xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_os.c (revision b593bce5)
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2014 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8 
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 
19 #include <scsi/scsi_tcq.h>
20 #include <scsi/scsicam.h>
21 #include <scsi/scsi_transport.h>
22 #include <scsi/scsi_transport_fc.h>
23 
24 #include "qla_target.h"
25 
26 /*
27  * Driver version
28  */
29 char qla2x00_version_str[40];
30 
31 static int apidev_major;
32 
33 /*
34  * SRB allocation cache
35  */
36 struct kmem_cache *srb_cachep;
37 
38 /*
39  * CT6 CTX allocation cache
40  */
41 static struct kmem_cache *ctx_cachep;
42 /*
43  * error level for logging
44  */
45 uint ql_errlev = 0x8001;
46 
47 static int ql2xenableclass2;
48 module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
49 MODULE_PARM_DESC(ql2xenableclass2,
50 		"Specify if Class 2 operations are supported from the very "
51 		"beginning. Default is 0 - class 2 not supported.");
52 
53 
54 int ql2xlogintimeout = 20;
55 module_param(ql2xlogintimeout, int, S_IRUGO);
56 MODULE_PARM_DESC(ql2xlogintimeout,
57 		"Login timeout value in seconds.");
58 
59 int qlport_down_retry;
60 module_param(qlport_down_retry, int, S_IRUGO);
61 MODULE_PARM_DESC(qlport_down_retry,
62 		"Maximum number of command retries to a port that returns "
63 		"a PORT-DOWN status.");
64 
65 int ql2xplogiabsentdevice;
66 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
67 MODULE_PARM_DESC(ql2xplogiabsentdevice,
68 		"Option to enable PLOGI to devices that are not present after "
69 		"a Fabric scan.  This is needed for several broken switches. "
70 		"Default is 0 - no PLOGI. 1 - perform PLOGI.");
71 
72 int ql2xloginretrycount = 0;
73 module_param(ql2xloginretrycount, int, S_IRUGO);
74 MODULE_PARM_DESC(ql2xloginretrycount,
75 		"Specify an alternate value for the NVRAM login retry count.");
76 
77 int ql2xallocfwdump = 1;
78 module_param(ql2xallocfwdump, int, S_IRUGO);
79 MODULE_PARM_DESC(ql2xallocfwdump,
80 		"Option to enable allocation of memory for a firmware dump "
81 		"during HBA initialization.  Memory allocation requirements "
82 		"vary by ISP type.  Default is 1 - allocate memory.");
83 
84 int ql2xextended_error_logging;
85 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
86 module_param_named(logging, ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
87 MODULE_PARM_DESC(ql2xextended_error_logging,
88 		"Option to enable extended error logging,\n"
89 		"\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
90 		"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
91 		"\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
92 		"\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
93 		"\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
94 		"\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
95 		"\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
96 		"\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
97 		"\t\t0x00008000 - Verbose.       0x00004000 - Target.\n"
98 		"\t\t0x00002000 - Target Mgmt.   0x00001000 - Target TMF.\n"
99 		"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
100 		"\t\t0x1e400000 - Preferred value for capturing essential "
101 		"debug information (equivalent to old "
102 		"ql2xextended_error_logging=1).\n"
103 		"\t\tDo LOGICAL OR of the value to enable more than one level");
104 
105 int ql2xshiftctondsd = 6;
106 module_param(ql2xshiftctondsd, int, S_IRUGO);
107 MODULE_PARM_DESC(ql2xshiftctondsd,
108 		"Set to control shifting of command type processing "
109 		"based on total number of SG elements.");
110 
111 int ql2xfdmienable = 1;
112 module_param(ql2xfdmienable, int, S_IRUGO|S_IWUSR);
113 module_param_named(fdmi, ql2xfdmienable, int, S_IRUGO|S_IWUSR);
114 MODULE_PARM_DESC(ql2xfdmienable,
115 		"Enables FDMI registrations. "
116 		"0 - no FDMI. Default is 1 - perform FDMI.");
117 
118 #define MAX_Q_DEPTH	64
119 static int ql2xmaxqdepth = MAX_Q_DEPTH;
120 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
121 MODULE_PARM_DESC(ql2xmaxqdepth,
122 		"Maximum queue depth to set for each LUN. "
123 		"Default is 64.");
124 
125 #if (IS_ENABLED(CONFIG_NVME_FC))
126 int ql2xenabledif;
127 #else
128 int ql2xenabledif = 2;
129 #endif
130 module_param(ql2xenabledif, int, S_IRUGO);
131 MODULE_PARM_DESC(ql2xenabledif,
132 		" Enable T10-CRC-DIF:\n"
133 		" Default is 2.\n"
134 		"  0 -- No DIF Support\n"
135 		"  1 -- Enable DIF for all types\n"
136 		"  2 -- Enable DIF for all types, except Type 0.\n");
137 
138 #if (IS_ENABLED(CONFIG_NVME_FC))
139 int ql2xnvmeenable = 1;
140 #else
141 int ql2xnvmeenable;
142 #endif
143 module_param(ql2xnvmeenable, int, 0644);
144 MODULE_PARM_DESC(ql2xnvmeenable,
145     "Enables NVME support. "
146     "0 - no NVMe.  Default is Y");
147 
148 int ql2xenablehba_err_chk = 2;
149 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
150 MODULE_PARM_DESC(ql2xenablehba_err_chk,
151 		" Enable T10-CRC-DIF Error isolation by HBA:\n"
152 		" Default is 2.\n"
153 		"  0 -- Error isolation disabled\n"
154 		"  1 -- Error isolation enabled only for DIX Type 0\n"
155 		"  2 -- Error isolation enabled for all Types\n");
156 
157 int ql2xiidmaenable = 1;
158 module_param(ql2xiidmaenable, int, S_IRUGO);
159 MODULE_PARM_DESC(ql2xiidmaenable,
160 		"Enables iIDMA settings "
161 		"Default is 1 - perform iIDMA. 0 - no iIDMA.");
162 
163 int ql2xmqsupport = 1;
164 module_param(ql2xmqsupport, int, S_IRUGO);
165 MODULE_PARM_DESC(ql2xmqsupport,
166 		"Enable on demand multiple queue pairs support "
167 		"Default is 1 for supported. "
168 		"Set it to 0 to turn off mq qpair support.");
169 
170 int ql2xfwloadbin;
171 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
172 module_param_named(fwload, ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
173 MODULE_PARM_DESC(ql2xfwloadbin,
174 		"Option to specify location from which to load ISP firmware:.\n"
175 		" 2 -- load firmware via the request_firmware() (hotplug).\n"
176 		"      interface.\n"
177 		" 1 -- load firmware from flash.\n"
178 		" 0 -- use default semantics.\n");
179 
180 int ql2xetsenable;
181 module_param(ql2xetsenable, int, S_IRUGO);
182 MODULE_PARM_DESC(ql2xetsenable,
183 		"Enables firmware ETS burst."
184 		"Default is 0 - skip ETS enablement.");
185 
186 int ql2xdbwr = 1;
187 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
188 MODULE_PARM_DESC(ql2xdbwr,
189 		"Option to specify scheme for request queue posting.\n"
190 		" 0 -- Regular doorbell.\n"
191 		" 1 -- CAMRAM doorbell (faster).\n");
192 
193 int ql2xtargetreset = 1;
194 module_param(ql2xtargetreset, int, S_IRUGO);
195 MODULE_PARM_DESC(ql2xtargetreset,
196 		 "Enable target reset."
197 		 "Default is 1 - use hw defaults.");
198 
199 int ql2xgffidenable;
200 module_param(ql2xgffidenable, int, S_IRUGO);
201 MODULE_PARM_DESC(ql2xgffidenable,
202 		"Enables GFF_ID checks of port type. "
203 		"Default is 0 - Do not use GFF_ID information.");
204 
205 int ql2xasynctmfenable = 1;
206 module_param(ql2xasynctmfenable, int, S_IRUGO);
207 MODULE_PARM_DESC(ql2xasynctmfenable,
208 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
209 		"Default is 1 - Issue TM IOCBs via mailbox mechanism.");
210 
211 int ql2xdontresethba;
212 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
213 MODULE_PARM_DESC(ql2xdontresethba,
214 		"Option to specify reset behaviour.\n"
215 		" 0 (Default) -- Reset on failure.\n"
216 		" 1 -- Do not reset on failure.\n");
217 
218 uint64_t ql2xmaxlun = MAX_LUNS;
219 module_param(ql2xmaxlun, ullong, S_IRUGO);
220 MODULE_PARM_DESC(ql2xmaxlun,
221 		"Defines the maximum LU number to register with the SCSI "
222 		"midlayer. Default is 65535.");
223 
224 int ql2xmdcapmask = 0x1F;
225 module_param(ql2xmdcapmask, int, S_IRUGO);
226 MODULE_PARM_DESC(ql2xmdcapmask,
227 		"Set the Minidump driver capture mask level. "
228 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
229 
230 int ql2xmdenable = 1;
231 module_param(ql2xmdenable, int, S_IRUGO);
232 MODULE_PARM_DESC(ql2xmdenable,
233 		"Enable/disable MiniDump. "
234 		"0 - MiniDump disabled. "
235 		"1 (Default) - MiniDump enabled.");
236 
237 int ql2xexlogins = 0;
238 module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
239 MODULE_PARM_DESC(ql2xexlogins,
240 		 "Number of extended Logins. "
241 		 "0 (Default)- Disabled.");
242 
243 int ql2xexchoffld = 1024;
244 module_param(ql2xexchoffld, uint, 0644);
245 MODULE_PARM_DESC(ql2xexchoffld,
246 	"Number of target exchanges.");
247 
248 int ql2xiniexchg = 1024;
249 module_param(ql2xiniexchg, uint, 0644);
250 MODULE_PARM_DESC(ql2xiniexchg,
251 	"Number of initiator exchanges.");
252 
253 int ql2xfwholdabts = 0;
254 module_param(ql2xfwholdabts, int, S_IRUGO);
255 MODULE_PARM_DESC(ql2xfwholdabts,
256 		"Allow FW to hold status IOCB until ABTS rsp received. "
257 		"0 (Default) Do not set fw option. "
258 		"1 - Set fw option to hold ABTS.");
259 
260 int ql2xmvasynctoatio = 1;
261 module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
262 MODULE_PARM_DESC(ql2xmvasynctoatio,
263 		"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
264 		"0 (Default). Do not move IOCBs"
265 		"1 - Move IOCBs.");
266 
267 int ql2xautodetectsfp = 1;
268 module_param(ql2xautodetectsfp, int, 0444);
269 MODULE_PARM_DESC(ql2xautodetectsfp,
270 		 "Detect SFP range and set appropriate distance.\n"
271 		 "1 (Default): Enable\n");
272 
273 int ql2xenablemsix = 1;
274 module_param(ql2xenablemsix, int, 0444);
275 MODULE_PARM_DESC(ql2xenablemsix,
276 		 "Set to enable MSI or MSI-X interrupt mechanism.\n"
277 		 " Default is 1, enable MSI-X interrupt mechanism.\n"
278 		 " 0 -- enable traditional pin-based mechanism.\n"
279 		 " 1 -- enable MSI-X interrupt mechanism.\n"
280 		 " 2 -- enable MSI interrupt mechanism.\n");
281 
282 int qla2xuseresexchforels;
283 module_param(qla2xuseresexchforels, int, 0444);
284 MODULE_PARM_DESC(qla2xuseresexchforels,
285 		 "Reserve 1/2 of emergency exchanges for ELS.\n"
286 		 " 0 (default): disabled");
287 
288 static int ql2xprotmask;
289 module_param(ql2xprotmask, int, 0644);
290 MODULE_PARM_DESC(ql2xprotmask,
291 		 "Override DIF/DIX protection capabilities mask\n"
292 		 "Default is 0 which sets protection mask based on "
293 		 "capabilities reported by HBA firmware.\n");
294 
295 static int ql2xprotguard;
296 module_param(ql2xprotguard, int, 0644);
297 MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
298 		 "  0 -- Let HBA firmware decide\n"
299 		 "  1 -- Force T10 CRC\n"
300 		 "  2 -- Force IP checksum\n");
301 
302 int ql2xdifbundlinginternalbuffers;
303 module_param(ql2xdifbundlinginternalbuffers, int, 0644);
304 MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
305     "Force using internal buffers for DIF information\n"
306     "0 (Default). Based on check.\n"
307     "1 Force using internal buffers\n");
308 
309 static void qla2x00_clear_drv_active(struct qla_hw_data *);
310 static void qla2x00_free_device(scsi_qla_host_t *);
311 static int qla2xxx_map_queues(struct Scsi_Host *shost);
312 static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
313 
314 
315 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
316 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
317 
318 /* TODO Convert to inlines
319  *
320  * Timer routines
321  */
322 
323 __inline__ void
324 qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
325 {
326 	timer_setup(&vha->timer, qla2x00_timer, 0);
327 	vha->timer.expires = jiffies + interval * HZ;
328 	add_timer(&vha->timer);
329 	vha->timer_active = 1;
330 }
331 
332 static inline void
333 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
334 {
335 	/* Currently used for 82XX only. */
336 	if (vha->device_flags & DFLG_DEV_FAILED) {
337 		ql_dbg(ql_dbg_timer, vha, 0x600d,
338 		    "Device in a failed state, returning.\n");
339 		return;
340 	}
341 
342 	mod_timer(&vha->timer, jiffies + interval * HZ);
343 }
344 
345 static __inline__ void
346 qla2x00_stop_timer(scsi_qla_host_t *vha)
347 {
348 	del_timer_sync(&vha->timer);
349 	vha->timer_active = 0;
350 }
351 
352 static int qla2x00_do_dpc(void *data);
353 
354 static void qla2x00_rst_aen(scsi_qla_host_t *);
355 
356 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
357 	struct req_que **, struct rsp_que **);
358 static void qla2x00_free_fw_dump(struct qla_hw_data *);
359 static void qla2x00_mem_free(struct qla_hw_data *);
360 int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
361 	struct qla_qpair *qpair);
362 
363 /* -------------------------------------------------------------------------- */
364 static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
365     struct rsp_que *rsp)
366 {
367 	struct qla_hw_data *ha = vha->hw;
368 
369 	rsp->qpair = ha->base_qpair;
370 	rsp->req = req;
371 	ha->base_qpair->hw = ha;
372 	ha->base_qpair->req = req;
373 	ha->base_qpair->rsp = rsp;
374 	ha->base_qpair->vha = vha;
375 	ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
376 	ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
377 	ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
378 	ha->base_qpair->srb_mempool = ha->srb_mempool;
379 	INIT_LIST_HEAD(&ha->base_qpair->hints_list);
380 	ha->base_qpair->enable_class_2 = ql2xenableclass2;
381 	/* init qpair to this cpu. Will adjust at run time. */
382 	qla_cpu_update(rsp->qpair, raw_smp_processor_id());
383 	ha->base_qpair->pdev = ha->pdev;
384 
385 	if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
386 		ha->base_qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
387 }
388 
389 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
390 				struct rsp_que *rsp)
391 {
392 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
393 
394 	ha->req_q_map = kcalloc(ha->max_req_queues, sizeof(struct req_que *),
395 				GFP_KERNEL);
396 	if (!ha->req_q_map) {
397 		ql_log(ql_log_fatal, vha, 0x003b,
398 		    "Unable to allocate memory for request queue ptrs.\n");
399 		goto fail_req_map;
400 	}
401 
402 	ha->rsp_q_map = kcalloc(ha->max_rsp_queues, sizeof(struct rsp_que *),
403 				GFP_KERNEL);
404 	if (!ha->rsp_q_map) {
405 		ql_log(ql_log_fatal, vha, 0x003c,
406 		    "Unable to allocate memory for response queue ptrs.\n");
407 		goto fail_rsp_map;
408 	}
409 
410 	ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
411 	if (ha->base_qpair == NULL) {
412 		ql_log(ql_log_warn, vha, 0x00e0,
413 		    "Failed to allocate base queue pair memory.\n");
414 		goto fail_base_qpair;
415 	}
416 
417 	qla_init_base_qpair(vha, req, rsp);
418 
419 	if ((ql2xmqsupport || ql2xnvmeenable) && ha->max_qpairs) {
420 		ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
421 			GFP_KERNEL);
422 		if (!ha->queue_pair_map) {
423 			ql_log(ql_log_fatal, vha, 0x0180,
424 			    "Unable to allocate memory for queue pair ptrs.\n");
425 			goto fail_qpair_map;
426 		}
427 	}
428 
429 	/*
430 	 * Make sure we record at least the request and response queue zero in
431 	 * case we need to free them if part of the probe fails.
432 	 */
433 	ha->rsp_q_map[0] = rsp;
434 	ha->req_q_map[0] = req;
435 	set_bit(0, ha->rsp_qid_map);
436 	set_bit(0, ha->req_qid_map);
437 	return 0;
438 
439 fail_qpair_map:
440 	kfree(ha->base_qpair);
441 	ha->base_qpair = NULL;
442 fail_base_qpair:
443 	kfree(ha->rsp_q_map);
444 	ha->rsp_q_map = NULL;
445 fail_rsp_map:
446 	kfree(ha->req_q_map);
447 	ha->req_q_map = NULL;
448 fail_req_map:
449 	return -ENOMEM;
450 }
451 
452 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
453 {
454 	if (IS_QLAFX00(ha)) {
455 		if (req && req->ring_fx00)
456 			dma_free_coherent(&ha->pdev->dev,
457 			    (req->length_fx00 + 1) * sizeof(request_t),
458 			    req->ring_fx00, req->dma_fx00);
459 	} else if (req && req->ring)
460 		dma_free_coherent(&ha->pdev->dev,
461 		(req->length + 1) * sizeof(request_t),
462 		req->ring, req->dma);
463 
464 	if (req)
465 		kfree(req->outstanding_cmds);
466 
467 	kfree(req);
468 }
469 
470 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
471 {
472 	if (IS_QLAFX00(ha)) {
473 		if (rsp && rsp->ring_fx00)
474 			dma_free_coherent(&ha->pdev->dev,
475 			    (rsp->length_fx00 + 1) * sizeof(request_t),
476 			    rsp->ring_fx00, rsp->dma_fx00);
477 	} else if (rsp && rsp->ring) {
478 		dma_free_coherent(&ha->pdev->dev,
479 		(rsp->length + 1) * sizeof(response_t),
480 		rsp->ring, rsp->dma);
481 	}
482 	kfree(rsp);
483 }
484 
485 static void qla2x00_free_queues(struct qla_hw_data *ha)
486 {
487 	struct req_que *req;
488 	struct rsp_que *rsp;
489 	int cnt;
490 	unsigned long flags;
491 
492 	if (ha->queue_pair_map) {
493 		kfree(ha->queue_pair_map);
494 		ha->queue_pair_map = NULL;
495 	}
496 	if (ha->base_qpair) {
497 		kfree(ha->base_qpair);
498 		ha->base_qpair = NULL;
499 	}
500 
501 	spin_lock_irqsave(&ha->hardware_lock, flags);
502 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
503 		if (!test_bit(cnt, ha->req_qid_map))
504 			continue;
505 
506 		req = ha->req_q_map[cnt];
507 		clear_bit(cnt, ha->req_qid_map);
508 		ha->req_q_map[cnt] = NULL;
509 
510 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
511 		qla2x00_free_req_que(ha, req);
512 		spin_lock_irqsave(&ha->hardware_lock, flags);
513 	}
514 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
515 
516 	kfree(ha->req_q_map);
517 	ha->req_q_map = NULL;
518 
519 
520 	spin_lock_irqsave(&ha->hardware_lock, flags);
521 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
522 		if (!test_bit(cnt, ha->rsp_qid_map))
523 			continue;
524 
525 		rsp = ha->rsp_q_map[cnt];
526 		clear_bit(cnt, ha->rsp_qid_map);
527 		ha->rsp_q_map[cnt] =  NULL;
528 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
529 		qla2x00_free_rsp_que(ha, rsp);
530 		spin_lock_irqsave(&ha->hardware_lock, flags);
531 	}
532 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
533 
534 	kfree(ha->rsp_q_map);
535 	ha->rsp_q_map = NULL;
536 }
537 
538 static char *
539 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
540 {
541 	struct qla_hw_data *ha = vha->hw;
542 	static char *pci_bus_modes[] = {
543 		"33", "66", "100", "133",
544 	};
545 	uint16_t pci_bus;
546 
547 	strcpy(str, "PCI");
548 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
549 	if (pci_bus) {
550 		strcat(str, "-X (");
551 		strcat(str, pci_bus_modes[pci_bus]);
552 	} else {
553 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
554 		strcat(str, " (");
555 		strcat(str, pci_bus_modes[pci_bus]);
556 	}
557 	strcat(str, " MHz)");
558 
559 	return (str);
560 }
561 
562 static char *
563 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
564 {
565 	static char *pci_bus_modes[] = { "33", "66", "100", "133", };
566 	struct qla_hw_data *ha = vha->hw;
567 	uint32_t pci_bus;
568 
569 	if (pci_is_pcie(ha->pdev)) {
570 		char lwstr[6];
571 		uint32_t lstat, lspeed, lwidth;
572 
573 		pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
574 		lspeed = lstat & PCI_EXP_LNKCAP_SLS;
575 		lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
576 
577 		strcpy(str, "PCIe (");
578 		switch (lspeed) {
579 		case 1:
580 			strcat(str, "2.5GT/s ");
581 			break;
582 		case 2:
583 			strcat(str, "5.0GT/s ");
584 			break;
585 		case 3:
586 			strcat(str, "8.0GT/s ");
587 			break;
588 		default:
589 			strcat(str, "<unknown> ");
590 			break;
591 		}
592 		snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
593 		strcat(str, lwstr);
594 
595 		return str;
596 	}
597 
598 	strcpy(str, "PCI");
599 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
600 	if (pci_bus == 0 || pci_bus == 8) {
601 		strcat(str, " (");
602 		strcat(str, pci_bus_modes[pci_bus >> 3]);
603 	} else {
604 		strcat(str, "-X ");
605 		if (pci_bus & BIT_2)
606 			strcat(str, "Mode 2");
607 		else
608 			strcat(str, "Mode 1");
609 		strcat(str, " (");
610 		strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
611 	}
612 	strcat(str, " MHz)");
613 
614 	return str;
615 }
616 
617 static char *
618 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
619 {
620 	char un_str[10];
621 	struct qla_hw_data *ha = vha->hw;
622 
623 	snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
624 	    ha->fw_minor_version, ha->fw_subminor_version);
625 
626 	if (ha->fw_attributes & BIT_9) {
627 		strcat(str, "FLX");
628 		return (str);
629 	}
630 
631 	switch (ha->fw_attributes & 0xFF) {
632 	case 0x7:
633 		strcat(str, "EF");
634 		break;
635 	case 0x17:
636 		strcat(str, "TP");
637 		break;
638 	case 0x37:
639 		strcat(str, "IP");
640 		break;
641 	case 0x77:
642 		strcat(str, "VI");
643 		break;
644 	default:
645 		sprintf(un_str, "(%x)", ha->fw_attributes);
646 		strcat(str, un_str);
647 		break;
648 	}
649 	if (ha->fw_attributes & 0x100)
650 		strcat(str, "X");
651 
652 	return (str);
653 }
654 
655 static char *
656 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
657 {
658 	struct qla_hw_data *ha = vha->hw;
659 
660 	snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
661 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
662 	return str;
663 }
664 
665 void
666 qla2x00_sp_free_dma(void *ptr)
667 {
668 	srb_t *sp = ptr;
669 	struct qla_hw_data *ha = sp->vha->hw;
670 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
671 	void *ctx = GET_CMD_CTX_SP(sp);
672 
673 	if (sp->flags & SRB_DMA_VALID) {
674 		scsi_dma_unmap(cmd);
675 		sp->flags &= ~SRB_DMA_VALID;
676 	}
677 
678 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
679 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
680 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
681 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
682 	}
683 
684 	if (!ctx)
685 		return;
686 
687 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
688 		/* List assured to be having elements */
689 		qla2x00_clean_dsd_pool(ha, ctx);
690 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
691 	}
692 
693 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
694 		struct crc_context *ctx0 = ctx;
695 
696 		dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
697 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
698 	}
699 
700 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
701 		struct ct6_dsd *ctx1 = ctx;
702 
703 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
704 		    ctx1->fcp_cmnd_dma);
705 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
706 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
707 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
708 		mempool_free(ctx1, ha->ctx_mempool);
709 	}
710 }
711 
712 void
713 qla2x00_sp_compl(void *ptr, int res)
714 {
715 	srb_t *sp = ptr;
716 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
717 	struct completion *comp = sp->comp;
718 
719 	if (WARN_ON_ONCE(atomic_read(&sp->ref_count) == 0))
720 		return;
721 
722 	atomic_dec(&sp->ref_count);
723 
724 	sp->free(sp);
725 	cmd->result = res;
726 	CMD_SP(cmd) = NULL;
727 	cmd->scsi_done(cmd);
728 	if (comp)
729 		complete(comp);
730 	qla2x00_rel_sp(sp);
731 }
732 
733 void
734 qla2xxx_qpair_sp_free_dma(void *ptr)
735 {
736 	srb_t *sp = (srb_t *)ptr;
737 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
738 	struct qla_hw_data *ha = sp->fcport->vha->hw;
739 	void *ctx = GET_CMD_CTX_SP(sp);
740 
741 	if (sp->flags & SRB_DMA_VALID) {
742 		scsi_dma_unmap(cmd);
743 		sp->flags &= ~SRB_DMA_VALID;
744 	}
745 
746 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
747 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
748 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
749 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
750 	}
751 
752 	if (!ctx)
753 		return;
754 
755 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
756 		/* List assured to be having elements */
757 		qla2x00_clean_dsd_pool(ha, ctx);
758 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
759 	}
760 
761 	if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
762 		struct crc_context *difctx = ctx;
763 		struct dsd_dma *dif_dsd, *nxt_dsd;
764 
765 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
766 		    &difctx->ldif_dma_hndl_list, list) {
767 			list_del(&dif_dsd->list);
768 			dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
769 			    dif_dsd->dsd_list_dma);
770 			kfree(dif_dsd);
771 			difctx->no_dif_bundl--;
772 		}
773 
774 		list_for_each_entry_safe(dif_dsd, nxt_dsd,
775 		    &difctx->ldif_dsd_list, list) {
776 			list_del(&dif_dsd->list);
777 			dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
778 			    dif_dsd->dsd_list_dma);
779 			kfree(dif_dsd);
780 			difctx->no_ldif_dsd--;
781 		}
782 
783 		if (difctx->no_ldif_dsd) {
784 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
785 			    "%s: difctx->no_ldif_dsd=%x\n",
786 			    __func__, difctx->no_ldif_dsd);
787 		}
788 
789 		if (difctx->no_dif_bundl) {
790 			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
791 			    "%s: difctx->no_dif_bundl=%x\n",
792 			    __func__, difctx->no_dif_bundl);
793 		}
794 		sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
795 	}
796 
797 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
798 		struct ct6_dsd *ctx1 = ctx;
799 
800 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
801 		    ctx1->fcp_cmnd_dma);
802 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
803 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
804 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
805 		mempool_free(ctx1, ha->ctx_mempool);
806 		sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
807 	}
808 
809 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
810 		struct crc_context *ctx0 = ctx;
811 
812 		dma_pool_free(ha->dl_dma_pool, ctx, ctx0->crc_ctx_dma);
813 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
814 	}
815 }
816 
817 void
818 qla2xxx_qpair_sp_compl(void *ptr, int res)
819 {
820 	srb_t *sp = ptr;
821 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
822 	struct completion *comp = sp->comp;
823 
824 	if (WARN_ON_ONCE(atomic_read(&sp->ref_count) == 0))
825 		return;
826 
827 	atomic_dec(&sp->ref_count);
828 
829 	sp->free(sp);
830 	cmd->result = res;
831 	CMD_SP(cmd) = NULL;
832 	cmd->scsi_done(cmd);
833 	if (comp)
834 		complete(comp);
835 	qla2xxx_rel_qpair_sp(sp->qpair, sp);
836 }
837 
838 static int
839 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
840 {
841 	scsi_qla_host_t *vha = shost_priv(host);
842 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
843 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
844 	struct qla_hw_data *ha = vha->hw;
845 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
846 	srb_t *sp;
847 	int rval;
848 	struct qla_qpair *qpair = NULL;
849 	uint32_t tag;
850 	uint16_t hwq;
851 
852 	if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags)) ||
853 	    WARN_ON_ONCE(!rport)) {
854 		cmd->result = DID_NO_CONNECT << 16;
855 		goto qc24_fail_command;
856 	}
857 
858 	if (ha->mqenable) {
859 		tag = blk_mq_unique_tag(cmd->request);
860 		hwq = blk_mq_unique_tag_to_hwq(tag);
861 		qpair = ha->queue_pair_map[hwq];
862 
863 		if (qpair)
864 			return qla2xxx_mqueuecommand(host, cmd, qpair);
865 	}
866 
867 	if (ha->flags.eeh_busy) {
868 		if (ha->flags.pci_channel_io_perm_failure) {
869 			ql_dbg(ql_dbg_aer, vha, 0x9010,
870 			    "PCI Channel IO permanent failure, exiting "
871 			    "cmd=%p.\n", cmd);
872 			cmd->result = DID_NO_CONNECT << 16;
873 		} else {
874 			ql_dbg(ql_dbg_aer, vha, 0x9011,
875 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
876 			cmd->result = DID_REQUEUE << 16;
877 		}
878 		goto qc24_fail_command;
879 	}
880 
881 	rval = fc_remote_port_chkready(rport);
882 	if (rval) {
883 		cmd->result = rval;
884 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
885 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
886 		    cmd, rval);
887 		goto qc24_fail_command;
888 	}
889 
890 	if (!vha->flags.difdix_supported &&
891 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
892 			ql_dbg(ql_dbg_io, vha, 0x3004,
893 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
894 			    cmd);
895 			cmd->result = DID_NO_CONNECT << 16;
896 			goto qc24_fail_command;
897 	}
898 
899 	if (!fcport) {
900 		cmd->result = DID_NO_CONNECT << 16;
901 		goto qc24_fail_command;
902 	}
903 
904 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
905 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
906 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
907 			ql_dbg(ql_dbg_io, vha, 0x3005,
908 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
909 			    atomic_read(&fcport->state),
910 			    atomic_read(&base_vha->loop_state));
911 			cmd->result = DID_NO_CONNECT << 16;
912 			goto qc24_fail_command;
913 		}
914 		goto qc24_target_busy;
915 	}
916 
917 	/*
918 	 * Return target busy if we've received a non-zero retry_delay_timer
919 	 * in a FCP_RSP.
920 	 */
921 	if (fcport->retry_delay_timestamp == 0) {
922 		/* retry delay not set */
923 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
924 		fcport->retry_delay_timestamp = 0;
925 	else
926 		goto qc24_target_busy;
927 
928 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
929 	if (!sp)
930 		goto qc24_host_busy;
931 
932 	sp->u.scmd.cmd = cmd;
933 	sp->type = SRB_SCSI_CMD;
934 	atomic_set(&sp->ref_count, 1);
935 	CMD_SP(cmd) = (void *)sp;
936 	sp->free = qla2x00_sp_free_dma;
937 	sp->done = qla2x00_sp_compl;
938 
939 	rval = ha->isp_ops->start_scsi(sp);
940 	if (rval != QLA_SUCCESS) {
941 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
942 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
943 		goto qc24_host_busy_free_sp;
944 	}
945 
946 	return 0;
947 
948 qc24_host_busy_free_sp:
949 	sp->free(sp);
950 
951 qc24_host_busy:
952 	return SCSI_MLQUEUE_HOST_BUSY;
953 
954 qc24_target_busy:
955 	return SCSI_MLQUEUE_TARGET_BUSY;
956 
957 qc24_fail_command:
958 	cmd->scsi_done(cmd);
959 
960 	return 0;
961 }
962 
963 /* For MQ supported I/O */
964 int
965 qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
966     struct qla_qpair *qpair)
967 {
968 	scsi_qla_host_t *vha = shost_priv(host);
969 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
970 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
971 	struct qla_hw_data *ha = vha->hw;
972 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
973 	srb_t *sp;
974 	int rval;
975 
976 	rval = rport ? fc_remote_port_chkready(rport) : FC_PORTSTATE_OFFLINE;
977 	if (rval) {
978 		cmd->result = rval;
979 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
980 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
981 		    cmd, rval);
982 		goto qc24_fail_command;
983 	}
984 
985 	if (!fcport) {
986 		cmd->result = DID_NO_CONNECT << 16;
987 		goto qc24_fail_command;
988 	}
989 
990 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
991 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
992 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
993 			ql_dbg(ql_dbg_io, vha, 0x3077,
994 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
995 			    atomic_read(&fcport->state),
996 			    atomic_read(&base_vha->loop_state));
997 			cmd->result = DID_NO_CONNECT << 16;
998 			goto qc24_fail_command;
999 		}
1000 		goto qc24_target_busy;
1001 	}
1002 
1003 	/*
1004 	 * Return target busy if we've received a non-zero retry_delay_timer
1005 	 * in a FCP_RSP.
