xref: /linux/drivers/scsi/lpfc/lpfc_mbox.c (revision c537b994505099b7197e7d3125b942ecbcc51eb6)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2004-2006 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/interrupt.h>
25 
26 #include <scsi/scsi_device.h>
27 #include <scsi/scsi_transport_fc.h>
28 
29 #include <scsi/scsi.h>
30 
31 #include "lpfc_hw.h"
32 #include "lpfc_sli.h"
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
35 #include "lpfc.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_crtn.h"
38 #include "lpfc_compat.h"
39 
40 /**********************************************/
41 
42 /*                mailbox command             */
43 /**********************************************/
44 void
45 lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
46 {
47 	MAILBOX_t *mb;
48 	void *ctx;
49 
50 	mb = &pmb->mb;
51 	ctx = pmb->context2;
52 
53 	/* Setup to dump VPD region */
54 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
55 	mb->mbxCommand = MBX_DUMP_MEMORY;
56 	mb->un.varDmp.cv = 1;
57 	mb->un.varDmp.type = DMP_NV_PARAMS;
58 	mb->un.varDmp.entry_index = offset;
59 	mb->un.varDmp.region_id = DMP_REGION_VPD;
60 	mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
61 	mb->un.varDmp.co = 0;
62 	mb->un.varDmp.resp_offset = 0;
63 	pmb->context2 = ctx;
64 	mb->mbxOwner = OWN_HOST;
65 	return;
66 }
67 
68 /**********************************************/
69 /*  lpfc_read_nv  Issue a READ NVPARAM        */
70 /*                mailbox command             */
71 /**********************************************/
72 void
73 lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
74 {
75 	MAILBOX_t *mb;
76 
77 	mb = &pmb->mb;
78 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
79 	mb->mbxCommand = MBX_READ_NV;
80 	mb->mbxOwner = OWN_HOST;
81 	return;
82 }
83 
84 /**********************************************/
85 /*  lpfc_read_la  Issue a READ LA             */
86 /*                mailbox command             */
87 /**********************************************/
88 int
89 lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
90 {
91 	MAILBOX_t *mb;
92 	struct lpfc_sli *psli;
93 
94 	psli = &phba->sli;
95 	mb = &pmb->mb;
96 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
97 
98 	INIT_LIST_HEAD(&mp->list);
99 	mb->mbxCommand = MBX_READ_LA64;
100 	mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128;
101 	mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
102 	mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys);
103 
104 	/* Save address for later completion and set the owner to host so that
105 	 * the FW knows this mailbox is available for processing.
106 	 */
107 	pmb->context1 = (uint8_t *) mp;
108 	mb->mbxOwner = OWN_HOST;
109 	return (0);
110 }
111 
112 /**********************************************/
113 /*  lpfc_clear_la  Issue a CLEAR LA           */
114 /*                 mailbox command            */
115 /**********************************************/
116 void
117 lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
118 {
119 	MAILBOX_t *mb;
120 
121 	mb = &pmb->mb;
122 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
123 
124 	mb->un.varClearLA.eventTag = phba->fc_eventTag;
125 	mb->mbxCommand = MBX_CLEAR_LA;
126 	mb->mbxOwner = OWN_HOST;
127 	return;
128 }
129 
130 /**************************************************/
131 /*  lpfc_config_link  Issue a CONFIG LINK         */
132 /*                    mailbox command             */
133 /**************************************************/
134 void
135 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
136 {
137 	MAILBOX_t *mb = &pmb->mb;
138 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
139 
140 	/* NEW_FEATURE
141 	 * SLI-2, Coalescing Response Feature.
