xref: /openbmc/linux/drivers/scsi/lpfc/lpfc_mbox.c (revision 20e2fc42)
1 /*******************************************************************
2  * This file is part of the Emulex Linux Device Driver for         *
3  * Fibre Channel Host Bus Adapters.                                *
4  * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
7  * EMULEX and SLI are trademarks of Emulex.                        *
8  * www.broadcom.com                                                *
9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
10  *                                                                 *
11  * This program is free software; you can redistribute it and/or   *
12  * modify it under the terms of version 2 of the GNU General       *
13  * Public License as published by the Free Software Foundation.    *
14  * This program is distributed in the hope that it will be useful. *
15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
20  * more details, a copy of which can be found in the file COPYING  *
21  * included with this package.                                     *
22  *******************************************************************/
23 
24 #include <linux/blkdev.h>
25 #include <linux/pci.h>
26 #include <linux/slab.h>
27 #include <linux/interrupt.h>
28 
29 #include <scsi/scsi_device.h>
30 #include <scsi/scsi_transport_fc.h>
31 #include <scsi/scsi.h>
32 #include <scsi/fc/fc_fs.h>
33 
34 #include "lpfc_hw4.h"
35 #include "lpfc_hw.h"
36 #include "lpfc_sli.h"
37 #include "lpfc_sli4.h"
38 #include "lpfc_nl.h"
39 #include "lpfc_disc.h"
40 #include "lpfc_scsi.h"
41 #include "lpfc.h"
42 #include "lpfc_logmsg.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_compat.h"
45 
46 /**
47  * lpfc_dump_static_vport - Dump HBA's static vport information.
48  * @phba: pointer to lpfc hba data structure.
49  * @pmb: pointer to the driver internal queue element for mailbox command.
50  * @offset: offset for dumping vport info.
51  *
52  * The dump mailbox command provides a method for the device driver to obtain
53  * various types of information from the HBA device.
54  *
55  * This routine prepares the mailbox command for dumping list of static
56  * vports to be created.
57  **/
58 int
59 lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
60 		uint16_t offset)
61 {
62 	MAILBOX_t *mb;
63 	struct lpfc_dmabuf *mp;
64 
65 	mb = &pmb->u.mb;
66 
67 	/* Setup to dump vport info region */
68 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
69 	mb->mbxCommand = MBX_DUMP_MEMORY;
70 	mb->un.varDmp.type = DMP_NV_PARAMS;
71 	mb->un.varDmp.entry_index = offset;
72 	mb->un.varDmp.region_id = DMP_REGION_VPORT;
73 	mb->mbxOwner = OWN_HOST;
74 
75 	/* For SLI3 HBAs data is embedded in mailbox */
76 	if (phba->sli_rev != LPFC_SLI_REV4) {
77 		mb->un.varDmp.cv = 1;
78 		mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t);
79 		return 0;
80 	}
81 
82 	/* For SLI4 HBAs driver need to allocate memory */
83 	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
84 	if (mp)
85 		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
86 
87 	if (!mp || !mp->virt) {
88 		kfree(mp);
89 		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
90 			"2605 lpfc_dump_static_vport: memory"
91 			" allocation failed\n");
92 		return 1;
93 	}
94 	memset(mp->virt, 0, LPFC_BPL_SIZE);
95 	INIT_LIST_HEAD(&mp->list);
96 	/* save address for completion */
97 	pmb->ctx_buf = (uint8_t *)mp;
98 	mb->un.varWords[3] = putPaddrLow(mp->phys);
99 	mb->un.varWords[4] = putPaddrHigh(mp->phys);
100 	mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);
101 
102 	return 0;
103 }
104 
105 /**
106  * lpfc_down_link - Bring down HBAs link.
107  * @phba: pointer to lpfc hba data structure.
108  * @pmb: pointer to the driver internal queue element for mailbox command.
109  *
110  * This routine prepares a mailbox command to bring down HBA link.
111  **/
112 void
113 lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
114 {
115 	MAILBOX_t *mb;
116 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
117 	mb = &pmb->u.mb;
118 	mb->mbxCommand = MBX_DOWN_LINK;
119 	mb->mbxOwner = OWN_HOST;
120 }
121 
122 /**
123  * lpfc_dump_mem - Prepare a mailbox command for reading a region.
124  * @phba: pointer to lpfc hba data structure.
125  * @pmb: pointer to the driver internal queue element for mailbox command.
126  * @offset: offset into the region.
127  * @region_id: config region id.
128  *
129  * The dump mailbox command provides a method for the device driver to obtain
130  * various types of information from the HBA device.
131  *
132  * This routine prepares the mailbox command for dumping HBA's config region.
133  **/
134 void
135 lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
136 		uint16_t region_id)
137 {
138 	MAILBOX_t *mb;
139 	void *ctx;
140 
141 	mb = &pmb->u.mb;
142 	ctx = pmb->ctx_buf;
143 
144 	/* Setup to dump VPD region */
145 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
146 	mb->mbxCommand = MBX_DUMP_MEMORY;
147 	mb->un.varDmp.cv = 1;
148 	mb->un.varDmp.type = DMP_NV_PARAMS;
149 	mb->un.varDmp.entry_index = offset;
150 	mb->un.varDmp.region_id = region_id;
151 	mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
152 	mb->un.varDmp.co = 0;
153 	mb->un.varDmp.resp_offset = 0;
154 	pmb->ctx_buf = ctx;
155 	mb->mbxOwner = OWN_HOST;
156 	return;
157 }
158 
159 /**
160  * lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params
161  * @phba: pointer to lpfc hba data structure.
162  * @pmb: pointer to the driver internal queue element for mailbox command.
163  *
164  * This function create a dump memory mailbox command to dump wake up
165  * parameters.
166  */
167 void
168 lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
169 {
170 	MAILBOX_t *mb;
171 	void *ctx;
172 
173 	mb = &pmb->u.mb;
174 	/* Save context so that we can restore after memset */
175 	ctx = pmb->ctx_buf;
176 
177 	/* Setup to dump VPD region */
178 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
179 	mb->mbxCommand = MBX_DUMP_MEMORY;
180 	mb->mbxOwner = OWN_HOST;
181 	mb->un.varDmp.cv = 1;
182 	mb->un.varDmp.type = DMP_NV_PARAMS;
183 	if (phba->sli_rev < LPFC_SLI_REV4)
184 		mb->un.varDmp.entry_index = 0;
185 	mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
186 	mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
187 	mb->un.varDmp.co = 0;
188 	mb->un.varDmp.resp_offset = 0;
189 	pmb->ctx_buf = ctx;
190 	return;
191 }
192 
193 /**
194  * lpfc_read_nv - Prepare a mailbox command for reading HBA's NVRAM param
195  * @phba: pointer to lpfc hba data structure.
196  * @pmb: pointer to the driver internal queue element for mailbox command.
197  *
198  * The read NVRAM mailbox command returns the HBA's non-volatile parameters
199  * that are used as defaults when the Fibre Channel link is brought on-line.
200  *
201  * This routine prepares the mailbox command for reading information stored
202  * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
203  **/
204 void
205 lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
206 {
207 	MAILBOX_t *mb;
208 
209 	mb = &pmb->u.mb;
210 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
211 	mb->mbxCommand = MBX_READ_NV;
212 	mb->mbxOwner = OWN_HOST;
213 	return;
214 }
215 
216 /**
217  * lpfc_config_async - Prepare a mailbox command for enabling HBA async event
218  * @phba: pointer to lpfc hba data structure.
219  * @pmb: pointer to the driver internal queue element for mailbox command.
220  * @ring: ring number for the asynchronous event to be configured.
221  *
222  * The asynchronous event enable mailbox command is used to enable the
223  * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
224  * specifies the default ring to which events are posted.
225  *
226  * This routine prepares the mailbox command for enabling HBA asynchronous
227  * event support on a IOCB ring.
228  **/
229 void
230 lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
231 		uint32_t ring)
232 {
233 	MAILBOX_t *mb;
234 
235 	mb = &pmb->u.mb;
236 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
237 	mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
238 	mb->un.varCfgAsyncEvent.ring = ring;
239 	mb->mbxOwner = OWN_HOST;
240 	return;
241 }
242 
243 /**
244  * lpfc_heart_beat - Prepare a mailbox command for heart beat
245  * @phba: pointer to lpfc hba data structure.
246  * @pmb: pointer to the driver internal queue element for mailbox command.
247  *
248  * The heart beat mailbox command is used to detect an unresponsive HBA, which
249  * is defined as any device where no error attention is sent and both mailbox
250  * and rings are not processed.
251  *
252  * This routine prepares the mailbox command for issuing a heart beat in the
253  * form of mailbox command to the HBA. The timely completion of the heart
254  * beat mailbox command indicates the health of the HBA.
255  **/
256 void
257 lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
258 {
259 	MAILBOX_t *mb;
260 
261 	mb = &pmb->u.mb;
262 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
263 	mb->mbxCommand = MBX_HEARTBEAT;
264 	mb->mbxOwner = OWN_HOST;
265 	return;
266 }
267 
268 /**
269  * lpfc_read_topology - Prepare a mailbox command for reading HBA topology
270  * @phba: pointer to lpfc hba data structure.
271  * @pmb: pointer to the driver internal queue element for mailbox command.
272  * @mp: DMA buffer memory for reading the link attention information into.
273  *
274  * The read topology mailbox command is issued to read the link topology
275  * information indicated by the HBA port when the Link Event bit of the Host
276  * Attention (HSTATT) register is set to 1 (For SLI-3) or when an FC Link
277  * Attention ACQE is received from the port (For SLI-4). A Link Event
278  * Attention occurs based on an exception detected at the Fibre Channel link
279  * interface.
280  *
281  * This routine prepares the mailbox command for reading HBA link topology
282  * information. A DMA memory has been set aside and address passed to the
283  * HBA through @mp for the HBA to DMA link attention information into the
284  * memory as part of the execution of the mailbox command.
285  *
286  * Return codes
287  *    0 - Success (currently always return 0)
288  **/
289 int
290 lpfc_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
291 		   struct lpfc_dmabuf *mp)
292 {
293 	MAILBOX_t *mb;
294 
295 	mb = &pmb->u.mb;
296 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
297 
298 	INIT_LIST_HEAD(&mp->list);
299 	mb->mbxCommand = MBX_READ_TOPOLOGY;
300 	mb->un.varReadTop.lilpBde64.tus.f.bdeSize = LPFC_ALPA_MAP_SIZE;
301 	mb->un.varReadTop.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
302 	mb->un.varReadTop.lilpBde64.addrLow = putPaddrLow(mp->phys);
303 
304 	/* Save address for later completion and set the owner to host so that
305 	 * the FW knows this mailbox is available for processing.
306 	 */
307 	pmb->ctx_buf = (uint8_t *)mp;
308 	mb->mbxOwner = OWN_HOST;
309 	return (0);
310 }
311 
312 /**
313  * lpfc_clear_la - Prepare a mailbox command for clearing HBA link attention
314  * @phba: pointer to lpfc hba data structure.
315  * @pmb: pointer to the driver internal queue element for mailbox command.
316  *
317  * The clear link attention mailbox command is issued to clear the link event
318  * attention condition indicated by the Link Event bit of the Host Attention
319  * (HSTATT) register. The link event attention condition is cleared only if
320  * the event tag specified matches that of the current link event counter.
321  * The current event tag is read using the read link attention event mailbox
322  * command.
323  *
324  * This routine prepares the mailbox command for clearing HBA link attention
325  * information.
326  **/
327 void
328 lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
329 {
330 	MAILBOX_t *mb;
331 
332 	mb = &pmb->u.mb;
333 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
334 
335 	mb->un.varClearLA.eventTag = phba->fc_eventTag;
336 	mb->mbxCommand = MBX_CLEAR_LA;
337 	mb->mbxOwner = OWN_HOST;
338 	return;
339 }
340 
341 /**
342  * lpfc_config_link - Prepare a mailbox command for configuring link on a HBA
343  * @phba: pointer to lpfc hba data structure.
344  * @pmb: pointer to the driver internal queue element for mailbox command.
345  *
346  * The configure link mailbox command is used before the initialize link
347  * mailbox command to override default value and to configure link-oriented
348  * parameters such as DID address and various timers. Typically, this
349  * command would be used after an F_Port login to set the returned DID address
350  * and the fabric timeout values. This command is not valid before a configure
351  * port command has configured the HBA port.
352  *
353  * This routine prepares the mailbox command for configuring link on a HBA.
354  **/
355 void
356 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
357 {
358 	struct lpfc_vport  *vport = phba->pport;
359 	MAILBOX_t *mb = &pmb->u.mb;
360 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
361 
362 	/* NEW_FEATURE
363 	 * SLI-2, Coalescing Response Feature.
