xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_os.c (revision 25b892b5)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * QLogic Fibre Channel HBA Driver
4  * Copyright (c)  2003-2014 QLogic Corporation
5  */
6 #include "qla_def.h"
7 
8 #include <linux/moduleparam.h>
9 #include <linux/vmalloc.h>
10 #include <linux/delay.h>
11 #include <linux/kthread.h>
12 #include <linux/mutex.h>
13 #include <linux/kobject.h>
14 #include <linux/slab.h>
15 #include <linux/blk-mq-pci.h>
16 #include <linux/refcount.h>
17 #include <linux/crash_dump.h>
18 
19 #include <scsi/scsi_tcq.h>
20 #include <scsi/scsicam.h>
21 #include <scsi/scsi_transport.h>
22 #include <scsi/scsi_transport_fc.h>
23 
24 #include "qla_target.h"
25 
26 /*
27  * Driver version
28  */
29 char qla2x00_version_str[40];
30 
31 static int apidev_major;
32 
33 /*
34  * SRB allocation cache
35  */
36 struct kmem_cache *srb_cachep;
37 
38 int ql2xfulldump_on_mpifail;
39 module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR);
40 MODULE_PARM_DESC(ql2xfulldump_on_mpifail,
41 		 "Set this to take full dump on MPI hang.");
42 
43 int ql2xenforce_iocb_limit = 1;
44 module_param(ql2xenforce_iocb_limit, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql2xenforce_iocb_limit,
46 		 "Enforce IOCB throttling, to avoid FW congestion. (default: 1)");
47 
48 /*
49  * CT6 CTX allocation cache
50  */
51 static struct kmem_cache *ctx_cachep;
52 /*
53  * error level for logging
54  */
55 uint ql_errlev = 0x8001;
56 
57 int ql2xsecenable;
58 module_param(ql2xsecenable, int, S_IRUGO);
59 MODULE_PARM_DESC(ql2xsecenable,
60 	"Enable/disable security. 0(Default) - Security disabled. 1 - Security enabled.");
61 
62 static int ql2xenableclass2;
63 module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
64 MODULE_PARM_DESC(ql2xenableclass2,
65 		"Specify if Class 2 operations are supported from the very "
66 		"beginning. Default is 0 - class 2 not supported.");
67 
68 
69 int ql2xlogintimeout = 20;
70 module_param(ql2xlogintimeout, int, S_IRUGO);
71 MODULE_PARM_DESC(ql2xlogintimeout,
72 		"Login timeout value in seconds.");
73 
74 int qlport_down_retry;
75 module_param(qlport_down_retry, int, S_IRUGO);
76 MODULE_PARM_DESC(qlport_down_retry,
77 		"Maximum number of command retries to a port that returns "
78 		"a PORT-DOWN status.");
79 
80 int ql2xplogiabsentdevice;
81 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
82 MODULE_PARM_DESC(ql2xplogiabsentdevice,
83 		"Option to enable PLOGI to devices that are not present after "
84 		"a Fabric scan.  This is needed for several broken switches. "
85 		"Default is 0 - no PLOGI. 1 - perform PLOGI.");
86 
87 int ql2xloginretrycount;
88 module_param(ql2xloginretrycount, int, S_IRUGO);
89 MODULE_PARM_DESC(ql2xloginretrycount,
90 		"Specify an alternate value for the NVRAM login retry count.");
91 
92 int ql2xallocfwdump = 1;
93 module_param(ql2xallocfwdump, int, S_IRUGO);
94 MODULE_PARM_DESC(ql2xallocfwdump,
95 		"Option to enable allocation of memory for a firmware dump "
96 		"during HBA initialization.  Memory allocation requirements "
97 		"vary by ISP type.  Default is 1 - allocate memory.");
98 
99 int ql2xextended_error_logging;
100 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
101 module_param_named(logging, ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
102 MODULE_PARM_DESC(ql2xextended_error_logging,
103 		"Option to enable extended error logging,\n"
104 		"\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
105 		"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
106 		"\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
107 		"\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
108 		"\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
109 		"\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
110 		"\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
111 		"\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
112 		"\t\t0x00008000 - Verbose.       0x00004000 - Target.\n"
113 		"\t\t0x00002000 - Target Mgmt.   0x00001000 - Target TMF.\n"
114 		"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
115 		"\t\t0x1e400000 - Preferred value for capturing essential "
116 		"debug information (equivalent to old "
117 		"ql2xextended_error_logging=1).\n"
118 		"\t\tDo LOGICAL OR of the value to enable more than one level");
119 
120 int ql2xshiftctondsd = 6;
121 module_param(ql2xshiftctondsd, int, S_IRUGO);
122 MODULE_PARM_DESC(ql2xshiftctondsd,
123 		"Set to control shifting of command type processing "
124 		"based on total number of SG elements.");
125 
126 int ql2xfdmienable = 1;
127 module_param(ql2xfdmienable, int, S_IRUGO|S_IWUSR);
128 module_param_named(fdmi, ql2xfdmienable, int, S_IRUGO|S_IWUSR);
129 MODULE_PARM_DESC(ql2xfdmienable,
130 		"Enables FDMI registrations. "
131 		"0 - no FDMI registrations. "
132 		"1 - provide FDMI registrations (default).");
133 
134 #define MAX_Q_DEPTH	64
135 static int ql2xmaxqdepth = MAX_Q_DEPTH;
136 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
137 MODULE_PARM_DESC(ql2xmaxqdepth,
138 		"Maximum queue depth to set for each LUN. "
139 		"Default is 64.");
140 
141 int ql2xenabledif = 2;
142 module_param(ql2xenabledif, int, S_IRUGO);
143 MODULE_PARM_DESC(ql2xenabledif,
144 		" Enable T10-CRC-DIF:\n"
145 		" Default is 2.\n"
146 		"  0 -- No DIF Support\n"
147 		"  1 -- Enable DIF for all types\n"
148 		"  2 -- Enable DIF for all types, except Type 0.\n");
149 
150 #if (IS_ENABLED(CONFIG_NVME_FC))
151 int ql2xnvmeenable = 1;
152 #else
153 int ql2xnvmeenable;
154 #endif
155 module_param(ql2xnvmeenable, int, 0644);
156 MODULE_PARM_DESC(ql2xnvmeenable,
157     "Enables NVME support. "
158     "0 - no NVMe.  Default is Y");
159 
160 int ql2xenablehba_err_chk = 2;
161 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
162 MODULE_PARM_DESC(ql2xenablehba_err_chk,
163 		" Enable T10-CRC-DIF Error isolation by HBA:\n"
164 		" Default is 2.\n"
165 		"  0 -- Error isolation disabled\n"
166 		"  1 -- Error isolation enabled only for DIX Type 0\n"
167 		"  2 -- Error isolation enabled for all Types\n");
168 
169 int ql2xiidmaenable = 1;
170 module_param(ql2xiidmaenable, int, S_IRUGO);
171 MODULE_PARM_DESC(ql2xiidmaenable,
172 		"Enables iIDMA settings "
173 		"Default is 1 - perform iIDMA. 0 - no iIDMA.");
174 
175 int ql2xmqsupport = 1;
176 module_param(ql2xmqsupport, int, S_IRUGO);
177 MODULE_PARM_DESC(ql2xmqsupport,
178 		"Enable on demand multiple queue pairs support "
179 		"Default is 1 for supported. "
180 		"Set it to 0 to turn off mq qpair support.");
181 
182 int ql2xfwloadbin;
183 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
184 module_param_named(fwload, ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
185 MODULE_PARM_DESC(ql2xfwloadbin,
186 		"Option to specify location from which to load ISP firmware:.\n"
187 		" 2 -- load firmware via the request_firmware() (hotplug).\n"
188 		"      interface.\n"
189 		" 1 -- load firmware from flash.\n"
190 		" 0 -- use default semantics.\n");
191 
192 int ql2xetsenable;
193 module_param(ql2xetsenable, int, S_IRUGO);
194 MODULE_PARM_DESC(ql2xetsenable,
195 		"Enables firmware ETS burst."
196 		"Default is 0 - skip ETS enablement.");
197 
198 int ql2xdbwr = 1;
199 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
200 MODULE_PARM_DESC(ql2xdbwr,
201 		"Option to specify scheme for request queue posting.\n"
202 		" 0 -- Regular doorbell.\n"
203 		" 1 -- CAMRAM doorbell (faster).\n");
204 
205 int ql2xtargetreset = 1;
206 module_param(ql2xtargetreset, int, S_IRUGO);
207 MODULE_PARM_DESC(ql2xtargetreset,
208 		 "Enable target reset."
209 		 "Default is 1 - use hw defaults.");
210 
211 int ql2xgffidenable;
212 module_param(ql2xgffidenable, int, S_IRUGO);
213 MODULE_PARM_DESC(ql2xgffidenable,
214 		"Enables GFF_ID checks of port type. "
215 		"Default is 0 - Do not use GFF_ID information.");
216 
217 int ql2xasynctmfenable = 1;
218 module_param(ql2xasynctmfenable, int, S_IRUGO);
219 MODULE_PARM_DESC(ql2xasynctmfenable,
220 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
221 		"Default is 1 - Issue TM IOCBs via mailbox mechanism.");
222 
223 int ql2xdontresethba;
224 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
225 MODULE_PARM_DESC(ql2xdontresethba,
226 		"Option to specify reset behaviour.\n"
227 		" 0 (Default) -- Reset on failure.\n"
228 		" 1 -- Do not reset on failure.\n");
229 
230 uint64_t ql2xmaxlun = MAX_LUNS;
231 module_param(ql2xmaxlun, ullong, S_IRUGO);
232 MODULE_PARM_DESC(ql2xmaxlun,
233 		"Defines the maximum LU number to register with the SCSI "
234 		"midlayer. Default is 65535.");
235 
236 int ql2xmdcapmask = 0x1F;
237 module_param(ql2xmdcapmask, int, S_IRUGO);
238 MODULE_PARM_DESC(ql2xmdcapmask,
239 		"Set the Minidump driver capture mask level. "
240 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
241 
242 int ql2xmdenable = 1;
243 module_param(ql2xmdenable, int, S_IRUGO);
244 MODULE_PARM_DESC(ql2xmdenable,
245 		"Enable/disable MiniDump. "
246 		"0 - MiniDump disabled. "
247 		"1 (Default) - MiniDump enabled.");
248 
249 int ql2xexlogins;
250 module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
251 MODULE_PARM_DESC(ql2xexlogins,
252 		 "Number of extended Logins. "
253 		 "0 (Default)- Disabled.");
254 
255 int ql2xexchoffld = 1024;
256 module_param(ql2xexchoffld, uint, 0644);
257 MODULE_PARM_DESC(ql2xexchoffld,
258 	"Number of target exchanges.");
259 
260 int ql2xiniexchg = 1024;
261 module_param(ql2xiniexchg, uint, 0644);
262 MODULE_PARM_DESC(ql2xiniexchg,
263 	"Number of initiator exchanges.");
264 
265 int ql2xfwholdabts;
266 module_param(ql2xfwholdabts, int, S_IRUGO);
267 MODULE_PARM_DESC(ql2xfwholdabts,
268 		"Allow FW to hold status IOCB until ABTS rsp received. "
269 		"0 (Default) Do not set fw option. "
270 		"1 - Set fw option to hold ABTS.");
271 
272 int ql2xmvasynctoatio = 1;
273 module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
274 MODULE_PARM_DESC(ql2xmvasynctoatio,
275 		"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
276 		"0 (Default). Do not move IOCBs"
277 		"1 - Move IOCBs.");
278 
279 int ql2xautodetectsfp = 1;
280 module_param(ql2xautodetectsfp, int, 0444);
281 MODULE_PARM_DESC(ql2xautodetectsfp,
282 		 "Detect SFP range and set appropriate distance.\n"
283 		 "1 (Default): Enable\n");
284 
285 int ql2xenablemsix = 1;
286 module_param(ql2xenablemsix, int, 0444);
287 MODULE_PARM_DESC(ql2xenablemsix,
288 		 "Set to enable MSI or MSI-X interrupt mechanism.\n"
289 		 " Default is 1, enable MSI-X interrupt mechanism.\n"
290 		 " 0 -- enable traditional pin-based mechanism.\n"
291 		 " 1 -- enable MSI-X interrupt mechanism.\n"
292 		 " 2 -- enable MSI interrupt mechanism.\n");
293 
294 int qla2xuseresexchforels;
295 module_param(qla2xuseresexchforels, int, 0444);
296 MODULE_PARM_DESC(qla2xuseresexchforels,
297 		 "Reserve 1/2 of emergency exchanges for ELS.\n"
298 		 " 0 (default): disabled");
299 
300 static int ql2xprotmask;
301 module_param(ql2xprotmask, int, 0644);
302 MODULE_PARM_DESC(ql2xprotmask,
303 		 "Override DIF/DIX protection capabilities mask\n"
304 		 "Default is 0 which sets protection mask based on "
305 		 "capabilities reported by HBA firmware.\n");
306 
307 static int ql2xprotguard;
308 module_param(ql2xprotguard, int, 0644);
309 MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
310 		 "  0 -- Let HBA firmware decide\n"
311 		 "  1 -- Force T10 CRC\n"
312 		 "  2 -- Force IP checksum\n");
313 
314 int ql2xdifbundlinginternalbuffers;
315 module_param(ql2xdifbundlinginternalbuffers, int, 0644);
316 MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
317     "Force using internal buffers for DIF information\n"
318     "0 (Default). Based on check.\n"
319     "1 Force using internal buffers\n");
320 
321 int ql2xsmartsan;
322 module_param(ql2xsmartsan, int, 0444);
323 module_param_named(smartsan, ql2xsmartsan, int, 0444);
324 MODULE_PARM_DESC(ql2xsmartsan,
325 		"Send SmartSAN Management Attributes for FDMI Registration."
326 		" Default is 0 - No SmartSAN registration,"
327 		" 1 - Register SmartSAN Management Attributes.");
328 
329 int ql2xrdpenable;
330 module_param(ql2xrdpenable, int, 0444);
331 module_param_named(rdpenable, ql2xrdpenable, int, 0444);
332 MODULE_PARM_DESC(ql2xrdpenable,
333 		"Enables RDP responses. "
334 		"0 - no RDP responses (default). "
335 		"1 - provide RDP responses.");
336 int ql2xabts_wait_nvme = 1;
337 module_param(ql2xabts_wait_nvme, int, 0444);
338 MODULE_PARM_DESC(ql2xabts_wait_nvme,
339 		 "To wait for ABTS response on I/O timeouts for NVMe. (default: 1)");
340 
341 
342 static void qla2x00_clear_drv_active(struct qla_hw_data *);
343 static void qla2x00_free_device(scsi_qla_host_t *);
344 static int qla2xxx_map_queues(struct Scsi_Host *shost);
345 static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
346 
347 
348 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
349 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
350 
351 /* TODO Convert to inlines
352  *
353  * Timer routines
354  */
355 
356 __inline__ void
357 qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
358 {
359 	timer_setup(&vha->timer, qla2x00_timer, 0);
360 	vha->timer.expires = jiffies + interval * HZ;
361 	add_timer(&vha->timer);
362 	vha->timer_active = 1;
363 }
364 
365 static inline void
366 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
367 {
368 	/* Currently used for 82XX only. */
369 	if (vha->device_flags & DFLG_DEV_FAILED) {
370 		ql_dbg(ql_dbg_timer, vha, 0x600d,
371 		    "Device in a failed state, returning.\n");
372 		return;
373 	}
374 
375 	mod_timer(&vha->timer, jiffies + interval * HZ);
376 }
377 
378 static __inline__ void
379 qla2x00_stop_timer(scsi_qla_host_t *vha)
380 {
381 	del_timer_sync(&vha->timer);
382 	vha->timer_active = 0;
383 }
384 
385 static int qla2x00_do_dpc(void *data);
386 
387 static void qla2x00_rst_aen(scsi_qla_host_t *);
388 
389 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
390 	struct req_que **, struct rsp_que **);
391 static void qla2x00_free_fw_dump(struct qla_hw_data *);
392 static void qla2x00_mem_free(struct qla_hw_data *);
393 int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
394 	struct qla_qpair *qpair);
395 
396 /* -------------------------------------------------------------------------- */
397 static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
398     struct rsp_que *rsp)
399 {
400 	struct qla_hw_data *ha = vha->hw;
401 
402 	rsp->qpair = ha->base_qpair;
403 	rsp->req = req;
404 	ha->base_qpair->hw = ha;
405 	ha->base_qpair->req = req;
406 	ha->base_qpair->rsp = rsp;
407 	ha->base_qpair->vha = vha;
408 	ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
409 	ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
410 	ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
411 	ha->base_qpair->srb_mempool = ha->srb_mempool;
412 	INIT_LIST_HEAD(&ha->base_qpair->hints_list);
413 	ha->base_qpair->enable_class_2 = ql2xenableclass2;
414 	/* init qpair to this cpu. Will adjust at run time. */
415 	qla_cpu_update(rsp->qpair, raw_smp_processor_id());
416 	ha->base_qpair->pdev = ha->pdev;
417 
418 	if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
419 		ha->base_qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
420 }
421 
422 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
423 				struct rsp_que *rsp)
424 {
425 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
426 
427 	ha->req_q_map = kcalloc(ha->max_req_queues, sizeof(struct req_que *),
428 				GFP_KERNEL);
429 	if (!ha->req_q_map) {
430 		ql_log(ql_log_fatal, vha, 0x003b,
431 		    "Unable to allocate memory for request queue ptrs.\n");
432 		goto fail_req_map;
433 	}
434 
435 	ha->rsp_q_map = kcalloc(ha->max_rsp_queues, sizeof(struct rsp_que *),
436 				GFP_KERNEL);
437 	if (!ha->rsp_q_map) {
438 		ql_log(ql_log_fatal, vha, 0x003c,
439 		    "Unable to allocate memory for response queue ptrs.\n");
440 		goto fail_rsp_map;
441 	}
442 
443 	ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
444 	if (ha->base_qpair == NULL) {
445 		ql_log(ql_log_warn, vha, 0x00e0,
446 		    "Failed to allocate base queue pair memory.\n");
447 		goto fail_base_qpair;
448 	}
449 
450 	qla_init_base_qpair(vha, req, rsp);
451 
452 	if ((ql2xmqsupport || ql2xnvmeenable) && ha->max_qpairs) {
453 		ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
454 			GFP_KERNEL);
455 		if (!ha->queue_pair_map) {
456 			ql_log(ql_log_fatal, vha, 0x0180,
457 			    "Unable to allocate memory for queue pair ptrs.\n");
458 			goto fail_qpair_map;
459 		}
460 	}
461 
462 	/*
463 	 * Make sure we record at least the request and response queue zero in
464 	 * case we need to free them if part of the probe fails.
465 	 */
466 	ha->rsp_q_map[0] = rsp;
467 	ha->req_q_map[0] = req;
468 	set_bit(0, ha->rsp_qid_map);
469 	set_bit(0, ha->req_qid_map);
470 	return 0;
471 
472 fail_qpair_map:
473 	kfree(ha->base_qpair);
474 	ha->base_qpair = NULL;
475 fail_base_qpair:
476 	kfree(ha->rsp_q_map);
477 	ha->rsp_q_map = NULL;
478 fail_rsp_map:
479 	kfree(ha->req_q_map);
480 	ha->req_q_map = NULL;
481 fail_req_map:
482 	return -ENOMEM;
483 }
484 
485 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
486 {
487 	if (IS_QLAFX00(ha)) {
488 		if (req && req->ring_fx00)
489 			dma_free_coherent(&ha->pdev->dev,
490 			    (req->length_fx00 + 1) * sizeof(request_t),
491 			    req->ring_fx00, req->dma_fx00);
492 	} else if (req && req->ring)
493 		dma_free_coherent(&ha->pdev->dev,
494 		(req->length + 1) * sizeof(request_t),
495 		req->ring, req->dma);
496 
497 	if (req)
498 		kfree(req->outstanding_cmds);
499 
500 	kfree(req);
501 }
502 
503 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
504 {
505 	if (IS_QLAFX00(ha)) {
506 		if (rsp && rsp->ring_fx00)
507 			dma_free_coherent(&ha->pdev->dev,
508 			    (rsp->length_fx00 + 1) * sizeof(request_t),
509 			    rsp->ring_fx00, rsp->dma_fx00);
510 	} else if (rsp && rsp->ring) {
511 		dma_free_coherent(&ha->pdev->dev,
512 		(rsp->length + 1) * sizeof(response_t),
513 		rsp->ring, rsp->dma);
514 	}
515 	kfree(rsp);
516 }
517 
518 static void qla2x00_free_queues(struct qla_hw_data *ha)
519 {
520 	struct req_que *req;
521 	struct rsp_que *rsp;
522 	int cnt;
523 	unsigned long flags;
524 
525 	if (ha->queue_pair_map) {
526 		kfree(ha->queue_pair_map);
527 		ha->queue_pair_map = NULL;
528 	}
529 	if (ha->base_qpair) {
530 		kfree(ha->base_qpair);
531 		ha->base_qpair = NULL;
532 	}
533 
534 	spin_lock_irqsave(&ha->hardware_lock, flags);
535 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
536 		if (!test_bit(cnt, ha->req_qid_map))
537 			continue;
538 
539 		req = ha->req_q_map[cnt];
540 		clear_bit(cnt, ha->req_qid_map);
541 		ha->req_q_map[cnt] = NULL;
542 
543 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
544 		qla2x00_free_req_que(ha, req);
545 		spin_lock_irqsave(&ha->hardware_lock, flags);
546 	}
547 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
548 
549 	kfree(ha->req_q_map);
550 	ha->req_q_map = NULL;
551 
552 
553 	spin_lock_irqsave(&ha->hardware_lock, flags);
554 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
555 		if (!test_bit(cnt, ha->rsp_qid_map))
556 			continue;
557 
558 		rsp = ha->rsp_q_map[cnt];
559 		clear_bit(cnt, ha->rsp_qid_map);
560 		ha->rsp_q_map[cnt] =  NULL;
561 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
562 		qla2x00_free_rsp_que(ha, rsp);
563 		spin_lock_irqsave(&ha->hardware_lock, flags);
564 	}
565 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
566 
567 	kfree(ha->rsp_q_map);
568 	ha->rsp_q_map = NULL;
569 }
570 
571 static char *
572 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
573 {
574 	struct qla_hw_data *ha = vha->hw;
575 	static const char *const pci_bus_modes[] = {
576 		"33", "66", "100", "133",
577 	};
578 	uint16_t pci_bus;
579 
580 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
581 	if (pci_bus) {
582 		snprintf(str, str_len, "PCI-X (%s MHz)",
583 			 pci_bus_modes[pci_bus]);
584 	} else {
585 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
586 		snprintf(str, str_len, "PCI (%s MHz)", pci_bus_modes[pci_bus]);
587 	}
588 
589 	return str;
590 }
591 
592 static char *
593 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
594 {
595 	static const char *const pci_bus_modes[] = {
596 		"33", "66", "100", "133",
597 	};
598 	struct qla_hw_data *ha = vha->hw;
599 	uint32_t pci_bus;
600 
601 	if (pci_is_pcie(ha->pdev)) {
602 		uint32_t lstat, lspeed, lwidth;
603 		const char *speed_str;
604 
605 		pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
606 		lspeed = lstat & PCI_EXP_LNKCAP_SLS;
607 		lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
608 
609 		switch (lspeed) {
610 		case 1:
611 			speed_str = "2.5GT/s";
612 			break;
613 		case 2:
614 			speed_str = "5.0GT/s";
615 			break;
616 		case 3:
617 			speed_str = "8.0GT/s";
618 			break;
619 		case 4:
620 			speed_str = "16.0GT/s";
621 			break;
622 		default:
623 			speed_str = "<unknown>";
624 			break;
625 		}
626 		snprintf(str, str_len, "PCIe (%s x%d)", speed_str, lwidth);
627 
628 		return str;
629 	}
630 
631 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
632 	if (pci_bus == 0 || pci_bus == 8)
633 		snprintf(str, str_len, "PCI (%s MHz)",
634 			 pci_bus_modes[pci_bus >> 3]);
635 	else
636 		snprintf(str, str_len, "PCI-X Mode %d (%s MHz)",
637 			 pci_bus & 4 ? 2 : 1,
638 			 pci_bus_modes[pci_bus & 3]);
639 
640 	return str;
641 }
642 
643 static char *
644 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
645 {
646 	char un_str[10];
647 	struct qla_hw_data *ha = vha->hw;
648 
649 	snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
650 	    ha->fw_minor_version, ha->fw_subminor_version);
651 
652 	if (ha->fw_attributes & BIT_9) {
653 		strcat(str, "FLX");
654 		return (str);
655 	}
656 
657 	switch (ha->fw_attributes & 0xFF) {
658 	case 0x7:
659 		strcat(str, "EF");
660 		break;
661 	case 0x17:
662 		strcat(str, "TP");
663 		break;
664 	case 0x37:
665 		strcat(str, "IP");
666 		break;
667 	case 0x77:
668 		strcat(str, "VI");
669 		break;
670 	default:
671 		sprintf(un_str, "(%x)", ha->fw_attributes);
672 		strcat(str, un_str);
673 		break;
674 	}
675 	if (ha->fw_attributes & 0x100)
676 		strcat(str, "X");
677 
678 	return (str);
679 }
680 
681 static char *
682 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
683 {
684 	struct qla_hw_data *ha = vha->hw;
685 
686 	snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
687 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
688 	return str;
689 }
690 
691 void qla2x00_sp_free_dma(srb_t *sp)
692 {
693 	struct qla_hw_data *ha = sp->vha->hw;
694 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
695 
696 	if (sp->flags & SRB_DMA_VALID) {
697 		scsi_dma_unmap(cmd);
698 		sp->flags &= ~SRB_DMA_VALID;
699 	}
700 
701 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
702 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
703 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
704 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
705 	}
706 
707 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
708 		/* List assured to be having elements */
709 		qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
710 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
711 	}
712 
713 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
714 		struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
715 
716 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
717 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
718 	}
719 
720 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
721 		struct ct6_dsd *ctx1 = sp->u.scmd.ct6_ctx;
722 
723 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
724 		    ctx1->fcp_cmnd_dma);
725 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
726 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
727 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
728 		mempool_free(ctx1, ha->ctx_mempool);
729 	}
730 }
731 
732 void qla2x00_sp_compl(srb_t *sp, int res)
733 {
734 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
735 	struct completion *comp = sp->comp;
736 
737 	sp->free(sp);
738 	cmd->result = res;
739 	CMD_SP(cmd) = NULL;
740 	cmd->scsi_done(cmd);
741 	if (comp)
742 		complete(comp);
743 }
744 
745 void qla2xxx_qpair_sp_free_dma(srb_t *sp)
746 {
747 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
748 	struct qla_hw_data *ha = sp->fcport->vha->hw;
749 
750 	if (sp->flags & SRB_DMA_VALID) {
751 		scsi_dma_unmap(cmd);
752 		sp->flags &= ~SRB_DMA_VALID;
753 	}
754 
755 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
756 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
757 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
758 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
759 	}
760 
761 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
762 		/* List assured to be having elements */
763 		qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
764 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
765 	}
766 
767 	if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
768 		struct crc_context *difctx = sp->u.scmd.crc_ctx;
769 		struct dsd_dma *dif_dsd, *nxt_dsd;
770 
771 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
772 		    &difctx->ldif_dma_hndl_list, list) {
773 			list_del(&dif_dsd->list);
774 			dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
775 			    dif_dsd->dsd_list_dma);
776 			kfree(dif_dsd);
777 			difctx->no_dif_bundl--;
778 		}
779 
780 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
781 		    &difctx->ldif_dsd_list, list) {
782 			list_del(&dif_dsd->list);
783 			dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
784 			    dif_dsd->dsd_list_dma);
785 			kfree(dif_dsd);
786 			difctx->no_ldif_dsd--;
787 		}
788 
789 		if (difctx->no_ldif_dsd) {
790 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
791 			    "%s: difctx->no_ldif_dsd=%x\n",
792 			    __func__, difctx->no_ldif_dsd);
793 		}
794 
795 		if (difctx->no_dif_bundl) {
796 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
797 			    "%s: difctx->no_dif_bundl=%x\n",
798 			    __func__, difctx->no_dif_bundl);
799 		}
800 		sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
801 	}
802 
803 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
804 		struct ct6_dsd *ctx1 = sp->u.scmd.ct6_ctx;
805 
806 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
807 		    ctx1->fcp_cmnd_dma);
808 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
809 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
810 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
811 		mempool_free(ctx1, ha->ctx_mempool);
812 		sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
813 	}
814 
815 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
816 		struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
817 
818 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
819 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
820 	}
821 }
822 
823 void qla2xxx_qpair_sp_compl(srb_t *sp, int res)
824 {
825 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
826 	struct completion *comp = sp->comp;
827 
828 	sp->free(sp);
829 	cmd->result = res;
830 	CMD_SP(cmd) = NULL;
831 	cmd->scsi_done(cmd);
832 	if (comp)
833 		complete(comp);
834 }
835 
836 static int
837 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
838 {
839 	scsi_qla_host_t *vha = shost_priv(host);
840 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
841 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
842 	struct qla_hw_data *ha = vha->hw;
843 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
844 	srb_t *sp;
845 	int rval;
846 
847 	if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags)) ||
848 	    WARN_ON_ONCE(!rport)) {
849 		cmd->result = DID_NO_CONNECT << 16;
850 		goto qc24_fail_command;
851 	}
852 
853 	if (ha->mqenable) {
854 		uint32_t tag;
855 		uint16_t hwq;
856 		struct qla_qpair *qpair = NULL;
857 
858 		tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmd));
859 		hwq = blk_mq_unique_tag_to_hwq(tag);
860 		qpair = ha->queue_pair_map[hwq];
861 
862 		if (qpair)
863 			return qla2xxx_mqueuecommand(host, cmd, qpair);
864 	}
865 
866 	if (ha->flags.eeh_busy) {
867 		if (ha->flags.pci_channel_io_perm_failure) {
868 			ql_dbg(ql_dbg_aer, vha, 0x9010,
869 			    "PCI Channel IO permanent failure, exiting "
870 			    "cmd=%p.\n", cmd);
871 			cmd->result = DID_NO_CONNECT << 16;
872 		} else {
873 			ql_dbg(ql_dbg_aer, vha, 0x9011,
874 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
875 			cmd->result = DID_REQUEUE << 16;
876 		}
877 		goto qc24_fail_command;
878 	}
879 
880 	rval = fc_remote_port_chkready(rport);
881 	if (rval) {
882 		cmd->result = rval;
883 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
884 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
885 		    cmd, rval);
886 		goto qc24_fail_command;
887 	}
888 
889 	if (!vha->flags.difdix_supported &&
890 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
891 			ql_dbg(ql_dbg_io, vha, 0x3004,
892 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
893 			    cmd);
894 			cmd->result = DID_NO_CONNECT << 16;
895 			goto qc24_fail_command;
896 	}
897 
898 	if (!fcport || fcport->deleted) {
899 		cmd->result = DID_IMM_RETRY << 16;
900 		goto qc24_fail_command;
901 	}
902 
903 	if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
904 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
905 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
906 			ql_dbg(ql_dbg_io, vha, 0x3005,
907 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
908 			    atomic_read(&fcport->state),
909 			    atomic_read(&base_vha->loop_state));
910 			cmd->result = DID_NO_CONNECT << 16;
911 			goto qc24_fail_command;
912 		}
913 		goto qc24_target_busy;
914 	}
915 
916 	/*
917 	 * Return target busy if we've received a non-zero retry_delay_timer
918 	 * in a FCP_RSP.
919 	 */
920 	if (fcport->retry_delay_timestamp == 0) {
921 		/* retry delay not set */
922 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
923 		fcport->retry_delay_timestamp = 0;
924 	else
925 		goto qc24_target_busy;
926 
927 	sp = scsi_cmd_priv(cmd);
928 	qla2xxx_init_sp(sp, vha, vha->hw->base_qpair, fcport);
929 
930 	sp->u.scmd.cmd = cmd;
931 	sp->type = SRB_SCSI_CMD;
932 
933 	CMD_SP(cmd) = (void *)sp;
934 	sp->free = qla2x00_sp_free_dma;
935 	sp->done = qla2x00_sp_compl;
936 
937 	rval = ha->isp_ops->start_scsi(sp);
938 	if (rval != QLA_SUCCESS) {
939 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
940 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
941 		goto qc24_host_busy_free_sp;
942 	}
943 
944 	return 0;
945 
946 qc24_host_busy_free_sp:
947 	sp->free(sp);
948 
949 qc24_target_busy:
950 	return SCSI_MLQUEUE_TARGET_BUSY;
951 
952 qc24_fail_command:
953 	cmd->scsi_done(cmd);
954 
955 	return 0;
956 }
957 
958 /* For MQ supported I/O */
959 int
960 qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
961     struct qla_qpair *qpair)
962 {
963 	scsi_qla_host_t *vha = shost_priv(host);
964 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
965 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
966 	struct qla_hw_data *ha = vha->hw;
967 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
968 	srb_t *sp;
969 	int rval;
970 
971 	rval = rport ? fc_remote_port_chkready(rport) : (DID_NO_CONNECT << 16);
972 	if (rval) {
973 		cmd->result = rval;
974 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
975 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
976 		    cmd, rval);
977 		goto qc24_fail_command;
978 	}
979 
980 	if (!qpair->online) {
981 		ql_dbg(ql_dbg_io, vha, 0x3077,
982 		       "qpair not online. eeh_busy=%d.\n", ha->flags.eeh_busy);
983 		cmd->result = DID_NO_CONNECT << 16;
984 		goto qc24_fail_command;
985 	}
986 
987 	if (!fcport || fcport->deleted) {
988 		cmd->result = DID_IMM_RETRY << 16;
989 		goto qc24_fail_command;
990 	}
991 
992 	if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
993 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
994 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
995 			ql_dbg(ql_dbg_io, vha, 0x3077,
996 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
997 			    atomic_read(&fcport->state),
998 			    atomic_read(&base_vha->loop_state));
999 			cmd->result = DID_NO_CONNECT << 16;
1000 			goto qc24_fail_command;
1001 		}
1002 		goto qc24_target_busy;
1003 	}
1004 
1005 	/*
1006 	 * Return target busy if we've received a non-zero retry_delay_timer
1007 	 * in a FCP_RSP.
1008 	 */
1009 	if (fcport->retry_delay_timestamp == 0) {
1010 		/* retry delay not set */
1011 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
1012 		fcport->retry_delay_timestamp = 0;
1013 	else
1014 		goto qc24_target_busy;
1015 
1016 	sp = scsi_cmd_priv(cmd);
1017 	qla2xxx_init_sp(sp, vha, qpair, fcport);
1018 
1019 	sp->u.scmd.cmd = cmd;
1020 	sp->type = SRB_SCSI_CMD;
1021 	CMD_SP(cmd) = (void *)sp;
1022 	sp->free = qla2xxx_qpair_sp_free_dma;
1023 	sp->done = qla2xxx_qpair_sp_compl;
1024 
1025 	rval = ha->isp_ops->start_scsi_mq(sp);
1026 	if (rval != QLA_SUCCESS) {
1027 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
1028 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
1029 		goto qc24_host_busy_free_sp;
1030 	}
1031 
1032 	return 0;
1033 
1034 qc24_host_busy_free_sp:
1035 	sp->free(sp);
1036 
1037 qc24_target_busy:
1038 	return SCSI_MLQUEUE_TARGET_BUSY;
1039 
1040 qc24_fail_command:
1041 	cmd->scsi_done(cmd);
1042 
1043 	return 0;
1044 }
1045 
1046 /*
1047  * qla2x00_eh_wait_on_command
1048  *    Waits for the command to be returned by the Firmware for some
1049  *    max time.
1050  *
1051  * Input:
1052  *    cmd = Scsi Command to wait on.
1053  *
1054  * Return:
1055  *    Completed in time : QLA_SUCCESS
1056  *    Did not complete in time : QLA_FUNCTION_FAILED
1057  */
1058 static int
1059 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
1060 {
1061 #define ABORT_POLLING_PERIOD	1000
1062 #define ABORT_WAIT_ITER		((2 * 1000) / (ABORT_POLLING_PERIOD))
1063 	unsigned long wait_iter = ABORT_WAIT_ITER;
1064 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1065 	struct qla_hw_data *ha = vha->hw;
1066 	int ret = QLA_SUCCESS;
1067 
1068 	if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
1069 		ql_dbg(ql_dbg_taskm, vha, 0x8005,
1070 		    "Return:eh_wait.\n");
1071 		return ret;
1072 	}
1073 
1074 	while (CMD_SP(cmd) && wait_iter--) {
1075 		msleep(ABORT_POLLING_PERIOD);
1076 	}
1077 	if (CMD_SP(cmd))
1078 		ret = QLA_FUNCTION_FAILED;
1079 
1080 	return ret;
1081 }
1082 
1083 /*
1084  * qla2x00_wait_for_hba_online
1085  *    Wait till the HBA is online after going through
1086  *    <= MAX_RETRIES_OF_ISP_ABORT  or
1087  *    finally HBA is disabled ie marked offline
1088  *
1089  * Input:
1090  *     ha - pointer to host adapter structure
1091  *
1092  * Note:
1093  *    Does context switching-Release SPIN_LOCK
1094  *    (if any) before calling this routine.