142 	 */
143 	if (phba->cfg_cr_delay) {
144 		mb->un.varCfgLnk.cr = 1;
145 		mb->un.varCfgLnk.ci = 1;
146 		mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
147 		mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
148 	}
149 
150 	mb->un.varCfgLnk.myId = phba->fc_myDID;
151 	mb->un.varCfgLnk.edtov = phba->fc_edtov;
152 	mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
153 	mb->un.varCfgLnk.ratov = phba->fc_ratov;
154 	mb->un.varCfgLnk.rttov = phba->fc_rttov;
155 	mb->un.varCfgLnk.altov = phba->fc_altov;
156 	mb->un.varCfgLnk.crtov = phba->fc_crtov;
157 	mb->un.varCfgLnk.citov = phba->fc_citov;
158 
159 	if (phba->cfg_ack0)
160 		mb->un.varCfgLnk.ack0_enable = 1;
161 
162 	mb->mbxCommand = MBX_CONFIG_LINK;
163 	mb->mbxOwner = OWN_HOST;
164 	return;
165 }
166 
167 /**********************************************/
168 /*  lpfc_init_link  Issue an INIT LINK        */
169 /*                  mailbox command           */
170 /**********************************************/
171 void
172 lpfc_init_link(struct lpfc_hba * phba,
173 	       LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
174 {
175 	lpfc_vpd_t *vpd;
176 	struct lpfc_sli *psli;
177 	MAILBOX_t *mb;
178 
179 	mb = &pmb->mb;
180 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
181 
182 	psli = &phba->sli;
183 	switch (topology) {
184 	case FLAGS_TOPOLOGY_MODE_LOOP_PT:
185 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
186 		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
187 		break;
188 	case FLAGS_TOPOLOGY_MODE_PT_PT:
189 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
190 		break;
191 	case FLAGS_TOPOLOGY_MODE_LOOP:
192 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
193 		break;
194 	case FLAGS_TOPOLOGY_MODE_PT_LOOP:
195 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
196 		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
197 		break;
198 	case FLAGS_LOCAL_LB:
199 		mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
200 		break;
201 	}
202 
203 	/* Enable asynchronous ABTS responses from firmware */
204 	mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
205 
206 	/* NEW_FEATURE
207 	 * Setting up the link speed
208 	 */
209 	vpd = &phba->vpd;
210 	if (vpd->rev.feaLevelHigh >= 0x02){
211 		switch(linkspeed){
212 			case LINK_SPEED_1G:
213 			case LINK_SPEED_2G:
214 			case LINK_SPEED_4G:
215 				mb->un.varInitLnk.link_flags |=
216 							FLAGS_LINK_SPEED;
217 				mb->un.varInitLnk.link_speed = linkspeed;
218 			break;
219 			case LINK_SPEED_AUTO:
220 			default:
221 				mb->un.varInitLnk.link_speed =
222 							LINK_SPEED_AUTO;
223 			break;
224 		}
225 
226 	}
227 	else
228 		mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
229 
230 	mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
231 	mb->mbxOwner = OWN_HOST;
232 	mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
233 	return;
234 }
235 
236 /**********************************************/
237 /*  lpfc_read_sparam  Issue a READ SPARAM     */
238 /*                    mailbox command         */
239 /**********************************************/
240 int
241 lpfc_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
242 {
243 	struct lpfc_dmabuf *mp;
244 	MAILBOX_t *mb;
245 	struct lpfc_sli *psli;
246 
247 	psli = &phba->sli;
248 	mb = &pmb->mb;
249 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
250 
251 	mb->mbxOwner = OWN_HOST;
252 
253 	/* Get a buffer to hold the HBAs Service Parameters */
254 
255 	if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
256 	    ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
257 		kfree(mp);
258 		mb->mbxCommand = MBX_READ_SPARM64;
259 		/* READ_SPARAM: no buffers */
260 		lpfc_printf_log(phba,
261 			        KERN_WARNING,
262 			        LOG_MBOX,
263 			        "%d:0301 READ_SPARAM: no buffers\n",
264 			        phba->brd_no);
265 		return (1);
266 	}
267 	INIT_LIST_HEAD(&mp->list);
268 	mb->mbxCommand = MBX_READ_SPARM64;
269 	mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
270 	mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
271 	mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
272 
273 	/* save address for completion */
274 	pmb->context1 = mp;
275 
276 	return (0);
277 }
278 
279 /********************************************/
