1	/*******************************************************************
2	* This file is part of the Emulex Linux Device Driver for *
3	* Fibre Channel Host Bus Adapters. *
4	* Copyright (C) 2017-2024 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_mbox_rsrc_prep - Prepare a mailbox with DMA buffer memory.
48	* @phba: pointer to lpfc hba data structure.
49	* @mbox: pointer to the driver internal queue element for mailbox command.
50	*
51	* A mailbox command consists of the pool memory for the command, @mbox, and
52	* one or more DMA buffers for the data transfer. This routine provides
53	* a standard framework for allocating the dma buffer and assigning to the
54	* @mbox. Callers should cleanup the mbox with a call to
55	* lpfc_mbox_rsrc_cleanup.
56	*
57	* The lpfc_mbuf_alloc routine acquires the hbalock so the caller is
58	* responsible to ensure the hbalock is released. Also note that the
59	* driver design is a single dmabuf/mbuf per mbox in the ctx_buf.
60	*
61	**/
62	int
63	lpfc_mbox_rsrc_prep(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
64	{
65	struct lpfc_dmabuf *mp;
66
67	mp = kmalloc(size: sizeof(*mp), GFP_KERNEL);
68	if (!mp)
69	return -ENOMEM;
70
71	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
72	if (!mp->virt) {
73	kfree(objp: mp);
74	return -ENOMEM;
75	}
76
77	memset(mp->virt, 0, LPFC_BPL_SIZE);
78
79	/* Initialization only. Driver does not use a list of dmabufs. */
80	INIT_LIST_HEAD(list: &mp->list);
81	mbox->ctx_buf = mp;
82	return 0;
83	}
84
85	/**
86	* lpfc_mbox_rsrc_cleanup - Free the mailbox DMA buffer and virtual memory.
87	* @phba: pointer to lpfc hba data structure.
88	* @mbox: pointer to the driver internal queue element for mailbox command.
89	* @locked: value that indicates if the hbalock is held (1) or not (0).
90	*
91	* A mailbox command consists of the pool memory for the command, @mbox, and
92	* possibly a DMA buffer for the data transfer. This routine provides
93	* a standard framework for releasing any dma buffers and freeing all
94	* memory resources in it as well as releasing the @mbox back to the @phba pool.
95	* Callers should use this routine for cleanup for all mailboxes prepped with
96	* lpfc_mbox_rsrc_prep.
97	*
98	**/
99	void
100	lpfc_mbox_rsrc_cleanup(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
101	enum lpfc_mbox_ctx locked)
102	{
103	struct lpfc_dmabuf *mp;
104
105	mp = mbox->ctx_buf;
106	mbox->ctx_buf = NULL;
107
108	/* Release the generic BPL buffer memory. */
109	if (mp) {
110	if (locked == MBOX_THD_LOCKED)
111	__lpfc_mbuf_free(phba, mp->virt, mp->phys);
112	else
113	lpfc_mbuf_free(phba, mp->virt, mp->phys);
114	kfree(objp: mp);
115	}
116
117	mempool_free(element: mbox, pool: phba->mbox_mem_pool);
118	}
119
120	/**
121	* lpfc_dump_static_vport - Dump HBA's static vport information.
122	* @phba: pointer to lpfc hba data structure.
123	* @pmb: pointer to the driver internal queue element for mailbox command.
124	* @offset: offset for dumping vport info.
125	*
126	* The dump mailbox command provides a method for the device driver to obtain
127	* various types of information from the HBA device.
128	*
129	* This routine prepares the mailbox command for dumping list of static
130	* vports to be created.
131	**/
132	int
133	lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
134	uint16_t offset)
135	{
136	MAILBOX_t *mb;
137	struct lpfc_dmabuf *mp;
138	int rc;
139
140	mb = &pmb->u.mb;
141
142	/* Setup to dump vport info region */
143	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
144	mb->mbxCommand = MBX_DUMP_MEMORY;
145	mb->un.varDmp.type = DMP_NV_PARAMS;
146	mb->un.varDmp.entry_index = offset;
147	mb->un.varDmp.region_id = DMP_REGION_VPORT;
148	mb->mbxOwner = OWN_HOST;
149
150	/* For SLI3 HBAs data is embedded in mailbox */
151	if (phba->sli_rev != LPFC_SLI_REV4) {
152	mb->un.varDmp.cv = 1;
153	mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t);
154	return 0;
155	}
156
157	rc = lpfc_mbox_rsrc_prep(phba, mbox: pmb);
158	if (rc) {
159	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
160	"2605 %s: memory allocation failed\n",
161	__func__);
162	return 1;
163	}
164
165	mp = pmb->ctx_buf;
166	mb->un.varWords[3] = putPaddrLow(mp->phys);
167	mb->un.varWords[4] = putPaddrHigh(mp->phys);
168	mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);
169
170	return 0;
171	}
172
173	/**
174	* lpfc_down_link - Bring down HBAs link.
175	* @phba: pointer to lpfc hba data structure.
176	* @pmb: pointer to the driver internal queue element for mailbox command.
177	*
178	* This routine prepares a mailbox command to bring down HBA link.
179	**/
180	void
181	lpfc_down_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
182	{
183	MAILBOX_t *mb;
184	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
185	mb = &pmb->u.mb;
186	mb->mbxCommand = MBX_DOWN_LINK;
187	mb->mbxOwner = OWN_HOST;
188	}
189
190	/**
191	* lpfc_dump_mem - Prepare a mailbox command for reading a region.
192	* @phba: pointer to lpfc hba data structure.
193	* @pmb: pointer to the driver internal queue element for mailbox command.
194	* @offset: offset into the region.
195	* @region_id: config region id.
196	*
197	* The dump mailbox command provides a method for the device driver to obtain
198	* various types of information from the HBA device.
199	*
200	* This routine prepares the mailbox command for dumping HBA's config region.
201	**/
202	void
203	lpfc_dump_mem(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint16_t offset,
204	uint16_t region_id)
205	{
206	MAILBOX_t *mb;
207
208	mb = &pmb->u.mb;
209
210	/* Setup to dump VPD region */
211	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
212	mb->mbxCommand = MBX_DUMP_MEMORY;
213	mb->un.varDmp.cv = 1;
214	mb->un.varDmp.type = DMP_NV_PARAMS;
215	mb->un.varDmp.entry_index = offset;
216	mb->un.varDmp.region_id = region_id;
217	mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
218	mb->un.varDmp.co = 0;
219	mb->un.varDmp.resp_offset = 0;
220	mb->mbxOwner = OWN_HOST;
221	return;
222	}
223
224	/**
225	* lpfc_dump_wakeup_param - Prepare mailbox command for retrieving wakeup params
226	* @phba: pointer to lpfc hba data structure.
227	* @pmb: pointer to the driver internal queue element for mailbox command.
228	*
229	* This function create a dump memory mailbox command to dump wake up
230	* parameters.
231	*/
232	void
233	lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
234	{
235	MAILBOX_t *mb;
236
237	mb = &pmb->u.mb;
238
239	/* Setup to dump VPD region */
240	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
241	mb->mbxCommand = MBX_DUMP_MEMORY;
242	mb->mbxOwner = OWN_HOST;
243	mb->un.varDmp.cv = 1;
244	mb->un.varDmp.type = DMP_NV_PARAMS;
245	if (phba->sli_rev < LPFC_SLI_REV4)
246	mb->un.varDmp.entry_index = 0;
247	mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
248	mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
249	mb->un.varDmp.co = 0;
250	mb->un.varDmp.resp_offset = 0;
251	return;
252	}
253
254	/**
255	* lpfc_read_nv - Prepare a mailbox command for reading HBA's NVRAM param
256	* @phba: pointer to lpfc hba data structure.
257	* @pmb: pointer to the driver internal queue element for mailbox command.
258	*
259	* The read NVRAM mailbox command returns the HBA's non-volatile parameters
260	* that are used as defaults when the Fibre Channel link is brought on-line.
261	*
262	* This routine prepares the mailbox command for reading information stored
263	* in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
264	**/
265	void
266	lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
267	{
268	MAILBOX_t *mb;
269
270	mb = &pmb->u.mb;
271	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
272	mb->mbxCommand = MBX_READ_NV;
273	mb->mbxOwner = OWN_HOST;
274	return;
275	}
276
277	/**
278	* lpfc_config_async - Prepare a mailbox command for enabling HBA async event
279	* @phba: pointer to lpfc hba data structure.
280	* @pmb: pointer to the driver internal queue element for mailbox command.
281	* @ring: ring number for the asynchronous event to be configured.
282	*
283	* The asynchronous event enable mailbox command is used to enable the
284	* asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
285	* specifies the default ring to which events are posted.
286	*
287	* This routine prepares the mailbox command for enabling HBA asynchronous
288	* event support on a IOCB ring.
289	**/
290	void
291	lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
292	uint32_t ring)
293	{
294	MAILBOX_t *mb;
295
296	mb = &pmb->u.mb;
297	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
298	mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
299	mb->un.varCfgAsyncEvent.ring = ring;
300	mb->mbxOwner = OWN_HOST;
301	return;
302	}
303
304	/**
305	* lpfc_heart_beat - Prepare a mailbox command for heart beat
306	* @phba: pointer to lpfc hba data structure.
307	* @pmb: pointer to the driver internal queue element for mailbox command.
308	*
309	* The heart beat mailbox command is used to detect an unresponsive HBA, which
310	* is defined as any device where no error attention is sent and both mailbox
311	* and rings are not processed.
312	*
313	* This routine prepares the mailbox command for issuing a heart beat in the
314	* form of mailbox command to the HBA. The timely completion of the heart
315	* beat mailbox command indicates the health of the HBA.
316	**/
317	void
318	lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
319	{
320	MAILBOX_t *mb;
321
322	mb = &pmb->u.mb;
323	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
324	mb->mbxCommand = MBX_HEARTBEAT;
325	mb->mbxOwner = OWN_HOST;
326	return;
327	}
328
329	/**
330	* lpfc_read_topology - Prepare a mailbox command for reading HBA topology
331	* @phba: pointer to lpfc hba data structure.
332	* @pmb: pointer to the driver internal queue element for mailbox command.
333	* @mp: DMA buffer memory for reading the link attention information into.
334	*
335	* The read topology mailbox command is issued to read the link topology
336	* information indicated by the HBA port when the Link Event bit of the Host
337	* Attention (HSTATT) register is set to 1 (For SLI-3) or when an FC Link
338	* Attention ACQE is received from the port (For SLI-4). A Link Event
339	* Attention occurs based on an exception detected at the Fibre Channel link
340	* interface.
341	*
342	* This routine prepares the mailbox command for reading HBA link topology
343	* information. A DMA memory has been set aside and address passed to the
344	* HBA through @mp for the HBA to DMA link attention information into the
345	* memory as part of the execution of the mailbox command.
346	*
347	* Return codes
348	* 0 - Success (currently always return 0)
349	**/
350	int
351	lpfc_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
352	struct lpfc_dmabuf *mp)
353	{
354	MAILBOX_t *mb;
355
356	mb = &pmb->u.mb;
357	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
358
359	INIT_LIST_HEAD(list: &mp->list);
360	mb->mbxCommand = MBX_READ_TOPOLOGY;
361	mb->un.varReadTop.lilpBde64.tus.f.bdeSize = LPFC_ALPA_MAP_SIZE;
362	mb->un.varReadTop.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
363	mb->un.varReadTop.lilpBde64.addrLow = putPaddrLow(mp->phys);
364
365	/* Save address for later completion and set the owner to host so that
366	* the FW knows this mailbox is available for processing.
367	*/
368	pmb->ctx_buf = mp;
369	mb->mbxOwner = OWN_HOST;
370	return (0);
371	}
372
373	/**
374	* lpfc_clear_la - Prepare a mailbox command for clearing HBA link attention
375	* @phba: pointer to lpfc hba data structure.
376	* @pmb: pointer to the driver internal queue element for mailbox command.
377	*
378	* The clear link attention mailbox command is issued to clear the link event
379	* attention condition indicated by the Link Event bit of the Host Attention
380	* (HSTATT) register. The link event attention condition is cleared only if
381	* the event tag specified matches that of the current link event counter.
382	* The current event tag is read using the read link attention event mailbox
383	* command.
384	*
385	* This routine prepares the mailbox command for clearing HBA link attention
386	* information.
387	**/
388	void
389	lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
390	{
391	MAILBOX_t *mb;
392
393	mb = &pmb->u.mb;
394	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
395
396	mb->un.varClearLA.eventTag = phba->fc_eventTag;
397	mb->mbxCommand = MBX_CLEAR_LA;
398	mb->mbxOwner = OWN_HOST;
399	return;
400	}
401
402	/**
403	* lpfc_config_link - Prepare a mailbox command for configuring link on a HBA
404	* @phba: pointer to lpfc hba data structure.