1006 	 */
1007 	if (fcport->retry_delay_timestamp == 0) {
1008 		/* retry delay not set */
1009 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
1010 		fcport->retry_delay_timestamp = 0;
1011 	else
1012 		goto qc24_target_busy;
1013 
1014 	sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
1015 	if (!sp)
1016 		goto qc24_host_busy;
1017 
1018 	sp->u.scmd.cmd = cmd;
1019 	sp->type = SRB_SCSI_CMD;
1020 	atomic_set(&sp->ref_count, 1);
1021 	CMD_SP(cmd) = (void *)sp;
1022 	sp->free = qla2xxx_qpair_sp_free_dma;
1023 	sp->done = qla2xxx_qpair_sp_compl;
1024 	sp->qpair = qpair;
1025 
1026 	rval = ha->isp_ops->start_scsi_mq(sp);
1027 	if (rval != QLA_SUCCESS) {
1028 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
1029 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
1030 		if (rval == QLA_INTERFACE_ERROR)
1031 			goto qc24_fail_command;
1032 		goto qc24_host_busy_free_sp;
1033 	}
1034 
1035 	return 0;
1036 
1037 qc24_host_busy_free_sp:
1038 	sp->free(sp);
1039 
1040 qc24_host_busy:
1041 	return SCSI_MLQUEUE_HOST_BUSY;
1042 
1043 qc24_target_busy:
1044 	return SCSI_MLQUEUE_TARGET_BUSY;
1045 
1046 qc24_fail_command:
1047 	cmd->scsi_done(cmd);
1048 
1049 	return 0;
1050 }
1051 
1052 /*
1053  * qla2x00_eh_wait_on_command
1054  *    Waits for the command to be returned by the Firmware for some
1055  *    max time.
1056  *
1057  * Input:
1058  *    cmd = Scsi Command to wait on.
1059  *
1060  * Return:
1061  *    Not Found : 0
1062  *    Found : 1
1063  */
1064 static int
1065 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
1066 {
1067 #define ABORT_POLLING_PERIOD	1000
1068 #define ABORT_WAIT_ITER		((2 * 1000) / (ABORT_POLLING_PERIOD))
1069 	unsigned long wait_iter = ABORT_WAIT_ITER;
1070 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1071 	struct qla_hw_data *ha = vha->hw;
1072 	int ret = QLA_SUCCESS;
1073 
1074 	if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
1075 		ql_dbg(ql_dbg_taskm, vha, 0x8005,
1076 		    "Return:eh_wait.\n");
1077 		return ret;
1078 	}
1079 
1080 	while (CMD_SP(cmd) && wait_iter--) {
1081 		msleep(ABORT_POLLING_PERIOD);
1082 	}
1083 	if (CMD_SP(cmd))
1084 		ret = QLA_FUNCTION_FAILED;
1085 
1086 	return ret;
1087 }
1088 
1089 /*
1090  * qla2x00_wait_for_hba_online
1091  *    Wait till the HBA is online after going through
1092  *    <= MAX_RETRIES_OF_ISP_ABORT  or
1093  *    finally HBA is disabled ie marked offline
1094  *
1095  * Input:
1096  *     ha - pointer to host adapter structure
1097  *
1098  * Note:
1099  *    Does context switching-Release SPIN_LOCK
1100  *    (if any) before calling this routine.
1101  *
1102  * Return:
1103  *    Success (Adapter is online) : 0
1104  *    Failed  (Adapter is offline/disabled) : 1
1105  */
1106 int
1107 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
1108 {
1109 	int		return_status;
1110 	unsigned long	wait_online;
1111 	struct qla_hw_data *ha = vha->hw;
1112 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1113 
1114 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1115 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1116 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1117 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1118 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
1119 
1120 		msleep(1000);
1121 	}
1122 	if (base_vha->flags.online)
1123 		return_status = QLA_SUCCESS;
1124 	else
1125 		return_status = QLA_FUNCTION_FAILED;
1126 
1127 	return (return_status);
1128 }
1129 
1130 static inline int test_fcport_count(scsi_qla_host_t *vha)
1131 {
1132 	struct qla_hw_data *ha = vha->hw;
1133 	unsigned long flags;
1134 	int res;
1135 
1136 	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1137 	ql_dbg(ql_dbg_init, vha, 0x00ec,
1138 	    "tgt %p, fcport_count=%d\n",
1139 	    vha, vha->fcport_count);
1140 	res = (vha->fcport_count == 0);
1141 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1142 
1143 	return res;
1144 }
1145 
1146 /*
1147  * qla2x00_wait_for_sess_deletion can only be called from remove_one.
1148  * it has dependency on UNLOADING flag to stop device discovery
1149  */
1150 void
1151 qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
1152 {
1153 	qla2x00_mark_all_devices_lost(vha, 0);
1154 
1155 	wait_event_timeout(vha->fcport_waitQ, test_fcport_count(vha), 10*HZ);
1156 }
1157 
1158 /*
1159  * qla2x00_wait_for_hba_ready
1160  * Wait till the HBA is ready before doing driver unload
1161  *
1162  * Input:
1163  *     ha - pointer to host adapter structure
1164  *
1165  * Note:
1166  *    Does context switching-Release SPIN_LOCK
1167  *    (if any) before calling this routine.
1168  *
1169  */
1170 static void
1171 qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
1172 {
1173 	struct qla_hw_data *ha = vha->hw;
1174 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1175 
1176 	while ((qla2x00_reset_active(vha) || ha->dpc_active ||
1177 		ha->flags.mbox_busy) ||
1178 	       test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
1179 	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
1180 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
1181 			break;
1182 		msleep(1000);
1183 	}
1184 }
1185 
1186 int
1187 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
1188 {
1189 	int		return_status;
1190 	unsigned long	wait_reset;
1191 	struct qla_hw_data *ha = vha->hw;
1192 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1193 
1194 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1195 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1196 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1197 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1198 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
1199 
1200 		msleep(1000);
1201 
1202 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
1203 		    ha->flags.chip_reset_done)
1204 			break;
1205 	}
1206 	if (ha->flags.chip_reset_done)
1207 		return_status = QLA_SUCCESS;
1208 	else
1209 		return_status = QLA_FUNCTION_FAILED;
1210 
1211 	return return_status;
1212 }
1213 
1214 static int
1215 sp_get(struct srb *sp)
1216 {
1217 	if (!refcount_inc_not_zero((refcount_t *)&sp->ref_count))
1218 		/* kref get fail */
1219 		return ENXIO;
1220 	else
1221 		return 0;
1222 }
1223 
1224 #define ISP_REG_DISCONNECT 0xffffffffU
1225 /**************************************************************************
1226 * qla2x00_isp_reg_stat
1227 *
1228 * Description:
1229 *	Read the host status register of ISP before aborting the command.
1230 *
1231 * Input:
1232 *	ha = pointer to host adapter structure.
1233 *
1234 *
1235 * Returns:
1236 *	Either true or false.
1237 *
1238 * Note:	Return true if there is register disconnect.
1239 **************************************************************************/
1240 static inline
1241 uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
1242 {
1243 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1244 	struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1245 
1246 	if (IS_P3P_TYPE(ha))
1247 		return ((RD_REG_DWORD(&reg82->host_int)) == ISP_REG_DISCONNECT);
1248 	else
1249 		return ((RD_REG_DWORD(&reg->host_status)) ==
1250 			ISP_REG_DISCONNECT);
1251 }
1252 
1253 /**************************************************************************
1254 * qla2xxx_eh_abort
1255 *
1256 * Description:
1257 *    The abort function will abort the specified command.
1258 *
1259 * Input:
1260 *    cmd = Linux SCSI command packet to be aborted.
1261 *
1262 * Returns:
1263 *    Either SUCCESS or FAILED.
1264 *
1265 * Note:
1266 *    Only return FAILED if command not returned by firmware.
1267 **************************************************************************/
1268 static int
1269 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
1270 {
1271 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1272 	srb_t *sp;
1273 	int ret;
1274 	unsigned int id;
1275 	uint64_t lun;
1276 	unsigned long flags;
1277 	int rval;
1278 	struct qla_hw_data *ha = vha->hw;
1279 	struct qla_qpair *qpair;
1280 
1281 	if (qla2x00_isp_reg_stat(ha)) {
1282 		ql_log(ql_log_info, vha, 0x8042,
1283 		    "PCI/Register disconnect, exiting.\n");
1284 		return FAILED;
1285 	}
1286 
1287 	ret = fc_block_scsi_eh(cmd);
1288 	if (ret != 0)
1289 		return ret;
1290 
1291 	sp = (srb_t *) CMD_SP(cmd);
1292 	if (!sp)
1293 		return SUCCESS;
1294 
1295 	qpair = sp->qpair;
1296 	if (!qpair)
1297 		return SUCCESS;
1298 
1299 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1300 	if (sp->type != SRB_SCSI_CMD || GET_CMD_SP(sp) != cmd) {
1301 		/* there's a chance an interrupt could clear
1302 		   the ptr as part of done & free */
1303 		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1304 		return SUCCESS;
1305 	}
1306 
1307 	if (sp_get(sp)){
1308 		/* ref_count is already 0 */
1309 		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1310 		return SUCCESS;
1311 	}
1312 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1313 
1314 	id = cmd->device->id;
1315 	lun = cmd->device->lun;
1316 
1317 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
1318 	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
1319 	    vha->host_no, id, lun, sp, cmd, sp->handle);
1320 
1321 	rval = ha->isp_ops->abort_command(sp);
1322 	ql_dbg(ql_dbg_taskm, vha, 0x8003,
1323 	       "Abort command mbx cmd=%p, rval=%x.\n", cmd, rval);
1324 
1325 	switch (rval) {
1326 	case QLA_SUCCESS:
1327 		/*
1328 		 * The command has been aborted. That means that the firmware
1329 		 * won't report a completion.
1330 		 */
1331 		sp->done(sp, DID_ABORT << 16);
1332 		ret = SUCCESS;
1333 		break;
1334 	default:
1335 		/*
1336 		 * Either abort failed or abort and completion raced. Let
1337 		 * the SCSI core retry the abort in the former case.
1338 		 */
1339 		ret = FAILED;
1340 		break;
1341 	}
1342 
1343 	ql_log(ql_log_info, vha, 0x801c,
1344 	    "Abort command issued nexus=%ld:%d:%llu -- %x.\n",
1345 	    vha->host_no, id, lun, ret);
1346 
1347 	return ret;
1348 }
1349 
1350 int
1351 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1352 	uint64_t l, enum nexus_wait_type type)
1353 {
1354 	int cnt, match, status;
1355 	unsigned long flags;
1356 	struct qla_hw_data *ha = vha->hw;
1357 	struct req_que *req;
1358 	srb_t *sp;
1359 	struct scsi_cmnd *cmd;
1360 
1361 	status = QLA_SUCCESS;
1362 
1363 	spin_lock_irqsave(&ha->hardware_lock, flags);
1364 	req = vha->req;
1365 	for (cnt = 1; status == QLA_SUCCESS &&
1366 		cnt < req->num_outstanding_cmds; cnt++) {
1367 		sp = req->outstanding_cmds[cnt];
1368 		if (!sp)
1369 			continue;
1370 		if (sp->type != SRB_SCSI_CMD)
1371 			continue;
1372 		if (vha->vp_idx != sp->vha->vp_idx)
1373 			continue;
1374 		match = 0;
1375 		cmd = GET_CMD_SP(sp);
1376 		switch (type) {
1377 		case WAIT_HOST:
1378 			match = 1;
1379 			break;
1380 		case WAIT_TARGET:
1381 			match = cmd->device->id == t;
1382 			break;
1383 		case WAIT_LUN:
1384 			match = (cmd->device->id == t &&
1385 				cmd->device->lun == l);
1386 			break;
1387 		}
1388 		if (!match)
1389 			continue;
1390 
1391 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1392 		status = qla2x00_eh_wait_on_command(cmd);
1393 		spin_lock_irqsave(&ha->hardware_lock, flags);
1394 	}
1395 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1396 
1397 	return status;
1398 }
1399 
1400 static char *reset_errors[] = {
1401 	"HBA not online",
1402 	"HBA not ready",
1403 	"Task management failed",
1404 	"Waiting for command completions",
1405 };
1406 
1407 static int
1408 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
1409     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, uint64_t, int))
1410 {
1411 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1412 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1413 	int err;
1414 
1415 	if (!fcport) {
1416 		return FAILED;
1417 	}
1418 
1419 	err = fc_block_scsi_eh(cmd);
1420 	if (err != 0)
1421 		return err;
1422 
1423 	ql_log(ql_log_info, vha, 0x8009,
1424 	    "%s RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", name, vha->host_no,
1425 	    cmd->device->id, cmd->device->lun, cmd);
1426 
1427 	err = 0;
1428 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1429 		ql_log(ql_log_warn, vha, 0x800a,
1430 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1431 		goto eh_reset_failed;
1432 	}
1433 	err = 2;
1434 	if (do_reset(fcport, cmd->device->lun, 1)
1435 		!= QLA_SUCCESS) {
1436 		ql_log(ql_log_warn, vha, 0x800c,
1437 		    "do_reset failed for cmd=%p.\n", cmd);
1438 		goto eh_reset_failed;
1439 	}
1440 	err = 3;
1441 	if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1442 	    cmd->device->lun, type) != QLA_SUCCESS) {
1443 		ql_log(ql_log_warn, vha, 0x800d,
1444 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1445 		goto eh_reset_failed;
1446 	}
1447 
1448 	ql_log(ql_log_info, vha, 0x800e,
1449 	    "%s RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n", name,
1450 	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1451 
1452 	return SUCCESS;
1453 
1454 eh_reset_failed:
1455 	ql_log(ql_log_info, vha, 0x800f,
1456 	    "%s RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n", name,
1457 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1458 	    cmd);
1459 	return FAILED;
1460 }
1461 
1462 static int
1463 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1464 {
1465 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1466 	struct qla_hw_data *ha = vha->hw;
1467 
1468 	if (qla2x00_isp_reg_stat(ha)) {
1469 		ql_log(ql_log_info, vha, 0x803e,
1470 		    "PCI/Register disconnect, exiting.\n");
1471 		return FAILED;
1472 	}
1473 
1474 	return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1475 	    ha->isp_ops->lun_reset);
1476 }
1477 
1478 static int
1479 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1480 {
1481 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1482 	struct qla_hw_data *ha = vha->hw;
1483 
1484 	if (qla2x00_isp_reg_stat(ha)) {
1485 		ql_log(ql_log_info, vha, 0x803f,
1486 		    "PCI/Register disconnect, exiting.\n");
1487 		return FAILED;
1488 	}
1489 
1490 	return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1491 	    ha->isp_ops->target_reset);
1492 }
1493 
1494 /**************************************************************************
1495 * qla2xxx_eh_bus_reset
1496 *
1497 * Description:
1498 *    The bus reset function will reset the bus and abort any executing
1499 *    commands.
1500 *
1501 * Input:
1502 *    cmd = Linux SCSI command packet of the command that cause the
1503 *          bus reset.
1504 *
1505 * Returns:
1506 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1507 *
1508 **************************************************************************/
1509 static int
1510 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1511 {
1512 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1513 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1514 	int ret = FAILED;
1515 	unsigned int id;
1516 	uint64_t lun;
1517 	struct qla_hw_data *ha = vha->hw;
1518 
1519 	if (qla2x00_isp_reg_stat(ha)) {
1520 		ql_log(ql_log_info, vha, 0x8040,
1521 		    "PCI/Register disconnect, exiting.\n");
1522 		return FAILED;
1523 	}
1524 
1525 	id = cmd->device->id;
1526 	lun = cmd->device->lun;
1527 
1528 	if (!fcport) {
1529 		return ret;
1530 	}
1531 
1532 	ret = fc_block_scsi_eh(cmd);
1533 	if (ret != 0)
1534 		return ret;
1535 	ret = FAILED;
1536 
1537 	ql_log(ql_log_info, vha, 0x8012,
1538 	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1539 
1540 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1541 		ql_log(ql_log_fatal, vha, 0x8013,
1542 		    "Wait for hba online failed board disabled.\n");
1543 		goto eh_bus_reset_done;
1544 	}
1545 
1546 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1547 		ret = SUCCESS;
1548 
1549 	if (ret == FAILED)
1550 		goto eh_bus_reset_done;
1551 
1552 	/* Flush outstanding commands. */
1553 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1554 	    QLA_SUCCESS) {
1555 		ql_log(ql_log_warn, vha, 0x8014,
1556 		    "Wait for pending commands failed.\n");
1557 		ret = FAILED;
1558 	}
1559 
1560 eh_bus_reset_done:
1561 	ql_log(ql_log_warn, vha, 0x802b,
1562 	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
1563 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1564 
1565 	return ret;
1566 }
1567 
1568 /**************************************************************************
1569 * qla2xxx_eh_host_reset
1570 *
1571 * Description:
1572 *    The reset function will reset the Adapter.
1573 *
1574 * Input:
1575 *      cmd = Linux SCSI command packet of the command that cause the
1576 *            adapter reset.
1577 *
1578 * Returns:
1579 *      Either SUCCESS or FAILED.
1580 *
1581 * Note:
1582 **************************************************************************/
1583 static int
1584 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1585 {
1586 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1587 	struct qla_hw_data *ha = vha->hw;
1588 	int ret = FAILED;
1589 	unsigned int id;
1590 	uint64_t lun;
1591 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1592 
1593 	if (qla2x00_isp_reg_stat(ha)) {
1594 		ql_log(ql_log_info, vha, 0x8041,
1595 		    "PCI/Register disconnect, exiting.\n");
1596 		schedule_work(&ha->board_disable);
1597 		return SUCCESS;
1598 	}
1599 
1600 	id = cmd->device->id;
1601 	lun = cmd->device->lun;
1602 
1603 	ql_log(ql_log_info, vha, 0x8018,
1604 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1605 
1606 	/*
1607 	 * No point in issuing another reset if one is active.  Also do not
1608 	 * attempt a reset if we are updating flash.
1609 	 */
1610 	if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
1611 		goto eh_host_reset_lock;
1612 
1613 	if (vha != base_vha) {
1614 		if (qla2x00_vp_abort_isp(vha))
1615 			goto eh_host_reset_lock;
1616 	} else {
1617 		if (IS_P3P_TYPE(vha->hw)) {
1618 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1619 				/* Ctx reset success */
1620 				ret = SUCCESS;
1621 				goto eh_host_reset_lock;
1622 			}
1623 			/* fall thru if ctx reset failed */
1624 		}
1625 		if (ha->wq)
1626 			flush_workqueue(ha->wq);
1627 
1628 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1629 		if (ha->isp_ops->abort_isp(base_vha)) {
1630 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1631 			/* failed. schedule dpc to try */
1632 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1633 
1634 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1635 				ql_log(ql_log_warn, vha, 0x802a,
1636 				    "wait for hba online failed.\n");
1637 				goto eh_host_reset_lock;
1638 			}
1639 		}
1640 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1641 	}
1642 
1643 	/* Waiting for command to be returned to OS.*/
1644 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1645 		QLA_SUCCESS)
1646 		ret = SUCCESS;
1647 
1648 eh_host_reset_lock:
1649 	ql_log(ql_log_info, vha, 0x8017,
1650 	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
1651 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1652 
1653 	return ret;
1654 }
1655 
1656 /*
1657 * qla2x00_loop_reset
1658 *      Issue loop reset.
1659 *
1660 * Input:
1661 *      ha = adapter block pointer.
1662 *
1663 * Returns:
1664 *      0 = success
1665 */
1666 int
1667 qla2x00_loop_reset(scsi_qla_host_t *vha)
1668 {
1669 	int ret;
1670 	struct fc_port *fcport;
1671 	struct qla_hw_data *ha = vha->hw;
1672 
1673 	if (IS_QLAFX00(ha)) {
1674 		return qlafx00_loop_reset(vha);
1675 	}
1676 
1677 	if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1678 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1679 			if (fcport->port_type != FCT_TARGET)
1680 				continue;
1681 
1682 			ret = ha->isp_ops->target_reset(fcport, 0, 0);
1683 			if (ret != QLA_SUCCESS) {
1684 				ql_dbg(ql_dbg_taskm, vha, 0x802c,
1685 				    "Bus Reset failed: Reset=%d "
1686 				    "d_id=%x.\n", ret, fcport->d_id.b24);
1687 			}
1688 		}
1689 	}
1690 
1691 
1692 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1693 		atomic_set(&vha->loop_state, LOOP_DOWN);
1694 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1695 		qla2x00_mark_all_devices_lost(vha, 0);
1696 		ret = qla2x00_full_login_lip(vha);
1697 		if (ret != QLA_SUCCESS) {
1698 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1699 			    "full_login_lip=%d.\n", ret);
1700 		}
1701 	}
1702 
1703 	if (ha->flags.enable_lip_reset) {
1704 		ret = qla2x00_lip_reset(vha);
1705 		if (ret != QLA_SUCCESS)
1706 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1707 			    "lip_reset failed (%d).\n", ret);
1708 	}
1709 
1710 	/* Issue marker command only when we are going to start the I/O */
1711 	vha->marker_needed = 1;
1712 
1713 	return QLA_SUCCESS;
1714 }
1715 
1716 static void qla2x00_abort_srb(struct qla_qpair *qp, srb_t *sp, const int res,
1717 			      unsigned long *flags)
1718 	__releases(qp->qp_lock_ptr)
1719 	__acquires(qp->qp_lock_ptr)
1720 {
1721 	DECLARE_COMPLETION_ONSTACK(comp);
1722 	scsi_qla_host_t *vha = qp->vha;
1723 	struct qla_hw_data *ha = vha->hw;
1724 	int rval;
1725 
1726 	if (sp_get(sp))
1727 		return;
1728 
1729 	if (sp->type == SRB_NVME_CMD || sp->type == SRB_NVME_LS ||
1730 	    (sp->type == SRB_SCSI_CMD && !ha->flags.eeh_busy &&
1731 	     !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
1732 	     !qla2x00_isp_reg_stat(ha))) {
1733 		sp->comp = &comp;
1734 		spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
1735 		rval = ha->isp_ops->abort_command(sp);
1736 
1737 		switch (rval) {
1738 		case QLA_SUCCESS:
1739 			sp->done(sp, res);
1740 			break;
1741 		case QLA_FUNCTION_PARAMETER_ERROR:
1742 			wait_for_completion(&comp);
1743 			break;
1744 		}
1745 
1746 		spin_lock_irqsave(qp->qp_lock_ptr, *flags);
1747 		sp->comp = NULL;
1748 	}
1749 }
1750 
1751 static void
1752 __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
1753 {
1754 	int cnt;
1755 	unsigned long flags;
1756 	srb_t *sp;
1757 	scsi_qla_host_t *vha = qp->vha;
1758 	struct qla_hw_data *ha = vha->hw;
1759 	struct req_que *req;
1760 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
1761 	struct qla_tgt_cmd *cmd;
1762 
1763 	if (!ha->req_q_map)
1764 		return;
1765 	spin_lock_irqsave(qp->qp_lock_ptr, flags);
1766 	req = qp->req;
1767 	for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1768 		sp = req->outstanding_cmds[cnt];
1769 		if (sp) {
1770 			req->outstanding_cmds[cnt] = NULL;
1771 			switch (sp->cmd_type) {
1772 			case TYPE_SRB:
1773 				qla2x00_abort_srb(qp, sp, res, &flags);
1774 				break;
1775 			case TYPE_TGT_CMD:
1776 				if (!vha->hw->tgt.tgt_ops || !tgt ||
1777 				    qla_ini_mode_enabled(vha)) {
1778 					ql_dbg(ql_dbg_tgt_mgt, vha, 0xf003,
1779 					    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
1780 					    vha->dpc_flags);
1781 					continue;
1782 				}
1783 				cmd = (struct qla_tgt_cmd *)sp;
1784 				cmd->aborted = 1;
1785 				break;
1786 			case TYPE_TGT_TMCMD:
1787 				/* Skip task management functions. */
1788 				break;
1789 			default:
1790 				break;
1791 			}
1792 		}
1793 	}
1794 	spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
1795 }
1796 
1797 void
1798 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1799 {
1800 	int que;
1801 	struct qla_hw_data *ha = vha->hw;
1802 
1803 	__qla2x00_abort_all_cmds(ha->base_qpair, res);
1804 
1805 	for (que = 0; que < ha->max_qpairs; que++) {
1806 		if (!ha->queue_pair_map[que])
1807 			continue;
1808 
1809 		__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
1810 	}
1811 }
1812 
1813 static int
1814 qla2xxx_slave_alloc(struct scsi_device *sdev)
1815 {
1816 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1817 
1818 	if (!rport || fc_remote_port_chkready(rport))
1819 		return -ENXIO;
1820 
1821 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1822 
1823 	return 0;
1824 }
1825 
1826 static int
1827 qla2xxx_slave_configure(struct scsi_device *sdev)
1828 {
1829 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1830 	struct req_que *req = vha->req;
1831 
1832 	if (IS_T10_PI_CAPABLE(vha->hw))
1833 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1834 
1835 	scsi_change_queue_depth(sdev, req->max_q_depth);
1836 	return 0;
1837 }
1838 
1839 static void
1840 qla2xxx_slave_destroy(struct scsi_device *sdev)
1841 {
1842 	sdev->hostdata = NULL;
1843 }
1844 
1845 /**
1846  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1847  * @ha: HA context
1848  *
1849  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1850  * supported addressing method.
