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/delay.h>
26	#include <linux/dma-mapping.h>
27	#include <linux/idr.h>
28	#include <linux/interrupt.h>
29	#include <linux/module.h>
30	#include <linux/kthread.h>
31	#include <linux/pci.h>
32	#include <linux/spinlock.h>
33	#include <linux/sched/clock.h>
34	#include <linux/ctype.h>
35	#include <linux/slab.h>
36	#include <linux/firmware.h>
37	#include <linux/miscdevice.h>
38	#include <linux/percpu.h>
39	#include <linux/irq.h>
40	#include <linux/bitops.h>
41	#include <linux/crash_dump.h>
42	#include <linux/cpu.h>
43	#include <linux/cpuhotplug.h>
44
45	#include <scsi/scsi.h>
46	#include <scsi/scsi_device.h>
47	#include <scsi/scsi_host.h>
48	#include <scsi/scsi_transport_fc.h>
49	#include <scsi/scsi_tcq.h>
50	#include <scsi/fc/fc_fs.h>
51
52	#include "lpfc_hw4.h"
53	#include "lpfc_hw.h"
54	#include "lpfc_sli.h"
55	#include "lpfc_sli4.h"
56	#include "lpfc_nl.h"
57	#include "lpfc_disc.h"
58	#include "lpfc.h"
59	#include "lpfc_scsi.h"
60	#include "lpfc_nvme.h"
61	#include "lpfc_logmsg.h"
62	#include "lpfc_crtn.h"
63	#include "lpfc_vport.h"
64	#include "lpfc_version.h"
65	#include "lpfc_ids.h"
66
67	static enum cpuhp_state lpfc_cpuhp_state;
68	/* Used when mapping IRQ vectors in a driver centric manner */
69	static uint32_t lpfc_present_cpu;
70	static bool lpfc_pldv_detect;
71
72	static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
73	static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
74	static void lpfc_cpuhp_add(struct lpfc_hba *phba);
75	static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
76	static int lpfc_post_rcv_buf(struct lpfc_hba *);
77	static int lpfc_sli4_queue_verify(struct lpfc_hba *);
78	static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
79	static int lpfc_setup_endian_order(struct lpfc_hba *);
80	static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
81	static void lpfc_free_els_sgl_list(struct lpfc_hba *);
82	static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
83	static void lpfc_init_sgl_list(struct lpfc_hba *);
84	static int lpfc_init_active_sgl_array(struct lpfc_hba *);
85	static void lpfc_free_active_sgl(struct lpfc_hba *);
86	static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
87	static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
88	static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
89	static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
90	static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
91	static void lpfc_sli4_disable_intr(struct lpfc_hba *);
92	static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
93	static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
94	static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
95	static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
96	static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
97	static void lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba);
98	static void lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba);
99
100	static struct scsi_transport_template *lpfc_transport_template = NULL;
101	static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
102	static DEFINE_IDR(lpfc_hba_index);
103	#define LPFC_NVMET_BUF_POST 254
104	static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
105	static void lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts);
106
107	/**
108	* lpfc_config_port_prep - Perform lpfc initialization prior to config port
109	* @phba: pointer to lpfc hba data structure.
110	*
111	* This routine will do LPFC initialization prior to issuing the CONFIG_PORT
112	* mailbox command. It retrieves the revision information from the HBA and
113	* collects the Vital Product Data (VPD) about the HBA for preparing the
114	* configuration of the HBA.
115	*
116	* Return codes:
117	* 0 - success.
118	* -ERESTART - requests the SLI layer to reset the HBA and try again.
119	* Any other value - indicates an error.
120	**/
121	int
122	lpfc_config_port_prep(struct lpfc_hba *phba)
123	{
124	lpfc_vpd_t *vp = &phba->vpd;
125	int i = 0, rc;
126	LPFC_MBOXQ_t *pmb;
127	MAILBOX_t *mb;
128	char *lpfc_vpd_data = NULL;
129	uint16_t offset = 0;
130	static char licensed[56] =
131	"key unlock for use with gnu public licensed code only\0";
132	static int init_key = 1;
133
134	pmb = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
135	if (!pmb) {
136	phba->link_state = LPFC_HBA_ERROR;
137	return -ENOMEM;
138	}
139
140	mb = &pmb->u.mb;
141	phba->link_state = LPFC_INIT_MBX_CMDS;
142
143	if (lpfc_is_LC_HBA(device: phba->pcidev->device)) {
144	if (init_key) {
145	uint32_t *ptext = (uint32_t *) licensed;
146
147	for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
148	*ptext = cpu_to_be32(*ptext);
149	init_key = 0;
150	}
151
152	lpfc_read_nv(phba, pmb);
153	memset((char*)mb->un.varRDnvp.rsvd3, 0,
154	sizeof (mb->un.varRDnvp.rsvd3));
155	memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
156	sizeof (licensed));
157
158	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
159
160	if (rc != MBX_SUCCESS) {
161	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
162	"0324 Config Port initialization "
163	"error, mbxCmd x%x READ_NVPARM, "
164	"mbxStatus x%x\n",
165	mb->mbxCommand, mb->mbxStatus);
166	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
167	return -ERESTART;
168	}
169	memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
170	sizeof(phba->wwnn));
171	memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
172	sizeof(phba->wwpn));
173	}
174
175	/*
176	* Clear all option bits except LPFC_SLI3_BG_ENABLED,
177	* which was already set in lpfc_get_cfgparam()
178	*/
179	phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
180
181	/* Setup and issue mailbox READ REV command */
182	lpfc_read_rev(phba, pmb);
183	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
184	if (rc != MBX_SUCCESS) {
185	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
186	"0439 Adapter failed to init, mbxCmd x%x "
187	"READ_REV, mbxStatus x%x\n",
188	mb->mbxCommand, mb->mbxStatus);
189	mempool_free( element: pmb, pool: phba->mbox_mem_pool);
190	return -ERESTART;
191	}
192
193
194	/*
195	* The value of rr must be 1 since the driver set the cv field to 1.
196	* This setting requires the FW to set all revision fields.
197	*/
198	if (mb->un.varRdRev.rr == 0) {
199	vp->rev.rBit = 0;
200	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
201	"0440 Adapter failed to init, READ_REV has "
202	"missing revision information.\n");
203	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
204	return -ERESTART;
205	}
206
207	if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
208	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
209	return -EINVAL;
210	}
211
212	/* Save information as VPD data */
213	vp->rev.rBit = 1;
214	memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
215	vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
216	memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
217	vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
218	memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
219	vp->rev.biuRev = mb->un.varRdRev.biuRev;
220	vp->rev.smRev = mb->un.varRdRev.smRev;
221	vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
222	vp->rev.endecRev = mb->un.varRdRev.endecRev;
223	vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
224	vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
225	vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
226	vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
227	vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
228	vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
229
230	/* If the sli feature level is less then 9, we must
231	* tear down all RPIs and VPIs on link down if NPIV
232	* is enabled.
233	*/
234	if (vp->rev.feaLevelHigh < 9)
235	phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
236
237	if (lpfc_is_LC_HBA(device: phba->pcidev->device))
238	memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
239	sizeof (phba->RandomData));
240
241	/* Get adapter VPD information */
242	lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
243	if (!lpfc_vpd_data)
244	goto out_free_mbox;
245	do {
246	lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
247	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
248
249	if (rc != MBX_SUCCESS) {
250	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
251	"0441 VPD not present on adapter, "
252	"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
253	mb->mbxCommand, mb->mbxStatus);
254	mb->un.varDmp.word_cnt = 0;
255	}
256	/* dump mem may return a zero when finished or we got a
257	* mailbox error, either way we are done.
258	*/
259	if (mb->un.varDmp.word_cnt == 0)
260	break;
261
262	if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
263	mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
264	lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
265	lpfc_vpd_data + offset,
266	mb->un.varDmp.word_cnt);
267	offset += mb->un.varDmp.word_cnt;
268	} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
269
270	lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
271
272	kfree(objp: lpfc_vpd_data);
273	out_free_mbox:
274	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
275	return 0;
276	}
277
278	/**
279	* lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
280	* @phba: pointer to lpfc hba data structure.
281	* @pmboxq: pointer to the driver internal queue element for mailbox command.
282	*
283	* This is the completion handler for driver's configuring asynchronous event
284	* mailbox command to the device. If the mailbox command returns successfully,
285	* it will set internal async event support flag to 1; otherwise, it will
286	* set internal async event support flag to 0.
287	**/
288	static void
289	lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
290	{
291	if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
292	phba->temp_sensor_support = 1;
293	else
294	phba->temp_sensor_support = 0;
295	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
296	return;
297	}
298
299	/**
300	* lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
301	* @phba: pointer to lpfc hba data structure.
302	* @pmboxq: pointer to the driver internal queue element for mailbox command.
303	*
304	* This is the completion handler for dump mailbox command for getting
305	* wake up parameters. When this command complete, the response contain
306	* Option rom version of the HBA. This function translate the version number
307	* into a human readable string and store it in OptionROMVersion.
308	**/
309	static void
310	lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
311	{
312	struct prog_id *prg;
313	uint32_t prog_id_word;
314	char dist = ' ';
315	/* character array used for decoding dist type. */
316	char dist_char[] = "nabx";
317
318	if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
319	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
320	return;
321	}
322
323	prg = (struct prog_id *) &prog_id_word;
324
325	/* word 7 contain option rom version */
326	prog_id_word = pmboxq->u.mb.un.varWords[7];
327
328	/* Decode the Option rom version word to a readable string */
329	dist = dist_char[prg->dist];
330
331	if ((prg->dist == 3) && (prg->num == 0))
332	snprintf(buf: phba->OptionROMVersion, size: 32, fmt: "%d.%d%d",
333	prg->ver, prg->rev, prg->lev);
334	else
335	snprintf(buf: phba->OptionROMVersion, size: 32, fmt: "%d.%d%d%c%d",
336	prg->ver, prg->rev, prg->lev,
337	dist, prg->num);
338	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
339	return;
340	}
341
342	/**
343	* lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
344	* @vport: pointer to lpfc vport data structure.
345	*
346	*
347	* Return codes
348	* None.
349	**/
350	void
351	lpfc_update_vport_wwn(struct lpfc_vport *vport)
352	{
353	struct lpfc_hba *phba = vport->phba;
354
355	/*
356	* If the name is empty or there exists a soft name
357	* then copy the service params name, otherwise use the fc name
358	*/
359	if (vport->fc_nodename.u.wwn[0] == 0)
360	memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
361	sizeof(struct lpfc_name));
362	else
363	memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
364	sizeof(struct lpfc_name));
365
366	/*
367	* If the port name has changed, then set the Param changes flag
368	* to unreg the login
369	*/
370	if (vport->fc_portname.u.wwn[0] != 0 &&
371	memcmp(p: &vport->fc_portname, q: &vport->fc_sparam.portName,
372	size: sizeof(struct lpfc_name))) {
373	vport->vport_flag |= FAWWPN_PARAM_CHG;
374
375	if (phba->sli_rev == LPFC_SLI_REV4 &&
376	vport->port_type == LPFC_PHYSICAL_PORT &&
377	phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) {
378	if (!(phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG))
379	phba->sli4_hba.fawwpn_flag &=
380	~LPFC_FAWWPN_FABRIC;
381	lpfc_printf_log(phba, KERN_INFO,
382	LOG_SLI | LOG_DISCOVERY | LOG_ELS,
383	"2701 FA-PWWN change WWPN from %llx to "
384	"%llx: vflag x%x fawwpn_flag x%x\n",
385	wwn_to_u64(vport->fc_portname.u.wwn),
386	wwn_to_u64
387	(vport->fc_sparam.portName.u.wwn),
388	vport->vport_flag,
389	phba->sli4_hba.fawwpn_flag);
390	memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
391	sizeof(struct lpfc_name));
392	}
393	}
394
395	if (vport->fc_portname.u.wwn[0] == 0)
396	memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
397	sizeof(struct lpfc_name));
398	else
399	memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
400	sizeof(struct lpfc_name));
401	}
402
403	/**
404	* lpfc_config_port_post - Perform lpfc initialization after config port
405	* @phba: pointer to lpfc hba data structure.
406	*
407	* This routine will do LPFC initialization after the CONFIG_PORT mailbox
408	* command call. It performs all internal resource and state setups on the
409	* port: post IOCB buffers, enable appropriate host interrupt attentions,
410	* ELS ring timers, etc.
411	*
412	* Return codes
413	* 0 - success.
414	* Any other value - error.
415	**/
416	int
417	lpfc_config_port_post(struct lpfc_hba *phba)
418	{
419	struct lpfc_vport *vport = phba->pport;
420	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
421	LPFC_MBOXQ_t *pmb;
422	MAILBOX_t *mb;
423	struct lpfc_dmabuf *mp;
424	struct lpfc_sli *psli = &phba->sli;
425	uint32_t status, timeout;
426	int i, j;
427	int rc;
428
429	spin_lock_irq(lock: &phba->hbalock);
430	/*
431	* If the Config port completed correctly the HBA is not
432	* over heated any more.
433	*/
434	if (phba->over_temp_state == HBA_OVER_TEMP)
435	phba->over_temp_state = HBA_NORMAL_TEMP;
436	spin_unlock_irq(lock: &phba->hbalock);
437
438	pmb = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
439	if (!pmb) {
440	phba->link_state = LPFC_HBA_ERROR;
441	return -ENOMEM;
442	}
443	mb = &pmb->u.mb;
444
445	/* Get login parameters for NID. */
446	rc = lpfc_read_sparam(phba, pmb, 0);
447	if (rc) {
448	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
449	return -ENOMEM;
450	}
451
452	pmb->vport = vport;
453	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
454	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
455	"0448 Adapter failed init, mbxCmd x%x "
456	"READ_SPARM mbxStatus x%x\n",
457	mb->mbxCommand, mb->mbxStatus);
458	phba->link_state = LPFC_HBA_ERROR;
459	lpfc_mbox_rsrc_cleanup(phba, mbox: pmb, locked: MBOX_THD_UNLOCKED);
460	return -EIO;
461	}
462
463	mp = pmb->ctx_buf;
464
465	/* This dmabuf was allocated by lpfc_read_sparam. The dmabuf is no
466	* longer needed. Prevent unintended ctx_buf access as the mbox is
467	* reused.
468	*/
469	memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
470	lpfc_mbuf_free(phba, mp->virt, mp->phys);
471	kfree(objp: mp);
472	pmb->ctx_buf = NULL;
473	lpfc_update_vport_wwn(vport);
474
475	/* Update the fc_host data structures with new wwn. */
476	fc_host_node_name(shost) = wwn_to_u64(wwn: vport->fc_nodename.u.wwn);
477	fc_host_port_name(shost) = wwn_to_u64(wwn: vport->fc_portname.u.wwn);
478	fc_host_max_npiv_vports(shost) = phba->max_vpi;
479
480	/* If no serial number in VPD data, use low 6 bytes of WWNN */
481	/* This should be consolidated into parse_vpd ? - mr */
482	if (phba->SerialNumber[0] == 0) {
483	uint8_t *outptr;
484
485	outptr = &vport->fc_nodename.u.s.IEEE[0];
486	for (i = 0; i < 12; i++) {
487	status = *outptr++;
488	j = ((status & 0xf0) >> 4);
489	if (j <= 9)
490	phba->SerialNumber[i] =
491	(char)((uint8_t) 0x30 + (uint8_t) j);
492	else
493	phba->SerialNumber[i] =
494	(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
495	i++;
496	j = (status & 0xf);
497	if (j <= 9)
498	phba->SerialNumber[i] =
499	(char)((uint8_t) 0x30 + (uint8_t) j);
500	else
501	phba->SerialNumber[i] =
502	(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
503	}
504	}
505
506	lpfc_read_config(phba, pmb);
507	pmb->vport = vport;
508	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
509	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
510	"0453 Adapter failed to init, mbxCmd x%x "
511	"READ_CONFIG, mbxStatus x%x\n",
512	mb->mbxCommand, mb->mbxStatus);
513	phba->link_state = LPFC_HBA_ERROR;
514	mempool_free( element: pmb, pool: phba->mbox_mem_pool);
515	return -EIO;
516	}
517
518	/* Check if the port is disabled */
519	lpfc_sli_read_link_ste(phba);
520
521	/* Reset the DFT_HBA_Q_DEPTH to the max xri */
522	if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
523	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
524	"3359 HBA queue depth changed from %d to %d\n",
525	phba->cfg_hba_queue_depth,
526	mb->un.varRdConfig.max_xri);
527	phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
528	}
529
530	phba->lmt = mb->un.varRdConfig.lmt;
531
532	/* Get the default values for Model Name and Description */
533	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
534
535	phba->link_state = LPFC_LINK_DOWN;
536
537	/* Only process IOCBs on ELS ring till hba_state is READY */
538	if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
539	psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
540	if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
541	psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
542
543	/* Post receive buffers for desired rings */
544	if (phba->sli_rev != 3)
545	lpfc_post_rcv_buf(phba);
546
547	/*
548	* Configure HBA MSI-X attention conditions to messages if MSI-X mode
549	*/
550	if (phba->intr_type == MSIX) {
551	rc = lpfc_config_msi(phba, pmb);
552	if (rc) {
553	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
554	return -EIO;
555	}
556	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
557	if (rc != MBX_SUCCESS) {
558	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
559	"0352 Config MSI mailbox command "
560	"failed, mbxCmd x%x, mbxStatus x%x\n",
561	pmb->u.mb.mbxCommand,
562	pmb->u.mb.mbxStatus);
563	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
564	return -EIO;
565	}
566	}
567
568	spin_lock_irq(lock: &phba->hbalock);
569	/* Initialize ERATT handling flag */
570	phba->hba_flag &= ~HBA_ERATT_HANDLED;
571
572	/* Enable appropriate host interrupts */
573	if (lpfc_readl(addr: phba->HCregaddr, data: &status)) {
574	spin_unlock_irq(lock: &phba->hbalock);
575	return -EIO;
576	}
577	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
578	if (psli->num_rings > 0)
579	status |= HC_R0INT_ENA;
580	if (psli->num_rings > 1)
581	status |= HC_R1INT_ENA;
582	if (psli->num_rings > 2)
583	status |= HC_R2INT_ENA;
584	if (psli->num_rings > 3)
585	status |= HC_R3INT_ENA;
586
587	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
588	(phba->cfg_poll & DISABLE_FCP_RING_INT))
589	status &= ~(HC_R0INT_ENA);
590
591	writel(val: status, addr: phba->HCregaddr);
592	readl(addr: phba->HCregaddr); /* flush */
593	spin_unlock_irq(lock: &phba->hbalock);
594
595	/* Set up ring-0 (ELS) timer */
596	timeout = phba->fc_ratov * 2;
597	mod_timer(timer: &vport->els_tmofunc,
598	expires: jiffies + msecs_to_jiffies(m: 1000 * timeout));
599	/* Set up heart beat (HB) timer */
600	mod_timer(timer: &phba->hb_tmofunc,
601	expires: jiffies + msecs_to_jiffies(m: 1000 * LPFC_HB_MBOX_INTERVAL));
602	phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
603	phba->last_completion_time = jiffies;
604	/* Set up error attention (ERATT) polling timer */
605	mod_timer(timer: &phba->eratt_poll,
606	expires: jiffies + msecs_to_jiffies(m: 1000 * phba->eratt_poll_interval));
607
608	if (phba->hba_flag & LINK_DISABLED) {
609	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
610	"2598 Adapter Link is disabled.\n");
611	lpfc_down_link(phba, pmb);
612	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
613	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
614	if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
615	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
616	"2599 Adapter failed to issue DOWN_LINK"
617	" mbox command rc 0x%x\n", rc);
618
619	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
620	return -EIO;
621	}
622	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
623	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
624	rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
625	if (rc)
626	return rc;
627	}
628	/* MBOX buffer will be freed in mbox compl */
629	pmb = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
630	if (!pmb) {
631	phba->link_state = LPFC_HBA_ERROR;
632	return -ENOMEM;
633	}
634
635	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
636	pmb->mbox_cmpl = lpfc_config_async_cmpl;
637	pmb->vport = phba->pport;
638	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
639
640	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
641	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
642	"0456 Adapter failed to issue "
643	"ASYNCEVT_ENABLE mbox status x%x\n",
644	rc);
645	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
646	}
647
648	/* Get Option rom version */
649	pmb = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
650	if (!pmb) {
651	phba->link_state = LPFC_HBA_ERROR;
652	return -ENOMEM;
653	}
654
655	lpfc_dump_wakeup_param(phba, pmb);
656	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
657	pmb->vport = phba->pport;
658	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
659
660	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
661	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
662	"0435 Adapter failed "
663	"to get Option ROM version status x%x\n", rc);
664	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
665	}
666
667	return 0;
668	}
669
670	/**
671	* lpfc_sli4_refresh_params - update driver copy of params.
672	* @phba: Pointer to HBA context object.
673	*
674	* This is called to refresh driver copy of dynamic fields from the
675	* common_get_sli4_parameters descriptor.
676	**/
677	int
678	lpfc_sli4_refresh_params(struct lpfc_hba *phba)
679	{
680	LPFC_MBOXQ_t *mboxq;
681	struct lpfc_mqe *mqe;
682	struct lpfc_sli4_parameters *mbx_sli4_parameters;
683	int length, rc;
684
685	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
686	if (!mboxq)
687	return -ENOMEM;
688
689	mqe = &mboxq->u.mqe;
690	/* Read the port's SLI4 Config Parameters */
691	length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
692	sizeof(struct lpfc_sli4_cfg_mhdr));
693	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
694	LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
695	length, LPFC_SLI4_MBX_EMBED);
696
697	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
698	if (unlikely(rc)) {
699	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
700	return rc;
701	}
702	mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
703	phba->sli4_hba.pc_sli4_params.mi_cap =
704	bf_get(cfg_mi_ver, mbx_sli4_parameters);
705
706	/* Are we forcing MI off via module parameter? */
707	if (phba->cfg_enable_mi)
708	phba->sli4_hba.pc_sli4_params.mi_ver =
709	bf_get(cfg_mi_ver, mbx_sli4_parameters);
710	else
711	phba->sli4_hba.pc_sli4_params.mi_ver = 0;
712
713	phba->sli4_hba.pc_sli4_params.cmf =
714	bf_get(cfg_cmf, mbx_sli4_parameters);
715	phba->sli4_hba.pc_sli4_params.pls =
716	bf_get(cfg_pvl, mbx_sli4_parameters);
717
718	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
719	return rc;
720	}
721
722	/**
723	* lpfc_hba_init_link - Initialize the FC link
724	* @phba: pointer to lpfc hba data structure.
725	* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
726	*
727	* This routine will issue the INIT_LINK mailbox command call.
728	* It is available to other drivers through the lpfc_hba data
729	* structure for use as a delayed link up mechanism with the
730	* module parameter lpfc_suppress_link_up.
731	*
732	* Return code
733	* 0 - success
734	* Any other value - error
735	**/
736	static int
737	lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
738	{
739	return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
740	}
741
742	/**
743	* lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
744	* @phba: pointer to lpfc hba data structure.
745	* @fc_topology: desired fc topology.
746	* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
747	*
748	* This routine will issue the INIT_LINK mailbox command call.
749	* It is available to other drivers through the lpfc_hba data
750	* structure for use as a delayed link up mechanism with the
751	* module parameter lpfc_suppress_link_up.
752	*
753	* Return code
754	* 0 - success
755	* Any other value - error
756	**/
757	int
758	lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
759	uint32_t flag)
760	{
761	struct lpfc_vport *vport = phba->pport;
762	LPFC_MBOXQ_t *pmb;
763	MAILBOX_t *mb;
764	int rc;
765
766	pmb = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
767	if (!pmb) {
768	phba->link_state = LPFC_HBA_ERROR;
769	return -ENOMEM;
770	}
771	mb = &pmb->u.mb;
772	pmb->vport = vport;
773
774	if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
775	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
776	!(phba->lmt & LMT_1Gb)) ||
777	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
778	!(phba->lmt & LMT_2Gb)) ||
779	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
780	!(phba->lmt & LMT_4Gb)) ||
781	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
782	!(phba->lmt & LMT_8Gb)) ||
783	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
784	!(phba->lmt & LMT_10Gb)) ||
785	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
786	!(phba->lmt & LMT_16Gb)) ||
787	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
788	!(phba->lmt & LMT_32Gb)) ||
789	((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
790	!(phba->lmt & LMT_64Gb))) {
791	/* Reset link speed to auto */
792	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
793	"1302 Invalid speed for this board:%d "
794	"Reset link speed to auto.\n",
795	phba->cfg_link_speed);
796	phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
797	}
798	lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
799	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
800	if (phba->sli_rev < LPFC_SLI_REV4)
801	lpfc_set_loopback_flag(phba);
802	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
803	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
804	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
805	"0498 Adapter failed to init, mbxCmd x%x "
806	"INIT_LINK, mbxStatus x%x\n",
807	mb->mbxCommand, mb->mbxStatus);
808	if (phba->sli_rev <= LPFC_SLI_REV3) {
809	/* Clear all interrupt enable conditions */
810	writel(val: 0, addr: phba->HCregaddr);
811	readl(addr: phba->HCregaddr); /* flush */
812	/* Clear all pending interrupts */
813	writel(val: 0xffffffff, addr: phba->HAregaddr);
814	readl(addr: phba->HAregaddr); /* flush */
815	}
816	phba->link_state = LPFC_HBA_ERROR;
817	if (rc != MBX_BUSY || flag == MBX_POLL)
818	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
819	return -EIO;
820	}
821	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
822	if (flag == MBX_POLL)
823	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
824
825	return 0;
826	}
827
828	/**
829	* lpfc_hba_down_link - this routine downs the FC link
830	* @phba: pointer to lpfc hba data structure.
831	* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
832	*
833	* This routine will issue the DOWN_LINK mailbox command call.
834	* It is available to other drivers through the lpfc_hba data
835	* structure for use to stop the link.
836	*
837	* Return code
838	* 0 - success
839	* Any other value - error
840	**/
841	static int
842	lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
843	{
844	LPFC_MBOXQ_t *pmb;
845	int rc;
846
847	pmb = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
848	if (!pmb) {
849	phba->link_state = LPFC_HBA_ERROR;
850	return -ENOMEM;
851	}
852
853	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
854	"0491 Adapter Link is disabled.\n");
855	lpfc_down_link(phba, pmb);
856	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
857	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
858	if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
859	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
860	"2522 Adapter failed to issue DOWN_LINK"
861	" mbox command rc 0x%x\n", rc);
862
863	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
864	return -EIO;
865	}
866	if (flag == MBX_POLL)
867	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
868
869	return 0;
870	}
871
872	/**
873	* lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
874	* @phba: pointer to lpfc HBA data structure.
875	*
876	* This routine will do LPFC uninitialization before the HBA is reset when
877	* bringing down the SLI Layer.
878	*
879	* Return codes
880	* 0 - success.
881	* Any other value - error.
882	**/
883	int
884	lpfc_hba_down_prep(struct lpfc_hba *phba)
885	{
886	struct lpfc_vport **vports;
887	int i;
888
889	if (phba->sli_rev <= LPFC_SLI_REV3) {
890	/* Disable interrupts */
891	writel(val: 0, addr: phba->HCregaddr);
892	readl(addr: phba->HCregaddr); /* flush */
893	}
894
895	if (test_bit(FC_UNLOADING, &phba->pport->load_flag))
896	lpfc_cleanup_discovery_resources(phba->pport);
897	else {
898	vports = lpfc_create_vport_work_array(phba);
899	if (vports != NULL)
900	for (i = 0; i <= phba->max_vports &&
901	vports[i] != NULL; i++)
902	lpfc_cleanup_discovery_resources(vports[i]);
903	lpfc_destroy_vport_work_array(phba, vports);
904	}
905	return 0;
906	}
907
908	/**
909	* lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
910	* rspiocb which got deferred
911	*
912	* @phba: pointer to lpfc HBA data structure.
913	*
914	* This routine will cleanup completed slow path events after HBA is reset
915	* when bringing down the SLI Layer.
916	*
917	*
918	* Return codes
919	* void.
920	**/
921	static void
922	lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
923	{
924	struct lpfc_iocbq *rspiocbq;
925	struct hbq_dmabuf *dmabuf;
926	struct lpfc_cq_event *cq_event;
927
928	spin_lock_irq(lock: &phba->hbalock);
929	phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
930	spin_unlock_irq(lock: &phba->hbalock);
931
932	while (!list_empty(head: &phba->sli4_hba.sp_queue_event)) {
933	/* Get the response iocb from the head of work queue */
934	spin_lock_irq(lock: &phba->hbalock);
935	list_remove_head(&phba->sli4_hba.sp_queue_event,
936	cq_event, struct lpfc_cq_event, list);
937	spin_unlock_irq(lock: &phba->hbalock);
938
939	switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
940	case CQE_CODE_COMPL_WQE:
941	rspiocbq = container_of(cq_event, struct lpfc_iocbq,
942	cq_event);
943	lpfc_sli_release_iocbq(phba, rspiocbq);
944	break;
945	case CQE_CODE_RECEIVE:
946	case CQE_CODE_RECEIVE_V1:
947	dmabuf = container_of(cq_event, struct hbq_dmabuf,
948	cq_event);
949	lpfc_in_buf_free(phba, &dmabuf->dbuf);
950	}
951	}
952	}
953
954	/**
955	* lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
956	* @phba: pointer to lpfc HBA data structure.
957	*
958	* This routine will cleanup posted ELS buffers after the HBA is reset
959	* when bringing down the SLI Layer.
960	*
961	*
962	* Return codes
963	* void.
964	**/
965	static void
966	lpfc_hba_free_post_buf(struct lpfc_hba *phba)
967	{
968	struct lpfc_sli *psli = &phba->sli;
969	struct lpfc_sli_ring *pring;
970	struct lpfc_dmabuf *mp, *next_mp;
971	LIST_HEAD(buflist);
972	int count;
973
974	if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
975	lpfc_sli_hbqbuf_free_all(phba);
976	else {
977	/* Cleanup preposted buffers on the ELS ring */
978	pring = &psli->sli3_ring[LPFC_ELS_RING];
979	spin_lock_irq(lock: &phba->hbalock);
980	list_splice_init(list: &pring->postbufq, head: &buflist);
981	spin_unlock_irq(lock: &phba->hbalock);
982
983	count = 0;
984	list_for_each_entry_safe(mp, next_mp, &buflist, list) {
985	list_del(entry: &mp->list);
986	count++;
987	lpfc_mbuf_free(phba, mp->virt, mp->phys);
988	kfree(objp: mp);
989	}
990
991	spin_lock_irq(lock: &phba->hbalock);
992	pring->postbufq_cnt -= count;
993	spin_unlock_irq(lock: &phba->hbalock);
994	}
995	}
996
997	/**
998	* lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
999	* @phba: pointer to lpfc HBA data structure.
1000	*
1001	* This routine will cleanup the txcmplq after the HBA is reset when bringing
1002	* down the SLI Layer.
1003	*
1004	* Return codes
1005	* void
1006	**/
1007	static void
1008	lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
1009	{
1010	struct lpfc_sli *psli = &phba->sli;
1011	struct lpfc_queue *qp = NULL;
1012	struct lpfc_sli_ring *pring;
1013	LIST_HEAD(completions);
1014	int i;
1015	struct lpfc_iocbq *piocb, *next_iocb;
1016
1017	if (phba->sli_rev != LPFC_SLI_REV4) {
1018	for (i = 0; i < psli->num_rings; i++) {
1019	pring = &psli->sli3_ring[i];
1020	spin_lock_irq(lock: &phba->hbalock);
1021	/* At this point in time the HBA is either reset or DOA
1022	* Nothing should be on txcmplq as it will
1023	* NEVER complete.
1024	*/
1025	list_splice_init(list: &pring->txcmplq, head: &completions);
1026	pring->txcmplq_cnt = 0;
1027	spin_unlock_irq(lock: &phba->hbalock);
1028
1029	lpfc_sli_abort_iocb_ring(phba, pring);
1030	}
1031	/* Cancel all the IOCBs from the completions list */
1032	lpfc_sli_cancel_iocbs(phba, &completions,
1033	IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1034	return;
1035	}
1036	list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1037	pring = qp->pring;
1038	if (!pring)
1039	continue;
1040	spin_lock_irq(lock: &pring->ring_lock);
1041	list_for_each_entry_safe(piocb, next_iocb,
1042	&pring->txcmplq, list)
1043	piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
1044	list_splice_init(list: &pring->txcmplq, head: &completions);
1045	pring->txcmplq_cnt = 0;
1046	spin_unlock_irq(lock: &pring->ring_lock);
1047	lpfc_sli_abort_iocb_ring(phba, pring);
1048	}
1049	/* Cancel all the IOCBs from the completions list */
1050	lpfc_sli_cancel_iocbs(phba, &completions,
1051	IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1052	}
1053
1054	/**
1055	* lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1056	* @phba: pointer to lpfc HBA data structure.
1057	*
1058	* This routine will do uninitialization after the HBA is reset when bring
1059	* down the SLI Layer.
1060	*
1061	* Return codes
1062	* 0 - success.
1063	* Any other value - error.
1064	**/
1065	static int
1066	lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1067	{
1068	lpfc_hba_free_post_buf(phba);
1069	lpfc_hba_clean_txcmplq(phba);
1070	return 0;
1071	}
1072
1073	/**
1074	* lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1075	* @phba: pointer to lpfc HBA data structure.
1076	*
1077	* This routine will do uninitialization after the HBA is reset when bring
1078	* down the SLI Layer.
1079	*
1080	* Return codes
1081	* 0 - success.
1082	* Any other value - error.
1083	**/
1084	static int
1085	lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1086	{
1087	struct lpfc_io_buf *psb, *psb_next;
1088	struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1089	struct lpfc_sli4_hdw_queue *qp;
1090	LIST_HEAD(aborts);
1091	LIST_HEAD(nvme_aborts);
1092	LIST_HEAD(nvmet_aborts);
1093	struct lpfc_sglq *sglq_entry = NULL;
1094	int cnt, idx;
1095
1096
1097	lpfc_sli_hbqbuf_free_all(phba);
1098	lpfc_hba_clean_txcmplq(phba);
1099
1100	/* At this point in time the HBA is either reset or DOA. Either
1101	* way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1102	* on the lpfc_els_sgl_list so that it can either be freed if the
1103	* driver is unloading or reposted if the driver is restarting
1104	* the port.
1105	*/
1106
1107	/* sgl_list_lock required because worker thread uses this
1108	* list.
1109	*/
1110	spin_lock_irq(lock: &phba->sli4_hba.sgl_list_lock);
1111	list_for_each_entry(sglq_entry,
1112	&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1113	sglq_entry->state = SGL_FREED;
1114
1115	list_splice_init(list: &phba->sli4_hba.lpfc_abts_els_sgl_list,
1116	head: &phba->sli4_hba.lpfc_els_sgl_list);
1117
1118
1119	spin_unlock_irq(lock: &phba->sli4_hba.sgl_list_lock);
1120
1121	/* abts_xxxx_buf_list_lock required because worker thread uses this
1122	* list.
1123	*/
1124	spin_lock_irq(lock: &phba->hbalock);
1125	cnt = 0;
1126	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1127	qp = &phba->sli4_hba.hdwq[idx];
1128
1129	spin_lock(lock: &qp->abts_io_buf_list_lock);
1130	list_splice_init(list: &qp->lpfc_abts_io_buf_list,
1131	head: &aborts);
1132
1133	list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1134	psb->pCmd = NULL;
1135	psb->status = IOSTAT_SUCCESS;
1136	cnt++;
1137	}
1138	spin_lock(lock: &qp->io_buf_list_put_lock);
1139	list_splice_init(list: &aborts, head: &qp->lpfc_io_buf_list_put);
1140	qp->put_io_bufs += qp->abts_scsi_io_bufs;
1141	qp->put_io_bufs += qp->abts_nvme_io_bufs;
1142	qp->abts_scsi_io_bufs = 0;
1143	qp->abts_nvme_io_bufs = 0;
1144	spin_unlock(lock: &qp->io_buf_list_put_lock);
1145	spin_unlock(lock: &qp->abts_io_buf_list_lock);
1146	}
1147	spin_unlock_irq(lock: &phba->hbalock);
1148
1149	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1150	spin_lock_irq(lock: &phba->sli4_hba.abts_nvmet_buf_list_lock);
1151	list_splice_init(list: &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1152	head: &nvmet_aborts);
1153	spin_unlock_irq(lock: &phba->sli4_hba.abts_nvmet_buf_list_lock);
1154	list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1155	ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1156	lpfc_nvmet_ctxbuf_post(phba, ctxp: ctxp->ctxbuf);
1157	}
1158	}
1159
1160	lpfc_sli4_free_sp_events(phba);
1161	return cnt;
1162	}
1163
1164	/**
1165	* lpfc_hba_down_post - Wrapper func for hba down post routine
1166	* @phba: pointer to lpfc HBA data structure.
1167	*
1168	* This routine wraps the actual SLI3 or SLI4 routine for performing
1169	* uninitialization after the HBA is reset when bring down the SLI Layer.
1170	*
1171	* Return codes
1172	* 0 - success.
1173	* Any other value - error.
1174	**/
1175	int
1176	lpfc_hba_down_post(struct lpfc_hba *phba)
1177	{
1178	return (*phba->lpfc_hba_down_post)(phba);
1179	}
1180
1181	/**
1182	* lpfc_hb_timeout - The HBA-timer timeout handler
1183	* @t: timer context used to obtain the pointer to lpfc hba data structure.
1184	*
1185	* This is the HBA-timer timeout handler registered to the lpfc driver. When
1186	* this timer fires, a HBA timeout event shall be posted to the lpfc driver
1187	* work-port-events bitmap and the worker thread is notified. This timeout
1188	* event will be used by the worker thread to invoke the actual timeout
1189	* handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1190	* be performed in the timeout handler and the HBA timeout event bit shall
1191	* be cleared by the worker thread after it has taken the event bitmap out.
1192	**/
1193	static void
1194	lpfc_hb_timeout(struct timer_list *t)
1195	{
1196	struct lpfc_hba *phba;
1197	uint32_t tmo_posted;
1198	unsigned long iflag;
1199
1200	phba = from_timer(phba, t, hb_tmofunc);
1201
1202	/* Check for heart beat timeout conditions */
1203	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1204	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1205	if (!tmo_posted)
1206	phba->pport->work_port_events |= WORKER_HB_TMO;
1207	spin_unlock_irqrestore(lock: &phba->pport->work_port_lock, flags: iflag);
1208
1209	/* Tell the worker thread there is work to do */
1210	if (!tmo_posted)
1211	lpfc_worker_wake_up(phba);
1212	return;
1213	}
1214
1215	/**
1216	* lpfc_rrq_timeout - The RRQ-timer timeout handler
1217	* @t: timer context used to obtain the pointer to lpfc hba data structure.
1218	*
1219	* This is the RRQ-timer timeout handler registered to the lpfc driver. When
1220	* this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1221	* work-port-events bitmap and the worker thread is notified. This timeout
1222	* event will be used by the worker thread to invoke the actual timeout
1223	* handler routine, lpfc_rrq_handler. Any periodical operations will
1224	* be performed in the timeout handler and the RRQ timeout event bit shall
1225	* be cleared by the worker thread after it has taken the event bitmap out.
1226	**/
1227	static void
1228	lpfc_rrq_timeout(struct timer_list *t)
1229	{
1230	struct lpfc_hba *phba;
1231	unsigned long iflag;
1232
1233	phba = from_timer(phba, t, rrq_tmr);
1234	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1235	if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))
1236	phba->hba_flag |= HBA_RRQ_ACTIVE;
1237	else
1238	phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1239	spin_unlock_irqrestore(lock: &phba->pport->work_port_lock, flags: iflag);
1240
1241	if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))
1242	lpfc_worker_wake_up(phba);
1243	}
1244
1245	/**
1246	* lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1247	* @phba: pointer to lpfc hba data structure.
1248	* @pmboxq: pointer to the driver internal queue element for mailbox command.
1249	*
1250	* This is the callback function to the lpfc heart-beat mailbox command.
1251	* If configured, the lpfc driver issues the heart-beat mailbox command to
1252	* the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1253	* heart-beat mailbox command is issued, the driver shall set up heart-beat
1254	* timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1255	* heart-beat outstanding state. Once the mailbox command comes back and
1256	* no error conditions detected, the heart-beat mailbox command timer is
1257	* reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1258	* state is cleared for the next heart-beat. If the timer expired with the
1259	* heart-beat outstanding state set, the driver will put the HBA offline.
1260	**/
1261	static void
1262	lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1263	{
1264	unsigned long drvr_flag;
1265
1266	spin_lock_irqsave(&phba->hbalock, drvr_flag);
1267	phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1268	spin_unlock_irqrestore(lock: &phba->hbalock, flags: drvr_flag);
1269
1270	/* Check and reset heart-beat timer if necessary */
1271	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
1272	if (!test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag) &&
1273	!(phba->link_state == LPFC_HBA_ERROR) &&
1274	!test_bit(FC_UNLOADING, &phba->pport->load_flag))
1275	mod_timer(timer: &phba->hb_tmofunc,
1276	expires: jiffies +
1277	msecs_to_jiffies(m: 1000 * LPFC_HB_MBOX_INTERVAL));
1278	return;
1279	}
1280
1281	/*
1282	* lpfc_idle_stat_delay_work - idle_stat tracking
1283	*
1284	* This routine tracks per-eq idle_stat and determines polling decisions.
1285	*
1286	* Return codes:
1287	* None
1288	**/
1289	static void
1290	lpfc_idle_stat_delay_work(struct work_struct *work)
1291	{
1292	struct lpfc_hba *phba = container_of(to_delayed_work(work),
1293	struct lpfc_hba,
1294	idle_stat_delay_work);
1295	struct lpfc_queue *eq;
1296	struct lpfc_sli4_hdw_queue *hdwq;
1297	struct lpfc_idle_stat *idle_stat;
1298	u32 i, idle_percent;
1299	u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1300
1301	if (test_bit(FC_UNLOADING, &phba->pport->load_flag))
1302	return;
1303
1304	if (phba->link_state == LPFC_HBA_ERROR ||
1305	test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag) ||
1306	phba->cmf_active_mode != LPFC_CFG_OFF)
1307	goto requeue;
1308
1309	for_each_present_cpu(i) {
1310	hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1311	eq = hdwq->hba_eq;
1312
1313	/* Skip if we've already handled this eq's primary CPU */
1314	if (eq->chann != i)
1315	continue;
1316
1317	idle_stat = &phba->sli4_hba.idle_stat[i];
1318
1319	/* get_cpu_idle_time returns values as running counters. Thus,
1320	* to know the amount for this period, the prior counter values
1321	* need to be subtracted from the current counter values.
1322	* From there, the idle time stat can be calculated as a
1323	* percentage of 100 - the sum of the other consumption times.
1324	*/
1325	wall_idle = get_cpu_idle_time(cpu: i, wall: &wall, io_busy: 1);
1326	diff_idle = wall_idle - idle_stat->prev_idle;
1327	diff_wall = wall - idle_stat->prev_wall;
1328
1329	if (diff_wall <= diff_idle)
1330	busy_time = 0;
1331	else
1332	busy_time = diff_wall - diff_idle;
1333
1334	idle_percent = div64_u64(dividend: 100 * busy_time, divisor: diff_wall);
1335	idle_percent = 100 - idle_percent;
1336
1337	if (idle_percent < 15)
1338	eq->poll_mode = LPFC_QUEUE_WORK;
1339	else
1340	eq->poll_mode = LPFC_THREADED_IRQ;
1341
1342	idle_stat->prev_idle = wall_idle;
1343	idle_stat->prev_wall = wall;
1344	}
1345
1346	requeue:
1347	schedule_delayed_work(dwork: &phba->idle_stat_delay_work,
1348	delay: msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1349	}
1350
1351	static void
1352	lpfc_hb_eq_delay_work(struct work_struct *work)
1353	{
1354	struct lpfc_hba *phba = container_of(to_delayed_work(work),
1355	struct lpfc_hba, eq_delay_work);
1356	struct lpfc_eq_intr_info *eqi, *eqi_new;
1357	struct lpfc_queue *eq, *eq_next;
1358	unsigned char *ena_delay = NULL;
1359	uint32_t usdelay;
1360	int i;
1361
1362	if (!phba->cfg_auto_imax ||
1363	test_bit(FC_UNLOADING, &phba->pport->load_flag))
1364	return;
1365
1366	if (phba->link_state == LPFC_HBA_ERROR ||
1367	test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
1368	goto requeue;
1369
1370	ena_delay = kcalloc(n: phba->sli4_hba.num_possible_cpu, size: sizeof(*ena_delay),
1371	GFP_KERNEL);
1372	if (!ena_delay)
1373	goto requeue;
1374
1375	for (i = 0; i < phba->cfg_irq_chann; i++) {
1376	/* Get the EQ corresponding to the IRQ vector */
1377	eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1378	if (!eq)
1379	continue;
1380	if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1381	eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1382	ena_delay[eq->last_cpu] = 1;
1383	}
1384	}
1385
1386	for_each_present_cpu(i) {
1387	eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1388	if (ena_delay[i]) {
1389	usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1390	if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1391	usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1392	} else {
1393	usdelay = 0;
1394	}
1395
1396	eqi->icnt = 0;
1397
1398	list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1399	if (unlikely(eq->last_cpu != i)) {
1400	eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1401	eq->last_cpu);
1402	list_move_tail(list: &eq->cpu_list, head: &eqi_new->list);
1403	continue;
1404	}
1405	if (usdelay != eq->q_mode)
1406	lpfc_modify_hba_eq_delay(phba, startq: eq->hdwq, numq: 1,
1407	usdelay);
1408	}
1409	}
1410
1411	kfree(objp: ena_delay);
1412
1413	requeue:
1414	queue_delayed_work(wq: phba->wq, dwork: &phba->eq_delay_work,
1415	delay: msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1416	}
1417
1418	/**
1419	* lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1420	* @phba: pointer to lpfc hba data structure.
1421	*
1422	* For each heartbeat, this routine does some heuristic methods to adjust
1423	* XRI distribution. The goal is to fully utilize free XRIs.
1424	**/
1425	static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1426	{
1427	u32 i;
1428	u32 hwq_count;
1429
1430	hwq_count = phba->cfg_hdw_queue;
1431	for (i = 0; i < hwq_count; i++) {
1432	/* Adjust XRIs in private pool */
1433	lpfc_adjust_pvt_pool_count(phba, hwqid: i);
1434
1435	/* Adjust high watermark */
1436	lpfc_adjust_high_watermark(phba, hwqid: i);
1437
1438	#ifdef LPFC_MXP_STAT
1439	/* Snapshot pbl, pvt and busy count */
1440	lpfc_snapshot_mxp(phba, i);
1441	#endif
1442	}
1443	}
1444
1445	/**
1446	* lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1447	* @phba: pointer to lpfc hba data structure.
1448	*
1449	* If a HB mbox is not already in progrees, this routine will allocate
1450	* a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1451	* and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1452	**/
1453	int
1454	lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1455	{
1456	LPFC_MBOXQ_t *pmboxq;
1457	int retval;
1458
1459	/* Is a Heartbeat mbox already in progress */
1460	if (phba->hba_flag & HBA_HBEAT_INP)
1461	return 0;
1462
1463	pmboxq = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
1464	if (!pmboxq)
1465	return -ENOMEM;
1466
1467	lpfc_heart_beat(phba, pmboxq);
1468	pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1469	pmboxq->vport = phba->pport;
1470	retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1471
1472	if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1473	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
1474	return -ENXIO;
1475	}
1476	phba->hba_flag |= HBA_HBEAT_INP;
1477
1478	return 0;
1479	}
1480
1481	/**
1482	* lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1483	* @phba: pointer to lpfc hba data structure.
1484	*
1485	* The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1486	* flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1487	* of the value of lpfc_enable_hba_heartbeat.
1488	* If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1489	* try to issue a MBX_HEARTBEAT mbox command.
1490	**/
1491	void
1492	lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1493	{
1494	if (phba->cfg_enable_hba_heartbeat)
1495	return;
1496	phba->hba_flag |= HBA_HBEAT_TMO;
1497	}
1498
1499	/**
1500	* lpfc_hb_timeout_handler - The HBA-timer timeout handler
1501	* @phba: pointer to lpfc hba data structure.
1502	*
1503	* This is the actual HBA-timer timeout handler to be invoked by the worker
1504	* thread whenever the HBA timer fired and HBA-timeout event posted. This
1505	* handler performs any periodic operations needed for the device. If such
1506	* periodic event has already been attended to either in the interrupt handler
1507	* or by processing slow-ring or fast-ring events within the HBA-timer
1508	* timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1509	* the timer for the next timeout period. If lpfc heart-beat mailbox command
1510	* is configured and there is no heart-beat mailbox command outstanding, a
1511	* heart-beat mailbox is issued and timer set properly. Otherwise, if there
1512	* has been a heart-beat mailbox command outstanding, the HBA shall be put
1513	* to offline.
1514	**/
1515	void
1516	lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1517	{
1518	struct lpfc_vport **vports;
1519	struct lpfc_dmabuf *buf_ptr;
1520	int retval = 0;
1521	int i, tmo;
1522	struct lpfc_sli *psli = &phba->sli;
1523	LIST_HEAD(completions);
1524
1525	if (phba->cfg_xri_rebalancing) {
1526	/* Multi-XRI pools handler */
1527	lpfc_hb_mxp_handler(phba);
1528	}
1529
1530	vports = lpfc_create_vport_work_array(phba);
1531	if (vports != NULL)
1532	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1533	lpfc_rcv_seq_check_edtov(vports[i]);
1534	lpfc_fdmi_change_check(vport: vports[i]);
1535	}
1536	lpfc_destroy_vport_work_array(phba, vports);
1537
1538	if (phba->link_state == LPFC_HBA_ERROR ||
1539	test_bit(FC_UNLOADING, &phba->pport->load_flag) ||
1540	test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
1541	return;
1542
1543	if (phba->elsbuf_cnt &&
1544	(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1545	spin_lock_irq(lock: &phba->hbalock);
1546	list_splice_init(list: &phba->elsbuf, head: &completions);
1547	phba->elsbuf_cnt = 0;
1548	phba->elsbuf_prev_cnt = 0;
1549	spin_unlock_irq(lock: &phba->hbalock);
1550
1551	while (!list_empty(head: &completions)) {
1552	list_remove_head(&completions, buf_ptr,
1553	struct lpfc_dmabuf, list);
1554	lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1555	kfree(objp: buf_ptr);
1556	}
1557	}
1558	phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1559
1560	/* If there is no heart beat outstanding, issue a heartbeat command */
1561	if (phba->cfg_enable_hba_heartbeat) {
1562	/* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1563	spin_lock_irq(lock: &phba->pport->work_port_lock);
1564	if (time_after(phba->last_completion_time +
1565	msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1566	jiffies)) {
1567	spin_unlock_irq(lock: &phba->pport->work_port_lock);
1568	if (phba->hba_flag & HBA_HBEAT_INP)
1569	tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1570	else
1571	tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1572	goto out;
1573	}
1574	spin_unlock_irq(lock: &phba->pport->work_port_lock);
1575
1576	/* Check if a MBX_HEARTBEAT is already in progress */
1577	if (phba->hba_flag & HBA_HBEAT_INP) {
1578	/*
1579	* If heart beat timeout called with HBA_HBEAT_INP set
1580	* we need to give the hb mailbox cmd a chance to
1581	* complete or TMO.
1582	*/
1583	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1584	"0459 Adapter heartbeat still outstanding: "
1585	"last compl time was %d ms.\n",
1586	jiffies_to_msecs(jiffies
1587	- phba->last_completion_time));
1588	tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1589	} else {
1590	if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1591	(list_empty(head: &psli->mboxq))) {
1592
1593	retval = lpfc_issue_hb_mbox(phba);
1594	if (retval) {
1595	tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1596	goto out;
1597	}
1598	phba->skipped_hb = 0;
1599	} else if (time_before_eq(phba->last_completion_time,
1600	phba->skipped_hb)) {
1601	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1602	"2857 Last completion time not "
1603	" updated in %d ms\n",
1604	jiffies_to_msecs(jiffies
1605	- phba->last_completion_time));
1606	} else
1607	phba->skipped_hb = jiffies;
1608
1609	tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1610	goto out;
1611	}
1612	} else {
1613	/* Check to see if we want to force a MBX_HEARTBEAT */
1614	if (phba->hba_flag & HBA_HBEAT_TMO) {
1615	retval = lpfc_issue_hb_mbox(phba);
1616	if (retval)
1617	tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1618	else
1619	tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1620	goto out;
1621	}
1622	tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1623	}
1624	out:
1625	mod_timer(timer: &phba->hb_tmofunc, expires: jiffies + msecs_to_jiffies(m: tmo));
1626	}
1627
1628	/**
1629	* lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1630	* @phba: pointer to lpfc hba data structure.
1631	*
1632	* This routine is called to bring the HBA offline when HBA hardware error
1633	* other than Port Error 6 has been detected.
1634	**/
1635	static void
1636	lpfc_offline_eratt(struct lpfc_hba *phba)
1637	{
1638	struct lpfc_sli *psli = &phba->sli;
1639
1640	spin_lock_irq(lock: &phba->hbalock);
1641	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1642	spin_unlock_irq(lock: &phba->hbalock);
1643	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1644
1645	lpfc_offline(phba);
1646	lpfc_reset_barrier(phba);
1647	spin_lock_irq(lock: &phba->hbalock);
1648	lpfc_sli_brdreset(phba);
1649	spin_unlock_irq(lock: &phba->hbalock);
1650	lpfc_hba_down_post(phba);
1651	lpfc_sli_brdready(phba, HS_MBRDY);
1652	lpfc_unblock_mgmt_io(phba);
1653	phba->link_state = LPFC_HBA_ERROR;
1654	return;
1655	}
1656
1657	/**
1658	* lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1659	* @phba: pointer to lpfc hba data structure.
1660	*
1661	* This routine is called to bring a SLI4 HBA offline when HBA hardware error
1662	* other than Port Error 6 has been detected.
1663	**/
1664	void
1665	lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1666	{
1667	spin_lock_irq(lock: &phba->hbalock);
1668	if (phba->link_state == LPFC_HBA_ERROR &&
1669	test_bit(HBA_PCI_ERR, &phba->bit_flags)) {
1670	spin_unlock_irq(lock: &phba->hbalock);
1671	return;
1672	}
1673	phba->link_state = LPFC_HBA_ERROR;
1674	spin_unlock_irq(lock: &phba->hbalock);
1675
1676	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1677	lpfc_sli_flush_io_rings(phba);
1678	lpfc_offline(phba);
1679	lpfc_hba_down_post(phba);
1680	lpfc_unblock_mgmt_io(phba);
1681	}
1682
1683	/**
1684	* lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1685	* @phba: pointer to lpfc hba data structure.
1686	*
1687	* This routine is invoked to handle the deferred HBA hardware error
1688	* conditions. This type of error is indicated by HBA by setting ER1
1689	* and another ER bit in the host status register. The driver will
1690	* wait until the ER1 bit clears before handling the error condition.
1691	**/
1692	static void
1693	lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1694	{
1695	uint32_t old_host_status = phba->work_hs;
1696	struct lpfc_sli *psli = &phba->sli;
1697
1698	/* If the pci channel is offline, ignore possible errors,
1699	* since we cannot communicate with the pci card anyway.
1700	*/
1701	if (pci_channel_offline(pdev: phba->pcidev)) {
1702	spin_lock_irq(lock: &phba->hbalock);
1703	phba->hba_flag &= ~DEFER_ERATT;
1704	spin_unlock_irq(lock: &phba->hbalock);
1705	return;
1706	}
1707
1708	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1709	"0479 Deferred Adapter Hardware Error "
1710	"Data: x%x x%x x%x\n",
1711	phba->work_hs, phba->work_status[0],
1712	phba->work_status[1]);
1713
1714	spin_lock_irq(lock: &phba->hbalock);
1715	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1716	spin_unlock_irq(lock: &phba->hbalock);
1717
1718
1719	/*
1720	* Firmware stops when it triggred erratt. That could cause the I/Os
1721	* dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1722	* SCSI layer retry it after re-establishing link.
1723	*/
1724	lpfc_sli_abort_fcp_rings(phba);
1725
1726	/*
1727	* There was a firmware error. Take the hba offline and then
1728	* attempt to restart it.
1729	*/
1730	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1731	lpfc_offline(phba);
1732
1733	/* Wait for the ER1 bit to clear.*/
1734	while (phba->work_hs & HS_FFER1) {
1735	msleep(msecs: 100);
1736	if (lpfc_readl(addr: phba->HSregaddr, data: &phba->work_hs)) {
1737	phba->work_hs = UNPLUG_ERR ;
1738	break;
1739	}
1740	/* If driver is unloading let the worker thread continue */
1741	if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) {
1742	phba->work_hs = 0;
1743	break;
1744	}
1745	}
1746
1747	/*
1748	* This is to ptrotect against a race condition in which
1749	* first write to the host attention register clear the
1750	* host status register.
1751	*/
1752	if (!phba->work_hs && !test_bit(FC_UNLOADING, &phba->pport->load_flag))
1753	phba->work_hs = old_host_status & ~HS_FFER1;
1754
1755	spin_lock_irq(lock: &phba->hbalock);
1756	phba->hba_flag &= ~DEFER_ERATT;
1757	spin_unlock_irq(lock: &phba->hbalock);
1758	phba->work_status[0] = readl(addr: phba->MBslimaddr + 0xa8);
1759	phba->work_status[1] = readl(addr: phba->MBslimaddr + 0xac);
1760	}
1761
1762	static void
1763	lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1764	{
1765	struct lpfc_board_event_header board_event;
1766	struct Scsi_Host *shost;
1767
1768	board_event.event_type = FC_REG_BOARD_EVENT;
1769	board_event.subcategory = LPFC_EVENT_PORTINTERR;
1770	shost = lpfc_shost_from_vport(vport: phba->pport);
1771	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
1772	data_len: sizeof(board_event),
1773	data_buf: (char *) &board_event,
1774	LPFC_NL_VENDOR_ID);
1775	}
1776
1777	/**
1778	* lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1779	* @phba: pointer to lpfc hba data structure.
1780	*
1781	* This routine is invoked to handle the following HBA hardware error
1782	* conditions:
1783	* 1 - HBA error attention interrupt
1784	* 2 - DMA ring index out of range
1785	* 3 - Mailbox command came back as unknown
1786	**/
1787	static void
1788	lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1789	{
1790	struct lpfc_vport *vport = phba->pport;
1791	struct lpfc_sli *psli = &phba->sli;
1792	uint32_t event_data;
1793	unsigned long temperature;
1794	struct temp_event temp_event_data;
1795	struct Scsi_Host *shost;
1796
1797	/* If the pci channel is offline, ignore possible errors,
1798	* since we cannot communicate with the pci card anyway.
1799	*/
1800	if (pci_channel_offline(pdev: phba->pcidev)) {
1801	spin_lock_irq(lock: &phba->hbalock);
1802	phba->hba_flag &= ~DEFER_ERATT;
1803	spin_unlock_irq(lock: &phba->hbalock);
1804	return;
1805	}
1806
1807	/* If resets are disabled then leave the HBA alone and return */
1808	if (!phba->cfg_enable_hba_reset)
1809	return;
1810
1811	/* Send an internal error event to mgmt application */
1812	lpfc_board_errevt_to_mgmt(phba);
1813
1814	if (phba->hba_flag & DEFER_ERATT)
1815	lpfc_handle_deferred_eratt(phba);
1816
1817	if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1818	if (phba->work_hs & HS_FFER6)
1819	/* Re-establishing Link */
1820	lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1821	"1301 Re-establishing Link "
1822	"Data: x%x x%x x%x\n",
1823	phba->work_hs, phba->work_status[0],
1824	phba->work_status[1]);
1825	if (phba->work_hs & HS_FFER8)
1826	/* Device Zeroization */
1827	lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1828	"2861 Host Authentication device "
1829	"zeroization Data:x%x x%x x%x\n",
1830	phba->work_hs, phba->work_status[0],
1831	phba->work_status[1]);
1832
1833	spin_lock_irq(lock: &phba->hbalock);
1834	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1835	spin_unlock_irq(lock: &phba->hbalock);
1836
1837	/*
1838	* Firmware stops when it triggled erratt with HS_FFER6.
1839	* That could cause the I/Os dropped by the firmware.
1840	* Error iocb (I/O) on txcmplq and let the SCSI layer
1841	* retry it after re-establishing link.
1842	*/
1843	lpfc_sli_abort_fcp_rings(phba);
1844
1845	/*
1846	* There was a firmware error. Take the hba offline and then
1847	* attempt to restart it.
1848	*/
1849	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1850	lpfc_offline(phba);
1851	lpfc_sli_brdrestart(phba);
1852	if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1853	lpfc_unblock_mgmt_io(phba);
1854	return;
1855	}
1856	lpfc_unblock_mgmt_io(phba);
1857	} else if (phba->work_hs & HS_CRIT_TEMP) {
1858	temperature = readl(addr: phba->MBslimaddr + TEMPERATURE_OFFSET);
1859	temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1860	temp_event_data.event_code = LPFC_CRIT_TEMP;
1861	temp_event_data.data = (uint32_t)temperature;
1862
1863	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1864	"0406 Adapter maximum temperature exceeded "
1865	"(%ld), taking this port offline "
1866	"Data: x%x x%x x%x\n",
1867	temperature, phba->work_hs,
1868	phba->work_status[0], phba->work_status[1]);
1869
1870	shost = lpfc_shost_from_vport(vport: phba->pport);
1871	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
1872	data_len: sizeof(temp_event_data),
1873	data_buf: (char *) &temp_event_data,
1874	SCSI_NL_VID_TYPE_PCI
1875	| PCI_VENDOR_ID_EMULEX);
1876
1877	spin_lock_irq(lock: &phba->hbalock);
1878	phba->over_temp_state = HBA_OVER_TEMP;
1879	spin_unlock_irq(lock: &phba->hbalock);
1880	lpfc_offline_eratt(phba);
1881
1882	} else {
1883	/* The if clause above forces this code path when the status
1884	* failure is a value other than FFER6. Do not call the offline
1885	* twice. This is the adapter hardware error path.
1886	*/
1887	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1888	"0457 Adapter Hardware Error "
1889	"Data: x%x x%x x%x\n",
1890	phba->work_hs,
1891	phba->work_status[0], phba->work_status[1]);
1892
1893	event_data = FC_REG_DUMP_EVENT;
1894	shost = lpfc_shost_from_vport(vport);
1895	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
1896	data_len: sizeof(event_data), data_buf: (char *) &event_data,
1897	SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1898
1899	lpfc_offline_eratt(phba);
1900	}
1901	return;
1902	}
1903
1904	/**
1905	* lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1906	* @phba: pointer to lpfc hba data structure.
1907	* @mbx_action: flag for mailbox shutdown action.
1908	* @en_rn_msg: send reset/port recovery message.
1909	* This routine is invoked to perform an SLI4 port PCI function reset in
1910	* response to port status register polling attention. It waits for port
1911	* status register (ERR, RDY, RN) bits before proceeding with function reset.
1912	* During this process, interrupt vectors are freed and later requested
1913	* for handling possible port resource change.
1914	**/
1915	static int
1916	lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1917	bool en_rn_msg)
1918	{
1919	int rc;
1920	uint32_t intr_mode;
1921	LPFC_MBOXQ_t *mboxq;
1922
1923	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1924	LPFC_SLI_INTF_IF_TYPE_2) {
1925	/*
1926	* On error status condition, driver need to wait for port
1927	* ready before performing reset.
1928	*/
1929	rc = lpfc_sli4_pdev_status_reg_wait(phba);
1930	if (rc)
1931	return rc;
1932	}
1933
1934	/* need reset: attempt for port recovery */
1935	if (en_rn_msg)
1936	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1937	"2887 Reset Needed: Attempting Port "
1938	"Recovery...\n");
1939
1940	/* If we are no wait, the HBA has been reset and is not
1941	* functional, thus we should clear
1942	* (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1943	*/
1944	if (mbx_action == LPFC_MBX_NO_WAIT) {
1945	spin_lock_irq(lock: &phba->hbalock);
1946	phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1947	if (phba->sli.mbox_active) {
1948	mboxq = phba->sli.mbox_active;
1949	mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1950	__lpfc_mbox_cmpl_put(phba, mboxq);
1951	phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1952	phba->sli.mbox_active = NULL;
1953	}
1954	spin_unlock_irq(lock: &phba->hbalock);
1955	}
1956
1957	lpfc_offline_prep(phba, mbx_action);
1958	lpfc_sli_flush_io_rings(phba);
1959	lpfc_offline(phba);
1960	/* release interrupt for possible resource change */
1961	lpfc_sli4_disable_intr(phba);
1962	rc = lpfc_sli_brdrestart(phba);
1963	if (rc) {
1964	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1965	"6309 Failed to restart board\n");
1966	return rc;
1967	}
1968	/* request and enable interrupt */
1969	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1970	if (intr_mode == LPFC_INTR_ERROR) {
1971	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1972	"3175 Failed to enable interrupt\n");
1973	return -EIO;
1974	}
1975	phba->intr_mode = intr_mode;
1976	rc = lpfc_online(phba);
1977	if (rc == 0)
1978	lpfc_unblock_mgmt_io(phba);
1979
1980	return rc;
1981	}
1982
1983	/**
1984	* lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1985	* @phba: pointer to lpfc hba data structure.
1986	*
1987	* This routine is invoked to handle the SLI4 HBA hardware error attention
1988	* conditions.
1989	**/
1990	static void
1991	lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1992	{
1993	struct lpfc_vport *vport = phba->pport;
1994	uint32_t event_data;
1995	struct Scsi_Host *shost;
1996	uint32_t if_type;
1997	struct lpfc_register portstat_reg = {0};
1998	uint32_t reg_err1, reg_err2;
1999	uint32_t uerrlo_reg, uemasklo_reg;
2000	uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
2001	bool en_rn_msg = true;
2002	struct temp_event temp_event_data;
2003	struct lpfc_register portsmphr_reg;
2004	int rc, i;
2005
2006	/* If the pci channel is offline, ignore possible errors, since
2007	* we cannot communicate with the pci card anyway.
