfc_destroy_vport_work_array(phba, vports);
3509 }
3510
3511 /**
3512 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3513 * @phba: pointer to lpfc hba data structure.
3514 * @acqe_link: pointer to the async fcoe completion queue entry.
3515 *
3516 * This routine is to handle the SLI4 asynchronous fcoe event.
3517 **/
3518 static void
3519 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3520 struct lpfc_acqe_fip *acqe_fip)
3521 {
3522 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3523 int rc;
3524 struct lpfc_vport *vport;
3525 struct lpfc_nodelist *ndlp;
3526 struct Scsi_Host *shost;
3527 int active_vlink_present;
3528 struct lpfc_vport **vports;
3529 int i;
3530
3531 phba->fc_eventTag = acqe_fip->event_tag;
3532 phba->fcoe_eventtag = acqe_fip->event_tag;
3533 switch (event_type) {
3534 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3535 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3536 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3537 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3538 LOG_DISCOVERY,
3539 "2546 New FCF event, evt_tag:x%x, "
3540 "index:x%x\n",
3541 acqe_fip->event_tag,
3542 acqe_fip->index);
3543 else
3544 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3545 LOG_DISCOVERY,
3546 "2788 FCF param modified event, "
3547 "evt_tag:x%x, index:x%x\n",
3548 acqe_fip->event_tag,
3549 acqe_fip->index);
3550 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3551 /*
3552 * During period of FCF discovery, read the FCF
3553 * table record indexed by the event to update
3554 * FCF roundrobin failover eligible FCF bmask.
3555 */
3556 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3557 LOG_DISCOVERY,
3558 "2779 Read FCF (x%x) for updating "
3559 "roundrobin FCF failover bmask\n",
3560 acqe_fip->index);
3561 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3562 }
3563
3564 /* If the FCF discovery is in progress, do nothing. */
3565 spin_lock_irq(&phba->hbalock);
3566 if (phba->hba_flag & FCF_TS_INPROG) {
3567 spin_unlock_irq(&phba->hbalock);
3568 break;
3569 }
3570 /* If fast FCF failover rescan event is pending, do nothing */
3571 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3572 spin_unlock_irq(&phba->hbalock);
3573 break;
3574 }
3575
3576 /* If the FCF has been in discovered state, do nothing. */
3577 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3578 spin_unlock_irq(&phba->hbalock);
3579 break;
3580 }
3581 spin_unlock_irq(&phba->hbalock);
3582
3583 /* Otherwise, scan the entire FCF table and re-discover SAN */
3584 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3585 "2770 Start FCF table scan per async FCF "
3586 "event, evt_tag:x%x, index:x%x\n",
3587 acqe_fip->event_tag, acqe_fip->index);
3588 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3589 LPFC_FCOE_FCF_GET_FIRST);
3590 if (rc)
3591 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3592 "2547 Issue FCF scan read FCF mailbox "
3593 "command failed (x%x)\n", rc);
3594 break;
3595
3596 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3597 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3598 "2548 FCF Table full count 0x%x tag 0x%x\n",
3599 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3600 acqe_fip->event_tag);
3601 break;
3602
3603 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3604 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3605 "2549 FCF (x%x) disconnected from network, "
3606 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3607 /*
3608 * If we are in the middle of FCF failover process, clear
3609 * the corresponding FCF bit in the roundrobin bitmap.
3610 */
3611 spin_lock_irq(&phba->hbalock);
3612 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3613 spin_unlock_irq(&phba->hbalock);
3614 /* Update FLOGI FCF failover eligible FCF bmask */
3615 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3616 break;
3617 }
3618 spin_unlock_irq(&phba->hbalock);
3619
3620 /* If the event is not for currently used fcf do nothing */
3621 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3622 break;
3623
3624 /*
3625 * Otherwise, request the port to rediscover the entire FCF
3626 * table for a fast recovery from case that the current FCF
3627 * is no longer valid as we are not in the middle of FCF
3628 * failover process already.
3629 */
3630 spin_lock_irq(&phba->hbalock);
3631 /* Mark the fast failover process in progress */
3632 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3633 spin_unlock_irq(&phba->hbalock);
3634
3635 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3636 "2771 Start FCF fast failover process due to "
3637 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3638 "\n", acqe_fip->event_tag, acqe_fip->index);
3639 rc = lpfc_sli4_redisc_fcf_table(phba);
3640 if (rc) {
3641 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3642 LOG_DISCOVERY,
3643 "2772 Issue FCF rediscover mabilbox "
3644 "command failed, fail through to FCF "
3645 "dead event\n");
3646 spin_lock_irq(&phba->hbalock);
3647 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3648 spin_unlock_irq(&phba->hbalock);
3649 /*
3650 * Last resort will fail over by treating this
3651 * as a link down to FCF registration.
3652 */
3653 lpfc_sli4_fcf_dead_failthrough(phba);
3654 } else {
3655 /* Reset FCF roundrobin bmask for new discovery */
3656 lpfc_sli4_clear_fcf_rr_bmask(phba);
3657 /*
3658 * Handling fast FCF failover to a DEAD FCF event is
3659 * considered equalivant to receiving CVL to all vports.
3660 */
3661 lpfc_sli4_perform_all_vport_cvl(phba);
3662 }
3663 break;
3664 case LPFC_FIP_EVENT_TYPE_CVL:
3665 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3666 "2718 Clear Virtual Link Received for VPI 0x%x"
3667 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3668
3669 vport = lpfc_find_vport_by_vpid(phba,
3670 acqe_fip->index);
3671 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3672 if (!ndlp)
3673 break;
3674 active_vlink_present = 0;
3675
3676 vports = lpfc_create_vport_work_array(phba);
3677 if (vports) {
3678 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3679 i++) {
3680 if ((!(vports[i]->fc_flag &
3681 FC_VPORT_CVL_RCVD)) &&
3682 (vports[i]->port_state > LPFC_FDISC)) {
3683 active_vlink_present = 1;
3684 break;
3685 }
3686 }
3687 lpfc_destroy_vport_work_array(phba, vports);
3688 }
3689
3690 if (active_vlink_present) {
3691 /*
3692 * If there are other active VLinks present,
3693 * re-instantiate the Vlink using FDISC.
3694 */
3695 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3696 shost = lpfc_shost_from_vport(vport);
3697 spin_lock_irq(shost->host_lock);
3698 ndlp->nlp_flag |= NLP_DELAY_TMO;
3699 spin_unlock_irq(shost->host_lock);
3700 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3701 vport->port_state = LPFC_FDISC;
3702 } else {
3703 /*
3704 * Otherwise, we request port to rediscover
3705 * the entire FCF table for a fast recovery
3706 * from possible case that the current FCF
3707 * is no longer valid if we are not already
3708 * in the FCF failover process.
3709 */
3710 spin_lock_irq(&phba->hbalock);
3711 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3712 spin_unlock_irq(&phba->hbalock);
3713 break;
3714 }
3715 /* Mark the fast failover process in progress */
3716 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3717 spin_unlock_irq(&phba->hbalock);
3718 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3719 LOG_DISCOVERY,
3720 "2773 Start FCF failover per CVL, "
3721 "evt_tag:x%x\n", acqe_fip->event_tag);
3722 rc = lpfc_sli4_redisc_fcf_table(phba);
3723 if (rc) {
3724 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3725 LOG_DISCOVERY,
3726 "2774 Issue FCF rediscover "
3727 "mabilbox command failed, "
3728 "through to CVL event\n");
3729 spin_lock_irq(&phba->hbalock);
3730 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3731 spin_unlock_irq(&phba->hbalock);
3732 /*
3733 * Last resort will be re-try on the
3734 * the current registered FCF entry.
3735 */
3736 lpfc_retry_pport_discovery(phba);
3737 } else
3738 /*
3739 * Reset FCF roundrobin bmask for new
3740 * discovery.
3741 */
3742 lpfc_sli4_clear_fcf_rr_bmask(phba);
3743 }
3744 break;
3745 default:
3746 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3747 "0288 Unknown FCoE event type 0x%x event tag "
3748 "0x%x\n", event_type, acqe_fip->event_tag);
3749 break;
3750 }
3751 }
3752
3753 /**
3754 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3755 * @phba: pointer to lpfc hba data structure.
3756 * @acqe_link: pointer to the async dcbx completion queue entry.
3757 *
3758 * This routine is to handle the SLI4 asynchronous dcbx event.
3759 **/
3760 static void
3761 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3762 struct lpfc_acqe_dcbx *acqe_dcbx)
3763 {
3764 phba->fc_eventTag = acqe_dcbx->event_tag;
3765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3766 "0290 The SLI4 DCBX asynchronous event is not "
3767 "handled yet\n");
3768 }
3769
3770 /**
3771 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3772 * @phba: pointer to lpfc hba data structure.
3773 * @acqe_link: pointer to the async grp5 completion queue entry.
3774 *
3775 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3776 * is an asynchronous notified of a logical link speed change. The Port
3777 * reports the logical link speed in units of 10Mbps.
3778 **/
3779 static void
3780 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3781 struct lpfc_acqe_grp5 *acqe_grp5)
3782 {
3783 uint16_t prev_ll_spd;
3784
3785 phba->fc_eventTag = acqe_grp5->event_tag;
3786 phba->fcoe_eventtag = acqe_grp5->event_tag;
3787 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3788 phba->sli4_hba.link_state.logical_speed =
3789 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3790 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3791 "2789 GRP5 Async Event: Updating logical link speed "
3792 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3793 (phba->sli4_hba.link_state.logical_speed*10));
3794 }
3795
3796 /**
3797 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3798 * @phba: pointer to lpfc hba data structure.
3799 *
3800 * This routine is invoked by the worker thread to process all the pending
3801 * SLI4 asynchronous events.
3802 **/
3803 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3804 {
3805 struct lpfc_cq_event *cq_event;
3806
3807 /* First, declare the async event has been handled */
3808 spin_lock_irq(&phba->hbalock);
3809 phba->hba_flag &= ~ASYNC_EVENT;
3810 spin_unlock_irq(&phba->hbalock);
3811 /* Now, handle all the async events */
3812 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3813 /* Get the first event from the head of the event queue */
3814 spin_lock_irq(&phba->hbalock);
3815 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3816 cq_event, struct lpfc_cq_event, list);
3817 spin_unlock_irq(&phba->hbalock);
3818 /* Process the asynchronous event */
3819 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3820 case LPFC_TRAILER_CODE_LINK:
3821 lpfc_sli4_async_link_evt(phba,
3822 &cq_event->cqe.acqe_link);
3823 break;
3824 case LPFC_TRAILER_CODE_FCOE:
3825 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3826 break;
3827 case LPFC_TRAILER_CODE_DCBX:
3828 lpfc_sli4_async_dcbx_evt(phba,
3829 &cq_event->cqe.acqe_dcbx);
3830 break;
3831 case LPFC_TRAILER_CODE_GRP5:
3832 lpfc_sli4_async_grp5_evt(phba,
3833 &cq_event->cqe.acqe_grp5);
3834 break;
3835 case LPFC_TRAILER_CODE_FC:
3836 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3837 break;
3838 case LPFC_TRAILER_CODE_SLI:
3839 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3840 break;
3841 default:
3842 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3843 "1804 Invalid asynchrous event code: "
3844 "x%x\n", bf_get(lpfc_trailer_code,
3845 &cq_event->cqe.mcqe_cmpl));
3846 break;
3847 }
3848 /* Free the completion event processed to the free pool */
3849 lpfc_sli4_cq_event_release(phba, cq_event);
3850 }
3851 }
3852
3853 /**
3854 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3855 * @phba: pointer to lpfc hba data structure.
3856 *
3857 * This routine is invoked by the worker thread to process FCF table
3858 * rediscovery pending completion event.
3859 **/
3860 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3861 {
3862 int rc;
3863
3864 spin_lock_irq(&phba->hbalock);
3865 /* Clear FCF rediscovery timeout event */
3866 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3867 /* Clear driver fast failover FCF record flag */
3868 phba->fcf.failover_rec.flag = 0;
3869 /* Set state for FCF fast failover */
3870 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3871 spin_unlock_irq(&phba->hbalock);
3872
3873 /* Scan FCF table from the first entry to re-discover SAN */
3874 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3875 "2777 Start post-quiescent FCF table scan\n");
3876 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3877 if (rc)
3878 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3879 "2747 Issue FCF scan read FCF mailbox "
3880 "command failed 0x%x\n", rc);
3881 }
3882
3883 /**
3884 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3885 * @phba: pointer to lpfc hba data structure.
3886 * @dev_grp: The HBA PCI-Device group number.
3887 *
3888 * This routine is invoked to set up the per HBA PCI-Device group function
3889 * API jump table entries.
3890 *
3891 * Return: 0 if success, otherwise -ENODEV
3892 **/
3893 int
3894 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3895 {
3896 int rc;
3897
3898 /* Set up lpfc PCI-device group */
3899 phba->pci_dev_grp = dev_grp;
3900
3901 /* The LPFC_PCI_DEV_OC uses SLI4 */
3902 if (dev_grp == LPFC_PCI_DEV_OC)
3903 phba->sli_rev = LPFC_SLI_REV4;
3904
3905 /* Set up device INIT API function jump table */
3906 rc = lpfc_init_api_table_setup(phba, dev_grp);
3907 if (rc)
3908 return -ENODEV;
3909 /* Set up SCSI API function jump table */
3910 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3911 if (rc)
3912 return -ENODEV;
3913 /* Set up SLI API function jump table */
3914 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3915 if (rc)
3916 return -ENODEV;
3917 /* Set up MBOX API function jump table */
3918 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3919 if (rc)
3920 return -ENODEV;
3921
3922 return 0;
3923 }
3924
3925 /**
3926 * lpfc_log_intr_mode - Log the active interrupt mode
3927 * @phba: pointer to lpfc hba data structure.
3928 * @intr_mode: active interrupt mode adopted.
3929 *
3930 * This routine it invoked to log the currently used active interrupt mode
3931 * to the device.
3932 **/
3933 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3934 {
3935 switch (intr_mode) {
3936 case 0:
3937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3938 "0470 Enable INTx interrupt mode.\n");
3939 break;
3940 case 1:
3941 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3942 "0481 Enabled MSI interrupt mode.\n");
3943 break;
3944 case 2:
3945 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3946 "0480 Enabled MSI-X interrupt mode.\n");
3947 break;
3948 default:
3949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3950 "0482 Illegal interrupt mode.\n");
3951 break;
3952 }
3953 return;
3954 }
3955
3956 /**
3957 * lpfc_enable_pci_dev - Enable a generic PCI device.
3958 * @phba: pointer to lpfc hba data structure.
3959 *
3960 * This routine is invoked to enable the PCI device that is common to all
3961 * PCI devices.
3962 *
3963 * Return codes
3964 * 0 - successful
3965 * other values - error
3966 **/
3967 static int
3968 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3969 {
3970 struct pci_dev *pdev;
3971 int bars = 0;
3972
3973 /* Obtain PCI device reference */
3974 if (!phba->pcidev)
3975 goto out_error;
3976 else
3977 pdev = phba->pcidev;
3978 /* Select PCI BARs */
3979 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3980 /* Enable PCI device */
3981 if (pci_enable_device_mem(pdev))
3982 goto out_error;
3983 /* Request PCI resource for the device */
3984 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3985 goto out_disable_device;
3986 /* Set up device as PCI master and save state for EEH */
3987 pci_set_master(pdev);
3988 pci_try_set_mwi(pdev);
3989 pci_save_state(pdev);
3990
3991 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3992 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3993 pdev->needs_freset = 1;
3994
3995 return 0;
3996
3997 out_disable_device:
3998 pci_disable_device(pdev);
3999 out_error:
4000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4001 "1401 Failed to enable pci device, bars:x%x\n", bars);
4002 return -ENODEV;
4003 }
4004
4005 /**
4006 * lpfc_disable_pci_dev - Disable a generic PCI device.
4007 * @phba: pointer to lpfc hba data structure.
4008 *
4009 * This routine is invoked to disable the PCI device that is common to all
4010 * PCI devices.
4011 **/
4012 static void
4013 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4014 {
4015 struct pci_dev *pdev;
4016 int bars;
4017
4018 /* Obtain PCI device reference */
4019 if (!phba->pcidev)
4020 return;
4021 else
4022 pdev = phba->pcidev;
4023 /* Select PCI BARs */
4024 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4025 /* Release PCI resource and disable PCI device */
4026 pci_release_selected_regions(pdev, bars);
4027 pci_disable_device(pdev);
4028 /* Null out PCI private reference to driver */
4029 pci_set_drvdata(pdev, NULL);
4030
4031 return;
4032 }
4033
4034 /**
4035 * lpfc_reset_hba - Reset a hba
4036 * @phba: pointer to lpfc hba data structure.
4037 *
4038 * This routine is invoked to reset a hba device. It brings the HBA
4039 * offline, performs a board restart, and then brings the board back
4040 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4041 * on outstanding mailbox commands.
4042 **/
4043 void
4044 lpfc_reset_hba(struct lpfc_hba *phba)
4045 {
4046 /* If resets are disabled then set error state and return. */
4047 if (!phba->cfg_enable_hba_reset) {
4048 phba->link_state = LPFC_HBA_ERROR;
4049 return;
4050 }
4051 lpfc_offline_prep(phba);
4052 lpfc_offline(phba);
4053 lpfc_sli_brdrestart(phba);
4054 lpfc_online(phba);
4055 lpfc_unblock_mgmt_io(phba);
4056 }
4057
4058 /**
4059 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4060 * @phba: pointer to lpfc hba data structure.
4061 *
4062 * This function enables the PCI SR-IOV virtual functions to a physical
4063 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4064 * enable the number of virtual functions to the physical function. As
4065 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4066 * API call does not considered as an error condition for most of the device.
4067 **/
4068 uint16_t
4069 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4070 {
4071 struct pci_dev *pdev = phba->pcidev;
4072 uint16_t nr_virtfn;
4073 int pos;
4074
4075 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4076 if (pos == 0)
4077 return 0;
4078
4079 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4080 return nr_virtfn;
4081 }
4082
4083 /**
4084 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4085 * @phba: pointer to lpfc hba data structure.
4086 * @nr_vfn: number of virtual functions to be enabled.
4087 *
4088 * This function enables the PCI SR-IOV virtual functions to a physical
4089 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4090 * enable the number of virtual functions to the physical function. As
4091 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4092 * API call does not considered as an error condition for most of the device.
4093 **/
4094 int
4095 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4096 {
4097 struct pci_dev *pdev = phba->pcidev;
4098 uint16_t max_nr_vfn;
4099 int rc;
4100
4101 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4102 if (nr_vfn > max_nr_vfn) {
4103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4104 "3057 Requested vfs (%d) greater than "
4105 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4106 return -EINVAL;
4107 }
4108
4109 rc = pci_enable_sriov(pdev, nr_vfn);
4110 if (rc) {
4111 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4112 "2806 Failed to enable sriov on this device "
4113 "with vfn number nr_vf:%d, rc:%d\n",
4114 nr_vfn, rc);
4115 } else
4116 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4117 "2807 Successful enable sriov on this device "
4118 "with vfn number nr_vf:%d\n", nr_vfn);
4119 return rc;
4120 }
4121
4122 /**
4123 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4124 * @phba: pointer to lpfc hba data structure.
4125 *
4126 * This routine is invoked to set up the driver internal resources specific to
4127 * support the SLI-3 HBA device it attached to.
4128 *
4129 * Return codes
4130 * 0 - successful
4131 * other values - error
4132 **/
4133 static int
4134 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4135 {
4136 struct lpfc_sli *psli;
4137 int rc;
4138
4139 /*
4140 * Initialize timers used by driver
4141 */
4142
4143 /* Heartbeat timer */
4144 init_timer(&phba->hb_tmofunc);
4145 phba->hb_tmofunc.function = lpfc_hb_timeout;
4146 phba->hb_tmofunc.data = (unsigned long)phba;
4147
4148 psli = &phba->sli;
4149 /* MBOX heartbeat timer */
4150 init_timer(&psli->mbox_tmo);
4151 psli->mbox_tmo.function = lpfc_mbox_timeout;
4152 psli->mbox_tmo.data = (unsigned long) phba;
4153 /* FCP polling mode timer */
4154 init_timer(&phba->fcp_poll_timer);
4155 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4156 phba->fcp_poll_timer.data = (unsigned long) phba;
4157 /* Fabric block timer */
4158 init_timer(&phba->fabric_block_timer);
4159 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4160 phba->fabric_block_timer.data = (unsigned long) phba;
4161 /* EA polling mode timer */
4162 init_timer(&phba->eratt_poll);
4163 phba->eratt_poll.function = lpfc_poll_eratt;
4164 phba->eratt_poll.data = (unsigned long) phba;
4165
4166 /* Host attention work mask setup */
4167 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4168 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4169
4170 /* Get all the module params for configuring this host */
4171 lpfc_get_cfgparam(phba);
4172 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4173 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4174 /* check for menlo minimum sg count */
4175 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4176 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4177 }
4178
4179 /*
4180 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4181 * used to create the sg_dma_buf_pool must be dynamically calculated.
4182 * 2 segments are added since the IOCB needs a command and response bde.
4183 */
4184 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4185 sizeof(struct fcp_rsp) +
4186 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4187
4188 if (phba->cfg_enable_bg) {
4189 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4190 phba->cfg_sg_dma_buf_size +=
4191 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4192 }
4193
4194 /* Also reinitialize the host templates with new values. */
4195 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4196 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4197
4198 phba->max_vpi = LPFC_MAX_VPI;
4199 /* This will be set to correct value after config_port mbox */
4200 phba->max_vports = 0;
4201
4202 /*
4203 * Initialize the SLI Layer to run with lpfc HBAs.
4204 */
4205 lpfc_sli_setup(phba);
4206 lpfc_sli_queue_setup(phba);
4207
4208 /* Allocate device driver memory */
4209 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4210 return -ENOMEM;
4211
4212 /*
4213 * Enable sr-iov virtual functions if supported and configured
4214 * through the module parameter.
4215 */
4216 if (phba->cfg_sriov_nr_virtfn > 0) {
4217 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4218 phba->cfg_sriov_nr_virtfn);
4219 if (rc) {
4220 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4221 "2808 Requested number of SR-IOV "
4222 "virtual functions (%d) is not "
4223 "supported\n",
4224 phba->cfg_sriov_nr_virtfn);
4225 phba->cfg_sriov_nr_virtfn = 0;
4226 }
4227 }
4228
4229 return 0;
4230 }
4231
4232 /**
4233 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4234 * @phba: pointer to lpfc hba data structure.
4235 *
4236 * This routine is invoked to unset the driver internal resources set up
4237 * specific for supporting the SLI-3 HBA device it attached to.
4238 **/
4239 static void
4240 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4241 {
4242 /* Free device driver memory allocated */
4243 lpfc_mem_free_all(phba);
4244
4245 return;
4246 }
4247
4248 /**
4249 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4250 * @phba: pointer to lpfc hba data structure.
4251 *
4252 * This routine is invoked to set up the driver internal resources specific to
4253 * support the SLI-4 HBA device it attached to.
4254 *
4255 * Return codes
4256 * 0 - successful
4257 * other values - error
4258 **/
4259 static int
4260 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4261 {
4262 struct lpfc_sli *psli;
4263 LPFC_MBOXQ_t *mboxq;
4264 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4265 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4266 struct lpfc_mqe *mqe;
4267 int longs, sli_family;
4268
4269 /* Before proceed, wait for POST done and device ready */
4270 rc = lpfc_sli4_post_status_check(phba);
4271 if (rc)
4272 return -ENODEV;
4273
4274 /*
4275 * Initialize timers used by driver
4276 */
4277
4278 /* Heartbeat timer */
4279 init_timer(&phba->hb_tmofunc);
4280 phba->hb_tmofunc.function = lpfc_hb_timeout;
4281 phba->hb_tmofunc.data = (unsigned long)phba;
4282 init_timer(&phba->rrq_tmr);
4283 phba->rrq_tmr.function = lpfc_rrq_timeout;
4284 phba->rrq_tmr.data = (unsigned long)phba;
4285
4286 psli = &phba->sli;
4287 /* MBOX heartbeat timer */
4288 init_timer(&psli->mbox_tmo);
4289 psli->mbox_tmo.function = lpfc_mbox_timeout;
4290 psli->mbox_tmo.data = (unsigned long) phba;
4291 /* Fabric block timer */
4292 init_timer(&phba->fabric_block_timer);
4293 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4294 phba->fabric_block_timer.data = (unsigned long) phba;
4295 /* EA polling mode timer */
4296 init_timer(&phba->eratt_poll);
4297 phba->eratt_poll.function = lpfc_poll_eratt;
4298 phba->eratt_poll.data = (unsigned long) phba;
4299 /* FCF rediscover timer */
4300 init_timer(&phba->fcf.redisc_wait);
4301 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4302 phba->fcf.redisc_wait.data = (unsigned long)phba;
4303
4304 /*
4305 * Control structure for handling external multi-buffer mailbox
4306 * command pass-through.
