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/ctype.h>
25	#include <linux/delay.h>
26	#include <linux/pci.h>
27	#include <linux/interrupt.h>
28	#include <linux/module.h>
29	#include <linux/aer.h>
30	#include <linux/gfp.h>
31	#include <linux/kernel.h>
32
33	#include <scsi/scsi.h>
34	#include <scsi/scsi_device.h>
35	#include <scsi/scsi_host.h>
36	#include <scsi/scsi_tcq.h>
37	#include <scsi/scsi_transport_fc.h>
38	#include <scsi/fc/fc_fs.h>
39
40	#include "lpfc_hw4.h"
41	#include "lpfc_hw.h"
42	#include "lpfc_sli.h"
43	#include "lpfc_sli4.h"
44	#include "lpfc_nl.h"
45	#include "lpfc_disc.h"
46	#include "lpfc.h"
47	#include "lpfc_scsi.h"
48	#include "lpfc_nvme.h"
49	#include "lpfc_logmsg.h"
50	#include "lpfc_version.h"
51	#include "lpfc_compat.h"
52	#include "lpfc_crtn.h"
53	#include "lpfc_vport.h"
54	#include "lpfc_attr.h"
55
56	#define LPFC_DEF_DEVLOSS_TMO 30
57	#define LPFC_MIN_DEVLOSS_TMO 1
58	#define LPFC_MAX_DEVLOSS_TMO 255
59
60	#define LPFC_MAX_INFO_TMP_LEN 100
61	#define LPFC_INFO_MORE_STR "\nCould be more info...\n"
62	/*
63	* Write key size should be multiple of 4. If write key is changed
64	* make sure that library write key is also changed.
65	*/
66	#define LPFC_REG_WRITE_KEY_SIZE 4
67	#define LPFC_REG_WRITE_KEY "EMLX"
68
69	const char *const trunk_errmsg[] = { /* map errcode */
70	"", /* There is no such error code at index 0*/
71	"link negotiated speed does not match existing"
72	" trunk - link was \"low\" speed",
73	"link negotiated speed does not match"
74	" existing trunk - link was \"middle\" speed",
75	"link negotiated speed does not match existing"
76	" trunk - link was \"high\" speed",
77	"Attached to non-trunking port - F_Port",
78	"Attached to non-trunking port - N_Port",
79	"FLOGI response timeout",
80	"non-FLOGI frame received",
81	"Invalid FLOGI response",
82	"Trunking initialization protocol",
83	"Trunk peer device mismatch",
84	};
85
86	/**
87	* lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
88	* @incr: integer to convert.
89	* @hdw: ascii string holding converted integer plus a string terminator.
90	*
91	* Description:
92	* JEDEC Joint Electron Device Engineering Council.
93	* Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
94	* character string. The string is then terminated with a NULL in byte 9.
95	* Hex 0-9 becomes ascii '0' to '9'.
96	* Hex a-f becomes ascii '=' to 'B' capital B.
97	*
98	* Notes:
99	* Coded for 32 bit integers only.
100	**/
101	static void
102	lpfc_jedec_to_ascii(int incr, char hdw[])
103	{
104	int i, j;
105	for (i = 0; i < 8; i++) {
106	j = (incr & 0xf);
107	if (j <= 9)
108	hdw[7 - i] = 0x30 + j;
109	else
110	hdw[7 - i] = 0x61 + j - 10;
111	incr = (incr >> 4);
112	}
113	hdw[8] = 0;
114	return;
115	}
116
117	static ssize_t
118	lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr,
119	char *buf)
120	{
121	struct Scsi_Host *shost = class_to_shost(dev);
122	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
123	struct lpfc_hba *phba = vport->phba;
124	struct lpfc_cgn_info *cp = NULL;
125	struct lpfc_cgn_stat *cgs;
126	int len = 0;
127	int cpu;
128	u64 rcv, total;
129	char tmp[LPFC_MAX_INFO_TMP_LEN] = {0};
130
131	if (phba->cgn_i)
132	cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
133
134	scnprintf(buf: tmp, size: sizeof(tmp),
135	fmt: "Congestion Mgmt Info: E2Eattr %d Ver %d "
136	"CMF %d cnt %d\n",
137	phba->sli4_hba.pc_sli4_params.mi_cap,
138	cp ? cp->cgn_info_version : 0,
139	phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt);
140
141	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
142	goto buffer_done;
143
144	if (!phba->sli4_hba.pc_sli4_params.cmf)
145	goto buffer_done;
146
147	switch (phba->cgn_init_reg_signal) {
148	case EDC_CG_SIG_WARN_ONLY:
149	scnprintf(buf: tmp, size: sizeof(tmp),
150	fmt: "Register: Init: Signal:WARN ");
151	break;
152	case EDC_CG_SIG_WARN_ALARM:
153	scnprintf(buf: tmp, size: sizeof(tmp),
154	fmt: "Register: Init: Signal:WARN|ALARM ");
155	break;
156	default:
157	scnprintf(buf: tmp, size: sizeof(tmp),
158	fmt: "Register: Init: Signal:NONE ");
159	break;
160	}
161	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
162	goto buffer_done;
163
164	switch (phba->cgn_init_reg_fpin) {
165	case LPFC_CGN_FPIN_WARN:
166	scnprintf(buf: tmp, size: sizeof(tmp),
167	fmt: "FPIN:WARN\n");
168	break;
169	case LPFC_CGN_FPIN_ALARM:
170	scnprintf(buf: tmp, size: sizeof(tmp),
171	fmt: "FPIN:ALARM\n");
172	break;
173	case LPFC_CGN_FPIN_BOTH:
174	scnprintf(buf: tmp, size: sizeof(tmp),
175	fmt: "FPIN:WARN|ALARM\n");
176	break;
177	default:
178	scnprintf(buf: tmp, size: sizeof(tmp),
179	fmt: "FPIN:NONE\n");
180	break;
181	}
182	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
183	goto buffer_done;
184
185	switch (phba->cgn_reg_signal) {
186	case EDC_CG_SIG_WARN_ONLY:
187	scnprintf(buf: tmp, size: sizeof(tmp),
188	fmt: " Current: Signal:WARN ");
189	break;
190	case EDC_CG_SIG_WARN_ALARM:
191	scnprintf(buf: tmp, size: sizeof(tmp),
192	fmt: " Current: Signal:WARN|ALARM ");
193	break;
194	default:
195	scnprintf(buf: tmp, size: sizeof(tmp),
196	fmt: " Current: Signal:NONE ");
197	break;
198	}
199	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
200	goto buffer_done;
201
202	switch (phba->cgn_reg_fpin) {
203	case LPFC_CGN_FPIN_WARN:
204	scnprintf(buf: tmp, size: sizeof(tmp),
205	fmt: "FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt);
206	break;
207	case LPFC_CGN_FPIN_ALARM:
208	scnprintf(buf: tmp, size: sizeof(tmp),
209	fmt: "FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt);
210	break;
211	case LPFC_CGN_FPIN_BOTH:
212	scnprintf(buf: tmp, size: sizeof(tmp),
213	fmt: "FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt);
214	break;
215	default:
216	scnprintf(buf: tmp, size: sizeof(tmp),
217	fmt: "FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt);
218	break;
219	}
220	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
221	goto buffer_done;
222
223	if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) {
224	switch (phba->cmf_active_mode) {
225	case LPFC_CFG_OFF:
226	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Active: Mode:Off\n");
227	break;
228	case LPFC_CFG_MANAGED:
229	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Active: Mode:Managed\n");
230	break;
231	case LPFC_CFG_MONITOR:
232	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Active: Mode:Monitor\n");
233	break;
234	default:
235	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Active: Mode:Unknown\n");
236	}
237	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
238	goto buffer_done;
239	}
240
241	switch (phba->cgn_p.cgn_param_mode) {
242	case LPFC_CFG_OFF:
243	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Config: Mode:Off ");
244	break;
245	case LPFC_CFG_MANAGED:
246	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Config: Mode:Managed ");
247	break;
248	case LPFC_CFG_MONITOR:
249	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Config: Mode:Monitor ");
250	break;
251	default:
252	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Config: Mode:Unknown ");
253	}
254	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
255	goto buffer_done;
256
257	total = 0;
258	rcv = 0;
259	for_each_present_cpu(cpu) {
260	cgs = per_cpu_ptr(phba->cmf_stat, cpu);
261	total += atomic64_read(v: &cgs->total_bytes);
262	rcv += atomic64_read(v: &cgs->rcv_bytes);
263	}
264
265	scnprintf(buf: tmp, size: sizeof(tmp),
266	fmt: "IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n",
267	atomic_read(v: &phba->cmf_busy),
268	phba->cmf_active_info, rcv, total);
269	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
270	goto buffer_done;
271
272	scnprintf(buf: tmp, size: sizeof(tmp),
273	fmt: "Port_speed:%d Link_byte_cnt:%ld "
274	"Max_byte_per_interval:%ld\n",
275	lpfc_sli_port_speed_get(phba),
276	(unsigned long)phba->cmf_link_byte_count,
277	(unsigned long)phba->cmf_max_bytes_per_interval);
278	strlcat(p: buf, q: tmp, PAGE_SIZE);
279
280	buffer_done:
281	len = strnlen(p: buf, PAGE_SIZE);
282
283	if (unlikely(len >= (PAGE_SIZE - 1))) {
284	lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
285	"6312 Catching potential buffer "
286	"overflow > PAGE_SIZE = %lu bytes\n",
287	PAGE_SIZE);
288	strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
289	LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1);
290	}
291	return len;
292	}
293
294	/**
295	* lpfc_drvr_version_show - Return the Emulex driver string with version number
296	* @dev: class unused variable.
297	* @attr: device attribute, not used.
298	* @buf: on return contains the module description text.
299	*
300	* Returns: size of formatted string.
301	**/
302	static ssize_t
303	lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
304	char *buf)
305	{
306	return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
307	}
308
309	/**
310	* lpfc_enable_fip_show - Return the fip mode of the HBA
311	* @dev: class unused variable.
312	* @attr: device attribute, not used.
313	* @buf: on return contains the module description text.
314	*
315	* Returns: size of formatted string.
316	**/
317	static ssize_t
318	lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
319	char *buf)
320	{
321	struct Scsi_Host *shost = class_to_shost(dev);
322	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
323	struct lpfc_hba *phba = vport->phba;
324
325	if (phba->hba_flag & HBA_FIP_SUPPORT)
326	return scnprintf(buf, PAGE_SIZE, fmt: "1\n");
327	else
328	return scnprintf(buf, PAGE_SIZE, fmt: "0\n");
329	}
330
331	static ssize_t
332	lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
333	char *buf)
334	{
335	struct Scsi_Host *shost = class_to_shost(dev);
336	struct lpfc_vport *vport = shost_priv(shost);
337	struct lpfc_hba *phba = vport->phba;
338	struct lpfc_nvmet_tgtport *tgtp;
339	struct nvme_fc_local_port *localport;
340	struct lpfc_nvme_lport *lport;
341	struct lpfc_nvme_rport *rport;
342	struct lpfc_nodelist *ndlp;
343	struct nvme_fc_remote_port *nrport;
344	struct lpfc_fc4_ctrl_stat *cstat;
345	uint64_t data1, data2, data3;
346	uint64_t totin, totout, tot;
347	unsigned long iflags;
348	char *statep;
349	int i;
350	int len = 0;
351	char tmp[LPFC_MAX_INFO_TMP_LEN] = {0};
352
353	if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
354	len = scnprintf(buf, PAGE_SIZE, fmt: "NVME Disabled\n");
355	return len;
356	}
357	if (phba->nvmet_support) {
358	if (!phba->targetport) {
359	len = scnprintf(buf, PAGE_SIZE,
360	fmt: "NVME Target: x%llx is not allocated\n",
361	wwn_to_u64(wwn: vport->fc_portname.u.wwn));
362	return len;
363	}
364	/* Port state is only one of two values for now. */
365	if (phba->targetport->port_id)
366	statep = "REGISTERED";
367	else
368	statep = "INIT";
369	scnprintf(buf: tmp, size: sizeof(tmp),
370	fmt: "NVME Target Enabled State %s\n",
371	statep);
372	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
373	goto buffer_done;
374
375	scnprintf(buf: tmp, size: sizeof(tmp),
376	fmt: "%s%d WWPN x%llx WWNN x%llx DID x%06x\n",
377	"NVME Target: lpfc",
378	phba->brd_no,
379	wwn_to_u64(wwn: vport->fc_portname.u.wwn),
380	wwn_to_u64(wwn: vport->fc_nodename.u.wwn),
381	phba->targetport->port_id);
382	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
383	goto buffer_done;
384
385	if (strlcat(p: buf, q: "\nNVME Target: Statistics\n", PAGE_SIZE)
386	>= PAGE_SIZE)
387	goto buffer_done;
388
389	tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
390	scnprintf(buf: tmp, size: sizeof(tmp),
391	fmt: "LS: Rcv %08x Drop %08x Abort %08x\n",
392	atomic_read(v: &tgtp->rcv_ls_req_in),
393	atomic_read(v: &tgtp->rcv_ls_req_drop),
394	atomic_read(v: &tgtp->xmt_ls_abort));
395	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
396	goto buffer_done;
397
398	if (atomic_read(v: &tgtp->rcv_ls_req_in) !=
399	atomic_read(v: &tgtp->rcv_ls_req_out)) {
400	scnprintf(buf: tmp, size: sizeof(tmp),
401	fmt: "Rcv LS: in %08x != out %08x\n",
402	atomic_read(v: &tgtp->rcv_ls_req_in),
403	atomic_read(v: &tgtp->rcv_ls_req_out));
404	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
405	goto buffer_done;
406	}
407
408	scnprintf(buf: tmp, size: sizeof(tmp),
409	fmt: "LS: Xmt %08x Drop %08x Cmpl %08x\n",
410	atomic_read(v: &tgtp->xmt_ls_rsp),
411	atomic_read(v: &tgtp->xmt_ls_drop),
412	atomic_read(v: &tgtp->xmt_ls_rsp_cmpl));
413	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
414	goto buffer_done;
415
416	scnprintf(buf: tmp, size: sizeof(tmp),
417	fmt: "LS: RSP Abort %08x xb %08x Err %08x\n",
418	atomic_read(v: &tgtp->xmt_ls_rsp_aborted),
419	atomic_read(v: &tgtp->xmt_ls_rsp_xb_set),
420	atomic_read(v: &tgtp->xmt_ls_rsp_error));
421	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
422	goto buffer_done;
423
424	scnprintf(buf: tmp, size: sizeof(tmp),
425	fmt: "FCP: Rcv %08x Defer %08x Release %08x "
426	"Drop %08x\n",
427	atomic_read(v: &tgtp->rcv_fcp_cmd_in),
428	atomic_read(v: &tgtp->rcv_fcp_cmd_defer),
429	atomic_read(v: &tgtp->xmt_fcp_release),
430	atomic_read(v: &tgtp->rcv_fcp_cmd_drop));
431	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
432	goto buffer_done;
433
434	if (atomic_read(v: &tgtp->rcv_fcp_cmd_in) !=
435	atomic_read(v: &tgtp->rcv_fcp_cmd_out)) {
436	scnprintf(buf: tmp, size: sizeof(tmp),
437	fmt: "Rcv FCP: in %08x != out %08x\n",
438	atomic_read(v: &tgtp->rcv_fcp_cmd_in),
439	atomic_read(v: &tgtp->rcv_fcp_cmd_out));
440	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
441	goto buffer_done;
442	}
443
444	scnprintf(buf: tmp, size: sizeof(tmp),
445	fmt: "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x "
446	"drop %08x\n",
447	atomic_read(v: &tgtp->xmt_fcp_read),
448	atomic_read(v: &tgtp->xmt_fcp_read_rsp),
449	atomic_read(v: &tgtp->xmt_fcp_write),
450	atomic_read(v: &tgtp->xmt_fcp_rsp),
451	atomic_read(v: &tgtp->xmt_fcp_drop));
452	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
453	goto buffer_done;
454
455	scnprintf(buf: tmp, size: sizeof(tmp),
456	fmt: "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
457	atomic_read(v: &tgtp->xmt_fcp_rsp_cmpl),
458	atomic_read(v: &tgtp->xmt_fcp_rsp_error),
459	atomic_read(v: &tgtp->xmt_fcp_rsp_drop));
460	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
461	goto buffer_done;
462
463	scnprintf(buf: tmp, size: sizeof(tmp),
464	fmt: "FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
465	atomic_read(v: &tgtp->xmt_fcp_rsp_aborted),
466	atomic_read(v: &tgtp->xmt_fcp_rsp_xb_set),
467	atomic_read(v: &tgtp->xmt_fcp_xri_abort_cqe));
468	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
469	goto buffer_done;
470
471	scnprintf(buf: tmp, size: sizeof(tmp),
472	fmt: "ABORT: Xmt %08x Cmpl %08x\n",
473	atomic_read(v: &tgtp->xmt_fcp_abort),
474	atomic_read(v: &tgtp->xmt_fcp_abort_cmpl));
475	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
476	goto buffer_done;
477
478	scnprintf(buf: tmp, size: sizeof(tmp),
479	fmt: "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n",
480	atomic_read(v: &tgtp->xmt_abort_sol),
481	atomic_read(v: &tgtp->xmt_abort_unsol),
482	atomic_read(v: &tgtp->xmt_abort_rsp),
483	atomic_read(v: &tgtp->xmt_abort_rsp_error));
484	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
485	goto buffer_done;
486
487	scnprintf(buf: tmp, size: sizeof(tmp),
488	fmt: "DELAY: ctx %08x fod %08x wqfull %08x\n",
489	atomic_read(v: &tgtp->defer_ctx),
490	atomic_read(v: &tgtp->defer_fod),
491	atomic_read(v: &tgtp->defer_wqfull));
492	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
493	goto buffer_done;
494
495	/* Calculate outstanding IOs */
496	tot = atomic_read(v: &tgtp->rcv_fcp_cmd_drop);
497	tot += atomic_read(v: &tgtp->xmt_fcp_release);
498	tot = atomic_read(v: &tgtp->rcv_fcp_cmd_in) - tot;
499
500	scnprintf(buf: tmp, size: sizeof(tmp),
501	fmt: "IO_CTX: %08x WAIT: cur %08x tot %08x\n"
502	"CTX Outstanding %08llx\n\n",
503	phba->sli4_hba.nvmet_xri_cnt,
504	phba->sli4_hba.nvmet_io_wait_cnt,
505	phba->sli4_hba.nvmet_io_wait_total,
506	tot);
507	strlcat(p: buf, q: tmp, PAGE_SIZE);
508	goto buffer_done;
509	}
510
511	localport = vport->localport;
512	if (!localport) {
513	len = scnprintf(buf, PAGE_SIZE,
514	fmt: "NVME Initiator x%llx is not allocated\n",
515	wwn_to_u64(wwn: vport->fc_portname.u.wwn));
516	return len;
517	}
518	lport = (struct lpfc_nvme_lport *)localport->private;
519	if (strlcat(p: buf, q: "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE)
520	goto buffer_done;
521
522	scnprintf(buf: tmp, size: sizeof(tmp),
523	fmt: "XRI Dist lpfc%d Total %d IO %d ELS %d\n",
524	phba->brd_no,
525	phba->sli4_hba.max_cfg_param.max_xri,
526	phba->sli4_hba.io_xri_max,
527	lpfc_sli4_get_els_iocb_cnt(phba));
528	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
529	goto buffer_done;
530
531	/* Port state is only one of two values for now. */
532	if (localport->port_id)
533	statep = "ONLINE";
534	else
535	statep = "UNKNOWN ";
536
537	scnprintf(buf: tmp, size: sizeof(tmp),
538	fmt: "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n",
539	"NVME LPORT lpfc",
540	phba->brd_no,
541	wwn_to_u64(wwn: vport->fc_portname.u.wwn),
542	wwn_to_u64(wwn: vport->fc_nodename.u.wwn),
543	localport->port_id, statep);
544	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
545	goto buffer_done;
546
547	spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);
548
549	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
550	nrport = NULL;
551	spin_lock(lock: &ndlp->lock);
552	rport = lpfc_ndlp_get_nrport(ndlp);
553	if (rport)
554	nrport = rport->remoteport;
555	spin_unlock(lock: &ndlp->lock);
556	if (!nrport)
557	continue;
558
559	/* Port state is only one of two values for now. */
560	switch (nrport->port_state) {
561	case FC_OBJSTATE_ONLINE:
562	statep = "ONLINE";
563	break;
564	case FC_OBJSTATE_UNKNOWN:
565	statep = "UNKNOWN ";
566	break;
567	default:
568	statep = "UNSUPPORTED";
569	break;
570	}
571
572	/* Tab in to show lport ownership. */
573	if (strlcat(p: buf, q: "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE)
574	goto unlock_buf_done;
575	if (phba->brd_no >= 10) {
576	if (strlcat(p: buf, q: " ", PAGE_SIZE) >= PAGE_SIZE)
577	goto unlock_buf_done;
578	}
579
580	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "WWPN x%llx ",
581	nrport->port_name);
582	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
583	goto unlock_buf_done;
584
585	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "WWNN x%llx ",
586	nrport->node_name);
587	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
588	goto unlock_buf_done;
589
590	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "DID x%06x ",
591	nrport->port_id);
592	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
593	goto unlock_buf_done;
594
595	/* An NVME rport can have multiple roles. */
596	if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) {
597	if (strlcat(p: buf, q: "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE)
598	goto unlock_buf_done;
599	}
600	if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) {
601	if (strlcat(p: buf, q: "TARGET ", PAGE_SIZE) >= PAGE_SIZE)
602	goto unlock_buf_done;
603	}
604	if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) {
605	if (strlcat(p: buf, q: "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE)
606	goto unlock_buf_done;
607	}
608	if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
609	FC_PORT_ROLE_NVME_TARGET |
610	FC_PORT_ROLE_NVME_DISCOVERY)) {
611	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "UNKNOWN ROLE x%x",
612	nrport->port_role);
613	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
614	goto unlock_buf_done;
615	}
616
617	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "%s\n", statep);
618	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
619	goto unlock_buf_done;
620	}
621	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock, flags: iflags);
622
623	if (!lport)
624	goto buffer_done;
625
626	if (strlcat(p: buf, q: "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE)
627	goto buffer_done;
628
629	scnprintf(buf: tmp, size: sizeof(tmp),
630	fmt: "LS: Xmt %010x Cmpl %010x Abort %08x\n",
631	atomic_read(v: &lport->fc4NvmeLsRequests),
632	atomic_read(v: &lport->fc4NvmeLsCmpls),
633	atomic_read(v: &lport->xmt_ls_abort));
634	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
635	goto buffer_done;
636
637	scnprintf(buf: tmp, size: sizeof(tmp),
638	fmt: "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n",
639	atomic_read(v: &lport->xmt_ls_err),
640	atomic_read(v: &lport->cmpl_ls_xb),
641	atomic_read(v: &lport->cmpl_ls_err));
642	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
643	goto buffer_done;
644
645	totin = 0;
646	totout = 0;
647	for (i = 0; i < phba->cfg_hdw_queue; i++) {
648	cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
649	tot = cstat->io_cmpls;
650	totin += tot;
651	data1 = cstat->input_requests;
652	data2 = cstat->output_requests;
653	data3 = cstat->control_requests;
654	totout += (data1 + data2 + data3);
655	}
656	scnprintf(buf: tmp, size: sizeof(tmp),
657	fmt: "Total FCP Cmpl %016llx Issue %016llx "
658	"OutIO %016llx\n",
659	totin, totout, totout - totin);
660	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
661	goto buffer_done;
662
663	scnprintf(buf: tmp, size: sizeof(tmp),
664	fmt: "\tabort %08x noxri %08x nondlp %08x qdepth %08x "
665	"wqerr %08x err %08x\n",
666	atomic_read(v: &lport->xmt_fcp_abort),
667	atomic_read(v: &lport->xmt_fcp_noxri),
668	atomic_read(v: &lport->xmt_fcp_bad_ndlp),
669	atomic_read(v: &lport->xmt_fcp_qdepth),
670	atomic_read(v: &lport->xmt_fcp_wqerr),
671	atomic_read(v: &lport->xmt_fcp_err));
672	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
673	goto buffer_done;
674
675	scnprintf(buf: tmp, size: sizeof(tmp),
676	fmt: "FCP CMPL: xb %08x Err %08x\n",
677	atomic_read(v: &lport->cmpl_fcp_xb),
678	atomic_read(v: &lport->cmpl_fcp_err));
679	strlcat(p: buf, q: tmp, PAGE_SIZE);
680
681	/* host_lock is already unlocked. */
682	goto buffer_done;
683
684	unlock_buf_done:
685	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock, flags: iflags);
686
687	buffer_done:
688	len = strnlen(p: buf, PAGE_SIZE);
689
690	if (unlikely(len >= (PAGE_SIZE - 1))) {
691	lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
692	"6314 Catching potential buffer "
693	"overflow > PAGE_SIZE = %lu bytes\n",
694	PAGE_SIZE);
695	strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
696	LPFC_INFO_MORE_STR,
697	sizeof(LPFC_INFO_MORE_STR) + 1);
698	}
699
700	return len;
701	}
702
703	static ssize_t
704	lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr,
705	char *buf)
706	{
707	struct Scsi_Host *shost = class_to_shost(dev);
708	struct lpfc_vport *vport = shost_priv(shost);
709	struct lpfc_hba *phba = vport->phba;
710	int len;
711	struct lpfc_fc4_ctrl_stat *cstat;
712	u64 data1, data2, data3;
713	u64 tot, totin, totout;
714	int i;
715	char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
716
717	if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
718	(phba->sli_rev != LPFC_SLI_REV4))
719	return 0;
720
721	scnprintf(buf, PAGE_SIZE, fmt: "SCSI HDWQ Statistics\n");
722
723	totin = 0;
724	totout = 0;
725	for (i = 0; i < phba->cfg_hdw_queue; i++) {
726	cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
727	tot = cstat->io_cmpls;
728	totin += tot;
729	data1 = cstat->input_requests;
730	data2 = cstat->output_requests;
731	data3 = cstat->control_requests;
732	totout += (data1 + data2 + data3);
733
734	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "HDWQ (%d): Rd %016llx Wr %016llx "
735	"IO %016llx ", i, data1, data2, data3);
736	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
737	goto buffer_done;
738
739	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Cmpl %016llx OutIO %016llx\n",
740	tot, ((data1 + data2 + data3) - tot));
741	if (strlcat(p: buf, q: tmp, PAGE_SIZE) >= PAGE_SIZE)
742	goto buffer_done;
743	}
744	scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Total FCP Cmpl %016llx Issue %016llx "
745	"OutIO %016llx\n", totin, totout, totout - totin);
746	strlcat(p: buf, q: tmp, PAGE_SIZE);
747
748	buffer_done:
749	len = strnlen(p: buf, PAGE_SIZE);
750
751	return len;
752	}
753
754	static ssize_t
755	lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
756	char *buf)
757	{
758	struct Scsi_Host *shost = class_to_shost(dev);
759	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
760	struct lpfc_hba *phba = vport->phba;
761
762	if (phba->cfg_enable_bg) {
763	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
764	return scnprintf(buf, PAGE_SIZE,
765	fmt: "BlockGuard Enabled\n");
766	else
767	return scnprintf(buf, PAGE_SIZE,
768	fmt: "BlockGuard Not Supported\n");
769	} else
770	return scnprintf(buf, PAGE_SIZE,
771	fmt: "BlockGuard Disabled\n");
772	}
773
774	static ssize_t
775	lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
776	char *buf)
777	{
778	struct Scsi_Host *shost = class_to_shost(dev);
779	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
780	struct lpfc_hba *phba = vport->phba;
781
782	return scnprintf(buf, PAGE_SIZE, fmt: "%llu\n",
783	(unsigned long long)phba->bg_guard_err_cnt);
784	}
785
786	static ssize_t
787	lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
788	char *buf)
789	{
790	struct Scsi_Host *shost = class_to_shost(dev);
791	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
792	struct lpfc_hba *phba = vport->phba;
793
794	return scnprintf(buf, PAGE_SIZE, fmt: "%llu\n",
795	(unsigned long long)phba->bg_apptag_err_cnt);
796	}
797
798	static ssize_t
799	lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
800	char *buf)
801	{
802	struct Scsi_Host *shost = class_to_shost(dev);
803	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
804	struct lpfc_hba *phba = vport->phba;
805
806	return scnprintf(buf, PAGE_SIZE, fmt: "%llu\n",
807	(unsigned long long)phba->bg_reftag_err_cnt);
808	}
809
810	/**
811	* lpfc_info_show - Return some pci info about the host in ascii
812	* @dev: class converted to a Scsi_host structure.
813	* @attr: device attribute, not used.
814	* @buf: on return contains the formatted text from lpfc_info().
815	*
816	* Returns: size of formatted string.
817	**/
818	static ssize_t
819	lpfc_info_show(struct device *dev, struct device_attribute *attr,
820	char *buf)
821	{
822	struct Scsi_Host *host = class_to_shost(dev);
823
824	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", lpfc_info(host));
825	}
826
827	/**
828	* lpfc_serialnum_show - Return the hba serial number in ascii
829	* @dev: class converted to a Scsi_host structure.
830	* @attr: device attribute, not used.
831	* @buf: on return contains the formatted text serial number.
832	*
833	* Returns: size of formatted string.
834	**/
835	static ssize_t
836	lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
837	char *buf)
838	{
839	struct Scsi_Host *shost = class_to_shost(dev);
840	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
841	struct lpfc_hba *phba = vport->phba;
842
843	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", phba->SerialNumber);
844	}
845
846	/**
847	* lpfc_temp_sensor_show - Return the temperature sensor level
848	* @dev: class converted to a Scsi_host structure.
849	* @attr: device attribute, not used.
850	* @buf: on return contains the formatted support level.
851	*
852	* Description:
853	* Returns a number indicating the temperature sensor level currently
854	* supported, zero or one in ascii.
855	*
856	* Returns: size of formatted string.
857	**/
858	static ssize_t
859	lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
860	char *buf)
861	{
862	struct Scsi_Host *shost = class_to_shost(dev);
863	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
864	struct lpfc_hba *phba = vport->phba;
865	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", phba->temp_sensor_support);
866	}
867
868	/**
869	* lpfc_modeldesc_show - Return the model description of the hba
870	* @dev: class converted to a Scsi_host structure.
871	* @attr: device attribute, not used.
872	* @buf: on return contains the scsi vpd model description.
873	*
874	* Returns: size of formatted string.
875	**/
876	static ssize_t
877	lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
878	char *buf)
879	{
880	struct Scsi_Host *shost = class_to_shost(dev);
881	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
882	struct lpfc_hba *phba = vport->phba;
883
884	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", phba->ModelDesc);
885	}
886
887	/**
888	* lpfc_modelname_show - Return the model name of the hba
889	* @dev: class converted to a Scsi_host structure.
890	* @attr: device attribute, not used.
891	* @buf: on return contains the scsi vpd model name.
892	*
893	* Returns: size of formatted string.
894	**/
895	static ssize_t
896	lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
897	char *buf)
898	{
899	struct Scsi_Host *shost = class_to_shost(dev);
900	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
901	struct lpfc_hba *phba = vport->phba;
902
903	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", phba->ModelName);
904	}
905
906	/**
907	* lpfc_programtype_show - Return the program type of the hba
908	* @dev: class converted to a Scsi_host structure.
909	* @attr: device attribute, not used.
910	* @buf: on return contains the scsi vpd program type.
911	*
912	* Returns: size of formatted string.
913	**/
914	static ssize_t
915	lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
916	char *buf)
917	{
918	struct Scsi_Host *shost = class_to_shost(dev);
919	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
920	struct lpfc_hba *phba = vport->phba;
921
922	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", phba->ProgramType);
923	}
924
925	/**
926	* lpfc_vportnum_show - Return the port number in ascii of the hba
927	* @dev: class converted to a Scsi_host structure.
928	* @attr: device attribute, not used.
929	* @buf: on return contains scsi vpd program type.
930	*
931	* Returns: size of formatted string.
