xref: /linux/drivers/scsi/qla2xxx/qla_os.c (revision 4b660dbd9ee2059850fd30e0df420ca7a38a1856)
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/bitfield.h>
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13 #include <linux/mutex.h>
14 #include <linux/kobject.h>
15 #include <linux/slab.h>
16 #include <linux/blk-mq-pci.h>
17 #include <linux/refcount.h>
18 #include <linux/crash_dump.h>
19 #include <linux/trace_events.h>
20 #include <linux/trace.h>
21 
22 #include <scsi/scsi_tcq.h>
23 #include <scsi/scsicam.h>
24 #include <scsi/scsi_transport.h>
25 #include <scsi/scsi_transport_fc.h>
26 
27 #include "qla_target.h"
28 
29 /*
30  * Driver version
31  */
32 char qla2x00_version_str[40];
33 
34 static int apidev_major;
35 
36 /*
37  * SRB allocation cache
38  */
39 struct kmem_cache *srb_cachep;
40 
41 static struct trace_array *qla_trc_array;
42 
43 int ql2xfulldump_on_mpifail;
44 module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR);
45 MODULE_PARM_DESC(ql2xfulldump_on_mpifail,
46 		 "Set this to take full dump on MPI hang.");
47 
48 int ql2xenforce_iocb_limit = 2;
49 module_param(ql2xenforce_iocb_limit, int, S_IRUGO | S_IWUSR);
50 MODULE_PARM_DESC(ql2xenforce_iocb_limit,
51 		 "Enforce IOCB throttling, to avoid FW congestion. (default: 2) "
52 		 "1: track usage per queue, 2: track usage per adapter");
53 
54 /*
55  * CT6 CTX allocation cache
56  */
57 static struct kmem_cache *ctx_cachep;
58 /*
59  * error level for logging
60  */
61 uint ql_errlev = 0x8001;
62 
63 int ql2xsecenable;
64 module_param(ql2xsecenable, int, S_IRUGO);
65 MODULE_PARM_DESC(ql2xsecenable,
66 	"Enable/disable security. 0(Default) - Security disabled. 1 - Security enabled.");
67 
68 static int ql2xenableclass2;
69 module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
70 MODULE_PARM_DESC(ql2xenableclass2,
71 		"Specify if Class 2 operations are supported from the very "
72 		"beginning. Default is 0 - class 2 not supported.");
73 
74 
75 int ql2xlogintimeout = 20;
76 module_param(ql2xlogintimeout, int, S_IRUGO);
77 MODULE_PARM_DESC(ql2xlogintimeout,
78 		"Login timeout value in seconds.");
79 
80 int qlport_down_retry;
81 module_param(qlport_down_retry, int, S_IRUGO);
82 MODULE_PARM_DESC(qlport_down_retry,
83 		"Maximum number of command retries to a port that returns "
84 		"a PORT-DOWN status.");
85 
86 int ql2xplogiabsentdevice;
87 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
88 MODULE_PARM_DESC(ql2xplogiabsentdevice,
89 		"Option to enable PLOGI to devices that are not present after "
90 		"a Fabric scan.  This is needed for several broken switches. "
91 		"Default is 0 - no PLOGI. 1 - perform PLOGI.");
92 
93 int ql2xloginretrycount;
94 module_param(ql2xloginretrycount, int, S_IRUGO);
95 MODULE_PARM_DESC(ql2xloginretrycount,
96 		"Specify an alternate value for the NVRAM login retry count.");
97 
98 int ql2xallocfwdump = 1;
99 module_param(ql2xallocfwdump, int, S_IRUGO);
100 MODULE_PARM_DESC(ql2xallocfwdump,
101 		"Option to enable allocation of memory for a firmware dump "
102 		"during HBA initialization.  Memory allocation requirements "
103 		"vary by ISP type.  Default is 1 - allocate memory.");
104 
105 int ql2xextended_error_logging;
106 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
107 module_param_named(logging, ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
108 MODULE_PARM_DESC(ql2xextended_error_logging,
109 		"Option to enable extended error logging,\n"
110 		"\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
111 		"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
112 		"\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
113 		"\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
114 		"\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
115 		"\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
116 		"\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
117 		"\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
118 		"\t\t0x00008000 - Verbose.       0x00004000 - Target.\n"
119 		"\t\t0x00002000 - Target Mgmt.   0x00001000 - Target TMF.\n"
120 		"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
121 		"\t\t0x1e400000 - Preferred value for capturing essential "
122 		"debug information (equivalent to old "
123 		"ql2xextended_error_logging=1).\n"
124 		"\t\tDo LOGICAL OR of the value to enable more than one level");
125 
126 int ql2xextended_error_logging_ktrace = 1;
127 module_param(ql2xextended_error_logging_ktrace, int, S_IRUGO|S_IWUSR);
128 MODULE_PARM_DESC(ql2xextended_error_logging_ktrace,
129 		"Same BIT definition as ql2xextended_error_logging, but used to control logging to kernel trace buffer (default=1).\n");
130 
131 int ql2xshiftctondsd = 6;
132 module_param(ql2xshiftctondsd, int, S_IRUGO);
133 MODULE_PARM_DESC(ql2xshiftctondsd,
134 		"Set to control shifting of command type processing "
135 		"based on total number of SG elements.");
136 
137 int ql2xfdmienable = 1;
138 module_param(ql2xfdmienable, int, S_IRUGO|S_IWUSR);
139 module_param_named(fdmi, ql2xfdmienable, int, S_IRUGO|S_IWUSR);
140 MODULE_PARM_DESC(ql2xfdmienable,
141 		"Enables FDMI registrations. "
142 		"0 - no FDMI registrations. "
143 		"1 - provide FDMI registrations (default).");
144 
145 #define MAX_Q_DEPTH	64
146 static int ql2xmaxqdepth = MAX_Q_DEPTH;
147 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
148 MODULE_PARM_DESC(ql2xmaxqdepth,
149 		"Maximum queue depth to set for each LUN. "
150 		"Default is 64.");
151 
152 int ql2xenabledif = 2;
153 module_param(ql2xenabledif, int, S_IRUGO);
154 MODULE_PARM_DESC(ql2xenabledif,
155 		" Enable T10-CRC-DIF:\n"
156 		" Default is 2.\n"
157 		"  0 -- No DIF Support\n"
158 		"  1 -- Enable DIF for all types\n"
159 		"  2 -- Enable DIF for all types, except Type 0.\n");
160 
161 #if (IS_ENABLED(CONFIG_NVME_FC))
162 int ql2xnvmeenable = 1;
163 #else
164 int ql2xnvmeenable;
165 #endif
166 module_param(ql2xnvmeenable, int, 0644);
167 MODULE_PARM_DESC(ql2xnvmeenable,
168     "Enables NVME support. "
169     "0 - no NVMe.  Default is Y");
170 
171 int ql2xenablehba_err_chk = 2;
172 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
173 MODULE_PARM_DESC(ql2xenablehba_err_chk,
174 		" Enable T10-CRC-DIF Error isolation by HBA:\n"
175 		" Default is 2.\n"
176 		"  0 -- Error isolation disabled\n"
177 		"  1 -- Error isolation enabled only for DIX Type 0\n"
178 		"  2 -- Error isolation enabled for all Types\n");
179 
180 int ql2xiidmaenable = 1;
181 module_param(ql2xiidmaenable, int, S_IRUGO);
182 MODULE_PARM_DESC(ql2xiidmaenable,
183 		"Enables iIDMA settings "
184 		"Default is 1 - perform iIDMA. 0 - no iIDMA.");
185 
186 int ql2xmqsupport = 1;
187 module_param(ql2xmqsupport, int, S_IRUGO);
188 MODULE_PARM_DESC(ql2xmqsupport,
189 		"Enable on demand multiple queue pairs support "
190 		"Default is 1 for supported. "
191 		"Set it to 0 to turn off mq qpair support.");
192 
193 int ql2xfwloadbin;
194 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
195 module_param_named(fwload, ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
196 MODULE_PARM_DESC(ql2xfwloadbin,
197 		"Option to specify location from which to load ISP firmware:.\n"
198 		" 2 -- load firmware via the request_firmware() (hotplug).\n"
199 		"      interface.\n"
200 		" 1 -- load firmware from flash.\n"
201 		" 0 -- use default semantics.\n");
202 
203 int ql2xetsenable;
204 module_param(ql2xetsenable, int, S_IRUGO);
205 MODULE_PARM_DESC(ql2xetsenable,
206 		"Enables firmware ETS burst."
207 		"Default is 0 - skip ETS enablement.");
208 
209 int ql2xdbwr = 1;
210 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
211 MODULE_PARM_DESC(ql2xdbwr,
212 		"Option to specify scheme for request queue posting.\n"
213 		" 0 -- Regular doorbell.\n"
214 		" 1 -- CAMRAM doorbell (faster).\n");
215 
216 int ql2xgffidenable;
217 module_param(ql2xgffidenable, int, S_IRUGO);
218 MODULE_PARM_DESC(ql2xgffidenable,
219 		"Enables GFF_ID checks of port type. "
220 		"Default is 0 - Do not use GFF_ID information.");
221 
222 int ql2xasynctmfenable = 1;
223 module_param(ql2xasynctmfenable, int, S_IRUGO);
224 MODULE_PARM_DESC(ql2xasynctmfenable,
225 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
226 		"Default is 1 - Issue TM IOCBs via mailbox mechanism.");
227 
228 int ql2xdontresethba;
229 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
230 MODULE_PARM_DESC(ql2xdontresethba,
231 		"Option to specify reset behaviour.\n"
232 		" 0 (Default) -- Reset on failure.\n"
233 		" 1 -- Do not reset on failure.\n");
234 
235 uint64_t ql2xmaxlun = MAX_LUNS;
236 module_param(ql2xmaxlun, ullong, S_IRUGO);
237 MODULE_PARM_DESC(ql2xmaxlun,
238 		"Defines the maximum LU number to register with the SCSI "
239 		"midlayer. Default is 65535.");
240 
241 int ql2xmdcapmask = 0x1F;
242 module_param(ql2xmdcapmask, int, S_IRUGO);
243 MODULE_PARM_DESC(ql2xmdcapmask,
244 		"Set the Minidump driver capture mask level. "
245 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
246 
247 int ql2xmdenable = 1;
248 module_param(ql2xmdenable, int, S_IRUGO);
249 MODULE_PARM_DESC(ql2xmdenable,
250 		"Enable/disable MiniDump. "
251 		"0 - MiniDump disabled. "
252 		"1 (Default) - MiniDump enabled.");
253 
254 int ql2xexlogins;
255 module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
256 MODULE_PARM_DESC(ql2xexlogins,
257 		 "Number of extended Logins. "
258 		 "0 (Default)- Disabled.");
259 
260 int ql2xexchoffld = 1024;
261 module_param(ql2xexchoffld, uint, 0644);
262 MODULE_PARM_DESC(ql2xexchoffld,
263 	"Number of target exchanges.");
264 
265 int ql2xiniexchg = 1024;
266 module_param(ql2xiniexchg, uint, 0644);
267 MODULE_PARM_DESC(ql2xiniexchg,
268 	"Number of initiator exchanges.");
269 
270 int ql2xfwholdabts;
271 module_param(ql2xfwholdabts, int, S_IRUGO);
272 MODULE_PARM_DESC(ql2xfwholdabts,
273 		"Allow FW to hold status IOCB until ABTS rsp received. "
274 		"0 (Default) Do not set fw option. "
275 		"1 - Set fw option to hold ABTS.");
276 
277 int ql2xmvasynctoatio = 1;
278 module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
279 MODULE_PARM_DESC(ql2xmvasynctoatio,
280 		"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
281 		"0 (Default). Do not move IOCBs"
282 		"1 - Move IOCBs.");
283 
284 int ql2xautodetectsfp = 1;
285 module_param(ql2xautodetectsfp, int, 0444);
286 MODULE_PARM_DESC(ql2xautodetectsfp,
287 		 "Detect SFP range and set appropriate distance.\n"
288 		 "1 (Default): Enable\n");
289 
290 int ql2xenablemsix = 1;
291 module_param(ql2xenablemsix, int, 0444);
292 MODULE_PARM_DESC(ql2xenablemsix,
293 		 "Set to enable MSI or MSI-X interrupt mechanism.\n"
294 		 " Default is 1, enable MSI-X interrupt mechanism.\n"
295 		 " 0 -- enable traditional pin-based mechanism.\n"
296 		 " 1 -- enable MSI-X interrupt mechanism.\n"
297 		 " 2 -- enable MSI interrupt mechanism.\n");
298 
299 int qla2xuseresexchforels;
300 module_param(qla2xuseresexchforels, int, 0444);
301 MODULE_PARM_DESC(qla2xuseresexchforels,
302 		 "Reserve 1/2 of emergency exchanges for ELS.\n"
303 		 " 0 (default): disabled");
304 
305 static int ql2xprotmask;
306 module_param(ql2xprotmask, int, 0644);
307 MODULE_PARM_DESC(ql2xprotmask,
308 		 "Override DIF/DIX protection capabilities mask\n"
309 		 "Default is 0 which sets protection mask based on "
310 		 "capabilities reported by HBA firmware.\n");
311 
312 static int ql2xprotguard;
313 module_param(ql2xprotguard, int, 0644);
314 MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
315 		 "  0 -- Let HBA firmware decide\n"
316 		 "  1 -- Force T10 CRC\n"
317 		 "  2 -- Force IP checksum\n");
318 
319 int ql2xdifbundlinginternalbuffers;
320 module_param(ql2xdifbundlinginternalbuffers, int, 0644);
321 MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
322     "Force using internal buffers for DIF information\n"
323     "0 (Default). Based on check.\n"
324     "1 Force using internal buffers\n");
325 
326 int ql2xsmartsan;
327 module_param(ql2xsmartsan, int, 0444);
328 module_param_named(smartsan, ql2xsmartsan, int, 0444);
329 MODULE_PARM_DESC(ql2xsmartsan,
330 		"Send SmartSAN Management Attributes for FDMI Registration."
331 		" Default is 0 - No SmartSAN registration,"
332 		" 1 - Register SmartSAN Management Attributes.");
333 
334 int ql2xrdpenable;
335 module_param(ql2xrdpenable, int, 0444);
336 module_param_named(rdpenable, ql2xrdpenable, int, 0444);
337 MODULE_PARM_DESC(ql2xrdpenable,
338 		"Enables RDP responses. "
339 		"0 - no RDP responses (default). "
340 		"1 - provide RDP responses.");
341 int ql2xabts_wait_nvme = 1;
342 module_param(ql2xabts_wait_nvme, int, 0444);
343 MODULE_PARM_DESC(ql2xabts_wait_nvme,
344 		 "To wait for ABTS response on I/O timeouts for NVMe. (default: 1)");
345 
346 
347 static u32 ql2xdelay_before_pci_error_handling = 5;
348 module_param(ql2xdelay_before_pci_error_handling, uint, 0644);
349 MODULE_PARM_DESC(ql2xdelay_before_pci_error_handling,
350 	"Number of seconds delayed before qla begin PCI error self-handling (default: 5).\n");
351 
352 static void qla2x00_clear_drv_active(struct qla_hw_data *);
353 static void qla2x00_free_device(scsi_qla_host_t *);
354 static void qla2xxx_map_queues(struct Scsi_Host *shost);
355 static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
356 
357 u32 ql2xnvme_queues = DEF_NVME_HW_QUEUES;
358 module_param(ql2xnvme_queues, uint, S_IRUGO);
359 MODULE_PARM_DESC(ql2xnvme_queues,
360 	"Number of NVMe Queues that can be configured.\n"
361 	"Final value will be min(ql2xnvme_queues, num_cpus,num_chip_queues)\n"
362 	"1 - Minimum number of queues supported\n"
363 	"8 - Default value");
364 
365 int ql2xfc2target = 1;
366 module_param(ql2xfc2target, int, 0444);
367 MODULE_PARM_DESC(qla2xfc2target,
368 		  "Enables FC2 Target support. "
369 		  "0 - FC2 Target support is disabled. "
370 		  "1 - FC2 Target support is enabled (default).");
371 
372 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
373 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
374 
375 /* TODO Convert to inlines
376  *
377  * Timer routines
378  */
379 
380 __inline__ void
381 qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
382 {
383 	timer_setup(&vha->timer, qla2x00_timer, 0);
384 	vha->timer.expires = jiffies + interval * HZ;
385 	add_timer(&vha->timer);
386 	vha->timer_active = 1;
387 }
388 
389 static inline void
390 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
391 {
392 	/* Currently used for 82XX only. */
393 	if (vha->device_flags & DFLG_DEV_FAILED) {
394 		ql_dbg(ql_dbg_timer, vha, 0x600d,
395 		    "Device in a failed state, returning.\n");
396 		return;
397 	}
398 
399 	mod_timer(&vha->timer, jiffies + interval * HZ);
400 }
401 
402 static __inline__ void
403 qla2x00_stop_timer(scsi_qla_host_t *vha)
404 {
405 	del_timer_sync(&vha->timer);
406 	vha->timer_active = 0;
407 }
408 
409 static int qla2x00_do_dpc(void *data);
410 
411 static void qla2x00_rst_aen(scsi_qla_host_t *);
412 
413 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
414 	struct req_que **, struct rsp_que **);
415 static void qla2x00_free_fw_dump(struct qla_hw_data *);
416 static void qla2x00_mem_free(struct qla_hw_data *);
417 int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
418 	struct qla_qpair *qpair);
419 
420 /* -------------------------------------------------------------------------- */
421 static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
422     struct rsp_que *rsp)
423 {
424 	struct qla_hw_data *ha = vha->hw;
425 
426 	rsp->qpair = ha->base_qpair;
427 	rsp->req = req;
428 	ha->base_qpair->hw = ha;
429 	ha->base_qpair->req = req;
430 	ha->base_qpair->rsp = rsp;
431 	ha->base_qpair->vha = vha;
432 	ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
433 	ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
434 	ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
435 	ha->base_qpair->srb_mempool = ha->srb_mempool;
436 	INIT_LIST_HEAD(&ha->base_qpair->hints_list);
437 	INIT_LIST_HEAD(&ha->base_qpair->dsd_list);
438 	ha->base_qpair->enable_class_2 = ql2xenableclass2;
439 	/* init qpair to this cpu. Will adjust at run time. */
440 	qla_cpu_update(rsp->qpair, raw_smp_processor_id());
441 	ha->base_qpair->pdev = ha->pdev;
442 
443 	if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
444 		ha->base_qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
445 }
446 
447 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
448 				struct rsp_que *rsp)
449 {
450 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
451 
452 	ha->req_q_map = kcalloc(ha->max_req_queues, sizeof(struct req_que *),
453 				GFP_KERNEL);
454 	if (!ha->req_q_map) {
455 		ql_log(ql_log_fatal, vha, 0x003b,
456 		    "Unable to allocate memory for request queue ptrs.\n");
457 		goto fail_req_map;
458 	}
459 
460 	ha->rsp_q_map = kcalloc(ha->max_rsp_queues, sizeof(struct rsp_que *),
461 				GFP_KERNEL);
462 	if (!ha->rsp_q_map) {
463 		ql_log(ql_log_fatal, vha, 0x003c,
464 		    "Unable to allocate memory for response queue ptrs.\n");
465 		goto fail_rsp_map;
466 	}
467 
468 	ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
469 	if (ha->base_qpair == NULL) {
470 		ql_log(ql_log_warn, vha, 0x00e0,
471 		    "Failed to allocate base queue pair memory.\n");
472 		goto fail_base_qpair;
473 	}
474 
475 	qla_init_base_qpair(vha, req, rsp);
476 
477 	if ((ql2xmqsupport || ql2xnvmeenable) && ha->max_qpairs) {
478 		ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
479 			GFP_KERNEL);
480 		if (!ha->queue_pair_map) {
481 			ql_log(ql_log_fatal, vha, 0x0180,
482 			    "Unable to allocate memory for queue pair ptrs.\n");
483 			goto fail_qpair_map;
484 		}
485 		if (qla_mapq_alloc_qp_cpu_map(ha) != 0) {
486 			kfree(ha->queue_pair_map);
487 			ha->queue_pair_map = NULL;
488 			goto fail_qpair_map;
489 		}
490 	}
491 
492 	/*
493 	 * Make sure we record at least the request and response queue zero in
494 	 * case we need to free them if part of the probe fails.
495 	 */
496 	ha->rsp_q_map[0] = rsp;
497 	ha->req_q_map[0] = req;
498 	set_bit(0, ha->rsp_qid_map);
499 	set_bit(0, ha->req_qid_map);
500 	return 0;
501 
502 fail_qpair_map:
503 	kfree(ha->base_qpair);
504 	ha->base_qpair = NULL;
505 fail_base_qpair:
506 	kfree(ha->rsp_q_map);
507 	ha->rsp_q_map = NULL;
508 fail_rsp_map:
509 	kfree(ha->req_q_map);
510 	ha->req_q_map = NULL;
511 fail_req_map:
512 	return -ENOMEM;
513 }
514 
515 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
516 {
517 	if (IS_QLAFX00(ha)) {
518 		if (req && req->ring_fx00)
519 			dma_free_coherent(&ha->pdev->dev,
520 			    (req->length_fx00 + 1) * sizeof(request_t),
521 			    req->ring_fx00, req->dma_fx00);
522 	} else if (req && req->ring)
523 		dma_free_coherent(&ha->pdev->dev,
524 		(req->length + 1) * sizeof(request_t),
525 		req->ring, req->dma);
526 
527 	if (req)
528 		kfree(req->outstanding_cmds);
529 
530 	kfree(req);
531 }
532 
533 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
534 {
535 	if (IS_QLAFX00(ha)) {
536 		if (rsp && rsp->ring_fx00)
537 			dma_free_coherent(&ha->pdev->dev,
538 			    (rsp->length_fx00 + 1) * sizeof(request_t),
539 			    rsp->ring_fx00, rsp->dma_fx00);
540 	} else if (rsp && rsp->ring) {
541 		dma_free_coherent(&ha->pdev->dev,
542 		(rsp->length + 1) * sizeof(response_t),
543 		rsp->ring, rsp->dma);
544 	}
545 	kfree(rsp);
546 }
547 
548 static void qla2x00_free_queues(struct qla_hw_data *ha)
549 {
550 	struct req_que *req;
551 	struct rsp_que *rsp;
552 	int cnt;
553 	unsigned long flags;
554 
555 	if (ha->queue_pair_map) {
556 		kfree(ha->queue_pair_map);
557 		ha->queue_pair_map = NULL;
558 	}
559 	if (ha->base_qpair) {
560 		kfree(ha->base_qpair);
561 		ha->base_qpair = NULL;
562 	}
563 
564 	qla_mapq_free_qp_cpu_map(ha);
565 	spin_lock_irqsave(&ha->hardware_lock, flags);
566 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
567 		if (!test_bit(cnt, ha->req_qid_map))
568 			continue;
569 
570 		req = ha->req_q_map[cnt];
571 		clear_bit(cnt, ha->req_qid_map);
572 		ha->req_q_map[cnt] = NULL;
573 
574 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
575 		qla2x00_free_req_que(ha, req);
576 		spin_lock_irqsave(&ha->hardware_lock, flags);
577 	}
578 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
579 
580 	kfree(ha->req_q_map);
581 	ha->req_q_map = NULL;
582 
583 
584 	spin_lock_irqsave(&ha->hardware_lock, flags);
585 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
586 		if (!test_bit(cnt, ha->rsp_qid_map))
587 			continue;
588 
589 		rsp = ha->rsp_q_map[cnt];
590 		clear_bit(cnt, ha->rsp_qid_map);
591 		ha->rsp_q_map[cnt] =  NULL;
592 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
593 		qla2x00_free_rsp_que(ha, rsp);
594 		spin_lock_irqsave(&ha->hardware_lock, flags);
595 	}
596 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
597 
598 	kfree(ha->rsp_q_map);
599 	ha->rsp_q_map = NULL;
600 }
601 
602 static char *
603 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
604 {
605 	struct qla_hw_data *ha = vha->hw;
606 	static const char *const pci_bus_modes[] = {
607 		"33", "66", "100", "133",
608 	};
609 	uint16_t pci_bus;
610 
611 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
612 	if (pci_bus) {
613 		snprintf(str, str_len, "PCI-X (%s MHz)",
614 			 pci_bus_modes[pci_bus]);
615 	} else {
616 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
617 		snprintf(str, str_len, "PCI (%s MHz)", pci_bus_modes[pci_bus]);
618 	}
619 
620 	return str;
621 }
622 
623 static char *
624 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
625 {
626 	static const char *const pci_bus_modes[] = {
627 		"33", "66", "100", "133",
628 	};
629 	struct qla_hw_data *ha = vha->hw;
630 	uint32_t pci_bus;
631 
632 	if (pci_is_pcie(ha->pdev)) {
633 		uint32_t lstat, lspeed, lwidth;
634 		const char *speed_str;
635 
636 		pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
637 		lspeed = FIELD_GET(PCI_EXP_LNKCAP_SLS, lstat);
638 		lwidth = FIELD_GET(PCI_EXP_LNKCAP_MLW, lstat);
639 
640 		switch (lspeed) {
641 		case 1:
642 			speed_str = "2.5GT/s";
643 			break;
644 		case 2:
645 			speed_str = "5.0GT/s";
646 			break;
647 		case 3:
648 			speed_str = "8.0GT/s";
649 			break;
650 		case 4:
651 			speed_str = "16.0GT/s";
652 			break;
653 		default:
654 			speed_str = "<unknown>";
655 			break;
656 		}
657 		snprintf(str, str_len, "PCIe (%s x%d)", speed_str, lwidth);
658 
659 		return str;
660 	}
661 
662 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
663 	if (pci_bus == 0 || pci_bus == 8)
664 		snprintf(str, str_len, "PCI (%s MHz)",
665 			 pci_bus_modes[pci_bus >> 3]);
666 	else
667 		snprintf(str, str_len, "PCI-X Mode %d (%s MHz)",
668 			 pci_bus & 4 ? 2 : 1,
669 			 pci_bus_modes[pci_bus & 3]);
670 
671 	return str;
672 }
673 
674 static char *
675 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
676 {
677 	char un_str[10];
678 	struct qla_hw_data *ha = vha->hw;
679 
680 	snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
681 	    ha->fw_minor_version, ha->fw_subminor_version);
682 
683 	if (ha->fw_attributes & BIT_9) {
684 		strcat(str, "FLX");
685 		return (str);
686 	}
687 
688 	switch (ha->fw_attributes & 0xFF) {
689 	case 0x7:
690 		strcat(str, "EF");
691 		break;
692 	case 0x17:
693 		strcat(str, "TP");
694 		break;
695 	case 0x37:
696 		strcat(str, "IP");
697 		break;
698 	case 0x77:
699 		strcat(str, "VI");
700 		break;
701 	default:
702 		sprintf(un_str, "(%x)", ha->fw_attributes);
703 		strcat(str, un_str);
704 		break;
705 	}
706 	if (ha->fw_attributes & 0x100)
707 		strcat(str, "X");
708 
709 	return (str);
710 }
711 
712 static char *
713 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
714 {
715 	struct qla_hw_data *ha = vha->hw;
716 
717 	snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
718 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
719 	return str;
720 }
721 
722 void qla2x00_sp_free_dma(srb_t *sp)
723 {
724 	struct qla_hw_data *ha = sp->vha->hw;
725 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
726 
727 	if (sp->flags & SRB_DMA_VALID) {
728 		scsi_dma_unmap(cmd);
729 		sp->flags &= ~SRB_DMA_VALID;
730 	}
731 
732 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
733 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
734 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
735 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
736 	}
737 
738 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
739 		/* List assured to be having elements */
740 		qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
741 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
742 	}
743 
744 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
745 		struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
746 
747 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
748 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
749 	}
750 
751 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
752 		struct ct6_dsd *ctx1 = &sp->u.scmd.ct6_ctx;
753 
754 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
755 		    ctx1->fcp_cmnd_dma);
756 		list_splice(&ctx1->dsd_list, &sp->qpair->dsd_list);
757 		sp->qpair->dsd_inuse -= ctx1->dsd_use_cnt;
758 		sp->qpair->dsd_avail += ctx1->dsd_use_cnt;
759 	}
760 
761 	if (sp->flags & SRB_GOT_BUF)
762 		qla_put_buf(sp->qpair, &sp->u.scmd.buf_dsc);
763 }
764 
765 void qla2x00_sp_compl(srb_t *sp, int res)
766 {
767 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
768 	struct completion *comp = sp->comp;
769 
770 	/* kref: INIT */
771 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
772 	cmd->result = res;
773 	sp->type = 0;
774 	scsi_done(cmd);
775 	if (comp)
776 		complete(comp);
777 }
778 
779 void qla2xxx_qpair_sp_free_dma(srb_t *sp)
780 {
781 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
782 	struct qla_hw_data *ha = sp->fcport->vha->hw;
783 
784 	if (sp->flags & SRB_DMA_VALID) {
785 		scsi_dma_unmap(cmd);
786 		sp->flags &= ~SRB_DMA_VALID;
787 	}
788 
789 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
790 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
791 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
792 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
793 	}
794 
795 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
796 		/* List assured to be having elements */
797 		qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
798 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
799 	}
800 
801 	if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
802 		struct crc_context *difctx = sp->u.scmd.crc_ctx;
803 		struct dsd_dma *dif_dsd, *nxt_dsd;
804 
805 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
806 		    &difctx->ldif_dma_hndl_list, list) {
807 			list_del(&dif_dsd->list);
808 			dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
809 			    dif_dsd->dsd_list_dma);
810 			kfree(dif_dsd);
811 			difctx->no_dif_bundl--;
812 		}
813 
814 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
815 		    &difctx->ldif_dsd_list, list) {
816 			list_del(&dif_dsd->list);
817 			dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
818 			    dif_dsd->dsd_list_dma);
819 			kfree(dif_dsd);
820 			difctx->no_ldif_dsd--;
821 		}
822 
823 		if (difctx->no_ldif_dsd) {
824 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
825 			    "%s: difctx->no_ldif_dsd=%x\n",
826 			    __func__, difctx->no_ldif_dsd);
827 		}
828 
829 		if (difctx->no_dif_bundl) {
830 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
831 			    "%s: difctx->no_dif_bundl=%x\n",
832 			    __func__, difctx->no_dif_bundl);
833 		}
834 		sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
835 	}
836 
837 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
838 		struct ct6_dsd *ctx1 = &sp->u.scmd.ct6_ctx;
839 
840 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
841 		    ctx1->fcp_cmnd_dma);
842 		list_splice(&ctx1->dsd_list, &sp->qpair->dsd_list);
843 		sp->qpair->dsd_inuse -= ctx1->dsd_use_cnt;
844 		sp->qpair->dsd_avail += ctx1->dsd_use_cnt;
845 		sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
846 	}
847 
848 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
849 		struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
850 
851 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
852 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
853 	}
854 
855 	if (sp->flags & SRB_GOT_BUF)
856 		qla_put_buf(sp->qpair, &sp->u.scmd.buf_dsc);
857 }
858 
859 void qla2xxx_qpair_sp_compl(srb_t *sp, int res)
860 {
861 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
862 	struct completion *comp = sp->comp;
863 
864 	/* ref: INIT */
865 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
866 	cmd->result = res;
867 	sp->type = 0;
868 	scsi_done(cmd);
869 	if (comp)
870 		complete(comp);
871 }
872 
873 static int
874 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
875 {
876 	scsi_qla_host_t *vha = shost_priv(host);
877 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
878 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
879 	struct qla_hw_data *ha = vha->hw;
880 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
881 	srb_t *sp;
882 	int rval;
883 
884 	if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags)) ||
885 	    WARN_ON_ONCE(!rport)) {
886 		cmd->result = DID_NO_CONNECT << 16;
887 		goto qc24_fail_command;
888 	}
889 
890 	if (ha->mqenable) {
891 		uint32_t tag;
892 		uint16_t hwq;
893 		struct qla_qpair *qpair = NULL;
894 
895 		tag = blk_mq_unique_tag(scsi_cmd_to_rq(cmd));
896 		hwq = blk_mq_unique_tag_to_hwq(tag);
897 		qpair = ha->queue_pair_map[hwq];
898 
899 		if (qpair)
900 			return qla2xxx_mqueuecommand(host, cmd, qpair);
901 	}
902 
903 	if (ha->flags.eeh_busy) {
904 		if (ha->flags.pci_channel_io_perm_failure) {
905 			ql_dbg(ql_dbg_aer, vha, 0x9010,
906 			    "PCI Channel IO permanent failure, exiting "
907 			    "cmd=%p.\n", cmd);
908 			cmd->result = DID_NO_CONNECT << 16;
909 		} else {
910 			ql_dbg(ql_dbg_aer, vha, 0x9011,
911 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
912 			cmd->result = DID_REQUEUE << 16;
913 		}
914 		goto qc24_fail_command;
915 	}
916 
917 	rval = fc_remote_port_chkready(rport);
918 	if (rval) {
919 		cmd->result = rval;
920 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
921 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
922 		    cmd, rval);
923 		goto qc24_fail_command;
924 	}
925 
926 	if (!vha->flags.difdix_supported &&
927 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
928 			ql_dbg(ql_dbg_io, vha, 0x3004,
929 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
930 			    cmd);
931 			cmd->result = DID_NO_CONNECT << 16;
932 			goto qc24_fail_command;
933 	}
934 
935 	if (!fcport || fcport->deleted) {
936 		cmd->result = DID_IMM_RETRY << 16;
937 		goto qc24_fail_command;
938 	}
939 
940 	if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
941 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
942 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
943 			ql_dbg(ql_dbg_io, vha, 0x3005,
944 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
945 			    atomic_read(&fcport->state),
946 			    atomic_read(&base_vha->loop_state));
947 			cmd->result = DID_NO_CONNECT << 16;
948 			goto qc24_fail_command;
949 		}
950 		goto qc24_target_busy;
951 	}
952 
953 	/*
954 	 * Return target busy if we've received a non-zero retry_delay_timer
955 	 * in a FCP_RSP.
956 	 */
957 	if (fcport->retry_delay_timestamp == 0) {
958 		/* retry delay not set */
959 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
960 		fcport->retry_delay_timestamp = 0;
961 	else
962 		goto qc24_target_busy;
963 
964 	sp = scsi_cmd_priv(cmd);
965 	/* ref: INIT */
966 	qla2xxx_init_sp(sp, vha, vha->hw->base_qpair, fcport);
967 
968 	sp->u.scmd.cmd = cmd;
969 	sp->type = SRB_SCSI_CMD;
970 	sp->free = qla2x00_sp_free_dma;
971 	sp->done = qla2x00_sp_compl;
972 
973 	rval = ha->isp_ops->start_scsi(sp);
974 	if (rval != QLA_SUCCESS) {
975 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
976 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
977 		goto qc24_host_busy_free_sp;
978 	}
979 
980 	return 0;
981 
982 qc24_host_busy_free_sp:
983 	/* ref: INIT */
984 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
985 
986 qc24_target_busy:
987 	return SCSI_MLQUEUE_TARGET_BUSY;
988 
989 qc24_fail_command:
990 	scsi_done(cmd);
991 
992 	return 0;
993 }
994 
995 /* For MQ supported I/O */
996 int
997 qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
998     struct qla_qpair *qpair)
999 {
1000 	scsi_qla_host_t *vha = shost_priv(host);
1001 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1002 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
1003 	struct qla_hw_data *ha = vha->hw;
1004 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
1005 	srb_t *sp;
1006 	int rval;
1007 
1008 	rval = rport ? fc_remote_port_chkready(rport) : (DID_NO_CONNECT << 16);
1009 	if (rval) {
1010 		cmd->result = rval;
1011 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
1012 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
1013 		    cmd, rval);
1014 		goto qc24_fail_command;
1015 	}
1016 
1017 	if (!qpair->online) {
1018 		ql_dbg(ql_dbg_io, vha, 0x3077,
1019 		       "qpair not online. eeh_busy=%d.\n", ha->flags.eeh_busy);
1020 		cmd->result = DID_NO_CONNECT << 16;
1021 		goto qc24_fail_command;
1022 	}
1023 
1024 	if (!fcport || fcport->deleted) {
1025 		cmd->result = DID_IMM_RETRY << 16;
1026 		goto qc24_fail_command;
1027 	}
1028 
1029 	if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
1030 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
1031 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
1032 			ql_dbg(ql_dbg_io, vha, 0x3077,
1033 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
1034 			    atomic_read(&fcport->state),
1035 			    atomic_read(&base_vha->loop_state));
1036 			cmd->result = DID_NO_CONNECT << 16;
1037 			goto qc24_fail_command;
1038 		}
1039 		goto qc24_target_busy;
1040 	}
1041 
1042 	/*
1043 	 * Return target busy if we've received a non-zero retry_delay_timer
1044 	 * in a FCP_RSP.
1045 	 */
1046 	if (fcport->retry_delay_timestamp == 0) {
1047 		/* retry delay not set */
1048 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
1049 		fcport->retry_delay_timestamp = 0;
1050 	else
1051 		goto qc24_target_busy;
1052 
1053 	sp = scsi_cmd_priv(cmd);
1054 	/* ref: INIT */
1055 	qla2xxx_init_sp(sp, vha, qpair, fcport);
1056 
1057 	sp->u.scmd.cmd = cmd;
1058 	sp->type = SRB_SCSI_CMD;
1059 	sp->free = qla2xxx_qpair_sp_free_dma;
1060 	sp->done = qla2xxx_qpair_sp_compl;
1061 
1062 	rval = ha->isp_ops->start_scsi_mq(sp);
1063 	if (rval != QLA_SUCCESS) {
1064 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
1065 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
1066 		goto qc24_host_busy_free_sp;
1067 	}
1068 
1069 	return 0;
1070 
1071 qc24_host_busy_free_sp:
1072 	/* ref: INIT */
1073 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1074 
1075 qc24_target_busy:
1076 	return SCSI_MLQUEUE_TARGET_BUSY;
1077 
1078 qc24_fail_command:
1079 	scsi_done(cmd);
1080 
1081 	return 0;
1082 }
1083 
1084 /*
1085  * qla2x00_wait_for_hba_online
1086  *    Wait till the HBA is online after going through
1087  *    <= MAX_RETRIES_OF_ISP_ABORT  or
1088  *    finally HBA is disabled ie marked offline
1089  *
1090  * Input:
1091  *     ha - pointer to host adapter structure
1092  *
1093  * Note:
1094  *    Does context switching-Release SPIN_LOCK
1095  *    (if any) before calling this routine.
