1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 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/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_transport_fc.h>
29 #include <scsi/scsi.h>
30 #include <scsi/fc/fc_fs.h>
31
32 #include "lpfc_hw4.h"
33 #include "lpfc_hw.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_sli4.h"
36 #include "lpfc_nl.h"
37 #include "lpfc_disc.h"
38 #include "lpfc_scsi.h"
39 #include "lpfc.h"
40 #include "lpfc_logmsg.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_compat.h"
43
44 /**
45 * lpfc_dump_static_vport - Dump HBA's static vport information.
46 * @phba: pointer to lpfc hba data structure.
47 * @pmb: pointer to the driver internal queue element for mailbox command.
48 * @offset: offset for dumping vport info.
49 *
50 * The dump mailbox command provides a method for the device driver to obtain
51 * various types of information from the HBA device.
52 *
53 * This routine prepares the mailbox command for dumping list of static
54 * vports to be created.
55 **/
56 int
lpfc_dump_static_vport(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb,uint16_t offset)57 lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
58 uint16_t offset)
59 {
60 MAILBOX_t *mb;
61 struct lpfc_dmabuf *mp;
62
63 mb = &pmb->u.mb;
64
65 /* Setup to dump vport info region */
66 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
67 mb->mbxCommand = MBX_DUMP_MEMORY;
68 mb->un.varDmp.type = DMP_NV_PARAMS;
69 mb->un.varDmp.entry_index = offset;
70 mb->un.varDmp.region_id = DMP_REGION_VPORT;
71 mb->mbxOwner = OWN_HOST;
72
73 /* For SLI3 HBAs data is embedded in mailbox */
74 if (phba->sli_rev != LPFC_SLI_REV4) {
75 mb->un.varDmp.cv = 1;
76 mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t);
77 return 0;
78 }
79
80 /* For SLI4 HBAs driver need to allocate memory */
81 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
82 if (mp)
83 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
84
85 if (!mp || !mp->virt) {
86 kfree(mp);
87 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
88 "2605 lpfc_dump_static_vport: memory"
89 " allocation failed\n");
90 return 1;
91 }
92 memset(mp->virt, 0, LPFC_BPL_SIZE);
93 INIT_LIST_HEAD(&mp->list);
94 /* save address for completion */
95 pmb->context2 = (uint8_t *) mp;
96 mb->un.varWords[3] = putPaddrLow(mp->phys);
97 mb->un.varWords[4] = putPaddrHigh(mp->phys);
98 mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);
99
100 return 0;
101 }
102
103 /**
104 * lpfc_down_link - Bring down HBAs link.
105 * @phba: pointer to lpfc hba data structure.
106 * @pmb: pointer to the driver internal queue element for mailbox command.
107 *
108 * This routine prepares a mailbox command to bring down HBA link.
109 **/
110 void
lpfc_down_link(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)111 lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
112 {
113 MAILBOX_t *mb;
114 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
115 mb = &pmb->u.mb;
116 mb->mbxCommand = MBX_DOWN_LINK;
117 mb->mbxOwner = OWN_HOST;
118 }
119
120 /**
121 * lpfc_dump_mem - Prepare a mailbox command for reading a region.
122 * @phba: pointer to lpfc hba data structure.
123 * @pmb: pointer to the driver internal queue element for mailbox command.
124 * @offset: offset into the region.
125 * @region_id: config region id.
126 *
127 * The dump mailbox command provides a method for the device driver to obtain
128 * various types of information from the HBA device.
129 *
130 * This routine prepares the mailbox command for dumping HBA's config region.
131 **/
132 void
lpfc_dump_mem(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb,uint16_t offset,uint16_t region_id)133 lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
134 uint16_t region_id)
135 {
136 MAILBOX_t *mb;
137 void *ctx;
138
139 mb = &pmb->u.mb;
140 ctx = pmb->context2;
141
142 /* Setup to dump VPD region */
143 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
144 mb->mbxCommand = MBX_DUMP_MEMORY;
145 mb->un.varDmp.cv = 1;
146 mb->un.varDmp.type = DMP_NV_PARAMS;
147 mb->un.varDmp.entry_index = offset;
148 mb->un.varDmp.region_id = region_id;
149 mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
150 mb->un.varDmp.co = 0;
151 mb->un.varDmp.resp_offset = 0;
152 pmb->context2 = ctx;
153 mb->mbxOwner = OWN_HOST;
154 return;
155 }
156
157 /**
158 * lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params
159 * @phba: pointer to lpfc hba data structure.
160 * @pmb: pointer to the driver internal queue element for mailbox command.
161 *
162 * This function create a dump memory mailbox command to dump wake up
163 * parameters.
164 */
165 void
lpfc_dump_wakeup_param(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)166 lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
167 {
168 MAILBOX_t *mb;
169 void *ctx;
170
171 mb = &pmb->u.mb;
172 /* Save context so that we can restore after memset */
173 ctx = pmb->context2;
174
175 /* Setup to dump VPD region */
176 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
177 mb->mbxCommand = MBX_DUMP_MEMORY;
178 mb->mbxOwner = OWN_HOST;
179 mb->un.varDmp.cv = 1;
180 mb->un.varDmp.type = DMP_NV_PARAMS;
181 mb->un.varDmp.entry_index = 0;
182 mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
183 mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
184 mb->un.varDmp.co = 0;
185 mb->un.varDmp.resp_offset = 0;
186 pmb->context2 = ctx;
187 return;
188 }
189
190 /**
191 * lpfc_read_nv - Prepare a mailbox command for reading HBA's NVRAM param
192 * @phba: pointer to lpfc hba data structure.
193 * @pmb: pointer to the driver internal queue element for mailbox command.
194 *
195 * The read NVRAM mailbox command returns the HBA's non-volatile parameters
196 * that are used as defaults when the Fibre Channel link is brought on-line.
197 *
198 * This routine prepares the mailbox command for reading information stored
199 * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
200 **/
201 void
lpfc_read_nv(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)202 lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
203 {
204 MAILBOX_t *mb;
205
206 mb = &pmb->u.mb;
207 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
208 mb->mbxCommand = MBX_READ_NV;
209 mb->mbxOwner = OWN_HOST;
210 return;
211 }
212
213 /**
214 * lpfc_config_async - Prepare a mailbox command for enabling HBA async event
215 * @phba: pointer to lpfc hba data structure.
216 * @pmb: pointer to the driver internal queue element for mailbox command.
217 * @ring: ring number for the asynchronous event to be configured.
218 *
219 * The asynchronous event enable mailbox command is used to enable the
220 * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
221 * specifies the default ring to which events are posted.
222 *
223 * This routine prepares the mailbox command for enabling HBA asynchronous
224 * event support on a IOCB ring.
225 **/
226 void
lpfc_config_async(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb,uint32_t ring)227 lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
228 uint32_t ring)
229 {
230 MAILBOX_t *mb;
231
232 mb = &pmb->u.mb;
233 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
234 mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
235 mb->un.varCfgAsyncEvent.ring = ring;
236 mb->mbxOwner = OWN_HOST;
237 return;
238 }
239
240 /**
241 * lpfc_heart_beat - Prepare a mailbox command for heart beat
242 * @phba: pointer to lpfc hba data structure.
243 * @pmb: pointer to the driver internal queue element for mailbox command.
244 *
245 * The heart beat mailbox command is used to detect an unresponsive HBA, which
246 * is defined as any device where no error attention is sent and both mailbox
247 * and rings are not processed.
248 *
249 * This routine prepares the mailbox command for issuing a heart beat in the
250 * form of mailbox command to the HBA. The timely completion of the heart
251 * beat mailbox command indicates the health of the HBA.
252 **/
253 void
lpfc_heart_beat(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)254 lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
255 {
256 MAILBOX_t *mb;
257
258 mb = &pmb->u.mb;
259 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
260 mb->mbxCommand = MBX_HEARTBEAT;
261 mb->mbxOwner = OWN_HOST;
262 return;
263 }
264
265 /**
266 * lpfc_read_topology - Prepare a mailbox command for reading HBA topology
267 * @phba: pointer to lpfc hba data structure.
268 * @pmb: pointer to the driver internal queue element for mailbox command.
269 * @mp: DMA buffer memory for reading the link attention information into.
270 *
271 * The read topology mailbox command is issued to read the link topology
272 * information indicated by the HBA port when the Link Event bit of the Host
273 * Attention (HSTATT) register is set to 1 (For SLI-3) or when an FC Link
274 * Attention ACQE is received from the port (For SLI-4). A Link Event
275 * Attention occurs based on an exception detected at the Fibre Channel link
276 * interface.
277 *
278 * This routine prepares the mailbox command for reading HBA link topology
279 * information. A DMA memory has been set aside and address passed to the
280 * HBA through @mp for the HBA to DMA link attention information into the
281 * memory as part of the execution of the mailbox command.
282 *
283 * Return codes
284 * 0 - Success (currently always return 0)
285 **/
286 int
lpfc_read_topology(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb,struct lpfc_dmabuf * mp)287 lpfc_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
288 struct lpfc_dmabuf *mp)
289 {
290 MAILBOX_t *mb;
291 struct lpfc_sli *psli;
292
293 psli = &phba->sli;
294 mb = &pmb->u.mb;
295 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
296
297 INIT_LIST_HEAD(&mp->list);
298 mb->mbxCommand = MBX_READ_TOPOLOGY;
299 mb->un.varReadTop.lilpBde64.tus.f.bdeSize = LPFC_ALPA_MAP_SIZE;
300 mb->un.varReadTop.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
301 mb->un.varReadTop.lilpBde64.addrLow = putPaddrLow(mp->phys);
302
303 /* Save address for later completion and set the owner to host so that
304 * the FW knows this mailbox is available for processing.
305 */
306 pmb->context1 = (uint8_t *)mp;
307 mb->mbxOwner = OWN_HOST;
308 return (0);
309 }
310
311 /**
312 * lpfc_clear_la - Prepare a mailbox command for clearing HBA link attention
313 * @phba: pointer to lpfc hba data structure.
314 * @pmb: pointer to the driver internal queue element for mailbox command.
315 *
316 * The clear link attention mailbox command is issued to clear the link event
317 * attention condition indicated by the Link Event bit of the Host Attention
318 * (HSTATT) register. The link event attention condition is cleared only if
319 * the event tag specified matches that of the current link event counter.
320 * The current event tag is read using the read link attention event mailbox
321 * command.
322 *
323 * This routine prepares the mailbox command for clearing HBA link attention
324 * information.
325 **/
326 void
lpfc_clear_la(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)327 lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
328 {
329 MAILBOX_t *mb;
330
331 mb = &pmb->u.mb;
332 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
333
334 mb->un.varClearLA.eventTag = phba->fc_eventTag;
335 mb->mbxCommand = MBX_CLEAR_LA;
336 mb->mbxOwner = OWN_HOST;
337 return;
338 }
339
340 /**
341 * lpfc_config_link - Prepare a mailbox command for configuring link on a HBA
342 * @phba: pointer to lpfc hba data structure.
