xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_os.c (revision f2d8e15b)
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 ql2xgffidenable;
206 module_param(ql2xgffidenable, int, S_IRUGO);
207 MODULE_PARM_DESC(ql2xgffidenable,
208 		"Enables GFF_ID checks of port type. "
209 		"Default is 0 - Do not use GFF_ID information.");
210 
211 int ql2xasynctmfenable = 1;
212 module_param(ql2xasynctmfenable, int, S_IRUGO);
213 MODULE_PARM_DESC(ql2xasynctmfenable,
214 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
215 		"Default is 1 - Issue TM IOCBs via mailbox mechanism.");
216 
217 int ql2xdontresethba;
218 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
219 MODULE_PARM_DESC(ql2xdontresethba,
220 		"Option to specify reset behaviour.\n"
221 		" 0 (Default) -- Reset on failure.\n"
222 		" 1 -- Do not reset on failure.\n");
223 
224 uint64_t ql2xmaxlun = MAX_LUNS;
225 module_param(ql2xmaxlun, ullong, S_IRUGO);
226 MODULE_PARM_DESC(ql2xmaxlun,
227 		"Defines the maximum LU number to register with the SCSI "
228 		"midlayer. Default is 65535.");
229 
230 int ql2xmdcapmask = 0x1F;
231 module_param(ql2xmdcapmask, int, S_IRUGO);
232 MODULE_PARM_DESC(ql2xmdcapmask,
233 		"Set the Minidump driver capture mask level. "
234 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
235 
236 int ql2xmdenable = 1;
237 module_param(ql2xmdenable, int, S_IRUGO);
238 MODULE_PARM_DESC(ql2xmdenable,
239 		"Enable/disable MiniDump. "
240 		"0 - MiniDump disabled. "
241 		"1 (Default) - MiniDump enabled.");
242 
243 int ql2xexlogins;
244 module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
245 MODULE_PARM_DESC(ql2xexlogins,
246 		 "Number of extended Logins. "
247 		 "0 (Default)- Disabled.");
248 
249 int ql2xexchoffld = 1024;
250 module_param(ql2xexchoffld, uint, 0644);
251 MODULE_PARM_DESC(ql2xexchoffld,
252 	"Number of target exchanges.");
253 
254 int ql2xiniexchg = 1024;
255 module_param(ql2xiniexchg, uint, 0644);
256 MODULE_PARM_DESC(ql2xiniexchg,
257 	"Number of initiator exchanges.");
258 
259 int ql2xfwholdabts;
260 module_param(ql2xfwholdabts, int, S_IRUGO);
261 MODULE_PARM_DESC(ql2xfwholdabts,
262 		"Allow FW to hold status IOCB until ABTS rsp received. "
263 		"0 (Default) Do not set fw option. "
264 		"1 - Set fw option to hold ABTS.");
265 
266 int ql2xmvasynctoatio = 1;
267 module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
268 MODULE_PARM_DESC(ql2xmvasynctoatio,
269 		"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
270 		"0 (Default). Do not move IOCBs"
271 		"1 - Move IOCBs.");
272 
273 int ql2xautodetectsfp = 1;
274 module_param(ql2xautodetectsfp, int, 0444);
275 MODULE_PARM_DESC(ql2xautodetectsfp,
276 		 "Detect SFP range and set appropriate distance.\n"
277 		 "1 (Default): Enable\n");
278 
279 int ql2xenablemsix = 1;
280 module_param(ql2xenablemsix, int, 0444);
281 MODULE_PARM_DESC(ql2xenablemsix,
282 		 "Set to enable MSI or MSI-X interrupt mechanism.\n"
283 		 " Default is 1, enable MSI-X interrupt mechanism.\n"
284 		 " 0 -- enable traditional pin-based mechanism.\n"
285 		 " 1 -- enable MSI-X interrupt mechanism.\n"
286 		 " 2 -- enable MSI interrupt mechanism.\n");
287 
288 int qla2xuseresexchforels;
289 module_param(qla2xuseresexchforels, int, 0444);
290 MODULE_PARM_DESC(qla2xuseresexchforels,
291 		 "Reserve 1/2 of emergency exchanges for ELS.\n"
292 		 " 0 (default): disabled");
293 
294 static int ql2xprotmask;
295 module_param(ql2xprotmask, int, 0644);
296 MODULE_PARM_DESC(ql2xprotmask,
297 		 "Override DIF/DIX protection capabilities mask\n"
298 		 "Default is 0 which sets protection mask based on "
299 		 "capabilities reported by HBA firmware.\n");
300 
301 static int ql2xprotguard;
302 module_param(ql2xprotguard, int, 0644);
303 MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
304 		 "  0 -- Let HBA firmware decide\n"
305 		 "  1 -- Force T10 CRC\n"
306 		 "  2 -- Force IP checksum\n");
307 
308 int ql2xdifbundlinginternalbuffers;
309 module_param(ql2xdifbundlinginternalbuffers, int, 0644);
310 MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
311     "Force using internal buffers for DIF information\n"
312     "0 (Default). Based on check.\n"
313     "1 Force using internal buffers\n");
314 
315 int ql2xsmartsan;
316 module_param(ql2xsmartsan, int, 0444);
317 module_param_named(smartsan, ql2xsmartsan, int, 0444);
318 MODULE_PARM_DESC(ql2xsmartsan,
319 		"Send SmartSAN Management Attributes for FDMI Registration."
320 		" Default is 0 - No SmartSAN registration,"
321 		" 1 - Register SmartSAN Management Attributes.");
322 
323 int ql2xrdpenable;
324 module_param(ql2xrdpenable, int, 0444);
325 module_param_named(rdpenable, ql2xrdpenable, int, 0444);
326 MODULE_PARM_DESC(ql2xrdpenable,
327 		"Enables RDP responses. "
328 		"0 - no RDP responses (default). "
329 		"1 - provide RDP responses.");
330 int ql2xabts_wait_nvme = 1;
331 module_param(ql2xabts_wait_nvme, int, 0444);
332 MODULE_PARM_DESC(ql2xabts_wait_nvme,
333 		 "To wait for ABTS response on I/O timeouts for NVMe. (default: 1)");
334 
335 
336 u32 ql2xdelay_before_pci_error_handling = 5;
337 module_param(ql2xdelay_before_pci_error_handling, uint, 0644);
338 MODULE_PARM_DESC(ql2xdelay_before_pci_error_handling,
339 	"Number of seconds delayed before qla begin PCI error self-handling (default: 5).\n");
340 
341 int ql2xrspq_follow_inptr = 1;
342 module_param(ql2xrspq_follow_inptr, int, 0644);
343 MODULE_PARM_DESC(ql2xrspq_follow_inptr,
344 		 "Follow RSP IN pointer for RSP updates for HBAs 27xx and newer (default: 1).");
345 
346 int ql2xrspq_follow_inptr_legacy = 1;
347 module_param(ql2xrspq_follow_inptr_legacy, int, 0644);
348 MODULE_PARM_DESC(ql2xrspq_follow_inptr_legacy,
349 		 "Follow RSP IN pointer for RSP updates for HBAs older than 27XX. (default: 1).");
350 
351 static void qla2x00_clear_drv_active(struct qla_hw_data *);
352 static void qla2x00_free_device(scsi_qla_host_t *);
353 static int qla2xxx_map_queues(struct Scsi_Host *shost);
354 static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
355 
356 u32 ql2xnvme_queues = DEF_NVME_HW_QUEUES;
357 module_param(ql2xnvme_queues, uint, S_IRUGO);
358 MODULE_PARM_DESC(ql2xnvme_queues,
359 	"Number of NVMe Queues that can be configured.\n"
360 	"Final value will be min(ql2xnvme_queues, num_cpus,num_chip_queues)\n"
361 	"1 - Minimum number of queues supported\n"
362 	"8 - Default value");
363 
364 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
365 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
366 
367 /* TODO Convert to inlines
368  *
369  * Timer routines
370  */
371 
372 __inline__ void
373 qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
374 {
375 	timer_setup(&vha->timer, qla2x00_timer, 0);
376 	vha->timer.expires = jiffies + interval * HZ;
377 	add_timer(&vha->timer);
378 	vha->timer_active = 1;
379 }
380 
381 static inline void
382 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
383 {
384 	/* Currently used for 82XX only. */
385 	if (vha->device_flags & DFLG_DEV_FAILED) {
386 		ql_dbg(ql_dbg_timer, vha, 0x600d,
387 		    "Device in a failed state, returning.\n");
388 		return;
389 	}
390 
391 	mod_timer(&vha->timer, jiffies + interval * HZ);
392 }
393 
394 static __inline__ void
395 qla2x00_stop_timer(scsi_qla_host_t *vha)
396 {
397 	del_timer_sync(&vha->timer);
398 	vha->timer_active = 0;
399 }
400 
401 static int qla2x00_do_dpc(void *data);
402 
403 static void qla2x00_rst_aen(scsi_qla_host_t *);
404 
405 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
406 	struct req_que **, struct rsp_que **);
407 static void qla2x00_free_fw_dump(struct qla_hw_data *);
408 static void qla2x00_mem_free(struct qla_hw_data *);
409 int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
410 	struct qla_qpair *qpair);
411 
412 /* -------------------------------------------------------------------------- */
413 static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
414     struct rsp_que *rsp)
415 {
416 	struct qla_hw_data *ha = vha->hw;
417 
418 	rsp->qpair = ha->base_qpair;
419 	rsp->req = req;
420 	ha->base_qpair->hw = ha;
421 	ha->base_qpair->req = req;
422 	ha->base_qpair->rsp = rsp;
423 	ha->base_qpair->vha = vha;
424 	ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
425 	ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
426 	ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
427 	ha->base_qpair->srb_mempool = ha->srb_mempool;
428 	INIT_LIST_HEAD(&ha->base_qpair->hints_list);
429 	ha->base_qpair->enable_class_2 = ql2xenableclass2;
430 	/* init qpair to this cpu. Will adjust at run time. */
431 	qla_cpu_update(rsp->qpair, raw_smp_processor_id());
432 	ha->base_qpair->pdev = ha->pdev;
433 
434 	if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
435 		ha->base_qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
436 }
437 
438 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
439 				struct rsp_que *rsp)
440 {
441 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
442 
443 	ha->req_q_map = kcalloc(ha->max_req_queues, sizeof(struct req_que *),
444 				GFP_KERNEL);
445 	if (!ha->req_q_map) {
446 		ql_log(ql_log_fatal, vha, 0x003b,
447 		    "Unable to allocate memory for request queue ptrs.\n");
448 		goto fail_req_map;
449 	}
450 
451 	ha->rsp_q_map = kcalloc(ha->max_rsp_queues, sizeof(struct rsp_que *),
452 				GFP_KERNEL);
453 	if (!ha->rsp_q_map) {
454 		ql_log(ql_log_fatal, vha, 0x003c,
455 		    "Unable to allocate memory for response queue ptrs.\n");
456 		goto fail_rsp_map;
457 	}
458 
459 	ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
460 	if (ha->base_qpair == NULL) {
461 		ql_log(ql_log_warn, vha, 0x00e0,
462 		    "Failed to allocate base queue pair memory.\n");
463 		goto fail_base_qpair;
464 	}
465 
466 	qla_init_base_qpair(vha, req, rsp);
467 
468 	if ((ql2xmqsupport || ql2xnvmeenable) && ha->max_qpairs) {
469 		ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
470 			GFP_KERNEL);
471 		if (!ha->queue_pair_map) {
472 			ql_log(ql_log_fatal, vha, 0x0180,
473 			    "Unable to allocate memory for queue pair ptrs.\n");
474 			goto fail_qpair_map;
475 		}
476 	}
477 
478 	/*
479 	 * Make sure we record at least the request and response queue zero in
480 	 * case we need to free them if part of the probe fails.
481 	 */
482 	ha->rsp_q_map[0] = rsp;
483 	ha->req_q_map[0] = req;
484 	set_bit(0, ha->rsp_qid_map);
485 	set_bit(0, ha->req_qid_map);
486 	return 0;
487 
488 fail_qpair_map:
489 	kfree(ha->base_qpair);
490 	ha->base_qpair = NULL;
491 fail_base_qpair:
492 	kfree(ha->rsp_q_map);
493 	ha->rsp_q_map = NULL;
494 fail_rsp_map:
495 	kfree(ha->req_q_map);
496 	ha->req_q_map = NULL;
497 fail_req_map:
498 	return -ENOMEM;
499 }
500 
501 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
502 {
503 	if (IS_QLAFX00(ha)) {
504 		if (req && req->ring_fx00)
505 			dma_free_coherent(&ha->pdev->dev,
506 			    (req->length_fx00 + 1) * sizeof(request_t),
507 			    req->ring_fx00, req->dma_fx00);
508 	} else if (req && req->ring)
509 		dma_free_coherent(&ha->pdev->dev,
510 		(req->length + 1) * sizeof(request_t),
511 		req->ring, req->dma);
512 
513 	if (req)
514 		kfree(req->outstanding_cmds);
515 
516 	kfree(req);
517 }
518 
519 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
520 {
521 	if (IS_QLAFX00(ha)) {
522 		if (rsp && rsp->ring_fx00)
523 			dma_free_coherent(&ha->pdev->dev,
524 			    (rsp->length_fx00 + 1) * sizeof(request_t),
525 			    rsp->ring_fx00, rsp->dma_fx00);
526 	} else if (rsp && rsp->ring) {
527 		dma_free_coherent(&ha->pdev->dev,
528 		(rsp->length + 1) * sizeof(response_t),
529 		rsp->ring, rsp->dma);
530 	}
531 	kfree(rsp);
532 }
533 
534 static void qla2x00_free_queues(struct qla_hw_data *ha)
535 {
536 	struct req_que *req;
537 	struct rsp_que *rsp;
538 	int cnt;
539 	unsigned long flags;
540 
541 	if (ha->queue_pair_map) {
542 		kfree(ha->queue_pair_map);
543 		ha->queue_pair_map = NULL;
544 	}
545 	if (ha->base_qpair) {
546 		kfree(ha->base_qpair);
547 		ha->base_qpair = NULL;
548 	}
549 
550 	spin_lock_irqsave(&ha->hardware_lock, flags);
551 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
552 		if (!test_bit(cnt, ha->req_qid_map))
553 			continue;
554 
555 		req = ha->req_q_map[cnt];
556 		clear_bit(cnt, ha->req_qid_map);
557 		ha->req_q_map[cnt] = NULL;
558 
559 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
560 		qla2x00_free_req_que(ha, req);
561 		spin_lock_irqsave(&ha->hardware_lock, flags);
562 	}
563 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
564 
565 	kfree(ha->req_q_map);
566 	ha->req_q_map = NULL;
567 
568 
569 	spin_lock_irqsave(&ha->hardware_lock, flags);
570 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
571 		if (!test_bit(cnt, ha->rsp_qid_map))
572 			continue;
573 
574 		rsp = ha->rsp_q_map[cnt];
575 		clear_bit(cnt, ha->rsp_qid_map);
576 		ha->rsp_q_map[cnt] =  NULL;
577 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
578 		qla2x00_free_rsp_que(ha, rsp);
579 		spin_lock_irqsave(&ha->hardware_lock, flags);
580 	}
581 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
582 
583 	kfree(ha->rsp_q_map);
584 	ha->rsp_q_map = NULL;
585 }
586 
587 static char *
588 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
589 {
590 	struct qla_hw_data *ha = vha->hw;
591 	static const char *const pci_bus_modes[] = {
592 		"33", "66", "100", "133",
593 	};
594 	uint16_t pci_bus;
595 
596 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
597 	if (pci_bus) {
598 		snprintf(str, str_len, "PCI-X (%s MHz)",
599 			 pci_bus_modes[pci_bus]);
600 	} else {
601 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
602 		snprintf(str, str_len, "PCI (%s MHz)", pci_bus_modes[pci_bus]);
603 	}
604 
605 	return str;
606 }
607 
608 static char *
609 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
610 {
611 	static const char *const pci_bus_modes[] = {
612 		"33", "66", "100", "133",
613 	};
614 	struct qla_hw_data *ha = vha->hw;
615 	uint32_t pci_bus;
616 
617 	if (pci_is_pcie(ha->pdev)) {
618 		uint32_t lstat, lspeed, lwidth;
619 		const char *speed_str;
620 
621 		pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
622 		lspeed = lstat & PCI_EXP_LNKCAP_SLS;
623 		lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
624 
625 		switch (lspeed) {
626 		case 1:
627 			speed_str = "2.5GT/s";
628 			break;
629 		case 2:
630 			speed_str = "5.0GT/s";
631 			break;
632 		case 3:
633 			speed_str = "8.0GT/s";
634 			break;
635 		case 4:
636 			speed_str = "16.0GT/s";
637 			break;
638 		default:
639 			speed_str = "<unknown>";
640 			break;
641 		}
642 		snprintf(str, str_len, "PCIe (%s x%d)", speed_str, lwidth);
643 
644 		return str;
645 	}
646 
647 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
648 	if (pci_bus == 0 || pci_bus == 8)
649 		snprintf(str, str_len, "PCI (%s MHz)",
650 			 pci_bus_modes[pci_bus >> 3]);
651 	else
652 		snprintf(str, str_len, "PCI-X Mode %d (%s MHz)",
653 			 pci_bus & 4 ? 2 : 1,
654 			 pci_bus_modes[pci_bus & 3]);
655 
656 	return str;
657 }
658 
659 static char *
660 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
661 {
662 	char un_str[10];
663 	struct qla_hw_data *ha = vha->hw;
664 
665 	snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
666 	    ha->fw_minor_version, ha->fw_subminor_version);
667 
668 	if (ha->fw_attributes & BIT_9) {
669 		strcat(str, "FLX");
670 		return (str);
671 	}
672 
673 	switch (ha->fw_attributes & 0xFF) {
674 	case 0x7:
675 		strcat(str, "EF");
676 		break;
677 	case 0x17:
678 		strcat(str, "TP");
679 		break;
680 	case 0x37:
681 		strcat(str, "IP");
682 		break;
683 	case 0x77:
684 		strcat(str, "VI");
685 		break;
686 	default:
687 		sprintf(un_str, "(%x)", ha->fw_attributes);
688 		strcat(str, un_str);
689 		break;
690 	}
691 	if (ha->fw_attributes & 0x100)
692 		strcat(str, "X");
693 
694 	return (str);
695 }
696 
697 static char *
698 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
699 {
700 	struct qla_hw_data *ha = vha->hw;
701 
702 	snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
703 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
704 	return str;
705 }
706 
707 void qla2x00_sp_free_dma(srb_t *sp)
708 {
709 	struct qla_hw_data *ha = sp->vha->hw;
710 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
711 
712 	if (sp->flags & SRB_DMA_VALID) {
713 		scsi_dma_unmap(cmd);
714 		sp->flags &= ~SRB_DMA_VALID;
715 	}
716 
717 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
718 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
719 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
720 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
721 	}
722 
723 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
724 		/* List assured to be having elements */
725 		qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
726 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
727 	}
728 
729 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
730 		struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
731 
732 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
733 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
734 	}
735 
736 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
737 		struct ct6_dsd *ctx1 = sp->u.scmd.ct6_ctx;
738 
739 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
740 		    ctx1->fcp_cmnd_dma);
741 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
742 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
743 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
744 		mempool_free(ctx1, ha->ctx_mempool);
745 	}
746 }
747 
748 void qla2x00_sp_compl(srb_t *sp, int res)
749 {
750 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
751 	struct completion *comp = sp->comp;
752 
753 	/* kref: INIT */
754 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
755 	cmd->result = res;
756 	sp->type = 0;
757 	scsi_done(cmd);
758 	if (comp)
759 		complete(comp);
760 }
761 
762 void qla2xxx_qpair_sp_free_dma(srb_t *sp)
763 {
764 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
765 	struct qla_hw_data *ha = sp->fcport->vha->hw;
766 
767 	if (sp->flags & SRB_DMA_VALID) {
768 		scsi_dma_unmap(cmd);
769 		sp->flags &= ~SRB_DMA_VALID;
770 	}
771 
772 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
773 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
774 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
775 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
776 	}
777 
778 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
779 		/* List assured to be having elements */
780 		qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
781 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
782 	}
783 
784 	if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
785 		struct crc_context *difctx = sp->u.scmd.crc_ctx;
786 		struct dsd_dma *dif_dsd, *nxt_dsd;
787 
788 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
789 		    &difctx->ldif_dma_hndl_list, list) {
790 			list_del(&dif_dsd->list);
791 			dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
792 			    dif_dsd->dsd_list_dma);
793 			kfree(dif_dsd);
794 			difctx->no_dif_bundl--;
795 		}
796 
797 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
798 		    &difctx->ldif_dsd_list, list) {
799 			list_del(&dif_dsd->list);
800 			dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
801 			    dif_dsd->dsd_list_dma);
802 			kfree(dif_dsd);
803 			difctx->no_ldif_dsd--;
804 		}
805 
806 		if (difctx->no_ldif_dsd) {
807 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
808 			    "%s: difctx->no_ldif_dsd=%x\n",
809 			    __func__, difctx->no_ldif_dsd);
810 		}
811 
812 		if (difctx->no_dif_bundl) {
813 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
814 			    "%s: difctx->no_dif_bundl=%x\n",
815 			    __func__, difctx->no_dif_bundl);
816 		}
817 		sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
818 	}
819 
820 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
821 		struct ct6_dsd *ctx1 = sp->u.scmd.ct6_ctx;
822 
823 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
824 		    ctx1->fcp_cmnd_dma);
825 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
826 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
827 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
828 		mempool_free(ctx1, ha->ctx_mempool);
829 		sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
830 	}
831 
832 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
833 		struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
834 
835 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
836 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
837 	}
838 }
839 
840 void qla2xxx_qpair_sp_compl(srb_t *sp, int res)
841 {
842 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
843 	struct completion *comp = sp->comp;
844 
845 	/* ref: INIT */
846 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
847 	cmd->result = res;
848 	sp->type = 0;
849 	scsi_done(cmd);
850 	if (comp)
851 		complete(comp);
852 }
853 
854 static int
855 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
856 {
857 	scsi_qla_host_t *vha = shost_priv(host);
858 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
859 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
860 	struct qla_hw_data *ha = vha->hw;
861 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
862 	srb_t *sp;
863 	int rval;
864 
865 	if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags)) ||
866 	    WARN_ON_ONCE(!rport)) {
867 		cmd->result = DID_NO_CONNECT << 16;
868 		goto qc24_fail_command;
869 	}
870 
871 	if (ha->mqenable) {
872 		uint32_t tag;
873 		uint16_t hwq;
874 		struct qla_qpair *qpair = NULL;
875 
876 		tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmd));
877 		hwq = blk_mq_unique_tag_to_hwq(tag);
878 		qpair = ha->queue_pair_map[hwq];
879 
880 		if (qpair)
881 			return qla2xxx_mqueuecommand(host, cmd, qpair);
882 	}
883 
884 	if (ha->flags.eeh_busy) {
885 		if (ha->flags.pci_channel_io_perm_failure) {
886 			ql_dbg(ql_dbg_aer, vha, 0x9010,
887 			    "PCI Channel IO permanent failure, exiting "
888 			    "cmd=%p.\n", cmd);
889 			cmd->result = DID_NO_CONNECT << 16;
890 		} else {
891 			ql_dbg(ql_dbg_aer, vha, 0x9011,
892 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
893 			cmd->result = DID_REQUEUE << 16;
894 		}
895 		goto qc24_fail_command;
896 	}
897 
898 	rval = fc_remote_port_chkready(rport);
899 	if (rval) {
900 		cmd->result = rval;
901 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
902 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
903 		    cmd, rval);
904 		goto qc24_fail_command;
905 	}
906 
907 	if (!vha->flags.difdix_supported &&
908 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
909 			ql_dbg(ql_dbg_io, vha, 0x3004,
910 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
911 			    cmd);
912 			cmd->result = DID_NO_CONNECT << 16;
913 			goto qc24_fail_command;
914 	}
915 
916 	if (!fcport || fcport->deleted) {
917 		cmd->result = DID_IMM_RETRY << 16;
918 		goto qc24_fail_command;
919 	}
920 
921 	if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
922 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
923 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
924 			ql_dbg(ql_dbg_io, vha, 0x3005,
925 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
926 			    atomic_read(&fcport->state),
927 			    atomic_read(&base_vha->loop_state));
928 			cmd->result = DID_NO_CONNECT << 16;
929 			goto qc24_fail_command;
930 		}
931 		goto qc24_target_busy;
932 	}
933 
934 	/*
935 	 * Return target busy if we've received a non-zero retry_delay_timer
936 	 * in a FCP_RSP.
937 	 */
938 	if (fcport->retry_delay_timestamp == 0) {
939 		/* retry delay not set */
940 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
941 		fcport->retry_delay_timestamp = 0;
942 	else
943 		goto qc24_target_busy;
944 
945 	sp = scsi_cmd_priv(cmd);
946 	/* ref: INIT */
947 	qla2xxx_init_sp(sp, vha, vha->hw->base_qpair, fcport);
948 
949 	sp->u.scmd.cmd = cmd;
950 	sp->type = SRB_SCSI_CMD;
951 	sp->free = qla2x00_sp_free_dma;
952 	sp->done = qla2x00_sp_compl;
953 
954 	rval = ha->isp_ops->start_scsi(sp);
955 	if (rval != QLA_SUCCESS) {
956 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
957 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
958 		goto qc24_host_busy_free_sp;
959 	}
960 
961 	return 0;
962 
963 qc24_host_busy_free_sp:
964 	/* ref: INIT */
965 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
966 
967 qc24_target_busy:
968 	return SCSI_MLQUEUE_TARGET_BUSY;
969 
970 qc24_fail_command:
971 	scsi_done(cmd);
972 
973 	return 0;
974 }
975 
976 /* For MQ supported I/O */
977 int
978 qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
979     struct qla_qpair *qpair)
980 {
981 	scsi_qla_host_t *vha = shost_priv(host);
982 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
983 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
984 	struct qla_hw_data *ha = vha->hw;
985 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
986 	srb_t *sp;
987 	int rval;
988 
989 	rval = rport ? fc_remote_port_chkready(rport) : (DID_NO_CONNECT << 16);
990 	if (rval) {
991 		cmd->result = rval;
992 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
993 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
994 		    cmd, rval);
995 		goto qc24_fail_command;
996 	}
997 
998 	if (!qpair->online) {
999 		ql_dbg(ql_dbg_io, vha, 0x3077,
1000 		       "qpair not online. eeh_busy=%d.\n", ha->flags.eeh_busy);
1001 		cmd->result = DID_NO_CONNECT << 16;
1002 		goto qc24_fail_command;
1003 	}
1004 
1005 	if (!fcport || fcport->deleted) {
1006 		cmd->result = DID_IMM_RETRY << 16;
1007 		goto qc24_fail_command;
1008 	}
1009 
1010 	if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
1011 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
1012 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
1013 			ql_dbg(ql_dbg_io, vha, 0x3077,
1014 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
1015 			    atomic_read(&fcport->state),
1016 			    atomic_read(&base_vha->loop_state));
1017 			cmd->result = DID_NO_CONNECT << 16;
1018 			goto qc24_fail_command;
1019 		}
1020 		goto qc24_target_busy;
1021 	}
1022 
1023 	/*
1024 	 * Return target busy if we've received a non-zero retry_delay_timer
1025 	 * in a FCP_RSP.
1026 	 */
1027 	if (fcport->retry_delay_timestamp == 0) {
1028 		/* retry delay not set */
1029 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
1030 		fcport->retry_delay_timestamp = 0;
1031 	else
1032 		goto qc24_target_busy;
1033 
1034 	sp = scsi_cmd_priv(cmd);
1035 	/* ref: INIT */
1036 	qla2xxx_init_sp(sp, vha, qpair, fcport);
1037 
1038 	sp->u.scmd.cmd = cmd;
1039 	sp->type = SRB_SCSI_CMD;
1040 	sp->free = qla2xxx_qpair_sp_free_dma;
1041 	sp->done = qla2xxx_qpair_sp_compl;
1042 
1043 	rval = ha->isp_ops->start_scsi_mq(sp);
1044 	if (rval != QLA_SUCCESS) {
1045 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
1046 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
1047 		goto qc24_host_busy_free_sp;
1048 	}
1049 
1050 	return 0;
1051 
1052 qc24_host_busy_free_sp:
1053 	/* ref: INIT */
1054 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1055 
1056 qc24_target_busy:
1057 	return SCSI_MLQUEUE_TARGET_BUSY;
1058 
1059 qc24_fail_command:
1060 	scsi_done(cmd);
1061 
1062 	return 0;
1063 }
1064 
1065 /*
1066  * qla2x00_eh_wait_on_command
1067  *    Waits for the command to be returned by the Firmware for some
1068  *    max time.
1069  *
1070  * Input:
1071  *    cmd = Scsi Command to wait on.
1072  *
1073  * Return:
1074  *    Completed in time : QLA_SUCCESS
1075  *    Did not complete in time : QLA_FUNCTION_FAILED
1076  */
1077 static int
1078 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
1079 {
1080 #define ABORT_POLLING_PERIOD	1000
1081 #define ABORT_WAIT_ITER		((2 * 1000) / (ABORT_POLLING_PERIOD))
1082 	unsigned long wait_iter = ABORT_WAIT_ITER;
1083 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1084 	struct qla_hw_data *ha = vha->hw;
1085 	srb_t *sp = scsi_cmd_priv(cmd);
1086 	int ret = QLA_SUCCESS;
1087 
1088 	if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
1089 		ql_dbg(ql_dbg_taskm, vha, 0x8005,
1090 		    "Return:eh_wait.\n");
1091 		return ret;
1092 	}
1093 
1094 	while (sp->type && wait_iter--)
1095 		msleep(ABORT_POLLING_PERIOD);
1096 	if (sp->type)
1097 		ret = QLA_FUNCTION_FAILED;
1098 
1099 	return ret;
1100 }
1101 
1102 /*
1103  * qla2x00_wait_for_hba_online
1104  *    Wait till the HBA is online after going through
1105  *    <= MAX_RETRIES_OF_ISP_ABORT  or
1106  *    finally HBA is disabled ie marked offline
1107  *
1108  * Input:
1109  *     ha - pointer to host adapter structure
1110  *
1111  * Note:
1112  *    Does context switching-Release SPIN_LOCK
1113  *    (if any) before calling this routine.
1114  *
1115  * Return:
1116  *    Success (Adapter is online) : 0
1117  *    Failed  (Adapter is offline/disabled) : 1
1118  */
1119 int
1120 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
1121 {
1122 	int		return_status;
1123 	unsigned long	wait_online;
1124 	struct qla_hw_data *ha = vha->hw;
1125 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1126 
1127 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1128 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1129 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1130 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1131 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
1132 
1133 		msleep(1000);
1134 	}
1135 	if (base_vha->flags.online)
1136 		return_status = QLA_SUCCESS;
1137 	else
1138 		return_status = QLA_FUNCTION_FAILED;
1139 
1140 	return (return_status);
1141 }
1142 
1143 static inline int test_fcport_count(scsi_qla_host_t *vha)
1144 {
1145 	struct qla_hw_data *ha = vha->hw;
1146 	unsigned long flags;
1147 	int res;
1148 	/* Return 0 = sleep, x=wake */
1149 
1150 	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1151 	ql_dbg(ql_dbg_init, vha, 0x00ec,
1152 	    "tgt %p, fcport_count=%d\n",
1153 	    vha, vha->fcport_count);
1154 	res = (vha->fcport_count == 0);
1155 	if  (res) {
1156 		struct fc_port *fcport;
1157 
1158 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1159 			if (fcport->deleted != QLA_SESS_DELETED) {
1160 				/* session(s) may not be fully logged in
1161 				 * (ie fcport_count=0), but session
1162 				 * deletion thread(s) may be inflight.
1163 				 */
1164 
1165 				res = 0;
1166 				break;
1167 			}
1168 		}
1169 	}
1170 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1171 
1172 	return res;
1173 }
1174 
1175 /*
1176  * qla2x00_wait_for_sess_deletion can only be called from remove_one.
1177  * it has dependency on UNLOADING flag to stop device discovery
1178  */
1179 void
1180 qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
1181 {
1182 	u8 i;
1183 
1184 	qla2x00_mark_all_devices_lost(vha);
1185 
1186 	for (i = 0; i < 10; i++) {
1187 		if (wait_event_timeout(vha->fcport_waitQ,
1188 		    test_fcport_count(vha), HZ) > 0)
1189 			break;
1190 	}
1191 
1192 	flush_workqueue(vha->hw->wq);
1193 }
1194 
1195 /*
1196  * qla2x00_wait_for_hba_ready
1197  * Wait till the HBA is ready before doing driver unload
1198  *
1199  * Input:
1200  *     ha - pointer to host adapter structure
1201  *
1202  * Note:
1203  *    Does context switching-Release SPIN_LOCK
1204  *    (if any) before calling this routine.
1205  *
1206  */
1207 static void
1208 qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
1209 {
1210 	struct qla_hw_data *ha = vha->hw;
1211 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1212 
1213 	while ((qla2x00_reset_active(vha) || ha->dpc_active ||
1214 		ha->flags.mbox_busy) ||
1215 	       test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
1216 	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
1217 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
1218 			break;
1219 		msleep(1000);
1220 	}
1221 }
1222 
1223 int
1224 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
1225 {
1226 	int		return_status;
1227 	unsigned long	wait_reset;
1228 	struct qla_hw_data *ha = vha->hw;
1229 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1230 
1231 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1232 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1233 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1234 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1235 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
1236 
1237 		msleep(1000);
1238 
1239 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
1240 		    ha->flags.chip_reset_done)
1241 			break;
1242 	}
1243 	if (ha->flags.chip_reset_done)
1244 		return_status = QLA_SUCCESS;
1245 	else
1246 		return_status = QLA_FUNCTION_FAILED;
1247 
1248 	return return_status;
1249 }
1250 
1251 /**************************************************************************
1252 * qla2xxx_eh_abort
1253 *
1254 * Description:
1255 *    The abort function will abort the specified command.
1256 *
1257 * Input:
1258 *    cmd = Linux SCSI command packet to be aborted.
1259 *
1260 * Returns:
1261 *    Either SUCCESS or FAILED.
1262 *
1263 * Note:
1264 *    Only return FAILED if command not returned by firmware.
1265 **************************************************************************/
1266 static int
1267 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
1268 {
1269 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1270 	DECLARE_COMPLETION_ONSTACK(comp);
1271 	srb_t *sp;
1272 	int ret;
1273 	unsigned int id;
1274 	uint64_t lun;
1275 	int rval;
1276 	struct qla_hw_data *ha = vha->hw;
1277 	uint32_t ratov_j;
1278 	struct qla_qpair *qpair;
1279 	unsigned long flags;
1280 	int fast_fail_status = SUCCESS;
1281 
1282 	if (qla2x00_isp_reg_stat(ha)) {
1283 		ql_log(ql_log_info, vha, 0x8042,
1284 		    "PCI/Register disconnect, exiting.\n");
1285 		qla_pci_set_eeh_busy(vha);
1286 		return FAILED;
1287 	}
1288 
1289 	/* Save any FAST_IO_FAIL value to return later if abort succeeds */
1290 	ret = fc_block_scsi_eh(cmd);
1291 	if (ret != 0)
1292 		fast_fail_status = ret;
1293 
1294 	sp = scsi_cmd_priv(cmd);
1295 	qpair = sp->qpair;
1296 
1297 	vha->cmd_timeout_cnt++;
1298 
1299 	if ((sp->fcport && sp->fcport->deleted) || !qpair)
1300 		return fast_fail_status != SUCCESS ? fast_fail_status : FAILED;
1301 
1302 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1303 	sp->comp = &comp;
1304 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1305 
1306 
1307 	id = cmd->device->id;
1308 	lun = cmd->device->lun;
1309 
1310 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
1311 	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
1312 	    vha->host_no, id, lun, sp, cmd, sp->handle);
1313 
1314 	/*
1315 	 * Abort will release the original Command/sp from FW. Let the
1316 	 * original command call scsi_done. In return, he will wakeup
1317 	 * this sleeping thread.