1851  */
1852 static void
1853 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1854 {
1855 	/* Assume a 32bit DMA mask. */
1856 	ha->flags.enable_64bit_addressing = 0;
1857 
1858 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1859 		/* Any upper-dword bits set? */
1860 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1861 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1862 			/* Ok, a 64bit DMA mask is applicable. */
1863 			ha->flags.enable_64bit_addressing = 1;
1864 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1865 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1866 			return;
1867 		}
1868 	}
1869 
1870 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1871 	pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1872 }
1873 
1874 static void
1875 qla2x00_enable_intrs(struct qla_hw_data *ha)
1876 {
1877 	unsigned long flags = 0;
1878 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1879 
1880 	spin_lock_irqsave(&ha->hardware_lock, flags);
1881 	ha->interrupts_on = 1;
1882 	/* enable risc and host interrupts */
1883 	WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1884 	RD_REG_WORD(&reg->ictrl);
1885 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1886 
1887 }
1888 
1889 static void
1890 qla2x00_disable_intrs(struct qla_hw_data *ha)
1891 {
1892 	unsigned long flags = 0;
1893 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1894 
1895 	spin_lock_irqsave(&ha->hardware_lock, flags);
1896 	ha->interrupts_on = 0;
1897 	/* disable risc and host interrupts */
1898 	WRT_REG_WORD(&reg->ictrl, 0);
1899 	RD_REG_WORD(&reg->ictrl);
1900 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1901 }
1902 
1903 static void
1904 qla24xx_enable_intrs(struct qla_hw_data *ha)
1905 {
1906 	unsigned long flags = 0;
1907 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1908 
1909 	spin_lock_irqsave(&ha->hardware_lock, flags);
1910 	ha->interrupts_on = 1;
1911 	WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1912 	RD_REG_DWORD(&reg->ictrl);
1913 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1914 }
1915 
1916 static void
1917 qla24xx_disable_intrs(struct qla_hw_data *ha)
1918 {
1919 	unsigned long flags = 0;
1920 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1921 
1922 	if (IS_NOPOLLING_TYPE(ha))
1923 		return;
1924 	spin_lock_irqsave(&ha->hardware_lock, flags);
1925 	ha->interrupts_on = 0;
1926 	WRT_REG_DWORD(&reg->ictrl, 0);
1927 	RD_REG_DWORD(&reg->ictrl);
1928 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1929 }
1930 
1931 static int
1932 qla2x00_iospace_config(struct qla_hw_data *ha)
1933 {
1934 	resource_size_t pio;
1935 	uint16_t msix;
1936 
1937 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1938 	    QLA2XXX_DRIVER_NAME)) {
1939 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1940 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1941 		    pci_name(ha->pdev));
1942 		goto iospace_error_exit;
1943 	}
1944 	if (!(ha->bars & 1))
1945 		goto skip_pio;
1946 
1947 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
1948 	pio = pci_resource_start(ha->pdev, 0);
1949 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1950 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1951 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1952 			    "Invalid pci I/O region size (%s).\n",
1953 			    pci_name(ha->pdev));
1954 			pio = 0;
1955 		}
1956 	} else {
1957 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1958 		    "Region #0 no a PIO resource (%s).\n",
1959 		    pci_name(ha->pdev));
1960 		pio = 0;
1961 	}
1962 	ha->pio_address = pio;
1963 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1964 	    "PIO address=%llu.\n",
1965 	    (unsigned long long)ha->pio_address);
1966 
1967 skip_pio:
1968 	/* Use MMIO operations for all accesses. */
1969 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1970 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1971 		    "Region #1 not an MMIO resource (%s), aborting.\n",
1972 		    pci_name(ha->pdev));
1973 		goto iospace_error_exit;
1974 	}
1975 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1976 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1977 		    "Invalid PCI mem region size (%s), aborting.\n",
1978 		    pci_name(ha->pdev));
1979 		goto iospace_error_exit;
1980 	}
1981 
1982 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1983 	if (!ha->iobase) {
1984 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1985 		    "Cannot remap MMIO (%s), aborting.\n",
1986 		    pci_name(ha->pdev));
1987 		goto iospace_error_exit;
1988 	}
1989 
1990 	/* Determine queue resources */
1991 	ha->max_req_queues = ha->max_rsp_queues = 1;
1992 	ha->msix_count = QLA_BASE_VECTORS;
1993 	if (!ql2xmqsupport || !ql2xnvmeenable ||
1994 	    (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1995 		goto mqiobase_exit;
1996 
1997 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1998 			pci_resource_len(ha->pdev, 3));
1999 	if (ha->mqiobase) {
2000 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
2001 		    "MQIO Base=%p.\n", ha->mqiobase);
2002 		/* Read MSIX vector size of the board */
2003 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
2004 		ha->msix_count = msix + 1;
2005 		/* Max queues are bounded by available msix vectors */
2006 		/* MB interrupt uses 1 vector */
2007 		ha->max_req_queues = ha->msix_count - 1;
2008 		ha->max_rsp_queues = ha->max_req_queues;
2009 		/* Queue pairs is the max value minus the base queue pair */
2010 		ha->max_qpairs = ha->max_rsp_queues - 1;
2011 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
2012 		    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2013 
2014 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
2015 		    "MSI-X vector count: %d.\n", ha->msix_count);
2016 	} else
2017 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
2018 		    "BAR 3 not enabled.\n");
2019 
2020 mqiobase_exit:
2021 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
2022 	    "MSIX Count: %d.\n", ha->msix_count);
2023 	return (0);
2024 
2025 iospace_error_exit:
2026 	return (-ENOMEM);
2027 }
2028 
2029 
2030 static int
2031 qla83xx_iospace_config(struct qla_hw_data *ha)
2032 {
2033 	uint16_t msix;
2034 
2035 	if (pci_request_selected_regions(ha->pdev, ha->bars,
2036 	    QLA2XXX_DRIVER_NAME)) {
2037 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
2038 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
2039 		    pci_name(ha->pdev));
2040 
2041 		goto iospace_error_exit;
2042 	}
2043 
2044 	/* Use MMIO operations for all accesses. */
2045 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
2046 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
2047 		    "Invalid pci I/O region size (%s).\n",
2048 		    pci_name(ha->pdev));
2049 		goto iospace_error_exit;
2050 	}
2051 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
2052 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
2053 		    "Invalid PCI mem region size (%s), aborting\n",
2054 			pci_name(ha->pdev));
2055 		goto iospace_error_exit;
2056 	}
2057 
2058 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
2059 	if (!ha->iobase) {
2060 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
2061 		    "Cannot remap MMIO (%s), aborting.\n",
2062 		    pci_name(ha->pdev));
2063 		goto iospace_error_exit;
2064 	}
2065 
2066 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
2067 	/* 83XX 26XX always use MQ type access for queues
2068 	 * - mbar 2, a.k.a region 4 */
2069 	ha->max_req_queues = ha->max_rsp_queues = 1;
2070 	ha->msix_count = QLA_BASE_VECTORS;
2071 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
2072 			pci_resource_len(ha->pdev, 4));
2073 
2074 	if (!ha->mqiobase) {
2075 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
2076 		    "BAR2/region4 not enabled\n");
2077 		goto mqiobase_exit;
2078 	}
2079 
2080 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
2081 			pci_resource_len(ha->pdev, 2));
2082 	if (ha->msixbase) {
2083 		/* Read MSIX vector size of the board */
2084 		pci_read_config_word(ha->pdev,
2085 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
2086 		ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE)  + 1;
2087 		/*
2088 		 * By default, driver uses at least two msix vectors
2089 		 * (default & rspq)
2090 		 */
2091 		if (ql2xmqsupport || ql2xnvmeenable) {
2092 			/* MB interrupt uses 1 vector */
2093 			ha->max_req_queues = ha->msix_count - 1;
2094 
2095 			/* ATIOQ needs 1 vector. That's 1 less QPair */
2096 			if (QLA_TGT_MODE_ENABLED())
2097 				ha->max_req_queues--;
2098 
2099 			ha->max_rsp_queues = ha->max_req_queues;
2100 
2101 			/* Queue pairs is the max value minus
2102 			 * the base queue pair */
2103 			ha->max_qpairs = ha->max_req_queues - 1;
2104 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x00e3,
2105 			    "Max no of queues pairs: %d.\n", ha->max_qpairs);
2106 		}
2107 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
2108 		    "MSI-X vector count: %d.\n", ha->msix_count);
2109 	} else
2110 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
2111 		    "BAR 1 not enabled.\n");
2112 
2113 mqiobase_exit:
2114 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
2115 	    "MSIX Count: %d.\n", ha->msix_count);
2116 	return 0;
2117 
2118 iospace_error_exit:
2119 	return -ENOMEM;
2120 }
2121 
2122 static struct isp_operations qla2100_isp_ops = {
2123 	.pci_config		= qla2100_pci_config,
2124 	.reset_chip		= qla2x00_reset_chip,
2125 	.chip_diag		= qla2x00_chip_diag,
2126 	.config_rings		= qla2x00_config_rings,
2127 	.reset_adapter		= qla2x00_reset_adapter,
2128 	.nvram_config		= qla2x00_nvram_config,
2129 	.update_fw_options	= qla2x00_update_fw_options,
2130 	.load_risc		= qla2x00_load_risc,
2131 	.pci_info_str		= qla2x00_pci_info_str,
2132 	.fw_version_str		= qla2x00_fw_version_str,
2133 	.intr_handler		= qla2100_intr_handler,
2134 	.enable_intrs		= qla2x00_enable_intrs,
2135 	.disable_intrs		= qla2x00_disable_intrs,
2136 	.abort_command		= qla2x00_abort_command,
2137 	.target_reset		= qla2x00_abort_target,
2138 	.lun_reset		= qla2x00_lun_reset,
2139 	.fabric_login		= qla2x00_login_fabric,
2140 	.fabric_logout		= qla2x00_fabric_logout,
2141 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2142 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2143 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2144 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2145 	.read_nvram		= qla2x00_read_nvram_data,
2146 	.write_nvram		= qla2x00_write_nvram_data,
2147 	.fw_dump		= qla2100_fw_dump,
2148 	.beacon_on		= NULL,
2149 	.beacon_off		= NULL,
2150 	.beacon_blink		= NULL,
2151 	.read_optrom		= qla2x00_read_optrom_data,
2152 	.write_optrom		= qla2x00_write_optrom_data,
2153 	.get_flash_version	= qla2x00_get_flash_version,
2154 	.start_scsi		= qla2x00_start_scsi,
2155 	.start_scsi_mq          = NULL,
2156 	.abort_isp		= qla2x00_abort_isp,
2157 	.iospace_config     	= qla2x00_iospace_config,
2158 	.initialize_adapter	= qla2x00_initialize_adapter,
2159 };
2160 
2161 static struct isp_operations qla2300_isp_ops = {
2162 	.pci_config		= qla2300_pci_config,
2163 	.reset_chip		= qla2x00_reset_chip,
2164 	.chip_diag		= qla2x00_chip_diag,
2165 	.config_rings		= qla2x00_config_rings,
2166 	.reset_adapter		= qla2x00_reset_adapter,
2167 	.nvram_config		= qla2x00_nvram_config,
2168 	.update_fw_options	= qla2x00_update_fw_options,
2169 	.load_risc		= qla2x00_load_risc,
2170 	.pci_info_str		= qla2x00_pci_info_str,
2171 	.fw_version_str		= qla2x00_fw_version_str,
2172 	.intr_handler		= qla2300_intr_handler,
2173 	.enable_intrs		= qla2x00_enable_intrs,
2174 	.disable_intrs		= qla2x00_disable_intrs,
2175 	.abort_command		= qla2x00_abort_command,
2176 	.target_reset		= qla2x00_abort_target,
2177 	.lun_reset		= qla2x00_lun_reset,
2178 	.fabric_login		= qla2x00_login_fabric,
2179 	.fabric_logout		= qla2x00_fabric_logout,
2180 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2181 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2182 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2183 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2184 	.read_nvram		= qla2x00_read_nvram_data,
2185 	.write_nvram		= qla2x00_write_nvram_data,
2186 	.fw_dump		= qla2300_fw_dump,
2187 	.beacon_on		= qla2x00_beacon_on,
2188 	.beacon_off		= qla2x00_beacon_off,
2189 	.beacon_blink		= qla2x00_beacon_blink,
2190 	.read_optrom		= qla2x00_read_optrom_data,
2191 	.write_optrom		= qla2x00_write_optrom_data,
2192 	.get_flash_version	= qla2x00_get_flash_version,
2193 	.start_scsi		= qla2x00_start_scsi,
2194 	.start_scsi_mq          = NULL,
2195 	.abort_isp		= qla2x00_abort_isp,
2196 	.iospace_config		= qla2x00_iospace_config,
2197 	.initialize_adapter	= qla2x00_initialize_adapter,
2198 };
2199 
2200 static struct isp_operations qla24xx_isp_ops = {
2201 	.pci_config		= qla24xx_pci_config,
2202 	.reset_chip		= qla24xx_reset_chip,
2203 	.chip_diag		= qla24xx_chip_diag,
2204 	.config_rings		= qla24xx_config_rings,
2205 	.reset_adapter		= qla24xx_reset_adapter,
2206 	.nvram_config		= qla24xx_nvram_config,
2207 	.update_fw_options	= qla24xx_update_fw_options,
2208 	.load_risc		= qla24xx_load_risc,
2209 	.pci_info_str		= qla24xx_pci_info_str,
2210 	.fw_version_str		= qla24xx_fw_version_str,
2211 	.intr_handler		= qla24xx_intr_handler,
2212 	.enable_intrs		= qla24xx_enable_intrs,
2213 	.disable_intrs		= qla24xx_disable_intrs,
2214 	.abort_command		= qla24xx_abort_command,
2215 	.target_reset		= qla24xx_abort_target,
2216 	.lun_reset		= qla24xx_lun_reset,
2217 	.fabric_login		= qla24xx_login_fabric,
2218 	.fabric_logout		= qla24xx_fabric_logout,
2219 	.calc_req_entries	= NULL,
2220 	.build_iocbs		= NULL,
2221 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2222 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2223 	.read_nvram		= qla24xx_read_nvram_data,
2224 	.write_nvram		= qla24xx_write_nvram_data,
2225 	.fw_dump		= qla24xx_fw_dump,
2226 	.beacon_on		= qla24xx_beacon_on,
2227 	.beacon_off		= qla24xx_beacon_off,
2228 	.beacon_blink		= qla24xx_beacon_blink,
2229 	.read_optrom		= qla24xx_read_optrom_data,
2230 	.write_optrom		= qla24xx_write_optrom_data,
2231 	.get_flash_version	= qla24xx_get_flash_version,
2232 	.start_scsi		= qla24xx_start_scsi,
2233 	.start_scsi_mq          = NULL,
2234 	.abort_isp		= qla2x00_abort_isp,
2235 	.iospace_config		= qla2x00_iospace_config,
2236 	.initialize_adapter	= qla2x00_initialize_adapter,
2237 };
2238 
2239 static struct isp_operations qla25xx_isp_ops = {
2240 	.pci_config		= qla25xx_pci_config,
2241 	.reset_chip		= qla24xx_reset_chip,
2242 	.chip_diag		= qla24xx_chip_diag,
2243 	.config_rings		= qla24xx_config_rings,
2244 	.reset_adapter		= qla24xx_reset_adapter,
2245 	.nvram_config		= qla24xx_nvram_config,
2246 	.update_fw_options	= qla24xx_update_fw_options,
2247 	.load_risc		= qla24xx_load_risc,
2248 	.pci_info_str		= qla24xx_pci_info_str,
2249 	.fw_version_str		= qla24xx_fw_version_str,
2250 	.intr_handler		= qla24xx_intr_handler,
2251 	.enable_intrs		= qla24xx_enable_intrs,
2252 	.disable_intrs		= qla24xx_disable_intrs,
2253 	.abort_command		= qla24xx_abort_command,
2254 	.target_reset		= qla24xx_abort_target,
2255 	.lun_reset		= qla24xx_lun_reset,
2256 	.fabric_login		= qla24xx_login_fabric,
2257 	.fabric_logout		= qla24xx_fabric_logout,
2258 	.calc_req_entries	= NULL,
2259 	.build_iocbs		= NULL,
2260 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2261 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2262 	.read_nvram		= qla25xx_read_nvram_data,
2263 	.write_nvram		= qla25xx_write_nvram_data,
2264 	.fw_dump		= qla25xx_fw_dump,
2265 	.beacon_on		= qla24xx_beacon_on,
2266 	.beacon_off		= qla24xx_beacon_off,
2267 	.beacon_blink		= qla24xx_beacon_blink,
2268 	.read_optrom		= qla25xx_read_optrom_data,
2269 	.write_optrom		= qla24xx_write_optrom_data,
2270 	.get_flash_version	= qla24xx_get_flash_version,
2271 	.start_scsi		= qla24xx_dif_start_scsi,
2272 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2273 	.abort_isp		= qla2x00_abort_isp,
2274 	.iospace_config		= qla2x00_iospace_config,
2275 	.initialize_adapter	= qla2x00_initialize_adapter,
2276 };
2277 
2278 static struct isp_operations qla81xx_isp_ops = {
2279 	.pci_config		= qla25xx_pci_config,
2280 	.reset_chip		= qla24xx_reset_chip,
2281 	.chip_diag		= qla24xx_chip_diag,
2282 	.config_rings		= qla24xx_config_rings,
2283 	.reset_adapter		= qla24xx_reset_adapter,
2284 	.nvram_config		= qla81xx_nvram_config,
2285 	.update_fw_options	= qla81xx_update_fw_options,
2286 	.load_risc		= qla81xx_load_risc,
2287 	.pci_info_str		= qla24xx_pci_info_str,
2288 	.fw_version_str		= qla24xx_fw_version_str,
2289 	.intr_handler		= qla24xx_intr_handler,
2290 	.enable_intrs		= qla24xx_enable_intrs,
2291 	.disable_intrs		= qla24xx_disable_intrs,
2292 	.abort_command		= qla24xx_abort_command,
2293 	.target_reset		= qla24xx_abort_target,
2294 	.lun_reset		= qla24xx_lun_reset,
2295 	.fabric_login		= qla24xx_login_fabric,
2296 	.fabric_logout		= qla24xx_fabric_logout,
2297 	.calc_req_entries	= NULL,
2298 	.build_iocbs		= NULL,
2299 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2300 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2301 	.read_nvram		= NULL,
2302 	.write_nvram		= NULL,
2303 	.fw_dump		= qla81xx_fw_dump,
2304 	.beacon_on		= qla24xx_beacon_on,
2305 	.beacon_off		= qla24xx_beacon_off,
2306 	.beacon_blink		= qla83xx_beacon_blink,
2307 	.read_optrom		= qla25xx_read_optrom_data,
2308 	.write_optrom		= qla24xx_write_optrom_data,
2309 	.get_flash_version	= qla24xx_get_flash_version,
2310 	.start_scsi		= qla24xx_dif_start_scsi,
2311 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2312 	.abort_isp		= qla2x00_abort_isp,
2313 	.iospace_config		= qla2x00_iospace_config,
2314 	.initialize_adapter	= qla2x00_initialize_adapter,
2315 };
2316 
2317 static struct isp_operations qla82xx_isp_ops = {
2318 	.pci_config		= qla82xx_pci_config,
2319 	.reset_chip		= qla82xx_reset_chip,
2320 	.chip_diag		= qla24xx_chip_diag,
2321 	.config_rings		= qla82xx_config_rings,
2322 	.reset_adapter		= qla24xx_reset_adapter,
2323 	.nvram_config		= qla81xx_nvram_config,
2324 	.update_fw_options	= qla24xx_update_fw_options,
2325 	.load_risc		= qla82xx_load_risc,
2326 	.pci_info_str		= qla24xx_pci_info_str,
2327 	.fw_version_str		= qla24xx_fw_version_str,
2328 	.intr_handler		= qla82xx_intr_handler,
2329 	.enable_intrs		= qla82xx_enable_intrs,
2330 	.disable_intrs		= qla82xx_disable_intrs,
2331 	.abort_command		= qla24xx_abort_command,
2332 	.target_reset		= qla24xx_abort_target,
2333 	.lun_reset		= qla24xx_lun_reset,
2334 	.fabric_login		= qla24xx_login_fabric,
2335 	.fabric_logout		= qla24xx_fabric_logout,
2336 	.calc_req_entries	= NULL,
2337 	.build_iocbs		= NULL,
2338 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2339 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2340 	.read_nvram		= qla24xx_read_nvram_data,
2341 	.write_nvram		= qla24xx_write_nvram_data,
2342 	.fw_dump		= qla82xx_fw_dump,
2343 	.beacon_on		= qla82xx_beacon_on,
2344 	.beacon_off		= qla82xx_beacon_off,
2345 	.beacon_blink		= NULL,
2346 	.read_optrom		= qla82xx_read_optrom_data,
2347 	.write_optrom		= qla82xx_write_optrom_data,
2348 	.get_flash_version	= qla82xx_get_flash_version,
2349 	.start_scsi             = qla82xx_start_scsi,
2350 	.start_scsi_mq          = NULL,
2351 	.abort_isp		= qla82xx_abort_isp,
2352 	.iospace_config     	= qla82xx_iospace_config,
2353 	.initialize_adapter	= qla2x00_initialize_adapter,
2354 };
2355 
2356 static struct isp_operations qla8044_isp_ops = {
2357 	.pci_config		= qla82xx_pci_config,
2358 	.reset_chip		= qla82xx_reset_chip,
2359 	.chip_diag		= qla24xx_chip_diag,
2360 	.config_rings		= qla82xx_config_rings,
2361 	.reset_adapter		= qla24xx_reset_adapter,
2362 	.nvram_config		= qla81xx_nvram_config,
2363 	.update_fw_options	= qla24xx_update_fw_options,
2364 	.load_risc		= qla82xx_load_risc,
2365 	.pci_info_str		= qla24xx_pci_info_str,
2366 	.fw_version_str		= qla24xx_fw_version_str,
2367 	.intr_handler		= qla8044_intr_handler,
2368 	.enable_intrs		= qla82xx_enable_intrs,
2369 	.disable_intrs		= qla82xx_disable_intrs,
2370 	.abort_command		= qla24xx_abort_command,
2371 	.target_reset		= qla24xx_abort_target,
2372 	.lun_reset		= qla24xx_lun_reset,
2373 	.fabric_login		= qla24xx_login_fabric,
2374 	.fabric_logout		= qla24xx_fabric_logout,
2375 	.calc_req_entries	= NULL,
2376 	.build_iocbs		= NULL,
2377 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2378 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2379 	.read_nvram		= NULL,
2380 	.write_nvram		= NULL,
2381 	.fw_dump		= qla8044_fw_dump,
2382 	.beacon_on		= qla82xx_beacon_on,
2383 	.beacon_off		= qla82xx_beacon_off,
2384 	.beacon_blink		= NULL,
2385 	.read_optrom		= qla8044_read_optrom_data,
2386 	.write_optrom		= qla8044_write_optrom_data,
2387 	.get_flash_version	= qla82xx_get_flash_version,
2388 	.start_scsi             = qla82xx_start_scsi,
2389 	.start_scsi_mq          = NULL,
2390 	.abort_isp		= qla8044_abort_isp,
2391 	.iospace_config		= qla82xx_iospace_config,
2392 	.initialize_adapter	= qla2x00_initialize_adapter,
2393 };
2394 
2395 static struct isp_operations qla83xx_isp_ops = {
2396 	.pci_config		= qla25xx_pci_config,
2397 	.reset_chip		= qla24xx_reset_chip,
2398 	.chip_diag		= qla24xx_chip_diag,
2399 	.config_rings		= qla24xx_config_rings,
2400 	.reset_adapter		= qla24xx_reset_adapter,
2401 	.nvram_config		= qla81xx_nvram_config,
2402 	.update_fw_options	= qla81xx_update_fw_options,
2403 	.load_risc		= qla81xx_load_risc,
2404 	.pci_info_str		= qla24xx_pci_info_str,
2405 	.fw_version_str		= qla24xx_fw_version_str,
2406 	.intr_handler		= qla24xx_intr_handler,
2407 	.enable_intrs		= qla24xx_enable_intrs,
2408 	.disable_intrs		= qla24xx_disable_intrs,
2409 	.abort_command		= qla24xx_abort_command,
2410 	.target_reset		= qla24xx_abort_target,
2411 	.lun_reset		= qla24xx_lun_reset,
2412 	.fabric_login		= qla24xx_login_fabric,
2413 	.fabric_logout		= qla24xx_fabric_logout,
2414 	.calc_req_entries	= NULL,
2415 	.build_iocbs		= NULL,
2416 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2417 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2418 	.read_nvram		= NULL,
2419 	.write_nvram		= NULL,
2420 	.fw_dump		= qla83xx_fw_dump,
2421 	.beacon_on		= qla24xx_beacon_on,
2422 	.beacon_off		= qla24xx_beacon_off,
2423 	.beacon_blink		= qla83xx_beacon_blink,
2424 	.read_optrom		= qla25xx_read_optrom_data,
2425 	.write_optrom		= qla24xx_write_optrom_data,
2426 	.get_flash_version	= qla24xx_get_flash_version,
2427 	.start_scsi		= qla24xx_dif_start_scsi,
2428 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2429 	.abort_isp		= qla2x00_abort_isp,
2430 	.iospace_config		= qla83xx_iospace_config,
2431 	.initialize_adapter	= qla2x00_initialize_adapter,
2432 };
2433 
2434 static struct isp_operations qlafx00_isp_ops = {
2435 	.pci_config		= qlafx00_pci_config,
2436 	.reset_chip		= qlafx00_soft_reset,
2437 	.chip_diag		= qlafx00_chip_diag,
2438 	.config_rings		= qlafx00_config_rings,
2439 	.reset_adapter		= qlafx00_soft_reset,
2440 	.nvram_config		= NULL,
2441 	.update_fw_options	= NULL,
2442 	.load_risc		= NULL,
2443 	.pci_info_str		= qlafx00_pci_info_str,
2444 	.fw_version_str		= qlafx00_fw_version_str,
2445 	.intr_handler		= qlafx00_intr_handler,
2446 	.enable_intrs		= qlafx00_enable_intrs,
2447 	.disable_intrs		= qlafx00_disable_intrs,
2448 	.abort_command		= qla24xx_async_abort_command,
2449 	.target_reset		= qlafx00_abort_target,
2450 	.lun_reset		= qlafx00_lun_reset,
2451 	.fabric_login		= NULL,
2452 	.fabric_logout		= NULL,
2453 	.calc_req_entries	= NULL,
2454 	.build_iocbs		= NULL,
2455 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2456 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2457 	.read_nvram		= qla24xx_read_nvram_data,
2458 	.write_nvram		= qla24xx_write_nvram_data,
2459 	.fw_dump		= NULL,
2460 	.beacon_on		= qla24xx_beacon_on,
2461 	.beacon_off		= qla24xx_beacon_off,
2462 	.beacon_blink		= NULL,
2463 	.read_optrom		= qla24xx_read_optrom_data,
2464 	.write_optrom		= qla24xx_write_optrom_data,
2465 	.get_flash_version	= qla24xx_get_flash_version,
2466 	.start_scsi		= qlafx00_start_scsi,
2467 	.start_scsi_mq          = NULL,
2468 	.abort_isp		= qlafx00_abort_isp,
2469 	.iospace_config		= qlafx00_iospace_config,
2470 	.initialize_adapter	= qlafx00_initialize_adapter,
2471 };
2472 
2473 static struct isp_operations qla27xx_isp_ops = {
2474 	.pci_config		= qla25xx_pci_config,
2475 	.reset_chip		= qla24xx_reset_chip,
2476 	.chip_diag		= qla24xx_chip_diag,
2477 	.config_rings		= qla24xx_config_rings,
2478 	.reset_adapter		= qla24xx_reset_adapter,
2479 	.nvram_config		= qla81xx_nvram_config,
2480 	.update_fw_options	= qla81xx_update_fw_options,
2481 	.load_risc		= qla81xx_load_risc,
2482 	.pci_info_str		= qla24xx_pci_info_str,
2483 	.fw_version_str		= qla24xx_fw_version_str,
2484 	.intr_handler		= qla24xx_intr_handler,
2485 	.enable_intrs		= qla24xx_enable_intrs,
2486 	.disable_intrs		= qla24xx_disable_intrs,
2487 	.abort_command		= qla24xx_abort_command,
2488 	.target_reset		= qla24xx_abort_target,
2489 	.lun_reset		= qla24xx_lun_reset,
2490 	.fabric_login		= qla24xx_login_fabric,
2491 	.fabric_logout		= qla24xx_fabric_logout,
2492 	.calc_req_entries	= NULL,
2493 	.build_iocbs		= NULL,
2494 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2495 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2496 	.read_nvram		= NULL,
2497 	.write_nvram		= NULL,
2498 	.fw_dump		= qla27xx_fwdump,
2499 	.beacon_on		= qla24xx_beacon_on,
2500 	.beacon_off		= qla24xx_beacon_off,
2501 	.beacon_blink		= qla83xx_beacon_blink,
2502 	.read_optrom		= qla25xx_read_optrom_data,
2503 	.write_optrom		= qla24xx_write_optrom_data,
2504 	.get_flash_version	= qla24xx_get_flash_version,
2505 	.start_scsi		= qla24xx_dif_start_scsi,
2506 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2507 	.abort_isp		= qla2x00_abort_isp,
2508 	.iospace_config		= qla83xx_iospace_config,
2509 	.initialize_adapter	= qla2x00_initialize_adapter,
2510 };
2511 
2512 static inline void
2513 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2514 {
2515 	ha->device_type = DT_EXTENDED_IDS;
2516 	switch (ha->pdev->device) {
2517 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2518 		ha->isp_type |= DT_ISP2100;
2519 		ha->device_type &= ~DT_EXTENDED_IDS;
2520 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2521 		break;
2522 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2523 		ha->isp_type |= DT_ISP2200;
2524 		ha->device_type &= ~DT_EXTENDED_IDS;
2525 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2526 		break;
2527 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2528 		ha->isp_type |= DT_ISP2300;
2529 		ha->device_type |= DT_ZIO_SUPPORTED;
2530 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2531 		break;
2532 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2533 		ha->isp_type |= DT_ISP2312;
2534 		ha->device_type |= DT_ZIO_SUPPORTED;
2535 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2536 		break;
2537 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2538 		ha->isp_type |= DT_ISP2322;
2539 		ha->device_type |= DT_ZIO_SUPPORTED;
2540 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2541 		    ha->pdev->subsystem_device == 0x0170)
2542 			ha->device_type |= DT_OEM_001;
2543 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2544 		break;
2545 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2546 		ha->isp_type |= DT_ISP6312;
2547 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2548 		break;
2549 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2550 		ha->isp_type |= DT_ISP6322;
2551 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2552 		break;
2553 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2554 		ha->isp_type |= DT_ISP2422;
2555 		ha->device_type |= DT_ZIO_SUPPORTED;
2556 		ha->device_type |= DT_FWI2;
2557 		ha->device_type |= DT_IIDMA;
2558 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2559 		break;
2560 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2561 		ha->isp_type |= DT_ISP2432;
2562 		ha->device_type |= DT_ZIO_SUPPORTED;
2563 		ha->device_type |= DT_FWI2;
2564 		ha->device_type |= DT_IIDMA;
2565 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2566 		break;
2567 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2568 		ha->isp_type |= DT_ISP8432;
2569 		ha->device_type |= DT_ZIO_SUPPORTED;
2570 		ha->device_type |= DT_FWI2;
2571 		ha->device_type |= DT_IIDMA;
2572 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2573 		break;
2574 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2575 		ha->isp_type |= DT_ISP5422;
2576 		ha->device_type |= DT_FWI2;
2577 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2578 		break;
2579 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2580 		ha->isp_type |= DT_ISP5432;
2581 		ha->device_type |= DT_FWI2;
2582 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2583 		break;
2584 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2585 		ha->isp_type |= DT_ISP2532;
2586 		ha->device_type |= DT_ZIO_SUPPORTED;
2587 		ha->device_type |= DT_FWI2;
2588 		ha->device_type |= DT_IIDMA;
2589 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2590 		break;
2591 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2592 		ha->isp_type |= DT_ISP8001;
2593 		ha->device_type |= DT_ZIO_SUPPORTED;
2594 		ha->device_type |= DT_FWI2;
2595 		ha->device_type |= DT_IIDMA;
2596 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2597 		break;
2598 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2599 		ha->isp_type |= DT_ISP8021;
2600 		ha->device_type |= DT_ZIO_SUPPORTED;
2601 		ha->device_type |= DT_FWI2;
2602 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2603 		/* Initialize 82XX ISP flags */
2604 		qla82xx_init_flags(ha);
2605 		break;
2606 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2607 		ha->isp_type |= DT_ISP8044;
2608 		ha->device_type |= DT_ZIO_SUPPORTED;
2609 		ha->device_type |= DT_FWI2;
2610 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2611 		/* Initialize 82XX ISP flags */
2612 		qla82xx_init_flags(ha);
2613 		break;
2614 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2615 		ha->isp_type |= DT_ISP2031;
2616 		ha->device_type |= DT_ZIO_SUPPORTED;
2617 		ha->device_type |= DT_FWI2;
2618 		ha->device_type |= DT_IIDMA;
2619 		ha->device_type |= DT_T10_PI;
2620 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2621 		break;
2622 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2623 		ha->isp_type |= DT_ISP8031;
2624 		ha->device_type |= DT_ZIO_SUPPORTED;
2625 		ha->device_type |= DT_FWI2;
2626 		ha->device_type |= DT_IIDMA;
2627 		ha->device_type |= DT_T10_PI;
2628 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2629 		break;
2630 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2631 		ha->isp_type |= DT_ISPFX00;
2632 		break;
2633 	case PCI_DEVICE_ID_QLOGIC_ISP2071:
2634 		ha->isp_type |= DT_ISP2071;
2635 		ha->device_type |= DT_ZIO_SUPPORTED;
2636 		ha->device_type |= DT_FWI2;
2637 		ha->device_type |= DT_IIDMA;
2638 		ha->device_type |= DT_T10_PI;
2639 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2640 		break;
2641 	case PCI_DEVICE_ID_QLOGIC_ISP2271:
2642 		ha->isp_type |= DT_ISP2271;
2643 		ha->device_type |= DT_ZIO_SUPPORTED;
2644 		ha->device_type |= DT_FWI2;
2645 		ha->device_type |= DT_IIDMA;
2646 		ha->device_type |= DT_T10_PI;
2647 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2648 		break;
2649 	case PCI_DEVICE_ID_QLOGIC_ISP2261:
2650 		ha->isp_type |= DT_ISP2261;
2651 		ha->device_type |= DT_ZIO_SUPPORTED;
2652 		ha->device_type |= DT_FWI2;
2653 		ha->device_type |= DT_IIDMA;
2654 		ha->device_type |= DT_T10_PI;
2655 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2656 		break;
2657 	case PCI_DEVICE_ID_QLOGIC_ISP2081:
2658 	case PCI_DEVICE_ID_QLOGIC_ISP2089:
2659 		ha->isp_type |= DT_ISP2081;
2660 		ha->device_type |= DT_ZIO_SUPPORTED;
2661 		ha->device_type |= DT_FWI2;
2662 		ha->device_type |= DT_IIDMA;
2663 		ha->device_type |= DT_T10_PI;
2664 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2665 		break;
2666 	case PCI_DEVICE_ID_QLOGIC_ISP2281:
2667 	case PCI_DEVICE_ID_QLOGIC_ISP2289:
2668 		ha->isp_type |= DT_ISP2281;
2669 		ha->device_type |= DT_ZIO_SUPPORTED;
2670 		ha->device_type |= DT_FWI2;
2671 		ha->device_type |= DT_IIDMA;
2672 		ha->device_type |= DT_T10_PI;
2673 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2674 		break;
2675 	}
2676 
2677 	if (IS_QLA82XX(ha))
2678 		ha->port_no = ha->portnum & 1;
2679 	else {
2680 		/* Get adapter physical port no from interrupt pin register. */
2681 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2682 		if (IS_QLA25XX(ha) || IS_QLA2031(ha) ||
2683 		    IS_QLA27XX(ha) || IS_QLA28XX(ha))
2684 			ha->port_no--;
2685 		else
2686 			ha->port_no = !(ha->port_no & 1);
2687 	}
2688 
2689 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2690 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2691 	    ha->device_type, ha->port_no, ha->fw_srisc_address);
2692 }
2693 
2694 static void
2695 qla2xxx_scan_start(struct Scsi_Host *shost)
2696 {
2697 	scsi_qla_host_t *vha = shost_priv(shost);
2698 
2699 	if (vha->hw->flags.running_gold_fw)
2700 		return;
2701 
2702 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2703 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2704 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2705 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2706 }
2707 
2708 static int
2709 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2710 {
2711 	scsi_qla_host_t *vha = shost_priv(shost);
2712 
2713 	if (test_bit(UNLOADING, &vha->dpc_flags))
2714 		return 1;
2715 	if (!vha->host)
2716 		return 1;
2717 	if (time > vha->hw->loop_reset_delay * HZ)
2718 		return 1;
2719 
2720 	return atomic_read(&vha->loop_state) == LOOP_READY;
2721 }
2722 
2723 static void qla2x00_iocb_work_fn(struct work_struct *work)
2724 {
2725 	struct scsi_qla_host *vha = container_of(work,
2726 		struct scsi_qla_host, iocb_work);
2727 	struct qla_hw_data *ha = vha->hw;
2728 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
2729 	int i = 2;
2730 	unsigned long flags;