405	* @pmb: pointer to the driver internal queue element for mailbox command.
406	*
407	* The configure link mailbox command is used before the initialize link
408	* mailbox command to override default value and to configure link-oriented
409	* parameters such as DID address and various timers. Typically, this
410	* command would be used after an F_Port login to set the returned DID address
411	* and the fabric timeout values. This command is not valid before a configure
412	* port command has configured the HBA port.
413	*
414	* This routine prepares the mailbox command for configuring link on a HBA.
415	**/
416	void
417	lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
418	{
419	struct lpfc_vport *vport = phba->pport;
420	MAILBOX_t *mb = &pmb->u.mb;
421	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
422
423	/* NEW_FEATURE
424	* SLI-2, Coalescing Response Feature.
425	*/
426	if (phba->cfg_cr_delay && (phba->sli_rev < LPFC_SLI_REV4)) {
427	mb->un.varCfgLnk.cr = 1;
428	mb->un.varCfgLnk.ci = 1;
429	mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
430	mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
431	}
432
433	mb->un.varCfgLnk.myId = vport->fc_myDID;
434	mb->un.varCfgLnk.edtov = phba->fc_edtov;
435	mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
436	mb->un.varCfgLnk.ratov = phba->fc_ratov;
437	mb->un.varCfgLnk.rttov = phba->fc_rttov;
438	mb->un.varCfgLnk.altov = phba->fc_altov;
439	mb->un.varCfgLnk.crtov = phba->fc_crtov;
440	mb->un.varCfgLnk.cscn = 0;
441	if (phba->bbcredit_support && phba->cfg_enable_bbcr) {
442	mb->un.varCfgLnk.cscn = 1;
443	mb->un.varCfgLnk.bbscn = bf_get(lpfc_bbscn_def,
444	&phba->sli4_hba.bbscn_params);
445	}
446
447	if (phba->cfg_ack0 && (phba->sli_rev < LPFC_SLI_REV4))
448	mb->un.varCfgLnk.ack0_enable = 1;
449
450	mb->mbxCommand = MBX_CONFIG_LINK;
451	mb->mbxOwner = OWN_HOST;
452	return;
453	}
454
455	/**
456	* lpfc_config_msi - Prepare a mailbox command for configuring msi-x
457	* @phba: pointer to lpfc hba data structure.
458	* @pmb: pointer to the driver internal queue element for mailbox command.
459	*
460	* The configure MSI-X mailbox command is used to configure the HBA's SLI-3
461	* MSI-X multi-message interrupt vector association to interrupt attention
462	* conditions.
463	*
464	* Return codes
465	* 0 - Success
466	* -EINVAL - Failure
467	**/
468	int
469	lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
470	{
471	MAILBOX_t *mb = &pmb->u.mb;
472	uint32_t attentionConditions[2];
473
474	/* Sanity check */
475	if (phba->cfg_use_msi != 2) {
476	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
477	"0475 Not configured for supporting MSI-X "
478	"cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
479	return -EINVAL;
480	}
481
482	if (phba->sli_rev < 3) {
483	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
484	"0476 HBA not supporting SLI-3 or later "
485	"SLI Revision: 0x%x\n", phba->sli_rev);
486	return -EINVAL;
487	}
488
489	/* Clear mailbox command fields */
490	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
491
492	/*
493	* SLI-3, Message Signaled Interrupt Feature.
494	*/
495
496	/* Multi-message attention configuration */
497	attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
498	HA_LATT | HA_MBATT);
499	attentionConditions[1] = 0;
500
501	mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
502	mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
503
504	/*
505	* Set up message number to HA bit association
506	*/
507	#ifdef __BIG_ENDIAN_BITFIELD
508	/* RA0 (FCP Ring) */
509	mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
510	/* RA1 (Other Protocol Extra Ring) */
511	mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
512	#else /* __LITTLE_ENDIAN_BITFIELD */
513	/* RA0 (FCP Ring) */
514	mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
515	/* RA1 (Other Protocol Extra Ring) */
516	mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
517	#endif
518	/* Multi-message interrupt autoclear configuration*/
519	mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
520	mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
521
522	/* For now, HBA autoclear does not work reliably, disable it */
523	mb->un.varCfgMSI.autoClearHA[0] = 0;
524	mb->un.varCfgMSI.autoClearHA[1] = 0;
525
526	/* Set command and owner bit */
527	mb->mbxCommand = MBX_CONFIG_MSI;
528	mb->mbxOwner = OWN_HOST;
529
530	return 0;
531	}
532
533	/**
534	* lpfc_init_link - Prepare a mailbox command for initialize link on a HBA
535	* @phba: pointer to lpfc hba data structure.
536	* @pmb: pointer to the driver internal queue element for mailbox command.
537	* @topology: the link topology for the link to be initialized to.
538	* @linkspeed: the link speed for the link to be initialized to.
539	*
540	* The initialize link mailbox command is used to initialize the Fibre
541	* Channel link. This command must follow a configure port command that
542	* establishes the mode of operation.
543	*
544	* This routine prepares the mailbox command for initializing link on a HBA
545	* with the specified link topology and speed.
546	**/
547	void
548	lpfc_init_link(struct lpfc_hba * phba,
549	LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
550	{
551	lpfc_vpd_t *vpd;
552	MAILBOX_t *mb;
553
554	mb = &pmb->u.mb;
555	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
556
557	switch (topology) {
558	case FLAGS_TOPOLOGY_MODE_LOOP_PT:
559	mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
560	mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
561	break;
562	case FLAGS_TOPOLOGY_MODE_PT_PT:
563	mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
564	break;
565	case FLAGS_TOPOLOGY_MODE_LOOP:
566	mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
567	break;
568	case FLAGS_TOPOLOGY_MODE_PT_LOOP:
569	mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
570	mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
571	break;
572	case FLAGS_LOCAL_LB:
573	mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
574	break;
575	}
576
577	/* Topology handling for ASIC_GEN_NUM 0xC and later */
578	if ((phba->sli4_hba.pc_sli4_params.sli_family == LPFC_SLI_INTF_FAMILY_G6 ||
579	phba->sli4_hba.pc_sli4_params.if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
580	!(phba->sli4_hba.pc_sli4_params.pls) &&
581	mb->un.varInitLnk.link_flags & FLAGS_TOPOLOGY_MODE_LOOP) {
582	mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
583	phba->cfg_topology = FLAGS_TOPOLOGY_MODE_PT_PT;
584	}
585
586	/* Enable asynchronous ABTS responses from firmware */
587	if (phba->sli_rev == LPFC_SLI_REV3 && !phba->cfg_fcp_wait_abts_rsp)
588	mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
589
590	/* NEW_FEATURE
591	* Setting up the link speed
592	*/
593	vpd = &phba->vpd;
594	if (vpd->rev.feaLevelHigh >= 0x02){
595	switch(linkspeed){
596	case LPFC_USER_LINK_SPEED_1G:
597	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
598	mb->un.varInitLnk.link_speed = LINK_SPEED_1G;
599	break;
600	case LPFC_USER_LINK_SPEED_2G:
601	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
602	mb->un.varInitLnk.link_speed = LINK_SPEED_2G;
603	break;
604	case LPFC_USER_LINK_SPEED_4G:
605	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
606	mb->un.varInitLnk.link_speed = LINK_SPEED_4G;
607	break;
608	case LPFC_USER_LINK_SPEED_8G:
609	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
610	mb->un.varInitLnk.link_speed = LINK_SPEED_8G;
611	break;
612	case LPFC_USER_LINK_SPEED_10G:
613	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
614	mb->un.varInitLnk.link_speed = LINK_SPEED_10G;
615	break;
616	case LPFC_USER_LINK_SPEED_16G:
617	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
618	mb->un.varInitLnk.link_speed = LINK_SPEED_16G;
619	break;
620	case LPFC_USER_LINK_SPEED_32G:
621	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
622	mb->un.varInitLnk.link_speed = LINK_SPEED_32G;
623	break;
624	case LPFC_USER_LINK_SPEED_64G:
625	mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED;
626	mb->un.varInitLnk.link_speed = LINK_SPEED_64G;
627	break;
628	case LPFC_USER_LINK_SPEED_AUTO:
629	default:
630	mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
631	break;
632	}
633
634	}
635	else
636	mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
637
638	mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
639	mb->mbxOwner = OWN_HOST;
640	mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
641	return;
642	}
643
644	/**
645	* lpfc_read_sparam - Prepare a mailbox command for reading HBA parameters
646	* @phba: pointer to lpfc hba data structure.
647	* @pmb: pointer to the driver internal queue element for mailbox command.
648	* @vpi: virtual N_Port identifier.
649	*
650	* The read service parameter mailbox command is used to read the HBA port
651	* service parameters. The service parameters are read into the buffer
652	* specified directly by a BDE in the mailbox command. These service
653	* parameters may then be used to build the payload of an N_Port/F_POrt
654	* login request and reply (LOGI/ACC).
655	*
656	* This routine prepares the mailbox command for reading HBA port service
657	* parameters. The DMA memory is allocated in this function and the addresses
658	* are populated into the mailbox command for the HBA to DMA the service
659	* parameters into.
660	*
661	* Return codes
662	* 0 - Success
663	* 1 - DMA memory allocation failed
664	**/
665	int
666	lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
667	{
668	struct lpfc_dmabuf *mp;
669	MAILBOX_t *mb;
670	int rc;
671
672	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
673
674	/* Get a buffer to hold the HBAs Service Parameters */
675	rc = lpfc_mbox_rsrc_prep(phba, mbox: pmb);
676	if (rc) {
677	lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
678	"0301 READ_SPARAM: no buffers\n");
679	return 1;
680	}
681
682	mp = pmb->ctx_buf;
683	mb = &pmb->u.mb;
684	mb->mbxOwner = OWN_HOST;
685	mb->mbxCommand = MBX_READ_SPARM64;
686	mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
687	mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
688	mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
689	if (phba->sli_rev >= LPFC_SLI_REV3)
690	mb->un.varRdSparm.vpi = phba->vpi_ids[vpi];
691
692	return (0);
693	}
694
695	/**
696	* lpfc_unreg_did - Prepare a mailbox command for unregistering DID
697	* @phba: pointer to lpfc hba data structure.
698	* @vpi: virtual N_Port identifier.
699	* @did: remote port identifier.
700	* @pmb: pointer to the driver internal queue element for mailbox command.
701	*
702	* The unregister DID mailbox command is used to unregister an N_Port/F_Port
703	* login for an unknown RPI by specifying the DID of a remote port. This
704	* command frees an RPI context in the HBA port. This has the effect of
705	* performing an implicit N_Port/F_Port logout.
706	*
707	* This routine prepares the mailbox command for unregistering a remote
708	* N_Port/F_Port (DID) login.
709	**/
710	void
711	lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
712	LPFC_MBOXQ_t * pmb)
713	{
714	MAILBOX_t *mb;
715
716	mb = &pmb->u.mb;
717	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
718
719	mb->un.varUnregDID.did = did;
720	mb->un.varUnregDID.vpi = vpi;
721	if ((vpi != 0xffff) &&
722	(phba->sli_rev == LPFC_SLI_REV4))
723	mb->un.varUnregDID.vpi = phba->vpi_ids[vpi];
724
725	mb->mbxCommand = MBX_UNREG_D_ID;
726	mb->mbxOwner = OWN_HOST;
727	return;
728	}
729
730	/**
731	* lpfc_read_config - Prepare a mailbox command for reading HBA configuration
732	* @phba: pointer to lpfc hba data structure.
733	* @pmb: pointer to the driver internal queue element for mailbox command.
734	*
735	* The read configuration mailbox command is used to read the HBA port
736	* configuration parameters. This mailbox command provides a method for
737	* seeing any parameters that may have changed via various configuration
738	* mailbox commands.
739	*
740	* This routine prepares the mailbox command for reading out HBA configuration
741	* parameters.
742	**/
743	void
744	lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
745	{
746	MAILBOX_t *mb;
747
748	mb = &pmb->u.mb;
749	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
750
751	mb->mbxCommand = MBX_READ_CONFIG;
752	mb->mbxOwner = OWN_HOST;
753	return;
754	}
755
756	/**
757	* lpfc_read_lnk_stat - Prepare a mailbox command for reading HBA link stats
758	* @phba: pointer to lpfc hba data structure.
759	* @pmb: pointer to the driver internal queue element for mailbox command.
760	*
761	* The read link status mailbox command is used to read the link status from
762	* the HBA. Link status includes all link-related error counters. These
763	* counters are maintained by the HBA and originated in the link hardware
764	* unit. Note that all of these counters wrap.
765	*
766	* This routine prepares the mailbox command for reading out HBA link status.