2008	*/
2009	if (pci_channel_offline(pdev: phba->pcidev)) {
2010	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2011	"3166 pci channel is offline\n");
2012	lpfc_sli_flush_io_rings(phba);
2013	return;
2014	}
2015
2016	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
2017	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2018	switch (if_type) {
2019	case LPFC_SLI_INTF_IF_TYPE_0:
2020	pci_rd_rc1 = lpfc_readl(
2021	addr: phba->sli4_hba.u.if_type0.UERRLOregaddr,
2022	data: &uerrlo_reg);
2023	pci_rd_rc2 = lpfc_readl(
2024	addr: phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
2025	data: &uemasklo_reg);
2026	/* consider PCI bus read error as pci_channel_offline */
2027	if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
2028	return;
2029	if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
2030	lpfc_sli4_offline_eratt(phba);
2031	return;
2032	}
2033	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2034	"7623 Checking UE recoverable");
2035
2036	for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
2037	if (lpfc_readl(addr: phba->sli4_hba.PSMPHRregaddr,
2038	data: &portsmphr_reg.word0))
2039	continue;
2040
2041	smphr_port_status = bf_get(lpfc_port_smphr_port_status,
2042	&portsmphr_reg);
2043	if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2044	LPFC_PORT_SEM_UE_RECOVERABLE)
2045	break;
2046	/*Sleep for 1Sec, before checking SEMAPHORE */
2047	msleep(msecs: 1000);
2048	}
2049
2050	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2051	"4827 smphr_port_status x%x : Waited %dSec",
2052	smphr_port_status, i);
2053
2054	/* Recoverable UE, reset the HBA device */
2055	if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2056	LPFC_PORT_SEM_UE_RECOVERABLE) {
2057	for (i = 0; i < 20; i++) {
2058	msleep(msecs: 1000);
2059	if (!lpfc_readl(addr: phba->sli4_hba.PSMPHRregaddr,
2060	data: &portsmphr_reg.word0) &&
2061	(LPFC_POST_STAGE_PORT_READY ==
2062	bf_get(lpfc_port_smphr_port_status,
2063	&portsmphr_reg))) {
2064	rc = lpfc_sli4_port_sta_fn_reset(phba,
2065	LPFC_MBX_NO_WAIT, en_rn_msg);
2066	if (rc == 0)
2067	return;
2068	lpfc_printf_log(phba, KERN_ERR,
2069	LOG_TRACE_EVENT,
2070	"4215 Failed to recover UE");
2071	break;
2072	}
2073	}
2074	}
2075	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2076	"7624 Firmware not ready: Failing UE recovery,"
2077	" waited %dSec", i);
2078	phba->link_state = LPFC_HBA_ERROR;
2079	break;
2080
2081	case LPFC_SLI_INTF_IF_TYPE_2:
2082	case LPFC_SLI_INTF_IF_TYPE_6:
2083	pci_rd_rc1 = lpfc_readl(
2084	addr: phba->sli4_hba.u.if_type2.STATUSregaddr,
2085	data: &portstat_reg.word0);
2086	/* consider PCI bus read error as pci_channel_offline */
2087	if (pci_rd_rc1 == -EIO) {
2088	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2089	"3151 PCI bus read access failure: x%x\n",
2090	readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2091	lpfc_sli4_offline_eratt(phba);
2092	return;
2093	}
2094	reg_err1 = readl(addr: phba->sli4_hba.u.if_type2.ERR1regaddr);
2095	reg_err2 = readl(addr: phba->sli4_hba.u.if_type2.ERR2regaddr);
2096	if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2097	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2098	"2889 Port Overtemperature event, "
2099	"taking port offline Data: x%x x%x\n",
2100	reg_err1, reg_err2);
2101
2102	phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2103	temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2104	temp_event_data.event_code = LPFC_CRIT_TEMP;
2105	temp_event_data.data = 0xFFFFFFFF;
2106
2107	shost = lpfc_shost_from_vport(vport: phba->pport);
2108	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
2109	data_len: sizeof(temp_event_data),
2110	data_buf: (char *)&temp_event_data,
2111	SCSI_NL_VID_TYPE_PCI
2112	| PCI_VENDOR_ID_EMULEX);
2113
2114	spin_lock_irq(lock: &phba->hbalock);
2115	phba->over_temp_state = HBA_OVER_TEMP;
2116	spin_unlock_irq(lock: &phba->hbalock);
2117	lpfc_sli4_offline_eratt(phba);
2118	return;
2119	}
2120	if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2121	reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2122	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2123	"3143 Port Down: Firmware Update "
2124	"Detected\n");
2125	en_rn_msg = false;
2126	} else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2127	reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2128	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2129	"3144 Port Down: Debug Dump\n");
2130	else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2131	reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2132	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2133	"3145 Port Down: Provisioning\n");
2134
2135	/* If resets are disabled then leave the HBA alone and return */
2136	if (!phba->cfg_enable_hba_reset)
2137	return;
2138
2139	/* Check port status register for function reset */
2140	rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2141	en_rn_msg);
2142	if (rc == 0) {
2143	/* don't report event on forced debug dump */
2144	if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2145	reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2146	return;
2147	else
2148	break;
2149	}
2150	/* fall through for not able to recover */
2151	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2152	"3152 Unrecoverable error\n");
2153	lpfc_sli4_offline_eratt(phba);
2154	break;
2155	case LPFC_SLI_INTF_IF_TYPE_1:
2156	default:
2157	break;
2158	}
2159	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2160	"3123 Report dump event to upper layer\n");
2161	/* Send an internal error event to mgmt application */
2162	lpfc_board_errevt_to_mgmt(phba);
2163
2164	event_data = FC_REG_DUMP_EVENT;
2165	shost = lpfc_shost_from_vport(vport);
2166	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
2167	data_len: sizeof(event_data), data_buf: (char *) &event_data,
2168	SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2169	}
2170
2171	/**
2172	* lpfc_handle_eratt - Wrapper func for handling hba error attention
2173	* @phba: pointer to lpfc HBA data structure.
2174	*
2175	* This routine wraps the actual SLI3 or SLI4 hba error attention handling
2176	* routine from the API jump table function pointer from the lpfc_hba struct.
2177	*
2178	* Return codes
2179	* 0 - success.
2180	* Any other value - error.
2181	**/
2182	void
2183	lpfc_handle_eratt(struct lpfc_hba *phba)
2184	{
2185	(*phba->lpfc_handle_eratt)(phba);
2186	}
2187
2188	/**
2189	* lpfc_handle_latt - The HBA link event handler
2190	* @phba: pointer to lpfc hba data structure.
2191	*
2192	* This routine is invoked from the worker thread to handle a HBA host
2193	* attention link event. SLI3 only.
2194	**/
2195	void
2196	lpfc_handle_latt(struct lpfc_hba *phba)
2197	{
2198	struct lpfc_vport *vport = phba->pport;
2199	struct lpfc_sli *psli = &phba->sli;
2200	LPFC_MBOXQ_t *pmb;
2201	volatile uint32_t control;
2202	int rc = 0;
2203
2204	pmb = (LPFC_MBOXQ_t *)mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
2205	if (!pmb) {
2206	rc = 1;
2207	goto lpfc_handle_latt_err_exit;
2208	}
2209
2210	rc = lpfc_mbox_rsrc_prep(phba, mbox: pmb);
2211	if (rc) {
2212	rc = 2;
2213	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
2214	goto lpfc_handle_latt_err_exit;
2215	}
2216
2217	/* Cleanup any outstanding ELS commands */
2218	lpfc_els_flush_all_cmd(phba);
2219	psli->slistat.link_event++;
2220	lpfc_read_topology(phba, pmb, pmb->ctx_buf);
2221	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2222	pmb->vport = vport;
2223	/* Block ELS IOCBs until we have processed this mbox command */
2224	phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2225	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2226	if (rc == MBX_NOT_FINISHED) {
2227	rc = 4;
2228	goto lpfc_handle_latt_free_mbuf;
2229	}
2230
2231	/* Clear Link Attention in HA REG */
2232	spin_lock_irq(lock: &phba->hbalock);
2233	writel(HA_LATT, addr: phba->HAregaddr);
2234	readl(addr: phba->HAregaddr); /* flush */
2235	spin_unlock_irq(lock: &phba->hbalock);
2236
2237	return;
2238
2239	lpfc_handle_latt_free_mbuf:
2240	phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2241	lpfc_mbox_rsrc_cleanup(phba, mbox: pmb, locked: MBOX_THD_UNLOCKED);
2242	lpfc_handle_latt_err_exit:
2243	/* Enable Link attention interrupts */
2244	spin_lock_irq(lock: &phba->hbalock);
2245	psli->sli_flag |= LPFC_PROCESS_LA;
2246	control = readl(addr: phba->HCregaddr);
2247	control |= HC_LAINT_ENA;
2248	writel(val: control, addr: phba->HCregaddr);
2249	readl(addr: phba->HCregaddr); /* flush */
2250
2251	/* Clear Link Attention in HA REG */
2252	writel(HA_LATT, addr: phba->HAregaddr);
2253	readl(addr: phba->HAregaddr); /* flush */
2254	spin_unlock_irq(lock: &phba->hbalock);
2255	lpfc_linkdown(phba);
2256	phba->link_state = LPFC_HBA_ERROR;
2257
2258	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2259	"0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2260
2261	return;
2262	}
2263
2264	static void
2265	lpfc_fill_vpd(struct lpfc_hba *phba, uint8_t *vpd, int length, int *pindex)
2266	{
2267	int i, j;
2268
2269	while (length > 0) {
2270	/* Look for Serial Number */
2271	if ((vpd[*pindex] == 'S') && (vpd[*pindex + 1] == 'N')) {
2272	*pindex += 2;
2273	i = vpd[*pindex];
2274	*pindex += 1;
2275	j = 0;
2276	length -= (3+i);
2277	while (i--) {
2278	phba->SerialNumber[j++] = vpd[(*pindex)++];
2279	if (j == 31)
2280	break;
2281	}
2282	phba->SerialNumber[j] = 0;
2283	continue;
2284	} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '1')) {
2285	phba->vpd_flag |= VPD_MODEL_DESC;
2286	*pindex += 2;
2287	i = vpd[*pindex];
2288	*pindex += 1;
2289	j = 0;
2290	length -= (3+i);
2291	while (i--) {
2292	phba->ModelDesc[j++] = vpd[(*pindex)++];
2293	if (j == 255)
2294	break;
2295	}
2296	phba->ModelDesc[j] = 0;
2297	continue;
2298	} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '2')) {
2299	phba->vpd_flag |= VPD_MODEL_NAME;
2300	*pindex += 2;
2301	i = vpd[*pindex];
2302	*pindex += 1;
2303	j = 0;
2304	length -= (3+i);
2305	while (i--) {
2306	phba->ModelName[j++] = vpd[(*pindex)++];
2307	if (j == 79)
2308	break;
2309	}
2310	phba->ModelName[j] = 0;
2311	continue;
2312	} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '3')) {
2313	phba->vpd_flag |= VPD_PROGRAM_TYPE;
2314	*pindex += 2;
2315	i = vpd[*pindex];
2316	*pindex += 1;
2317	j = 0;
2318	length -= (3+i);
2319	while (i--) {
2320	phba->ProgramType[j++] = vpd[(*pindex)++];
2321	if (j == 255)
2322	break;
2323	}
2324	phba->ProgramType[j] = 0;
2325	continue;
2326	} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '4')) {
2327	phba->vpd_flag |= VPD_PORT;
2328	*pindex += 2;
2329	i = vpd[*pindex];
2330	*pindex += 1;
2331	j = 0;
2332	length -= (3 + i);
2333	while (i--) {
2334	if ((phba->sli_rev == LPFC_SLI_REV4) &&
2335	(phba->sli4_hba.pport_name_sta ==
2336	LPFC_SLI4_PPNAME_GET)) {
2337	j++;
2338	(*pindex)++;
2339	} else
2340	phba->Port[j++] = vpd[(*pindex)++];
2341	if (j == 19)
2342	break;
2343	}
2344	if ((phba->sli_rev != LPFC_SLI_REV4) ||
2345	(phba->sli4_hba.pport_name_sta ==
2346	LPFC_SLI4_PPNAME_NON))
2347	phba->Port[j] = 0;
2348	continue;
2349	} else {
2350	*pindex += 2;
2351	i = vpd[*pindex];
2352	*pindex += 1;
2353	*pindex += i;
2354	length -= (3 + i);
2355	}
2356	}
2357	}
2358
2359	/**
2360	* lpfc_parse_vpd - Parse VPD (Vital Product Data)
2361	* @phba: pointer to lpfc hba data structure.
2362	* @vpd: pointer to the vital product data.
2363	* @len: length of the vital product data in bytes.
2364	*
2365	* This routine parses the Vital Product Data (VPD). The VPD is treated as
2366	* an array of characters. In this routine, the ModelName, ProgramType, and
2367	* ModelDesc, etc. fields of the phba data structure will be populated.
2368	*
2369	* Return codes
2370	* 0 - pointer to the VPD passed in is NULL
2371	* 1 - success
2372	**/
2373	int
2374	lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2375	{
2376	uint8_t lenlo, lenhi;
2377	int Length;
2378	int i;
2379	int finished = 0;
2380	int index = 0;
2381
2382	if (!vpd)
2383	return 0;
2384
2385	/* Vital Product */
2386	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2387	"0455 Vital Product Data: x%x x%x x%x x%x\n",
2388	(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2389	(uint32_t) vpd[3]);
2390	while (!finished && (index < (len - 4))) {
2391	switch (vpd[index]) {
2392	case 0x82:
2393	case 0x91:
2394	index += 1;
2395	lenlo = vpd[index];
2396	index += 1;
2397	lenhi = vpd[index];
2398	index += 1;
2399	i = ((((unsigned short)lenhi) << 8) + lenlo);
2400	index += i;
2401	break;
2402	case 0x90:
2403	index += 1;
2404	lenlo = vpd[index];
2405	index += 1;
2406	lenhi = vpd[index];
2407	index += 1;
2408	Length = ((((unsigned short)lenhi) << 8) + lenlo);
2409	if (Length > len - index)
2410	Length = len - index;
2411
2412	lpfc_fill_vpd(phba, vpd, length: Length, pindex: &index);
2413	finished = 0;
2414	break;
2415	case 0x78:
2416	finished = 1;
2417	break;
2418	default:
2419	index ++;
2420	break;
2421	}
2422	}
2423
2424	return(1);
2425	}
2426
2427	/**
2428	* lpfc_get_atto_model_desc - Retrieve ATTO HBA device model name and description
2429	* @phba: pointer to lpfc hba data structure.
2430	* @mdp: pointer to the data structure to hold the derived model name.
2431	* @descp: pointer to the data structure to hold the derived description.
2432	*
2433	* This routine retrieves HBA's description based on its registered PCI device
2434	* ID. The @descp passed into this function points to an array of 256 chars. It
2435	* shall be returned with the model name, maximum speed, and the host bus type.
2436	* The @mdp passed into this function points to an array of 80 chars. When the
2437	* function returns, the @mdp will be filled with the model name.
2438	**/
2439	static void
2440	lpfc_get_atto_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2441	{
2442	uint16_t sub_dev_id = phba->pcidev->subsystem_device;
2443	char *model = "<Unknown>";
2444	int tbolt = 0;
2445
2446	switch (sub_dev_id) {
2447	case PCI_DEVICE_ID_CLRY_161E:
2448	model = "161E";
2449	break;
2450	case PCI_DEVICE_ID_CLRY_162E:
2451	model = "162E";
2452	break;
2453	case PCI_DEVICE_ID_CLRY_164E:
2454	model = "164E";
2455	break;
2456	case PCI_DEVICE_ID_CLRY_161P:
2457	model = "161P";
2458	break;
2459	case PCI_DEVICE_ID_CLRY_162P:
2460	model = "162P";
2461	break;
2462	case PCI_DEVICE_ID_CLRY_164P:
2463	model = "164P";
2464	break;
2465	case PCI_DEVICE_ID_CLRY_321E:
2466	model = "321E";
2467	break;
2468	case PCI_DEVICE_ID_CLRY_322E:
2469	model = "322E";
2470	break;
2471	case PCI_DEVICE_ID_CLRY_324E:
2472	model = "324E";
2473	break;
2474	case PCI_DEVICE_ID_CLRY_321P:
2475	model = "321P";
2476	break;
2477	case PCI_DEVICE_ID_CLRY_322P:
2478	model = "322P";
2479	break;
2480	case PCI_DEVICE_ID_CLRY_324P:
2481	model = "324P";
2482	break;
2483	case PCI_DEVICE_ID_TLFC_2XX2:
2484	model = "2XX2";
2485	tbolt = 1;
2486	break;
2487	case PCI_DEVICE_ID_TLFC_3162:
2488	model = "3162";
2489	tbolt = 1;
2490	break;
2491	case PCI_DEVICE_ID_TLFC_3322:
2492	model = "3322";
2493	tbolt = 1;
2494	break;
2495	default:
2496	model = "Unknown";
2497	break;
2498	}
2499
2500	if (mdp && mdp[0] == '\0')
2501	snprintf(buf: mdp, size: 79, fmt: "%s", model);
2502
2503	if (descp && descp[0] == '\0')
2504	snprintf(buf: descp, size: 255,
2505	fmt: "ATTO %s%s, Fibre Channel Adapter Initiator, Port %s",
2506	(tbolt) ? "ThunderLink FC " : "Celerity FC-",
2507	model,
2508	phba->Port);
2509	}
2510
2511	/**
2512	* lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2513	* @phba: pointer to lpfc hba data structure.
2514	* @mdp: pointer to the data structure to hold the derived model name.
2515	* @descp: pointer to the data structure to hold the derived description.
2516	*
2517	* This routine retrieves HBA's description based on its registered PCI device
2518	* ID. The @descp passed into this function points to an array of 256 chars. It
2519	* shall be returned with the model name, maximum speed, and the host bus type.
2520	* The @mdp passed into this function points to an array of 80 chars. When the
2521	* function returns, the @mdp will be filled with the model name.
2522	**/
2523	static void
2524	lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2525	{
2526	lpfc_vpd_t *vp;
2527	uint16_t dev_id = phba->pcidev->device;
2528	int max_speed;
2529	int GE = 0;
2530	int oneConnect = 0; /* default is not a oneConnect */
2531	struct {
2532	char *name;
2533	char *bus;
2534	char *function;
2535	} m = {"<Unknown>", "", ""};
2536
2537	if (mdp && mdp[0] != '\0'
2538	&& descp && descp[0] != '\0')
2539	return;
2540
2541	if (phba->pcidev->vendor == PCI_VENDOR_ID_ATTO) {
2542	lpfc_get_atto_model_desc(phba, mdp, descp);
2543	return;
2544	}
2545
2546	if (phba->lmt & LMT_64Gb)
2547	max_speed = 64;
2548	else if (phba->lmt & LMT_32Gb)
2549	max_speed = 32;
2550	else if (phba->lmt & LMT_16Gb)
2551	max_speed = 16;
2552	else if (phba->lmt & LMT_10Gb)
2553	max_speed = 10;
2554	else if (phba->lmt & LMT_8Gb)
2555	max_speed = 8;
2556	else if (phba->lmt & LMT_4Gb)
2557	max_speed = 4;
2558	else if (phba->lmt & LMT_2Gb)
2559	max_speed = 2;
2560	else if (phba->lmt & LMT_1Gb)
2561	max_speed = 1;
2562	else
2563	max_speed = 0;
2564
2565	vp = &phba->vpd;
2566
2567	switch (dev_id) {
2568	case PCI_DEVICE_ID_FIREFLY:
2569	m = (typeof(m)){"LP6000", "PCI",
2570	"Obsolete, Unsupported Fibre Channel Adapter"};
2571	break;
2572	case PCI_DEVICE_ID_SUPERFLY:
2573	if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2574	m = (typeof(m)){"LP7000", "PCI", ""};
2575	else
2576	m = (typeof(m)){"LP7000E", "PCI", ""};
2577	m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2578	break;
2579	case PCI_DEVICE_ID_DRAGONFLY:
2580	m = (typeof(m)){"LP8000", "PCI",
2581	"Obsolete, Unsupported Fibre Channel Adapter"};
2582	break;
2583	case PCI_DEVICE_ID_CENTAUR:
2584	if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2585	m = (typeof(m)){"LP9002", "PCI", ""};
2586	else
2587	m = (typeof(m)){"LP9000", "PCI", ""};
2588	m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2589	break;
2590	case PCI_DEVICE_ID_RFLY:
2591	m = (typeof(m)){"LP952", "PCI",
2592	"Obsolete, Unsupported Fibre Channel Adapter"};
2593	break;
2594	case PCI_DEVICE_ID_PEGASUS:
2595	m = (typeof(m)){"LP9802", "PCI-X",
2596	"Obsolete, Unsupported Fibre Channel Adapter"};
2597	break;
2598	case PCI_DEVICE_ID_THOR:
2599	m = (typeof(m)){"LP10000", "PCI-X",
2600	"Obsolete, Unsupported Fibre Channel Adapter"};
2601	break;
2602	case PCI_DEVICE_ID_VIPER:
2603	m = (typeof(m)){"LPX1000", "PCI-X",
2604	"Obsolete, Unsupported Fibre Channel Adapter"};
2605	break;
2606	case PCI_DEVICE_ID_PFLY:
2607	m = (typeof(m)){"LP982", "PCI-X",
2608	"Obsolete, Unsupported Fibre Channel Adapter"};
2609	break;
2610	case PCI_DEVICE_ID_TFLY:
2611	m = (typeof(m)){"LP1050", "PCI-X",
2612	"Obsolete, Unsupported Fibre Channel Adapter"};
2613	break;
2614	case PCI_DEVICE_ID_HELIOS:
2615	m = (typeof(m)){"LP11000", "PCI-X2",
2616	"Obsolete, Unsupported Fibre Channel Adapter"};
2617	break;
2618	case PCI_DEVICE_ID_HELIOS_SCSP:
2619	m = (typeof(m)){"LP11000-SP", "PCI-X2",
2620	"Obsolete, Unsupported Fibre Channel Adapter"};
2621	break;
2622	case PCI_DEVICE_ID_HELIOS_DCSP:
2623	m = (typeof(m)){"LP11002-SP", "PCI-X2",
2624	"Obsolete, Unsupported Fibre Channel Adapter"};
2625	break;
2626	case PCI_DEVICE_ID_NEPTUNE:
2627	m = (typeof(m)){"LPe1000", "PCIe",
2628	"Obsolete, Unsupported Fibre Channel Adapter"};
2629	break;
2630	case PCI_DEVICE_ID_NEPTUNE_SCSP:
2631	m = (typeof(m)){"LPe1000-SP", "PCIe",
2632	"Obsolete, Unsupported Fibre Channel Adapter"};
2633	break;
2634	case PCI_DEVICE_ID_NEPTUNE_DCSP:
2635	m = (typeof(m)){"LPe1002-SP", "PCIe",
2636	"Obsolete, Unsupported Fibre Channel Adapter"};
2637	break;
2638	case PCI_DEVICE_ID_BMID:
2639	m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2640	break;
2641	case PCI_DEVICE_ID_BSMB:
2642	m = (typeof(m)){"LP111", "PCI-X2",
2643	"Obsolete, Unsupported Fibre Channel Adapter"};
2644	break;
2645	case PCI_DEVICE_ID_ZEPHYR:
2646	m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2647	break;
2648	case PCI_DEVICE_ID_ZEPHYR_SCSP:
2649	m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2650	break;
2651	case PCI_DEVICE_ID_ZEPHYR_DCSP:
2652	m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2653	GE = 1;
2654	break;
2655	case PCI_DEVICE_ID_ZMID:
2656	m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2657	break;
2658	case PCI_DEVICE_ID_ZSMB:
2659	m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2660	break;
2661	case PCI_DEVICE_ID_LP101:
2662	m = (typeof(m)){"LP101", "PCI-X",
2663	"Obsolete, Unsupported Fibre Channel Adapter"};
2664	break;
2665	case PCI_DEVICE_ID_LP10000S:
2666	m = (typeof(m)){"LP10000-S", "PCI",
2667	"Obsolete, Unsupported Fibre Channel Adapter"};
2668	break;
2669	case PCI_DEVICE_ID_LP11000S:
2670	m = (typeof(m)){"LP11000-S", "PCI-X2",
2671	"Obsolete, Unsupported Fibre Channel Adapter"};
2672	break;
2673	case PCI_DEVICE_ID_LPE11000S:
2674	m = (typeof(m)){"LPe11000-S", "PCIe",
2675	"Obsolete, Unsupported Fibre Channel Adapter"};
2676	break;
2677	case PCI_DEVICE_ID_SAT:
2678	m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2679	break;
2680	case PCI_DEVICE_ID_SAT_MID:
2681	m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2682	break;
2683	case PCI_DEVICE_ID_SAT_SMB:
2684	m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2685	break;
2686	case PCI_DEVICE_ID_SAT_DCSP:
2687	m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2688	break;
2689	case PCI_DEVICE_ID_SAT_SCSP:
2690	m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2691	break;
2692	case PCI_DEVICE_ID_SAT_S:
2693	m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2694	break;
2695	case PCI_DEVICE_ID_PROTEUS_VF:
2696	m = (typeof(m)){"LPev12000", "PCIe IOV",
2697	"Obsolete, Unsupported Fibre Channel Adapter"};
2698	break;
2699	case PCI_DEVICE_ID_PROTEUS_PF:
2700	m = (typeof(m)){"LPev12000", "PCIe IOV",
2701	"Obsolete, Unsupported Fibre Channel Adapter"};
2702	break;
2703	case PCI_DEVICE_ID_PROTEUS_S:
2704	m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2705	"Obsolete, Unsupported Fibre Channel Adapter"};
2706	break;
2707	case PCI_DEVICE_ID_TIGERSHARK:
2708	oneConnect = 1;
2709	m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2710	break;
2711	case PCI_DEVICE_ID_TOMCAT:
2712	oneConnect = 1;
2713	m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2714	break;
2715	case PCI_DEVICE_ID_FALCON:
2716	m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2717	"EmulexSecure Fibre"};
2718	break;
2719	case PCI_DEVICE_ID_BALIUS:
2720	m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2721	"Obsolete, Unsupported Fibre Channel Adapter"};
2722	break;
2723	case PCI_DEVICE_ID_LANCER_FC:
2724	m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2725	break;
2726	case PCI_DEVICE_ID_LANCER_FC_VF:
2727	m = (typeof(m)){"LPe16000", "PCIe",
2728	"Obsolete, Unsupported Fibre Channel Adapter"};
2729	break;
2730	case PCI_DEVICE_ID_LANCER_FCOE:
2731	oneConnect = 1;
2732	m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2733	break;
2734	case PCI_DEVICE_ID_LANCER_FCOE_VF:
2735	oneConnect = 1;
2736	m = (typeof(m)){"OCe15100", "PCIe",
2737	"Obsolete, Unsupported FCoE"};
2738	break;
2739	case PCI_DEVICE_ID_LANCER_G6_FC:
2740	m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2741	break;
2742	case PCI_DEVICE_ID_LANCER_G7_FC:
2743	m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2744	break;
2745	case PCI_DEVICE_ID_LANCER_G7P_FC:
2746	m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2747	break;
2748	case PCI_DEVICE_ID_SKYHAWK:
2749	case PCI_DEVICE_ID_SKYHAWK_VF:
2750	oneConnect = 1;
2751	m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2752	break;
2753	default:
2754	m = (typeof(m)){"Unknown", "", ""};
2755	break;
2756	}
2757
2758	if (mdp && mdp[0] == '\0')
2759	snprintf(buf: mdp, size: 79,fmt: "%s", m.name);
2760	/*
2761	* oneConnect hba requires special processing, they are all initiators
2762	* and we put the port number on the end
2763	*/
2764	if (descp && descp[0] == '\0') {
2765	if (oneConnect)
2766	snprintf(buf: descp, size: 255,
2767	fmt: "Emulex OneConnect %s, %s Initiator %s",
2768	m.name, m.function,
2769	phba->Port);
2770	else if (max_speed == 0)
2771	snprintf(buf: descp, size: 255,
2772	fmt: "Emulex %s %s %s",
2773	m.name, m.bus, m.function);
2774	else
2775	snprintf(buf: descp, size: 255,
2776	fmt: "Emulex %s %d%s %s %s",
2777	m.name, max_speed, (GE) ? "GE" : "Gb",
2778	m.bus, m.function);
2779	}
2780	}
2781
2782	/**
2783	* lpfc_sli3_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2784	* @phba: pointer to lpfc hba data structure.
2785	* @pring: pointer to a IOCB ring.
2786	* @cnt: the number of IOCBs to be posted to the IOCB ring.
2787	*
2788	* This routine posts a given number of IOCBs with the associated DMA buffer
2789	* descriptors specified by the cnt argument to the given IOCB ring.
2790	*
2791	* Return codes
2792	* The number of IOCBs NOT able to be posted to the IOCB ring.
2793	**/
2794	int
2795	lpfc_sli3_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2796	{
2797	IOCB_t *icmd;
2798	struct lpfc_iocbq *iocb;
2799	struct lpfc_dmabuf *mp1, *mp2;
2800
2801	cnt += pring->missbufcnt;
2802
2803	/* While there are buffers to post */
2804	while (cnt > 0) {
2805	/* Allocate buffer for command iocb */
2806	iocb = lpfc_sli_get_iocbq(phba);
2807	if (iocb == NULL) {
2808	pring->missbufcnt = cnt;
2809	return cnt;
2810	}
2811	icmd = &iocb->iocb;
2812
2813	/* 2 buffers can be posted per command */
2814	/* Allocate buffer to post */
2815	mp1 = kmalloc(size: sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2816	if (mp1)
2817	mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2818	if (!mp1 || !mp1->virt) {
2819	kfree(objp: mp1);
2820	lpfc_sli_release_iocbq(phba, iocb);
2821	pring->missbufcnt = cnt;
2822	return cnt;
2823	}
2824
2825	INIT_LIST_HEAD(list: &mp1->list);
2826	/* Allocate buffer to post */
2827	if (cnt > 1) {
2828	mp2 = kmalloc(size: sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2829	if (mp2)
2830	mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2831	&mp2->phys);
2832	if (!mp2 || !mp2->virt) {
2833	kfree(objp: mp2);
2834	lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2835	kfree(objp: mp1);
2836	lpfc_sli_release_iocbq(phba, iocb);
2837	pring->missbufcnt = cnt;
2838	return cnt;
2839	}
2840
2841	INIT_LIST_HEAD(list: &mp2->list);
2842	} else {
2843	mp2 = NULL;
2844	}
2845
2846	icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2847	icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2848	icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2849	icmd->ulpBdeCount = 1;
2850	cnt--;
2851	if (mp2) {
2852	icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2853	icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2854	icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2855	cnt--;
2856	icmd->ulpBdeCount = 2;
2857	}
2858
2859	icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2860	icmd->ulpLe = 1;
2861
2862	if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2863	IOCB_ERROR) {
2864	lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2865	kfree(objp: mp1);
2866	cnt++;
2867	if (mp2) {
2868	lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2869	kfree(objp: mp2);
2870	cnt++;
2871	}
2872	lpfc_sli_release_iocbq(phba, iocb);
2873	pring->missbufcnt = cnt;
2874	return cnt;
2875	}
2876	lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2877	if (mp2)
2878	lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2879	}
2880	pring->missbufcnt = 0;
2881	return 0;
2882	}
2883
2884	/**
2885	* lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2886	* @phba: pointer to lpfc hba data structure.
2887	*
2888	* This routine posts initial receive IOCB buffers to the ELS ring. The
2889	* current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2890	* set to 64 IOCBs. SLI3 only.
2891	*
2892	* Return codes
2893	* 0 - success (currently always success)
2894	**/
2895	static int
2896	lpfc_post_rcv_buf(struct lpfc_hba *phba)
2897	{
2898	struct lpfc_sli *psli = &phba->sli;
2899
2900	/* Ring 0, ELS / CT buffers */
2901	lpfc_sli3_post_buffer(phba, pring: &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2902	/* Ring 2 - FCP no buffers needed */
2903
2904	return 0;
2905	}
2906
2907	#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2908
2909	/**
2910	* lpfc_sha_init - Set up initial array of hash table entries
2911	* @HashResultPointer: pointer to an array as hash table.
2912	*
2913	* This routine sets up the initial values to the array of hash table entries
2914	* for the LC HBAs.
2915	**/
2916	static void
2917	lpfc_sha_init(uint32_t * HashResultPointer)
2918	{
2919	HashResultPointer[0] = 0x67452301;
2920	HashResultPointer[1] = 0xEFCDAB89;
2921	HashResultPointer[2] = 0x98BADCFE;
2922	HashResultPointer[3] = 0x10325476;
2923	HashResultPointer[4] = 0xC3D2E1F0;
2924	}
2925
2926	/**
2927	* lpfc_sha_iterate - Iterate initial hash table with the working hash table
2928	* @HashResultPointer: pointer to an initial/result hash table.
2929	* @HashWorkingPointer: pointer to an working hash table.
2930	*
2931	* This routine iterates an initial hash table pointed by @HashResultPointer
2932	* with the values from the working hash table pointeed by @HashWorkingPointer.
2933	* The results are putting back to the initial hash table, returned through
2934	* the @HashResultPointer as the result hash table.
2935	**/
2936	static void
2937	lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2938	{
2939	int t;
2940	uint32_t TEMP;
2941	uint32_t A, B, C, D, E;
2942	t = 16;
2943	do {
2944	HashWorkingPointer[t] =
2945	S(1,
2946	HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2947	8] ^
2948	HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2949	} while (++t <= 79);
2950	t = 0;
2951	A = HashResultPointer[0];
2952	B = HashResultPointer[1];
2953	C = HashResultPointer[2];
2954	D = HashResultPointer[3];
2955	E = HashResultPointer[4];
2956
2957	do {
2958	if (t < 20) {
2959	TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2960	} else if (t < 40) {
2961	TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2962	} else if (t < 60) {
2963	TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2964	} else {
2965	TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2966	}
2967	TEMP += S(5, A) + E + HashWorkingPointer[t];
2968	E = D;
2969	D = C;
2970	C = S(30, B);
2971	B = A;
2972	A = TEMP;
2973	} while (++t <= 79);
2974
2975	HashResultPointer[0] += A;
2976	HashResultPointer[1] += B;
2977	HashResultPointer[2] += C;
2978	HashResultPointer[3] += D;
2979	HashResultPointer[4] += E;
2980
2981	}
2982
2983	/**
2984	* lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2985	* @RandomChallenge: pointer to the entry of host challenge random number array.
2986	* @HashWorking: pointer to the entry of the working hash array.
2987	*
2988	* This routine calculates the working hash array referred by @HashWorking
2989	* from the challenge random numbers associated with the host, referred by
2990	* @RandomChallenge. The result is put into the entry of the working hash
2991	* array and returned by reference through @HashWorking.
2992	**/
2993	static void
2994	lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2995	{
2996	*HashWorking = (*RandomChallenge ^ *HashWorking);
2997	}
2998
2999	/**
3000	* lpfc_hba_init - Perform special handling for LC HBA initialization
3001	* @phba: pointer to lpfc hba data structure.
3002	* @hbainit: pointer to an array of unsigned 32-bit integers.
3003	*
3004	* This routine performs the special handling for LC HBA initialization.
3005	**/
3006	void
3007	lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
3008	{
3009	int t;
3010	uint32_t *HashWorking;
3011	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
3012
3013	HashWorking = kcalloc(n: 80, size: sizeof(uint32_t), GFP_KERNEL);
3014	if (!HashWorking)
3015	return;
3016
3017	HashWorking[0] = HashWorking[78] = *pwwnn++;
3018	HashWorking[1] = HashWorking[79] = *pwwnn;
3019
3020	for (t = 0; t < 7; t++)
3021	lpfc_challenge_key(RandomChallenge: phba->RandomData + t, HashWorking: HashWorking + t);
3022
3023	lpfc_sha_init(HashResultPointer: hbainit);
3024	lpfc_sha_iterate(HashResultPointer: hbainit, HashWorkingPointer: HashWorking);
3025	kfree(objp: HashWorking);
3026	}
3027
3028	/**
3029	* lpfc_cleanup - Performs vport cleanups before deleting a vport
3030	* @vport: pointer to a virtual N_Port data structure.
3031	*
3032	* This routine performs the necessary cleanups before deleting the @vport.
3033	* It invokes the discovery state machine to perform necessary state
3034	* transitions and to release the ndlps associated with the @vport. Note,
3035	* the physical port is treated as @vport 0.
3036	**/
3037	void
3038	lpfc_cleanup(struct lpfc_vport *vport)
3039	{
3040	struct lpfc_hba *phba = vport->phba;
3041	struct lpfc_nodelist *ndlp, *next_ndlp;
3042	int i = 0;
3043
3044	if (phba->link_state > LPFC_LINK_DOWN)
3045	lpfc_port_link_failure(vport);
3046
3047	/* Clean up VMID resources */
3048	if (lpfc_is_vmid_enabled(phba))
3049	lpfc_vmid_vport_cleanup(vport);
3050
3051	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3052	if (vport->port_type != LPFC_PHYSICAL_PORT &&
3053	ndlp->nlp_DID == Fabric_DID) {
3054	/* Just free up ndlp with Fabric_DID for vports */
3055	lpfc_nlp_put(ndlp);
3056	continue;
3057	}
3058
3059	if (ndlp->nlp_DID == Fabric_Cntl_DID &&
3060	ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3061	lpfc_nlp_put(ndlp);
3062	continue;
3063	}
3064
3065	/* Fabric Ports not in UNMAPPED state are cleaned up in the
3066	* DEVICE_RM event.
3067	*/
3068	if (ndlp->nlp_type & NLP_FABRIC &&
3069	ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
3070	lpfc_disc_state_machine(vport, ndlp, NULL,
3071	NLP_EVT_DEVICE_RECOVERY);
3072
3073	if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
3074	lpfc_disc_state_machine(vport, ndlp, NULL,
3075	NLP_EVT_DEVICE_RM);
3076	}
3077
3078	/* This is a special case flush to return all
3079	* IOs before entering this loop. There are
3080	* two points in the code where a flush is
3081	* avoided if the FC_UNLOADING flag is set.
3082	* one is in the multipool destroy,
3083	* (this prevents a crash) and the other is
3084	* in the nvme abort handler, ( also prevents
3085	* a crash). Both of these exceptions are
3086	* cases where the slot is still accessible.
3087	* The flush here is only when the pci slot
3088	* is offline.
3089	*/
3090	if (test_bit(FC_UNLOADING, &vport->load_flag) &&
3091	pci_channel_offline(pdev: phba->pcidev))
3092	lpfc_sli_flush_io_rings(phba: vport->phba);
3093
3094	/* At this point, ALL ndlp's should be gone
3095	* because of the previous NLP_EVT_DEVICE_RM.
3096	* Lets wait for this to happen, if needed.
3097	*/
3098	while (!list_empty(head: &vport->fc_nodes)) {
3099	if (i++ > 3000) {
3100	lpfc_printf_vlog(vport, KERN_ERR,
3101	LOG_TRACE_EVENT,
3102	"0233 Nodelist not empty\n");
3103	list_for_each_entry_safe(ndlp, next_ndlp,
3104	&vport->fc_nodes, nlp_listp) {
3105	lpfc_printf_vlog(ndlp->vport, KERN_ERR,
3106	LOG_DISCOVERY,
3107	"0282 did:x%x ndlp:x%px "
3108	"refcnt:%d xflags x%x nflag x%x\n",
3109	ndlp->nlp_DID, (void *)ndlp,
3110	kref_read(&ndlp->kref),
3111	ndlp->fc4_xpt_flags,
3112	ndlp->nlp_flag);
3113	}
3114	break;
3115	}
3116
3117	/* Wait for any activity on ndlps to settle */
3118	msleep(msecs: 10);
3119	}
3120	lpfc_cleanup_vports_rrqs(vport, NULL);
3121	}
3122
3123	/**
3124	* lpfc_stop_vport_timers - Stop all the timers associated with a vport
3125	* @vport: pointer to a virtual N_Port data structure.
3126	*
3127	* This routine stops all the timers associated with a @vport. This function
3128	* is invoked before disabling or deleting a @vport. Note that the physical
3129	* port is treated as @vport 0.
3130	**/
3131	void
3132	lpfc_stop_vport_timers(struct lpfc_vport *vport)
3133	{
3134	del_timer_sync(timer: &vport->els_tmofunc);
3135	del_timer_sync(timer: &vport->delayed_disc_tmo);
3136	lpfc_can_disctmo(vport);
3137	return;
3138	}
3139
3140	/**
3141	* __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3142	* @phba: pointer to lpfc hba data structure.
3143	*
3144	* This routine stops the SLI4 FCF rediscover wait timer if it's on. The
3145	* caller of this routine should already hold the host lock.
3146	**/
3147	void
3148	__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3149	{
3150	/* Clear pending FCF rediscovery wait flag */
3151	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3152
3153	/* Now, try to stop the timer */
3154	del_timer(timer: &phba->fcf.redisc_wait);
3155	}
3156
3157	/**
3158	* lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3159	* @phba: pointer to lpfc hba data structure.
3160	*
3161	* This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3162	* checks whether the FCF rediscovery wait timer is pending with the host
3163	* lock held before proceeding with disabling the timer and clearing the
3164	* wait timer pendig flag.
3165	**/
3166	void
3167	lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3168	{
3169	spin_lock_irq(lock: &phba->hbalock);
3170	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3171	/* FCF rediscovery timer already fired or stopped */
3172	spin_unlock_irq(lock: &phba->hbalock);
3173	return;
3174	}
3175	__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3176	/* Clear failover in progress flags */
3177	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3178	spin_unlock_irq(lock: &phba->hbalock);
3179	}
3180
3181	/**
3182	* lpfc_cmf_stop - Stop CMF processing
3183	* @phba: pointer to lpfc hba data structure.
3184	*
3185	* This is called when the link goes down or if CMF mode is turned OFF.
3186	* It is also called when going offline or unloaded just before the
3187	* congestion info buffer is unregistered.
3188	**/
3189	void
3190	lpfc_cmf_stop(struct lpfc_hba *phba)
3191	{
3192	int cpu;
3193	struct lpfc_cgn_stat *cgs;
3194
3195	/* We only do something if CMF is enabled */
3196	if (!phba->sli4_hba.pc_sli4_params.cmf)
3197	return;
3198
3199	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3200	"6221 Stop CMF / Cancel Timer\n");
3201
3202	/* Cancel the CMF timer */
3203	hrtimer_cancel(timer: &phba->cmf_stats_timer);
3204	hrtimer_cancel(timer: &phba->cmf_timer);
3205
3206	/* Zero CMF counters */
3207	atomic_set(v: &phba->cmf_busy, i: 0);
3208	for_each_present_cpu(cpu) {
3209	cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3210	atomic64_set(v: &cgs->total_bytes, i: 0);
3211	atomic64_set(v: &cgs->rcv_bytes, i: 0);
3212	atomic_set(v: &cgs->rx_io_cnt, i: 0);
3213	atomic64_set(v: &cgs->rx_latency, i: 0);
3214	}
3215	atomic_set(v: &phba->cmf_bw_wait, i: 0);
3216
3217	/* Resume any blocked IO - Queue unblock on workqueue */
3218	queue_work(wq: phba->wq, work: &phba->unblock_request_work);
3219	}
3220
3221	static inline uint64_t
3222	lpfc_get_max_line_rate(struct lpfc_hba *phba)
3223	{
3224	uint64_t rate = lpfc_sli_port_speed_get(phba);
3225
3226	return ((((unsigned long)rate) * 1024 * 1024) / 10);
3227	}
3228
3229	void
3230	lpfc_cmf_signal_init(struct lpfc_hba *phba)
3231	{
3232	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3233	"6223 Signal CMF init\n");
3234
3235	/* Use the new fc_linkspeed to recalculate */
3236	phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3237	phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3238	phba->cmf_link_byte_count = div_u64(dividend: phba->cmf_max_line_rate *
3239	phba->cmf_interval_rate, divisor: 1000);
3240	phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3241
3242	/* This is a signal to firmware to sync up CMF BW with link speed */
3243	lpfc_issue_cmf_sync_wqe(phba, ms: 0, total: 0);
3244	}
3245
3246	/**
3247	* lpfc_cmf_start - Start CMF processing
3248	* @phba: pointer to lpfc hba data structure.
3249	*
3250	* This is called when the link comes up or if CMF mode is turned OFF
3251	* to Monitor or Managed.
3252	**/
3253	void
3254	lpfc_cmf_start(struct lpfc_hba *phba)
3255	{
3256	struct lpfc_cgn_stat *cgs;
3257	int cpu;
3258
3259	/* We only do something if CMF is enabled */
3260	if (!phba->sli4_hba.pc_sli4_params.cmf ||
3261	phba->cmf_active_mode == LPFC_CFG_OFF)
3262	return;
3263
3264	/* Reinitialize congestion buffer info */
3265	lpfc_init_congestion_buf(phba);
3266
3267	atomic_set(v: &phba->cgn_fabric_warn_cnt, i: 0);
3268	atomic_set(v: &phba->cgn_fabric_alarm_cnt, i: 0);
3269	atomic_set(v: &phba->cgn_sync_alarm_cnt, i: 0);
3270	atomic_set(v: &phba->cgn_sync_warn_cnt, i: 0);
3271
3272	atomic_set(v: &phba->cmf_busy, i: 0);
3273	for_each_present_cpu(cpu) {
3274	cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3275	atomic64_set(v: &cgs->total_bytes, i: 0);
3276	atomic64_set(v: &cgs->rcv_bytes, i: 0);
3277	atomic_set(v: &cgs->rx_io_cnt, i: 0);
3278	atomic64_set(v: &cgs->rx_latency, i: 0);
3279	}
3280	phba->cmf_latency.tv_sec = 0;
3281	phba->cmf_latency.tv_nsec = 0;
3282
3283	lpfc_cmf_signal_init(phba);
3284
3285	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3286	"6222 Start CMF / Timer\n");
3287
3288	phba->cmf_timer_cnt = 0;
3289	hrtimer_start(timer: &phba->cmf_timer,
3290	tim: ktime_set(secs: 0, LPFC_CMF_INTERVAL * NSEC_PER_MSEC),
3291	mode: HRTIMER_MODE_REL);
3292	hrtimer_start(timer: &phba->cmf_stats_timer,
3293	tim: ktime_set(secs: 0, LPFC_SEC_MIN * NSEC_PER_SEC),
3294	mode: HRTIMER_MODE_REL);
3295	/* Setup for latency check in IO cmpl routines */
3296	ktime_get_real_ts64(tv: &phba->cmf_latency);
3297
3298	atomic_set(v: &phba->cmf_bw_wait, i: 0);
3299	atomic_set(v: &phba->cmf_stop_io, i: 0);
3300	}
3301
3302	/**
3303	* lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3304	* @phba: pointer to lpfc hba data structure.
3305	*
3306	* This routine stops all the timers associated with a HBA. This function is
3307	* invoked before either putting a HBA offline or unloading the driver.
3308	**/
3309	void
3310	lpfc_stop_hba_timers(struct lpfc_hba *phba)
3311	{
3312	if (phba->pport)
3313	lpfc_stop_vport_timers(vport: phba->pport);
3314	cancel_delayed_work_sync(dwork: &phba->eq_delay_work);
3315	cancel_delayed_work_sync(dwork: &phba->idle_stat_delay_work);
3316	del_timer_sync(timer: &phba->sli.mbox_tmo);
3317	del_timer_sync(timer: &phba->fabric_block_timer);
3318	del_timer_sync(timer: &phba->eratt_poll);
3319	del_timer_sync(timer: &phba->hb_tmofunc);
3320	if (phba->sli_rev == LPFC_SLI_REV4) {
3321	del_timer_sync(timer: &phba->rrq_tmr);
3322	phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3323	}
3324	phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3325
3326	switch (phba->pci_dev_grp) {
3327	case LPFC_PCI_DEV_LP:
3328	/* Stop any LightPulse device specific driver timers */
3329	del_timer_sync(timer: &phba->fcp_poll_timer);
3330	break;
3331	case LPFC_PCI_DEV_OC:
3332	/* Stop any OneConnect device specific driver timers */
3333	lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3334	break;
3335	default:
3336	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3337	"0297 Invalid device group (x%x)\n",
3338	phba->pci_dev_grp);
3339	break;
3340	}
3341	return;
3342	}
3343
3344	/**
3345	* lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3346	* @phba: pointer to lpfc hba data structure.
3347	* @mbx_action: flag for mailbox no wait action.
3348	*
3349	* This routine marks a HBA's management interface as blocked. Once the HBA's
3350	* management interface is marked as blocked, all the user space access to
3351	* the HBA, whether they are from sysfs interface or libdfc interface will
3352	* all be blocked. The HBA is set to block the management interface when the
3353	* driver prepares the HBA interface for online or offline.
3354	**/
3355	static void
3356	lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3357	{
3358	unsigned long iflag;
3359	uint8_t actcmd = MBX_HEARTBEAT;
3360	unsigned long timeout;
3361
3362	spin_lock_irqsave(&phba->hbalock, iflag);
3363	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3364	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflag);
3365	if (mbx_action == LPFC_MBX_NO_WAIT)
3366	return;
3367	timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3368	spin_lock_irqsave(&phba->hbalock, iflag);
3369	if (phba->sli.mbox_active) {
3370	actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3371	/* Determine how long we might wait for the active mailbox
3372	* command to be gracefully completed by firmware.
3373	*/
3374	timeout = msecs_to_jiffies(m: lpfc_mbox_tmo_val(phba,
3375	phba->sli.mbox_active) * 1000) + jiffies;
3376	}
3377	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflag);
3378
3379	/* Wait for the outstnading mailbox command to complete */
3380	while (phba->sli.mbox_active) {
3381	/* Check active mailbox complete status every 2ms */
3382	msleep(msecs: 2);
3383	if (time_after(jiffies, timeout)) {
3384	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3385	"2813 Mgmt IO is Blocked %x "
3386	"- mbox cmd %x still active\n",
3387	phba->sli.sli_flag, actcmd);
3388	break;
3389	}
3390	}
3391	}
3392
3393	/**
3394	* lpfc_sli4_node_prep - Assign RPIs for active nodes.
3395	* @phba: pointer to lpfc hba data structure.
3396	*
3397	* Allocate RPIs for all active remote nodes. This is needed whenever
3398	* an SLI4 adapter is reset and the driver is not unloading. Its purpose
3399	* is to fixup the temporary rpi assignments.
3400	**/
3401	void
3402	lpfc_sli4_node_prep(struct lpfc_hba *phba)
3403	{
3404	struct lpfc_nodelist *ndlp, *next_ndlp;
3405	struct lpfc_vport **vports;
3406	int i, rpi;
3407
3408	if (phba->sli_rev != LPFC_SLI_REV4)
3409	return;
3410
3411	vports = lpfc_create_vport_work_array(phba);
3412	if (vports == NULL)
3413	return;
3414
3415	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3416	if (test_bit(FC_UNLOADING, &vports[i]->load_flag))
3417	continue;
3418
3419	list_for_each_entry_safe(ndlp, next_ndlp,
3420	&vports[i]->fc_nodes,
3421	nlp_listp) {
3422	rpi = lpfc_sli4_alloc_rpi(phba);
3423	if (rpi == LPFC_RPI_ALLOC_ERROR) {
3424	/* TODO print log? */
3425	continue;
3426	}
3427	ndlp->nlp_rpi = rpi;
3428	lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3429	LOG_NODE | LOG_DISCOVERY,
3430	"0009 Assign RPI x%x to ndlp x%px "
3431	"DID:x%06x flg:x%x\n",
3432	ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3433	ndlp->nlp_flag);
3434	}
3435	}
3436	lpfc_destroy_vport_work_array(phba, vports);
3437	}
3438
3439	/**
3440	* lpfc_create_expedite_pool - create expedite pool
3441	* @phba: pointer to lpfc hba data structure.
3442	*
3443	* This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3444	* to expedite pool. Mark them as expedite.
3445	**/
3446	static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3447	{
3448	struct lpfc_sli4_hdw_queue *qp;
3449	struct lpfc_io_buf *lpfc_ncmd;
3450	struct lpfc_io_buf *lpfc_ncmd_next;
3451	struct lpfc_epd_pool *epd_pool;
3452	unsigned long iflag;
3453
3454	epd_pool = &phba->epd_pool;
3455	qp = &phba->sli4_hba.hdwq[0];
3456
3457	spin_lock_init(&epd_pool->lock);
3458	spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3459	spin_lock(lock: &epd_pool->lock);
3460	INIT_LIST_HEAD(list: &epd_pool->list);
3461	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3462	&qp->lpfc_io_buf_list_put, list) {
3463	list_move_tail(list: &lpfc_ncmd->list, head: &epd_pool->list);
3464	lpfc_ncmd->expedite = true;
3465	qp->put_io_bufs--;
3466	epd_pool->count++;
3467	if (epd_pool->count >= XRI_BATCH)
3468	break;
3469	}
3470	spin_unlock(lock: &epd_pool->lock);
3471	spin_unlock_irqrestore(lock: &qp->io_buf_list_put_lock, flags: iflag);
3472	}
3473
3474	/**
3475	* lpfc_destroy_expedite_pool - destroy expedite pool
3476	* @phba: pointer to lpfc hba data structure.
3477	*
3478	* This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3479	* of HWQ 0. Clear the mark.
3480	**/
3481	static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3482	{
3483	struct lpfc_sli4_hdw_queue *qp;
3484	struct lpfc_io_buf *lpfc_ncmd;
3485	struct lpfc_io_buf *lpfc_ncmd_next;
3486	struct lpfc_epd_pool *epd_pool;
3487	unsigned long iflag;
3488
3489	epd_pool = &phba->epd_pool;
3490	qp = &phba->sli4_hba.hdwq[0];
3491
3492	spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3493	spin_lock(lock: &epd_pool->lock);
3494	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3495	&epd_pool->list, list) {
3496	list_move_tail(list: &lpfc_ncmd->list,
3497	head: &qp->lpfc_io_buf_list_put);
3498	lpfc_ncmd->flags = false;
3499	qp->put_io_bufs++;
3500	epd_pool->count--;
3501	}
3502	spin_unlock(lock: &epd_pool->lock);
3503	spin_unlock_irqrestore(lock: &qp->io_buf_list_put_lock, flags: iflag);
3504	}
3505
3506	/**
3507	* lpfc_create_multixri_pools - create multi-XRI pools
3508	* @phba: pointer to lpfc hba data structure.
3509	*
3510	* This routine initialize public, private per HWQ. Then, move XRIs from
3511	* lpfc_io_buf_list_put to public pool. High and low watermark are also
3512	* Initialized.
3513	**/
3514	void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3515	{
3516	u32 i, j;
3517	u32 hwq_count;
3518	u32 count_per_hwq;
3519	struct lpfc_io_buf *lpfc_ncmd;
3520	struct lpfc_io_buf *lpfc_ncmd_next;
3521	unsigned long iflag;
3522	struct lpfc_sli4_hdw_queue *qp;
3523	struct lpfc_multixri_pool *multixri_pool;
3524	struct lpfc_pbl_pool *pbl_pool;
3525	struct lpfc_pvt_pool *pvt_pool;
3526
3527	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3528	"1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3529	phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3530	phba->sli4_hba.io_xri_cnt);
3531
3532	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3533	lpfc_create_expedite_pool(phba);
3534
3535	hwq_count = phba->cfg_hdw_queue;
3536	count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3537
3538	for (i = 0; i < hwq_count; i++) {
3539	multixri_pool = kzalloc(size: sizeof(*multixri_pool), GFP_KERNEL);
3540
3541	if (!multixri_pool) {
3542	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3543	"1238 Failed to allocate memory for "
3544	"multixri_pool\n");
3545
3546	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3547	lpfc_destroy_expedite_pool(phba);
3548
3549	j = 0;
3550	while (j < i) {
3551	qp = &phba->sli4_hba.hdwq[j];
3552	kfree(objp: qp->p_multixri_pool);
3553	j++;
3554	}
3555	phba->cfg_xri_rebalancing = 0;
3556	return;
3557	}
3558
3559	qp = &phba->sli4_hba.hdwq[i];
3560	qp->p_multixri_pool = multixri_pool;
3561
3562	multixri_pool->xri_limit = count_per_hwq;
3563	multixri_pool->rrb_next_hwqid = i;
3564
3565	/* Deal with public free xri pool */
3566	pbl_pool = &multixri_pool->pbl_pool;
3567	spin_lock_init(&pbl_pool->lock);
3568	spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3569	spin_lock(lock: &pbl_pool->lock);
3570	INIT_LIST_HEAD(list: &pbl_pool->list);
3571	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3572	&qp->lpfc_io_buf_list_put, list) {
3573	list_move_tail(list: &lpfc_ncmd->list, head: &pbl_pool->list);
3574	qp->put_io_bufs--;
3575	pbl_pool->count++;
3576	}
3577	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3578	"1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3579	pbl_pool->count, i);
3580	spin_unlock(lock: &pbl_pool->lock);
3581	spin_unlock_irqrestore(lock: &qp->io_buf_list_put_lock, flags: iflag);
3582
3583	/* Deal with private free xri pool */
3584	pvt_pool = &multixri_pool->pvt_pool;
3585	pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3586	pvt_pool->low_watermark = XRI_BATCH;
3587	spin_lock_init(&pvt_pool->lock);
3588	spin_lock_irqsave(&pvt_pool->lock, iflag);
3589	INIT_LIST_HEAD(list: &pvt_pool->list);
3590	pvt_pool->count = 0;
3591	spin_unlock_irqrestore(lock: &pvt_pool->lock, flags: iflag);
3592	}
3593	}
3594
3595	/**
3596	* lpfc_destroy_multixri_pools - destroy multi-XRI pools
3597	* @phba: pointer to lpfc hba data structure.
3598	*
3599	* This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3600	**/
3601	static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3602	{
3603	u32 i;
3604	u32 hwq_count;
3605	struct lpfc_io_buf *lpfc_ncmd;
3606	struct lpfc_io_buf *lpfc_ncmd_next;
3607	unsigned long iflag;
3608	struct lpfc_sli4_hdw_queue *qp;
3609	struct lpfc_multixri_pool *multixri_pool;
3610	struct lpfc_pbl_pool *pbl_pool;
3611	struct lpfc_pvt_pool *pvt_pool;
3612
3613	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3614	lpfc_destroy_expedite_pool(phba);
3615
3616	if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))
3617	lpfc_sli_flush_io_rings(phba);
3618
3619	hwq_count = phba->cfg_hdw_queue;
3620
3621	for (i = 0; i < hwq_count; i++) {
3622	qp = &phba->sli4_hba.hdwq[i];
3623	multixri_pool = qp->p_multixri_pool;
3624	if (!multixri_pool)
3625	continue;
3626
3627	qp->p_multixri_pool = NULL;
3628
3629	spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3630
3631	/* Deal with public free xri pool */
3632	pbl_pool = &multixri_pool->pbl_pool;
3633	spin_lock(lock: &pbl_pool->lock);
3634
3635	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3636	"1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3637	pbl_pool->count, i);
3638
3639	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3640	&pbl_pool->list, list) {
3641	list_move_tail(list: &lpfc_ncmd->list,
3642	head: &qp->lpfc_io_buf_list_put);
3643	qp->put_io_bufs++;
3644	pbl_pool->count--;
3645	}
3646
3647	INIT_LIST_HEAD(list: &pbl_pool->list);
3648	pbl_pool->count = 0;
3649
3650	spin_unlock(lock: &pbl_pool->lock);
3651
3652	/* Deal with private free xri pool */
3653	pvt_pool = &multixri_pool->pvt_pool;
3654	spin_lock(lock: &pvt_pool->lock);
3655
3656	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3657	"1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3658	pvt_pool->count, i);
3659
3660	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3661	&pvt_pool->list, list) {
3662	list_move_tail(list: &lpfc_ncmd->list,
3663	head: &qp->lpfc_io_buf_list_put);
3664	qp->put_io_bufs++;
3665	pvt_pool->count--;
3666	}
3667
3668	INIT_LIST_HEAD(list: &pvt_pool->list);
3669	pvt_pool->count = 0;
3670
3671	spin_unlock(lock: &pvt_pool->lock);
3672	spin_unlock_irqrestore(lock: &qp->io_buf_list_put_lock, flags: iflag);
3673
3674	kfree(objp: multixri_pool);
3675	}
3676	}
3677
3678	/**
3679	* lpfc_online - Initialize and bring a HBA online
3680	* @phba: pointer to lpfc hba data structure.
3681	*
3682	* This routine initializes the HBA and brings a HBA online. During this
3683	* process, the management interface is blocked to prevent user space access
3684	* to the HBA interfering with the driver initialization.
3685	*
3686	* Return codes
3687	* 0 - successful
3688	* 1 - failed
3689	**/
3690	int
3691	lpfc_online(struct lpfc_hba *phba)
3692	{
3693	struct lpfc_vport *vport;
3694	struct lpfc_vport **vports;
3695	int i, error = 0;
3696	bool vpis_cleared = false;
3697
3698	if (!phba)
3699	return 0;
3700	vport = phba->pport;
3701
3702	if (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
3703	return 0;
3704
3705	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3706	"0458 Bring Adapter online\n");
3707
3708	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3709
3710	if (phba->sli_rev == LPFC_SLI_REV4) {
3711	if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3712	lpfc_unblock_mgmt_io(phba);
3713	return 1;
3714	}
3715	spin_lock_irq(lock: &phba->hbalock);
3716	if (!phba->sli4_hba.max_cfg_param.vpi_used)
3717	vpis_cleared = true;
3718	spin_unlock_irq(lock: &phba->hbalock);
3719
3720	/* Reestablish the local initiator port.
3721	* The offline process destroyed the previous lport.
3722	*/
3723	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3724	!phba->nvmet_support) {
3725	error = lpfc_nvme_create_localport(vport: phba->pport);
3726	if (error)
3727	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3728	"6132 NVME restore reg failed "
3729	"on nvmei error x%x\n", error);
3730	}
3731	} else {
3732	lpfc_sli_queue_init(phba);
3733	if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3734	lpfc_unblock_mgmt_io(phba);
3735	return 1;
3736	}
3737	}
3738
3739	vports = lpfc_create_vport_work_array(phba);
3740	if (vports != NULL) {
3741	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3742	clear_bit(nr: FC_OFFLINE_MODE, addr: &vports[i]->fc_flag);
3743	if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3744	set_bit(nr: FC_VPORT_NEEDS_REG_VPI,
3745	addr: &vports[i]->fc_flag);
3746	if (phba->sli_rev == LPFC_SLI_REV4) {
3747	set_bit(nr: FC_VPORT_NEEDS_INIT_VPI,
3748	addr: &vports[i]->fc_flag);
3749	if ((vpis_cleared) &&
3750	(vports[i]->port_type !=
3751	LPFC_PHYSICAL_PORT))
3752	vports[i]->vpi = 0;
3753	}
3754	}
3755	}
3756	lpfc_destroy_vport_work_array(phba, vports);
3757
3758	if (phba->cfg_xri_rebalancing)
3759	lpfc_create_multixri_pools(phba);
3760
3761	lpfc_cpuhp_add(phba);
3762
3763	lpfc_unblock_mgmt_io(phba);
3764	return 0;
3765	}
3766
3767	/**
3768	* lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3769	* @phba: pointer to lpfc hba data structure.
3770	*
3771	* This routine marks a HBA's management interface as not blocked. Once the
3772	* HBA's management interface is marked as not blocked, all the user space
3773	* access to the HBA, whether they are from sysfs interface or libdfc
3774	* interface will be allowed. The HBA is set to block the management interface
3775	* when the driver prepares the HBA interface for online or offline and then
3776	* set to unblock the management interface afterwards.
3777	**/
3778	void
3779	lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3780	{
3781	unsigned long iflag;
3782
3783	spin_lock_irqsave(&phba->hbalock, iflag);
3784	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3785	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflag);
3786	}
3787
3788	/**
3789	* lpfc_offline_prep - Prepare a HBA to be brought offline
3790	* @phba: pointer to lpfc hba data structure.
3791	* @mbx_action: flag for mailbox shutdown action.
3792	*
3793	* This routine is invoked to prepare a HBA to be brought offline. It performs
3794	* unregistration login to all the nodes on all vports and flushes the mailbox
3795	* queue to make it ready to be brought offline.
3796	**/
3797	void
3798	lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3799	{
3800	struct lpfc_vport *vport = phba->pport;
3801	struct lpfc_nodelist *ndlp, *next_ndlp;
3802	struct lpfc_vport **vports;
3803	struct Scsi_Host *shost;
3804	int i;
3805	int offline;
3806	bool hba_pci_err;
3807
3808	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
3809	return;
3810
3811	lpfc_block_mgmt_io(phba, mbx_action);
3812
3813	lpfc_linkdown(phba);
3814
3815	offline = pci_channel_offline(pdev: phba->pcidev);
3816	hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
3817
3818	/* Issue an unreg_login to all nodes on all vports */
3819	vports = lpfc_create_vport_work_array(phba);
3820	if (vports != NULL) {
3821	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3822	if (test_bit(FC_UNLOADING, &vports[i]->load_flag))
3823	continue;
3824	shost = lpfc_shost_from_vport(vport: vports[i]);
3825	spin_lock_irq(lock: shost->host_lock);
3826	vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3827	spin_unlock_irq(lock: shost->host_lock);
3828	set_bit(nr: FC_VPORT_NEEDS_REG_VPI, addr: &vports[i]->fc_flag);
3829	clear_bit(nr: FC_VFI_REGISTERED, addr: &vports[i]->fc_flag);
3830
3831	list_for_each_entry_safe(ndlp, next_ndlp,
3832	&vports[i]->fc_nodes,
3833	nlp_listp) {
3834
3835	spin_lock_irq(lock: &ndlp->lock);
3836	ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3837	spin_unlock_irq(lock: &ndlp->lock);
3838
3839	if (offline || hba_pci_err) {
3840	spin_lock_irq(lock: &ndlp->lock);
3841	ndlp->nlp_flag &= ~(NLP_UNREG_INP |
3842	NLP_RPI_REGISTERED);
3843	spin_unlock_irq(lock: &ndlp->lock);
3844	if (phba->sli_rev == LPFC_SLI_REV4)
3845	lpfc_sli_rpi_release(vport: vports[i],
3846	ndlp);
3847	} else {
3848	lpfc_unreg_rpi(vports[i], ndlp);
3849	}
3850	/*
3851	* Whenever an SLI4 port goes offline, free the
3852	* RPI. Get a new RPI when the adapter port
3853	* comes back online.
3854	*/
3855	if (phba->sli_rev == LPFC_SLI_REV4) {
3856	lpfc_printf_vlog(vports[i], KERN_INFO,
3857	LOG_NODE | LOG_DISCOVERY,
3858	"0011 Free RPI x%x on "
3859	"ndlp: x%px did x%x\n",
3860	ndlp->nlp_rpi, ndlp,
3861	ndlp->nlp_DID);
3862	lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3863	ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3864	}
3865
3866	if (ndlp->nlp_type & NLP_FABRIC) {
3867	lpfc_disc_state_machine(vports[i], ndlp,
3868	NULL, NLP_EVT_DEVICE_RECOVERY);
3869
3870	/* Don't remove the node unless the node
3871	* has been unregistered with the
3872	* transport, and we're not in recovery
3873	* before dev_loss_tmo triggered.
3874	* Otherwise, let dev_loss take care of
3875	* the node.
3876	*/
3877	if (!(ndlp->save_flags &
3878	NLP_IN_RECOV_POST_DEV_LOSS) &&
3879	!(ndlp->fc4_xpt_flags &
3880	(NVME_XPT_REGD | SCSI_XPT_REGD)))
3881	lpfc_disc_state_machine
3882	(vports[i], ndlp,
3883	NULL,
3884	NLP_EVT_DEVICE_RM);
3885	}
3886	}
3887	}
3888	}
3889	lpfc_destroy_vport_work_array(phba, vports);
3890
3891	lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3892
3893	if (phba->wq)
3894	flush_workqueue(phba->wq);
3895	}
3896
3897	/**
3898	* lpfc_offline - Bring a HBA offline
3899	* @phba: pointer to lpfc hba data structure.
3900	*
3901	* This routine actually brings a HBA offline. It stops all the timers
3902	* associated with the HBA, brings down the SLI layer, and eventually
3903	* marks the HBA as in offline state for the upper layer protocol.
3904	**/
3905	void
3906	lpfc_offline(struct lpfc_hba *phba)
3907	{
3908	struct Scsi_Host *shost;
3909	struct lpfc_vport **vports;
3910	int i;
3911
3912	if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
3913	return;
3914
3915	/* stop port and all timers associated with this hba */
3916	lpfc_stop_port(phba);
3917
3918	/* Tear down the local and target port registrations. The
3919	* nvme transports need to cleanup.
3920	*/
3921	lpfc_nvmet_destroy_targetport(phba);
3922	lpfc_nvme_destroy_localport(vport: phba->pport);
3923
3924	vports = lpfc_create_vport_work_array(phba);
3925	if (vports != NULL)
3926	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3927	lpfc_stop_vport_timers(vport: vports[i]);
3928	lpfc_destroy_vport_work_array(phba, vports);
3929	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3930	"0460 Bring Adapter offline\n");
3931	/* Bring down the SLI Layer and cleanup. The HBA is offline
3932	now. */
3933	lpfc_sli_hba_down(phba);
3934	spin_lock_irq(lock: &phba->hbalock);
3935	phba->work_ha = 0;
3936	spin_unlock_irq(lock: &phba->hbalock);
3937	vports = lpfc_create_vport_work_array(phba);
3938	if (vports != NULL)
3939	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3940	shost = lpfc_shost_from_vport(vport: vports[i]);
3941	spin_lock_irq(lock: shost->host_lock);
3942	vports[i]->work_port_events = 0;
3943	spin_unlock_irq(lock: shost->host_lock);
3944	set_bit(nr: FC_OFFLINE_MODE, addr: &vports[i]->fc_flag);
3945	}
3946	lpfc_destroy_vport_work_array(phba, vports);
3947	/* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3948	* in hba_unset
3949	*/
3950	if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
3951	__lpfc_cpuhp_remove(phba);
3952
3953	if (phba->cfg_xri_rebalancing)
3954	lpfc_destroy_multixri_pools(phba);
3955	}
3956
3957	/**
3958	* lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3959	* @phba: pointer to lpfc hba data structure.
3960	*
3961	* This routine is to free all the SCSI buffers and IOCBs from the driver
3962	* list back to kernel. It is called from lpfc_pci_remove_one to free
3963	* the internal resources before the device is removed from the system.
3964	**/
3965	static void
3966	lpfc_scsi_free(struct lpfc_hba *phba)
3967	{
3968	struct lpfc_io_buf *sb, *sb_next;
3969
3970	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3971	return;
3972
3973	spin_lock_irq(lock: &phba->hbalock);
3974
3975	/* Release all the lpfc_scsi_bufs maintained by this host. */
3976
3977	spin_lock(lock: &phba->scsi_buf_list_put_lock);
3978	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3979	list) {
3980	list_del(entry: &sb->list);
3981	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool, vaddr: sb->data,
3982	addr: sb->dma_handle);
3983	kfree(objp: sb);
3984	phba->total_scsi_bufs--;
3985	}
3986	spin_unlock(lock: &phba->scsi_buf_list_put_lock);
3987
3988	spin_lock(lock: &phba->scsi_buf_list_get_lock);
3989	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3990	list) {
3991	list_del(entry: &sb->list);
3992	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool, vaddr: sb->data,
3993	addr: sb->dma_handle);
3994	kfree(objp: sb);
3995	phba->total_scsi_bufs--;
3996	}
3997	spin_unlock(lock: &phba->scsi_buf_list_get_lock);
3998	spin_unlock_irq(lock: &phba->hbalock);
3999	}
4000
4001	/**
4002	* lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
4003	* @phba: pointer to lpfc hba data structure.