4307 */
4308 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4309 sizeof(struct lpfc_mbox_ext_buf_ctx));
4310 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4311
4312 /*
4313 * We need to do a READ_CONFIG mailbox command here before
4314 * calling lpfc_get_cfgparam. For VFs this will report the
4315 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4316 * All of the resources allocated
4317 * for this Port are tied to these values.
4318 */
4319 /* Get all the module params for configuring this host */
4320 lpfc_get_cfgparam(phba);
4321 phba->max_vpi = LPFC_MAX_VPI;
4322 /* This will be set to correct value after the read_config mbox */
4323 phba->max_vports = 0;
4324
4325 /* Program the default value of vlan_id and fc_map */
4326 phba->valid_vlan = 0;
4327 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4328 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4329 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4330
4331 /*
4332 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4333 * used to create the sg_dma_buf_pool must be dynamically calculated.
4334 * 2 segments are added since the IOCB needs a command and response bde.
4335 * To insure that the scsi sgl does not cross a 4k page boundary only
4336 * sgl sizes of must be a power of 2.
4337 */
4338 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4339 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4340
4341 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4342 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4343 switch (sli_family) {
4344 case LPFC_SLI_INTF_FAMILY_BE2:
4345 case LPFC_SLI_INTF_FAMILY_BE3:
4346 /* There is a single hint for BE - 2 pages per BPL. */
4347 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4348 LPFC_SLI_INTF_SLI_HINT1_1)
4349 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4350 break;
4351 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4352 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4353 default:
4354 break;
4355 }
4356 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4357 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4358 dma_buf_size = dma_buf_size << 1)
4359 ;
4360 if (dma_buf_size == max_buf_size)
4361 phba->cfg_sg_seg_cnt = (dma_buf_size -
4362 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4363 (2 * sizeof(struct sli4_sge))) /
4364 sizeof(struct sli4_sge);
4365 phba->cfg_sg_dma_buf_size = dma_buf_size;
4366
4367 /* Initialize buffer queue management fields */
4368 hbq_count = lpfc_sli_hbq_count();
4369 for (i = 0; i < hbq_count; ++i)
4370 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4371 INIT_LIST_HEAD(&phba->rb_pend_list);
4372 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4373 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4374
4375 /*
4376 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4377 */
4378 /* Initialize the Abort scsi buffer list used by driver */
4379 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4380 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4381 /* This abort list used by worker thread */
4382 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4383
4384 /*
4385 * Initialize driver internal slow-path work queues
4386 */
4387
4388 /* Driver internel slow-path CQ Event pool */
4389 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4390 /* Response IOCB work queue list */
4391 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4392 /* Asynchronous event CQ Event work queue list */
4393 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4394 /* Fast-path XRI aborted CQ Event work queue list */
4395 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4396 /* Slow-path XRI aborted CQ Event work queue list */
4397 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4398 /* Receive queue CQ Event work queue list */
4399 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4400
4401 /* Initialize extent block lists. */
4402 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4403 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4404 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4405 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4406
4407 /* Initialize the driver internal SLI layer lists. */
4408 lpfc_sli_setup(phba);
4409 lpfc_sli_queue_setup(phba);
4410
4411 /* Allocate device driver memory */
4412 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4413 if (rc)
4414 return -ENOMEM;
4415
4416 /* IF Type 2 ports get initialized now. */
4417 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4418 LPFC_SLI_INTF_IF_TYPE_2) {
4419 rc = lpfc_pci_function_reset(phba);
4420 if (unlikely(rc))
4421 return -ENODEV;
4422 }
4423
4424 /* Create the bootstrap mailbox command */
4425 rc = lpfc_create_bootstrap_mbox(phba);
4426 if (unlikely(rc))
4427 goto out_free_mem;
4428
4429 /* Set up the host's endian order with the device. */
4430 rc = lpfc_setup_endian_order(phba);
4431 if (unlikely(rc))
4432 goto out_free_bsmbx;
4433
4434 /* Set up the hba's configuration parameters. */
4435 rc = lpfc_sli4_read_config(phba);
4436 if (unlikely(rc))
4437 goto out_free_bsmbx;
4438
4439 /* IF Type 0 ports get initialized now. */
4440 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4441 LPFC_SLI_INTF_IF_TYPE_0) {
4442 rc = lpfc_pci_function_reset(phba);
4443 if (unlikely(rc))
4444 goto out_free_bsmbx;
4445 }
4446
4447 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4448 GFP_KERNEL);
4449 if (!mboxq) {
4450 rc = -ENOMEM;
4451 goto out_free_bsmbx;
4452 }
4453
4454 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4455 lpfc_supported_pages(mboxq);
4456 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4457 if (!rc) {
4458 mqe = &mboxq->u.mqe;
4459 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4460 LPFC_MAX_SUPPORTED_PAGES);
4461 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4462 switch (pn_page[i]) {
4463 case LPFC_SLI4_PARAMETERS:
4464 phba->sli4_hba.pc_sli4_params.supported = 1;
4465 break;
4466 default:
4467 break;
4468 }
4469 }
4470 /* Read the port's SLI4 Parameters capabilities if supported. */
4471 if (phba->sli4_hba.pc_sli4_params.supported)
4472 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4473 if (rc) {
4474 mempool_free(mboxq, phba->mbox_mem_pool);
4475 rc = -EIO;
4476 goto out_free_bsmbx;
4477 }
4478 }
4479 /*
4480 * Get sli4 parameters that override parameters from Port capabilities.
4481 * If this call fails, it isn't critical unless the SLI4 parameters come
4482 * back in conflict.
4483 */
4484 rc = lpfc_get_sli4_parameters(phba, mboxq);
4485 if (rc) {
4486 if (phba->sli4_hba.extents_in_use &&
4487 phba->sli4_hba.rpi_hdrs_in_use) {
4488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4489 "2999 Unsupported SLI4 Parameters "
4490 "Extents and RPI headers enabled.\n");
4491 goto out_free_bsmbx;
4492 }
4493 }
4494 mempool_free(mboxq, phba->mbox_mem_pool);
4495 /* Verify all the SLI4 queues */
4496 rc = lpfc_sli4_queue_verify(phba);
4497 if (rc)
4498 goto out_free_bsmbx;
4499
4500 /* Create driver internal CQE event pool */
4501 rc = lpfc_sli4_cq_event_pool_create(phba);
4502 if (rc)
4503 goto out_free_bsmbx;
4504
4505 /* Initialize and populate the iocb list per host */
4506 rc = lpfc_init_sgl_list(phba);
4507 if (rc) {
4508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4509 "1400 Failed to initialize sgl list.\n");
4510 goto out_destroy_cq_event_pool;
4511 }
4512 rc = lpfc_init_active_sgl_array(phba);
4513 if (rc) {
4514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4515 "1430 Failed to initialize sgl list.\n");
4516 goto out_free_sgl_list;
4517 }
4518 rc = lpfc_sli4_init_rpi_hdrs(phba);
4519 if (rc) {
4520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4521 "1432 Failed to initialize rpi headers.\n");
4522 goto out_free_active_sgl;
4523 }
4524
4525 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4526 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4527 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4528 GFP_KERNEL);
4529 if (!phba->fcf.fcf_rr_bmask) {
4530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4531 "2759 Failed allocate memory for FCF round "
4532 "robin failover bmask\n");
4533 rc = -ENOMEM;
4534 goto out_remove_rpi_hdrs;
4535 }
4536
4537 /*
4538 * The cfg_fcp_eq_count can be zero whenever there is exactly one
4539 * interrupt vector. This is not an error
4540 */
4541 if (phba->cfg_fcp_eq_count) {
4542 phba->sli4_hba.fcp_eq_hdl =
4543 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4544 phba->cfg_fcp_eq_count), GFP_KERNEL);
4545 if (!phba->sli4_hba.fcp_eq_hdl) {
4546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4547 "2572 Failed allocate memory for "
4548 "fast-path per-EQ handle array\n");
4549 rc = -ENOMEM;
4550 goto out_free_fcf_rr_bmask;
4551 }
4552 }
4553
4554 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4555 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4556 if (!phba->sli4_hba.msix_entries) {
4557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4558 "2573 Failed allocate memory for msi-x "
4559 "interrupt vector entries\n");
4560 rc = -ENOMEM;
4561 goto out_free_fcp_eq_hdl;
4562 }
4563
4564 /*
4565 * Enable sr-iov virtual functions if supported and configured
4566 * through the module parameter.
4567 */
4568 if (phba->cfg_sriov_nr_virtfn > 0) {
4569 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4570 phba->cfg_sriov_nr_virtfn);
4571 if (rc) {
4572 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4573 "3020 Requested number of SR-IOV "
4574 "virtual functions (%d) is not "
4575 "supported\n",
4576 phba->cfg_sriov_nr_virtfn);
4577 phba->cfg_sriov_nr_virtfn = 0;
4578 }
4579 }
4580
4581 return 0;
4582
4583 out_free_fcp_eq_hdl:
4584 kfree(phba->sli4_hba.fcp_eq_hdl);
4585 out_free_fcf_rr_bmask:
4586 kfree(phba->fcf.fcf_rr_bmask);
4587 out_remove_rpi_hdrs:
4588 lpfc_sli4_remove_rpi_hdrs(phba);
4589 out_free_active_sgl:
4590 lpfc_free_active_sgl(phba);
4591 out_free_sgl_list:
4592 lpfc_free_sgl_list(phba);
4593 out_destroy_cq_event_pool:
4594 lpfc_sli4_cq_event_pool_destroy(phba);
4595 out_free_bsmbx:
4596 lpfc_destroy_bootstrap_mbox(phba);
4597 out_free_mem:
4598 lpfc_mem_free(phba);
4599 return rc;
4600 }
4601
4602 /**
4603 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4604 * @phba: pointer to lpfc hba data structure.
4605 *
4606 * This routine is invoked to unset the driver internal resources set up
4607 * specific for supporting the SLI-4 HBA device it attached to.
4608 **/
4609 static void
4610 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4611 {
4612 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4613
4614 /* Free memory allocated for msi-x interrupt vector entries */
4615 kfree(phba->sli4_hba.msix_entries);
4616
4617 /* Free memory allocated for fast-path work queue handles */
4618 kfree(phba->sli4_hba.fcp_eq_hdl);
4619
4620 /* Free the allocated rpi headers. */
4621 lpfc_sli4_remove_rpi_hdrs(phba);
4622 lpfc_sli4_remove_rpis(phba);
4623
4624 /* Free eligible FCF index bmask */
4625 kfree(phba->fcf.fcf_rr_bmask);
4626
4627 /* Free the ELS sgl list */
4628 lpfc_free_active_sgl(phba);
4629 lpfc_free_sgl_list(phba);
4630
4631 /* Free the SCSI sgl management array */
4632 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4633
4634 /* Free the completion queue EQ event pool */
4635 lpfc_sli4_cq_event_release_all(phba);
4636 lpfc_sli4_cq_event_pool_destroy(phba);
4637
4638 /* Release resource identifiers. */
4639 lpfc_sli4_dealloc_resource_identifiers(phba);
4640
4641 /* Free the bsmbx region. */
4642 lpfc_destroy_bootstrap_mbox(phba);
4643
4644 /* Free the SLI Layer memory with SLI4 HBAs */
4645 lpfc_mem_free_all(phba);
4646
4647 /* Free the current connect table */
4648 list_for_each_entry_safe(conn_entry, next_conn_entry,
4649 &phba->fcf_conn_rec_list, list) {
4650 list_del_init(&conn_entry->list);
4651 kfree(conn_entry);
4652 }
4653
4654 return;
4655 }
4656
4657 /**
4658 * lpfc_init_api_table_setup - Set up init api function jump table
4659 * @phba: The hba struct for which this call is being executed.
4660 * @dev_grp: The HBA PCI-Device group number.
4661 *
4662 * This routine sets up the device INIT interface API function jump table
4663 * in @phba struct.
4664 *
4665 * Returns: 0 - success, -ENODEV - failure.
4666 **/
4667 int
4668 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4669 {
4670 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4671 phba->lpfc_hba_down_link = lpfc_hba_down_link;
4672 phba->lpfc_selective_reset = lpfc_selective_reset;
4673 switch (dev_grp) {
4674 case LPFC_PCI_DEV_LP:
4675 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4676 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4677 phba->lpfc_stop_port = lpfc_stop_port_s3;
4678 break;
4679 case LPFC_PCI_DEV_OC:
4680 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4681 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4682 phba->lpfc_stop_port = lpfc_stop_port_s4;
4683 break;
4684 default:
4685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4686 "1431 Invalid HBA PCI-device group: 0x%x\n",
4687 dev_grp);
4688 return -ENODEV;
4689 break;
4690 }
4691 return 0;
4692 }
4693
4694 /**
4695 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4696 * @phba: pointer to lpfc hba data structure.
4697 *
4698 * This routine is invoked to set up the driver internal resources before the
4699 * device specific resource setup to support the HBA device it attached to.
4700 *
4701 * Return codes
4702 * 0 - successful
4703 * other values - error
4704 **/
4705 static int
4706 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4707 {
4708 /*
4709 * Driver resources common to all SLI revisions
4710 */
4711 atomic_set(&phba->fast_event_count, 0);
4712 spin_lock_init(&phba->hbalock);
4713
4714 /* Initialize ndlp management spinlock */
4715 spin_lock_init(&phba->ndlp_lock);
4716
4717 INIT_LIST_HEAD(&phba->port_list);
4718 INIT_LIST_HEAD(&phba->work_list);
4719 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4720
4721 /* Initialize the wait queue head for the kernel thread */
4722 init_waitqueue_head(&phba->work_waitq);
4723
4724 /* Initialize the scsi buffer list used by driver for scsi IO */
4725 spin_lock_init(&phba->scsi_buf_list_lock);
4726 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4727
4728 /* Initialize the fabric iocb list */
4729 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4730
4731 /* Initialize list to save ELS buffers */
4732 INIT_LIST_HEAD(&phba->elsbuf);
4733
4734 /* Initialize FCF connection rec list */
4735 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4736
4737 return 0;
4738 }
4739
4740 /**
4741 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4742 * @phba: pointer to lpfc hba data structure.
4743 *
4744 * This routine is invoked to set up the driver internal resources after the
4745 * device specific resource setup to support the HBA device it attached to.
4746 *
4747 * Return codes
4748 * 0 - successful
4749 * other values - error
4750 **/
4751 static int
4752 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4753 {
4754 int error;
4755
4756 /* Startup the kernel thread for this host adapter. */
4757 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4758 "lpfc_worker_%d", phba->brd_no);
4759 if (IS_ERR(phba->worker_thread)) {
4760 error = PTR_ERR(phba->worker_thread);
4761 return error;
4762 }
4763
4764 return 0;
4765 }
4766
4767 /**
4768 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4769 * @phba: pointer to lpfc hba data structure.
4770 *
4771 * This routine is invoked to unset the driver internal resources set up after
4772 * the device specific resource setup for supporting the HBA device it
4773 * attached to.
4774 **/
4775 static void
4776 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4777 {
4778 /* Stop kernel worker thread */
4779 kthread_stop(phba->worker_thread);
4780 }
4781
4782 /**
4783 * lpfc_free_iocb_list - Free iocb list.
4784 * @phba: pointer to lpfc hba data structure.
4785 *
4786 * This routine is invoked to free the driver's IOCB list and memory.
4787 **/
4788 static void
4789 lpfc_free_iocb_list(struct lpfc_hba *phba)
4790 {
4791 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4792
4793 spin_lock_irq(&phba->hbalock);
4794 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4795 &phba->lpfc_iocb_list, list) {
4796 list_del(&iocbq_entry->list);
4797 kfree(iocbq_entry);
4798 phba->total_iocbq_bufs--;
4799 }
4800 spin_unlock_irq(&phba->hbalock);
4801
4802 return;
4803 }
4804
4805 /**
4806 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4807 * @phba: pointer to lpfc hba data structure.
4808 *
4809 * This routine is invoked to allocate and initizlize the driver's IOCB
4810 * list and set up the IOCB tag array accordingly.
4811 *
4812 * Return codes
4813 * 0 - successful
4814 * other values - error
4815 **/
4816 static int
4817 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4818 {
4819 struct lpfc_iocbq *iocbq_entry = NULL;
4820 uint16_t iotag;
4821 int i;
4822
4823 /* Initialize and populate the iocb list per host. */
4824 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4825 for (i = 0; i < iocb_count; i++) {
4826 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4827 if (iocbq_entry == NULL) {
4828 printk(KERN_ERR "%s: only allocated %d iocbs of "
4829 "expected %d count. Unloading driver.\n",
4830 __func__, i, LPFC_IOCB_LIST_CNT);
4831 goto out_free_iocbq;
4832 }
4833
4834 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4835 if (iotag == 0) {
4836 kfree(iocbq_entry);
4837 printk(KERN_ERR "%s: failed to allocate IOTAG. "
4838 "Unloading driver.\n", __func__);
4839 goto out_free_iocbq;
4840 }
4841 iocbq_entry->sli4_lxritag = NO_XRI;
4842 iocbq_entry->sli4_xritag = NO_XRI;
4843
4844 spin_lock_irq(&phba->hbalock);
4845 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4846 phba->total_iocbq_bufs++;
4847 spin_unlock_irq(&phba->hbalock);
4848 }
4849
4850 return 0;
4851
4852 out_free_iocbq:
4853 lpfc_free_iocb_list(phba);
4854
4855 return -ENOMEM;
4856 }
4857
4858 /**
4859 * lpfc_free_sgl_list - Free sgl list.
4860 * @phba: pointer to lpfc hba data structure.
4861 *
4862 * This routine is invoked to free the driver's sgl list and memory.
4863 **/
4864 static void
4865 lpfc_free_sgl_list(struct lpfc_hba *phba)
4866 {
4867 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4868 LIST_HEAD(sglq_list);
4869
4870 spin_lock_irq(&phba->hbalock);
4871 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4872 spin_unlock_irq(&phba->hbalock);
4873
4874 list_for_each_entry_safe(sglq_entry, sglq_next,
4875 &sglq_list, list) {
4876 list_del(&sglq_entry->list);
4877 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4878 kfree(sglq_entry);
4879 phba->sli4_hba.total_sglq_bufs--;
4880 }
4881 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4882 }
4883
4884 /**
4885 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4886 * @phba: pointer to lpfc hba data structure.
4887 *
4888 * This routine is invoked to allocate the driver's active sgl memory.
4889 * This array will hold the sglq_entry's for active IOs.
4890 **/
4891 static int
4892 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4893 {
4894 int size;
4895 size = sizeof(struct lpfc_sglq *);
4896 size *= phba->sli4_hba.max_cfg_param.max_xri;
4897
4898 phba->sli4_hba.lpfc_sglq_active_list =
4899 kzalloc(size, GFP_KERNEL);
4900 if (!phba->sli4_hba.lpfc_sglq_active_list)
4901 return -ENOMEM;
4902 return 0;
4903 }
4904
4905 /**
4906 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4907 * @phba: pointer to lpfc hba data structure.
4908 *
4909 * This routine is invoked to walk through the array of active sglq entries
4910 * and free all of the resources.
4911 * This is just a place holder for now.
4912 **/
4913 static void
4914 lpfc_free_active_sgl(struct lpfc_hba *phba)
4915 {
4916 kfree(phba->sli4_hba.lpfc_sglq_active_list);
4917 }
4918
4919 /**
4920 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4921 * @phba: pointer to lpfc hba data structure.
4922 *
4923 * This routine is invoked to allocate and initizlize the driver's sgl
4924 * list and set up the sgl xritag tag array accordingly.
4925 *
4926 * Return codes
4927 * 0 - successful
4928 * other values - error
4929 **/
4930 static int
4931 lpfc_init_sgl_list(struct lpfc_hba *phba)
4932 {
4933 struct lpfc_sglq *sglq_entry = NULL;
4934 int i;
4935 int els_xri_cnt;
4936
4937 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4939 "2400 ELS XRI count %d.\n",
4940 els_xri_cnt);
4941 /* Initialize and populate the sglq list per host/VF. */
4942 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4943 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4944
4945 /* Sanity check on XRI management */
4946 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4947 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4948 "2562 No room left for SCSI XRI allocation: "
4949 "max_xri=%d, els_xri=%d\n",
4950 phba->sli4_hba.max_cfg_param.max_xri,
4951 els_xri_cnt);
4952 return -ENOMEM;
4953 }
4954
4955 /* Allocate memory for the ELS XRI management array */
4956 phba->sli4_hba.lpfc_els_sgl_array =
4957 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4958 GFP_KERNEL);
4959
4960 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4961 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4962 "2401 Failed to allocate memory for ELS "
4963 "XRI management array of size %d.\n",
4964 els_xri_cnt);
4965 return -ENOMEM;
4966 }
4967
4968 /* Keep the SCSI XRI into the XRI management array */
4969 phba->sli4_hba.scsi_xri_max =
4970 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4971 phba->sli4_hba.scsi_xri_cnt = 0;
4972 phba->sli4_hba.lpfc_scsi_psb_array =
4973 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4974 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4975
4976 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4977 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4978 "2563 Failed to allocate memory for SCSI "
4979 "XRI management array of size %d.\n",
4980 phba->sli4_hba.scsi_xri_max);
4981 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4982 return -ENOMEM;
4983 }
4984
4985 for (i = 0; i < els_xri_cnt; i++) {
4986 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4987 if (sglq_entry == NULL) {
4988 printk(KERN_ERR "%s: only allocated %d sgls of "
4989 "expected %d count. Unloading driver.\n",
4990 __func__, i, els_xri_cnt);
4991 goto out_free_mem;
4992 }
4993
4994 sglq_entry->buff_type = GEN_BUFF_TYPE;
4995 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4996 if (sglq_entry->virt == NULL) {
4997 kfree(sglq_entry);
4998 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4999 "Unloading driver.\n", __func__);
5000 goto out_free_mem;
5001 }
5002 sglq_entry->sgl = sglq_entry->virt;
5003 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
5004
5005 /* The list order is used by later block SGL registraton */
5006 spin_lock_irq(&phba->hbalock);
5007 sglq_entry->state = SGL_FREED;
5008 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
5009 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
5010 phba->sli4_hba.total_sglq_bufs++;
5011 spin_unlock_irq(&phba->hbalock);
5012 }
5013 return 0;
5014
5015 out_free_mem:
5016 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
5017 lpfc_free_sgl_list(phba);
5018 return -ENOMEM;
5019 }
5020
5021 /**
5022 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5023 * @phba: pointer to lpfc hba data structure.
5024 *
5025 * This routine is invoked to post rpi header templates to the
5026 * port for those SLI4 ports that do not support extents. This routine
5027 * posts a PAGE_SIZE memory region to the port to hold up to
5028 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5029 * and should be called only when interrupts are disabled.
5030 *
5031 * Return codes
5032 * 0 - successful
5033 * -ERROR - otherwise.
5034 **/
5035 int
5036 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5037 {
5038 int rc = 0;
5039 struct lpfc_rpi_hdr *rpi_hdr;
5040
5041 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5042 /*
5043 * If the SLI4 port supports extents, posting the rpi header isn't
5044 * required. Set the expected maximum count and let the actual value
5045 * get set when extents are fully allocated.
5046 */
5047 if (!phba->sli4_hba.rpi_hdrs_in_use) {
5048 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5049 return rc;
5050 }
5051 if (phba->sli4_hba.extents_in_use)
5052 return -EIO;
5053
5054 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5055 if (!rpi_hdr) {
5056 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5057 "0391 Error during rpi post operation\n");
5058 lpfc_sli4_remove_rpis(phba);
5059 rc = -ENODEV;
5060 }
5061
5062 return rc;
5063 }
5064
5065 /**
5066 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5067 * @phba: pointer to lpfc hba data structure.
5068 *
5069 * This routine is invoked to allocate a single 4KB memory region to
5070 * support rpis and stores them in the phba. This single region
5071 * provides support for up to 64 rpis. The region is used globally
5072 * by the device.
5073 *
5074 * Returns:
5075 * A valid rpi hdr on success.
5076 * A NULL pointer on any failure.
5077 **/
5078 struct lpfc_rpi_hdr *
5079 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5080 {
5081 uint16_t rpi_limit, curr_rpi_range;
5082 struct lpfc_dmabuf *dmabuf;
5083 struct lpfc_rpi_hdr *rpi_hdr;
5084 uint32_t rpi_count;
5085
5086 /*
5087 * If the SLI4 port supports extents, posting the rpi header isn't
5088 * required. Set the expected maximum count and let the actual value
5089 * get set when extents are fully allocated.
5090 */
5091 if (!phba->sli4_hba.rpi_hdrs_in_use)
5092 return NULL;
5093 if (phba->sli4_hba.extents_in_use)
5094 return NULL;
5095
5096 /* The limit on the logical index is just the max_rpi count. */
5097 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5098 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5099
5100 spin_lock_irq(&phba->hbalock);
5101 /*
5102 * Establish the starting RPI in this header block. The starting
5103 * rpi is normalized to a zero base because the physical rpi is
5104 * port based.