2731 
2732 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
2733 		return;
2734 
2735 	while (!list_empty(&vha->work_list) && i > 0) {
2736 		qla2x00_do_work(vha);
2737 		i--;
2738 	}
2739 
2740 	spin_lock_irqsave(&vha->work_lock, flags);
2741 	clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
2742 	spin_unlock_irqrestore(&vha->work_lock, flags);
2743 }
2744 
2745 /*
2746  * PCI driver interface
2747  */
2748 static int
2749 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2750 {
2751 	int	ret = -ENODEV;
2752 	struct Scsi_Host *host;
2753 	scsi_qla_host_t *base_vha = NULL;
2754 	struct qla_hw_data *ha;
2755 	char pci_info[30];
2756 	char fw_str[30], wq_name[30];
2757 	struct scsi_host_template *sht;
2758 	int bars, mem_only = 0;
2759 	uint16_t req_length = 0, rsp_length = 0;
2760 	struct req_que *req = NULL;
2761 	struct rsp_que *rsp = NULL;
2762 	int i;
2763 
2764 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2765 	sht = &qla2xxx_driver_template;
2766 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2767 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2768 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2769 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2770 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2771 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2772 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2773 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2774 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2775 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2776 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2777 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
2778 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
2779 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
2780 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261 ||
2781 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2081 ||
2782 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2281 ||
2783 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2089 ||
2784 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2289) {
2785 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2786 		mem_only = 1;
2787 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2788 		    "Mem only adapter.\n");
2789 	}
2790 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2791 	    "Bars=%d.\n", bars);
2792 
2793 	if (mem_only) {
2794 		if (pci_enable_device_mem(pdev))
2795 			return ret;
2796 	} else {
2797 		if (pci_enable_device(pdev))
2798 			return ret;
2799 	}
2800 
2801 	/* This may fail but that's ok */
2802 	pci_enable_pcie_error_reporting(pdev);
2803 
2804 	/* Turn off T10-DIF when FC-NVMe is enabled */
2805 	if (ql2xnvmeenable)
2806 		ql2xenabledif = 0;
2807 
2808 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2809 	if (!ha) {
2810 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2811 		    "Unable to allocate memory for ha.\n");
2812 		goto disable_device;
2813 	}
2814 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2815 	    "Memory allocated for ha=%p.\n", ha);
2816 	ha->pdev = pdev;
2817 	INIT_LIST_HEAD(&ha->tgt.q_full_list);
2818 	spin_lock_init(&ha->tgt.q_full_lock);
2819 	spin_lock_init(&ha->tgt.sess_lock);
2820 	spin_lock_init(&ha->tgt.atio_lock);
2821 
2822 	atomic_set(&ha->nvme_active_aen_cnt, 0);
2823 
2824 	/* Clear our data area */
2825 	ha->bars = bars;
2826 	ha->mem_only = mem_only;
2827 	spin_lock_init(&ha->hardware_lock);
2828 	spin_lock_init(&ha->vport_slock);
2829 	mutex_init(&ha->selflogin_lock);
2830 	mutex_init(&ha->optrom_mutex);
2831 
2832 	/* Set ISP-type information. */
2833 	qla2x00_set_isp_flags(ha);
2834 
2835 	/* Set EEH reset type to fundamental if required by hba */
2836 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2837 	    IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
2838 		pdev->needs_freset = 1;
2839 
2840 	ha->prev_topology = 0;
2841 	ha->init_cb_size = sizeof(init_cb_t);
2842 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
2843 	ha->optrom_size = OPTROM_SIZE_2300;
2844 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
2845 	atomic_set(&ha->num_pend_mbx_stage1, 0);
2846 	atomic_set(&ha->num_pend_mbx_stage2, 0);
2847 	atomic_set(&ha->num_pend_mbx_stage3, 0);
2848 	atomic_set(&ha->zio_threshold, DEFAULT_ZIO_THRESHOLD);
2849 	ha->last_zio_threshold = DEFAULT_ZIO_THRESHOLD;
2850 
2851 	/* Assign ISP specific operations. */
2852 	if (IS_QLA2100(ha)) {
2853 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2854 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2855 		req_length = REQUEST_ENTRY_CNT_2100;
2856 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2857 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2858 		ha->gid_list_info_size = 4;
2859 		ha->flash_conf_off = ~0;
2860 		ha->flash_data_off = ~0;
2861 		ha->nvram_conf_off = ~0;
2862 		ha->nvram_data_off = ~0;
2863 		ha->isp_ops = &qla2100_isp_ops;
2864 	} else if (IS_QLA2200(ha)) {
2865 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2866 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2867 		req_length = REQUEST_ENTRY_CNT_2200;
2868 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2869 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2870 		ha->gid_list_info_size = 4;
2871 		ha->flash_conf_off = ~0;
2872 		ha->flash_data_off = ~0;
2873 		ha->nvram_conf_off = ~0;
2874 		ha->nvram_data_off = ~0;
2875 		ha->isp_ops = &qla2100_isp_ops;
2876 	} else if (IS_QLA23XX(ha)) {
2877 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2878 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2879 		req_length = REQUEST_ENTRY_CNT_2200;
2880 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2881 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2882 		ha->gid_list_info_size = 6;
2883 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
2884 			ha->optrom_size = OPTROM_SIZE_2322;
2885 		ha->flash_conf_off = ~0;
2886 		ha->flash_data_off = ~0;
2887 		ha->nvram_conf_off = ~0;
2888 		ha->nvram_data_off = ~0;
2889 		ha->isp_ops = &qla2300_isp_ops;
2890 	} else if (IS_QLA24XX_TYPE(ha)) {
2891 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2892 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2893 		req_length = REQUEST_ENTRY_CNT_24XX;
2894 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2895 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2896 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2897 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2898 		ha->gid_list_info_size = 8;
2899 		ha->optrom_size = OPTROM_SIZE_24XX;
2900 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2901 		ha->isp_ops = &qla24xx_isp_ops;
2902 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2903 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2904 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2905 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2906 	} else if (IS_QLA25XX(ha)) {
2907 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2908 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2909 		req_length = REQUEST_ENTRY_CNT_24XX;
2910 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2911 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2912 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2913 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2914 		ha->gid_list_info_size = 8;
2915 		ha->optrom_size = OPTROM_SIZE_25XX;
2916 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2917 		ha->isp_ops = &qla25xx_isp_ops;
2918 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2919 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2920 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2921 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2922 	} else if (IS_QLA81XX(ha)) {
2923 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2924 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2925 		req_length = REQUEST_ENTRY_CNT_24XX;
2926 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2927 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2928 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2929 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2930 		ha->gid_list_info_size = 8;
2931 		ha->optrom_size = OPTROM_SIZE_81XX;
2932 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2933 		ha->isp_ops = &qla81xx_isp_ops;
2934 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2935 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2936 		ha->nvram_conf_off = ~0;
2937 		ha->nvram_data_off = ~0;
2938 	} else if (IS_QLA82XX(ha)) {
2939 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2940 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2941 		req_length = REQUEST_ENTRY_CNT_82XX;
2942 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2943 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2944 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2945 		ha->gid_list_info_size = 8;
2946 		ha->optrom_size = OPTROM_SIZE_82XX;
2947 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2948 		ha->isp_ops = &qla82xx_isp_ops;
2949 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2950 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2951 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2952 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2953 	} else if (IS_QLA8044(ha)) {
2954 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2955 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2956 		req_length = REQUEST_ENTRY_CNT_82XX;
2957 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2958 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2959 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2960 		ha->gid_list_info_size = 8;
2961 		ha->optrom_size = OPTROM_SIZE_83XX;
2962 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2963 		ha->isp_ops = &qla8044_isp_ops;
2964 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2965 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2966 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2967 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2968 	} else if (IS_QLA83XX(ha)) {
2969 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
2970 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2971 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2972 		req_length = REQUEST_ENTRY_CNT_83XX;
2973 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
2974 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2975 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2976 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2977 		ha->gid_list_info_size = 8;
2978 		ha->optrom_size = OPTROM_SIZE_83XX;
2979 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2980 		ha->isp_ops = &qla83xx_isp_ops;
2981 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2982 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2983 		ha->nvram_conf_off = ~0;
2984 		ha->nvram_data_off = ~0;
2985 	}  else if (IS_QLAFX00(ha)) {
2986 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
2987 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
2988 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
2989 		req_length = REQUEST_ENTRY_CNT_FX00;
2990 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
2991 		ha->isp_ops = &qlafx00_isp_ops;
2992 		ha->port_down_retry_count = 30; /* default value */
2993 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
2994 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
2995 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
2996 		ha->mr.fw_hbt_en = 1;
2997 		ha->mr.host_info_resend = false;
2998 		ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
2999 	} else if (IS_QLA27XX(ha)) {
3000 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3001 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3002 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3003 		req_length = REQUEST_ENTRY_CNT_83XX;
3004 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
3005 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3006 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3007 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3008 		ha->gid_list_info_size = 8;
3009 		ha->optrom_size = OPTROM_SIZE_83XX;
3010 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3011 		ha->isp_ops = &qla27xx_isp_ops;
3012 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
3013 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
3014 		ha->nvram_conf_off = ~0;
3015 		ha->nvram_data_off = ~0;
3016 	} else if (IS_QLA28XX(ha)) {
3017 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
3018 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
3019 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
3020 		req_length = REQUEST_ENTRY_CNT_24XX;
3021 		rsp_length = RESPONSE_ENTRY_CNT_2300;
3022 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
3023 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
3024 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
3025 		ha->gid_list_info_size = 8;
3026 		ha->optrom_size = OPTROM_SIZE_28XX;
3027 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
3028 		ha->isp_ops = &qla27xx_isp_ops;
3029 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_28XX;
3030 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_28XX;
3031 		ha->nvram_conf_off = ~0;
3032 		ha->nvram_data_off = ~0;
3033 	}
3034 
3035 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
3036 	    "mbx_count=%d, req_length=%d, "
3037 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
3038 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
3039 	    "max_fibre_devices=%d.\n",
3040 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
3041 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
3042 	    ha->nvram_npiv_size, ha->max_fibre_devices);
3043 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
3044 	    "isp_ops=%p, flash_conf_off=%d, "
3045 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
3046 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
3047 	    ha->nvram_conf_off, ha->nvram_data_off);
3048 
3049 	/* Configure PCI I/O space */
3050 	ret = ha->isp_ops->iospace_config(ha);
3051 	if (ret)
3052 		goto iospace_config_failed;
3053 
3054 	ql_log_pci(ql_log_info, pdev, 0x001d,
3055 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
3056 	    pdev->device, pdev->irq, ha->iobase);
3057 	mutex_init(&ha->vport_lock);
3058 	mutex_init(&ha->mq_lock);
3059 	init_completion(&ha->mbx_cmd_comp);
3060 	complete(&ha->mbx_cmd_comp);
3061 	init_completion(&ha->mbx_intr_comp);
3062 	init_completion(&ha->dcbx_comp);
3063 	init_completion(&ha->lb_portup_comp);
3064 
3065 	set_bit(0, (unsigned long *) ha->vp_idx_map);
3066 
3067 	qla2x00_config_dma_addressing(ha);
3068 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
3069 	    "64 Bit addressing is %s.\n",
3070 	    ha->flags.enable_64bit_addressing ? "enable" :
3071 	    "disable");
3072 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
3073 	if (ret) {
3074 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
3075 		    "Failed to allocate memory for adapter, aborting.\n");
3076 
3077 		goto probe_hw_failed;
3078 	}
3079 
3080 	req->max_q_depth = MAX_Q_DEPTH;
3081 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
3082 		req->max_q_depth = ql2xmaxqdepth;
3083 
3084 
3085 	base_vha = qla2x00_create_host(sht, ha);
3086 	if (!base_vha) {
3087 		ret = -ENOMEM;
3088 		goto probe_hw_failed;
3089 	}
3090 
3091 	pci_set_drvdata(pdev, base_vha);
3092 	set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3093 
3094 	host = base_vha->host;
3095 	base_vha->req = req;
3096 	if (IS_QLA2XXX_MIDTYPE(ha))
3097 		base_vha->mgmt_svr_loop_id =
3098 			qla2x00_reserve_mgmt_server_loop_id(base_vha);
3099 	else
3100 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
3101 						base_vha->vp_idx;
3102 
3103 	/* Setup fcport template structure. */
3104 	ha->mr.fcport.vha = base_vha;
3105 	ha->mr.fcport.port_type = FCT_UNKNOWN;
3106 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
3107 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
3108 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
3109 	ha->mr.fcport.scan_state = 1;
3110 
3111 	/* Set the SG table size based on ISP type */
3112 	if (!IS_FWI2_CAPABLE(ha)) {
3113 		if (IS_QLA2100(ha))
3114 			host->sg_tablesize = 32;
3115 	} else {
3116 		if (!IS_QLA82XX(ha))
3117 			host->sg_tablesize = QLA_SG_ALL;
3118 	}
3119 	host->max_id = ha->max_fibre_devices;
3120 	host->cmd_per_lun = 3;
3121 	host->unique_id = host->host_no;
3122 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
3123 		host->max_cmd_len = 32;
3124 	else
3125 		host->max_cmd_len = MAX_CMDSZ;
3126 	host->max_channel = MAX_BUSES - 1;
3127 	/* Older HBAs support only 16-bit LUNs */
3128 	if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
3129 	    ql2xmaxlun > 0xffff)
3130 		host->max_lun = 0xffff;
3131 	else
3132 		host->max_lun = ql2xmaxlun;
3133 	host->transportt = qla2xxx_transport_template;
3134 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
3135 
3136 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
3137 	    "max_id=%d this_id=%d "
3138 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
3139 	    "max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
3140 	    host->this_id, host->cmd_per_lun, host->unique_id,
3141 	    host->max_cmd_len, host->max_channel, host->max_lun,
3142 	    host->transportt, sht->vendor_id);
3143 
3144 	INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn);
3145 
3146 	/* Set up the irqs */
3147 	ret = qla2x00_request_irqs(ha, rsp);
3148 	if (ret)
3149 		goto probe_failed;
3150 
3151 	/* Alloc arrays of request and response ring ptrs */
3152 	ret = qla2x00_alloc_queues(ha, req, rsp);
3153 	if (ret) {
3154 		ql_log(ql_log_fatal, base_vha, 0x003d,
3155 		    "Failed to allocate memory for queue pointers..."
3156 		    "aborting.\n");
3157 		goto probe_failed;
3158 	}
3159 
3160 	if (ha->mqenable) {
3161 		/* number of hardware queues supported by blk/scsi-mq*/
3162 		host->nr_hw_queues = ha->max_qpairs;
3163 
3164 		ql_dbg(ql_dbg_init, base_vha, 0x0192,
3165 			"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
3166 	} else {
3167 		if (ql2xnvmeenable) {
3168 			host->nr_hw_queues = ha->max_qpairs;
3169 			ql_dbg(ql_dbg_init, base_vha, 0x0194,
3170 			    "FC-NVMe support is enabled, HW queues=%d\n",
3171 			    host->nr_hw_queues);
3172 		} else {
3173 			ql_dbg(ql_dbg_init, base_vha, 0x0193,
3174 			    "blk/scsi-mq disabled.\n");
3175 		}
3176 	}
3177 
3178 	qlt_probe_one_stage1(base_vha, ha);
3179 
3180 	pci_save_state(pdev);
3181 
3182 	/* Assign back pointers */
3183 	rsp->req = req;
3184 	req->rsp = rsp;
3185 
3186 	if (IS_QLAFX00(ha)) {
3187 		ha->rsp_q_map[0] = rsp;
3188 		ha->req_q_map[0] = req;
3189 		set_bit(0, ha->req_qid_map);
3190 		set_bit(0, ha->rsp_qid_map);
3191 	}
3192 
3193 	/* FWI2-capable only. */
3194 	req->req_q_in = &ha->iobase->isp24.req_q_in;
3195 	req->req_q_out = &ha->iobase->isp24.req_q_out;
3196 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
3197 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
3198 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3199 	    IS_QLA28XX(ha)) {
3200 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
3201 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
3202 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
3203 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
3204 	}
3205 
3206 	if (IS_QLAFX00(ha)) {
3207 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
3208 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
3209 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
3210 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
3211 	}
3212 
3213 	if (IS_P3P_TYPE(ha)) {
3214 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
3215 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
3216 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
3217 	}
3218 
3219 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
3220 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3221 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3222 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
3223 	    "req->req_q_in=%p req->req_q_out=%p "
3224 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3225 	    req->req_q_in, req->req_q_out,
3226 	    rsp->rsp_q_in, rsp->rsp_q_out);
3227 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
3228 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3229 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3230 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
3231 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3232 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
3233 
3234 	ha->wq = alloc_workqueue("qla2xxx_wq", 0, 0);
3235 
3236 	if (ha->isp_ops->initialize_adapter(base_vha)) {
3237 		ql_log(ql_log_fatal, base_vha, 0x00d6,
3238 		    "Failed to initialize adapter - Adapter flags %x.\n",
3239 		    base_vha->device_flags);
3240 
3241 		if (IS_QLA82XX(ha)) {
3242 			qla82xx_idc_lock(ha);
3243 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3244 				QLA8XXX_DEV_FAILED);
3245 			qla82xx_idc_unlock(ha);
3246 			ql_log(ql_log_fatal, base_vha, 0x00d7,
3247 			    "HW State: FAILED.\n");
3248 		} else if (IS_QLA8044(ha)) {
3249 			qla8044_idc_lock(ha);
3250 			qla8044_wr_direct(base_vha,
3251 				QLA8044_CRB_DEV_STATE_INDEX,
3252 				QLA8XXX_DEV_FAILED);
3253 			qla8044_idc_unlock(ha);
3254 			ql_log(ql_log_fatal, base_vha, 0x0150,
3255 			    "HW State: FAILED.\n");
3256 		}
3257 
3258 		ret = -ENODEV;
3259 		goto probe_failed;
3260 	}
3261 
3262 	if (IS_QLAFX00(ha))
3263 		host->can_queue = QLAFX00_MAX_CANQUEUE;
3264 	else
3265 		host->can_queue = req->num_outstanding_cmds - 10;
3266 
3267 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
3268 	    "can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
3269 	    host->can_queue, base_vha->req,
3270 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
3271 
3272 	if (ha->mqenable) {
3273 		bool startit = false;
3274 
3275 		if (QLA_TGT_MODE_ENABLED())
3276 			startit = false;
3277 
3278 		if (ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED)
3279 			startit = true;
3280 
3281 		/* Create start of day qpairs for Block MQ */
3282 		for (i = 0; i < ha->max_qpairs; i++)
3283 			qla2xxx_create_qpair(base_vha, 5, 0, startit);
3284 	}
3285 
3286 	if (ha->flags.running_gold_fw)
3287 		goto skip_dpc;
3288 
3289 	/*
3290 	 * Startup the kernel thread for this host adapter
3291 	 */
3292 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
3293 	    "%s_dpc", base_vha->host_str);
3294 	if (IS_ERR(ha->dpc_thread)) {
3295 		ql_log(ql_log_fatal, base_vha, 0x00ed,
3296 		    "Failed to start DPC thread.\n");
3297 		ret = PTR_ERR(ha->dpc_thread);
3298 		ha->dpc_thread = NULL;
3299 		goto probe_failed;
3300 	}
3301 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
3302 	    "DPC thread started successfully.\n");
3303 
3304 	/*
3305 	 * If we're not coming up in initiator mode, we might sit for
3306 	 * a while without waking up the dpc thread, which leads to a
3307 	 * stuck process warning.  So just kick the dpc once here and
3308 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
3309 	 */
3310 	qla2xxx_wake_dpc(base_vha);
3311 
3312 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
3313 
3314 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
3315 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
3316 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
3317 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
3318 
3319 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
3320 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
3321 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
3322 		INIT_WORK(&ha->idc_state_handler,
3323 		    qla83xx_idc_state_handler_work);
3324 		INIT_WORK(&ha->nic_core_unrecoverable,
3325 		    qla83xx_nic_core_unrecoverable_work);
3326 	}
3327 
3328 skip_dpc:
3329 	list_add_tail(&base_vha->list, &ha->vp_list);
3330 	base_vha->host->irq = ha->pdev->irq;
3331 
3332 	/* Initialized the timer */
3333 	qla2x00_start_timer(base_vha, WATCH_INTERVAL);
3334 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
3335 	    "Started qla2x00_timer with "
3336 	    "interval=%d.\n", WATCH_INTERVAL);
3337 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
3338 	    "Detected hba at address=%p.\n",
3339 	    ha);
3340 
3341 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
3342 		if (ha->fw_attributes & BIT_4) {
3343 			int prot = 0, guard;
3344 
3345 			base_vha->flags.difdix_supported = 1;
3346 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
3347 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3348 			if (ql2xenabledif == 1)
3349 				prot = SHOST_DIX_TYPE0_PROTECTION;
3350 			if (ql2xprotmask)
3351 				scsi_host_set_prot(host, ql2xprotmask);
3352 			else
3353 				scsi_host_set_prot(host,
3354 				    prot | SHOST_DIF_TYPE1_PROTECTION
3355 				    | SHOST_DIF_TYPE2_PROTECTION
3356 				    | SHOST_DIF_TYPE3_PROTECTION
3357 				    | SHOST_DIX_TYPE1_PROTECTION
3358 				    | SHOST_DIX_TYPE2_PROTECTION
3359 				    | SHOST_DIX_TYPE3_PROTECTION);
3360 
3361 			guard = SHOST_DIX_GUARD_CRC;
3362 
3363 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
3364 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
3365 				guard |= SHOST_DIX_GUARD_IP;
3366 
3367 			if (ql2xprotguard)
3368 				scsi_host_set_guard(host, ql2xprotguard);
3369 			else
3370 				scsi_host_set_guard(host, guard);
3371 		} else
3372 			base_vha->flags.difdix_supported = 0;
3373 	}
3374 
3375 	ha->isp_ops->enable_intrs(ha);
3376 
3377 	if (IS_QLAFX00(ha)) {
3378 		ret = qlafx00_fx_disc(base_vha,
3379 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
3380 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
3381 		    QLA_SG_ALL : 128;
3382 	}
3383 
3384 	ret = scsi_add_host(host, &pdev->dev);
3385 	if (ret)
3386 		goto probe_failed;
3387 
3388 	base_vha->flags.init_done = 1;
3389 	base_vha->flags.online = 1;
3390 	ha->prev_minidump_failed = 0;
3391 
3392 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
3393 	    "Init done and hba is online.\n");
3394 
3395 	if (qla_ini_mode_enabled(base_vha) ||
3396 		qla_dual_mode_enabled(base_vha))
3397 		scsi_scan_host(host);
3398 	else
3399 		ql_dbg(ql_dbg_init, base_vha, 0x0122,
3400 			"skipping scsi_scan_host() for non-initiator port\n");
3401 
3402 	qla2x00_alloc_sysfs_attr(base_vha);
3403 
3404 	if (IS_QLAFX00(ha)) {
3405 		ret = qlafx00_fx_disc(base_vha,
3406 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
3407 
3408 		/* Register system information */
3409 		ret =  qlafx00_fx_disc(base_vha,
3410 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
3411 	}
3412 
3413 	qla2x00_init_host_attr(base_vha);
3414 
3415 	qla2x00_dfs_setup(base_vha);
3416 
3417 	ql_log(ql_log_info, base_vha, 0x00fb,
3418 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
3419 	ql_log(ql_log_info, base_vha, 0x00fc,
3420 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
3421 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
3422 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
3423 	    base_vha->host_no,
3424 	    ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
3425 
3426 	qlt_add_target(ha, base_vha);
3427 
3428 	clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3429 
3430 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3431 		return -ENODEV;
3432 
3433 	if (ha->flags.detected_lr_sfp) {
3434 		ql_log(ql_log_info, base_vha, 0xffff,
3435 		    "Reset chip to pick up LR SFP setting\n");
3436 		set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
3437 		qla2xxx_wake_dpc(base_vha);
3438 	}
3439 
3440 	return 0;
3441 
3442 probe_failed:
3443 	if (base_vha->timer_active)
3444 		qla2x00_stop_timer(base_vha);
3445 	base_vha->flags.online = 0;
3446 	if (ha->dpc_thread) {
3447 		struct task_struct *t = ha->dpc_thread;
3448 
3449 		ha->dpc_thread = NULL;
3450 		kthread_stop(t);
3451 	}
3452 
3453 	qla2x00_free_device(base_vha);
3454 	scsi_host_put(base_vha->host);
3455 	/*
3456 	 * Need to NULL out local req/rsp after
3457 	 * qla2x00_free_device => qla2x00_free_queues frees
3458 	 * what these are pointing to. Or else we'll
3459 	 * fall over below in qla2x00_free_req/rsp_que.
3460 	 */
3461 	req = NULL;
3462 	rsp = NULL;
3463 
3464 probe_hw_failed:
3465 	qla2x00_mem_free(ha);
3466 	qla2x00_free_req_que(ha, req);
3467 	qla2x00_free_rsp_que(ha, rsp);
3468 	qla2x00_clear_drv_active(ha);
3469 
3470 iospace_config_failed:
3471 	if (IS_P3P_TYPE(ha)) {
3472 		if (!ha->nx_pcibase)
3473 			iounmap((device_reg_t *)ha->nx_pcibase);
3474 		if (!ql2xdbwr)
3475 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3476 	} else {
3477 		if (ha->iobase)
3478 			iounmap(ha->iobase);
3479 		if (ha->cregbase)
3480 			iounmap(ha->cregbase);
3481 	}
3482 	pci_release_selected_regions(ha->pdev, ha->bars);
3483 	kfree(ha);
3484 
3485 disable_device:
3486 	pci_disable_device(pdev);
3487 	return ret;
3488 }
3489 
3490 static void
3491 qla2x00_shutdown(struct pci_dev *pdev)
3492 {
3493 	scsi_qla_host_t *vha;
3494 	struct qla_hw_data  *ha;
3495 
3496 	vha = pci_get_drvdata(pdev);
3497 	ha = vha->hw;
3498 
3499 	ql_log(ql_log_info, vha, 0xfffa,
3500 		"Adapter shutdown\n");
3501 
3502 	/*
3503 	 * Prevent future board_disable and wait
3504 	 * until any pending board_disable has completed.
3505 	 */
3506 	set_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags);
3507 	cancel_work_sync(&ha->board_disable);
3508 
3509 	if (!atomic_read(&pdev->enable_cnt))
3510 		return;
3511 
3512 	/* Notify ISPFX00 firmware */
3513 	if (IS_QLAFX00(ha))
3514 		qlafx00_driver_shutdown(vha, 20);
3515 
3516 	/* Turn-off FCE trace */
3517 	if (ha->flags.fce_enabled) {
3518 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3519 		ha->flags.fce_enabled = 0;
3520 	}
3521 
3522 	/* Turn-off EFT trace */
3523 	if (ha->eft)
3524 		qla2x00_disable_eft_trace(vha);
3525 
3526 	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3527 	    IS_QLA28XX(ha)) {
3528 		if (ha->flags.fw_started)
3529 			qla2x00_abort_isp_cleanup(vha);
3530 	} else {
3531 		/* Stop currently executing firmware. */
3532 		qla2x00_try_to_stop_firmware(vha);
3533 	}
3534 
3535 	/* Turn adapter off line */
3536 	vha->flags.online = 0;
3537 
3538 	/* turn-off interrupts on the card */
3539 	if (ha->interrupts_on) {
3540 		vha->flags.init_done = 0;
3541 		ha->isp_ops->disable_intrs(ha);
3542 	}
3543 
3544 	qla2x00_free_irqs(vha);
3545 
3546 	qla2x00_free_fw_dump(ha);
3547 
3548 	pci_disable_device(pdev);
3549 	ql_log(ql_log_info, vha, 0xfffe,
3550 		"Adapter shutdown successfully.\n");
3551 }
3552 
3553 /* Deletes all the virtual ports for a given ha */
3554 static void
3555 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
3556 {
3557 	scsi_qla_host_t *vha;
3558 	unsigned long flags;
3559 
3560 	mutex_lock(&ha->vport_lock);
3561 	while (ha->cur_vport_count) {
3562 		spin_lock_irqsave(&ha->vport_slock, flags);
3563 
3564 		BUG_ON(base_vha->list.next == &ha->vp_list);
3565 		/* This assumes first entry in ha->vp_list is always base vha */
3566 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3567 		scsi_host_get(vha->host);
3568 
3569 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3570 		mutex_unlock(&ha->vport_lock);
3571 
3572 		qla_nvme_delete(vha);
3573 
3574 		fc_vport_terminate(vha->fc_vport);
3575 		scsi_host_put(vha->host);
3576 
3577 		mutex_lock(&ha->vport_lock);
3578 	}
3579 	mutex_unlock(&ha->vport_lock);
3580 }
3581 
3582 /* Stops all deferred work threads */
3583 static void
3584 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
3585 {
3586 	/* Cancel all work and destroy DPC workqueues */
3587 	if (ha->dpc_lp_wq) {
3588 		cancel_work_sync(&ha->idc_aen);
3589 		destroy_workqueue(ha->dpc_lp_wq);
3590 		ha->dpc_lp_wq = NULL;
3591 	}
3592 
3593 	if (ha->dpc_hp_wq) {
3594 		cancel_work_sync(&ha->nic_core_reset);
3595 		cancel_work_sync(&ha->idc_state_handler);
3596 		cancel_work_sync(&ha->nic_core_unrecoverable);
3597 		destroy_workqueue(ha->dpc_hp_wq);
3598 		ha->dpc_hp_wq = NULL;
3599 	}
3600 
3601 	/* Kill the kernel thread for this host */
3602 	if (ha->dpc_thread) {
3603 		struct task_struct *t = ha->dpc_thread;
3604 
3605 		/*
3606 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3607 		 * so we need to zero it out.
3608 		 */
3609 		ha->dpc_thread = NULL;
3610 		kthread_stop(t);
3611 	}
3612 }
3613 
3614 static void
3615 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3616 {
3617 	if (IS_QLA82XX(ha)) {
3618 
3619 		iounmap((device_reg_t *)ha->nx_pcibase);
3620 		if (!ql2xdbwr)
3621 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3622 	} else {
3623 		if (ha->iobase)
3624 			iounmap(ha->iobase);
3625 
3626 		if (ha->cregbase)
3627 			iounmap(ha->cregbase);
3628 
3629 		if (ha->mqiobase)
3630 			iounmap(ha->mqiobase);
3631 
3632 		if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
3633 		    ha->msixbase)
3634 			iounmap(ha->msixbase);
3635 	}
3636 }
3637 
3638 static void
3639 qla2x00_clear_drv_active(struct qla_hw_data *ha)
3640 {
3641 	if (IS_QLA8044(ha)) {
3642 		qla8044_idc_lock(ha);
3643 		qla8044_clear_drv_active(ha);
3644 		qla8044_idc_unlock(ha);
3645 	} else if (IS_QLA82XX(ha)) {
3646 		qla82xx_idc_lock(ha);
3647 		qla82xx_clear_drv_active(ha);
3648 		qla82xx_idc_unlock(ha);
3649 	}
3650 }
3651 
3652 static void
3653 qla2x00_remove_one(struct pci_dev *pdev)
3654 {
3655 	scsi_qla_host_t *base_vha;
3656 	struct qla_hw_data  *ha;
3657 
3658 	base_vha = pci_get_drvdata(pdev);
3659 	ha = base_vha->hw;
3660 	ql_log(ql_log_info, base_vha, 0xb079,
3661 	    "Removing driver\n");
3662 
3663 	/* Indicate device removal to prevent future board_disable and wait
3664 	 * until any pending board_disable has completed. */
3665 	set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
3666 	cancel_work_sync(&ha->board_disable);
3667 
3668 	/*
3669 	 * If the PCI device is disabled then there was a PCI-disconnect and
3670 	 * qla2x00_disable_board_on_pci_error has taken care of most of the
3671 	 * resources.
