xref: /linux/drivers/scsi/qla2xxx/qla_os.c (revision e3fc2fd77c63cd2e37ebd33a336602a68650f22b)
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 			if (qla2x00_chip_is_down(vha)) {
1879 				req->outstanding_cmds[cnt] = NULL;
1880 				sp->done(sp, res);
1881 				continue;
1882 			}
1883 
1884 			switch (sp->cmd_type) {
1885 			case TYPE_SRB:
1886 				qla2x00_abort_srb(qp, sp, res, &flags);
1887 				break;
1888 			case TYPE_TGT_CMD:
1889 				if (!vha->hw->tgt.tgt_ops || !tgt ||
1890 				    qla_ini_mode_enabled(vha)) {
1891 					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
1892 					    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
1893 					    vha->dpc_flags);
1894 					continue;
1895 				}
1896 				cmd = (struct qla_tgt_cmd *)sp;
1897 				cmd->aborted = 1;
1898 				break;
1899 			case TYPE_TGT_TMCMD:
1900 				/* Skip task management functions. */
1901 				break;
1902 			default:
1903 				break;
1904 			}
1905 			req->outstanding_cmds[cnt] = NULL;
1906 		}
1907 	}
1908 	spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1909 }
1910 
1911 /*
1912  * The caller must ensure that no completion interrupts will happen
1913  * while this function is in progress.
1914  */
1915 void
1916 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1917 {
1918 	int que;
1919 	struct qla_hw_data *ha = vha->hw;
1920 
1921 	/* Continue only if initialization complete. */
1922 	if (!ha->base_qpair)
1923 		return;
1924 	__qla2x00_abort_all_cmds(ha->base_qpair, res);
1925 
1926 	if (!ha->queue_pair_map)
1927 		return;
1928 	for (que = 0; que < ha->max_qpairs; que++) {
1929 		if (!ha->queue_pair_map[que])
1930 			continue;
1931 
1932 		__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
1933 	}
1934 }
1935 
1936 static int
1937 qla2xxx_slave_alloc(struct scsi_device *sdev)
1938 {
1939 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1940 
1941 	if (!rport || fc_remote_port_chkready(rport))
1942 		return -ENXIO;
1943 
1944 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1945 
1946 	return 0;
1947 }
1948 
1949 static int
1950 qla2xxx_slave_configure(struct scsi_device *sdev)
1951 {
1952 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1953 	struct req_que *req = vha->req;
1954 
1955 	scsi_change_queue_depth(sdev, req->max_q_depth);
1956 	return 0;
1957 }
1958 
1959 static void
1960 qla2xxx_slave_destroy(struct scsi_device *sdev)
1961 {
1962 	sdev->hostdata = NULL;
1963 }
1964 
1965 /**
1966  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1967  * @ha: HA context
1968  *
1969  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1970  * supported addressing method.
1971  */
1972 static void
1973 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1974 {
1975 	/* Assume a 32bit DMA mask. */
1976 	ha->flags.enable_64bit_addressing = 0;
1977 
1978 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1979 		/* Any upper-dword bits set? */
1980 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1981 		    !dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1982 			/* Ok, a 64bit DMA mask is applicable. */
1983 			ha->flags.enable_64bit_addressing = 1;
1984 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1985 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1986 			return;
1987 		}
1988 	}
1989 
1990 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1991 	dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1992 }
1993 
1994 static void
1995 qla2x00_enable_intrs(struct qla_hw_data *ha)
1996 {
1997 	unsigned long flags = 0;
1998 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1999 
2000 	spin_lock_irqsave(&ha->hardware_lock, flags);
2001 	ha->interrupts_on = 1;
2002 	/* enable risc and host interrupts */
2003 	wrt_reg_word(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
2004 	rd_reg_word(&reg->ictrl);
2005 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2006 
2007 }
2008 
2009 static void
2010 qla2x00_disable_intrs(struct qla_hw_data *ha)
2011 {
2012 	unsigned long flags = 0;
2013 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2014 
2015 	spin_lock_irqsave(&ha->hardware_lock, flags);
2016 	ha->interrupts_on = 0;
2017 	/* disable risc and host interrupts */
2018 	wrt_reg_word(&reg->ictrl, 0);
2019 	rd_reg_word(&reg->ictrl);
2020 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2021 }
2022 
2023 static void
2024 qla24xx_enable_intrs(struct qla_hw_data *ha)
2025 {
2026 	unsigned long flags = 0;
2027 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2028 
2029 	spin_lock_irqsave(&ha->hardware_lock, flags);
2030 	ha->interrupts_on = 1;
2031 	wrt_reg_dword(&reg->ictrl, ICRX_EN_RISC_INT);
2032 	rd_reg_dword(&reg->ictrl);
2033 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2034 }
2035 
2036 static void
2037 qla24xx_disable_intrs(struct qla_hw_data *ha)
2038 {
2039 	unsigned long flags = 0;
2040 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2041 
2042 	if (IS_NOPOLLING_TYPE(ha))
2043 		return;
2044 	spin_lock_irqsave(&ha->hardware_lock, flags);
2045 	ha->interrupts_on = 0;
2046 	wrt_reg_dword(&reg->ictrl, 0);
2047 	rd_reg_dword(&reg->ictrl);
2048 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2049 }
2050 
2051 static int
2052 qla2x00_iospace_config(struct qla_hw_data *ha)
2053 {
2054 	resource_size_t pio;
2055 	uint16_t msix;
2056 
2057 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2058 	    QLA2XXX_DRIVER_NAME)) {
2059 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
2060 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2061 		    pci_name(ha->pdev));
2062 		goto iospace_error_exit;
2063 	}
2064 	if (!(ha->bars & 1))
2065 		goto skip_pio;
2066 
2067 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
2068 	pio = pci_resource_start(ha->pdev, 0);
2069 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
2070 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2071 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
2072 			    "Invalid pci I/O region size (%s).\n",
2073 			    pci_name(ha->pdev));
2074 			pio = 0;
2075 		}
2076 	} else {
2077 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
2078 		    "Region #0 no a PIO resource (%s).\n",
2079 		    pci_name(ha->pdev));
2080 		pio = 0;
2081 	}
2082 	ha->pio_address = pio;
2083 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
2084 	    "PIO address=%llu.\n",
2085 	    (unsigned long long)ha->pio_address);
2086 
2087 skip_pio:
2088 	/* Use MMIO operations for all accesses. */
2089 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
2090 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
2091 		    "Region #1 not an MMIO resource (%s), aborting.\n",
2092 		    pci_name(ha->pdev));
2093 		goto iospace_error_exit;
2094 	}
2095 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
2096 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
2097 		    "Invalid PCI mem region size (%s), aborting.\n",
2098 		    pci_name(ha->pdev));
2099 		goto iospace_error_exit;
2100 	}
2101 
2102 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
2103 	if (!ha->iobase) {
2104 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
2105 		    "Cannot remap MMIO (%s), aborting.\n",
2106 		    pci_name(ha->pdev));
2107 		goto iospace_error_exit;
2108 	}
2109 
2110 	/* Determine queue resources */
2111 	ha->max_req_queues = ha->max_rsp_queues = 1;
2112 	ha->msix_count = QLA_BASE_VECTORS;
2113 
2114 	/* Check if FW supports MQ or not */
2115 	if (!(ha->fw_attributes & BIT_6))
2116 		goto mqiobase_exit;
2117 
2118 	if (!ql2xmqsupport || !ql2xnvmeenable ||
2119 	    (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
2120 		goto mqiobase_exit;
2121 
2122 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
2123 			pci_resource_len(ha->pdev, 3));
2124 	if (ha->mqiobase) {
2125 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
2126 		    "MQIO Base=%p.\n", ha->mqiobase);
2127 		/* Read MSIX vector size of the board */
2128 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
2129 		ha->msix_count = msix + 1;
2130 		/* Max queues are bounded by available msix vectors */
2131 		/* MB interrupt uses 1 vector */
2132 		ha->max_req_queues = ha->msix_count - 1;
2133 		ha->max_rsp_queues = ha->max_req_queues;
2134 		/* Queue pairs is the max value minus the base queue pair */
2135 		ha->max_qpairs = ha->max_rsp_queues - 1;
2136 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
2137 		    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2138 
2139 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
2140 		    "MSI-X vector count: %d.\n", ha->msix_count);
2141 	} else
2142 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
2143 		    "BAR 3 not enabled.\n");
2144 
2145 mqiobase_exit:
2146 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
2147 	    "MSIX Count: %d.\n", ha->msix_count);
2148 	return (0);
2149 
2150 iospace_error_exit:
2151 	return (-ENOMEM);
2152 }
2153 
2154 
2155 static int
2156 qla83xx_iospace_config(struct qla_hw_data *ha)
2157 {
2158 	uint16_t msix;
2159 
2160 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2161 	    QLA2XXX_DRIVER_NAME)) {
2162 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
2163 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2164 		    pci_name(ha->pdev));
2165 
2166 		goto iospace_error_exit;
2167 	}
2168 
2169 	/* Use MMIO operations for all accesses. */
2170 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
2171 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
2172 		    "Invalid pci I/O region size (%s).\n",
2173 		    pci_name(ha->pdev));
2174 		goto iospace_error_exit;
2175 	}
2176 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2177 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
2178 		    "Invalid PCI mem region size (%s), aborting\n",
2179 			pci_name(ha->pdev));
2180 		goto iospace_error_exit;
2181 	}
2182 
2183 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
2184 	if (!ha->iobase) {
2185 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
2186 		    "Cannot remap MMIO (%s), aborting.\n",
2187 		    pci_name(ha->pdev));
2188 		goto iospace_error_exit;
2189 	}
2190 
2191 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
2192 	/* 83XX 26XX always use MQ type access for queues
2193 	 * - mbar 2, a.k.a region 4 */
2194 	ha->max_req_queues = ha->max_rsp_queues = 1;
2195 	ha->msix_count = QLA_BASE_VECTORS;
2196 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
2197 			pci_resource_len(ha->pdev, 4));
2198 
2199 	if (!ha->mqiobase) {
2200 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
2201 		    "BAR2/region4 not enabled\n");
2202 		goto mqiobase_exit;
2203 	}
2204 
2205 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
2206 			pci_resource_len(ha->pdev, 2));
2207 	if (ha->msixbase) {
2208 		/* Read MSIX vector size of the board */
2209 		pci_read_config_word(ha->pdev,
2210 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
2211 		ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE)  + 1;
2212 		/*
2213 		 * By default, driver uses at least two msix vectors
2214 		 * (default & rspq)
2215 		 */
2216 		if (ql2xmqsupport || ql2xnvmeenable) {
2217 			/* MB interrupt uses 1 vector */
2218 			ha->max_req_queues = ha->msix_count - 1;
2219 
2220 			/* ATIOQ needs 1 vector. That's 1 less QPair */
2221 			if (QLA_TGT_MODE_ENABLED())
2222 				ha->max_req_queues--;
2223 
2224 			ha->max_rsp_queues = ha->max_req_queues;
2225 
2226 			/* Queue pairs is the max value minus
2227 			 * the base queue pair */
2228 			ha->max_qpairs = ha->max_req_queues - 1;
2229 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x00e3,
2230 			    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2231 		}
2232 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
2233 		    "MSI-X vector count: %d.\n", ha->msix_count);
2234 	} else
2235 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
2236 		    "BAR 1 not enabled.\n");
2237 
2238 mqiobase_exit:
2239 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
2240 	    "MSIX Count: %d.\n", ha->msix_count);
2241 	return 0;
2242 
2243 iospace_error_exit:
2244 	return -ENOMEM;
2245 }
2246 
2247 static struct isp_operations qla2100_isp_ops = {
2248 	.pci_config		= qla2100_pci_config,
2249 	.reset_chip		= qla2x00_reset_chip,
2250 	.chip_diag		= qla2x00_chip_diag,
2251 	.config_rings		= qla2x00_config_rings,
2252 	.reset_adapter		= qla2x00_reset_adapter,
2253 	.nvram_config		= qla2x00_nvram_config,
2254 	.update_fw_options	= qla2x00_update_fw_options,
2255 	.load_risc		= qla2x00_load_risc,
2256 	.pci_info_str		= qla2x00_pci_info_str,
2257 	.fw_version_str		= qla2x00_fw_version_str,
2258 	.intr_handler		= qla2100_intr_handler,
2259 	.enable_intrs		= qla2x00_enable_intrs,
2260 	.disable_intrs		= qla2x00_disable_intrs,
2261 	.abort_command		= qla2x00_abort_command,
2262 	.target_reset		= qla2x00_abort_target,
2263 	.lun_reset		= qla2x00_lun_reset,
2264 	.fabric_login		= qla2x00_login_fabric,
2265 	.fabric_logout		= qla2x00_fabric_logout,
2266 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2267 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2268 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2269 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2270 	.read_nvram		= qla2x00_read_nvram_data,
2271 	.write_nvram		= qla2x00_write_nvram_data,
2272 	.fw_dump		= qla2100_fw_dump,
2273 	.beacon_on		= NULL,
2274 	.beacon_off		= NULL,
2275 	.beacon_blink		= NULL,
2276 	.read_optrom		= qla2x00_read_optrom_data,
2277 	.write_optrom		= qla2x00_write_optrom_data,
2278 	.get_flash_version	= qla2x00_get_flash_version,
2279 	.start_scsi		= qla2x00_start_scsi,
2280 	.start_scsi_mq          = NULL,
2281 	.abort_isp		= qla2x00_abort_isp,
2282 	.iospace_config     	= qla2x00_iospace_config,
2283 	.initialize_adapter	= qla2x00_initialize_adapter,
2284 };
2285 
2286 static struct isp_operations qla2300_isp_ops = {
2287 	.pci_config		= qla2300_pci_config,
2288 	.reset_chip		= qla2x00_reset_chip,
2289 	.chip_diag		= qla2x00_chip_diag,
2290 	.config_rings		= qla2x00_config_rings,
2291 	.reset_adapter		= qla2x00_reset_adapter,
2292 	.nvram_config		= qla2x00_nvram_config,
2293 	.update_fw_options	= qla2x00_update_fw_options,
2294 	.load_risc		= qla2x00_load_risc,
2295 	.pci_info_str		= qla2x00_pci_info_str,
2296 	.fw_version_str		= qla2x00_fw_version_str,
2297 	.intr_handler		= qla2300_intr_handler,
2298 	.enable_intrs		= qla2x00_enable_intrs,
2299 	.disable_intrs		= qla2x00_disable_intrs,
2300 	.abort_command		= qla2x00_abort_command,
2301 	.target_reset		= qla2x00_abort_target,
2302 	.lun_reset		= qla2x00_lun_reset,
2303 	.fabric_login		= qla2x00_login_fabric,
2304 	.fabric_logout		= qla2x00_fabric_logout,
2305 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2306 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2307 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2308 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2309 	.read_nvram		= qla2x00_read_nvram_data,
2310 	.write_nvram		= qla2x00_write_nvram_data,
2311 	.fw_dump		= qla2300_fw_dump,
2312 	.beacon_on		= qla2x00_beacon_on,
2313 	.beacon_off		= qla2x00_beacon_off,
2314 	.beacon_blink		= qla2x00_beacon_blink,
2315 	.read_optrom		= qla2x00_read_optrom_data,
2316 	.write_optrom		= qla2x00_write_optrom_data,
2317 	.get_flash_version	= qla2x00_get_flash_version,
2318 	.start_scsi		= qla2x00_start_scsi,
2319 	.start_scsi_mq          = NULL,
2320 	.abort_isp		= qla2x00_abort_isp,
2321 	.iospace_config		= qla2x00_iospace_config,
2322 	.initialize_adapter	= qla2x00_initialize_adapter,
2323 };
2324 
2325 static struct isp_operations qla24xx_isp_ops = {
2326 	.pci_config		= qla24xx_pci_config,
2327 	.reset_chip		= qla24xx_reset_chip,
2328 	.chip_diag		= qla24xx_chip_diag,
2329 	.config_rings		= qla24xx_config_rings,
2330 	.reset_adapter		= qla24xx_reset_adapter,
2331 	.nvram_config		= qla24xx_nvram_config,
2332 	.update_fw_options	= qla24xx_update_fw_options,
2333 	.load_risc		= qla24xx_load_risc,
2334 	.pci_info_str		= qla24xx_pci_info_str,
2335 	.fw_version_str		= qla24xx_fw_version_str,
2336 	.intr_handler		= qla24xx_intr_handler,
2337 	.enable_intrs		= qla24xx_enable_intrs,
2338 	.disable_intrs		= qla24xx_disable_intrs,
2339 	.abort_command		= qla24xx_abort_command,
2340 	.target_reset		= qla24xx_abort_target,
2341 	.lun_reset		= qla24xx_lun_reset,
2342 	.fabric_login		= qla24xx_login_fabric,
2343 	.fabric_logout		= qla24xx_fabric_logout,
2344 	.calc_req_entries	= NULL,
2345 	.build_iocbs		= NULL,
2346 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2347 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2348 	.read_nvram		= qla24xx_read_nvram_data,
2349 	.write_nvram		= qla24xx_write_nvram_data,
2350 	.fw_dump		= qla24xx_fw_dump,
2351 	.beacon_on		= qla24xx_beacon_on,
2352 	.beacon_off		= qla24xx_beacon_off,
2353 	.beacon_blink		= qla24xx_beacon_blink,
2354 	.read_optrom		= qla24xx_read_optrom_data,
2355 	.write_optrom		= qla24xx_write_optrom_data,
2356 	.get_flash_version	= qla24xx_get_flash_version,
2357 	.start_scsi		= qla24xx_start_scsi,
2358 	.start_scsi_mq          = NULL,
2359 	.abort_isp		= qla2x00_abort_isp,
2360 	.iospace_config		= qla2x00_iospace_config,
2361 	.initialize_adapter	= qla2x00_initialize_adapter,
2362 };
2363 
2364 static struct isp_operations qla25xx_isp_ops = {
2365 	.pci_config		= qla25xx_pci_config,
2366 	.reset_chip		= qla24xx_reset_chip,
2367 	.chip_diag		= qla24xx_chip_diag,
2368 	.config_rings		= qla24xx_config_rings,
2369 	.reset_adapter		= qla24xx_reset_adapter,
2370 	.nvram_config		= qla24xx_nvram_config,
2371 	.update_fw_options	= qla24xx_update_fw_options,
2372 	.load_risc		= qla24xx_load_risc,
2373 	.pci_info_str		= qla24xx_pci_info_str,
2374 	.fw_version_str		= qla24xx_fw_version_str,
2375 	.intr_handler		= qla24xx_intr_handler,
2376 	.enable_intrs		= qla24xx_enable_intrs,
2377 	.disable_intrs		= qla24xx_disable_intrs,
2378 	.abort_command		= qla24xx_abort_command,
2379 	.target_reset		= qla24xx_abort_target,
2380 	.lun_reset		= qla24xx_lun_reset,
2381 	.fabric_login		= qla24xx_login_fabric,
2382 	.fabric_logout		= qla24xx_fabric_logout,
2383 	.calc_req_entries	= NULL,
2384 	.build_iocbs		= NULL,
2385 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2386 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2387 	.read_nvram		= qla25xx_read_nvram_data,
2388 	.write_nvram		= qla25xx_write_nvram_data,
2389 	.fw_dump		= qla25xx_fw_dump,
2390 	.beacon_on		= qla24xx_beacon_on,
2391 	.beacon_off		= qla24xx_beacon_off,
2392 	.beacon_blink		= qla24xx_beacon_blink,
2393 	.read_optrom		= qla25xx_read_optrom_data,
2394 	.write_optrom		= qla24xx_write_optrom_data,
2395 	.get_flash_version	= qla24xx_get_flash_version,
2396 	.start_scsi		= qla24xx_dif_start_scsi,
2397 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2398 	.abort_isp		= qla2x00_abort_isp,
2399 	.iospace_config		= qla2x00_iospace_config,
2400 	.initialize_adapter	= qla2x00_initialize_adapter,
2401 };
2402 
2403 static struct isp_operations qla81xx_isp_ops = {
2404 	.pci_config		= qla25xx_pci_config,
2405 	.reset_chip		= qla24xx_reset_chip,
2406 	.chip_diag		= qla24xx_chip_diag,
2407 	.config_rings		= qla24xx_config_rings,
2408 	.reset_adapter		= qla24xx_reset_adapter,
2409 	.nvram_config		= qla81xx_nvram_config,
2410 	.update_fw_options	= qla24xx_update_fw_options,
2411 	.load_risc		= qla81xx_load_risc,
2412 	.pci_info_str		= qla24xx_pci_info_str,
2413 	.fw_version_str		= qla24xx_fw_version_str,
2414 	.intr_handler		= qla24xx_intr_handler,
2415 	.enable_intrs		= qla24xx_enable_intrs,
2416 	.disable_intrs		= qla24xx_disable_intrs,
2417 	.abort_command		= qla24xx_abort_command,
2418 	.target_reset		= qla24xx_abort_target,
2419 	.lun_reset		= qla24xx_lun_reset,
2420 	.fabric_login		= qla24xx_login_fabric,
2421 	.fabric_logout		= qla24xx_fabric_logout,
2422 	.calc_req_entries	= NULL,
2423 	.build_iocbs		= NULL,
2424 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2425 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2426 	.read_nvram		= NULL,
2427 	.write_nvram		= NULL,
2428 	.fw_dump		= qla81xx_fw_dump,
2429 	.beacon_on		= qla24xx_beacon_on,
2430 	.beacon_off		= qla24xx_beacon_off,
2431 	.beacon_blink		= qla83xx_beacon_blink,
2432 	.read_optrom		= qla25xx_read_optrom_data,
2433 	.write_optrom		= qla24xx_write_optrom_data,
2434 	.get_flash_version	= qla24xx_get_flash_version,
2435 	.start_scsi		= qla24xx_dif_start_scsi,
2436 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2437 	.abort_isp		= qla2x00_abort_isp,
2438 	.iospace_config		= qla2x00_iospace_config,
2439 	.initialize_adapter	= qla2x00_initialize_adapter,
2440 };
2441 
2442 static struct isp_operations qla82xx_isp_ops = {
2443 	.pci_config		= qla82xx_pci_config,
2444 	.reset_chip		= qla82xx_reset_chip,
2445 	.chip_diag		= qla24xx_chip_diag,
2446 	.config_rings		= qla82xx_config_rings,
2447 	.reset_adapter		= qla24xx_reset_adapter,
2448 	.nvram_config		= qla81xx_nvram_config,
2449 	.update_fw_options	= qla24xx_update_fw_options,
2450 	.load_risc		= qla82xx_load_risc,
2451 	.pci_info_str		= qla24xx_pci_info_str,
2452 	.fw_version_str		= qla24xx_fw_version_str,
2453 	.intr_handler		= qla82xx_intr_handler,
2454 	.enable_intrs		= qla82xx_enable_intrs,
2455 	.disable_intrs		= qla82xx_disable_intrs,
2456 	.abort_command		= qla24xx_abort_command,
2457 	.target_reset		= qla24xx_abort_target,
2458 	.lun_reset		= qla24xx_lun_reset,
2459 	.fabric_login		= qla24xx_login_fabric,
2460 	.fabric_logout		= qla24xx_fabric_logout,
2461 	.calc_req_entries	= NULL,
2462 	.build_iocbs		= NULL,
2463 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2464 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2465 	.read_nvram		= qla24xx_read_nvram_data,
2466 	.write_nvram		= qla24xx_write_nvram_data,
2467 	.fw_dump		= qla82xx_fw_dump,
2468 	.beacon_on		= qla82xx_beacon_on,
2469 	.beacon_off		= qla82xx_beacon_off,
2470 	.beacon_blink		= NULL,
2471 	.read_optrom		= qla82xx_read_optrom_data,
2472 	.write_optrom		= qla82xx_write_optrom_data,
2473 	.get_flash_version	= qla82xx_get_flash_version,
2474 	.start_scsi             = qla82xx_start_scsi,
2475 	.start_scsi_mq          = NULL,
2476 	.abort_isp		= qla82xx_abort_isp,
2477 	.iospace_config     	= qla82xx_iospace_config,
2478 	.initialize_adapter	= qla2x00_initialize_adapter,
2479 };
2480 
2481 static struct isp_operations qla8044_isp_ops = {
2482 	.pci_config		= qla82xx_pci_config,
2483 	.reset_chip		= qla82xx_reset_chip,
2484 	.chip_diag		= qla24xx_chip_diag,
2485 	.config_rings		= qla82xx_config_rings,
2486 	.reset_adapter		= qla24xx_reset_adapter,
2487 	.nvram_config		= qla81xx_nvram_config,
2488 	.update_fw_options	= qla24xx_update_fw_options,
2489 	.load_risc		= qla82xx_load_risc,
2490 	.pci_info_str		= qla24xx_pci_info_str,
2491 	.fw_version_str		= qla24xx_fw_version_str,
2492 	.intr_handler		= qla8044_intr_handler,
2493 	.enable_intrs		= qla82xx_enable_intrs,
2494 	.disable_intrs		= qla82xx_disable_intrs,
2495 	.abort_command		= qla24xx_abort_command,
2496 	.target_reset		= qla24xx_abort_target,
2497 	.lun_reset		= qla24xx_lun_reset,
2498 	.fabric_login		= qla24xx_login_fabric,
2499 	.fabric_logout		= qla24xx_fabric_logout,
2500 	.calc_req_entries	= NULL,
2501 	.build_iocbs		= NULL,
2502 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2503 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2504 	.read_nvram		= NULL,
2505 	.write_nvram		= NULL,
2506 	.fw_dump		= qla8044_fw_dump,
2507 	.beacon_on		= qla82xx_beacon_on,
2508 	.beacon_off		= qla82xx_beacon_off,
2509 	.beacon_blink		= NULL,
2510 	.read_optrom		= qla8044_read_optrom_data,
2511 	.write_optrom		= qla8044_write_optrom_data,
2512 	.get_flash_version	= qla82xx_get_flash_version,
2513 	.start_scsi             = qla82xx_start_scsi,
2514 	.start_scsi_mq          = NULL,
2515 	.abort_isp		= qla8044_abort_isp,
2516 	.iospace_config		= qla82xx_iospace_config,
2517 	.initialize_adapter	= qla2x00_initialize_adapter,
2518 };
2519 
2520 static struct isp_operations qla83xx_isp_ops = {
2521 	.pci_config		= qla25xx_pci_config,
2522 	.reset_chip		= qla24xx_reset_chip,
2523 	.chip_diag		= qla24xx_chip_diag,
2524 	.config_rings		= qla24xx_config_rings,
2525 	.reset_adapter		= qla24xx_reset_adapter,
2526 	.nvram_config		= qla81xx_nvram_config,
2527 	.update_fw_options	= qla24xx_update_fw_options,
2528 	.load_risc		= qla81xx_load_risc,
2529 	.pci_info_str		= qla24xx_pci_info_str,
2530 	.fw_version_str		= qla24xx_fw_version_str,
2531 	.intr_handler		= qla24xx_intr_handler,
2532 	.enable_intrs		= qla24xx_enable_intrs,
2533 	.disable_intrs		= qla24xx_disable_intrs,
2534 	.abort_command		= qla24xx_abort_command,
2535 	.target_reset		= qla24xx_abort_target,
2536 	.lun_reset		= qla24xx_lun_reset,
2537 	.fabric_login		= qla24xx_login_fabric,
2538 	.fabric_logout		= qla24xx_fabric_logout,
2539 	.calc_req_entries	= NULL,
2540 	.build_iocbs		= NULL,
2541 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2542 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2543 	.read_nvram		= NULL,
2544 	.write_nvram		= NULL,
2545 	.fw_dump		= qla83xx_fw_dump,
2546 	.beacon_on		= qla24xx_beacon_on,
2547 	.beacon_off		= qla24xx_beacon_off,
2548 	.beacon_blink		= qla83xx_beacon_blink,
2549 	.read_optrom		= qla25xx_read_optrom_data,
2550 	.write_optrom		= qla24xx_write_optrom_data,
2551 	.get_flash_version	= qla24xx_get_flash_version,
2552 	.start_scsi		= qla24xx_dif_start_scsi,
2553 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2554 	.abort_isp		= qla2x00_abort_isp,
2555 	.iospace_config		= qla83xx_iospace_config,
2556 	.initialize_adapter	= qla2x00_initialize_adapter,
2557 };
2558 
2559 static struct isp_operations qlafx00_isp_ops = {
2560 	.pci_config		= qlafx00_pci_config,
2561 	.reset_chip		= qlafx00_soft_reset,
2562 	.chip_diag		= qlafx00_chip_diag,
2563 	.config_rings		= qlafx00_config_rings,
2564 	.reset_adapter		= qlafx00_soft_reset,
2565 	.nvram_config		= NULL,
2566 	.update_fw_options	= NULL,
2567 	.load_risc		= NULL,
2568 	.pci_info_str		= qlafx00_pci_info_str,
2569 	.fw_version_str		= qlafx00_fw_version_str,
2570 	.intr_handler		= qlafx00_intr_handler,
2571 	.enable_intrs		= qlafx00_enable_intrs,
2572 	.disable_intrs		= qlafx00_disable_intrs,
2573 	.abort_command		= qla24xx_async_abort_command,
2574 	.target_reset		= qlafx00_abort_target,
2575 	.lun_reset		= qlafx00_lun_reset,
2576 	.fabric_login		= NULL,
2577 	.fabric_logout		= NULL,
2578 	.calc_req_entries	= NULL,
2579 	.build_iocbs		= NULL,
2580 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2581 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2582 	.read_nvram		= qla24xx_read_nvram_data,
2583 	.write_nvram		= qla24xx_write_nvram_data,
2584 	.fw_dump		= NULL,
2585 	.beacon_on		= qla24xx_beacon_on,
2586 	.beacon_off		= qla24xx_beacon_off,
2587 	.beacon_blink		= NULL,
2588 	.read_optrom		= qla24xx_read_optrom_data,
2589 	.write_optrom		= qla24xx_write_optrom_data,
2590 	.get_flash_version	= qla24xx_get_flash_version,
2591 	.start_scsi		= qlafx00_start_scsi,
2592 	.start_scsi_mq          = NULL,
2593 	.abort_isp		= qlafx00_abort_isp,
2594 	.iospace_config		= qlafx00_iospace_config,
2595 	.initialize_adapter	= qlafx00_initialize_adapter,
2596 };
2597 
2598 static struct isp_operations qla27xx_isp_ops = {
2599 	.pci_config		= qla25xx_pci_config,
2600 	.reset_chip		= qla24xx_reset_chip,
2601 	.chip_diag		= qla24xx_chip_diag,
2602 	.config_rings		= qla24xx_config_rings,
2603 	.reset_adapter		= qla24xx_reset_adapter,
2604 	.nvram_config		= qla81xx_nvram_config,
2605 	.update_fw_options	= qla24xx_update_fw_options,
2606 	.load_risc		= qla81xx_load_risc,
2607 	.pci_info_str		= qla24xx_pci_info_str,
2608 	.fw_version_str		= qla24xx_fw_version_str,
2609 	.intr_handler		= qla24xx_intr_handler,
2610 	.enable_intrs		= qla24xx_enable_intrs,
2611 	.disable_intrs		= qla24xx_disable_intrs,