1095  *
1096  * Return:
1097  *    Success (Adapter is online) : 0
1098  *    Failed  (Adapter is offline/disabled) : 1
1099  */
1100 int
1101 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
1102 {
1103 	int		return_status;
1104 	unsigned long	wait_online;
1105 	struct qla_hw_data *ha = vha->hw;
1106 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1107 
1108 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1109 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1110 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1111 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1112 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
1113 
1114 		msleep(1000);
1115 	}
1116 	if (base_vha->flags.online)
1117 		return_status = QLA_SUCCESS;
1118 	else
1119 		return_status = QLA_FUNCTION_FAILED;
1120 
1121 	return (return_status);
1122 }
1123 
1124 static inline int test_fcport_count(scsi_qla_host_t *vha)
1125 {
1126 	struct qla_hw_data *ha = vha->hw;
1127 	unsigned long flags;
1128 	int res;
1129 	/* Return 0 = sleep, x=wake */
1130 
1131 	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1132 	ql_dbg(ql_dbg_init, vha, 0x00ec,
1133 	    "tgt %p, fcport_count=%d\n",
1134 	    vha, vha->fcport_count);
1135 	res = (vha->fcport_count == 0);
1136 	if  (res) {
1137 		struct fc_port *fcport;
1138 
1139 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1140 			if (fcport->deleted != QLA_SESS_DELETED) {
1141 				/* session(s) may not be fully logged in
1142 				 * (ie fcport_count=0), but session
1143 				 * deletion thread(s) may be inflight.
1144 				 */
1145 
1146 				res = 0;
1147 				break;
1148 			}
1149 		}
1150 	}
1151 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1152 
1153 	return res;
1154 }
1155 
1156 /*
1157  * qla2x00_wait_for_sess_deletion can only be called from remove_one.
1158  * it has dependency on UNLOADING flag to stop device discovery
1159  */
1160 void
1161 qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
1162 {
1163 	u8 i;
1164 
1165 	qla2x00_mark_all_devices_lost(vha);
1166 
1167 	for (i = 0; i < 10; i++) {
1168 		if (wait_event_timeout(vha->fcport_waitQ,
1169 		    test_fcport_count(vha), HZ) > 0)
1170 			break;
1171 	}
1172 
1173 	flush_workqueue(vha->hw->wq);
1174 }
1175 
1176 /*
1177  * qla2x00_wait_for_hba_ready
1178  * Wait till the HBA is ready before doing driver unload
1179  *
1180  * Input:
1181  *     ha - pointer to host adapter structure
1182  *
1183  * Note:
1184  *    Does context switching-Release SPIN_LOCK
1185  *    (if any) before calling this routine.
1186  *
1187  */
1188 static void
1189 qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
1190 {
1191 	struct qla_hw_data *ha = vha->hw;
1192 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1193 
1194 	while ((qla2x00_reset_active(vha) || ha->dpc_active ||
1195 		ha->flags.mbox_busy) ||
1196 	       test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
1197 	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
1198 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
1199 			break;
1200 		msleep(1000);
1201 	}
1202 }
1203 
1204 int
1205 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
1206 {
1207 	int		return_status;
1208 	unsigned long	wait_reset;
1209 	struct qla_hw_data *ha = vha->hw;
1210 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1211 
1212 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1213 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1214 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1215 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1216 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
1217 
1218 		msleep(1000);
1219 
1220 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
1221 		    ha->flags.chip_reset_done)
1222 			break;
1223 	}
1224 	if (ha->flags.chip_reset_done)
1225 		return_status = QLA_SUCCESS;
1226 	else
1227 		return_status = QLA_FUNCTION_FAILED;
1228 
1229 	return return_status;
1230 }
1231 
1232 /**************************************************************************
1233 * qla2xxx_eh_abort
1234 *
1235 * Description:
1236 *    The abort function will abort the specified command.
1237 *
1238 * Input:
1239 *    cmd = Linux SCSI command packet to be aborted.
1240 *
1241 * Returns:
1242 *    Either SUCCESS or FAILED.
1243 *
1244 * Note:
1245 *    Only return FAILED if command not returned by firmware.
1246 **************************************************************************/
1247 static int
1248 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
1249 {
1250 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1251 	DECLARE_COMPLETION_ONSTACK(comp);
1252 	srb_t *sp;
1253 	int ret;
1254 	unsigned int id;
1255 	uint64_t lun;
1256 	int rval;
1257 	struct qla_hw_data *ha = vha->hw;
1258 	uint32_t ratov_j;
1259 	struct qla_qpair *qpair;
1260 	unsigned long flags;
1261 
1262 	if (qla2x00_isp_reg_stat(ha)) {
1263 		ql_log(ql_log_info, vha, 0x8042,
1264 		    "PCI/Register disconnect, exiting.\n");
1265 		qla_pci_set_eeh_busy(vha);
1266 		return FAILED;
1267 	}
1268 
1269 	ret = fc_block_scsi_eh(cmd);
1270 	if (ret != 0)
1271 		return ret;
1272 
1273 	sp = scsi_cmd_priv(cmd);
1274 	qpair = sp->qpair;
1275 
1276 	vha->cmd_timeout_cnt++;
1277 
1278 	if ((sp->fcport && sp->fcport->deleted) || !qpair)
1279 		return SUCCESS;
1280 
1281 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1282 	sp->comp = &comp;
1283 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1284 
1285 
1286 	id = cmd->device->id;
1287 	lun = cmd->device->lun;
1288 
1289 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
1290 	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
1291 	    vha->host_no, id, lun, sp, cmd, sp->handle);
1292 
1293 	/*
1294 	 * Abort will release the original Command/sp from FW. Let the
1295 	 * original command call scsi_done. In return, he will wakeup
1296 	 * this sleeping thread.
1297 	 */
1298 	rval = ha->isp_ops->abort_command(sp);
1299 
1300 	ql_dbg(ql_dbg_taskm, vha, 0x8003,
1301 	       "Abort command mbx cmd=%p, rval=%x.\n", cmd, rval);
1302 
1303 	/* Wait for the command completion. */
1304 	ratov_j = ha->r_a_tov/10 * 4 * 1000;
1305 	ratov_j = msecs_to_jiffies(ratov_j);
1306 	switch (rval) {
1307 	case QLA_SUCCESS:
1308 		if (!wait_for_completion_timeout(&comp, ratov_j)) {
1309 			ql_dbg(ql_dbg_taskm, vha, 0xffff,
1310 			    "%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
1311 			    __func__, ha->r_a_tov/10);
1312 			ret = FAILED;
1313 		} else {
1314 			ret = SUCCESS;
1315 		}
1316 		break;
1317 	default:
1318 		ret = FAILED;
1319 		break;
1320 	}
1321 
1322 	sp->comp = NULL;
1323 
1324 	ql_log(ql_log_info, vha, 0x801c,
1325 	    "Abort command issued nexus=%ld:%d:%llu -- %x.\n",
1326 	    vha->host_no, id, lun, ret);
1327 
1328 	return ret;
1329 }
1330 
1331 /*
1332  * Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED.
1333  */
1334 int
1335 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1336 	uint64_t l, enum nexus_wait_type type)
1337 {
1338 	int cnt, match, status;
1339 	unsigned long flags;
1340 	struct qla_hw_data *ha = vha->hw;
1341 	struct req_que *req;
1342 	srb_t *sp;
1343 	struct scsi_cmnd *cmd;
1344 
1345 	status = QLA_SUCCESS;
1346 
1347 	spin_lock_irqsave(&ha->hardware_lock, flags);
1348 	req = vha->req;
1349 	for (cnt = 1; status == QLA_SUCCESS &&
1350 		cnt < req->num_outstanding_cmds; cnt++) {
1351 		sp = req->outstanding_cmds[cnt];
1352 		if (!sp)
1353 			continue;
1354 		if (sp->type != SRB_SCSI_CMD)
1355 			continue;
1356 		if (vha->vp_idx != sp->vha->vp_idx)
1357 			continue;
1358 		match = 0;
1359 		cmd = GET_CMD_SP(sp);
1360 		switch (type) {
1361 		case WAIT_HOST:
1362 			match = 1;
1363 			break;
1364 		case WAIT_TARGET:
1365 			match = cmd->device->id == t;
1366 			break;
1367 		case WAIT_LUN:
1368 			match = (cmd->device->id == t &&
1369 				cmd->device->lun == l);
1370 			break;
1371 		}
1372 		if (!match)
1373 			continue;
1374 
1375 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1376 		status = qla2x00_eh_wait_on_command(cmd);
1377 		spin_lock_irqsave(&ha->hardware_lock, flags);
1378 	}
1379 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1380 
1381 	return status;
1382 }
1383 
1384 static char *reset_errors[] = {
1385 	"HBA not online",
1386 	"HBA not ready",
1387 	"Task management failed",
1388 	"Waiting for command completions",
1389 };
1390 
1391 static int
1392 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1393 {
1394 	struct scsi_device *sdev = cmd->device;
1395 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1396 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1397 	fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1398 	struct qla_hw_data *ha = vha->hw;
1399 	int err;
1400 
1401 	if (qla2x00_isp_reg_stat(ha)) {
1402 		ql_log(ql_log_info, vha, 0x803e,
1403 		    "PCI/Register disconnect, exiting.\n");
1404 		qla_pci_set_eeh_busy(vha);
1405 		return FAILED;
1406 	}
1407 
1408 	if (!fcport) {
1409 		return FAILED;
1410 	}
1411 
1412 	err = fc_block_rport(rport);
1413 	if (err != 0)
1414 		return err;
1415 
1416 	if (fcport->deleted)
1417 		return SUCCESS;
1418 
1419 	ql_log(ql_log_info, vha, 0x8009,
1420 	    "DEVICE RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", vha->host_no,
1421 	    sdev->id, sdev->lun, cmd);
1422 
1423 	err = 0;
1424 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1425 		ql_log(ql_log_warn, vha, 0x800a,
1426 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1427 		goto eh_reset_failed;
1428 	}
1429 	err = 2;
1430 	if (ha->isp_ops->lun_reset(fcport, sdev->lun, 1)
1431 		!= QLA_SUCCESS) {
1432 		ql_log(ql_log_warn, vha, 0x800c,
1433 		    "do_reset failed for cmd=%p.\n", cmd);
1434 		goto eh_reset_failed;
1435 	}
1436 	err = 3;
1437 	if (qla2x00_eh_wait_for_pending_commands(vha, sdev->id,
1438 	    sdev->lun, WAIT_LUN) != QLA_SUCCESS) {
1439 		ql_log(ql_log_warn, vha, 0x800d,
1440 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1441 		goto eh_reset_failed;
1442 	}
1443 
1444 	ql_log(ql_log_info, vha, 0x800e,
1445 	    "DEVICE RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n",
1446 	    vha->host_no, sdev->id, sdev->lun, cmd);
1447 
1448 	return SUCCESS;
1449 
1450 eh_reset_failed:
1451 	ql_log(ql_log_info, vha, 0x800f,
1452 	    "DEVICE RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
1453 	    reset_errors[err], vha->host_no, sdev->id, sdev->lun,
1454 	    cmd);
1455 	vha->reset_cmd_err_cnt++;
1456 	return FAILED;
1457 }
1458 
1459 static int
1460 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1461 {
1462 	struct scsi_device *sdev = cmd->device;
1463 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1464 	scsi_qla_host_t *vha = shost_priv(rport_to_shost(rport));
1465 	struct qla_hw_data *ha = vha->hw;
1466 	fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
1467 	int err;
1468 
1469 	if (qla2x00_isp_reg_stat(ha)) {
1470 		ql_log(ql_log_info, vha, 0x803f,
1471 		    "PCI/Register disconnect, exiting.\n");
1472 		qla_pci_set_eeh_busy(vha);
1473 		return FAILED;
1474 	}
1475 
1476 	if (!fcport) {
1477 		return FAILED;
1478 	}
1479 
1480 	err = fc_block_rport(rport);
1481 	if (err != 0)
1482 		return err;
1483 
1484 	if (fcport->deleted)
1485 		return SUCCESS;
1486 
1487 	ql_log(ql_log_info, vha, 0x8009,
1488 	    "TARGET RESET ISSUED nexus=%ld:%d cmd=%p.\n", vha->host_no,
1489 	    sdev->id, cmd);
1490 
1491 	err = 0;
1492 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1493 		ql_log(ql_log_warn, vha, 0x800a,
1494 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1495 		goto eh_reset_failed;
1496 	}
1497 	err = 2;
1498 	if (ha->isp_ops->target_reset(fcport, 0, 0) != QLA_SUCCESS) {
1499 		ql_log(ql_log_warn, vha, 0x800c,
1500 		    "target_reset failed for cmd=%p.\n", cmd);
1501 		goto eh_reset_failed;
1502 	}
1503 	err = 3;
1504 	if (qla2x00_eh_wait_for_pending_commands(vha, sdev->id,
1505 	    0, WAIT_TARGET) != QLA_SUCCESS) {
1506 		ql_log(ql_log_warn, vha, 0x800d,
1507 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1508 		goto eh_reset_failed;
1509 	}
1510 
1511 	ql_log(ql_log_info, vha, 0x800e,
1512 	    "TARGET RESET SUCCEEDED nexus:%ld:%d cmd=%p.\n",
1513 	    vha->host_no, sdev->id, cmd);
1514 
1515 	return SUCCESS;
1516 
1517 eh_reset_failed:
1518 	ql_log(ql_log_info, vha, 0x800f,
1519 	    "TARGET RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
1520 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1521 	    cmd);
1522 	vha->reset_cmd_err_cnt++;
1523 	return FAILED;
1524 }
1525 
1526 /**************************************************************************
1527 * qla2xxx_eh_bus_reset
1528 *
1529 * Description:
1530 *    The bus reset function will reset the bus and abort any executing
1531 *    commands.
1532 *
1533 * Input:
1534 *    cmd = Linux SCSI command packet of the command that cause the
1535 *          bus reset.
1536 *
1537 * Returns:
1538 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1539 *
1540 **************************************************************************/
1541 static int
1542 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1543 {
1544 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1545 	int ret = FAILED;
1546 	unsigned int id;
1547 	uint64_t lun;
1548 	struct qla_hw_data *ha = vha->hw;
1549 
1550 	if (qla2x00_isp_reg_stat(ha)) {
1551 		ql_log(ql_log_info, vha, 0x8040,
1552 		    "PCI/Register disconnect, exiting.\n");
1553 		qla_pci_set_eeh_busy(vha);
1554 		return FAILED;
1555 	}
1556 
1557 	id = cmd->device->id;
1558 	lun = cmd->device->lun;
1559 
1560 	if (qla2x00_chip_is_down(vha))
1561 		return ret;
1562 
1563 	ql_log(ql_log_info, vha, 0x8012,
1564 	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1565 
1566 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1567 		ql_log(ql_log_fatal, vha, 0x8013,
1568 		    "Wait for hba online failed board disabled.\n");
1569 		goto eh_bus_reset_done;
1570 	}
1571 
1572 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1573 		ret = SUCCESS;
1574 
1575 	if (ret == FAILED)
1576 		goto eh_bus_reset_done;
1577 
1578 	/* Flush outstanding commands. */
1579 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1580 	    QLA_SUCCESS) {
1581 		ql_log(ql_log_warn, vha, 0x8014,
1582 		    "Wait for pending commands failed.\n");
1583 		ret = FAILED;
1584 	}
1585 
1586 eh_bus_reset_done:
1587 	ql_log(ql_log_warn, vha, 0x802b,
1588 	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
1589 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1590 
1591 	return ret;
1592 }
1593 
1594 /**************************************************************************
1595 * qla2xxx_eh_host_reset
1596 *
1597 * Description:
1598 *    The reset function will reset the Adapter.
1599 *
1600 * Input:
1601 *      cmd = Linux SCSI command packet of the command that cause the
1602 *            adapter reset.
1603 *
1604 * Returns:
1605 *      Either SUCCESS or FAILED.
1606 *
1607 * Note:
1608 **************************************************************************/
1609 static int
1610 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1611 {
1612 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1613 	struct qla_hw_data *ha = vha->hw;
1614 	int ret = FAILED;
1615 	unsigned int id;
1616 	uint64_t lun;
1617 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1618 
1619 	if (qla2x00_isp_reg_stat(ha)) {
1620 		ql_log(ql_log_info, vha, 0x8041,
1621 		    "PCI/Register disconnect, exiting.\n");
1622 		qla_pci_set_eeh_busy(vha);
1623 		return SUCCESS;
1624 	}
1625 
1626 	id = cmd->device->id;
1627 	lun = cmd->device->lun;
1628 
1629 	ql_log(ql_log_info, vha, 0x8018,
1630 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1631 
1632 	/*
1633 	 * No point in issuing another reset if one is active.  Also do not
1634 	 * attempt a reset if we are updating flash.
1635 	 */
1636 	if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
1637 		goto eh_host_reset_lock;
1638 
1639 	if (vha != base_vha) {
1640 		if (qla2x00_vp_abort_isp(vha))
1641 			goto eh_host_reset_lock;
1642 	} else {
1643 		if (IS_P3P_TYPE(vha->hw)) {
1644 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1645 				/* Ctx reset success */
1646 				ret = SUCCESS;
1647 				goto eh_host_reset_lock;
1648 			}
1649 			/* fall thru if ctx reset failed */
1650 		}
1651 		if (ha->wq)
1652 			flush_workqueue(ha->wq);
1653 
1654 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1655 		if (ha->isp_ops->abort_isp(base_vha)) {
1656 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1657 			/* failed. schedule dpc to try */
1658 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1659 
1660 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1661 				ql_log(ql_log_warn, vha, 0x802a,
1662 				    "wait for hba online failed.\n");
1663 				goto eh_host_reset_lock;
1664 			}
1665 		}
1666 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1667 	}
1668 
1669 	/* Waiting for command to be returned to OS.*/
1670 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1671 		QLA_SUCCESS)
1672 		ret = SUCCESS;
1673 
1674 eh_host_reset_lock:
1675 	ql_log(ql_log_info, vha, 0x8017,
1676 	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
1677 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1678 
1679 	return ret;
1680 }
1681 
1682 /*
1683 * qla2x00_loop_reset
1684 *      Issue loop reset.
1685 *
1686 * Input:
1687 *      ha = adapter block pointer.
1688 *
1689 * Returns:
1690 *      0 = success
1691 */
1692 int
1693 qla2x00_loop_reset(scsi_qla_host_t *vha)
1694 {
1695 	int ret;
1696 	struct fc_port *fcport;
1697 	struct qla_hw_data *ha = vha->hw;
1698 
1699 	if (IS_QLAFX00(ha)) {
1700 		return qlafx00_loop_reset(vha);
1701 	}
1702 
1703 	if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1704 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1705 			if (fcport->port_type != FCT_TARGET)
1706 				continue;
1707 
1708 			ret = ha->isp_ops->target_reset(fcport, 0, 0);
1709 			if (ret != QLA_SUCCESS) {
1710 				ql_dbg(ql_dbg_taskm, vha, 0x802c,
1711 				    "Bus Reset failed: Reset=%d "
1712 				    "d_id=%x.\n", ret, fcport->d_id.b24);
1713 			}
1714 		}
1715 	}
1716 
1717 
1718 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1719 		atomic_set(&vha->loop_state, LOOP_DOWN);
1720 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1721 		qla2x00_mark_all_devices_lost(vha);
1722 		ret = qla2x00_full_login_lip(vha);
1723 		if (ret != QLA_SUCCESS) {
1724 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1725 			    "full_login_lip=%d.\n", ret);
1726 		}
1727 	}
1728 
1729 	if (ha->flags.enable_lip_reset) {
1730 		ret = qla2x00_lip_reset(vha);
1731 		if (ret != QLA_SUCCESS)
1732 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1733 			    "lip_reset failed (%d).\n", ret);
1734 	}
1735 
1736 	/* Issue marker command only when we are going to start the I/O */
1737 	vha->marker_needed = 1;
1738 
1739 	return QLA_SUCCESS;
1740 }
1741 
1742 /*
1743  * The caller must ensure that no completion interrupts will happen
1744  * while this function is in progress.
1745  */
1746 static void qla2x00_abort_srb(struct qla_qpair *qp, srb_t *sp, const int res,
1747 			      unsigned long *flags)
1748 	__releases(qp->qp_lock_ptr)
1749 	__acquires(qp->qp_lock_ptr)
1750 {
1751 	DECLARE_COMPLETION_ONSTACK(comp);
1752 	scsi_qla_host_t *vha = qp->vha;
1753 	struct qla_hw_data *ha = vha->hw;
1754 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1755 	int rval;
1756 	bool ret_cmd;
1757 	uint32_t ratov_j;
1758 
1759 	lockdep_assert_held(qp->qp_lock_ptr);
1760 
1761 	if (qla2x00_chip_is_down(vha)) {
1762 		sp->done(sp, res);
1763 		return;
1764 	}
1765 
1766 	if (sp->type == SRB_NVME_CMD || sp->type == SRB_NVME_LS ||
1767 	    (sp->type == SRB_SCSI_CMD && !ha->flags.eeh_busy &&
1768 	     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
1769 	     !qla2x00_isp_reg_stat(ha))) {
1770 		if (sp->comp) {
1771 			sp->done(sp, res);
1772 			return;
1773 		}
1774 
1775 		sp->comp = &comp;
1776 		spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
1777 
1778 		rval = ha->isp_ops->abort_command(sp);
1779 		/* Wait for command completion. */
1780 		ret_cmd = false;
1781 		ratov_j = ha->r_a_tov/10 * 4 * 1000;
1782 		ratov_j = msecs_to_jiffies(ratov_j);
1783 		switch (rval) {
1784 		case QLA_SUCCESS:
1785 			if (wait_for_completion_timeout(&comp, ratov_j)) {
1786 				ql_dbg(ql_dbg_taskm, vha, 0xffff,
1787 				    "%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
1788 				    __func__, ha->r_a_tov/10);
1789 				ret_cmd = true;
1790 			}
1791 			/* else FW return SP to driver */
1792 			break;
1793 		default:
1794 			ret_cmd = true;
1795 			break;
1796 		}
1797 
1798 		spin_lock_irqsave(qp->qp_lock_ptr, *flags);
1799 		if (ret_cmd && blk_mq_request_started(scsi_cmd_to_rq(cmd)))
1800 			sp->done(sp, res);
1801 	} else {
1802 		sp->done(sp, res);
1803 	}
1804 }
1805 
1806 /*
1807  * The caller must ensure that no completion interrupts will happen
1808  * while this function is in progress.
1809  */
1810 static void
1811 __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
1812 {
1813 	int cnt;
1814 	unsigned long flags;
1815 	srb_t *sp;
1816 	scsi_qla_host_t *vha = qp->vha;
1817 	struct qla_hw_data *ha = vha->hw;
1818 	struct req_que *req;
1819 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1820 	struct qla_tgt_cmd *cmd;
1821 
1822 	if (!ha->req_q_map)
1823 		return;
1824 	spin_lock_irqsave(qp->qp_lock_ptr, flags);
1825 	req = qp->req;
1826 	for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1827 		sp = req->outstanding_cmds[cnt];
1828 		if (sp) {
1829 			switch (sp->cmd_type) {
1830 			case TYPE_SRB:
1831 				qla2x00_abort_srb(qp, sp, res, &flags);
1832 				break;
1833 			case TYPE_TGT_CMD:
1834 				if (!vha->hw->tgt.tgt_ops || !tgt ||
1835 				    qla_ini_mode_enabled(vha)) {
1836 					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
1837 					    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
1838 					    vha->dpc_flags);
1839 					continue;
1840 				}
1841 				cmd = (struct qla_tgt_cmd *)sp;
1842 				cmd->aborted = 1;
1843 				break;
1844 			case TYPE_TGT_TMCMD:
1845 				/* Skip task management functions. */
1846 				break;
1847 			default:
1848 				break;
1849 			}
1850 			req->outstanding_cmds[cnt] = NULL;
1851 		}
1852 	}
1853 	spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1854 }
1855 
1856 /*
1857  * The caller must ensure that no completion interrupts will happen
1858  * while this function is in progress.
1859  */
1860 void
1861 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1862 {
1863 	int que;
1864 	struct qla_hw_data *ha = vha->hw;
1865 
1866 	/* Continue only if initialization complete. */
1867 	if (!ha->base_qpair)
1868 		return;
1869 	__qla2x00_abort_all_cmds(ha->base_qpair, res);
1870 
1871 	if (!ha->queue_pair_map)
1872 		return;
1873 	for (que = 0; que < ha->max_qpairs; que++) {
1874 		if (!ha->queue_pair_map[que])
1875 			continue;
1876 
1877 		__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
1878 	}
1879 }
1880 
1881 static int
1882 qla2xxx_slave_alloc(struct scsi_device *sdev)
1883 {
1884 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1885 
1886 	if (!rport || fc_remote_port_chkready(rport))
1887 		return -ENXIO;
1888 
1889 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1890 
1891 	return 0;
1892 }
1893 
1894 static int
1895 qla2xxx_slave_configure(struct scsi_device *sdev)
1896 {
1897 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1898 	struct req_que *req = vha->req;
1899 
1900 	if (IS_T10_PI_CAPABLE(vha->hw))
1901 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1902 
1903 	scsi_change_queue_depth(sdev, req->max_q_depth);
1904 	return 0;
1905 }
1906 
1907 static void
1908 qla2xxx_slave_destroy(struct scsi_device *sdev)
1909 {
1910 	sdev->hostdata = NULL;
1911 }
1912 
1913 /**
1914  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1915  * @ha: HA context
1916  *
1917  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1918  * supported addressing method.
1919  */
1920 static void
1921 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1922 {
1923 	/* Assume a 32bit DMA mask. */
1924 	ha->flags.enable_64bit_addressing = 0;
1925 
1926 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1927 		/* Any upper-dword bits set? */
1928 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1929 		    !dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1930 			/* Ok, a 64bit DMA mask is applicable. */
1931 			ha->flags.enable_64bit_addressing = 1;
1932 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1933 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1934 			return;
1935 		}
1936 	}
1937 
1938 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1939 	dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1940 }
1941 
1942 static void
1943 qla2x00_enable_intrs(struct qla_hw_data *ha)
1944 {
1945 	unsigned long flags = 0;
1946 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1947 
1948 	spin_lock_irqsave(&ha->hardware_lock, flags);
1949 	ha->interrupts_on = 1;
1950 	/* enable risc and host interrupts */
1951 	wrt_reg_word(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1952 	rd_reg_word(&reg->ictrl);
1953 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1954 
1955 }
1956 
1957 static void
1958 qla2x00_disable_intrs(struct qla_hw_data *ha)
1959 {
1960 	unsigned long flags = 0;
1961 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1962 
1963 	spin_lock_irqsave(&ha->hardware_lock, flags);
1964 	ha->interrupts_on = 0;
1965 	/* disable risc and host interrupts */
1966 	wrt_reg_word(&reg->ictrl, 0);
1967 	rd_reg_word(&reg->ictrl);
1968 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1969 }
1970 
1971 static void
1972 qla24xx_enable_intrs(struct qla_hw_data *ha)
1973 {
1974 	unsigned long flags = 0;
1975 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1976 
1977 	spin_lock_irqsave(&ha->hardware_lock, flags);
1978 	ha->interrupts_on = 1;
1979 	wrt_reg_dword(&reg->ictrl, ICRX_EN_RISC_INT);
1980 	rd_reg_dword(&reg->ictrl);
1981 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1982 }
1983 
1984 static void
1985 qla24xx_disable_intrs(struct qla_hw_data *ha)
1986 {
1987 	unsigned long flags = 0;
1988 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1989 
1990 	if (IS_NOPOLLING_TYPE(ha))
1991 		return;
1992 	spin_lock_irqsave(&ha->hardware_lock, flags);
1993 	ha->interrupts_on = 0;
1994 	wrt_reg_dword(&reg->ictrl, 0);
1995 	rd_reg_dword(&reg->ictrl);
1996 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1997 }
1998 
1999 static int
2000 qla2x00_iospace_config(struct qla_hw_data *ha)
2001 {
2002 	resource_size_t pio;
2003 	uint16_t msix;
2004 
2005 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2006 	    QLA2XXX_DRIVER_NAME)) {
2007 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
2008 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2009 		    pci_name(ha->pdev));
2010 		goto iospace_error_exit;
2011 	}
2012 	if (!(ha->bars & 1))
2013 		goto skip_pio;
2014 
2015 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
2016 	pio = pci_resource_start(ha->pdev, 0);
2017 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
2018 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2019 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
2020 			    "Invalid pci I/O region size (%s).\n",
2021 			    pci_name(ha->pdev));
2022 			pio = 0;
2023 		}
2024 	} else {
2025 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
2026 		    "Region #0 no a PIO resource (%s).\n",
2027 		    pci_name(ha->pdev));
2028 		pio = 0;
2029 	}
2030 	ha->pio_address = pio;
2031 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
2032 	    "PIO address=%llu.\n",
2033 	    (unsigned long long)ha->pio_address);
2034 
2035 skip_pio:
2036 	/* Use MMIO operations for all accesses. */
2037 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
2038 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
2039 		    "Region #1 not an MMIO resource (%s), aborting.\n",
2040 		    pci_name(ha->pdev));
2041 		goto iospace_error_exit;
2042 	}
2043 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
2044 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
2045 		    "Invalid PCI mem region size (%s), aborting.\n",
2046 		    pci_name(ha->pdev));
2047 		goto iospace_error_exit;
2048 	}
2049 
2050 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
2051 	if (!ha->iobase) {
2052 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
2053 		    "Cannot remap MMIO (%s), aborting.\n",
2054 		    pci_name(ha->pdev));
2055 		goto iospace_error_exit;
2056 	}
2057 
2058 	/* Determine queue resources */
2059 	ha->max_req_queues = ha->max_rsp_queues = 1;
2060 	ha->msix_count = QLA_BASE_VECTORS;
2061 
2062 	/* Check if FW supports MQ or not */
2063 	if (!(ha->fw_attributes & BIT_6))
2064 		goto mqiobase_exit;
2065 
2066 	if (!ql2xmqsupport || !ql2xnvmeenable ||
2067 	    (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
2068 		goto mqiobase_exit;
2069 
2070 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
2071 			pci_resource_len(ha->pdev, 3));
2072 	if (ha->mqiobase) {
2073 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
2074 		    "MQIO Base=%p.\n", ha->mqiobase);
2075 		/* Read MSIX vector size of the board */
2076 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
2077 		ha->msix_count = msix + 1;
2078 		/* Max queues are bounded by available msix vectors */
2079 		/* MB interrupt uses 1 vector */
2080 		ha->max_req_queues = ha->msix_count - 1;
2081 		ha->max_rsp_queues = ha->max_req_queues;
2082 		/* Queue pairs is the max value minus the base queue pair */
2083 		ha->max_qpairs = ha->max_rsp_queues - 1;
2084 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
2085 		    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2086 
2087 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
2088 		    "MSI-X vector count: %d.\n", ha->msix_count);
2089 	} else
2090 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
2091 		    "BAR 3 not enabled.\n");
2092 
2093 mqiobase_exit:
2094 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
2095 	    "MSIX Count: %d.\n", ha->msix_count);
2096 	return (0);
2097 
2098 iospace_error_exit:
2099 	return (-ENOMEM);
2100 }
2101 
2102 
2103 static int
2104 qla83xx_iospace_config(struct qla_hw_data *ha)
2105 {
2106 	uint16_t msix;
2107 
2108 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2109 	    QLA2XXX_DRIVER_NAME)) {
2110 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
2111 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2112 		    pci_name(ha->pdev));
2113 
2114 		goto iospace_error_exit;
2115 	}
2116 
2117 	/* Use MMIO operations for all accesses. */
2118 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
2119 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
2120 		    "Invalid pci I/O region size (%s).\n",
2121 		    pci_name(ha->pdev));
2122 		goto iospace_error_exit;
2123 	}
2124 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2125 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
2126 		    "Invalid PCI mem region size (%s), aborting\n",
2127 			pci_name(ha->pdev));
2128 		goto iospace_error_exit;
2129 	}
2130 
2131 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
2132 	if (!ha->iobase) {
2133 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
2134 		    "Cannot remap MMIO (%s), aborting.\n",
2135 		    pci_name(ha->pdev));
2136 		goto iospace_error_exit;
2137 	}
2138 
2139 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
2140 	/* 83XX 26XX always use MQ type access for queues
2141 	 * - mbar 2, a.k.a region 4 */
2142 	ha->max_req_queues = ha->max_rsp_queues = 1;
2143 	ha->msix_count = QLA_BASE_VECTORS;
2144 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
2145 			pci_resource_len(ha->pdev, 4));
2146 
2147 	if (!ha->mqiobase) {
2148 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
2149 		    "BAR2/region4 not enabled\n");
2150 		goto mqiobase_exit;
2151 	}
2152 
2153 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
2154 			pci_resource_len(ha->pdev, 2));
2155 	if (ha->msixbase) {
2156 		/* Read MSIX vector size of the board */
2157 		pci_read_config_word(ha->pdev,
2158 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
2159 		ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE)  + 1;
2160 		/*
2161 		 * By default, driver uses at least two msix vectors
2162 		 * (default & rspq)
2163 		 */
2164 		if (ql2xmqsupport || ql2xnvmeenable) {
2165 			/* MB interrupt uses 1 vector */
2166 			ha->max_req_queues = ha->msix_count - 1;
2167 
2168 			/* ATIOQ needs 1 vector. That's 1 less QPair */
2169 			if (QLA_TGT_MODE_ENABLED())
2170 				ha->max_req_queues--;
2171 
2172 			ha->max_rsp_queues = ha->max_req_queues;
2173 
2174 			/* Queue pairs is the max value minus
2175 			 * the base queue pair */
2176 			ha->max_qpairs = ha->max_req_queues - 1;
2177 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x00e3,
2178 			    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2179 		}
2180 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
2181 		    "MSI-X vector count: %d.\n", ha->msix_count);
2182 	} else
2183 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
2184 		    "BAR 1 not enabled.\n");
2185 
2186 mqiobase_exit:
2187 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
2188 	    "MSIX Count: %d.\n", ha->msix_count);
2189 	return 0;
2190 
2191 iospace_error_exit:
2192 	return -ENOMEM;
2193 }
2194 
2195 static struct isp_operations qla2100_isp_ops = {
2196 	.pci_config		= qla2100_pci_config,
2197 	.reset_chip		= qla2x00_reset_chip,
2198 	.chip_diag		= qla2x00_chip_diag,
2199 	.config_rings		= qla2x00_config_rings,
2200 	.reset_adapter		= qla2x00_reset_adapter,
2201 	.nvram_config		= qla2x00_nvram_config,
2202 	.update_fw_options	= qla2x00_update_fw_options,
2203 	.load_risc		= qla2x00_load_risc,
2204 	.pci_info_str		= qla2x00_pci_info_str,
2205 	.fw_version_str		= qla2x00_fw_version_str,
2206 	.intr_handler		= qla2100_intr_handler,
2207 	.enable_intrs		= qla2x00_enable_intrs,
2208 	.disable_intrs		= qla2x00_disable_intrs,
2209 	.abort_command		= qla2x00_abort_command,
2210 	.target_reset		= qla2x00_abort_target,
2211 	.lun_reset		= qla2x00_lun_reset,
2212 	.fabric_login		= qla2x00_login_fabric,
2213 	.fabric_logout		= qla2x00_fabric_logout,
2214 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2215 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2216 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2217 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2218 	.read_nvram		= qla2x00_read_nvram_data,
2219 	.write_nvram		= qla2x00_write_nvram_data,
2220 	.fw_dump		= qla2100_fw_dump,
2221 	.beacon_on		= NULL,
2222 	.beacon_off		= NULL,
2223 	.beacon_blink		= NULL,
2224 	.read_optrom		= qla2x00_read_optrom_data,
2225 	.write_optrom		= qla2x00_write_optrom_data,
2226 	.get_flash_version	= qla2x00_get_flash_version,
2227 	.start_scsi		= qla2x00_start_scsi,
2228 	.start_scsi_mq          = NULL,
2229 	.abort_isp		= qla2x00_abort_isp,
2230 	.iospace_config     	= qla2x00_iospace_config,
2231 	.initialize_adapter	= qla2x00_initialize_adapter,
2232 };
2233 
2234 static struct isp_operations qla2300_isp_ops = {
2235 	.pci_config		= qla2300_pci_config,
2236 	.reset_chip		= qla2x00_reset_chip,
2237 	.chip_diag		= qla2x00_chip_diag,
2238 	.config_rings		= qla2x00_config_rings,
2239 	.reset_adapter		= qla2x00_reset_adapter,
2240 	.nvram_config		= qla2x00_nvram_config,
2241 	.update_fw_options	= qla2x00_update_fw_options,
2242 	.load_risc		= qla2x00_load_risc,
2243 	.pci_info_str		= qla2x00_pci_info_str,
2244 	.fw_version_str		= qla2x00_fw_version_str,
2245 	.intr_handler		= qla2300_intr_handler,
2246 	.enable_intrs		= qla2x00_enable_intrs,
2247 	.disable_intrs		= qla2x00_disable_intrs,
2248 	.abort_command		= qla2x00_abort_command,
2249 	.target_reset		= qla2x00_abort_target,
2250 	.lun_reset		= qla2x00_lun_reset,
2251 	.fabric_login		= qla2x00_login_fabric,
2252 	.fabric_logout		= qla2x00_fabric_logout,
2253 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2254 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2255 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2256 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2257 	.read_nvram		= qla2x00_read_nvram_data,
2258 	.write_nvram		= qla2x00_write_nvram_data,
2259 	.fw_dump		= qla2300_fw_dump,
2260 	.beacon_on		= qla2x00_beacon_on,
2261 	.beacon_off		= qla2x00_beacon_off,
2262 	.beacon_blink		= qla2x00_beacon_blink,
2263 	.read_optrom		= qla2x00_read_optrom_data,
2264 	.write_optrom		= qla2x00_write_optrom_data,
2265 	.get_flash_version	= qla2x00_get_flash_version,
2266 	.start_scsi		= qla2x00_start_scsi,
2267 	.start_scsi_mq          = NULL,
2268 	.abort_isp		= qla2x00_abort_isp,
2269 	.iospace_config		= qla2x00_iospace_config,
2270 	.initialize_adapter	= qla2x00_initialize_adapter,
2271 };
2272 
2273 static struct isp_operations qla24xx_isp_ops = {
2274 	.pci_config		= qla24xx_pci_config,
2275 	.reset_chip		= qla24xx_reset_chip,
2276 	.chip_diag		= qla24xx_chip_diag,
2277 	.config_rings		= qla24xx_config_rings,
2278 	.reset_adapter		= qla24xx_reset_adapter,
2279 	.nvram_config		= qla24xx_nvram_config,
2280 	.update_fw_options	= qla24xx_update_fw_options,
2281 	.load_risc		= qla24xx_load_risc,
2282 	.pci_info_str		= qla24xx_pci_info_str,
2283 	.fw_version_str		= qla24xx_fw_version_str,
2284 	.intr_handler		= qla24xx_intr_handler,
2285 	.enable_intrs		= qla24xx_enable_intrs,
2286 	.disable_intrs		= qla24xx_disable_intrs,
2287 	.abort_command		= qla24xx_abort_command,
2288 	.target_reset		= qla24xx_abort_target,
2289 	.lun_reset		= qla24xx_lun_reset,
2290 	.fabric_login		= qla24xx_login_fabric,
2291 	.fabric_logout		= qla24xx_fabric_logout,
2292 	.calc_req_entries	= NULL,
2293 	.build_iocbs		= NULL,
2294 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2295 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2296 	.read_nvram		= qla24xx_read_nvram_data,
2297 	.write_nvram		= qla24xx_write_nvram_data,
2298 	.fw_dump		= qla24xx_fw_dump,
2299 	.beacon_on		= qla24xx_beacon_on,
2300 	.beacon_off		= qla24xx_beacon_off,
2301 	.beacon_blink		= qla24xx_beacon_blink,
2302 	.read_optrom		= qla24xx_read_optrom_data,
2303 	.write_optrom		= qla24xx_write_optrom_data,
2304 	.get_flash_version	= qla24xx_get_flash_version,