5105 */
5106 curr_rpi_range = phba->sli4_hba.next_rpi -
5107 phba->sli4_hba.max_cfg_param.rpi_base;
5108 spin_unlock_irq(&phba->hbalock);
5109
5110 /*
5111 * The port has a limited number of rpis. The increment here
5112 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5113 * and to allow the full max_rpi range per port.
5114 */
5115 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5116 rpi_count = rpi_limit - curr_rpi_range;
5117 else
5118 rpi_count = LPFC_RPI_HDR_COUNT;
5119
5120 if (!rpi_count)
5121 return NULL;
5122 /*
5123 * First allocate the protocol header region for the port. The
5124 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5125 */
5126 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5127 if (!dmabuf)
5128 return NULL;
5129
5130 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5131 LPFC_HDR_TEMPLATE_SIZE,
5132 &dmabuf->phys,
5133 GFP_KERNEL);
5134 if (!dmabuf->virt) {
5135 rpi_hdr = NULL;
5136 goto err_free_dmabuf;
5137 }
5138
5139 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5140 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5141 rpi_hdr = NULL;
5142 goto err_free_coherent;
5143 }
5144
5145 /* Save the rpi header data for cleanup later. */
5146 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5147 if (!rpi_hdr)
5148 goto err_free_coherent;
5149
5150 rpi_hdr->dmabuf = dmabuf;
5151 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5152 rpi_hdr->page_count = 1;
5153 spin_lock_irq(&phba->hbalock);
5154
5155 /* The rpi_hdr stores the logical index only. */
5156 rpi_hdr->start_rpi = curr_rpi_range;
5157 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5158
5159 /*
5160 * The next_rpi stores the next logical module-64 rpi value used
5161 * to post physical rpis in subsequent rpi postings.
5162 */
5163 phba->sli4_hba.next_rpi += rpi_count;
5164 spin_unlock_irq(&phba->hbalock);
5165 return rpi_hdr;
5166
5167 err_free_coherent:
5168 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5169 dmabuf->virt, dmabuf->phys);
5170 err_free_dmabuf:
5171 kfree(dmabuf);
5172 return NULL;
5173 }
5174
5175 /**
5176 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5177 * @phba: pointer to lpfc hba data structure.
5178 *
5179 * This routine is invoked to remove all memory resources allocated
5180 * to support rpis for SLI4 ports not supporting extents. This routine
5181 * presumes the caller has released all rpis consumed by fabric or port
5182 * logins and is prepared to have the header pages removed.
5183 **/
5184 void
5185 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5186 {
5187 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5188
5189 if (!phba->sli4_hba.rpi_hdrs_in_use)
5190 goto exit;
5191
5192 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5193 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5194 list_del(&rpi_hdr->list);
5195 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5196 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5197 kfree(rpi_hdr->dmabuf);
5198 kfree(rpi_hdr);
5199 }
5200 exit:
5201 /* There are no rpis available to the port now. */
5202 phba->sli4_hba.next_rpi = 0;
5203 }
5204
5205 /**
5206 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5207 * @pdev: pointer to pci device data structure.
5208 *
5209 * This routine is invoked to allocate the driver hba data structure for an
5210 * HBA device. If the allocation is successful, the phba reference to the
5211 * PCI device data structure is set.
5212 *
5213 * Return codes
5214 * pointer to @phba - successful
5215 * NULL - error
5216 **/
5217 static struct lpfc_hba *
5218 lpfc_hba_alloc(struct pci_dev *pdev)
5219 {
5220 struct lpfc_hba *phba;
5221
5222 /* Allocate memory for HBA structure */
5223 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5224 if (!phba) {
5225 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5226 return NULL;
5227 }
5228
5229 /* Set reference to PCI device in HBA structure */
5230 phba->pcidev = pdev;
5231
5232 /* Assign an unused board number */
5233 phba->brd_no = lpfc_get_instance();
5234 if (phba->brd_no < 0) {
5235 kfree(phba);
5236 return NULL;
5237 }
5238
5239 spin_lock_init(&phba->ct_ev_lock);
5240 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5241
5242 return phba;
5243 }
5244
5245 /**
5246 * lpfc_hba_free - Free driver hba data structure with a device.
5247 * @phba: pointer to lpfc hba data structure.
5248 *
5249 * This routine is invoked to free the driver hba data structure with an
5250 * HBA device.
5251 **/
5252 static void
5253 lpfc_hba_free(struct lpfc_hba *phba)
5254 {
5255 /* Release the driver assigned board number */
5256 idr_remove(&lpfc_hba_index, phba->brd_no);
5257
5258 kfree(phba);
5259 return;
5260 }
5261
5262 /**
5263 * lpfc_create_shost - Create hba physical port with associated scsi host.
5264 * @phba: pointer to lpfc hba data structure.
5265 *
5266 * This routine is invoked to create HBA physical port and associate a SCSI
5267 * host with it.
5268 *
5269 * Return codes
5270 * 0 - successful
5271 * other values - error
5272 **/
5273 static int
5274 lpfc_create_shost(struct lpfc_hba *phba)
5275 {
5276 struct lpfc_vport *vport;
5277 struct Scsi_Host *shost;
5278
5279 /* Initialize HBA FC structure */
5280 phba->fc_edtov = FF_DEF_EDTOV;
5281 phba->fc_ratov = FF_DEF_RATOV;
5282 phba->fc_altov = FF_DEF_ALTOV;
5283 phba->fc_arbtov = FF_DEF_ARBTOV;
5284
5285 atomic_set(&phba->sdev_cnt, 0);
5286 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5287 if (!vport)
5288 return -ENODEV;
5289
5290 shost = lpfc_shost_from_vport(vport);
5291 phba->pport = vport;
5292 lpfc_debugfs_initialize(vport);
5293 /* Put reference to SCSI host to driver's device private data */
5294 pci_set_drvdata(phba->pcidev, shost);
5295
5296 return 0;
5297 }
5298
5299 /**
5300 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5301 * @phba: pointer to lpfc hba data structure.
5302 *
5303 * This routine is invoked to destroy HBA physical port and the associated
5304 * SCSI host.
5305 **/
5306 static void
5307 lpfc_destroy_shost(struct lpfc_hba *phba)
5308 {
5309 struct lpfc_vport *vport = phba->pport;
5310
5311 /* Destroy physical port that associated with the SCSI host */
5312 destroy_port(vport);
5313
5314 return;
5315 }
5316
5317 /**
5318 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5319 * @phba: pointer to lpfc hba data structure.
5320 * @shost: the shost to be used to detect Block guard settings.
5321 *
5322 * This routine sets up the local Block guard protocol settings for @shost.
5323 * This routine also allocates memory for debugging bg buffers.
5324 **/
5325 static void
5326 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5327 {
5328 int pagecnt = 10;
5329 if (lpfc_prot_mask && lpfc_prot_guard) {
5330 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5331 "1478 Registering BlockGuard with the "
5332 "SCSI layer\n");
5333 scsi_host_set_prot(shost, lpfc_prot_mask);
5334 scsi_host_set_guard(shost, lpfc_prot_guard);
5335 }
5336 if (!_dump_buf_data) {
5337 while (pagecnt) {
5338 spin_lock_init(&_dump_buf_lock);
5339 _dump_buf_data =
5340 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5341 if (_dump_buf_data) {
5342 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5343 "9043 BLKGRD: allocated %d pages for "
5344 "_dump_buf_data at 0x%p\n",
5345 (1 << pagecnt), _dump_buf_data);
5346 _dump_buf_data_order = pagecnt;
5347 memset(_dump_buf_data, 0,
5348 ((1 << PAGE_SHIFT) << pagecnt));
5349 break;
5350 } else
5351 --pagecnt;
5352 }
5353 if (!_dump_buf_data_order)
5354 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5355 "9044 BLKGRD: ERROR unable to allocate "
5356 "memory for hexdump\n");
5357 } else
5358 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5359 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5360 "\n", _dump_buf_data);
5361 if (!_dump_buf_dif) {
5362 while (pagecnt) {
5363 _dump_buf_dif =
5364 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5365 if (_dump_buf_dif) {
5366 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5367 "9046 BLKGRD: allocated %d pages for "
5368 "_dump_buf_dif at 0x%p\n",
5369 (1 << pagecnt), _dump_buf_dif);
5370 _dump_buf_dif_order = pagecnt;
5371 memset(_dump_buf_dif, 0,
5372 ((1 << PAGE_SHIFT) << pagecnt));
5373 break;
5374 } else
5375 --pagecnt;
5376 }
5377 if (!_dump_buf_dif_order)
5378 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5379 "9047 BLKGRD: ERROR unable to allocate "
5380 "memory for hexdump\n");
5381 } else
5382 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5383 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5384 _dump_buf_dif);
5385 }
5386
5387 /**
5388 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5389 * @phba: pointer to lpfc hba data structure.
5390 *
5391 * This routine is invoked to perform all the necessary post initialization
5392 * setup for the device.
5393 **/
5394 static void
5395 lpfc_post_init_setup(struct lpfc_hba *phba)
5396 {
5397 struct Scsi_Host *shost;
5398 struct lpfc_adapter_event_header adapter_event;
5399
5400 /* Get the default values for Model Name and Description */
5401 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5402
5403 /*
5404 * hba setup may have changed the hba_queue_depth so we need to
5405 * adjust the value of can_queue.
5406 */
5407 shost = pci_get_drvdata(phba->pcidev);
5408 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5409 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5410 lpfc_setup_bg(phba, shost);
5411
5412 lpfc_host_attrib_init(shost);
5413
5414 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5415 spin_lock_irq(shost->host_lock);
5416 lpfc_poll_start_timer(phba);
5417 spin_unlock_irq(shost->host_lock);
5418 }
5419
5420 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5421 "0428 Perform SCSI scan\n");
5422 /* Send board arrival event to upper layer */
5423 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5424 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5425 fc_host_post_vendor_event(shost, fc_get_event_number(),
5426 sizeof(adapter_event),
5427 (char *) &adapter_event,
5428 LPFC_NL_VENDOR_ID);
5429 return;
5430 }
5431
5432 /**
5433 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5434 * @phba: pointer to lpfc hba data structure.
5435 *
5436 * This routine is invoked to set up the PCI device memory space for device
5437 * with SLI-3 interface spec.
5438 *
5439 * Return codes
5440 * 0 - successful
5441 * other values - error
5442 **/
5443 static int
5444 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5445 {
5446 struct pci_dev *pdev;
5447 unsigned long bar0map_len, bar2map_len;
5448 int i, hbq_count;
5449 void *ptr;
5450 int error = -ENODEV;
5451
5452 /* Obtain PCI device reference */
5453 if (!phba->pcidev)
5454 return error;
5455 else
5456 pdev = phba->pcidev;
5457
5458 /* Set the device DMA mask size */
5459 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5460 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5461 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5462 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5463 return error;
5464 }
5465 }
5466
5467 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5468 * required by each mapping.
5469 */
5470 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5471 bar0map_len = pci_resource_len(pdev, 0);
5472
5473 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5474 bar2map_len = pci_resource_len(pdev, 2);
5475
5476 /* Map HBA SLIM to a kernel virtual address. */
5477 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5478 if (!phba->slim_memmap_p) {
5479 dev_printk(KERN_ERR, &pdev->dev,
5480 "ioremap failed for SLIM memory.\n");
5481 goto out;
5482 }
5483
5484 /* Map HBA Control Registers to a kernel virtual address. */
5485 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5486 if (!phba->ctrl_regs_memmap_p) {
5487 dev_printk(KERN_ERR, &pdev->dev,
5488 "ioremap failed for HBA control registers.\n");
5489 goto out_iounmap_slim;
5490 }
5491
5492 /* Allocate memory for SLI-2 structures */
5493 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5494 SLI2_SLIM_SIZE,
5495 &phba->slim2p.phys,
5496 GFP_KERNEL);
5497 if (!phba->slim2p.virt)
5498 goto out_iounmap;
5499
5500 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5501 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5502 phba->mbox_ext = (phba->slim2p.virt +
5503 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5504 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5505 phba->IOCBs = (phba->slim2p.virt +
5506 offsetof(struct lpfc_sli2_slim, IOCBs));
5507
5508 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5509 lpfc_sli_hbq_size(),
5510 &phba->hbqslimp.phys,
5511 GFP_KERNEL);
5512 if (!phba->hbqslimp.virt)
5513 goto out_free_slim;
5514
5515 hbq_count = lpfc_sli_hbq_count();
5516 ptr = phba->hbqslimp.virt;
5517 for (i = 0; i < hbq_count; ++i) {
5518 phba->hbqs[i].hbq_virt = ptr;
5519 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5520 ptr += (lpfc_hbq_defs[i]->entry_count *
5521 sizeof(struct lpfc_hbq_entry));
5522 }
5523 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5524 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5525
5526 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5527
5528 INIT_LIST_HEAD(&phba->rb_pend_list);
5529
5530 phba->MBslimaddr = phba->slim_memmap_p;
5531 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5532 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5533 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5534 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5535
5536 return 0;
5537
5538 out_free_slim:
5539 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5540 phba->slim2p.virt, phba->slim2p.phys);
5541 out_iounmap:
5542 iounmap(phba->ctrl_regs_memmap_p);
5543 out_iounmap_slim:
5544 iounmap(phba->slim_memmap_p);
5545 out:
5546 return error;
5547 }
5548
5549 /**
5550 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5551 * @phba: pointer to lpfc hba data structure.
5552 *
5553 * This routine is invoked to unset the PCI device memory space for device
5554 * with SLI-3 interface spec.
5555 **/
5556 static void
5557 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5558 {
5559 struct pci_dev *pdev;
5560
5561 /* Obtain PCI device reference */
5562 if (!phba->pcidev)
5563 return;
5564 else
5565 pdev = phba->pcidev;
5566
5567 /* Free coherent DMA memory allocated */
5568 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5569 phba->hbqslimp.virt, phba->hbqslimp.phys);
5570 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5571 phba->slim2p.virt, phba->slim2p.phys);
5572
5573 /* I/O memory unmap */
5574 iounmap(phba->ctrl_regs_memmap_p);
5575 iounmap(phba->slim_memmap_p);
5576
5577 return;
5578 }
5579
5580 /**
5581 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5582 * @phba: pointer to lpfc hba data structure.
5583 *
5584 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5585 * done and check status.
5586 *
5587 * Return 0 if successful, otherwise -ENODEV.
5588 **/
5589 int
5590 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5591 {
5592 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5593 struct lpfc_register reg_data;
5594 int i, port_error = 0;
5595 uint32_t if_type;
5596
5597 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5598 memset(&reg_data, 0, sizeof(reg_data));
5599 if (!phba->sli4_hba.PSMPHRregaddr)
5600 return -ENODEV;
5601
5602 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5603 for (i = 0; i < 3000; i++) {
5604 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5605 &portsmphr_reg.word0) ||
5606 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5607 /* Port has a fatal POST error, break out */
5608 port_error = -ENODEV;
5609 break;
5610 }
5611 if (LPFC_POST_STAGE_PORT_READY ==
5612 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5613 break;
5614 msleep(10);
5615 }
5616
5617 /*
5618 * If there was a port error during POST, then don't proceed with
5619 * other register reads as the data may not be valid. Just exit.
5620 */
5621 if (port_error) {
5622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5623 "1408 Port Failed POST - portsmphr=0x%x, "
5624 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5625 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5626 portsmphr_reg.word0,
5627 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5628 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5629 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5630 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5631 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5632 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5633 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5634 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5635 } else {
5636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5637 "2534 Device Info: SLIFamily=0x%x, "
5638 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5639 "SLIHint_2=0x%x, FT=0x%x\n",
5640 bf_get(lpfc_sli_intf_sli_family,
5641 &phba->sli4_hba.sli_intf),
5642 bf_get(lpfc_sli_intf_slirev,
5643 &phba->sli4_hba.sli_intf),
5644 bf_get(lpfc_sli_intf_if_type,
5645 &phba->sli4_hba.sli_intf),
5646 bf_get(lpfc_sli_intf_sli_hint1,
5647 &phba->sli4_hba.sli_intf),
5648 bf_get(lpfc_sli_intf_sli_hint2,
5649 &phba->sli4_hba.sli_intf),
5650 bf_get(lpfc_sli_intf_func_type,
5651 &phba->sli4_hba.sli_intf));
5652 /*
5653 * Check for other Port errors during the initialization
5654 * process. Fail the load if the port did not come up
5655 * correctly.
5656 */
5657 if_type = bf_get(lpfc_sli_intf_if_type,
5658 &phba->sli4_hba.sli_intf);
5659 switch (if_type) {
5660 case LPFC_SLI_INTF_IF_TYPE_0:
5661 phba->sli4_hba.ue_mask_lo =
5662 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5663 phba->sli4_hba.ue_mask_hi =
5664 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5665 uerrlo_reg.word0 =
5666 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5667 uerrhi_reg.word0 =
5668 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5669 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5670 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5672 "1422 Unrecoverable Error "
5673 "Detected during POST "
5674 "uerr_lo_reg=0x%x, "
5675 "uerr_hi_reg=0x%x, "
5676 "ue_mask_lo_reg=0x%x, "
5677 "ue_mask_hi_reg=0x%x\n",
5678 uerrlo_reg.word0,
5679 uerrhi_reg.word0,
5680 phba->sli4_hba.ue_mask_lo,
5681 phba->sli4_hba.ue_mask_hi);
5682 port_error = -ENODEV;
5683 }
5684 break;
5685 case LPFC_SLI_INTF_IF_TYPE_2:
5686 /* Final checks. The port status should be clean. */
5687 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5688 &reg_data.word0) ||
5689 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5690 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5691 phba->work_status[0] =
5692 readl(phba->sli4_hba.u.if_type2.
5693 ERR1regaddr);
5694 phba->work_status[1] =
5695 readl(phba->sli4_hba.u.if_type2.
5696 ERR2regaddr);
5697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5698 "2888 Port Error Detected "
5699 "during POST: "
5700 "port status reg 0x%x, "
5701 "port_smphr reg 0x%x, "
5702 "error 1=0x%x, error 2=0x%x\n",
5703 reg_data.word0,
5704 portsmphr_reg.word0,
5705 phba->work_status[0],
5706 phba->work_status[1]);
5707 port_error = -ENODEV;
5708 }
5709 break;
5710 case LPFC_SLI_INTF_IF_TYPE_1:
5711 default:
5712 break;
5713 }
5714 }
5715 return port_error;
5716 }
5717
5718 /**
5719 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5720 * @phba: pointer to lpfc hba data structure.
5721 * @if_type: The SLI4 interface type getting configured.
5722 *
5723 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5724 * memory map.
5725 **/
5726 static void
5727 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5728 {
5729 switch (if_type) {
5730 case LPFC_SLI_INTF_IF_TYPE_0:
5731 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5732 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5733 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5734 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5735 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5736 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5737 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5738 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5739 phba->sli4_hba.SLIINTFregaddr =
5740 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5741 break;
5742 case LPFC_SLI_INTF_IF_TYPE_2:
5743 phba->sli4_hba.u.if_type2.ERR1regaddr =
5744 phba->sli4_hba.conf_regs_memmap_p +
5745 LPFC_CTL_PORT_ER1_OFFSET;
5746 phba->sli4_hba.u.if_type2.ERR2regaddr =
5747 phba->sli4_hba.conf_regs_memmap_p +
5748 LPFC_CTL_PORT_ER2_OFFSET;
5749 phba->sli4_hba.u.if_type2.CTRLregaddr =
5750 phba->sli4_hba.conf_regs_memmap_p +
5751 LPFC_CTL_PORT_CTL_OFFSET;
5752 phba->sli4_hba.u.if_type2.STATUSregaddr =
5753 phba->sli4_hba.conf_regs_memmap_p +
5754 LPFC_CTL_PORT_STA_OFFSET;
5755 phba->sli4_hba.SLIINTFregaddr =
5756 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5757 phba->sli4_hba.PSMPHRregaddr =
5758 phba->sli4_hba.conf_regs_memmap_p +
5759 LPFC_CTL_PORT_SEM_OFFSET;
5760 phba->sli4_hba.RQDBregaddr =
5761 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5762 phba->sli4_hba.WQDBregaddr =
5763 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5764 phba->sli4_hba.EQCQDBregaddr =
5765 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5766 phba->sli4_hba.MQDBregaddr =
5767 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5768 phba->sli4_hba.BMBXregaddr =
5769 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5770 break;
5771 case LPFC_SLI_INTF_IF_TYPE_1:
5772 default:
5773 dev_printk(KERN_ERR, &phba->pcidev->dev,
5774 "FATAL - unsupported SLI4 interface type - %d\n",
5775 if_type);
5776 break;
5777 }
5778 }
5779
5780 /**
5781 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5782 * @phba: pointer to lpfc hba data structure.
5783 *
5784 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5785 * memory map.
5786 **/
5787 static void
5788 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5789 {
5790 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5791 LPFC_SLIPORT_IF0_SMPHR;
5792 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5793 LPFC_HST_ISR0;
5794 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5795 LPFC_HST_IMR0;
5796 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5797 LPFC_HST_ISCR0;
5798 }
5799
5800 /**
5801 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5802 * @phba: pointer to lpfc hba data structure.
5803 * @vf: virtual function number
5804 *
5805 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5806 * based on the given viftual function number, @vf.
5807 *
5808 * Return 0 if successful, otherwise -ENODEV.
5809 **/
5810 static int
5811 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5812 {
5813 if (vf > LPFC_VIR_FUNC_MAX)
5814 return -ENODEV;
5815
5816 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5817 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5818 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5819 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5820 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5821 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5822 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5823 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5824 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5825 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5826 return 0;
5827 }
5828
5829 /**
5830 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5831 * @phba: pointer to lpfc hba data structure.
5832 *
5833 * This routine is invoked to create the bootstrap mailbox
5834 * region consistent with the SLI-4 interface spec. This
5835 * routine allocates all memory necessary to communicate
5836 * mailbox commands to the port and sets up all alignment
5837 * needs. No locks are expected to be held when calling
5838 * this routine.
5839 *
5840 * Return codes
5841 * 0 - successful
5842 * -ENOMEM - could not allocated memory.
5843 **/
5844 static int
5845 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5846 {
5847 uint32_t bmbx_size;
5848 struct lpfc_dmabuf *dmabuf;
5849 struct dma_address *dma_address;
5850 uint32_t pa_addr;
5851 uint64_t phys_addr;
5852
5853 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5854 if (!dmabuf)
5855 return -ENOMEM;
5856
5857 /*
5858 * The bootstrap mailbox region is comprised of 2 parts
5859 * plus an alignment restriction of 16 bytes.
5860 */
5861 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5862 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5863 bmbx_size,
5864 &dmabuf->phys,
5865 GFP_KERNEL);
5866 if (!dmabuf->virt) {
5867 kfree(dmabuf);
5868 return -ENOMEM;
5869 }
5870 memset(dmabuf->virt, 0, bmbx_size);
5871
5872 /*
5873 * Initialize the bootstrap mailbox pointers now so that the register
5874 * operations are simple later. The mailbox dma address is required
5875 * to be 16-byte aligned. Also align the virtual memory as each
5876 * maibox is copied into the bmbx mailbox region before issuing the
5877 * command to the port.
5878 */
5879 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5880 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5881
5882 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5883 LPFC_ALIGN_16_BYTE);
5884 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5885 LPFC_ALIGN_16_BYTE);
5886
5887 /*
5888 * Set the high and low physical addresses now. The SLI4 alignment
5889 * requirement is 16 bytes and the mailbox is posted to the port
5890 * as two 30-bit addresses. The other data is a bit marking whether
5891 * the 30-bit address is the high or low address.
5892 * Upcast bmbx aphys to 64bits so shift instruction compiles
5893 * clean on 32 bit machines.
5894 */
5895 dma_address = &phba->sli4_hba.bmbx.dma_address;
5896 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5897 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5898 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5899 LPFC_BMBX_BIT1_ADDR_HI);
5900
5901 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5902 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5903 LPFC_BMBX_BIT1_ADDR_LO);
5904 return 0;
5905 }
5906
5907 /**
5908 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5909 * @phba: pointer to lpfc hba data structure.
5910 *
5911 * This routine is invoked to teardown the bootstrap mailbox
5912 * region and release all host resources. This routine requires
5913 * the caller to ensure all mailbox commands recovered, no
5914 * additional mailbox comands are sent, and interrupts are disabled
5915 * before calling this routine.
5916 *
5917 **/
5918 static void
5919 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5920 {
5921 dma_free_coherent(&phba->pcidev->dev,
5922 phba->sli4_hba.bmbx.bmbx_size,
5923 phba->sli4_hba.bmbx.dmabuf->virt,
5924 phba->sli4_hba.bmbx.dmabuf->phys);
5925
5926 kfree(phba->sli4_hba.bmbx.dmabuf);
5927 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5928 }
5929
5930 /**
5931 * lpfc_sli4_read_config - Get the config parameters.
5932 * @phba: pointer to lpfc hba data structure.
5933 *
5934 * This routine is invoked to read the configuration parameters from the HBA.
5935 * The configuration parameters are used to set the base and maximum values
5936 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5937 * allocation for the port.
5938 *
5939 * Return codes
5940 * 0 - successful
5941 * -ENOMEM - No available memory
5942 * -EIO - The mailbox failed to complete successfully.