1096  *
1097  * Return:
1098  *    Success (Adapter is online) : 0
1099  *    Failed  (Adapter is offline/disabled) : 1
1100  */
1101 int
1102 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
1103 {
1104 	int		return_status;
1105 	unsigned long	wait_online;
1106 	struct qla_hw_data *ha = vha->hw;
1107 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1108 
1109 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1110 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1111 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1112 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1113 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
1114 
1115 		msleep(1000);
1116 	}
1117 	if (base_vha->flags.online)
1118 		return_status = QLA_SUCCESS;
1119 	else
1120 		return_status = QLA_FUNCTION_FAILED;
1121 
1122 	return (return_status);
1123 }
1124 
1125 static inline int test_fcport_count(scsi_qla_host_t *vha)
1126 {
1127 	struct qla_hw_data *ha = vha->hw;
1128 	unsigned long flags;
1129 	int res;
1130 	/* Return 0 = sleep, x=wake */
1131 
1132 	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1133 	ql_dbg(ql_dbg_init, vha, 0x00ec,
1134 	    "tgt %p, fcport_count=%d\n",
1135 	    vha, vha->fcport_count);
1136 	res = (vha->fcport_count == 0);
1137 	if  (res) {
1138 		struct fc_port *fcport;
1139 
1140 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1141 			if (fcport->deleted != QLA_SESS_DELETED) {
1142 				/* session(s) may not be fully logged in
1143 				 * (ie fcport_count=0), but session
1144 				 * deletion thread(s) may be inflight.
1145 				 */
1146 
1147 				res = 0;
1148 				break;
1149 			}
1150 		}
1151 	}
1152 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1153 
1154 	return res;
1155 }
1156 
1157 /*
1158  * qla2x00_wait_for_sess_deletion can only be called from remove_one.
1159  * it has dependency on UNLOADING flag to stop device discovery
1160  */
1161 void
1162 qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
1163 {
1164 	u8 i;
1165 
1166 	qla2x00_mark_all_devices_lost(vha);
1167 
1168 	for (i = 0; i < 10; i++) {
1169 		if (wait_event_timeout(vha->fcport_waitQ,
1170 		    test_fcport_count(vha), HZ) > 0)
1171 			break;
1172 	}
1173 
1174 	flush_workqueue(vha->hw->wq);
1175 }
1176 
1177 /*
1178  * qla2x00_wait_for_hba_ready
1179  * Wait till the HBA is ready before doing driver unload
1180  *
1181  * Input:
1182  *     ha - pointer to host adapter structure
1183  *
1184  * Note:
1185  *    Does context switching-Release SPIN_LOCK
1186  *    (if any) before calling this routine.
1187  *
1188  */
1189 static void
1190 qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
1191 {
1192 	struct qla_hw_data *ha = vha->hw;
1193 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1194 
1195 	while ((qla2x00_reset_active(vha) || ha->dpc_active ||
1196 		ha->flags.mbox_busy) ||
1197 	       test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
1198 	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
1199 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
1200 			break;
1201 		msleep(1000);
1202 	}
1203 }
1204 
1205 int
1206 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
1207 {
1208 	int		return_status;
1209 	unsigned long	wait_reset;
1210 	struct qla_hw_data *ha = vha->hw;
1211 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1212 
1213 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1214 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1215 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1216 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1217 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
1218 
1219 		msleep(1000);
1220 
1221 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
1222 		    ha->flags.chip_reset_done)
1223 			break;
1224 	}
1225 	if (ha->flags.chip_reset_done)
1226 		return_status = QLA_SUCCESS;
1227 	else
1228 		return_status = QLA_FUNCTION_FAILED;
1229 
1230 	return return_status;
1231 }
1232 
1233 /**************************************************************************
1234 * qla2xxx_eh_abort
1235 *
1236 * Description:
1237 *    The abort function will abort the specified command.
1238 *
1239 * Input:
1240 *    cmd = Linux SCSI command packet to be aborted.
1241 *
1242 * Returns:
1243 *    Either SUCCESS or FAILED.
1244 *
1245 * Note:
1246 *    Only return FAILED if command not returned by firmware.
1247 **************************************************************************/
1248 static int
1249 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
1250 {
1251 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1252 	DECLARE_COMPLETION_ONSTACK(comp);
1253 	srb_t *sp;
1254 	int ret;
1255 	unsigned int id;
1256 	uint64_t lun;
1257 	int rval;
1258 	struct qla_hw_data *ha = vha->hw;
1259 	uint32_t ratov_j;
1260 	struct qla_qpair *qpair;
1261 	unsigned long flags;
1262 	int fast_fail_status = SUCCESS;
1263 
1264 	if (qla2x00_isp_reg_stat(ha)) {
1265 		ql_log(ql_log_info, vha, 0x8042,
1266 		    "PCI/Register disconnect, exiting.\n");
1267 		qla_pci_set_eeh_busy(vha);
1268 		return FAILED;
1269 	}
1270 
1271 	/* Save any FAST_IO_FAIL value to return later if abort succeeds */
1272 	ret = fc_block_scsi_eh(cmd);
1273 	if (ret != 0)
1274 		fast_fail_status = ret;
1275 
1276 	sp = scsi_cmd_priv(cmd);
1277 	qpair = sp->qpair;
1278 
1279 	vha->cmd_timeout_cnt++;
1280 
1281 	if ((sp->fcport && sp->fcport->deleted) || !qpair)
1282 		return fast_fail_status != SUCCESS ? fast_fail_status : FAILED;
1283 
1284 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1285 	sp->comp = &comp;
1286 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1287 
1288 
1289 	id = cmd->device->id;
1290 	lun = cmd->device->lun;
1291 
1292 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
1293 	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
1294 	    vha->host_no, id, lun, sp, cmd, sp->handle);
1295 
1296 	/*
1297 	 * Abort will release the original Command/sp from FW. Let the
1298 	 * original command call scsi_done. In return, he will wakeup
1299 	 * this sleeping thread.
1300 	 */
1301 	rval = ha->isp_ops->abort_command(sp);
1302 
1303 	ql_dbg(ql_dbg_taskm, vha, 0x8003,
1304 	       "Abort command mbx cmd=%p, rval=%x.\n", cmd, rval);
1305 
1306 	/* Wait for the command completion. */
1307 	ratov_j = ha->r_a_tov/10 * 4 * 1000;
1308 	ratov_j = msecs_to_jiffies(ratov_j);
1309 	switch (rval) {
1310 	case QLA_SUCCESS:
1311 		if (!wait_for_completion_timeout(&comp, ratov_j)) {
1312 			ql_dbg(ql_dbg_taskm, vha, 0xffff,
1313 			    "%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
1314 			    __func__, ha->r_a_tov/10);
1315 			ret = FAILED;
1316 		} else {
1317 			ret = fast_fail_status;
1318 		}
1319 		break;
1320 	default:
1321 		ret = FAILED;
1322 		break;
1323 	}
1324 
1325 	sp->comp = NULL;
1326 
1327 	ql_log(ql_log_info, vha, 0x801c,
1328 	    "Abort command issued nexus=%ld:%d:%llu -- %x.\n",
1329 	    vha->host_no, id, lun, ret);
1330 
1331 	return ret;
1332 }
1333 
1334 #define ABORT_POLLING_PERIOD	1000
1335 #define ABORT_WAIT_ITER		((2 * 1000) / (ABORT_POLLING_PERIOD))
1336 
1337 /*
1338  * Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED.
1339  */
1340 static int
1341 __qla2x00_eh_wait_for_pending_commands(struct qla_qpair *qpair, unsigned int t,
1342 				       uint64_t l, enum nexus_wait_type type)
1343 {
1344 	int cnt, match, status;
1345 	unsigned long flags;
1346 	scsi_qla_host_t *vha = qpair->vha;
1347 	struct req_que *req = qpair->req;
1348 	srb_t *sp;
1349 	struct scsi_cmnd *cmd;
1350 	unsigned long wait_iter = ABORT_WAIT_ITER;
1351 	bool found;
1352 	struct qla_hw_data *ha = vha->hw;
1353 
1354 	status = QLA_SUCCESS;
1355 
1356 	while (wait_iter--) {
1357 		found = false;
1358 
1359 		spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1360 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1361 			sp = req->outstanding_cmds[cnt];
1362 			if (!sp)
1363 				continue;
1364 			if (sp->type != SRB_SCSI_CMD)
1365 				continue;
1366 			if (vha->vp_idx != sp->vha->vp_idx)
1367 				continue;
1368 			match = 0;
1369 			cmd = GET_CMD_SP(sp);
1370 			switch (type) {
1371 			case WAIT_HOST:
1372 				match = 1;
1373 				break;
1374 			case WAIT_TARGET:
1375 				if (sp->fcport)
1376 					match = sp->fcport->d_id.b24 == t;
1377 				else
1378 					match = 0;
1379 				break;
1380 			case WAIT_LUN:
1381 				if (sp->fcport)
1382 					match = (sp->fcport->d_id.b24 == t &&
1383 						cmd->device->lun == l);
1384 				else
1385 					match = 0;
1386 				break;
1387 			}
1388 			if (!match)
1389 				continue;
1390 
1391 			spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1392 
1393 			if (unlikely(pci_channel_offline(ha->pdev)) ||
1394 			    ha->flags.eeh_busy) {
1395 				ql_dbg(ql_dbg_taskm, vha, 0x8005,
1396 				    "Return:eh_wait.\n");
1397 				return status;
1398 			}
1399 
1400 			/*
1401 			 * SRB_SCSI_CMD is still in the outstanding_cmds array.
1402 			 * it means scsi_done has not called. Wait for it to
1403 			 * clear from outstanding_cmds.
1404 			 */
1405 			msleep(ABORT_POLLING_PERIOD);
1406 			spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1407 			found = true;
1408 		}
1409 		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1410 
1411 		if (!found)
1412 			break;
1413 	}
1414 
1415 	if (wait_iter == -1)
1416 		status = QLA_FUNCTION_FAILED;
1417 
1418 	return status;
1419 }
1420 
1421 int
1422 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1423 				     uint64_t l, enum nexus_wait_type type)
1424 {
1425 	struct qla_qpair *qpair;
1426 	struct qla_hw_data *ha = vha->hw;
1427 	int i, status = QLA_SUCCESS;
1428 
1429 	status = __qla2x00_eh_wait_for_pending_commands(ha->base_qpair, t, l,
1430 							type);
1431 	for (i = 0; status == QLA_SUCCESS && i < ha->max_qpairs; i++) {
1432 		qpair = ha->queue_pair_map[i];
1433 		if (!qpair)
1434 			continue;
1435 		status = __qla2x00_eh_wait_for_pending_commands(qpair, t, l,
1436 								type);
1437 	}
1438 	return status;
1439 }
1440 
1441 static char *reset_errors[] = {
1442 	"HBA not online",
1443 	"HBA not ready",
1444 	"Task management failed",
1445 	"Waiting for command completions",
1446 };
1447 
1448 static int
1449 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1450 {
1451 	struct scsi_device *sdev = cmd->device;
1452 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1453 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1454 	fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1455 	struct qla_hw_data *ha = vha->hw;
1456 	int err;
1457 
1458 	if (qla2x00_isp_reg_stat(ha)) {
1459 		ql_log(ql_log_info, vha, 0x803e,
1460 		    "PCI/Register disconnect, exiting.\n");
1461 		qla_pci_set_eeh_busy(vha);
1462 		return FAILED;
1463 	}
1464 
1465 	if (!fcport) {
1466 		return FAILED;
1467 	}
1468 
1469 	err = fc_block_rport(rport);
1470 	if (err != 0)
1471 		return err;
1472 
1473 	if (fcport->deleted)
1474 		return FAILED;
1475 
1476 	ql_log(ql_log_info, vha, 0x8009,
1477 	    "DEVICE RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", vha->host_no,
1478 	    sdev->id, sdev->lun, cmd);
1479 
1480 	err = 0;
1481 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1482 		ql_log(ql_log_warn, vha, 0x800a,
1483 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1484 		goto eh_reset_failed;
1485 	}
1486 	err = 2;
1487 	if (ha->isp_ops->lun_reset(fcport, sdev->lun, 1)
1488 		!= QLA_SUCCESS) {
1489 		ql_log(ql_log_warn, vha, 0x800c,
1490 		    "do_reset failed for cmd=%p.\n", cmd);
1491 		goto eh_reset_failed;
1492 	}
1493 	err = 3;
1494 	if (qla2x00_eh_wait_for_pending_commands(vha, fcport->d_id.b24,
1495 						 cmd->device->lun,
1496 						 WAIT_LUN) != QLA_SUCCESS) {
1497 		ql_log(ql_log_warn, vha, 0x800d,
1498 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1499 		goto eh_reset_failed;
1500 	}
1501 
1502 	ql_log(ql_log_info, vha, 0x800e,
1503 	    "DEVICE RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n",
1504 	    vha->host_no, sdev->id, sdev->lun, cmd);
1505 
1506 	return SUCCESS;
1507 
1508 eh_reset_failed:
1509 	ql_log(ql_log_info, vha, 0x800f,
1510 	    "DEVICE RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
1511 	    reset_errors[err], vha->host_no, sdev->id, sdev->lun,
1512 	    cmd);
1513 	vha->reset_cmd_err_cnt++;
1514 	return FAILED;
1515 }
1516 
1517 static int
1518 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1519 {
1520 	struct scsi_device *sdev = cmd->device;
1521 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1522 	scsi_qla_host_t *vha = shost_priv(rport_to_shost(rport));
1523 	struct qla_hw_data *ha = vha->hw;
1524 	fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
1525 	int err;
1526 
1527 	if (qla2x00_isp_reg_stat(ha)) {
1528 		ql_log(ql_log_info, vha, 0x803f,
1529 		    "PCI/Register disconnect, exiting.\n");
1530 		qla_pci_set_eeh_busy(vha);
1531 		return FAILED;
1532 	}
1533 
1534 	if (!fcport) {
1535 		return FAILED;
1536 	}
1537 
1538 	err = fc_block_rport(rport);
1539 	if (err != 0)
1540 		return err;
1541 
1542 	if (fcport->deleted)
1543 		return FAILED;
1544 
1545 	ql_log(ql_log_info, vha, 0x8009,
1546 	    "TARGET RESET ISSUED nexus=%ld:%d cmd=%p.\n", vha->host_no,
1547 	    sdev->id, cmd);
1548 
1549 	err = 0;
1550 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1551 		ql_log(ql_log_warn, vha, 0x800a,
1552 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1553 		goto eh_reset_failed;
1554 	}
1555 	err = 2;
1556 	if (ha->isp_ops->target_reset(fcport, 0, 0) != QLA_SUCCESS) {
1557 		ql_log(ql_log_warn, vha, 0x800c,
1558 		    "target_reset failed for cmd=%p.\n", cmd);
1559 		goto eh_reset_failed;
1560 	}
1561 	err = 3;
1562 	if (qla2x00_eh_wait_for_pending_commands(vha, fcport->d_id.b24, 0,
1563 						 WAIT_TARGET) != QLA_SUCCESS) {
1564 		ql_log(ql_log_warn, vha, 0x800d,
1565 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1566 		goto eh_reset_failed;
1567 	}
1568 
1569 	ql_log(ql_log_info, vha, 0x800e,
1570 	    "TARGET RESET SUCCEEDED nexus:%ld:%d cmd=%p.\n",
1571 	    vha->host_no, sdev->id, cmd);
1572 
1573 	return SUCCESS;
1574 
1575 eh_reset_failed:
1576 	ql_log(ql_log_info, vha, 0x800f,
1577 	    "TARGET RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n",
1578 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1579 	    cmd);
1580 	vha->reset_cmd_err_cnt++;
1581 	return FAILED;
1582 }
1583 
1584 /**************************************************************************
1585 * qla2xxx_eh_bus_reset
1586 *
1587 * Description:
1588 *    The bus reset function will reset the bus and abort any executing
1589 *    commands.
1590 *
1591 * Input:
1592 *    cmd = Linux SCSI command packet of the command that cause the
1593 *          bus reset.
1594 *
1595 * Returns:
1596 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1597 *
1598 **************************************************************************/
1599 static int
1600 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1601 {
1602 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1603 	int ret = FAILED;
1604 	unsigned int id;
1605 	uint64_t lun;
1606 	struct qla_hw_data *ha = vha->hw;
1607 
1608 	if (qla2x00_isp_reg_stat(ha)) {
1609 		ql_log(ql_log_info, vha, 0x8040,
1610 		    "PCI/Register disconnect, exiting.\n");
1611 		qla_pci_set_eeh_busy(vha);
1612 		return FAILED;
1613 	}
1614 
1615 	id = cmd->device->id;
1616 	lun = cmd->device->lun;
1617 
1618 	if (qla2x00_chip_is_down(vha))
1619 		return ret;
1620 
1621 	ql_log(ql_log_info, vha, 0x8012,
1622 	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1623 
1624 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1625 		ql_log(ql_log_fatal, vha, 0x8013,
1626 		    "Wait for hba online failed board disabled.\n");
1627 		goto eh_bus_reset_done;
1628 	}
1629 
1630 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1631 		ret = SUCCESS;
1632 
1633 	if (ret == FAILED)
1634 		goto eh_bus_reset_done;
1635 
1636 	/* Flush outstanding commands. */
1637 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1638 	    QLA_SUCCESS) {
1639 		ql_log(ql_log_warn, vha, 0x8014,
1640 		    "Wait for pending commands failed.\n");
1641 		ret = FAILED;
1642 	}
1643 
1644 eh_bus_reset_done:
1645 	ql_log(ql_log_warn, vha, 0x802b,
1646 	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
1647 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1648 
1649 	return ret;
1650 }
1651 
1652 /**************************************************************************
1653 * qla2xxx_eh_host_reset
1654 *
1655 * Description:
1656 *    The reset function will reset the Adapter.
1657 *
1658 * Input:
1659 *      cmd = Linux SCSI command packet of the command that cause the
1660 *            adapter reset.
1661 *
1662 * Returns:
1663 *      Either SUCCESS or FAILED.
1664 *
1665 * Note:
1666 **************************************************************************/
1667 static int
1668 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1669 {
1670 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1671 	struct qla_hw_data *ha = vha->hw;
1672 	int ret = FAILED;
1673 	unsigned int id;
1674 	uint64_t lun;
1675 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1676 
1677 	if (qla2x00_isp_reg_stat(ha)) {
1678 		ql_log(ql_log_info, vha, 0x8041,
1679 		    "PCI/Register disconnect, exiting.\n");
1680 		qla_pci_set_eeh_busy(vha);
1681 		return SUCCESS;
1682 	}
1683 
1684 	id = cmd->device->id;
1685 	lun = cmd->device->lun;
1686 
1687 	ql_log(ql_log_info, vha, 0x8018,
1688 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1689 
1690 	/*
1691 	 * No point in issuing another reset if one is active.  Also do not
1692 	 * attempt a reset if we are updating flash.
1693 	 */
1694 	if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
1695 		goto eh_host_reset_lock;
1696 
1697 	if (vha != base_vha) {
1698 		if (qla2x00_vp_abort_isp(vha))
1699 			goto eh_host_reset_lock;
1700 	} else {
1701 		if (IS_P3P_TYPE(vha->hw)) {
1702 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1703 				/* Ctx reset success */
1704 				ret = SUCCESS;
1705 				goto eh_host_reset_lock;
1706 			}
1707 			/* fall thru if ctx reset failed */
1708 		}
1709 		if (ha->wq)
1710 			flush_workqueue(ha->wq);
1711 
1712 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1713 		if (ha->isp_ops->abort_isp(base_vha)) {
1714 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1715 			/* failed. schedule dpc to try */
1716 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1717 
1718 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1719 				ql_log(ql_log_warn, vha, 0x802a,
1720 				    "wait for hba online failed.\n");
1721 				goto eh_host_reset_lock;
1722 			}
1723 		}
1724 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1725 	}
1726 
1727 	/* Waiting for command to be returned to OS.*/
1728 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1729 		QLA_SUCCESS)
1730 		ret = SUCCESS;
1731 
1732 eh_host_reset_lock:
1733 	ql_log(ql_log_info, vha, 0x8017,
1734 	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
1735 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1736 
1737 	return ret;
1738 }
1739 
1740 /*
1741 * qla2x00_loop_reset
1742 *      Issue loop reset.
1743 *
1744 * Input:
1745 *      ha = adapter block pointer.
1746 *
1747 * Returns:
1748 *      0 = success
1749 */
1750 int
1751 qla2x00_loop_reset(scsi_qla_host_t *vha)
1752 {
1753 	int ret;
1754 	struct qla_hw_data *ha = vha->hw;
1755 
1756 	if (IS_QLAFX00(ha))
1757 		return QLA_SUCCESS;
1758 
1759 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1760 		atomic_set(&vha->loop_state, LOOP_DOWN);
1761 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1762 		qla2x00_mark_all_devices_lost(vha);
1763 		ret = qla2x00_full_login_lip(vha);
1764 		if (ret != QLA_SUCCESS) {
1765 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1766 			    "full_login_lip=%d.\n", ret);
1767 		}
1768 	}
1769 
1770 	if (ha->flags.enable_lip_reset) {
1771 		ret = qla2x00_lip_reset(vha);
1772 		if (ret != QLA_SUCCESS)
1773 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1774 			    "lip_reset failed (%d).\n", ret);
1775 	}
1776 
1777 	/* Issue marker command only when we are going to start the I/O */
1778 	vha->marker_needed = 1;
1779 
1780 	return QLA_SUCCESS;
1781 }
1782 
1783 /*
1784  * The caller must ensure that no completion interrupts will happen
1785  * while this function is in progress.
1786  */
1787 static void qla2x00_abort_srb(struct qla_qpair *qp, srb_t *sp, const int res,
1788 			      unsigned long *flags)
1789 	__releases(qp->qp_lock_ptr)
1790 	__acquires(qp->qp_lock_ptr)
1791 {
1792 	DECLARE_COMPLETION_ONSTACK(comp);
1793 	scsi_qla_host_t *vha = qp->vha;
1794 	struct qla_hw_data *ha = vha->hw;
1795 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1796 	int rval;
1797 	bool ret_cmd;
1798 	uint32_t ratov_j;
1799 
1800 	lockdep_assert_held(qp->qp_lock_ptr);
1801 
1802 	if (qla2x00_chip_is_down(vha)) {
1803 		sp->done(sp, res);
1804 		return;
1805 	}
1806 
1807 	if (sp->type == SRB_NVME_CMD || sp->type == SRB_NVME_LS ||
1808 	    (sp->type == SRB_SCSI_CMD && !ha->flags.eeh_busy &&
1809 	     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
1810 	     !qla2x00_isp_reg_stat(ha))) {
1811 		if (sp->comp) {
1812 			sp->done(sp, res);
1813 			return;
1814 		}
1815 
1816 		sp->comp = &comp;
1817 		spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
1818 
1819 		rval = ha->isp_ops->abort_command(sp);
1820 		/* Wait for command completion. */
1821 		ret_cmd = false;
1822 		ratov_j = ha->r_a_tov/10 * 4 * 1000;
1823 		ratov_j = msecs_to_jiffies(ratov_j);
1824 		switch (rval) {
1825 		case QLA_SUCCESS:
1826 			if (wait_for_completion_timeout(&comp, ratov_j)) {
1827 				ql_dbg(ql_dbg_taskm, vha, 0xffff,
1828 				    "%s: Abort wait timer (4 * R_A_TOV[%d]) expired\n",
1829 				    __func__, ha->r_a_tov/10);
1830 				ret_cmd = true;
1831 			}
1832 			/* else FW return SP to driver */
1833 			break;
1834 		default:
1835 			ret_cmd = true;
1836 			break;
1837 		}
1838 
1839 		spin_lock_irqsave(qp->qp_lock_ptr, *flags);
1840 		switch (sp->type) {
1841 		case SRB_SCSI_CMD:
1842 			if (ret_cmd && blk_mq_request_started(scsi_cmd_to_rq(cmd)))
1843 				sp->done(sp, res);
1844 			break;
1845 		default:
1846 			if (ret_cmd)
1847 				sp->done(sp, res);
1848 			break;
1849 		}
1850 	} else {
1851 		sp->done(sp, res);
1852 	}
1853 }
1854 
1855 /*
1856  * The caller must ensure that no completion interrupts will happen
1857  * while this function is in progress.
1858  */
1859 static void
1860 __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
1861 {
1862 	int cnt;
1863 	unsigned long flags;
1864 	srb_t *sp;
1865 	scsi_qla_host_t *vha = qp->vha;
1866 	struct qla_hw_data *ha = vha->hw;
1867 	struct req_que *req;
1868 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1869 	struct qla_tgt_cmd *cmd;
1870 
1871 	if (!ha->req_q_map)
1872 		return;
1873 	spin_lock_irqsave(qp->qp_lock_ptr, flags);
1874 	req = qp->req;
1875 	for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1876 		sp = req->outstanding_cmds[cnt];
1877 		if (sp) {
1878 			/*
1879 			 * perform lockless completion during driver unload
1880 			 */
1881 			if (qla2x00_chip_is_down(vha)) {
1882 				req->outstanding_cmds[cnt] = NULL;
1883 				spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1884 				sp->done(sp, res);
1885 				spin_lock_irqsave(qp->qp_lock_ptr, flags);
1886 				continue;
1887 			}
1888 
1889 			switch (sp->cmd_type) {
1890 			case TYPE_SRB:
1891 				qla2x00_abort_srb(qp, sp, res, &flags);
1892 				break;
1893 			case TYPE_TGT_CMD:
1894 				if (!vha->hw->tgt.tgt_ops || !tgt ||
1895 				    qla_ini_mode_enabled(vha)) {
1896 					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
1897 					    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
1898 					    vha->dpc_flags);
1899 					continue;
1900 				}
1901 				cmd = (struct qla_tgt_cmd *)sp;
1902 				cmd->aborted = 1;
1903 				break;
1904 			case TYPE_TGT_TMCMD:
1905 				/* Skip task management functions. */
1906 				break;
1907 			default:
1908 				break;
1909 			}
1910 			req->outstanding_cmds[cnt] = NULL;
1911 		}
1912 	}
1913 	spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1914 }
1915 
1916 /*
1917  * The caller must ensure that no completion interrupts will happen
1918  * while this function is in progress.
1919  */
1920 void
1921 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1922 {
1923 	int que;
1924 	struct qla_hw_data *ha = vha->hw;
1925 
1926 	/* Continue only if initialization complete. */
1927 	if (!ha->base_qpair)
1928 		return;
1929 	__qla2x00_abort_all_cmds(ha->base_qpair, res);
1930 
1931 	if (!ha->queue_pair_map)
1932 		return;
1933 	for (que = 0; que < ha->max_qpairs; que++) {
1934 		if (!ha->queue_pair_map[que])
1935 			continue;
1936 
1937 		__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
1938 	}
1939 }
1940 
1941 static int
1942 qla2xxx_slave_alloc(struct scsi_device *sdev)
1943 {
1944 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1945 
1946 	if (!rport || fc_remote_port_chkready(rport))
1947 		return -ENXIO;
1948 
1949 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1950 
1951 	return 0;
1952 }
1953 
1954 static int
1955 qla2xxx_slave_configure(struct scsi_device *sdev)
1956 {
1957 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1958 	struct req_que *req = vha->req;
1959 
1960 	if (IS_T10_PI_CAPABLE(vha->hw))
1961 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1962 
1963 	scsi_change_queue_depth(sdev, req->max_q_depth);
1964 	return 0;
1965 }
1966 
1967 static void
1968 qla2xxx_slave_destroy(struct scsi_device *sdev)
1969 {
1970 	sdev->hostdata = NULL;
1971 }
1972 
1973 /**
1974  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1975  * @ha: HA context
1976  *
1977  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1978  * supported addressing method.