2612 	.abort_command		= qla24xx_abort_command,
2613 	.target_reset		= qla24xx_abort_target,
2614 	.lun_reset		= qla24xx_lun_reset,
2615 	.fabric_login		= qla24xx_login_fabric,
2616 	.fabric_logout		= qla24xx_fabric_logout,
2617 	.calc_req_entries	= NULL,
2618 	.build_iocbs		= NULL,
2619 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2620 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2621 	.read_nvram		= NULL,
2622 	.write_nvram		= NULL,
2623 	.fw_dump		= qla27xx_fwdump,
2624 	.mpi_fw_dump		= qla27xx_mpi_fwdump,
2625 	.beacon_on		= qla24xx_beacon_on,
2626 	.beacon_off		= qla24xx_beacon_off,
2627 	.beacon_blink		= qla83xx_beacon_blink,
2628 	.read_optrom		= qla25xx_read_optrom_data,
2629 	.write_optrom		= qla24xx_write_optrom_data,
2630 	.get_flash_version	= qla24xx_get_flash_version,
2631 	.start_scsi		= qla24xx_dif_start_scsi,
2632 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2633 	.abort_isp		= qla2x00_abort_isp,
2634 	.iospace_config		= qla83xx_iospace_config,
2635 	.initialize_adapter	= qla2x00_initialize_adapter,
2636 };
2637 
2638 static inline void
2639 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2640 {
2641 	ha->device_type = DT_EXTENDED_IDS;
2642 	switch (ha->pdev->device) {
2643 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2644 		ha->isp_type |= DT_ISP2100;
2645 		ha->device_type &= ~DT_EXTENDED_IDS;
2646 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2647 		break;
2648 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2649 		ha->isp_type |= DT_ISP2200;
2650 		ha->device_type &= ~DT_EXTENDED_IDS;
2651 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2652 		break;
2653 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2654 		ha->isp_type |= DT_ISP2300;
2655 		ha->device_type |= DT_ZIO_SUPPORTED;
2656 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2657 		break;
2658 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2659 		ha->isp_type |= DT_ISP2312;
2660 		ha->device_type |= DT_ZIO_SUPPORTED;
2661 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2662 		break;
2663 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2664 		ha->isp_type |= DT_ISP2322;
2665 		ha->device_type |= DT_ZIO_SUPPORTED;
2666 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2667 		    ha->pdev->subsystem_device == 0x0170)
2668 			ha->device_type |= DT_OEM_001;
2669 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2670 		break;
2671 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2672 		ha->isp_type |= DT_ISP6312;
2673 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2674 		break;
2675 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2676 		ha->isp_type |= DT_ISP6322;
2677 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2678 		break;
2679 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2680 		ha->isp_type |= DT_ISP2422;
2681 		ha->device_type |= DT_ZIO_SUPPORTED;
2682 		ha->device_type |= DT_FWI2;
2683 		ha->device_type |= DT_IIDMA;
2684 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2685 		break;
2686 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2687 		ha->isp_type |= DT_ISP2432;
2688 		ha->device_type |= DT_ZIO_SUPPORTED;
2689 		ha->device_type |= DT_FWI2;
2690 		ha->device_type |= DT_IIDMA;
2691 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2692 		break;
2693 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2694 		ha->isp_type |= DT_ISP8432;
2695 		ha->device_type |= DT_ZIO_SUPPORTED;
2696 		ha->device_type |= DT_FWI2;
2697 		ha->device_type |= DT_IIDMA;
2698 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2699 		break;
2700 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2701 		ha->isp_type |= DT_ISP5422;
2702 		ha->device_type |= DT_FWI2;
2703 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2704 		break;
2705 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2706 		ha->isp_type |= DT_ISP5432;
2707 		ha->device_type |= DT_FWI2;
2708 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2709 		break;
2710 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2711 		ha->isp_type |= DT_ISP2532;
2712 		ha->device_type |= DT_ZIO_SUPPORTED;
2713 		ha->device_type |= DT_FWI2;
2714 		ha->device_type |= DT_IIDMA;
2715 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2716 		break;
2717 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2718 		ha->isp_type |= DT_ISP8001;
2719 		ha->device_type |= DT_ZIO_SUPPORTED;
2720 		ha->device_type |= DT_FWI2;
2721 		ha->device_type |= DT_IIDMA;
2722 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2723 		break;
2724 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2725 		ha->isp_type |= DT_ISP8021;
2726 		ha->device_type |= DT_ZIO_SUPPORTED;
2727 		ha->device_type |= DT_FWI2;
2728 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2729 		/* Initialize 82XX ISP flags */
2730 		qla82xx_init_flags(ha);
2731 		break;
2732 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2733 		ha->isp_type |= DT_ISP8044;
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_ISP2031:
2741 		ha->isp_type |= DT_ISP2031;
2742 		ha->device_type |= DT_ZIO_SUPPORTED;
2743 		ha->device_type |= DT_FWI2;
2744 		ha->device_type |= DT_IIDMA;
2745 		ha->device_type |= DT_T10_PI;
2746 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2747 		break;
2748 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2749 		ha->isp_type |= DT_ISP8031;
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_ISPF001:
2757 		ha->isp_type |= DT_ISPFX00;
2758 		break;
2759 	case PCI_DEVICE_ID_QLOGIC_ISP2071:
2760 		ha->isp_type |= DT_ISP2071;
2761 		ha->device_type |= DT_ZIO_SUPPORTED;
2762 		ha->device_type |= DT_FWI2;
2763 		ha->device_type |= DT_IIDMA;
2764 		ha->device_type |= DT_T10_PI;
2765 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2766 		break;
2767 	case PCI_DEVICE_ID_QLOGIC_ISP2271:
2768 		ha->isp_type |= DT_ISP2271;
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_ISP2261:
2776 		ha->isp_type |= DT_ISP2261;
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_ISP2081:
2784 	case PCI_DEVICE_ID_QLOGIC_ISP2089:
2785 		ha->isp_type |= DT_ISP2081;
2786 		ha->device_type |= DT_ZIO_SUPPORTED;
2787 		ha->device_type |= DT_FWI2;
2788 		ha->device_type |= DT_IIDMA;
2789 		ha->device_type |= DT_T10_PI;
2790 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2791 		break;
2792 	case PCI_DEVICE_ID_QLOGIC_ISP2281:
2793 	case PCI_DEVICE_ID_QLOGIC_ISP2289:
2794 		ha->isp_type |= DT_ISP2281;
2795 		ha->device_type |= DT_ZIO_SUPPORTED;
2796 		ha->device_type |= DT_FWI2;
2797 		ha->device_type |= DT_IIDMA;
2798 		ha->device_type |= DT_T10_PI;
2799 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2800 		break;
2801 	}
2802 
2803 	if (IS_QLA82XX(ha))
2804 		ha->port_no = ha->portnum & 1;
2805 	else {
2806 		/* Get adapter physical port no from interrupt pin register. */
2807 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2808 		if (IS_QLA25XX(ha) || IS_QLA2031(ha) ||
2809 		    IS_QLA27XX(ha) || IS_QLA28XX(ha))
2810 			ha->port_no--;
2811 		else
2812 			ha->port_no = !(ha->port_no & 1);
2813 	}
2814 
2815 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2816 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2817 	    ha->device_type, ha->port_no, ha->fw_srisc_address);
2818 }
2819 
2820 static void
2821 qla2xxx_scan_start(struct Scsi_Host *shost)
2822 {
2823 	scsi_qla_host_t *vha = shost_priv(shost);
2824 
2825 	if (vha->hw->flags.running_gold_fw)
2826 		return;
2827 
2828 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2829 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2830 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2831 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2832 }
2833 
2834 static int
2835 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2836 {
2837 	scsi_qla_host_t *vha = shost_priv(shost);
2838 
2839 	if (test_bit(UNLOADING, &vha->dpc_flags))
2840 		return 1;
2841 	if (!vha->host)
2842 		return 1;
2843 	if (time > vha->hw->loop_reset_delay * HZ)
2844 		return 1;
2845 
2846 	return atomic_read(&vha->loop_state) == LOOP_READY;
2847 }
2848 
2849 static void qla_heartbeat_work_fn(struct work_struct *work)
2850 {
2851 	struct qla_hw_data *ha = container_of(work,
2852 		struct qla_hw_data, heartbeat_work);
2853 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2854 
2855 	if (!ha->flags.mbox_busy && base_vha->flags.init_done)
2856 		qla_no_op_mb(base_vha);
2857 }
2858 
2859 static void qla2x00_iocb_work_fn(struct work_struct *work)
2860 {
2861 	struct scsi_qla_host *vha = container_of(work,
2862 		struct scsi_qla_host, iocb_work);
2863 	struct qla_hw_data *ha = vha->hw;
2864 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2865 	int i = 2;
2866 	unsigned long flags;
2867 
2868 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
2869 		return;
2870 
2871 	while (!list_empty(&vha->work_list) && i > 0) {
2872 		qla2x00_do_work(vha);
2873 		i--;
2874 	}
2875 
2876 	spin_lock_irqsave(&vha->work_lock, flags);
2877 	clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
2878 	spin_unlock_irqrestore(&vha->work_lock, flags);
2879 }
2880 
2881 static void
2882 qla_trace_init(void)
2883 {
2884 	qla_trc_array = trace_array_get_by_name("qla2xxx", NULL);
2885 	if (!qla_trc_array) {
2886 		ql_log(ql_log_fatal, NULL, 0x0001,
2887 		       "Unable to create qla2xxx trace instance, instance logging will be disabled.\n");
2888 		return;
2889 	}
2890 
2891 	QLA_TRACE_ENABLE(qla_trc_array);
2892 }
2893 
2894 static void
2895 qla_trace_uninit(void)
2896 {
2897 	if (!qla_trc_array)
2898 		return;
2899 	trace_array_put(qla_trc_array);
2900 }
2901 
2902 /*
2903  * PCI driver interface
2904  */
2905 static int
2906 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2907 {
2908 	int	ret = -ENODEV;
2909 	struct Scsi_Host *host;
2910 	scsi_qla_host_t *base_vha = NULL;
2911 	struct qla_hw_data *ha;
2912 	char pci_info[30];
2913 	char fw_str[30], wq_name[30];
2914 	struct scsi_host_template *sht;
2915 	int bars, mem_only = 0;
2916 	uint16_t req_length = 0, rsp_length = 0;
2917 	struct req_que *req = NULL;
2918 	struct rsp_que *rsp = NULL;
2919 	int i;
2920 
2921 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2922 	sht = &qla2xxx_driver_template;
2923 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2924 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2925 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2926 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2927 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2928 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2929 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2930 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2931 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2932 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2933 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2934 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
2935 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
2936 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
2937 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261 ||
2938 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2081 ||
2939 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2281 ||
2940 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2089 ||
2941 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2289) {
2942 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2943 		mem_only = 1;
2944 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2945 		    "Mem only adapter.\n");
2946 	}
2947 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2948 	    "Bars=%d.\n", bars);
2949 
2950 	if (mem_only) {
2951 		if (pci_enable_device_mem(pdev))
2952 			return ret;
2953 	} else {
2954 		if (pci_enable_device(pdev))
2955 			return ret;
2956 	}
2957 
2958 	if (is_kdump_kernel()) {
2959 		ql2xmqsupport = 0;
2960 		ql2xallocfwdump = 0;
2961 	}
2962 
2963 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2964 	if (!ha) {
2965 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2966 		    "Unable to allocate memory for ha.\n");
2967 		goto disable_device;
2968 	}
2969 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2970 	    "Memory allocated for ha=%p.\n", ha);
2971 	ha->pdev = pdev;
2972 	INIT_LIST_HEAD(&ha->tgt.q_full_list);
2973 	spin_lock_init(&ha->tgt.q_full_lock);
2974 	spin_lock_init(&ha->tgt.sess_lock);
2975 	spin_lock_init(&ha->tgt.atio_lock);
2976 
2977 	spin_lock_init(&ha->sadb_lock);
2978 	INIT_LIST_HEAD(&ha->sadb_tx_index_list);
2979 	INIT_LIST_HEAD(&ha->sadb_rx_index_list);
2980 
2981 	spin_lock_init(&ha->sadb_fp_lock);
2982 
2983 	if (qla_edif_sadb_build_free_pool(ha)) {
2984 		kfree(ha);
2985 		goto  disable_device;
2986 	}
2987 
2988 	atomic_set(&ha->nvme_active_aen_cnt, 0);
2989 
2990 	/* Clear our data area */
2991 	ha->bars = bars;
2992 	ha->mem_only = mem_only;
2993 	spin_lock_init(&ha->hardware_lock);
2994 	spin_lock_init(&ha->vport_slock);
2995 	mutex_init(&ha->selflogin_lock);
2996 	mutex_init(&ha->optrom_mutex);
2997 
2998 	/* Set ISP-type information. */
2999 	qla2x00_set_isp_flags(ha);
3000 
3001 	/* Set EEH reset type to fundamental if required by hba */
3002 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
3003 	    IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3004 		pdev->needs_freset = 1;
3005 
3006 	ha->prev_topology = 0;
3007 	ha->init_cb_size = sizeof(init_cb_t);
3008 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
3009 	ha->optrom_size = OPTROM_SIZE_2300;
3010 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
3011 	atomic_set(&ha->num_pend_mbx_stage1, 0);
3012 	atomic_set(&ha->num_pend_mbx_stage2, 0);
3013 	atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
3014 	ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
3015 	INIT_LIST_HEAD(&ha->tmf_pending);
3016 	INIT_LIST_HEAD(&ha->tmf_active);
3017 
3018 	/* Assign ISP specific operations. */
3019 	if (IS_QLA2100(ha)) {
3020 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
3021 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
3022 		req_length = REQUEST_ENTRY_CNT_2100;
3023 		rsp_length = RESPONSE_ENTRY_CNT_2100;
3024 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
3025 		ha->gid_list_info_size = 4;
3026 		ha->flash_conf_off = ~0;
3027 		ha->flash_data_off = ~0;
3028 		ha->nvram_conf_off = ~0;
3029 		ha->nvram_data_off = ~0;
3030 		ha->isp_ops = &qla2100_isp_ops;
3031 	} else if (IS_QLA2200(ha)) {
3032 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
3033 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
3034 		req_length = REQUEST_ENTRY_CNT_2200;
3035 		rsp_length = RESPONSE_ENTRY_CNT_2100;
3036 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
3037 		ha->gid_list_info_size = 4;
3038 		ha->flash_conf_off = ~0;
3039 		ha->flash_data_off = ~0;
3040 		ha->nvram_conf_off = ~0;
3041 		ha->nvram_data_off = ~0;
3042 		ha->isp_ops = &qla2100_isp_ops;
3043 	} else if (IS_QLA23XX(ha)) {
3044 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
3045 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3046 		req_length = REQUEST_ENTRY_CNT_2200;
3047 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3048 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3049 		ha->gid_list_info_size = 6;
3050 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
3051 			ha->optrom_size = OPTROM_SIZE_2322;
3052 		ha->flash_conf_off = ~0;
3053 		ha->flash_data_off = ~0;
3054 		ha->nvram_conf_off = ~0;
3055 		ha->nvram_data_off = ~0;
3056 		ha->isp_ops = &qla2300_isp_ops;
3057 	} else if (IS_QLA24XX_TYPE(ha)) {
3058 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3059 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3060 		req_length = REQUEST_ENTRY_CNT_24XX;
3061 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3062 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3063 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3064 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3065 		ha->gid_list_info_size = 8;
3066 		ha->optrom_size = OPTROM_SIZE_24XX;
3067 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
3068 		ha->isp_ops = &qla24xx_isp_ops;
3069 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3070 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3071 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3072 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3073 	} else if (IS_QLA25XX(ha)) {
3074 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3075 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3076 		req_length = REQUEST_ENTRY_CNT_24XX;
3077 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3078 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3079 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3080 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
3081 		ha->gid_list_info_size = 8;
3082 		ha->optrom_size = OPTROM_SIZE_25XX;
3083 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3084 		ha->isp_ops = &qla25xx_isp_ops;
3085 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3086 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3087 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3088 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3089 	} else if (IS_QLA81XX(ha)) {
3090 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3091 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3092 		req_length = REQUEST_ENTRY_CNT_24XX;
3093 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3094 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3095 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3096 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3097 		ha->gid_list_info_size = 8;
3098 		ha->optrom_size = OPTROM_SIZE_81XX;
3099 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3100 		ha->isp_ops = &qla81xx_isp_ops;
3101 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3102 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3103 		ha->nvram_conf_off = ~0;
3104 		ha->nvram_data_off = ~0;
3105 	} else if (IS_QLA82XX(ha)) {
3106 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3107 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3108 		req_length = REQUEST_ENTRY_CNT_82XX;
3109 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3110 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3111 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3112 		ha->gid_list_info_size = 8;
3113 		ha->optrom_size = OPTROM_SIZE_82XX;
3114 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3115 		ha->isp_ops = &qla82xx_isp_ops;
3116 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3117 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3118 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3119 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3120 	} else if (IS_QLA8044(ha)) {
3121 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3122 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3123 		req_length = REQUEST_ENTRY_CNT_82XX;
3124 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
3125 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3126 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3127 		ha->gid_list_info_size = 8;
3128 		ha->optrom_size = OPTROM_SIZE_83XX;
3129 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3130 		ha->isp_ops = &qla8044_isp_ops;
3131 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
3132 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
3133 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
3134 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
3135 	} else if (IS_QLA83XX(ha)) {
3136 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3137 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3138 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3139 		req_length = REQUEST_ENTRY_CNT_83XX;
3140 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3141 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3142 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3143 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3144 		ha->gid_list_info_size = 8;
3145 		ha->optrom_size = OPTROM_SIZE_83XX;
3146 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3147 		ha->isp_ops = &qla83xx_isp_ops;
3148 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3149 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3150 		ha->nvram_conf_off = ~0;
3151 		ha->nvram_data_off = ~0;
3152 	}  else if (IS_QLAFX00(ha)) {
3153 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
3154 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
3155 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
3156 		req_length = REQUEST_ENTRY_CNT_FX00;
3157 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
3158 		ha->isp_ops = &qlafx00_isp_ops;
3159 		ha->port_down_retry_count = 30; /* default value */
3160 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
3161 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
3162 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
3163 		ha->mr.fw_hbt_en = 1;
3164 		ha->mr.host_info_resend = false;
3165 		ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
3166 	} else if (IS_QLA27XX(ha)) {
3167 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3168 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3169 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3170 		req_length = REQUEST_ENTRY_CNT_83XX;
3171 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3172 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3173 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3174 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3175 		ha->gid_list_info_size = 8;
3176 		ha->optrom_size = OPTROM_SIZE_83XX;
3177 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3178 		ha->isp_ops = &qla27xx_isp_ops;
3179 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3180 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3181 		ha->nvram_conf_off = ~0;
3182 		ha->nvram_data_off = ~0;
3183 	} else if (IS_QLA28XX(ha)) {
3184 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3185 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3186 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3187 		req_length = REQUEST_ENTRY_CNT_83XX;
3188 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3189 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3190 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3191 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3192 		ha->gid_list_info_size = 8;
3193 		ha->optrom_size = OPTROM_SIZE_28XX;
3194 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3195 		ha->isp_ops = &qla27xx_isp_ops;
3196 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_28XX;
3197 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_28XX;
3198 		ha->nvram_conf_off = ~0;
3199 		ha->nvram_data_off = ~0;
3200 	}
3201 
3202 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
3203 	    "mbx_count=%d, req_length=%d, "
3204 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
3205 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
3206 	    "max_fibre_devices=%d.\n",
3207 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
3208 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
3209 	    ha->nvram_npiv_size, ha->max_fibre_devices);
3210 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
3211 	    "isp_ops=%p, flash_conf_off=%d, "
3212 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
3213 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
3214 	    ha->nvram_conf_off, ha->nvram_data_off);
3215 
3216 	/* Configure PCI I/O space */
3217 	ret = ha->isp_ops->iospace_config(ha);
3218 	if (ret)
3219 		goto iospace_config_failed;
3220 
3221 	ql_log_pci(ql_log_info, pdev, 0x001d,
3222 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
3223 	    pdev->device, pdev->irq, ha->iobase);
3224 	mutex_init(&ha->vport_lock);
3225 	mutex_init(&ha->mq_lock);
3226 	init_completion(&ha->mbx_cmd_comp);
3227 	complete(&ha->mbx_cmd_comp);
3228 	init_completion(&ha->mbx_intr_comp);
3229 	init_completion(&ha->dcbx_comp);
3230 	init_completion(&ha->lb_portup_comp);
3231 
3232 	set_bit(0, (unsigned long *) ha->vp_idx_map);
3233 
3234 	qla2x00_config_dma_addressing(ha);
3235 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
3236 	    "64 Bit addressing is %s.\n",
3237 	    ha->flags.enable_64bit_addressing ? "enable" :
3238 	    "disable");
3239 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
3240 	if (ret) {
3241 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
3242 		    "Failed to allocate memory for adapter, aborting.\n");
3243 
3244 		goto probe_hw_failed;
3245 	}
3246 
3247 	req->max_q_depth = MAX_Q_DEPTH;
3248 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
3249 		req->max_q_depth = ql2xmaxqdepth;
3250 
3251 
3252 	base_vha = qla2x00_create_host(sht, ha);
3253 	if (!base_vha) {
3254 		ret = -ENOMEM;
3255 		goto probe_hw_failed;
3256 	}
3257 
3258 	pci_set_drvdata(pdev, base_vha);
3259 	set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3260 
3261 	host = base_vha->host;
3262 	base_vha->req = req;
3263 	if (IS_QLA2XXX_MIDTYPE(ha))
3264 		base_vha->mgmt_svr_loop_id =
3265 			qla2x00_reserve_mgmt_server_loop_id(base_vha);
3266 	else
3267 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
3268 						base_vha->vp_idx;
3269 
3270 	/* Setup fcport template structure. */
3271 	ha->mr.fcport.vha = base_vha;
3272 	ha->mr.fcport.port_type = FCT_UNKNOWN;
3273 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
3274 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
3275 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
3276 	ha->mr.fcport.scan_state = 1;
3277 
3278 	qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
3279 			    QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
3280 			    QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
3281 
3282 	/* Set the SG table size based on ISP type */
3283 	if (!IS_FWI2_CAPABLE(ha)) {
3284 		if (IS_QLA2100(ha))
3285 			host->sg_tablesize = 32;
3286 	} else {
3287 		if (!IS_QLA82XX(ha))
3288 			host->sg_tablesize = QLA_SG_ALL;
3289 	}
3290 	host->max_id = ha->max_fibre_devices;
3291 	host->cmd_per_lun = 3;
3292 	host->unique_id = host->host_no;
3293 
3294 	if (ql2xenabledif && ql2xenabledif != 2) {
3295 		ql_log(ql_log_warn, base_vha, 0x302d,
3296 		       "Invalid value for ql2xenabledif, resetting it to default (2)\n");
3297 		ql2xenabledif = 2;
3298 	}
3299 
3300 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
3301 		host->max_cmd_len = 32;
3302 	else
3303 		host->max_cmd_len = MAX_CMDSZ;
3304 	host->max_channel = MAX_BUSES - 1;
3305 	/* Older HBAs support only 16-bit LUNs */
3306 	if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
3307 	    ql2xmaxlun > 0xffff)
3308 		host->max_lun = 0xffff;
3309 	else
3310 		host->max_lun = ql2xmaxlun;
3311 	host->transportt = qla2xxx_transport_template;
3312 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
3313 
3314 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
3315 	    "max_id=%d this_id=%d "
3316 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
3317 	    "max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
3318 	    host->this_id, host->cmd_per_lun, host->unique_id,
3319 	    host->max_cmd_len, host->max_channel, host->max_lun,
3320 	    host->transportt, sht->vendor_id);
3321 
3322 	INIT_WORK(&ha->heartbeat_work, qla_heartbeat_work_fn);
3323 
3324 	/* Set up the irqs */
3325 	ret = qla2x00_request_irqs(ha, rsp);
3326 	if (ret)
3327 		goto probe_failed;
3328 
3329 	/* Alloc arrays of request and response ring ptrs */
3330 	ret = qla2x00_alloc_queues(ha, req, rsp);
3331 	if (ret) {
3332 		ql_log(ql_log_fatal, base_vha, 0x003d,
3333 		    "Failed to allocate memory for queue pointers..."