2305 	.start_scsi		= qla24xx_start_scsi,
2306 	.start_scsi_mq          = NULL,
2307 	.abort_isp		= qla2x00_abort_isp,
2308 	.iospace_config		= qla2x00_iospace_config,
2309 	.initialize_adapter	= qla2x00_initialize_adapter,
2310 };
2311 
2312 static struct isp_operations qla25xx_isp_ops = {
2313 	.pci_config		= qla25xx_pci_config,
2314 	.reset_chip		= qla24xx_reset_chip,
2315 	.chip_diag		= qla24xx_chip_diag,
2316 	.config_rings		= qla24xx_config_rings,
2317 	.reset_adapter		= qla24xx_reset_adapter,
2318 	.nvram_config		= qla24xx_nvram_config,
2319 	.update_fw_options	= qla24xx_update_fw_options,
2320 	.load_risc		= qla24xx_load_risc,
2321 	.pci_info_str		= qla24xx_pci_info_str,
2322 	.fw_version_str		= qla24xx_fw_version_str,
2323 	.intr_handler		= qla24xx_intr_handler,
2324 	.enable_intrs		= qla24xx_enable_intrs,
2325 	.disable_intrs		= qla24xx_disable_intrs,
2326 	.abort_command		= qla24xx_abort_command,
2327 	.target_reset		= qla24xx_abort_target,
2328 	.lun_reset		= qla24xx_lun_reset,
2329 	.fabric_login		= qla24xx_login_fabric,
2330 	.fabric_logout		= qla24xx_fabric_logout,
2331 	.calc_req_entries	= NULL,
2332 	.build_iocbs		= NULL,
2333 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2334 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2335 	.read_nvram		= qla25xx_read_nvram_data,
2336 	.write_nvram		= qla25xx_write_nvram_data,
2337 	.fw_dump		= qla25xx_fw_dump,
2338 	.beacon_on		= qla24xx_beacon_on,
2339 	.beacon_off		= qla24xx_beacon_off,
2340 	.beacon_blink		= qla24xx_beacon_blink,
2341 	.read_optrom		= qla25xx_read_optrom_data,
2342 	.write_optrom		= qla24xx_write_optrom_data,
2343 	.get_flash_version	= qla24xx_get_flash_version,
2344 	.start_scsi		= qla24xx_dif_start_scsi,
2345 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2346 	.abort_isp		= qla2x00_abort_isp,
2347 	.iospace_config		= qla2x00_iospace_config,
2348 	.initialize_adapter	= qla2x00_initialize_adapter,
2349 };
2350 
2351 static struct isp_operations qla81xx_isp_ops = {
2352 	.pci_config		= qla25xx_pci_config,
2353 	.reset_chip		= qla24xx_reset_chip,
2354 	.chip_diag		= qla24xx_chip_diag,
2355 	.config_rings		= qla24xx_config_rings,
2356 	.reset_adapter		= qla24xx_reset_adapter,
2357 	.nvram_config		= qla81xx_nvram_config,
2358 	.update_fw_options	= qla24xx_update_fw_options,
2359 	.load_risc		= qla81xx_load_risc,
2360 	.pci_info_str		= qla24xx_pci_info_str,
2361 	.fw_version_str		= qla24xx_fw_version_str,
2362 	.intr_handler		= qla24xx_intr_handler,
2363 	.enable_intrs		= qla24xx_enable_intrs,
2364 	.disable_intrs		= qla24xx_disable_intrs,
2365 	.abort_command		= qla24xx_abort_command,
2366 	.target_reset		= qla24xx_abort_target,
2367 	.lun_reset		= qla24xx_lun_reset,
2368 	.fabric_login		= qla24xx_login_fabric,
2369 	.fabric_logout		= qla24xx_fabric_logout,
2370 	.calc_req_entries	= NULL,
2371 	.build_iocbs		= NULL,
2372 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2373 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2374 	.read_nvram		= NULL,
2375 	.write_nvram		= NULL,
2376 	.fw_dump		= qla81xx_fw_dump,
2377 	.beacon_on		= qla24xx_beacon_on,
2378 	.beacon_off		= qla24xx_beacon_off,
2379 	.beacon_blink		= qla83xx_beacon_blink,
2380 	.read_optrom		= qla25xx_read_optrom_data,
2381 	.write_optrom		= qla24xx_write_optrom_data,
2382 	.get_flash_version	= qla24xx_get_flash_version,
2383 	.start_scsi		= qla24xx_dif_start_scsi,
2384 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2385 	.abort_isp		= qla2x00_abort_isp,
2386 	.iospace_config		= qla2x00_iospace_config,
2387 	.initialize_adapter	= qla2x00_initialize_adapter,
2388 };
2389 
2390 static struct isp_operations qla82xx_isp_ops = {
2391 	.pci_config		= qla82xx_pci_config,
2392 	.reset_chip		= qla82xx_reset_chip,
2393 	.chip_diag		= qla24xx_chip_diag,
2394 	.config_rings		= qla82xx_config_rings,
2395 	.reset_adapter		= qla24xx_reset_adapter,
2396 	.nvram_config		= qla81xx_nvram_config,
2397 	.update_fw_options	= qla24xx_update_fw_options,
2398 	.load_risc		= qla82xx_load_risc,
2399 	.pci_info_str		= qla24xx_pci_info_str,
2400 	.fw_version_str		= qla24xx_fw_version_str,
2401 	.intr_handler		= qla82xx_intr_handler,
2402 	.enable_intrs		= qla82xx_enable_intrs,
2403 	.disable_intrs		= qla82xx_disable_intrs,
2404 	.abort_command		= qla24xx_abort_command,
2405 	.target_reset		= qla24xx_abort_target,
2406 	.lun_reset		= qla24xx_lun_reset,
2407 	.fabric_login		= qla24xx_login_fabric,
2408 	.fabric_logout		= qla24xx_fabric_logout,
2409 	.calc_req_entries	= NULL,
2410 	.build_iocbs		= NULL,
2411 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2412 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2413 	.read_nvram		= qla24xx_read_nvram_data,
2414 	.write_nvram		= qla24xx_write_nvram_data,
2415 	.fw_dump		= qla82xx_fw_dump,
2416 	.beacon_on		= qla82xx_beacon_on,
2417 	.beacon_off		= qla82xx_beacon_off,
2418 	.beacon_blink		= NULL,
2419 	.read_optrom		= qla82xx_read_optrom_data,
2420 	.write_optrom		= qla82xx_write_optrom_data,
2421 	.get_flash_version	= qla82xx_get_flash_version,
2422 	.start_scsi             = qla82xx_start_scsi,
2423 	.start_scsi_mq          = NULL,
2424 	.abort_isp		= qla82xx_abort_isp,
2425 	.iospace_config     	= qla82xx_iospace_config,
2426 	.initialize_adapter	= qla2x00_initialize_adapter,
2427 };
2428 
2429 static struct isp_operations qla8044_isp_ops = {
2430 	.pci_config		= qla82xx_pci_config,
2431 	.reset_chip		= qla82xx_reset_chip,
2432 	.chip_diag		= qla24xx_chip_diag,
2433 	.config_rings		= qla82xx_config_rings,
2434 	.reset_adapter		= qla24xx_reset_adapter,
2435 	.nvram_config		= qla81xx_nvram_config,
2436 	.update_fw_options	= qla24xx_update_fw_options,
2437 	.load_risc		= qla82xx_load_risc,
2438 	.pci_info_str		= qla24xx_pci_info_str,
2439 	.fw_version_str		= qla24xx_fw_version_str,
2440 	.intr_handler		= qla8044_intr_handler,
2441 	.enable_intrs		= qla82xx_enable_intrs,
2442 	.disable_intrs		= qla82xx_disable_intrs,
2443 	.abort_command		= qla24xx_abort_command,
2444 	.target_reset		= qla24xx_abort_target,
2445 	.lun_reset		= qla24xx_lun_reset,
2446 	.fabric_login		= qla24xx_login_fabric,
2447 	.fabric_logout		= qla24xx_fabric_logout,
2448 	.calc_req_entries	= NULL,
2449 	.build_iocbs		= NULL,
2450 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2451 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2452 	.read_nvram		= NULL,
2453 	.write_nvram		= NULL,
2454 	.fw_dump		= qla8044_fw_dump,
2455 	.beacon_on		= qla82xx_beacon_on,
2456 	.beacon_off		= qla82xx_beacon_off,
2457 	.beacon_blink		= NULL,
2458 	.read_optrom		= qla8044_read_optrom_data,
2459 	.write_optrom		= qla8044_write_optrom_data,
2460 	.get_flash_version	= qla82xx_get_flash_version,
2461 	.start_scsi             = qla82xx_start_scsi,
2462 	.start_scsi_mq          = NULL,
2463 	.abort_isp		= qla8044_abort_isp,
2464 	.iospace_config		= qla82xx_iospace_config,
2465 	.initialize_adapter	= qla2x00_initialize_adapter,
2466 };
2467 
2468 static struct isp_operations qla83xx_isp_ops = {
2469 	.pci_config		= qla25xx_pci_config,
2470 	.reset_chip		= qla24xx_reset_chip,
2471 	.chip_diag		= qla24xx_chip_diag,
2472 	.config_rings		= qla24xx_config_rings,
2473 	.reset_adapter		= qla24xx_reset_adapter,
2474 	.nvram_config		= qla81xx_nvram_config,
2475 	.update_fw_options	= qla24xx_update_fw_options,
2476 	.load_risc		= qla81xx_load_risc,
2477 	.pci_info_str		= qla24xx_pci_info_str,
2478 	.fw_version_str		= qla24xx_fw_version_str,
2479 	.intr_handler		= qla24xx_intr_handler,
2480 	.enable_intrs		= qla24xx_enable_intrs,
2481 	.disable_intrs		= qla24xx_disable_intrs,
2482 	.abort_command		= qla24xx_abort_command,
2483 	.target_reset		= qla24xx_abort_target,
2484 	.lun_reset		= qla24xx_lun_reset,
2485 	.fabric_login		= qla24xx_login_fabric,
2486 	.fabric_logout		= qla24xx_fabric_logout,
2487 	.calc_req_entries	= NULL,
2488 	.build_iocbs		= NULL,
2489 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2490 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2491 	.read_nvram		= NULL,
2492 	.write_nvram		= NULL,
2493 	.fw_dump		= qla83xx_fw_dump,
2494 	.beacon_on		= qla24xx_beacon_on,
2495 	.beacon_off		= qla24xx_beacon_off,
2496 	.beacon_blink		= qla83xx_beacon_blink,
2497 	.read_optrom		= qla25xx_read_optrom_data,
2498 	.write_optrom		= qla24xx_write_optrom_data,
2499 	.get_flash_version	= qla24xx_get_flash_version,
2500 	.start_scsi		= qla24xx_dif_start_scsi,
2501 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2502 	.abort_isp		= qla2x00_abort_isp,
2503 	.iospace_config		= qla83xx_iospace_config,
2504 	.initialize_adapter	= qla2x00_initialize_adapter,
2505 };
2506 
2507 static struct isp_operations qlafx00_isp_ops = {
2508 	.pci_config		= qlafx00_pci_config,
2509 	.reset_chip		= qlafx00_soft_reset,
2510 	.chip_diag		= qlafx00_chip_diag,
2511 	.config_rings		= qlafx00_config_rings,
2512 	.reset_adapter		= qlafx00_soft_reset,
2513 	.nvram_config		= NULL,
2514 	.update_fw_options	= NULL,
2515 	.load_risc		= NULL,
2516 	.pci_info_str		= qlafx00_pci_info_str,
2517 	.fw_version_str		= qlafx00_fw_version_str,
2518 	.intr_handler		= qlafx00_intr_handler,
2519 	.enable_intrs		= qlafx00_enable_intrs,
2520 	.disable_intrs		= qlafx00_disable_intrs,
2521 	.abort_command		= qla24xx_async_abort_command,
2522 	.target_reset		= qlafx00_abort_target,
2523 	.lun_reset		= qlafx00_lun_reset,
2524 	.fabric_login		= NULL,
2525 	.fabric_logout		= NULL,
2526 	.calc_req_entries	= NULL,
2527 	.build_iocbs		= NULL,
2528 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2529 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2530 	.read_nvram		= qla24xx_read_nvram_data,
2531 	.write_nvram		= qla24xx_write_nvram_data,
2532 	.fw_dump		= NULL,
2533 	.beacon_on		= qla24xx_beacon_on,
2534 	.beacon_off		= qla24xx_beacon_off,
2535 	.beacon_blink		= NULL,
2536 	.read_optrom		= qla24xx_read_optrom_data,
2537 	.write_optrom		= qla24xx_write_optrom_data,
2538 	.get_flash_version	= qla24xx_get_flash_version,
2539 	.start_scsi		= qlafx00_start_scsi,
2540 	.start_scsi_mq          = NULL,
2541 	.abort_isp		= qlafx00_abort_isp,
2542 	.iospace_config		= qlafx00_iospace_config,
2543 	.initialize_adapter	= qlafx00_initialize_adapter,
2544 };
2545 
2546 static struct isp_operations qla27xx_isp_ops = {
2547 	.pci_config		= qla25xx_pci_config,
2548 	.reset_chip		= qla24xx_reset_chip,
2549 	.chip_diag		= qla24xx_chip_diag,
2550 	.config_rings		= qla24xx_config_rings,
2551 	.reset_adapter		= qla24xx_reset_adapter,
2552 	.nvram_config		= qla81xx_nvram_config,
2553 	.update_fw_options	= qla24xx_update_fw_options,
2554 	.load_risc		= qla81xx_load_risc,
2555 	.pci_info_str		= qla24xx_pci_info_str,
2556 	.fw_version_str		= qla24xx_fw_version_str,
2557 	.intr_handler		= qla24xx_intr_handler,
2558 	.enable_intrs		= qla24xx_enable_intrs,
2559 	.disable_intrs		= qla24xx_disable_intrs,
2560 	.abort_command		= qla24xx_abort_command,
2561 	.target_reset		= qla24xx_abort_target,
2562 	.lun_reset		= qla24xx_lun_reset,
2563 	.fabric_login		= qla24xx_login_fabric,
2564 	.fabric_logout		= qla24xx_fabric_logout,
2565 	.calc_req_entries	= NULL,
2566 	.build_iocbs		= NULL,
2567 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2568 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2569 	.read_nvram		= NULL,
2570 	.write_nvram		= NULL,
2571 	.fw_dump		= qla27xx_fwdump,
2572 	.mpi_fw_dump		= qla27xx_mpi_fwdump,
2573 	.beacon_on		= qla24xx_beacon_on,
2574 	.beacon_off		= qla24xx_beacon_off,
2575 	.beacon_blink		= qla83xx_beacon_blink,
2576 	.read_optrom		= qla25xx_read_optrom_data,
2577 	.write_optrom		= qla24xx_write_optrom_data,
2578 	.get_flash_version	= qla24xx_get_flash_version,
2579 	.start_scsi		= qla24xx_dif_start_scsi,
2580 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2581 	.abort_isp		= qla2x00_abort_isp,
2582 	.iospace_config		= qla83xx_iospace_config,
2583 	.initialize_adapter	= qla2x00_initialize_adapter,
2584 };
2585 
2586 static inline void
2587 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2588 {
2589 	ha->device_type = DT_EXTENDED_IDS;
2590 	switch (ha->pdev->device) {
2591 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2592 		ha->isp_type |= DT_ISP2100;
2593 		ha->device_type &= ~DT_EXTENDED_IDS;
2594 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2595 		break;
2596 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2597 		ha->isp_type |= DT_ISP2200;
2598 		ha->device_type &= ~DT_EXTENDED_IDS;
2599 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2600 		break;
2601 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2602 		ha->isp_type |= DT_ISP2300;
2603 		ha->device_type |= DT_ZIO_SUPPORTED;
2604 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2605 		break;
2606 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2607 		ha->isp_type |= DT_ISP2312;
2608 		ha->device_type |= DT_ZIO_SUPPORTED;
2609 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2610 		break;
2611 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2612 		ha->isp_type |= DT_ISP2322;
2613 		ha->device_type |= DT_ZIO_SUPPORTED;
2614 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2615 		    ha->pdev->subsystem_device == 0x0170)
2616 			ha->device_type |= DT_OEM_001;
2617 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2618 		break;
2619 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2620 		ha->isp_type |= DT_ISP6312;
2621 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2622 		break;
2623 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2624 		ha->isp_type |= DT_ISP6322;
2625 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2626 		break;
2627 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2628 		ha->isp_type |= DT_ISP2422;
2629 		ha->device_type |= DT_ZIO_SUPPORTED;
2630 		ha->device_type |= DT_FWI2;
2631 		ha->device_type |= DT_IIDMA;
2632 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2633 		break;
2634 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2635 		ha->isp_type |= DT_ISP2432;
2636 		ha->device_type |= DT_ZIO_SUPPORTED;
2637 		ha->device_type |= DT_FWI2;
2638 		ha->device_type |= DT_IIDMA;
2639 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2640 		break;
2641 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2642 		ha->isp_type |= DT_ISP8432;
2643 		ha->device_type |= DT_ZIO_SUPPORTED;
2644 		ha->device_type |= DT_FWI2;
2645 		ha->device_type |= DT_IIDMA;
2646 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2647 		break;
2648 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2649 		ha->isp_type |= DT_ISP5422;
2650 		ha->device_type |= DT_FWI2;
2651 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2652 		break;
2653 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2654 		ha->isp_type |= DT_ISP5432;
2655 		ha->device_type |= DT_FWI2;
2656 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2657 		break;
2658 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2659 		ha->isp_type |= DT_ISP2532;
2660 		ha->device_type |= DT_ZIO_SUPPORTED;
2661 		ha->device_type |= DT_FWI2;
2662 		ha->device_type |= DT_IIDMA;
2663 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2664 		break;
2665 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2666 		ha->isp_type |= DT_ISP8001;
2667 		ha->device_type |= DT_ZIO_SUPPORTED;
2668 		ha->device_type |= DT_FWI2;
2669 		ha->device_type |= DT_IIDMA;
2670 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2671 		break;
2672 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2673 		ha->isp_type |= DT_ISP8021;
2674 		ha->device_type |= DT_ZIO_SUPPORTED;
2675 		ha->device_type |= DT_FWI2;
2676 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2677 		/* Initialize 82XX ISP flags */
2678 		qla82xx_init_flags(ha);
2679 		break;
2680 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2681 		ha->isp_type |= DT_ISP8044;
2682 		ha->device_type |= DT_ZIO_SUPPORTED;
2683 		ha->device_type |= DT_FWI2;
2684 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2685 		/* Initialize 82XX ISP flags */
2686 		qla82xx_init_flags(ha);
2687 		break;
2688 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2689 		ha->isp_type |= DT_ISP2031;
2690 		ha->device_type |= DT_ZIO_SUPPORTED;
2691 		ha->device_type |= DT_FWI2;
2692 		ha->device_type |= DT_IIDMA;
2693 		ha->device_type |= DT_T10_PI;
2694 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2695 		break;
2696 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2697 		ha->isp_type |= DT_ISP8031;
2698 		ha->device_type |= DT_ZIO_SUPPORTED;
2699 		ha->device_type |= DT_FWI2;
2700 		ha->device_type |= DT_IIDMA;
2701 		ha->device_type |= DT_T10_PI;
2702 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2703 		break;
2704 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2705 		ha->isp_type |= DT_ISPFX00;
2706 		break;
2707 	case PCI_DEVICE_ID_QLOGIC_ISP2071:
2708 		ha->isp_type |= DT_ISP2071;
2709 		ha->device_type |= DT_ZIO_SUPPORTED;
2710 		ha->device_type |= DT_FWI2;
2711 		ha->device_type |= DT_IIDMA;
2712 		ha->device_type |= DT_T10_PI;
2713 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2714 		break;
2715 	case PCI_DEVICE_ID_QLOGIC_ISP2271:
2716 		ha->isp_type |= DT_ISP2271;
2717 		ha->device_type |= DT_ZIO_SUPPORTED;
2718 		ha->device_type |= DT_FWI2;
2719 		ha->device_type |= DT_IIDMA;
2720 		ha->device_type |= DT_T10_PI;
2721 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2722 		break;
2723 	case PCI_DEVICE_ID_QLOGIC_ISP2261:
2724 		ha->isp_type |= DT_ISP2261;
2725 		ha->device_type |= DT_ZIO_SUPPORTED;
2726 		ha->device_type |= DT_FWI2;
2727 		ha->device_type |= DT_IIDMA;
2728 		ha->device_type |= DT_T10_PI;
2729 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2730 		break;
2731 	case PCI_DEVICE_ID_QLOGIC_ISP2081:
2732 	case PCI_DEVICE_ID_QLOGIC_ISP2089:
2733 		ha->isp_type |= DT_ISP2081;
2734 		ha->device_type |= DT_ZIO_SUPPORTED;
2735 		ha->device_type |= DT_FWI2;
2736 		ha->device_type |= DT_IIDMA;
2737 		ha->device_type |= DT_T10_PI;
2738 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2739 		break;
2740 	case PCI_DEVICE_ID_QLOGIC_ISP2281:
2741 	case PCI_DEVICE_ID_QLOGIC_ISP2289:
2742 		ha->isp_type |= DT_ISP2281;
2743 		ha->device_type |= DT_ZIO_SUPPORTED;
2744 		ha->device_type |= DT_FWI2;
2745 		ha->device_type |= DT_IIDMA;
2746 		ha->device_type |= DT_T10_PI;
2747 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2748 		break;
2749 	}
2750 
2751 	if (IS_QLA82XX(ha))
2752 		ha->port_no = ha->portnum & 1;
2753 	else {
2754 		/* Get adapter physical port no from interrupt pin register. */
2755 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2756 		if (IS_QLA25XX(ha) || IS_QLA2031(ha) ||
2757 		    IS_QLA27XX(ha) || IS_QLA28XX(ha))
2758 			ha->port_no--;
2759 		else
2760 			ha->port_no = !(ha->port_no & 1);
2761 	}
2762 
2763 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2764 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2765 	    ha->device_type, ha->port_no, ha->fw_srisc_address);
2766 }
2767 
2768 static void
2769 qla2xxx_scan_start(struct Scsi_Host *shost)
2770 {
2771 	scsi_qla_host_t *vha = shost_priv(shost);
2772 
2773 	if (vha->hw->flags.running_gold_fw)
2774 		return;
2775 
2776 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2777 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2778 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2779 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2780 }
2781 
2782 static int
2783 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2784 {
2785 	scsi_qla_host_t *vha = shost_priv(shost);
2786 
2787 	if (test_bit(UNLOADING, &vha->dpc_flags))
2788 		return 1;
2789 	if (!vha->host)
2790 		return 1;
2791 	if (time > vha->hw->loop_reset_delay * HZ)
2792 		return 1;
2793 
2794 	return atomic_read(&vha->loop_state) == LOOP_READY;
2795 }
2796 
2797 static void qla2x00_iocb_work_fn(struct work_struct *work)
2798 {
2799 	struct scsi_qla_host *vha = container_of(work,
2800 		struct scsi_qla_host, iocb_work);
2801 	struct qla_hw_data *ha = vha->hw;
2802 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2803 	int i = 2;
2804 	unsigned long flags;
2805 
2806 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
2807 		return;
2808 
2809 	while (!list_empty(&vha->work_list) && i > 0) {
2810 		qla2x00_do_work(vha);
2811 		i--;
2812 	}
2813 
2814 	spin_lock_irqsave(&vha->work_lock, flags);
2815 	clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
2816 	spin_unlock_irqrestore(&vha->work_lock, flags);
2817 }
2818 
2819 /*
2820  * PCI driver interface
2821  */
2822 static int
2823 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2824 {
2825 	int	ret = -ENODEV;
2826 	struct Scsi_Host *host;
2827 	scsi_qla_host_t *base_vha = NULL;
2828 	struct qla_hw_data *ha;
2829 	char pci_info[30];
2830 	char fw_str[30], wq_name[30];
2831 	struct scsi_host_template *sht;
2832 	int bars, mem_only = 0;
2833 	uint16_t req_length = 0, rsp_length = 0;
2834 	struct req_que *req = NULL;
2835 	struct rsp_que *rsp = NULL;
2836 	int i;
2837 
2838 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2839 	sht = &qla2xxx_driver_template;
2840 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2841 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2842 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2843 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2844 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2845 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2846 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2847 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2848 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2849 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2850 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2851 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
2852 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
2853 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
2854 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261 ||
2855 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2081 ||
2856 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2281 ||
2857 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2089 ||
2858 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2289) {
2859 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2860 		mem_only = 1;
2861 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2862 		    "Mem only adapter.\n");
2863 	}
2864 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2865 	    "Bars=%d.\n", bars);
2866 
2867 	if (mem_only) {
2868 		if (pci_enable_device_mem(pdev))
2869 			return ret;
2870 	} else {
2871 		if (pci_enable_device(pdev))
2872 			return ret;
2873 	}
2874 
2875 	if (is_kdump_kernel()) {
2876 		ql2xmqsupport = 0;
2877 		ql2xallocfwdump = 0;
2878 	}
2879 
2880 	/* This may fail but that's ok */
2881 	pci_enable_pcie_error_reporting(pdev);
2882 
2883 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2884 	if (!ha) {
2885 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2886 		    "Unable to allocate memory for ha.\n");
2887 		goto disable_device;
2888 	}
2889 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2890 	    "Memory allocated for ha=%p.\n", ha);
2891 	ha->pdev = pdev;
2892 	INIT_LIST_HEAD(&ha->tgt.q_full_list);
2893 	spin_lock_init(&ha->tgt.q_full_lock);
2894 	spin_lock_init(&ha->tgt.sess_lock);
2895 	spin_lock_init(&ha->tgt.atio_lock);
2896 
2897 	spin_lock_init(&ha->sadb_lock);
2898 	INIT_LIST_HEAD(&ha->sadb_tx_index_list);
2899 	INIT_LIST_HEAD(&ha->sadb_rx_index_list);
2900 
2901 	spin_lock_init(&ha->sadb_fp_lock);
2902 
2903 	if (qla_edif_sadb_build_free_pool(ha)) {
2904 		kfree(ha);
2905 		goto  disable_device;
2906 	}
2907 
2908 	atomic_set(&ha->nvme_active_aen_cnt, 0);
2909 
2910 	/* Clear our data area */
2911 	ha->bars = bars;
2912 	ha->mem_only = mem_only;
2913 	spin_lock_init(&ha->hardware_lock);
2914 	spin_lock_init(&ha->vport_slock);
2915 	mutex_init(&ha->selflogin_lock);
2916 	mutex_init(&ha->optrom_mutex);
2917 
2918 	/* Set ISP-type information. */
2919 	qla2x00_set_isp_flags(ha);
2920 
2921 	/* Set EEH reset type to fundamental if required by hba */
2922 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2923 	    IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
2924 		pdev->needs_freset = 1;
2925 
2926 	ha->prev_topology = 0;
2927 	ha->init_cb_size = sizeof(init_cb_t);
2928 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
2929 	ha->optrom_size = OPTROM_SIZE_2300;
2930 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
2931 	atomic_set(&ha->num_pend_mbx_stage1, 0);
2932 	atomic_set(&ha->num_pend_mbx_stage2, 0);
2933 	atomic_set(&ha->num_pend_mbx_stage3, 0);
2934 	atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
2935 	ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
2936 
2937 	/* Assign ISP specific operations. */
2938 	if (IS_QLA2100(ha)) {
2939 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2940 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2941 		req_length = REQUEST_ENTRY_CNT_2100;
2942 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2943 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2944 		ha->gid_list_info_size = 4;
2945 		ha->flash_conf_off = ~0;
2946 		ha->flash_data_off = ~0;
2947 		ha->nvram_conf_off = ~0;
2948 		ha->nvram_data_off = ~0;
2949 		ha->isp_ops = &qla2100_isp_ops;
2950 	} else if (IS_QLA2200(ha)) {
2951 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2952 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2953 		req_length = REQUEST_ENTRY_CNT_2200;
2954 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2955 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2956 		ha->gid_list_info_size = 4;
2957 		ha->flash_conf_off = ~0;
2958 		ha->flash_data_off = ~0;
2959 		ha->nvram_conf_off = ~0;
2960 		ha->nvram_data_off = ~0;
2961 		ha->isp_ops = &qla2100_isp_ops;
2962 	} else if (IS_QLA23XX(ha)) {
2963 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2964 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2965 		req_length = REQUEST_ENTRY_CNT_2200;
2966 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2967 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2968 		ha->gid_list_info_size = 6;
2969 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
2970 			ha->optrom_size = OPTROM_SIZE_2322;
2971 		ha->flash_conf_off = ~0;
2972 		ha->flash_data_off = ~0;
2973 		ha->nvram_conf_off = ~0;
2974 		ha->nvram_data_off = ~0;
2975 		ha->isp_ops = &qla2300_isp_ops;
2976 	} else if (IS_QLA24XX_TYPE(ha)) {
2977 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2978 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2979 		req_length = REQUEST_ENTRY_CNT_24XX;
2980 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2981 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2982 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2983 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2984 		ha->gid_list_info_size = 8;
2985 		ha->optrom_size = OPTROM_SIZE_24XX;
2986 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2987 		ha->isp_ops = &qla24xx_isp_ops;
2988 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2989 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2990 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2991 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2992 	} else if (IS_QLA25XX(ha)) {
2993 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2994 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2995 		req_length = REQUEST_ENTRY_CNT_24XX;
2996 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2997 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2998 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2999 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3000 		ha->gid_list_info_size = 8;
3001 		ha->optrom_size = OPTROM_SIZE_25XX;
3002 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3003 		ha->isp_ops = &qla25xx_isp_ops;
3004 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3005 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3006 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3007 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3008 	} else if (IS_QLA81XX(ha)) {
3009 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3010 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3011 		req_length = REQUEST_ENTRY_CNT_24XX;
3012 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3013 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3014 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3015 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3016 		ha->gid_list_info_size = 8;
3017 		ha->optrom_size = OPTROM_SIZE_81XX;
3018 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3019 		ha->isp_ops = &qla81xx_isp_ops;
3020 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3021 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3022 		ha->nvram_conf_off = ~0;
3023 		ha->nvram_data_off = ~0;
3024 	} else if (IS_QLA82XX(ha)) {
3025 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3026 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3027 		req_length = REQUEST_ENTRY_CNT_82XX;
3028 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3029 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3030 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3031 		ha->gid_list_info_size = 8;
3032 		ha->optrom_size = OPTROM_SIZE_82XX;
3033 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3034 		ha->isp_ops = &qla82xx_isp_ops;
3035 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3036 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3037 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3038 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3039 	} else if (IS_QLA8044(ha)) {
3040 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3041 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3042 		req_length = REQUEST_ENTRY_CNT_82XX;
3043 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3044 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3045 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3046 		ha->gid_list_info_size = 8;
3047 		ha->optrom_size = OPTROM_SIZE_83XX;
3048 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3049 		ha->isp_ops = &qla8044_isp_ops;
3050 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3051 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3052 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3053 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3054 	} else if (IS_QLA83XX(ha)) {
3055 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3056 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3057 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3058 		req_length = REQUEST_ENTRY_CNT_83XX;
3059 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3060 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3061 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3062 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3063 		ha->gid_list_info_size = 8;
3064 		ha->optrom_size = OPTROM_SIZE_83XX;
3065 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3066 		ha->isp_ops = &qla83xx_isp_ops;
3067 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3068 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3069 		ha->nvram_conf_off = ~0;
3070 		ha->nvram_data_off = ~0;
3071 	}  else if (IS_QLAFX00(ha)) {
3072 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
3073 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
3074 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
3075 		req_length = REQUEST_ENTRY_CNT_FX00;
3076 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
3077 		ha->isp_ops = &qlafx00_isp_ops;
3078 		ha->port_down_retry_count = 30; /* default value */
3079 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
3080 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
3081 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
3082 		ha->mr.fw_hbt_en = 1;
3083 		ha->mr.host_info_resend = false;
3084 		ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
3085 	} else if (IS_QLA27XX(ha)) {
3086 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3087 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3088 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3089 		req_length = REQUEST_ENTRY_CNT_83XX;
3090 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3091 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3092 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3093 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3094 		ha->gid_list_info_size = 8;
3095 		ha->optrom_size = OPTROM_SIZE_83XX;
3096 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3097 		ha->isp_ops = &qla27xx_isp_ops;
3098 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3099 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3100 		ha->nvram_conf_off = ~0;
3101 		ha->nvram_data_off = ~0;
3102 	} else if (IS_QLA28XX(ha)) {
3103 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3104 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3105 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3106 		req_length = REQUEST_ENTRY_CNT_83XX;
3107 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3108 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3109 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3110 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3111 		ha->gid_list_info_size = 8;
3112 		ha->optrom_size = OPTROM_SIZE_28XX;
3113 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3114 		ha->isp_ops = &qla27xx_isp_ops;
3115 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_28XX;
3116 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_28XX;
3117 		ha->nvram_conf_off = ~0;
3118 		ha->nvram_data_off = ~0;
3119 	}
3120 
3121 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
3122 	    "mbx_count=%d, req_length=%d, "
3123 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
3124 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
3125 	    "max_fibre_devices=%d.\n",
3126 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
3127 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
3128 	    ha->nvram_npiv_size, ha->max_fibre_devices);
3129 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
3130 	    "isp_ops=%p, flash_conf_off=%d, "
3131 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
3132 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
3133 	    ha->nvram_conf_off, ha->nvram_data_off);
3134 
3135 	/* Configure PCI I/O space */
3136 	ret = ha->isp_ops->iospace_config(ha);
3137 	if (ret)
3138 		goto iospace_config_failed;
3139 
3140 	ql_log_pci(ql_log_info, pdev, 0x001d,
3141 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
3142 	    pdev->device, pdev->irq, ha->iobase);
3143 	mutex_init(&ha->vport_lock);
3144 	mutex_init(&ha->mq_lock);
3145 	init_completion(&ha->mbx_cmd_comp);
3146 	complete(&ha->mbx_cmd_comp);
3147 	init_completion(&ha->mbx_intr_comp);
3148 	init_completion(&ha->dcbx_comp);
3149 	init_completion(&ha->lb_portup_comp);
3150 
3151 	set_bit(0, (unsigned long *) ha->vp_idx_map);
3152 
3153 	qla2x00_config_dma_addressing(ha);
3154 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
3155 	    "64 Bit addressing is %s.\n",
3156 	    ha->flags.enable_64bit_addressing ? "enable" :
3157 	    "disable");
3158 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
3159 	if (ret) {
3160 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
3161 		    "Failed to allocate memory for adapter, aborting.\n");
3162 
3163 		goto probe_hw_failed;
3164 	}
3165 
3166 	req->max_q_depth = MAX_Q_DEPTH;
3167 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
3168 		req->max_q_depth = ql2xmaxqdepth;
3169 
3170 
3171 	base_vha = qla2x00_create_host(sht, ha);
3172 	if (!base_vha) {
3173 		ret = -ENOMEM;
3174 		goto probe_hw_failed;
3175 	}
3176 
3177 	pci_set_drvdata(pdev, base_vha);
3178 	set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3179 
3180 	host = base_vha->host;
3181 	base_vha->req = req;
3182 	if (IS_QLA2XXX_MIDTYPE(ha))
3183 		base_vha->mgmt_svr_loop_id =
3184 			qla2x00_reserve_mgmt_server_loop_id(base_vha);
3185 	else
3186 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
3187 						base_vha->vp_idx;
3188 
3189 	/* Setup fcport template structure. */
3190 	ha->mr.fcport.vha = base_vha;
3191 	ha->mr.fcport.port_type = FCT_UNKNOWN;
3192 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
3193 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
3194 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
3195 	ha->mr.fcport.scan_state = 1;
3196 
3197 	qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
3198 			    QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
3199 			    QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
3200 
3201 	/* Set the SG table size based on ISP type */
3202 	if (!IS_FWI2_CAPABLE(ha)) {
3203 		if (IS_QLA2100(ha))
3204 			host->sg_tablesize = 32;
3205 	} else {
3206 		if (!IS_QLA82XX(ha))
3207 			host->sg_tablesize = QLA_SG_ALL;
3208 	}
3209 	host->max_id = ha->max_fibre_devices;
3210 	host->cmd_per_lun = 3;
3211 	host->unique_id = host->host_no;
3212 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
3213 		host->max_cmd_len = 32;
3214 	else
3215 		host->max_cmd_len = MAX_CMDSZ;
3216 	host->max_channel = MAX_BUSES - 1;
3217 	/* Older HBAs support only 16-bit LUNs */
3218 	if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
3219 	    ql2xmaxlun > 0xffff)
3220 		host->max_lun = 0xffff;
3221 	else
3222 		host->max_lun = ql2xmaxlun;
3223 	host->transportt = qla2xxx_transport_template;
3224 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
3225 
3226 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
3227 	    "max_id=%d this_id=%d "
3228 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
3229 	    "max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
3230 	    host->this_id, host->cmd_per_lun, host->unique_id,
3231 	    host->max_cmd_len, host->max_channel, host->max_lun,
3232 	    host->transportt, sht->vendor_id);
3233 
3234 	INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn);
3235 
3236 	/* Set up the irqs */
3237 	ret = qla2x00_request_irqs(ha, rsp);
3238 	if (ret)
3239 		goto probe_failed;
3240 
3241 	/* Alloc arrays of request and response ring ptrs */
3242 	ret = qla2x00_alloc_queues(ha, req, rsp);
3243 	if (ret) {
3244 		ql_log(ql_log_fatal, base_vha, 0x003d,
3245 		    "Failed to allocate memory for queue pointers..."