343 * @pmb: pointer to the driver internal queue element for mailbox command.
344 *
345 * The configure link mailbox command is used before the initialize link
346 * mailbox command to override default value and to configure link-oriented
347 * parameters such as DID address and various timers. Typically, this
348 * command would be used after an F_Port login to set the returned DID address
349 * and the fabric timeout values. This command is not valid before a configure
350 * port command has configured the HBA port.
351 *
352 * This routine prepares the mailbox command for configuring link on a HBA.
353 **/
354 void
lpfc_config_link(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)355 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
356 {
357 struct lpfc_vport *vport = phba->pport;
358 MAILBOX_t *mb = &pmb->u.mb;
359 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
360
361 /* NEW_FEATURE
362 * SLI-2, Coalescing Response Feature.
363 */
364 if (phba->cfg_cr_delay) {
365 mb->un.varCfgLnk.cr = 1;
366 mb->un.varCfgLnk.ci = 1;
367 mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
368 mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
369 }
370
371 mb->un.varCfgLnk.myId = vport->fc_myDID;
372 mb->un.varCfgLnk.edtov = phba->fc_edtov;
373 mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
374 mb->un.varCfgLnk.ratov = phba->fc_ratov;
375 mb->un.varCfgLnk.rttov = phba->fc_rttov;
376 mb->un.varCfgLnk.altov = phba->fc_altov;
377 mb->un.varCfgLnk.crtov = phba->fc_crtov;
378 mb->un.varCfgLnk.citov = phba->fc_citov;
379
380 if (phba->cfg_ack0)
381 mb->un.varCfgLnk.ack0_enable = 1;
382
383 mb->mbxCommand = MBX_CONFIG_LINK;
384 mb->mbxOwner = OWN_HOST;
385 return;
386 }
387
388 /**
389 * lpfc_config_msi - Prepare a mailbox command for configuring msi-x
390 * @phba: pointer to lpfc hba data structure.
391 * @pmb: pointer to the driver internal queue element for mailbox command.
392 *
393 * The configure MSI-X mailbox command is used to configure the HBA's SLI-3
394 * MSI-X multi-message interrupt vector association to interrupt attention
395 * conditions.
396 *
397 * Return codes
398 * 0 - Success
399 * -EINVAL - Failure
400 **/
401 int
lpfc_config_msi(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)402 lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
403 {
404 MAILBOX_t *mb = &pmb->u.mb;
405 uint32_t attentionConditions[2];
406
407 /* Sanity check */
408 if (phba->cfg_use_msi != 2) {
409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
410 "0475 Not configured for supporting MSI-X "
411 "cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
412 return -EINVAL;
413 }
414
415 if (phba->sli_rev < 3) {
416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
417 "0476 HBA not supporting SLI-3 or later "
418 "SLI Revision: 0x%x\n", phba->sli_rev);
419 return -EINVAL;
420 }
421
422 /* Clear mailbox command fields */
423 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
424
425 /*
426 * SLI-3, Message Signaled Interrupt Fearure.
427 */
428
429 /* Multi-message attention configuration */
430 attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
431 HA_LATT | HA_MBATT);
432 attentionConditions[1] = 0;
433
434 mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
435 mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
436
437 /*
438 * Set up message number to HA bit association
439 */
440 #ifdef __BIG_ENDIAN_BITFIELD
441 /* RA0 (FCP Ring) */
442 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
443 /* RA1 (Other Protocol Extra Ring) */
444 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
445 #else /* __LITTLE_ENDIAN_BITFIELD */
446 /* RA0 (FCP Ring) */
447 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
448 /* RA1 (Other Protocol Extra Ring) */
449 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
450 #endif
451 /* Multi-message interrupt autoclear configuration*/
452 mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
453 mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
454
455 /* For now, HBA autoclear does not work reliably, disable it */
456 mb->un.varCfgMSI.autoClearHA[0] = 0;
457 mb->un.varCfgMSI.autoClearHA[1] = 0;
458
459 /* Set command and owner bit */
460 mb->mbxCommand = MBX_CONFIG_MSI;
461 mb->mbxOwner = OWN_HOST;
462
463 return 0;
464 }
465
466 /**
467 * lpfc_init_link - Prepare a mailbox command for initialize link on a HBA
468 * @phba: pointer to lpfc hba data structure.
469 * @pmb: pointer to the driver internal queue element for mailbox command.
470 * @topology: the link topology for the link to be initialized to.
471 * @linkspeed: the link speed for the link to be initialized to.
472 *
473 * The initialize link mailbox command is used to initialize the Fibre
474 * Channel link. This command must follow a configure port command that
475 * establishes the mode of operation.
476 *
477 * This routine prepares the mailbox command for initializing link on a HBA
478 * with the specified link topology and speed.
479 **/
480 void
lpfc_init_link(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb,uint32_t topology,uint32_t linkspeed)481 lpfc_init_link(struct lpfc_hba * phba,
482 LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
483 {
484 lpfc_vpd_t *vpd;
485 struct lpfc_sli *psli;
486 MAILBOX_t *mb;
487
488 mb = &pmb->u.mb;
489 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
490
491 psli = &phba->sli;
492 switch (topology) {
493 case FLAGS_TOPOLOGY_MODE_LOOP_PT:
494 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
495 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
496 break;
497 case FLAGS_TOPOLOGY_MODE_PT_PT:
498 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
499 break;
500 case FLAGS_TOPOLOGY_MODE_LOOP:
501 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
502 break;
503 case FLAGS_TOPOLOGY_MODE_PT_LOOP:
504 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
505 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
506 break;
507 case FLAGS_LOCAL_LB:
508 mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
509 break;
510 }
511
512 /* Enable asynchronous ABTS responses from firmware */
513 mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
514
515 /* NEW_FEATURE
516 * Setting up the link speed
517 */
518 vpd = &phba->vpd;
519 if (vpd->rev.feaLevelHigh >= 0x02){
520 switch(linkspeed){
521 case LPFC_USER_LINK_SPEED_1G:
522 mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
523 mb->un.varInitLnk.link_speed = LINK_SPEED_1G;
524 break;
525 case LPFC_USER_LINK_SPEED_2G:
526 mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
527 mb->un.varInitLnk.link_speed = LINK_SPEED_2G;
528 break;
529 case LPFC_USER_LINK_SPEED_4G:
530 mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
531 mb->un.varInitLnk.link_speed = LINK_SPEED_4G;
532 break;
533 case LPFC_USER_LINK_SPEED_8G:
534 mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
535 mb->un.varInitLnk.link_speed = LINK_SPEED_8G;
536 break;
537 case LPFC_USER_LINK_SPEED_10G:
538 mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
539 mb->un.varInitLnk.link_speed = LINK_SPEED_10G;
540 break;
541 case LPFC_USER_LINK_SPEED_16G:
542 mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
543 mb->un.varInitLnk.link_speed = LINK_SPEED_16G;
544 break;
545 case LPFC_USER_LINK_SPEED_AUTO:
546 default:
547 mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
548 break;
549 }
550
551 }
552 else
553 mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
554
555 mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
556 mb->mbxOwner = OWN_HOST;
557 mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
558 return;
559 }
560
561 /**
562 * lpfc_read_sparam - Prepare a mailbox command for reading HBA parameters
563 * @phba: pointer to lpfc hba data structure.
564 * @pmb: pointer to the driver internal queue element for mailbox command.
565 * @vpi: virtual N_Port identifier.
566 *
567 * The read service parameter mailbox command is used to read the HBA port
568 * service parameters. The service parameters are read into the buffer
569 * specified directly by a BDE in the mailbox command. These service
570 * parameters may then be used to build the payload of an N_Port/F_POrt
571 * login request and reply (LOGI/ACC).
572 *
573 * This routine prepares the mailbox command for reading HBA port service
574 * parameters. The DMA memory is allocated in this function and the addresses
575 * are populated into the mailbox command for the HBA to DMA the service
576 * parameters into.
577 *
578 * Return codes
579 * 0 - Success
580 * 1 - DMA memory allocation failed
581 **/
582 int
lpfc_read_sparam(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb,int vpi)583 lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
584 {
585 struct lpfc_dmabuf *mp;
586 MAILBOX_t *mb;
587 struct lpfc_sli *psli;
588
589 psli = &phba->sli;
590 mb = &pmb->u.mb;
591 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
592
593 mb->mbxOwner = OWN_HOST;
594
595 /* Get a buffer to hold the HBAs Service Parameters */
596
597 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
598 if (mp)
599 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
600 if (!mp || !mp->virt) {
601 kfree(mp);
602 mb->mbxCommand = MBX_READ_SPARM64;
603 /* READ_SPARAM: no buffers */
604 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
605 "0301 READ_SPARAM: no buffers\n");
606 return (1);
607 }
608 INIT_LIST_HEAD(&mp->list);
609 mb->mbxCommand = MBX_READ_SPARM64;
610 mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
611 mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
612 mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
613 if (phba->sli_rev >= LPFC_SLI_REV3)
614 mb->un.varRdSparm.vpi = phba->vpi_ids[vpi];
615
616 /* save address for completion */
617 pmb->context1 = mp;
618
619 return (0);
620 }
621
622 /**
623 * lpfc_unreg_did - Prepare a mailbox command for unregistering DID
624 * @phba: pointer to lpfc hba data structure.
625 * @vpi: virtual N_Port identifier.
626 * @did: remote port identifier.
627 * @pmb: pointer to the driver internal queue element for mailbox command.
628 *
629 * The unregister DID mailbox command is used to unregister an N_Port/F_Port
630 * login for an unknown RPI by specifying the DID of a remote port. This
631 * command frees an RPI context in the HBA port. This has the effect of
632 * performing an implicit N_Port/F_Port logout.
633 *
634 * This routine prepares the mailbox command for unregistering a remote
635 * N_Port/F_Port (DID) login.
636 **/
637 void
lpfc_unreg_did(struct lpfc_hba * phba,uint16_t vpi,uint32_t did,LPFC_MBOXQ_t * pmb)638 lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
639 LPFC_MBOXQ_t * pmb)
640 {
641 MAILBOX_t *mb;
642
643 mb = &pmb->u.mb;
644 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
645
646 mb->un.varUnregDID.did = did;
647 mb->un.varUnregDID.vpi = vpi;
648 if ((vpi != 0xffff) &&
649 (phba->sli_rev == LPFC_SLI_REV4))
650 mb->un.varUnregDID.vpi = phba->vpi_ids[vpi];
651
652 mb->mbxCommand = MBX_UNREG_D_ID;
653 mb->mbxOwner = OWN_HOST;
654 return;
655 }
656
657 /**
658 * lpfc_read_config - Prepare a mailbox command for reading HBA configuration
659 * @phba: pointer to lpfc hba data structure.
660 * @pmb: pointer to the driver internal queue element for mailbox command.
661 *
662 * The read configuration mailbox command is used to read the HBA port
663 * configuration parameters. This mailbox command provides a method for
664 * seeing any parameters that may have changed via various configuration
665 * mailbox commands.