4004	*
4005	* This routine is to free all the IO buffers and IOCBs from the driver
4006	* list back to kernel. It is called from lpfc_pci_remove_one to free
4007	* the internal resources before the device is removed from the system.
4008	**/
4009	void
4010	lpfc_io_free(struct lpfc_hba *phba)
4011	{
4012	struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
4013	struct lpfc_sli4_hdw_queue *qp;
4014	int idx;
4015
4016	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4017	qp = &phba->sli4_hba.hdwq[idx];
4018	/* Release all the lpfc_nvme_bufs maintained by this host. */
4019	spin_lock(lock: &qp->io_buf_list_put_lock);
4020	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4021	&qp->lpfc_io_buf_list_put,
4022	list) {
4023	list_del(entry: &lpfc_ncmd->list);
4024	qp->put_io_bufs--;
4025	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool,
4026	vaddr: lpfc_ncmd->data, addr: lpfc_ncmd->dma_handle);
4027	if (phba->cfg_xpsgl && !phba->nvmet_support)
4028	lpfc_put_sgl_per_hdwq(phba, buf: lpfc_ncmd);
4029	lpfc_put_cmd_rsp_buf_per_hdwq(phba, buf: lpfc_ncmd);
4030	kfree(objp: lpfc_ncmd);
4031	qp->total_io_bufs--;
4032	}
4033	spin_unlock(lock: &qp->io_buf_list_put_lock);
4034
4035	spin_lock(lock: &qp->io_buf_list_get_lock);
4036	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4037	&qp->lpfc_io_buf_list_get,
4038	list) {
4039	list_del(entry: &lpfc_ncmd->list);
4040	qp->get_io_bufs--;
4041	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool,
4042	vaddr: lpfc_ncmd->data, addr: lpfc_ncmd->dma_handle);
4043	if (phba->cfg_xpsgl && !phba->nvmet_support)
4044	lpfc_put_sgl_per_hdwq(phba, buf: lpfc_ncmd);
4045	lpfc_put_cmd_rsp_buf_per_hdwq(phba, buf: lpfc_ncmd);
4046	kfree(objp: lpfc_ncmd);
4047	qp->total_io_bufs--;
4048	}
4049	spin_unlock(lock: &qp->io_buf_list_get_lock);
4050	}
4051	}
4052
4053	/**
4054	* lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
4055	* @phba: pointer to lpfc hba data structure.
4056	*
4057	* This routine first calculates the sizes of the current els and allocated
4058	* scsi sgl lists, and then goes through all sgls to updates the physical
4059	* XRIs assigned due to port function reset. During port initialization, the
4060	* current els and allocated scsi sgl lists are 0s.
4061	*
4062	* Return codes
4063	* 0 - successful (for now, it always returns 0)
4064	**/
4065	int
4066	lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
4067	{
4068	struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4069	uint16_t i, lxri, xri_cnt, els_xri_cnt;
4070	LIST_HEAD(els_sgl_list);
4071	int rc;
4072
4073	/*
4074	* update on pci function's els xri-sgl list
4075	*/
4076	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4077
4078	if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
4079	/* els xri-sgl expanded */
4080	xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
4081	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4082	"3157 ELS xri-sgl count increased from "
4083	"%d to %d\n", phba->sli4_hba.els_xri_cnt,
4084	els_xri_cnt);
4085	/* allocate the additional els sgls */
4086	for (i = 0; i < xri_cnt; i++) {
4087	sglq_entry = kzalloc(size: sizeof(struct lpfc_sglq),
4088	GFP_KERNEL);
4089	if (sglq_entry == NULL) {
4090	lpfc_printf_log(phba, KERN_ERR,
4091	LOG_TRACE_EVENT,
4092	"2562 Failure to allocate an "
4093	"ELS sgl entry:%d\n", i);
4094	rc = -ENOMEM;
4095	goto out_free_mem;
4096	}
4097	sglq_entry->buff_type = GEN_BUFF_TYPE;
4098	sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
4099	&sglq_entry->phys);
4100	if (sglq_entry->virt == NULL) {
4101	kfree(objp: sglq_entry);
4102	lpfc_printf_log(phba, KERN_ERR,
4103	LOG_TRACE_EVENT,
4104	"2563 Failure to allocate an "
4105	"ELS mbuf:%d\n", i);
4106	rc = -ENOMEM;
4107	goto out_free_mem;
4108	}
4109	sglq_entry->sgl = sglq_entry->virt;
4110	memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4111	sglq_entry->state = SGL_FREED;
4112	list_add_tail(new: &sglq_entry->list, head: &els_sgl_list);
4113	}
4114	spin_lock_irq(lock: &phba->sli4_hba.sgl_list_lock);
4115	list_splice_init(list: &els_sgl_list,
4116	head: &phba->sli4_hba.lpfc_els_sgl_list);
4117	spin_unlock_irq(lock: &phba->sli4_hba.sgl_list_lock);
4118	} else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
4119	/* els xri-sgl shrinked */
4120	xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
4121	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4122	"3158 ELS xri-sgl count decreased from "
4123	"%d to %d\n", phba->sli4_hba.els_xri_cnt,
4124	els_xri_cnt);
4125	spin_lock_irq(lock: &phba->sli4_hba.sgl_list_lock);
4126	list_splice_init(list: &phba->sli4_hba.lpfc_els_sgl_list,
4127	head: &els_sgl_list);
4128	/* release extra els sgls from list */
4129	for (i = 0; i < xri_cnt; i++) {
4130	list_remove_head(&els_sgl_list,
4131	sglq_entry, struct lpfc_sglq, list);
4132	if (sglq_entry) {
4133	__lpfc_mbuf_free(phba, sglq_entry->virt,
4134	sglq_entry->phys);
4135	kfree(objp: sglq_entry);
4136	}
4137	}
4138	list_splice_init(list: &els_sgl_list,
4139	head: &phba->sli4_hba.lpfc_els_sgl_list);
4140	spin_unlock_irq(lock: &phba->sli4_hba.sgl_list_lock);
4141	} else
4142	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4143	"3163 ELS xri-sgl count unchanged: %d\n",
4144	els_xri_cnt);
4145	phba->sli4_hba.els_xri_cnt = els_xri_cnt;
4146
4147	/* update xris to els sgls on the list */
4148	sglq_entry = NULL;
4149	sglq_entry_next = NULL;
4150	list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4151	&phba->sli4_hba.lpfc_els_sgl_list, list) {
4152	lxri = lpfc_sli4_next_xritag(phba);
4153	if (lxri == NO_XRI) {
4154	lpfc_printf_log(phba, KERN_ERR,
4155	LOG_TRACE_EVENT,
4156	"2400 Failed to allocate xri for "
4157	"ELS sgl\n");
4158	rc = -ENOMEM;
4159	goto out_free_mem;
4160	}
4161	sglq_entry->sli4_lxritag = lxri;
4162	sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4163	}
4164	return 0;
4165
4166	out_free_mem:
4167	lpfc_free_els_sgl_list(phba);
4168	return rc;
4169	}
4170
4171	/**
4172	* lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4173	* @phba: pointer to lpfc hba data structure.
4174	*
4175	* This routine first calculates the sizes of the current els and allocated
4176	* scsi sgl lists, and then goes through all sgls to updates the physical
4177	* XRIs assigned due to port function reset. During port initialization, the
4178	* current els and allocated scsi sgl lists are 0s.
4179	*
4180	* Return codes
4181	* 0 - successful (for now, it always returns 0)
4182	**/
4183	int
4184	lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4185	{
4186	struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4187	uint16_t i, lxri, xri_cnt, els_xri_cnt;
4188	uint16_t nvmet_xri_cnt;
4189	LIST_HEAD(nvmet_sgl_list);
4190	int rc;
4191
4192	/*
4193	* update on pci function's nvmet xri-sgl list
4194	*/
4195	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4196
4197	/* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4198	nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4199	if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4200	/* els xri-sgl expanded */
4201	xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4202	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4203	"6302 NVMET xri-sgl cnt grew from %d to %d\n",
4204	phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4205	/* allocate the additional nvmet sgls */
4206	for (i = 0; i < xri_cnt; i++) {
4207	sglq_entry = kzalloc(size: sizeof(struct lpfc_sglq),
4208	GFP_KERNEL);
4209	if (sglq_entry == NULL) {
4210	lpfc_printf_log(phba, KERN_ERR,
4211	LOG_TRACE_EVENT,
4212	"6303 Failure to allocate an "
4213	"NVMET sgl entry:%d\n", i);
4214	rc = -ENOMEM;
4215	goto out_free_mem;
4216	}
4217	sglq_entry->buff_type = NVMET_BUFF_TYPE;
4218	sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, flags: 0,
4219	handle: &sglq_entry->phys);
4220	if (sglq_entry->virt == NULL) {
4221	kfree(objp: sglq_entry);
4222	lpfc_printf_log(phba, KERN_ERR,
4223	LOG_TRACE_EVENT,
4224	"6304 Failure to allocate an "
4225	"NVMET buf:%d\n", i);
4226	rc = -ENOMEM;
4227	goto out_free_mem;
4228	}
4229	sglq_entry->sgl = sglq_entry->virt;
4230	memset(sglq_entry->sgl, 0,
4231	phba->cfg_sg_dma_buf_size);
4232	sglq_entry->state = SGL_FREED;
4233	list_add_tail(new: &sglq_entry->list, head: &nvmet_sgl_list);
4234	}
4235	spin_lock_irq(lock: &phba->hbalock);
4236	spin_lock(lock: &phba->sli4_hba.sgl_list_lock);
4237	list_splice_init(list: &nvmet_sgl_list,
4238	head: &phba->sli4_hba.lpfc_nvmet_sgl_list);
4239	spin_unlock(lock: &phba->sli4_hba.sgl_list_lock);
4240	spin_unlock_irq(lock: &phba->hbalock);
4241	} else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4242	/* nvmet xri-sgl shrunk */
4243	xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4244	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4245	"6305 NVMET xri-sgl count decreased from "
4246	"%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4247	nvmet_xri_cnt);
4248	spin_lock_irq(lock: &phba->hbalock);
4249	spin_lock(lock: &phba->sli4_hba.sgl_list_lock);
4250	list_splice_init(list: &phba->sli4_hba.lpfc_nvmet_sgl_list,
4251	head: &nvmet_sgl_list);
4252	/* release extra nvmet sgls from list */
4253	for (i = 0; i < xri_cnt; i++) {
4254	list_remove_head(&nvmet_sgl_list,
4255	sglq_entry, struct lpfc_sglq, list);
4256	if (sglq_entry) {
4257	lpfc_nvmet_buf_free(phba, virtp: sglq_entry->virt,
4258	dma: sglq_entry->phys);
4259	kfree(objp: sglq_entry);
4260	}
4261	}
4262	list_splice_init(list: &nvmet_sgl_list,
4263	head: &phba->sli4_hba.lpfc_nvmet_sgl_list);
4264	spin_unlock(lock: &phba->sli4_hba.sgl_list_lock);
4265	spin_unlock_irq(lock: &phba->hbalock);
4266	} else
4267	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4268	"6306 NVMET xri-sgl count unchanged: %d\n",
4269	nvmet_xri_cnt);
4270	phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4271
4272	/* update xris to nvmet sgls on the list */
4273	sglq_entry = NULL;
4274	sglq_entry_next = NULL;
4275	list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4276	&phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4277	lxri = lpfc_sli4_next_xritag(phba);
4278	if (lxri == NO_XRI) {
4279	lpfc_printf_log(phba, KERN_ERR,
4280	LOG_TRACE_EVENT,
4281	"6307 Failed to allocate xri for "
4282	"NVMET sgl\n");
4283	rc = -ENOMEM;
4284	goto out_free_mem;
4285	}
4286	sglq_entry->sli4_lxritag = lxri;
4287	sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4288	}
4289	return 0;
4290
4291	out_free_mem:
4292	lpfc_free_nvmet_sgl_list(phba);
4293	return rc;
4294	}
4295
4296	int
4297	lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4298	{
4299	LIST_HEAD(blist);
4300	struct lpfc_sli4_hdw_queue *qp;
4301	struct lpfc_io_buf *lpfc_cmd;
4302	struct lpfc_io_buf *iobufp, *prev_iobufp;
4303	int idx, cnt, xri, inserted;
4304
4305	cnt = 0;
4306	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4307	qp = &phba->sli4_hba.hdwq[idx];
4308	spin_lock_irq(lock: &qp->io_buf_list_get_lock);
4309	spin_lock(lock: &qp->io_buf_list_put_lock);
4310
4311	/* Take everything off the get and put lists */
4312	list_splice_init(list: &qp->lpfc_io_buf_list_get, head: &blist);
4313	list_splice(list: &qp->lpfc_io_buf_list_put, head: &blist);
4314	INIT_LIST_HEAD(list: &qp->lpfc_io_buf_list_get);
4315	INIT_LIST_HEAD(list: &qp->lpfc_io_buf_list_put);
4316	cnt += qp->get_io_bufs + qp->put_io_bufs;
4317	qp->get_io_bufs = 0;
4318	qp->put_io_bufs = 0;
4319	qp->total_io_bufs = 0;
4320	spin_unlock(lock: &qp->io_buf_list_put_lock);
4321	spin_unlock_irq(lock: &qp->io_buf_list_get_lock);
4322	}
4323
4324	/*
4325	* Take IO buffers off blist and put on cbuf sorted by XRI.
4326	* This is because POST_SGL takes a sequential range of XRIs
4327	* to post to the firmware.
4328	*/
4329	for (idx = 0; idx < cnt; idx++) {
4330	list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4331	if (!lpfc_cmd)
4332	return cnt;
4333	if (idx == 0) {
4334	list_add_tail(new: &lpfc_cmd->list, head: cbuf);
4335	continue;
4336	}
4337	xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4338	inserted = 0;
4339	prev_iobufp = NULL;
4340	list_for_each_entry(iobufp, cbuf, list) {
4341	if (xri < iobufp->cur_iocbq.sli4_xritag) {
4342	if (prev_iobufp)
4343	list_add(new: &lpfc_cmd->list,
4344	head: &prev_iobufp->list);
4345	else
4346	list_add(new: &lpfc_cmd->list, head: cbuf);
4347	inserted = 1;
4348	break;
4349	}
4350	prev_iobufp = iobufp;
4351	}
4352	if (!inserted)
4353	list_add_tail(new: &lpfc_cmd->list, head: cbuf);
4354	}
4355	return cnt;
4356	}
4357
4358	int
4359	lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4360	{
4361	struct lpfc_sli4_hdw_queue *qp;
4362	struct lpfc_io_buf *lpfc_cmd;
4363	int idx, cnt;
4364	unsigned long iflags;
4365
4366	qp = phba->sli4_hba.hdwq;
4367	cnt = 0;
4368	while (!list_empty(head: cbuf)) {
4369	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4370	list_remove_head(cbuf, lpfc_cmd,
4371	struct lpfc_io_buf, list);
4372	if (!lpfc_cmd)
4373	return cnt;
4374	cnt++;
4375	qp = &phba->sli4_hba.hdwq[idx];
4376	lpfc_cmd->hdwq_no = idx;
4377	lpfc_cmd->hdwq = qp;
4378	lpfc_cmd->cur_iocbq.cmd_cmpl = NULL;
4379	spin_lock_irqsave(&qp->io_buf_list_put_lock, iflags);
4380	list_add_tail(new: &lpfc_cmd->list,
4381	head: &qp->lpfc_io_buf_list_put);
4382	qp->put_io_bufs++;
4383	qp->total_io_bufs++;
4384	spin_unlock_irqrestore(lock: &qp->io_buf_list_put_lock,
4385	flags: iflags);
4386	}
4387	}
4388	return cnt;
4389	}
4390
4391	/**
4392	* lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4393	* @phba: pointer to lpfc hba data structure.
4394	*
4395	* This routine first calculates the sizes of the current els and allocated
4396	* scsi sgl lists, and then goes through all sgls to updates the physical
4397	* XRIs assigned due to port function reset. During port initialization, the
4398	* current els and allocated scsi sgl lists are 0s.
4399	*
4400	* Return codes
4401	* 0 - successful (for now, it always returns 0)
4402	**/
4403	int
4404	lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4405	{
4406	struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4407	uint16_t i, lxri, els_xri_cnt;
4408	uint16_t io_xri_cnt, io_xri_max;
4409	LIST_HEAD(io_sgl_list);
4410	int rc, cnt;
4411
4412	/*
4413	* update on pci function's allocated nvme xri-sgl list
4414	*/
4415
4416	/* maximum number of xris available for nvme buffers */
4417	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4418	io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4419	phba->sli4_hba.io_xri_max = io_xri_max;
4420
4421	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4422	"6074 Current allocated XRI sgl count:%d, "
4423	"maximum XRI count:%d els_xri_cnt:%d\n\n",
4424	phba->sli4_hba.io_xri_cnt,
4425	phba->sli4_hba.io_xri_max,
4426	els_xri_cnt);
4427
4428	cnt = lpfc_io_buf_flush(phba, cbuf: &io_sgl_list);
4429
4430	if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4431	/* max nvme xri shrunk below the allocated nvme buffers */
4432	io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4433	phba->sli4_hba.io_xri_max;
4434	/* release the extra allocated nvme buffers */
4435	for (i = 0; i < io_xri_cnt; i++) {
4436	list_remove_head(&io_sgl_list, lpfc_ncmd,
4437	struct lpfc_io_buf, list);
4438	if (lpfc_ncmd) {
4439	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool,
4440	vaddr: lpfc_ncmd->data,
4441	addr: lpfc_ncmd->dma_handle);
4442	kfree(objp: lpfc_ncmd);
4443	}
4444	}
4445	phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4446	}
4447
4448	/* update xris associated to remaining allocated nvme buffers */
4449	lpfc_ncmd = NULL;
4450	lpfc_ncmd_next = NULL;
4451	phba->sli4_hba.io_xri_cnt = cnt;
4452	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4453	&io_sgl_list, list) {
4454	lxri = lpfc_sli4_next_xritag(phba);
4455	if (lxri == NO_XRI) {
4456	lpfc_printf_log(phba, KERN_ERR,
4457	LOG_TRACE_EVENT,
4458	"6075 Failed to allocate xri for "
4459	"nvme buffer\n");
4460	rc = -ENOMEM;
4461	goto out_free_mem;
4462	}
4463	lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4464	lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4465	}
4466	cnt = lpfc_io_buf_replenish(phba, cbuf: &io_sgl_list);
4467	return 0;
4468
4469	out_free_mem:
4470	lpfc_io_free(phba);
4471	return rc;
4472	}
4473
4474	/**
4475	* lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4476	* @phba: Pointer to lpfc hba data structure.
4477	* @num_to_alloc: The requested number of buffers to allocate.
4478	*
4479	* This routine allocates nvme buffers for device with SLI-4 interface spec,
4480	* the nvme buffer contains all the necessary information needed to initiate
4481	* an I/O. After allocating up to @num_to_allocate IO buffers and put
4482	* them on a list, it post them to the port by using SGL block post.
4483	*
4484	* Return codes:
4485	* int - number of IO buffers that were allocated and posted.
4486	* 0 = failure, less than num_to_alloc is a partial failure.
4487	**/
4488	int
4489	lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4490	{
4491	struct lpfc_io_buf *lpfc_ncmd;
4492	struct lpfc_iocbq *pwqeq;
4493	uint16_t iotag, lxri = 0;
4494	int bcnt, num_posted;
4495	LIST_HEAD(prep_nblist);
4496	LIST_HEAD(post_nblist);
4497	LIST_HEAD(nvme_nblist);
4498
4499	phba->sli4_hba.io_xri_cnt = 0;
4500	for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4501	lpfc_ncmd = kzalloc(size: sizeof(*lpfc_ncmd), GFP_KERNEL);
4502	if (!lpfc_ncmd)
4503	break;
4504	/*
4505	* Get memory from the pci pool to map the virt space to
4506	* pci bus space for an I/O. The DMA buffer includes the
4507	* number of SGE's necessary to support the sg_tablesize.
4508	*/
4509	lpfc_ncmd->data = dma_pool_zalloc(pool: phba->lpfc_sg_dma_buf_pool,
4510	GFP_KERNEL,
4511	handle: &lpfc_ncmd->dma_handle);
4512	if (!lpfc_ncmd->data) {
4513	kfree(objp: lpfc_ncmd);
4514	break;
4515	}
4516
4517	if (phba->cfg_xpsgl && !phba->nvmet_support) {
4518	INIT_LIST_HEAD(list: &lpfc_ncmd->dma_sgl_xtra_list);
4519	} else {
4520	/*
4521	* 4K Page alignment is CRITICAL to BlockGuard, double
4522	* check to be sure.
4523	*/
4524	if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4525	(((unsigned long)(lpfc_ncmd->data) &
4526	(unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4527	lpfc_printf_log(phba, KERN_ERR,
4528	LOG_TRACE_EVENT,
4529	"3369 Memory alignment err: "
4530	"addr=%lx\n",
4531	(unsigned long)lpfc_ncmd->data);
4532	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool,
4533	vaddr: lpfc_ncmd->data,
4534	addr: lpfc_ncmd->dma_handle);
4535	kfree(objp: lpfc_ncmd);
4536	break;
4537	}
4538	}
4539
4540	INIT_LIST_HEAD(list: &lpfc_ncmd->dma_cmd_rsp_list);
4541
4542	lxri = lpfc_sli4_next_xritag(phba);
4543	if (lxri == NO_XRI) {
4544	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool,
4545	vaddr: lpfc_ncmd->data, addr: lpfc_ncmd->dma_handle);
4546	kfree(objp: lpfc_ncmd);
4547	break;
4548	}
4549	pwqeq = &lpfc_ncmd->cur_iocbq;
4550
4551	/* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4552	iotag = lpfc_sli_next_iotag(phba, pwqeq);
4553	if (iotag == 0) {
4554	dma_pool_free(pool: phba->lpfc_sg_dma_buf_pool,
4555	vaddr: lpfc_ncmd->data, addr: lpfc_ncmd->dma_handle);
4556	kfree(objp: lpfc_ncmd);
4557	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4558	"6121 Failed to allocate IOTAG for"
4559	" XRI:0x%x\n", lxri);
4560	lpfc_sli4_free_xri(phba, lxri);
4561	break;
4562	}
4563	pwqeq->sli4_lxritag = lxri;
4564	pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4565
4566	/* Initialize local short-hand pointers. */
4567	lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4568	lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4569	lpfc_ncmd->cur_iocbq.io_buf = lpfc_ncmd;
4570	spin_lock_init(&lpfc_ncmd->buf_lock);
4571
4572	/* add the nvme buffer to a post list */
4573	list_add_tail(new: &lpfc_ncmd->list, head: &post_nblist);
4574	phba->sli4_hba.io_xri_cnt++;
4575	}
4576	lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4577	"6114 Allocate %d out of %d requested new NVME "
4578	"buffers of size x%zu bytes\n", bcnt, num_to_alloc,
4579	sizeof(*lpfc_ncmd));
4580
4581
4582	/* post the list of nvme buffer sgls to port if available */
4583	if (!list_empty(head: &post_nblist))
4584	num_posted = lpfc_sli4_post_io_sgl_list(
4585	phba, blist: &post_nblist, xricnt: bcnt);
4586	else
4587	num_posted = 0;
4588
4589	return num_posted;
4590	}
4591
4592	static uint64_t
4593	lpfc_get_wwpn(struct lpfc_hba *phba)
4594	{
4595	uint64_t wwn;
4596	int rc;
4597	LPFC_MBOXQ_t *mboxq;
4598	MAILBOX_t *mb;
4599
4600	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool,
4601	GFP_KERNEL);
4602	if (!mboxq)
4603	return (uint64_t)-1;
4604
4605	/* First get WWN of HBA instance */
4606	lpfc_read_nv(phba, mboxq);
4607	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4608	if (rc != MBX_SUCCESS) {
4609	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4610	"6019 Mailbox failed , mbxCmd x%x "
4611	"READ_NV, mbxStatus x%x\n",
4612	bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4613	bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4614	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
4615	return (uint64_t) -1;
4616	}
4617	mb = &mboxq->u.mb;
4618	memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4619	/* wwn is WWPN of HBA instance */
4620	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
4621	if (phba->sli_rev == LPFC_SLI_REV4)
4622	return be64_to_cpu(wwn);
4623	else
4624	return rol64(word: wwn, shift: 32);
4625	}
4626
4627	static unsigned short lpfc_get_sg_tablesize(struct lpfc_hba *phba)
4628	{
4629	if (phba->sli_rev == LPFC_SLI_REV4)
4630	if (phba->cfg_xpsgl && !phba->nvmet_support)
4631	return LPFC_MAX_SG_TABLESIZE;
4632	else
4633	return phba->cfg_scsi_seg_cnt;
4634	else
4635	return phba->cfg_sg_seg_cnt;
4636	}
4637
4638	/**
4639	* lpfc_vmid_res_alloc - Allocates resources for VMID
4640	* @phba: pointer to lpfc hba data structure.
4641	* @vport: pointer to vport data structure
4642	*
4643	* This routine allocated the resources needed for the VMID.
4644	*
4645	* Return codes
4646	* 0 on Success
4647	* Non-0 on Failure
4648	*/
4649	static int
4650	lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4651	{
4652	/* VMID feature is supported only on SLI4 */
4653	if (phba->sli_rev == LPFC_SLI_REV3) {
4654	phba->cfg_vmid_app_header = 0;
4655	phba->cfg_vmid_priority_tagging = 0;
4656	}
4657
4658	if (lpfc_is_vmid_enabled(phba)) {
4659	vport->vmid =
4660	kcalloc(n: phba->cfg_max_vmid, size: sizeof(struct lpfc_vmid),
4661	GFP_KERNEL);
4662	if (!vport->vmid)
4663	return -ENOMEM;
4664
4665	rwlock_init(&vport->vmid_lock);
4666
4667	/* Set the VMID parameters for the vport */
4668	vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4669	vport->vmid_inactivity_timeout =
4670	phba->cfg_vmid_inactivity_timeout;
4671	vport->max_vmid = phba->cfg_max_vmid;
4672	vport->cur_vmid_cnt = 0;
4673
4674	vport->vmid_priority_range = bitmap_zalloc
4675	(LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4676
4677	if (!vport->vmid_priority_range) {
4678	kfree(objp: vport->vmid);
4679	return -ENOMEM;
4680	}
4681
4682	hash_init(vport->hash_table);
4683	}
4684	return 0;
4685	}
4686
4687	/**
4688	* lpfc_create_port - Create an FC port
4689	* @phba: pointer to lpfc hba data structure.
4690	* @instance: a unique integer ID to this FC port.
4691	* @dev: pointer to the device data structure.
4692	*
4693	* This routine creates a FC port for the upper layer protocol. The FC port
4694	* can be created on top of either a physical port or a virtual port provided
4695	* by the HBA. This routine also allocates a SCSI host data structure (shost)
4696	* and associates the FC port created before adding the shost into the SCSI
4697	* layer.
4698	*
4699	* Return codes
4700	* @vport - pointer to the virtual N_Port data structure.
4701	* NULL - port create failed.
4702	**/
4703	struct lpfc_vport *
4704	lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4705	{
4706	struct lpfc_vport *vport;
4707	struct Scsi_Host *shost = NULL;
4708	struct scsi_host_template *template;
4709	int error = 0;
4710	int i;
4711	uint64_t wwn;
4712	bool use_no_reset_hba = false;
4713	int rc;
4714
4715	if (lpfc_no_hba_reset_cnt) {
4716	if (phba->sli_rev < LPFC_SLI_REV4 &&
4717	dev == &phba->pcidev->dev) {
4718	/* Reset the port first */
4719	lpfc_sli_brdrestart(phba);
4720	rc = lpfc_sli_chipset_init(phba);
4721	if (rc)
4722	return NULL;
4723	}
4724	wwn = lpfc_get_wwpn(phba);
4725	}
4726
4727	for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4728	if (wwn == lpfc_no_hba_reset[i]) {
4729	lpfc_printf_log(phba, KERN_ERR,
4730	LOG_TRACE_EVENT,
4731	"6020 Setting use_no_reset port=%llx\n",
4732	wwn);
4733	use_no_reset_hba = true;
4734	break;
4735	}
4736	}
4737
4738	/* Seed template for SCSI host registration */
4739	if (dev == &phba->pcidev->dev) {
4740	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4741	/* Seed physical port template */
4742	template = &lpfc_template;
4743
4744	if (use_no_reset_hba)
4745	/* template is for a no reset SCSI Host */
4746	template->eh_host_reset_handler = NULL;
4747
4748	/* Seed updated value of sg_tablesize */
4749	template->sg_tablesize = lpfc_get_sg_tablesize(phba);
4750	} else {
4751	/* NVMET is for physical port only */
4752	template = &lpfc_template_nvme;
4753	}
4754	} else {
4755	/* Seed vport template */
4756	template = &lpfc_vport_template;
4757
4758	/* Seed updated value of sg_tablesize */
4759	template->sg_tablesize = lpfc_get_sg_tablesize(phba);
4760	}
4761
4762	shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4763	if (!shost)
4764	goto out;
4765
4766	vport = (struct lpfc_vport *) shost->hostdata;
4767	vport->phba = phba;
4768	set_bit(nr: FC_LOADING, addr: &vport->load_flag);
4769	set_bit(nr: FC_VPORT_NEEDS_REG_VPI, addr: &vport->fc_flag);
4770	vport->fc_rscn_flush = 0;
4771	atomic_set(v: &vport->fc_plogi_cnt, i: 0);
4772	atomic_set(v: &vport->fc_adisc_cnt, i: 0);
4773	atomic_set(v: &vport->fc_reglogin_cnt, i: 0);
4774	atomic_set(v: &vport->fc_prli_cnt, i: 0);
4775	atomic_set(v: &vport->fc_unmap_cnt, i: 0);
4776	atomic_set(v: &vport->fc_map_cnt, i: 0);
4777	atomic_set(v: &vport->fc_npr_cnt, i: 0);
4778	atomic_set(v: &vport->fc_unused_cnt, i: 0);
4779	lpfc_get_vport_cfgparam(vport);
4780
4781	/* Adjust value in vport */
4782	vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4783
4784	shost->unique_id = instance;
4785	shost->max_id = LPFC_MAX_TARGET;
4786	shost->max_lun = vport->cfg_max_luns;
4787	shost->this_id = -1;
4788	shost->max_cmd_len = 16;
4789
4790	if (phba->sli_rev == LPFC_SLI_REV4) {
4791	if (!phba->cfg_fcp_mq_threshold ||
4792	phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4793	phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4794
4795	shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4796	phba->cfg_fcp_mq_threshold);
4797
4798	shost->dma_boundary =
4799	phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4800	} else
4801	/* SLI-3 has a limited number of hardware queues (3),
4802	* thus there is only one for FCP processing.
4803	*/
4804	shost->nr_hw_queues = 1;
4805
4806	/*
4807	* Set initial can_queue value since 0 is no longer supported and
4808	* scsi_add_host will fail. This will be adjusted later based on the
4809	* max xri value determined in hba setup.
4810	*/
4811	shost->can_queue = phba->cfg_hba_queue_depth - 10;
4812	if (dev != &phba->pcidev->dev) {
4813	shost->transportt = lpfc_vport_transport_template;
4814	vport->port_type = LPFC_NPIV_PORT;
4815	} else {
4816	shost->transportt = lpfc_transport_template;
4817	vport->port_type = LPFC_PHYSICAL_PORT;
4818	}
4819
4820	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4821	"9081 CreatePort TMPLATE type %x TBLsize %d "
4822	"SEGcnt %d/%d\n",
4823	vport->port_type, shost->sg_tablesize,
4824	phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4825
4826	/* Allocate the resources for VMID */
4827	rc = lpfc_vmid_res_alloc(phba, vport);
4828
4829	if (rc)
4830	goto out_put_shost;
4831
4832	/* Initialize all internally managed lists. */
4833	INIT_LIST_HEAD(list: &vport->fc_nodes);
4834	spin_lock_init(&vport->fc_nodes_list_lock);
4835	INIT_LIST_HEAD(list: &vport->rcv_buffer_list);
4836	spin_lock_init(&vport->work_port_lock);
4837
4838	timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4839
4840	timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4841
4842	timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4843
4844	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4845	lpfc_setup_bg(phba, shost);
4846
4847	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4848	if (error)
4849	goto out_free_vmid;
4850
4851	spin_lock_irq(lock: &phba->port_list_lock);
4852	list_add_tail(new: &vport->listentry, head: &phba->port_list);
4853	spin_unlock_irq(lock: &phba->port_list_lock);
4854	return vport;
4855
4856	out_free_vmid:
4857	kfree(objp: vport->vmid);
4858	bitmap_free(bitmap: vport->vmid_priority_range);
4859	out_put_shost:
4860	scsi_host_put(t: shost);
4861	out:
4862	return NULL;
4863	}
4864
4865	/**
4866	* destroy_port - destroy an FC port
4867	* @vport: pointer to an lpfc virtual N_Port data structure.
4868	*
4869	* This routine destroys a FC port from the upper layer protocol. All the
4870	* resources associated with the port are released.
4871	**/
4872	void
4873	destroy_port(struct lpfc_vport *vport)
4874	{
4875	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4876	struct lpfc_hba *phba = vport->phba;
4877
4878	lpfc_debugfs_terminate(vport);
4879	fc_remove_host(shost);
4880	scsi_remove_host(shost);
4881
4882	spin_lock_irq(lock: &phba->port_list_lock);
4883	list_del_init(entry: &vport->listentry);
4884	spin_unlock_irq(lock: &phba->port_list_lock);
4885
4886	lpfc_cleanup(vport);
4887	return;
4888	}
4889
4890	/**
4891	* lpfc_get_instance - Get a unique integer ID
4892	*
4893	* This routine allocates a unique integer ID from lpfc_hba_index pool. It
4894	* uses the kernel idr facility to perform the task.
4895	*
4896	* Return codes:
4897	* instance - a unique integer ID allocated as the new instance.
4898	* -1 - lpfc get instance failed.
4899	**/
4900	int
4901	lpfc_get_instance(void)
4902	{
4903	int ret;
4904
4905	ret = idr_alloc(&lpfc_hba_index, NULL, start: 0, end: 0, GFP_KERNEL);
4906	return ret < 0 ? -1 : ret;
4907	}
4908
4909	/**
4910	* lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4911	* @shost: pointer to SCSI host data structure.
4912	* @time: elapsed time of the scan in jiffies.
4913	*
4914	* This routine is called by the SCSI layer with a SCSI host to determine
4915	* whether the scan host is finished.
4916	*
4917	* Note: there is no scan_start function as adapter initialization will have
4918	* asynchronously kicked off the link initialization.
4919	*
4920	* Return codes
4921	* 0 - SCSI host scan is not over yet.
4922	* 1 - SCSI host scan is over.
4923	**/
4924	int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4925	{
4926	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4927	struct lpfc_hba *phba = vport->phba;
4928	int stat = 0;
4929
4930	spin_lock_irq(lock: shost->host_lock);
4931
4932	if (test_bit(FC_UNLOADING, &vport->load_flag)) {
4933	stat = 1;
4934	goto finished;
4935	}
4936	if (time >= msecs_to_jiffies(m: 30 * 1000)) {
4937	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4938	"0461 Scanning longer than 30 "
4939	"seconds. Continuing initialization\n");
4940	stat = 1;
4941	goto finished;
4942	}
4943	if (time >= msecs_to_jiffies(m: 15 * 1000) &&
4944	phba->link_state <= LPFC_LINK_DOWN) {
4945	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4946	"0465 Link down longer than 15 "
4947	"seconds. Continuing initialization\n");
4948	stat = 1;
4949	goto finished;
4950	}
4951
4952	if (vport->port_state != LPFC_VPORT_READY)
4953	goto finished;
4954	if (vport->num_disc_nodes || vport->fc_prli_sent)
4955	goto finished;
4956	if (!atomic_read(v: &vport->fc_map_cnt) &&
4957	time < msecs_to_jiffies(m: 2 * 1000))
4958	goto finished;
4959	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4960	goto finished;
4961
4962	stat = 1;
4963
4964	finished:
4965	spin_unlock_irq(lock: shost->host_lock);
4966	return stat;
4967	}
4968
4969	static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4970	{
4971	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4972	struct lpfc_hba *phba = vport->phba;
4973
4974	fc_host_supported_speeds(shost) = 0;
4975	/*
4976	* Avoid reporting supported link speed for FCoE as it can't be
4977	* controlled via FCoE.
4978	*/
4979	if (phba->hba_flag & HBA_FCOE_MODE)
4980	return;
4981
4982	if (phba->lmt & LMT_256Gb)
4983	fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4984	if (phba->lmt & LMT_128Gb)
4985	fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4986	if (phba->lmt & LMT_64Gb)
4987	fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4988	if (phba->lmt & LMT_32Gb)
4989	fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4990	if (phba->lmt & LMT_16Gb)
4991	fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4992	if (phba->lmt & LMT_10Gb)
4993	fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4994	if (phba->lmt & LMT_8Gb)
4995	fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4996	if (phba->lmt & LMT_4Gb)
4997	fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4998	if (phba->lmt & LMT_2Gb)
4999	fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
5000	if (phba->lmt & LMT_1Gb)
5001	fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
5002	}
5003
5004	/**
5005	* lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
5006	* @shost: pointer to SCSI host data structure.
5007	*
5008	* This routine initializes a given SCSI host attributes on a FC port. The
5009	* SCSI host can be either on top of a physical port or a virtual port.
5010	**/
5011	void lpfc_host_attrib_init(struct Scsi_Host *shost)
5012	{
5013	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5014	struct lpfc_hba *phba = vport->phba;
5015	/*
5016	* Set fixed host attributes. Must done after lpfc_sli_hba_setup().
5017	*/
5018
5019	fc_host_node_name(shost) = wwn_to_u64(wwn: vport->fc_nodename.u.wwn);
5020	fc_host_port_name(shost) = wwn_to_u64(wwn: vport->fc_portname.u.wwn);
5021	fc_host_supported_classes(shost) = FC_COS_CLASS3;
5022
5023	memset(fc_host_supported_fc4s(shost), 0,
5024	sizeof(fc_host_supported_fc4s(shost)));
5025	fc_host_supported_fc4s(shost)[2] = 1;
5026	fc_host_supported_fc4s(shost)[7] = 1;
5027
5028	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
5029	sizeof fc_host_symbolic_name(shost));
5030
5031	lpfc_host_supported_speeds_set(shost);
5032
5033	fc_host_maxframe_size(shost) =
5034	(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
5035	(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
5036
5037	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
5038
5039	/* This value is also unchanging */
5040	memset(fc_host_active_fc4s(shost), 0,
5041	sizeof(fc_host_active_fc4s(shost)));
5042	fc_host_active_fc4s(shost)[2] = 1;
5043	fc_host_active_fc4s(shost)[7] = 1;
5044
5045	fc_host_max_npiv_vports(shost) = phba->max_vpi;
5046	clear_bit(nr: FC_LOADING, addr: &vport->load_flag);
5047	}
5048
5049	/**
5050	* lpfc_stop_port_s3 - Stop SLI3 device port
5051	* @phba: pointer to lpfc hba data structure.
5052	*
5053	* This routine is invoked to stop an SLI3 device port, it stops the device
5054	* from generating interrupts and stops the device driver's timers for the
5055	* device.
5056	**/
5057	static void
5058	lpfc_stop_port_s3(struct lpfc_hba *phba)
5059	{
5060	/* Clear all interrupt enable conditions */
5061	writel(val: 0, addr: phba->HCregaddr);
5062	readl(addr: phba->HCregaddr); /* flush */
5063	/* Clear all pending interrupts */
5064	writel(val: 0xffffffff, addr: phba->HAregaddr);
5065	readl(addr: phba->HAregaddr); /* flush */
5066
5067	/* Reset some HBA SLI setup states */
5068	lpfc_stop_hba_timers(phba);
5069	phba->pport->work_port_events = 0;
5070	}
5071
5072	/**
5073	* lpfc_stop_port_s4 - Stop SLI4 device port
5074	* @phba: pointer to lpfc hba data structure.
5075	*
5076	* This routine is invoked to stop an SLI4 device port, it stops the device
5077	* from generating interrupts and stops the device driver's timers for the
5078	* device.
5079	**/
5080	static void
5081	lpfc_stop_port_s4(struct lpfc_hba *phba)
5082	{
5083	/* Reset some HBA SLI4 setup states */
5084	lpfc_stop_hba_timers(phba);
5085	if (phba->pport)
5086	phba->pport->work_port_events = 0;
5087	phba->sli4_hba.intr_enable = 0;
5088	}
5089
5090	/**
5091	* lpfc_stop_port - Wrapper function for stopping hba port
5092	* @phba: Pointer to HBA context object.
5093	*
5094	* This routine wraps the actual SLI3 or SLI4 hba stop port routine from
5095	* the API jump table function pointer from the lpfc_hba struct.
5096	**/
5097	void
5098	lpfc_stop_port(struct lpfc_hba *phba)
5099	{
5100	phba->lpfc_stop_port(phba);
5101
5102	if (phba->wq)
5103	flush_workqueue(phba->wq);
5104	}
5105
5106	/**
5107	* lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
5108	* @phba: Pointer to hba for which this call is being executed.
5109	*
5110	* This routine starts the timer waiting for the FCF rediscovery to complete.
5111	**/
5112	void
5113	lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
5114	{
5115	unsigned long fcf_redisc_wait_tmo =
5116	(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
5117	/* Start fcf rediscovery wait period timer */
5118	mod_timer(timer: &phba->fcf.redisc_wait, expires: fcf_redisc_wait_tmo);
5119	spin_lock_irq(lock: &phba->hbalock);
5120	/* Allow action to new fcf asynchronous event */
5121	phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
5122	/* Mark the FCF rediscovery pending state */
5123	phba->fcf.fcf_flag |= FCF_REDISC_PEND;
5124	spin_unlock_irq(lock: &phba->hbalock);
5125	}
5126
5127	/**
5128	* lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
5129	* @t: Timer context used to obtain the pointer to lpfc hba data structure.
5130	*
5131	* This routine is invoked when waiting for FCF table rediscover has been
5132	* timed out. If new FCF record(s) has (have) been discovered during the
5133	* wait period, a new FCF event shall be added to the FCOE async event
5134	* list, and then worker thread shall be waked up for processing from the
5135	* worker thread context.
5136	**/
5137	static void
5138	lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
5139	{
5140	struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
5141
5142	/* Don't send FCF rediscovery event if timer cancelled */
5143	spin_lock_irq(lock: &phba->hbalock);
5144	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
5145	spin_unlock_irq(lock: &phba->hbalock);
5146	return;
5147	}
5148	/* Clear FCF rediscovery timer pending flag */
5149	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
5150	/* FCF rediscovery event to worker thread */
5151	phba->fcf.fcf_flag |= FCF_REDISC_EVT;
5152	spin_unlock_irq(lock: &phba->hbalock);
5153	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
5154	"2776 FCF rediscover quiescent timer expired\n");
5155	/* wake up worker thread */
5156	lpfc_worker_wake_up(phba);
5157	}
5158
5159	/**
5160	* lpfc_vmid_poll - VMID timeout detection
5161	* @t: Timer context used to obtain the pointer to lpfc hba data structure.
5162	*
5163	* This routine is invoked when there is no I/O on by a VM for the specified
5164	* amount of time. When this situation is detected, the VMID has to be
5165	* deregistered from the switch and all the local resources freed. The VMID
5166	* will be reassigned to the VM once the I/O begins.
5167	**/
5168	static void
5169	lpfc_vmid_poll(struct timer_list *t)
5170	{
5171	struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5172	u32 wake_up = 0;
5173
5174	/* check if there is a need to issue QFPA */
5175	if (phba->pport->vmid_priority_tagging) {
5176	wake_up = 1;
5177	phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5178	}
5179
5180	/* Is the vmid inactivity timer enabled */
5181	if (phba->pport->vmid_inactivity_timeout ||
5182	test_bit(FC_DEREGISTER_ALL_APP_ID, &phba->pport->load_flag)) {
5183	wake_up = 1;
5184	phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5185	}
5186
5187	if (wake_up)
5188	lpfc_worker_wake_up(phba);
5189
5190	/* restart the timer for the next iteration */
5191	mod_timer(timer: &phba->inactive_vmid_poll, expires: jiffies + msecs_to_jiffies(m: 1000 *
5192	LPFC_VMID_TIMER));
5193	}
5194
5195	/**
5196	* lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5197	* @phba: pointer to lpfc hba data structure.
5198	* @acqe_link: pointer to the async link completion queue entry.
5199	*
5200	* This routine is to parse the SLI4 link-attention link fault code.
5201	**/
5202	static void
5203	lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5204	struct lpfc_acqe_link *acqe_link)
5205	{
5206	switch (bf_get(lpfc_acqe_fc_la_att_type, acqe_link)) {
5207	case LPFC_FC_LA_TYPE_LINK_DOWN:
5208	case LPFC_FC_LA_TYPE_TRUNKING_EVENT:
5209	case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
5210	case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
5211	break;
5212	default:
5213	switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5214	case LPFC_ASYNC_LINK_FAULT_NONE:
5215	case LPFC_ASYNC_LINK_FAULT_LOCAL:
5216	case LPFC_ASYNC_LINK_FAULT_REMOTE:
5217	case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5218	break;
5219	default:
5220	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5221	"0398 Unknown link fault code: x%x\n",
5222	bf_get(lpfc_acqe_link_fault, acqe_link));
5223	break;
5224	}
5225	break;
5226	}
5227	}
5228
5229	/**
5230	* lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5231	* @phba: pointer to lpfc hba data structure.
5232	* @acqe_link: pointer to the async link completion queue entry.
5233	*
5234	* This routine is to parse the SLI4 link attention type and translate it
5235	* into the base driver's link attention type coding.
5236	*
5237	* Return: Link attention type in terms of base driver's coding.
5238	**/
5239	static uint8_t
5240	lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5241	struct lpfc_acqe_link *acqe_link)
5242	{
5243	uint8_t att_type;
5244
5245	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5246	case LPFC_ASYNC_LINK_STATUS_DOWN:
5247	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5248	att_type = LPFC_ATT_LINK_DOWN;
5249	break;
5250	case LPFC_ASYNC_LINK_STATUS_UP:
5251	/* Ignore physical link up events - wait for logical link up */
5252	att_type = LPFC_ATT_RESERVED;
5253	break;
5254	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5255	att_type = LPFC_ATT_LINK_UP;
5256	break;
5257	default:
5258	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5259	"0399 Invalid link attention type: x%x\n",
5260	bf_get(lpfc_acqe_link_status, acqe_link));
5261	att_type = LPFC_ATT_RESERVED;
5262	break;
5263	}
5264	return att_type;
5265	}
5266
5267	/**
5268	* lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5269	* @phba: pointer to lpfc hba data structure.
5270	*
5271	* This routine is to get an SLI3 FC port's link speed in Mbps.
5272	*
5273	* Return: link speed in terms of Mbps.
5274	**/
5275	uint32_t
5276	lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5277	{
5278	uint32_t link_speed;
5279
5280	if (!lpfc_is_link_up(phba))
5281	return 0;
5282
5283	if (phba->sli_rev <= LPFC_SLI_REV3) {
5284	switch (phba->fc_linkspeed) {
5285	case LPFC_LINK_SPEED_1GHZ:
5286	link_speed = 1000;
5287	break;
5288	case LPFC_LINK_SPEED_2GHZ:
5289	link_speed = 2000;
5290	break;
5291	case LPFC_LINK_SPEED_4GHZ:
5292	link_speed = 4000;
5293	break;
5294	case LPFC_LINK_SPEED_8GHZ:
5295	link_speed = 8000;
5296	break;
5297	case LPFC_LINK_SPEED_10GHZ:
5298	link_speed = 10000;
5299	break;
5300	case LPFC_LINK_SPEED_16GHZ:
5301	link_speed = 16000;
5302	break;
5303	default:
5304	link_speed = 0;
5305	}
5306	} else {
5307	if (phba->sli4_hba.link_state.logical_speed)
5308	link_speed =
5309	phba->sli4_hba.link_state.logical_speed;
5310	else
5311	link_speed = phba->sli4_hba.link_state.speed;
5312	}
5313	return link_speed;
5314	}
5315
5316	/**
5317	* lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5318	* @phba: pointer to lpfc hba data structure.
5319	* @evt_code: asynchronous event code.
5320	* @speed_code: asynchronous event link speed code.
5321	*
5322	* This routine is to parse the giving SLI4 async event link speed code into
5323	* value of Mbps for the link speed.
5324	*
5325	* Return: link speed in terms of Mbps.
5326	**/
5327	static uint32_t
5328	lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5329	uint8_t speed_code)
5330	{
5331	uint32_t port_speed;
5332
5333	switch (evt_code) {
5334	case LPFC_TRAILER_CODE_LINK:
5335	switch (speed_code) {
5336	case LPFC_ASYNC_LINK_SPEED_ZERO:
5337	port_speed = 0;
5338	break;
5339	case LPFC_ASYNC_LINK_SPEED_10MBPS:
5340	port_speed = 10;
5341	break;
5342	case LPFC_ASYNC_LINK_SPEED_100MBPS:
5343	port_speed = 100;
5344	break;
5345	case LPFC_ASYNC_LINK_SPEED_1GBPS:
5346	port_speed = 1000;
5347	break;
5348	case LPFC_ASYNC_LINK_SPEED_10GBPS:
5349	port_speed = 10000;
5350	break;
5351	case LPFC_ASYNC_LINK_SPEED_20GBPS:
5352	port_speed = 20000;
5353	break;
5354	case LPFC_ASYNC_LINK_SPEED_25GBPS:
5355	port_speed = 25000;
5356	break;
5357	case LPFC_ASYNC_LINK_SPEED_40GBPS:
5358	port_speed = 40000;
5359	break;
5360	case LPFC_ASYNC_LINK_SPEED_100GBPS:
5361	port_speed = 100000;
5362	break;
5363	default:
5364	port_speed = 0;
5365	}
5366	break;
5367	case LPFC_TRAILER_CODE_FC:
5368	switch (speed_code) {
5369	case LPFC_FC_LA_SPEED_UNKNOWN:
5370	port_speed = 0;
5371	break;
5372	case LPFC_FC_LA_SPEED_1G:
5373	port_speed = 1000;
5374	break;
5375	case LPFC_FC_LA_SPEED_2G:
5376	port_speed = 2000;
5377	break;
5378	case LPFC_FC_LA_SPEED_4G:
5379	port_speed = 4000;
5380	break;
5381	case LPFC_FC_LA_SPEED_8G:
5382	port_speed = 8000;
5383	break;
5384	case LPFC_FC_LA_SPEED_10G:
5385	port_speed = 10000;
5386	break;
5387	case LPFC_FC_LA_SPEED_16G:
5388	port_speed = 16000;
5389	break;
5390	case LPFC_FC_LA_SPEED_32G:
5391	port_speed = 32000;
5392	break;
5393	case LPFC_FC_LA_SPEED_64G:
5394	port_speed = 64000;
5395	break;
5396	case LPFC_FC_LA_SPEED_128G:
5397	port_speed = 128000;
5398	break;
5399	case LPFC_FC_LA_SPEED_256G:
5400	port_speed = 256000;
5401	break;
5402	default:
5403	port_speed = 0;
5404	}
5405	break;
5406	default:
5407	port_speed = 0;
5408	}
5409	return port_speed;
5410	}
5411
5412	/**
5413	* lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5414	* @phba: pointer to lpfc hba data structure.
5415	* @acqe_link: pointer to the async link completion queue entry.
5416	*
5417	* This routine is to handle the SLI4 asynchronous FCoE link event.
5418	**/
5419	static void
5420	lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5421	struct lpfc_acqe_link *acqe_link)
5422	{
5423	LPFC_MBOXQ_t *pmb;
5424	MAILBOX_t *mb;
5425	struct lpfc_mbx_read_top *la;
5426	uint8_t att_type;
5427	int rc;
5428
5429	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5430	if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5431	return;
5432	phba->fcoe_eventtag = acqe_link->event_tag;
5433	pmb = (LPFC_MBOXQ_t *)mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
5434	if (!pmb) {
5435	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5436	"0395 The mboxq allocation failed\n");
5437	return;
5438	}
5439
5440	rc = lpfc_mbox_rsrc_prep(phba, mbox: pmb);
5441	if (rc) {
5442	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5443	"0396 mailbox allocation failed\n");
5444	goto out_free_pmb;
5445	}
5446
5447	/* Cleanup any outstanding ELS commands */
5448	lpfc_els_flush_all_cmd(phba);
5449
5450	/* Block ELS IOCBs until we have done process link event */
5451	phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5452
5453	/* Update link event statistics */
5454	phba->sli.slistat.link_event++;
5455
5456	/* Create lpfc_handle_latt mailbox command from link ACQE */
5457	lpfc_read_topology(phba, pmb, pmb->ctx_buf);
5458	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5459	pmb->vport = phba->pport;
5460
5461	/* Keep the link status for extra SLI4 state machine reference */
5462	phba->sli4_hba.link_state.speed =
5463	lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5464	bf_get(lpfc_acqe_link_speed, acqe_link));
5465	phba->sli4_hba.link_state.duplex =
5466	bf_get(lpfc_acqe_link_duplex, acqe_link);
5467	phba->sli4_hba.link_state.status =
5468	bf_get(lpfc_acqe_link_status, acqe_link);
5469	phba->sli4_hba.link_state.type =
5470	bf_get(lpfc_acqe_link_type, acqe_link);
5471	phba->sli4_hba.link_state.number =
5472	bf_get(lpfc_acqe_link_number, acqe_link);
5473	phba->sli4_hba.link_state.fault =
5474	bf_get(lpfc_acqe_link_fault, acqe_link);
5475	phba->sli4_hba.link_state.logical_speed =
5476	bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5477
5478	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5479	"2900 Async FC/FCoE Link event - Speed:%dGBit "
5480	"duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5481	"Logical speed:%dMbps Fault:%d\n",
5482	phba->sli4_hba.link_state.speed,
5483	phba->sli4_hba.link_state.topology,
5484	phba->sli4_hba.link_state.status,
5485	phba->sli4_hba.link_state.type,
5486	phba->sli4_hba.link_state.number,
5487	phba->sli4_hba.link_state.logical_speed,
5488	phba->sli4_hba.link_state.fault);
5489	/*
5490	* For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5491	* topology info. Note: Optional for non FC-AL ports.
5492	*/
5493	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5494	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5495	if (rc == MBX_NOT_FINISHED)
5496	goto out_free_pmb;
5497	return;
5498	}
5499	/*
5500	* For FCoE Mode: fill in all the topology information we need and call
5501	* the READ_TOPOLOGY completion routine to continue without actually
5502	* sending the READ_TOPOLOGY mailbox command to the port.
5503	*/
5504	/* Initialize completion status */
5505	mb = &pmb->u.mb;
5506	mb->mbxStatus = MBX_SUCCESS;
5507
5508	/* Parse port fault information field */
5509	lpfc_sli4_parse_latt_fault(phba, acqe_link);
5510
5511	/* Parse and translate link attention fields */
5512	la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5513	la->eventTag = acqe_link->event_tag;
5514	bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5515	bf_set(lpfc_mbx_read_top_link_spd, la,
5516	(bf_get(lpfc_acqe_link_speed, acqe_link)));
5517
5518	/* Fake the following irrelevant fields */
5519	bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5520	bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5521	bf_set(lpfc_mbx_read_top_il, la, 0);
5522	bf_set(lpfc_mbx_read_top_pb, la, 0);
5523	bf_set(lpfc_mbx_read_top_fa, la, 0);
5524	bf_set(lpfc_mbx_read_top_mm, la, 0);
5525
5526	/* Invoke the lpfc_handle_latt mailbox command callback function */
5527	lpfc_mbx_cmpl_read_topology(phba, pmb);
5528
5529	return;
5530
5531	out_free_pmb:
5532	lpfc_mbox_rsrc_cleanup(phba, mbox: pmb, locked: MBOX_THD_UNLOCKED);
5533	}
5534
5535	/**
5536	* lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5537	* topology.
5538	* @phba: pointer to lpfc hba data structure.
5539	* @speed_code: asynchronous event link speed code.
5540	*
5541	* This routine is to parse the giving SLI4 async event link speed code into
5542	* value of Read topology link speed.
5543	*
5544	* Return: link speed in terms of Read topology.
5545	**/
5546	static uint8_t
5547	lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5548	{
5549	uint8_t port_speed;
5550
5551	switch (speed_code) {
5552	case LPFC_FC_LA_SPEED_1G:
5553	port_speed = LPFC_LINK_SPEED_1GHZ;
5554	break;
5555	case LPFC_FC_LA_SPEED_2G:
5556	port_speed = LPFC_LINK_SPEED_2GHZ;
5557	break;
5558	case LPFC_FC_LA_SPEED_4G:
5559	port_speed = LPFC_LINK_SPEED_4GHZ;
5560	break;
5561	case LPFC_FC_LA_SPEED_8G:
5562	port_speed = LPFC_LINK_SPEED_8GHZ;
5563	break;
5564	case LPFC_FC_LA_SPEED_16G:
5565	port_speed = LPFC_LINK_SPEED_16GHZ;
5566	break;
5567	case LPFC_FC_LA_SPEED_32G:
5568	port_speed = LPFC_LINK_SPEED_32GHZ;
5569	break;
5570	case LPFC_FC_LA_SPEED_64G:
5571	port_speed = LPFC_LINK_SPEED_64GHZ;
5572	break;
5573	case LPFC_FC_LA_SPEED_128G:
5574	port_speed = LPFC_LINK_SPEED_128GHZ;
5575	break;
5576	case LPFC_FC_LA_SPEED_256G:
5577	port_speed = LPFC_LINK_SPEED_256GHZ;
5578	break;
5579	default:
5580	port_speed = 0;
5581	break;
5582	}
5583
5584	return port_speed;
5585	}
5586
5587	void
5588	lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5589	{
5590	if (!phba->rx_monitor) {
5591	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5592	"4411 Rx Monitor Info is empty.\n");
5593	} else {
5594	lpfc_rx_monitor_report(phba, rx_monitor: phba->rx_monitor, NULL, buf_len: 0,
5595	LPFC_MAX_RXMONITOR_DUMP);
5596	}
5597	}
5598
5599	/**
5600	* lpfc_cgn_update_stat - Save data into congestion stats buffer
5601	* @phba: pointer to lpfc hba data structure.
5602	* @dtag: FPIN descriptor received
5603	*
5604	* Increment the FPIN received counter/time when it happens.
5605	*/
5606	void
5607	lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5608	{
5609	struct lpfc_cgn_info *cp;
5610	u32 value;
5611
5612	/* Make sure we have a congestion info buffer */
5613	if (!phba->cgn_i)
5614	return;
5615	cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5616
5617	/* Update congestion statistics */
5618	switch (dtag) {
5619	case ELS_DTAG_LNK_INTEGRITY:
5620	le32_add_cpu(var: &cp->link_integ_notification, val: 1);
5621	lpfc_cgn_update_tstamp(phba, ts: &cp->stat_lnk);
5622	break;
5623	case ELS_DTAG_DELIVERY:
5624	le32_add_cpu(var: &cp->delivery_notification, val: 1);
5625	lpfc_cgn_update_tstamp(phba, ts: &cp->stat_delivery);
5626	break;
5627	case ELS_DTAG_PEER_CONGEST:
5628	le32_add_cpu(var: &cp->cgn_peer_notification, val: 1);
5629	lpfc_cgn_update_tstamp(phba, ts: &cp->stat_peer);
5630	break;
5631	case ELS_DTAG_CONGESTION:
5632	le32_add_cpu(var: &cp->cgn_notification, val: 1);
5633	lpfc_cgn_update_tstamp(phba, ts: &cp->stat_fpin);
5634	}
5635	if (phba->cgn_fpin_frequency &&
5636	phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5637	value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5638	cp->cgn_stat_npm = value;
5639	}
5640
5641	value = lpfc_cgn_calc_crc32(bufp: cp, LPFC_CGN_INFO_SZ,
5642	LPFC_CGN_CRC32_SEED);
5643	cp->cgn_info_crc = cpu_to_le32(value);
5644	}
5645
5646	/**
5647	* lpfc_cgn_update_tstamp - Update cmf timestamp
5648	* @phba: pointer to lpfc hba data structure.
5649	* @ts: structure to write the timestamp to.
5650	*/
5651	void
5652	lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts)
5653	{
5654	struct timespec64 cur_time;
5655	struct tm tm_val;
5656
5657	ktime_get_real_ts64(tv: &cur_time);
5658	time64_to_tm(totalsecs: cur_time.tv_sec, offset: 0, result: &tm_val);
5659
5660	ts->month = tm_val.tm_mon + 1;
5661	ts->day = tm_val.tm_mday;
5662	ts->year = tm_val.tm_year - 100;
5663	ts->hour = tm_val.tm_hour;
5664	ts->minute = tm_val.tm_min;
5665	ts->second = tm_val.tm_sec;
5666
5667	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5668	"2646 Updated CMF timestamp : "
5669	"%u/%u/%u %u:%u:%u\n",
5670	ts->day, ts->month,
5671	ts->year, ts->hour,
5672	ts->minute, ts->second);
5673	}
5674
5675	/**
5676	* lpfc_cmf_stats_timer - Save data into registered congestion buffer
5677	* @timer: Timer cookie to access lpfc private data
5678	*
5679	* Save the congestion event data every minute.
5680	* On the hour collapse all the minute data into hour data. Every day
5681	* collapse all the hour data into daily data. Separate driver
5682	* and fabrc congestion event counters that will be saved out
5683	* to the registered congestion buffer every minute.
5684	*/
5685	static enum hrtimer_restart
5686	lpfc_cmf_stats_timer(struct hrtimer *timer)
5687	{
5688	struct lpfc_hba *phba;
5689	struct lpfc_cgn_info *cp;
5690	uint32_t i, index;
5691	uint16_t value, mvalue;
5692	uint64_t bps;
5693	uint32_t mbps;
5694	uint32_t dvalue, wvalue, lvalue, avalue;
5695	uint64_t latsum;
5696	__le16 *ptr;
5697	__le32 *lptr;
5698	__le16 *mptr;
5699
5700	phba = container_of(timer, struct lpfc_hba, cmf_stats_timer);
5701	/* Make sure we have a congestion info buffer */
5702	if (!phba->cgn_i)
5703	return HRTIMER_NORESTART;
5704	cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5705
5706	phba->cgn_evt_timestamp = jiffies +
5707	msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5708	phba->cgn_evt_minute++;
5709
5710	/* We should get to this point in the routine on 1 minute intervals */
5711	lpfc_cgn_update_tstamp(phba, ts: &cp->base_time);
5712
5713	if (phba->cgn_fpin_frequency &&
5714	phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5715	value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5716	cp->cgn_stat_npm = value;
5717	}
5718
5719	/* Read and clear the latency counters for this minute */
5720	lvalue = atomic_read(v: &phba->cgn_latency_evt_cnt);
5721	latsum = atomic64_read(v: &phba->cgn_latency_evt);
5722	atomic_set(v: &phba->cgn_latency_evt_cnt, i: 0);
5723	atomic64_set(v: &phba->cgn_latency_evt, i: 0);
5724
5725	/* We need to store MB/sec bandwidth in the congestion information.
5726	* block_cnt is count of 512 byte blocks for the entire minute,
5727	* bps will get bytes per sec before finally converting to MB/sec.
5728	*/
5729	bps = div_u64(dividend: phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5730	phba->rx_block_cnt = 0;
5731	mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5732
5733	/* Every minute */
5734	/* cgn parameters */
5735	cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5736	cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5737	cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5738	cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5739
5740	/* Fill in default LUN qdepth */
5741	value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5742	cp->cgn_lunq = cpu_to_le16(value);
5743
5744	/* Record congestion buffer info - every minute
5745	* cgn_driver_evt_cnt (Driver events)
5746	* cgn_fabric_warn_cnt (Congestion Warnings)
5747	* cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5748	* cgn_fabric_alarm_cnt (Congestion Alarms)
5749	*/
5750	index = ++cp->cgn_index_minute;
5751	if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5752	cp->cgn_index_minute = 0;
5753	index = 0;
5754	}
5755
5756	/* Get the number of driver events in this sample and reset counter */
5757	dvalue = atomic_read(v: &phba->cgn_driver_evt_cnt);
5758	atomic_set(v: &phba->cgn_driver_evt_cnt, i: 0);
5759
5760	/* Get the number of warning events - FPIN and Signal for this minute */
5761	wvalue = 0;
5762	if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5763	phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5764	phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5765	wvalue = atomic_read(v: &phba->cgn_fabric_warn_cnt);
5766	atomic_set(v: &phba->cgn_fabric_warn_cnt, i: 0);
5767
5768	/* Get the number of alarm events - FPIN and Signal for this minute */
5769	avalue = 0;
5770	if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5771	phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5772	avalue = atomic_read(v: &phba->cgn_fabric_alarm_cnt);
5773	atomic_set(v: &phba->cgn_fabric_alarm_cnt, i: 0);
5774
5775	/* Collect the driver, warning, alarm and latency counts for this
5776	* minute into the driver congestion buffer.
5777	*/
5778	ptr = &cp->cgn_drvr_min[index];
5779	value = (uint16_t)dvalue;
5780	*ptr = cpu_to_le16(value);
5781
5782	ptr = &cp->cgn_warn_min[index];
5783	value = (uint16_t)wvalue;
5784	*ptr = cpu_to_le16(value);
5785
5786	ptr = &cp->cgn_alarm_min[index];
5787	value = (uint16_t)avalue;
5788	*ptr = cpu_to_le16(value);
5789
5790	lptr = &cp->cgn_latency_min[index];
5791	if (lvalue) {
5792	lvalue = (uint32_t)div_u64(dividend: latsum, divisor: lvalue);
5793	*lptr = cpu_to_le32(lvalue);
5794	} else {
5795	*lptr = 0;
5796	}
5797
5798	/* Collect the bandwidth value into the driver's congesion buffer. */
5799	mptr = &cp->cgn_bw_min[index];
5800	*mptr = cpu_to_le16(mvalue);
5801
5802	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5803	"2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5804	index, dvalue, wvalue, *lptr, mvalue, avalue);
5805
5806	/* Every hour */
5807	if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5808	/* Record congestion buffer info - every hour
5809	* Collapse all minutes into an hour
5810	*/
5811	index = ++cp->cgn_index_hour;
5812	if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5813	cp->cgn_index_hour = 0;
5814	index = 0;
5815	}
5816
5817	dvalue = 0;
5818	wvalue = 0;
5819	lvalue = 0;
5820	avalue = 0;
5821	mvalue = 0;
5822	mbps = 0;
5823	for (i = 0; i < LPFC_MIN_HOUR; i++) {
5824	dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5825	wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5826	lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5827	mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5828	avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5829	}
5830	if (lvalue) /* Avg of latency averages */
5831	lvalue /= LPFC_MIN_HOUR;
5832	if (mbps) /* Avg of Bandwidth averages */
5833	mvalue = mbps / LPFC_MIN_HOUR;
5834
5835	lptr = &cp->cgn_drvr_hr[index];
5836	*lptr = cpu_to_le32(dvalue);
5837	lptr = &cp->cgn_warn_hr[index];
5838	*lptr = cpu_to_le32(wvalue);
5839	lptr = &cp->cgn_latency_hr[index];
5840	*lptr = cpu_to_le32(lvalue);
5841	mptr = &cp->cgn_bw_hr[index];
5842	*mptr = cpu_to_le16(mvalue);
5843	lptr = &cp->cgn_alarm_hr[index];
5844	*lptr = cpu_to_le32(avalue);
5845
5846	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5847	"2419 Congestion Info - hour "
5848	"(%d): %d %d %d %d %d\n",
5849	index, dvalue, wvalue, lvalue, mvalue, avalue);
5850	}
5851
5852	/* Every day */
5853	if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5854	/* Record congestion buffer info - every hour
5855	* Collapse all hours into a day. Rotate days
5856	* after LPFC_MAX_CGN_DAYS.