1979  */
1980 static void
1981 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1982 {
1983 	/* Assume a 32bit DMA mask. */
1984 	ha->flags.enable_64bit_addressing = 0;
1985 
1986 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1987 		/* Any upper-dword bits set? */
1988 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1989 		    !dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1990 			/* Ok, a 64bit DMA mask is applicable. */
1991 			ha->flags.enable_64bit_addressing = 1;
1992 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1993 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1994 			return;
1995 		}
1996 	}
1997 
1998 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1999 	dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
2000 }
2001 
2002 static void
2003 qla2x00_enable_intrs(struct qla_hw_data *ha)
2004 {
2005 	unsigned long flags = 0;
2006 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2007 
2008 	spin_lock_irqsave(&ha->hardware_lock, flags);
2009 	ha->interrupts_on = 1;
2010 	/* enable risc and host interrupts */
2011 	wrt_reg_word(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
2012 	rd_reg_word(&reg->ictrl);
2013 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2014 
2015 }
2016 
2017 static void
2018 qla2x00_disable_intrs(struct qla_hw_data *ha)
2019 {
2020 	unsigned long flags = 0;
2021 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2022 
2023 	spin_lock_irqsave(&ha->hardware_lock, flags);
2024 	ha->interrupts_on = 0;
2025 	/* disable risc and host interrupts */
2026 	wrt_reg_word(&reg->ictrl, 0);
2027 	rd_reg_word(&reg->ictrl);
2028 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2029 }
2030 
2031 static void
2032 qla24xx_enable_intrs(struct qla_hw_data *ha)
2033 {
2034 	unsigned long flags = 0;
2035 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2036 
2037 	spin_lock_irqsave(&ha->hardware_lock, flags);
2038 	ha->interrupts_on = 1;
2039 	wrt_reg_dword(&reg->ictrl, ICRX_EN_RISC_INT);
2040 	rd_reg_dword(&reg->ictrl);
2041 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2042 }
2043 
2044 static void
2045 qla24xx_disable_intrs(struct qla_hw_data *ha)
2046 {
2047 	unsigned long flags = 0;
2048 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2049 
2050 	if (IS_NOPOLLING_TYPE(ha))
2051 		return;
2052 	spin_lock_irqsave(&ha->hardware_lock, flags);
2053 	ha->interrupts_on = 0;
2054 	wrt_reg_dword(&reg->ictrl, 0);
2055 	rd_reg_dword(&reg->ictrl);
2056 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2057 }
2058 
2059 static int
2060 qla2x00_iospace_config(struct qla_hw_data *ha)
2061 {
2062 	resource_size_t pio;
2063 	uint16_t msix;
2064 
2065 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2066 	    QLA2XXX_DRIVER_NAME)) {
2067 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
2068 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2069 		    pci_name(ha->pdev));
2070 		goto iospace_error_exit;
2071 	}
2072 	if (!(ha->bars & 1))
2073 		goto skip_pio;
2074 
2075 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
2076 	pio = pci_resource_start(ha->pdev, 0);
2077 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
2078 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2079 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
2080 			    "Invalid pci I/O region size (%s).\n",
2081 			    pci_name(ha->pdev));
2082 			pio = 0;
2083 		}
2084 	} else {
2085 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
2086 		    "Region #0 no a PIO resource (%s).\n",
2087 		    pci_name(ha->pdev));
2088 		pio = 0;
2089 	}
2090 	ha->pio_address = pio;
2091 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
2092 	    "PIO address=%llu.\n",
2093 	    (unsigned long long)ha->pio_address);
2094 
2095 skip_pio:
2096 	/* Use MMIO operations for all accesses. */
2097 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
2098 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
2099 		    "Region #1 not an MMIO resource (%s), aborting.\n",
2100 		    pci_name(ha->pdev));
2101 		goto iospace_error_exit;
2102 	}
2103 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
2104 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
2105 		    "Invalid PCI mem region size (%s), aborting.\n",
2106 		    pci_name(ha->pdev));
2107 		goto iospace_error_exit;
2108 	}
2109 
2110 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
2111 	if (!ha->iobase) {
2112 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
2113 		    "Cannot remap MMIO (%s), aborting.\n",
2114 		    pci_name(ha->pdev));
2115 		goto iospace_error_exit;
2116 	}
2117 
2118 	/* Determine queue resources */
2119 	ha->max_req_queues = ha->max_rsp_queues = 1;
2120 	ha->msix_count = QLA_BASE_VECTORS;
2121 
2122 	/* Check if FW supports MQ or not */
2123 	if (!(ha->fw_attributes & BIT_6))
2124 		goto mqiobase_exit;
2125 
2126 	if (!ql2xmqsupport || !ql2xnvmeenable ||
2127 	    (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
2128 		goto mqiobase_exit;
2129 
2130 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
2131 			pci_resource_len(ha->pdev, 3));
2132 	if (ha->mqiobase) {
2133 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
2134 		    "MQIO Base=%p.\n", ha->mqiobase);
2135 		/* Read MSIX vector size of the board */
2136 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
2137 		ha->msix_count = msix + 1;
2138 		/* Max queues are bounded by available msix vectors */
2139 		/* MB interrupt uses 1 vector */
2140 		ha->max_req_queues = ha->msix_count - 1;
2141 		ha->max_rsp_queues = ha->max_req_queues;
2142 		/* Queue pairs is the max value minus the base queue pair */
2143 		ha->max_qpairs = ha->max_rsp_queues - 1;
2144 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
2145 		    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2146 
2147 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
2148 		    "MSI-X vector count: %d.\n", ha->msix_count);
2149 	} else
2150 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
2151 		    "BAR 3 not enabled.\n");
2152 
2153 mqiobase_exit:
2154 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
2155 	    "MSIX Count: %d.\n", ha->msix_count);
2156 	return (0);
2157 
2158 iospace_error_exit:
2159 	return (-ENOMEM);
2160 }
2161 
2162 
2163 static int
2164 qla83xx_iospace_config(struct qla_hw_data *ha)
2165 {
2166 	uint16_t msix;
2167 
2168 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2169 	    QLA2XXX_DRIVER_NAME)) {
2170 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
2171 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2172 		    pci_name(ha->pdev));
2173 
2174 		goto iospace_error_exit;
2175 	}
2176 
2177 	/* Use MMIO operations for all accesses. */
2178 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
2179 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
2180 		    "Invalid pci I/O region size (%s).\n",
2181 		    pci_name(ha->pdev));
2182 		goto iospace_error_exit;
2183 	}
2184 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2185 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
2186 		    "Invalid PCI mem region size (%s), aborting\n",
2187 			pci_name(ha->pdev));
2188 		goto iospace_error_exit;
2189 	}
2190 
2191 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
2192 	if (!ha->iobase) {
2193 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
2194 		    "Cannot remap MMIO (%s), aborting.\n",
2195 		    pci_name(ha->pdev));
2196 		goto iospace_error_exit;
2197 	}
2198 
2199 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
2200 	/* 83XX 26XX always use MQ type access for queues
2201 	 * - mbar 2, a.k.a region 4 */
2202 	ha->max_req_queues = ha->max_rsp_queues = 1;
2203 	ha->msix_count = QLA_BASE_VECTORS;
2204 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
2205 			pci_resource_len(ha->pdev, 4));
2206 
2207 	if (!ha->mqiobase) {
2208 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
2209 		    "BAR2/region4 not enabled\n");
2210 		goto mqiobase_exit;
2211 	}
2212 
2213 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
2214 			pci_resource_len(ha->pdev, 2));
2215 	if (ha->msixbase) {
2216 		/* Read MSIX vector size of the board */
2217 		pci_read_config_word(ha->pdev,
2218 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
2219 		ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE)  + 1;
2220 		/*
2221 		 * By default, driver uses at least two msix vectors
2222 		 * (default & rspq)
2223 		 */
2224 		if (ql2xmqsupport || ql2xnvmeenable) {
2225 			/* MB interrupt uses 1 vector */
2226 			ha->max_req_queues = ha->msix_count - 1;
2227 
2228 			/* ATIOQ needs 1 vector. That's 1 less QPair */
2229 			if (QLA_TGT_MODE_ENABLED())
2230 				ha->max_req_queues--;
2231 
2232 			ha->max_rsp_queues = ha->max_req_queues;
2233 
2234 			/* Queue pairs is the max value minus
2235 			 * the base queue pair */
2236 			ha->max_qpairs = ha->max_req_queues - 1;
2237 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x00e3,
2238 			    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2239 		}
2240 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
2241 		    "MSI-X vector count: %d.\n", ha->msix_count);
2242 	} else
2243 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
2244 		    "BAR 1 not enabled.\n");
2245 
2246 mqiobase_exit:
2247 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
2248 	    "MSIX Count: %d.\n", ha->msix_count);
2249 	return 0;
2250 
2251 iospace_error_exit:
2252 	return -ENOMEM;
2253 }
2254 
2255 static struct isp_operations qla2100_isp_ops = {
2256 	.pci_config		= qla2100_pci_config,
2257 	.reset_chip		= qla2x00_reset_chip,
2258 	.chip_diag		= qla2x00_chip_diag,
2259 	.config_rings		= qla2x00_config_rings,
2260 	.reset_adapter		= qla2x00_reset_adapter,
2261 	.nvram_config		= qla2x00_nvram_config,
2262 	.update_fw_options	= qla2x00_update_fw_options,
2263 	.load_risc		= qla2x00_load_risc,
2264 	.pci_info_str		= qla2x00_pci_info_str,
2265 	.fw_version_str		= qla2x00_fw_version_str,
2266 	.intr_handler		= qla2100_intr_handler,
2267 	.enable_intrs		= qla2x00_enable_intrs,
2268 	.disable_intrs		= qla2x00_disable_intrs,
2269 	.abort_command		= qla2x00_abort_command,
2270 	.target_reset		= qla2x00_abort_target,
2271 	.lun_reset		= qla2x00_lun_reset,
2272 	.fabric_login		= qla2x00_login_fabric,
2273 	.fabric_logout		= qla2x00_fabric_logout,
2274 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2275 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2276 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2277 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2278 	.read_nvram		= qla2x00_read_nvram_data,
2279 	.write_nvram		= qla2x00_write_nvram_data,
2280 	.fw_dump		= qla2100_fw_dump,
2281 	.beacon_on		= NULL,
2282 	.beacon_off		= NULL,
2283 	.beacon_blink		= NULL,
2284 	.read_optrom		= qla2x00_read_optrom_data,
2285 	.write_optrom		= qla2x00_write_optrom_data,
2286 	.get_flash_version	= qla2x00_get_flash_version,
2287 	.start_scsi		= qla2x00_start_scsi,
2288 	.start_scsi_mq          = NULL,
2289 	.abort_isp		= qla2x00_abort_isp,
2290 	.iospace_config     	= qla2x00_iospace_config,
2291 	.initialize_adapter	= qla2x00_initialize_adapter,
2292 };
2293 
2294 static struct isp_operations qla2300_isp_ops = {
2295 	.pci_config		= qla2300_pci_config,
2296 	.reset_chip		= qla2x00_reset_chip,
2297 	.chip_diag		= qla2x00_chip_diag,
2298 	.config_rings		= qla2x00_config_rings,
2299 	.reset_adapter		= qla2x00_reset_adapter,
2300 	.nvram_config		= qla2x00_nvram_config,
2301 	.update_fw_options	= qla2x00_update_fw_options,
2302 	.load_risc		= qla2x00_load_risc,
2303 	.pci_info_str		= qla2x00_pci_info_str,
2304 	.fw_version_str		= qla2x00_fw_version_str,
2305 	.intr_handler		= qla2300_intr_handler,
2306 	.enable_intrs		= qla2x00_enable_intrs,
2307 	.disable_intrs		= qla2x00_disable_intrs,
2308 	.abort_command		= qla2x00_abort_command,
2309 	.target_reset		= qla2x00_abort_target,
2310 	.lun_reset		= qla2x00_lun_reset,
2311 	.fabric_login		= qla2x00_login_fabric,
2312 	.fabric_logout		= qla2x00_fabric_logout,
2313 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2314 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2315 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2316 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2317 	.read_nvram		= qla2x00_read_nvram_data,
2318 	.write_nvram		= qla2x00_write_nvram_data,
2319 	.fw_dump		= qla2300_fw_dump,
2320 	.beacon_on		= qla2x00_beacon_on,
2321 	.beacon_off		= qla2x00_beacon_off,
2322 	.beacon_blink		= qla2x00_beacon_blink,
2323 	.read_optrom		= qla2x00_read_optrom_data,
2324 	.write_optrom		= qla2x00_write_optrom_data,
2325 	.get_flash_version	= qla2x00_get_flash_version,
2326 	.start_scsi		= qla2x00_start_scsi,
2327 	.start_scsi_mq          = NULL,
2328 	.abort_isp		= qla2x00_abort_isp,
2329 	.iospace_config		= qla2x00_iospace_config,
2330 	.initialize_adapter	= qla2x00_initialize_adapter,
2331 };
2332 
2333 static struct isp_operations qla24xx_isp_ops = {
2334 	.pci_config		= qla24xx_pci_config,
2335 	.reset_chip		= qla24xx_reset_chip,
2336 	.chip_diag		= qla24xx_chip_diag,
2337 	.config_rings		= qla24xx_config_rings,
2338 	.reset_adapter		= qla24xx_reset_adapter,
2339 	.nvram_config		= qla24xx_nvram_config,
2340 	.update_fw_options	= qla24xx_update_fw_options,
2341 	.load_risc		= qla24xx_load_risc,
2342 	.pci_info_str		= qla24xx_pci_info_str,
2343 	.fw_version_str		= qla24xx_fw_version_str,
2344 	.intr_handler		= qla24xx_intr_handler,
2345 	.enable_intrs		= qla24xx_enable_intrs,
2346 	.disable_intrs		= qla24xx_disable_intrs,
2347 	.abort_command		= qla24xx_abort_command,
2348 	.target_reset		= qla24xx_abort_target,
2349 	.lun_reset		= qla24xx_lun_reset,
2350 	.fabric_login		= qla24xx_login_fabric,
2351 	.fabric_logout		= qla24xx_fabric_logout,
2352 	.calc_req_entries	= NULL,
2353 	.build_iocbs		= NULL,
2354 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2355 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2356 	.read_nvram		= qla24xx_read_nvram_data,
2357 	.write_nvram		= qla24xx_write_nvram_data,
2358 	.fw_dump		= qla24xx_fw_dump,
2359 	.beacon_on		= qla24xx_beacon_on,
2360 	.beacon_off		= qla24xx_beacon_off,
2361 	.beacon_blink		= qla24xx_beacon_blink,
2362 	.read_optrom		= qla24xx_read_optrom_data,
2363 	.write_optrom		= qla24xx_write_optrom_data,
2364 	.get_flash_version	= qla24xx_get_flash_version,
2365 	.start_scsi		= qla24xx_start_scsi,
2366 	.start_scsi_mq          = NULL,
2367 	.abort_isp		= qla2x00_abort_isp,
2368 	.iospace_config		= qla2x00_iospace_config,
2369 	.initialize_adapter	= qla2x00_initialize_adapter,
2370 };
2371 
2372 static struct isp_operations qla25xx_isp_ops = {
2373 	.pci_config		= qla25xx_pci_config,
2374 	.reset_chip		= qla24xx_reset_chip,
2375 	.chip_diag		= qla24xx_chip_diag,
2376 	.config_rings		= qla24xx_config_rings,
2377 	.reset_adapter		= qla24xx_reset_adapter,
2378 	.nvram_config		= qla24xx_nvram_config,
2379 	.update_fw_options	= qla24xx_update_fw_options,
2380 	.load_risc		= qla24xx_load_risc,
2381 	.pci_info_str		= qla24xx_pci_info_str,
2382 	.fw_version_str		= qla24xx_fw_version_str,
2383 	.intr_handler		= qla24xx_intr_handler,
2384 	.enable_intrs		= qla24xx_enable_intrs,
2385 	.disable_intrs		= qla24xx_disable_intrs,
2386 	.abort_command		= qla24xx_abort_command,
2387 	.target_reset		= qla24xx_abort_target,
2388 	.lun_reset		= qla24xx_lun_reset,
2389 	.fabric_login		= qla24xx_login_fabric,
2390 	.fabric_logout		= qla24xx_fabric_logout,
2391 	.calc_req_entries	= NULL,
2392 	.build_iocbs		= NULL,
2393 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2394 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2395 	.read_nvram		= qla25xx_read_nvram_data,
2396 	.write_nvram		= qla25xx_write_nvram_data,
2397 	.fw_dump		= qla25xx_fw_dump,
2398 	.beacon_on		= qla24xx_beacon_on,
2399 	.beacon_off		= qla24xx_beacon_off,
2400 	.beacon_blink		= qla24xx_beacon_blink,
2401 	.read_optrom		= qla25xx_read_optrom_data,
2402 	.write_optrom		= qla24xx_write_optrom_data,
2403 	.get_flash_version	= qla24xx_get_flash_version,
2404 	.start_scsi		= qla24xx_dif_start_scsi,
2405 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2406 	.abort_isp		= qla2x00_abort_isp,
2407 	.iospace_config		= qla2x00_iospace_config,
2408 	.initialize_adapter	= qla2x00_initialize_adapter,
2409 };
2410 
2411 static struct isp_operations qla81xx_isp_ops = {
2412 	.pci_config		= qla25xx_pci_config,
2413 	.reset_chip		= qla24xx_reset_chip,
2414 	.chip_diag		= qla24xx_chip_diag,
2415 	.config_rings		= qla24xx_config_rings,
2416 	.reset_adapter		= qla24xx_reset_adapter,
2417 	.nvram_config		= qla81xx_nvram_config,
2418 	.update_fw_options	= qla24xx_update_fw_options,
2419 	.load_risc		= qla81xx_load_risc,
2420 	.pci_info_str		= qla24xx_pci_info_str,
2421 	.fw_version_str		= qla24xx_fw_version_str,
2422 	.intr_handler		= qla24xx_intr_handler,
2423 	.enable_intrs		= qla24xx_enable_intrs,
2424 	.disable_intrs		= qla24xx_disable_intrs,
2425 	.abort_command		= qla24xx_abort_command,
2426 	.target_reset		= qla24xx_abort_target,
2427 	.lun_reset		= qla24xx_lun_reset,
2428 	.fabric_login		= qla24xx_login_fabric,
2429 	.fabric_logout		= qla24xx_fabric_logout,
2430 	.calc_req_entries	= NULL,
2431 	.build_iocbs		= NULL,
2432 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2433 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2434 	.read_nvram		= NULL,
2435 	.write_nvram		= NULL,
2436 	.fw_dump		= qla81xx_fw_dump,
2437 	.beacon_on		= qla24xx_beacon_on,
2438 	.beacon_off		= qla24xx_beacon_off,
2439 	.beacon_blink		= qla83xx_beacon_blink,
2440 	.read_optrom		= qla25xx_read_optrom_data,
2441 	.write_optrom		= qla24xx_write_optrom_data,
2442 	.get_flash_version	= qla24xx_get_flash_version,
2443 	.start_scsi		= qla24xx_dif_start_scsi,
2444 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2445 	.abort_isp		= qla2x00_abort_isp,
2446 	.iospace_config		= qla2x00_iospace_config,
2447 	.initialize_adapter	= qla2x00_initialize_adapter,
2448 };
2449 
2450 static struct isp_operations qla82xx_isp_ops = {
2451 	.pci_config		= qla82xx_pci_config,
2452 	.reset_chip		= qla82xx_reset_chip,
2453 	.chip_diag		= qla24xx_chip_diag,
2454 	.config_rings		= qla82xx_config_rings,
2455 	.reset_adapter		= qla24xx_reset_adapter,
2456 	.nvram_config		= qla81xx_nvram_config,
2457 	.update_fw_options	= qla24xx_update_fw_options,
2458 	.load_risc		= qla82xx_load_risc,
2459 	.pci_info_str		= qla24xx_pci_info_str,
2460 	.fw_version_str		= qla24xx_fw_version_str,
2461 	.intr_handler		= qla82xx_intr_handler,
2462 	.enable_intrs		= qla82xx_enable_intrs,
2463 	.disable_intrs		= qla82xx_disable_intrs,
2464 	.abort_command		= qla24xx_abort_command,
2465 	.target_reset		= qla24xx_abort_target,
2466 	.lun_reset		= qla24xx_lun_reset,
2467 	.fabric_login		= qla24xx_login_fabric,
2468 	.fabric_logout		= qla24xx_fabric_logout,
2469 	.calc_req_entries	= NULL,
2470 	.build_iocbs		= NULL,
2471 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2472 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2473 	.read_nvram		= qla24xx_read_nvram_data,
2474 	.write_nvram		= qla24xx_write_nvram_data,
2475 	.fw_dump		= qla82xx_fw_dump,
2476 	.beacon_on		= qla82xx_beacon_on,
2477 	.beacon_off		= qla82xx_beacon_off,
2478 	.beacon_blink		= NULL,
2479 	.read_optrom		= qla82xx_read_optrom_data,
2480 	.write_optrom		= qla82xx_write_optrom_data,
2481 	.get_flash_version	= qla82xx_get_flash_version,
2482 	.start_scsi             = qla82xx_start_scsi,
2483 	.start_scsi_mq          = NULL,
2484 	.abort_isp		= qla82xx_abort_isp,
2485 	.iospace_config     	= qla82xx_iospace_config,
2486 	.initialize_adapter	= qla2x00_initialize_adapter,
2487 };
2488 
2489 static struct isp_operations qla8044_isp_ops = {
2490 	.pci_config		= qla82xx_pci_config,
2491 	.reset_chip		= qla82xx_reset_chip,
2492 	.chip_diag		= qla24xx_chip_diag,
2493 	.config_rings		= qla82xx_config_rings,
2494 	.reset_adapter		= qla24xx_reset_adapter,
2495 	.nvram_config		= qla81xx_nvram_config,
2496 	.update_fw_options	= qla24xx_update_fw_options,
2497 	.load_risc		= qla82xx_load_risc,
2498 	.pci_info_str		= qla24xx_pci_info_str,
2499 	.fw_version_str		= qla24xx_fw_version_str,
2500 	.intr_handler		= qla8044_intr_handler,
2501 	.enable_intrs		= qla82xx_enable_intrs,
2502 	.disable_intrs		= qla82xx_disable_intrs,
2503 	.abort_command		= qla24xx_abort_command,
2504 	.target_reset		= qla24xx_abort_target,
2505 	.lun_reset		= qla24xx_lun_reset,
2506 	.fabric_login		= qla24xx_login_fabric,
2507 	.fabric_logout		= qla24xx_fabric_logout,
2508 	.calc_req_entries	= NULL,
2509 	.build_iocbs		= NULL,
2510 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2511 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2512 	.read_nvram		= NULL,
2513 	.write_nvram		= NULL,
2514 	.fw_dump		= qla8044_fw_dump,
2515 	.beacon_on		= qla82xx_beacon_on,
2516 	.beacon_off		= qla82xx_beacon_off,
2517 	.beacon_blink		= NULL,
2518 	.read_optrom		= qla8044_read_optrom_data,
2519 	.write_optrom		= qla8044_write_optrom_data,
2520 	.get_flash_version	= qla82xx_get_flash_version,
2521 	.start_scsi             = qla82xx_start_scsi,
2522 	.start_scsi_mq          = NULL,
2523 	.abort_isp		= qla8044_abort_isp,
2524 	.iospace_config		= qla82xx_iospace_config,
2525 	.initialize_adapter	= qla2x00_initialize_adapter,
2526 };
2527 
2528 static struct isp_operations qla83xx_isp_ops = {
2529 	.pci_config		= qla25xx_pci_config,
2530 	.reset_chip		= qla24xx_reset_chip,
2531 	.chip_diag		= qla24xx_chip_diag,
2532 	.config_rings		= qla24xx_config_rings,
2533 	.reset_adapter		= qla24xx_reset_adapter,
2534 	.nvram_config		= qla81xx_nvram_config,
2535 	.update_fw_options	= qla24xx_update_fw_options,
2536 	.load_risc		= qla81xx_load_risc,
2537 	.pci_info_str		= qla24xx_pci_info_str,
2538 	.fw_version_str		= qla24xx_fw_version_str,
2539 	.intr_handler		= qla24xx_intr_handler,
2540 	.enable_intrs		= qla24xx_enable_intrs,
2541 	.disable_intrs		= qla24xx_disable_intrs,
2542 	.abort_command		= qla24xx_abort_command,
2543 	.target_reset		= qla24xx_abort_target,
2544 	.lun_reset		= qla24xx_lun_reset,
2545 	.fabric_login		= qla24xx_login_fabric,
2546 	.fabric_logout		= qla24xx_fabric_logout,
2547 	.calc_req_entries	= NULL,
2548 	.build_iocbs		= NULL,
2549 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2550 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2551 	.read_nvram		= NULL,
2552 	.write_nvram		= NULL,
2553 	.fw_dump		= qla83xx_fw_dump,
2554 	.beacon_on		= qla24xx_beacon_on,
2555 	.beacon_off		= qla24xx_beacon_off,
2556 	.beacon_blink		= qla83xx_beacon_blink,
2557 	.read_optrom		= qla25xx_read_optrom_data,
2558 	.write_optrom		= qla24xx_write_optrom_data,
2559 	.get_flash_version	= qla24xx_get_flash_version,
2560 	.start_scsi		= qla24xx_dif_start_scsi,
2561 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2562 	.abort_isp		= qla2x00_abort_isp,
2563 	.iospace_config		= qla83xx_iospace_config,
2564 	.initialize_adapter	= qla2x00_initialize_adapter,
2565 };
2566 
2567 static struct isp_operations qlafx00_isp_ops = {
2568 	.pci_config		= qlafx00_pci_config,
2569 	.reset_chip		= qlafx00_soft_reset,
2570 	.chip_diag		= qlafx00_chip_diag,
2571 	.config_rings		= qlafx00_config_rings,
2572 	.reset_adapter		= qlafx00_soft_reset,
2573 	.nvram_config		= NULL,
2574 	.update_fw_options	= NULL,
2575 	.load_risc		= NULL,
2576 	.pci_info_str		= qlafx00_pci_info_str,
2577 	.fw_version_str		= qlafx00_fw_version_str,
2578 	.intr_handler		= qlafx00_intr_handler,
2579 	.enable_intrs		= qlafx00_enable_intrs,
2580 	.disable_intrs		= qlafx00_disable_intrs,
2581 	.abort_command		= qla24xx_async_abort_command,
2582 	.target_reset		= qlafx00_abort_target,
2583 	.lun_reset		= qlafx00_lun_reset,
2584 	.fabric_login		= NULL,
2585 	.fabric_logout		= NULL,
2586 	.calc_req_entries	= NULL,
2587 	.build_iocbs		= NULL,
2588 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2589 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2590 	.read_nvram		= qla24xx_read_nvram_data,
2591 	.write_nvram		= qla24xx_write_nvram_data,
2592 	.fw_dump		= NULL,
2593 	.beacon_on		= qla24xx_beacon_on,
2594 	.beacon_off		= qla24xx_beacon_off,
2595 	.beacon_blink		= NULL,
2596 	.read_optrom		= qla24xx_read_optrom_data,
2597 	.write_optrom		= qla24xx_write_optrom_data,
2598 	.get_flash_version	= qla24xx_get_flash_version,
2599 	.start_scsi		= qlafx00_start_scsi,
2600 	.start_scsi_mq          = NULL,
2601 	.abort_isp		= qlafx00_abort_isp,
2602 	.iospace_config		= qlafx00_iospace_config,
2603 	.initialize_adapter	= qlafx00_initialize_adapter,
2604 };
2605 
2606 static struct isp_operations qla27xx_isp_ops = {
2607 	.pci_config		= qla25xx_pci_config,
2608 	.reset_chip		= qla24xx_reset_chip,
2609 	.chip_diag		= qla24xx_chip_diag,
2610 	.config_rings		= qla24xx_config_rings,
2611 	.reset_adapter		= qla24xx_reset_adapter,
2612 	.nvram_config		= qla81xx_nvram_config,
2613 	.update_fw_options	= qla24xx_update_fw_options,
2614 	.load_risc		= qla81xx_load_risc,
2615 	.pci_info_str		= qla24xx_pci_info_str,
2616 	.fw_version_str		= qla24xx_fw_version_str,
2617 	.intr_handler		= qla24xx_intr_handler,
2618 	.enable_intrs		= qla24xx_enable_intrs,
2619 	.disable_intrs		= qla24xx_disable_intrs,
2620 	.abort_command		= qla24xx_abort_command,
2621 	.target_reset		= qla24xx_abort_target,
2622 	.lun_reset		= qla24xx_lun_reset,
2623 	.fabric_login		= qla24xx_login_fabric,
2624 	.fabric_logout		= qla24xx_fabric_logout,
2625 	.calc_req_entries	= NULL,
2626 	.build_iocbs		= NULL,
2627 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2628 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2629 	.read_nvram		= NULL,
2630 	.write_nvram		= NULL,
2631 	.fw_dump		= qla27xx_fwdump,
2632 	.mpi_fw_dump		= qla27xx_mpi_fwdump,
2633 	.beacon_on		= qla24xx_beacon_on,
2634 	.beacon_off		= qla24xx_beacon_off,
2635 	.beacon_blink		= qla83xx_beacon_blink,
2636 	.read_optrom		= qla25xx_read_optrom_data,
2637 	.write_optrom		= qla24xx_write_optrom_data,
2638 	.get_flash_version	= qla24xx_get_flash_version,
2639 	.start_scsi		= qla24xx_dif_start_scsi,
2640 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2641 	.abort_isp		= qla2x00_abort_isp,
2642 	.iospace_config		= qla83xx_iospace_config,
2643 	.initialize_adapter	= qla2x00_initialize_adapter,
2644 };
2645 
2646 static inline void
2647 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2648 {
2649 	ha->device_type = DT_EXTENDED_IDS;
2650 	switch (ha->pdev->device) {
2651 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2652 		ha->isp_type |= DT_ISP2100;
2653 		ha->device_type &= ~DT_EXTENDED_IDS;
2654 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2655 		break;
2656 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2657 		ha->isp_type |= DT_ISP2200;
2658 		ha->device_type &= ~DT_EXTENDED_IDS;
2659 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2660 		break;
2661 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2662 		ha->isp_type |= DT_ISP2300;
2663 		ha->device_type |= DT_ZIO_SUPPORTED;
2664 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2665 		break;
2666 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2667 		ha->isp_type |= DT_ISP2312;
2668 		ha->device_type |= DT_ZIO_SUPPORTED;
2669 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2670 		break;
2671 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2672 		ha->isp_type |= DT_ISP2322;
2673 		ha->device_type |= DT_ZIO_SUPPORTED;
2674 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2675 		    ha->pdev->subsystem_device == 0x0170)
2676 			ha->device_type |= DT_OEM_001;
2677 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2678 		break;
2679 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2680 		ha->isp_type |= DT_ISP6312;
2681 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2682 		break;
2683 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2684 		ha->isp_type |= DT_ISP6322;
2685 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2686 		break;
2687 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2688 		ha->isp_type |= DT_ISP2422;
2689 		ha->device_type |= DT_ZIO_SUPPORTED;
2690 		ha->device_type |= DT_FWI2;
2691 		ha->device_type |= DT_IIDMA;
2692 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2693 		break;
2694 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2695 		ha->isp_type |= DT_ISP2432;
2696 		ha->device_type |= DT_ZIO_SUPPORTED;
2697 		ha->device_type |= DT_FWI2;
2698 		ha->device_type |= DT_IIDMA;
2699 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2700 		break;
2701 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2702 		ha->isp_type |= DT_ISP8432;
2703 		ha->device_type |= DT_ZIO_SUPPORTED;
2704 		ha->device_type |= DT_FWI2;
2705 		ha->device_type |= DT_IIDMA;
2706 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2707 		break;
2708 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2709 		ha->isp_type |= DT_ISP5422;
2710 		ha->device_type |= DT_FWI2;
2711 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2712 		break;
2713 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2714 		ha->isp_type |= DT_ISP5432;
2715 		ha->device_type |= DT_FWI2;
2716 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2717 		break;
2718 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2719 		ha->isp_type |= DT_ISP2532;
2720 		ha->device_type |= DT_ZIO_SUPPORTED;
2721 		ha->device_type |= DT_FWI2;
2722 		ha->device_type |= DT_IIDMA;
2723 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2724 		break;
2725 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2726 		ha->isp_type |= DT_ISP8001;
2727 		ha->device_type |= DT_ZIO_SUPPORTED;
2728 		ha->device_type |= DT_FWI2;
2729 		ha->device_type |= DT_IIDMA;
2730 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2731 		break;
2732 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2733 		ha->isp_type |= DT_ISP8021;
2734 		ha->device_type |= DT_ZIO_SUPPORTED;
2735 		ha->device_type |= DT_FWI2;
2736 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2737 		/* Initialize 82XX ISP flags */
2738 		qla82xx_init_flags(ha);
2739 		break;
2740 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2741 		ha->isp_type |= DT_ISP8044;
2742 		ha->device_type |= DT_ZIO_SUPPORTED;
2743 		ha->device_type |= DT_FWI2;
2744 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2745 		/* Initialize 82XX ISP flags */
2746 		qla82xx_init_flags(ha);
2747 		break;
2748 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2749 		ha->isp_type |= DT_ISP2031;
2750 		ha->device_type |= DT_ZIO_SUPPORTED;
2751 		ha->device_type |= DT_FWI2;
2752 		ha->device_type |= DT_IIDMA;
2753 		ha->device_type |= DT_T10_PI;
2754 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2755 		break;
2756 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2757 		ha->isp_type |= DT_ISP8031;
2758 		ha->device_type |= DT_ZIO_SUPPORTED;
2759 		ha->device_type |= DT_FWI2;
2760 		ha->device_type |= DT_IIDMA;
2761 		ha->device_type |= DT_T10_PI;
2762 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2763 		break;
2764 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2765 		ha->isp_type |= DT_ISPFX00;
2766 		break;
2767 	case PCI_DEVICE_ID_QLOGIC_ISP2071:
2768 		ha->isp_type |= DT_ISP2071;
2769 		ha->device_type |= DT_ZIO_SUPPORTED;
2770 		ha->device_type |= DT_FWI2;
2771 		ha->device_type |= DT_IIDMA;
2772 		ha->device_type |= DT_T10_PI;
2773 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2774 		break;
2775 	case PCI_DEVICE_ID_QLOGIC_ISP2271:
2776 		ha->isp_type |= DT_ISP2271;
2777 		ha->device_type |= DT_ZIO_SUPPORTED;
2778 		ha->device_type |= DT_FWI2;
2779 		ha->device_type |= DT_IIDMA;
2780 		ha->device_type |= DT_T10_PI;
2781 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2782 		break;
2783 	case PCI_DEVICE_ID_QLOGIC_ISP2261:
2784 		ha->isp_type |= DT_ISP2261;
2785 		ha->device_type |= DT_ZIO_SUPPORTED;
2786 		ha->device_type |= DT_FWI2;
2787 		ha->device_type |= DT_IIDMA;
2788 		ha->device_type |= DT_T10_PI;
2789 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2790 		break;
2791 	case PCI_DEVICE_ID_QLOGIC_ISP2081:
2792 	case PCI_DEVICE_ID_QLOGIC_ISP2089:
2793 		ha->isp_type |= DT_ISP2081;
2794 		ha->device_type |= DT_ZIO_SUPPORTED;
2795 		ha->device_type |= DT_FWI2;
2796 		ha->device_type |= DT_IIDMA;
2797 		ha->device_type |= DT_T10_PI;
2798 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2799 		break;
2800 	case PCI_DEVICE_ID_QLOGIC_ISP2281:
2801 	case PCI_DEVICE_ID_QLOGIC_ISP2289:
2802 		ha->isp_type |= DT_ISP2281;
2803 		ha->device_type |= DT_ZIO_SUPPORTED;
2804 		ha->device_type |= DT_FWI2;
2805 		ha->device_type |= DT_IIDMA;
2806 		ha->device_type |= DT_T10_PI;
2807 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2808 		break;
2809 	}
2810 
2811 	if (IS_QLA82XX(ha))
2812 		ha->port_no = ha->portnum & 1;
2813 	else {
2814 		/* Get adapter physical port no from interrupt pin register. */
2815 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2816 		if (IS_QLA25XX(ha) || IS_QLA2031(ha) ||
2817 		    IS_QLA27XX(ha) || IS_QLA28XX(ha))
2818 			ha->port_no--;
2819 		else
2820 			ha->port_no = !(ha->port_no & 1);
2821 	}
2822 
2823 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2824 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2825 	    ha->device_type, ha->port_no, ha->fw_srisc_address);
2826 }
2827 
2828 static void
2829 qla2xxx_scan_start(struct Scsi_Host *shost)
2830 {
2831 	scsi_qla_host_t *vha = shost_priv(shost);
2832 
2833 	if (vha->hw->flags.running_gold_fw)
2834 		return;
2835 
2836 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2837 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2838 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2839 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2840 }
2841 
2842 static int
2843 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2844 {
2845 	scsi_qla_host_t *vha = shost_priv(shost);
2846 
2847 	if (test_bit(UNLOADING, &vha->dpc_flags))
2848 		return 1;
2849 	if (!vha->host)
2850 		return 1;
2851 	if (time > vha->hw->loop_reset_delay * HZ)
2852 		return 1;
2853 
2854 	return atomic_read(&vha->loop_state) == LOOP_READY;
2855 }
2856 
2857 static void qla_heartbeat_work_fn(struct work_struct *work)
2858 {
2859 	struct qla_hw_data *ha = container_of(work,
2860 		struct qla_hw_data, heartbeat_work);
2861 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2862 
2863 	if (!ha->flags.mbox_busy && base_vha->flags.init_done)
2864 		qla_no_op_mb(base_vha);
2865 }
2866 
2867 static void qla2x00_iocb_work_fn(struct work_struct *work)
2868 {
2869 	struct scsi_qla_host *vha = container_of(work,
2870 		struct scsi_qla_host, iocb_work);
2871 	struct qla_hw_data *ha = vha->hw;
2872 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2873 	int i = 2;
2874 	unsigned long flags;
2875 
2876 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
2877 		return;
2878 
2879 	while (!list_empty(&vha->work_list) && i > 0) {
2880 		qla2x00_do_work(vha);
2881 		i--;
2882 	}
2883 
2884 	spin_lock_irqsave(&vha->work_lock, flags);
2885 	clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
2886 	spin_unlock_irqrestore(&vha->work_lock, flags);
2887 }
2888 
2889 static void
2890 qla_trace_init(void)
2891 {
2892 	qla_trc_array = trace_array_get_by_name("qla2xxx", NULL);
2893 	if (!qla_trc_array) {
2894 		ql_log(ql_log_fatal, NULL, 0x0001,
2895 		       "Unable to create qla2xxx trace instance, instance logging will be disabled.\n");
2896 		return;
2897 	}
2898 
2899 	QLA_TRACE_ENABLE(qla_trc_array);
2900 }
2901 
2902 static void
2903 qla_trace_uninit(void)
2904 {
2905 	if (!qla_trc_array)
2906 		return;
2907 	trace_array_put(qla_trc_array);
2908 }
2909 
2910 /*
2911  * PCI driver interface
2912  */
2913 static int
2914 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2915 {
2916 	int	ret = -ENODEV;
2917 	struct Scsi_Host *host;
2918 	scsi_qla_host_t *base_vha = NULL;
2919 	struct qla_hw_data *ha;
2920 	char pci_info[30];
2921 	char fw_str[30], wq_name[30];
2922 	struct scsi_host_template *sht;
2923 	int bars, mem_only = 0;
2924 	uint16_t req_length = 0, rsp_length = 0;
2925 	struct req_que *req = NULL;
2926 	struct rsp_que *rsp = NULL;
2927 	int i;
2928 
2929 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2930 	sht = &qla2xxx_driver_template;
2931 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2932 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2933 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2934 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2935 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2936 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2937 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2938 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2939 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2940 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2941 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2942 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
2943 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
2944 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
2945 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261 ||
2946 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2081 ||
2947 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2281 ||
2948 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2089 ||
2949 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2289) {
2950 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2951 		mem_only = 1;
2952 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2953 		    "Mem only adapter.\n");
2954 	}
2955 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2956 	    "Bars=%d.\n", bars);
2957 
2958 	if (mem_only) {
2959 		if (pci_enable_device_mem(pdev))
2960 			return ret;
2961 	} else {
2962 		if (pci_enable_device(pdev))
2963 			return ret;
2964 	}
2965 
2966 	if (is_kdump_kernel()) {
2967 		ql2xmqsupport = 0;
2968 		ql2xallocfwdump = 0;
2969 	}
2970 
2971 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2972 	if (!ha) {
2973 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2974 		    "Unable to allocate memory for ha.\n");
2975 		goto disable_device;
2976 	}
2977 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2978 	    "Memory allocated for ha=%p.\n", ha);
2979 	ha->pdev = pdev;
2980 	INIT_LIST_HEAD(&ha->tgt.q_full_list);
2981 	spin_lock_init(&ha->tgt.q_full_lock);
2982 	spin_lock_init(&ha->tgt.sess_lock);
2983 	spin_lock_init(&ha->tgt.atio_lock);
2984 
2985 	spin_lock_init(&ha->sadb_lock);
2986 	INIT_LIST_HEAD(&ha->sadb_tx_index_list);
2987 	INIT_LIST_HEAD(&ha->sadb_rx_index_list);
2988 
2989 	spin_lock_init(&ha->sadb_fp_lock);
2990 
2991 	if (qla_edif_sadb_build_free_pool(ha)) {
2992 		kfree(ha);
2993 		goto  disable_device;
2994 	}
2995 
2996 	atomic_set(&ha->nvme_active_aen_cnt, 0);
2997 
2998 	/* Clear our data area */
2999 	ha->bars = bars;
3000 	ha->mem_only = mem_only;
3001 	spin_lock_init(&ha->hardware_lock);
3002 	spin_lock_init(&ha->vport_slock);
3003 	mutex_init(&ha->selflogin_lock);
3004 	mutex_init(&ha->optrom_mutex);
3005 
3006 	/* Set ISP-type information. */
3007 	qla2x00_set_isp_flags(ha);
3008 
3009 	/* Set EEH reset type to fundamental if required by hba */
3010 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
3011 	    IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3012 		pdev->needs_freset = 1;
3013 
3014 	ha->prev_topology = 0;
3015 	ha->init_cb_size = sizeof(init_cb_t);
3016 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
3017 	ha->optrom_size = OPTROM_SIZE_2300;
3018 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
3019 	atomic_set(&ha->num_pend_mbx_stage1, 0);
3020 	atomic_set(&ha->num_pend_mbx_stage2, 0);
3021 	atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
3022 	ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
3023 	INIT_LIST_HEAD(&ha->tmf_pending);
3024 	INIT_LIST_HEAD(&ha->tmf_active);
3025 
3026 	/* Assign ISP specific operations. */
3027 	if (IS_QLA2100(ha)) {
3028 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
3029 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
3030 		req_length = REQUEST_ENTRY_CNT_2100;
3031 		rsp_length = RESPONSE_ENTRY_CNT_2100;
3032 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
3033 		ha->gid_list_info_size = 4;
3034 		ha->flash_conf_off = ~0;
3035 		ha->flash_data_off = ~0;
3036 		ha->nvram_conf_off = ~0;
3037 		ha->nvram_data_off = ~0;
3038 		ha->isp_ops = &qla2100_isp_ops;
3039 	} else if (IS_QLA2200(ha)) {
3040 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
3041 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
3042 		req_length = REQUEST_ENTRY_CNT_2200;
3043 		rsp_length = RESPONSE_ENTRY_CNT_2100;
3044 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
3045 		ha->gid_list_info_size = 4;
3046 		ha->flash_conf_off = ~0;
3047 		ha->flash_data_off = ~0;
3048 		ha->nvram_conf_off = ~0;
3049 		ha->nvram_data_off = ~0;
3050 		ha->isp_ops = &qla2100_isp_ops;
3051 	} else if (IS_QLA23XX(ha)) {
3052 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
3053 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3054 		req_length = REQUEST_ENTRY_CNT_2200;
3055 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3056 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3057 		ha->gid_list_info_size = 6;
3058 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
3059 			ha->optrom_size = OPTROM_SIZE_2322;
3060 		ha->flash_conf_off = ~0;
3061 		ha->flash_data_off = ~0;
3062 		ha->nvram_conf_off = ~0;
3063 		ha->nvram_data_off = ~0;
3064 		ha->isp_ops = &qla2300_isp_ops;
3065 	} else if (IS_QLA24XX_TYPE(ha)) {
3066 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3067 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3068 		req_length = REQUEST_ENTRY_CNT_24XX;
3069 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3070 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3071 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3072 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3073 		ha->gid_list_info_size = 8;
3074 		ha->optrom_size = OPTROM_SIZE_24XX;
3075 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
3076 		ha->isp_ops = &qla24xx_isp_ops;
3077 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3078 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3079 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3080 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3081 	} else if (IS_QLA25XX(ha)) {
3082 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3083 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3084 		req_length = REQUEST_ENTRY_CNT_24XX;
3085 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3086 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3087 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3088 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3089 		ha->gid_list_info_size = 8;
3090 		ha->optrom_size = OPTROM_SIZE_25XX;
3091 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3092 		ha->isp_ops = &qla25xx_isp_ops;
3093 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3094 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3095 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3096 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3097 	} else if (IS_QLA81XX(ha)) {
3098 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3099 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3100 		req_length = REQUEST_ENTRY_CNT_24XX;
3101 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3102 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3103 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3104 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3105 		ha->gid_list_info_size = 8;
3106 		ha->optrom_size = OPTROM_SIZE_81XX;
3107 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3108 		ha->isp_ops = &qla81xx_isp_ops;
3109 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3110 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3111 		ha->nvram_conf_off = ~0;
3112 		ha->nvram_data_off = ~0;
3113 	} else if (IS_QLA82XX(ha)) {
3114 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3115 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3116 		req_length = REQUEST_ENTRY_CNT_82XX;
3117 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3118 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3119 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3120 		ha->gid_list_info_size = 8;
3121 		ha->optrom_size = OPTROM_SIZE_82XX;
3122 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3123 		ha->isp_ops = &qla82xx_isp_ops;
3124 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3125 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3126 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3127 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3128 	} else if (IS_QLA8044(ha)) {
3129 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3130 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3131 		req_length = REQUEST_ENTRY_CNT_82XX;
3132 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3133 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3134 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3135 		ha->gid_list_info_size = 8;
3136 		ha->optrom_size = OPTROM_SIZE_83XX;
3137 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3138 		ha->isp_ops = &qla8044_isp_ops;
3139 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3140 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3141 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3142 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3143 	} else if (IS_QLA83XX(ha)) {
3144 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3145 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3146 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3147 		req_length = REQUEST_ENTRY_CNT_83XX;
3148 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3149 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3150 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3151 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3152 		ha->gid_list_info_size = 8;
3153 		ha->optrom_size = OPTROM_SIZE_83XX;
3154 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3155 		ha->isp_ops = &qla83xx_isp_ops;
3156 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3157 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3158 		ha->nvram_conf_off = ~0;
3159 		ha->nvram_data_off = ~0;
3160 	}  else if (IS_QLAFX00(ha)) {
3161 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
3162 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
3163 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
3164 		req_length = REQUEST_ENTRY_CNT_FX00;
3165 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
3166 		ha->isp_ops = &qlafx00_isp_ops;
3167 		ha->port_down_retry_count = 30; /* default value */
3168 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
3169 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
3170 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
3171 		ha->mr.fw_hbt_en = 1;
3172 		ha->mr.host_info_resend = false;
3173 		ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
3174 	} else if (IS_QLA27XX(ha)) {
3175 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3176 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3177 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3178 		req_length = REQUEST_ENTRY_CNT_83XX;
3179 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3180 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3181 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3182 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3183 		ha->gid_list_info_size = 8;
3184 		ha->optrom_size = OPTROM_SIZE_83XX;
3185 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3186 		ha->isp_ops = &qla27xx_isp_ops;
3187 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3188 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3189 		ha->nvram_conf_off = ~0;
3190 		ha->nvram_data_off = ~0;
3191 	} else if (IS_QLA28XX(ha)) {
3192 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3193 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3194 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3195 		req_length = REQUEST_ENTRY_CNT_83XX;
3196 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3197 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3198 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3199 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3200 		ha->gid_list_info_size = 8;
3201 		ha->optrom_size = OPTROM_SIZE_28XX;
3202 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3203 		ha->isp_ops = &qla27xx_isp_ops;
3204 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_28XX;
3205 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_28XX;
3206 		ha->nvram_conf_off = ~0;
3207 		ha->nvram_data_off = ~0;
3208 	}
3209 
3210 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
3211 	    "mbx_count=%d, req_length=%d, "
3212 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
3213 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
3214 	    "max_fibre_devices=%d.\n",
3215 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
3216 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
3217 	    ha->nvram_npiv_size, ha->max_fibre_devices);
3218 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
3219 	    "isp_ops=%p, flash_conf_off=%d, "
3220 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
3221 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
3222 	    ha->nvram_conf_off, ha->nvram_data_off);
3223 
3224 	/* Configure PCI I/O space */
3225 	ret = ha->isp_ops->iospace_config(ha);
3226 	if (ret)
3227 		goto iospace_config_failed;
3228 
3229 	ql_log_pci(ql_log_info, pdev, 0x001d,
3230 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
3231 	    pdev->device, pdev->irq, ha->iobase);
3232 	mutex_init(&ha->vport_lock);
3233 	mutex_init(&ha->mq_lock);
3234 	init_completion(&ha->mbx_cmd_comp);
3235 	complete(&ha->mbx_cmd_comp);
3236 	init_completion(&ha->mbx_intr_comp);
3237 	init_completion(&ha->dcbx_comp);
3238 	init_completion(&ha->lb_portup_comp);
3239 
3240 	set_bit(0, (unsigned long *) ha->vp_idx_map);
3241 
3242 	qla2x00_config_dma_addressing(ha);
3243 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
3244 	    "64 Bit addressing is %s.\n",
3245 	    ha->flags.enable_64bit_addressing ? "enable" :
3246 	    "disable");
3247 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
3248 	if (ret) {
3249 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
3250 		    "Failed to allocate memory for adapter, aborting.\n");
3251 
3252 		goto probe_hw_failed;
3253 	}
3254 
3255 	req->max_q_depth = MAX_Q_DEPTH;
3256 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
3257 		req->max_q_depth = ql2xmaxqdepth;
3258 
3259 
3260 	base_vha = qla2x00_create_host(sht, ha);
3261 	if (!base_vha) {
3262 		ret = -ENOMEM;
3263 		goto probe_hw_failed;
3264 	}
3265 
3266 	pci_set_drvdata(pdev, base_vha);
3267 	set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3268 
3269 	host = base_vha->host;
3270 	base_vha->req = req;
3271 	if (IS_QLA2XXX_MIDTYPE(ha))
3272 		base_vha->mgmt_svr_loop_id =
3273 			qla2x00_reserve_mgmt_server_loop_id(base_vha);
3274 	else
3275 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
3276 						base_vha->vp_idx;
3277 
3278 	/* Setup fcport template structure. */
3279 	ha->mr.fcport.vha = base_vha;
3280 	ha->mr.fcport.port_type = FCT_UNKNOWN;
3281 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
3282 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
3283 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
3284 	ha->mr.fcport.scan_state = 1;
3285 
3286 	qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
3287 			    QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
3288 			    QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
3289 
3290 	/* Set the SG table size based on ISP type */
3291 	if (!IS_FWI2_CAPABLE(ha)) {
3292 		if (IS_QLA2100(ha))
3293 			host->sg_tablesize = 32;
3294 	} else {
3295 		if (!IS_QLA82XX(ha))
3296 			host->sg_tablesize = QLA_SG_ALL;
3297 	}
3298 	host->max_id = ha->max_fibre_devices;
3299 	host->cmd_per_lun = 3;
3300 	host->unique_id = host->host_no;
3301 
3302 	if (ql2xenabledif && ql2xenabledif != 2) {
3303 		ql_log(ql_log_warn, base_vha, 0x302d,
3304 		       "Invalid value for ql2xenabledif, resetting it to default (2)\n");
3305 		ql2xenabledif = 2;
3306 	}
3307 
3308 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
3309 		host->max_cmd_len = 32;
3310 	else
3311 		host->max_cmd_len = MAX_CMDSZ;
3312 	host->max_channel = MAX_BUSES - 1;
3313 	/* Older HBAs support only 16-bit LUNs */
3314 	if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
3315 	    ql2xmaxlun > 0xffff)
3316 		host->max_lun = 0xffff;
3317 	else
3318 		host->max_lun = ql2xmaxlun;
3319 	host->transportt = qla2xxx_transport_template;
3320 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
3321 
3322 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
3323 	    "max_id=%d this_id=%d "
3324 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
3325 	    "max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
3326 	    host->this_id, host->cmd_per_lun, host->unique_id,
3327 	    host->max_cmd_len, host->max_channel, host->max_lun,
3328 	    host->transportt, sht->vendor_id);
3329 
3330 	INIT_WORK(&ha->heartbeat_work, qla_heartbeat_work_fn);
3331 
3332 	/* Set up the irqs */
3333 	ret = qla2x00_request_irqs(ha, rsp);
3334 	if (ret)
3335 		goto probe_failed;
3336 
3337 	/* Alloc arrays of request and response ring ptrs */
3338 	ret = qla2x00_alloc_queues(ha, req, rsp);
3339 	if (ret) {
3340 		ql_log(ql_log_fatal, base_vha, 0x003d,
3341 		    "Failed to allocate memory for queue pointers..."