666 *
667 * This routine prepares the mailbox command for reading out HBA configuration
668 * parameters.
669 **/
670 void
lpfc_read_config(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)671 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
672 {
673 MAILBOX_t *mb;
674
675 mb = &pmb->u.mb;
676 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
677
678 mb->mbxCommand = MBX_READ_CONFIG;
679 mb->mbxOwner = OWN_HOST;
680 return;
681 }
682
683 /**
684 * lpfc_read_lnk_stat - Prepare a mailbox command for reading HBA link stats
685 * @phba: pointer to lpfc hba data structure.
686 * @pmb: pointer to the driver internal queue element for mailbox command.
687 *
688 * The read link status mailbox command is used to read the link status from
689 * the HBA. Link status includes all link-related error counters. These
690 * counters are maintained by the HBA and originated in the link hardware
691 * unit. Note that all of these counters wrap.
692 *
693 * This routine prepares the mailbox command for reading out HBA link status.
694 **/
695 void
lpfc_read_lnk_stat(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)696 lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
697 {
698 MAILBOX_t *mb;
699
700 mb = &pmb->u.mb;
701 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
702
703 mb->mbxCommand = MBX_READ_LNK_STAT;
704 mb->mbxOwner = OWN_HOST;
705 return;
706 }
707
708 /**
709 * lpfc_reg_rpi - Prepare a mailbox command for registering remote login
710 * @phba: pointer to lpfc hba data structure.
711 * @vpi: virtual N_Port identifier.
712 * @did: remote port identifier.
713 * @param: pointer to memory holding the server parameters.
714 * @pmb: pointer to the driver internal queue element for mailbox command.
715 * @rpi: the rpi to use in the registration (usually only used for SLI4.
716 *
717 * The registration login mailbox command is used to register an N_Port or
718 * F_Port login. This registration allows the HBA to cache the remote N_Port
719 * service parameters internally and thereby make the appropriate FC-2
720 * decisions. The remote port service parameters are handed off by the driver
721 * to the HBA using a descriptor entry that directly identifies a buffer in
722 * host memory. In exchange, the HBA returns an RPI identifier.
723 *
724 * This routine prepares the mailbox command for registering remote port login.
725 * The function allocates DMA buffer for passing the service parameters to the
726 * HBA with the mailbox command.
727 *
728 * Return codes
729 * 0 - Success
730 * 1 - DMA memory allocation failed
731 **/
732 int
lpfc_reg_rpi(struct lpfc_hba * phba,uint16_t vpi,uint32_t did,uint8_t * param,LPFC_MBOXQ_t * pmb,uint16_t rpi)733 lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
734 uint8_t *param, LPFC_MBOXQ_t *pmb, uint16_t rpi)
735 {
736 MAILBOX_t *mb = &pmb->u.mb;
737 uint8_t *sparam;
738 struct lpfc_dmabuf *mp;
739
740 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
741
742 mb->un.varRegLogin.rpi = 0;
743 if (phba->sli_rev == LPFC_SLI_REV4)
744 mb->un.varRegLogin.rpi = phba->sli4_hba.rpi_ids[rpi];
745 if (phba->sli_rev >= LPFC_SLI_REV3)
746 mb->un.varRegLogin.vpi = phba->vpi_ids[vpi];
747 mb->un.varRegLogin.did = did;
748 mb->mbxOwner = OWN_HOST;
749 /* Get a buffer to hold NPorts Service Parameters */
750 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
751 if (mp)
752 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
753 if (!mp || !mp->virt) {
754 kfree(mp);
755 mb->mbxCommand = MBX_REG_LOGIN64;
756 /* REG_LOGIN: no buffers */
757 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
758 "0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
759 "rpi x%x\n", vpi, did, rpi);
760 return 1;
761 }
762 INIT_LIST_HEAD(&mp->list);
763 sparam = mp->virt;
764
765 /* Copy param's into a new buffer */
766 memcpy(sparam, param, sizeof (struct serv_parm));
767
768 /* save address for completion */
769 pmb->context1 = (uint8_t *) mp;
770
771 mb->mbxCommand = MBX_REG_LOGIN64;
772 mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
773 mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
774 mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
775
776 return 0;
777 }
778
779 /**
780 * lpfc_unreg_login - Prepare a mailbox command for unregistering remote login
781 * @phba: pointer to lpfc hba data structure.
782 * @vpi: virtual N_Port identifier.
783 * @rpi: remote port identifier
784 * @pmb: pointer to the driver internal queue element for mailbox command.
785 *
786 * The unregistration login mailbox command is used to unregister an N_Port
787 * or F_Port login. This command frees an RPI context in the HBA. It has the
788 * effect of performing an implicit N_Port/F_Port logout.
789 *
790 * This routine prepares the mailbox command for unregistering remote port
791 * login.
792 *
793 * For SLI4 ports, the rpi passed to this function must be the physical
794 * rpi value, not the logical index.
795 **/
796 void
lpfc_unreg_login(struct lpfc_hba * phba,uint16_t vpi,uint32_t rpi,LPFC_MBOXQ_t * pmb)797 lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
798 LPFC_MBOXQ_t * pmb)
799 {
800 MAILBOX_t *mb;
801
802 mb = &pmb->u.mb;
803 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
804
805 mb->un.varUnregLogin.rpi = rpi;
806 mb->un.varUnregLogin.rsvd1 = 0;
807 if (phba->sli_rev >= LPFC_SLI_REV3)
808 mb->un.varUnregLogin.vpi = phba->vpi_ids[vpi];
809
810 mb->mbxCommand = MBX_UNREG_LOGIN;
811 mb->mbxOwner = OWN_HOST;
812
813 return;
814 }
815
816 /**
817 * lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA.
818 * @vport: pointer to a vport object.
819 *
820 * This routine sends mailbox command to unregister all active RPIs for
821 * a vport.
822 **/
823 void
lpfc_sli4_unreg_all_rpis(struct lpfc_vport * vport)824 lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
825 {
826 struct lpfc_hba *phba = vport->phba;
827 LPFC_MBOXQ_t *mbox;
828 int rc;
829
830 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
831 if (mbox) {
832 /*
833 * For SLI4 functions, the rpi field is overloaded for
834 * the vport context unreg all. This routine passes
835 * 0 for the rpi field in lpfc_unreg_login for compatibility
836 * with SLI3 and then overrides the rpi field with the
837 * expected value for SLI4.
838 */
839 lpfc_unreg_login(phba, vport->vpi, phba->vpi_ids[vport->vpi],
840 mbox);
841 mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000;
842 mbox->vport = vport;
843 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
844 mbox->context1 = NULL;
845 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
846 if (rc == MBX_NOT_FINISHED)
847 mempool_free(mbox, phba->mbox_mem_pool);
848 }
849 }
850
851 /**
852 * lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier
853 * @phba: pointer to lpfc hba data structure.
854 * @vpi: virtual N_Port identifier.
855 * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port).
856 * @pmb: pointer to the driver internal queue element for mailbox command.
857 *
858 * The registration vport identifier mailbox command is used to activate a
859 * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
860 * N_Port_ID against the information in the selected virtual N_Port context
861 * block and marks it active to allow normal processing of IOCB commands and
862 * received unsolicited exchanges.
863 *
864 * This routine prepares the mailbox command for registering a virtual N_Port.
865 **/
866 void
lpfc_reg_vpi(struct lpfc_vport * vport,LPFC_MBOXQ_t * pmb)867 lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
868 {
869 MAILBOX_t *mb = &pmb->u.mb;
870 struct lpfc_hba *phba = vport->phba;
871
872 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
873 /*
874 * Set the re-reg VPI bit for f/w to update the MAC address.
875 */
876 if ((phba->sli_rev == LPFC_SLI_REV4) &&
877 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI))
878 mb->un.varRegVpi.upd = 1;
879
880 mb->un.varRegVpi.vpi = phba->vpi_ids[vport->vpi];
881 mb->un.varRegVpi.sid = vport->fc_myDID;
882 if (phba->sli_rev == LPFC_SLI_REV4)
883 mb->un.varRegVpi.vfi = phba->sli4_hba.vfi_ids[vport->vfi];
884 else
885 mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
886 memcpy(mb->un.varRegVpi.wwn, &vport->fc_portname,
887 sizeof(struct lpfc_name));
888 mb->un.varRegVpi.wwn[0] = cpu_to_le32(mb->un.varRegVpi.wwn[0]);
889 mb->un.varRegVpi.wwn[1] = cpu_to_le32(mb->un.varRegVpi.wwn[1]);
890
891 mb->mbxCommand = MBX_REG_VPI;
892 mb->mbxOwner = OWN_HOST;
893 return;
894
895 }
896
897 /**
898 * lpfc_unreg_vpi - Prepare a mailbox command for unregistering vport id
899 * @phba: pointer to lpfc hba data structure.
900 * @vpi: virtual N_Port identifier.
901 * @pmb: pointer to the driver internal queue element for mailbox command.
902 *
903 * The unregistration vport identifier mailbox command is used to inactivate
904 * a virtual N_Port. The driver must have logged out and unregistered all
905 * remote N_Ports to abort any activity on the virtual N_Port. The HBA will
906 * unregisters any default RPIs associated with the specified vpi, aborting
907 * any active exchanges. The HBA will post the mailbox response after making
908 * the virtual N_Port inactive.
909 *
910 * This routine prepares the mailbox command for unregistering a virtual
911 * N_Port.
912 **/
913 void
lpfc_unreg_vpi(struct lpfc_hba * phba,uint16_t vpi,LPFC_MBOXQ_t * pmb)914 lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
915 {
916 MAILBOX_t *mb = &pmb->u.mb;
917 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
918
919 if (phba->sli_rev == LPFC_SLI_REV3)
920 mb->un.varUnregVpi.vpi = phba->vpi_ids[vpi];
921 else if (phba->sli_rev >= LPFC_SLI_REV4)
922 mb->un.varUnregVpi.sli4_vpi = phba->vpi_ids[vpi];
923
924 mb->mbxCommand = MBX_UNREG_VPI;
925 mb->mbxOwner = OWN_HOST;
926 return;
927
928 }
929
930 /**
931 * lpfc_config_pcb_setup - Set up IOCB rings in the Port Control Block (PCB)
932 * @phba: pointer to lpfc hba data structure.
933 *
934 * This routine sets up and initializes the IOCB rings in the Port Control
935 * Block (PCB).