932	**/
933	static ssize_t
934	lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
935	char *buf)
936	{
937	struct Scsi_Host *shost = class_to_shost(dev);
938	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
939	struct lpfc_hba *phba = vport->phba;
940
941	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", phba->Port);
942	}
943
944	/**
945	* lpfc_fwrev_show - Return the firmware rev running in the hba
946	* @dev: class converted to a Scsi_host structure.
947	* @attr: device attribute, not used.
948	* @buf: on return contains the scsi vpd program type.
949	*
950	* Returns: size of formatted string.
951	**/
952	static ssize_t
953	lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
954	char *buf)
955	{
956	struct Scsi_Host *shost = class_to_shost(dev);
957	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
958	struct lpfc_hba *phba = vport->phba;
959	uint32_t if_type;
960	uint8_t sli_family;
961	char fwrev[FW_REV_STR_SIZE];
962	int len;
963
964	lpfc_decode_firmware_rev(phba, fwrev, 1);
965	if_type = phba->sli4_hba.pc_sli4_params.if_type;
966	sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
967
968	if (phba->sli_rev < LPFC_SLI_REV4)
969	len = scnprintf(buf, PAGE_SIZE, fmt: "%s, sli-%d\n",
970	fwrev, phba->sli_rev);
971	else
972	len = scnprintf(buf, PAGE_SIZE, fmt: "%s, sli-%d:%d:%x\n",
973	fwrev, phba->sli_rev, if_type, sli_family);
974
975	return len;
976	}
977
978	/**
979	* lpfc_hdw_show - Return the jedec information about the hba
980	* @dev: class converted to a Scsi_host structure.
981	* @attr: device attribute, not used.
982	* @buf: on return contains the scsi vpd program type.
983	*
984	* Returns: size of formatted string.
985	**/
986	static ssize_t
987	lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
988	{
989	char hdw[9];
990	struct Scsi_Host *shost = class_to_shost(dev);
991	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
992	struct lpfc_hba *phba = vport->phba;
993	lpfc_vpd_t *vp = &phba->vpd;
994
995	lpfc_jedec_to_ascii(incr: vp->rev.biuRev, hdw);
996	return scnprintf(buf, PAGE_SIZE, fmt: "%s %08x %08x\n", hdw,
997	vp->rev.smRev, vp->rev.smFwRev);
998	}
999
1000	/**
1001	* lpfc_option_rom_version_show - Return the adapter ROM FCode version
1002	* @dev: class converted to a Scsi_host structure.
1003	* @attr: device attribute, not used.
1004	* @buf: on return contains the ROM and FCode ascii strings.
1005	*
1006	* Returns: size of formatted string.
1007	**/
1008	static ssize_t
1009	lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
1010	char *buf)
1011	{
1012	struct Scsi_Host *shost = class_to_shost(dev);
1013	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1014	struct lpfc_hba *phba = vport->phba;
1015	char fwrev[FW_REV_STR_SIZE];
1016
1017	if (phba->sli_rev < LPFC_SLI_REV4)
1018	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n",
1019	phba->OptionROMVersion);
1020
1021	lpfc_decode_firmware_rev(phba, fwrev, 1);
1022	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", fwrev);
1023	}
1024
1025	/**
1026	* lpfc_link_state_show - Return the link state of the port
1027	* @dev: class converted to a Scsi_host structure.
1028	* @attr: device attribute, not used.
1029	* @buf: on return contains text describing the state of the link.
1030	*
1031	* Notes:
1032	* The switch statement has no default so zero will be returned.
1033	*
1034	* Returns: size of formatted string.
1035	**/
1036	static ssize_t
1037	lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
1038	char *buf)
1039	{
1040	struct Scsi_Host *shost = class_to_shost(dev);
1041	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1042	struct lpfc_hba *phba = vport->phba;
1043	int len = 0;
1044
1045	switch (phba->link_state) {
1046	case LPFC_LINK_UNKNOWN:
1047	case LPFC_WARM_START:
1048	case LPFC_INIT_START:
1049	case LPFC_INIT_MBX_CMDS:
1050	case LPFC_LINK_DOWN:
1051	case LPFC_HBA_ERROR:
1052	if (phba->hba_flag & LINK_DISABLED)
1053	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
1054	fmt: "Link Down - User disabled\n");
1055	else
1056	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
1057	fmt: "Link Down\n");
1058	break;
1059	case LPFC_LINK_UP:
1060	case LPFC_CLEAR_LA:
1061	case LPFC_HBA_READY:
1062	len += scnprintf(buf: buf + len, PAGE_SIZE-len, fmt: "Link Up - ");
1063
1064	switch (vport->port_state) {
1065	case LPFC_LOCAL_CFG_LINK:
1066	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
1067	fmt: "Configuring Link\n");
1068	break;
1069	case LPFC_FDISC:
1070	case LPFC_FLOGI:
1071	case LPFC_FABRIC_CFG_LINK:
1072	case LPFC_NS_REG:
1073	case LPFC_NS_QRY:
1074	case LPFC_BUILD_DISC_LIST:
1075	case LPFC_DISC_AUTH:
1076	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1077	fmt: "Discovery\n");
1078	break;
1079	case LPFC_VPORT_READY:
1080	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1081	fmt: "Ready\n");
1082	break;
1083
1084	case LPFC_VPORT_FAILED:
1085	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1086	fmt: "Failed\n");
1087	break;
1088
1089	case LPFC_VPORT_UNKNOWN:
1090	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1091	fmt: "Unknown\n");
1092	break;
1093	}
1094	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
1095	if (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))
1096	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
1097	fmt: " Public Loop\n");
1098	else
1099	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
1100	fmt: " Private Loop\n");
1101	} else {
1102	if (test_bit(FC_FABRIC, &vport->fc_flag)) {
1103	if (phba->sli_rev == LPFC_SLI_REV4 &&
1104	vport->port_type == LPFC_PHYSICAL_PORT &&
1105	phba->sli4_hba.fawwpn_flag &
1106	LPFC_FAWWPN_FABRIC)
1107	len += scnprintf(buf: buf + len,
1108	PAGE_SIZE - len,
1109	fmt: " Fabric FA-PWWN\n");
1110	else
1111	len += scnprintf(buf: buf + len,
1112	PAGE_SIZE - len,
1113	fmt: " Fabric\n");
1114	} else {
1115	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
1116	fmt: " Point-2-Point\n");
1117	}
1118	}
1119	}
1120
1121	if ((phba->sli_rev == LPFC_SLI_REV4) &&
1122	((bf_get(lpfc_sli_intf_if_type,
1123	&phba->sli4_hba.sli_intf) ==
1124	LPFC_SLI_INTF_IF_TYPE_6))) {
1125	struct lpfc_trunk_link link = phba->trunk_link;
1126
1127	if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
1128	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1129	fmt: "Trunk port 0: Link %s %s\n",
1130	(link.link0.state == LPFC_LINK_UP) ?
1131	"Up" : "Down. ",
1132	trunk_errmsg[link.link0.fault]);
1133
1134	if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
1135	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1136	fmt: "Trunk port 1: Link %s %s\n",
1137	(link.link1.state == LPFC_LINK_UP) ?
1138	"Up" : "Down. ",
1139	trunk_errmsg[link.link1.fault]);
1140
1141	if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
1142	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1143	fmt: "Trunk port 2: Link %s %s\n",
1144	(link.link2.state == LPFC_LINK_UP) ?
1145	"Up" : "Down. ",
1146	trunk_errmsg[link.link2.fault]);
1147
1148	if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
1149	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1150	fmt: "Trunk port 3: Link %s %s\n",
1151	(link.link3.state == LPFC_LINK_UP) ?
1152	"Up" : "Down. ",
1153	trunk_errmsg[link.link3.fault]);
1154
1155	}
1156
1157	return len;
1158	}
1159
1160	/**
1161	* lpfc_sli4_protocol_show - Return the fip mode of the HBA
1162	* @dev: class unused variable.
1163	* @attr: device attribute, not used.
1164	* @buf: on return contains the module description text.
1165	*
1166	* Returns: size of formatted string.
1167	**/
1168	static ssize_t
1169	lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
1170	char *buf)
1171	{
1172	struct Scsi_Host *shost = class_to_shost(dev);
1173	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1174	struct lpfc_hba *phba = vport->phba;
1175
1176	if (phba->sli_rev < LPFC_SLI_REV4)
1177	return scnprintf(buf, PAGE_SIZE, fmt: "fc\n");
1178
1179	if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
1180	if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
1181	return scnprintf(buf, PAGE_SIZE, fmt: "fcoe\n");
1182	if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
1183	return scnprintf(buf, PAGE_SIZE, fmt: "fc\n");
1184	}
1185	return scnprintf(buf, PAGE_SIZE, fmt: "unknown\n");
1186	}
1187
1188	/**
1189	* lpfc_oas_supported_show - Return whether or not Optimized Access Storage
1190	* (OAS) is supported.
1191	* @dev: class unused variable.
1192	* @attr: device attribute, not used.
1193	* @buf: on return contains the module description text.
1194	*
1195	* Returns: size of formatted string.
1196	**/
1197	static ssize_t
1198	lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
1199	char *buf)
1200	{
1201	struct Scsi_Host *shost = class_to_shost(dev);
1202	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
1203	struct lpfc_hba *phba = vport->phba;
1204
1205	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
1206	phba->sli4_hba.pc_sli4_params.oas_supported);
1207	}
1208
1209	/**
1210	* lpfc_link_state_store - Transition the link_state on an HBA port
1211	* @dev: class device that is converted into a Scsi_host.
1212	* @attr: device attribute, not used.
1213	* @buf: one or more lpfc_polling_flags values.
1214	* @count: not used.
1215	*
1216	* Returns:
1217	* -EINVAL if the buffer is not "up" or "down"
1218	* return from link state change function if non-zero
1219	* length of the buf on success
1220	**/
1221	static ssize_t
1222	lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
1223	const char *buf, size_t count)
1224	{
1225	struct Scsi_Host *shost = class_to_shost(dev);
1226	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1227	struct lpfc_hba *phba = vport->phba;
1228
1229	int status = -EINVAL;
1230
1231	if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
1232	(phba->link_state == LPFC_LINK_DOWN))
1233	status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
1234	else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
1235	(phba->link_state >= LPFC_LINK_UP))
1236	status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
1237
1238	if (status == 0)
1239	return strlen(buf);
1240	else
1241	return status;
1242	}
1243
1244	/**
1245	* lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
1246	* @dev: class device that is converted into a Scsi_host.
1247	* @attr: device attribute, not used.
1248	* @buf: on return contains the sum of fc mapped and unmapped.
1249	*
1250	* Description:
1251	* Returns the ascii text number of the sum of the fc mapped and unmapped
1252	* vport counts.
1253	*
1254	* Returns: size of formatted string.
1255	**/
1256	static ssize_t
1257	lpfc_num_discovered_ports_show(struct device *dev,
1258	struct device_attribute *attr, char *buf)
1259	{
1260	struct Scsi_Host *shost = class_to_shost(dev);
1261	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1262
1263	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
1264	atomic_read(v: &vport->fc_map_cnt) +
1265	atomic_read(v: &vport->fc_unmap_cnt));
1266	}
1267
1268	/**
1269	* lpfc_issue_lip - Misnomer, name carried over from long ago
1270	* @shost: Scsi_Host pointer.
1271	*
1272	* Description:
1273	* Bring the link down gracefully then re-init the link. The firmware will
1274	* re-init the fiber channel interface as required. Does not issue a LIP.
1275	*
1276	* Returns:
1277	* -EPERM port offline or management commands are being blocked
1278	* -ENOMEM cannot allocate memory for the mailbox command
1279	* -EIO error sending the mailbox command
1280	* zero for success
1281	**/
1282	static int
1283	lpfc_issue_lip(struct Scsi_Host *shost)
1284	{
1285	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1286	struct lpfc_hba *phba = vport->phba;
1287	LPFC_MBOXQ_t *pmboxq;
1288	int mbxstatus = MBXERR_ERROR;
1289
1290	/*
1291	* If the link is offline, disabled or BLOCK_MGMT_IO
1292	* it doesn't make any sense to allow issue_lip
1293	*/
1294	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) ||
1295	(phba->hba_flag & LINK_DISABLED) ||
1296	(phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
1297	return -EPERM;
1298
1299	pmboxq = mempool_alloc(pool: phba->mbox_mem_pool,GFP_KERNEL);
1300
1301	if (!pmboxq)
1302	return -ENOMEM;
1303
1304	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1305	pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
1306	pmboxq->u.mb.mbxOwner = OWN_HOST;
1307
1308	if (test_bit(FC_PT2PT, &vport->fc_flag))
1309	clear_bit(nr: FC_PT2PT_NO_NVME, addr: &vport->fc_flag);
1310
1311	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
1312
1313	if ((mbxstatus == MBX_SUCCESS) &&
1314	(pmboxq->u.mb.mbxStatus == 0 ||
1315	pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
1316	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1317	lpfc_init_link(phba, pmboxq, phba->cfg_topology,
1318	phba->cfg_link_speed);
1319	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
1320	phba->fc_ratov * 2);
1321	if ((mbxstatus == MBX_SUCCESS) &&
1322	(pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
1323	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
1324	"2859 SLI authentication is required "
1325	"for INIT_LINK but has not done yet\n");
1326	}
1327
1328	lpfc_set_loopback_flag(phba);
1329	if (mbxstatus != MBX_TIMEOUT)
1330	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
1331
1332	if (mbxstatus == MBXERR_ERROR)
1333	return -EIO;
1334
1335	return 0;
1336	}
1337
1338	int
1339	lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock)
1340	{
1341	int cnt = 0;
1342
1343	spin_lock_irq(lock);
1344	while (!list_empty(head: q)) {
1345	spin_unlock_irq(lock);
1346	msleep(msecs: 20);
1347	if (cnt++ > 250) { /* 5 secs */
1348	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1349	"0466 Outstanding IO when "
1350	"bringing Adapter offline\n");
1351	return 0;
1352	}
1353	spin_lock_irq(lock);
1354	}
1355	spin_unlock_irq(lock);
1356	return 1;
1357	}
1358
1359	/**
1360	* lpfc_do_offline - Issues a mailbox command to bring the link down
1361	* @phba: lpfc_hba pointer.
1362	* @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
1363	*
1364	* Notes:
1365	* Assumes any error from lpfc_do_offline() will be negative.
1366	* Can wait up to 5 seconds for the port ring buffers count
1367	* to reach zero, prints a warning if it is not zero and continues.
1368	* lpfc_workq_post_event() returns a non-zero return code if call fails.
1369	*
1370	* Returns:
1371	* -EIO error posting the event
1372	* zero for success
1373	**/
1374	static int
1375	lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
1376	{
1377	struct completion online_compl;
1378	struct lpfc_queue *qp = NULL;
1379	struct lpfc_sli_ring *pring;
1380	struct lpfc_sli *psli;
1381	int status = 0;
1382	int i;
1383	int rc;
1384
1385	init_completion(x: &online_compl);
1386	rc = lpfc_workq_post_event(phba, &status, &online_compl,
1387	LPFC_EVT_OFFLINE_PREP);
1388	if (rc == 0)
1389	return -ENOMEM;
1390
1391	wait_for_completion(&online_compl);
1392
1393	if (status != 0)
1394	return -EIO;
1395
1396	psli = &phba->sli;
1397
1398	/*
1399	* If freeing the queues have already started, don't access them.
1400	* Otherwise set FREE_WAIT to indicate that queues are being used
1401	* to hold the freeing process until we finish.
1402	*/
1403	spin_lock_irq(lock: &phba->hbalock);
1404	if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) {
1405	psli->sli_flag |= LPFC_QUEUE_FREE_WAIT;
1406	} else {
1407	spin_unlock_irq(lock: &phba->hbalock);
1408	goto skip_wait;
1409	}
1410	spin_unlock_irq(lock: &phba->hbalock);
1411
1412	/* Wait a little for things to settle down, but not
1413	* long enough for dev loss timeout to expire.
1414	*/
1415	if (phba->sli_rev != LPFC_SLI_REV4) {
1416	for (i = 0; i < psli->num_rings; i++) {
1417	pring = &psli->sli3_ring[i];
1418	if (!lpfc_emptyq_wait(phba, q: &pring->txcmplq,
1419	lock: &phba->hbalock))
1420	goto out;
1421	}
1422	} else {
1423	list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1424	pring = qp->pring;
1425	if (!pring)
1426	continue;
1427	if (!lpfc_emptyq_wait(phba, q: &pring->txcmplq,
1428	lock: &pring->ring_lock))
1429	goto out;
1430	}
1431	}
1432	out:
1433	spin_lock_irq(lock: &phba->hbalock);
1434	psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT;
1435	spin_unlock_irq(lock: &phba->hbalock);
1436
1437	skip_wait:
1438	init_completion(x: &online_compl);
1439	rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
1440	if (rc == 0)
1441	return -ENOMEM;
1442
1443	wait_for_completion(&online_compl);
1444
1445	if (status != 0)
1446	return -EIO;
1447
1448	return 0;
1449	}
1450
1451	/**
1452	* lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA
1453	* @phba: lpfc_hba pointer.
1454	*
1455	* Description:
1456	* Issues a PCI secondary bus reset for the phba->pcidev.
1457	*
1458	* Notes:
1459	* First walks the bus_list to ensure only PCI devices with Emulex
1460	* vendor id, device ids that support hot reset, only one occurrence
1461	* of function 0, and all ports on the bus are in offline mode to ensure the
1462	* hot reset only affects one valid HBA.
1463	*
1464	* Returns:
1465	* -ENOTSUPP, cfg_enable_hba_reset must be of value 2
1466	* -ENODEV, NULL ptr to pcidev
1467	* -EBADSLT, detected invalid device
1468	* -EBUSY, port is not in offline state
1469	* 0, successful
1470	*/
1471	static int
1472	lpfc_reset_pci_bus(struct lpfc_hba *phba)
1473	{
1474	struct pci_dev *pdev = phba->pcidev;
1475	struct Scsi_Host *shost = NULL;
1476	struct lpfc_hba *phba_other = NULL;
1477	struct pci_dev *ptr = NULL;
1478	int res;
1479
1480	if (phba->cfg_enable_hba_reset != 2)
1481	return -ENOTSUPP;
1482
1483	if (!pdev) {
1484	lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n");
1485	return -ENODEV;
1486	}
1487
1488	res = lpfc_check_pci_resettable(phba);
1489	if (res)
1490	return res;
1491
1492	/* Walk the list of devices on the pci_dev's bus */
1493	list_for_each_entry(ptr, &pdev->bus->devices, bus_list) {
1494	/* Check port is offline */
1495	shost = pci_get_drvdata(pdev: ptr);
1496	if (shost) {
1497	phba_other =
1498	((struct lpfc_vport *)shost->hostdata)->phba;
1499	if (!test_bit(FC_OFFLINE_MODE,
1500	&phba_other->pport->fc_flag)) {
1501	lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT,
1502	"8349 WWPN = 0x%02x%02x%02x%02x"
1503	"%02x%02x%02x%02x is not "
1504	"offline!\n",
1505	phba_other->wwpn[0],
1506	phba_other->wwpn[1],
1507	phba_other->wwpn[2],
1508	phba_other->wwpn[3],
1509	phba_other->wwpn[4],
1510	phba_other->wwpn[5],
1511	phba_other->wwpn[6],
1512	phba_other->wwpn[7]);
1513	return -EBUSY;
1514	}
1515	}
1516	}
1517
1518	/* Issue PCI bus reset */
1519	res = pci_reset_bus(dev: pdev);
1520	if (res) {
1521	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1522	"8350 PCI reset bus failed: %d\n", res);
1523	}
1524
1525	return res;
1526	}
1527
1528	/**
1529	* lpfc_selective_reset - Offline then onlines the port
1530	* @phba: lpfc_hba pointer.
1531	*
1532	* Description:
1533	* If the port is configured to allow a reset then the hba is brought
1534	* offline then online.
1535	*
1536	* Notes:
1537	* Assumes any error from lpfc_do_offline() will be negative.
1538	* Do not make this function static.
1539	*
1540	* Returns:
1541	* lpfc_do_offline() return code if not zero
1542	* -EIO reset not configured or error posting the event
1543	* zero for success
1544	**/
1545	int
1546	lpfc_selective_reset(struct lpfc_hba *phba)
1547	{
1548	struct completion online_compl;
1549	int status = 0;
1550	int rc;
1551
1552	if (!phba->cfg_enable_hba_reset)
1553	return -EACCES;
1554
1555	if (!test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag)) {
1556	status = lpfc_do_offline(phba, type: LPFC_EVT_OFFLINE);
1557
1558	if (status != 0)
1559	return status;
1560	}
1561
1562	init_completion(x: &online_compl);
1563	rc = lpfc_workq_post_event(phba, &status, &online_compl,
1564	LPFC_EVT_ONLINE);
1565	if (rc == 0)
1566	return -ENOMEM;
1567
1568	wait_for_completion(&online_compl);
1569
1570	if (status != 0)
1571	return -EIO;
1572
1573	return 0;
1574	}
1575
1576	/**
1577	* lpfc_issue_reset - Selectively resets an adapter
1578	* @dev: class device that is converted into a Scsi_host.
1579	* @attr: device attribute, not used.
1580	* @buf: containing the string "selective".
1581	* @count: unused variable.
1582	*
1583	* Description:
1584	* If the buf contains the string "selective" then lpfc_selective_reset()
1585	* is called to perform the reset.
1586	*
1587	* Notes:
1588	* Assumes any error from lpfc_selective_reset() will be negative.
1589	* If lpfc_selective_reset() returns zero then the length of the buffer
1590	* is returned which indicates success
1591	*
1592	* Returns:
1593	* -EINVAL if the buffer does not contain the string "selective"
1594	* length of buf if lpfc-selective_reset() if the call succeeds
1595	* return value of lpfc_selective_reset() if the call fails
1596	**/
1597	static ssize_t
1598	lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
1599	const char *buf, size_t count)
1600	{
1601	struct Scsi_Host *shost = class_to_shost(dev);
1602	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1603	struct lpfc_hba *phba = vport->phba;
1604	int status = -EINVAL;
1605
1606	if (!phba->cfg_enable_hba_reset)
1607	return -EACCES;
1608
1609	if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
1610	status = phba->lpfc_selective_reset(phba);
1611
1612	if (status == 0)
1613	return strlen(buf);
1614	else
1615	return status;
1616	}
1617
1618	/**
1619	* lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
1620	* @phba: lpfc_hba pointer.
1621	*
1622	* Description:
1623	* SLI4 interface type-2 device to wait on the sliport status register for
1624	* the readyness after performing a firmware reset.
1625	*
1626	* Returns:
1627	* zero for success, -EPERM when port does not have privilege to perform the
1628	* reset, -EIO when port timeout from recovering from the reset.
1629	*
1630	* Note:
1631	* As the caller will interpret the return code by value, be careful in making
1632	* change or addition to return codes.
1633	**/
1634	int
1635	lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
1636	{
1637	struct lpfc_register portstat_reg = {0};
1638	int i;
1639
1640	msleep(msecs: 100);
1641	if (lpfc_readl(addr: phba->sli4_hba.u.if_type2.STATUSregaddr,
1642	data: &portstat_reg.word0))
1643	return -EIO;
1644
1645	/* verify if privileged for the request operation */
1646	if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
1647	!bf_get(lpfc_sliport_status_err, &portstat_reg))
1648	return -EPERM;
1649
1650	/* There is no point to wait if the port is in an unrecoverable
1651	* state.
1652	*/
1653	if (lpfc_sli4_unrecoverable_port(portstat_reg: &portstat_reg))
1654	return -EIO;
1655
1656	/* wait for the SLI port firmware ready after firmware reset */
1657	for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
1658	msleep(msecs: 10);
1659	if (lpfc_readl(addr: phba->sli4_hba.u.if_type2.STATUSregaddr,
1660	data: &portstat_reg.word0))
1661	continue;
1662	if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
1663	continue;
1664	if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
1665	continue;
1666	if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
1667	continue;
1668	break;
1669	}
1670
1671	if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
1672	return 0;
1673	else
1674	return -EIO;
1675	}
1676
1677	/**
1678	* lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
1679	* @phba: lpfc_hba pointer.
1680	* @opcode: The sli4 config command opcode.
1681	*
1682	* Description:
1683	* Request SLI4 interface type-2 device to perform a physical register set
1684	* access.
1685	*
1686	* Returns:
1687	* zero for success
1688	**/
1689	static ssize_t
1690	lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
1691	{
1692	struct completion online_compl;
1693	struct pci_dev *pdev = phba->pcidev;
1694	unsigned long before_fc_flag;
1695	uint32_t sriov_nr_virtfn;
1696	uint32_t reg_val;
1697	int status = 0, rc = 0;
1698	int job_posted = 1, sriov_err;
1699
1700	if (!phba->cfg_enable_hba_reset)
1701	return -EACCES;
1702
1703	if ((phba->sli_rev < LPFC_SLI_REV4) ||
1704	(bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
1705	LPFC_SLI_INTF_IF_TYPE_2))
1706	return -EPERM;
1707
1708	/* Keep state if we need to restore back */
1709	before_fc_flag = phba->pport->fc_flag;
1710	sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
1711
1712	if (opcode == LPFC_FW_DUMP) {
1713	init_completion(x: &online_compl);
1714	phba->fw_dump_cmpl = &online_compl;
1715	} else {
1716	/* Disable SR-IOV virtual functions if enabled */
1717	if (phba->cfg_sriov_nr_virtfn) {
1718	pci_disable_sriov(dev: pdev);
1719	phba->cfg_sriov_nr_virtfn = 0;
1720	}
1721
1722	status = lpfc_do_offline(phba, type: LPFC_EVT_OFFLINE);
1723
1724	if (status != 0)
1725	return status;
1726
1727	/* wait for the device to be quiesced before firmware reset */
1728	msleep(msecs: 100);
1729	}
1730
1731	reg_val = readl(addr: phba->sli4_hba.conf_regs_memmap_p +
1732	LPFC_CTL_PDEV_CTL_OFFSET);
1733
1734	if (opcode == LPFC_FW_DUMP)
1735	reg_val |= LPFC_FW_DUMP_REQUEST;
1736	else if (opcode == LPFC_FW_RESET)
1737	reg_val |= LPFC_CTL_PDEV_CTL_FRST;
1738	else if (opcode == LPFC_DV_RESET)
1739	reg_val |= LPFC_CTL_PDEV_CTL_DRST;
1740
1741	writel(val: reg_val, addr: phba->sli4_hba.conf_regs_memmap_p +
1742	LPFC_CTL_PDEV_CTL_OFFSET);
1743	/* flush */
1744	readl(addr: phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
1745
1746	/* delay driver action following IF_TYPE_2 reset */
1747	rc = lpfc_sli4_pdev_status_reg_wait(phba);
1748
1749	if (rc == -EPERM) {
1750	/* no privilege for reset */
1751	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1752	"3150 No privilege to perform the requested "
1753	"access: x%x\n", reg_val);
1754	} else if (rc == -EIO) {
1755	/* reset failed, there is nothing more we can do */
1756	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1757	"3153 Fail to perform the requested "
1758	"access: x%x\n", reg_val);
1759	if (phba->fw_dump_cmpl)
1760	phba->fw_dump_cmpl = NULL;
1761	return rc;
1762	}
1763
1764	/* keep the original port state */
1765	if (test_bit(FC_OFFLINE_MODE, &before_fc_flag)) {
1766	if (phba->fw_dump_cmpl)
1767	phba->fw_dump_cmpl = NULL;
1768	goto out;
1769	}
1770
1771	/* Firmware dump will trigger an HA_ERATT event, and
1772	* lpfc_handle_eratt_s4 routine already handles bringing the port back
1773	* online.
1774	*/
1775	if (opcode == LPFC_FW_DUMP) {
1776	wait_for_completion(phba->fw_dump_cmpl);
1777	} else {
1778	init_completion(x: &online_compl);
1779	job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
1780	LPFC_EVT_ONLINE);
1781	if (!job_posted)
1782	goto out;
1783
1784	wait_for_completion(&online_compl);
1785	}
1786	out:
1787	/* in any case, restore the virtual functions enabled as before */
1788	if (sriov_nr_virtfn) {
1789	/* If fw_dump was performed, first disable to clean up */
1790	if (opcode == LPFC_FW_DUMP) {
1791	pci_disable_sriov(dev: pdev);
1792	phba->cfg_sriov_nr_virtfn = 0;
1793	}
1794
1795	sriov_err =
1796	lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
1797	if (!sriov_err)
1798	phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
1799	}
1800
1801	/* return proper error code */
1802	if (!rc) {
1803	if (!job_posted)
1804	rc = -ENOMEM;
1805	else if (status)
1806	rc = -EIO;
1807	}
1808	return rc;
1809	}
1810
1811	/**
1812	* lpfc_nport_evt_cnt_show - Return the number of nport events
1813	* @dev: class device that is converted into a Scsi_host.
1814	* @attr: device attribute, not used.
1815	* @buf: on return contains the ascii number of nport events.
1816	*
1817	* Returns: size of formatted string.
1818	**/
1819	static ssize_t
1820	lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1821	char *buf)
1822	{
1823	struct Scsi_Host *shost = class_to_shost(dev);
1824	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1825	struct lpfc_hba *phba = vport->phba;
1826
1827	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", phba->nport_event_cnt);
1828	}
1829
1830	static int
1831	lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out)
1832	{
1833	LPFC_MBOXQ_t *mbox = NULL;
1834	unsigned long val = 0;
1835	char *pval = NULL;
1836	int rc = 0;
1837
1838	if (!strncmp("enable", buff_out,
1839	strlen("enable"))) {
1840	pval = buff_out + strlen("enable") + 1;
1841	rc = kstrtoul(s: pval, base: 0, res: &val);
1842	if (rc)
1843	return rc; /* Invalid number */
1844	} else if (!strncmp("disable", buff_out,
1845	strlen("disable"))) {
1846	val = 0;
1847	} else {
1848	return -EINVAL; /* Invalid command */
1849	}
1850
1851	switch (val) {
1852	case 0:
1853	val = 0x0; /* Disable */
1854	break;
1855	case 2:
1856	val = 0x1; /* Enable two port trunk */
1857	break;
1858	case 4:
1859	val = 0x2; /* Enable four port trunk */
1860	break;
1861	default:
1862	return -EINVAL;
1863	}
1864
1865	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1866	"0070 Set trunk mode with val %ld ", val);
1867
1868	mbox = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
1869	if (!mbox)
1870	return -ENOMEM;
1871
1872	lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
1873	LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE,
1874	12, LPFC_SLI4_MBX_EMBED);
1875
1876	bf_set(lpfc_mbx_set_trunk_mode,
1877	&mbox->u.mqe.un.set_trunk_mode,
1878	val);
1879	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
1880	if (rc)
1881	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1882	"0071 Set trunk mode failed with status: %d",
1883	rc);
1884	mempool_free(element: mbox, pool: phba->mbox_mem_pool);
1885
1886	return 0;
1887	}
1888
1889	static ssize_t
1890	lpfc_xcvr_data_show(struct device *dev, struct device_attribute *attr,
1891	char *buf)
1892	{
1893	struct Scsi_Host *shost = class_to_shost(dev);
1894	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
1895	struct lpfc_hba *phba = vport->phba;
1896	int rc;
1897	int len = 0;
1898	struct lpfc_rdp_context *rdp_context;
1899	u16 temperature;
1900	u16 rx_power;
1901	u16 tx_bias;
1902	u16 tx_power;
1903	u16 vcc;
1904	char chbuf[128];
1905	u16 wavelength = 0;
1906	struct sff_trasnceiver_codes_byte7 *trasn_code_byte7;
1907
1908	/* Get transceiver information */
1909	rdp_context = kmalloc(size: sizeof(*rdp_context), GFP_KERNEL);
1910
1911	rc = lpfc_get_sfp_info_wait(phba, rdp_context);
1912	if (rc) {
1913	len = scnprintf(buf, PAGE_SIZE - len, fmt: "SFP info NA:\n");
1914	goto out_free_rdp;
1915	}
1916
1917	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16);
1918
1919	len = scnprintf(buf, PAGE_SIZE - len, fmt: "VendorName:\t%s\n", chbuf);
1920	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1921	fmt: "VendorOUI:\t%02x-%02x-%02x\n",
1922	(uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI],
1923	(uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1],
1924	(uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]);
1925	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16);
1926	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "VendorPN:\t%s\n", chbuf);
1927	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16);
1928	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "VendorSN:\t%s\n", chbuf);
1929	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4);
1930	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "VendorRev:\t%s\n", chbuf);
1931	strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8);
1932	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "DateCode:\t%s\n", chbuf);
1933	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "Identifier:\t%xh\n",
1934	(uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]);
1935	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "ExtIdentifier:\t%xh\n",
1936	(uint8_t)rdp_context->page_a0[SSF_EXT_IDENTIFIER]);
1937	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "Connector:\t%xh\n",
1938	(uint8_t)rdp_context->page_a0[SSF_CONNECTOR]);
1939	wavelength = (rdp_context->page_a0[SSF_WAVELENGTH_B1] << 8) |
1940	rdp_context->page_a0[SSF_WAVELENGTH_B0];
1941
1942	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "Wavelength:\t%d nm\n",
1943	wavelength);
1944	trasn_code_byte7 = (struct sff_trasnceiver_codes_byte7 *)
1945	&rdp_context->page_a0[SSF_TRANSCEIVER_CODE_B7];
1946
1947	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "Speeds: \t");
1948	if (*(uint8_t *)trasn_code_byte7 == 0) {
1949	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "Unknown\n");
1950	} else {
1951	if (trasn_code_byte7->fc_sp_100MB)
1952	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "1 ");
1953	if (trasn_code_byte7->fc_sp_200mb)
1954	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "2 ");
1955	if (trasn_code_byte7->fc_sp_400MB)
1956	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "4 ");
1957	if (trasn_code_byte7->fc_sp_800MB)
1958	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "8 ");
1959	if (trasn_code_byte7->fc_sp_1600MB)
1960	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "16 ");
1961	if (trasn_code_byte7->fc_sp_3200MB)
1962	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "32 ");
1963	if (trasn_code_byte7->speed_chk_ecc)
1964	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "64 ");
1965	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "GB\n");
1966	}
1967	temperature = (rdp_context->page_a2[SFF_TEMPERATURE_B1] << 8 |
1968	rdp_context->page_a2[SFF_TEMPERATURE_B0]);
1969	vcc = (rdp_context->page_a2[SFF_VCC_B1] << 8 |
1970	rdp_context->page_a2[SFF_VCC_B0]);
1971	tx_power = (rdp_context->page_a2[SFF_TXPOWER_B1] << 8 |
1972	rdp_context->page_a2[SFF_TXPOWER_B0]);
1973	tx_bias = (rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
1974	rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B0]);
1975	rx_power = (rdp_context->page_a2[SFF_RXPOWER_B1] << 8 |
1976	rdp_context->page_a2[SFF_RXPOWER_B0]);
1977
1978	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1979	fmt: "Temperature:\tx%04x C\n", temperature);
1980	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "Vcc:\t\tx%04x V\n", vcc);
1981	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
1982	fmt: "TxBiasCurrent:\tx%04x mA\n", tx_bias);
1983	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "TxPower:\tx%04x mW\n",
1984	tx_power);
1985	len += scnprintf(buf: buf + len, PAGE_SIZE - len, fmt: "RxPower:\tx%04x mW\n",
1986	rx_power);
1987	out_free_rdp:
1988	kfree(objp: rdp_context);
1989	return len;
1990	}
1991
1992	/**
1993	* lpfc_board_mode_show - Return the state of the board
1994	* @dev: class device that is converted into a Scsi_host.