3342 		    "aborting.\n");
3343 		ret = -ENODEV;
3344 		goto probe_failed;
3345 	}
3346 
3347 	if (ha->mqenable) {
3348 		/* number of hardware queues supported by blk/scsi-mq*/
3349 		host->nr_hw_queues = ha->max_qpairs;
3350 
3351 		ql_dbg(ql_dbg_init, base_vha, 0x0192,
3352 			"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
3353 	} else {
3354 		if (ql2xnvmeenable) {
3355 			host->nr_hw_queues = ha->max_qpairs;
3356 			ql_dbg(ql_dbg_init, base_vha, 0x0194,
3357 			    "FC-NVMe support is enabled, HW queues=%d\n",
3358 			    host->nr_hw_queues);
3359 		} else {
3360 			ql_dbg(ql_dbg_init, base_vha, 0x0193,
3361 			    "blk/scsi-mq disabled.\n");
3362 		}
3363 	}
3364 
3365 	qlt_probe_one_stage1(base_vha, ha);
3366 
3367 	pci_save_state(pdev);
3368 
3369 	/* Assign back pointers */
3370 	rsp->req = req;
3371 	req->rsp = rsp;
3372 
3373 	if (IS_QLAFX00(ha)) {
3374 		ha->rsp_q_map[0] = rsp;
3375 		ha->req_q_map[0] = req;
3376 		set_bit(0, ha->req_qid_map);
3377 		set_bit(0, ha->rsp_qid_map);
3378 	}
3379 
3380 	/* FWI2-capable only. */
3381 	req->req_q_in = &ha->iobase->isp24.req_q_in;
3382 	req->req_q_out = &ha->iobase->isp24.req_q_out;
3383 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
3384 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
3385 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3386 	    IS_QLA28XX(ha)) {
3387 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
3388 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
3389 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
3390 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
3391 	}
3392 
3393 	if (IS_QLAFX00(ha)) {
3394 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
3395 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
3396 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
3397 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
3398 	}
3399 
3400 	if (IS_P3P_TYPE(ha)) {
3401 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
3402 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
3403 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
3404 	}
3405 
3406 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
3407 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3408 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3409 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
3410 	    "req->req_q_in=%p req->req_q_out=%p "
3411 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3412 	    req->req_q_in, req->req_q_out,
3413 	    rsp->rsp_q_in, rsp->rsp_q_out);
3414 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
3415 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3416 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3417 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
3418 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3419 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
3420 
3421 	ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
3422 	if (unlikely(!ha->wq)) {
3423 		ret = -ENOMEM;
3424 		goto probe_failed;
3425 	}
3426 
3427 	if (ha->isp_ops->initialize_adapter(base_vha)) {
3428 		ql_log(ql_log_fatal, base_vha, 0x00d6,
3429 		    "Failed to initialize adapter - Adapter flags %x.\n",
3430 		    base_vha->device_flags);
3431 
3432 		if (IS_QLA82XX(ha)) {
3433 			qla82xx_idc_lock(ha);
3434 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3435 				QLA8XXX_DEV_FAILED);
3436 			qla82xx_idc_unlock(ha);
3437 			ql_log(ql_log_fatal, base_vha, 0x00d7,
3438 			    "HW State: FAILED.\n");
3439 		} else if (IS_QLA8044(ha)) {
3440 			qla8044_idc_lock(ha);
3441 			qla8044_wr_direct(base_vha,
3442 				QLA8044_CRB_DEV_STATE_INDEX,
3443 				QLA8XXX_DEV_FAILED);
3444 			qla8044_idc_unlock(ha);
3445 			ql_log(ql_log_fatal, base_vha, 0x0150,
3446 			    "HW State: FAILED.\n");
3447 		}
3448 
3449 		ret = -ENODEV;
3450 		goto probe_failed;
3451 	}
3452 
3453 	if (IS_QLAFX00(ha))
3454 		host->can_queue = QLAFX00_MAX_CANQUEUE;
3455 	else
3456 		host->can_queue = req->num_outstanding_cmds - 10;
3457 
3458 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
3459 	    "can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
3460 	    host->can_queue, base_vha->req,
3461 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
3462 
3463 	/* Check if FW supports MQ or not for ISP25xx */
3464 	if (IS_QLA25XX(ha) && !(ha->fw_attributes & BIT_6))
3465 		ha->mqenable = 0;
3466 
3467 	if (ha->mqenable) {
3468 		bool startit = false;
3469 
3470 		if (QLA_TGT_MODE_ENABLED())
3471 			startit = false;
3472 
3473 		if (ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED)
3474 			startit = true;
3475 
3476 		/* Create start of day qpairs for Block MQ */
3477 		for (i = 0; i < ha->max_qpairs; i++)
3478 			qla2xxx_create_qpair(base_vha, 5, 0, startit);
3479 	}
3480 	qla_init_iocb_limit(base_vha);
3481 
3482 	if (ha->flags.running_gold_fw)
3483 		goto skip_dpc;
3484 
3485 	/*
3486 	 * Startup the kernel thread for this host adapter
3487 	 */
3488 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
3489 	    "%s_dpc", base_vha->host_str);
3490 	if (IS_ERR(ha->dpc_thread)) {
3491 		ql_log(ql_log_fatal, base_vha, 0x00ed,
3492 		    "Failed to start DPC thread.\n");
3493 		ret = PTR_ERR(ha->dpc_thread);
3494 		ha->dpc_thread = NULL;
3495 		goto probe_failed;
3496 	}
3497 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
3498 	    "DPC thread started successfully.\n");
3499 
3500 	/*
3501 	 * If we're not coming up in initiator mode, we might sit for
3502 	 * a while without waking up the dpc thread, which leads to a
3503 	 * stuck process warning.  So just kick the dpc once here and
3504 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
3505 	 */
3506 	qla2xxx_wake_dpc(base_vha);
3507 
3508 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
3509 
3510 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
3511 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
3512 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
3513 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
3514 
3515 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
3516 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
3517 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
3518 		INIT_WORK(&ha->idc_state_handler,
3519 		    qla83xx_idc_state_handler_work);
3520 		INIT_WORK(&ha->nic_core_unrecoverable,
3521 		    qla83xx_nic_core_unrecoverable_work);
3522 	}
3523 
3524 skip_dpc:
3525 	list_add_tail(&base_vha->list, &ha->vp_list);
3526 	base_vha->host->irq = ha->pdev->irq;
3527 
3528 	/* Initialized the timer */
3529 	qla2x00_start_timer(base_vha, WATCH_INTERVAL);
3530 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
3531 	    "Started qla2x00_timer with "
3532 	    "interval=%d.\n", WATCH_INTERVAL);
3533 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
3534 	    "Detected hba at address=%p.\n",
3535 	    ha);
3536 
3537 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
3538 		if (ha->fw_attributes & BIT_4) {
3539 			int prot = 0, guard;
3540 
3541 			base_vha->flags.difdix_supported = 1;
3542 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
3543 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3544 			if (ql2xprotmask)
3545 				scsi_host_set_prot(host, ql2xprotmask);
3546 			else
3547 				scsi_host_set_prot(host,
3548 				    prot | SHOST_DIF_TYPE1_PROTECTION
3549 				    | SHOST_DIF_TYPE2_PROTECTION
3550 				    | SHOST_DIF_TYPE3_PROTECTION
3551 				    | SHOST_DIX_TYPE1_PROTECTION
3552 				    | SHOST_DIX_TYPE2_PROTECTION
3553 				    | SHOST_DIX_TYPE3_PROTECTION);
3554 
3555 			guard = SHOST_DIX_GUARD_CRC;
3556 
3557 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
3558 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
3559 				guard |= SHOST_DIX_GUARD_IP;
3560 
3561 			if (ql2xprotguard)
3562 				scsi_host_set_guard(host, ql2xprotguard);
3563 			else
3564 				scsi_host_set_guard(host, guard);
3565 		} else
3566 			base_vha->flags.difdix_supported = 0;
3567 	}
3568 
3569 	ha->isp_ops->enable_intrs(ha);
3570 
3571 	if (IS_QLAFX00(ha)) {
3572 		ret = qlafx00_fx_disc(base_vha,
3573 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
3574 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
3575 		    QLA_SG_ALL : 128;
3576 	}
3577 
3578 	ret = scsi_add_host(host, &pdev->dev);
3579 	if (ret)
3580 		goto probe_failed;
3581 
3582 	base_vha->flags.init_done = 1;
3583 	base_vha->flags.online = 1;
3584 	ha->prev_minidump_failed = 0;
3585 
3586 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
3587 	    "Init done and hba is online.\n");
3588 
3589 	if (qla_ini_mode_enabled(base_vha) ||
3590 		qla_dual_mode_enabled(base_vha))
3591 		scsi_scan_host(host);
3592 	else
3593 		ql_log(ql_log_info, base_vha, 0x0122,
3594 			"skipping scsi_scan_host() for non-initiator port\n");
3595 
3596 	qla2x00_alloc_sysfs_attr(base_vha);
3597 
3598 	if (IS_QLAFX00(ha)) {
3599 		ret = qlafx00_fx_disc(base_vha,
3600 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
3601 
3602 		/* Register system information */
3603 		ret =  qlafx00_fx_disc(base_vha,
3604 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
3605 	}
3606 
3607 	qla2x00_init_host_attr(base_vha);
3608 
3609 	qla2x00_dfs_setup(base_vha);
3610 
3611 	ql_log(ql_log_info, base_vha, 0x00fb,
3612 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
3613 	ql_log(ql_log_info, base_vha, 0x00fc,
3614 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
3615 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info,
3616 						       sizeof(pci_info)),
3617 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
3618 	    base_vha->host_no,
3619 	    ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
3620 
3621 	qlt_add_target(ha, base_vha);
3622 
3623 	clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3624 
3625 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3626 		return -ENODEV;
3627 
3628 	return 0;
3629 
3630 probe_failed:
3631 	qla_enode_stop(base_vha);
3632 	qla_edb_stop(base_vha);
3633 	vfree(base_vha->scan.l);
3634 	if (base_vha->gnl.l) {
3635 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3636 				base_vha->gnl.l, base_vha->gnl.ldma);
3637 		base_vha->gnl.l = NULL;
3638 	}
3639 
3640 	if (base_vha->timer_active)
3641 		qla2x00_stop_timer(base_vha);
3642 	base_vha->flags.online = 0;
3643 	if (ha->dpc_thread) {
3644 		struct task_struct *t = ha->dpc_thread;
3645 
3646 		ha->dpc_thread = NULL;
3647 		kthread_stop(t);
3648 	}
3649 
3650 	qla2x00_free_device(base_vha);
3651 	scsi_host_put(base_vha->host);
3652 	/*
3653 	 * Need to NULL out local req/rsp after
3654 	 * qla2x00_free_device => qla2x00_free_queues frees
3655 	 * what these are pointing to. Or else we'll
3656 	 * fall over below in qla2x00_free_req/rsp_que.
3657 	 */
3658 	req = NULL;
3659 	rsp = NULL;
3660 
3661 probe_hw_failed:
3662 	qla2x00_mem_free(ha);
3663 	qla2x00_free_req_que(ha, req);
3664 	qla2x00_free_rsp_que(ha, rsp);
3665 	qla2x00_clear_drv_active(ha);
3666 
3667 iospace_config_failed:
3668 	if (IS_P3P_TYPE(ha)) {
3669 		if (!ha->nx_pcibase)
3670 			iounmap((device_reg_t *)ha->nx_pcibase);
3671 		if (!ql2xdbwr)
3672 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3673 	} else {
3674 		if (ha->iobase)
3675 			iounmap(ha->iobase);
3676 		if (ha->cregbase)
3677 			iounmap(ha->cregbase);
3678 	}
3679 	pci_release_selected_regions(ha->pdev, ha->bars);
3680 	kfree(ha);
3681 
3682 disable_device:
3683 	pci_disable_device(pdev);
3684 	return ret;
3685 }
3686 
3687 static void __qla_set_remove_flag(scsi_qla_host_t *base_vha)
3688 {
3689 	scsi_qla_host_t *vp;
3690 	unsigned long flags;
3691 	struct qla_hw_data *ha;
3692 
3693 	if (!base_vha)
3694 		return;
3695 
3696 	ha = base_vha->hw;
3697 
3698 	spin_lock_irqsave(&ha->vport_slock, flags);
3699 	list_for_each_entry(vp, &ha->vp_list, list)
3700 		set_bit(PFLG_DRIVER_REMOVING, &vp->pci_flags);
3701 
3702 	/*
3703 	 * Indicate device removal to prevent future board_disable
3704 	 * and wait until any pending board_disable has completed.
3705 	 */
3706 	set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
3707 	spin_unlock_irqrestore(&ha->vport_slock, flags);
3708 }
3709 
3710 static void
3711 qla2x00_shutdown(struct pci_dev *pdev)
3712 {
3713 	scsi_qla_host_t *vha;
3714 	struct qla_hw_data  *ha;
3715 
3716 	vha = pci_get_drvdata(pdev);
3717 	ha = vha->hw;
3718 
3719 	ql_log(ql_log_info, vha, 0xfffa,
3720 		"Adapter shutdown\n");
3721 
3722 	/*
3723 	 * Prevent future board_disable and wait
3724 	 * until any pending board_disable has completed.
3725 	 */
3726 	__qla_set_remove_flag(vha);
3727 	cancel_work_sync(&ha->board_disable);
3728 
3729 	if (!atomic_read(&pdev->enable_cnt))
3730 		return;
3731 
3732 	/* Notify ISPFX00 firmware */
3733 	if (IS_QLAFX00(ha))
3734 		qlafx00_driver_shutdown(vha, 20);
3735 
3736 	/* Turn-off FCE trace */
3737 	if (ha->flags.fce_enabled) {
3738 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3739 		ha->flags.fce_enabled = 0;
3740 	}
3741 
3742 	/* Turn-off EFT trace */
3743 	if (ha->eft)
3744 		qla2x00_disable_eft_trace(vha);
3745 
3746 	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3747 	    IS_QLA28XX(ha)) {
3748 		if (ha->flags.fw_started)
3749 			qla2x00_abort_isp_cleanup(vha);
3750 	} else {
3751 		/* Stop currently executing firmware. */
3752 		qla2x00_try_to_stop_firmware(vha);
3753 	}
3754 
3755 	/* Disable timer */
3756 	if (vha->timer_active)
3757 		qla2x00_stop_timer(vha);
3758 
3759 	/* Turn adapter off line */
3760 	vha->flags.online = 0;
3761 
3762 	/* turn-off interrupts on the card */
3763 	if (ha->interrupts_on) {
3764 		vha->flags.init_done = 0;
3765 		ha->isp_ops->disable_intrs(ha);
3766 	}
3767 
3768 	qla2x00_free_irqs(vha);
3769 
3770 	qla2x00_free_fw_dump(ha);
3771 
3772 	pci_disable_device(pdev);
3773 	ql_log(ql_log_info, vha, 0xfffe,
3774 		"Adapter shutdown successfully.\n");
3775 }
3776 
3777 /* Deletes all the virtual ports for a given ha */
3778 static void
3779 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
3780 {
3781 	scsi_qla_host_t *vha;
3782 	unsigned long flags;
3783 
3784 	mutex_lock(&ha->vport_lock);
3785 	while (ha->cur_vport_count) {
3786 		spin_lock_irqsave(&ha->vport_slock, flags);
3787 
3788 		BUG_ON(base_vha->list.next == &ha->vp_list);
3789 		/* This assumes first entry in ha->vp_list is always base vha */
3790 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3791 		scsi_host_get(vha->host);
3792 
3793 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3794 		mutex_unlock(&ha->vport_lock);
3795 
3796 		qla_nvme_delete(vha);
3797 
3798 		fc_vport_terminate(vha->fc_vport);
3799 		scsi_host_put(vha->host);
3800 
3801 		mutex_lock(&ha->vport_lock);
3802 	}
3803 	mutex_unlock(&ha->vport_lock);
3804 }
3805 
3806 /* Stops all deferred work threads */
3807 static void
3808 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
3809 {
3810 	/* Cancel all work and destroy DPC workqueues */
3811 	if (ha->dpc_lp_wq) {
3812 		cancel_work_sync(&ha->idc_aen);
3813 		destroy_workqueue(ha->dpc_lp_wq);
3814 		ha->dpc_lp_wq = NULL;
3815 	}
3816 
3817 	if (ha->dpc_hp_wq) {
3818 		cancel_work_sync(&ha->nic_core_reset);
3819 		cancel_work_sync(&ha->idc_state_handler);
3820 		cancel_work_sync(&ha->nic_core_unrecoverable);
3821 		destroy_workqueue(ha->dpc_hp_wq);
3822 		ha->dpc_hp_wq = NULL;
3823 	}
3824 
3825 	/* Kill the kernel thread for this host */
3826 	if (ha->dpc_thread) {
3827 		struct task_struct *t = ha->dpc_thread;
3828 
3829 		/*
3830 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3831 		 * so we need to zero it out.
3832 		 */
3833 		ha->dpc_thread = NULL;
3834 		kthread_stop(t);
3835 	}
3836 }
3837 
3838 static void
3839 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3840 {
3841 	if (IS_QLA82XX(ha)) {
3842 
3843 		iounmap((device_reg_t *)ha->nx_pcibase);
3844 		if (!ql2xdbwr)
3845 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3846 	} else {
3847 		if (ha->iobase)
3848 			iounmap(ha->iobase);
3849 
3850 		if (ha->cregbase)
3851 			iounmap(ha->cregbase);
3852 
3853 		if (ha->mqiobase)
3854 			iounmap(ha->mqiobase);
3855 
3856 		if (ha->msixbase)
3857 			iounmap(ha->msixbase);
3858 	}
3859 }
3860 
3861 static void
3862 qla2x00_clear_drv_active(struct qla_hw_data *ha)
3863 {
3864 	if (IS_QLA8044(ha)) {
3865 		qla8044_idc_lock(ha);
3866 		qla8044_clear_drv_active(ha);
3867 		qla8044_idc_unlock(ha);
3868 	} else if (IS_QLA82XX(ha)) {
3869 		qla82xx_idc_lock(ha);
3870 		qla82xx_clear_drv_active(ha);
3871 		qla82xx_idc_unlock(ha);
3872 	}
3873 }
3874 
3875 static void
3876 qla2x00_remove_one(struct pci_dev *pdev)
3877 {
3878 	scsi_qla_host_t *base_vha;
3879 	struct qla_hw_data  *ha;
3880 
3881 	base_vha = pci_get_drvdata(pdev);
3882 	ha = base_vha->hw;
3883 	ql_log(ql_log_info, base_vha, 0xb079,
3884 	    "Removing driver\n");
3885 	__qla_set_remove_flag(base_vha);
3886 	cancel_work_sync(&ha->board_disable);
3887 
3888 	/*
3889 	 * If the PCI device is disabled then there was a PCI-disconnect and
3890 	 * qla2x00_disable_board_on_pci_error has taken care of most of the
3891 	 * resources.
3892 	 */
3893 	if (!atomic_read(&pdev->enable_cnt)) {
3894 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3895 		    base_vha->gnl.l, base_vha->gnl.ldma);
3896 		base_vha->gnl.l = NULL;
3897 		scsi_host_put(base_vha->host);
3898 		kfree(ha);
3899 		pci_set_drvdata(pdev, NULL);
3900 		return;
3901 	}
3902 	qla2x00_wait_for_hba_ready(base_vha);
3903 
3904 	/*
3905 	 * if UNLOADING flag is already set, then continue unload,
3906 	 * where it was set first.
3907 	 */
3908 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
3909 		return;
3910 
3911 	if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3912 	    IS_QLA28XX(ha)) {
3913 		if (ha->flags.fw_started)
3914 			qla2x00_abort_isp_cleanup(base_vha);
3915 	} else if (!IS_QLAFX00(ha)) {
3916 		if (IS_QLA8031(ha)) {
3917 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3918 			    "Clearing fcoe driver presence.\n");
3919 			if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3920 				ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3921 				    "Error while clearing DRV-Presence.\n");
3922 		}
3923 
3924 		qla2x00_try_to_stop_firmware(base_vha);
3925 	}
3926 
3927 	qla2x00_wait_for_sess_deletion(base_vha);
3928 
3929 	qla_nvme_delete(base_vha);
3930 
3931 	dma_free_coherent(&ha->pdev->dev,
3932 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
3933 
3934 	base_vha->gnl.l = NULL;
3935 	qla_enode_stop(base_vha);
3936 	qla_edb_stop(base_vha);
3937 
3938 	vfree(base_vha->scan.l);
3939 
3940 	if (IS_QLAFX00(ha))
3941 		qlafx00_driver_shutdown(base_vha, 20);
3942 
3943 	qla2x00_delete_all_vps(ha, base_vha);
3944 
3945 	qla2x00_dfs_remove(base_vha);
3946 
3947 	qla84xx_put_chip(base_vha);
3948 
3949 	/* Disable timer */
3950 	if (base_vha->timer_active)
3951 		qla2x00_stop_timer(base_vha);
3952 
3953 	base_vha->flags.online = 0;
3954 
3955 	/* free DMA memory */
3956 	if (ha->exlogin_buf)
3957 		qla2x00_free_exlogin_buffer(ha);
3958 
3959 	/* free DMA memory */
3960 	if (ha->exchoffld_buf)
3961 		qla2x00_free_exchoffld_buffer(ha);
3962 
3963 	qla2x00_destroy_deferred_work(ha);
3964 
3965 	qlt_remove_target(ha, base_vha);
3966 
3967 	qla2x00_free_sysfs_attr(base_vha, true);
3968 
3969 	fc_remove_host(base_vha->host);
3970 
3971 	scsi_remove_host(base_vha->host);
3972 
3973 	qla2x00_free_device(base_vha);
3974 
3975 	qla2x00_clear_drv_active(ha);
3976 
3977 	scsi_host_put(base_vha->host);
3978 
3979 	qla2x00_unmap_iobases(ha);
3980 
3981 	pci_release_selected_regions(ha->pdev, ha->bars);
3982 	kfree(ha);
3983 
3984 	pci_disable_device(pdev);
3985 }
3986 
3987 static inline void
3988 qla24xx_free_purex_list(struct purex_list *list)
3989 {
3990 	struct purex_item *item, *next;
3991 	ulong flags;
3992 
3993 	spin_lock_irqsave(&list->lock, flags);
3994 	list_for_each_entry_safe(item, next, &list->head, list) {
3995 		list_del(&item->list);
3996 		if (item == &item->vha->default_item)
3997 			continue;
3998 		kfree(item);
3999 	}
4000 	spin_unlock_irqrestore(&list->lock, flags);
4001 }
4002 
4003 static void
4004 qla2x00_free_device(scsi_qla_host_t *vha)
4005 {
4006 	struct qla_hw_data *ha = vha->hw;
4007 
4008 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
4009 
4010 	/* Disable timer */
4011 	if (vha->timer_active)
4012 		qla2x00_stop_timer(vha);
4013 
4014 	qla25xx_delete_queues(vha);
4015 	vha->flags.online = 0;
4016 
4017 	/* turn-off interrupts on the card */
4018 	if (ha->interrupts_on) {
4019 		vha->flags.init_done = 0;
4020 		ha->isp_ops->disable_intrs(ha);
4021 	}
4022 
4023 	qla2x00_free_fcports(vha);
4024 
4025 	qla2x00_free_irqs(vha);
4026 
4027 	/* Flush the work queue and remove it */
4028 	if (ha->wq) {
4029 		destroy_workqueue(ha->wq);
4030 		ha->wq = NULL;
4031 	}
4032 
4033 
4034 	qla24xx_free_purex_list(&vha->purex_list);
4035 
4036 	qla2x00_mem_free(ha);
4037 
4038 	qla82xx_md_free(vha);
4039 
4040 	qla_edif_sadb_release_free_pool(ha);
4041 	qla_edif_sadb_release(ha);
4042 
4043 	qla2x00_free_queues(ha);
4044 }
4045 
4046 void qla2x00_free_fcports(struct scsi_qla_host *vha)
4047 {
4048 	fc_port_t *fcport, *tfcport;
4049 
4050 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list)
4051 		qla2x00_free_fcport(fcport);
4052 }
4053 
4054 static inline void
4055 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport)
4056 {
4057 	int now;
4058 
4059 	if (!fcport->rport)
4060 		return;
4061 
4062 	if (fcport->rport) {
4063 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2109,
4064 		    "%s %8phN. rport %p roles %x\n",
4065 		    __func__, fcport->port_name, fcport->rport,
4066 		    fcport->rport->roles);
4067 		fc_remote_port_delete(fcport->rport);
4068 	}
4069 	qlt_do_generation_tick(vha, &now);
4070 }
4071 
4072 /*
4073  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
4074  *
4075  * Input: ha = adapter block pointer.  fcport = port structure pointer.
4076  *
4077  * Return: None.
4078  *
4079  * Context:
4080  */
4081 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
4082     int do_login)
4083 {
4084 	if (IS_QLAFX00(vha->hw)) {
4085 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4086 		qla2x00_schedule_rport_del(vha, fcport);
4087 		return;
4088 	}
4089 
4090 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
4091 	    vha->vp_idx == fcport->vha->vp_idx) {
4092 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4093 		qla2x00_schedule_rport_del(vha, fcport);
4094 	}
4095 
4096 	/*
4097 	 * We may need to retry the login, so don't change the state of the
4098 	 * port but do the retries.
4099 	 */
4100 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
4101 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4102 
4103 	if (!do_login)
4104 		return;
4105 
4106 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4107 }
4108 
4109 void
4110 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha)
4111 {
4112 	fc_port_t *fcport;
4113 
4114 	ql_dbg(ql_dbg_disc, vha, 0x20f1,
4115 	    "Mark all dev lost\n");
4116 
4117 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4118 		if (ql2xfc2target &&
4119 		    fcport->loop_id != FC_NO_LOOP_ID &&
4120 		    (fcport->flags & FCF_FCP2_DEVICE) &&
4121 		    fcport->port_type == FCT_TARGET &&
4122 		    !qla2x00_reset_active(vha)) {
4123 			ql_dbg(ql_dbg_disc, vha, 0x211a,
4124 			       "Delaying session delete for FCP2 flags 0x%x port_type = 0x%x port_id=%06x %phC",
4125 			       fcport->flags, fcport->port_type,
4126 			       fcport->d_id.b24, fcport->port_name);
4127 			continue;
4128 		}
4129 		fcport->scan_state = 0;
4130 		qlt_schedule_sess_for_deletion(fcport);
4131 	}
4132 }
4133 
4134 static void qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
4135 {
4136 	int i;
4137 
4138 	if (IS_FWI2_CAPABLE(ha))
4139 		return;
4140 
4141 	for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
4142 		set_bit(i, ha->loop_id_map);
4143 	set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
4144 	set_bit(BROADCAST, ha->loop_id_map);
4145 }
4146 
4147 /*
4148 * qla2x00_mem_alloc
4149 *      Allocates adapter memory.
4150 *
4151 * Returns:
4152 *      0  = success.
4153 *      !0  = failure.