5857	*/
5858	index = ++cp->cgn_index_day;
5859	if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5860	cp->cgn_index_day = 0;
5861	index = 0;
5862	}
5863
5864	dvalue = 0;
5865	wvalue = 0;
5866	lvalue = 0;
5867	mvalue = 0;
5868	mbps = 0;
5869	avalue = 0;
5870	for (i = 0; i < LPFC_HOUR_DAY; i++) {
5871	dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5872	wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5873	lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5874	mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5875	avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5876	}
5877	if (lvalue) /* Avg of latency averages */
5878	lvalue /= LPFC_HOUR_DAY;
5879	if (mbps) /* Avg of Bandwidth averages */
5880	mvalue = mbps / LPFC_HOUR_DAY;
5881
5882	lptr = &cp->cgn_drvr_day[index];
5883	*lptr = cpu_to_le32(dvalue);
5884	lptr = &cp->cgn_warn_day[index];
5885	*lptr = cpu_to_le32(wvalue);
5886	lptr = &cp->cgn_latency_day[index];
5887	*lptr = cpu_to_le32(lvalue);
5888	mptr = &cp->cgn_bw_day[index];
5889	*mptr = cpu_to_le16(mvalue);
5890	lptr = &cp->cgn_alarm_day[index];
5891	*lptr = cpu_to_le32(avalue);
5892
5893	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5894	"2420 Congestion Info - daily (%d): "
5895	"%d %d %d %d %d\n",
5896	index, dvalue, wvalue, lvalue, mvalue, avalue);
5897	}
5898
5899	/* Use the frequency found in the last rcv'ed FPIN */
5900	value = phba->cgn_fpin_frequency;
5901	cp->cgn_warn_freq = cpu_to_le16(value);
5902	cp->cgn_alarm_freq = cpu_to_le16(value);
5903
5904	lvalue = lpfc_cgn_calc_crc32(bufp: cp, LPFC_CGN_INFO_SZ,
5905	LPFC_CGN_CRC32_SEED);
5906	cp->cgn_info_crc = cpu_to_le32(lvalue);
5907
5908	hrtimer_forward_now(timer, interval: ktime_set(secs: 0, LPFC_SEC_MIN * NSEC_PER_SEC));
5909
5910	return HRTIMER_RESTART;
5911	}
5912
5913	/**
5914	* lpfc_calc_cmf_latency - latency from start of rxate timer interval
5915	* @phba: The Hba for which this call is being executed.
5916	*
5917	* The routine calculates the latency from the beginning of the CMF timer
5918	* interval to the current point in time. It is called from IO completion
5919	* when we exceed our Bandwidth limitation for the time interval.
5920	*/
5921	uint32_t
5922	lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5923	{
5924	struct timespec64 cmpl_time;
5925	uint32_t msec = 0;
5926
5927	ktime_get_real_ts64(tv: &cmpl_time);
5928
5929	/* This routine works on a ms granularity so sec and usec are
5930	* converted accordingly.
5931	*/
5932	if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5933	msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5934	NSEC_PER_MSEC;
5935	} else {
5936	if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5937	msec = (cmpl_time.tv_sec -
5938	phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5939	msec += ((cmpl_time.tv_nsec -
5940	phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5941	} else {
5942	msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5943	1) * MSEC_PER_SEC;
5944	msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5945	cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5946	}
5947	}
5948	return msec;
5949	}
5950
5951	/**
5952	* lpfc_cmf_timer - This is the timer function for one congestion
5953	* rate interval.
5954	* @timer: Pointer to the high resolution timer that expired
5955	*/
5956	static enum hrtimer_restart
5957	lpfc_cmf_timer(struct hrtimer *timer)
5958	{
5959	struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5960	cmf_timer);
5961	struct rx_info_entry entry;
5962	uint32_t io_cnt;
5963	uint32_t busy, max_read;
5964	uint64_t total, rcv, lat, mbpi, extra, cnt;
5965	int timer_interval = LPFC_CMF_INTERVAL;
5966	uint32_t ms;
5967	struct lpfc_cgn_stat *cgs;
5968	int cpu;
5969
5970	/* Only restart the timer if congestion mgmt is on */
5971	if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5972	!phba->cmf_latency.tv_sec) {
5973	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5974	"6224 CMF timer exit: %d %lld\n",
5975	phba->cmf_active_mode,
5976	(uint64_t)phba->cmf_latency.tv_sec);
5977	return HRTIMER_NORESTART;
5978	}
5979
5980	/* If pport is not ready yet, just exit and wait for
5981	* the next timer cycle to hit.
5982	*/
5983	if (!phba->pport)
5984	goto skip;
5985
5986	/* Do not block SCSI IO while in the timer routine since
5987	* total_bytes will be cleared
5988	*/
5989	atomic_set(v: &phba->cmf_stop_io, i: 1);
5990
5991	/* First we need to calculate the actual ms between
5992	* the last timer interrupt and this one. We ask for
5993	* LPFC_CMF_INTERVAL, however the actual time may
5994	* vary depending on system overhead.
5995	*/
5996	ms = lpfc_calc_cmf_latency(phba);
5997
5998
5999	/* Immediately after we calculate the time since the last
6000	* timer interrupt, set the start time for the next
6001	* interrupt
6002	*/
6003	ktime_get_real_ts64(tv: &phba->cmf_latency);
6004
6005	phba->cmf_link_byte_count =
6006	div_u64(dividend: phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, divisor: 1000);
6007
6008	/* Collect all the stats from the prior timer interval */
6009	total = 0;
6010	io_cnt = 0;
6011	lat = 0;
6012	rcv = 0;
6013	for_each_present_cpu(cpu) {
6014	cgs = per_cpu_ptr(phba->cmf_stat, cpu);
6015	total += atomic64_xchg(v: &cgs->total_bytes, new: 0);
6016	io_cnt += atomic_xchg(v: &cgs->rx_io_cnt, new: 0);
6017	lat += atomic64_xchg(v: &cgs->rx_latency, new: 0);
6018	rcv += atomic64_xchg(v: &cgs->rcv_bytes, new: 0);
6019	}
6020
6021	/* Before we issue another CMF_SYNC_WQE, retrieve the BW
6022	* returned from the last CMF_SYNC_WQE issued, from
6023	* cmf_last_sync_bw. This will be the target BW for
6024	* this next timer interval.
6025	*/
6026	if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
6027	phba->link_state != LPFC_LINK_DOWN &&
6028	phba->hba_flag & HBA_SETUP) {
6029	mbpi = phba->cmf_last_sync_bw;
6030	phba->cmf_last_sync_bw = 0;
6031	extra = 0;
6032
6033	/* Calculate any extra bytes needed to account for the
6034	* timer accuracy. If we are less than LPFC_CMF_INTERVAL
6035	* calculate the adjustment needed for total to reflect
6036	* a full LPFC_CMF_INTERVAL.
6037	*/
6038	if (ms && ms < LPFC_CMF_INTERVAL) {
6039	cnt = div_u64(dividend: total, divisor: ms); /* bytes per ms */
6040	cnt *= LPFC_CMF_INTERVAL; /* what total should be */
6041	extra = cnt - total;
6042	}
6043	lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total: total + extra);
6044	} else {
6045	/* For Monitor mode or link down we want mbpi
6046	* to be the full link speed
6047	*/
6048	mbpi = phba->cmf_link_byte_count;
6049	extra = 0;
6050	}
6051	phba->cmf_timer_cnt++;
6052
6053	if (io_cnt) {
6054	/* Update congestion info buffer latency in us */
6055	atomic_add(i: io_cnt, v: &phba->cgn_latency_evt_cnt);
6056	atomic64_add(i: lat, v: &phba->cgn_latency_evt);
6057	}
6058	busy = atomic_xchg(v: &phba->cmf_busy, new: 0);
6059	max_read = atomic_xchg(v: &phba->rx_max_read_cnt, new: 0);
6060
6061	/* Calculate MBPI for the next timer interval */
6062	if (mbpi) {
6063	if (mbpi > phba->cmf_link_byte_count ||
6064	phba->cmf_active_mode == LPFC_CFG_MONITOR)
6065	mbpi = phba->cmf_link_byte_count;
6066
6067	/* Change max_bytes_per_interval to what the prior
6068	* CMF_SYNC_WQE cmpl indicated.
6069	*/
6070	if (mbpi != phba->cmf_max_bytes_per_interval)
6071	phba->cmf_max_bytes_per_interval = mbpi;
6072	}
6073
6074	/* Save rxmonitor information for debug */
6075	if (phba->rx_monitor) {
6076	entry.total_bytes = total;
6077	entry.cmf_bytes = total + extra;
6078	entry.rcv_bytes = rcv;
6079	entry.cmf_busy = busy;
6080	entry.cmf_info = phba->cmf_active_info;
6081	if (io_cnt) {
6082	entry.avg_io_latency = div_u64(dividend: lat, divisor: io_cnt);
6083	entry.avg_io_size = div_u64(dividend: rcv, divisor: io_cnt);
6084	} else {
6085	entry.avg_io_latency = 0;
6086	entry.avg_io_size = 0;
6087	}
6088	entry.max_read_cnt = max_read;
6089	entry.io_cnt = io_cnt;
6090	entry.max_bytes_per_interval = mbpi;
6091	if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6092	entry.timer_utilization = phba->cmf_last_ts;
6093	else
6094	entry.timer_utilization = ms;
6095	entry.timer_interval = ms;
6096	phba->cmf_last_ts = 0;
6097
6098	lpfc_rx_monitor_record(rx_monitor: phba->rx_monitor, entry: &entry);
6099	}
6100
6101	if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6102	/* If Monitor mode, check if we are oversubscribed
6103	* against the full line rate.
6104	*/
6105	if (mbpi && total > mbpi)
6106	atomic_inc(v: &phba->cgn_driver_evt_cnt);
6107	}
6108	phba->rx_block_cnt += div_u64(dividend: rcv, divisor: 512); /* save 512 byte block cnt */
6109
6110	/* Since total_bytes has already been zero'ed, its okay to unblock
6111	* after max_bytes_per_interval is setup.
6112	*/
6113	if (atomic_xchg(v: &phba->cmf_bw_wait, new: 0))
6114	queue_work(wq: phba->wq, work: &phba->unblock_request_work);
6115
6116	/* SCSI IO is now unblocked */
6117	atomic_set(v: &phba->cmf_stop_io, i: 0);
6118
6119	skip:
6120	hrtimer_forward_now(timer,
6121	interval: ktime_set(secs: 0, nsecs: timer_interval * NSEC_PER_MSEC));
6122	return HRTIMER_RESTART;
6123	}
6124
6125	#define trunk_link_status(__idx)\
6126	bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6127	((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6128	"Link up" : "Link down") : "NA"
6129	/* Did port __idx reported an error */
6130	#define trunk_port_fault(__idx)\
6131	bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6132	(port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6133
6134	static void
6135	lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6136	struct lpfc_acqe_fc_la *acqe_fc)
6137	{
6138	uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6139	uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6140	u8 cnt = 0;
6141
6142	phba->sli4_hba.link_state.speed =
6143	lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6144	bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6145
6146	phba->sli4_hba.link_state.logical_speed =
6147	bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6148	/* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6149	phba->fc_linkspeed =
6150	lpfc_async_link_speed_to_read_top(
6151	phba,
6152	bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6153
6154	if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6155	phba->trunk_link.link0.state =
6156	bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6157	? LPFC_LINK_UP : LPFC_LINK_DOWN;
6158	phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6159	cnt++;
6160	}
6161	if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6162	phba->trunk_link.link1.state =
6163	bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6164	? LPFC_LINK_UP : LPFC_LINK_DOWN;
6165	phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6166	cnt++;
6167	}
6168	if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6169	phba->trunk_link.link2.state =
6170	bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6171	? LPFC_LINK_UP : LPFC_LINK_DOWN;
6172	phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6173	cnt++;
6174	}
6175	if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6176	phba->trunk_link.link3.state =
6177	bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6178	? LPFC_LINK_UP : LPFC_LINK_DOWN;
6179	phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6180	cnt++;
6181	}
6182
6183	if (cnt)
6184	phba->trunk_link.phy_lnk_speed =
6185	phba->sli4_hba.link_state.logical_speed / (cnt * 1000);
6186	else
6187	phba->trunk_link.phy_lnk_speed = LPFC_LINK_SPEED_UNKNOWN;
6188
6189	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6190	"2910 Async FC Trunking Event - Speed:%d\n"
6191	"\tLogical speed:%d "
6192	"port0: %s port1: %s port2: %s port3: %s\n",
6193	phba->sli4_hba.link_state.speed,
6194	phba->sli4_hba.link_state.logical_speed,
6195	trunk_link_status(0), trunk_link_status(1),
6196	trunk_link_status(2), trunk_link_status(3));
6197
6198	if (phba->cmf_active_mode != LPFC_CFG_OFF)
6199	lpfc_cmf_signal_init(phba);
6200
6201	if (port_fault)
6202	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6203	"3202 trunk error:0x%x (%s) seen on port0:%s "
6204	/*
6205	* SLI-4: We have only 0xA error codes
6206	* defined as of now. print an appropriate
6207	* message in case driver needs to be updated.
6208	*/
6209	"port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6210	"UNDEFINED. update driver." : trunk_errmsg[err],
6211	trunk_port_fault(0), trunk_port_fault(1),
6212	trunk_port_fault(2), trunk_port_fault(3));
6213	}
6214
6215
6216	/**
6217	* lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6218	* @phba: pointer to lpfc hba data structure.
6219	* @acqe_fc: pointer to the async fc completion queue entry.
6220	*
6221	* This routine is to handle the SLI4 asynchronous FC event. It will simply log
6222	* that the event was received and then issue a read_topology mailbox command so
6223	* that the rest of the driver will treat it the same as SLI3.
6224	**/
6225	static void
6226	lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6227	{
6228	LPFC_MBOXQ_t *pmb;
6229	MAILBOX_t *mb;
6230	struct lpfc_mbx_read_top *la;
6231	char *log_level;
6232	int rc;
6233
6234	if (bf_get(lpfc_trailer_type, acqe_fc) !=
6235	LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6236	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6237	"2895 Non FC link Event detected.(%d)\n",
6238	bf_get(lpfc_trailer_type, acqe_fc));
6239	return;
6240	}
6241
6242	if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6243	LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6244	lpfc_update_trunk_link_status(phba, acqe_fc);
6245	return;
6246	}
6247
6248	/* Keep the link status for extra SLI4 state machine reference */
6249	phba->sli4_hba.link_state.speed =
6250	lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6251	bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6252	phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6253	phba->sli4_hba.link_state.topology =
6254	bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6255	phba->sli4_hba.link_state.status =
6256	bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6257	phba->sli4_hba.link_state.type =
6258	bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6259	phba->sli4_hba.link_state.number =
6260	bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6261	phba->sli4_hba.link_state.fault =
6262	bf_get(lpfc_acqe_link_fault, acqe_fc);
6263	phba->sli4_hba.link_state.link_status =
6264	bf_get(lpfc_acqe_fc_la_link_status, acqe_fc);
6265
6266	/*
6267	* Only select attention types need logical speed modification to what
6268	* was previously set.
6269	*/
6270	if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_LINK_UP &&
6271	phba->sli4_hba.link_state.status < LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
6272	if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6273	LPFC_FC_LA_TYPE_LINK_DOWN)
6274	phba->sli4_hba.link_state.logical_speed = 0;
6275	else if (!phba->sli4_hba.conf_trunk)
6276	phba->sli4_hba.link_state.logical_speed =
6277	bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6278	}
6279
6280	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6281	"2896 Async FC event - Speed:%dGBaud Topology:x%x "
6282	"LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6283	"%dMbps Fault:x%x Link Status:x%x\n",
6284	phba->sli4_hba.link_state.speed,
6285	phba->sli4_hba.link_state.topology,
6286	phba->sli4_hba.link_state.status,
6287	phba->sli4_hba.link_state.type,
6288	phba->sli4_hba.link_state.number,
6289	phba->sli4_hba.link_state.logical_speed,
6290	phba->sli4_hba.link_state.fault,
6291	phba->sli4_hba.link_state.link_status);
6292
6293	/*
6294	* The following attention types are informational only, providing
6295	* further details about link status. Overwrite the value of
6296	* link_state.status appropriately. No further action is required.
6297	*/
6298	if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
6299	switch (phba->sli4_hba.link_state.status) {
6300	case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
6301	log_level = KERN_WARNING;
6302	phba->sli4_hba.link_state.status =
6303	LPFC_FC_LA_TYPE_LINK_DOWN;
6304	break;
6305	case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
6306	/*
6307	* During bb credit recovery establishment, receiving
6308	* this attention type is normal. Link Up attention
6309	* type is expected to occur before this informational
6310	* attention type so keep the Link Up status.
6311	*/
6312	log_level = KERN_INFO;
6313	phba->sli4_hba.link_state.status =
6314	LPFC_FC_LA_TYPE_LINK_UP;
6315	break;
6316	default:
6317	log_level = KERN_INFO;
6318	break;
6319	}
6320	lpfc_log_msg(phba, log_level, LOG_SLI,
6321	"2992 Async FC event - Informational Link "
6322	"Attention Type x%x\n",
6323	bf_get(lpfc_acqe_fc_la_att_type, acqe_fc));
6324	return;
6325	}
6326
6327	pmb = (LPFC_MBOXQ_t *)mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
6328	if (!pmb) {
6329	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6330	"2897 The mboxq allocation failed\n");
6331	return;
6332	}
6333	rc = lpfc_mbox_rsrc_prep(phba, mbox: pmb);
6334	if (rc) {
6335	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6336	"2898 The mboxq prep failed\n");
6337	goto out_free_pmb;
6338	}
6339
6340	/* Cleanup any outstanding ELS commands */
6341	lpfc_els_flush_all_cmd(phba);
6342
6343	/* Block ELS IOCBs until we have done process link event */
6344	phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6345
6346	/* Update link event statistics */
6347	phba->sli.slistat.link_event++;
6348
6349	/* Create lpfc_handle_latt mailbox command from link ACQE */
6350	lpfc_read_topology(phba, pmb, pmb->ctx_buf);
6351	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6352	pmb->vport = phba->pport;
6353
6354	if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6355	phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6356
6357	switch (phba->sli4_hba.link_state.status) {
6358	case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6359	phba->link_flag |= LS_MDS_LINK_DOWN;
6360	break;
6361	case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6362	phba->link_flag |= LS_MDS_LOOPBACK;
6363	break;
6364	default:
6365	break;
6366	}
6367
6368	/* Initialize completion status */
6369	mb = &pmb->u.mb;
6370	mb->mbxStatus = MBX_SUCCESS;
6371
6372	/* Parse port fault information field */
6373	lpfc_sli4_parse_latt_fault(phba, acqe_link: (void *)acqe_fc);
6374
6375	/* Parse and translate link attention fields */
6376	la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6377	la->eventTag = acqe_fc->event_tag;
6378
6379	if (phba->sli4_hba.link_state.status ==
6380	LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6381	bf_set(lpfc_mbx_read_top_att_type, la,
6382	LPFC_FC_LA_TYPE_UNEXP_WWPN);
6383	} else {
6384	bf_set(lpfc_mbx_read_top_att_type, la,
6385	LPFC_FC_LA_TYPE_LINK_DOWN);
6386	}
6387	/* Invoke the mailbox command callback function */
6388	lpfc_mbx_cmpl_read_topology(phba, pmb);
6389
6390	return;
6391	}
6392
6393	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6394	if (rc == MBX_NOT_FINISHED)
6395	goto out_free_pmb;
6396	return;
6397
6398	out_free_pmb:
6399	lpfc_mbox_rsrc_cleanup(phba, mbox: pmb, locked: MBOX_THD_UNLOCKED);
6400	}
6401
6402	/**
6403	* lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6404	* @phba: pointer to lpfc hba data structure.
6405	* @acqe_sli: pointer to the async SLI completion queue entry.
6406	*
6407	* This routine is to handle the SLI4 asynchronous SLI events.
6408	**/
6409	static void
6410	lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6411	{
6412	char port_name;
6413	char message[128];
6414	uint8_t status;
6415	uint8_t evt_type;
6416	uint8_t operational = 0;
6417	struct temp_event temp_event_data;
6418	struct lpfc_acqe_misconfigured_event *misconfigured;
6419	struct lpfc_acqe_cgn_signal *cgn_signal;
6420	struct Scsi_Host *shost;
6421	struct lpfc_vport **vports;
6422	int rc, i, cnt;
6423
6424	evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6425
6426	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6427	"2901 Async SLI event - Type:%d, Event Data: x%08x "
6428	"x%08x x%08x x%08x\n", evt_type,
6429	acqe_sli->event_data1, acqe_sli->event_data2,
6430	acqe_sli->event_data3, acqe_sli->trailer);
6431
6432	port_name = phba->Port[0];
6433	if (port_name == 0x00)
6434	port_name = '?'; /* get port name is empty */
6435
6436	switch (evt_type) {
6437	case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6438	temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6439	temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6440	temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6441
6442	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6443	"3190 Over Temperature:%d Celsius- Port Name %c\n",
6444	acqe_sli->event_data1, port_name);
6445
6446	phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6447	shost = lpfc_shost_from_vport(vport: phba->pport);
6448	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
6449	data_len: sizeof(temp_event_data),
6450	data_buf: (char *)&temp_event_data,
6451	SCSI_NL_VID_TYPE_PCI
6452	| PCI_VENDOR_ID_EMULEX);
6453	break;
6454	case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6455	temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6456	temp_event_data.event_code = LPFC_NORMAL_TEMP;
6457	temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6458
6459	lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_LDS_EVENT,
6460	"3191 Normal Temperature:%d Celsius - Port Name %c\n",
6461	acqe_sli->event_data1, port_name);
6462
6463	shost = lpfc_shost_from_vport(vport: phba->pport);
6464	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
6465	data_len: sizeof(temp_event_data),
6466	data_buf: (char *)&temp_event_data,
6467	SCSI_NL_VID_TYPE_PCI
6468	| PCI_VENDOR_ID_EMULEX);
6469	break;
6470	case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6471	misconfigured = (struct lpfc_acqe_misconfigured_event *)
6472	&acqe_sli->event_data1;
6473
6474	/* fetch the status for this port */
6475	switch (phba->sli4_hba.lnk_info.lnk_no) {
6476	case LPFC_LINK_NUMBER_0:
6477	status = bf_get(lpfc_sli_misconfigured_port0_state,
6478	&misconfigured->theEvent);
6479	operational = bf_get(lpfc_sli_misconfigured_port0_op,
6480	&misconfigured->theEvent);
6481	break;
6482	case LPFC_LINK_NUMBER_1:
6483	status = bf_get(lpfc_sli_misconfigured_port1_state,
6484	&misconfigured->theEvent);
6485	operational = bf_get(lpfc_sli_misconfigured_port1_op,
6486	&misconfigured->theEvent);
6487	break;
6488	case LPFC_LINK_NUMBER_2:
6489	status = bf_get(lpfc_sli_misconfigured_port2_state,
6490	&misconfigured->theEvent);
6491	operational = bf_get(lpfc_sli_misconfigured_port2_op,
6492	&misconfigured->theEvent);
6493	break;
6494	case LPFC_LINK_NUMBER_3:
6495	status = bf_get(lpfc_sli_misconfigured_port3_state,
6496	&misconfigured->theEvent);
6497	operational = bf_get(lpfc_sli_misconfigured_port3_op,
6498	&misconfigured->theEvent);
6499	break;
6500	default:
6501	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6502	"3296 "
6503	"LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6504	"event: Invalid link %d",
6505	phba->sli4_hba.lnk_info.lnk_no);
6506	return;
6507	}
6508
6509	/* Skip if optic state unchanged */
6510	if (phba->sli4_hba.lnk_info.optic_state == status)
6511	return;
6512
6513	switch (status) {
6514	case LPFC_SLI_EVENT_STATUS_VALID:
6515	sprintf(buf: message, fmt: "Physical Link is functional");
6516	break;
6517	case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6518	sprintf(buf: message, fmt: "Optics faulted/incorrectly "
6519	"installed/not installed - Reseat optics, "
6520	"if issue not resolved, replace.");
6521	break;
6522	case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6523	sprintf(buf: message,
6524	fmt: "Optics of two types installed - Remove one "
6525	"optic or install matching pair of optics.");
6526	break;
6527	case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6528	sprintf(buf: message, fmt: "Incompatible optics - Replace with "
6529	"compatible optics for card to function.");
6530	break;
6531	case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6532	sprintf(buf: message, fmt: "Unqualified optics - Replace with "
6533	"Avago optics for Warranty and Technical "
6534	"Support - Link is%s operational",
6535	(operational) ? " not" : "");
6536	break;
6537	case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6538	sprintf(buf: message, fmt: "Uncertified optics - Replace with "
6539	"Avago-certified optics to enable link "
6540	"operation - Link is%s operational",
6541	(operational) ? " not" : "");
6542	break;
6543	default:
6544	/* firmware is reporting a status we don't know about */
6545	sprintf(buf: message, fmt: "Unknown event status x%02x", status);
6546	break;
6547	}
6548
6549	/* Issue READ_CONFIG mbox command to refresh supported speeds */
6550	rc = lpfc_sli4_read_config(phba);
6551	if (rc) {
6552	phba->lmt = 0;
6553	lpfc_printf_log(phba, KERN_ERR,
6554	LOG_TRACE_EVENT,
6555	"3194 Unable to retrieve supported "
6556	"speeds, rc = 0x%x\n", rc);
6557	}
6558	rc = lpfc_sli4_refresh_params(phba);
6559	if (rc) {
6560	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6561	"3174 Unable to update pls support, "
6562	"rc x%x\n", rc);
6563	}
6564	vports = lpfc_create_vport_work_array(phba);
6565	if (vports != NULL) {
6566	for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6567	i++) {
6568	shost = lpfc_shost_from_vport(vport: vports[i]);
6569	lpfc_host_supported_speeds_set(shost);
6570	}
6571	}
6572	lpfc_destroy_vport_work_array(phba, vports);
6573
6574	phba->sli4_hba.lnk_info.optic_state = status;
6575	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6576	"3176 Port Name %c %s\n", port_name, message);
6577	break;
6578	case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6579	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6580	"3192 Remote DPort Test Initiated - "
6581	"Event Data1:x%08x Event Data2: x%08x\n",
6582	acqe_sli->event_data1, acqe_sli->event_data2);
6583	break;
6584	case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6585	/* Call FW to obtain active parms */
6586	lpfc_sli4_cgn_parm_chg_evt(phba);
6587	break;
6588	case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6589	/* Misconfigured WWN. Reports that the SLI Port is configured
6590	* to use FA-WWN, but the attached device doesn’t support it.
6591	* Event Data1 - N.A, Event Data2 - N.A
6592	* This event only happens on the physical port.
6593	*/
6594	lpfc_log_msg(phba, KERN_WARNING, LOG_SLI | LOG_DISCOVERY,
6595	"2699 Misconfigured FA-PWWN - Attached device "
6596	"does not support FA-PWWN\n");
6597	phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_FABRIC;
6598	memset(phba->pport->fc_portname.u.wwn, 0,
6599	sizeof(struct lpfc_name));
6600	break;
6601	case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6602	/* EEPROM failure. No driver action is required */
6603	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6604	"2518 EEPROM failure - "
6605	"Event Data1: x%08x Event Data2: x%08x\n",
6606	acqe_sli->event_data1, acqe_sli->event_data2);
6607	break;
6608	case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6609	if (phba->cmf_active_mode == LPFC_CFG_OFF)
6610	break;
6611	cgn_signal = (struct lpfc_acqe_cgn_signal *)
6612	&acqe_sli->event_data1;
6613	phba->cgn_acqe_cnt++;
6614
6615	cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6616	atomic64_add(i: cnt, v: &phba->cgn_acqe_stat.warn);
6617	atomic64_add(i: cgn_signal->alarm_cnt, v: &phba->cgn_acqe_stat.alarm);
6618
6619	/* no threshold for CMF, even 1 signal will trigger an event */
6620
6621	/* Alarm overrides warning, so check that first */
6622	if (cgn_signal->alarm_cnt) {
6623	if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6624	/* Keep track of alarm cnt for CMF_SYNC_WQE */
6625	atomic_add(i: cgn_signal->alarm_cnt,
6626	v: &phba->cgn_sync_alarm_cnt);
6627	}
6628	} else if (cnt) {
6629	/* signal action needs to be taken */
6630	if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6631	phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6632	/* Keep track of warning cnt for CMF_SYNC_WQE */
6633	atomic_add(i: cnt, v: &phba->cgn_sync_warn_cnt);
6634	}
6635	}
6636	break;
6637	case LPFC_SLI_EVENT_TYPE_RD_SIGNAL:
6638	/* May be accompanied by a temperature event */
6639	lpfc_printf_log(phba, KERN_INFO,
6640	LOG_SLI | LOG_LINK_EVENT | LOG_LDS_EVENT,
6641	"2902 Remote Degrade Signaling: x%08x x%08x "
6642	"x%08x\n",
6643	acqe_sli->event_data1, acqe_sli->event_data2,
6644	acqe_sli->event_data3);
6645	break;
6646	case LPFC_SLI_EVENT_TYPE_RESET_CM_STATS:
6647	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
6648	"2905 Reset CM statistics\n");
6649	lpfc_sli4_async_cmstat_evt(phba);
6650	break;
6651	default:
6652	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6653	"3193 Unrecognized SLI event, type: 0x%x",
6654	evt_type);
6655	break;
6656	}
6657	}
6658
6659	/**
6660	* lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6661	* @vport: pointer to vport data structure.
6662	*
6663	* This routine is to perform Clear Virtual Link (CVL) on a vport in
6664	* response to a CVL event.
6665	*
6666	* Return the pointer to the ndlp with the vport if successful, otherwise
6667	* return NULL.
6668	**/
6669	static struct lpfc_nodelist *
6670	lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6671	{
6672	struct lpfc_nodelist *ndlp;
6673	struct Scsi_Host *shost;
6674	struct lpfc_hba *phba;
6675
6676	if (!vport)
6677	return NULL;
6678	phba = vport->phba;
6679	if (!phba)
6680	return NULL;
6681	ndlp = lpfc_findnode_did(vport, Fabric_DID);
6682	if (!ndlp) {
6683	/* Cannot find existing Fabric ndlp, so allocate a new one */
6684	ndlp = lpfc_nlp_init(vport, Fabric_DID);
6685	if (!ndlp)
6686	return NULL;
6687	/* Set the node type */
6688	ndlp->nlp_type |= NLP_FABRIC;
6689	/* Put ndlp onto node list */
6690	lpfc_enqueue_node(vport, ndlp);
6691	}
6692	if ((phba->pport->port_state < LPFC_FLOGI) &&
6693	(phba->pport->port_state != LPFC_VPORT_FAILED))
6694	return NULL;
6695	/* If virtual link is not yet instantiated ignore CVL */
6696	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6697	&& (vport->port_state != LPFC_VPORT_FAILED))
6698	return NULL;
6699	shost = lpfc_shost_from_vport(vport);
6700	if (!shost)
6701	return NULL;
6702	lpfc_linkdown_port(vport);
6703	lpfc_cleanup_pending_mbox(vport);
6704	set_bit(nr: FC_VPORT_CVL_RCVD, addr: &vport->fc_flag);
6705
6706	return ndlp;
6707	}
6708
6709	/**
6710	* lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6711	* @phba: pointer to lpfc hba data structure.
6712	*
6713	* This routine is to perform Clear Virtual Link (CVL) on all vports in
6714	* response to a FCF dead event.
6715	**/
6716	static void
6717	lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6718	{
6719	struct lpfc_vport **vports;
6720	int i;
6721
6722	vports = lpfc_create_vport_work_array(phba);
6723	if (vports)
6724	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6725	lpfc_sli4_perform_vport_cvl(vport: vports[i]);
6726	lpfc_destroy_vport_work_array(phba, vports);
6727	}
6728
6729	/**
6730	* lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6731	* @phba: pointer to lpfc hba data structure.
6732	* @acqe_fip: pointer to the async fcoe completion queue entry.
6733	*
6734	* This routine is to handle the SLI4 asynchronous fcoe event.
6735	**/
6736	static void
6737	lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6738	struct lpfc_acqe_fip *acqe_fip)
6739	{
6740	uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6741	int rc;
6742	struct lpfc_vport *vport;
6743	struct lpfc_nodelist *ndlp;
6744	int active_vlink_present;
6745	struct lpfc_vport **vports;
6746	int i;
6747
6748	phba->fc_eventTag = acqe_fip->event_tag;
6749	phba->fcoe_eventtag = acqe_fip->event_tag;
6750	switch (event_type) {
6751	case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6752	case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6753	if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6754	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6755	"2546 New FCF event, evt_tag:x%x, "
6756	"index:x%x\n",
6757	acqe_fip->event_tag,
6758	acqe_fip->index);
6759	else
6760	lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6761	LOG_DISCOVERY,
6762	"2788 FCF param modified event, "
6763	"evt_tag:x%x, index:x%x\n",
6764	acqe_fip->event_tag,
6765	acqe_fip->index);
6766	if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6767	/*
6768	* During period of FCF discovery, read the FCF
6769	* table record indexed by the event to update
6770	* FCF roundrobin failover eligible FCF bmask.
6771	*/
6772	lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6773	LOG_DISCOVERY,
6774	"2779 Read FCF (x%x) for updating "
6775	"roundrobin FCF failover bmask\n",
6776	acqe_fip->index);
6777	rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6778	}
6779
6780	/* If the FCF discovery is in progress, do nothing. */
6781	spin_lock_irq(lock: &phba->hbalock);
6782	if (phba->hba_flag & FCF_TS_INPROG) {
6783	spin_unlock_irq(lock: &phba->hbalock);
6784	break;
6785	}
6786	/* If fast FCF failover rescan event is pending, do nothing */
6787	if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6788	spin_unlock_irq(lock: &phba->hbalock);
6789	break;
6790	}
6791
6792	/* If the FCF has been in discovered state, do nothing. */
6793	if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6794	spin_unlock_irq(lock: &phba->hbalock);
6795	break;
6796	}
6797	spin_unlock_irq(lock: &phba->hbalock);
6798
6799	/* Otherwise, scan the entire FCF table and re-discover SAN */
6800	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6801	"2770 Start FCF table scan per async FCF "
6802	"event, evt_tag:x%x, index:x%x\n",
6803	acqe_fip->event_tag, acqe_fip->index);
6804	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6805	LPFC_FCOE_FCF_GET_FIRST);
6806	if (rc)
6807	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6808	"2547 Issue FCF scan read FCF mailbox "
6809	"command failed (x%x)\n", rc);
6810	break;
6811
6812	case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6813	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6814	"2548 FCF Table full count 0x%x tag 0x%x\n",
6815	bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6816	acqe_fip->event_tag);
6817	break;
6818
6819	case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6820	phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6821	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6822	"2549 FCF (x%x) disconnected from network, "
6823	"tag:x%x\n", acqe_fip->index,
6824	acqe_fip->event_tag);
6825	/*
6826	* If we are in the middle of FCF failover process, clear
6827	* the corresponding FCF bit in the roundrobin bitmap.
6828	*/
6829	spin_lock_irq(lock: &phba->hbalock);
6830	if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6831	(phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6832	spin_unlock_irq(lock: &phba->hbalock);
6833	/* Update FLOGI FCF failover eligible FCF bmask */
6834	lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6835	break;
6836	}
6837	spin_unlock_irq(lock: &phba->hbalock);
6838
6839	/* If the event is not for currently used fcf do nothing */
6840	if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6841	break;
6842
6843	/*
6844	* Otherwise, request the port to rediscover the entire FCF
6845	* table for a fast recovery from case that the current FCF
6846	* is no longer valid as we are not in the middle of FCF
6847	* failover process already.
6848	*/
6849	spin_lock_irq(lock: &phba->hbalock);
6850	/* Mark the fast failover process in progress */
6851	phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6852	spin_unlock_irq(lock: &phba->hbalock);
6853
6854	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6855	"2771 Start FCF fast failover process due to "
6856	"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6857	"\n", acqe_fip->event_tag, acqe_fip->index);
6858	rc = lpfc_sli4_redisc_fcf_table(phba);
6859	if (rc) {
6860	lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6861	LOG_TRACE_EVENT,
6862	"2772 Issue FCF rediscover mailbox "
6863	"command failed, fail through to FCF "
6864	"dead event\n");
6865	spin_lock_irq(lock: &phba->hbalock);
6866	phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6867	spin_unlock_irq(lock: &phba->hbalock);
6868	/*
6869	* Last resort will fail over by treating this
6870	* as a link down to FCF registration.
6871	*/
6872	lpfc_sli4_fcf_dead_failthrough(phba);
6873	} else {
6874	/* Reset FCF roundrobin bmask for new discovery */
6875	lpfc_sli4_clear_fcf_rr_bmask(phba);
6876	/*
6877	* Handling fast FCF failover to a DEAD FCF event is
6878	* considered equalivant to receiving CVL to all vports.
6879	*/
6880	lpfc_sli4_perform_all_vport_cvl(phba);
6881	}
6882	break;
6883	case LPFC_FIP_EVENT_TYPE_CVL:
6884	phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6885	lpfc_printf_log(phba, KERN_ERR,
6886	LOG_TRACE_EVENT,
6887	"2718 Clear Virtual Link Received for VPI 0x%x"
6888	" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6889
6890	vport = lpfc_find_vport_by_vpid(phba,
6891	acqe_fip->index);
6892	ndlp = lpfc_sli4_perform_vport_cvl(vport);
6893	if (!ndlp)
6894	break;
6895	active_vlink_present = 0;
6896
6897	vports = lpfc_create_vport_work_array(phba);
6898	if (vports) {
6899	for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6900	i++) {
6901	if (!test_bit(FC_VPORT_CVL_RCVD,
6902	&vports[i]->fc_flag) &&
6903	vports[i]->port_state > LPFC_FDISC) {
6904	active_vlink_present = 1;
6905	break;
6906	}
6907	}
6908	lpfc_destroy_vport_work_array(phba, vports);
6909	}
6910
6911	/*
6912	* Don't re-instantiate if vport is marked for deletion.
6913	* If we are here first then vport_delete is going to wait
6914	* for discovery to complete.
6915	*/
6916	if (!test_bit(FC_UNLOADING, &vport->load_flag) &&
6917	active_vlink_present) {
6918	/*
6919	* If there are other active VLinks present,
6920	* re-instantiate the Vlink using FDISC.
6921	*/
6922	mod_timer(timer: &ndlp->nlp_delayfunc,
6923	expires: jiffies + msecs_to_jiffies(m: 1000));
6924	spin_lock_irq(lock: &ndlp->lock);
6925	ndlp->nlp_flag |= NLP_DELAY_TMO;
6926	spin_unlock_irq(lock: &ndlp->lock);
6927	ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6928	vport->port_state = LPFC_FDISC;
6929	} else {
6930	/*
6931	* Otherwise, we request port to rediscover
6932	* the entire FCF table for a fast recovery
6933	* from possible case that the current FCF
6934	* is no longer valid if we are not already
6935	* in the FCF failover process.
6936	*/
6937	spin_lock_irq(lock: &phba->hbalock);
6938	if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6939	spin_unlock_irq(lock: &phba->hbalock);
6940	break;
6941	}
6942	/* Mark the fast failover process in progress */
6943	phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6944	spin_unlock_irq(lock: &phba->hbalock);
6945	lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6946	LOG_DISCOVERY,
6947	"2773 Start FCF failover per CVL, "
6948	"evt_tag:x%x\n", acqe_fip->event_tag);
6949	rc = lpfc_sli4_redisc_fcf_table(phba);
6950	if (rc) {
6951	lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6952	LOG_TRACE_EVENT,
6953	"2774 Issue FCF rediscover "
6954	"mailbox command failed, "
6955	"through to CVL event\n");
6956	spin_lock_irq(lock: &phba->hbalock);
6957	phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6958	spin_unlock_irq(lock: &phba->hbalock);
6959	/*
6960	* Last resort will be re-try on the
6961	* the current registered FCF entry.
6962	*/
6963	lpfc_retry_pport_discovery(phba);
6964	} else
6965	/*
6966	* Reset FCF roundrobin bmask for new
6967	* discovery.
6968	*/
6969	lpfc_sli4_clear_fcf_rr_bmask(phba);
6970	}
6971	break;
6972	default:
6973	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6974	"0288 Unknown FCoE event type 0x%x event tag "
6975	"0x%x\n", event_type, acqe_fip->event_tag);
6976	break;
6977	}
6978	}
6979
6980	/**
6981	* lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6982	* @phba: pointer to lpfc hba data structure.
6983	* @acqe_dcbx: pointer to the async dcbx completion queue entry.
6984	*
6985	* This routine is to handle the SLI4 asynchronous dcbx event.
6986	**/
6987	static void
6988	lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6989	struct lpfc_acqe_dcbx *acqe_dcbx)
6990	{
6991	phba->fc_eventTag = acqe_dcbx->event_tag;
6992	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6993	"0290 The SLI4 DCBX asynchronous event is not "
6994	"handled yet\n");
6995	}
6996
6997	/**
6998	* lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6999	* @phba: pointer to lpfc hba data structure.
7000	* @acqe_grp5: pointer to the async grp5 completion queue entry.
7001	*
7002	* This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
7003	* is an asynchronous notified of a logical link speed change. The Port
7004	* reports the logical link speed in units of 10Mbps.
7005	**/
7006	static void
7007	lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
7008	struct lpfc_acqe_grp5 *acqe_grp5)
7009	{
7010	uint16_t prev_ll_spd;
7011
7012	phba->fc_eventTag = acqe_grp5->event_tag;
7013	phba->fcoe_eventtag = acqe_grp5->event_tag;
7014	prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
7015	phba->sli4_hba.link_state.logical_speed =
7016	(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
7017	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7018	"2789 GRP5 Async Event: Updating logical link speed "
7019	"from %dMbps to %dMbps\n", prev_ll_spd,
7020	phba->sli4_hba.link_state.logical_speed);
7021	}
7022
7023	/**
7024	* lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
7025	* @phba: pointer to lpfc hba data structure.
7026	*
7027	* This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
7028	* is an asynchronous notification of a request to reset CM stats.
7029	**/
7030	static void
7031	lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
7032	{
7033	if (!phba->cgn_i)
7034	return;
7035	lpfc_init_congestion_stat(phba);
7036	}
7037
7038	/**
7039	* lpfc_cgn_params_val - Validate FW congestion parameters.
7040	* @phba: pointer to lpfc hba data structure.
7041	* @p_cfg_param: pointer to FW provided congestion parameters.
7042	*
7043	* This routine validates the congestion parameters passed
7044	* by the FW to the driver via an ACQE event.
7045	**/
7046	static void
7047	lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
7048	{
7049	spin_lock_irq(lock: &phba->hbalock);
7050
7051	if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
7052	LPFC_CFG_MONITOR)) {
7053	lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
7054	"6225 CMF mode param out of range: %d\n",
7055	p_cfg_param->cgn_param_mode);
7056	p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
7057	}
7058
7059	spin_unlock_irq(lock: &phba->hbalock);
7060	}
7061
7062	static const char * const lpfc_cmf_mode_to_str[] = {
7063	"OFF",
7064	"MANAGED",
7065	"MONITOR",
7066	};
7067
7068	/**
7069	* lpfc_cgn_params_parse - Process a FW cong parm change event
7070	* @phba: pointer to lpfc hba data structure.
7071	* @p_cgn_param: pointer to a data buffer with the FW cong params.
7072	* @len: the size of pdata in bytes.
7073	*
7074	* This routine validates the congestion management buffer signature
7075	* from the FW, validates the contents and makes corrections for
7076	* valid, in-range values. If the signature magic is correct and
7077	* after parameter validation, the contents are copied to the driver's
7078	* @phba structure. If the magic is incorrect, an error message is
7079	* logged.
7080	**/
7081	static void
7082	lpfc_cgn_params_parse(struct lpfc_hba *phba,
7083	struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7084	{
7085	struct lpfc_cgn_info *cp;
7086	uint32_t crc, oldmode;
7087	char acr_string[4] = {0};
7088
7089	/* Make sure the FW has encoded the correct magic number to
7090	* validate the congestion parameter in FW memory.
7091	*/
7092	if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7093	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7094	"4668 FW cgn parm buffer data: "
7095	"magic 0x%x version %d mode %d "
7096	"level0 %d level1 %d "
7097	"level2 %d byte13 %d "
7098	"byte14 %d byte15 %d "
7099	"byte11 %d byte12 %d activeMode %d\n",
7100	p_cgn_param->cgn_param_magic,
7101	p_cgn_param->cgn_param_version,
7102	p_cgn_param->cgn_param_mode,
7103	p_cgn_param->cgn_param_level0,
7104	p_cgn_param->cgn_param_level1,
7105	p_cgn_param->cgn_param_level2,
7106	p_cgn_param->byte13,
7107	p_cgn_param->byte14,
7108	p_cgn_param->byte15,
7109	p_cgn_param->byte11,
7110	p_cgn_param->byte12,
7111	phba->cmf_active_mode);
7112
7113	oldmode = phba->cmf_active_mode;
7114
7115	/* Any parameters out of range are corrected to defaults
7116	* by this routine. No need to fail.
7117	*/
7118	lpfc_cgn_params_val(phba, p_cfg_param: p_cgn_param);
7119
7120	/* Parameters are verified, move them into driver storage */
7121	spin_lock_irq(lock: &phba->hbalock);
7122	memcpy(&phba->cgn_p, p_cgn_param,
7123	sizeof(struct lpfc_cgn_param));
7124
7125	/* Update parameters in congestion info buffer now */
7126	if (phba->cgn_i) {
7127	cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7128	cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7129	cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7130	cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7131	cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7132	crc = lpfc_cgn_calc_crc32(bufp: cp, LPFC_CGN_INFO_SZ,
7133	LPFC_CGN_CRC32_SEED);
7134	cp->cgn_info_crc = cpu_to_le32(crc);
7135	}
7136	spin_unlock_irq(lock: &phba->hbalock);
7137
7138	phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7139
7140	switch (oldmode) {
7141	case LPFC_CFG_OFF:
7142	if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7143	/* Turning CMF on */
7144	lpfc_cmf_start(phba);
7145
7146	if (phba->link_state >= LPFC_LINK_UP) {
7147	phba->cgn_reg_fpin =
7148	phba->cgn_init_reg_fpin;
7149	phba->cgn_reg_signal =
7150	phba->cgn_init_reg_signal;
7151	lpfc_issue_els_edc(vport: phba->pport, retry: 0);
7152	}
7153	}
7154	break;
7155	case LPFC_CFG_MANAGED:
7156	switch (phba->cgn_p.cgn_param_mode) {
7157	case LPFC_CFG_OFF:
7158	/* Turning CMF off */
7159	lpfc_cmf_stop(phba);
7160	if (phba->link_state >= LPFC_LINK_UP)
7161	lpfc_issue_els_edc(vport: phba->pport, retry: 0);
7162	break;
7163	case LPFC_CFG_MONITOR:
7164	phba->cmf_max_bytes_per_interval =
7165	phba->cmf_link_byte_count;
7166
7167	/* Resume blocked IO - unblock on workqueue */
7168	queue_work(wq: phba->wq,
7169	work: &phba->unblock_request_work);
7170	break;
7171	}
7172	break;
7173	case LPFC_CFG_MONITOR:
7174	switch (phba->cgn_p.cgn_param_mode) {
7175	case LPFC_CFG_OFF:
7176	/* Turning CMF off */
7177	lpfc_cmf_stop(phba);
7178	if (phba->link_state >= LPFC_LINK_UP)
7179	lpfc_issue_els_edc(vport: phba->pport, retry: 0);
7180	break;
7181	case LPFC_CFG_MANAGED:
7182	lpfc_cmf_signal_init(phba);
7183	break;
7184	}
7185	break;
7186	}
7187	if (oldmode != LPFC_CFG_OFF ||
7188	oldmode != phba->cgn_p.cgn_param_mode) {
7189	if (phba->cgn_p.cgn_param_mode == LPFC_CFG_MANAGED)
7190	scnprintf(buf: acr_string, size: sizeof(acr_string), fmt: "%u",
7191	phba->cgn_p.cgn_param_level0);
7192	else
7193	scnprintf(buf: acr_string, size: sizeof(acr_string), fmt: "NA");
7194
7195	dev_info(&phba->pcidev->dev, "%d: "
7196	"4663 CMF: Mode %s acr %s\n",
7197	phba->brd_no,
7198	lpfc_cmf_mode_to_str
7199	[phba->cgn_p.cgn_param_mode],
7200	acr_string);
7201	}
7202	} else {
7203	lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7204	"4669 FW cgn parm buf wrong magic 0x%x "
7205	"version %d\n", p_cgn_param->cgn_param_magic,
7206	p_cgn_param->cgn_param_version);
7207	}
7208	}
7209
7210	/**
7211	* lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7212	* @phba: pointer to lpfc hba data structure.
7213	*
7214	* This routine issues a read_object mailbox command to
7215	* get the congestion management parameters from the FW
7216	* parses it and updates the driver maintained values.
7217	*
7218	* Returns
7219	* 0 if the object was empty
7220	* -Eval if an error was encountered
7221	* Count if bytes were read from object
7222	**/
7223	int
7224	lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7225	{
7226	int ret = 0;
7227	struct lpfc_cgn_param *p_cgn_param = NULL;
7228	u32 *pdata = NULL;
7229	u32 len = 0;
7230
7231	/* Find out if the FW has a new set of congestion parameters. */
7232	len = sizeof(struct lpfc_cgn_param);
7233	pdata = kzalloc(size: len, GFP_KERNEL);
7234	if (!pdata)
7235	return -ENOMEM;
7236	ret = lpfc_read_object(phba, s: (char *)LPFC_PORT_CFG_NAME,
7237	datap: pdata, len);
7238
7239	/* 0 means no data. A negative means error. A positive means
7240	* bytes were copied.
7241	*/
7242	if (!ret) {
7243	lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7244	"4670 CGN RD OBJ returns no data\n");
7245	goto rd_obj_err;
7246	} else if (ret < 0) {
7247	/* Some error. Just exit and return it to the caller.*/
7248	goto rd_obj_err;
7249	}
7250
7251	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7252	"6234 READ CGN PARAMS Successful %d\n", len);
7253
7254	/* Parse data pointer over len and update the phba congestion
7255	* parameters with values passed back. The receive rate values
7256	* may have been altered in FW, but take no action here.
7257	*/
7258	p_cgn_param = (struct lpfc_cgn_param *)pdata;
7259	lpfc_cgn_params_parse(phba, p_cgn_param, len);
7260
7261	rd_obj_err:
7262	kfree(objp: pdata);
7263	return ret;
7264	}
7265
7266	/**
7267	* lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7268	* @phba: pointer to lpfc hba data structure.
7269	*
7270	* The FW generated Async ACQE SLI event calls this routine when
7271	* the event type is an SLI Internal Port Event and the Event Code
7272	* indicates a change to the FW maintained congestion parameters.
7273	*
7274	* This routine executes a Read_Object mailbox call to obtain the
7275	* current congestion parameters maintained in FW and corrects
7276	* the driver's active congestion parameters.
7277	*
7278	* The acqe event is not passed because there is no further data
7279	* required.
7280	*
7281	* Returns nonzero error if event processing encountered an error.
7282	* Zero otherwise for success.
7283	**/
7284	static int
7285	lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7286	{
7287	int ret = 0;
7288
7289	if (!phba->sli4_hba.pc_sli4_params.cmf) {
7290	lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7291	"4664 Cgn Evt when E2E off. Drop event\n");
7292	return -EACCES;
7293	}
7294
7295	/* If the event is claiming an empty object, it's ok. A write
7296	* could have cleared it. Only error is a negative return
7297	* status.
7298	*/
7299	ret = lpfc_sli4_cgn_params_read(phba);
7300	if (ret < 0) {
7301	lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7302	"4667 Error reading Cgn Params (%d)\n",
7303	ret);
7304	} else if (!ret) {
7305	lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7306	"4673 CGN Event empty object.\n");
7307	}
7308	return ret;
7309	}
7310
7311	/**
7312	* lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7313	* @phba: pointer to lpfc hba data structure.
7314	*
7315	* This routine is invoked by the worker thread to process all the pending
7316	* SLI4 asynchronous events.
7317	**/
7318	void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7319	{
7320	struct lpfc_cq_event *cq_event;
7321	unsigned long iflags;
7322
7323	/* First, declare the async event has been handled */
7324	spin_lock_irqsave(&phba->hbalock, iflags);
7325	phba->hba_flag &= ~ASYNC_EVENT;
7326	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflags);
7327
7328	/* Now, handle all the async events */
7329	spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7330	while (!list_empty(head: &phba->sli4_hba.sp_asynce_work_queue)) {
7331	list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7332	cq_event, struct lpfc_cq_event, list);
7333	spin_unlock_irqrestore(lock: &phba->sli4_hba.asynce_list_lock,
7334	flags: iflags);
7335
7336	/* Process the asynchronous event */
7337	switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7338	case LPFC_TRAILER_CODE_LINK:
7339	lpfc_sli4_async_link_evt(phba,
7340	acqe_link: &cq_event->cqe.acqe_link);
7341	break;
7342	case LPFC_TRAILER_CODE_FCOE:
7343	lpfc_sli4_async_fip_evt(phba, acqe_fip: &cq_event->cqe.acqe_fip);
7344	break;
7345	case LPFC_TRAILER_CODE_DCBX:
7346	lpfc_sli4_async_dcbx_evt(phba,
7347	acqe_dcbx: &cq_event->cqe.acqe_dcbx);
7348	break;
7349	case LPFC_TRAILER_CODE_GRP5:
7350	lpfc_sli4_async_grp5_evt(phba,
7351	acqe_grp5: &cq_event->cqe.acqe_grp5);
7352	break;
7353	case LPFC_TRAILER_CODE_FC:
7354	lpfc_sli4_async_fc_evt(phba, acqe_fc: &cq_event->cqe.acqe_fc);
7355	break;
7356	case LPFC_TRAILER_CODE_SLI:
7357	lpfc_sli4_async_sli_evt(phba, acqe_sli: &cq_event->cqe.acqe_sli);
7358	break;
7359	default:
7360	lpfc_printf_log(phba, KERN_ERR,
7361	LOG_TRACE_EVENT,
7362	"1804 Invalid asynchronous event code: "
7363	"x%x\n", bf_get(lpfc_trailer_code,
7364	&cq_event->cqe.mcqe_cmpl));
7365	break;
7366	}
7367
7368	/* Free the completion event processed to the free pool */
7369	lpfc_sli4_cq_event_release(phba, cq_event);
7370	spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7371	}
7372	spin_unlock_irqrestore(lock: &phba->sli4_hba.asynce_list_lock, flags: iflags);
7373	}
7374
7375	/**
7376	* lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7377	* @phba: pointer to lpfc hba data structure.
7378	*
7379	* This routine is invoked by the worker thread to process FCF table
7380	* rediscovery pending completion event.
7381	**/
7382	void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7383	{
7384	int rc;
7385
7386	spin_lock_irq(lock: &phba->hbalock);
7387	/* Clear FCF rediscovery timeout event */
7388	phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7389	/* Clear driver fast failover FCF record flag */
7390	phba->fcf.failover_rec.flag = 0;
7391	/* Set state for FCF fast failover */
7392	phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7393	spin_unlock_irq(lock: &phba->hbalock);
7394
7395	/* Scan FCF table from the first entry to re-discover SAN */
7396	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7397	"2777 Start post-quiescent FCF table scan\n");
7398	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7399	if (rc)
7400	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7401	"2747 Issue FCF scan read FCF mailbox "
7402	"command failed 0x%x\n", rc);
7403	}
7404
7405	/**
7406	* lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7407	* @phba: pointer to lpfc hba data structure.
7408	* @dev_grp: The HBA PCI-Device group number.
7409	*
7410	* This routine is invoked to set up the per HBA PCI-Device group function
7411	* API jump table entries.
7412	*
7413	* Return: 0 if success, otherwise -ENODEV
7414	**/
7415	int
7416	lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7417	{
7418	int rc;
7419
7420	/* Set up lpfc PCI-device group */
7421	phba->pci_dev_grp = dev_grp;
7422
7423	/* The LPFC_PCI_DEV_OC uses SLI4 */
7424	if (dev_grp == LPFC_PCI_DEV_OC)
7425	phba->sli_rev = LPFC_SLI_REV4;
7426
7427	/* Set up device INIT API function jump table */
7428	rc = lpfc_init_api_table_setup(phba, dev_grp);
7429	if (rc)
7430	return -ENODEV;
7431	/* Set up SCSI API function jump table */
7432	rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7433	if (rc)
7434	return -ENODEV;
7435	/* Set up SLI API function jump table */
7436	rc = lpfc_sli_api_table_setup(phba, dev_grp);
7437	if (rc)
7438	return -ENODEV;
7439	/* Set up MBOX API function jump table */
7440	rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7441	if (rc)
7442	return -ENODEV;
7443
7444	return 0;
7445	}
7446
7447	/**
7448	* lpfc_log_intr_mode - Log the active interrupt mode
7449	* @phba: pointer to lpfc hba data structure.
7450	* @intr_mode: active interrupt mode adopted.
7451	*
7452	* This routine it invoked to log the currently used active interrupt mode
7453	* to the device.
7454	**/
7455	static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7456	{
7457	switch (intr_mode) {
7458	case 0:
7459	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7460	"0470 Enable INTx interrupt mode.\n");
7461	break;
7462	case 1:
7463	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7464	"0481 Enabled MSI interrupt mode.\n");
7465	break;
7466	case 2:
7467	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7468	"0480 Enabled MSI-X interrupt mode.\n");
7469	break;
7470	default:
7471	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7472	"0482 Illegal interrupt mode.\n");
7473	break;
7474	}
7475	return;
7476	}
7477
7478	/**
7479	* lpfc_enable_pci_dev - Enable a generic PCI device.
7480	* @phba: pointer to lpfc hba data structure.
7481	*
7482	* This routine is invoked to enable the PCI device that is common to all
7483	* PCI devices.
7484	*
7485	* Return codes
7486	* 0 - successful
7487	* other values - error
7488	**/
7489	static int
7490	lpfc_enable_pci_dev(struct lpfc_hba *phba)
7491	{
7492	struct pci_dev *pdev;
7493
7494	/* Obtain PCI device reference */
7495	if (!phba->pcidev)
7496	goto out_error;
7497	else
7498	pdev = phba->pcidev;
7499	/* Enable PCI device */
7500	if (pci_enable_device_mem(dev: pdev))
7501	goto out_error;
7502	/* Request PCI resource for the device */
7503	if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7504	goto out_disable_device;
7505	/* Set up device as PCI master and save state for EEH */
7506	pci_set_master(dev: pdev);
7507	pci_try_set_mwi(dev: pdev);
7508	pci_save_state(dev: pdev);
7509
7510	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7511	if (pci_is_pcie(dev: pdev))
7512	pdev->needs_freset = 1;
7513
7514	return 0;
7515
7516	out_disable_device:
7517	pci_disable_device(dev: pdev);
7518	out_error:
7519	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7520	"1401 Failed to enable pci device\n");
7521	return -ENODEV;
7522	}
7523
7524	/**
7525	* lpfc_disable_pci_dev - Disable a generic PCI device.
7526	* @phba: pointer to lpfc hba data structure.
7527	*
7528	* This routine is invoked to disable the PCI device that is common to all
7529	* PCI devices.
7530	**/
7531	static void
7532	lpfc_disable_pci_dev(struct lpfc_hba *phba)
7533	{
7534	struct pci_dev *pdev;
7535
7536	/* Obtain PCI device reference */
7537	if (!phba->pcidev)
7538	return;
7539	else
7540	pdev = phba->pcidev;
7541	/* Release PCI resource and disable PCI device */
7542	pci_release_mem_regions(pdev);
7543	pci_disable_device(dev: pdev);
7544
7545	return;
7546	}
7547
7548	/**
7549	* lpfc_reset_hba - Reset a hba
7550	* @phba: pointer to lpfc hba data structure.
7551	*
7552	* This routine is invoked to reset a hba device. It brings the HBA
7553	* offline, performs a board restart, and then brings the board back
7554	* online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7555	* on outstanding mailbox commands.
7556	**/
7557	void
7558	lpfc_reset_hba(struct lpfc_hba *phba)
7559	{
7560	int rc = 0;
7561
7562	/* If resets are disabled then set error state and return. */
7563	if (!phba->cfg_enable_hba_reset) {
7564	phba->link_state = LPFC_HBA_ERROR;
7565	return;
7566	}
7567
7568	/* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7569	if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7570	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7571	} else {
7572	if (test_bit(MBX_TMO_ERR, &phba->bit_flags)) {
7573	/* Perform a PCI function reset to start from clean */
7574	rc = lpfc_pci_function_reset(phba);
7575	lpfc_els_flush_all_cmd(phba);
7576	}
7577	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7578	lpfc_sli_flush_io_rings(phba);
7579	}
7580	lpfc_offline(phba);
7581	clear_bit(nr: MBX_TMO_ERR, addr: &phba->bit_flags);
7582	if (unlikely(rc)) {
7583	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7584	"8888 PCI function reset failed rc %x\n",
7585	rc);
7586	} else {
7587	lpfc_sli_brdrestart(phba);
7588	lpfc_online(phba);
7589	lpfc_unblock_mgmt_io(phba);
7590	}
7591	}
7592
7593	/**
7594	* lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7595	* @phba: pointer to lpfc hba data structure.
7596	*
7597	* This function enables the PCI SR-IOV virtual functions to a physical
7598	* function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7599	* enable the number of virtual functions to the physical function. As
7600	* not all devices support SR-IOV, the return code from the pci_enable_sriov()
7601	* API call does not considered as an error condition for most of the device.
7602	**/
7603	uint16_t
7604	lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7605	{
7606	struct pci_dev *pdev = phba->pcidev;
7607	uint16_t nr_virtfn;
7608	int pos;
7609
7610	pos = pci_find_ext_capability(dev: pdev, PCI_EXT_CAP_ID_SRIOV);
7611	if (pos == 0)
7612	return 0;
7613
7614	pci_read_config_word(dev: pdev, where: pos + PCI_SRIOV_TOTAL_VF, val: &nr_virtfn);
7615	return nr_virtfn;
7616	}
7617
7618	/**
7619	* lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7620	* @phba: pointer to lpfc hba data structure.
7621	* @nr_vfn: number of virtual functions to be enabled.
7622	*
7623	* This function enables the PCI SR-IOV virtual functions to a physical
7624	* function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7625	* enable the number of virtual functions to the physical function. As
7626	* not all devices support SR-IOV, the return code from the pci_enable_sriov()
7627	* API call does not considered as an error condition for most of the device.
7628	**/
7629	int
7630	lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7631	{
7632	struct pci_dev *pdev = phba->pcidev;
7633	uint16_t max_nr_vfn;
7634	int rc;
7635
7636	max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7637	if (nr_vfn > max_nr_vfn) {
7638	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7639	"3057 Requested vfs (%d) greater than "
7640	"supported vfs (%d)", nr_vfn, max_nr_vfn);
7641	return -EINVAL;
7642	}
7643
7644	rc = pci_enable_sriov(dev: pdev, nr_virtfn: nr_vfn);
7645	if (rc) {
7646	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7647	"2806 Failed to enable sriov on this device "
7648	"with vfn number nr_vf:%d, rc:%d\n",
7649	nr_vfn, rc);
7650	} else
7651	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7652	"2807 Successful enable sriov on this device "
7653	"with vfn number nr_vf:%d\n", nr_vfn);
7654	return rc;
7655	}
7656
7657	static void
7658	lpfc_unblock_requests_work(struct work_struct *work)
7659	{
7660	struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7661	unblock_request_work);
7662
7663	lpfc_unblock_requests(phba);
7664	}
7665
7666	/**
7667	* lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7668	* @phba: pointer to lpfc hba data structure.
7669	*
7670	* This routine is invoked to set up the driver internal resources before the
7671	* device specific resource setup to support the HBA device it attached to.
7672	*
7673	* Return codes
7674	* 0 - successful
7675	* other values - error
7676	**/
7677	static int
7678	lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7679	{
7680	struct lpfc_sli *psli = &phba->sli;
7681
7682	/*
7683	* Driver resources common to all SLI revisions
7684	*/
7685	atomic_set(v: &phba->fast_event_count, i: 0);
7686	atomic_set(v: &phba->dbg_log_idx, i: 0);
7687	atomic_set(v: &phba->dbg_log_cnt, i: 0);
7688	atomic_set(v: &phba->dbg_log_dmping, i: 0);
7689	spin_lock_init(&phba->hbalock);
7690
7691	/* Initialize port_list spinlock */
7692	spin_lock_init(&phba->port_list_lock);
7693	INIT_LIST_HEAD(list: &phba->port_list);
7694
7695	INIT_LIST_HEAD(list: &phba->work_list);
7696
7697	/* Initialize the wait queue head for the kernel thread */
7698	init_waitqueue_head(&phba->work_waitq);
7699
7700	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7701	"1403 Protocols supported %s %s %s\n",
7702	((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7703	"SCSI" : " "),
7704	((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7705	"NVME" : " "),
7706	(phba->nvmet_support ? "NVMET" : " "));
7707
7708	/* ras_fwlog state */
7709	spin_lock_init(&phba->ras_fwlog_lock);
7710
7711	/* Initialize the IO buffer list used by driver for SLI3 SCSI */
7712	spin_lock_init(&phba->scsi_buf_list_get_lock);
7713	INIT_LIST_HEAD(list: &phba->lpfc_scsi_buf_list_get);
7714	spin_lock_init(&phba->scsi_buf_list_put_lock);
7715	INIT_LIST_HEAD(list: &phba->lpfc_scsi_buf_list_put);
7716
7717	/* Initialize the fabric iocb list */
7718	INIT_LIST_HEAD(list: &phba->fabric_iocb_list);
7719
7720	/* Initialize list to save ELS buffers */
7721	INIT_LIST_HEAD(list: &phba->elsbuf);
7722
7723	/* Initialize FCF connection rec list */
7724	INIT_LIST_HEAD(list: &phba->fcf_conn_rec_list);
7725
7726	/* Initialize OAS configuration list */
7727	spin_lock_init(&phba->devicelock);
7728	INIT_LIST_HEAD(list: &phba->luns);
7729
7730	/* MBOX heartbeat timer */
7731	timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7732	/* Fabric block timer */
7733	timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7734	/* EA polling mode timer */
7735	timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7736	/* Heartbeat timer */
7737	timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7738
7739	INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7740
7741	INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7742	lpfc_idle_stat_delay_work);
7743	INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7744	return 0;
7745	}
7746
7747	/**
7748	* lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7749	* @phba: pointer to lpfc hba data structure.
7750	*
7751	* This routine is invoked to set up the driver internal resources specific to
7752	* support the SLI-3 HBA device it attached to.
7753	*
7754	* Return codes
7755	* 0 - successful
7756	* other values - error
7757	**/
7758	static int
7759	lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7760	{
7761	int rc, entry_sz;
7762
7763	/*
7764	* Initialize timers used by driver
7765	*/
7766
7767	/* FCP polling mode timer */
7768	timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7769
7770	/* Host attention work mask setup */
7771	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7772	phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7773
7774	/* Get all the module params for configuring this host */
7775	lpfc_get_cfgparam(phba);
7776	/* Set up phase-1 common device driver resources */
7777
7778	rc = lpfc_setup_driver_resource_phase1(phba);
7779	if (rc)
7780	return -ENODEV;
7781
7782	if (!phba->sli.sli3_ring)
7783	phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7784	size: sizeof(struct lpfc_sli_ring),
7785	GFP_KERNEL);
7786	if (!phba->sli.sli3_ring)
7787	return -ENOMEM;
7788
7789	/*
7790	* Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7791	* used to create the sg_dma_buf_pool must be dynamically calculated.
7792	*/
7793
7794	if (phba->sli_rev == LPFC_SLI_REV4)
7795	entry_sz = sizeof(struct sli4_sge);
7796	else
7797	entry_sz = sizeof(struct ulp_bde64);
7798
7799	/* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7800	if (phba->cfg_enable_bg) {
7801	/*
7802	* The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7803	* the FCP rsp, and a BDE for each. Sice we have no control
7804	* over how many protection data segments the SCSI Layer
7805	* will hand us (ie: there could be one for every block
7806	* in the IO), we just allocate enough BDEs to accomidate
7807	* our max amount and we need to limit lpfc_sg_seg_cnt to
7808	* minimize the risk of running out.
7809	*/
7810	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7811	sizeof(struct fcp_rsp) +
7812	(LPFC_MAX_SG_SEG_CNT * entry_sz);
7813
7814	if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7815	phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7816
7817	/* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7818	phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7819	} else {
7820	/*
7821	* The scsi_buf for a regular I/O will hold the FCP cmnd,
7822	* the FCP rsp, a BDE for each, and a BDE for up to
7823	* cfg_sg_seg_cnt data segments.