3334 		    "aborting.\n");
3335 		ret = -ENODEV;
3336 		goto probe_failed;
3337 	}
3338 
3339 	if (ha->mqenable) {
3340 		/* number of hardware queues supported by blk/scsi-mq*/
3341 		host->nr_hw_queues = ha->max_qpairs;
3342 
3343 		ql_dbg(ql_dbg_init, base_vha, 0x0192,
3344 			"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
3345 	} else {
3346 		if (ql2xnvmeenable) {
3347 			host->nr_hw_queues = ha->max_qpairs;
3348 			ql_dbg(ql_dbg_init, base_vha, 0x0194,
3349 			    "FC-NVMe support is enabled, HW queues=%d\n",
3350 			    host->nr_hw_queues);
3351 		} else {
3352 			ql_dbg(ql_dbg_init, base_vha, 0x0193,
3353 			    "blk/scsi-mq disabled.\n");
3354 		}
3355 	}
3356 
3357 	qlt_probe_one_stage1(base_vha, ha);
3358 
3359 	pci_save_state(pdev);
3360 
3361 	/* Assign back pointers */
3362 	rsp->req = req;
3363 	req->rsp = rsp;
3364 
3365 	if (IS_QLAFX00(ha)) {
3366 		ha->rsp_q_map[0] = rsp;
3367 		ha->req_q_map[0] = req;
3368 		set_bit(0, ha->req_qid_map);
3369 		set_bit(0, ha->rsp_qid_map);
3370 	}
3371 
3372 	/* FWI2-capable only. */
3373 	req->req_q_in = &ha->iobase->isp24.req_q_in;
3374 	req->req_q_out = &ha->iobase->isp24.req_q_out;
3375 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
3376 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
3377 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3378 	    IS_QLA28XX(ha)) {
3379 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
3380 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
3381 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
3382 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
3383 	}
3384 
3385 	if (IS_QLAFX00(ha)) {
3386 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
3387 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
3388 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
3389 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
3390 	}
3391 
3392 	if (IS_P3P_TYPE(ha)) {
3393 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
3394 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
3395 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
3396 	}
3397 
3398 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
3399 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3400 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3401 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
3402 	    "req->req_q_in=%p req->req_q_out=%p "
3403 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3404 	    req->req_q_in, req->req_q_out,
3405 	    rsp->rsp_q_in, rsp->rsp_q_out);
3406 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
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_init, base_vha, 0x003f,
3410 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3411 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
3412 
3413 	ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
3414 	if (unlikely(!ha->wq)) {
3415 		ret = -ENOMEM;
3416 		goto probe_failed;
3417 	}
3418 
3419 	if (ha->isp_ops->initialize_adapter(base_vha)) {
3420 		ql_log(ql_log_fatal, base_vha, 0x00d6,
3421 		    "Failed to initialize adapter - Adapter flags %x.\n",
3422 		    base_vha->device_flags);
3423 
3424 		if (IS_QLA82XX(ha)) {
3425 			qla82xx_idc_lock(ha);
3426 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3427 				QLA8XXX_DEV_FAILED);
3428 			qla82xx_idc_unlock(ha);
3429 			ql_log(ql_log_fatal, base_vha, 0x00d7,
3430 			    "HW State: FAILED.\n");
3431 		} else if (IS_QLA8044(ha)) {
3432 			qla8044_idc_lock(ha);
3433 			qla8044_wr_direct(base_vha,
3434 				QLA8044_CRB_DEV_STATE_INDEX,
3435 				QLA8XXX_DEV_FAILED);
3436 			qla8044_idc_unlock(ha);
3437 			ql_log(ql_log_fatal, base_vha, 0x0150,
3438 			    "HW State: FAILED.\n");
3439 		}
3440 
3441 		ret = -ENODEV;
3442 		goto probe_failed;
3443 	}
3444 
3445 	if (IS_QLAFX00(ha))
3446 		host->can_queue = QLAFX00_MAX_CANQUEUE;
3447 	else
3448 		host->can_queue = req->num_outstanding_cmds - 10;
3449 
3450 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
3451 	    "can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
3452 	    host->can_queue, base_vha->req,
3453 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
3454 
3455 	/* Check if FW supports MQ or not for ISP25xx */
3456 	if (IS_QLA25XX(ha) && !(ha->fw_attributes & BIT_6))
3457 		ha->mqenable = 0;
3458 
3459 	if (ha->mqenable) {
3460 		bool startit = false;
3461 
3462 		if (QLA_TGT_MODE_ENABLED())
3463 			startit = false;
3464 
3465 		if (ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED)
3466 			startit = true;
3467 
3468 		/* Create start of day qpairs for Block MQ */
3469 		for (i = 0; i < ha->max_qpairs; i++)
3470 			qla2xxx_create_qpair(base_vha, 5, 0, startit);
3471 	}
3472 	qla_init_iocb_limit(base_vha);
3473 
3474 	if (ha->flags.running_gold_fw)
3475 		goto skip_dpc;
3476 
3477 	/*
3478 	 * Startup the kernel thread for this host adapter
3479 	 */
3480 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
3481 	    "%s_dpc", base_vha->host_str);
3482 	if (IS_ERR(ha->dpc_thread)) {
3483 		ql_log(ql_log_fatal, base_vha, 0x00ed,
3484 		    "Failed to start DPC thread.\n");
3485 		ret = PTR_ERR(ha->dpc_thread);
3486 		ha->dpc_thread = NULL;
3487 		goto probe_failed;
3488 	}
3489 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
3490 	    "DPC thread started successfully.\n");
3491 
3492 	/*
3493 	 * If we're not coming up in initiator mode, we might sit for
3494 	 * a while without waking up the dpc thread, which leads to a
3495 	 * stuck process warning.  So just kick the dpc once here and
3496 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
3497 	 */
3498 	qla2xxx_wake_dpc(base_vha);
3499 
3500 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
3501 
3502 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
3503 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
3504 		ha->dpc_lp_wq =
3505 			alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, wq_name);
3506 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
3507 
3508 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
3509 		ha->dpc_hp_wq =
3510 			alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, wq_name);
3511 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
3512 		INIT_WORK(&ha->idc_state_handler,
3513 		    qla83xx_idc_state_handler_work);
3514 		INIT_WORK(&ha->nic_core_unrecoverable,
3515 		    qla83xx_nic_core_unrecoverable_work);
3516 	}
3517 
3518 skip_dpc:
3519 	list_add_tail(&base_vha->list, &ha->vp_list);
3520 	base_vha->host->irq = ha->pdev->irq;
3521 
3522 	/* Initialized the timer */
3523 	qla2x00_start_timer(base_vha, WATCH_INTERVAL);
3524 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
3525 	    "Started qla2x00_timer with "
3526 	    "interval=%d.\n", WATCH_INTERVAL);
3527 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
3528 	    "Detected hba at address=%p.\n",
3529 	    ha);
3530 
3531 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
3532 		if (ha->fw_attributes & BIT_4) {
3533 			int prot = 0, guard;
3534 
3535 			base_vha->flags.difdix_supported = 1;
3536 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
3537 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3538 			if (ql2xprotmask)
3539 				scsi_host_set_prot(host, ql2xprotmask);
3540 			else
3541 				scsi_host_set_prot(host,
3542 				    prot | SHOST_DIF_TYPE1_PROTECTION
3543 				    | SHOST_DIF_TYPE2_PROTECTION
3544 				    | SHOST_DIF_TYPE3_PROTECTION
3545 				    | SHOST_DIX_TYPE1_PROTECTION
3546 				    | SHOST_DIX_TYPE2_PROTECTION
3547 				    | SHOST_DIX_TYPE3_PROTECTION);
3548 
3549 			guard = SHOST_DIX_GUARD_CRC;
3550 
3551 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
3552 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
3553 				guard |= SHOST_DIX_GUARD_IP;
3554 
3555 			if (ql2xprotguard)
3556 				scsi_host_set_guard(host, ql2xprotguard);
3557 			else
3558 				scsi_host_set_guard(host, guard);
3559 		} else
3560 			base_vha->flags.difdix_supported = 0;
3561 	}
3562 
3563 	ha->isp_ops->enable_intrs(ha);
3564 
3565 	if (IS_QLAFX00(ha)) {
3566 		ret = qlafx00_fx_disc(base_vha,
3567 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
3568 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
3569 		    QLA_SG_ALL : 128;
3570 	}
3571 
3572 	if (IS_T10_PI_CAPABLE(base_vha->hw))
3573 		host->dma_alignment = 0x7;
3574 
3575 	ret = scsi_add_host(host, &pdev->dev);
3576 	if (ret)
3577 		goto probe_failed;
3578 
3579 	base_vha->flags.init_done = 1;
3580 	base_vha->flags.online = 1;
3581 	ha->prev_minidump_failed = 0;
3582 
3583 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
3584 	    "Init done and hba is online.\n");
3585 
3586 	if (qla_ini_mode_enabled(base_vha) ||
3587 		qla_dual_mode_enabled(base_vha))
3588 		scsi_scan_host(host);
3589 	else
3590 		ql_log(ql_log_info, base_vha, 0x0122,
3591 			"skipping scsi_scan_host() for non-initiator port\n");
3592 
3593 	qla2x00_alloc_sysfs_attr(base_vha);
3594 
3595 	if (IS_QLAFX00(ha)) {
3596 		ret = qlafx00_fx_disc(base_vha,
3597 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
3598 
3599 		/* Register system information */
3600 		ret =  qlafx00_fx_disc(base_vha,
3601 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
3602 	}
3603 
3604 	qla2x00_init_host_attr(base_vha);
3605 
3606 	qla2x00_dfs_setup(base_vha);
3607 
3608 	ql_log(ql_log_info, base_vha, 0x00fb,
3609 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
3610 	ql_log(ql_log_info, base_vha, 0x00fc,
3611 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
3612 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info,
3613 						       sizeof(pci_info)),
3614 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
3615 	    base_vha->host_no,
3616 	    ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
3617 
3618 	qlt_add_target(ha, base_vha);
3619 
3620 	clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3621 
3622 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3623 		return -ENODEV;
3624 
3625 	return 0;
3626 
3627 probe_failed:
3628 	qla_enode_stop(base_vha);
3629 	qla_edb_stop(base_vha);
3630 	vfree(base_vha->scan.l);
3631 	if (base_vha->gnl.l) {
3632 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3633 				base_vha->gnl.l, base_vha->gnl.ldma);
3634 		base_vha->gnl.l = NULL;
3635 	}
3636 
3637 	if (base_vha->timer_active)
3638 		qla2x00_stop_timer(base_vha);
3639 	base_vha->flags.online = 0;
3640 	if (ha->dpc_thread) {
3641 		struct task_struct *t = ha->dpc_thread;
3642 
3643 		ha->dpc_thread = NULL;
3644 		kthread_stop(t);
3645 	}
3646 
3647 	qla2x00_free_device(base_vha);
3648 	scsi_host_put(base_vha->host);
3649 	/*
3650 	 * Need to NULL out local req/rsp after
3651 	 * qla2x00_free_device => qla2x00_free_queues frees
3652 	 * what these are pointing to. Or else we'll
3653 	 * fall over below in qla2x00_free_req/rsp_que.
3654 	 */
3655 	req = NULL;
3656 	rsp = NULL;
3657 
3658 probe_hw_failed:
3659 	qla2x00_mem_free(ha);
3660 	qla2x00_free_req_que(ha, req);
3661 	qla2x00_free_rsp_que(ha, rsp);
3662 	qla2x00_clear_drv_active(ha);
3663 
3664 iospace_config_failed:
3665 	if (IS_P3P_TYPE(ha)) {
3666 		if (!ha->nx_pcibase)
3667 			iounmap((device_reg_t *)ha->nx_pcibase);
3668 		if (!ql2xdbwr)
3669 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3670 	} else {
3671 		if (ha->iobase)
3672 			iounmap(ha->iobase);
3673 		if (ha->cregbase)
3674 			iounmap(ha->cregbase);
3675 	}
3676 	pci_release_selected_regions(ha->pdev, ha->bars);
3677 	kfree(ha);
3678 
3679 disable_device:
3680 	pci_disable_device(pdev);
3681 	return ret;
3682 }
3683 
3684 static void __qla_set_remove_flag(scsi_qla_host_t *base_vha)
3685 {
3686 	scsi_qla_host_t *vp;
3687 	unsigned long flags;
3688 	struct qla_hw_data *ha;
3689 
3690 	if (!base_vha)
3691 		return;
3692 
3693 	ha = base_vha->hw;
3694 
3695 	spin_lock_irqsave(&ha->vport_slock, flags);
3696 	list_for_each_entry(vp, &ha->vp_list, list)
3697 		set_bit(PFLG_DRIVER_REMOVING, &vp->pci_flags);
3698 
3699 	/*
3700 	 * Indicate device removal to prevent future board_disable
3701 	 * and wait until any pending board_disable has completed.
3702 	 */
3703 	set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
3704 	spin_unlock_irqrestore(&ha->vport_slock, flags);
3705 }
3706 
3707 static void
3708 qla2x00_shutdown(struct pci_dev *pdev)
3709 {
3710 	scsi_qla_host_t *vha;
3711 	struct qla_hw_data  *ha;
3712 
3713 	vha = pci_get_drvdata(pdev);
3714 	ha = vha->hw;
3715 
3716 	ql_log(ql_log_info, vha, 0xfffa,
3717 		"Adapter shutdown\n");
3718 
3719 	/*
3720 	 * Prevent future board_disable and wait
3721 	 * until any pending board_disable has completed.
3722 	 */
3723 	__qla_set_remove_flag(vha);
3724 	cancel_work_sync(&ha->board_disable);
3725 
3726 	if (!atomic_read(&pdev->enable_cnt))
3727 		return;
3728 
3729 	/* Notify ISPFX00 firmware */
3730 	if (IS_QLAFX00(ha))
3731 		qlafx00_driver_shutdown(vha, 20);
3732 
3733 	/* Turn-off FCE trace */
3734 	if (ha->flags.fce_enabled) {
3735 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3736 		ha->flags.fce_enabled = 0;
3737 	}
3738 
3739 	/* Turn-off EFT trace */
3740 	if (ha->eft)
3741 		qla2x00_disable_eft_trace(vha);
3742 
3743 	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3744 	    IS_QLA28XX(ha)) {
3745 		if (ha->flags.fw_started)
3746 			qla2x00_abort_isp_cleanup(vha);
3747 	} else {
3748 		/* Stop currently executing firmware. */
3749 		qla2x00_try_to_stop_firmware(vha);
3750 	}
3751 
3752 	/* Disable timer */
3753 	if (vha->timer_active)
3754 		qla2x00_stop_timer(vha);
3755 
3756 	/* Turn adapter off line */
3757 	vha->flags.online = 0;
3758 
3759 	/* turn-off interrupts on the card */
3760 	if (ha->interrupts_on) {
3761 		vha->flags.init_done = 0;
3762 		ha->isp_ops->disable_intrs(ha);
3763 	}
3764 
3765 	qla2x00_free_irqs(vha);
3766 
3767 	qla2x00_free_fw_dump(ha);
3768 
3769 	pci_disable_device(pdev);
3770 	ql_log(ql_log_info, vha, 0xfffe,
3771 		"Adapter shutdown successfully.\n");
3772 }
3773 
3774 /* Deletes all the virtual ports for a given ha */
3775 static void
3776 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
3777 {
3778 	scsi_qla_host_t *vha;
3779 	unsigned long flags;
3780 
3781 	mutex_lock(&ha->vport_lock);
3782 	while (ha->cur_vport_count) {
3783 		spin_lock_irqsave(&ha->vport_slock, flags);
3784 
3785 		BUG_ON(base_vha->list.next == &ha->vp_list);
3786 		/* This assumes first entry in ha->vp_list is always base vha */
3787 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3788 		scsi_host_get(vha->host);
3789 
3790 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3791 		mutex_unlock(&ha->vport_lock);
3792 
3793 		qla_nvme_delete(vha);
3794 
3795 		fc_vport_terminate(vha->fc_vport);
3796 		scsi_host_put(vha->host);
3797 
3798 		mutex_lock(&ha->vport_lock);
3799 	}
3800 	mutex_unlock(&ha->vport_lock);
3801 }
3802 
3803 /* Stops all deferred work threads */
3804 static void
3805 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
3806 {
3807 	/* Cancel all work and destroy DPC workqueues */
3808 	if (ha->dpc_lp_wq) {
3809 		cancel_work_sync(&ha->idc_aen);
3810 		destroy_workqueue(ha->dpc_lp_wq);
3811 		ha->dpc_lp_wq = NULL;
3812 	}
3813 
3814 	if (ha->dpc_hp_wq) {
3815 		cancel_work_sync(&ha->nic_core_reset);
3816 		cancel_work_sync(&ha->idc_state_handler);
3817 		cancel_work_sync(&ha->nic_core_unrecoverable);
3818 		destroy_workqueue(ha->dpc_hp_wq);
3819 		ha->dpc_hp_wq = NULL;
3820 	}
3821 
3822 	/* Kill the kernel thread for this host */
3823 	if (ha->dpc_thread) {
3824 		struct task_struct *t = ha->dpc_thread;
3825 
3826 		/*
3827 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3828 		 * so we need to zero it out.
3829 		 */
3830 		ha->dpc_thread = NULL;
3831 		kthread_stop(t);
3832 	}
3833 }
3834 
3835 static void
3836 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3837 {
3838 	if (IS_QLA82XX(ha)) {
3839 
3840 		iounmap((device_reg_t *)ha->nx_pcibase);
3841 		if (!ql2xdbwr)
3842 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3843 	} else {
3844 		if (ha->iobase)
3845 			iounmap(ha->iobase);
3846 
3847 		if (ha->cregbase)
3848 			iounmap(ha->cregbase);
3849 
3850 		if (ha->mqiobase)
3851 			iounmap(ha->mqiobase);
3852 
3853 		if (ha->msixbase)
3854 			iounmap(ha->msixbase);
3855 	}
3856 }
3857 
3858 static void
3859 qla2x00_clear_drv_active(struct qla_hw_data *ha)
3860 {
3861 	if (IS_QLA8044(ha)) {
3862 		qla8044_idc_lock(ha);
3863 		qla8044_clear_drv_active(ha);
3864 		qla8044_idc_unlock(ha);
3865 	} else if (IS_QLA82XX(ha)) {
3866 		qla82xx_idc_lock(ha);
3867 		qla82xx_clear_drv_active(ha);
3868 		qla82xx_idc_unlock(ha);
3869 	}
3870 }
3871 
3872 static void
3873 qla2x00_remove_one(struct pci_dev *pdev)
3874 {
3875 	scsi_qla_host_t *base_vha;
3876 	struct qla_hw_data  *ha;
3877 
3878 	base_vha = pci_get_drvdata(pdev);
3879 	ha = base_vha->hw;
3880 	ql_log(ql_log_info, base_vha, 0xb079,
3881 	    "Removing driver\n");
3882 	__qla_set_remove_flag(base_vha);
3883 	cancel_work_sync(&ha->board_disable);
3884 
3885 	/*
3886 	 * If the PCI device is disabled then there was a PCI-disconnect and
3887 	 * qla2x00_disable_board_on_pci_error has taken care of most of the
3888 	 * resources.
3889 	 */
3890 	if (!atomic_read(&pdev->enable_cnt)) {
3891 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3892 		    base_vha->gnl.l, base_vha->gnl.ldma);
3893 		base_vha->gnl.l = NULL;
3894 		scsi_host_put(base_vha->host);
3895 		kfree(ha);
3896 		pci_set_drvdata(pdev, NULL);
3897 		return;
3898 	}
3899 	qla2x00_wait_for_hba_ready(base_vha);
3900 
3901 	/*
3902 	 * if UNLOADING flag is already set, then continue unload,
3903 	 * where it was set first.
3904 	 */
3905 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
3906 		return;
3907 
3908 	if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3909 	    IS_QLA28XX(ha)) {
3910 		if (ha->flags.fw_started)
3911 			qla2x00_abort_isp_cleanup(base_vha);
3912 	} else if (!IS_QLAFX00(ha)) {
3913 		if (IS_QLA8031(ha)) {
3914 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3915 			    "Clearing fcoe driver presence.\n");
3916 			if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3917 				ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3918 				    "Error while clearing DRV-Presence.\n");
3919 		}
3920 
3921 		qla2x00_try_to_stop_firmware(base_vha);
3922 	}
3923 
3924 	qla2x00_wait_for_sess_deletion(base_vha);
3925 
3926 	qla_nvme_delete(base_vha);
3927 
3928 	dma_free_coherent(&ha->pdev->dev,
3929 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
3930 
3931 	base_vha->gnl.l = NULL;
3932 	qla_enode_stop(base_vha);
3933 	qla_edb_stop(base_vha);
3934 
3935 	vfree(base_vha->scan.l);
3936 
3937 	if (IS_QLAFX00(ha))
3938 		qlafx00_driver_shutdown(base_vha, 20);
3939 
3940 	qla2x00_delete_all_vps(ha, base_vha);
3941 
3942 	qla2x00_dfs_remove(base_vha);
3943 
3944 	qla84xx_put_chip(base_vha);
3945 
3946 	/* Disable timer */
3947 	if (base_vha->timer_active)
3948 		qla2x00_stop_timer(base_vha);
3949 
3950 	base_vha->flags.online = 0;
3951 
3952 	/* free DMA memory */
3953 	if (ha->exlogin_buf)
3954 		qla2x00_free_exlogin_buffer(ha);
3955 
3956 	/* free DMA memory */
3957 	if (ha->exchoffld_buf)
3958 		qla2x00_free_exchoffld_buffer(ha);
3959 
3960 	qla2x00_destroy_deferred_work(ha);
3961 
3962 	qlt_remove_target(ha, base_vha);
3963 
3964 	qla2x00_free_sysfs_attr(base_vha, true);
3965 
3966 	fc_remove_host(base_vha->host);
3967 
3968 	scsi_remove_host(base_vha->host);
3969 
3970 	qla2x00_free_device(base_vha);
3971 
3972 	qla2x00_clear_drv_active(ha);
3973 
3974 	scsi_host_put(base_vha->host);
3975 
3976 	qla2x00_unmap_iobases(ha);
3977 
3978 	pci_release_selected_regions(ha->pdev, ha->bars);
3979 	kfree(ha);
3980 
3981 	pci_disable_device(pdev);
3982 }
3983 
3984 static inline void
3985 qla24xx_free_purex_list(struct purex_list *list)
3986 {
3987 	struct purex_item *item, *next;
3988 	ulong flags;
3989 
3990 	spin_lock_irqsave(&list->lock, flags);
3991 	list_for_each_entry_safe(item, next, &list->head, list) {
3992 		list_del(&item->list);
3993 		if (item == &item->vha->default_item)
3994 			continue;
3995 		kfree(item);
3996 	}
3997 	spin_unlock_irqrestore(&list->lock, flags);
3998 }
3999 
4000 static void
4001 qla2x00_free_device(scsi_qla_host_t *vha)
4002 {
4003 	struct qla_hw_data *ha = vha->hw;
4004 
4005 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
4006 
4007 	/* Disable timer */
4008 	if (vha->timer_active)
4009 		qla2x00_stop_timer(vha);
4010 
4011 	qla25xx_delete_queues(vha);
4012 	vha->flags.online = 0;
4013 
4014 	/* turn-off interrupts on the card */
4015 	if (ha->interrupts_on) {
4016 		vha->flags.init_done = 0;
4017 		ha->isp_ops->disable_intrs(ha);
4018 	}
4019 
4020 	qla2x00_free_fcports(vha);
4021 
4022 	qla2x00_free_irqs(vha);
4023 
4024 	/* Flush the work queue and remove it */
4025 	if (ha->wq) {
4026 		destroy_workqueue(ha->wq);
4027 		ha->wq = NULL;
4028 	}
4029 
4030 
4031 	qla24xx_free_purex_list(&vha->purex_list);
4032 
4033 	qla2x00_mem_free(ha);
4034 
4035 	qla82xx_md_free(vha);
4036 
4037 	qla_edif_sadb_release_free_pool(ha);
4038 	qla_edif_sadb_release(ha);
4039 
4040 	qla2x00_free_queues(ha);
4041 }
4042 
4043 void qla2x00_free_fcports(struct scsi_qla_host *vha)
4044 {
4045 	fc_port_t *fcport, *tfcport;
4046 
4047 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list)
4048 		qla2x00_free_fcport(fcport);
4049 }
4050 
4051 static inline void
4052 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport)
4053 {
4054 	int now;
4055 
4056 	if (!fcport->rport)
4057 		return;
4058 
4059 	if (fcport->rport) {
4060 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2109,
4061 		    "%s %8phN. rport %p roles %x\n",
4062 		    __func__, fcport->port_name, fcport->rport,
4063 		    fcport->rport->roles);
4064 		fc_remote_port_delete(fcport->rport);
4065 	}
4066 	qlt_do_generation_tick(vha, &now);
4067 }
4068 
4069 /*
4070  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
4071  *
4072  * Input: ha = adapter block pointer.  fcport = port structure pointer.
4073  *
4074  * Return: None.
4075  *
4076  * Context:
4077  */
4078 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
4079     int do_login)
4080 {
4081 	if (IS_QLAFX00(vha->hw)) {
4082 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4083 		qla2x00_schedule_rport_del(vha, fcport);
4084 		return;
4085 	}
4086 
4087 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
4088 	    vha->vp_idx == fcport->vha->vp_idx) {
4089 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4090 		qla2x00_schedule_rport_del(vha, fcport);
4091 	}
4092 
4093 	/*
4094 	 * We may need to retry the login, so don't change the state of the
4095 	 * port but do the retries.
4096 	 */
4097 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
4098 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
4099 
4100 	if (!do_login)
4101 		return;
4102 
4103 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4104 }
4105 
4106 void
4107 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha)
4108 {
4109 	fc_port_t *fcport;
4110 
4111 	ql_dbg(ql_dbg_disc, vha, 0x20f1,
4112 	    "Mark all dev lost\n");
4113 
4114 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4115 		if (ql2xfc2target &&
4116 		    fcport->loop_id != FC_NO_LOOP_ID &&
4117 		    (fcport->flags & FCF_FCP2_DEVICE) &&
4118 		    fcport->port_type == FCT_TARGET &&
4119 		    !qla2x00_reset_active(vha)) {
4120 			ql_dbg(ql_dbg_disc, vha, 0x211a,
4121 			       "Delaying session delete for FCP2 flags 0x%x port_type = 0x%x port_id=%06x %phC",
4122 			       fcport->flags, fcport->port_type,
4123 			       fcport->d_id.b24, fcport->port_name);
4124 			continue;
4125 		}
4126 		fcport->scan_state = 0;
4127 		qlt_schedule_sess_for_deletion(fcport);
4128 	}
4129 }
4130 
4131 static void qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
4132 {
4133 	int i;
4134 
4135 	if (IS_FWI2_CAPABLE(ha))
4136 		return;
4137 
4138 	for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
4139 		set_bit(i, ha->loop_id_map);
4140 	set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
4141 	set_bit(BROADCAST, ha->loop_id_map);
4142 }
4143 
4144 /*
4145 * qla2x00_mem_alloc
4146 *      Allocates adapter memory.
4147 *
4148 * Returns:
4149 *      0  = success.
4150 *      !0  = failure.