1995	* @attr: device attribute, not used.
1996	* @buf: on return contains the state of the adapter.
1997	*
1998	* Returns: size of formatted string.
1999	**/
2000	static ssize_t
2001	lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
2002	char *buf)
2003	{
2004	struct Scsi_Host *shost = class_to_shost(dev);
2005	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2006	struct lpfc_hba *phba = vport->phba;
2007	char * state;
2008
2009	if (phba->link_state == LPFC_HBA_ERROR)
2010	state = "error";
2011	else if (phba->link_state == LPFC_WARM_START)
2012	state = "warm start";
2013	else if (phba->link_state == LPFC_INIT_START)
2014	state = "offline";
2015	else
2016	state = "online";
2017
2018	return scnprintf(buf, PAGE_SIZE, fmt: "%s\n", state);
2019	}
2020
2021	/**
2022	* lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
2023	* @dev: class device that is converted into a Scsi_host.
2024	* @attr: device attribute, not used.
2025	* @buf: containing one of the strings "online", "offline", "warm" or "error".
2026	* @count: unused variable.
2027	*
2028	* Returns:
2029	* -EACCES if enable hba reset not enabled
2030	* -EINVAL if the buffer does not contain a valid string (see above)
2031	* -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
2032	* buf length greater than zero indicates success
2033	**/
2034	static ssize_t
2035	lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
2036	const char *buf, size_t count)
2037	{
2038	struct Scsi_Host *shost = class_to_shost(dev);
2039	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2040	struct lpfc_hba *phba = vport->phba;
2041	struct completion online_compl;
2042	char *board_mode_str = NULL;
2043	int status = 0;
2044	int rc;
2045
2046	if (!phba->cfg_enable_hba_reset) {
2047	status = -EACCES;
2048	goto board_mode_out;
2049	}
2050
2051	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2052	"3050 lpfc_board_mode set to %s\n", buf);
2053
2054	init_completion(x: &online_compl);
2055
2056	if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
2057	rc = lpfc_workq_post_event(phba, &status, &online_compl,
2058	LPFC_EVT_ONLINE);
2059	if (rc == 0) {
2060	status = -ENOMEM;
2061	goto board_mode_out;
2062	}
2063	wait_for_completion(&online_compl);
2064	if (status)
2065	status = -EIO;
2066	} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
2067	status = lpfc_do_offline(phba, type: LPFC_EVT_OFFLINE);
2068	else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
2069	if (phba->sli_rev == LPFC_SLI_REV4)
2070	status = -EINVAL;
2071	else
2072	status = lpfc_do_offline(phba, type: LPFC_EVT_WARM_START);
2073	else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
2074	if (phba->sli_rev == LPFC_SLI_REV4)
2075	status = -EINVAL;
2076	else
2077	status = lpfc_do_offline(phba, type: LPFC_EVT_KILL);
2078	else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
2079	status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
2080	else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
2081	status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
2082	else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
2083	status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
2084	else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1)
2085	== 0)
2086	status = lpfc_reset_pci_bus(phba);
2087	else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0)
2088	lpfc_issue_hb_tmo(phba);
2089	else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0)
2090	status = lpfc_set_trunking(phba, buff_out: (char *)buf + sizeof("trunk"));
2091	else
2092	status = -EINVAL;
2093
2094	board_mode_out:
2095	if (!status)
2096	return strlen(buf);
2097	else {
2098	board_mode_str = strchr(buf, '\n');
2099	if (board_mode_str)
2100	*board_mode_str = '\0';
2101	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2102	"3097 Failed \"%s\", status(%d), "
2103	"fc_flag(x%lx)\n",
2104	buf, status, phba->pport->fc_flag);
2105	return status;
2106	}
2107	}
2108
2109	/**
2110	* lpfc_get_hba_info - Return various bits of informaton about the adapter
2111	* @phba: pointer to the adapter structure.
2112	* @mxri: max xri count.
2113	* @axri: available xri count.
2114	* @mrpi: max rpi count.
2115	* @arpi: available rpi count.
2116	* @mvpi: max vpi count.
2117	* @avpi: available vpi count.
2118	*
2119	* Description:
2120	* If an integer pointer for an count is not null then the value for the
2121	* count is returned.
2122	*
2123	* Returns:
2124	* zero on error
2125	* one for success
2126	**/
2127	static int
2128	lpfc_get_hba_info(struct lpfc_hba *phba,
2129	uint32_t *mxri, uint32_t *axri,
2130	uint32_t *mrpi, uint32_t *arpi,
2131	uint32_t *mvpi, uint32_t *avpi)
2132	{
2133	LPFC_MBOXQ_t *pmboxq;
2134	MAILBOX_t *pmb;
2135	int rc = 0;
2136	struct lpfc_sli4_hba *sli4_hba;
2137	struct lpfc_max_cfg_param *max_cfg_param;
2138	u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi;
2139
2140	/*
2141	* prevent udev from issuing mailbox commands until the port is
2142	* configured.
2143	*/
2144	if (phba->link_state < LPFC_LINK_DOWN ||
2145	!phba->mbox_mem_pool ||
2146	(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
2147	return 0;
2148
2149	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2150	return 0;
2151
2152	pmboxq = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
2153	if (!pmboxq)
2154	return 0;
2155	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2156
2157	pmb = &pmboxq->u.mb;
2158	pmb->mbxCommand = MBX_READ_CONFIG;
2159	pmb->mbxOwner = OWN_HOST;
2160	pmboxq->ctx_buf = NULL;
2161
2162	if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
2163	rc = MBX_NOT_FINISHED;
2164	else
2165	rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2166
2167	if (rc != MBX_SUCCESS) {
2168	if (rc != MBX_TIMEOUT)
2169	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
2170	return 0;
2171	}
2172
2173	if (phba->sli_rev == LPFC_SLI_REV4) {
2174	sli4_hba = &phba->sli4_hba;
2175	max_cfg_param = &sli4_hba->max_cfg_param;
2176
2177	/* Normally, extents are not used */
2178	if (!phba->sli4_hba.extents_in_use) {
2179	if (mrpi)
2180	*mrpi = max_cfg_param->max_rpi;
2181	if (mxri)
2182	*mxri = max_cfg_param->max_xri;
2183	if (mvpi) {
2184	max_vpi = max_cfg_param->max_vpi;
2185
2186	/* Limit the max we support */
2187	if (max_vpi > LPFC_MAX_VPI)
2188	max_vpi = LPFC_MAX_VPI;
2189	*mvpi = max_vpi;
2190	}
2191	} else { /* Extents in use */
2192	if (mrpi) {
2193	if (lpfc_sli4_get_avail_extnt_rsrc(phba,
2194	LPFC_RSC_TYPE_FCOE_RPI,
2195	&rsrc_ext_cnt,
2196	&rsrc_ext_size)) {
2197	rc = 0;
2198	goto free_pmboxq;
2199	}
2200
2201	*mrpi = rsrc_ext_cnt * rsrc_ext_size;
2202	}
2203
2204	if (mxri) {
2205	if (lpfc_sli4_get_avail_extnt_rsrc(phba,
2206	LPFC_RSC_TYPE_FCOE_XRI,
2207	&rsrc_ext_cnt,
2208	&rsrc_ext_size)) {
2209	rc = 0;
2210	goto free_pmboxq;
2211	}
2212
2213	*mxri = rsrc_ext_cnt * rsrc_ext_size;
2214	}
2215
2216	if (mvpi) {
2217	if (lpfc_sli4_get_avail_extnt_rsrc(phba,
2218	LPFC_RSC_TYPE_FCOE_VPI,
2219	&rsrc_ext_cnt,
2220	&rsrc_ext_size)) {
2221	rc = 0;
2222	goto free_pmboxq;
2223	}
2224
2225	max_vpi = rsrc_ext_cnt * rsrc_ext_size;
2226
2227	/* Limit the max we support */
2228	if (max_vpi > LPFC_MAX_VPI)
2229	max_vpi = LPFC_MAX_VPI;
2230	*mvpi = max_vpi;
2231	}
2232	}
2233	} else {
2234	if (mrpi)
2235	*mrpi = pmb->un.varRdConfig.max_rpi;
2236	if (arpi)
2237	*arpi = pmb->un.varRdConfig.avail_rpi;
2238	if (mxri)
2239	*mxri = pmb->un.varRdConfig.max_xri;
2240	if (axri)
2241	*axri = pmb->un.varRdConfig.avail_xri;
2242	if (mvpi)
2243	*mvpi = pmb->un.varRdConfig.max_vpi;
2244	if (avpi) {
2245	/* avail_vpi is only valid if link is up and ready */
2246	if (phba->link_state == LPFC_HBA_READY)
2247	*avpi = pmb->un.varRdConfig.avail_vpi;
2248	else
2249	*avpi = pmb->un.varRdConfig.max_vpi;
2250	}
2251	}
2252
2253	/* Success */
2254	rc = 1;
2255
2256	free_pmboxq:
2257	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
2258	return rc;
2259	}
2260
2261	/**
2262	* lpfc_max_rpi_show - Return maximum rpi
2263	* @dev: class device that is converted into a Scsi_host.
2264	* @attr: device attribute, not used.
2265	* @buf: on return contains the maximum rpi count in decimal or "Unknown".
2266	*
2267	* Description:
2268	* Calls lpfc_get_hba_info() asking for just the mrpi count.
2269	* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2270	* to "Unknown" and the buffer length is returned, therefore the caller
2271	* must check for "Unknown" in the buffer to detect a failure.
2272	*
2273	* Returns: size of formatted string.
2274	**/
2275	static ssize_t
2276	lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
2277	char *buf)
2278	{
2279	struct Scsi_Host *shost = class_to_shost(dev);
2280	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2281	struct lpfc_hba *phba = vport->phba;
2282	uint32_t cnt;
2283
2284	if (lpfc_get_hba_info(phba, NULL, NULL, mrpi: &cnt, NULL, NULL, NULL))
2285	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", cnt);
2286	return scnprintf(buf, PAGE_SIZE, fmt: "Unknown\n");
2287	}
2288
2289	/**
2290	* lpfc_used_rpi_show - Return maximum rpi minus available rpi
2291	* @dev: class device that is converted into a Scsi_host.
2292	* @attr: device attribute, not used.
2293	* @buf: containing the used rpi count in decimal or "Unknown".
2294	*
2295	* Description:
2296	* Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
2297	* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2298	* to "Unknown" and the buffer length is returned, therefore the caller
2299	* must check for "Unknown" in the buffer to detect a failure.
2300	*
2301	* Returns: size of formatted string.
2302	**/
2303	static ssize_t
2304	lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
2305	char *buf)
2306	{
2307	struct Scsi_Host *shost = class_to_shost(dev);
2308	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2309	struct lpfc_hba *phba = vport->phba;
2310	struct lpfc_sli4_hba *sli4_hba;
2311	struct lpfc_max_cfg_param *max_cfg_param;
2312	u32 cnt = 0, acnt = 0;
2313
2314	if (phba->sli_rev == LPFC_SLI_REV4) {
2315	sli4_hba = &phba->sli4_hba;
2316	max_cfg_param = &sli4_hba->max_cfg_param;
2317	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
2318	max_cfg_param->rpi_used);
2319	} else {
2320	if (lpfc_get_hba_info(phba, NULL, NULL, mrpi: &cnt, arpi: &acnt, NULL, NULL))
2321	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", (cnt - acnt));
2322	}
2323	return scnprintf(buf, PAGE_SIZE, fmt: "Unknown\n");
2324	}
2325
2326	/**
2327	* lpfc_max_xri_show - Return maximum xri
2328	* @dev: class device that is converted into a Scsi_host.
2329	* @attr: device attribute, not used.
2330	* @buf: on return contains the maximum xri count in decimal or "Unknown".
2331	*
2332	* Description:
2333	* Calls lpfc_get_hba_info() asking for just the mrpi count.
2334	* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2335	* to "Unknown" and the buffer length is returned, therefore the caller
2336	* must check for "Unknown" in the buffer to detect a failure.
2337	*
2338	* Returns: size of formatted string.
2339	**/
2340	static ssize_t
2341	lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
2342	char *buf)
2343	{
2344	struct Scsi_Host *shost = class_to_shost(dev);
2345	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2346	struct lpfc_hba *phba = vport->phba;
2347	uint32_t cnt;
2348
2349	if (lpfc_get_hba_info(phba, mxri: &cnt, NULL, NULL, NULL, NULL, NULL))
2350	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", cnt);
2351	return scnprintf(buf, PAGE_SIZE, fmt: "Unknown\n");
2352	}
2353
2354	/**
2355	* lpfc_used_xri_show - Return maximum xpi minus the available xpi
2356	* @dev: class device that is converted into a Scsi_host.
2357	* @attr: device attribute, not used.
2358	* @buf: on return contains the used xri count in decimal or "Unknown".
2359	*
2360	* Description:
2361	* Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
2362	* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2363	* to "Unknown" and the buffer length is returned, therefore the caller
2364	* must check for "Unknown" in the buffer to detect a failure.
2365	*
2366	* Returns: size of formatted string.
2367	**/
2368	static ssize_t
2369	lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
2370	char *buf)
2371	{
2372	struct Scsi_Host *shost = class_to_shost(dev);
2373	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2374	struct lpfc_hba *phba = vport->phba;
2375	struct lpfc_sli4_hba *sli4_hba;
2376	struct lpfc_max_cfg_param *max_cfg_param;
2377	u32 cnt = 0, acnt = 0;
2378
2379	if (phba->sli_rev == LPFC_SLI_REV4) {
2380	sli4_hba = &phba->sli4_hba;
2381	max_cfg_param = &sli4_hba->max_cfg_param;
2382	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
2383	max_cfg_param->xri_used);
2384	} else {
2385	if (lpfc_get_hba_info(phba, mxri: &cnt, axri: &acnt, NULL, NULL, NULL, NULL))
2386	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", (cnt - acnt));
2387	}
2388	return scnprintf(buf, PAGE_SIZE, fmt: "Unknown\n");
2389	}
2390
2391	/**
2392	* lpfc_max_vpi_show - Return maximum vpi
2393	* @dev: class device that is converted into a Scsi_host.
2394	* @attr: device attribute, not used.
2395	* @buf: on return contains the maximum vpi count in decimal or "Unknown".
2396	*
2397	* Description:
2398	* Calls lpfc_get_hba_info() asking for just the mvpi count.
2399	* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2400	* to "Unknown" and the buffer length is returned, therefore the caller
2401	* must check for "Unknown" in the buffer to detect a failure.
2402	*
2403	* Returns: size of formatted string.
2404	**/
2405	static ssize_t
2406	lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
2407	char *buf)
2408	{
2409	struct Scsi_Host *shost = class_to_shost(dev);
2410	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2411	struct lpfc_hba *phba = vport->phba;
2412	uint32_t cnt;
2413
2414	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, mvpi: &cnt, NULL))
2415	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", cnt);
2416	return scnprintf(buf, PAGE_SIZE, fmt: "Unknown\n");
2417	}
2418
2419	/**
2420	* lpfc_used_vpi_show - Return maximum vpi minus the available vpi
2421	* @dev: class device that is converted into a Scsi_host.
2422	* @attr: device attribute, not used.
2423	* @buf: on return contains the used vpi count in decimal or "Unknown".
2424	*
2425	* Description:
2426	* Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
2427	* If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2428	* to "Unknown" and the buffer length is returned, therefore the caller
2429	* must check for "Unknown" in the buffer to detect a failure.
2430	*
2431	* Returns: size of formatted string.
2432	**/
2433	static ssize_t
2434	lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
2435	char *buf)
2436	{
2437	struct Scsi_Host *shost = class_to_shost(dev);
2438	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2439	struct lpfc_hba *phba = vport->phba;
2440	struct lpfc_sli4_hba *sli4_hba;
2441	struct lpfc_max_cfg_param *max_cfg_param;
2442	u32 cnt = 0, acnt = 0;
2443
2444	if (phba->sli_rev == LPFC_SLI_REV4) {
2445	sli4_hba = &phba->sli4_hba;
2446	max_cfg_param = &sli4_hba->max_cfg_param;
2447	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
2448	max_cfg_param->vpi_used);
2449	} else {
2450	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, mvpi: &cnt, avpi: &acnt))
2451	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", (cnt - acnt));
2452	}
2453	return scnprintf(buf, PAGE_SIZE, fmt: "Unknown\n");
2454	}
2455
2456	/**
2457	* lpfc_npiv_info_show - Return text about NPIV support for the adapter
2458	* @dev: class device that is converted into a Scsi_host.
2459	* @attr: device attribute, not used.
2460	* @buf: text that must be interpreted to determine if npiv is supported.
2461	*
2462	* Description:
2463	* Buffer will contain text indicating npiv is not suppoerted on the port,
2464	* the port is an NPIV physical port, or it is an npiv virtual port with
2465	* the id of the vport.
2466	*
2467	* Returns: size of formatted string.
2468	**/
2469	static ssize_t
2470	lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
2471	char *buf)
2472	{
2473	struct Scsi_Host *shost = class_to_shost(dev);
2474	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2475	struct lpfc_hba *phba = vport->phba;
2476
2477	if (!(phba->max_vpi))
2478	return scnprintf(buf, PAGE_SIZE, fmt: "NPIV Not Supported\n");
2479	if (vport->port_type == LPFC_PHYSICAL_PORT)
2480	return scnprintf(buf, PAGE_SIZE, fmt: "NPIV Physical\n");
2481	return scnprintf(buf, PAGE_SIZE, fmt: "NPIV Virtual (VPI %d)\n", vport->vpi);
2482	}
2483
2484	/**
2485	* lpfc_poll_show - Return text about poll support for the adapter
2486	* @dev: class device that is converted into a Scsi_host.
2487	* @attr: device attribute, not used.
2488	* @buf: on return contains the cfg_poll in hex.
2489	*
2490	* Notes:
2491	* cfg_poll should be a lpfc_polling_flags type.
2492	*
2493	* Returns: size of formatted string.
2494	**/
2495	static ssize_t
2496	lpfc_poll_show(struct device *dev, struct device_attribute *attr,
2497	char *buf)
2498	{
2499	struct Scsi_Host *shost = class_to_shost(dev);
2500	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2501	struct lpfc_hba *phba = vport->phba;
2502
2503	return scnprintf(buf, PAGE_SIZE, fmt: "%#x\n", phba->cfg_poll);
2504	}
2505
2506	/**
2507	* lpfc_poll_store - Set the value of cfg_poll for the adapter
2508	* @dev: class device that is converted into a Scsi_host.
2509	* @attr: device attribute, not used.
2510	* @buf: one or more lpfc_polling_flags values.
2511	* @count: not used.
2512	*
2513	* Notes:
2514	* buf contents converted to integer and checked for a valid value.
2515	*
2516	* Returns:
2517	* -EINVAL if the buffer connot be converted or is out of range
2518	* length of the buf on success
2519	**/
2520	static ssize_t
2521	lpfc_poll_store(struct device *dev, struct device_attribute *attr,
2522	const char *buf, size_t count)
2523	{
2524	struct Scsi_Host *shost = class_to_shost(dev);
2525	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2526	struct lpfc_hba *phba = vport->phba;
2527	uint32_t creg_val;
2528	uint32_t old_val;
2529	int val=0;
2530
2531	if (!isdigit(c: buf[0]))
2532	return -EINVAL;
2533
2534	if (sscanf(buf, "%i", &val) != 1)
2535	return -EINVAL;
2536
2537	if ((val & 0x3) != val)
2538	return -EINVAL;
2539
2540	if (phba->sli_rev == LPFC_SLI_REV4)
2541	val = 0;
2542
2543	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2544	"3051 lpfc_poll changed from %d to %d\n",
2545	phba->cfg_poll, val);
2546
2547	spin_lock_irq(lock: &phba->hbalock);
2548
2549	old_val = phba->cfg_poll;
2550
2551	if (val & ENABLE_FCP_RING_POLLING) {
2552	if ((val & DISABLE_FCP_RING_INT) &&
2553	!(old_val & DISABLE_FCP_RING_INT)) {
2554	if (lpfc_readl(addr: phba->HCregaddr, data: &creg_val)) {
2555	spin_unlock_irq(lock: &phba->hbalock);
2556	return -EINVAL;
2557	}
2558	creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
2559	writel(val: creg_val, addr: phba->HCregaddr);
2560	readl(addr: phba->HCregaddr); /* flush */
2561
2562	lpfc_poll_start_timer(phba);
2563	}
2564	} else if (val != 0x0) {
2565	spin_unlock_irq(lock: &phba->hbalock);
2566	return -EINVAL;
2567	}
2568
2569	if (!(val & DISABLE_FCP_RING_INT) &&
2570	(old_val & DISABLE_FCP_RING_INT))
2571	{
2572	spin_unlock_irq(lock: &phba->hbalock);
2573	del_timer(timer: &phba->fcp_poll_timer);
2574	spin_lock_irq(lock: &phba->hbalock);
2575	if (lpfc_readl(addr: phba->HCregaddr, data: &creg_val)) {
2576	spin_unlock_irq(lock: &phba->hbalock);
2577	return -EINVAL;
2578	}
2579	creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
2580	writel(val: creg_val, addr: phba->HCregaddr);
2581	readl(addr: phba->HCregaddr); /* flush */
2582	}
2583
2584	phba->cfg_poll = val;
2585
2586	spin_unlock_irq(lock: &phba->hbalock);
2587
2588	return strlen(buf);
2589	}
2590
2591	/**
2592	* lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
2593	* @dev: class converted to a Scsi_host structure.
2594	* @attr: device attribute, not used.
2595	* @buf: on return contains the formatted support level.
2596	*
2597	* Description:
2598	* Returns the maximum number of virtual functions a physical function can
2599	* support, 0 will be returned if called on virtual function.
2600	*
2601	* Returns: size of formatted string.
2602	**/
2603	static ssize_t
2604	lpfc_sriov_hw_max_virtfn_show(struct device *dev,
2605	struct device_attribute *attr,
2606	char *buf)
2607	{
2608	struct Scsi_Host *shost = class_to_shost(dev);
2609	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2610	struct lpfc_hba *phba = vport->phba;
2611	uint16_t max_nr_virtfn;
2612
2613	max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
2614	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", max_nr_virtfn);
2615	}
2616
2617	/**
2618	* lpfc_enable_bbcr_set: Sets an attribute value.
2619	* @phba: pointer to the adapter structure.
2620	* @val: integer attribute value.
2621	*
2622	* Description:
2623	* Validates the min and max values then sets the
2624	* adapter config field if in the valid range. prints error message
2625	* and does not set the parameter if invalid.
2626	*
2627	* Returns:
2628	* zero on success
2629	* -EINVAL if val is invalid
2630	*/
2631	static ssize_t
2632	lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val)
2633	{
2634	if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) {
2635	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2636	"3068 lpfc_enable_bbcr changed from %d to "
2637	"%d\n", phba->cfg_enable_bbcr, val);
2638	phba->cfg_enable_bbcr = val;
2639	return 0;
2640	}
2641	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2642	"0451 lpfc_enable_bbcr cannot set to %d, range is 0, "
2643	"1\n", val);
2644	return -EINVAL;
2645	}
2646
2647	/*
2648	* lpfc_param_show - Return a cfg attribute value in decimal
2649	*
2650	* Description:
2651	* Macro that given an attr e.g. hba_queue_depth expands
2652	* into a function with the name lpfc_hba_queue_depth_show.
2653	*
2654	* lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
2655	* @dev: class device that is converted into a Scsi_host.
2656	* @attr: device attribute, not used.
2657	* @buf: on return contains the attribute value in decimal.
2658	*
2659	* Returns: size of formatted string.
2660	**/
2661	#define lpfc_param_show(attr) \
2662	static ssize_t \
2663	lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2664	char *buf) \
2665	{ \
2666	struct Scsi_Host *shost = class_to_shost(dev);\
2667	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2668	struct lpfc_hba *phba = vport->phba;\
2669	return scnprintf(buf, PAGE_SIZE, "%d\n",\
2670	phba->cfg_##attr);\
2671	}
2672
2673	/*
2674	* lpfc_param_hex_show - Return a cfg attribute value in hex
2675	*
2676	* Description:
2677	* Macro that given an attr e.g. hba_queue_depth expands
2678	* into a function with the name lpfc_hba_queue_depth_show
2679	*
2680	* lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
2681	* @dev: class device that is converted into a Scsi_host.
2682	* @attr: device attribute, not used.
2683	* @buf: on return contains the attribute value in hexadecimal.
2684	*
2685	* Returns: size of formatted string.
2686	**/
2687	#define lpfc_param_hex_show(attr) \
2688	static ssize_t \
2689	lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2690	char *buf) \
2691	{ \
2692	struct Scsi_Host *shost = class_to_shost(dev);\
2693	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2694	struct lpfc_hba *phba = vport->phba;\
2695	uint val = 0;\
2696	val = phba->cfg_##attr;\
2697	return scnprintf(buf, PAGE_SIZE, "%#x\n",\
2698	phba->cfg_##attr);\
2699	}
2700
2701	/*
2702	* lpfc_param_init - Initializes a cfg attribute
2703	*
2704	* Description:
2705	* Macro that given an attr e.g. hba_queue_depth expands
2706	* into a function with the name lpfc_hba_queue_depth_init. The macro also
2707	* takes a default argument, a minimum and maximum argument.
2708	*
2709	* lpfc_##attr##_init: Initializes an attribute.
2710	* @phba: pointer to the adapter structure.
2711	* @val: integer attribute value.
2712	*
2713	* Validates the min and max values then sets the adapter config field
2714	* accordingly, or uses the default if out of range and prints an error message.
2715	*
2716	* Returns:
2717	* zero on success
2718	* -EINVAL if default used
2719	**/
2720	#define lpfc_param_init(attr, default, minval, maxval) \
2721	static int \
2722	lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
2723	{ \
2724	if (lpfc_rangecheck(val, minval, maxval)) {\
2725	phba->cfg_##attr = val;\
2726	return 0;\
2727	}\
2728	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2729	"0449 lpfc_"#attr" attribute cannot be set to %d, "\
2730	"allowed range is ["#minval", "#maxval"]\n", val); \
2731	phba->cfg_##attr = default;\
2732	return -EINVAL;\
2733	}
2734
2735	/*
2736	* lpfc_param_set - Set a cfg attribute value
2737	*
2738	* Description:
2739	* Macro that given an attr e.g. hba_queue_depth expands
2740	* into a function with the name lpfc_hba_queue_depth_set
2741	*
2742	* lpfc_##attr##_set: Sets an attribute value.
2743	* @phba: pointer to the adapter structure.
2744	* @val: integer attribute value.
2745	*
2746	* Description:
2747	* Validates the min and max values then sets the
2748	* adapter config field if in the valid range. prints error message
2749	* and does not set the parameter if invalid.
2750	*
2751	* Returns:
2752	* zero on success
2753	* -EINVAL if val is invalid
2754	**/
2755	#define lpfc_param_set(attr, default, minval, maxval) \
2756	static int \
2757	lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
2758	{ \
2759	if (lpfc_rangecheck(val, minval, maxval)) {\
2760	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2761	"3052 lpfc_" #attr " changed from %d to %d\n", \
2762	phba->cfg_##attr, val); \
2763	phba->cfg_##attr = val;\
2764	return 0;\
2765	}\
2766	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2767	"0450 lpfc_"#attr" attribute cannot be set to %d, "\
2768	"allowed range is ["#minval", "#maxval"]\n", val); \
2769	return -EINVAL;\
2770	}
2771
2772	/*
2773	* lpfc_param_store - Set a vport attribute value
2774	*
2775	* Description:
2776	* Macro that given an attr e.g. hba_queue_depth expands
2777	* into a function with the name lpfc_hba_queue_depth_store.
2778	*
2779	* lpfc_##attr##_store: Set an sttribute value.
2780	* @dev: class device that is converted into a Scsi_host.
2781	* @attr: device attribute, not used.
2782	* @buf: contains the attribute value in ascii.
2783	* @count: not used.
2784	*
2785	* Description:
2786	* Convert the ascii text number to an integer, then
2787	* use the lpfc_##attr##_set function to set the value.
2788	*
2789	* Returns:
2790	* -EINVAL if val is invalid or lpfc_##attr##_set() fails
2791	* length of buffer upon success.
2792	**/
2793	#define lpfc_param_store(attr) \
2794	static ssize_t \
2795	lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
2796	const char *buf, size_t count) \
2797	{ \
2798	struct Scsi_Host *shost = class_to_shost(dev);\
2799	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2800	struct lpfc_hba *phba = vport->phba;\
2801	uint val = 0;\
2802	if (!isdigit(buf[0]))\
2803	return -EINVAL;\
2804	if (sscanf(buf, "%i", &val) != 1)\
2805	return -EINVAL;\
2806	if (lpfc_##attr##_set(phba, val) == 0) \
2807	return strlen(buf);\
2808	else \
2809	return -EINVAL;\
2810	}
2811
2812	/*
2813	* lpfc_vport_param_show - Return decimal formatted cfg attribute value
2814	*
2815	* Description:
2816	* Macro that given an attr e.g. hba_queue_depth expands
2817	* into a function with the name lpfc_hba_queue_depth_show
2818	*
2819	* lpfc_##attr##_show: prints the attribute value in decimal.