1318 	 */
1319 	rval = ha->isp_ops->abort_command(sp);
1320 
1321 	ql_dbg(ql_dbg_taskm, vha, 0x8003,
1322 	       "Abort command mbx cmd=%p, rval=%x.\n", cmd, rval);
1323 
1324 	/* Wait for the command completion. */
1325 	ratov_j = ha->r_a_tov/10 * 4 * 1000;
1326 	ratov_j = msecs_to_jiffies(ratov_j);
1327 	switch (rval) {
1328 	case QLA_SUCCESS:
1329 		if (!wait_for_completion_timeout(&comp, ratov_j)) {
1330 			ql_dbg(ql_dbg_taskm, vha, 0xffff,
1331 			    "%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
1332 			    __func__, ha->r_a_tov/10);
1333 			ret = FAILED;
1334 		} else {
1335 			ret = fast_fail_status;
1336 		}
1337 		break;
1338 	default:
1339 		ret = FAILED;
1340 		break;
1341 	}
1342 
1343 	sp->comp = NULL;
1344 
1345 	ql_log(ql_log_info, vha, 0x801c,
1346 	    "Abort command issued nexus=%ld:%d:%llu -- %x.\n",
1347 	    vha->host_no, id, lun, ret);
1348 
1349 	return ret;
1350 }
1351 
1352 /*
1353  * Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED.
1354  */
1355 static int
1356 __qla2x00_eh_wait_for_pending_commands(struct qla_qpair *qpair, unsigned int t,
1357 				       uint64_t l, enum nexus_wait_type type)
1358 {
1359 	int cnt, match, status;
1360 	unsigned long flags;
1361 	scsi_qla_host_t *vha = qpair->vha;
1362 	struct req_que *req = qpair->req;
1363 	srb_t *sp;
1364 	struct scsi_cmnd *cmd;
1365 
1366 	status = QLA_SUCCESS;
1367 
1368 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1369 	for (cnt = 1; status == QLA_SUCCESS &&
1370 		cnt < req->num_outstanding_cmds; cnt++) {
1371 		sp = req->outstanding_cmds[cnt];
1372 		if (!sp)
1373 			continue;
1374 		if (sp->type != SRB_SCSI_CMD)
1375 			continue;
1376 		if (vha->vp_idx != sp->vha->vp_idx)
1377 			continue;
1378 		match = 0;
1379 		cmd = GET_CMD_SP(sp);
1380 		switch (type) {
1381 		case WAIT_HOST:
1382 			match = 1;
1383 			break;
1384 		case WAIT_TARGET:
1385 			match = cmd->device->id == t;
1386 			break;
1387 		case WAIT_LUN:
1388 			match = (cmd->device->id == t &&
1389 				cmd->device->lun == l);
1390 			break;
1391 		}
1392 		if (!match)
1393 			continue;
1394 
1395 		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1396 		status = qla2x00_eh_wait_on_command(cmd);
1397 		spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1398 	}
1399 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1400 
1401 	return status;
1402 }
1403 
1404 int
1405 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1406 				     uint64_t l, enum nexus_wait_type type)
1407 {
1408 	struct qla_qpair *qpair;
1409 	struct qla_hw_data *ha = vha->hw;
1410 	int i, status = QLA_SUCCESS;
1411 
1412 	status = __qla2x00_eh_wait_for_pending_commands(ha->base_qpair, t, l,
1413 							type);
1414 	for (i = 0; status == QLA_SUCCESS && i < ha->max_qpairs; i++) {
1415 		qpair = ha->queue_pair_map[i];
1416 		if (!qpair)
1417 			continue;
1418 		status = __qla2x00_eh_wait_for_pending_commands(qpair, t, l,
1419 								type);
1420 	}
1421 	return status;
1422 }
1423 
1424 static char *reset_errors[] = {
1425 	"HBA not online",
1426 	"HBA not ready",
1427 	"Task management failed",
1428 	"Waiting for command completions",
1429 };
1430 
1431 static int
1432 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1433 {
1434 	struct scsi_device *sdev = cmd->device;
1435 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1436 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1437 	fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1438 	struct qla_hw_data *ha = vha->hw;
1439 	int err;
1440 
1441 	if (qla2x00_isp_reg_stat(ha)) {
1442 		ql_log(ql_log_info, vha, 0x803e,
1443 		    "PCI/Register disconnect, exiting.\n");
1444 		qla_pci_set_eeh_busy(vha);
1445 		return FAILED;
1446 	}
1447 
1448 	if (!fcport) {
1449 		return FAILED;
1450 	}
1451 
1452 	err = fc_block_rport(rport);
1453 	if (err != 0)
1454 		return err;
1455 
1456 	if (fcport->deleted)
1457 		return FAILED;
1458 
1459 	ql_log(ql_log_info, vha, 0x8009,
1460 	    "DEVICE RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", vha->host_no,
1461 	    sdev->id, sdev->lun, cmd);
1462 
1463 	err = 0;
1464 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1465 		ql_log(ql_log_warn, vha, 0x800a,
1466 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1467 		goto eh_reset_failed;
1468 	}
1469 	err = 2;
1470 	if (ha->isp_ops->lun_reset(fcport, sdev->lun, 1)
1471 		!= QLA_SUCCESS) {
1472 		ql_log(ql_log_warn, vha, 0x800c,
1473 		    "do_reset failed for cmd=%p.\n", cmd);
1474 		goto eh_reset_failed;
1475 	}
1476 	err = 3;
1477 	if (qla2x00_eh_wait_for_pending_commands(vha, sdev->id,
1478 	    sdev->lun, WAIT_LUN) != QLA_SUCCESS) {
1479 		ql_log(ql_log_warn, vha, 0x800d,
1480 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1481 		goto eh_reset_failed;
1482 	}
1483 
1484 	ql_log(ql_log_info, vha, 0x800e,
1485 	    "DEVICE RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n",
1486 	    vha->host_no, sdev->id, sdev->lun, cmd);
1487 
1488 	return SUCCESS;
1489 
1490 eh_reset_failed:
1491 	ql_log(ql_log_info, vha, 0x800f,
1492 	    "DEVICE RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
1493 	    reset_errors[err], vha->host_no, sdev->id, sdev->lun,
1494 	    cmd);
1495 	vha->reset_cmd_err_cnt++;
1496 	return FAILED;
1497 }
1498 
1499 static int
1500 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1501 {
1502 	struct scsi_device *sdev = cmd->device;
1503 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1504 	scsi_qla_host_t *vha = shost_priv(rport_to_shost(rport));
1505 	struct qla_hw_data *ha = vha->hw;
1506 	fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
1507 	int err;
1508 
1509 	if (qla2x00_isp_reg_stat(ha)) {
1510 		ql_log(ql_log_info, vha, 0x803f,
1511 		    "PCI/Register disconnect, exiting.\n");
1512 		qla_pci_set_eeh_busy(vha);
1513 		return FAILED;
1514 	}
1515 
1516 	if (!fcport) {
1517 		return FAILED;
1518 	}
1519 
1520 	err = fc_block_rport(rport);
1521 	if (err != 0)
1522 		return err;
1523 
1524 	if (fcport->deleted)
1525 		return FAILED;
1526 
1527 	ql_log(ql_log_info, vha, 0x8009,
1528 	    "TARGET RESET ISSUED nexus=%ld:%d cmd=%p.\n", vha->host_no,
1529 	    sdev->id, cmd);
1530 
1531 	err = 0;
1532 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1533 		ql_log(ql_log_warn, vha, 0x800a,
1534 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1535 		goto eh_reset_failed;
1536 	}
1537 	err = 2;
1538 	if (ha->isp_ops->target_reset(fcport, 0, 0) != QLA_SUCCESS) {
1539 		ql_log(ql_log_warn, vha, 0x800c,
1540 		    "target_reset failed for cmd=%p.\n", cmd);
1541 		goto eh_reset_failed;
1542 	}
1543 	err = 3;
1544 	if (qla2x00_eh_wait_for_pending_commands(vha, sdev->id,
1545 	    0, WAIT_TARGET) != QLA_SUCCESS) {
1546 		ql_log(ql_log_warn, vha, 0x800d,
1547 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1548 		goto eh_reset_failed;
1549 	}
1550 
1551 	ql_log(ql_log_info, vha, 0x800e,
1552 	    "TARGET RESET SUCCEEDED nexus:%ld:%d cmd=%p.\n",
1553 	    vha->host_no, sdev->id, cmd);
1554 
1555 	return SUCCESS;
1556 
1557 eh_reset_failed:
1558 	ql_log(ql_log_info, vha, 0x800f,
1559 	    "TARGET RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
1560 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1561 	    cmd);
1562 	vha->reset_cmd_err_cnt++;
1563 	return FAILED;
1564 }
1565 
1566 /**************************************************************************
1567 * qla2xxx_eh_bus_reset
1568 *
1569 * Description:
1570 *    The bus reset function will reset the bus and abort any executing
1571 *    commands.
1572 *
1573 * Input:
1574 *    cmd = Linux SCSI command packet of the command that cause the
1575 *          bus reset.
1576 *
1577 * Returns:
1578 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1579 *
1580 **************************************************************************/
1581 static int
1582 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1583 {
1584 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1585 	int ret = FAILED;
1586 	unsigned int id;
1587 	uint64_t lun;
1588 	struct qla_hw_data *ha = vha->hw;
1589 
1590 	if (qla2x00_isp_reg_stat(ha)) {
1591 		ql_log(ql_log_info, vha, 0x8040,
1592 		    "PCI/Register disconnect, exiting.\n");
1593 		qla_pci_set_eeh_busy(vha);
1594 		return FAILED;
1595 	}
1596 
1597 	id = cmd->device->id;
1598 	lun = cmd->device->lun;
1599 
1600 	if (qla2x00_chip_is_down(vha))
1601 		return ret;
1602 
1603 	ql_log(ql_log_info, vha, 0x8012,
1604 	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1605 
1606 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1607 		ql_log(ql_log_fatal, vha, 0x8013,
1608 		    "Wait for hba online failed board disabled.\n");
1609 		goto eh_bus_reset_done;
1610 	}
1611 
1612 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1613 		ret = SUCCESS;
1614 
1615 	if (ret == FAILED)
1616 		goto eh_bus_reset_done;
1617 
1618 	/* Flush outstanding commands. */
1619 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1620 	    QLA_SUCCESS) {
1621 		ql_log(ql_log_warn, vha, 0x8014,
1622 		    "Wait for pending commands failed.\n");
1623 		ret = FAILED;
1624 	}
1625 
1626 eh_bus_reset_done:
1627 	ql_log(ql_log_warn, vha, 0x802b,
1628 	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
1629 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1630 
1631 	return ret;
1632 }
1633 
1634 /**************************************************************************
1635 * qla2xxx_eh_host_reset
1636 *
1637 * Description:
1638 *    The reset function will reset the Adapter.
1639 *
1640 * Input:
1641 *      cmd = Linux SCSI command packet of the command that cause the
1642 *            adapter reset.
1643 *
1644 * Returns:
1645 *      Either SUCCESS or FAILED.
1646 *
1647 * Note:
1648 **************************************************************************/
1649 static int
1650 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1651 {
1652 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1653 	struct qla_hw_data *ha = vha->hw;
1654 	int ret = FAILED;
1655 	unsigned int id;
1656 	uint64_t lun;
1657 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1658 
1659 	if (qla2x00_isp_reg_stat(ha)) {
1660 		ql_log(ql_log_info, vha, 0x8041,
1661 		    "PCI/Register disconnect, exiting.\n");
1662 		qla_pci_set_eeh_busy(vha);
1663 		return SUCCESS;
1664 	}
1665 
1666 	id = cmd->device->id;
1667 	lun = cmd->device->lun;
1668 
1669 	ql_log(ql_log_info, vha, 0x8018,
1670 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1671 
1672 	/*
1673 	 * No point in issuing another reset if one is active.  Also do not
1674 	 * attempt a reset if we are updating flash.
1675 	 */
1676 	if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
1677 		goto eh_host_reset_lock;
1678 
1679 	if (vha != base_vha) {
1680 		if (qla2x00_vp_abort_isp(vha))
1681 			goto eh_host_reset_lock;
1682 	} else {
1683 		if (IS_P3P_TYPE(vha->hw)) {
1684 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1685 				/* Ctx reset success */
1686 				ret = SUCCESS;
1687 				goto eh_host_reset_lock;
1688 			}
1689 			/* fall thru if ctx reset failed */
1690 		}
1691 		if (ha->wq)
1692 			flush_workqueue(ha->wq);
1693 
1694 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1695 		if (ha->isp_ops->abort_isp(base_vha)) {
1696 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1697 			/* failed. schedule dpc to try */
1698 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1699 
1700 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1701 				ql_log(ql_log_warn, vha, 0x802a,
1702 				    "wait for hba online failed.\n");
1703 				goto eh_host_reset_lock;
1704 			}
1705 		}
1706 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1707 	}
1708 
1709 	/* Waiting for command to be returned to OS.*/
1710 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1711 		QLA_SUCCESS)
1712 		ret = SUCCESS;
1713 
1714 eh_host_reset_lock:
1715 	ql_log(ql_log_info, vha, 0x8017,
1716 	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
1717 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1718 
1719 	return ret;
1720 }
1721 
1722 /*
1723 * qla2x00_loop_reset
1724 *      Issue loop reset.
1725 *
1726 * Input:
1727 *      ha = adapter block pointer.
1728 *
1729 * Returns:
1730 *      0 = success
1731 */
1732 int
1733 qla2x00_loop_reset(scsi_qla_host_t *vha)
1734 {
1735 	int ret;
1736 	struct qla_hw_data *ha = vha->hw;
1737 
1738 	if (IS_QLAFX00(ha))
1739 		return QLA_SUCCESS;
1740 
1741 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1742 		atomic_set(&vha->loop_state, LOOP_DOWN);
1743 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1744 		qla2x00_mark_all_devices_lost(vha);
1745 		ret = qla2x00_full_login_lip(vha);
1746 		if (ret != QLA_SUCCESS) {
1747 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1748 			    "full_login_lip=%d.\n", ret);
1749 		}
1750 	}
1751 
1752 	if (ha->flags.enable_lip_reset) {
1753 		ret = qla2x00_lip_reset(vha);
1754 		if (ret != QLA_SUCCESS)
1755 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1756 			    "lip_reset failed (%d).\n", ret);
1757 	}
1758 
1759 	/* Issue marker command only when we are going to start the I/O */
1760 	vha->marker_needed = 1;
1761 
1762 	return QLA_SUCCESS;
1763 }
1764 
1765 /*
1766  * The caller must ensure that no completion interrupts will happen
1767  * while this function is in progress.
1768  */
1769 static void qla2x00_abort_srb(struct qla_qpair *qp, srb_t *sp, const int res,
1770 			      unsigned long *flags)
1771 	__releases(qp->qp_lock_ptr)
1772 	__acquires(qp->qp_lock_ptr)
1773 {
1774 	DECLARE_COMPLETION_ONSTACK(comp);
1775 	scsi_qla_host_t *vha = qp->vha;
1776 	struct qla_hw_data *ha = vha->hw;
1777 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1778 	int rval;
1779 	bool ret_cmd;
1780 	uint32_t ratov_j;
1781 
1782 	lockdep_assert_held(qp->qp_lock_ptr);
1783 
1784 	if (qla2x00_chip_is_down(vha)) {
1785 		sp->done(sp, res);
1786 		return;
1787 	}
1788 
1789 	if (sp->type == SRB_NVME_CMD || sp->type == SRB_NVME_LS ||
1790 	    (sp->type == SRB_SCSI_CMD && !ha->flags.eeh_busy &&
1791 	     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
1792 	     !qla2x00_isp_reg_stat(ha))) {
1793 		if (sp->comp) {
1794 			sp->done(sp, res);
1795 			return;
1796 		}
1797 
1798 		sp->comp = &comp;
1799 		spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
1800 
1801 		rval = ha->isp_ops->abort_command(sp);
1802 		/* Wait for command completion. */
1803 		ret_cmd = false;
1804 		ratov_j = ha->r_a_tov/10 * 4 * 1000;
1805 		ratov_j = msecs_to_jiffies(ratov_j);
1806 		switch (rval) {
1807 		case QLA_SUCCESS:
1808 			if (wait_for_completion_timeout(&comp, ratov_j)) {
1809 				ql_dbg(ql_dbg_taskm, vha, 0xffff,
1810 				    "%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
1811 				    __func__, ha->r_a_tov/10);
1812 				ret_cmd = true;
1813 			}
1814 			/* else FW return SP to driver */
1815 			break;
1816 		default:
1817 			ret_cmd = true;
1818 			break;
1819 		}
1820 
1821 		spin_lock_irqsave(qp->qp_lock_ptr, *flags);
1822 		if (ret_cmd && blk_mq_request_started(scsi_cmd_to_rq(cmd)))
1823 			sp->done(sp, res);
1824 	} else {
1825 		sp->done(sp, res);
1826 	}
1827 }
1828 
1829 /*
1830  * The caller must ensure that no completion interrupts will happen
1831  * while this function is in progress.
1832  */
1833 static void
1834 __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
1835 {
1836 	int cnt;
1837 	unsigned long flags;
1838 	srb_t *sp;
1839 	scsi_qla_host_t *vha = qp->vha;
1840 	struct qla_hw_data *ha = vha->hw;
1841 	struct req_que *req;
1842 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1843 	struct qla_tgt_cmd *cmd;
1844 
1845 	if (!ha->req_q_map)
1846 		return;
1847 	spin_lock_irqsave(qp->qp_lock_ptr, flags);
1848 	req = qp->req;
1849 	for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1850 		sp = req->outstanding_cmds[cnt];
1851 		if (sp) {
1852 			switch (sp->cmd_type) {
1853 			case TYPE_SRB:
1854 				qla2x00_abort_srb(qp, sp, res, &flags);
1855 				break;
1856 			case TYPE_TGT_CMD:
1857 				if (!vha->hw->tgt.tgt_ops || !tgt ||
1858 				    qla_ini_mode_enabled(vha)) {
1859 					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
1860 					    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
1861 					    vha->dpc_flags);
1862 					continue;
1863 				}
1864 				cmd = (struct qla_tgt_cmd *)sp;
1865 				cmd->aborted = 1;
1866 				break;
1867 			case TYPE_TGT_TMCMD:
1868 				/* Skip task management functions. */
1869 				break;
1870 			default:
1871 				break;
1872 			}
1873 			req->outstanding_cmds[cnt] = NULL;
1874 		}
1875 	}
1876 	spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1877 }
1878 
1879 /*
1880  * The caller must ensure that no completion interrupts will happen
1881  * while this function is in progress.
1882  */
1883 void
1884 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1885 {
1886 	int que;
1887 	struct qla_hw_data *ha = vha->hw;
1888 
1889 	/* Continue only if initialization complete. */
1890 	if (!ha->base_qpair)
1891 		return;
1892 	__qla2x00_abort_all_cmds(ha->base_qpair, res);
1893 
1894 	if (!ha->queue_pair_map)
1895 		return;
1896 	for (que = 0; que < ha->max_qpairs; que++) {
1897 		if (!ha->queue_pair_map[que])
1898 			continue;
1899 
1900 		__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
1901 	}
1902 }
1903 
1904 static int
1905 qla2xxx_slave_alloc(struct scsi_device *sdev)
1906 {
1907 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1908 
1909 	if (!rport || fc_remote_port_chkready(rport))
1910 		return -ENXIO;
1911 
1912 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1913 
1914 	return 0;
1915 }
1916 
1917 static int
1918 qla2xxx_slave_configure(struct scsi_device *sdev)
1919 {
1920 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1921 	struct req_que *req = vha->req;
1922 
1923 	if (IS_T10_PI_CAPABLE(vha->hw))
1924 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1925 
1926 	scsi_change_queue_depth(sdev, req->max_q_depth);
1927 	return 0;
1928 }
1929 
1930 static void
1931 qla2xxx_slave_destroy(struct scsi_device *sdev)
1932 {
1933 	sdev->hostdata = NULL;
1934 }
1935 
1936 /**
1937  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1938  * @ha: HA context
1939  *
1940  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1941  * supported addressing method.
1942  */
1943 static void
1944 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1945 {
1946 	/* Assume a 32bit DMA mask. */
1947 	ha->flags.enable_64bit_addressing = 0;
1948 
1949 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1950 		/* Any upper-dword bits set? */
1951 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1952 		    !dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1953 			/* Ok, a 64bit DMA mask is applicable. */
1954 			ha->flags.enable_64bit_addressing = 1;
1955 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1956 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1957 			return;
1958 		}
1959 	}
1960 
1961 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1962 	dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1963 }
1964 
1965 static void
1966 qla2x00_enable_intrs(struct qla_hw_data *ha)
1967 {
1968 	unsigned long flags = 0;
1969 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1970 
1971 	spin_lock_irqsave(&ha->hardware_lock, flags);
1972 	ha->interrupts_on = 1;
1973 	/* enable risc and host interrupts */
1974 	wrt_reg_word(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1975 	rd_reg_word(&reg->ictrl);
1976 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1977 
1978 }
1979 
1980 static void
1981 qla2x00_disable_intrs(struct qla_hw_data *ha)
1982 {
1983 	unsigned long flags = 0;
1984 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1985 
1986 	spin_lock_irqsave(&ha->hardware_lock, flags);
1987 	ha->interrupts_on = 0;
1988 	/* disable risc and host interrupts */
1989 	wrt_reg_word(&reg->ictrl, 0);
1990 	rd_reg_word(&reg->ictrl);
1991 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1992 }
1993 
1994 static void
1995 qla24xx_enable_intrs(struct qla_hw_data *ha)
1996 {
1997 	unsigned long flags = 0;
1998 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1999 
2000 	spin_lock_irqsave(&ha->hardware_lock, flags);
2001 	ha->interrupts_on = 1;
2002 	wrt_reg_dword(&reg->ictrl, ICRX_EN_RISC_INT);
2003 	rd_reg_dword(&reg->ictrl);
2004 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2005 }
2006 
2007 static void
2008 qla24xx_disable_intrs(struct qla_hw_data *ha)
2009 {
2010 	unsigned long flags = 0;
2011 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2012 
2013 	if (IS_NOPOLLING_TYPE(ha))
2014 		return;
2015 	spin_lock_irqsave(&ha->hardware_lock, flags);
2016 	ha->interrupts_on = 0;
2017 	wrt_reg_dword(&reg->ictrl, 0);
2018 	rd_reg_dword(&reg->ictrl);
2019 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2020 }
2021 
2022 static int
2023 qla2x00_iospace_config(struct qla_hw_data *ha)
2024 {
2025 	resource_size_t pio;
2026 	uint16_t msix;
2027 
2028 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2029 	    QLA2XXX_DRIVER_NAME)) {
2030 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
2031 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2032 		    pci_name(ha->pdev));
2033 		goto iospace_error_exit;
2034 	}
2035 	if (!(ha->bars & 1))
2036 		goto skip_pio;
2037 
2038 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
2039 	pio = pci_resource_start(ha->pdev, 0);
2040 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
2041 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2042 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
2043 			    "Invalid pci I/O region size (%s).\n",
2044 			    pci_name(ha->pdev));
2045 			pio = 0;
2046 		}
2047 	} else {
2048 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
2049 		    "Region #0 no a PIO resource (%s).\n",
2050 		    pci_name(ha->pdev));
2051 		pio = 0;
2052 	}
2053 	ha->pio_address = pio;
2054 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
2055 	    "PIO address=%llu.\n",
2056 	    (unsigned long long)ha->pio_address);
2057 
2058 skip_pio:
2059 	/* Use MMIO operations for all accesses. */
2060 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
2061 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
2062 		    "Region #1 not an MMIO resource (%s), aborting.\n",
2063 		    pci_name(ha->pdev));
2064 		goto iospace_error_exit;
2065 	}
2066 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
2067 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
2068 		    "Invalid PCI mem region size (%s), aborting.\n",
2069 		    pci_name(ha->pdev));
2070 		goto iospace_error_exit;
2071 	}
2072 
2073 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
2074 	if (!ha->iobase) {
2075 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
2076 		    "Cannot remap MMIO (%s), aborting.\n",
2077 		    pci_name(ha->pdev));
2078 		goto iospace_error_exit;
2079 	}
2080 
2081 	/* Determine queue resources */
2082 	ha->max_req_queues = ha->max_rsp_queues = 1;
2083 	ha->msix_count = QLA_BASE_VECTORS;
2084 
2085 	/* Check if FW supports MQ or not */
2086 	if (!(ha->fw_attributes & BIT_6))
2087 		goto mqiobase_exit;
2088 
2089 	if (!ql2xmqsupport || !ql2xnvmeenable ||
2090 	    (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
2091 		goto mqiobase_exit;
2092 
2093 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
2094 			pci_resource_len(ha->pdev, 3));
2095 	if (ha->mqiobase) {
2096 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
2097 		    "MQIO Base=%p.\n", ha->mqiobase);
2098 		/* Read MSIX vector size of the board */
2099 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
2100 		ha->msix_count = msix + 1;
2101 		/* Max queues are bounded by available msix vectors */
2102 		/* MB interrupt uses 1 vector */
2103 		ha->max_req_queues = ha->msix_count - 1;
2104 		ha->max_rsp_queues = ha->max_req_queues;
2105 		/* Queue pairs is the max value minus the base queue pair */
2106 		ha->max_qpairs = ha->max_rsp_queues - 1;
2107 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
2108 		    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2109 
2110 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
2111 		    "MSI-X vector count: %d.\n", ha->msix_count);
2112 	} else
2113 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
2114 		    "BAR 3 not enabled.\n");
2115 
2116 mqiobase_exit:
2117 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
2118 	    "MSIX Count: %d.\n", ha->msix_count);
2119 	return (0);
2120 
2121 iospace_error_exit:
2122 	return (-ENOMEM);
2123 }
2124 
2125 
2126 static int
2127 qla83xx_iospace_config(struct qla_hw_data *ha)
2128 {
2129 	uint16_t msix;
2130 
2131 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2132 	    QLA2XXX_DRIVER_NAME)) {
2133 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
2134 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2135 		    pci_name(ha->pdev));
2136 
2137 		goto iospace_error_exit;
2138 	}
2139 
2140 	/* Use MMIO operations for all accesses. */
2141 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
2142 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
2143 		    "Invalid pci I/O region size (%s).\n",
2144 		    pci_name(ha->pdev));
2145 		goto iospace_error_exit;
2146 	}
2147 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2148 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
2149 		    "Invalid PCI mem region size (%s), aborting\n",
2150 			pci_name(ha->pdev));
2151 		goto iospace_error_exit;
2152 	}
2153 
2154 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
2155 	if (!ha->iobase) {
2156 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
2157 		    "Cannot remap MMIO (%s), aborting.\n",
2158 		    pci_name(ha->pdev));
2159 		goto iospace_error_exit;
2160 	}
2161 
2162 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
2163 	/* 83XX 26XX always use MQ type access for queues
2164 	 * - mbar 2, a.k.a region 4 */
2165 	ha->max_req_queues = ha->max_rsp_queues = 1;
2166 	ha->msix_count = QLA_BASE_VECTORS;
2167 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
2168 			pci_resource_len(ha->pdev, 4));
2169 
2170 	if (!ha->mqiobase) {
2171 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
2172 		    "BAR2/region4 not enabled\n");
2173 		goto mqiobase_exit;
2174 	}
2175 
2176 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
2177 			pci_resource_len(ha->pdev, 2));
2178 	if (ha->msixbase) {
2179 		/* Read MSIX vector size of the board */
2180 		pci_read_config_word(ha->pdev,
2181 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
2182 		ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE)  + 1;
2183 		/*
2184 		 * By default, driver uses at least two msix vectors
2185 		 * (default & rspq)
2186 		 */
2187 		if (ql2xmqsupport || ql2xnvmeenable) {
2188 			/* MB interrupt uses 1 vector */
2189 			ha->max_req_queues = ha->msix_count - 1;
2190 
2191 			/* ATIOQ needs 1 vector. That's 1 less QPair */
2192 			if (QLA_TGT_MODE_ENABLED())
2193 				ha->max_req_queues--;
2194 
2195 			ha->max_rsp_queues = ha->max_req_queues;
2196 
2197 			/* Queue pairs is the max value minus
2198 			 * the base queue pair */
2199 			ha->max_qpairs = ha->max_req_queues - 1;
2200 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x00e3,
2201 			    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2202 		}
2203 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
2204 		    "MSI-X vector count: %d.\n", ha->msix_count);
2205 	} else
2206 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
2207 		    "BAR 1 not enabled.\n");
2208 
2209 mqiobase_exit:
2210 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
2211 	    "MSIX Count: %d.\n", ha->msix_count);
2212 	return 0;
2213 
2214 iospace_error_exit:
2215 	return -ENOMEM;
2216 }
2217 
2218 static struct isp_operations qla2100_isp_ops = {
2219 	.pci_config		= qla2100_pci_config,
2220 	.reset_chip		= qla2x00_reset_chip,
2221 	.chip_diag		= qla2x00_chip_diag,
2222 	.config_rings		= qla2x00_config_rings,
2223 	.reset_adapter		= qla2x00_reset_adapter,
2224 	.nvram_config		= qla2x00_nvram_config,
2225 	.update_fw_options	= qla2x00_update_fw_options,
2226 	.load_risc		= qla2x00_load_risc,
2227 	.pci_info_str		= qla2x00_pci_info_str,
2228 	.fw_version_str		= qla2x00_fw_version_str,
2229 	.intr_handler		= qla2100_intr_handler,
2230 	.enable_intrs		= qla2x00_enable_intrs,
2231 	.disable_intrs		= qla2x00_disable_intrs,
2232 	.abort_command		= qla2x00_abort_command,
2233 	.target_reset		= qla2x00_abort_target,
2234 	.lun_reset		= qla2x00_lun_reset,
2235 	.fabric_login		= qla2x00_login_fabric,
2236 	.fabric_logout		= qla2x00_fabric_logout,
2237 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2238 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2239 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2240 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2241 	.read_nvram		= qla2x00_read_nvram_data,
2242 	.write_nvram		= qla2x00_write_nvram_data,
2243 	.fw_dump		= qla2100_fw_dump,
2244 	.beacon_on		= NULL,
2245 	.beacon_off		= NULL,
2246 	.beacon_blink		= NULL,
2247 	.read_optrom		= qla2x00_read_optrom_data,
2248 	.write_optrom		= qla2x00_write_optrom_data,
2249 	.get_flash_version	= qla2x00_get_flash_version,
2250 	.start_scsi		= qla2x00_start_scsi,
2251 	.start_scsi_mq          = NULL,
2252 	.abort_isp		= qla2x00_abort_isp,
2253 	.iospace_config     	= qla2x00_iospace_config,
2254 	.initialize_adapter	= qla2x00_initialize_adapter,
2255 };
2256 
2257 static struct isp_operations qla2300_isp_ops = {
2258 	.pci_config		= qla2300_pci_config,
2259 	.reset_chip		= qla2x00_reset_chip,
2260 	.chip_diag		= qla2x00_chip_diag,
2261 	.config_rings		= qla2x00_config_rings,
2262 	.reset_adapter		= qla2x00_reset_adapter,
2263 	.nvram_config		= qla2x00_nvram_config,
2264 	.update_fw_options	= qla2x00_update_fw_options,
2265 	.load_risc		= qla2x00_load_risc,
2266 	.pci_info_str		= qla2x00_pci_info_str,
2267 	.fw_version_str		= qla2x00_fw_version_str,
2268 	.intr_handler		= qla2300_intr_handler,
2269 	.enable_intrs		= qla2x00_enable_intrs,
2270 	.disable_intrs		= qla2x00_disable_intrs,
2271 	.abort_command		= qla2x00_abort_command,
2272 	.target_reset		= qla2x00_abort_target,
2273 	.lun_reset		= qla2x00_lun_reset,
2274 	.fabric_login		= qla2x00_login_fabric,
2275 	.fabric_logout		= qla2x00_fabric_logout,
2276 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2277 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2278 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2279 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2280 	.read_nvram		= qla2x00_read_nvram_data,
2281 	.write_nvram		= qla2x00_write_nvram_data,
2282 	.fw_dump		= qla2300_fw_dump,
2283 	.beacon_on		= qla2x00_beacon_on,
2284 	.beacon_off		= qla2x00_beacon_off,
2285 	.beacon_blink		= qla2x00_beacon_blink,
2286 	.read_optrom		= qla2x00_read_optrom_data,
2287 	.write_optrom		= qla2x00_write_optrom_data,
2288 	.get_flash_version	= qla2x00_get_flash_version,
2289 	.start_scsi		= qla2x00_start_scsi,
2290 	.start_scsi_mq          = NULL,
2291 	.abort_isp		= qla2x00_abort_isp,
2292 	.iospace_config		= qla2x00_iospace_config,
2293 	.initialize_adapter	= qla2x00_initialize_adapter,
2294 };
2295 
2296 static struct isp_operations qla24xx_isp_ops = {
2297 	.pci_config		= qla24xx_pci_config,
2298 	.reset_chip		= qla24xx_reset_chip,
2299 	.chip_diag		= qla24xx_chip_diag,
2300 	.config_rings		= qla24xx_config_rings,
2301 	.reset_adapter		= qla24xx_reset_adapter,
2302 	.nvram_config		= qla24xx_nvram_config,
2303 	.update_fw_options	= qla24xx_update_fw_options,
2304 	.load_risc		= qla24xx_load_risc,
2305 	.pci_info_str		= qla24xx_pci_info_str,
2306 	.fw_version_str		= qla24xx_fw_version_str,
2307 	.intr_handler		= qla24xx_intr_handler,
2308 	.enable_intrs		= qla24xx_enable_intrs,
2309 	.disable_intrs		= qla24xx_disable_intrs,
2310 	.abort_command		= qla24xx_abort_command,
2311 	.target_reset		= qla24xx_abort_target,
2312 	.lun_reset		= qla24xx_lun_reset,
2313 	.fabric_login		= qla24xx_login_fabric,
2314 	.fabric_logout		= qla24xx_fabric_logout,
2315 	.calc_req_entries	= NULL,
2316 	.build_iocbs		= NULL,
2317 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2318 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2319 	.read_nvram		= qla24xx_read_nvram_data,
2320 	.write_nvram		= qla24xx_write_nvram_data,
2321 	.fw_dump		= qla24xx_fw_dump,
2322 	.beacon_on		= qla24xx_beacon_on,
2323 	.beacon_off		= qla24xx_beacon_off,
2324 	.beacon_blink		= qla24xx_beacon_blink,
2325 	.read_optrom		= qla24xx_read_optrom_data,
2326 	.write_optrom		= qla24xx_write_optrom_data,
2327 	.get_flash_version	= qla24xx_get_flash_version,
2328 	.start_scsi		= qla24xx_start_scsi,
2329 	.start_scsi_mq          = NULL,
2330 	.abort_isp		= qla2x00_abort_isp,
2331 	.iospace_config		= qla2x00_iospace_config,
2332 	.initialize_adapter	= qla2x00_initialize_adapter,
2333 };
2334 
2335 static struct isp_operations qla25xx_isp_ops = {
2336 	.pci_config		= qla25xx_pci_config,
2337 	.reset_chip		= qla24xx_reset_chip,
2338 	.chip_diag		= qla24xx_chip_diag,
2339 	.config_rings		= qla24xx_config_rings,
2340 	.reset_adapter		= qla24xx_reset_adapter,
2341 	.nvram_config		= qla24xx_nvram_config,
2342 	.update_fw_options	= qla24xx_update_fw_options,
2343 	.load_risc		= qla24xx_load_risc,
2344 	.pci_info_str		= qla24xx_pci_info_str,
2345 	.fw_version_str		= qla24xx_fw_version_str,
2346 	.intr_handler		= qla24xx_intr_handler,
2347 	.enable_intrs		= qla24xx_enable_intrs,
2348 	.disable_intrs		= qla24xx_disable_intrs,
2349 	.abort_command		= qla24xx_abort_command,
2350 	.target_reset		= qla24xx_abort_target,
2351 	.lun_reset		= qla24xx_lun_reset,
2352 	.fabric_login		= qla24xx_login_fabric,
2353 	.fabric_logout		= qla24xx_fabric_logout,
2354 	.calc_req_entries	= NULL,
2355 	.build_iocbs		= NULL,
2356 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2357 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2358 	.read_nvram		= qla25xx_read_nvram_data,
2359 	.write_nvram		= qla25xx_write_nvram_data,
2360 	.fw_dump		= qla25xx_fw_dump,
2361 	.beacon_on		= qla24xx_beacon_on,
2362 	.beacon_off		= qla24xx_beacon_off,
2363 	.beacon_blink		= qla24xx_beacon_blink,
2364 	.read_optrom		= qla25xx_read_optrom_data,
2365 	.write_optrom		= qla24xx_write_optrom_data,
2366 	.get_flash_version	= qla24xx_get_flash_version,
2367 	.start_scsi		= qla24xx_dif_start_scsi,
2368 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2369 	.abort_isp		= qla2x00_abort_isp,
2370 	.iospace_config		= qla2x00_iospace_config,
2371 	.initialize_adapter	= qla2x00_initialize_adapter,
2372 };
2373 
2374 static struct isp_operations qla81xx_isp_ops = {
2375 	.pci_config		= qla25xx_pci_config,
2376 	.reset_chip		= qla24xx_reset_chip,
2377 	.chip_diag		= qla24xx_chip_diag,
2378 	.config_rings		= qla24xx_config_rings,
2379 	.reset_adapter		= qla24xx_reset_adapter,
2380 	.nvram_config		= qla81xx_nvram_config,
2381 	.update_fw_options	= qla24xx_update_fw_options,
2382 	.load_risc		= qla81xx_load_risc,
2383 	.pci_info_str		= qla24xx_pci_info_str,
2384 	.fw_version_str		= qla24xx_fw_version_str,
2385 	.intr_handler		= qla24xx_intr_handler,
2386 	.enable_intrs		= qla24xx_enable_intrs,
2387 	.disable_intrs		= qla24xx_disable_intrs,
2388 	.abort_command		= qla24xx_abort_command,
2389 	.target_reset		= qla24xx_abort_target,
2390 	.lun_reset		= qla24xx_lun_reset,
2391 	.fabric_login		= qla24xx_login_fabric,
2392 	.fabric_logout		= qla24xx_fabric_logout,
2393 	.calc_req_entries	= NULL,
2394 	.build_iocbs		= NULL,
2395 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2396 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2397 	.read_nvram		= NULL,
2398 	.write_nvram		= NULL,
2399 	.fw_dump		= qla81xx_fw_dump,