3246 		    "aborting.\n");
3247 		ret = -ENODEV;
3248 		goto probe_failed;
3249 	}
3250 
3251 	if (ha->mqenable) {
3252 		/* number of hardware queues supported by blk/scsi-mq*/
3253 		host->nr_hw_queues = ha->max_qpairs;
3254 
3255 		ql_dbg(ql_dbg_init, base_vha, 0x0192,
3256 			"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
3257 	} else {
3258 		if (ql2xnvmeenable) {
3259 			host->nr_hw_queues = ha->max_qpairs;
3260 			ql_dbg(ql_dbg_init, base_vha, 0x0194,
3261 			    "FC-NVMe support is enabled, HW queues=%d\n",
3262 			    host->nr_hw_queues);
3263 		} else {
3264 			ql_dbg(ql_dbg_init, base_vha, 0x0193,
3265 			    "blk/scsi-mq disabled.\n");
3266 		}
3267 	}
3268 
3269 	qlt_probe_one_stage1(base_vha, ha);
3270 
3271 	pci_save_state(pdev);
3272 
3273 	/* Assign back pointers */
3274 	rsp->req = req;
3275 	req->rsp = rsp;
3276 
3277 	if (IS_QLAFX00(ha)) {
3278 		ha->rsp_q_map[0] = rsp;
3279 		ha->req_q_map[0] = req;
3280 		set_bit(0, ha->req_qid_map);
3281 		set_bit(0, ha->rsp_qid_map);
3282 	}
3283 
3284 	/* FWI2-capable only. */
3285 	req->req_q_in = &ha->iobase->isp24.req_q_in;
3286 	req->req_q_out = &ha->iobase->isp24.req_q_out;
3287 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
3288 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
3289 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3290 	    IS_QLA28XX(ha)) {
3291 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
3292 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
3293 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
3294 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
3295 	}
3296 
3297 	if (IS_QLAFX00(ha)) {
3298 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
3299 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
3300 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
3301 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
3302 	}
3303 
3304 	if (IS_P3P_TYPE(ha)) {
3305 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
3306 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
3307 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
3308 	}
3309 
3310 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
3311 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3312 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3313 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
3314 	    "req->req_q_in=%p req->req_q_out=%p "
3315 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3316 	    req->req_q_in, req->req_q_out,
3317 	    rsp->rsp_q_in, rsp->rsp_q_out);
3318 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
3319 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3320 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3321 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
3322 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3323 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
3324 
3325 	ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
3326 	if (unlikely(!ha->wq)) {
3327 		ret = -ENOMEM;
3328 		goto probe_failed;
3329 	}
3330 
3331 	if (ha->isp_ops->initialize_adapter(base_vha)) {
3332 		ql_log(ql_log_fatal, base_vha, 0x00d6,
3333 		    "Failed to initialize adapter - Adapter flags %x.\n",
3334 		    base_vha->device_flags);
3335 
3336 		if (IS_QLA82XX(ha)) {
3337 			qla82xx_idc_lock(ha);
3338 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3339 				QLA8XXX_DEV_FAILED);
3340 			qla82xx_idc_unlock(ha);
3341 			ql_log(ql_log_fatal, base_vha, 0x00d7,
3342 			    "HW State: FAILED.\n");
3343 		} else if (IS_QLA8044(ha)) {
3344 			qla8044_idc_lock(ha);
3345 			qla8044_wr_direct(base_vha,
3346 				QLA8044_CRB_DEV_STATE_INDEX,
3347 				QLA8XXX_DEV_FAILED);
3348 			qla8044_idc_unlock(ha);
3349 			ql_log(ql_log_fatal, base_vha, 0x0150,
3350 			    "HW State: FAILED.\n");
3351 		}
3352 
3353 		ret = -ENODEV;
3354 		goto probe_failed;
3355 	}
3356 
3357 	if (IS_QLAFX00(ha))
3358 		host->can_queue = QLAFX00_MAX_CANQUEUE;
3359 	else
3360 		host->can_queue = req->num_outstanding_cmds - 10;
3361 
3362 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
3363 	    "can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
3364 	    host->can_queue, base_vha->req,
3365 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
3366 
3367 	if (ha->mqenable) {
3368 		bool startit = false;
3369 
3370 		if (QLA_TGT_MODE_ENABLED())
3371 			startit = false;
3372 
3373 		if (ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED)
3374 			startit = true;
3375 
3376 		/* Create start of day qpairs for Block MQ */
3377 		for (i = 0; i < ha->max_qpairs; i++)
3378 			qla2xxx_create_qpair(base_vha, 5, 0, startit);
3379 	}
3380 	qla_init_iocb_limit(base_vha);
3381 
3382 	if (ha->flags.running_gold_fw)
3383 		goto skip_dpc;
3384 
3385 	/*
3386 	 * Startup the kernel thread for this host adapter
3387 	 */
3388 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
3389 	    "%s_dpc", base_vha->host_str);
3390 	if (IS_ERR(ha->dpc_thread)) {
3391 		ql_log(ql_log_fatal, base_vha, 0x00ed,
3392 		    "Failed to start DPC thread.\n");
3393 		ret = PTR_ERR(ha->dpc_thread);
3394 		ha->dpc_thread = NULL;
3395 		goto probe_failed;
3396 	}
3397 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
3398 	    "DPC thread started successfully.\n");
3399 
3400 	/*
3401 	 * If we're not coming up in initiator mode, we might sit for
3402 	 * a while without waking up the dpc thread, which leads to a
3403 	 * stuck process warning.  So just kick the dpc once here and
3404 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
3405 	 */
3406 	qla2xxx_wake_dpc(base_vha);
3407 
3408 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
3409 
3410 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
3411 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
3412 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
3413 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
3414 
3415 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
3416 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
3417 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
3418 		INIT_WORK(&ha->idc_state_handler,
3419 		    qla83xx_idc_state_handler_work);
3420 		INIT_WORK(&ha->nic_core_unrecoverable,
3421 		    qla83xx_nic_core_unrecoverable_work);
3422 	}
3423 
3424 skip_dpc:
3425 	list_add_tail(&base_vha->list, &ha->vp_list);
3426 	base_vha->host->irq = ha->pdev->irq;
3427 
3428 	/* Initialized the timer */
3429 	qla2x00_start_timer(base_vha, WATCH_INTERVAL);
3430 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
3431 	    "Started qla2x00_timer with "
3432 	    "interval=%d.\n", WATCH_INTERVAL);
3433 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
3434 	    "Detected hba at address=%p.\n",
3435 	    ha);
3436 
3437 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
3438 		if (ha->fw_attributes & BIT_4) {
3439 			int prot = 0, guard;
3440 
3441 			base_vha->flags.difdix_supported = 1;
3442 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
3443 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3444 			if (ql2xenabledif == 1)
3445 				prot = SHOST_DIX_TYPE0_PROTECTION;
3446 			if (ql2xprotmask)
3447 				scsi_host_set_prot(host, ql2xprotmask);
3448 			else
3449 				scsi_host_set_prot(host,
3450 				    prot | SHOST_DIF_TYPE1_PROTECTION
3451 				    | SHOST_DIF_TYPE2_PROTECTION
3452 				    | SHOST_DIF_TYPE3_PROTECTION
3453 				    | SHOST_DIX_TYPE1_PROTECTION
3454 				    | SHOST_DIX_TYPE2_PROTECTION
3455 				    | SHOST_DIX_TYPE3_PROTECTION);
3456 
3457 			guard = SHOST_DIX_GUARD_CRC;
3458 
3459 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
3460 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
3461 				guard |= SHOST_DIX_GUARD_IP;
3462 
3463 			if (ql2xprotguard)
3464 				scsi_host_set_guard(host, ql2xprotguard);
3465 			else
3466 				scsi_host_set_guard(host, guard);
3467 		} else
3468 			base_vha->flags.difdix_supported = 0;
3469 	}
3470 
3471 	ha->isp_ops->enable_intrs(ha);
3472 
3473 	if (IS_QLAFX00(ha)) {
3474 		ret = qlafx00_fx_disc(base_vha,
3475 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
3476 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
3477 		    QLA_SG_ALL : 128;
3478 	}
3479 
3480 	ret = scsi_add_host(host, &pdev->dev);
3481 	if (ret)
3482 		goto probe_failed;
3483 
3484 	base_vha->flags.init_done = 1;
3485 	base_vha->flags.online = 1;
3486 	ha->prev_minidump_failed = 0;
3487 
3488 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
3489 	    "Init done and hba is online.\n");
3490 
3491 	if (qla_ini_mode_enabled(base_vha) ||
3492 		qla_dual_mode_enabled(base_vha))
3493 		scsi_scan_host(host);
3494 	else
3495 		ql_dbg(ql_dbg_init, base_vha, 0x0122,
3496 			"skipping scsi_scan_host() for non-initiator port\n");
3497 
3498 	qla2x00_alloc_sysfs_attr(base_vha);
3499 
3500 	if (IS_QLAFX00(ha)) {
3501 		ret = qlafx00_fx_disc(base_vha,
3502 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
3503 
3504 		/* Register system information */
3505 		ret =  qlafx00_fx_disc(base_vha,
3506 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
3507 	}
3508 
3509 	qla2x00_init_host_attr(base_vha);
3510 
3511 	qla2x00_dfs_setup(base_vha);
3512 
3513 	ql_log(ql_log_info, base_vha, 0x00fb,
3514 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
3515 	ql_log(ql_log_info, base_vha, 0x00fc,
3516 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
3517 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info,
3518 						       sizeof(pci_info)),
3519 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
3520 	    base_vha->host_no,
3521 	    ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
3522 
3523 	qlt_add_target(ha, base_vha);
3524 
3525 	clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3526 
3527 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3528 		return -ENODEV;
3529 
3530 	return 0;
3531 
3532 probe_failed:
3533 	qla_enode_stop(base_vha);
3534 	qla_edb_stop(base_vha);
3535 	if (base_vha->gnl.l) {
3536 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3537 				base_vha->gnl.l, base_vha->gnl.ldma);
3538 		base_vha->gnl.l = NULL;
3539 	}
3540 
3541 	if (base_vha->timer_active)
3542 		qla2x00_stop_timer(base_vha);
3543 	base_vha->flags.online = 0;
3544 	if (ha->dpc_thread) {
3545 		struct task_struct *t = ha->dpc_thread;
3546 
3547 		ha->dpc_thread = NULL;
3548 		kthread_stop(t);
3549 	}
3550 
3551 	qla2x00_free_device(base_vha);
3552 	scsi_host_put(base_vha->host);
3553 	/*
3554 	 * Need to NULL out local req/rsp after
3555 	 * qla2x00_free_device => qla2x00_free_queues frees
3556 	 * what these are pointing to. Or else we'll
3557 	 * fall over below in qla2x00_free_req/rsp_que.
3558 	 */
3559 	req = NULL;
3560 	rsp = NULL;
3561 
3562 probe_hw_failed:
3563 	qla2x00_mem_free(ha);
3564 	qla2x00_free_req_que(ha, req);
3565 	qla2x00_free_rsp_que(ha, rsp);
3566 	qla2x00_clear_drv_active(ha);
3567 
3568 iospace_config_failed:
3569 	if (IS_P3P_TYPE(ha)) {
3570 		if (!ha->nx_pcibase)
3571 			iounmap((device_reg_t *)ha->nx_pcibase);
3572 		if (!ql2xdbwr)
3573 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3574 	} else {
3575 		if (ha->iobase)
3576 			iounmap(ha->iobase);
3577 		if (ha->cregbase)
3578 			iounmap(ha->cregbase);
3579 	}
3580 	pci_release_selected_regions(ha->pdev, ha->bars);
3581 	kfree(ha);
3582 
3583 disable_device:
3584 	pci_disable_device(pdev);
3585 	return ret;
3586 }
3587 
3588 static void __qla_set_remove_flag(scsi_qla_host_t *base_vha)
3589 {
3590 	scsi_qla_host_t *vp;
3591 	unsigned long flags;
3592 	struct qla_hw_data *ha;
3593 
3594 	if (!base_vha)
3595 		return;
3596 
3597 	ha = base_vha->hw;
3598 
3599 	spin_lock_irqsave(&ha->vport_slock, flags);
3600 	list_for_each_entry(vp, &ha->vp_list, list)
3601 		set_bit(PFLG_DRIVER_REMOVING, &vp->pci_flags);
3602 
3603 	/*
3604 	 * Indicate device removal to prevent future board_disable
3605 	 * and wait until any pending board_disable has completed.
3606 	 */
3607 	set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
3608 	spin_unlock_irqrestore(&ha->vport_slock, flags);
3609 }
3610 
3611 static void
3612 qla2x00_shutdown(struct pci_dev *pdev)
3613 {
3614 	scsi_qla_host_t *vha;
3615 	struct qla_hw_data  *ha;
3616 
3617 	vha = pci_get_drvdata(pdev);
3618 	ha = vha->hw;
3619 
3620 	ql_log(ql_log_info, vha, 0xfffa,
3621 		"Adapter shutdown\n");
3622 
3623 	/*
3624 	 * Prevent future board_disable and wait
3625 	 * until any pending board_disable has completed.
3626 	 */
3627 	__qla_set_remove_flag(vha);
3628 	cancel_work_sync(&ha->board_disable);
3629 
3630 	if (!atomic_read(&pdev->enable_cnt))
3631 		return;
3632 
3633 	/* Notify ISPFX00 firmware */
3634 	if (IS_QLAFX00(ha))
3635 		qlafx00_driver_shutdown(vha, 20);
3636 
3637 	/* Turn-off FCE trace */
3638 	if (ha->flags.fce_enabled) {
3639 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3640 		ha->flags.fce_enabled = 0;
3641 	}
3642 
3643 	/* Turn-off EFT trace */
3644 	if (ha->eft)
3645 		qla2x00_disable_eft_trace(vha);
3646 
3647 	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3648 	    IS_QLA28XX(ha)) {
3649 		if (ha->flags.fw_started)
3650 			qla2x00_abort_isp_cleanup(vha);
3651 	} else {
3652 		/* Stop currently executing firmware. */
3653 		qla2x00_try_to_stop_firmware(vha);
3654 	}
3655 
3656 	/* Disable timer */
3657 	if (vha->timer_active)
3658 		qla2x00_stop_timer(vha);
3659 
3660 	/* Turn adapter off line */
3661 	vha->flags.online = 0;
3662 
3663 	/* turn-off interrupts on the card */
3664 	if (ha->interrupts_on) {
3665 		vha->flags.init_done = 0;
3666 		ha->isp_ops->disable_intrs(ha);
3667 	}
3668 
3669 	qla2x00_free_irqs(vha);
3670 
3671 	qla2x00_free_fw_dump(ha);
3672 
3673 	pci_disable_device(pdev);
3674 	ql_log(ql_log_info, vha, 0xfffe,
3675 		"Adapter shutdown successfully.\n");
3676 }
3677 
3678 /* Deletes all the virtual ports for a given ha */
3679 static void
3680 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
3681 {
3682 	scsi_qla_host_t *vha;
3683 	unsigned long flags;
3684 
3685 	mutex_lock(&ha->vport_lock);
3686 	while (ha->cur_vport_count) {
3687 		spin_lock_irqsave(&ha->vport_slock, flags);
3688 
3689 		BUG_ON(base_vha->list.next == &ha->vp_list);
3690 		/* This assumes first entry in ha->vp_list is always base vha */
3691 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3692 		scsi_host_get(vha->host);
3693 
3694 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3695 		mutex_unlock(&ha->vport_lock);
3696 
3697 		qla_nvme_delete(vha);
3698 
3699 		fc_vport_terminate(vha->fc_vport);
3700 		scsi_host_put(vha->host);
3701 
3702 		mutex_lock(&ha->vport_lock);
3703 	}
3704 	mutex_unlock(&ha->vport_lock);
3705 }
3706 
3707 /* Stops all deferred work threads */
3708 static void
3709 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
3710 {
3711 	/* Cancel all work and destroy DPC workqueues */
3712 	if (ha->dpc_lp_wq) {
3713 		cancel_work_sync(&ha->idc_aen);
3714 		destroy_workqueue(ha->dpc_lp_wq);
3715 		ha->dpc_lp_wq = NULL;
3716 	}
3717 
3718 	if (ha->dpc_hp_wq) {
3719 		cancel_work_sync(&ha->nic_core_reset);
3720 		cancel_work_sync(&ha->idc_state_handler);
3721 		cancel_work_sync(&ha->nic_core_unrecoverable);
3722 		destroy_workqueue(ha->dpc_hp_wq);
3723 		ha->dpc_hp_wq = NULL;
3724 	}
3725 
3726 	/* Kill the kernel thread for this host */
3727 	if (ha->dpc_thread) {
3728 		struct task_struct *t = ha->dpc_thread;
3729 
3730 		/*
3731 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3732 		 * so we need to zero it out.
3733 		 */
3734 		ha->dpc_thread = NULL;
3735 		kthread_stop(t);
3736 	}
3737 }
3738 
3739 static void
3740 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3741 {
3742 	if (IS_QLA82XX(ha)) {
3743 
3744 		iounmap((device_reg_t *)ha->nx_pcibase);
3745 		if (!ql2xdbwr)
3746 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3747 	} else {
3748 		if (ha->iobase)
3749 			iounmap(ha->iobase);
3750 
3751 		if (ha->cregbase)
3752 			iounmap(ha->cregbase);
3753 
3754 		if (ha->mqiobase)
3755 			iounmap(ha->mqiobase);
3756 
3757 		if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
3758 		    ha->msixbase)
3759 			iounmap(ha->msixbase);
3760 	}
3761 }
3762 
3763 static void
3764 qla2x00_clear_drv_active(struct qla_hw_data *ha)
3765 {
3766 	if (IS_QLA8044(ha)) {
3767 		qla8044_idc_lock(ha);
3768 		qla8044_clear_drv_active(ha);
3769 		qla8044_idc_unlock(ha);
3770 	} else if (IS_QLA82XX(ha)) {
3771 		qla82xx_idc_lock(ha);
3772 		qla82xx_clear_drv_active(ha);
3773 		qla82xx_idc_unlock(ha);
3774 	}
3775 }
3776 
3777 static void
3778 qla2x00_remove_one(struct pci_dev *pdev)
3779 {
3780 	scsi_qla_host_t *base_vha;
3781 	struct qla_hw_data  *ha;
3782 
3783 	base_vha = pci_get_drvdata(pdev);
3784 	ha = base_vha->hw;
3785 	ql_log(ql_log_info, base_vha, 0xb079,
3786 	    "Removing driver\n");
3787 	__qla_set_remove_flag(base_vha);
3788 	cancel_work_sync(&ha->board_disable);
3789 
3790 	/*
3791 	 * If the PCI device is disabled then there was a PCI-disconnect and
3792 	 * qla2x00_disable_board_on_pci_error has taken care of most of the
3793 	 * resources.
3794 	 */
3795 	if (!atomic_read(&pdev->enable_cnt)) {
3796 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3797 		    base_vha->gnl.l, base_vha->gnl.ldma);
3798 		base_vha->gnl.l = NULL;
3799 		scsi_host_put(base_vha->host);
3800 		kfree(ha);
3801 		pci_set_drvdata(pdev, NULL);
3802 		return;
3803 	}
3804 	qla2x00_wait_for_hba_ready(base_vha);
3805 
3806 	/*
3807 	 * if UNLOADING flag is already set, then continue unload,
3808 	 * where it was set first.
3809 	 */
3810 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
3811 		return;
3812 
3813 	if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3814 	    IS_QLA28XX(ha)) {
3815 		if (ha->flags.fw_started)
3816 			qla2x00_abort_isp_cleanup(base_vha);
3817 	} else if (!IS_QLAFX00(ha)) {
3818 		if (IS_QLA8031(ha)) {
3819 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3820 			    "Clearing fcoe driver presence.\n");
3821 			if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3822 				ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3823 				    "Error while clearing DRV-Presence.\n");
3824 		}
3825 
3826 		qla2x00_try_to_stop_firmware(base_vha);
3827 	}
3828 
3829 	qla2x00_wait_for_sess_deletion(base_vha);
3830 
3831 	qla_nvme_delete(base_vha);
3832 
3833 	dma_free_coherent(&ha->pdev->dev,
3834 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
3835 
3836 	base_vha->gnl.l = NULL;
3837 	qla_enode_stop(base_vha);
3838 	qla_edb_stop(base_vha);
3839 
3840 	vfree(base_vha->scan.l);
3841 
3842 	if (IS_QLAFX00(ha))
3843 		qlafx00_driver_shutdown(base_vha, 20);
3844 
3845 	qla2x00_delete_all_vps(ha, base_vha);
3846 
3847 	qla2x00_dfs_remove(base_vha);
3848 
3849 	qla84xx_put_chip(base_vha);
3850 
3851 	/* Disable timer */
3852 	if (base_vha->timer_active)
3853 		qla2x00_stop_timer(base_vha);
3854 
3855 	base_vha->flags.online = 0;
3856 
3857 	/* free DMA memory */
3858 	if (ha->exlogin_buf)
3859 		qla2x00_free_exlogin_buffer(ha);
3860 
3861 	/* free DMA memory */
3862 	if (ha->exchoffld_buf)
3863 		qla2x00_free_exchoffld_buffer(ha);
3864 
3865 	qla2x00_destroy_deferred_work(ha);
3866 
3867 	qlt_remove_target(ha, base_vha);
3868 
3869 	qla2x00_free_sysfs_attr(base_vha, true);
3870 
3871 	fc_remove_host(base_vha->host);
3872 
3873 	scsi_remove_host(base_vha->host);
3874 
3875 	qla2x00_free_device(base_vha);
3876 
3877 	qla2x00_clear_drv_active(ha);
3878 
3879 	scsi_host_put(base_vha->host);
3880 
3881 	qla2x00_unmap_iobases(ha);
3882 
3883 	pci_release_selected_regions(ha->pdev, ha->bars);
3884 	kfree(ha);
3885 
3886 	pci_disable_pcie_error_reporting(pdev);
3887 
3888 	pci_disable_device(pdev);
3889 }
3890 
3891 static inline void
3892 qla24xx_free_purex_list(struct purex_list *list)
3893 {
3894 	struct list_head *item, *next;
3895 	ulong flags;
3896 
3897 	spin_lock_irqsave(&list->lock, flags);
3898 	list_for_each_safe(item, next, &list->head) {
3899 		list_del(item);
3900 		kfree(list_entry(item, struct purex_item, list));
3901 	}
3902 	spin_unlock_irqrestore(&list->lock, flags);
3903 }
3904 
3905 static void
3906 qla2x00_free_device(scsi_qla_host_t *vha)
3907 {
3908 	struct qla_hw_data *ha = vha->hw;
3909 
3910 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3911 
3912 	/* Disable timer */
3913 	if (vha->timer_active)
3914 		qla2x00_stop_timer(vha);
3915 
3916 	qla25xx_delete_queues(vha);
3917 	vha->flags.online = 0;
3918 
3919 	/* turn-off interrupts on the card */
3920 	if (ha->interrupts_on) {
3921 		vha->flags.init_done = 0;
3922 		ha->isp_ops->disable_intrs(ha);
3923 	}
3924 
3925 	qla2x00_free_fcports(vha);
3926 
3927 	qla2x00_free_irqs(vha);
3928 
3929 	/* Flush the work queue and remove it */
3930 	if (ha->wq) {
3931 		flush_workqueue(ha->wq);
3932 		destroy_workqueue(ha->wq);
3933 		ha->wq = NULL;
3934 	}
3935 
3936 
3937 	qla24xx_free_purex_list(&vha->purex_list);
3938 
3939 	qla2x00_mem_free(ha);
3940 
3941 	qla82xx_md_free(vha);
3942 
3943 	qla_edif_sadb_release_free_pool(ha);
3944 	qla_edif_sadb_release(ha);
3945 
3946 	qla2x00_free_queues(ha);
3947 }
3948 
3949 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3950 {
3951 	fc_port_t *fcport, *tfcport;
3952 
3953 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list)
3954 		qla2x00_free_fcport(fcport);
3955 }
3956 
3957 static inline void
3958 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport)
3959 {
3960 	int now;
3961 
3962 	if (!fcport->rport)
3963 		return;
3964 
3965 	if (fcport->rport) {
3966 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2109,
3967 		    "%s %8phN. rport %p roles %x\n",
3968 		    __func__, fcport->port_name, fcport->rport,
3969 		    fcport->rport->roles);
3970 		fc_remote_port_delete(fcport->rport);
3971 	}
3972 	qlt_do_generation_tick(vha, &now);
3973 }
3974 
3975 /*
3976  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
3977  *
3978  * Input: ha = adapter block pointer.  fcport = port structure pointer.
3979  *
3980  * Return: None.
3981  *
3982  * Context:
3983  */
3984 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
3985     int do_login)
3986 {
3987 	if (IS_QLAFX00(vha->hw)) {
3988 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3989 		qla2x00_schedule_rport_del(vha, fcport);
3990 		return;
3991 	}
3992 
3993 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
3994 	    vha->vp_idx == fcport->vha->vp_idx) {
3995 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3996 		qla2x00_schedule_rport_del(vha, fcport);
3997 	}
3998 
3999 	/*
4000 	 * We may need to retry the login, so don't change the state of the
4001 	 * port but do the retries.
4002 	 */
4003 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
4004 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4005 
4006 	if (!do_login)
4007 		return;
4008 
4009 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4010 }
4011 
4012 void
4013 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha)
4014 {
4015 	fc_port_t *fcport;
4016 
4017 	ql_dbg(ql_dbg_disc, vha, 0x20f1,
4018 	    "Mark all dev lost\n");
4019 
4020 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4021 		if (fcport->loop_id != FC_NO_LOOP_ID &&
4022 		    (fcport->flags & FCF_FCP2_DEVICE) &&
4023 		    fcport->port_type == FCT_TARGET &&
4024 		    !qla2x00_reset_active(vha)) {
4025 			ql_dbg(ql_dbg_disc, vha, 0x211a,
4026 			       "Delaying session delete for FCP2 flags 0x%x port_type = 0x%x port_id=%06x %phC",
4027 			       fcport->flags, fcport->port_type,
4028 			       fcport->d_id.b24, fcport->port_name);
4029 			continue;
4030 		}
4031 		fcport->scan_state = 0;
4032 		qlt_schedule_sess_for_deletion(fcport);
4033 	}
4034 }
4035 
4036 static void qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
4037 {
4038 	int i;
4039 
4040 	if (IS_FWI2_CAPABLE(ha))
4041 		return;
4042 
4043 	for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
4044 		set_bit(i, ha->loop_id_map);
4045 	set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
4046 	set_bit(BROADCAST, ha->loop_id_map);
4047 }
4048 
4049 /*
4050 * qla2x00_mem_alloc
4051 *      Allocates adapter memory.
4052 *
4053 * Returns:
4054 *      0  = success.
4055 *      !0  = failure.