280 /*  lpfc_unreg_did  Issue a UNREG_DID       */
281 /*                  mailbox command         */
282 /********************************************/
283 void
284 lpfc_unreg_did(struct lpfc_hba * phba, uint32_t did, LPFC_MBOXQ_t * pmb)
285 {
286 	MAILBOX_t *mb;
287 
288 	mb = &pmb->mb;
289 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
290 
291 	mb->un.varUnregDID.did = did;
292 
293 	mb->mbxCommand = MBX_UNREG_D_ID;
294 	mb->mbxOwner = OWN_HOST;
295 	return;
296 }
297 
298 /**********************************************/
299 /*  lpfc_read_nv  Issue a READ CONFIG         */
300 /*                mailbox command             */
301 /**********************************************/
302 void
303 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
304 {
305 	MAILBOX_t *mb;
306 
307 	mb = &pmb->mb;
308 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
309 
310 	mb->mbxCommand = MBX_READ_CONFIG;
311 	mb->mbxOwner = OWN_HOST;
312 	return;
313 }
314 
315 /*************************************************/
316 /*  lpfc_read_lnk_stat  Issue a READ LINK STATUS */
317 /*                mailbox command                */
318 /*************************************************/
319 void
320 lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
321 {
322 	MAILBOX_t *mb;
323 
324 	mb = &pmb->mb;
325 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
326 
327 	mb->mbxCommand = MBX_READ_LNK_STAT;
328 	mb->mbxOwner = OWN_HOST;
329 	return;
330 }
331 
332 /********************************************/
333 /*  lpfc_reg_login  Issue a REG_LOGIN       */
334 /*                  mailbox command         */
335 /********************************************/
336 int
337 lpfc_reg_login(struct lpfc_hba * phba,
338 	       uint32_t did, uint8_t * param, LPFC_MBOXQ_t * pmb, uint32_t flag)
339 {
340 	uint8_t *sparam;
341 	struct lpfc_dmabuf *mp;
342 	MAILBOX_t *mb;
343 	struct lpfc_sli *psli;
344 
345 	psli = &phba->sli;
346 	mb = &pmb->mb;
347 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
348 
349 	mb->un.varRegLogin.rpi = 0;
350 	mb->un.varRegLogin.did = did;
351 	mb->un.varWords[30] = flag;	/* Set flag to issue action on cmpl */
352 
353 	mb->mbxOwner = OWN_HOST;
354 
355 	/* Get a buffer to hold NPorts Service Parameters */
356 	if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == NULL) ||
357 	    ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
358 		kfree(mp);
359 		mb->mbxCommand = MBX_REG_LOGIN64;
360 		/* REG_LOGIN: no buffers */
361 		lpfc_printf_log(phba,
362 			       KERN_WARNING,
363 			       LOG_MBOX,
364 			       "%d:0302 REG_LOGIN: no buffers Data x%x x%x\n",
365 			       phba->brd_no,
366 			       (uint32_t) did, (uint32_t) flag);
367 		return (1);
368 	}
369 	INIT_LIST_HEAD(&mp->list);
370 	sparam = mp->virt;
371 
372 	/* Copy param's into a new buffer */
373 	memcpy(sparam, param, sizeof (struct serv_parm));
374 
375 	/* save address for completion */
376 	pmb->context1 = (uint8_t *) mp;
377 
378 	mb->mbxCommand = MBX_REG_LOGIN64;
379 	mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
380 	mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
381 	mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
382 
383 	return (0);
384 }
385 
386 /**********************************************/
387 /*  lpfc_unreg_login  Issue a UNREG_LOGIN     */
388 /*                    mailbox command         */
389 /**********************************************/
390 void
391 lpfc_unreg_login(struct lpfc_hba * phba, uint32_t rpi, LPFC_MBOXQ_t * pmb)
392 {
393 	MAILBOX_t *mb;
394 
395 	mb = &pmb->mb;
396 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
397 
398 	mb->un.varUnregLogin.rpi = (uint16_t) rpi;
399 	mb->un.varUnregLogin.rsvd1 = 0;
400 
401 	mb->mbxCommand = MBX_UNREG_LOGIN;
402 	mb->mbxOwner = OWN_HOST;
403 	return;
404 }
405 
406 static void
407 lpfc_config_pcb_setup(struct lpfc_hba * phba)
408 {
409 	struct lpfc_sli *psli = &phba->sli;
410 	struct lpfc_sli_ring *pring;
411 	PCB_t *pcbp = &phba->slim2p->pcb;
412 	dma_addr_t pdma_addr;
413 	uint32_t offset;
414 	uint32_t iocbCnt;
415 	int i;
416 
417 	pcbp->maxRing = (psli->num_rings - 1);
418 
419 	iocbCnt = 0;
420 	for (i = 0; i < psli->num_rings; i++) {