2400 	.beacon_on		= qla24xx_beacon_on,
2401 	.beacon_off		= qla24xx_beacon_off,
2402 	.beacon_blink		= qla83xx_beacon_blink,
2403 	.read_optrom		= qla25xx_read_optrom_data,
2404 	.write_optrom		= qla24xx_write_optrom_data,
2405 	.get_flash_version	= qla24xx_get_flash_version,
2406 	.start_scsi		= qla24xx_dif_start_scsi,
2407 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2408 	.abort_isp		= qla2x00_abort_isp,
2409 	.iospace_config		= qla2x00_iospace_config,
2410 	.initialize_adapter	= qla2x00_initialize_adapter,
2411 };
2412 
2413 static struct isp_operations qla82xx_isp_ops = {
2414 	.pci_config		= qla82xx_pci_config,
2415 	.reset_chip		= qla82xx_reset_chip,
2416 	.chip_diag		= qla24xx_chip_diag,
2417 	.config_rings		= qla82xx_config_rings,
2418 	.reset_adapter		= qla24xx_reset_adapter,
2419 	.nvram_config		= qla81xx_nvram_config,
2420 	.update_fw_options	= qla24xx_update_fw_options,
2421 	.load_risc		= qla82xx_load_risc,
2422 	.pci_info_str		= qla24xx_pci_info_str,
2423 	.fw_version_str		= qla24xx_fw_version_str,
2424 	.intr_handler		= qla82xx_intr_handler,
2425 	.enable_intrs		= qla82xx_enable_intrs,
2426 	.disable_intrs		= qla82xx_disable_intrs,
2427 	.abort_command		= qla24xx_abort_command,
2428 	.target_reset		= qla24xx_abort_target,
2429 	.lun_reset		= qla24xx_lun_reset,
2430 	.fabric_login		= qla24xx_login_fabric,
2431 	.fabric_logout		= qla24xx_fabric_logout,
2432 	.calc_req_entries	= NULL,
2433 	.build_iocbs		= NULL,
2434 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2435 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2436 	.read_nvram		= qla24xx_read_nvram_data,
2437 	.write_nvram		= qla24xx_write_nvram_data,
2438 	.fw_dump		= qla82xx_fw_dump,
2439 	.beacon_on		= qla82xx_beacon_on,
2440 	.beacon_off		= qla82xx_beacon_off,
2441 	.beacon_blink		= NULL,
2442 	.read_optrom		= qla82xx_read_optrom_data,
2443 	.write_optrom		= qla82xx_write_optrom_data,
2444 	.get_flash_version	= qla82xx_get_flash_version,
2445 	.start_scsi             = qla82xx_start_scsi,
2446 	.start_scsi_mq          = NULL,
2447 	.abort_isp		= qla82xx_abort_isp,
2448 	.iospace_config     	= qla82xx_iospace_config,
2449 	.initialize_adapter	= qla2x00_initialize_adapter,
2450 };
2451 
2452 static struct isp_operations qla8044_isp_ops = {
2453 	.pci_config		= qla82xx_pci_config,
2454 	.reset_chip		= qla82xx_reset_chip,
2455 	.chip_diag		= qla24xx_chip_diag,
2456 	.config_rings		= qla82xx_config_rings,
2457 	.reset_adapter		= qla24xx_reset_adapter,
2458 	.nvram_config		= qla81xx_nvram_config,
2459 	.update_fw_options	= qla24xx_update_fw_options,
2460 	.load_risc		= qla82xx_load_risc,
2461 	.pci_info_str		= qla24xx_pci_info_str,
2462 	.fw_version_str		= qla24xx_fw_version_str,
2463 	.intr_handler		= qla8044_intr_handler,
2464 	.enable_intrs		= qla82xx_enable_intrs,
2465 	.disable_intrs		= qla82xx_disable_intrs,
2466 	.abort_command		= qla24xx_abort_command,
2467 	.target_reset		= qla24xx_abort_target,
2468 	.lun_reset		= qla24xx_lun_reset,
2469 	.fabric_login		= qla24xx_login_fabric,
2470 	.fabric_logout		= qla24xx_fabric_logout,
2471 	.calc_req_entries	= NULL,
2472 	.build_iocbs		= NULL,
2473 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2474 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2475 	.read_nvram		= NULL,
2476 	.write_nvram		= NULL,
2477 	.fw_dump		= qla8044_fw_dump,
2478 	.beacon_on		= qla82xx_beacon_on,
2479 	.beacon_off		= qla82xx_beacon_off,
2480 	.beacon_blink		= NULL,
2481 	.read_optrom		= qla8044_read_optrom_data,
2482 	.write_optrom		= qla8044_write_optrom_data,
2483 	.get_flash_version	= qla82xx_get_flash_version,
2484 	.start_scsi             = qla82xx_start_scsi,
2485 	.start_scsi_mq          = NULL,
2486 	.abort_isp		= qla8044_abort_isp,
2487 	.iospace_config		= qla82xx_iospace_config,
2488 	.initialize_adapter	= qla2x00_initialize_adapter,
2489 };
2490 
2491 static struct isp_operations qla83xx_isp_ops = {
2492 	.pci_config		= qla25xx_pci_config,
2493 	.reset_chip		= qla24xx_reset_chip,
2494 	.chip_diag		= qla24xx_chip_diag,
2495 	.config_rings		= qla24xx_config_rings,
2496 	.reset_adapter		= qla24xx_reset_adapter,
2497 	.nvram_config		= qla81xx_nvram_config,
2498 	.update_fw_options	= qla24xx_update_fw_options,
2499 	.load_risc		= qla81xx_load_risc,
2500 	.pci_info_str		= qla24xx_pci_info_str,
2501 	.fw_version_str		= qla24xx_fw_version_str,
2502 	.intr_handler		= qla24xx_intr_handler,
2503 	.enable_intrs		= qla24xx_enable_intrs,
2504 	.disable_intrs		= qla24xx_disable_intrs,
2505 	.abort_command		= qla24xx_abort_command,
2506 	.target_reset		= qla24xx_abort_target,
2507 	.lun_reset		= qla24xx_lun_reset,
2508 	.fabric_login		= qla24xx_login_fabric,
2509 	.fabric_logout		= qla24xx_fabric_logout,
2510 	.calc_req_entries	= NULL,
2511 	.build_iocbs		= NULL,
2512 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2513 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2514 	.read_nvram		= NULL,
2515 	.write_nvram		= NULL,
2516 	.fw_dump		= qla83xx_fw_dump,
2517 	.beacon_on		= qla24xx_beacon_on,
2518 	.beacon_off		= qla24xx_beacon_off,
2519 	.beacon_blink		= qla83xx_beacon_blink,
2520 	.read_optrom		= qla25xx_read_optrom_data,
2521 	.write_optrom		= qla24xx_write_optrom_data,
2522 	.get_flash_version	= qla24xx_get_flash_version,
2523 	.start_scsi		= qla24xx_dif_start_scsi,
2524 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2525 	.abort_isp		= qla2x00_abort_isp,
2526 	.iospace_config		= qla83xx_iospace_config,
2527 	.initialize_adapter	= qla2x00_initialize_adapter,
2528 };
2529 
2530 static struct isp_operations qlafx00_isp_ops = {
2531 	.pci_config		= qlafx00_pci_config,
2532 	.reset_chip		= qlafx00_soft_reset,
2533 	.chip_diag		= qlafx00_chip_diag,
2534 	.config_rings		= qlafx00_config_rings,
2535 	.reset_adapter		= qlafx00_soft_reset,
2536 	.nvram_config		= NULL,
2537 	.update_fw_options	= NULL,
2538 	.load_risc		= NULL,
2539 	.pci_info_str		= qlafx00_pci_info_str,
2540 	.fw_version_str		= qlafx00_fw_version_str,
2541 	.intr_handler		= qlafx00_intr_handler,
2542 	.enable_intrs		= qlafx00_enable_intrs,
2543 	.disable_intrs		= qlafx00_disable_intrs,
2544 	.abort_command		= qla24xx_async_abort_command,
2545 	.target_reset		= qlafx00_abort_target,
2546 	.lun_reset		= qlafx00_lun_reset,
2547 	.fabric_login		= NULL,
2548 	.fabric_logout		= NULL,
2549 	.calc_req_entries	= NULL,
2550 	.build_iocbs		= NULL,
2551 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2552 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2553 	.read_nvram		= qla24xx_read_nvram_data,
2554 	.write_nvram		= qla24xx_write_nvram_data,
2555 	.fw_dump		= NULL,
2556 	.beacon_on		= qla24xx_beacon_on,
2557 	.beacon_off		= qla24xx_beacon_off,
2558 	.beacon_blink		= NULL,
2559 	.read_optrom		= qla24xx_read_optrom_data,
2560 	.write_optrom		= qla24xx_write_optrom_data,
2561 	.get_flash_version	= qla24xx_get_flash_version,
2562 	.start_scsi		= qlafx00_start_scsi,
2563 	.start_scsi_mq          = NULL,
2564 	.abort_isp		= qlafx00_abort_isp,
2565 	.iospace_config		= qlafx00_iospace_config,
2566 	.initialize_adapter	= qlafx00_initialize_adapter,
2567 };
2568 
2569 static struct isp_operations qla27xx_isp_ops = {
2570 	.pci_config		= qla25xx_pci_config,
2571 	.reset_chip		= qla24xx_reset_chip,
2572 	.chip_diag		= qla24xx_chip_diag,
2573 	.config_rings		= qla24xx_config_rings,
2574 	.reset_adapter		= qla24xx_reset_adapter,
2575 	.nvram_config		= qla81xx_nvram_config,
2576 	.update_fw_options	= qla24xx_update_fw_options,
2577 	.load_risc		= qla81xx_load_risc,
2578 	.pci_info_str		= qla24xx_pci_info_str,
2579 	.fw_version_str		= qla24xx_fw_version_str,
2580 	.intr_handler		= qla24xx_intr_handler,
2581 	.enable_intrs		= qla24xx_enable_intrs,
2582 	.disable_intrs		= qla24xx_disable_intrs,
2583 	.abort_command		= qla24xx_abort_command,
2584 	.target_reset		= qla24xx_abort_target,
2585 	.lun_reset		= qla24xx_lun_reset,
2586 	.fabric_login		= qla24xx_login_fabric,
2587 	.fabric_logout		= qla24xx_fabric_logout,
2588 	.calc_req_entries	= NULL,
2589 	.build_iocbs		= NULL,
2590 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2591 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2592 	.read_nvram		= NULL,
2593 	.write_nvram		= NULL,
2594 	.fw_dump		= qla27xx_fwdump,
2595 	.mpi_fw_dump		= qla27xx_mpi_fwdump,
2596 	.beacon_on		= qla24xx_beacon_on,
2597 	.beacon_off		= qla24xx_beacon_off,
2598 	.beacon_blink		= qla83xx_beacon_blink,
2599 	.read_optrom		= qla25xx_read_optrom_data,
2600 	.write_optrom		= qla24xx_write_optrom_data,
2601 	.get_flash_version	= qla24xx_get_flash_version,
2602 	.start_scsi		= qla24xx_dif_start_scsi,
2603 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2604 	.abort_isp		= qla2x00_abort_isp,
2605 	.iospace_config		= qla83xx_iospace_config,
2606 	.initialize_adapter	= qla2x00_initialize_adapter,
2607 };
2608 
2609 static inline void
2610 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2611 {
2612 	ha->device_type = DT_EXTENDED_IDS;
2613 	switch (ha->pdev->device) {
2614 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2615 		ha->isp_type |= DT_ISP2100;
2616 		ha->device_type &= ~DT_EXTENDED_IDS;
2617 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2618 		break;
2619 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2620 		ha->isp_type |= DT_ISP2200;
2621 		ha->device_type &= ~DT_EXTENDED_IDS;
2622 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2623 		break;
2624 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2625 		ha->isp_type |= DT_ISP2300;
2626 		ha->device_type |= DT_ZIO_SUPPORTED;
2627 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2628 		break;
2629 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2630 		ha->isp_type |= DT_ISP2312;
2631 		ha->device_type |= DT_ZIO_SUPPORTED;
2632 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2633 		break;
2634 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2635 		ha->isp_type |= DT_ISP2322;
2636 		ha->device_type |= DT_ZIO_SUPPORTED;
2637 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2638 		    ha->pdev->subsystem_device == 0x0170)
2639 			ha->device_type |= DT_OEM_001;
2640 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2641 		break;
2642 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2643 		ha->isp_type |= DT_ISP6312;
2644 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2645 		break;
2646 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2647 		ha->isp_type |= DT_ISP6322;
2648 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2649 		break;
2650 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2651 		ha->isp_type |= DT_ISP2422;
2652 		ha->device_type |= DT_ZIO_SUPPORTED;
2653 		ha->device_type |= DT_FWI2;
2654 		ha->device_type |= DT_IIDMA;
2655 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2656 		break;
2657 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2658 		ha->isp_type |= DT_ISP2432;
2659 		ha->device_type |= DT_ZIO_SUPPORTED;
2660 		ha->device_type |= DT_FWI2;
2661 		ha->device_type |= DT_IIDMA;
2662 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2663 		break;
2664 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2665 		ha->isp_type |= DT_ISP8432;
2666 		ha->device_type |= DT_ZIO_SUPPORTED;
2667 		ha->device_type |= DT_FWI2;
2668 		ha->device_type |= DT_IIDMA;
2669 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2670 		break;
2671 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2672 		ha->isp_type |= DT_ISP5422;
2673 		ha->device_type |= DT_FWI2;
2674 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2675 		break;
2676 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2677 		ha->isp_type |= DT_ISP5432;
2678 		ha->device_type |= DT_FWI2;
2679 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2680 		break;
2681 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2682 		ha->isp_type |= DT_ISP2532;
2683 		ha->device_type |= DT_ZIO_SUPPORTED;
2684 		ha->device_type |= DT_FWI2;
2685 		ha->device_type |= DT_IIDMA;
2686 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2687 		break;
2688 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2689 		ha->isp_type |= DT_ISP8001;
2690 		ha->device_type |= DT_ZIO_SUPPORTED;
2691 		ha->device_type |= DT_FWI2;
2692 		ha->device_type |= DT_IIDMA;
2693 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2694 		break;
2695 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2696 		ha->isp_type |= DT_ISP8021;
2697 		ha->device_type |= DT_ZIO_SUPPORTED;
2698 		ha->device_type |= DT_FWI2;
2699 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2700 		/* Initialize 82XX ISP flags */
2701 		qla82xx_init_flags(ha);
2702 		break;
2703 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2704 		ha->isp_type |= DT_ISP8044;
2705 		ha->device_type |= DT_ZIO_SUPPORTED;
2706 		ha->device_type |= DT_FWI2;
2707 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2708 		/* Initialize 82XX ISP flags */
2709 		qla82xx_init_flags(ha);
2710 		break;
2711 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2712 		ha->isp_type |= DT_ISP2031;
2713 		ha->device_type |= DT_ZIO_SUPPORTED;
2714 		ha->device_type |= DT_FWI2;
2715 		ha->device_type |= DT_IIDMA;
2716 		ha->device_type |= DT_T10_PI;
2717 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2718 		break;
2719 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2720 		ha->isp_type |= DT_ISP8031;
2721 		ha->device_type |= DT_ZIO_SUPPORTED;
2722 		ha->device_type |= DT_FWI2;
2723 		ha->device_type |= DT_IIDMA;
2724 		ha->device_type |= DT_T10_PI;
2725 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2726 		break;
2727 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2728 		ha->isp_type |= DT_ISPFX00;
2729 		break;
2730 	case PCI_DEVICE_ID_QLOGIC_ISP2071:
2731 		ha->isp_type |= DT_ISP2071;
2732 		ha->device_type |= DT_ZIO_SUPPORTED;
2733 		ha->device_type |= DT_FWI2;
2734 		ha->device_type |= DT_IIDMA;
2735 		ha->device_type |= DT_T10_PI;
2736 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2737 		break;
2738 	case PCI_DEVICE_ID_QLOGIC_ISP2271:
2739 		ha->isp_type |= DT_ISP2271;
2740 		ha->device_type |= DT_ZIO_SUPPORTED;
2741 		ha->device_type |= DT_FWI2;
2742 		ha->device_type |= DT_IIDMA;
2743 		ha->device_type |= DT_T10_PI;
2744 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2745 		break;
2746 	case PCI_DEVICE_ID_QLOGIC_ISP2261:
2747 		ha->isp_type |= DT_ISP2261;
2748 		ha->device_type |= DT_ZIO_SUPPORTED;
2749 		ha->device_type |= DT_FWI2;
2750 		ha->device_type |= DT_IIDMA;
2751 		ha->device_type |= DT_T10_PI;
2752 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2753 		break;
2754 	case PCI_DEVICE_ID_QLOGIC_ISP2081:
2755 	case PCI_DEVICE_ID_QLOGIC_ISP2089:
2756 		ha->isp_type |= DT_ISP2081;
2757 		ha->device_type |= DT_ZIO_SUPPORTED;
2758 		ha->device_type |= DT_FWI2;
2759 		ha->device_type |= DT_IIDMA;
2760 		ha->device_type |= DT_T10_PI;
2761 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2762 		break;
2763 	case PCI_DEVICE_ID_QLOGIC_ISP2281:
2764 	case PCI_DEVICE_ID_QLOGIC_ISP2289:
2765 		ha->isp_type |= DT_ISP2281;
2766 		ha->device_type |= DT_ZIO_SUPPORTED;
2767 		ha->device_type |= DT_FWI2;
2768 		ha->device_type |= DT_IIDMA;
2769 		ha->device_type |= DT_T10_PI;
2770 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2771 		break;
2772 	}
2773 
2774 	if (IS_QLA82XX(ha))
2775 		ha->port_no = ha->portnum & 1;
2776 	else {
2777 		/* Get adapter physical port no from interrupt pin register. */
2778 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2779 		if (IS_QLA25XX(ha) || IS_QLA2031(ha) ||
2780 		    IS_QLA27XX(ha) || IS_QLA28XX(ha))
2781 			ha->port_no--;
2782 		else
2783 			ha->port_no = !(ha->port_no & 1);
2784 	}
2785 
2786 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2787 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2788 	    ha->device_type, ha->port_no, ha->fw_srisc_address);
2789 }
2790 
2791 static void
2792 qla2xxx_scan_start(struct Scsi_Host *shost)
2793 {
2794 	scsi_qla_host_t *vha = shost_priv(shost);
2795 
2796 	if (vha->hw->flags.running_gold_fw)
2797 		return;
2798 
2799 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2800 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2801 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2802 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2803 }
2804 
2805 static int
2806 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2807 {
2808 	scsi_qla_host_t *vha = shost_priv(shost);
2809 
2810 	if (test_bit(UNLOADING, &vha->dpc_flags))
2811 		return 1;
2812 	if (!vha->host)
2813 		return 1;
2814 	if (time > vha->hw->loop_reset_delay * HZ)
2815 		return 1;
2816 
2817 	return atomic_read(&vha->loop_state) == LOOP_READY;
2818 }
2819 
2820 static void qla_heartbeat_work_fn(struct work_struct *work)
2821 {
2822 	struct qla_hw_data *ha = container_of(work,
2823 		struct qla_hw_data, heartbeat_work);
2824 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2825 
2826 	if (!ha->flags.mbox_busy && base_vha->flags.init_done)
2827 		qla_no_op_mb(base_vha);
2828 }
2829 
2830 static void qla2x00_iocb_work_fn(struct work_struct *work)
2831 {
2832 	struct scsi_qla_host *vha = container_of(work,
2833 		struct scsi_qla_host, iocb_work);
2834 	struct qla_hw_data *ha = vha->hw;
2835 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2836 	int i = 2;
2837 	unsigned long flags;
2838 
2839 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
2840 		return;
2841 
2842 	while (!list_empty(&vha->work_list) && i > 0) {
2843 		qla2x00_do_work(vha);
2844 		i--;
2845 	}
2846 
2847 	spin_lock_irqsave(&vha->work_lock, flags);
2848 	clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
2849 	spin_unlock_irqrestore(&vha->work_lock, flags);
2850 }
2851 
2852 /*
2853  * PCI driver interface
2854  */
2855 static int
2856 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2857 {
2858 	int	ret = -ENODEV;
2859 	struct Scsi_Host *host;
2860 	scsi_qla_host_t *base_vha = NULL;
2861 	struct qla_hw_data *ha;
2862 	char pci_info[30];
2863 	char fw_str[30], wq_name[30];
2864 	struct scsi_host_template *sht;
2865 	int bars, mem_only = 0;
2866 	uint16_t req_length = 0, rsp_length = 0;
2867 	struct req_que *req = NULL;
2868 	struct rsp_que *rsp = NULL;
2869 	int i;
2870 
2871 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2872 	sht = &qla2xxx_driver_template;
2873 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2874 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2875 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2876 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2877 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2878 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2879 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2880 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2881 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2882 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2883 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2884 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
2885 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
2886 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
2887 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261 ||
2888 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2081 ||
2889 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2281 ||
2890 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2089 ||
2891 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2289) {
2892 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2893 		mem_only = 1;
2894 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2895 		    "Mem only adapter.\n");
2896 	}
2897 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2898 	    "Bars=%d.\n", bars);
2899 
2900 	if (mem_only) {
2901 		if (pci_enable_device_mem(pdev))
2902 			return ret;
2903 	} else {
2904 		if (pci_enable_device(pdev))
2905 			return ret;
2906 	}
2907 
2908 	if (is_kdump_kernel()) {
2909 		ql2xmqsupport = 0;
2910 		ql2xallocfwdump = 0;
2911 	}
2912 
2913 	/* This may fail but that's ok */
2914 	pci_enable_pcie_error_reporting(pdev);
2915 
2916 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2917 	if (!ha) {
2918 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2919 		    "Unable to allocate memory for ha.\n");
2920 		goto disable_device;
2921 	}
2922 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2923 	    "Memory allocated for ha=%p.\n", ha);
2924 	ha->pdev = pdev;
2925 	INIT_LIST_HEAD(&ha->tgt.q_full_list);
2926 	spin_lock_init(&ha->tgt.q_full_lock);
2927 	spin_lock_init(&ha->tgt.sess_lock);
2928 	spin_lock_init(&ha->tgt.atio_lock);
2929 
2930 	spin_lock_init(&ha->sadb_lock);
2931 	INIT_LIST_HEAD(&ha->sadb_tx_index_list);
2932 	INIT_LIST_HEAD(&ha->sadb_rx_index_list);
2933 
2934 	spin_lock_init(&ha->sadb_fp_lock);
2935 
2936 	if (qla_edif_sadb_build_free_pool(ha)) {
2937 		kfree(ha);
2938 		goto  disable_device;
2939 	}
2940 
2941 	atomic_set(&ha->nvme_active_aen_cnt, 0);
2942 
2943 	/* Clear our data area */
2944 	ha->bars = bars;
2945 	ha->mem_only = mem_only;
2946 	spin_lock_init(&ha->hardware_lock);
2947 	spin_lock_init(&ha->vport_slock);
2948 	mutex_init(&ha->selflogin_lock);
2949 	mutex_init(&ha->optrom_mutex);
2950 
2951 	/* Set ISP-type information. */
2952 	qla2x00_set_isp_flags(ha);
2953 
2954 	/* Set EEH reset type to fundamental if required by hba */
2955 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2956 	    IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
2957 		pdev->needs_freset = 1;
2958 
2959 	ha->prev_topology = 0;
2960 	ha->init_cb_size = sizeof(init_cb_t);
2961 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
2962 	ha->optrom_size = OPTROM_SIZE_2300;
2963 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
2964 	atomic_set(&ha->num_pend_mbx_stage1, 0);
2965 	atomic_set(&ha->num_pend_mbx_stage2, 0);
2966 	atomic_set(&ha->num_pend_mbx_stage3, 0);
2967 	atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
2968 	ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
2969 
2970 	/* Assign ISP specific operations. */
2971 	if (IS_QLA2100(ha)) {
2972 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2973 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2974 		req_length = REQUEST_ENTRY_CNT_2100;
2975 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2976 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2977 		ha->gid_list_info_size = 4;
2978 		ha->flash_conf_off = ~0;
2979 		ha->flash_data_off = ~0;
2980 		ha->nvram_conf_off = ~0;
2981 		ha->nvram_data_off = ~0;
2982 		ha->isp_ops = &qla2100_isp_ops;
2983 	} else if (IS_QLA2200(ha)) {
2984 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2985 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2986 		req_length = REQUEST_ENTRY_CNT_2200;
2987 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2988 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2989 		ha->gid_list_info_size = 4;
2990 		ha->flash_conf_off = ~0;
2991 		ha->flash_data_off = ~0;
2992 		ha->nvram_conf_off = ~0;
2993 		ha->nvram_data_off = ~0;
2994 		ha->isp_ops = &qla2100_isp_ops;
2995 	} else if (IS_QLA23XX(ha)) {
2996 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2997 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2998 		req_length = REQUEST_ENTRY_CNT_2200;
2999 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3000 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3001 		ha->gid_list_info_size = 6;
3002 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
3003 			ha->optrom_size = OPTROM_SIZE_2322;
3004 		ha->flash_conf_off = ~0;
3005 		ha->flash_data_off = ~0;
3006 		ha->nvram_conf_off = ~0;
3007 		ha->nvram_data_off = ~0;
3008 		ha->isp_ops = &qla2300_isp_ops;
3009 	} else if (IS_QLA24XX_TYPE(ha)) {
3010 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3011 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3012 		req_length = REQUEST_ENTRY_CNT_24XX;
3013 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3014 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3015 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3016 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3017 		ha->gid_list_info_size = 8;
3018 		ha->optrom_size = OPTROM_SIZE_24XX;
3019 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
3020 		ha->isp_ops = &qla24xx_isp_ops;
3021 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3022 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3023 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3024 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3025 	} else if (IS_QLA25XX(ha)) {
3026 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3027 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3028 		req_length = REQUEST_ENTRY_CNT_24XX;
3029 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3030 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3031 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3032 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3033 		ha->gid_list_info_size = 8;
3034 		ha->optrom_size = OPTROM_SIZE_25XX;
3035 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3036 		ha->isp_ops = &qla25xx_isp_ops;
3037 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3038 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3039 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3040 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3041 	} else if (IS_QLA81XX(ha)) {
3042 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3043 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3044 		req_length = REQUEST_ENTRY_CNT_24XX;
3045 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3046 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3047 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3048 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3049 		ha->gid_list_info_size = 8;
3050 		ha->optrom_size = OPTROM_SIZE_81XX;
3051 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3052 		ha->isp_ops = &qla81xx_isp_ops;
3053 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3054 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3055 		ha->nvram_conf_off = ~0;
3056 		ha->nvram_data_off = ~0;
3057 	} else if (IS_QLA82XX(ha)) {
3058 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3059 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3060 		req_length = REQUEST_ENTRY_CNT_82XX;
3061 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3062 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3063 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3064 		ha->gid_list_info_size = 8;
3065 		ha->optrom_size = OPTROM_SIZE_82XX;
3066 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3067 		ha->isp_ops = &qla82xx_isp_ops;
3068 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3069 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3070 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3071 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3072 	} else if (IS_QLA8044(ha)) {
3073 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3074 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3075 		req_length = REQUEST_ENTRY_CNT_82XX;
3076 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3077 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3078 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3079 		ha->gid_list_info_size = 8;
3080 		ha->optrom_size = OPTROM_SIZE_83XX;
3081 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3082 		ha->isp_ops = &qla8044_isp_ops;
3083 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3084 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3085 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3086 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3087 	} else if (IS_QLA83XX(ha)) {
3088 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3089 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3090 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3091 		req_length = REQUEST_ENTRY_CNT_83XX;
3092 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3093 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3094 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3095 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3096 		ha->gid_list_info_size = 8;
3097 		ha->optrom_size = OPTROM_SIZE_83XX;
3098 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3099 		ha->isp_ops = &qla83xx_isp_ops;
3100 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3101 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3102 		ha->nvram_conf_off = ~0;
3103 		ha->nvram_data_off = ~0;
3104 	}  else if (IS_QLAFX00(ha)) {
3105 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
3106 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
3107 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
3108 		req_length = REQUEST_ENTRY_CNT_FX00;
3109 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
3110 		ha->isp_ops = &qlafx00_isp_ops;
3111 		ha->port_down_retry_count = 30; /* default value */
3112 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
3113 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
3114 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
3115 		ha->mr.fw_hbt_en = 1;
3116 		ha->mr.host_info_resend = false;
3117 		ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
3118 	} else if (IS_QLA27XX(ha)) {
3119 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3120 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3121 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3122 		req_length = REQUEST_ENTRY_CNT_83XX;
3123 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3124 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3125 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3126 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3127 		ha->gid_list_info_size = 8;
3128 		ha->optrom_size = OPTROM_SIZE_83XX;
3129 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3130 		ha->isp_ops = &qla27xx_isp_ops;
3131 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3132 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3133 		ha->nvram_conf_off = ~0;
3134 		ha->nvram_data_off = ~0;
3135 	} else if (IS_QLA28XX(ha)) {
3136 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3137 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3138 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3139 		req_length = REQUEST_ENTRY_CNT_83XX;
3140 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3141 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3142 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3143 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3144 		ha->gid_list_info_size = 8;
3145 		ha->optrom_size = OPTROM_SIZE_28XX;
3146 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3147 		ha->isp_ops = &qla27xx_isp_ops;
3148 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_28XX;
3149 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_28XX;
3150 		ha->nvram_conf_off = ~0;
3151 		ha->nvram_data_off = ~0;
3152 	}
3153 
3154 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
3155 	    "mbx_count=%d, req_length=%d, "
3156 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
3157 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
3158 	    "max_fibre_devices=%d.\n",
3159 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
3160 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
3161 	    ha->nvram_npiv_size, ha->max_fibre_devices);
3162 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
3163 	    "isp_ops=%p, flash_conf_off=%d, "
3164 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
3165 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
3166 	    ha->nvram_conf_off, ha->nvram_data_off);
3167 
3168 	/* Configure PCI I/O space */
3169 	ret = ha->isp_ops->iospace_config(ha);
3170 	if (ret)
3171 		goto iospace_config_failed;
3172 
3173 	ql_log_pci(ql_log_info, pdev, 0x001d,
3174 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
3175 	    pdev->device, pdev->irq, ha->iobase);
3176 	mutex_init(&ha->vport_lock);
3177 	mutex_init(&ha->mq_lock);
3178 	init_completion(&ha->mbx_cmd_comp);
3179 	complete(&ha->mbx_cmd_comp);
3180 	init_completion(&ha->mbx_intr_comp);
3181 	init_completion(&ha->dcbx_comp);
3182 	init_completion(&ha->lb_portup_comp);
3183 
3184 	set_bit(0, (unsigned long *) ha->vp_idx_map);
3185 
3186 	qla2x00_config_dma_addressing(ha);
3187 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
3188 	    "64 Bit addressing is %s.\n",
3189 	    ha->flags.enable_64bit_addressing ? "enable" :
3190 	    "disable");
3191 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
3192 	if (ret) {
3193 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
3194 		    "Failed to allocate memory for adapter, aborting.\n");
3195 
3196 		goto probe_hw_failed;
3197 	}
3198 
3199 	req->max_q_depth = MAX_Q_DEPTH;
3200 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
3201 		req->max_q_depth = ql2xmaxqdepth;
3202 
3203 
3204 	base_vha = qla2x00_create_host(sht, ha);
3205 	if (!base_vha) {
3206 		ret = -ENOMEM;
3207 		goto probe_hw_failed;
3208 	}
3209 
3210 	pci_set_drvdata(pdev, base_vha);
3211 	set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3212 
3213 	host = base_vha->host;
3214 	base_vha->req = req;
3215 	if (IS_QLA2XXX_MIDTYPE(ha))
3216 		base_vha->mgmt_svr_loop_id =
3217 			qla2x00_reserve_mgmt_server_loop_id(base_vha);
3218 	else
3219 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
3220 						base_vha->vp_idx;
3221 
3222 	/* Setup fcport template structure. */
3223 	ha->mr.fcport.vha = base_vha;
3224 	ha->mr.fcport.port_type = FCT_UNKNOWN;
3225 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
3226 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
3227 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
3228 	ha->mr.fcport.scan_state = 1;
3229 
3230 	qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
3231 			    QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
3232 			    QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
3233 
3234 	/* Set the SG table size based on ISP type */
3235 	if (!IS_FWI2_CAPABLE(ha)) {
3236 		if (IS_QLA2100(ha))
3237 			host->sg_tablesize = 32;
3238 	} else {
3239 		if (!IS_QLA82XX(ha))
3240 			host->sg_tablesize = QLA_SG_ALL;
3241 	}
3242 	host->max_id = ha->max_fibre_devices;
3243 	host->cmd_per_lun = 3;
3244 	host->unique_id = host->host_no;
3245 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
3246 		host->max_cmd_len = 32;
3247 	else
3248 		host->max_cmd_len = MAX_CMDSZ;
3249 	host->max_channel = MAX_BUSES - 1;
3250 	/* Older HBAs support only 16-bit LUNs */
3251 	if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
3252 	    ql2xmaxlun > 0xffff)
3253 		host->max_lun = 0xffff;
3254 	else
3255 		host->max_lun = ql2xmaxlun;
3256 	host->transportt = qla2xxx_transport_template;
3257 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
3258 
3259 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
3260 	    "max_id=%d this_id=%d "
3261 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
3262 	    "max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
3263 	    host->this_id, host->cmd_per_lun, host->unique_id,
3264 	    host->max_cmd_len, host->max_channel, host->max_lun,
3265 	    host->transportt, sht->vendor_id);
3266 
3267 	INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn);
3268 	INIT_WORK(&ha->heartbeat_work, qla_heartbeat_work_fn);
3269 
3270 	/* Set up the irqs */
3271 	ret = qla2x00_request_irqs(ha, rsp);
3272 	if (ret)
3273 		goto probe_failed;
3274 
3275 	/* Alloc arrays of request and response ring ptrs */
3276 	ret = qla2x00_alloc_queues(ha, req, rsp);
3277 	if (ret) {
3278 		ql_log(ql_log_fatal, base_vha, 0x003d,
3279 		    "Failed to allocate memory for queue pointers..."