2820	* @dev: class device that is converted into a Scsi_host.
2821	* @attr: device attribute, not used.
2822	* @buf: on return contains the attribute value in decimal.
2823	*
2824	* Returns: length of formatted string.
2825	**/
2826	#define lpfc_vport_param_show(attr) \
2827	static ssize_t \
2828	lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2829	char *buf) \
2830	{ \
2831	struct Scsi_Host *shost = class_to_shost(dev);\
2832	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2833	return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
2834	}
2835
2836	/*
2837	* lpfc_vport_param_hex_show - Return hex formatted attribute value
2838	*
2839	* Description:
2840	* Macro that given an attr e.g.
2841	* hba_queue_depth expands into a function with the name
2842	* lpfc_hba_queue_depth_show
2843	*
2844	* lpfc_##attr##_show: prints the attribute value in hexadecimal.
2845	* @dev: class device that is converted into a Scsi_host.
2846	* @attr: device attribute, not used.
2847	* @buf: on return contains the attribute value in hexadecimal.
2848	*
2849	* Returns: length of formatted string.
2850	**/
2851	#define lpfc_vport_param_hex_show(attr) \
2852	static ssize_t \
2853	lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2854	char *buf) \
2855	{ \
2856	struct Scsi_Host *shost = class_to_shost(dev);\
2857	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2858	return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
2859	}
2860
2861	/*
2862	* lpfc_vport_param_init - Initialize a vport cfg attribute
2863	*
2864	* Description:
2865	* Macro that given an attr e.g. hba_queue_depth expands
2866	* into a function with the name lpfc_hba_queue_depth_init. The macro also
2867	* takes a default argument, a minimum and maximum argument.
2868	*
2869	* lpfc_##attr##_init: validates the min and max values then sets the
2870	* adapter config field accordingly, or uses the default if out of range
2871	* and prints an error message.
2872	* @phba: pointer to the adapter structure.
2873	* @val: integer attribute value.
2874	*
2875	* Returns:
2876	* zero on success
2877	* -EINVAL if default used
2878	**/
2879	#define lpfc_vport_param_init(attr, default, minval, maxval) \
2880	static int \
2881	lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
2882	{ \
2883	if (lpfc_rangecheck(val, minval, maxval)) {\
2884	vport->cfg_##attr = val;\
2885	return 0;\
2886	}\
2887	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2888	"0423 lpfc_"#attr" attribute cannot be set to %d, "\
2889	"allowed range is ["#minval", "#maxval"]\n", val); \
2890	vport->cfg_##attr = default;\
2891	return -EINVAL;\
2892	}
2893
2894	/*
2895	* lpfc_vport_param_set - Set a vport cfg attribute
2896	*
2897	* Description:
2898	* Macro that given an attr e.g. hba_queue_depth expands
2899	* into a function with the name lpfc_hba_queue_depth_set
2900	*
2901	* lpfc_##attr##_set: validates the min and max values then sets the
2902	* adapter config field if in the valid range. prints error message
2903	* and does not set the parameter if invalid.
2904	* @phba: pointer to the adapter structure.
2905	* @val: integer attribute value.
2906	*
2907	* Returns:
2908	* zero on success
2909	* -EINVAL if val is invalid
2910	**/
2911	#define lpfc_vport_param_set(attr, default, minval, maxval) \
2912	static int \
2913	lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
2914	{ \
2915	if (lpfc_rangecheck(val, minval, maxval)) {\
2916	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2917	"3053 lpfc_" #attr \
2918	" changed from %d (x%x) to %d (x%x)\n", \
2919	vport->cfg_##attr, vport->cfg_##attr, \
2920	val, val); \
2921	vport->cfg_##attr = val;\
2922	return 0;\
2923	}\
2924	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2925	"0424 lpfc_"#attr" attribute cannot be set to %d, "\
2926	"allowed range is ["#minval", "#maxval"]\n", val); \
2927	return -EINVAL;\
2928	}
2929
2930	/*
2931	* lpfc_vport_param_store - Set a vport attribute
2932	*
2933	* Description:
2934	* Macro that given an attr e.g. hba_queue_depth
2935	* expands into a function with the name lpfc_hba_queue_depth_store
2936	*
2937	* lpfc_##attr##_store: convert the ascii text number to an integer, then
2938	* use the lpfc_##attr##_set function to set the value.
2939	* @cdev: class device that is converted into a Scsi_host.
2940	* @buf: contains the attribute value in decimal.
2941	* @count: not used.
2942	*
2943	* Returns:
2944	* -EINVAL if val is invalid or lpfc_##attr##_set() fails
2945	* length of buffer upon success.
2946	**/
2947	#define lpfc_vport_param_store(attr) \
2948	static ssize_t \
2949	lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
2950	const char *buf, size_t count) \
2951	{ \
2952	struct Scsi_Host *shost = class_to_shost(dev);\
2953	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2954	uint val = 0;\
2955	if (!isdigit(buf[0]))\
2956	return -EINVAL;\
2957	if (sscanf(buf, "%i", &val) != 1)\
2958	return -EINVAL;\
2959	if (lpfc_##attr##_set(vport, val) == 0) \
2960	return strlen(buf);\
2961	else \
2962	return -EINVAL;\
2963	}
2964
2965
2966	static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL);
2967	static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL);
2968	static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
2969	static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
2970	static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
2971	static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
2972	static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
2973	static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
2974	static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
2975	static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
2976	static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
2977	static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
2978	static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
2979	static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
2980	static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
2981	lpfc_link_state_store);
2982	static DEVICE_ATTR(option_rom_version, S_IRUGO,
2983	lpfc_option_rom_version_show, NULL);
2984	static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
2985	lpfc_num_discovered_ports_show, NULL);
2986	static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
2987	static DEVICE_ATTR_RO(lpfc_drvr_version);
2988	static DEVICE_ATTR_RO(lpfc_enable_fip);
2989	static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
2990	lpfc_board_mode_show, lpfc_board_mode_store);
2991	static DEVICE_ATTR_RO(lpfc_xcvr_data);
2992	static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
2993	static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
2994	static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
2995	static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
2996	static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
2997	static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
2998	static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
2999	static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
3000	static DEVICE_ATTR_RO(lpfc_temp_sensor);
3001	static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn);
3002	static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
3003	static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
3004	NULL);
3005	static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL);
3006
3007	#define WWN_SZ 8
3008	/**
3009	* lpfc_wwn_set - Convert string to the 8 byte WWN value.
3010	* @buf: WWN string.
3011	* @cnt: Length of string.
3012	* @wwn: Array to receive converted wwn value.
3013	*
3014	* Returns:
3015	* -EINVAL if the buffer does not contain a valid wwn
3016	* 0 success
3017	**/
3018	static size_t
3019	lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
3020	{
3021	unsigned int i, j;
3022
3023	/* Count may include a LF at end of string */
3024	if (buf[cnt-1] == '\n')
3025	cnt--;
3026
3027	if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
3028	((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
3029	return -EINVAL;
3030
3031	memset(wwn, 0, WWN_SZ);
3032
3033	/* Validate and store the new name */
3034	for (i = 0, j = 0; i < 16; i++) {
3035	if ((*buf >= 'a') && (*buf <= 'f'))
3036	j = ((j << 4) | ((*buf++ - 'a') + 10));
3037	else if ((*buf >= 'A') && (*buf <= 'F'))
3038	j = ((j << 4) | ((*buf++ - 'A') + 10));
3039	else if ((*buf >= '0') && (*buf <= '9'))
3040	j = ((j << 4) | (*buf++ - '0'));
3041	else
3042	return -EINVAL;
3043	if (i % 2) {
3044	wwn[i/2] = j & 0xff;
3045	j = 0;
3046	}
3047	}
3048	return 0;
3049	}
3050
3051
3052	/**
3053	* lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
3054	* Optimized Access Storage (OAS) operations.
3055	* @dev: class device that is converted into a Scsi_host.
3056	* @attr: device attribute, not used.
3057	* @buf: buffer for passing information.
3058	*
3059	* Returns:
3060	* value of count
3061	**/
3062	static ssize_t
3063	lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
3064	char *buf)
3065	{
3066	struct Scsi_Host *shost = class_to_shost(dev);
3067	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3068
3069	return scnprintf(buf, PAGE_SIZE, fmt: "0x%llx\n",
3070	wwn_to_u64(wwn: phba->cfg_oas_tgt_wwpn));
3071	}
3072
3073	/**
3074	* lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
3075	* Optimized Access Storage (OAS) operations.
3076	* @dev: class device that is converted into a Scsi_host.
3077	* @attr: device attribute, not used.
3078	* @buf: buffer for passing information.
3079	* @count: Size of the data buffer.
3080	*
3081	* Returns:
3082	* -EINVAL count is invalid, invalid wwpn byte invalid
3083	* -EPERM oas is not supported by hba
3084	* value of count on success
3085	**/
3086	static ssize_t
3087	lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
3088	const char *buf, size_t count)
3089	{
3090	struct Scsi_Host *shost = class_to_shost(dev);
3091	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3092	unsigned int cnt = count;
3093	uint8_t wwpn[WWN_SZ];
3094	int rc;
3095
3096	if (!phba->cfg_fof)
3097	return -EPERM;
3098
3099	/* count may include a LF at end of string */
3100	if (buf[cnt-1] == '\n')
3101	cnt--;
3102
3103	rc = lpfc_wwn_set(buf, cnt, wwn: wwpn);
3104	if (rc)
3105	return rc;
3106
3107	memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3108	memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3109	if (wwn_to_u64(wwn: wwpn) == 0)
3110	phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
3111	else
3112	phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
3113	phba->cfg_oas_flags &= ~OAS_LUN_VALID;
3114	phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
3115	return count;
3116	}
3117	static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
3118	lpfc_oas_tgt_show, lpfc_oas_tgt_store);
3119
3120	/**
3121	* lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for
3122	* Optimized Access Storage (OAS) operations.
3123	* @dev: class device that is converted into a Scsi_host.
3124	* @attr: device attribute, not used.
3125	* @buf: buffer for passing information.
3126	*
3127	* Returns:
3128	* value of count
3129	**/
3130	static ssize_t
3131	lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr,
3132	char *buf)
3133	{
3134	struct Scsi_Host *shost = class_to_shost(dev);
3135	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3136
3137	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", phba->cfg_oas_priority);
3138	}
3139
3140	/**
3141	* lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for
3142	* Optimized Access Storage (OAS) operations.
3143	* @dev: class device that is converted into a Scsi_host.
3144	* @attr: device attribute, not used.
3145	* @buf: buffer for passing information.
3146	* @count: Size of the data buffer.
3147	*
3148	* Returns:
3149	* -EINVAL count is invalid, invalid wwpn byte invalid
3150	* -EPERM oas is not supported by hba
3151	* value of count on success
3152	**/
3153	static ssize_t
3154	lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr,
3155	const char *buf, size_t count)
3156	{
3157	struct Scsi_Host *shost = class_to_shost(dev);
3158	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3159	unsigned int cnt = count;
3160	unsigned long val;
3161	int ret;
3162
3163	if (!phba->cfg_fof)
3164	return -EPERM;
3165
3166	/* count may include a LF at end of string */
3167	if (buf[cnt-1] == '\n')
3168	cnt--;
3169
3170	ret = kstrtoul(s: buf, base: 0, res: &val);
3171	if (ret || (val > 0x7f))
3172	return -EINVAL;
3173
3174	if (val)
3175	phba->cfg_oas_priority = (uint8_t)val;
3176	else
3177	phba->cfg_oas_priority = phba->cfg_XLanePriority;
3178	return count;
3179	}
3180	static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR,
3181	lpfc_oas_priority_show, lpfc_oas_priority_store);
3182
3183	/**
3184	* lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
3185	* for Optimized Access Storage (OAS) operations.
3186	* @dev: class device that is converted into a Scsi_host.
3187	* @attr: device attribute, not used.
3188	* @buf: buffer for passing information.
3189	*
3190	* Returns:
3191	* value of count on success
3192	**/
3193	static ssize_t
3194	lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
3195	char *buf)
3196	{
3197	struct Scsi_Host *shost = class_to_shost(dev);
3198	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3199
3200	return scnprintf(buf, PAGE_SIZE, fmt: "0x%llx\n",
3201	wwn_to_u64(wwn: phba->cfg_oas_vpt_wwpn));
3202	}
3203
3204	/**
3205	* lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
3206	* for Optimized Access Storage (OAS) operations.
3207	* @dev: class device that is converted into a Scsi_host.
3208	* @attr: device attribute, not used.
3209	* @buf: buffer for passing information.
3210	* @count: Size of the data buffer.
3211	*
3212	* Returns:
3213	* -EINVAL count is invalid, invalid wwpn byte invalid
3214	* -EPERM oas is not supported by hba
3215	* value of count on success
3216	**/
3217	static ssize_t
3218	lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
3219	const char *buf, size_t count)
3220	{
3221	struct Scsi_Host *shost = class_to_shost(dev);
3222	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3223	unsigned int cnt = count;
3224	uint8_t wwpn[WWN_SZ];
3225	int rc;
3226
3227	if (!phba->cfg_fof)
3228	return -EPERM;
3229
3230	/* count may include a LF at end of string */
3231	if (buf[cnt-1] == '\n')
3232	cnt--;
3233
3234	rc = lpfc_wwn_set(buf, cnt, wwn: wwpn);
3235	if (rc)
3236	return rc;
3237
3238	memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3239	memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3240	if (wwn_to_u64(wwn: wwpn) == 0)
3241	phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
3242	else
3243	phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
3244	phba->cfg_oas_flags &= ~OAS_LUN_VALID;
3245	if (phba->cfg_oas_priority == 0)
3246	phba->cfg_oas_priority = phba->cfg_XLanePriority;
3247	phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
3248	return count;
3249	}
3250	static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
3251	lpfc_oas_vpt_show, lpfc_oas_vpt_store);
3252
3253	/**
3254	* lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
3255	* of whether luns will be enabled or disabled
3256	* for Optimized Access Storage (OAS) operations.
3257	* @dev: class device that is converted into a Scsi_host.
3258	* @attr: device attribute, not used.
3259	* @buf: buffer for passing information.
3260	*
3261	* Returns:
3262	* size of formatted string.
3263	**/
3264	static ssize_t
3265	lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
3266	char *buf)
3267	{
3268	struct Scsi_Host *shost = class_to_shost(dev);
3269	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3270
3271	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", phba->cfg_oas_lun_state);
3272	}
3273
3274	/**
3275	* lpfc_oas_lun_state_store - Store the state (enabled or disabled)
3276	* of whether luns will be enabled or disabled
3277	* for Optimized Access Storage (OAS) operations.
3278	* @dev: class device that is converted into a Scsi_host.
3279	* @attr: device attribute, not used.
3280	* @buf: buffer for passing information.
3281	* @count: Size of the data buffer.
3282	*
3283	* Returns:
3284	* -EINVAL count is invalid, invalid wwpn byte invalid
3285	* -EPERM oas is not supported by hba
3286	* value of count on success
3287	**/
3288	static ssize_t
3289	lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
3290	const char *buf, size_t count)
3291	{
3292	struct Scsi_Host *shost = class_to_shost(dev);
3293	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3294	int val = 0;
3295
3296	if (!phba->cfg_fof)
3297	return -EPERM;
3298
3299	if (!isdigit(c: buf[0]))
3300	return -EINVAL;
3301
3302	if (sscanf(buf, "%i", &val) != 1)
3303	return -EINVAL;
3304
3305	if ((val != 0) && (val != 1))
3306	return -EINVAL;
3307
3308	phba->cfg_oas_lun_state = val;
3309	return strlen(buf);
3310	}
3311	static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
3312	lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
3313
3314	/**
3315	* lpfc_oas_lun_status_show - Return the status of the Optimized Access
3316	* Storage (OAS) lun returned by the
3317	* lpfc_oas_lun_show function.
3318	* @dev: class device that is converted into a Scsi_host.
3319	* @attr: device attribute, not used.
3320	* @buf: buffer for passing information.
3321	*
3322	* Returns:
3323	* size of formatted string.
3324	**/
3325	static ssize_t
3326	lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
3327	char *buf)
3328	{
3329	struct Scsi_Host *shost = class_to_shost(dev);
3330	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3331
3332	if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
3333	return -EFAULT;
3334
3335	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", phba->cfg_oas_lun_status);
3336	}
3337	static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
3338	lpfc_oas_lun_status_show, NULL);
3339
3340
3341	/**
3342	* lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
3343	* (OAS) operations.
3344	* @phba: lpfc_hba pointer.
3345	* @vpt_wwpn: wwpn of the vport associated with the returned lun
3346	* @tgt_wwpn: wwpn of the target associated with the returned lun
3347	* @lun: the fc lun for setting oas state.
3348	* @oas_state: the oas state to be set to the lun.
3349	* @pri: priority
3350	*
3351	* Returns:
3352	* SUCCESS : 0
3353	* -EPERM OAS is not enabled or not supported by this port.
3354	*
3355	*/
3356	static size_t
3357	lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3358	uint8_t tgt_wwpn[], uint64_t lun,
3359	uint32_t oas_state, uint8_t pri)
3360	{
3361
3362	int rc = 0;
3363
3364	if (!phba->cfg_fof)
3365	return -EPERM;
3366
3367	if (oas_state) {
3368	if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
3369	(struct lpfc_name *)tgt_wwpn,
3370	lun, pri))
3371	rc = -ENOMEM;
3372	} else {
3373	lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
3374	(struct lpfc_name *)tgt_wwpn, lun, pri);
3375	}
3376	return rc;
3377
3378	}
3379
3380	/**
3381	* lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
3382	* Access Storage (OAS) operations.
3383	* @phba: lpfc_hba pointer.
3384	* @vpt_wwpn: wwpn of the vport associated with the returned lun
3385	* @tgt_wwpn: wwpn of the target associated with the returned lun
3386	* @lun_status: status of the lun returned lun
3387	* @lun_pri: priority of the lun returned lun
3388	*
3389	* Returns the first or next lun enabled for OAS operations for the vport/target
3390	* specified. If a lun is found, its vport wwpn, target wwpn and status is
3391	* returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
3392	*
3393	* Return:
3394	* lun that is OAS enabled for the vport/target
3395	* NOT_OAS_ENABLED_LUN when no oas enabled lun found.
3396	*/
3397	static uint64_t
3398	lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3399	uint8_t tgt_wwpn[], uint32_t *lun_status,
3400	uint32_t *lun_pri)
3401	{
3402	uint64_t found_lun;
3403
3404	if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
3405	return NOT_OAS_ENABLED_LUN;
3406	if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
3407	phba->sli4_hba.oas_next_vpt_wwpn,
3408	(struct lpfc_name *)
3409	phba->sli4_hba.oas_next_tgt_wwpn,
3410	&phba->sli4_hba.oas_next_lun,
3411	(struct lpfc_name *)vpt_wwpn,
3412	(struct lpfc_name *)tgt_wwpn,
3413	&found_lun, lun_status, lun_pri))
3414	return found_lun;
3415	else
3416	return NOT_OAS_ENABLED_LUN;
3417	}
3418
3419	/**
3420	* lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
3421	* @phba: lpfc_hba pointer.
3422	* @vpt_wwpn: vport wwpn by reference.
3423	* @tgt_wwpn: target wwpn by reference.
3424	* @lun: the fc lun for setting oas state.
3425	* @oas_state: the oas state to be set to the oas_lun.
3426	* @pri: priority
3427	*
3428	* This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
3429	* a lun for OAS operations.
3430	*
3431	* Return:
3432	* SUCCESS: 0
3433	* -ENOMEM: failed to enable an lun for OAS operations
3434	* -EPERM: OAS is not enabled
3435	*/
3436	static ssize_t
3437	lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3438	uint8_t tgt_wwpn[], uint64_t lun,
3439	uint32_t oas_state, uint8_t pri)
3440	{
3441
3442	int rc;
3443
3444	rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
3445	oas_state, pri);
3446	return rc;
3447	}
3448
3449	/**
3450	* lpfc_oas_lun_show - Return oas enabled luns from a chosen target
3451	* @dev: class device that is converted into a Scsi_host.
3452	* @attr: device attribute, not used.
3453	* @buf: buffer for passing information.
3454	*
3455	* This routine returns a lun enabled for OAS each time the function
3456	* is called.
3457	*
3458	* Returns:
3459	* SUCCESS: size of formatted string.
3460	* -EFAULT: target or vport wwpn was not set properly.
3461	* -EPERM: oas is not enabled.
3462	**/
3463	static ssize_t
3464	lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
3465	char *buf)
3466	{
3467	struct Scsi_Host *shost = class_to_shost(dev);
3468	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3469
3470	uint64_t oas_lun;
3471	int len = 0;
3472
3473	if (!phba->cfg_fof)
3474	return -EPERM;
3475
3476	if (wwn_to_u64(wwn: phba->cfg_oas_vpt_wwpn) == 0)
3477	if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
3478	return -EFAULT;
3479
3480	if (wwn_to_u64(wwn: phba->cfg_oas_tgt_wwpn) == 0)
3481	if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
3482	return -EFAULT;
3483
3484	oas_lun = lpfc_oas_lun_get_next(phba, vpt_wwpn: phba->cfg_oas_vpt_wwpn,
3485	tgt_wwpn: phba->cfg_oas_tgt_wwpn,
3486	lun_status: &phba->cfg_oas_lun_status,
3487	lun_pri: &phba->cfg_oas_priority);
3488	if (oas_lun != NOT_OAS_ENABLED_LUN)
3489	phba->cfg_oas_flags |= OAS_LUN_VALID;
3490
3491	len += scnprintf(buf: buf + len, PAGE_SIZE-len, fmt: "0x%llx", oas_lun);
3492
3493	return len;
3494	}
3495
3496	/**
3497	* lpfc_oas_lun_store - Sets the OAS state for lun
3498	* @dev: class device that is converted into a Scsi_host.
3499	* @attr: device attribute, not used.
3500	* @buf: buffer for passing information.
3501	* @count: size of the formatting string
3502	*
3503	* This function sets the OAS state for lun. Before this function is called,
3504	* the vport wwpn, target wwpn, and oas state need to be set.
3505	*
3506	* Returns:
3507	* SUCCESS: size of formatted string.
3508	* -EFAULT: target or vport wwpn was not set properly.
3509	* -EPERM: oas is not enabled.
3510	* size of formatted string.
3511	**/
3512	static ssize_t
3513	lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
3514	const char *buf, size_t count)
3515	{
3516	struct Scsi_Host *shost = class_to_shost(dev);
3517	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3518	uint64_t scsi_lun;
3519	uint32_t pri;
3520	ssize_t rc;
3521
3522	if (!phba->cfg_fof)
3523	return -EPERM;
3524
3525	if (wwn_to_u64(wwn: phba->cfg_oas_vpt_wwpn) == 0)
3526	return -EFAULT;
3527
3528	if (wwn_to_u64(wwn: phba->cfg_oas_tgt_wwpn) == 0)
3529	return -EFAULT;
3530
3531	if (!isdigit(c: buf[0]))
3532	return -EINVAL;
3533
3534	if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
3535	return -EINVAL;
3536
3537	pri = phba->cfg_oas_priority;
3538	if (pri == 0)
3539	pri = phba->cfg_XLanePriority;
3540
3541	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3542	"3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx "
3543	"priority 0x%x with oas state %d\n",
3544	wwn_to_u64(phba->cfg_oas_vpt_wwpn),
3545	wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
3546	pri, phba->cfg_oas_lun_state);
3547
3548	rc = lpfc_oas_lun_state_change(phba, vpt_wwpn: phba->cfg_oas_vpt_wwpn,
3549	tgt_wwpn: phba->cfg_oas_tgt_wwpn, lun: scsi_lun,
3550	oas_state: phba->cfg_oas_lun_state, pri);
3551	if (rc)
3552	return rc;
3553
3554	return count;
3555	}
3556	static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
3557	lpfc_oas_lun_show, lpfc_oas_lun_store);
3558
3559	int lpfc_enable_nvmet_cnt;
3560	unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = {
3561	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
3562	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
3563	module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444);
3564	MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target");
3565
3566	static int lpfc_poll = 0;
3567	module_param(lpfc_poll, int, S_IRUGO);
3568	MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
3569	" 0 - none,"
3570	" 1 - poll with interrupts enabled"
3571	" 3 - poll and disable FCP ring interrupts");
3572
3573	static DEVICE_ATTR_RW(lpfc_poll);
3574
3575	int lpfc_no_hba_reset_cnt;
3576	unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = {
3577	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
3578	module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444);
3579	MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset");
3580
3581	LPFC_ATTR(sli_mode, 3, 3, 3,
3582	"SLI mode selector: 3 - select SLI-3");
3583
3584	LPFC_ATTR_R(enable_npiv, 1, 0, 1,
3585	"Enable NPIV functionality");
3586
3587	LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
3588	"FCF Fast failover=1 Priority failover=2");
3589
3590	/*
3591	* lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of
3592	* aborted IO.
3593	* The range is [0,1]. Default value is 0
3594	* 0, IO completes after ABTS issued (default).
3595	* 1, IO completes after receipt of ABTS response or timeout.
3596	*/
3597	LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion");
3598
3599	/*
3600	# lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
3601	# 0x0 = disabled, XRI/OXID use not tracked.
3602	# 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
3603	# 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
3604	*/
3605	LPFC_ATTR_R(enable_rrq, 2, 0, 2,
3606	"Enable RRQ functionality");
3607
3608	/*
3609	# lpfc_suppress_link_up: Bring link up at initialization
3610	# 0x0 = bring link up (issue MBX_INIT_LINK)
3611	# 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
3612	# 0x2 = never bring up link
3613	# Default value is 0.
3614	*/
3615	LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
3616	LPFC_DELAY_INIT_LINK_INDEFINITELY,
3617	"Suppress Link Up at initialization");
3618
3619	static ssize_t
3620	lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf)
3621	{
3622	struct Scsi_Host *shost = class_to_shost(dev);
3623	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3624
3625	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
3626	phba->sli4_hba.pc_sli4_params.pls);
3627	}
3628	static DEVICE_ATTR(pls, 0444,
3629	lpfc_pls_show, NULL);
3630
3631	static ssize_t
3632	lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf)
3633	{
3634	struct Scsi_Host *shost = class_to_shost(dev);
3635	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3636
3637	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
3638	(phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0);
3639	}
3640	static DEVICE_ATTR(pt, 0444,
3641	lpfc_pt_show, NULL);
3642
3643	/*
3644	# lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
3645	# 1 - (1024)
3646	# 2 - (2048)
3647	# 3 - (3072)
3648	# 4 - (4096)
3649	# 5 - (5120)
3650	*/
3651	static ssize_t
3652	lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
3653	{
3654	struct Scsi_Host *shost = class_to_shost(dev);
3655	struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3656
3657	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", phba->iocb_max);
3658	}
3659
3660	static DEVICE_ATTR(iocb_hw, S_IRUGO,
3661	lpfc_iocb_hw_show, NULL);
3662	static ssize_t
3663	lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
3664	{
3665	struct Scsi_Host *shost = class_to_shost(dev);
3666	struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3667	struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
3668
3669	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
3670	pring ? pring->txq_max : 0);
3671	}
3672
3673	static DEVICE_ATTR(txq_hw, S_IRUGO,
3674	lpfc_txq_hw_show, NULL);
3675	static ssize_t
3676	lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
3677	char *buf)
3678	{
3679	struct Scsi_Host *shost = class_to_shost(dev);
3680	struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3681	struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
3682
3683	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n",
3684	pring ? pring->txcmplq_max : 0);
3685	}
3686
3687	static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
3688	lpfc_txcmplq_hw_show, NULL);
3689
3690	/*
3691	# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
3692	# until the timer expires. Value range is [0,255]. Default value is 30.
3693	*/
3694	static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
3695	static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
3696	module_param(lpfc_nodev_tmo, int, 0);
3697	MODULE_PARM_DESC(lpfc_nodev_tmo,
3698	"Seconds driver will hold I/O waiting "
3699	"for a device to come back");
3700
3701	/**
3702	* lpfc_nodev_tmo_show - Return the hba dev loss timeout value
3703	* @dev: class converted to a Scsi_host structure.
3704	* @attr: device attribute, not used.
3705	* @buf: on return contains the dev loss timeout in decimal.
3706	*
3707	* Returns: size of formatted string.
3708	**/
3709	static ssize_t
3710	lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
3711	char *buf)
3712	{
3713	struct Scsi_Host *shost = class_to_shost(dev);
3714	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3715
3716	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", vport->cfg_devloss_tmo);
3717	}
3718
3719	/**
3720	* lpfc_nodev_tmo_init - Set the hba nodev timeout value
3721	* @vport: lpfc vport structure pointer.
3722	* @val: contains the nodev timeout value.
3723	*
3724	* Description:
3725	* If the devloss tmo is already set then nodev tmo is set to devloss tmo,
3726	* a kernel error message is printed and zero is returned.
3727	* Else if val is in range then nodev tmo and devloss tmo are set to val.
3728	* Otherwise nodev tmo is set to the default value.
3729	*
3730	* Returns:
3731	* zero if already set or if val is in range
3732	* -EINVAL val out of range
3733	**/
3734	static int
3735	lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
3736	{
3737	if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
3738	vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
3739	if (val != LPFC_DEF_DEVLOSS_TMO)
3740	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3741	"0407 Ignoring lpfc_nodev_tmo module "
3742	"parameter because lpfc_devloss_tmo "
3743	"is set.\n");
3744	return 0;
3745	}
3746
3747	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3748	vport->cfg_nodev_tmo = val;
3749	vport->cfg_devloss_tmo = val;
3750	return 0;
3751	}
3752	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3753	"0400 lpfc_nodev_tmo attribute cannot be set to"
3754	" %d, allowed range is [%d, %d]\n",
3755	val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3756	vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
3757	return -EINVAL;
3758	}
3759
3760	/**
3761	* lpfc_update_rport_devloss_tmo - Update dev loss tmo value
3762	* @vport: lpfc vport structure pointer.
3763	*
3764	* Description:
3765	* Update all the ndlp's dev loss tmo with the vport devloss tmo value.
3766	**/
3767	static void
3768	lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
3769	{
3770	struct lpfc_nodelist *ndlp;
3771	unsigned long iflags;
3772	#if (IS_ENABLED(CONFIG_NVME_FC))
3773	struct lpfc_nvme_rport *rport;
3774	struct nvme_fc_remote_port *remoteport = NULL;
3775	#endif
3776
3777	spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);
3778	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3779	if (ndlp->rport)
3780	ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
3781	#if (IS_ENABLED(CONFIG_NVME_FC))
3782	spin_lock(lock: &ndlp->lock);
3783	rport = lpfc_ndlp_get_nrport(ndlp);
3784	if (rport)
3785	remoteport = rport->remoteport;
3786	spin_unlock(lock: &ndlp->lock);
3787	if (rport && remoteport)
3788	nvme_fc_set_remoteport_devloss(remoteport,
3789	dev_loss_tmo: vport->cfg_devloss_tmo);
3790	#endif
3791	}
3792	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock, flags: iflags);
3793	}
3794
3795	/**
3796	* lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
3797	* @vport: lpfc vport structure pointer.
3798	* @val: contains the tmo value.
3799	*
3800	* Description:
3801	* If the devloss tmo is already set or the vport dev loss tmo has changed
3802	* then a kernel error message is printed and zero is returned.
3803	* Else if val is in range then nodev tmo and devloss tmo are set to val.
3804	* Otherwise nodev tmo is set to the default value.
3805	*
3806	* Returns:
3807	* zero if already set or if val is in range
3808	* -EINVAL val out of range
3809	**/
3810	static int
3811	lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
3812	{
3813	if (vport->dev_loss_tmo_changed ||
3814	(lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
3815	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3816	"0401 Ignoring change to lpfc_nodev_tmo "
3817	"because lpfc_devloss_tmo is set.\n");
3818	return 0;
3819	}
3820	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3821	vport->cfg_nodev_tmo = val;
3822	vport->cfg_devloss_tmo = val;
3823	/*
3824	* For compat: set the fc_host dev loss so new rports
3825	* will get the value.