421 		pring = &psli->ring[i];
422 		/* A ring MUST have both cmd and rsp entries defined to be
423 		   valid */
424 		if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
425 			pcbp->rdsc[i].cmdEntries = 0;
426 			pcbp->rdsc[i].rspEntries = 0;
427 			pcbp->rdsc[i].cmdAddrHigh = 0;
428 			pcbp->rdsc[i].rspAddrHigh = 0;
429 			pcbp->rdsc[i].cmdAddrLow = 0;
430 			pcbp->rdsc[i].rspAddrLow = 0;
431 			pring->cmdringaddr = NULL;
432 			pring->rspringaddr = NULL;
433 			continue;
434 		}
435 		/* Command ring setup for ring */
436 		pring->cmdringaddr =
437 		    (void *)&phba->slim2p->IOCBs[iocbCnt];
438 		pcbp->rdsc[i].cmdEntries = pring->numCiocb;
439 
440 		offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
441 			 (uint8_t *)phba->slim2p;
442 		pdma_addr = phba->slim2p_mapping + offset;
443 		pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
444 		pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
445 		iocbCnt += pring->numCiocb;
446 
447 		/* Response ring setup for ring */
448 		pring->rspringaddr =
449 		    (void *)&phba->slim2p->IOCBs[iocbCnt];
450 
451 		pcbp->rdsc[i].rspEntries = pring->numRiocb;
452 		offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
453 			 (uint8_t *)phba->slim2p;
454 		pdma_addr = phba->slim2p_mapping + offset;
455 		pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
456 		pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
457 		iocbCnt += pring->numRiocb;
458 	}
459 }
460 
461 void
462 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
463 {
464 	MAILBOX_t *mb;
465 
466 	mb = &pmb->mb;
467 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
468 	mb->un.varRdRev.cv = 1;
469 	mb->mbxCommand = MBX_READ_REV;
470 	mb->mbxOwner = OWN_HOST;
471 	return;
472 }
473 
474 void
475 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
476 {
477 	int i;
478 	MAILBOX_t *mb = &pmb->mb;
479 	struct lpfc_sli *psli;
480 	struct lpfc_sli_ring *pring;
481 
482 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
483 
484 	mb->un.varCfgRing.ring = ring;
485 	mb->un.varCfgRing.maxOrigXchg = 0;
486 	mb->un.varCfgRing.maxRespXchg = 0;
487 	mb->un.varCfgRing.recvNotify = 1;
488 
489 	psli = &phba->sli;
490 	pring = &psli->ring[ring];
491 	mb->un.varCfgRing.numMask = pring->num_mask;
492 	mb->mbxCommand = MBX_CONFIG_RING;
493 	mb->mbxOwner = OWN_HOST;
494 
495 	/* Is this ring configured for a specific profile */
496 	if (pring->prt[0].profile) {
497 		mb->un.varCfgRing.profile = pring->prt[0].profile;
498 		return;
499 	}
500 
501 	/* Otherwise we setup specific rctl / type masks for this ring */
502 	for (i = 0; i < pring->num_mask; i++) {
503 		mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
504 		if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ)
505 			mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
506 		else
507 			mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
508 		mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
509 		mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
510 	}
511 
512 	return;
513 }
514 
515 void
516 lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
517 {
518 	MAILBOX_t *mb = &pmb->mb;
519 	dma_addr_t pdma_addr;
520 	uint32_t bar_low, bar_high;
521 	size_t offset;
522 	struct lpfc_hgp hgp;
523 	void __iomem *to_slim;
524 	int i;
525 
526 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
527 	mb->mbxCommand = MBX_CONFIG_PORT;
528 	mb->mbxOwner = OWN_HOST;
529 
530 	mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
531 
532 	offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p;
533 	pdma_addr = phba->slim2p_mapping + offset;
534 	mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
535 	mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
536 
537 	/* Now setup pcb */
538 	phba->slim2p->pcb.type = TYPE_NATIVE_SLI2;
539 	phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2;
540 
541 	/* Setup Mailbox pointers */
542 	phba->slim2p->pcb.mailBoxSize = sizeof(MAILBOX_t);
543 	offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p;
544 	pdma_addr = phba->slim2p_mapping + offset;
545 	phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr);
546 	phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr);
547 
548 	/*
549 	 * Setup Host Group ring pointer.