7824	*/
7825	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7826	sizeof(struct fcp_rsp) +
7827	((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7828
7829	/* Total BDEs in BPL for scsi_sg_list */
7830	phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7831	}
7832
7833	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7834	"9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7835	phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7836	phba->cfg_total_seg_cnt);
7837
7838	phba->max_vpi = LPFC_MAX_VPI;
7839	/* This will be set to correct value after config_port mbox */
7840	phba->max_vports = 0;
7841
7842	/*
7843	* Initialize the SLI Layer to run with lpfc HBAs.
7844	*/
7845	lpfc_sli_setup(phba);
7846	lpfc_sli_queue_init(phba);
7847
7848	/* Allocate device driver memory */
7849	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7850	return -ENOMEM;
7851
7852	phba->lpfc_sg_dma_buf_pool =
7853	dma_pool_create(name: "lpfc_sg_dma_buf_pool",
7854	dev: &phba->pcidev->dev, size: phba->cfg_sg_dma_buf_size,
7855	BPL_ALIGN_SZ, allocation: 0);
7856
7857	if (!phba->lpfc_sg_dma_buf_pool)
7858	goto fail_free_mem;
7859
7860	phba->lpfc_cmd_rsp_buf_pool =
7861	dma_pool_create(name: "lpfc_cmd_rsp_buf_pool",
7862	dev: &phba->pcidev->dev,
7863	size: sizeof(struct fcp_cmnd) +
7864	sizeof(struct fcp_rsp),
7865	BPL_ALIGN_SZ, allocation: 0);
7866
7867	if (!phba->lpfc_cmd_rsp_buf_pool)
7868	goto fail_free_dma_buf_pool;
7869
7870	/*
7871	* Enable sr-iov virtual functions if supported and configured
7872	* through the module parameter.
7873	*/
7874	if (phba->cfg_sriov_nr_virtfn > 0) {
7875	rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7876	nr_vfn: phba->cfg_sriov_nr_virtfn);
7877	if (rc) {
7878	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7879	"2808 Requested number of SR-IOV "
7880	"virtual functions (%d) is not "
7881	"supported\n",
7882	phba->cfg_sriov_nr_virtfn);
7883	phba->cfg_sriov_nr_virtfn = 0;
7884	}
7885	}
7886
7887	return 0;
7888
7889	fail_free_dma_buf_pool:
7890	dma_pool_destroy(pool: phba->lpfc_sg_dma_buf_pool);
7891	phba->lpfc_sg_dma_buf_pool = NULL;
7892	fail_free_mem:
7893	lpfc_mem_free(phba);
7894	return -ENOMEM;
7895	}
7896
7897	/**
7898	* lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7899	* @phba: pointer to lpfc hba data structure.
7900	*
7901	* This routine is invoked to unset the driver internal resources set up
7902	* specific for supporting the SLI-3 HBA device it attached to.
7903	**/
7904	static void
7905	lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7906	{
7907	/* Free device driver memory allocated */
7908	lpfc_mem_free_all(phba);
7909
7910	return;
7911	}
7912
7913	/**
7914	* lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7915	* @phba: pointer to lpfc hba data structure.
7916	*
7917	* This routine is invoked to set up the driver internal resources specific to
7918	* support the SLI-4 HBA device it attached to.
7919	*
7920	* Return codes
7921	* 0 - successful
7922	* other values - error
7923	**/
7924	static int
7925	lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7926	{
7927	LPFC_MBOXQ_t *mboxq;
7928	MAILBOX_t *mb;
7929	int rc, i, max_buf_size;
7930	int longs;
7931	int extra;
7932	uint64_t wwn;
7933	u32 if_type;
7934	u32 if_fam;
7935
7936	phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7937	phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7938	phba->sli4_hba.curr_disp_cpu = 0;
7939
7940	/* Get all the module params for configuring this host */
7941	lpfc_get_cfgparam(phba);
7942
7943	/* Set up phase-1 common device driver resources */
7944	rc = lpfc_setup_driver_resource_phase1(phba);
7945	if (rc)
7946	return -ENODEV;
7947
7948	/* Before proceed, wait for POST done and device ready */
7949	rc = lpfc_sli4_post_status_check(phba);
7950	if (rc)
7951	return -ENODEV;
7952
7953	/* Allocate all driver workqueues here */
7954
7955	/* The lpfc_wq workqueue for deferred irq use */
7956	phba->wq = alloc_workqueue(fmt: "lpfc_wq", flags: WQ_MEM_RECLAIM, max_active: 0);
7957	if (!phba->wq)
7958	return -ENOMEM;
7959
7960	/*
7961	* Initialize timers used by driver
7962	*/
7963
7964	timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7965
7966	/* FCF rediscover timer */
7967	timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7968
7969	/* CMF congestion timer */
7970	hrtimer_init(timer: &phba->cmf_timer, CLOCK_MONOTONIC, mode: HRTIMER_MODE_REL);
7971	phba->cmf_timer.function = lpfc_cmf_timer;
7972	/* CMF 1 minute stats collection timer */
7973	hrtimer_init(timer: &phba->cmf_stats_timer, CLOCK_MONOTONIC, mode: HRTIMER_MODE_REL);
7974	phba->cmf_stats_timer.function = lpfc_cmf_stats_timer;
7975
7976	/*
7977	* Control structure for handling external multi-buffer mailbox
7978	* command pass-through.
7979	*/
7980	memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7981	sizeof(struct lpfc_mbox_ext_buf_ctx));
7982	INIT_LIST_HEAD(list: &phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7983
7984	phba->max_vpi = LPFC_MAX_VPI;
7985
7986	/* This will be set to correct value after the read_config mbox */
7987	phba->max_vports = 0;
7988
7989	/* Program the default value of vlan_id and fc_map */
7990	phba->valid_vlan = 0;
7991	phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7992	phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7993	phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7994
7995	/*
7996	* For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7997	* we will associate a new ring, for each EQ/CQ/WQ tuple.
7998	* The WQ create will allocate the ring.
7999	*/
8000
8001	/* Initialize buffer queue management fields */
8002	INIT_LIST_HEAD(list: &phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
8003	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
8004	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
8005
8006	/* for VMID idle timeout if VMID is enabled */
8007	if (lpfc_is_vmid_enabled(phba))
8008	timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
8009
8010	/*
8011	* Initialize the SLI Layer to run with lpfc SLI4 HBAs.
8012	*/
8013	/* Initialize the Abort buffer list used by driver */
8014	spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
8015	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_abts_io_buf_list);
8016
8017	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8018	/* Initialize the Abort nvme buffer list used by driver */
8019	spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
8020	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8021	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_nvmet_io_wait_list);
8022	spin_lock_init(&phba->sli4_hba.t_active_list_lock);
8023	INIT_LIST_HEAD(list: &phba->sli4_hba.t_active_ctx_list);
8024	}
8025
8026	/* This abort list used by worker thread */
8027	spin_lock_init(&phba->sli4_hba.sgl_list_lock);
8028	spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
8029	spin_lock_init(&phba->sli4_hba.asynce_list_lock);
8030	spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
8031
8032	/*
8033	* Initialize driver internal slow-path work queues
8034	*/
8035
8036	/* Driver internel slow-path CQ Event pool */
8037	INIT_LIST_HEAD(list: &phba->sli4_hba.sp_cqe_event_pool);
8038	/* Response IOCB work queue list */
8039	INIT_LIST_HEAD(list: &phba->sli4_hba.sp_queue_event);
8040	/* Asynchronous event CQ Event work queue list */
8041	INIT_LIST_HEAD(list: &phba->sli4_hba.sp_asynce_work_queue);
8042	/* Slow-path XRI aborted CQ Event work queue list */
8043	INIT_LIST_HEAD(list: &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8044	/* Receive queue CQ Event work queue list */
8045	INIT_LIST_HEAD(list: &phba->sli4_hba.sp_unsol_work_queue);
8046
8047	/* Initialize extent block lists. */
8048	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_rpi_blk_list);
8049	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_xri_blk_list);
8050	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_vfi_blk_list);
8051	INIT_LIST_HEAD(list: &phba->lpfc_vpi_blk_list);
8052
8053	/* Initialize mboxq lists. If the early init routines fail
8054	* these lists need to be correctly initialized.
8055	*/
8056	INIT_LIST_HEAD(list: &phba->sli.mboxq);
8057	INIT_LIST_HEAD(list: &phba->sli.mboxq_cmpl);
8058
8059	/* initialize optic_state to 0xFF */
8060	phba->sli4_hba.lnk_info.optic_state = 0xff;
8061
8062	/* Allocate device driver memory */
8063	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
8064	if (rc)
8065	goto out_destroy_workqueue;
8066
8067	/* IF Type 2 ports get initialized now. */
8068	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
8069	LPFC_SLI_INTF_IF_TYPE_2) {
8070	rc = lpfc_pci_function_reset(phba);
8071	if (unlikely(rc)) {
8072	rc = -ENODEV;
8073	goto out_free_mem;
8074	}
8075	phba->temp_sensor_support = 1;
8076	}
8077
8078	/* Create the bootstrap mailbox command */
8079	rc = lpfc_create_bootstrap_mbox(phba);
8080	if (unlikely(rc))
8081	goto out_free_mem;
8082
8083	/* Set up the host's endian order with the device. */
8084	rc = lpfc_setup_endian_order(phba);
8085	if (unlikely(rc))
8086	goto out_free_bsmbx;
8087
8088	/* Set up the hba's configuration parameters. */
8089	rc = lpfc_sli4_read_config(phba);
8090	if (unlikely(rc))
8091	goto out_free_bsmbx;
8092
8093	if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
8094	/* Right now the link is down, if FA-PWWN is configured the
8095	* firmware will try FLOGI before the driver gets a link up.
8096	* If it fails, the driver should get a MISCONFIGURED async
8097	* event which will clear this flag. The only notification
8098	* the driver gets is if it fails, if it succeeds there is no
8099	* notification given. Assume success.
8100	*/
8101	phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
8102	}
8103
8104	rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8105	if (unlikely(rc))
8106	goto out_free_bsmbx;
8107
8108	/* IF Type 0 ports get initialized now. */
8109	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8110	LPFC_SLI_INTF_IF_TYPE_0) {
8111	rc = lpfc_pci_function_reset(phba);
8112	if (unlikely(rc))
8113	goto out_free_bsmbx;
8114	}
8115
8116	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool,
8117	GFP_KERNEL);
8118	if (!mboxq) {
8119	rc = -ENOMEM;
8120	goto out_free_bsmbx;
8121	}
8122
8123	/* Check for NVMET being configured */
8124	phba->nvmet_support = 0;
8125	if (lpfc_enable_nvmet_cnt) {
8126
8127	/* First get WWN of HBA instance */
8128	lpfc_read_nv(phba, mboxq);
8129	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8130	if (rc != MBX_SUCCESS) {
8131	lpfc_printf_log(phba, KERN_ERR,
8132	LOG_TRACE_EVENT,
8133	"6016 Mailbox failed , mbxCmd x%x "
8134	"READ_NV, mbxStatus x%x\n",
8135	bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8136	bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8137	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
8138	rc = -EIO;
8139	goto out_free_bsmbx;
8140	}
8141	mb = &mboxq->u.mb;
8142	memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8143	sizeof(uint64_t));
8144	wwn = cpu_to_be64(wwn);
8145	phba->sli4_hba.wwnn.u.name = wwn;
8146	memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8147	sizeof(uint64_t));
8148	/* wwn is WWPN of HBA instance */
8149	wwn = cpu_to_be64(wwn);
8150	phba->sli4_hba.wwpn.u.name = wwn;
8151
8152	/* Check to see if it matches any module parameter */
8153	for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8154	if (wwn == lpfc_enable_nvmet[i]) {
8155	#if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8156	if (lpfc_nvmet_mem_alloc(phba))
8157	break;
8158
8159	phba->nvmet_support = 1; /* a match */
8160
8161	lpfc_printf_log(phba, KERN_ERR,
8162	LOG_TRACE_EVENT,
8163	"6017 NVME Target %016llx\n",
8164	wwn);
8165	#else
8166	lpfc_printf_log(phba, KERN_ERR,
8167	LOG_TRACE_EVENT,
8168	"6021 Can't enable NVME Target."
8169	" NVME_TARGET_FC infrastructure"
8170	" is not in kernel\n");
8171	#endif
8172	/* Not supported for NVMET */
8173	phba->cfg_xri_rebalancing = 0;
8174	if (phba->irq_chann_mode == NHT_MODE) {
8175	phba->cfg_irq_chann =
8176	phba->sli4_hba.num_present_cpu;
8177	phba->cfg_hdw_queue =
8178	phba->sli4_hba.num_present_cpu;
8179	phba->irq_chann_mode = NORMAL_MODE;
8180	}
8181	break;
8182	}
8183	}
8184	}
8185
8186	lpfc_nvme_mod_param_dep(phba);
8187
8188	/*
8189	* Get sli4 parameters that override parameters from Port capabilities.
8190	* If this call fails, it isn't critical unless the SLI4 parameters come
8191	* back in conflict.
8192	*/
8193	rc = lpfc_get_sli4_parameters(phba, mboxq);
8194	if (rc) {
8195	if_type = bf_get(lpfc_sli_intf_if_type,
8196	&phba->sli4_hba.sli_intf);
8197	if_fam = bf_get(lpfc_sli_intf_sli_family,
8198	&phba->sli4_hba.sli_intf);
8199	if (phba->sli4_hba.extents_in_use &&
8200	phba->sli4_hba.rpi_hdrs_in_use) {
8201	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8202	"2999 Unsupported SLI4 Parameters "
8203	"Extents and RPI headers enabled.\n");
8204	if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8205	if_fam == LPFC_SLI_INTF_FAMILY_BE2) {
8206	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
8207	rc = -EIO;
8208	goto out_free_bsmbx;
8209	}
8210	}
8211	if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8212	if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8213	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
8214	rc = -EIO;
8215	goto out_free_bsmbx;
8216	}
8217	}
8218
8219	/*
8220	* 1 for cmd, 1 for rsp, NVME adds an extra one
8221	* for boundary conditions in its max_sgl_segment template.
8222	*/
8223	extra = 2;
8224	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8225	extra++;
8226
8227	/*
8228	* It doesn't matter what family our adapter is in, we are
8229	* limited to 2 Pages, 512 SGEs, for our SGL.
8230	* There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8231	*/
8232	max_buf_size = (2 * SLI4_PAGE_SIZE);
8233
8234	/*
8235	* Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8236	* used to create the sg_dma_buf_pool must be calculated.
8237	*/
8238	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8239	/* Both cfg_enable_bg and cfg_external_dif code paths */
8240
8241	/*
8242	* The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8243	* the FCP rsp, and a SGE. Sice we have no control
8244	* over how many protection segments the SCSI Layer
8245	* will hand us (ie: there could be one for every block
8246	* in the IO), just allocate enough SGEs to accomidate
8247	* our max amount and we need to limit lpfc_sg_seg_cnt
8248	* to minimize the risk of running out.
8249	*/
8250	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8251	sizeof(struct fcp_rsp) + max_buf_size;
8252
8253	/* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8254	phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8255
8256	/*
8257	* If supporting DIF, reduce the seg count for scsi to
8258	* allow room for the DIF sges.
8259	*/
8260	if (phba->cfg_enable_bg &&
8261	phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8262	phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8263	else
8264	phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8265
8266	} else {
8267	/*
8268	* The scsi_buf for a regular I/O holds the FCP cmnd,
8269	* the FCP rsp, a SGE for each, and a SGE for up to
8270	* cfg_sg_seg_cnt data segments.
8271	*/
8272	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8273	sizeof(struct fcp_rsp) +
8274	((phba->cfg_sg_seg_cnt + extra) *
8275	sizeof(struct sli4_sge));
8276
8277	/* Total SGEs for scsi_sg_list */
8278	phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8279	phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8280
8281	/*
8282	* NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8283	* need to post 1 page for the SGL.
8284	*/
8285	}
8286
8287	if (phba->cfg_xpsgl && !phba->nvmet_support)
8288	phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8289	else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
8290	phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8291	else
8292	phba->cfg_sg_dma_buf_size =
8293	SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8294
8295	phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8296	sizeof(struct sli4_sge);
8297
8298	/* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8299	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8300	if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8301	lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8302	"6300 Reducing NVME sg segment "
8303	"cnt to %d\n",
8304	LPFC_MAX_NVME_SEG_CNT);
8305	phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8306	} else
8307	phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8308	}
8309
8310	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8311	"9087 sg_seg_cnt:%d dmabuf_size:%d "
8312	"total:%d scsi:%d nvme:%d\n",
8313	phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8314	phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt,
8315	phba->cfg_nvme_seg_cnt);
8316
8317	if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8318	i = phba->cfg_sg_dma_buf_size;
8319	else
8320	i = SLI4_PAGE_SIZE;
8321
8322	phba->lpfc_sg_dma_buf_pool =
8323	dma_pool_create(name: "lpfc_sg_dma_buf_pool",
8324	dev: &phba->pcidev->dev,
8325	size: phba->cfg_sg_dma_buf_size,
8326	align: i, allocation: 0);
8327	if (!phba->lpfc_sg_dma_buf_pool) {
8328	rc = -ENOMEM;
8329	goto out_free_bsmbx;
8330	}
8331
8332	phba->lpfc_cmd_rsp_buf_pool =
8333	dma_pool_create(name: "lpfc_cmd_rsp_buf_pool",
8334	dev: &phba->pcidev->dev,
8335	size: sizeof(struct fcp_cmnd) +
8336	sizeof(struct fcp_rsp),
8337	align: i, allocation: 0);
8338	if (!phba->lpfc_cmd_rsp_buf_pool) {
8339	rc = -ENOMEM;
8340	goto out_free_sg_dma_buf;
8341	}
8342
8343	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
8344
8345	/* Verify OAS is supported */
8346	lpfc_sli4_oas_verify(phba);
8347
8348	/* Verify RAS support on adapter */
8349	lpfc_sli4_ras_init(phba);
8350
8351	/* Verify all the SLI4 queues */
8352	rc = lpfc_sli4_queue_verify(phba);
8353	if (rc)
8354	goto out_free_cmd_rsp_buf;
8355
8356	/* Create driver internal CQE event pool */
8357	rc = lpfc_sli4_cq_event_pool_create(phba);
8358	if (rc)
8359	goto out_free_cmd_rsp_buf;
8360
8361	/* Initialize sgl lists per host */
8362	lpfc_init_sgl_list(phba);
8363
8364	/* Allocate and initialize active sgl array */
8365	rc = lpfc_init_active_sgl_array(phba);
8366	if (rc) {
8367	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8368	"1430 Failed to initialize sgl list.\n");
8369	goto out_destroy_cq_event_pool;
8370	}
8371	rc = lpfc_sli4_init_rpi_hdrs(phba);
8372	if (rc) {
8373	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8374	"1432 Failed to initialize rpi headers.\n");
8375	goto out_free_active_sgl;
8376	}
8377
8378	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8379	longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8380	phba->fcf.fcf_rr_bmask = kcalloc(n: longs, size: sizeof(unsigned long),
8381	GFP_KERNEL);
8382	if (!phba->fcf.fcf_rr_bmask) {
8383	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8384	"2759 Failed allocate memory for FCF round "
8385	"robin failover bmask\n");
8386	rc = -ENOMEM;
8387	goto out_remove_rpi_hdrs;
8388	}
8389
8390	phba->sli4_hba.hba_eq_hdl = kcalloc(n: phba->cfg_irq_chann,
8391	size: sizeof(struct lpfc_hba_eq_hdl),
8392	GFP_KERNEL);
8393	if (!phba->sli4_hba.hba_eq_hdl) {
8394	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8395	"2572 Failed allocate memory for "
8396	"fast-path per-EQ handle array\n");
8397	rc = -ENOMEM;
8398	goto out_free_fcf_rr_bmask;
8399	}
8400
8401	phba->sli4_hba.cpu_map = kcalloc(n: phba->sli4_hba.num_possible_cpu,
8402	size: sizeof(struct lpfc_vector_map_info),
8403	GFP_KERNEL);
8404	if (!phba->sli4_hba.cpu_map) {
8405	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8406	"3327 Failed allocate memory for msi-x "
8407	"interrupt vector mapping\n");
8408	rc = -ENOMEM;
8409	goto out_free_hba_eq_hdl;
8410	}
8411
8412	phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8413	if (!phba->sli4_hba.eq_info) {
8414	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8415	"3321 Failed allocation for per_cpu stats\n");
8416	rc = -ENOMEM;
8417	goto out_free_hba_cpu_map;
8418	}
8419
8420	phba->sli4_hba.idle_stat = kcalloc(n: phba->sli4_hba.num_possible_cpu,
8421	size: sizeof(*phba->sli4_hba.idle_stat),
8422	GFP_KERNEL);
8423	if (!phba->sli4_hba.idle_stat) {
8424	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8425	"3390 Failed allocation for idle_stat\n");
8426	rc = -ENOMEM;
8427	goto out_free_hba_eq_info;
8428	}
8429
8430	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8431	phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8432	if (!phba->sli4_hba.c_stat) {
8433	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8434	"3332 Failed allocating per cpu hdwq stats\n");
8435	rc = -ENOMEM;
8436	goto out_free_hba_idle_stat;
8437	}
8438	#endif
8439
8440	phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8441	if (!phba->cmf_stat) {
8442	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8443	"3331 Failed allocating per cpu cgn stats\n");
8444	rc = -ENOMEM;
8445	goto out_free_hba_hdwq_info;
8446	}
8447
8448	/*
8449	* Enable sr-iov virtual functions if supported and configured
8450	* through the module parameter.
8451	*/
8452	if (phba->cfg_sriov_nr_virtfn > 0) {
8453	rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8454	nr_vfn: phba->cfg_sriov_nr_virtfn);
8455	if (rc) {
8456	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8457	"3020 Requested number of SR-IOV "
8458	"virtual functions (%d) is not "
8459	"supported\n",
8460	phba->cfg_sriov_nr_virtfn);
8461	phba->cfg_sriov_nr_virtfn = 0;
8462	}
8463	}
8464
8465	return 0;
8466
8467	out_free_hba_hdwq_info:
8468	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8469	free_percpu(pdata: phba->sli4_hba.c_stat);
8470	out_free_hba_idle_stat:
8471	#endif
8472	kfree(objp: phba->sli4_hba.idle_stat);
8473	out_free_hba_eq_info:
8474	free_percpu(pdata: phba->sli4_hba.eq_info);
8475	out_free_hba_cpu_map:
8476	kfree(objp: phba->sli4_hba.cpu_map);
8477	out_free_hba_eq_hdl:
8478	kfree(objp: phba->sli4_hba.hba_eq_hdl);
8479	out_free_fcf_rr_bmask:
8480	kfree(objp: phba->fcf.fcf_rr_bmask);
8481	out_remove_rpi_hdrs:
8482	lpfc_sli4_remove_rpi_hdrs(phba);
8483	out_free_active_sgl:
8484	lpfc_free_active_sgl(phba);
8485	out_destroy_cq_event_pool:
8486	lpfc_sli4_cq_event_pool_destroy(phba);
8487	out_free_cmd_rsp_buf:
8488	dma_pool_destroy(pool: phba->lpfc_cmd_rsp_buf_pool);
8489	phba->lpfc_cmd_rsp_buf_pool = NULL;
8490	out_free_sg_dma_buf:
8491	dma_pool_destroy(pool: phba->lpfc_sg_dma_buf_pool);
8492	phba->lpfc_sg_dma_buf_pool = NULL;
8493	out_free_bsmbx:
8494	lpfc_destroy_bootstrap_mbox(phba);
8495	out_free_mem:
8496	lpfc_mem_free(phba);
8497	out_destroy_workqueue:
8498	destroy_workqueue(wq: phba->wq);
8499	phba->wq = NULL;
8500	return rc;
8501	}
8502
8503	/**
8504	* lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8505	* @phba: pointer to lpfc hba data structure.
8506	*
8507	* This routine is invoked to unset the driver internal resources set up
8508	* specific for supporting the SLI-4 HBA device it attached to.
8509	**/
8510	static void
8511	lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8512	{
8513	struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8514
8515	free_percpu(pdata: phba->sli4_hba.eq_info);
8516	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8517	free_percpu(pdata: phba->sli4_hba.c_stat);
8518	#endif
8519	free_percpu(pdata: phba->cmf_stat);
8520	kfree(objp: phba->sli4_hba.idle_stat);
8521
8522	/* Free memory allocated for msi-x interrupt vector to CPU mapping */
8523	kfree(objp: phba->sli4_hba.cpu_map);
8524	phba->sli4_hba.num_possible_cpu = 0;
8525	phba->sli4_hba.num_present_cpu = 0;
8526	phba->sli4_hba.curr_disp_cpu = 0;
8527	cpumask_clear(dstp: &phba->sli4_hba.irq_aff_mask);
8528
8529	/* Free memory allocated for fast-path work queue handles */
8530	kfree(objp: phba->sli4_hba.hba_eq_hdl);
8531
8532	/* Free the allocated rpi headers. */
8533	lpfc_sli4_remove_rpi_hdrs(phba);
8534	lpfc_sli4_remove_rpis(phba);
8535
8536	/* Free eligible FCF index bmask */
8537	kfree(objp: phba->fcf.fcf_rr_bmask);
8538
8539	/* Free the ELS sgl list */
8540	lpfc_free_active_sgl(phba);
8541	lpfc_free_els_sgl_list(phba);
8542	lpfc_free_nvmet_sgl_list(phba);
8543
8544	/* Free the completion queue EQ event pool */
8545	lpfc_sli4_cq_event_release_all(phba);
8546	lpfc_sli4_cq_event_pool_destroy(phba);
8547
8548	/* Release resource identifiers. */
8549	lpfc_sli4_dealloc_resource_identifiers(phba);
8550
8551	/* Free the bsmbx region. */
8552	lpfc_destroy_bootstrap_mbox(phba);
8553
8554	/* Free the SLI Layer memory with SLI4 HBAs */
8555	lpfc_mem_free_all(phba);
8556
8557	/* Free the current connect table */
8558	list_for_each_entry_safe(conn_entry, next_conn_entry,
8559	&phba->fcf_conn_rec_list, list) {
8560	list_del_init(entry: &conn_entry->list);
8561	kfree(objp: conn_entry);
8562	}
8563
8564	return;
8565	}
8566
8567	/**
8568	* lpfc_init_api_table_setup - Set up init api function jump table
8569	* @phba: The hba struct for which this call is being executed.
8570	* @dev_grp: The HBA PCI-Device group number.
8571	*
8572	* This routine sets up the device INIT interface API function jump table
8573	* in @phba struct.
8574	*
8575	* Returns: 0 - success, -ENODEV - failure.
8576	**/
8577	int
8578	lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8579	{
8580	phba->lpfc_hba_init_link = lpfc_hba_init_link;
8581	phba->lpfc_hba_down_link = lpfc_hba_down_link;
8582	phba->lpfc_selective_reset = lpfc_selective_reset;
8583	switch (dev_grp) {
8584	case LPFC_PCI_DEV_LP:
8585	phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8586	phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8587	phba->lpfc_stop_port = lpfc_stop_port_s3;
8588	break;
8589	case LPFC_PCI_DEV_OC:
8590	phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8591	phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8592	phba->lpfc_stop_port = lpfc_stop_port_s4;
8593	break;
8594	default:
8595	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8596	"1431 Invalid HBA PCI-device group: 0x%x\n",
8597	dev_grp);
8598	return -ENODEV;
8599	}
8600	return 0;
8601	}
8602
8603	/**
8604	* lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8605	* @phba: pointer to lpfc hba data structure.
8606	*
8607	* This routine is invoked to set up the driver internal resources after the
8608	* device specific resource setup to support the HBA device it attached to.
8609	*
8610	* Return codes
8611	* 0 - successful
8612	* other values - error
8613	**/
8614	static int
8615	lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8616	{
8617	int error;
8618
8619	/* Startup the kernel thread for this host adapter. */
8620	phba->worker_thread = kthread_run(lpfc_do_work, phba,
8621	"lpfc_worker_%d", phba->brd_no);
8622	if (IS_ERR(ptr: phba->worker_thread)) {
8623	error = PTR_ERR(ptr: phba->worker_thread);
8624	return error;
8625	}
8626
8627	return 0;
8628	}
8629
8630	/**
8631	* lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8632	* @phba: pointer to lpfc hba data structure.
8633	*
8634	* This routine is invoked to unset the driver internal resources set up after
8635	* the device specific resource setup for supporting the HBA device it
8636	* attached to.
8637	**/
8638	static void
8639	lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8640	{
8641	if (phba->wq) {
8642	destroy_workqueue(wq: phba->wq);
8643	phba->wq = NULL;
8644	}
8645
8646	/* Stop kernel worker thread */
8647	if (phba->worker_thread)
8648	kthread_stop(k: phba->worker_thread);
8649	}
8650
8651	/**
8652	* lpfc_free_iocb_list - Free iocb list.
8653	* @phba: pointer to lpfc hba data structure.
8654	*
8655	* This routine is invoked to free the driver's IOCB list and memory.
8656	**/
8657	void
8658	lpfc_free_iocb_list(struct lpfc_hba *phba)
8659	{
8660	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8661
8662	spin_lock_irq(lock: &phba->hbalock);
8663	list_for_each_entry_safe(iocbq_entry, iocbq_next,
8664	&phba->lpfc_iocb_list, list) {
8665	list_del(entry: &iocbq_entry->list);
8666	kfree(objp: iocbq_entry);
8667	phba->total_iocbq_bufs--;
8668	}
8669	spin_unlock_irq(lock: &phba->hbalock);
8670
8671	return;
8672	}
8673
8674	/**
8675	* lpfc_init_iocb_list - Allocate and initialize iocb list.
8676	* @phba: pointer to lpfc hba data structure.
8677	* @iocb_count: number of requested iocbs
8678	*
8679	* This routine is invoked to allocate and initizlize the driver's IOCB
8680	* list and set up the IOCB tag array accordingly.
8681	*
8682	* Return codes
8683	* 0 - successful
8684	* other values - error
8685	**/
8686	int
8687	lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8688	{
8689	struct lpfc_iocbq *iocbq_entry = NULL;
8690	uint16_t iotag;
8691	int i;
8692
8693	/* Initialize and populate the iocb list per host. */
8694	INIT_LIST_HEAD(list: &phba->lpfc_iocb_list);
8695	for (i = 0; i < iocb_count; i++) {
8696	iocbq_entry = kzalloc(size: sizeof(struct lpfc_iocbq), GFP_KERNEL);
8697	if (iocbq_entry == NULL) {
8698	printk(KERN_ERR "%s: only allocated %d iocbs of "
8699	"expected %d count. Unloading driver.\n",
8700	__func__, i, iocb_count);
8701	goto out_free_iocbq;
8702	}
8703
8704	iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8705	if (iotag == 0) {
8706	kfree(objp: iocbq_entry);
8707	printk(KERN_ERR "%s: failed to allocate IOTAG. "
8708	"Unloading driver.\n", __func__);
8709	goto out_free_iocbq;
8710	}
8711	iocbq_entry->sli4_lxritag = NO_XRI;
8712	iocbq_entry->sli4_xritag = NO_XRI;
8713
8714	spin_lock_irq(lock: &phba->hbalock);
8715	list_add(new: &iocbq_entry->list, head: &phba->lpfc_iocb_list);
8716	phba->total_iocbq_bufs++;
8717	spin_unlock_irq(lock: &phba->hbalock);
8718	}
8719
8720	return 0;
8721
8722	out_free_iocbq:
8723	lpfc_free_iocb_list(phba);
8724
8725	return -ENOMEM;
8726	}
8727
8728	/**
8729	* lpfc_free_sgl_list - Free a given sgl list.
8730	* @phba: pointer to lpfc hba data structure.
8731	* @sglq_list: pointer to the head of sgl list.
8732	*
8733	* This routine is invoked to free a give sgl list and memory.
8734	**/
8735	void
8736	lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8737	{
8738	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8739
8740	list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8741	list_del(entry: &sglq_entry->list);
8742	lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8743	kfree(objp: sglq_entry);
8744	}
8745	}
8746
8747	/**
8748	* lpfc_free_els_sgl_list - Free els sgl list.
8749	* @phba: pointer to lpfc hba data structure.
8750	*
8751	* This routine is invoked to free the driver's els sgl list and memory.
8752	**/
8753	static void
8754	lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8755	{
8756	LIST_HEAD(sglq_list);
8757
8758	/* Retrieve all els sgls from driver list */
8759	spin_lock_irq(lock: &phba->sli4_hba.sgl_list_lock);
8760	list_splice_init(list: &phba->sli4_hba.lpfc_els_sgl_list, head: &sglq_list);
8761	spin_unlock_irq(lock: &phba->sli4_hba.sgl_list_lock);
8762
8763	/* Now free the sgl list */
8764	lpfc_free_sgl_list(phba, sglq_list: &sglq_list);
8765	}
8766
8767	/**
8768	* lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8769	* @phba: pointer to lpfc hba data structure.
8770	*
8771	* This routine is invoked to free the driver's nvmet sgl list and memory.
8772	**/
8773	static void
8774	lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8775	{
8776	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8777	LIST_HEAD(sglq_list);
8778
8779	/* Retrieve all nvmet sgls from driver list */
8780	spin_lock_irq(lock: &phba->hbalock);
8781	spin_lock(lock: &phba->sli4_hba.sgl_list_lock);
8782	list_splice_init(list: &phba->sli4_hba.lpfc_nvmet_sgl_list, head: &sglq_list);
8783	spin_unlock(lock: &phba->sli4_hba.sgl_list_lock);
8784	spin_unlock_irq(lock: &phba->hbalock);
8785
8786	/* Now free the sgl list */
8787	list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8788	list_del(entry: &sglq_entry->list);
8789	lpfc_nvmet_buf_free(phba, virtp: sglq_entry->virt, dma: sglq_entry->phys);
8790	kfree(objp: sglq_entry);
8791	}
8792
8793	/* Update the nvmet_xri_cnt to reflect no current sgls.
8794	* The next initialization cycle sets the count and allocates
8795	* the sgls over again.
8796	*/
8797	phba->sli4_hba.nvmet_xri_cnt = 0;
8798	}
8799
8800	/**
8801	* lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8802	* @phba: pointer to lpfc hba data structure.
8803	*
8804	* This routine is invoked to allocate the driver's active sgl memory.
8805	* This array will hold the sglq_entry's for active IOs.
8806	**/
8807	static int
8808	lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8809	{
8810	int size;
8811	size = sizeof(struct lpfc_sglq *);
8812	size *= phba->sli4_hba.max_cfg_param.max_xri;
8813
8814	phba->sli4_hba.lpfc_sglq_active_list =
8815	kzalloc(size, GFP_KERNEL);
8816	if (!phba->sli4_hba.lpfc_sglq_active_list)
8817	return -ENOMEM;
8818	return 0;
8819	}
8820
8821	/**
8822	* lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8823	* @phba: pointer to lpfc hba data structure.
8824	*
8825	* This routine is invoked to walk through the array of active sglq entries
8826	* and free all of the resources.
8827	* This is just a place holder for now.
8828	**/
8829	static void
8830	lpfc_free_active_sgl(struct lpfc_hba *phba)
8831	{
8832	kfree(objp: phba->sli4_hba.lpfc_sglq_active_list);
8833	}
8834
8835	/**
8836	* lpfc_init_sgl_list - Allocate and initialize sgl list.
8837	* @phba: pointer to lpfc hba data structure.
8838	*
8839	* This routine is invoked to allocate and initizlize the driver's sgl
8840	* list and set up the sgl xritag tag array accordingly.
8841	*
8842	**/
8843	static void
8844	lpfc_init_sgl_list(struct lpfc_hba *phba)
8845	{
8846	/* Initialize and populate the sglq list per host/VF. */
8847	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_els_sgl_list);
8848	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_abts_els_sgl_list);
8849	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_nvmet_sgl_list);
8850	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8851
8852	/* els xri-sgl book keeping */
8853	phba->sli4_hba.els_xri_cnt = 0;
8854
8855	/* nvme xri-buffer book keeping */
8856	phba->sli4_hba.io_xri_cnt = 0;
8857	}
8858
8859	/**
8860	* lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8861	* @phba: pointer to lpfc hba data structure.
8862	*
8863	* This routine is invoked to post rpi header templates to the
8864	* port for those SLI4 ports that do not support extents. This routine
8865	* posts a PAGE_SIZE memory region to the port to hold up to
8866	* PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
8867	* and should be called only when interrupts are disabled.
8868	*
8869	* Return codes
8870	* 0 - successful
8871	* -ERROR - otherwise.
8872	**/
8873	int
8874	lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8875	{
8876	int rc = 0;
8877	struct lpfc_rpi_hdr *rpi_hdr;
8878
8879	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_rpi_hdr_list);
8880	if (!phba->sli4_hba.rpi_hdrs_in_use)
8881	return rc;
8882	if (phba->sli4_hba.extents_in_use)
8883	return -EIO;
8884
8885	rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8886	if (!rpi_hdr) {
8887	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8888	"0391 Error during rpi post operation\n");
8889	lpfc_sli4_remove_rpis(phba);
8890	rc = -ENODEV;
8891	}
8892
8893	return rc;
8894	}
8895
8896	/**
8897	* lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8898	* @phba: pointer to lpfc hba data structure.
8899	*
8900	* This routine is invoked to allocate a single 4KB memory region to
8901	* support rpis and stores them in the phba. This single region
8902	* provides support for up to 64 rpis. The region is used globally
8903	* by the device.
8904	*
8905	* Returns:
8906	* A valid rpi hdr on success.
8907	* A NULL pointer on any failure.
8908	**/
8909	struct lpfc_rpi_hdr *
8910	lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8911	{
8912	uint16_t rpi_limit, curr_rpi_range;
8913	struct lpfc_dmabuf *dmabuf;
8914	struct lpfc_rpi_hdr *rpi_hdr;
8915
8916	/*
8917	* If the SLI4 port supports extents, posting the rpi header isn't
8918	* required. Set the expected maximum count and let the actual value
8919	* get set when extents are fully allocated.
8920	*/
8921	if (!phba->sli4_hba.rpi_hdrs_in_use)
8922	return NULL;
8923	if (phba->sli4_hba.extents_in_use)
8924	return NULL;
8925
8926	/* The limit on the logical index is just the max_rpi count. */
8927	rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8928
8929	spin_lock_irq(lock: &phba->hbalock);
8930	/*
8931	* Establish the starting RPI in this header block. The starting
8932	* rpi is normalized to a zero base because the physical rpi is
8933	* port based.
8934	*/
8935	curr_rpi_range = phba->sli4_hba.next_rpi;
8936	spin_unlock_irq(lock: &phba->hbalock);
8937
8938	/* Reached full RPI range */
8939	if (curr_rpi_range == rpi_limit)
8940	return NULL;
8941
8942	/*
8943	* First allocate the protocol header region for the port. The
8944	* port expects a 4KB DMA-mapped memory region that is 4K aligned.
8945	*/
8946	dmabuf = kzalloc(size: sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8947	if (!dmabuf)
8948	return NULL;
8949
8950	dmabuf->virt = dma_alloc_coherent(dev: &phba->pcidev->dev,
8951	LPFC_HDR_TEMPLATE_SIZE,
8952	dma_handle: &dmabuf->phys, GFP_KERNEL);
8953	if (!dmabuf->virt) {
8954	rpi_hdr = NULL;
8955	goto err_free_dmabuf;
8956	}
8957
8958	if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8959	rpi_hdr = NULL;
8960	goto err_free_coherent;
8961	}
8962
8963	/* Save the rpi header data for cleanup later. */
8964	rpi_hdr = kzalloc(size: sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8965	if (!rpi_hdr)
8966	goto err_free_coherent;
8967
8968	rpi_hdr->dmabuf = dmabuf;
8969	rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8970	rpi_hdr->page_count = 1;
8971	spin_lock_irq(lock: &phba->hbalock);
8972
8973	/* The rpi_hdr stores the logical index only. */
8974	rpi_hdr->start_rpi = curr_rpi_range;
8975	rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8976	list_add_tail(new: &rpi_hdr->list, head: &phba->sli4_hba.lpfc_rpi_hdr_list);
8977
8978	spin_unlock_irq(lock: &phba->hbalock);
8979	return rpi_hdr;
8980
8981	err_free_coherent:
8982	dma_free_coherent(dev: &phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8983	cpu_addr: dmabuf->virt, dma_handle: dmabuf->phys);
8984	err_free_dmabuf:
8985	kfree(objp: dmabuf);
8986	return NULL;
8987	}
8988
8989	/**
8990	* lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8991	* @phba: pointer to lpfc hba data structure.
8992	*
8993	* This routine is invoked to remove all memory resources allocated
8994	* to support rpis for SLI4 ports not supporting extents. This routine
8995	* presumes the caller has released all rpis consumed by fabric or port
8996	* logins and is prepared to have the header pages removed.
8997	**/
8998	void
8999	lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
9000	{
9001	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
9002
9003	if (!phba->sli4_hba.rpi_hdrs_in_use)
9004	goto exit;
9005
9006	list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
9007	&phba->sli4_hba.lpfc_rpi_hdr_list, list) {
9008	list_del(entry: &rpi_hdr->list);
9009	dma_free_coherent(dev: &phba->pcidev->dev, size: rpi_hdr->len,
9010	cpu_addr: rpi_hdr->dmabuf->virt, dma_handle: rpi_hdr->dmabuf->phys);
9011	kfree(objp: rpi_hdr->dmabuf);
9012	kfree(objp: rpi_hdr);
9013	}
9014	exit:
9015	/* There are no rpis available to the port now. */
9016	phba->sli4_hba.next_rpi = 0;
9017	}
9018
9019	/**
9020	* lpfc_hba_alloc - Allocate driver hba data structure for a device.
9021	* @pdev: pointer to pci device data structure.
9022	*
9023	* This routine is invoked to allocate the driver hba data structure for an
9024	* HBA device. If the allocation is successful, the phba reference to the
9025	* PCI device data structure is set.
9026	*
9027	* Return codes
9028	* pointer to @phba - successful
9029	* NULL - error
9030	**/
9031	static struct lpfc_hba *
9032	lpfc_hba_alloc(struct pci_dev *pdev)
9033	{
9034	struct lpfc_hba *phba;
9035
9036	/* Allocate memory for HBA structure */
9037	phba = kzalloc(size: sizeof(struct lpfc_hba), GFP_KERNEL);
9038	if (!phba) {
9039	dev_err(&pdev->dev, "failed to allocate hba struct\n");
9040	return NULL;
9041	}
9042
9043	/* Set reference to PCI device in HBA structure */
9044	phba->pcidev = pdev;
9045
9046	/* Assign an unused board number */
9047	phba->brd_no = lpfc_get_instance();
9048	if (phba->brd_no < 0) {
9049	kfree(objp: phba);
9050	return NULL;
9051	}
9052	phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
9053
9054	spin_lock_init(&phba->ct_ev_lock);
9055	INIT_LIST_HEAD(list: &phba->ct_ev_waiters);
9056
9057	return phba;
9058	}
9059
9060	/**
9061	* lpfc_hba_free - Free driver hba data structure with a device.
9062	* @phba: pointer to lpfc hba data structure.
9063	*
9064	* This routine is invoked to free the driver hba data structure with an
9065	* HBA device.
9066	**/
9067	static void
9068	lpfc_hba_free(struct lpfc_hba *phba)
9069	{
9070	if (phba->sli_rev == LPFC_SLI_REV4)
9071	kfree(objp: phba->sli4_hba.hdwq);
9072
9073	/* Release the driver assigned board number */
9074	idr_remove(&lpfc_hba_index, id: phba->brd_no);
9075
9076	/* Free memory allocated with sli3 rings */
9077	kfree(objp: phba->sli.sli3_ring);
9078	phba->sli.sli3_ring = NULL;
9079
9080	kfree(objp: phba);
9081	return;
9082	}
9083
9084	/**
9085	* lpfc_setup_fdmi_mask - Setup initial FDMI mask for HBA and Port attributes
9086	* @vport: pointer to lpfc vport data structure.
9087	*
9088	* This routine is will setup initial FDMI attribute masks for
9089	* FDMI2 or SmartSAN depending on module parameters. The driver will attempt
9090	* to get these attributes first before falling back, the attribute
9091	* fallback hierarchy is SmartSAN -> FDMI2 -> FMDI1
9092	**/
9093	void
9094	lpfc_setup_fdmi_mask(struct lpfc_vport *vport)
9095	{
9096	struct lpfc_hba *phba = vport->phba;
9097
9098	set_bit(nr: FC_ALLOW_FDMI, addr: &vport->load_flag);
9099	if (phba->cfg_enable_SmartSAN ||
9100	phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) {
9101	/* Setup appropriate attribute masks */
9102	vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9103	if (phba->cfg_enable_SmartSAN)
9104	vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9105	else
9106	vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9107	}
9108
9109	lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
9110	"6077 Setup FDMI mask: hba x%x port x%x\n",
9111	vport->fdmi_hba_mask, vport->fdmi_port_mask);
9112	}
9113
9114	/**
9115	* lpfc_create_shost - Create hba physical port with associated scsi host.
9116	* @phba: pointer to lpfc hba data structure.
9117	*
9118	* This routine is invoked to create HBA physical port and associate a SCSI
9119	* host with it.
9120	*
9121	* Return codes
9122	* 0 - successful
9123	* other values - error
9124	**/
9125	static int
9126	lpfc_create_shost(struct lpfc_hba *phba)
9127	{
9128	struct lpfc_vport *vport;
9129	struct Scsi_Host *shost;
9130
9131	/* Initialize HBA FC structure */
9132	phba->fc_edtov = FF_DEF_EDTOV;
9133	phba->fc_ratov = FF_DEF_RATOV;
9134	phba->fc_altov = FF_DEF_ALTOV;
9135	phba->fc_arbtov = FF_DEF_ARBTOV;
9136
9137	atomic_set(v: &phba->sdev_cnt, i: 0);
9138	vport = lpfc_create_port(phba, instance: phba->brd_no, dev: &phba->pcidev->dev);
9139	if (!vport)
9140	return -ENODEV;
9141
9142	shost = lpfc_shost_from_vport(vport);
9143	phba->pport = vport;
9144
9145	if (phba->nvmet_support) {
9146	/* Only 1 vport (pport) will support NVME target */
9147	phba->targetport = NULL;
9148	phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9149	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9150	"6076 NVME Target Found\n");
9151	}
9152
9153	lpfc_debugfs_initialize(vport);
9154	/* Put reference to SCSI host to driver's device private data */
9155	pci_set_drvdata(pdev: phba->pcidev, data: shost);
9156
9157	lpfc_setup_fdmi_mask(vport);
9158
9159	/*
9160	* At this point we are fully registered with PSA. In addition,
9161	* any initial discovery should be completed.
9162	*/
9163	return 0;
9164	}
9165
9166	/**
9167	* lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9168	* @phba: pointer to lpfc hba data structure.
9169	*
9170	* This routine is invoked to destroy HBA physical port and the associated
9171	* SCSI host.
9172	**/
9173	static void
9174	lpfc_destroy_shost(struct lpfc_hba *phba)
9175	{
9176	struct lpfc_vport *vport = phba->pport;
9177
9178	/* Destroy physical port that associated with the SCSI host */
9179	destroy_port(vport);
9180
9181	return;
9182	}
9183
9184	/**
9185	* lpfc_setup_bg - Setup Block guard structures and debug areas.
9186	* @phba: pointer to lpfc hba data structure.
9187	* @shost: the shost to be used to detect Block guard settings.
9188	*
9189	* This routine sets up the local Block guard protocol settings for @shost.
9190	* This routine also allocates memory for debugging bg buffers.
9191	**/
9192	static void
9193	lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9194	{
9195	uint32_t old_mask;
9196	uint32_t old_guard;
9197
9198	if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9199	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9200	"1478 Registering BlockGuard with the "
9201	"SCSI layer\n");
9202
9203	old_mask = phba->cfg_prot_mask;
9204	old_guard = phba->cfg_prot_guard;
9205
9206	/* Only allow supported values */
9207	phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9208	SHOST_DIX_TYPE0_PROTECTION |
9209	SHOST_DIX_TYPE1_PROTECTION);
9210	phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9211	SHOST_DIX_GUARD_CRC);
9212
9213	/* DIF Type 1 protection for profiles AST1/C1 is end to end */
9214	if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9215	phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9216
9217	if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9218	if ((old_mask != phba->cfg_prot_mask) ||
9219	(old_guard != phba->cfg_prot_guard))
9220	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9221	"1475 Registering BlockGuard with the "
9222	"SCSI layer: mask %d guard %d\n",
9223	phba->cfg_prot_mask,
9224	phba->cfg_prot_guard);
9225
9226	scsi_host_set_prot(shost, mask: phba->cfg_prot_mask);
9227	scsi_host_set_guard(shost, type: phba->cfg_prot_guard);
9228	} else
9229	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9230	"1479 Not Registering BlockGuard with the SCSI "
9231	"layer, Bad protection parameters: %d %d\n",
9232	old_mask, old_guard);
9233	}
9234	}
9235
9236	/**
9237	* lpfc_post_init_setup - Perform necessary device post initialization setup.
9238	* @phba: pointer to lpfc hba data structure.
9239	*
9240	* This routine is invoked to perform all the necessary post initialization
9241	* setup for the device.
9242	**/
9243	static void
9244	lpfc_post_init_setup(struct lpfc_hba *phba)
9245	{
9246	struct Scsi_Host *shost;
9247	struct lpfc_adapter_event_header adapter_event;
9248
9249	/* Get the default values for Model Name and Description */
9250	lpfc_get_hba_model_desc(phba, mdp: phba->ModelName, descp: phba->ModelDesc);
9251
9252	/*
9253	* hba setup may have changed the hba_queue_depth so we need to
9254	* adjust the value of can_queue.
9255	*/
9256	shost = pci_get_drvdata(pdev: phba->pcidev);
9257	shost->can_queue = phba->cfg_hba_queue_depth - 10;
9258
9259	lpfc_host_attrib_init(shost);
9260
9261	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9262	spin_lock_irq(lock: shost->host_lock);
9263	lpfc_poll_start_timer(phba);
9264	spin_unlock_irq(lock: shost->host_lock);
9265	}
9266
9267	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9268	"0428 Perform SCSI scan\n");
9269	/* Send board arrival event to upper layer */
9270	adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9271	adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9272	fc_host_post_vendor_event(shost, event_number: fc_get_event_number(),
9273	data_len: sizeof(adapter_event),
9274	data_buf: (char *) &adapter_event,
9275	LPFC_NL_VENDOR_ID);
9276	return;
9277	}
9278
9279	/**
9280	* lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9281	* @phba: pointer to lpfc hba data structure.
9282	*
9283	* This routine is invoked to set up the PCI device memory space for device
9284	* with SLI-3 interface spec.
9285	*
9286	* Return codes
9287	* 0 - successful
9288	* other values - error
9289	**/
9290	static int
9291	lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9292	{
9293	struct pci_dev *pdev = phba->pcidev;
9294	unsigned long bar0map_len, bar2map_len;
9295	int i, hbq_count;
9296	void *ptr;
9297	int error;
9298
9299	if (!pdev)
9300	return -ENODEV;
9301
9302	/* Set the device DMA mask size */
9303	error = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(64));
9304	if (error)
9305	error = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(32));
9306	if (error)
9307	return error;
9308	error = -ENODEV;
9309
9310	/* Get the bus address of Bar0 and Bar2 and the number of bytes
9311	* required by each mapping.
9312	*/
9313	phba->pci_bar0_map = pci_resource_start(pdev, 0);
9314	bar0map_len = pci_resource_len(pdev, 0);
9315
9316	phba->pci_bar2_map = pci_resource_start(pdev, 2);
9317	bar2map_len = pci_resource_len(pdev, 2);
9318
9319	/* Map HBA SLIM to a kernel virtual address. */
9320	phba->slim_memmap_p = ioremap(offset: phba->pci_bar0_map, size: bar0map_len);
9321	if (!phba->slim_memmap_p) {
9322	dev_printk(KERN_ERR, &pdev->dev,
9323	"ioremap failed for SLIM memory.\n");
9324	goto out;
9325	}
9326
9327	/* Map HBA Control Registers to a kernel virtual address. */
9328	phba->ctrl_regs_memmap_p = ioremap(offset: phba->pci_bar2_map, size: bar2map_len);
9329	if (!phba->ctrl_regs_memmap_p) {
9330	dev_printk(KERN_ERR, &pdev->dev,
9331	"ioremap failed for HBA control registers.\n");
9332	goto out_iounmap_slim;
9333	}
9334
9335	/* Allocate memory for SLI-2 structures */
9336	phba->slim2p.virt = dma_alloc_coherent(dev: &pdev->dev, SLI2_SLIM_SIZE,
9337	dma_handle: &phba->slim2p.phys, GFP_KERNEL);
9338	if (!phba->slim2p.virt)
9339	goto out_iounmap;
9340
9341	phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9342	phba->mbox_ext = (phba->slim2p.virt +
9343	offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9344	phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9345	phba->IOCBs = (phba->slim2p.virt +
9346	offsetof(struct lpfc_sli2_slim, IOCBs));
9347
9348	phba->hbqslimp.virt = dma_alloc_coherent(dev: &pdev->dev,
9349	size: lpfc_sli_hbq_size(),
9350	dma_handle: &phba->hbqslimp.phys,
9351	GFP_KERNEL);
9352	if (!phba->hbqslimp.virt)
9353	goto out_free_slim;
9354
9355	hbq_count = lpfc_sli_hbq_count();
9356	ptr = phba->hbqslimp.virt;
9357	for (i = 0; i < hbq_count; ++i) {
9358	phba->hbqs[i].hbq_virt = ptr;
9359	INIT_LIST_HEAD(list: &phba->hbqs[i].hbq_buffer_list);
9360	ptr += (lpfc_hbq_defs[i]->entry_count *
9361	sizeof(struct lpfc_hbq_entry));
9362	}
9363	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9364	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9365
9366	memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9367
9368	phba->MBslimaddr = phba->slim_memmap_p;
9369	phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9370	phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9371	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9372	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9373
9374	return 0;
9375
9376	out_free_slim:
9377	dma_free_coherent(dev: &pdev->dev, SLI2_SLIM_SIZE,
9378	cpu_addr: phba->slim2p.virt, dma_handle: phba->slim2p.phys);
9379	out_iounmap:
9380	iounmap(addr: phba->ctrl_regs_memmap_p);
9381	out_iounmap_slim:
9382	iounmap(addr: phba->slim_memmap_p);
9383	out:
9384	return error;
9385	}
9386
9387	/**
9388	* lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9389	* @phba: pointer to lpfc hba data structure.
9390	*
9391	* This routine is invoked to unset the PCI device memory space for device
9392	* with SLI-3 interface spec.
9393	**/
9394	static void
9395	lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9396	{
9397	struct pci_dev *pdev;
9398
9399	/* Obtain PCI device reference */
9400	if (!phba->pcidev)
9401	return;
9402	else
9403	pdev = phba->pcidev;
9404
9405	/* Free coherent DMA memory allocated */
9406	dma_free_coherent(dev: &pdev->dev, size: lpfc_sli_hbq_size(),
9407	cpu_addr: phba->hbqslimp.virt, dma_handle: phba->hbqslimp.phys);
9408	dma_free_coherent(dev: &pdev->dev, SLI2_SLIM_SIZE,
9409	cpu_addr: phba->slim2p.virt, dma_handle: phba->slim2p.phys);
9410
9411	/* I/O memory unmap */
9412	iounmap(addr: phba->ctrl_regs_memmap_p);
9413	iounmap(addr: phba->slim_memmap_p);
9414
9415	return;
9416	}
9417
9418	/**
9419	* lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9420	* @phba: pointer to lpfc hba data structure.
9421	*
9422	* This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9423	* done and check status.
9424	*
9425	* Return 0 if successful, otherwise -ENODEV.
9426	**/
9427	int
9428	lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9429	{
9430	struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9431	struct lpfc_register reg_data;
9432	int i, port_error = 0;
9433	uint32_t if_type;
9434
9435	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9436	memset(&reg_data, 0, sizeof(reg_data));
9437	if (!phba->sli4_hba.PSMPHRregaddr)
9438	return -ENODEV;
9439
9440	/* Wait up to 30 seconds for the SLI Port POST done and ready */
9441	for (i = 0; i < 3000; i++) {
9442	if (lpfc_readl(addr: phba->sli4_hba.PSMPHRregaddr,
9443	data: &portsmphr_reg.word0) ||
9444	(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9445	/* Port has a fatal POST error, break out */
9446	port_error = -ENODEV;
9447	break;
9448	}
9449	if (LPFC_POST_STAGE_PORT_READY ==
9450	bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9451	break;
9452	msleep(msecs: 10);
9453	}
9454
9455	/*
9456	* If there was a port error during POST, then don't proceed with
9457	* other register reads as the data may not be valid. Just exit.
9458	*/
9459	if (port_error) {
9460	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9461	"1408 Port Failed POST - portsmphr=0x%x, "
9462	"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9463	"scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9464	portsmphr_reg.word0,
9465	bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9466	bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9467	bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9468	bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9469	bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9470	bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9471	bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9472	bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9473	} else {
9474	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9475	"2534 Device Info: SLIFamily=0x%x, "
9476	"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9477	"SLIHint_2=0x%x, FT=0x%x\n",
9478	bf_get(lpfc_sli_intf_sli_family,
9479	&phba->sli4_hba.sli_intf),
9480	bf_get(lpfc_sli_intf_slirev,
9481	&phba->sli4_hba.sli_intf),
9482	bf_get(lpfc_sli_intf_if_type,
9483	&phba->sli4_hba.sli_intf),
9484	bf_get(lpfc_sli_intf_sli_hint1,
9485	&phba->sli4_hba.sli_intf),
9486	bf_get(lpfc_sli_intf_sli_hint2,
9487	&phba->sli4_hba.sli_intf),
9488	bf_get(lpfc_sli_intf_func_type,
9489	&phba->sli4_hba.sli_intf));
9490	/*
9491	* Check for other Port errors during the initialization
9492	* process. Fail the load if the port did not come up
9493	* correctly.
9494	*/
9495	if_type = bf_get(lpfc_sli_intf_if_type,
9496	&phba->sli4_hba.sli_intf);
9497	switch (if_type) {
9498	case LPFC_SLI_INTF_IF_TYPE_0:
9499	phba->sli4_hba.ue_mask_lo =
9500	readl(addr: phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9501	phba->sli4_hba.ue_mask_hi =
9502	readl(addr: phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9503	uerrlo_reg.word0 =
9504	readl(addr: phba->sli4_hba.u.if_type0.UERRLOregaddr);
9505	uerrhi_reg.word0 =
9506	readl(addr: phba->sli4_hba.u.if_type0.UERRHIregaddr);
9507	if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9508	(~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9509	lpfc_printf_log(phba, KERN_ERR,
9510	LOG_TRACE_EVENT,
9511	"1422 Unrecoverable Error "
9512	"Detected during POST "
9513	"uerr_lo_reg=0x%x, "
9514	"uerr_hi_reg=0x%x, "
9515	"ue_mask_lo_reg=0x%x, "
9516	"ue_mask_hi_reg=0x%x\n",
9517	uerrlo_reg.word0,
9518	uerrhi_reg.word0,
9519	phba->sli4_hba.ue_mask_lo,
9520	phba->sli4_hba.ue_mask_hi);
9521	port_error = -ENODEV;
9522	}
9523	break;
9524	case LPFC_SLI_INTF_IF_TYPE_2:
9525	case LPFC_SLI_INTF_IF_TYPE_6:
9526	/* Final checks. The port status should be clean. */
9527	if (lpfc_readl(addr: phba->sli4_hba.u.if_type2.STATUSregaddr,
9528	data: &reg_data.word0) ||
9529	lpfc_sli4_unrecoverable_port(portstat_reg: &reg_data)) {
9530	phba->work_status[0] =
9531	readl(addr: phba->sli4_hba.u.if_type2.
9532	ERR1regaddr);
9533	phba->work_status[1] =
9534	readl(addr: phba->sli4_hba.u.if_type2.
9535	ERR2regaddr);
9536	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9537	"2888 Unrecoverable port error "
9538	"following POST: port status reg "
9539	"0x%x, port_smphr reg 0x%x, "
9540	"error 1=0x%x, error 2=0x%x\n",
9541	reg_data.word0,
9542	portsmphr_reg.word0,
9543	phba->work_status[0],
9544	phba->work_status[1]);
9545	port_error = -ENODEV;
9546	break;
9547	}
9548
9549	if (lpfc_pldv_detect &&
9550	bf_get(lpfc_sli_intf_sli_family,
9551	&phba->sli4_hba.sli_intf) ==
9552	LPFC_SLI_INTF_FAMILY_G6)
9553	pci_write_config_byte(dev: phba->pcidev,
9554	LPFC_SLI_INTF, CFG_PLD);
9555	break;
9556	case LPFC_SLI_INTF_IF_TYPE_1:
9557	default:
9558	break;
9559	}
9560	}
9561	return port_error;
9562	}
9563
9564	/**
9565	* lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9566	* @phba: pointer to lpfc hba data structure.
9567	* @if_type: The SLI4 interface type getting configured.
9568	*
9569	* This routine is invoked to set up SLI4 BAR0 PCI config space register
9570	* memory map.
9571	**/
9572	static void
9573	lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9574	{
9575	switch (if_type) {
9576	case LPFC_SLI_INTF_IF_TYPE_0:
9577	phba->sli4_hba.u.if_type0.UERRLOregaddr =
9578	phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9579	phba->sli4_hba.u.if_type0.UERRHIregaddr =
9580	phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9581	phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9582	phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9583	phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9584	phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9585	phba->sli4_hba.SLIINTFregaddr =
9586	phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9587	break;
9588	case LPFC_SLI_INTF_IF_TYPE_2:
9589	phba->sli4_hba.u.if_type2.EQDregaddr =
9590	phba->sli4_hba.conf_regs_memmap_p +
9591	LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9592	phba->sli4_hba.u.if_type2.ERR1regaddr =
9593	phba->sli4_hba.conf_regs_memmap_p +
9594	LPFC_CTL_PORT_ER1_OFFSET;
9595	phba->sli4_hba.u.if_type2.ERR2regaddr =
9596	phba->sli4_hba.conf_regs_memmap_p +
9597	LPFC_CTL_PORT_ER2_OFFSET;
9598	phba->sli4_hba.u.if_type2.CTRLregaddr =
9599	phba->sli4_hba.conf_regs_memmap_p +
9600	LPFC_CTL_PORT_CTL_OFFSET;
9601	phba->sli4_hba.u.if_type2.STATUSregaddr =
9602	phba->sli4_hba.conf_regs_memmap_p +
9603	LPFC_CTL_PORT_STA_OFFSET;
9604	phba->sli4_hba.SLIINTFregaddr =
9605	phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9606	phba->sli4_hba.PSMPHRregaddr =
9607	phba->sli4_hba.conf_regs_memmap_p +
9608	LPFC_CTL_PORT_SEM_OFFSET;
9609	phba->sli4_hba.RQDBregaddr =
9610	phba->sli4_hba.conf_regs_memmap_p +
9611	LPFC_ULP0_RQ_DOORBELL;
9612	phba->sli4_hba.WQDBregaddr =
9613	phba->sli4_hba.conf_regs_memmap_p +
9614	LPFC_ULP0_WQ_DOORBELL;
9615	phba->sli4_hba.CQDBregaddr =
9616	phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9617	phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9618	phba->sli4_hba.MQDBregaddr =
9619	phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9620	phba->sli4_hba.BMBXregaddr =
9621	phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9622	break;
9623	case LPFC_SLI_INTF_IF_TYPE_6:
9624	phba->sli4_hba.u.if_type2.EQDregaddr =
9625	phba->sli4_hba.conf_regs_memmap_p +
9626	LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9627	phba->sli4_hba.u.if_type2.ERR1regaddr =
9628	phba->sli4_hba.conf_regs_memmap_p +
9629	LPFC_CTL_PORT_ER1_OFFSET;
9630	phba->sli4_hba.u.if_type2.ERR2regaddr =
9631	phba->sli4_hba.conf_regs_memmap_p +
9632	LPFC_CTL_PORT_ER2_OFFSET;
9633	phba->sli4_hba.u.if_type2.CTRLregaddr =
9634	phba->sli4_hba.conf_regs_memmap_p +
9635	LPFC_CTL_PORT_CTL_OFFSET;
9636	phba->sli4_hba.u.if_type2.STATUSregaddr =
9637	phba->sli4_hba.conf_regs_memmap_p +
9638	LPFC_CTL_PORT_STA_OFFSET;
9639	phba->sli4_hba.PSMPHRregaddr =
9640	phba->sli4_hba.conf_regs_memmap_p +
9641	LPFC_CTL_PORT_SEM_OFFSET;
9642	phba->sli4_hba.BMBXregaddr =
9643	phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9644	break;
9645	case LPFC_SLI_INTF_IF_TYPE_1:
9646	default:
9647	dev_printk(KERN_ERR, &phba->pcidev->dev,
9648	"FATAL - unsupported SLI4 interface type - %d\n",
9649	if_type);
9650	break;
9651	}
9652	}
9653
9654	/**
9655	* lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9656	* @phba: pointer to lpfc hba data structure.
9657	* @if_type: sli if type to operate on.
9658	*
9659	* This routine is invoked to set up SLI4 BAR1 register memory map.
9660	**/
9661	static void
9662	lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9663	{
9664	switch (if_type) {
9665	case LPFC_SLI_INTF_IF_TYPE_0:
9666	phba->sli4_hba.PSMPHRregaddr =
9667	phba->sli4_hba.ctrl_regs_memmap_p +
9668	LPFC_SLIPORT_IF0_SMPHR;
9669	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9670	LPFC_HST_ISR0;
9671	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9672	LPFC_HST_IMR0;
9673	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9674	LPFC_HST_ISCR0;
9675	break;
9676	case LPFC_SLI_INTF_IF_TYPE_6:
9677	phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9678	LPFC_IF6_RQ_DOORBELL;
9679	phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9680	LPFC_IF6_WQ_DOORBELL;
9681	phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9682	LPFC_IF6_CQ_DOORBELL;
9683	phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9684	LPFC_IF6_EQ_DOORBELL;
9685	phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9686	LPFC_IF6_MQ_DOORBELL;
9687	break;
9688	case LPFC_SLI_INTF_IF_TYPE_2:
9689	case LPFC_SLI_INTF_IF_TYPE_1:
9690	default:
9691	dev_err(&phba->pcidev->dev,
9692	"FATAL - unsupported SLI4 interface type - %d\n",
9693	if_type);
9694	break;
9695	}
9696	}
9697
9698	/**
9699	* lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9700	* @phba: pointer to lpfc hba data structure.
9701	* @vf: virtual function number
9702	*
9703	* This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9704	* based on the given viftual function number, @vf.
9705	*
9706	* Return 0 if successful, otherwise -ENODEV.
9707	**/
9708	static int
9709	lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9710	{
9711	if (vf > LPFC_VIR_FUNC_MAX)
9712	return -ENODEV;
9713
9714	phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9715	vf * LPFC_VFR_PAGE_SIZE +
9716	LPFC_ULP0_RQ_DOORBELL);
9717	phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9718	vf * LPFC_VFR_PAGE_SIZE +
9719	LPFC_ULP0_WQ_DOORBELL);
9720	phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9721	vf * LPFC_VFR_PAGE_SIZE +
9722	LPFC_EQCQ_DOORBELL);
9723	phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9724	phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9725	vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9726	phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9727	vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9728	return 0;
9729	}
9730
9731	/**
9732	* lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9733	* @phba: pointer to lpfc hba data structure.
9734	*
9735	* This routine is invoked to create the bootstrap mailbox
9736	* region consistent with the SLI-4 interface spec. This
9737	* routine allocates all memory necessary to communicate
9738	* mailbox commands to the port and sets up all alignment
9739	* needs. No locks are expected to be held when calling
9740	* this routine.
9741	*
9742	* Return codes
9743	* 0 - successful
9744	* -ENOMEM - could not allocated memory.
9745	**/
9746	static int
9747	lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9748	{
9749	uint32_t bmbx_size;
9750	struct lpfc_dmabuf *dmabuf;
9751	struct dma_address *dma_address;
9752	uint32_t pa_addr;
9753	uint64_t phys_addr;
9754
9755	dmabuf = kzalloc(size: sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9756	if (!dmabuf)
9757	return -ENOMEM;
9758
9759	/*
9760	* The bootstrap mailbox region is comprised of 2 parts
9761	* plus an alignment restriction of 16 bytes.
9762	*/
9763	bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9764	dmabuf->virt = dma_alloc_coherent(dev: &phba->pcidev->dev, size: bmbx_size,
9765	dma_handle: &dmabuf->phys, GFP_KERNEL);
9766	if (!dmabuf->virt) {
9767	kfree(objp: dmabuf);
9768	return -ENOMEM;
9769	}
9770
9771	/*
9772	* Initialize the bootstrap mailbox pointers now so that the register
9773	* operations are simple later. The mailbox dma address is required
9774	* to be 16-byte aligned. Also align the virtual memory as each
9775	* maibox is copied into the bmbx mailbox region before issuing the
9776	* command to the port.