4056 */
4057 static int
4058 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
4059 	struct req_que **req, struct rsp_que **rsp)
4060 {
4061 	char	name[16];
4062 	int rc;
4063 
4064 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
4065 		&ha->init_cb_dma, GFP_KERNEL);
4066 	if (!ha->init_cb)
4067 		goto fail;
4068 
4069 	rc = btree_init32(&ha->host_map);
4070 	if (rc)
4071 		goto fail_free_init_cb;
4072 
4073 	if (qlt_mem_alloc(ha) < 0)
4074 		goto fail_free_btree;
4075 
4076 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
4077 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
4078 	if (!ha->gid_list)
4079 		goto fail_free_tgt_mem;
4080 
4081 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
4082 	if (!ha->srb_mempool)
4083 		goto fail_free_gid_list;
4084 
4085 	if (IS_P3P_TYPE(ha) || IS_QLA27XX(ha) || (ql2xsecenable && IS_QLA28XX(ha))) {
4086 		/* Allocate cache for CT6 Ctx. */
4087 		if (!ctx_cachep) {
4088 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
4089 				sizeof(struct ct6_dsd), 0,
4090 				SLAB_HWCACHE_ALIGN, NULL);
4091 			if (!ctx_cachep)
4092 				goto fail_free_srb_mempool;
4093 		}
4094 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
4095 			ctx_cachep);
4096 		if (!ha->ctx_mempool)
4097 			goto fail_free_srb_mempool;
4098 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
4099 		    "ctx_cachep=%p ctx_mempool=%p.\n",
4100 		    ctx_cachep, ha->ctx_mempool);
4101 	}
4102 
4103 	/* Get memory for cached NVRAM */
4104 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
4105 	if (!ha->nvram)
4106 		goto fail_free_ctx_mempool;
4107 
4108 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
4109 		ha->pdev->device);
4110 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4111 		DMA_POOL_SIZE, 8, 0);
4112 	if (!ha->s_dma_pool)
4113 		goto fail_free_nvram;
4114 
4115 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
4116 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
4117 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
4118 
4119 	if (IS_P3P_TYPE(ha) || ql2xenabledif || (IS_QLA28XX(ha) && ql2xsecenable)) {
4120 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4121 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
4122 		if (!ha->dl_dma_pool) {
4123 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
4124 			    "Failed to allocate memory for dl_dma_pool.\n");
4125 			goto fail_s_dma_pool;
4126 		}
4127 
4128 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4129 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
4130 		if (!ha->fcp_cmnd_dma_pool) {
4131 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
4132 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
4133 			goto fail_dl_dma_pool;
4134 		}
4135 
4136 		if (ql2xenabledif) {
4137 			u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
4138 			struct dsd_dma *dsd, *nxt;
4139 			uint i;
4140 			/* Creata a DMA pool of buffers for DIF bundling */
4141 			ha->dif_bundl_pool = dma_pool_create(name,
4142 			    &ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
4143 			if (!ha->dif_bundl_pool) {
4144 				ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4145 				    "%s: failed create dif_bundl_pool\n",
4146 				    __func__);
4147 				goto fail_dif_bundl_dma_pool;
4148 			}
4149 
4150 			INIT_LIST_HEAD(&ha->pool.good.head);
4151 			INIT_LIST_HEAD(&ha->pool.unusable.head);
4152 			ha->pool.good.count = 0;
4153 			ha->pool.unusable.count = 0;
4154 			for (i = 0; i < 128; i++) {
4155 				dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
4156 				if (!dsd) {
4157 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4158 					    0xe0ee, "%s: failed alloc dsd\n",
4159 					    __func__);
4160 					return 1;
4161 				}
4162 				ha->dif_bundle_kallocs++;
4163 
4164 				dsd->dsd_addr = dma_pool_alloc(
4165 				    ha->dif_bundl_pool, GFP_ATOMIC,
4166 				    &dsd->dsd_list_dma);
4167 				if (!dsd->dsd_addr) {
4168 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4169 					    0xe0ee,
4170 					    "%s: failed alloc ->dsd_addr\n",
4171 					    __func__);
4172 					kfree(dsd);
4173 					ha->dif_bundle_kallocs--;
4174 					continue;
4175 				}
4176 				ha->dif_bundle_dma_allocs++;
4177 
4178 				/*
4179 				 * if DMA buffer crosses 4G boundary,
4180 				 * put it on bad list
4181 				 */
4182 				if (MSD(dsd->dsd_list_dma) ^
4183 				    MSD(dsd->dsd_list_dma + bufsize)) {
4184 					list_add_tail(&dsd->list,
4185 					    &ha->pool.unusable.head);
4186 					ha->pool.unusable.count++;
4187 				} else {
4188 					list_add_tail(&dsd->list,
4189 					    &ha->pool.good.head);
4190 					ha->pool.good.count++;
4191 				}
4192 			}
4193 
4194 			/* return the good ones back to the pool */
4195 			list_for_each_entry_safe(dsd, nxt,
4196 			    &ha->pool.good.head, list) {
4197 				list_del(&dsd->list);
4198 				dma_pool_free(ha->dif_bundl_pool,
4199 				    dsd->dsd_addr, dsd->dsd_list_dma);
4200 				ha->dif_bundle_dma_allocs--;
4201 				kfree(dsd);
4202 				ha->dif_bundle_kallocs--;
4203 			}
4204 
4205 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4206 			    "%s: dif dma pool (good=%u unusable=%u)\n",
4207 			    __func__, ha->pool.good.count,
4208 			    ha->pool.unusable.count);
4209 		}
4210 
4211 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
4212 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
4213 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
4214 		    ha->dif_bundl_pool);
4215 	}
4216 
4217 	/* Allocate memory for SNS commands */
4218 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4219 	/* Get consistent memory allocated for SNS commands */
4220 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
4221 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
4222 		if (!ha->sns_cmd)
4223 			goto fail_dma_pool;
4224 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
4225 		    "sns_cmd: %p.\n", ha->sns_cmd);
4226 	} else {
4227 	/* Get consistent memory allocated for MS IOCB */
4228 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4229 			&ha->ms_iocb_dma);
4230 		if (!ha->ms_iocb)
4231 			goto fail_dma_pool;
4232 	/* Get consistent memory allocated for CT SNS commands */
4233 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
4234 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
4235 		if (!ha->ct_sns)
4236 			goto fail_free_ms_iocb;
4237 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
4238 		    "ms_iocb=%p ct_sns=%p.\n",
4239 		    ha->ms_iocb, ha->ct_sns);
4240 	}
4241 
4242 	/* Allocate memory for request ring */
4243 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
4244 	if (!*req) {
4245 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
4246 		    "Failed to allocate memory for req.\n");
4247 		goto fail_req;
4248 	}
4249 	(*req)->length = req_len;
4250 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
4251 		((*req)->length + 1) * sizeof(request_t),
4252 		&(*req)->dma, GFP_KERNEL);
4253 	if (!(*req)->ring) {
4254 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
4255 		    "Failed to allocate memory for req_ring.\n");
4256 		goto fail_req_ring;
4257 	}
4258 	/* Allocate memory for response ring */
4259 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
4260 	if (!*rsp) {
4261 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
4262 		    "Failed to allocate memory for rsp.\n");
4263 		goto fail_rsp;
4264 	}
4265 	(*rsp)->hw = ha;
4266 	(*rsp)->length = rsp_len;
4267 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
4268 		((*rsp)->length + 1) * sizeof(response_t),
4269 		&(*rsp)->dma, GFP_KERNEL);
4270 	if (!(*rsp)->ring) {
4271 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
4272 		    "Failed to allocate memory for rsp_ring.\n");
4273 		goto fail_rsp_ring;
4274 	}
4275 	(*req)->rsp = *rsp;
4276 	(*rsp)->req = *req;
4277 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
4278 	    "req=%p req->length=%d req->ring=%p rsp=%p "
4279 	    "rsp->length=%d rsp->ring=%p.\n",
4280 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
4281 	    (*rsp)->ring);
4282 	/* Allocate memory for NVRAM data for vports */
4283 	if (ha->nvram_npiv_size) {
4284 		ha->npiv_info = kcalloc(ha->nvram_npiv_size,
4285 					sizeof(struct qla_npiv_entry),
4286 					GFP_KERNEL);
4287 		if (!ha->npiv_info) {
4288 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
4289 			    "Failed to allocate memory for npiv_info.\n");
4290 			goto fail_npiv_info;
4291 		}
4292 	} else
4293 		ha->npiv_info = NULL;
4294 
4295 	/* Get consistent memory allocated for EX-INIT-CB. */
4296 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
4297 	    IS_QLA28XX(ha)) {
4298 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4299 		    &ha->ex_init_cb_dma);
4300 		if (!ha->ex_init_cb)
4301 			goto fail_ex_init_cb;
4302 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
4303 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
4304 	}
4305 
4306 	/* Get consistent memory allocated for Special Features-CB. */
4307 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4308 		ha->sf_init_cb = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL,
4309 						&ha->sf_init_cb_dma);
4310 		if (!ha->sf_init_cb)
4311 			goto fail_sf_init_cb;
4312 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199,
4313 			   "sf_init_cb=%p.\n", ha->sf_init_cb);
4314 	}
4315 
4316 	INIT_LIST_HEAD(&ha->gbl_dsd_list);
4317 
4318 	/* Get consistent memory allocated for Async Port-Database. */
4319 	if (!IS_FWI2_CAPABLE(ha)) {
4320 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4321 			&ha->async_pd_dma);
4322 		if (!ha->async_pd)
4323 			goto fail_async_pd;
4324 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
4325 		    "async_pd=%p.\n", ha->async_pd);
4326 	}
4327 
4328 	INIT_LIST_HEAD(&ha->vp_list);
4329 
4330 	/* Allocate memory for our loop_id bitmap */
4331 	ha->loop_id_map = kcalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE),
4332 				  sizeof(long),
4333 				  GFP_KERNEL);
4334 	if (!ha->loop_id_map)
4335 		goto fail_loop_id_map;
4336 	else {
4337 		qla2x00_set_reserved_loop_ids(ha);
4338 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
4339 		    "loop_id_map=%p.\n", ha->loop_id_map);
4340 	}
4341 
4342 	ha->sfp_data = dma_alloc_coherent(&ha->pdev->dev,
4343 	    SFP_DEV_SIZE, &ha->sfp_data_dma, GFP_KERNEL);
4344 	if (!ha->sfp_data) {
4345 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4346 		    "Unable to allocate memory for SFP read-data.\n");
4347 		goto fail_sfp_data;
4348 	}
4349 
4350 	ha->flt = dma_alloc_coherent(&ha->pdev->dev,
4351 	    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, &ha->flt_dma,
4352 	    GFP_KERNEL);
4353 	if (!ha->flt) {
4354 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4355 		    "Unable to allocate memory for FLT.\n");
4356 		goto fail_flt_buffer;
4357 	}
4358 
4359 	/* allocate the purex dma pool */
4360 	ha->purex_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4361 	    MAX_PAYLOAD, 8, 0);
4362 
4363 	if (!ha->purex_dma_pool) {
4364 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4365 		    "Unable to allocate purex_dma_pool.\n");
4366 		goto fail_flt;
4367 	}
4368 
4369 	ha->elsrej.size = sizeof(struct fc_els_ls_rjt) + 16;
4370 	ha->elsrej.c = dma_alloc_coherent(&ha->pdev->dev,
4371 	    ha->elsrej.size, &ha->elsrej.cdma, GFP_KERNEL);
4372 
4373 	if (!ha->elsrej.c) {
4374 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
4375 		    "Alloc failed for els reject cmd.\n");
4376 		goto fail_elsrej;
4377 	}
4378 	ha->elsrej.c->er_cmd = ELS_LS_RJT;
4379 	ha->elsrej.c->er_reason = ELS_RJT_LOGIC;
4380 	ha->elsrej.c->er_explan = ELS_EXPL_UNAB_DATA;
4381 	return 0;
4382 
4383 fail_elsrej:
4384 	dma_pool_destroy(ha->purex_dma_pool);
4385 fail_flt:
4386 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4387 	    ha->flt, ha->flt_dma);
4388 
4389 fail_flt_buffer:
4390 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4391 	    ha->sfp_data, ha->sfp_data_dma);
4392 fail_sfp_data:
4393 	kfree(ha->loop_id_map);
4394 fail_loop_id_map:
4395 	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4396 fail_async_pd:
4397 	dma_pool_free(ha->s_dma_pool, ha->sf_init_cb, ha->sf_init_cb_dma);
4398 fail_sf_init_cb:
4399 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
4400 fail_ex_init_cb:
4401 	kfree(ha->npiv_info);
4402 fail_npiv_info:
4403 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
4404 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
4405 	(*rsp)->ring = NULL;
4406 	(*rsp)->dma = 0;
4407 fail_rsp_ring:
4408 	kfree(*rsp);
4409 	*rsp = NULL;
4410 fail_rsp:
4411 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
4412 		sizeof(request_t), (*req)->ring, (*req)->dma);
4413 	(*req)->ring = NULL;
4414 	(*req)->dma = 0;
4415 fail_req_ring:
4416 	kfree(*req);
4417 	*req = NULL;
4418 fail_req:
4419 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4420 		ha->ct_sns, ha->ct_sns_dma);
4421 	ha->ct_sns = NULL;
4422 	ha->ct_sns_dma = 0;
4423 fail_free_ms_iocb:
4424 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4425 	ha->ms_iocb = NULL;
4426 	ha->ms_iocb_dma = 0;
4427 
4428 	if (ha->sns_cmd)
4429 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4430 		    ha->sns_cmd, ha->sns_cmd_dma);
4431 fail_dma_pool:
4432 	if (ql2xenabledif) {
4433 		struct dsd_dma *dsd, *nxt;
4434 
4435 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4436 		    list) {
4437 			list_del(&dsd->list);
4438 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4439 			    dsd->dsd_list_dma);
4440 			ha->dif_bundle_dma_allocs--;
4441 			kfree(dsd);
4442 			ha->dif_bundle_kallocs--;
4443 			ha->pool.unusable.count--;
4444 		}
4445 		dma_pool_destroy(ha->dif_bundl_pool);
4446 		ha->dif_bundl_pool = NULL;
4447 	}
4448 
4449 fail_dif_bundl_dma_pool:
4450 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4451 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4452 		ha->fcp_cmnd_dma_pool = NULL;
4453 	}
4454 fail_dl_dma_pool:
4455 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4456 		dma_pool_destroy(ha->dl_dma_pool);
4457 		ha->dl_dma_pool = NULL;
4458 	}
4459 fail_s_dma_pool:
4460 	dma_pool_destroy(ha->s_dma_pool);
4461 	ha->s_dma_pool = NULL;
4462 fail_free_nvram:
4463 	kfree(ha->nvram);
4464 	ha->nvram = NULL;
4465 fail_free_ctx_mempool:
4466 	mempool_destroy(ha->ctx_mempool);
4467 	ha->ctx_mempool = NULL;
4468 fail_free_srb_mempool:
4469 	mempool_destroy(ha->srb_mempool);
4470 	ha->srb_mempool = NULL;
4471 fail_free_gid_list:
4472 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4473 	ha->gid_list,
4474 	ha->gid_list_dma);
4475 	ha->gid_list = NULL;
4476 	ha->gid_list_dma = 0;
4477 fail_free_tgt_mem:
4478 	qlt_mem_free(ha);
4479 fail_free_btree:
4480 	btree_destroy32(&ha->host_map);
4481 fail_free_init_cb:
4482 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
4483 	ha->init_cb_dma);
4484 	ha->init_cb = NULL;
4485 	ha->init_cb_dma = 0;
4486 fail:
4487 	ql_log(ql_log_fatal, NULL, 0x0030,
4488 	    "Memory allocation failure.\n");
4489 	return -ENOMEM;
4490 }
4491 
4492 int
4493 qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
4494 {
4495 	int rval;
4496 	uint16_t	size, max_cnt;
4497 	uint32_t temp;
4498 	struct qla_hw_data *ha = vha->hw;
4499 
4500 	/* Return if we don't need to alloacate any extended logins */
4501 	if (ql2xexlogins <= MAX_FIBRE_DEVICES_2400)
4502 		return QLA_SUCCESS;
4503 
4504 	if (!IS_EXLOGIN_OFFLD_CAPABLE(ha))
4505 		return QLA_SUCCESS;
4506 
4507 	ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
4508 	max_cnt = 0;
4509 	rval = qla_get_exlogin_status(vha, &size, &max_cnt);
4510 	if (rval != QLA_SUCCESS) {
4511 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
4512 		    "Failed to get exlogin status.\n");
4513 		return rval;
4514 	}
4515 
4516 	temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
4517 	temp *= size;
4518 
4519 	if (temp != ha->exlogin_size) {
4520 		qla2x00_free_exlogin_buffer(ha);
4521 		ha->exlogin_size = temp;
4522 
4523 		ql_log(ql_log_info, vha, 0xd024,
4524 		    "EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
4525 		    max_cnt, size, temp);
4526 
4527 		ql_log(ql_log_info, vha, 0xd025,
4528 		    "EXLOGIN: requested size=0x%x\n", ha->exlogin_size);
4529 
4530 		/* Get consistent memory for extended logins */
4531 		ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
4532 			ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
4533 		if (!ha->exlogin_buf) {
4534 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
4535 		    "Failed to allocate memory for exlogin_buf_dma.\n");
4536 			return -ENOMEM;
4537 		}
4538 	}
4539 
4540 	/* Now configure the dma buffer */
4541 	rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
4542 	if (rval) {
4543 		ql_log(ql_log_fatal, vha, 0xd033,
4544 		    "Setup extended login buffer  ****FAILED****.\n");
4545 		qla2x00_free_exlogin_buffer(ha);
4546 	}
4547 
4548 	return rval;
4549 }
4550 
4551 /*
4552 * qla2x00_free_exlogin_buffer
4553 *
4554 * Input:
4555 *	ha = adapter block pointer
4556 */
4557 void
4558 qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
4559 {
4560 	if (ha->exlogin_buf) {
4561 		dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
4562 		    ha->exlogin_buf, ha->exlogin_buf_dma);
4563 		ha->exlogin_buf = NULL;
4564 		ha->exlogin_size = 0;
4565 	}
4566 }
4567 
4568 static void
4569 qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
4570 {
4571 	u32 temp;
4572 	struct init_cb_81xx *icb = (struct init_cb_81xx *)&vha->hw->init_cb;
4573 	*ret_cnt = FW_DEF_EXCHANGES_CNT;
4574 
4575 	if (max_cnt > vha->hw->max_exchg)
4576 		max_cnt = vha->hw->max_exchg;
4577 
4578 	if (qla_ini_mode_enabled(vha)) {
4579 		if (vha->ql2xiniexchg > max_cnt)
4580 			vha->ql2xiniexchg = max_cnt;
4581 
4582 		if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
4583 			*ret_cnt = vha->ql2xiniexchg;
4584 
4585 	} else if (qla_tgt_mode_enabled(vha)) {
4586 		if (vha->ql2xexchoffld > max_cnt) {
4587 			vha->ql2xexchoffld = max_cnt;
4588 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4589 		}
4590 
4591 		if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
4592 			*ret_cnt = vha->ql2xexchoffld;
4593 	} else if (qla_dual_mode_enabled(vha)) {
4594 		temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
4595 		if (temp > max_cnt) {
4596 			vha->ql2xiniexchg -= (temp - max_cnt)/2;
4597 			vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
4598 			temp = max_cnt;
4599 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4600 		}
4601 
4602 		if (temp > FW_DEF_EXCHANGES_CNT)
4603 			*ret_cnt = temp;
4604 	}
4605 }
4606 
4607 int
4608 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
4609 {
4610 	int rval;
4611 	u16	size, max_cnt;
4612 	u32 actual_cnt, totsz;
4613 	struct qla_hw_data *ha = vha->hw;
4614 
4615 	if (!ha->flags.exchoffld_enabled)
4616 		return QLA_SUCCESS;
4617 
4618 	if (!IS_EXCHG_OFFLD_CAPABLE(ha))
4619 		return QLA_SUCCESS;
4620 
4621 	max_cnt = 0;
4622 	rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
4623 	if (rval != QLA_SUCCESS) {
4624 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
4625 		    "Failed to get exlogin status.\n");
4626 		return rval;
4627 	}
4628 
4629 	qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
4630 	ql_log(ql_log_info, vha, 0xd014,
4631 	    "Actual exchange offload count: %d.\n", actual_cnt);
4632 
4633 	totsz = actual_cnt * size;
4634 
4635 	if (totsz != ha->exchoffld_size) {
4636 		qla2x00_free_exchoffld_buffer(ha);
4637 		if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
4638 			ha->exchoffld_size = 0;
4639 			ha->flags.exchoffld_enabled = 0;
4640 			return QLA_SUCCESS;
4641 		}
4642 
4643 		ha->exchoffld_size = totsz;
4644 
4645 		ql_log(ql_log_info, vha, 0xd016,
4646 		    "Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
4647 		    max_cnt, actual_cnt, size, totsz);
4648 
4649 		ql_log(ql_log_info, vha, 0xd017,
4650 		    "Exchange Buffers requested size = 0x%x\n",
4651 		    ha->exchoffld_size);
4652 
4653 		/* Get consistent memory for extended logins */
4654 		ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
4655 			ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
4656 		if (!ha->exchoffld_buf) {
4657 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4658 			"Failed to allocate memory for Exchange Offload.\n");
4659 
4660 			if (ha->max_exchg >
4661 			    (FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
4662 				ha->max_exchg -= REDUCE_EXCHANGES_CNT;
4663 			} else if (ha->max_exchg >
4664 			    (FW_DEF_EXCHANGES_CNT + 512)) {
4665 				ha->max_exchg -= 512;
4666 			} else {
4667 				ha->flags.exchoffld_enabled = 0;
4668 				ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4669 				    "Disabling Exchange offload due to lack of memory\n");
4670 			}
4671 			ha->exchoffld_size = 0;
4672 
4673 			return -ENOMEM;
4674 		}
4675 	} else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
4676 		/* pathological case */
4677 		qla2x00_free_exchoffld_buffer(ha);
4678 		ha->exchoffld_size = 0;
4679 		ha->flags.exchoffld_enabled = 0;
4680 		ql_log(ql_log_info, vha, 0xd016,
4681 		    "Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
4682 		    ha->exchoffld_size, actual_cnt, size, totsz);
4683 		return 0;
4684 	}
4685 
4686 	/* Now configure the dma buffer */
4687 	rval = qla_set_exchoffld_mem_cfg(vha);
4688 	if (rval) {
4689 		ql_log(ql_log_fatal, vha, 0xd02e,
4690 		    "Setup exchange offload buffer ****FAILED****.\n");
4691 		qla2x00_free_exchoffld_buffer(ha);
4692 	} else {
4693 		/* re-adjust number of target exchange */
4694 		struct init_cb_81xx *icb = (struct init_cb_81xx *)ha->init_cb;
4695 
4696 		if (qla_ini_mode_enabled(vha))
4697 			icb->exchange_count = 0;
4698 		else
4699 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4700 	}
4701 
4702 	return rval;
4703 }
4704 
4705 /*
4706 * qla2x00_free_exchoffld_buffer
4707 *
4708 * Input:
4709 *	ha = adapter block pointer
4710 */
4711 void
4712 qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
4713 {
4714 	if (ha->exchoffld_buf) {
4715 		dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
4716 		    ha->exchoffld_buf, ha->exchoffld_buf_dma);
4717 		ha->exchoffld_buf = NULL;
4718 		ha->exchoffld_size = 0;
4719 	}
4720 }
4721 
4722 /*
4723 * qla2x00_free_fw_dump
4724 *	Frees fw dump stuff.
4725 *
4726 * Input:
4727 *	ha = adapter block pointer
4728 */
4729 static void
4730 qla2x00_free_fw_dump(struct qla_hw_data *ha)
4731 {
4732 	struct fwdt *fwdt = ha->fwdt;
4733 	uint j;
4734 
4735 	if (ha->fce)
4736 		dma_free_coherent(&ha->pdev->dev,
4737 		    FCE_SIZE, ha->fce, ha->fce_dma);
4738 
4739 	if (ha->eft)
4740 		dma_free_coherent(&ha->pdev->dev,
4741 		    EFT_SIZE, ha->eft, ha->eft_dma);
4742 
4743 	vfree(ha->fw_dump);
4744 
4745 	ha->fce = NULL;
4746 	ha->fce_dma = 0;
4747 	ha->flags.fce_enabled = 0;
4748 	ha->eft = NULL;
4749 	ha->eft_dma = 0;
4750 	ha->fw_dumped = false;
4751 	ha->fw_dump_cap_flags = 0;
4752 	ha->fw_dump_reading = 0;
4753 	ha->fw_dump = NULL;
4754 	ha->fw_dump_len = 0;
4755 
4756 	for (j = 0; j < 2; j++, fwdt++) {
4757 		vfree(fwdt->template);
4758 		fwdt->template = NULL;
4759 		fwdt->length = 0;
4760 	}
4761 }
4762 
4763 /*
4764 * qla2x00_mem_free
4765 *      Frees all adapter allocated memory.
4766 *
4767 * Input:
4768 *      ha = adapter block pointer.
4769 */
4770 static void
4771 qla2x00_mem_free(struct qla_hw_data *ha)
4772 {
4773 	qla2x00_free_fw_dump(ha);
4774 
4775 	if (ha->mctp_dump)
4776 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
4777 		    ha->mctp_dump_dma);
4778 	ha->mctp_dump = NULL;
4779 
4780 	mempool_destroy(ha->srb_mempool);
4781 	ha->srb_mempool = NULL;
4782 
4783 	if (ha->dcbx_tlv)
4784 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
4785 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
4786 	ha->dcbx_tlv = NULL;
4787 
4788 	if (ha->xgmac_data)
4789 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
4790 		    ha->xgmac_data, ha->xgmac_data_dma);
4791 	ha->xgmac_data = NULL;
4792 
4793 	if (ha->sns_cmd)
4794 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4795 		ha->sns_cmd, ha->sns_cmd_dma);
4796 	ha->sns_cmd = NULL;
4797 	ha->sns_cmd_dma = 0;
4798 
4799 	if (ha->ct_sns)
4800 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4801 		ha->ct_sns, ha->ct_sns_dma);
4802 	ha->ct_sns = NULL;
4803 	ha->ct_sns_dma = 0;
4804 
4805 	if (ha->sfp_data)
4806 		dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, ha->sfp_data,
4807 		    ha->sfp_data_dma);
4808 	ha->sfp_data = NULL;
4809 
4810 	if (ha->flt)
4811 		dma_free_coherent(&ha->pdev->dev,
4812 		    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE,
4813 		    ha->flt, ha->flt_dma);
4814 	ha->flt = NULL;
4815 	ha->flt_dma = 0;
4816 
4817 	if (ha->ms_iocb)
4818 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4819 	ha->ms_iocb = NULL;
4820 	ha->ms_iocb_dma = 0;
4821 
4822 	if (ha->sf_init_cb)
4823 		dma_pool_free(ha->s_dma_pool,
4824 			      ha->sf_init_cb, ha->sf_init_cb_dma);
4825 
4826 	if (ha->ex_init_cb)
4827 		dma_pool_free(ha->s_dma_pool,
4828 			ha->ex_init_cb, ha->ex_init_cb_dma);
4829 	ha->ex_init_cb = NULL;
4830 	ha->ex_init_cb_dma = 0;
4831 
4832 	if (ha->async_pd)
4833 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4834 	ha->async_pd = NULL;
4835 	ha->async_pd_dma = 0;
4836 
4837 	dma_pool_destroy(ha->s_dma_pool);
4838 	ha->s_dma_pool = NULL;
4839 
4840 	if (ha->gid_list)
4841 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4842 		ha->gid_list, ha->gid_list_dma);
4843 	ha->gid_list = NULL;
4844 	ha->gid_list_dma = 0;
4845 
4846 	if (IS_QLA82XX(ha)) {
4847 		if (!list_empty(&ha->gbl_dsd_list)) {
4848 			struct dsd_dma *dsd_ptr, *tdsd_ptr;
4849 
4850 			/* clean up allocated prev pool */
4851 			list_for_each_entry_safe(dsd_ptr,
4852 				tdsd_ptr, &ha->gbl_dsd_list, list) {
4853 				dma_pool_free(ha->dl_dma_pool,
4854 				dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
4855 				list_del(&dsd_ptr->list);
4856 				kfree(dsd_ptr);
4857 			}
4858 		}
4859 	}
4860 
4861 	dma_pool_destroy(ha->dl_dma_pool);
4862 	ha->dl_dma_pool = NULL;
4863 
4864 	dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4865 	ha->fcp_cmnd_dma_pool = NULL;
4866 
4867 	mempool_destroy(ha->ctx_mempool);
4868 	ha->ctx_mempool = NULL;
4869 
4870 	if (ql2xenabledif && ha->dif_bundl_pool) {
4871 		struct dsd_dma *dsd, *nxt;
4872 
4873 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4874 					 list) {
4875 			list_del(&dsd->list);
4876 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4877 				      dsd->dsd_list_dma);
4878 			ha->dif_bundle_dma_allocs--;
4879 			kfree(dsd);
4880 			ha->dif_bundle_kallocs--;
4881 			ha->pool.unusable.count--;
4882 		}
4883 		list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
4884 			list_del(&dsd->list);
4885 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4886 				      dsd->dsd_list_dma);
4887 			ha->dif_bundle_dma_allocs--;
4888 			kfree(dsd);
4889 			ha->dif_bundle_kallocs--;
4890 		}
4891 	}
4892 
4893 	dma_pool_destroy(ha->dif_bundl_pool);
4894 	ha->dif_bundl_pool = NULL;
4895 
4896 	qlt_mem_free(ha);
4897 	qla_remove_hostmap(ha);
4898 
4899 	if (ha->init_cb)
4900 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
4901 			ha->init_cb, ha->init_cb_dma);
4902 
4903 	dma_pool_destroy(ha->purex_dma_pool);
4904 	ha->purex_dma_pool = NULL;
4905 
4906 	if (ha->elsrej.c) {
4907 		dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
4908 		    ha->elsrej.c, ha->elsrej.cdma);
4909 		ha->elsrej.c = NULL;
4910 	}
4911 
4912 	ha->init_cb = NULL;
4913 	ha->init_cb_dma = 0;
4914 
4915 	vfree(ha->optrom_buffer);
4916 	ha->optrom_buffer = NULL;
4917 	kfree(ha->nvram);
4918 	ha->nvram = NULL;
4919 	kfree(ha->npiv_info);
4920 	ha->npiv_info = NULL;
4921 	kfree(ha->swl);
4922 	ha->swl = NULL;
4923 	kfree(ha->loop_id_map);
4924 	ha->sf_init_cb = NULL;
4925 	ha->sf_init_cb_dma = 0;
4926 	ha->loop_id_map = NULL;
4927 }
4928 
4929 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
4930 						struct qla_hw_data *ha)
4931 {
4932 	struct Scsi_Host *host;
4933 	struct scsi_qla_host *vha = NULL;
4934 
4935 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
4936 	if (!host) {
4937 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
4938 		    "Failed to allocate host from the scsi layer, aborting.\n");
4939 		return NULL;
4940 	}
4941 
4942 	/* Clear our data area */
4943 	vha = shost_priv(host);
4944 	memset(vha, 0, sizeof(scsi_qla_host_t));
4945 
4946 	vha->host = host;
4947 	vha->host_no = host->host_no;
4948 	vha->hw = ha;
4949 
4950 	vha->qlini_mode = ql2x_ini_mode;
4951 	vha->ql2xexchoffld = ql2xexchoffld;
4952 	vha->ql2xiniexchg = ql2xiniexchg;
4953 
4954 	INIT_LIST_HEAD(&vha->vp_fcports);
4955 	INIT_LIST_HEAD(&vha->work_list);
4956 	INIT_LIST_HEAD(&vha->list);
4957 	INIT_LIST_HEAD(&vha->qla_cmd_list);
4958 	INIT_LIST_HEAD(&vha->qla_sess_op_cmd_list);
4959 	INIT_LIST_HEAD(&vha->logo_list);
4960 	INIT_LIST_HEAD(&vha->plogi_ack_list);
4961 	INIT_LIST_HEAD(&vha->qp_list);
4962 	INIT_LIST_HEAD(&vha->gnl.fcports);
4963 	INIT_LIST_HEAD(&vha->gpnid_list);
4964 	INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
4965 
4966 	INIT_LIST_HEAD(&vha->purex_list.head);
4967 	spin_lock_init(&vha->purex_list.lock);
4968 
4969 	spin_lock_init(&vha->work_lock);
4970 	spin_lock_init(&vha->cmd_list_lock);
4971 	init_waitqueue_head(&vha->fcport_waitQ);
4972 	init_waitqueue_head(&vha->vref_waitq);
4973 	qla_enode_init(vha);
4974 	qla_edb_init(vha);
4975 
4976 
4977 	vha->gnl.size = sizeof(struct get_name_list_extended) *
4978 			(ha->max_loop_id + 1);
4979 	vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
4980 	    vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
4981 	if (!vha->gnl.l) {
4982 		ql_log(ql_log_fatal, vha, 0xd04a,
4983 		    "Alloc failed for name list.\n");
4984 		scsi_host_put(vha->host);
4985 		return NULL;
4986 	}
4987 
4988 	/* todo: what about ext login? */
4989 	vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
4990 	vha->scan.l = vmalloc(vha->scan.size);
4991 	if (!vha->scan.l) {
4992 		ql_log(ql_log_fatal, vha, 0xd04a,
4993 		    "Alloc failed for scan database.\n");
4994 		dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
4995 		    vha->gnl.l, vha->gnl.ldma);
4996 		vha->gnl.l = NULL;
4997 		scsi_host_put(vha->host);
4998 		return NULL;
4999 	}
5000 	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
5001 
5002 	sprintf(vha->host_str, "%s_%lu", QLA2XXX_DRIVER_NAME, vha->host_no);
5003 	ql_dbg(ql_dbg_init, vha, 0x0041,
5004 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
5005 	    vha->host, vha->hw, vha,
5006 	    dev_name(&(ha->pdev->dev)));
5007 
5008 	return vha;
5009 }
5010 
5011 struct qla_work_evt *
5012 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
5013 {
5014 	struct qla_work_evt *e;
5015 	uint8_t bail;
5016 
5017 	if (test_bit(UNLOADING, &vha->dpc_flags))
5018 		return NULL;
5019 
5020 	QLA_VHA_MARK_BUSY(vha, bail);
5021 	if (bail)
5022 		return NULL;
5023 
5024 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
5025 	if (!e) {
5026 		QLA_VHA_MARK_NOT_BUSY(vha);
5027 		return NULL;
5028 	}
5029 
5030 	INIT_LIST_HEAD(&e->list);
5031 	e->type = type;
5032 	e->flags = QLA_EVT_FLAG_FREE;
5033 	return e;
5034 }
5035 
5036 int
5037 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
5038 {
5039 	unsigned long flags;
5040 	bool q = false;
5041 
5042 	spin_lock_irqsave(&vha->work_lock, flags);
5043 	list_add_tail(&e->list, &vha->work_list);
5044 
5045 	if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
5046 		q = true;
5047 
5048 	spin_unlock_irqrestore(&vha->work_lock, flags);
5049 
5050 	if (q)
5051 		queue_work(vha->hw->wq, &vha->iocb_work);
5052 
5053 	return QLA_SUCCESS;
5054 }
5055 
5056 int
5057 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
5058     u32 data)
5059 {
5060 	struct qla_work_evt *e;
5061 
5062 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
5063 	if (!e)
5064 		return QLA_FUNCTION_FAILED;
5065 
5066 	e->u.aen.code = code;
5067 	e->u.aen.data = data;
5068 	return qla2x00_post_work(vha, e);
5069 }
5070 
5071 int
5072 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
5073 {
5074 	struct qla_work_evt *e;
5075 
5076 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
5077 	if (!e)
5078 		return QLA_FUNCTION_FAILED;
5079 
5080 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
5081 	return qla2x00_post_work(vha, e);
5082 }
5083 
5084 #define qla2x00_post_async_work(name, type)	\
5085 int qla2x00_post_async_##name##_work(		\
5086     struct scsi_qla_host *vha,			\
5087     fc_port_t *fcport, uint16_t *data)		\
5088 {						\
5089 	struct qla_work_evt *e;			\
5090 						\
5091 	e = qla2x00_alloc_work(vha, type);	\
5092 	if (!e)					\
5093 		return QLA_FUNCTION_FAILED;	\
5094 						\
5095 	e->u.logio.fcport = fcport;		\
5096 	if (data) {				\
5097 		e->u.logio.data[0] = data[0];	\
5098 		e->u.logio.data[1] = data[1];	\
5099 	}					\
5100 	fcport->flags |= FCF_ASYNC_ACTIVE;	\
5101 	return qla2x00_post_work(vha, e);	\
5102 }
5103 
5104 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
5105 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
5106 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
5107 qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
5108 qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
5109 
5110 int
5111 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
5112 {
5113 	struct qla_work_evt *e;
5114 
5115 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
5116 	if (!e)
5117 		return QLA_FUNCTION_FAILED;
5118 
5119 	e->u.uevent.code = code;
5120 	return qla2x00_post_work(vha, e);
5121 }
5122 
5123 static void
5124 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
5125 {
5126 	char event_string[40];
5127 	char *envp[] = { event_string, NULL };
5128 
5129 	switch (code) {
5130 	case QLA_UEVENT_CODE_FW_DUMP:
5131 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
5132 		    vha->host_no);
5133 		break;
5134 	default:
5135 		/* do nothing */
5136 		break;
5137 	}
5138 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
5139 }
5140 
5141 int
5142 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
5143 			uint32_t *data, int cnt)
5144 {
5145 	struct qla_work_evt *e;
5146 
5147 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
5148 	if (!e)
5149 		return QLA_FUNCTION_FAILED;
5150 
5151 	e->u.aenfx.evtcode = evtcode;
5152 	e->u.aenfx.count = cnt;
5153 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
5154 	return qla2x00_post_work(vha, e);
5155 }
5156 
5157 void qla24xx_sched_upd_fcport(fc_port_t *fcport)
5158 {
5159 	unsigned long flags;
5160 
5161 	if (IS_SW_RESV_ADDR(fcport->d_id))
5162 		return;
5163 
5164 	spin_lock_irqsave(&fcport->vha->work_lock, flags);
5165 	if (fcport->disc_state == DSC_UPD_FCPORT) {
5166 		spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5167 		return;
5168 	}
5169 	fcport->jiffies_at_registration = jiffies;
5170 	fcport->sec_since_registration = 0;
5171 	fcport->next_disc_state = DSC_DELETED;
5172 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5173 	spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5174 
5175 	queue_work(system_unbound_wq, &fcport->reg_work);
5176 }
5177 
5178 static
5179 void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
5180 {
5181 	unsigned long flags;
5182 	fc_port_t *fcport =  NULL, *tfcp;
5183 	struct qlt_plogi_ack_t *pla =
5184 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
5185 	uint8_t free_fcport = 0;
5186 
5187 	ql_dbg(ql_dbg_disc, vha, 0xffff,
5188 	    "%s %d %8phC enter\n",
5189 	    __func__, __LINE__, e->u.new_sess.port_name);
5190 
5191 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5192 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
5193 	if (fcport) {
5194 		fcport->d_id = e->u.new_sess.id;
5195 		if (pla) {
5196 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5197 			memcpy(fcport->node_name,
5198 			    pla->iocb.u.isp24.u.plogi.node_name,
5199 			    WWN_SIZE);
5200 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
5201 			/* we took an extra ref_count to prevent PLOGI ACK when
5202 			 * fcport/sess has not been created.
5203 			 */
5204 			pla->ref_count--;
5205 		}
5206 	} else {
5207 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5208 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5209 		if (fcport) {
5210 			fcport->d_id = e->u.new_sess.id;
5211 			fcport->flags |= FCF_FABRIC_DEVICE;
5212 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5213 			fcport->tgt_short_link_down_cnt = 0;
5214 
5215 			memcpy(fcport->port_name, e->u.new_sess.port_name,
5216 			    WWN_SIZE);
5217 
5218 			fcport->fc4_type = e->u.new_sess.fc4_type;
5219 			if (NVME_PRIORITY(vha->hw, fcport))
5220 				fcport->do_prli_nvme = 1;
5221 			else
5222 				fcport->do_prli_nvme = 0;
5223 
5224 			if (e->u.new_sess.fc4_type & FS_FCP_IS_N2N) {
5225 				fcport->dm_login_expire = jiffies +
5226 					QLA_N2N_WAIT_TIME * HZ;
5227 				fcport->fc4_type = FS_FC4TYPE_FCP;
5228 				fcport->n2n_flag = 1;
5229 				if (vha->flags.nvme_enabled)
5230 					fcport->fc4_type |= FS_FC4TYPE_NVME;
5231 			}
5232 
5233 		} else {
5234 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5235 				   "%s %8phC mem alloc fail.\n",
5236 				   __func__, e->u.new_sess.port_name);
5237 
5238 			if (pla) {
5239 				list_del(&pla->list);
5240 				kmem_cache_free(qla_tgt_plogi_cachep, pla);
5241 			}
5242 			return;
5243 		}
5244 
5245 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5246 		/* search again to make sure no one else got ahead */
5247 		tfcp = qla2x00_find_fcport_by_wwpn(vha,
5248 		    e->u.new_sess.port_name, 1);
5249 		if (tfcp) {
5250 			/* should rarily happen */
5251 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5252 			    "%s %8phC found existing fcport b4 add. DS %d LS %d\n",
5253 			    __func__, tfcp->port_name, tfcp->disc_state,
5254 			    tfcp->fw_login_state);
5255 
5256 			free_fcport = 1;
5257 		} else {
5258 			list_add_tail(&fcport->list, &vha->vp_fcports);
5259 
5260 		}
5261 		if (pla) {
5262 			qlt_plogi_ack_link(vha, pla, fcport,
5263 			    QLT_PLOGI_LINK_SAME_WWN);
5264 			pla->ref_count--;
5265 		}
5266 	}
5267 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5268 
5269 	if (fcport) {
5270 		fcport->id_changed = 1;
5271 		fcport->scan_state = QLA_FCPORT_FOUND;
5272 		fcport->chip_reset = vha->hw->base_qpair->chip_reset;
5273 		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
5274 
5275 		if (pla) {
5276 			if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
5277 				u16 wd3_lo;
5278 
5279 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5280 				fcport->local = 0;
5281 				fcport->loop_id =
5282 					le16_to_cpu(
5283 					    pla->iocb.u.isp24.nport_handle);
5284 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5285 				wd3_lo =
5286 				    le16_to_cpu(
5287 					pla->iocb.u.isp24.u.prli.wd3_lo);
5288 
5289 				if (wd3_lo & BIT_7)
5290 					fcport->conf_compl_supported = 1;
5291 
5292 				if ((wd3_lo & BIT_4) == 0)
5293 					fcport->port_type = FCT_INITIATOR;
5294 				else
5295 					fcport->port_type = FCT_TARGET;
5296 			}
5297 			qlt_plogi_ack_unref(vha, pla);
5298 		} else {
5299 			fc_port_t *dfcp = NULL;
5300 
5301 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5302 			tfcp = qla2x00_find_fcport_by_nportid(vha,
5303 			    &e->u.new_sess.id, 1);
5304 			if (tfcp && (tfcp != fcport)) {
5305 				/*
5306 				 * We have a conflict fcport with same NportID.