4154 */
4155 static int
4156 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
4157 	struct req_que **req, struct rsp_que **rsp)
4158 {
4159 	char	name[16];
4160 	int rc;
4161 
4162 	if (QLA_TGT_MODE_ENABLED() || EDIF_CAP(ha)) {
4163 		ha->vp_map = kcalloc(MAX_MULTI_ID_FABRIC, sizeof(struct qla_vp_map), GFP_KERNEL);
4164 		if (!ha->vp_map)
4165 			goto fail;
4166 	}
4167 
4168 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
4169 		&ha->init_cb_dma, GFP_KERNEL);
4170 	if (!ha->init_cb)
4171 		goto fail_free_vp_map;
4172 
4173 	rc = btree_init32(&ha->host_map);
4174 	if (rc)
4175 		goto fail_free_init_cb;
4176 
4177 	if (qlt_mem_alloc(ha) < 0)
4178 		goto fail_free_btree;
4179 
4180 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
4181 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
4182 	if (!ha->gid_list)
4183 		goto fail_free_tgt_mem;
4184 
4185 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
4186 	if (!ha->srb_mempool)
4187 		goto fail_free_gid_list;
4188 
4189 	if (IS_P3P_TYPE(ha) || IS_QLA27XX(ha) || (ql2xsecenable && IS_QLA28XX(ha))) {
4190 		/* Allocate cache for CT6 Ctx. */
4191 		if (!ctx_cachep) {
4192 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
4193 				sizeof(struct ct6_dsd), 0,
4194 				SLAB_HWCACHE_ALIGN, NULL);
4195 			if (!ctx_cachep)
4196 				goto fail_free_srb_mempool;
4197 		}
4198 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
4199 			ctx_cachep);
4200 		if (!ha->ctx_mempool)
4201 			goto fail_free_srb_mempool;
4202 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
4203 		    "ctx_cachep=%p ctx_mempool=%p.\n",
4204 		    ctx_cachep, ha->ctx_mempool);
4205 	}
4206 
4207 	/* Get memory for cached NVRAM */
4208 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
4209 	if (!ha->nvram)
4210 		goto fail_free_ctx_mempool;
4211 
4212 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
4213 		ha->pdev->device);
4214 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4215 		DMA_POOL_SIZE, 8, 0);
4216 	if (!ha->s_dma_pool)
4217 		goto fail_free_nvram;
4218 
4219 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
4220 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
4221 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
4222 
4223 	if (IS_P3P_TYPE(ha) || ql2xenabledif || (IS_QLA28XX(ha) && ql2xsecenable)) {
4224 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4225 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
4226 		if (!ha->dl_dma_pool) {
4227 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
4228 			    "Failed to allocate memory for dl_dma_pool.\n");
4229 			goto fail_s_dma_pool;
4230 		}
4231 
4232 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4233 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
4234 		if (!ha->fcp_cmnd_dma_pool) {
4235 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
4236 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
4237 			goto fail_dl_dma_pool;
4238 		}
4239 
4240 		if (ql2xenabledif) {
4241 			u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
4242 			struct dsd_dma *dsd, *nxt;
4243 			uint i;
4244 			/* Creata a DMA pool of buffers for DIF bundling */
4245 			ha->dif_bundl_pool = dma_pool_create(name,
4246 			    &ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
4247 			if (!ha->dif_bundl_pool) {
4248 				ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4249 				    "%s: failed create dif_bundl_pool\n",
4250 				    __func__);
4251 				goto fail_dif_bundl_dma_pool;
4252 			}
4253 
4254 			INIT_LIST_HEAD(&ha->pool.good.head);
4255 			INIT_LIST_HEAD(&ha->pool.unusable.head);
4256 			ha->pool.good.count = 0;
4257 			ha->pool.unusable.count = 0;
4258 			for (i = 0; i < 128; i++) {
4259 				dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
4260 				if (!dsd) {
4261 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4262 					    0xe0ee, "%s: failed alloc dsd\n",
4263 					    __func__);
4264 					return -ENOMEM;
4265 				}
4266 				ha->dif_bundle_kallocs++;
4267 
4268 				dsd->dsd_addr = dma_pool_alloc(
4269 				    ha->dif_bundl_pool, GFP_ATOMIC,
4270 				    &dsd->dsd_list_dma);
4271 				if (!dsd->dsd_addr) {
4272 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4273 					    0xe0ee,
4274 					    "%s: failed alloc ->dsd_addr\n",
4275 					    __func__);
4276 					kfree(dsd);
4277 					ha->dif_bundle_kallocs--;
4278 					continue;
4279 				}
4280 				ha->dif_bundle_dma_allocs++;
4281 
4282 				/*
4283 				 * if DMA buffer crosses 4G boundary,
4284 				 * put it on bad list
4285 				 */
4286 				if (MSD(dsd->dsd_list_dma) ^
4287 				    MSD(dsd->dsd_list_dma + bufsize)) {
4288 					list_add_tail(&dsd->list,
4289 					    &ha->pool.unusable.head);
4290 					ha->pool.unusable.count++;
4291 				} else {
4292 					list_add_tail(&dsd->list,
4293 					    &ha->pool.good.head);
4294 					ha->pool.good.count++;
4295 				}
4296 			}
4297 
4298 			/* return the good ones back to the pool */
4299 			list_for_each_entry_safe(dsd, nxt,
4300 			    &ha->pool.good.head, list) {
4301 				list_del(&dsd->list);
4302 				dma_pool_free(ha->dif_bundl_pool,
4303 				    dsd->dsd_addr, dsd->dsd_list_dma);
4304 				ha->dif_bundle_dma_allocs--;
4305 				kfree(dsd);
4306 				ha->dif_bundle_kallocs--;
4307 			}
4308 
4309 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4310 			    "%s: dif dma pool (good=%u unusable=%u)\n",
4311 			    __func__, ha->pool.good.count,
4312 			    ha->pool.unusable.count);
4313 		}
4314 
4315 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
4316 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
4317 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
4318 		    ha->dif_bundl_pool);
4319 	}
4320 
4321 	/* Allocate memory for SNS commands */
4322 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4323 	/* Get consistent memory allocated for SNS commands */
4324 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
4325 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
4326 		if (!ha->sns_cmd)
4327 			goto fail_dma_pool;
4328 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
4329 		    "sns_cmd: %p.\n", ha->sns_cmd);
4330 	} else {
4331 	/* Get consistent memory allocated for MS IOCB */
4332 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4333 			&ha->ms_iocb_dma);
4334 		if (!ha->ms_iocb)
4335 			goto fail_dma_pool;
4336 	/* Get consistent memory allocated for CT SNS commands */
4337 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
4338 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
4339 		if (!ha->ct_sns)
4340 			goto fail_free_ms_iocb;
4341 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
4342 		    "ms_iocb=%p ct_sns=%p.\n",
4343 		    ha->ms_iocb, ha->ct_sns);
4344 	}
4345 
4346 	/* Allocate memory for request ring */
4347 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
4348 	if (!*req) {
4349 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
4350 		    "Failed to allocate memory for req.\n");
4351 		goto fail_req;
4352 	}
4353 	(*req)->length = req_len;
4354 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
4355 		((*req)->length + 1) * sizeof(request_t),
4356 		&(*req)->dma, GFP_KERNEL);
4357 	if (!(*req)->ring) {
4358 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
4359 		    "Failed to allocate memory for req_ring.\n");
4360 		goto fail_req_ring;
4361 	}
4362 	/* Allocate memory for response ring */
4363 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
4364 	if (!*rsp) {
4365 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
4366 		    "Failed to allocate memory for rsp.\n");
4367 		goto fail_rsp;
4368 	}
4369 	(*rsp)->hw = ha;
4370 	(*rsp)->length = rsp_len;
4371 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
4372 		((*rsp)->length + 1) * sizeof(response_t),
4373 		&(*rsp)->dma, GFP_KERNEL);
4374 	if (!(*rsp)->ring) {
4375 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
4376 		    "Failed to allocate memory for rsp_ring.\n");
4377 		goto fail_rsp_ring;
4378 	}
4379 	(*req)->rsp = *rsp;
4380 	(*rsp)->req = *req;
4381 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
4382 	    "req=%p req->length=%d req->ring=%p rsp=%p "
4383 	    "rsp->length=%d rsp->ring=%p.\n",
4384 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
4385 	    (*rsp)->ring);
4386 	/* Allocate memory for NVRAM data for vports */
4387 	if (ha->nvram_npiv_size) {
4388 		ha->npiv_info = kcalloc(ha->nvram_npiv_size,
4389 					sizeof(struct qla_npiv_entry),
4390 					GFP_KERNEL);
4391 		if (!ha->npiv_info) {
4392 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
4393 			    "Failed to allocate memory for npiv_info.\n");
4394 			goto fail_npiv_info;
4395 		}
4396 	} else
4397 		ha->npiv_info = NULL;
4398 
4399 	/* Get consistent memory allocated for EX-INIT-CB. */
4400 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
4401 	    IS_QLA28XX(ha)) {
4402 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4403 		    &ha->ex_init_cb_dma);
4404 		if (!ha->ex_init_cb)
4405 			goto fail_ex_init_cb;
4406 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
4407 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
4408 	}
4409 
4410 	/* Get consistent memory allocated for Special Features-CB. */
4411 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4412 		ha->sf_init_cb = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL,
4413 						&ha->sf_init_cb_dma);
4414 		if (!ha->sf_init_cb)
4415 			goto fail_sf_init_cb;
4416 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199,
4417 			   "sf_init_cb=%p.\n", ha->sf_init_cb);
4418 	}
4419 
4420 
4421 	/* Get consistent memory allocated for Async Port-Database. */
4422 	if (!IS_FWI2_CAPABLE(ha)) {
4423 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4424 			&ha->async_pd_dma);
4425 		if (!ha->async_pd)
4426 			goto fail_async_pd;
4427 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
4428 		    "async_pd=%p.\n", ha->async_pd);
4429 	}
4430 
4431 	INIT_LIST_HEAD(&ha->vp_list);
4432 
4433 	/* Allocate memory for our loop_id bitmap */
4434 	ha->loop_id_map = kcalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE),
4435 				  sizeof(long),
4436 				  GFP_KERNEL);
4437 	if (!ha->loop_id_map)
4438 		goto fail_loop_id_map;
4439 	else {
4440 		qla2x00_set_reserved_loop_ids(ha);
4441 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
4442 		    "loop_id_map=%p.\n", ha->loop_id_map);
4443 	}
4444 
4445 	ha->sfp_data = dma_alloc_coherent(&ha->pdev->dev,
4446 	    SFP_DEV_SIZE, &ha->sfp_data_dma, GFP_KERNEL);
4447 	if (!ha->sfp_data) {
4448 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4449 		    "Unable to allocate memory for SFP read-data.\n");
4450 		goto fail_sfp_data;
4451 	}
4452 
4453 	ha->flt = dma_alloc_coherent(&ha->pdev->dev,
4454 	    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, &ha->flt_dma,
4455 	    GFP_KERNEL);
4456 	if (!ha->flt) {
4457 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4458 		    "Unable to allocate memory for FLT.\n");
4459 		goto fail_flt_buffer;
4460 	}
4461 
4462 	/* allocate the purex dma pool */
4463 	ha->purex_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4464 	    ELS_MAX_PAYLOAD, 8, 0);
4465 
4466 	if (!ha->purex_dma_pool) {
4467 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4468 		    "Unable to allocate purex_dma_pool.\n");
4469 		goto fail_flt;
4470 	}
4471 
4472 	ha->elsrej.size = sizeof(struct fc_els_ls_rjt) + 16;
4473 	ha->elsrej.c = dma_alloc_coherent(&ha->pdev->dev,
4474 					  ha->elsrej.size,
4475 					  &ha->elsrej.cdma,
4476 					  GFP_KERNEL);
4477 	if (!ha->elsrej.c) {
4478 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
4479 		    "Alloc failed for els reject cmd.\n");
4480 		goto fail_elsrej;
4481 	}
4482 	ha->elsrej.c->er_cmd = ELS_LS_RJT;
4483 	ha->elsrej.c->er_reason = ELS_RJT_LOGIC;
4484 	ha->elsrej.c->er_explan = ELS_EXPL_UNAB_DATA;
4485 
4486 	ha->lsrjt.size = sizeof(struct fcnvme_ls_rjt);
4487 	ha->lsrjt.c = dma_alloc_coherent(&ha->pdev->dev, ha->lsrjt.size,
4488 			&ha->lsrjt.cdma, GFP_KERNEL);
4489 	if (!ha->lsrjt.c) {
4490 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
4491 			   "Alloc failed for nvme fc reject cmd.\n");
4492 		goto fail_lsrjt;
4493 	}
4494 
4495 	return 0;
4496 
4497 fail_lsrjt:
4498 	dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
4499 			  ha->elsrej.c, ha->elsrej.cdma);
4500 fail_elsrej:
4501 	dma_pool_destroy(ha->purex_dma_pool);
4502 fail_flt:
4503 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4504 	    ha->flt, ha->flt_dma);
4505 
4506 fail_flt_buffer:
4507 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4508 	    ha->sfp_data, ha->sfp_data_dma);
4509 fail_sfp_data:
4510 	kfree(ha->loop_id_map);
4511 fail_loop_id_map:
4512 	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4513 fail_async_pd:
4514 	dma_pool_free(ha->s_dma_pool, ha->sf_init_cb, ha->sf_init_cb_dma);
4515 fail_sf_init_cb:
4516 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
4517 fail_ex_init_cb:
4518 	kfree(ha->npiv_info);
4519 fail_npiv_info:
4520 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
4521 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
4522 	(*rsp)->ring = NULL;
4523 	(*rsp)->dma = 0;
4524 fail_rsp_ring:
4525 	kfree(*rsp);
4526 	*rsp = NULL;
4527 fail_rsp:
4528 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
4529 		sizeof(request_t), (*req)->ring, (*req)->dma);
4530 	(*req)->ring = NULL;
4531 	(*req)->dma = 0;
4532 fail_req_ring:
4533 	kfree(*req);
4534 	*req = NULL;
4535 fail_req:
4536 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4537 		ha->ct_sns, ha->ct_sns_dma);
4538 	ha->ct_sns = NULL;
4539 	ha->ct_sns_dma = 0;
4540 fail_free_ms_iocb:
4541 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4542 	ha->ms_iocb = NULL;
4543 	ha->ms_iocb_dma = 0;
4544 
4545 	if (ha->sns_cmd)
4546 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4547 		    ha->sns_cmd, ha->sns_cmd_dma);
4548 fail_dma_pool:
4549 	if (ql2xenabledif) {
4550 		struct dsd_dma *dsd, *nxt;
4551 
4552 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4553 		    list) {
4554 			list_del(&dsd->list);
4555 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4556 			    dsd->dsd_list_dma);
4557 			ha->dif_bundle_dma_allocs--;
4558 			kfree(dsd);
4559 			ha->dif_bundle_kallocs--;
4560 			ha->pool.unusable.count--;
4561 		}
4562 		dma_pool_destroy(ha->dif_bundl_pool);
4563 		ha->dif_bundl_pool = NULL;
4564 	}
4565 
4566 fail_dif_bundl_dma_pool:
4567 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4568 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4569 		ha->fcp_cmnd_dma_pool = NULL;
4570 	}
4571 fail_dl_dma_pool:
4572 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4573 		dma_pool_destroy(ha->dl_dma_pool);
4574 		ha->dl_dma_pool = NULL;
4575 	}
4576 fail_s_dma_pool:
4577 	dma_pool_destroy(ha->s_dma_pool);
4578 	ha->s_dma_pool = NULL;
4579 fail_free_nvram:
4580 	kfree(ha->nvram);
4581 	ha->nvram = NULL;
4582 fail_free_ctx_mempool:
4583 	mempool_destroy(ha->ctx_mempool);
4584 	ha->ctx_mempool = NULL;
4585 fail_free_srb_mempool:
4586 	mempool_destroy(ha->srb_mempool);
4587 	ha->srb_mempool = NULL;
4588 fail_free_gid_list:
4589 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4590 	ha->gid_list,
4591 	ha->gid_list_dma);
4592 	ha->gid_list = NULL;
4593 	ha->gid_list_dma = 0;
4594 fail_free_tgt_mem:
4595 	qlt_mem_free(ha);
4596 fail_free_btree:
4597 	btree_destroy32(&ha->host_map);
4598 fail_free_init_cb:
4599 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
4600 	ha->init_cb_dma);
4601 	ha->init_cb = NULL;
4602 	ha->init_cb_dma = 0;
4603 fail_free_vp_map:
4604 	kfree(ha->vp_map);
4605 fail:
4606 	ql_log(ql_log_fatal, NULL, 0x0030,
4607 	    "Memory allocation failure.\n");
4608 	return -ENOMEM;
4609 }
4610 
4611 int
4612 qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
4613 {
4614 	int rval;
4615 	uint16_t	size, max_cnt;
4616 	uint32_t temp;
4617 	struct qla_hw_data *ha = vha->hw;
4618 
4619 	/* Return if we don't need to alloacate any extended logins */
4620 	if (ql2xexlogins <= MAX_FIBRE_DEVICES_2400)
4621 		return QLA_SUCCESS;
4622 
4623 	if (!IS_EXLOGIN_OFFLD_CAPABLE(ha))
4624 		return QLA_SUCCESS;
4625 
4626 	ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
4627 	max_cnt = 0;
4628 	rval = qla_get_exlogin_status(vha, &size, &max_cnt);
4629 	if (rval != QLA_SUCCESS) {
4630 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
4631 		    "Failed to get exlogin status.\n");
4632 		return rval;
4633 	}
4634 
4635 	temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
4636 	temp *= size;
4637 
4638 	if (temp != ha->exlogin_size) {
4639 		qla2x00_free_exlogin_buffer(ha);
4640 		ha->exlogin_size = temp;
4641 
4642 		ql_log(ql_log_info, vha, 0xd024,
4643 		    "EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
4644 		    max_cnt, size, temp);
4645 
4646 		ql_log(ql_log_info, vha, 0xd025,
4647 		    "EXLOGIN: requested size=0x%x\n", ha->exlogin_size);
4648 
4649 		/* Get consistent memory for extended logins */
4650 		ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
4651 			ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
4652 		if (!ha->exlogin_buf) {
4653 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
4654 		    "Failed to allocate memory for exlogin_buf_dma.\n");
4655 			return -ENOMEM;
4656 		}
4657 	}
4658 
4659 	/* Now configure the dma buffer */
4660 	rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
4661 	if (rval) {
4662 		ql_log(ql_log_fatal, vha, 0xd033,
4663 		    "Setup extended login buffer  ****FAILED****.\n");
4664 		qla2x00_free_exlogin_buffer(ha);
4665 	}
4666 
4667 	return rval;
4668 }
4669 
4670 /*
4671 * qla2x00_free_exlogin_buffer
4672 *
4673 * Input:
4674 *	ha = adapter block pointer
4675 */
4676 void
4677 qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
4678 {
4679 	if (ha->exlogin_buf) {
4680 		dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
4681 		    ha->exlogin_buf, ha->exlogin_buf_dma);
4682 		ha->exlogin_buf = NULL;
4683 		ha->exlogin_size = 0;
4684 	}
4685 }
4686 
4687 static void
4688 qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
4689 {
4690 	u32 temp;
4691 	struct init_cb_81xx *icb = (struct init_cb_81xx *)&vha->hw->init_cb;
4692 	*ret_cnt = FW_DEF_EXCHANGES_CNT;
4693 
4694 	if (max_cnt > vha->hw->max_exchg)
4695 		max_cnt = vha->hw->max_exchg;
4696 
4697 	if (qla_ini_mode_enabled(vha)) {
4698 		if (vha->ql2xiniexchg > max_cnt)
4699 			vha->ql2xiniexchg = max_cnt;
4700 
4701 		if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
4702 			*ret_cnt = vha->ql2xiniexchg;
4703 
4704 	} else if (qla_tgt_mode_enabled(vha)) {
4705 		if (vha->ql2xexchoffld > max_cnt) {
4706 			vha->ql2xexchoffld = max_cnt;
4707 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4708 		}
4709 
4710 		if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
4711 			*ret_cnt = vha->ql2xexchoffld;
4712 	} else if (qla_dual_mode_enabled(vha)) {
4713 		temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
4714 		if (temp > max_cnt) {
4715 			vha->ql2xiniexchg -= (temp - max_cnt)/2;
4716 			vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
4717 			temp = max_cnt;
4718 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4719 		}
4720 
4721 		if (temp > FW_DEF_EXCHANGES_CNT)
4722 			*ret_cnt = temp;
4723 	}
4724 }
4725 
4726 int
4727 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
4728 {
4729 	int rval;
4730 	u16	size, max_cnt;
4731 	u32 actual_cnt, totsz;
4732 	struct qla_hw_data *ha = vha->hw;
4733 
4734 	if (!ha->flags.exchoffld_enabled)
4735 		return QLA_SUCCESS;
4736 
4737 	if (!IS_EXCHG_OFFLD_CAPABLE(ha))
4738 		return QLA_SUCCESS;
4739 
4740 	max_cnt = 0;
4741 	rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
4742 	if (rval != QLA_SUCCESS) {
4743 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
4744 		    "Failed to get exlogin status.\n");
4745 		return rval;
4746 	}
4747 
4748 	qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
4749 	ql_log(ql_log_info, vha, 0xd014,
4750 	    "Actual exchange offload count: %d.\n", actual_cnt);
4751 
4752 	totsz = actual_cnt * size;
4753 
4754 	if (totsz != ha->exchoffld_size) {
4755 		qla2x00_free_exchoffld_buffer(ha);
4756 		if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
4757 			ha->exchoffld_size = 0;
4758 			ha->flags.exchoffld_enabled = 0;
4759 			return QLA_SUCCESS;
4760 		}
4761 
4762 		ha->exchoffld_size = totsz;
4763 
4764 		ql_log(ql_log_info, vha, 0xd016,
4765 		    "Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
4766 		    max_cnt, actual_cnt, size, totsz);
4767 
4768 		ql_log(ql_log_info, vha, 0xd017,
4769 		    "Exchange Buffers requested size = 0x%x\n",
4770 		    ha->exchoffld_size);
4771 
4772 		/* Get consistent memory for extended logins */
4773 		ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
4774 			ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
4775 		if (!ha->exchoffld_buf) {
4776 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4777 			"Failed to allocate memory for Exchange Offload.\n");
4778 
4779 			if (ha->max_exchg >
4780 			    (FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
4781 				ha->max_exchg -= REDUCE_EXCHANGES_CNT;
4782 			} else if (ha->max_exchg >
4783 			    (FW_DEF_EXCHANGES_CNT + 512)) {
4784 				ha->max_exchg -= 512;
4785 			} else {
4786 				ha->flags.exchoffld_enabled = 0;
4787 				ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4788 				    "Disabling Exchange offload due to lack of memory\n");
4789 			}
4790 			ha->exchoffld_size = 0;
4791 
4792 			return -ENOMEM;
4793 		}
4794 	} else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
4795 		/* pathological case */
4796 		qla2x00_free_exchoffld_buffer(ha);
4797 		ha->exchoffld_size = 0;
4798 		ha->flags.exchoffld_enabled = 0;
4799 		ql_log(ql_log_info, vha, 0xd016,
4800 		    "Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
4801 		    ha->exchoffld_size, actual_cnt, size, totsz);
4802 		return 0;
4803 	}
4804 
4805 	/* Now configure the dma buffer */
4806 	rval = qla_set_exchoffld_mem_cfg(vha);
4807 	if (rval) {
4808 		ql_log(ql_log_fatal, vha, 0xd02e,
4809 		    "Setup exchange offload buffer ****FAILED****.\n");
4810 		qla2x00_free_exchoffld_buffer(ha);
4811 	} else {
4812 		/* re-adjust number of target exchange */
4813 		struct init_cb_81xx *icb = (struct init_cb_81xx *)ha->init_cb;
4814 
4815 		if (qla_ini_mode_enabled(vha))
4816 			icb->exchange_count = 0;
4817 		else
4818 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4819 	}
4820 
4821 	return rval;
4822 }
4823 
4824 /*
4825 * qla2x00_free_exchoffld_buffer
4826 *
4827 * Input:
4828 *	ha = adapter block pointer
4829 */
4830 void
4831 qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
4832 {
4833 	if (ha->exchoffld_buf) {
4834 		dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
4835 		    ha->exchoffld_buf, ha->exchoffld_buf_dma);
4836 		ha->exchoffld_buf = NULL;
4837 		ha->exchoffld_size = 0;
4838 	}
4839 }
4840 
4841 /*
4842 * qla2x00_free_fw_dump
4843 *	Frees fw dump stuff.
4844 *
4845 * Input:
4846 *	ha = adapter block pointer
4847 */
4848 static void
4849 qla2x00_free_fw_dump(struct qla_hw_data *ha)
4850 {
4851 	struct fwdt *fwdt = ha->fwdt;
4852 	uint j;
4853 
4854 	if (ha->fce)
4855 		dma_free_coherent(&ha->pdev->dev,
4856 		    FCE_SIZE, ha->fce, ha->fce_dma);
4857 
4858 	if (ha->eft)
4859 		dma_free_coherent(&ha->pdev->dev,
4860 		    EFT_SIZE, ha->eft, ha->eft_dma);
4861 
4862 	vfree(ha->fw_dump);
4863 
4864 	ha->fce = NULL;
4865 	ha->fce_dma = 0;
4866 	ha->flags.fce_enabled = 0;
4867 	ha->eft = NULL;
4868 	ha->eft_dma = 0;
4869 	ha->fw_dumped = false;
4870 	ha->fw_dump_cap_flags = 0;
4871 	ha->fw_dump_reading = 0;
4872 	ha->fw_dump = NULL;
4873 	ha->fw_dump_len = 0;
4874 
4875 	for (j = 0; j < 2; j++, fwdt++) {
4876 		vfree(fwdt->template);
4877 		fwdt->template = NULL;
4878 		fwdt->length = 0;
4879 	}
4880 }
4881 
4882 /*
4883 * qla2x00_mem_free
4884 *      Frees all adapter allocated memory.
4885 *
4886 * Input:
4887 *      ha = adapter block pointer.
4888 */
4889 static void
4890 qla2x00_mem_free(struct qla_hw_data *ha)
4891 {
4892 	qla2x00_free_fw_dump(ha);
4893 
4894 	if (ha->mctp_dump)
4895 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
4896 		    ha->mctp_dump_dma);
4897 	ha->mctp_dump = NULL;
4898 
4899 	mempool_destroy(ha->srb_mempool);
4900 	ha->srb_mempool = NULL;
4901 
4902 	if (ha->dcbx_tlv)
4903 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
4904 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
4905 	ha->dcbx_tlv = NULL;
4906 
4907 	if (ha->xgmac_data)
4908 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
4909 		    ha->xgmac_data, ha->xgmac_data_dma);
4910 	ha->xgmac_data = NULL;
4911 
4912 	if (ha->sns_cmd)
4913 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4914 		ha->sns_cmd, ha->sns_cmd_dma);
4915 	ha->sns_cmd = NULL;
4916 	ha->sns_cmd_dma = 0;
4917 
4918 	if (ha->ct_sns)
4919 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4920 		ha->ct_sns, ha->ct_sns_dma);
4921 	ha->ct_sns = NULL;
4922 	ha->ct_sns_dma = 0;
4923 
4924 	if (ha->sfp_data)
4925 		dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, ha->sfp_data,
4926 		    ha->sfp_data_dma);
4927 	ha->sfp_data = NULL;
4928 
4929 	if (ha->flt)
4930 		dma_free_coherent(&ha->pdev->dev,
4931 		    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE,
4932 		    ha->flt, ha->flt_dma);
4933 	ha->flt = NULL;
4934 	ha->flt_dma = 0;
4935 
4936 	if (ha->ms_iocb)
4937 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4938 	ha->ms_iocb = NULL;
4939 	ha->ms_iocb_dma = 0;
4940 
4941 	if (ha->sf_init_cb)
4942 		dma_pool_free(ha->s_dma_pool,
4943 			      ha->sf_init_cb, ha->sf_init_cb_dma);
4944 
4945 	if (ha->ex_init_cb)
4946 		dma_pool_free(ha->s_dma_pool,
4947 			ha->ex_init_cb, ha->ex_init_cb_dma);
4948 	ha->ex_init_cb = NULL;
4949 	ha->ex_init_cb_dma = 0;
4950 
4951 	if (ha->async_pd)
4952 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4953 	ha->async_pd = NULL;
4954 	ha->async_pd_dma = 0;
4955 
4956 	dma_pool_destroy(ha->s_dma_pool);
4957 	ha->s_dma_pool = NULL;
4958 
4959 	if (ha->gid_list)
4960 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4961 		ha->gid_list, ha->gid_list_dma);
4962 	ha->gid_list = NULL;
4963 	ha->gid_list_dma = 0;
4964 
4965 	if (ha->base_qpair && !list_empty(&ha->base_qpair->dsd_list)) {
4966 		struct dsd_dma *dsd_ptr, *tdsd_ptr;
4967 
4968 		/* clean up allocated prev pool */
4969 		list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
4970 					 &ha->base_qpair->dsd_list, list) {
4971 			dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
4972 				      dsd_ptr->dsd_list_dma);
4973 			list_del(&dsd_ptr->list);
4974 			kfree(dsd_ptr);
4975 		}
4976 	}
4977 
4978 	dma_pool_destroy(ha->dl_dma_pool);
4979 	ha->dl_dma_pool = NULL;
4980 
4981 	dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4982 	ha->fcp_cmnd_dma_pool = NULL;
4983 
4984 	mempool_destroy(ha->ctx_mempool);
4985 	ha->ctx_mempool = NULL;
4986 
4987 	if (ql2xenabledif && ha->dif_bundl_pool) {
4988 		struct dsd_dma *dsd, *nxt;
4989 
4990 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4991 					 list) {
4992 			list_del(&dsd->list);
4993 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4994 				      dsd->dsd_list_dma);
4995 			ha->dif_bundle_dma_allocs--;
4996 			kfree(dsd);
4997 			ha->dif_bundle_kallocs--;
4998 			ha->pool.unusable.count--;
4999 		}
5000 		list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
5001 			list_del(&dsd->list);
5002 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
5003 				      dsd->dsd_list_dma);
5004 			ha->dif_bundle_dma_allocs--;
5005 			kfree(dsd);
5006 			ha->dif_bundle_kallocs--;
5007 		}
5008 	}
5009 
5010 	dma_pool_destroy(ha->dif_bundl_pool);
5011 	ha->dif_bundl_pool = NULL;
5012 
5013 	qlt_mem_free(ha);
5014 	qla_remove_hostmap(ha);
5015 
5016 	if (ha->init_cb)
5017 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
5018 			ha->init_cb, ha->init_cb_dma);
5019 
5020 	dma_pool_destroy(ha->purex_dma_pool);
5021 	ha->purex_dma_pool = NULL;
5022 
5023 	if (ha->elsrej.c) {
5024 		dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
5025 		    ha->elsrej.c, ha->elsrej.cdma);
5026 		ha->elsrej.c = NULL;
5027 	}
5028 
5029 	if (ha->lsrjt.c) {
5030 		dma_free_coherent(&ha->pdev->dev, ha->lsrjt.size, ha->lsrjt.c,
5031 				  ha->lsrjt.cdma);
5032 		ha->lsrjt.c = NULL;
5033 	}
5034 
5035 	ha->init_cb = NULL;
5036 	ha->init_cb_dma = 0;
5037 
5038 	vfree(ha->optrom_buffer);
5039 	ha->optrom_buffer = NULL;
5040 	kfree(ha->nvram);
5041 	ha->nvram = NULL;
5042 	kfree(ha->npiv_info);
5043 	ha->npiv_info = NULL;
5044 	kfree(ha->swl);
5045 	ha->swl = NULL;
5046 	kfree(ha->loop_id_map);
5047 	ha->sf_init_cb = NULL;
5048 	ha->sf_init_cb_dma = 0;
5049 	ha->loop_id_map = NULL;
5050 
5051 	kfree(ha->vp_map);
5052 	ha->vp_map = NULL;
5053 }
5054 
5055 struct scsi_qla_host *qla2x00_create_host(const struct scsi_host_template *sht,
5056 					  struct qla_hw_data *ha)
5057 {
5058 	struct Scsi_Host *host;
5059 	struct scsi_qla_host *vha = NULL;
5060 
5061 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
5062 	if (!host) {
5063 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
5064 		    "Failed to allocate host from the scsi layer, aborting.\n");
5065 		return NULL;
5066 	}
5067 
5068 	/* Clear our data area */
5069 	vha = shost_priv(host);
5070 	memset(vha, 0, sizeof(scsi_qla_host_t));
5071 
5072 	vha->host = host;
5073 	vha->host_no = host->host_no;
5074 	vha->hw = ha;
5075 
5076 	vha->qlini_mode = ql2x_ini_mode;
5077 	vha->ql2xexchoffld = ql2xexchoffld;
5078 	vha->ql2xiniexchg = ql2xiniexchg;
5079 
5080 	INIT_LIST_HEAD(&vha->vp_fcports);
5081 	INIT_LIST_HEAD(&vha->work_list);
5082 	INIT_LIST_HEAD(&vha->list);
5083 	INIT_LIST_HEAD(&vha->qla_cmd_list);
5084 	INIT_LIST_HEAD(&vha->logo_list);
5085 	INIT_LIST_HEAD(&vha->plogi_ack_list);
5086 	INIT_LIST_HEAD(&vha->qp_list);
5087 	INIT_LIST_HEAD(&vha->gnl.fcports);
5088 	INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
5089 
5090 	INIT_LIST_HEAD(&vha->purex_list.head);
5091 	spin_lock_init(&vha->purex_list.lock);
5092 
5093 	spin_lock_init(&vha->work_lock);
5094 	spin_lock_init(&vha->cmd_list_lock);
5095 	init_waitqueue_head(&vha->fcport_waitQ);
5096 	init_waitqueue_head(&vha->vref_waitq);
5097 	qla_enode_init(vha);
5098 	qla_edb_init(vha);
5099 
5100 
5101 	vha->gnl.size = sizeof(struct get_name_list_extended) *
5102 			(ha->max_loop_id + 1);
5103 	vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
5104 	    vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
5105 	if (!vha->gnl.l) {
5106 		ql_log(ql_log_fatal, vha, 0xd04a,
5107 		    "Alloc failed for name list.\n");
5108 		scsi_host_put(vha->host);
5109 		return NULL;
5110 	}
5111 
5112 	/* todo: what about ext login? */
5113 	vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
5114 	vha->scan.l = vmalloc(vha->scan.size);
5115 	if (!vha->scan.l) {
5116 		ql_log(ql_log_fatal, vha, 0xd04a,
5117 		    "Alloc failed for scan database.\n");
5118 		dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
5119 		    vha->gnl.l, vha->gnl.ldma);
5120 		vha->gnl.l = NULL;
5121 		scsi_host_put(vha->host);
5122 		return NULL;
5123 	}
5124 	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
5125 
5126 	snprintf(vha->host_str, sizeof(vha->host_str), "%s_%lu",
5127 		 QLA2XXX_DRIVER_NAME, vha->host_no);
5128 	ql_dbg(ql_dbg_init, vha, 0x0041,
5129 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
5130 	    vha->host, vha->hw, vha,
5131 	    dev_name(&(ha->pdev->dev)));
5132 
5133 	return vha;
5134 }
5135 
5136 struct qla_work_evt *
5137 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
5138 {
5139 	struct qla_work_evt *e;
5140 
5141 	if (test_bit(UNLOADING, &vha->dpc_flags))
5142 		return NULL;
5143 
5144 	if (qla_vha_mark_busy(vha))
5145 		return NULL;
5146 
5147 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
5148 	if (!e) {
5149 		QLA_VHA_MARK_NOT_BUSY(vha);
5150 		return NULL;
5151 	}
5152 
5153 	INIT_LIST_HEAD(&e->list);
5154 	e->type = type;
5155 	e->flags = QLA_EVT_FLAG_FREE;
5156 	return e;
5157 }
5158 
5159 int
5160 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
5161 {
5162 	unsigned long flags;
5163 	bool q = false;
5164 
5165 	spin_lock_irqsave(&vha->work_lock, flags);
5166 	list_add_tail(&e->list, &vha->work_list);
5167 
5168 	if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
5169 		q = true;
5170 
5171 	spin_unlock_irqrestore(&vha->work_lock, flags);
5172 
5173 	if (q)
5174 		queue_work(vha->hw->wq, &vha->iocb_work);
5175 
5176 	return QLA_SUCCESS;
5177 }
5178 
5179 int
5180 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
5181     u32 data)
5182 {
5183 	struct qla_work_evt *e;
5184 
5185 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
5186 	if (!e)
5187 		return QLA_FUNCTION_FAILED;
5188 
5189 	e->u.aen.code = code;
5190 	e->u.aen.data = data;
5191 	return qla2x00_post_work(vha, e);
5192 }
5193 
5194 int
5195 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
5196 {
5197 	struct qla_work_evt *e;
5198 
5199 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
5200 	if (!e)
5201 		return QLA_FUNCTION_FAILED;
5202 
5203 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
5204 	return qla2x00_post_work(vha, e);
5205 }
5206 
5207 #define qla2x00_post_async_work(name, type)	\
5208 int qla2x00_post_async_##name##_work(		\
5209     struct scsi_qla_host *vha,			\
5210     fc_port_t *fcport, uint16_t *data)		\
5211 {						\
5212 	struct qla_work_evt *e;			\
5213 						\
5214 	e = qla2x00_alloc_work(vha, type);	\
5215 	if (!e)					\
5216 		return QLA_FUNCTION_FAILED;	\
5217 						\
5218 	e->u.logio.fcport = fcport;		\
5219 	if (data) {				\
5220 		e->u.logio.data[0] = data[0];	\
5221 		e->u.logio.data[1] = data[1];	\
5222 	}					\
5223 	fcport->flags |= FCF_ASYNC_ACTIVE;	\
5224 	return qla2x00_post_work(vha, e);	\
5225 }
5226 
5227 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
5228 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
5229 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
5230 qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
5231 qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
5232 
5233 int
5234 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
5235 {
5236 	struct qla_work_evt *e;
5237 
5238 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
5239 	if (!e)
5240 		return QLA_FUNCTION_FAILED;
5241 
5242 	e->u.uevent.code = code;
5243 	return qla2x00_post_work(vha, e);
5244 }
5245 
5246 static void
5247 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
5248 {
5249 	char event_string[40];
5250 	char *envp[] = { event_string, NULL };
5251 
5252 	switch (code) {
5253 	case QLA_UEVENT_CODE_FW_DUMP:
5254 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
5255 		    vha->host_no);
5256 		break;
5257 	default:
5258 		/* do nothing */
5259 		break;
5260 	}
5261 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
5262 }
5263 
5264 int
5265 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
5266 			uint32_t *data, int cnt)
5267 {
5268 	struct qla_work_evt *e;
5269 
5270 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
5271 	if (!e)
5272 		return QLA_FUNCTION_FAILED;
5273 
5274 	e->u.aenfx.evtcode = evtcode;
5275 	e->u.aenfx.count = cnt;
5276 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
5277 	return qla2x00_post_work(vha, e);
5278 }
5279 
5280 void qla24xx_sched_upd_fcport(fc_port_t *fcport)
5281 {
5282 	unsigned long flags;
5283 
5284 	if (IS_SW_RESV_ADDR(fcport->d_id))
5285 		return;
5286 
5287 	spin_lock_irqsave(&fcport->vha->work_lock, flags);
5288 	if (fcport->disc_state == DSC_UPD_FCPORT) {
5289 		spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5290 		return;
5291 	}
5292 	fcport->jiffies_at_registration = jiffies;
5293 	fcport->sec_since_registration = 0;
5294 	fcport->next_disc_state = DSC_DELETED;
5295 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5296 	spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5297 
5298 	queue_work(system_unbound_wq, &fcport->reg_work);
5299 }
5300 
5301 static
5302 void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
5303 {
5304 	unsigned long flags;
5305 	fc_port_t *fcport =  NULL, *tfcp;
5306 	struct qlt_plogi_ack_t *pla =
5307 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
5308 	uint8_t free_fcport = 0;
5309 
5310 	ql_dbg(ql_dbg_disc, vha, 0xffff,
5311 	    "%s %d %8phC enter\n",
5312 	    __func__, __LINE__, e->u.new_sess.port_name);
5313 
5314 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5315 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
5316 	if (fcport) {
5317 		fcport->d_id = e->u.new_sess.id;
5318 		if (pla) {
5319 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5320 			memcpy(fcport->node_name,
5321 			    pla->iocb.u.isp24.u.plogi.node_name,
5322 			    WWN_SIZE);
5323 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
5324 			/* we took an extra ref_count to prevent PLOGI ACK when
5325 			 * fcport/sess has not been created.
5326 			 */
5327 			pla->ref_count--;
5328 		}
5329 	} else {
5330 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5331 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5332 		if (fcport) {
5333 			fcport->d_id = e->u.new_sess.id;
5334 			fcport->flags |= FCF_FABRIC_DEVICE;
5335 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5336 			fcport->tgt_short_link_down_cnt = 0;
5337 
5338 			memcpy(fcport->port_name, e->u.new_sess.port_name,
5339 			    WWN_SIZE);
5340 
5341 			fcport->fc4_type = e->u.new_sess.fc4_type;
5342 			if (NVME_PRIORITY(vha->hw, fcport))
5343 				fcport->do_prli_nvme = 1;
5344 			else
5345 				fcport->do_prli_nvme = 0;
5346 
5347 			if (e->u.new_sess.fc4_type & FS_FCP_IS_N2N) {
5348 				fcport->dm_login_expire = jiffies +
5349 					QLA_N2N_WAIT_TIME * HZ;
5350 				fcport->fc4_type = FS_FC4TYPE_FCP;
5351 				fcport->n2n_flag = 1;
5352 				if (vha->flags.nvme_enabled)
5353 					fcport->fc4_type |= FS_FC4TYPE_NVME;
5354 			}
5355 
5356 		} else {
5357 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5358 				   "%s %8phC mem alloc fail.\n",
5359 				   __func__, e->u.new_sess.port_name);
5360 
5361 			if (pla) {
5362 				list_del(&pla->list);
5363 				kmem_cache_free(qla_tgt_plogi_cachep, pla);
5364 			}
5365 			return;
5366 		}
5367 
5368 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5369 		/* search again to make sure no one else got ahead */
5370 		tfcp = qla2x00_find_fcport_by_wwpn(vha,
5371 		    e->u.new_sess.port_name, 1);
5372 		if (tfcp) {
5373 			/* should rarily happen */
5374 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5375 			    "%s %8phC found existing fcport b4 add. DS %d LS %d\n",
5376 			    __func__, tfcp->port_name, tfcp->disc_state,
5377 			    tfcp->fw_login_state);
5378 
5379 			free_fcport = 1;
5380 		} else {
5381 			list_add_tail(&fcport->list, &vha->vp_fcports);
5382 
5383 		}
5384 		if (pla) {
5385 			qlt_plogi_ack_link(vha, pla, fcport,
5386 			    QLT_PLOGI_LINK_SAME_WWN);
5387 			pla->ref_count--;
5388 		}
5389 	}
5390 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5391 
5392 	if (fcport) {
5393 		fcport->id_changed = 1;
5394 		fcport->scan_state = QLA_FCPORT_FOUND;
5395 		fcport->chip_reset = vha->hw->base_qpair->chip_reset;
5396 		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
5397 
5398 		if (pla) {
5399 			if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
5400 				u16 wd3_lo;
5401 
5402 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5403 				fcport->local = 0;
5404 				fcport->loop_id =
5405 					le16_to_cpu(
5406 					    pla->iocb.u.isp24.nport_handle);
5407 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5408 				wd3_lo =
5409 				    le16_to_cpu(
5410 					pla->iocb.u.isp24.u.prli.wd3_lo);
5411 
5412 				if (wd3_lo & BIT_7)
5413 					fcport->conf_compl_supported = 1;
5414 
5415 				if ((wd3_lo & BIT_4) == 0)
5416 					fcport->port_type = FCT_INITIATOR;
5417 				else
5418 					fcport->port_type = FCT_TARGET;
5419 			}
5420 			qlt_plogi_ack_unref(vha, pla);
5421 		} else {
5422 			fc_port_t *dfcp = NULL;
5423 
5424 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5425 			tfcp = qla2x00_find_fcport_by_nportid(vha,
5426 			    &e->u.new_sess.id, 1);
5427 			if (tfcp && (tfcp != fcport)) {
5428 				/*
5429 				 * We have a conflict fcport with same NportID.