3672 	 */
3673 	if (!atomic_read(&pdev->enable_cnt)) {
3674 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3675 		    base_vha->gnl.l, base_vha->gnl.ldma);
3676 
3677 		scsi_host_put(base_vha->host);
3678 		kfree(ha);
3679 		pci_set_drvdata(pdev, NULL);
3680 		return;
3681 	}
3682 	qla2x00_wait_for_hba_ready(base_vha);
3683 
3684 	if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
3685 	    IS_QLA28XX(ha)) {
3686 		if (ha->flags.fw_started)
3687 			qla2x00_abort_isp_cleanup(base_vha);
3688 	} else if (!IS_QLAFX00(ha)) {
3689 		if (IS_QLA8031(ha)) {
3690 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3691 			    "Clearing fcoe driver presence.\n");
3692 			if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3693 				ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3694 				    "Error while clearing DRV-Presence.\n");
3695 		}
3696 
3697 		qla2x00_try_to_stop_firmware(base_vha);
3698 	}
3699 
3700 	qla2x00_wait_for_sess_deletion(base_vha);
3701 
3702 	/*
3703 	 * if UNLOAD flag is already set, then continue unload,
3704 	 * where it was set first.
3705 	 */
3706 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3707 		return;
3708 
3709 	set_bit(UNLOADING, &base_vha->dpc_flags);
3710 
3711 	qla_nvme_delete(base_vha);
3712 
3713 	dma_free_coherent(&ha->pdev->dev,
3714 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
3715 
3716 	vfree(base_vha->scan.l);
3717 
3718 	if (IS_QLAFX00(ha))
3719 		qlafx00_driver_shutdown(base_vha, 20);
3720 
3721 	qla2x00_delete_all_vps(ha, base_vha);
3722 
3723 	qla2x00_dfs_remove(base_vha);
3724 
3725 	qla84xx_put_chip(base_vha);
3726 
3727 	/* Disable timer */
3728 	if (base_vha->timer_active)
3729 		qla2x00_stop_timer(base_vha);
3730 
3731 	base_vha->flags.online = 0;
3732 
3733 	/* free DMA memory */
3734 	if (ha->exlogin_buf)
3735 		qla2x00_free_exlogin_buffer(ha);
3736 
3737 	/* free DMA memory */
3738 	if (ha->exchoffld_buf)
3739 		qla2x00_free_exchoffld_buffer(ha);
3740 
3741 	qla2x00_destroy_deferred_work(ha);
3742 
3743 	qlt_remove_target(ha, base_vha);
3744 
3745 	qla2x00_free_sysfs_attr(base_vha, true);
3746 
3747 	fc_remove_host(base_vha->host);
3748 	qlt_remove_target_resources(ha);
3749 
3750 	scsi_remove_host(base_vha->host);
3751 
3752 	qla2x00_free_device(base_vha);
3753 
3754 	qla2x00_clear_drv_active(ha);
3755 
3756 	scsi_host_put(base_vha->host);
3757 
3758 	qla2x00_unmap_iobases(ha);
3759 
3760 	pci_release_selected_regions(ha->pdev, ha->bars);
3761 	kfree(ha);
3762 
3763 	pci_disable_pcie_error_reporting(pdev);
3764 
3765 	pci_disable_device(pdev);
3766 }
3767 
3768 static void
3769 qla2x00_free_device(scsi_qla_host_t *vha)
3770 {
3771 	struct qla_hw_data *ha = vha->hw;
3772 
3773 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3774 
3775 	/* Disable timer */
3776 	if (vha->timer_active)
3777 		qla2x00_stop_timer(vha);
3778 
3779 	qla25xx_delete_queues(vha);
3780 	vha->flags.online = 0;
3781 
3782 	/* turn-off interrupts on the card */
3783 	if (ha->interrupts_on) {
3784 		vha->flags.init_done = 0;
3785 		ha->isp_ops->disable_intrs(ha);
3786 	}
3787 
3788 	qla2x00_free_fcports(vha);
3789 
3790 	qla2x00_free_irqs(vha);
3791 
3792 	/* Flush the work queue and remove it */
3793 	if (ha->wq) {
3794 		flush_workqueue(ha->wq);
3795 		destroy_workqueue(ha->wq);
3796 		ha->wq = NULL;
3797 	}
3798 
3799 
3800 	qla2x00_mem_free(ha);
3801 
3802 	qla82xx_md_free(vha);
3803 
3804 	qla2x00_free_queues(ha);
3805 }
3806 
3807 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3808 {
3809 	fc_port_t *fcport, *tfcport;
3810 
3811 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list)
3812 		qla2x00_free_fcport(fcport);
3813 }
3814 
3815 static inline void
3816 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
3817     int defer)
3818 {
3819 	struct fc_rport *rport;
3820 	scsi_qla_host_t *base_vha;
3821 	unsigned long flags;
3822 
3823 	if (!fcport->rport)
3824 		return;
3825 
3826 	rport = fcport->rport;
3827 	if (defer) {
3828 		base_vha = pci_get_drvdata(vha->hw->pdev);
3829 		spin_lock_irqsave(vha->host->host_lock, flags);
3830 		fcport->drport = rport;
3831 		spin_unlock_irqrestore(vha->host->host_lock, flags);
3832 		qlt_do_generation_tick(vha, &base_vha->total_fcport_update_gen);
3833 		set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3834 		qla2xxx_wake_dpc(base_vha);
3835 	} else {
3836 		int now;
3837 
3838 		if (rport) {
3839 			ql_dbg(ql_dbg_disc, fcport->vha, 0x2109,
3840 			    "%s %8phN. rport %p roles %x\n",
3841 			    __func__, fcport->port_name, rport,
3842 			    rport->roles);
3843 			fc_remote_port_delete(rport);
3844 		}
3845 		qlt_do_generation_tick(vha, &now);
3846 	}
3847 }
3848 
3849 /*
3850  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
3851  *
3852  * Input: ha = adapter block pointer.  fcport = port structure pointer.
3853  *
3854  * Return: None.
3855  *
3856  * Context:
3857  */
3858 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
3859     int do_login, int defer)
3860 {
3861 	if (IS_QLAFX00(vha->hw)) {
3862 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3863 		qla2x00_schedule_rport_del(vha, fcport, defer);
3864 		return;
3865 	}
3866 
3867 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
3868 	    vha->vp_idx == fcport->vha->vp_idx) {
3869 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3870 		qla2x00_schedule_rport_del(vha, fcport, defer);
3871 	}
3872 	/*
3873 	 * We may need to retry the login, so don't change the state of the
3874 	 * port but do the retries.
3875 	 */
3876 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
3877 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3878 
3879 	if (!do_login)
3880 		return;
3881 
3882 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3883 }
3884 
3885 /*
3886  * qla2x00_mark_all_devices_lost
3887  *	Updates fcport state when device goes offline.
3888  *
3889  * Input:
3890  *	ha = adapter block pointer.
3891  *	fcport = port structure pointer.
3892  *
3893  * Return:
3894  *	None.
3895  *
3896  * Context:
3897  */
3898 void
3899 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
3900 {
3901 	fc_port_t *fcport;
3902 
3903 	ql_dbg(ql_dbg_disc, vha, 0x20f1,
3904 	    "Mark all dev lost\n");
3905 
3906 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
3907 		fcport->scan_state = 0;
3908 		qlt_schedule_sess_for_deletion(fcport);
3909 
3910 		if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
3911 			continue;
3912 
3913 		/*
3914 		 * No point in marking the device as lost, if the device is
3915 		 * already DEAD.
3916 		 */
3917 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
3918 			continue;
3919 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
3920 			qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3921 			if (defer)
3922 				qla2x00_schedule_rport_del(vha, fcport, defer);
3923 			else if (vha->vp_idx == fcport->vha->vp_idx)
3924 				qla2x00_schedule_rport_del(vha, fcport, defer);
3925 		}
3926 	}
3927 }
3928 
3929 static void qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
3930 {
3931 	int i;
3932 
3933 	if (IS_FWI2_CAPABLE(ha))
3934 		return;
3935 
3936 	for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
3937 		set_bit(i, ha->loop_id_map);
3938 	set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
3939 	set_bit(BROADCAST, ha->loop_id_map);
3940 }
3941 
3942 /*
3943 * qla2x00_mem_alloc
3944 *      Allocates adapter memory.
3945 *
3946 * Returns:
3947 *      0  = success.
3948 *      !0  = failure.
3949 */
3950 static int
3951 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
3952 	struct req_que **req, struct rsp_que **rsp)
3953 {
3954 	char	name[16];
3955 
3956 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
3957 		&ha->init_cb_dma, GFP_KERNEL);
3958 	if (!ha->init_cb)
3959 		goto fail;
3960 
3961 	if (qlt_mem_alloc(ha) < 0)
3962 		goto fail_free_init_cb;
3963 
3964 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
3965 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
3966 	if (!ha->gid_list)
3967 		goto fail_free_tgt_mem;
3968 
3969 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
3970 	if (!ha->srb_mempool)
3971 		goto fail_free_gid_list;
3972 
3973 	if (IS_P3P_TYPE(ha)) {
3974 		/* Allocate cache for CT6 Ctx. */
3975 		if (!ctx_cachep) {
3976 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
3977 				sizeof(struct ct6_dsd), 0,
3978 				SLAB_HWCACHE_ALIGN, NULL);
3979 			if (!ctx_cachep)
3980 				goto fail_free_srb_mempool;
3981 		}
3982 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
3983 			ctx_cachep);
3984 		if (!ha->ctx_mempool)
3985 			goto fail_free_srb_mempool;
3986 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
3987 		    "ctx_cachep=%p ctx_mempool=%p.\n",
3988 		    ctx_cachep, ha->ctx_mempool);
3989 	}
3990 
3991 	/* Get memory for cached NVRAM */
3992 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
3993 	if (!ha->nvram)
3994 		goto fail_free_ctx_mempool;
3995 
3996 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
3997 		ha->pdev->device);
3998 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3999 		DMA_POOL_SIZE, 8, 0);
4000 	if (!ha->s_dma_pool)
4001 		goto fail_free_nvram;
4002 
4003 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
4004 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
4005 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
4006 
4007 	if (IS_P3P_TYPE(ha) || ql2xenabledif) {
4008 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4009 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
4010 		if (!ha->dl_dma_pool) {
4011 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
4012 			    "Failed to allocate memory for dl_dma_pool.\n");
4013 			goto fail_s_dma_pool;
4014 		}
4015 
4016 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
4017 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
4018 		if (!ha->fcp_cmnd_dma_pool) {
4019 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
4020 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
4021 			goto fail_dl_dma_pool;
4022 		}
4023 
4024 		if (ql2xenabledif) {
4025 			u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
4026 			struct dsd_dma *dsd, *nxt;
4027 			uint i;
4028 			/* Creata a DMA pool of buffers for DIF bundling */
4029 			ha->dif_bundl_pool = dma_pool_create(name,
4030 			    &ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
4031 			if (!ha->dif_bundl_pool) {
4032 				ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4033 				    "%s: failed create dif_bundl_pool\n",
4034 				    __func__);
4035 				goto fail_dif_bundl_dma_pool;
4036 			}
4037 
4038 			INIT_LIST_HEAD(&ha->pool.good.head);
4039 			INIT_LIST_HEAD(&ha->pool.unusable.head);
4040 			ha->pool.good.count = 0;
4041 			ha->pool.unusable.count = 0;
4042 			for (i = 0; i < 128; i++) {
4043 				dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
4044 				if (!dsd) {
4045 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4046 					    0xe0ee, "%s: failed alloc dsd\n",
4047 					    __func__);
4048 					return 1;
4049 				}
4050 				ha->dif_bundle_kallocs++;
4051 
4052 				dsd->dsd_addr = dma_pool_alloc(
4053 				    ha->dif_bundl_pool, GFP_ATOMIC,
4054 				    &dsd->dsd_list_dma);
4055 				if (!dsd->dsd_addr) {
4056 					ql_dbg_pci(ql_dbg_init, ha->pdev,
4057 					    0xe0ee,
4058 					    "%s: failed alloc ->dsd_addr\n",
4059 					    __func__);
4060 					kfree(dsd);
4061 					ha->dif_bundle_kallocs--;
4062 					continue;
4063 				}
4064 				ha->dif_bundle_dma_allocs++;
4065 
4066 				/*
4067 				 * if DMA buffer crosses 4G boundary,
4068 				 * put it on bad list
4069 				 */
4070 				if (MSD(dsd->dsd_list_dma) ^
4071 				    MSD(dsd->dsd_list_dma + bufsize)) {
4072 					list_add_tail(&dsd->list,
4073 					    &ha->pool.unusable.head);
4074 					ha->pool.unusable.count++;
4075 				} else {
4076 					list_add_tail(&dsd->list,
4077 					    &ha->pool.good.head);
4078 					ha->pool.good.count++;
4079 				}
4080 			}
4081 
4082 			/* return the good ones back to the pool */
4083 			list_for_each_entry_safe(dsd, nxt,
4084 			    &ha->pool.good.head, list) {
4085 				list_del(&dsd->list);
4086 				dma_pool_free(ha->dif_bundl_pool,
4087 				    dsd->dsd_addr, dsd->dsd_list_dma);
4088 				ha->dif_bundle_dma_allocs--;
4089 				kfree(dsd);
4090 				ha->dif_bundle_kallocs--;
4091 			}
4092 
4093 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
4094 			    "%s: dif dma pool (good=%u unusable=%u)\n",
4095 			    __func__, ha->pool.good.count,
4096 			    ha->pool.unusable.count);
4097 		}
4098 
4099 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
4100 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
4101 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
4102 		    ha->dif_bundl_pool);
4103 	}
4104 
4105 	/* Allocate memory for SNS commands */
4106 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4107 	/* Get consistent memory allocated for SNS commands */
4108 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
4109 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
4110 		if (!ha->sns_cmd)
4111 			goto fail_dma_pool;
4112 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
4113 		    "sns_cmd: %p.\n", ha->sns_cmd);
4114 	} else {
4115 	/* Get consistent memory allocated for MS IOCB */
4116 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4117 			&ha->ms_iocb_dma);
4118 		if (!ha->ms_iocb)
4119 			goto fail_dma_pool;
4120 	/* Get consistent memory allocated for CT SNS commands */
4121 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
4122 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
4123 		if (!ha->ct_sns)
4124 			goto fail_free_ms_iocb;
4125 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
4126 		    "ms_iocb=%p ct_sns=%p.\n",
4127 		    ha->ms_iocb, ha->ct_sns);
4128 	}
4129 
4130 	/* Allocate memory for request ring */
4131 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
4132 	if (!*req) {
4133 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
4134 		    "Failed to allocate memory for req.\n");
4135 		goto fail_req;
4136 	}
4137 	(*req)->length = req_len;
4138 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
4139 		((*req)->length + 1) * sizeof(request_t),
4140 		&(*req)->dma, GFP_KERNEL);
4141 	if (!(*req)->ring) {
4142 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
4143 		    "Failed to allocate memory for req_ring.\n");
4144 		goto fail_req_ring;
4145 	}
4146 	/* Allocate memory for response ring */
4147 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
4148 	if (!*rsp) {
4149 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
4150 		    "Failed to allocate memory for rsp.\n");
4151 		goto fail_rsp;
4152 	}
4153 	(*rsp)->hw = ha;
4154 	(*rsp)->length = rsp_len;
4155 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
4156 		((*rsp)->length + 1) * sizeof(response_t),
4157 		&(*rsp)->dma, GFP_KERNEL);
4158 	if (!(*rsp)->ring) {
4159 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
4160 		    "Failed to allocate memory for rsp_ring.\n");
4161 		goto fail_rsp_ring;
4162 	}
4163 	(*req)->rsp = *rsp;
4164 	(*rsp)->req = *req;
4165 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
4166 	    "req=%p req->length=%d req->ring=%p rsp=%p "
4167 	    "rsp->length=%d rsp->ring=%p.\n",
4168 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
4169 	    (*rsp)->ring);
4170 	/* Allocate memory for NVRAM data for vports */
4171 	if (ha->nvram_npiv_size) {
4172 		ha->npiv_info = kcalloc(ha->nvram_npiv_size,
4173 					sizeof(struct qla_npiv_entry),
4174 					GFP_KERNEL);
4175 		if (!ha->npiv_info) {
4176 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
4177 			    "Failed to allocate memory for npiv_info.\n");
4178 			goto fail_npiv_info;
4179 		}
4180 	} else
4181 		ha->npiv_info = NULL;
4182 
4183 	/* Get consistent memory allocated for EX-INIT-CB. */
4184 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
4185 	    IS_QLA28XX(ha)) {
4186 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4187 		    &ha->ex_init_cb_dma);
4188 		if (!ha->ex_init_cb)
4189 			goto fail_ex_init_cb;
4190 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
4191 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
4192 	}
4193 
4194 	INIT_LIST_HEAD(&ha->gbl_dsd_list);
4195 
4196 	/* Get consistent memory allocated for Async Port-Database. */
4197 	if (!IS_FWI2_CAPABLE(ha)) {
4198 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
4199 			&ha->async_pd_dma);
4200 		if (!ha->async_pd)
4201 			goto fail_async_pd;
4202 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
4203 		    "async_pd=%p.\n", ha->async_pd);
4204 	}
4205 
4206 	INIT_LIST_HEAD(&ha->vp_list);
4207 
4208 	/* Allocate memory for our loop_id bitmap */
4209 	ha->loop_id_map = kcalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE),
4210 				  sizeof(long),
4211 				  GFP_KERNEL);
4212 	if (!ha->loop_id_map)
4213 		goto fail_loop_id_map;
4214 	else {
4215 		qla2x00_set_reserved_loop_ids(ha);
4216 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
4217 		    "loop_id_map=%p.\n", ha->loop_id_map);
4218 	}
4219 
4220 	ha->sfp_data = dma_alloc_coherent(&ha->pdev->dev,
4221 	    SFP_DEV_SIZE, &ha->sfp_data_dma, GFP_KERNEL);
4222 	if (!ha->sfp_data) {
4223 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4224 		    "Unable to allocate memory for SFP read-data.\n");
4225 		goto fail_sfp_data;
4226 	}
4227 
4228 	ha->flt = dma_alloc_coherent(&ha->pdev->dev,
4229 	    sizeof(struct qla_flt_header) + FLT_REGIONS_SIZE, &ha->flt_dma,
4230 	    GFP_KERNEL);
4231 	if (!ha->flt) {
4232 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
4233 		    "Unable to allocate memory for FLT.\n");
4234 		goto fail_flt_buffer;
4235 	}
4236 
4237 	return 0;
4238 
4239 fail_flt_buffer:
4240 	dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4241 	    ha->sfp_data, ha->sfp_data_dma);
4242 fail_sfp_data:
4243 	kfree(ha->loop_id_map);
4244 fail_loop_id_map:
4245 	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4246 fail_async_pd:
4247 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
4248 fail_ex_init_cb:
4249 	kfree(ha->npiv_info);
4250 fail_npiv_info:
4251 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
4252 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
4253 	(*rsp)->ring = NULL;
4254 	(*rsp)->dma = 0;
4255 fail_rsp_ring:
4256 	kfree(*rsp);
4257 	*rsp = NULL;
4258 fail_rsp:
4259 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
4260 		sizeof(request_t), (*req)->ring, (*req)->dma);
4261 	(*req)->ring = NULL;
4262 	(*req)->dma = 0;
4263 fail_req_ring:
4264 	kfree(*req);
4265 	*req = NULL;
4266 fail_req:
4267 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4268 		ha->ct_sns, ha->ct_sns_dma);
4269 	ha->ct_sns = NULL;
4270 	ha->ct_sns_dma = 0;
4271 fail_free_ms_iocb:
4272 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4273 	ha->ms_iocb = NULL;
4274 	ha->ms_iocb_dma = 0;
4275 
4276 	if (ha->sns_cmd)
4277 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4278 		    ha->sns_cmd, ha->sns_cmd_dma);
4279 fail_dma_pool:
4280 	if (ql2xenabledif) {
4281 		struct dsd_dma *dsd, *nxt;
4282 
4283 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4284 		    list) {
4285 			list_del(&dsd->list);
4286 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4287 			    dsd->dsd_list_dma);
4288 			ha->dif_bundle_dma_allocs--;
4289 			kfree(dsd);
4290 			ha->dif_bundle_kallocs--;
4291 			ha->pool.unusable.count--;
4292 		}
4293 		dma_pool_destroy(ha->dif_bundl_pool);
4294 		ha->dif_bundl_pool = NULL;
4295 	}
4296 
4297 fail_dif_bundl_dma_pool:
4298 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4299 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4300 		ha->fcp_cmnd_dma_pool = NULL;
4301 	}
4302 fail_dl_dma_pool:
4303 	if (IS_QLA82XX(ha) || ql2xenabledif) {
4304 		dma_pool_destroy(ha->dl_dma_pool);
4305 		ha->dl_dma_pool = NULL;
4306 	}
4307 fail_s_dma_pool:
4308 	dma_pool_destroy(ha->s_dma_pool);
4309 	ha->s_dma_pool = NULL;
4310 fail_free_nvram:
4311 	kfree(ha->nvram);
4312 	ha->nvram = NULL;
4313 fail_free_ctx_mempool:
4314 	mempool_destroy(ha->ctx_mempool);
4315 	ha->ctx_mempool = NULL;
4316 fail_free_srb_mempool:
4317 	mempool_destroy(ha->srb_mempool);
4318 	ha->srb_mempool = NULL;
4319 fail_free_gid_list:
4320 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4321 	ha->gid_list,
4322 	ha->gid_list_dma);
4323 	ha->gid_list = NULL;
4324 	ha->gid_list_dma = 0;
4325 fail_free_tgt_mem:
4326 	qlt_mem_free(ha);
4327 fail_free_init_cb:
4328 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
4329 	ha->init_cb_dma);
4330 	ha->init_cb = NULL;
4331 	ha->init_cb_dma = 0;
4332 fail:
4333 	ql_log(ql_log_fatal, NULL, 0x0030,
4334 	    "Memory allocation failure.\n");
4335 	return -ENOMEM;
4336 }
4337 
4338 int
4339 qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
4340 {
4341 	int rval;
4342 	uint16_t	size, max_cnt, temp;
4343 	struct qla_hw_data *ha = vha->hw;
4344 
4345 	/* Return if we don't need to alloacate any extended logins */
4346 	if (!ql2xexlogins)
4347 		return QLA_SUCCESS;
4348 
4349 	if (!IS_EXLOGIN_OFFLD_CAPABLE(ha))
4350 		return QLA_SUCCESS;
4351 
4352 	ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
4353 	max_cnt = 0;
4354 	rval = qla_get_exlogin_status(vha, &size, &max_cnt);
4355 	if (rval != QLA_SUCCESS) {
4356 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
4357 		    "Failed to get exlogin status.\n");
4358 		return rval;
4359 	}
4360 
4361 	temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
4362 	temp *= size;
4363 
4364 	if (temp != ha->exlogin_size) {
4365 		qla2x00_free_exlogin_buffer(ha);
4366 		ha->exlogin_size = temp;
4367 
4368 		ql_log(ql_log_info, vha, 0xd024,
4369 		    "EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
4370 		    max_cnt, size, temp);
4371 
4372 		ql_log(ql_log_info, vha, 0xd025,
4373 		    "EXLOGIN: requested size=0x%x\n", ha->exlogin_size);
4374 
4375 		/* Get consistent memory for extended logins */
4376 		ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
4377 			ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
4378 		if (!ha->exlogin_buf) {
4379 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
4380 		    "Failed to allocate memory for exlogin_buf_dma.\n");
4381 			return -ENOMEM;
4382 		}
4383 	}
4384 
4385 	/* Now configure the dma buffer */
4386 	rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
4387 	if (rval) {
4388 		ql_log(ql_log_fatal, vha, 0xd033,
4389 		    "Setup extended login buffer  ****FAILED****.\n");
4390 		qla2x00_free_exlogin_buffer(ha);
4391 	}
4392 
4393 	return rval;
4394 }
4395 
4396 /*
4397 * qla2x00_free_exlogin_buffer
4398 *
4399 * Input:
4400 *	ha = adapter block pointer
4401 */
4402 void
4403 qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
4404 {
4405 	if (ha->exlogin_buf) {
4406 		dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
4407 		    ha->exlogin_buf, ha->exlogin_buf_dma);
4408 		ha->exlogin_buf = NULL;
4409 		ha->exlogin_size = 0;
4410 	}
4411 }
4412 
4413 static void
4414 qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
4415 {
4416 	u32 temp;
4417 	struct init_cb_81xx *icb = (struct init_cb_81xx *)&vha->hw->init_cb;
4418 	*ret_cnt = FW_DEF_EXCHANGES_CNT;
4419 
4420 	if (max_cnt > vha->hw->max_exchg)
4421 		max_cnt = vha->hw->max_exchg;
4422 
4423 	if (qla_ini_mode_enabled(vha)) {
4424 		if (vha->ql2xiniexchg > max_cnt)
4425 			vha->ql2xiniexchg = max_cnt;
4426 
4427 		if (vha->ql2xiniexchg > FW_DEF_EXCHANGES_CNT)
4428 			*ret_cnt = vha->ql2xiniexchg;
4429 
4430 	} else if (qla_tgt_mode_enabled(vha)) {
4431 		if (vha->ql2xexchoffld > max_cnt) {
4432 			vha->ql2xexchoffld = max_cnt;
4433 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4434 		}
4435 
4436 		if (vha->ql2xexchoffld > FW_DEF_EXCHANGES_CNT)
4437 			*ret_cnt = vha->ql2xexchoffld;
4438 	} else if (qla_dual_mode_enabled(vha)) {
4439 		temp = vha->ql2xiniexchg + vha->ql2xexchoffld;
4440 		if (temp > max_cnt) {
4441 			vha->ql2xiniexchg -= (temp - max_cnt)/2;
4442 			vha->ql2xexchoffld -= (((temp - max_cnt)/2) + 1);
4443 			temp = max_cnt;
4444 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4445 		}
4446 
4447 		if (temp > FW_DEF_EXCHANGES_CNT)
4448 			*ret_cnt = temp;
4449 	}
4450 }
4451 
4452 int
4453 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
4454 {
4455 	int rval;
4456 	u16	size, max_cnt;
4457 	u32 actual_cnt, totsz;
4458 	struct qla_hw_data *ha = vha->hw;
4459 
4460 	if (!ha->flags.exchoffld_enabled)
4461 		return QLA_SUCCESS;
4462 
4463 	if (!IS_EXCHG_OFFLD_CAPABLE(ha))
4464 		return QLA_SUCCESS;
4465 
4466 	max_cnt = 0;
4467 	rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
4468 	if (rval != QLA_SUCCESS) {
4469 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
4470 		    "Failed to get exlogin status.\n");
4471 		return rval;
4472 	}
4473 
4474 	qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
4475 	ql_log(ql_log_info, vha, 0xd014,
4476 	    "Actual exchange offload count: %d.\n", actual_cnt);
4477 
4478 	totsz = actual_cnt * size;
4479 
4480 	if (totsz != ha->exchoffld_size) {
4481 		qla2x00_free_exchoffld_buffer(ha);
4482 		if (actual_cnt <= FW_DEF_EXCHANGES_CNT) {
4483 			ha->exchoffld_size = 0;
4484 			ha->flags.exchoffld_enabled = 0;
4485 			return QLA_SUCCESS;
4486 		}
4487 
4488 		ha->exchoffld_size = totsz;
4489 
4490 		ql_log(ql_log_info, vha, 0xd016,
4491 		    "Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
4492 		    max_cnt, actual_cnt, size, totsz);
4493 
4494 		ql_log(ql_log_info, vha, 0xd017,
4495 		    "Exchange Buffers requested size = 0x%x\n",
4496 		    ha->exchoffld_size);
4497 
4498 		/* Get consistent memory for extended logins */
4499 		ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
4500 			ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
4501 		if (!ha->exchoffld_buf) {
4502 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4503 			"Failed to allocate memory for Exchange Offload.\n");
4504 
4505 			if (ha->max_exchg >
4506 			    (FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
4507 				ha->max_exchg -= REDUCE_EXCHANGES_CNT;
4508 			} else if (ha->max_exchg >
4509 			    (FW_DEF_EXCHANGES_CNT + 512)) {
4510 				ha->max_exchg -= 512;
4511 			} else {
4512 				ha->flags.exchoffld_enabled = 0;
4513 				ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4514 				    "Disabling Exchange offload due to lack of memory\n");
4515 			}
4516 			ha->exchoffld_size = 0;
4517 
4518 			return -ENOMEM;
4519 		}
4520 	} else if (!ha->exchoffld_buf || (actual_cnt <= FW_DEF_EXCHANGES_CNT)) {
4521 		/* pathological case */
4522 		qla2x00_free_exchoffld_buffer(ha);
4523 		ha->exchoffld_size = 0;
4524 		ha->flags.exchoffld_enabled = 0;
4525 		ql_log(ql_log_info, vha, 0xd016,
4526 		    "Exchange offload not enable: offld size=%d, actual count=%d entry sz=0x%x, total sz=0x%x.\n",
4527 		    ha->exchoffld_size, actual_cnt, size, totsz);
4528 		return 0;
4529 	}
4530 
4531 	/* Now configure the dma buffer */
4532 	rval = qla_set_exchoffld_mem_cfg(vha);
4533 	if (rval) {
4534 		ql_log(ql_log_fatal, vha, 0xd02e,
4535 		    "Setup exchange offload buffer ****FAILED****.\n");
4536 		qla2x00_free_exchoffld_buffer(ha);
4537 	} else {
4538 		/* re-adjust number of target exchange */
4539 		struct init_cb_81xx *icb = (struct init_cb_81xx *)ha->init_cb;
4540 
4541 		if (qla_ini_mode_enabled(vha))
4542 			icb->exchange_count = 0;
4543 		else
4544 			icb->exchange_count = cpu_to_le16(vha->ql2xexchoffld);
4545 	}
4546 
4547 	return rval;
4548 }
4549 
4550 /*
4551 * qla2x00_free_exchoffld_buffer
4552 *
4553 * Input:
4554 *	ha = adapter block pointer
4555 */
4556 void
4557 qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
4558 {
4559 	if (ha->exchoffld_buf) {
4560 		dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
4561 		    ha->exchoffld_buf, ha->exchoffld_buf_dma);
4562 		ha->exchoffld_buf = NULL;
4563 		ha->exchoffld_size = 0;
4564 	}
4565 }
4566 
4567 /*
4568 * qla2x00_free_fw_dump
4569 *	Frees fw dump stuff.
4570 *
4571 * Input:
4572 *	ha = adapter block pointer
4573 */
4574 static void
4575 qla2x00_free_fw_dump(struct qla_hw_data *ha)
4576 {
4577 	struct fwdt *fwdt = ha->fwdt;
4578 	uint j;
4579 
4580 	if (ha->fce)
4581 		dma_free_coherent(&ha->pdev->dev,
4582 		    FCE_SIZE, ha->fce, ha->fce_dma);
4583 
4584 	if (ha->eft)
4585 		dma_free_coherent(&ha->pdev->dev,
4586 		    EFT_SIZE, ha->eft, ha->eft_dma);
4587 
4588 	if (ha->fw_dump)
4589 		vfree(ha->fw_dump);
4590 
4591 	ha->fce = NULL;
4592 	ha->fce_dma = 0;
4593 	ha->eft = NULL;
4594 	ha->eft_dma = 0;
4595 	ha->fw_dumped = 0;
4596 	ha->fw_dump_cap_flags = 0;
4597 	ha->fw_dump_reading = 0;
4598 	ha->fw_dump = NULL;
4599 	ha->fw_dump_len = 0;
4600 
4601 	for (j = 0; j < 2; j++, fwdt++) {
4602 		if (fwdt->template)
4603 			vfree(fwdt->template);
4604 		fwdt->template = NULL;
4605 		fwdt->length = 0;
4606 	}
4607 }
4608 
4609 /*
4610 * qla2x00_mem_free
4611 *      Frees all adapter allocated memory.