936 **/
937 static void
lpfc_config_pcb_setup(struct lpfc_hba * phba)938 lpfc_config_pcb_setup(struct lpfc_hba * phba)
939 {
940 struct lpfc_sli *psli = &phba->sli;
941 struct lpfc_sli_ring *pring;
942 PCB_t *pcbp = phba->pcb;
943 dma_addr_t pdma_addr;
944 uint32_t offset;
945 uint32_t iocbCnt = 0;
946 int i;
947
948 pcbp->maxRing = (psli->num_rings - 1);
949
950 for (i = 0; i < psli->num_rings; i++) {
951 pring = &psli->ring[i];
952
953 pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE:
954 SLI2_IOCB_CMD_SIZE;
955 pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE:
956 SLI2_IOCB_RSP_SIZE;
957 /* A ring MUST have both cmd and rsp entries defined to be
958 valid */
959 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
960 pcbp->rdsc[i].cmdEntries = 0;
961 pcbp->rdsc[i].rspEntries = 0;
962 pcbp->rdsc[i].cmdAddrHigh = 0;
963 pcbp->rdsc[i].rspAddrHigh = 0;
964 pcbp->rdsc[i].cmdAddrLow = 0;
965 pcbp->rdsc[i].rspAddrLow = 0;
966 pring->cmdringaddr = NULL;
967 pring->rspringaddr = NULL;
968 continue;
969 }
970 /* Command ring setup for ring */
971 pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
972 pcbp->rdsc[i].cmdEntries = pring->numCiocb;
973
974 offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
975 (uint8_t *) phba->slim2p.virt;
976 pdma_addr = phba->slim2p.phys + offset;
977 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
978 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
979 iocbCnt += pring->numCiocb;
980
981 /* Response ring setup for ring */
982 pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt];
983
984 pcbp->rdsc[i].rspEntries = pring->numRiocb;
985 offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
986 (uint8_t *)phba->slim2p.virt;
987 pdma_addr = phba->slim2p.phys + offset;
988 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
989 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
990 iocbCnt += pring->numRiocb;
991 }
992 }
993
994 /**
995 * lpfc_read_rev - Prepare a mailbox command for reading HBA revision
996 * @phba: pointer to lpfc hba data structure.
997 * @pmb: pointer to the driver internal queue element for mailbox command.
998 *
999 * The read revision mailbox command is used to read the revision levels of
1000 * the HBA components. These components include hardware units, resident
1001 * firmware, and available firmware. HBAs that supports SLI-3 mode of
1002 * operation provide different response information depending on the version
1003 * requested by the driver.
1004 *
1005 * This routine prepares the mailbox command for reading HBA revision
1006 * information.
1007 **/
1008 void
lpfc_read_rev(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)1009 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1010 {
1011 MAILBOX_t *mb = &pmb->u.mb;
1012 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1013 mb->un.varRdRev.cv = 1;
1014 mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
1015 mb->mbxCommand = MBX_READ_REV;
1016 mb->mbxOwner = OWN_HOST;
1017 return;
1018 }
1019
1020 void
lpfc_sli4_swap_str(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)1021 lpfc_sli4_swap_str(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1022 {
1023 MAILBOX_t *mb = &pmb->u.mb;
1024 struct lpfc_mqe *mqe;
1025
1026 switch (mb->mbxCommand) {
1027 case MBX_READ_REV:
1028 mqe = &pmb->u.mqe;
1029 lpfc_sli_pcimem_bcopy(mqe->un.read_rev.fw_name,
1030 mqe->un.read_rev.fw_name, 16);
1031 lpfc_sli_pcimem_bcopy(mqe->un.read_rev.ulp_fw_name,
1032 mqe->un.read_rev.ulp_fw_name, 16);
1033 break;
1034 default:
1035 break;
1036 }
1037 return;
1038 }
1039
1040 /**
1041 * lpfc_build_hbq_profile2 - Set up the HBQ Selection Profile 2
1042 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1043 * @hbq_desc: pointer to the HBQ selection profile descriptor.
1044 *
1045 * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
1046 * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
1047 * the Sequence Length Test using the fields in the Selection Profile 2
1048 * extension in words 20:31.
1049 **/
1050 static void
lpfc_build_hbq_profile2(struct config_hbq_var * hbqmb,struct lpfc_hbq_init * hbq_desc)1051 lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
1052 struct lpfc_hbq_init *hbq_desc)
1053 {
1054 hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
1055 hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen;
1056 hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff;
1057 }
1058
1059 /**
1060 * lpfc_build_hbq_profile3 - Set up the HBQ Selection Profile 3
1061 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1062 * @hbq_desc: pointer to the HBQ selection profile descriptor.
1063 *
1064 * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
1065 * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
1066 * the Sequence Length Test and Byte Field Test using the fields in the
1067 * Selection Profile 3 extension in words 20:31.
1068 **/
1069 static void
lpfc_build_hbq_profile3(struct config_hbq_var * hbqmb,struct lpfc_hbq_init * hbq_desc)1070 lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
1071 struct lpfc_hbq_init *hbq_desc)
1072 {
1073 hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
1074 hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen;
1075 hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
1076 hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff;
1077 memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
1078 sizeof(hbqmb->profiles.profile3.cmdmatch));
1079 }
1080
1081 /**
1082 * lpfc_build_hbq_profile5 - Set up the HBQ Selection Profile 5
1083 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1084 * @hbq_desc: pointer to the HBQ selection profile descriptor.
1085 *
1086 * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
1087 * HBA tests the initial frame of an incoming sequence using the frame's
1088 * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
1089 * and Byte Field Test using the fields in the Selection Profile 5 extension
1090 * words 20:31.
1091 **/
1092 static void
lpfc_build_hbq_profile5(struct config_hbq_var * hbqmb,struct lpfc_hbq_init * hbq_desc)1093 lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
1094 struct lpfc_hbq_init *hbq_desc)
1095 {
1096 hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
1097 hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen;
1098 hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
1099 hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff;
1100 memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
1101 sizeof(hbqmb->profiles.profile5.cmdmatch));
1102 }
1103
1104 /**
1105 * lpfc_config_hbq - Prepare a mailbox command for configuring an HBQ
1106 * @phba: pointer to lpfc hba data structure.
1107 * @id: HBQ identifier.
1108 * @hbq_desc: pointer to the HBA descriptor data structure.
1109 * @hbq_entry_index: index of the HBQ entry data structures.
1110 * @pmb: pointer to the driver internal queue element for mailbox command.
1111 *
1112 * The configure HBQ (Host Buffer Queue) mailbox command is used to configure
1113 * an HBQ. The configuration binds events that require buffers to a particular
1114 * ring and HBQ based on a selection profile.
1115 *
1116 * This routine prepares the mailbox command for configuring an HBQ.
1117 **/
1118 void
lpfc_config_hbq(struct lpfc_hba * phba,uint32_t id,struct lpfc_hbq_init * hbq_desc,uint32_t hbq_entry_index,LPFC_MBOXQ_t * pmb)1119 lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
1120 struct lpfc_hbq_init *hbq_desc,
1121 uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
1122 {
1123 int i;
1124 MAILBOX_t *mb = &pmb->u.mb;
1125 struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
1126
1127 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1128 hbqmb->hbqId = id;
1129 hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */
1130 hbqmb->recvNotify = hbq_desc->rn; /* Receive
1131 * Notification */
1132 hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks
1133 * # in words 0-19 */
1134 hbqmb->profile = hbq_desc->profile; /* Selection profile:
1135 * 0 = all,
1136 * 7 = logentry */
1137 hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring
1138 * e.g. Ring0=b0001,
1139 * ring2=b0100 */
1140 hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4
1141 * or 5 */
1142 hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this
1143 * HBQ will be used
1144 * for LogEntry
1145 * buffers */
1146 hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
1147 hbq_entry_index * sizeof(struct lpfc_hbq_entry);
1148 hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
1149
1150 mb->mbxCommand = MBX_CONFIG_HBQ;
1151 mb->mbxOwner = OWN_HOST;
1152
1153 /* Copy info for profiles 2,3,5. Other
1154 * profiles this area is reserved
1155 */
1156 if (hbq_desc->profile == 2)
1157 lpfc_build_hbq_profile2(hbqmb, hbq_desc);
1158 else if (hbq_desc->profile == 3)
1159 lpfc_build_hbq_profile3(hbqmb, hbq_desc);
1160 else if (hbq_desc->profile == 5)
1161 lpfc_build_hbq_profile5(hbqmb, hbq_desc);
1162
1163 /* Return if no rctl / type masks for this HBQ */
1164 if (!hbq_desc->mask_count)
1165 return;
1166
1167 /* Otherwise we setup specific rctl / type masks for this HBQ */
1168 for (i = 0; i < hbq_desc->mask_count; i++) {
1169 hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
1170 hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask;
1171 hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
1172 hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask;
1173 }
1174
1175 return;
1176 }
1177
1178 /**
1179 * lpfc_config_ring - Prepare a mailbox command for configuring an IOCB ring
1180 * @phba: pointer to lpfc hba data structure.
1181 * @ring:
1182 * @pmb: pointer to the driver internal queue element for mailbox command.
1183 *
1184 * The configure ring mailbox command is used to configure an IOCB ring. This
1185 * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
1186 * ring. This is used to map incoming sequences to a particular ring whose
1187 * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
1188 * attempt to configure a ring whose number is greater than the number
1189 * specified in the Port Control Block (PCB). It is an error to issue the
1190 * configure ring command more than once with the same ring number. The HBA
1191 * returns an error if the driver attempts this.
1192 *
1193 * This routine prepares the mailbox command for configuring IOCB ring.
1194 **/
1195 void
lpfc_config_ring(struct lpfc_hba * phba,int ring,LPFC_MBOXQ_t * pmb)1196 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
1197 {
1198 int i;
1199 MAILBOX_t *mb = &pmb->u.mb;
1200 struct lpfc_sli *psli;
1201 struct lpfc_sli_ring *pring;
1202
1203 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1204
1205 mb->un.varCfgRing.ring = ring;
1206 mb->un.varCfgRing.maxOrigXchg = 0;
1207 mb->un.varCfgRing.maxRespXchg = 0;
1208 mb->un.varCfgRing.recvNotify = 1;
1209
1210 psli = &phba->sli;
1211 pring = &psli->ring[ring];
1212 mb->un.varCfgRing.numMask = pring->num_mask;
1213 mb->mbxCommand = MBX_CONFIG_RING;
1214 mb->mbxOwner = OWN_HOST;
1215
1216 /* Is this ring configured for a specific profile */
1217 if (pring->prt[0].profile) {
1218 mb->un.varCfgRing.profile = pring->prt[0].profile;
1219 return;
1220 }
1221
1222 /* Otherwise we setup specific rctl / type masks for this ring */
1223 for (i = 0; i < pring->num_mask; i++) {
1224 mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
1225 if (mb->un.varCfgRing.rrRegs[i].rval != FC_RCTL_ELS_REQ)
1226 mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
1227 else
1228 mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
1229 mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
1230 mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
1231 }
1232
1233 return;
1234 }
1235
1236 /**
1237 * lpfc_config_port - Prepare a mailbox command for configuring port
1238 * @phba: pointer to lpfc hba data structure.
1239 * @pmb: pointer to the driver internal queue element for mailbox command.
1240 *
1241 * The configure port mailbox command is used to identify the Port Control
1242 * Block (PCB) in the driver memory. After this command is issued, the
1243 * driver must not access the mailbox in the HBA without first resetting
1244 * the HBA. The HBA may copy the PCB information to internal storage for
1245 * subsequent use; the driver can not change the PCB information unless it
1246 * resets the HBA.