3280 		    "aborting.\n");
3281 		ret = -ENODEV;
3282 		goto probe_failed;
3283 	}
3284 
3285 	if (ha->mqenable) {
3286 		/* number of hardware queues supported by blk/scsi-mq*/
3287 		host->nr_hw_queues = ha->max_qpairs;
3288 
3289 		ql_dbg(ql_dbg_init, base_vha, 0x0192,
3290 			"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
3291 	} else {
3292 		if (ql2xnvmeenable) {
3293 			host->nr_hw_queues = ha->max_qpairs;
3294 			ql_dbg(ql_dbg_init, base_vha, 0x0194,
3295 			    "FC-NVMe support is enabled, HW queues=%d\n",
3296 			    host->nr_hw_queues);
3297 		} else {
3298 			ql_dbg(ql_dbg_init, base_vha, 0x0193,
3299 			    "blk/scsi-mq disabled.\n");
3300 		}
3301 	}
3302 
3303 	qlt_probe_one_stage1(base_vha, ha);
3304 
3305 	pci_save_state(pdev);
3306 
3307 	/* Assign back pointers */
3308 	rsp->req = req;
3309 	req->rsp = rsp;
3310 
3311 	if (IS_QLAFX00(ha)) {
3312 		ha->rsp_q_map[0] = rsp;
3313 		ha->req_q_map[0] = req;
3314 		set_bit(0, ha->req_qid_map);
3315 		set_bit(0, ha->rsp_qid_map);
3316 	}
3317 
3318 	/* FWI2-capable only. */
3319 	req->req_q_in = &ha->iobase->isp24.req_q_in;
3320 	req->req_q_out = &ha->iobase->isp24.req_q_out;
3321 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
3322 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
3323 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3324 	    IS_QLA28XX(ha)) {
3325 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
3326 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
3327 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
3328 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
3329 	}
3330 
3331 	if (IS_QLAFX00(ha)) {
3332 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
3333 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
3334 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
3335 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
3336 	}
3337 
3338 	if (IS_P3P_TYPE(ha)) {
3339 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
3340 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
3341 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
3342 	}
3343 
3344 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
3345 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3346 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3347 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
3348 	    "req->req_q_in=%p req->req_q_out=%p "
3349 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3350 	    req->req_q_in, req->req_q_out,
3351 	    rsp->rsp_q_in, rsp->rsp_q_out);
3352 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
3353 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3354 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3355 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
3356 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3357 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
3358 
3359 	ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
3360 	if (unlikely(!ha->wq)) {
3361 		ret = -ENOMEM;
3362 		goto probe_failed;
3363 	}
3364 
3365 	if (ha->isp_ops->initialize_adapter(base_vha)) {
3366 		ql_log(ql_log_fatal, base_vha, 0x00d6,
3367 		    "Failed to initialize adapter - Adapter flags %x.\n",
3368 		    base_vha->device_flags);
3369 
3370 		if (IS_QLA82XX(ha)) {
3371 			qla82xx_idc_lock(ha);
3372 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3373 				QLA8XXX_DEV_FAILED);
3374 			qla82xx_idc_unlock(ha);
3375 			ql_log(ql_log_fatal, base_vha, 0x00d7,
3376 			    "HW State: FAILED.\n");
3377 		} else if (IS_QLA8044(ha)) {
3378 			qla8044_idc_lock(ha);
3379 			qla8044_wr_direct(base_vha,
3380 				QLA8044_CRB_DEV_STATE_INDEX,
3381 				QLA8XXX_DEV_FAILED);
3382 			qla8044_idc_unlock(ha);
3383 			ql_log(ql_log_fatal, base_vha, 0x0150,
3384 			    "HW State: FAILED.\n");
3385 		}
3386 
3387 		ret = -ENODEV;
3388 		goto probe_failed;
3389 	}
3390 
3391 	if (IS_QLAFX00(ha))
3392 		host->can_queue = QLAFX00_MAX_CANQUEUE;
3393 	else
3394 		host->can_queue = req->num_outstanding_cmds - 10;
3395 
3396 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
3397 	    "can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
3398 	    host->can_queue, base_vha->req,
3399 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
3400 
3401 	/* Check if FW supports MQ or not for ISP25xx */
3402 	if (IS_QLA25XX(ha) && !(ha->fw_attributes & BIT_6))
3403 		ha->mqenable = 0;
3404 
3405 	if (ha->mqenable) {
3406 		bool startit = false;
3407 
3408 		if (QLA_TGT_MODE_ENABLED())
3409 			startit = false;
3410 
3411 		if (ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED)
3412 			startit = true;
3413 
3414 		/* Create start of day qpairs for Block MQ */
3415 		for (i = 0; i < ha->max_qpairs; i++)
3416 			qla2xxx_create_qpair(base_vha, 5, 0, startit);
3417 	}
3418 	qla_init_iocb_limit(base_vha);
3419 
3420 	if (ha->flags.running_gold_fw)
3421 		goto skip_dpc;
3422 
3423 	/*
3424 	 * Startup the kernel thread for this host adapter
3425 	 */
3426 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
3427 	    "%s_dpc", base_vha->host_str);
3428 	if (IS_ERR(ha->dpc_thread)) {
3429 		ql_log(ql_log_fatal, base_vha, 0x00ed,
3430 		    "Failed to start DPC thread.\n");
3431 		ret = PTR_ERR(ha->dpc_thread);
3432 		ha->dpc_thread = NULL;
3433 		goto probe_failed;
3434 	}
3435 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
3436 	    "DPC thread started successfully.\n");
3437 
3438 	/*
3439 	 * If we're not coming up in initiator mode, we might sit for
3440 	 * a while without waking up the dpc thread, which leads to a
3441 	 * stuck process warning.  So just kick the dpc once here and
3442 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
3443 	 */
3444 	qla2xxx_wake_dpc(base_vha);
3445 
3446 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
3447 
3448 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
3449 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
3450 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
3451 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
3452 
3453 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
3454 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
3455 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
3456 		INIT_WORK(&ha->idc_state_handler,
3457 		    qla83xx_idc_state_handler_work);
3458 		INIT_WORK(&ha->nic_core_unrecoverable,
3459 		    qla83xx_nic_core_unrecoverable_work);
3460 	}
3461 
3462 skip_dpc:
3463 	list_add_tail(&base_vha->list, &ha->vp_list);
3464 	base_vha->host->irq = ha->pdev->irq;
3465 
3466 	/* Initialized the timer */
3467 	qla2x00_start_timer(base_vha, WATCH_INTERVAL);
3468 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
3469 	    "Started qla2x00_timer with "
3470 	    "interval=%d.\n", WATCH_INTERVAL);
3471 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
3472 	    "Detected hba at address=%p.\n",
3473 	    ha);
3474 
3475 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
3476 		if (ha->fw_attributes & BIT_4) {
3477 			int prot = 0, guard;
3478 
3479 			base_vha->flags.difdix_supported = 1;
3480 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
3481 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3482 			if (ql2xenabledif == 1)
3483 				prot = SHOST_DIX_TYPE0_PROTECTION;
3484 			if (ql2xprotmask)
3485 				scsi_host_set_prot(host, ql2xprotmask);
3486 			else
3487 				scsi_host_set_prot(host,
3488 				    prot | SHOST_DIF_TYPE1_PROTECTION
3489 				    | SHOST_DIF_TYPE2_PROTECTION
3490 				    | SHOST_DIF_TYPE3_PROTECTION
3491 				    | SHOST_DIX_TYPE1_PROTECTION
3492 				    | SHOST_DIX_TYPE2_PROTECTION
3493 				    | SHOST_DIX_TYPE3_PROTECTION);
3494 
3495 			guard = SHOST_DIX_GUARD_CRC;
3496 
3497 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
3498 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
3499 				guard |= SHOST_DIX_GUARD_IP;
3500 
3501 			if (ql2xprotguard)
3502 				scsi_host_set_guard(host, ql2xprotguard);
3503 			else
3504 				scsi_host_set_guard(host, guard);
3505 		} else
3506 			base_vha->flags.difdix_supported = 0;
3507 	}
3508 
3509 	ha->isp_ops->enable_intrs(ha);
3510 
3511 	if (IS_QLAFX00(ha)) {
3512 		ret = qlafx00_fx_disc(base_vha,
3513 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
3514 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
3515 		    QLA_SG_ALL : 128;
3516 	}
3517 
3518 	ret = scsi_add_host(host, &pdev->dev);
3519 	if (ret)
3520 		goto probe_failed;
3521 
3522 	base_vha->flags.init_done = 1;
3523 	base_vha->flags.online = 1;
3524 	ha->prev_minidump_failed = 0;
3525 
3526 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
3527 	    "Init done and hba is online.\n");
3528 
3529 	if (qla_ini_mode_enabled(base_vha) ||
3530 		qla_dual_mode_enabled(base_vha))
3531 		scsi_scan_host(host);
3532 	else
3533 		ql_dbg(ql_dbg_init, base_vha, 0x0122,
3534 			"skipping scsi_scan_host() for non-initiator port\n");
3535 
3536 	qla2x00_alloc_sysfs_attr(base_vha);
3537 
3538 	if (IS_QLAFX00(ha)) {
3539 		ret = qlafx00_fx_disc(base_vha,
3540 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
3541 
3542 		/* Register system information */
3543 		ret =  qlafx00_fx_disc(base_vha,
3544 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
3545 	}
3546 
3547 	qla2x00_init_host_attr(base_vha);
3548 
3549 	qla2x00_dfs_setup(base_vha);
3550 
3551 	ql_log(ql_log_info, base_vha, 0x00fb,
3552 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
3553 	ql_log(ql_log_info, base_vha, 0x00fc,
3554 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
3555 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info,
3556 						       sizeof(pci_info)),
3557 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
3558 	    base_vha->host_no,
3559 	    ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
3560 
3561 	qlt_add_target(ha, base_vha);
3562 
3563 	clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3564 
3565 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3566 		return -ENODEV;
3567 
3568 	return 0;
3569 
3570 probe_failed:
3571 	qla_enode_stop(base_vha);
3572 	qla_edb_stop(base_vha);
3573 	if (base_vha->gnl.l) {
3574 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3575 				base_vha->gnl.l, base_vha->gnl.ldma);
3576 		base_vha->gnl.l = NULL;
3577 	}
3578 
3579 	if (base_vha->timer_active)
3580 		qla2x00_stop_timer(base_vha);
3581 	base_vha->flags.online = 0;
3582 	if (ha->dpc_thread) {
3583 		struct task_struct *t = ha->dpc_thread;
3584 
3585 		ha->dpc_thread = NULL;
3586 		kthread_stop(t);
3587 	}
3588 
3589 	qla2x00_free_device(base_vha);
3590 	scsi_host_put(base_vha->host);
3591 	/*
3592 	 * Need to NULL out local req/rsp after
3593 	 * qla2x00_free_device => qla2x00_free_queues frees
3594 	 * what these are pointing to. Or else we'll
3595 	 * fall over below in qla2x00_free_req/rsp_que.
3596 	 */
3597 	req = NULL;
3598 	rsp = NULL;
3599 
3600 probe_hw_failed:
3601 	qla2x00_mem_free(ha);
3602 	qla2x00_free_req_que(ha, req);
3603 	qla2x00_free_rsp_que(ha, rsp);
3604 	qla2x00_clear_drv_active(ha);
3605 
3606 iospace_config_failed:
3607 	if (IS_P3P_TYPE(ha)) {
3608 		if (!ha->nx_pcibase)
3609 			iounmap((device_reg_t *)ha->nx_pcibase);
3610 		if (!ql2xdbwr)
3611 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3612 	} else {
3613 		if (ha->iobase)
3614 			iounmap(ha->iobase);
3615 		if (ha->cregbase)
3616 			iounmap(ha->cregbase);
3617 	}
3618 	pci_release_selected_regions(ha->pdev, ha->bars);
3619 	kfree(ha);
3620 
3621 disable_device:
3622 	pci_disable_device(pdev);
3623 	return ret;
3624 }
3625 
3626 static void __qla_set_remove_flag(scsi_qla_host_t *base_vha)
3627 {
3628 	scsi_qla_host_t *vp;
3629 	unsigned long flags;
3630 	struct qla_hw_data *ha;
3631 
3632 	if (!base_vha)
3633 		return;
3634 
3635 	ha = base_vha->hw;
3636 
3637 	spin_lock_irqsave(&ha->vport_slock, flags);
3638 	list_for_each_entry(vp, &ha->vp_list, list)
3639 		set_bit(PFLG_DRIVER_REMOVING, &vp->pci_flags);
3640 
3641 	/*
3642 	 * Indicate device removal to prevent future board_disable
3643 	 * and wait until any pending board_disable has completed.
3644 	 */
3645 	set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
3646 	spin_unlock_irqrestore(&ha->vport_slock, flags);
3647 }
3648 
3649 static void
3650 qla2x00_shutdown(struct pci_dev *pdev)
3651 {
3652 	scsi_qla_host_t *vha;
3653 	struct qla_hw_data  *ha;
3654 
3655 	vha = pci_get_drvdata(pdev);
3656 	ha = vha->hw;
3657 
3658 	ql_log(ql_log_info, vha, 0xfffa,
3659 		"Adapter shutdown\n");
3660 
3661 	/*
3662 	 * Prevent future board_disable and wait
3663 	 * until any pending board_disable has completed.
3664 	 */
3665 	__qla_set_remove_flag(vha);
3666 	cancel_work_sync(&ha->board_disable);
3667 
3668 	if (!atomic_read(&pdev->enable_cnt))
3669 		return;
3670 
3671 	/* Notify ISPFX00 firmware */
3672 	if (IS_QLAFX00(ha))
3673 		qlafx00_driver_shutdown(vha, 20);
3674 
3675 	/* Turn-off FCE trace */
3676 	if (ha->flags.fce_enabled) {
3677 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3678 		ha->flags.fce_enabled = 0;
3679 	}
3680 
3681 	/* Turn-off EFT trace */
3682 	if (ha->eft)
3683 		qla2x00_disable_eft_trace(vha);
3684 
3685 	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3686 	    IS_QLA28XX(ha)) {
3687 		if (ha->flags.fw_started)
3688 			qla2x00_abort_isp_cleanup(vha);
3689 	} else {
3690 		/* Stop currently executing firmware. */
3691 		qla2x00_try_to_stop_firmware(vha);
3692 	}
3693 
3694 	/* Disable timer */
3695 	if (vha->timer_active)
3696 		qla2x00_stop_timer(vha);
3697 
3698 	/* Turn adapter off line */
3699 	vha->flags.online = 0;
3700 
3701 	/* turn-off interrupts on the card */
3702 	if (ha->interrupts_on) {
3703 		vha->flags.init_done = 0;
3704 		ha->isp_ops->disable_intrs(ha);
3705 	}
3706 
3707 	qla2x00_free_irqs(vha);
3708 
3709 	qla2x00_free_fw_dump(ha);
3710 
3711 	pci_disable_device(pdev);
3712 	ql_log(ql_log_info, vha, 0xfffe,
3713 		"Adapter shutdown successfully.\n");
3714 }
3715 
3716 /* Deletes all the virtual ports for a given ha */
3717 static void
3718 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
3719 {
3720 	scsi_qla_host_t *vha;
3721 	unsigned long flags;
3722 
3723 	mutex_lock(&ha->vport_lock);
3724 	while (ha->cur_vport_count) {
3725 		spin_lock_irqsave(&ha->vport_slock, flags);
3726 
3727 		BUG_ON(base_vha->list.next == &ha->vp_list);
3728 		/* This assumes first entry in ha->vp_list is always base vha */
3729 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3730 		scsi_host_get(vha->host);
3731 
3732 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3733 		mutex_unlock(&ha->vport_lock);
3734 
3735 		qla_nvme_delete(vha);
3736 
3737 		fc_vport_terminate(vha->fc_vport);
3738 		scsi_host_put(vha->host);
3739 
3740 		mutex_lock(&ha->vport_lock);
3741 	}
3742 	mutex_unlock(&ha->vport_lock);
3743 }
3744 
3745 /* Stops all deferred work threads */
3746 static void
3747 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
3748 {
3749 	/* Cancel all work and destroy DPC workqueues */
3750 	if (ha->dpc_lp_wq) {
3751 		cancel_work_sync(&ha->idc_aen);
3752 		destroy_workqueue(ha->dpc_lp_wq);
3753 		ha->dpc_lp_wq = NULL;
3754 	}
3755 
3756 	if (ha->dpc_hp_wq) {
3757 		cancel_work_sync(&ha->nic_core_reset);
3758 		cancel_work_sync(&ha->idc_state_handler);
3759 		cancel_work_sync(&ha->nic_core_unrecoverable);
3760 		destroy_workqueue(ha->dpc_hp_wq);
3761 		ha->dpc_hp_wq = NULL;
3762 	}
3763 
3764 	/* Kill the kernel thread for this host */
3765 	if (ha->dpc_thread) {
3766 		struct task_struct *t = ha->dpc_thread;
3767 
3768 		/*
3769 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3770 		 * so we need to zero it out.
3771 		 */
3772 		ha->dpc_thread = NULL;
3773 		kthread_stop(t);
3774 	}
3775 }
3776 
3777 static void
3778 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3779 {
3780 	if (IS_QLA82XX(ha)) {
3781 
3782 		iounmap((device_reg_t *)ha->nx_pcibase);
3783 		if (!ql2xdbwr)
3784 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3785 	} else {
3786 		if (ha->iobase)
3787 			iounmap(ha->iobase);
3788 
3789 		if (ha->cregbase)
3790 			iounmap(ha->cregbase);
3791 
3792 		if (ha->mqiobase)
3793 			iounmap(ha->mqiobase);
3794 
3795 		if (ha->msixbase)
3796 			iounmap(ha->msixbase);
3797 	}
3798 }
3799 
3800 static void
3801 qla2x00_clear_drv_active(struct qla_hw_data *ha)
3802 {
3803 	if (IS_QLA8044(ha)) {
3804 		qla8044_idc_lock(ha);
3805 		qla8044_clear_drv_active(ha);
3806 		qla8044_idc_unlock(ha);
3807 	} else if (IS_QLA82XX(ha)) {
3808 		qla82xx_idc_lock(ha);
3809 		qla82xx_clear_drv_active(ha);
3810 		qla82xx_idc_unlock(ha);
3811 	}
3812 }
3813 
3814 static void
3815 qla2x00_remove_one(struct pci_dev *pdev)
3816 {
3817 	scsi_qla_host_t *base_vha;
3818 	struct qla_hw_data  *ha;
3819 
3820 	base_vha = pci_get_drvdata(pdev);
3821 	ha = base_vha->hw;
3822 	ql_log(ql_log_info, base_vha, 0xb079,
3823 	    "Removing driver\n");
3824 	__qla_set_remove_flag(base_vha);
3825 	cancel_work_sync(&ha->board_disable);
3826 
3827 	/*
3828 	 * If the PCI device is disabled then there was a PCI-disconnect and
3829 	 * qla2x00_disable_board_on_pci_error has taken care of most of the
3830 	 * resources.
3831 	 */
3832 	if (!atomic_read(&pdev->enable_cnt)) {
3833 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3834 		    base_vha->gnl.l, base_vha->gnl.ldma);
3835 		base_vha->gnl.l = NULL;
3836 		scsi_host_put(base_vha->host);
3837 		kfree(ha);
3838 		pci_set_drvdata(pdev, NULL);
3839 		return;
3840 	}
3841 	qla2x00_wait_for_hba_ready(base_vha);
3842 
3843 	/*
3844 	 * if UNLOADING flag is already set, then continue unload,
3845 	 * where it was set first.
3846 	 */
3847 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
3848 		return;
3849 
3850 	if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3851 	    IS_QLA28XX(ha)) {
3852 		if (ha->flags.fw_started)
3853 			qla2x00_abort_isp_cleanup(base_vha);
3854 	} else if (!IS_QLAFX00(ha)) {
3855 		if (IS_QLA8031(ha)) {
3856 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3857 			    "Clearing fcoe driver presence.\n");
3858 			if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3859 				ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3860 				    "Error while clearing DRV-Presence.\n");
3861 		}
3862 
3863 		qla2x00_try_to_stop_firmware(base_vha);
3864 	}
3865 
3866 	qla2x00_wait_for_sess_deletion(base_vha);
3867 
3868 	qla_nvme_delete(base_vha);
3869 
3870 	dma_free_coherent(&ha->pdev->dev,
3871 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
3872 
3873 	base_vha->gnl.l = NULL;
3874 	qla_enode_stop(base_vha);
3875 	qla_edb_stop(base_vha);
3876 
3877 	vfree(base_vha->scan.l);
3878 
3879 	if (IS_QLAFX00(ha))
3880 		qlafx00_driver_shutdown(base_vha, 20);
3881 
3882 	qla2x00_delete_all_vps(ha, base_vha);
3883 
3884 	qla2x00_dfs_remove(base_vha);
3885 
3886 	qla84xx_put_chip(base_vha);
3887 
3888 	/* Disable timer */
3889 	if (base_vha->timer_active)
3890 		qla2x00_stop_timer(base_vha);
3891 
3892 	base_vha->flags.online = 0;
3893 
3894 	/* free DMA memory */
3895 	if (ha->exlogin_buf)
3896 		qla2x00_free_exlogin_buffer(ha);
3897 
3898 	/* free DMA memory */
3899 	if (ha->exchoffld_buf)
3900 		qla2x00_free_exchoffld_buffer(ha);
3901 
3902 	qla2x00_destroy_deferred_work(ha);
3903 
3904 	qlt_remove_target(ha, base_vha);
3905 
3906 	qla2x00_free_sysfs_attr(base_vha, true);
3907 
3908 	fc_remove_host(base_vha->host);
3909 
3910 	scsi_remove_host(base_vha->host);
3911 
3912 	qla2x00_free_device(base_vha);
3913 
3914 	qla2x00_clear_drv_active(ha);
3915 
3916 	scsi_host_put(base_vha->host);
3917 
3918 	qla2x00_unmap_iobases(ha);
3919 
3920 	pci_release_selected_regions(ha->pdev, ha->bars);
3921 	kfree(ha);
3922 
3923 	pci_disable_pcie_error_reporting(pdev);
3924 
3925 	pci_disable_device(pdev);
3926 }
3927 
3928 static inline void
3929 qla24xx_free_purex_list(struct purex_list *list)
3930 {
3931 	struct purex_item *item, *next;
3932 	ulong flags;
3933 
3934 	spin_lock_irqsave(&list->lock, flags);
3935 	list_for_each_entry_safe(item, next, &list->head, list) {
3936 		list_del(&item->list);
3937 		if (item == &item->vha->default_item)
3938 			continue;
3939 		kfree(item);
3940 	}
3941 	spin_unlock_irqrestore(&list->lock, flags);
3942 }
3943 
3944 static void
3945 qla2x00_free_device(scsi_qla_host_t *vha)
3946 {
3947 	struct qla_hw_data *ha = vha->hw;
3948 
3949 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3950 
3951 	/* Disable timer */
3952 	if (vha->timer_active)
3953 		qla2x00_stop_timer(vha);
3954 
3955 	qla25xx_delete_queues(vha);
3956 	vha->flags.online = 0;
3957 
3958 	/* turn-off interrupts on the card */
3959 	if (ha->interrupts_on) {
3960 		vha->flags.init_done = 0;
3961 		ha->isp_ops->disable_intrs(ha);
3962 	}
3963 
3964 	qla2x00_free_fcports(vha);
3965 
3966 	qla2x00_free_irqs(vha);
3967 
3968 	/* Flush the work queue and remove it */
3969 	if (ha->wq) {
3970 		destroy_workqueue(ha->wq);
3971 		ha->wq = NULL;
3972 	}
3973 
3974 
3975 	qla24xx_free_purex_list(&vha->purex_list);
3976 
3977 	qla2x00_mem_free(ha);
3978 
3979 	qla82xx_md_free(vha);
3980 
3981 	qla_edif_sadb_release_free_pool(ha);
3982 	qla_edif_sadb_release(ha);
3983 
3984 	qla2x00_free_queues(ha);
3985 }
3986 
3987 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3988 {
3989 	fc_port_t *fcport, *tfcport;
3990 
3991 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list)
3992 		qla2x00_free_fcport(fcport);
3993 }
3994 
3995 static inline void
3996 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport)
3997 {
3998 	int now;
3999 
4000 	if (!fcport->rport)
4001 		return;
4002 
4003 	if (fcport->rport) {
4004 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2109,
4005 		    "%s %8phN. rport %p roles %x\n",
4006 		    __func__, fcport->port_name, fcport->rport,
4007 		    fcport->rport->roles);
4008 		fc_remote_port_delete(fcport->rport);
4009 	}
4010 	qlt_do_generation_tick(vha, &now);
4011 }
4012 
4013 /*
4014  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
4015  *
4016  * Input: ha = adapter block pointer.  fcport = port structure pointer.
4017  *
4018  * Return: None.
4019  *
4020  * Context:
4021  */
4022 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
4023     int do_login)
4024 {
4025 	if (IS_QLAFX00(vha->hw)) {
4026 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4027 		qla2x00_schedule_rport_del(vha, fcport);
4028 		return;
4029 	}
4030 
4031 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
4032 	    vha->vp_idx == fcport->vha->vp_idx) {
4033 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4034 		qla2x00_schedule_rport_del(vha, fcport);
4035 	}
4036 
4037 	/*
4038 	 * We may need to retry the login, so don't change the state of the
4039 	 * port but do the retries.
4040 	 */
4041 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
4042 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4043 
4044 	if (!do_login)
4045 		return;
4046 
4047 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4048 }
4049 
4050 void
4051 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha)
4052 {
4053 	fc_port_t *fcport;
4054 
4055 	ql_dbg(ql_dbg_disc, vha, 0x20f1,
4056 	    "Mark all dev lost\n");
4057 
4058 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4059 		if (fcport->loop_id != FC_NO_LOOP_ID &&
4060 		    (fcport->flags & FCF_FCP2_DEVICE) &&
4061 		    fcport->port_type == FCT_TARGET &&
4062 		    !qla2x00_reset_active(vha)) {
4063 			ql_dbg(ql_dbg_disc, vha, 0x211a,
4064 			       "Delaying session delete for FCP2 flags 0x%x port_type = 0x%x port_id=%06x %phC",
4065 			       fcport->flags, fcport->port_type,
4066 			       fcport->d_id.b24, fcport->port_name);
4067 			continue;
4068 		}
4069 		fcport->scan_state = 0;
4070 		qlt_schedule_sess_for_deletion(fcport);
4071 	}
4072 }
4073 
4074 static void qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
4075 {
4076 	int i;
4077 
4078 	if (IS_FWI2_CAPABLE(ha))
4079 		return;
4080 
4081 	for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
4082 		set_bit(i, ha->loop_id_map);
4083 	set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
4084 	set_bit(BROADCAST, ha->loop_id_map);
4085 }
4086 
4087 /*
4088 * qla2x00_mem_alloc
4089 *      Allocates adapter memory.
4090 *
4091 * Returns:
4092 *      0  = success.
4093 *      !0  = failure.