767	**/
768	void
769	lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
770	{
771	MAILBOX_t *mb;
772
773	mb = &pmb->u.mb;
774	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
775
776	mb->mbxCommand = MBX_READ_LNK_STAT;
777	mb->mbxOwner = OWN_HOST;
778	return;
779	}
780
781	/**
782	* lpfc_reg_rpi - Prepare a mailbox command for registering remote login
783	* @phba: pointer to lpfc hba data structure.
784	* @vpi: virtual N_Port identifier.
785	* @did: remote port identifier.
786	* @param: pointer to memory holding the server parameters.
787	* @pmb: pointer to the driver internal queue element for mailbox command.
788	* @rpi: the rpi to use in the registration (usually only used for SLI4.
789	*
790	* The registration login mailbox command is used to register an N_Port or
791	* F_Port login. This registration allows the HBA to cache the remote N_Port
792	* service parameters internally and thereby make the appropriate FC-2
793	* decisions. The remote port service parameters are handed off by the driver
794	* to the HBA using a descriptor entry that directly identifies a buffer in
795	* host memory. In exchange, the HBA returns an RPI identifier.
796	*
797	* This routine prepares the mailbox command for registering remote port login.
798	* The function allocates DMA buffer for passing the service parameters to the
799	* HBA with the mailbox command.
800	*
801	* Return codes
802	* 0 - Success
803	* 1 - DMA memory allocation failed
804	**/
805	int
806	lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
807	uint8_t *param, LPFC_MBOXQ_t *pmb, uint16_t rpi)
808	{
809	MAILBOX_t *mb = &pmb->u.mb;
810	uint8_t *sparam;
811	struct lpfc_dmabuf *mp;
812	int rc;
813
814	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
815
816	mb->un.varRegLogin.rpi = 0;
817	if (phba->sli_rev == LPFC_SLI_REV4)
818	mb->un.varRegLogin.rpi = phba->sli4_hba.rpi_ids[rpi];
819	if (phba->sli_rev >= LPFC_SLI_REV3)
820	mb->un.varRegLogin.vpi = phba->vpi_ids[vpi];
821	mb->un.varRegLogin.did = did;
822	mb->mbxOwner = OWN_HOST;
823
824	/* Get a buffer to hold NPorts Service Parameters */
825	rc = lpfc_mbox_rsrc_prep(phba, mbox: pmb);
826	if (rc) {
827	mb->mbxCommand = MBX_REG_LOGIN64;
828	/* REG_LOGIN: no buffers */
829	lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
830	"0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
831	"rpi x%x\n", vpi, did, rpi);
832	return 1;
833	}
834
835	/* Copy param's into a new buffer */
836	mp = pmb->ctx_buf;
837	sparam = mp->virt;
838	memcpy(sparam, param, sizeof (struct serv_parm));
839
840	/* Finish initializing the mailbox. */
841	mb->mbxCommand = MBX_REG_LOGIN64;
842	mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
843	mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
844	mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
845
846	return 0;
847	}
848
849	/**
850	* lpfc_unreg_login - Prepare a mailbox command for unregistering remote login
851	* @phba: pointer to lpfc hba data structure.
852	* @vpi: virtual N_Port identifier.
853	* @rpi: remote port identifier
854	* @pmb: pointer to the driver internal queue element for mailbox command.
855	*
856	* The unregistration login mailbox command is used to unregister an N_Port
857	* or F_Port login. This command frees an RPI context in the HBA. It has the
858	* effect of performing an implicit N_Port/F_Port logout.
859	*
860	* This routine prepares the mailbox command for unregistering remote port
861	* login.
862	*
863	* For SLI4 ports, the rpi passed to this function must be the physical
864	* rpi value, not the logical index.
865	**/
866	void
867	lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
868	LPFC_MBOXQ_t * pmb)
869	{
870	MAILBOX_t *mb;
871
872	mb = &pmb->u.mb;
873	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
874
875	mb->un.varUnregLogin.rpi = rpi;
876	mb->un.varUnregLogin.rsvd1 = 0;
877	if (phba->sli_rev >= LPFC_SLI_REV3)
878	mb->un.varUnregLogin.vpi = phba->vpi_ids[vpi];
879
880	mb->mbxCommand = MBX_UNREG_LOGIN;
881	mb->mbxOwner = OWN_HOST;
882
883	return;
884	}
885
886	/**
887	* lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA.
888	* @vport: pointer to a vport object.
889	*
890	* This routine sends mailbox command to unregister all active RPIs for
891	* a vport.
892	**/
893	void
894	lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
895	{
896	struct lpfc_hba *phba = vport->phba;
897	LPFC_MBOXQ_t *mbox;
898	int rc;
899
900	mbox = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
901	if (mbox) {
902	/*
903	* For SLI4 functions, the rpi field is overloaded for
904	* the vport context unreg all. This routine passes
905	* 0 for the rpi field in lpfc_unreg_login for compatibility
906	* with SLI3 and then overrides the rpi field with the
907	* expected value for SLI4.
908	*/
909	lpfc_unreg_login(phba, vpi: vport->vpi, rpi: phba->vpi_ids[vport->vpi],
910	pmb: mbox);
911	mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000;
912	mbox->vport = vport;
913	mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
914	mbox->ctx_ndlp = NULL;
915	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
916	if (rc == MBX_NOT_FINISHED)
917	mempool_free(element: mbox, pool: phba->mbox_mem_pool);
918	}
919	}
920
921	/**
922	* lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier
923	* @vport: pointer to a vport object.
924	* @pmb: pointer to the driver internal queue element for mailbox command.
925	*
926	* The registration vport identifier mailbox command is used to activate a
927	* virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
928	* N_Port_ID against the information in the selected virtual N_Port context
929	* block and marks it active to allow normal processing of IOCB commands and
930	* received unsolicited exchanges.
931	*
932	* This routine prepares the mailbox command for registering a virtual N_Port.
933	**/
934	void
935	lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
936	{
937	MAILBOX_t *mb = &pmb->u.mb;
938	struct lpfc_hba *phba = vport->phba;
939
940	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
941	/*
942	* Set the re-reg VPI bit for f/w to update the MAC address.
943	*/
944	if ((phba->sli_rev == LPFC_SLI_REV4) &&
945	!test_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag))
946	mb->un.varRegVpi.upd = 1;
947
948	mb->un.varRegVpi.vpi = phba->vpi_ids[vport->vpi];
949	mb->un.varRegVpi.sid = vport->fc_myDID;
950	if (phba->sli_rev == LPFC_SLI_REV4)
951	mb->un.varRegVpi.vfi = phba->sli4_hba.vfi_ids[vport->vfi];
952	else
953	mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
954	memcpy(mb->un.varRegVpi.wwn, &vport->fc_portname,
955	sizeof(struct lpfc_name));
956	mb->un.varRegVpi.wwn[0] = cpu_to_le32(mb->un.varRegVpi.wwn[0]);
957	mb->un.varRegVpi.wwn[1] = cpu_to_le32(mb->un.varRegVpi.wwn[1]);
958
959	mb->mbxCommand = MBX_REG_VPI;
960	mb->mbxOwner = OWN_HOST;
961	return;
962
963	}
964
965	/**
966	* lpfc_unreg_vpi - Prepare a mailbox command for unregistering vport id
967	* @phba: pointer to lpfc hba data structure.
968	* @vpi: virtual N_Port identifier.
969	* @pmb: pointer to the driver internal queue element for mailbox command.
970	*
971	* The unregistration vport identifier mailbox command is used to inactivate
972	* a virtual N_Port. The driver must have logged out and unregistered all
973	* remote N_Ports to abort any activity on the virtual N_Port. The HBA will
974	* unregisters any default RPIs associated with the specified vpi, aborting
975	* any active exchanges. The HBA will post the mailbox response after making
976	* the virtual N_Port inactive.
977	*
978	* This routine prepares the mailbox command for unregistering a virtual
979	* N_Port.
980	**/
981	void
982	lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
983	{
984	MAILBOX_t *mb = &pmb->u.mb;
985	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
986
987	if (phba->sli_rev == LPFC_SLI_REV3)
988	mb->un.varUnregVpi.vpi = phba->vpi_ids[vpi];
989	else if (phba->sli_rev >= LPFC_SLI_REV4)
990	mb->un.varUnregVpi.sli4_vpi = phba->vpi_ids[vpi];
991
992	mb->mbxCommand = MBX_UNREG_VPI;
993	mb->mbxOwner = OWN_HOST;
994	return;
995
996	}
997
998	/**
999	* lpfc_config_pcb_setup - Set up IOCB rings in the Port Control Block (PCB)
1000	* @phba: pointer to lpfc hba data structure.
1001	*
1002	* This routine sets up and initializes the IOCB rings in the Port Control
1003	* Block (PCB).
1004	**/
1005	static void
1006	lpfc_config_pcb_setup(struct lpfc_hba * phba)
1007	{
1008	struct lpfc_sli *psli = &phba->sli;
1009	struct lpfc_sli_ring *pring;
1010	PCB_t *pcbp = phba->pcb;
1011	dma_addr_t pdma_addr;
1012	uint32_t offset;
1013	uint32_t iocbCnt = 0;
1014	int i;
1015
1016	pcbp->maxRing = (psli->num_rings - 1);
1017
1018	for (i = 0; i < psli->num_rings; i++) {
1019	pring = &psli->sli3_ring[i];
1020
1021	pring->sli.sli3.sizeCiocb =
1022	phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE :
1023	SLI2_IOCB_CMD_SIZE;
1024	pring->sli.sli3.sizeRiocb =
1025	phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE :
1026	SLI2_IOCB_RSP_SIZE;
1027	/* A ring MUST have both cmd and rsp entries defined to be
1028	valid */
1029	if ((pring->sli.sli3.numCiocb == 0) ||
1030	(pring->sli.sli3.numRiocb == 0)) {
1031	pcbp->rdsc[i].cmdEntries = 0;
1032	pcbp->rdsc[i].rspEntries = 0;
1033	pcbp->rdsc[i].cmdAddrHigh = 0;
1034	pcbp->rdsc[i].rspAddrHigh = 0;
1035	pcbp->rdsc[i].cmdAddrLow = 0;
1036	pcbp->rdsc[i].rspAddrLow = 0;
1037	pring->sli.sli3.cmdringaddr = NULL;
1038	pring->sli.sli3.rspringaddr = NULL;
1039	continue;
1040	}
1041	/* Command ring setup for ring */
1042	pring->sli.sli3.cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
1043	pcbp->rdsc[i].cmdEntries = pring->sli.sli3.numCiocb;
1044
1045	offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
1046	(uint8_t *) phba->slim2p.virt;
1047	pdma_addr = phba->slim2p.phys + offset;
1048	pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
1049	pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
1050	iocbCnt += pring->sli.sli3.numCiocb;
1051
1052	/* Response ring setup for ring */
1053	pring->sli.sli3.rspringaddr = (void *) &phba->IOCBs[iocbCnt];
1054
1055	pcbp->rdsc[i].rspEntries = pring->sli.sli3.numRiocb;
1056	offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
1057	(uint8_t *)phba->slim2p.virt;
1058	pdma_addr = phba->slim2p.phys + offset;
1059	pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
1060	pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
1061	iocbCnt += pring->sli.sli3.numRiocb;
1062	}
1063	}
1064
1065	/**
1066	* lpfc_read_rev - Prepare a mailbox command for reading HBA revision
1067	* @phba: pointer to lpfc hba data structure.
1068	* @pmb: pointer to the driver internal queue element for mailbox command.
1069	*
1070	* The read revision mailbox command is used to read the revision levels of
1071	* the HBA components. These components include hardware units, resident
1072	* firmware, and available firmware. HBAs that supports SLI-3 mode of
1073	* operation provide different response information depending on the version
1074	* requested by the driver.
1075	*
1076	* This routine prepares the mailbox command for reading HBA revision
1077	* information.
1078	**/
1079	void
1080	lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1081	{
1082	MAILBOX_t *mb = &pmb->u.mb;
1083	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1084	mb->un.varRdRev.cv = 1;
1085	mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
1086	mb->mbxCommand = MBX_READ_REV;
1087	mb->mbxOwner = OWN_HOST;
1088	return;
1089	}
1090
1091	void
1092	lpfc_sli4_swap_str(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1093	{
1094	MAILBOX_t *mb = &pmb->u.mb;
1095	struct lpfc_mqe *mqe;
1096
1097	switch (mb->mbxCommand) {
1098	case MBX_READ_REV:
1099	mqe = &pmb->u.mqe;
1100	lpfc_sli_pcimem_bcopy(mqe->un.read_rev.fw_name,
1101	mqe->un.read_rev.fw_name, 16);
1102	lpfc_sli_pcimem_bcopy(mqe->un.read_rev.ulp_fw_name,
1103	mqe->un.read_rev.ulp_fw_name, 16);
1104	break;
1105	default:
1106	break;
1107	}
1108	return;
1109	}
1110
1111	/**
1112	* lpfc_build_hbq_profile2 - Set up the HBQ Selection Profile 2
1113	* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1114	* @hbq_desc: pointer to the HBQ selection profile descriptor.