5430 				 */
5431 				ql_dbg(ql_dbg_disc, vha, 0xffff,
5432 				    "%s %8phC found conflict b4 add. DS %d LS %d\n",
5433 				    __func__, tfcp->port_name, tfcp->disc_state,
5434 				    tfcp->fw_login_state);
5435 
5436 				switch (tfcp->disc_state) {
5437 				case DSC_DELETED:
5438 					break;
5439 				case DSC_DELETE_PEND:
5440 					fcport->login_pause = 1;
5441 					tfcp->conflict = fcport;
5442 					break;
5443 				default:
5444 					fcport->login_pause = 1;
5445 					tfcp->conflict = fcport;
5446 					dfcp = tfcp;
5447 					break;
5448 				}
5449 			}
5450 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5451 			if (dfcp)
5452 				qlt_schedule_sess_for_deletion(tfcp);
5453 
5454 			if (N2N_TOPO(vha->hw)) {
5455 				fcport->flags &= ~FCF_FABRIC_DEVICE;
5456 				fcport->keep_nport_handle = 1;
5457 				if (vha->flags.nvme_enabled) {
5458 					fcport->fc4_type =
5459 					    (FS_FC4TYPE_NVME | FS_FC4TYPE_FCP);
5460 					fcport->n2n_flag = 1;
5461 				}
5462 				fcport->fw_login_state = 0;
5463 
5464 				schedule_delayed_work(&vha->scan.scan_work, 5);
5465 			} else {
5466 				qla24xx_fcport_handle_login(vha, fcport);
5467 			}
5468 		}
5469 	}
5470 
5471 	if (free_fcport) {
5472 		qla2x00_free_fcport(fcport);
5473 		if (pla) {
5474 			list_del(&pla->list);
5475 			kmem_cache_free(qla_tgt_plogi_cachep, pla);
5476 		}
5477 	}
5478 }
5479 
5480 static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
5481 {
5482 	struct srb *sp = e->u.iosb.sp;
5483 	int rval;
5484 
5485 	rval = qla2x00_start_sp(sp);
5486 	if (rval != QLA_SUCCESS) {
5487 		ql_dbg(ql_dbg_disc, vha, 0x2043,
5488 		    "%s: %s: Re-issue IOCB failed (%d).\n",
5489 		    __func__, sp->name, rval);
5490 		qla24xx_sp_unmap(vha, sp);
5491 	}
5492 }
5493 
5494 void
5495 qla2x00_do_work(struct scsi_qla_host *vha)
5496 {
5497 	struct qla_work_evt *e, *tmp;
5498 	unsigned long flags;
5499 	LIST_HEAD(work);
5500 	int rc;
5501 
5502 	spin_lock_irqsave(&vha->work_lock, flags);
5503 	list_splice_init(&vha->work_list, &work);
5504 	spin_unlock_irqrestore(&vha->work_lock, flags);
5505 
5506 	list_for_each_entry_safe(e, tmp, &work, list) {
5507 		rc = QLA_SUCCESS;
5508 		switch (e->type) {
5509 		case QLA_EVT_AEN:
5510 			fc_host_post_event(vha->host, fc_get_event_number(),
5511 			    e->u.aen.code, e->u.aen.data);
5512 			break;
5513 		case QLA_EVT_IDC_ACK:
5514 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
5515 			break;
5516 		case QLA_EVT_ASYNC_LOGIN:
5517 			qla2x00_async_login(vha, e->u.logio.fcport,
5518 			    e->u.logio.data);
5519 			break;
5520 		case QLA_EVT_ASYNC_LOGOUT:
5521 			rc = qla2x00_async_logout(vha, e->u.logio.fcport);
5522 			break;
5523 		case QLA_EVT_ASYNC_ADISC:
5524 			qla2x00_async_adisc(vha, e->u.logio.fcport,
5525 			    e->u.logio.data);
5526 			break;
5527 		case QLA_EVT_UEVENT:
5528 			qla2x00_uevent_emit(vha, e->u.uevent.code);
5529 			break;
5530 		case QLA_EVT_AENFX:
5531 			qlafx00_process_aen(vha, e);
5532 			break;
5533 		case QLA_EVT_UNMAP:
5534 			qla24xx_sp_unmap(vha, e->u.iosb.sp);
5535 			break;
5536 		case QLA_EVT_RELOGIN:
5537 			qla2x00_relogin(vha);
5538 			break;
5539 		case QLA_EVT_NEW_SESS:
5540 			qla24xx_create_new_sess(vha, e);
5541 			break;
5542 		case QLA_EVT_GPDB:
5543 			qla24xx_async_gpdb(vha, e->u.fcport.fcport,
5544 			    e->u.fcport.opt);
5545 			break;
5546 		case QLA_EVT_PRLI:
5547 			qla24xx_async_prli(vha, e->u.fcport.fcport);
5548 			break;
5549 		case QLA_EVT_GPSC:
5550 			qla24xx_async_gpsc(vha, e->u.fcport.fcport);
5551 			break;
5552 		case QLA_EVT_GNL:
5553 			qla24xx_async_gnl(vha, e->u.fcport.fcport);
5554 			break;
5555 		case QLA_EVT_NACK:
5556 			qla24xx_do_nack_work(vha, e);
5557 			break;
5558 		case QLA_EVT_ASYNC_PRLO:
5559 			rc = qla2x00_async_prlo(vha, e->u.logio.fcport);
5560 			break;
5561 		case QLA_EVT_ASYNC_PRLO_DONE:
5562 			qla2x00_async_prlo_done(vha, e->u.logio.fcport,
5563 			    e->u.logio.data);
5564 			break;
5565 		case QLA_EVT_GPNFT:
5566 			qla24xx_async_gpnft(vha, e->u.gpnft.fc4_type,
5567 			    e->u.gpnft.sp);
5568 			break;
5569 		case QLA_EVT_GPNFT_DONE:
5570 			qla24xx_async_gpnft_done(vha, e->u.iosb.sp);
5571 			break;
5572 		case QLA_EVT_GNNFT_DONE:
5573 			qla24xx_async_gnnft_done(vha, e->u.iosb.sp);
5574 			break;
5575 		case QLA_EVT_GFPNID:
5576 			qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
5577 			break;
5578 		case QLA_EVT_SP_RETRY:
5579 			qla_sp_retry(vha, e);
5580 			break;
5581 		case QLA_EVT_IIDMA:
5582 			qla_do_iidma_work(vha, e->u.fcport.fcport);
5583 			break;
5584 		case QLA_EVT_ELS_PLOGI:
5585 			qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
5586 			    e->u.fcport.fcport, false);
5587 			break;
5588 		case QLA_EVT_SA_REPLACE:
5589 			rc = qla24xx_issue_sa_replace_iocb(vha, e);
5590 			break;
5591 		}
5592 
5593 		if (rc == EAGAIN) {
5594 			/* put 'work' at head of 'vha->work_list' */
5595 			spin_lock_irqsave(&vha->work_lock, flags);
5596 			list_splice(&work, &vha->work_list);
5597 			spin_unlock_irqrestore(&vha->work_lock, flags);
5598 			break;
5599 		}
5600 		list_del_init(&e->list);
5601 		if (e->flags & QLA_EVT_FLAG_FREE)
5602 			kfree(e);
5603 
5604 		/* For each work completed decrement vha ref count */
5605 		QLA_VHA_MARK_NOT_BUSY(vha);
5606 	}
5607 }
5608 
5609 int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
5610 {
5611 	struct qla_work_evt *e;
5612 
5613 	e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
5614 
5615 	if (!e) {
5616 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5617 		return QLA_FUNCTION_FAILED;
5618 	}
5619 
5620 	return qla2x00_post_work(vha, e);
5621 }
5622 
5623 /* Relogins all the fcports of a vport
5624  * Context: dpc thread
5625  */
5626 void qla2x00_relogin(struct scsi_qla_host *vha)
5627 {
5628 	fc_port_t       *fcport;
5629 	int status, relogin_needed = 0;
5630 	struct event_arg ea;
5631 
5632 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5633 		/*
5634 		 * If the port is not ONLINE then try to login
5635 		 * to it if we haven't run out of retries.
5636 		 */
5637 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
5638 		    fcport->login_retry) {
5639 			if (fcport->scan_state != QLA_FCPORT_FOUND ||
5640 			    fcport->disc_state == DSC_LOGIN_AUTH_PEND ||
5641 			    fcport->disc_state == DSC_LOGIN_COMPLETE)
5642 				continue;
5643 
5644 			if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
5645 				fcport->disc_state == DSC_DELETE_PEND) {
5646 				relogin_needed = 1;
5647 			} else {
5648 				if (vha->hw->current_topology != ISP_CFG_NL) {
5649 					memset(&ea, 0, sizeof(ea));
5650 					ea.fcport = fcport;
5651 					qla24xx_handle_relogin_event(vha, &ea);
5652 				} else if (vha->hw->current_topology ==
5653 					 ISP_CFG_NL &&
5654 					IS_QLA2XXX_MIDTYPE(vha->hw)) {
5655 					(void)qla24xx_fcport_handle_login(vha,
5656 									fcport);
5657 				} else if (vha->hw->current_topology ==
5658 				    ISP_CFG_NL) {
5659 					fcport->login_retry--;
5660 					status =
5661 					    qla2x00_local_device_login(vha,
5662 						fcport);
5663 					if (status == QLA_SUCCESS) {
5664 						fcport->old_loop_id =
5665 						    fcport->loop_id;
5666 						ql_dbg(ql_dbg_disc, vha, 0x2003,
5667 						    "Port login OK: logged in ID 0x%x.\n",
5668 						    fcport->loop_id);
5669 						qla2x00_update_fcport
5670 							(vha, fcport);
5671 					} else if (status == 1) {
5672 						set_bit(RELOGIN_NEEDED,
5673 						    &vha->dpc_flags);
5674 						/* retry the login again */
5675 						ql_dbg(ql_dbg_disc, vha, 0x2007,
5676 						    "Retrying %d login again loop_id 0x%x.\n",
5677 						    fcport->login_retry,
5678 						    fcport->loop_id);
5679 					} else {
5680 						fcport->login_retry = 0;
5681 					}
5682 
5683 					if (fcport->login_retry == 0 &&
5684 					    status != QLA_SUCCESS)
5685 						qla2x00_clear_loop_id(fcport);
5686 				}
5687 			}
5688 		}
5689 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5690 			break;
5691 	}
5692 
5693 	if (relogin_needed)
5694 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5695 
5696 	ql_dbg(ql_dbg_disc, vha, 0x400e,
5697 	    "Relogin end.\n");
5698 }
5699 
5700 /* Schedule work on any of the dpc-workqueues */
5701 void
5702 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
5703 {
5704 	struct qla_hw_data *ha = base_vha->hw;
5705 
5706 	switch (work_code) {
5707 	case MBA_IDC_AEN: /* 0x8200 */
5708 		if (ha->dpc_lp_wq)
5709 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
5710 		break;
5711 
5712 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
5713 		if (!ha->flags.nic_core_reset_hdlr_active) {
5714 			if (ha->dpc_hp_wq)
5715 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
5716 		} else
5717 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
5718 			    "NIC Core reset is already active. Skip "
5719 			    "scheduling it again.\n");
5720 		break;
5721 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
5722 		if (ha->dpc_hp_wq)
5723 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
5724 		break;
5725 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
5726 		if (ha->dpc_hp_wq)
5727 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
5728 		break;
5729 	default:
5730 		ql_log(ql_log_warn, base_vha, 0xb05f,
5731 		    "Unknown work-code=0x%x.\n", work_code);
5732 	}
5733 
5734 	return;
5735 }
5736 
5737 /* Work: Perform NIC Core Unrecoverable state handling */
5738 void
5739 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
5740 {
5741 	struct qla_hw_data *ha =
5742 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
5743 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5744 	uint32_t dev_state = 0;
5745 
5746 	qla83xx_idc_lock(base_vha, 0);
5747 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5748 	qla83xx_reset_ownership(base_vha);
5749 	if (ha->flags.nic_core_reset_owner) {
5750 		ha->flags.nic_core_reset_owner = 0;
5751 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5752 		    QLA8XXX_DEV_FAILED);
5753 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
5754 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5755 	}
5756 	qla83xx_idc_unlock(base_vha, 0);
5757 }
5758 
5759 /* Work: Execute IDC state handler */
5760 void
5761 qla83xx_idc_state_handler_work(struct work_struct *work)
5762 {
5763 	struct qla_hw_data *ha =
5764 		container_of(work, struct qla_hw_data, idc_state_handler);
5765 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5766 	uint32_t dev_state = 0;
5767 
5768 	qla83xx_idc_lock(base_vha, 0);
5769 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5770 	if (dev_state == QLA8XXX_DEV_FAILED ||
5771 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
5772 		qla83xx_idc_state_handler(base_vha);
5773 	qla83xx_idc_unlock(base_vha, 0);
5774 }
5775 
5776 static int
5777 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
5778 {
5779 	int rval = QLA_SUCCESS;
5780 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
5781 	uint32_t heart_beat_counter1, heart_beat_counter2;
5782 
5783 	do {
5784 		if (time_after(jiffies, heart_beat_wait)) {
5785 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
5786 			    "Nic Core f/w is not alive.\n");
5787 			rval = QLA_FUNCTION_FAILED;
5788 			break;
5789 		}
5790 
5791 		qla83xx_idc_lock(base_vha, 0);
5792 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5793 		    &heart_beat_counter1);
5794 		qla83xx_idc_unlock(base_vha, 0);
5795 		msleep(100);
5796 		qla83xx_idc_lock(base_vha, 0);
5797 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5798 		    &heart_beat_counter2);
5799 		qla83xx_idc_unlock(base_vha, 0);
5800 	} while (heart_beat_counter1 == heart_beat_counter2);
5801 
5802 	return rval;
5803 }
5804 
5805 /* Work: Perform NIC Core Reset handling */
5806 void
5807 qla83xx_nic_core_reset_work(struct work_struct *work)
5808 {
5809 	struct qla_hw_data *ha =
5810 		container_of(work, struct qla_hw_data, nic_core_reset);
5811 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5812 	uint32_t dev_state = 0;
5813 
5814 	if (IS_QLA2031(ha)) {
5815 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
5816 			ql_log(ql_log_warn, base_vha, 0xb081,
5817 			    "Failed to dump mctp\n");
5818 		return;
5819 	}
5820 
5821 	if (!ha->flags.nic_core_reset_hdlr_active) {
5822 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
5823 			qla83xx_idc_lock(base_vha, 0);
5824 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5825 			    &dev_state);
5826 			qla83xx_idc_unlock(base_vha, 0);
5827 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
5828 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
5829 				    "Nic Core f/w is alive.\n");
5830 				return;
5831 			}
5832 		}
5833 
5834 		ha->flags.nic_core_reset_hdlr_active = 1;
5835 		if (qla83xx_nic_core_reset(base_vha)) {
5836 			/* NIC Core reset failed. */
5837 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
5838 			    "NIC Core reset failed.\n");
5839 		}
5840 		ha->flags.nic_core_reset_hdlr_active = 0;
5841 	}
5842 }
5843 
5844 /* Work: Handle 8200 IDC aens */
5845 void
5846 qla83xx_service_idc_aen(struct work_struct *work)
5847 {
5848 	struct qla_hw_data *ha =
5849 		container_of(work, struct qla_hw_data, idc_aen);
5850 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5851 	uint32_t dev_state, idc_control;
5852 
5853 	qla83xx_idc_lock(base_vha, 0);
5854 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5855 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
5856 	qla83xx_idc_unlock(base_vha, 0);
5857 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
5858 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
5859 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
5860 			    "Application requested NIC Core Reset.\n");
5861 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5862 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
5863 		    QLA_SUCCESS) {
5864 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
5865 			    "Other protocol driver requested NIC Core Reset.\n");
5866 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5867 		}
5868 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
5869 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
5870 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5871 	}
5872 }
5873 
5874 /*
5875  * Control the frequency of IDC lock retries
5876  */
5877 #define QLA83XX_WAIT_LOGIC_MS	100
5878 
5879 static int
5880 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
5881 {
5882 	int rval;
5883 	uint32_t data;
5884 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
5885 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
5886 	struct qla_hw_data *ha = base_vha->hw;
5887 
5888 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
5889 	    "Trying force recovery of the IDC lock.\n");
5890 
5891 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
5892 	if (rval)
5893 		return rval;
5894 
5895 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
5896 		return QLA_SUCCESS;
5897 	} else {
5898 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
5899 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5900 		    data);
5901 		if (rval)
5902 			return rval;
5903 
5904 		msleep(200);
5905 
5906 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5907 		    &data);
5908 		if (rval)
5909 			return rval;
5910 
5911 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
5912 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
5913 					~(idc_lck_rcvry_stage_mask));
5914 			rval = qla83xx_wr_reg(base_vha,
5915 			    QLA83XX_IDC_LOCK_RECOVERY, data);
5916 			if (rval)
5917 				return rval;
5918 
5919 			/* Forcefully perform IDC UnLock */
5920 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
5921 			    &data);
5922 			if (rval)
5923 				return rval;
5924 			/* Clear lock-id by setting 0xff */
5925 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5926 			    0xff);
5927 			if (rval)
5928 				return rval;
5929 			/* Clear lock-recovery by setting 0x0 */
5930 			rval = qla83xx_wr_reg(base_vha,
5931 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
5932 			if (rval)
5933 				return rval;
5934 		} else
5935 			return QLA_SUCCESS;
5936 	}
5937 
5938 	return rval;
5939 }
5940 
5941 static int
5942 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
5943 {
5944 	int rval = QLA_SUCCESS;
5945 	uint32_t o_drv_lockid, n_drv_lockid;
5946 	unsigned long lock_recovery_timeout;
5947 
5948 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
5949 retry_lockid:
5950 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
5951 	if (rval)
5952 		goto exit;
5953 
5954 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
5955 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
5956 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
5957 			return QLA_SUCCESS;
5958 		else
5959 			return QLA_FUNCTION_FAILED;
5960 	}
5961 
5962 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
5963 	if (rval)
5964 		goto exit;
5965 
5966 	if (o_drv_lockid == n_drv_lockid) {
5967 		msleep(QLA83XX_WAIT_LOGIC_MS);
5968 		goto retry_lockid;
5969 	} else
5970 		return QLA_SUCCESS;
5971 
5972 exit:
5973 	return rval;
5974 }
5975 
5976 /*
5977  * Context: task, can sleep
5978  */
5979 void
5980 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
5981 {
5982 	uint32_t data;
5983 	uint32_t lock_owner;
5984 	struct qla_hw_data *ha = base_vha->hw;
5985 
5986 	might_sleep();
5987 
5988 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
5989 retry_lock:
5990 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
5991 	    == QLA_SUCCESS) {
5992 		if (data) {
5993 			/* Setting lock-id to our function-number */
5994 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5995 			    ha->portnum);
5996 		} else {
5997 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5998 			    &lock_owner);
5999 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
6000 			    "Failed to acquire IDC lock, acquired by %d, "
6001 			    "retrying...\n", lock_owner);
6002 
6003 			/* Retry/Perform IDC-Lock recovery */
6004 			if (qla83xx_idc_lock_recovery(base_vha)
6005 			    == QLA_SUCCESS) {
6006 				msleep(QLA83XX_WAIT_LOGIC_MS);
6007 				goto retry_lock;
6008 			} else
6009 				ql_log(ql_log_warn, base_vha, 0xb075,
6010 				    "IDC Lock recovery FAILED.\n");
6011 		}
6012 
6013 	}
6014 
6015 	return;
6016 }
6017 
6018 static bool
6019 qla25xx_rdp_rsp_reduce_size(struct scsi_qla_host *vha,
6020 	struct purex_entry_24xx *purex)
6021 {
6022 	char fwstr[16];
6023 	u32 sid = purex->s_id[2] << 16 | purex->s_id[1] << 8 | purex->s_id[0];
6024 	struct port_database_24xx *pdb;
6025 
6026 	/* Domain Controller is always logged-out. */
6027 	/* if RDP request is not from Domain Controller: */
6028 	if (sid != 0xfffc01)
6029 		return false;
6030 
6031 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: s_id=%#x\n", __func__, sid);
6032 
6033 	pdb = kzalloc(sizeof(*pdb), GFP_KERNEL);
6034 	if (!pdb) {
6035 		ql_dbg(ql_dbg_init, vha, 0x0181,
6036 		    "%s: Failed allocate pdb\n", __func__);
6037 	} else if (qla24xx_get_port_database(vha,
6038 				le16_to_cpu(purex->nport_handle), pdb)) {
6039 		ql_dbg(ql_dbg_init, vha, 0x0181,
6040 		    "%s: Failed get pdb sid=%x\n", __func__, sid);
6041 	} else if (pdb->current_login_state != PDS_PLOGI_COMPLETE &&
6042 	    pdb->current_login_state != PDS_PRLI_COMPLETE) {
6043 		ql_dbg(ql_dbg_init, vha, 0x0181,
6044 		    "%s: Port not logged in sid=%#x\n", __func__, sid);
6045 	} else {
6046 		/* RDP request is from logged in port */
6047 		kfree(pdb);
6048 		return false;
6049 	}
6050 	kfree(pdb);
6051 
6052 	vha->hw->isp_ops->fw_version_str(vha, fwstr, sizeof(fwstr));
6053 	fwstr[strcspn(fwstr, " ")] = 0;
6054 	/* if FW version allows RDP response length upto 2048 bytes: */
6055 	if (strcmp(fwstr, "8.09.00") > 0 || strcmp(fwstr, "8.05.65") == 0)
6056 		return false;
6057 
6058 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: fw=%s\n", __func__, fwstr);
6059 
6060 	/* RDP response length is to be reduced to maximum 256 bytes */
6061 	return true;
6062 }
6063 
6064 /*
6065  * Function Name: qla24xx_process_purex_iocb
6066  *
6067  * Description:
6068  * Prepare a RDP response and send to Fabric switch
6069  *
6070  * PARAMETERS:
6071  * vha:	SCSI qla host
6072  * purex: RDP request received by HBA
6073  */
6074 void qla24xx_process_purex_rdp(struct scsi_qla_host *vha,
6075 			       struct purex_item *item)
6076 {
6077 	struct qla_hw_data *ha = vha->hw;
6078 	struct purex_entry_24xx *purex =
6079 	    (struct purex_entry_24xx *)&item->iocb;
6080 	dma_addr_t rsp_els_dma;
6081 	dma_addr_t rsp_payload_dma;
6082 	dma_addr_t stat_dma;
6083 	dma_addr_t sfp_dma;
6084 	struct els_entry_24xx *rsp_els = NULL;
6085 	struct rdp_rsp_payload *rsp_payload = NULL;
6086 	struct link_statistics *stat = NULL;
6087 	uint8_t *sfp = NULL;
6088 	uint16_t sfp_flags = 0;
6089 	uint rsp_payload_length = sizeof(*rsp_payload);
6090 	int rval;
6091 
6092 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0180,
6093 	    "%s: Enter\n", __func__);
6094 
6095 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0181,
6096 	    "-------- ELS REQ -------\n");
6097 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0182,
6098 	    purex, sizeof(*purex));
6099 
6100 	if (qla25xx_rdp_rsp_reduce_size(vha, purex)) {
6101 		rsp_payload_length =
6102 		    offsetof(typeof(*rsp_payload), optical_elmt_desc);
6103 		ql_dbg(ql_dbg_init, vha, 0x0181,
6104 		    "Reducing RSP payload length to %u bytes...\n",
6105 		    rsp_payload_length);
6106 	}
6107 
6108 	rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6109 	    &rsp_els_dma, GFP_KERNEL);
6110 	if (!rsp_els) {
6111 		ql_log(ql_log_warn, vha, 0x0183,
6112 		    "Failed allocate dma buffer ELS RSP.\n");
6113 		goto dealloc;
6114 	}
6115 
6116 	rsp_payload = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6117 	    &rsp_payload_dma, GFP_KERNEL);
6118 	if (!rsp_payload) {
6119 		ql_log(ql_log_warn, vha, 0x0184,
6120 		    "Failed allocate dma buffer ELS RSP payload.\n");
6121 		goto dealloc;
6122 	}
6123 
6124 	sfp = dma_alloc_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6125 	    &sfp_dma, GFP_KERNEL);
6126 
6127 	stat = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stat),
6128 	    &stat_dma, GFP_KERNEL);
6129 
6130 	/* Prepare Response IOCB */
6131 	rsp_els->entry_type = ELS_IOCB_TYPE;
6132 	rsp_els->entry_count = 1;
6133 	rsp_els->sys_define = 0;
6134 	rsp_els->entry_status = 0;
6135 	rsp_els->handle = 0;
6136 	rsp_els->nport_handle = purex->nport_handle;
6137 	rsp_els->tx_dsd_count = cpu_to_le16(1);
6138 	rsp_els->vp_index = purex->vp_idx;
6139 	rsp_els->sof_type = EST_SOFI3;
6140 	rsp_els->rx_xchg_address = purex->rx_xchg_addr;
6141 	rsp_els->rx_dsd_count = 0;
6142 	rsp_els->opcode = purex->els_frame_payload[0];
6143 
6144 	rsp_els->d_id[0] = purex->s_id[0];
6145 	rsp_els->d_id[1] = purex->s_id[1];
6146 	rsp_els->d_id[2] = purex->s_id[2];
6147 
6148 	rsp_els->control_flags = cpu_to_le16(EPD_ELS_ACC);
6149 	rsp_els->rx_byte_count = 0;
6150 	rsp_els->tx_byte_count = cpu_to_le32(rsp_payload_length);
6151 
6152 	put_unaligned_le64(rsp_payload_dma, &rsp_els->tx_address);
6153 	rsp_els->tx_len = rsp_els->tx_byte_count;
6154 
6155 	rsp_els->rx_address = 0;
6156 	rsp_els->rx_len = 0;
6157 
6158 	/* Prepare Response Payload */
6159 	rsp_payload->hdr.cmd = cpu_to_be32(0x2 << 24); /* LS_ACC */
6160 	rsp_payload->hdr.len = cpu_to_be32(le32_to_cpu(rsp_els->tx_byte_count) -
6161 					   sizeof(rsp_payload->hdr));
6162 
6163 	/* Link service Request Info Descriptor */
6164 	rsp_payload->ls_req_info_desc.desc_tag = cpu_to_be32(0x1);
6165 	rsp_payload->ls_req_info_desc.desc_len =
6166 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc));
6167 	rsp_payload->ls_req_info_desc.req_payload_word_0 =
6168 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6169 
6170 	/* Link service Request Info Descriptor 2 */
6171 	rsp_payload->ls_req_info_desc2.desc_tag = cpu_to_be32(0x1);
6172 	rsp_payload->ls_req_info_desc2.desc_len =
6173 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc2));
6174 	rsp_payload->ls_req_info_desc2.req_payload_word_0 =
6175 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6176 
6177 
6178 	rsp_payload->sfp_diag_desc.desc_tag = cpu_to_be32(0x10000);
6179 	rsp_payload->sfp_diag_desc.desc_len =
6180 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->sfp_diag_desc));
6181 
6182 	if (sfp) {
6183 		/* SFP Flags */
6184 		memset(sfp, 0, SFP_RTDI_LEN);
6185 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x7, 2, 0);
6186 		if (!rval) {
6187 			/* SFP Flags bits 3-0: Port Tx Laser Type */
6188 			if (sfp[0] & BIT_2 || sfp[1] & (BIT_6|BIT_5))
6189 				sfp_flags |= BIT_0; /* short wave */
6190 			else if (sfp[0] & BIT_1)
6191 				sfp_flags |= BIT_1; /* long wave 1310nm */
6192 			else if (sfp[1] & BIT_4)
6193 				sfp_flags |= BIT_1|BIT_0; /* long wave 1550nm */
6194 		}
6195 
6196 		/* SFP Type */
6197 		memset(sfp, 0, SFP_RTDI_LEN);
6198 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x0, 1, 0);
6199 		if (!rval) {
6200 			sfp_flags |= BIT_4; /* optical */
6201 			if (sfp[0] == 0x3)
6202 				sfp_flags |= BIT_6; /* sfp+ */
6203 		}
6204 
6205 		rsp_payload->sfp_diag_desc.sfp_flags = cpu_to_be16(sfp_flags);
6206 
6207 		/* SFP Diagnostics */
6208 		memset(sfp, 0, SFP_RTDI_LEN);
6209 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0x60, 10, 0);
6210 		if (!rval) {
6211 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6212 			rsp_payload->sfp_diag_desc.temperature = trx[0];
6213 			rsp_payload->sfp_diag_desc.vcc = trx[1];
6214 			rsp_payload->sfp_diag_desc.tx_bias = trx[2];
6215 			rsp_payload->sfp_diag_desc.tx_power = trx[3];
6216 			rsp_payload->sfp_diag_desc.rx_power = trx[4];
6217 		}
6218 	}
6219 
6220 	/* Port Speed Descriptor */
6221 	rsp_payload->port_speed_desc.desc_tag = cpu_to_be32(0x10001);
6222 	rsp_payload->port_speed_desc.desc_len =
6223 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_speed_desc));
6224 	rsp_payload->port_speed_desc.speed_capab = cpu_to_be16(
6225 	    qla25xx_fdmi_port_speed_capability(ha));
6226 	rsp_payload->port_speed_desc.operating_speed = cpu_to_be16(
6227 	    qla25xx_fdmi_port_speed_currently(ha));
6228 
6229 	/* Link Error Status Descriptor */
6230 	rsp_payload->ls_err_desc.desc_tag = cpu_to_be32(0x10002);
6231 	rsp_payload->ls_err_desc.desc_len =
6232 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_err_desc));
6233 
6234 	if (stat) {
6235 		rval = qla24xx_get_isp_stats(vha, stat, stat_dma, 0);
6236 		if (!rval) {
6237 			rsp_payload->ls_err_desc.link_fail_cnt =
6238 			    cpu_to_be32(le32_to_cpu(stat->link_fail_cnt));
6239 			rsp_payload->ls_err_desc.loss_sync_cnt =
6240 			    cpu_to_be32(le32_to_cpu(stat->loss_sync_cnt));
6241 			rsp_payload->ls_err_desc.loss_sig_cnt =
6242 			    cpu_to_be32(le32_to_cpu(stat->loss_sig_cnt));
6243 			rsp_payload->ls_err_desc.prim_seq_err_cnt =
6244 			    cpu_to_be32(le32_to_cpu(stat->prim_seq_err_cnt));
6245 			rsp_payload->ls_err_desc.inval_xmit_word_cnt =
6246 			    cpu_to_be32(le32_to_cpu(stat->inval_xmit_word_cnt));
6247 			rsp_payload->ls_err_desc.inval_crc_cnt =
6248 			    cpu_to_be32(le32_to_cpu(stat->inval_crc_cnt));
6249 			rsp_payload->ls_err_desc.pn_port_phy_type |= BIT_6;
6250 		}
6251 	}
6252 
6253 	/* Portname Descriptor */
6254 	rsp_payload->port_name_diag_desc.desc_tag = cpu_to_be32(0x10003);
6255 	rsp_payload->port_name_diag_desc.desc_len =
6256 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_diag_desc));
6257 	memcpy(rsp_payload->port_name_diag_desc.WWNN,
6258 	    vha->node_name,
6259 	    sizeof(rsp_payload->port_name_diag_desc.WWNN));
6260 	memcpy(rsp_payload->port_name_diag_desc.WWPN,
6261 	    vha->port_name,
6262 	    sizeof(rsp_payload->port_name_diag_desc.WWPN));
6263 
6264 	/* F-Port Portname Descriptor */
6265 	rsp_payload->port_name_direct_desc.desc_tag = cpu_to_be32(0x10003);
6266 	rsp_payload->port_name_direct_desc.desc_len =
6267 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_direct_desc));
6268 	memcpy(rsp_payload->port_name_direct_desc.WWNN,
6269 	    vha->fabric_node_name,
6270 	    sizeof(rsp_payload->port_name_direct_desc.WWNN));
6271 	memcpy(rsp_payload->port_name_direct_desc.WWPN,
6272 	    vha->fabric_port_name,
6273 	    sizeof(rsp_payload->port_name_direct_desc.WWPN));
6274 
6275 	/* Bufer Credit Descriptor */
6276 	rsp_payload->buffer_credit_desc.desc_tag = cpu_to_be32(0x10006);
6277 	rsp_payload->buffer_credit_desc.desc_len =
6278 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->buffer_credit_desc));
6279 	rsp_payload->buffer_credit_desc.fcport_b2b = 0;
6280 	rsp_payload->buffer_credit_desc.attached_fcport_b2b = cpu_to_be32(0);
6281 	rsp_payload->buffer_credit_desc.fcport_rtt = cpu_to_be32(0);
6282 
6283 	if (ha->flags.plogi_template_valid) {
6284 		uint32_t tmp =
6285 		be16_to_cpu(ha->plogi_els_payld.fl_csp.sp_bb_cred);
6286 		rsp_payload->buffer_credit_desc.fcport_b2b = cpu_to_be32(tmp);
6287 	}
6288 
6289 	if (rsp_payload_length < sizeof(*rsp_payload))
6290 		goto send;
6291 
6292 	/* Optical Element Descriptor, Temperature */
6293 	rsp_payload->optical_elmt_desc[0].desc_tag = cpu_to_be32(0x10007);
6294 	rsp_payload->optical_elmt_desc[0].desc_len =
6295 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6296 	/* Optical Element Descriptor, Voltage */
6297 	rsp_payload->optical_elmt_desc[1].desc_tag = cpu_to_be32(0x10007);
6298 	rsp_payload->optical_elmt_desc[1].desc_len =
6299 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6300 	/* Optical Element Descriptor, Tx Bias Current */
6301 	rsp_payload->optical_elmt_desc[2].desc_tag = cpu_to_be32(0x10007);
6302 	rsp_payload->optical_elmt_desc[2].desc_len =
6303 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6304 	/* Optical Element Descriptor, Tx Power */
6305 	rsp_payload->optical_elmt_desc[3].desc_tag = cpu_to_be32(0x10007);
6306 	rsp_payload->optical_elmt_desc[3].desc_len =
6307 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6308 	/* Optical Element Descriptor, Rx Power */
6309 	rsp_payload->optical_elmt_desc[4].desc_tag = cpu_to_be32(0x10007);
6310 	rsp_payload->optical_elmt_desc[4].desc_len =
6311 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6312 
6313 	if (sfp) {
6314 		memset(sfp, 0, SFP_RTDI_LEN);
6315 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0, 64, 0);
6316 		if (!rval) {
6317 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6318 
6319 			/* Optical Element Descriptor, Temperature */
6320 			rsp_payload->optical_elmt_desc[0].high_alarm = trx[0];
6321 			rsp_payload->optical_elmt_desc[0].low_alarm = trx[1];
6322 			rsp_payload->optical_elmt_desc[0].high_warn = trx[2];
6323 			rsp_payload->optical_elmt_desc[0].low_warn = trx[3];
6324 			rsp_payload->optical_elmt_desc[0].element_flags =
6325 			    cpu_to_be32(1 << 28);
6326 
6327 			/* Optical Element Descriptor, Voltage */
6328 			rsp_payload->optical_elmt_desc[1].high_alarm = trx[4];
6329 			rsp_payload->optical_elmt_desc[1].low_alarm = trx[5];
6330 			rsp_payload->optical_elmt_desc[1].high_warn = trx[6];
6331 			rsp_payload->optical_elmt_desc[1].low_warn = trx[7];
6332 			rsp_payload->optical_elmt_desc[1].element_flags =
6333 			    cpu_to_be32(2 << 28);
6334 
6335 			/* Optical Element Descriptor, Tx Bias Current */
6336 			rsp_payload->optical_elmt_desc[2].high_alarm = trx[8];
6337 			rsp_payload->optical_elmt_desc[2].low_alarm = trx[9];
6338 			rsp_payload->optical_elmt_desc[2].high_warn = trx[10];
6339 			rsp_payload->optical_elmt_desc[2].low_warn = trx[11];
6340 			rsp_payload->optical_elmt_desc[2].element_flags =
6341 			    cpu_to_be32(3 << 28);
6342 
6343 			/* Optical Element Descriptor, Tx Power */
6344 			rsp_payload->optical_elmt_desc[3].high_alarm = trx[12];
6345 			rsp_payload->optical_elmt_desc[3].low_alarm = trx[13];
6346 			rsp_payload->optical_elmt_desc[3].high_warn = trx[14];
6347 			rsp_payload->optical_elmt_desc[3].low_warn = trx[15];
6348 			rsp_payload->optical_elmt_desc[3].element_flags =
6349 			    cpu_to_be32(4 << 28);
6350 
6351 			/* Optical Element Descriptor, Rx Power */
6352 			rsp_payload->optical_elmt_desc[4].high_alarm = trx[16];
6353 			rsp_payload->optical_elmt_desc[4].low_alarm = trx[17];
6354 			rsp_payload->optical_elmt_desc[4].high_warn = trx[18];
6355 			rsp_payload->optical_elmt_desc[4].low_warn = trx[19];
6356 			rsp_payload->optical_elmt_desc[4].element_flags =
6357 			    cpu_to_be32(5 << 28);
6358 		}
6359 
6360 		memset(sfp, 0, SFP_RTDI_LEN);
6361 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 112, 64, 0);
6362 		if (!rval) {
6363 			/* Temperature high/low alarm/warning */
6364 			rsp_payload->optical_elmt_desc[0].element_flags |=
6365 			    cpu_to_be32(
6366 				(sfp[0] >> 7 & 1) << 3 |
6367 				(sfp[0] >> 6 & 1) << 2 |
6368 				(sfp[4] >> 7 & 1) << 1 |
6369 				(sfp[4] >> 6 & 1) << 0);
6370 
6371 			/* Voltage high/low alarm/warning */
6372 			rsp_payload->optical_elmt_desc[1].element_flags |=
6373 			    cpu_to_be32(
6374 				(sfp[0] >> 5 & 1) << 3 |
6375 				(sfp[0] >> 4 & 1) << 2 |
6376 				(sfp[4] >> 5 & 1) << 1 |
6377 				(sfp[4] >> 4 & 1) << 0);
6378 
6379 			/* Tx Bias Current high/low alarm/warning */
6380 			rsp_payload->optical_elmt_desc[2].element_flags |=
6381 			    cpu_to_be32(
6382 				(sfp[0] >> 3 & 1) << 3 |
6383 				(sfp[0] >> 2 & 1) << 2 |
6384 				(sfp[4] >> 3 & 1) << 1 |
6385 				(sfp[4] >> 2 & 1) << 0);
6386 
6387 			/* Tx Power high/low alarm/warning */
6388 			rsp_payload->optical_elmt_desc[3].element_flags |=
6389 			    cpu_to_be32(
6390 				(sfp[0] >> 1 & 1) << 3 |
6391 				(sfp[0] >> 0 & 1) << 2 |
6392 				(sfp[4] >> 1 & 1) << 1 |
6393 				(sfp[4] >> 0 & 1) << 0);
6394 
6395 			/* Rx Power high/low alarm/warning */
6396 			rsp_payload->optical_elmt_desc[4].element_flags |=
6397 			    cpu_to_be32(
6398 				(sfp[1] >> 7 & 1) << 3 |
6399 				(sfp[1] >> 6 & 1) << 2 |
6400 				(sfp[5] >> 7 & 1) << 1 |
6401 				(sfp[5] >> 6 & 1) << 0);
6402 		}
6403 	}
6404 
6405 	/* Optical Product Data Descriptor */
6406 	rsp_payload->optical_prod_desc.desc_tag = cpu_to_be32(0x10008);
6407 	rsp_payload->optical_prod_desc.desc_len =
6408 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->optical_prod_desc));
6409 
6410 	if (sfp) {
6411 		memset(sfp, 0, SFP_RTDI_LEN);
6412 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 20, 64, 0);
6413 		if (!rval) {
6414 			memcpy(rsp_payload->optical_prod_desc.vendor_name,
6415 			    sfp + 0,
6416 			    sizeof(rsp_payload->optical_prod_desc.vendor_name));
6417 			memcpy(rsp_payload->optical_prod_desc.part_number,
6418 			    sfp + 20,
6419 			    sizeof(rsp_payload->optical_prod_desc.part_number));
6420 			memcpy(rsp_payload->optical_prod_desc.revision,
6421 			    sfp + 36,
6422 			    sizeof(rsp_payload->optical_prod_desc.revision));
6423 			memcpy(rsp_payload->optical_prod_desc.serial_number,
6424 			    sfp + 48,
6425 			    sizeof(rsp_payload->optical_prod_desc.serial_number));
6426 		}
6427 
6428 		memset(sfp, 0, SFP_RTDI_LEN);
6429 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 84, 8, 0);
6430 		if (!rval) {
6431 			memcpy(rsp_payload->optical_prod_desc.date,
6432 			    sfp + 0,
6433 			    sizeof(rsp_payload->optical_prod_desc.date));
6434 		}
6435 	}
6436 
6437 send:
6438 	ql_dbg(ql_dbg_init, vha, 0x0183,
6439 	    "Sending ELS Response to RDP Request...\n");
6440 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0184,
6441 	    "-------- ELS RSP -------\n");
6442 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0185,
6443 	    rsp_els, sizeof(*rsp_els));
6444 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0186,
6445 	    "-------- ELS RSP PAYLOAD -------\n");
6446 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0187,
6447 	    rsp_payload, rsp_payload_length);
6448 
6449 	rval = qla2x00_issue_iocb(vha, rsp_els, rsp_els_dma, 0);
6450 
6451 	if (rval) {
6452 		ql_log(ql_log_warn, vha, 0x0188,
6453 		    "%s: iocb failed to execute -> %x\n", __func__, rval);
6454 	} else if (rsp_els->comp_status) {
6455 		ql_log(ql_log_warn, vha, 0x0189,
6456 		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
6457 		    __func__, rsp_els->comp_status,
6458 		    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
6459 	} else {
6460 		ql_dbg(ql_dbg_init, vha, 0x018a, "%s: done.\n", __func__);
6461 	}
6462 
6463 dealloc:
6464 	if (stat)
6465 		dma_free_coherent(&ha->pdev->dev, sizeof(*stat),
6466 		    stat, stat_dma);
6467 	if (sfp)
6468 		dma_free_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6469 		    sfp, sfp_dma);
6470 	if (rsp_payload)
6471 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6472 		    rsp_payload, rsp_payload_dma);
6473 	if (rsp_els)
6474 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6475 		    rsp_els, rsp_els_dma);
6476 }
6477 
6478 void
6479 qla24xx_free_purex_item(struct purex_item *item)
6480 {
6481 	if (item == &item->vha->default_item)
6482 		memset(&item->vha->default_item, 0, sizeof(struct purex_item));
6483 	else
6484 		kfree(item);
6485 }
6486 
6487 void qla24xx_process_purex_list(struct purex_list *list)
6488 {
6489 	struct list_head head = LIST_HEAD_INIT(head);
6490 	struct purex_item *item, *next;
6491 	ulong flags;
6492 
6493 	spin_lock_irqsave(&list->lock, flags);
6494 	list_splice_init(&list->head, &head);
6495 	spin_unlock_irqrestore(&list->lock, flags);
6496 
6497 	list_for_each_entry_safe(item, next, &head, list) {
6498 		list_del(&item->list);
6499 		item->process_item(item->vha, item);
6500 		qla24xx_free_purex_item(item);
6501 	}
6502 }
6503 
6504 /*
6505  * Context: task, can sleep
6506  */
6507 void
6508 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
6509 {
6510 #if 0
6511 	uint16_t options = (requester_id << 15) | BIT_7;
6512 #endif
6513 	uint16_t retry;
6514 	uint32_t data;
6515 	struct qla_hw_data *ha = base_vha->hw;
6516 
6517 	might_sleep();
6518 
6519 	/* IDC-unlock implementation using driver-unlock/lock-id
6520 	 * remote registers
6521 	 */
6522 	retry = 0;
6523 retry_unlock:
6524 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
6525 	    == QLA_SUCCESS) {
6526 		if (data == ha->portnum) {
6527 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
6528 			/* Clearing lock-id by setting 0xff */
6529 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
6530 		} else if (retry < 10) {
6531 			/* SV: XXX: IDC unlock retrying needed here? */
6532 
6533 			/* Retry for IDC-unlock */
6534 			msleep(QLA83XX_WAIT_LOGIC_MS);
6535 			retry++;
6536 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
6537 			    "Failed to release IDC lock, retrying=%d\n", retry);
6538 			goto retry_unlock;
6539 		}
6540 	} else if (retry < 10) {
6541 		/* Retry for IDC-unlock */
6542 		msleep(QLA83XX_WAIT_LOGIC_MS);
6543 		retry++;
6544 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
6545 		    "Failed to read drv-lockid, retrying=%d\n", retry);
6546 		goto retry_unlock;
6547 	}
6548 
6549 	return;
6550 
6551 #if 0
6552 	/* XXX: IDC-unlock implementation using access-control mbx */
6553 	retry = 0;
6554 retry_unlock2:
6555 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
6556 		if (retry < 10) {
6557 			/* Retry for IDC-unlock */
6558 			msleep(QLA83XX_WAIT_LOGIC_MS);
6559 			retry++;
6560 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
6561 			    "Failed to release IDC lock, retrying=%d\n", retry);
6562 			goto retry_unlock2;
6563 		}
6564 	}
6565 
6566 	return;
6567 #endif
6568 }
6569 
6570 int
6571 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6572 {
6573 	int rval = QLA_SUCCESS;
6574 	struct qla_hw_data *ha = vha->hw;
6575 	uint32_t drv_presence;
6576 
6577 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6578 	if (rval == QLA_SUCCESS) {
6579 		drv_presence |= (1 << ha->portnum);
6580 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6581 		    drv_presence);
6582 	}
6583 
6584 	return rval;
6585 }
6586 
6587 int
6588 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6589 {
6590 	int rval = QLA_SUCCESS;
6591 
6592 	qla83xx_idc_lock(vha, 0);
6593 	rval = __qla83xx_set_drv_presence(vha);
6594 	qla83xx_idc_unlock(vha, 0);
6595 
6596 	return rval;
6597 }
6598 
6599 int
6600 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6601 {
6602 	int rval = QLA_SUCCESS;
6603 	struct qla_hw_data *ha = vha->hw;
6604 	uint32_t drv_presence;
6605 
6606 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6607 	if (rval == QLA_SUCCESS) {
6608 		drv_presence &= ~(1 << ha->portnum);
6609 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6610 		    drv_presence);
6611 	}
6612 
6613 	return rval;
6614 }
6615 
6616 int
6617 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6618 {
6619 	int rval = QLA_SUCCESS;
6620 
6621 	qla83xx_idc_lock(vha, 0);
6622 	rval = __qla83xx_clear_drv_presence(vha);
6623 	qla83xx_idc_unlock(vha, 0);
6624 
6625 	return rval;
6626 }
6627 
6628 static void
6629 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
6630 {
6631 	struct qla_hw_data *ha = vha->hw;
6632 	uint32_t drv_ack, drv_presence;
6633 	unsigned long ack_timeout;
6634 
6635 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
6636 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
6637 	while (1) {
6638 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6639 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6640 		if ((drv_ack & drv_presence) == drv_presence)
6641 			break;
6642 
6643 		if (time_after_eq(jiffies, ack_timeout)) {
6644 			ql_log(ql_log_warn, vha, 0xb067,
6645 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
6646 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
6647 			/*
6648 			 * The function(s) which did not ack in time are forced
6649 			 * to withdraw any further participation in the IDC
6650 			 * reset.