5307 				 */
5308 				ql_dbg(ql_dbg_disc, vha, 0xffff,
5309 				    "%s %8phC found conflict b4 add. DS %d LS %d\n",
5310 				    __func__, tfcp->port_name, tfcp->disc_state,
5311 				    tfcp->fw_login_state);
5312 
5313 				switch (tfcp->disc_state) {
5314 				case DSC_DELETED:
5315 					break;
5316 				case DSC_DELETE_PEND:
5317 					fcport->login_pause = 1;
5318 					tfcp->conflict = fcport;
5319 					break;
5320 				default:
5321 					fcport->login_pause = 1;
5322 					tfcp->conflict = fcport;
5323 					dfcp = tfcp;
5324 					break;
5325 				}
5326 			}
5327 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5328 			if (dfcp)
5329 				qlt_schedule_sess_for_deletion(tfcp);
5330 
5331 			if (N2N_TOPO(vha->hw)) {
5332 				fcport->flags &= ~FCF_FABRIC_DEVICE;
5333 				fcport->keep_nport_handle = 1;
5334 				if (vha->flags.nvme_enabled) {
5335 					fcport->fc4_type =
5336 					    (FS_FC4TYPE_NVME | FS_FC4TYPE_FCP);
5337 					fcport->n2n_flag = 1;
5338 				}
5339 				fcport->fw_login_state = 0;
5340 
5341 				schedule_delayed_work(&vha->scan.scan_work, 5);
5342 			} else {
5343 				qla24xx_fcport_handle_login(vha, fcport);
5344 			}
5345 		}
5346 	}
5347 
5348 	if (free_fcport) {
5349 		qla2x00_free_fcport(fcport);
5350 		if (pla) {
5351 			list_del(&pla->list);
5352 			kmem_cache_free(qla_tgt_plogi_cachep, pla);
5353 		}
5354 	}
5355 }
5356 
5357 static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
5358 {
5359 	struct srb *sp = e->u.iosb.sp;
5360 	int rval;
5361 
5362 	rval = qla2x00_start_sp(sp);
5363 	if (rval != QLA_SUCCESS) {
5364 		ql_dbg(ql_dbg_disc, vha, 0x2043,
5365 		    "%s: %s: Re-issue IOCB failed (%d).\n",
5366 		    __func__, sp->name, rval);
5367 		qla24xx_sp_unmap(vha, sp);
5368 	}
5369 }
5370 
5371 void
5372 qla2x00_do_work(struct scsi_qla_host *vha)
5373 {
5374 	struct qla_work_evt *e, *tmp;
5375 	unsigned long flags;
5376 	LIST_HEAD(work);
5377 	int rc;
5378 
5379 	spin_lock_irqsave(&vha->work_lock, flags);
5380 	list_splice_init(&vha->work_list, &work);
5381 	spin_unlock_irqrestore(&vha->work_lock, flags);
5382 
5383 	list_for_each_entry_safe(e, tmp, &work, list) {
5384 		rc = QLA_SUCCESS;
5385 		switch (e->type) {
5386 		case QLA_EVT_AEN:
5387 			fc_host_post_event(vha->host, fc_get_event_number(),
5388 			    e->u.aen.code, e->u.aen.data);
5389 			break;
5390 		case QLA_EVT_IDC_ACK:
5391 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
5392 			break;
5393 		case QLA_EVT_ASYNC_LOGIN:
5394 			qla2x00_async_login(vha, e->u.logio.fcport,
5395 			    e->u.logio.data);
5396 			break;
5397 		case QLA_EVT_ASYNC_LOGOUT:
5398 			rc = qla2x00_async_logout(vha, e->u.logio.fcport);
5399 			break;
5400 		case QLA_EVT_ASYNC_ADISC:
5401 			qla2x00_async_adisc(vha, e->u.logio.fcport,
5402 			    e->u.logio.data);
5403 			break;
5404 		case QLA_EVT_UEVENT:
5405 			qla2x00_uevent_emit(vha, e->u.uevent.code);
5406 			break;
5407 		case QLA_EVT_AENFX:
5408 			qlafx00_process_aen(vha, e);
5409 			break;
5410 		case QLA_EVT_GPNID:
5411 			qla24xx_async_gpnid(vha, &e->u.gpnid.id);
5412 			break;
5413 		case QLA_EVT_UNMAP:
5414 			qla24xx_sp_unmap(vha, e->u.iosb.sp);
5415 			break;
5416 		case QLA_EVT_RELOGIN:
5417 			qla2x00_relogin(vha);
5418 			break;
5419 		case QLA_EVT_NEW_SESS:
5420 			qla24xx_create_new_sess(vha, e);
5421 			break;
5422 		case QLA_EVT_GPDB:
5423 			qla24xx_async_gpdb(vha, e->u.fcport.fcport,
5424 			    e->u.fcport.opt);
5425 			break;
5426 		case QLA_EVT_PRLI:
5427 			qla24xx_async_prli(vha, e->u.fcport.fcport);
5428 			break;
5429 		case QLA_EVT_GPSC:
5430 			qla24xx_async_gpsc(vha, e->u.fcport.fcport);
5431 			break;
5432 		case QLA_EVT_GNL:
5433 			qla24xx_async_gnl(vha, e->u.fcport.fcport);
5434 			break;
5435 		case QLA_EVT_NACK:
5436 			qla24xx_do_nack_work(vha, e);
5437 			break;
5438 		case QLA_EVT_ASYNC_PRLO:
5439 			rc = qla2x00_async_prlo(vha, e->u.logio.fcport);
5440 			break;
5441 		case QLA_EVT_ASYNC_PRLO_DONE:
5442 			qla2x00_async_prlo_done(vha, e->u.logio.fcport,
5443 			    e->u.logio.data);
5444 			break;
5445 		case QLA_EVT_GPNFT:
5446 			qla24xx_async_gpnft(vha, e->u.gpnft.fc4_type,
5447 			    e->u.gpnft.sp);
5448 			break;
5449 		case QLA_EVT_GPNFT_DONE:
5450 			qla24xx_async_gpnft_done(vha, e->u.iosb.sp);
5451 			break;
5452 		case QLA_EVT_GNNFT_DONE:
5453 			qla24xx_async_gnnft_done(vha, e->u.iosb.sp);
5454 			break;
5455 		case QLA_EVT_GNNID:
5456 			qla24xx_async_gnnid(vha, e->u.fcport.fcport);
5457 			break;
5458 		case QLA_EVT_GFPNID:
5459 			qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
5460 			break;
5461 		case QLA_EVT_SP_RETRY:
5462 			qla_sp_retry(vha, e);
5463 			break;
5464 		case QLA_EVT_IIDMA:
5465 			qla_do_iidma_work(vha, e->u.fcport.fcport);
5466 			break;
5467 		case QLA_EVT_ELS_PLOGI:
5468 			qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
5469 			    e->u.fcport.fcport, false);
5470 			break;
5471 		case QLA_EVT_SA_REPLACE:
5472 			qla24xx_issue_sa_replace_iocb(vha, e);
5473 			break;
5474 		}
5475 
5476 		if (rc == EAGAIN) {
5477 			/* put 'work' at head of 'vha->work_list' */
5478 			spin_lock_irqsave(&vha->work_lock, flags);
5479 			list_splice(&work, &vha->work_list);
5480 			spin_unlock_irqrestore(&vha->work_lock, flags);
5481 			break;
5482 		}
5483 		list_del_init(&e->list);
5484 		if (e->flags & QLA_EVT_FLAG_FREE)
5485 			kfree(e);
5486 
5487 		/* For each work completed decrement vha ref count */
5488 		QLA_VHA_MARK_NOT_BUSY(vha);
5489 	}
5490 }
5491 
5492 int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
5493 {
5494 	struct qla_work_evt *e;
5495 
5496 	e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
5497 
5498 	if (!e) {
5499 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5500 		return QLA_FUNCTION_FAILED;
5501 	}
5502 
5503 	return qla2x00_post_work(vha, e);
5504 }
5505 
5506 /* Relogins all the fcports of a vport
5507  * Context: dpc thread
5508  */
5509 void qla2x00_relogin(struct scsi_qla_host *vha)
5510 {
5511 	fc_port_t       *fcport;
5512 	int status, relogin_needed = 0;
5513 	struct event_arg ea;
5514 
5515 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5516 		/*
5517 		 * If the port is not ONLINE then try to login
5518 		 * to it if we haven't run out of retries.
5519 		 */
5520 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
5521 		    fcport->login_retry) {
5522 			if (fcport->scan_state != QLA_FCPORT_FOUND ||
5523 			    fcport->disc_state == DSC_LOGIN_AUTH_PEND ||
5524 			    fcport->disc_state == DSC_LOGIN_COMPLETE)
5525 				continue;
5526 
5527 			if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
5528 				fcport->disc_state == DSC_DELETE_PEND) {
5529 				relogin_needed = 1;
5530 			} else {
5531 				if (vha->hw->current_topology != ISP_CFG_NL) {
5532 					memset(&ea, 0, sizeof(ea));
5533 					ea.fcport = fcport;
5534 					qla24xx_handle_relogin_event(vha, &ea);
5535 				} else if (vha->hw->current_topology ==
5536 				    ISP_CFG_NL) {
5537 					fcport->login_retry--;
5538 					status =
5539 					    qla2x00_local_device_login(vha,
5540 						fcport);
5541 					if (status == QLA_SUCCESS) {
5542 						fcport->old_loop_id =
5543 						    fcport->loop_id;
5544 						ql_dbg(ql_dbg_disc, vha, 0x2003,
5545 						    "Port login OK: logged in ID 0x%x.\n",
5546 						    fcport->loop_id);
5547 						qla2x00_update_fcport
5548 							(vha, fcport);
5549 					} else if (status == 1) {
5550 						set_bit(RELOGIN_NEEDED,
5551 						    &vha->dpc_flags);
5552 						/* retry the login again */
5553 						ql_dbg(ql_dbg_disc, vha, 0x2007,
5554 						    "Retrying %d login again loop_id 0x%x.\n",
5555 						    fcport->login_retry,
5556 						    fcport->loop_id);
5557 					} else {
5558 						fcport->login_retry = 0;
5559 					}
5560 
5561 					if (fcport->login_retry == 0 &&
5562 					    status != QLA_SUCCESS)
5563 						qla2x00_clear_loop_id(fcport);
5564 				}
5565 			}
5566 		}
5567 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5568 			break;
5569 	}
5570 
5571 	if (relogin_needed)
5572 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5573 
5574 	ql_dbg(ql_dbg_disc, vha, 0x400e,
5575 	    "Relogin end.\n");
5576 }
5577 
5578 /* Schedule work on any of the dpc-workqueues */
5579 void
5580 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
5581 {
5582 	struct qla_hw_data *ha = base_vha->hw;
5583 
5584 	switch (work_code) {
5585 	case MBA_IDC_AEN: /* 0x8200 */
5586 		if (ha->dpc_lp_wq)
5587 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
5588 		break;
5589 
5590 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
5591 		if (!ha->flags.nic_core_reset_hdlr_active) {
5592 			if (ha->dpc_hp_wq)
5593 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
5594 		} else
5595 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
5596 			    "NIC Core reset is already active. Skip "
5597 			    "scheduling it again.\n");
5598 		break;
5599 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
5600 		if (ha->dpc_hp_wq)
5601 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
5602 		break;
5603 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
5604 		if (ha->dpc_hp_wq)
5605 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
5606 		break;
5607 	default:
5608 		ql_log(ql_log_warn, base_vha, 0xb05f,
5609 		    "Unknown work-code=0x%x.\n", work_code);
5610 	}
5611 
5612 	return;
5613 }
5614 
5615 /* Work: Perform NIC Core Unrecoverable state handling */
5616 void
5617 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
5618 {
5619 	struct qla_hw_data *ha =
5620 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
5621 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5622 	uint32_t dev_state = 0;
5623 
5624 	qla83xx_idc_lock(base_vha, 0);
5625 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5626 	qla83xx_reset_ownership(base_vha);
5627 	if (ha->flags.nic_core_reset_owner) {
5628 		ha->flags.nic_core_reset_owner = 0;
5629 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5630 		    QLA8XXX_DEV_FAILED);
5631 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
5632 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5633 	}
5634 	qla83xx_idc_unlock(base_vha, 0);
5635 }
5636 
5637 /* Work: Execute IDC state handler */
5638 void
5639 qla83xx_idc_state_handler_work(struct work_struct *work)
5640 {
5641 	struct qla_hw_data *ha =
5642 		container_of(work, struct qla_hw_data, idc_state_handler);
5643 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5644 	uint32_t dev_state = 0;
5645 
5646 	qla83xx_idc_lock(base_vha, 0);
5647 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5648 	if (dev_state == QLA8XXX_DEV_FAILED ||
5649 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
5650 		qla83xx_idc_state_handler(base_vha);
5651 	qla83xx_idc_unlock(base_vha, 0);
5652 }
5653 
5654 static int
5655 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
5656 {
5657 	int rval = QLA_SUCCESS;
5658 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
5659 	uint32_t heart_beat_counter1, heart_beat_counter2;
5660 
5661 	do {
5662 		if (time_after(jiffies, heart_beat_wait)) {
5663 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
5664 			    "Nic Core f/w is not alive.\n");
5665 			rval = QLA_FUNCTION_FAILED;
5666 			break;
5667 		}
5668 
5669 		qla83xx_idc_lock(base_vha, 0);
5670 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5671 		    &heart_beat_counter1);
5672 		qla83xx_idc_unlock(base_vha, 0);
5673 		msleep(100);
5674 		qla83xx_idc_lock(base_vha, 0);
5675 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5676 		    &heart_beat_counter2);
5677 		qla83xx_idc_unlock(base_vha, 0);
5678 	} while (heart_beat_counter1 == heart_beat_counter2);
5679 
5680 	return rval;
5681 }
5682 
5683 /* Work: Perform NIC Core Reset handling */
5684 void
5685 qla83xx_nic_core_reset_work(struct work_struct *work)
5686 {
5687 	struct qla_hw_data *ha =
5688 		container_of(work, struct qla_hw_data, nic_core_reset);
5689 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5690 	uint32_t dev_state = 0;
5691 
5692 	if (IS_QLA2031(ha)) {
5693 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
5694 			ql_log(ql_log_warn, base_vha, 0xb081,
5695 			    "Failed to dump mctp\n");
5696 		return;
5697 	}
5698 
5699 	if (!ha->flags.nic_core_reset_hdlr_active) {
5700 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
5701 			qla83xx_idc_lock(base_vha, 0);
5702 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5703 			    &dev_state);
5704 			qla83xx_idc_unlock(base_vha, 0);
5705 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
5706 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
5707 				    "Nic Core f/w is alive.\n");
5708 				return;
5709 			}
5710 		}
5711 
5712 		ha->flags.nic_core_reset_hdlr_active = 1;
5713 		if (qla83xx_nic_core_reset(base_vha)) {
5714 			/* NIC Core reset failed. */
5715 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
5716 			    "NIC Core reset failed.\n");
5717 		}
5718 		ha->flags.nic_core_reset_hdlr_active = 0;
5719 	}
5720 }
5721 
5722 /* Work: Handle 8200 IDC aens */
5723 void
5724 qla83xx_service_idc_aen(struct work_struct *work)
5725 {
5726 	struct qla_hw_data *ha =
5727 		container_of(work, struct qla_hw_data, idc_aen);
5728 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5729 	uint32_t dev_state, idc_control;
5730 
5731 	qla83xx_idc_lock(base_vha, 0);
5732 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5733 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
5734 	qla83xx_idc_unlock(base_vha, 0);
5735 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
5736 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
5737 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
5738 			    "Application requested NIC Core Reset.\n");
5739 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5740 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
5741 		    QLA_SUCCESS) {
5742 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
5743 			    "Other protocol driver requested NIC Core Reset.\n");
5744 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5745 		}
5746 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
5747 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
5748 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5749 	}
5750 }
5751 
5752 /*
5753  * Control the frequency of IDC lock retries
5754  */
5755 #define QLA83XX_WAIT_LOGIC_MS	100
5756 
5757 static int
5758 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
5759 {
5760 	int rval;
5761 	uint32_t data;
5762 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
5763 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
5764 	struct qla_hw_data *ha = base_vha->hw;
5765 
5766 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
5767 	    "Trying force recovery of the IDC lock.\n");
5768 
5769 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
5770 	if (rval)
5771 		return rval;
5772 
5773 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
5774 		return QLA_SUCCESS;
5775 	} else {
5776 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
5777 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5778 		    data);
5779 		if (rval)
5780 			return rval;
5781 
5782 		msleep(200);
5783 
5784 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5785 		    &data);
5786 		if (rval)
5787 			return rval;
5788 
5789 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
5790 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
5791 					~(idc_lck_rcvry_stage_mask));
5792 			rval = qla83xx_wr_reg(base_vha,
5793 			    QLA83XX_IDC_LOCK_RECOVERY, data);
5794 			if (rval)
5795 				return rval;
5796 
5797 			/* Forcefully perform IDC UnLock */
5798 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
5799 			    &data);
5800 			if (rval)
5801 				return rval;
5802 			/* Clear lock-id by setting 0xff */
5803 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5804 			    0xff);
5805 			if (rval)
5806 				return rval;
5807 			/* Clear lock-recovery by setting 0x0 */
5808 			rval = qla83xx_wr_reg(base_vha,
5809 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
5810 			if (rval)
5811 				return rval;
5812 		} else
5813 			return QLA_SUCCESS;
5814 	}
5815 
5816 	return rval;
5817 }
5818 
5819 static int
5820 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
5821 {
5822 	int rval = QLA_SUCCESS;
5823 	uint32_t o_drv_lockid, n_drv_lockid;
5824 	unsigned long lock_recovery_timeout;
5825 
5826 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
5827 retry_lockid:
5828 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
5829 	if (rval)
5830 		goto exit;
5831 
5832 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
5833 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
5834 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
5835 			return QLA_SUCCESS;
5836 		else
5837 			return QLA_FUNCTION_FAILED;
5838 	}
5839 
5840 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
5841 	if (rval)
5842 		goto exit;
5843 
5844 	if (o_drv_lockid == n_drv_lockid) {
5845 		msleep(QLA83XX_WAIT_LOGIC_MS);
5846 		goto retry_lockid;
5847 	} else
5848 		return QLA_SUCCESS;
5849 
5850 exit:
5851 	return rval;
5852 }
5853 
5854 /*
5855  * Context: task, can sleep
5856  */
5857 void
5858 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
5859 {
5860 	uint32_t data;
5861 	uint32_t lock_owner;
5862 	struct qla_hw_data *ha = base_vha->hw;
5863 
5864 	might_sleep();
5865 
5866 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
5867 retry_lock:
5868 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
5869 	    == QLA_SUCCESS) {
5870 		if (data) {
5871 			/* Setting lock-id to our function-number */
5872 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5873 			    ha->portnum);
5874 		} else {
5875 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5876 			    &lock_owner);
5877 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
5878 			    "Failed to acquire IDC lock, acquired by %d, "
5879 			    "retrying...\n", lock_owner);
5880 
5881 			/* Retry/Perform IDC-Lock recovery */
5882 			if (qla83xx_idc_lock_recovery(base_vha)
5883 			    == QLA_SUCCESS) {
5884 				msleep(QLA83XX_WAIT_LOGIC_MS);
5885 				goto retry_lock;
5886 			} else
5887 				ql_log(ql_log_warn, base_vha, 0xb075,
5888 				    "IDC Lock recovery FAILED.\n");
5889 		}
5890 
5891 	}
5892 
5893 	return;
5894 }
5895 
5896 static bool
5897 qla25xx_rdp_rsp_reduce_size(struct scsi_qla_host *vha,
5898 	struct purex_entry_24xx *purex)
5899 {
5900 	char fwstr[16];
5901 	u32 sid = purex->s_id[2] << 16 | purex->s_id[1] << 8 | purex->s_id[0];
5902 	struct port_database_24xx *pdb;
5903 
5904 	/* Domain Controller is always logged-out. */
5905 	/* if RDP request is not from Domain Controller: */
5906 	if (sid != 0xfffc01)
5907 		return false;
5908 
5909 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: s_id=%#x\n", __func__, sid);
5910 
5911 	pdb = kzalloc(sizeof(*pdb), GFP_KERNEL);
5912 	if (!pdb) {
5913 		ql_dbg(ql_dbg_init, vha, 0x0181,
5914 		    "%s: Failed allocate pdb\n", __func__);
5915 	} else if (qla24xx_get_port_database(vha,
5916 				le16_to_cpu(purex->nport_handle), pdb)) {
5917 		ql_dbg(ql_dbg_init, vha, 0x0181,
5918 		    "%s: Failed get pdb sid=%x\n", __func__, sid);
5919 	} else if (pdb->current_login_state != PDS_PLOGI_COMPLETE &&
5920 	    pdb->current_login_state != PDS_PRLI_COMPLETE) {
5921 		ql_dbg(ql_dbg_init, vha, 0x0181,
5922 		    "%s: Port not logged in sid=%#x\n", __func__, sid);
5923 	} else {
5924 		/* RDP request is from logged in port */
5925 		kfree(pdb);
5926 		return false;
5927 	}
5928 	kfree(pdb);
5929 
5930 	vha->hw->isp_ops->fw_version_str(vha, fwstr, sizeof(fwstr));
5931 	fwstr[strcspn(fwstr, " ")] = 0;
5932 	/* if FW version allows RDP response length upto 2048 bytes: */
5933 	if (strcmp(fwstr, "8.09.00") > 0 || strcmp(fwstr, "8.05.65") == 0)
5934 		return false;
5935 
5936 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: fw=%s\n", __func__, fwstr);
5937 
5938 	/* RDP response length is to be reduced to maximum 256 bytes */
5939 	return true;
5940 }
5941 
5942 /*
5943  * Function Name: qla24xx_process_purex_iocb
5944  *
5945  * Description:
5946  * Prepare a RDP response and send to Fabric switch
5947  *
5948  * PARAMETERS:
5949  * vha:	SCSI qla host
5950  * purex: RDP request received by HBA
5951  */
5952 void qla24xx_process_purex_rdp(struct scsi_qla_host *vha,
5953 			       struct purex_item *item)
5954 {
5955 	struct qla_hw_data *ha = vha->hw;
5956 	struct purex_entry_24xx *purex =
5957 	    (struct purex_entry_24xx *)&item->iocb;
5958 	dma_addr_t rsp_els_dma;
5959 	dma_addr_t rsp_payload_dma;
5960 	dma_addr_t stat_dma;
5961 	dma_addr_t sfp_dma;
5962 	struct els_entry_24xx *rsp_els = NULL;
5963 	struct rdp_rsp_payload *rsp_payload = NULL;
5964 	struct link_statistics *stat = NULL;
5965 	uint8_t *sfp = NULL;
5966 	uint16_t sfp_flags = 0;
5967 	uint rsp_payload_length = sizeof(*rsp_payload);
5968 	int rval;
5969 
5970 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0180,
5971 	    "%s: Enter\n", __func__);
5972 
5973 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0181,
5974 	    "-------- ELS REQ -------\n");
5975 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0182,
5976 	    purex, sizeof(*purex));
5977 
5978 	if (qla25xx_rdp_rsp_reduce_size(vha, purex)) {
5979 		rsp_payload_length =
5980 		    offsetof(typeof(*rsp_payload), optical_elmt_desc);
5981 		ql_dbg(ql_dbg_init, vha, 0x0181,
5982 		    "Reducing RSP payload length to %u bytes...\n",
5983 		    rsp_payload_length);
5984 	}
5985 
5986 	rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els),
5987 	    &rsp_els_dma, GFP_KERNEL);
5988 	if (!rsp_els) {
5989 		ql_log(ql_log_warn, vha, 0x0183,
5990 		    "Failed allocate dma buffer ELS RSP.\n");
5991 		goto dealloc;
5992 	}
5993 
5994 	rsp_payload = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
5995 	    &rsp_payload_dma, GFP_KERNEL);
5996 	if (!rsp_payload) {
5997 		ql_log(ql_log_warn, vha, 0x0184,
5998 		    "Failed allocate dma buffer ELS RSP payload.\n");
5999 		goto dealloc;
6000 	}
6001 
6002 	sfp = dma_alloc_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6003 	    &sfp_dma, GFP_KERNEL);
6004 
6005 	stat = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stat),
6006 	    &stat_dma, GFP_KERNEL);
6007 
6008 	/* Prepare Response IOCB */
6009 	rsp_els->entry_type = ELS_IOCB_TYPE;
6010 	rsp_els->entry_count = 1;
6011 	rsp_els->sys_define = 0;
6012 	rsp_els->entry_status = 0;
6013 	rsp_els->handle = 0;
6014 	rsp_els->nport_handle = purex->nport_handle;
6015 	rsp_els->tx_dsd_count = cpu_to_le16(1);
6016 	rsp_els->vp_index = purex->vp_idx;
6017 	rsp_els->sof_type = EST_SOFI3;
6018 	rsp_els->rx_xchg_address = purex->rx_xchg_addr;
6019 	rsp_els->rx_dsd_count = 0;
6020 	rsp_els->opcode = purex->els_frame_payload[0];
6021 
6022 	rsp_els->d_id[0] = purex->s_id[0];
6023 	rsp_els->d_id[1] = purex->s_id[1];
6024 	rsp_els->d_id[2] = purex->s_id[2];
6025 
6026 	rsp_els->control_flags = cpu_to_le16(EPD_ELS_ACC);
6027 	rsp_els->rx_byte_count = 0;
6028 	rsp_els->tx_byte_count = cpu_to_le32(rsp_payload_length);
6029 
6030 	put_unaligned_le64(rsp_payload_dma, &rsp_els->tx_address);
6031 	rsp_els->tx_len = rsp_els->tx_byte_count;
6032 
6033 	rsp_els->rx_address = 0;
6034 	rsp_els->rx_len = 0;
6035 
6036 	/* Prepare Response Payload */
6037 	rsp_payload->hdr.cmd = cpu_to_be32(0x2 << 24); /* LS_ACC */
6038 	rsp_payload->hdr.len = cpu_to_be32(le32_to_cpu(rsp_els->tx_byte_count) -
6039 					   sizeof(rsp_payload->hdr));
6040 
6041 	/* Link service Request Info Descriptor */
6042 	rsp_payload->ls_req_info_desc.desc_tag = cpu_to_be32(0x1);
6043 	rsp_payload->ls_req_info_desc.desc_len =
6044 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc));
6045 	rsp_payload->ls_req_info_desc.req_payload_word_0 =
6046 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6047 
6048 	/* Link service Request Info Descriptor 2 */
6049 	rsp_payload->ls_req_info_desc2.desc_tag = cpu_to_be32(0x1);
6050 	rsp_payload->ls_req_info_desc2.desc_len =
6051 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc2));
6052 	rsp_payload->ls_req_info_desc2.req_payload_word_0 =
6053 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6054 
6055 
6056 	rsp_payload->sfp_diag_desc.desc_tag = cpu_to_be32(0x10000);
6057 	rsp_payload->sfp_diag_desc.desc_len =
6058 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->sfp_diag_desc));
6059 
6060 	if (sfp) {
6061 		/* SFP Flags */
6062 		memset(sfp, 0, SFP_RTDI_LEN);
6063 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x7, 2, 0);
6064 		if (!rval) {
6065 			/* SFP Flags bits 3-0: Port Tx Laser Type */
6066 			if (sfp[0] & BIT_2 || sfp[1] & (BIT_6|BIT_5))
6067 				sfp_flags |= BIT_0; /* short wave */
6068 			else if (sfp[0] & BIT_1)
6069 				sfp_flags |= BIT_1; /* long wave 1310nm */
6070 			else if (sfp[1] & BIT_4)
6071 				sfp_flags |= BIT_1|BIT_0; /* long wave 1550nm */
6072 		}
6073 
6074 		/* SFP Type */
6075 		memset(sfp, 0, SFP_RTDI_LEN);
6076 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x0, 1, 0);
6077 		if (!rval) {
6078 			sfp_flags |= BIT_4; /* optical */
6079 			if (sfp[0] == 0x3)
6080 				sfp_flags |= BIT_6; /* sfp+ */
6081 		}
6082 
6083 		rsp_payload->sfp_diag_desc.sfp_flags = cpu_to_be16(sfp_flags);
6084 
6085 		/* SFP Diagnostics */
6086 		memset(sfp, 0, SFP_RTDI_LEN);
6087 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0x60, 10, 0);
6088 		if (!rval) {
6089 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6090 			rsp_payload->sfp_diag_desc.temperature = trx[0];
6091 			rsp_payload->sfp_diag_desc.vcc = trx[1];
6092 			rsp_payload->sfp_diag_desc.tx_bias = trx[2];
6093 			rsp_payload->sfp_diag_desc.tx_power = trx[3];
6094 			rsp_payload->sfp_diag_desc.rx_power = trx[4];
6095 		}
6096 	}
6097 
6098 	/* Port Speed Descriptor */
6099 	rsp_payload->port_speed_desc.desc_tag = cpu_to_be32(0x10001);
6100 	rsp_payload->port_speed_desc.desc_len =
6101 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_speed_desc));
6102 	rsp_payload->port_speed_desc.speed_capab = cpu_to_be16(
6103 	    qla25xx_fdmi_port_speed_capability(ha));
6104 	rsp_payload->port_speed_desc.operating_speed = cpu_to_be16(
6105 	    qla25xx_fdmi_port_speed_currently(ha));
6106 
6107 	/* Link Error Status Descriptor */
6108 	rsp_payload->ls_err_desc.desc_tag = cpu_to_be32(0x10002);
6109 	rsp_payload->ls_err_desc.desc_len =
6110 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_err_desc));
6111 
6112 	if (stat) {
6113 		rval = qla24xx_get_isp_stats(vha, stat, stat_dma, 0);
6114 		if (!rval) {
6115 			rsp_payload->ls_err_desc.link_fail_cnt =
6116 			    cpu_to_be32(le32_to_cpu(stat->link_fail_cnt));
6117 			rsp_payload->ls_err_desc.loss_sync_cnt =
6118 			    cpu_to_be32(le32_to_cpu(stat->loss_sync_cnt));
6119 			rsp_payload->ls_err_desc.loss_sig_cnt =
6120 			    cpu_to_be32(le32_to_cpu(stat->loss_sig_cnt));
6121 			rsp_payload->ls_err_desc.prim_seq_err_cnt =
6122 			    cpu_to_be32(le32_to_cpu(stat->prim_seq_err_cnt));
6123 			rsp_payload->ls_err_desc.inval_xmit_word_cnt =
6124 			    cpu_to_be32(le32_to_cpu(stat->inval_xmit_word_cnt));
6125 			rsp_payload->ls_err_desc.inval_crc_cnt =
6126 			    cpu_to_be32(le32_to_cpu(stat->inval_crc_cnt));
6127 			rsp_payload->ls_err_desc.pn_port_phy_type |= BIT_6;
6128 		}
6129 	}
6130 
6131 	/* Portname Descriptor */
6132 	rsp_payload->port_name_diag_desc.desc_tag = cpu_to_be32(0x10003);
6133 	rsp_payload->port_name_diag_desc.desc_len =
6134 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_diag_desc));
6135 	memcpy(rsp_payload->port_name_diag_desc.WWNN,
6136 	    vha->node_name,
6137 	    sizeof(rsp_payload->port_name_diag_desc.WWNN));
6138 	memcpy(rsp_payload->port_name_diag_desc.WWPN,
6139 	    vha->port_name,
6140 	    sizeof(rsp_payload->port_name_diag_desc.WWPN));
6141 
6142 	/* F-Port Portname Descriptor */
6143 	rsp_payload->port_name_direct_desc.desc_tag = cpu_to_be32(0x10003);
6144 	rsp_payload->port_name_direct_desc.desc_len =
6145 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_direct_desc));
6146 	memcpy(rsp_payload->port_name_direct_desc.WWNN,
6147 	    vha->fabric_node_name,
6148 	    sizeof(rsp_payload->port_name_direct_desc.WWNN));
6149 	memcpy(rsp_payload->port_name_direct_desc.WWPN,
6150 	    vha->fabric_port_name,
6151 	    sizeof(rsp_payload->port_name_direct_desc.WWPN));
6152 
6153 	/* Bufer Credit Descriptor */
6154 	rsp_payload->buffer_credit_desc.desc_tag = cpu_to_be32(0x10006);
6155 	rsp_payload->buffer_credit_desc.desc_len =
6156 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->buffer_credit_desc));
6157 	rsp_payload->buffer_credit_desc.fcport_b2b = 0;
6158 	rsp_payload->buffer_credit_desc.attached_fcport_b2b = cpu_to_be32(0);
6159 	rsp_payload->buffer_credit_desc.fcport_rtt = cpu_to_be32(0);
6160 
6161 	if (ha->flags.plogi_template_valid) {
6162 		uint32_t tmp =
6163 		be16_to_cpu(ha->plogi_els_payld.fl_csp.sp_bb_cred);
6164 		rsp_payload->buffer_credit_desc.fcport_b2b = cpu_to_be32(tmp);
6165 	}
6166 
6167 	if (rsp_payload_length < sizeof(*rsp_payload))
6168 		goto send;
6169 
6170 	/* Optical Element Descriptor, Temperature */
6171 	rsp_payload->optical_elmt_desc[0].desc_tag = cpu_to_be32(0x10007);
6172 	rsp_payload->optical_elmt_desc[0].desc_len =
6173 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6174 	/* Optical Element Descriptor, Voltage */
6175 	rsp_payload->optical_elmt_desc[1].desc_tag = cpu_to_be32(0x10007);
6176 	rsp_payload->optical_elmt_desc[1].desc_len =
6177 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6178 	/* Optical Element Descriptor, Tx Bias Current */
6179 	rsp_payload->optical_elmt_desc[2].desc_tag = cpu_to_be32(0x10007);
6180 	rsp_payload->optical_elmt_desc[2].desc_len =
6181 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6182 	/* Optical Element Descriptor, Tx Power */
6183 	rsp_payload->optical_elmt_desc[3].desc_tag = cpu_to_be32(0x10007);
6184 	rsp_payload->optical_elmt_desc[3].desc_len =
6185 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6186 	/* Optical Element Descriptor, Rx Power */
6187 	rsp_payload->optical_elmt_desc[4].desc_tag = cpu_to_be32(0x10007);
6188 	rsp_payload->optical_elmt_desc[4].desc_len =
6189 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6190 
6191 	if (sfp) {
6192 		memset(sfp, 0, SFP_RTDI_LEN);
6193 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0, 64, 0);
6194 		if (!rval) {
6195 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6196 
6197 			/* Optical Element Descriptor, Temperature */
6198 			rsp_payload->optical_elmt_desc[0].high_alarm = trx[0];
6199 			rsp_payload->optical_elmt_desc[0].low_alarm = trx[1];
6200 			rsp_payload->optical_elmt_desc[0].high_warn = trx[2];
6201 			rsp_payload->optical_elmt_desc[0].low_warn = trx[3];
6202 			rsp_payload->optical_elmt_desc[0].element_flags =
6203 			    cpu_to_be32(1 << 28);
6204 
6205 			/* Optical Element Descriptor, Voltage */
6206 			rsp_payload->optical_elmt_desc[1].high_alarm = trx[4];
6207 			rsp_payload->optical_elmt_desc[1].low_alarm = trx[5];
6208 			rsp_payload->optical_elmt_desc[1].high_warn = trx[6];
6209 			rsp_payload->optical_elmt_desc[1].low_warn = trx[7];
6210 			rsp_payload->optical_elmt_desc[1].element_flags =
6211 			    cpu_to_be32(2 << 28);
6212 
6213 			/* Optical Element Descriptor, Tx Bias Current */
6214 			rsp_payload->optical_elmt_desc[2].high_alarm = trx[8];
6215 			rsp_payload->optical_elmt_desc[2].low_alarm = trx[9];
6216 			rsp_payload->optical_elmt_desc[2].high_warn = trx[10];
6217 			rsp_payload->optical_elmt_desc[2].low_warn = trx[11];
6218 			rsp_payload->optical_elmt_desc[2].element_flags =
6219 			    cpu_to_be32(3 << 28);
6220 
6221 			/* Optical Element Descriptor, Tx Power */
6222 			rsp_payload->optical_elmt_desc[3].high_alarm = trx[12];
6223 			rsp_payload->optical_elmt_desc[3].low_alarm = trx[13];
6224 			rsp_payload->optical_elmt_desc[3].high_warn = trx[14];
6225 			rsp_payload->optical_elmt_desc[3].low_warn = trx[15];
6226 			rsp_payload->optical_elmt_desc[3].element_flags =
6227 			    cpu_to_be32(4 << 28);
6228 
6229 			/* Optical Element Descriptor, Rx Power */
6230 			rsp_payload->optical_elmt_desc[4].high_alarm = trx[16];
6231 			rsp_payload->optical_elmt_desc[4].low_alarm = trx[17];
6232 			rsp_payload->optical_elmt_desc[4].high_warn = trx[18];
6233 			rsp_payload->optical_elmt_desc[4].low_warn = trx[19];
6234 			rsp_payload->optical_elmt_desc[4].element_flags =
6235 			    cpu_to_be32(5 << 28);
6236 		}
6237 
6238 		memset(sfp, 0, SFP_RTDI_LEN);
6239 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 112, 64, 0);
6240 		if (!rval) {
6241 			/* Temperature high/low alarm/warning */
6242 			rsp_payload->optical_elmt_desc[0].element_flags |=
6243 			    cpu_to_be32(
6244 				(sfp[0] >> 7 & 1) << 3 |
6245 				(sfp[0] >> 6 & 1) << 2 |
6246 				(sfp[4] >> 7 & 1) << 1 |
6247 				(sfp[4] >> 6 & 1) << 0);
6248 
6249 			/* Voltage high/low alarm/warning */
6250 			rsp_payload->optical_elmt_desc[1].element_flags |=
6251 			    cpu_to_be32(
6252 				(sfp[0] >> 5 & 1) << 3 |
6253 				(sfp[0] >> 4 & 1) << 2 |
6254 				(sfp[4] >> 5 & 1) << 1 |
6255 				(sfp[4] >> 4 & 1) << 0);
6256 
6257 			/* Tx Bias Current high/low alarm/warning */
6258 			rsp_payload->optical_elmt_desc[2].element_flags |=
6259 			    cpu_to_be32(
6260 				(sfp[0] >> 3 & 1) << 3 |
6261 				(sfp[0] >> 2 & 1) << 2 |
6262 				(sfp[4] >> 3 & 1) << 1 |
6263 				(sfp[4] >> 2 & 1) << 0);
6264 
6265 			/* Tx Power high/low alarm/warning */
6266 			rsp_payload->optical_elmt_desc[3].element_flags |=
6267 			    cpu_to_be32(
6268 				(sfp[0] >> 1 & 1) << 3 |
6269 				(sfp[0] >> 0 & 1) << 2 |
6270 				(sfp[4] >> 1 & 1) << 1 |
6271 				(sfp[4] >> 0 & 1) << 0);
6272 
6273 			/* Rx Power high/low alarm/warning */
6274 			rsp_payload->optical_elmt_desc[4].element_flags |=
6275 			    cpu_to_be32(
6276 				(sfp[1] >> 7 & 1) << 3 |
6277 				(sfp[1] >> 6 & 1) << 2 |
6278 				(sfp[5] >> 7 & 1) << 1 |
6279 				(sfp[5] >> 6 & 1) << 0);
6280 		}
6281 	}
6282 
6283 	/* Optical Product Data Descriptor */
6284 	rsp_payload->optical_prod_desc.desc_tag = cpu_to_be32(0x10008);
6285 	rsp_payload->optical_prod_desc.desc_len =
6286 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->optical_prod_desc));
6287 
6288 	if (sfp) {
6289 		memset(sfp, 0, SFP_RTDI_LEN);
6290 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 20, 64, 0);
6291 		if (!rval) {
6292 			memcpy(rsp_payload->optical_prod_desc.vendor_name,
6293 			    sfp + 0,
6294 			    sizeof(rsp_payload->optical_prod_desc.vendor_name));
6295 			memcpy(rsp_payload->optical_prod_desc.part_number,
6296 			    sfp + 20,
6297 			    sizeof(rsp_payload->optical_prod_desc.part_number));
6298 			memcpy(rsp_payload->optical_prod_desc.revision,
6299 			    sfp + 36,
6300 			    sizeof(rsp_payload->optical_prod_desc.revision));
6301 			memcpy(rsp_payload->optical_prod_desc.serial_number,
6302 			    sfp + 48,
6303 			    sizeof(rsp_payload->optical_prod_desc.serial_number));
6304 		}
6305 
6306 		memset(sfp, 0, SFP_RTDI_LEN);
6307 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 84, 8, 0);
6308 		if (!rval) {
6309 			memcpy(rsp_payload->optical_prod_desc.date,
6310 			    sfp + 0,
6311 			    sizeof(rsp_payload->optical_prod_desc.date));
6312 		}
6313 	}
6314 
6315 send:
6316 	ql_dbg(ql_dbg_init, vha, 0x0183,
6317 	    "Sending ELS Response to RDP Request...\n");
6318 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0184,
6319 	    "-------- ELS RSP -------\n");
6320 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0185,
6321 	    rsp_els, sizeof(*rsp_els));
6322 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0186,
6323 	    "-------- ELS RSP PAYLOAD -------\n");
6324 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0187,
6325 	    rsp_payload, rsp_payload_length);
6326 
6327 	rval = qla2x00_issue_iocb(vha, rsp_els, rsp_els_dma, 0);
6328 
6329 	if (rval) {
6330 		ql_log(ql_log_warn, vha, 0x0188,
6331 		    "%s: iocb failed to execute -> %x\n", __func__, rval);
6332 	} else if (rsp_els->comp_status) {
6333 		ql_log(ql_log_warn, vha, 0x0189,
6334 		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
6335 		    __func__, rsp_els->comp_status,
6336 		    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
6337 	} else {
6338 		ql_dbg(ql_dbg_init, vha, 0x018a, "%s: done.\n", __func__);
6339 	}
6340 
6341 dealloc:
6342 	if (stat)
6343 		dma_free_coherent(&ha->pdev->dev, sizeof(*stat),
6344 		    stat, stat_dma);
6345 	if (sfp)
6346 		dma_free_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6347 		    sfp, sfp_dma);
6348 	if (rsp_payload)
6349 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6350 		    rsp_payload, rsp_payload_dma);
6351 	if (rsp_els)
6352 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6353 		    rsp_els, rsp_els_dma);
6354 }
6355 
6356 void
6357 qla24xx_free_purex_item(struct purex_item *item)
6358 {
6359 	if (item == &item->vha->default_item)
6360 		memset(&item->vha->default_item, 0, sizeof(struct purex_item));
6361 	else
6362 		kfree(item);
6363 }
6364 
6365 void qla24xx_process_purex_list(struct purex_list *list)
6366 {
6367 	struct list_head head = LIST_HEAD_INIT(head);
6368 	struct purex_item *item, *next;
6369 	ulong flags;
6370 
6371 	spin_lock_irqsave(&list->lock, flags);
6372 	list_splice_init(&list->head, &head);
6373 	spin_unlock_irqrestore(&list->lock, flags);
6374 
6375 	list_for_each_entry_safe(item, next, &head, list) {
6376 		list_del(&item->list);
6377 		item->process_item(item->vha, item);
6378 		qla24xx_free_purex_item(item);
6379 	}
6380 }
6381 
6382 /*
6383  * Context: task, can sleep
6384  */
6385 void
6386 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
6387 {
6388 #if 0
6389 	uint16_t options = (requester_id << 15) | BIT_7;
6390 #endif
6391 	uint16_t retry;
6392 	uint32_t data;
6393 	struct qla_hw_data *ha = base_vha->hw;
6394 
6395 	might_sleep();
6396 
6397 	/* IDC-unlock implementation using driver-unlock/lock-id
6398 	 * remote registers
6399 	 */
6400 	retry = 0;
6401 retry_unlock:
6402 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
6403 	    == QLA_SUCCESS) {
6404 		if (data == ha->portnum) {
6405 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
6406 			/* Clearing lock-id by setting 0xff */
6407 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
6408 		} else if (retry < 10) {
6409 			/* SV: XXX: IDC unlock retrying needed here? */
6410 
6411 			/* Retry for IDC-unlock */
6412 			msleep(QLA83XX_WAIT_LOGIC_MS);
6413 			retry++;
6414 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
6415 			    "Failed to release IDC lock, retrying=%d\n", retry);
6416 			goto retry_unlock;
6417 		}
6418 	} else if (retry < 10) {
6419 		/* Retry for IDC-unlock */
6420 		msleep(QLA83XX_WAIT_LOGIC_MS);
6421 		retry++;
6422 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
6423 		    "Failed to read drv-lockid, retrying=%d\n", retry);
6424 		goto retry_unlock;
6425 	}
6426 
6427 	return;
6428 
6429 #if 0
6430 	/* XXX: IDC-unlock implementation using access-control mbx */
6431 	retry = 0;
6432 retry_unlock2:
6433 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
6434 		if (retry < 10) {
6435 			/* Retry for IDC-unlock */
6436 			msleep(QLA83XX_WAIT_LOGIC_MS);
6437 			retry++;
6438 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
6439 			    "Failed to release IDC lock, retrying=%d\n", retry);
6440 			goto retry_unlock2;
6441 		}
6442 	}
6443 
6444 	return;
6445 #endif
6446 }
6447 
6448 int
6449 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6450 {
6451 	int rval = QLA_SUCCESS;
6452 	struct qla_hw_data *ha = vha->hw;
6453 	uint32_t drv_presence;
6454 
6455 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6456 	if (rval == QLA_SUCCESS) {
6457 		drv_presence |= (1 << ha->portnum);
6458 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6459 		    drv_presence);
6460 	}
6461 
6462 	return rval;
6463 }
6464 
6465 int
6466 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6467 {
6468 	int rval = QLA_SUCCESS;
6469 
6470 	qla83xx_idc_lock(vha, 0);
6471 	rval = __qla83xx_set_drv_presence(vha);
6472 	qla83xx_idc_unlock(vha, 0);
6473 
6474 	return rval;
6475 }
6476 
6477 int
6478 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6479 {
6480 	int rval = QLA_SUCCESS;
6481 	struct qla_hw_data *ha = vha->hw;
6482 	uint32_t drv_presence;
6483 
6484 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6485 	if (rval == QLA_SUCCESS) {
6486 		drv_presence &= ~(1 << ha->portnum);
6487 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6488 		    drv_presence);
6489 	}
6490 
6491 	return rval;
6492 }
6493 
6494 int
6495 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6496 {
6497 	int rval = QLA_SUCCESS;
6498 
6499 	qla83xx_idc_lock(vha, 0);
6500 	rval = __qla83xx_clear_drv_presence(vha);
6501 	qla83xx_idc_unlock(vha, 0);
6502 
6503 	return rval;
6504 }
6505 
6506 static void
6507 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
6508 {
6509 	struct qla_hw_data *ha = vha->hw;
6510 	uint32_t drv_ack, drv_presence;
6511 	unsigned long ack_timeout;
6512 
6513 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
6514 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
6515 	while (1) {
6516 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6517 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6518 		if ((drv_ack & drv_presence) == drv_presence)
6519 			break;
6520 
6521 		if (time_after_eq(jiffies, ack_timeout)) {
6522 			ql_log(ql_log_warn, vha, 0xb067,
6523 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
6524 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
6525 			/*
6526 			 * The function(s) which did not ack in time are forced
6527 			 * to withdraw any further participation in the IDC
6528 			 * reset.