1115	*
1116	* The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
1117	* tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
1118	* the Sequence Length Test using the fields in the Selection Profile 2
1119	* extension in words 20:31.
1120	**/
1121	static void
1122	lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
1123	struct lpfc_hbq_init *hbq_desc)
1124	{
1125	hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
1126	hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen;
1127	hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff;
1128	}
1129
1130	/**
1131	* lpfc_build_hbq_profile3 - Set up the HBQ Selection Profile 3
1132	* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1133	* @hbq_desc: pointer to the HBQ selection profile descriptor.
1134	*
1135	* The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
1136	* tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
1137	* the Sequence Length Test and Byte Field Test using the fields in the
1138	* Selection Profile 3 extension in words 20:31.
1139	**/
1140	static void
1141	lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
1142	struct lpfc_hbq_init *hbq_desc)
1143	{
1144	hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
1145	hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen;
1146	hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
1147	hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff;
1148	memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
1149	sizeof(hbqmb->profiles.profile3.cmdmatch));
1150	}
1151
1152	/**
1153	* lpfc_build_hbq_profile5 - Set up the HBQ Selection Profile 5
1154	* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
1155	* @hbq_desc: pointer to the HBQ selection profile descriptor.
1156	*
1157	* The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
1158	* HBA tests the initial frame of an incoming sequence using the frame's
1159	* R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
1160	* and Byte Field Test using the fields in the Selection Profile 5 extension
1161	* words 20:31.
1162	**/
1163	static void
1164	lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
1165	struct lpfc_hbq_init *hbq_desc)
1166	{
1167	hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
1168	hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen;
1169	hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
1170	hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff;
1171	memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
1172	sizeof(hbqmb->profiles.profile5.cmdmatch));
1173	}
1174
1175	/**
1176	* lpfc_config_hbq - Prepare a mailbox command for configuring an HBQ
1177	* @phba: pointer to lpfc hba data structure.
1178	* @id: HBQ identifier.
1179	* @hbq_desc: pointer to the HBA descriptor data structure.
1180	* @hbq_entry_index: index of the HBQ entry data structures.
1181	* @pmb: pointer to the driver internal queue element for mailbox command.
1182	*
1183	* The configure HBQ (Host Buffer Queue) mailbox command is used to configure
1184	* an HBQ. The configuration binds events that require buffers to a particular
1185	* ring and HBQ based on a selection profile.
1186	*
1187	* This routine prepares the mailbox command for configuring an HBQ.
1188	**/
1189	void
1190	lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
1191	struct lpfc_hbq_init *hbq_desc,
1192	uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
1193	{
1194	int i;
1195	MAILBOX_t *mb = &pmb->u.mb;
1196	struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
1197
1198	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1199	hbqmb->hbqId = id;
1200	hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */
1201	hbqmb->recvNotify = hbq_desc->rn; /* Receive
1202	* Notification */
1203	hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks
1204	* # in words 0-19 */
1205	hbqmb->profile = hbq_desc->profile; /* Selection profile:
1206	* 0 = all,
1207	* 7 = logentry */
1208	hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring
1209	* e.g. Ring0=b0001,
1210	* ring2=b0100 */
1211	hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4
1212	* or 5 */
1213	hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this
1214	* HBQ will be used
1215	* for LogEntry
1216	* buffers */
1217	hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
1218	hbq_entry_index * sizeof(struct lpfc_hbq_entry);
1219	hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
1220
1221	mb->mbxCommand = MBX_CONFIG_HBQ;
1222	mb->mbxOwner = OWN_HOST;
1223
1224	/* Copy info for profiles 2,3,5. Other
1225	* profiles this area is reserved
1226	*/
1227	if (hbq_desc->profile == 2)
1228	lpfc_build_hbq_profile2(hbqmb, hbq_desc);
1229	else if (hbq_desc->profile == 3)
1230	lpfc_build_hbq_profile3(hbqmb, hbq_desc);
1231	else if (hbq_desc->profile == 5)
1232	lpfc_build_hbq_profile5(hbqmb, hbq_desc);
1233
1234	/* Return if no rctl / type masks for this HBQ */
1235	if (!hbq_desc->mask_count)
1236	return;
1237
1238	/* Otherwise we setup specific rctl / type masks for this HBQ */
1239	for (i = 0; i < hbq_desc->mask_count; i++) {
1240	hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
1241	hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask;
1242	hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
1243	hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask;
1244	}
1245
1246	return;
1247	}
1248
1249	/**
1250	* lpfc_config_ring - Prepare a mailbox command for configuring an IOCB ring
1251	* @phba: pointer to lpfc hba data structure.
1252	* @ring: ring number/index
1253	* @pmb: pointer to the driver internal queue element for mailbox command.
1254	*
1255	* The configure ring mailbox command is used to configure an IOCB ring. This
1256	* configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
1257	* ring. This is used to map incoming sequences to a particular ring whose
1258	* RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
1259	* attempt to configure a ring whose number is greater than the number
1260	* specified in the Port Control Block (PCB). It is an error to issue the
1261	* configure ring command more than once with the same ring number. The HBA
1262	* returns an error if the driver attempts this.
1263	*
1264	* This routine prepares the mailbox command for configuring IOCB ring.
1265	**/
1266	void
1267	lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
1268	{
1269	int i;
1270	MAILBOX_t *mb = &pmb->u.mb;
1271	struct lpfc_sli *psli;
1272	struct lpfc_sli_ring *pring;
1273
1274	memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
1275
1276	mb->un.varCfgRing.ring = ring;
1277	mb->un.varCfgRing.maxOrigXchg = 0;
1278	mb->un.varCfgRing.maxRespXchg = 0;
1279	mb->un.varCfgRing.recvNotify = 1;
1280
1281	psli = &phba->sli;
1282	pring = &psli->sli3_ring[ring];
1283	mb->un.varCfgRing.numMask = pring->num_mask;
1284	mb->mbxCommand = MBX_CONFIG_RING;
1285	mb->mbxOwner = OWN_HOST;
1286
1287	/* Is this ring configured for a specific profile */
1288	if (pring->prt[0].profile) {
1289	mb->un.varCfgRing.profile = pring->prt[0].profile;
1290	return;
1291	}
1292
1293	/* Otherwise we setup specific rctl / type masks for this ring */
1294	for (i = 0; i < pring->num_mask; i++) {
1295	mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
1296	if (mb->un.varCfgRing.rrRegs[i].rval != FC_RCTL_ELS_REQ)
1297	mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
1298	else
1299	mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
1300	mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
1301	mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
1302	}
1303
1304	return;
1305	}
1306
1307	/**
1308	* lpfc_config_port - Prepare a mailbox command for configuring port
1309	* @phba: pointer to lpfc hba data structure.
1310	* @pmb: pointer to the driver internal queue element for mailbox command.
1311	*
1312	* The configure port mailbox command is used to identify the Port Control
1313	* Block (PCB) in the driver memory. After this command is issued, the
1314	* driver must not access the mailbox in the HBA without first resetting
1315	* the HBA. The HBA may copy the PCB information to internal storage for
1316	* subsequent use; the driver can not change the PCB information unless it
1317	* resets the HBA.
1318	*
1319	* This routine prepares the mailbox command for configuring port.
1320	**/
1321	void
1322	lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1323	{
1324	MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
1325	MAILBOX_t *mb = &pmb->u.mb;
1326	dma_addr_t pdma_addr;
1327	uint32_t bar_low, bar_high;
1328	size_t offset;
1329	struct lpfc_hgp hgp;
1330	int i;
1331	uint32_t pgp_offset;
1332
1333	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1334	mb->mbxCommand = MBX_CONFIG_PORT;
1335	mb->mbxOwner = OWN_HOST;
1336
1337	mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
1338
1339	offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
1340	pdma_addr = phba->slim2p.phys + offset;
1341	mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
1342	mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
1343
1344	/* Always Host Group Pointer is in SLIM */
1345	mb->un.varCfgPort.hps = 1;
1346
1347	/* If HBA supports SLI=3 ask for it */
1348
1349	if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
1350	if (phba->cfg_enable_bg)
1351	mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
1352	mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
1353	mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
1354	mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
1355	if (phba->max_vpi && phba->cfg_enable_npiv &&
1356	phba->vpd.sli3Feat.cmv) {
1357	mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
1358	mb->un.varCfgPort.cmv = 1;
1359	} else
1360	mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
1361	} else
1362	phba->sli_rev = LPFC_SLI_REV2;
1363	mb->un.varCfgPort.sli_mode = phba->sli_rev;
1364
1365	/* If this is an SLI3 port, configure async status notification. */
1366	if (phba->sli_rev == LPFC_SLI_REV3)
1367	mb->un.varCfgPort.casabt = 1;
1368
1369	/* Now setup pcb */
1370	phba->pcb->type = TYPE_NATIVE_SLI2;
1371	phba->pcb->feature = FEATURE_INITIAL_SLI2;
1372
1373	/* Setup Mailbox pointers */
1374	phba->pcb->mailBoxSize = sizeof(MAILBOX_t) + MAILBOX_EXT_SIZE;
1375	offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
1376	pdma_addr = phba->slim2p.phys + offset;
1377	phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
1378	phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);
1379
1380	/*
1381	* Setup Host Group ring pointer.
1382	*
1383	* For efficiency reasons, the ring get/put pointers can be
1384	* placed in adapter memory (SLIM) rather than in host memory.
1385	* This allows firmware to avoid PCI reads/writes when updating
1386	* and checking pointers.
1387	*
1388	* The firmware recognizes the use of SLIM memory by comparing
1389	* the address of the get/put pointers structure with that of
1390	* the SLIM BAR (BAR0).
1391	*
1392	* Caution: be sure to use the PCI config space value of BAR0/BAR1
1393	* (the hardware's view of the base address), not the OS's
1394	* value of pci_resource_start() as the OS value may be a cookie
1395	* for ioremap/iomap.
1396	*/
1397
1398
1399	pci_read_config_dword(dev: phba->pcidev, PCI_BASE_ADDRESS_0, val: &bar_low);
1400	pci_read_config_dword(dev: phba->pcidev, PCI_BASE_ADDRESS_1, val: &bar_high);
1401
1402	/*
1403	* Set up HGP - Port Memory
1404	*
1405	* The port expects the host get/put pointers to reside in memory
1406	* following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
1407	* area of SLIM. In SLI-2 mode, there's an additional 16 reserved
1408	* words (0x40 bytes). This area is not reserved if HBQs are
1409	* configured in SLI-3.
1410	*
1411	* CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
1412	* RR0Get 0xc4 0x84
1413	* CR1Put 0xc8 0x88
1414	* RR1Get 0xcc 0x8c
1415	* CR2Put 0xd0 0x90
1416	* RR2Get 0xd4 0x94
1417	* CR3Put 0xd8 0x98
1418	* RR3Get 0xdc 0x9c
1419	*
1420	* Reserved 0xa0-0xbf
1421	* If HBQs configured:
1422	* HBQ 0 Put ptr 0xc0
1423	* HBQ 1 Put ptr 0xc4
1424	* HBQ 2 Put ptr 0xc8
1425	* ......