6651 			 */
6652 			if (drv_ack != drv_presence)
6653 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6654 				    drv_ack);
6655 			break;
6656 		}
6657 
6658 		qla83xx_idc_unlock(vha, 0);
6659 		msleep(1000);
6660 		qla83xx_idc_lock(vha, 0);
6661 	}
6662 
6663 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
6664 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
6665 }
6666 
6667 static int
6668 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
6669 {
6670 	int rval = QLA_SUCCESS;
6671 	uint32_t idc_control;
6672 
6673 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
6674 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
6675 
6676 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
6677 	__qla83xx_get_idc_control(vha, &idc_control);
6678 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
6679 	__qla83xx_set_idc_control(vha, 0);
6680 
6681 	qla83xx_idc_unlock(vha, 0);
6682 	rval = qla83xx_restart_nic_firmware(vha);
6683 	qla83xx_idc_lock(vha, 0);
6684 
6685 	if (rval != QLA_SUCCESS) {
6686 		ql_log(ql_log_fatal, vha, 0xb06a,
6687 		    "Failed to restart NIC f/w.\n");
6688 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
6689 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
6690 	} else {
6691 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
6692 		    "Success in restarting nic f/w.\n");
6693 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
6694 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
6695 	}
6696 
6697 	return rval;
6698 }
6699 
6700 /* Assumes idc_lock always held on entry */
6701 int
6702 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
6703 {
6704 	struct qla_hw_data *ha = base_vha->hw;
6705 	int rval = QLA_SUCCESS;
6706 	unsigned long dev_init_timeout;
6707 	uint32_t dev_state;
6708 
6709 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
6710 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
6711 
6712 	while (1) {
6713 
6714 		if (time_after_eq(jiffies, dev_init_timeout)) {
6715 			ql_log(ql_log_warn, base_vha, 0xb06e,
6716 			    "Initialization TIMEOUT!\n");
6717 			/* Init timeout. Disable further NIC Core
6718 			 * communication.
6719 			 */
6720 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
6721 				QLA8XXX_DEV_FAILED);
6722 			ql_log(ql_log_info, base_vha, 0xb06f,
6723 			    "HW State: FAILED.\n");
6724 		}
6725 
6726 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6727 		switch (dev_state) {
6728 		case QLA8XXX_DEV_READY:
6729 			if (ha->flags.nic_core_reset_owner)
6730 				qla83xx_idc_audit(base_vha,
6731 				    IDC_AUDIT_COMPLETION);
6732 			ha->flags.nic_core_reset_owner = 0;
6733 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
6734 			    "Reset_owner reset by 0x%x.\n",
6735 			    ha->portnum);
6736 			goto exit;
6737 		case QLA8XXX_DEV_COLD:
6738 			if (ha->flags.nic_core_reset_owner)
6739 				rval = qla83xx_device_bootstrap(base_vha);
6740 			else {
6741 			/* Wait for AEN to change device-state */
6742 				qla83xx_idc_unlock(base_vha, 0);
6743 				msleep(1000);
6744 				qla83xx_idc_lock(base_vha, 0);
6745 			}
6746 			break;
6747 		case QLA8XXX_DEV_INITIALIZING:
6748 			/* Wait for AEN to change device-state */
6749 			qla83xx_idc_unlock(base_vha, 0);
6750 			msleep(1000);
6751 			qla83xx_idc_lock(base_vha, 0);
6752 			break;
6753 		case QLA8XXX_DEV_NEED_RESET:
6754 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
6755 				qla83xx_need_reset_handler(base_vha);
6756 			else {
6757 				/* Wait for AEN to change device-state */
6758 				qla83xx_idc_unlock(base_vha, 0);
6759 				msleep(1000);
6760 				qla83xx_idc_lock(base_vha, 0);
6761 			}
6762 			/* reset timeout value after need reset handler */
6763 			dev_init_timeout = jiffies +
6764 			    (ha->fcoe_dev_init_timeout * HZ);
6765 			break;
6766 		case QLA8XXX_DEV_NEED_QUIESCENT:
6767 			/* XXX: DEBUG for now */
6768 			qla83xx_idc_unlock(base_vha, 0);
6769 			msleep(1000);
6770 			qla83xx_idc_lock(base_vha, 0);
6771 			break;
6772 		case QLA8XXX_DEV_QUIESCENT:
6773 			/* XXX: DEBUG for now */
6774 			if (ha->flags.quiesce_owner)
6775 				goto exit;
6776 
6777 			qla83xx_idc_unlock(base_vha, 0);
6778 			msleep(1000);
6779 			qla83xx_idc_lock(base_vha, 0);
6780 			dev_init_timeout = jiffies +
6781 			    (ha->fcoe_dev_init_timeout * HZ);
6782 			break;
6783 		case QLA8XXX_DEV_FAILED:
6784 			if (ha->flags.nic_core_reset_owner)
6785 				qla83xx_idc_audit(base_vha,
6786 				    IDC_AUDIT_COMPLETION);
6787 			ha->flags.nic_core_reset_owner = 0;
6788 			__qla83xx_clear_drv_presence(base_vha);
6789 			qla83xx_idc_unlock(base_vha, 0);
6790 			qla8xxx_dev_failed_handler(base_vha);
6791 			rval = QLA_FUNCTION_FAILED;
6792 			qla83xx_idc_lock(base_vha, 0);
6793 			goto exit;
6794 		case QLA8XXX_BAD_VALUE:
6795 			qla83xx_idc_unlock(base_vha, 0);
6796 			msleep(1000);
6797 			qla83xx_idc_lock(base_vha, 0);
6798 			break;
6799 		default:
6800 			ql_log(ql_log_warn, base_vha, 0xb071,
6801 			    "Unknown Device State: %x.\n", dev_state);
6802 			qla83xx_idc_unlock(base_vha, 0);
6803 			qla8xxx_dev_failed_handler(base_vha);
6804 			rval = QLA_FUNCTION_FAILED;
6805 			qla83xx_idc_lock(base_vha, 0);
6806 			goto exit;
6807 		}
6808 	}
6809 
6810 exit:
6811 	return rval;
6812 }
6813 
6814 void
6815 qla2x00_disable_board_on_pci_error(struct work_struct *work)
6816 {
6817 	struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
6818 	    board_disable);
6819 	struct pci_dev *pdev = ha->pdev;
6820 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6821 
6822 	ql_log(ql_log_warn, base_vha, 0x015b,
6823 	    "Disabling adapter.\n");
6824 
6825 	if (!atomic_read(&pdev->enable_cnt)) {
6826 		ql_log(ql_log_info, base_vha, 0xfffc,
6827 		    "PCI device disabled, no action req for PCI error=%lx\n",
6828 		    base_vha->pci_flags);
6829 		return;
6830 	}
6831 
6832 	/*
6833 	 * if UNLOADING flag is already set, then continue unload,
6834 	 * where it was set first.
6835 	 */
6836 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
6837 		return;
6838 
6839 	qla2x00_wait_for_sess_deletion(base_vha);
6840 
6841 	qla2x00_delete_all_vps(ha, base_vha);
6842 
6843 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
6844 
6845 	qla2x00_dfs_remove(base_vha);
6846 
6847 	qla84xx_put_chip(base_vha);
6848 
6849 	if (base_vha->timer_active)
6850 		qla2x00_stop_timer(base_vha);
6851 
6852 	base_vha->flags.online = 0;
6853 
6854 	qla2x00_destroy_deferred_work(ha);
6855 
6856 	/*
6857 	 * Do not try to stop beacon blink as it will issue a mailbox
6858 	 * command.
6859 	 */
6860 	qla2x00_free_sysfs_attr(base_vha, false);
6861 
6862 	fc_remove_host(base_vha->host);
6863 
6864 	scsi_remove_host(base_vha->host);
6865 
6866 	base_vha->flags.init_done = 0;
6867 	qla25xx_delete_queues(base_vha);
6868 	qla2x00_free_fcports(base_vha);
6869 	qla2x00_free_irqs(base_vha);
6870 	qla2x00_mem_free(ha);
6871 	qla82xx_md_free(base_vha);
6872 	qla2x00_free_queues(ha);
6873 
6874 	qla2x00_unmap_iobases(ha);
6875 
6876 	pci_release_selected_regions(ha->pdev, ha->bars);
6877 	pci_disable_device(pdev);
6878 
6879 	/*
6880 	 * Let qla2x00_remove_one cleanup qla_hw_data on device removal.
6881 	 */
6882 }
6883 
6884 /**************************************************************************
6885 * qla2x00_do_dpc
6886 *   This kernel thread is a task that is schedule by the interrupt handler
6887 *   to perform the background processing for interrupts.
6888 *
6889 * Notes:
6890 * This task always run in the context of a kernel thread.  It
6891 * is kick-off by the driver's detect code and starts up
6892 * up one per adapter. It immediately goes to sleep and waits for
6893 * some fibre event.  When either the interrupt handler or
6894 * the timer routine detects a event it will one of the task
6895 * bits then wake us up.
6896 **************************************************************************/
6897 static int
6898 qla2x00_do_dpc(void *data)
6899 {
6900 	scsi_qla_host_t *base_vha;
6901 	struct qla_hw_data *ha;
6902 	uint32_t online;
6903 	struct qla_qpair *qpair;
6904 
6905 	ha = (struct qla_hw_data *)data;
6906 	base_vha = pci_get_drvdata(ha->pdev);
6907 
6908 	set_user_nice(current, MIN_NICE);
6909 
6910 	set_current_state(TASK_INTERRUPTIBLE);
6911 	while (!kthread_should_stop()) {
6912 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
6913 		    "DPC handler sleeping.\n");
6914 
6915 		schedule();
6916 
6917 		if (test_and_clear_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags))
6918 			qla_pci_set_eeh_busy(base_vha);
6919 
6920 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
6921 			goto end_loop;
6922 
6923 		if (ha->flags.eeh_busy) {
6924 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
6925 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
6926 			goto end_loop;
6927 		}
6928 
6929 		ha->dpc_active = 1;
6930 
6931 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
6932 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
6933 		    base_vha->dpc_flags);
6934 
6935 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
6936 			break;
6937 
6938 		if (IS_P3P_TYPE(ha)) {
6939 			if (IS_QLA8044(ha)) {
6940 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6941 					&base_vha->dpc_flags)) {
6942 					qla8044_idc_lock(ha);
6943 					qla8044_wr_direct(base_vha,
6944 						QLA8044_CRB_DEV_STATE_INDEX,
6945 						QLA8XXX_DEV_FAILED);
6946 					qla8044_idc_unlock(ha);
6947 					ql_log(ql_log_info, base_vha, 0x4004,
6948 						"HW State: FAILED.\n");
6949 					qla8044_device_state_handler(base_vha);
6950 					continue;
6951 				}
6952 
6953 			} else {
6954 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6955 					&base_vha->dpc_flags)) {
6956 					qla82xx_idc_lock(ha);
6957 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6958 						QLA8XXX_DEV_FAILED);
6959 					qla82xx_idc_unlock(ha);
6960 					ql_log(ql_log_info, base_vha, 0x0151,
6961 						"HW State: FAILED.\n");
6962 					qla82xx_device_state_handler(base_vha);
6963 					continue;
6964 				}
6965 			}
6966 
6967 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
6968 				&base_vha->dpc_flags)) {
6969 
6970 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
6971 				    "FCoE context reset scheduled.\n");
6972 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
6973 					&base_vha->dpc_flags))) {
6974 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
6975 						/* FCoE-ctx reset failed.
6976 						 * Escalate to chip-reset
6977 						 */
6978 						set_bit(ISP_ABORT_NEEDED,
6979 							&base_vha->dpc_flags);
6980 					}
6981 					clear_bit(ABORT_ISP_ACTIVE,
6982 						&base_vha->dpc_flags);
6983 				}
6984 
6985 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
6986 				    "FCoE context reset end.\n");
6987 			}
6988 		} else if (IS_QLAFX00(ha)) {
6989 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
6990 				&base_vha->dpc_flags)) {
6991 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
6992 				    "Firmware Reset Recovery\n");
6993 				if (qlafx00_reset_initialize(base_vha)) {
6994 					/* Failed. Abort isp later. */
6995 					if (!test_bit(UNLOADING,
6996 					    &base_vha->dpc_flags)) {
6997 						set_bit(ISP_UNRECOVERABLE,
6998 						    &base_vha->dpc_flags);
6999 						ql_dbg(ql_dbg_dpc, base_vha,
7000 						    0x4021,
7001 						    "Reset Recovery Failed\n");
7002 					}
7003 				}
7004 			}
7005 
7006 			if (test_and_clear_bit(FX00_TARGET_SCAN,
7007 				&base_vha->dpc_flags)) {
7008 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
7009 				    "ISPFx00 Target Scan scheduled\n");
7010 				if (qlafx00_rescan_isp(base_vha)) {
7011 					if (!test_bit(UNLOADING,
7012 					    &base_vha->dpc_flags))
7013 						set_bit(ISP_UNRECOVERABLE,
7014 						    &base_vha->dpc_flags);
7015 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
7016 					    "ISPFx00 Target Scan Failed\n");
7017 				}
7018 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
7019 				    "ISPFx00 Target Scan End\n");
7020 			}
7021 			if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
7022 				&base_vha->dpc_flags)) {
7023 				ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
7024 				    "ISPFx00 Host Info resend scheduled\n");
7025 				qlafx00_fx_disc(base_vha,
7026 				    &base_vha->hw->mr.fcport,
7027 				    FXDISC_REG_HOST_INFO);
7028 			}
7029 		}
7030 
7031 		if (test_and_clear_bit(DETECT_SFP_CHANGE,
7032 		    &base_vha->dpc_flags)) {
7033 			/* Semantic:
7034 			 *  - NO-OP -- await next ISP-ABORT. Preferred method
7035 			 *             to minimize disruptions that will occur
7036 			 *             when a forced chip-reset occurs.
7037 			 *  - Force -- ISP-ABORT scheduled.
7038 			 */
7039 			/* set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); */
7040 		}
7041 
7042 		if (test_and_clear_bit
7043 		    (ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
7044 		    !test_bit(UNLOADING, &base_vha->dpc_flags)) {
7045 			bool do_reset = true;
7046 
7047 			switch (base_vha->qlini_mode) {
7048 			case QLA2XXX_INI_MODE_ENABLED:
7049 				break;
7050 			case QLA2XXX_INI_MODE_DISABLED:
7051 				if (!qla_tgt_mode_enabled(base_vha) &&
7052 				    !ha->flags.fw_started)
7053 					do_reset = false;
7054 				break;
7055 			case QLA2XXX_INI_MODE_DUAL:
7056 				if (!qla_dual_mode_enabled(base_vha) &&
7057 				    !ha->flags.fw_started)
7058 					do_reset = false;
7059 				break;
7060 			default:
7061 				break;
7062 			}
7063 
7064 			if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
7065 			    &base_vha->dpc_flags))) {
7066 				base_vha->flags.online = 1;
7067 				ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
7068 				    "ISP abort scheduled.\n");
7069 				if (ha->isp_ops->abort_isp(base_vha)) {
7070 					/* failed. retry later */
7071 					set_bit(ISP_ABORT_NEEDED,
7072 					    &base_vha->dpc_flags);
7073 				}
7074 				clear_bit(ABORT_ISP_ACTIVE,
7075 						&base_vha->dpc_flags);
7076 				ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
7077 				    "ISP abort end.\n");
7078 			}
7079 		}
7080 
7081 		if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags)) {
7082 			if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
7083 				qla24xx_process_purex_list
7084 					(&base_vha->purex_list);
7085 				clear_bit(PROCESS_PUREX_IOCB,
7086 				    &base_vha->dpc_flags);
7087 			}
7088 		}
7089 
7090 		if (IS_QLAFX00(ha))
7091 			goto loop_resync_check;
7092 
7093 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
7094 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
7095 			    "Quiescence mode scheduled.\n");
7096 			if (IS_P3P_TYPE(ha)) {
7097 				if (IS_QLA82XX(ha))
7098 					qla82xx_device_state_handler(base_vha);
7099 				if (IS_QLA8044(ha))
7100 					qla8044_device_state_handler(base_vha);
7101 				clear_bit(ISP_QUIESCE_NEEDED,
7102 				    &base_vha->dpc_flags);
7103 				if (!ha->flags.quiesce_owner) {
7104 					qla2x00_perform_loop_resync(base_vha);
7105 					if (IS_QLA82XX(ha)) {
7106 						qla82xx_idc_lock(ha);
7107 						qla82xx_clear_qsnt_ready(
7108 						    base_vha);
7109 						qla82xx_idc_unlock(ha);
7110 					} else if (IS_QLA8044(ha)) {
7111 						qla8044_idc_lock(ha);
7112 						qla8044_clear_qsnt_ready(
7113 						    base_vha);
7114 						qla8044_idc_unlock(ha);
7115 					}
7116 				}
7117 			} else {
7118 				clear_bit(ISP_QUIESCE_NEEDED,
7119 				    &base_vha->dpc_flags);
7120 				qla2x00_quiesce_io(base_vha);
7121 			}
7122 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
7123 			    "Quiescence mode end.\n");
7124 		}
7125 
7126 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
7127 				&base_vha->dpc_flags) &&
7128 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
7129 
7130 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
7131 			    "Reset marker scheduled.\n");
7132 			qla2x00_rst_aen(base_vha);
7133 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
7134 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
7135 			    "Reset marker end.\n");
7136 		}
7137 
7138 		/* Retry each device up to login retry count */
7139 		if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
7140 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
7141 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
7142 
7143 			if (!base_vha->relogin_jif ||
7144 			    time_after_eq(jiffies, base_vha->relogin_jif)) {
7145 				base_vha->relogin_jif = jiffies + HZ;
7146 				clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
7147 
7148 				ql_dbg(ql_dbg_disc, base_vha, 0x400d,
7149 				    "Relogin scheduled.\n");
7150 				qla24xx_post_relogin_work(base_vha);
7151 			}
7152 		}
7153 loop_resync_check:
7154 		if (!qla2x00_reset_active(base_vha) &&
7155 		    test_and_clear_bit(LOOP_RESYNC_NEEDED,
7156 		    &base_vha->dpc_flags)) {
7157 			/*
7158 			 * Allow abort_isp to complete before moving on to scanning.
7159 			 */
7160 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
7161 			    "Loop resync scheduled.\n");
7162 
7163 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
7164 			    &base_vha->dpc_flags))) {
7165 
7166 				qla2x00_loop_resync(base_vha);
7167 
7168 				clear_bit(LOOP_RESYNC_ACTIVE,
7169 						&base_vha->dpc_flags);
7170 			}
7171 
7172 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
7173 			    "Loop resync end.\n");
7174 		}
7175 
7176 		if (IS_QLAFX00(ha))
7177 			goto intr_on_check;
7178 
7179 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
7180 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
7181 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
7182 			qla2xxx_flash_npiv_conf(base_vha);
7183 		}
7184 
7185 intr_on_check:
7186 		if (!ha->interrupts_on)
7187 			ha->isp_ops->enable_intrs(ha);
7188 
7189 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
7190 					&base_vha->dpc_flags)) {
7191 			if (ha->beacon_blink_led == 1)
7192 				ha->isp_ops->beacon_blink(base_vha);
7193 		}
7194 
7195 		/* qpair online check */
7196 		if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
7197 		    &base_vha->dpc_flags)) {
7198 			if (ha->flags.eeh_busy ||
7199 			    ha->flags.pci_channel_io_perm_failure)
7200 				online = 0;
7201 			else
7202 				online = 1;
7203 
7204 			mutex_lock(&ha->mq_lock);
7205 			list_for_each_entry(qpair, &base_vha->qp_list,
7206 			    qp_list_elem)
7207 			qpair->online = online;
7208 			mutex_unlock(&ha->mq_lock);
7209 		}
7210 
7211 		if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
7212 				       &base_vha->dpc_flags)) {
7213 			u16 threshold = ha->nvme_last_rptd_aen + ha->last_zio_threshold;
7214 
7215 			if (threshold > ha->orig_fw_xcb_count)
7216 				threshold = ha->orig_fw_xcb_count;
7217 
7218 			ql_log(ql_log_info, base_vha, 0xffffff,
7219 			       "SET ZIO Activity exchange threshold to %d.\n",
7220 			       threshold);
7221 			if (qla27xx_set_zio_threshold(base_vha, threshold)) {
7222 				ql_log(ql_log_info, base_vha, 0xffffff,
7223 				       "Unable to SET ZIO Activity exchange threshold to %d.\n",
7224 				       threshold);
7225 			}
7226 		}
7227 
7228 		if (!IS_QLAFX00(ha))
7229 			qla2x00_do_dpc_all_vps(base_vha);
7230 
7231 		if (test_and_clear_bit(N2N_LINK_RESET,
7232 			&base_vha->dpc_flags)) {
7233 			qla2x00_lip_reset(base_vha);
7234 		}
7235 
7236 		ha->dpc_active = 0;
7237 end_loop:
7238 		set_current_state(TASK_INTERRUPTIBLE);
7239 	} /* End of while(1) */
7240 	__set_current_state(TASK_RUNNING);
7241 
7242 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
7243 	    "DPC handler exiting.\n");
7244 
7245 	/*
7246 	 * Make sure that nobody tries to wake us up again.
7247 	 */
7248 	ha->dpc_active = 0;
7249 
7250 	/* Cleanup any residual CTX SRBs. */
7251 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
7252 
7253 	return 0;
7254 }
7255 
7256 void
7257 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
7258 {
7259 	struct qla_hw_data *ha = vha->hw;
7260 	struct task_struct *t = ha->dpc_thread;
7261 
7262 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
7263 		wake_up_process(t);
7264 }
7265 
7266 /*
7267 *  qla2x00_rst_aen
7268 *      Processes asynchronous reset.
7269 *
7270 * Input:
7271 *      ha  = adapter block pointer.
7272 */
7273 static void
7274 qla2x00_rst_aen(scsi_qla_host_t *vha)
7275 {
7276 	if (vha->flags.online && !vha->flags.reset_active &&
7277 	    !atomic_read(&vha->loop_down_timer) &&
7278 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
7279 		do {
7280 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7281 
7282 			/*
7283 			 * Issue marker command only when we are going to start
7284 			 * the I/O.
7285 			 */
7286 			vha->marker_needed = 1;
7287 		} while (!atomic_read(&vha->loop_down_timer) &&
7288 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
7289 	}
7290 }
7291 
7292 static bool qla_do_heartbeat(struct scsi_qla_host *vha)
7293 {
7294 	struct qla_hw_data *ha = vha->hw;
7295 	u32 cmpl_cnt;
7296 	u16 i;
7297 	bool do_heartbeat = false;
7298 
7299 	/*
7300 	 * Allow do_heartbeat only if we don’t have any active interrupts,
7301 	 * but there are still IOs outstanding with firmware.
7302 	 */
7303 	cmpl_cnt = ha->base_qpair->cmd_completion_cnt;
7304 	if (cmpl_cnt == ha->base_qpair->prev_completion_cnt &&
7305 	    cmpl_cnt != ha->base_qpair->cmd_cnt) {
7306 		do_heartbeat = true;
7307 		goto skip;
7308 	}
7309 	ha->base_qpair->prev_completion_cnt = cmpl_cnt;
7310 
7311 	for (i = 0; i < ha->max_qpairs; i++) {
7312 		if (ha->queue_pair_map[i]) {
7313 			cmpl_cnt = ha->queue_pair_map[i]->cmd_completion_cnt;
7314 			if (cmpl_cnt == ha->queue_pair_map[i]->prev_completion_cnt &&
7315 			    cmpl_cnt != ha->queue_pair_map[i]->cmd_cnt) {
7316 				do_heartbeat = true;
7317 				break;
7318 			}
7319 			ha->queue_pair_map[i]->prev_completion_cnt = cmpl_cnt;
7320 		}
7321 	}
7322 
7323 skip:
7324 	return do_heartbeat;
7325 }
7326 
7327 static void qla_heart_beat(struct scsi_qla_host *vha, u16 dpc_started)
7328 {
7329 	struct qla_hw_data *ha = vha->hw;
7330 
7331 	if (vha->vp_idx)
7332 		return;
7333 
7334 	if (vha->hw->flags.eeh_busy || qla2x00_chip_is_down(vha))
7335 		return;
7336 
7337 	/*
7338 	 * dpc thread cannot run if heartbeat is running at the same time.
7339 	 * We also do not want to starve heartbeat task. Therefore, do
7340 	 * heartbeat task at least once every 5 seconds.
7341 	 */
7342 	if (dpc_started &&
7343 	    time_before(jiffies, ha->last_heartbeat_run_jiffies + 5 * HZ))
7344 		return;
7345 
7346 	if (qla_do_heartbeat(vha)) {
7347 		ha->last_heartbeat_run_jiffies = jiffies;
7348 		queue_work(ha->wq, &ha->heartbeat_work);
7349 	}
7350 }
7351 
7352 static void qla_wind_down_chip(scsi_qla_host_t *vha)
7353 {
7354 	struct qla_hw_data *ha = vha->hw;
7355 
7356 	if (!ha->flags.eeh_busy)
7357 		return;
7358 	if (ha->pci_error_state)
7359 		/* system is trying to recover */
7360 		return;
7361 
7362 	/*
7363 	 * Current system is not handling PCIE error.  At this point, this is
7364 	 * best effort to wind down the adapter.
7365 	 */
7366 	if (time_after_eq(jiffies, ha->eeh_jif + ql2xdelay_before_pci_error_handling * HZ) &&
7367 	    !ha->flags.eeh_flush) {
7368 		ql_log(ql_log_info, vha, 0x9009,
7369 		    "PCI Error detected, attempting to reset hardware.\n");
7370 
7371 		ha->isp_ops->reset_chip(vha);
7372 		ha->isp_ops->disable_intrs(ha);
7373 
7374 		ha->flags.eeh_flush = EEH_FLUSH_RDY;
7375 		ha->eeh_jif = jiffies;
7376 
7377 	} else if (ha->flags.eeh_flush == EEH_FLUSH_RDY &&
7378 	    time_after_eq(jiffies, ha->eeh_jif +  5 * HZ)) {
7379 		pci_clear_master(ha->pdev);
7380 
7381 		/* flush all command */
7382 		qla2x00_abort_isp_cleanup(vha);
7383 		ha->flags.eeh_flush = EEH_FLUSH_DONE;
7384 
7385 		ql_log(ql_log_info, vha, 0x900a,
7386 		    "PCI Error handling complete, all IOs aborted.\n");
7387 	}
7388 }
7389 
7390 /**************************************************************************
7391 *   qla2x00_timer
7392 *
7393 * Description:
7394 *   One second timer
7395 *
7396 * Context: Interrupt
7397 ***************************************************************************/
7398 void
7399 qla2x00_timer(struct timer_list *t)
7400 {
7401 	scsi_qla_host_t *vha = from_timer(vha, t, timer);
7402 	unsigned long	cpu_flags = 0;
7403 	int		start_dpc = 0;
7404 	int		index;
7405 	srb_t		*sp;
7406 	uint16_t        w;
7407 	struct qla_hw_data *ha = vha->hw;
7408 	struct req_que *req;
7409 	unsigned long flags;
7410 	fc_port_t *fcport = NULL;
7411 
7412 	if (ha->flags.eeh_busy) {
7413 		qla_wind_down_chip(vha);
7414 
7415 		ql_dbg(ql_dbg_timer, vha, 0x6000,
7416 		    "EEH = %d, restarting timer.\n",
7417 		    ha->flags.eeh_busy);
7418 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
7419 		return;
7420 	}
7421 
7422 	/*
7423 	 * Hardware read to raise pending EEH errors during mailbox waits. If
7424 	 * the read returns -1 then disable the board.