6529 			 */
6530 			if (drv_ack != drv_presence)
6531 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6532 				    drv_ack);
6533 			break;
6534 		}
6535 
6536 		qla83xx_idc_unlock(vha, 0);
6537 		msleep(1000);
6538 		qla83xx_idc_lock(vha, 0);
6539 	}
6540 
6541 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
6542 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
6543 }
6544 
6545 static int
6546 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
6547 {
6548 	int rval = QLA_SUCCESS;
6549 	uint32_t idc_control;
6550 
6551 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
6552 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
6553 
6554 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
6555 	__qla83xx_get_idc_control(vha, &idc_control);
6556 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
6557 	__qla83xx_set_idc_control(vha, 0);
6558 
6559 	qla83xx_idc_unlock(vha, 0);
6560 	rval = qla83xx_restart_nic_firmware(vha);
6561 	qla83xx_idc_lock(vha, 0);
6562 
6563 	if (rval != QLA_SUCCESS) {
6564 		ql_log(ql_log_fatal, vha, 0xb06a,
6565 		    "Failed to restart NIC f/w.\n");
6566 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
6567 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
6568 	} else {
6569 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
6570 		    "Success in restarting nic f/w.\n");
6571 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
6572 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
6573 	}
6574 
6575 	return rval;
6576 }
6577 
6578 /* Assumes idc_lock always held on entry */
6579 int
6580 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
6581 {
6582 	struct qla_hw_data *ha = base_vha->hw;
6583 	int rval = QLA_SUCCESS;
6584 	unsigned long dev_init_timeout;
6585 	uint32_t dev_state;
6586 
6587 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
6588 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
6589 
6590 	while (1) {
6591 
6592 		if (time_after_eq(jiffies, dev_init_timeout)) {
6593 			ql_log(ql_log_warn, base_vha, 0xb06e,
6594 			    "Initialization TIMEOUT!\n");
6595 			/* Init timeout. Disable further NIC Core
6596 			 * communication.
6597 			 */
6598 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
6599 				QLA8XXX_DEV_FAILED);
6600 			ql_log(ql_log_info, base_vha, 0xb06f,
6601 			    "HW State: FAILED.\n");
6602 		}
6603 
6604 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6605 		switch (dev_state) {
6606 		case QLA8XXX_DEV_READY:
6607 			if (ha->flags.nic_core_reset_owner)
6608 				qla83xx_idc_audit(base_vha,
6609 				    IDC_AUDIT_COMPLETION);
6610 			ha->flags.nic_core_reset_owner = 0;
6611 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
6612 			    "Reset_owner reset by 0x%x.\n",
6613 			    ha->portnum);
6614 			goto exit;
6615 		case QLA8XXX_DEV_COLD:
6616 			if (ha->flags.nic_core_reset_owner)
6617 				rval = qla83xx_device_bootstrap(base_vha);
6618 			else {
6619 			/* Wait for AEN to change device-state */
6620 				qla83xx_idc_unlock(base_vha, 0);
6621 				msleep(1000);
6622 				qla83xx_idc_lock(base_vha, 0);
6623 			}
6624 			break;
6625 		case QLA8XXX_DEV_INITIALIZING:
6626 			/* Wait for AEN to change device-state */
6627 			qla83xx_idc_unlock(base_vha, 0);
6628 			msleep(1000);
6629 			qla83xx_idc_lock(base_vha, 0);
6630 			break;
6631 		case QLA8XXX_DEV_NEED_RESET:
6632 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
6633 				qla83xx_need_reset_handler(base_vha);
6634 			else {
6635 				/* Wait for AEN to change device-state */
6636 				qla83xx_idc_unlock(base_vha, 0);
6637 				msleep(1000);
6638 				qla83xx_idc_lock(base_vha, 0);
6639 			}
6640 			/* reset timeout value after need reset handler */
6641 			dev_init_timeout = jiffies +
6642 			    (ha->fcoe_dev_init_timeout * HZ);
6643 			break;
6644 		case QLA8XXX_DEV_NEED_QUIESCENT:
6645 			/* XXX: DEBUG for now */
6646 			qla83xx_idc_unlock(base_vha, 0);
6647 			msleep(1000);
6648 			qla83xx_idc_lock(base_vha, 0);
6649 			break;
6650 		case QLA8XXX_DEV_QUIESCENT:
6651 			/* XXX: DEBUG for now */
6652 			if (ha->flags.quiesce_owner)
6653 				goto exit;
6654 
6655 			qla83xx_idc_unlock(base_vha, 0);
6656 			msleep(1000);
6657 			qla83xx_idc_lock(base_vha, 0);
6658 			dev_init_timeout = jiffies +
6659 			    (ha->fcoe_dev_init_timeout * HZ);
6660 			break;
6661 		case QLA8XXX_DEV_FAILED:
6662 			if (ha->flags.nic_core_reset_owner)
6663 				qla83xx_idc_audit(base_vha,
6664 				    IDC_AUDIT_COMPLETION);
6665 			ha->flags.nic_core_reset_owner = 0;
6666 			__qla83xx_clear_drv_presence(base_vha);
6667 			qla83xx_idc_unlock(base_vha, 0);
6668 			qla8xxx_dev_failed_handler(base_vha);
6669 			rval = QLA_FUNCTION_FAILED;
6670 			qla83xx_idc_lock(base_vha, 0);
6671 			goto exit;
6672 		case QLA8XXX_BAD_VALUE:
6673 			qla83xx_idc_unlock(base_vha, 0);
6674 			msleep(1000);
6675 			qla83xx_idc_lock(base_vha, 0);
6676 			break;
6677 		default:
6678 			ql_log(ql_log_warn, base_vha, 0xb071,
6679 			    "Unknown Device State: %x.\n", dev_state);
6680 			qla83xx_idc_unlock(base_vha, 0);
6681 			qla8xxx_dev_failed_handler(base_vha);
6682 			rval = QLA_FUNCTION_FAILED;
6683 			qla83xx_idc_lock(base_vha, 0);
6684 			goto exit;
6685 		}
6686 	}
6687 
6688 exit:
6689 	return rval;
6690 }
6691 
6692 void
6693 qla2x00_disable_board_on_pci_error(struct work_struct *work)
6694 {
6695 	struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
6696 	    board_disable);
6697 	struct pci_dev *pdev = ha->pdev;
6698 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6699 
6700 	ql_log(ql_log_warn, base_vha, 0x015b,
6701 	    "Disabling adapter.\n");
6702 
6703 	if (!atomic_read(&pdev->enable_cnt)) {
6704 		ql_log(ql_log_info, base_vha, 0xfffc,
6705 		    "PCI device disabled, no action req for PCI error=%lx\n",
6706 		    base_vha->pci_flags);
6707 		return;
6708 	}
6709 
6710 	/*
6711 	 * if UNLOADING flag is already set, then continue unload,
6712 	 * where it was set first.
6713 	 */
6714 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
6715 		return;
6716 
6717 	qla2x00_wait_for_sess_deletion(base_vha);
6718 
6719 	qla2x00_delete_all_vps(ha, base_vha);
6720 
6721 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
6722 
6723 	qla2x00_dfs_remove(base_vha);
6724 
6725 	qla84xx_put_chip(base_vha);
6726 
6727 	if (base_vha->timer_active)
6728 		qla2x00_stop_timer(base_vha);
6729 
6730 	base_vha->flags.online = 0;
6731 
6732 	qla2x00_destroy_deferred_work(ha);
6733 
6734 	/*
6735 	 * Do not try to stop beacon blink as it will issue a mailbox
6736 	 * command.
6737 	 */
6738 	qla2x00_free_sysfs_attr(base_vha, false);
6739 
6740 	fc_remove_host(base_vha->host);
6741 
6742 	scsi_remove_host(base_vha->host);
6743 
6744 	base_vha->flags.init_done = 0;
6745 	qla25xx_delete_queues(base_vha);
6746 	qla2x00_free_fcports(base_vha);
6747 	qla2x00_free_irqs(base_vha);
6748 	qla2x00_mem_free(ha);
6749 	qla82xx_md_free(base_vha);
6750 	qla2x00_free_queues(ha);
6751 
6752 	qla2x00_unmap_iobases(ha);
6753 
6754 	pci_release_selected_regions(ha->pdev, ha->bars);
6755 	pci_disable_pcie_error_reporting(pdev);
6756 	pci_disable_device(pdev);
6757 
6758 	/*
6759 	 * Let qla2x00_remove_one cleanup qla_hw_data on device removal.
6760 	 */
6761 }
6762 
6763 /**************************************************************************
6764 * qla2x00_do_dpc
6765 *   This kernel thread is a task that is schedule by the interrupt handler
6766 *   to perform the background processing for interrupts.
6767 *
6768 * Notes:
6769 * This task always run in the context of a kernel thread.  It
6770 * is kick-off by the driver's detect code and starts up
6771 * up one per adapter. It immediately goes to sleep and waits for
6772 * some fibre event.  When either the interrupt handler or
6773 * the timer routine detects a event it will one of the task
6774 * bits then wake us up.
6775 **************************************************************************/
6776 static int
6777 qla2x00_do_dpc(void *data)
6778 {
6779 	scsi_qla_host_t *base_vha;
6780 	struct qla_hw_data *ha;
6781 	uint32_t online;
6782 	struct qla_qpair *qpair;
6783 
6784 	ha = (struct qla_hw_data *)data;
6785 	base_vha = pci_get_drvdata(ha->pdev);
6786 
6787 	set_user_nice(current, MIN_NICE);
6788 
6789 	set_current_state(TASK_INTERRUPTIBLE);
6790 	while (!kthread_should_stop()) {
6791 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
6792 		    "DPC handler sleeping.\n");
6793 
6794 		schedule();
6795 
6796 		if (test_and_clear_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags))
6797 			qla_pci_set_eeh_busy(base_vha);
6798 
6799 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
6800 			goto end_loop;
6801 
6802 		if (ha->flags.eeh_busy) {
6803 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
6804 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
6805 			goto end_loop;
6806 		}
6807 
6808 		ha->dpc_active = 1;
6809 
6810 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
6811 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
6812 		    base_vha->dpc_flags);
6813 
6814 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
6815 			break;
6816 
6817 		if (IS_P3P_TYPE(ha)) {
6818 			if (IS_QLA8044(ha)) {
6819 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6820 					&base_vha->dpc_flags)) {
6821 					qla8044_idc_lock(ha);
6822 					qla8044_wr_direct(base_vha,
6823 						QLA8044_CRB_DEV_STATE_INDEX,
6824 						QLA8XXX_DEV_FAILED);
6825 					qla8044_idc_unlock(ha);
6826 					ql_log(ql_log_info, base_vha, 0x4004,
6827 						"HW State: FAILED.\n");
6828 					qla8044_device_state_handler(base_vha);
6829 					continue;
6830 				}
6831 
6832 			} else {
6833 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6834 					&base_vha->dpc_flags)) {
6835 					qla82xx_idc_lock(ha);
6836 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6837 						QLA8XXX_DEV_FAILED);
6838 					qla82xx_idc_unlock(ha);
6839 					ql_log(ql_log_info, base_vha, 0x0151,
6840 						"HW State: FAILED.\n");
6841 					qla82xx_device_state_handler(base_vha);
6842 					continue;
6843 				}
6844 			}
6845 
6846 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
6847 				&base_vha->dpc_flags)) {
6848 
6849 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
6850 				    "FCoE context reset scheduled.\n");
6851 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
6852 					&base_vha->dpc_flags))) {
6853 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
6854 						/* FCoE-ctx reset failed.
6855 						 * Escalate to chip-reset
6856 						 */
6857 						set_bit(ISP_ABORT_NEEDED,
6858 							&base_vha->dpc_flags);
6859 					}
6860 					clear_bit(ABORT_ISP_ACTIVE,
6861 						&base_vha->dpc_flags);
6862 				}
6863 
6864 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
6865 				    "FCoE context reset end.\n");
6866 			}
6867 		} else if (IS_QLAFX00(ha)) {
6868 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
6869 				&base_vha->dpc_flags)) {
6870 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
6871 				    "Firmware Reset Recovery\n");
6872 				if (qlafx00_reset_initialize(base_vha)) {
6873 					/* Failed. Abort isp later. */
6874 					if (!test_bit(UNLOADING,
6875 					    &base_vha->dpc_flags)) {
6876 						set_bit(ISP_UNRECOVERABLE,
6877 						    &base_vha->dpc_flags);
6878 						ql_dbg(ql_dbg_dpc, base_vha,
6879 						    0x4021,
6880 						    "Reset Recovery Failed\n");
6881 					}
6882 				}
6883 			}
6884 
6885 			if (test_and_clear_bit(FX00_TARGET_SCAN,
6886 				&base_vha->dpc_flags)) {
6887 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
6888 				    "ISPFx00 Target Scan scheduled\n");
6889 				if (qlafx00_rescan_isp(base_vha)) {
6890 					if (!test_bit(UNLOADING,
6891 					    &base_vha->dpc_flags))
6892 						set_bit(ISP_UNRECOVERABLE,
6893 						    &base_vha->dpc_flags);
6894 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
6895 					    "ISPFx00 Target Scan Failed\n");
6896 				}
6897 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
6898 				    "ISPFx00 Target Scan End\n");
6899 			}
6900 			if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
6901 				&base_vha->dpc_flags)) {
6902 				ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
6903 				    "ISPFx00 Host Info resend scheduled\n");
6904 				qlafx00_fx_disc(base_vha,
6905 				    &base_vha->hw->mr.fcport,
6906 				    FXDISC_REG_HOST_INFO);
6907 			}
6908 		}
6909 
6910 		if (test_and_clear_bit(DETECT_SFP_CHANGE,
6911 		    &base_vha->dpc_flags)) {
6912 			/* Semantic:
6913 			 *  - NO-OP -- await next ISP-ABORT. Preferred method
6914 			 *             to minimize disruptions that will occur
6915 			 *             when a forced chip-reset occurs.
6916 			 *  - Force -- ISP-ABORT scheduled.
6917 			 */
6918 			/* set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); */
6919 		}
6920 
6921 		if (test_and_clear_bit
6922 		    (ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
6923 		    !test_bit(UNLOADING, &base_vha->dpc_flags)) {
6924 			bool do_reset = true;
6925 
6926 			switch (base_vha->qlini_mode) {
6927 			case QLA2XXX_INI_MODE_ENABLED:
6928 				break;
6929 			case QLA2XXX_INI_MODE_DISABLED:
6930 				if (!qla_tgt_mode_enabled(base_vha) &&
6931 				    !ha->flags.fw_started)
6932 					do_reset = false;
6933 				break;
6934 			case QLA2XXX_INI_MODE_DUAL:
6935 				if (!qla_dual_mode_enabled(base_vha) &&
6936 				    !ha->flags.fw_started)
6937 					do_reset = false;
6938 				break;
6939 			default:
6940 				break;
6941 			}
6942 
6943 			if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
6944 			    &base_vha->dpc_flags))) {
6945 				base_vha->flags.online = 1;
6946 				ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
6947 				    "ISP abort scheduled.\n");
6948 				if (ha->isp_ops->abort_isp(base_vha)) {
6949 					/* failed. retry later */
6950 					set_bit(ISP_ABORT_NEEDED,
6951 					    &base_vha->dpc_flags);
6952 				}
6953 				clear_bit(ABORT_ISP_ACTIVE,
6954 						&base_vha->dpc_flags);
6955 				ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
6956 				    "ISP abort end.\n");
6957 			}
6958 		}
6959 
6960 		if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags)) {
6961 			if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
6962 				qla24xx_process_purex_list
6963 					(&base_vha->purex_list);
6964 				clear_bit(PROCESS_PUREX_IOCB,
6965 				    &base_vha->dpc_flags);
6966 			}
6967 		}
6968 
6969 		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
6970 		    &base_vha->dpc_flags)) {
6971 			qla2x00_update_fcports(base_vha);
6972 		}
6973 
6974 		if (IS_QLAFX00(ha))
6975 			goto loop_resync_check;
6976 
6977 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
6978 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
6979 			    "Quiescence mode scheduled.\n");
6980 			if (IS_P3P_TYPE(ha)) {
6981 				if (IS_QLA82XX(ha))
6982 					qla82xx_device_state_handler(base_vha);
6983 				if (IS_QLA8044(ha))
6984 					qla8044_device_state_handler(base_vha);
6985 				clear_bit(ISP_QUIESCE_NEEDED,
6986 				    &base_vha->dpc_flags);
6987 				if (!ha->flags.quiesce_owner) {
6988 					qla2x00_perform_loop_resync(base_vha);
6989 					if (IS_QLA82XX(ha)) {
6990 						qla82xx_idc_lock(ha);
6991 						qla82xx_clear_qsnt_ready(
6992 						    base_vha);
6993 						qla82xx_idc_unlock(ha);
6994 					} else if (IS_QLA8044(ha)) {
6995 						qla8044_idc_lock(ha);
6996 						qla8044_clear_qsnt_ready(
6997 						    base_vha);
6998 						qla8044_idc_unlock(ha);
6999 					}
7000 				}
7001 			} else {
7002 				clear_bit(ISP_QUIESCE_NEEDED,
7003 				    &base_vha->dpc_flags);
7004 				qla2x00_quiesce_io(base_vha);
7005 			}
7006 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
7007 			    "Quiescence mode end.\n");
7008 		}
7009 
7010 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
7011 				&base_vha->dpc_flags) &&
7012 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
7013 
7014 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
7015 			    "Reset marker scheduled.\n");
7016 			qla2x00_rst_aen(base_vha);
7017 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
7018 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
7019 			    "Reset marker end.\n");
7020 		}
7021 
7022 		/* Retry each device up to login retry count */
7023 		if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
7024 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
7025 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
7026 
7027 			if (!base_vha->relogin_jif ||
7028 			    time_after_eq(jiffies, base_vha->relogin_jif)) {
7029 				base_vha->relogin_jif = jiffies + HZ;
7030 				clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
7031 
7032 				ql_dbg(ql_dbg_disc, base_vha, 0x400d,
7033 				    "Relogin scheduled.\n");
7034 				qla24xx_post_relogin_work(base_vha);
7035 			}
7036 		}
7037 loop_resync_check:
7038 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
7039 		    &base_vha->dpc_flags)) {
7040 
7041 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
7042 			    "Loop resync scheduled.\n");
7043 
7044 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
7045 			    &base_vha->dpc_flags))) {
7046 
7047 				qla2x00_loop_resync(base_vha);
7048 
7049 				clear_bit(LOOP_RESYNC_ACTIVE,
7050 						&base_vha->dpc_flags);
7051 			}
7052 
7053 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
7054 			    "Loop resync end.\n");
7055 		}
7056 
7057 		if (IS_QLAFX00(ha))
7058 			goto intr_on_check;
7059 
7060 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
7061 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
7062 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
7063 			qla2xxx_flash_npiv_conf(base_vha);
7064 		}
7065 
7066 intr_on_check:
7067 		if (!ha->interrupts_on)
7068 			ha->isp_ops->enable_intrs(ha);
7069 
7070 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
7071 					&base_vha->dpc_flags)) {
7072 			if (ha->beacon_blink_led == 1)
7073 				ha->isp_ops->beacon_blink(base_vha);
7074 		}
7075 
7076 		/* qpair online check */
7077 		if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
7078 		    &base_vha->dpc_flags)) {
7079 			if (ha->flags.eeh_busy ||
7080 			    ha->flags.pci_channel_io_perm_failure)
7081 				online = 0;
7082 			else
7083 				online = 1;
7084 
7085 			mutex_lock(&ha->mq_lock);
7086 			list_for_each_entry(qpair, &base_vha->qp_list,
7087 			    qp_list_elem)
7088 			qpair->online = online;
7089 			mutex_unlock(&ha->mq_lock);
7090 		}
7091 
7092 		if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
7093 				       &base_vha->dpc_flags)) {
7094 			u16 threshold = ha->nvme_last_rptd_aen + ha->last_zio_threshold;
7095 
7096 			if (threshold > ha->orig_fw_xcb_count)
7097 				threshold = ha->orig_fw_xcb_count;
7098 
7099 			ql_log(ql_log_info, base_vha, 0xffffff,
7100 			       "SET ZIO Activity exchange threshold to %d.\n",
7101 			       threshold);
7102 			if (qla27xx_set_zio_threshold(base_vha, threshold)) {
7103 				ql_log(ql_log_info, base_vha, 0xffffff,
7104 				       "Unable to SET ZIO Activity exchange threshold to %d.\n",
7105 				       threshold);
7106 			}
7107 		}
7108 
7109 		if (!IS_QLAFX00(ha))
7110 			qla2x00_do_dpc_all_vps(base_vha);
7111 
7112 		if (test_and_clear_bit(N2N_LINK_RESET,
7113 			&base_vha->dpc_flags)) {
7114 			qla2x00_lip_reset(base_vha);
7115 		}
7116 
7117 		if (test_bit(HEARTBEAT_CHK, &base_vha->dpc_flags)) {
7118 			/*
7119 			 * if there is a mb in progress then that's
7120 			 * enough of a check to see if fw is still ticking.
7121 			 */
7122 			if (!ha->flags.mbox_busy && base_vha->flags.init_done)
7123 				qla_no_op_mb(base_vha);
7124 
7125 			clear_bit(HEARTBEAT_CHK, &base_vha->dpc_flags);
7126 		}
7127 
7128 		ha->dpc_active = 0;
7129 end_loop:
7130 		set_current_state(TASK_INTERRUPTIBLE);
7131 	} /* End of while(1) */
7132 	__set_current_state(TASK_RUNNING);
7133 
7134 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
7135 	    "DPC handler exiting.\n");
7136 
7137 	/*
7138 	 * Make sure that nobody tries to wake us up again.
7139 	 */
7140 	ha->dpc_active = 0;
7141 
7142 	/* Cleanup any residual CTX SRBs. */
7143 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
7144 
7145 	return 0;
7146 }
7147 
7148 void
7149 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
7150 {
7151 	struct qla_hw_data *ha = vha->hw;
7152 	struct task_struct *t = ha->dpc_thread;
7153 
7154 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
7155 		wake_up_process(t);
7156 }
7157 
7158 /*
7159 *  qla2x00_rst_aen
7160 *      Processes asynchronous reset.
7161 *
7162 * Input:
7163 *      ha  = adapter block pointer.
7164 */
7165 static void
7166 qla2x00_rst_aen(scsi_qla_host_t *vha)
7167 {
7168 	if (vha->flags.online && !vha->flags.reset_active &&
7169 	    !atomic_read(&vha->loop_down_timer) &&
7170 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
7171 		do {
7172 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7173 
7174 			/*
7175 			 * Issue marker command only when we are going to start
7176 			 * the I/O.
7177 			 */
7178 			vha->marker_needed = 1;
7179 		} while (!atomic_read(&vha->loop_down_timer) &&
7180 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
7181 	}
7182 }
7183 
7184 static bool qla_do_heartbeat(struct scsi_qla_host *vha)
7185 {
7186 	u64 cmd_cnt, prev_cmd_cnt;
7187 	bool do_hb = false;
7188 	struct qla_hw_data *ha = vha->hw;
7189 	int i;
7190 
7191 	/* if cmds are still pending down in fw, then do hb */
7192 	if (ha->base_qpair->cmd_cnt != ha->base_qpair->cmd_completion_cnt) {
7193 		do_hb = true;
7194 		goto skip;
7195 	}
7196 
7197 	for (i = 0; i < ha->max_qpairs; i++) {
7198 		if (ha->queue_pair_map[i] &&
7199 		    ha->queue_pair_map[i]->cmd_cnt !=
7200 		    ha->queue_pair_map[i]->cmd_completion_cnt) {
7201 			do_hb = true;
7202 			break;
7203 		}
7204 	}
7205 
7206 skip:
7207 	prev_cmd_cnt = ha->prev_cmd_cnt;
7208 	cmd_cnt = ha->base_qpair->cmd_cnt;
7209 	for (i = 0; i < ha->max_qpairs; i++) {
7210 		if (ha->queue_pair_map[i])
7211 			cmd_cnt += ha->queue_pair_map[i]->cmd_cnt;
7212 	}
7213 	ha->prev_cmd_cnt = cmd_cnt;
7214 
7215 	if (!do_hb && ((cmd_cnt - prev_cmd_cnt) > 50))
7216 		/*
7217 		 * IOs are completing before periodic hb check.
7218 		 * IOs seems to be running, do hb for sanity check.
7219 		 */
7220 		do_hb = true;
7221 
7222 	return do_hb;
7223 }
7224 
7225 static void qla_heart_beat(struct scsi_qla_host *vha)
7226 {
7227 	if (vha->vp_idx)
7228 		return;
7229 
7230 	if (vha->hw->flags.eeh_busy || qla2x00_chip_is_down(vha))
7231 		return;
7232 
7233 	if (qla_do_heartbeat(vha)) {
7234 		set_bit(HEARTBEAT_CHK, &vha->dpc_flags);
7235 		qla2xxx_wake_dpc(vha);
7236 	}
7237 }
7238 
7239 /**************************************************************************
7240 *   qla2x00_timer
7241 *
7242 * Description:
7243 *   One second timer
7244 *
7245 * Context: Interrupt
7246 ***************************************************************************/
7247 void
7248 qla2x00_timer(struct timer_list *t)
7249 {
7250 	scsi_qla_host_t *vha = from_timer(vha, t, timer);
7251 	unsigned long	cpu_flags = 0;
7252 	int		start_dpc = 0;
7253 	int		index;
7254 	srb_t		*sp;
7255 	uint16_t        w;
7256 	struct qla_hw_data *ha = vha->hw;
7257 	struct req_que *req;
7258 	unsigned long flags;
7259 	fc_port_t *fcport = NULL;
7260 
7261 	if (ha->flags.eeh_busy) {
7262 		ql_dbg(ql_dbg_timer, vha, 0x6000,
7263 		    "EEH = %d, restarting timer.\n",
7264 		    ha->flags.eeh_busy);
7265 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
7266 		return;
7267 	}
7268 
7269 	/*
7270 	 * Hardware read to raise pending EEH errors during mailbox waits. If
7271 	 * the read returns -1 then disable the board.
7272 	 */
7273 	if (!pci_channel_offline(ha->pdev)) {
7274 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
7275 		qla2x00_check_reg16_for_disconnect(vha, w);
7276 	}
7277 
7278 	/* Make sure qla82xx_watchdog is run only for physical port */
7279 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
7280 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
7281 			start_dpc++;
7282 		if (IS_QLA82XX(ha))
7283 			qla82xx_watchdog(vha);
7284 		else if (IS_QLA8044(ha))
7285 			qla8044_watchdog(vha);
7286 	}
7287 
7288 	if (!vha->vp_idx && IS_QLAFX00(ha))
7289 		qlafx00_timer_routine(vha);
7290 
7291 	if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7292 		vha->link_down_time++;
7293 
7294 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
7295 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
7296 		if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7297 			fcport->tgt_link_down_time++;
7298 	}
7299 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
7300 
7301 	/* Loop down handler. */
7302 	if (atomic_read(&vha->loop_down_timer) > 0 &&
7303 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
7304 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
7305 		&& vha->flags.online) {
7306 
7307 		if (atomic_read(&vha->loop_down_timer) ==
7308 		    vha->loop_down_abort_time) {
7309 
7310 			ql_log(ql_log_info, vha, 0x6008,
7311 			    "Loop down - aborting the queues before time expires.\n");
7312 
7313 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
7314 				atomic_set(&vha->loop_state, LOOP_DEAD);
7315 
7316 			/*
7317 			 * Schedule an ISP abort to return any FCP2-device
7318 			 * commands.