4151 */
4152 static int
4153 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
4154 	struct req_que **req, struct rsp_que **rsp)
4155 {
4156 	char	name[16];
4157 	int rc;
4158 
4159 	if (QLA_TGT_MODE_ENABLED() || EDIF_CAP(ha)) {
4160 		ha->vp_map = kcalloc(MAX_MULTI_ID_FABRIC, sizeof(struct qla_vp_map), GFP_KERNEL);
4161 		if (!ha->vp_map)
4162 			goto fail;
4163 	}
4164 
4165 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
4166 		&ha->init_cb_dma, GFP_KERNEL);
4167 	if (!ha->init_cb)
4168 		goto fail_free_vp_map;
4169 
4170 	rc = btree_init32(&ha->host_map);
4171 	if (rc)
4172 		goto fail_free_init_cb;
4173 
4174 	if (qlt_mem_alloc(ha) < 0)
4175 		goto fail_free_btree;
4176 
4177 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
4178 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
4179 	if (!ha->gid_list)
4180 		goto fail_free_tgt_mem;
4181 
4182 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
4183 	if (!ha->srb_mempool)
4184 		goto fail_free_gid_list;
4185 
4186 	if (IS_P3P_TYPE(ha) || IS_QLA27XX(ha) || (ql2xsecenable && IS_QLA28XX(ha))) {
4187 		/* Allocate cache for CT6 Ctx. */
4188 		if (!ctx_cachep) {
4189 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
4190 				sizeof(struct ct6_dsd), 0,
4191 				SLAB_HWCACHE_ALIGN, NULL);
4192 			if (!ctx_cachep)
4193 				goto fail_free_srb_mempool;
4194 		}
4195 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
4196 			ctx_cachep);
4197 		if (!ha->ctx_mempool)
4198 			goto fail_free_srb_mempool;
4199 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
4200 		    "ctx_cachep=%p ctx_mempool=%p.\n",
4201 		    ctx_cachep, ha->ctx_mempool);
4202 	}
4203 
4204 	/* Get memory for cached NVRAM */
4205 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
4206 	if (!ha->nvram)
4207 		goto fail_free_ctx_mempool;
4208 
4209 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
4210 		ha->pdev->device);
4211 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4212 		DMA_POOL_SIZE, 8, 0);
4213 	if (!ha->s_dma_pool)
4214 		goto fail_free_nvram;
4215 
4216 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
4217 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
4218 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
4219 
4220 	if (IS_P3P_TYPE(ha) || ql2xenabledif || (IS_QLA28XX(ha) && ql2xsecenable)) {
4221 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4222 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
4223 		if (!ha->dl_dma_pool) {
4224 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
4225 			    "Failed to allocate memory for dl_dma_pool.\n");
4226 			goto fail_s_dma_pool;
4227 		}
4228 
4229 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4230 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
4231 		if (!ha->fcp_cmnd_dma_pool) {
4232 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
4233 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
4234 			goto fail_dl_dma_pool;
4235 		}
4236 
4237 		if (ql2xenabledif) {
4238 			u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
4239 			struct dsd_dma *dsd, *nxt;
4240 			uint i;
4241 			/* Creata a DMA pool of buffers for DIF bundling */
4242 			ha->dif_bundl_pool = dma_pool_create(name,
4243 			    &ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
4244 			if (!ha->dif_bundl_pool) {
4245 				ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4246 				    "%s: failed create dif_bundl_pool\n",
4247 				    __func__);
4248 				goto fail_dif_bundl_dma_pool;
4249 			}
4250 
4251 			INIT_LIST_HEAD(&ha->pool.good.head);
4252 			INIT_LIST_HEAD(&ha->pool.unusable.head);
4253 			ha->pool.good.count = 0;
4254 			ha->pool.unusable.count = 0;
4255 			for (i = 0; i < 128; i++) {
4256 				dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
4257 				if (!dsd) {
4258 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4259 					    0xe0ee, "%s: failed alloc dsd\n",
4260 					    __func__);
4261 					return -ENOMEM;
4262 				}
4263 				ha->dif_bundle_kallocs++;
4264 
4265 				dsd->dsd_addr = dma_pool_alloc(
4266 				    ha->dif_bundl_pool, GFP_ATOMIC,
4267 				    &dsd->dsd_list_dma);
4268 				if (!dsd->dsd_addr) {
4269 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4270 					    0xe0ee,
4271 					    "%s: failed alloc ->dsd_addr\n",
4272 					    __func__);
4273 					kfree(dsd);
4274 					ha->dif_bundle_kallocs--;
4275 					continue;
4276 				}
4277 				ha->dif_bundle_dma_allocs++;
4278 
4279 				/*
4280 				 * if DMA buffer crosses 4G boundary,
4281 				 * put it on bad list
4282 				 */
4283 				if (MSD(dsd->dsd_list_dma) ^
4284 				    MSD(dsd->dsd_list_dma + bufsize)) {
4285 					list_add_tail(&dsd->list,
4286 					    &ha->pool.unusable.head);
4287 					ha->pool.unusable.count++;
4288 				} else {
4289 					list_add_tail(&dsd->list,
4290 					    &ha->pool.good.head);
4291 					ha->pool.good.count++;
4292 				}
4293 			}
4294 
4295 			/* return the good ones back to the pool */
4296 			list_for_each_entry_safe(dsd, nxt,
4297 			    &ha->pool.good.head, list) {
4298 				list_del(&dsd->list);
4299 				dma_pool_free(ha->dif_bundl_pool,
4300 				    dsd->dsd_addr, dsd->dsd_list_dma);
4301 				ha->dif_bundle_dma_allocs--;
4302 				kfree(dsd);
4303 				ha->dif_bundle_kallocs--;
4304 			}
4305 
4306 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4307 			    "%s: dif dma pool (good=%u unusable=%u)\n",
4308 			    __func__, ha->pool.good.count,
4309 			    ha->pool.unusable.count);
4310 		}
4311 
4312 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
4313 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
4314 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
4315 		    ha->dif_bundl_pool);
4316 	}
4317 
4318 	/* Allocate memory for SNS commands */
4319 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4320 	/* Get consistent memory allocated for SNS commands */
4321 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
4322 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
4323 		if (!ha->sns_cmd)
4324 			goto fail_dma_pool;
4325 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
4326 		    "sns_cmd: %p.\n", ha->sns_cmd);
4327 	} else {
4328 	/* Get consistent memory allocated for MS IOCB */
4329 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4330 			&ha->ms_iocb_dma);
4331 		if (!ha->ms_iocb)
4332 			goto fail_dma_pool;
4333 	/* Get consistent memory allocated for CT SNS commands */
4334 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
4335 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
4336 		if (!ha->ct_sns)
4337 			goto fail_free_ms_iocb;
4338 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
4339 		    "ms_iocb=%p ct_sns=%p.\n",
4340 		    ha->ms_iocb, ha->ct_sns);
4341 	}
4342 
4343 	/* Allocate memory for request ring */
4344 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
4345 	if (!*req) {
4346 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
4347 		    "Failed to allocate memory for req.\n");
4348 		goto fail_req;
4349 	}
4350 	(*req)->length = req_len;
4351 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
4352 		((*req)->length + 1) * sizeof(request_t),
4353 		&(*req)->dma, GFP_KERNEL);
4354 	if (!(*req)->ring) {
4355 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
4356 		    "Failed to allocate memory for req_ring.\n");
4357 		goto fail_req_ring;
4358 	}
4359 	/* Allocate memory for response ring */
4360 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
4361 	if (!*rsp) {
4362 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
4363 		    "Failed to allocate memory for rsp.\n");
4364 		goto fail_rsp;
4365 	}
4366 	(*rsp)->hw = ha;
4367 	(*rsp)->length = rsp_len;
4368 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
4369 		((*rsp)->length + 1) * sizeof(response_t),
4370 		&(*rsp)->dma, GFP_KERNEL);
4371 	if (!(*rsp)->ring) {
4372 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
4373 		    "Failed to allocate memory for rsp_ring.\n");
4374 		goto fail_rsp_ring;
4375 	}
4376 	(*req)->rsp = *rsp;
4377 	(*rsp)->req = *req;
4378 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
4379 	    "req=%p req->length=%d req->ring=%p rsp=%p "
4380 	    "rsp->length=%d rsp->ring=%p.\n",
4381 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
4382 	    (*rsp)->ring);
4383 	/* Allocate memory for NVRAM data for vports */
4384 	if (ha->nvram_npiv_size) {
4385 		ha->npiv_info = kcalloc(ha->nvram_npiv_size,
4386 					sizeof(struct qla_npiv_entry),
4387 					GFP_KERNEL);
4388 		if (!ha->npiv_info) {
4389 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
4390 			    "Failed to allocate memory for npiv_info.\n");
4391 			goto fail_npiv_info;
4392 		}
4393 	} else
4394 		ha->npiv_info = NULL;
4395 
4396 	/* Get consistent memory allocated for EX-INIT-CB. */
4397 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
4398 	    IS_QLA28XX(ha)) {
4399 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4400 		    &ha->ex_init_cb_dma);
4401 		if (!ha->ex_init_cb)
4402 			goto fail_ex_init_cb;
4403 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
4404 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
4405 	}
4406 
4407 	/* Get consistent memory allocated for Special Features-CB. */
4408 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4409 		ha->sf_init_cb = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL,
4410 						&ha->sf_init_cb_dma);
4411 		if (!ha->sf_init_cb)
4412 			goto fail_sf_init_cb;
4413 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199,
4414 			   "sf_init_cb=%p.\n", ha->sf_init_cb);
4415 	}
4416 
4417 
4418 	/* Get consistent memory allocated for Async Port-Database. */
4419 	if (!IS_FWI2_CAPABLE(ha)) {
4420 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4421 			&ha->async_pd_dma);
4422 		if (!ha->async_pd)
4423 			goto fail_async_pd;
4424 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
4425 		    "async_pd=%p.\n", ha->async_pd);
4426 	}
4427 
4428 	INIT_LIST_HEAD(&ha->vp_list);
4429 
4430 	/* Allocate memory for our loop_id bitmap */
4431 	ha->loop_id_map = kcalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE),
4432 				  sizeof(long),
4433 				  GFP_KERNEL);
4434 	if (!ha->loop_id_map)
4435 		goto fail_loop_id_map;
4436 	else {
4437 		qla2x00_set_reserved_loop_ids(ha);
4438 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
4439 		    "loop_id_map=%p.\n", ha->loop_id_map);
4440 	}
4441 
4442 	ha->sfp_data = dma_alloc_coherent(&ha->pdev->dev,
4443 	    SFP_DEV_SIZE, &ha->sfp_data_dma, GFP_KERNEL);
4444 	if (!ha->sfp_data) {
4445 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4446 		    "Unable to allocate memory for SFP read-data.\n");
4447 		goto fail_sfp_data;
4448 	}
4449 
4450 	ha->flt = dma_alloc_coherent(&ha->pdev->dev,
4451 	    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, &ha->flt_dma,
4452 	    GFP_KERNEL);
4453 	if (!ha->flt) {
4454 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4455 		    "Unable to allocate memory for FLT.\n");
4456 		goto fail_flt_buffer;
4457 	}
4458 
4459 	/* allocate the purex dma pool */
4460 	ha->purex_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4461 	    ELS_MAX_PAYLOAD, 8, 0);
4462 
4463 	if (!ha->purex_dma_pool) {
4464 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4465 		    "Unable to allocate purex_dma_pool.\n");
4466 		goto fail_flt;
4467 	}
4468 
4469 	ha->elsrej.size = sizeof(struct fc_els_ls_rjt) + 16;
4470 	ha->elsrej.c = dma_alloc_coherent(&ha->pdev->dev,
4471 					  ha->elsrej.size,
4472 					  &ha->elsrej.cdma,
4473 					  GFP_KERNEL);
4474 	if (!ha->elsrej.c) {
4475 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
4476 		    "Alloc failed for els reject cmd.\n");
4477 		goto fail_elsrej;
4478 	}
4479 	ha->elsrej.c->er_cmd = ELS_LS_RJT;
4480 	ha->elsrej.c->er_reason = ELS_RJT_LOGIC;
4481 	ha->elsrej.c->er_explan = ELS_EXPL_UNAB_DATA;
4482 
4483 	ha->lsrjt.size = sizeof(struct fcnvme_ls_rjt);
4484 	ha->lsrjt.c = dma_alloc_coherent(&ha->pdev->dev, ha->lsrjt.size,
4485 			&ha->lsrjt.cdma, GFP_KERNEL);
4486 	if (!ha->lsrjt.c) {
4487 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0xffff,
4488 			   "Alloc failed for nvme fc reject cmd.\n");
4489 		goto fail_lsrjt;
4490 	}
4491 
4492 	return 0;
4493 
4494 fail_lsrjt:
4495 	dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
4496 			  ha->elsrej.c, ha->elsrej.cdma);
4497 fail_elsrej:
4498 	dma_pool_destroy(ha->purex_dma_pool);
4499 fail_flt:
4500 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4501 	    ha->flt, ha->flt_dma);
4502 
4503 fail_flt_buffer:
4504 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4505 	    ha->sfp_data, ha->sfp_data_dma);
4506 fail_sfp_data:
4507 	kfree(ha->loop_id_map);
4508 fail_loop_id_map:
4509 	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4510 fail_async_pd:
4511 	dma_pool_free(ha->s_dma_pool, ha->sf_init_cb, ha->sf_init_cb_dma);
4512 fail_sf_init_cb:
4513 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
4514 fail_ex_init_cb:
4515 	kfree(ha->npiv_info);
4516 fail_npiv_info:
4517 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
4518 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
4519 	(*rsp)->ring = NULL;
4520 	(*rsp)->dma = 0;
4521 fail_rsp_ring:
4522 	kfree(*rsp);
4523 	*rsp = NULL;
4524 fail_rsp:
4525 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
4526 		sizeof(request_t), (*req)->ring, (*req)->dma);
4527 	(*req)->ring = NULL;
4528 	(*req)->dma = 0;
4529 fail_req_ring:
4530 	kfree(*req);
4531 	*req = NULL;
4532 fail_req:
4533 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4534 		ha->ct_sns, ha->ct_sns_dma);
4535 	ha->ct_sns = NULL;
4536 	ha->ct_sns_dma = 0;
4537 fail_free_ms_iocb:
4538 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4539 	ha->ms_iocb = NULL;
4540 	ha->ms_iocb_dma = 0;
4541 
4542 	if (ha->sns_cmd)
4543 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4544 		    ha->sns_cmd, ha->sns_cmd_dma);
4545 fail_dma_pool:
4546 	if (ql2xenabledif) {
4547 		struct dsd_dma *dsd, *nxt;
4548 
4549 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4550 		    list) {
4551 			list_del(&dsd->list);
4552 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4553 			    dsd->dsd_list_dma);
4554 			ha->dif_bundle_dma_allocs--;
4555 			kfree(dsd);
4556 			ha->dif_bundle_kallocs--;
4557 			ha->pool.unusable.count--;
4558 		}
4559 		dma_pool_destroy(ha->dif_bundl_pool);
4560 		ha->dif_bundl_pool = NULL;
4561 	}
4562 
4563 fail_dif_bundl_dma_pool:
4564 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4565 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4566 		ha->fcp_cmnd_dma_pool = NULL;
4567 	}
4568 fail_dl_dma_pool:
4569 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4570 		dma_pool_destroy(ha->dl_dma_pool);
4571 		ha->dl_dma_pool = NULL;
4572 	}
4573 fail_s_dma_pool:
4574 	dma_pool_destroy(ha->s_dma_pool);
4575 	ha->s_dma_pool = NULL;
4576 fail_free_nvram:
4577 	kfree(ha->nvram);
4578 	ha->nvram = NULL;
4579 fail_free_ctx_mempool:
4580 	mempool_destroy(ha->ctx_mempool);
4581 	ha->ctx_mempool = NULL;
4582 fail_free_srb_mempool:
4583 	mempool_destroy(ha->srb_mempool);
4584 	ha->srb_mempool = NULL;
4585 fail_free_gid_list:
4586 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4587 	ha->gid_list,
4588 	ha->gid_list_dma);
4589 	ha->gid_list = NULL;
4590 	ha->gid_list_dma = 0;
4591 fail_free_tgt_mem:
4592 	qlt_mem_free(ha);
4593 fail_free_btree:
4594 	btree_destroy32(&ha->host_map);
4595 fail_free_init_cb:
4596 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
4597 	ha->init_cb_dma);
4598 	ha->init_cb = NULL;
4599 	ha->init_cb_dma = 0;
4600 fail_free_vp_map:
4601 	kfree(ha->vp_map);
4602 	ha->vp_map = NULL;
4603 fail:
4604 	ql_log(ql_log_fatal, NULL, 0x0030,
4605 	    "Memory allocation failure.\n");
4606 	return -ENOMEM;
4607 }
4608 
4609 int
4610 qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
4611 {
4612 	int rval;
4613 	uint16_t	size, max_cnt;
4614 	uint32_t temp;
4615 	struct qla_hw_data *ha = vha->hw;
4616 
4617 	/* Return if we don't need to alloacate any extended logins */
4618 	if (ql2xexlogins <= MAX_FIBRE_DEVICES_2400)
4619 		return QLA_SUCCESS;
4620 
4621 	if (!IS_EXLOGIN_OFFLD_CAPABLE(ha))
4622 		return QLA_SUCCESS;
4623 
4624 	ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
4625 	max_cnt = 0;
4626 	rval = qla_get_exlogin_status(vha, &size, &max_cnt);
4627 	if (rval != QLA_SUCCESS) {
4628 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
4629 		    "Failed to get exlogin status.\n");
4630 		return rval;
4631 	}
4632 
4633 	temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
4634 	temp *= size;
4635 
4636 	if (temp != ha->exlogin_size) {
4637 		qla2x00_free_exlogin_buffer(ha);
4638 		ha->exlogin_size = temp;
4639 
4640 		ql_log(ql_log_info, vha, 0xd024,
4641 		    "EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
4642 		    max_cnt, size, temp);
4643 
4644 		ql_log(ql_log_info, vha, 0xd025,
4645 		    "EXLOGIN: requested size=0x%x\n", ha->exlogin_size);
4646 
4647 		/* Get consistent memory for extended logins */
4648 		ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
4649 			ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
4650 		if (!ha->exlogin_buf) {
4651 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
4652 		    "Failed to allocate memory for exlogin_buf_dma.\n");
4653 			return -ENOMEM;
4654 		}
4655 	}
4656 
4657 	/* Now configure the dma buffer */
4658 	rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
4659 	if (rval) {
4660 		ql_log(ql_log_fatal, vha, 0xd033,
4661 		    "Setup extended login buffer  ****FAILED****.\n");
4662 		qla2x00_free_exlogin_buffer(ha);
4663 	}
4664 
4665 	return rval;
4666 }
4667 
4668 /*
4669 * qla2x00_free_exlogin_buffer
4670 *
4671 * Input:
4672 *	ha = adapter block pointer
4673 */
4674 void
4675 qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
4676 {
4677 	if (ha->exlogin_buf) {
4678 		dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
4679 		    ha->exlogin_buf, ha->exlogin_buf_dma);
4680 		ha->exlogin_buf = NULL;
4681 		ha->exlogin_size = 0;
4682 	}
4683 }
4684 
4685 static void
4686 qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
4687 {
4688 	u32 temp;
4689 	struct init_cb_81xx *icb = (struct init_cb_81xx *)vha->hw->init_cb;
4690 	*ret_cnt = FW_DEF_EXCHANGES_CNT;
4691 
4692 	if (max_cnt > vha->hw->max_exchg)
4693 		max_cnt = vha->hw->max_exchg;
4694 
4695 	if (qla_ini_mode_enabled(vha)) {
4696 		if (vha->ql2xiniexchg > max_cnt)
4697 			vha->ql2xiniexchg = max_cnt;
4698 
4699 		if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
4700 			*ret_cnt = vha->ql2xiniexchg;
4701 
4702 	} else if (qla_tgt_mode_enabled(vha)) {
4703 		if (vha->ql2xexchoffld > max_cnt) {
4704 			vha->ql2xexchoffld = max_cnt;
4705 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4706 		}
4707 
4708 		if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
4709 			*ret_cnt = vha->ql2xexchoffld;
4710 	} else if (qla_dual_mode_enabled(vha)) {
4711 		temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
4712 		if (temp > max_cnt) {
4713 			vha->ql2xiniexchg -= (temp - max_cnt)/2;
4714 			vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
4715 			temp = max_cnt;
4716 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4717 		}
4718 
4719 		if (temp > FW_DEF_EXCHANGES_CNT)
4720 			*ret_cnt = temp;
4721 	}
4722 }
4723 
4724 int
4725 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
4726 {
4727 	int rval;
4728 	u16	size, max_cnt;
4729 	u32 actual_cnt, totsz;
4730 	struct qla_hw_data *ha = vha->hw;
4731 
4732 	if (!ha->flags.exchoffld_enabled)
4733 		return QLA_SUCCESS;
4734 
4735 	if (!IS_EXCHG_OFFLD_CAPABLE(ha))
4736 		return QLA_SUCCESS;
4737 
4738 	max_cnt = 0;
4739 	rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
4740 	if (rval != QLA_SUCCESS) {
4741 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
4742 		    "Failed to get exlogin status.\n");
4743 		return rval;
4744 	}
4745 
4746 	qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
4747 	ql_log(ql_log_info, vha, 0xd014,
4748 	    "Actual exchange offload count: %d.\n", actual_cnt);
4749 
4750 	totsz = actual_cnt * size;
4751 
4752 	if (totsz != ha->exchoffld_size) {
4753 		qla2x00_free_exchoffld_buffer(ha);
4754 		if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
4755 			ha->exchoffld_size = 0;
4756 			ha->flags.exchoffld_enabled = 0;
4757 			return QLA_SUCCESS;
4758 		}
4759 
4760 		ha->exchoffld_size = totsz;
4761 
4762 		ql_log(ql_log_info, vha, 0xd016,
4763 		    "Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
4764 		    max_cnt, actual_cnt, size, totsz);
4765 
4766 		ql_log(ql_log_info, vha, 0xd017,
4767 		    "Exchange Buffers requested size = 0x%x\n",
4768 		    ha->exchoffld_size);
4769 
4770 		/* Get consistent memory for extended logins */
4771 		ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
4772 			ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
4773 		if (!ha->exchoffld_buf) {
4774 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4775 			"Failed to allocate memory for Exchange Offload.\n");
4776 
4777 			if (ha->max_exchg >
4778 			    (FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
4779 				ha->max_exchg -= REDUCE_EXCHANGES_CNT;
4780 			} else if (ha->max_exchg >
4781 			    (FW_DEF_EXCHANGES_CNT + 512)) {
4782 				ha->max_exchg -= 512;
4783 			} else {
4784 				ha->flags.exchoffld_enabled = 0;
4785 				ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4786 				    "Disabling Exchange offload due to lack of memory\n");
4787 			}
4788 			ha->exchoffld_size = 0;
4789 
4790 			return -ENOMEM;
4791 		}
4792 	} else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
4793 		/* pathological case */
4794 		qla2x00_free_exchoffld_buffer(ha);
4795 		ha->exchoffld_size = 0;
4796 		ha->flags.exchoffld_enabled = 0;
4797 		ql_log(ql_log_info, vha, 0xd016,
4798 		    "Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
4799 		    ha->exchoffld_size, actual_cnt, size, totsz);
4800 		return 0;
4801 	}
4802 
4803 	/* Now configure the dma buffer */
4804 	rval = qla_set_exchoffld_mem_cfg(vha);
4805 	if (rval) {
4806 		ql_log(ql_log_fatal, vha, 0xd02e,
4807 		    "Setup exchange offload buffer ****FAILED****.\n");
4808 		qla2x00_free_exchoffld_buffer(ha);
4809 	} else {
4810 		/* re-adjust number of target exchange */
4811 		struct init_cb_81xx *icb = (struct init_cb_81xx *)ha->init_cb;
4812 
4813 		if (qla_ini_mode_enabled(vha))
4814 			icb->exchange_count = 0;
4815 		else
4816 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4817 	}
4818 
4819 	return rval;
4820 }
4821 
4822 /*
4823 * qla2x00_free_exchoffld_buffer
4824 *
4825 * Input:
4826 *	ha = adapter block pointer
4827 */
4828 void
4829 qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
4830 {
4831 	if (ha->exchoffld_buf) {
4832 		dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
4833 		    ha->exchoffld_buf, ha->exchoffld_buf_dma);
4834 		ha->exchoffld_buf = NULL;
4835 		ha->exchoffld_size = 0;
4836 	}
4837 }
4838 
4839 /*
4840 * qla2x00_free_fw_dump
4841 *	Frees fw dump stuff.
4842 *
4843 * Input:
4844 *	ha = adapter block pointer
4845 */
4846 static void
4847 qla2x00_free_fw_dump(struct qla_hw_data *ha)
4848 {
4849 	struct fwdt *fwdt = ha->fwdt;
4850 	uint j;
4851 
4852 	if (ha->fce)
4853 		dma_free_coherent(&ha->pdev->dev,
4854 		    FCE_SIZE, ha->fce, ha->fce_dma);
4855 
4856 	if (ha->eft)
4857 		dma_free_coherent(&ha->pdev->dev,
4858 		    EFT_SIZE, ha->eft, ha->eft_dma);
4859 
4860 	vfree(ha->fw_dump);
4861 
4862 	ha->fce = NULL;
4863 	ha->fce_dma = 0;
4864 	ha->flags.fce_enabled = 0;
4865 	ha->eft = NULL;
4866 	ha->eft_dma = 0;
4867 	ha->fw_dumped = false;
4868 	ha->fw_dump_cap_flags = 0;
4869 	ha->fw_dump_reading = 0;
4870 	ha->fw_dump = NULL;
4871 	ha->fw_dump_len = 0;
4872 
4873 	for (j = 0; j < 2; j++, fwdt++) {
4874 		vfree(fwdt->template);
4875 		fwdt->template = NULL;
4876 		fwdt->length = 0;
4877 	}
4878 }
4879 
4880 /*
4881 * qla2x00_mem_free
4882 *      Frees all adapter allocated memory.
4883 *
4884 * Input:
4885 *      ha = adapter block pointer.
4886 */
4887 static void
4888 qla2x00_mem_free(struct qla_hw_data *ha)
4889 {
4890 	qla2x00_free_fw_dump(ha);
4891 
4892 	if (ha->mctp_dump)
4893 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
4894 		    ha->mctp_dump_dma);
4895 	ha->mctp_dump = NULL;
4896 
4897 	mempool_destroy(ha->srb_mempool);
4898 	ha->srb_mempool = NULL;
4899 
4900 	if (ha->dcbx_tlv)
4901 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
4902 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
4903 	ha->dcbx_tlv = NULL;
4904 
4905 	if (ha->xgmac_data)
4906 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
4907 		    ha->xgmac_data, ha->xgmac_data_dma);
4908 	ha->xgmac_data = NULL;
4909 
4910 	if (ha->sns_cmd)
4911 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4912 		ha->sns_cmd, ha->sns_cmd_dma);
4913 	ha->sns_cmd = NULL;
4914 	ha->sns_cmd_dma = 0;
4915 
4916 	if (ha->ct_sns)
4917 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4918 		ha->ct_sns, ha->ct_sns_dma);
4919 	ha->ct_sns = NULL;
4920 	ha->ct_sns_dma = 0;
4921 
4922 	if (ha->sfp_data)
4923 		dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, ha->sfp_data,
4924 		    ha->sfp_data_dma);
4925 	ha->sfp_data = NULL;
4926 
4927 	if (ha->flt)
4928 		dma_free_coherent(&ha->pdev->dev,
4929 		    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE,
4930 		    ha->flt, ha->flt_dma);
4931 	ha->flt = NULL;
4932 	ha->flt_dma = 0;
4933 
4934 	if (ha->ms_iocb)
4935 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4936 	ha->ms_iocb = NULL;
4937 	ha->ms_iocb_dma = 0;
4938 
4939 	if (ha->sf_init_cb)
4940 		dma_pool_free(ha->s_dma_pool,
4941 			      ha->sf_init_cb, ha->sf_init_cb_dma);
4942 
4943 	if (ha->ex_init_cb)
4944 		dma_pool_free(ha->s_dma_pool,
4945 			ha->ex_init_cb, ha->ex_init_cb_dma);
4946 	ha->ex_init_cb = NULL;
4947 	ha->ex_init_cb_dma = 0;
4948 
4949 	if (ha->async_pd)
4950 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4951 	ha->async_pd = NULL;
4952 	ha->async_pd_dma = 0;
4953 
4954 	dma_pool_destroy(ha->s_dma_pool);
4955 	ha->s_dma_pool = NULL;
4956 
4957 	if (ha->gid_list)
4958 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4959 		ha->gid_list, ha->gid_list_dma);
4960 	ha->gid_list = NULL;
4961 	ha->gid_list_dma = 0;
4962 
4963 	if (ha->base_qpair && !list_empty(&ha->base_qpair->dsd_list)) {
4964 		struct dsd_dma *dsd_ptr, *tdsd_ptr;
4965 
4966 		/* clean up allocated prev pool */
4967 		list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
4968 					 &ha->base_qpair->dsd_list, list) {
4969 			dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
4970 				      dsd_ptr->dsd_list_dma);
4971 			list_del(&dsd_ptr->list);
4972 			kfree(dsd_ptr);
4973 		}
4974 	}
4975 
4976 	dma_pool_destroy(ha->dl_dma_pool);
4977 	ha->dl_dma_pool = NULL;
4978 
4979 	dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4980 	ha->fcp_cmnd_dma_pool = NULL;
4981 
4982 	mempool_destroy(ha->ctx_mempool);
4983 	ha->ctx_mempool = NULL;
4984 
4985 	if (ql2xenabledif && ha->dif_bundl_pool) {
4986 		struct dsd_dma *dsd, *nxt;
4987 
4988 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4989 					 list) {
4990 			list_del(&dsd->list);
4991 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4992 				      dsd->dsd_list_dma);
4993 			ha->dif_bundle_dma_allocs--;
4994 			kfree(dsd);
4995 			ha->dif_bundle_kallocs--;
4996 			ha->pool.unusable.count--;
4997 		}
4998 		list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
4999 			list_del(&dsd->list);
5000 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
5001 				      dsd->dsd_list_dma);
5002 			ha->dif_bundle_dma_allocs--;
5003 			kfree(dsd);
5004 			ha->dif_bundle_kallocs--;
5005 		}
5006 	}
5007 
5008 	dma_pool_destroy(ha->dif_bundl_pool);
5009 	ha->dif_bundl_pool = NULL;
5010 
5011 	qlt_mem_free(ha);
5012 	qla_remove_hostmap(ha);
5013 
5014 	if (ha->init_cb)
5015 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
5016 			ha->init_cb, ha->init_cb_dma);
5017 
5018 	dma_pool_destroy(ha->purex_dma_pool);
5019 	ha->purex_dma_pool = NULL;
5020 
5021 	if (ha->elsrej.c) {
5022 		dma_free_coherent(&ha->pdev->dev, ha->elsrej.size,
5023 		    ha->elsrej.c, ha->elsrej.cdma);
5024 		ha->elsrej.c = NULL;
5025 	}
5026 
5027 	if (ha->lsrjt.c) {
5028 		dma_free_coherent(&ha->pdev->dev, ha->lsrjt.size, ha->lsrjt.c,
5029 				  ha->lsrjt.cdma);
5030 		ha->lsrjt.c = NULL;
5031 	}
5032 
5033 	ha->init_cb = NULL;
5034 	ha->init_cb_dma = 0;
5035 
5036 	vfree(ha->optrom_buffer);
5037 	ha->optrom_buffer = NULL;
5038 	kfree(ha->nvram);
5039 	ha->nvram = NULL;
5040 	kfree(ha->npiv_info);
5041 	ha->npiv_info = NULL;
5042 	kfree(ha->swl);
5043 	ha->swl = NULL;
5044 	kfree(ha->loop_id_map);
5045 	ha->sf_init_cb = NULL;
5046 	ha->sf_init_cb_dma = 0;
5047 	ha->loop_id_map = NULL;
5048 
5049 	kfree(ha->vp_map);
5050 	ha->vp_map = NULL;
5051 }
5052 
5053 struct scsi_qla_host *qla2x00_create_host(const struct scsi_host_template *sht,
5054 					  struct qla_hw_data *ha)
5055 {
5056 	struct Scsi_Host *host;
5057 	struct scsi_qla_host *vha = NULL;
5058 
5059 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
5060 	if (!host) {
5061 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
5062 		    "Failed to allocate host from the scsi layer, aborting.\n");
5063 		return NULL;
5064 	}
5065 
5066 	/* Clear our data area */
5067 	vha = shost_priv(host);
5068 	memset(vha, 0, sizeof(scsi_qla_host_t));
5069 
5070 	vha->host = host;
5071 	vha->host_no = host->host_no;
5072 	vha->hw = ha;
5073 
5074 	vha->qlini_mode = ql2x_ini_mode;
5075 	vha->ql2xexchoffld = ql2xexchoffld;
5076 	vha->ql2xiniexchg = ql2xiniexchg;
5077 
5078 	INIT_LIST_HEAD(&vha->vp_fcports);
5079 	INIT_LIST_HEAD(&vha->work_list);
5080 	INIT_LIST_HEAD(&vha->list);
5081 	INIT_LIST_HEAD(&vha->qla_cmd_list);
5082 	INIT_LIST_HEAD(&vha->logo_list);
5083 	INIT_LIST_HEAD(&vha->plogi_ack_list);
5084 	INIT_LIST_HEAD(&vha->qp_list);
5085 	INIT_LIST_HEAD(&vha->gnl.fcports);
5086 	INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
5087 
5088 	INIT_LIST_HEAD(&vha->purex_list.head);
5089 	spin_lock_init(&vha->purex_list.lock);
5090 
5091 	spin_lock_init(&vha->work_lock);
5092 	spin_lock_init(&vha->cmd_list_lock);
5093 	init_waitqueue_head(&vha->fcport_waitQ);
5094 	init_waitqueue_head(&vha->vref_waitq);
5095 	qla_enode_init(vha);
5096 	qla_edb_init(vha);
5097 
5098 
5099 	vha->gnl.size = sizeof(struct get_name_list_extended) *
5100 			(ha->max_loop_id + 1);
5101 	vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
5102 	    vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
5103 	if (!vha->gnl.l) {
5104 		ql_log(ql_log_fatal, vha, 0xd04a,
5105 		    "Alloc failed for name list.\n");
5106 		scsi_host_put(vha->host);
5107 		return NULL;
5108 	}
5109 
5110 	/* todo: what about ext login? */
5111 	vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
5112 	vha->scan.l = vmalloc(vha->scan.size);
5113 	if (!vha->scan.l) {
5114 		ql_log(ql_log_fatal, vha, 0xd04a,
5115 		    "Alloc failed for scan database.\n");
5116 		dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
5117 		    vha->gnl.l, vha->gnl.ldma);
5118 		vha->gnl.l = NULL;
5119 		scsi_host_put(vha->host);
5120 		return NULL;
5121 	}
5122 	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
5123 
5124 	snprintf(vha->host_str, sizeof(vha->host_str), "%s_%lu",
5125 		 QLA2XXX_DRIVER_NAME, vha->host_no);
5126 	ql_dbg(ql_dbg_init, vha, 0x0041,
5127 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
5128 	    vha->host, vha->hw, vha,
5129 	    dev_name(&(ha->pdev->dev)));
5130 
5131 	return vha;
5132 }
5133 
5134 struct qla_work_evt *
5135 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
5136 {
5137 	struct qla_work_evt *e;
5138 
5139 	if (test_bit(UNLOADING, &vha->dpc_flags))
5140 		return NULL;
5141 
5142 	if (qla_vha_mark_busy(vha))
5143 		return NULL;
5144 
5145 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
5146 	if (!e) {
5147 		QLA_VHA_MARK_NOT_BUSY(vha);
5148 		return NULL;
5149 	}
5150 
5151 	INIT_LIST_HEAD(&e->list);
5152 	e->type = type;
5153 	e->flags = QLA_EVT_FLAG_FREE;
5154 	return e;
5155 }
5156 
5157 int
5158 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
5159 {
5160 	unsigned long flags;
5161 	bool q = false;
5162 
5163 	spin_lock_irqsave(&vha->work_lock, flags);
5164 	list_add_tail(&e->list, &vha->work_list);
5165 
5166 	if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
5167 		q = true;
5168 
5169 	spin_unlock_irqrestore(&vha->work_lock, flags);
5170 
5171 	if (q)
5172 		queue_work(vha->hw->wq, &vha->iocb_work);
5173 
5174 	return QLA_SUCCESS;
5175 }
5176 
5177 int
5178 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
5179     u32 data)
5180 {
5181 	struct qla_work_evt *e;
5182 
5183 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
5184 	if (!e)
5185 		return QLA_FUNCTION_FAILED;
5186 
5187 	e->u.aen.code = code;
5188 	e->u.aen.data = data;
5189 	return qla2x00_post_work(vha, e);
5190 }
5191 
5192 int
5193 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
5194 {
5195 	struct qla_work_evt *e;
5196 
5197 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
5198 	if (!e)
5199 		return QLA_FUNCTION_FAILED;
5200 
5201 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
5202 	return qla2x00_post_work(vha, e);
5203 }
5204 
5205 #define qla2x00_post_async_work(name, type)	\
5206 int qla2x00_post_async_##name##_work(		\
5207     struct scsi_qla_host *vha,			\
5208     fc_port_t *fcport, uint16_t *data)		\
5209 {						\
5210 	struct qla_work_evt *e;			\
5211 						\
5212 	e = qla2x00_alloc_work(vha, type);	\
5213 	if (!e)					\
5214 		return QLA_FUNCTION_FAILED;	\
5215 						\
5216 	e->u.logio.fcport = fcport;		\
5217 	if (data) {				\
5218 		e->u.logio.data[0] = data[0];	\
5219 		e->u.logio.data[1] = data[1];	\
5220 	}					\
5221 	fcport->flags |= FCF_ASYNC_ACTIVE;	\
5222 	return qla2x00_post_work(vha, e);	\
5223 }
5224 
5225 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
5226 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
5227 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
5228 qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
5229 qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
5230 
5231 int
5232 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
5233 {
5234 	struct qla_work_evt *e;
5235 
5236 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
5237 	if (!e)
5238 		return QLA_FUNCTION_FAILED;
5239 
5240 	e->u.uevent.code = code;
5241 	return qla2x00_post_work(vha, e);
5242 }
5243 
5244 static void
5245 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
5246 {
5247 	char event_string[40];
5248 	char *envp[] = { event_string, NULL };
5249 
5250 	switch (code) {
5251 	case QLA_UEVENT_CODE_FW_DUMP:
5252 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu",
5253 		    vha->host_no);
5254 		break;
5255 	default:
5256 		/* do nothing */
5257 		break;
5258 	}
5259 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
5260 }
5261 
5262 int
5263 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
5264 			uint32_t *data, int cnt)
5265 {
5266 	struct qla_work_evt *e;
5267 
5268 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
5269 	if (!e)
5270 		return QLA_FUNCTION_FAILED;
5271 
5272 	e->u.aenfx.evtcode = evtcode;
5273 	e->u.aenfx.count = cnt;
5274 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
5275 	return qla2x00_post_work(vha, e);
5276 }
5277 
5278 void qla24xx_sched_upd_fcport(fc_port_t *fcport)
5279 {
5280 	unsigned long flags;
5281 
5282 	if (IS_SW_RESV_ADDR(fcport->d_id))
5283 		return;
5284 
5285 	spin_lock_irqsave(&fcport->vha->work_lock, flags);
5286 	if (fcport->disc_state == DSC_UPD_FCPORT) {
5287 		spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5288 		return;
5289 	}
5290 	fcport->jiffies_at_registration = jiffies;
5291 	fcport->sec_since_registration = 0;
5292 	fcport->next_disc_state = DSC_DELETED;
5293 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5294 	spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
5295 
5296 	queue_work(system_unbound_wq, &fcport->reg_work);
5297 }
5298 
5299 static
5300 void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
5301 {
5302 	unsigned long flags;
5303 	fc_port_t *fcport =  NULL, *tfcp;
5304 	struct qlt_plogi_ack_t *pla =
5305 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
5306 	uint8_t free_fcport = 0;
5307 
5308 	ql_dbg(ql_dbg_disc, vha, 0xffff,
5309 	    "%s %d %8phC enter\n",
5310 	    __func__, __LINE__, e->u.new_sess.port_name);
5311 
5312 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5313 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
5314 	if (fcport) {
5315 		fcport->d_id = e->u.new_sess.id;
5316 		if (pla) {
5317 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5318 			memcpy(fcport->node_name,
5319 			    pla->iocb.u.isp24.u.plogi.node_name,
5320 			    WWN_SIZE);
5321 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
5322 			/* we took an extra ref_count to prevent PLOGI ACK when
5323 			 * fcport/sess has not been created.