7425 	 */
7426 	if (!pci_channel_offline(ha->pdev)) {
7427 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
7428 		qla2x00_check_reg16_for_disconnect(vha, w);
7429 	}
7430 
7431 	/* Make sure qla82xx_watchdog is run only for physical port */
7432 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
7433 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
7434 			start_dpc++;
7435 		if (IS_QLA82XX(ha))
7436 			qla82xx_watchdog(vha);
7437 		else if (IS_QLA8044(ha))
7438 			qla8044_watchdog(vha);
7439 	}
7440 
7441 	if (!vha->vp_idx && IS_QLAFX00(ha))
7442 		qlafx00_timer_routine(vha);
7443 
7444 	if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7445 		vha->link_down_time++;
7446 
7447 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
7448 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
7449 		if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7450 			fcport->tgt_link_down_time++;
7451 	}
7452 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
7453 
7454 	/* Loop down handler. */
7455 	if (atomic_read(&vha->loop_down_timer) > 0 &&
7456 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
7457 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
7458 		&& vha->flags.online) {
7459 
7460 		if (atomic_read(&vha->loop_down_timer) ==
7461 		    vha->loop_down_abort_time) {
7462 
7463 			ql_log(ql_log_info, vha, 0x6008,
7464 			    "Loop down - aborting the queues before time expires.\n");
7465 
7466 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
7467 				atomic_set(&vha->loop_state, LOOP_DEAD);
7468 
7469 			/*
7470 			 * Schedule an ISP abort to return any FCP2-device
7471 			 * commands.
7472 			 */
7473 			/* NPIV - scan physical port only */
7474 			if (!vha->vp_idx) {
7475 				spin_lock_irqsave(&ha->hardware_lock,
7476 				    cpu_flags);
7477 				req = ha->req_q_map[0];
7478 				for (index = 1;
7479 				    index < req->num_outstanding_cmds;
7480 				    index++) {
7481 					fc_port_t *sfcp;
7482 
7483 					sp = req->outstanding_cmds[index];
7484 					if (!sp)
7485 						continue;
7486 					if (sp->cmd_type != TYPE_SRB)
7487 						continue;
7488 					if (sp->type != SRB_SCSI_CMD)
7489 						continue;
7490 					sfcp = sp->fcport;
7491 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
7492 						continue;
7493 
7494 					if (IS_QLA82XX(ha))
7495 						set_bit(FCOE_CTX_RESET_NEEDED,
7496 							&vha->dpc_flags);
7497 					else
7498 						set_bit(ISP_ABORT_NEEDED,
7499 							&vha->dpc_flags);
7500 					break;
7501 				}
7502 				spin_unlock_irqrestore(&ha->hardware_lock,
7503 								cpu_flags);
7504 			}
7505 			start_dpc++;
7506 		}
7507 
7508 		/* if the loop has been down for 4 minutes, reinit adapter */
7509 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
7510 			if (!(vha->device_flags & DFLG_NO_CABLE) && !vha->vp_idx) {
7511 				ql_log(ql_log_warn, vha, 0x6009,
7512 				    "Loop down - aborting ISP.\n");
7513 
7514 				if (IS_QLA82XX(ha))
7515 					set_bit(FCOE_CTX_RESET_NEEDED,
7516 						&vha->dpc_flags);
7517 				else
7518 					set_bit(ISP_ABORT_NEEDED,
7519 						&vha->dpc_flags);
7520 			}
7521 		}
7522 		ql_dbg(ql_dbg_timer, vha, 0x600a,
7523 		    "Loop down - seconds remaining %d.\n",
7524 		    atomic_read(&vha->loop_down_timer));
7525 	}
7526 	/* Check if beacon LED needs to be blinked for physical host only */
7527 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
7528 		/* There is no beacon_blink function for ISP82xx */
7529 		if (!IS_P3P_TYPE(ha)) {
7530 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
7531 			start_dpc++;
7532 		}
7533 	}
7534 
7535 	/* check if edif running */
7536 	if (vha->hw->flags.edif_enabled)
7537 		qla_edif_timer(vha);
7538 
7539 	/* Process any deferred work. */
7540 	if (!list_empty(&vha->work_list)) {
7541 		unsigned long flags;
7542 		bool q = false;
7543 
7544 		spin_lock_irqsave(&vha->work_lock, flags);
7545 		if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
7546 			q = true;
7547 		spin_unlock_irqrestore(&vha->work_lock, flags);
7548 		if (q)
7549 			queue_work(vha->hw->wq, &vha->iocb_work);
7550 	}
7551 
7552 	/*
7553 	 * FC-NVME
7554 	 * see if the active AEN count has changed from what was last reported.
7555 	 */
7556 	index = atomic_read(&ha->nvme_active_aen_cnt);
7557 	if (!vha->vp_idx &&
7558 	    (index != ha->nvme_last_rptd_aen) &&
7559 	    ha->zio_mode == QLA_ZIO_MODE_6 &&
7560 	    !ha->flags.host_shutting_down) {
7561 		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
7562 		ql_log(ql_log_info, vha, 0x3002,
7563 		    "nvme: Sched: Set ZIO exchange threshold to %d.\n",
7564 		    ha->nvme_last_rptd_aen);
7565 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7566 		start_dpc++;
7567 	}
7568 
7569 	if (!vha->vp_idx &&
7570 	    atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
7571 	    IS_ZIO_THRESHOLD_CAPABLE(ha)) {
7572 		ql_log(ql_log_info, vha, 0x3002,
7573 		    "Sched: Set ZIO exchange threshold to %d.\n",
7574 		    ha->last_zio_threshold);
7575 		ha->last_zio_threshold = atomic_read(&ha->zio_threshold);
7576 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7577 		start_dpc++;
7578 	}
7579 	qla_adjust_buf(vha);
7580 
7581 	/* borrowing w to signify dpc will run */
7582 	w = 0;
7583 	/* Schedule the DPC routine if needed */
7584 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
7585 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
7586 	    start_dpc ||
7587 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
7588 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
7589 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
7590 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
7591 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
7592 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
7593 	    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags))) {
7594 		ql_dbg(ql_dbg_timer, vha, 0x600b,
7595 		    "isp_abort_needed=%d loop_resync_needed=%d "
7596 		    "start_dpc=%d reset_marker_needed=%d",
7597 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
7598 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
7599 		    start_dpc, test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
7600 		ql_dbg(ql_dbg_timer, vha, 0x600c,
7601 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
7602 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
7603 		    "relogin_needed=%d, Process_purex_iocb=%d.\n",
7604 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
7605 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
7606 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
7607 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
7608 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
7609 		    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags));
7610 		qla2xxx_wake_dpc(vha);
7611 		w = 1;
7612 	}
7613 
7614 	qla_heart_beat(vha, w);
7615 
7616 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
7617 }
7618 
7619 /* Firmware interface routines. */
7620 
7621 #define FW_ISP21XX	0
7622 #define FW_ISP22XX	1
7623 #define FW_ISP2300	2
7624 #define FW_ISP2322	3
7625 #define FW_ISP24XX	4
7626 #define FW_ISP25XX	5
7627 #define FW_ISP81XX	6
7628 #define FW_ISP82XX	7
7629 #define FW_ISP2031	8
7630 #define FW_ISP8031	9
7631 #define FW_ISP27XX	10
7632 #define FW_ISP28XX	11
7633 
7634 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
7635 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
7636 #define FW_FILE_ISP2300	"ql2300_fw.bin"
7637 #define FW_FILE_ISP2322	"ql2322_fw.bin"
7638 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
7639 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
7640 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
7641 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
7642 #define FW_FILE_ISP2031	"ql2600_fw.bin"
7643 #define FW_FILE_ISP8031	"ql8300_fw.bin"
7644 #define FW_FILE_ISP27XX	"ql2700_fw.bin"
7645 #define FW_FILE_ISP28XX	"ql2800_fw.bin"
7646 
7647 
7648 static DEFINE_MUTEX(qla_fw_lock);
7649 
7650 static struct fw_blob qla_fw_blobs[] = {
7651 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
7652 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
7653 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
7654 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
7655 	{ .name = FW_FILE_ISP24XX, },
7656 	{ .name = FW_FILE_ISP25XX, },
7657 	{ .name = FW_FILE_ISP81XX, },
7658 	{ .name = FW_FILE_ISP82XX, },
7659 	{ .name = FW_FILE_ISP2031, },
7660 	{ .name = FW_FILE_ISP8031, },
7661 	{ .name = FW_FILE_ISP27XX, },
7662 	{ .name = FW_FILE_ISP28XX, },
7663 	{ .name = NULL, },
7664 };
7665 
7666 struct fw_blob *
7667 qla2x00_request_firmware(scsi_qla_host_t *vha)
7668 {
7669 	struct qla_hw_data *ha = vha->hw;
7670 	struct fw_blob *blob;
7671 
7672 	if (IS_QLA2100(ha)) {
7673 		blob = &qla_fw_blobs[FW_ISP21XX];
7674 	} else if (IS_QLA2200(ha)) {
7675 		blob = &qla_fw_blobs[FW_ISP22XX];
7676 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
7677 		blob = &qla_fw_blobs[FW_ISP2300];
7678 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
7679 		blob = &qla_fw_blobs[FW_ISP2322];
7680 	} else if (IS_QLA24XX_TYPE(ha)) {
7681 		blob = &qla_fw_blobs[FW_ISP24XX];
7682 	} else if (IS_QLA25XX(ha)) {
7683 		blob = &qla_fw_blobs[FW_ISP25XX];
7684 	} else if (IS_QLA81XX(ha)) {
7685 		blob = &qla_fw_blobs[FW_ISP81XX];
7686 	} else if (IS_QLA82XX(ha)) {
7687 		blob = &qla_fw_blobs[FW_ISP82XX];
7688 	} else if (IS_QLA2031(ha)) {
7689 		blob = &qla_fw_blobs[FW_ISP2031];
7690 	} else if (IS_QLA8031(ha)) {
7691 		blob = &qla_fw_blobs[FW_ISP8031];
7692 	} else if (IS_QLA27XX(ha)) {
7693 		blob = &qla_fw_blobs[FW_ISP27XX];
7694 	} else if (IS_QLA28XX(ha)) {
7695 		blob = &qla_fw_blobs[FW_ISP28XX];
7696 	} else {
7697 		return NULL;
7698 	}
7699 
7700 	if (!blob->name)
7701 		return NULL;
7702 
7703 	mutex_lock(&qla_fw_lock);
7704 	if (blob->fw)
7705 		goto out;
7706 
7707 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
7708 		ql_log(ql_log_warn, vha, 0x0063,
7709 		    "Failed to load firmware image (%s).\n", blob->name);
7710 		blob->fw = NULL;
7711 		blob = NULL;
7712 	}
7713 
7714 out:
7715 	mutex_unlock(&qla_fw_lock);
7716 	return blob;
7717 }
7718 
7719 static void
7720 qla2x00_release_firmware(void)
7721 {
7722 	struct fw_blob *blob;
7723 
7724 	mutex_lock(&qla_fw_lock);
7725 	for (blob = qla_fw_blobs; blob->name; blob++)
7726 		release_firmware(blob->fw);
7727 	mutex_unlock(&qla_fw_lock);
7728 }
7729 
7730 static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
7731 {
7732 	struct qla_hw_data *ha = vha->hw;
7733 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
7734 	struct qla_qpair *qpair = NULL;
7735 	struct scsi_qla_host *vp, *tvp;
7736 	fc_port_t *fcport;
7737 	int i;
7738 	unsigned long flags;
7739 
7740 	ql_dbg(ql_dbg_aer, vha, 0x9000,
7741 	       "%s\n", __func__);
7742 	ha->chip_reset++;
7743 
7744 	ha->base_qpair->chip_reset = ha->chip_reset;
7745 	for (i = 0; i < ha->max_qpairs; i++) {
7746 		if (ha->queue_pair_map[i])
7747 			ha->queue_pair_map[i]->chip_reset =
7748 			    ha->base_qpair->chip_reset;
7749 	}
7750 
7751 	/*
7752 	 * purge mailbox might take a while. Slot Reset/chip reset
7753 	 * will take care of the purge
7754 	 */
7755 
7756 	mutex_lock(&ha->mq_lock);
7757 	ha->base_qpair->online = 0;
7758 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7759 		qpair->online = 0;
7760 	wmb();
7761 	mutex_unlock(&ha->mq_lock);
7762 
7763 	qla2x00_mark_all_devices_lost(vha);
7764 
7765 	spin_lock_irqsave(&ha->vport_slock, flags);
7766 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7767 		atomic_inc(&vp->vref_count);
7768 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7769 		qla2x00_mark_all_devices_lost(vp);
7770 		spin_lock_irqsave(&ha->vport_slock, flags);
7771 		atomic_dec(&vp->vref_count);
7772 	}
7773 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7774 
7775 	/* Clear all async request states across all VPs. */
7776 	list_for_each_entry(fcport, &vha->vp_fcports, list)
7777 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7778 
7779 	spin_lock_irqsave(&ha->vport_slock, flags);
7780 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7781 		atomic_inc(&vp->vref_count);
7782 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7783 		list_for_each_entry(fcport, &vp->vp_fcports, list)
7784 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7785 		spin_lock_irqsave(&ha->vport_slock, flags);
7786 		atomic_dec(&vp->vref_count);
7787 	}
7788 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7789 }
7790 
7791 
7792 static pci_ers_result_t
7793 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7794 {
7795 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
7796 	struct qla_hw_data *ha = vha->hw;
7797 	pci_ers_result_t ret = PCI_ERS_RESULT_NEED_RESET;
7798 
7799 	ql_log(ql_log_warn, vha, 0x9000,
7800 	       "PCI error detected, state %x.\n", state);
7801 	ha->pci_error_state = QLA_PCI_ERR_DETECTED;
7802 
7803 	if (!atomic_read(&pdev->enable_cnt)) {
7804 		ql_log(ql_log_info, vha, 0xffff,
7805 			"PCI device is disabled,state %x\n", state);
7806 		ret = PCI_ERS_RESULT_NEED_RESET;
7807 		goto out;
7808 	}
7809 
7810 	switch (state) {
7811 	case pci_channel_io_normal:
7812 		qla_pci_set_eeh_busy(vha);
7813 		if (ql2xmqsupport || ql2xnvmeenable) {
7814 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7815 			qla2xxx_wake_dpc(vha);
7816 		}
7817 		ret = PCI_ERS_RESULT_CAN_RECOVER;
7818 		break;
7819 	case pci_channel_io_frozen:
7820 		qla_pci_set_eeh_busy(vha);
7821 		ret = PCI_ERS_RESULT_NEED_RESET;
7822 		break;
7823 	case pci_channel_io_perm_failure:
7824 		ha->flags.pci_channel_io_perm_failure = 1;
7825 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
7826 		if (ql2xmqsupport || ql2xnvmeenable) {
7827 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7828 			qla2xxx_wake_dpc(vha);
7829 		}
7830 		ret = PCI_ERS_RESULT_DISCONNECT;
7831 	}
7832 out:
7833 	ql_dbg(ql_dbg_aer, vha, 0x600d,
7834 	       "PCI error detected returning [%x].\n", ret);
7835 	return ret;
7836 }
7837 
7838 static pci_ers_result_t
7839 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
7840 {
7841 	int risc_paused = 0;
7842 	uint32_t stat;
7843 	unsigned long flags;
7844 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7845 	struct qla_hw_data *ha = base_vha->hw;
7846 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7847 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
7848 
7849 	ql_log(ql_log_warn, base_vha, 0x9000,
7850 	       "mmio enabled\n");
7851 
7852 	ha->pci_error_state = QLA_PCI_MMIO_ENABLED;
7853 
7854 	if (IS_QLA82XX(ha))
7855 		return PCI_ERS_RESULT_RECOVERED;
7856 
7857 	if (qla2x00_isp_reg_stat(ha)) {
7858 		ql_log(ql_log_info, base_vha, 0x803f,
7859 		    "During mmio enabled, PCI/Register disconnect still detected.\n");
7860 		goto out;
7861 	}
7862 
7863 	spin_lock_irqsave(&ha->hardware_lock, flags);
7864 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
7865 		stat = rd_reg_word(&reg->hccr);
7866 		if (stat & HCCR_RISC_PAUSE)
7867 			risc_paused = 1;
7868 	} else if (IS_QLA23XX(ha)) {
7869 		stat = rd_reg_dword(&reg->u.isp2300.host_status);
7870 		if (stat & HSR_RISC_PAUSED)
7871 			risc_paused = 1;
7872 	} else if (IS_FWI2_CAPABLE(ha)) {
7873 		stat = rd_reg_dword(&reg24->host_status);
7874 		if (stat & HSRX_RISC_PAUSED)
7875 			risc_paused = 1;
7876 	}
7877 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7878 
7879 	if (risc_paused) {
7880 		ql_log(ql_log_info, base_vha, 0x9003,
7881 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
7882 		qla2xxx_dump_fw(base_vha);
7883 	}
7884 out:
7885 	/* set PCI_ERS_RESULT_NEED_RESET to trigger call to qla2xxx_pci_slot_reset */
7886 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7887 	       "mmio enabled returning.\n");
7888 	return PCI_ERS_RESULT_NEED_RESET;
7889 }
7890 
7891 static pci_ers_result_t
7892 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
7893 {
7894 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
7895 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7896 	struct qla_hw_data *ha = base_vha->hw;
7897 	int rc;
7898 	struct qla_qpair *qpair = NULL;
7899 
7900 	ql_log(ql_log_warn, base_vha, 0x9004,
7901 	       "Slot Reset.\n");
7902 
7903 	ha->pci_error_state = QLA_PCI_SLOT_RESET;
7904 	/* Workaround: qla2xxx driver which access hardware earlier
7905 	 * needs error state to be pci_channel_io_online.
7906 	 * Otherwise mailbox command timesout.
7907 	 */
7908 	pdev->error_state = pci_channel_io_normal;
7909 
7910 	pci_restore_state(pdev);
7911 
7912 	/* pci_restore_state() clears the saved_state flag of the device
7913 	 * save restored state which resets saved_state flag
7914 	 */
7915 	pci_save_state(pdev);
7916 
7917 	if (ha->mem_only)
7918 		rc = pci_enable_device_mem(pdev);
7919 	else
7920 		rc = pci_enable_device(pdev);
7921 
7922 	if (rc) {
7923 		ql_log(ql_log_warn, base_vha, 0x9005,
7924 		    "Can't re-enable PCI device after reset.\n");
7925 		goto exit_slot_reset;
7926 	}
7927 
7928 
7929 	if (ha->isp_ops->pci_config(base_vha))
7930 		goto exit_slot_reset;
7931 
7932 	mutex_lock(&ha->mq_lock);
7933 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7934 		qpair->online = 1;
7935 	mutex_unlock(&ha->mq_lock);
7936 
7937 	ha->flags.eeh_busy = 0;
7938 	base_vha->flags.online = 1;
7939 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7940 	ha->isp_ops->abort_isp(base_vha);
7941 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7942 
7943 	if (qla2x00_isp_reg_stat(ha)) {
7944 		ha->flags.eeh_busy = 1;
7945 		qla_pci_error_cleanup(base_vha);
7946 		ql_log(ql_log_warn, base_vha, 0x9005,
7947 		       "Device unable to recover from PCI error.\n");
7948 	} else {
7949 		ret =  PCI_ERS_RESULT_RECOVERED;
7950 	}
7951 
7952 exit_slot_reset:
7953 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
7954 	    "Slot Reset returning %x.\n", ret);
7955 
7956 	return ret;
7957 }
7958 
7959 static void
7960 qla2xxx_pci_resume(struct pci_dev *pdev)
7961 {
7962 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7963 	struct qla_hw_data *ha = base_vha->hw;
7964 	int ret;
7965 
7966 	ql_log(ql_log_warn, base_vha, 0x900f,
7967 	       "Pci Resume.\n");
7968 
7969 
7970 	ret = qla2x00_wait_for_hba_online(base_vha);
7971 	if (ret != QLA_SUCCESS) {
7972 		ql_log(ql_log_fatal, base_vha, 0x9002,
7973 		    "The device failed to resume I/O from slot/link_reset.\n");
7974 	}
7975 	ha->pci_error_state = QLA_PCI_RESUME;
7976 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7977 	       "Pci Resume returning.\n");
7978 }
7979 
7980 void qla_pci_set_eeh_busy(struct scsi_qla_host *vha)
7981 {
7982 	struct qla_hw_data *ha = vha->hw;
7983 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7984 	bool do_cleanup = false;
7985 	unsigned long flags;
7986 
7987 	if (ha->flags.eeh_busy)
7988 		return;
7989 
7990 	spin_lock_irqsave(&base_vha->work_lock, flags);
7991 	if (!ha->flags.eeh_busy) {
7992 		ha->eeh_jif = jiffies;
7993 		ha->flags.eeh_flush = 0;
7994 
7995 		ha->flags.eeh_busy = 1;
7996 		do_cleanup = true;
7997 	}
7998 	spin_unlock_irqrestore(&base_vha->work_lock, flags);
7999 
8000 	if (do_cleanup)
8001 		qla_pci_error_cleanup(base_vha);
8002 }
8003 
8004 /*
8005  * this routine will schedule a task to pause IO from interrupt context
8006  * if caller sees a PCIE error event (register read = 0xf's)
8007  */
8008 void qla_schedule_eeh_work(struct scsi_qla_host *vha)
8009 {
8010 	struct qla_hw_data *ha = vha->hw;
8011 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8012 
8013 	if (ha->flags.eeh_busy)
8014 		return;
8015 
8016 	set_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags);
8017 	qla2xxx_wake_dpc(base_vha);
8018 }
8019 
8020 static void
8021 qla_pci_reset_prepare(struct pci_dev *pdev)
8022 {
8023 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
8024 	struct qla_hw_data *ha = base_vha->hw;
8025 	struct qla_qpair *qpair;
8026 
8027 	ql_log(ql_log_warn, base_vha, 0xffff,
8028 	    "%s.\n", __func__);
8029 
8030 	/*
8031 	 * PCI FLR/function reset is about to reset the
8032 	 * slot. Stop the chip to stop all DMA access.
8033 	 * It is assumed that pci_reset_done will be called
8034 	 * after FLR to resume Chip operation.
8035 	 */
8036 	ha->flags.eeh_busy = 1;
8037 	mutex_lock(&ha->mq_lock);
8038 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
8039 		qpair->online = 0;
8040 	mutex_unlock(&ha->mq_lock);
8041 
8042 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
8043 	qla2x00_abort_isp_cleanup(base_vha);
8044 	qla2x00_abort_all_cmds(base_vha, DID_RESET << 16);
8045 }
8046 
8047 static void
8048 qla_pci_reset_done(struct pci_dev *pdev)
8049 {
8050 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
8051 	struct qla_hw_data *ha = base_vha->hw;
8052 	struct qla_qpair *qpair;
8053 
8054 	ql_log(ql_log_warn, base_vha, 0xffff,
8055 	    "%s.\n", __func__);
8056 
8057 	/*
8058 	 * FLR just completed by PCI layer. Resume adapter
8059 	 */
8060 	ha->flags.eeh_busy = 0;
8061 	mutex_lock(&ha->mq_lock);
8062 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
8063 		qpair->online = 1;
8064 	mutex_unlock(&ha->mq_lock);
8065 
8066 	base_vha->flags.online = 1;
8067 	ha->isp_ops->abort_isp(base_vha);
8068 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
8069 }
8070 
8071 static void qla2xxx_map_queues(struct Scsi_Host *shost)
8072 {
8073 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
8074 	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
8075 
8076 	if (USER_CTRL_IRQ(vha->hw) || !vha->hw->mqiobase)
8077 		blk_mq_map_queues(qmap);
8078 	else
8079 		blk_mq_pci_map_queues(qmap, vha->hw->pdev, vha->irq_offset);
8080 }
8081 
8082 struct scsi_host_template qla2xxx_driver_template = {
8083 	.module			= THIS_MODULE,
8084 	.name			= QLA2XXX_DRIVER_NAME,
8085 	.queuecommand		= qla2xxx_queuecommand,
8086 
8087 	.eh_timed_out		= fc_eh_timed_out,
8088 	.eh_abort_handler	= qla2xxx_eh_abort,
8089 	.eh_should_retry_cmd	= fc_eh_should_retry_cmd,
8090 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
8091 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
8092 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
8093 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
8094 
8095 	.slave_configure	= qla2xxx_slave_configure,
8096 
8097 	.slave_alloc		= qla2xxx_slave_alloc,
8098 	.slave_destroy		= qla2xxx_slave_destroy,
8099 	.scan_finished		= qla2xxx_scan_finished,
8100 	.scan_start		= qla2xxx_scan_start,
8101 	.change_queue_depth	= scsi_change_queue_depth,
8102 	.map_queues             = qla2xxx_map_queues,
8103 	.this_id		= -1,
8104 	.cmd_per_lun		= 3,
8105 	.sg_tablesize		= SG_ALL,
8106 
8107 	.max_sectors		= 0xFFFF,
8108 	.shost_groups		= qla2x00_host_groups,
8109 
8110 	.supported_mode		= MODE_INITIATOR,
8111 	.track_queue_depth	= 1,
8112 	.cmd_size		= sizeof(srb_t),
8113 };
8114 
8115 static const struct pci_error_handlers qla2xxx_err_handler = {
8116 	.error_detected = qla2xxx_pci_error_detected,
8117 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
8118 	.slot_reset = qla2xxx_pci_slot_reset,
8119 	.resume = qla2xxx_pci_resume,
8120 	.reset_prepare = qla_pci_reset_prepare,
8121 	.reset_done = qla_pci_reset_done,
8122 };
8123 
8124 static struct pci_device_id qla2xxx_pci_tbl[] = {
8125 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
8126 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
8127 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
8128 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
8129 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
8130 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
8131 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
8132 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
8133 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
8134 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
8135 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
8136 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
8137 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
8138 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
8139 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
8140 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
8141 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
8142 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
8143 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
8144 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
8145 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
8146 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
8147 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2061) },
8148 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2081) },
8149 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2281) },
8150 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2089) },
8151 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2289) },
8152 	{ 0 },
8153 };
8154 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
8155 
8156 static struct pci_driver qla2xxx_pci_driver = {
8157 	.name		= QLA2XXX_DRIVER_NAME,
8158 	.driver		= {
8159 		.owner		= THIS_MODULE,
8160 	},
8161 	.id_table	= qla2xxx_pci_tbl,
8162 	.probe		= qla2x00_probe_one,
8163 	.remove		= qla2x00_remove_one,
8164 	.shutdown	= qla2x00_shutdown,
8165 	.err_handler	= &qla2xxx_err_handler,
8166 };
8167 
8168 static const struct file_operations apidev_fops = {
8169 	.owner = THIS_MODULE,
8170 	.llseek = noop_llseek,
8171 };
8172 
8173 /**
8174  * qla2x00_module_init - Module initialization.
8175  **/
8176 static int __init
8177 qla2x00_module_init(void)
8178 {
8179 	int ret = 0;
8180 
8181 	BUILD_BUG_ON(sizeof(cmd_a64_entry_t) != 64);
8182 	BUILD_BUG_ON(sizeof(cmd_entry_t) != 64);
8183 	BUILD_BUG_ON(sizeof(cont_a64_entry_t) != 64);
8184 	BUILD_BUG_ON(sizeof(cont_entry_t) != 64);
8185 	BUILD_BUG_ON(sizeof(init_cb_t) != 96);
8186 	BUILD_BUG_ON(sizeof(mrk_entry_t) != 64);
8187 	BUILD_BUG_ON(sizeof(ms_iocb_entry_t) != 64);
8188 	BUILD_BUG_ON(sizeof(request_t) != 64);
8189 	BUILD_BUG_ON(sizeof(struct abort_entry_24xx) != 64);
8190 	BUILD_BUG_ON(sizeof(struct abort_iocb_entry_fx00) != 64);
8191 	BUILD_BUG_ON(sizeof(struct abts_entry_24xx) != 64);
8192 	BUILD_BUG_ON(sizeof(struct access_chip_84xx) != 64);
8193 	BUILD_BUG_ON(sizeof(struct access_chip_rsp_84xx) != 64);
8194 	BUILD_BUG_ON(sizeof(struct cmd_bidir) != 64);
8195 	BUILD_BUG_ON(sizeof(struct cmd_nvme) != 64);
8196 	BUILD_BUG_ON(sizeof(struct cmd_type_6) != 64);
8197 	BUILD_BUG_ON(sizeof(struct cmd_type_7) != 64);
8198 	BUILD_BUG_ON(sizeof(struct cmd_type_7_fx00) != 64);
8199 	BUILD_BUG_ON(sizeof(struct cmd_type_crc_2) != 64);
8200 	BUILD_BUG_ON(sizeof(struct ct_entry_24xx) != 64);
8201 	BUILD_BUG_ON(sizeof(struct ct_fdmi1_hba_attributes) != 2604);
8202 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_hba_attributes) != 4424);
8203 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_port_attributes) != 4164);
8204 	BUILD_BUG_ON(sizeof(struct ct_fdmi_hba_attr) != 260);
8205 	BUILD_BUG_ON(sizeof(struct ct_fdmi_port_attr) != 260);
8206 	BUILD_BUG_ON(sizeof(struct ct_rsp_hdr) != 16);
8207 	BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
8208 	BUILD_BUG_ON(sizeof(struct device_reg_24xx) != 256);
8209 	BUILD_BUG_ON(sizeof(struct device_reg_25xxmq) != 24);
8210 	BUILD_BUG_ON(sizeof(struct device_reg_2xxx) != 256);
8211 	BUILD_BUG_ON(sizeof(struct device_reg_82xx) != 1288);
8212 	BUILD_BUG_ON(sizeof(struct device_reg_fx00) != 216);
8213 	BUILD_BUG_ON(sizeof(struct els_entry_24xx) != 64);
8214 	BUILD_BUG_ON(sizeof(struct els_sts_entry_24xx) != 64);
8215 	BUILD_BUG_ON(sizeof(struct fxdisc_entry_fx00) != 64);
8216 	BUILD_BUG_ON(sizeof(struct imm_ntfy_from_isp) != 64);
8217 	BUILD_BUG_ON(sizeof(struct init_cb_24xx) != 128);
8218 	BUILD_BUG_ON(sizeof(struct init_cb_81xx) != 128);
8219 	BUILD_BUG_ON(sizeof(struct logio_entry_24xx) != 64);
8220 	BUILD_BUG_ON(sizeof(struct mbx_entry) != 64);
8221 	BUILD_BUG_ON(sizeof(struct mid_init_cb_24xx) != 5252);
8222 	BUILD_BUG_ON(sizeof(struct mrk_entry_24xx) != 64);
8223 	BUILD_BUG_ON(sizeof(struct nvram_24xx) != 512);
8224 	BUILD_BUG_ON(sizeof(struct nvram_81xx) != 512);
8225 	BUILD_BUG_ON(sizeof(struct pt_ls4_request) != 64);
8226 	BUILD_BUG_ON(sizeof(struct pt_ls4_rx_unsol) != 64);
8227 	BUILD_BUG_ON(sizeof(struct purex_entry_24xx) != 64);
8228 	BUILD_BUG_ON(sizeof(struct qla2100_fw_dump) != 123634);
8229 	BUILD_BUG_ON(sizeof(struct qla2300_fw_dump) != 136100);
8230 	BUILD_BUG_ON(sizeof(struct qla24xx_fw_dump) != 37976);
8231 	BUILD_BUG_ON(sizeof(struct qla25xx_fw_dump) != 39228);
8232 	BUILD_BUG_ON(sizeof(struct qla2xxx_fce_chain) != 52);
8233 	BUILD_BUG_ON(sizeof(struct qla2xxx_fw_dump) != 136172);
8234 	BUILD_BUG_ON(sizeof(struct qla2xxx_mq_chain) != 524);
8235 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_chain) != 8);
8236 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_header) != 12);
8237 	BUILD_BUG_ON(sizeof(struct qla2xxx_offld_chain) != 24);
8238 	BUILD_BUG_ON(sizeof(struct qla81xx_fw_dump) != 39420);
8239 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_data_desc) != 28);
8240 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_table_desc) != 32);
8241 	BUILD_BUG_ON(sizeof(struct qla83xx_fw_dump) != 51196);
8242 	BUILD_BUG_ON(sizeof(struct qla_fcp_prio_cfg) != FCP_PRIO_CFG_SIZE);
8243 	BUILD_BUG_ON(sizeof(struct qla_fdt_layout) != 128);
8244 	BUILD_BUG_ON(sizeof(struct qla_flt_header) != 8);
8245 	BUILD_BUG_ON(sizeof(struct qla_flt_region) != 16);
8246 	BUILD_BUG_ON(sizeof(struct qla_npiv_entry) != 24);
8247 	BUILD_BUG_ON(sizeof(struct qla_npiv_header) != 16);
8248 	BUILD_BUG_ON(sizeof(struct rdp_rsp_payload) != 336);
8249 	BUILD_BUG_ON(sizeof(struct sns_cmd_pkt) != 2064);
8250 	BUILD_BUG_ON(sizeof(struct sts_entry_24xx) != 64);
8251 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry) != 64);
8252 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry_fx00) != 64);
8253 	BUILD_BUG_ON(sizeof(struct verify_chip_entry_84xx) != 64);
8254 	BUILD_BUG_ON(sizeof(struct verify_chip_rsp_84xx) != 52);
8255 	BUILD_BUG_ON(sizeof(struct vf_evfp_entry_24xx) != 56);
8256 	BUILD_BUG_ON(sizeof(struct vp_config_entry_24xx) != 64);
8257 	BUILD_BUG_ON(sizeof(struct vp_ctrl_entry_24xx) != 64);
8258 	BUILD_BUG_ON(sizeof(struct vp_rpt_id_entry_24xx) != 64);
8259 	BUILD_BUG_ON(sizeof(sts21_entry_t) != 64);
8260 	BUILD_BUG_ON(sizeof(sts22_entry_t) != 64);
8261 	BUILD_BUG_ON(sizeof(sts_cont_entry_t) != 64);
8262 	BUILD_BUG_ON(sizeof(sts_entry_t) != 64);
8263 	BUILD_BUG_ON(sizeof(sw_info_t) != 32);
8264 	BUILD_BUG_ON(sizeof(target_id_t) != 2);
8265 
8266 	qla_trace_init();
8267 
8268 	/* Allocate cache for SRBs. */
8269 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
8270 	    SLAB_HWCACHE_ALIGN, NULL);
8271 	if (srb_cachep == NULL) {
8272 		ql_log(ql_log_fatal, NULL, 0x0001,
8273 		    "Unable to allocate SRB cache...Failing load!.\n");
8274 		return -ENOMEM;
8275 	}
8276 
8277 	/* Initialize target kmem_cache and mem_pools */
8278 	ret = qlt_init();
8279 	if (ret < 0) {
8280 		goto destroy_cache;
8281 	} else if (ret > 0) {
8282 		/*
8283 		 * If initiator mode is explictly disabled by qlt_init(),
8284 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
8285 		 * performing scsi_scan_target() during LOOP UP event.
8286 		 */
8287 		qla2xxx_transport_functions.disable_target_scan = 1;
8288 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
8289 	}
8290 
8291 	/* Derive version string. */
8292 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
8293 	if (ql2xextended_error_logging)
8294 		strcat(qla2x00_version_str, "-debug");
8295 	if (ql2xextended_error_logging == 1)
8296 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
8297 
8298 	qla2xxx_transport_template =
8299 	    fc_attach_transport(&qla2xxx_transport_functions);
8300 	if (!qla2xxx_transport_template) {
8301 		ql_log(ql_log_fatal, NULL, 0x0002,
8302 		    "fc_attach_transport failed...Failing load!.\n");
8303 		ret = -ENODEV;
8304 		goto qlt_exit;
8305 	}
8306 
8307 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
8308 	if (apidev_major < 0) {
8309 		ql_log(ql_log_fatal, NULL, 0x0003,
8310 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
8311 	}
8312 
8313 	qla2xxx_transport_vport_template =
8314 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
8315 	if (!qla2xxx_transport_vport_template) {
8316 		ql_log(ql_log_fatal, NULL, 0x0004,
8317 		    "fc_attach_transport vport failed...Failing load!.\n");
8318 		ret = -ENODEV;
8319 		goto unreg_chrdev;
8320 	}
8321 	ql_log(ql_log_info, NULL, 0x0005,
8322 	    "QLogic Fibre Channel HBA Driver: %s.\n",
8323 	    qla2x00_version_str);
8324 	ret = pci_register_driver(&qla2xxx_pci_driver);
8325 	if (ret) {
8326 		ql_log(ql_log_fatal, NULL, 0x0006,
8327 		    "pci_register_driver failed...ret=%d Failing load!.\n",
8328 		    ret);
8329 		goto release_vport_transport;
8330 	}
8331 	return ret;
8332 
8333 release_vport_transport:
8334 	fc_release_transport(qla2xxx_transport_vport_template);
8335 
8336 unreg_chrdev:
8337 	if (apidev_major >= 0)
8338 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8339 	fc_release_transport(qla2xxx_transport_template);
8340 
8341 qlt_exit:
8342 	qlt_exit();
8343 
8344 destroy_cache:
8345 	kmem_cache_destroy(srb_cachep);
8346 
8347 	qla_trace_uninit();
8348 	return ret;
8349 }
8350 
8351 /**
8352  * qla2x00_module_exit - Module cleanup.
8353  **/
8354 static void __exit
8355 qla2x00_module_exit(void)
8356 {
8357 	pci_unregister_driver(&qla2xxx_pci_driver);
8358 	qla2x00_release_firmware();
8359 	kmem_cache_destroy(ctx_cachep);
8360 	fc_release_transport(qla2xxx_transport_vport_template);
8361 	if (apidev_major >= 0)
8362 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8363 	fc_release_transport(qla2xxx_transport_template);
8364 	qlt_exit();
8365 	kmem_cache_destroy(srb_cachep);
8366 	qla_trace_uninit();
8367 }
8368 
8369 module_init(qla2x00_module_init);
8370 module_exit(qla2x00_module_exit);
8371 
8372 MODULE_AUTHOR("QLogic Corporation");
8373 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
8374 MODULE_LICENSE("GPL");
8375 MODULE_FIRMWARE(FW_FILE_ISP21XX);
8376 MODULE_FIRMWARE(FW_FILE_ISP22XX);
8377 MODULE_FIRMWARE(FW_FILE_ISP2300);
8378 MODULE_FIRMWARE(FW_FILE_ISP2322);
8379 MODULE_FIRMWARE(FW_FILE_ISP24XX);
8380 MODULE_FIRMWARE(FW_FILE_ISP25XX);
8381