1426	* HBQ(M-1)Put Pointer 0xc0+(M-1)*4
1427	*
1428	*/
1429
1430	if (phba->cfg_hostmem_hgp && phba->sli_rev != 3) {
1431	phba->host_gp = (struct lpfc_hgp __iomem *)
1432	&phba->mbox->us.s2.host[0];
1433	phba->hbq_put = NULL;
1434	offset = (uint8_t *)&phba->mbox->us.s2.host -
1435	(uint8_t *)phba->slim2p.virt;
1436	pdma_addr = phba->slim2p.phys + offset;
1437	phba->pcb->hgpAddrHigh = putPaddrHigh(pdma_addr);
1438	phba->pcb->hgpAddrLow = putPaddrLow(pdma_addr);
1439	} else {
1440	/* Always Host Group Pointer is in SLIM */
1441	mb->un.varCfgPort.hps = 1;
1442
1443	if (phba->sli_rev == 3) {
1444	phba->host_gp = &mb_slim->us.s3.host[0];
1445	phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
1446	} else {
1447	phba->host_gp = &mb_slim->us.s2.host[0];
1448	phba->hbq_put = NULL;
1449	}
1450
1451	/* mask off BAR0's flag bits 0 - 3 */
1452	phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
1453	(void __iomem *)phba->host_gp -
1454	(void __iomem *)phba->MBslimaddr;
1455	if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
1456	phba->pcb->hgpAddrHigh = bar_high;
1457	else
1458	phba->pcb->hgpAddrHigh = 0;
1459	/* write HGP data to SLIM at the required longword offset */
1460	memset(&hgp, 0, sizeof(struct lpfc_hgp));
1461
1462	for (i = 0; i < phba->sli.num_rings; i++) {
1463	lpfc_memcpy_to_slim(dest: phba->host_gp + i, src: &hgp,
1464	bytes: sizeof(*phba->host_gp));
1465	}
1466	}
1467
1468	/* Setup Port Group offset */
1469	if (phba->sli_rev == 3)
1470	pgp_offset = offsetof(struct lpfc_sli2_slim,
1471	mbx.us.s3_pgp.port);
1472	else
1473	pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
1474	pdma_addr = phba->slim2p.phys + pgp_offset;
1475	phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
1476	phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);
1477
1478	/* Use callback routine to setp rings in the pcb */
1479	lpfc_config_pcb_setup(phba);
1480
1481	/* special handling for LC HBAs */
1482	if (lpfc_is_LC_HBA(device: phba->pcidev->device)) {
1483	uint32_t hbainit[5];
1484
1485	lpfc_hba_init(phba, hbainit);
1486
1487	memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
1488	}
1489
1490	/* Swap PCB if needed */
1491	lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
1492	}
1493
1494	/**
1495	* lpfc_kill_board - Prepare a mailbox command for killing board
1496	* @phba: pointer to lpfc hba data structure.
1497	* @pmb: pointer to the driver internal queue element for mailbox command.
1498	*
1499	* The kill board mailbox command is used to tell firmware to perform a
1500	* graceful shutdown of a channel on a specified board to prepare for reset.
1501	* When the kill board mailbox command is received, the ER3 bit is set to 1
1502	* in the Host Status register and the ER Attention bit is set to 1 in the
1503	* Host Attention register of the HBA function that received the kill board
1504	* command.
1505	*
1506	* This routine prepares the mailbox command for killing the board in
1507	* preparation for a graceful shutdown.
1508	**/
1509	void
1510	lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1511	{
1512	MAILBOX_t *mb = &pmb->u.mb;
1513
1514	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1515	mb->mbxCommand = MBX_KILL_BOARD;
1516	mb->mbxOwner = OWN_HOST;
1517	return;
1518	}
1519
1520	/**
1521	* lpfc_mbox_put - Put a mailbox cmd into the tail of driver's mailbox queue
1522	* @phba: pointer to lpfc hba data structure.
1523	* @mbq: pointer to the driver internal queue element for mailbox command.
1524	*
1525	* Driver maintains a internal mailbox command queue implemented as a linked
1526	* list. When a mailbox command is issued, it shall be put into the mailbox
1527	* command queue such that they shall be processed orderly as HBA can process
1528	* one mailbox command at a time.
1529	**/
1530	void
1531	lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
1532	{
1533	struct lpfc_sli *psli;
1534
1535	psli = &phba->sli;
1536
1537	list_add_tail(new: &mbq->list, head: &psli->mboxq);
1538
1539	psli->mboxq_cnt++;
1540
1541	return;
1542	}
1543
1544	/**
1545	* lpfc_mbox_get - Remove a mailbox cmd from the head of driver's mailbox queue
1546	* @phba: pointer to lpfc hba data structure.
1547	*
1548	* Driver maintains a internal mailbox command queue implemented as a linked
1549	* list. When a mailbox command is issued, it shall be put into the mailbox
1550	* command queue such that they shall be processed orderly as HBA can process
1551	* one mailbox command at a time. After HBA finished processing a mailbox
1552	* command, the driver will remove a pending mailbox command from the head of
1553	* the mailbox command queue and send to the HBA for processing.
1554	*
1555	* Return codes
1556	* pointer to the driver internal queue element for mailbox command.
1557	**/
1558	LPFC_MBOXQ_t *
1559	lpfc_mbox_get(struct lpfc_hba * phba)
1560	{
1561	LPFC_MBOXQ_t *mbq = NULL;
1562	struct lpfc_sli *psli = &phba->sli;
1563
1564	list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
1565	if (mbq)
1566	psli->mboxq_cnt--;
1567
1568	return mbq;
1569	}
1570
1571	/**
1572	* __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
1573	* @phba: pointer to lpfc hba data structure.
1574	* @mbq: pointer to the driver internal queue element for mailbox command.
1575	*
1576	* This routine put the completed mailbox command into the mailbox command
1577	* complete list. This is the unlocked version of the routine. The mailbox
1578	* complete list is used by the driver worker thread to process mailbox
1579	* complete callback functions outside the driver interrupt handler.
1580	**/
1581	void
1582	__lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
1583	{
1584	list_add_tail(new: &mbq->list, head: &phba->sli.mboxq_cmpl);
1585	}
1586
1587	/**
1588	* lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
1589	* @phba: pointer to lpfc hba data structure.
1590	* @mbq: pointer to the driver internal queue element for mailbox command.
1591	*
1592	* This routine put the completed mailbox command into the mailbox command
1593	* complete list. This is the locked version of the routine. The mailbox
1594	* complete list is used by the driver worker thread to process mailbox
1595	* complete callback functions outside the driver interrupt handler.
1596	**/
1597	void
1598	lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
1599	{
1600	unsigned long iflag;
1601
1602	/* This function expects to be called from interrupt context */
1603	spin_lock_irqsave(&phba->hbalock, iflag);
1604	__lpfc_mbox_cmpl_put(phba, mbq);
1605	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflag);
1606	return;
1607	}
1608
1609	/**
1610	* lpfc_mbox_cmd_check - Check the validality of a mailbox command
1611	* @phba: pointer to lpfc hba data structure.
1612	* @mboxq: pointer to the driver internal queue element for mailbox command.
1613	*
1614	* This routine is to check whether a mailbox command is valid to be issued.
1615	* This check will be performed by both the mailbox issue API when a client
1616	* is to issue a mailbox command to the mailbox transport.
1617	*
1618	* Return 0 - pass the check, -ENODEV - fail the check
1619	**/
1620	int
1621	lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1622	{
1623	/* Mailbox command that have a completion handler must also have a
1624	* vport specified.
1625	*/
1626	if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
1627	mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
1628	if (!mboxq->vport) {
1629	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
1630	"1814 Mbox x%x failed, no vport\n",
1631	mboxq->u.mb.mbxCommand);
1632	dump_stack();
1633	return -ENODEV;
1634	}
1635	}
1636	return 0;
1637	}
1638
1639	/**
1640	* lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
1641	* @phba: pointer to lpfc hba data structure.
1642	*
1643	* This routine is to check whether the HBA device is ready for posting a
1644	* mailbox command. It is used by the mailbox transport API at the time the
1645	* to post a mailbox command to the device.
1646	*
1647	* Return 0 - pass the check, -ENODEV - fail the check
1648	**/
1649	int
1650	lpfc_mbox_dev_check(struct lpfc_hba *phba)
1651	{
1652	/* If the PCI channel is in offline state, do not issue mbox */
1653	if (unlikely(pci_channel_offline(phba->pcidev)))
1654	return -ENODEV;
1655
1656	/* If the HBA is in error state, do not issue mbox */
1657	if (phba->link_state == LPFC_HBA_ERROR)
1658	return -ENODEV;
1659
1660	return 0;
1661	}
1662
1663	/**
1664	* lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
1665	* @phba: pointer to lpfc hba data structure.
1666	* @mboxq: pointer to the driver internal queue element for mailbox command.
1667	*
1668	* This routine retrieves the proper timeout value according to the mailbox
1669	* command code.
1670	*
1671	* Return codes
1672	* Timeout value to be used for the given mailbox command
1673	**/
1674	int
1675	lpfc_mbox_tmo_val(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
1676	{
1677	MAILBOX_t *mbox = &mboxq->u.mb;
1678	uint8_t subsys, opcode;
1679
1680	switch (mbox->mbxCommand) {
1681	case MBX_WRITE_NV: /* 0x03 */
1682	case MBX_DUMP_MEMORY: /* 0x17 */
1683	case MBX_UPDATE_CFG: /* 0x1B */
1684	case MBX_DOWN_LOAD: /* 0x1C */
1685	case MBX_DEL_LD_ENTRY: /* 0x1D */
1686	case MBX_WRITE_VPARMS: /* 0x32 */
1687	case MBX_LOAD_AREA: /* 0x81 */
1688	case MBX_WRITE_WWN: /* 0x98 */
1689	case MBX_LOAD_EXP_ROM: /* 0x9C */
1690	case MBX_ACCESS_VDATA: /* 0xA5 */
1691	return LPFC_MBOX_TMO_FLASH_CMD;
1692	case MBX_SLI4_CONFIG: /* 0x9b */
1693	subsys = lpfc_sli_config_mbox_subsys_get(phba, mboxq);
1694	opcode = lpfc_sli_config_mbox_opcode_get(phba, mboxq);
1695	if (subsys == LPFC_MBOX_SUBSYSTEM_COMMON) {
1696	switch (opcode) {
1697	case LPFC_MBOX_OPCODE_READ_OBJECT:
1698	case LPFC_MBOX_OPCODE_WRITE_OBJECT:
1699	case LPFC_MBOX_OPCODE_READ_OBJECT_LIST:
1700	case LPFC_MBOX_OPCODE_DELETE_OBJECT:
1701	case LPFC_MBOX_OPCODE_GET_PROFILE_LIST:
1702	case LPFC_MBOX_OPCODE_SET_ACT_PROFILE:
1703	case LPFC_MBOX_OPCODE_GET_PROFILE_CONFIG:
1704	case LPFC_MBOX_OPCODE_SET_PROFILE_CONFIG:
1705	case LPFC_MBOX_OPCODE_GET_FACTORY_PROFILE_CONFIG:
1706	case LPFC_MBOX_OPCODE_GET_PROFILE_CAPACITIES:
1707	case LPFC_MBOX_OPCODE_SEND_ACTIVATION:
1708	case LPFC_MBOX_OPCODE_RESET_LICENSES:
1709	case LPFC_MBOX_OPCODE_SET_BOOT_CONFIG:
1710	case LPFC_MBOX_OPCODE_GET_VPD_DATA:
1711	case LPFC_MBOX_OPCODE_SET_PHYSICAL_LINK_CONFIG:
1712	return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
1713	}
1714	}
1715	if (subsys == LPFC_MBOX_SUBSYSTEM_FCOE) {
1716	switch (opcode) {
1717	case LPFC_MBOX_OPCODE_FCOE_SET_FCLINK_SETTINGS:
1718	return LPFC_MBOX_SLI4_CONFIG_EXTENDED_TMO;
1719	}
1720	}
1721	return LPFC_MBOX_SLI4_CONFIG_TMO;
1722	}
1723	return LPFC_MBOX_TMO;
1724	}
1725
1726	/**
1727	* lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
1728	* @mbox: pointer to lpfc mbox command.
1729	* @sgentry: sge entry index.
1730	* @phyaddr: physical address for the sge
1731	* @length: Length of the sge.
1732	*
1733	* This routine sets up an entry in the non-embedded mailbox command at the sge
1734	* index location.
1735	**/
1736	void
1737	lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
1738	dma_addr_t phyaddr, uint32_t length)
1739	{
1740	struct lpfc_mbx_nembed_cmd *nembed_sge;
1741
1742	nembed_sge = (struct lpfc_mbx_nembed_cmd *)
1743	&mbox->u.mqe.un.nembed_cmd;
1744	nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
1745	nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
1746	nembed_sge->sge[sgentry].length = length;
1747	}
1748
1749	/**
1750	* lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
1751	* @mbox: pointer to lpfc mbox command.
1752	* @sgentry: sge entry index.
1753	* @sge: pointer to lpfc mailbox sge to load into.
1754	*
1755	* This routine gets an entry from the non-embedded mailbox command at the sge
1756	* index location.
1757	**/
1758	void
1759	lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
1760	struct lpfc_mbx_sge *sge)
1761	{
1762	struct lpfc_mbx_nembed_cmd *nembed_sge;
1763
1764	nembed_sge = (struct lpfc_mbx_nembed_cmd *)
1765	&mbox->u.mqe.un.nembed_cmd;
1766	sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
1767	sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
1768	sge->length = nembed_sge->sge[sgentry].length;
1769	}
1770
1771	/**
1772	* lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
1773	* @phba: pointer to lpfc hba data structure.
1774	* @mbox: pointer to lpfc mbox command.
1775	*
1776	* This routine cleans up and releases an SLI4 mailbox command that was
1777	* configured using lpfc_sli4_config. It accounts for the embedded and
1778	* non-embedded config types.