4094 */
4095 static int
4096 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
4097 	struct req_que **req, struct rsp_que **rsp)
4098 {
4099 	char	name[16];
4100 	int rc;
4101 
4102 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
4103 		&ha->init_cb_dma, GFP_KERNEL);
4104 	if (!ha->init_cb)
4105 		goto fail;
4106 
4107 	rc = btree_init32(&ha->host_map);
4108 	if (rc)
4109 		goto fail_free_init_cb;
4110 
4111 	if (qlt_mem_alloc(ha) < 0)
4112 		goto fail_free_btree;
4113 
4114 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
4115 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
4116 	if (!ha->gid_list)
4117 		goto fail_free_tgt_mem;
4118 
4119 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
4120 	if (!ha->srb_mempool)
4121 		goto fail_free_gid_list;
4122 
4123 	if (IS_P3P_TYPE(ha) || IS_QLA27XX(ha) || (ql2xsecenable && IS_QLA28XX(ha))) {
4124 		/* Allocate cache for CT6 Ctx. */
4125 		if (!ctx_cachep) {
4126 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
4127 				sizeof(struct ct6_dsd), 0,
4128 				SLAB_HWCACHE_ALIGN, NULL);
4129 			if (!ctx_cachep)
4130 				goto fail_free_srb_mempool;
4131 		}
4132 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
4133 			ctx_cachep);
4134 		if (!ha->ctx_mempool)
4135 			goto fail_free_srb_mempool;
4136 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
4137 		    "ctx_cachep=%p ctx_mempool=%p.\n",
4138 		    ctx_cachep, ha->ctx_mempool);
4139 	}
4140 
4141 	/* Get memory for cached NVRAM */
4142 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
4143 	if (!ha->nvram)
4144 		goto fail_free_ctx_mempool;
4145 
4146 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
4147 		ha->pdev->device);
4148 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4149 		DMA_POOL_SIZE, 8, 0);
4150 	if (!ha->s_dma_pool)
4151 		goto fail_free_nvram;
4152 
4153 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
4154 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
4155 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
4156 
4157 	if (IS_P3P_TYPE(ha) || ql2xenabledif || (IS_QLA28XX(ha) && ql2xsecenable)) {
4158 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4159 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
4160 		if (!ha->dl_dma_pool) {
4161 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
4162 			    "Failed to allocate memory for dl_dma_pool.\n");
4163 			goto fail_s_dma_pool;
4164 		}
4165 
4166 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4167 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
4168 		if (!ha->fcp_cmnd_dma_pool) {
4169 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
4170 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
4171 			goto fail_dl_dma_pool;
4172 		}
4173 
4174 		if (ql2xenabledif) {
4175 			u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
4176 			struct dsd_dma *dsd, *nxt;
4177 			uint i;
4178 			/* Creata a DMA pool of buffers for DIF bundling */
4179 			ha->dif_bundl_pool = dma_pool_create(name,
4180 			    &ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
4181 			if (!ha->dif_bundl_pool) {
4182 				ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4183 				    "%s: failed create dif_bundl_pool\n",
4184 				    __func__);
4185 				goto fail_dif_bundl_dma_pool;
4186 			}
4187 
4188 			INIT_LIST_HEAD(&ha->pool.good.head);
4189 			INIT_LIST_HEAD(&ha->pool.unusable.head);
4190 			ha->pool.good.count = 0;
4191 			ha->pool.unusable.count = 0;
4192 			for (i = 0; i < 128; i++) {
4193 				dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
4194 				if (!dsd) {
4195 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4196 					    0xe0ee, "%s: failed alloc dsd\n",
4197 					    __func__);
4198 					return -ENOMEM;
4199 				}
4200 				ha->dif_bundle_kallocs++;
4201 
4202 				dsd->dsd_addr = dma_pool_alloc(
4203 				    ha->dif_bundl_pool, GFP_ATOMIC,
4204 				    &dsd->dsd_list_dma);
4205 				if (!dsd->dsd_addr) {
4206 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4207 					    0xe0ee,
4208 					    "%s: failed alloc ->dsd_addr\n",
4209 					    __func__);
4210 					kfree(dsd);
4211 					ha->dif_bundle_kallocs--;
4212 					continue;
4213 				}
4214 				ha->dif_bundle_dma_allocs++;
4215 
4216 				/*
4217 				 * if DMA buffer crosses 4G boundary,
4218 				 * put it on bad list
4219 				 */
4220 				if (MSD(dsd->dsd_list_dma) ^
4221 				    MSD(dsd->dsd_list_dma + bufsize)) {
4222 					list_add_tail(&dsd->list,
4223 					    &ha->pool.unusable.head);
4224 					ha->pool.unusable.count++;
4225 				} else {
4226 					list_add_tail(&dsd->list,
4227 					    &ha->pool.good.head);
4228 					ha->pool.good.count++;
4229 				}
4230 			}
4231 
4232 			/* return the good ones back to the pool */
4233 			list_for_each_entry_safe(dsd, nxt,
4234 			    &ha->pool.good.head, list) {
4235 				list_del(&dsd->list);
4236 				dma_pool_free(ha->dif_bundl_pool,
4237 				    dsd->dsd_addr, dsd->dsd_list_dma);
4238 				ha->dif_bundle_dma_allocs--;
4239 				kfree(dsd);
4240 				ha->dif_bundle_kallocs--;
4241 			}
4242 
4243 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4244 			    "%s: dif dma pool (good=%u unusable=%u)\n",
4245 			    __func__, ha->pool.good.count,
4246 			    ha->pool.unusable.count);
4247 		}
4248 
4249 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
4250 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
4251 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
4252 		    ha->dif_bundl_pool);
4253 	}
4254 
4255 	/* Allocate memory for SNS commands */
4256 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4257 	/* Get consistent memory allocated for SNS commands */
4258 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
4259 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
4260 		if (!ha->sns_cmd)
4261 			goto fail_dma_pool;
4262 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
4263 		    "sns_cmd: %p.\n", ha->sns_cmd);
4264 	} else {
4265 	/* Get consistent memory allocated for MS IOCB */
4266 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4267 			&ha->ms_iocb_dma);
4268 		if (!ha->ms_iocb)
4269 			goto fail_dma_pool;
4270 	/* Get consistent memory allocated for CT SNS commands */
4271 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
4272 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
4273 		if (!ha->ct_sns)
4274 			goto fail_free_ms_iocb;
4275 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
4276 		    "ms_iocb=%p ct_sns=%p.\n",
4277 		    ha->ms_iocb, ha->ct_sns);
4278 	}
4279 
4280 	/* Allocate memory for request ring */
4281 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
4282 	if (!*req) {
4283 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
4284 		    "Failed to allocate memory for req.\n");
4285 		goto fail_req;
4286 	}
4287 	(*req)->length = req_len;
4288 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
4289 		((*req)->length + 1) * sizeof(request_t),
4290 		&(*req)->dma, GFP_KERNEL);
4291 	if (!(*req)->ring) {
4292 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
4293 		    "Failed to allocate memory for req_ring.\n");
4294 		goto fail_req_ring;
4295 	}
4296 	/* Allocate memory for response ring */
4297 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
4298 	if (!*rsp) {
4299 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
4300 		    "Failed to allocate memory for rsp.\n");
4301 		goto fail_rsp;
4302 	}
4303 	(*rsp)->hw = ha;
4304 	(*rsp)->length = rsp_len;
4305 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
4306 		((*rsp)->length + 1) * sizeof(response_t),
4307 		&(*rsp)->dma, GFP_KERNEL);
4308 	if (!(*rsp)->ring) {
4309 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
4310 		    "Failed to allocate memory for rsp_ring.\n");
4311 		goto fail_rsp_ring;
4312 	}
4313 	(*req)->rsp = *rsp;
4314 	(*rsp)->req = *req;
4315 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
4316 	    "req=%p req->length=%d req->ring=%p rsp=%p "
4317 	    "rsp->length=%d rsp->ring=%p.\n",
4318 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
4319 	    (*rsp)->ring);
4320 	/* Allocate memory for NVRAM data for vports */
4321 	if (ha->nvram_npiv_size) {
4322 		ha->npiv_info = kcalloc(ha->nvram_npiv_size,
4323 					sizeof(struct qla_npiv_entry),
4324 					GFP_KERNEL);
4325 		if (!ha->npiv_info) {
4326 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
4327 			    "Failed to allocate memory for npiv_info.\n");
4328 			goto fail_npiv_info;
4329 		}
4330 	} else
4331 		ha->npiv_info = NULL;
4332 
4333 	/* Get consistent memory allocated for EX-INIT-CB. */
4334 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
4335 	    IS_QLA28XX(ha)) {
4336 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4337 		    &ha->ex_init_cb_dma);
4338 		if (!ha->ex_init_cb)
4339 			goto fail_ex_init_cb;
4340 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
4341 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
4342 	}
4343 
4344 	/* Get consistent memory allocated for Special Features-CB. */
4345 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4346 		ha->sf_init_cb = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL,
4347 						&ha->sf_init_cb_dma);
4348 		if (!ha->sf_init_cb)
4349 			goto fail_sf_init_cb;
4350 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199,
4351 			   "sf_init_cb=%p.\n", ha->sf_init_cb);
4352 	}
4353 
4354 	INIT_LIST_HEAD(&ha->gbl_dsd_list);
4355 
4356 	/* Get consistent memory allocated for Async Port-Database. */
4357 	if (!IS_FWI2_CAPABLE(ha)) {
4358 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4359 			&ha->async_pd_dma);
4360 		if (!ha->async_pd)
4361 			goto fail_async_pd;
4362 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
4363 		    "async_pd=%p.\n", ha->async_pd);
4364 	}
4365 
4366 	INIT_LIST_HEAD(&ha->vp_list);
4367 
4368 	/* Allocate memory for our loop_id bitmap */
4369 	ha->loop_id_map = kcalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE),
4370 				  sizeof(long),
4371 				  GFP_KERNEL);
4372 	if (!ha->loop_id_map)
4373 		goto fail_loop_id_map;
4374 	else {
4375 		qla2x00_set_reserved_loop_ids(ha);
4376 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
4377 		    "loop_id_map=%p.\n", ha->loop_id_map);
4378 	}
4379 
4380 	ha->sfp_data = dma_alloc_coherent(&ha->pdev->dev,
4381 	    SFP_DEV_SIZE, &ha->sfp_data_dma, GFP_KERNEL);
4382 	if (!ha->sfp_data) {
4383 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4384 		    "Unable to allocate memory for SFP read-data.\n");
4385 		goto fail_sfp_data;
4386 	}
4387 
4388 	ha->flt = dma_alloc_coherent(&ha->pdev->dev,
4389 	    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, &ha->flt_dma,
4390 	    GFP_KERNEL);
4391 	if (!ha->flt) {
4392 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4393 		    "Unable to allocate memory for FLT.\n");
4394 		goto fail_flt_buffer;
4395 	}
4396 
4397 	/* allocate the purex dma pool */
4398 	ha->purex_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4399 	    ELS_MAX_PAYLOAD, 8, 0);
4400 
4401 	if (!ha->purex_dma_pool) {
4402 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4403 		    "Unable to allocate purex_dma_pool.\n");
4404 		goto fail_flt;
4405 	}
4406 
4407 	ha->elsrej.size = sizeof(struct fc_els_ls_rjt) + 16;
4408 	ha->elsrej.c = dma_alloc_coherent(&ha->pdev->dev,
4409 	    ha->elsrej.size, &ha->elsrej.cdma, GFP_KERNEL);
4410 
4411 	if (!ha->elsrej.c) {
4412 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
4413 		    "Alloc failed for els reject cmd.\n");
4414 		goto fail_elsrej;
4415 	}
4416 	ha->elsrej.c->er_cmd = ELS_LS_RJT;
4417 	ha->elsrej.c->er_reason = ELS_RJT_LOGIC;
4418 	ha->elsrej.c->er_explan = ELS_EXPL_UNAB_DATA;
4419 	return 0;
4420 
4421 fail_elsrej:
4422 	dma_pool_destroy(ha->purex_dma_pool);
4423 fail_flt:
4424 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4425 	    ha->flt, ha->flt_dma);
4426 
4427 fail_flt_buffer:
4428 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4429 	    ha->sfp_data, ha->sfp_data_dma);
4430 fail_sfp_data:
4431 	kfree(ha->loop_id_map);
4432 fail_loop_id_map:
4433 	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4434 fail_async_pd:
4435 	dma_pool_free(ha->s_dma_pool, ha->sf_init_cb, ha->sf_init_cb_dma);
4436 fail_sf_init_cb:
4437 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
4438 fail_ex_init_cb:
4439 	kfree(ha->npiv_info);
4440 fail_npiv_info:
4441 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
4442 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
4443 	(*rsp)->ring = NULL;
4444 	(*rsp)->dma = 0;
4445 fail_rsp_ring:
4446 	kfree(*rsp);
4447 	*rsp = NULL;
4448 fail_rsp:
4449 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
4450 		sizeof(request_t), (*req)->ring, (*req)->dma);
4451 	(*req)->ring = NULL;
4452 	(*req)->dma = 0;
4453 fail_req_ring:
4454 	kfree(*req);
4455 	*req = NULL;
4456 fail_req:
4457 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4458 		ha->ct_sns, ha->ct_sns_dma);
4459 	ha->ct_sns = NULL;
4460 	ha->ct_sns_dma = 0;
4461 fail_free_ms_iocb:
4462 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4463 	ha->ms_iocb = NULL;
4464 	ha->ms_iocb_dma = 0;
4465 
4466 	if (ha->sns_cmd)
4467 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4468 		    ha->sns_cmd, ha->sns_cmd_dma);
4469 fail_dma_pool:
4470 	if (ql2xenabledif) {
4471 		struct dsd_dma *dsd, *nxt;
4472 
4473 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4474 		    list) {
4475 			list_del(&dsd->list);
4476 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4477 			    dsd->dsd_list_dma);
4478 			ha->dif_bundle_dma_allocs--;
4479 			kfree(dsd);
4480 			ha->dif_bundle_kallocs--;
4481 			ha->pool.unusable.count--;
4482 		}
4483 		dma_pool_destroy(ha->dif_bundl_pool);
4484 		ha->dif_bundl_pool = NULL;
4485 	}
4486 
4487 fail_dif_bundl_dma_pool:
4488 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4489 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4490 		ha->fcp_cmnd_dma_pool = NULL;
4491 	}
4492 fail_dl_dma_pool:
4493 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4494 		dma_pool_destroy(ha->dl_dma_pool);
4495 		ha->dl_dma_pool = NULL;
4496 	}
4497 fail_s_dma_pool:
4498 	dma_pool_destroy(ha->s_dma_pool);
4499 	ha->s_dma_pool = NULL;
4500 fail_free_nvram:
4501 	kfree(ha->nvram);
4502 	ha->nvram = NULL;
4503 fail_free_ctx_mempool:
4504 	mempool_destroy(ha->ctx_mempool);
4505 	ha->ctx_mempool = NULL;
4506 fail_free_srb_mempool:
4507 	mempool_destroy(ha->srb_mempool);
4508 	ha->srb_mempool = NULL;
4509 fail_free_gid_list:
4510 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4511 	ha->gid_list,
4512 	ha->gid_list_dma);
4513 	ha->gid_list = NULL;
4514 	ha->gid_list_dma = 0;
4515 fail_free_tgt_mem:
4516 	qlt_mem_free(ha);
4517 fail_free_btree:
4518 	btree_destroy32(&ha->host_map);
4519 fail_free_init_cb:
4520 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
4521 	ha->init_cb_dma);
4522 	ha->init_cb = NULL;
4523 	ha->init_cb_dma = 0;
4524 fail:
4525 	ql_log(ql_log_fatal, NULL, 0x0030,
4526 	    "Memory allocation failure.\n");
4527 	return -ENOMEM;
4528 }
4529 
4530 int
4531 qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
4532 {
4533 	int rval;
4534 	uint16_t	size, max_cnt;
4535 	uint32_t temp;
4536 	struct qla_hw_data *ha = vha->hw;
4537 
4538 	/* Return if we don't need to alloacate any extended logins */
4539 	if (ql2xexlogins <= MAX_FIBRE_DEVICES_2400)
4540 		return QLA_SUCCESS;
4541 
4542 	if (!IS_EXLOGIN_OFFLD_CAPABLE(ha))
4543 		return QLA_SUCCESS;
4544 
4545 	ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
4546 	max_cnt = 0;
4547 	rval = qla_get_exlogin_status(vha, &size, &max_cnt);
4548 	if (rval != QLA_SUCCESS) {
4549 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
4550 		    "Failed to get exlogin status.\n");
4551 		return rval;
4552 	}
4553 
4554 	temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
4555 	temp *= size;
4556 
4557 	if (temp != ha->exlogin_size) {
4558 		qla2x00_free_exlogin_buffer(ha);
4559 		ha->exlogin_size = temp;
4560 
4561 		ql_log(ql_log_info, vha, 0xd024,
4562 		    "EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
4563 		    max_cnt, size, temp);
4564 
4565 		ql_log(ql_log_info, vha, 0xd025,
4566 		    "EXLOGIN: requested size=0x%x\n", ha->exlogin_size);
4567 
4568 		/* Get consistent memory for extended logins */
4569 		ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
4570 			ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
4571 		if (!ha->exlogin_buf) {
4572 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
4573 		    "Failed to allocate memory for exlogin_buf_dma.\n");
4574 			return -ENOMEM;
4575 		}
4576 	}
4577 
4578 	/* Now configure the dma buffer */
4579 	rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
4580 	if (rval) {
4581 		ql_log(ql_log_fatal, vha, 0xd033,
4582 		    "Setup extended login buffer  ****FAILED****.\n");
4583 		qla2x00_free_exlogin_buffer(ha);
4584 	}
4585 
4586 	return rval;
4587 }
4588 
4589 /*
4590 * qla2x00_free_exlogin_buffer
4591 *
4592 * Input:
4593 *	ha = adapter block pointer
4594 */
4595 void
4596 qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
4597 {
4598 	if (ha->exlogin_buf) {
4599 		dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
4600 		    ha->exlogin_buf, ha->exlogin_buf_dma);
4601 		ha->exlogin_buf = NULL;
4602 		ha->exlogin_size = 0;
4603 	}
4604 }
4605 
4606 static void
4607 qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
4608 {
4609 	u32 temp;
4610 	struct init_cb_81xx *icb = (struct init_cb_81xx *)&vha->hw->init_cb;
4611 	*ret_cnt = FW_DEF_EXCHANGES_CNT;
4612 
4613 	if (max_cnt > vha->hw->max_exchg)
4614 		max_cnt = vha->hw->max_exchg;
4615 
4616 	if (qla_ini_mode_enabled(vha)) {
4617 		if (vha->ql2xiniexchg > max_cnt)
4618 			vha->ql2xiniexchg = max_cnt;
4619 
4620 		if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
4621 			*ret_cnt = vha->ql2xiniexchg;
4622 
4623 	} else if (qla_tgt_mode_enabled(vha)) {
4624 		if (vha->ql2xexchoffld > max_cnt) {
4625 			vha->ql2xexchoffld = max_cnt;
4626 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4627 		}
4628 
4629 		if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
4630 			*ret_cnt = vha->ql2xexchoffld;
4631 	} else if (qla_dual_mode_enabled(vha)) {
4632 		temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
4633 		if (temp > max_cnt) {
4634 			vha->ql2xiniexchg -= (temp - max_cnt)/2;
4635 			vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
4636 			temp = max_cnt;
4637 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4638 		}
4639 
4640 		if (temp > FW_DEF_EXCHANGES_CNT)
4641 			*ret_cnt = temp;
4642 	}
4643 }
4644 
4645 int
4646 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
4647 {
4648 	int rval;
4649 	u16	size, max_cnt;
4650 	u32 actual_cnt, totsz;
4651 	struct qla_hw_data *ha = vha->hw;
4652 
4653 	if (!ha->flags.exchoffld_enabled)
4654 		return QLA_SUCCESS;
4655 
4656 	if (!IS_EXCHG_OFFLD_CAPABLE(ha))
4657 		return QLA_SUCCESS;
4658 
4659 	max_cnt = 0;
4660 	rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
4661 	if (rval != QLA_SUCCESS) {
4662 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
4663 		    "Failed to get exlogin status.\n");
4664 		return rval;
4665 	}
4666 
4667 	qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
4668 	ql_log(ql_log_info, vha, 0xd014,
4669 	    "Actual exchange offload count: %d.\n", actual_cnt);
4670 
4671 	totsz = actual_cnt * size;
4672 
4673 	if (totsz != ha->exchoffld_size) {
4674 		qla2x00_free_exchoffld_buffer(ha);
4675 		if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
4676 			ha->exchoffld_size = 0;
4677 			ha->flags.exchoffld_enabled = 0;
4678 			return QLA_SUCCESS;
4679 		}
4680 
4681 		ha->exchoffld_size = totsz;
4682 
4683 		ql_log(ql_log_info, vha, 0xd016,
4684 		    "Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
4685 		    max_cnt, actual_cnt, size, totsz);
4686 
4687 		ql_log(ql_log_info, vha, 0xd017,
4688 		    "Exchange Buffers requested size = 0x%x\n",
4689 		    ha->exchoffld_size);
4690 
4691 		/* Get consistent memory for extended logins */
4692 		ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
4693 			ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
4694 		if (!ha->exchoffld_buf) {
4695 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4696 			"Failed to allocate memory for Exchange Offload.\n");
4697 
4698 			if (ha->max_exchg >
4699 			    (FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
4700 				ha->max_exchg -= REDUCE_EXCHANGES_CNT;
4701 			} else if (ha->max_exchg >
4702 			    (FW_DEF_EXCHANGES_CNT + 512)) {
4703 				ha->max_exchg -= 512;
4704 			} else {
4705 				ha->flags.exchoffld_enabled = 0;
4706 				ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4707 				    "Disabling Exchange offload due to lack of memory\n");
4708 			}
4709 			ha->exchoffld_size = 0;
4710 
4711 			return -ENOMEM;
4712 		}
4713 	} else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
4714 		/* pathological case */
4715 		qla2x00_free_exchoffld_buffer(ha);
4716 		ha->exchoffld_size = 0;
4717 		ha->flags.exchoffld_enabled = 0;
4718 		ql_log(ql_log_info, vha, 0xd016,
4719 		    "Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
4720 		    ha->exchoffld_size, actual_cnt, size, totsz);
4721 		return 0;
4722 	}
4723 
4724 	/* Now configure the dma buffer */
4725 	rval = qla_set_exchoffld_mem_cfg(vha);
4726 	if (rval) {
4727 		ql_log(ql_log_fatal, vha, 0xd02e,
4728 		    "Setup exchange offload buffer ****FAILED****.\n");
4729 		qla2x00_free_exchoffld_buffer(ha);
4730 	} else {
4731 		/* re-adjust number of target exchange */
4732 		struct init_cb_81xx *icb = (struct init_cb_81xx *)ha->init_cb;
4733 
4734 		if (qla_ini_mode_enabled(vha))
4735 			icb->exchange_count = 0;
4736 		else
4737 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4738 	}
4739 
4740 	return rval;
4741 }
4742 
4743 /*
4744 * qla2x00_free_exchoffld_buffer
4745 *
4746 * Input:
4747 *	ha = adapter block pointer
4748 */
4749 void
4750 qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
4751 {
4752 	if (ha->exchoffld_buf) {
4753 		dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
4754 		    ha->exchoffld_buf, ha->exchoffld_buf_dma);
4755 		ha->exchoffld_buf = NULL;
4756 		ha->exchoffld_size = 0;
4757 	}
4758 }
4759 
4760 /*
4761 * qla2x00_free_fw_dump
4762 *	Frees fw dump stuff.
4763 *
4764 * Input:
4765 *	ha = adapter block pointer
4766 */
4767 static void
4768 qla2x00_free_fw_dump(struct qla_hw_data *ha)
4769 {
4770 	struct fwdt *fwdt = ha->fwdt;
4771 	uint j;
4772 
4773 	if (ha->fce)
4774 		dma_free_coherent(&ha->pdev->dev,
4775 		    FCE_SIZE, ha->fce, ha->fce_dma);
4776 
4777 	if (ha->eft)
4778 		dma_free_coherent(&ha->pdev->dev,
4779 		    EFT_SIZE, ha->eft, ha->eft_dma);
4780 
4781 	vfree(ha->fw_dump);
4782 
4783 	ha->fce = NULL;
4784 	ha->fce_dma = 0;
4785 	ha->flags.fce_enabled = 0;
4786 	ha->eft = NULL;
4787 	ha->eft_dma = 0;
4788 	ha->fw_dumped = false;
4789 	ha->fw_dump_cap_flags = 0;
4790 	ha->fw_dump_reading = 0;
4791 	ha->fw_dump = NULL;
4792 	ha->fw_dump_len = 0;
4793 
4794 	for (j = 0; j < 2; j++, fwdt++) {
4795 		vfree(fwdt->template);
4796 		fwdt->template = NULL;
4797 		fwdt->length = 0;
4798 	}
4799 }
4800 
4801 /*
4802 * qla2x00_mem_free
4803 *      Frees all adapter allocated memory.
4804 *
4805 * Input:
4806 *      ha = adapter block pointer.
4807 */
4808 static void
4809 qla2x00_mem_free(struct qla_hw_data *ha)
4810 {
4811 	qla2x00_free_fw_dump(ha);
4812 
4813 	if (ha->mctp_dump)
4814 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
4815 		    ha->mctp_dump_dma);
4816 	ha->mctp_dump = NULL;
4817 
4818 	mempool_destroy(ha->srb_mempool);
4819 	ha->srb_mempool = NULL;
4820 
4821 	if (ha->dcbx_tlv)
4822 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
4823 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
4824 	ha->dcbx_tlv = NULL;
4825 
4826 	if (ha->xgmac_data)
4827 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
4828 		    ha->xgmac_data, ha->xgmac_data_dma);
4829 	ha->xgmac_data = NULL;
4830 
4831 	if (ha->sns_cmd)
4832 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4833 		ha->sns_cmd, ha->sns_cmd_dma);
4834 	ha->sns_cmd = NULL;
4835 	ha->sns_cmd_dma = 0;
4836 
4837 	if (ha->ct_sns)
4838 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4839 		ha->ct_sns, ha->ct_sns_dma);
4840 	ha->ct_sns = NULL;
4841 	ha->ct_sns_dma = 0;
4842 
4843 	if (ha->sfp_data)
4844 		dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, ha->sfp_data,
4845 		    ha->sfp_data_dma);
4846 	ha->sfp_data = NULL;
4847 
4848 	if (ha->flt)
4849 		dma_free_coherent(&ha->pdev->dev,
4850 		    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE,
4851 		    ha->flt, ha->flt_dma);
4852 	ha->flt = NULL;
4853 	ha->flt_dma = 0;
4854 
4855 	if (ha->ms_iocb)
4856 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4857 	ha->ms_iocb = NULL;
4858 	ha->ms_iocb_dma = 0;
4859 
4860 	if (ha->sf_init_cb)
4861 		dma_pool_free(ha->s_dma_pool,
4862 			      ha->sf_init_cb, ha->sf_init_cb_dma);
4863 
4864 	if (ha->ex_init_cb)
4865 		dma_pool_free(ha->s_dma_pool,
4866 			ha->ex_init_cb, ha->ex_init_cb_dma);
4867 	ha->ex_init_cb = NULL;
4868 	ha->ex_init_cb_dma = 0;
4869 
4870 	if (ha->async_pd)
4871 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4872 	ha->async_pd = NULL;
4873 	ha->async_pd_dma = 0;
4874 
4875 	dma_pool_destroy(ha->s_dma_pool);
4876 	ha->s_dma_pool = NULL;
4877 
4878 	if (ha->gid_list)
4879 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4880 		ha->gid_list, ha->gid_list_dma);
4881 	ha->gid_list = NULL;
4882 	ha->gid_list_dma = 0;
4883 
4884 	if (IS_QLA82XX(ha)) {
4885 		if (!list_empty(&ha->gbl_dsd_list)) {
4886 			struct dsd_dma *dsd_ptr, *tdsd_ptr;
4887 
4888 			/* clean up allocated prev pool */
4889 			list_for_each_entry_safe(dsd_ptr,
4890 				tdsd_ptr, &ha->gbl_dsd_list, list) {
4891 				dma_pool_free(ha->dl_dma_pool,
4892 				dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
4893 				list_del(&dsd_ptr->list);
4894 				kfree(dsd_ptr);
4895 			}
4896 		}
4897 	}
4898 
4899 	dma_pool_destroy(ha->dl_dma_pool);
4900 	ha->dl_dma_pool = NULL;
4901 
4902 	dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4903 	ha->fcp_cmnd_dma_pool = NULL;
4904 
4905 	mempool_destroy(ha->ctx_mempool);
4906 	ha->ctx_mempool = NULL;
4907 
4908 	if (ql2xenabledif && ha->dif_bundl_pool) {
4909 		struct dsd_dma *dsd, *nxt;
4910 
4911 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4912 					 list) {
4913 			list_del(&dsd->list);
4914 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4915 				      dsd->dsd_list_dma);
4916 			ha->dif_bundle_dma_allocs--;
4917 			kfree(dsd);
4918 			ha->dif_bundle_kallocs--;
4919 			ha->pool.unusable.count--;
4920 		}
4921 		list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
4922 			list_del(&dsd->list);
4923 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4924 				      dsd->dsd_list_dma);
4925 			ha->dif_bundle_dma_allocs--;
4926 			kfree(dsd);
4927 			ha->dif_bundle_kallocs--;
4928 		}
4929 	}
4930 
4931 	dma_pool_destroy(ha->dif_bundl_pool);
4932 	ha->dif_bundl_pool = NULL;
4933 
4934 	qlt_mem_free(ha);
4935 	qla_remove_hostmap(ha);
4936 
4937 	if (ha->init_cb)
4938 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
4939 			ha->init_cb, ha->init_cb_dma);
4940 
4941 	dma_pool_destroy(ha->purex_dma_pool);
4942 	ha->purex_dma_pool = NULL;
4943 
4944 	if (ha->elsrej.c) {
4945 		dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
4946 		    ha->elsrej.c, ha->elsrej.cdma);
4947 		ha->elsrej.c = NULL;
4948 	}
4949 
4950 	ha->init_cb = NULL;
4951 	ha->init_cb_dma = 0;
4952 
4953 	vfree(ha->optrom_buffer);
4954 	ha->optrom_buffer = NULL;
4955 	kfree(ha->nvram);
4956 	ha->nvram = NULL;
4957 	kfree(ha->npiv_info);
4958 	ha->npiv_info = NULL;
4959 	kfree(ha->swl);
4960 	ha->swl = NULL;
4961 	kfree(ha->loop_id_map);
4962 	ha->sf_init_cb = NULL;
4963 	ha->sf_init_cb_dma = 0;
4964 	ha->loop_id_map = NULL;
4965 }
4966 
4967 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
4968 						struct qla_hw_data *ha)
4969 {
4970 	struct Scsi_Host *host;
4971 	struct scsi_qla_host *vha = NULL;
4972 
4973 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
4974 	if (!host) {
4975 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
4976 		    "Failed to allocate host from the scsi layer, aborting.\n");
4977 		return NULL;
4978 	}
4979 
4980 	/* Clear our data area */
4981 	vha = shost_priv(host);
4982 	memset(vha, 0, sizeof(scsi_qla_host_t));
4983 
4984 	vha->host = host;
4985 	vha->host_no = host->host_no;
4986 	vha->hw = ha;
4987 
4988 	vha->qlini_mode = ql2x_ini_mode;
4989 	vha->ql2xexchoffld = ql2xexchoffld;
4990 	vha->ql2xiniexchg = ql2xiniexchg;
4991 
4992 	INIT_LIST_HEAD(&vha->vp_fcports);
4993 	INIT_LIST_HEAD(&vha->work_list);
4994 	INIT_LIST_HEAD(&vha->list);
4995 	INIT_LIST_HEAD(&vha->qla_cmd_list);
4996 	INIT_LIST_HEAD(&vha->logo_list);
4997 	INIT_LIST_HEAD(&vha->plogi_ack_list);
4998 	INIT_LIST_HEAD(&vha->qp_list);
4999 	INIT_LIST_HEAD(&vha->gnl.fcports);
5000 	INIT_LIST_HEAD(&vha->gpnid_list);
5001 	INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
5002 
5003 	INIT_LIST_HEAD(&vha->purex_list.head);
5004 	spin_lock_init(&vha->purex_list.lock);
5005 
5006 	spin_lock_init(&vha->work_lock);
5007 	spin_lock_init(&vha->cmd_list_lock);
5008 	init_waitqueue_head(&vha->fcport_waitQ);
5009 	init_waitqueue_head(&vha->vref_waitq);
5010 	qla_enode_init(vha);
5011 	qla_edb_init(vha);
5012 
5013 
5014 	vha->gnl.size = sizeof(struct get_name_list_extended) *
5015 			(ha->max_loop_id + 1);
5016 	vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
5017 	    vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
5018 	if (!vha->gnl.l) {
5019 		ql_log(ql_log_fatal, vha, 0xd04a,
5020 		    "Alloc failed for name list.\n");
5021 		scsi_host_put(vha->host);
5022 		return NULL;
5023 	}
5024 
5025 	/* todo: what about ext login? */
5026 	vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
5027 	vha->scan.l = vmalloc(vha->scan.size);
5028 	if (!vha->scan.l) {
5029 		ql_log(ql_log_fatal, vha, 0xd04a,
5030 		    "Alloc failed for scan database.\n");
5031 		dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
5032 		    vha->gnl.l, vha->gnl.ldma);
5033 		vha->gnl.l = NULL;
5034 		scsi_host_put(vha->host);
5035 		return NULL;
5036 	}
5037 	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
5038 
5039 	sprintf(vha->host_str, "%s_%lu", QLA2XXX_DRIVER_NAME, vha->host_no);
5040 	ql_dbg(ql_dbg_init, vha, 0x0041,
5041 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
5042 	    vha->host, vha->hw, vha,
5043 	    dev_name(&(ha->pdev->dev)));
5044 
5045 	return vha;
5046 }
5047 
5048 struct qla_work_evt *
5049 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
5050 {
5051 	struct qla_work_evt *e;
5052 	uint8_t bail;
5053 
5054 	if (test_bit(UNLOADING, &vha->dpc_flags))
5055 		return NULL;
5056 
5057 	QLA_VHA_MARK_BUSY(vha, bail);
5058 	if (bail)
5059 		return NULL;
5060 
5061 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
5062 	if (!e) {
5063 		QLA_VHA_MARK_NOT_BUSY(vha);
5064 		return NULL;
5065 	}
5066 
5067 	INIT_LIST_HEAD(&e->list);
5068 	e->type = type;
5069 	e->flags = QLA_EVT_FLAG_FREE;
5070 	return e;
5071 }
5072 
5073 int
5074 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
5075 {
5076 	unsigned long flags;
5077 	bool q = false;
5078 
5079 	spin_lock_irqsave(&vha->work_lock, flags);
5080 	list_add_tail(&e->list, &vha->work_list);
5081 
5082 	if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
5083 		q = true;
5084 
5085 	spin_unlock_irqrestore(&vha->work_lock, flags);
5086 
5087 	if (q)
5088 		queue_work(vha->hw->wq, &vha->iocb_work);
5089 
5090 	return QLA_SUCCESS;
5091 }
5092 
5093 int
5094 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
5095     u32 data)
5096 {
5097 	struct qla_work_evt *e;
5098 
5099 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
5100 	if (!e)
5101 		return QLA_FUNCTION_FAILED;
5102 
5103 	e->u.aen.code = code;
5104 	e->u.aen.data = data;
5105 	return qla2x00_post_work(vha, e);
5106 }
5107 
5108 int
5109 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
5110 {
5111 	struct qla_work_evt *e;
5112 
5113 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
5114 	if (!e)
5115 		return QLA_FUNCTION_FAILED;
5116 
5117 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
5118 	return qla2x00_post_work(vha, e);
5119 }
5120 
5121 #define qla2x00_post_async_work(name, type)	\
5122 int qla2x00_post_async_##name##_work(		\
5123     struct scsi_qla_host *vha,			\
5124     fc_port_t *fcport, uint16_t *data)		\
5125 {						\
5126 	struct qla_work_evt *e;			\
5127 						\
5128 	e = qla2x00_alloc_work(vha, type);	\
5129 	if (!e)					\
5130 		return QLA_FUNCTION_FAILED;	\
5131 						\
5132 	e->u.logio.fcport = fcport;		\
5133 	if (data) {				\
5134 		e->u.logio.data[0] = data[0];	\
5135 		e->u.logio.data[1] = data[1];	\
5136 	}					\
5137 	fcport->flags |= FCF_ASYNC_ACTIVE;	\
5138 	return qla2x00_post_work(vha, e);	\
5139 }
5140 
5141 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
5142 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
5143 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
5144 qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
5145 qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
5146 
5147 int
5148 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
5149 {
5150 	struct qla_work_evt *e;
5151 
5152 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
5153 	if (!e)
5154 		return QLA_FUNCTION_FAILED;
5155 
5156 	e->u.uevent.code = code;
5157 	return qla2x00_post_work(vha, e);
5158 }
5159 
5160 static void
5161 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
5162 {
5163 	char event_string[40];
5164 	char *envp[] = { event_string, NULL };
5165 
5166 	switch (code) {
5167 	case QLA_UEVENT_CODE_FW_DUMP:
5168 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
5169 		    vha->host_no);
5170 		break;
5171 	default:
5172 		/* do nothing */
5173 		break;
5174 	}
5175 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
5176 }
5177 
5178 int
5179 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
5180 			uint32_t *data, int cnt)
5181 {
5182 	struct qla_work_evt *e;
5183 
5184 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
5185 	if (!e)
5186 		return QLA_FUNCTION_FAILED;
5187 
5188 	e->u.aenfx.evtcode = evtcode;
5189 	e->u.aenfx.count = cnt;
5190 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
5191 	return qla2x00_post_work(vha, e);
5192 }
5193 
5194 void qla24xx_sched_upd_fcport(fc_port_t *fcport)
5195 {
5196 	unsigned long flags;
5197 
5198 	if (IS_SW_RESV_ADDR(fcport->d_id))
5199 		return;
5200 
5201 	spin_lock_irqsave(&fcport->vha->work_lock, flags);
5202 	if (fcport->disc_state == DSC_UPD_FCPORT) {
5203 		spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5204 		return;
5205 	}
5206 	fcport->jiffies_at_registration = jiffies;
5207 	fcport->sec_since_registration = 0;
5208 	fcport->next_disc_state = DSC_DELETED;
5209 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5210 	spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5211 
5212 	queue_work(system_unbound_wq, &fcport->reg_work);
5213 }
5214 
5215 static
5216 void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
5217 {
5218 	unsigned long flags;
5219 	fc_port_t *fcport =  NULL, *tfcp;
5220 	struct qlt_plogi_ack_t *pla =
5221 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
5222 	uint8_t free_fcport = 0;
5223 
5224 	ql_dbg(ql_dbg_disc, vha, 0xffff,
5225 	    "%s %d %8phC enter\n",
5226 	    __func__, __LINE__, e->u.new_sess.port_name);
5227 
5228 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5229 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
5230 	if (fcport) {
5231 		fcport->d_id = e->u.new_sess.id;
5232 		if (pla) {
5233 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5234 			memcpy(fcport->node_name,
5235 			    pla->iocb.u.isp24.u.plogi.node_name,
5236 			    WWN_SIZE);
5237 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
5238 			/* we took an extra ref_count to prevent PLOGI ACK when
5239 			 * fcport/sess has not been created.
5240 			 */
5241 			pla->ref_count--;
5242 		}
5243 	} else {
5244 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5245 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5246 		if (fcport) {
5247 			fcport->d_id = e->u.new_sess.id;
5248 			fcport->flags |= FCF_FABRIC_DEVICE;
5249 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5250 			fcport->tgt_short_link_down_cnt = 0;
5251 
5252 			memcpy(fcport->port_name, e->u.new_sess.port_name,
5253 			    WWN_SIZE);
5254 
5255 			fcport->fc4_type = e->u.new_sess.fc4_type;
5256 			if (NVME_PRIORITY(vha->hw, fcport))
5257 				fcport->do_prli_nvme = 1;
5258 			else
5259 				fcport->do_prli_nvme = 0;
5260 
5261 			if (e->u.new_sess.fc4_type & FS_FCP_IS_N2N) {
5262 				fcport->dm_login_expire = jiffies +
5263 					QLA_N2N_WAIT_TIME * HZ;
5264 				fcport->fc4_type = FS_FC4TYPE_FCP;
5265 				fcport->n2n_flag = 1;
5266 				if (vha->flags.nvme_enabled)
5267 					fcport->fc4_type |= FS_FC4TYPE_NVME;
5268 			}
5269 
5270 		} else {
5271 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5272 				   "%s %8phC mem alloc fail.\n",
5273 				   __func__, e->u.new_sess.port_name);
5274 
5275 			if (pla) {
5276 				list_del(&pla->list);
5277 				kmem_cache_free(qla_tgt_plogi_cachep, pla);
5278 			}
5279 			return;
5280 		}
5281 
5282 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5283 		/* search again to make sure no one else got ahead */
5284 		tfcp = qla2x00_find_fcport_by_wwpn(vha,
5285 		    e->u.new_sess.port_name, 1);
5286 		if (tfcp) {
5287 			/* should rarily happen */
5288 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5289 			    "%s %8phC found existing fcport b4 add. DS %d LS %d\n",
5290 			    __func__, tfcp->port_name, tfcp->disc_state,
5291 			    tfcp->fw_login_state);
5292 
5293 			free_fcport = 1;
5294 		} else {
5295 			list_add_tail(&fcport->list, &vha->vp_fcports);
5296 
5297 		}
5298 		if (pla) {
5299 			qlt_plogi_ack_link(vha, pla, fcport,
5300 			    QLT_PLOGI_LINK_SAME_WWN);
5301 			pla->ref_count--;
5302 		}
5303 	}
5304 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5305 
5306 	if (fcport) {
5307 		fcport->id_changed = 1;
5308 		fcport->scan_state = QLA_FCPORT_FOUND;
5309 		fcport->chip_reset = vha->hw->base_qpair->chip_reset;
5310 		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
5311 
5312 		if (pla) {
5313 			if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
5314 				u16 wd3_lo;
5315 
5316 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5317 				fcport->local = 0;
5318 				fcport->loop_id =
5319 					le16_to_cpu(
5320 					    pla->iocb.u.isp24.nport_handle);
5321 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5322 				wd3_lo =
5323 				    le16_to_cpu(
5324 					pla->iocb.u.isp24.u.prli.wd3_lo);
5325 
5326 				if (wd3_lo & BIT_7)
5327 					fcport->conf_compl_supported = 1;
5328 
5329 				if ((wd3_lo & BIT_4) == 0)
5330 					fcport->port_type = FCT_INITIATOR;
5331 				else
5332 					fcport->port_type = FCT_TARGET;
5333 			}
5334 			qlt_plogi_ack_unref(vha, pla);
5335 		} else {
5336 			fc_port_t *dfcp = NULL;
5337 
5338 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5339 			tfcp = qla2x00_find_fcport_by_nportid(vha,
5340 			    &e->u.new_sess.id, 1);
5341 			if (tfcp && (tfcp != fcport)) {
5342 				/*
5343 				 * We have a conflict fcport with same NportID.