5943 **/
5944 static int
5945 lpfc_sli4_read_config(struct lpfc_hba *phba)
5946 {
5947 LPFC_MBOXQ_t *pmb;
5948 struct lpfc_mbx_read_config *rd_config;
5949 union lpfc_sli4_cfg_shdr *shdr;
5950 uint32_t shdr_status, shdr_add_status;
5951 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5952 struct lpfc_rsrc_desc_fcfcoe *desc;
5953 uint32_t desc_count;
5954 int length, i, rc = 0;
5955
5956 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5957 if (!pmb) {
5958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5959 "2011 Unable to allocate memory for issuing "
5960 "SLI_CONFIG_SPECIAL mailbox command\n");
5961 return -ENOMEM;
5962 }
5963
5964 lpfc_read_config(phba, pmb);
5965
5966 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5967 if (rc != MBX_SUCCESS) {
5968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5969 "2012 Mailbox failed , mbxCmd x%x "
5970 "READ_CONFIG, mbxStatus x%x\n",
5971 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5972 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5973 rc = -EIO;
5974 } else {
5975 rd_config = &pmb->u.mqe.un.rd_config;
5976 phba->sli4_hba.extents_in_use =
5977 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
5978 phba->sli4_hba.max_cfg_param.max_xri =
5979 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5980 phba->sli4_hba.max_cfg_param.xri_base =
5981 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5982 phba->sli4_hba.max_cfg_param.max_vpi =
5983 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5984 phba->sli4_hba.max_cfg_param.vpi_base =
5985 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5986 phba->sli4_hba.max_cfg_param.max_rpi =
5987 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5988 phba->sli4_hba.max_cfg_param.rpi_base =
5989 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5990 phba->sli4_hba.max_cfg_param.max_vfi =
5991 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5992 phba->sli4_hba.max_cfg_param.vfi_base =
5993 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5994 phba->sli4_hba.max_cfg_param.max_fcfi =
5995 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5996 phba->sli4_hba.max_cfg_param.max_eq =
5997 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5998 phba->sli4_hba.max_cfg_param.max_rq =
5999 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6000 phba->sli4_hba.max_cfg_param.max_wq =
6001 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6002 phba->sli4_hba.max_cfg_param.max_cq =
6003 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6004 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6005 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6006 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6007 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6008 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
6009 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6010 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6011 phba->max_vports = phba->max_vpi;
6012 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6013 "2003 cfg params Extents? %d "
6014 "XRI(B:%d M:%d), "
6015 "VPI(B:%d M:%d) "
6016 "VFI(B:%d M:%d) "
6017 "RPI(B:%d M:%d) "
6018 "FCFI(Count:%d)\n",
6019 phba->sli4_hba.extents_in_use,
6020 phba->sli4_hba.max_cfg_param.xri_base,
6021 phba->sli4_hba.max_cfg_param.max_xri,
6022 phba->sli4_hba.max_cfg_param.vpi_base,
6023 phba->sli4_hba.max_cfg_param.max_vpi,
6024 phba->sli4_hba.max_cfg_param.vfi_base,
6025 phba->sli4_hba.max_cfg_param.max_vfi,
6026 phba->sli4_hba.max_cfg_param.rpi_base,
6027 phba->sli4_hba.max_cfg_param.max_rpi,
6028 phba->sli4_hba.max_cfg_param.max_fcfi);
6029 }
6030
6031 if (rc)
6032 goto read_cfg_out;
6033
6034 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6035 if (phba->cfg_hba_queue_depth >
6036 (phba->sli4_hba.max_cfg_param.max_xri -
6037 lpfc_sli4_get_els_iocb_cnt(phba)))
6038 phba->cfg_hba_queue_depth =
6039 phba->sli4_hba.max_cfg_param.max_xri -
6040 lpfc_sli4_get_els_iocb_cnt(phba);
6041
6042 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6043 LPFC_SLI_INTF_IF_TYPE_2)
6044 goto read_cfg_out;
6045
6046 /* get the pf# and vf# for SLI4 if_type 2 port */
6047 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6048 sizeof(struct lpfc_sli4_cfg_mhdr));
6049 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6050 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6051 length, LPFC_SLI4_MBX_EMBED);
6052
6053 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6054 shdr = (union lpfc_sli4_cfg_shdr *)
6055 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6056 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6057 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6058 if (rc || shdr_status || shdr_add_status) {
6059 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6060 "3026 Mailbox failed , mbxCmd x%x "
6061 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6062 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6063 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6064 rc = -EIO;
6065 goto read_cfg_out;
6066 }
6067
6068 /* search for fc_fcoe resrouce descriptor */
6069 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6070 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6071
6072 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6073 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6074 &get_func_cfg->func_cfg.desc[i];
6075 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6076 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6077 phba->sli4_hba.iov.pf_number =
6078 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6079 phba->sli4_hba.iov.vf_number =
6080 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6081 break;
6082 }
6083 }
6084
6085 if (i < LPFC_RSRC_DESC_MAX_NUM)
6086 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6087 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6088 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6089 phba->sli4_hba.iov.vf_number);
6090 else {
6091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6092 "3028 GET_FUNCTION_CONFIG: failed to find "
6093 "Resrouce Descriptor:x%x\n",
6094 LPFC_RSRC_DESC_TYPE_FCFCOE);
6095 rc = -EIO;
6096 }
6097
6098 read_cfg_out:
6099 mempool_free(pmb, phba->mbox_mem_pool);
6100 return rc;
6101 }
6102
6103 /**
6104 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6105 * @phba: pointer to lpfc hba data structure.
6106 *
6107 * This routine is invoked to setup the port-side endian order when
6108 * the port if_type is 0. This routine has no function for other
6109 * if_types.
6110 *
6111 * Return codes
6112 * 0 - successful
6113 * -ENOMEM - No available memory
6114 * -EIO - The mailbox failed to complete successfully.
6115 **/
6116 static int
6117 lpfc_setup_endian_order(struct lpfc_hba *phba)
6118 {
6119 LPFC_MBOXQ_t *mboxq;
6120 uint32_t if_type, rc = 0;
6121 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6122 HOST_ENDIAN_HIGH_WORD1};
6123
6124 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6125 switch (if_type) {
6126 case LPFC_SLI_INTF_IF_TYPE_0:
6127 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6128 GFP_KERNEL);
6129 if (!mboxq) {
6130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6131 "0492 Unable to allocate memory for "
6132 "issuing SLI_CONFIG_SPECIAL mailbox "
6133 "command\n");
6134 return -ENOMEM;
6135 }
6136
6137 /*
6138 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6139 * two words to contain special data values and no other data.
6140 */
6141 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6142 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6143 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6144 if (rc != MBX_SUCCESS) {
6145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6146 "0493 SLI_CONFIG_SPECIAL mailbox "
6147 "failed with status x%x\n",
6148 rc);
6149 rc = -EIO;
6150 }
6151 mempool_free(mboxq, phba->mbox_mem_pool);
6152 break;
6153 case LPFC_SLI_INTF_IF_TYPE_2:
6154 case LPFC_SLI_INTF_IF_TYPE_1:
6155 default:
6156 break;
6157 }
6158 return rc;
6159 }
6160
6161 /**
6162 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6163 * @phba: pointer to lpfc hba data structure.
6164 *
6165 * This routine is invoked to check the user settable queue counts for EQs and
6166 * CQs. after this routine is called the counts will be set to valid values that
6167 * adhere to the constraints of the system's interrupt vectors and the port's
6168 * queue resources.
6169 *
6170 * Return codes
6171 * 0 - successful
6172 * -ENOMEM - No available memory
6173 **/
6174 static int
6175 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6176 {
6177 int cfg_fcp_wq_count;
6178 int cfg_fcp_eq_count;
6179
6180 /*
6181 * Sanity check for confiugred queue parameters against the run-time
6182 * device parameters
6183 */
6184
6185 /* Sanity check on FCP fast-path WQ parameters */
6186 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6187 if (cfg_fcp_wq_count >
6188 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6189 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6190 LPFC_SP_WQN_DEF;
6191 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6193 "2581 Not enough WQs (%d) from "
6194 "the pci function for supporting "
6195 "FCP WQs (%d)\n",
6196 phba->sli4_hba.max_cfg_param.max_wq,
6197 phba->cfg_fcp_wq_count);
6198 goto out_error;
6199 }
6200 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6201 "2582 Not enough WQs (%d) from the pci "
6202 "function for supporting the requested "
6203 "FCP WQs (%d), the actual FCP WQs can "
6204 "be supported: %d\n",
6205 phba->sli4_hba.max_cfg_param.max_wq,
6206 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6207 }
6208 /* The actual number of FCP work queues adopted */
6209 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6210
6211 /* Sanity check on FCP fast-path EQ parameters */
6212 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6213 if (cfg_fcp_eq_count >
6214 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6215 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6216 LPFC_SP_EQN_DEF;
6217 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6219 "2574 Not enough EQs (%d) from the "
6220 "pci function for supporting FCP "
6221 "EQs (%d)\n",
6222 phba->sli4_hba.max_cfg_param.max_eq,
6223 phba->cfg_fcp_eq_count);
6224 goto out_error;
6225 }
6226 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6227 "2575 Not enough EQs (%d) from the pci "
6228 "function for supporting the requested "
6229 "FCP EQs (%d), the actual FCP EQs can "
6230 "be supported: %d\n",
6231 phba->sli4_hba.max_cfg_param.max_eq,
6232 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6233 }
6234 /* It does not make sense to have more EQs than WQs */
6235 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6236 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6237 "2593 The FCP EQ count(%d) cannot be greater "
6238 "than the FCP WQ count(%d), limiting the "
6239 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6240 phba->cfg_fcp_wq_count,
6241 phba->cfg_fcp_wq_count);
6242 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6243 }
6244 /* The actual number of FCP event queues adopted */
6245 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6246 /* The overall number of event queues used */
6247 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6248
6249 /* Get EQ depth from module parameter, fake the default for now */
6250 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6251 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6252
6253 /* Get CQ depth from module parameter, fake the default for now */
6254 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6255 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6256
6257 return 0;
6258 out_error:
6259 return -ENOMEM;
6260 }
6261
6262 /**
6263 * lpfc_sli4_queue_create - Create all the SLI4 queues
6264 * @phba: pointer to lpfc hba data structure.
6265 *
6266 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6267 * operation. For each SLI4 queue type, the parameters such as queue entry
6268 * count (queue depth) shall be taken from the module parameter. For now,
6269 * we just use some constant number as place holder.
6270 *
6271 * Return codes
6272 * 0 - sucessful
6273 * -ENOMEM - No availble memory
6274 * -EIO - The mailbox failed to complete successfully.
6275 **/
6276 int
6277 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6278 {
6279 struct lpfc_queue *qdesc;
6280 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6281
6282 /*
6283 * Create Event Queues (EQs)
6284 */
6285
6286 /* Create slow path event queue */
6287 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6288 phba->sli4_hba.eq_ecount);
6289 if (!qdesc) {
6290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6291 "0496 Failed allocate slow-path EQ\n");
6292 goto out_error;
6293 }
6294 phba->sli4_hba.sp_eq = qdesc;
6295
6296 /*
6297 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be
6298 * zero whenever there is exactly one interrupt vector. This is not
6299 * an error.
6300 */
6301 if (phba->cfg_fcp_eq_count) {
6302 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6303 phba->cfg_fcp_eq_count), GFP_KERNEL);
6304 if (!phba->sli4_hba.fp_eq) {
6305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6306 "2576 Failed allocate memory for "
6307 "fast-path EQ record array\n");
6308 goto out_free_sp_eq;
6309 }
6310 }
6311 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6312 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6313 phba->sli4_hba.eq_ecount);
6314 if (!qdesc) {
6315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6316 "0497 Failed allocate fast-path EQ\n");
6317 goto out_free_fp_eq;
6318 }
6319 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6320 }
6321
6322 /*
6323 * Create Complete Queues (CQs)
6324 */
6325
6326 /* Create slow-path Mailbox Command Complete Queue */
6327 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6328 phba->sli4_hba.cq_ecount);
6329 if (!qdesc) {
6330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6331 "0500 Failed allocate slow-path mailbox CQ\n");
6332 goto out_free_fp_eq;
6333 }
6334 phba->sli4_hba.mbx_cq = qdesc;
6335
6336 /* Create slow-path ELS Complete Queue */
6337 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6338 phba->sli4_hba.cq_ecount);
6339 if (!qdesc) {
6340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6341 "0501 Failed allocate slow-path ELS CQ\n");
6342 goto out_free_mbx_cq;
6343 }
6344 phba->sli4_hba.els_cq = qdesc;
6345
6346
6347 /*
6348 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6349 * If there are no FCP EQs then create exactly one FCP CQ.
6350 */
6351 if (phba->cfg_fcp_eq_count)
6352 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6353 phba->cfg_fcp_eq_count),
6354 GFP_KERNEL);
6355 else
6356 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
6357 GFP_KERNEL);
6358 if (!phba->sli4_hba.fcp_cq) {
6359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6360 "2577 Failed allocate memory for fast-path "
6361 "CQ record array\n");
6362 goto out_free_els_cq;
6363 }
6364 fcp_cqidx = 0;
6365 do {
6366 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6367 phba->sli4_hba.cq_ecount);
6368 if (!qdesc) {
6369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6370 "0499 Failed allocate fast-path FCP "
6371 "CQ (%d)\n", fcp_cqidx);
6372 goto out_free_fcp_cq;
6373 }
6374 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6375 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6376
6377 /* Create Mailbox Command Queue */
6378 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6379 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6380
6381 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6382 phba->sli4_hba.mq_ecount);
6383 if (!qdesc) {
6384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6385 "0505 Failed allocate slow-path MQ\n");
6386 goto out_free_fcp_cq;
6387 }
6388 phba->sli4_hba.mbx_wq = qdesc;
6389
6390 /*
6391 * Create all the Work Queues (WQs)
6392 */
6393 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6394 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6395
6396 /* Create slow-path ELS Work Queue */
6397 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6398 phba->sli4_hba.wq_ecount);
6399 if (!qdesc) {
6400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6401 "0504 Failed allocate slow-path ELS WQ\n");
6402 goto out_free_mbx_wq;
6403 }
6404 phba->sli4_hba.els_wq = qdesc;
6405
6406 /* Create fast-path FCP Work Queue(s) */
6407 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6408 phba->cfg_fcp_wq_count), GFP_KERNEL);
6409 if (!phba->sli4_hba.fcp_wq) {
6410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6411 "2578 Failed allocate memory for fast-path "
6412 "WQ record array\n");
6413 goto out_free_els_wq;
6414 }
6415 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6416 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6417 phba->sli4_hba.wq_ecount);
6418 if (!qdesc) {
6419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6420 "0503 Failed allocate fast-path FCP "
6421 "WQ (%d)\n", fcp_wqidx);
6422 goto out_free_fcp_wq;
6423 }
6424 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6425 }
6426
6427 /*
6428 * Create Receive Queue (RQ)
6429 */
6430 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6431 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6432
6433 /* Create Receive Queue for header */
6434 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6435 phba->sli4_hba.rq_ecount);
6436 if (!qdesc) {
6437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6438 "0506 Failed allocate receive HRQ\n");
6439 goto out_free_fcp_wq;
6440 }
6441 phba->sli4_hba.hdr_rq = qdesc;
6442
6443 /* Create Receive Queue for data */
6444 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6445 phba->sli4_hba.rq_ecount);
6446 if (!qdesc) {
6447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6448 "0507 Failed allocate receive DRQ\n");
6449 goto out_free_hdr_rq;
6450 }
6451 phba->sli4_hba.dat_rq = qdesc;
6452
6453 return 0;
6454
6455 out_free_hdr_rq:
6456 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6457 phba->sli4_hba.hdr_rq = NULL;
6458 out_free_fcp_wq:
6459 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6460 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6461 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6462 }
6463 kfree(phba->sli4_hba.fcp_wq);
6464 out_free_els_wq:
6465 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6466 phba->sli4_hba.els_wq = NULL;
6467 out_free_mbx_wq:
6468 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6469 phba->sli4_hba.mbx_wq = NULL;
6470 out_free_fcp_cq:
6471 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6472 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6473 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6474 }
6475 kfree(phba->sli4_hba.fcp_cq);
6476 out_free_els_cq:
6477 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6478 phba->sli4_hba.els_cq = NULL;
6479 out_free_mbx_cq:
6480 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6481 phba->sli4_hba.mbx_cq = NULL;
6482 out_free_fp_eq:
6483 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6484 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6485 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6486 }
6487 kfree(phba->sli4_hba.fp_eq);
6488 out_free_sp_eq:
6489 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6490 phba->sli4_hba.sp_eq = NULL;
6491 out_error:
6492 return -ENOMEM;
6493 }
6494
6495 /**
6496 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6497 * @phba: pointer to lpfc hba data structure.
6498 *
6499 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6500 * operation.
6501 *
6502 * Return codes
6503 * 0 - successful
6504 * -ENOMEM - No available memory
6505 * -EIO - The mailbox failed to complete successfully.
6506 **/
6507 void
6508 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6509 {
6510 int fcp_qidx;
6511
6512 /* Release mailbox command work queue */
6513 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6514 phba->sli4_hba.mbx_wq = NULL;
6515
6516 /* Release ELS work queue */
6517 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6518 phba->sli4_hba.els_wq = NULL;
6519
6520 /* Release FCP work queue */
6521 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6522 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6523 kfree(phba->sli4_hba.fcp_wq);
6524 phba->sli4_hba.fcp_wq = NULL;
6525
6526 /* Release unsolicited receive queue */
6527 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6528 phba->sli4_hba.hdr_rq = NULL;
6529 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6530 phba->sli4_hba.dat_rq = NULL;
6531
6532 /* Release ELS complete queue */
6533 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6534 phba->sli4_hba.els_cq = NULL;
6535
6536 /* Release mailbox command complete queue */
6537 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6538 phba->sli4_hba.mbx_cq = NULL;
6539
6540 /* Release FCP response complete queue */
6541 fcp_qidx = 0;
6542 do
6543 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6544 while (++fcp_qidx < phba->cfg_fcp_eq_count);
6545 kfree(phba->sli4_hba.fcp_cq);
6546 phba->sli4_hba.fcp_cq = NULL;
6547
6548 /* Release fast-path event queue */
6549 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6550 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6551 kfree(phba->sli4_hba.fp_eq);
6552 phba->sli4_hba.fp_eq = NULL;
6553
6554 /* Release slow-path event queue */
6555 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6556 phba->sli4_hba.sp_eq = NULL;
6557
6558 return;
6559 }
6560
6561 /**
6562 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6563 * @phba: pointer to lpfc hba data structure.
6564 *
6565 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6566 * operation.
6567 *
6568 * Return codes
6569 * 0 - successful
6570 * -ENOMEM - No available memory
6571 * -EIO - The mailbox failed to complete successfully.
6572 **/
6573 int
6574 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6575 {
6576 int rc = -ENOMEM;
6577 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6578 int fcp_cq_index = 0;
6579
6580 /*
6581 * Set up Event Queues (EQs)
6582 */
6583
6584 /* Set up slow-path event queue */
6585 if (!phba->sli4_hba.sp_eq) {
6586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6587 "0520 Slow-path EQ not allocated\n");
6588 goto out_error;
6589 }
6590 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6591 LPFC_SP_DEF_IMAX);
6592 if (rc) {
6593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6594 "0521 Failed setup of slow-path EQ: "
6595 "rc = 0x%x\n", rc);
6596 goto out_error;
6597 }
6598 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6599 "2583 Slow-path EQ setup: queue-id=%d\n",
6600 phba->sli4_hba.sp_eq->queue_id);
6601
6602 /* Set up fast-path event queue */
6603 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6604 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6606 "0522 Fast-path EQ (%d) not "
6607 "allocated\n", fcp_eqidx);
6608 goto out_destroy_fp_eq;
6609 }
6610 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6611 phba->cfg_fcp_imax);
6612 if (rc) {
6613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6614 "0523 Failed setup of fast-path EQ "
6615 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6616 goto out_destroy_fp_eq;
6617 }
6618 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6619 "2584 Fast-path EQ setup: "
6620 "queue[%d]-id=%d\n", fcp_eqidx,
6621 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6622 }
6623
6624 /*
6625 * Set up Complete Queues (CQs)
6626 */
6627
6628 /* Set up slow-path MBOX Complete Queue as the first CQ */
6629 if (!phba->sli4_hba.mbx_cq) {
6630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6631 "0528 Mailbox CQ not allocated\n");
6632 goto out_destroy_fp_eq;
6633 }
6634 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6635 LPFC_MCQ, LPFC_MBOX);
6636 if (rc) {
6637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6638 "0529 Failed setup of slow-path mailbox CQ: "
6639 "rc = 0x%x\n", rc);
6640 goto out_destroy_fp_eq;
6641 }
6642 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6643 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6644 phba->sli4_hba.mbx_cq->queue_id,
6645 phba->sli4_hba.sp_eq->queue_id);
6646
6647 /* Set up slow-path ELS Complete Queue */
6648 if (!phba->sli4_hba.els_cq) {
6649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6650 "0530 ELS CQ not allocated\n");
6651 goto out_destroy_mbx_cq;
6652 }
6653 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6654 LPFC_WCQ, LPFC_ELS);
6655 if (rc) {
6656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6657 "0531 Failed setup of slow-path ELS CQ: "
6658 "rc = 0x%x\n", rc);
6659 goto out_destroy_mbx_cq;
6660 }
6661 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6662 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6663 phba->sli4_hba.els_cq->queue_id,
6664 phba->sli4_hba.sp_eq->queue_id);
6665
6666 /* Set up fast-path FCP Response Complete Queue */
6667 fcp_cqidx = 0;
6668 do {
6669 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6671 "0526 Fast-path FCP CQ (%d) not "
6672 "allocated\n", fcp_cqidx);
6673 goto out_destroy_fcp_cq;
6674 }
6675 if (phba->cfg_fcp_eq_count)
6676 rc = lpfc_cq_create(phba,
6677 phba->sli4_hba.fcp_cq[fcp_cqidx],
6678 phba->sli4_hba.fp_eq[fcp_cqidx],
6679 LPFC_WCQ, LPFC_FCP);
6680 else
6681 rc = lpfc_cq_create(phba,
6682 phba->sli4_hba.fcp_cq[fcp_cqidx],
6683 phba->sli4_hba.sp_eq,
6684 LPFC_WCQ, LPFC_FCP);
6685 if (rc) {
6686 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6687 "0527 Failed setup of fast-path FCP "
6688 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6689 goto out_destroy_fcp_cq;
6690 }
6691 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6692 "2588 FCP CQ setup: cq[%d]-id=%d, "
6693 "parent %seq[%d]-id=%d\n",
6694 fcp_cqidx,
6695 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6696 (phba->cfg_fcp_eq_count) ? "" : "sp_",
6697 fcp_cqidx,
6698 (phba->cfg_fcp_eq_count) ?
6699 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6700 phba->sli4_hba.sp_eq->queue_id);
6701 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6702
6703 /*
6704 * Set up all the Work Queues (WQs)
6705 */
6706
6707 /* Set up Mailbox Command Queue */
6708 if (!phba->sli4_hba.mbx_wq) {
6709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6710 "0538 Slow-path MQ not allocated\n");
6711 goto out_destroy_fcp_cq;
6712 }
6713 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6714 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6715 if (rc) {
6716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6717 "0539 Failed setup of slow-path MQ: "
6718 "rc = 0x%x\n", rc);
6719 goto out_destroy_fcp_cq;
6720 }
6721 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6722 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6723 phba->sli4_hba.mbx_wq->queue_id,
6724 phba->sli4_hba.mbx_cq->queue_id);
6725
6726 /* Set up slow-path ELS Work Queue */
6727 if (!phba->sli4_hba.els_wq) {
6728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6729 "0536 Slow-path ELS WQ not allocated\n");
6730 goto out_destroy_mbx_wq;
6731 }
6732 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6733 phba->sli4_hba.els_cq, LPFC_ELS);
6734 if (rc) {
6735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6736 "0537 Failed setup of slow-path ELS WQ: "
6737 "rc = 0x%x\n", rc);
6738 goto out_destroy_mbx_wq;
6739 }
6740 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6741 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6742 phba->sli4_hba.els_wq->queue_id,
6743 phba->sli4_hba.els_cq->queue_id);
6744
6745 /* Set up fast-path FCP Work Queue */
6746 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6747 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6749 "0534 Fast-path FCP WQ (%d) not "
6750 "allocated\n", fcp_wqidx);
6751 goto out_destroy_fcp_wq;
6752 }
6753 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6754 phba->sli4_hba.fcp_cq[fcp_cq_index],
6755 LPFC_FCP);
6756 if (rc) {
6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6758 "0535 Failed setup of fast-path FCP "
6759 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6760 goto out_destroy_fcp_wq;
6761 }
6762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6763 "2591 FCP WQ setup: wq[%d]-id=%d, "
6764 "parent cq[%d]-id=%d\n",
6765 fcp_wqidx,
6766 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6767 fcp_cq_index,
6768 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6769 /* Round robin FCP Work Queue's Completion Queue assignment */
6770 if (phba->cfg_fcp_eq_count)
6771 fcp_cq_index = ((fcp_cq_index + 1) %
6772 phba->cfg_fcp_eq_count);
6773 }
6774
6775 /*
6776 * Create Receive Queue (RQ)
6777 */
6778 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6780 "0540 Receive Queue not allocated\n");
6781 goto out_destroy_fcp_wq;
6782 }
6783
6784 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
6785 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
6786
6787 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6788 phba->sli4_hba.els_cq, LPFC_USOL);
6789 if (rc) {
6790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6791 "0541 Failed setup of Receive Queue: "
6792 "rc = 0x%x\n", rc);
6793 goto out_destroy_fcp_wq;
6794 }
6795
6796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6797 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6798 "parent cq-id=%d\n",
6799 phba->sli4_hba.hdr_rq->queue_id,
6800 phba->sli4_hba.dat_rq->queue_id,
6801 phba->sli4_hba.els_cq->queue_id);
6802 return 0;
6803
6804 out_destroy_fcp_wq:
6805 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6806 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6807 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6808 out_destroy_mbx_wq:
6809 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6810 out_destroy_fcp_cq:
6811 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6812 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6813 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6814 out_destroy_mbx_cq:
6815 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6816 out_destroy_fp_eq:
6817 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6818 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6819 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6820 out_error:
6821 return rc;
6822 }
6823
6824 /**
6825 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6826 * @phba: pointer to lpfc hba data structure.