1779	**/
1780	void
1781	lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
1782	{
1783	struct lpfc_mbx_sli4_config *sli4_cfg;
1784	struct lpfc_mbx_sge sge;
1785	dma_addr_t phyaddr;
1786	uint32_t sgecount, sgentry;
1787
1788	sli4_cfg = &mbox->u.mqe.un.sli4_config;
1789
1790	/* For embedded mbox command, just free the mbox command */
1791	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
1792	mempool_free(element: mbox, pool: phba->mbox_mem_pool);
1793	return;
1794	}
1795
1796	/* For non-embedded mbox command, we need to free the pages first */
1797	sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
1798	/* There is nothing we can do if there is no sge address array */
1799	if (unlikely(!mbox->sge_array)) {
1800	mempool_free(element: mbox, pool: phba->mbox_mem_pool);
1801	return;
1802	}
1803	/* Each non-embedded DMA memory was allocated in the length of a page */
1804	for (sgentry = 0; sgentry < sgecount; sgentry++) {
1805	lpfc_sli4_mbx_sge_get(mbox, sgentry, sge: &sge);
1806	phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
1807	dma_free_coherent(dev: &phba->pcidev->dev, SLI4_PAGE_SIZE,
1808	cpu_addr: mbox->sge_array->addr[sgentry], dma_handle: phyaddr);
1809	}
1810	/* Reinitialize the context pointers to avoid stale usage. */
1811	mbox->ctx_buf = NULL;
1812	memset(&mbox->ctx_u, 0, sizeof(mbox->ctx_u));
1813	kfree(objp: mbox->sge_array);
1814	/* Finally, free the mailbox command itself */
1815	mempool_free(element: mbox, pool: phba->mbox_mem_pool);
1816	}
1817
1818	/**
1819	* lpfc_sli4_config - Initialize the SLI4 Config Mailbox command
1820	* @phba: pointer to lpfc hba data structure.
1821	* @mbox: pointer to lpfc mbox command.
1822	* @subsystem: The sli4 config sub mailbox subsystem.
1823	* @opcode: The sli4 config sub mailbox command opcode.
1824	* @length: Length of the sli4 config mailbox command (including sub-header).
1825	* @emb: True if embedded mbox command should be setup.
1826	*
1827	* This routine sets up the header fields of SLI4 specific mailbox command
1828	* for sending IOCTL command.
1829	*
1830	* Return: the actual length of the mbox command allocated (mostly useful
1831	* for none embedded mailbox command).
1832	**/
1833	int
1834	lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
1835	uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
1836	{
1837	struct lpfc_mbx_sli4_config *sli4_config;
1838	union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
1839	uint32_t alloc_len;
1840	uint32_t resid_len;
1841	uint32_t pagen, pcount;
1842	void *viraddr;
1843	dma_addr_t phyaddr;
1844
1845	/* Set up SLI4 mailbox command header fields */
1846	memset(mbox, 0, sizeof(*mbox));
1847	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
1848
1849	/* Set up SLI4 ioctl command header fields */
1850	sli4_config = &mbox->u.mqe.un.sli4_config;
1851
1852	/* Setup for the embedded mbox command */
1853	if (emb) {
1854	/* Set up main header fields */
1855	bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
1856	sli4_config->header.cfg_mhdr.payload_length = length;
1857	/* Set up sub-header fields following main header */
1858	bf_set(lpfc_mbox_hdr_opcode,
1859	&sli4_config->header.cfg_shdr.request, opcode);
1860	bf_set(lpfc_mbox_hdr_subsystem,
1861	&sli4_config->header.cfg_shdr.request, subsystem);
1862	sli4_config->header.cfg_shdr.request.request_length =
1863	length - LPFC_MBX_CMD_HDR_LENGTH;
1864	return length;
1865	}
1866
1867	/* Setup for the non-embedded mbox command */
1868	pcount = (SLI4_PAGE_ALIGN(length))/SLI4_PAGE_SIZE;
1869	pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
1870	LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
1871	/* Allocate record for keeping SGE virtual addresses */
1872	mbox->sge_array = kzalloc(size: sizeof(struct lpfc_mbx_nembed_sge_virt),
1873	GFP_KERNEL);
1874	if (!mbox->sge_array) {
1875	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1876	"2527 Failed to allocate non-embedded SGE "
1877	"array.\n");
1878	return 0;
1879	}
1880	for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
1881	/* The DMA memory is always allocated in the length of a
1882	* page even though the last SGE might not fill up to a
1883	* page, this is used as a priori size of SLI4_PAGE_SIZE for
1884	* the later DMA memory free.
1885	*/
1886	viraddr = dma_alloc_coherent(dev: &phba->pcidev->dev,
1887	SLI4_PAGE_SIZE, dma_handle: &phyaddr,
1888	GFP_KERNEL);
1889	/* In case of malloc fails, proceed with whatever we have */
1890	if (!viraddr)
1891	break;
1892	mbox->sge_array->addr[pagen] = viraddr;
1893	/* Keep the first page for later sub-header construction */
1894	if (pagen == 0)
1895	cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
1896	resid_len = length - alloc_len;
1897	if (resid_len > SLI4_PAGE_SIZE) {
1898	lpfc_sli4_mbx_sge_set(mbox, sgentry: pagen, phyaddr,
1899	SLI4_PAGE_SIZE);
1900	alloc_len += SLI4_PAGE_SIZE;
1901	} else {
1902	lpfc_sli4_mbx_sge_set(mbox, sgentry: pagen, phyaddr,
1903	length: resid_len);
1904	alloc_len = length;
1905	}
1906	}
1907
1908	/* Set up main header fields in mailbox command */
1909	sli4_config->header.cfg_mhdr.payload_length = alloc_len;
1910	bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
1911
1912	/* Set up sub-header fields into the first page */
1913	if (pagen > 0) {
1914	bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
1915	bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
1916	cfg_shdr->request.request_length =
1917	alloc_len - sizeof(union lpfc_sli4_cfg_shdr);
1918	}
1919	/* The sub-header is in DMA memory, which needs endian converstion */
1920	if (cfg_shdr)
1921	lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
1922	sizeof(union lpfc_sli4_cfg_shdr));
1923	return alloc_len;
1924	}
1925
1926	/**
1927	* lpfc_sli4_mbox_rsrc_extent - Initialize the opcode resource extent.
1928	* @phba: pointer to lpfc hba data structure.
1929	* @mbox: pointer to an allocated lpfc mbox resource.
1930	* @exts_count: the number of extents, if required, to allocate.
1931	* @rsrc_type: the resource extent type.
1932	* @emb: true if LPFC_SLI4_MBX_EMBED. false if LPFC_SLI4_MBX_NEMBED.
1933	*
1934	* This routine completes the subcommand header for SLI4 resource extent
1935	* mailbox commands. It is called after lpfc_sli4_config. The caller must
1936	* pass an allocated mailbox and the attributes required to initialize the
1937	* mailbox correctly.
1938	*
1939	* Return: the actual length of the mbox command allocated.
1940	**/
1941	int
1942	lpfc_sli4_mbox_rsrc_extent(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
1943	uint16_t exts_count, uint16_t rsrc_type, bool emb)
1944	{
1945	uint8_t opcode = 0;
1946	struct lpfc_mbx_nembed_rsrc_extent *n_rsrc_extnt = NULL;
1947	void *virtaddr = NULL;
1948
1949	/* Set up SLI4 ioctl command header fields */
1950	if (emb == LPFC_SLI4_MBX_NEMBED) {
1951	/* Get the first SGE entry from the non-embedded DMA memory */
1952	virtaddr = mbox->sge_array->addr[0];
1953	if (virtaddr == NULL)
1954	return 1;
1955	n_rsrc_extnt = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
1956	}
1957
1958	/*
1959	* The resource type is common to all extent Opcodes and resides in the
1960	* same position.
1961	*/
1962	if (emb == LPFC_SLI4_MBX_EMBED)
1963	bf_set(lpfc_mbx_alloc_rsrc_extents_type,
1964	&mbox->u.mqe.un.alloc_rsrc_extents.u.req,
1965	rsrc_type);
1966	else {
1967	/* This is DMA data. Byteswap is required. */
1968	bf_set(lpfc_mbx_alloc_rsrc_extents_type,
1969	n_rsrc_extnt, rsrc_type);
1970	lpfc_sli_pcimem_bcopy(&n_rsrc_extnt->word4,
1971	&n_rsrc_extnt->word4,
1972	sizeof(uint32_t));
1973	}
1974
1975	/* Complete the initialization for the particular Opcode. */
1976	opcode = lpfc_sli_config_mbox_opcode_get(phba, mbox);
1977	switch (opcode) {
1978	case LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT:
1979	if (emb == LPFC_SLI4_MBX_EMBED)
1980	bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
1981	&mbox->u.mqe.un.alloc_rsrc_extents.u.req,
1982	exts_count);
1983	else
1984	bf_set(lpfc_mbx_alloc_rsrc_extents_cnt,
1985	n_rsrc_extnt, exts_count);
1986	break;
1987	case LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT:
1988	case LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO:
1989	case LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT:
1990	/* Initialization is complete.*/
1991	break;
1992	default:
1993	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1994	"2929 Resource Extent Opcode x%x is "
1995	"unsupported\n", opcode);
1996	return 1;
1997	}
1998
1999	return 0;
2000	}
2001
2002	/**
2003	* lpfc_sli_config_mbox_subsys_get - Get subsystem from a sli_config mbox cmd
2004	* @phba: pointer to lpfc hba data structure.
2005	* @mbox: pointer to lpfc mbox command queue entry.
2006	*
2007	* This routine gets the subsystem from a SLI4 specific SLI_CONFIG mailbox
2008	* command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if the
2009	* sub-header is not present, subsystem LPFC_MBOX_SUBSYSTEM_NA (0x0) shall
2010	* be returned.
2011	**/
2012	uint8_t
2013	lpfc_sli_config_mbox_subsys_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2014	{
2015	struct lpfc_mbx_sli4_config *sli4_cfg;
2016	union lpfc_sli4_cfg_shdr *cfg_shdr;
2017
2018	if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
2019	return LPFC_MBOX_SUBSYSTEM_NA;
2020	sli4_cfg = &mbox->u.mqe.un.sli4_config;
2021
2022	/* For embedded mbox command, get opcode from embedded sub-header*/
2023	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
2024	cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
2025	return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
2026	}
2027
2028	/* For non-embedded mbox command, get opcode from first dma page */
2029	if (unlikely(!mbox->sge_array))
2030	return LPFC_MBOX_SUBSYSTEM_NA;
2031	cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
2032	return bf_get(lpfc_mbox_hdr_subsystem, &cfg_shdr->request);
2033	}
2034
2035	/**
2036	* lpfc_sli_config_mbox_opcode_get - Get opcode from a sli_config mbox cmd
2037	* @phba: pointer to lpfc hba data structure.
2038	* @mbox: pointer to lpfc mbox command queue entry.
2039	*
2040	* This routine gets the opcode from a SLI4 specific SLI_CONFIG mailbox
2041	* command. If the mailbox command is not MBX_SLI4_CONFIG (0x9B) or if
2042	* the sub-header is not present, opcode LPFC_MBOX_OPCODE_NA (0x0) be
2043	* returned.
2044	**/
2045	uint8_t
2046	lpfc_sli_config_mbox_opcode_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2047	{
2048	struct lpfc_mbx_sli4_config *sli4_cfg;
2049	union lpfc_sli4_cfg_shdr *cfg_shdr;
2050
2051	if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
2052	return LPFC_MBOX_OPCODE_NA;
2053	sli4_cfg = &mbox->u.mqe.un.sli4_config;
2054
2055	/* For embedded mbox command, get opcode from embedded sub-header*/
2056	if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
2057	cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
2058	return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
2059	}
2060
2061	/* For non-embedded mbox command, get opcode from first dma page */
2062	if (unlikely(!mbox->sge_array))
2063	return LPFC_MBOX_OPCODE_NA;
2064	cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
2065	return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
2066	}
2067
2068	/**
2069	* lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd
2070	* @phba: pointer to lpfc hba data structure.
2071	* @mboxq: pointer to lpfc mbox command.
2072	* @fcf_index: index to fcf table.
2073	*
2074	* This routine routine allocates and constructs non-embedded mailbox command
2075	* for reading a FCF table entry referred by @fcf_index.
2076	*
2077	* Return: pointer to the mailbox command constructed if successful, otherwise
2078	* NULL.