5344 				 */
5345 				ql_dbg(ql_dbg_disc, vha, 0xffff,
5346 				    "%s %8phC found conflict b4 add. DS %d LS %d\n",
5347 				    __func__, tfcp->port_name, tfcp->disc_state,
5348 				    tfcp->fw_login_state);
5349 
5350 				switch (tfcp->disc_state) {
5351 				case DSC_DELETED:
5352 					break;
5353 				case DSC_DELETE_PEND:
5354 					fcport->login_pause = 1;
5355 					tfcp->conflict = fcport;
5356 					break;
5357 				default:
5358 					fcport->login_pause = 1;
5359 					tfcp->conflict = fcport;
5360 					dfcp = tfcp;
5361 					break;
5362 				}
5363 			}
5364 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5365 			if (dfcp)
5366 				qlt_schedule_sess_for_deletion(tfcp);
5367 
5368 			if (N2N_TOPO(vha->hw)) {
5369 				fcport->flags &= ~FCF_FABRIC_DEVICE;
5370 				fcport->keep_nport_handle = 1;
5371 				if (vha->flags.nvme_enabled) {
5372 					fcport->fc4_type =
5373 					    (FS_FC4TYPE_NVME | FS_FC4TYPE_FCP);
5374 					fcport->n2n_flag = 1;
5375 				}
5376 				fcport->fw_login_state = 0;
5377 
5378 				schedule_delayed_work(&vha->scan.scan_work, 5);
5379 			} else {
5380 				qla24xx_fcport_handle_login(vha, fcport);
5381 			}
5382 		}
5383 	}
5384 
5385 	if (free_fcport) {
5386 		qla2x00_free_fcport(fcport);
5387 		if (pla) {
5388 			list_del(&pla->list);
5389 			kmem_cache_free(qla_tgt_plogi_cachep, pla);
5390 		}
5391 	}
5392 }
5393 
5394 static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
5395 {
5396 	struct srb *sp = e->u.iosb.sp;
5397 	int rval;
5398 
5399 	rval = qla2x00_start_sp(sp);
5400 	if (rval != QLA_SUCCESS) {
5401 		ql_dbg(ql_dbg_disc, vha, 0x2043,
5402 		    "%s: %s: Re-issue IOCB failed (%d).\n",
5403 		    __func__, sp->name, rval);
5404 		qla24xx_sp_unmap(vha, sp);
5405 	}
5406 }
5407 
5408 void
5409 qla2x00_do_work(struct scsi_qla_host *vha)
5410 {
5411 	struct qla_work_evt *e, *tmp;
5412 	unsigned long flags;
5413 	LIST_HEAD(work);
5414 	int rc;
5415 
5416 	spin_lock_irqsave(&vha->work_lock, flags);
5417 	list_splice_init(&vha->work_list, &work);
5418 	spin_unlock_irqrestore(&vha->work_lock, flags);
5419 
5420 	list_for_each_entry_safe(e, tmp, &work, list) {
5421 		rc = QLA_SUCCESS;
5422 		switch (e->type) {
5423 		case QLA_EVT_AEN:
5424 			fc_host_post_event(vha->host, fc_get_event_number(),
5425 			    e->u.aen.code, e->u.aen.data);
5426 			break;
5427 		case QLA_EVT_IDC_ACK:
5428 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
5429 			break;
5430 		case QLA_EVT_ASYNC_LOGIN:
5431 			qla2x00_async_login(vha, e->u.logio.fcport,
5432 			    e->u.logio.data);
5433 			break;
5434 		case QLA_EVT_ASYNC_LOGOUT:
5435 			rc = qla2x00_async_logout(vha, e->u.logio.fcport);
5436 			break;
5437 		case QLA_EVT_ASYNC_ADISC:
5438 			qla2x00_async_adisc(vha, e->u.logio.fcport,
5439 			    e->u.logio.data);
5440 			break;
5441 		case QLA_EVT_UEVENT:
5442 			qla2x00_uevent_emit(vha, e->u.uevent.code);
5443 			break;
5444 		case QLA_EVT_AENFX:
5445 			qlafx00_process_aen(vha, e);
5446 			break;
5447 		case QLA_EVT_GPNID:
5448 			qla24xx_async_gpnid(vha, &e->u.gpnid.id);
5449 			break;
5450 		case QLA_EVT_UNMAP:
5451 			qla24xx_sp_unmap(vha, e->u.iosb.sp);
5452 			break;
5453 		case QLA_EVT_RELOGIN:
5454 			qla2x00_relogin(vha);
5455 			break;
5456 		case QLA_EVT_NEW_SESS:
5457 			qla24xx_create_new_sess(vha, e);
5458 			break;
5459 		case QLA_EVT_GPDB:
5460 			qla24xx_async_gpdb(vha, e->u.fcport.fcport,
5461 			    e->u.fcport.opt);
5462 			break;
5463 		case QLA_EVT_PRLI:
5464 			qla24xx_async_prli(vha, e->u.fcport.fcport);
5465 			break;
5466 		case QLA_EVT_GPSC:
5467 			qla24xx_async_gpsc(vha, e->u.fcport.fcport);
5468 			break;
5469 		case QLA_EVT_GNL:
5470 			qla24xx_async_gnl(vha, e->u.fcport.fcport);
5471 			break;
5472 		case QLA_EVT_NACK:
5473 			qla24xx_do_nack_work(vha, e);
5474 			break;
5475 		case QLA_EVT_ASYNC_PRLO:
5476 			rc = qla2x00_async_prlo(vha, e->u.logio.fcport);
5477 			break;
5478 		case QLA_EVT_ASYNC_PRLO_DONE:
5479 			qla2x00_async_prlo_done(vha, e->u.logio.fcport,
5480 			    e->u.logio.data);
5481 			break;
5482 		case QLA_EVT_GPNFT:
5483 			qla24xx_async_gpnft(vha, e->u.gpnft.fc4_type,
5484 			    e->u.gpnft.sp);
5485 			break;
5486 		case QLA_EVT_GPNFT_DONE:
5487 			qla24xx_async_gpnft_done(vha, e->u.iosb.sp);
5488 			break;
5489 		case QLA_EVT_GNNFT_DONE:
5490 			qla24xx_async_gnnft_done(vha, e->u.iosb.sp);
5491 			break;
5492 		case QLA_EVT_GNNID:
5493 			qla24xx_async_gnnid(vha, e->u.fcport.fcport);
5494 			break;
5495 		case QLA_EVT_GFPNID:
5496 			qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
5497 			break;
5498 		case QLA_EVT_SP_RETRY:
5499 			qla_sp_retry(vha, e);
5500 			break;
5501 		case QLA_EVT_IIDMA:
5502 			qla_do_iidma_work(vha, e->u.fcport.fcport);
5503 			break;
5504 		case QLA_EVT_ELS_PLOGI:
5505 			qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
5506 			    e->u.fcport.fcport, false);
5507 			break;
5508 		case QLA_EVT_SA_REPLACE:
5509 			rc = qla24xx_issue_sa_replace_iocb(vha, e);
5510 			break;
5511 		}
5512 
5513 		if (rc == EAGAIN) {
5514 			/* put 'work' at head of 'vha->work_list' */
5515 			spin_lock_irqsave(&vha->work_lock, flags);
5516 			list_splice(&work, &vha->work_list);
5517 			spin_unlock_irqrestore(&vha->work_lock, flags);
5518 			break;
5519 		}
5520 		list_del_init(&e->list);
5521 		if (e->flags & QLA_EVT_FLAG_FREE)
5522 			kfree(e);
5523 
5524 		/* For each work completed decrement vha ref count */
5525 		QLA_VHA_MARK_NOT_BUSY(vha);
5526 	}
5527 }
5528 
5529 int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
5530 {
5531 	struct qla_work_evt *e;
5532 
5533 	e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
5534 
5535 	if (!e) {
5536 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5537 		return QLA_FUNCTION_FAILED;
5538 	}
5539 
5540 	return qla2x00_post_work(vha, e);
5541 }
5542 
5543 /* Relogins all the fcports of a vport
5544  * Context: dpc thread
5545  */
5546 void qla2x00_relogin(struct scsi_qla_host *vha)
5547 {
5548 	fc_port_t       *fcport;
5549 	int status, relogin_needed = 0;
5550 	struct event_arg ea;
5551 
5552 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5553 		/*
5554 		 * If the port is not ONLINE then try to login
5555 		 * to it if we haven't run out of retries.
5556 		 */
5557 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
5558 		    fcport->login_retry) {
5559 			if (fcport->scan_state != QLA_FCPORT_FOUND ||
5560 			    fcport->disc_state == DSC_LOGIN_AUTH_PEND ||
5561 			    fcport->disc_state == DSC_LOGIN_COMPLETE)
5562 				continue;
5563 
5564 			if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
5565 				fcport->disc_state == DSC_DELETE_PEND) {
5566 				relogin_needed = 1;
5567 			} else {
5568 				if (vha->hw->current_topology != ISP_CFG_NL) {
5569 					memset(&ea, 0, sizeof(ea));
5570 					ea.fcport = fcport;
5571 					qla24xx_handle_relogin_event(vha, &ea);
5572 				} else if (vha->hw->current_topology ==
5573 					 ISP_CFG_NL &&
5574 					IS_QLA2XXX_MIDTYPE(vha->hw)) {
5575 					(void)qla24xx_fcport_handle_login(vha,
5576 									fcport);
5577 				} else if (vha->hw->current_topology ==
5578 				    ISP_CFG_NL) {
5579 					fcport->login_retry--;
5580 					status =
5581 					    qla2x00_local_device_login(vha,
5582 						fcport);
5583 					if (status == QLA_SUCCESS) {
5584 						fcport->old_loop_id =
5585 						    fcport->loop_id;
5586 						ql_dbg(ql_dbg_disc, vha, 0x2003,
5587 						    "Port login OK: logged in ID 0x%x.\n",
5588 						    fcport->loop_id);
5589 						qla2x00_update_fcport
5590 							(vha, fcport);
5591 					} else if (status == 1) {
5592 						set_bit(RELOGIN_NEEDED,
5593 						    &vha->dpc_flags);
5594 						/* retry the login again */
5595 						ql_dbg(ql_dbg_disc, vha, 0x2007,
5596 						    "Retrying %d login again loop_id 0x%x.\n",
5597 						    fcport->login_retry,
5598 						    fcport->loop_id);
5599 					} else {
5600 						fcport->login_retry = 0;
5601 					}
5602 
5603 					if (fcport->login_retry == 0 &&
5604 					    status != QLA_SUCCESS)
5605 						qla2x00_clear_loop_id(fcport);
5606 				}
5607 			}
5608 		}
5609 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5610 			break;
5611 	}
5612 
5613 	if (relogin_needed)
5614 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5615 
5616 	ql_dbg(ql_dbg_disc, vha, 0x400e,
5617 	    "Relogin end.\n");
5618 }
5619 
5620 /* Schedule work on any of the dpc-workqueues */
5621 void
5622 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
5623 {
5624 	struct qla_hw_data *ha = base_vha->hw;
5625 
5626 	switch (work_code) {
5627 	case MBA_IDC_AEN: /* 0x8200 */
5628 		if (ha->dpc_lp_wq)
5629 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
5630 		break;
5631 
5632 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
5633 		if (!ha->flags.nic_core_reset_hdlr_active) {
5634 			if (ha->dpc_hp_wq)
5635 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
5636 		} else
5637 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
5638 			    "NIC Core reset is already active. Skip "
5639 			    "scheduling it again.\n");
5640 		break;
5641 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
5642 		if (ha->dpc_hp_wq)
5643 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
5644 		break;
5645 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
5646 		if (ha->dpc_hp_wq)
5647 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
5648 		break;
5649 	default:
5650 		ql_log(ql_log_warn, base_vha, 0xb05f,
5651 		    "Unknown work-code=0x%x.\n", work_code);
5652 	}
5653 
5654 	return;
5655 }
5656 
5657 /* Work: Perform NIC Core Unrecoverable state handling */
5658 void
5659 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
5660 {
5661 	struct qla_hw_data *ha =
5662 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
5663 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5664 	uint32_t dev_state = 0;
5665 
5666 	qla83xx_idc_lock(base_vha, 0);
5667 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5668 	qla83xx_reset_ownership(base_vha);
5669 	if (ha->flags.nic_core_reset_owner) {
5670 		ha->flags.nic_core_reset_owner = 0;
5671 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5672 		    QLA8XXX_DEV_FAILED);
5673 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
5674 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5675 	}
5676 	qla83xx_idc_unlock(base_vha, 0);
5677 }
5678 
5679 /* Work: Execute IDC state handler */
5680 void
5681 qla83xx_idc_state_handler_work(struct work_struct *work)
5682 {
5683 	struct qla_hw_data *ha =
5684 		container_of(work, struct qla_hw_data, idc_state_handler);
5685 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5686 	uint32_t dev_state = 0;
5687 
5688 	qla83xx_idc_lock(base_vha, 0);
5689 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5690 	if (dev_state == QLA8XXX_DEV_FAILED ||
5691 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
5692 		qla83xx_idc_state_handler(base_vha);
5693 	qla83xx_idc_unlock(base_vha, 0);
5694 }
5695 
5696 static int
5697 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
5698 {
5699 	int rval = QLA_SUCCESS;
5700 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
5701 	uint32_t heart_beat_counter1, heart_beat_counter2;
5702 
5703 	do {
5704 		if (time_after(jiffies, heart_beat_wait)) {
5705 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
5706 			    "Nic Core f/w is not alive.\n");
5707 			rval = QLA_FUNCTION_FAILED;
5708 			break;
5709 		}
5710 
5711 		qla83xx_idc_lock(base_vha, 0);
5712 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5713 		    &heart_beat_counter1);
5714 		qla83xx_idc_unlock(base_vha, 0);
5715 		msleep(100);
5716 		qla83xx_idc_lock(base_vha, 0);
5717 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5718 		    &heart_beat_counter2);
5719 		qla83xx_idc_unlock(base_vha, 0);
5720 	} while (heart_beat_counter1 == heart_beat_counter2);
5721 
5722 	return rval;
5723 }
5724 
5725 /* Work: Perform NIC Core Reset handling */
5726 void
5727 qla83xx_nic_core_reset_work(struct work_struct *work)
5728 {
5729 	struct qla_hw_data *ha =
5730 		container_of(work, struct qla_hw_data, nic_core_reset);
5731 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5732 	uint32_t dev_state = 0;
5733 
5734 	if (IS_QLA2031(ha)) {
5735 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
5736 			ql_log(ql_log_warn, base_vha, 0xb081,
5737 			    "Failed to dump mctp\n");
5738 		return;
5739 	}
5740 
5741 	if (!ha->flags.nic_core_reset_hdlr_active) {
5742 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
5743 			qla83xx_idc_lock(base_vha, 0);
5744 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5745 			    &dev_state);
5746 			qla83xx_idc_unlock(base_vha, 0);
5747 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
5748 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
5749 				    "Nic Core f/w is alive.\n");
5750 				return;
5751 			}
5752 		}
5753 
5754 		ha->flags.nic_core_reset_hdlr_active = 1;
5755 		if (qla83xx_nic_core_reset(base_vha)) {
5756 			/* NIC Core reset failed. */
5757 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
5758 			    "NIC Core reset failed.\n");
5759 		}
5760 		ha->flags.nic_core_reset_hdlr_active = 0;
5761 	}
5762 }
5763 
5764 /* Work: Handle 8200 IDC aens */
5765 void
5766 qla83xx_service_idc_aen(struct work_struct *work)
5767 {
5768 	struct qla_hw_data *ha =
5769 		container_of(work, struct qla_hw_data, idc_aen);
5770 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5771 	uint32_t dev_state, idc_control;
5772 
5773 	qla83xx_idc_lock(base_vha, 0);
5774 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5775 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
5776 	qla83xx_idc_unlock(base_vha, 0);
5777 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
5778 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
5779 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
5780 			    "Application requested NIC Core Reset.\n");
5781 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5782 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
5783 		    QLA_SUCCESS) {
5784 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
5785 			    "Other protocol driver requested NIC Core Reset.\n");
5786 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5787 		}
5788 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
5789 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
5790 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5791 	}
5792 }
5793 
5794 /*
5795  * Control the frequency of IDC lock retries
5796  */
5797 #define QLA83XX_WAIT_LOGIC_MS	100
5798 
5799 static int
5800 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
5801 {
5802 	int rval;
5803 	uint32_t data;
5804 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
5805 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
5806 	struct qla_hw_data *ha = base_vha->hw;
5807 
5808 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
5809 	    "Trying force recovery of the IDC lock.\n");
5810 
5811 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
5812 	if (rval)
5813 		return rval;
5814 
5815 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
5816 		return QLA_SUCCESS;
5817 	} else {
5818 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
5819 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5820 		    data);
5821 		if (rval)
5822 			return rval;
5823 
5824 		msleep(200);
5825 
5826 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5827 		    &data);
5828 		if (rval)
5829 			return rval;
5830 
5831 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
5832 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
5833 					~(idc_lck_rcvry_stage_mask));
5834 			rval = qla83xx_wr_reg(base_vha,
5835 			    QLA83XX_IDC_LOCK_RECOVERY, data);
5836 			if (rval)
5837 				return rval;
5838 
5839 			/* Forcefully perform IDC UnLock */
5840 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
5841 			    &data);
5842 			if (rval)
5843 				return rval;
5844 			/* Clear lock-id by setting 0xff */
5845 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5846 			    0xff);
5847 			if (rval)
5848 				return rval;
5849 			/* Clear lock-recovery by setting 0x0 */
5850 			rval = qla83xx_wr_reg(base_vha,
5851 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
5852 			if (rval)
5853 				return rval;
5854 		} else
5855 			return QLA_SUCCESS;
5856 	}
5857 
5858 	return rval;
5859 }
5860 
5861 static int
5862 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
5863 {
5864 	int rval = QLA_SUCCESS;
5865 	uint32_t o_drv_lockid, n_drv_lockid;
5866 	unsigned long lock_recovery_timeout;
5867 
5868 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
5869 retry_lockid:
5870 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
5871 	if (rval)
5872 		goto exit;
5873 
5874 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
5875 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
5876 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
5877 			return QLA_SUCCESS;
5878 		else
5879 			return QLA_FUNCTION_FAILED;
5880 	}
5881 
5882 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
5883 	if (rval)
5884 		goto exit;
5885 
5886 	if (o_drv_lockid == n_drv_lockid) {
5887 		msleep(QLA83XX_WAIT_LOGIC_MS);
5888 		goto retry_lockid;
5889 	} else
5890 		return QLA_SUCCESS;
5891 
5892 exit:
5893 	return rval;
5894 }
5895 
5896 /*
5897  * Context: task, can sleep
5898  */
5899 void
5900 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
5901 {
5902 	uint32_t data;
5903 	uint32_t lock_owner;
5904 	struct qla_hw_data *ha = base_vha->hw;
5905 
5906 	might_sleep();
5907 
5908 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
5909 retry_lock:
5910 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
5911 	    == QLA_SUCCESS) {
5912 		if (data) {
5913 			/* Setting lock-id to our function-number */
5914 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5915 			    ha->portnum);
5916 		} else {
5917 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5918 			    &lock_owner);
5919 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
5920 			    "Failed to acquire IDC lock, acquired by %d, "
5921 			    "retrying...\n", lock_owner);
5922 
5923 			/* Retry/Perform IDC-Lock recovery */
5924 			if (qla83xx_idc_lock_recovery(base_vha)
5925 			    == QLA_SUCCESS) {
5926 				msleep(QLA83XX_WAIT_LOGIC_MS);
5927 				goto retry_lock;
5928 			} else
5929 				ql_log(ql_log_warn, base_vha, 0xb075,
5930 				    "IDC Lock recovery FAILED.\n");
5931 		}
5932 
5933 	}
5934 
5935 	return;
5936 }
5937 
5938 static bool
5939 qla25xx_rdp_rsp_reduce_size(struct scsi_qla_host *vha,
5940 	struct purex_entry_24xx *purex)
5941 {
5942 	char fwstr[16];
5943 	u32 sid = purex->s_id[2] << 16 | purex->s_id[1] << 8 | purex->s_id[0];
5944 	struct port_database_24xx *pdb;
5945 
5946 	/* Domain Controller is always logged-out. */
5947 	/* if RDP request is not from Domain Controller: */
5948 	if (sid != 0xfffc01)
5949 		return false;
5950 
5951 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: s_id=%#x\n", __func__, sid);
5952 
5953 	pdb = kzalloc(sizeof(*pdb), GFP_KERNEL);
5954 	if (!pdb) {
5955 		ql_dbg(ql_dbg_init, vha, 0x0181,
5956 		    "%s: Failed allocate pdb\n", __func__);
5957 	} else if (qla24xx_get_port_database(vha,
5958 				le16_to_cpu(purex->nport_handle), pdb)) {
5959 		ql_dbg(ql_dbg_init, vha, 0x0181,
5960 		    "%s: Failed get pdb sid=%x\n", __func__, sid);
5961 	} else if (pdb->current_login_state != PDS_PLOGI_COMPLETE &&
5962 	    pdb->current_login_state != PDS_PRLI_COMPLETE) {
5963 		ql_dbg(ql_dbg_init, vha, 0x0181,
5964 		    "%s: Port not logged in sid=%#x\n", __func__, sid);
5965 	} else {
5966 		/* RDP request is from logged in port */
5967 		kfree(pdb);
5968 		return false;
5969 	}
5970 	kfree(pdb);
5971 
5972 	vha->hw->isp_ops->fw_version_str(vha, fwstr, sizeof(fwstr));
5973 	fwstr[strcspn(fwstr, " ")] = 0;
5974 	/* if FW version allows RDP response length upto 2048 bytes: */
5975 	if (strcmp(fwstr, "8.09.00") > 0 || strcmp(fwstr, "8.05.65") == 0)
5976 		return false;
5977 
5978 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: fw=%s\n", __func__, fwstr);
5979 
5980 	/* RDP response length is to be reduced to maximum 256 bytes */
5981 	return true;
5982 }
5983 
5984 /*
5985  * Function Name: qla24xx_process_purex_iocb
5986  *
5987  * Description:
5988  * Prepare a RDP response and send to Fabric switch
5989  *
5990  * PARAMETERS:
5991  * vha:	SCSI qla host
5992  * purex: RDP request received by HBA
5993  */
5994 void qla24xx_process_purex_rdp(struct scsi_qla_host *vha,
5995 			       struct purex_item *item)
5996 {
5997 	struct qla_hw_data *ha = vha->hw;
5998 	struct purex_entry_24xx *purex =
5999 	    (struct purex_entry_24xx *)&item->iocb;
6000 	dma_addr_t rsp_els_dma;
6001 	dma_addr_t rsp_payload_dma;
6002 	dma_addr_t stat_dma;
6003 	dma_addr_t sfp_dma;
6004 	struct els_entry_24xx *rsp_els = NULL;
6005 	struct rdp_rsp_payload *rsp_payload = NULL;
6006 	struct link_statistics *stat = NULL;
6007 	uint8_t *sfp = NULL;
6008 	uint16_t sfp_flags = 0;
6009 	uint rsp_payload_length = sizeof(*rsp_payload);
6010 	int rval;
6011 
6012 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0180,
6013 	    "%s: Enter\n", __func__);
6014 
6015 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0181,
6016 	    "-------- ELS REQ -------\n");
6017 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0182,
6018 	    purex, sizeof(*purex));
6019 
6020 	if (qla25xx_rdp_rsp_reduce_size(vha, purex)) {
6021 		rsp_payload_length =
6022 		    offsetof(typeof(*rsp_payload), optical_elmt_desc);
6023 		ql_dbg(ql_dbg_init, vha, 0x0181,
6024 		    "Reducing RSP payload length to %u bytes...\n",
6025 		    rsp_payload_length);
6026 	}
6027 
6028 	rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6029 	    &rsp_els_dma, GFP_KERNEL);
6030 	if (!rsp_els) {
6031 		ql_log(ql_log_warn, vha, 0x0183,
6032 		    "Failed allocate dma buffer ELS RSP.\n");
6033 		goto dealloc;
6034 	}
6035 
6036 	rsp_payload = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6037 	    &rsp_payload_dma, GFP_KERNEL);
6038 	if (!rsp_payload) {
6039 		ql_log(ql_log_warn, vha, 0x0184,
6040 		    "Failed allocate dma buffer ELS RSP payload.\n");
6041 		goto dealloc;
6042 	}
6043 
6044 	sfp = dma_alloc_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6045 	    &sfp_dma, GFP_KERNEL);
6046 
6047 	stat = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stat),
6048 	    &stat_dma, GFP_KERNEL);
6049 
6050 	/* Prepare Response IOCB */
6051 	rsp_els->entry_type = ELS_IOCB_TYPE;
6052 	rsp_els->entry_count = 1;
6053 	rsp_els->sys_define = 0;
6054 	rsp_els->entry_status = 0;
6055 	rsp_els->handle = 0;
6056 	rsp_els->nport_handle = purex->nport_handle;
6057 	rsp_els->tx_dsd_count = cpu_to_le16(1);
6058 	rsp_els->vp_index = purex->vp_idx;
6059 	rsp_els->sof_type = EST_SOFI3;
6060 	rsp_els->rx_xchg_address = purex->rx_xchg_addr;
6061 	rsp_els->rx_dsd_count = 0;
6062 	rsp_els->opcode = purex->els_frame_payload[0];
6063 
6064 	rsp_els->d_id[0] = purex->s_id[0];
6065 	rsp_els->d_id[1] = purex->s_id[1];
6066 	rsp_els->d_id[2] = purex->s_id[2];
6067 
6068 	rsp_els->control_flags = cpu_to_le16(EPD_ELS_ACC);
6069 	rsp_els->rx_byte_count = 0;
6070 	rsp_els->tx_byte_count = cpu_to_le32(rsp_payload_length);
6071 
6072 	put_unaligned_le64(rsp_payload_dma, &rsp_els->tx_address);
6073 	rsp_els->tx_len = rsp_els->tx_byte_count;
6074 
6075 	rsp_els->rx_address = 0;
6076 	rsp_els->rx_len = 0;
6077 
6078 	/* Prepare Response Payload */
6079 	rsp_payload->hdr.cmd = cpu_to_be32(0x2 << 24); /* LS_ACC */
6080 	rsp_payload->hdr.len = cpu_to_be32(le32_to_cpu(rsp_els->tx_byte_count) -
6081 					   sizeof(rsp_payload->hdr));
6082 
6083 	/* Link service Request Info Descriptor */
6084 	rsp_payload->ls_req_info_desc.desc_tag = cpu_to_be32(0x1);
6085 	rsp_payload->ls_req_info_desc.desc_len =
6086 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc));
6087 	rsp_payload->ls_req_info_desc.req_payload_word_0 =
6088 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6089 
6090 	/* Link service Request Info Descriptor 2 */
6091 	rsp_payload->ls_req_info_desc2.desc_tag = cpu_to_be32(0x1);
6092 	rsp_payload->ls_req_info_desc2.desc_len =
6093 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc2));
6094 	rsp_payload->ls_req_info_desc2.req_payload_word_0 =
6095 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6096 
6097 
6098 	rsp_payload->sfp_diag_desc.desc_tag = cpu_to_be32(0x10000);
6099 	rsp_payload->sfp_diag_desc.desc_len =
6100 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->sfp_diag_desc));
6101 
6102 	if (sfp) {
6103 		/* SFP Flags */
6104 		memset(sfp, 0, SFP_RTDI_LEN);
6105 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x7, 2, 0);
6106 		if (!rval) {
6107 			/* SFP Flags bits 3-0: Port Tx Laser Type */
6108 			if (sfp[0] & BIT_2 || sfp[1] & (BIT_6|BIT_5))
6109 				sfp_flags |= BIT_0; /* short wave */
6110 			else if (sfp[0] & BIT_1)
6111 				sfp_flags |= BIT_1; /* long wave 1310nm */
6112 			else if (sfp[1] & BIT_4)
6113 				sfp_flags |= BIT_1|BIT_0; /* long wave 1550nm */
6114 		}
6115 
6116 		/* SFP Type */
6117 		memset(sfp, 0, SFP_RTDI_LEN);
6118 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x0, 1, 0);
6119 		if (!rval) {
6120 			sfp_flags |= BIT_4; /* optical */
6121 			if (sfp[0] == 0x3)
6122 				sfp_flags |= BIT_6; /* sfp+ */
6123 		}
6124 
6125 		rsp_payload->sfp_diag_desc.sfp_flags = cpu_to_be16(sfp_flags);
6126 
6127 		/* SFP Diagnostics */
6128 		memset(sfp, 0, SFP_RTDI_LEN);
6129 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0x60, 10, 0);
6130 		if (!rval) {
6131 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6132 			rsp_payload->sfp_diag_desc.temperature = trx[0];
6133 			rsp_payload->sfp_diag_desc.vcc = trx[1];
6134 			rsp_payload->sfp_diag_desc.tx_bias = trx[2];
6135 			rsp_payload->sfp_diag_desc.tx_power = trx[3];
6136 			rsp_payload->sfp_diag_desc.rx_power = trx[4];
6137 		}
6138 	}
6139 
6140 	/* Port Speed Descriptor */
6141 	rsp_payload->port_speed_desc.desc_tag = cpu_to_be32(0x10001);
6142 	rsp_payload->port_speed_desc.desc_len =
6143 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_speed_desc));
6144 	rsp_payload->port_speed_desc.speed_capab = cpu_to_be16(
6145 	    qla25xx_fdmi_port_speed_capability(ha));
6146 	rsp_payload->port_speed_desc.operating_speed = cpu_to_be16(
6147 	    qla25xx_fdmi_port_speed_currently(ha));
6148 
6149 	/* Link Error Status Descriptor */
6150 	rsp_payload->ls_err_desc.desc_tag = cpu_to_be32(0x10002);
6151 	rsp_payload->ls_err_desc.desc_len =
6152 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_err_desc));
6153 
6154 	if (stat) {
6155 		rval = qla24xx_get_isp_stats(vha, stat, stat_dma, 0);
6156 		if (!rval) {
6157 			rsp_payload->ls_err_desc.link_fail_cnt =
6158 			    cpu_to_be32(le32_to_cpu(stat->link_fail_cnt));
6159 			rsp_payload->ls_err_desc.loss_sync_cnt =
6160 			    cpu_to_be32(le32_to_cpu(stat->loss_sync_cnt));
6161 			rsp_payload->ls_err_desc.loss_sig_cnt =
6162 			    cpu_to_be32(le32_to_cpu(stat->loss_sig_cnt));
6163 			rsp_payload->ls_err_desc.prim_seq_err_cnt =
6164 			    cpu_to_be32(le32_to_cpu(stat->prim_seq_err_cnt));
6165 			rsp_payload->ls_err_desc.inval_xmit_word_cnt =
6166 			    cpu_to_be32(le32_to_cpu(stat->inval_xmit_word_cnt));
6167 			rsp_payload->ls_err_desc.inval_crc_cnt =
6168 			    cpu_to_be32(le32_to_cpu(stat->inval_crc_cnt));
6169 			rsp_payload->ls_err_desc.pn_port_phy_type |= BIT_6;
6170 		}
6171 	}
6172 
6173 	/* Portname Descriptor */
6174 	rsp_payload->port_name_diag_desc.desc_tag = cpu_to_be32(0x10003);
6175 	rsp_payload->port_name_diag_desc.desc_len =
6176 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_diag_desc));
6177 	memcpy(rsp_payload->port_name_diag_desc.WWNN,
6178 	    vha->node_name,
6179 	    sizeof(rsp_payload->port_name_diag_desc.WWNN));
6180 	memcpy(rsp_payload->port_name_diag_desc.WWPN,
6181 	    vha->port_name,
6182 	    sizeof(rsp_payload->port_name_diag_desc.WWPN));
6183 
6184 	/* F-Port Portname Descriptor */
6185 	rsp_payload->port_name_direct_desc.desc_tag = cpu_to_be32(0x10003);
6186 	rsp_payload->port_name_direct_desc.desc_len =
6187 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_direct_desc));
6188 	memcpy(rsp_payload->port_name_direct_desc.WWNN,
6189 	    vha->fabric_node_name,
6190 	    sizeof(rsp_payload->port_name_direct_desc.WWNN));
6191 	memcpy(rsp_payload->port_name_direct_desc.WWPN,
6192 	    vha->fabric_port_name,
6193 	    sizeof(rsp_payload->port_name_direct_desc.WWPN));
6194 
6195 	/* Bufer Credit Descriptor */
6196 	rsp_payload->buffer_credit_desc.desc_tag = cpu_to_be32(0x10006);
6197 	rsp_payload->buffer_credit_desc.desc_len =
6198 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->buffer_credit_desc));
6199 	rsp_payload->buffer_credit_desc.fcport_b2b = 0;
6200 	rsp_payload->buffer_credit_desc.attached_fcport_b2b = cpu_to_be32(0);
6201 	rsp_payload->buffer_credit_desc.fcport_rtt = cpu_to_be32(0);
6202 
6203 	if (ha->flags.plogi_template_valid) {
6204 		uint32_t tmp =
6205 		be16_to_cpu(ha->plogi_els_payld.fl_csp.sp_bb_cred);
6206 		rsp_payload->buffer_credit_desc.fcport_b2b = cpu_to_be32(tmp);
6207 	}
6208 
6209 	if (rsp_payload_length < sizeof(*rsp_payload))
6210 		goto send;
6211 
6212 	/* Optical Element Descriptor, Temperature */
6213 	rsp_payload->optical_elmt_desc[0].desc_tag = cpu_to_be32(0x10007);
6214 	rsp_payload->optical_elmt_desc[0].desc_len =
6215 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6216 	/* Optical Element Descriptor, Voltage */
6217 	rsp_payload->optical_elmt_desc[1].desc_tag = cpu_to_be32(0x10007);
6218 	rsp_payload->optical_elmt_desc[1].desc_len =
6219 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6220 	/* Optical Element Descriptor, Tx Bias Current */
6221 	rsp_payload->optical_elmt_desc[2].desc_tag = cpu_to_be32(0x10007);
6222 	rsp_payload->optical_elmt_desc[2].desc_len =
6223 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6224 	/* Optical Element Descriptor, Tx Power */
6225 	rsp_payload->optical_elmt_desc[3].desc_tag = cpu_to_be32(0x10007);
6226 	rsp_payload->optical_elmt_desc[3].desc_len =
6227 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6228 	/* Optical Element Descriptor, Rx Power */
6229 	rsp_payload->optical_elmt_desc[4].desc_tag = cpu_to_be32(0x10007);
6230 	rsp_payload->optical_elmt_desc[4].desc_len =
6231 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6232 
6233 	if (sfp) {
6234 		memset(sfp, 0, SFP_RTDI_LEN);
6235 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0, 64, 0);
6236 		if (!rval) {
6237 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6238 
6239 			/* Optical Element Descriptor, Temperature */
6240 			rsp_payload->optical_elmt_desc[0].high_alarm = trx[0];
6241 			rsp_payload->optical_elmt_desc[0].low_alarm = trx[1];
6242 			rsp_payload->optical_elmt_desc[0].high_warn = trx[2];
6243 			rsp_payload->optical_elmt_desc[0].low_warn = trx[3];
6244 			rsp_payload->optical_elmt_desc[0].element_flags =
6245 			    cpu_to_be32(1 << 28);
6246 
6247 			/* Optical Element Descriptor, Voltage */
6248 			rsp_payload->optical_elmt_desc[1].high_alarm = trx[4];
6249 			rsp_payload->optical_elmt_desc[1].low_alarm = trx[5];
6250 			rsp_payload->optical_elmt_desc[1].high_warn = trx[6];
6251 			rsp_payload->optical_elmt_desc[1].low_warn = trx[7];
6252 			rsp_payload->optical_elmt_desc[1].element_flags =
6253 			    cpu_to_be32(2 << 28);
6254 
6255 			/* Optical Element Descriptor, Tx Bias Current */
6256 			rsp_payload->optical_elmt_desc[2].high_alarm = trx[8];
6257 			rsp_payload->optical_elmt_desc[2].low_alarm = trx[9];
6258 			rsp_payload->optical_elmt_desc[2].high_warn = trx[10];
6259 			rsp_payload->optical_elmt_desc[2].low_warn = trx[11];
6260 			rsp_payload->optical_elmt_desc[2].element_flags =
6261 			    cpu_to_be32(3 << 28);
6262 
6263 			/* Optical Element Descriptor, Tx Power */
6264 			rsp_payload->optical_elmt_desc[3].high_alarm = trx[12];
6265 			rsp_payload->optical_elmt_desc[3].low_alarm = trx[13];
6266 			rsp_payload->optical_elmt_desc[3].high_warn = trx[14];
6267 			rsp_payload->optical_elmt_desc[3].low_warn = trx[15];
6268 			rsp_payload->optical_elmt_desc[3].element_flags =
6269 			    cpu_to_be32(4 << 28);
6270 
6271 			/* Optical Element Descriptor, Rx Power */
6272 			rsp_payload->optical_elmt_desc[4].high_alarm = trx[16];
6273 			rsp_payload->optical_elmt_desc[4].low_alarm = trx[17];
6274 			rsp_payload->optical_elmt_desc[4].high_warn = trx[18];
6275 			rsp_payload->optical_elmt_desc[4].low_warn = trx[19];
6276 			rsp_payload->optical_elmt_desc[4].element_flags =
6277 			    cpu_to_be32(5 << 28);
6278 		}
6279 
6280 		memset(sfp, 0, SFP_RTDI_LEN);
6281 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 112, 64, 0);
6282 		if (!rval) {
6283 			/* Temperature high/low alarm/warning */
6284 			rsp_payload->optical_elmt_desc[0].element_flags |=
6285 			    cpu_to_be32(
6286 				(sfp[0] >> 7 & 1) << 3 |
6287 				(sfp[0] >> 6 & 1) << 2 |
6288 				(sfp[4] >> 7 & 1) << 1 |
6289 				(sfp[4] >> 6 & 1) << 0);
6290 
6291 			/* Voltage high/low alarm/warning */
6292 			rsp_payload->optical_elmt_desc[1].element_flags |=
6293 			    cpu_to_be32(
6294 				(sfp[0] >> 5 & 1) << 3 |
6295 				(sfp[0] >> 4 & 1) << 2 |
6296 				(sfp[4] >> 5 & 1) << 1 |
6297 				(sfp[4] >> 4 & 1) << 0);
6298 
6299 			/* Tx Bias Current high/low alarm/warning */
6300 			rsp_payload->optical_elmt_desc[2].element_flags |=
6301 			    cpu_to_be32(
6302 				(sfp[0] >> 3 & 1) << 3 |
6303 				(sfp[0] >> 2 & 1) << 2 |
6304 				(sfp[4] >> 3 & 1) << 1 |
6305 				(sfp[4] >> 2 & 1) << 0);
6306 
6307 			/* Tx Power high/low alarm/warning */
6308 			rsp_payload->optical_elmt_desc[3].element_flags |=
6309 			    cpu_to_be32(
6310 				(sfp[0] >> 1 & 1) << 3 |
6311 				(sfp[0] >> 0 & 1) << 2 |
6312 				(sfp[4] >> 1 & 1) << 1 |
6313 				(sfp[4] >> 0 & 1) << 0);
6314 
6315 			/* Rx Power high/low alarm/warning */
6316 			rsp_payload->optical_elmt_desc[4].element_flags |=
6317 			    cpu_to_be32(
6318 				(sfp[1] >> 7 & 1) << 3 |
6319 				(sfp[1] >> 6 & 1) << 2 |
6320 				(sfp[5] >> 7 & 1) << 1 |
6321 				(sfp[5] >> 6 & 1) << 0);
6322 		}
6323 	}
6324 
6325 	/* Optical Product Data Descriptor */
6326 	rsp_payload->optical_prod_desc.desc_tag = cpu_to_be32(0x10008);
6327 	rsp_payload->optical_prod_desc.desc_len =
6328 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->optical_prod_desc));
6329 
6330 	if (sfp) {
6331 		memset(sfp, 0, SFP_RTDI_LEN);
6332 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 20, 64, 0);
6333 		if (!rval) {
6334 			memcpy(rsp_payload->optical_prod_desc.vendor_name,
6335 			    sfp + 0,
6336 			    sizeof(rsp_payload->optical_prod_desc.vendor_name));
6337 			memcpy(rsp_payload->optical_prod_desc.part_number,
6338 			    sfp + 20,
6339 			    sizeof(rsp_payload->optical_prod_desc.part_number));
6340 			memcpy(rsp_payload->optical_prod_desc.revision,
6341 			    sfp + 36,
6342 			    sizeof(rsp_payload->optical_prod_desc.revision));
6343 			memcpy(rsp_payload->optical_prod_desc.serial_number,
6344 			    sfp + 48,
6345 			    sizeof(rsp_payload->optical_prod_desc.serial_number));
6346 		}
6347 
6348 		memset(sfp, 0, SFP_RTDI_LEN);
6349 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 84, 8, 0);
6350 		if (!rval) {
6351 			memcpy(rsp_payload->optical_prod_desc.date,
6352 			    sfp + 0,
6353 			    sizeof(rsp_payload->optical_prod_desc.date));
6354 		}
6355 	}
6356 
6357 send:
6358 	ql_dbg(ql_dbg_init, vha, 0x0183,
6359 	    "Sending ELS Response to RDP Request...\n");
6360 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0184,
6361 	    "-------- ELS RSP -------\n");
6362 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0185,
6363 	    rsp_els, sizeof(*rsp_els));
6364 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0186,
6365 	    "-------- ELS RSP PAYLOAD -------\n");
6366 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0187,
6367 	    rsp_payload, rsp_payload_length);
6368 
6369 	rval = qla2x00_issue_iocb(vha, rsp_els, rsp_els_dma, 0);
6370 
6371 	if (rval) {
6372 		ql_log(ql_log_warn, vha, 0x0188,
6373 		    "%s: iocb failed to execute -> %x\n", __func__, rval);
6374 	} else if (rsp_els->comp_status) {
6375 		ql_log(ql_log_warn, vha, 0x0189,
6376 		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
6377 		    __func__, rsp_els->comp_status,
6378 		    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
6379 	} else {
6380 		ql_dbg(ql_dbg_init, vha, 0x018a, "%s: done.\n", __func__);
6381 	}
6382 
6383 dealloc:
6384 	if (stat)
6385 		dma_free_coherent(&ha->pdev->dev, sizeof(*stat),
6386 		    stat, stat_dma);
6387 	if (sfp)
6388 		dma_free_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6389 		    sfp, sfp_dma);
6390 	if (rsp_payload)
6391 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6392 		    rsp_payload, rsp_payload_dma);
6393 	if (rsp_els)
6394 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6395 		    rsp_els, rsp_els_dma);
6396 }
6397 
6398 void
6399 qla24xx_free_purex_item(struct purex_item *item)
6400 {
6401 	if (item == &item->vha->default_item)
6402 		memset(&item->vha->default_item, 0, sizeof(struct purex_item));
6403 	else
6404 		kfree(item);
6405 }
6406 
6407 void qla24xx_process_purex_list(struct purex_list *list)
6408 {
6409 	struct list_head head = LIST_HEAD_INIT(head);
6410 	struct purex_item *item, *next;
6411 	ulong flags;
6412 
6413 	spin_lock_irqsave(&list->lock, flags);
6414 	list_splice_init(&list->head, &head);
6415 	spin_unlock_irqrestore(&list->lock, flags);
6416 
6417 	list_for_each_entry_safe(item, next, &head, list) {
6418 		list_del(&item->list);
6419 		item->process_item(item->vha, item);
6420 		qla24xx_free_purex_item(item);
6421 	}
6422 }
6423 
6424 /*
6425  * Context: task, can sleep
6426  */
6427 void
6428 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
6429 {
6430 #if 0
6431 	uint16_t options = (requester_id << 15) | BIT_7;
6432 #endif
6433 	uint16_t retry;
6434 	uint32_t data;
6435 	struct qla_hw_data *ha = base_vha->hw;
6436 
6437 	might_sleep();
6438 
6439 	/* IDC-unlock implementation using driver-unlock/lock-id
6440 	 * remote registers
6441 	 */
6442 	retry = 0;
6443 retry_unlock:
6444 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
6445 	    == QLA_SUCCESS) {
6446 		if (data == ha->portnum) {
6447 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
6448 			/* Clearing lock-id by setting 0xff */
6449 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
6450 		} else if (retry < 10) {
6451 			/* SV: XXX: IDC unlock retrying needed here? */
6452 
6453 			/* Retry for IDC-unlock */
6454 			msleep(QLA83XX_WAIT_LOGIC_MS);
6455 			retry++;
6456 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
6457 			    "Failed to release IDC lock, retrying=%d\n", retry);
6458 			goto retry_unlock;
6459 		}
6460 	} else if (retry < 10) {
6461 		/* Retry for IDC-unlock */
6462 		msleep(QLA83XX_WAIT_LOGIC_MS);
6463 		retry++;
6464 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
6465 		    "Failed to read drv-lockid, retrying=%d\n", retry);
6466 		goto retry_unlock;
6467 	}
6468 
6469 	return;
6470 
6471 #if 0
6472 	/* XXX: IDC-unlock implementation using access-control mbx */
6473 	retry = 0;
6474 retry_unlock2:
6475 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
6476 		if (retry < 10) {
6477 			/* Retry for IDC-unlock */
6478 			msleep(QLA83XX_WAIT_LOGIC_MS);
6479 			retry++;
6480 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
6481 			    "Failed to release IDC lock, retrying=%d\n", retry);
6482 			goto retry_unlock2;
6483 		}
6484 	}
6485 
6486 	return;
6487 #endif
6488 }
6489 
6490 int
6491 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6492 {
6493 	int rval = QLA_SUCCESS;
6494 	struct qla_hw_data *ha = vha->hw;
6495 	uint32_t drv_presence;
6496 
6497 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6498 	if (rval == QLA_SUCCESS) {
6499 		drv_presence |= (1 << ha->portnum);
6500 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6501 		    drv_presence);
6502 	}
6503 
6504 	return rval;
6505 }
6506 
6507 int
6508 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6509 {
6510 	int rval = QLA_SUCCESS;
6511 
6512 	qla83xx_idc_lock(vha, 0);
6513 	rval = __qla83xx_set_drv_presence(vha);
6514 	qla83xx_idc_unlock(vha, 0);
6515 
6516 	return rval;
6517 }
6518 
6519 int
6520 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6521 {
6522 	int rval = QLA_SUCCESS;
6523 	struct qla_hw_data *ha = vha->hw;
6524 	uint32_t drv_presence;
6525 
6526 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6527 	if (rval == QLA_SUCCESS) {
6528 		drv_presence &= ~(1 << ha->portnum);
6529 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6530 		    drv_presence);
6531 	}
6532 
6533 	return rval;
6534 }
6535 
6536 int
6537 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6538 {
6539 	int rval = QLA_SUCCESS;
6540 
6541 	qla83xx_idc_lock(vha, 0);
6542 	rval = __qla83xx_clear_drv_presence(vha);
6543 	qla83xx_idc_unlock(vha, 0);
6544 
6545 	return rval;
6546 }
6547 
6548 static void
6549 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
6550 {
6551 	struct qla_hw_data *ha = vha->hw;
6552 	uint32_t drv_ack, drv_presence;
6553 	unsigned long ack_timeout;
6554 
6555 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
6556 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
6557 	while (1) {
6558 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6559 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6560 		if ((drv_ack & drv_presence) == drv_presence)
6561 			break;
6562 
6563 		if (time_after_eq(jiffies, ack_timeout)) {
6564 			ql_log(ql_log_warn, vha, 0xb067,
6565 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
6566 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
6567 			/*
6568 			 * The function(s) which did not ack in time are forced
6569 			 * to withdraw any further participation in the IDC
6570 			 * reset.