3826	*/
3827	fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3828	lpfc_update_rport_devloss_tmo(vport);
3829	return 0;
3830	}
3831	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3832	"0403 lpfc_nodev_tmo attribute cannot be set to "
3833	"%d, allowed range is [%d, %d]\n",
3834	val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3835	return -EINVAL;
3836	}
3837
3838	lpfc_vport_param_store(nodev_tmo)
3839
3840	static DEVICE_ATTR_RW(lpfc_nodev_tmo);
3841
3842	/*
3843	# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
3844	# disappear until the timer expires. Value range is [0,255]. Default
3845	# value is 30.
3846	*/
3847	module_param(lpfc_devloss_tmo, int, S_IRUGO);
3848	MODULE_PARM_DESC(lpfc_devloss_tmo,
3849	"Seconds driver will hold I/O waiting "
3850	"for a device to come back");
3851	lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3852	LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3853	lpfc_vport_param_show(devloss_tmo)
3854
3855	/**
3856	* lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3857	* @vport: lpfc vport structure pointer.
3858	* @val: contains the tmo value.
3859	*
3860	* Description:
3861	* If val is in a valid range then set the vport nodev tmo,
3862	* devloss tmo, also set the vport dev loss tmo changed flag.
3863	* Else a kernel error message is printed.
3864	*
3865	* Returns:
3866	* zero if val is in range
3867	* -EINVAL val out of range
3868	**/
3869	static int
3870	lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3871	{
3872	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3873	vport->cfg_nodev_tmo = val;
3874	vport->cfg_devloss_tmo = val;
3875	vport->dev_loss_tmo_changed = 1;
3876	fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3877	lpfc_update_rport_devloss_tmo(vport);
3878	return 0;
3879	}
3880
3881	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3882	"0404 lpfc_devloss_tmo attribute cannot be set to "
3883	"%d, allowed range is [%d, %d]\n",
3884	val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3885	return -EINVAL;
3886	}
3887
3888	lpfc_vport_param_store(devloss_tmo)
3889	static DEVICE_ATTR_RW(lpfc_devloss_tmo);
3890
3891	/*
3892	* lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it
3893	* lpfc_suppress_rsp = 0 Disable
3894	* lpfc_suppress_rsp = 1 Enable (default)
3895	*
3896	*/
3897	LPFC_ATTR_R(suppress_rsp, 1, 0, 1,
3898	"Enable suppress rsp feature is firmware supports it");
3899
3900	/*
3901	* lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds
3902	* lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs
3903	* lpfc_nvmet_mrq = 1 use a single RQ pair
3904	* lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ
3905	*
3906	*/
3907	LPFC_ATTR_R(nvmet_mrq,
3908	LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX,
3909	"Specify number of RQ pairs for processing NVMET cmds");
3910
3911	/*
3912	* lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post
3913	* to each NVMET RQ. Range 64 to 2048, default is 512.
3914	*/
3915	LPFC_ATTR_R(nvmet_mrq_post,
3916	LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST,
3917	LPFC_NVMET_RQE_DEF_COUNT,
3918	"Specify number of RQ buffers to initially post");
3919
3920	/*
3921	* lpfc_enable_fc4_type: Defines what FC4 types are supported.
3922	* Supported Values: 1 - register just FCP
3923	* 3 - register both FCP and NVME
3924	* Supported values are [1,3]. Default value is 3
3925	*/
3926	LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE,
3927	LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE,
3928	"Enable FC4 Protocol support - FCP / NVME");
3929
3930	/*
3931	# lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3932	# deluged with LOTS of information.
3933	# You can set a bit mask to record specific types of verbose messages:
3934	# See lpfc_logmsh.h for definitions.
3935	*/
3936	LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3937	"Verbose logging bit-mask");
3938
3939	/*
3940	# lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3941	# objects that have been registered with the nameserver after login.
3942	*/
3943	LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3944	"Deregister nameserver objects before LOGO");
3945
3946	/*
3947	# lun_queue_depth: This parameter is used to limit the number of outstanding
3948	# commands per FCP LUN.
3949	*/
3950	LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512,
3951	"Max number of FCP commands we can queue to a specific LUN");
3952
3953	/*
3954	# tgt_queue_depth: This parameter is used to limit the number of outstanding
3955	# commands per target port. Value range is [10,65535]. Default value is 65535.
3956	*/
3957	static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH;
3958	module_param(lpfc_tgt_queue_depth, uint, 0444);
3959	MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth");
3960	lpfc_vport_param_show(tgt_queue_depth);
3961	lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH,
3962	LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH);
3963
3964	/**
3965	* lpfc_tgt_queue_depth_set: Sets an attribute value.
3966	* @vport: lpfc vport structure pointer.
3967	* @val: integer attribute value.
3968	*
3969	* Description: Sets the parameter to the new value.
3970	*
3971	* Returns:
3972	* zero on success
3973	* -EINVAL if val is invalid
3974	*/
3975	static int
3976	lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val)
3977	{
3978	struct lpfc_nodelist *ndlp;
3979	unsigned long iflags;
3980
3981	if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH))
3982	return -EINVAL;
3983
3984	if (val == vport->cfg_tgt_queue_depth)
3985	return 0;
3986
3987	vport->cfg_tgt_queue_depth = val;
3988
3989	/* Next loop thru nodelist and change cmd_qdepth */
3990	spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);
3991	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
3992	ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3993	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock, flags: iflags);
3994	return 0;
3995	}
3996
3997	lpfc_vport_param_store(tgt_queue_depth);
3998	static DEVICE_ATTR_RW(lpfc_tgt_queue_depth);
3999
4000	/*
4001	# hba_queue_depth: This parameter is used to limit the number of outstanding
4002	# commands per lpfc HBA. Value range is [32,8192]. If this parameter
4003	# value is greater than the maximum number of exchanges supported by the HBA,
4004	# then maximum number of exchanges supported by the HBA is used to determine
4005	# the hba_queue_depth.
4006	*/
4007	LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
4008	"Max number of FCP commands we can queue to a lpfc HBA");
4009
4010	/*
4011	# peer_port_login: This parameter allows/prevents logins
4012	# between peer ports hosted on the same physical port.
4013	# When this parameter is set 0 peer ports of same physical port
4014	# are not allowed to login to each other.
4015	# When this parameter is set 1 peer ports of same physical port
4016	# are allowed to login to each other.
4017	# Default value of this parameter is 0.
4018	*/
4019	LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
4020	"Allow peer ports on the same physical port to login to each "
4021	"other.");
4022
4023	/*
4024	# restrict_login: This parameter allows/prevents logins
4025	# between Virtual Ports and remote initiators.
4026	# When this parameter is not set (0) Virtual Ports will accept PLOGIs from
4027	# other initiators and will attempt to PLOGI all remote ports.
4028	# When this parameter is set (1) Virtual Ports will reject PLOGIs from
4029	# remote ports and will not attempt to PLOGI to other initiators.
4030	# This parameter does not restrict to the physical port.
4031	# This parameter does not restrict logins to Fabric resident remote ports.
4032	# Default value of this parameter is 1.
4033	*/
4034	static int lpfc_restrict_login = 1;
4035	module_param(lpfc_restrict_login, int, S_IRUGO);
4036	MODULE_PARM_DESC(lpfc_restrict_login,
4037	"Restrict virtual ports login to remote initiators.");
4038	lpfc_vport_param_show(restrict_login);
4039
4040	/**
4041	* lpfc_restrict_login_init - Set the vport restrict login flag
4042	* @vport: lpfc vport structure pointer.
4043	* @val: contains the restrict login value.
4044	*
4045	* Description:
4046	* If val is not in a valid range then log a kernel error message and set
4047	* the vport restrict login to one.
4048	* If the port type is physical clear the restrict login flag and return.
4049	* Else set the restrict login flag to val.
4050	*
4051	* Returns:
4052	* zero if val is in range
4053	* -EINVAL val out of range
4054	**/
4055	static int
4056	lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
4057	{
4058	if (val < 0 || val > 1) {
4059	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4060	"0422 lpfc_restrict_login attribute cannot "
4061	"be set to %d, allowed range is [0, 1]\n",
4062	val);
4063	vport->cfg_restrict_login = 1;
4064	return -EINVAL;
4065	}
4066	if (vport->port_type == LPFC_PHYSICAL_PORT) {
4067	vport->cfg_restrict_login = 0;
4068	return 0;
4069	}
4070	vport->cfg_restrict_login = val;
4071	return 0;
4072	}
4073
4074	/**
4075	* lpfc_restrict_login_set - Set the vport restrict login flag
4076	* @vport: lpfc vport structure pointer.
4077	* @val: contains the restrict login value.
4078	*
4079	* Description:
4080	* If val is not in a valid range then log a kernel error message and set
4081	* the vport restrict login to one.
4082	* If the port type is physical and the val is not zero log a kernel
4083	* error message, clear the restrict login flag and return zero.
4084	* Else set the restrict login flag to val.
4085	*
4086	* Returns:
4087	* zero if val is in range
4088	* -EINVAL val out of range
4089	**/
4090	static int
4091	lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
4092	{
4093	if (val < 0 || val > 1) {
4094	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4095	"0425 lpfc_restrict_login attribute cannot "
4096	"be set to %d, allowed range is [0, 1]\n",
4097	val);
4098	vport->cfg_restrict_login = 1;
4099	return -EINVAL;
4100	}
4101	if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
4102	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4103	"0468 lpfc_restrict_login must be 0 for "
4104	"Physical ports.\n");
4105	vport->cfg_restrict_login = 0;
4106	return 0;
4107	}
4108	vport->cfg_restrict_login = val;
4109	return 0;
4110	}
4111	lpfc_vport_param_store(restrict_login);
4112	static DEVICE_ATTR_RW(lpfc_restrict_login);
4113
4114	/*
4115	# Some disk devices have a "select ID" or "select Target" capability.
4116	# From a protocol standpoint "select ID" usually means select the
4117	# Fibre channel "ALPA". In the FC-AL Profile there is an "informative
4118	# annex" which contains a table that maps a "select ID" (a number
4119	# between 0 and 7F) to an ALPA. By default, for compatibility with
4120	# older drivers, the lpfc driver scans this table from low ALPA to high
4121	# ALPA.
4122	#
4123	# Turning on the scan-down variable (on = 1, off = 0) will
4124	# cause the lpfc driver to use an inverted table, effectively
4125	# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
4126	#
4127	# (Note: This "select ID" functionality is a LOOP ONLY characteristic
4128	# and will not work across a fabric. Also this parameter will take
4129	# effect only in the case when ALPA map is not available.)
4130	*/
4131	LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
4132	"Start scanning for devices from highest ALPA to lowest");
4133
4134	/*
4135	# lpfc_topology: link topology for init link
4136	# 0x0 = attempt loop mode then point-to-point
4137	# 0x01 = internal loopback mode
4138	# 0x02 = attempt point-to-point mode only
4139	# 0x04 = attempt loop mode only
4140	# 0x06 = attempt point-to-point mode then loop
4141	# Set point-to-point mode if you want to run as an N_Port.
4142	# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
4143	# Default value is 0.
4144	*/
4145	LPFC_ATTR(topology, 0, 0, 6,
4146	"Select Fibre Channel topology");
4147
4148	/**
4149	* lpfc_topology_store - Set the adapters topology field
4150	* @dev: class device that is converted into a scsi_host.
4151	* @attr:device attribute, not used.
4152	* @buf: buffer for passing information.
4153	* @count: size of the data buffer.
4154	*
4155	* Description:
4156	* If val is in a valid range then set the adapter's topology field and
4157	* issue a lip; if the lip fails reset the topology to the old value.
4158	*
4159	* If the value is not in range log a kernel error message and return an error.
4160	*
4161	* Returns:
4162	* zero if val is in range and lip okay
4163	* non-zero return value from lpfc_issue_lip()
4164	* -EINVAL val out of range
4165	**/
4166	static ssize_t
4167	lpfc_topology_store(struct device *dev, struct device_attribute *attr,
4168	const char *buf, size_t count)
4169	{
4170	struct Scsi_Host *shost = class_to_shost(dev);
4171	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4172	struct lpfc_hba *phba = vport->phba;
4173	int val = 0;
4174	int nolip = 0;
4175	const char *val_buf = buf;
4176	int err;
4177	uint32_t prev_val;
4178	u8 sli_family, if_type;
4179
4180	if (!strncmp(buf, "nolip ", strlen("nolip "))) {
4181	nolip = 1;
4182	val_buf = &buf[strlen("nolip ")];
4183	}
4184
4185	if (!isdigit(c: val_buf[0]))
4186	return -EINVAL;
4187	if (sscanf(val_buf, "%i", &val) != 1)
4188	return -EINVAL;
4189
4190	if (val >= 0 && val <= 6) {
4191	prev_val = phba->cfg_topology;
4192	if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
4193	val == 4) {
4194	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4195	"3113 Loop mode not supported at speed %d\n",
4196	val);
4197	return -EINVAL;
4198	}
4199	/*
4200	* The 'topology' is not a configurable parameter if :
4201	* - persistent topology enabled
4202	* - ASIC_GEN_NUM >= 0xC, with no private loop support
4203	*/
4204	sli_family = bf_get(lpfc_sli_intf_sli_family,
4205	&phba->sli4_hba.sli_intf);
4206	if_type = bf_get(lpfc_sli_intf_if_type,
4207	&phba->sli4_hba.sli_intf);
4208	if ((phba->hba_flag & HBA_PERSISTENT_TOPO ||
4209	(!phba->sli4_hba.pc_sli4_params.pls &&
4210	(sli_family == LPFC_SLI_INTF_FAMILY_G6 ||
4211	if_type == LPFC_SLI_INTF_IF_TYPE_6))) &&
4212	val == 4) {
4213	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4214	"3114 Loop mode not supported\n");
4215	return -EINVAL;
4216	}
4217	phba->cfg_topology = val;
4218	if (nolip)
4219	return strlen(buf);
4220
4221	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4222	"3054 lpfc_topology changed from %d to %d\n",
4223	prev_val, val);
4224	if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
4225	phba->fc_topology_changed = 1;
4226	err = lpfc_issue_lip(shost: lpfc_shost_from_vport(vport: phba->pport));
4227	if (err) {
4228	phba->cfg_topology = prev_val;
4229	return -EINVAL;
4230	} else
4231	return strlen(buf);
4232	}
4233	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4234	"%d:0467 lpfc_topology attribute cannot be set to %d, "
4235	"allowed range is [0, 6]\n",
4236	phba->brd_no, val);
4237	return -EINVAL;
4238	}
4239
4240	lpfc_param_show(topology)
4241	static DEVICE_ATTR_RW(lpfc_topology);
4242
4243	/**
4244	* lpfc_static_vport_show: Read callback function for
4245	* lpfc_static_vport sysfs file.
4246	* @dev: Pointer to class device object.
4247	* @attr: device attribute structure.
4248	* @buf: Data buffer.
4249	*
4250	* This function is the read call back function for
4251	* lpfc_static_vport sysfs file. The lpfc_static_vport
4252	* sysfs file report the mageability of the vport.
4253	**/
4254	static ssize_t
4255	lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
4256	char *buf)
4257	{
4258	struct Scsi_Host *shost = class_to_shost(dev);
4259	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4260	if (vport->vport_flag & STATIC_VPORT)
4261	sprintf(buf, fmt: "1\n");
4262	else
4263	sprintf(buf, fmt: "0\n");
4264
4265	return strlen(buf);
4266	}
4267
4268	/*
4269	* Sysfs attribute to control the statistical data collection.
4270	*/
4271	static DEVICE_ATTR_RO(lpfc_static_vport);
4272
4273	/*
4274	# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
4275	# connection.
4276	# Value range is [0,16]. Default value is 0.
4277	*/
4278	/**
4279	* lpfc_link_speed_store - Set the adapters link speed
4280	* @dev: Pointer to class device.
4281	* @attr: Unused.
4282	* @buf: Data buffer.
4283	* @count: Size of the data buffer.
4284	*
4285	* Description:
4286	* If val is in a valid range then set the adapter's link speed field and
4287	* issue a lip; if the lip fails reset the link speed to the old value.
4288	*
4289	* Notes:
4290	* If the value is not in range log a kernel error message and return an error.
4291	*
4292	* Returns:
4293	* zero if val is in range and lip okay.
4294	* non-zero return value from lpfc_issue_lip()
4295	* -EINVAL val out of range
4296	**/
4297	static ssize_t
4298	lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
4299	const char *buf, size_t count)
4300	{
4301	struct Scsi_Host *shost = class_to_shost(dev);
4302	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4303	struct lpfc_hba *phba = vport->phba;
4304	int val = LPFC_USER_LINK_SPEED_AUTO;
4305	int nolip = 0;
4306	const char *val_buf = buf;
4307	int err;
4308	uint32_t prev_val, if_type;
4309
4310	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
4311	if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 &&
4312	phba->hba_flag & HBA_FORCED_LINK_SPEED)
4313	return -EPERM;
4314
4315	if (!strncmp(buf, "nolip ", strlen("nolip "))) {
4316	nolip = 1;
4317	val_buf = &buf[strlen("nolip ")];
4318	}
4319
4320	if (!isdigit(c: val_buf[0]))
4321	return -EINVAL;
4322	if (sscanf(val_buf, "%i", &val) != 1)
4323	return -EINVAL;
4324
4325	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4326	"3055 lpfc_link_speed changed from %d to %d %s\n",
4327	phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
4328
4329	if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
4330	((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
4331	((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
4332	((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
4333	((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
4334	((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) ||
4335	((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) ||
4336	((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) {
4337	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4338	"2879 lpfc_link_speed attribute cannot be set "
4339	"to %d. Speed is not supported by this port.\n",
4340	val);
4341	return -EINVAL;
4342	}
4343	if (val >= LPFC_USER_LINK_SPEED_16G &&
4344	phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4345	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4346	"3112 lpfc_link_speed attribute cannot be set "
4347	"to %d. Speed is not supported in loop mode.\n",
4348	val);
4349	return -EINVAL;
4350	}
4351
4352	switch (val) {
4353	case LPFC_USER_LINK_SPEED_AUTO:
4354	case LPFC_USER_LINK_SPEED_1G:
4355	case LPFC_USER_LINK_SPEED_2G:
4356	case LPFC_USER_LINK_SPEED_4G:
4357	case LPFC_USER_LINK_SPEED_8G:
4358	case LPFC_USER_LINK_SPEED_16G:
4359	case LPFC_USER_LINK_SPEED_32G:
4360	case LPFC_USER_LINK_SPEED_64G:
4361	prev_val = phba->cfg_link_speed;
4362	phba->cfg_link_speed = val;
4363	if (nolip)
4364	return strlen(buf);
4365
4366	err = lpfc_issue_lip(shost: lpfc_shost_from_vport(vport: phba->pport));
4367	if (err) {
4368	phba->cfg_link_speed = prev_val;
4369	return -EINVAL;
4370	}
4371	return strlen(buf);
4372	default:
4373	break;
4374	}
4375
4376	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4377	"0469 lpfc_link_speed attribute cannot be set to %d, "
4378	"allowed values are [%s]\n",
4379	val, LPFC_LINK_SPEED_STRING);
4380	return -EINVAL;
4381
4382	}
4383
4384	static int lpfc_link_speed = 0;
4385	module_param(lpfc_link_speed, int, S_IRUGO);
4386	MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
4387	lpfc_param_show(link_speed)
4388
4389	/**
4390	* lpfc_link_speed_init - Set the adapters link speed
4391	* @phba: lpfc_hba pointer.
4392	* @val: link speed value.
4393	*
4394	* Description:
4395	* If val is in a valid range then set the adapter's link speed field.
4396	*
4397	* Notes:
4398	* If the value is not in range log a kernel error message, clear the link
4399	* speed and return an error.
4400	*
4401	* Returns:
4402	* zero if val saved.
4403	* -EINVAL val out of range
4404	**/
4405	static int
4406	lpfc_link_speed_init(struct lpfc_hba *phba, int val)
4407	{
4408	if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
4409	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4410	"3111 lpfc_link_speed of %d cannot "
4411	"support loop mode, setting topology to default.\n",
4412	val);
4413	phba->cfg_topology = 0;
4414	}
4415
4416	switch (val) {
4417	case LPFC_USER_LINK_SPEED_AUTO:
4418	case LPFC_USER_LINK_SPEED_1G:
4419	case LPFC_USER_LINK_SPEED_2G:
4420	case LPFC_USER_LINK_SPEED_4G:
4421	case LPFC_USER_LINK_SPEED_8G:
4422	case LPFC_USER_LINK_SPEED_16G:
4423	case LPFC_USER_LINK_SPEED_32G:
4424	case LPFC_USER_LINK_SPEED_64G:
4425	phba->cfg_link_speed = val;
4426	return 0;
4427	default:
4428	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4429	"0405 lpfc_link_speed attribute cannot "
4430	"be set to %d, allowed values are "
4431	"["LPFC_LINK_SPEED_STRING"]\n", val);
4432	phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
4433	return -EINVAL;
4434	}
4435	}
4436
4437	static DEVICE_ATTR_RW(lpfc_link_speed);
4438
4439	/*
4440	# lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
4441	# 1 = aer supported and enabled (default)
4442	# PCIe error reporting is always enabled by the PCI core, so this always
4443	# shows 1.
4444	#
4445	# N.B. Parts of LPFC_ATTR open-coded since some of the underlying
4446	# infrastructure (phba->cfg_aer_support) is gone.
4447	*/
4448	static uint lpfc_aer_support = 1;
4449	module_param(lpfc_aer_support, uint, S_IRUGO);
4450	MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
4451	static ssize_t
4452	lpfc_aer_support_show(struct device *dev, struct device_attribute *attr,
4453	char *buf)
4454	{
4455	return scnprintf(buf, PAGE_SIZE, fmt: "%d\n", lpfc_aer_support);
4456	}
4457
4458	/**
4459	* lpfc_aer_support_store - Set the adapter for aer support
4460	*
4461	* @dev: class device that is converted into a Scsi_host.
4462	* @attr: device attribute, not used.
4463	* @buf: containing enable or disable aer flag.
4464	* @count: unused variable.
4465	*
4466	* Description:
4467	* PCIe error reporting is enabled by the PCI core, so drivers don't need
4468	* to do anything. Retain this interface for backwards compatibility,
4469	* but do nothing.
4470	*
4471	* Returns:
4472	* length of the buf on success
4473	* -EINVAL if val out of range
4474	**/
4475	static ssize_t
4476	lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
4477	const char *buf, size_t count)
4478	{
4479	int val = 0;
4480
4481	if (!isdigit(c: buf[0]))
4482	return -EINVAL;
4483	if (sscanf(buf, "%i", &val) != 1)
4484	return -EINVAL;
4485
4486	dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n");
4487	return strlen(buf);
4488	}
4489
4490	static DEVICE_ATTR_RW(lpfc_aer_support);
4491
4492	/**
4493	* lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
4494	* @dev: class device that is converted into a Scsi_host.
4495	* @attr: device attribute, not used.
4496	* @buf: containing flag 1 for aer cleanup state.
4497	* @count: unused variable.
4498	*
4499	* Description:
4500	* If the @buf contains 1, invokes the kernel AER helper routine
4501	* pci_aer_clear_nonfatal_status() to clean up the uncorrectable
4502	* error status register.
4503	*
4504	* Notes:
4505	*
4506	* Returns:
4507	* -EINVAL if the buf does not contain 1
4508	* -EPERM if the OS cannot clear AER error status, i.e., when platform
4509	* firmware owns the AER Capability
4510	**/
4511	static ssize_t
4512	lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
4513	const char *buf, size_t count)
4514	{
4515	struct Scsi_Host *shost = class_to_shost(dev);
4516	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4517	struct lpfc_hba *phba = vport->phba;
4518	int val, rc = -1;
4519
4520	if (!isdigit(c: buf[0]))
4521	return -EINVAL;
4522	if (sscanf(buf, "%i", &val) != 1)
4523	return -EINVAL;
4524	if (val != 1)
4525	return -EINVAL;
4526
4527	rc = pci_aer_clear_nonfatal_status(dev: phba->pcidev);
4528
4529	if (rc == 0)
4530	return strlen(buf);
4531	else
4532	return -EPERM;
4533	}
4534
4535	static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
4536	lpfc_aer_cleanup_state);
4537
4538	/**
4539	* lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
4540	*
4541	* @dev: class device that is converted into a Scsi_host.
4542	* @attr: device attribute, not used.
4543	* @buf: containing the string the number of vfs to be enabled.
4544	* @count: unused variable.
4545	*
4546	* Description:
4547	* When this api is called either through user sysfs, the driver shall
4548	* try to enable or disable SR-IOV virtual functions according to the
4549	* following:
4550	*
4551	* If zero virtual function has been enabled to the physical function,
4552	* the driver shall invoke the pci enable virtual function api trying
4553	* to enable the virtual functions. If the nr_vfn provided is greater
4554	* than the maximum supported, the maximum virtual function number will
4555	* be used for invoking the api; otherwise, the nr_vfn provided shall
4556	* be used for invoking the api. If the api call returned success, the
4557	* actual number of virtual functions enabled will be set to the driver
4558	* cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
4559	* cfg_sriov_nr_virtfn remains zero.
4560	*
4561	* If none-zero virtual functions have already been enabled to the
4562	* physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4563	* -EINVAL will be returned and the driver does nothing;
4564	*
4565	* If the nr_vfn provided is zero and none-zero virtual functions have
4566	* been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4567	* disabling virtual function api shall be invoded to disable all the
4568	* virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4569	* zero. Otherwise, if zero virtual function has been enabled, do
4570	* nothing.
4571	*
4572	* Returns:
4573	* length of the buf on success if val is in range the intended mode
4574	* is supported.
4575	* -EINVAL if val out of range or intended mode is not supported.
4576	**/
4577	static ssize_t
4578	lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
4579	const char *buf, size_t count)
4580	{
4581	struct Scsi_Host *shost = class_to_shost(dev);
4582	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4583	struct lpfc_hba *phba = vport->phba;
4584	struct pci_dev *pdev = phba->pcidev;
4585	int val = 0, rc = -EINVAL;
4586
4587	/* Sanity check on user data */
4588	if (!isdigit(c: buf[0]))
4589	return -EINVAL;
4590	if (sscanf(buf, "%i", &val) != 1)
4591	return -EINVAL;
4592	if (val < 0)
4593	return -EINVAL;
4594
4595	/* Request disabling virtual functions */
4596	if (val == 0) {
4597	if (phba->cfg_sriov_nr_virtfn > 0) {
4598	pci_disable_sriov(dev: pdev);
4599	phba->cfg_sriov_nr_virtfn = 0;
4600	}
4601	return strlen(buf);
4602	}
4603
4604	/* Request enabling virtual functions */
4605	if (phba->cfg_sriov_nr_virtfn > 0) {
4606	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4607	"3018 There are %d virtual functions "
4608	"enabled on physical function.\n",
4609	phba->cfg_sriov_nr_virtfn);
4610	return -EEXIST;
4611	}
4612
4613	if (val <= LPFC_MAX_VFN_PER_PFN)
4614	phba->cfg_sriov_nr_virtfn = val;
4615	else {
4616	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4617	"3019 Enabling %d virtual functions is not "
4618	"allowed.\n", val);
4619	return -EINVAL;
4620	}
4621
4622	rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4623	if (rc) {
4624	phba->cfg_sriov_nr_virtfn = 0;
4625	rc = -EPERM;
4626	} else
4627	rc = strlen(buf);
4628
4629	return rc;
4630	}
4631
4632	LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN,
4633	"Enable PCIe device SR-IOV virtual fn");
4634
4635	lpfc_param_show(sriov_nr_virtfn)
4636	static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn);
4637
4638	/**
4639	* lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade
4640	*
4641	* @dev: class device that is converted into a Scsi_host.
4642	* @attr: device attribute, not used.
4643	* @buf: containing the string the number of vfs to be enabled.
4644	* @count: unused variable.
4645	*
4646	* Description:
4647	*
4648	* Returns:
4649	* length of the buf on success if val is in range the intended mode
4650	* is supported.
4651	* -EINVAL if val out of range or intended mode is not supported.
4652	**/
4653	static ssize_t
4654	lpfc_request_firmware_upgrade_store(struct device *dev,
4655	struct device_attribute *attr,
4656	const char *buf, size_t count)
4657	{
4658	struct Scsi_Host *shost = class_to_shost(dev);
4659	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4660	struct lpfc_hba *phba = vport->phba;
4661	int val = 0, rc;
4662
4663	/* Sanity check on user data */
4664	if (!isdigit(c: buf[0]))
4665	return -EINVAL;
4666	if (sscanf(buf, "%i", &val) != 1)
4667	return -EINVAL;
4668	if (val != 1)
4669	return -EINVAL;
4670
4671	rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4672	if (rc)
4673	rc = -EPERM;
4674	else
4675	rc = strlen(buf);
4676	return rc;
4677	}
4678
4679	static int lpfc_req_fw_upgrade;
4680	module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4681	MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4682	lpfc_param_show(request_firmware_upgrade)
4683
4684	/**
4685	* lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4686	* @phba: lpfc_hba pointer.
4687	* @val: 0 or 1.
4688	*
4689	* Description:
4690	* Set the initial Linux generic firmware upgrade enable or disable flag.
4691	*
4692	* Returns:
4693	* zero if val saved.
4694	* -EINVAL val out of range
4695	**/
4696	static int
4697	lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4698	{
4699	if (val >= 0 && val <= 1) {
4700	phba->cfg_request_firmware_upgrade = val;
4701	return 0;
4702	}
4703	return -EINVAL;
4704	}
4705	static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4706	lpfc_request_firmware_upgrade_show,
4707	lpfc_request_firmware_upgrade_store);
4708
4709	/**
4710	* lpfc_force_rscn_store
4711	*
4712	* @dev: class device that is converted into a Scsi_host.
4713	* @attr: device attribute, not used.
4714	* @buf: unused string
4715	* @count: unused variable.
4716	*
4717	* Description:
4718	* Force the switch to send a RSCN to all other NPorts in our zone
4719	* If we are direct connect pt2pt, build the RSCN command ourself
4720	* and send to the other NPort. Not supported for private loop.
4721	*
4722	* Returns:
4723	* 0 - on success
4724	* -EIO - if command is not sent
4725	**/
4726	static ssize_t
4727	lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr,
4728	const char *buf, size_t count)
4729	{
4730	struct Scsi_Host *shost = class_to_shost(dev);
4731	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4732	int i;
4733
4734	i = lpfc_issue_els_rscn(vport, retry: 0);
4735	if (i)
4736	return -EIO;
4737	return strlen(buf);
4738	}
4739
4740	/*
4741	* lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts
4742	* connected to the HBA.
4743	*
4744	* Value range is any ascii value
4745	*/
4746	static int lpfc_force_rscn;
4747	module_param(lpfc_force_rscn, int, 0644);
4748	MODULE_PARM_DESC(lpfc_force_rscn,
4749	"Force an RSCN to be sent to all remote NPorts");
4750	lpfc_param_show(force_rscn)
4751
4752	/**
4753	* lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts
4754	* @phba: lpfc_hba pointer.
4755	* @val: unused value.
4756	*
4757	* Returns:
4758	* zero if val saved.
4759	**/
4760	static int
4761	lpfc_force_rscn_init(struct lpfc_hba *phba, int val)
4762	{
4763	return 0;
4764	}
4765	static DEVICE_ATTR_RW(lpfc_force_rscn);
4766
4767	/**
4768	* lpfc_fcp_imax_store
4769	*
4770	* @dev: class device that is converted into a Scsi_host.
4771	* @attr: device attribute, not used.
4772	* @buf: string with the number of fast-path FCP interrupts per second.
4773	* @count: unused variable.
4774	*
4775	* Description:
4776	* If val is in a valid range [636,651042], then set the adapter's
4777	* maximum number of fast-path FCP interrupts per second.
4778	*
4779	* Returns:
4780	* length of the buf on success if val is in range the intended mode
4781	* is supported.
4782	* -EINVAL if val out of range or intended mode is not supported.