9777	*/
9778	phba->sli4_hba.bmbx.dmabuf = dmabuf;
9779	phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9780
9781	phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9782	LPFC_ALIGN_16_BYTE);
9783	phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9784	LPFC_ALIGN_16_BYTE);
9785
9786	/*
9787	* Set the high and low physical addresses now. The SLI4 alignment
9788	* requirement is 16 bytes and the mailbox is posted to the port
9789	* as two 30-bit addresses. The other data is a bit marking whether
9790	* the 30-bit address is the high or low address.
9791	* Upcast bmbx aphys to 64bits so shift instruction compiles
9792	* clean on 32 bit machines.
9793	*/
9794	dma_address = &phba->sli4_hba.bmbx.dma_address;
9795	phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9796	pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9797	dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9798	LPFC_BMBX_BIT1_ADDR_HI);
9799
9800	pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9801	dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9802	LPFC_BMBX_BIT1_ADDR_LO);
9803	return 0;
9804	}
9805
9806	/**
9807	* lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9808	* @phba: pointer to lpfc hba data structure.
9809	*
9810	* This routine is invoked to teardown the bootstrap mailbox
9811	* region and release all host resources. This routine requires
9812	* the caller to ensure all mailbox commands recovered, no
9813	* additional mailbox comands are sent, and interrupts are disabled
9814	* before calling this routine.
9815	*
9816	**/
9817	static void
9818	lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9819	{
9820	dma_free_coherent(dev: &phba->pcidev->dev,
9821	size: phba->sli4_hba.bmbx.bmbx_size,
9822	cpu_addr: phba->sli4_hba.bmbx.dmabuf->virt,
9823	dma_handle: phba->sli4_hba.bmbx.dmabuf->phys);
9824
9825	kfree(objp: phba->sli4_hba.bmbx.dmabuf);
9826	memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9827	}
9828
9829	static const char * const lpfc_topo_to_str[] = {
9830	"Loop then P2P",
9831	"Loopback",
9832	"P2P Only",
9833	"Unsupported",
9834	"Loop Only",
9835	"Unsupported",
9836	"P2P then Loop",
9837	};
9838
9839	#define LINK_FLAGS_DEF 0x0
9840	#define LINK_FLAGS_P2P 0x1
9841	#define LINK_FLAGS_LOOP 0x2
9842	/**
9843	* lpfc_map_topology - Map the topology read from READ_CONFIG
9844	* @phba: pointer to lpfc hba data structure.
9845	* @rd_config: pointer to read config data
9846	*
9847	* This routine is invoked to map the topology values as read
9848	* from the read config mailbox command. If the persistent
9849	* topology feature is supported, the firmware will provide the
9850	* saved topology information to be used in INIT_LINK
9851	**/
9852	static void
9853	lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9854	{
9855	u8 ptv, tf, pt;
9856
9857	ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9858	tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9859	pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9860
9861	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9862	"2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9863	ptv, tf, pt);
9864	if (!ptv) {
9865	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9866	"2019 FW does not support persistent topology "
9867	"Using driver parameter defined value [%s]",
9868	lpfc_topo_to_str[phba->cfg_topology]);
9869	return;
9870	}
9871	/* FW supports persistent topology - override module parameter value */
9872	phba->hba_flag |= HBA_PERSISTENT_TOPO;
9873
9874	/* if ASIC_GEN_NUM >= 0xC) */
9875	if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9876	LPFC_SLI_INTF_IF_TYPE_6) ||
9877	(bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9878	LPFC_SLI_INTF_FAMILY_G6)) {
9879	if (!tf) {
9880	phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9881	? FLAGS_TOPOLOGY_MODE_LOOP
9882	: FLAGS_TOPOLOGY_MODE_PT_PT);
9883	} else {
9884	phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9885	}
9886	} else { /* G5 */
9887	if (tf) {
9888	/* If topology failover set - pt is '0' or '1' */
9889	phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9890	FLAGS_TOPOLOGY_MODE_LOOP_PT);
9891	} else {
9892	phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9893	? FLAGS_TOPOLOGY_MODE_PT_PT
9894	: FLAGS_TOPOLOGY_MODE_LOOP);
9895	}
9896	}
9897	if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9898	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9899	"2020 Using persistent topology value [%s]",
9900	lpfc_topo_to_str[phba->cfg_topology]);
9901	} else {
9902	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9903	"2021 Invalid topology values from FW "
9904	"Using driver parameter defined value [%s]",
9905	lpfc_topo_to_str[phba->cfg_topology]);
9906	}
9907	}
9908
9909	/**
9910	* lpfc_sli4_read_config - Get the config parameters.
9911	* @phba: pointer to lpfc hba data structure.
9912	*
9913	* This routine is invoked to read the configuration parameters from the HBA.
9914	* The configuration parameters are used to set the base and maximum values
9915	* for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9916	* allocation for the port.
9917	*
9918	* Return codes
9919	* 0 - successful
9920	* -ENOMEM - No available memory
9921	* -EIO - The mailbox failed to complete successfully.
9922	**/
9923	int
9924	lpfc_sli4_read_config(struct lpfc_hba *phba)
9925	{
9926	LPFC_MBOXQ_t *pmb;
9927	struct lpfc_mbx_read_config *rd_config;
9928	union lpfc_sli4_cfg_shdr *shdr;
9929	uint32_t shdr_status, shdr_add_status;
9930	struct lpfc_mbx_get_func_cfg *get_func_cfg;
9931	struct lpfc_rsrc_desc_fcfcoe *desc;
9932	char *pdesc_0;
9933	uint16_t forced_link_speed;
9934	uint32_t if_type, qmin, fawwpn;
9935	int length, i, rc = 0, rc2;
9936
9937	pmb = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
9938	if (!pmb) {
9939	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9940	"2011 Unable to allocate memory for issuing "
9941	"SLI_CONFIG_SPECIAL mailbox command\n");
9942	return -ENOMEM;
9943	}
9944
9945	lpfc_read_config(phba, pmb);
9946
9947	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9948	if (rc != MBX_SUCCESS) {
9949	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9950	"2012 Mailbox failed , mbxCmd x%x "
9951	"READ_CONFIG, mbxStatus x%x\n",
9952	bf_get(lpfc_mqe_command, &pmb->u.mqe),
9953	bf_get(lpfc_mqe_status, &pmb->u.mqe));
9954	rc = -EIO;
9955	} else {
9956	rd_config = &pmb->u.mqe.un.rd_config;
9957	if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9958	phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9959	phba->sli4_hba.lnk_info.lnk_tp =
9960	bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9961	phba->sli4_hba.lnk_info.lnk_no =
9962	bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9963	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9964	"3081 lnk_type:%d, lnk_numb:%d\n",
9965	phba->sli4_hba.lnk_info.lnk_tp,
9966	phba->sli4_hba.lnk_info.lnk_no);
9967	} else
9968	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9969	"3082 Mailbox (x%x) returned ldv:x0\n",
9970	bf_get(lpfc_mqe_command, &pmb->u.mqe));
9971	if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9972	phba->bbcredit_support = 1;
9973	phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9974	}
9975
9976	fawwpn = bf_get(lpfc_mbx_rd_conf_fawwpn, rd_config);
9977
9978	if (fawwpn) {
9979	lpfc_printf_log(phba, KERN_INFO,
9980	LOG_INIT | LOG_DISCOVERY,
9981	"2702 READ_CONFIG: FA-PWWN is "
9982	"configured on\n");
9983	phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_CONFIG;
9984	} else {
9985	/* Clear FW configured flag, preserve driver flag */
9986	phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_CONFIG;
9987	}
9988
9989	phba->sli4_hba.conf_trunk =
9990	bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9991	phba->sli4_hba.extents_in_use =
9992	bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9993
9994	phba->sli4_hba.max_cfg_param.max_xri =
9995	bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9996	/* Reduce resource usage in kdump environment */
9997	if (is_kdump_kernel() &&
9998	phba->sli4_hba.max_cfg_param.max_xri > 512)
9999	phba->sli4_hba.max_cfg_param.max_xri = 512;
10000	phba->sli4_hba.max_cfg_param.xri_base =
10001	bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
10002	phba->sli4_hba.max_cfg_param.max_vpi =
10003	bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
10004	/* Limit the max we support */
10005	if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
10006	phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
10007	phba->sli4_hba.max_cfg_param.vpi_base =
10008	bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
10009	phba->sli4_hba.max_cfg_param.max_rpi =
10010	bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
10011	phba->sli4_hba.max_cfg_param.rpi_base =
10012	bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
10013	phba->sli4_hba.max_cfg_param.max_vfi =
10014	bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
10015	phba->sli4_hba.max_cfg_param.vfi_base =
10016	bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
10017	phba->sli4_hba.max_cfg_param.max_fcfi =
10018	bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
10019	phba->sli4_hba.max_cfg_param.max_eq =
10020	bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
10021	phba->sli4_hba.max_cfg_param.max_rq =
10022	bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
10023	phba->sli4_hba.max_cfg_param.max_wq =
10024	bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
10025	phba->sli4_hba.max_cfg_param.max_cq =
10026	bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
10027	phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
10028	phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
10029	phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
10030	phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
10031	phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
10032	(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
10033	phba->max_vports = phba->max_vpi;
10034
10035	/* Next decide on FPIN or Signal E2E CGN support
10036	* For congestion alarms and warnings valid combination are:
10037	* 1. FPIN alarms / FPIN warnings
10038	* 2. Signal alarms / Signal warnings
10039	* 3. FPIN alarms / Signal warnings
10040	* 4. Signal alarms / FPIN warnings
10041	*
10042	* Initialize the adapter frequency to 100 mSecs
10043	*/
10044	phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
10045	phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
10046	phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
10047
10048	if (lpfc_use_cgn_signal) {
10049	if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
10050	phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
10051	phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
10052	}
10053	if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
10054	/* MUST support both alarm and warning
10055	* because EDC does not support alarm alone.
10056	*/
10057	if (phba->cgn_reg_signal !=
10058	EDC_CG_SIG_WARN_ONLY) {
10059	/* Must support both or none */
10060	phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
10061	phba->cgn_reg_signal =
10062	EDC_CG_SIG_NOTSUPPORTED;
10063	} else {
10064	phba->cgn_reg_signal =
10065	EDC_CG_SIG_WARN_ALARM;
10066	phba->cgn_reg_fpin =
10067	LPFC_CGN_FPIN_NONE;
10068	}
10069	}
10070	}
10071
10072	/* Set the congestion initial signal and fpin values. */
10073	phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
10074	phba->cgn_init_reg_signal = phba->cgn_reg_signal;
10075
10076	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
10077	"6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
10078	phba->cgn_reg_signal, phba->cgn_reg_fpin);
10079
10080	lpfc_map_topology(phba, rd_config);
10081	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10082	"2003 cfg params Extents? %d "
10083	"XRI(B:%d M:%d), "
10084	"VPI(B:%d M:%d) "
10085	"VFI(B:%d M:%d) "
10086	"RPI(B:%d M:%d) "
10087	"FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
10088	phba->sli4_hba.extents_in_use,
10089	phba->sli4_hba.max_cfg_param.xri_base,
10090	phba->sli4_hba.max_cfg_param.max_xri,
10091	phba->sli4_hba.max_cfg_param.vpi_base,
10092	phba->sli4_hba.max_cfg_param.max_vpi,
10093	phba->sli4_hba.max_cfg_param.vfi_base,
10094	phba->sli4_hba.max_cfg_param.max_vfi,
10095	phba->sli4_hba.max_cfg_param.rpi_base,
10096	phba->sli4_hba.max_cfg_param.max_rpi,
10097	phba->sli4_hba.max_cfg_param.max_fcfi,
10098	phba->sli4_hba.max_cfg_param.max_eq,
10099	phba->sli4_hba.max_cfg_param.max_cq,
10100	phba->sli4_hba.max_cfg_param.max_wq,
10101	phba->sli4_hba.max_cfg_param.max_rq,
10102	phba->lmt);
10103
10104	/*
10105	* Calculate queue resources based on how
10106	* many WQ/CQ/EQs are available.
10107	*/
10108	qmin = phba->sli4_hba.max_cfg_param.max_wq;
10109	if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
10110	qmin = phba->sli4_hba.max_cfg_param.max_cq;
10111	/*
10112	* Reserve 4 (ELS, NVME LS, MBOX, plus one extra) and
10113	* the remainder can be used for NVME / FCP.
10114	*/
10115	qmin -= 4;
10116	if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
10117	qmin = phba->sli4_hba.max_cfg_param.max_eq;
10118
10119	/* Check to see if there is enough for default cfg */
10120	if ((phba->cfg_irq_chann > qmin) ||
10121	(phba->cfg_hdw_queue > qmin)) {
10122	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10123	"2005 Reducing Queues - "
10124	"FW resource limitation: "
10125	"WQ %d CQ %d EQ %d: min %d: "
10126	"IRQ %d HDWQ %d\n",
10127	phba->sli4_hba.max_cfg_param.max_wq,
10128	phba->sli4_hba.max_cfg_param.max_cq,
10129	phba->sli4_hba.max_cfg_param.max_eq,
10130	qmin, phba->cfg_irq_chann,
10131	phba->cfg_hdw_queue);
10132
10133	if (phba->cfg_irq_chann > qmin)
10134	phba->cfg_irq_chann = qmin;
10135	if (phba->cfg_hdw_queue > qmin)
10136	phba->cfg_hdw_queue = qmin;
10137	}
10138	}
10139
10140	if (rc)
10141	goto read_cfg_out;
10142
10143	/* Update link speed if forced link speed is supported */
10144	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10145	if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10146	forced_link_speed =
10147	bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10148	if (forced_link_speed) {
10149	phba->hba_flag |= HBA_FORCED_LINK_SPEED;
10150
10151	switch (forced_link_speed) {
10152	case LINK_SPEED_1G:
10153	phba->cfg_link_speed =
10154	LPFC_USER_LINK_SPEED_1G;
10155	break;
10156	case LINK_SPEED_2G:
10157	phba->cfg_link_speed =
10158	LPFC_USER_LINK_SPEED_2G;
10159	break;
10160	case LINK_SPEED_4G:
10161	phba->cfg_link_speed =
10162	LPFC_USER_LINK_SPEED_4G;
10163	break;
10164	case LINK_SPEED_8G:
10165	phba->cfg_link_speed =
10166	LPFC_USER_LINK_SPEED_8G;
10167	break;
10168	case LINK_SPEED_10G:
10169	phba->cfg_link_speed =
10170	LPFC_USER_LINK_SPEED_10G;
10171	break;
10172	case LINK_SPEED_16G:
10173	phba->cfg_link_speed =
10174	LPFC_USER_LINK_SPEED_16G;
10175	break;
10176	case LINK_SPEED_32G:
10177	phba->cfg_link_speed =
10178	LPFC_USER_LINK_SPEED_32G;
10179	break;
10180	case LINK_SPEED_64G:
10181	phba->cfg_link_speed =
10182	LPFC_USER_LINK_SPEED_64G;
10183	break;
10184	case 0xffff:
10185	phba->cfg_link_speed =
10186	LPFC_USER_LINK_SPEED_AUTO;
10187	break;
10188	default:
10189	lpfc_printf_log(phba, KERN_ERR,
10190	LOG_TRACE_EVENT,
10191	"0047 Unrecognized link "
10192	"speed : %d\n",
10193	forced_link_speed);
10194	phba->cfg_link_speed =
10195	LPFC_USER_LINK_SPEED_AUTO;
10196	}
10197	}
10198	}
10199
10200	/* Reset the DFT_HBA_Q_DEPTH to the max xri */
10201	length = phba->sli4_hba.max_cfg_param.max_xri -
10202	lpfc_sli4_get_els_iocb_cnt(phba);
10203	if (phba->cfg_hba_queue_depth > length) {
10204	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10205	"3361 HBA queue depth changed from %d to %d\n",
10206	phba->cfg_hba_queue_depth, length);
10207	phba->cfg_hba_queue_depth = length;
10208	}
10209
10210	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10211	LPFC_SLI_INTF_IF_TYPE_2)
10212	goto read_cfg_out;
10213
10214	/* get the pf# and vf# for SLI4 if_type 2 port */
10215	length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10216	sizeof(struct lpfc_sli4_cfg_mhdr));
10217	lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10218	LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10219	length, LPFC_SLI4_MBX_EMBED);
10220
10221	rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10222	shdr = (union lpfc_sli4_cfg_shdr *)
10223	&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10224	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10225	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10226	if (rc2 || shdr_status || shdr_add_status) {
10227	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10228	"3026 Mailbox failed , mbxCmd x%x "
10229	"GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10230	bf_get(lpfc_mqe_command, &pmb->u.mqe),
10231	bf_get(lpfc_mqe_status, &pmb->u.mqe));
10232	goto read_cfg_out;
10233	}
10234
10235	/* search for fc_fcoe resrouce descriptor */
10236	get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10237
10238	pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10239	desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10240	length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10241	if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10242	length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10243	else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10244	goto read_cfg_out;
10245
10246	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10247	desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10248	if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10249	bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10250	phba->sli4_hba.iov.pf_number =
10251	bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10252	phba->sli4_hba.iov.vf_number =
10253	bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10254	break;
10255	}
10256	}
10257
10258	if (i < LPFC_RSRC_DESC_MAX_NUM)
10259	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10260	"3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10261	"vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10262	phba->sli4_hba.iov.vf_number);
10263	else
10264	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10265	"3028 GET_FUNCTION_CONFIG: failed to find "
10266	"Resource Descriptor:x%x\n",
10267	LPFC_RSRC_DESC_TYPE_FCFCOE);
10268
10269	read_cfg_out:
10270	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
10271	return rc;
10272	}
10273
10274	/**
10275	* lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10276	* @phba: pointer to lpfc hba data structure.
10277	*
10278	* This routine is invoked to setup the port-side endian order when
10279	* the port if_type is 0. This routine has no function for other
10280	* if_types.
10281	*
10282	* Return codes
10283	* 0 - successful
10284	* -ENOMEM - No available memory
10285	* -EIO - The mailbox failed to complete successfully.
10286	**/
10287	static int
10288	lpfc_setup_endian_order(struct lpfc_hba *phba)
10289	{
10290	LPFC_MBOXQ_t *mboxq;
10291	uint32_t if_type, rc = 0;
10292	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10293	HOST_ENDIAN_HIGH_WORD1};
10294
10295	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10296	switch (if_type) {
10297	case LPFC_SLI_INTF_IF_TYPE_0:
10298	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool,
10299	GFP_KERNEL);
10300	if (!mboxq) {
10301	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10302	"0492 Unable to allocate memory for "
10303	"issuing SLI_CONFIG_SPECIAL mailbox "
10304	"command\n");
10305	return -ENOMEM;
10306	}
10307
10308	/*
10309	* The SLI4_CONFIG_SPECIAL mailbox command requires the first
10310	* two words to contain special data values and no other data.
10311	*/
10312	memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10313	memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10314	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10315	if (rc != MBX_SUCCESS) {
10316	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10317	"0493 SLI_CONFIG_SPECIAL mailbox "
10318	"failed with status x%x\n",
10319	rc);
10320	rc = -EIO;
10321	}
10322	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
10323	break;
10324	case LPFC_SLI_INTF_IF_TYPE_6:
10325	case LPFC_SLI_INTF_IF_TYPE_2:
10326	case LPFC_SLI_INTF_IF_TYPE_1:
10327	default:
10328	break;
10329	}
10330	return rc;
10331	}
10332
10333	/**
10334	* lpfc_sli4_queue_verify - Verify and update EQ counts
10335	* @phba: pointer to lpfc hba data structure.
10336	*
10337	* This routine is invoked to check the user settable queue counts for EQs.
10338	* After this routine is called the counts will be set to valid values that
10339	* adhere to the constraints of the system's interrupt vectors and the port's
10340	* queue resources.
10341	*
10342	* Return codes
10343	* 0 - successful
10344	* -ENOMEM - No available memory
10345	**/
10346	static int
10347	lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10348	{
10349	/*
10350	* Sanity check for configured queue parameters against the run-time
10351	* device parameters
10352	*/
10353
10354	if (phba->nvmet_support) {
10355	if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10356	phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10357	if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10358	phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10359	}
10360
10361	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10362	"2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10363	phba->cfg_hdw_queue, phba->cfg_irq_chann,
10364	phba->cfg_nvmet_mrq);
10365
10366	/* Get EQ depth from module parameter, fake the default for now */
10367	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10368	phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10369
10370	/* Get CQ depth from module parameter, fake the default for now */
10371	phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10372	phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10373	return 0;
10374	}
10375
10376	static int
10377	lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10378	{
10379	struct lpfc_queue *qdesc;
10380	u32 wqesize;
10381	int cpu;
10382
10383	cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10384	/* Create Fast Path IO CQs */
10385	if (phba->enab_exp_wqcq_pages)
10386	/* Increase the CQ size when WQEs contain an embedded cdb */
10387	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10388	entry_size: phba->sli4_hba.cq_esize,
10389	LPFC_CQE_EXP_COUNT, cpu);
10390
10391	else
10392	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10393	entry_size: phba->sli4_hba.cq_esize,
10394	entry_count: phba->sli4_hba.cq_ecount, cpu);
10395	if (!qdesc) {
10396	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10397	"0499 Failed allocate fast-path IO CQ (%d)\n",
10398	idx);
10399	return 1;
10400	}
10401	qdesc->qe_valid = 1;
10402	qdesc->hdwq = idx;
10403	qdesc->chann = cpu;
10404	phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10405
10406	/* Create Fast Path IO WQs */
10407	if (phba->enab_exp_wqcq_pages) {
10408	/* Increase the WQ size when WQEs contain an embedded cdb */
10409	wqesize = (phba->fcp_embed_io) ?
10410	LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10411	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10412	entry_size: wqesize,
10413	LPFC_WQE_EXP_COUNT, cpu);
10414	} else
10415	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10416	entry_size: phba->sli4_hba.wq_esize,
10417	entry_count: phba->sli4_hba.wq_ecount, cpu);
10418
10419	if (!qdesc) {
10420	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10421	"0503 Failed allocate fast-path IO WQ (%d)\n",
10422	idx);
10423	return 1;
10424	}
10425	qdesc->hdwq = idx;
10426	qdesc->chann = cpu;
10427	phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10428	list_add_tail(new: &qdesc->wq_list, head: &phba->sli4_hba.lpfc_wq_list);
10429	return 0;
10430	}
10431
10432	/**
10433	* lpfc_sli4_queue_create - Create all the SLI4 queues
10434	* @phba: pointer to lpfc hba data structure.
10435	*
10436	* This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10437	* operation. For each SLI4 queue type, the parameters such as queue entry
10438	* count (queue depth) shall be taken from the module parameter. For now,
10439	* we just use some constant number as place holder.
10440	*
10441	* Return codes
10442	* 0 - successful
10443	* -ENOMEM - No availble memory
10444	* -EIO - The mailbox failed to complete successfully.
10445	**/
10446	int
10447	lpfc_sli4_queue_create(struct lpfc_hba *phba)
10448	{
10449	struct lpfc_queue *qdesc;
10450	int idx, cpu, eqcpu;
10451	struct lpfc_sli4_hdw_queue *qp;
10452	struct lpfc_vector_map_info *cpup;
10453	struct lpfc_vector_map_info *eqcpup;
10454	struct lpfc_eq_intr_info *eqi;
10455
10456	/*
10457	* Create HBA Record arrays.
10458	* Both NVME and FCP will share that same vectors / EQs
10459	*/
10460	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10461	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10462	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10463	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10464	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10465	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10466	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10467	phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10468	phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10469	phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10470
10471	if (!phba->sli4_hba.hdwq) {
10472	phba->sli4_hba.hdwq = kcalloc(
10473	n: phba->cfg_hdw_queue, size: sizeof(struct lpfc_sli4_hdw_queue),
10474	GFP_KERNEL);
10475	if (!phba->sli4_hba.hdwq) {
10476	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10477	"6427 Failed allocate memory for "
10478	"fast-path Hardware Queue array\n");
10479	goto out_error;
10480	}
10481	/* Prepare hardware queues to take IO buffers */
10482	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10483	qp = &phba->sli4_hba.hdwq[idx];
10484	spin_lock_init(&qp->io_buf_list_get_lock);
10485	spin_lock_init(&qp->io_buf_list_put_lock);
10486	INIT_LIST_HEAD(list: &qp->lpfc_io_buf_list_get);
10487	INIT_LIST_HEAD(list: &qp->lpfc_io_buf_list_put);
10488	qp->get_io_bufs = 0;
10489	qp->put_io_bufs = 0;
10490	qp->total_io_bufs = 0;
10491	spin_lock_init(&qp->abts_io_buf_list_lock);
10492	INIT_LIST_HEAD(list: &qp->lpfc_abts_io_buf_list);
10493	qp->abts_scsi_io_bufs = 0;
10494	qp->abts_nvme_io_bufs = 0;
10495	INIT_LIST_HEAD(list: &qp->sgl_list);
10496	INIT_LIST_HEAD(list: &qp->cmd_rsp_buf_list);
10497	spin_lock_init(&qp->hdwq_lock);
10498	}
10499	}
10500
10501	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10502	if (phba->nvmet_support) {
10503	phba->sli4_hba.nvmet_cqset = kcalloc(
10504	n: phba->cfg_nvmet_mrq,
10505	size: sizeof(struct lpfc_queue *),
10506	GFP_KERNEL);
10507	if (!phba->sli4_hba.nvmet_cqset) {
10508	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10509	"3121 Fail allocate memory for "
10510	"fast-path CQ set array\n");
10511	goto out_error;
10512	}
10513	phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10514	n: phba->cfg_nvmet_mrq,
10515	size: sizeof(struct lpfc_queue *),
10516	GFP_KERNEL);
10517	if (!phba->sli4_hba.nvmet_mrq_hdr) {
10518	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10519	"3122 Fail allocate memory for "
10520	"fast-path RQ set hdr array\n");
10521	goto out_error;
10522	}
10523	phba->sli4_hba.nvmet_mrq_data = kcalloc(
10524	n: phba->cfg_nvmet_mrq,
10525	size: sizeof(struct lpfc_queue *),
10526	GFP_KERNEL);
10527	if (!phba->sli4_hba.nvmet_mrq_data) {
10528	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10529	"3124 Fail allocate memory for "
10530	"fast-path RQ set data array\n");
10531	goto out_error;
10532	}
10533	}
10534	}
10535
10536	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_wq_list);
10537
10538	/* Create HBA Event Queues (EQs) */
10539	for_each_present_cpu(cpu) {
10540	/* We only want to create 1 EQ per vector, even though
10541	* multiple CPUs might be using that vector. so only
10542	* selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10543	*/
10544	cpup = &phba->sli4_hba.cpu_map[cpu];
10545	if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10546	continue;
10547
10548	/* Get a ptr to the Hardware Queue associated with this CPU */
10549	qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10550
10551	/* Allocate an EQ */
10552	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10553	entry_size: phba->sli4_hba.eq_esize,
10554	entry_count: phba->sli4_hba.eq_ecount, cpu);
10555	if (!qdesc) {
10556	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10557	"0497 Failed allocate EQ (%d)\n",
10558	cpup->hdwq);
10559	goto out_error;
10560	}
10561	qdesc->qe_valid = 1;
10562	qdesc->hdwq = cpup->hdwq;
10563	qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10564	qdesc->last_cpu = qdesc->chann;
10565
10566	/* Save the allocated EQ in the Hardware Queue */
10567	qp->hba_eq = qdesc;
10568
10569	eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10570	list_add(new: &qdesc->cpu_list, head: &eqi->list);
10571	}
10572
10573	/* Now we need to populate the other Hardware Queues, that share
10574	* an IRQ vector, with the associated EQ ptr.
10575	*/
10576	for_each_present_cpu(cpu) {
10577	cpup = &phba->sli4_hba.cpu_map[cpu];
10578
10579	/* Check for EQ already allocated in previous loop */
10580	if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10581	continue;
10582
10583	/* Check for multiple CPUs per hdwq */
10584	qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10585	if (qp->hba_eq)
10586	continue;
10587
10588	/* We need to share an EQ for this hdwq */
10589	eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10590	eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10591	qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10592	}
10593
10594	/* Allocate IO Path SLI4 CQ/WQs */
10595	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10596	if (lpfc_alloc_io_wq_cq(phba, idx))
10597	goto out_error;
10598	}
10599
10600	if (phba->nvmet_support) {
10601	for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10602	cpu = lpfc_find_cpu_handle(phba, idx,
10603	LPFC_FIND_BY_HDWQ);
10604	qdesc = lpfc_sli4_queue_alloc(phba,
10605	LPFC_DEFAULT_PAGE_SIZE,
10606	entry_size: phba->sli4_hba.cq_esize,
10607	entry_count: phba->sli4_hba.cq_ecount,
10608	cpu);
10609	if (!qdesc) {
10610	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10611	"3142 Failed allocate NVME "
10612	"CQ Set (%d)\n", idx);
10613	goto out_error;
10614	}
10615	qdesc->qe_valid = 1;
10616	qdesc->hdwq = idx;
10617	qdesc->chann = cpu;
10618	phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10619	}
10620	}
10621
10622	/*
10623	* Create Slow Path Completion Queues (CQs)
10624	*/
10625
10626	cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10627	/* Create slow-path Mailbox Command Complete Queue */
10628	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10629	entry_size: phba->sli4_hba.cq_esize,
10630	entry_count: phba->sli4_hba.cq_ecount, cpu);
10631	if (!qdesc) {
10632	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10633	"0500 Failed allocate slow-path mailbox CQ\n");
10634	goto out_error;
10635	}
10636	qdesc->qe_valid = 1;
10637	phba->sli4_hba.mbx_cq = qdesc;
10638
10639	/* Create slow-path ELS Complete Queue */
10640	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10641	entry_size: phba->sli4_hba.cq_esize,
10642	entry_count: phba->sli4_hba.cq_ecount, cpu);
10643	if (!qdesc) {
10644	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10645	"0501 Failed allocate slow-path ELS CQ\n");
10646	goto out_error;
10647	}
10648	qdesc->qe_valid = 1;
10649	qdesc->chann = cpu;
10650	phba->sli4_hba.els_cq = qdesc;
10651
10652
10653	/*
10654	* Create Slow Path Work Queues (WQs)
10655	*/
10656
10657	/* Create Mailbox Command Queue */
10658
10659	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10660	entry_size: phba->sli4_hba.mq_esize,
10661	entry_count: phba->sli4_hba.mq_ecount, cpu);
10662	if (!qdesc) {
10663	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10664	"0505 Failed allocate slow-path MQ\n");
10665	goto out_error;
10666	}
10667	qdesc->chann = cpu;
10668	phba->sli4_hba.mbx_wq = qdesc;
10669
10670	/*
10671	* Create ELS Work Queues
10672	*/
10673
10674	/* Create slow-path ELS Work Queue */
10675	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10676	entry_size: phba->sli4_hba.wq_esize,
10677	entry_count: phba->sli4_hba.wq_ecount, cpu);
10678	if (!qdesc) {
10679	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10680	"0504 Failed allocate slow-path ELS WQ\n");
10681	goto out_error;
10682	}
10683	qdesc->chann = cpu;
10684	phba->sli4_hba.els_wq = qdesc;
10685	list_add_tail(new: &qdesc->wq_list, head: &phba->sli4_hba.lpfc_wq_list);
10686
10687	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10688	/* Create NVME LS Complete Queue */
10689	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10690	entry_size: phba->sli4_hba.cq_esize,
10691	entry_count: phba->sli4_hba.cq_ecount, cpu);
10692	if (!qdesc) {
10693	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10694	"6079 Failed allocate NVME LS CQ\n");
10695	goto out_error;
10696	}
10697	qdesc->chann = cpu;
10698	qdesc->qe_valid = 1;
10699	phba->sli4_hba.nvmels_cq = qdesc;
10700
10701	/* Create NVME LS Work Queue */
10702	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10703	entry_size: phba->sli4_hba.wq_esize,
10704	entry_count: phba->sli4_hba.wq_ecount, cpu);
10705	if (!qdesc) {
10706	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10707	"6080 Failed allocate NVME LS WQ\n");
10708	goto out_error;
10709	}
10710	qdesc->chann = cpu;
10711	phba->sli4_hba.nvmels_wq = qdesc;
10712	list_add_tail(new: &qdesc->wq_list, head: &phba->sli4_hba.lpfc_wq_list);
10713	}
10714
10715	/*
10716	* Create Receive Queue (RQ)
10717	*/
10718
10719	/* Create Receive Queue for header */
10720	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10721	entry_size: phba->sli4_hba.rq_esize,
10722	entry_count: phba->sli4_hba.rq_ecount, cpu);
10723	if (!qdesc) {
10724	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10725	"0506 Failed allocate receive HRQ\n");
10726	goto out_error;
10727	}
10728	phba->sli4_hba.hdr_rq = qdesc;
10729
10730	/* Create Receive Queue for data */
10731	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10732	entry_size: phba->sli4_hba.rq_esize,
10733	entry_count: phba->sli4_hba.rq_ecount, cpu);
10734	if (!qdesc) {
10735	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10736	"0507 Failed allocate receive DRQ\n");
10737	goto out_error;
10738	}
10739	phba->sli4_hba.dat_rq = qdesc;
10740
10741	if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10742	phba->nvmet_support) {
10743	for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10744	cpu = lpfc_find_cpu_handle(phba, idx,
10745	LPFC_FIND_BY_HDWQ);
10746	/* Create NVMET Receive Queue for header */
10747	qdesc = lpfc_sli4_queue_alloc(phba,
10748	LPFC_DEFAULT_PAGE_SIZE,
10749	entry_size: phba->sli4_hba.rq_esize,
10750	LPFC_NVMET_RQE_DEF_COUNT,
10751	cpu);
10752	if (!qdesc) {
10753	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10754	"3146 Failed allocate "
10755	"receive HRQ\n");
10756	goto out_error;
10757	}
10758	qdesc->hdwq = idx;
10759	phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10760
10761	/* Only needed for header of RQ pair */
10762	qdesc->rqbp = kzalloc_node(size: sizeof(*qdesc->rqbp),
10763	GFP_KERNEL,
10764	cpu_to_node(cpu));
10765	if (qdesc->rqbp == NULL) {
10766	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10767	"6131 Failed allocate "
10768	"Header RQBP\n");
10769	goto out_error;
10770	}
10771
10772	/* Put list in known state in case driver load fails. */
10773	INIT_LIST_HEAD(list: &qdesc->rqbp->rqb_buffer_list);
10774
10775	/* Create NVMET Receive Queue for data */
10776	qdesc = lpfc_sli4_queue_alloc(phba,
10777	LPFC_DEFAULT_PAGE_SIZE,
10778	entry_size: phba->sli4_hba.rq_esize,
10779	LPFC_NVMET_RQE_DEF_COUNT,
10780	cpu);
10781	if (!qdesc) {
10782	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10783	"3156 Failed allocate "
10784	"receive DRQ\n");
10785	goto out_error;
10786	}
10787	qdesc->hdwq = idx;
10788	phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10789	}
10790	}
10791
10792	/* Clear NVME stats */
10793	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10794	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10795	memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10796	sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10797	}
10798	}
10799
10800	/* Clear SCSI stats */
10801	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10802	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10803	memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10804	sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10805	}
10806	}
10807
10808	return 0;
10809
10810	out_error:
10811	lpfc_sli4_queue_destroy(phba);
10812	return -ENOMEM;
10813	}
10814
10815	static inline void
10816	__lpfc_sli4_release_queue(struct lpfc_queue **qp)
10817	{
10818	if (*qp != NULL) {
10819	lpfc_sli4_queue_free(*qp);
10820	*qp = NULL;
10821	}
10822	}
10823
10824	static inline void
10825	lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10826	{
10827	int idx;
10828
10829	if (*qs == NULL)
10830	return;
10831
10832	for (idx = 0; idx < max; idx++)
10833	__lpfc_sli4_release_queue(qp: &(*qs)[idx]);
10834
10835	kfree(objp: *qs);
10836	*qs = NULL;
10837	}
10838
10839	static inline void
10840	lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10841	{
10842	struct lpfc_sli4_hdw_queue *hdwq;
10843	struct lpfc_queue *eq;
10844	uint32_t idx;
10845
10846	hdwq = phba->sli4_hba.hdwq;
10847
10848	/* Loop thru all Hardware Queues */
10849	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10850	/* Free the CQ/WQ corresponding to the Hardware Queue */
10851	lpfc_sli4_queue_free(hdwq[idx].io_cq);
10852	lpfc_sli4_queue_free(hdwq[idx].io_wq);
10853	hdwq[idx].hba_eq = NULL;
10854	hdwq[idx].io_cq = NULL;
10855	hdwq[idx].io_wq = NULL;
10856	if (phba->cfg_xpsgl && !phba->nvmet_support)
10857	lpfc_free_sgl_per_hdwq(phba, hdwq: &hdwq[idx]);
10858	lpfc_free_cmd_rsp_buf_per_hdwq(phba, hdwq: &hdwq[idx]);
10859	}
10860	/* Loop thru all IRQ vectors */
10861	for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10862	/* Free the EQ corresponding to the IRQ vector */
10863	eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10864	lpfc_sli4_queue_free(eq);
10865	phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10866	}
10867	}
10868
10869	/**
10870	* lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10871	* @phba: pointer to lpfc hba data structure.
10872	*
10873	* This routine is invoked to release all the SLI4 queues with the FCoE HBA
10874	* operation.
10875	*
10876	* Return codes
10877	* 0 - successful
10878	* -ENOMEM - No available memory
10879	* -EIO - The mailbox failed to complete successfully.
10880	**/
10881	void
10882	lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10883	{
10884	/*
10885	* Set FREE_INIT before beginning to free the queues.
10886	* Wait until the users of queues to acknowledge to
10887	* release queues by clearing FREE_WAIT.
10888	*/
10889	spin_lock_irq(lock: &phba->hbalock);
10890	phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10891	while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10892	spin_unlock_irq(lock: &phba->hbalock);
10893	msleep(msecs: 20);
10894	spin_lock_irq(lock: &phba->hbalock);
10895	}
10896	spin_unlock_irq(lock: &phba->hbalock);
10897
10898	lpfc_sli4_cleanup_poll_list(phba);
10899
10900	/* Release HBA eqs */
10901	if (phba->sli4_hba.hdwq)
10902	lpfc_sli4_release_hdwq(phba);
10903
10904	if (phba->nvmet_support) {
10905	lpfc_sli4_release_queues(qs: &phba->sli4_hba.nvmet_cqset,
10906	max: phba->cfg_nvmet_mrq);
10907
10908	lpfc_sli4_release_queues(qs: &phba->sli4_hba.nvmet_mrq_hdr,
10909	max: phba->cfg_nvmet_mrq);
10910	lpfc_sli4_release_queues(qs: &phba->sli4_hba.nvmet_mrq_data,
10911	max: phba->cfg_nvmet_mrq);
10912	}
10913
10914	/* Release mailbox command work queue */
10915	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.mbx_wq);
10916
10917	/* Release ELS work queue */
10918	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.els_wq);
10919
10920	/* Release ELS work queue */
10921	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.nvmels_wq);
10922
10923	/* Release unsolicited receive queue */
10924	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.hdr_rq);
10925	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.dat_rq);
10926
10927	/* Release ELS complete queue */
10928	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.els_cq);
10929
10930	/* Release NVME LS complete queue */
10931	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.nvmels_cq);
10932
10933	/* Release mailbox command complete queue */
10934	__lpfc_sli4_release_queue(qp: &phba->sli4_hba.mbx_cq);
10935
10936	/* Everything on this list has been freed */
10937	INIT_LIST_HEAD(list: &phba->sli4_hba.lpfc_wq_list);
10938
10939	/* Done with freeing the queues */
10940	spin_lock_irq(lock: &phba->hbalock);
10941	phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10942	spin_unlock_irq(lock: &phba->hbalock);
10943	}
10944
10945	int
10946	lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10947	{
10948	struct lpfc_rqb *rqbp;
10949	struct lpfc_dmabuf *h_buf;
10950	struct rqb_dmabuf *rqb_buffer;
10951
10952	rqbp = rq->rqbp;
10953	while (!list_empty(head: &rqbp->rqb_buffer_list)) {
10954	list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10955	struct lpfc_dmabuf, list);
10956
10957	rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10958	(rqbp->rqb_free_buffer)(phba, rqb_buffer);
10959	rqbp->buffer_count--;
10960	}
10961	return 1;
10962	}
10963
10964	static int
10965	lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10966	struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10967	int qidx, uint32_t qtype)
10968	{
10969	struct lpfc_sli_ring *pring;
10970	int rc;
10971
10972	if (!eq || !cq || !wq) {
10973	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10974	"6085 Fast-path %s (%d) not allocated\n",
10975	((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10976	return -ENOMEM;
10977	}
10978
10979	/* create the Cq first */
10980	rc = lpfc_cq_create(phba, cq, eq,
10981	(qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10982	if (rc) {
10983	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10984	"6086 Failed setup of CQ (%d), rc = 0x%x\n",
10985	qidx, (uint32_t)rc);
10986	return rc;
10987	}
10988
10989	if (qtype != LPFC_MBOX) {
10990	/* Setup cq_map for fast lookup */
10991	if (cq_map)
10992	*cq_map = cq->queue_id;
10993
10994	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10995	"6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10996	qidx, cq->queue_id, qidx, eq->queue_id);
10997
10998	/* create the wq */
10999	rc = lpfc_wq_create(phba, wq, cq, qtype);
11000	if (rc) {
11001	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11002	"4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
11003	qidx, (uint32_t)rc);
11004	/* no need to tear down cq - caller will do so */
11005	return rc;
11006	}
11007
11008	/* Bind this CQ/WQ to the NVME ring */
11009	pring = wq->pring;
11010	pring->sli.sli4.wqp = (void *)wq;
11011	cq->pring = pring;
11012
11013	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11014	"2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
11015	qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
11016	} else {
11017	rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
11018	if (rc) {
11019	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11020	"0539 Failed setup of slow-path MQ: "
11021	"rc = 0x%x\n", rc);
11022	/* no need to tear down cq - caller will do so */
11023	return rc;
11024	}
11025
11026	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11027	"2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
11028	phba->sli4_hba.mbx_wq->queue_id,
11029	phba->sli4_hba.mbx_cq->queue_id);
11030	}
11031
11032	return 0;
11033	}
11034
11035	/**
11036	* lpfc_setup_cq_lookup - Setup the CQ lookup table
11037	* @phba: pointer to lpfc hba data structure.
11038	*
11039	* This routine will populate the cq_lookup table by all
11040	* available CQ queue_id's.
11041	**/
11042	static void
11043	lpfc_setup_cq_lookup(struct lpfc_hba *phba)
11044	{
11045	struct lpfc_queue *eq, *childq;
11046	int qidx;
11047
11048	memset(phba->sli4_hba.cq_lookup, 0,
11049	(sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
11050	/* Loop thru all IRQ vectors */
11051	for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11052	/* Get the EQ corresponding to the IRQ vector */
11053	eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11054	if (!eq)
11055	continue;
11056	/* Loop through all CQs associated with that EQ */
11057	list_for_each_entry(childq, &eq->child_list, list) {
11058	if (childq->queue_id > phba->sli4_hba.cq_max)
11059	continue;
11060	if (childq->subtype == LPFC_IO)
11061	phba->sli4_hba.cq_lookup[childq->queue_id] =
11062	childq;
11063	}
11064	}
11065	}
11066
11067	/**
11068	* lpfc_sli4_queue_setup - Set up all the SLI4 queues
11069	* @phba: pointer to lpfc hba data structure.
11070	*
11071	* This routine is invoked to set up all the SLI4 queues for the FCoE HBA
11072	* operation.
11073	*
11074	* Return codes
11075	* 0 - successful
11076	* -ENOMEM - No available memory
11077	* -EIO - The mailbox failed to complete successfully.
11078	**/
11079	int
11080	lpfc_sli4_queue_setup(struct lpfc_hba *phba)
11081	{
11082	uint32_t shdr_status, shdr_add_status;
11083	union lpfc_sli4_cfg_shdr *shdr;
11084	struct lpfc_vector_map_info *cpup;
11085	struct lpfc_sli4_hdw_queue *qp;
11086	LPFC_MBOXQ_t *mboxq;
11087	int qidx, cpu;
11088	uint32_t length, usdelay;
11089	int rc = -ENOMEM;
11090
11091	/* Check for dual-ULP support */
11092	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
11093	if (!mboxq) {
11094	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11095	"3249 Unable to allocate memory for "
11096	"QUERY_FW_CFG mailbox command\n");
11097	return -ENOMEM;
11098	}
11099	length = (sizeof(struct lpfc_mbx_query_fw_config) -
11100	sizeof(struct lpfc_sli4_cfg_mhdr));
11101	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11102	LPFC_MBOX_OPCODE_QUERY_FW_CFG,
11103	length, LPFC_SLI4_MBX_EMBED);
11104
11105	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11106
11107	shdr = (union lpfc_sli4_cfg_shdr *)
11108	&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11109	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11110	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11111	if (shdr_status || shdr_add_status || rc) {
11112	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11113	"3250 QUERY_FW_CFG mailbox failed with status "
11114	"x%x add_status x%x, mbx status x%x\n",
11115	shdr_status, shdr_add_status, rc);
11116	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
11117	rc = -ENXIO;
11118	goto out_error;
11119	}
11120
11121	phba->sli4_hba.fw_func_mode =
11122	mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
11123	phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
11124	phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
11125	phba->sli4_hba.physical_port =
11126	mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
11127	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11128	"3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
11129	"ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
11130	phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
11131
11132	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
11133
11134	/*
11135	* Set up HBA Event Queues (EQs)
11136	*/
11137	qp = phba->sli4_hba.hdwq;
11138
11139	/* Set up HBA event queue */
11140	if (!qp) {
11141	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11142	"3147 Fast-path EQs not allocated\n");
11143	rc = -ENOMEM;
11144	goto out_error;
11145	}
11146
11147	/* Loop thru all IRQ vectors */
11148	for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11149	/* Create HBA Event Queues (EQs) in order */
11150	for_each_present_cpu(cpu) {
11151	cpup = &phba->sli4_hba.cpu_map[cpu];
11152
11153	/* Look for the CPU thats using that vector with
11154	* LPFC_CPU_FIRST_IRQ set.
11155	*/
11156	if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11157	continue;
11158	if (qidx != cpup->eq)
11159	continue;
11160
11161	/* Create an EQ for that vector */
11162	rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11163	phba->cfg_fcp_imax);
11164	if (rc) {
11165	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11166	"0523 Failed setup of fast-path"
11167	" EQ (%d), rc = 0x%x\n",
11168	cpup->eq, (uint32_t)rc);
11169	goto out_destroy;
11170	}
11171
11172	/* Save the EQ for that vector in the hba_eq_hdl */
11173	phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11174	qp[cpup->hdwq].hba_eq;
11175
11176	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11177	"2584 HBA EQ setup: queue[%d]-id=%d\n",
11178	cpup->eq,
11179	qp[cpup->hdwq].hba_eq->queue_id);
11180	}
11181	}
11182
11183	/* Loop thru all Hardware Queues */
11184	for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11185	cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11186	cpup = &phba->sli4_hba.cpu_map[cpu];
11187
11188	/* Create the CQ/WQ corresponding to the Hardware Queue */
11189	rc = lpfc_create_wq_cq(phba,
11190	eq: phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11191	cq: qp[qidx].io_cq,
11192	wq: qp[qidx].io_wq,
11193	cq_map: &phba->sli4_hba.hdwq[qidx].io_cq_map,
11194	qidx,
11195	qtype: LPFC_IO);
11196	if (rc) {
11197	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11198	"0535 Failed to setup fastpath "
11199	"IO WQ/CQ (%d), rc = 0x%x\n",
11200	qidx, (uint32_t)rc);
11201	goto out_destroy;
11202	}
11203	}
11204
11205	/*
11206	* Set up Slow Path Complete Queues (CQs)
11207	*/
11208
11209	/* Set up slow-path MBOX CQ/MQ */
11210
11211	if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11212	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11213	"0528 %s not allocated\n",
11214	phba->sli4_hba.mbx_cq ?
11215	"Mailbox WQ" : "Mailbox CQ");
11216	rc = -ENOMEM;
11217	goto out_destroy;
11218	}
11219
11220	rc = lpfc_create_wq_cq(phba, eq: qp[0].hba_eq,
11221	cq: phba->sli4_hba.mbx_cq,
11222	wq: phba->sli4_hba.mbx_wq,
11223	NULL, qidx: 0, qtype: LPFC_MBOX);
11224	if (rc) {
11225	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11226	"0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11227	(uint32_t)rc);
11228	goto out_destroy;
11229	}
11230	if (phba->nvmet_support) {
11231	if (!phba->sli4_hba.nvmet_cqset) {
11232	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11233	"3165 Fast-path NVME CQ Set "
11234	"array not allocated\n");
11235	rc = -ENOMEM;
11236	goto out_destroy;
11237	}
11238	if (phba->cfg_nvmet_mrq > 1) {
11239	rc = lpfc_cq_create_set(phba,
11240	cqp: phba->sli4_hba.nvmet_cqset,
11241	hdwq: qp,
11242	type: LPFC_WCQ, subtype: LPFC_NVMET);
11243	if (rc) {
11244	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11245	"3164 Failed setup of NVME CQ "
11246	"Set, rc = 0x%x\n",
11247	(uint32_t)rc);
11248	goto out_destroy;
11249	}
11250	} else {
11251	/* Set up NVMET Receive Complete Queue */
11252	rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11253	qp[0].hba_eq,
11254	LPFC_WCQ, LPFC_NVMET);
11255	if (rc) {
11256	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11257	"6089 Failed setup NVMET CQ: "
11258	"rc = 0x%x\n", (uint32_t)rc);
11259	goto out_destroy;
11260	}
11261	phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11262
11263	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11264	"6090 NVMET CQ setup: cq-id=%d, "
11265	"parent eq-id=%d\n",
11266	phba->sli4_hba.nvmet_cqset[0]->queue_id,
11267	qp[0].hba_eq->queue_id);
11268	}
11269	}
11270
11271	/* Set up slow-path ELS WQ/CQ */
11272	if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11273	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11274	"0530 ELS %s not allocated\n",
11275	phba->sli4_hba.els_cq ? "WQ" : "CQ");
11276	rc = -ENOMEM;
11277	goto out_destroy;
11278	}
11279	rc = lpfc_create_wq_cq(phba, eq: qp[0].hba_eq,
11280	cq: phba->sli4_hba.els_cq,
11281	wq: phba->sli4_hba.els_wq,
11282	NULL, qidx: 0, qtype: LPFC_ELS);
11283	if (rc) {
11284	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11285	"0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11286	(uint32_t)rc);
11287	goto out_destroy;
11288	}
11289	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11290	"2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11291	phba->sli4_hba.els_wq->queue_id,
11292	phba->sli4_hba.els_cq->queue_id);
11293
11294	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11295	/* Set up NVME LS Complete Queue */
11296	if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11297	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11298	"6091 LS %s not allocated\n",
11299	phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11300	rc = -ENOMEM;
11301	goto out_destroy;
11302	}
11303	rc = lpfc_create_wq_cq(phba, eq: qp[0].hba_eq,
11304	cq: phba->sli4_hba.nvmels_cq,
11305	wq: phba->sli4_hba.nvmels_wq,
11306	NULL, qidx: 0, qtype: LPFC_NVME_LS);
11307	if (rc) {
11308	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11309	"0526 Failed setup of NVVME LS WQ/CQ: "
11310	"rc = 0x%x\n", (uint32_t)rc);
11311	goto out_destroy;
11312	}
11313
11314	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11315	"6096 ELS WQ setup: wq-id=%d, "
11316	"parent cq-id=%d\n",
11317	phba->sli4_hba.nvmels_wq->queue_id,
11318	phba->sli4_hba.nvmels_cq->queue_id);
11319	}
11320
11321	/*
11322	* Create NVMET Receive Queue (RQ)
11323	*/
11324	if (phba->nvmet_support) {
11325	if ((!phba->sli4_hba.nvmet_cqset) ||
11326	(!phba->sli4_hba.nvmet_mrq_hdr) ||
11327	(!phba->sli4_hba.nvmet_mrq_data)) {
11328	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11329	"6130 MRQ CQ Queues not "
11330	"allocated\n");
11331	rc = -ENOMEM;
11332	goto out_destroy;
11333	}
11334	if (phba->cfg_nvmet_mrq > 1) {
11335	rc = lpfc_mrq_create(phba,
11336	hrqp: phba->sli4_hba.nvmet_mrq_hdr,
11337	drqp: phba->sli4_hba.nvmet_mrq_data,
11338	cqp: phba->sli4_hba.nvmet_cqset,
11339	subtype: LPFC_NVMET);
11340	if (rc) {
11341	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11342	"6098 Failed setup of NVMET "
11343	"MRQ: rc = 0x%x\n",
11344	(uint32_t)rc);
11345	goto out_destroy;
11346	}
11347
11348	} else {
11349	rc = lpfc_rq_create(phba,
11350	phba->sli4_hba.nvmet_mrq_hdr[0],
11351	phba->sli4_hba.nvmet_mrq_data[0],
11352	phba->sli4_hba.nvmet_cqset[0],
11353	LPFC_NVMET);
11354	if (rc) {
11355	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11356	"6057 Failed setup of NVMET "
11357	"Receive Queue: rc = 0x%x\n",
11358	(uint32_t)rc);
11359	goto out_destroy;
11360	}
11361
11362	lpfc_printf_log(
11363	phba, KERN_INFO, LOG_INIT,
11364	"6099 NVMET RQ setup: hdr-rq-id=%d, "
11365	"dat-rq-id=%d parent cq-id=%d\n",
11366	phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11367	phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11368	phba->sli4_hba.nvmet_cqset[0]->queue_id);
11369
11370	}
11371	}
11372
11373	if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11374	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11375	"0540 Receive Queue not allocated\n");
11376	rc = -ENOMEM;
11377	goto out_destroy;
11378	}
11379
11380	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11381	phba->sli4_hba.els_cq, LPFC_USOL);
11382	if (rc) {
11383	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11384	"0541 Failed setup of Receive Queue: "
11385	"rc = 0x%x\n", (uint32_t)rc);
11386	goto out_destroy;
11387	}
11388
11389	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11390	"2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11391	"parent cq-id=%d\n",
11392	phba->sli4_hba.hdr_rq->queue_id,
11393	phba->sli4_hba.dat_rq->queue_id,
11394	phba->sli4_hba.els_cq->queue_id);
11395
11396	if (phba->cfg_fcp_imax)
11397	usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11398	else
11399	usdelay = 0;
11400
11401	for (qidx = 0; qidx < phba->cfg_irq_chann;
11402	qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11403	lpfc_modify_hba_eq_delay(phba, startq: qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11404	usdelay);
11405
11406	if (phba->sli4_hba.cq_max) {
11407	kfree(objp: phba->sli4_hba.cq_lookup);
11408	phba->sli4_hba.cq_lookup = kcalloc(n: (phba->sli4_hba.cq_max + 1),
11409	size: sizeof(struct lpfc_queue *), GFP_KERNEL);
11410	if (!phba->sli4_hba.cq_lookup) {
11411	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11412	"0549 Failed setup of CQ Lookup table: "
11413	"size 0x%x\n", phba->sli4_hba.cq_max);
11414	rc = -ENOMEM;
11415	goto out_destroy;
11416	}
11417	lpfc_setup_cq_lookup(phba);
11418	}
11419	return 0;
11420
11421	out_destroy:
11422	lpfc_sli4_queue_unset(phba);
11423	out_error:
11424	return rc;
11425	}
11426
11427	/**
11428	* lpfc_sli4_queue_unset - Unset all the SLI4 queues
11429	* @phba: pointer to lpfc hba data structure.
11430	*
11431	* This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11432	* operation.
11433	*
11434	* Return codes
11435	* 0 - successful
11436	* -ENOMEM - No available memory
11437	* -EIO - The mailbox failed to complete successfully.
11438	**/
11439	void
11440	lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11441	{
11442	struct lpfc_sli4_hdw_queue *qp;
11443	struct lpfc_queue *eq;
11444	int qidx;
11445
11446	/* Unset mailbox command work queue */
11447	if (phba->sli4_hba.mbx_wq)
11448	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11449
11450	/* Unset NVME LS work queue */
11451	if (phba->sli4_hba.nvmels_wq)
11452	lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11453
11454	/* Unset ELS work queue */
11455	if (phba->sli4_hba.els_wq)
11456	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11457
11458	/* Unset unsolicited receive queue */
11459	if (phba->sli4_hba.hdr_rq)
11460	lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11461	phba->sli4_hba.dat_rq);
11462
11463	/* Unset mailbox command complete queue */
11464	if (phba->sli4_hba.mbx_cq)
11465	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11466
11467	/* Unset ELS complete queue */
11468	if (phba->sli4_hba.els_cq)
11469	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11470
11471	/* Unset NVME LS complete queue */
11472	if (phba->sli4_hba.nvmels_cq)
11473	lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11474
11475	if (phba->nvmet_support) {
11476	/* Unset NVMET MRQ queue */
11477	if (phba->sli4_hba.nvmet_mrq_hdr) {
11478	for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11479	lpfc_rq_destroy(
11480	phba,
11481	phba->sli4_hba.nvmet_mrq_hdr[qidx],
11482	phba->sli4_hba.nvmet_mrq_data[qidx]);
11483	}
11484
11485	/* Unset NVMET CQ Set complete queue */
11486	if (phba->sli4_hba.nvmet_cqset) {
11487	for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11488	lpfc_cq_destroy(
11489	phba, phba->sli4_hba.nvmet_cqset[qidx]);
11490	}
11491	}
11492
11493	/* Unset fast-path SLI4 queues */
11494	if (phba->sli4_hba.hdwq) {
11495	/* Loop thru all Hardware Queues */
11496	for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11497	/* Destroy the CQ/WQ corresponding to Hardware Queue */
11498	qp = &phba->sli4_hba.hdwq[qidx];
11499	lpfc_wq_destroy(phba, qp->io_wq);
11500	lpfc_cq_destroy(phba, qp->io_cq);
11501	}
11502	/* Loop thru all IRQ vectors */
11503	for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11504	/* Destroy the EQ corresponding to the IRQ vector */
11505	eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11506	lpfc_eq_destroy(phba, eq);
11507	}
11508	}
11509
11510	kfree(objp: phba->sli4_hba.cq_lookup);
11511	phba->sli4_hba.cq_lookup = NULL;
11512	phba->sli4_hba.cq_max = 0;
11513	}
11514
11515	/**
11516	* lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11517	* @phba: pointer to lpfc hba data structure.
11518	*
11519	* This routine is invoked to allocate and set up a pool of completion queue
11520	* events. The body of the completion queue event is a completion queue entry
11521	* CQE. For now, this pool is used for the interrupt service routine to queue
11522	* the following HBA completion queue events for the worker thread to process:
11523	* - Mailbox asynchronous events
11524	* - Receive queue completion unsolicited events
11525	* Later, this can be used for all the slow-path events.
11526	*
11527	* Return codes
11528	* 0 - successful
11529	* -ENOMEM - No available memory
11530	**/
11531	static int
11532	lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11533	{
11534	struct lpfc_cq_event *cq_event;
11535	int i;
11536
11537	for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11538	cq_event = kmalloc(size: sizeof(struct lpfc_cq_event), GFP_KERNEL);
11539	if (!cq_event)
11540	goto out_pool_create_fail;
11541	list_add_tail(new: &cq_event->list,
11542	head: &phba->sli4_hba.sp_cqe_event_pool);
11543	}
11544	return 0;
11545
11546	out_pool_create_fail:
11547	lpfc_sli4_cq_event_pool_destroy(phba);
11548	return -ENOMEM;
11549	}
11550
11551	/**
11552	* lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11553	* @phba: pointer to lpfc hba data structure.
11554	*
11555	* This routine is invoked to free the pool of completion queue events at
11556	* driver unload time. Note that, it is the responsibility of the driver
11557	* cleanup routine to free all the outstanding completion-queue events
11558	* allocated from this pool back into the pool before invoking this routine
11559	* to destroy the pool.
11560	**/
11561	static void
11562	lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11563	{
11564	struct lpfc_cq_event *cq_event, *next_cq_event;
11565
11566	list_for_each_entry_safe(cq_event, next_cq_event,
11567	&phba->sli4_hba.sp_cqe_event_pool, list) {
11568	list_del(entry: &cq_event->list);
11569	kfree(objp: cq_event);
11570	}
11571	}
11572
11573	/**
11574	* __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11575	* @phba: pointer to lpfc hba data structure.
11576	*
11577	* This routine is the lock free version of the API invoked to allocate a
11578	* completion-queue event from the free pool.
11579	*
11580	* Return: Pointer to the newly allocated completion-queue event if successful
11581	* NULL otherwise.
11582	**/
11583	struct lpfc_cq_event *
11584	__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11585	{
11586	struct lpfc_cq_event *cq_event = NULL;
11587
11588	list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11589	struct lpfc_cq_event, list);
11590	return cq_event;
11591	}
11592
11593	/**
11594	* lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11595	* @phba: pointer to lpfc hba data structure.
11596	*
11597	* This routine is the lock version of the API invoked to allocate a
11598	* completion-queue event from the free pool.
11599	*
11600	* Return: Pointer to the newly allocated completion-queue event if successful
11601	* NULL otherwise.
11602	**/
11603	struct lpfc_cq_event *
11604	lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11605	{
11606	struct lpfc_cq_event *cq_event;
11607	unsigned long iflags;
11608
11609	spin_lock_irqsave(&phba->hbalock, iflags);
11610	cq_event = __lpfc_sli4_cq_event_alloc(phba);
11611	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflags);
11612	return cq_event;
11613	}
11614
11615	/**
11616	* __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11617	* @phba: pointer to lpfc hba data structure.
11618	* @cq_event: pointer to the completion queue event to be freed.
11619	*
11620	* This routine is the lock free version of the API invoked to release a
11621	* completion-queue event back into the free pool.
11622	**/
11623	void
11624	__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11625	struct lpfc_cq_event *cq_event)
11626	{
11627	list_add_tail(new: &cq_event->list, head: &phba->sli4_hba.sp_cqe_event_pool);
11628	}
11629
11630	/**
11631	* lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11632	* @phba: pointer to lpfc hba data structure.
11633	* @cq_event: pointer to the completion queue event to be freed.
11634	*
11635	* This routine is the lock version of the API invoked to release a
11636	* completion-queue event back into the free pool.
11637	**/
11638	void
11639	lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11640	struct lpfc_cq_event *cq_event)
11641	{
11642	unsigned long iflags;
11643	spin_lock_irqsave(&phba->hbalock, iflags);
11644	__lpfc_sli4_cq_event_release(phba, cq_event);
11645	spin_unlock_irqrestore(lock: &phba->hbalock, flags: iflags);
11646	}
11647
11648	/**
11649	* lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11650	* @phba: pointer to lpfc hba data structure.
11651	*
11652	* This routine is to free all the pending completion-queue events to the
11653	* back into the free pool for device reset.
11654	**/
11655	static void
11656	lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11657	{
11658	LIST_HEAD(cq_event_list);
11659	struct lpfc_cq_event *cq_event;
11660	unsigned long iflags;
11661
11662	/* Retrieve all the pending WCQEs from pending WCQE lists */
11663
11664	/* Pending ELS XRI abort events */
11665	spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11666	list_splice_init(list: &phba->sli4_hba.sp_els_xri_aborted_work_queue,
11667	head: &cq_event_list);
11668	spin_unlock_irqrestore(lock: &phba->sli4_hba.els_xri_abrt_list_lock, flags: iflags);
11669
11670	/* Pending asynnc events */
11671	spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11672	list_splice_init(list: &phba->sli4_hba.sp_asynce_work_queue,
11673	head: &cq_event_list);
11674	spin_unlock_irqrestore(lock: &phba->sli4_hba.asynce_list_lock, flags: iflags);
11675
11676	while (!list_empty(head: &cq_event_list)) {
11677	list_remove_head(&cq_event_list, cq_event,
11678	struct lpfc_cq_event, list);
11679	lpfc_sli4_cq_event_release(phba, cq_event);
11680	}
11681	}
11682
11683	/**
11684	* lpfc_pci_function_reset - Reset pci function.
11685	* @phba: pointer to lpfc hba data structure.
11686	*
11687	* This routine is invoked to request a PCI function reset. It will destroys
11688	* all resources assigned to the PCI function which originates this request.
11689	*
11690	* Return codes
11691	* 0 - successful
11692	* -ENOMEM - No available memory
11693	* -EIO - The mailbox failed to complete successfully.
11694	**/
11695	int
11696	lpfc_pci_function_reset(struct lpfc_hba *phba)
11697	{
11698	LPFC_MBOXQ_t *mboxq;
11699	uint32_t rc = 0, if_type;
11700	uint32_t shdr_status, shdr_add_status;
11701	uint32_t rdy_chk;
11702	uint32_t port_reset = 0;
11703	union lpfc_sli4_cfg_shdr *shdr;
11704	struct lpfc_register reg_data;
11705	uint16_t devid;
11706
11707	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11708	switch (if_type) {
11709	case LPFC_SLI_INTF_IF_TYPE_0:
11710	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool,
11711	GFP_KERNEL);
11712	if (!mboxq) {
11713	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11714	"0494 Unable to allocate memory for "
11715	"issuing SLI_FUNCTION_RESET mailbox "
11716	"command\n");
11717	return -ENOMEM;
11718	}
11719
11720	/* Setup PCI function reset mailbox-ioctl command */
11721	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11722	LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11723	LPFC_SLI4_MBX_EMBED);
11724	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11725	shdr = (union lpfc_sli4_cfg_shdr *)
11726	&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11727	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11728	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11729	&shdr->response);
11730	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
11731	if (shdr_status || shdr_add_status || rc) {
11732	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11733	"0495 SLI_FUNCTION_RESET mailbox "
11734	"failed with status x%x add_status x%x,"
11735	" mbx status x%x\n",
11736	shdr_status, shdr_add_status, rc);
11737	rc = -ENXIO;
11738	}
11739	break;
11740	case LPFC_SLI_INTF_IF_TYPE_2:
11741	case LPFC_SLI_INTF_IF_TYPE_6:
11742	wait:
11743	/*
11744	* Poll the Port Status Register and wait for RDY for
11745	* up to 30 seconds. If the port doesn't respond, treat
11746	* it as an error.
11747	*/
11748	for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11749	if (lpfc_readl(addr: phba->sli4_hba.u.if_type2.
11750	STATUSregaddr, data: &reg_data.word0)) {
11751	rc = -ENODEV;
11752	goto out;
11753	}
11754	if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11755	break;
11756	msleep(msecs: 20);
11757	}
11758
11759	if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11760	phba->work_status[0] = readl(
11761	addr: phba->sli4_hba.u.if_type2.ERR1regaddr);
11762	phba->work_status[1] = readl(
11763	addr: phba->sli4_hba.u.if_type2.ERR2regaddr);
11764	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11765	"2890 Port not ready, port status reg "
11766	"0x%x error 1=0x%x, error 2=0x%x\n",
11767	reg_data.word0,
11768	phba->work_status[0],
11769	phba->work_status[1]);
11770	rc = -ENODEV;
11771	goto out;
11772	}
11773
11774	if (bf_get(lpfc_sliport_status_pldv, &reg_data))
11775	lpfc_pldv_detect = true;
11776
11777	if (!port_reset) {
11778	/*
11779	* Reset the port now
11780	*/
11781	reg_data.word0 = 0;
11782	bf_set(lpfc_sliport_ctrl_end, &reg_data,
11783	LPFC_SLIPORT_LITTLE_ENDIAN);
11784	bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11785	LPFC_SLIPORT_INIT_PORT);
11786	writel(val: reg_data.word0, addr: phba->sli4_hba.u.if_type2.
11787	CTRLregaddr);
11788	/* flush */
11789	pci_read_config_word(dev: phba->pcidev,
11790	PCI_DEVICE_ID, val: &devid);
11791
11792	port_reset = 1;
11793	msleep(msecs: 20);
11794	goto wait;
11795	} else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11796	rc = -ENODEV;
11797	goto out;
11798	}
11799	break;
11800
11801	case LPFC_SLI_INTF_IF_TYPE_1:
11802	default:
11803	break;
11804	}
11805
11806	out:
11807	/* Catch the not-ready port failure after a port reset. */
11808	if (rc) {
11809	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11810	"3317 HBA not functional: IP Reset Failed "
11811	"try: echo fw_reset > board_mode\n");
11812	rc = -ENODEV;
11813	}
11814
11815	return rc;
11816	}
11817
11818	/**
11819	* lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11820	* @phba: pointer to lpfc hba data structure.