4612 *
4613 * Input:
4614 *      ha = adapter block pointer.
4615 */
4616 static void
4617 qla2x00_mem_free(struct qla_hw_data *ha)
4618 {
4619 	qla2x00_free_fw_dump(ha);
4620 
4621 	if (ha->mctp_dump)
4622 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
4623 		    ha->mctp_dump_dma);
4624 	ha->mctp_dump = NULL;
4625 
4626 	mempool_destroy(ha->srb_mempool);
4627 	ha->srb_mempool = NULL;
4628 
4629 	if (ha->dcbx_tlv)
4630 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
4631 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
4632 	ha->dcbx_tlv = NULL;
4633 
4634 	if (ha->xgmac_data)
4635 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
4636 		    ha->xgmac_data, ha->xgmac_data_dma);
4637 	ha->xgmac_data = NULL;
4638 
4639 	if (ha->sns_cmd)
4640 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4641 		ha->sns_cmd, ha->sns_cmd_dma);
4642 	ha->sns_cmd = NULL;
4643 	ha->sns_cmd_dma = 0;
4644 
4645 	if (ha->ct_sns)
4646 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4647 		ha->ct_sns, ha->ct_sns_dma);
4648 	ha->ct_sns = NULL;
4649 	ha->ct_sns_dma = 0;
4650 
4651 	if (ha->sfp_data)
4652 		dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE, ha->sfp_data,
4653 		    ha->sfp_data_dma);
4654 	ha->sfp_data = NULL;
4655 
4656 	if (ha->flt)
4657 		dma_free_coherent(&ha->pdev->dev, SFP_DEV_SIZE,
4658 		    ha->flt, ha->flt_dma);
4659 	ha->flt = NULL;
4660 	ha->flt_dma = 0;
4661 
4662 	if (ha->ms_iocb)
4663 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4664 	ha->ms_iocb = NULL;
4665 	ha->ms_iocb_dma = 0;
4666 
4667 	if (ha->ex_init_cb)
4668 		dma_pool_free(ha->s_dma_pool,
4669 			ha->ex_init_cb, ha->ex_init_cb_dma);
4670 	ha->ex_init_cb = NULL;
4671 	ha->ex_init_cb_dma = 0;
4672 
4673 	if (ha->async_pd)
4674 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4675 	ha->async_pd = NULL;
4676 	ha->async_pd_dma = 0;
4677 
4678 	dma_pool_destroy(ha->s_dma_pool);
4679 	ha->s_dma_pool = NULL;
4680 
4681 	if (ha->gid_list)
4682 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4683 		ha->gid_list, ha->gid_list_dma);
4684 	ha->gid_list = NULL;
4685 	ha->gid_list_dma = 0;
4686 
4687 	if (IS_QLA82XX(ha)) {
4688 		if (!list_empty(&ha->gbl_dsd_list)) {
4689 			struct dsd_dma *dsd_ptr, *tdsd_ptr;
4690 
4691 			/* clean up allocated prev pool */
4692 			list_for_each_entry_safe(dsd_ptr,
4693 				tdsd_ptr, &ha->gbl_dsd_list, list) {
4694 				dma_pool_free(ha->dl_dma_pool,
4695 				dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
4696 				list_del(&dsd_ptr->list);
4697 				kfree(dsd_ptr);
4698 			}
4699 		}
4700 	}
4701 
4702 	dma_pool_destroy(ha->dl_dma_pool);
4703 	ha->dl_dma_pool = NULL;
4704 
4705 	dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4706 	ha->fcp_cmnd_dma_pool = NULL;
4707 
4708 	mempool_destroy(ha->ctx_mempool);
4709 	ha->ctx_mempool = NULL;
4710 
4711 	if (ql2xenabledif) {
4712 		struct dsd_dma *dsd, *nxt;
4713 
4714 		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
4715 					 list) {
4716 			list_del(&dsd->list);
4717 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4718 				      dsd->dsd_list_dma);
4719 			ha->dif_bundle_dma_allocs--;
4720 			kfree(dsd);
4721 			ha->dif_bundle_kallocs--;
4722 			ha->pool.unusable.count--;
4723 		}
4724 		list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
4725 			list_del(&dsd->list);
4726 			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
4727 				      dsd->dsd_list_dma);
4728 			ha->dif_bundle_dma_allocs--;
4729 			kfree(dsd);
4730 			ha->dif_bundle_kallocs--;
4731 		}
4732 	}
4733 
4734 	if (ha->dif_bundl_pool)
4735 		dma_pool_destroy(ha->dif_bundl_pool);
4736 	ha->dif_bundl_pool = NULL;
4737 
4738 	qlt_mem_free(ha);
4739 
4740 	if (ha->init_cb)
4741 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
4742 			ha->init_cb, ha->init_cb_dma);
4743 	ha->init_cb = NULL;
4744 	ha->init_cb_dma = 0;
4745 
4746 	vfree(ha->optrom_buffer);
4747 	ha->optrom_buffer = NULL;
4748 	kfree(ha->nvram);
4749 	ha->nvram = NULL;
4750 	kfree(ha->npiv_info);
4751 	ha->npiv_info = NULL;
4752 	kfree(ha->swl);
4753 	ha->swl = NULL;
4754 	kfree(ha->loop_id_map);
4755 	ha->loop_id_map = NULL;
4756 }
4757 
4758 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
4759 						struct qla_hw_data *ha)
4760 {
4761 	struct Scsi_Host *host;
4762 	struct scsi_qla_host *vha = NULL;
4763 
4764 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
4765 	if (!host) {
4766 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
4767 		    "Failed to allocate host from the scsi layer, aborting.\n");
4768 		return NULL;
4769 	}
4770 
4771 	/* Clear our data area */
4772 	vha = shost_priv(host);
4773 	memset(vha, 0, sizeof(scsi_qla_host_t));
4774 
4775 	vha->host = host;
4776 	vha->host_no = host->host_no;
4777 	vha->hw = ha;
4778 
4779 	vha->qlini_mode = ql2x_ini_mode;
4780 	vha->ql2xexchoffld = ql2xexchoffld;
4781 	vha->ql2xiniexchg = ql2xiniexchg;
4782 
4783 	INIT_LIST_HEAD(&vha->vp_fcports);
4784 	INIT_LIST_HEAD(&vha->work_list);
4785 	INIT_LIST_HEAD(&vha->list);
4786 	INIT_LIST_HEAD(&vha->qla_cmd_list);
4787 	INIT_LIST_HEAD(&vha->qla_sess_op_cmd_list);
4788 	INIT_LIST_HEAD(&vha->logo_list);
4789 	INIT_LIST_HEAD(&vha->plogi_ack_list);
4790 	INIT_LIST_HEAD(&vha->qp_list);
4791 	INIT_LIST_HEAD(&vha->gnl.fcports);
4792 	INIT_LIST_HEAD(&vha->gpnid_list);
4793 	INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
4794 
4795 	spin_lock_init(&vha->work_lock);
4796 	spin_lock_init(&vha->cmd_list_lock);
4797 	init_waitqueue_head(&vha->fcport_waitQ);
4798 	init_waitqueue_head(&vha->vref_waitq);
4799 
4800 	vha->gnl.size = sizeof(struct get_name_list_extended) *
4801 			(ha->max_loop_id + 1);
4802 	vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
4803 	    vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
4804 	if (!vha->gnl.l) {
4805 		ql_log(ql_log_fatal, vha, 0xd04a,
4806 		    "Alloc failed for name list.\n");
4807 		scsi_remove_host(vha->host);
4808 		return NULL;
4809 	}
4810 
4811 	/* todo: what about ext login? */
4812 	vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
4813 	vha->scan.l = vmalloc(vha->scan.size);
4814 	if (!vha->scan.l) {
4815 		ql_log(ql_log_fatal, vha, 0xd04a,
4816 		    "Alloc failed for scan database.\n");
4817 		dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
4818 		    vha->gnl.l, vha->gnl.ldma);
4819 		scsi_remove_host(vha->host);
4820 		return NULL;
4821 	}
4822 	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
4823 
4824 	sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
4825 	ql_dbg(ql_dbg_init, vha, 0x0041,
4826 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
4827 	    vha->host, vha->hw, vha,
4828 	    dev_name(&(ha->pdev->dev)));
4829 
4830 	return vha;
4831 }
4832 
4833 struct qla_work_evt *
4834 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
4835 {
4836 	struct qla_work_evt *e;
4837 	uint8_t bail;
4838 
4839 	QLA_VHA_MARK_BUSY(vha, bail);
4840 	if (bail)
4841 		return NULL;
4842 
4843 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
4844 	if (!e) {
4845 		QLA_VHA_MARK_NOT_BUSY(vha);
4846 		return NULL;
4847 	}
4848 
4849 	INIT_LIST_HEAD(&e->list);
4850 	e->type = type;
4851 	e->flags = QLA_EVT_FLAG_FREE;
4852 	return e;
4853 }
4854 
4855 int
4856 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
4857 {
4858 	unsigned long flags;
4859 	bool q = false;
4860 
4861 	spin_lock_irqsave(&vha->work_lock, flags);
4862 	list_add_tail(&e->list, &vha->work_list);
4863 
4864 	if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
4865 		q = true;
4866 
4867 	spin_unlock_irqrestore(&vha->work_lock, flags);
4868 
4869 	if (q)
4870 		queue_work(vha->hw->wq, &vha->iocb_work);
4871 
4872 	return QLA_SUCCESS;
4873 }
4874 
4875 int
4876 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
4877     u32 data)
4878 {
4879 	struct qla_work_evt *e;
4880 
4881 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
4882 	if (!e)
4883 		return QLA_FUNCTION_FAILED;
4884 
4885 	e->u.aen.code = code;
4886 	e->u.aen.data = data;
4887 	return qla2x00_post_work(vha, e);
4888 }
4889 
4890 int
4891 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
4892 {
4893 	struct qla_work_evt *e;
4894 
4895 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
4896 	if (!e)
4897 		return QLA_FUNCTION_FAILED;
4898 
4899 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
4900 	return qla2x00_post_work(vha, e);
4901 }
4902 
4903 #define qla2x00_post_async_work(name, type)	\
4904 int qla2x00_post_async_##name##_work(		\
4905     struct scsi_qla_host *vha,			\
4906     fc_port_t *fcport, uint16_t *data)		\
4907 {						\
4908 	struct qla_work_evt *e;			\
4909 						\
4910 	e = qla2x00_alloc_work(vha, type);	\
4911 	if (!e)					\
4912 		return QLA_FUNCTION_FAILED;	\
4913 						\
4914 	e->u.logio.fcport = fcport;		\
4915 	if (data) {				\
4916 		e->u.logio.data[0] = data[0];	\
4917 		e->u.logio.data[1] = data[1];	\
4918 	}					\
4919 	fcport->flags |= FCF_ASYNC_ACTIVE;	\
4920 	return qla2x00_post_work(vha, e);	\
4921 }
4922 
4923 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
4924 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
4925 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
4926 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
4927 qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
4928 qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
4929 
4930 int
4931 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
4932 {
4933 	struct qla_work_evt *e;
4934 
4935 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
4936 	if (!e)
4937 		return QLA_FUNCTION_FAILED;
4938 
4939 	e->u.uevent.code = code;
4940 	return qla2x00_post_work(vha, e);
4941 }
4942 
4943 static void
4944 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
4945 {
4946 	char event_string[40];
4947 	char *envp[] = { event_string, NULL };
4948 
4949 	switch (code) {
4950 	case QLA_UEVENT_CODE_FW_DUMP:
4951 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
4952 		    vha->host_no);
4953 		break;
4954 	default:
4955 		/* do nothing */
4956 		break;
4957 	}
4958 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
4959 }
4960 
4961 int
4962 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
4963 			uint32_t *data, int cnt)
4964 {
4965 	struct qla_work_evt *e;
4966 
4967 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
4968 	if (!e)
4969 		return QLA_FUNCTION_FAILED;
4970 
4971 	e->u.aenfx.evtcode = evtcode;
4972 	e->u.aenfx.count = cnt;
4973 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
4974 	return qla2x00_post_work(vha, e);
4975 }
4976 
4977 void qla24xx_sched_upd_fcport(fc_port_t *fcport)
4978 {
4979 	unsigned long flags;
4980 
4981 	if (IS_SW_RESV_ADDR(fcport->d_id))
4982 		return;
4983 
4984 	spin_lock_irqsave(&fcport->vha->work_lock, flags);
4985 	if (fcport->disc_state == DSC_UPD_FCPORT) {
4986 		spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
4987 		return;
4988 	}
4989 	fcport->jiffies_at_registration = jiffies;
4990 	fcport->sec_since_registration = 0;
4991 	fcport->next_disc_state = DSC_DELETED;
4992 	fcport->disc_state = DSC_UPD_FCPORT;
4993 	spin_unlock_irqrestore(&fcport->vha->work_lock, flags);
4994 
4995 	queue_work(system_unbound_wq, &fcport->reg_work);
4996 }
4997 
4998 static
4999 void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
5000 {
5001 	unsigned long flags;
5002 	fc_port_t *fcport =  NULL, *tfcp;
5003 	struct qlt_plogi_ack_t *pla =
5004 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
5005 	uint8_t free_fcport = 0;
5006 
5007 	ql_dbg(ql_dbg_disc, vha, 0xffff,
5008 	    "%s %d %8phC enter\n",
5009 	    __func__, __LINE__, e->u.new_sess.port_name);
5010 
5011 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5012 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
5013 	if (fcport) {
5014 		fcport->d_id = e->u.new_sess.id;
5015 		if (pla) {
5016 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5017 			memcpy(fcport->node_name,
5018 			    pla->iocb.u.isp24.u.plogi.node_name,
5019 			    WWN_SIZE);
5020 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
5021 			/* we took an extra ref_count to prevent PLOGI ACK when
5022 			 * fcport/sess has not been created.
5023 			 */
5024 			pla->ref_count--;
5025 		}
5026 	} else {
5027 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5028 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5029 		if (fcport) {
5030 			fcport->d_id = e->u.new_sess.id;
5031 			fcport->flags |= FCF_FABRIC_DEVICE;
5032 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
5033 			if (e->u.new_sess.fc4_type == FS_FC4TYPE_FCP)
5034 				fcport->fc4_type = FC4_TYPE_FCP_SCSI;
5035 
5036 			if (e->u.new_sess.fc4_type == FS_FC4TYPE_NVME) {
5037 				fcport->fc4_type = FC4_TYPE_OTHER;
5038 				fcport->fc4f_nvme = FC4_TYPE_NVME;
5039 			}
5040 
5041 			memcpy(fcport->port_name, e->u.new_sess.port_name,
5042 			    WWN_SIZE);
5043 		} else {
5044 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5045 				   "%s %8phC mem alloc fail.\n",
5046 				   __func__, e->u.new_sess.port_name);
5047 
5048 			if (pla)
5049 				kmem_cache_free(qla_tgt_plogi_cachep, pla);
5050 			return;
5051 		}
5052 
5053 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5054 		/* search again to make sure no one else got ahead */
5055 		tfcp = qla2x00_find_fcport_by_wwpn(vha,
5056 		    e->u.new_sess.port_name, 1);
5057 		if (tfcp) {
5058 			/* should rarily happen */
5059 			ql_dbg(ql_dbg_disc, vha, 0xffff,
5060 			    "%s %8phC found existing fcport b4 add. DS %d LS %d\n",
5061 			    __func__, tfcp->port_name, tfcp->disc_state,
5062 			    tfcp->fw_login_state);
5063 
5064 			free_fcport = 1;
5065 		} else {
5066 			list_add_tail(&fcport->list, &vha->vp_fcports);
5067 
5068 		}
5069 		if (pla) {
5070 			qlt_plogi_ack_link(vha, pla, fcport,
5071 			    QLT_PLOGI_LINK_SAME_WWN);
5072 			pla->ref_count--;
5073 		}
5074 	}
5075 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5076 
5077 	if (fcport) {
5078 		fcport->id_changed = 1;
5079 		fcport->scan_state = QLA_FCPORT_FOUND;
5080 		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
5081 
5082 		if (pla) {
5083 			if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
5084 				u16 wd3_lo;
5085 
5086 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5087 				fcport->local = 0;
5088 				fcport->loop_id =
5089 					le16_to_cpu(
5090 					    pla->iocb.u.isp24.nport_handle);
5091 				fcport->fw_login_state = DSC_LS_PRLI_PEND;
5092 				wd3_lo =
5093 				    le16_to_cpu(
5094 					pla->iocb.u.isp24.u.prli.wd3_lo);
5095 
5096 				if (wd3_lo & BIT_7)
5097 					fcport->conf_compl_supported = 1;
5098 
5099 				if ((wd3_lo & BIT_4) == 0)
5100 					fcport->port_type = FCT_INITIATOR;
5101 				else
5102 					fcport->port_type = FCT_TARGET;
5103 			}
5104 			qlt_plogi_ack_unref(vha, pla);
5105 		} else {
5106 			fc_port_t *dfcp = NULL;
5107 
5108 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5109 			tfcp = qla2x00_find_fcport_by_nportid(vha,
5110 			    &e->u.new_sess.id, 1);
5111 			if (tfcp && (tfcp != fcport)) {
5112 				/*
5113 				 * We have a conflict fcport with same NportID.
5114 				 */
5115 				ql_dbg(ql_dbg_disc, vha, 0xffff,
5116 				    "%s %8phC found conflict b4 add. DS %d LS %d\n",
5117 				    __func__, tfcp->port_name, tfcp->disc_state,
5118 				    tfcp->fw_login_state);
5119 
5120 				switch (tfcp->disc_state) {
5121 				case DSC_DELETED:
5122 					break;
5123 				case DSC_DELETE_PEND:
5124 					fcport->login_pause = 1;
5125 					tfcp->conflict = fcport;
5126 					break;
5127 				default:
5128 					fcport->login_pause = 1;
5129 					tfcp->conflict = fcport;
5130 					dfcp = tfcp;
5131 					break;
5132 				}
5133 			}
5134 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5135 			if (dfcp)
5136 				qlt_schedule_sess_for_deletion(tfcp);
5137 
5138 
5139 			if (N2N_TOPO(vha->hw))
5140 				fcport->flags &= ~FCF_FABRIC_DEVICE;
5141 
5142 			if (N2N_TOPO(vha->hw)) {
5143 				if (vha->flags.nvme_enabled) {
5144 					fcport->fc4f_nvme = 1;
5145 					fcport->n2n_flag = 1;
5146 				}
5147 				fcport->fw_login_state = 0;
5148 				/*
5149 				 * wait link init done before sending login
5150 				 */
5151 			} else {
5152 				qla24xx_fcport_handle_login(vha, fcport);
5153 			}
5154 		}
5155 	}
5156 
5157 	if (free_fcport) {
5158 		qla2x00_free_fcport(fcport);
5159 		if (pla)
5160 			kmem_cache_free(qla_tgt_plogi_cachep, pla);
5161 	}
5162 }
5163 
5164 static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
5165 {
5166 	struct srb *sp = e->u.iosb.sp;
5167 	int rval;
5168 
5169 	rval = qla2x00_start_sp(sp);
5170 	if (rval != QLA_SUCCESS) {
5171 		ql_dbg(ql_dbg_disc, vha, 0x2043,
5172 		    "%s: %s: Re-issue IOCB failed (%d).\n",
5173 		    __func__, sp->name, rval);
5174 		qla24xx_sp_unmap(vha, sp);
5175 	}
5176 }
5177 
5178 void
5179 qla2x00_do_work(struct scsi_qla_host *vha)
5180 {
5181 	struct qla_work_evt *e, *tmp;
5182 	unsigned long flags;
5183 	LIST_HEAD(work);
5184 	int rc;
5185 
5186 	spin_lock_irqsave(&vha->work_lock, flags);
5187 	list_splice_init(&vha->work_list, &work);
5188 	spin_unlock_irqrestore(&vha->work_lock, flags);
5189 
5190 	list_for_each_entry_safe(e, tmp, &work, list) {
5191 		rc = QLA_SUCCESS;
5192 		switch (e->type) {
5193 		case QLA_EVT_AEN:
5194 			fc_host_post_event(vha->host, fc_get_event_number(),
5195 			    e->u.aen.code, e->u.aen.data);
5196 			break;
5197 		case QLA_EVT_IDC_ACK:
5198 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
5199 			break;
5200 		case QLA_EVT_ASYNC_LOGIN:
5201 			qla2x00_async_login(vha, e->u.logio.fcport,
5202 			    e->u.logio.data);
5203 			break;
5204 		case QLA_EVT_ASYNC_LOGOUT:
5205 			rc = qla2x00_async_logout(vha, e->u.logio.fcport);
5206 			break;
5207 		case QLA_EVT_ASYNC_LOGOUT_DONE:
5208 			qla2x00_async_logout_done(vha, e->u.logio.fcport,
5209 			    e->u.logio.data);
5210 			break;
5211 		case QLA_EVT_ASYNC_ADISC:
5212 			qla2x00_async_adisc(vha, e->u.logio.fcport,
5213 			    e->u.logio.data);
5214 			break;
5215 		case QLA_EVT_UEVENT:
5216 			qla2x00_uevent_emit(vha, e->u.uevent.code);
5217 			break;
5218 		case QLA_EVT_AENFX:
5219 			qlafx00_process_aen(vha, e);
5220 			break;
5221 		case QLA_EVT_GPNID:
5222 			qla24xx_async_gpnid(vha, &e->u.gpnid.id);
5223 			break;
5224 		case QLA_EVT_UNMAP:
5225 			qla24xx_sp_unmap(vha, e->u.iosb.sp);
5226 			break;
5227 		case QLA_EVT_RELOGIN:
5228 			qla2x00_relogin(vha);
5229 			break;
5230 		case QLA_EVT_NEW_SESS:
5231 			qla24xx_create_new_sess(vha, e);
5232 			break;
5233 		case QLA_EVT_GPDB:
5234 			qla24xx_async_gpdb(vha, e->u.fcport.fcport,
5235 			    e->u.fcport.opt);
5236 			break;
5237 		case QLA_EVT_PRLI:
5238 			qla24xx_async_prli(vha, e->u.fcport.fcport);
5239 			break;
5240 		case QLA_EVT_GPSC:
5241 			qla24xx_async_gpsc(vha, e->u.fcport.fcport);
5242 			break;
5243 		case QLA_EVT_GNL:
5244 			qla24xx_async_gnl(vha, e->u.fcport.fcport);
5245 			break;
5246 		case QLA_EVT_NACK:
5247 			qla24xx_do_nack_work(vha, e);
5248 			break;
5249 		case QLA_EVT_ASYNC_PRLO:
5250 			rc = qla2x00_async_prlo(vha, e->u.logio.fcport);
5251 			break;
5252 		case QLA_EVT_ASYNC_PRLO_DONE:
5253 			qla2x00_async_prlo_done(vha, e->u.logio.fcport,
5254 			    e->u.logio.data);
5255 			break;
5256 		case QLA_EVT_GPNFT:
5257 			qla24xx_async_gpnft(vha, e->u.gpnft.fc4_type,
5258 			    e->u.gpnft.sp);
5259 			break;
5260 		case QLA_EVT_GPNFT_DONE:
5261 			qla24xx_async_gpnft_done(vha, e->u.iosb.sp);
5262 			break;
5263 		case QLA_EVT_GNNFT_DONE:
5264 			qla24xx_async_gnnft_done(vha, e->u.iosb.sp);
5265 			break;
5266 		case QLA_EVT_GNNID:
5267 			qla24xx_async_gnnid(vha, e->u.fcport.fcport);
5268 			break;
5269 		case QLA_EVT_GFPNID:
5270 			qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
5271 			break;
5272 		case QLA_EVT_SP_RETRY:
5273 			qla_sp_retry(vha, e);
5274 			break;
5275 		case QLA_EVT_IIDMA:
5276 			qla_do_iidma_work(vha, e->u.fcport.fcport);
5277 			break;
5278 		case QLA_EVT_ELS_PLOGI:
5279 			qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
5280 			    e->u.fcport.fcport, false);
5281 			break;
5282 		}
5283 
5284 		if (rc == EAGAIN) {
5285 			/* put 'work' at head of 'vha->work_list' */
5286 			spin_lock_irqsave(&vha->work_lock, flags);
5287 			list_splice(&work, &vha->work_list);
5288 			spin_unlock_irqrestore(&vha->work_lock, flags);
5289 			break;
5290 		}
5291 		list_del_init(&e->list);
5292 		if (e->flags & QLA_EVT_FLAG_FREE)
5293 			kfree(e);
5294 
5295 		/* For each work completed decrement vha ref count */
5296 		QLA_VHA_MARK_NOT_BUSY(vha);
5297 	}
5298 }
5299 
5300 int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
5301 {
5302 	struct qla_work_evt *e;
5303 
5304 	e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
5305 
5306 	if (!e) {
5307 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5308 		return QLA_FUNCTION_FAILED;
5309 	}
5310 
5311 	return qla2x00_post_work(vha, e);
5312 }
5313 
5314 /* Relogins all the fcports of a vport
5315  * Context: dpc thread
5316  */
5317 void qla2x00_relogin(struct scsi_qla_host *vha)
5318 {
5319 	fc_port_t       *fcport;
5320 	int status, relogin_needed = 0;
5321 	struct event_arg ea;
5322 
5323 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5324 		/*
5325 		 * If the port is not ONLINE then try to login
5326 		 * to it if we haven't run out of retries.
5327 		 */
5328 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
5329 		    fcport->login_retry) {
5330 			if (fcport->scan_state != QLA_FCPORT_FOUND ||
5331 			    fcport->disc_state == DSC_LOGIN_COMPLETE)
5332 				continue;
5333 
5334 			if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
5335 				fcport->disc_state == DSC_DELETE_PEND) {
5336 				relogin_needed = 1;
5337 			} else {
5338 				if (vha->hw->current_topology != ISP_CFG_NL) {
5339 					memset(&ea, 0, sizeof(ea));
5340 					ea.event = FCME_RELOGIN;
5341 					ea.fcport = fcport;
5342 					qla2x00_fcport_event_handler(vha, &ea);
5343 				} else if (vha->hw->current_topology ==
5344 				    ISP_CFG_NL) {
5345 					fcport->login_retry--;
5346 					status =
5347 					    qla2x00_local_device_login(vha,
5348 						fcport);
5349 					if (status == QLA_SUCCESS) {
5350 						fcport->old_loop_id =
5351 						    fcport->loop_id;
5352 						ql_dbg(ql_dbg_disc, vha, 0x2003,
5353 						    "Port login OK: logged in ID 0x%x.\n",
5354 						    fcport->loop_id);
5355 						qla2x00_update_fcport
5356 							(vha, fcport);
5357 					} else if (status == 1) {
5358 						set_bit(RELOGIN_NEEDED,
5359 						    &vha->dpc_flags);
5360 						/* retry the login again */
5361 						ql_dbg(ql_dbg_disc, vha, 0x2007,
5362 						    "Retrying %d login again loop_id 0x%x.\n",
5363 						    fcport->login_retry,
5364 						    fcport->loop_id);
5365 					} else {
5366 						fcport->login_retry = 0;
5367 					}
5368 
5369 					if (fcport->login_retry == 0 &&
5370 					    status != QLA_SUCCESS)
5371 						qla2x00_clear_loop_id(fcport);
5372 				}
5373 			}
5374 		}
5375 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5376 			break;
5377 	}
5378 
5379 	if (relogin_needed)
5380 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5381 
5382 	ql_dbg(ql_dbg_disc, vha, 0x400e,
5383 	    "Relogin end.\n");
5384 }
5385 
5386 /* Schedule work on any of the dpc-workqueues */
5387 void
5388 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
5389 {
5390 	struct qla_hw_data *ha = base_vha->hw;
5391 
5392 	switch (work_code) {
5393 	case MBA_IDC_AEN: /* 0x8200 */
5394 		if (ha->dpc_lp_wq)
5395 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
5396 		break;
5397 
5398 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
5399 		if (!ha->flags.nic_core_reset_hdlr_active) {
5400 			if (ha->dpc_hp_wq)
5401 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
5402 		} else
5403 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
5404 			    "NIC Core reset is already active. Skip "
5405 			    "scheduling it again.\n");
5406 		break;
5407 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
5408 		if (ha->dpc_hp_wq)
5409 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
5410 		break;
5411 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
5412 		if (ha->dpc_hp_wq)
5413 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
5414 		break;
5415 	default:
5416 		ql_log(ql_log_warn, base_vha, 0xb05f,
5417 		    "Unknown work-code=0x%x.\n", work_code);
5418 	}
5419 
5420 	return;
5421 }
5422 
5423 /* Work: Perform NIC Core Unrecoverable state handling */
5424 void
5425 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
5426 {
5427 	struct qla_hw_data *ha =
5428 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
5429 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5430 	uint32_t dev_state = 0;
5431 
5432 	qla83xx_idc_lock(base_vha, 0);
5433 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5434 	qla83xx_reset_ownership(base_vha);
5435 	if (ha->flags.nic_core_reset_owner) {
5436 		ha->flags.nic_core_reset_owner = 0;
5437 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5438 		    QLA8XXX_DEV_FAILED);
5439 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
5440 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5441 	}
5442 	qla83xx_idc_unlock(base_vha, 0);
5443 }
5444 
5445 /* Work: Execute IDC state handler */
5446 void
5447 qla83xx_idc_state_handler_work(struct work_struct *work)
5448 {
5449 	struct qla_hw_data *ha =
5450 		container_of(work, struct qla_hw_data, idc_state_handler);
5451 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5452 	uint32_t dev_state = 0;
5453 
5454 	qla83xx_idc_lock(base_vha, 0);
5455 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5456 	if (dev_state == QLA8XXX_DEV_FAILED ||
5457 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
5458 		qla83xx_idc_state_handler(base_vha);
5459 	qla83xx_idc_unlock(base_vha, 0);
5460 }
5461 
5462 static int
5463 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
5464 {
5465 	int rval = QLA_SUCCESS;
5466 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
5467 	uint32_t heart_beat_counter1, heart_beat_counter2;
5468 
5469 	do {
5470 		if (time_after(jiffies, heart_beat_wait)) {
5471 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
5472 			    "Nic Core f/w is not alive.\n");
5473 			rval = QLA_FUNCTION_FAILED;
5474 			break;
5475 		}
5476 
5477 		qla83xx_idc_lock(base_vha, 0);
5478 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5479 		    &heart_beat_counter1);
5480 		qla83xx_idc_unlock(base_vha, 0);
5481 		msleep(100);
5482 		qla83xx_idc_lock(base_vha, 0);
5483 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
5484 		    &heart_beat_counter2);
5485 		qla83xx_idc_unlock(base_vha, 0);
5486 	} while (heart_beat_counter1 == heart_beat_counter2);
5487 
5488 	return rval;
5489 }
5490 
5491 /* Work: Perform NIC Core Reset handling */
5492 void
5493 qla83xx_nic_core_reset_work(struct work_struct *work)
5494 {
5495 	struct qla_hw_data *ha =
5496 		container_of(work, struct qla_hw_data, nic_core_reset);
5497 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5498 	uint32_t dev_state = 0;
5499 
5500 	if (IS_QLA2031(ha)) {
5501 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
5502 			ql_log(ql_log_warn, base_vha, 0xb081,
5503 			    "Failed to dump mctp\n");
5504 		return;
5505 	}
5506 
5507 	if (!ha->flags.nic_core_reset_hdlr_active) {
5508 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
5509 			qla83xx_idc_lock(base_vha, 0);
5510 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5511 			    &dev_state);
5512 			qla83xx_idc_unlock(base_vha, 0);
5513 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
5514 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
5515 				    "Nic Core f/w is alive.\n");
5516 				return;
5517 			}
5518 		}
5519 
5520 		ha->flags.nic_core_reset_hdlr_active = 1;
5521 		if (qla83xx_nic_core_reset(base_vha)) {
5522 			/* NIC Core reset failed. */
5523 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
5524 			    "NIC Core reset failed.\n");
5525 		}
5526 		ha->flags.nic_core_reset_hdlr_active = 0;
5527 	}
5528 }
5529 
5530 /* Work: Handle 8200 IDC aens */
5531 void
5532 qla83xx_service_idc_aen(struct work_struct *work)
5533 {
5534 	struct qla_hw_data *ha =
5535 		container_of(work, struct qla_hw_data, idc_aen);
5536 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5537 	uint32_t dev_state, idc_control;
5538 
5539 	qla83xx_idc_lock(base_vha, 0);
5540 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5541 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
5542 	qla83xx_idc_unlock(base_vha, 0);
5543 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
5544 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
5545 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
5546 			    "Application requested NIC Core Reset.\n");
5547 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5548 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
5549 		    QLA_SUCCESS) {
5550 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
5551 			    "Other protocol driver requested NIC Core Reset.\n");
5552 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
5553 		}
5554 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
5555 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
5556 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
5557 	}
5558 }
5559 
5560 static void
5561 qla83xx_wait_logic(void)
5562 {
5563 	int i;
5564 
5565 	/* Yield CPU */
5566 	if (!in_interrupt()) {
5567 		/*
5568 		 * Wait about 200ms before retrying again.