4783	**/
4784	static ssize_t
4785	lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
4786	const char *buf, size_t count)
4787	{
4788	struct Scsi_Host *shost = class_to_shost(dev);
4789	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4790	struct lpfc_hba *phba = vport->phba;
4791	struct lpfc_eq_intr_info *eqi;
4792	uint32_t usdelay;
4793	int val = 0, i;
4794
4795	/* fcp_imax is only valid for SLI4 */
4796	if (phba->sli_rev != LPFC_SLI_REV4)
4797	return -EINVAL;
4798
4799	/* Sanity check on user data */
4800	if (!isdigit(c: buf[0]))
4801	return -EINVAL;
4802	if (sscanf(buf, "%i", &val) != 1)
4803	return -EINVAL;
4804
4805	/*
4806	* Value range for the HBA is [5000,5000000]
4807	* The value for each EQ depends on how many EQs are configured.
4808	* Allow value == 0
4809	*/
4810	if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX))
4811	return -EINVAL;
4812
4813	phba->cfg_auto_imax = (val) ? 0 : 1;
4814	if (phba->cfg_fcp_imax && !val) {
4815	queue_delayed_work(wq: phba->wq, dwork: &phba->eq_delay_work,
4816	delay: msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
4817
4818	for_each_present_cpu(i) {
4819	eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
4820	eqi->icnt = 0;
4821	}
4822	}
4823
4824	phba->cfg_fcp_imax = (uint32_t)val;
4825
4826	if (phba->cfg_fcp_imax)
4827	usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
4828	else
4829	usdelay = 0;
4830
4831	for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT)
4832	lpfc_modify_hba_eq_delay(phba, startq: i, LPFC_MAX_EQ_DELAY_EQID_CNT,
4833	usdelay);
4834
4835	return strlen(buf);
4836	}
4837
4838	/*
4839	# lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
4840	# for the HBA.
4841	#
4842	# Value range is [5,000 to 5,000,000]. Default value is 50,000.
4843	*/
4844	static int lpfc_fcp_imax = LPFC_DEF_IMAX;
4845	module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
4846	MODULE_PARM_DESC(lpfc_fcp_imax,
4847	"Set the maximum number of FCP interrupts per second per HBA");
4848	lpfc_param_show(fcp_imax)
4849
4850	/**
4851	* lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
4852	* @phba: lpfc_hba pointer.
4853	* @val: link speed value.
4854	*
4855	* Description:
4856	* If val is in a valid range [636,651042], then initialize the adapter's
4857	* maximum number of fast-path FCP interrupts per second.
4858	*
4859	* Returns:
4860	* zero if val saved.
4861	* -EINVAL val out of range
4862	**/
4863	static int
4864	lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
4865	{
4866	if (phba->sli_rev != LPFC_SLI_REV4) {
4867	phba->cfg_fcp_imax = 0;
4868	return 0;
4869	}
4870
4871	if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) ||
4872	(val == 0)) {
4873	phba->cfg_fcp_imax = val;
4874	return 0;
4875	}
4876
4877	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4878	"3016 lpfc_fcp_imax: %d out of range, using default\n",
4879	val);
4880	phba->cfg_fcp_imax = LPFC_DEF_IMAX;
4881
4882	return 0;
4883	}
4884
4885	static DEVICE_ATTR_RW(lpfc_fcp_imax);
4886
4887	/**
4888	* lpfc_cq_max_proc_limit_store
4889	*
4890	* @dev: class device that is converted into a Scsi_host.
4891	* @attr: device attribute, not used.
4892	* @buf: string with the cq max processing limit of cqes
4893	* @count: unused variable.
4894	*
4895	* Description:
4896	* If val is in a valid range, then set value on each cq
4897	*
4898	* Returns:
4899	* The length of the buf: if successful
4900	* -ERANGE: if val is not in the valid range
4901	* -EINVAL: if bad value format or intended mode is not supported.
4902	**/
4903	static ssize_t
4904	lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr,
4905	const char *buf, size_t count)
4906	{
4907	struct Scsi_Host *shost = class_to_shost(dev);
4908	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4909	struct lpfc_hba *phba = vport->phba;
4910	struct lpfc_queue *eq, *cq;
4911	unsigned long val;
4912	int i;
4913
4914	/* cq_max_proc_limit is only valid for SLI4 */
4915	if (phba->sli_rev != LPFC_SLI_REV4)
4916	return -EINVAL;
4917
4918	/* Sanity check on user data */
4919	if (!isdigit(c: buf[0]))
4920	return -EINVAL;
4921	if (kstrtoul(s: buf, base: 0, res: &val))
4922	return -EINVAL;
4923
4924	if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT)
4925	return -ERANGE;
4926
4927	phba->cfg_cq_max_proc_limit = (uint32_t)val;
4928
4929	/* set the values on the cq's */
4930	for (i = 0; i < phba->cfg_irq_chann; i++) {
4931	/* Get the EQ corresponding to the IRQ vector */
4932	eq = phba->sli4_hba.hba_eq_hdl[i].eq;
4933	if (!eq)
4934	continue;
4935
4936	list_for_each_entry(cq, &eq->child_list, list)
4937	cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
4938	cq->entry_count);
4939	}
4940
4941	return strlen(buf);
4942	}
4943
4944	/*
4945	* lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an
4946	* itteration of CQ processing.
4947	*/
4948	static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
4949	module_param(lpfc_cq_max_proc_limit, int, 0644);
4950	MODULE_PARM_DESC(lpfc_cq_max_proc_limit,
4951	"Set the maximum number CQEs processed in an iteration of "
4952	"CQ processing");
4953	lpfc_param_show(cq_max_proc_limit)
4954
4955	/*
4956	* lpfc_cq_poll_threshold: Set the threshold of CQE completions in a
4957	* single handler call which should request a polled completion rather
4958	* than re-enabling interrupts.
4959	*/
4960	LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL,
4961	LPFC_CQ_MIN_THRESHOLD_TO_POLL,
4962	LPFC_CQ_MAX_THRESHOLD_TO_POLL,
4963	"CQE Processing Threshold to enable Polling");
4964
4965	/**
4966	* lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit
4967	* @phba: lpfc_hba pointer.
4968	* @val: entry limit
4969	*
4970	* Description:
4971	* If val is in a valid range, then initialize the adapter's maximum
4972	* value.
4973	*
4974	* Returns:
4975	* Always returns 0 for success, even if value not always set to
4976	* requested value. If value out of range or not supported, will fall
4977	* back to default.
4978	**/
4979	static int
4980	lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val)
4981	{
4982	phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
4983
4984	if (phba->sli_rev != LPFC_SLI_REV4)
4985	return 0;
4986
4987	if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) {
4988	phba->cfg_cq_max_proc_limit = val;
4989	return 0;
4990	}
4991
4992	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4993	"0371 lpfc_cq_max_proc_limit: %d out of range, using "
4994	"default\n",
4995	phba->cfg_cq_max_proc_limit);
4996
4997	return 0;
4998	}
4999
5000	static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit);
5001
5002	/**
5003	* lpfc_fcp_cpu_map_show - Display current driver CPU affinity
5004	* @dev: class converted to a Scsi_host structure.
5005	* @attr: device attribute, not used.
5006	* @buf: on return contains text describing the state of the link.
5007	*
5008	* Returns: size of formatted string.
5009	**/
5010	static ssize_t
5011	lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
5012	char *buf)
5013	{
5014	struct Scsi_Host *shost = class_to_shost(dev);
5015	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5016	struct lpfc_hba *phba = vport->phba;
5017	struct lpfc_vector_map_info *cpup;
5018	int len = 0;
5019
5020	if ((phba->sli_rev != LPFC_SLI_REV4) ||
5021	(phba->intr_type != MSIX))
5022	return len;
5023
5024	switch (phba->cfg_fcp_cpu_map) {
5025	case 0:
5026	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
5027	fmt: "fcp_cpu_map: No mapping (%d)\n",
5028	phba->cfg_fcp_cpu_map);
5029	return len;
5030	case 1:
5031	len += scnprintf(buf: buf + len, PAGE_SIZE-len,
5032	fmt: "fcp_cpu_map: HBA centric mapping (%d): "
5033	"%d of %d CPUs online from %d possible CPUs\n",
5034	phba->cfg_fcp_cpu_map, num_online_cpus(),
5035	num_present_cpus(),
5036	phba->sli4_hba.num_possible_cpu);
5037	break;
5038	}
5039
5040	while (phba->sli4_hba.curr_disp_cpu <
5041	phba->sli4_hba.num_possible_cpu) {
5042	cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
5043
5044	if (!cpu_present(cpu: phba->sli4_hba.curr_disp_cpu))
5045	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
5046	fmt: "CPU %02d not present\n",
5047	phba->sli4_hba.curr_disp_cpu);
5048	else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
5049	if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
5050	len += scnprintf(
5051	buf: buf + len, PAGE_SIZE - len,
5052	fmt: "CPU %02d hdwq None "
5053	"physid %d coreid %d ht %d ua %d\n",
5054	phba->sli4_hba.curr_disp_cpu,
5055	cpup->phys_id, cpup->core_id,
5056	(cpup->flag & LPFC_CPU_MAP_HYPER),
5057	(cpup->flag & LPFC_CPU_MAP_UNASSIGN));
5058	else
5059	len += scnprintf(
5060	buf: buf + len, PAGE_SIZE - len,
5061	fmt: "CPU %02d EQ None hdwq %04d "
5062	"physid %d coreid %d ht %d ua %d\n",
5063	phba->sli4_hba.curr_disp_cpu,
5064	cpup->hdwq, cpup->phys_id,
5065	cpup->core_id,
5066	(cpup->flag & LPFC_CPU_MAP_HYPER),
5067	(cpup->flag & LPFC_CPU_MAP_UNASSIGN));
5068	} else {
5069	if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
5070	len += scnprintf(
5071	buf: buf + len, PAGE_SIZE - len,
5072	fmt: "CPU %02d hdwq None "
5073	"physid %d coreid %d ht %d ua %d IRQ %d\n",
5074	phba->sli4_hba.curr_disp_cpu,
5075	cpup->phys_id,
5076	cpup->core_id,
5077	(cpup->flag & LPFC_CPU_MAP_HYPER),
5078	(cpup->flag & LPFC_CPU_MAP_UNASSIGN),
5079	lpfc_get_irq(cpup->eq));
5080	else
5081	len += scnprintf(
5082	buf: buf + len, PAGE_SIZE - len,
5083	fmt: "CPU %02d EQ %04d hdwq %04d "
5084	"physid %d coreid %d ht %d ua %d IRQ %d\n",
5085	phba->sli4_hba.curr_disp_cpu,
5086	cpup->eq, cpup->hdwq, cpup->phys_id,
5087	cpup->core_id,
5088	(cpup->flag & LPFC_CPU_MAP_HYPER),
5089	(cpup->flag & LPFC_CPU_MAP_UNASSIGN),
5090	lpfc_get_irq(cpup->eq));
5091	}
5092
5093	phba->sli4_hba.curr_disp_cpu++;
5094
5095	/* display max number of CPUs keeping some margin */
5096	if (phba->sli4_hba.curr_disp_cpu <
5097	phba->sli4_hba.num_possible_cpu &&
5098	(len >= (PAGE_SIZE - 64))) {
5099	len += scnprintf(buf: buf + len,
5100	PAGE_SIZE - len, fmt: "more...\n");
5101	break;
5102	}
5103	}
5104
5105	if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu)
5106	phba->sli4_hba.curr_disp_cpu = 0;
5107
5108	return len;
5109	}
5110
5111	/**
5112	* lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
5113	* @dev: class device that is converted into a Scsi_host.
5114	* @attr: device attribute, not used.
5115	* @buf: one or more lpfc_polling_flags values.
5116	* @count: not used.
5117	*
5118	* Returns:
5119	* -EINVAL - Not implemented yet.
5120	**/
5121	static ssize_t
5122	lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
5123	const char *buf, size_t count)
5124	{
5125	return -EINVAL;
5126	}
5127
5128	/*
5129	# lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
5130	# for the HBA.
5131	#
5132	# Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1).
5133	# 0 - Do not affinitze IRQ vectors
5134	# 1 - Affintize HBA vectors with respect to each HBA
5135	# (start with CPU0 for each HBA)
5136	# This also defines how Hardware Queues are mapped to specific CPUs.
5137	*/
5138	static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP;
5139	module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
5140	MODULE_PARM_DESC(lpfc_fcp_cpu_map,
5141	"Defines how to map CPUs to IRQ vectors per HBA");
5142
5143	/**
5144	* lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
5145	* @phba: lpfc_hba pointer.
5146	* @val: link speed value.
5147	*
5148	* Description:
5149	* If val is in a valid range [0-2], then affinitze the adapter's
5150	* MSIX vectors.
5151	*
5152	* Returns:
5153	* zero if val saved.
5154	* -EINVAL val out of range
5155	**/
5156	static int
5157	lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
5158	{
5159	if (phba->sli_rev != LPFC_SLI_REV4) {
5160	phba->cfg_fcp_cpu_map = 0;
5161	return 0;
5162	}
5163
5164	if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
5165	phba->cfg_fcp_cpu_map = val;
5166	return 0;
5167	}
5168
5169	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5170	"3326 lpfc_fcp_cpu_map: %d out of range, using "
5171	"default\n", val);
5172	phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP;
5173
5174	return 0;
5175	}
5176
5177	static DEVICE_ATTR_RW(lpfc_fcp_cpu_map);
5178
5179	/*
5180	# lpfc_fcp_class: Determines FC class to use for the FCP protocol.
5181	# Value range is [2,3]. Default value is 3.
5182	*/
5183	LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
5184	"Select Fibre Channel class of service for FCP sequences");
5185
5186	/*
5187	# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
5188	# is [0,1]. Default value is 1.
5189	*/
5190	LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1,
5191	"Use ADISC on rediscovery to authenticate FCP devices");
5192
5193	/*
5194	# lpfc_first_burst_size: First burst size to use on the NPorts
5195	# that support first burst.
5196	# Value range is [0,65536]. Default value is 0.
5197	*/
5198	LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
5199	"First burst size for Targets that support first burst");
5200
5201	/*
5202	* lpfc_nvmet_fb_size: NVME Target mode supported first burst size.
5203	* When the driver is configured as an NVME target, this value is
5204	* communicated to the NVME initiator in the PRLI response. It is
5205	* used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support
5206	* parameters are set and the target is sending the PRLI RSP.
5207	* Parameter supported on physical port only - no NPIV support.
5208	* Value range is [0,65536]. Default value is 0.
5209	*/
5210	LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536,
5211	"NVME Target mode first burst size in 512B increments.");
5212
5213	/*
5214	* lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions.
5215	* For the Initiator (I), enabling this parameter means that an NVMET
5216	* PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be
5217	* processed by the initiator for subsequent NVME FCP IO.
5218	* Currently, this feature is not supported on the NVME target
5219	* Value range is [0,1]. Default value is 0 (disabled).
5220	*/
5221	LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1,
5222	"Enable First Burst feature for NVME Initiator.");
5223
5224	/*
5225	# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
5226	# depth. Default value is 0. When the value of this parameter is zero the
5227	# SCSI command completion time is not used for controlling I/O queue depth. When
5228	# the parameter is set to a non-zero value, the I/O queue depth is controlled
5229	# to limit the I/O completion time to the parameter value.
5230	# The value is set in milliseconds.
5231	*/
5232	LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000,
5233	"Use command completion time to control queue depth");
5234
5235	lpfc_vport_param_show(max_scsicmpl_time);
5236	static int
5237	lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
5238	{
5239	struct lpfc_nodelist *ndlp, *next_ndlp;
5240	unsigned long iflags;
5241
5242	if (val == vport->cfg_max_scsicmpl_time)
5243	return 0;
5244	if ((val < 0) || (val > 60000))
5245	return -EINVAL;
5246	vport->cfg_max_scsicmpl_time = val;
5247
5248	spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);
5249	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5250	if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
5251	continue;
5252	ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
5253	}
5254	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock, flags: iflags);
5255	return 0;
5256	}
5257	lpfc_vport_param_store(max_scsicmpl_time);
5258	static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time);
5259
5260	/*
5261	# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
5262	# range is [0,1]. Default value is 0.
5263	*/
5264	LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
5265
5266	/*
5267	# lpfc_xri_rebalancing: enable or disable XRI rebalancing feature
5268	# range is [0,1]. Default value is 1.
5269	*/
5270	LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
5271
5272	/*
5273	* lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds
5274	* range is [0,1]. Default value is 0.
5275	* For [0], FCP commands are issued to Work Queues based on upper layer
5276	* hardware queue index.
5277	* For [1], FCP commands are issued to a Work Queue associated with the
5278	* current CPU.
5279	*
5280	* LPFC_FCP_SCHED_BY_HDWQ == 0
5281	* LPFC_FCP_SCHED_BY_CPU == 1
5282	*
5283	* The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu
5284	* affinity for FCP/NVME I/Os through Work Queues associated with the current
5285	* CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os
5286	* through WQs will be used.
5287	*/
5288	LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU,
5289	LPFC_FCP_SCHED_BY_HDWQ,
5290	LPFC_FCP_SCHED_BY_CPU,
5291	"Determine scheduling algorithm for "
5292	"issuing commands [0] - Hardware Queue, [1] - Current CPU");
5293
5294	/*
5295	* lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN
5296	* range is [0,1]. Default value is 0.
5297	* For [0], GID_FT is used for NameServer queries after RSCN (default)
5298	* For [1], GID_PT is used for NameServer queries after RSCN
5299	*
5300	*/
5301	LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT,
5302	LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT,
5303	"Determine algorithm NameServer queries after RSCN "
5304	"[0] - GID_FT, [1] - GID_PT");
5305
5306	/*
5307	# lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
5308	# range is [0,1]. Default value is 0.
5309	# For [0], bus reset issues target reset to ALL devices
5310	# For [1], bus reset issues target reset to non-FCP2 devices
5311	*/
5312	LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
5313	"FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
5314
5315
5316	/*
5317	# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
5318	# cr_delay (msec) or cr_count outstanding commands. cr_delay can take
5319	# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
5320	# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
5321	# cr_delay is set to 0.
5322	*/
5323	LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
5324	"interrupt response is generated");
5325
5326	LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
5327	"interrupt response is generated");
5328
5329	/*
5330	# lpfc_multi_ring_support: Determines how many rings to spread available
5331	# cmd/rsp IOCB entries across.
5332	# Value range is [1,2]. Default value is 1.
5333	*/
5334	LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
5335	"SLI rings to spread IOCB entries across");
5336
5337	/*
5338	# lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
5339	# identifies what rctl value to configure the additional ring for.
5340	# Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
5341	*/
5342	LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
5343	255, "Identifies RCTL for additional ring configuration");
5344
5345	/*
5346	# lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
5347	# identifies what type value to configure the additional ring for.
5348	# Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
5349	*/
5350	LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
5351	255, "Identifies TYPE for additional ring configuration");
5352
5353	/*
5354	# lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
5355	# 0 = SmartSAN functionality disabled (default)
5356	# 1 = SmartSAN functionality enabled
5357	# This parameter will override the value of lpfc_fdmi_on module parameter.
5358	# Value range is [0,1]. Default value is 0.
5359	*/
5360	LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
5361
5362	/*
5363	# lpfc_fdmi_on: Controls FDMI support.
5364	# 0 No FDMI support
5365	# 1 Traditional FDMI support (default)
5366	# Traditional FDMI support means the driver will assume FDMI-2 support;
5367	# however, if that fails, it will fallback to FDMI-1.
5368	# If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
5369	# If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
5370	# lpfc_fdmi_on.
5371	# Value range [0,1]. Default value is 1.
5372	*/
5373	LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support");
5374
5375	/*
5376	# Specifies the maximum number of ELS cmds we can have outstanding (for
5377	# discovery). Value range is [1,64]. Default value = 32.
5378	*/
5379	LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
5380	"during discovery");
5381
5382	/*
5383	# lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
5384	# will be scanned by the SCSI midlayer when sequential scanning is
5385	# used; and is also the highest LUN ID allowed when the SCSI midlayer
5386	# parses REPORT_LUN responses. The lpfc driver has no LUN count or
5387	# LUN ID limit, but the SCSI midlayer requires this field for the uses
5388	# above. The lpfc driver limits the default value to 255 for two reasons.
5389	# As it bounds the sequential scan loop, scanning for thousands of luns
5390	# on a target can take minutes of wall clock time. Additionally,
5391	# there are FC targets, such as JBODs, that only recognize 8-bits of
5392	# LUN ID. When they receive a value greater than 8 bits, they chop off
5393	# the high order bits. In other words, they see LUN IDs 0, 256, 512,
5394	# and so on all as LUN ID 0. This causes the linux kernel, which sees
5395	# valid responses at each of the LUN IDs, to believe there are multiple
5396	# devices present, when in fact, there is only 1.
5397	# A customer that is aware of their target behaviors, and the results as
5398	# indicated above, is welcome to increase the lpfc_max_luns value.
5399	# As mentioned, this value is not used by the lpfc driver, only the
5400	# SCSI midlayer.
5401	# Value range is [0,65535]. Default value is 255.
5402	# NOTE: The SCSI layer might probe all allowed LUN on some old targets.
5403	*/
5404	LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
5405
5406	/*
5407	# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
5408	# Value range is [1,255], default value is 10.
5409	*/
5410	LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
5411	"Milliseconds driver will wait between polling FCP ring");
5412
5413	/*
5414	# lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
5415	# to complete in seconds. Value range is [5,180], default value is 60.
5416	*/
5417	LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
5418	"Maximum time to wait for task management commands to complete");
5419	/*
5420	# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
5421	# support this feature
5422	# 0 = MSI disabled
5423	# 1 = MSI enabled
5424	# 2 = MSI-X enabled (default)
5425	# Value range is [0,2]. Default value is 2.
5426	*/
5427	LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
5428	"MSI-X (2), if possible");
5429
5430	/*
5431	* lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs
5432	*
5433	* 0 = NVME OAS disabled
5434	* 1 = NVME OAS enabled
5435	*
5436	* Value range is [0,1]. Default value is 0.
5437	*/
5438	LPFC_ATTR_RW(nvme_oas, 0, 0, 1,
5439	"Use OAS bit on NVME IOs");
5440
5441	/*
5442	* lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs
5443	*
5444	* 0 = Put NVME Command in SGL
5445	* 1 = Embed NVME Command in WQE (unless G7)
5446	* 2 = Embed NVME Command in WQE (force)
5447	*
5448	* Value range is [0,2]. Default value is 1.
5449	*/
5450	LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
5451	"Embed NVME Command in WQE");
5452
5453	/*
5454	* lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues
5455	* the driver will advertise it supports to the SCSI layer.
5456	*
5457	* 0 = Set nr_hw_queues by the number of CPUs or HW queues.
5458	* 1,256 = Manually specify nr_hw_queue value to be advertised,
5459	*
5460	* Value range is [0,256]. Default value is 8.
5461	*/
5462	LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF,
5463	LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX,
5464	"Set the number of SCSI Queues advertised");
5465
5466	/*
5467	* lpfc_hdw_queue: Set the number of Hardware Queues the driver
5468	* will advertise it supports to the NVME and SCSI layers. This also
5469	* will map to the number of CQ/WQ pairs the driver will create.
5470	*
5471	* The NVME Layer will try to create this many, plus 1 administrative
5472	* hardware queue. The administrative queue will always map to WQ 0
5473	* A hardware IO queue maps (qidx) to a specific driver CQ/WQ.
5474	*
5475	* 0 = Configure the number of hdw queues to the number of active CPUs.
5476	* 1,256 = Manually specify how many hdw queues to use.
5477	*
5478	* Value range is [0,256]. Default value is 0.
5479	*/
5480	LPFC_ATTR_R(hdw_queue,
5481	LPFC_HBA_HDWQ_DEF,
5482	LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX,
5483	"Set the number of I/O Hardware Queues");
5484
5485	#if IS_ENABLED(CONFIG_X86)
5486	/**
5487	* lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on
5488	* irq_chann_mode
5489	* @phba: Pointer to HBA context object.
5490	**/
5491	static void
5492	lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba)
5493	{
5494	unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE;
5495	const struct cpumask *sibling_mask;
5496	struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask;
5497
5498	cpumask_clear(dstp: aff_mask);
5499
5500	if (phba->irq_chann_mode == NUMA_MODE) {
5501	/* Check if we're a NUMA architecture */
5502	numa_node = dev_to_node(dev: &phba->pcidev->dev);
5503	if (numa_node == NUMA_NO_NODE) {
5504	phba->irq_chann_mode = NORMAL_MODE;
5505	return;
5506	}
5507	}
5508
5509	for_each_possible_cpu(cpu) {
5510	switch (phba->irq_chann_mode) {
5511	case NUMA_MODE:
5512	if (cpu_to_node(cpu) == numa_node)
5513	cpumask_set_cpu(cpu, dstp: aff_mask);
5514	break;
5515	case NHT_MODE:
5516	sibling_mask = topology_sibling_cpumask(cpu);
5517	first_cpu = cpumask_first(srcp: sibling_mask);
5518	if (first_cpu < nr_cpu_ids)
5519	cpumask_set_cpu(cpu: first_cpu, dstp: aff_mask);
5520	break;
5521	default:
5522	break;
5523	}
5524	}
5525	}
5526	#endif
5527
5528	static void
5529	lpfc_assign_default_irq_chann(struct lpfc_hba *phba)
5530	{
5531	#if IS_ENABLED(CONFIG_X86)
5532	switch (boot_cpu_data.x86_vendor) {
5533	case X86_VENDOR_AMD:
5534	/* If AMD architecture, then default is NUMA_MODE */
5535	phba->irq_chann_mode = NUMA_MODE;
5536	break;
5537	case X86_VENDOR_INTEL:
5538	/* If Intel architecture, then default is no hyperthread mode */
5539	phba->irq_chann_mode = NHT_MODE;
5540	break;
5541	default:
5542	phba->irq_chann_mode = NORMAL_MODE;
5543	break;
5544	}
5545	lpfc_cpumask_irq_mode_init(phba);
5546	#else
5547	phba->irq_chann_mode = NORMAL_MODE;
5548	#endif
5549	}
5550
5551	/*
5552	* lpfc_irq_chann: Set the number of IRQ vectors that are available
5553	* for Hardware Queues to utilize. This also will map to the number
5554	* of EQ / MSI-X vectors the driver will create. This should never be
5555	* more than the number of Hardware Queues
5556	*
5557	* 0 = Configure number of IRQ Channels to:
5558	* if AMD architecture, number of CPUs on HBA's NUMA node
5559	* if Intel architecture, number of physical CPUs.
5560	* otherwise, number of active CPUs.
5561	* [1,256] = Manually specify how many IRQ Channels to use.
5562	*
5563	* Value range is [0,256]. Default value is [0].
5564	*/
5565	static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF;
5566	module_param(lpfc_irq_chann, uint, 0444);
5567	MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate");
5568
5569	/* lpfc_irq_chann_init - Set the hba irq_chann initial value
5570	* @phba: lpfc_hba pointer.
5571	* @val: contains the initial value
5572	*
5573	* Description:
5574	* Validates the initial value is within range and assigns it to the
5575	* adapter. If not in range, an error message is posted and the
5576	* default value is assigned.
5577	*
5578	* Returns:
5579	* zero if value is in range and is set
5580	* -EINVAL if value was out of range
5581	**/
5582	static int
5583	lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val)
5584	{
5585	const struct cpumask *aff_mask;
5586
5587	if (phba->cfg_use_msi != 2) {
5588	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5589	"8532 use_msi = %u ignoring cfg_irq_numa\n",
5590	phba->cfg_use_msi);
5591	phba->irq_chann_mode = NORMAL_MODE;
5592	phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
5593	return 0;
5594	}
5595
5596	/* Check if default setting was passed */
5597	if (val == LPFC_IRQ_CHANN_DEF &&
5598	phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF &&
5599	phba->sli_rev == LPFC_SLI_REV4)
5600	lpfc_assign_default_irq_chann(phba);
5601
5602	if (phba->irq_chann_mode != NORMAL_MODE) {
5603	aff_mask = &phba->sli4_hba.irq_aff_mask;
5604
5605	if (cpumask_empty(srcp: aff_mask)) {
5606	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5607	"8533 Could not identify CPUS for "
5608	"mode %d, ignoring\n",
5609	phba->irq_chann_mode);
5610	phba->irq_chann_mode = NORMAL_MODE;
5611	phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
5612	} else {
5613	phba->cfg_irq_chann = cpumask_weight(srcp: aff_mask);
5614
5615	/* If no hyperthread mode, then set hdwq count to
5616	* aff_mask weight as well
5617	*/
5618	if (phba->irq_chann_mode == NHT_MODE)
5619	phba->cfg_hdw_queue = phba->cfg_irq_chann;
5620
5621	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5622	"8543 lpfc_irq_chann set to %u "
5623	"(mode: %d)\n", phba->cfg_irq_chann,
5624	phba->irq_chann_mode);
5625	}
5626	} else {
5627	if (val > LPFC_IRQ_CHANN_MAX) {
5628	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5629	"8545 lpfc_irq_chann attribute cannot "
5630	"be set to %u, allowed range is "
5631	"[%u,%u]\n",
5632	val,
5633	LPFC_IRQ_CHANN_MIN,
5634	LPFC_IRQ_CHANN_MAX);
5635	phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
5636	return -EINVAL;
5637	}
5638	if (phba->sli_rev == LPFC_SLI_REV4) {
5639	phba->cfg_irq_chann = val;
5640	} else {
5641	phba->cfg_irq_chann = 2;
5642	phba->cfg_hdw_queue = 1;
5643	}
5644	}
5645
5646	return 0;
5647	}
5648
5649	/**
5650	* lpfc_irq_chann_show - Display value of irq_chann
5651	* @dev: class converted to a Scsi_host structure.
5652	* @attr: device attribute, not used.
5653	* @buf: on return contains a string with the list sizes
5654	*
5655	* Returns: size of formatted string.
5656	**/
5657	static ssize_t
5658	lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr,
5659	char *buf)
5660	{
5661	struct Scsi_Host *shost = class_to_shost(dev);
5662	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5663	struct lpfc_hba *phba = vport->phba;
5664
5665	return scnprintf(buf, PAGE_SIZE, fmt: "%u\n", phba->cfg_irq_chann);
5666	}
5667
5668	static DEVICE_ATTR_RO(lpfc_irq_chann);
5669
5670	/*
5671	# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
5672	# 0 = HBA resets disabled
5673	# 1 = HBA resets enabled (default)
5674	# 2 = HBA reset via PCI bus reset enabled
5675	# Value range is [0,2]. Default value is 1.
5676	*/
5677	LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver.");
5678
5679	/*
5680	# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
5681	# 0 = HBA Heartbeat disabled
5682	# 1 = HBA Heartbeat enabled (default)
5683	# Value range is [0,1]. Default value is 1.
5684	*/
5685	LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
5686
5687	/*
5688	# lpfc_EnableXLane: Enable Express Lane Feature
5689	# 0x0 Express Lane Feature disabled
5690	# 0x1 Express Lane Feature enabled
5691	# Value range is [0,1]. Default value is 0.
5692	*/
5693	LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
5694
5695	/*
5696	# lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
5697	# 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
5698	# Value range is [0x0,0x7f]. Default value is 0
5699	*/
5700	LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
5701
5702	/*
5703	# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
5704	# 0 = BlockGuard disabled (default)
5705	# 1 = BlockGuard enabled
5706	# Value range is [0,1]. Default value is 0.
5707	*/
5708	LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
5709
5710	/*
5711	# lpfc_prot_mask:
5712	# - Bit mask of host protection capabilities used to register with the
5713	# SCSI mid-layer
5714	# - Only meaningful if BG is turned on (lpfc_enable_bg=1).
5715	# - Allows you to ultimately specify which profiles to use
5716	# - Default will result in registering capabilities for all profiles.