6827 *
6828 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6829 * operation.
6830 *
6831 * Return codes
6832 * 0 - successful
6833 * -ENOMEM - No available memory
6834 * -EIO - The mailbox failed to complete successfully.
6835 **/
6836 void
6837 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6838 {
6839 int fcp_qidx;
6840
6841 /* Unset mailbox command work queue */
6842 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6843 /* Unset ELS work queue */
6844 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6845 /* Unset unsolicited receive queue */
6846 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6847 /* Unset FCP work queue */
6848 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6849 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6850 /* Unset mailbox command complete queue */
6851 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6852 /* Unset ELS complete queue */
6853 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6854 /* Unset FCP response complete queue */
6855 fcp_qidx = 0;
6856 do {
6857 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6858 } while (++fcp_qidx < phba->cfg_fcp_eq_count);
6859 /* Unset fast-path event queue */
6860 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6861 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6862 /* Unset slow-path event queue */
6863 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6864 }
6865
6866 /**
6867 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6868 * @phba: pointer to lpfc hba data structure.
6869 *
6870 * This routine is invoked to allocate and set up a pool of completion queue
6871 * events. The body of the completion queue event is a completion queue entry
6872 * CQE. For now, this pool is used for the interrupt service routine to queue
6873 * the following HBA completion queue events for the worker thread to process:
6874 * - Mailbox asynchronous events
6875 * - Receive queue completion unsolicited events
6876 * Later, this can be used for all the slow-path events.
6877 *
6878 * Return codes
6879 * 0 - successful
6880 * -ENOMEM - No available memory
6881 **/
6882 static int
6883 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6884 {
6885 struct lpfc_cq_event *cq_event;
6886 int i;
6887
6888 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6889 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6890 if (!cq_event)
6891 goto out_pool_create_fail;
6892 list_add_tail(&cq_event->list,
6893 &phba->sli4_hba.sp_cqe_event_pool);
6894 }
6895 return 0;
6896
6897 out_pool_create_fail:
6898 lpfc_sli4_cq_event_pool_destroy(phba);
6899 return -ENOMEM;
6900 }
6901
6902 /**
6903 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6904 * @phba: pointer to lpfc hba data structure.
6905 *
6906 * This routine is invoked to free the pool of completion queue events at
6907 * driver unload time. Note that, it is the responsibility of the driver
6908 * cleanup routine to free all the outstanding completion-queue events
6909 * allocated from this pool back into the pool before invoking this routine
6910 * to destroy the pool.
6911 **/
6912 static void
6913 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6914 {
6915 struct lpfc_cq_event *cq_event, *next_cq_event;
6916
6917 list_for_each_entry_safe(cq_event, next_cq_event,
6918 &phba->sli4_hba.sp_cqe_event_pool, list) {
6919 list_del(&cq_event->list);
6920 kfree(cq_event);
6921 }
6922 }
6923
6924 /**
6925 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6926 * @phba: pointer to lpfc hba data structure.
6927 *
6928 * This routine is the lock free version of the API invoked to allocate a
6929 * completion-queue event from the free pool.
6930 *
6931 * Return: Pointer to the newly allocated completion-queue event if successful
6932 * NULL otherwise.
6933 **/
6934 struct lpfc_cq_event *
6935 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6936 {
6937 struct lpfc_cq_event *cq_event = NULL;
6938
6939 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6940 struct lpfc_cq_event, list);
6941 return cq_event;
6942 }
6943
6944 /**
6945 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6946 * @phba: pointer to lpfc hba data structure.
6947 *
6948 * This routine is the lock version of the API invoked to allocate a
6949 * completion-queue event from the free pool.
6950 *
6951 * Return: Pointer to the newly allocated completion-queue event if successful
6952 * NULL otherwise.
6953 **/
6954 struct lpfc_cq_event *
6955 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6956 {
6957 struct lpfc_cq_event *cq_event;
6958 unsigned long iflags;
6959
6960 spin_lock_irqsave(&phba->hbalock, iflags);
6961 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6962 spin_unlock_irqrestore(&phba->hbalock, iflags);
6963 return cq_event;
6964 }
6965
6966 /**
6967 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6968 * @phba: pointer to lpfc hba data structure.
6969 * @cq_event: pointer to the completion queue event to be freed.
6970 *
6971 * This routine is the lock free version of the API invoked to release a
6972 * completion-queue event back into the free pool.
6973 **/
6974 void
6975 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6976 struct lpfc_cq_event *cq_event)
6977 {
6978 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6979 }
6980
6981 /**
6982 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6983 * @phba: pointer to lpfc hba data structure.
6984 * @cq_event: pointer to the completion queue event to be freed.
6985 *
6986 * This routine is the lock version of the API invoked to release a
6987 * completion-queue event back into the free pool.
6988 **/
6989 void
6990 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6991 struct lpfc_cq_event *cq_event)
6992 {
6993 unsigned long iflags;
6994 spin_lock_irqsave(&phba->hbalock, iflags);
6995 __lpfc_sli4_cq_event_release(phba, cq_event);
6996 spin_unlock_irqrestore(&phba->hbalock, iflags);
6997 }
6998
6999 /**
7000 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7001 * @phba: pointer to lpfc hba data structure.
7002 *
7003 * This routine is to free all the pending completion-queue events to the
7004 * back into the free pool for device reset.
7005 **/
7006 static void
7007 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7008 {
7009 LIST_HEAD(cqelist);
7010 struct lpfc_cq_event *cqe;
7011 unsigned long iflags;
7012
7013 /* Retrieve all the pending WCQEs from pending WCQE lists */
7014 spin_lock_irqsave(&phba->hbalock, iflags);
7015 /* Pending FCP XRI abort events */
7016 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7017 &cqelist);
7018 /* Pending ELS XRI abort events */
7019 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7020 &cqelist);
7021 /* Pending asynnc events */
7022 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7023 &cqelist);
7024 spin_unlock_irqrestore(&phba->hbalock, iflags);
7025
7026 while (!list_empty(&cqelist)) {
7027 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7028 lpfc_sli4_cq_event_release(phba, cqe);
7029 }
7030 }
7031
7032 /**
7033 * lpfc_pci_function_reset - Reset pci function.
7034 * @phba: pointer to lpfc hba data structure.
7035 *
7036 * This routine is invoked to request a PCI function reset. It will destroys
7037 * all resources assigned to the PCI function which originates this request.
7038 *
7039 * Return codes
7040 * 0 - successful
7041 * -ENOMEM - No available memory
7042 * -EIO - The mailbox failed to complete successfully.
7043 **/
7044 int
7045 lpfc_pci_function_reset(struct lpfc_hba *phba)
7046 {
7047 LPFC_MBOXQ_t *mboxq;
7048 uint32_t rc = 0, if_type;
7049 uint32_t shdr_status, shdr_add_status;
7050 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7051 union lpfc_sli4_cfg_shdr *shdr;
7052 struct lpfc_register reg_data;
7053
7054 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7055 switch (if_type) {
7056 case LPFC_SLI_INTF_IF_TYPE_0:
7057 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7058 GFP_KERNEL);
7059 if (!mboxq) {
7060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7061 "0494 Unable to allocate memory for "
7062 "issuing SLI_FUNCTION_RESET mailbox "
7063 "command\n");
7064 return -ENOMEM;
7065 }
7066
7067 /* Setup PCI function reset mailbox-ioctl command */
7068 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7069 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7070 LPFC_SLI4_MBX_EMBED);
7071 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7072 shdr = (union lpfc_sli4_cfg_shdr *)
7073 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7074 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7075 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7076 &shdr->response);
7077 if (rc != MBX_TIMEOUT)
7078 mempool_free(mboxq, phba->mbox_mem_pool);
7079 if (shdr_status || shdr_add_status || rc) {
7080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7081 "0495 SLI_FUNCTION_RESET mailbox "
7082 "failed with status x%x add_status x%x,"
7083 " mbx status x%x\n",
7084 shdr_status, shdr_add_status, rc);
7085 rc = -ENXIO;
7086 }
7087 break;
7088 case LPFC_SLI_INTF_IF_TYPE_2:
7089 for (num_resets = 0;
7090 num_resets < MAX_IF_TYPE_2_RESETS;
7091 num_resets++) {
7092 reg_data.word0 = 0;
7093 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7094 LPFC_SLIPORT_LITTLE_ENDIAN);
7095 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7096 LPFC_SLIPORT_INIT_PORT);
7097 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7098 CTRLregaddr);
7099
7100 /*
7101 * Poll the Port Status Register and wait for RDY for
7102 * up to 10 seconds. If the port doesn't respond, treat
7103 * it as an error. If the port responds with RN, start
7104 * the loop again.
7105 */
7106 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7107 msleep(10);
7108 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7109 STATUSregaddr, &reg_data.word0)) {
7110 rc = -ENODEV;
7111 goto out;
7112 }
7113 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7114 break;
7115 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7116 reset_again++;
7117 break;
7118 }
7119 }
7120
7121 /*
7122 * If the port responds to the init request with
7123 * reset needed, delay for a bit and restart the loop.
7124 */
7125 if (reset_again) {
7126 msleep(10);
7127 reset_again = 0;
7128 continue;
7129 }
7130
7131 /* Detect any port errors. */
7132 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7133 (rdy_chk >= 1000)) {
7134 phba->work_status[0] = readl(
7135 phba->sli4_hba.u.if_type2.ERR1regaddr);
7136 phba->work_status[1] = readl(
7137 phba->sli4_hba.u.if_type2.ERR2regaddr);
7138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7139 "2890 Port Error Detected "
7140 "during Port Reset: "
7141 "port status reg 0x%x, "
7142 "error 1=0x%x, error 2=0x%x\n",
7143 reg_data.word0,
7144 phba->work_status[0],
7145 phba->work_status[1]);
7146 rc = -ENODEV;
7147 }
7148
7149 /*
7150 * Terminate the outer loop provided the Port indicated
7151 * ready within 10 seconds.
7152 */
7153 if (rdy_chk < 1000)
7154 break;
7155 }
7156 /* delay driver action following IF_TYPE_2 function reset */
7157 msleep(100);
7158 break;
7159 case LPFC_SLI_INTF_IF_TYPE_1:
7160 default:
7161 break;
7162 }
7163
7164 out:
7165 /* Catch the not-ready port failure after a port reset. */
7166 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7167 rc = -ENODEV;
7168
7169 return rc;
7170 }
7171
7172 /**
7173 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7174 * @phba: pointer to lpfc hba data structure.
7175 * @cnt: number of nop mailbox commands to send.
7176 *
7177 * This routine is invoked to send a number @cnt of NOP mailbox command and
7178 * wait for each command to complete.
7179 *
7180 * Return: the number of NOP mailbox command completed.
7181 **/
7182 static int
7183 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7184 {
7185 LPFC_MBOXQ_t *mboxq;
7186 int length, cmdsent;
7187 uint32_t mbox_tmo;
7188 uint32_t rc = 0;
7189 uint32_t shdr_status, shdr_add_status;
7190 union lpfc_sli4_cfg_shdr *shdr;
7191
7192 if (cnt == 0) {
7193 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7194 "2518 Requested to send 0 NOP mailbox cmd\n");
7195 return cnt;
7196 }
7197
7198 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7199 if (!mboxq) {
7200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201 "2519 Unable to allocate memory for issuing "
7202 "NOP mailbox command\n");
7203 return 0;
7204 }
7205
7206 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7207 length = (sizeof(struct lpfc_mbx_nop) -
7208 sizeof(struct lpfc_sli4_cfg_mhdr));
7209 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7210 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7211
7212 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7213 if (!phba->sli4_hba.intr_enable)
7214 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7215 else {
7216 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7217 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7218 }
7219 if (rc == MBX_TIMEOUT)
7220 break;
7221 /* Check return status */
7222 shdr = (union lpfc_sli4_cfg_shdr *)
7223 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7224 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7225 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7226 &shdr->response);
7227 if (shdr_status || shdr_add_status || rc) {
7228 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7229 "2520 NOP mailbox command failed "
7230 "status x%x add_status x%x mbx "
7231 "status x%x\n", shdr_status,
7232 shdr_add_status, rc);
7233 break;
7234 }
7235 }
7236
7237 if (rc != MBX_TIMEOUT)
7238 mempool_free(mboxq, phba->mbox_mem_pool);
7239
7240 return cmdsent;
7241 }
7242
7243 /**
7244 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7245 * @phba: pointer to lpfc hba data structure.
7246 *
7247 * This routine is invoked to set up the PCI device memory space for device
7248 * with SLI-4 interface spec.
7249 *
7250 * Return codes
7251 * 0 - successful
7252 * other values - error
7253 **/
7254 static int
7255 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7256 {
7257 struct pci_dev *pdev;
7258 unsigned long bar0map_len, bar1map_len, bar2map_len;
7259 int error = -ENODEV;
7260 uint32_t if_type;
7261
7262 /* Obtain PCI device reference */
7263 if (!phba->pcidev)
7264 return error;
7265 else
7266 pdev = phba->pcidev;
7267
7268 /* Set the device DMA mask size */
7269 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7270 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7271 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7272 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7273 return error;
7274 }
7275 }
7276
7277 /*
7278 * The BARs and register set definitions and offset locations are
7279 * dependent on the if_type.
7280 */
7281 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7282 &phba->sli4_hba.sli_intf.word0)) {
7283 return error;
7284 }
7285
7286 /* There is no SLI3 failback for SLI4 devices. */
7287 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7288 LPFC_SLI_INTF_VALID) {
7289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7290 "2894 SLI_INTF reg contents invalid "
7291 "sli_intf reg 0x%x\n",
7292 phba->sli4_hba.sli_intf.word0);
7293 return error;
7294 }
7295
7296 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7297 /*
7298 * Get the bus address of SLI4 device Bar regions and the
7299 * number of bytes required by each mapping. The mapping of the
7300 * particular PCI BARs regions is dependent on the type of
7301 * SLI4 device.
7302 */
7303 if (pci_resource_start(pdev, 0)) {
7304 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7305 bar0map_len = pci_resource_len(pdev, 0);
7306
7307 /*
7308 * Map SLI4 PCI Config Space Register base to a kernel virtual
7309 * addr
7310 */
7311 phba->sli4_hba.conf_regs_memmap_p =
7312 ioremap(phba->pci_bar0_map, bar0map_len);
7313 if (!phba->sli4_hba.conf_regs_memmap_p) {
7314 dev_printk(KERN_ERR, &pdev->dev,
7315 "ioremap failed for SLI4 PCI config "
7316 "registers.\n");
7317 goto out;
7318 }
7319 /* Set up BAR0 PCI config space register memory map */
7320 lpfc_sli4_bar0_register_memmap(phba, if_type);
7321 } else {
7322 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7323 bar0map_len = pci_resource_len(pdev, 1);
7324 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7325 dev_printk(KERN_ERR, &pdev->dev,
7326 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7327 goto out;
7328 }
7329 phba->sli4_hba.conf_regs_memmap_p =
7330 ioremap(phba->pci_bar0_map, bar0map_len);
7331 if (!phba->sli4_hba.conf_regs_memmap_p) {
7332 dev_printk(KERN_ERR, &pdev->dev,
7333 "ioremap failed for SLI4 PCI config "
7334 "registers.\n");
7335 goto out;
7336 }
7337 lpfc_sli4_bar0_register_memmap(phba, if_type);
7338 }
7339
7340 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7341 (pci_resource_start(pdev, 2))) {
7342 /*
7343 * Map SLI4 if type 0 HBA Control Register base to a kernel
7344 * virtual address and setup the registers.
7345 */
7346 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7347 bar1map_len = pci_resource_len(pdev, 2);
7348 phba->sli4_hba.ctrl_regs_memmap_p =
7349 ioremap(phba->pci_bar1_map, bar1map_len);
7350 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7351 dev_printk(KERN_ERR, &pdev->dev,
7352 "ioremap failed for SLI4 HBA control registers.\n");
7353 goto out_iounmap_conf;
7354 }
7355 lpfc_sli4_bar1_register_memmap(phba);
7356 }
7357
7358 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7359 (pci_resource_start(pdev, 4))) {
7360 /*
7361 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7362 * virtual address and setup the registers.
7363 */
7364 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7365 bar2map_len = pci_resource_len(pdev, 4);
7366 phba->sli4_hba.drbl_regs_memmap_p =
7367 ioremap(phba->pci_bar2_map, bar2map_len);
7368 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7369 dev_printk(KERN_ERR, &pdev->dev,
7370 "ioremap failed for SLI4 HBA doorbell registers.\n");
7371 goto out_iounmap_ctrl;
7372 }
7373 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7374 if (error)
7375 goto out_iounmap_all;
7376 }
7377
7378 return 0;
7379
7380 out_iounmap_all:
7381 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7382 out_iounmap_ctrl:
7383 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7384 out_iounmap_conf:
7385 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7386 out:
7387 return error;
7388 }
7389
7390 /**
7391 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7392 * @phba: pointer to lpfc hba data structure.
7393 *
7394 * This routine is invoked to unset the PCI device memory space for device
7395 * with SLI-4 interface spec.
7396 **/
7397 static void
7398 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7399 {
7400 struct pci_dev *pdev;
7401
7402 /* Obtain PCI device reference */
7403 if (!phba->pcidev)
7404 return;
7405 else
7406 pdev = phba->pcidev;
7407
7408 /* Free coherent DMA memory allocated */
7409
7410 /* Unmap I/O memory space */
7411 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7412 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7413 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7414
7415 return;
7416 }
7417
7418 /**
7419 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7420 * @phba: pointer to lpfc hba data structure.
7421 *
7422 * This routine is invoked to enable the MSI-X interrupt vectors to device
7423 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7424 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7425 * invoked, enables either all or nothing, depending on the current
7426 * availability of PCI vector resources. The device driver is responsible
7427 * for calling the individual request_irq() to register each MSI-X vector
7428 * with a interrupt handler, which is done in this function. Note that
7429 * later when device is unloading, the driver should always call free_irq()
7430 * on all MSI-X vectors it has done request_irq() on before calling
7431 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7432 * will be left with MSI-X enabled and leaks its vectors.
7433 *
7434 * Return codes
7435 * 0 - successful
7436 * other values - error
7437 **/
7438 static int
7439 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7440 {
7441 int rc, i;
7442 LPFC_MBOXQ_t *pmb;
7443
7444 /* Set up MSI-X multi-message vectors */
7445 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7446 phba->msix_entries[i].entry = i;
7447
7448 /* Configure MSI-X capability structure */
7449 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7450 ARRAY_SIZE(phba->msix_entries));
7451 if (rc) {
7452 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7453 "0420 PCI enable MSI-X failed (%d)\n", rc);
7454 goto msi_fail_out;
7455 }
7456 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7457 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7458 "0477 MSI-X entry[%d]: vector=x%x "
7459 "message=%d\n", i,
7460 phba->msix_entries[i].vector,
7461 phba->msix_entries[i].entry);
7462 /*
7463 * Assign MSI-X vectors to interrupt handlers
7464 */
7465
7466 /* vector-0 is associated to slow-path handler */
7467 rc = request_irq(phba->msix_entries[0].vector,
7468 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7469 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7470 if (rc) {
7471 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7472 "0421 MSI-X slow-path request_irq failed "
7473 "(%d)\n", rc);
7474 goto msi_fail_out;
7475 }
7476
7477 /* vector-1 is associated to fast-path handler */
7478 rc = request_irq(phba->msix_entries[1].vector,
7479 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7480 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7481
7482 if (rc) {
7483 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7484 "0429 MSI-X fast-path request_irq failed "
7485 "(%d)\n", rc);
7486 goto irq_fail_out;
7487 }
7488
7489 /*
7490 * Configure HBA MSI-X attention conditions to messages
7491 */
7492 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7493
7494 if (!pmb) {
7495 rc = -ENOMEM;
7496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7497 "0474 Unable to allocate memory for issuing "
7498 "MBOX_CONFIG_MSI command\n");
7499 goto mem_fail_out;
7500 }
7501 rc = lpfc_config_msi(phba, pmb);
7502 if (rc)
7503 goto mbx_fail_out;
7504 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7505 if (rc != MBX_SUCCESS) {
7506 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7507 "0351 Config MSI mailbox command failed, "
7508 "mbxCmd x%x, mbxStatus x%x\n",
7509 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7510 goto mbx_fail_out;
7511 }
7512
7513 /* Free memory allocated for mailbox command */
7514 mempool_free(pmb, phba->mbox_mem_pool);
7515 return rc;
7516
7517 mbx_fail_out:
7518 /* Free memory allocated for mailbox command */
7519 mempool_free(pmb, phba->mbox_mem_pool);
7520
7521 mem_fail_out:
7522 /* free the irq already requested */
7523 free_irq(phba->msix_entries[1].vector, phba);
7524
7525 irq_fail_out:
7526 /* free the irq already requested */
7527 free_irq(phba->msix_entries[0].vector, phba);
7528
7529 msi_fail_out:
7530 /* Unconfigure MSI-X capability structure */
7531 pci_disable_msix(phba->pcidev);
7532 return rc;
7533 }
7534
7535 /**
7536 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7537 * @phba: pointer to lpfc hba data structure.
7538 *
7539 * This routine is invoked to release the MSI-X vectors and then disable the
7540 * MSI-X interrupt mode to device with SLI-3 interface spec.
7541 **/
7542 static void
7543 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7544 {
7545 int i;
7546
7547 /* Free up MSI-X multi-message vectors */
7548 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7549 free_irq(phba->msix_entries[i].vector, phba);
7550 /* Disable MSI-X */
7551 pci_disable_msix(phba->pcidev);
7552
7553 return;
7554 }
7555
7556 /**
7557 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7558 * @phba: pointer to lpfc hba data structure.
7559 *
7560 * This routine is invoked to enable the MSI interrupt mode to device with
7561 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7562 * enable the MSI vector. The device driver is responsible for calling the
7563 * request_irq() to register MSI vector with a interrupt the handler, which
7564 * is done in this function.
7565 *
7566 * Return codes
7567 * 0 - successful
7568 * other values - error
7569 */
7570 static int
7571 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7572 {
7573 int rc;
7574
7575 rc = pci_enable_msi(phba->pcidev);
7576 if (!rc)
7577 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7578 "0462 PCI enable MSI mode success.\n");
7579 else {
7580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7581 "0471 PCI enable MSI mode failed (%d)\n", rc);
7582 return rc;
7583 }
7584
7585 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7586 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7587 if (rc) {
7588 pci_disable_msi(phba->pcidev);
7589 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7590 "0478 MSI request_irq failed (%d)\n", rc);
7591 }
7592 return rc;
7593 }
7594
7595 /**
7596 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7597 * @phba: pointer to lpfc hba data structure.
7598 *
7599 * This routine is invoked to disable the MSI interrupt mode to device with
7600 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7601 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7602 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7603 * its vector.
7604 */
7605 static void
7606 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7607 {
7608 free_irq(phba->pcidev->irq, phba);
7609 pci_disable_msi(phba->pcidev);
7610 return;
7611 }
7612
7613 /**
7614 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7615 * @phba: pointer to lpfc hba data structure.
7616 *
7617 * This routine is invoked to enable device interrupt and associate driver's
7618 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7619 * spec. Depends on the interrupt mode configured to the driver, the driver
7620 * will try to fallback from the configured interrupt mode to an interrupt
7621 * mode which is supported by the platform, kernel, and device in the order
7622 * of:
7623 * MSI-X -> MSI -> IRQ.