7319 			 */
7320 			/* NPIV - scan physical port only */
7321 			if (!vha->vp_idx) {
7322 				spin_lock_irqsave(&ha->hardware_lock,
7323 				    cpu_flags);
7324 				req = ha->req_q_map[0];
7325 				for (index = 1;
7326 				    index < req->num_outstanding_cmds;
7327 				    index++) {
7328 					fc_port_t *sfcp;
7329 
7330 					sp = req->outstanding_cmds[index];
7331 					if (!sp)
7332 						continue;
7333 					if (sp->cmd_type != TYPE_SRB)
7334 						continue;
7335 					if (sp->type != SRB_SCSI_CMD)
7336 						continue;
7337 					sfcp = sp->fcport;
7338 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
7339 						continue;
7340 
7341 					if (IS_QLA82XX(ha))
7342 						set_bit(FCOE_CTX_RESET_NEEDED,
7343 							&vha->dpc_flags);
7344 					else
7345 						set_bit(ISP_ABORT_NEEDED,
7346 							&vha->dpc_flags);
7347 					break;
7348 				}
7349 				spin_unlock_irqrestore(&ha->hardware_lock,
7350 								cpu_flags);
7351 			}
7352 			start_dpc++;
7353 		}
7354 
7355 		/* if the loop has been down for 4 minutes, reinit adapter */
7356 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
7357 			if (!(vha->device_flags & DFLG_NO_CABLE)) {
7358 				ql_log(ql_log_warn, vha, 0x6009,
7359 				    "Loop down - aborting ISP.\n");
7360 
7361 				if (IS_QLA82XX(ha))
7362 					set_bit(FCOE_CTX_RESET_NEEDED,
7363 						&vha->dpc_flags);
7364 				else
7365 					set_bit(ISP_ABORT_NEEDED,
7366 						&vha->dpc_flags);
7367 			}
7368 		}
7369 		ql_dbg(ql_dbg_timer, vha, 0x600a,
7370 		    "Loop down - seconds remaining %d.\n",
7371 		    atomic_read(&vha->loop_down_timer));
7372 	}
7373 	/* Check if beacon LED needs to be blinked for physical host only */
7374 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
7375 		/* There is no beacon_blink function for ISP82xx */
7376 		if (!IS_P3P_TYPE(ha)) {
7377 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
7378 			start_dpc++;
7379 		}
7380 	}
7381 
7382 	/* check if edif running */
7383 	if (vha->hw->flags.edif_enabled)
7384 		qla_edif_timer(vha);
7385 
7386 	/* Process any deferred work. */
7387 	if (!list_empty(&vha->work_list)) {
7388 		unsigned long flags;
7389 		bool q = false;
7390 
7391 		spin_lock_irqsave(&vha->work_lock, flags);
7392 		if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
7393 			q = true;
7394 		spin_unlock_irqrestore(&vha->work_lock, flags);
7395 		if (q)
7396 			queue_work(vha->hw->wq, &vha->iocb_work);
7397 	}
7398 
7399 	/*
7400 	 * FC-NVME
7401 	 * see if the active AEN count has changed from what was last reported.
7402 	 */
7403 	index = atomic_read(&ha->nvme_active_aen_cnt);
7404 	if (!vha->vp_idx &&
7405 	    (index != ha->nvme_last_rptd_aen) &&
7406 	    ha->zio_mode == QLA_ZIO_MODE_6 &&
7407 	    !ha->flags.host_shutting_down) {
7408 		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
7409 		ql_log(ql_log_info, vha, 0x3002,
7410 		    "nvme: Sched: Set ZIO exchange threshold to %d.\n",
7411 		    ha->nvme_last_rptd_aen);
7412 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7413 		start_dpc++;
7414 	}
7415 
7416 	if (!vha->vp_idx &&
7417 	    atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
7418 	    IS_ZIO_THRESHOLD_CAPABLE(ha)) {
7419 		ql_log(ql_log_info, vha, 0x3002,
7420 		    "Sched: Set ZIO exchange threshold to %d.\n",
7421 		    ha->last_zio_threshold);
7422 		ha->last_zio_threshold = atomic_read(&ha->zio_threshold);
7423 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7424 		start_dpc++;
7425 	}
7426 
7427 	/* Schedule the DPC routine if needed */
7428 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
7429 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
7430 	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
7431 	    start_dpc ||
7432 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
7433 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
7434 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
7435 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
7436 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
7437 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
7438 	    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags))) {
7439 		ql_dbg(ql_dbg_timer, vha, 0x600b,
7440 		    "isp_abort_needed=%d loop_resync_needed=%d "
7441 		    "fcport_update_needed=%d start_dpc=%d "
7442 		    "reset_marker_needed=%d",
7443 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
7444 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
7445 		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
7446 		    start_dpc,
7447 		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
7448 		ql_dbg(ql_dbg_timer, vha, 0x600c,
7449 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
7450 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
7451 		    "relogin_needed=%d, Process_purex_iocb=%d.\n",
7452 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
7453 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
7454 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
7455 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
7456 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
7457 		    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags));
7458 		qla2xxx_wake_dpc(vha);
7459 	}
7460 
7461 	qla_heart_beat(vha);
7462 
7463 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
7464 }
7465 
7466 /* Firmware interface routines. */
7467 
7468 #define FW_ISP21XX	0
7469 #define FW_ISP22XX	1
7470 #define FW_ISP2300	2
7471 #define FW_ISP2322	3
7472 #define FW_ISP24XX	4
7473 #define FW_ISP25XX	5
7474 #define FW_ISP81XX	6
7475 #define FW_ISP82XX	7
7476 #define FW_ISP2031	8
7477 #define FW_ISP8031	9
7478 #define FW_ISP27XX	10
7479 #define FW_ISP28XX	11
7480 
7481 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
7482 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
7483 #define FW_FILE_ISP2300	"ql2300_fw.bin"
7484 #define FW_FILE_ISP2322	"ql2322_fw.bin"
7485 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
7486 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
7487 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
7488 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
7489 #define FW_FILE_ISP2031	"ql2600_fw.bin"
7490 #define FW_FILE_ISP8031	"ql8300_fw.bin"
7491 #define FW_FILE_ISP27XX	"ql2700_fw.bin"
7492 #define FW_FILE_ISP28XX	"ql2800_fw.bin"
7493 
7494 
7495 static DEFINE_MUTEX(qla_fw_lock);
7496 
7497 static struct fw_blob qla_fw_blobs[] = {
7498 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
7499 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
7500 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
7501 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
7502 	{ .name = FW_FILE_ISP24XX, },
7503 	{ .name = FW_FILE_ISP25XX, },
7504 	{ .name = FW_FILE_ISP81XX, },
7505 	{ .name = FW_FILE_ISP82XX, },
7506 	{ .name = FW_FILE_ISP2031, },
7507 	{ .name = FW_FILE_ISP8031, },
7508 	{ .name = FW_FILE_ISP27XX, },
7509 	{ .name = FW_FILE_ISP28XX, },
7510 	{ .name = NULL, },
7511 };
7512 
7513 struct fw_blob *
7514 qla2x00_request_firmware(scsi_qla_host_t *vha)
7515 {
7516 	struct qla_hw_data *ha = vha->hw;
7517 	struct fw_blob *blob;
7518 
7519 	if (IS_QLA2100(ha)) {
7520 		blob = &qla_fw_blobs[FW_ISP21XX];
7521 	} else if (IS_QLA2200(ha)) {
7522 		blob = &qla_fw_blobs[FW_ISP22XX];
7523 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
7524 		blob = &qla_fw_blobs[FW_ISP2300];
7525 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
7526 		blob = &qla_fw_blobs[FW_ISP2322];
7527 	} else if (IS_QLA24XX_TYPE(ha)) {
7528 		blob = &qla_fw_blobs[FW_ISP24XX];
7529 	} else if (IS_QLA25XX(ha)) {
7530 		blob = &qla_fw_blobs[FW_ISP25XX];
7531 	} else if (IS_QLA81XX(ha)) {
7532 		blob = &qla_fw_blobs[FW_ISP81XX];
7533 	} else if (IS_QLA82XX(ha)) {
7534 		blob = &qla_fw_blobs[FW_ISP82XX];
7535 	} else if (IS_QLA2031(ha)) {
7536 		blob = &qla_fw_blobs[FW_ISP2031];
7537 	} else if (IS_QLA8031(ha)) {
7538 		blob = &qla_fw_blobs[FW_ISP8031];
7539 	} else if (IS_QLA27XX(ha)) {
7540 		blob = &qla_fw_blobs[FW_ISP27XX];
7541 	} else if (IS_QLA28XX(ha)) {
7542 		blob = &qla_fw_blobs[FW_ISP28XX];
7543 	} else {
7544 		return NULL;
7545 	}
7546 
7547 	if (!blob->name)
7548 		return NULL;
7549 
7550 	mutex_lock(&qla_fw_lock);
7551 	if (blob->fw)
7552 		goto out;
7553 
7554 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
7555 		ql_log(ql_log_warn, vha, 0x0063,
7556 		    "Failed to load firmware image (%s).\n", blob->name);
7557 		blob->fw = NULL;
7558 		blob = NULL;
7559 	}
7560 
7561 out:
7562 	mutex_unlock(&qla_fw_lock);
7563 	return blob;
7564 }
7565 
7566 static void
7567 qla2x00_release_firmware(void)
7568 {
7569 	struct fw_blob *blob;
7570 
7571 	mutex_lock(&qla_fw_lock);
7572 	for (blob = qla_fw_blobs; blob->name; blob++)
7573 		release_firmware(blob->fw);
7574 	mutex_unlock(&qla_fw_lock);
7575 }
7576 
7577 static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
7578 {
7579 	struct qla_hw_data *ha = vha->hw;
7580 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
7581 	struct qla_qpair *qpair = NULL;
7582 	struct scsi_qla_host *vp, *tvp;
7583 	fc_port_t *fcport;
7584 	int i;
7585 	unsigned long flags;
7586 
7587 	ql_dbg(ql_dbg_aer, vha, 0x9000,
7588 	       "%s\n", __func__);
7589 	ha->chip_reset++;
7590 
7591 	ha->base_qpair->chip_reset = ha->chip_reset;
7592 	for (i = 0; i < ha->max_qpairs; i++) {
7593 		if (ha->queue_pair_map[i])
7594 			ha->queue_pair_map[i]->chip_reset =
7595 			    ha->base_qpair->chip_reset;
7596 	}
7597 
7598 	/*
7599 	 * purge mailbox might take a while. Slot Reset/chip reset
7600 	 * will take care of the purge
7601 	 */
7602 
7603 	mutex_lock(&ha->mq_lock);
7604 	ha->base_qpair->online = 0;
7605 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7606 		qpair->online = 0;
7607 	wmb();
7608 	mutex_unlock(&ha->mq_lock);
7609 
7610 	qla2x00_mark_all_devices_lost(vha);
7611 
7612 	spin_lock_irqsave(&ha->vport_slock, flags);
7613 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7614 		atomic_inc(&vp->vref_count);
7615 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7616 		qla2x00_mark_all_devices_lost(vp);
7617 		spin_lock_irqsave(&ha->vport_slock, flags);
7618 		atomic_dec(&vp->vref_count);
7619 	}
7620 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7621 
7622 	/* Clear all async request states across all VPs. */
7623 	list_for_each_entry(fcport, &vha->vp_fcports, list)
7624 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7625 
7626 	spin_lock_irqsave(&ha->vport_slock, flags);
7627 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7628 		atomic_inc(&vp->vref_count);
7629 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7630 		list_for_each_entry(fcport, &vp->vp_fcports, list)
7631 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7632 		spin_lock_irqsave(&ha->vport_slock, flags);
7633 		atomic_dec(&vp->vref_count);
7634 	}
7635 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7636 }
7637 
7638 
7639 static pci_ers_result_t
7640 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7641 {
7642 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
7643 	struct qla_hw_data *ha = vha->hw;
7644 	pci_ers_result_t ret = PCI_ERS_RESULT_NEED_RESET;
7645 
7646 	ql_log(ql_log_warn, vha, 0x9000,
7647 	       "PCI error detected, state %x.\n", state);
7648 	ha->pci_error_state = QLA_PCI_ERR_DETECTED;
7649 
7650 	if (!atomic_read(&pdev->enable_cnt)) {
7651 		ql_log(ql_log_info, vha, 0xffff,
7652 			"PCI device is disabled,state %x\n", state);
7653 		ret = PCI_ERS_RESULT_NEED_RESET;
7654 		goto out;
7655 	}
7656 
7657 	switch (state) {
7658 	case pci_channel_io_normal:
7659 		ha->flags.eeh_busy = 0;
7660 		if (ql2xmqsupport || ql2xnvmeenable) {
7661 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7662 			qla2xxx_wake_dpc(vha);
7663 		}
7664 		ret = PCI_ERS_RESULT_CAN_RECOVER;
7665 		break;
7666 	case pci_channel_io_frozen:
7667 		qla_pci_set_eeh_busy(vha);
7668 		ret = PCI_ERS_RESULT_NEED_RESET;
7669 		break;
7670 	case pci_channel_io_perm_failure:
7671 		ha->flags.pci_channel_io_perm_failure = 1;
7672 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
7673 		if (ql2xmqsupport || ql2xnvmeenable) {
7674 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7675 			qla2xxx_wake_dpc(vha);
7676 		}
7677 		ret = PCI_ERS_RESULT_DISCONNECT;
7678 	}
7679 out:
7680 	ql_dbg(ql_dbg_aer, vha, 0x600d,
7681 	       "PCI error detected returning [%x].\n", ret);
7682 	return ret;
7683 }
7684 
7685 static pci_ers_result_t
7686 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
7687 {
7688 	int risc_paused = 0;
7689 	uint32_t stat;
7690 	unsigned long flags;
7691 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7692 	struct qla_hw_data *ha = base_vha->hw;
7693 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7694 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
7695 
7696 	ql_log(ql_log_warn, base_vha, 0x9000,
7697 	       "mmio enabled\n");
7698 
7699 	ha->pci_error_state = QLA_PCI_MMIO_ENABLED;
7700 	if (IS_QLA82XX(ha))
7701 		return PCI_ERS_RESULT_RECOVERED;
7702 
7703 	spin_lock_irqsave(&ha->hardware_lock, flags);
7704 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
7705 		stat = rd_reg_word(&reg->hccr);
7706 		if (stat & HCCR_RISC_PAUSE)
7707 			risc_paused = 1;
7708 	} else if (IS_QLA23XX(ha)) {
7709 		stat = rd_reg_dword(&reg->u.isp2300.host_status);
7710 		if (stat & HSR_RISC_PAUSED)
7711 			risc_paused = 1;
7712 	} else if (IS_FWI2_CAPABLE(ha)) {
7713 		stat = rd_reg_dword(&reg24->host_status);
7714 		if (stat & HSRX_RISC_PAUSED)
7715 			risc_paused = 1;
7716 	}
7717 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7718 
7719 	if (risc_paused) {
7720 		ql_log(ql_log_info, base_vha, 0x9003,
7721 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
7722 		qla2xxx_dump_fw(base_vha);
7723 	}
7724 	/* set PCI_ERS_RESULT_NEED_RESET to trigger call to qla2xxx_pci_slot_reset */
7725 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7726 	       "mmio enabled returning.\n");
7727 	return PCI_ERS_RESULT_NEED_RESET;
7728 }
7729 
7730 static pci_ers_result_t
7731 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
7732 {
7733 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
7734 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7735 	struct qla_hw_data *ha = base_vha->hw;
7736 	int rc;
7737 	struct qla_qpair *qpair = NULL;
7738 
7739 	ql_log(ql_log_warn, base_vha, 0x9004,
7740 	       "Slot Reset.\n");
7741 
7742 	ha->pci_error_state = QLA_PCI_SLOT_RESET;
7743 	/* Workaround: qla2xxx driver which access hardware earlier
7744 	 * needs error state to be pci_channel_io_online.
7745 	 * Otherwise mailbox command timesout.
7746 	 */
7747 	pdev->error_state = pci_channel_io_normal;
7748 
7749 	pci_restore_state(pdev);
7750 
7751 	/* pci_restore_state() clears the saved_state flag of the device
7752 	 * save restored state which resets saved_state flag
7753 	 */
7754 	pci_save_state(pdev);
7755 
7756 	if (ha->mem_only)
7757 		rc = pci_enable_device_mem(pdev);
7758 	else
7759 		rc = pci_enable_device(pdev);
7760 
7761 	if (rc) {
7762 		ql_log(ql_log_warn, base_vha, 0x9005,
7763 		    "Can't re-enable PCI device after reset.\n");
7764 		goto exit_slot_reset;
7765 	}
7766 
7767 
7768 	if (ha->isp_ops->pci_config(base_vha))
7769 		goto exit_slot_reset;
7770 
7771 	mutex_lock(&ha->mq_lock);
7772 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7773 		qpair->online = 1;
7774 	mutex_unlock(&ha->mq_lock);
7775 
7776 	ha->flags.eeh_busy = 0;
7777 	base_vha->flags.online = 1;
7778 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7779 	ha->isp_ops->abort_isp(base_vha);
7780 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7781 
7782 	if (qla2x00_isp_reg_stat(ha)) {
7783 		ha->flags.eeh_busy = 1;
7784 		qla_pci_error_cleanup(base_vha);
7785 		ql_log(ql_log_warn, base_vha, 0x9005,
7786 		       "Device unable to recover from PCI error.\n");
7787 	} else {
7788 		ret =  PCI_ERS_RESULT_RECOVERED;
7789 	}
7790 
7791 exit_slot_reset:
7792 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
7793 	    "Slot Reset returning %x.\n", ret);
7794 
7795 	return ret;
7796 }
7797 
7798 static void
7799 qla2xxx_pci_resume(struct pci_dev *pdev)
7800 {
7801 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7802 	struct qla_hw_data *ha = base_vha->hw;
7803 	int ret;
7804 
7805 	ql_log(ql_log_warn, base_vha, 0x900f,
7806 	       "Pci Resume.\n");
7807 
7808 
7809 	ret = qla2x00_wait_for_hba_online(base_vha);
7810 	if (ret != QLA_SUCCESS) {
7811 		ql_log(ql_log_fatal, base_vha, 0x9002,
7812 		    "The device failed to resume I/O from slot/link_reset.\n");
7813 	}
7814 	ha->pci_error_state = QLA_PCI_RESUME;
7815 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7816 	       "Pci Resume returning.\n");
7817 }
7818 
7819 void qla_pci_set_eeh_busy(struct scsi_qla_host *vha)
7820 {
7821 	struct qla_hw_data *ha = vha->hw;
7822 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7823 	bool do_cleanup = false;
7824 	unsigned long flags;
7825 
7826 	if (ha->flags.eeh_busy)
7827 		return;
7828 
7829 	spin_lock_irqsave(&base_vha->work_lock, flags);
7830 	if (!ha->flags.eeh_busy) {
7831 		ha->flags.eeh_busy = 1;
7832 		do_cleanup = true;
7833 	}
7834 	spin_unlock_irqrestore(&base_vha->work_lock, flags);
7835 
7836 	if (do_cleanup)
7837 		qla_pci_error_cleanup(base_vha);
7838 }
7839 
7840 /*
7841  * this routine will schedule a task to pause IO from interrupt context
7842  * if caller sees a PCIE error event (register read = 0xf's)
7843  */
7844 void qla_schedule_eeh_work(struct scsi_qla_host *vha)
7845 {
7846 	struct qla_hw_data *ha = vha->hw;
7847 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7848 
7849 	if (ha->flags.eeh_busy)
7850 		return;
7851 
7852 	set_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags);
7853 	qla2xxx_wake_dpc(base_vha);
7854 }
7855 
7856 static void
7857 qla_pci_reset_prepare(struct pci_dev *pdev)
7858 {
7859 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7860 	struct qla_hw_data *ha = base_vha->hw;
7861 	struct qla_qpair *qpair;
7862 
7863 	ql_log(ql_log_warn, base_vha, 0xffff,
7864 	    "%s.\n", __func__);
7865 
7866 	/*
7867 	 * PCI FLR/function reset is about to reset the
7868 	 * slot. Stop the chip to stop all DMA access.
7869 	 * It is assumed that pci_reset_done will be called
7870 	 * after FLR to resume Chip operation.
7871 	 */
7872 	ha->flags.eeh_busy = 1;
7873 	mutex_lock(&ha->mq_lock);
7874 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7875 		qpair->online = 0;
7876 	mutex_unlock(&ha->mq_lock);
7877 
7878 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7879 	qla2x00_abort_isp_cleanup(base_vha);
7880 	qla2x00_abort_all_cmds(base_vha, DID_RESET << 16);
7881 }
7882 
7883 static void
7884 qla_pci_reset_done(struct pci_dev *pdev)
7885 {
7886 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7887 	struct qla_hw_data *ha = base_vha->hw;
7888 	struct qla_qpair *qpair;
7889 
7890 	ql_log(ql_log_warn, base_vha, 0xffff,
7891 	    "%s.\n", __func__);
7892 
7893 	/*
7894 	 * FLR just completed by PCI layer. Resume adapter
7895 	 */
7896 	ha->flags.eeh_busy = 0;
7897 	mutex_lock(&ha->mq_lock);
7898 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7899 		qpair->online = 1;
7900 	mutex_unlock(&ha->mq_lock);
7901 
7902 	base_vha->flags.online = 1;
7903 	ha->isp_ops->abort_isp(base_vha);
7904 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7905 }
7906 
7907 static int qla2xxx_map_queues(struct Scsi_Host *shost)
7908 {
7909 	int rc;
7910 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
7911 	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
7912 
7913 	if (USER_CTRL_IRQ(vha->hw) || !vha->hw->mqiobase)
7914 		rc = blk_mq_map_queues(qmap);
7915 	else
7916 		rc = blk_mq_pci_map_queues(qmap, vha->hw->pdev, vha->irq_offset);
7917 	return rc;
7918 }
7919 
7920 struct scsi_host_template qla2xxx_driver_template = {
7921 	.module			= THIS_MODULE,
7922 	.name			= QLA2XXX_DRIVER_NAME,
7923 	.queuecommand		= qla2xxx_queuecommand,
7924 
7925 	.eh_timed_out		= fc_eh_timed_out,
7926 	.eh_abort_handler	= qla2xxx_eh_abort,
7927 	.eh_should_retry_cmd	= fc_eh_should_retry_cmd,
7928 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
7929 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
7930 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
7931 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
7932 
7933 	.slave_configure	= qla2xxx_slave_configure,
7934 
7935 	.slave_alloc		= qla2xxx_slave_alloc,
7936 	.slave_destroy		= qla2xxx_slave_destroy,
7937 	.scan_finished		= qla2xxx_scan_finished,
7938 	.scan_start		= qla2xxx_scan_start,
7939 	.change_queue_depth	= scsi_change_queue_depth,
7940 	.map_queues             = qla2xxx_map_queues,
7941 	.this_id		= -1,
7942 	.cmd_per_lun		= 3,
7943 	.sg_tablesize		= SG_ALL,
7944 
7945 	.max_sectors		= 0xFFFF,
7946 	.shost_attrs		= qla2x00_host_attrs,
7947 
7948 	.supported_mode		= MODE_INITIATOR,
7949 	.track_queue_depth	= 1,
7950 	.cmd_size		= sizeof(srb_t),
7951 };
7952 
7953 static const struct pci_error_handlers qla2xxx_err_handler = {
7954 	.error_detected = qla2xxx_pci_error_detected,
7955 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
7956 	.slot_reset = qla2xxx_pci_slot_reset,
7957 	.resume = qla2xxx_pci_resume,
7958 	.reset_prepare = qla_pci_reset_prepare,
7959 	.reset_done = qla_pci_reset_done,
7960 };
7961 
7962 static struct pci_device_id qla2xxx_pci_tbl[] = {
7963 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
7964 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
7965 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
7966 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
7967 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
7968 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
7969 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
7970 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
7971 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
7972 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
7973 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
7974 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
7975 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
7976 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
7977 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
7978 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
7979 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
7980 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
7981 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
7982 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
7983 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
7984 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
7985 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2061) },
7986 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2081) },
7987 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2281) },
7988 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2089) },
7989 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2289) },
7990 	{ 0 },
7991 };
7992 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
7993 
7994 static struct pci_driver qla2xxx_pci_driver = {
7995 	.name		= QLA2XXX_DRIVER_NAME,
7996 	.driver		= {
7997 		.owner		= THIS_MODULE,
7998 	},
7999 	.id_table	= qla2xxx_pci_tbl,
8000 	.probe		= qla2x00_probe_one,
8001 	.remove		= qla2x00_remove_one,
8002 	.shutdown	= qla2x00_shutdown,
8003 	.err_handler	= &qla2xxx_err_handler,
8004 };
8005 
8006 static const struct file_operations apidev_fops = {
8007 	.owner = THIS_MODULE,
8008 	.llseek = noop_llseek,
8009 };
8010 
8011 /**
8012  * qla2x00_module_init - Module initialization.
8013  **/
8014 static int __init
8015 qla2x00_module_init(void)
8016 {
8017 	int ret = 0;
8018 
8019 	BUILD_BUG_ON(sizeof(cmd_a64_entry_t) != 64);
8020 	BUILD_BUG_ON(sizeof(cmd_entry_t) != 64);
8021 	BUILD_BUG_ON(sizeof(cont_a64_entry_t) != 64);
8022 	BUILD_BUG_ON(sizeof(cont_entry_t) != 64);
8023 	BUILD_BUG_ON(sizeof(init_cb_t) != 96);
8024 	BUILD_BUG_ON(sizeof(mrk_entry_t) != 64);
8025 	BUILD_BUG_ON(sizeof(ms_iocb_entry_t) != 64);
8026 	BUILD_BUG_ON(sizeof(request_t) != 64);
8027 	BUILD_BUG_ON(sizeof(struct abort_entry_24xx) != 64);
8028 	BUILD_BUG_ON(sizeof(struct abort_iocb_entry_fx00) != 64);
8029 	BUILD_BUG_ON(sizeof(struct abts_entry_24xx) != 64);
8030 	BUILD_BUG_ON(sizeof(struct access_chip_84xx) != 64);
8031 	BUILD_BUG_ON(sizeof(struct access_chip_rsp_84xx) != 64);
8032 	BUILD_BUG_ON(sizeof(struct cmd_bidir) != 64);
8033 	BUILD_BUG_ON(sizeof(struct cmd_nvme) != 64);
8034 	BUILD_BUG_ON(sizeof(struct cmd_type_6) != 64);
8035 	BUILD_BUG_ON(sizeof(struct cmd_type_7) != 64);
8036 	BUILD_BUG_ON(sizeof(struct cmd_type_7_fx00) != 64);
8037 	BUILD_BUG_ON(sizeof(struct cmd_type_crc_2) != 64);
8038 	BUILD_BUG_ON(sizeof(struct ct_entry_24xx) != 64);
8039 	BUILD_BUG_ON(sizeof(struct ct_fdmi1_hba_attributes) != 2604);
8040 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_hba_attributes) != 4424);
8041 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_port_attributes) != 4164);
8042 	BUILD_BUG_ON(sizeof(struct ct_fdmi_hba_attr) != 260);
8043 	BUILD_BUG_ON(sizeof(struct ct_fdmi_port_attr) != 260);
8044 	BUILD_BUG_ON(sizeof(struct ct_rsp_hdr) != 16);
8045 	BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
8046 	BUILD_BUG_ON(sizeof(struct device_reg_24xx) != 256);
8047 	BUILD_BUG_ON(sizeof(struct device_reg_25xxmq) != 24);
8048 	BUILD_BUG_ON(sizeof(struct device_reg_2xxx) != 256);
8049 	BUILD_BUG_ON(sizeof(struct device_reg_82xx) != 1288);
8050 	BUILD_BUG_ON(sizeof(struct device_reg_fx00) != 216);
8051 	BUILD_BUG_ON(sizeof(struct els_entry_24xx) != 64);
8052 	BUILD_BUG_ON(sizeof(struct els_sts_entry_24xx) != 64);
8053 	BUILD_BUG_ON(sizeof(struct fxdisc_entry_fx00) != 64);
8054 	BUILD_BUG_ON(sizeof(struct imm_ntfy_from_isp) != 64);
8055 	BUILD_BUG_ON(sizeof(struct init_cb_24xx) != 128);
8056 	BUILD_BUG_ON(sizeof(struct init_cb_81xx) != 128);
8057 	BUILD_BUG_ON(sizeof(struct logio_entry_24xx) != 64);
8058 	BUILD_BUG_ON(sizeof(struct mbx_entry) != 64);
8059 	BUILD_BUG_ON(sizeof(struct mid_init_cb_24xx) != 5252);
8060 	BUILD_BUG_ON(sizeof(struct mrk_entry_24xx) != 64);
8061 	BUILD_BUG_ON(sizeof(struct nvram_24xx) != 512);
8062 	BUILD_BUG_ON(sizeof(struct nvram_81xx) != 512);
8063 	BUILD_BUG_ON(sizeof(struct pt_ls4_request) != 64);
8064 	BUILD_BUG_ON(sizeof(struct pt_ls4_rx_unsol) != 64);
8065 	BUILD_BUG_ON(sizeof(struct purex_entry_24xx) != 64);
8066 	BUILD_BUG_ON(sizeof(struct qla2100_fw_dump) != 123634);
8067 	BUILD_BUG_ON(sizeof(struct qla2300_fw_dump) != 136100);
8068 	BUILD_BUG_ON(sizeof(struct qla24xx_fw_dump) != 37976);
8069 	BUILD_BUG_ON(sizeof(struct qla25xx_fw_dump) != 39228);
8070 	BUILD_BUG_ON(sizeof(struct qla2xxx_fce_chain) != 52);
8071 	BUILD_BUG_ON(sizeof(struct qla2xxx_fw_dump) != 136172);
8072 	BUILD_BUG_ON(sizeof(struct qla2xxx_mq_chain) != 524);
8073 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_chain) != 8);
8074 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_header) != 12);
8075 	BUILD_BUG_ON(sizeof(struct qla2xxx_offld_chain) != 24);
8076 	BUILD_BUG_ON(sizeof(struct qla81xx_fw_dump) != 39420);
8077 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_data_desc) != 28);
8078 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_table_desc) != 32);
8079 	BUILD_BUG_ON(sizeof(struct qla83xx_fw_dump) != 51196);
8080 	BUILD_BUG_ON(sizeof(struct qla_fcp_prio_cfg) != FCP_PRIO_CFG_SIZE);
8081 	BUILD_BUG_ON(sizeof(struct qla_fdt_layout) != 128);
8082 	BUILD_BUG_ON(sizeof(struct qla_flt_header) != 8);
8083 	BUILD_BUG_ON(sizeof(struct qla_flt_region) != 16);
8084 	BUILD_BUG_ON(sizeof(struct qla_npiv_entry) != 24);
8085 	BUILD_BUG_ON(sizeof(struct qla_npiv_header) != 16);
8086 	BUILD_BUG_ON(sizeof(struct rdp_rsp_payload) != 336);
8087 	BUILD_BUG_ON(sizeof(struct sns_cmd_pkt) != 2064);
8088 	BUILD_BUG_ON(sizeof(struct sts_entry_24xx) != 64);
8089 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry) != 64);
8090 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry_fx00) != 64);
8091 	BUILD_BUG_ON(sizeof(struct verify_chip_entry_84xx) != 64);
8092 	BUILD_BUG_ON(sizeof(struct verify_chip_rsp_84xx) != 52);
8093 	BUILD_BUG_ON(sizeof(struct vf_evfp_entry_24xx) != 56);
8094 	BUILD_BUG_ON(sizeof(struct vp_config_entry_24xx) != 64);
8095 	BUILD_BUG_ON(sizeof(struct vp_ctrl_entry_24xx) != 64);
8096 	BUILD_BUG_ON(sizeof(struct vp_rpt_id_entry_24xx) != 64);
8097 	BUILD_BUG_ON(sizeof(sts21_entry_t) != 64);
8098 	BUILD_BUG_ON(sizeof(sts22_entry_t) != 64);
8099 	BUILD_BUG_ON(sizeof(sts_cont_entry_t) != 64);
8100 	BUILD_BUG_ON(sizeof(sts_entry_t) != 64);
8101 	BUILD_BUG_ON(sizeof(sw_info_t) != 32);
8102 	BUILD_BUG_ON(sizeof(target_id_t) != 2);
8103 
8104 	/* Allocate cache for SRBs. */
8105 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
8106 	    SLAB_HWCACHE_ALIGN, NULL);
8107 	if (srb_cachep == NULL) {
8108 		ql_log(ql_log_fatal, NULL, 0x0001,
8109 		    "Unable to allocate SRB cache...Failing load!.\n");
8110 		return -ENOMEM;
8111 	}
8112 
8113 	/* Initialize target kmem_cache and mem_pools */
8114 	ret = qlt_init();
8115 	if (ret < 0) {
8116 		goto destroy_cache;
8117 	} else if (ret > 0) {
8118 		/*
8119 		 * If initiator mode is explictly disabled by qlt_init(),
8120 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
8121 		 * performing scsi_scan_target() during LOOP UP event.
8122 		 */
8123 		qla2xxx_transport_functions.disable_target_scan = 1;
8124 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
8125 	}
8126 
8127 	/* Derive version string. */
8128 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
8129 	if (ql2xextended_error_logging)
8130 		strcat(qla2x00_version_str, "-debug");
8131 	if (ql2xextended_error_logging == 1)
8132 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
8133 
8134 	if (ql2x_ini_mode == QLA2XXX_INI_MODE_DUAL)
8135 		qla_insert_tgt_attrs();
8136 
8137 	qla2xxx_transport_template =
8138 	    fc_attach_transport(&qla2xxx_transport_functions);
8139 	if (!qla2xxx_transport_template) {
8140 		ql_log(ql_log_fatal, NULL, 0x0002,
8141 		    "fc_attach_transport failed...Failing load!.\n");
8142 		ret = -ENODEV;
8143 		goto qlt_exit;
8144 	}
8145 
8146 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
8147 	if (apidev_major < 0) {
8148 		ql_log(ql_log_fatal, NULL, 0x0003,
8149 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
8150 	}
8151 
8152 	qla2xxx_transport_vport_template =
8153 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
8154 	if (!qla2xxx_transport_vport_template) {
8155 		ql_log(ql_log_fatal, NULL, 0x0004,
8156 		    "fc_attach_transport vport failed...Failing load!.\n");
8157 		ret = -ENODEV;
8158 		goto unreg_chrdev;
8159 	}
8160 	ql_log(ql_log_info, NULL, 0x0005,
8161 	    "QLogic Fibre Channel HBA Driver: %s.\n",
8162 	    qla2x00_version_str);
8163 	ret = pci_register_driver(&qla2xxx_pci_driver);
8164 	if (ret) {
8165 		ql_log(ql_log_fatal, NULL, 0x0006,
8166 		    "pci_register_driver failed...ret=%d Failing load!.\n",
8167 		    ret);
8168 		goto release_vport_transport;
8169 	}
8170 	return ret;
8171 
8172 release_vport_transport:
8173 	fc_release_transport(qla2xxx_transport_vport_template);
8174 
8175 unreg_chrdev:
8176 	if (apidev_major >= 0)
8177 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8178 	fc_release_transport(qla2xxx_transport_template);
8179 
8180 qlt_exit:
8181 	qlt_exit();
8182 
8183 destroy_cache:
8184 	kmem_cache_destroy(srb_cachep);
8185 	return ret;
8186 }
8187 
8188 /**
8189  * qla2x00_module_exit - Module cleanup.
8190  **/
8191 static void __exit
8192 qla2x00_module_exit(void)
8193 {
8194 	pci_unregister_driver(&qla2xxx_pci_driver);
8195 	qla2x00_release_firmware();
8196 	kmem_cache_destroy(ctx_cachep);
8197 	fc_release_transport(qla2xxx_transport_vport_template);
8198 	if (apidev_major >= 0)
8199 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8200 	fc_release_transport(qla2xxx_transport_template);
8201 	qlt_exit();
8202 	kmem_cache_destroy(srb_cachep);
8203 }
8204 
8205 module_init(qla2x00_module_init);
8206 module_exit(qla2x00_module_exit);
8207 
8208 MODULE_AUTHOR("QLogic Corporation");
8209 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
8210 MODULE_LICENSE("GPL");
8211 MODULE_FIRMWARE(FW_FILE_ISP21XX);
8212 MODULE_FIRMWARE(FW_FILE_ISP22XX);
8213 MODULE_FIRMWARE(FW_FILE_ISP2300);
8214 MODULE_FIRMWARE(FW_FILE_ISP2322);
8215 MODULE_FIRMWARE(FW_FILE_ISP24XX);
8216 MODULE_FIRMWARE(FW_FILE_ISP25XX);
8217