5717	# - SHOST_DIF_TYPE1_PROTECTION 1
5718	# HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
5719	# - SHOST_DIX_TYPE0_PROTECTION 8
5720	# HBA supports DIX Type 0: Host to HBA protection only
5721	# - SHOST_DIX_TYPE1_PROTECTION 16
5722	# HBA supports DIX Type 1: Host to HBA Type 1 protection
5723	#
5724	*/
5725	LPFC_ATTR(prot_mask,
5726	(SHOST_DIF_TYPE1_PROTECTION |
5727	SHOST_DIX_TYPE0_PROTECTION |
5728	SHOST_DIX_TYPE1_PROTECTION),
5729	0,
5730	(SHOST_DIF_TYPE1_PROTECTION |
5731	SHOST_DIX_TYPE0_PROTECTION |
5732	SHOST_DIX_TYPE1_PROTECTION),
5733	"T10-DIF host protection capabilities mask");
5734
5735	/*
5736	# lpfc_prot_guard:
5737	# - Bit mask of protection guard types to register with the SCSI mid-layer
5738	# - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
5739	# - Allows you to ultimately specify which profiles to use
5740	# - Default will result in registering capabilities for all guard types
5741	#
5742	*/
5743	LPFC_ATTR(prot_guard,
5744	SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP,
5745	"T10-DIF host protection guard type");
5746
5747	/*
5748	* Delay initial NPort discovery when Clean Address bit is cleared in
5749	* FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
5750	* This parameter can have value 0 or 1.
5751	* When this parameter is set to 0, no delay is added to the initial
5752	* discovery.
5753	* When this parameter is set to non-zero value, initial Nport discovery is
5754	* delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
5755	* accept and FCID/Fabric name/Fabric portname is changed.
5756	* Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
5757	* when Clean Address bit is cleared in FLOGI/FDISC
5758	* accept and FCID/Fabric name/Fabric portname is changed.
5759	* Default value is 0.
5760	*/
5761	LPFC_ATTR(delay_discovery, 0, 0, 1,
5762	"Delay NPort discovery when Clean Address bit is cleared.");
5763
5764	/*
5765	* lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
5766	* This value can be set to values between 64 and 4096. The default value
5767	* is 64, but may be increased to allow for larger Max I/O sizes. The scsi
5768	* and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE).
5769	* Because of the additional overhead involved in setting up T10-DIF,
5770	* this parameter will be limited to 128 if BlockGuard is enabled under SLI4
5771	* and will be limited to 512 if BlockGuard is enabled under SLI3.
5772	*/
5773	static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
5774	module_param(lpfc_sg_seg_cnt, uint, 0444);
5775	MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count");
5776
5777	/**
5778	* lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes
5779	* configured for the adapter
5780	* @dev: class converted to a Scsi_host structure.
5781	* @attr: device attribute, not used.
5782	* @buf: on return contains a string with the list sizes
5783	*
5784	* Returns: size of formatted string.
5785	**/
5786	static ssize_t
5787	lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr,
5788	char *buf)
5789	{
5790	struct Scsi_Host *shost = class_to_shost(dev);
5791	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5792	struct lpfc_hba *phba = vport->phba;
5793	int len;
5794
5795	len = scnprintf(buf, PAGE_SIZE, fmt: "SGL sz: %d total SGEs: %d\n",
5796	phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
5797
5798	len += scnprintf(buf: buf + len, PAGE_SIZE - len,
5799	fmt: "Cfg: %d SCSI: %d NVME: %d\n",
5800	phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
5801	phba->cfg_nvme_seg_cnt);
5802	return len;
5803	}
5804
5805	static DEVICE_ATTR_RO(lpfc_sg_seg_cnt);
5806
5807	/**
5808	* lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value
5809	* @phba: lpfc_hba pointer.
5810	* @val: contains the initial value
5811	*
5812	* Description:
5813	* Validates the initial value is within range and assigns it to the
5814	* adapter. If not in range, an error message is posted and the
5815	* default value is assigned.
5816	*
5817	* Returns:
5818	* zero if value is in range and is set
5819	* -EINVAL if value was out of range
5820	**/
5821	static int
5822	lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val)
5823	{
5824	if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) {
5825	phba->cfg_sg_seg_cnt = val;
5826	return 0;
5827	}
5828	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5829	"0409 lpfc_sg_seg_cnt attribute cannot be set to %d, "
5830	"allowed range is [%d, %d]\n",
5831	val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT);
5832	phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
5833	return -EINVAL;
5834	}
5835
5836	/*
5837	* lpfc_enable_mds_diags: Enable MDS Diagnostics
5838	* 0 = MDS Diagnostics disabled (default)
5839	* 1 = MDS Diagnostics enabled
5840	* Value range is [0,1]. Default value is 0.
5841	*/
5842	LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
5843
5844	/*
5845	* lpfc_ras_fwlog_buffsize: Firmware logging host buffer size
5846	* 0 = Disable firmware logging (default)
5847	* [1-4] = Multiple of 1/4th Mb of host memory for FW logging
5848	* Value range [0..4]. Default value is 0
5849	*/
5850	LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging");
5851	lpfc_param_show(ras_fwlog_buffsize);
5852
5853	static ssize_t
5854	lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val)
5855	{
5856	int ret = 0;
5857	enum ras_state state;
5858
5859	if (!lpfc_rangecheck(val, 0, 4))
5860	return -EINVAL;
5861
5862	if (phba->cfg_ras_fwlog_buffsize == val)
5863	return 0;
5864
5865	if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn))
5866	return -EINVAL;
5867
5868	spin_lock_irq(lock: &phba->ras_fwlog_lock);
5869	state = phba->ras_fwlog.state;
5870	spin_unlock_irq(lock: &phba->ras_fwlog_lock);
5871
5872	if (state == REG_INPROGRESS) {
5873	lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging "
5874	"registration is in progress\n");
5875	return -EBUSY;
5876	}
5877
5878	/* For disable logging: stop the logs and free the DMA.
5879	* For ras_fwlog_buffsize size change we still need to free and
5880	* reallocate the DMA in lpfc_sli4_ras_fwlog_init.
5881	*/
5882	phba->cfg_ras_fwlog_buffsize = val;
5883	if (state == ACTIVE) {
5884	lpfc_ras_stop_fwlog(phba);
5885	lpfc_sli4_ras_dma_free(phba);
5886	}
5887
5888	lpfc_sli4_ras_init(phba);
5889	if (phba->ras_fwlog.ras_enabled)
5890	ret = lpfc_sli4_ras_fwlog_init(phba, fwlog_level: phba->cfg_ras_fwlog_level,
5891	LPFC_RAS_ENABLE_LOGGING);
5892	return ret;
5893	}
5894
5895	lpfc_param_store(ras_fwlog_buffsize);
5896	static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize);
5897
5898	/*
5899	* lpfc_ras_fwlog_level: Firmware logging verbosity level
5900	* Valid only if firmware logging is enabled
5901	* 0(Least Verbosity) 4 (most verbosity)
5902	* Value range is [0..4]. Default value is 0
5903	*/
5904	LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level");
5905
5906	/*
5907	* lpfc_ras_fwlog_func: Firmware logging enabled on function number
5908	* Default function which has RAS support : 0
5909	* Value Range is [0..3].
5910	* FW logging is a global action and enablement is via a specific
5911	* port.
5912	*/
5913	LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 3, "Firmware Logging Enabled on Function");
5914
5915	/*
5916	* lpfc_enable_bbcr: Enable BB Credit Recovery
5917	* 0 = BB Credit Recovery disabled
5918	* 1 = BB Credit Recovery enabled (default)
5919	* Value range is [0,1]. Default value is 1.
5920	*/
5921	LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery");
5922
5923	/* Signaling module parameters */
5924	int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */
5925	module_param(lpfc_fabric_cgn_frequency, int, 0444);
5926	MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq");
5927
5928	unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */
5929	module_param(lpfc_acqe_cgn_frequency, byte, 0444);
5930	MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq");
5931
5932	int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */
5933	module_param(lpfc_use_cgn_signal, int, 0444);
5934	MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available");
5935
5936	/*
5937	* lpfc_enable_dpp: Enable DPP on G7
5938	* 0 = DPP on G7 disabled
5939	* 1 = DPP on G7 enabled (default)
5940	* Value range is [0,1]. Default value is 1.
5941	*/
5942	LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push");
5943
5944	/*
5945	* lpfc_enable_mi: Enable FDMI MIB
5946	* 0 = disabled
5947	* 1 = enabled (default)
5948	* Value range is [0,1].
5949	*/
5950	LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI");
5951
5952	/*
5953	* lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if
5954	* either vmid_app_header or vmid_priority_tagging is enabled.
5955	* 4 - 255 = vmid support enabled for 4-255 VMs
5956	* Value range is [4,255].
5957	*/
5958	LPFC_ATTR_R(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID,
5959	"Maximum number of VMs supported");
5960
5961	/*
5962	* lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours
5963	* 0 = Timeout is disabled
5964	* Value range is [0,24].
5965	*/
5966	LPFC_ATTR_R(vmid_inactivity_timeout, 4, 0, 24,
5967	"Inactivity timeout in hours");
5968
5969	/*
5970	* lpfc_vmid_app_header: Enable App Header VMID support
5971	* 0 = Support is disabled (default)
5972	* 1 = Support is enabled
5973	* Value range is [0,1].
5974	*/
5975	LPFC_ATTR_R(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE,
5976	LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE,
5977	"Enable App Header VMID support");
5978
5979	/*
5980	* lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support
5981	* 0 = Support is disabled (default)
5982	* 1 = Allow supported targets only
5983	* 2 = Allow all targets
5984	* Value range is [0,2].
5985	*/
5986	LPFC_ATTR_R(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE,
5987	LPFC_VMID_PRIO_TAG_DISABLE,
5988	LPFC_VMID_PRIO_TAG_ALL_TARGETS,
5989	"Enable Priority Tagging VMID support");
5990
5991	static struct attribute *lpfc_hba_attrs[] = {
5992	&dev_attr_nvme_info.attr,
5993	&dev_attr_scsi_stat.attr,
5994	&dev_attr_bg_info.attr,
5995	&dev_attr_bg_guard_err.attr,
5996	&dev_attr_bg_apptag_err.attr,
5997	&dev_attr_bg_reftag_err.attr,
5998	&dev_attr_info.attr,
5999	&dev_attr_serialnum.attr,
6000	&dev_attr_modeldesc.attr,
6001	&dev_attr_modelname.attr,
6002	&dev_attr_programtype.attr,
6003	&dev_attr_portnum.attr,
6004	&dev_attr_fwrev.attr,
6005	&dev_attr_hdw.attr,
6006	&dev_attr_option_rom_version.attr,
6007	&dev_attr_link_state.attr,
6008	&dev_attr_num_discovered_ports.attr,
6009	&dev_attr_lpfc_drvr_version.attr,
6010	&dev_attr_lpfc_enable_fip.attr,
6011	&dev_attr_lpfc_temp_sensor.attr,
6012	&dev_attr_lpfc_log_verbose.attr,
6013	&dev_attr_lpfc_lun_queue_depth.attr,
6014	&dev_attr_lpfc_tgt_queue_depth.attr,
6015	&dev_attr_lpfc_hba_queue_depth.attr,
6016	&dev_attr_lpfc_peer_port_login.attr,
6017	&dev_attr_lpfc_nodev_tmo.attr,
6018	&dev_attr_lpfc_devloss_tmo.attr,
6019	&dev_attr_lpfc_enable_fc4_type.attr,
6020	&dev_attr_lpfc_fcp_class.attr,
6021	&dev_attr_lpfc_use_adisc.attr,
6022	&dev_attr_lpfc_first_burst_size.attr,
6023	&dev_attr_lpfc_ack0.attr,
6024	&dev_attr_lpfc_xri_rebalancing.attr,
6025	&dev_attr_lpfc_topology.attr,
6026	&dev_attr_lpfc_scan_down.attr,
6027	&dev_attr_lpfc_link_speed.attr,
6028	&dev_attr_lpfc_fcp_io_sched.attr,
6029	&dev_attr_lpfc_ns_query.attr,
6030	&dev_attr_lpfc_fcp2_no_tgt_reset.attr,
6031	&dev_attr_lpfc_cr_delay.attr,
6032	&dev_attr_lpfc_cr_count.attr,
6033	&dev_attr_lpfc_multi_ring_support.attr,
6034	&dev_attr_lpfc_multi_ring_rctl.attr,
6035	&dev_attr_lpfc_multi_ring_type.attr,
6036	&dev_attr_lpfc_fdmi_on.attr,
6037	&dev_attr_lpfc_enable_SmartSAN.attr,
6038	&dev_attr_lpfc_max_luns.attr,
6039	&dev_attr_lpfc_enable_npiv.attr,
6040	&dev_attr_lpfc_fcf_failover_policy.attr,
6041	&dev_attr_lpfc_enable_rrq.attr,
6042	&dev_attr_lpfc_fcp_wait_abts_rsp.attr,
6043	&dev_attr_nport_evt_cnt.attr,
6044	&dev_attr_board_mode.attr,
6045	&dev_attr_lpfc_xcvr_data.attr,
6046	&dev_attr_max_vpi.attr,
6047	&dev_attr_used_vpi.attr,
6048	&dev_attr_max_rpi.attr,
6049	&dev_attr_used_rpi.attr,
6050	&dev_attr_max_xri.attr,
6051	&dev_attr_used_xri.attr,
6052	&dev_attr_npiv_info.attr,
6053	&dev_attr_issue_reset.attr,
6054	&dev_attr_lpfc_poll.attr,
6055	&dev_attr_lpfc_poll_tmo.attr,
6056	&dev_attr_lpfc_task_mgmt_tmo.attr,
6057	&dev_attr_lpfc_use_msi.attr,
6058	&dev_attr_lpfc_nvme_oas.attr,
6059	&dev_attr_lpfc_nvme_embed_cmd.attr,
6060	&dev_attr_lpfc_fcp_imax.attr,
6061	&dev_attr_lpfc_force_rscn.attr,
6062	&dev_attr_lpfc_cq_poll_threshold.attr,
6063	&dev_attr_lpfc_cq_max_proc_limit.attr,
6064	&dev_attr_lpfc_fcp_cpu_map.attr,
6065	&dev_attr_lpfc_fcp_mq_threshold.attr,
6066	&dev_attr_lpfc_hdw_queue.attr,
6067	&dev_attr_lpfc_irq_chann.attr,
6068	&dev_attr_lpfc_suppress_rsp.attr,
6069	&dev_attr_lpfc_nvmet_mrq.attr,
6070	&dev_attr_lpfc_nvmet_mrq_post.attr,
6071	&dev_attr_lpfc_nvme_enable_fb.attr,
6072	&dev_attr_lpfc_nvmet_fb_size.attr,
6073	&dev_attr_lpfc_enable_bg.attr,
6074	&dev_attr_lpfc_enable_hba_reset.attr,
6075	&dev_attr_lpfc_enable_hba_heartbeat.attr,
6076	&dev_attr_lpfc_EnableXLane.attr,
6077	&dev_attr_lpfc_XLanePriority.attr,
6078	&dev_attr_lpfc_xlane_lun.attr,
6079	&dev_attr_lpfc_xlane_tgt.attr,
6080	&dev_attr_lpfc_xlane_vpt.attr,
6081	&dev_attr_lpfc_xlane_lun_state.attr,
6082	&dev_attr_lpfc_xlane_lun_status.attr,
6083	&dev_attr_lpfc_xlane_priority.attr,
6084	&dev_attr_lpfc_sg_seg_cnt.attr,
6085	&dev_attr_lpfc_max_scsicmpl_time.attr,
6086	&dev_attr_lpfc_aer_support.attr,
6087	&dev_attr_lpfc_aer_state_cleanup.attr,
6088	&dev_attr_lpfc_sriov_nr_virtfn.attr,
6089	&dev_attr_lpfc_req_fw_upgrade.attr,
6090	&dev_attr_lpfc_suppress_link_up.attr,
6091	&dev_attr_iocb_hw.attr,
6092	&dev_attr_pls.attr,
6093	&dev_attr_pt.attr,
6094	&dev_attr_txq_hw.attr,
6095	&dev_attr_txcmplq_hw.attr,
6096	&dev_attr_lpfc_sriov_hw_max_virtfn.attr,
6097	&dev_attr_protocol.attr,
6098	&dev_attr_lpfc_xlane_supported.attr,
6099	&dev_attr_lpfc_enable_mds_diags.attr,
6100	&dev_attr_lpfc_ras_fwlog_buffsize.attr,
6101	&dev_attr_lpfc_ras_fwlog_level.attr,
6102	&dev_attr_lpfc_ras_fwlog_func.attr,
6103	&dev_attr_lpfc_enable_bbcr.attr,
6104	&dev_attr_lpfc_enable_dpp.attr,
6105	&dev_attr_lpfc_enable_mi.attr,
6106	&dev_attr_cmf_info.attr,
6107	&dev_attr_lpfc_max_vmid.attr,
6108	&dev_attr_lpfc_vmid_inactivity_timeout.attr,
6109	&dev_attr_lpfc_vmid_app_header.attr,
6110	&dev_attr_lpfc_vmid_priority_tagging.attr,
6111	NULL,
6112	};
6113
6114	static const struct attribute_group lpfc_hba_attr_group = {
6115	.attrs = lpfc_hba_attrs
6116	};
6117
6118	const struct attribute_group *lpfc_hba_groups[] = {
6119	&lpfc_hba_attr_group,
6120	NULL
6121	};
6122
6123	static struct attribute *lpfc_vport_attrs[] = {
6124	&dev_attr_info.attr,
6125	&dev_attr_link_state.attr,
6126	&dev_attr_num_discovered_ports.attr,
6127	&dev_attr_lpfc_drvr_version.attr,
6128	&dev_attr_lpfc_log_verbose.attr,
6129	&dev_attr_lpfc_lun_queue_depth.attr,
6130	&dev_attr_lpfc_tgt_queue_depth.attr,
6131	&dev_attr_lpfc_nodev_tmo.attr,
6132	&dev_attr_lpfc_devloss_tmo.attr,
6133	&dev_attr_lpfc_hba_queue_depth.attr,
6134	&dev_attr_lpfc_peer_port_login.attr,
6135	&dev_attr_lpfc_restrict_login.attr,
6136	&dev_attr_lpfc_fcp_class.attr,
6137	&dev_attr_lpfc_use_adisc.attr,
6138	&dev_attr_lpfc_first_burst_size.attr,
6139	&dev_attr_lpfc_max_luns.attr,
6140	&dev_attr_nport_evt_cnt.attr,
6141	&dev_attr_npiv_info.attr,
6142	&dev_attr_lpfc_enable_da_id.attr,
6143	&dev_attr_lpfc_max_scsicmpl_time.attr,
6144	&dev_attr_lpfc_static_vport.attr,
6145	&dev_attr_cmf_info.attr,
6146	NULL,
6147	};
6148
6149	static const struct attribute_group lpfc_vport_attr_group = {
6150	.attrs = lpfc_vport_attrs
6151	};
6152
6153	const struct attribute_group *lpfc_vport_groups[] = {
6154	&lpfc_vport_attr_group,
6155	NULL
6156	};
6157
6158	/**
6159	* sysfs_ctlreg_write - Write method for writing to ctlreg
6160	* @filp: open sysfs file
6161	* @kobj: kernel kobject that contains the kernel class device.
6162	* @bin_attr: kernel attributes passed to us.
6163	* @buf: contains the data to be written to the adapter IOREG space.
6164	* @off: offset into buffer to beginning of data.
6165	* @count: bytes to transfer.
6166	*
6167	* Description:
6168	* Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
6169	* Uses the adapter io control registers to send buf contents to the adapter.
6170	*
6171	* Returns:
6172	* -ERANGE off and count combo out of range
6173	* -EINVAL off, count or buff address invalid
6174	* -EPERM adapter is offline
6175	* value of count, buf contents written
6176	**/
6177	static ssize_t
6178	sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
6179	struct bin_attribute *bin_attr,
6180	char *buf, loff_t off, size_t count)
6181	{
6182	size_t buf_off;
6183	struct device *dev = container_of(kobj, struct device, kobj);
6184	struct Scsi_Host *shost = class_to_shost(dev);
6185	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6186	struct lpfc_hba *phba = vport->phba;
6187
6188	if (phba->sli_rev >= LPFC_SLI_REV4)
6189	return -EPERM;
6190
6191	if ((off + count) > FF_REG_AREA_SIZE)
6192	return -ERANGE;
6193
6194	if (count <= LPFC_REG_WRITE_KEY_SIZE)
6195	return 0;
6196
6197	if (off % 4 || count % 4 || (unsigned long)buf % 4)
6198	return -EINVAL;
6199
6200	/* This is to protect HBA registers from accidental writes. */
6201	if (memcmp(p: buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
6202	return -EINVAL;
6203
6204	if (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
6205	return -EPERM;
6206
6207	spin_lock_irq(lock: &phba->hbalock);
6208	for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
6209	buf_off += sizeof(uint32_t))
6210	writel(val: *((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
6211	addr: phba->ctrl_regs_memmap_p + off + buf_off);
6212
6213	spin_unlock_irq(lock: &phba->hbalock);
6214
6215	return count;
6216	}
6217
6218	/**
6219	* sysfs_ctlreg_read - Read method for reading from ctlreg
6220	* @filp: open sysfs file
6221	* @kobj: kernel kobject that contains the kernel class device.
6222	* @bin_attr: kernel attributes passed to us.
6223	* @buf: if successful contains the data from the adapter IOREG space.
6224	* @off: offset into buffer to beginning of data.
6225	* @count: bytes to transfer.
6226	*
6227	* Description:
6228	* Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
6229	* Uses the adapter io control registers to read data into buf.
6230	*
6231	* Returns:
6232	* -ERANGE off and count combo out of range
6233	* -EINVAL off, count or buff address invalid
6234	* value of count, buf contents read
6235	**/
6236	static ssize_t
6237	sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
6238	struct bin_attribute *bin_attr,
6239	char *buf, loff_t off, size_t count)
6240	{
6241	size_t buf_off;
6242	uint32_t * tmp_ptr;
6243	struct device *dev = container_of(kobj, struct device, kobj);
6244	struct Scsi_Host *shost = class_to_shost(dev);
6245	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6246	struct lpfc_hba *phba = vport->phba;
6247
6248	if (phba->sli_rev >= LPFC_SLI_REV4)
6249	return -EPERM;
6250
6251	if (off > FF_REG_AREA_SIZE)
6252	return -ERANGE;
6253
6254	if ((off + count) > FF_REG_AREA_SIZE)
6255	count = FF_REG_AREA_SIZE - off;
6256
6257	if (count == 0) return 0;
6258
6259	if (off % 4 || count % 4 || (unsigned long)buf % 4)
6260	return -EINVAL;
6261
6262	spin_lock_irq(lock: &phba->hbalock);
6263
6264	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
6265	tmp_ptr = (uint32_t *)(buf + buf_off);
6266	*tmp_ptr = readl(addr: phba->ctrl_regs_memmap_p + off + buf_off);
6267	}
6268
6269	spin_unlock_irq(lock: &phba->hbalock);
6270
6271	return count;
6272	}
6273
6274	static struct bin_attribute sysfs_ctlreg_attr = {
6275	.attr = {
6276	.name = "ctlreg",
6277	.mode = S_IRUSR | S_IWUSR,
6278	},
6279	.size = 256,
6280	.read = sysfs_ctlreg_read,
6281	.write = sysfs_ctlreg_write,
6282	};
6283
6284	/**
6285	* sysfs_mbox_write - Write method for writing information via mbox
6286	* @filp: open sysfs file
6287	* @kobj: kernel kobject that contains the kernel class device.
6288	* @bin_attr: kernel attributes passed to us.
6289	* @buf: contains the data to be written to sysfs mbox.
6290	* @off: offset into buffer to beginning of data.
6291	* @count: bytes to transfer.
6292	*
6293	* Description:
6294	* Deprecated function. All mailbox access from user space is performed via the
6295	* bsg interface.
6296	*
6297	* Returns:
6298	* -EPERM operation not permitted
6299	**/
6300	static ssize_t
6301	sysfs_mbox_write(struct file *filp, struct kobject *kobj,
6302	struct bin_attribute *bin_attr,
6303	char *buf, loff_t off, size_t count)
6304	{
6305	return -EPERM;
6306	}
6307
6308	/**
6309	* sysfs_mbox_read - Read method for reading information via mbox
6310	* @filp: open sysfs file
6311	* @kobj: kernel kobject that contains the kernel class device.
6312	* @bin_attr: kernel attributes passed to us.
6313	* @buf: contains the data to be read from sysfs mbox.
6314	* @off: offset into buffer to beginning of data.
6315	* @count: bytes to transfer.
6316	*
6317	* Description:
6318	* Deprecated function. All mailbox access from user space is performed via the
6319	* bsg interface.
6320	*
6321	* Returns:
6322	* -EPERM operation not permitted
6323	**/
6324	static ssize_t
6325	sysfs_mbox_read(struct file *filp, struct kobject *kobj,
6326	struct bin_attribute *bin_attr,
6327	char *buf, loff_t off, size_t count)
6328	{
6329	return -EPERM;
6330	}
6331
6332	static struct bin_attribute sysfs_mbox_attr = {
6333	.attr = {
6334	.name = "mbox",
6335	.mode = S_IRUSR | S_IWUSR,
6336	},
6337	.size = MAILBOX_SYSFS_MAX,
6338	.read = sysfs_mbox_read,
6339	.write = sysfs_mbox_write,
6340	};
6341
6342	/**
6343	* lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
6344	* @vport: address of lpfc vport structure.
6345	*
6346	* Return codes:
6347	* zero on success
6348	* error return code from sysfs_create_bin_file()
6349	**/
6350	int
6351	lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
6352	{
6353	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6354	int error;
6355
6356	/* Virtual ports do not need ctrl_reg and mbox */
6357	if (vport->port_type == LPFC_NPIV_PORT)
6358	return 0;
6359
6360	error = sysfs_create_bin_file(kobj: &shost->shost_dev.kobj,
6361	attr: &sysfs_ctlreg_attr);
6362	if (error)
6363	goto out;
6364
6365	error = sysfs_create_bin_file(kobj: &shost->shost_dev.kobj,
6366	attr: &sysfs_mbox_attr);
6367	if (error)
6368	goto out_remove_ctlreg_attr;
6369
6370	return 0;
6371	out_remove_ctlreg_attr:
6372	sysfs_remove_bin_file(kobj: &shost->shost_dev.kobj, attr: &sysfs_ctlreg_attr);
6373	out:
6374	return error;
6375	}
6376
6377	/**
6378	* lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
6379	* @vport: address of lpfc vport structure.
6380	**/
6381	void
6382	lpfc_free_sysfs_attr(struct lpfc_vport *vport)
6383	{
6384	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6385
6386	/* Virtual ports do not need ctrl_reg and mbox */
6387	if (vport->port_type == LPFC_NPIV_PORT)
6388	return;
6389	sysfs_remove_bin_file(kobj: &shost->shost_dev.kobj, attr: &sysfs_mbox_attr);
6390	sysfs_remove_bin_file(kobj: &shost->shost_dev.kobj, attr: &sysfs_ctlreg_attr);
6391	}
6392
6393	/*
6394	* Dynamic FC Host Attributes Support
6395	*/
6396
6397	/**
6398	* lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host
6399	* @shost: kernel scsi host pointer.
6400	**/
6401	static void
6402	lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
6403	{
6404	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
6405
6406	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
6407	sizeof fc_host_symbolic_name(shost));
6408	}
6409
6410	/**
6411	* lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
6412	* @shost: kernel scsi host pointer.
6413	**/
6414	static void
6415	lpfc_get_host_port_id(struct Scsi_Host *shost)
6416	{
6417	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6418
6419	/* note: fc_myDID already in cpu endianness */
6420	fc_host_port_id(shost) = vport->fc_myDID;
6421	}
6422
6423	/**
6424	* lpfc_get_host_port_type - Set the value of the scsi host port type
6425	* @shost: kernel scsi host pointer.
6426	**/
6427	static void
6428	lpfc_get_host_port_type(struct Scsi_Host *shost)
6429	{
6430	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6431	struct lpfc_hba *phba = vport->phba;
6432
6433	if (vport->port_type == LPFC_NPIV_PORT) {
6434	fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
6435	} else if (lpfc_is_link_up(phba)) {
6436	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6437	if (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))
6438	fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
6439	else
6440	fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
6441	} else {
6442	if (test_bit(FC_FABRIC, &vport->fc_flag))
6443	fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
6444	else
6445	fc_host_port_type(shost) = FC_PORTTYPE_PTP;
6446	}
6447	} else
6448	fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
6449	}
6450
6451	/**
6452	* lpfc_get_host_port_state - Set the value of the scsi host port state
6453	* @shost: kernel scsi host pointer.
6454	**/
6455	static void
6456	lpfc_get_host_port_state(struct Scsi_Host *shost)
6457	{
6458	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6459	struct lpfc_hba *phba = vport->phba;
6460
6461	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
6462	fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
6463	else {
6464	switch (phba->link_state) {
6465	case LPFC_LINK_UNKNOWN:
6466	case LPFC_LINK_DOWN:
6467	fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
6468	break;
6469	case LPFC_LINK_UP:
6470	case LPFC_CLEAR_LA:
6471	case LPFC_HBA_READY:
6472	/* Links up, reports port state accordingly */
6473	if (vport->port_state < LPFC_VPORT_READY)
6474	fc_host_port_state(shost) =
6475	FC_PORTSTATE_BYPASSED;
6476	else
6477	fc_host_port_state(shost) =
6478	FC_PORTSTATE_ONLINE;
6479	break;
6480	case LPFC_HBA_ERROR:
6481	fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
6482	break;
6483	default:
6484	fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
6485	break;
6486	}
6487	}
6488	}
6489
6490	/**
6491	* lpfc_get_host_speed - Set the value of the scsi host speed
6492	* @shost: kernel scsi host pointer.
6493	**/
6494	static void
6495	lpfc_get_host_speed(struct Scsi_Host *shost)
6496	{
6497	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6498	struct lpfc_hba *phba = vport->phba;
6499
6500	if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
6501	switch(phba->fc_linkspeed) {
6502	case LPFC_LINK_SPEED_1GHZ:
6503	fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
6504	break;
6505	case LPFC_LINK_SPEED_2GHZ:
6506	fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
6507	break;
6508	case LPFC_LINK_SPEED_4GHZ:
6509	fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
6510	break;
6511	case LPFC_LINK_SPEED_8GHZ:
6512	fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
6513	break;
6514	case LPFC_LINK_SPEED_10GHZ:
6515	fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
6516	break;
6517	case LPFC_LINK_SPEED_16GHZ:
6518	fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
6519	break;
6520	case LPFC_LINK_SPEED_32GHZ:
6521	fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
6522	break;
6523	case LPFC_LINK_SPEED_64GHZ:
6524	fc_host_speed(shost) = FC_PORTSPEED_64GBIT;
6525	break;
6526	case LPFC_LINK_SPEED_128GHZ:
6527	fc_host_speed(shost) = FC_PORTSPEED_128GBIT;
6528	break;
6529	case LPFC_LINK_SPEED_256GHZ:
6530	fc_host_speed(shost) = FC_PORTSPEED_256GBIT;
6531	break;
6532	default:
6533	fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6534	break;
6535	}
6536	} else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) {
6537	switch (phba->fc_linkspeed) {
6538	case LPFC_ASYNC_LINK_SPEED_1GBPS:
6539	fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
6540	break;
6541	case LPFC_ASYNC_LINK_SPEED_10GBPS:
6542	fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
6543	break;
6544	case LPFC_ASYNC_LINK_SPEED_20GBPS:
6545	fc_host_speed(shost) = FC_PORTSPEED_20GBIT;
6546	break;
6547	case LPFC_ASYNC_LINK_SPEED_25GBPS:
6548	fc_host_speed(shost) = FC_PORTSPEED_25GBIT;
6549	break;
6550	case LPFC_ASYNC_LINK_SPEED_40GBPS:
6551	fc_host_speed(shost) = FC_PORTSPEED_40GBIT;
6552	break;
6553	case LPFC_ASYNC_LINK_SPEED_100GBPS:
6554	fc_host_speed(shost) = FC_PORTSPEED_100GBIT;
6555	break;
6556	default:
6557	fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6558	break;
6559	}
6560	} else
6561	fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6562	}
6563
6564	/**
6565	* lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
6566	* @shost: kernel scsi host pointer.