1247 *
1248 * This routine prepares the mailbox command for configuring port.
1249 **/
1250 void
lpfc_config_port(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)1251 lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1252 {
1253 MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
1254 MAILBOX_t *mb = &pmb->u.mb;
1255 dma_addr_t pdma_addr;
1256 uint32_t bar_low, bar_high;
1257 size_t offset;
1258 struct lpfc_hgp hgp;
1259 int i;
1260 uint32_t pgp_offset;
1261
1262 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1263 mb->mbxCommand = MBX_CONFIG_PORT;
1264 mb->mbxOwner = OWN_HOST;
1265
1266 mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
1267
1268 offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
1269 pdma_addr = phba->slim2p.phys + offset;
1270 mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
1271 mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
1272
1273 /* Always Host Group Pointer is in SLIM */
1274 mb->un.varCfgPort.hps = 1;
1275
1276 /* If HBA supports SLI=3 ask for it */
1277
1278 if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
1279 if (phba->cfg_enable_bg)
1280 mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
1281 if (phba->cfg_enable_dss)
1282 mb->un.varCfgPort.cdss = 1; /* Configure Security */
1283 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
1284 mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
1285 mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
1286 if (phba->max_vpi && phba->cfg_enable_npiv &&
1287 phba->vpd.sli3Feat.cmv) {
1288 mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
1289 mb->un.varCfgPort.cmv = 1;
1290 } else
1291 mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
1292 } else
1293 phba->sli_rev = LPFC_SLI_REV2;
1294 mb->un.varCfgPort.sli_mode = phba->sli_rev;
1295
1296 /* If this is an SLI3 port, configure async status notification. */
1297 if (phba->sli_rev == LPFC_SLI_REV3)
1298 mb->un.varCfgPort.casabt = 1;
1299
1300 /* Now setup pcb */
1301 phba->pcb->type = TYPE_NATIVE_SLI2;
1302 phba->pcb->feature = FEATURE_INITIAL_SLI2;
1303
1304 /* Setup Mailbox pointers */
1305 phba->pcb->mailBoxSize = sizeof(MAILBOX_t) + MAILBOX_EXT_SIZE;
1306 offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
1307 pdma_addr = phba->slim2p.phys + offset;
1308 phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
1309 phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);
1310
1311 /*
1312 * Setup Host Group ring pointer.
1313 *
1314 * For efficiency reasons, the ring get/put pointers can be
1315 * placed in adapter memory (SLIM) rather than in host memory.
1316 * This allows firmware to avoid PCI reads/writes when updating
1317 * and checking pointers.
1318 *
1319 * The firmware recognizes the use of SLIM memory by comparing
1320 * the address of the get/put pointers structure with that of
1321 * the SLIM BAR (BAR0).
1322 *
1323 * Caution: be sure to use the PCI config space value of BAR0/BAR1
1324 * (the hardware's view of the base address), not the OS's
1325 * value of pci_resource_start() as the OS value may be a cookie
1326 * for ioremap/iomap.
1327 */
1328
1329
1330 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
1331 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
1332
1333 /*
1334 * Set up HGP - Port Memory
1335 *
1336 * The port expects the host get/put pointers to reside in memory
1337 * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
1338 * area of SLIM. In SLI-2 mode, there's an additional 16 reserved
1339 * words (0x40 bytes). This area is not reserved if HBQs are
1340 * configured in SLI-3.
1341 *
1342 * CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
1343 * RR0Get 0xc4 0x84
1344 * CR1Put 0xc8 0x88
1345 * RR1Get 0xcc 0x8c
1346 * CR2Put 0xd0 0x90
1347 * RR2Get 0xd4 0x94
1348 * CR3Put 0xd8 0x98
1349 * RR3Get 0xdc 0x9c
1350 *
1351 * Reserved 0xa0-0xbf
1352 * If HBQs configured:
1353 * HBQ 0 Put ptr 0xc0
1354 * HBQ 1 Put ptr 0xc4
1355 * HBQ 2 Put ptr 0xc8
1356 * ......
1357 * HBQ(M-1)Put Pointer 0xc0+(M-1)*4
1358 *
1359 */
1360
1361 if (phba->cfg_hostmem_hgp && phba->sli_rev != 3) {
1362 phba->host_gp = &phba->mbox->us.s2.host[0];
1363 phba->hbq_put = NULL;
1364 offset = (uint8_t *)&phba->mbox->us.s2.host -
1365 (uint8_t *)phba->slim2p.virt;
1366 pdma_addr = phba->slim2p.phys + offset;
1367 phba->pcb->hgpAddrHigh = putPaddrHigh(pdma_addr);
1368 phba->pcb->hgpAddrLow = putPaddrLow(pdma_addr);
1369 } else {
1370 /* Always Host Group Pointer is in SLIM */
1371 mb->un.varCfgPort.hps = 1;
1372
1373 if (phba->sli_rev == 3) {
1374 phba->host_gp = &mb_slim->us.s3.host[0];
1375 phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
1376 } else {
1377 phba->host_gp = &mb_slim->us.s2.host[0];
1378 phba->hbq_put = NULL;
1379 }
1380
1381 /* mask off BAR0's flag bits 0 - 3 */
1382 phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
1383 (void __iomem *)phba->host_gp -
1384 (void __iomem *)phba->MBslimaddr;
1385 if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
1386 phba->pcb->hgpAddrHigh = bar_high;
1387 else
1388 phba->pcb->hgpAddrHigh = 0;
1389 /* write HGP data to SLIM at the required longword offset */
1390 memset(&hgp, 0, sizeof(struct lpfc_hgp));
1391
1392 for (i = 0; i < phba->sli.num_rings; i++) {
1393 lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
1394 sizeof(*phba->host_gp));
1395 }
1396 }
1397
1398 /* Setup Port Group offset */
1399 if (phba->sli_rev == 3)
1400 pgp_offset = offsetof(struct lpfc_sli2_slim,
1401 mbx.us.s3_pgp.port);
1402 else
1403 pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
1404 pdma_addr = phba->slim2p.phys + pgp_offset;
1405 phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
1406 phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);
1407
1408 /* Use callback routine to setp rings in the pcb */
1409 lpfc_config_pcb_setup(phba);
1410
1411 /* special handling for LC HBAs */
1412 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
1413 uint32_t hbainit[5];
1414
1415 lpfc_hba_init(phba, hbainit);
1416
1417 memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
1418 }
1419
1420 /* Swap PCB if needed */
1421 lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
1422 }
1423
1424 /**
1425 * lpfc_kill_board - Prepare a mailbox command for killing board
1426 * @phba: pointer to lpfc hba data structure.
1427 * @pmb: pointer to the driver internal queue element for mailbox command.
1428 *
1429 * The kill board mailbox command is used to tell firmware to perform a
1430 * graceful shutdown of a channel on a specified board to prepare for reset.
1431 * When the kill board mailbox command is received, the ER3 bit is set to 1
1432 * in the Host Status register and the ER Attention bit is set to 1 in the
1433 * Host Attention register of the HBA function that received the kill board
1434 * command.
1435 *
1436 * This routine prepares the mailbox command for killing the board in
1437 * preparation for a graceful shutdown.
1438 **/
1439 void
lpfc_kill_board(struct lpfc_hba * phba,LPFC_MBOXQ_t * pmb)1440 lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1441 {
1442 MAILBOX_t *mb = &pmb->u.mb;
1443
1444 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1445 mb->mbxCommand = MBX_KILL_BOARD;
1446 mb->mbxOwner = OWN_HOST;
1447 return;
1448 }
1449
1450 /**
1451 * lpfc_mbox_put - Put a mailbox cmd into the tail of driver's mailbox queue
1452 * @phba: pointer to lpfc hba data structure.
1453 * @mbq: pointer to the driver internal queue element for mailbox command.
1454 *
1455 * Driver maintains a internal mailbox command queue implemented as a linked
1456 * list. When a mailbox command is issued, it shall be put into the mailbox
1457 * command queue such that they shall be processed orderly as HBA can process
1458 * one mailbox command at a time.
1459 **/
1460 void
lpfc_mbox_put(struct lpfc_hba * phba,LPFC_MBOXQ_t * mbq)1461 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
1462 {
1463 struct lpfc_sli *psli;
1464
1465 psli = &phba->sli;
1466
1467 list_add_tail(&mbq->list, &psli->mboxq);
1468
1469 psli->mboxq_cnt++;
1470
1471 return;
1472 }
1473
1474 /**
1475 * lpfc_mbox_get - Remove a mailbox cmd from the head of driver's mailbox queue
1476 * @phba: pointer to lpfc hba data structure.
1477 *
1478 * Driver maintains a internal mailbox command queue implemented as a linked
1479 * list. When a mailbox command is issued, it shall be put into the mailbox
1480 * command queue such that they shall be processed orderly as HBA can process
1481 * one mailbox command at a time. After HBA finished processing a mailbox
1482 * command, the driver will remove a pending mailbox command from the head of
1483 * the mailbox command queue and send to the HBA for processing.
1484 *
1485 * Return codes
1486 * pointer to the driver internal queue element for mailbox command.
1487 **/
1488 LPFC_MBOXQ_t *
lpfc_mbox_get(struct lpfc_hba * phba)1489 lpfc_mbox_get(struct lpfc_hba * phba)
1490 {
1491 LPFC_MBOXQ_t *mbq = NULL;
1492 struct lpfc_sli *psli = &phba->sli;
1493
1494 list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
1495 if (mbq)
1496 psli->mboxq_cnt--;
1497
1498 return mbq;
1499 }
1500
1501 /**
1502 * __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
1503 * @phba: pointer to lpfc hba data structure.
1504 * @mbq: pointer to the driver internal queue element for mailbox command.
1505 *
1506 * This routine put the completed mailbox command into the mailbox command
1507 * complete list. This is the unlocked version of the routine. The mailbox
1508 * complete list is used by the driver worker thread to process mailbox
1509 * complete callback functions outside the driver interrupt handler.
1510 **/
1511 void
__lpfc_mbox_cmpl_put(struct lpfc_hba * phba,LPFC_MBOXQ_t * mbq)1512 __lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
1513 {
1514 list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
1515 }
1516
1517 /**
1518 * lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
1519 * @phba: pointer to lpfc hba data structure.
1520 * @mbq: pointer to the driver internal queue element for mailbox command.
1521 *
1522 * This routine put the completed mailbox command into the mailbox command
1523 * complete list. This is the locked version of the routine. The mailbox
1524 * complete list is used by the driver worker thread to process mailbox
1525 * complete callback functions outside the driver interrupt handler.