364 	 */
365 	if (phba->cfg_cr_delay && (phba->sli_rev < LPFC_SLI_REV4)) {
366 		mb->un.varCfgLnk.cr = 1;
367 		mb->un.varCfgLnk.ci = 1;
368 		mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
369 		mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
370 	}
371 
372 	mb->un.varCfgLnk.myId = vport->fc_myDID;
373 	mb->un.varCfgLnk.edtov = phba->fc_edtov;
374 	mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
375 	mb->un.varCfgLnk.ratov = phba->fc_ratov;
376 	mb->un.varCfgLnk.rttov = phba->fc_rttov;
377 	mb->un.varCfgLnk.altov = phba->fc_altov;
378 	mb->un.varCfgLnk.crtov = phba->fc_crtov;
379 	mb->un.varCfgLnk.cscn = 0;
380 	if (phba->bbcredit_support && phba->cfg_enable_bbcr) {
381 		mb->un.varCfgLnk.cscn = 1;
382 		mb->un.varCfgLnk.bbscn = bf_get(lpfc_bbscn_def,
383 						 &phba->sli4_hba.bbscn_params);
384 	}
385 
386 	if (phba->cfg_ack0 && (phba->sli_rev < LPFC_SLI_REV4))
387 		mb->un.varCfgLnk.ack0_enable = 1;
388 
389 	mb->mbxCommand = MBX_CONFIG_LINK;
390 	mb->mbxOwner = OWN_HOST;
391 	return;
392 }
393 
394 /**
395  * lpfc_config_msi - Prepare a mailbox command for configuring msi-x
396  * @phba: pointer to lpfc hba data structure.
397  * @pmb: pointer to the driver internal queue element for mailbox command.
398  *
399  * The configure MSI-X mailbox command is used to configure the HBA's SLI-3
400  * MSI-X multi-message interrupt vector association to interrupt attention
401  * conditions.
402  *
403  * Return codes
404  *    0 - Success
405  *    -EINVAL - Failure
406  **/
407 int
408 lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
409 {
410 	MAILBOX_t *mb = &pmb->u.mb;
411 	uint32_t attentionConditions[2];
412 
413 	/* Sanity check */
414 	if (phba->cfg_use_msi != 2) {
415 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
416 				"0475 Not configured for supporting MSI-X "
417 				"cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
418 		return -EINVAL;
419 	}
420 
421 	if (phba->sli_rev < 3) {
422 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
423 				"0476 HBA not supporting SLI-3 or later "
424 				"SLI Revision: 0x%x\n", phba->sli_rev);
425 		return -EINVAL;
426 	}
427 
428 	/* Clear mailbox command fields */
429 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
430 
431 	/*
432 	 * SLI-3, Message Signaled Interrupt Fearure.
433 	 */
434 
435 	/* Multi-message attention configuration */
436 	attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
437 				  HA_LATT | HA_MBATT);
438 	attentionConditions[1] = 0;
439 
440 	mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
441 	mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
442 
443 	/*
444 	 * Set up message number to HA bit association
445 	 */
446 #ifdef __BIG_ENDIAN_BITFIELD
447 	/* RA0 (FCP Ring) */
448 	mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
449 	/* RA1 (Other Protocol Extra Ring) */
450 	mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
451 #else   /*  __LITTLE_ENDIAN_BITFIELD */
452 	/* RA0 (FCP Ring) */
453 	mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
454 	/* RA1 (Other Protocol Extra Ring) */
455 	mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
456 #endif
457 	/* Multi-message interrupt autoclear configuration*/
458 	mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
459 	mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
460 
461 	/* For now, HBA autoclear does not work reliably, disable it */
462 	mb->un.varCfgMSI.autoClearHA[0] = 0;
463 	mb->un.varCfgMSI.autoClearHA[1] = 0;
464 
465 	/* Set command and owner bit */
466 	mb->mbxCommand = MBX_CONFIG_MSI;
467 	mb->mbxOwner = OWN_HOST;
468 
469 	return 0;
470 }
471 
472 /**
473  * lpfc_init_link - Prepare a mailbox command for initialize link on a HBA
474  * @phba: pointer to lpfc hba data structure.
475  * @pmb: pointer to the driver internal queue element for mailbox command.
476  * @topology: the link topology for the link to be initialized to.
477  * @linkspeed: the link speed for the link to be initialized to.
478  *
479  * The initialize link mailbox command is used to initialize the Fibre
480  * Channel link. This command must follow a configure port command that
481  * establishes the mode of operation.
482  *
483  * This routine prepares the mailbox command for initializing link on a HBA
484  * with the specified link topology and speed.
485  **/
486 void
487 lpfc_init_link(struct lpfc_hba * phba,
488 	       LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
489 {
490 	lpfc_vpd_t *vpd;
491 	MAILBOX_t *mb;
492 
493 	mb = &pmb->u.mb;
494 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
495 
496 	switch (topology) {
497 	case FLAGS_TOPOLOGY_MODE_LOOP_PT:
498 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
499 		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
500 		break;
501 	case FLAGS_TOPOLOGY_MODE_PT_PT:
502 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
503 		break;
504 	case FLAGS_TOPOLOGY_MODE_LOOP:
505 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
506 		break;
507 	case FLAGS_TOPOLOGY_MODE_PT_LOOP:
508 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
509 		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
510 		break;
511 	case FLAGS_LOCAL_LB:
512 		mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
513 		break;
514 	}
515 
516 	if ((phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC ||
517 	     phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC) &&
518 	    mb->un.varInitLnk.link_flags & FLAGS_TOPOLOGY_MODE_LOOP) {
519 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
520 		phba->cfg_topology = FLAGS_TOPOLOGY_MODE_PT_PT;
521 	}
522 
523 	/* Enable asynchronous ABTS responses from firmware */
524 	mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
525 
526 	/* NEW_FEATURE
527 	 * Setting up the link speed
528 	 */
529 	vpd = &phba->vpd;
530 	if (vpd->rev.feaLevelHigh >= 0x02){
531 		switch(linkspeed){
532 		case LPFC_USER_LINK_SPEED_1G:
533 			mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
534 			mb->un.varInitLnk.link_speed = LINK_SPEED_1G;
535 			break;
536 		case LPFC_USER_LINK_SPEED_2G:
537 			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
538 			mb->un.varInitLnk.link_speed = LINK_SPEED_2G;
539 			break;
540 		case LPFC_USER_LINK_SPEED_4G:
541 			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
542 			mb->un.varInitLnk.link_speed = LINK_SPEED_4G;
543 			break;
544 		case LPFC_USER_LINK_SPEED_8G:
545 			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
546 			mb->un.varInitLnk.link_speed = LINK_SPEED_8G;
547 			break;
548 		case LPFC_USER_LINK_SPEED_10G:
549 			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
550 			mb->un.varInitLnk.link_speed = LINK_SPEED_10G;
551 			break;
552 		case LPFC_USER_LINK_SPEED_16G:
553 			mb->un.varInitLnk.link_flags |=	FLAGS_LINK_SPEED;
554 			mb->un.varInitLnk.link_speed = LINK_SPEED_16G;
555 			break;
556 		case LPFC_USER_LINK_SPEED_32G:
557 			mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
558 			mb->un.varInitLnk.link_speed = LINK_SPEED_32G;
559 			break;
560 		case LPFC_USER_LINK_SPEED_64G:
561 			mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
562 			mb->un.varInitLnk.link_speed = LINK_SPEED_64G;
563 			break;
564 		case LPFC_USER_LINK_SPEED_AUTO:
565 		default:
566 			mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
567 			break;
568 		}
569 
570 	}
571 	else
572 		mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
573 
574 	mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
575 	mb->mbxOwner = OWN_HOST;
576 	mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
577 	return;
578 }
579 
580 /**
581  * lpfc_read_sparam - Prepare a mailbox command for reading HBA parameters
582  * @phba: pointer to lpfc hba data structure.
583  * @pmb: pointer to the driver internal queue element for mailbox command.
584  * @vpi: virtual N_Port identifier.
585  *
586  * The read service parameter mailbox command is used to read the HBA port
587  * service parameters. The service parameters are read into the buffer
588  * specified directly by a BDE in the mailbox command. These service
589  * parameters may then be used to build the payload of an N_Port/F_POrt
590  * login request and reply (LOGI/ACC).
591  *
592  * This routine prepares the mailbox command for reading HBA port service
593  * parameters. The DMA memory is allocated in this function and the addresses
594  * are populated into the mailbox command for the HBA to DMA the service
595  * parameters into.
596  *
597  * Return codes
598  *    0 - Success
599  *    1 - DMA memory allocation failed
600  **/
601 int
602 lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
603 {
604 	struct lpfc_dmabuf *mp;
605 	MAILBOX_t *mb;
606 
607 	mb = &pmb->u.mb;
608 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
609 
610 	mb->mbxOwner = OWN_HOST;
611 
612 	/* Get a buffer to hold the HBAs Service Parameters */
613 
614 	mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
615 	if (mp)
616 		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
617 	if (!mp || !mp->virt) {
618 		kfree(mp);
619 		mb->mbxCommand = MBX_READ_SPARM64;
620 		/* READ_SPARAM: no buffers */
621 		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
622 			        "0301 READ_SPARAM: no buffers\n");
623 		return (1);
624 	}
625 	INIT_LIST_HEAD(&mp->list);
626 	mb->mbxCommand = MBX_READ_SPARM64;
627 	mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
628 	mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
629 	mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
630 	if (phba->sli_rev >= LPFC_SLI_REV3)
631 		mb->un.varRdSparm.vpi = phba->vpi_ids[vpi];
632 
633 	/* save address for completion */
634 	pmb->ctx_buf = mp;
635 
636 	return (0);
637 }
638 
639 /**
640  * lpfc_unreg_did - Prepare a mailbox command for unregistering DID
641  * @phba: pointer to lpfc hba data structure.
642  * @vpi: virtual N_Port identifier.
643  * @did: remote port identifier.
644  * @pmb: pointer to the driver internal queue element for mailbox command.
645  *
646  * The unregister DID mailbox command is used to unregister an N_Port/F_Port
647  * login for an unknown RPI by specifying the DID of a remote port. This
648  * command frees an RPI context in the HBA port. This has the effect of
649  * performing an implicit N_Port/F_Port logout.
650  *
651  * This routine prepares the mailbox command for unregistering a remote
652  * N_Port/F_Port (DID) login.
653  **/
654 void
655 lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
656 	       LPFC_MBOXQ_t * pmb)
657 {
658 	MAILBOX_t *mb;
659 
660 	mb = &pmb->u.mb;
661 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
662 
663 	mb->un.varUnregDID.did = did;
664 	mb->un.varUnregDID.vpi = vpi;
665 	if ((vpi != 0xffff) &&
666 	    (phba->sli_rev == LPFC_SLI_REV4))
667 		mb->un.varUnregDID.vpi = phba->vpi_ids[vpi];
668 
669 	mb->mbxCommand = MBX_UNREG_D_ID;
670 	mb->mbxOwner = OWN_HOST;
671 	return;
672 }
673 
674 /**
675  * lpfc_read_config - Prepare a mailbox command for reading HBA configuration
676  * @phba: pointer to lpfc hba data structure.
677  * @pmb: pointer to the driver internal queue element for mailbox command.
678  *
679  * The read configuration mailbox command is used to read the HBA port
680  * configuration parameters. This mailbox command provides a method for
681  * seeing any parameters that may have changed via various configuration
682  * mailbox commands.
683  *
684  * This routine prepares the mailbox command for reading out HBA configuration
685  * parameters.
686  **/
687 void
688 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
689 {
690 	MAILBOX_t *mb;
691 
692 	mb = &pmb->u.mb;
693 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
694 
695 	mb->mbxCommand = MBX_READ_CONFIG;
696 	mb->mbxOwner = OWN_HOST;
697 	return;
698 }
699 
700 /**
701  * lpfc_read_lnk_stat - Prepare a mailbox command for reading HBA link stats
702  * @phba: pointer to lpfc hba data structure.
703  * @pmb: pointer to the driver internal queue element for mailbox command.
704  *
705  * The read link status mailbox command is used to read the link status from
706  * the HBA. Link status includes all link-related error counters. These
707  * counters are maintained by the HBA and originated in the link hardware
708  * unit. Note that all of these counters wrap.
709  *
710  * This routine prepares the mailbox command for reading out HBA link status.
711  **/
712 void
713 lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
714 {
715 	MAILBOX_t *mb;
716 
717 	mb = &pmb->u.mb;
718 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
719 
720 	mb->mbxCommand = MBX_READ_LNK_STAT;
721 	mb->mbxOwner = OWN_HOST;
722 	return;
723 }
724 
725 /**
726  * lpfc_reg_rpi - Prepare a mailbox command for registering remote login
727  * @phba: pointer to lpfc hba data structure.
728  * @vpi: virtual N_Port identifier.
729  * @did: remote port identifier.
730  * @param: pointer to memory holding the server parameters.
731  * @pmb: pointer to the driver internal queue element for mailbox command.
732  * @rpi: the rpi to use in the registration (usually only used for SLI4.
733  *
734  * The registration login mailbox command is used to register an N_Port or
735  * F_Port login. This registration allows the HBA to cache the remote N_Port
736  * service parameters internally and thereby make the appropriate FC-2
737  * decisions. The remote port service parameters are handed off by the driver
738  * to the HBA using a descriptor entry that directly identifies a buffer in
739  * host memory. In exchange, the HBA returns an RPI identifier.