6571 			 */
6572 			if (drv_ack != drv_presence)
6573 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6574 				    drv_ack);
6575 			break;
6576 		}
6577 
6578 		qla83xx_idc_unlock(vha, 0);
6579 		msleep(1000);
6580 		qla83xx_idc_lock(vha, 0);
6581 	}
6582 
6583 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
6584 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
6585 }
6586 
6587 static int
6588 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
6589 {
6590 	int rval = QLA_SUCCESS;
6591 	uint32_t idc_control;
6592 
6593 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
6594 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
6595 
6596 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
6597 	__qla83xx_get_idc_control(vha, &idc_control);
6598 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
6599 	__qla83xx_set_idc_control(vha, 0);
6600 
6601 	qla83xx_idc_unlock(vha, 0);
6602 	rval = qla83xx_restart_nic_firmware(vha);
6603 	qla83xx_idc_lock(vha, 0);
6604 
6605 	if (rval != QLA_SUCCESS) {
6606 		ql_log(ql_log_fatal, vha, 0xb06a,
6607 		    "Failed to restart NIC f/w.\n");
6608 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
6609 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
6610 	} else {
6611 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
6612 		    "Success in restarting nic f/w.\n");
6613 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
6614 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
6615 	}
6616 
6617 	return rval;
6618 }
6619 
6620 /* Assumes idc_lock always held on entry */
6621 int
6622 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
6623 {
6624 	struct qla_hw_data *ha = base_vha->hw;
6625 	int rval = QLA_SUCCESS;
6626 	unsigned long dev_init_timeout;
6627 	uint32_t dev_state;
6628 
6629 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
6630 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
6631 
6632 	while (1) {
6633 
6634 		if (time_after_eq(jiffies, dev_init_timeout)) {
6635 			ql_log(ql_log_warn, base_vha, 0xb06e,
6636 			    "Initialization TIMEOUT!\n");
6637 			/* Init timeout. Disable further NIC Core
6638 			 * communication.
6639 			 */
6640 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
6641 				QLA8XXX_DEV_FAILED);
6642 			ql_log(ql_log_info, base_vha, 0xb06f,
6643 			    "HW State: FAILED.\n");
6644 		}
6645 
6646 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6647 		switch (dev_state) {
6648 		case QLA8XXX_DEV_READY:
6649 			if (ha->flags.nic_core_reset_owner)
6650 				qla83xx_idc_audit(base_vha,
6651 				    IDC_AUDIT_COMPLETION);
6652 			ha->flags.nic_core_reset_owner = 0;
6653 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
6654 			    "Reset_owner reset by 0x%x.\n",
6655 			    ha->portnum);
6656 			goto exit;
6657 		case QLA8XXX_DEV_COLD:
6658 			if (ha->flags.nic_core_reset_owner)
6659 				rval = qla83xx_device_bootstrap(base_vha);
6660 			else {
6661 			/* Wait for AEN to change device-state */
6662 				qla83xx_idc_unlock(base_vha, 0);
6663 				msleep(1000);
6664 				qla83xx_idc_lock(base_vha, 0);
6665 			}
6666 			break;
6667 		case QLA8XXX_DEV_INITIALIZING:
6668 			/* Wait for AEN to change device-state */
6669 			qla83xx_idc_unlock(base_vha, 0);
6670 			msleep(1000);
6671 			qla83xx_idc_lock(base_vha, 0);
6672 			break;
6673 		case QLA8XXX_DEV_NEED_RESET:
6674 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
6675 				qla83xx_need_reset_handler(base_vha);
6676 			else {
6677 				/* Wait for AEN to change device-state */
6678 				qla83xx_idc_unlock(base_vha, 0);
6679 				msleep(1000);
6680 				qla83xx_idc_lock(base_vha, 0);
6681 			}
6682 			/* reset timeout value after need reset handler */
6683 			dev_init_timeout = jiffies +
6684 			    (ha->fcoe_dev_init_timeout * HZ);
6685 			break;
6686 		case QLA8XXX_DEV_NEED_QUIESCENT:
6687 			/* XXX: DEBUG for now */
6688 			qla83xx_idc_unlock(base_vha, 0);
6689 			msleep(1000);
6690 			qla83xx_idc_lock(base_vha, 0);
6691 			break;
6692 		case QLA8XXX_DEV_QUIESCENT:
6693 			/* XXX: DEBUG for now */
6694 			if (ha->flags.quiesce_owner)
6695 				goto exit;
6696 
6697 			qla83xx_idc_unlock(base_vha, 0);
6698 			msleep(1000);
6699 			qla83xx_idc_lock(base_vha, 0);
6700 			dev_init_timeout = jiffies +
6701 			    (ha->fcoe_dev_init_timeout * HZ);
6702 			break;
6703 		case QLA8XXX_DEV_FAILED:
6704 			if (ha->flags.nic_core_reset_owner)
6705 				qla83xx_idc_audit(base_vha,
6706 				    IDC_AUDIT_COMPLETION);
6707 			ha->flags.nic_core_reset_owner = 0;
6708 			__qla83xx_clear_drv_presence(base_vha);
6709 			qla83xx_idc_unlock(base_vha, 0);
6710 			qla8xxx_dev_failed_handler(base_vha);
6711 			rval = QLA_FUNCTION_FAILED;
6712 			qla83xx_idc_lock(base_vha, 0);
6713 			goto exit;
6714 		case QLA8XXX_BAD_VALUE:
6715 			qla83xx_idc_unlock(base_vha, 0);
6716 			msleep(1000);
6717 			qla83xx_idc_lock(base_vha, 0);
6718 			break;
6719 		default:
6720 			ql_log(ql_log_warn, base_vha, 0xb071,
6721 			    "Unknown Device State: %x.\n", dev_state);
6722 			qla83xx_idc_unlock(base_vha, 0);
6723 			qla8xxx_dev_failed_handler(base_vha);
6724 			rval = QLA_FUNCTION_FAILED;
6725 			qla83xx_idc_lock(base_vha, 0);
6726 			goto exit;
6727 		}
6728 	}
6729 
6730 exit:
6731 	return rval;
6732 }
6733 
6734 void
6735 qla2x00_disable_board_on_pci_error(struct work_struct *work)
6736 {
6737 	struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
6738 	    board_disable);
6739 	struct pci_dev *pdev = ha->pdev;
6740 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6741 
6742 	ql_log(ql_log_warn, base_vha, 0x015b,
6743 	    "Disabling adapter.\n");
6744 
6745 	if (!atomic_read(&pdev->enable_cnt)) {
6746 		ql_log(ql_log_info, base_vha, 0xfffc,
6747 		    "PCI device disabled, no action req for PCI error=%lx\n",
6748 		    base_vha->pci_flags);
6749 		return;
6750 	}
6751 
6752 	/*
6753 	 * if UNLOADING flag is already set, then continue unload,
6754 	 * where it was set first.
6755 	 */
6756 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
6757 		return;
6758 
6759 	qla2x00_wait_for_sess_deletion(base_vha);
6760 
6761 	qla2x00_delete_all_vps(ha, base_vha);
6762 
6763 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
6764 
6765 	qla2x00_dfs_remove(base_vha);
6766 
6767 	qla84xx_put_chip(base_vha);
6768 
6769 	if (base_vha->timer_active)
6770 		qla2x00_stop_timer(base_vha);
6771 
6772 	base_vha->flags.online = 0;
6773 
6774 	qla2x00_destroy_deferred_work(ha);
6775 
6776 	/*
6777 	 * Do not try to stop beacon blink as it will issue a mailbox
6778 	 * command.
6779 	 */
6780 	qla2x00_free_sysfs_attr(base_vha, false);
6781 
6782 	fc_remove_host(base_vha->host);
6783 
6784 	scsi_remove_host(base_vha->host);
6785 
6786 	base_vha->flags.init_done = 0;
6787 	qla25xx_delete_queues(base_vha);
6788 	qla2x00_free_fcports(base_vha);
6789 	qla2x00_free_irqs(base_vha);
6790 	qla2x00_mem_free(ha);
6791 	qla82xx_md_free(base_vha);
6792 	qla2x00_free_queues(ha);
6793 
6794 	qla2x00_unmap_iobases(ha);
6795 
6796 	pci_release_selected_regions(ha->pdev, ha->bars);
6797 	pci_disable_pcie_error_reporting(pdev);
6798 	pci_disable_device(pdev);
6799 
6800 	/*
6801 	 * Let qla2x00_remove_one cleanup qla_hw_data on device removal.
6802 	 */
6803 }
6804 
6805 /**************************************************************************
6806 * qla2x00_do_dpc
6807 *   This kernel thread is a task that is schedule by the interrupt handler
6808 *   to perform the background processing for interrupts.
6809 *
6810 * Notes:
6811 * This task always run in the context of a kernel thread.  It
6812 * is kick-off by the driver's detect code and starts up
6813 * up one per adapter. It immediately goes to sleep and waits for
6814 * some fibre event.  When either the interrupt handler or
6815 * the timer routine detects a event it will one of the task
6816 * bits then wake us up.
6817 **************************************************************************/
6818 static int
6819 qla2x00_do_dpc(void *data)
6820 {
6821 	scsi_qla_host_t *base_vha;
6822 	struct qla_hw_data *ha;
6823 	uint32_t online;
6824 	struct qla_qpair *qpair;
6825 
6826 	ha = (struct qla_hw_data *)data;
6827 	base_vha = pci_get_drvdata(ha->pdev);
6828 
6829 	set_user_nice(current, MIN_NICE);
6830 
6831 	set_current_state(TASK_INTERRUPTIBLE);
6832 	while (!kthread_should_stop()) {
6833 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
6834 		    "DPC handler sleeping.\n");
6835 
6836 		schedule();
6837 
6838 		if (test_and_clear_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags))
6839 			qla_pci_set_eeh_busy(base_vha);
6840 
6841 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
6842 			goto end_loop;
6843 
6844 		if (ha->flags.eeh_busy) {
6845 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
6846 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
6847 			goto end_loop;
6848 		}
6849 
6850 		ha->dpc_active = 1;
6851 
6852 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
6853 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
6854 		    base_vha->dpc_flags);
6855 
6856 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
6857 			break;
6858 
6859 		if (IS_P3P_TYPE(ha)) {
6860 			if (IS_QLA8044(ha)) {
6861 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6862 					&base_vha->dpc_flags)) {
6863 					qla8044_idc_lock(ha);
6864 					qla8044_wr_direct(base_vha,
6865 						QLA8044_CRB_DEV_STATE_INDEX,
6866 						QLA8XXX_DEV_FAILED);
6867 					qla8044_idc_unlock(ha);
6868 					ql_log(ql_log_info, base_vha, 0x4004,
6869 						"HW State: FAILED.\n");
6870 					qla8044_device_state_handler(base_vha);
6871 					continue;
6872 				}
6873 
6874 			} else {
6875 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6876 					&base_vha->dpc_flags)) {
6877 					qla82xx_idc_lock(ha);
6878 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6879 						QLA8XXX_DEV_FAILED);
6880 					qla82xx_idc_unlock(ha);
6881 					ql_log(ql_log_info, base_vha, 0x0151,
6882 						"HW State: FAILED.\n");
6883 					qla82xx_device_state_handler(base_vha);
6884 					continue;
6885 				}
6886 			}
6887 
6888 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
6889 				&base_vha->dpc_flags)) {
6890 
6891 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
6892 				    "FCoE context reset scheduled.\n");
6893 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
6894 					&base_vha->dpc_flags))) {
6895 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
6896 						/* FCoE-ctx reset failed.
6897 						 * Escalate to chip-reset
6898 						 */
6899 						set_bit(ISP_ABORT_NEEDED,
6900 							&base_vha->dpc_flags);
6901 					}
6902 					clear_bit(ABORT_ISP_ACTIVE,
6903 						&base_vha->dpc_flags);
6904 				}
6905 
6906 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
6907 				    "FCoE context reset end.\n");
6908 			}
6909 		} else if (IS_QLAFX00(ha)) {
6910 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
6911 				&base_vha->dpc_flags)) {
6912 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
6913 				    "Firmware Reset Recovery\n");
6914 				if (qlafx00_reset_initialize(base_vha)) {
6915 					/* Failed. Abort isp later. */
6916 					if (!test_bit(UNLOADING,
6917 					    &base_vha->dpc_flags)) {
6918 						set_bit(ISP_UNRECOVERABLE,
6919 						    &base_vha->dpc_flags);
6920 						ql_dbg(ql_dbg_dpc, base_vha,
6921 						    0x4021,
6922 						    "Reset Recovery Failed\n");
6923 					}
6924 				}
6925 			}
6926 
6927 			if (test_and_clear_bit(FX00_TARGET_SCAN,
6928 				&base_vha->dpc_flags)) {
6929 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
6930 				    "ISPFx00 Target Scan scheduled\n");
6931 				if (qlafx00_rescan_isp(base_vha)) {
6932 					if (!test_bit(UNLOADING,
6933 					    &base_vha->dpc_flags))
6934 						set_bit(ISP_UNRECOVERABLE,
6935 						    &base_vha->dpc_flags);
6936 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
6937 					    "ISPFx00 Target Scan Failed\n");
6938 				}
6939 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
6940 				    "ISPFx00 Target Scan End\n");
6941 			}
6942 			if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
6943 				&base_vha->dpc_flags)) {
6944 				ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
6945 				    "ISPFx00 Host Info resend scheduled\n");
6946 				qlafx00_fx_disc(base_vha,
6947 				    &base_vha->hw->mr.fcport,
6948 				    FXDISC_REG_HOST_INFO);
6949 			}
6950 		}
6951 
6952 		if (test_and_clear_bit(DETECT_SFP_CHANGE,
6953 		    &base_vha->dpc_flags)) {
6954 			/* Semantic:
6955 			 *  - NO-OP -- await next ISP-ABORT. Preferred method
6956 			 *             to minimize disruptions that will occur
6957 			 *             when a forced chip-reset occurs.
6958 			 *  - Force -- ISP-ABORT scheduled.
6959 			 */
6960 			/* set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); */
6961 		}
6962 
6963 		if (test_and_clear_bit
6964 		    (ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
6965 		    !test_bit(UNLOADING, &base_vha->dpc_flags)) {
6966 			bool do_reset = true;
6967 
6968 			switch (base_vha->qlini_mode) {
6969 			case QLA2XXX_INI_MODE_ENABLED:
6970 				break;
6971 			case QLA2XXX_INI_MODE_DISABLED:
6972 				if (!qla_tgt_mode_enabled(base_vha) &&
6973 				    !ha->flags.fw_started)
6974 					do_reset = false;
6975 				break;
6976 			case QLA2XXX_INI_MODE_DUAL:
6977 				if (!qla_dual_mode_enabled(base_vha) &&
6978 				    !ha->flags.fw_started)
6979 					do_reset = false;
6980 				break;
6981 			default:
6982 				break;
6983 			}
6984 
6985 			if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
6986 			    &base_vha->dpc_flags))) {
6987 				base_vha->flags.online = 1;
6988 				ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
6989 				    "ISP abort scheduled.\n");
6990 				if (ha->isp_ops->abort_isp(base_vha)) {
6991 					/* failed. retry later */
6992 					set_bit(ISP_ABORT_NEEDED,
6993 					    &base_vha->dpc_flags);
6994 				}
6995 				clear_bit(ABORT_ISP_ACTIVE,
6996 						&base_vha->dpc_flags);
6997 				ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
6998 				    "ISP abort end.\n");
6999 			}
7000 		}
7001 
7002 		if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags)) {
7003 			if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
7004 				qla24xx_process_purex_list
7005 					(&base_vha->purex_list);
7006 				clear_bit(PROCESS_PUREX_IOCB,
7007 				    &base_vha->dpc_flags);
7008 			}
7009 		}
7010 
7011 		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
7012 		    &base_vha->dpc_flags)) {
7013 			qla2x00_update_fcports(base_vha);
7014 		}
7015 
7016 		if (IS_QLAFX00(ha))
7017 			goto loop_resync_check;
7018 
7019 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
7020 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
7021 			    "Quiescence mode scheduled.\n");
7022 			if (IS_P3P_TYPE(ha)) {
7023 				if (IS_QLA82XX(ha))
7024 					qla82xx_device_state_handler(base_vha);
7025 				if (IS_QLA8044(ha))
7026 					qla8044_device_state_handler(base_vha);
7027 				clear_bit(ISP_QUIESCE_NEEDED,
7028 				    &base_vha->dpc_flags);
7029 				if (!ha->flags.quiesce_owner) {
7030 					qla2x00_perform_loop_resync(base_vha);
7031 					if (IS_QLA82XX(ha)) {
7032 						qla82xx_idc_lock(ha);
7033 						qla82xx_clear_qsnt_ready(
7034 						    base_vha);
7035 						qla82xx_idc_unlock(ha);
7036 					} else if (IS_QLA8044(ha)) {
7037 						qla8044_idc_lock(ha);
7038 						qla8044_clear_qsnt_ready(
7039 						    base_vha);
7040 						qla8044_idc_unlock(ha);
7041 					}
7042 				}
7043 			} else {
7044 				clear_bit(ISP_QUIESCE_NEEDED,
7045 				    &base_vha->dpc_flags);
7046 				qla2x00_quiesce_io(base_vha);
7047 			}
7048 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
7049 			    "Quiescence mode end.\n");
7050 		}
7051 
7052 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
7053 				&base_vha->dpc_flags) &&
7054 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
7055 
7056 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
7057 			    "Reset marker scheduled.\n");
7058 			qla2x00_rst_aen(base_vha);
7059 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
7060 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
7061 			    "Reset marker end.\n");
7062 		}
7063 
7064 		/* Retry each device up to login retry count */
7065 		if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
7066 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
7067 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
7068 
7069 			if (!base_vha->relogin_jif ||
7070 			    time_after_eq(jiffies, base_vha->relogin_jif)) {
7071 				base_vha->relogin_jif = jiffies + HZ;
7072 				clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
7073 
7074 				ql_dbg(ql_dbg_disc, base_vha, 0x400d,
7075 				    "Relogin scheduled.\n");
7076 				qla24xx_post_relogin_work(base_vha);
7077 			}
7078 		}
7079 loop_resync_check:
7080 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
7081 		    &base_vha->dpc_flags)) {
7082 
7083 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
7084 			    "Loop resync scheduled.\n");
7085 
7086 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
7087 			    &base_vha->dpc_flags))) {
7088 
7089 				qla2x00_loop_resync(base_vha);
7090 
7091 				clear_bit(LOOP_RESYNC_ACTIVE,
7092 						&base_vha->dpc_flags);
7093 			}
7094 
7095 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
7096 			    "Loop resync end.\n");
7097 		}
7098 
7099 		if (IS_QLAFX00(ha))
7100 			goto intr_on_check;
7101 
7102 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
7103 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
7104 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
7105 			qla2xxx_flash_npiv_conf(base_vha);
7106 		}
7107 
7108 intr_on_check:
7109 		if (!ha->interrupts_on)
7110 			ha->isp_ops->enable_intrs(ha);
7111 
7112 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
7113 					&base_vha->dpc_flags)) {
7114 			if (ha->beacon_blink_led == 1)
7115 				ha->isp_ops->beacon_blink(base_vha);
7116 		}
7117 
7118 		/* qpair online check */
7119 		if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
7120 		    &base_vha->dpc_flags)) {
7121 			if (ha->flags.eeh_busy ||
7122 			    ha->flags.pci_channel_io_perm_failure)
7123 				online = 0;
7124 			else
7125 				online = 1;
7126 
7127 			mutex_lock(&ha->mq_lock);
7128 			list_for_each_entry(qpair, &base_vha->qp_list,
7129 			    qp_list_elem)
7130 			qpair->online = online;
7131 			mutex_unlock(&ha->mq_lock);
7132 		}
7133 
7134 		if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
7135 				       &base_vha->dpc_flags)) {
7136 			u16 threshold = ha->nvme_last_rptd_aen + ha->last_zio_threshold;
7137 
7138 			if (threshold > ha->orig_fw_xcb_count)
7139 				threshold = ha->orig_fw_xcb_count;
7140 
7141 			ql_log(ql_log_info, base_vha, 0xffffff,
7142 			       "SET ZIO Activity exchange threshold to %d.\n",
7143 			       threshold);
7144 			if (qla27xx_set_zio_threshold(base_vha, threshold)) {
7145 				ql_log(ql_log_info, base_vha, 0xffffff,
7146 				       "Unable to SET ZIO Activity exchange threshold to %d.\n",
7147 				       threshold);
7148 			}
7149 		}
7150 
7151 		if (!IS_QLAFX00(ha))
7152 			qla2x00_do_dpc_all_vps(base_vha);
7153 
7154 		if (test_and_clear_bit(N2N_LINK_RESET,
7155 			&base_vha->dpc_flags)) {
7156 			qla2x00_lip_reset(base_vha);
7157 		}
7158 
7159 		ha->dpc_active = 0;
7160 end_loop:
7161 		set_current_state(TASK_INTERRUPTIBLE);
7162 	} /* End of while(1) */
7163 	__set_current_state(TASK_RUNNING);
7164 
7165 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
7166 	    "DPC handler exiting.\n");
7167 
7168 	/*
7169 	 * Make sure that nobody tries to wake us up again.
7170 	 */
7171 	ha->dpc_active = 0;
7172 
7173 	/* Cleanup any residual CTX SRBs. */
7174 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
7175 
7176 	return 0;
7177 }
7178 
7179 void
7180 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
7181 {
7182 	struct qla_hw_data *ha = vha->hw;
7183 	struct task_struct *t = ha->dpc_thread;
7184 
7185 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
7186 		wake_up_process(t);
7187 }
7188 
7189 /*
7190 *  qla2x00_rst_aen
7191 *      Processes asynchronous reset.
7192 *
7193 * Input:
7194 *      ha  = adapter block pointer.
7195 */
7196 static void
7197 qla2x00_rst_aen(scsi_qla_host_t *vha)
7198 {
7199 	if (vha->flags.online && !vha->flags.reset_active &&
7200 	    !atomic_read(&vha->loop_down_timer) &&
7201 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
7202 		do {
7203 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7204 
7205 			/*
7206 			 * Issue marker command only when we are going to start
7207 			 * the I/O.
7208 			 */
7209 			vha->marker_needed = 1;
7210 		} while (!atomic_read(&vha->loop_down_timer) &&
7211 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
7212 	}
7213 }
7214 
7215 static bool qla_do_heartbeat(struct scsi_qla_host *vha)
7216 {
7217 	struct qla_hw_data *ha = vha->hw;
7218 	u32 cmpl_cnt;
7219 	u16 i;
7220 	bool do_heartbeat = false;
7221 
7222 	/*
7223 	 * Allow do_heartbeat only if we don’t have any active interrupts,
7224 	 * but there are still IOs outstanding with firmware.
7225 	 */
7226 	cmpl_cnt = ha->base_qpair->cmd_completion_cnt;
7227 	if (cmpl_cnt == ha->base_qpair->prev_completion_cnt &&
7228 	    cmpl_cnt != ha->base_qpair->cmd_cnt) {
7229 		do_heartbeat = true;
7230 		goto skip;
7231 	}
7232 	ha->base_qpair->prev_completion_cnt = cmpl_cnt;
7233 
7234 	for (i = 0; i < ha->max_qpairs; i++) {
7235 		if (ha->queue_pair_map[i]) {
7236 			cmpl_cnt = ha->queue_pair_map[i]->cmd_completion_cnt;
7237 			if (cmpl_cnt == ha->queue_pair_map[i]->prev_completion_cnt &&
7238 			    cmpl_cnt != ha->queue_pair_map[i]->cmd_cnt) {
7239 				do_heartbeat = true;
7240 				break;
7241 			}
7242 			ha->queue_pair_map[i]->prev_completion_cnt = cmpl_cnt;
7243 		}
7244 	}
7245 
7246 skip:
7247 	return do_heartbeat;
7248 }
7249 
7250 static void qla_heart_beat(struct scsi_qla_host *vha, u16 dpc_started)
7251 {
7252 	struct qla_hw_data *ha = vha->hw;
7253 
7254 	if (vha->vp_idx)
7255 		return;
7256 
7257 	if (vha->hw->flags.eeh_busy || qla2x00_chip_is_down(vha))
7258 		return;
7259 
7260 	/*
7261 	 * dpc thread cannot run if heartbeat is running at the same time.
7262 	 * We also do not want to starve heartbeat task. Therefore, do
7263 	 * heartbeat task at least once every 5 seconds.
7264 	 */
7265 	if (dpc_started &&
7266 	    time_before(jiffies, ha->last_heartbeat_run_jiffies + 5 * HZ))
7267 		return;
7268 
7269 	if (qla_do_heartbeat(vha)) {
7270 		ha->last_heartbeat_run_jiffies = jiffies;
7271 		queue_work(ha->wq, &ha->heartbeat_work);
7272 	}
7273 }
7274 
7275 static void qla_wind_down_chip(scsi_qla_host_t *vha)
7276 {
7277 	struct qla_hw_data *ha = vha->hw;
7278 
7279 	if (!ha->flags.eeh_busy)
7280 		return;
7281 	if (ha->pci_error_state)
7282 		/* system is trying to recover */
7283 		return;
7284 
7285 	/*
7286 	 * Current system is not handling PCIE error.  At this point, this is
7287 	 * best effort to wind down the adapter.
7288 	 */
7289 	if (time_after_eq(jiffies, ha->eeh_jif + ql2xdelay_before_pci_error_handling * HZ) &&
7290 	    !ha->flags.eeh_flush) {
7291 		ql_log(ql_log_info, vha, 0x9009,
7292 		    "PCI Error detected, attempting to reset hardware.\n");
7293 
7294 		ha->isp_ops->reset_chip(vha);
7295 		ha->isp_ops->disable_intrs(ha);
7296 
7297 		ha->flags.eeh_flush = EEH_FLUSH_RDY;
7298 		ha->eeh_jif = jiffies;
7299 
7300 	} else if (ha->flags.eeh_flush == EEH_FLUSH_RDY &&
7301 	    time_after_eq(jiffies, ha->eeh_jif +  5 * HZ)) {
7302 		pci_clear_master(ha->pdev);
7303 
7304 		/* flush all command */
7305 		qla2x00_abort_isp_cleanup(vha);
7306 		ha->flags.eeh_flush = EEH_FLUSH_DONE;
7307 
7308 		ql_log(ql_log_info, vha, 0x900a,
7309 		    "PCI Error handling complete, all IOs aborted.\n");
7310 	}
7311 }
7312 
7313 /**************************************************************************
7314 *   qla2x00_timer
7315 *
7316 * Description:
7317 *   One second timer
7318 *
7319 * Context: Interrupt
7320 ***************************************************************************/
7321 void
7322 qla2x00_timer(struct timer_list *t)
7323 {
7324 	scsi_qla_host_t *vha = from_timer(vha, t, timer);
7325 	unsigned long	cpu_flags = 0;
7326 	int		start_dpc = 0;
7327 	int		index;
7328 	srb_t		*sp;
7329 	uint16_t        w;
7330 	struct qla_hw_data *ha = vha->hw;
7331 	struct req_que *req;
7332 	unsigned long flags;
7333 	fc_port_t *fcport = NULL;
7334 
7335 	if (ha->flags.eeh_busy) {
7336 		qla_wind_down_chip(vha);
7337 
7338 		ql_dbg(ql_dbg_timer, vha, 0x6000,
7339 		    "EEH = %d, restarting timer.\n",
7340 		    ha->flags.eeh_busy);
7341 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
7342 		return;
7343 	}
7344 
7345 	/*
7346 	 * Hardware read to raise pending EEH errors during mailbox waits. If
7347 	 * the read returns -1 then disable the board.
7348 	 */
7349 	if (!pci_channel_offline(ha->pdev)) {
7350 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
7351 		qla2x00_check_reg16_for_disconnect(vha, w);
7352 	}
7353 
7354 	/* Make sure qla82xx_watchdog is run only for physical port */
7355 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
7356 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
7357 			start_dpc++;
7358 		if (IS_QLA82XX(ha))
7359 			qla82xx_watchdog(vha);
7360 		else if (IS_QLA8044(ha))
7361 			qla8044_watchdog(vha);
7362 	}
7363 
7364 	if (!vha->vp_idx && IS_QLAFX00(ha))
7365 		qlafx00_timer_routine(vha);
7366 
7367 	if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7368 		vha->link_down_time++;
7369 
7370 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
7371 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
7372 		if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7373 			fcport->tgt_link_down_time++;
7374 	}
7375 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
7376 
7377 	/* Loop down handler. */
7378 	if (atomic_read(&vha->loop_down_timer) > 0 &&
7379 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
7380 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
7381 		&& vha->flags.online) {
7382 
7383 		if (atomic_read(&vha->loop_down_timer) ==
7384 		    vha->loop_down_abort_time) {
7385 
7386 			ql_log(ql_log_info, vha, 0x6008,
7387 			    "Loop down - aborting the queues before time expires.\n");
7388 
7389 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
7390 				atomic_set(&vha->loop_state, LOOP_DEAD);
7391 
7392 			/*
7393 			 * Schedule an ISP abort to return any FCP2-device
7394 			 * commands.