5324 			 */
5325 			pla->ref_count--;
5326 		}
5327 	} else {
5328 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5329 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5330 		if (fcport) {
5331 			fcport->d_id = e->u.new_sess.id;
5332 			fcport->flags |= FCF_FABRIC_DEVICE;
5333 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5334 			fcport->tgt_short_link_down_cnt = 0;
5335 
5336 			memcpy(fcport->port_name, e->u.new_sess.port_name,
5337 			    WWN_SIZE);
5338 
5339 			fcport->fc4_type = e->u.new_sess.fc4_type;
5340 			if (NVME_PRIORITY(vha->hw, fcport))
5341 				fcport->do_prli_nvme = 1;
5342 			else
5343 				fcport->do_prli_nvme = 0;
5344 
5345 			if (e->u.new_sess.fc4_type & FS_FCP_IS_N2N) {
5346 				fcport->dm_login_expire = jiffies +
5347 					QLA_N2N_WAIT_TIME * HZ;
5348 				fcport->fc4_type = FS_FC4TYPE_FCP;
5349 				fcport->n2n_flag = 1;
5350 				if (vha->flags.nvme_enabled)
5351 					fcport->fc4_type |= FS_FC4TYPE_NVME;
5352 			}
5353 
5354 		} else {
5355 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5356 				   "%s %8phC mem alloc fail.\n",
5357 				   __func__, e->u.new_sess.port_name);
5358 
5359 			if (pla) {
5360 				list_del(&pla->list);
5361 				kmem_cache_free(qla_tgt_plogi_cachep, pla);
5362 			}
5363 			return;
5364 		}
5365 
5366 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5367 		/* search again to make sure no one else got ahead */
5368 		tfcp = qla2x00_find_fcport_by_wwpn(vha,
5369 		    e->u.new_sess.port_name, 1);
5370 		if (tfcp) {
5371 			/* should rarily happen */
5372 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5373 			    "%s %8phC found existing fcport b4 add. DS %d LS %d\n",
5374 			    __func__, tfcp->port_name, tfcp->disc_state,
5375 			    tfcp->fw_login_state);
5376 
5377 			free_fcport = 1;
5378 		} else {
5379 			list_add_tail(&fcport->list, &vha->vp_fcports);
5380 
5381 		}
5382 		if (pla) {
5383 			qlt_plogi_ack_link(vha, pla, fcport,
5384 			    QLT_PLOGI_LINK_SAME_WWN);
5385 			pla->ref_count--;
5386 		}
5387 	}
5388 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5389 
5390 	if (fcport) {
5391 		fcport->id_changed = 1;
5392 		fcport->scan_state = QLA_FCPORT_FOUND;
5393 		fcport->chip_reset = vha->hw->base_qpair->chip_reset;
5394 		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
5395 
5396 		if (pla) {
5397 			if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
5398 				u16 wd3_lo;
5399 
5400 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5401 				fcport->local = 0;
5402 				fcport->loop_id =
5403 					le16_to_cpu(
5404 					    pla->iocb.u.isp24.nport_handle);
5405 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5406 				wd3_lo =
5407 				    le16_to_cpu(
5408 					pla->iocb.u.isp24.u.prli.wd3_lo);
5409 
5410 				if (wd3_lo & BIT_7)
5411 					fcport->conf_compl_supported = 1;
5412 
5413 				if ((wd3_lo & BIT_4) == 0)
5414 					fcport->port_type = FCT_INITIATOR;
5415 				else
5416 					fcport->port_type = FCT_TARGET;
5417 			}
5418 			qlt_plogi_ack_unref(vha, pla);
5419 		} else {
5420 			fc_port_t *dfcp = NULL;
5421 
5422 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5423 			tfcp = qla2x00_find_fcport_by_nportid(vha,
5424 			    &e->u.new_sess.id, 1);
5425 			if (tfcp && (tfcp != fcport)) {
5426 				/*
5427 				 * We have a conflict fcport with same NportID.
5428 				 */
5429 				ql_dbg(ql_dbg_disc, vha, 0xffff,
5430 				    "%s %8phC found conflict b4 add. DS %d LS %d\n",
5431 				    __func__, tfcp->port_name, tfcp->disc_state,
5432 				    tfcp->fw_login_state);
5433 
5434 				switch (tfcp->disc_state) {
5435 				case DSC_DELETED:
5436 					break;
5437 				case DSC_DELETE_PEND:
5438 					fcport->login_pause = 1;
5439 					tfcp->conflict = fcport;
5440 					break;
5441 				default:
5442 					fcport->login_pause = 1;
5443 					tfcp->conflict = fcport;
5444 					dfcp = tfcp;
5445 					break;
5446 				}
5447 			}
5448 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5449 			if (dfcp)
5450 				qlt_schedule_sess_for_deletion(tfcp);
5451 
5452 			if (N2N_TOPO(vha->hw)) {
5453 				fcport->flags &= ~FCF_FABRIC_DEVICE;
5454 				fcport->keep_nport_handle = 1;
5455 				if (vha->flags.nvme_enabled) {
5456 					fcport->fc4_type =
5457 					    (FS_FC4TYPE_NVME | FS_FC4TYPE_FCP);
5458 					fcport->n2n_flag = 1;
5459 				}
5460 				fcport->fw_login_state = 0;
5461 
5462 				schedule_delayed_work(&vha->scan.scan_work, 5);
5463 			} else {
5464 				qla24xx_fcport_handle_login(vha, fcport);
5465 			}
5466 		}
5467 	}
5468 
5469 	if (free_fcport) {
5470 		qla2x00_free_fcport(fcport);
5471 		if (pla) {
5472 			list_del(&pla->list);
5473 			kmem_cache_free(qla_tgt_plogi_cachep, pla);
5474 		}
5475 	}
5476 }
5477 
5478 static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
5479 {
5480 	struct srb *sp = e->u.iosb.sp;
5481 	int rval;
5482 
5483 	rval = qla2x00_start_sp(sp);
5484 	if (rval != QLA_SUCCESS) {
5485 		ql_dbg(ql_dbg_disc, vha, 0x2043,
5486 		    "%s: %s: Re-issue IOCB failed (%d).\n",
5487 		    __func__, sp->name, rval);
5488 		qla24xx_sp_unmap(vha, sp);
5489 	}
5490 }
5491 
5492 void
5493 qla2x00_do_work(struct scsi_qla_host *vha)
5494 {
5495 	struct qla_work_evt *e, *tmp;
5496 	unsigned long flags;
5497 	LIST_HEAD(work);
5498 	int rc;
5499 
5500 	spin_lock_irqsave(&vha->work_lock, flags);
5501 	list_splice_init(&vha->work_list, &work);
5502 	spin_unlock_irqrestore(&vha->work_lock, flags);
5503 
5504 	list_for_each_entry_safe(e, tmp, &work, list) {
5505 		rc = QLA_SUCCESS;
5506 		switch (e->type) {
5507 		case QLA_EVT_AEN:
5508 			fc_host_post_event(vha->host, fc_get_event_number(),
5509 			    e->u.aen.code, e->u.aen.data);
5510 			break;
5511 		case QLA_EVT_IDC_ACK:
5512 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
5513 			break;
5514 		case QLA_EVT_ASYNC_LOGIN:
5515 			qla2x00_async_login(vha, e->u.logio.fcport,
5516 			    e->u.logio.data);
5517 			break;
5518 		case QLA_EVT_ASYNC_LOGOUT:
5519 			rc = qla2x00_async_logout(vha, e->u.logio.fcport);
5520 			break;
5521 		case QLA_EVT_ASYNC_ADISC:
5522 			qla2x00_async_adisc(vha, e->u.logio.fcport,
5523 			    e->u.logio.data);
5524 			break;
5525 		case QLA_EVT_UEVENT:
5526 			qla2x00_uevent_emit(vha, e->u.uevent.code);
5527 			break;
5528 		case QLA_EVT_AENFX:
5529 			qlafx00_process_aen(vha, e);
5530 			break;
5531 		case QLA_EVT_UNMAP:
5532 			qla24xx_sp_unmap(vha, e->u.iosb.sp);
5533 			break;
5534 		case QLA_EVT_RELOGIN:
5535 			qla2x00_relogin(vha);
5536 			break;
5537 		case QLA_EVT_NEW_SESS:
5538 			qla24xx_create_new_sess(vha, e);
5539 			break;
5540 		case QLA_EVT_GPDB:
5541 			qla24xx_async_gpdb(vha, e->u.fcport.fcport,
5542 			    e->u.fcport.opt);
5543 			break;
5544 		case QLA_EVT_PRLI:
5545 			qla24xx_async_prli(vha, e->u.fcport.fcport);
5546 			break;
5547 		case QLA_EVT_GPSC:
5548 			qla24xx_async_gpsc(vha, e->u.fcport.fcport);
5549 			break;
5550 		case QLA_EVT_GNL:
5551 			qla24xx_async_gnl(vha, e->u.fcport.fcport);
5552 			break;
5553 		case QLA_EVT_NACK:
5554 			qla24xx_do_nack_work(vha, e);
5555 			break;
5556 		case QLA_EVT_ASYNC_PRLO:
5557 			rc = qla2x00_async_prlo(vha, e->u.logio.fcport);
5558 			break;
5559 		case QLA_EVT_ASYNC_PRLO_DONE:
5560 			qla2x00_async_prlo_done(vha, e->u.logio.fcport,
5561 			    e->u.logio.data);
5562 			break;
5563 		case QLA_EVT_SCAN_CMD:
5564 			qla_fab_async_scan(vha, e->u.iosb.sp);
5565 			break;
5566 		case QLA_EVT_SCAN_FINISH:
5567 			qla_fab_scan_finish(vha, e->u.iosb.sp);
5568 			break;
5569 		case QLA_EVT_GFPNID:
5570 			qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
5571 			break;
5572 		case QLA_EVT_SP_RETRY:
5573 			qla_sp_retry(vha, e);
5574 			break;
5575 		case QLA_EVT_IIDMA:
5576 			qla_do_iidma_work(vha, e->u.fcport.fcport);
5577 			break;
5578 		case QLA_EVT_ELS_PLOGI:
5579 			qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
5580 			    e->u.fcport.fcport);
5581 			break;
5582 		case QLA_EVT_SA_REPLACE:
5583 			rc = qla24xx_issue_sa_replace_iocb(vha, e);
5584 			break;
5585 		}
5586 
5587 		if (rc == EAGAIN) {
5588 			/* put 'work' at head of 'vha->work_list' */
5589 			spin_lock_irqsave(&vha->work_lock, flags);
5590 			list_splice(&work, &vha->work_list);
5591 			spin_unlock_irqrestore(&vha->work_lock, flags);
5592 			break;
5593 		}
5594 		list_del_init(&e->list);
5595 		if (e->flags & QLA_EVT_FLAG_FREE)
5596 			kfree(e);
5597 
5598 		/* For each work completed decrement vha ref count */
5599 		QLA_VHA_MARK_NOT_BUSY(vha);
5600 	}
5601 }
5602 
5603 int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
5604 {
5605 	struct qla_work_evt *e;
5606 
5607 	e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
5608 
5609 	if (!e) {
5610 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5611 		return QLA_FUNCTION_FAILED;
5612 	}
5613 
5614 	return qla2x00_post_work(vha, e);
5615 }
5616 
5617 /* Relogins all the fcports of a vport
5618  * Context: dpc thread
5619  */
5620 void qla2x00_relogin(struct scsi_qla_host *vha)
5621 {
5622 	fc_port_t       *fcport;
5623 	int status, relogin_needed = 0;
5624 	struct event_arg ea;
5625 
5626 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5627 		/*
5628 		 * If the port is not ONLINE then try to login
5629 		 * to it if we haven't run out of retries.
5630 		 */
5631 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
5632 		    fcport->login_retry) {
5633 			if (fcport->scan_state != QLA_FCPORT_FOUND ||
5634 			    fcport->disc_state == DSC_LOGIN_AUTH_PEND ||
5635 			    fcport->disc_state == DSC_LOGIN_COMPLETE)
5636 				continue;
5637 
5638 			if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
5639 				fcport->disc_state == DSC_DELETE_PEND) {
5640 				relogin_needed = 1;
5641 			} else {
5642 				if (vha->hw->current_topology != ISP_CFG_NL) {
5643 					memset(&ea, 0, sizeof(ea));
5644 					ea.fcport = fcport;
5645 					qla24xx_handle_relogin_event(vha, &ea);
5646 				} else if (vha->hw->current_topology ==
5647 					 ISP_CFG_NL &&
5648 					IS_QLA2XXX_MIDTYPE(vha->hw)) {
5649 					(void)qla24xx_fcport_handle_login(vha,
5650 									fcport);
5651 				} else if (vha->hw->current_topology ==
5652 				    ISP_CFG_NL) {
5653 					fcport->login_retry--;
5654 					status =
5655 					    qla2x00_local_device_login(vha,
5656 						fcport);
5657 					if (status == QLA_SUCCESS) {
5658 						fcport->old_loop_id =
5659 						    fcport->loop_id;
5660 						ql_dbg(ql_dbg_disc, vha, 0x2003,
5661 						    "Port login OK: logged in ID 0x%x.\n",
5662 						    fcport->loop_id);
5663 						qla2x00_update_fcport
5664 							(vha, fcport);
5665 					} else if (status == 1) {
5666 						set_bit(RELOGIN_NEEDED,
5667 						    &vha->dpc_flags);
5668 						/* retry the login again */
5669 						ql_dbg(ql_dbg_disc, vha, 0x2007,
5670 						    "Retrying %d login again loop_id 0x%x.\n",
5671 						    fcport->login_retry,
5672 						    fcport->loop_id);
5673 					} else {
5674 						fcport->login_retry = 0;
5675 					}
5676 
5677 					if (fcport->login_retry == 0 &&
5678 					    status != QLA_SUCCESS)
5679 						qla2x00_clear_loop_id(fcport);
5680 				}
5681 			}
5682 		}
5683 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5684 			break;
5685 	}
5686 
5687 	if (relogin_needed)
5688 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5689 
5690 	ql_dbg(ql_dbg_disc, vha, 0x400e,
5691 	    "Relogin end.\n");
5692 }
5693 
5694 /* Schedule work on any of the dpc-workqueues */
5695 void
5696 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
5697 {
5698 	struct qla_hw_data *ha = base_vha->hw;
5699 
5700 	switch (work_code) {
5701 	case MBA_IDC_AEN: /* 0x8200 */
5702 		if (ha->dpc_lp_wq)
5703 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
5704 		break;
5705 
5706 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
5707 		if (!ha->flags.nic_core_reset_hdlr_active) {
5708 			if (ha->dpc_hp_wq)
5709 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
5710 		} else
5711 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
5712 			    "NIC Core reset is already active. Skip "
5713 			    "scheduling it again.\n");
5714 		break;
5715 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
5716 		if (ha->dpc_hp_wq)
5717 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
5718 		break;
5719 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
5720 		if (ha->dpc_hp_wq)
5721 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
5722 		break;
5723 	default:
5724 		ql_log(ql_log_warn, base_vha, 0xb05f,
5725 		    "Unknown work-code=0x%x.\n", work_code);
5726 	}
5727 
5728 	return;
5729 }
5730 
5731 /* Work: Perform NIC Core Unrecoverable state handling */
5732 void
5733 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
5734 {
5735 	struct qla_hw_data *ha =
5736 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
5737 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5738 	uint32_t dev_state = 0;
5739 
5740 	qla83xx_idc_lock(base_vha, 0);
5741 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5742 	qla83xx_reset_ownership(base_vha);
5743 	if (ha->flags.nic_core_reset_owner) {
5744 		ha->flags.nic_core_reset_owner = 0;
5745 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5746 		    QLA8XXX_DEV_FAILED);
5747 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
5748 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5749 	}
5750 	qla83xx_idc_unlock(base_vha, 0);
5751 }
5752 
5753 /* Work: Execute IDC state handler */
5754 void
5755 qla83xx_idc_state_handler_work(struct work_struct *work)
5756 {
5757 	struct qla_hw_data *ha =
5758 		container_of(work, struct qla_hw_data, idc_state_handler);
5759 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5760 	uint32_t dev_state = 0;
5761 
5762 	qla83xx_idc_lock(base_vha, 0);
5763 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5764 	if (dev_state == QLA8XXX_DEV_FAILED ||
5765 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
5766 		qla83xx_idc_state_handler(base_vha);
5767 	qla83xx_idc_unlock(base_vha, 0);
5768 }
5769 
5770 static int
5771 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
5772 {
5773 	int rval = QLA_SUCCESS;
5774 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
5775 	uint32_t heart_beat_counter1, heart_beat_counter2;
5776 
5777 	do {
5778 		if (time_after(jiffies, heart_beat_wait)) {
5779 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
5780 			    "Nic Core f/w is not alive.\n");
5781 			rval = QLA_FUNCTION_FAILED;
5782 			break;
5783 		}
5784 
5785 		qla83xx_idc_lock(base_vha, 0);
5786 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5787 		    &heart_beat_counter1);
5788 		qla83xx_idc_unlock(base_vha, 0);
5789 		msleep(100);
5790 		qla83xx_idc_lock(base_vha, 0);
5791 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5792 		    &heart_beat_counter2);
5793 		qla83xx_idc_unlock(base_vha, 0);
5794 	} while (heart_beat_counter1 == heart_beat_counter2);
5795 
5796 	return rval;
5797 }
5798 
5799 /* Work: Perform NIC Core Reset handling */
5800 void
5801 qla83xx_nic_core_reset_work(struct work_struct *work)
5802 {
5803 	struct qla_hw_data *ha =
5804 		container_of(work, struct qla_hw_data, nic_core_reset);
5805 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5806 	uint32_t dev_state = 0;
5807 
5808 	if (IS_QLA2031(ha)) {
5809 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
5810 			ql_log(ql_log_warn, base_vha, 0xb081,
5811 			    "Failed to dump mctp\n");
5812 		return;
5813 	}
5814 
5815 	if (!ha->flags.nic_core_reset_hdlr_active) {
5816 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
5817 			qla83xx_idc_lock(base_vha, 0);
5818 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5819 			    &dev_state);
5820 			qla83xx_idc_unlock(base_vha, 0);
5821 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
5822 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
5823 				    "Nic Core f/w is alive.\n");
5824 				return;
5825 			}
5826 		}
5827 
5828 		ha->flags.nic_core_reset_hdlr_active = 1;
5829 		if (qla83xx_nic_core_reset(base_vha)) {
5830 			/* NIC Core reset failed. */
5831 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
5832 			    "NIC Core reset failed.\n");
5833 		}
5834 		ha->flags.nic_core_reset_hdlr_active = 0;
5835 	}
5836 }
5837 
5838 /* Work: Handle 8200 IDC aens */
5839 void
5840 qla83xx_service_idc_aen(struct work_struct *work)
5841 {
5842 	struct qla_hw_data *ha =
5843 		container_of(work, struct qla_hw_data, idc_aen);
5844 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5845 	uint32_t dev_state, idc_control;
5846 
5847 	qla83xx_idc_lock(base_vha, 0);
5848 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5849 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
5850 	qla83xx_idc_unlock(base_vha, 0);
5851 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
5852 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
5853 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
5854 			    "Application requested NIC Core Reset.\n");
5855 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5856 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
5857 		    QLA_SUCCESS) {
5858 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
5859 			    "Other protocol driver requested NIC Core Reset.\n");
5860 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5861 		}
5862 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
5863 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
5864 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5865 	}
5866 }
5867 
5868 /*
5869  * Control the frequency of IDC lock retries
5870  */
5871 #define QLA83XX_WAIT_LOGIC_MS	100
5872 
5873 static int
5874 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
5875 {
5876 	int rval;
5877 	uint32_t data;
5878 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
5879 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
5880 	struct qla_hw_data *ha = base_vha->hw;
5881 
5882 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
5883 	    "Trying force recovery of the IDC lock.\n");
5884 
5885 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
5886 	if (rval)
5887 		return rval;
5888 
5889 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
5890 		return QLA_SUCCESS;
5891 	} else {
5892 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
5893 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5894 		    data);
5895 		if (rval)
5896 			return rval;
5897 
5898 		msleep(200);
5899 
5900 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5901 		    &data);
5902 		if (rval)
5903 			return rval;
5904 
5905 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
5906 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
5907 					~(idc_lck_rcvry_stage_mask));
5908 			rval = qla83xx_wr_reg(base_vha,
5909 			    QLA83XX_IDC_LOCK_RECOVERY, data);
5910 			if (rval)
5911 				return rval;
5912 
5913 			/* Forcefully perform IDC UnLock */
5914 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
5915 			    &data);
5916 			if (rval)
5917 				return rval;
5918 			/* Clear lock-id by setting 0xff */
5919 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5920 			    0xff);
5921 			if (rval)
5922 				return rval;
5923 			/* Clear lock-recovery by setting 0x0 */
5924 			rval = qla83xx_wr_reg(base_vha,
5925 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
5926 			if (rval)
5927 				return rval;
5928 		} else
5929 			return QLA_SUCCESS;
5930 	}
5931 
5932 	return rval;
5933 }
5934 
5935 static int
5936 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
5937 {
5938 	int rval = QLA_SUCCESS;
5939 	uint32_t o_drv_lockid, n_drv_lockid;
5940 	unsigned long lock_recovery_timeout;
5941 
5942 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
5943 retry_lockid:
5944 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
5945 	if (rval)
5946 		goto exit;
5947 
5948 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
5949 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
5950 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
5951 			return QLA_SUCCESS;
5952 		else
5953 			return QLA_FUNCTION_FAILED;
5954 	}
5955 
5956 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
5957 	if (rval)
5958 		goto exit;
5959 
5960 	if (o_drv_lockid == n_drv_lockid) {
5961 		msleep(QLA83XX_WAIT_LOGIC_MS);
5962 		goto retry_lockid;
5963 	} else
5964 		return QLA_SUCCESS;
5965 
5966 exit:
5967 	return rval;
5968 }
5969 
5970 /*
5971  * Context: task, can sleep
5972  */
5973 void
5974 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
5975 {
5976 	uint32_t data;
5977 	uint32_t lock_owner;
5978 	struct qla_hw_data *ha = base_vha->hw;
5979 
5980 	might_sleep();
5981 
5982 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
5983 retry_lock:
5984 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
5985 	    == QLA_SUCCESS) {
5986 		if (data) {
5987 			/* Setting lock-id to our function-number */
5988 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5989 			    ha->portnum);
5990 		} else {
5991 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5992 			    &lock_owner);
5993 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
5994 			    "Failed to acquire IDC lock, acquired by %d, "
5995 			    "retrying...\n", lock_owner);
5996 
5997 			/* Retry/Perform IDC-Lock recovery */
5998 			if (qla83xx_idc_lock_recovery(base_vha)
5999 			    == QLA_SUCCESS) {
6000 				msleep(QLA83XX_WAIT_LOGIC_MS);
6001 				goto retry_lock;
6002 			} else
6003 				ql_log(ql_log_warn, base_vha, 0xb075,
6004 				    "IDC Lock recovery FAILED.\n");
6005 		}
6006 
6007 	}
6008 
6009 	return;
6010 }
6011 
6012 static bool
6013 qla25xx_rdp_rsp_reduce_size(struct scsi_qla_host *vha,
6014 	struct purex_entry_24xx *purex)
6015 {
6016 	char fwstr[16];
6017 	u32 sid = purex->s_id[2] << 16 | purex->s_id[1] << 8 | purex->s_id[0];
6018 	struct port_database_24xx *pdb;
6019 
6020 	/* Domain Controller is always logged-out. */
6021 	/* if RDP request is not from Domain Controller: */
6022 	if (sid != 0xfffc01)
6023 		return false;
6024 
6025 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: s_id=%#x\n", __func__, sid);
6026 
6027 	pdb = kzalloc(sizeof(*pdb), GFP_KERNEL);
6028 	if (!pdb) {
6029 		ql_dbg(ql_dbg_init, vha, 0x0181,
6030 		    "%s: Failed allocate pdb\n", __func__);
6031 	} else if (qla24xx_get_port_database(vha,
6032 				le16_to_cpu(purex->nport_handle), pdb)) {
6033 		ql_dbg(ql_dbg_init, vha, 0x0181,
6034 		    "%s: Failed get pdb sid=%x\n", __func__, sid);
6035 	} else if (pdb->current_login_state != PDS_PLOGI_COMPLETE &&
6036 	    pdb->current_login_state != PDS_PRLI_COMPLETE) {
6037 		ql_dbg(ql_dbg_init, vha, 0x0181,
6038 		    "%s: Port not logged in sid=%#x\n", __func__, sid);
6039 	} else {
6040 		/* RDP request is from logged in port */
6041 		kfree(pdb);
6042 		return false;
6043 	}
6044 	kfree(pdb);
6045 
6046 	vha->hw->isp_ops->fw_version_str(vha, fwstr, sizeof(fwstr));
6047 	fwstr[strcspn(fwstr, " ")] = 0;
6048 	/* if FW version allows RDP response length upto 2048 bytes: */
6049 	if (strcmp(fwstr, "8.09.00") > 0 || strcmp(fwstr, "8.05.65") == 0)
6050 		return false;
6051 
6052 	ql_dbg(ql_dbg_init, vha, 0x0181, "%s: fw=%s\n", __func__, fwstr);
6053 
6054 	/* RDP response length is to be reduced to maximum 256 bytes */
6055 	return true;
6056 }
6057 
6058 /*
6059  * Function Name: qla24xx_process_purex_iocb
6060  *
6061  * Description:
6062  * Prepare a RDP response and send to Fabric switch
6063  *
6064  * PARAMETERS:
6065  * vha:	SCSI qla host
6066  * purex: RDP request received by HBA
6067  */
6068 void qla24xx_process_purex_rdp(struct scsi_qla_host *vha,
6069 			       struct purex_item *item)
6070 {
6071 	struct qla_hw_data *ha = vha->hw;
6072 	struct purex_entry_24xx *purex =
6073 	    (struct purex_entry_24xx *)&item->iocb;
6074 	dma_addr_t rsp_els_dma;
6075 	dma_addr_t rsp_payload_dma;
6076 	dma_addr_t stat_dma;
6077 	dma_addr_t sfp_dma;
6078 	struct els_entry_24xx *rsp_els = NULL;
6079 	struct rdp_rsp_payload *rsp_payload = NULL;
6080 	struct link_statistics *stat = NULL;
6081 	uint8_t *sfp = NULL;
6082 	uint16_t sfp_flags = 0;
6083 	uint rsp_payload_length = sizeof(*rsp_payload);
6084 	int rval;
6085 
6086 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0180,
6087 	    "%s: Enter\n", __func__);
6088 
6089 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0181,
6090 	    "-------- ELS REQ -------\n");
6091 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0182,
6092 	    purex, sizeof(*purex));
6093 
6094 	if (qla25xx_rdp_rsp_reduce_size(vha, purex)) {
6095 		rsp_payload_length =
6096 		    offsetof(typeof(*rsp_payload), optical_elmt_desc);
6097 		ql_dbg(ql_dbg_init, vha, 0x0181,
6098 		    "Reducing RSP payload length to %u bytes...\n",
6099 		    rsp_payload_length);
6100 	}
6101 
6102 	rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6103 	    &rsp_els_dma, GFP_KERNEL);
6104 	if (!rsp_els) {
6105 		ql_log(ql_log_warn, vha, 0x0183,
6106 		    "Failed allocate dma buffer ELS RSP.\n");
6107 		goto dealloc;
6108 	}
6109 
6110 	rsp_payload = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6111 	    &rsp_payload_dma, GFP_KERNEL);
6112 	if (!rsp_payload) {
6113 		ql_log(ql_log_warn, vha, 0x0184,
6114 		    "Failed allocate dma buffer ELS RSP payload.\n");
6115 		goto dealloc;
6116 	}
6117 
6118 	sfp = dma_alloc_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6119 	    &sfp_dma, GFP_KERNEL);
6120 
6121 	stat = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stat),
6122 	    &stat_dma, GFP_KERNEL);
6123 