1526 **/
1527 void
lpfc_mbox_cmpl_put(struct lpfc_hba * phba,LPFC_MBOXQ_t * mbq)1528 lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
1529 {
1530 unsigned long iflag;
1531
1532 /* This function expects to be called from interrupt context */
1533 spin_lock_irqsave(&phba->hbalock, iflag);
1534 __lpfc_mbox_cmpl_put(phba, mbq);
1535 spin_unlock_irqrestore(&phba->hbalock, iflag);
1536 return;
1537 }
1538
1539 /**
1540 * lpfc_mbox_cmd_check - Check the validality of a mailbox command
1541 * @phba: pointer to lpfc hba data structure.
1542 * @mboxq: pointer to the driver internal queue element for mailbox command.
1543 *
1544 * This routine is to check whether a mailbox command is valid to be issued.
1545 * This check will be performed by both the mailbox issue API when a client
1546 * is to issue a mailbox command to the mailbox transport.
1547 *
1548 * Return 0 - pass the check, -ENODEV - fail the check
1549 **/
1550 int
lpfc_mbox_cmd_check(struct lpfc_hba * phba,LPFC_MBOXQ_t * mboxq)1551 lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1552 {
1553 /* Mailbox command that have a completion handler must also have a
1554 * vport specified.
1555 */
1556 if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
1557 mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
1558 if (!mboxq->vport) {
1559 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1560 "1814 Mbox x%x failed, no vport\n",
1561 mboxq->u.mb.mbxCommand);
1562 dump_stack();
1563 return -ENODEV;
1564 }
1565 }
1566 return 0;
1567 }
1568
1569 /**
1570 * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
1571 * @phba: pointer to lpfc hba data structure.
1572 *
1573 * This routine is to check whether the HBA device is ready for posting a
1574 * mailbox command. It is used by the mailbox transport API at the time the
1575 * to post a mailbox command to the device.
1576 *
1577 * Return 0 - pass the check, -ENODEV - fail the check
1578 **/
1579 int
lpfc_mbox_dev_check(struct lpfc_hba * phba)1580 lpfc_mbox_dev_check(struct lpfc_hba *phba)
1581 {
1582 /* If the PCI channel is in offline state, do not issue mbox */
1583 if (unlikely(pci_channel_offline(phba->pcidev)))
1584 return -ENODEV;
1585
1586 /* If the HBA is in error state, do not issue mbox */
1587 if (phba->link_state == LPFC_HBA_ERROR)
1588 return -ENODEV;
1589
1590 return 0;
1591 }
1592
1593 /**
1594 * lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
1595 * @phba: pointer to lpfc hba data structure.
1596 * @cmd: mailbox command code.
1597 *
1598 * This routine retrieves the proper timeout value according to the mailbox
1599 * command code.
1600 *
1601 * Return codes
1602 * Timeout value to be used for the given mailbox command
1603 **/
1604 int
lpfc_mbox_tmo_val(struct lpfc_hba * phba,LPFC_MBOXQ_t * mboxq)1605 lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1606 {
1607 MAILBOX_t *mbox = &mboxq->u.mb;
1608 uint8_t subsys, opcode;
1609
1610 switch (mbox->mbxCommand) {
1611 case MBX_WRITE_NV: /* 0x03 */
1612 case MBX_UPDATE_CFG: /* 0x1B */
1613 case MBX_DOWN_LOAD: /* 0x1C */
1614 case MBX_DEL_LD_ENTRY: /* 0x1D */
1615 case MBX_LOAD_AREA: /* 0x81 */
1616 case MBX_WRITE_WWN: /* 0x98 */
1617 case MBX_LOAD_EXP_ROM: /* 0x9C */
1618 return LPFC_MBOX_TMO_FLASH_CMD;
1619 case MBX_SLI4_CONFIG: /* 0x9b */
1620 subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
1621 opcode = lpfc_sli_config_mbox_opcode_get(phba, mboxq);
1622 if (subsys == LPFC_MBOX_SUBSYSTEM_COMMON) {
1623 switch (opcode) {
1624 case LPFC_MBOX_OPCODE_READ_OBJECT:
1625 case LPFC_MBOX_OPCODE_WRITE_OBJECT:
1626 case LPFC_MBOX_OPCODE_READ_OBJECT_LIST:
1627 case LPFC_MBOX_OPCODE_DELETE_OBJECT:
1628 case LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG:
1629 case LPFC_MBOX_OPCODE_GET_PROFILE_LIST:
1630 case LPFC_MBOX_OPCODE_SET_ACT_PROFILE:
1631 case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG:
1632 case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG:
1633 return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
1634 }
1635 }
1636 if (subsys == LPFC_MBOX_SUBSYSTEM_FCOE) {
1637 switch (opcode) {
1638 case LPFC_MBOX_OPCODE_FCOE_SET_FCLINK_SETTINGS:
1639 return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
1640 }
1641 }
1642 return LPFC_MBOX_SLI4_CONFIG_TMO;
1643 }
1644 return LPFC_MBOX_TMO;
1645 }
1646
1647 /**
1648 * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
1649 * @mbox: pointer to lpfc mbox command.
1650 * @sgentry: sge entry index.
1651 * @phyaddr: physical address for the sge
1652 * @length: Length of the sge.
1653 *
1654 * This routine sets up an entry in the non-embedded mailbox command at the sge
1655 * index location.
1656 **/
1657 void
lpfc_sli4_mbx_sge_set(struct lpfcMboxq * mbox,uint32_t sgentry,dma_addr_t phyaddr,uint32_t length)1658 lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
1659 dma_addr_t phyaddr, uint32_t length)
1660 {
1661 struct lpfc_mbx_nembed_cmd *nembed_sge;
1662
1663 nembed_sge = (struct lpfc_mbx_nembed_cmd *)
1664 &mbox->u.mqe.un.nembed_cmd;
1665 nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
1666 nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
1667 nembed_sge->sge[sgentry].length = length;
1668 }
1669
1670 /**
1671 * lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
1672 * @mbox: pointer to lpfc mbox command.
1673 * @sgentry: sge entry index.
1674 *
1675 * This routine gets an entry from the non-embedded mailbox command at the sge
1676 * index location.
1677 **/
1678 void
lpfc_sli4_mbx_sge_get(struct lpfcMboxq * mbox,uint32_t sgentry,struct lpfc_mbx_sge * sge)1679 lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
1680 struct lpfc_mbx_sge *sge)
1681 {
1682 struct lpfc_mbx_nembed_cmd *nembed_sge;
1683
1684 nembed_sge = (struct lpfc_mbx_nembed_cmd *)
1685 &mbox->u.mqe.un.nembed_cmd;
1686 sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
1687 sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
1688 sge->length = nembed_sge->sge[sgentry].length;
1689 }
1690
1691 /**
1692 * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
1693 * @phba: pointer to lpfc hba data structure.
1694 * @mbox: pointer to lpfc mbox command.
1695 *
1696 * This routine frees SLI4 specific mailbox command for sending IOCTL command.
1697 **/
1698 void
lpfc_sli4_mbox_cmd_free(struct lpfc_hba * phba,struct lpfcMboxq * mbox)1699 lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
1700 {
1701 struct lpfc_mbx_sli4_config *sli4_cfg;
1702 struct lpfc_mbx_sge sge;
1703 dma_addr_t phyaddr;
1704 uint32_t sgecount, sgentry;
1705
1706 sli4_cfg = &mbox->u.mqe.un.sli4_config;
1707
1708 /* For embedded mbox command, just free the mbox command */
1709 if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
1710 mempool_free(mbox, phba->mbox_mem_pool);
1711 return;
1712 }
1713
1714 /* For non-embedded mbox command, we need to free the pages first */
1715 sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
1716 /* There is nothing we can do if there is no sge address array */
1717 if (unlikely(!mbox->sge_array)) {
1718 mempool_free(mbox, phba->mbox_mem_pool);
1719 return;
1720 }
1721 /* Each non-embedded DMA memory was allocated in the length of a page */
1722 for (sgentry = 0; sgentry < sgecount; sgentry++) {
1723 lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
1724 phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
1725 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
1726 mbox->sge_array->addr[sgentry], phyaddr);
1727 }
1728 /* Free the sge address array memory */
1729 kfree(mbox->sge_array);
1730 /* Finally, free the mailbox command itself */
1731 mempool_free(mbox, phba->mbox_mem_pool);
1732 }
1733
1734 /**
1735 * lpfc_sli4_config - Initialize the SLI4 Config Mailbox command
1736 * @phba: pointer to lpfc hba data structure.
1737 * @mbox: pointer to lpfc mbox command.
1738 * @subsystem: The sli4 config sub mailbox subsystem.
1739 * @opcode: The sli4 config sub mailbox command opcode.
1740 * @length: Length of the sli4 config mailbox command (including sub-header).
1741 *
1742 * This routine sets up the header fields of SLI4 specific mailbox command
1743 * for sending IOCTL command.
1744 *
1745 * Return: the actual length of the mbox command allocated (mostly useful
1746 * for none embedded mailbox command).
1747 **/
1748 int
lpfc_sli4_config(struct lpfc_hba * phba,struct lpfcMboxq * mbox,uint8_t subsystem,uint8_t opcode,uint32_t length,bool emb)1749 lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
1750 uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
1751 {
1752 struct lpfc_mbx_sli4_config *sli4_config;
1753 union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
1754 uint32_t alloc_len;
1755 uint32_t resid_len;
1756 uint32_t pagen, pcount;
1757 void *viraddr;
1758 dma_addr_t phyaddr;
1759
1760 /* Set up SLI4 mailbox command header fields */
1761 memset(mbox, 0, sizeof(*mbox));
1762 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
1763
1764 /* Set up SLI4 ioctl command header fields */
1765 sli4_config = &mbox->u.mqe.un.sli4_config;
1766
1767 /* Setup for the embedded mbox command */
1768 if (emb) {
1769 /* Set up main header fields */
1770 bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
1771 sli4_config->header.cfg_mhdr.payload_length = length;
1772 /* Set up sub-header fields following main header */
1773 bf_set(lpfc_mbox_hdr_opcode,
1774 &sli4_config->header.cfg_shdr.request, opcode);
1775 bf_set(lpfc_mbox_hdr_subsystem,
1776 &sli4_config->header.cfg_shdr.request, subsystem);
1777 sli4_config->header.cfg_shdr.request.request_length =
1778 length - LPFC_MBX_CMD_HDR_LENGTH;
1779 return length;
1780 }
1781
1782 /* Setup for the non-embedded mbox command */
1783 pcount = (SLI4_PAGE_ALIGN(length))/SLI4_PAGE_SIZE;
1784 pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
1785 LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
1786 /* Allocate record for keeping SGE virtual addresses */
1787 mbox->sge_array = kzalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
1788 GFP_KERNEL);
1789 if (!mbox->sge_array) {
1790 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1791 "2527 Failed to allocate non-embedded SGE "
1792 "array.\n");
1793 return 0;
1794 }
1795 for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
1796 /* The DMA memory is always allocated in the length of a
1797 * page even though the last SGE might not fill up to a
1798 * page, this is used as a priori size of SLI4_PAGE_SIZE for
1799 * the later DMA memory free.