6567	**/
6568	static void
6569	lpfc_get_host_fabric_name (struct Scsi_Host *shost)
6570	{
6571	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6572	struct lpfc_hba *phba = vport->phba;
6573	u64 node_name;
6574
6575	if (vport->port_state > LPFC_FLOGI &&
6576	(test_bit(FC_FABRIC, &vport->fc_flag) ||
6577	(phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
6578	test_bit(FC_PUBLIC_LOOP, &vport->fc_flag))))
6579	node_name = wwn_to_u64(wwn: phba->fc_fabparam.nodeName.u.wwn);
6580	else
6581	/* fabric is local port if there is no F/FL_Port */
6582	node_name = 0;
6583
6584	fc_host_fabric_name(shost) = node_name;
6585	}
6586
6587	/**
6588	* lpfc_get_stats - Return statistical information about the adapter
6589	* @shost: kernel scsi host pointer.
6590	*
6591	* Notes:
6592	* NULL on error for link down, no mbox pool, sli2 active,
6593	* management not allowed, memory allocation error, or mbox error.
6594	*
6595	* Returns:
6596	* NULL for error
6597	* address of the adapter host statistics
6598	**/
6599	static struct fc_host_statistics *
6600	lpfc_get_stats(struct Scsi_Host *shost)
6601	{
6602	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6603	struct lpfc_hba *phba = vport->phba;
6604	struct lpfc_sli *psli = &phba->sli;
6605	struct fc_host_statistics *hs = &phba->link_stats;
6606	struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
6607	LPFC_MBOXQ_t *pmboxq;
6608	MAILBOX_t *pmb;
6609	int rc = 0;
6610
6611	/*
6612	* prevent udev from issuing mailbox commands until the port is
6613	* configured.
6614	*/
6615	if (phba->link_state < LPFC_LINK_DOWN ||
6616	!phba->mbox_mem_pool ||
6617	(phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
6618	return NULL;
6619
6620	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
6621	return NULL;
6622
6623	pmboxq = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
6624	if (!pmboxq)
6625	return NULL;
6626	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
6627
6628	pmb = &pmboxq->u.mb;
6629	pmb->mbxCommand = MBX_READ_STATUS;
6630	pmb->mbxOwner = OWN_HOST;
6631	pmboxq->ctx_buf = NULL;
6632	pmboxq->vport = vport;
6633
6634	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) {
6635	rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6636	if (rc != MBX_SUCCESS) {
6637	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6638	return NULL;
6639	}
6640	} else {
6641	rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6642	if (rc != MBX_SUCCESS) {
6643	if (rc != MBX_TIMEOUT)
6644	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6645	return NULL;
6646	}
6647	}
6648
6649	memset(hs, 0, sizeof (struct fc_host_statistics));
6650
6651	hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
6652	hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
6653
6654	/*
6655	* The MBX_READ_STATUS returns tx_k_bytes which has to be
6656	* converted to words.
6657	*
6658	* Check if extended byte flag is set, to know when to collect upper
6659	* bits of 64 bit wide statistics counter.
6660	*/
6661	if (pmb->un.varRdStatus.xkb & RD_ST_XKB) {
6662	hs->tx_words = (u64)
6663	((((u64)(pmb->un.varRdStatus.xmit_xkb &
6664	RD_ST_XMIT_XKB_MASK) << 32) |
6665	(u64)pmb->un.varRdStatus.xmitByteCnt) *
6666	(u64)256);
6667	hs->rx_words = (u64)
6668	((((u64)(pmb->un.varRdStatus.rcv_xkb &
6669	RD_ST_RCV_XKB_MASK) << 32) |
6670	(u64)pmb->un.varRdStatus.rcvByteCnt) *
6671	(u64)256);
6672	} else {
6673	hs->tx_words = (uint64_t)
6674	((uint64_t)pmb->un.varRdStatus.xmitByteCnt
6675	* (uint64_t)256);
6676	hs->rx_words = (uint64_t)
6677	((uint64_t)pmb->un.varRdStatus.rcvByteCnt
6678	* (uint64_t)256);
6679	}
6680
6681	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
6682	pmb->mbxCommand = MBX_READ_LNK_STAT;
6683	pmb->mbxOwner = OWN_HOST;
6684	pmboxq->ctx_buf = NULL;
6685	pmboxq->vport = vport;
6686
6687	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) {
6688	rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6689	if (rc != MBX_SUCCESS) {
6690	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6691	return NULL;
6692	}
6693	} else {
6694	rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6695	if (rc != MBX_SUCCESS) {
6696	if (rc != MBX_TIMEOUT)
6697	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6698	return NULL;
6699	}
6700	}
6701
6702	hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
6703	hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
6704	hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
6705	hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
6706	hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
6707	hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
6708	hs->error_frames = pmb->un.varRdLnk.crcCnt;
6709
6710	hs->cn_sig_warn = atomic64_read(v: &phba->cgn_acqe_stat.warn);
6711	hs->cn_sig_alarm = atomic64_read(v: &phba->cgn_acqe_stat.alarm);
6712
6713	hs->link_failure_count -= lso->link_failure_count;
6714	hs->loss_of_sync_count -= lso->loss_of_sync_count;
6715	hs->loss_of_signal_count -= lso->loss_of_signal_count;
6716	hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
6717	hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
6718	hs->invalid_crc_count -= lso->invalid_crc_count;
6719	hs->error_frames -= lso->error_frames;
6720
6721	if (phba->hba_flag & HBA_FCOE_MODE) {
6722	hs->lip_count = -1;
6723	hs->nos_count = (phba->link_events >> 1);
6724	hs->nos_count -= lso->link_events;
6725	} else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6726	hs->lip_count = (phba->fc_eventTag >> 1);
6727	hs->lip_count -= lso->link_events;
6728	hs->nos_count = -1;
6729	} else {
6730	hs->lip_count = -1;
6731	hs->nos_count = (phba->fc_eventTag >> 1);
6732	hs->nos_count -= lso->link_events;
6733	}
6734
6735	hs->dumped_frames = -1;
6736
6737	hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start;
6738
6739	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6740
6741	return hs;
6742	}
6743
6744	/**
6745	* lpfc_reset_stats - Copy the adapter link stats information
6746	* @shost: kernel scsi host pointer.
6747	**/
6748	static void
6749	lpfc_reset_stats(struct Scsi_Host *shost)
6750	{
6751	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6752	struct lpfc_hba *phba = vport->phba;
6753	struct lpfc_sli *psli = &phba->sli;
6754	struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
6755	LPFC_MBOXQ_t *pmboxq;
6756	MAILBOX_t *pmb;
6757	int rc = 0;
6758
6759	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
6760	return;
6761
6762	pmboxq = mempool_alloc(pool: phba->mbox_mem_pool, GFP_KERNEL);
6763	if (!pmboxq)
6764	return;
6765	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
6766
6767	pmb = &pmboxq->u.mb;
6768	pmb->mbxCommand = MBX_READ_STATUS;
6769	pmb->mbxOwner = OWN_HOST;
6770	pmb->un.varWords[0] = 0x1; /* reset request */
6771	pmboxq->ctx_buf = NULL;
6772	pmboxq->vport = vport;
6773
6774	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) ||
6775	!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6776	rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6777	if (rc != MBX_SUCCESS) {
6778	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6779	return;
6780	}
6781	} else {
6782	rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6783	if (rc != MBX_SUCCESS) {
6784	if (rc != MBX_TIMEOUT)
6785	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6786	return;
6787	}
6788	}
6789
6790	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
6791	pmb->mbxCommand = MBX_READ_LNK_STAT;
6792	pmb->mbxOwner = OWN_HOST;
6793	pmboxq->ctx_buf = NULL;
6794	pmboxq->vport = vport;
6795
6796	if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) ||
6797	!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6798	rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6799	if (rc != MBX_SUCCESS) {
6800	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6801	return;
6802	}
6803	} else {
6804	rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6805	if (rc != MBX_SUCCESS) {
6806	if (rc != MBX_TIMEOUT)
6807	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6808	return;
6809	}
6810	}
6811
6812	lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
6813	lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
6814	lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
6815	lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
6816	lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
6817	lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
6818	lso->error_frames = pmb->un.varRdLnk.crcCnt;
6819	if (phba->hba_flag & HBA_FCOE_MODE)
6820	lso->link_events = (phba->link_events >> 1);
6821	else
6822	lso->link_events = (phba->fc_eventTag >> 1);
6823
6824	atomic64_set(v: &phba->cgn_acqe_stat.warn, i: 0);
6825	atomic64_set(v: &phba->cgn_acqe_stat.alarm, i: 0);
6826
6827	memset(&shost_to_fc_host(shost)->fpin_stats, 0,
6828	sizeof(shost_to_fc_host(shost)->fpin_stats));
6829
6830	psli->stats_start = ktime_get_seconds();
6831
6832	mempool_free(element: pmboxq, pool: phba->mbox_mem_pool);
6833
6834	return;
6835	}
6836
6837	/*
6838	* The LPFC driver treats linkdown handling as target loss events so there
6839	* are no sysfs handlers for link_down_tmo.
6840	*/
6841
6842	/**
6843	* lpfc_get_node_by_target - Return the nodelist for a target
6844	* @starget: kernel scsi target pointer.
6845	*
6846	* Returns:
6847	* address of the node list if found
6848	* NULL target not found
6849	**/
6850	static struct lpfc_nodelist *
6851	lpfc_get_node_by_target(struct scsi_target *starget)
6852	{
6853	struct Scsi_Host *shost = dev_to_shost(dev: starget->dev.parent);
6854	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6855	struct lpfc_nodelist *ndlp;
6856	unsigned long iflags;
6857
6858	spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags);
6859	/* Search for this, mapped, target ID */
6860	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6861	if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
6862	starget->id == ndlp->nlp_sid) {
6863	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock,
6864	flags: iflags);
6865	return ndlp;
6866	}
6867	}
6868	spin_unlock_irqrestore(lock: &vport->fc_nodes_list_lock, flags: iflags);
6869	return NULL;
6870	}
6871
6872	/**
6873	* lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
6874	* @starget: kernel scsi target pointer.
6875	**/
6876	static void
6877	lpfc_get_starget_port_id(struct scsi_target *starget)
6878	{
6879	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
6880
6881	fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
6882	}
6883
6884	/**
6885	* lpfc_get_starget_node_name - Set the target node name
6886	* @starget: kernel scsi target pointer.
6887	*
6888	* Description: Set the target node name to the ndlp node name wwn or zero.
6889	**/
6890	static void
6891	lpfc_get_starget_node_name(struct scsi_target *starget)
6892	{
6893	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
6894
6895	fc_starget_node_name(starget) =
6896	ndlp ? wwn_to_u64(wwn: ndlp->nlp_nodename.u.wwn) : 0;
6897	}
6898
6899	/**
6900	* lpfc_get_starget_port_name - Set the target port name
6901	* @starget: kernel scsi target pointer.
6902	*
6903	* Description: set the target port name to the ndlp port name wwn or zero.
6904	**/
6905	static void
6906	lpfc_get_starget_port_name(struct scsi_target *starget)
6907	{
6908	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
6909
6910	fc_starget_port_name(starget) =
6911	ndlp ? wwn_to_u64(wwn: ndlp->nlp_portname.u.wwn) : 0;
6912	}
6913
6914	/**
6915	* lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
6916	* @rport: fc rport address.
6917	* @timeout: new value for dev loss tmo.
6918	*
6919	* Description:
6920	* If timeout is non zero set the dev_loss_tmo to timeout, else set
6921	* dev_loss_tmo to one.
6922	**/
6923	static void
6924	lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
6925	{
6926	struct lpfc_rport_data *rdata = rport->dd_data;
6927	struct lpfc_nodelist *ndlp = rdata->pnode;
6928	#if (IS_ENABLED(CONFIG_NVME_FC))
6929	struct lpfc_nvme_rport *nrport = NULL;
6930	#endif
6931
6932	if (timeout)
6933	rport->dev_loss_tmo = timeout;
6934	else
6935	rport->dev_loss_tmo = 1;
6936
6937	if (!ndlp) {
6938	dev_info(&rport->dev, "Cannot find remote node to "
6939	"set rport dev loss tmo, port_id x%x\n",
6940	rport->port_id);
6941	return;
6942	}
6943
6944	#if (IS_ENABLED(CONFIG_NVME_FC))
6945	nrport = lpfc_ndlp_get_nrport(ndlp);
6946
6947	if (nrport && nrport->remoteport)
6948	nvme_fc_set_remoteport_devloss(remoteport: nrport->remoteport,
6949	dev_loss_tmo: rport->dev_loss_tmo);
6950	#endif
6951	}
6952
6953	/*
6954	* lpfc_rport_show_function - Return rport target information
6955	*
6956	* Description:
6957	* Macro that uses field to generate a function with the name lpfc_show_rport_
6958	*
6959	* lpfc_show_rport_##field: returns the bytes formatted in buf
6960	* @cdev: class converted to an fc_rport.
6961	* @buf: on return contains the target_field or zero.
6962	*
6963	* Returns: size of formatted string.
6964	**/
6965	#define lpfc_rport_show_function(field, format_string, sz, cast) \
6966	static ssize_t \
6967	lpfc_show_rport_##field (struct device *dev, \
6968	struct device_attribute *attr, \
6969	char *buf) \
6970	{ \
6971	struct fc_rport *rport = transport_class_to_rport(dev); \
6972	struct lpfc_rport_data *rdata = rport->hostdata; \
6973	return scnprintf(buf, sz, format_string, \
6974	(rdata->target) ? cast rdata->target->field : 0); \
6975	}
6976
6977	#define lpfc_rport_rd_attr(field, format_string, sz) \
6978	lpfc_rport_show_function(field, format_string, sz, ) \
6979	static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
6980
6981	/**
6982	* lpfc_set_vport_symbolic_name - Set the vport's symbolic name
6983	* @fc_vport: The fc_vport who's symbolic name has been changed.
6984	*
6985	* Description:
6986	* This function is called by the transport after the @fc_vport's symbolic name
6987	* has been changed. This function re-registers the symbolic name with the
6988	* switch to propagate the change into the fabric if the vport is active.
6989	**/
6990	static void
6991	lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
6992	{
6993	struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
6994
6995	if (vport->port_state == LPFC_VPORT_READY)
6996	lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
6997	}
6998
6999	/**
7000	* lpfc_hba_log_verbose_init - Set hba's log verbose level
7001	* @phba: Pointer to lpfc_hba struct.
7002	* @verbose: Verbose level to set.
7003	*
7004	* This function is called by the lpfc_get_cfgparam() routine to set the
7005	* module lpfc_log_verbose into the @phba cfg_log_verbose for use with
7006	* log message according to the module's lpfc_log_verbose parameter setting
7007	* before hba port or vport created.
7008	**/
7009	static void
7010	lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
7011	{
7012	phba->cfg_log_verbose = verbose;
7013	}
7014
7015	struct fc_function_template lpfc_transport_functions = {
7016	/* fixed attributes the driver supports */
7017	.show_host_node_name = 1,
7018	.show_host_port_name = 1,
7019	.show_host_supported_classes = 1,
7020	.show_host_supported_fc4s = 1,
7021	.show_host_supported_speeds = 1,
7022	.show_host_maxframe_size = 1,
7023
7024	.get_host_symbolic_name = lpfc_get_host_symbolic_name,
7025	.show_host_symbolic_name = 1,
7026
7027	/* dynamic attributes the driver supports */
7028	.get_host_port_id = lpfc_get_host_port_id,
7029	.show_host_port_id = 1,
7030
7031	.get_host_port_type = lpfc_get_host_port_type,
7032	.show_host_port_type = 1,
7033
7034	.get_host_port_state = lpfc_get_host_port_state,
7035	.show_host_port_state = 1,
7036
7037	/* active_fc4s is shown but doesn't change (thus no get function) */
7038	.show_host_active_fc4s = 1,
7039
7040	.get_host_speed = lpfc_get_host_speed,
7041	.show_host_speed = 1,
7042
7043	.get_host_fabric_name = lpfc_get_host_fabric_name,
7044	.show_host_fabric_name = 1,
7045
7046	/*
7047	* The LPFC driver treats linkdown handling as target loss events
7048	* so there are no sysfs handlers for link_down_tmo.
7049	*/
7050
7051	.get_fc_host_stats = lpfc_get_stats,
7052	.reset_fc_host_stats = lpfc_reset_stats,
7053
7054	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
7055	.show_rport_maxframe_size = 1,
7056	.show_rport_supported_classes = 1,
7057
7058	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
7059	.show_rport_dev_loss_tmo = 1,
7060
7061	.get_starget_port_id = lpfc_get_starget_port_id,
7062	.show_starget_port_id = 1,
7063
7064	.get_starget_node_name = lpfc_get_starget_node_name,
7065	.show_starget_node_name = 1,
7066
7067	.get_starget_port_name = lpfc_get_starget_port_name,
7068	.show_starget_port_name = 1,
7069
7070	.issue_fc_host_lip = lpfc_issue_lip,
7071	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
7072	.terminate_rport_io = lpfc_terminate_rport_io,
7073
7074	.dd_fcvport_size = sizeof(struct lpfc_vport *),
7075
7076	.vport_disable = lpfc_vport_disable,
7077
7078	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
7079
7080	.bsg_request = lpfc_bsg_request,
7081	.bsg_timeout = lpfc_bsg_timeout,
7082	};
7083
7084	struct fc_function_template lpfc_vport_transport_functions = {
7085	/* fixed attributes the driver supports */
7086	.show_host_node_name = 1,
7087	.show_host_port_name = 1,
7088	.show_host_supported_classes = 1,
7089	.show_host_supported_fc4s = 1,
7090	.show_host_supported_speeds = 1,
7091	.show_host_maxframe_size = 1,
7092
7093	.get_host_symbolic_name = lpfc_get_host_symbolic_name,
7094	.show_host_symbolic_name = 1,
7095
7096	/* dynamic attributes the driver supports */
7097	.get_host_port_id = lpfc_get_host_port_id,
7098	.show_host_port_id = 1,
7099
7100	.get_host_port_type = lpfc_get_host_port_type,
7101	.show_host_port_type = 1,
7102
7103	.get_host_port_state = lpfc_get_host_port_state,
7104	.show_host_port_state = 1,
7105
7106	/* active_fc4s is shown but doesn't change (thus no get function) */
7107	.show_host_active_fc4s = 1,
7108
7109	.get_host_speed = lpfc_get_host_speed,
7110	.show_host_speed = 1,
7111
7112	.get_host_fabric_name = lpfc_get_host_fabric_name,
7113	.show_host_fabric_name = 1,
7114
7115	/*
7116	* The LPFC driver treats linkdown handling as target loss events
7117	* so there are no sysfs handlers for link_down_tmo.
7118	*/
7119
7120	.get_fc_host_stats = lpfc_get_stats,
7121	.reset_fc_host_stats = lpfc_reset_stats,
7122
7123	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
7124	.show_rport_maxframe_size = 1,
7125	.show_rport_supported_classes = 1,
7126
7127	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
7128	.show_rport_dev_loss_tmo = 1,
7129
7130	.get_starget_port_id = lpfc_get_starget_port_id,
7131	.show_starget_port_id = 1,
7132
7133	.get_starget_node_name = lpfc_get_starget_node_name,
7134	.show_starget_node_name = 1,
7135
7136	.get_starget_port_name = lpfc_get_starget_port_name,
7137	.show_starget_port_name = 1,
7138
7139	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
7140	.terminate_rport_io = lpfc_terminate_rport_io,
7141
7142	.vport_disable = lpfc_vport_disable,
7143
7144	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
7145	};
7146
7147	/**
7148	* lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE
7149	* Mode
7150	* @phba: lpfc_hba pointer.
7151	**/
7152	static void
7153	lpfc_get_hba_function_mode(struct lpfc_hba *phba)
7154	{
7155	/* If the adapter supports FCoE mode */
7156	switch (phba->pcidev->device) {
7157	case PCI_DEVICE_ID_SKYHAWK:
7158	case PCI_DEVICE_ID_SKYHAWK_VF:
7159	case PCI_DEVICE_ID_LANCER_FCOE:
7160	case PCI_DEVICE_ID_LANCER_FCOE_VF:
7161	case PCI_DEVICE_ID_ZEPHYR_DCSP:
7162	case PCI_DEVICE_ID_TIGERSHARK:
7163	case PCI_DEVICE_ID_TOMCAT:
7164	phba->hba_flag |= HBA_FCOE_MODE;
7165	break;
7166	default:
7167	/* for others, clear the flag */
7168	phba->hba_flag &= ~HBA_FCOE_MODE;
7169	}
7170	}
7171
7172	/**
7173	* lpfc_get_cfgparam - Used during probe_one to init the adapter structure
7174	* @phba: lpfc_hba pointer.
7175	**/
7176	void
7177	lpfc_get_cfgparam(struct lpfc_hba *phba)
7178	{
7179	lpfc_hba_log_verbose_init(phba, verbose: lpfc_log_verbose);
7180	lpfc_fcp_io_sched_init(phba, val: lpfc_fcp_io_sched);
7181	lpfc_ns_query_init(phba, val: lpfc_ns_query);
7182	lpfc_fcp2_no_tgt_reset_init(phba, val: lpfc_fcp2_no_tgt_reset);
7183	lpfc_cr_delay_init(phba, val: lpfc_cr_delay);
7184	lpfc_cr_count_init(phba, val: lpfc_cr_count);
7185	lpfc_multi_ring_support_init(phba, val: lpfc_multi_ring_support);
7186	lpfc_multi_ring_rctl_init(phba, val: lpfc_multi_ring_rctl);
7187	lpfc_multi_ring_type_init(phba, val: lpfc_multi_ring_type);
7188	lpfc_ack0_init(phba, val: lpfc_ack0);
7189	lpfc_xri_rebalancing_init(phba, val: lpfc_xri_rebalancing);
7190	lpfc_topology_init(phba, val: lpfc_topology);
7191	lpfc_link_speed_init(phba, val: lpfc_link_speed);
7192	lpfc_poll_tmo_init(phba, val: lpfc_poll_tmo);
7193	lpfc_task_mgmt_tmo_init(phba, val: lpfc_task_mgmt_tmo);
7194	lpfc_enable_npiv_init(phba, val: lpfc_enable_npiv);
7195	lpfc_fcf_failover_policy_init(phba, val: lpfc_fcf_failover_policy);
7196	lpfc_enable_rrq_init(phba, val: lpfc_enable_rrq);
7197	lpfc_fcp_wait_abts_rsp_init(phba, val: lpfc_fcp_wait_abts_rsp);
7198	lpfc_fdmi_on_init(phba, val: lpfc_fdmi_on);
7199	lpfc_enable_SmartSAN_init(phba, val: lpfc_enable_SmartSAN);
7200	lpfc_use_msi_init(phba, val: lpfc_use_msi);
7201	lpfc_nvme_oas_init(phba, val: lpfc_nvme_oas);
7202	lpfc_nvme_embed_cmd_init(phba, val: lpfc_nvme_embed_cmd);
7203	lpfc_fcp_imax_init(phba, val: lpfc_fcp_imax);
7204	lpfc_force_rscn_init(phba, val: lpfc_force_rscn);
7205	lpfc_cq_poll_threshold_init(phba, val: lpfc_cq_poll_threshold);
7206	lpfc_cq_max_proc_limit_init(phba, val: lpfc_cq_max_proc_limit);
7207	lpfc_fcp_cpu_map_init(phba, val: lpfc_fcp_cpu_map);
7208	lpfc_enable_hba_reset_init(phba, val: lpfc_enable_hba_reset);
7209	lpfc_enable_hba_heartbeat_init(phba, val: lpfc_enable_hba_heartbeat);
7210
7211	lpfc_EnableXLane_init(phba, val: lpfc_EnableXLane);
7212	/* VMID Inits */
7213	lpfc_max_vmid_init(phba, val: lpfc_max_vmid);
7214	lpfc_vmid_inactivity_timeout_init(phba, val: lpfc_vmid_inactivity_timeout);
7215	lpfc_vmid_app_header_init(phba, val: lpfc_vmid_app_header);
7216	lpfc_vmid_priority_tagging_init(phba, val: lpfc_vmid_priority_tagging);
7217	if (phba->sli_rev != LPFC_SLI_REV4)
7218	phba->cfg_EnableXLane = 0;
7219	lpfc_XLanePriority_init(phba, val: lpfc_XLanePriority);
7220
7221	memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
7222	memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
7223	phba->cfg_oas_lun_state = 0;
7224	phba->cfg_oas_lun_status = 0;
7225	phba->cfg_oas_flags = 0;
7226	phba->cfg_oas_priority = 0;
7227	lpfc_enable_bg_init(phba, val: lpfc_enable_bg);
7228	lpfc_prot_mask_init(phba, val: lpfc_prot_mask);
7229	lpfc_prot_guard_init(phba, val: lpfc_prot_guard);
7230	if (phba->sli_rev == LPFC_SLI_REV4)
7231	phba->cfg_poll = 0;
7232	else
7233	phba->cfg_poll = lpfc_poll;
7234
7235	/* Get the function mode */
7236	lpfc_get_hba_function_mode(phba);
7237
7238	/* BlockGuard allowed for FC only. */
7239	if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) {
7240	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7241	"0581 BlockGuard feature not supported\n");
7242	/* If set, clear the BlockGuard support param */
7243	phba->cfg_enable_bg = 0;
7244	} else if (phba->cfg_enable_bg) {
7245	phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
7246	}
7247
7248	lpfc_suppress_rsp_init(phba, val: lpfc_suppress_rsp);
7249
7250	lpfc_enable_fc4_type_init(phba, val: lpfc_enable_fc4_type);
7251	lpfc_nvmet_mrq_init(phba, val: lpfc_nvmet_mrq);
7252	lpfc_nvmet_mrq_post_init(phba, val: lpfc_nvmet_mrq_post);
7253
7254	/* Initialize first burst. Target vs Initiator are different. */
7255	lpfc_nvme_enable_fb_init(phba, val: lpfc_nvme_enable_fb);
7256	lpfc_nvmet_fb_size_init(phba, val: lpfc_nvmet_fb_size);
7257	lpfc_fcp_mq_threshold_init(phba, val: lpfc_fcp_mq_threshold);
7258	lpfc_hdw_queue_init(phba, val: lpfc_hdw_queue);
7259	lpfc_irq_chann_init(phba, val: lpfc_irq_chann);
7260	lpfc_enable_bbcr_init(phba, val: lpfc_enable_bbcr);
7261	lpfc_enable_dpp_init(phba, val: lpfc_enable_dpp);
7262	lpfc_enable_mi_init(phba, val: lpfc_enable_mi);
7263
7264	phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF;
7265	phba->cmf_active_mode = LPFC_CFG_OFF;
7266	if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX ||
7267	lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN)
7268	lpfc_fabric_cgn_frequency = 100; /* 100 ms default */
7269
7270	if (phba->sli_rev != LPFC_SLI_REV4) {
7271	/* NVME only supported on SLI4 */
7272	phba->nvmet_support = 0;
7273	phba->cfg_nvmet_mrq = 0;
7274	phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
7275	phba->cfg_enable_bbcr = 0;
7276	phba->cfg_xri_rebalancing = 0;
7277	} else {
7278	/* We MUST have FCP support */
7279	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
7280	phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP;
7281	}
7282
7283	phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1;
7284
7285	phba->cfg_enable_pbde = 0;
7286
7287	/* A value of 0 means use the number of CPUs found in the system */
7288	if (phba->cfg_hdw_queue == 0)
7289	phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
7290	if (phba->cfg_irq_chann == 0)
7291	phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
7292	if (phba->cfg_irq_chann > phba->cfg_hdw_queue &&
7293	phba->sli_rev == LPFC_SLI_REV4)
7294	phba->cfg_irq_chann = phba->cfg_hdw_queue;
7295
7296	lpfc_sg_seg_cnt_init(phba, val: lpfc_sg_seg_cnt);
7297	lpfc_hba_queue_depth_init(phba, val: lpfc_hba_queue_depth);
7298	lpfc_sriov_nr_virtfn_init(phba, val: lpfc_sriov_nr_virtfn);
7299	lpfc_request_firmware_upgrade_init(phba, val: lpfc_req_fw_upgrade);
7300	lpfc_suppress_link_up_init(phba, val: lpfc_suppress_link_up);
7301	lpfc_delay_discovery_init(phba, val: lpfc_delay_discovery);
7302	lpfc_sli_mode_init(phba, val: lpfc_sli_mode);
7303	lpfc_enable_mds_diags_init(phba, val: lpfc_enable_mds_diags);
7304	lpfc_ras_fwlog_buffsize_init(phba, val: lpfc_ras_fwlog_buffsize);
7305	lpfc_ras_fwlog_level_init(phba, val: lpfc_ras_fwlog_level);
7306	lpfc_ras_fwlog_func_init(phba, val: lpfc_ras_fwlog_func);
7307
7308	return;
7309	}
7310
7311	/**
7312	* lpfc_nvme_mod_param_dep - Adjust module parameter value based on
7313	* dependencies between protocols and roles.
7314	* @phba: lpfc_hba pointer.
7315	**/
7316	void
7317	lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
7318	{
7319	int logit = 0;
7320
7321	if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) {
7322	phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
7323	logit = 1;
7324	}
7325	if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) {
7326	phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
7327	logit = 1;
7328	}
7329	if (phba->cfg_irq_chann > phba->cfg_hdw_queue) {
7330	phba->cfg_irq_chann = phba->cfg_hdw_queue;
7331	logit = 1;
7332	}
7333	if (logit)
7334	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7335	"2006 Reducing Queues - CPU limitation: "
7336	"IRQ %d HDWQ %d\n",
7337	phba->cfg_irq_chann,
7338	phba->cfg_hdw_queue);
7339
7340	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
7341	phba->nvmet_support) {
7342	phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP;
7343
7344	lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
7345	"6013 %s x%x fb_size x%x, fb_max x%x\n",
7346	"NVME Target PRLI ACC enable_fb ",
7347	phba->cfg_nvme_enable_fb,
7348	phba->cfg_nvmet_fb_size,
7349	LPFC_NVMET_FB_SZ_MAX);
7350
7351	if (phba->cfg_nvme_enable_fb == 0)
7352	phba->cfg_nvmet_fb_size = 0;
7353	else {
7354	if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX)
7355	phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX;
7356	}
7357
7358	if (!phba->cfg_nvmet_mrq)
7359	phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
7360
7361	/* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */
7362	if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) {
7363	phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
7364	lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
7365	"6018 Adjust lpfc_nvmet_mrq to %d\n",
7366	phba->cfg_nvmet_mrq);
7367	}
7368	if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
7369	phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
7370
7371	} else {
7372	/* Not NVME Target mode. Turn off Target parameters. */
7373	phba->nvmet_support = 0;
7374	phba->cfg_nvmet_mrq = 0;
7375	phba->cfg_nvmet_fb_size = 0;
7376	}
7377	}
7378
7379	/**
7380	* lpfc_get_vport_cfgparam - Used during port create, init the vport structure
7381	* @vport: lpfc_vport pointer.
7382	**/
7383	void
7384	lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
7385	{
7386	lpfc_log_verbose_init(vport, val: lpfc_log_verbose);
7387	lpfc_lun_queue_depth_init(vport, val: lpfc_lun_queue_depth);
7388	lpfc_tgt_queue_depth_init(vport, val: lpfc_tgt_queue_depth);
7389	lpfc_devloss_tmo_init(vport, val: lpfc_devloss_tmo);
7390	lpfc_nodev_tmo_init(vport, val: lpfc_nodev_tmo);
7391	lpfc_peer_port_login_init(vport, val: lpfc_peer_port_login);
7392	lpfc_restrict_login_init(vport, val: lpfc_restrict_login);
7393	lpfc_fcp_class_init(vport, val: lpfc_fcp_class);
7394	lpfc_use_adisc_init(vport, val: lpfc_use_adisc);
7395	lpfc_first_burst_size_init(vport, val: lpfc_first_burst_size);
7396	lpfc_max_scsicmpl_time_init(vport, val: lpfc_max_scsicmpl_time);
7397	lpfc_discovery_threads_init(vport, val: lpfc_discovery_threads);
7398	lpfc_max_luns_init(vport, val: lpfc_max_luns);
7399	lpfc_scan_down_init(vport, val: lpfc_scan_down);
7400	lpfc_enable_da_id_init(vport, val: lpfc_enable_da_id);
7401	return;
7402	}
7403