6124 	/* Prepare Response IOCB */
6125 	rsp_els->entry_type = ELS_IOCB_TYPE;
6126 	rsp_els->entry_count = 1;
6127 	rsp_els->sys_define = 0;
6128 	rsp_els->entry_status = 0;
6129 	rsp_els->handle = 0;
6130 	rsp_els->nport_handle = purex->nport_handle;
6131 	rsp_els->tx_dsd_count = cpu_to_le16(1);
6132 	rsp_els->vp_index = purex->vp_idx;
6133 	rsp_els->sof_type = EST_SOFI3;
6134 	rsp_els->rx_xchg_address = purex->rx_xchg_addr;
6135 	rsp_els->rx_dsd_count = 0;
6136 	rsp_els->opcode = purex->els_frame_payload[0];
6137 
6138 	rsp_els->d_id[0] = purex->s_id[0];
6139 	rsp_els->d_id[1] = purex->s_id[1];
6140 	rsp_els->d_id[2] = purex->s_id[2];
6141 
6142 	rsp_els->control_flags = cpu_to_le16(EPD_ELS_ACC);
6143 	rsp_els->rx_byte_count = 0;
6144 	rsp_els->tx_byte_count = cpu_to_le32(rsp_payload_length);
6145 
6146 	put_unaligned_le64(rsp_payload_dma, &rsp_els->tx_address);
6147 	rsp_els->tx_len = rsp_els->tx_byte_count;
6148 
6149 	rsp_els->rx_address = 0;
6150 	rsp_els->rx_len = 0;
6151 
6152 	/* Prepare Response Payload */
6153 	rsp_payload->hdr.cmd = cpu_to_be32(0x2 << 24); /* LS_ACC */
6154 	rsp_payload->hdr.len = cpu_to_be32(le32_to_cpu(rsp_els->tx_byte_count) -
6155 					   sizeof(rsp_payload->hdr));
6156 
6157 	/* Link service Request Info Descriptor */
6158 	rsp_payload->ls_req_info_desc.desc_tag = cpu_to_be32(0x1);
6159 	rsp_payload->ls_req_info_desc.desc_len =
6160 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc));
6161 	rsp_payload->ls_req_info_desc.req_payload_word_0 =
6162 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6163 
6164 	/* Link service Request Info Descriptor 2 */
6165 	rsp_payload->ls_req_info_desc2.desc_tag = cpu_to_be32(0x1);
6166 	rsp_payload->ls_req_info_desc2.desc_len =
6167 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_req_info_desc2));
6168 	rsp_payload->ls_req_info_desc2.req_payload_word_0 =
6169 	    cpu_to_be32p((uint32_t *)purex->els_frame_payload);
6170 
6171 
6172 	rsp_payload->sfp_diag_desc.desc_tag = cpu_to_be32(0x10000);
6173 	rsp_payload->sfp_diag_desc.desc_len =
6174 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->sfp_diag_desc));
6175 
6176 	if (sfp) {
6177 		/* SFP Flags */
6178 		memset(sfp, 0, SFP_RTDI_LEN);
6179 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x7, 2, 0);
6180 		if (!rval) {
6181 			/* SFP Flags bits 3-0: Port Tx Laser Type */
6182 			if (sfp[0] & BIT_2 || sfp[1] & (BIT_6|BIT_5))
6183 				sfp_flags |= BIT_0; /* short wave */
6184 			else if (sfp[0] & BIT_1)
6185 				sfp_flags |= BIT_1; /* long wave 1310nm */
6186 			else if (sfp[1] & BIT_4)
6187 				sfp_flags |= BIT_1|BIT_0; /* long wave 1550nm */
6188 		}
6189 
6190 		/* SFP Type */
6191 		memset(sfp, 0, SFP_RTDI_LEN);
6192 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 0x0, 1, 0);
6193 		if (!rval) {
6194 			sfp_flags |= BIT_4; /* optical */
6195 			if (sfp[0] == 0x3)
6196 				sfp_flags |= BIT_6; /* sfp+ */
6197 		}
6198 
6199 		rsp_payload->sfp_diag_desc.sfp_flags = cpu_to_be16(sfp_flags);
6200 
6201 		/* SFP Diagnostics */
6202 		memset(sfp, 0, SFP_RTDI_LEN);
6203 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0x60, 10, 0);
6204 		if (!rval) {
6205 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6206 			rsp_payload->sfp_diag_desc.temperature = trx[0];
6207 			rsp_payload->sfp_diag_desc.vcc = trx[1];
6208 			rsp_payload->sfp_diag_desc.tx_bias = trx[2];
6209 			rsp_payload->sfp_diag_desc.tx_power = trx[3];
6210 			rsp_payload->sfp_diag_desc.rx_power = trx[4];
6211 		}
6212 	}
6213 
6214 	/* Port Speed Descriptor */
6215 	rsp_payload->port_speed_desc.desc_tag = cpu_to_be32(0x10001);
6216 	rsp_payload->port_speed_desc.desc_len =
6217 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_speed_desc));
6218 	rsp_payload->port_speed_desc.speed_capab = cpu_to_be16(
6219 	    qla25xx_fdmi_port_speed_capability(ha));
6220 	rsp_payload->port_speed_desc.operating_speed = cpu_to_be16(
6221 	    qla25xx_fdmi_port_speed_currently(ha));
6222 
6223 	/* Link Error Status Descriptor */
6224 	rsp_payload->ls_err_desc.desc_tag = cpu_to_be32(0x10002);
6225 	rsp_payload->ls_err_desc.desc_len =
6226 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->ls_err_desc));
6227 
6228 	if (stat) {
6229 		rval = qla24xx_get_isp_stats(vha, stat, stat_dma, 0);
6230 		if (!rval) {
6231 			rsp_payload->ls_err_desc.link_fail_cnt =
6232 			    cpu_to_be32(le32_to_cpu(stat->link_fail_cnt));
6233 			rsp_payload->ls_err_desc.loss_sync_cnt =
6234 			    cpu_to_be32(le32_to_cpu(stat->loss_sync_cnt));
6235 			rsp_payload->ls_err_desc.loss_sig_cnt =
6236 			    cpu_to_be32(le32_to_cpu(stat->loss_sig_cnt));
6237 			rsp_payload->ls_err_desc.prim_seq_err_cnt =
6238 			    cpu_to_be32(le32_to_cpu(stat->prim_seq_err_cnt));
6239 			rsp_payload->ls_err_desc.inval_xmit_word_cnt =
6240 			    cpu_to_be32(le32_to_cpu(stat->inval_xmit_word_cnt));
6241 			rsp_payload->ls_err_desc.inval_crc_cnt =
6242 			    cpu_to_be32(le32_to_cpu(stat->inval_crc_cnt));
6243 			rsp_payload->ls_err_desc.pn_port_phy_type |= BIT_6;
6244 		}
6245 	}
6246 
6247 	/* Portname Descriptor */
6248 	rsp_payload->port_name_diag_desc.desc_tag = cpu_to_be32(0x10003);
6249 	rsp_payload->port_name_diag_desc.desc_len =
6250 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_diag_desc));
6251 	memcpy(rsp_payload->port_name_diag_desc.WWNN,
6252 	    vha->node_name,
6253 	    sizeof(rsp_payload->port_name_diag_desc.WWNN));
6254 	memcpy(rsp_payload->port_name_diag_desc.WWPN,
6255 	    vha->port_name,
6256 	    sizeof(rsp_payload->port_name_diag_desc.WWPN));
6257 
6258 	/* F-Port Portname Descriptor */
6259 	rsp_payload->port_name_direct_desc.desc_tag = cpu_to_be32(0x10003);
6260 	rsp_payload->port_name_direct_desc.desc_len =
6261 	    cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_name_direct_desc));
6262 	memcpy(rsp_payload->port_name_direct_desc.WWNN,
6263 	    vha->fabric_node_name,
6264 	    sizeof(rsp_payload->port_name_direct_desc.WWNN));
6265 	memcpy(rsp_payload->port_name_direct_desc.WWPN,
6266 	    vha->fabric_port_name,
6267 	    sizeof(rsp_payload->port_name_direct_desc.WWPN));
6268 
6269 	/* Bufer Credit Descriptor */
6270 	rsp_payload->buffer_credit_desc.desc_tag = cpu_to_be32(0x10006);
6271 	rsp_payload->buffer_credit_desc.desc_len =
6272 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->buffer_credit_desc));
6273 	rsp_payload->buffer_credit_desc.fcport_b2b = 0;
6274 	rsp_payload->buffer_credit_desc.attached_fcport_b2b = cpu_to_be32(0);
6275 	rsp_payload->buffer_credit_desc.fcport_rtt = cpu_to_be32(0);
6276 
6277 	if (ha->flags.plogi_template_valid) {
6278 		uint32_t tmp =
6279 		be16_to_cpu(ha->plogi_els_payld.fl_csp.sp_bb_cred);
6280 		rsp_payload->buffer_credit_desc.fcport_b2b = cpu_to_be32(tmp);
6281 	}
6282 
6283 	if (rsp_payload_length < sizeof(*rsp_payload))
6284 		goto send;
6285 
6286 	/* Optical Element Descriptor, Temperature */
6287 	rsp_payload->optical_elmt_desc[0].desc_tag = cpu_to_be32(0x10007);
6288 	rsp_payload->optical_elmt_desc[0].desc_len =
6289 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6290 	/* Optical Element Descriptor, Voltage */
6291 	rsp_payload->optical_elmt_desc[1].desc_tag = cpu_to_be32(0x10007);
6292 	rsp_payload->optical_elmt_desc[1].desc_len =
6293 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6294 	/* Optical Element Descriptor, Tx Bias Current */
6295 	rsp_payload->optical_elmt_desc[2].desc_tag = cpu_to_be32(0x10007);
6296 	rsp_payload->optical_elmt_desc[2].desc_len =
6297 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6298 	/* Optical Element Descriptor, Tx Power */
6299 	rsp_payload->optical_elmt_desc[3].desc_tag = cpu_to_be32(0x10007);
6300 	rsp_payload->optical_elmt_desc[3].desc_len =
6301 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6302 	/* Optical Element Descriptor, Rx Power */
6303 	rsp_payload->optical_elmt_desc[4].desc_tag = cpu_to_be32(0x10007);
6304 	rsp_payload->optical_elmt_desc[4].desc_len =
6305 		cpu_to_be32(RDP_DESC_LEN(*rsp_payload->optical_elmt_desc));
6306 
6307 	if (sfp) {
6308 		memset(sfp, 0, SFP_RTDI_LEN);
6309 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 0, 64, 0);
6310 		if (!rval) {
6311 			__be16 *trx = (__force __be16 *)sfp; /* already be16 */
6312 
6313 			/* Optical Element Descriptor, Temperature */
6314 			rsp_payload->optical_elmt_desc[0].high_alarm = trx[0];
6315 			rsp_payload->optical_elmt_desc[0].low_alarm = trx[1];
6316 			rsp_payload->optical_elmt_desc[0].high_warn = trx[2];
6317 			rsp_payload->optical_elmt_desc[0].low_warn = trx[3];
6318 			rsp_payload->optical_elmt_desc[0].element_flags =
6319 			    cpu_to_be32(1 << 28);
6320 
6321 			/* Optical Element Descriptor, Voltage */
6322 			rsp_payload->optical_elmt_desc[1].high_alarm = trx[4];
6323 			rsp_payload->optical_elmt_desc[1].low_alarm = trx[5];
6324 			rsp_payload->optical_elmt_desc[1].high_warn = trx[6];
6325 			rsp_payload->optical_elmt_desc[1].low_warn = trx[7];
6326 			rsp_payload->optical_elmt_desc[1].element_flags =
6327 			    cpu_to_be32(2 << 28);
6328 
6329 			/* Optical Element Descriptor, Tx Bias Current */
6330 			rsp_payload->optical_elmt_desc[2].high_alarm = trx[8];
6331 			rsp_payload->optical_elmt_desc[2].low_alarm = trx[9];
6332 			rsp_payload->optical_elmt_desc[2].high_warn = trx[10];
6333 			rsp_payload->optical_elmt_desc[2].low_warn = trx[11];
6334 			rsp_payload->optical_elmt_desc[2].element_flags =
6335 			    cpu_to_be32(3 << 28);
6336 
6337 			/* Optical Element Descriptor, Tx Power */
6338 			rsp_payload->optical_elmt_desc[3].high_alarm = trx[12];
6339 			rsp_payload->optical_elmt_desc[3].low_alarm = trx[13];
6340 			rsp_payload->optical_elmt_desc[3].high_warn = trx[14];
6341 			rsp_payload->optical_elmt_desc[3].low_warn = trx[15];
6342 			rsp_payload->optical_elmt_desc[3].element_flags =
6343 			    cpu_to_be32(4 << 28);
6344 
6345 			/* Optical Element Descriptor, Rx Power */
6346 			rsp_payload->optical_elmt_desc[4].high_alarm = trx[16];
6347 			rsp_payload->optical_elmt_desc[4].low_alarm = trx[17];
6348 			rsp_payload->optical_elmt_desc[4].high_warn = trx[18];
6349 			rsp_payload->optical_elmt_desc[4].low_warn = trx[19];
6350 			rsp_payload->optical_elmt_desc[4].element_flags =
6351 			    cpu_to_be32(5 << 28);
6352 		}
6353 
6354 		memset(sfp, 0, SFP_RTDI_LEN);
6355 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa2, 112, 64, 0);
6356 		if (!rval) {
6357 			/* Temperature high/low alarm/warning */
6358 			rsp_payload->optical_elmt_desc[0].element_flags |=
6359 			    cpu_to_be32(
6360 				(sfp[0] >> 7 & 1) << 3 |
6361 				(sfp[0] >> 6 & 1) << 2 |
6362 				(sfp[4] >> 7 & 1) << 1 |
6363 				(sfp[4] >> 6 & 1) << 0);
6364 
6365 			/* Voltage high/low alarm/warning */
6366 			rsp_payload->optical_elmt_desc[1].element_flags |=
6367 			    cpu_to_be32(
6368 				(sfp[0] >> 5 & 1) << 3 |
6369 				(sfp[0] >> 4 & 1) << 2 |
6370 				(sfp[4] >> 5 & 1) << 1 |
6371 				(sfp[4] >> 4 & 1) << 0);
6372 
6373 			/* Tx Bias Current high/low alarm/warning */
6374 			rsp_payload->optical_elmt_desc[2].element_flags |=
6375 			    cpu_to_be32(
6376 				(sfp[0] >> 3 & 1) << 3 |
6377 				(sfp[0] >> 2 & 1) << 2 |
6378 				(sfp[4] >> 3 & 1) << 1 |
6379 				(sfp[4] >> 2 & 1) << 0);
6380 
6381 			/* Tx Power high/low alarm/warning */
6382 			rsp_payload->optical_elmt_desc[3].element_flags |=
6383 			    cpu_to_be32(
6384 				(sfp[0] >> 1 & 1) << 3 |
6385 				(sfp[0] >> 0 & 1) << 2 |
6386 				(sfp[4] >> 1 & 1) << 1 |
6387 				(sfp[4] >> 0 & 1) << 0);
6388 
6389 			/* Rx Power high/low alarm/warning */
6390 			rsp_payload->optical_elmt_desc[4].element_flags |=
6391 			    cpu_to_be32(
6392 				(sfp[1] >> 7 & 1) << 3 |
6393 				(sfp[1] >> 6 & 1) << 2 |
6394 				(sfp[5] >> 7 & 1) << 1 |
6395 				(sfp[5] >> 6 & 1) << 0);
6396 		}
6397 	}
6398 
6399 	/* Optical Product Data Descriptor */
6400 	rsp_payload->optical_prod_desc.desc_tag = cpu_to_be32(0x10008);
6401 	rsp_payload->optical_prod_desc.desc_len =
6402 		cpu_to_be32(RDP_DESC_LEN(rsp_payload->optical_prod_desc));
6403 
6404 	if (sfp) {
6405 		memset(sfp, 0, SFP_RTDI_LEN);
6406 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 20, 64, 0);
6407 		if (!rval) {
6408 			memcpy(rsp_payload->optical_prod_desc.vendor_name,
6409 			    sfp + 0,
6410 			    sizeof(rsp_payload->optical_prod_desc.vendor_name));
6411 			memcpy(rsp_payload->optical_prod_desc.part_number,
6412 			    sfp + 20,
6413 			    sizeof(rsp_payload->optical_prod_desc.part_number));
6414 			memcpy(rsp_payload->optical_prod_desc.revision,
6415 			    sfp + 36,
6416 			    sizeof(rsp_payload->optical_prod_desc.revision));
6417 			memcpy(rsp_payload->optical_prod_desc.serial_number,
6418 			    sfp + 48,
6419 			    sizeof(rsp_payload->optical_prod_desc.serial_number));
6420 		}
6421 
6422 		memset(sfp, 0, SFP_RTDI_LEN);
6423 		rval = qla2x00_read_sfp(vha, sfp_dma, sfp, 0xa0, 84, 8, 0);
6424 		if (!rval) {
6425 			memcpy(rsp_payload->optical_prod_desc.date,
6426 			    sfp + 0,
6427 			    sizeof(rsp_payload->optical_prod_desc.date));
6428 		}
6429 	}
6430 
6431 send:
6432 	ql_dbg(ql_dbg_init, vha, 0x0183,
6433 	    "Sending ELS Response to RDP Request...\n");
6434 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0184,
6435 	    "-------- ELS RSP -------\n");
6436 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0185,
6437 	    rsp_els, sizeof(*rsp_els));
6438 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0186,
6439 	    "-------- ELS RSP PAYLOAD -------\n");
6440 	ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0187,
6441 	    rsp_payload, rsp_payload_length);
6442 
6443 	rval = qla2x00_issue_iocb(vha, rsp_els, rsp_els_dma, 0);
6444 
6445 	if (rval) {
6446 		ql_log(ql_log_warn, vha, 0x0188,
6447 		    "%s: iocb failed to execute -> %x\n", __func__, rval);
6448 	} else if (rsp_els->comp_status) {
6449 		ql_log(ql_log_warn, vha, 0x0189,
6450 		    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
6451 		    __func__, rsp_els->comp_status,
6452 		    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
6453 	} else {
6454 		ql_dbg(ql_dbg_init, vha, 0x018a, "%s: done.\n", __func__);
6455 	}
6456 
6457 dealloc:
6458 	if (stat)
6459 		dma_free_coherent(&ha->pdev->dev, sizeof(*stat),
6460 		    stat, stat_dma);
6461 	if (sfp)
6462 		dma_free_coherent(&ha->pdev->dev, SFP_RTDI_LEN,
6463 		    sfp, sfp_dma);
6464 	if (rsp_payload)
6465 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_payload),
6466 		    rsp_payload, rsp_payload_dma);
6467 	if (rsp_els)
6468 		dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els),
6469 		    rsp_els, rsp_els_dma);
6470 }
6471 
6472 void
6473 qla24xx_free_purex_item(struct purex_item *item)
6474 {
6475 	if (item == &item->vha->default_item)
6476 		memset(&item->vha->default_item, 0, sizeof(struct purex_item));
6477 	else
6478 		kfree(item);
6479 }
6480 
6481 void qla24xx_process_purex_list(struct purex_list *list)
6482 {
6483 	struct list_head head = LIST_HEAD_INIT(head);
6484 	struct purex_item *item, *next;
6485 	ulong flags;
6486 
6487 	spin_lock_irqsave(&list->lock, flags);
6488 	list_splice_init(&list->head, &head);
6489 	spin_unlock_irqrestore(&list->lock, flags);
6490 
6491 	list_for_each_entry_safe(item, next, &head, list) {
6492 		list_del(&item->list);
6493 		item->process_item(item->vha, item);
6494 		qla24xx_free_purex_item(item);
6495 	}
6496 }
6497 
6498 /*
6499  * Context: task, can sleep
6500  */
6501 void
6502 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
6503 {
6504 #if 0
6505 	uint16_t options = (requester_id << 15) | BIT_7;
6506 #endif
6507 	uint16_t retry;
6508 	uint32_t data;
6509 	struct qla_hw_data *ha = base_vha->hw;
6510 
6511 	might_sleep();
6512 
6513 	/* IDC-unlock implementation using driver-unlock/lock-id
6514 	 * remote registers
6515 	 */
6516 	retry = 0;
6517 retry_unlock:
6518 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
6519 	    == QLA_SUCCESS) {
6520 		if (data == ha->portnum) {
6521 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
6522 			/* Clearing lock-id by setting 0xff */
6523 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
6524 		} else if (retry < 10) {
6525 			/* SV: XXX: IDC unlock retrying needed here? */
6526 
6527 			/* Retry for IDC-unlock */
6528 			msleep(QLA83XX_WAIT_LOGIC_MS);
6529 			retry++;
6530 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
6531 			    "Failed to release IDC lock, retrying=%d\n", retry);
6532 			goto retry_unlock;
6533 		}
6534 	} else if (retry < 10) {
6535 		/* Retry for IDC-unlock */
6536 		msleep(QLA83XX_WAIT_LOGIC_MS);
6537 		retry++;
6538 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
6539 		    "Failed to read drv-lockid, retrying=%d\n", retry);
6540 		goto retry_unlock;
6541 	}
6542 
6543 	return;
6544 
6545 #if 0
6546 	/* XXX: IDC-unlock implementation using access-control mbx */
6547 	retry = 0;
6548 retry_unlock2:
6549 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
6550 		if (retry < 10) {
6551 			/* Retry for IDC-unlock */
6552 			msleep(QLA83XX_WAIT_LOGIC_MS);
6553 			retry++;
6554 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
6555 			    "Failed to release IDC lock, retrying=%d\n", retry);
6556 			goto retry_unlock2;
6557 		}
6558 	}
6559 
6560 	return;
6561 #endif
6562 }
6563 
6564 int
6565 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6566 {
6567 	int rval = QLA_SUCCESS;
6568 	struct qla_hw_data *ha = vha->hw;
6569 	uint32_t drv_presence;
6570 
6571 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6572 	if (rval == QLA_SUCCESS) {
6573 		drv_presence |= (1 << ha->portnum);
6574 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6575 		    drv_presence);
6576 	}
6577 
6578 	return rval;
6579 }
6580 
6581 int
6582 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
6583 {
6584 	int rval = QLA_SUCCESS;
6585 
6586 	qla83xx_idc_lock(vha, 0);
6587 	rval = __qla83xx_set_drv_presence(vha);
6588 	qla83xx_idc_unlock(vha, 0);
6589 
6590 	return rval;
6591 }
6592 
6593 int
6594 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6595 {
6596 	int rval = QLA_SUCCESS;
6597 	struct qla_hw_data *ha = vha->hw;
6598 	uint32_t drv_presence;
6599 
6600 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6601 	if (rval == QLA_SUCCESS) {
6602 		drv_presence &= ~(1 << ha->portnum);
6603 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6604 		    drv_presence);
6605 	}
6606 
6607 	return rval;
6608 }
6609 
6610 int
6611 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
6612 {
6613 	int rval = QLA_SUCCESS;
6614 
6615 	qla83xx_idc_lock(vha, 0);
6616 	rval = __qla83xx_clear_drv_presence(vha);
6617 	qla83xx_idc_unlock(vha, 0);
6618 
6619 	return rval;
6620 }
6621 
6622 static void
6623 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
6624 {
6625 	struct qla_hw_data *ha = vha->hw;
6626 	uint32_t drv_ack, drv_presence;
6627 	unsigned long ack_timeout;
6628 
6629 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
6630 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
6631 	while (1) {
6632 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6633 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6634 		if ((drv_ack & drv_presence) == drv_presence)
6635 			break;
6636 
6637 		if (time_after_eq(jiffies, ack_timeout)) {
6638 			ql_log(ql_log_warn, vha, 0xb067,
6639 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
6640 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
6641 			/*
6642 			 * The function(s) which did not ack in time are forced
6643 			 * to withdraw any further participation in the IDC
6644 			 * reset.
6645 			 */
6646 			if (drv_ack != drv_presence)
6647 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
6648 				    drv_ack);
6649 			break;
6650 		}
6651 
6652 		qla83xx_idc_unlock(vha, 0);
6653 		msleep(1000);
6654 		qla83xx_idc_lock(vha, 0);
6655 	}
6656 
6657 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
6658 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
6659 }
6660 
6661 static int
6662 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
6663 {
6664 	int rval = QLA_SUCCESS;
6665 	uint32_t idc_control;
6666 
6667 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
6668 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
6669 
6670 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
6671 	__qla83xx_get_idc_control(vha, &idc_control);
6672 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
6673 	__qla83xx_set_idc_control(vha, 0);
6674 
6675 	qla83xx_idc_unlock(vha, 0);
6676 	rval = qla83xx_restart_nic_firmware(vha);
6677 	qla83xx_idc_lock(vha, 0);
6678 
6679 	if (rval != QLA_SUCCESS) {
6680 		ql_log(ql_log_fatal, vha, 0xb06a,
6681 		    "Failed to restart NIC f/w.\n");
6682 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
6683 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
6684 	} else {
6685 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
6686 		    "Success in restarting nic f/w.\n");
6687 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
6688 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
6689 	}
6690 
6691 	return rval;
6692 }
6693 
6694 /* Assumes idc_lock always held on entry */
6695 int
6696 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
6697 {
6698 	struct qla_hw_data *ha = base_vha->hw;
6699 	int rval = QLA_SUCCESS;
6700 	unsigned long dev_init_timeout;
6701 	uint32_t dev_state;
6702 
6703 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
6704 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
6705 
6706 	while (1) {
6707 
6708 		if (time_after_eq(jiffies, dev_init_timeout)) {
6709 			ql_log(ql_log_warn, base_vha, 0xb06e,
6710 			    "Initialization TIMEOUT!\n");
6711 			/* Init timeout. Disable further NIC Core
6712 			 * communication.
6713 			 */
6714 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
6715 				QLA8XXX_DEV_FAILED);
6716 			ql_log(ql_log_info, base_vha, 0xb06f,
6717 			    "HW State: FAILED.\n");
6718 		}
6719 
6720 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6721 		switch (dev_state) {
6722 		case QLA8XXX_DEV_READY:
6723 			if (ha->flags.nic_core_reset_owner)
6724 				qla83xx_idc_audit(base_vha,
6725 				    IDC_AUDIT_COMPLETION);
6726 			ha->flags.nic_core_reset_owner = 0;
6727 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
6728 			    "Reset_owner reset by 0x%x.\n",
6729 			    ha->portnum);
6730 			goto exit;
6731 		case QLA8XXX_DEV_COLD:
6732 			if (ha->flags.nic_core_reset_owner)
6733 				rval = qla83xx_device_bootstrap(base_vha);
6734 			else {
6735 			/* Wait for AEN to change device-state */
6736 				qla83xx_idc_unlock(base_vha, 0);
6737 				msleep(1000);
6738 				qla83xx_idc_lock(base_vha, 0);
6739 			}
6740 			break;
6741 		case QLA8XXX_DEV_INITIALIZING:
6742 			/* Wait for AEN to change device-state */
6743 			qla83xx_idc_unlock(base_vha, 0);
6744 			msleep(1000);
6745 			qla83xx_idc_lock(base_vha, 0);
6746 			break;
6747 		case QLA8XXX_DEV_NEED_RESET:
6748 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
6749 				qla83xx_need_reset_handler(base_vha);
6750 			else {
6751 				/* Wait for AEN to change device-state */
6752 				qla83xx_idc_unlock(base_vha, 0);
6753 				msleep(1000);
6754 				qla83xx_idc_lock(base_vha, 0);
6755 			}
6756 			/* reset timeout value after need reset handler */
6757 			dev_init_timeout = jiffies +
6758 			    (ha->fcoe_dev_init_timeout * HZ);
6759 			break;
6760 		case QLA8XXX_DEV_NEED_QUIESCENT:
6761 			/* XXX: DEBUG for now */
6762 			qla83xx_idc_unlock(base_vha, 0);
6763 			msleep(1000);
6764 			qla83xx_idc_lock(base_vha, 0);
6765 			break;
6766 		case QLA8XXX_DEV_QUIESCENT:
6767 			/* XXX: DEBUG for now */
6768 			if (ha->flags.quiesce_owner)
6769 				goto exit;
6770 
6771 			qla83xx_idc_unlock(base_vha, 0);
6772 			msleep(1000);
6773 			qla83xx_idc_lock(base_vha, 0);
6774 			dev_init_timeout = jiffies +
6775 			    (ha->fcoe_dev_init_timeout * HZ);
6776 			break;
6777 		case QLA8XXX_DEV_FAILED:
6778 			if (ha->flags.nic_core_reset_owner)
6779 				qla83xx_idc_audit(base_vha,
6780 				    IDC_AUDIT_COMPLETION);
6781 			ha->flags.nic_core_reset_owner = 0;
6782 			__qla83xx_clear_drv_presence(base_vha);
6783 			qla83xx_idc_unlock(base_vha, 0);
6784 			qla8xxx_dev_failed_handler(base_vha);
6785 			rval = QLA_FUNCTION_FAILED;
6786 			qla83xx_idc_lock(base_vha, 0);
6787 			goto exit;
6788 		case QLA8XXX_BAD_VALUE:
6789 			qla83xx_idc_unlock(base_vha, 0);
6790 			msleep(1000);
6791 			qla83xx_idc_lock(base_vha, 0);
6792 			break;
6793 		default:
6794 			ql_log(ql_log_warn, base_vha, 0xb071,
6795 			    "Unknown Device State: %x.\n", dev_state);
6796 			qla83xx_idc_unlock(base_vha, 0);
6797 			qla8xxx_dev_failed_handler(base_vha);
6798 			rval = QLA_FUNCTION_FAILED;
6799 			qla83xx_idc_lock(base_vha, 0);
6800 			goto exit;
6801 		}
6802 	}
6803 
6804 exit:
6805 	return rval;
6806 }
6807 
6808 void
6809 qla2x00_disable_board_on_pci_error(struct work_struct *work)
6810 {
6811 	struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
6812 	    board_disable);
6813 	struct pci_dev *pdev = ha->pdev;
6814 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6815 
6816 	ql_log(ql_log_warn, base_vha, 0x015b,
6817 	    "Disabling adapter.\n");
6818 
6819 	if (!atomic_read(&pdev->enable_cnt)) {
6820 		ql_log(ql_log_info, base_vha, 0xfffc,
6821 		    "PCI device disabled, no action req for PCI error=%lx\n",
6822 		    base_vha->pci_flags);
6823 		return;
6824 	}
6825 
6826 	/*
6827 	 * if UNLOADING flag is already set, then continue unload,
6828 	 * where it was set first.