1800 */
1801 viraddr = dma_alloc_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
1802 &phyaddr, GFP_KERNEL);
1803 /* In case of malloc fails, proceed with whatever we have */
1804 if (!viraddr)
1805 break;
1806 memset(viraddr, 0, SLI4_PAGE_SIZE);
1807 mbox->sge_array->addr[pagen] = viraddr;
1808 /* Keep the first page for later sub-header construction */
1809 if (pagen == 0)
1810 cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
1811 resid_len = length - alloc_len;
1812 if (resid_len > SLI4_PAGE_SIZE) {
1813 lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
1814 SLI4_PAGE_SIZE);
1815 alloc_len += SLI4_PAGE_SIZE;
1816 } else {
1817 lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
1818 resid_len);
1819 alloc_len = length;
1820 }
1821 }
1822
1823 /* Set up main header fields in mailbox command */
1824 sli4_config->header.cfg_mhdr.payload_length = alloc_len;
1825 bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
1826
1827 /* Set up sub-header fields into the first page */
1828 if (pagen > 0) {
1829 bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
1830 bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
1831 cfg_shdr->request.request_length =
1832 alloc_len - sizeof(union lpfc_sli4_cfg_shdr);
1833 }
1834 /* The sub-header is in DMA memory, which needs endian converstion */
1835 if (cfg_shdr)
1836 lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
1837 sizeof(union lpfc_sli4_cfg_shdr));
1838 return alloc_len;
1839 }
1840
1841 /**
1842 * lpfc_sli4_mbox_rsrc_extent - Initialize the opcode resource extent.
1843 * @phba: pointer to lpfc hba data structure.
1844 * @mbox: pointer to an allocated lpfc mbox resource.
1845 * @exts_count: the number of extents, if required, to allocate.
1846 * @rsrc_type: the resource extent type.
1847 * @emb: true if LPFC_SLI4_MBX_EMBED. false if LPFC_SLI4_MBX_NEMBED.
1848 *
1849 * This routine completes the subcommand header for SLI4 resource extent
1850 * mailbox commands. It is called after lpfc_sli4_config. The caller must
1851 * pass an allocated mailbox and the attributes required to initialize the
1852 * mailbox correctly.
1853 *
1854 * Return: the actual length of the mbox command allocated.
1855 **/
1856 int
lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba * phba,struct lpfcMboxq * mbox,uint16_t exts_count,uint16_t rsrc_type,bool emb)1857 lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
1858 uint16_t exts_count, uint16_t rsrc_type, bool emb)
1859 {
1860 uint8_t opcode = 0;
1861 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc_extnt = NULL;
1862 void *virtaddr = NULL;
1863
1864 /* Set up SLI4 ioctl command header fields */
1865 if (emb == LPFC_SLI4_MBX_NEMBED) {
1866 /* Get the first SGE entry from the non-embedded DMA memory */
1867 virtaddr = mbox->sge_array->addr[0];
1868 if (virtaddr == NULL)
1869 return 1;
1870 n_rsrc_extnt = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
1871 }
1872
1873 /*
1874 * The resource type is common to all extent Opcodes and resides in the
1875 * same position.
1876 */
1877 if (emb == LPFC_SLI4_MBX_EMBED)
1878 bf_set(lpfc_mbx_alloc_rsrc_extents_type,
1879 &mbox->u.mqe.un.alloc_rsrc_extents.u.req,
1880 rsrc_type);
1881 else {
1882 /* This is DMA data. Byteswap is required. */
1883 bf_set(lpfc_mbx_alloc_rsrc_extents_type,
1884 n_rsrc_extnt, rsrc_type);
1885 lpfc_sli_pcimem_bcopy(&n_rsrc_extnt->word4,
1886 &n_rsrc_extnt->word4,
1887 sizeof(uint32_t));
1888 }
1889
1890 /* Complete the initialization for the particular Opcode. */
1891 opcode = lpfc_sli_config_mbox_opcode_get(phba, mbox);
1892 switch (opcode) {
1893 case LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT:
1894 if (emb == LPFC_SLI4_MBX_EMBED)
1895 bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
1896 &mbox->u.mqe.un.alloc_rsrc_extents.u.req,
1897 exts_count);
1898 else
1899 bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
1900 n_rsrc_extnt, exts_count);
1901 break;
1902 case LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT:
1903 case LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO:
1904 case LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT:
1905 /* Initialization is complete.*/
1906 break;
1907 default:
1908 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1909 "2929 Resource Extent Opcode x%x is "
1910 "unsupported\n", opcode);
1911 return 1;
1912 }
1913
1914 return 0;
1915 }
1916
1917 /**
1918 * lpfc_sli_config_mbox_subsys_get - Get subsystem from a sli_config mbox cmd
1919 * @phba: pointer to lpfc hba data structure.
1920 * @mbox: pointer to lpfc mbox command queue entry.
1921 *
1922 * This routine gets the subsystem from a SLI4 specific SLI_CONFIG mailbox
1923 * command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if the
1924 * sub-header is not present, subsystem LPFC_MBOX_SUBSYSTEM_NA (0x0) shall
1925 * be returned.
1926 **/
1927 uint8_t
lpfc_sli_config_mbox_subsys_get(struct lpfc_hba * phba,LPFC_MBOXQ_t * mbox)1928 lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
1929 {
1930 struct lpfc_mbx_sli4_config *sli4_cfg;
1931 union lpfc_sli4_cfg_shdr *cfg_shdr;
1932
1933 if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
1934 return LPFC_MBOX_SUBSYSTEM_NA;
1935 sli4_cfg = &mbox->u.mqe.un.sli4_config;
1936
1937 /* For embedded mbox command, get opcode from embedded sub-header*/
1938 if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
1939 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
1940 return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
1941 }
1942
1943 /* For non-embedded mbox command, get opcode from first dma page */
1944 if (unlikely(!mbox->sge_array))
1945 return LPFC_MBOX_SUBSYSTEM_NA;
1946 cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
1947 return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
1948 }
1949
1950 /**
1951 * lpfc_sli_config_mbox_opcode_get - Get opcode from a sli_config mbox cmd
1952 * @phba: pointer to lpfc hba data structure.
1953 * @mbox: pointer to lpfc mbox command queue entry.
1954 *
1955 * This routine gets the opcode from a SLI4 specific SLI_CONFIG mailbox
1956 * command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if
1957 * the sub-header is not present, opcode LPFC_MBOX_OPCODE_NA (0x0) be
1958 * returned.
1959 **/
1960 uint8_t
lpfc_sli_config_mbox_opcode_get(struct lpfc_hba * phba,LPFC_MBOXQ_t * mbox)1961 lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
1962 {
1963 struct lpfc_mbx_sli4_config *sli4_cfg;
1964 union lpfc_sli4_cfg_shdr *cfg_shdr;
1965
1966 if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
1967 return LPFC_MBOX_OPCODE_NA;
1968 sli4_cfg = &mbox->u.mqe.un.sli4_config;
1969
1970 /* For embedded mbox command, get opcode from embedded sub-header*/
1971 if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
1972 cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
1973 return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
1974 }
1975
1976 /* For non-embedded mbox command, get opcode from first dma page */
1977 if (unlikely(!mbox->sge_array))
1978 return LPFC_MBOX_OPCODE_NA;
1979 cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
1980 return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
1981 }
1982
1983 /**
1984 * lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd
1985 * @phba: pointer to lpfc hba data structure.
1986 * @fcf_index: index to fcf table.
1987 *
1988 * This routine routine allocates and constructs non-embedded mailbox command
1989 * for reading a FCF table entry referred by @fcf_index.
1990 *
1991 * Return: pointer to the mailbox command constructed if successful, otherwise
1992 * NULL.
1993 **/
1994 int
lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba * phba,struct lpfcMboxq * mboxq,uint16_t fcf_index)1995 lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba,
1996 struct lpfcMboxq *mboxq,
1997 uint16_t fcf_index)
1998 {
1999 void *virt_addr;
2000 dma_addr_t phys_addr;
2001 uint8_t *bytep;
2002 struct lpfc_mbx_sge sge;
2003 uint32_t alloc_len, req_len;
2004 struct lpfc_mbx_read_fcf_tbl *read_fcf;
2005
2006 if (!mboxq)
2007 return -ENOMEM;
2008
2009 req_len = sizeof(struct fcf_record) +
2010 sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
2011
2012 /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
2013 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2014 LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
2015 LPFC_SLI4_MBX_NEMBED);
2016
2017 if (alloc_len < req_len) {
2018 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2019 "0291 Allocated DMA memory size (x%x) is "
2020 "less than the requested DMA memory "
2021 "size (x%x)\n", alloc_len, req_len);
2022 return -ENOMEM;
2023 }
2024
2025 /* Get the first SGE entry from the non-embedded DMA memory. This
2026 * routine only uses a single SGE.
2027 */
2028 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
2029 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
2030 virt_addr = mboxq->sge_array->addr[0];
2031 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
2032
2033 /* Set up command fields */
2034 bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
2035 /* Perform necessary endian conversion */
2036 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
2037 lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
2038
2039 return 0;
2040 }
2041
2042 /**
2043 * lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
2044 * @mboxq: pointer to lpfc mbox command.
2045 *
2046 * This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
2047 * mailbox command.
2048 **/
2049 void
lpfc_request_features(struct lpfc_hba * phba,struct lpfcMboxq * mboxq)2050 lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
2051 {
2052 /* Set up SLI4 mailbox command header fields */
2053 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
2054 bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);
2055
2056 /* Set up host requested features. */
2057 bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
2058 bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);
2059
2060 /* Enable DIF (block guard) only if configured to do so. */
2061 if (phba->cfg_enable_bg)
2062 bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);
2063
2064 /* Enable NPIV only if configured to do so. */
2065 if (phba->max_vpi && phba->cfg_enable_npiv)
2066 bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);
2067
2068 return;
2069 }
2070
2071 /**
2072 * lpfc_init_vfi - Initialize the INIT_VFI mailbox command
2073 * @mbox: pointer to lpfc mbox command to initialize.
2074 * @vport: Vport associated with the VF.
2075 *
2076 * This routine initializes @mbox to all zeros and then fills in the mailbox
2077 * fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
2078 * in the context of an FCF. The driver issues this command to setup a VFI
2079 * before issuing a FLOGI to login to the VSAN. The driver should also issue a
2080 * REG_VFI after a successful VSAN login.
2081 **/
2082 void
lpfc_init_vfi(struct lpfcMboxq * mbox,struct lpfc_vport * vport)2083 lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
2084 {
2085 struct lpfc_mbx_init_vfi *init_vfi;
2086
2087 memset(mbox, 0, sizeof(*mbox));
2088 mbox->vport = vport;
2089 init_vfi = &mbox->u.mqe.un.init_vfi;
2090 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
2091 bf_set(lpfc_init_vfi_vr, init_vfi, 1);
2092 bf_set(lpfc_init_vfi_vt, init_vfi, 1);
2093 bf_set(lpfc_init_vfi_vp, init_vfi, 1);
2094 bf_set(lpfc_init_vfi_vfi, init_vfi,
2095 vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2096 bf_set(lpfc_init_vfi_vpi, init_vfi,
2097 vport->phba->vpi_ids[vport->vpi]);
2098 bf_set(lpfc_init_vfi_fcfi, init_vfi,
2099 vport->phba->fcf.fcfi);
2100 }
2101
2102 /**
2103 * lpfc_reg_vfi - Initialize the REG_VFI mailbox command
2104 * @mbox: pointer to lpfc mbox command to initialize.