740  *
741  * This routine prepares the mailbox command for registering remote port login.
742  * The function allocates DMA buffer for passing the service parameters to the
743  * HBA with the mailbox command.
744  *
745  * Return codes
746  *    0 - Success
747  *    1 - DMA memory allocation failed
748  **/
749 int
750 lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
751 	     uint8_t *param, LPFC_MBOXQ_t *pmb, uint16_t rpi)
752 {
753 	MAILBOX_t *mb = &pmb->u.mb;
754 	uint8_t *sparam;
755 	struct lpfc_dmabuf *mp;
756 
757 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
758 
759 	mb->un.varRegLogin.rpi = 0;
760 	if (phba->sli_rev == LPFC_SLI_REV4)
761 		mb->un.varRegLogin.rpi = phba->sli4_hba.rpi_ids[rpi];
762 	if (phba->sli_rev >= LPFC_SLI_REV3)
763 		mb->un.varRegLogin.vpi = phba->vpi_ids[vpi];
764 	mb->un.varRegLogin.did = did;
765 	mb->mbxOwner = OWN_HOST;
766 	/* Get a buffer to hold NPorts Service Parameters */
767 	mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
768 	if (mp)
769 		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
770 	if (!mp || !mp->virt) {
771 		kfree(mp);
772 		mb->mbxCommand = MBX_REG_LOGIN64;
773 		/* REG_LOGIN: no buffers */
774 		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
775 				"0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
776 				"rpi x%x\n", vpi, did, rpi);
777 		return 1;
778 	}
779 	INIT_LIST_HEAD(&mp->list);
780 	sparam = mp->virt;
781 
782 	/* Copy param's into a new buffer */
783 	memcpy(sparam, param, sizeof (struct serv_parm));
784 
785 	/* save address for completion */
786 	pmb->ctx_buf = (uint8_t *)mp;
787 
788 	mb->mbxCommand = MBX_REG_LOGIN64;
789 	mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
790 	mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
791 	mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
792 
793 	return 0;
794 }
795 
796 /**
797  * lpfc_unreg_login - Prepare a mailbox command for unregistering remote login
798  * @phba: pointer to lpfc hba data structure.
799  * @vpi: virtual N_Port identifier.
800  * @rpi: remote port identifier
801  * @pmb: pointer to the driver internal queue element for mailbox command.
802  *
803  * The unregistration login mailbox command is used to unregister an N_Port
804  * or F_Port login. This command frees an RPI context in the HBA. It has the
805  * effect of performing an implicit N_Port/F_Port logout.
806  *
807  * This routine prepares the mailbox command for unregistering remote port
808  * login.
809  *
810  * For SLI4 ports, the rpi passed to this function must be the physical
811  * rpi value, not the logical index.
812  **/
813 void
814 lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
815 		 LPFC_MBOXQ_t * pmb)
816 {
817 	MAILBOX_t *mb;
818 
819 	mb = &pmb->u.mb;
820 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
821 
822 	mb->un.varUnregLogin.rpi = rpi;
823 	mb->un.varUnregLogin.rsvd1 = 0;
824 	if (phba->sli_rev >= LPFC_SLI_REV3)
825 		mb->un.varUnregLogin.vpi = phba->vpi_ids[vpi];
826 
827 	mb->mbxCommand = MBX_UNREG_LOGIN;
828 	mb->mbxOwner = OWN_HOST;
829 
830 	return;
831 }
832 
833 /**
834  * lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA.
835  * @vport: pointer to a vport object.
836  *
837  * This routine sends mailbox command to unregister all active RPIs for
838  * a vport.
839  **/
840 void
841 lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
842 {
843 	struct lpfc_hba  *phba  = vport->phba;
844 	LPFC_MBOXQ_t     *mbox;
845 	int rc;
846 
847 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
848 	if (mbox) {
849 		/*
850 		 * For SLI4 functions, the rpi field is overloaded for
851 		 * the vport context unreg all.  This routine passes
852 		 * 0 for the rpi field in lpfc_unreg_login for compatibility
853 		 * with SLI3 and then overrides the rpi field with the
854 		 * expected value for SLI4.
855 		 */
856 		lpfc_unreg_login(phba, vport->vpi, phba->vpi_ids[vport->vpi],
857 				 mbox);
858 		mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000;
859 		mbox->vport = vport;
860 		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
861 		mbox->ctx_ndlp = NULL;
862 		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
863 		if (rc == MBX_NOT_FINISHED)
864 			mempool_free(mbox, phba->mbox_mem_pool);
865 	}
866 }
867 
868 /**
869  * lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier
870  * @phba: pointer to lpfc hba data structure.
871  * @vpi: virtual N_Port identifier.
872  * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port).
873  * @pmb: pointer to the driver internal queue element for mailbox command.
874  *
875  * The registration vport identifier mailbox command is used to activate a
876  * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
877  * N_Port_ID against the information in the selected virtual N_Port context
878  * block and marks it active to allow normal processing of IOCB commands and
879  * received unsolicited exchanges.
880  *
881  * This routine prepares the mailbox command for registering a virtual N_Port.
882  **/
883 void
884 lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
885 {
886 	MAILBOX_t *mb = &pmb->u.mb;
887 	struct lpfc_hba *phba = vport->phba;
888 
889 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
890 	/*
891 	 * Set the re-reg VPI bit for f/w to update the MAC address.
892 	 */
893 	if ((phba->sli_rev == LPFC_SLI_REV4) &&
894 		!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI))
895 		mb->un.varRegVpi.upd = 1;
896 
897 	mb->un.varRegVpi.vpi = phba->vpi_ids[vport->vpi];
898 	mb->un.varRegVpi.sid = vport->fc_myDID;
899 	if (phba->sli_rev == LPFC_SLI_REV4)
900 		mb->un.varRegVpi.vfi = phba->sli4_hba.vfi_ids[vport->vfi];
901 	else
902 		mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
903 	memcpy(mb->un.varRegVpi.wwn, &vport->fc_portname,
904 	       sizeof(struct lpfc_name));
905 	mb->un.varRegVpi.wwn[0] = cpu_to_le32(mb->un.varRegVpi.wwn[0]);
906 	mb->un.varRegVpi.wwn[1] = cpu_to_le32(mb->un.varRegVpi.wwn[1]);
907 
908 	mb->mbxCommand = MBX_REG_VPI;
909 	mb->mbxOwner = OWN_HOST;
910 	return;
911 
912 }
913 
914 /**
915  * lpfc_unreg_vpi - Prepare a mailbox command for unregistering vport id
916  * @phba: pointer to lpfc hba data structure.
917  * @vpi: virtual N_Port identifier.
918  * @pmb: pointer to the driver internal queue element for mailbox command.
919  *
920  * The unregistration vport identifier mailbox command is used to inactivate
921  * a virtual N_Port. The driver must have logged out and unregistered all
922  * remote N_Ports to abort any activity on the virtual N_Port. The HBA will
923  * unregisters any default RPIs associated with the specified vpi, aborting
924  * any active exchanges. The HBA will post the mailbox response after making
925  * the virtual N_Port inactive.
926  *
927  * This routine prepares the mailbox command for unregistering a virtual
928  * N_Port.
929  **/
930 void
931 lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
932 {
933 	MAILBOX_t *mb = &pmb->u.mb;
934 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
935 
936 	if (phba->sli_rev == LPFC_SLI_REV3)
937 		mb->un.varUnregVpi.vpi = phba->vpi_ids[vpi];
938 	else if (phba->sli_rev >= LPFC_SLI_REV4)
939 		mb->un.varUnregVpi.sli4_vpi = phba->vpi_ids[vpi];
940 
941 	mb->mbxCommand = MBX_UNREG_VPI;
942 	mb->mbxOwner = OWN_HOST;
943 	return;
944 
945 }
946 
947 /**
948  * lpfc_config_pcb_setup - Set up IOCB rings in the Port Control Block (PCB)
949  * @phba: pointer to lpfc hba data structure.
950  *
951  * This routine sets up and initializes the IOCB rings in the Port Control
952  * Block (PCB).
953  **/
954 static void
955 lpfc_config_pcb_setup(struct lpfc_hba * phba)
956 {
957 	struct lpfc_sli *psli = &phba->sli;
958 	struct lpfc_sli_ring *pring;
959 	PCB_t *pcbp = phba->pcb;
960 	dma_addr_t pdma_addr;
961 	uint32_t offset;
962 	uint32_t iocbCnt = 0;
963 	int i;
964 
965 	pcbp->maxRing = (psli->num_rings - 1);
966 
967 	for (i = 0; i < psli->num_rings; i++) {
968 		pring = &psli->sli3_ring[i];
969 
970 		pring->sli.sli3.sizeCiocb =
971 			phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE :
972 							SLI2_IOCB_CMD_SIZE;
973 		pring->sli.sli3.sizeRiocb =
974 			phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE :
975 							SLI2_IOCB_RSP_SIZE;
976 		/* A ring MUST have both cmd and rsp entries defined to be
977 		   valid */
978 		if ((pring->sli.sli3.numCiocb == 0) ||
979 			(pring->sli.sli3.numRiocb == 0)) {
980 			pcbp->rdsc[i].cmdEntries = 0;
981 			pcbp->rdsc[i].rspEntries = 0;
982 			pcbp->rdsc[i].cmdAddrHigh = 0;
983 			pcbp->rdsc[i].rspAddrHigh = 0;
984 			pcbp->rdsc[i].cmdAddrLow = 0;
985 			pcbp->rdsc[i].rspAddrLow = 0;
986 			pring->sli.sli3.cmdringaddr = NULL;
987 			pring->sli.sli3.rspringaddr = NULL;
988 			continue;
989 		}
990 		/* Command ring setup for ring */
991 		pring->sli.sli3.cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
992 		pcbp->rdsc[i].cmdEntries = pring->sli.sli3.numCiocb;
993 
994 		offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
995 			 (uint8_t *) phba->slim2p.virt;
996 		pdma_addr = phba->slim2p.phys + offset;
997 		pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
998 		pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
999 		iocbCnt += pring->sli.sli3.numCiocb;
1000 
1001 		/* Response ring setup for ring */
1002 		pring->sli.sli3.rspringaddr = (void *) &phba->IOCBs[iocbCnt];
1003 
1004 		pcbp->rdsc[i].rspEntries = pring->sli.sli3.numRiocb;
1005 		offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
1006 			 (uint8_t *)phba->slim2p.virt;
1007 		pdma_addr = phba->slim2p.phys + offset;
1008 		pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
1009 		pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
1010 		iocbCnt += pring->sli.sli3.numRiocb;
1011 	}
1012 }
1013 
1014 /**
1015  * lpfc_read_rev - Prepare a mailbox command for reading HBA revision
1016  * @phba: pointer to lpfc hba data structure.
1017  * @pmb: pointer to the driver internal queue element for mailbox command.
1018  *
1019  * The read revision mailbox command is used to read the revision levels of
1020  * the HBA components. These components include hardware units, resident
1021  * firmware, and available firmware. HBAs that supports SLI-3 mode of
1022  * operation provide different response information depending on the version
1023  * requested by the driver.
1024  *
1025  * This routine prepares the mailbox command for reading HBA revision
1026  * information.
1027  **/
1028 void
1029 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1030 {
1031 	MAILBOX_t *mb = &pmb->u.mb;
1032 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1033 	mb->un.varRdRev.cv = 1;
1034 	mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
1035 	mb->mbxCommand = MBX_READ_REV;
1036 	mb->mbxOwner = OWN_HOST;
1037 	return;
1038 }
1039 
1040 void
1041 lpfc_sli4_swap_str(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1042 {
1043 	MAILBOX_t *mb = &pmb->u.mb;
1044 	struct lpfc_mqe *mqe;
1045 
1046 	switch (mb->mbxCommand) {
1047 	case  MBX_READ_REV:
1048 		 mqe = &pmb->u.mqe;
1049 		lpfc_sli_pcimem_bcopy(mqe->un.read_rev.fw_name,
1050 				 mqe->un.read_rev.fw_name, 16);
1051 		lpfc_sli_pcimem_bcopy(mqe->un.read_rev.ulp_fw_name,
1052 				 mqe->un.read_rev.ulp_fw_name, 16);
1053 		break;
1054 	default:
1055 		break;
1056 	}
1057 	return;
1058 }
1059 
1060 /**
1061  * lpfc_build_hbq_profile2 - Set up the HBQ Selection Profile 2
1062  * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1063  * @hbq_desc: pointer to the HBQ selection profile descriptor.
1064  *
1065  * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
1066  * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
1067  * the Sequence Length Test using the fields in the Selection Profile 2
1068  * extension in words 20:31.