7624 *
7625 * Return codes
7626 * 0 - successful
7627 * other values - error
7628 **/
7629 static uint32_t
7630 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7631 {
7632 uint32_t intr_mode = LPFC_INTR_ERROR;
7633 int retval;
7634
7635 if (cfg_mode == 2) {
7636 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7637 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7638 if (!retval) {
7639 /* Now, try to enable MSI-X interrupt mode */
7640 retval = lpfc_sli_enable_msix(phba);
7641 if (!retval) {
7642 /* Indicate initialization to MSI-X mode */
7643 phba->intr_type = MSIX;
7644 intr_mode = 2;
7645 }
7646 }
7647 }
7648
7649 /* Fallback to MSI if MSI-X initialization failed */
7650 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7651 retval = lpfc_sli_enable_msi(phba);
7652 if (!retval) {
7653 /* Indicate initialization to MSI mode */
7654 phba->intr_type = MSI;
7655 intr_mode = 1;
7656 }
7657 }
7658
7659 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7660 if (phba->intr_type == NONE) {
7661 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7662 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7663 if (!retval) {
7664 /* Indicate initialization to INTx mode */
7665 phba->intr_type = INTx;
7666 intr_mode = 0;
7667 }
7668 }
7669 return intr_mode;
7670 }
7671
7672 /**
7673 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7674 * @phba: pointer to lpfc hba data structure.
7675 *
7676 * This routine is invoked to disable device interrupt and disassociate the
7677 * driver's interrupt handler(s) from interrupt vector(s) to device with
7678 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7679 * release the interrupt vector(s) for the message signaled interrupt.
7680 **/
7681 static void
7682 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7683 {
7684 /* Disable the currently initialized interrupt mode */
7685 if (phba->intr_type == MSIX)
7686 lpfc_sli_disable_msix(phba);
7687 else if (phba->intr_type == MSI)
7688 lpfc_sli_disable_msi(phba);
7689 else if (phba->intr_type == INTx)
7690 free_irq(phba->pcidev->irq, phba);
7691
7692 /* Reset interrupt management states */
7693 phba->intr_type = NONE;
7694 phba->sli.slistat.sli_intr = 0;
7695
7696 return;
7697 }
7698
7699 /**
7700 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7701 * @phba: pointer to lpfc hba data structure.
7702 *
7703 * This routine is invoked to enable the MSI-X interrupt vectors to device
7704 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7705 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7706 * enables either all or nothing, depending on the current availability of
7707 * PCI vector resources. The device driver is responsible for calling the
7708 * individual request_irq() to register each MSI-X vector with a interrupt
7709 * handler, which is done in this function. Note that later when device is
7710 * unloading, the driver should always call free_irq() on all MSI-X vectors
7711 * it has done request_irq() on before calling pci_disable_msix(). Failure
7712 * to do so results in a BUG_ON() and a device will be left with MSI-X
7713 * enabled and leaks its vectors.
7714 *
7715 * Return codes
7716 * 0 - successful
7717 * other values - error
7718 **/
7719 static int
7720 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7721 {
7722 int vectors, rc, index;
7723
7724 /* Set up MSI-X multi-message vectors */
7725 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7726 phba->sli4_hba.msix_entries[index].entry = index;
7727
7728 /* Configure MSI-X capability structure */
7729 vectors = phba->sli4_hba.cfg_eqn;
7730 enable_msix_vectors:
7731 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7732 vectors);
7733 if (rc > 1) {
7734 vectors = rc;
7735 goto enable_msix_vectors;
7736 } else if (rc) {
7737 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7738 "0484 PCI enable MSI-X failed (%d)\n", rc);
7739 goto msi_fail_out;
7740 }
7741
7742 /* Log MSI-X vector assignment */
7743 for (index = 0; index < vectors; index++)
7744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7745 "0489 MSI-X entry[%d]: vector=x%x "
7746 "message=%d\n", index,
7747 phba->sli4_hba.msix_entries[index].vector,
7748 phba->sli4_hba.msix_entries[index].entry);
7749 /*
7750 * Assign MSI-X vectors to interrupt handlers
7751 */
7752 if (vectors > 1)
7753 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7754 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7755 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7756 else
7757 /* All Interrupts need to be handled by one EQ */
7758 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7759 &lpfc_sli4_intr_handler, IRQF_SHARED,
7760 LPFC_DRIVER_NAME, phba);
7761 if (rc) {
7762 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7763 "0485 MSI-X slow-path request_irq failed "
7764 "(%d)\n", rc);
7765 goto msi_fail_out;
7766 }
7767
7768 /* The rest of the vector(s) are associated to fast-path handler(s) */
7769 for (index = 1; index < vectors; index++) {
7770 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7771 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7772 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7773 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7774 LPFC_FP_DRIVER_HANDLER_NAME,
7775 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7776 if (rc) {
7777 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7778 "0486 MSI-X fast-path (%d) "
7779 "request_irq failed (%d)\n", index, rc);
7780 goto cfg_fail_out;
7781 }
7782 }
7783 phba->sli4_hba.msix_vec_nr = vectors;
7784
7785 return rc;
7786
7787 cfg_fail_out:
7788 /* free the irq already requested */
7789 for (--index; index >= 1; index--)
7790 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7791 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7792
7793 /* free the irq already requested */
7794 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7795
7796 msi_fail_out:
7797 /* Unconfigure MSI-X capability structure */
7798 pci_disable_msix(phba->pcidev);
7799 return rc;
7800 }
7801
7802 /**
7803 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7804 * @phba: pointer to lpfc hba data structure.
7805 *
7806 * This routine is invoked to release the MSI-X vectors and then disable the
7807 * MSI-X interrupt mode to device with SLI-4 interface spec.
7808 **/
7809 static void
7810 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7811 {
7812 int index;
7813
7814 /* Free up MSI-X multi-message vectors */
7815 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7816
7817 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7818 free_irq(phba->sli4_hba.msix_entries[index].vector,
7819 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7820
7821 /* Disable MSI-X */
7822 pci_disable_msix(phba->pcidev);
7823
7824 return;
7825 }
7826
7827 /**
7828 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7829 * @phba: pointer to lpfc hba data structure.
7830 *
7831 * This routine is invoked to enable the MSI interrupt mode to device with
7832 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7833 * to enable the MSI vector. The device driver is responsible for calling
7834 * the request_irq() to register MSI vector with a interrupt the handler,
7835 * which is done in this function.
7836 *
7837 * Return codes
7838 * 0 - successful
7839 * other values - error
7840 **/
7841 static int
7842 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7843 {
7844 int rc, index;
7845
7846 rc = pci_enable_msi(phba->pcidev);
7847 if (!rc)
7848 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7849 "0487 PCI enable MSI mode success.\n");
7850 else {
7851 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7852 "0488 PCI enable MSI mode failed (%d)\n", rc);
7853 return rc;
7854 }
7855
7856 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7857 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7858 if (rc) {
7859 pci_disable_msi(phba->pcidev);
7860 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7861 "0490 MSI request_irq failed (%d)\n", rc);
7862 return rc;
7863 }
7864
7865 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7866 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7867 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7868 }
7869
7870 return 0;
7871 }
7872
7873 /**
7874 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7875 * @phba: pointer to lpfc hba data structure.
7876 *
7877 * This routine is invoked to disable the MSI interrupt mode to device with
7878 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7879 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7880 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7881 * its vector.
7882 **/
7883 static void
7884 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7885 {
7886 free_irq(phba->pcidev->irq, phba);
7887 pci_disable_msi(phba->pcidev);
7888 return;
7889 }
7890
7891 /**
7892 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7893 * @phba: pointer to lpfc hba data structure.
7894 *
7895 * This routine is invoked to enable device interrupt and associate driver's
7896 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7897 * interface spec. Depends on the interrupt mode configured to the driver,
7898 * the driver will try to fallback from the configured interrupt mode to an
7899 * interrupt mode which is supported by the platform, kernel, and device in
7900 * the order of:
7901 * MSI-X -> MSI -> IRQ.
7902 *
7903 * Return codes
7904 * 0 - successful
7905 * other values - error
7906 **/
7907 static uint32_t
7908 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7909 {
7910 uint32_t intr_mode = LPFC_INTR_ERROR;
7911 int retval, index;
7912
7913 if (cfg_mode == 2) {
7914 /* Preparation before conf_msi mbox cmd */
7915 retval = 0;
7916 if (!retval) {
7917 /* Now, try to enable MSI-X interrupt mode */
7918 retval = lpfc_sli4_enable_msix(phba);
7919 if (!retval) {
7920 /* Indicate initialization to MSI-X mode */
7921 phba->intr_type = MSIX;
7922 intr_mode = 2;
7923 }
7924 }
7925 }
7926
7927 /* Fallback to MSI if MSI-X initialization failed */
7928 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7929 retval = lpfc_sli4_enable_msi(phba);
7930 if (!retval) {
7931 /* Indicate initialization to MSI mode */
7932 phba->intr_type = MSI;
7933 intr_mode = 1;
7934 }
7935 }
7936
7937 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7938 if (phba->intr_type == NONE) {
7939 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7940 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7941 if (!retval) {
7942 /* Indicate initialization to INTx mode */
7943 phba->intr_type = INTx;
7944 intr_mode = 0;
7945 for (index = 0; index < phba->cfg_fcp_eq_count;
7946 index++) {
7947 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7948 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7949 }
7950 }
7951 }
7952 return intr_mode;
7953 }
7954
7955 /**
7956 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7957 * @phba: pointer to lpfc hba data structure.
7958 *
7959 * This routine is invoked to disable device interrupt and disassociate
7960 * the driver's interrupt handler(s) from interrupt vector(s) to device
7961 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7962 * will release the interrupt vector(s) for the message signaled interrupt.
7963 **/
7964 static void
7965 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7966 {
7967 /* Disable the currently initialized interrupt mode */
7968 if (phba->intr_type == MSIX)
7969 lpfc_sli4_disable_msix(phba);
7970 else if (phba->intr_type == MSI)
7971 lpfc_sli4_disable_msi(phba);
7972 else if (phba->intr_type == INTx)
7973 free_irq(phba->pcidev->irq, phba);
7974
7975 /* Reset interrupt management states */
7976 phba->intr_type = NONE;
7977 phba->sli.slistat.sli_intr = 0;
7978
7979 return;
7980 }
7981
7982 /**
7983 * lpfc_unset_hba - Unset SLI3 hba device initialization
7984 * @phba: pointer to lpfc hba data structure.
7985 *
7986 * This routine is invoked to unset the HBA device initialization steps to
7987 * a device with SLI-3 interface spec.
7988 **/
7989 static void
7990 lpfc_unset_hba(struct lpfc_hba *phba)
7991 {
7992 struct lpfc_vport *vport = phba->pport;
7993 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7994
7995 spin_lock_irq(shost->host_lock);
7996 vport->load_flag |= FC_UNLOADING;
7997 spin_unlock_irq(shost->host_lock);
7998
7999 lpfc_stop_hba_timers(phba);
8000
8001 phba->pport->work_port_events = 0;
8002
8003 lpfc_sli_hba_down(phba);
8004
8005 lpfc_sli_brdrestart(phba);
8006
8007 lpfc_sli_disable_intr(phba);
8008
8009 return;
8010 }
8011
8012 /**
8013 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8014 * @phba: pointer to lpfc hba data structure.
8015 *
8016 * This routine is invoked to unset the HBA device initialization steps to
8017 * a device with SLI-4 interface spec.
8018 **/
8019 static void
8020 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8021 {
8022 struct lpfc_vport *vport = phba->pport;
8023 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8024
8025 spin_lock_irq(shost->host_lock);
8026 vport->load_flag |= FC_UNLOADING;
8027 spin_unlock_irq(shost->host_lock);
8028
8029 phba->pport->work_port_events = 0;
8030
8031 /* Stop the SLI4 device port */
8032 lpfc_stop_port(phba);
8033
8034 lpfc_sli4_disable_intr(phba);
8035
8036 /* Reset SLI4 HBA FCoE function */
8037 lpfc_pci_function_reset(phba);
8038 lpfc_sli4_queue_destroy(phba);
8039
8040 return;
8041 }
8042
8043 /**
8044 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8045 * @phba: Pointer to HBA context object.
8046 *
8047 * This function is called in the SLI4 code path to wait for completion
8048 * of device's XRIs exchange busy. It will check the XRI exchange busy
8049 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8050 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8051 * I/Os every 30 seconds, log error message, and wait forever. Only when
8052 * all XRI exchange busy complete, the driver unload shall proceed with
8053 * invoking the function reset ioctl mailbox command to the CNA and the
8054 * the rest of the driver unload resource release.
8055 **/
8056 static void
8057 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8058 {
8059 int wait_time = 0;
8060 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8061 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8062
8063 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8064 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8065 if (!fcp_xri_cmpl)
8066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8067 "2877 FCP XRI exchange busy "
8068 "wait time: %d seconds.\n",
8069 wait_time/1000);
8070 if (!els_xri_cmpl)
8071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8072 "2878 ELS XRI exchange busy "
8073 "wait time: %d seconds.\n",
8074 wait_time/1000);
8075 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8076 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8077 } else {
8078 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8079 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8080 }
8081 fcp_xri_cmpl =
8082 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8083 els_xri_cmpl =
8084 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8085 }
8086 }
8087
8088 /**
8089 * lpfc_sli4_hba_unset - Unset the fcoe hba
8090 * @phba: Pointer to HBA context object.
8091 *
8092 * This function is called in the SLI4 code path to reset the HBA's FCoE
8093 * function. The caller is not required to hold any lock. This routine
8094 * issues PCI function reset mailbox command to reset the FCoE function.
8095 * At the end of the function, it calls lpfc_hba_down_post function to
8096 * free any pending commands.
8097 **/
8098 static void
8099 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8100 {
8101 int wait_cnt = 0;
8102 LPFC_MBOXQ_t *mboxq;
8103 struct pci_dev *pdev = phba->pcidev;
8104
8105 lpfc_stop_hba_timers(phba);
8106 phba->sli4_hba.intr_enable = 0;
8107
8108 /*
8109 * Gracefully wait out the potential current outstanding asynchronous
8110 * mailbox command.
8111 */
8112
8113 /* First, block any pending async mailbox command from posted */
8114 spin_lock_irq(&phba->hbalock);
8115 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8116 spin_unlock_irq(&phba->hbalock);
8117 /* Now, trying to wait it out if we can */
8118 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8119 msleep(10);
8120 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8121 break;
8122 }
8123 /* Forcefully release the outstanding mailbox command if timed out */
8124 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8125 spin_lock_irq(&phba->hbalock);
8126 mboxq = phba->sli.mbox_active;
8127 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8128 __lpfc_mbox_cmpl_put(phba, mboxq);
8129 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8130 phba->sli.mbox_active = NULL;
8131 spin_unlock_irq(&phba->hbalock);
8132 }
8133
8134 /* Abort all iocbs associated with the hba */
8135 lpfc_sli_hba_iocb_abort(phba);
8136
8137 /* Wait for completion of device XRI exchange busy */
8138 lpfc_sli4_xri_exchange_busy_wait(phba);
8139
8140 /* Disable PCI subsystem interrupt */
8141 lpfc_sli4_disable_intr(phba);
8142
8143 /* Disable SR-IOV if enabled */
8144 if (phba->cfg_sriov_nr_virtfn)
8145 pci_disable_sriov(pdev);
8146
8147 /* Stop kthread signal shall trigger work_done one more time */
8148 kthread_stop(phba->worker_thread);
8149
8150 /* Reset SLI4 HBA FCoE function */
8151 lpfc_pci_function_reset(phba);
8152 lpfc_sli4_queue_destroy(phba);
8153
8154 /* Stop the SLI4 device port */
8155 phba->pport->work_port_events = 0;
8156 }
8157
8158 /**
8159 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8160 * @phba: Pointer to HBA context object.
8161 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8162 *
8163 * This function is called in the SLI4 code path to read the port's
8164 * sli4 capabilities.
8165 *
8166 * This function may be be called from any context that can block-wait
8167 * for the completion. The expectation is that this routine is called
8168 * typically from probe_one or from the online routine.
8169 **/
8170 int
8171 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8172 {
8173 int rc;
8174 struct lpfc_mqe *mqe;
8175 struct lpfc_pc_sli4_params *sli4_params;
8176 uint32_t mbox_tmo;
8177
8178 rc = 0;
8179 mqe = &mboxq->u.mqe;
8180
8181 /* Read the port's SLI4 Parameters port capabilities */
8182 lpfc_pc_sli4_params(mboxq);
8183 if (!phba->sli4_hba.intr_enable)
8184 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8185 else {
8186 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8187 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8188 }
8189
8190 if (unlikely(rc))
8191 return 1;
8192
8193 sli4_params = &phba->sli4_hba.pc_sli4_params;
8194 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8195 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8196 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8197 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8198 &mqe->un.sli4_params);
8199 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8200 &mqe->un.sli4_params);
8201 sli4_params->proto_types = mqe->un.sli4_params.word3;
8202 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8203 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8204 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8205 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8206 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8207 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8208 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8209 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8210 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8211 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8212 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8213 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8214 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8215 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8216 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8217 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8218 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8219 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8220 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8221 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8222
8223 /* Make sure that sge_supp_len can be handled by the driver */
8224 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8225 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8226
8227 return rc;
8228 }
8229
8230 /**
8231 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8232 * @phba: Pointer to HBA context object.
8233 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8234 *
8235 * This function is called in the SLI4 code path to read the port's
8236 * sli4 capabilities.
8237 *
8238 * This function may be be called from any context that can block-wait
8239 * for the completion. The expectation is that this routine is called
8240 * typically from probe_one or from the online routine.
8241 **/
8242 int
8243 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8244 {
8245 int rc;
8246 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8247 struct lpfc_pc_sli4_params *sli4_params;
8248 uint32_t mbox_tmo;
8249 int length;
8250 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8251
8252 /*
8253 * By default, the driver assumes the SLI4 port requires RPI
8254 * header postings. The SLI4_PARAM response will correct this
8255 * assumption.
8256 */
8257 phba->sli4_hba.rpi_hdrs_in_use = 1;
8258
8259 /* Read the port's SLI4 Config Parameters */
8260 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8261 sizeof(struct lpfc_sli4_cfg_mhdr));
8262 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8263 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8264 length, LPFC_SLI4_MBX_EMBED);
8265 if (!phba->sli4_hba.intr_enable)
8266 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8267 else {
8268 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8269 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8270 }
8271 if (unlikely(rc))
8272 return rc;
8273 sli4_params = &phba->sli4_hba.pc_sli4_params;
8274 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8275 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8276 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8277 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8278 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8279 mbx_sli4_parameters);
8280 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8281 mbx_sli4_parameters);
8282 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8283 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8284 else
8285 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8286 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8287 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8288 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8289 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8290 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8291 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8292 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8293 mbx_sli4_parameters);
8294 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8295 mbx_sli4_parameters);
8296 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8297 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8298
8299 /* Make sure that sge_supp_len can be handled by the driver */
8300 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8301 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8302
8303 return 0;
8304 }
8305
8306 /**
8307 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8308 * @pdev: pointer to PCI device
8309 * @pid: pointer to PCI device identifier
8310 *
8311 * This routine is to be called to attach a device with SLI-3 interface spec
8312 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8313 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8314 * information of the device and driver to see if the driver state that it can
8315 * support this kind of device. If the match is successful, the driver core
8316 * invokes this routine. If this routine determines it can claim the HBA, it
8317 * does all the initialization that it needs to do to handle the HBA properly.
8318 *
8319 * Return code
8320 * 0 - driver can claim the device
8321 * negative value - driver can not claim the device
8322 **/
8323 static int __devinit
8324 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8325 {
8326 struct lpfc_hba *phba;
8327 struct lpfc_vport *vport = NULL;
8328 struct Scsi_Host *shost = NULL;
8329 int error;
8330 uint32_t cfg_mode, intr_mode;
8331
8332 /* Allocate memory for HBA structure */
8333 phba = lpfc_hba_alloc(pdev);
8334 if (!phba)
8335 return -ENOMEM;
8336
8337 /* Perform generic PCI device enabling operation */
8338 error = lpfc_enable_pci_dev(phba);
8339 if (error)
8340 goto out_free_phba;
8341
8342 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8343 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8344 if (error)
8345 goto out_disable_pci_dev;
8346
8347 /* Set up SLI-3 specific device PCI memory space */
8348 error = lpfc_sli_pci_mem_setup(phba);
8349 if (error) {
8350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8351 "1402 Failed to set up pci memory space.\n");
8352 goto out_disable_pci_dev;
8353 }
8354
8355 /* Set up phase-1 common device driver resources */
8356 error = lpfc_setup_driver_resource_phase1(phba);
8357 if (error) {
8358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8359 "1403 Failed to set up driver resource.\n");
8360 goto out_unset_pci_mem_s3;
8361 }
8362
8363 /* Set up SLI-3 specific device driver resources */
8364 error = lpfc_sli_driver_resource_setup(phba);
8365 if (error) {
8366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8367 "1404 Failed to set up driver resource.\n");
8368 goto out_unset_pci_mem_s3;
8369 }
8370
8371 /* Initialize and populate the iocb list per host */
8372 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8373 if (error) {
8374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8375 "1405 Failed to initialize iocb list.\n");
8376 goto out_unset_driver_resource_s3;
8377 }
8378
8379 /* Set up common device driver resources */
8380 error = lpfc_setup_driver_resource_phase2(phba);
8381 if (error) {
8382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8383 "1406 Failed to set up driver resource.\n");
8384 goto out_free_iocb_list;
8385 }
8386
8387 /* Get the default values for Model Name and Description */
8388 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8389
8390 /* Create SCSI host to the physical port */
8391 error = lpfc_create_shost(phba);
8392 if (error) {
8393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8394 "1407 Failed to create scsi host.\n");
8395 goto out_unset_driver_resource;
8396 }
8397
8398 /* Configure sysfs attributes */
8399 vport = phba->pport;
8400 error = lpfc_alloc_sysfs_attr(vport);
8401 if (error) {
8402 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8403 "1476 Failed to allocate sysfs attr\n");
8404 goto out_destroy_shost;
8405 }
8406
8407 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8408 /* Now, trying to enable interrupt and bring up the device */
8409 cfg_mode = phba->cfg_use_msi;
8410 while (true) {
8411 /* Put device to a known state before enabling interrupt */
8412 lpfc_stop_port(phba);
8413 /* Configure and enable interrupt */
8414 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8415 if (intr_mode == LPFC_INTR_ERROR) {
8416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8417 "0431 Failed to enable interrupt.\n");
8418 error = -ENODEV;
8419 goto out_free_sysfs_attr;
8420 }
8421 /* SLI-3 HBA setup */
8422 if (lpfc_sli_hba_setup(phba)) {
8423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8424 "1477 Failed to set up hba\n");
8425 error = -ENODEV;
8426 goto out_remove_device;
8427 }
8428
8429 /* Wait 50ms for the interrupts of previous mailbox commands */
8430 msleep(50);
8431 /* Check active interrupts on message signaled interrupts */
8432 if (intr_mode == 0 ||
8433 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8434 /* Log the current active interrupt mode */
8435 phba->intr_mode = intr_mode;
8436 lpfc_log_intr_mode(phba, intr_mode);
8437 break;
8438 } else {
8439 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8440 "0447 Configure interrupt mode (%d) "
8441 "failed active interrupt test.\n",
8442 intr_mode);
8443 /* Disable the current interrupt mode */
8444 lpfc_sli_disable_intr(phba);
8445 /* Try next level of interrupt mode */
8446 cfg_mode = --intr_mode;
8447 }
8448 }
8449
8450 /* Perform post initialization setup */
8451 lpfc_post_init_setup(phba);
8452
8453 /* Check if there are static vports to be created. */
8454 lpfc_create_static_vport(phba);
8455
8456 return 0;
8457
8458 out_remove_device:
8459 lpfc_unset_hba(phba);
8460 out_free_sysfs_attr:
8461 lpfc_free_sysfs_attr(vport);
8462 out_destroy_shost:
8463 lpfc_destroy_shost(phba);
8464 out_unset_driver_resource:
8465 lpfc_unset_driver_resource_phase2(phba);
8466 out_free_iocb_list:
8467 lpfc_free_iocb_list(phba);
8468 out_unset_driver_resource_s3:
8469 lpfc_sli_driver_resource_unset(phba);
8470 out_unset_pci_mem_s3:
8471 lpfc_sli_pci_mem_unset(phba);
8472 out_disable_pci_dev:
8473 lpfc_disable_pci_dev(phba);
8474 if (shost)
8475 scsi_host_put(shost);
8476 out_free_phba:
8477 lpfc_hba_free(phba);
8478 return error;
8479 }
8480
8481 /**
8482 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8483 * @pdev: pointer to PCI device
8484 *
8485 * This routine is to be called to disattach a device with SLI-3 interface
8486 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8487 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8488 * device to be removed from the PCI subsystem properly.