2105 * @vport: vport associated with the VF.
2106 * @phys: BDE DMA bus address used to send the service parameters to the HBA.
2107 *
2108 * This routine initializes @mbox to all zeros and then fills in the mailbox
2109 * fields from @vport, and uses @buf as a DMAable buffer to send the vport's
2110 * fc service parameters to the HBA for this VFI. REG_VFI configures virtual
2111 * fabrics identified by VFI in the context of an FCF.
2112 **/
2113 void
lpfc_reg_vfi(struct lpfcMboxq * mbox,struct lpfc_vport * vport,dma_addr_t phys)2114 lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
2115 {
2116 struct lpfc_mbx_reg_vfi *reg_vfi;
2117
2118 memset(mbox, 0, sizeof(*mbox));
2119 reg_vfi = &mbox->u.mqe.un.reg_vfi;
2120 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
2121 bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
2122 bf_set(lpfc_reg_vfi_vfi, reg_vfi,
2123 vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2124 bf_set(lpfc_reg_vfi_fcfi, reg_vfi, vport->phba->fcf.fcfi);
2125 bf_set(lpfc_reg_vfi_vpi, reg_vfi, vport->phba->vpi_ids[vport->vpi]);
2126 memcpy(reg_vfi->wwn, &vport->fc_portname, sizeof(struct lpfc_name));
2127 reg_vfi->wwn[0] = cpu_to_le32(reg_vfi->wwn[0]);
2128 reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
2129 reg_vfi->e_d_tov = vport->phba->fc_edtov;
2130 reg_vfi->r_a_tov = vport->phba->fc_ratov;
2131 reg_vfi->bde.addrHigh = putPaddrHigh(phys);
2132 reg_vfi->bde.addrLow = putPaddrLow(phys);
2133 reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
2134 reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2135 bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
2136 lpfc_printf_vlog(vport, KERN_INFO, LOG_MBOX,
2137 "3134 Register VFI, mydid:x%x, fcfi:%d, "
2138 " vfi:%d, vpi:%d, fc_pname:%x%x\n",
2139 vport->fc_myDID,
2140 vport->phba->fcf.fcfi,
2141 vport->phba->sli4_hba.vfi_ids[vport->vfi],
2142 vport->phba->vpi_ids[vport->vpi],
2143 reg_vfi->wwn[0], reg_vfi->wwn[1]);
2144 }
2145
2146 /**
2147 * lpfc_init_vpi - Initialize the INIT_VPI mailbox command
2148 * @phba: pointer to the hba structure to init the VPI for.
2149 * @mbox: pointer to lpfc mbox command to initialize.
2150 * @vpi: VPI to be initialized.
2151 *
2152 * The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
2153 * command to activate a virtual N_Port. The HBA assigns a MAC address to use
2154 * with the virtual N Port. The SLI Host issues this command before issuing a
2155 * FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
2156 * successful virtual NPort login.
2157 **/
2158 void
lpfc_init_vpi(struct lpfc_hba * phba,struct lpfcMboxq * mbox,uint16_t vpi)2159 lpfc_init_vpi(struct lpfc_hba *phba, struct lpfcMboxq *mbox, uint16_t vpi)
2160 {
2161 memset(mbox, 0, sizeof(*mbox));
2162 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
2163 bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi,
2164 phba->vpi_ids[vpi]);
2165 bf_set(lpfc_init_vpi_vfi, &mbox->u.mqe.un.init_vpi,
2166 phba->sli4_hba.vfi_ids[phba->pport->vfi]);
2167 }
2168
2169 /**
2170 * lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
2171 * @mbox: pointer to lpfc mbox command to initialize.
2172 * @vport: vport associated with the VF.
2173 *
2174 * The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
2175 * (logical NPort) into the inactive state. The SLI Host must have logged out
2176 * and unregistered all remote N_Ports to abort any activity on the virtual
2177 * fabric. The SLI Port posts the mailbox response after marking the virtual
2178 * fabric inactive.
2179 **/
2180 void
lpfc_unreg_vfi(struct lpfcMboxq * mbox,struct lpfc_vport * vport)2181 lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
2182 {
2183 memset(mbox, 0, sizeof(*mbox));
2184 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
2185 bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi,
2186 vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2187 }
2188
2189 /**
2190 * lpfc_sli4_dump_cfg_rg23 - Dump sli4 port config region 23
2191 * @phba: pointer to the hba structure containing.
2192 * @mbox: pointer to lpfc mbox command to initialize.
2193 *
2194 * This function create a SLI4 dump mailbox command to dump configure
2195 * region 23.
2196 **/
2197 int
lpfc_sli4_dump_cfg_rg23(struct lpfc_hba * phba,struct lpfcMboxq * mbox)2198 lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2199 {
2200 struct lpfc_dmabuf *mp = NULL;
2201 MAILBOX_t *mb;
2202
2203 memset(mbox, 0, sizeof(*mbox));
2204 mb = &mbox->u.mb;
2205
2206 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2207 if (mp)
2208 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2209
2210 if (!mp || !mp->virt) {
2211 kfree(mp);
2212 /* dump config region 23 failed to allocate memory */
2213 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2214 "2569 lpfc dump config region 23: memory"
2215 " allocation failed\n");
2216 return 1;
2217 }
2218
2219 memset(mp->virt, 0, LPFC_BPL_SIZE);
2220 INIT_LIST_HEAD(&mp->list);
2221
2222 /* save address for completion */
2223 mbox->context1 = (uint8_t *) mp;
2224
2225 mb->mbxCommand = MBX_DUMP_MEMORY;
2226 mb->un.varDmp.type = DMP_NV_PARAMS;
2227 mb->un.varDmp.region_id = DMP_REGION_23;
2228 mb->un.varDmp.sli4_length = DMP_RGN23_SIZE;
2229 mb->un.varWords[3] = putPaddrLow(mp->phys);
2230 mb->un.varWords[4] = putPaddrHigh(mp->phys);
2231 return 0;
2232 }
2233
2234 /**
2235 * lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
2236 * @phba: pointer to the hba structure containing the FCF index and RQ ID.
2237 * @mbox: pointer to lpfc mbox command to initialize.
2238 *
2239 * The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
2240 * SLI Host uses the command to activate an FCF after it has acquired FCF
2241 * information via a READ_FCF mailbox command. This mailbox command also is used
2242 * to indicate where received unsolicited frames from this FCF will be sent. By
2243 * default this routine will set up the FCF to forward all unsolicited frames
2244 * the the RQ ID passed in the @phba. This can be overridden by the caller for
2245 * more complicated setups.
2246 **/
2247 void
lpfc_reg_fcfi(struct lpfc_hba * phba,struct lpfcMboxq * mbox)2248 lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2249 {
2250 struct lpfc_mbx_reg_fcfi *reg_fcfi;
2251
2252 memset(mbox, 0, sizeof(*mbox));
2253 reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
2254 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
2255 bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi, phba->sli4_hba.hdr_rq->queue_id);
2256 bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
2257 bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
2258 bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
2259 bf_set(lpfc_reg_fcfi_info_index, reg_fcfi,
2260 phba->fcf.current_rec.fcf_indx);
2261 /* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */
2262 bf_set(lpfc_reg_fcfi_mam, reg_fcfi, (~phba->fcf.addr_mode) & 0x3);
2263 if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
2264 bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
2265 bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
2266 phba->fcf.current_rec.vlan_id);
2267 }
2268 }
2269
2270 /**
2271 * lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
2272 * @mbox: pointer to lpfc mbox command to initialize.
2273 * @fcfi: FCFI to be unregistered.
2274 *
2275 * The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
2276 * The SLI Host uses the command to inactivate an FCFI.
2277 **/
2278 void
lpfc_unreg_fcfi(struct lpfcMboxq * mbox,uint16_t fcfi)2279 lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
2280 {
2281 memset(mbox, 0, sizeof(*mbox));
2282 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
2283 bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
2284 }
2285
2286 /**
2287 * lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
2288 * @mbox: pointer to lpfc mbox command to initialize.
2289 * @ndlp: The nodelist structure that describes the RPI to resume.
2290 *
2291 * The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
2292 * link event.
2293 **/
2294 void
lpfc_resume_rpi(struct lpfcMboxq * mbox,struct lpfc_nodelist * ndlp)2295 lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
2296 {
2297 struct lpfc_hba *phba = ndlp->phba;
2298 struct lpfc_mbx_resume_rpi *resume_rpi;
2299
2300 memset(mbox, 0, sizeof(*mbox));
2301 resume_rpi = &mbox->u.mqe.un.resume_rpi;
2302 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
2303 bf_set(lpfc_resume_rpi_index, resume_rpi,
2304 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2305 bf_set(lpfc_resume_rpi_ii, resume_rpi, RESUME_INDEX_RPI);
2306 resume_rpi->event_tag = ndlp->phba->fc_eventTag;
2307 }
2308
2309 /**
2310 * lpfc_supported_pages - Initialize the PORT_CAPABILITIES supported pages
2311 * mailbox command.
2312 * @mbox: pointer to lpfc mbox command to initialize.
2313 *
2314 * The PORT_CAPABILITIES supported pages mailbox command is issued to
2315 * retrieve the particular feature pages supported by the port.
2316 **/
2317 void
lpfc_supported_pages(struct lpfcMboxq * mbox)2318 lpfc_supported_pages(struct lpfcMboxq *mbox)
2319 {
2320 struct lpfc_mbx_supp_pages *supp_pages;
2321
2322 memset(mbox, 0, sizeof(*mbox));
2323 supp_pages = &mbox->u.mqe.un.supp_pages;
2324 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES);
2325 bf_set(cpn, supp_pages, LPFC_SUPP_PAGES);
2326 }
2327
2328 /**
2329 * lpfc_pc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params mbox cmd.
2330 * @mbox: pointer to lpfc mbox command to initialize.
2331 *
2332 * The PORT_CAPABILITIES SLI4 parameters mailbox command is issued to
2333 * retrieve the particular SLI4 features supported by the port.
2334 **/
2335 void
lpfc_pc_sli4_params(struct lpfcMboxq * mbox)2336 lpfc_pc_sli4_params(struct lpfcMboxq *mbox)
2337 {
2338 struct lpfc_mbx_pc_sli4_params *sli4_params;
2339
2340 memset(mbox, 0, sizeof(*mbox));
2341 sli4_params = &mbox->u.mqe.un.sli4_params;
2342 bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES);
2343 bf_set(cpn, sli4_params, LPFC_SLI4_PARAMETERS);
2344 }
2345