11821	*
11822	* This routine is invoked to set up the PCI device memory space for device
11823	* with SLI-4 interface spec.
11824	*
11825	* Return codes
11826	* 0 - successful
11827	* other values - error
11828	**/
11829	static int
11830	lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11831	{
11832	struct pci_dev *pdev = phba->pcidev;
11833	unsigned long bar0map_len, bar1map_len, bar2map_len;
11834	int error;
11835	uint32_t if_type;
11836
11837	if (!pdev)
11838	return -ENODEV;
11839
11840	/* Set the device DMA mask size */
11841	error = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(64));
11842	if (error)
11843	error = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(32));
11844	if (error)
11845	return error;
11846
11847	/*
11848	* The BARs and register set definitions and offset locations are
11849	* dependent on the if_type.
11850	*/
11851	if (pci_read_config_dword(dev: pdev, LPFC_SLI_INTF,
11852	val: &phba->sli4_hba.sli_intf.word0)) {
11853	return -ENODEV;
11854	}
11855
11856	/* There is no SLI3 failback for SLI4 devices. */
11857	if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11858	LPFC_SLI_INTF_VALID) {
11859	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11860	"2894 SLI_INTF reg contents invalid "
11861	"sli_intf reg 0x%x\n",
11862	phba->sli4_hba.sli_intf.word0);
11863	return -ENODEV;
11864	}
11865
11866	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11867	/*
11868	* Get the bus address of SLI4 device Bar regions and the
11869	* number of bytes required by each mapping. The mapping of the
11870	* particular PCI BARs regions is dependent on the type of
11871	* SLI4 device.
11872	*/
11873	if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11874	phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11875	bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11876
11877	/*
11878	* Map SLI4 PCI Config Space Register base to a kernel virtual
11879	* addr
11880	*/
11881	phba->sli4_hba.conf_regs_memmap_p =
11882	ioremap(offset: phba->pci_bar0_map, size: bar0map_len);
11883	if (!phba->sli4_hba.conf_regs_memmap_p) {
11884	dev_printk(KERN_ERR, &pdev->dev,
11885	"ioremap failed for SLI4 PCI config "
11886	"registers.\n");
11887	return -ENODEV;
11888	}
11889	phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11890	/* Set up BAR0 PCI config space register memory map */
11891	lpfc_sli4_bar0_register_memmap(phba, if_type);
11892	} else {
11893	phba->pci_bar0_map = pci_resource_start(pdev, 1);
11894	bar0map_len = pci_resource_len(pdev, 1);
11895	if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11896	dev_printk(KERN_ERR, &pdev->dev,
11897	"FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11898	return -ENODEV;
11899	}
11900	phba->sli4_hba.conf_regs_memmap_p =
11901	ioremap(offset: phba->pci_bar0_map, size: bar0map_len);
11902	if (!phba->sli4_hba.conf_regs_memmap_p) {
11903	dev_printk(KERN_ERR, &pdev->dev,
11904	"ioremap failed for SLI4 PCI config "
11905	"registers.\n");
11906	return -ENODEV;
11907	}
11908	lpfc_sli4_bar0_register_memmap(phba, if_type);
11909	}
11910
11911	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11912	if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11913	/*
11914	* Map SLI4 if type 0 HBA Control Register base to a
11915	* kernel virtual address and setup the registers.
11916	*/
11917	phba->pci_bar1_map = pci_resource_start(pdev,
11918	PCI_64BIT_BAR2);
11919	bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11920	phba->sli4_hba.ctrl_regs_memmap_p =
11921	ioremap(offset: phba->pci_bar1_map,
11922	size: bar1map_len);
11923	if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11924	dev_err(&pdev->dev,
11925	"ioremap failed for SLI4 HBA "
11926	"control registers.\n");
11927	error = -ENOMEM;
11928	goto out_iounmap_conf;
11929	}
11930	phba->pci_bar2_memmap_p =
11931	phba->sli4_hba.ctrl_regs_memmap_p;
11932	lpfc_sli4_bar1_register_memmap(phba, if_type);
11933	} else {
11934	error = -ENOMEM;
11935	goto out_iounmap_conf;
11936	}
11937	}
11938
11939	if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11940	(pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11941	/*
11942	* Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11943	* virtual address and setup the registers.
11944	*/
11945	phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11946	bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11947	phba->sli4_hba.drbl_regs_memmap_p =
11948	ioremap(offset: phba->pci_bar1_map, size: bar1map_len);
11949	if (!phba->sli4_hba.drbl_regs_memmap_p) {
11950	dev_err(&pdev->dev,
11951	"ioremap failed for SLI4 HBA doorbell registers.\n");
11952	error = -ENOMEM;
11953	goto out_iounmap_conf;
11954	}
11955	phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11956	lpfc_sli4_bar1_register_memmap(phba, if_type);
11957	}
11958
11959	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11960	if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11961	/*
11962	* Map SLI4 if type 0 HBA Doorbell Register base to
11963	* a kernel virtual address and setup the registers.
11964	*/
11965	phba->pci_bar2_map = pci_resource_start(pdev,
11966	PCI_64BIT_BAR4);
11967	bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11968	phba->sli4_hba.drbl_regs_memmap_p =
11969	ioremap(offset: phba->pci_bar2_map,
11970	size: bar2map_len);
11971	if (!phba->sli4_hba.drbl_regs_memmap_p) {
11972	dev_err(&pdev->dev,
11973	"ioremap failed for SLI4 HBA"
11974	" doorbell registers.\n");
11975	error = -ENOMEM;
11976	goto out_iounmap_ctrl;
11977	}
11978	phba->pci_bar4_memmap_p =
11979	phba->sli4_hba.drbl_regs_memmap_p;
11980	error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11981	if (error)
11982	goto out_iounmap_all;
11983	} else {
11984	error = -ENOMEM;
11985	goto out_iounmap_ctrl;
11986	}
11987	}
11988
11989	if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11990	pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11991	/*
11992	* Map SLI4 if type 6 HBA DPP Register base to a kernel
11993	* virtual address and setup the registers.
11994	*/
11995	phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11996	bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11997	phba->sli4_hba.dpp_regs_memmap_p =
11998	ioremap(offset: phba->pci_bar2_map, size: bar2map_len);
11999	if (!phba->sli4_hba.dpp_regs_memmap_p) {
12000	dev_err(&pdev->dev,
12001	"ioremap failed for SLI4 HBA dpp registers.\n");
12002	error = -ENOMEM;
12003	goto out_iounmap_all;
12004	}
12005	phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
12006	}
12007
12008	/* Set up the EQ/CQ register handeling functions now */
12009	switch (if_type) {
12010	case LPFC_SLI_INTF_IF_TYPE_0:
12011	case LPFC_SLI_INTF_IF_TYPE_2:
12012	phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
12013	phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
12014	phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
12015	break;
12016	case LPFC_SLI_INTF_IF_TYPE_6:
12017	phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
12018	phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
12019	phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
12020	break;
12021	default:
12022	break;
12023	}
12024
12025	return 0;
12026
12027	out_iounmap_all:
12028	if (phba->sli4_hba.drbl_regs_memmap_p)
12029	iounmap(addr: phba->sli4_hba.drbl_regs_memmap_p);
12030	out_iounmap_ctrl:
12031	if (phba->sli4_hba.ctrl_regs_memmap_p)
12032	iounmap(addr: phba->sli4_hba.ctrl_regs_memmap_p);
12033	out_iounmap_conf:
12034	iounmap(addr: phba->sli4_hba.conf_regs_memmap_p);
12035
12036	return error;
12037	}
12038
12039	/**
12040	* lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
12041	* @phba: pointer to lpfc hba data structure.
12042	*
12043	* This routine is invoked to unset the PCI device memory space for device
12044	* with SLI-4 interface spec.
12045	**/
12046	static void
12047	lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
12048	{
12049	uint32_t if_type;
12050	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12051
12052	switch (if_type) {
12053	case LPFC_SLI_INTF_IF_TYPE_0:
12054	iounmap(addr: phba->sli4_hba.drbl_regs_memmap_p);
12055	iounmap(addr: phba->sli4_hba.ctrl_regs_memmap_p);
12056	iounmap(addr: phba->sli4_hba.conf_regs_memmap_p);
12057	break;
12058	case LPFC_SLI_INTF_IF_TYPE_2:
12059	iounmap(addr: phba->sli4_hba.conf_regs_memmap_p);
12060	break;
12061	case LPFC_SLI_INTF_IF_TYPE_6:
12062	iounmap(addr: phba->sli4_hba.drbl_regs_memmap_p);
12063	iounmap(addr: phba->sli4_hba.conf_regs_memmap_p);
12064	if (phba->sli4_hba.dpp_regs_memmap_p)
12065	iounmap(addr: phba->sli4_hba.dpp_regs_memmap_p);
12066	break;
12067	case LPFC_SLI_INTF_IF_TYPE_1:
12068	break;
12069	default:
12070	dev_printk(KERN_ERR, &phba->pcidev->dev,
12071	"FATAL - unsupported SLI4 interface type - %d\n",
12072	if_type);
12073	break;
12074	}
12075	}
12076
12077	/**
12078	* lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
12079	* @phba: pointer to lpfc hba data structure.
12080	*
12081	* This routine is invoked to enable the MSI-X interrupt vectors to device
12082	* with SLI-3 interface specs.
12083	*
12084	* Return codes
12085	* 0 - successful
12086	* other values - error
12087	**/
12088	static int
12089	lpfc_sli_enable_msix(struct lpfc_hba *phba)
12090	{
12091	int rc;
12092	LPFC_MBOXQ_t *pmb;
12093
12094	/* Set up MSI-X multi-message vectors */
12095	rc = pci_alloc_irq_vectors(dev: phba->pcidev,
12096	LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
12097	if (rc < 0) {
12098	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12099	"0420 PCI enable MSI-X failed (%d)\n", rc);
12100	goto vec_fail_out;
12101	}
12102
12103	/*
12104	* Assign MSI-X vectors to interrupt handlers
12105	*/
12106
12107	/* vector-0 is associated to slow-path handler */
12108	rc = request_irq(irq: pci_irq_vector(dev: phba->pcidev, nr: 0),
12109	handler: &lpfc_sli_sp_intr_handler, flags: 0,
12110	LPFC_SP_DRIVER_HANDLER_NAME, dev: phba);
12111	if (rc) {
12112	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12113	"0421 MSI-X slow-path request_irq failed "
12114	"(%d)\n", rc);
12115	goto msi_fail_out;
12116	}
12117
12118	/* vector-1 is associated to fast-path handler */
12119	rc = request_irq(irq: pci_irq_vector(dev: phba->pcidev, nr: 1),
12120	handler: &lpfc_sli_fp_intr_handler, flags: 0,
12121	LPFC_FP_DRIVER_HANDLER_NAME, dev: phba);
12122
12123	if (rc) {
12124	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12125	"0429 MSI-X fast-path request_irq failed "
12126	"(%d)\n", rc);
12127	goto irq_fail_out;
12128	}
12129
12130	/*
12131	* Configure HBA MSI-X attention conditions to messages
12132	*/
12133	pmb = (LPFC_MBOXQ_t *) mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
12134
12135	if (!pmb) {
12136	rc = -ENOMEM;
12137	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12138	"0474 Unable to allocate memory for issuing "
12139	"MBOX_CONFIG_MSI command\n");
12140	goto mem_fail_out;
12141	}
12142	rc = lpfc_config_msi(phba, pmb);
12143	if (rc)
12144	goto mbx_fail_out;
12145	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12146	if (rc != MBX_SUCCESS) {
12147	lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12148	"0351 Config MSI mailbox command failed, "
12149	"mbxCmd x%x, mbxStatus x%x\n",
12150	pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12151	goto mbx_fail_out;
12152	}
12153
12154	/* Free memory allocated for mailbox command */
12155	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
12156	return rc;
12157
12158	mbx_fail_out:
12159	/* Free memory allocated for mailbox command */
12160	mempool_free(element: pmb, pool: phba->mbox_mem_pool);
12161
12162	mem_fail_out:
12163	/* free the irq already requested */
12164	free_irq(pci_irq_vector(dev: phba->pcidev, nr: 1), phba);
12165
12166	irq_fail_out:
12167	/* free the irq already requested */
12168	free_irq(pci_irq_vector(dev: phba->pcidev, nr: 0), phba);
12169
12170	msi_fail_out:
12171	/* Unconfigure MSI-X capability structure */
12172	pci_free_irq_vectors(dev: phba->pcidev);
12173
12174	vec_fail_out:
12175	return rc;
12176	}
12177
12178	/**
12179	* lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12180	* @phba: pointer to lpfc hba data structure.
12181	*
12182	* This routine is invoked to enable the MSI interrupt mode to device with
12183	* SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12184	* enable the MSI vector. The device driver is responsible for calling the
12185	* request_irq() to register MSI vector with a interrupt the handler, which
12186	* is done in this function.
12187	*
12188	* Return codes
12189	* 0 - successful
12190	* other values - error
12191	*/
12192	static int
12193	lpfc_sli_enable_msi(struct lpfc_hba *phba)
12194	{
12195	int rc;
12196
12197	rc = pci_enable_msi(dev: phba->pcidev);
12198	if (!rc)
12199	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12200	"0012 PCI enable MSI mode success.\n");
12201	else {
12202	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12203	"0471 PCI enable MSI mode failed (%d)\n", rc);
12204	return rc;
12205	}
12206
12207	rc = request_irq(irq: phba->pcidev->irq, handler: lpfc_sli_intr_handler,
12208	flags: 0, LPFC_DRIVER_NAME, dev: phba);
12209	if (rc) {
12210	pci_disable_msi(dev: phba->pcidev);
12211	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12212	"0478 MSI request_irq failed (%d)\n", rc);
12213	}
12214	return rc;
12215	}
12216
12217	/**
12218	* lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12219	* @phba: pointer to lpfc hba data structure.
12220	* @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12221	*
12222	* This routine is invoked to enable device interrupt and associate driver's
12223	* interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12224	* spec. Depends on the interrupt mode configured to the driver, the driver
12225	* will try to fallback from the configured interrupt mode to an interrupt
12226	* mode which is supported by the platform, kernel, and device in the order
12227	* of:
12228	* MSI-X -> MSI -> IRQ.
12229	*
12230	* Return codes
12231	* 0 - successful
12232	* other values - error
12233	**/
12234	static uint32_t
12235	lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12236	{
12237	uint32_t intr_mode = LPFC_INTR_ERROR;
12238	int retval;
12239
12240	/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12241	retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12242	if (retval)
12243	return intr_mode;
12244	phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12245
12246	if (cfg_mode == 2) {
12247	/* Now, try to enable MSI-X interrupt mode */
12248	retval = lpfc_sli_enable_msix(phba);
12249	if (!retval) {
12250	/* Indicate initialization to MSI-X mode */
12251	phba->intr_type = MSIX;
12252	intr_mode = 2;
12253	}
12254	}
12255
12256	/* Fallback to MSI if MSI-X initialization failed */
12257	if (cfg_mode >= 1 && phba->intr_type == NONE) {
12258	retval = lpfc_sli_enable_msi(phba);
12259	if (!retval) {
12260	/* Indicate initialization to MSI mode */
12261	phba->intr_type = MSI;
12262	intr_mode = 1;
12263	}
12264	}
12265
12266	/* Fallback to INTx if both MSI-X/MSI initalization failed */
12267	if (phba->intr_type == NONE) {
12268	retval = request_irq(irq: phba->pcidev->irq, handler: lpfc_sli_intr_handler,
12269	IRQF_SHARED, LPFC_DRIVER_NAME, dev: phba);
12270	if (!retval) {
12271	/* Indicate initialization to INTx mode */
12272	phba->intr_type = INTx;
12273	intr_mode = 0;
12274	}
12275	}
12276	return intr_mode;
12277	}
12278
12279	/**
12280	* lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12281	* @phba: pointer to lpfc hba data structure.
12282	*
12283	* This routine is invoked to disable device interrupt and disassociate the
12284	* driver's interrupt handler(s) from interrupt vector(s) to device with
12285	* SLI-3 interface spec. Depending on the interrupt mode, the driver will
12286	* release the interrupt vector(s) for the message signaled interrupt.
12287	**/
12288	static void
12289	lpfc_sli_disable_intr(struct lpfc_hba *phba)
12290	{
12291	int nr_irqs, i;
12292
12293	if (phba->intr_type == MSIX)
12294	nr_irqs = LPFC_MSIX_VECTORS;
12295	else
12296	nr_irqs = 1;
12297
12298	for (i = 0; i < nr_irqs; i++)
12299	free_irq(pci_irq_vector(dev: phba->pcidev, nr: i), phba);
12300	pci_free_irq_vectors(dev: phba->pcidev);
12301
12302	/* Reset interrupt management states */
12303	phba->intr_type = NONE;
12304	phba->sli.slistat.sli_intr = 0;
12305	}
12306
12307	/**
12308	* lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12309	* @phba: pointer to lpfc hba data structure.
12310	* @id: EQ vector index or Hardware Queue index
12311	* @match: LPFC_FIND_BY_EQ = match by EQ
12312	* LPFC_FIND_BY_HDWQ = match by Hardware Queue
12313	* Return the CPU that matches the selection criteria
12314	*/
12315	static uint16_t
12316	lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12317	{
12318	struct lpfc_vector_map_info *cpup;
12319	int cpu;
12320
12321	/* Loop through all CPUs */
12322	for_each_present_cpu(cpu) {
12323	cpup = &phba->sli4_hba.cpu_map[cpu];
12324
12325	/* If we are matching by EQ, there may be multiple CPUs using
12326	* using the same vector, so select the one with
12327	* LPFC_CPU_FIRST_IRQ set.
12328	*/
12329	if ((match == LPFC_FIND_BY_EQ) &&
12330	(cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12331	(cpup->eq == id))
12332	return cpu;
12333
12334	/* If matching by HDWQ, select the first CPU that matches */
12335	if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12336	return cpu;
12337	}
12338	return 0;
12339	}
12340
12341	#ifdef CONFIG_X86
12342	/**
12343	* lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12344	* @phba: pointer to lpfc hba data structure.
12345	* @cpu: CPU map index
12346	* @phys_id: CPU package physical id
12347	* @core_id: CPU core id
12348	*/
12349	static int
12350	lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12351	uint16_t phys_id, uint16_t core_id)
12352	{
12353	struct lpfc_vector_map_info *cpup;
12354	int idx;
12355
12356	for_each_present_cpu(idx) {
12357	cpup = &phba->sli4_hba.cpu_map[idx];
12358	/* Does the cpup match the one we are looking for */
12359	if ((cpup->phys_id == phys_id) &&
12360	(cpup->core_id == core_id) &&
12361	(cpu != idx))
12362	return 1;
12363	}
12364	return 0;
12365	}
12366	#endif
12367
12368	/*
12369	* lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12370	* @phba: pointer to lpfc hba data structure.
12371	* @eqidx: index for eq and irq vector
12372	* @flag: flags to set for vector_map structure
12373	* @cpu: cpu used to index vector_map structure
12374	*
12375	* The routine assigns eq info into vector_map structure
12376	*/
12377	static inline void
12378	lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12379	unsigned int cpu)
12380	{
12381	struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12382	struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12383
12384	cpup->eq = eqidx;
12385	cpup->flag |= flag;
12386
12387	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12388	"3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12389	cpu, eqhdl->irq, cpup->eq, cpup->flag);
12390	}
12391
12392	/**
12393	* lpfc_cpu_map_array_init - Initialize cpu_map structure
12394	* @phba: pointer to lpfc hba data structure.
12395	*
12396	* The routine initializes the cpu_map array structure
12397	*/
12398	static void
12399	lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12400	{
12401	struct lpfc_vector_map_info *cpup;
12402	struct lpfc_eq_intr_info *eqi;
12403	int cpu;
12404
12405	for_each_possible_cpu(cpu) {
12406	cpup = &phba->sli4_hba.cpu_map[cpu];
12407	cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12408	cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12409	cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12410	cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12411	cpup->flag = 0;
12412	eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12413	INIT_LIST_HEAD(list: &eqi->list);
12414	eqi->icnt = 0;
12415	}
12416	}
12417
12418	/**
12419	* lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12420	* @phba: pointer to lpfc hba data structure.
12421	*
12422	* The routine initializes the hba_eq_hdl array structure
12423	*/
12424	static void
12425	lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12426	{
12427	struct lpfc_hba_eq_hdl *eqhdl;
12428	int i;
12429
12430	for (i = 0; i < phba->cfg_irq_chann; i++) {
12431	eqhdl = lpfc_get_eq_hdl(i);
12432	eqhdl->irq = LPFC_IRQ_EMPTY;
12433	eqhdl->phba = phba;
12434	}
12435	}
12436
12437	/**
12438	* lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12439	* @phba: pointer to lpfc hba data structure.
12440	* @vectors: number of msix vectors allocated.
12441	*
12442	* The routine will figure out the CPU affinity assignment for every
12443	* MSI-X vector allocated for the HBA.
12444	* In addition, the CPU to IO channel mapping will be calculated
12445	* and the phba->sli4_hba.cpu_map array will reflect this.
12446	*/
12447	static void
12448	lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12449	{
12450	int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12451	int max_phys_id, min_phys_id;
12452	int max_core_id, min_core_id;
12453	struct lpfc_vector_map_info *cpup;
12454	struct lpfc_vector_map_info *new_cpup;
12455	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12456	struct lpfc_hdwq_stat *c_stat;
12457	#endif
12458
12459	max_phys_id = 0;
12460	min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12461	max_core_id = 0;
12462	min_core_id = LPFC_VECTOR_MAP_EMPTY;
12463
12464	/* Update CPU map with physical id and core id of each CPU */
12465	for_each_present_cpu(cpu) {
12466	cpup = &phba->sli4_hba.cpu_map[cpu];
12467	#ifdef CONFIG_X86
12468	cpup->phys_id = topology_physical_package_id(cpu);
12469	cpup->core_id = topology_core_id(cpu);
12470	if (lpfc_find_hyper(phba, cpu, phys_id: cpup->phys_id, core_id: cpup->core_id))
12471	cpup->flag |= LPFC_CPU_MAP_HYPER;
12472	#else
12473	/* No distinction between CPUs for other platforms */
12474	cpup->phys_id = 0;
12475	cpup->core_id = cpu;
12476	#endif
12477
12478	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12479	"3328 CPU %d physid %d coreid %d flag x%x\n",
12480	cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12481
12482	if (cpup->phys_id > max_phys_id)
12483	max_phys_id = cpup->phys_id;
12484	if (cpup->phys_id < min_phys_id)
12485	min_phys_id = cpup->phys_id;
12486
12487	if (cpup->core_id > max_core_id)
12488	max_core_id = cpup->core_id;
12489	if (cpup->core_id < min_core_id)
12490	min_core_id = cpup->core_id;
12491	}
12492
12493	/* After looking at each irq vector assigned to this pcidev, its
12494	* possible to see that not ALL CPUs have been accounted for.
12495	* Next we will set any unassigned (unaffinitized) cpu map
12496	* entries to a IRQ on the same phys_id.
12497	*/
12498	first_cpu = cpumask_first(cpu_present_mask);
12499	start_cpu = first_cpu;
12500
12501	for_each_present_cpu(cpu) {
12502	cpup = &phba->sli4_hba.cpu_map[cpu];
12503
12504	/* Is this CPU entry unassigned */
12505	if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12506	/* Mark CPU as IRQ not assigned by the kernel */
12507	cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12508
12509	/* If so, find a new_cpup that is on the SAME
12510	* phys_id as cpup. start_cpu will start where we
12511	* left off so all unassigned entries don't get assgined
12512	* the IRQ of the first entry.
12513	*/
12514	new_cpu = start_cpu;
12515	for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12516	new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12517	if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12518	(new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12519	(new_cpup->phys_id == cpup->phys_id))
12520	goto found_same;
12521	new_cpu = lpfc_next_present_cpu(n: new_cpu);
12522	}
12523	/* At this point, we leave the CPU as unassigned */
12524	continue;
12525	found_same:
12526	/* We found a matching phys_id, so copy the IRQ info */
12527	cpup->eq = new_cpup->eq;
12528
12529	/* Bump start_cpu to the next slot to minmize the
12530	* chance of having multiple unassigned CPU entries
12531	* selecting the same IRQ.
12532	*/
12533	start_cpu = lpfc_next_present_cpu(n: new_cpu);
12534
12535	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12536	"3337 Set Affinity: CPU %d "
12537	"eq %d from peer cpu %d same "
12538	"phys_id (%d)\n",
12539	cpu, cpup->eq, new_cpu,
12540	cpup->phys_id);
12541	}
12542	}
12543
12544	/* Set any unassigned cpu map entries to a IRQ on any phys_id */
12545	start_cpu = first_cpu;
12546
12547	for_each_present_cpu(cpu) {
12548	cpup = &phba->sli4_hba.cpu_map[cpu];
12549
12550	/* Is this entry unassigned */
12551	if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12552	/* Mark it as IRQ not assigned by the kernel */
12553	cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12554
12555	/* If so, find a new_cpup thats on ANY phys_id
12556	* as the cpup. start_cpu will start where we
12557	* left off so all unassigned entries don't get
12558	* assigned the IRQ of the first entry.
12559	*/
12560	new_cpu = start_cpu;
12561	for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12562	new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12563	if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12564	(new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12565	goto found_any;
12566	new_cpu = lpfc_next_present_cpu(n: new_cpu);
12567	}
12568	/* We should never leave an entry unassigned */
12569	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12570	"3339 Set Affinity: CPU %d "
12571	"eq %d UNASSIGNED\n",
12572	cpup->hdwq, cpup->eq);
12573	continue;
12574	found_any:
12575	/* We found an available entry, copy the IRQ info */
12576	cpup->eq = new_cpup->eq;
12577
12578	/* Bump start_cpu to the next slot to minmize the
12579	* chance of having multiple unassigned CPU entries
12580	* selecting the same IRQ.
12581	*/
12582	start_cpu = lpfc_next_present_cpu(n: new_cpu);
12583
12584	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12585	"3338 Set Affinity: CPU %d "
12586	"eq %d from peer cpu %d (%d/%d)\n",
12587	cpu, cpup->eq, new_cpu,
12588	new_cpup->phys_id, new_cpup->core_id);
12589	}
12590	}
12591
12592	/* Assign hdwq indices that are unique across all cpus in the map
12593	* that are also FIRST_CPUs.
12594	*/
12595	idx = 0;
12596	for_each_present_cpu(cpu) {
12597	cpup = &phba->sli4_hba.cpu_map[cpu];
12598
12599	/* Only FIRST IRQs get a hdwq index assignment. */
12600	if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12601	continue;
12602
12603	/* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12604	cpup->hdwq = idx;
12605	idx++;
12606	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12607	"3333 Set Affinity: CPU %d (phys %d core %d): "
12608	"hdwq %d eq %d flg x%x\n",
12609	cpu, cpup->phys_id, cpup->core_id,
12610	cpup->hdwq, cpup->eq, cpup->flag);
12611	}
12612	/* Associate a hdwq with each cpu_map entry
12613	* This will be 1 to 1 - hdwq to cpu, unless there are less
12614	* hardware queues then CPUs. For that case we will just round-robin
12615	* the available hardware queues as they get assigned to CPUs.
12616	* The next_idx is the idx from the FIRST_CPU loop above to account
12617	* for irq_chann < hdwq. The idx is used for round-robin assignments
12618	* and needs to start at 0.
12619	*/
12620	next_idx = idx;
12621	start_cpu = 0;
12622	idx = 0;
12623	for_each_present_cpu(cpu) {
12624	cpup = &phba->sli4_hba.cpu_map[cpu];
12625
12626	/* FIRST cpus are already mapped. */
12627	if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12628	continue;
12629
12630	/* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12631	* of the unassigned cpus to the next idx so that all
12632	* hdw queues are fully utilized.
12633	*/
12634	if (next_idx < phba->cfg_hdw_queue) {
12635	cpup->hdwq = next_idx;
12636	next_idx++;
12637	continue;
12638	}
12639
12640	/* Not a First CPU and all hdw_queues are used. Reuse a
12641	* Hardware Queue for another CPU, so be smart about it
12642	* and pick one that has its IRQ/EQ mapped to the same phys_id
12643	* (CPU package) and core_id.
12644	*/
12645	new_cpu = start_cpu;
12646	for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12647	new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12648	if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12649	new_cpup->phys_id == cpup->phys_id &&
12650	new_cpup->core_id == cpup->core_id) {
12651	goto found_hdwq;
12652	}
12653	new_cpu = lpfc_next_present_cpu(n: new_cpu);
12654	}
12655
12656	/* If we can't match both phys_id and core_id,
12657	* settle for just a phys_id match.
12658	*/
12659	new_cpu = start_cpu;
12660	for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12661	new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12662	if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12663	new_cpup->phys_id == cpup->phys_id)
12664	goto found_hdwq;
12665	new_cpu = lpfc_next_present_cpu(n: new_cpu);
12666	}
12667
12668	/* Otherwise just round robin on cfg_hdw_queue */
12669	cpup->hdwq = idx % phba->cfg_hdw_queue;
12670	idx++;
12671	goto logit;
12672	found_hdwq:
12673	/* We found an available entry, copy the IRQ info */
12674	start_cpu = lpfc_next_present_cpu(n: new_cpu);
12675	cpup->hdwq = new_cpup->hdwq;
12676	logit:
12677	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12678	"3335 Set Affinity: CPU %d (phys %d core %d): "
12679	"hdwq %d eq %d flg x%x\n",
12680	cpu, cpup->phys_id, cpup->core_id,
12681	cpup->hdwq, cpup->eq, cpup->flag);
12682	}
12683
12684	/*
12685	* Initialize the cpu_map slots for not-present cpus in case
12686	* a cpu is hot-added. Perform a simple hdwq round robin assignment.
12687	*/
12688	idx = 0;
12689	for_each_possible_cpu(cpu) {
12690	cpup = &phba->sli4_hba.cpu_map[cpu];
12691	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12692	c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12693	c_stat->hdwq_no = cpup->hdwq;
12694	#endif
12695	if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12696	continue;
12697
12698	cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12699	#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12700	c_stat->hdwq_no = cpup->hdwq;
12701	#endif
12702	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12703	"3340 Set Affinity: not present "
12704	"CPU %d hdwq %d\n",
12705	cpu, cpup->hdwq);
12706	}
12707
12708	/* The cpu_map array will be used later during initialization
12709	* when EQ / CQ / WQs are allocated and configured.
12710	*/
12711	return;
12712	}
12713
12714	/**
12715	* lpfc_cpuhp_get_eq
12716	*
12717	* @phba: pointer to lpfc hba data structure.
12718	* @cpu: cpu going offline
12719	* @eqlist: eq list to append to
12720	*/
12721	static int
12722	lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12723	struct list_head *eqlist)
12724	{
12725	const struct cpumask *maskp;
12726	struct lpfc_queue *eq;
12727	struct cpumask *tmp;
12728	u16 idx;
12729
12730	tmp = kzalloc(size: cpumask_size(), GFP_KERNEL);
12731	if (!tmp)
12732	return -ENOMEM;
12733
12734	for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12735	maskp = pci_irq_get_affinity(pdev: phba->pcidev, vec: idx);
12736	if (!maskp)
12737	continue;
12738	/*
12739	* if irq is not affinitized to the cpu going
12740	* then we don't need to poll the eq attached
12741	* to it.
12742	*/
12743	if (!cpumask_and(dstp: tmp, src1p: maskp, cpumask_of(cpu)))
12744	continue;
12745	/* get the cpus that are online and are affini-
12746	* tized to this irq vector. If the count is
12747	* more than 1 then cpuhp is not going to shut-
12748	* down this vector. Since this cpu has not
12749	* gone offline yet, we need >1.
12750	*/
12751	cpumask_and(dstp: tmp, src1p: maskp, cpu_online_mask);
12752	if (cpumask_weight(srcp: tmp) > 1)
12753	continue;
12754
12755	/* Now that we have an irq to shutdown, get the eq
12756	* mapped to this irq. Note: multiple hdwq's in
12757	* the software can share an eq, but eventually
12758	* only eq will be mapped to this vector
12759	*/
12760	eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12761	list_add(new: &eq->_poll_list, head: eqlist);
12762	}
12763	kfree(objp: tmp);
12764	return 0;
12765	}
12766
12767	static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12768	{
12769	if (phba->sli_rev != LPFC_SLI_REV4)
12770	return;
12771
12772	cpuhp_state_remove_instance_nocalls(state: lpfc_cpuhp_state,
12773	node: &phba->cpuhp);
12774	/*
12775	* unregistering the instance doesn't stop the polling
12776	* timer. Wait for the poll timer to retire.
12777	*/
12778	synchronize_rcu();
12779	del_timer_sync(timer: &phba->cpuhp_poll_timer);
12780	}
12781
12782	static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12783	{
12784	if (phba->pport &&
12785	test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
12786	return;
12787
12788	__lpfc_cpuhp_remove(phba);
12789	}
12790
12791	static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12792	{
12793	if (phba->sli_rev != LPFC_SLI_REV4)
12794	return;
12795
12796	rcu_read_lock();
12797
12798	if (!list_empty(head: &phba->poll_list))
12799	mod_timer(timer: &phba->cpuhp_poll_timer,
12800	expires: jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12801
12802	rcu_read_unlock();
12803
12804	cpuhp_state_add_instance_nocalls(state: lpfc_cpuhp_state,
12805	node: &phba->cpuhp);
12806	}
12807
12808	static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12809	{
12810	if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) {
12811	*retval = -EAGAIN;
12812	return true;
12813	}
12814
12815	if (phba->sli_rev != LPFC_SLI_REV4) {
12816	*retval = 0;
12817	return true;
12818	}
12819
12820	/* proceed with the hotplug */
12821	return false;
12822	}
12823
12824	/**
12825	* lpfc_irq_set_aff - set IRQ affinity
12826	* @eqhdl: EQ handle
12827	* @cpu: cpu to set affinity
12828	*
12829	**/
12830	static inline void
12831	lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12832	{
12833	cpumask_clear(dstp: &eqhdl->aff_mask);
12834	cpumask_set_cpu(cpu, dstp: &eqhdl->aff_mask);
12835	irq_set_status_flags(irq: eqhdl->irq, set: IRQ_NO_BALANCING);
12836	irq_set_affinity(irq: eqhdl->irq, cpumask: &eqhdl->aff_mask);
12837	}
12838
12839	/**
12840	* lpfc_irq_clear_aff - clear IRQ affinity
12841	* @eqhdl: EQ handle
12842	*
12843	**/
12844	static inline void
12845	lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12846	{
12847	cpumask_clear(dstp: &eqhdl->aff_mask);
12848	irq_clear_status_flags(irq: eqhdl->irq, clr: IRQ_NO_BALANCING);
12849	}
12850
12851	/**
12852	* lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12853	* @phba: pointer to HBA context object.
12854	* @cpu: cpu going offline/online
12855	* @offline: true, cpu is going offline. false, cpu is coming online.
12856	*
12857	* If cpu is going offline, we'll try our best effort to find the next
12858	* online cpu on the phba's original_mask and migrate all offlining IRQ
12859	* affinities.
12860	*
12861	* If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12862	*
12863	* Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12864	* PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12865	*
12866	**/
12867	static void
12868	lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12869	{
12870	struct lpfc_vector_map_info *cpup;
12871	struct cpumask *aff_mask;
12872	unsigned int cpu_select, cpu_next, idx;
12873	const struct cpumask *orig_mask;
12874
12875	if (phba->irq_chann_mode == NORMAL_MODE)
12876	return;
12877
12878	orig_mask = &phba->sli4_hba.irq_aff_mask;
12879
12880	if (!cpumask_test_cpu(cpu, cpumask: orig_mask))
12881	return;
12882
12883	cpup = &phba->sli4_hba.cpu_map[cpu];
12884
12885	if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12886	return;
12887
12888	if (offline) {
12889	/* Find next online CPU on original mask */
12890	cpu_next = cpumask_next_wrap(n: cpu, mask: orig_mask, start: cpu, wrap: true);
12891	cpu_select = lpfc_next_online_cpu(mask: orig_mask, start: cpu_next);
12892
12893	/* Found a valid CPU */
12894	if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12895	/* Go through each eqhdl and ensure offlining
12896	* cpu aff_mask is migrated
12897	*/
12898	for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12899	aff_mask = lpfc_get_aff_mask(idx);
12900
12901	/* Migrate affinity */
12902	if (cpumask_test_cpu(cpu, cpumask: aff_mask))
12903	lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12904	cpu: cpu_select);
12905	}
12906	} else {
12907	/* Rely on irqbalance if no online CPUs left on NUMA */
12908	for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12909	lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12910	}
12911	} else {
12912	/* Migrate affinity back to this CPU */
12913	lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12914	}
12915	}
12916
12917	static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12918	{
12919	struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12920	struct lpfc_queue *eq, *next;
12921	LIST_HEAD(eqlist);
12922	int retval;
12923
12924	if (!phba) {
12925	WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12926	return 0;
12927	}
12928
12929	if (__lpfc_cpuhp_checks(phba, retval: &retval))
12930	return retval;
12931
12932	lpfc_irq_rebalance(phba, cpu, offline: true);
12933
12934	retval = lpfc_cpuhp_get_eq(phba, cpu, eqlist: &eqlist);
12935	if (retval)
12936	return retval;
12937
12938	/* start polling on these eq's */
12939	list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12940	list_del_init(entry: &eq->_poll_list);
12941	lpfc_sli4_start_polling(q: eq);
12942	}
12943
12944	return 0;
12945	}
12946
12947	static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12948	{
12949	struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12950	struct lpfc_queue *eq, *next;
12951	unsigned int n;
12952	int retval;
12953
12954	if (!phba) {
12955	WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12956	return 0;
12957	}
12958
12959	if (__lpfc_cpuhp_checks(phba, retval: &retval))
12960	return retval;
12961
12962	lpfc_irq_rebalance(phba, cpu, offline: false);
12963
12964	list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12965	n = lpfc_find_cpu_handle(phba, id: eq->hdwq, LPFC_FIND_BY_HDWQ);
12966	if (n == cpu)
12967	lpfc_sli4_stop_polling(q: eq);
12968	}
12969
12970	return 0;
12971	}
12972
12973	/**
12974	* lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12975	* @phba: pointer to lpfc hba data structure.
12976	*
12977	* This routine is invoked to enable the MSI-X interrupt vectors to device
12978	* with SLI-4 interface spec. It also allocates MSI-X vectors and maps them
12979	* to cpus on the system.
12980	*
12981	* When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12982	* the number of cpus on the same numa node as this adapter. The vectors are
12983	* allocated without requesting OS affinity mapping. A vector will be
12984	* allocated and assigned to each online and offline cpu. If the cpu is
12985	* online, then affinity will be set to that cpu. If the cpu is offline, then
12986	* affinity will be set to the nearest peer cpu within the numa node that is
12987	* online. If there are no online cpus within the numa node, affinity is not
12988	* assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12989	* is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12990	* configured.
12991	*
12992	* If numa mode is not enabled and there is more than 1 vector allocated, then
12993	* the driver relies on the managed irq interface where the OS assigns vector to
12994	* cpu affinity. The driver will then use that affinity mapping to setup its
12995	* cpu mapping table.
12996	*
12997	* Return codes
12998	* 0 - successful
12999	* other values - error
13000	**/
13001	static int
13002	lpfc_sli4_enable_msix(struct lpfc_hba *phba)
13003	{
13004	int vectors, rc, index;
13005	char *name;
13006	const struct cpumask *aff_mask = NULL;
13007	unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
13008	struct lpfc_vector_map_info *cpup;
13009	struct lpfc_hba_eq_hdl *eqhdl;
13010	const struct cpumask *maskp;
13011	unsigned int flags = PCI_IRQ_MSIX;
13012
13013	/* Set up MSI-X multi-message vectors */
13014	vectors = phba->cfg_irq_chann;
13015
13016	if (phba->irq_chann_mode != NORMAL_MODE)
13017	aff_mask = &phba->sli4_hba.irq_aff_mask;
13018
13019	if (aff_mask) {
13020	cpu_cnt = cpumask_weight(srcp: aff_mask);
13021	vectors = min(phba->cfg_irq_chann, cpu_cnt);
13022
13023	/* cpu: iterates over aff_mask including offline or online
13024	* cpu_select: iterates over online aff_mask to set affinity
13025	*/
13026	cpu = cpumask_first(srcp: aff_mask);
13027	cpu_select = lpfc_next_online_cpu(mask: aff_mask, start: cpu);
13028	} else {
13029	flags |= PCI_IRQ_AFFINITY;
13030	}
13031
13032	rc = pci_alloc_irq_vectors(dev: phba->pcidev, min_vecs: 1, max_vecs: vectors, flags);
13033	if (rc < 0) {
13034	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13035	"0484 PCI enable MSI-X failed (%d)\n", rc);
13036	goto vec_fail_out;
13037	}
13038	vectors = rc;
13039
13040	/* Assign MSI-X vectors to interrupt handlers */
13041	for (index = 0; index < vectors; index++) {
13042	eqhdl = lpfc_get_eq_hdl(index);
13043	name = eqhdl->handler_name;
13044	memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
13045	snprintf(buf: name, LPFC_SLI4_HANDLER_NAME_SZ,
13046	LPFC_DRIVER_HANDLER_NAME"%d", index);
13047
13048	eqhdl->idx = index;
13049	rc = pci_irq_vector(dev: phba->pcidev, nr: index);
13050	if (rc < 0) {
13051	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13052	"0489 MSI-X fast-path (%d) "
13053	"pci_irq_vec failed (%d)\n", index, rc);
13054	goto cfg_fail_out;
13055	}
13056	eqhdl->irq = rc;
13057
13058	rc = request_threaded_irq(irq: eqhdl->irq,
13059	handler: &lpfc_sli4_hba_intr_handler,
13060	thread_fn: &lpfc_sli4_hba_intr_handler_th,
13061	flags: 0, name, dev: eqhdl);
13062	if (rc) {
13063	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13064	"0486 MSI-X fast-path (%d) "
13065	"request_irq failed (%d)\n", index, rc);
13066	goto cfg_fail_out;
13067	}
13068
13069	if (aff_mask) {
13070	/* If found a neighboring online cpu, set affinity */
13071	if (cpu_select < nr_cpu_ids)
13072	lpfc_irq_set_aff(eqhdl, cpu: cpu_select);
13073
13074	/* Assign EQ to cpu_map */
13075	lpfc_assign_eq_map_info(phba, eqidx: index,
13076	LPFC_CPU_FIRST_IRQ,
13077	cpu);
13078
13079	/* Iterate to next offline or online cpu in aff_mask */
13080	cpu = cpumask_next(n: cpu, srcp: aff_mask);
13081
13082	/* Find next online cpu in aff_mask to set affinity */
13083	cpu_select = lpfc_next_online_cpu(mask: aff_mask, start: cpu);
13084	} else if (vectors == 1) {
13085	cpu = cpumask_first(cpu_present_mask);
13086	lpfc_assign_eq_map_info(phba, eqidx: index, LPFC_CPU_FIRST_IRQ,
13087	cpu);
13088	} else {
13089	maskp = pci_irq_get_affinity(pdev: phba->pcidev, vec: index);
13090
13091	/* Loop through all CPUs associated with vector index */
13092	for_each_cpu_and(cpu, maskp, cpu_present_mask) {
13093	cpup = &phba->sli4_hba.cpu_map[cpu];
13094
13095	/* If this is the first CPU thats assigned to
13096	* this vector, set LPFC_CPU_FIRST_IRQ.
13097	*
13098	* With certain platforms its possible that irq
13099	* vectors are affinitized to all the cpu's.
13100	* This can result in each cpu_map.eq to be set
13101	* to the last vector, resulting in overwrite
13102	* of all the previous cpu_map.eq. Ensure that
13103	* each vector receives a place in cpu_map.
13104	* Later call to lpfc_cpu_affinity_check will
13105	* ensure we are nicely balanced out.
13106	*/
13107	if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
13108	continue;
13109	lpfc_assign_eq_map_info(phba, eqidx: index,
13110	LPFC_CPU_FIRST_IRQ,
13111	cpu);
13112	break;
13113	}
13114	}
13115	}
13116
13117	if (vectors != phba->cfg_irq_chann) {
13118	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13119	"3238 Reducing IO channels to match number of "
13120	"MSI-X vectors, requested %d got %d\n",
13121	phba->cfg_irq_chann, vectors);
13122	if (phba->cfg_irq_chann > vectors)
13123	phba->cfg_irq_chann = vectors;
13124	}
13125
13126	return rc;
13127
13128	cfg_fail_out:
13129	/* free the irq already requested */
13130	for (--index; index >= 0; index--) {
13131	eqhdl = lpfc_get_eq_hdl(index);
13132	lpfc_irq_clear_aff(eqhdl);
13133	free_irq(eqhdl->irq, eqhdl);
13134	}
13135
13136	/* Unconfigure MSI-X capability structure */
13137	pci_free_irq_vectors(dev: phba->pcidev);
13138
13139	vec_fail_out:
13140	return rc;
13141	}
13142
13143	/**
13144	* lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13145	* @phba: pointer to lpfc hba data structure.
13146	*
13147	* This routine is invoked to enable the MSI interrupt mode to device with
13148	* SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13149	* called to enable the MSI vector. The device driver is responsible for
13150	* calling the request_irq() to register MSI vector with a interrupt the
13151	* handler, which is done in this function.
13152	*
13153	* Return codes
13154	* 0 - successful
13155	* other values - error
13156	**/
13157	static int
13158	lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13159	{
13160	int rc, index;
13161	unsigned int cpu;
13162	struct lpfc_hba_eq_hdl *eqhdl;
13163
13164	rc = pci_alloc_irq_vectors(dev: phba->pcidev, min_vecs: 1, max_vecs: 1,
13165	PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13166	if (rc > 0)
13167	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13168	"0487 PCI enable MSI mode success.\n");
13169	else {
13170	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13171	"0488 PCI enable MSI mode failed (%d)\n", rc);
13172	return rc ? rc : -1;
13173	}
13174
13175	rc = request_irq(irq: phba->pcidev->irq, handler: lpfc_sli4_intr_handler,
13176	flags: 0, LPFC_DRIVER_NAME, dev: phba);
13177	if (rc) {
13178	pci_free_irq_vectors(dev: phba->pcidev);
13179	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13180	"0490 MSI request_irq failed (%d)\n", rc);
13181	return rc;
13182	}
13183
13184	eqhdl = lpfc_get_eq_hdl(0);
13185	rc = pci_irq_vector(dev: phba->pcidev, nr: 0);
13186	if (rc < 0) {
13187	pci_free_irq_vectors(dev: phba->pcidev);
13188	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13189	"0496 MSI pci_irq_vec failed (%d)\n", rc);
13190	return rc;
13191	}
13192	eqhdl->irq = rc;
13193
13194	cpu = cpumask_first(cpu_present_mask);
13195	lpfc_assign_eq_map_info(phba, eqidx: 0, LPFC_CPU_FIRST_IRQ, cpu);
13196
13197	for (index = 0; index < phba->cfg_irq_chann; index++) {
13198	eqhdl = lpfc_get_eq_hdl(index);
13199	eqhdl->idx = index;
13200	}
13201
13202	return 0;
13203	}
13204
13205	/**
13206	* lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13207	* @phba: pointer to lpfc hba data structure.
13208	* @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13209	*
13210	* This routine is invoked to enable device interrupt and associate driver's
13211	* interrupt handler(s) to interrupt vector(s) to device with SLI-4
13212	* interface spec. Depends on the interrupt mode configured to the driver,
13213	* the driver will try to fallback from the configured interrupt mode to an
13214	* interrupt mode which is supported by the platform, kernel, and device in
13215	* the order of:
13216	* MSI-X -> MSI -> IRQ.
13217	*
13218	* Return codes
13219	* Interrupt mode (2, 1, 0) - successful
13220	* LPFC_INTR_ERROR - error
13221	**/
13222	static uint32_t
13223	lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13224	{
13225	uint32_t intr_mode = LPFC_INTR_ERROR;
13226	int retval, idx;
13227
13228	if (cfg_mode == 2) {
13229	/* Preparation before conf_msi mbox cmd */
13230	retval = 0;
13231	if (!retval) {
13232	/* Now, try to enable MSI-X interrupt mode */
13233	retval = lpfc_sli4_enable_msix(phba);
13234	if (!retval) {
13235	/* Indicate initialization to MSI-X mode */
13236	phba->intr_type = MSIX;
13237	intr_mode = 2;
13238	}
13239	}
13240	}
13241
13242	/* Fallback to MSI if MSI-X initialization failed */
13243	if (cfg_mode >= 1 && phba->intr_type == NONE) {
13244	retval = lpfc_sli4_enable_msi(phba);
13245	if (!retval) {
13246	/* Indicate initialization to MSI mode */
13247	phba->intr_type = MSI;
13248	intr_mode = 1;
13249	}
13250	}
13251
13252	/* Fallback to INTx if both MSI-X/MSI initalization failed */
13253	if (phba->intr_type == NONE) {
13254	retval = request_irq(irq: phba->pcidev->irq, handler: lpfc_sli4_intr_handler,
13255	IRQF_SHARED, LPFC_DRIVER_NAME, dev: phba);
13256	if (!retval) {
13257	struct lpfc_hba_eq_hdl *eqhdl;
13258	unsigned int cpu;
13259
13260	/* Indicate initialization to INTx mode */
13261	phba->intr_type = INTx;
13262	intr_mode = 0;
13263
13264	eqhdl = lpfc_get_eq_hdl(0);
13265	retval = pci_irq_vector(dev: phba->pcidev, nr: 0);
13266	if (retval < 0) {
13267	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13268	"0502 INTR pci_irq_vec failed (%d)\n",
13269	retval);
13270	return LPFC_INTR_ERROR;
13271	}
13272	eqhdl->irq = retval;
13273
13274	cpu = cpumask_first(cpu_present_mask);
13275	lpfc_assign_eq_map_info(phba, eqidx: 0, LPFC_CPU_FIRST_IRQ,
13276	cpu);
13277	for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13278	eqhdl = lpfc_get_eq_hdl(idx);
13279	eqhdl->idx = idx;
13280	}
13281	}
13282	}
13283	return intr_mode;
13284	}
13285
13286	/**
13287	* lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13288	* @phba: pointer to lpfc hba data structure.
13289	*
13290	* This routine is invoked to disable device interrupt and disassociate
13291	* the driver's interrupt handler(s) from interrupt vector(s) to device
13292	* with SLI-4 interface spec. Depending on the interrupt mode, the driver
13293	* will release the interrupt vector(s) for the message signaled interrupt.
13294	**/
13295	static void
13296	lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13297	{
13298	/* Disable the currently initialized interrupt mode */
13299	if (phba->intr_type == MSIX) {
13300	int index;
13301	struct lpfc_hba_eq_hdl *eqhdl;
13302
13303	/* Free up MSI-X multi-message vectors */
13304	for (index = 0; index < phba->cfg_irq_chann; index++) {
13305	eqhdl = lpfc_get_eq_hdl(index);
13306	lpfc_irq_clear_aff(eqhdl);
13307	free_irq(eqhdl->irq, eqhdl);
13308	}
13309	} else {
13310	free_irq(phba->pcidev->irq, phba);
13311	}
13312
13313	pci_free_irq_vectors(dev: phba->pcidev);
13314
13315	/* Reset interrupt management states */
13316	phba->intr_type = NONE;
13317	phba->sli.slistat.sli_intr = 0;
13318	}
13319
13320	/**
13321	* lpfc_unset_hba - Unset SLI3 hba device initialization
13322	* @phba: pointer to lpfc hba data structure.
13323	*
13324	* This routine is invoked to unset the HBA device initialization steps to
13325	* a device with SLI-3 interface spec.
13326	**/
13327	static void
13328	lpfc_unset_hba(struct lpfc_hba *phba)
13329	{
13330	set_bit(nr: FC_UNLOADING, addr: &phba->pport->load_flag);
13331
13332	kfree(objp: phba->vpi_bmask);
13333	kfree(objp: phba->vpi_ids);
13334
13335	lpfc_stop_hba_timers(phba);
13336
13337	phba->pport->work_port_events = 0;
13338
13339	lpfc_sli_hba_down(phba);
13340
13341	lpfc_sli_brdrestart(phba);
13342
13343	lpfc_sli_disable_intr(phba);
13344
13345	return;
13346	}
13347
13348	/**
13349	* lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13350	* @phba: Pointer to HBA context object.
13351	*
13352	* This function is called in the SLI4 code path to wait for completion
13353	* of device's XRIs exchange busy. It will check the XRI exchange busy
13354	* on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13355	* that, it will check the XRI exchange busy on outstanding FCP and ELS
13356	* I/Os every 30 seconds, log error message, and wait forever. Only when
13357	* all XRI exchange busy complete, the driver unload shall proceed with
13358	* invoking the function reset ioctl mailbox command to the CNA and the
13359	* the rest of the driver unload resource release.
13360	**/
13361	static void
13362	lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13363	{
13364	struct lpfc_sli4_hdw_queue *qp;
13365	int idx, ccnt;
13366	int wait_time = 0;
13367	int io_xri_cmpl = 1;
13368	int nvmet_xri_cmpl = 1;
13369	int els_xri_cmpl = list_empty(head: &phba->sli4_hba.lpfc_abts_els_sgl_list);
13370
13371	/* Driver just aborted IOs during the hba_unset process. Pause
13372	* here to give the HBA time to complete the IO and get entries
13373	* into the abts lists.
13374	*/
13375	msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13376
13377	/* Wait for NVME pending IO to flush back to transport. */
13378	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13379	lpfc_nvme_wait_for_io_drain(phba);
13380
13381	ccnt = 0;
13382	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13383	qp = &phba->sli4_hba.hdwq[idx];
13384	io_xri_cmpl = list_empty(head: &qp->lpfc_abts_io_buf_list);
13385	if (!io_xri_cmpl) /* if list is NOT empty */
13386	ccnt++;
13387	}
13388	if (ccnt)
13389	io_xri_cmpl = 0;
13390
13391	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13392	nvmet_xri_cmpl =
13393	list_empty(head: &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13394	}
13395
13396	while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13397	if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13398	if (!nvmet_xri_cmpl)
13399	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13400	"6424 NVMET XRI exchange busy "
13401	"wait time: %d seconds.\n",
13402	wait_time/1000);
13403	if (!io_xri_cmpl)
13404	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13405	"6100 IO XRI exchange busy "
13406	"wait time: %d seconds.\n",
13407	wait_time/1000);
13408	if (!els_xri_cmpl)
13409	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13410	"2878 ELS XRI exchange busy "
13411	"wait time: %d seconds.\n",
13412	wait_time/1000);
13413	msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13414	wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13415	} else {
13416	msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13417	wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13418	}
13419
13420	ccnt = 0;
13421	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13422	qp = &phba->sli4_hba.hdwq[idx];
13423	io_xri_cmpl = list_empty(
13424	head: &qp->lpfc_abts_io_buf_list);
13425	if (!io_xri_cmpl) /* if list is NOT empty */
13426	ccnt++;
13427	}
13428	if (ccnt)
13429	io_xri_cmpl = 0;
13430
13431	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13432	nvmet_xri_cmpl = list_empty(
13433	head: &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13434	}
13435	els_xri_cmpl =
13436	list_empty(head: &phba->sli4_hba.lpfc_abts_els_sgl_list);
13437
13438	}
13439	}
13440
13441	/**
13442	* lpfc_sli4_hba_unset - Unset the fcoe hba
13443	* @phba: Pointer to HBA context object.
13444	*
13445	* This function is called in the SLI4 code path to reset the HBA's FCoE
13446	* function. The caller is not required to hold any lock. This routine
13447	* issues PCI function reset mailbox command to reset the FCoE function.
13448	* At the end of the function, it calls lpfc_hba_down_post function to
13449	* free any pending commands.
13450	**/
13451	static void
13452	lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13453	{
13454	int wait_cnt = 0;
13455	LPFC_MBOXQ_t *mboxq;
13456	struct pci_dev *pdev = phba->pcidev;
13457
13458	lpfc_stop_hba_timers(phba);
13459	hrtimer_cancel(timer: &phba->cmf_stats_timer);
13460	hrtimer_cancel(timer: &phba->cmf_timer);
13461
13462	if (phba->pport)
13463	phba->sli4_hba.intr_enable = 0;
13464
13465	/*
13466	* Gracefully wait out the potential current outstanding asynchronous
13467	* mailbox command.
13468	*/
13469
13470	/* First, block any pending async mailbox command from posted */
13471	spin_lock_irq(lock: &phba->hbalock);
13472	phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13473	spin_unlock_irq(lock: &phba->hbalock);
13474	/* Now, trying to wait it out if we can */
13475	while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13476	msleep(msecs: 10);
13477	if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13478	break;
13479	}
13480	/* Forcefully release the outstanding mailbox command if timed out */
13481	if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13482	spin_lock_irq(lock: &phba->hbalock);
13483	mboxq = phba->sli.mbox_active;
13484	mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13485	__lpfc_mbox_cmpl_put(phba, mboxq);
13486	phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13487	phba->sli.mbox_active = NULL;
13488	spin_unlock_irq(lock: &phba->hbalock);
13489	}
13490
13491	/* Abort all iocbs associated with the hba */
13492	lpfc_sli_hba_iocb_abort(phba);
13493
13494	if (!pci_channel_offline(pdev: phba->pcidev))
13495	/* Wait for completion of device XRI exchange busy */
13496	lpfc_sli4_xri_exchange_busy_wait(phba);
13497
13498	/* per-phba callback de-registration for hotplug event */
13499	if (phba->pport)
13500	lpfc_cpuhp_remove(phba);
13501
13502	/* Disable PCI subsystem interrupt */
13503	lpfc_sli4_disable_intr(phba);
13504
13505	/* Disable SR-IOV if enabled */
13506	if (phba->cfg_sriov_nr_virtfn)
13507	pci_disable_sriov(dev: pdev);
13508
13509	/* Stop kthread signal shall trigger work_done one more time */
13510	kthread_stop(k: phba->worker_thread);
13511
13512	/* Disable FW logging to host memory */
13513	lpfc_ras_stop_fwlog(phba);
13514
13515	/* Reset SLI4 HBA FCoE function */
13516	lpfc_pci_function_reset(phba);
13517
13518	/* release all queue allocated resources. */
13519	lpfc_sli4_queue_destroy(phba);
13520
13521	/* Free RAS DMA memory */
13522	if (phba->ras_fwlog.ras_enabled)
13523	lpfc_sli4_ras_dma_free(phba);
13524
13525	/* Stop the SLI4 device port */
13526	if (phba->pport)
13527	phba->pport->work_port_events = 0;
13528	}
13529
13530	static uint32_t
13531	lpfc_cgn_crc32(uint32_t crc, u8 byte)
13532	{
13533	uint32_t msb = 0;
13534	uint32_t bit;
13535
13536	for (bit = 0; bit < 8; bit++) {
13537	msb = (crc >> 31) & 1;
13538	crc <<= 1;
13539
13540	if (msb ^ (byte & 1)) {
13541	crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13542	crc |= 1;
13543	}
13544	byte >>= 1;
13545	}
13546	return crc;
13547	}
13548
13549	static uint32_t
13550	lpfc_cgn_reverse_bits(uint32_t wd)
13551	{
13552	uint32_t result = 0;
13553	uint32_t i;
13554
13555	for (i = 0; i < 32; i++) {
13556	result <<= 1;
13557	result |= (1 & (wd >> i));
13558	}
13559	return result;
13560	}
13561
13562	/*
13563	* The routine corresponds with the algorithm the HBA firmware
13564	* uses to validate the data integrity.
13565	*/
13566	uint32_t
13567	lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13568	{
13569	uint32_t i;
13570	uint32_t result;
13571	uint8_t *data = (uint8_t *)ptr;
13572
13573	for (i = 0; i < byteLen; ++i)
13574	crc = lpfc_cgn_crc32(crc, byte: data[i]);
13575
13576	result = ~lpfc_cgn_reverse_bits(wd: crc);
13577	return result;
13578	}
13579
13580	void
13581	lpfc_init_congestion_buf(struct lpfc_hba *phba)
13582	{
13583	struct lpfc_cgn_info *cp;
13584	uint16_t size;
13585	uint32_t crc;
13586
13587	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13588	"6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13589
13590	if (!phba->cgn_i)
13591	return;
13592	cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13593
13594	atomic_set(v: &phba->cgn_fabric_warn_cnt, i: 0);
13595	atomic_set(v: &phba->cgn_fabric_alarm_cnt, i: 0);
13596	atomic_set(v: &phba->cgn_sync_alarm_cnt, i: 0);
13597	atomic_set(v: &phba->cgn_sync_warn_cnt, i: 0);
13598
13599	atomic_set(v: &phba->cgn_driver_evt_cnt, i: 0);
13600	atomic_set(v: &phba->cgn_latency_evt_cnt, i: 0);
13601	atomic64_set(v: &phba->cgn_latency_evt, i: 0);
13602	phba->cgn_evt_minute = 0;
13603
13604	memset(cp, 0xff, offsetof(struct lpfc_cgn_info, cgn_stat));
13605	cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13606	cp->cgn_info_version = LPFC_CGN_INFO_V4;
13607
13608	/* cgn parameters */
13609	cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13610	cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13611	cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13612	cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13613
13614	lpfc_cgn_update_tstamp(phba, ts: &cp->base_time);
13615
13616	/* Fill in default LUN qdepth */
13617	if (phba->pport) {
13618	size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13619	cp->cgn_lunq = cpu_to_le16(size);
13620	}
13621
13622	/* last used Index initialized to 0xff already */
13623
13624	cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13625	cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13626	crc = lpfc_cgn_calc_crc32(ptr: cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13627	cp->cgn_info_crc = cpu_to_le32(crc);
13628
13629	phba->cgn_evt_timestamp = jiffies +
13630	msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13631	}
13632
13633	void
13634	lpfc_init_congestion_stat(struct lpfc_hba *phba)
13635	{
13636	struct lpfc_cgn_info *cp;
13637	uint32_t crc;
13638
13639	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13640	"6236 INIT Congestion Stat %p\n", phba->cgn_i);
13641
13642	if (!phba->cgn_i)
13643	return;
13644
13645	cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13646	memset(&cp->cgn_stat, 0, sizeof(cp->cgn_stat));
13647
13648	lpfc_cgn_update_tstamp(phba, ts: &cp->stat_start);
13649	crc = lpfc_cgn_calc_crc32(ptr: cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13650	cp->cgn_info_crc = cpu_to_le32(crc);
13651	}
13652
13653	/**
13654	* __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13655	* @phba: Pointer to hba context object.
13656	* @reg: flag to determine register or unregister.
13657	*/
13658	static int
13659	__lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13660	{
13661	struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13662	union lpfc_sli4_cfg_shdr *shdr;
13663	uint32_t shdr_status, shdr_add_status;
13664	LPFC_MBOXQ_t *mboxq;
13665	int length, rc;
13666
13667	if (!phba->cgn_i)
13668	return -ENXIO;
13669
13670	mboxq = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
13671	if (!mboxq) {
13672	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13673	"2641 REG_CONGESTION_BUF mbox allocation fail: "
13674	"HBA state x%x reg %d\n",
13675	phba->pport->port_state, reg);
13676	return -ENOMEM;
13677	}
13678
13679	length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13680	sizeof(struct lpfc_sli4_cfg_mhdr));
13681	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13682	LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13683	LPFC_SLI4_MBX_EMBED);
13684	reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13685	bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13686	if (reg > 0)
13687	bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13688	else
13689	bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13690	reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13691	reg_congestion_buf->addr_lo =
13692	putPaddrLow(phba->cgn_i->phys);
13693	reg_congestion_buf->addr_hi =
13694	putPaddrHigh(phba->cgn_i->phys);
13695
13696	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13697	shdr = (union lpfc_sli4_cfg_shdr *)
13698	&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13699	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13700	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13701	&shdr->response);
13702	mempool_free(element: mboxq, pool: phba->mbox_mem_pool);
13703	if (shdr_status || shdr_add_status || rc) {
13704	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13705	"2642 REG_CONGESTION_BUF mailbox "
13706	"failed with status x%x add_status x%x,"
13707	" mbx status x%x reg %d\n",
13708	shdr_status, shdr_add_status, rc, reg);
13709	return -ENXIO;
13710	}
13711	return 0;
13712	}
13713
13714	int
13715	lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13716	{
13717	lpfc_cmf_stop(phba);
13718	return __lpfc_reg_congestion_buf(phba, reg: 0);
13719	}
13720
13721	int
13722	lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13723	{
13724	return __lpfc_reg_congestion_buf(phba, reg: 1);
13725	}
13726
13727	/**
13728	* lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13729	* @phba: Pointer to HBA context object.
13730	* @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13731	*
13732	* This function is called in the SLI4 code path to read the port's
13733	* sli4 capabilities.
13734	*
13735	* This function may be be called from any context that can block-wait
13736	* for the completion. The expectation is that this routine is called
13737	* typically from probe_one or from the online routine.
13738	**/
13739	int
13740	lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13741	{
13742	int rc;
13743	struct lpfc_mqe *mqe = &mboxq->u.mqe;
13744	struct lpfc_pc_sli4_params *sli4_params;
13745	uint32_t mbox_tmo;
13746	int length;
13747	bool exp_wqcq_pages = true;
13748	struct lpfc_sli4_parameters *mbx_sli4_parameters;
13749
13750	/*
13751	* By default, the driver assumes the SLI4 port requires RPI
13752	* header postings. The SLI4_PARAM response will correct this
13753	* assumption.
13754	*/
13755	phba->sli4_hba.rpi_hdrs_in_use = 1;
13756
13757	/* Read the port's SLI4 Config Parameters */
13758	length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13759	sizeof(struct lpfc_sli4_cfg_mhdr));
13760	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13761	LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13762	length, LPFC_SLI4_MBX_EMBED);
13763	if (!phba->sli4_hba.intr_enable)
13764	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13765	else {
13766	mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13767	rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13768	}
13769	if (unlikely(rc))
13770	return rc;
13771	sli4_params = &phba->sli4_hba.pc_sli4_params;
13772	mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13773	sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13774	sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13775	sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13776	sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13777	mbx_sli4_parameters);
13778	sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13779	mbx_sli4_parameters);
13780	if (bf_get(cfg_phwq, mbx_sli4_parameters))
13781	phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13782	else
13783	phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13784	sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13785	sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13786	mbx_sli4_parameters);
13787	sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13788	sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13789	sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13790	sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13791	sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13792	sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13793	sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13794	sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13795	sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13796	sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13797	sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13798	mbx_sli4_parameters);
13799	sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13800	sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13801	mbx_sli4_parameters);
13802	phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13803	phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13804	sli4_params->mi_cap = bf_get(cfg_mi_ver, mbx_sli4_parameters);
13805
13806	/* Check for Extended Pre-Registered SGL support */
13807	phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13808
13809	/* Check for firmware nvme support */
13810	rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13811	bf_get(cfg_xib, mbx_sli4_parameters));
13812
13813	if (rc) {
13814	/* Save this to indicate the Firmware supports NVME */
13815	sli4_params->nvme = 1;
13816
13817	/* Firmware NVME support, check driver FC4 NVME support */
13818	if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13819	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13820	"6133 Disabling NVME support: "
13821	"FC4 type not supported: x%x\n",
13822	phba->cfg_enable_fc4_type);
13823	goto fcponly;
13824	}
13825	} else {
13826	/* No firmware NVME support, check driver FC4 NVME support */
13827	sli4_params->nvme = 0;
13828	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13829	lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13830	"6101 Disabling NVME support: Not "
13831	"supported by firmware (%d %d) x%x\n",
13832	bf_get(cfg_nvme, mbx_sli4_parameters),
13833	bf_get(cfg_xib, mbx_sli4_parameters),
13834	phba->cfg_enable_fc4_type);
13835	fcponly:
13836	phba->nvmet_support = 0;
13837	phba->cfg_nvmet_mrq = 0;
13838	phba->cfg_nvme_seg_cnt = 0;
13839
13840	/* If no FC4 type support, move to just SCSI support */
13841	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13842	return -ENODEV;
13843	phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13844	}
13845	}
13846
13847	/* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13848	* accommodate 512K and 1M IOs in a single nvme buf.
13849	*/
13850	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13851	phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13852
13853	/* Enable embedded Payload BDE if support is indicated */
13854	if (bf_get(cfg_pbde, mbx_sli4_parameters))
13855	phba->cfg_enable_pbde = 1;
13856	else
13857	phba->cfg_enable_pbde = 0;
13858
13859	/*
13860	* To support Suppress Response feature we must satisfy 3 conditions.
13861	* lpfc_suppress_rsp module parameter must be set (default).