2079	**/
2080	int
2081	lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba,
2082	struct lpfcMboxq *mboxq,
2083	uint16_t fcf_index)
2084	{
2085	void *virt_addr;
2086	uint8_t *bytep;
2087	struct lpfc_mbx_sge sge;
2088	uint32_t alloc_len, req_len;
2089	struct lpfc_mbx_read_fcf_tbl *read_fcf;
2090
2091	if (!mboxq)
2092	return -ENOMEM;
2093
2094	req_len = sizeof(struct fcf_record) +
2095	sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
2096
2097	/* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
2098	alloc_len = lpfc_sli4_config(phba, mbox: mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2099	LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, length: req_len,
2100	LPFC_SLI4_MBX_NEMBED);
2101
2102	if (alloc_len < req_len) {
2103	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2104	"0291 Allocated DMA memory size (x%x) is "
2105	"less than the requested DMA memory "
2106	"size (x%x)\n", alloc_len, req_len);
2107	return -ENOMEM;
2108	}
2109
2110	/* Get the first SGE entry from the non-embedded DMA memory. This
2111	* routine only uses a single SGE.
2112	*/
2113	lpfc_sli4_mbx_sge_get(mbox: mboxq, sgentry: 0, sge: &sge);
2114	virt_addr = mboxq->sge_array->addr[0];
2115	read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
2116
2117	/* Set up command fields */
2118	bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
2119	/* Perform necessary endian conversion */
2120	bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
2121	lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
2122
2123	return 0;
2124	}
2125
2126	/**
2127	* lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
2128	* @phba: pointer to lpfc hba data structure.
2129	* @mboxq: pointer to lpfc mbox command.
2130	*
2131	* This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
2132	* mailbox command.
2133	**/
2134	void
2135	lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
2136	{
2137	/* Set up SLI4 mailbox command header fields */
2138	memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
2139	bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);
2140
2141	/* Set up host requested features. */
2142	bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
2143	bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);
2144
2145	/* Enable DIF (block guard) only if configured to do so. */
2146	if (phba->cfg_enable_bg)
2147	bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);
2148
2149	/* Enable NPIV only if configured to do so. */
2150	if (phba->max_vpi && phba->cfg_enable_npiv)
2151	bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);
2152
2153	if (phba->nvmet_support) {
2154	bf_set(lpfc_mbx_rq_ftr_rq_mrqp, &mboxq->u.mqe.un.req_ftrs, 1);
2155	/* iaab/iaar NOT set for now */
2156	bf_set(lpfc_mbx_rq_ftr_rq_iaab, &mboxq->u.mqe.un.req_ftrs, 0);
2157	bf_set(lpfc_mbx_rq_ftr_rq_iaar, &mboxq->u.mqe.un.req_ftrs, 0);
2158	}
2159
2160	/* Enable Application Services Header for appheader VMID */
2161	if (phba->cfg_vmid_app_header) {
2162	bf_set(lpfc_mbx_rq_ftr_rq_ashdr, &mboxq->u.mqe.un.req_ftrs, 1);
2163	bf_set(lpfc_ftr_ashdr, &phba->sli4_hba.sli4_flags, 1);
2164	}
2165	return;
2166	}
2167
2168	/**
2169	* lpfc_init_vfi - Initialize the INIT_VFI mailbox command
2170	* @mbox: pointer to lpfc mbox command to initialize.
2171	* @vport: Vport associated with the VF.
2172	*
2173	* This routine initializes @mbox to all zeros and then fills in the mailbox
2174	* fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
2175	* in the context of an FCF. The driver issues this command to setup a VFI
2176	* before issuing a FLOGI to login to the VSAN. The driver should also issue a
2177	* REG_VFI after a successful VSAN login.
2178	**/
2179	void
2180	lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
2181	{
2182	struct lpfc_mbx_init_vfi *init_vfi;
2183
2184	memset(mbox, 0, sizeof(*mbox));
2185	mbox->vport = vport;
2186	init_vfi = &mbox->u.mqe.un.init_vfi;
2187	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
2188	bf_set(lpfc_init_vfi_vr, init_vfi, 1);
2189	bf_set(lpfc_init_vfi_vt, init_vfi, 1);
2190	bf_set(lpfc_init_vfi_vp, init_vfi, 1);
2191	bf_set(lpfc_init_vfi_vfi, init_vfi,
2192	vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2193	bf_set(lpfc_init_vfi_vpi, init_vfi,
2194	vport->phba->vpi_ids[vport->vpi]);
2195	bf_set(lpfc_init_vfi_fcfi, init_vfi,
2196	vport->phba->fcf.fcfi);
2197	}
2198
2199	/**
2200	* lpfc_reg_vfi - Initialize the REG_VFI mailbox command
2201	* @mbox: pointer to lpfc mbox command to initialize.
2202	* @vport: vport associated with the VF.
2203	* @phys: BDE DMA bus address used to send the service parameters to the HBA.
2204	*
2205	* This routine initializes @mbox to all zeros and then fills in the mailbox
2206	* fields from @vport, and uses @buf as a DMAable buffer to send the vport's
2207	* fc service parameters to the HBA for this VFI. REG_VFI configures virtual
2208	* fabrics identified by VFI in the context of an FCF.
2209	**/
2210	void
2211	lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
2212	{
2213	struct lpfc_mbx_reg_vfi *reg_vfi;
2214	struct lpfc_hba *phba = vport->phba;
2215	uint8_t bbscn_fabric = 0, bbscn_max = 0, bbscn_def = 0;
2216
2217	memset(mbox, 0, sizeof(*mbox));
2218	reg_vfi = &mbox->u.mqe.un.reg_vfi;
2219	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
2220	bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
2221	bf_set(lpfc_reg_vfi_vfi, reg_vfi,
2222	phba->sli4_hba.vfi_ids[vport->vfi]);
2223	bf_set(lpfc_reg_vfi_fcfi, reg_vfi, phba->fcf.fcfi);
2224	bf_set(lpfc_reg_vfi_vpi, reg_vfi, phba->vpi_ids[vport->vpi]);
2225	memcpy(reg_vfi->wwn, &vport->fc_portname, sizeof(struct lpfc_name));
2226	reg_vfi->wwn[0] = cpu_to_le32(reg_vfi->wwn[0]);
2227	reg_vfi->wwn[1] = cpu_to_le32(reg_vfi->wwn[1]);
2228	reg_vfi->e_d_tov = phba->fc_edtov;
2229	reg_vfi->r_a_tov = phba->fc_ratov;
2230	if (phys) {
2231	reg_vfi->bde.addrHigh = putPaddrHigh(phys);
2232	reg_vfi->bde.addrLow = putPaddrLow(phys);
2233	reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
2234	reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
2235	}
2236	bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
2237
2238	/* Only FC supports upd bit */
2239	if ((phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) &&
2240	test_bit(FC_VFI_REGISTERED, &vport->fc_flag) &&
2241	(!phba->fc_topology_changed))
2242	bf_set(lpfc_reg_vfi_upd, reg_vfi, 1);
2243
2244	bf_set(lpfc_reg_vfi_bbcr, reg_vfi, 0);
2245	bf_set(lpfc_reg_vfi_bbscn, reg_vfi, 0);
2246	bbscn_fabric = (phba->fc_fabparam.cmn.bbRcvSizeMsb >> 4) & 0xF;
2247
2248	if (phba->bbcredit_support && phba->cfg_enable_bbcr &&
2249	bbscn_fabric != 0) {
2250	bbscn_max = bf_get(lpfc_bbscn_max,
2251	&phba->sli4_hba.bbscn_params);
2252	if (bbscn_fabric <= bbscn_max) {
2253	bbscn_def = bf_get(lpfc_bbscn_def,
2254	&phba->sli4_hba.bbscn_params);
2255
2256	if (bbscn_fabric > bbscn_def)
2257	bf_set(lpfc_reg_vfi_bbscn, reg_vfi,
2258	bbscn_fabric);
2259	else
2260	bf_set(lpfc_reg_vfi_bbscn, reg_vfi, bbscn_def);
2261
2262	bf_set(lpfc_reg_vfi_bbcr, reg_vfi, 1);
2263	}
2264	}
2265	lpfc_printf_vlog(vport, KERN_INFO, LOG_MBOX,
2266	"3134 Register VFI, mydid:x%x, fcfi:%d, "
2267	"vfi:%d, vpi:%d, fc_pname:%x%x fc_flag:x%lx "
2268	"port_state:x%x topology chg:%d bbscn_fabric :%d\n",
2269	vport->fc_myDID,
2270	phba->fcf.fcfi,
2271	phba->sli4_hba.vfi_ids[vport->vfi],
2272	phba->vpi_ids[vport->vpi],
2273	reg_vfi->wwn[0], reg_vfi->wwn[1], vport->fc_flag,
2274	vport->port_state, phba->fc_topology_changed,
2275	bbscn_fabric);
2276	}
2277
2278	/**
2279	* lpfc_init_vpi - Initialize the INIT_VPI mailbox command
2280	* @phba: pointer to the hba structure to init the VPI for.
2281	* @mbox: pointer to lpfc mbox command to initialize.
2282	* @vpi: VPI to be initialized.
2283	*
2284	* The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
2285	* command to activate a virtual N_Port. The HBA assigns a MAC address to use
2286	* with the virtual N Port. The SLI Host issues this command before issuing a
2287	* FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
2288	* successful virtual NPort login.
2289	**/
2290	void
2291	lpfc_init_vpi(struct lpfc_hba *phba, struct lpfcMboxq *mbox, uint16_t vpi)
2292	{
2293	memset(mbox, 0, sizeof(*mbox));
2294	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
2295	bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi,
2296	phba->vpi_ids[vpi]);
2297	bf_set(lpfc_init_vpi_vfi, &mbox->u.mqe.un.init_vpi,
2298	phba->sli4_hba.vfi_ids[phba->pport->vfi]);
2299	}
2300
2301	/**
2302	* lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
2303	* @mbox: pointer to lpfc mbox command to initialize.
2304	* @vport: vport associated with the VF.
2305	*
2306	* The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
2307	* (logical NPort) into the inactive state. The SLI Host must have logged out
2308	* and unregistered all remote N_Ports to abort any activity on the virtual
2309	* fabric. The SLI Port posts the mailbox response after marking the virtual
2310	* fabric inactive.
2311	**/
2312	void
2313	lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
2314	{
2315	memset(mbox, 0, sizeof(*mbox));
2316	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
2317	bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi,
2318	vport->phba->sli4_hba.vfi_ids[vport->vfi]);
2319	}
2320
2321	/**
2322	* lpfc_sli4_dump_cfg_rg23 - Dump sli4 port config region 23
2323	* @phba: pointer to the hba structure containing.
2324	* @mbox: pointer to lpfc mbox command to initialize.
2325	*
2326	* This function create a SLI4 dump mailbox command to dump configure
2327	* region 23.