550 	 *
551 	 * For efficiency reasons, the ring get/put pointers can be
552 	 * placed in adapter memory (SLIM) rather than in host memory.
553 	 * This allows firmware to avoid PCI reads/writes when updating
554 	 * and checking pointers.
555 	 *
556 	 * The firmware recognizes the use of SLIM memory by comparing
557 	 * the address of the get/put pointers structure with that of
558 	 * the SLIM BAR (BAR0).
559 	 *
560 	 * Caution: be sure to use the PCI config space value of BAR0/BAR1
561 	 * (the hardware's view of the base address), not the OS's
562 	 * value of pci_resource_start() as the OS value may be a cookie
563 	 * for ioremap/iomap.
564 	 */
565 
566 
567 	pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
568 	pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
569 
570 
571 	/* mask off BAR0's flag bits 0 - 3 */
572 	phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
573 					(SLIMOFF*sizeof(uint32_t));
574 	if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
575 		phba->slim2p->pcb.hgpAddrHigh = bar_high;
576 	else
577 		phba->slim2p->pcb.hgpAddrHigh = 0;
578 	/* write HGP data to SLIM at the required longword offset */
579 	memset(&hgp, 0, sizeof(struct lpfc_hgp));
580 	to_slim = phba->MBslimaddr + (SLIMOFF*sizeof (uint32_t));
581 
582 	for (i=0; i < phba->sli.num_rings; i++) {
583 		lpfc_memcpy_to_slim(to_slim, &hgp, sizeof(struct lpfc_hgp));
584 		to_slim += sizeof (struct lpfc_hgp);
585 	}
586 
587 	/* Setup Port Group ring pointer */
588 	offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
589 		 (uint8_t *)phba->slim2p;
590 	pdma_addr = phba->slim2p_mapping + offset;
591 	phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr);
592 	phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr);
593 
594 	/* Use callback routine to setp rings in the pcb */
595 	lpfc_config_pcb_setup(phba);
596 
597 	/* special handling for LC HBAs */
598 	if (lpfc_is_LC_HBA(phba->pcidev->device)) {
599 		uint32_t hbainit[5];
600 
601 		lpfc_hba_init(phba, hbainit);
602 
603 		memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
604 	}
605 
606 	/* Swap PCB if needed */
607 	lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb,
608 								sizeof (PCB_t));
609 
610 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
611 		        "%d:0405 Service Level Interface (SLI) 2 selected\n",
612 		        phba->brd_no);
613 }
614 
615 void
616 lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
617 {
618 	MAILBOX_t *mb = &pmb->mb;
619 
620 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
621 	mb->mbxCommand = MBX_KILL_BOARD;
622 	mb->mbxOwner = OWN_HOST;
623 	return;
624 }
625 
626 void
627 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
628 {
629 	struct lpfc_sli *psli;
630 
631 	psli = &phba->sli;
632 
633 	list_add_tail(&mbq->list, &psli->mboxq);
634 
635 	psli->mboxq_cnt++;
636 
637 	return;
638 }
639 
640 LPFC_MBOXQ_t *
641 lpfc_mbox_get(struct lpfc_hba * phba)
642 {
643 	LPFC_MBOXQ_t *mbq = NULL;
644 	struct lpfc_sli *psli = &phba->sli;
645 
646 	list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t,
647 			 list);
648 	if (mbq) {
649 		psli->mboxq_cnt--;
650 	}
651 
652 	return mbq;
653 }
654 
655 int
656 lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
657 {
658 	switch (cmd) {
659 	case MBX_WRITE_NV:	/* 0x03 */
660 	case MBX_UPDATE_CFG:	/* 0x1B */
661 	case MBX_DOWN_LOAD:	/* 0x1C */
662 	case MBX_DEL_LD_ENTRY:	/* 0x1D */
663 	case MBX_LOAD_AREA:	/* 0x81 */
664 	case MBX_FLASH_WR_ULA:  /* 0x98 */
665 	case MBX_LOAD_EXP_ROM:	/* 0x9C */
666 		return LPFC_MBOX_TMO_FLASH_CMD;
667 	}
668 	return LPFC_MBOX_TMO;
669 }
670