1069  **/
1070 static void
1071 lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
1072 			struct lpfc_hbq_init  *hbq_desc)
1073 {
1074 	hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
1075 	hbqmb->profiles.profile2.maxlen     = hbq_desc->maxlen;
1076 	hbqmb->profiles.profile2.seqlenoff  = hbq_desc->seqlenoff;
1077 }
1078 
1079 /**
1080  * lpfc_build_hbq_profile3 - Set up the HBQ Selection Profile 3
1081  * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1082  * @hbq_desc: pointer to the HBQ selection profile descriptor.
1083  *
1084  * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
1085  * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
1086  * the Sequence Length Test and Byte Field Test using the fields in the
1087  * Selection Profile 3 extension in words 20:31.
1088  **/
1089 static void
1090 lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
1091 			struct lpfc_hbq_init  *hbq_desc)
1092 {
1093 	hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
1094 	hbqmb->profiles.profile3.maxlen     = hbq_desc->maxlen;
1095 	hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
1096 	hbqmb->profiles.profile3.seqlenoff  = hbq_desc->seqlenoff;
1097 	memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
1098 	       sizeof(hbqmb->profiles.profile3.cmdmatch));
1099 }
1100 
1101 /**
1102  * lpfc_build_hbq_profile5 - Set up the HBQ Selection Profile 5
1103  * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1104  * @hbq_desc: pointer to the HBQ selection profile descriptor.
1105  *
1106  * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
1107  * HBA tests the initial frame of an incoming sequence using the frame's
1108  * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
1109  * and Byte Field Test using the fields in the Selection Profile 5 extension
1110  * words 20:31.
1111  **/
1112 static void
1113 lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
1114 			struct lpfc_hbq_init  *hbq_desc)
1115 {
1116 	hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
1117 	hbqmb->profiles.profile5.maxlen     = hbq_desc->maxlen;
1118 	hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
1119 	hbqmb->profiles.profile5.seqlenoff  = hbq_desc->seqlenoff;
1120 	memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
1121 	       sizeof(hbqmb->profiles.profile5.cmdmatch));
1122 }
1123 
1124 /**
1125  * lpfc_config_hbq - Prepare a mailbox command for configuring an HBQ
1126  * @phba: pointer to lpfc hba data structure.
1127  * @id: HBQ identifier.
1128  * @hbq_desc: pointer to the HBA descriptor data structure.
1129  * @hbq_entry_index: index of the HBQ entry data structures.
1130  * @pmb: pointer to the driver internal queue element for mailbox command.
1131  *
1132  * The configure HBQ (Host Buffer Queue) mailbox command is used to configure
1133  * an HBQ. The configuration binds events that require buffers to a particular
1134  * ring and HBQ based on a selection profile.
1135  *
1136  * This routine prepares the mailbox command for configuring an HBQ.
1137  **/
1138 void
1139 lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
1140 		 struct lpfc_hbq_init *hbq_desc,
1141 		uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
1142 {
1143 	int i;
1144 	MAILBOX_t *mb = &pmb->u.mb;
1145 	struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
1146 
1147 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1148 	hbqmb->hbqId = id;
1149 	hbqmb->entry_count = hbq_desc->entry_count;   /* # entries in HBQ */
1150 	hbqmb->recvNotify = hbq_desc->rn;             /* Receive
1151 						       * Notification */
1152 	hbqmb->numMask    = hbq_desc->mask_count;     /* # R_CTL/TYPE masks
1153 						       * # in words 0-19 */
1154 	hbqmb->profile    = hbq_desc->profile;	      /* Selection profile:
1155 						       * 0 = all,
1156 						       * 7 = logentry */
1157 	hbqmb->ringMask   = hbq_desc->ring_mask;      /* Binds HBQ to a ring
1158 						       * e.g. Ring0=b0001,
1159 						       * ring2=b0100 */
1160 	hbqmb->headerLen  = hbq_desc->headerLen;      /* 0 if not profile 4
1161 						       * or 5 */
1162 	hbqmb->logEntry   = hbq_desc->logEntry;       /* Set to 1 if this
1163 						       * HBQ will be used
1164 						       * for LogEntry
1165 						       * buffers */
1166 	hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
1167 		hbq_entry_index * sizeof(struct lpfc_hbq_entry);
1168 	hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
1169 
1170 	mb->mbxCommand = MBX_CONFIG_HBQ;
1171 	mb->mbxOwner = OWN_HOST;
1172 
1173 				/* Copy info for profiles 2,3,5. Other
1174 				 * profiles this area is reserved
1175 				 */
1176 	if (hbq_desc->profile == 2)
1177 		lpfc_build_hbq_profile2(hbqmb, hbq_desc);
1178 	else if (hbq_desc->profile == 3)
1179 		lpfc_build_hbq_profile3(hbqmb, hbq_desc);
1180 	else if (hbq_desc->profile == 5)
1181 		lpfc_build_hbq_profile5(hbqmb, hbq_desc);
1182 
1183 	/* Return if no rctl / type masks for this HBQ */
1184 	if (!hbq_desc->mask_count)
1185 		return;
1186 
1187 	/* Otherwise we setup specific rctl / type masks for this HBQ */
1188 	for (i = 0; i < hbq_desc->mask_count; i++) {
1189 		hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
1190 		hbqmb->hbqMasks[i].tmask  = hbq_desc->hbqMasks[i].tmask;
1191 		hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
1192 		hbqmb->hbqMasks[i].rctlmask  = hbq_desc->hbqMasks[i].rctlmask;
1193 	}
1194 
1195 	return;
1196 }
1197 
1198 /**
1199  * lpfc_config_ring - Prepare a mailbox command for configuring an IOCB ring
1200  * @phba: pointer to lpfc hba data structure.
1201  * @ring:
1202  * @pmb: pointer to the driver internal queue element for mailbox command.
1203  *
1204  * The configure ring mailbox command is used to configure an IOCB ring. This
1205  * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
1206  * ring. This is used to map incoming sequences to a particular ring whose
1207  * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
1208  * attempt to configure a ring whose number is greater than the number
1209  * specified in the Port Control Block (PCB). It is an error to issue the
1210  * configure ring command more than once with the same ring number. The HBA
1211  * returns an error if the driver attempts this.
1212  *
1213  * This routine prepares the mailbox command for configuring IOCB ring.
1214  **/
1215 void
1216 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
1217 {
1218 	int i;
1219 	MAILBOX_t *mb = &pmb->u.mb;
1220 	struct lpfc_sli *psli;
1221 	struct lpfc_sli_ring *pring;
1222 
1223 	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1224 
1225 	mb->un.varCfgRing.ring = ring;
1226 	mb->un.varCfgRing.maxOrigXchg = 0;
1227 	mb->un.varCfgRing.maxRespXchg = 0;
1228 	mb->un.varCfgRing.recvNotify = 1;
1229 
1230 	psli = &phba->sli;
1231 	pring = &psli->sli3_ring[ring];
1232 	mb->un.varCfgRing.numMask = pring->num_mask;
1233 	mb->mbxCommand = MBX_CONFIG_RING;
1234 	mb->mbxOwner = OWN_HOST;
1235 
1236 	/* Is this ring configured for a specific profile */
1237 	if (pring->prt[0].profile) {
1238 		mb->un.varCfgRing.profile = pring->prt[0].profile;
1239 		return;
1240 	}
1241 
1242 	/* Otherwise we setup specific rctl / type masks for this ring */
1243 	for (i = 0; i < pring->num_mask; i++) {
1244 		mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
1245 		if (mb->un.varCfgRing.rrRegs[i].rval != FC_RCTL_ELS_REQ)
1246 			mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
1247 		else
1248 			mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
1249 		mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
1250 		mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
1251 	}
1252 
1253 	return;
1254 }
1255 
1256 /**
1257  * lpfc_config_port - Prepare a mailbox command for configuring port
1258  * @phba: pointer to lpfc hba data structure.
1259  * @pmb: pointer to the driver internal queue element for mailbox command.
1260  *
1261  * The configure port mailbox command is used to identify the Port Control
1262  * Block (PCB) in the driver memory. After this command is issued, the
1263  * driver must not access the mailbox in the HBA without first resetting
1264  * the HBA. The HBA may copy the PCB information to internal storage for
1265  * subsequent use; the driver can not change the PCB information unless it
1266  * resets the HBA.
1267  *
1268  * This routine prepares the mailbox command for configuring port.
1269  **/
1270 void
1271 lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1272 {
1273 	MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
1274 	MAILBOX_t *mb = &pmb->u.mb;
1275 	dma_addr_t pdma_addr;
1276 	uint32_t bar_low, bar_high;
1277 	size_t offset;
1278 	struct lpfc_hgp hgp;
1279 	int i;
1280 	uint32_t pgp_offset;
1281 
1282 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1283 	mb->mbxCommand = MBX_CONFIG_PORT;
1284 	mb->mbxOwner = OWN_HOST;
1285 
1286 	mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
1287 
1288 	offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
1289 	pdma_addr = phba->slim2p.phys + offset;
1290 	mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
1291 	mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
1292 
1293 	/* Always Host Group Pointer is in SLIM */
1294 	mb->un.varCfgPort.hps = 1;
1295 
1296 	/* If HBA supports SLI=3 ask for it */
1297 
1298 	if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
1299 		if (phba->cfg_enable_bg)
1300 			mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
1301 		if (phba->cfg_enable_dss)
1302 			mb->un.varCfgPort.cdss = 1; /* Configure Security */
1303 		mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
1304 		mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
1305 		mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
1306 		if (phba->max_vpi && phba->cfg_enable_npiv &&
1307 		    phba->vpd.sli3Feat.cmv) {
1308 			mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
1309 			mb->un.varCfgPort.cmv = 1;
1310 		} else
1311 			mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
1312 	} else
1313 		phba->sli_rev = LPFC_SLI_REV2;
1314 	mb->un.varCfgPort.sli_mode = phba->sli_rev;
1315 
1316 	/* If this is an SLI3 port, configure async status notification. */
1317 	if (phba->sli_rev == LPFC_SLI_REV3)
1318 		mb->un.varCfgPort.casabt = 1;
1319 
1320 	/* Now setup pcb */
1321 	phba->pcb->type = TYPE_NATIVE_SLI2;
1322 	phba->pcb->feature = FEATURE_INITIAL_SLI2;
1323 
1324 	/* Setup Mailbox pointers */
1325 	phba->pcb->mailBoxSize = sizeof(MAILBOX_t) + MAILBOX_EXT_SIZE;
1326 	offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
1327 	pdma_addr = phba->slim2p.phys + offset;
1328 	phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
1329 	phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);
1330 
1331 	/*
1332 	 * Setup Host Group ring pointer.
1333 	 *
1334 	 * For efficiency reasons, the ring get/put pointers can be
1335 	 * placed in adapter memory (SLIM) rather than in host memory.
1336 	 * This allows firmware to avoid PCI reads/writes when updating
1337 	 * and checking pointers.
1338 	 *
1339 	 * The firmware recognizes the use of SLIM memory by comparing
1340 	 * the address of the get/put pointers structure with that of
1341 	 * the SLIM BAR (BAR0).
1342 	 *
1343 	 * Caution: be sure to use the PCI config space value of BAR0/BAR1
1344 	 * (the hardware's view of the base address), not the OS's
1345 	 * value of pci_resource_start() as the OS value may be a cookie
1346 	 * for ioremap/iomap.
1347 	 */
1348 
1349 
1350 	pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
1351 	pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
1352 
1353 	/*
1354 	 * Set up HGP - Port Memory
1355 	 *
1356 	 * The port expects the host get/put pointers to reside in memory
1357 	 * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
1358 	 * area of SLIM.  In SLI-2 mode, there's an additional 16 reserved
1359 	 * words (0x40 bytes).  This area is not reserved if HBQs are
1360 	 * configured in SLI-3.
1361 	 *
1362 	 * CR0Put    - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
1363 	 * RR0Get                      0xc4              0x84
1364 	 * CR1Put                      0xc8              0x88
1365 	 * RR1Get                      0xcc              0x8c
1366 	 * CR2Put                      0xd0              0x90
1367 	 * RR2Get                      0xd4              0x94
1368 	 * CR3Put                      0xd8              0x98
1369 	 * RR3Get                      0xdc              0x9c
1370 	 *
1371 	 * Reserved                    0xa0-0xbf
1372 	 *    If HBQs configured:
1373 	 *                         HBQ 0 Put ptr  0xc0
1374 	 *                         HBQ 1 Put ptr  0xc4
1375 	 *                         HBQ 2 Put ptr  0xc8
1376 	 *                         ......