6829 	 */
6830 	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
6831 		return;
6832 
6833 	qla2x00_wait_for_sess_deletion(base_vha);
6834 
6835 	qla2x00_delete_all_vps(ha, base_vha);
6836 
6837 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
6838 
6839 	qla2x00_dfs_remove(base_vha);
6840 
6841 	qla84xx_put_chip(base_vha);
6842 
6843 	if (base_vha->timer_active)
6844 		qla2x00_stop_timer(base_vha);
6845 
6846 	base_vha->flags.online = 0;
6847 
6848 	qla2x00_destroy_deferred_work(ha);
6849 
6850 	/*
6851 	 * Do not try to stop beacon blink as it will issue a mailbox
6852 	 * command.
6853 	 */
6854 	qla2x00_free_sysfs_attr(base_vha, false);
6855 
6856 	fc_remove_host(base_vha->host);
6857 
6858 	scsi_remove_host(base_vha->host);
6859 
6860 	base_vha->flags.init_done = 0;
6861 	qla25xx_delete_queues(base_vha);
6862 	qla2x00_free_fcports(base_vha);
6863 	qla2x00_free_irqs(base_vha);
6864 	qla2x00_mem_free(ha);
6865 	qla82xx_md_free(base_vha);
6866 	qla2x00_free_queues(ha);
6867 
6868 	qla2x00_unmap_iobases(ha);
6869 
6870 	pci_release_selected_regions(ha->pdev, ha->bars);
6871 	pci_disable_device(pdev);
6872 
6873 	/*
6874 	 * Let qla2x00_remove_one cleanup qla_hw_data on device removal.
6875 	 */
6876 }
6877 
6878 /**************************************************************************
6879 * qla2x00_do_dpc
6880 *   This kernel thread is a task that is schedule by the interrupt handler
6881 *   to perform the background processing for interrupts.
6882 *
6883 * Notes:
6884 * This task always run in the context of a kernel thread.  It
6885 * is kick-off by the driver's detect code and starts up
6886 * up one per adapter. It immediately goes to sleep and waits for
6887 * some fibre event.  When either the interrupt handler or
6888 * the timer routine detects a event it will one of the task
6889 * bits then wake us up.
6890 **************************************************************************/
6891 static int
6892 qla2x00_do_dpc(void *data)
6893 {
6894 	scsi_qla_host_t *base_vha;
6895 	struct qla_hw_data *ha;
6896 	uint32_t online;
6897 	struct qla_qpair *qpair;
6898 
6899 	ha = (struct qla_hw_data *)data;
6900 	base_vha = pci_get_drvdata(ha->pdev);
6901 
6902 	set_user_nice(current, MIN_NICE);
6903 
6904 	set_current_state(TASK_INTERRUPTIBLE);
6905 	while (!kthread_should_stop()) {
6906 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
6907 		    "DPC handler sleeping.\n");
6908 
6909 		schedule();
6910 
6911 		if (test_and_clear_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags))
6912 			qla_pci_set_eeh_busy(base_vha);
6913 
6914 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
6915 			goto end_loop;
6916 
6917 		if (ha->flags.eeh_busy) {
6918 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
6919 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
6920 			goto end_loop;
6921 		}
6922 
6923 		ha->dpc_active = 1;
6924 
6925 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
6926 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
6927 		    base_vha->dpc_flags);
6928 
6929 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
6930 			break;
6931 
6932 		if (IS_P3P_TYPE(ha)) {
6933 			if (IS_QLA8044(ha)) {
6934 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6935 					&base_vha->dpc_flags)) {
6936 					qla8044_idc_lock(ha);
6937 					qla8044_wr_direct(base_vha,
6938 						QLA8044_CRB_DEV_STATE_INDEX,
6939 						QLA8XXX_DEV_FAILED);
6940 					qla8044_idc_unlock(ha);
6941 					ql_log(ql_log_info, base_vha, 0x4004,
6942 						"HW State: FAILED.\n");
6943 					qla8044_device_state_handler(base_vha);
6944 					continue;
6945 				}
6946 
6947 			} else {
6948 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6949 					&base_vha->dpc_flags)) {
6950 					qla82xx_idc_lock(ha);
6951 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6952 						QLA8XXX_DEV_FAILED);
6953 					qla82xx_idc_unlock(ha);
6954 					ql_log(ql_log_info, base_vha, 0x0151,
6955 						"HW State: FAILED.\n");
6956 					qla82xx_device_state_handler(base_vha);
6957 					continue;
6958 				}
6959 			}
6960 
6961 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
6962 				&base_vha->dpc_flags)) {
6963 
6964 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
6965 				    "FCoE context reset scheduled.\n");
6966 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
6967 					&base_vha->dpc_flags))) {
6968 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
6969 						/* FCoE-ctx reset failed.
6970 						 * Escalate to chip-reset
6971 						 */
6972 						set_bit(ISP_ABORT_NEEDED,
6973 							&base_vha->dpc_flags);
6974 					}
6975 					clear_bit(ABORT_ISP_ACTIVE,
6976 						&base_vha->dpc_flags);
6977 				}
6978 
6979 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
6980 				    "FCoE context reset end.\n");
6981 			}
6982 		} else if (IS_QLAFX00(ha)) {
6983 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
6984 				&base_vha->dpc_flags)) {
6985 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
6986 				    "Firmware Reset Recovery\n");
6987 				if (qlafx00_reset_initialize(base_vha)) {
6988 					/* Failed. Abort isp later. */
6989 					if (!test_bit(UNLOADING,
6990 					    &base_vha->dpc_flags)) {
6991 						set_bit(ISP_UNRECOVERABLE,
6992 						    &base_vha->dpc_flags);
6993 						ql_dbg(ql_dbg_dpc, base_vha,
6994 						    0x4021,
6995 						    "Reset Recovery Failed\n");
6996 					}
6997 				}
6998 			}
6999 
7000 			if (test_and_clear_bit(FX00_TARGET_SCAN,
7001 				&base_vha->dpc_flags)) {
7002 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
7003 				    "ISPFx00 Target Scan scheduled\n");
7004 				if (qlafx00_rescan_isp(base_vha)) {
7005 					if (!test_bit(UNLOADING,
7006 					    &base_vha->dpc_flags))
7007 						set_bit(ISP_UNRECOVERABLE,
7008 						    &base_vha->dpc_flags);
7009 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
7010 					    "ISPFx00 Target Scan Failed\n");
7011 				}
7012 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
7013 				    "ISPFx00 Target Scan End\n");
7014 			}
7015 			if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
7016 				&base_vha->dpc_flags)) {
7017 				ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
7018 				    "ISPFx00 Host Info resend scheduled\n");
7019 				qlafx00_fx_disc(base_vha,
7020 				    &base_vha->hw->mr.fcport,
7021 				    FXDISC_REG_HOST_INFO);
7022 			}
7023 		}
7024 
7025 		if (test_and_clear_bit(DETECT_SFP_CHANGE,
7026 		    &base_vha->dpc_flags)) {
7027 			/* Semantic:
7028 			 *  - NO-OP -- await next ISP-ABORT. Preferred method
7029 			 *             to minimize disruptions that will occur
7030 			 *             when a forced chip-reset occurs.
7031 			 *  - Force -- ISP-ABORT scheduled.
7032 			 */
7033 			/* set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); */
7034 		}
7035 
7036 		if (test_and_clear_bit
7037 		    (ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
7038 		    !test_bit(UNLOADING, &base_vha->dpc_flags)) {
7039 			bool do_reset = true;
7040 
7041 			switch (base_vha->qlini_mode) {
7042 			case QLA2XXX_INI_MODE_ENABLED:
7043 				break;
7044 			case QLA2XXX_INI_MODE_DISABLED:
7045 				if (!qla_tgt_mode_enabled(base_vha) &&
7046 				    !ha->flags.fw_started)
7047 					do_reset = false;
7048 				break;
7049 			case QLA2XXX_INI_MODE_DUAL:
7050 				if (!qla_dual_mode_enabled(base_vha) &&
7051 				    !ha->flags.fw_started)
7052 					do_reset = false;
7053 				break;
7054 			default:
7055 				break;
7056 			}
7057 
7058 			if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
7059 			    &base_vha->dpc_flags))) {
7060 				base_vha->flags.online = 1;
7061 				ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
7062 				    "ISP abort scheduled.\n");
7063 				if (ha->isp_ops->abort_isp(base_vha)) {
7064 					/* failed. retry later */
7065 					set_bit(ISP_ABORT_NEEDED,
7066 					    &base_vha->dpc_flags);
7067 				}
7068 				clear_bit(ABORT_ISP_ACTIVE,
7069 						&base_vha->dpc_flags);
7070 				ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
7071 				    "ISP abort end.\n");
7072 			}
7073 		}
7074 
7075 		if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags)) {
7076 			if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
7077 				qla24xx_process_purex_list
7078 					(&base_vha->purex_list);
7079 				clear_bit(PROCESS_PUREX_IOCB,
7080 				    &base_vha->dpc_flags);
7081 			}
7082 		}
7083 
7084 		if (IS_QLAFX00(ha))
7085 			goto loop_resync_check;
7086 
7087 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
7088 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
7089 			    "Quiescence mode scheduled.\n");
7090 			if (IS_P3P_TYPE(ha)) {
7091 				if (IS_QLA82XX(ha))
7092 					qla82xx_device_state_handler(base_vha);
7093 				if (IS_QLA8044(ha))
7094 					qla8044_device_state_handler(base_vha);
7095 				clear_bit(ISP_QUIESCE_NEEDED,
7096 				    &base_vha->dpc_flags);
7097 				if (!ha->flags.quiesce_owner) {
7098 					qla2x00_perform_loop_resync(base_vha);
7099 					if (IS_QLA82XX(ha)) {
7100 						qla82xx_idc_lock(ha);
7101 						qla82xx_clear_qsnt_ready(
7102 						    base_vha);
7103 						qla82xx_idc_unlock(ha);
7104 					} else if (IS_QLA8044(ha)) {
7105 						qla8044_idc_lock(ha);
7106 						qla8044_clear_qsnt_ready(
7107 						    base_vha);
7108 						qla8044_idc_unlock(ha);
7109 					}
7110 				}
7111 			} else {
7112 				clear_bit(ISP_QUIESCE_NEEDED,
7113 				    &base_vha->dpc_flags);
7114 				qla2x00_quiesce_io(base_vha);
7115 			}
7116 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
7117 			    "Quiescence mode end.\n");
7118 		}
7119 
7120 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
7121 				&base_vha->dpc_flags) &&
7122 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
7123 
7124 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
7125 			    "Reset marker scheduled.\n");
7126 			qla2x00_rst_aen(base_vha);
7127 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
7128 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
7129 			    "Reset marker end.\n");
7130 		}
7131 
7132 		/* Retry each device up to login retry count */
7133 		if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
7134 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
7135 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
7136 
7137 			if (!base_vha->relogin_jif ||
7138 			    time_after_eq(jiffies, base_vha->relogin_jif)) {
7139 				base_vha->relogin_jif = jiffies + HZ;
7140 				clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
7141 
7142 				ql_dbg(ql_dbg_disc, base_vha, 0x400d,
7143 				    "Relogin scheduled.\n");
7144 				qla24xx_post_relogin_work(base_vha);
7145 			}
7146 		}
7147 loop_resync_check:
7148 		if (!qla2x00_reset_active(base_vha) &&
7149 		    test_and_clear_bit(LOOP_RESYNC_NEEDED,
7150 		    &base_vha->dpc_flags)) {
7151 			/*
7152 			 * Allow abort_isp to complete before moving on to scanning.
7153 			 */
7154 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
7155 			    "Loop resync scheduled.\n");
7156 
7157 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
7158 			    &base_vha->dpc_flags))) {
7159 
7160 				qla2x00_loop_resync(base_vha);
7161 
7162 				clear_bit(LOOP_RESYNC_ACTIVE,
7163 						&base_vha->dpc_flags);
7164 			}
7165 
7166 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
7167 			    "Loop resync end.\n");
7168 		}
7169 
7170 		if (IS_QLAFX00(ha))
7171 			goto intr_on_check;
7172 
7173 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
7174 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
7175 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
7176 			qla2xxx_flash_npiv_conf(base_vha);
7177 		}
7178 
7179 intr_on_check:
7180 		if (!ha->interrupts_on)
7181 			ha->isp_ops->enable_intrs(ha);
7182 
7183 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
7184 					&base_vha->dpc_flags)) {
7185 			if (ha->beacon_blink_led == 1)
7186 				ha->isp_ops->beacon_blink(base_vha);
7187 		}
7188 
7189 		/* qpair online check */
7190 		if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
7191 		    &base_vha->dpc_flags)) {
7192 			if (ha->flags.eeh_busy ||
7193 			    ha->flags.pci_channel_io_perm_failure)
7194 				online = 0;
7195 			else
7196 				online = 1;
7197 
7198 			mutex_lock(&ha->mq_lock);
7199 			list_for_each_entry(qpair, &base_vha->qp_list,
7200 			    qp_list_elem)
7201 			qpair->online = online;
7202 			mutex_unlock(&ha->mq_lock);
7203 		}
7204 
7205 		if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
7206 				       &base_vha->dpc_flags)) {
7207 			u16 threshold = ha->nvme_last_rptd_aen + ha->last_zio_threshold;
7208 
7209 			if (threshold > ha->orig_fw_xcb_count)
7210 				threshold = ha->orig_fw_xcb_count;
7211 
7212 			ql_log(ql_log_info, base_vha, 0xffffff,
7213 			       "SET ZIO Activity exchange threshold to %d.\n",
7214 			       threshold);
7215 			if (qla27xx_set_zio_threshold(base_vha, threshold)) {
7216 				ql_log(ql_log_info, base_vha, 0xffffff,
7217 				       "Unable to SET ZIO Activity exchange threshold to %d.\n",
7218 				       threshold);
7219 			}
7220 		}
7221 
7222 		if (!IS_QLAFX00(ha))
7223 			qla2x00_do_dpc_all_vps(base_vha);
7224 
7225 		if (test_and_clear_bit(N2N_LINK_RESET,
7226 			&base_vha->dpc_flags)) {
7227 			qla2x00_lip_reset(base_vha);
7228 		}
7229 
7230 		ha->dpc_active = 0;
7231 end_loop:
7232 		set_current_state(TASK_INTERRUPTIBLE);
7233 	} /* End of while(1) */
7234 	__set_current_state(TASK_RUNNING);
7235 
7236 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
7237 	    "DPC handler exiting.\n");
7238 
7239 	/*
7240 	 * Make sure that nobody tries to wake us up again.
7241 	 */
7242 	ha->dpc_active = 0;
7243 
7244 	/* Cleanup any residual CTX SRBs. */
7245 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
7246 
7247 	return 0;
7248 }
7249 
7250 void
7251 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
7252 {
7253 	struct qla_hw_data *ha = vha->hw;
7254 	struct task_struct *t = ha->dpc_thread;
7255 
7256 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
7257 		wake_up_process(t);
7258 }
7259 
7260 /*
7261 *  qla2x00_rst_aen
7262 *      Processes asynchronous reset.
7263 *
7264 * Input:
7265 *      ha  = adapter block pointer.
7266 */
7267 static void
7268 qla2x00_rst_aen(scsi_qla_host_t *vha)
7269 {
7270 	if (vha->flags.online && !vha->flags.reset_active &&
7271 	    !atomic_read(&vha->loop_down_timer) &&
7272 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
7273 		do {
7274 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7275 
7276 			/*
7277 			 * Issue marker command only when we are going to start
7278 			 * the I/O.
7279 			 */
7280 			vha->marker_needed = 1;
7281 		} while (!atomic_read(&vha->loop_down_timer) &&
7282 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
7283 	}
7284 }
7285 
7286 static bool qla_do_heartbeat(struct scsi_qla_host *vha)
7287 {
7288 	struct qla_hw_data *ha = vha->hw;
7289 	u32 cmpl_cnt;
7290 	u16 i;
7291 	bool do_heartbeat = false;
7292 
7293 	/*
7294 	 * Allow do_heartbeat only if we don’t have any active interrupts,
7295 	 * but there are still IOs outstanding with firmware.
7296 	 */
7297 	cmpl_cnt = ha->base_qpair->cmd_completion_cnt;
7298 	if (cmpl_cnt == ha->base_qpair->prev_completion_cnt &&
7299 	    cmpl_cnt != ha->base_qpair->cmd_cnt) {
7300 		do_heartbeat = true;
7301 		goto skip;
7302 	}
7303 	ha->base_qpair->prev_completion_cnt = cmpl_cnt;
7304 
7305 	for (i = 0; i < ha->max_qpairs; i++) {
7306 		if (ha->queue_pair_map[i]) {
7307 			cmpl_cnt = ha->queue_pair_map[i]->cmd_completion_cnt;
7308 			if (cmpl_cnt == ha->queue_pair_map[i]->prev_completion_cnt &&
7309 			    cmpl_cnt != ha->queue_pair_map[i]->cmd_cnt) {
7310 				do_heartbeat = true;
7311 				break;
7312 			}
7313 			ha->queue_pair_map[i]->prev_completion_cnt = cmpl_cnt;
7314 		}
7315 	}
7316 
7317 skip:
7318 	return do_heartbeat;
7319 }
7320 
7321 static void qla_heart_beat(struct scsi_qla_host *vha, u16 dpc_started)
7322 {
7323 	struct qla_hw_data *ha = vha->hw;
7324 
7325 	if (vha->vp_idx)
7326 		return;
7327 
7328 	if (vha->hw->flags.eeh_busy || qla2x00_chip_is_down(vha))
7329 		return;
7330 
7331 	/*
7332 	 * dpc thread cannot run if heartbeat is running at the same time.
7333 	 * We also do not want to starve heartbeat task. Therefore, do
7334 	 * heartbeat task at least once every 5 seconds.
7335 	 */
7336 	if (dpc_started &&
7337 	    time_before(jiffies, ha->last_heartbeat_run_jiffies + 5 * HZ))
7338 		return;
7339 
7340 	if (qla_do_heartbeat(vha)) {
7341 		ha->last_heartbeat_run_jiffies = jiffies;
7342 		queue_work(ha->wq, &ha->heartbeat_work);
7343 	}
7344 }
7345 
7346 static void qla_wind_down_chip(scsi_qla_host_t *vha)
7347 {
7348 	struct qla_hw_data *ha = vha->hw;
7349 
7350 	if (!ha->flags.eeh_busy)
7351 		return;
7352 	if (ha->pci_error_state)
7353 		/* system is trying to recover */
7354 		return;
7355 
7356 	/*
7357 	 * Current system is not handling PCIE error.  At this point, this is
7358 	 * best effort to wind down the adapter.
7359 	 */
7360 	if (time_after_eq(jiffies, ha->eeh_jif + ql2xdelay_before_pci_error_handling * HZ) &&
7361 	    !ha->flags.eeh_flush) {
7362 		ql_log(ql_log_info, vha, 0x9009,
7363 		    "PCI Error detected, attempting to reset hardware.\n");
7364 
7365 		ha->isp_ops->reset_chip(vha);
7366 		ha->isp_ops->disable_intrs(ha);
7367 
7368 		ha->flags.eeh_flush = EEH_FLUSH_RDY;
7369 		ha->eeh_jif = jiffies;
7370 
7371 	} else if (ha->flags.eeh_flush == EEH_FLUSH_RDY &&
7372 	    time_after_eq(jiffies, ha->eeh_jif +  5 * HZ)) {
7373 		pci_clear_master(ha->pdev);
7374 
7375 		/* flush all command */
7376 		qla2x00_abort_isp_cleanup(vha);
7377 		ha->flags.eeh_flush = EEH_FLUSH_DONE;
7378 
7379 		ql_log(ql_log_info, vha, 0x900a,
7380 		    "PCI Error handling complete, all IOs aborted.\n");
7381 	}
7382 }
7383 
7384 /**************************************************************************
7385 *   qla2x00_timer
7386 *
7387 * Description:
7388 *   One second timer
7389 *
7390 * Context: Interrupt
7391 ***************************************************************************/
7392 void
7393 qla2x00_timer(struct timer_list *t)
7394 {
7395 	scsi_qla_host_t *vha = from_timer(vha, t, timer);
7396 	unsigned long	cpu_flags = 0;
7397 	int		start_dpc = 0;
7398 	int		index;
7399 	srb_t		*sp;
7400 	uint16_t        w;
7401 	struct qla_hw_data *ha = vha->hw;
7402 	struct req_que *req;
7403 	unsigned long flags;
7404 	fc_port_t *fcport = NULL;
7405 
7406 	if (ha->flags.eeh_busy) {
7407 		qla_wind_down_chip(vha);
7408 
7409 		ql_dbg(ql_dbg_timer, vha, 0x6000,
7410 		    "EEH = %d, restarting timer.\n",
7411 		    ha->flags.eeh_busy);
7412 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
7413 		return;
7414 	}
7415 
7416 	/*
7417 	 * Hardware read to raise pending EEH errors during mailbox waits. If
7418 	 * the read returns -1 then disable the board.
7419 	 */
7420 	if (!pci_channel_offline(ha->pdev)) {
7421 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
7422 		qla2x00_check_reg16_for_disconnect(vha, w);
7423 	}
7424 
7425 	/* Make sure qla82xx_watchdog is run only for physical port */
7426 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
7427 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
7428 			start_dpc++;
7429 		if (IS_QLA82XX(ha))
7430 			qla82xx_watchdog(vha);
7431 		else if (IS_QLA8044(ha))
7432 			qla8044_watchdog(vha);
7433 	}
7434 
7435 	if (!vha->vp_idx && IS_QLAFX00(ha))
7436 		qlafx00_timer_routine(vha);
7437 
7438 	if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7439 		vha->link_down_time++;
7440 
7441 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
7442 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
7443 		if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
7444 			fcport->tgt_link_down_time++;
7445 	}
7446 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
7447 
7448 	/* Loop down handler. */
7449 	if (atomic_read(&vha->loop_down_timer) > 0 &&
7450 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
7451 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
7452 		&& vha->flags.online) {
7453 
7454 		if (atomic_read(&vha->loop_down_timer) ==
7455 		    vha->loop_down_abort_time) {
7456 
7457 			ql_log(ql_log_info, vha, 0x6008,
7458 			    "Loop down - aborting the queues before time expires.\n");
7459 
7460 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
7461 				atomic_set(&vha->loop_state, LOOP_DEAD);
7462 
7463 			/*
7464 			 * Schedule an ISP abort to return any FCP2-device
7465 			 * commands.
7466 			 */
7467 			/* NPIV - scan physical port only */
7468 			if (!vha->vp_idx) {
7469 				spin_lock_irqsave(&ha->hardware_lock,
7470 				    cpu_flags);
7471 				req = ha->req_q_map[0];
7472 				for (index = 1;
7473 				    index < req->num_outstanding_cmds;
7474 				    index++) {
7475 					fc_port_t *sfcp;
7476 
7477 					sp = req->outstanding_cmds[index];
7478 					if (!sp)
7479 						continue;
7480 					if (sp->cmd_type != TYPE_SRB)
7481 						continue;
7482 					if (sp->type != SRB_SCSI_CMD)
7483 						continue;
7484 					sfcp = sp->fcport;
7485 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
7486 						continue;
7487 
7488 					if (IS_QLA82XX(ha))
7489 						set_bit(FCOE_CTX_RESET_NEEDED,
7490 							&vha->dpc_flags);
7491 					else
7492 						set_bit(ISP_ABORT_NEEDED,
7493 							&vha->dpc_flags);
7494 					break;
7495 				}
7496 				spin_unlock_irqrestore(&ha->hardware_lock,
7497 								cpu_flags);
7498 			}
7499 			start_dpc++;
7500 		}
7501 
7502 		/* if the loop has been down for 4 minutes, reinit adapter */
7503 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
7504 			if (!(vha->device_flags & DFLG_NO_CABLE) && !vha->vp_idx) {
7505 				ql_log(ql_log_warn, vha, 0x6009,
7506 				    "Loop down - aborting ISP.\n");
7507 
7508 				if (IS_QLA82XX(ha))
7509 					set_bit(FCOE_CTX_RESET_NEEDED,
7510 						&vha->dpc_flags);
7511 				else
7512 					set_bit(ISP_ABORT_NEEDED,
7513 						&vha->dpc_flags);
7514 			}
7515 		}
7516 		ql_dbg(ql_dbg_timer, vha, 0x600a,
7517 		    "Loop down - seconds remaining %d.\n",
7518 		    atomic_read(&vha->loop_down_timer));
7519 	}
7520 	/* Check if beacon LED needs to be blinked for physical host only */
7521 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
7522 		/* There is no beacon_blink function for ISP82xx */
7523 		if (!IS_P3P_TYPE(ha)) {
7524 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
7525 			start_dpc++;
7526 		}
7527 	}
7528 
7529 	/* check if edif running */
7530 	if (vha->hw->flags.edif_enabled)
7531 		qla_edif_timer(vha);
7532 
7533 	/* Process any deferred work. */
7534 	if (!list_empty(&vha->work_list)) {
7535 		unsigned long flags;
7536 		bool q = false;
7537 
7538 		spin_lock_irqsave(&vha->work_lock, flags);
7539 		if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
7540 			q = true;
7541 		spin_unlock_irqrestore(&vha->work_lock, flags);
7542 		if (q)
7543 			queue_work(vha->hw->wq, &vha->iocb_work);
7544 	}
7545 
7546 	/*
7547 	 * FC-NVME
7548 	 * see if the active AEN count has changed from what was last reported.