5569 		 * This controls the number of retries for single
5570 		 * lock operation.
5571 		 */
5572 		msleep(100);
5573 		schedule();
5574 	} else {
5575 		for (i = 0; i < 20; i++)
5576 			cpu_relax(); /* This a nop instr on i386 */
5577 	}
5578 }
5579 
5580 static int
5581 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
5582 {
5583 	int rval;
5584 	uint32_t data;
5585 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
5586 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
5587 	struct qla_hw_data *ha = base_vha->hw;
5588 
5589 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
5590 	    "Trying force recovery of the IDC lock.\n");
5591 
5592 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
5593 	if (rval)
5594 		return rval;
5595 
5596 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
5597 		return QLA_SUCCESS;
5598 	} else {
5599 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
5600 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5601 		    data);
5602 		if (rval)
5603 			return rval;
5604 
5605 		msleep(200);
5606 
5607 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
5608 		    &data);
5609 		if (rval)
5610 			return rval;
5611 
5612 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
5613 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
5614 					~(idc_lck_rcvry_stage_mask));
5615 			rval = qla83xx_wr_reg(base_vha,
5616 			    QLA83XX_IDC_LOCK_RECOVERY, data);
5617 			if (rval)
5618 				return rval;
5619 
5620 			/* Forcefully perform IDC UnLock */
5621 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
5622 			    &data);
5623 			if (rval)
5624 				return rval;
5625 			/* Clear lock-id by setting 0xff */
5626 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5627 			    0xff);
5628 			if (rval)
5629 				return rval;
5630 			/* Clear lock-recovery by setting 0x0 */
5631 			rval = qla83xx_wr_reg(base_vha,
5632 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
5633 			if (rval)
5634 				return rval;
5635 		} else
5636 			return QLA_SUCCESS;
5637 	}
5638 
5639 	return rval;
5640 }
5641 
5642 static int
5643 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
5644 {
5645 	int rval = QLA_SUCCESS;
5646 	uint32_t o_drv_lockid, n_drv_lockid;
5647 	unsigned long lock_recovery_timeout;
5648 
5649 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
5650 retry_lockid:
5651 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
5652 	if (rval)
5653 		goto exit;
5654 
5655 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
5656 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
5657 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
5658 			return QLA_SUCCESS;
5659 		else
5660 			return QLA_FUNCTION_FAILED;
5661 	}
5662 
5663 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
5664 	if (rval)
5665 		goto exit;
5666 
5667 	if (o_drv_lockid == n_drv_lockid) {
5668 		qla83xx_wait_logic();
5669 		goto retry_lockid;
5670 	} else
5671 		return QLA_SUCCESS;
5672 
5673 exit:
5674 	return rval;
5675 }
5676 
5677 void
5678 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
5679 {
5680 	uint16_t options = (requester_id << 15) | BIT_6;
5681 	uint32_t data;
5682 	uint32_t lock_owner;
5683 	struct qla_hw_data *ha = base_vha->hw;
5684 
5685 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
5686 retry_lock:
5687 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
5688 	    == QLA_SUCCESS) {
5689 		if (data) {
5690 			/* Setting lock-id to our function-number */
5691 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5692 			    ha->portnum);
5693 		} else {
5694 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
5695 			    &lock_owner);
5696 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
5697 			    "Failed to acquire IDC lock, acquired by %d, "
5698 			    "retrying...\n", lock_owner);
5699 
5700 			/* Retry/Perform IDC-Lock recovery */
5701 			if (qla83xx_idc_lock_recovery(base_vha)
5702 			    == QLA_SUCCESS) {
5703 				qla83xx_wait_logic();
5704 				goto retry_lock;
5705 			} else
5706 				ql_log(ql_log_warn, base_vha, 0xb075,
5707 				    "IDC Lock recovery FAILED.\n");
5708 		}
5709 
5710 	}
5711 
5712 	return;
5713 
5714 	/* XXX: IDC-lock implementation using access-control mbx */
5715 retry_lock2:
5716 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
5717 		ql_dbg(ql_dbg_p3p, base_vha, 0xb072,
5718 		    "Failed to acquire IDC lock. retrying...\n");
5719 		/* Retry/Perform IDC-Lock recovery */
5720 		if (qla83xx_idc_lock_recovery(base_vha) == QLA_SUCCESS) {
5721 			qla83xx_wait_logic();
5722 			goto retry_lock2;
5723 		} else
5724 			ql_log(ql_log_warn, base_vha, 0xb076,
5725 			    "IDC Lock recovery FAILED.\n");
5726 	}
5727 
5728 	return;
5729 }
5730 
5731 void
5732 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
5733 {
5734 #if 0
5735 	uint16_t options = (requester_id << 15) | BIT_7;
5736 #endif
5737 	uint16_t retry;
5738 	uint32_t data;
5739 	struct qla_hw_data *ha = base_vha->hw;
5740 
5741 	/* IDC-unlock implementation using driver-unlock/lock-id
5742 	 * remote registers
5743 	 */
5744 	retry = 0;
5745 retry_unlock:
5746 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
5747 	    == QLA_SUCCESS) {
5748 		if (data == ha->portnum) {
5749 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
5750 			/* Clearing lock-id by setting 0xff */
5751 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
5752 		} else if (retry < 10) {
5753 			/* SV: XXX: IDC unlock retrying needed here? */
5754 
5755 			/* Retry for IDC-unlock */
5756 			qla83xx_wait_logic();
5757 			retry++;
5758 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
5759 			    "Failed to release IDC lock, retrying=%d\n", retry);
5760 			goto retry_unlock;
5761 		}
5762 	} else if (retry < 10) {
5763 		/* Retry for IDC-unlock */
5764 		qla83xx_wait_logic();
5765 		retry++;
5766 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
5767 		    "Failed to read drv-lockid, retrying=%d\n", retry);
5768 		goto retry_unlock;
5769 	}
5770 
5771 	return;
5772 
5773 #if 0
5774 	/* XXX: IDC-unlock implementation using access-control mbx */
5775 	retry = 0;
5776 retry_unlock2:
5777 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
5778 		if (retry < 10) {
5779 			/* Retry for IDC-unlock */
5780 			qla83xx_wait_logic();
5781 			retry++;
5782 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
5783 			    "Failed to release IDC lock, retrying=%d\n", retry);
5784 			goto retry_unlock2;
5785 		}
5786 	}
5787 
5788 	return;
5789 #endif
5790 }
5791 
5792 int
5793 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
5794 {
5795 	int rval = QLA_SUCCESS;
5796 	struct qla_hw_data *ha = vha->hw;
5797 	uint32_t drv_presence;
5798 
5799 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5800 	if (rval == QLA_SUCCESS) {
5801 		drv_presence |= (1 << ha->portnum);
5802 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
5803 		    drv_presence);
5804 	}
5805 
5806 	return rval;
5807 }
5808 
5809 int
5810 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
5811 {
5812 	int rval = QLA_SUCCESS;
5813 
5814 	qla83xx_idc_lock(vha, 0);
5815 	rval = __qla83xx_set_drv_presence(vha);
5816 	qla83xx_idc_unlock(vha, 0);
5817 
5818 	return rval;
5819 }
5820 
5821 int
5822 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
5823 {
5824 	int rval = QLA_SUCCESS;
5825 	struct qla_hw_data *ha = vha->hw;
5826 	uint32_t drv_presence;
5827 
5828 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5829 	if (rval == QLA_SUCCESS) {
5830 		drv_presence &= ~(1 << ha->portnum);
5831 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
5832 		    drv_presence);
5833 	}
5834 
5835 	return rval;
5836 }
5837 
5838 int
5839 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
5840 {
5841 	int rval = QLA_SUCCESS;
5842 
5843 	qla83xx_idc_lock(vha, 0);
5844 	rval = __qla83xx_clear_drv_presence(vha);
5845 	qla83xx_idc_unlock(vha, 0);
5846 
5847 	return rval;
5848 }
5849 
5850 static void
5851 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
5852 {
5853 	struct qla_hw_data *ha = vha->hw;
5854 	uint32_t drv_ack, drv_presence;
5855 	unsigned long ack_timeout;
5856 
5857 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
5858 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
5859 	while (1) {
5860 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
5861 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5862 		if ((drv_ack & drv_presence) == drv_presence)
5863 			break;
5864 
5865 		if (time_after_eq(jiffies, ack_timeout)) {
5866 			ql_log(ql_log_warn, vha, 0xb067,
5867 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
5868 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
5869 			/*
5870 			 * The function(s) which did not ack in time are forced
5871 			 * to withdraw any further participation in the IDC
5872 			 * reset.
5873 			 */
5874 			if (drv_ack != drv_presence)
5875 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
5876 				    drv_ack);
5877 			break;
5878 		}
5879 
5880 		qla83xx_idc_unlock(vha, 0);
5881 		msleep(1000);
5882 		qla83xx_idc_lock(vha, 0);
5883 	}
5884 
5885 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
5886 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
5887 }
5888 
5889 static int
5890 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
5891 {
5892 	int rval = QLA_SUCCESS;
5893 	uint32_t idc_control;
5894 
5895 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
5896 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
5897 
5898 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
5899 	__qla83xx_get_idc_control(vha, &idc_control);
5900 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
5901 	__qla83xx_set_idc_control(vha, 0);
5902 
5903 	qla83xx_idc_unlock(vha, 0);
5904 	rval = qla83xx_restart_nic_firmware(vha);
5905 	qla83xx_idc_lock(vha, 0);
5906 
5907 	if (rval != QLA_SUCCESS) {
5908 		ql_log(ql_log_fatal, vha, 0xb06a,
5909 		    "Failed to restart NIC f/w.\n");
5910 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
5911 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
5912 	} else {
5913 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
5914 		    "Success in restarting nic f/w.\n");
5915 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
5916 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
5917 	}
5918 
5919 	return rval;
5920 }
5921 
5922 /* Assumes idc_lock always held on entry */
5923 int
5924 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
5925 {
5926 	struct qla_hw_data *ha = base_vha->hw;
5927 	int rval = QLA_SUCCESS;
5928 	unsigned long dev_init_timeout;
5929 	uint32_t dev_state;
5930 
5931 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
5932 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
5933 
5934 	while (1) {
5935 
5936 		if (time_after_eq(jiffies, dev_init_timeout)) {
5937 			ql_log(ql_log_warn, base_vha, 0xb06e,
5938 			    "Initialization TIMEOUT!\n");
5939 			/* Init timeout. Disable further NIC Core
5940 			 * communication.
5941 			 */
5942 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5943 				QLA8XXX_DEV_FAILED);
5944 			ql_log(ql_log_info, base_vha, 0xb06f,
5945 			    "HW State: FAILED.\n");
5946 		}
5947 
5948 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5949 		switch (dev_state) {
5950 		case QLA8XXX_DEV_READY:
5951 			if (ha->flags.nic_core_reset_owner)
5952 				qla83xx_idc_audit(base_vha,
5953 				    IDC_AUDIT_COMPLETION);
5954 			ha->flags.nic_core_reset_owner = 0;
5955 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
5956 			    "Reset_owner reset by 0x%x.\n",
5957 			    ha->portnum);
5958 			goto exit;
5959 		case QLA8XXX_DEV_COLD:
5960 			if (ha->flags.nic_core_reset_owner)
5961 				rval = qla83xx_device_bootstrap(base_vha);
5962 			else {
5963 			/* Wait for AEN to change device-state */
5964 				qla83xx_idc_unlock(base_vha, 0);
5965 				msleep(1000);
5966 				qla83xx_idc_lock(base_vha, 0);
5967 			}
5968 			break;
5969 		case QLA8XXX_DEV_INITIALIZING:
5970 			/* Wait for AEN to change device-state */
5971 			qla83xx_idc_unlock(base_vha, 0);
5972 			msleep(1000);
5973 			qla83xx_idc_lock(base_vha, 0);
5974 			break;
5975 		case QLA8XXX_DEV_NEED_RESET:
5976 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
5977 				qla83xx_need_reset_handler(base_vha);
5978 			else {
5979 				/* Wait for AEN to change device-state */
5980 				qla83xx_idc_unlock(base_vha, 0);
5981 				msleep(1000);
5982 				qla83xx_idc_lock(base_vha, 0);
5983 			}
5984 			/* reset timeout value after need reset handler */
5985 			dev_init_timeout = jiffies +
5986 			    (ha->fcoe_dev_init_timeout * HZ);
5987 			break;
5988 		case QLA8XXX_DEV_NEED_QUIESCENT:
5989 			/* XXX: DEBUG for now */
5990 			qla83xx_idc_unlock(base_vha, 0);
5991 			msleep(1000);
5992 			qla83xx_idc_lock(base_vha, 0);
5993 			break;
5994 		case QLA8XXX_DEV_QUIESCENT:
5995 			/* XXX: DEBUG for now */
5996 			if (ha->flags.quiesce_owner)
5997 				goto exit;
5998 
5999 			qla83xx_idc_unlock(base_vha, 0);
6000 			msleep(1000);
6001 			qla83xx_idc_lock(base_vha, 0);
6002 			dev_init_timeout = jiffies +
6003 			    (ha->fcoe_dev_init_timeout * HZ);
6004 			break;
6005 		case QLA8XXX_DEV_FAILED:
6006 			if (ha->flags.nic_core_reset_owner)
6007 				qla83xx_idc_audit(base_vha,
6008 				    IDC_AUDIT_COMPLETION);
6009 			ha->flags.nic_core_reset_owner = 0;
6010 			__qla83xx_clear_drv_presence(base_vha);
6011 			qla83xx_idc_unlock(base_vha, 0);
6012 			qla8xxx_dev_failed_handler(base_vha);
6013 			rval = QLA_FUNCTION_FAILED;
6014 			qla83xx_idc_lock(base_vha, 0);
6015 			goto exit;
6016 		case QLA8XXX_BAD_VALUE:
6017 			qla83xx_idc_unlock(base_vha, 0);
6018 			msleep(1000);
6019 			qla83xx_idc_lock(base_vha, 0);
6020 			break;
6021 		default:
6022 			ql_log(ql_log_warn, base_vha, 0xb071,
6023 			    "Unknown Device State: %x.\n", dev_state);
6024 			qla83xx_idc_unlock(base_vha, 0);
6025 			qla8xxx_dev_failed_handler(base_vha);
6026 			rval = QLA_FUNCTION_FAILED;
6027 			qla83xx_idc_lock(base_vha, 0);
6028 			goto exit;
6029 		}
6030 	}
6031 
6032 exit:
6033 	return rval;
6034 }
6035 
6036 void
6037 qla2x00_disable_board_on_pci_error(struct work_struct *work)
6038 {
6039 	struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
6040 	    board_disable);
6041 	struct pci_dev *pdev = ha->pdev;
6042 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6043 
6044 	/*
6045 	 * if UNLOAD flag is already set, then continue unload,
6046 	 * where it was set first.
6047 	 */
6048 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
6049 		return;
6050 
6051 	ql_log(ql_log_warn, base_vha, 0x015b,
6052 	    "Disabling adapter.\n");
6053 
6054 	if (!atomic_read(&pdev->enable_cnt)) {
6055 		ql_log(ql_log_info, base_vha, 0xfffc,
6056 		    "PCI device disabled, no action req for PCI error=%lx\n",
6057 		    base_vha->pci_flags);
6058 		return;
6059 	}
6060 
6061 	qla2x00_wait_for_sess_deletion(base_vha);
6062 
6063 	set_bit(UNLOADING, &base_vha->dpc_flags);
6064 
6065 	qla2x00_delete_all_vps(ha, base_vha);
6066 
6067 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
6068 
6069 	qla2x00_dfs_remove(base_vha);
6070 
6071 	qla84xx_put_chip(base_vha);
6072 
6073 	if (base_vha->timer_active)
6074 		qla2x00_stop_timer(base_vha);
6075 
6076 	base_vha->flags.online = 0;
6077 
6078 	qla2x00_destroy_deferred_work(ha);
6079 
6080 	/*
6081 	 * Do not try to stop beacon blink as it will issue a mailbox
6082 	 * command.
6083 	 */
6084 	qla2x00_free_sysfs_attr(base_vha, false);
6085 
6086 	fc_remove_host(base_vha->host);
6087 
6088 	scsi_remove_host(base_vha->host);
6089 
6090 	base_vha->flags.init_done = 0;
6091 	qla25xx_delete_queues(base_vha);
6092 	qla2x00_free_fcports(base_vha);
6093 	qla2x00_free_irqs(base_vha);
6094 	qla2x00_mem_free(ha);
6095 	qla82xx_md_free(base_vha);
6096 	qla2x00_free_queues(ha);
6097 
6098 	qla2x00_unmap_iobases(ha);
6099 
6100 	pci_release_selected_regions(ha->pdev, ha->bars);
6101 	pci_disable_pcie_error_reporting(pdev);
6102 	pci_disable_device(pdev);
6103 
6104 	/*
6105 	 * Let qla2x00_remove_one cleanup qla_hw_data on device removal.
6106 	 */
6107 }
6108 
6109 /**************************************************************************
6110 * qla2x00_do_dpc
6111 *   This kernel thread is a task that is schedule by the interrupt handler
6112 *   to perform the background processing for interrupts.
6113 *
6114 * Notes:
6115 * This task always run in the context of a kernel thread.  It
6116 * is kick-off by the driver's detect code and starts up
6117 * up one per adapter. It immediately goes to sleep and waits for
6118 * some fibre event.  When either the interrupt handler or
6119 * the timer routine detects a event it will one of the task
6120 * bits then wake us up.
6121 **************************************************************************/
6122 static int
6123 qla2x00_do_dpc(void *data)
6124 {
6125 	scsi_qla_host_t *base_vha;
6126 	struct qla_hw_data *ha;
6127 	uint32_t online;
6128 	struct qla_qpair *qpair;
6129 
6130 	ha = (struct qla_hw_data *)data;
6131 	base_vha = pci_get_drvdata(ha->pdev);
6132 
6133 	set_user_nice(current, MIN_NICE);
6134 
6135 	set_current_state(TASK_INTERRUPTIBLE);
6136 	while (!kthread_should_stop()) {
6137 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
6138 		    "DPC handler sleeping.\n");
6139 
6140 		schedule();
6141 
6142 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
6143 			goto end_loop;
6144 
6145 		if (ha->flags.eeh_busy) {
6146 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
6147 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
6148 			goto end_loop;
6149 		}
6150 
6151 		ha->dpc_active = 1;
6152 
6153 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
6154 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
6155 		    base_vha->dpc_flags);
6156 
6157 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
6158 			break;
6159 
6160 		if (IS_P3P_TYPE(ha)) {
6161 			if (IS_QLA8044(ha)) {
6162 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6163 					&base_vha->dpc_flags)) {
6164 					qla8044_idc_lock(ha);
6165 					qla8044_wr_direct(base_vha,
6166 						QLA8044_CRB_DEV_STATE_INDEX,
6167 						QLA8XXX_DEV_FAILED);
6168 					qla8044_idc_unlock(ha);
6169 					ql_log(ql_log_info, base_vha, 0x4004,
6170 						"HW State: FAILED.\n");
6171 					qla8044_device_state_handler(base_vha);
6172 					continue;
6173 				}
6174 
6175 			} else {
6176 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
6177 					&base_vha->dpc_flags)) {
6178 					qla82xx_idc_lock(ha);
6179 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6180 						QLA8XXX_DEV_FAILED);
6181 					qla82xx_idc_unlock(ha);
6182 					ql_log(ql_log_info, base_vha, 0x0151,
6183 						"HW State: FAILED.\n");
6184 					qla82xx_device_state_handler(base_vha);
6185 					continue;
6186 				}
6187 			}
6188 
6189 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
6190 				&base_vha->dpc_flags)) {
6191 
6192 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
6193 				    "FCoE context reset scheduled.\n");
6194 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
6195 					&base_vha->dpc_flags))) {
6196 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
6197 						/* FCoE-ctx reset failed.
6198 						 * Escalate to chip-reset
6199 						 */
6200 						set_bit(ISP_ABORT_NEEDED,
6201 							&base_vha->dpc_flags);
6202 					}
6203 					clear_bit(ABORT_ISP_ACTIVE,
6204 						&base_vha->dpc_flags);
6205 				}
6206 
6207 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
6208 				    "FCoE context reset end.\n");
6209 			}
6210 		} else if (IS_QLAFX00(ha)) {
6211 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
6212 				&base_vha->dpc_flags)) {
6213 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
6214 				    "Firmware Reset Recovery\n");
6215 				if (qlafx00_reset_initialize(base_vha)) {
6216 					/* Failed. Abort isp later. */
6217 					if (!test_bit(UNLOADING,
6218 					    &base_vha->dpc_flags)) {
6219 						set_bit(ISP_UNRECOVERABLE,
6220 						    &base_vha->dpc_flags);
6221 						ql_dbg(ql_dbg_dpc, base_vha,
6222 						    0x4021,
6223 						    "Reset Recovery Failed\n");
6224 					}
6225 				}
6226 			}
6227 
6228 			if (test_and_clear_bit(FX00_TARGET_SCAN,
6229 				&base_vha->dpc_flags)) {
6230 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
6231 				    "ISPFx00 Target Scan scheduled\n");
6232 				if (qlafx00_rescan_isp(base_vha)) {
6233 					if (!test_bit(UNLOADING,
6234 					    &base_vha->dpc_flags))
6235 						set_bit(ISP_UNRECOVERABLE,
6236 						    &base_vha->dpc_flags);
6237 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
6238 					    "ISPFx00 Target Scan Failed\n");
6239 				}
6240 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
6241 				    "ISPFx00 Target Scan End\n");
6242 			}
6243 			if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
6244 				&base_vha->dpc_flags)) {
6245 				ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
6246 				    "ISPFx00 Host Info resend scheduled\n");
6247 				qlafx00_fx_disc(base_vha,
6248 				    &base_vha->hw->mr.fcport,
6249 				    FXDISC_REG_HOST_INFO);
6250 			}
6251 		}
6252 
6253 		if (test_and_clear_bit(DETECT_SFP_CHANGE,
6254 			&base_vha->dpc_flags) &&
6255 		    !test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) {
6256 			qla24xx_detect_sfp(base_vha);
6257 
6258 			if (ha->flags.detected_lr_sfp !=
6259 			    ha->flags.using_lr_setting)
6260 				set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
6261 		}
6262 
6263 		if (test_and_clear_bit
6264 		    (ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
6265 		    !test_bit(UNLOADING, &base_vha->dpc_flags)) {
6266 			bool do_reset = true;
6267 
6268 			switch (base_vha->qlini_mode) {
6269 			case QLA2XXX_INI_MODE_ENABLED:
6270 				break;
6271 			case QLA2XXX_INI_MODE_DISABLED:
6272 				if (!qla_tgt_mode_enabled(base_vha) &&
6273 				    !ha->flags.fw_started)
6274 					do_reset = false;
6275 				break;
6276 			case QLA2XXX_INI_MODE_DUAL:
6277 				if (!qla_dual_mode_enabled(base_vha) &&
6278 				    !ha->flags.fw_started)
6279 					do_reset = false;
6280 				break;
6281 			default:
6282 				break;
6283 			}
6284 
6285 			if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
6286 			    &base_vha->dpc_flags))) {
6287 				ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
6288 				    "ISP abort scheduled.\n");
6289 				if (ha->isp_ops->abort_isp(base_vha)) {
6290 					/* failed. retry later */
6291 					set_bit(ISP_ABORT_NEEDED,
6292 					    &base_vha->dpc_flags);
6293 				}
6294 				clear_bit(ABORT_ISP_ACTIVE,
6295 						&base_vha->dpc_flags);
6296 				ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
6297 				    "ISP abort end.\n");
6298 			}
6299 		}
6300 
6301 		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
6302 		    &base_vha->dpc_flags)) {
6303 			qla2x00_update_fcports(base_vha);
6304 		}
6305 
6306 		if (IS_QLAFX00(ha))
6307 			goto loop_resync_check;
6308 
6309 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
6310 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
6311 			    "Quiescence mode scheduled.\n");
6312 			if (IS_P3P_TYPE(ha)) {
6313 				if (IS_QLA82XX(ha))
6314 					qla82xx_device_state_handler(base_vha);
6315 				if (IS_QLA8044(ha))
6316 					qla8044_device_state_handler(base_vha);
6317 				clear_bit(ISP_QUIESCE_NEEDED,
6318 				    &base_vha->dpc_flags);
6319 				if (!ha->flags.quiesce_owner) {
6320 					qla2x00_perform_loop_resync(base_vha);
6321 					if (IS_QLA82XX(ha)) {
6322 						qla82xx_idc_lock(ha);
6323 						qla82xx_clear_qsnt_ready(
6324 						    base_vha);
6325 						qla82xx_idc_unlock(ha);
6326 					} else if (IS_QLA8044(ha)) {
6327 						qla8044_idc_lock(ha);
6328 						qla8044_clear_qsnt_ready(
6329 						    base_vha);
6330 						qla8044_idc_unlock(ha);
6331 					}
6332 				}
6333 			} else {
6334 				clear_bit(ISP_QUIESCE_NEEDED,
6335 				    &base_vha->dpc_flags);
6336 				qla2x00_quiesce_io(base_vha);
6337 			}
6338 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
6339 			    "Quiescence mode end.\n");
6340 		}
6341 
6342 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
6343 				&base_vha->dpc_flags) &&
6344 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
6345 
6346 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
6347 			    "Reset marker scheduled.\n");
6348 			qla2x00_rst_aen(base_vha);
6349 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
6350 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
6351 			    "Reset marker end.\n");
6352 		}
6353 
6354 		/* Retry each device up to login retry count */
6355 		if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
6356 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
6357 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
6358 
6359 			if (!base_vha->relogin_jif ||
6360 			    time_after_eq(jiffies, base_vha->relogin_jif)) {
6361 				base_vha->relogin_jif = jiffies + HZ;
6362 				clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
6363 
6364 				ql_dbg(ql_dbg_disc, base_vha, 0x400d,
6365 				    "Relogin scheduled.\n");
6366 				qla24xx_post_relogin_work(base_vha);
6367 			}
6368 		}
6369 loop_resync_check:
6370 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
6371 		    &base_vha->dpc_flags)) {
6372 
6373 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
6374 			    "Loop resync scheduled.\n");
6375 
6376 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
6377 			    &base_vha->dpc_flags))) {
6378 
6379 				qla2x00_loop_resync(base_vha);
6380 
6381 				clear_bit(LOOP_RESYNC_ACTIVE,
6382 						&base_vha->dpc_flags);
6383 			}
6384 
6385 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
6386 			    "Loop resync end.\n");
6387 		}
6388 
6389 		if (IS_QLAFX00(ha))
6390 			goto intr_on_check;
6391 
6392 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
6393 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
6394 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
6395 			qla2xxx_flash_npiv_conf(base_vha);
6396 		}
6397 
6398 intr_on_check:
6399 		if (!ha->interrupts_on)
6400 			ha->isp_ops->enable_intrs(ha);
6401 
6402 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
6403 					&base_vha->dpc_flags)) {
6404 			if (ha->beacon_blink_led == 1)
6405 				ha->isp_ops->beacon_blink(base_vha);
6406 		}
6407 
6408 		/* qpair online check */
6409 		if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
6410 		    &base_vha->dpc_flags)) {
6411 			if (ha->flags.eeh_busy ||
6412 			    ha->flags.pci_channel_io_perm_failure)
6413 				online = 0;
6414 			else
6415 				online = 1;
6416 
6417 			mutex_lock(&ha->mq_lock);
6418 			list_for_each_entry(qpair, &base_vha->qp_list,
6419 			    qp_list_elem)
6420 			qpair->online = online;
6421 			mutex_unlock(&ha->mq_lock);
6422 		}
6423 
6424 		if (test_and_clear_bit(SET_NVME_ZIO_THRESHOLD_NEEDED,
6425 		    &base_vha->dpc_flags)) {
6426 			ql_log(ql_log_info, base_vha, 0xffffff,
6427 				"nvme: SET ZIO Activity exchange threshold to %d.\n",
6428 						ha->nvme_last_rptd_aen);
6429 			if (qla27xx_set_zio_threshold(base_vha,
6430 			    ha->nvme_last_rptd_aen)) {
6431 				ql_log(ql_log_info, base_vha, 0xffffff,
6432 				    "nvme: Unable to SET ZIO Activity exchange threshold to %d.\n",
6433 				    ha->nvme_last_rptd_aen);
6434 			}
6435 		}
6436 
6437 		if (test_and_clear_bit(SET_ZIO_THRESHOLD_NEEDED,
6438 		    &base_vha->dpc_flags)) {
6439 			ql_log(ql_log_info, base_vha, 0xffffff,
6440 			    "SET ZIO Activity exchange threshold to %d.\n",
6441 			    ha->last_zio_threshold);
6442 			qla27xx_set_zio_threshold(base_vha,
6443 			    ha->last_zio_threshold);
6444 		}
6445 
6446 		if (!IS_QLAFX00(ha))
6447 			qla2x00_do_dpc_all_vps(base_vha);
6448 
6449 		if (test_and_clear_bit(N2N_LINK_RESET,
6450 			&base_vha->dpc_flags)) {
6451 			qla2x00_lip_reset(base_vha);
6452 		}
6453 
6454 		ha->dpc_active = 0;
6455 end_loop:
6456 		set_current_state(TASK_INTERRUPTIBLE);
6457 	} /* End of while(1) */
6458 	__set_current_state(TASK_RUNNING);
6459 
6460 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
6461 	    "DPC handler exiting.\n");
6462 
6463 	/*
6464 	 * Make sure that nobody tries to wake us up again.
6465 	 */
6466 	ha->dpc_active = 0;
6467 
6468 	/* Cleanup any residual CTX SRBs. */
6469 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
6470 
6471 	return 0;
6472 }
6473 
6474 void
6475 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
6476 {
6477 	struct qla_hw_data *ha = vha->hw;
6478 	struct task_struct *t = ha->dpc_thread;
6479 
6480 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
6481 		wake_up_process(t);
6482 }
6483 
6484 /*
6485 *  qla2x00_rst_aen
6486 *      Processes asynchronous reset.
6487 *
6488 * Input:
6489 *      ha  = adapter block pointer.
6490 */
6491 static void
6492 qla2x00_rst_aen(scsi_qla_host_t *vha)
6493 {
6494 	if (vha->flags.online && !vha->flags.reset_active &&
6495 	    !atomic_read(&vha->loop_down_timer) &&
6496 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
6497 		do {
6498 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6499 
6500 			/*
6501 			 * Issue marker command only when we are going to start
6502 			 * the I/O.