1377 	 *                         HBQ(M-1)Put Pointer 0xc0+(M-1)*4
1378 	 *
1379 	 */
1380 
1381 	if (phba->cfg_hostmem_hgp && phba->sli_rev != 3) {
1382 		phba->host_gp = &phba->mbox->us.s2.host[0];
1383 		phba->hbq_put = NULL;
1384 		offset = (uint8_t *)&phba->mbox->us.s2.host -
1385 			(uint8_t *)phba->slim2p.virt;
1386 		pdma_addr = phba->slim2p.phys + offset;
1387 		phba->pcb->hgpAddrHigh = putPaddrHigh(pdma_addr);
1388 		phba->pcb->hgpAddrLow = putPaddrLow(pdma_addr);
1389 	} else {
1390 		/* Always Host Group Pointer is in SLIM */
1391 		mb->un.varCfgPort.hps = 1;
1392 
1393 		if (phba->sli_rev == 3) {
1394 			phba->host_gp = &mb_slim->us.s3.host[0];
1395 			phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
1396 		} else {
1397 			phba->host_gp = &mb_slim->us.s2.host[0];
1398 			phba->hbq_put = NULL;
1399 		}
1400 
1401 		/* mask off BAR0's flag bits 0 - 3 */
1402 		phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
1403 			(void __iomem *)phba->host_gp -
1404 			(void __iomem *)phba->MBslimaddr;
1405 		if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
1406 			phba->pcb->hgpAddrHigh = bar_high;
1407 		else
1408 			phba->pcb->hgpAddrHigh = 0;
1409 		/* write HGP data to SLIM at the required longword offset */
1410 		memset(&hgp, 0, sizeof(struct lpfc_hgp));
1411 
1412 		for (i = 0; i < phba->sli.num_rings; i++) {
1413 			lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
1414 				    sizeof(*phba->host_gp));
1415 		}
1416 	}
1417 
1418 	/* Setup Port Group offset */
1419 	if (phba->sli_rev == 3)
1420 		pgp_offset = offsetof(struct lpfc_sli2_slim,
1421 				      mbx.us.s3_pgp.port);
1422 	else
1423 		pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
1424 	pdma_addr = phba->slim2p.phys + pgp_offset;
1425 	phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
1426 	phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);
1427 
1428 	/* Use callback routine to setp rings in the pcb */
1429 	lpfc_config_pcb_setup(phba);
1430 
1431 	/* special handling for LC HBAs */
1432 	if (lpfc_is_LC_HBA(phba->pcidev->device)) {
1433 		uint32_t hbainit[5];
1434 
1435 		lpfc_hba_init(phba, hbainit);
1436 
1437 		memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
1438 	}
1439 
1440 	/* Swap PCB if needed */
1441 	lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
1442 }
1443 
1444 /**
1445  * lpfc_kill_board - Prepare a mailbox command for killing board
1446  * @phba: pointer to lpfc hba data structure.
1447  * @pmb: pointer to the driver internal queue element for mailbox command.
1448  *
1449  * The kill board mailbox command is used to tell firmware to perform a
1450  * graceful shutdown of a channel on a specified board to prepare for reset.
1451  * When the kill board mailbox command is received, the ER3 bit is set to 1
1452  * in the Host Status register and the ER Attention bit is set to 1 in the
1453  * Host Attention register of the HBA function that received the kill board
1454  * command.
1455  *
1456  * This routine prepares the mailbox command for killing the board in
1457  * preparation for a graceful shutdown.
1458  **/
1459 void
1460 lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1461 {
1462 	MAILBOX_t *mb = &pmb->u.mb;
1463 
1464 	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1465 	mb->mbxCommand = MBX_KILL_BOARD;
1466 	mb->mbxOwner = OWN_HOST;
1467 	return;
1468 }
1469 
1470 /**
1471  * lpfc_mbox_put - Put a mailbox cmd into the tail of driver's mailbox queue
1472  * @phba: pointer to lpfc hba data structure.
1473  * @mbq: pointer to the driver internal queue element for mailbox command.
1474  *
1475  * Driver maintains a internal mailbox command queue implemented as a linked
1476  * list. When a mailbox command is issued, it shall be put into the mailbox
1477  * command queue such that they shall be processed orderly as HBA can process
1478  * one mailbox command at a time.
1479  **/
1480 void
1481 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
1482 {
1483 	struct lpfc_sli *psli;
1484 
1485 	psli = &phba->sli;
1486 
1487 	list_add_tail(&mbq->list, &psli->mboxq);
1488 
1489 	psli->mboxq_cnt++;
1490 
1491 	return;
1492 }
1493 
1494 /**
1495  * lpfc_mbox_get - Remove a mailbox cmd from the head of driver's mailbox queue
1496  * @phba: pointer to lpfc hba data structure.
1497  *
1498  * Driver maintains a internal mailbox command queue implemented as a linked
1499  * list. When a mailbox command is issued, it shall be put into the mailbox
1500  * command queue such that they shall be processed orderly as HBA can process
1501  * one mailbox command at a time. After HBA finished processing a mailbox
1502  * command, the driver will remove a pending mailbox command from the head of
1503  * the mailbox command queue and send to the HBA for processing.
1504  *
1505  * Return codes
1506  *    pointer to the driver internal queue element for mailbox command.
1507  **/
1508 LPFC_MBOXQ_t *
1509 lpfc_mbox_get(struct lpfc_hba * phba)
1510 {
1511 	LPFC_MBOXQ_t *mbq = NULL;
1512 	struct lpfc_sli *psli = &phba->sli;
1513 
1514 	list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
1515 	if (mbq)
1516 		psli->mboxq_cnt--;
1517 
1518 	return mbq;
1519 }
1520 
1521 /**
1522  * __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
1523  * @phba: pointer to lpfc hba data structure.
1524  * @mbq: pointer to the driver internal queue element for mailbox command.
1525  *
1526  * This routine put the completed mailbox command into the mailbox command
1527  * complete list. This is the unlocked version of the routine. The mailbox
1528  * complete list is used by the driver worker thread to process mailbox
1529  * complete callback functions outside the driver interrupt handler.
1530  **/
1531 void
1532 __lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
1533 {
1534 	list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
1535 }
1536 
1537 /**
1538  * lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
1539  * @phba: pointer to lpfc hba data structure.
1540  * @mbq: pointer to the driver internal queue element for mailbox command.
1541  *
1542  * This routine put the completed mailbox command into the mailbox command
1543  * complete list. This is the locked version of the routine. The mailbox
1544  * complete list is used by the driver worker thread to process mailbox
1545  * complete callback functions outside the driver interrupt handler.
1546  **/
1547 void
1548 lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
1549 {
1550 	unsigned long iflag;
1551 
1552 	/* This function expects to be called from interrupt context */
1553 	spin_lock_irqsave(&phba->hbalock, iflag);
1554 	__lpfc_mbox_cmpl_put(phba, mbq);
1555 	spin_unlock_irqrestore(&phba->hbalock, iflag);
1556 	return;
1557 }
1558 
1559 /**
1560  * lpfc_mbox_cmd_check - Check the validality of a mailbox command
1561  * @phba: pointer to lpfc hba data structure.
1562  * @mboxq: pointer to the driver internal queue element for mailbox command.
1563  *
1564  * This routine is to check whether a mailbox command is valid to be issued.
1565  * This check will be performed by both the mailbox issue API when a client
1566  * is to issue a mailbox command to the mailbox transport.
1567  *
1568  * Return 0 - pass the check, -ENODEV - fail the check
1569  **/
1570 int
1571 lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1572 {
1573 	/* Mailbox command that have a completion handler must also have a
1574 	 * vport specified.
1575 	 */
1576 	if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
1577 	    mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
1578 		if (!mboxq->vport) {
1579 			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1580 					"1814 Mbox x%x failed, no vport\n",
1581 					mboxq->u.mb.mbxCommand);
1582 			dump_stack();
1583 			return -ENODEV;
1584 		}
1585 	}
1586 	return 0;
1587 }
1588 
1589 /**
1590  * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
1591  * @phba: pointer to lpfc hba data structure.
1592  *
1593  * This routine is to check whether the HBA device is ready for posting a
1594  * mailbox command. It is used by the mailbox transport API at the time the
1595  * to post a mailbox command to the device.
1596  *
1597  * Return 0 - pass the check, -ENODEV - fail the check
1598  **/
1599 int
1600 lpfc_mbox_dev_check(struct lpfc_hba *phba)
1601 {
1602 	/* If the PCI channel is in offline state, do not issue mbox */
1603 	if (unlikely(pci_channel_offline(phba->pcidev)))
1604 		return -ENODEV;
1605 
1606 	/* If the HBA is in error state, do not issue mbox */
1607 	if (phba->link_state == LPFC_HBA_ERROR)
1608 		return -ENODEV;
1609 
1610 	return 0;
1611 }
1612 
1613 /**
1614  * lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
1615  * @phba: pointer to lpfc hba data structure.
1616  * @cmd: mailbox command code.
1617  *
1618  * This routine retrieves the proper timeout value according to the mailbox
1619  * command code.
1620  *
1621  * Return codes
1622  *    Timeout value to be used for the given mailbox command
1623  **/
1624 int
1625 lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1626 {
1627 	MAILBOX_t *mbox = &mboxq->u.mb;
1628 	uint8_t subsys, opcode;
1629 
1630 	switch (mbox->mbxCommand) {
1631 	case MBX_WRITE_NV:	/* 0x03 */
1632 	case MBX_DUMP_MEMORY:	/* 0x17 */
1633 	case MBX_UPDATE_CFG:	/* 0x1B */
1634 	case MBX_DOWN_LOAD:	/* 0x1C */
1635 	case MBX_DEL_LD_ENTRY:	/* 0x1D */
1636 	case MBX_WRITE_VPARMS:	/* 0x32 */
1637 	case MBX_LOAD_AREA:	/* 0x81 */
1638 	case MBX_WRITE_WWN:     /* 0x98 */
1639 	case MBX_LOAD_EXP_ROM:	/* 0x9C */
1640 	case MBX_ACCESS_VDATA:	/* 0xA5 */
1641 		return LPFC_MBOX_TMO_FLASH_CMD;
1642 	case MBX_SLI4_CONFIG:	/* 0x9b */
1643 		subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
1644 		opcode = lpfc_sli_config_mbox_opcode_get(phba, mboxq);
1645 		if (subsys == LPFC_MBOX_SUBSYSTEM_COMMON) {
1646 			switch (opcode) {
1647 			case LPFC_MBOX_OPCODE_READ_OBJECT:
1648 			case LPFC_MBOX_OPCODE_WRITE_OBJECT:
1649 			case LPFC_MBOX_OPCODE_READ_OBJECT_LIST:
1650 			case LPFC_MBOX_OPCODE_DELETE_OBJECT:
1651 			case LPFC_MBOX_OPCODE_GET_PROFILE_LIST:
1652 			case LPFC_MBOX_OPCODE_SET_ACT_PROFILE:
1653 			case LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG:
1654 			case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG:
1655 			case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG:
1656 			case LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES:
1657 			case LPFC_MBOX_OPCODE_SEND_ACTIVATION:
1658 			case LPFC_MBOX_OPCODE_RESET_LICENSES:
1659 			case LPFC_MBOX_OPCODE_SET_BOOT_CONFIG:
1660 			case LPFC_MBOX_OPCODE_GET_VPD_DATA:
1661 			case LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG:
1662 				return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
1663 			}
1664 		}
1665 		if (subsys == LPFC_MBOX_SUBSYSTEM_FCOE) {
1666 			switch (opcode) {
1667 			case LPFC_MBOX_OPCODE_FCOE_SET_FCLINK_SETTINGS:
1668 				return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
1669 			}
1670 		}
1671 		return LPFC_MBOX_SLI4_CONFIG_TMO;
1672 	}
1673 	return LPFC_MBOX_TMO;
1674 }
1675 
1676 /**
1677  * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
1678  * @mbox: pointer to lpfc mbox command.
1679  * @sgentry: sge entry index.
1680  * @phyaddr: physical address for the sge
1681  * @length: Length of the sge.
1682  *
1683  * This routine sets up an entry in the non-embedded mailbox command at the sge
1684  * index location.
1685  **/
1686 void
1687 lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
1688 		      dma_addr_t phyaddr, uint32_t length)
1689 {
1690 	struct lpfc_mbx_nembed_cmd *nembed_sge;
1691 
1692 	nembed_sge = (struct lpfc_mbx_nembed_cmd *)
1693 				&mbox->u.mqe.un.nembed_cmd;
1694 	nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
1695 	nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
1696 	nembed_sge->sge[sgentry].length = length;
1697 }
1698 
1699 /**
1700  * lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
1701  * @mbox: pointer to lpfc mbox command.
1702  * @sgentry: sge entry index.
1703  *
1704  * This routine gets an entry from the non-embedded mailbox command at the sge
1705  * index location.
1706  **/
1707 void
1708 lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
1709 		      struct lpfc_mbx_sge *sge)
1710 {
1711 	struct lpfc_mbx_nembed_cmd *nembed_sge;
1712 
1713 	nembed_sge = (struct lpfc_mbx_nembed_cmd *)
1714 				&mbox->u.mqe.un.nembed_cmd;
1715 	sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
1716 	sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
1717 	sge->length = nembed_sge->sge[sgentry].length;
1718 }
1719 
1720 /**
1721  * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
1722  * @phba: pointer to lpfc hba data structure.
1723  * @mbox: pointer to lpfc mbox command.
1724  *
1725  * This routine frees SLI4 specific mailbox command for sending IOCTL command.