7395 			 */
7396 			/* NPIV - scan physical port only */
7397 			if (!vha->vp_idx) {
7398 				spin_lock_irqsave(&ha->hardware_lock,
7399 				    cpu_flags);
7400 				req = ha->req_q_map[0];
7401 				for (index = 1;
7402 				    index < req->num_outstanding_cmds;
7403 				    index++) {
7404 					fc_port_t *sfcp;
7405 
7406 					sp = req->outstanding_cmds[index];
7407 					if (!sp)
7408 						continue;
7409 					if (sp->cmd_type != TYPE_SRB)
7410 						continue;
7411 					if (sp->type != SRB_SCSI_CMD)
7412 						continue;
7413 					sfcp = sp->fcport;
7414 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
7415 						continue;
7416 
7417 					if (IS_QLA82XX(ha))
7418 						set_bit(FCOE_CTX_RESET_NEEDED,
7419 							&vha->dpc_flags);
7420 					else
7421 						set_bit(ISP_ABORT_NEEDED,
7422 							&vha->dpc_flags);
7423 					break;
7424 				}
7425 				spin_unlock_irqrestore(&ha->hardware_lock,
7426 								cpu_flags);
7427 			}
7428 			start_dpc++;
7429 		}
7430 
7431 		/* if the loop has been down for 4 minutes, reinit adapter */
7432 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
7433 			if (!(vha->device_flags & DFLG_NO_CABLE)) {
7434 				ql_log(ql_log_warn, vha, 0x6009,
7435 				    "Loop down - aborting ISP.\n");
7436 
7437 				if (IS_QLA82XX(ha))
7438 					set_bit(FCOE_CTX_RESET_NEEDED,
7439 						&vha->dpc_flags);
7440 				else
7441 					set_bit(ISP_ABORT_NEEDED,
7442 						&vha->dpc_flags);
7443 			}
7444 		}
7445 		ql_dbg(ql_dbg_timer, vha, 0x600a,
7446 		    "Loop down - seconds remaining %d.\n",
7447 		    atomic_read(&vha->loop_down_timer));
7448 	}
7449 	/* Check if beacon LED needs to be blinked for physical host only */
7450 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
7451 		/* There is no beacon_blink function for ISP82xx */
7452 		if (!IS_P3P_TYPE(ha)) {
7453 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
7454 			start_dpc++;
7455 		}
7456 	}
7457 
7458 	/* check if edif running */
7459 	if (vha->hw->flags.edif_enabled)
7460 		qla_edif_timer(vha);
7461 
7462 	/* Process any deferred work. */
7463 	if (!list_empty(&vha->work_list)) {
7464 		unsigned long flags;
7465 		bool q = false;
7466 
7467 		spin_lock_irqsave(&vha->work_lock, flags);
7468 		if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
7469 			q = true;
7470 		spin_unlock_irqrestore(&vha->work_lock, flags);
7471 		if (q)
7472 			queue_work(vha->hw->wq, &vha->iocb_work);
7473 	}
7474 
7475 	/*
7476 	 * FC-NVME
7477 	 * see if the active AEN count has changed from what was last reported.
7478 	 */
7479 	index = atomic_read(&ha->nvme_active_aen_cnt);
7480 	if (!vha->vp_idx &&
7481 	    (index != ha->nvme_last_rptd_aen) &&
7482 	    ha->zio_mode == QLA_ZIO_MODE_6 &&
7483 	    !ha->flags.host_shutting_down) {
7484 		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
7485 		ql_log(ql_log_info, vha, 0x3002,
7486 		    "nvme: Sched: Set ZIO exchange threshold to %d.\n",
7487 		    ha->nvme_last_rptd_aen);
7488 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7489 		start_dpc++;
7490 	}
7491 
7492 	if (!vha->vp_idx &&
7493 	    atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
7494 	    IS_ZIO_THRESHOLD_CAPABLE(ha)) {
7495 		ql_log(ql_log_info, vha, 0x3002,
7496 		    "Sched: Set ZIO exchange threshold to %d.\n",
7497 		    ha->last_zio_threshold);
7498 		ha->last_zio_threshold = atomic_read(&ha->zio_threshold);
7499 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7500 		start_dpc++;
7501 	}
7502 
7503 	/* borrowing w to signify dpc will run */
7504 	w = 0;
7505 	/* Schedule the DPC routine if needed */
7506 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
7507 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
7508 	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
7509 	    start_dpc ||
7510 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
7511 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
7512 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
7513 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
7514 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
7515 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
7516 	    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags))) {
7517 		ql_dbg(ql_dbg_timer, vha, 0x600b,
7518 		    "isp_abort_needed=%d loop_resync_needed=%d "
7519 		    "fcport_update_needed=%d start_dpc=%d "
7520 		    "reset_marker_needed=%d",
7521 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
7522 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
7523 		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
7524 		    start_dpc,
7525 		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
7526 		ql_dbg(ql_dbg_timer, vha, 0x600c,
7527 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
7528 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
7529 		    "relogin_needed=%d, Process_purex_iocb=%d.\n",
7530 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
7531 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
7532 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
7533 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
7534 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
7535 		    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags));
7536 		qla2xxx_wake_dpc(vha);
7537 		w = 1;
7538 	}
7539 
7540 	qla_heart_beat(vha, w);
7541 
7542 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
7543 }
7544 
7545 /* Firmware interface routines. */
7546 
7547 #define FW_ISP21XX	0
7548 #define FW_ISP22XX	1
7549 #define FW_ISP2300	2
7550 #define FW_ISP2322	3
7551 #define FW_ISP24XX	4
7552 #define FW_ISP25XX	5
7553 #define FW_ISP81XX	6
7554 #define FW_ISP82XX	7
7555 #define FW_ISP2031	8
7556 #define FW_ISP8031	9
7557 #define FW_ISP27XX	10
7558 #define FW_ISP28XX	11
7559 
7560 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
7561 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
7562 #define FW_FILE_ISP2300	"ql2300_fw.bin"
7563 #define FW_FILE_ISP2322	"ql2322_fw.bin"
7564 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
7565 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
7566 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
7567 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
7568 #define FW_FILE_ISP2031	"ql2600_fw.bin"
7569 #define FW_FILE_ISP8031	"ql8300_fw.bin"
7570 #define FW_FILE_ISP27XX	"ql2700_fw.bin"
7571 #define FW_FILE_ISP28XX	"ql2800_fw.bin"
7572 
7573 
7574 static DEFINE_MUTEX(qla_fw_lock);
7575 
7576 static struct fw_blob qla_fw_blobs[] = {
7577 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
7578 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
7579 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
7580 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
7581 	{ .name = FW_FILE_ISP24XX, },
7582 	{ .name = FW_FILE_ISP25XX, },
7583 	{ .name = FW_FILE_ISP81XX, },
7584 	{ .name = FW_FILE_ISP82XX, },
7585 	{ .name = FW_FILE_ISP2031, },
7586 	{ .name = FW_FILE_ISP8031, },
7587 	{ .name = FW_FILE_ISP27XX, },
7588 	{ .name = FW_FILE_ISP28XX, },
7589 	{ .name = NULL, },
7590 };
7591 
7592 struct fw_blob *
7593 qla2x00_request_firmware(scsi_qla_host_t *vha)
7594 {
7595 	struct qla_hw_data *ha = vha->hw;
7596 	struct fw_blob *blob;
7597 
7598 	if (IS_QLA2100(ha)) {
7599 		blob = &qla_fw_blobs[FW_ISP21XX];
7600 	} else if (IS_QLA2200(ha)) {
7601 		blob = &qla_fw_blobs[FW_ISP22XX];
7602 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
7603 		blob = &qla_fw_blobs[FW_ISP2300];
7604 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
7605 		blob = &qla_fw_blobs[FW_ISP2322];
7606 	} else if (IS_QLA24XX_TYPE(ha)) {
7607 		blob = &qla_fw_blobs[FW_ISP24XX];
7608 	} else if (IS_QLA25XX(ha)) {
7609 		blob = &qla_fw_blobs[FW_ISP25XX];
7610 	} else if (IS_QLA81XX(ha)) {
7611 		blob = &qla_fw_blobs[FW_ISP81XX];
7612 	} else if (IS_QLA82XX(ha)) {
7613 		blob = &qla_fw_blobs[FW_ISP82XX];
7614 	} else if (IS_QLA2031(ha)) {
7615 		blob = &qla_fw_blobs[FW_ISP2031];
7616 	} else if (IS_QLA8031(ha)) {
7617 		blob = &qla_fw_blobs[FW_ISP8031];
7618 	} else if (IS_QLA27XX(ha)) {
7619 		blob = &qla_fw_blobs[FW_ISP27XX];
7620 	} else if (IS_QLA28XX(ha)) {
7621 		blob = &qla_fw_blobs[FW_ISP28XX];
7622 	} else {
7623 		return NULL;
7624 	}
7625 
7626 	if (!blob->name)
7627 		return NULL;
7628 
7629 	mutex_lock(&qla_fw_lock);
7630 	if (blob->fw)
7631 		goto out;
7632 
7633 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
7634 		ql_log(ql_log_warn, vha, 0x0063,
7635 		    "Failed to load firmware image (%s).\n", blob->name);
7636 		blob->fw = NULL;
7637 		blob = NULL;
7638 	}
7639 
7640 out:
7641 	mutex_unlock(&qla_fw_lock);
7642 	return blob;
7643 }
7644 
7645 static void
7646 qla2x00_release_firmware(void)
7647 {
7648 	struct fw_blob *blob;
7649 
7650 	mutex_lock(&qla_fw_lock);
7651 	for (blob = qla_fw_blobs; blob->name; blob++)
7652 		release_firmware(blob->fw);
7653 	mutex_unlock(&qla_fw_lock);
7654 }
7655 
7656 static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
7657 {
7658 	struct qla_hw_data *ha = vha->hw;
7659 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
7660 	struct qla_qpair *qpair = NULL;
7661 	struct scsi_qla_host *vp, *tvp;
7662 	fc_port_t *fcport;
7663 	int i;
7664 	unsigned long flags;
7665 
7666 	ql_dbg(ql_dbg_aer, vha, 0x9000,
7667 	       "%s\n", __func__);
7668 	ha->chip_reset++;
7669 
7670 	ha->base_qpair->chip_reset = ha->chip_reset;
7671 	for (i = 0; i < ha->max_qpairs; i++) {
7672 		if (ha->queue_pair_map[i])
7673 			ha->queue_pair_map[i]->chip_reset =
7674 			    ha->base_qpair->chip_reset;
7675 	}
7676 
7677 	/*
7678 	 * purge mailbox might take a while. Slot Reset/chip reset
7679 	 * will take care of the purge
7680 	 */
7681 
7682 	mutex_lock(&ha->mq_lock);
7683 	ha->base_qpair->online = 0;
7684 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7685 		qpair->online = 0;
7686 	wmb();
7687 	mutex_unlock(&ha->mq_lock);
7688 
7689 	qla2x00_mark_all_devices_lost(vha);
7690 
7691 	spin_lock_irqsave(&ha->vport_slock, flags);
7692 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7693 		atomic_inc(&vp->vref_count);
7694 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7695 		qla2x00_mark_all_devices_lost(vp);
7696 		spin_lock_irqsave(&ha->vport_slock, flags);
7697 		atomic_dec(&vp->vref_count);
7698 	}
7699 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7700 
7701 	/* Clear all async request states across all VPs. */
7702 	list_for_each_entry(fcport, &vha->vp_fcports, list)
7703 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7704 
7705 	spin_lock_irqsave(&ha->vport_slock, flags);
7706 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7707 		atomic_inc(&vp->vref_count);
7708 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7709 		list_for_each_entry(fcport, &vp->vp_fcports, list)
7710 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7711 		spin_lock_irqsave(&ha->vport_slock, flags);
7712 		atomic_dec(&vp->vref_count);
7713 	}
7714 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7715 }
7716 
7717 
7718 static pci_ers_result_t
7719 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7720 {
7721 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
7722 	struct qla_hw_data *ha = vha->hw;
7723 	pci_ers_result_t ret = PCI_ERS_RESULT_NEED_RESET;
7724 
7725 	ql_log(ql_log_warn, vha, 0x9000,
7726 	       "PCI error detected, state %x.\n", state);
7727 	ha->pci_error_state = QLA_PCI_ERR_DETECTED;
7728 
7729 	if (!atomic_read(&pdev->enable_cnt)) {
7730 		ql_log(ql_log_info, vha, 0xffff,
7731 			"PCI device is disabled,state %x\n", state);
7732 		ret = PCI_ERS_RESULT_NEED_RESET;
7733 		goto out;
7734 	}
7735 
7736 	switch (state) {
7737 	case pci_channel_io_normal:
7738 		qla_pci_set_eeh_busy(vha);
7739 		if (ql2xmqsupport || ql2xnvmeenable) {
7740 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7741 			qla2xxx_wake_dpc(vha);
7742 		}
7743 		ret = PCI_ERS_RESULT_CAN_RECOVER;
7744 		break;
7745 	case pci_channel_io_frozen:
7746 		qla_pci_set_eeh_busy(vha);
7747 		ret = PCI_ERS_RESULT_NEED_RESET;
7748 		break;
7749 	case pci_channel_io_perm_failure:
7750 		ha->flags.pci_channel_io_perm_failure = 1;
7751 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
7752 		if (ql2xmqsupport || ql2xnvmeenable) {
7753 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7754 			qla2xxx_wake_dpc(vha);
7755 		}
7756 		ret = PCI_ERS_RESULT_DISCONNECT;
7757 	}
7758 out:
7759 	ql_dbg(ql_dbg_aer, vha, 0x600d,
7760 	       "PCI error detected returning [%x].\n", ret);
7761 	return ret;
7762 }
7763 
7764 static pci_ers_result_t
7765 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
7766 {
7767 	int risc_paused = 0;
7768 	uint32_t stat;
7769 	unsigned long flags;
7770 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7771 	struct qla_hw_data *ha = base_vha->hw;
7772 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7773 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
7774 
7775 	ql_log(ql_log_warn, base_vha, 0x9000,
7776 	       "mmio enabled\n");
7777 
7778 	ha->pci_error_state = QLA_PCI_MMIO_ENABLED;
7779 
7780 	if (IS_QLA82XX(ha))
7781 		return PCI_ERS_RESULT_RECOVERED;
7782 
7783 	if (qla2x00_isp_reg_stat(ha)) {
7784 		ql_log(ql_log_info, base_vha, 0x803f,
7785 		    "During mmio enabled, PCI/Register disconnect still detected.\n");
7786 		goto out;
7787 	}
7788 
7789 	spin_lock_irqsave(&ha->hardware_lock, flags);
7790 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
7791 		stat = rd_reg_word(&reg->hccr);
7792 		if (stat & HCCR_RISC_PAUSE)
7793 			risc_paused = 1;
7794 	} else if (IS_QLA23XX(ha)) {
7795 		stat = rd_reg_dword(&reg->u.isp2300.host_status);
7796 		if (stat & HSR_RISC_PAUSED)
7797 			risc_paused = 1;
7798 	} else if (IS_FWI2_CAPABLE(ha)) {
7799 		stat = rd_reg_dword(&reg24->host_status);
7800 		if (stat & HSRX_RISC_PAUSED)
7801 			risc_paused = 1;
7802 	}
7803 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7804 
7805 	if (risc_paused) {
7806 		ql_log(ql_log_info, base_vha, 0x9003,
7807 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
7808 		qla2xxx_dump_fw(base_vha);
7809 	}
7810 out:
7811 	/* set PCI_ERS_RESULT_NEED_RESET to trigger call to qla2xxx_pci_slot_reset */
7812 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7813 	       "mmio enabled returning.\n");
7814 	return PCI_ERS_RESULT_NEED_RESET;
7815 }
7816 
7817 static pci_ers_result_t
7818 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
7819 {
7820 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
7821 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7822 	struct qla_hw_data *ha = base_vha->hw;
7823 	int rc;
7824 	struct qla_qpair *qpair = NULL;
7825 
7826 	ql_log(ql_log_warn, base_vha, 0x9004,
7827 	       "Slot Reset.\n");
7828 
7829 	ha->pci_error_state = QLA_PCI_SLOT_RESET;
7830 	/* Workaround: qla2xxx driver which access hardware earlier
7831 	 * needs error state to be pci_channel_io_online.
7832 	 * Otherwise mailbox command timesout.
7833 	 */
7834 	pdev->error_state = pci_channel_io_normal;
7835 
7836 	pci_restore_state(pdev);
7837 
7838 	/* pci_restore_state() clears the saved_state flag of the device
7839 	 * save restored state which resets saved_state flag
7840 	 */
7841 	pci_save_state(pdev);
7842 
7843 	if (ha->mem_only)
7844 		rc = pci_enable_device_mem(pdev);
7845 	else
7846 		rc = pci_enable_device(pdev);
7847 
7848 	if (rc) {
7849 		ql_log(ql_log_warn, base_vha, 0x9005,
7850 		    "Can't re-enable PCI device after reset.\n");
7851 		goto exit_slot_reset;
7852 	}
7853 
7854 
7855 	if (ha->isp_ops->pci_config(base_vha))
7856 		goto exit_slot_reset;
7857 
7858 	mutex_lock(&ha->mq_lock);
7859 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7860 		qpair->online = 1;
7861 	mutex_unlock(&ha->mq_lock);
7862 
7863 	ha->flags.eeh_busy = 0;
7864 	base_vha->flags.online = 1;
7865 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7866 	ha->isp_ops->abort_isp(base_vha);
7867 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7868 
7869 	if (qla2x00_isp_reg_stat(ha)) {
7870 		ha->flags.eeh_busy = 1;
7871 		qla_pci_error_cleanup(base_vha);
7872 		ql_log(ql_log_warn, base_vha, 0x9005,
7873 		       "Device unable to recover from PCI error.\n");
7874 	} else {
7875 		ret =  PCI_ERS_RESULT_RECOVERED;
7876 	}
7877 
7878 exit_slot_reset:
7879 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
7880 	    "Slot Reset returning %x.\n", ret);
7881 
7882 	return ret;
7883 }
7884 
7885 static void
7886 qla2xxx_pci_resume(struct pci_dev *pdev)
7887 {
7888 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7889 	struct qla_hw_data *ha = base_vha->hw;
7890 	int ret;
7891 
7892 	ql_log(ql_log_warn, base_vha, 0x900f,
7893 	       "Pci Resume.\n");
7894 
7895 
7896 	ret = qla2x00_wait_for_hba_online(base_vha);
7897 	if (ret != QLA_SUCCESS) {
7898 		ql_log(ql_log_fatal, base_vha, 0x9002,
7899 		    "The device failed to resume I/O from slot/link_reset.\n");
7900 	}
7901 	ha->pci_error_state = QLA_PCI_RESUME;
7902 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7903 	       "Pci Resume returning.\n");
7904 }
7905 
7906 void qla_pci_set_eeh_busy(struct scsi_qla_host *vha)
7907 {
7908 	struct qla_hw_data *ha = vha->hw;
7909 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7910 	bool do_cleanup = false;
7911 	unsigned long flags;
7912 
7913 	if (ha->flags.eeh_busy)
7914 		return;
7915 
7916 	spin_lock_irqsave(&base_vha->work_lock, flags);
7917 	if (!ha->flags.eeh_busy) {
7918 		ha->eeh_jif = jiffies;
7919 		ha->flags.eeh_flush = 0;
7920 
7921 		ha->flags.eeh_busy = 1;
7922 		do_cleanup = true;
7923 	}
7924 	spin_unlock_irqrestore(&base_vha->work_lock, flags);
7925 
7926 	if (do_cleanup)
7927 		qla_pci_error_cleanup(base_vha);
7928 }
7929 
7930 /*
7931  * this routine will schedule a task to pause IO from interrupt context
7932  * if caller sees a PCIE error event (register read = 0xf's)
7933  */
7934 void qla_schedule_eeh_work(struct scsi_qla_host *vha)
7935 {
7936 	struct qla_hw_data *ha = vha->hw;
7937 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7938 
7939 	if (ha->flags.eeh_busy)
7940 		return;
7941 
7942 	set_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags);
7943 	qla2xxx_wake_dpc(base_vha);
7944 }
7945 
7946 static void
7947 qla_pci_reset_prepare(struct pci_dev *pdev)
7948 {
7949 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7950 	struct qla_hw_data *ha = base_vha->hw;
7951 	struct qla_qpair *qpair;
7952 
7953 	ql_log(ql_log_warn, base_vha, 0xffff,
7954 	    "%s.\n", __func__);
7955 
7956 	/*
7957 	 * PCI FLR/function reset is about to reset the
7958 	 * slot. Stop the chip to stop all DMA access.
7959 	 * It is assumed that pci_reset_done will be called
7960 	 * after FLR to resume Chip operation.
7961 	 */
7962 	ha->flags.eeh_busy = 1;
7963 	mutex_lock(&ha->mq_lock);
7964 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7965 		qpair->online = 0;
7966 	mutex_unlock(&ha->mq_lock);
7967 
7968 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7969 	qla2x00_abort_isp_cleanup(base_vha);
7970 	qla2x00_abort_all_cmds(base_vha, DID_RESET << 16);
7971 }
7972 
7973 static void
7974 qla_pci_reset_done(struct pci_dev *pdev)
7975 {
7976 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7977 	struct qla_hw_data *ha = base_vha->hw;
7978 	struct qla_qpair *qpair;
7979 
7980 	ql_log(ql_log_warn, base_vha, 0xffff,
7981 	    "%s.\n", __func__);
7982 
7983 	/*
7984 	 * FLR just completed by PCI layer. Resume adapter
7985 	 */
7986 	ha->flags.eeh_busy = 0;
7987 	mutex_lock(&ha->mq_lock);
7988 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7989 		qpair->online = 1;
7990 	mutex_unlock(&ha->mq_lock);
7991 
7992 	base_vha->flags.online = 1;
7993 	ha->isp_ops->abort_isp(base_vha);
7994 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7995 }
7996 
7997 static int qla2xxx_map_queues(struct Scsi_Host *shost)
7998 {
7999 	int rc;
8000 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
8001 	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
8002 
8003 	if (USER_CTRL_IRQ(vha->hw) || !vha->hw->mqiobase)
8004 		rc = blk_mq_map_queues(qmap);
8005 	else
8006 		rc = blk_mq_pci_map_queues(qmap, vha->hw->pdev, vha->irq_offset);
8007 	return rc;
8008 }
8009 
8010 struct scsi_host_template qla2xxx_driver_template = {
8011 	.module			= THIS_MODULE,
8012 	.name			= QLA2XXX_DRIVER_NAME,
8013 	.queuecommand		= qla2xxx_queuecommand,
8014 
8015 	.eh_timed_out		= fc_eh_timed_out,
8016 	.eh_abort_handler	= qla2xxx_eh_abort,
8017 	.eh_should_retry_cmd	= fc_eh_should_retry_cmd,
8018 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
8019 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
8020 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
8021 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
8022 
8023 	.slave_configure	= qla2xxx_slave_configure,
8024 
8025 	.slave_alloc		= qla2xxx_slave_alloc,
8026 	.slave_destroy		= qla2xxx_slave_destroy,
8027 	.scan_finished		= qla2xxx_scan_finished,
8028 	.scan_start		= qla2xxx_scan_start,
8029 	.change_queue_depth	= scsi_change_queue_depth,
8030 	.map_queues             = qla2xxx_map_queues,
8031 	.this_id		= -1,
8032 	.cmd_per_lun		= 3,
8033 	.sg_tablesize		= SG_ALL,
8034 
8035 	.max_sectors		= 0xFFFF,
8036 	.shost_groups		= qla2x00_host_groups,
8037 
8038 	.supported_mode		= MODE_INITIATOR,
8039 	.track_queue_depth	= 1,
8040 	.cmd_size		= sizeof(srb_t),
8041 };
8042 
8043 static const struct pci_error_handlers qla2xxx_err_handler = {
8044 	.error_detected = qla2xxx_pci_error_detected,
8045 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
8046 	.slot_reset = qla2xxx_pci_slot_reset,
8047 	.resume = qla2xxx_pci_resume,
8048 	.reset_prepare = qla_pci_reset_prepare,
8049 	.reset_done = qla_pci_reset_done,
8050 };
8051 
8052 static struct pci_device_id qla2xxx_pci_tbl[] = {
8053 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
8054 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
8055 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
8056 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
8057 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
8058 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
8059 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
8060 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
8061 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
8062 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
8063 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
8064 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
8065 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
8066 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
8067 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
8068 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
8069 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
8070 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
8071 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
8072 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
8073 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
8074 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
8075 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2061) },
8076 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2081) },
8077 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2281) },
8078 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2089) },
8079 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2289) },
8080 	{ 0 },
8081 };
8082 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
8083 
8084 static struct pci_driver qla2xxx_pci_driver = {
8085 	.name		= QLA2XXX_DRIVER_NAME,
8086 	.driver		= {
8087 		.owner		= THIS_MODULE,
8088 	},
8089 	.id_table	= qla2xxx_pci_tbl,
8090 	.probe		= qla2x00_probe_one,
8091 	.remove		= qla2x00_remove_one,
8092 	.shutdown	= qla2x00_shutdown,
8093 	.err_handler	= &qla2xxx_err_handler,
8094 };
8095 
8096 static const struct file_operations apidev_fops = {
8097 	.owner = THIS_MODULE,
8098 	.llseek = noop_llseek,
8099 };
8100 
8101 /**
8102  * qla2x00_module_init - Module initialization.
8103  **/
8104 static int __init
8105 qla2x00_module_init(void)
8106 {
8107 	int ret = 0;
8108 
8109 	BUILD_BUG_ON(sizeof(cmd_a64_entry_t) != 64);
8110 	BUILD_BUG_ON(sizeof(cmd_entry_t) != 64);
8111 	BUILD_BUG_ON(sizeof(cont_a64_entry_t) != 64);
8112 	BUILD_BUG_ON(sizeof(cont_entry_t) != 64);
8113 	BUILD_BUG_ON(sizeof(init_cb_t) != 96);
8114 	BUILD_BUG_ON(sizeof(mrk_entry_t) != 64);
8115 	BUILD_BUG_ON(sizeof(ms_iocb_entry_t) != 64);
8116 	BUILD_BUG_ON(sizeof(request_t) != 64);
8117 	BUILD_BUG_ON(sizeof(struct abort_entry_24xx) != 64);
8118 	BUILD_BUG_ON(sizeof(struct abort_iocb_entry_fx00) != 64);
8119 	BUILD_BUG_ON(sizeof(struct abts_entry_24xx) != 64);
8120 	BUILD_BUG_ON(sizeof(struct access_chip_84xx) != 64);
8121 	BUILD_BUG_ON(sizeof(struct access_chip_rsp_84xx) != 64);
8122 	BUILD_BUG_ON(sizeof(struct cmd_bidir) != 64);
8123 	BUILD_BUG_ON(sizeof(struct cmd_nvme) != 64);
8124 	BUILD_BUG_ON(sizeof(struct cmd_type_6) != 64);
8125 	BUILD_BUG_ON(sizeof(struct cmd_type_7) != 64);
8126 	BUILD_BUG_ON(sizeof(struct cmd_type_7_fx00) != 64);
8127 	BUILD_BUG_ON(sizeof(struct cmd_type_crc_2) != 64);
8128 	BUILD_BUG_ON(sizeof(struct ct_entry_24xx) != 64);
8129 	BUILD_BUG_ON(sizeof(struct ct_fdmi1_hba_attributes) != 2604);
8130 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_hba_attributes) != 4424);
8131 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_port_attributes) != 4164);
8132 	BUILD_BUG_ON(sizeof(struct ct_fdmi_hba_attr) != 260);
8133 	BUILD_BUG_ON(sizeof(struct ct_fdmi_port_attr) != 260);
8134 	BUILD_BUG_ON(sizeof(struct ct_rsp_hdr) != 16);
8135 	BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
8136 	BUILD_BUG_ON(sizeof(struct device_reg_24xx) != 256);
8137 	BUILD_BUG_ON(sizeof(struct device_reg_25xxmq) != 24);
8138 	BUILD_BUG_ON(sizeof(struct device_reg_2xxx) != 256);
8139 	BUILD_BUG_ON(sizeof(struct device_reg_82xx) != 1288);
8140 	BUILD_BUG_ON(sizeof(struct device_reg_fx00) != 216);
8141 	BUILD_BUG_ON(sizeof(struct els_entry_24xx) != 64);
8142 	BUILD_BUG_ON(sizeof(struct els_sts_entry_24xx) != 64);
8143 	BUILD_BUG_ON(sizeof(struct fxdisc_entry_fx00) != 64);
8144 	BUILD_BUG_ON(sizeof(struct imm_ntfy_from_isp) != 64);
8145 	BUILD_BUG_ON(sizeof(struct init_cb_24xx) != 128);
8146 	BUILD_BUG_ON(sizeof(struct init_cb_81xx) != 128);
8147 	BUILD_BUG_ON(sizeof(struct logio_entry_24xx) != 64);
8148 	BUILD_BUG_ON(sizeof(struct mbx_entry) != 64);
8149 	BUILD_BUG_ON(sizeof(struct mid_init_cb_24xx) != 5252);
8150 	BUILD_BUG_ON(sizeof(struct mrk_entry_24xx) != 64);
8151 	BUILD_BUG_ON(sizeof(struct nvram_24xx) != 512);
8152 	BUILD_BUG_ON(sizeof(struct nvram_81xx) != 512);
8153 	BUILD_BUG_ON(sizeof(struct pt_ls4_request) != 64);
8154 	BUILD_BUG_ON(sizeof(struct pt_ls4_rx_unsol) != 64);
8155 	BUILD_BUG_ON(sizeof(struct purex_entry_24xx) != 64);
8156 	BUILD_BUG_ON(sizeof(struct qla2100_fw_dump) != 123634);
8157 	BUILD_BUG_ON(sizeof(struct qla2300_fw_dump) != 136100);
8158 	BUILD_BUG_ON(sizeof(struct qla24xx_fw_dump) != 37976);
8159 	BUILD_BUG_ON(sizeof(struct qla25xx_fw_dump) != 39228);
8160 	BUILD_BUG_ON(sizeof(struct qla2xxx_fce_chain) != 52);
8161 	BUILD_BUG_ON(sizeof(struct qla2xxx_fw_dump) != 136172);
8162 	BUILD_BUG_ON(sizeof(struct qla2xxx_mq_chain) != 524);
8163 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_chain) != 8);
8164 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_header) != 12);
8165 	BUILD_BUG_ON(sizeof(struct qla2xxx_offld_chain) != 24);
8166 	BUILD_BUG_ON(sizeof(struct qla81xx_fw_dump) != 39420);
8167 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_data_desc) != 28);
8168 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_table_desc) != 32);
8169 	BUILD_BUG_ON(sizeof(struct qla83xx_fw_dump) != 51196);
8170 	BUILD_BUG_ON(sizeof(struct qla_fcp_prio_cfg) != FCP_PRIO_CFG_SIZE);
8171 	BUILD_BUG_ON(sizeof(struct qla_fdt_layout) != 128);
8172 	BUILD_BUG_ON(sizeof(struct qla_flt_header) != 8);
8173 	BUILD_BUG_ON(sizeof(struct qla_flt_region) != 16);
8174 	BUILD_BUG_ON(sizeof(struct qla_npiv_entry) != 24);
8175 	BUILD_BUG_ON(sizeof(struct qla_npiv_header) != 16);
8176 	BUILD_BUG_ON(sizeof(struct rdp_rsp_payload) != 336);
8177 	BUILD_BUG_ON(sizeof(struct sns_cmd_pkt) != 2064);
8178 	BUILD_BUG_ON(sizeof(struct sts_entry_24xx) != 64);
8179 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry) != 64);
8180 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry_fx00) != 64);
8181 	BUILD_BUG_ON(sizeof(struct verify_chip_entry_84xx) != 64);
8182 	BUILD_BUG_ON(sizeof(struct verify_chip_rsp_84xx) != 52);
8183 	BUILD_BUG_ON(sizeof(struct vf_evfp_entry_24xx) != 56);
8184 	BUILD_BUG_ON(sizeof(struct vp_config_entry_24xx) != 64);
8185 	BUILD_BUG_ON(sizeof(struct vp_ctrl_entry_24xx) != 64);
8186 	BUILD_BUG_ON(sizeof(struct vp_rpt_id_entry_24xx) != 64);
8187 	BUILD_BUG_ON(sizeof(sts21_entry_t) != 64);
8188 	BUILD_BUG_ON(sizeof(sts22_entry_t) != 64);
8189 	BUILD_BUG_ON(sizeof(sts_cont_entry_t) != 64);
8190 	BUILD_BUG_ON(sizeof(sts_entry_t) != 64);
8191 	BUILD_BUG_ON(sizeof(sw_info_t) != 32);
8192 	BUILD_BUG_ON(sizeof(target_id_t) != 2);
8193 
8194 	/* Allocate cache for SRBs. */
8195 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
8196 	    SLAB_HWCACHE_ALIGN, NULL);
8197 	if (srb_cachep == NULL) {
8198 		ql_log(ql_log_fatal, NULL, 0x0001,
8199 		    "Unable to allocate SRB cache...Failing load!.\n");
8200 		return -ENOMEM;
8201 	}
8202 
8203 	/* Initialize target kmem_cache and mem_pools */
8204 	ret = qlt_init();
8205 	if (ret < 0) {
8206 		goto destroy_cache;
8207 	} else if (ret > 0) {
8208 		/*
8209 		 * If initiator mode is explictly disabled by qlt_init(),
8210 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
8211 		 * performing scsi_scan_target() during LOOP UP event.
8212 		 */
8213 		qla2xxx_transport_functions.disable_target_scan = 1;
8214 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
8215 	}
8216 
8217 	/* Derive version string. */
8218 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
8219 	if (ql2xextended_error_logging)
8220 		strcat(qla2x00_version_str, "-debug");
8221 	if (ql2xextended_error_logging == 1)
8222 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
8223 
8224 	qla2xxx_transport_template =
8225 	    fc_attach_transport(&qla2xxx_transport_functions);
8226 	if (!qla2xxx_transport_template) {
8227 		ql_log(ql_log_fatal, NULL, 0x0002,
8228 		    "fc_attach_transport failed...Failing load!.\n");
8229 		ret = -ENODEV;
8230 		goto qlt_exit;
8231 	}
8232 
8233 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
8234 	if (apidev_major < 0) {
8235 		ql_log(ql_log_fatal, NULL, 0x0003,
8236 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
8237 	}
8238 
8239 	qla2xxx_transport_vport_template =
8240 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
8241 	if (!qla2xxx_transport_vport_template) {
8242 		ql_log(ql_log_fatal, NULL, 0x0004,
8243 		    "fc_attach_transport vport failed...Failing load!.\n");
8244 		ret = -ENODEV;
8245 		goto unreg_chrdev;
8246 	}
8247 	ql_log(ql_log_info, NULL, 0x0005,
8248 	    "QLogic Fibre Channel HBA Driver: %s.\n",
8249 	    qla2x00_version_str);
8250 	ret = pci_register_driver(&qla2xxx_pci_driver);
8251 	if (ret) {
8252 		ql_log(ql_log_fatal, NULL, 0x0006,
8253 		    "pci_register_driver failed...ret=%d Failing load!.\n",
8254 		    ret);
8255 		goto release_vport_transport;
8256 	}
8257 	return ret;
8258 
8259 release_vport_transport:
8260 	fc_release_transport(qla2xxx_transport_vport_template);
8261 
8262 unreg_chrdev:
8263 	if (apidev_major >= 0)
8264 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8265 	fc_release_transport(qla2xxx_transport_template);
8266 
8267 qlt_exit:
8268 	qlt_exit();
8269 
8270 destroy_cache:
8271 	kmem_cache_destroy(srb_cachep);
8272 	return ret;
8273 }
8274 
8275 /**
8276  * qla2x00_module_exit - Module cleanup.
8277  **/
8278 static void __exit
8279 qla2x00_module_exit(void)
8280 {
8281 	pci_unregister_driver(&qla2xxx_pci_driver);
8282 	qla2x00_release_firmware();
8283 	kmem_cache_destroy(ctx_cachep);
8284 	fc_release_transport(qla2xxx_transport_vport_template);
8285 	if (apidev_major >= 0)
8286 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8287 	fc_release_transport(qla2xxx_transport_template);
8288 	qlt_exit();
8289 	kmem_cache_destroy(srb_cachep);
8290 }
8291 
8292 module_init(qla2x00_module_init);
8293 module_exit(qla2x00_module_exit);
8294 
8295 MODULE_AUTHOR("QLogic Corporation");
8296 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
8297 MODULE_LICENSE("GPL");
8298 MODULE_FIRMWARE(FW_FILE_ISP21XX);
8299 MODULE_FIRMWARE(FW_FILE_ISP22XX);
8300 MODULE_FIRMWARE(FW_FILE_ISP2300);
8301 MODULE_FIRMWARE(FW_FILE_ISP2322);
8302 MODULE_FIRMWARE(FW_FILE_ISP24XX);
8303 MODULE_FIRMWARE(FW_FILE_ISP25XX);
8304