8489 **/
8490 static void __devexit
8491 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8492 {
8493 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8494 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8495 struct lpfc_vport **vports;
8496 struct lpfc_hba *phba = vport->phba;
8497 int i;
8498 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8499
8500 spin_lock_irq(&phba->hbalock);
8501 vport->load_flag |= FC_UNLOADING;
8502 spin_unlock_irq(&phba->hbalock);
8503
8504 lpfc_free_sysfs_attr(vport);
8505
8506 /* Release all the vports against this physical port */
8507 vports = lpfc_create_vport_work_array(phba);
8508 if (vports != NULL)
8509 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8510 fc_vport_terminate(vports[i]->fc_vport);
8511 lpfc_destroy_vport_work_array(phba, vports);
8512
8513 /* Remove FC host and then SCSI host with the physical port */
8514 fc_remove_host(shost);
8515 scsi_remove_host(shost);
8516 lpfc_cleanup(vport);
8517
8518 /*
8519 * Bring down the SLI Layer. This step disable all interrupts,
8520 * clears the rings, discards all mailbox commands, and resets
8521 * the HBA.
8522 */
8523
8524 /* HBA interrupt will be disabled after this call */
8525 lpfc_sli_hba_down(phba);
8526 /* Stop kthread signal shall trigger work_done one more time */
8527 kthread_stop(phba->worker_thread);
8528 /* Final cleanup of txcmplq and reset the HBA */
8529 lpfc_sli_brdrestart(phba);
8530
8531 lpfc_stop_hba_timers(phba);
8532 spin_lock_irq(&phba->hbalock);
8533 list_del_init(&vport->listentry);
8534 spin_unlock_irq(&phba->hbalock);
8535
8536 lpfc_debugfs_terminate(vport);
8537
8538 /* Disable SR-IOV if enabled */
8539 if (phba->cfg_sriov_nr_virtfn)
8540 pci_disable_sriov(pdev);
8541
8542 /* Disable interrupt */
8543 lpfc_sli_disable_intr(phba);
8544
8545 pci_set_drvdata(pdev, NULL);
8546 scsi_host_put(shost);
8547
8548 /*
8549 * Call scsi_free before mem_free since scsi bufs are released to their
8550 * corresponding pools here.
8551 */
8552 lpfc_scsi_free(phba);
8553 lpfc_mem_free_all(phba);
8554
8555 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8556 phba->hbqslimp.virt, phba->hbqslimp.phys);
8557
8558 /* Free resources associated with SLI2 interface */
8559 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8560 phba->slim2p.virt, phba->slim2p.phys);
8561
8562 /* unmap adapter SLIM and Control Registers */
8563 iounmap(phba->ctrl_regs_memmap_p);
8564 iounmap(phba->slim_memmap_p);
8565
8566 lpfc_hba_free(phba);
8567
8568 pci_release_selected_regions(pdev, bars);
8569 pci_disable_device(pdev);
8570 }
8571
8572 /**
8573 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8574 * @pdev: pointer to PCI device
8575 * @msg: power management message
8576 *
8577 * This routine is to be called from the kernel's PCI subsystem to support
8578 * system Power Management (PM) to device with SLI-3 interface spec. When
8579 * PM invokes this method, it quiesces the device by stopping the driver's
8580 * worker thread for the device, turning off device's interrupt and DMA,
8581 * and bring the device offline. Note that as the driver implements the
8582 * minimum PM requirements to a power-aware driver's PM support for the
8583 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8584 * to the suspend() method call will be treated as SUSPEND and the driver will
8585 * fully reinitialize its device during resume() method call, the driver will
8586 * set device to PCI_D3hot state in PCI config space instead of setting it
8587 * according to the @msg provided by the PM.
8588 *
8589 * Return code
8590 * 0 - driver suspended the device
8591 * Error otherwise
8592 **/
8593 static int
8594 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8595 {
8596 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8597 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8598
8599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8600 "0473 PCI device Power Management suspend.\n");
8601
8602 /* Bring down the device */
8603 lpfc_offline_prep(phba);
8604 lpfc_offline(phba);
8605 kthread_stop(phba->worker_thread);
8606
8607 /* Disable interrupt from device */
8608 lpfc_sli_disable_intr(phba);
8609
8610 /* Save device state to PCI config space */
8611 pci_save_state(pdev);
8612 pci_set_power_state(pdev, PCI_D3hot);
8613
8614 return 0;
8615 }
8616
8617 /**
8618 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8619 * @pdev: pointer to PCI device
8620 *
8621 * This routine is to be called from the kernel's PCI subsystem to support
8622 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8623 * invokes this method, it restores the device's PCI config space state and
8624 * fully reinitializes the device and brings it online. Note that as the
8625 * driver implements the minimum PM requirements to a power-aware driver's
8626 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8627 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8628 * driver will fully reinitialize its device during resume() method call,
8629 * the device will be set to PCI_D0 directly in PCI config space before
8630 * restoring the state.
8631 *
8632 * Return code
8633 * 0 - driver suspended the device
8634 * Error otherwise
8635 **/
8636 static int
8637 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8638 {
8639 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8640 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8641 uint32_t intr_mode;
8642 int error;
8643
8644 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8645 "0452 PCI device Power Management resume.\n");
8646
8647 /* Restore device state from PCI config space */
8648 pci_set_power_state(pdev, PCI_D0);
8649 pci_restore_state(pdev);
8650
8651 /*
8652 * As the new kernel behavior of pci_restore_state() API call clears
8653 * device saved_state flag, need to save the restored state again.
8654 */
8655 pci_save_state(pdev);
8656
8657 if (pdev->is_busmaster)
8658 pci_set_master(pdev);
8659
8660 /* Startup the kernel thread for this host adapter. */
8661 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8662 "lpfc_worker_%d", phba->brd_no);
8663 if (IS_ERR(phba->worker_thread)) {
8664 error = PTR_ERR(phba->worker_thread);
8665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8666 "0434 PM resume failed to start worker "
8667 "thread: error=x%x.\n", error);
8668 return error;
8669 }
8670
8671 /* Configure and enable interrupt */
8672 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8673 if (intr_mode == LPFC_INTR_ERROR) {
8674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8675 "0430 PM resume Failed to enable interrupt\n");
8676 return -EIO;
8677 } else
8678 phba->intr_mode = intr_mode;
8679
8680 /* Restart HBA and bring it online */
8681 lpfc_sli_brdrestart(phba);
8682 lpfc_online(phba);
8683
8684 /* Log the current active interrupt mode */
8685 lpfc_log_intr_mode(phba, phba->intr_mode);
8686
8687 return 0;
8688 }
8689
8690 /**
8691 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8692 * @phba: pointer to lpfc hba data structure.
8693 *
8694 * This routine is called to prepare the SLI3 device for PCI slot recover. It
8695 * aborts all the outstanding SCSI I/Os to the pci device.
8696 **/
8697 static void
8698 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8699 {
8700 struct lpfc_sli *psli = &phba->sli;
8701 struct lpfc_sli_ring *pring;
8702
8703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8704 "2723 PCI channel I/O abort preparing for recovery\n");
8705
8706 /*
8707 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8708 * and let the SCSI mid-layer to retry them to recover.
8709 */
8710 pring = &psli->ring[psli->fcp_ring];
8711 lpfc_sli_abort_iocb_ring(phba, pring);
8712 }
8713
8714 /**
8715 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8716 * @phba: pointer to lpfc hba data structure.
8717 *
8718 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8719 * disables the device interrupt and pci device, and aborts the internal FCP
8720 * pending I/Os.
8721 **/
8722 static void
8723 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8724 {
8725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8726 "2710 PCI channel disable preparing for reset\n");
8727
8728 /* Block any management I/Os to the device */
8729 lpfc_block_mgmt_io(phba);
8730
8731 /* Block all SCSI devices' I/Os on the host */
8732 lpfc_scsi_dev_block(phba);
8733
8734 /* stop all timers */
8735 lpfc_stop_hba_timers(phba);
8736
8737 /* Disable interrupt and pci device */
8738 lpfc_sli_disable_intr(phba);
8739 pci_disable_device(phba->pcidev);
8740
8741 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8742 lpfc_sli_flush_fcp_rings(phba);
8743 }
8744
8745 /**
8746 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8747 * @phba: pointer to lpfc hba data structure.
8748 *
8749 * This routine is called to prepare the SLI3 device for PCI slot permanently
8750 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8751 * pending I/Os.
8752 **/
8753 static void
8754 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8755 {
8756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8757 "2711 PCI channel permanent disable for failure\n");
8758 /* Block all SCSI devices' I/Os on the host */
8759 lpfc_scsi_dev_block(phba);
8760
8761 /* stop all timers */
8762 lpfc_stop_hba_timers(phba);
8763
8764 /* Clean up all driver's outstanding SCSI I/Os */
8765 lpfc_sli_flush_fcp_rings(phba);
8766 }
8767
8768 /**
8769 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8770 * @pdev: pointer to PCI device.
8771 * @state: the current PCI connection state.
8772 *
8773 * This routine is called from the PCI subsystem for I/O error handling to
8774 * device with SLI-3 interface spec. This function is called by the PCI
8775 * subsystem after a PCI bus error affecting this device has been detected.
8776 * When this function is invoked, it will need to stop all the I/Os and
8777 * interrupt(s) to the device. Once that is done, it will return
8778 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8779 * as desired.
8780 *
8781 * Return codes
8782 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8783 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8784 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8785 **/
8786 static pci_ers_result_t
8787 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8788 {
8789 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8790 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8791
8792 switch (state) {
8793 case pci_channel_io_normal:
8794 /* Non-fatal error, prepare for recovery */
8795 lpfc_sli_prep_dev_for_recover(phba);
8796 return PCI_ERS_RESULT_CAN_RECOVER;
8797 case pci_channel_io_frozen:
8798 /* Fatal error, prepare for slot reset */
8799 lpfc_sli_prep_dev_for_reset(phba);
8800 return PCI_ERS_RESULT_NEED_RESET;
8801 case pci_channel_io_perm_failure:
8802 /* Permanent failure, prepare for device down */
8803 lpfc_sli_prep_dev_for_perm_failure(phba);
8804 return PCI_ERS_RESULT_DISCONNECT;
8805 default:
8806 /* Unknown state, prepare and request slot reset */
8807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8808 "0472 Unknown PCI error state: x%x\n", state);
8809 lpfc_sli_prep_dev_for_reset(phba);
8810 return PCI_ERS_RESULT_NEED_RESET;
8811 }
8812 }
8813
8814 /**
8815 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8816 * @pdev: pointer to PCI device.
8817 *
8818 * This routine is called from the PCI subsystem for error handling to
8819 * device with SLI-3 interface spec. This is called after PCI bus has been
8820 * reset to restart the PCI card from scratch, as if from a cold-boot.
8821 * During the PCI subsystem error recovery, after driver returns
8822 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8823 * recovery and then call this routine before calling the .resume method
8824 * to recover the device. This function will initialize the HBA device,
8825 * enable the interrupt, but it will just put the HBA to offline state
8826 * without passing any I/O traffic.
8827 *
8828 * Return codes
8829 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8830 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8831 */
8832 static pci_ers_result_t
8833 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8834 {
8835 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8836 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8837 struct lpfc_sli *psli = &phba->sli;
8838 uint32_t intr_mode;
8839
8840 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8841 if (pci_enable_device_mem(pdev)) {
8842 printk(KERN_ERR "lpfc: Cannot re-enable "
8843 "PCI device after reset.\n");
8844 return PCI_ERS_RESULT_DISCONNECT;
8845 }
8846
8847 pci_restore_state(pdev);
8848
8849 /*
8850 * As the new kernel behavior of pci_restore_state() API call clears
8851 * device saved_state flag, need to save the restored state again.
8852 */
8853 pci_save_state(pdev);
8854
8855 if (pdev->is_busmaster)
8856 pci_set_master(pdev);
8857
8858 spin_lock_irq(&phba->hbalock);
8859 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8860 spin_unlock_irq(&phba->hbalock);
8861
8862 /* Configure and enable interrupt */
8863 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8864 if (intr_mode == LPFC_INTR_ERROR) {
8865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8866 "0427 Cannot re-enable interrupt after "
8867 "slot reset.\n");
8868 return PCI_ERS_RESULT_DISCONNECT;
8869 } else
8870 phba->intr_mode = intr_mode;
8871
8872 /* Take device offline, it will perform cleanup */
8873 lpfc_offline_prep(phba);
8874 lpfc_offline(phba);
8875 lpfc_sli_brdrestart(phba);
8876
8877 /* Log the current active interrupt mode */
8878 lpfc_log_intr_mode(phba, phba->intr_mode);
8879
8880 return PCI_ERS_RESULT_RECOVERED;
8881 }
8882
8883 /**
8884 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8885 * @pdev: pointer to PCI device
8886 *
8887 * This routine is called from the PCI subsystem for error handling to device
8888 * with SLI-3 interface spec. It is called when kernel error recovery tells
8889 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8890 * error recovery. After this call, traffic can start to flow from this device
8891 * again.
8892 */
8893 static void
8894 lpfc_io_resume_s3(struct pci_dev *pdev)
8895 {
8896 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8897 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8898
8899 /* Bring device online, it will be no-op for non-fatal error resume */
8900 lpfc_online(phba);
8901
8902 /* Clean up Advanced Error Reporting (AER) if needed */
8903 if (phba->hba_flag & HBA_AER_ENABLED)
8904 pci_cleanup_aer_uncorrect_error_status(pdev);
8905 }
8906
8907 /**
8908 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8909 * @phba: pointer to lpfc hba data structure.
8910 *
8911 * returns the number of ELS/CT IOCBs to reserve
8912 **/
8913 int
8914 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8915 {
8916 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8917
8918 if (phba->sli_rev == LPFC_SLI_REV4) {
8919 if (max_xri <= 100)
8920 return 10;
8921 else if (max_xri <= 256)
8922 return 25;
8923 else if (max_xri <= 512)
8924 return 50;
8925 else if (max_xri <= 1024)
8926 return 100;
8927 else
8928 return 150;
8929 } else
8930 return 0;
8931 }
8932
8933 /**
8934 * lpfc_write_firmware - attempt to write a firmware image to the port
8935 * @phba: pointer to lpfc hba data structure.
8936 * @fw: pointer to firmware image returned from request_firmware.
8937 *
8938 * returns the number of bytes written if write is successful.
8939 * returns a negative error value if there were errors.
8940 * returns 0 if firmware matches currently active firmware on port.
8941 **/
8942 int
8943 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8944 {
8945 char fwrev[32];
8946 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8947 struct list_head dma_buffer_list;
8948 int i, rc = 0;
8949 struct lpfc_dmabuf *dmabuf, *next;
8950 uint32_t offset = 0, temp_offset = 0;
8951
8952 INIT_LIST_HEAD(&dma_buffer_list);
8953 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8954 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
8955 LPFC_FILE_TYPE_GROUP) ||
8956 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8957 (be32_to_cpu(image->size) != fw->size)) {
8958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8959 "3022 Invalid FW image found. "
8960 "Magic:%x Type:%x ID:%x\n",
8961 be32_to_cpu(image->magic_number),
8962 bf_get_be32(lpfc_grp_hdr_file_type, image),
8963 bf_get_be32(lpfc_grp_hdr_id, image));
8964 return -EINVAL;
8965 }
8966 lpfc_decode_firmware_rev(phba, fwrev, 1);
8967 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
8968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8969 "3023 Updating Firmware. Current Version:%s "
8970 "New Version:%s\n",
8971 fwrev, image->revision);
8972 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8973 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8974 GFP_KERNEL);
8975 if (!dmabuf) {
8976 rc = -ENOMEM;
8977 goto out;
8978 }
8979 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8980 SLI4_PAGE_SIZE,
8981 &dmabuf->phys,
8982 GFP_KERNEL);
8983 if (!dmabuf->virt) {
8984 kfree(dmabuf);
8985 rc = -ENOMEM;
8986 goto out;
8987 }
8988 list_add_tail(&dmabuf->list, &dma_buffer_list);
8989 }
8990 while (offset < fw->size) {
8991 temp_offset = offset;
8992 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8993 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
8994 memcpy(dmabuf->virt,
8995 fw->data + temp_offset,
8996 fw->size - temp_offset);
8997 temp_offset = fw->size;
8998 break;
8999 }
9000 memcpy(dmabuf->virt, fw->data + temp_offset,
9001 SLI4_PAGE_SIZE);
9002 temp_offset += SLI4_PAGE_SIZE;
9003 }
9004 rc = lpfc_wr_object(phba, &dma_buffer_list,
9005 (fw->size - offset), &offset);
9006 if (rc) {
9007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9008 "3024 Firmware update failed. "
9009 "%d\n", rc);
9010 goto out;
9011 }
9012 }
9013 rc = offset;
9014 }
9015 out:
9016 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9017 list_del(&dmabuf->list);
9018 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9019 dmabuf->virt, dmabuf->phys);
9020 kfree(dmabuf);
9021 }
9022 return rc;
9023 }
9024
9025 /**
9026 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9027 * @pdev: pointer to PCI device
9028 * @pid: pointer to PCI device identifier
9029 *
9030 * This routine is called from the kernel's PCI subsystem to device with
9031 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9032 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9033 * information of the device and driver to see if the driver state that it
9034 * can support this kind of device. If the match is successful, the driver
9035 * core invokes this routine. If this routine determines it can claim the HBA,
9036 * it does all the initialization that it needs to do to handle the HBA
9037 * properly.
9038 *
9039 * Return code
9040 * 0 - driver can claim the device
9041 * negative value - driver can not claim the device
9042 **/
9043 static int __devinit
9044 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9045 {
9046 struct lpfc_hba *phba;
9047 struct lpfc_vport *vport = NULL;
9048 struct Scsi_Host *shost = NULL;
9049 int error;
9050 uint32_t cfg_mode, intr_mode;
9051 int mcnt;
9052 int adjusted_fcp_eq_count;
9053 const struct firmware *fw;
9054 uint8_t file_name[16];
9055
9056 /* Allocate memory for HBA structure */
9057 phba = lpfc_hba_alloc(pdev);
9058 if (!phba)
9059 return -ENOMEM;
9060
9061 /* Perform generic PCI device enabling operation */
9062 error = lpfc_enable_pci_dev(phba);
9063 if (error)
9064 goto out_free_phba;
9065
9066 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9067 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9068 if (error)
9069 goto out_disable_pci_dev;
9070
9071 /* Set up SLI-4 specific device PCI memory space */
9072 error = lpfc_sli4_pci_mem_setup(phba);
9073 if (error) {
9074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9075 "1410 Failed to set up pci memory space.\n");
9076 goto out_disable_pci_dev;
9077 }
9078
9079 /* Set up phase-1 common device driver resources */
9080 error = lpfc_setup_driver_resource_phase1(phba);
9081 if (error) {
9082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9083 "1411 Failed to set up driver resource.\n");
9084 goto out_unset_pci_mem_s4;
9085 }
9086
9087 /* Set up SLI-4 Specific device driver resources */
9088 error = lpfc_sli4_driver_resource_setup(phba);
9089 if (error) {
9090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9091 "1412 Failed to set up driver resource.\n");
9092 goto out_unset_pci_mem_s4;
9093 }
9094
9095 /* Initialize and populate the iocb list per host */
9096
9097 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9098 "2821 initialize iocb list %d.\n",
9099 phba->cfg_iocb_cnt*1024);
9100 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9101
9102 if (error) {
9103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9104 "1413 Failed to initialize iocb list.\n");
9105 goto out_unset_driver_resource_s4;
9106 }
9107
9108 INIT_LIST_HEAD(&phba->active_rrq_list);
9109 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9110
9111 /* Set up common device driver resources */
9112 error = lpfc_setup_driver_resource_phase2(phba);
9113 if (error) {
9114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9115 "1414 Failed to set up driver resource.\n");
9116 goto out_free_iocb_list;
9117 }
9118
9119 /* Get the default values for Model Name and Description */
9120 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9121
9122 /* Create SCSI host to the physical port */
9123 error = lpfc_create_shost(phba);
9124 if (error) {
9125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9126 "1415 Failed to create scsi host.\n");
9127 goto out_unset_driver_resource;
9128 }
9129
9130 /* Configure sysfs attributes */
9131 vport = phba->pport;
9132 error = lpfc_alloc_sysfs_attr(vport);
9133 if (error) {
9134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9135 "1416 Failed to allocate sysfs attr\n");
9136 goto out_destroy_shost;
9137 }
9138
9139 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9140 /* Now, trying to enable interrupt and bring up the device */
9141 cfg_mode = phba->cfg_use_msi;
9142 while (true) {
9143 /* Put device to a known state before enabling interrupt */
9144 lpfc_stop_port(phba);
9145 /* Configure and enable interrupt */
9146 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9147 if (intr_mode == LPFC_INTR_ERROR) {
9148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9149 "0426 Failed to enable interrupt.\n");
9150 error = -ENODEV;
9151 goto out_free_sysfs_attr;
9152 }
9153 /* Default to single EQ for non-MSI-X */
9154 if (phba->intr_type != MSIX)
9155 adjusted_fcp_eq_count = 0;
9156 else if (phba->sli4_hba.msix_vec_nr <
9157 phba->cfg_fcp_eq_count + 1)
9158 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9159 else
9160 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9161 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9162 /* Set up SLI-4 HBA */
9163 if (lpfc_sli4_hba_setup(phba)) {
9164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9165 "1421 Failed to set up hba\n");
9166 error = -ENODEV;
9167 goto out_disable_intr;
9168 }
9169
9170 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9171 if (intr_mode != 0)
9172 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9173 LPFC_ACT_INTR_CNT);
9174
9175 /* Check active interrupts received only for MSI/MSI-X */
9176 if (intr_mode == 0 ||
9177 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9178 /* Log the current active interrupt mode */
9179 phba->intr_mode = intr_mode;
9180 lpfc_log_intr_mode(phba, intr_mode);
9181 break;
9182 }
9183 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9184 "0451 Configure interrupt mode (%d) "
9185 "failed active interrupt test.\n",
9186 intr_mode);
9187 /* Unset the previous SLI-4 HBA setup. */
9188 /*
9189 * TODO: Is this operation compatible with IF TYPE 2
9190 * devices? All port state is deleted and cleared.
9191 */
9192 lpfc_sli4_unset_hba(phba);
9193 /* Try next level of interrupt mode */
9194 cfg_mode = --intr_mode;
9195 }
9196
9197 /* Perform post initialization setup */
9198 lpfc_post_init_setup(phba);
9199
9200 /* check for firmware upgrade or downgrade */
9201 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9202 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9203 if (!error) {
9204 lpfc_write_firmware(phba, fw);
9205 release_firmware(fw);
9206 }
9207
9208 /* Check if there are static vports to be created. */
9209 lpfc_create_static_vport(phba);
9210 return 0;
9211
9212 out_disable_intr:
9213 lpfc_sli4_disable_intr(phba);
9214 out_free_sysfs_attr:
9215 lpfc_free_sysfs_attr(vport);
9216 out_destroy_shost:
9217 lpfc_destroy_shost(phba);
9218 out_unset_driver_resource:
9219 lpfc_unset_driver_resource_phase2(phba);
9220 out_free_iocb_list:
9221 lpfc_free_iocb_list(phba);
9222 out_unset_driver_resource_s4:
9223 lpfc_sli4_driver_resource_unset(phba);
9224 out_unset_pci_mem_s4:
9225 lpfc_sli4_pci_mem_unset(phba);
9226 out_disable_pci_dev:
9227 lpfc_disable_pci_dev(phba);
9228 if (shost)
9229 scsi_host_put(shost);
9230 out_free_phba:
9231 lpfc_hba_free(phba);
9232 return error;
9233 }
9234
9235 /**
9236 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9237 * @pdev: pointer to PCI device
9238 *
9239 * This routine is called from the kernel's PCI subsystem to device with
9240 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9241 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9242 * device to be removed from the PCI subsystem properly.
9243 **/
9244 static void __devexit
9245 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9246 {
9247 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9248 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9249 struct lpfc_vport **vports;
9250 struct lpfc_hba *phba = vport->phba;
9251 int i;
9252
9253 /* Mark the device unloading flag */
9254 spin_lock_irq(&phba->hbalock);
9255 vport->load_flag |= FC_UNLOADING;
9256 spin_unlock_irq(&phba->hbalock);
9257
9258 /* Free the HBA sysfs attributes */
9259 lpfc_free_sysfs_attr(vport);
9260
9261 /* Release all the vports against this physical port */
9262 vports = lpfc_create_vport_work_array(phba);
9263 if (vports != NULL)
9264 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9265 fc_vport_terminate(vports[i]->fc_vport);
9266 lpfc_destroy_vport_work_array(phba, vports);
9267
9268 /* Remove FC host and then SCSI host with the physical port */
9269 fc_remove_host(shost);
9270 scsi_remove_host(shost);
9271
9272 /* Perform cleanup on the physical port */
9273 lpfc_cleanup(vport);
9274
9275 /*
9276 * Bring down the SLI Layer. This step disables all interrupts,
9277 * clears the rings, discards all mailbox commands, and resets
9278 * the HBA FCoE function.
9279 */
9280 lpfc_debugfs_terminate(vport);
9281 lpfc_sli4_hba_unset(phba);
9282
9283 spin_lock_irq(&phba->hbalock);
9284 list_del_init(&vport->listentry);
9285 spin_unlock_irq(&phba->hbalock);
9286
9287 /* Perform scsi free before driver resource_unset since scsi
9288 * buffers are released to their corresponding pools here.