1726  **/
1727 void
1728 lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
1729 {
1730 	struct lpfc_mbx_sli4_config *sli4_cfg;
1731 	struct lpfc_mbx_sge sge;
1732 	dma_addr_t phyaddr;
1733 	uint32_t sgecount, sgentry;
1734 
1735 	sli4_cfg = &mbox->u.mqe.un.sli4_config;
1736 
1737 	/* For embedded mbox command, just free the mbox command */
1738 	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
1739 		mempool_free(mbox, phba->mbox_mem_pool);
1740 		return;
1741 	}
1742 
1743 	/* For non-embedded mbox command, we need to free the pages first */
1744 	sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
1745 	/* There is nothing we can do if there is no sge address array */
1746 	if (unlikely(!mbox->sge_array)) {
1747 		mempool_free(mbox, phba->mbox_mem_pool);
1748 		return;
1749 	}
1750 	/* Each non-embedded DMA memory was allocated in the length of a page */
1751 	for (sgentry = 0; sgentry < sgecount; sgentry++) {
1752 		lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
1753 		phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
1754 		dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
1755 				  mbox->sge_array->addr[sgentry], phyaddr);
1756 	}
1757 	/* Free the sge address array memory */
1758 	kfree(mbox->sge_array);
1759 	/* Finally, free the mailbox command itself */
1760 	mempool_free(mbox, phba->mbox_mem_pool);
1761 }
1762 
1763 /**
1764  * lpfc_sli4_config - Initialize the  SLI4 Config Mailbox command
1765  * @phba: pointer to lpfc hba data structure.
1766  * @mbox: pointer to lpfc mbox command.
1767  * @subsystem: The sli4 config sub mailbox subsystem.
1768  * @opcode: The sli4 config sub mailbox command opcode.
1769  * @length: Length of the sli4 config mailbox command (including sub-header).
1770  *
1771  * This routine sets up the header fields of SLI4 specific mailbox command
1772  * for sending IOCTL command.
1773  *
1774  * Return: the actual length of the mbox command allocated (mostly useful
1775  *         for none embedded mailbox command).
1776  **/
1777 int
1778 lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
1779 		 uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
1780 {
1781 	struct lpfc_mbx_sli4_config *sli4_config;
1782 	union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
1783 	uint32_t alloc_len;
1784 	uint32_t resid_len;
1785 	uint32_t pagen, pcount;
1786 	void *viraddr;
1787 	dma_addr_t phyaddr;
1788 
1789 	/* Set up SLI4 mailbox command header fields */
1790 	memset(mbox, 0, sizeof(*mbox));
1791 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
1792 
1793 	/* Set up SLI4 ioctl command header fields */
1794 	sli4_config = &mbox->u.mqe.un.sli4_config;
1795 
1796 	/* Setup for the embedded mbox command */
1797 	if (emb) {
1798 		/* Set up main header fields */
1799 		bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
1800 		sli4_config->header.cfg_mhdr.payload_length = length;
1801 		/* Set up sub-header fields following main header */
1802 		bf_set(lpfc_mbox_hdr_opcode,
1803 			&sli4_config->header.cfg_shdr.request, opcode);
1804 		bf_set(lpfc_mbox_hdr_subsystem,
1805 			&sli4_config->header.cfg_shdr.request, subsystem);
1806 		sli4_config->header.cfg_shdr.request.request_length =
1807 			length - LPFC_MBX_CMD_HDR_LENGTH;
1808 		return length;
1809 	}
1810 
1811 	/* Setup for the non-embedded mbox command */
1812 	pcount = (SLI4_PAGE_ALIGN(length))/SLI4_PAGE_SIZE;
1813 	pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
1814 				LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
1815 	/* Allocate record for keeping SGE virtual addresses */
1816 	mbox->sge_array = kzalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
1817 				  GFP_KERNEL);
1818 	if (!mbox->sge_array) {
1819 		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1820 				"2527 Failed to allocate non-embedded SGE "
1821 				"array.\n");
1822 		return 0;
1823 	}
1824 	for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
1825 		/* The DMA memory is always allocated in the length of a
1826 		 * page even though the last SGE might not fill up to a
1827 		 * page, this is used as a priori size of SLI4_PAGE_SIZE for
1828 		 * the later DMA memory free.
1829 		 */
1830 		viraddr = dma_alloc_coherent(&phba->pcidev->dev,
1831 					     SLI4_PAGE_SIZE, &phyaddr,
1832 					     GFP_KERNEL);
1833 		/* In case of malloc fails, proceed with whatever we have */
1834 		if (!viraddr)
1835 			break;
1836 		mbox->sge_array->addr[pagen] = viraddr;
1837 		/* Keep the first page for later sub-header construction */
1838 		if (pagen == 0)
1839 			cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
1840 		resid_len = length - alloc_len;
1841 		if (resid_len > SLI4_PAGE_SIZE) {
1842 			lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
1843 					      SLI4_PAGE_SIZE);
1844 			alloc_len += SLI4_PAGE_SIZE;
1845 		} else {
1846 			lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
1847 					      resid_len);
1848 			alloc_len = length;
1849 		}
1850 	}
1851 
1852 	/* Set up main header fields in mailbox command */
1853 	sli4_config->header.cfg_mhdr.payload_length = alloc_len;
1854 	bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
1855 
1856 	/* Set up sub-header fields into the first page */
1857 	if (pagen > 0) {
1858 		bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
1859 		bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
1860 		cfg_shdr->request.request_length =
1861 				alloc_len - sizeof(union  lpfc_sli4_cfg_shdr);
1862 	}
1863 	/* The sub-header is in DMA memory, which needs endian converstion */
1864 	if (cfg_shdr)
1865 		lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
1866 				      sizeof(union  lpfc_sli4_cfg_shdr));
1867 	return alloc_len;
1868 }
1869 
1870 /**
1871  * lpfc_sli4_mbox_rsrc_extent - Initialize the opcode resource extent.
1872  * @phba: pointer to lpfc hba data structure.
1873  * @mbox: pointer to an allocated lpfc mbox resource.
1874  * @exts_count: the number of extents, if required, to allocate.
1875  * @rsrc_type: the resource extent type.
1876  * @emb: true if LPFC_SLI4_MBX_EMBED. false if LPFC_SLI4_MBX_NEMBED.
1877  *
1878  * This routine completes the subcommand header for SLI4 resource extent
1879  * mailbox commands.  It is called after lpfc_sli4_config.  The caller must
1880  * pass an allocated mailbox and the attributes required to initialize the
1881  * mailbox correctly.
1882  *
1883  * Return: the actual length of the mbox command allocated.
1884  **/
1885 int
1886 lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
1887 			   uint16_t exts_count, uint16_t rsrc_type, bool emb)
1888 {
1889 	uint8_t opcode = 0;
1890 	struct lpfc_mbx_nembed_rsrc_extent *n_rsrc_extnt = NULL;
1891 	void *virtaddr = NULL;
1892 
1893 	/* Set up SLI4 ioctl command header fields */
1894 	if (emb == LPFC_SLI4_MBX_NEMBED) {
1895 		/* Get the first SGE entry from the non-embedded DMA memory */
1896 		virtaddr = mbox->sge_array->addr[0];
1897 		if (virtaddr == NULL)
1898 			return 1;
1899 		n_rsrc_extnt = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
1900 	}
1901 
1902 	/*
1903 	 * The resource type is common to all extent Opcodes and resides in the
1904 	 * same position.
1905 	 */
1906 	if (emb == LPFC_SLI4_MBX_EMBED)
1907 		bf_set(lpfc_mbx_alloc_rsrc_extents_type,
1908 		       &mbox->u.mqe.un.alloc_rsrc_extents.u.req,
1909 		       rsrc_type);
1910 	else {
1911 		/* This is DMA data.  Byteswap is required. */
1912 		bf_set(lpfc_mbx_alloc_rsrc_extents_type,
1913 		       n_rsrc_extnt, rsrc_type);
1914 		lpfc_sli_pcimem_bcopy(&n_rsrc_extnt->word4,
1915 				      &n_rsrc_extnt->word4,
1916 				      sizeof(uint32_t));
1917 	}
1918 
1919 	/* Complete the initialization for the particular Opcode. */
1920 	opcode = lpfc_sli_config_mbox_opcode_get(phba, mbox);
1921 	switch (opcode) {
1922 	case LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT:
1923 		if (emb == LPFC_SLI4_MBX_EMBED)
1924 			bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
1925 			       &mbox->u.mqe.un.alloc_rsrc_extents.u.req,
1926 			       exts_count);
1927 		else
1928 			bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
1929 			       n_rsrc_extnt, exts_count);
1930 		break;
1931 	case LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT:
1932 	case LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO:
1933 	case LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT:
1934 		/* Initialization is complete.*/
1935 		break;
1936 	default:
1937 		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1938 				"2929 Resource Extent Opcode x%x is "
1939 				"unsupported\n", opcode);
1940 		return 1;
1941 	}
1942 
1943 	return 0;
1944 }
1945 
1946 /**
1947  * lpfc_sli_config_mbox_subsys_get - Get subsystem from a sli_config mbox cmd
1948  * @phba: pointer to lpfc hba data structure.
1949  * @mbox: pointer to lpfc mbox command queue entry.
1950  *
1951  * This routine gets the subsystem from a SLI4 specific SLI_CONFIG mailbox
1952  * command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if the
1953  * sub-header is not present, subsystem LPFC_MBOX_SUBSYSTEM_NA (0x0) shall
1954  * be returned.
1955  **/
1956 uint8_t
1957 lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
1958 {
1959 	struct lpfc_mbx_sli4_config *sli4_cfg;
1960 	union lpfc_sli4_cfg_shdr *cfg_shdr;
1961 
1962 	if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
1963 		return LPFC_MBOX_SUBSYSTEM_NA;
1964 	sli4_cfg = &mbox->u.mqe.un.sli4_config;
1965 
1966 	/* For embedded mbox command, get opcode from embedded sub-header*/
1967 	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
1968 		cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
1969 		return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
1970 	}
1971 
1972 	/* For non-embedded mbox command, get opcode from first dma page */
1973 	if (unlikely(!mbox->sge_array))
1974 		return LPFC_MBOX_SUBSYSTEM_NA;
1975 	cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
1976 	return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
1977 }
1978 
1979 /**
1980  * lpfc_sli_config_mbox_opcode_get - Get opcode from a sli_config mbox cmd
1981  * @phba: pointer to lpfc hba data structure.
1982  * @mbox: pointer to lpfc mbox command queue entry.
1983  *
1984  * This routine gets the opcode from a SLI4 specific SLI_CONFIG mailbox
1985  * command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if
1986  * the sub-header is not present, opcode LPFC_MBOX_OPCODE_NA (0x0) be
1987  * returned.
1988  **/
1989 uint8_t
1990 lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
1991 {
1992 	struct lpfc_mbx_sli4_config *sli4_cfg;
1993 	union lpfc_sli4_cfg_shdr *cfg_shdr;
1994 
1995 	if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
1996 		return LPFC_MBOX_OPCODE_NA;
1997 	sli4_cfg = &mbox->u.mqe.un.sli4_config;
1998 
1999 	/* For embedded mbox command, get opcode from embedded sub-header*/
2000 	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
2001 		cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
2002 		return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
2003 	}
2004 
2005 	/* For non-embedded mbox command, get opcode from first dma page */
2006 	if (unlikely(!mbox->sge_array))
2007 		return LPFC_MBOX_OPCODE_NA;
2008 	cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
2009 	return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
2010 }
2011 
2012 /**
2013  * lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd
2014  * @phba: pointer to lpfc hba data structure.
2015  * @fcf_index: index to fcf table.
2016  *
2017  * This routine routine allocates and constructs non-embedded mailbox command
2018  * for reading a FCF table entry referred by @fcf_index.
2019  *
2020  * Return: pointer to the mailbox command constructed if successful, otherwise
2021  * NULL.
2022  **/
2023 int
2024 lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba,
2025 			   struct lpfcMboxq *mboxq,
2026 			   uint16_t fcf_index)
2027 {
2028 	void *virt_addr;
2029 	uint8_t *bytep;
2030 	struct lpfc_mbx_sge sge;
2031 	uint32_t alloc_len, req_len;
2032 	struct lpfc_mbx_read_fcf_tbl *read_fcf;
2033 
2034 	if (!mboxq)
2035 		return -ENOMEM;
2036 
2037 	req_len = sizeof(struct fcf_record) +
2038 		  sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
2039 
2040 	/* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
2041 	alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2042 			LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
2043 			LPFC_SLI4_MBX_NEMBED);
2044 
2045 	if (alloc_len < req_len) {
2046 		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2047 				"0291 Allocated DMA memory size (x%x) is "
2048 				"less than the requested DMA memory "
2049 				"size (x%x)\n", alloc_len, req_len);
2050 		return -ENOMEM;
2051 	}
2052 
2053 	/* Get the first SGE entry from the non-embedded DMA memory. This
2054 	 * routine only uses a single SGE.
2055 	 */
2056 	lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
2057 	virt_addr = mboxq->sge_array->addr[0];
2058 	read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
2059 
2060 	/* Set up command fields */
2061 	bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
2062 	/* Perform necessary endian conversion */
2063 	bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
2064 	lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
2065 
2066 	return 0;
2067 }
2068 
2069 /**
2070  * lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
2071  * @mboxq: pointer to lpfc mbox command.