13862	* In SLI4-Parameters Descriptor:
13863	* Extended Inline Buffers (XIB) must be supported.
13864	* Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13865	* (double negative).
13866	*/
13867	if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13868	!(bf_get(cfg_nosr, mbx_sli4_parameters)))
13869	phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13870	else
13871	phba->cfg_suppress_rsp = 0;
13872
13873	if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13874	phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13875
13876	/* Make sure that sge_supp_len can be handled by the driver */
13877	if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13878	sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13879
13880	rc = dma_set_max_seg_size(dev: &phba->pcidev->dev, size: sli4_params->sge_supp_len);
13881	if (unlikely(rc)) {
13882	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13883	"6400 Can't set dma maximum segment size\n");
13884	return rc;
13885	}
13886
13887	/*
13888	* Check whether the adapter supports an embedded copy of the
13889	* FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13890	* to use this option, 128-byte WQEs must be used.
13891	*/
13892	if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13893	phba->fcp_embed_io = 1;
13894	else
13895	phba->fcp_embed_io = 0;
13896
13897	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13898	"6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13899	bf_get(cfg_xib, mbx_sli4_parameters),
13900	phba->cfg_enable_pbde,
13901	phba->fcp_embed_io, sli4_params->nvme,
13902	phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13903
13904	if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13905	LPFC_SLI_INTF_IF_TYPE_2) &&
13906	(bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13907	LPFC_SLI_INTF_FAMILY_LNCR_A0))
13908	exp_wqcq_pages = false;
13909
13910	if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13911	(bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13912	exp_wqcq_pages &&
13913	(sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13914	phba->enab_exp_wqcq_pages = 1;
13915	else
13916	phba->enab_exp_wqcq_pages = 0;
13917	/*
13918	* Check if the SLI port supports MDS Diagnostics
13919	*/
13920	if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13921	phba->mds_diags_support = 1;
13922	else
13923	phba->mds_diags_support = 0;
13924
13925	/*
13926	* Check if the SLI port supports NSLER
13927	*/
13928	if (bf_get(cfg_nsler, mbx_sli4_parameters))
13929	phba->nsler = 1;
13930	else
13931	phba->nsler = 0;
13932
13933	return 0;
13934	}
13935
13936	/**
13937	* lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13938	* @pdev: pointer to PCI device
13939	* @pid: pointer to PCI device identifier
13940	*
13941	* This routine is to be called to attach a device with SLI-3 interface spec
13942	* to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13943	* presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13944	* information of the device and driver to see if the driver state that it can
13945	* support this kind of device. If the match is successful, the driver core
13946	* invokes this routine. If this routine determines it can claim the HBA, it
13947	* does all the initialization that it needs to do to handle the HBA properly.
13948	*
13949	* Return code
13950	* 0 - driver can claim the device
13951	* negative value - driver can not claim the device
13952	**/
13953	static int
13954	lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13955	{
13956	struct lpfc_hba *phba;
13957	struct lpfc_vport *vport = NULL;
13958	struct Scsi_Host *shost = NULL;
13959	int error;
13960	uint32_t cfg_mode, intr_mode;
13961
13962	/* Allocate memory for HBA structure */
13963	phba = lpfc_hba_alloc(pdev);
13964	if (!phba)
13965	return -ENOMEM;
13966
13967	/* Perform generic PCI device enabling operation */
13968	error = lpfc_enable_pci_dev(phba);
13969	if (error)
13970	goto out_free_phba;
13971
13972	/* Set up SLI API function jump table for PCI-device group-0 HBAs */
13973	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13974	if (error)
13975	goto out_disable_pci_dev;
13976
13977	/* Set up SLI-3 specific device PCI memory space */
13978	error = lpfc_sli_pci_mem_setup(phba);
13979	if (error) {
13980	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13981	"1402 Failed to set up pci memory space.\n");
13982	goto out_disable_pci_dev;
13983	}
13984
13985	/* Set up SLI-3 specific device driver resources */
13986	error = lpfc_sli_driver_resource_setup(phba);
13987	if (error) {
13988	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13989	"1404 Failed to set up driver resource.\n");
13990	goto out_unset_pci_mem_s3;
13991	}
13992
13993	/* Initialize and populate the iocb list per host */
13994
13995	error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13996	if (error) {
13997	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13998	"1405 Failed to initialize iocb list.\n");
13999	goto out_unset_driver_resource_s3;
14000	}
14001
14002	/* Set up common device driver resources */
14003	error = lpfc_setup_driver_resource_phase2(phba);
14004	if (error) {
14005	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14006	"1406 Failed to set up driver resource.\n");
14007	goto out_free_iocb_list;
14008	}
14009
14010	/* Get the default values for Model Name and Description */
14011	lpfc_get_hba_model_desc(phba, mdp: phba->ModelName, descp: phba->ModelDesc);
14012
14013	/* Create SCSI host to the physical port */
14014	error = lpfc_create_shost(phba);
14015	if (error) {
14016	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14017	"1407 Failed to create scsi host.\n");
14018	goto out_unset_driver_resource;
14019	}
14020
14021	/* Configure sysfs attributes */
14022	vport = phba->pport;
14023	error = lpfc_alloc_sysfs_attr(vport);
14024	if (error) {
14025	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14026	"1476 Failed to allocate sysfs attr\n");
14027	goto out_destroy_shost;
14028	}
14029
14030	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14031	/* Now, trying to enable interrupt and bring up the device */
14032	cfg_mode = phba->cfg_use_msi;
14033	while (true) {
14034	/* Put device to a known state before enabling interrupt */
14035	lpfc_stop_port(phba);
14036	/* Configure and enable interrupt */
14037	intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
14038	if (intr_mode == LPFC_INTR_ERROR) {
14039	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14040	"0431 Failed to enable interrupt.\n");
14041	error = -ENODEV;
14042	goto out_free_sysfs_attr;
14043	}
14044	/* SLI-3 HBA setup */
14045	if (lpfc_sli_hba_setup(phba)) {
14046	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14047	"1477 Failed to set up hba\n");
14048	error = -ENODEV;
14049	goto out_remove_device;
14050	}
14051
14052	/* Wait 50ms for the interrupts of previous mailbox commands */
14053	msleep(msecs: 50);
14054	/* Check active interrupts on message signaled interrupts */
14055	if (intr_mode == 0 ||
14056	phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
14057	/* Log the current active interrupt mode */
14058	phba->intr_mode = intr_mode;
14059	lpfc_log_intr_mode(phba, intr_mode);
14060	break;
14061	} else {
14062	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14063	"0447 Configure interrupt mode (%d) "
14064	"failed active interrupt test.\n",
14065	intr_mode);
14066	/* Disable the current interrupt mode */
14067	lpfc_sli_disable_intr(phba);
14068	/* Try next level of interrupt mode */
14069	cfg_mode = --intr_mode;
14070	}
14071	}
14072
14073	/* Perform post initialization setup */
14074	lpfc_post_init_setup(phba);
14075
14076	/* Check if there are static vports to be created. */
14077	lpfc_create_static_vport(phba);
14078
14079	return 0;
14080
14081	out_remove_device:
14082	lpfc_unset_hba(phba);
14083	out_free_sysfs_attr:
14084	lpfc_free_sysfs_attr(vport);
14085	out_destroy_shost:
14086	lpfc_destroy_shost(phba);
14087	out_unset_driver_resource:
14088	lpfc_unset_driver_resource_phase2(phba);
14089	out_free_iocb_list:
14090	lpfc_free_iocb_list(phba);
14091	out_unset_driver_resource_s3:
14092	lpfc_sli_driver_resource_unset(phba);
14093	out_unset_pci_mem_s3:
14094	lpfc_sli_pci_mem_unset(phba);
14095	out_disable_pci_dev:
14096	lpfc_disable_pci_dev(phba);
14097	if (shost)
14098	scsi_host_put(t: shost);
14099	out_free_phba:
14100	lpfc_hba_free(phba);
14101	return error;
14102	}
14103
14104	/**
14105	* lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
14106	* @pdev: pointer to PCI device
14107	*
14108	* This routine is to be called to disattach a device with SLI-3 interface
14109	* spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14110	* removed from PCI bus, it performs all the necessary cleanup for the HBA
14111	* device to be removed from the PCI subsystem properly.
14112	**/
14113	static void
14114	lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14115	{
14116	struct Scsi_Host *shost = pci_get_drvdata(pdev);
14117	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14118	struct lpfc_vport **vports;
14119	struct lpfc_hba *phba = vport->phba;
14120	int i;
14121
14122	set_bit(nr: FC_UNLOADING, addr: &vport->load_flag);
14123
14124	lpfc_free_sysfs_attr(vport);
14125
14126	/* Release all the vports against this physical port */
14127	vports = lpfc_create_vport_work_array(phba);
14128	if (vports != NULL)
14129	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14130	if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14131	continue;
14132	fc_vport_terminate(vport: vports[i]->fc_vport);
14133	}
14134	lpfc_destroy_vport_work_array(phba, vports);
14135
14136	/* Remove FC host with the physical port */
14137	fc_remove_host(shost);
14138	scsi_remove_host(shost);
14139
14140	/* Clean up all nodes, mailboxes and IOs. */
14141	lpfc_cleanup(vport);
14142
14143	/*
14144	* Bring down the SLI Layer. This step disable all interrupts,
14145	* clears the rings, discards all mailbox commands, and resets
14146	* the HBA.
14147	*/
14148
14149	/* HBA interrupt will be disabled after this call */
14150	lpfc_sli_hba_down(phba);
14151	/* Stop kthread signal shall trigger work_done one more time */
14152	kthread_stop(k: phba->worker_thread);
14153	/* Final cleanup of txcmplq and reset the HBA */
14154	lpfc_sli_brdrestart(phba);
14155
14156	kfree(objp: phba->vpi_bmask);
14157	kfree(objp: phba->vpi_ids);
14158
14159	lpfc_stop_hba_timers(phba);
14160	spin_lock_irq(lock: &phba->port_list_lock);
14161	list_del_init(entry: &vport->listentry);
14162	spin_unlock_irq(lock: &phba->port_list_lock);
14163
14164	lpfc_debugfs_terminate(vport);
14165
14166	/* Disable SR-IOV if enabled */
14167	if (phba->cfg_sriov_nr_virtfn)
14168	pci_disable_sriov(dev: pdev);
14169
14170	/* Disable interrupt */
14171	lpfc_sli_disable_intr(phba);
14172
14173	scsi_host_put(t: shost);
14174
14175	/*
14176	* Call scsi_free before mem_free since scsi bufs are released to their
14177	* corresponding pools here.
14178	*/
14179	lpfc_scsi_free(phba);
14180	lpfc_free_iocb_list(phba);
14181
14182	lpfc_mem_free_all(phba);
14183
14184	dma_free_coherent(dev: &pdev->dev, size: lpfc_sli_hbq_size(),
14185	cpu_addr: phba->hbqslimp.virt, dma_handle: phba->hbqslimp.phys);
14186
14187	/* Free resources associated with SLI2 interface */
14188	dma_free_coherent(dev: &pdev->dev, SLI2_SLIM_SIZE,
14189	cpu_addr: phba->slim2p.virt, dma_handle: phba->slim2p.phys);
14190
14191	/* unmap adapter SLIM and Control Registers */
14192	iounmap(addr: phba->ctrl_regs_memmap_p);
14193	iounmap(addr: phba->slim_memmap_p);
14194
14195	lpfc_hba_free(phba);
14196
14197	pci_release_mem_regions(pdev);
14198	pci_disable_device(dev: pdev);
14199	}
14200
14201	/**
14202	* lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14203	* @dev_d: pointer to device
14204	*
14205	* This routine is to be called from the kernel's PCI subsystem to support
14206	* system Power Management (PM) to device with SLI-3 interface spec. When
14207	* PM invokes this method, it quiesces the device by stopping the driver's
14208	* worker thread for the device, turning off device's interrupt and DMA,
14209	* and bring the device offline. Note that as the driver implements the
14210	* minimum PM requirements to a power-aware driver's PM support for the
14211	* suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14212	* to the suspend() method call will be treated as SUSPEND and the driver will
14213	* fully reinitialize its device during resume() method call, the driver will
14214	* set device to PCI_D3hot state in PCI config space instead of setting it
14215	* according to the @msg provided by the PM.
14216	*
14217	* Return code
14218	* 0 - driver suspended the device
14219	* Error otherwise
14220	**/
14221	static int __maybe_unused
14222	lpfc_pci_suspend_one_s3(struct device *dev_d)
14223	{
14224	struct Scsi_Host *shost = dev_get_drvdata(dev: dev_d);
14225	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14226
14227	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14228	"0473 PCI device Power Management suspend.\n");
14229
14230	/* Bring down the device */
14231	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14232	lpfc_offline(phba);
14233	kthread_stop(k: phba->worker_thread);
14234
14235	/* Disable interrupt from device */
14236	lpfc_sli_disable_intr(phba);
14237
14238	return 0;
14239	}
14240
14241	/**
14242	* lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14243	* @dev_d: pointer to device
14244	*
14245	* This routine is to be called from the kernel's PCI subsystem to support
14246	* system Power Management (PM) to device with SLI-3 interface spec. When PM
14247	* invokes this method, it restores the device's PCI config space state and
14248	* fully reinitializes the device and brings it online. Note that as the
14249	* driver implements the minimum PM requirements to a power-aware driver's
14250	* PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14251	* FREEZE) to the suspend() method call will be treated as SUSPEND and the
14252	* driver will fully reinitialize its device during resume() method call,
14253	* the device will be set to PCI_D0 directly in PCI config space before
14254	* restoring the state.
14255	*
14256	* Return code
14257	* 0 - driver suspended the device
14258	* Error otherwise
14259	**/
14260	static int __maybe_unused
14261	lpfc_pci_resume_one_s3(struct device *dev_d)
14262	{
14263	struct Scsi_Host *shost = dev_get_drvdata(dev: dev_d);
14264	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14265	uint32_t intr_mode;
14266	int error;
14267
14268	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14269	"0452 PCI device Power Management resume.\n");
14270
14271	/* Startup the kernel thread for this host adapter. */
14272	phba->worker_thread = kthread_run(lpfc_do_work, phba,
14273	"lpfc_worker_%d", phba->brd_no);
14274	if (IS_ERR(ptr: phba->worker_thread)) {
14275	error = PTR_ERR(ptr: phba->worker_thread);
14276	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14277	"0434 PM resume failed to start worker "
14278	"thread: error=x%x.\n", error);
14279	return error;
14280	}
14281
14282	/* Init cpu_map array */
14283	lpfc_cpu_map_array_init(phba);
14284	/* Init hba_eq_hdl array */
14285	lpfc_hba_eq_hdl_array_init(phba);
14286	/* Configure and enable interrupt */
14287	intr_mode = lpfc_sli_enable_intr(phba, cfg_mode: phba->intr_mode);
14288	if (intr_mode == LPFC_INTR_ERROR) {
14289	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14290	"0430 PM resume Failed to enable interrupt\n");
14291	return -EIO;
14292	} else
14293	phba->intr_mode = intr_mode;
14294
14295	/* Restart HBA and bring it online */
14296	lpfc_sli_brdrestart(phba);
14297	lpfc_online(phba);
14298
14299	/* Log the current active interrupt mode */
14300	lpfc_log_intr_mode(phba, intr_mode: phba->intr_mode);
14301
14302	return 0;
14303	}
14304
14305	/**
14306	* lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14307	* @phba: pointer to lpfc hba data structure.
14308	*
14309	* This routine is called to prepare the SLI3 device for PCI slot recover. It
14310	* aborts all the outstanding SCSI I/Os to the pci device.
14311	**/
14312	static void
14313	lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14314	{
14315	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14316	"2723 PCI channel I/O abort preparing for recovery\n");
14317
14318	/*
14319	* There may be errored I/Os through HBA, abort all I/Os on txcmplq
14320	* and let the SCSI mid-layer to retry them to recover.
14321	*/
14322	lpfc_sli_abort_fcp_rings(phba);
14323	}
14324
14325	/**
14326	* lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14327	* @phba: pointer to lpfc hba data structure.
14328	*
14329	* This routine is called to prepare the SLI3 device for PCI slot reset. It
14330	* disables the device interrupt and pci device, and aborts the internal FCP
14331	* pending I/Os.
14332	**/
14333	static void
14334	lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14335	{
14336	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14337	"2710 PCI channel disable preparing for reset\n");
14338
14339	/* Block any management I/Os to the device */
14340	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14341
14342	/* Block all SCSI devices' I/Os on the host */
14343	lpfc_scsi_dev_block(phba);
14344
14345	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
14346	lpfc_sli_flush_io_rings(phba);
14347
14348	/* stop all timers */
14349	lpfc_stop_hba_timers(phba);
14350
14351	/* Disable interrupt and pci device */
14352	lpfc_sli_disable_intr(phba);
14353	pci_disable_device(dev: phba->pcidev);
14354	}
14355
14356	/**
14357	* lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14358	* @phba: pointer to lpfc hba data structure.
14359	*
14360	* This routine is called to prepare the SLI3 device for PCI slot permanently
14361	* disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14362	* pending I/Os.
14363	**/
14364	static void
14365	lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14366	{
14367	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14368	"2711 PCI channel permanent disable for failure\n");
14369	/* Block all SCSI devices' I/Os on the host */
14370	lpfc_scsi_dev_block(phba);
14371	lpfc_sli4_prep_dev_for_reset(phba);
14372
14373	/* stop all timers */
14374	lpfc_stop_hba_timers(phba);
14375
14376	/* Clean up all driver's outstanding SCSI I/Os */
14377	lpfc_sli_flush_io_rings(phba);
14378	}
14379
14380	/**
14381	* lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14382	* @pdev: pointer to PCI device.
14383	* @state: the current PCI connection state.
14384	*
14385	* This routine is called from the PCI subsystem for I/O error handling to
14386	* device with SLI-3 interface spec. This function is called by the PCI
14387	* subsystem after a PCI bus error affecting this device has been detected.
14388	* When this function is invoked, it will need to stop all the I/Os and
14389	* interrupt(s) to the device. Once that is done, it will return
14390	* PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14391	* as desired.
14392	*
14393	* Return codes
14394	* PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14395	* PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14396	* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14397	**/
14398	static pci_ers_result_t
14399	lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14400	{
14401	struct Scsi_Host *shost = pci_get_drvdata(pdev);
14402	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14403
14404	switch (state) {
14405	case pci_channel_io_normal:
14406	/* Non-fatal error, prepare for recovery */
14407	lpfc_sli_prep_dev_for_recover(phba);
14408	return PCI_ERS_RESULT_CAN_RECOVER;
14409	case pci_channel_io_frozen:
14410	/* Fatal error, prepare for slot reset */
14411	lpfc_sli_prep_dev_for_reset(phba);
14412	return PCI_ERS_RESULT_NEED_RESET;
14413	case pci_channel_io_perm_failure:
14414	/* Permanent failure, prepare for device down */
14415	lpfc_sli_prep_dev_for_perm_failure(phba);
14416	return PCI_ERS_RESULT_DISCONNECT;
14417	default:
14418	/* Unknown state, prepare and request slot reset */
14419	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14420	"0472 Unknown PCI error state: x%x\n", state);
14421	lpfc_sli_prep_dev_for_reset(phba);
14422	return PCI_ERS_RESULT_NEED_RESET;
14423	}
14424	}
14425
14426	/**
14427	* lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14428	* @pdev: pointer to PCI device.
14429	*
14430	* This routine is called from the PCI subsystem for error handling to
14431	* device with SLI-3 interface spec. This is called after PCI bus has been
14432	* reset to restart the PCI card from scratch, as if from a cold-boot.
14433	* During the PCI subsystem error recovery, after driver returns
14434	* PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14435	* recovery and then call this routine before calling the .resume method
14436	* to recover the device. This function will initialize the HBA device,
14437	* enable the interrupt, but it will just put the HBA to offline state
14438	* without passing any I/O traffic.
14439	*
14440	* Return codes
14441	* PCI_ERS_RESULT_RECOVERED - the device has been recovered
14442	* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14443	*/
14444	static pci_ers_result_t
14445	lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14446	{
14447	struct Scsi_Host *shost = pci_get_drvdata(pdev);
14448	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14449	struct lpfc_sli *psli = &phba->sli;
14450	uint32_t intr_mode;
14451
14452	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14453	if (pci_enable_device_mem(dev: pdev)) {
14454	printk(KERN_ERR "lpfc: Cannot re-enable "
14455	"PCI device after reset.\n");
14456	return PCI_ERS_RESULT_DISCONNECT;
14457	}
14458
14459	pci_restore_state(dev: pdev);
14460
14461	/*
14462	* As the new kernel behavior of pci_restore_state() API call clears
14463	* device saved_state flag, need to save the restored state again.
14464	*/
14465	pci_save_state(dev: pdev);
14466
14467	if (pdev->is_busmaster)
14468	pci_set_master(dev: pdev);
14469
14470	spin_lock_irq(lock: &phba->hbalock);
14471	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14472	spin_unlock_irq(lock: &phba->hbalock);
14473
14474	/* Configure and enable interrupt */
14475	intr_mode = lpfc_sli_enable_intr(phba, cfg_mode: phba->intr_mode);
14476	if (intr_mode == LPFC_INTR_ERROR) {
14477	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14478	"0427 Cannot re-enable interrupt after "
14479	"slot reset.\n");
14480	return PCI_ERS_RESULT_DISCONNECT;
14481	} else
14482	phba->intr_mode = intr_mode;
14483
14484	/* Take device offline, it will perform cleanup */
14485	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14486	lpfc_offline(phba);
14487	lpfc_sli_brdrestart(phba);
14488
14489	/* Log the current active interrupt mode */
14490	lpfc_log_intr_mode(phba, intr_mode: phba->intr_mode);
14491
14492	return PCI_ERS_RESULT_RECOVERED;
14493	}
14494
14495	/**
14496	* lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14497	* @pdev: pointer to PCI device
14498	*
14499	* This routine is called from the PCI subsystem for error handling to device
14500	* with SLI-3 interface spec. It is called when kernel error recovery tells
14501	* the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14502	* error recovery. After this call, traffic can start to flow from this device
14503	* again.
14504	*/
14505	static void
14506	lpfc_io_resume_s3(struct pci_dev *pdev)
14507	{
14508	struct Scsi_Host *shost = pci_get_drvdata(pdev);
14509	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14510
14511	/* Bring device online, it will be no-op for non-fatal error resume */
14512	lpfc_online(phba);
14513	}
14514
14515	/**
14516	* lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14517	* @phba: pointer to lpfc hba data structure.
14518	*
14519	* returns the number of ELS/CT IOCBs to reserve
14520	**/
14521	int
14522	lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14523	{
14524	int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14525
14526	if (phba->sli_rev == LPFC_SLI_REV4) {
14527	if (max_xri <= 100)
14528	return 10;
14529	else if (max_xri <= 256)
14530	return 25;
14531	else if (max_xri <= 512)
14532	return 50;
14533	else if (max_xri <= 1024)
14534	return 100;
14535	else if (max_xri <= 1536)
14536	return 150;
14537	else if (max_xri <= 2048)
14538	return 200;
14539	else
14540	return 250;
14541	} else
14542	return 0;
14543	}
14544
14545	/**
14546	* lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14547	* @phba: pointer to lpfc hba data structure.
14548	*
14549	* returns the number of ELS/CT + NVMET IOCBs to reserve
14550	**/
14551	int
14552	lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14553	{
14554	int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14555
14556	if (phba->nvmet_support)
14557	max_xri += LPFC_NVMET_BUF_POST;
14558	return max_xri;
14559	}
14560
14561
14562	static int
14563	lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14564	uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14565	const struct firmware *fw)
14566	{
14567	int rc;
14568	u8 sli_family;
14569
14570	sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14571	/* Three cases: (1) FW was not supported on the detected adapter.
14572	* (2) FW update has been locked out administratively.
14573	* (3) Some other error during FW update.
14574	* In each case, an unmaskable message is written to the console
14575	* for admin diagnosis.
14576	*/
14577	if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14578	(sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14579	magic_number != MAGIC_NUMBER_G6) ||
14580	(sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14581	magic_number != MAGIC_NUMBER_G7) ||
14582	(sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14583	magic_number != MAGIC_NUMBER_G7P)) {
14584	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14585	"3030 This firmware version is not supported on"
14586	" this HBA model. Device:%x Magic:%x Type:%x "
14587	"ID:%x Size %d %zd\n",
14588	phba->pcidev->device, magic_number, ftype, fid,
14589	fsize, fw->size);
14590	rc = -EINVAL;
14591	} else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14592	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14593	"3021 Firmware downloads have been prohibited "
14594	"by a system configuration setting on "
14595	"Device:%x Magic:%x Type:%x ID:%x Size %d "
14596	"%zd\n",
14597	phba->pcidev->device, magic_number, ftype, fid,
14598	fsize, fw->size);
14599	rc = -EACCES;
14600	} else {
14601	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14602	"3022 FW Download failed. Add Status x%x "
14603	"Device:%x Magic:%x Type:%x ID:%x Size %d "
14604	"%zd\n",
14605	offset, phba->pcidev->device, magic_number,
14606	ftype, fid, fsize, fw->size);
14607	rc = -EIO;
14608	}
14609	return rc;
14610	}
14611
14612	/**
14613	* lpfc_write_firmware - attempt to write a firmware image to the port
14614	* @fw: pointer to firmware image returned from request_firmware.
14615	* @context: pointer to firmware image returned from request_firmware.
14616	*
14617	**/
14618	static void
14619	lpfc_write_firmware(const struct firmware *fw, void *context)
14620	{
14621	struct lpfc_hba *phba = (struct lpfc_hba *)context;
14622	char fwrev[FW_REV_STR_SIZE];
14623	struct lpfc_grp_hdr *image;
14624	struct list_head dma_buffer_list;
14625	int i, rc = 0;
14626	struct lpfc_dmabuf *dmabuf, *next;
14627	uint32_t offset = 0, temp_offset = 0;
14628	uint32_t magic_number, ftype, fid, fsize;
14629
14630	/* It can be null in no-wait mode, sanity check */
14631	if (!fw) {
14632	rc = -ENXIO;
14633	goto out;
14634	}
14635	image = (struct lpfc_grp_hdr *)fw->data;
14636
14637	magic_number = be32_to_cpu(image->magic_number);
14638	ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14639	fid = bf_get_be32(lpfc_grp_hdr_id, image);
14640	fsize = be32_to_cpu(image->size);
14641
14642	INIT_LIST_HEAD(list: &dma_buffer_list);
14643	lpfc_decode_firmware_rev(phba, fwrev, 1);
14644	if (strncmp(fwrev, image->revision, strnlen(p: image->revision, maxlen: 16))) {
14645	lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
14646	"3023 Updating Firmware, Current Version:%s "
14647	"New Version:%s\n",
14648	fwrev, image->revision);
14649	for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14650	dmabuf = kzalloc(size: sizeof(struct lpfc_dmabuf),
14651	GFP_KERNEL);
14652	if (!dmabuf) {
14653	rc = -ENOMEM;
14654	goto release_out;
14655	}
14656	dmabuf->virt = dma_alloc_coherent(dev: &phba->pcidev->dev,
14657	SLI4_PAGE_SIZE,
14658	dma_handle: &dmabuf->phys,
14659	GFP_KERNEL);
14660	if (!dmabuf->virt) {
14661	kfree(objp: dmabuf);
14662	rc = -ENOMEM;
14663	goto release_out;
14664	}
14665	list_add_tail(new: &dmabuf->list, head: &dma_buffer_list);
14666	}
14667	while (offset < fw->size) {
14668	temp_offset = offset;
14669	list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14670	if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14671	memcpy(dmabuf->virt,
14672	fw->data + temp_offset,
14673	fw->size - temp_offset);
14674	temp_offset = fw->size;
14675	break;
14676	}
14677	memcpy(dmabuf->virt, fw->data + temp_offset,
14678	SLI4_PAGE_SIZE);
14679	temp_offset += SLI4_PAGE_SIZE;
14680	}
14681	rc = lpfc_wr_object(phba, &dma_buffer_list,
14682	(fw->size - offset), &offset);
14683	if (rc) {
14684	rc = lpfc_log_write_firmware_error(phba, offset,
14685	magic_number,
14686	ftype,
14687	fid,
14688	fsize,
14689	fw);
14690	goto release_out;
14691	}
14692	}
14693	rc = offset;
14694	} else
14695	lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
14696	"3029 Skipped Firmware update, Current "
14697	"Version:%s New Version:%s\n",
14698	fwrev, image->revision);
14699
14700	release_out:
14701	list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14702	list_del(entry: &dmabuf->list);
14703	dma_free_coherent(dev: &phba->pcidev->dev, SLI4_PAGE_SIZE,
14704	cpu_addr: dmabuf->virt, dma_handle: dmabuf->phys);
14705	kfree(objp: dmabuf);
14706	}
14707	release_firmware(fw);
14708	out:
14709	if (rc < 0)
14710	lpfc_log_msg(phba, KERN_ERR, LOG_INIT | LOG_SLI,
14711	"3062 Firmware update error, status %d.\n", rc);
14712	else
14713	lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
14714	"3024 Firmware update success: size %d.\n", rc);
14715	}
14716
14717	/**
14718	* lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14719	* @phba: pointer to lpfc hba data structure.
14720	* @fw_upgrade: which firmware to update.
14721	*
14722	* This routine is called to perform Linux generic firmware upgrade on device
14723	* that supports such feature.
14724	**/
14725	int
14726	lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14727	{
14728	char file_name[ELX_FW_NAME_SIZE] = {0};
14729	int ret;
14730	const struct firmware *fw;
14731
14732	/* Only supported on SLI4 interface type 2 for now */
14733	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14734	LPFC_SLI_INTF_IF_TYPE_2)
14735	return -EPERM;
14736
14737	scnprintf(buf: file_name, size: sizeof(file_name), fmt: "%s.grp", phba->ModelName);
14738
14739	if (fw_upgrade == INT_FW_UPGRADE) {
14740	ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14741	name: file_name, device: &phba->pcidev->dev,
14742	GFP_KERNEL, context: (void *)phba,
14743	cont: lpfc_write_firmware);
14744	} else if (fw_upgrade == RUN_FW_UPGRADE) {
14745	ret = request_firmware(fw: &fw, name: file_name, device: &phba->pcidev->dev);
14746	if (!ret)
14747	lpfc_write_firmware(fw, context: (void *)phba);
14748	} else {
14749	ret = -EINVAL;
14750	}
14751
14752	return ret;
14753	}
14754
14755	/**
14756	* lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14757	* @pdev: pointer to PCI device
14758	* @pid: pointer to PCI device identifier
14759	*
14760	* This routine is called from the kernel's PCI subsystem to device with
14761	* SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14762	* presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14763	* information of the device and driver to see if the driver state that it
14764	* can support this kind of device. If the match is successful, the driver
14765	* core invokes this routine. If this routine determines it can claim the HBA,
14766	* it does all the initialization that it needs to do to handle the HBA
14767	* properly.
14768	*
14769	* Return code
14770	* 0 - driver can claim the device
14771	* negative value - driver can not claim the device
14772	**/
14773	static int
14774	lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14775	{
14776	struct lpfc_hba *phba;
14777	struct lpfc_vport *vport = NULL;
14778	struct Scsi_Host *shost = NULL;
14779	int error;
14780	uint32_t cfg_mode, intr_mode;
14781
14782	/* Allocate memory for HBA structure */
14783	phba = lpfc_hba_alloc(pdev);
14784	if (!phba)
14785	return -ENOMEM;
14786
14787	INIT_LIST_HEAD(list: &phba->poll_list);
14788
14789	/* Perform generic PCI device enabling operation */
14790	error = lpfc_enable_pci_dev(phba);
14791	if (error)
14792	goto out_free_phba;
14793
14794	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
14795	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14796	if (error)
14797	goto out_disable_pci_dev;
14798
14799	/* Set up SLI-4 specific device PCI memory space */
14800	error = lpfc_sli4_pci_mem_setup(phba);
14801	if (error) {
14802	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14803	"1410 Failed to set up pci memory space.\n");
14804	goto out_disable_pci_dev;
14805	}
14806
14807	/* Set up SLI-4 Specific device driver resources */
14808	error = lpfc_sli4_driver_resource_setup(phba);
14809	if (error) {
14810	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14811	"1412 Failed to set up driver resource.\n");
14812	goto out_unset_pci_mem_s4;
14813	}
14814
14815	INIT_LIST_HEAD(list: &phba->active_rrq_list);
14816	INIT_LIST_HEAD(list: &phba->fcf.fcf_pri_list);
14817
14818	/* Set up common device driver resources */
14819	error = lpfc_setup_driver_resource_phase2(phba);
14820	if (error) {
14821	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14822	"1414 Failed to set up driver resource.\n");
14823	goto out_unset_driver_resource_s4;
14824	}
14825
14826	/* Get the default values for Model Name and Description */
14827	lpfc_get_hba_model_desc(phba, mdp: phba->ModelName, descp: phba->ModelDesc);
14828
14829	/* Now, trying to enable interrupt and bring up the device */
14830	cfg_mode = phba->cfg_use_msi;
14831
14832	/* Put device to a known state before enabling interrupt */
14833	phba->pport = NULL;
14834	lpfc_stop_port(phba);
14835
14836	/* Init cpu_map array */
14837	lpfc_cpu_map_array_init(phba);
14838
14839	/* Init hba_eq_hdl array */
14840	lpfc_hba_eq_hdl_array_init(phba);
14841
14842	/* Configure and enable interrupt */
14843	intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14844	if (intr_mode == LPFC_INTR_ERROR) {
14845	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14846	"0426 Failed to enable interrupt.\n");
14847	error = -ENODEV;
14848	goto out_unset_driver_resource;
14849	}
14850	/* Default to single EQ for non-MSI-X */
14851	if (phba->intr_type != MSIX) {
14852	phba->cfg_irq_chann = 1;
14853	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14854	if (phba->nvmet_support)
14855	phba->cfg_nvmet_mrq = 1;
14856	}
14857	}
14858	lpfc_cpu_affinity_check(phba, vectors: phba->cfg_irq_chann);
14859
14860	/* Create SCSI host to the physical port */
14861	error = lpfc_create_shost(phba);
14862	if (error) {
14863	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14864	"1415 Failed to create scsi host.\n");
14865	goto out_disable_intr;
14866	}
14867	vport = phba->pport;
14868	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14869
14870	/* Configure sysfs attributes */
14871	error = lpfc_alloc_sysfs_attr(vport);
14872	if (error) {
14873	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14874	"1416 Failed to allocate sysfs attr\n");
14875	goto out_destroy_shost;
14876	}
14877
14878	/* Set up SLI-4 HBA */
14879	if (lpfc_sli4_hba_setup(phba)) {
14880	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14881	"1421 Failed to set up hba\n");
14882	error = -ENODEV;
14883	goto out_free_sysfs_attr;
14884	}
14885
14886	/* Log the current active interrupt mode */
14887	phba->intr_mode = intr_mode;
14888	lpfc_log_intr_mode(phba, intr_mode);
14889
14890	/* Perform post initialization setup */
14891	lpfc_post_init_setup(phba);
14892
14893	/* NVME support in FW earlier in the driver load corrects the
14894	* FC4 type making a check for nvme_support unnecessary.
14895	*/
14896	if (phba->nvmet_support == 0) {
14897	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14898	/* Create NVME binding with nvme_fc_transport. This
14899	* ensures the vport is initialized. If the localport
14900	* create fails, it should not unload the driver to
14901	* support field issues.
14902	*/
14903	error = lpfc_nvme_create_localport(vport);
14904	if (error) {
14905	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14906	"6004 NVME registration "
14907	"failed, error x%x\n",
14908	error);
14909	}
14910	}
14911	}
14912
14913	/* check for firmware upgrade or downgrade */
14914	if (phba->cfg_request_firmware_upgrade)
14915	lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14916
14917	/* Check if there are static vports to be created. */
14918	lpfc_create_static_vport(phba);
14919
14920	timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14921	cpuhp_state_add_instance_nocalls(state: lpfc_cpuhp_state, node: &phba->cpuhp);
14922
14923	return 0;
14924
14925	out_free_sysfs_attr:
14926	lpfc_free_sysfs_attr(vport);
14927	out_destroy_shost:
14928	lpfc_destroy_shost(phba);
14929	out_disable_intr:
14930	lpfc_sli4_disable_intr(phba);
14931	out_unset_driver_resource:
14932	lpfc_unset_driver_resource_phase2(phba);
14933	out_unset_driver_resource_s4:
14934	lpfc_sli4_driver_resource_unset(phba);
14935	out_unset_pci_mem_s4:
14936	lpfc_sli4_pci_mem_unset(phba);
14937	out_disable_pci_dev:
14938	lpfc_disable_pci_dev(phba);
14939	if (shost)
14940	scsi_host_put(t: shost);
14941	out_free_phba:
14942	lpfc_hba_free(phba);
14943	return error;
14944	}
14945
14946	/**
14947	* lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14948	* @pdev: pointer to PCI device
14949	*
14950	* This routine is called from the kernel's PCI subsystem to device with
14951	* SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14952	* removed from PCI bus, it performs all the necessary cleanup for the HBA
14953	* device to be removed from the PCI subsystem properly.
14954	**/
14955	static void
14956	lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14957	{
14958	struct Scsi_Host *shost = pci_get_drvdata(pdev);
14959	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14960	struct lpfc_vport **vports;
14961	struct lpfc_hba *phba = vport->phba;
14962	int i;
14963
14964	/* Mark the device unloading flag */
14965	set_bit(nr: FC_UNLOADING, addr: &vport->load_flag);
14966	if (phba->cgn_i)
14967	lpfc_unreg_congestion_buf(phba);
14968
14969	lpfc_free_sysfs_attr(vport);
14970
14971	/* Release all the vports against this physical port */
14972	vports = lpfc_create_vport_work_array(phba);
14973	if (vports != NULL)
14974	for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14975	if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14976	continue;
14977	fc_vport_terminate(vport: vports[i]->fc_vport);
14978	}
14979	lpfc_destroy_vport_work_array(phba, vports);
14980
14981	/* Remove FC host with the physical port */
14982	fc_remove_host(shost);
14983	scsi_remove_host(shost);
14984
14985	/* Perform ndlp cleanup on the physical port. The nvme and nvmet
14986	* localports are destroyed after to cleanup all transport memory.
14987	*/
14988	lpfc_cleanup(vport);
14989	lpfc_nvmet_destroy_targetport(phba);
14990	lpfc_nvme_destroy_localport(vport);
14991
14992	/* De-allocate multi-XRI pools */
14993	if (phba->cfg_xri_rebalancing)
14994	lpfc_destroy_multixri_pools(phba);
14995
14996	/*
14997	* Bring down the SLI Layer. This step disables all interrupts,
14998	* clears the rings, discards all mailbox commands, and resets
14999	* the HBA FCoE function.
15000	*/
15001	lpfc_debugfs_terminate(vport);
15002
15003	lpfc_stop_hba_timers(phba);
15004	spin_lock_irq(lock: &phba->port_list_lock);
15005	list_del_init(entry: &vport->listentry);
15006	spin_unlock_irq(lock: &phba->port_list_lock);
15007
15008	/* Perform scsi free before driver resource_unset since scsi
15009	* buffers are released to their corresponding pools here.
15010	*/
15011	lpfc_io_free(phba);
15012	lpfc_free_iocb_list(phba);
15013	lpfc_sli4_hba_unset(phba);
15014
15015	lpfc_unset_driver_resource_phase2(phba);
15016	lpfc_sli4_driver_resource_unset(phba);
15017
15018	/* Unmap adapter Control and Doorbell registers */
15019	lpfc_sli4_pci_mem_unset(phba);
15020
15021	/* Release PCI resources and disable device's PCI function */
15022	scsi_host_put(t: shost);
15023	lpfc_disable_pci_dev(phba);
15024
15025	/* Finally, free the driver's device data structure */
15026	lpfc_hba_free(phba);
15027
15028	return;
15029	}
15030
15031	/**
15032	* lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
15033	* @dev_d: pointer to device
15034	*
15035	* This routine is called from the kernel's PCI subsystem to support system
15036	* Power Management (PM) to device with SLI-4 interface spec. When PM invokes
15037	* this method, it quiesces the device by stopping the driver's worker
15038	* thread for the device, turning off device's interrupt and DMA, and bring
15039	* the device offline. Note that as the driver implements the minimum PM
15040	* requirements to a power-aware driver's PM support for suspend/resume -- all
15041	* the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
15042	* method call will be treated as SUSPEND and the driver will fully
15043	* reinitialize its device during resume() method call, the driver will set
15044	* device to PCI_D3hot state in PCI config space instead of setting it
15045	* according to the @msg provided by the PM.
15046	*
15047	* Return code
15048	* 0 - driver suspended the device
15049	* Error otherwise
15050	**/
15051	static int __maybe_unused
15052	lpfc_pci_suspend_one_s4(struct device *dev_d)
15053	{
15054	struct Scsi_Host *shost = dev_get_drvdata(dev: dev_d);
15055	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15056
15057	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15058	"2843 PCI device Power Management suspend.\n");
15059
15060	/* Bring down the device */
15061	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15062	lpfc_offline(phba);
15063	kthread_stop(k: phba->worker_thread);
15064
15065	/* Disable interrupt from device */
15066	lpfc_sli4_disable_intr(phba);
15067	lpfc_sli4_queue_destroy(phba);
15068
15069	return 0;
15070	}
15071
15072	/**
15073	* lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
15074	* @dev_d: pointer to device
15075	*
15076	* This routine is called from the kernel's PCI subsystem to support system
15077	* Power Management (PM) to device with SLI-4 interface spac. When PM invokes
15078	* this method, it restores the device's PCI config space state and fully
15079	* reinitializes the device and brings it online. Note that as the driver
15080	* implements the minimum PM requirements to a power-aware driver's PM for
15081	* suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
15082	* to the suspend() method call will be treated as SUSPEND and the driver
15083	* will fully reinitialize its device during resume() method call, the device
15084	* will be set to PCI_D0 directly in PCI config space before restoring the
15085	* state.
15086	*
15087	* Return code
15088	* 0 - driver suspended the device
15089	* Error otherwise
15090	**/
15091	static int __maybe_unused
15092	lpfc_pci_resume_one_s4(struct device *dev_d)
15093	{
15094	struct Scsi_Host *shost = dev_get_drvdata(dev: dev_d);
15095	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15096	uint32_t intr_mode;
15097	int error;
15098
15099	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15100	"0292 PCI device Power Management resume.\n");
15101
15102	/* Startup the kernel thread for this host adapter. */
15103	phba->worker_thread = kthread_run(lpfc_do_work, phba,
15104	"lpfc_worker_%d", phba->brd_no);
15105	if (IS_ERR(ptr: phba->worker_thread)) {
15106	error = PTR_ERR(ptr: phba->worker_thread);
15107	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15108	"0293 PM resume failed to start worker "
15109	"thread: error=x%x.\n", error);
15110	return error;
15111	}
15112
15113	/* Configure and enable interrupt */
15114	intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode: phba->intr_mode);
15115	if (intr_mode == LPFC_INTR_ERROR) {
15116	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15117	"0294 PM resume Failed to enable interrupt\n");
15118	return -EIO;
15119	} else
15120	phba->intr_mode = intr_mode;
15121
15122	/* Restart HBA and bring it online */
15123	lpfc_sli_brdrestart(phba);
15124	lpfc_online(phba);
15125
15126	/* Log the current active interrupt mode */
15127	lpfc_log_intr_mode(phba, intr_mode: phba->intr_mode);
15128
15129	return 0;
15130	}
15131
15132	/**
15133	* lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15134	* @phba: pointer to lpfc hba data structure.
15135	*
15136	* This routine is called to prepare the SLI4 device for PCI slot recover. It
15137	* aborts all the outstanding SCSI I/Os to the pci device.
15138	**/
15139	static void
15140	lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15141	{
15142	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15143	"2828 PCI channel I/O abort preparing for recovery\n");
15144	/*
15145	* There may be errored I/Os through HBA, abort all I/Os on txcmplq
15146	* and let the SCSI mid-layer to retry them to recover.
15147	*/
15148	lpfc_sli_abort_fcp_rings(phba);
15149	}
15150
15151	/**
15152	* lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15153	* @phba: pointer to lpfc hba data structure.
15154	*
15155	* This routine is called to prepare the SLI4 device for PCI slot reset. It
15156	* disables the device interrupt and pci device, and aborts the internal FCP
15157	* pending I/Os.
15158	**/
15159	static void
15160	lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15161	{
15162	int offline = pci_channel_offline(pdev: phba->pcidev);
15163
15164	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15165	"2826 PCI channel disable preparing for reset offline"
15166	" %d\n", offline);
15167
15168	/* Block any management I/Os to the device */
15169	lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15170
15171
15172	/* HBA_PCI_ERR was set in io_error_detect */
15173	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
15174	/* Flush all driver's outstanding I/Os as we are to reset */
15175	lpfc_sli_flush_io_rings(phba);
15176	lpfc_offline(phba);
15177
15178	/* stop all timers */
15179	lpfc_stop_hba_timers(phba);
15180
15181	lpfc_sli4_queue_destroy(phba);
15182	/* Disable interrupt and pci device */
15183	lpfc_sli4_disable_intr(phba);
15184	pci_disable_device(dev: phba->pcidev);
15185	}
15186
15187	/**
15188	* lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15189	* @phba: pointer to lpfc hba data structure.
15190	*
15191	* This routine is called to prepare the SLI4 device for PCI slot permanently
15192	* disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15193	* pending I/Os.
15194	**/
15195	static void
15196	lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15197	{
15198	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15199	"2827 PCI channel permanent disable for failure\n");
15200
15201	/* Block all SCSI devices' I/Os on the host */
15202	lpfc_scsi_dev_block(phba);
15203
15204	/* stop all timers */
15205	lpfc_stop_hba_timers(phba);
15206
15207	/* Clean up all driver's outstanding I/Os */
15208	lpfc_sli_flush_io_rings(phba);
15209	}
15210
15211	/**
15212	* lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15213	* @pdev: pointer to PCI device.
15214	* @state: the current PCI connection state.
15215	*
15216	* This routine is called from the PCI subsystem for error handling to device
15217	* with SLI-4 interface spec. This function is called by the PCI subsystem
15218	* after a PCI bus error affecting this device has been detected. When this
15219	* function is invoked, it will need to stop all the I/Os and interrupt(s)
15220	* to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15221	* for the PCI subsystem to perform proper recovery as desired.
15222	*
15223	* Return codes
15224	* PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15225	* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15226	**/
15227	static pci_ers_result_t
15228	lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15229	{
15230	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15231	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15232	bool hba_pci_err;
15233
15234	switch (state) {
15235	case pci_channel_io_normal:
15236	/* Non-fatal error, prepare for recovery */
15237	lpfc_sli4_prep_dev_for_recover(phba);
15238	return PCI_ERS_RESULT_CAN_RECOVER;
15239	case pci_channel_io_frozen:
15240	hba_pci_err = test_and_set_bit(nr: HBA_PCI_ERR, addr: &phba->bit_flags);
15241	/* Fatal error, prepare for slot reset */
15242	if (!hba_pci_err)
15243	lpfc_sli4_prep_dev_for_reset(phba);
15244	else
15245	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15246	"2832 Already handling PCI error "
15247	"state: x%x\n", state);
15248	return PCI_ERS_RESULT_NEED_RESET;
15249	case pci_channel_io_perm_failure:
15250	set_bit(nr: HBA_PCI_ERR, addr: &phba->bit_flags);
15251	/* Permanent failure, prepare for device down */
15252	lpfc_sli4_prep_dev_for_perm_failure(phba);
15253	return PCI_ERS_RESULT_DISCONNECT;
15254	default:
15255	hba_pci_err = test_and_set_bit(nr: HBA_PCI_ERR, addr: &phba->bit_flags);
15256	if (!hba_pci_err)
15257	lpfc_sli4_prep_dev_for_reset(phba);
15258	/* Unknown state, prepare and request slot reset */
15259	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15260	"2825 Unknown PCI error state: x%x\n", state);
15261	lpfc_sli4_prep_dev_for_reset(phba);
15262	return PCI_ERS_RESULT_NEED_RESET;
15263	}
15264	}
15265
15266	/**
15267	* lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15268	* @pdev: pointer to PCI device.
15269	*
15270	* This routine is called from the PCI subsystem for error handling to device
15271	* with SLI-4 interface spec. It is called after PCI bus has been reset to
15272	* restart the PCI card from scratch, as if from a cold-boot. During the
15273	* PCI subsystem error recovery, after the driver returns
15274	* PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15275	* recovery and then call this routine before calling the .resume method to
15276	* recover the device. This function will initialize the HBA device, enable
15277	* the interrupt, but it will just put the HBA to offline state without
15278	* passing any I/O traffic.
15279	*
15280	* Return codes
15281	* PCI_ERS_RESULT_RECOVERED - the device has been recovered
15282	* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15283	*/
15284	static pci_ers_result_t
15285	lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15286	{
15287	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15288	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15289	struct lpfc_sli *psli = &phba->sli;
15290	uint32_t intr_mode;
15291	bool hba_pci_err;
15292
15293	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15294	if (pci_enable_device_mem(dev: pdev)) {
15295	printk(KERN_ERR "lpfc: Cannot re-enable "
15296	"PCI device after reset.\n");
15297	return PCI_ERS_RESULT_DISCONNECT;
15298	}
15299
15300	pci_restore_state(dev: pdev);
15301
15302	hba_pci_err = test_and_clear_bit(nr: HBA_PCI_ERR, addr: &phba->bit_flags);
15303	if (!hba_pci_err)
15304	dev_info(&pdev->dev,
15305	"hba_pci_err was not set, recovering slot reset.\n");
15306	/*
15307	* As the new kernel behavior of pci_restore_state() API call clears
15308	* device saved_state flag, need to save the restored state again.
15309	*/
15310	pci_save_state(dev: pdev);
15311
15312	if (pdev->is_busmaster)
15313	pci_set_master(dev: pdev);
15314
15315	spin_lock_irq(lock: &phba->hbalock);
15316	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15317	spin_unlock_irq(lock: &phba->hbalock);
15318
15319	/* Init cpu_map array */
15320	lpfc_cpu_map_array_init(phba);
15321	/* Configure and enable interrupt */
15322	intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode: phba->intr_mode);
15323	if (intr_mode == LPFC_INTR_ERROR) {
15324	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15325	"2824 Cannot re-enable interrupt after "
15326	"slot reset.\n");
15327	return PCI_ERS_RESULT_DISCONNECT;
15328	} else
15329	phba->intr_mode = intr_mode;
15330	lpfc_cpu_affinity_check(phba, vectors: phba->cfg_irq_chann);
15331
15332	/* Log the current active interrupt mode */
15333	lpfc_log_intr_mode(phba, intr_mode: phba->intr_mode);
15334
15335	return PCI_ERS_RESULT_RECOVERED;
15336	}
15337
15338	/**
15339	* lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15340	* @pdev: pointer to PCI device
15341	*
15342	* This routine is called from the PCI subsystem for error handling to device
15343	* with SLI-4 interface spec. It is called when kernel error recovery tells
15344	* the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15345	* error recovery. After this call, traffic can start to flow from this device
15346	* again.
15347	**/
15348	static void
15349	lpfc_io_resume_s4(struct pci_dev *pdev)
15350	{
15351	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15352	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15353
15354	/*
15355	* In case of slot reset, as function reset is performed through
15356	* mailbox command which needs DMA to be enabled, this operation
15357	* has to be moved to the io resume phase. Taking device offline
15358	* will perform the necessary cleanup.
15359	*/
15360	if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15361	/* Perform device reset */
15362	lpfc_sli_brdrestart(phba);
15363	/* Bring the device back online */
15364	lpfc_online(phba);
15365	}
15366	}
15367
15368	/**
15369	* lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15370	* @pdev: pointer to PCI device
15371	* @pid: pointer to PCI device identifier
15372	*
15373	* This routine is to be registered to the kernel's PCI subsystem. When an
15374	* Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15375	* at PCI device-specific information of the device and driver to see if the
15376	* driver state that it can support this kind of device. If the match is
15377	* successful, the driver core invokes this routine. This routine dispatches
15378	* the action to the proper SLI-3 or SLI-4 device probing routine, which will
15379	* do all the initialization that it needs to do to handle the HBA device
15380	* properly.
15381	*
15382	* Return code
15383	* 0 - driver can claim the device
15384	* negative value - driver can not claim the device
15385	**/
15386	static int
15387	lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15388	{
15389	int rc;
15390	struct lpfc_sli_intf intf;
15391
15392	if (pci_read_config_dword(dev: pdev, LPFC_SLI_INTF, val: &intf.word0))
15393	return -ENODEV;
15394
15395	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15396	(bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15397	rc = lpfc_pci_probe_one_s4(pdev, pid);
15398	else
15399	rc = lpfc_pci_probe_one_s3(pdev, pid);
15400
15401	return rc;
15402	}
15403
15404	/**
15405	* lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15406	* @pdev: pointer to PCI device
15407	*
15408	* This routine is to be registered to the kernel's PCI subsystem. When an
15409	* Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15410	* This routine dispatches the action to the proper SLI-3 or SLI-4 device
15411	* remove routine, which will perform all the necessary cleanup for the
15412	* device to be removed from the PCI subsystem properly.
15413	**/
15414	static void
15415	lpfc_pci_remove_one(struct pci_dev *pdev)
15416	{
15417	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15418	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15419
15420	switch (phba->pci_dev_grp) {
15421	case LPFC_PCI_DEV_LP:
15422	lpfc_pci_remove_one_s3(pdev);
15423	break;
15424	case LPFC_PCI_DEV_OC:
15425	lpfc_pci_remove_one_s4(pdev);
15426	break;
15427	default:
15428	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15429	"1424 Invalid PCI device group: 0x%x\n",
15430	phba->pci_dev_grp);
15431	break;
15432	}
15433	return;
15434	}
15435
15436	/**
15437	* lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15438	* @dev: pointer to device
15439	*
15440	* This routine is to be registered to the kernel's PCI subsystem to support
15441	* system Power Management (PM). When PM invokes this method, it dispatches
15442	* the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15443	* suspend the device.
15444	*
15445	* Return code
15446	* 0 - driver suspended the device
15447	* Error otherwise
15448	**/
15449	static int __maybe_unused
15450	lpfc_pci_suspend_one(struct device *dev)
15451	{
15452	struct Scsi_Host *shost = dev_get_drvdata(dev);
15453	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15454	int rc = -ENODEV;
15455
15456	switch (phba->pci_dev_grp) {
15457	case LPFC_PCI_DEV_LP:
15458	rc = lpfc_pci_suspend_one_s3(dev_d: dev);
15459	break;
15460	case LPFC_PCI_DEV_OC:
15461	rc = lpfc_pci_suspend_one_s4(dev_d: dev);
15462	break;
15463	default:
15464	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15465	"1425 Invalid PCI device group: 0x%x\n",
15466	phba->pci_dev_grp);
15467	break;
15468	}
15469	return rc;
15470	}
15471
15472	/**
15473	* lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15474	* @dev: pointer to device
15475	*
15476	* This routine is to be registered to the kernel's PCI subsystem to support
15477	* system Power Management (PM). When PM invokes this method, it dispatches
15478	* the action to the proper SLI-3 or SLI-4 device resume routine, which will
15479	* resume the device.
15480	*
15481	* Return code
15482	* 0 - driver suspended the device
15483	* Error otherwise
15484	**/
15485	static int __maybe_unused
15486	lpfc_pci_resume_one(struct device *dev)
15487	{
15488	struct Scsi_Host *shost = dev_get_drvdata(dev);
15489	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15490	int rc = -ENODEV;
15491
15492	switch (phba->pci_dev_grp) {
15493	case LPFC_PCI_DEV_LP:
15494	rc = lpfc_pci_resume_one_s3(dev_d: dev);
15495	break;
15496	case LPFC_PCI_DEV_OC:
15497	rc = lpfc_pci_resume_one_s4(dev_d: dev);
15498	break;
15499	default:
15500	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15501	"1426 Invalid PCI device group: 0x%x\n",
15502	phba->pci_dev_grp);
15503	break;
15504	}
15505	return rc;
15506	}
15507
15508	/**
15509	* lpfc_io_error_detected - lpfc method for handling PCI I/O error
15510	* @pdev: pointer to PCI device.
15511	* @state: the current PCI connection state.
15512	*
15513	* This routine is registered to the PCI subsystem for error handling. This
15514	* function is called by the PCI subsystem after a PCI bus error affecting
15515	* this device has been detected. When this routine is invoked, it dispatches
15516	* the action to the proper SLI-3 or SLI-4 device error detected handling
15517	* routine, which will perform the proper error detected operation.
15518	*
15519	* Return codes
15520	* PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15521	* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15522	**/
15523	static pci_ers_result_t
15524	lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15525	{
15526	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15527	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15528	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15529
15530	if (phba->link_state == LPFC_HBA_ERROR &&
15531	phba->hba_flag & HBA_IOQ_FLUSH)
15532	return PCI_ERS_RESULT_NEED_RESET;
15533
15534	switch (phba->pci_dev_grp) {
15535	case LPFC_PCI_DEV_LP:
15536	rc = lpfc_io_error_detected_s3(pdev, state);
15537	break;
15538	case LPFC_PCI_DEV_OC:
15539	rc = lpfc_io_error_detected_s4(pdev, state);
15540	break;
15541	default:
15542	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15543	"1427 Invalid PCI device group: 0x%x\n",
15544	phba->pci_dev_grp);
15545	break;
15546	}
15547	return rc;
15548	}
15549
15550	/**
15551	* lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15552	* @pdev: pointer to PCI device.
15553	*
15554	* This routine is registered to the PCI subsystem for error handling. This
15555	* function is called after PCI bus has been reset to restart the PCI card
15556	* from scratch, as if from a cold-boot. When this routine is invoked, it
15557	* dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15558	* routine, which will perform the proper device reset.
15559	*
15560	* Return codes
15561	* PCI_ERS_RESULT_RECOVERED - the device has been recovered
15562	* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15563	**/
15564	static pci_ers_result_t
15565	lpfc_io_slot_reset(struct pci_dev *pdev)
15566	{
15567	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15568	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15569	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15570
15571	switch (phba->pci_dev_grp) {
15572	case LPFC_PCI_DEV_LP:
15573	rc = lpfc_io_slot_reset_s3(pdev);
15574	break;
15575	case LPFC_PCI_DEV_OC:
15576	rc = lpfc_io_slot_reset_s4(pdev);
15577	break;
15578	default:
15579	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15580	"1428 Invalid PCI device group: 0x%x\n",
15581	phba->pci_dev_grp);
15582	break;
15583	}
15584	return rc;
15585	}
15586
15587	/**
15588	* lpfc_io_resume - lpfc method for resuming PCI I/O operation
15589	* @pdev: pointer to PCI device
15590	*
15591	* This routine is registered to the PCI subsystem for error handling. It
15592	* is called when kernel error recovery tells the lpfc driver that it is
15593	* OK to resume normal PCI operation after PCI bus error recovery. When
15594	* this routine is invoked, it dispatches the action to the proper SLI-3
15595	* or SLI-4 device io_resume routine, which will resume the device operation.
15596	**/
15597	static void
15598	lpfc_io_resume(struct pci_dev *pdev)
15599	{
15600	struct Scsi_Host *shost = pci_get_drvdata(pdev);
15601	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15602
15603	switch (phba->pci_dev_grp) {
15604	case LPFC_PCI_DEV_LP:
15605	lpfc_io_resume_s3(pdev);
15606	break;
15607	case LPFC_PCI_DEV_OC:
15608	lpfc_io_resume_s4(pdev);
15609	break;
15610	default:
15611	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15612	"1429 Invalid PCI device group: 0x%x\n",
15613	phba->pci_dev_grp);
15614	break;
15615	}
15616	return;
15617	}
15618
15619	/**
15620	* lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15621	* @phba: pointer to lpfc hba data structure.
15622	*
15623	* This routine checks to see if OAS is supported for this adapter. If
15624	* supported, the configure Flash Optimized Fabric flag is set. Otherwise,
15625	* the enable oas flag is cleared and the pool created for OAS device data
15626	* is destroyed.
15627	*
15628	**/
15629	static void
15630	lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15631	{
15632
15633	if (!phba->cfg_EnableXLane)
15634	return;
15635
15636	if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15637	phba->cfg_fof = 1;
15638	} else {
15639	phba->cfg_fof = 0;
15640	mempool_destroy(pool: phba->device_data_mem_pool);
15641	phba->device_data_mem_pool = NULL;
15642	}
15643
15644	return;
15645	}
15646
15647	/**
15648	* lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15649	* @phba: pointer to lpfc hba data structure.
15650	*
15651	* This routine checks to see if RAS is supported by the adapter. Check the
15652	* function through which RAS support enablement is to be done.
15653	**/
15654	void
15655	lpfc_sli4_ras_init(struct lpfc_hba *phba)
15656	{
15657	/* if ASIC_GEN_NUM >= 0xC) */
15658	if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15659	LPFC_SLI_INTF_IF_TYPE_6) ||
15660	(bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15661	LPFC_SLI_INTF_FAMILY_G6)) {
15662	phba->ras_fwlog.ras_hwsupport = true;
15663	if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15664	phba->cfg_ras_fwlog_buffsize)
15665	phba->ras_fwlog.ras_enabled = true;
15666	else
15667	phba->ras_fwlog.ras_enabled = false;
15668	} else {
15669	phba->ras_fwlog.ras_hwsupport = false;
15670	}
15671	}
15672
15673
15674	MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15675
15676	static const struct pci_error_handlers lpfc_err_handler = {
15677	.error_detected = lpfc_io_error_detected,
15678	.slot_reset = lpfc_io_slot_reset,
15679	.resume = lpfc_io_resume,
15680	};
15681
15682	static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15683	lpfc_pci_suspend_one,
15684	lpfc_pci_resume_one);
15685
15686	static struct pci_driver lpfc_driver = {
15687	.name = LPFC_DRIVER_NAME,
15688	.id_table = lpfc_id_table,
15689	.probe = lpfc_pci_probe_one,
15690	.remove = lpfc_pci_remove_one,
15691	.shutdown = lpfc_pci_remove_one,
15692	.driver.pm = &lpfc_pci_pm_ops_one,
15693	.err_handler = &lpfc_err_handler,
15694	};
15695
15696	static const struct file_operations lpfc_mgmt_fop = {
15697	.owner = THIS_MODULE,
15698	};
15699
15700	static struct miscdevice lpfc_mgmt_dev = {
15701	.minor = MISC_DYNAMIC_MINOR,
15702	.name = "lpfcmgmt",
15703	.fops = &lpfc_mgmt_fop,
15704	};
15705
15706	/**
15707	* lpfc_init - lpfc module initialization routine
15708	*
15709	* This routine is to be invoked when the lpfc module is loaded into the
15710	* kernel. The special kernel macro module_init() is used to indicate the
15711	* role of this routine to the kernel as lpfc module entry point.
15712	*
15713	* Return codes
15714	* 0 - successful
15715	* -ENOMEM - FC attach transport failed
15716	* all others - failed
15717	*/
15718	static int __init
15719	lpfc_init(void)
15720	{
15721	int error = 0;
15722
15723	pr_info(LPFC_MODULE_DESC "\n");
15724	pr_info(LPFC_COPYRIGHT "\n");
15725
15726	error = misc_register(misc: &lpfc_mgmt_dev);
15727	if (error)
15728	printk(KERN_ERR "Could not register lpfcmgmt device, "
15729	"misc_register returned with status %d", error);
15730
15731	error = -ENOMEM;
15732	lpfc_transport_functions.vport_create = lpfc_vport_create;
15733	lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15734	lpfc_transport_template =
15735	fc_attach_transport(&lpfc_transport_functions);
15736	if (lpfc_transport_template == NULL)
15737	goto unregister;
15738	lpfc_vport_transport_template =
15739	fc_attach_transport(&lpfc_vport_transport_functions);
15740	if (lpfc_vport_transport_template == NULL) {
15741	fc_release_transport(lpfc_transport_template);
15742	goto unregister;
15743	}
15744	lpfc_wqe_cmd_template();
15745	lpfc_nvmet_cmd_template();
15746
15747	/* Initialize in case vector mapping is needed */
15748	lpfc_present_cpu = num_present_cpus();
15749
15750	lpfc_pldv_detect = false;
15751
15752	error = cpuhp_setup_state_multi(state: CPUHP_AP_ONLINE_DYN,
15753	name: "lpfc/sli4:online",
15754	startup: lpfc_cpu_online, teardown: lpfc_cpu_offline);
15755	if (error < 0)
15756	goto cpuhp_failure;
15757	lpfc_cpuhp_state = error;
15758
15759	error = pci_register_driver(&lpfc_driver);
15760	if (error)
15761	goto unwind;
15762
15763	return error;
15764
15765	unwind:
15766	cpuhp_remove_multi_state(state: lpfc_cpuhp_state);
15767	cpuhp_failure:
15768	fc_release_transport(lpfc_transport_template);
15769	fc_release_transport(lpfc_vport_transport_template);
15770	unregister:
15771	misc_deregister(misc: &lpfc_mgmt_dev);
15772
15773	return error;
15774	}
15775
15776	void lpfc_dmp_dbg(struct lpfc_hba *phba)
15777	{
15778	unsigned int start_idx;
15779	unsigned int dbg_cnt;
15780	unsigned int temp_idx;
15781	int i;
15782	int j = 0;
15783	unsigned long rem_nsec;
15784
15785	if (atomic_cmpxchg(v: &phba->dbg_log_dmping, old: 0, new: 1) != 0)
15786	return;
15787
15788	start_idx = (unsigned int)atomic_read(v: &phba->dbg_log_idx) % DBG_LOG_SZ;
15789	dbg_cnt = (unsigned int)atomic_read(v: &phba->dbg_log_cnt);
15790	if (!dbg_cnt)
15791	goto out;
15792	temp_idx = start_idx;
15793	if (dbg_cnt >= DBG_LOG_SZ) {
15794	dbg_cnt = DBG_LOG_SZ;
15795	temp_idx -= 1;
15796	} else {
15797	if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15798	temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15799	} else {
15800	if (start_idx < dbg_cnt)
15801	start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15802	else
15803	start_idx -= dbg_cnt;
15804	}
15805	}
15806	dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15807	start_idx, temp_idx, dbg_cnt);
15808
15809	for (i = 0; i < dbg_cnt; i++) {
15810	if ((start_idx + i) < DBG_LOG_SZ)
15811	temp_idx = (start_idx + i) % DBG_LOG_SZ;
15812	else
15813	temp_idx = j++;
15814	rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15815	dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15816	temp_idx,
15817	(unsigned long)phba->dbg_log[temp_idx].t_ns,
15818	rem_nsec / 1000,
15819	phba->dbg_log[temp_idx].log);
15820	}
15821	out:
15822	atomic_set(v: &phba->dbg_log_cnt, i: 0);
15823	atomic_set(v: &phba->dbg_log_dmping, i: 0);
15824	}
15825
15826	__printf(2, 3)
15827	void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15828	{
15829	unsigned int idx;
15830	va_list args;
15831	int dbg_dmping = atomic_read(v: &phba->dbg_log_dmping);
15832	struct va_format vaf;
15833
15834
15835	va_start(args, fmt);
15836	if (unlikely(dbg_dmping)) {
15837	vaf.fmt = fmt;
15838	vaf.va = &args;
15839	dev_info(&phba->pcidev->dev, "%pV", &vaf);
15840	va_end(args);
15841	return;
15842	}
15843	idx = (unsigned int)atomic_fetch_add(i: 1, v: &phba->dbg_log_idx) %
15844	DBG_LOG_SZ;
15845
15846	atomic_inc(v: &phba->dbg_log_cnt);
15847
15848	vscnprintf(buf: phba->dbg_log[idx].log,
15849	size: sizeof(phba->dbg_log[idx].log), fmt, args);
15850	va_end(args);
15851
15852	phba->dbg_log[idx].t_ns = local_clock();
15853	}
15854
15855	/**
15856	* lpfc_exit - lpfc module removal routine
15857	*
15858	* This routine is invoked when the lpfc module is removed from the kernel.
15859	* The special kernel macro module_exit() is used to indicate the role of
15860	* this routine to the kernel as lpfc module exit point.
15861	*/
15862	static void __exit
15863	lpfc_exit(void)
15864	{
15865	misc_deregister(misc: &lpfc_mgmt_dev);
15866	pci_unregister_driver(dev: &lpfc_driver);
15867	cpuhp_remove_multi_state(state: lpfc_cpuhp_state);
15868	fc_release_transport(lpfc_transport_template);
15869	fc_release_transport(lpfc_vport_transport_template);
15870	idr_destroy(&lpfc_hba_index);
15871	}
15872
15873	module_init(lpfc_init);
15874	module_exit(lpfc_exit);
15875	MODULE_LICENSE("GPL");
15876	MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15877	MODULE_AUTHOR("Broadcom");
15878	MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
15879