6503 			 */
6504 			vha->marker_needed = 1;
6505 		} while (!atomic_read(&vha->loop_down_timer) &&
6506 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
6507 	}
6508 }
6509 
6510 /**************************************************************************
6511 *   qla2x00_timer
6512 *
6513 * Description:
6514 *   One second timer
6515 *
6516 * Context: Interrupt
6517 ***************************************************************************/
6518 void
6519 qla2x00_timer(struct timer_list *t)
6520 {
6521 	scsi_qla_host_t *vha = from_timer(vha, t, timer);
6522 	unsigned long	cpu_flags = 0;
6523 	int		start_dpc = 0;
6524 	int		index;
6525 	srb_t		*sp;
6526 	uint16_t        w;
6527 	struct qla_hw_data *ha = vha->hw;
6528 	struct req_que *req;
6529 
6530 	if (ha->flags.eeh_busy) {
6531 		ql_dbg(ql_dbg_timer, vha, 0x6000,
6532 		    "EEH = %d, restarting timer.\n",
6533 		    ha->flags.eeh_busy);
6534 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
6535 		return;
6536 	}
6537 
6538 	/*
6539 	 * Hardware read to raise pending EEH errors during mailbox waits. If
6540 	 * the read returns -1 then disable the board.
6541 	 */
6542 	if (!pci_channel_offline(ha->pdev)) {
6543 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
6544 		qla2x00_check_reg16_for_disconnect(vha, w);
6545 	}
6546 
6547 	/* Make sure qla82xx_watchdog is run only for physical port */
6548 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
6549 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
6550 			start_dpc++;
6551 		if (IS_QLA82XX(ha))
6552 			qla82xx_watchdog(vha);
6553 		else if (IS_QLA8044(ha))
6554 			qla8044_watchdog(vha);
6555 	}
6556 
6557 	if (!vha->vp_idx && IS_QLAFX00(ha))
6558 		qlafx00_timer_routine(vha);
6559 
6560 	/* Loop down handler. */
6561 	if (atomic_read(&vha->loop_down_timer) > 0 &&
6562 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
6563 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
6564 		&& vha->flags.online) {
6565 
6566 		if (atomic_read(&vha->loop_down_timer) ==
6567 		    vha->loop_down_abort_time) {
6568 
6569 			ql_log(ql_log_info, vha, 0x6008,
6570 			    "Loop down - aborting the queues before time expires.\n");
6571 
6572 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
6573 				atomic_set(&vha->loop_state, LOOP_DEAD);
6574 
6575 			/*
6576 			 * Schedule an ISP abort to return any FCP2-device
6577 			 * commands.
6578 			 */
6579 			/* NPIV - scan physical port only */
6580 			if (!vha->vp_idx) {
6581 				spin_lock_irqsave(&ha->hardware_lock,
6582 				    cpu_flags);
6583 				req = ha->req_q_map[0];
6584 				for (index = 1;
6585 				    index < req->num_outstanding_cmds;
6586 				    index++) {
6587 					fc_port_t *sfcp;
6588 
6589 					sp = req->outstanding_cmds[index];
6590 					if (!sp)
6591 						continue;
6592 					if (sp->cmd_type != TYPE_SRB)
6593 						continue;
6594 					if (sp->type != SRB_SCSI_CMD)
6595 						continue;
6596 					sfcp = sp->fcport;
6597 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
6598 						continue;
6599 
6600 					if (IS_QLA82XX(ha))
6601 						set_bit(FCOE_CTX_RESET_NEEDED,
6602 							&vha->dpc_flags);
6603 					else
6604 						set_bit(ISP_ABORT_NEEDED,
6605 							&vha->dpc_flags);
6606 					break;
6607 				}
6608 				spin_unlock_irqrestore(&ha->hardware_lock,
6609 								cpu_flags);
6610 			}
6611 			start_dpc++;
6612 		}
6613 
6614 		/* if the loop has been down for 4 minutes, reinit adapter */
6615 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
6616 			if (!(vha->device_flags & DFLG_NO_CABLE)) {
6617 				ql_log(ql_log_warn, vha, 0x6009,
6618 				    "Loop down - aborting ISP.\n");
6619 
6620 				if (IS_QLA82XX(ha))
6621 					set_bit(FCOE_CTX_RESET_NEEDED,
6622 						&vha->dpc_flags);
6623 				else
6624 					set_bit(ISP_ABORT_NEEDED,
6625 						&vha->dpc_flags);
6626 			}
6627 		}
6628 		ql_dbg(ql_dbg_timer, vha, 0x600a,
6629 		    "Loop down - seconds remaining %d.\n",
6630 		    atomic_read(&vha->loop_down_timer));
6631 	}
6632 	/* Check if beacon LED needs to be blinked for physical host only */
6633 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
6634 		/* There is no beacon_blink function for ISP82xx */
6635 		if (!IS_P3P_TYPE(ha)) {
6636 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
6637 			start_dpc++;
6638 		}
6639 	}
6640 
6641 	/* Process any deferred work. */
6642 	if (!list_empty(&vha->work_list)) {
6643 		unsigned long flags;
6644 		bool q = false;
6645 
6646 		spin_lock_irqsave(&vha->work_lock, flags);
6647 		if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
6648 			q = true;
6649 		spin_unlock_irqrestore(&vha->work_lock, flags);
6650 		if (q)
6651 			queue_work(vha->hw->wq, &vha->iocb_work);
6652 	}
6653 
6654 	/*
6655 	 * FC-NVME
6656 	 * see if the active AEN count has changed from what was last reported.
6657 	 */
6658 	if (!vha->vp_idx &&
6659 	    (atomic_read(&ha->nvme_active_aen_cnt) != ha->nvme_last_rptd_aen) &&
6660 	    ha->zio_mode == QLA_ZIO_MODE_6 &&
6661 	    !ha->flags.host_shutting_down) {
6662 		ql_log(ql_log_info, vha, 0x3002,
6663 		    "nvme: Sched: Set ZIO exchange threshold to %d.\n",
6664 		    ha->nvme_last_rptd_aen);
6665 		ha->nvme_last_rptd_aen = atomic_read(&ha->nvme_active_aen_cnt);
6666 		set_bit(SET_NVME_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
6667 		start_dpc++;
6668 	}
6669 
6670 	if (!vha->vp_idx &&
6671 	    (atomic_read(&ha->zio_threshold) != ha->last_zio_threshold) &&
6672 	    (ha->zio_mode == QLA_ZIO_MODE_6) &&
6673 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
6674 		ql_log(ql_log_info, vha, 0x3002,
6675 		    "Sched: Set ZIO exchange threshold to %d.\n",
6676 		    ha->last_zio_threshold);
6677 		ha->last_zio_threshold = atomic_read(&ha->zio_threshold);
6678 		set_bit(SET_ZIO_THRESHOLD_NEEDED, &vha->dpc_flags);
6679 		start_dpc++;
6680 	}
6681 
6682 	/* Schedule the DPC routine if needed */
6683 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
6684 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
6685 	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
6686 	    start_dpc ||
6687 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
6688 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
6689 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
6690 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
6691 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
6692 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
6693 		ql_dbg(ql_dbg_timer, vha, 0x600b,
6694 		    "isp_abort_needed=%d loop_resync_needed=%d "
6695 		    "fcport_update_needed=%d start_dpc=%d "
6696 		    "reset_marker_needed=%d",
6697 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
6698 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
6699 		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
6700 		    start_dpc,
6701 		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
6702 		ql_dbg(ql_dbg_timer, vha, 0x600c,
6703 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
6704 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
6705 		    "relogin_needed=%d.\n",
6706 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
6707 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
6708 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
6709 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
6710 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
6711 		qla2xxx_wake_dpc(vha);
6712 	}
6713 
6714 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
6715 }
6716 
6717 /* Firmware interface routines. */
6718 
6719 #define FW_ISP21XX	0
6720 #define FW_ISP22XX	1
6721 #define FW_ISP2300	2
6722 #define FW_ISP2322	3
6723 #define FW_ISP24XX	4
6724 #define FW_ISP25XX	5
6725 #define FW_ISP81XX	6
6726 #define FW_ISP82XX	7
6727 #define FW_ISP2031	8
6728 #define FW_ISP8031	9
6729 #define FW_ISP27XX	10
6730 #define FW_ISP28XX	11
6731 
6732 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
6733 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
6734 #define FW_FILE_ISP2300	"ql2300_fw.bin"
6735 #define FW_FILE_ISP2322	"ql2322_fw.bin"
6736 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
6737 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
6738 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
6739 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
6740 #define FW_FILE_ISP2031	"ql2600_fw.bin"
6741 #define FW_FILE_ISP8031	"ql8300_fw.bin"
6742 #define FW_FILE_ISP27XX	"ql2700_fw.bin"
6743 #define FW_FILE_ISP28XX	"ql2800_fw.bin"
6744 
6745 
6746 static DEFINE_MUTEX(qla_fw_lock);
6747 
6748 static struct fw_blob qla_fw_blobs[] = {
6749 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
6750 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
6751 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
6752 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
6753 	{ .name = FW_FILE_ISP24XX, },
6754 	{ .name = FW_FILE_ISP25XX, },
6755 	{ .name = FW_FILE_ISP81XX, },
6756 	{ .name = FW_FILE_ISP82XX, },
6757 	{ .name = FW_FILE_ISP2031, },
6758 	{ .name = FW_FILE_ISP8031, },
6759 	{ .name = FW_FILE_ISP27XX, },
6760 	{ .name = FW_FILE_ISP28XX, },
6761 	{ .name = NULL, },
6762 };
6763 
6764 struct fw_blob *
6765 qla2x00_request_firmware(scsi_qla_host_t *vha)
6766 {
6767 	struct qla_hw_data *ha = vha->hw;
6768 	struct fw_blob *blob;
6769 
6770 	if (IS_QLA2100(ha)) {
6771 		blob = &qla_fw_blobs[FW_ISP21XX];
6772 	} else if (IS_QLA2200(ha)) {
6773 		blob = &qla_fw_blobs[FW_ISP22XX];
6774 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
6775 		blob = &qla_fw_blobs[FW_ISP2300];
6776 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
6777 		blob = &qla_fw_blobs[FW_ISP2322];
6778 	} else if (IS_QLA24XX_TYPE(ha)) {
6779 		blob = &qla_fw_blobs[FW_ISP24XX];
6780 	} else if (IS_QLA25XX(ha)) {
6781 		blob = &qla_fw_blobs[FW_ISP25XX];
6782 	} else if (IS_QLA81XX(ha)) {
6783 		blob = &qla_fw_blobs[FW_ISP81XX];
6784 	} else if (IS_QLA82XX(ha)) {
6785 		blob = &qla_fw_blobs[FW_ISP82XX];
6786 	} else if (IS_QLA2031(ha)) {
6787 		blob = &qla_fw_blobs[FW_ISP2031];
6788 	} else if (IS_QLA8031(ha)) {
6789 		blob = &qla_fw_blobs[FW_ISP8031];
6790 	} else if (IS_QLA27XX(ha)) {
6791 		blob = &qla_fw_blobs[FW_ISP27XX];
6792 	} else if (IS_QLA28XX(ha)) {
6793 		blob = &qla_fw_blobs[FW_ISP28XX];
6794 	} else {
6795 		return NULL;
6796 	}
6797 
6798 	if (!blob->name)
6799 		return NULL;
6800 
6801 	mutex_lock(&qla_fw_lock);
6802 	if (blob->fw)
6803 		goto out;
6804 
6805 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
6806 		ql_log(ql_log_warn, vha, 0x0063,
6807 		    "Failed to load firmware image (%s).\n", blob->name);
6808 		blob->fw = NULL;
6809 		blob = NULL;
6810 	}
6811 
6812 out:
6813 	mutex_unlock(&qla_fw_lock);
6814 	return blob;
6815 }
6816 
6817 static void
6818 qla2x00_release_firmware(void)
6819 {
6820 	struct fw_blob *blob;
6821 
6822 	mutex_lock(&qla_fw_lock);
6823 	for (blob = qla_fw_blobs; blob->name; blob++)
6824 		release_firmware(blob->fw);
6825 	mutex_unlock(&qla_fw_lock);
6826 }
6827 
6828 static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
6829 {
6830 	struct qla_hw_data *ha = vha->hw;
6831 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
6832 	struct qla_qpair *qpair = NULL;
6833 	struct scsi_qla_host *vp;
6834 	fc_port_t *fcport;
6835 	int i;
6836 	unsigned long flags;
6837 
6838 	ha->chip_reset++;
6839 
6840 	ha->base_qpair->chip_reset = ha->chip_reset;
6841 	for (i = 0; i < ha->max_qpairs; i++) {
6842 		if (ha->queue_pair_map[i])
6843 			ha->queue_pair_map[i]->chip_reset =
6844 			    ha->base_qpair->chip_reset;
6845 	}
6846 
6847 	/* purge MBox commands */
6848 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
6849 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
6850 		complete(&ha->mbx_intr_comp);
6851 	}
6852 
6853 	i = 0;
6854 
6855 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
6856 	    atomic_read(&ha->num_pend_mbx_stage2) ||
6857 	    atomic_read(&ha->num_pend_mbx_stage1)) {
6858 		msleep(20);
6859 		i++;
6860 		if (i > 50)
6861 			break;
6862 	}
6863 
6864 	ha->flags.purge_mbox = 0;
6865 
6866 	mutex_lock(&ha->mq_lock);
6867 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
6868 		qpair->online = 0;
6869 	mutex_unlock(&ha->mq_lock);
6870 
6871 	qla2x00_mark_all_devices_lost(vha, 0);
6872 
6873 	spin_lock_irqsave(&ha->vport_slock, flags);
6874 	list_for_each_entry(vp, &ha->vp_list, list) {
6875 		atomic_inc(&vp->vref_count);
6876 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6877 		qla2x00_mark_all_devices_lost(vp, 0);
6878 		spin_lock_irqsave(&ha->vport_slock, flags);
6879 		atomic_dec(&vp->vref_count);
6880 	}
6881 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6882 
6883 	/* Clear all async request states across all VPs. */
6884 	list_for_each_entry(fcport, &vha->vp_fcports, list)
6885 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6886 
6887 	spin_lock_irqsave(&ha->vport_slock, flags);
6888 	list_for_each_entry(vp, &ha->vp_list, list) {
6889 		atomic_inc(&vp->vref_count);
6890 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6891 		list_for_each_entry(fcport, &vp->vp_fcports, list)
6892 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6893 		spin_lock_irqsave(&ha->vport_slock, flags);
6894 		atomic_dec(&vp->vref_count);
6895 	}
6896 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6897 }
6898 
6899 
6900 static pci_ers_result_t
6901 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
6902 {
6903 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
6904 	struct qla_hw_data *ha = vha->hw;
6905 
6906 	ql_dbg(ql_dbg_aer, vha, 0x9000,
6907 	    "PCI error detected, state %x.\n", state);
6908 
6909 	if (!atomic_read(&pdev->enable_cnt)) {
6910 		ql_log(ql_log_info, vha, 0xffff,
6911 			"PCI device is disabled,state %x\n", state);
6912 		return PCI_ERS_RESULT_NEED_RESET;
6913 	}
6914 
6915 	switch (state) {
6916 	case pci_channel_io_normal:
6917 		ha->flags.eeh_busy = 0;
6918 		if (ql2xmqsupport || ql2xnvmeenable) {
6919 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
6920 			qla2xxx_wake_dpc(vha);
6921 		}
6922 		return PCI_ERS_RESULT_CAN_RECOVER;
6923 	case pci_channel_io_frozen:
6924 		ha->flags.eeh_busy = 1;
6925 		qla_pci_error_cleanup(vha);
6926 		return PCI_ERS_RESULT_NEED_RESET;
6927 	case pci_channel_io_perm_failure:
6928 		ha->flags.pci_channel_io_perm_failure = 1;
6929 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
6930 		if (ql2xmqsupport || ql2xnvmeenable) {
6931 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
6932 			qla2xxx_wake_dpc(vha);
6933 		}
6934 		return PCI_ERS_RESULT_DISCONNECT;
6935 	}
6936 	return PCI_ERS_RESULT_NEED_RESET;
6937 }
6938 
6939 static pci_ers_result_t
6940 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
6941 {
6942 	int risc_paused = 0;
6943 	uint32_t stat;
6944 	unsigned long flags;
6945 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
6946 	struct qla_hw_data *ha = base_vha->hw;
6947 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
6948 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
6949 
6950 	if (IS_QLA82XX(ha))
6951 		return PCI_ERS_RESULT_RECOVERED;
6952 
6953 	spin_lock_irqsave(&ha->hardware_lock, flags);
6954 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
6955 		stat = RD_REG_DWORD(&reg->hccr);
6956 		if (stat & HCCR_RISC_PAUSE)
6957 			risc_paused = 1;
6958 	} else if (IS_QLA23XX(ha)) {
6959 		stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
6960 		if (stat & HSR_RISC_PAUSED)
6961 			risc_paused = 1;
6962 	} else if (IS_FWI2_CAPABLE(ha)) {
6963 		stat = RD_REG_DWORD(&reg24->host_status);
6964 		if (stat & HSRX_RISC_PAUSED)
6965 			risc_paused = 1;
6966 	}
6967 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
6968 
6969 	if (risc_paused) {
6970 		ql_log(ql_log_info, base_vha, 0x9003,
6971 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
6972 		ha->isp_ops->fw_dump(base_vha, 0);
6973 
6974 		return PCI_ERS_RESULT_NEED_RESET;
6975 	} else
6976 		return PCI_ERS_RESULT_RECOVERED;
6977 }
6978 
6979 static pci_ers_result_t
6980 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
6981 {
6982 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
6983 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
6984 	struct qla_hw_data *ha = base_vha->hw;
6985 	int rc;
6986 	struct qla_qpair *qpair = NULL;
6987 
6988 	ql_dbg(ql_dbg_aer, base_vha, 0x9004,
6989 	    "Slot Reset.\n");
6990 
6991 	/* Workaround: qla2xxx driver which access hardware earlier
6992 	 * needs error state to be pci_channel_io_online.
6993 	 * Otherwise mailbox command timesout.
6994 	 */
6995 	pdev->error_state = pci_channel_io_normal;
6996 
6997 	pci_restore_state(pdev);
6998 
6999 	/* pci_restore_state() clears the saved_state flag of the device
7000 	 * save restored state which resets saved_state flag
7001 	 */
7002 	pci_save_state(pdev);
7003 
7004 	if (ha->mem_only)
7005 		rc = pci_enable_device_mem(pdev);
7006 	else
7007 		rc = pci_enable_device(pdev);
7008 
7009 	if (rc) {
7010 		ql_log(ql_log_warn, base_vha, 0x9005,
7011 		    "Can't re-enable PCI device after reset.\n");
7012 		goto exit_slot_reset;
7013 	}
7014 
7015 
7016 	if (ha->isp_ops->pci_config(base_vha))
7017 		goto exit_slot_reset;
7018 
7019 	mutex_lock(&ha->mq_lock);
7020 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7021 		qpair->online = 1;
7022 	mutex_unlock(&ha->mq_lock);
7023 
7024 	base_vha->flags.online = 1;
7025 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7026 	if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
7027 		ret =  PCI_ERS_RESULT_RECOVERED;
7028 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7029 
7030 
7031 exit_slot_reset:
7032 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
7033 	    "slot_reset return %x.\n", ret);
7034 
7035 	return ret;
7036 }
7037 
7038 static void
7039 qla2xxx_pci_resume(struct pci_dev *pdev)
7040 {
7041 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7042 	struct qla_hw_data *ha = base_vha->hw;
7043 	int ret;
7044 
7045 	ql_dbg(ql_dbg_aer, base_vha, 0x900f,
7046 	    "pci_resume.\n");
7047 
7048 	ha->flags.eeh_busy = 0;
7049 
7050 	ret = qla2x00_wait_for_hba_online(base_vha);
7051 	if (ret != QLA_SUCCESS) {
7052 		ql_log(ql_log_fatal, base_vha, 0x9002,
7053 		    "The device failed to resume I/O from slot/link_reset.\n");
7054 	}
7055 }
7056 
7057 static void
7058 qla_pci_reset_prepare(struct pci_dev *pdev)
7059 {
7060 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7061 	struct qla_hw_data *ha = base_vha->hw;
7062 	struct qla_qpair *qpair;
7063 
7064 	ql_log(ql_log_warn, base_vha, 0xffff,
7065 	    "%s.\n", __func__);
7066 
7067 	/*
7068 	 * PCI FLR/function reset is about to reset the
7069 	 * slot. Stop the chip to stop all DMA access.
7070 	 * It is assumed that pci_reset_done will be called
7071 	 * after FLR to resume Chip operation.
7072 	 */
7073 	ha->flags.eeh_busy = 1;
7074 	mutex_lock(&ha->mq_lock);
7075 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7076 		qpair->online = 0;
7077 	mutex_unlock(&ha->mq_lock);
7078 
7079 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7080 	qla2x00_abort_isp_cleanup(base_vha);
7081 	qla2x00_abort_all_cmds(base_vha, DID_RESET << 16);
7082 }
7083 
7084 static void
7085 qla_pci_reset_done(struct pci_dev *pdev)
7086 {
7087 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
7088 	struct qla_hw_data *ha = base_vha->hw;
7089 	struct qla_qpair *qpair;
7090 
7091 	ql_log(ql_log_warn, base_vha, 0xffff,
7092 	    "%s.\n", __func__);
7093 
7094 	/*
7095 	 * FLR just completed by PCI layer. Resume adapter
7096 	 */
7097 	ha->flags.eeh_busy = 0;
7098 	mutex_lock(&ha->mq_lock);
7099 	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
7100 		qpair->online = 1;
7101 	mutex_unlock(&ha->mq_lock);
7102 
7103 	base_vha->flags.online = 1;
7104 	ha->isp_ops->abort_isp(base_vha);
7105 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
7106 }
7107 
7108 static int qla2xxx_map_queues(struct Scsi_Host *shost)
7109 {
7110 	int rc;
7111 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
7112 	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
7113 
7114 	if (USER_CTRL_IRQ(vha->hw) || !vha->hw->mqiobase)
7115 		rc = blk_mq_map_queues(qmap);
7116 	else
7117 		rc = blk_mq_pci_map_queues(qmap, vha->hw->pdev, vha->irq_offset);
7118 	return rc;
7119 }
7120 
7121 struct scsi_host_template qla2xxx_driver_template = {
7122 	.module			= THIS_MODULE,
7123 	.name			= QLA2XXX_DRIVER_NAME,
7124 	.queuecommand		= qla2xxx_queuecommand,
7125 
7126 	.eh_timed_out		= fc_eh_timed_out,
7127 	.eh_abort_handler	= qla2xxx_eh_abort,
7128 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
7129 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
7130 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
7131 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
7132 
7133 	.slave_configure	= qla2xxx_slave_configure,
7134 
7135 	.slave_alloc		= qla2xxx_slave_alloc,
7136 	.slave_destroy		= qla2xxx_slave_destroy,
7137 	.scan_finished		= qla2xxx_scan_finished,
7138 	.scan_start		= qla2xxx_scan_start,
7139 	.change_queue_depth	= scsi_change_queue_depth,
7140 	.map_queues             = qla2xxx_map_queues,
7141 	.this_id		= -1,
7142 	.cmd_per_lun		= 3,
7143 	.sg_tablesize		= SG_ALL,
7144 
7145 	.max_sectors		= 0xFFFF,
7146 	.shost_attrs		= qla2x00_host_attrs,
7147 
7148 	.supported_mode		= MODE_INITIATOR,
7149 	.track_queue_depth	= 1,
7150 };
7151 
7152 static const struct pci_error_handlers qla2xxx_err_handler = {
7153 	.error_detected = qla2xxx_pci_error_detected,
7154 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
7155 	.slot_reset = qla2xxx_pci_slot_reset,
7156 	.resume = qla2xxx_pci_resume,
7157 	.reset_prepare = qla_pci_reset_prepare,
7158 	.reset_done = qla_pci_reset_done,
7159 };
7160 
7161 static struct pci_device_id qla2xxx_pci_tbl[] = {
7162 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
7163 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
7164 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
7165 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
7166 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
7167 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
7168 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
7169 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
7170 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
7171 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
7172 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
7173 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
7174 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
7175 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
7176 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
7177 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
7178 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
7179 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
7180 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
7181 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
7182 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
7183 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
7184 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2061) },
7185 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2081) },
7186 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2281) },
7187 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2089) },
7188 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2289) },
7189 	{ 0 },
7190 };
7191 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
7192 
7193 static struct pci_driver qla2xxx_pci_driver = {
7194 	.name		= QLA2XXX_DRIVER_NAME,
7195 	.driver		= {
7196 		.owner		= THIS_MODULE,
7197 	},
7198 	.id_table	= qla2xxx_pci_tbl,
7199 	.probe		= qla2x00_probe_one,
7200 	.remove		= qla2x00_remove_one,
7201 	.shutdown	= qla2x00_shutdown,
7202 	.err_handler	= &qla2xxx_err_handler,
7203 };
7204 
7205 static const struct file_operations apidev_fops = {
7206 	.owner = THIS_MODULE,
7207 	.llseek = noop_llseek,
7208 };
7209 
7210 /**
7211  * qla2x00_module_init - Module initialization.
7212  **/
7213 static int __init
7214 qla2x00_module_init(void)
7215 {
7216 	int ret = 0;
7217 
7218 	BUILD_BUG_ON(sizeof(cmd_entry_t) != 64);
7219 	BUILD_BUG_ON(sizeof(cont_a64_entry_t) != 64);
7220 	BUILD_BUG_ON(sizeof(cont_entry_t) != 64);
7221 	BUILD_BUG_ON(sizeof(init_cb_t) != 96);
7222 	BUILD_BUG_ON(sizeof(ms_iocb_entry_t) != 64);
7223 	BUILD_BUG_ON(sizeof(request_t) != 64);
7224 	BUILD_BUG_ON(sizeof(struct access_chip_84xx) != 64);
7225 	BUILD_BUG_ON(sizeof(struct cmd_bidir) != 64);
7226 	BUILD_BUG_ON(sizeof(struct cmd_nvme) != 64);
7227 	BUILD_BUG_ON(sizeof(struct cmd_type_6) != 64);
7228 	BUILD_BUG_ON(sizeof(struct cmd_type_7) != 64);
7229 	BUILD_BUG_ON(sizeof(struct cmd_type_7_fx00) != 64);
7230 	BUILD_BUG_ON(sizeof(struct cmd_type_crc_2) != 64);
7231 	BUILD_BUG_ON(sizeof(struct ct_entry_24xx) != 64);
7232 	BUILD_BUG_ON(sizeof(struct ctio_crc2_to_fw) != 64);
7233 	BUILD_BUG_ON(sizeof(struct els_entry_24xx) != 64);
7234 	BUILD_BUG_ON(sizeof(struct fxdisc_entry_fx00) != 64);
7235 	BUILD_BUG_ON(sizeof(struct init_cb_24xx) != 128);
7236 	BUILD_BUG_ON(sizeof(struct init_cb_81xx) != 128);
7237 	BUILD_BUG_ON(sizeof(struct pt_ls4_request) != 64);
7238 	BUILD_BUG_ON(sizeof(struct sns_cmd_pkt) != 2064);
7239 	BUILD_BUG_ON(sizeof(struct verify_chip_entry_84xx) != 64);
7240 	BUILD_BUG_ON(sizeof(struct vf_evfp_entry_24xx) != 56);
7241 
7242 	/* Allocate cache for SRBs. */
7243 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
7244 	    SLAB_HWCACHE_ALIGN, NULL);
7245 	if (srb_cachep == NULL) {
7246 		ql_log(ql_log_fatal, NULL, 0x0001,
7247 		    "Unable to allocate SRB cache...Failing load!.\n");
7248 		return -ENOMEM;
7249 	}
7250 
7251 	/* Initialize target kmem_cache and mem_pools */
7252 	ret = qlt_init();
7253 	if (ret < 0) {
7254 		goto destroy_cache;
7255 	} else if (ret > 0) {
7256 		/*
7257 		 * If initiator mode is explictly disabled by qlt_init(),
7258 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
7259 		 * performing scsi_scan_target() during LOOP UP event.
7260 		 */
7261 		qla2xxx_transport_functions.disable_target_scan = 1;
7262 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
7263 	}
7264 
7265 	/* Derive version string. */
7266 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
7267 	if (ql2xextended_error_logging)
7268 		strcat(qla2x00_version_str, "-debug");
7269 	if (ql2xextended_error_logging == 1)
7270 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
7271 
7272 	if (ql2x_ini_mode == QLA2XXX_INI_MODE_DUAL)
7273 		qla_insert_tgt_attrs();
7274 
7275 	qla2xxx_transport_template =
7276 	    fc_attach_transport(&qla2xxx_transport_functions);
7277 	if (!qla2xxx_transport_template) {
7278 		ql_log(ql_log_fatal, NULL, 0x0002,
7279 		    "fc_attach_transport failed...Failing load!.\n");
7280 		ret = -ENODEV;
7281 		goto qlt_exit;
7282 	}
7283 
7284 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
7285 	if (apidev_major < 0) {
7286 		ql_log(ql_log_fatal, NULL, 0x0003,
7287 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
7288 	}
7289 
7290 	qla2xxx_transport_vport_template =
7291 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
7292 	if (!qla2xxx_transport_vport_template) {
7293 		ql_log(ql_log_fatal, NULL, 0x0004,
7294 		    "fc_attach_transport vport failed...Failing load!.\n");
7295 		ret = -ENODEV;
7296 		goto unreg_chrdev;
7297 	}
7298 	ql_log(ql_log_info, NULL, 0x0005,
7299 	    "QLogic Fibre Channel HBA Driver: %s.\n",
7300 	    qla2x00_version_str);
7301 	ret = pci_register_driver(&qla2xxx_pci_driver);
7302 	if (ret) {
7303 		ql_log(ql_log_fatal, NULL, 0x0006,
7304 		    "pci_register_driver failed...ret=%d Failing load!.\n",
7305 		    ret);
7306 		goto release_vport_transport;
7307 	}
7308 	return ret;
7309 
7310 release_vport_transport:
7311 	fc_release_transport(qla2xxx_transport_vport_template);
7312 
7313 unreg_chrdev:
7314 	if (apidev_major >= 0)
7315 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
7316 	fc_release_transport(qla2xxx_transport_template);
7317 
7318 qlt_exit:
7319 	qlt_exit();
7320 
7321 destroy_cache:
7322 	kmem_cache_destroy(srb_cachep);
7323 	return ret;
7324 }
7325 
7326 /**
7327  * qla2x00_module_exit - Module cleanup.
7328  **/
7329 static void __exit
7330 qla2x00_module_exit(void)
7331 {
7332 	pci_unregister_driver(&qla2xxx_pci_driver);
7333 	qla2x00_release_firmware();
7334 	kmem_cache_destroy(ctx_cachep);
7335 	fc_release_transport(qla2xxx_transport_vport_template);
7336 	if (apidev_major >= 0)
7337 		unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
7338 	fc_release_transport(qla2xxx_transport_template);
7339 	qlt_exit();
7340 	kmem_cache_destroy(srb_cachep);
7341 }
7342 
7343 module_init(qla2x00_module_init);
7344 module_exit(qla2x00_module_exit);
7345 
7346 MODULE_AUTHOR("QLogic Corporation");
7347 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
7348 MODULE_LICENSE("GPL");
7349 MODULE_VERSION(QLA2XXX_VERSION);
7350 MODULE_FIRMWARE(FW_FILE_ISP21XX);
7351 MODULE_FIRMWARE(FW_FILE_ISP22XX);
7352 MODULE_FIRMWARE(FW_FILE_ISP2300);
7353 MODULE_FIRMWARE(FW_FILE_ISP2322);
7354 MODULE_FIRMWARE(FW_FILE_ISP24XX);
7355 MODULE_FIRMWARE(FW_FILE_ISP25XX);
7356