7549 	 */
7550 	index = atomic_read(&ha->nvme_active_aen_cnt);
7551 	if (!vha->vp_idx &&
7552 	    (index != ha->nvme_last_rptd_aen) &&
7553 	    ha->zio_mode == QLA_ZIO_MODE_6 &&
7554 	    !ha->flags.host_shutting_down) {
7555 		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
7556 		ql_log(ql_log_info, vha, 0x3002,
7557 		    "nvme: Sched: Set ZIO exchange threshold to %d.\n",
7558 		    ha->nvme_last_rptd_aen);
7559 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7560 		start_dpc++;
7561 	}
7562 
7563 	if (!vha->vp_idx &&
7564 	    atomic_read(&ha->zio_threshold) != ha->last_zio_threshold &&
7565 	    IS_ZIO_THRESHOLD_CAPABLE(ha)) {
7566 		ql_log(ql_log_info, vha, 0x3002,
7567 		    "Sched: Set ZIO exchange threshold to %d.\n",
7568 		    ha->last_zio_threshold);
7569 		ha->last_zio_threshold = atomic_read(&ha->zio_threshold);
7570 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
7571 		start_dpc++;
7572 	}
7573 	qla_adjust_buf(vha);
7574 
7575 	/* borrowing w to signify dpc will run */
7576 	w = 0;
7577 	/* Schedule the DPC routine if needed */
7578 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
7579 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
7580 	    start_dpc ||
7581 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
7582 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
7583 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
7584 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
7585 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
7586 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
7587 	    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags))) {
7588 		ql_dbg(ql_dbg_timer, vha, 0x600b,
7589 		    "isp_abort_needed=%d loop_resync_needed=%d "
7590 		    "start_dpc=%d reset_marker_needed=%d",
7591 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
7592 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
7593 		    start_dpc, test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
7594 		ql_dbg(ql_dbg_timer, vha, 0x600c,
7595 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
7596 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
7597 		    "relogin_needed=%d, Process_purex_iocb=%d.\n",
7598 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
7599 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
7600 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
7601 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
7602 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
7603 		    test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags));
7604 		qla2xxx_wake_dpc(vha);
7605 		w = 1;
7606 	}
7607 
7608 	qla_heart_beat(vha, w);
7609 
7610 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
7611 }
7612 
7613 /* Firmware interface routines. */
7614 
7615 #define FW_ISP21XX	0
7616 #define FW_ISP22XX	1
7617 #define FW_ISP2300	2
7618 #define FW_ISP2322	3
7619 #define FW_ISP24XX	4
7620 #define FW_ISP25XX	5
7621 #define FW_ISP81XX	6
7622 #define FW_ISP82XX	7
7623 #define FW_ISP2031	8
7624 #define FW_ISP8031	9
7625 #define FW_ISP27XX	10
7626 #define FW_ISP28XX	11
7627 
7628 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
7629 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
7630 #define FW_FILE_ISP2300	"ql2300_fw.bin"
7631 #define FW_FILE_ISP2322	"ql2322_fw.bin"
7632 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
7633 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
7634 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
7635 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
7636 #define FW_FILE_ISP2031	"ql2600_fw.bin"
7637 #define FW_FILE_ISP8031	"ql8300_fw.bin"
7638 #define FW_FILE_ISP27XX	"ql2700_fw.bin"
7639 #define FW_FILE_ISP28XX	"ql2800_fw.bin"
7640 
7641 
7642 static DEFINE_MUTEX(qla_fw_lock);
7643 
7644 static struct fw_blob qla_fw_blobs[] = {
7645 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
7646 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
7647 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
7648 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
7649 	{ .name = FW_FILE_ISP24XX, },
7650 	{ .name = FW_FILE_ISP25XX, },
7651 	{ .name = FW_FILE_ISP81XX, },
7652 	{ .name = FW_FILE_ISP82XX, },
7653 	{ .name = FW_FILE_ISP2031, },
7654 	{ .name = FW_FILE_ISP8031, },
7655 	{ .name = FW_FILE_ISP27XX, },
7656 	{ .name = FW_FILE_ISP28XX, },
7657 	{ .name = NULL, },
7658 };
7659 
7660 struct fw_blob *
7661 qla2x00_request_firmware(scsi_qla_host_t *vha)
7662 {
7663 	struct qla_hw_data *ha = vha->hw;
7664 	struct fw_blob *blob;
7665 
7666 	if (IS_QLA2100(ha)) {
7667 		blob = &qla_fw_blobs[FW_ISP21XX];
7668 	} else if (IS_QLA2200(ha)) {
7669 		blob = &qla_fw_blobs[FW_ISP22XX];
7670 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
7671 		blob = &qla_fw_blobs[FW_ISP2300];
7672 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
7673 		blob = &qla_fw_blobs[FW_ISP2322];
7674 	} else if (IS_QLA24XX_TYPE(ha)) {
7675 		blob = &qla_fw_blobs[FW_ISP24XX];
7676 	} else if (IS_QLA25XX(ha)) {
7677 		blob = &qla_fw_blobs[FW_ISP25XX];
7678 	} else if (IS_QLA81XX(ha)) {
7679 		blob = &qla_fw_blobs[FW_ISP81XX];
7680 	} else if (IS_QLA82XX(ha)) {
7681 		blob = &qla_fw_blobs[FW_ISP82XX];
7682 	} else if (IS_QLA2031(ha)) {
7683 		blob = &qla_fw_blobs[FW_ISP2031];
7684 	} else if (IS_QLA8031(ha)) {
7685 		blob = &qla_fw_blobs[FW_ISP8031];
7686 	} else if (IS_QLA27XX(ha)) {
7687 		blob = &qla_fw_blobs[FW_ISP27XX];
7688 	} else if (IS_QLA28XX(ha)) {
7689 		blob = &qla_fw_blobs[FW_ISP28XX];
7690 	} else {
7691 		return NULL;
7692 	}
7693 
7694 	if (!blob->name)
7695 		return NULL;
7696 
7697 	mutex_lock(&qla_fw_lock);
7698 	if (blob->fw)
7699 		goto out;
7700 
7701 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
7702 		ql_log(ql_log_warn, vha, 0x0063,
7703 		    "Failed to load firmware image (%s).\n", blob->name);
7704 		blob->fw = NULL;
7705 		blob = NULL;
7706 	}
7707 
7708 out:
7709 	mutex_unlock(&qla_fw_lock);
7710 	return blob;
7711 }
7712 
7713 static void
7714 qla2x00_release_firmware(void)
7715 {
7716 	struct fw_blob *blob;
7717 
7718 	mutex_lock(&qla_fw_lock);
7719 	for (blob = qla_fw_blobs; blob->name; blob++)
7720 		release_firmware(blob->fw);
7721 	mutex_unlock(&qla_fw_lock);
7722 }
7723 
7724 static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
7725 {
7726 	struct qla_hw_data *ha = vha->hw;
7727 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
7728 	struct qla_qpair *qpair = NULL;
7729 	struct scsi_qla_host *vp, *tvp;
7730 	fc_port_t *fcport;
7731 	int i;
7732 	unsigned long flags;
7733 
7734 	ql_dbg(ql_dbg_aer, vha, 0x9000,
7735 	       "%s\n", __func__);
7736 	ha->chip_reset++;
7737 
7738 	ha->base_qpair->chip_reset = ha->chip_reset;
7739 	for (i = 0; i < ha->max_qpairs; i++) {
7740 		if (ha->queue_pair_map[i])
7741 			ha->queue_pair_map[i]->chip_reset =
7742 			    ha->base_qpair->chip_reset;
7743 	}
7744 
7745 	/*
7746 	 * purge mailbox might take a while. Slot Reset/chip reset
7747 	 * will take care of the purge
7748 	 */
7749 
7750 	mutex_lock(&ha->mq_lock);
7751 	ha->base_qpair->online = 0;
7752 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7753 		qpair->online = 0;
7754 	wmb();
7755 	mutex_unlock(&ha->mq_lock);
7756 
7757 	qla2x00_mark_all_devices_lost(vha);
7758 
7759 	spin_lock_irqsave(&ha->vport_slock, flags);
7760 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7761 		atomic_inc(&vp->vref_count);
7762 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7763 		qla2x00_mark_all_devices_lost(vp);
7764 		spin_lock_irqsave(&ha->vport_slock, flags);
7765 		atomic_dec(&vp->vref_count);
7766 	}
7767 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7768 
7769 	/* Clear all async request states across all VPs. */
7770 	list_for_each_entry(fcport, &vha->vp_fcports, list)
7771 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7772 
7773 	spin_lock_irqsave(&ha->vport_slock, flags);
7774 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7775 		atomic_inc(&vp->vref_count);
7776 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7777 		list_for_each_entry(fcport, &vp->vp_fcports, list)
7778 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7779 		spin_lock_irqsave(&ha->vport_slock, flags);
7780 		atomic_dec(&vp->vref_count);
7781 	}
7782 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7783 }
7784 
7785 
7786 static pci_ers_result_t
7787 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7788 {
7789 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
7790 	struct qla_hw_data *ha = vha->hw;
7791 	pci_ers_result_t ret = PCI_ERS_RESULT_NEED_RESET;
7792 
7793 	ql_log(ql_log_warn, vha, 0x9000,
7794 	       "PCI error detected, state %x.\n", state);
7795 	ha->pci_error_state = QLA_PCI_ERR_DETECTED;
7796 
7797 	if (!atomic_read(&pdev->enable_cnt)) {
7798 		ql_log(ql_log_info, vha, 0xffff,
7799 			"PCI device is disabled,state %x\n", state);
7800 		ret = PCI_ERS_RESULT_NEED_RESET;
7801 		goto out;
7802 	}
7803 
7804 	switch (state) {
7805 	case pci_channel_io_normal:
7806 		qla_pci_set_eeh_busy(vha);
7807 		if (ql2xmqsupport || ql2xnvmeenable) {
7808 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7809 			qla2xxx_wake_dpc(vha);
7810 		}
7811 		ret = PCI_ERS_RESULT_CAN_RECOVER;
7812 		break;
7813 	case pci_channel_io_frozen:
7814 		qla_pci_set_eeh_busy(vha);
7815 		ret = PCI_ERS_RESULT_NEED_RESET;
7816 		break;
7817 	case pci_channel_io_perm_failure:
7818 		ha->flags.pci_channel_io_perm_failure = 1;
7819 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
7820 		if (ql2xmqsupport || ql2xnvmeenable) {
7821 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
7822 			qla2xxx_wake_dpc(vha);
7823 		}
7824 		ret = PCI_ERS_RESULT_DISCONNECT;
7825 	}
7826 out:
7827 	ql_dbg(ql_dbg_aer, vha, 0x600d,
7828 	       "PCI error detected returning [%x].\n", ret);
7829 	return ret;
7830 }
7831 
7832 static pci_ers_result_t
7833 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
7834 {
7835 	int risc_paused = 0;
7836 	uint32_t stat;
7837 	unsigned long flags;
7838 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7839 	struct qla_hw_data *ha = base_vha->hw;
7840 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7841 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
7842 
7843 	ql_log(ql_log_warn, base_vha, 0x9000,
7844 	       "mmio enabled\n");
7845 
7846 	ha->pci_error_state = QLA_PCI_MMIO_ENABLED;
7847 
7848 	if (IS_QLA82XX(ha))
7849 		return PCI_ERS_RESULT_RECOVERED;
7850 
7851 	if (qla2x00_isp_reg_stat(ha)) {
7852 		ql_log(ql_log_info, base_vha, 0x803f,
7853 		    "During mmio enabled, PCI/Register disconnect still detected.\n");
7854 		goto out;
7855 	}
7856 
7857 	spin_lock_irqsave(&ha->hardware_lock, flags);
7858 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
7859 		stat = rd_reg_word(&reg->hccr);
7860 		if (stat & HCCR_RISC_PAUSE)
7861 			risc_paused = 1;
7862 	} else if (IS_QLA23XX(ha)) {
7863 		stat = rd_reg_dword(&reg->u.isp2300.host_status);
7864 		if (stat & HSR_RISC_PAUSED)
7865 			risc_paused = 1;
7866 	} else if (IS_FWI2_CAPABLE(ha)) {
7867 		stat = rd_reg_dword(&reg24->host_status);
7868 		if (stat & HSRX_RISC_PAUSED)
7869 			risc_paused = 1;
7870 	}
7871 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7872 
7873 	if (risc_paused) {
7874 		ql_log(ql_log_info, base_vha, 0x9003,
7875 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
7876 		qla2xxx_dump_fw(base_vha);
7877 	}
7878 out:
7879 	/* set PCI_ERS_RESULT_NEED_RESET to trigger call to qla2xxx_pci_slot_reset */
7880 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7881 	       "mmio enabled returning.\n");
7882 	return PCI_ERS_RESULT_NEED_RESET;
7883 }
7884 
7885 static pci_ers_result_t
7886 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
7887 {
7888 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
7889 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7890 	struct qla_hw_data *ha = base_vha->hw;
7891 	int rc;
7892 	struct qla_qpair *qpair = NULL;
7893 
7894 	ql_log(ql_log_warn, base_vha, 0x9004,
7895 	       "Slot Reset.\n");
7896 
7897 	ha->pci_error_state = QLA_PCI_SLOT_RESET;
7898 	/* Workaround: qla2xxx driver which access hardware earlier
7899 	 * needs error state to be pci_channel_io_online.
7900 	 * Otherwise mailbox command timesout.
7901 	 */
7902 	pdev->error_state = pci_channel_io_normal;
7903 
7904 	pci_restore_state(pdev);
7905 
7906 	/* pci_restore_state() clears the saved_state flag of the device
7907 	 * save restored state which resets saved_state flag
7908 	 */
7909 	pci_save_state(pdev);
7910 
7911 	if (ha->mem_only)
7912 		rc = pci_enable_device_mem(pdev);
7913 	else
7914 		rc = pci_enable_device(pdev);
7915 
7916 	if (rc) {
7917 		ql_log(ql_log_warn, base_vha, 0x9005,
7918 		    "Can't re-enable PCI device after reset.\n");
7919 		goto exit_slot_reset;
7920 	}
7921 
7922 
7923 	if (ha->isp_ops->pci_config(base_vha))
7924 		goto exit_slot_reset;
7925 
7926 	mutex_lock(&ha->mq_lock);
7927 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7928 		qpair->online = 1;
7929 	mutex_unlock(&ha->mq_lock);
7930 
7931 	ha->flags.eeh_busy = 0;
7932 	base_vha->flags.online = 1;
7933 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7934 	ha->isp_ops->abort_isp(base_vha);
7935 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7936 
7937 	if (qla2x00_isp_reg_stat(ha)) {
7938 		ha->flags.eeh_busy = 1;
7939 		qla_pci_error_cleanup(base_vha);
7940 		ql_log(ql_log_warn, base_vha, 0x9005,
7941 		       "Device unable to recover from PCI error.\n");
7942 	} else {
7943 		ret =  PCI_ERS_RESULT_RECOVERED;
7944 	}
7945 
7946 exit_slot_reset:
7947 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
7948 	    "Slot Reset returning %x.\n", ret);
7949 
7950 	return ret;
7951 }
7952 
7953 static void
7954 qla2xxx_pci_resume(struct pci_dev *pdev)
7955 {
7956 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7957 	struct qla_hw_data *ha = base_vha->hw;
7958 	int ret;
7959 
7960 	ql_log(ql_log_warn, base_vha, 0x900f,
7961 	       "Pci Resume.\n");
7962 
7963 
7964 	ret = qla2x00_wait_for_hba_online(base_vha);
7965 	if (ret != QLA_SUCCESS) {
7966 		ql_log(ql_log_fatal, base_vha, 0x9002,
7967 		    "The device failed to resume I/O from slot/link_reset.\n");
7968 	}
7969 	ha->pci_error_state = QLA_PCI_RESUME;
7970 	ql_dbg(ql_dbg_aer, base_vha, 0x600d,
7971 	       "Pci Resume returning.\n");
7972 }
7973 
7974 void qla_pci_set_eeh_busy(struct scsi_qla_host *vha)
7975 {
7976 	struct qla_hw_data *ha = vha->hw;
7977 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7978 	bool do_cleanup = false;
7979 	unsigned long flags;
7980 
7981 	if (ha->flags.eeh_busy)
7982 		return;
7983 
7984 	spin_lock_irqsave(&base_vha->work_lock, flags);
7985 	if (!ha->flags.eeh_busy) {
7986 		ha->eeh_jif = jiffies;
7987 		ha->flags.eeh_flush = 0;
7988 
7989 		ha->flags.eeh_busy = 1;
7990 		do_cleanup = true;
7991 	}
7992 	spin_unlock_irqrestore(&base_vha->work_lock, flags);
7993 
7994 	if (do_cleanup)
7995 		qla_pci_error_cleanup(base_vha);
7996 }
7997 
7998 /*
7999  * this routine will schedule a task to pause IO from interrupt context
8000  * if caller sees a PCIE error event (register read = 0xf's)
8001  */
8002 void qla_schedule_eeh_work(struct scsi_qla_host *vha)
8003 {
8004 	struct qla_hw_data *ha = vha->hw;
8005 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8006 
8007 	if (ha->flags.eeh_busy)
8008 		return;
8009 
8010 	set_bit(DO_EEH_RECOVERY, &base_vha->dpc_flags);
8011 	qla2xxx_wake_dpc(base_vha);
8012 }
8013 
8014 static void
8015 qla_pci_reset_prepare(struct pci_dev *pdev)
8016 {
8017 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
8018 	struct qla_hw_data *ha = base_vha->hw;
8019 	struct qla_qpair *qpair;
8020 
8021 	ql_log(ql_log_warn, base_vha, 0xffff,
8022 	    "%s.\n", __func__);
8023 
8024 	/*
8025 	 * PCI FLR/function reset is about to reset the
8026 	 * slot. Stop the chip to stop all DMA access.
8027 	 * It is assumed that pci_reset_done will be called
8028 	 * after FLR to resume Chip operation.
8029 	 */
8030 	ha->flags.eeh_busy = 1;
8031 	mutex_lock(&ha->mq_lock);
8032 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
8033 		qpair->online = 0;
8034 	mutex_unlock(&ha->mq_lock);
8035 
8036 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
8037 	qla2x00_abort_isp_cleanup(base_vha);
8038 	qla2x00_abort_all_cmds(base_vha, DID_RESET << 16);
8039 }
8040 
8041 static void
8042 qla_pci_reset_done(struct pci_dev *pdev)
8043 {
8044 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
8045 	struct qla_hw_data *ha = base_vha->hw;
8046 	struct qla_qpair *qpair;
8047 
8048 	ql_log(ql_log_warn, base_vha, 0xffff,
8049 	    "%s.\n", __func__);
8050 
8051 	/*
8052 	 * FLR just completed by PCI layer. Resume adapter
8053 	 */
8054 	ha->flags.eeh_busy = 0;
8055 	mutex_lock(&ha->mq_lock);
8056 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
8057 		qpair->online = 1;
8058 	mutex_unlock(&ha->mq_lock);
8059 
8060 	base_vha->flags.online = 1;
8061 	ha->isp_ops->abort_isp(base_vha);
8062 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
8063 }
8064 
8065 static void qla2xxx_map_queues(struct Scsi_Host *shost)
8066 {
8067 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
8068 	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
8069 
8070 	if (USER_CTRL_IRQ(vha->hw) || !vha->hw->mqiobase)
8071 		blk_mq_map_queues(qmap);
8072 	else
8073 		blk_mq_pci_map_queues(qmap, vha->hw->pdev, vha->irq_offset);
8074 }
8075 
8076 struct scsi_host_template qla2xxx_driver_template = {
8077 	.module			= THIS_MODULE,
8078 	.name			= QLA2XXX_DRIVER_NAME,
8079 	.queuecommand		= qla2xxx_queuecommand,
8080 
8081 	.eh_timed_out		= fc_eh_timed_out,
8082 	.eh_abort_handler	= qla2xxx_eh_abort,
8083 	.eh_should_retry_cmd	= fc_eh_should_retry_cmd,
8084 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
8085 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
8086 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
8087 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
8088 
8089 	.slave_configure	= qla2xxx_slave_configure,
8090 
8091 	.slave_alloc		= qla2xxx_slave_alloc,
8092 	.slave_destroy		= qla2xxx_slave_destroy,
8093 	.scan_finished		= qla2xxx_scan_finished,
8094 	.scan_start		= qla2xxx_scan_start,
8095 	.change_queue_depth	= scsi_change_queue_depth,
8096 	.map_queues             = qla2xxx_map_queues,
8097 	.this_id		= -1,
8098 	.cmd_per_lun		= 3,
8099 	.sg_tablesize		= SG_ALL,
8100 
8101 	.max_sectors		= 0xFFFF,
8102 	.shost_groups		= qla2x00_host_groups,
8103 
8104 	.supported_mode		= MODE_INITIATOR,
8105 	.track_queue_depth	= 1,
8106 	.cmd_size		= sizeof(srb_t),
8107 };
8108 
8109 static const struct pci_error_handlers qla2xxx_err_handler = {
8110 	.error_detected = qla2xxx_pci_error_detected,
8111 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
8112 	.slot_reset = qla2xxx_pci_slot_reset,
8113 	.resume = qla2xxx_pci_resume,
8114 	.reset_prepare = qla_pci_reset_prepare,
8115 	.reset_done = qla_pci_reset_done,
8116 };
8117 
8118 static struct pci_device_id qla2xxx_pci_tbl[] = {
8119 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
8120 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
8121 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
8122 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
8123 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
8124 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
8125 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
8126 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
8127 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
8128 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
8129 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
8130 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
8131 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
8132 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
8133 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
8134 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
8135 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
8136 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
8137 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
8138 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
8139 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
8140 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
8141 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2061) },
8142 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2081) },
8143 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2281) },
8144 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2089) },
8145 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2289) },
8146 	{ 0 },
8147 };
8148 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
8149 
8150 static struct pci_driver qla2xxx_pci_driver = {
8151 	.name		= QLA2XXX_DRIVER_NAME,
8152 	.id_table	= qla2xxx_pci_tbl,
8153 	.probe		= qla2x00_probe_one,
8154 	.remove		= qla2x00_remove_one,
8155 	.shutdown	= qla2x00_shutdown,
8156 	.err_handler	= &qla2xxx_err_handler,
8157 };
8158 
8159 static const struct file_operations apidev_fops = {
8160 	.owner = THIS_MODULE,
8161 	.llseek = noop_llseek,
8162 };
8163 
8164 /**
8165  * qla2x00_module_init - Module initialization.
8166  **/
8167 static int __init
8168 qla2x00_module_init(void)
8169 {
8170 	int ret = 0;
8171 
8172 	BUILD_BUG_ON(sizeof(cmd_a64_entry_t) != 64);
8173 	BUILD_BUG_ON(sizeof(cmd_entry_t) != 64);
8174 	BUILD_BUG_ON(sizeof(cont_a64_entry_t) != 64);
8175 	BUILD_BUG_ON(sizeof(cont_entry_t) != 64);
8176 	BUILD_BUG_ON(sizeof(init_cb_t) != 96);
8177 	BUILD_BUG_ON(sizeof(mrk_entry_t) != 64);
8178 	BUILD_BUG_ON(sizeof(ms_iocb_entry_t) != 64);
8179 	BUILD_BUG_ON(sizeof(request_t) != 64);
8180 	BUILD_BUG_ON(sizeof(struct abort_entry_24xx) != 64);
8181 	BUILD_BUG_ON(sizeof(struct abort_iocb_entry_fx00) != 64);
8182 	BUILD_BUG_ON(sizeof(struct abts_entry_24xx) != 64);
8183 	BUILD_BUG_ON(sizeof(struct access_chip_84xx) != 64);
8184 	BUILD_BUG_ON(sizeof(struct access_chip_rsp_84xx) != 64);
8185 	BUILD_BUG_ON(sizeof(struct cmd_bidir) != 64);
8186 	BUILD_BUG_ON(sizeof(struct cmd_nvme) != 64);
8187 	BUILD_BUG_ON(sizeof(struct cmd_type_6) != 64);
8188 	BUILD_BUG_ON(sizeof(struct cmd_type_7) != 64);
8189 	BUILD_BUG_ON(sizeof(struct cmd_type_7_fx00) != 64);
8190 	BUILD_BUG_ON(sizeof(struct cmd_type_crc_2) != 64);
8191 	BUILD_BUG_ON(sizeof(struct ct_entry_24xx) != 64);
8192 	BUILD_BUG_ON(sizeof(struct ct_fdmi1_hba_attributes) != 2604);
8193 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_hba_attributes) != 4424);
8194 	BUILD_BUG_ON(sizeof(struct ct_fdmi2_port_attributes) != 4164);
8195 	BUILD_BUG_ON(sizeof(struct ct_fdmi_hba_attr) != 260);
8196 	BUILD_BUG_ON(sizeof(struct ct_fdmi_port_attr) != 260);
8197 	BUILD_BUG_ON(sizeof(struct ct_rsp_hdr) != 16);
8198 	BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
8199 	BUILD_BUG_ON(sizeof(struct device_reg_24xx) != 256);
8200 	BUILD_BUG_ON(sizeof(struct device_reg_25xxmq) != 24);
8201 	BUILD_BUG_ON(sizeof(struct device_reg_2xxx) != 256);
8202 	BUILD_BUG_ON(sizeof(struct device_reg_82xx) != 1288);
8203 	BUILD_BUG_ON(sizeof(struct device_reg_fx00) != 216);
8204 	BUILD_BUG_ON(sizeof(struct els_entry_24xx) != 64);
8205 	BUILD_BUG_ON(sizeof(struct els_sts_entry_24xx) != 64);
8206 	BUILD_BUG_ON(sizeof(struct fxdisc_entry_fx00) != 64);
8207 	BUILD_BUG_ON(sizeof(struct imm_ntfy_from_isp) != 64);
8208 	BUILD_BUG_ON(sizeof(struct init_cb_24xx) != 128);
8209 	BUILD_BUG_ON(sizeof(struct init_cb_81xx) != 128);
8210 	BUILD_BUG_ON(sizeof(struct logio_entry_24xx) != 64);
8211 	BUILD_BUG_ON(sizeof(struct mbx_entry) != 64);
8212 	BUILD_BUG_ON(sizeof(struct mid_init_cb_24xx) != 5252);
8213 	BUILD_BUG_ON(sizeof(struct mrk_entry_24xx) != 64);
8214 	BUILD_BUG_ON(sizeof(struct nvram_24xx) != 512);
8215 	BUILD_BUG_ON(sizeof(struct nvram_81xx) != 512);
8216 	BUILD_BUG_ON(sizeof(struct pt_ls4_request) != 64);
8217 	BUILD_BUG_ON(sizeof(struct pt_ls4_rx_unsol) != 64);
8218 	BUILD_BUG_ON(sizeof(struct purex_entry_24xx) != 64);
8219 	BUILD_BUG_ON(sizeof(struct qla2100_fw_dump) != 123634);
8220 	BUILD_BUG_ON(sizeof(struct qla2300_fw_dump) != 136100);
8221 	BUILD_BUG_ON(sizeof(struct qla24xx_fw_dump) != 37976);
8222 	BUILD_BUG_ON(sizeof(struct qla25xx_fw_dump) != 39228);
8223 	BUILD_BUG_ON(sizeof(struct qla2xxx_fce_chain) != 52);
8224 	BUILD_BUG_ON(sizeof(struct qla2xxx_fw_dump) != 136172);
8225 	BUILD_BUG_ON(sizeof(struct qla2xxx_mq_chain) != 524);
8226 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_chain) != 8);
8227 	BUILD_BUG_ON(sizeof(struct qla2xxx_mqueue_header) != 12);
8228 	BUILD_BUG_ON(sizeof(struct qla2xxx_offld_chain) != 24);
8229 	BUILD_BUG_ON(sizeof(struct qla81xx_fw_dump) != 39420);
8230 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_data_desc) != 28);
8231 	BUILD_BUG_ON(sizeof(struct qla82xx_uri_table_desc) != 32);
8232 	BUILD_BUG_ON(sizeof(struct qla83xx_fw_dump) != 51196);
8233 	BUILD_BUG_ON(sizeof(struct qla_fcp_prio_cfg) != FCP_PRIO_CFG_SIZE);
8234 	BUILD_BUG_ON(sizeof(struct qla_fdt_layout) != 128);
8235 	BUILD_BUG_ON(sizeof(struct qla_flt_header) != 8);
8236 	BUILD_BUG_ON(sizeof(struct qla_flt_region) != 16);
8237 	BUILD_BUG_ON(sizeof(struct qla_npiv_entry) != 24);
8238 	BUILD_BUG_ON(sizeof(struct qla_npiv_header) != 16);
8239 	BUILD_BUG_ON(sizeof(struct rdp_rsp_payload) != 336);
8240 	BUILD_BUG_ON(sizeof(struct sns_cmd_pkt) != 2064);
8241 	BUILD_BUG_ON(sizeof(struct sts_entry_24xx) != 64);
8242 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry) != 64);
8243 	BUILD_BUG_ON(sizeof(struct tsk_mgmt_entry_fx00) != 64);
8244 	BUILD_BUG_ON(sizeof(struct verify_chip_entry_84xx) != 64);
8245 	BUILD_BUG_ON(sizeof(struct verify_chip_rsp_84xx) != 52);
8246 	BUILD_BUG_ON(sizeof(struct vf_evfp_entry_24xx) != 56);
8247 	BUILD_BUG_ON(sizeof(struct vp_config_entry_24xx) != 64);
8248 	BUILD_BUG_ON(sizeof(struct vp_ctrl_entry_24xx) != 64);
8249 	BUILD_BUG_ON(sizeof(struct vp_rpt_id_entry_24xx) != 64);
8250 	BUILD_BUG_ON(sizeof(sts21_entry_t) != 64);
8251 	BUILD_BUG_ON(sizeof(sts22_entry_t) != 64);
8252 	BUILD_BUG_ON(sizeof(sts_cont_entry_t) != 64);
8253 	BUILD_BUG_ON(sizeof(sts_entry_t) != 64);
8254 	BUILD_BUG_ON(sizeof(sw_info_t) != 32);
8255 	BUILD_BUG_ON(sizeof(target_id_t) != 2);
8256 
8257 	qla_trace_init();
8258 
8259 	/* Allocate cache for SRBs. */
8260 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
8261 	    SLAB_HWCACHE_ALIGN, NULL);
8262 	if (srb_cachep == NULL) {
8263 		ql_log(ql_log_fatal, NULL, 0x0001,
8264 		    "Unable to allocate SRB cache...Failing load!.\n");
8265 		return -ENOMEM;
8266 	}
8267 
8268 	/* Initialize target kmem_cache and mem_pools */
8269 	ret = qlt_init();
8270 	if (ret < 0) {
8271 		goto destroy_cache;
8272 	} else if (ret > 0) {
8273 		/*
8274 		 * If initiator mode is explictly disabled by qlt_init(),
8275 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
8276 		 * performing scsi_scan_target() during LOOP UP event.
8277 		 */
8278 		qla2xxx_transport_functions.disable_target_scan = 1;
8279 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
8280 	}
8281 
8282 	/* Derive version string. */
8283 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
8284 	if (ql2xextended_error_logging)
8285 		strcat(qla2x00_version_str, "-debug");
8286 	if (ql2xextended_error_logging == 1)
8287 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
8288 
8289 	qla2xxx_transport_template =
8290 	    fc_attach_transport(&qla2xxx_transport_functions);
8291 	if (!qla2xxx_transport_template) {
8292 		ql_log(ql_log_fatal, NULL, 0x0002,
8293 		    "fc_attach_transport failed...Failing load!.\n");
8294 		ret = -ENODEV;
8295 		goto qlt_exit;
8296 	}
8297 
8298 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
8299 	if (apidev_major < 0) {
8300 		ql_log(ql_log_fatal, NULL, 0x0003,
8301 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
8302 	}
8303 
8304 	qla2xxx_transport_vport_template =
8305 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
8306 	if (!qla2xxx_transport_vport_template) {
8307 		ql_log(ql_log_fatal, NULL, 0x0004,
8308 		    "fc_attach_transport vport failed...Failing load!.\n");
8309 		ret = -ENODEV;
8310 		goto unreg_chrdev;
8311 	}
8312 	ql_log(ql_log_info, NULL, 0x0005,
8313 	    "QLogic Fibre Channel HBA Driver: %s.\n",
8314 	    qla2x00_version_str);
8315 	ret = pci_register_driver(&qla2xxx_pci_driver);
8316 	if (ret) {
8317 		ql_log(ql_log_fatal, NULL, 0x0006,
8318 		    "pci_register_driver failed...ret=%d Failing load!.\n",
8319 		    ret);
8320 		goto release_vport_transport;
8321 	}
8322 	return ret;
8323 
8324 release_vport_transport:
8325 	fc_release_transport(qla2xxx_transport_vport_template);
8326 
8327 unreg_chrdev:
8328 	if (apidev_major >= 0)
8329 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8330 	fc_release_transport(qla2xxx_transport_template);
8331 
8332 qlt_exit:
8333 	qlt_exit();
8334 
8335 destroy_cache:
8336 	kmem_cache_destroy(srb_cachep);
8337 
8338 	qla_trace_uninit();
8339 	return ret;
8340 }
8341 
8342 /**
8343  * qla2x00_module_exit - Module cleanup.
8344  **/
8345 static void __exit
8346 qla2x00_module_exit(void)
8347 {
8348 	pci_unregister_driver(&qla2xxx_pci_driver);
8349 	qla2x00_release_firmware();
8350 	kmem_cache_destroy(ctx_cachep);
8351 	fc_release_transport(qla2xxx_transport_vport_template);
8352 	if (apidev_major >= 0)
8353 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
8354 	fc_release_transport(qla2xxx_transport_template);
8355 	qlt_exit();
8356 	kmem_cache_destroy(srb_cachep);
8357 	qla_trace_uninit();
8358 }
8359 
8360 module_init(qla2x00_module_init);
8361 module_exit(qla2x00_module_exit);
8362 
8363 MODULE_AUTHOR("QLogic Corporation");
8364 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
8365 MODULE_LICENSE("GPL");
8366 MODULE_FIRMWARE(FW_FILE_ISP21XX);
8367 MODULE_FIRMWARE(FW_FILE_ISP22XX);
8368 MODULE_FIRMWARE(FW_FILE_ISP2300);
8369 MODULE_FIRMWARE(FW_FILE_ISP2322);
8370 MODULE_FIRMWARE(FW_FILE_ISP24XX);
8371 MODULE_FIRMWARE(FW_FILE_ISP25XX);
8372