2328	**/
2329	int
2330	lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2331	{
2332	struct lpfc_dmabuf *mp = NULL;
2333	MAILBOX_t *mb;
2334	int rc;
2335
2336	memset(mbox, 0, sizeof(*mbox));
2337	mb = &mbox->u.mb;
2338
2339	rc = lpfc_mbox_rsrc_prep(phba, mbox);
2340	if (rc) {
2341	lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2342	"2569 %s: memory allocation failed\n",
2343	__func__);
2344	return 1;
2345	}
2346
2347	mb->mbxCommand = MBX_DUMP_MEMORY;
2348	mb->un.varDmp.type = DMP_NV_PARAMS;
2349	mb->un.varDmp.region_id = DMP_REGION_23;
2350	mb->un.varDmp.sli4_length = DMP_RGN23_SIZE;
2351	mp = mbox->ctx_buf;
2352	mb->un.varWords[3] = putPaddrLow(mp->phys);
2353	mb->un.varWords[4] = putPaddrHigh(mp->phys);
2354	return 0;
2355	}
2356
2357	static void
2358	lpfc_mbx_cmpl_rdp_link_stat(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
2359	{
2360	MAILBOX_t *mb;
2361	int rc = FAILURE;
2362	struct lpfc_rdp_context *rdp_context = mboxq->ctx_u.rdp;
2363
2364	mb = &mboxq->u.mb;
2365	if (mb->mbxStatus)
2366	goto mbx_failed;
2367
2368	memcpy(&rdp_context->link_stat, &mb->un.varRdLnk, sizeof(READ_LNK_VAR));
2369
2370	rc = SUCCESS;
2371
2372	mbx_failed:
2373	lpfc_mbox_rsrc_cleanup(phba, mbox: mboxq, locked: MBOX_THD_UNLOCKED);
2374	rdp_context->cmpl(phba, rdp_context, rc);
2375	}
2376
2377	static void
2378	lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2379	{
2380	struct lpfc_dmabuf *mp = mbox->ctx_buf;
2381	struct lpfc_rdp_context *rdp_context = mbox->ctx_u.rdp;
2382
2383	if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
2384	goto error_mbox_free;
2385
2386	lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
2387	DMP_SFF_PAGE_A2_SIZE);
2388
2389	lpfc_read_lnk_stat(phba, pmb: mbox);
2390	mbox->vport = rdp_context->ndlp->vport;
2391
2392	/* Save the dma buffer for cleanup in the final completion. */
2393	mbox->ctx_buf = mp;
2394	mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat;
2395	mbox->ctx_u.rdp = rdp_context;
2396	if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED)
2397	goto error_mbox_free;
2398
2399	return;
2400
2401	error_mbox_free:
2402	lpfc_mbox_rsrc_cleanup(phba, mbox, locked: MBOX_THD_UNLOCKED);
2403	rdp_context->cmpl(phba, rdp_context, FAILURE);
2404	}
2405
2406	void
2407	lpfc_mbx_cmpl_rdp_page_a0(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2408	{
2409	int rc;
2410	struct lpfc_dmabuf *mp = mbox->ctx_buf;
2411	struct lpfc_rdp_context *rdp_context = mbox->ctx_u.rdp;
2412
2413	if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
2414	goto error;
2415
2416	lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a0,
2417	DMP_SFF_PAGE_A0_SIZE);
2418
2419	memset(mbox, 0, sizeof(*mbox));
2420
2421	memset(mp->virt, 0, DMP_SFF_PAGE_A2_SIZE);
2422	INIT_LIST_HEAD(list: &mp->list);
2423
2424	/* save address for completion */
2425	mbox->ctx_buf = mp;
2426	mbox->vport = rdp_context->ndlp->vport;
2427
2428	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
2429	bf_set(lpfc_mbx_memory_dump_type3_type,
2430	&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
2431	bf_set(lpfc_mbx_memory_dump_type3_link,
2432	&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
2433	bf_set(lpfc_mbx_memory_dump_type3_page_no,
2434	&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A2);
2435	bf_set(lpfc_mbx_memory_dump_type3_length,
2436	&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A2_SIZE);
2437	mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
2438	mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
2439
2440	mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a2;
2441	mbox->ctx_u.rdp = rdp_context;
2442	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
2443	if (rc == MBX_NOT_FINISHED)
2444	goto error;
2445
2446	return;
2447
2448	error:
2449	lpfc_mbox_rsrc_cleanup(phba, mbox, locked: MBOX_THD_UNLOCKED);
2450	rdp_context->cmpl(phba, rdp_context, FAILURE);
2451	}
2452
2453
2454	/*
2455	* lpfc_sli4_dump_page_a0 - Dump sli4 read SFP Diagnostic.
2456	* @phba: pointer to the hba structure containing.
2457	* @mbox: pointer to lpfc mbox command to initialize.
2458	*
2459	* This function create a SLI4 dump mailbox command to dump configure
2460	* type 3 page 0xA0.
2461	*/
2462	int
2463	lpfc_sli4_dump_page_a0(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2464	{
2465	int rc;
2466	struct lpfc_dmabuf *mp = NULL;
2467
2468	memset(mbox, 0, sizeof(*mbox));
2469
2470	rc = lpfc_mbox_rsrc_prep(phba, mbox);
2471	if (rc) {
2472	lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2473	"3569 dump type 3 page 0xA0 allocation failed\n");
2474	return 1;
2475	}
2476
2477	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_DUMP_MEMORY);
2478	bf_set(lpfc_mbx_memory_dump_type3_type,
2479	&mbox->u.mqe.un.mem_dump_type3, DMP_LMSD);
2480	bf_set(lpfc_mbx_memory_dump_type3_link,
2481	&mbox->u.mqe.un.mem_dump_type3, phba->sli4_hba.physical_port);
2482	bf_set(lpfc_mbx_memory_dump_type3_page_no,
2483	&mbox->u.mqe.un.mem_dump_type3, DMP_PAGE_A0);
2484	bf_set(lpfc_mbx_memory_dump_type3_length,
2485	&mbox->u.mqe.un.mem_dump_type3, DMP_SFF_PAGE_A0_SIZE);
2486
2487	mp = mbox->ctx_buf;
2488	mbox->u.mqe.un.mem_dump_type3.addr_lo = putPaddrLow(mp->phys);
2489	mbox->u.mqe.un.mem_dump_type3.addr_hi = putPaddrHigh(mp->phys);
2490
2491	return 0;
2492	}
2493
2494	/**
2495	* lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
2496	* @phba: pointer to the hba structure containing the FCF index and RQ ID.
2497	* @mbox: pointer to lpfc mbox command to initialize.
2498	*
2499	* The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
2500	* SLI Host uses the command to activate an FCF after it has acquired FCF
2501	* information via a READ_FCF mailbox command. This mailbox command also is used
2502	* to indicate where received unsolicited frames from this FCF will be sent. By
2503	* default this routine will set up the FCF to forward all unsolicited frames
2504	* to the RQ ID passed in the @phba. This can be overridden by the caller for
2505	* more complicated setups.
2506	**/
2507	void
2508	lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
2509	{
2510	struct lpfc_mbx_reg_fcfi *reg_fcfi;
2511
2512	memset(mbox, 0, sizeof(*mbox));
2513	reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
2514	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
2515	if (phba->nvmet_support == 0) {
2516	bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi,
2517	phba->sli4_hba.hdr_rq->queue_id);
2518	/* Match everything - rq_id0 */
2519	bf_set(lpfc_reg_fcfi_type_match0, reg_fcfi, 0);
2520	bf_set(lpfc_reg_fcfi_type_mask0, reg_fcfi, 0);
2521	bf_set(lpfc_reg_fcfi_rctl_match0, reg_fcfi, 0);
2522	bf_set(lpfc_reg_fcfi_rctl_mask0, reg_fcfi, 0);
2523
2524	bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
2525
2526	/* addr mode is bit wise inverted value of fcf addr_mode */
2527	bf_set(lpfc_reg_fcfi_mam, reg_fcfi,
2528	(~phba->fcf.addr_mode) & 0x3);
2529	} else {
2530	/* This is ONLY for NVMET MRQ == 1 */
2531	if (phba->cfg_nvmet_mrq != 1)
2532	return;
2533
2534	bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi,
2535	phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id);
2536	/* Match type FCP - rq_id0 */
2537	bf_set(lpfc_reg_fcfi_type_match0, reg_fcfi, FC_TYPE_FCP);
2538	bf_set(lpfc_reg_fcfi_type_mask0, reg_fcfi, 0xff);
2539	bf_set(lpfc_reg_fcfi_rctl_match0, reg_fcfi,
2540	FC_RCTL_DD_UNSOL_CMD);
2541
2542	bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi,
2543	phba->sli4_hba.hdr_rq->queue_id);
2544	/* Match everything else - rq_id1 */
2545	bf_set(lpfc_reg_fcfi_type_match1, reg_fcfi, 0);
2546	bf_set(lpfc_reg_fcfi_type_mask1, reg_fcfi, 0);
2547	bf_set(lpfc_reg_fcfi_rctl_match1, reg_fcfi, 0);
2548	bf_set(lpfc_reg_fcfi_rctl_mask1, reg_fcfi, 0);
2549	}
2550	bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
2551	bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
2552	bf_set(lpfc_reg_fcfi_info_index, reg_fcfi,
2553	phba->fcf.current_rec.fcf_indx);
2554	if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
2555	bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
2556	bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
2557	phba->fcf.current_rec.vlan_id);
2558	}
2559	}
2560
2561	/**
2562	* lpfc_reg_fcfi_mrq - Initialize the REG_FCFI_MRQ mailbox command
2563	* @phba: pointer to the hba structure containing the FCF index and RQ ID.
2564	* @mbox: pointer to lpfc mbox command to initialize.
2565	* @mode: 0 to register FCFI, 1 to register MRQs
2566	*
2567	* The REG_FCFI_MRQ mailbox command supports Fibre Channel Forwarders (FCFs).
2568	* The SLI Host uses the command to activate an FCF after it has acquired FCF
2569	* information via a READ_FCF mailbox command. This mailbox command also is used
2570	* to indicate where received unsolicited frames from this FCF will be sent. By
2571	* default this routine will set up the FCF to forward all unsolicited frames
2572	* to the RQ ID passed in the @phba. This can be overridden by the caller for
2573	* more complicated setups.
2574	**/
2575	void
2576	lpfc_reg_fcfi_mrq(struct lpfc_hba *phba, struct lpfcMboxq *mbox, int mode)
2577	{
2578	struct lpfc_mbx_reg_fcfi_mrq *reg_fcfi;
2579
2580	/* This is ONLY for MRQ */
2581	if (phba->cfg_nvmet_mrq <= 1)
2582	return;
2583
2584	memset(mbox, 0, sizeof(*mbox));
2585	reg_fcfi = &mbox->u.mqe.un.reg_fcfi_mrq;
2586	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI_MRQ);
2587	if (mode == 0) {
2588	bf_set(lpfc_reg_fcfi_mrq_info_index, reg_fcfi,
2589	phba->fcf.current_rec.fcf_indx);
2590	if (phba->fcf.current_rec.vlan_id != LPFC_FCOE_NULL_VID) {
2591	bf_set(lpfc_reg_fcfi_mrq_vv, reg_fcfi, 1);
2592	bf_set(lpfc_reg_fcfi_mrq_vlan_tag, reg_fcfi,
2593	phba->fcf.current_rec.vlan_id);
2594	}
2595	return;
2596	}
2597
2598	bf_set(lpfc_reg_fcfi_mrq_rq_id0, reg_fcfi,
2599	phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id);
2600	/* Match NVME frames of type FCP (protocol NVME) - rq_id0 */
2601	bf_set(lpfc_reg_fcfi_mrq_type_match0, reg_fcfi, FC_TYPE_FCP);
2602	bf_set(lpfc_reg_fcfi_mrq_type_mask0, reg_fcfi, 0xff);
2603	bf_set(lpfc_reg_fcfi_mrq_rctl_match0, reg_fcfi, FC_RCTL_DD_UNSOL_CMD);
2604	bf_set(lpfc_reg_fcfi_mrq_rctl_mask0, reg_fcfi, 0xff);
2605	bf_set(lpfc_reg_fcfi_mrq_ptc0, reg_fcfi, 1);
2606	bf_set(lpfc_reg_fcfi_mrq_pt0, reg_fcfi, 1);
2607
2608	bf_set(lpfc_reg_fcfi_mrq_policy, reg_fcfi, 3); /* NVME connection id */
2609	bf_set(lpfc_reg_fcfi_mrq_mode, reg_fcfi, 1);
2610	bf_set(lpfc_reg_fcfi_mrq_filter, reg_fcfi, 1); /* rq_id0 */
2611	bf_set(lpfc_reg_fcfi_mrq_npairs, reg_fcfi, phba->cfg_nvmet_mrq);
2612
2613	bf_set(lpfc_reg_fcfi_mrq_rq_id1, reg_fcfi,
2614	phba->sli4_hba.hdr_rq->queue_id);
2615	/* Match everything - rq_id1 */
2616	bf_set(lpfc_reg_fcfi_mrq_type_match1, reg_fcfi, 0);
2617	bf_set(lpfc_reg_fcfi_mrq_type_mask1, reg_fcfi, 0);
2618	bf_set(lpfc_reg_fcfi_mrq_rctl_match1, reg_fcfi, 0);
2619	bf_set(lpfc_reg_fcfi_mrq_rctl_mask1, reg_fcfi, 0);
2620
2621	bf_set(lpfc_reg_fcfi_mrq_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
2622	bf_set(lpfc_reg_fcfi_mrq_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
2623	}
2624
2625	/**
2626	* lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
2627	* @mbox: pointer to lpfc mbox command to initialize.
2628	* @fcfi: FCFI to be unregistered.
2629	*
2630	* The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
2631	* The SLI Host uses the command to inactivate an FCFI.
2632	**/
2633	void
2634	lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
2635	{
2636	memset(mbox, 0, sizeof(*mbox));
2637	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
2638	bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
2639	}
2640
2641	/**
2642	* lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
2643	* @mbox: pointer to lpfc mbox command to initialize.
2644	* @ndlp: The nodelist structure that describes the RPI to resume.
2645	*
2646	* The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
2647	* link event.
2648	**/
2649	void
2650	lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
2651	{
2652	struct lpfc_hba *phba = ndlp->phba;
2653	struct lpfc_mbx_resume_rpi *resume_rpi;
2654
2655	memset(mbox, 0, sizeof(*mbox));
2656	resume_rpi = &mbox->u.mqe.un.resume_rpi;
2657	bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
2658	bf_set(lpfc_resume_rpi_index, resume_rpi,
2659	phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
2660	bf_set(lpfc_resume_rpi_ii, resume_rpi, RESUME_INDEX_RPI);
2661	resume_rpi->event_tag = ndlp->phba->fc_eventTag;
2662	}
2663
2664