2072  *
2073  * This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
2074  * mailbox command.
2075  **/
2076 void
2077 lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
2078 {
2079 	/* Set up SLI4 mailbox command header fields */
2080 	memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
2081 	bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);
2082 
2083 	/* Set up host requested features. */
2084 	bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
2085 	bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);
2086 
2087 	/* Enable DIF (block guard) only if configured to do so. */
2088 	if (phba->cfg_enable_bg)
2089 		bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);
2090 
2091 	/* Enable NPIV only if configured to do so. */
2092 	if (phba->max_vpi && phba->cfg_enable_npiv)
2093 		bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);
2094 
2095 	if (phba->nvmet_support) {
2096 		bf_set(lpfc_mbx_rq_ftr_rq_mrqp, &mboxq->u.mqe.un.req_ftrs, 1);
2097 		/* iaab/iaar NOT set for now */
2098 		bf_set(lpfc_mbx_rq_ftr_rq_iaab, &mboxq->u.mqe.un.req_ftrs, 0);
2099 		bf_set(lpfc_mbx_rq_ftr_rq_iaar, &mboxq->u.mqe.un.req_ftrs, 0);
2100 	}
2101 	return;
2102 }
2103 
2104 /**
2105  * lpfc_init_vfi - Initialize the INIT_VFI mailbox command
2106  * @mbox: pointer to lpfc mbox command to initialize.
2107  * @vport: Vport associated with the VF.
2108  *
2109  * This routine initializes @mbox to all zeros and then fills in the mailbox
2110  * fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
2111  * in the context of an FCF. The driver issues this command to setup a VFI
2112  * before issuing a FLOGI to login to the VSAN. The driver should also issue a
2113  * REG_VFI after a successful VSAN login.
2114  **/
2115 void
2116 lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
2117 {
2118 	struct lpfc_mbx_init_vfi *init_vfi;
2119 
2120 	memset(mbox, 0, sizeof(*mbox));
2121 	mbox->vport = vport;
2122 	init_vfi = &mbox->u.mqe.un.init_vfi;
2123 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
2124 	bf_set(lpfc_init_vfi_vr, init_vfi, 1);
2125 	bf_set(lpfc_init_vfi_vt, init_vfi, 1);
2126 	bf_set(lpfc_init_vfi_vp, init_vfi, 1);
2127 	bf_set(lpfc_init_vfi_vfi, init_vfi,
2128 	       vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2129 	bf_set(lpfc_init_vfi_vpi, init_vfi,
2130 	       vport->phba->vpi_ids[vport->vpi]);
2131 	bf_set(lpfc_init_vfi_fcfi, init_vfi,
2132 	       vport->phba->fcf.fcfi);
2133 }
2134 
2135 /**
2136  * lpfc_reg_vfi - Initialize the REG_VFI mailbox command
2137  * @mbox: pointer to lpfc mbox command to initialize.
2138  * @vport: vport associated with the VF.
2139  * @phys: BDE DMA bus address used to send the service parameters to the HBA.
2140  *
2141  * This routine initializes @mbox to all zeros and then fills in the mailbox
2142  * fields from @vport, and uses @buf as a DMAable buffer to send the vport's
2143  * fc service parameters to the HBA for this VFI. REG_VFI configures virtual
2144  * fabrics identified by VFI in the context of an FCF.
2145  **/
2146 void
2147 lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
2148 {
2149 	struct lpfc_mbx_reg_vfi *reg_vfi;
2150 	struct lpfc_hba *phba = vport->phba;
2151 	uint8_t bbscn_fabric = 0, bbscn_max = 0, bbscn_def = 0;
2152 
2153 	memset(mbox, 0, sizeof(*mbox));
2154 	reg_vfi = &mbox->u.mqe.un.reg_vfi;
2155 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
2156 	bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
2157 	bf_set(lpfc_reg_vfi_vfi, reg_vfi,
2158 	       phba->sli4_hba.vfi_ids[vport->vfi]);
2159 	bf_set(lpfc_reg_vfi_fcfi, reg_vfi, phba->fcf.fcfi);
2160 	bf_set(lpfc_reg_vfi_vpi, reg_vfi, phba->vpi_ids[vport->vpi]);
2161 	memcpy(reg_vfi->wwn, &vport->fc_portname, sizeof(struct lpfc_name));
2162 	reg_vfi->wwn[0] = cpu_to_le32(reg_vfi->wwn[0]);
2163 	reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
2164 	reg_vfi->e_d_tov = phba->fc_edtov;
2165 	reg_vfi->r_a_tov = phba->fc_ratov;
2166 	if (phys) {
2167 		reg_vfi->bde.addrHigh = putPaddrHigh(phys);
2168 		reg_vfi->bde.addrLow = putPaddrLow(phys);
2169 		reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
2170 		reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2171 	}
2172 	bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
2173 
2174 	/* Only FC supports upd bit */
2175 	if ((phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) &&
2176 	    (vport->fc_flag & FC_VFI_REGISTERED) &&
2177 	    (!phba->fc_topology_changed))
2178 		bf_set(lpfc_reg_vfi_upd, reg_vfi, 1);
2179 
2180 	bf_set(lpfc_reg_vfi_bbcr, reg_vfi, 0);
2181 	bf_set(lpfc_reg_vfi_bbscn, reg_vfi, 0);
2182 	bbscn_fabric = (phba->fc_fabparam.cmn.bbRcvSizeMsb >> 4) & 0xF;
2183 
2184 	if (phba->bbcredit_support && phba->cfg_enable_bbcr  &&
2185 	    bbscn_fabric != 0) {
2186 		bbscn_max = bf_get(lpfc_bbscn_max,
2187 				   &phba->sli4_hba.bbscn_params);
2188 		if (bbscn_fabric <= bbscn_max) {
2189 			bbscn_def = bf_get(lpfc_bbscn_def,
2190 					   &phba->sli4_hba.bbscn_params);
2191 
2192 			if (bbscn_fabric > bbscn_def)
2193 				bf_set(lpfc_reg_vfi_bbscn, reg_vfi,
2194 				       bbscn_fabric);
2195 			else
2196 				bf_set(lpfc_reg_vfi_bbscn, reg_vfi, bbscn_def);
2197 
2198 			bf_set(lpfc_reg_vfi_bbcr, reg_vfi, 1);
2199 		}
2200 	}
2201 	lpfc_printf_vlog(vport, KERN_INFO, LOG_MBOX,
2202 			"3134 Register VFI, mydid:x%x, fcfi:%d, "
2203 			" vfi:%d, vpi:%d, fc_pname:%x%x fc_flag:x%x"
2204 			" port_state:x%x topology chg:%d bbscn_fabric :%d\n",
2205 			vport->fc_myDID,
2206 			phba->fcf.fcfi,
2207 			phba->sli4_hba.vfi_ids[vport->vfi],
2208 			phba->vpi_ids[vport->vpi],
2209 			reg_vfi->wwn[0], reg_vfi->wwn[1], vport->fc_flag,
2210 			vport->port_state, phba->fc_topology_changed,
2211 			bbscn_fabric);
2212 }
2213 
2214 /**
2215  * lpfc_init_vpi - Initialize the INIT_VPI mailbox command
2216  * @phba: pointer to the hba structure to init the VPI for.
2217  * @mbox: pointer to lpfc mbox command to initialize.
2218  * @vpi: VPI to be initialized.
2219  *
2220  * The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
2221  * command to activate a virtual N_Port. The HBA assigns a MAC address to use
2222  * with the virtual N Port.  The SLI Host issues this command before issuing a
2223  * FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
2224  * successful virtual NPort login.
2225  **/
2226 void
2227 lpfc_init_vpi(struct lpfc_hba *phba, struct lpfcMboxq *mbox, uint16_t vpi)
2228 {
2229 	memset(mbox, 0, sizeof(*mbox));
2230 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
2231 	bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi,
2232 	       phba->vpi_ids[vpi]);
2233 	bf_set(lpfc_init_vpi_vfi, &mbox->u.mqe.un.init_vpi,
2234 	       phba->sli4_hba.vfi_ids[phba->pport->vfi]);
2235 }
2236 
2237 /**
2238  * lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
2239  * @mbox: pointer to lpfc mbox command to initialize.
2240  * @vport: vport associated with the VF.
2241  *
2242  * The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
2243  * (logical NPort) into the inactive state. The SLI Host must have logged out
2244  * and unregistered all remote N_Ports to abort any activity on the virtual
2245  * fabric. The SLI Port posts the mailbox response after marking the virtual
2246  * fabric inactive.
2247  **/
2248 void
2249 lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
2250 {
2251 	memset(mbox, 0, sizeof(*mbox));
2252 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
2253 	bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi,
2254 	       vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2255 }
2256 
2257 /**
2258  * lpfc_sli4_dump_cfg_rg23 - Dump sli4 port config region 23
2259  * @phba: pointer to the hba structure containing.
2260  * @mbox: pointer to lpfc mbox command to initialize.
2261  *
2262  * This function create a SLI4 dump mailbox command to dump configure
2263  * region 23.
2264  **/
2265 int
2266 lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2267 {
2268 	struct lpfc_dmabuf *mp = NULL;
2269 	MAILBOX_t *mb;
2270 
2271 	memset(mbox, 0, sizeof(*mbox));
2272 	mb = &mbox->u.mb;
2273 
2274 	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2275 	if (mp)
2276 		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2277 
2278 	if (!mp || !mp->virt) {
2279 		kfree(mp);
2280 		/* dump config region 23 failed to allocate memory */
2281 		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2282 			"2569 lpfc dump config region 23: memory"
2283 			" allocation failed\n");
2284 		return 1;
2285 	}
2286 
2287 	memset(mp->virt, 0, LPFC_BPL_SIZE);
2288 	INIT_LIST_HEAD(&mp->list);
2289 
2290 	/* save address for completion */
2291 	mbox->ctx_buf = (uint8_t *)mp;
2292 
2293 	mb->mbxCommand = MBX_DUMP_MEMORY;
2294 	mb->un.varDmp.type = DMP_NV_PARAMS;
2295 	mb->un.varDmp.region_id = DMP_REGION_23;
2296 	mb->un.varDmp.sli4_length = DMP_RGN23_SIZE;
2297 	mb->un.varWords[3] = putPaddrLow(mp->phys);
2298 	mb->un.varWords[4] = putPaddrHigh(mp->phys);
2299 	return 0;
2300 }
2301 
2302 static void
2303 lpfc_mbx_cmpl_rdp_link_stat(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2304 {
2305 	MAILBOX_t *mb;
2306 	int rc = FAILURE;
2307 	struct lpfc_rdp_context *rdp_context =
2308 			(struct lpfc_rdp_context *)(mboxq->ctx_ndlp);
2309 
2310 	mb = &mboxq->u.mb;
2311 	if (mb->mbxStatus)
2312 		goto mbx_failed;
2313 
2314 	memcpy(&rdp_context->link_stat, &mb->un.varRdLnk, sizeof(READ_LNK_VAR));
2315 
2316 	rc = SUCCESS;
2317 
2318 mbx_failed:
2319 	lpfc_sli4_mbox_cmd_free(phba, mboxq);
2320 	rdp_context->cmpl(phba, rdp_context, rc);
2321 }
2322 
2323 static void
2324 lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2325 {
2326 	struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)mbox->ctx_buf;
2327 	struct lpfc_rdp_context *rdp_context =
2328 			(struct lpfc_rdp_context *)(mbox->ctx_ndlp);
2329 
2330 	if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
2331 		goto error_mbuf_free;
2332 
2333 	lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
2334 				DMP_SFF_PAGE_A2_SIZE);
2335 
2336 	/* We don't need dma buffer for link stat. */
2337 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
2338 	kfree(mp);
2339 
2340 	memset(mbox, 0, sizeof(*mbox));
2341 	lpfc_read_lnk_stat(phba, mbox);
2342 	mbox->vport = rdp_context->ndlp->vport;
2343 	mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat;
2344 	mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
2345 	if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED)
2346 		goto error_cmd_free;
2347 
2348 	return;
2349 
2350 error_mbuf_free:
2351 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
2352 	kfree(mp);
2353 error_cmd_free:
2354 	lpfc_sli4_mbox_cmd_free(phba, mbox);
2355 	rdp_context->cmpl(phba, rdp_context, FAILURE);
2356 }
2357 
2358 void
2359 lpfc_mbx_cmpl_rdp_page_a0(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2360 {
2361 	int rc;
2362 	struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(mbox->ctx_buf);
2363 	struct lpfc_rdp_context *rdp_context =
2364 			(struct lpfc_rdp_context *)(mbox->ctx_ndlp);
2365 
2366 	if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
2367 		goto error;
2368 
2369 	lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0,
2370 				DMP_SFF_PAGE_A0_SIZE);
2371 
2372 	memset(mbox, 0, sizeof(*mbox));
2373 
2374 	memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE);
2375 	INIT_LIST_HEAD(&mp->list);
2376 
2377 	/* save address for completion */
2378 	mbox->ctx_buf = mp;
2379 	mbox->vport = rdp_context->ndlp->vport;
2380 
2381 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
2382 	bf_set(lpfc_mbx_memory_dump_type3_type,
2383 		&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
2384 	bf_set(lpfc_mbx_memory_dump_type3_link,
2385 		&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
2386 	bf_set(lpfc_mbx_memory_dump_type3_page_no,
2387 		&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2);
2388 	bf_set(lpfc_mbx_memory_dump_type3_length,
2389 		&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE);
2390 	mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
2391 	mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
2392 
2393 	mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a2;
2394 	mbox->ctx_ndlp = (struct lpfc_rdp_context *)rdp_context;
2395 	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2396 	if (rc == MBX_NOT_FINISHED)
2397 		goto error;
2398 
2399 	return;
2400 
2401 error:
2402 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
2403 	kfree(mp);
2404 	lpfc_sli4_mbox_cmd_free(phba, mbox);
2405 	rdp_context->cmpl(phba, rdp_context, FAILURE);
2406 }
2407 
2408 
2409 /*
2410  * lpfc_sli4_dump_sfp_pagea0 - Dump sli4 read SFP Diagnostic.
2411  * @phba: pointer to the hba structure containing.
2412  * @mbox: pointer to lpfc mbox command to initialize.
2413  *
2414  * This function create a SLI4 dump mailbox command to dump configure
2415  * type 3 page 0xA0.
2416  */
2417 int
2418 lpfc_sli4_dump_page_a0(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2419 {
2420 	struct lpfc_dmabuf *mp = NULL;
2421 
2422 	memset(mbox, 0, sizeof(*mbox));
2423 
2424 	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2425 	if (mp)
2426 		mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2427 	if (!mp || !mp->virt) {
2428 		kfree(mp);
2429 		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2430 			"3569 dump type 3 page 0xA0 allocation failed\n");
2431 		return 1;
2432 	}
2433 
2434 	memset(mp->virt, 0, LPFC_BPL_SIZE);
2435 	INIT_LIST_HEAD(&mp->list);
2436 
2437 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
2438 	/* save address for completion */
2439 	mbox->ctx_buf = mp;
2440 
2441 	bf_set(lpfc_mbx_memory_dump_type3_type,
2442 		&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
2443 	bf_set(lpfc_mbx_memory_dump_type3_link,
2444 		&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
2445 	bf_set(lpfc_mbx_memory_dump_type3_page_no,
2446 		&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A0);
2447 	bf_set(lpfc_mbx_memory_dump_type3_length,
2448 		&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE);
2449 	mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
2450 	mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
2451 
2452 	return 0;
2453 }
2454 
2455 /**
2456  * lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
2457  * @phba: pointer to the hba structure containing the FCF index and RQ ID.
2458  * @mbox: pointer to lpfc mbox command to initialize.
2459  *
2460  * The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
2461  * SLI Host uses the command to activate an FCF after it has acquired FCF
2462  * information via a READ_FCF mailbox command. This mailbox command also is used
2463  * to indicate where received unsolicited frames from this FCF will be sent. By
2464  * default this routine will set up the FCF to forward all unsolicited frames
2465  * the the RQ ID passed in the @phba. This can be overridden by the caller for
2466  * more complicated setups.
2467  **/
2468 void
2469 lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2470 {
2471 	struct lpfc_mbx_reg_fcfi *reg_fcfi;
2472 
2473 	memset(mbox, 0, sizeof(*mbox));
2474 	reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
2475 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
2476 	if (phba->nvmet_support == 0) {
2477 		bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi,
2478 		       phba->sli4_hba.hdr_rq->queue_id);
2479 		/* Match everything - rq_id0 */
2480 		bf_set(lpfc_reg_fcfi_type_match0, reg_fcfi, 0);
2481 		bf_set(lpfc_reg_fcfi_type_mask0, reg_fcfi, 0);
2482 		bf_set(lpfc_reg_fcfi_rctl_match0, reg_fcfi, 0);
2483 		bf_set(lpfc_reg_fcfi_rctl_mask0, reg_fcfi, 0);
2484 
2485 		bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
2486 
2487 		/* addr mode is bit wise inverted value of fcf addr_mode */
2488 		bf_set(lpfc_reg_fcfi_mam, reg_fcfi,
2489 		       (~phba->fcf.addr_mode) & 0x3);
2490 	} else {
2491 		/* This is ONLY for NVMET MRQ == 1 */
2492 		if (phba->cfg_nvmet_mrq != 1)
2493 			return;
2494 
2495 		bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi,
2496 		       phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id);
2497 		/* Match type FCP - rq_id0 */
2498 		bf_set(lpfc_reg_fcfi_type_match0, reg_fcfi, FC_TYPE_FCP);
2499 		bf_set(lpfc_reg_fcfi_type_mask0, reg_fcfi, 0xff);
2500 		bf_set(lpfc_reg_fcfi_rctl_match0, reg_fcfi,
2501 		       FC_RCTL_DD_UNSOL_CMD);
2502 
2503 		bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi,
2504 		       phba->sli4_hba.hdr_rq->queue_id);
2505 		/* Match everything else - rq_id1 */
2506 		bf_set(lpfc_reg_fcfi_type_match1, reg_fcfi, 0);
2507 		bf_set(lpfc_reg_fcfi_type_mask1, reg_fcfi, 0);
2508 		bf_set(lpfc_reg_fcfi_rctl_match1, reg_fcfi, 0);
2509 		bf_set(lpfc_reg_fcfi_rctl_mask1, reg_fcfi, 0);
2510 	}
2511 	bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
2512 	bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
2513 	bf_set(lpfc_reg_fcfi_info_index, reg_fcfi,
2514 	       phba->fcf.current_rec.fcf_indx);
2515 	if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
2516 		bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
2517 		bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
2518 		       phba->fcf.current_rec.vlan_id);
2519 	}
2520 }
2521 
2522 /**
2523  * lpfc_reg_fcfi_mrq - Initialize the REG_FCFI_MRQ mailbox command
2524  * @phba: pointer to the hba structure containing the FCF index and RQ ID.
2525  * @mbox: pointer to lpfc mbox command to initialize.
2526  * @mode: 0 to register FCFI, 1 to register MRQs
2527  *
2528  * The REG_FCFI_MRQ mailbox command supports Fibre Channel Forwarders (FCFs).
2529  * The SLI Host uses the command to activate an FCF after it has acquired FCF
2530  * information via a READ_FCF mailbox command. This mailbox command also is used
2531  * to indicate where received unsolicited frames from this FCF will be sent. By
2532  * default this routine will set up the FCF to forward all unsolicited frames
2533  * the the RQ ID passed in the @phba. This can be overridden by the caller for
2534  * more complicated setups.
2535  **/
2536 void
2537 lpfc_reg_fcfi_mrq(struct lpfc_hba *phba, struct lpfcMboxq *mbox, int mode)
2538 {
2539 	struct lpfc_mbx_reg_fcfi_mrq *reg_fcfi;
2540 
2541 	/* This is ONLY for MRQ */
2542 	if (phba->cfg_nvmet_mrq <= 1)
2543 		return;
2544 
2545 	memset(mbox, 0, sizeof(*mbox));
2546 	reg_fcfi = &mbox->u.mqe.un.reg_fcfi_mrq;
2547 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI_MRQ);
2548 	if (mode == 0) {
2549 		bf_set(lpfc_reg_fcfi_mrq_info_index, reg_fcfi,
2550 		       phba->fcf.current_rec.fcf_indx);
2551 		if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
2552 			bf_set(lpfc_reg_fcfi_mrq_vv, reg_fcfi, 1);
2553 			bf_set(lpfc_reg_fcfi_mrq_vlan_tag, reg_fcfi,
2554 			       phba->fcf.current_rec.vlan_id);
2555 		}
2556 		return;
2557 	}
2558 
2559 	bf_set(lpfc_reg_fcfi_mrq_rq_id0, reg_fcfi,
2560 	       phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id);
2561 	/* Match NVME frames of type FCP (protocol NVME) - rq_id0 */
2562 	bf_set(lpfc_reg_fcfi_mrq_type_match0, reg_fcfi, FC_TYPE_FCP);
2563 	bf_set(lpfc_reg_fcfi_mrq_type_mask0, reg_fcfi, 0xff);
2564 	bf_set(lpfc_reg_fcfi_mrq_rctl_match0, reg_fcfi, FC_RCTL_DD_UNSOL_CMD);
2565 	bf_set(lpfc_reg_fcfi_mrq_rctl_mask0, reg_fcfi, 0xff);
2566 	bf_set(lpfc_reg_fcfi_mrq_ptc0, reg_fcfi, 1);
2567 	bf_set(lpfc_reg_fcfi_mrq_pt0, reg_fcfi, 1);
2568 
2569 	bf_set(lpfc_reg_fcfi_mrq_policy, reg_fcfi, 3); /* NVME connection id */
2570 	bf_set(lpfc_reg_fcfi_mrq_mode, reg_fcfi, 1);
2571 	bf_set(lpfc_reg_fcfi_mrq_filter, reg_fcfi, 1); /* rq_id0 */
2572 	bf_set(lpfc_reg_fcfi_mrq_npairs, reg_fcfi, phba->cfg_nvmet_mrq);
2573 
2574 	bf_set(lpfc_reg_fcfi_mrq_rq_id1, reg_fcfi,
2575 	       phba->sli4_hba.hdr_rq->queue_id);
2576 	/* Match everything - rq_id1 */
2577 	bf_set(lpfc_reg_fcfi_mrq_type_match1, reg_fcfi, 0);
2578 	bf_set(lpfc_reg_fcfi_mrq_type_mask1, reg_fcfi, 0);
2579 	bf_set(lpfc_reg_fcfi_mrq_rctl_match1, reg_fcfi, 0);
2580 	bf_set(lpfc_reg_fcfi_mrq_rctl_mask1, reg_fcfi, 0);
2581 
2582 	bf_set(lpfc_reg_fcfi_mrq_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
2583 	bf_set(lpfc_reg_fcfi_mrq_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
2584 }
2585 
2586 /**
2587  * lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
2588  * @mbox: pointer to lpfc mbox command to initialize.
2589  * @fcfi: FCFI to be unregistered.
2590  *
2591  * The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
2592  * The SLI Host uses the command to inactivate an FCFI.
2593  **/
2594 void
2595 lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
2596 {
2597 	memset(mbox, 0, sizeof(*mbox));
2598 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
2599 	bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
2600 }
2601 
2602 /**
2603  * lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
2604  * @mbox: pointer to lpfc mbox command to initialize.
2605  * @ndlp: The nodelist structure that describes the RPI to resume.
2606  *
2607  * The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
2608  * link event.
2609  **/
2610 void
2611 lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
2612 {
2613 	struct lpfc_hba *phba = ndlp->phba;
2614 	struct lpfc_mbx_resume_rpi *resume_rpi;
2615 
2616 	memset(mbox, 0, sizeof(*mbox));
2617 	resume_rpi = &mbox->u.mqe.un.resume_rpi;
2618 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
2619 	bf_set(lpfc_resume_rpi_index, resume_rpi,
2620 	       phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2621 	bf_set(lpfc_resume_rpi_ii, resume_rpi, RESUME_INDEX_RPI);
2622 	resume_rpi->event_tag = ndlp->phba->fc_eventTag;
2623 }
2624 
2625 /**
2626  * lpfc_supported_pages - Initialize the PORT_CAPABILITIES supported pages
2627  *                        mailbox command.
2628  * @mbox: pointer to lpfc mbox command to initialize.
2629  *
2630  * The PORT_CAPABILITIES supported pages mailbox command is issued to
2631  * retrieve the particular feature pages supported by the port.
2632  **/
2633 void
2634 lpfc_supported_pages(struct lpfcMboxq *mbox)
2635 {
2636 	struct lpfc_mbx_supp_pages *supp_pages;
2637 
2638 	memset(mbox, 0, sizeof(*mbox));
2639 	supp_pages = &mbox->u.mqe.un.supp_pages;
2640 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES);
2641 	bf_set(cpn, supp_pages, LPFC_SUPP_PAGES);
2642 }
2643 
2644 /**
2645  * lpfc_pc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params mbox cmd.
2646  * @mbox: pointer to lpfc mbox command to initialize.
2647  *
2648  * The PORT_CAPABILITIES SLI4 parameters mailbox command is issued to
2649  * retrieve the particular SLI4 features supported by the port.
2650  **/
2651 void
2652 lpfc_pc_sli4_params(struct lpfcMboxq *mbox)
2653 {
2654 	struct lpfc_mbx_pc_sli4_params *sli4_params;
2655 
2656 	memset(mbox, 0, sizeof(*mbox));
2657 	sli4_params = &mbox->u.mqe.un.sli4_params;
2658 	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_PORT_CAPABILITIES);
2659 	bf_set(cpn, sli4_params, LPFC_SLI4_PARAMETERS);
2660 }
2661