9289 */
9290 lpfc_scsi_free(phba);
9291 lpfc_sli4_driver_resource_unset(phba);
9292
9293 /* Unmap adapter Control and Doorbell registers */
9294 lpfc_sli4_pci_mem_unset(phba);
9295
9296 /* Release PCI resources and disable device's PCI function */
9297 scsi_host_put(shost);
9298 lpfc_disable_pci_dev(phba);
9299
9300 /* Finally, free the driver's device data structure */
9301 lpfc_hba_free(phba);
9302
9303 return;
9304 }
9305
9306 /**
9307 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9308 * @pdev: pointer to PCI device
9309 * @msg: power management message
9310 *
9311 * This routine is called from the kernel's PCI subsystem to support system
9312 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9313 * this method, it quiesces the device by stopping the driver's worker
9314 * thread for the device, turning off device's interrupt and DMA, and bring
9315 * the device offline. Note that as the driver implements the minimum PM
9316 * requirements to a power-aware driver's PM support for suspend/resume -- all
9317 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9318 * method call will be treated as SUSPEND and the driver will fully
9319 * reinitialize its device during resume() method call, the driver will set
9320 * device to PCI_D3hot state in PCI config space instead of setting it
9321 * according to the @msg provided by the PM.
9322 *
9323 * Return code
9324 * 0 - driver suspended the device
9325 * Error otherwise
9326 **/
9327 static int
9328 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9329 {
9330 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9331 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9332
9333 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9334 "2843 PCI device Power Management suspend.\n");
9335
9336 /* Bring down the device */
9337 lpfc_offline_prep(phba);
9338 lpfc_offline(phba);
9339 kthread_stop(phba->worker_thread);
9340
9341 /* Disable interrupt from device */
9342 lpfc_sli4_disable_intr(phba);
9343 lpfc_sli4_queue_destroy(phba);
9344
9345 /* Save device state to PCI config space */
9346 pci_save_state(pdev);
9347 pci_set_power_state(pdev, PCI_D3hot);
9348
9349 return 0;
9350 }
9351
9352 /**
9353 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9354 * @pdev: pointer to PCI device
9355 *
9356 * This routine is called from the kernel's PCI subsystem to support system
9357 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9358 * this method, it restores the device's PCI config space state and fully
9359 * reinitializes the device and brings it online. Note that as the driver
9360 * implements the minimum PM requirements to a power-aware driver's PM for
9361 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9362 * to the suspend() method call will be treated as SUSPEND and the driver
9363 * will fully reinitialize its device during resume() method call, the device
9364 * will be set to PCI_D0 directly in PCI config space before restoring the
9365 * state.
9366 *
9367 * Return code
9368 * 0 - driver suspended the device
9369 * Error otherwise
9370 **/
9371 static int
9372 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9373 {
9374 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9375 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9376 uint32_t intr_mode;
9377 int error;
9378
9379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9380 "0292 PCI device Power Management resume.\n");
9381
9382 /* Restore device state from PCI config space */
9383 pci_set_power_state(pdev, PCI_D0);
9384 pci_restore_state(pdev);
9385
9386 /*
9387 * As the new kernel behavior of pci_restore_state() API call clears
9388 * device saved_state flag, need to save the restored state again.
9389 */
9390 pci_save_state(pdev);
9391
9392 if (pdev->is_busmaster)
9393 pci_set_master(pdev);
9394
9395 /* Startup the kernel thread for this host adapter. */
9396 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9397 "lpfc_worker_%d", phba->brd_no);
9398 if (IS_ERR(phba->worker_thread)) {
9399 error = PTR_ERR(phba->worker_thread);
9400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9401 "0293 PM resume failed to start worker "
9402 "thread: error=x%x.\n", error);
9403 return error;
9404 }
9405
9406 /* Configure and enable interrupt */
9407 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9408 if (intr_mode == LPFC_INTR_ERROR) {
9409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9410 "0294 PM resume Failed to enable interrupt\n");
9411 return -EIO;
9412 } else
9413 phba->intr_mode = intr_mode;
9414
9415 /* Restart HBA and bring it online */
9416 lpfc_sli_brdrestart(phba);
9417 lpfc_online(phba);
9418
9419 /* Log the current active interrupt mode */
9420 lpfc_log_intr_mode(phba, phba->intr_mode);
9421
9422 return 0;
9423 }
9424
9425 /**
9426 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9427 * @phba: pointer to lpfc hba data structure.
9428 *
9429 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9430 * aborts all the outstanding SCSI I/Os to the pci device.
9431 **/
9432 static void
9433 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9434 {
9435 struct lpfc_sli *psli = &phba->sli;
9436 struct lpfc_sli_ring *pring;
9437
9438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9439 "2828 PCI channel I/O abort preparing for recovery\n");
9440 /*
9441 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9442 * and let the SCSI mid-layer to retry them to recover.
9443 */
9444 pring = &psli->ring[psli->fcp_ring];
9445 lpfc_sli_abort_iocb_ring(phba, pring);
9446 }
9447
9448 /**
9449 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9450 * @phba: pointer to lpfc hba data structure.
9451 *
9452 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9453 * disables the device interrupt and pci device, and aborts the internal FCP
9454 * pending I/Os.
9455 **/
9456 static void
9457 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9458 {
9459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9460 "2826 PCI channel disable preparing for reset\n");
9461
9462 /* Block any management I/Os to the device */
9463 lpfc_block_mgmt_io(phba);
9464
9465 /* Block all SCSI devices' I/Os on the host */
9466 lpfc_scsi_dev_block(phba);
9467
9468 /* stop all timers */
9469 lpfc_stop_hba_timers(phba);
9470
9471 /* Disable interrupt and pci device */
9472 lpfc_sli4_disable_intr(phba);
9473 lpfc_sli4_queue_destroy(phba);
9474 pci_disable_device(phba->pcidev);
9475
9476 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9477 lpfc_sli_flush_fcp_rings(phba);
9478 }
9479
9480 /**
9481 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9482 * @phba: pointer to lpfc hba data structure.
9483 *
9484 * This routine is called to prepare the SLI4 device for PCI slot permanently
9485 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9486 * pending I/Os.
9487 **/
9488 static void
9489 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9490 {
9491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9492 "2827 PCI channel permanent disable for failure\n");
9493
9494 /* Block all SCSI devices' I/Os on the host */
9495 lpfc_scsi_dev_block(phba);
9496
9497 /* stop all timers */
9498 lpfc_stop_hba_timers(phba);
9499
9500 /* Clean up all driver's outstanding SCSI I/Os */
9501 lpfc_sli_flush_fcp_rings(phba);
9502 }
9503
9504 /**
9505 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9506 * @pdev: pointer to PCI device.
9507 * @state: the current PCI connection state.
9508 *
9509 * This routine is called from the PCI subsystem for error handling to device
9510 * with SLI-4 interface spec. This function is called by the PCI subsystem
9511 * after a PCI bus error affecting this device has been detected. When this
9512 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9513 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9514 * for the PCI subsystem to perform proper recovery as desired.
9515 *
9516 * Return codes
9517 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9518 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9519 **/
9520 static pci_ers_result_t
9521 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9522 {
9523 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9524 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9525
9526 switch (state) {
9527 case pci_channel_io_normal:
9528 /* Non-fatal error, prepare for recovery */
9529 lpfc_sli4_prep_dev_for_recover(phba);
9530 return PCI_ERS_RESULT_CAN_RECOVER;
9531 case pci_channel_io_frozen:
9532 /* Fatal error, prepare for slot reset */
9533 lpfc_sli4_prep_dev_for_reset(phba);
9534 return PCI_ERS_RESULT_NEED_RESET;
9535 case pci_channel_io_perm_failure:
9536 /* Permanent failure, prepare for device down */
9537 lpfc_sli4_prep_dev_for_perm_failure(phba);
9538 return PCI_ERS_RESULT_DISCONNECT;
9539 default:
9540 /* Unknown state, prepare and request slot reset */
9541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9542 "2825 Unknown PCI error state: x%x\n", state);
9543 lpfc_sli4_prep_dev_for_reset(phba);
9544 return PCI_ERS_RESULT_NEED_RESET;
9545 }
9546 }
9547
9548 /**
9549 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9550 * @pdev: pointer to PCI device.
9551 *
9552 * This routine is called from the PCI subsystem for error handling to device
9553 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9554 * restart the PCI card from scratch, as if from a cold-boot. During the
9555 * PCI subsystem error recovery, after the driver returns
9556 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9557 * recovery and then call this routine before calling the .resume method to
9558 * recover the device. This function will initialize the HBA device, enable
9559 * the interrupt, but it will just put the HBA to offline state without
9560 * passing any I/O traffic.
9561 *
9562 * Return codes
9563 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9564 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9565 */
9566 static pci_ers_result_t
9567 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9568 {
9569 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9570 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9571 struct lpfc_sli *psli = &phba->sli;
9572 uint32_t intr_mode;
9573
9574 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9575 if (pci_enable_device_mem(pdev)) {
9576 printk(KERN_ERR "lpfc: Cannot re-enable "
9577 "PCI device after reset.\n");
9578 return PCI_ERS_RESULT_DISCONNECT;
9579 }
9580
9581 pci_restore_state(pdev);
9582
9583 /*
9584 * As the new kernel behavior of pci_restore_state() API call clears
9585 * device saved_state flag, need to save the restored state again.
9586 */
9587 pci_save_state(pdev);
9588
9589 if (pdev->is_busmaster)
9590 pci_set_master(pdev);
9591
9592 spin_lock_irq(&phba->hbalock);
9593 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9594 spin_unlock_irq(&phba->hbalock);
9595
9596 /* Configure and enable interrupt */
9597 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9598 if (intr_mode == LPFC_INTR_ERROR) {
9599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9600 "2824 Cannot re-enable interrupt after "
9601 "slot reset.\n");
9602 return PCI_ERS_RESULT_DISCONNECT;
9603 } else
9604 phba->intr_mode = intr_mode;
9605
9606 /* Log the current active interrupt mode */
9607 lpfc_log_intr_mode(phba, phba->intr_mode);
9608
9609 return PCI_ERS_RESULT_RECOVERED;
9610 }
9611
9612 /**
9613 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9614 * @pdev: pointer to PCI device
9615 *
9616 * This routine is called from the PCI subsystem for error handling to device
9617 * with SLI-4 interface spec. It is called when kernel error recovery tells
9618 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9619 * error recovery. After this call, traffic can start to flow from this device
9620 * again.
9621 **/
9622 static void
9623 lpfc_io_resume_s4(struct pci_dev *pdev)
9624 {
9625 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9626 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9627
9628 /*
9629 * In case of slot reset, as function reset is performed through
9630 * mailbox command which needs DMA to be enabled, this operation
9631 * has to be moved to the io resume phase. Taking device offline
9632 * will perform the necessary cleanup.
9633 */
9634 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9635 /* Perform device reset */
9636 lpfc_offline_prep(phba);
9637 lpfc_offline(phba);
9638 lpfc_sli_brdrestart(phba);
9639 /* Bring the device back online */
9640 lpfc_online(phba);
9641 }
9642
9643 /* Clean up Advanced Error Reporting (AER) if needed */
9644 if (phba->hba_flag & HBA_AER_ENABLED)
9645 pci_cleanup_aer_uncorrect_error_status(pdev);
9646 }
9647
9648 /**
9649 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9650 * @pdev: pointer to PCI device
9651 * @pid: pointer to PCI device identifier
9652 *
9653 * This routine is to be registered to the kernel's PCI subsystem. When an
9654 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9655 * at PCI device-specific information of the device and driver to see if the
9656 * driver state that it can support this kind of device. If the match is
9657 * successful, the driver core invokes this routine. This routine dispatches
9658 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9659 * do all the initialization that it needs to do to handle the HBA device
9660 * properly.
9661 *
9662 * Return code
9663 * 0 - driver can claim the device
9664 * negative value - driver can not claim the device
9665 **/
9666 static int __devinit
9667 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9668 {
9669 int rc;
9670 struct lpfc_sli_intf intf;
9671
9672 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9673 return -ENODEV;
9674
9675 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9676 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9677 rc = lpfc_pci_probe_one_s4(pdev, pid);
9678 else
9679 rc = lpfc_pci_probe_one_s3(pdev, pid);
9680
9681 return rc;
9682 }
9683
9684 /**
9685 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9686 * @pdev: pointer to PCI device
9687 *
9688 * This routine is to be registered to the kernel's PCI subsystem. When an
9689 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9690 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9691 * remove routine, which will perform all the necessary cleanup for the
9692 * device to be removed from the PCI subsystem properly.
9693 **/
9694 static void __devexit
9695 lpfc_pci_remove_one(struct pci_dev *pdev)
9696 {
9697 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9698 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9699
9700 switch (phba->pci_dev_grp) {
9701 case LPFC_PCI_DEV_LP:
9702 lpfc_pci_remove_one_s3(pdev);
9703 break;
9704 case LPFC_PCI_DEV_OC:
9705 lpfc_pci_remove_one_s4(pdev);
9706 break;
9707 default:
9708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9709 "1424 Invalid PCI device group: 0x%x\n",
9710 phba->pci_dev_grp);
9711 break;
9712 }
9713 return;
9714 }
9715
9716 /**
9717 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9718 * @pdev: pointer to PCI device
9719 * @msg: power management message
9720 *
9721 * This routine is to be registered to the kernel's PCI subsystem to support
9722 * system Power Management (PM). When PM invokes this method, it dispatches
9723 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9724 * suspend the device.
9725 *
9726 * Return code
9727 * 0 - driver suspended the device
9728 * Error otherwise
9729 **/
9730 static int
9731 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9732 {
9733 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9734 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9735 int rc = -ENODEV;
9736
9737 switch (phba->pci_dev_grp) {
9738 case LPFC_PCI_DEV_LP:
9739 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9740 break;
9741 case LPFC_PCI_DEV_OC:
9742 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9743 break;
9744 default:
9745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9746 "1425 Invalid PCI device group: 0x%x\n",
9747 phba->pci_dev_grp);
9748 break;
9749 }
9750 return rc;
9751 }
9752
9753 /**
9754 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9755 * @pdev: pointer to PCI device
9756 *
9757 * This routine is to be registered to the kernel's PCI subsystem to support
9758 * system Power Management (PM). When PM invokes this method, it dispatches
9759 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9760 * resume the device.
9761 *
9762 * Return code
9763 * 0 - driver suspended the device
9764 * Error otherwise
9765 **/
9766 static int
9767 lpfc_pci_resume_one(struct pci_dev *pdev)
9768 {
9769 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9770 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9771 int rc = -ENODEV;
9772
9773 switch (phba->pci_dev_grp) {
9774 case LPFC_PCI_DEV_LP:
9775 rc = lpfc_pci_resume_one_s3(pdev);
9776 break;
9777 case LPFC_PCI_DEV_OC:
9778 rc = lpfc_pci_resume_one_s4(pdev);
9779 break;
9780 default:
9781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9782 "1426 Invalid PCI device group: 0x%x\n",
9783 phba->pci_dev_grp);
9784 break;
9785 }
9786 return rc;
9787 }
9788
9789 /**
9790 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9791 * @pdev: pointer to PCI device.
9792 * @state: the current PCI connection state.
9793 *
9794 * This routine is registered to the PCI subsystem for error handling. This
9795 * function is called by the PCI subsystem after a PCI bus error affecting
9796 * this device has been detected. When this routine is invoked, it dispatches
9797 * the action to the proper SLI-3 or SLI-4 device error detected handling
9798 * routine, which will perform the proper error detected operation.
9799 *
9800 * Return codes
9801 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9802 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9803 **/
9804 static pci_ers_result_t
9805 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9806 {
9807 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9808 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9809 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9810
9811 switch (phba->pci_dev_grp) {
9812 case LPFC_PCI_DEV_LP:
9813 rc = lpfc_io_error_detected_s3(pdev, state);
9814 break;
9815 case LPFC_PCI_DEV_OC:
9816 rc = lpfc_io_error_detected_s4(pdev, state);
9817 break;
9818 default:
9819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9820 "1427 Invalid PCI device group: 0x%x\n",
9821 phba->pci_dev_grp);
9822 break;
9823 }
9824 return rc;
9825 }
9826
9827 /**
9828 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9829 * @pdev: pointer to PCI device.
9830 *
9831 * This routine is registered to the PCI subsystem for error handling. This
9832 * function is called after PCI bus has been reset to restart the PCI card
9833 * from scratch, as if from a cold-boot. When this routine is invoked, it
9834 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9835 * routine, which will perform the proper device reset.
9836 *
9837 * Return codes
9838 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9839 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9840 **/
9841 static pci_ers_result_t
9842 lpfc_io_slot_reset(struct pci_dev *pdev)
9843 {
9844 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9845 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9846 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9847
9848 switch (phba->pci_dev_grp) {
9849 case LPFC_PCI_DEV_LP:
9850 rc = lpfc_io_slot_reset_s3(pdev);
9851 break;
9852 case LPFC_PCI_DEV_OC:
9853 rc = lpfc_io_slot_reset_s4(pdev);
9854 break;
9855 default:
9856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9857 "1428 Invalid PCI device group: 0x%x\n",
9858 phba->pci_dev_grp);
9859 break;
9860 }
9861 return rc;
9862 }
9863
9864 /**
9865 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9866 * @pdev: pointer to PCI device
9867 *
9868 * This routine is registered to the PCI subsystem for error handling. It
9869 * is called when kernel error recovery tells the lpfc driver that it is
9870 * OK to resume normal PCI operation after PCI bus error recovery. When
9871 * this routine is invoked, it dispatches the action to the proper SLI-3
9872 * or SLI-4 device io_resume routine, which will resume the device operation.
9873 **/
9874 static void
9875 lpfc_io_resume(struct pci_dev *pdev)
9876 {
9877 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9878 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9879
9880 switch (phba->pci_dev_grp) {
9881 case LPFC_PCI_DEV_LP:
9882 lpfc_io_resume_s3(pdev);
9883 break;
9884 case LPFC_PCI_DEV_OC:
9885 lpfc_io_resume_s4(pdev);
9886 break;
9887 default:
9888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9889 "1429 Invalid PCI device group: 0x%x\n",
9890 phba->pci_dev_grp);
9891 break;
9892 }
9893 return;
9894 }
9895
9896 static struct pci_device_id lpfc_id_table[] = {
9897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9898 PCI_ANY_ID, PCI_ANY_ID, },
9899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9900 PCI_ANY_ID, PCI_ANY_ID, },
9901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9902 PCI_ANY_ID, PCI_ANY_ID, },
9903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9904 PCI_ANY_ID, PCI_ANY_ID, },
9905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9906 PCI_ANY_ID, PCI_ANY_ID, },
9907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9908 PCI_ANY_ID, PCI_ANY_ID, },
9909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9910 PCI_ANY_ID, PCI_ANY_ID, },
9911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9912 PCI_ANY_ID, PCI_ANY_ID, },
9913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9914 PCI_ANY_ID, PCI_ANY_ID, },
9915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9916 PCI_ANY_ID, PCI_ANY_ID, },
9917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9918 PCI_ANY_ID, PCI_ANY_ID, },
9919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9920 PCI_ANY_ID, PCI_ANY_ID, },
9921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9922 PCI_ANY_ID, PCI_ANY_ID, },
9923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9924 PCI_ANY_ID, PCI_ANY_ID, },
9925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9926 PCI_ANY_ID, PCI_ANY_ID, },
9927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9928 PCI_ANY_ID, PCI_ANY_ID, },
9929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9930 PCI_ANY_ID, PCI_ANY_ID, },
9931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9932 PCI_ANY_ID, PCI_ANY_ID, },
9933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9934 PCI_ANY_ID, PCI_ANY_ID, },
9935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9936 PCI_ANY_ID, PCI_ANY_ID, },
9937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9938 PCI_ANY_ID, PCI_ANY_ID, },
9939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9940 PCI_ANY_ID, PCI_ANY_ID, },
9941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9942 PCI_ANY_ID, PCI_ANY_ID, },
9943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9944 PCI_ANY_ID, PCI_ANY_ID, },
9945 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9946 PCI_ANY_ID, PCI_ANY_ID, },
9947 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9948 PCI_ANY_ID, PCI_ANY_ID, },
9949 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9950 PCI_ANY_ID, PCI_ANY_ID, },
9951 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9952 PCI_ANY_ID, PCI_ANY_ID, },
9953 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9954 PCI_ANY_ID, PCI_ANY_ID, },
9955 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9956 PCI_ANY_ID, PCI_ANY_ID, },
9957 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9958 PCI_ANY_ID, PCI_ANY_ID, },
9959 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9960 PCI_ANY_ID, PCI_ANY_ID, },
9961 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9962 PCI_ANY_ID, PCI_ANY_ID, },
9963 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9964 PCI_ANY_ID, PCI_ANY_ID, },
9965 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9966 PCI_ANY_ID, PCI_ANY_ID, },
9967 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9968 PCI_ANY_ID, PCI_ANY_ID, },
9969 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9970 PCI_ANY_ID, PCI_ANY_ID, },
9971 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9972 PCI_ANY_ID, PCI_ANY_ID, },
9973 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9974 PCI_ANY_ID, PCI_ANY_ID, },
9975 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9976 PCI_ANY_ID, PCI_ANY_ID, },
9977 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9978 PCI_ANY_ID, PCI_ANY_ID, },
9979 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9980 PCI_ANY_ID, PCI_ANY_ID, },
9981 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9982 PCI_ANY_ID, PCI_ANY_ID, },
9983 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9984 PCI_ANY_ID, PCI_ANY_ID, },
9985 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9986 PCI_ANY_ID, PCI_ANY_ID, },
9987 { 0 }
9988 };
9989
9990 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9991
9992 static struct pci_error_handlers lpfc_err_handler = {
9993 .error_detected = lpfc_io_error_detected,
9994 .slot_reset = lpfc_io_slot_reset,
9995 .resume = lpfc_io_resume,
9996 };
9997
9998 static struct pci_driver lpfc_driver = {
9999 .name = LPFC_DRIVER_NAME,
10000 .id_table = lpfc_id_table,
10001 .probe = lpfc_pci_probe_one,
10002 .remove = __devexit_p(lpfc_pci_remove_one),
10003 .suspend = lpfc_pci_suspend_one,
10004 .resume = lpfc_pci_resume_one,
10005 .err_handler = &lpfc_err_handler,
10006 };
10007
10008 /**
10009 * lpfc_init - lpfc module initialization routine
10010 *
10011 * This routine is to be invoked when the lpfc module is loaded into the
10012 * kernel. The special kernel macro module_init() is used to indicate the
10013 * role of this routine to the kernel as lpfc module entry point.
10014 *
10015 * Return codes
10016 * 0 - successful
10017 * -ENOMEM - FC attach transport failed
10018 * all others - failed
10019 */
10020 static int __init
10021 lpfc_init(void)
10022 {
10023 int error = 0;
10024
10025 printk(LPFC_MODULE_DESC "\n");
10026 printk(LPFC_COPYRIGHT "\n");
10027
10028 if (lpfc_enable_npiv) {
10029 lpfc_transport_functions.vport_create = lpfc_vport_create;
10030 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10031 }
10032 lpfc_transport_template =
10033 fc_attach_transport(&lpfc_transport_functions);
10034 if (lpfc_transport_template == NULL)
10035 return -ENOMEM;
10036 if (lpfc_enable_npiv) {
10037 lpfc_vport_transport_template =
10038 fc_attach_transport(&lpfc_vport_transport_functions);
10039 if (lpfc_vport_transport_template == NULL) {
10040 fc_release_transport(lpfc_transport_template);
10041 return -ENOMEM;
10042 }
10043 }
10044 error = pci_register_driver(&lpfc_driver);
10045 if (error) {
10046 fc_release_transport(lpfc_transport_template);
10047 if (lpfc_enable_npiv)
10048 fc_release_transport(lpfc_vport_transport_template);
10049 }
10050
10051 return error;
10052 }
10053
10054 /**
10055 * lpfc_exit - lpfc module removal routine
10056 *
10057 * This routine is invoked when the lpfc module is removed from the kernel.
10058 * The special kernel macro module_exit() is used to indicate the role of
10059 * this routine to the kernel as lpfc module exit point.
10060 */
10061 static void __exit
10062 lpfc_exit(void)
10063 {
10064 pci_unregister_driver(&lpfc_driver);
10065 fc_release_transport(lpfc_transport_template);
10066 if (lpfc_enable_npiv)
10067 fc_release_transport(lpfc_vport_transport_template);
10068 if (_dump_buf_data) {
10069 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10070 "_dump_buf_data at 0x%p\n",
10071 (1L << _dump_buf_data_order), _dump_buf_data);
10072 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10073 }
10074
10075 if (_dump_buf_dif) {
10076 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10077 "_dump_buf_dif at 0x%p\n",
10078 (1L << _dump_buf_dif_order), _dump_buf_dif);
10079 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10080 }
10081 }
10082
10083 module_init(lpfc_init);
10084 module_exit(lpfc_exit);
10085 MODULE_LICENSE("GPL");
10086 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10087 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10088 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree