xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_os.c (revision 4f6cce39)
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 <scsi/scsi_tcq.h>
18 #include <scsi/scsicam.h>
19 #include <scsi/scsi_transport.h>
20 #include <scsi/scsi_transport_fc.h>
21 
22 #include "qla_target.h"
23 
24 /*
25  * Driver version
26  */
27 char qla2x00_version_str[40];
28 
29 static int apidev_major;
30 
31 /*
32  * SRB allocation cache
33  */
34 struct kmem_cache *srb_cachep;
35 
36 /*
37  * CT6 CTX allocation cache
38  */
39 static struct kmem_cache *ctx_cachep;
40 /*
41  * error level for logging
42  */
43 int ql_errlev = ql_log_all;
44 
45 static int ql2xenableclass2;
46 module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
47 MODULE_PARM_DESC(ql2xenableclass2,
48 		"Specify if Class 2 operations are supported from the very "
49 		"beginning. Default is 0 - class 2 not supported.");
50 
51 
52 int ql2xlogintimeout = 20;
53 module_param(ql2xlogintimeout, int, S_IRUGO);
54 MODULE_PARM_DESC(ql2xlogintimeout,
55 		"Login timeout value in seconds.");
56 
57 int qlport_down_retry;
58 module_param(qlport_down_retry, int, S_IRUGO);
59 MODULE_PARM_DESC(qlport_down_retry,
60 		"Maximum number of command retries to a port that returns "
61 		"a PORT-DOWN status.");
62 
63 int ql2xplogiabsentdevice;
64 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
65 MODULE_PARM_DESC(ql2xplogiabsentdevice,
66 		"Option to enable PLOGI to devices that are not present after "
67 		"a Fabric scan.  This is needed for several broken switches. "
68 		"Default is 0 - no PLOGI. 1 - perfom PLOGI.");
69 
70 int ql2xloginretrycount = 0;
71 module_param(ql2xloginretrycount, int, S_IRUGO);
72 MODULE_PARM_DESC(ql2xloginretrycount,
73 		"Specify an alternate value for the NVRAM login retry count.");
74 
75 int ql2xallocfwdump = 1;
76 module_param(ql2xallocfwdump, int, S_IRUGO);
77 MODULE_PARM_DESC(ql2xallocfwdump,
78 		"Option to enable allocation of memory for a firmware dump "
79 		"during HBA initialization.  Memory allocation requirements "
80 		"vary by ISP type.  Default is 1 - allocate memory.");
81 
82 int ql2xextended_error_logging;
83 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
84 module_param_named(logging, ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
85 MODULE_PARM_DESC(ql2xextended_error_logging,
86 		"Option to enable extended error logging,\n"
87 		"\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
88 		"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
89 		"\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
90 		"\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
91 		"\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
92 		"\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
93 		"\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
94 		"\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
95 		"\t\t0x00008000 - Verbose.       0x00004000 - Target.\n"
96 		"\t\t0x00002000 - Target Mgmt.   0x00001000 - Target TMF.\n"
97 		"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
98 		"\t\t0x1e400000 - Preferred value for capturing essential "
99 		"debug information (equivalent to old "
100 		"ql2xextended_error_logging=1).\n"
101 		"\t\tDo LOGICAL OR of the value to enable more than one level");
102 
103 int ql2xshiftctondsd = 6;
104 module_param(ql2xshiftctondsd, int, S_IRUGO);
105 MODULE_PARM_DESC(ql2xshiftctondsd,
106 		"Set to control shifting of command type processing "
107 		"based on total number of SG elements.");
108 
109 int ql2xfdmienable=1;
110 module_param(ql2xfdmienable, int, S_IRUGO|S_IWUSR);
111 module_param_named(fdmi, ql2xfdmienable, int, S_IRUGO|S_IWUSR);
112 MODULE_PARM_DESC(ql2xfdmienable,
113 		"Enables FDMI registrations. "
114 		"0 - no FDMI. Default is 1 - perform FDMI.");
115 
116 #define MAX_Q_DEPTH	32
117 static int ql2xmaxqdepth = MAX_Q_DEPTH;
118 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
119 MODULE_PARM_DESC(ql2xmaxqdepth,
120 		"Maximum queue depth to set for each LUN. "
121 		"Default is 32.");
122 
123 int ql2xenabledif = 2;
124 module_param(ql2xenabledif, int, S_IRUGO);
125 MODULE_PARM_DESC(ql2xenabledif,
126 		" Enable T10-CRC-DIF:\n"
127 		" Default is 2.\n"
128 		"  0 -- No DIF Support\n"
129 		"  1 -- Enable DIF for all types\n"
130 		"  2 -- Enable DIF for all types, except Type 0.\n");
131 
132 int ql2xenablehba_err_chk = 2;
133 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
134 MODULE_PARM_DESC(ql2xenablehba_err_chk,
135 		" Enable T10-CRC-DIF Error isolation by HBA:\n"
136 		" Default is 2.\n"
137 		"  0 -- Error isolation disabled\n"
138 		"  1 -- Error isolation enabled only for DIX Type 0\n"
139 		"  2 -- Error isolation enabled for all Types\n");
140 
141 int ql2xiidmaenable=1;
142 module_param(ql2xiidmaenable, int, S_IRUGO);
143 MODULE_PARM_DESC(ql2xiidmaenable,
144 		"Enables iIDMA settings "
145 		"Default is 1 - perform iIDMA. 0 - no iIDMA.");
146 
147 int ql2xmqsupport = 1;
148 module_param(ql2xmqsupport, int, S_IRUGO);
149 MODULE_PARM_DESC(ql2xmqsupport,
150 		"Enable on demand multiple queue pairs support "
151 		"Default is 1 for supported. "
152 		"Set it to 0 to turn off mq qpair support.");
153 
154 int ql2xfwloadbin;
155 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
156 module_param_named(fwload, ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
157 MODULE_PARM_DESC(ql2xfwloadbin,
158 		"Option to specify location from which to load ISP firmware:.\n"
159 		" 2 -- load firmware via the request_firmware() (hotplug).\n"
160 		"      interface.\n"
161 		" 1 -- load firmware from flash.\n"
162 		" 0 -- use default semantics.\n");
163 
164 int ql2xetsenable;
165 module_param(ql2xetsenable, int, S_IRUGO);
166 MODULE_PARM_DESC(ql2xetsenable,
167 		"Enables firmware ETS burst."
168 		"Default is 0 - skip ETS enablement.");
169 
170 int ql2xdbwr = 1;
171 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
172 MODULE_PARM_DESC(ql2xdbwr,
173 		"Option to specify scheme for request queue posting.\n"
174 		" 0 -- Regular doorbell.\n"
175 		" 1 -- CAMRAM doorbell (faster).\n");
176 
177 int ql2xtargetreset = 1;
178 module_param(ql2xtargetreset, int, S_IRUGO);
179 MODULE_PARM_DESC(ql2xtargetreset,
180 		 "Enable target reset."
181 		 "Default is 1 - use hw defaults.");
182 
183 int ql2xgffidenable;
184 module_param(ql2xgffidenable, int, S_IRUGO);
185 MODULE_PARM_DESC(ql2xgffidenable,
186 		"Enables GFF_ID checks of port type. "
187 		"Default is 0 - Do not use GFF_ID information.");
188 
189 int ql2xasynctmfenable;
190 module_param(ql2xasynctmfenable, int, S_IRUGO);
191 MODULE_PARM_DESC(ql2xasynctmfenable,
192 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
193 		"Default is 0 - Issue TM IOCBs via mailbox mechanism.");
194 
195 int ql2xdontresethba;
196 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
197 MODULE_PARM_DESC(ql2xdontresethba,
198 		"Option to specify reset behaviour.\n"
199 		" 0 (Default) -- Reset on failure.\n"
200 		" 1 -- Do not reset on failure.\n");
201 
202 uint64_t ql2xmaxlun = MAX_LUNS;
203 module_param(ql2xmaxlun, ullong, S_IRUGO);
204 MODULE_PARM_DESC(ql2xmaxlun,
205 		"Defines the maximum LU number to register with the SCSI "
206 		"midlayer. Default is 65535.");
207 
208 int ql2xmdcapmask = 0x1F;
209 module_param(ql2xmdcapmask, int, S_IRUGO);
210 MODULE_PARM_DESC(ql2xmdcapmask,
211 		"Set the Minidump driver capture mask level. "
212 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
213 
214 int ql2xmdenable = 1;
215 module_param(ql2xmdenable, int, S_IRUGO);
216 MODULE_PARM_DESC(ql2xmdenable,
217 		"Enable/disable MiniDump. "
218 		"0 - MiniDump disabled. "
219 		"1 (Default) - MiniDump enabled.");
220 
221 int ql2xexlogins = 0;
222 module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
223 MODULE_PARM_DESC(ql2xexlogins,
224 		 "Number of extended Logins. "
225 		 "0 (Default)- Disabled.");
226 
227 int ql2xexchoffld = 0;
228 module_param(ql2xexchoffld, uint, S_IRUGO|S_IWUSR);
229 MODULE_PARM_DESC(ql2xexchoffld,
230 		 "Number of exchanges to offload. "
231 		 "0 (Default)- Disabled.");
232 
233 int ql2xfwholdabts = 0;
234 module_param(ql2xfwholdabts, int, S_IRUGO);
235 MODULE_PARM_DESC(ql2xfwholdabts,
236 		"Allow FW to hold status IOCB until ABTS rsp received. "
237 		"0 (Default) Do not set fw option. "
238 		"1 - Set fw option to hold ABTS.");
239 
240 int ql2xmvasynctoatio = 1;
241 module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
242 MODULE_PARM_DESC(ql2xmvasynctoatio,
243 		"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
244 		"0 (Default). Do not move IOCBs"
245 		"1 - Move IOCBs.");
246 
247 /*
248  * SCSI host template entry points
249  */
250 static int qla2xxx_slave_configure(struct scsi_device * device);
251 static int qla2xxx_slave_alloc(struct scsi_device *);
252 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
253 static void qla2xxx_scan_start(struct Scsi_Host *);
254 static void qla2xxx_slave_destroy(struct scsi_device *);
255 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
256 static int qla2xxx_eh_abort(struct scsi_cmnd *);
257 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
258 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
259 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
260 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
261 
262 static void qla2x00_clear_drv_active(struct qla_hw_data *);
263 static void qla2x00_free_device(scsi_qla_host_t *);
264 static void qla83xx_disable_laser(scsi_qla_host_t *vha);
265 static int qla2xxx_map_queues(struct Scsi_Host *shost);
266 
267 struct scsi_host_template qla2xxx_driver_template = {
268 	.module			= THIS_MODULE,
269 	.name			= QLA2XXX_DRIVER_NAME,
270 	.queuecommand		= qla2xxx_queuecommand,
271 
272 	.eh_timed_out		= fc_eh_timed_out,
273 	.eh_abort_handler	= qla2xxx_eh_abort,
274 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
275 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
276 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
277 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
278 
279 	.slave_configure	= qla2xxx_slave_configure,
280 
281 	.slave_alloc		= qla2xxx_slave_alloc,
282 	.slave_destroy		= qla2xxx_slave_destroy,
283 	.scan_finished		= qla2xxx_scan_finished,
284 	.scan_start		= qla2xxx_scan_start,
285 	.change_queue_depth	= scsi_change_queue_depth,
286 	.map_queues             = qla2xxx_map_queues,
287 	.this_id		= -1,
288 	.cmd_per_lun		= 3,
289 	.use_clustering		= ENABLE_CLUSTERING,
290 	.sg_tablesize		= SG_ALL,
291 
292 	.max_sectors		= 0xFFFF,
293 	.shost_attrs		= qla2x00_host_attrs,
294 
295 	.supported_mode		= MODE_INITIATOR,
296 	.track_queue_depth	= 1,
297 };
298 
299 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
300 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
301 
302 /* TODO Convert to inlines
303  *
304  * Timer routines
305  */
306 
307 __inline__ void
308 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
309 {
310 	init_timer(&vha->timer);
311 	vha->timer.expires = jiffies + interval * HZ;
312 	vha->timer.data = (unsigned long)vha;
313 	vha->timer.function = (void (*)(unsigned long))func;
314 	add_timer(&vha->timer);
315 	vha->timer_active = 1;
316 }
317 
318 static inline void
319 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
320 {
321 	/* Currently used for 82XX only. */
322 	if (vha->device_flags & DFLG_DEV_FAILED) {
323 		ql_dbg(ql_dbg_timer, vha, 0x600d,
324 		    "Device in a failed state, returning.\n");
325 		return;
326 	}
327 
328 	mod_timer(&vha->timer, jiffies + interval * HZ);
329 }
330 
331 static __inline__ void
332 qla2x00_stop_timer(scsi_qla_host_t *vha)
333 {
334 	del_timer_sync(&vha->timer);
335 	vha->timer_active = 0;
336 }
337 
338 static int qla2x00_do_dpc(void *data);
339 
340 static void qla2x00_rst_aen(scsi_qla_host_t *);
341 
342 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
343 	struct req_que **, struct rsp_que **);
344 static void qla2x00_free_fw_dump(struct qla_hw_data *);
345 static void qla2x00_mem_free(struct qla_hw_data *);
346 int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
347 	struct qla_qpair *qpair);
348 
349 /* -------------------------------------------------------------------------- */
350 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
351 				struct rsp_que *rsp)
352 {
353 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
354 	ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
355 				GFP_KERNEL);
356 	if (!ha->req_q_map) {
357 		ql_log(ql_log_fatal, vha, 0x003b,
358 		    "Unable to allocate memory for request queue ptrs.\n");
359 		goto fail_req_map;
360 	}
361 
362 	ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
363 				GFP_KERNEL);
364 	if (!ha->rsp_q_map) {
365 		ql_log(ql_log_fatal, vha, 0x003c,
366 		    "Unable to allocate memory for response queue ptrs.\n");
367 		goto fail_rsp_map;
368 	}
369 
370 	if (ql2xmqsupport && ha->max_qpairs) {
371 		ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
372 			GFP_KERNEL);
373 		if (!ha->queue_pair_map) {
374 			ql_log(ql_log_fatal, vha, 0x0180,
375 			    "Unable to allocate memory for queue pair ptrs.\n");
376 			goto fail_qpair_map;
377 		}
378 		ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
379 		if (ha->base_qpair == NULL) {
380 			ql_log(ql_log_warn, vha, 0x0182,
381 			    "Failed to allocate base queue pair memory.\n");
382 			goto fail_base_qpair;
383 		}
384 		ha->base_qpair->req = req;
385 		ha->base_qpair->rsp = rsp;
386 	}
387 
388 	/*
389 	 * Make sure we record at least the request and response queue zero in
390 	 * case we need to free them if part of the probe fails.
391 	 */
392 	ha->rsp_q_map[0] = rsp;
393 	ha->req_q_map[0] = req;
394 	set_bit(0, ha->rsp_qid_map);
395 	set_bit(0, ha->req_qid_map);
396 	return 1;
397 
398 fail_base_qpair:
399 	kfree(ha->queue_pair_map);
400 fail_qpair_map:
401 	kfree(ha->rsp_q_map);
402 	ha->rsp_q_map = NULL;
403 fail_rsp_map:
404 	kfree(ha->req_q_map);
405 	ha->req_q_map = NULL;
406 fail_req_map:
407 	return -ENOMEM;
408 }
409 
410 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
411 {
412 	if (IS_QLAFX00(ha)) {
413 		if (req && req->ring_fx00)
414 			dma_free_coherent(&ha->pdev->dev,
415 			    (req->length_fx00 + 1) * sizeof(request_t),
416 			    req->ring_fx00, req->dma_fx00);
417 	} else if (req && req->ring)
418 		dma_free_coherent(&ha->pdev->dev,
419 		(req->length + 1) * sizeof(request_t),
420 		req->ring, req->dma);
421 
422 	if (req)
423 		kfree(req->outstanding_cmds);
424 
425 	kfree(req);
426 	req = NULL;
427 }
428 
429 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
430 {
431 	if (IS_QLAFX00(ha)) {
432 		if (rsp && rsp->ring)
433 			dma_free_coherent(&ha->pdev->dev,
434 			    (rsp->length_fx00 + 1) * sizeof(request_t),
435 			    rsp->ring_fx00, rsp->dma_fx00);
436 	} else if (rsp && rsp->ring) {
437 		dma_free_coherent(&ha->pdev->dev,
438 		(rsp->length + 1) * sizeof(response_t),
439 		rsp->ring, rsp->dma);
440 	}
441 	kfree(rsp);
442 	rsp = NULL;
443 }
444 
445 static void qla2x00_free_queues(struct qla_hw_data *ha)
446 {
447 	struct req_que *req;
448 	struct rsp_que *rsp;
449 	int cnt;
450 	unsigned long flags;
451 
452 	spin_lock_irqsave(&ha->hardware_lock, flags);
453 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
454 		if (!test_bit(cnt, ha->req_qid_map))
455 			continue;
456 
457 		req = ha->req_q_map[cnt];
458 		clear_bit(cnt, ha->req_qid_map);
459 		ha->req_q_map[cnt] = NULL;
460 
461 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
462 		qla2x00_free_req_que(ha, req);
463 		spin_lock_irqsave(&ha->hardware_lock, flags);
464 	}
465 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
466 
467 	kfree(ha->req_q_map);
468 	ha->req_q_map = NULL;
469 
470 
471 	spin_lock_irqsave(&ha->hardware_lock, flags);
472 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
473 		if (!test_bit(cnt, ha->rsp_qid_map))
474 			continue;
475 
476 		rsp = ha->rsp_q_map[cnt];
477 		clear_bit(cnt, ha->rsp_qid_map);
478 		ha->rsp_q_map[cnt] =  NULL;
479 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
480 		qla2x00_free_rsp_que(ha, rsp);
481 		spin_lock_irqsave(&ha->hardware_lock, flags);
482 	}
483 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
484 
485 	kfree(ha->rsp_q_map);
486 	ha->rsp_q_map = NULL;
487 }
488 
489 static char *
490 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
491 {
492 	struct qla_hw_data *ha = vha->hw;
493 	static char *pci_bus_modes[] = {
494 		"33", "66", "100", "133",
495 	};
496 	uint16_t pci_bus;
497 
498 	strcpy(str, "PCI");
499 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
500 	if (pci_bus) {
501 		strcat(str, "-X (");
502 		strcat(str, pci_bus_modes[pci_bus]);
503 	} else {
504 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
505 		strcat(str, " (");
506 		strcat(str, pci_bus_modes[pci_bus]);
507 	}
508 	strcat(str, " MHz)");
509 
510 	return (str);
511 }
512 
513 static char *
514 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
515 {
516 	static char *pci_bus_modes[] = { "33", "66", "100", "133", };
517 	struct qla_hw_data *ha = vha->hw;
518 	uint32_t pci_bus;
519 
520 	if (pci_is_pcie(ha->pdev)) {
521 		char lwstr[6];
522 		uint32_t lstat, lspeed, lwidth;
523 
524 		pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
525 		lspeed = lstat & PCI_EXP_LNKCAP_SLS;
526 		lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
527 
528 		strcpy(str, "PCIe (");
529 		switch (lspeed) {
530 		case 1:
531 			strcat(str, "2.5GT/s ");
532 			break;
533 		case 2:
534 			strcat(str, "5.0GT/s ");
535 			break;
536 		case 3:
537 			strcat(str, "8.0GT/s ");
538 			break;
539 		default:
540 			strcat(str, "<unknown> ");
541 			break;
542 		}
543 		snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
544 		strcat(str, lwstr);
545 
546 		return str;
547 	}
548 
549 	strcpy(str, "PCI");
550 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
551 	if (pci_bus == 0 || pci_bus == 8) {
552 		strcat(str, " (");
553 		strcat(str, pci_bus_modes[pci_bus >> 3]);
554 	} else {
555 		strcat(str, "-X ");
556 		if (pci_bus & BIT_2)
557 			strcat(str, "Mode 2");
558 		else
559 			strcat(str, "Mode 1");
560 		strcat(str, " (");
561 		strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
562 	}
563 	strcat(str, " MHz)");
564 
565 	return str;
566 }
567 
568 static char *
569 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
570 {
571 	char un_str[10];
572 	struct qla_hw_data *ha = vha->hw;
573 
574 	snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
575 	    ha->fw_minor_version, ha->fw_subminor_version);
576 
577 	if (ha->fw_attributes & BIT_9) {
578 		strcat(str, "FLX");
579 		return (str);
580 	}
581 
582 	switch (ha->fw_attributes & 0xFF) {
583 	case 0x7:
584 		strcat(str, "EF");
585 		break;
586 	case 0x17:
587 		strcat(str, "TP");
588 		break;
589 	case 0x37:
590 		strcat(str, "IP");
591 		break;
592 	case 0x77:
593 		strcat(str, "VI");
594 		break;
595 	default:
596 		sprintf(un_str, "(%x)", ha->fw_attributes);
597 		strcat(str, un_str);
598 		break;
599 	}
600 	if (ha->fw_attributes & 0x100)
601 		strcat(str, "X");
602 
603 	return (str);
604 }
605 
606 static char *
607 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
608 {
609 	struct qla_hw_data *ha = vha->hw;
610 
611 	snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
612 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
613 	return str;
614 }
615 
616 void
617 qla2x00_sp_free_dma(void *ptr)
618 {
619 	srb_t *sp = ptr;
620 	struct qla_hw_data *ha = sp->vha->hw;
621 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
622 	void *ctx = GET_CMD_CTX_SP(sp);
623 
624 	if (sp->flags & SRB_DMA_VALID) {
625 		scsi_dma_unmap(cmd);
626 		sp->flags &= ~SRB_DMA_VALID;
627 	}
628 
629 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
630 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
631 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
632 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
633 	}
634 
635 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
636 		/* List assured to be having elements */
637 		qla2x00_clean_dsd_pool(ha, sp, NULL);
638 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
639 	}
640 
641 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
642 		dma_pool_free(ha->dl_dma_pool, ctx,
643 		    ((struct crc_context *)ctx)->crc_ctx_dma);
644 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
645 	}
646 
647 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
648 		struct ct6_dsd *ctx1 = (struct ct6_dsd *)ctx;
649 
650 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
651 			ctx1->fcp_cmnd_dma);
652 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
653 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
654 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
655 		mempool_free(ctx1, ha->ctx_mempool);
656 		ctx1 = NULL;
657 	}
658 
659 	CMD_SP(cmd) = NULL;
660 	qla2x00_rel_sp(sp);
661 }
662 
663 void
664 qla2x00_sp_compl(void *ptr, int res)
665 {
666 	srb_t *sp = ptr;
667 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
668 
669 	cmd->result = res;
670 
671 	if (atomic_read(&sp->ref_count) == 0) {
672 		ql_dbg(ql_dbg_io, sp->vha, 0x3015,
673 		    "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
674 		    sp, GET_CMD_SP(sp));
675 		if (ql2xextended_error_logging & ql_dbg_io)
676 			WARN_ON(atomic_read(&sp->ref_count) == 0);
677 		return;
678 	}
679 	if (!atomic_dec_and_test(&sp->ref_count))
680 		return;
681 
682 	qla2x00_sp_free_dma(sp);
683 	cmd->scsi_done(cmd);
684 }
685 
686 void
687 qla2xxx_qpair_sp_free_dma(void *ptr)
688 {
689 	srb_t *sp = (srb_t *)ptr;
690 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
691 	struct qla_hw_data *ha = sp->fcport->vha->hw;
692 	void *ctx = GET_CMD_CTX_SP(sp);
693 
694 	if (sp->flags & SRB_DMA_VALID) {
695 		scsi_dma_unmap(cmd);
696 		sp->flags &= ~SRB_DMA_VALID;
697 	}
698 
699 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
700 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
701 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
702 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
703 	}
704 
705 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
706 		/* List assured to be having elements */
707 		qla2x00_clean_dsd_pool(ha, sp, NULL);
708 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
709 	}
710 
711 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
712 		dma_pool_free(ha->dl_dma_pool, ctx,
713 		    ((struct crc_context *)ctx)->crc_ctx_dma);
714 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
715 	}
716 
717 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
718 		struct ct6_dsd *ctx1 = (struct ct6_dsd *)ctx;
719 
720 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
721 		    ctx1->fcp_cmnd_dma);
722 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
723 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
724 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
725 		mempool_free(ctx1, ha->ctx_mempool);
726 	}
727 
728 	CMD_SP(cmd) = NULL;
729 	qla2xxx_rel_qpair_sp(sp->qpair, sp);
730 }
731 
732 void
733 qla2xxx_qpair_sp_compl(void *ptr, int res)
734 {
735 	srb_t *sp = ptr;
736 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
737 
738 	cmd->result = res;
739 
740 	if (atomic_read(&sp->ref_count) == 0) {
741 		ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3079,
742 		    "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
743 		    sp, GET_CMD_SP(sp));
744 		if (ql2xextended_error_logging & ql_dbg_io)
745 			WARN_ON(atomic_read(&sp->ref_count) == 0);
746 		return;
747 	}
748 	if (!atomic_dec_and_test(&sp->ref_count))
749 		return;
750 
751 	qla2xxx_qpair_sp_free_dma(sp);
752 	cmd->scsi_done(cmd);
753 }
754 
755 /* If we are SP1 here, we need to still take and release the host_lock as SP1
756  * does not have the changes necessary to avoid taking host->host_lock.
757  */
758 static int
759 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
760 {
761 	scsi_qla_host_t *vha = shost_priv(host);
762 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
763 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
764 	struct qla_hw_data *ha = vha->hw;
765 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
766 	srb_t *sp;
767 	int rval;
768 	struct qla_qpair *qpair = NULL;
769 	uint32_t tag;
770 	uint16_t hwq;
771 
772 	if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags))) {
773 		cmd->result = DID_NO_CONNECT << 16;
774 		goto qc24_fail_command;
775 	}
776 
777 	if (ha->mqenable) {
778 		if (shost_use_blk_mq(vha->host)) {
779 			tag = blk_mq_unique_tag(cmd->request);
780 			hwq = blk_mq_unique_tag_to_hwq(tag);
781 			qpair = ha->queue_pair_map[hwq];
782 		} else if (vha->vp_idx && vha->qpair) {
783 			qpair = vha->qpair;
784 		}
785 
786 		if (qpair)
787 			return qla2xxx_mqueuecommand(host, cmd, qpair);
788 	}
789 
790 	if (ha->flags.eeh_busy) {
791 		if (ha->flags.pci_channel_io_perm_failure) {
792 			ql_dbg(ql_dbg_aer, vha, 0x9010,
793 			    "PCI Channel IO permanent failure, exiting "
794 			    "cmd=%p.\n", cmd);
795 			cmd->result = DID_NO_CONNECT << 16;
796 		} else {
797 			ql_dbg(ql_dbg_aer, vha, 0x9011,
798 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
799 			cmd->result = DID_REQUEUE << 16;
800 		}
801 		goto qc24_fail_command;
802 	}
803 
804 	rval = fc_remote_port_chkready(rport);
805 	if (rval) {
806 		cmd->result = rval;
807 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
808 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
809 		    cmd, rval);
810 		goto qc24_fail_command;
811 	}
812 
813 	if (!vha->flags.difdix_supported &&
814 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
815 			ql_dbg(ql_dbg_io, vha, 0x3004,
816 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
817 			    cmd);
818 			cmd->result = DID_NO_CONNECT << 16;
819 			goto qc24_fail_command;
820 	}
821 
822 	if (!fcport) {
823 		cmd->result = DID_NO_CONNECT << 16;
824 		goto qc24_fail_command;
825 	}
826 
827 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
828 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
829 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
830 			ql_dbg(ql_dbg_io, vha, 0x3005,
831 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
832 			    atomic_read(&fcport->state),
833 			    atomic_read(&base_vha->loop_state));
834 			cmd->result = DID_NO_CONNECT << 16;
835 			goto qc24_fail_command;
836 		}
837 		goto qc24_target_busy;
838 	}
839 
840 	/*
841 	 * Return target busy if we've received a non-zero retry_delay_timer
842 	 * in a FCP_RSP.
843 	 */
844 	if (fcport->retry_delay_timestamp == 0) {
845 		/* retry delay not set */
846 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
847 		fcport->retry_delay_timestamp = 0;
848 	else
849 		goto qc24_target_busy;
850 
851 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
852 	if (!sp)
853 		goto qc24_host_busy;
854 
855 	sp->u.scmd.cmd = cmd;
856 	sp->type = SRB_SCSI_CMD;
857 	atomic_set(&sp->ref_count, 1);
858 	CMD_SP(cmd) = (void *)sp;
859 	sp->free = qla2x00_sp_free_dma;
860 	sp->done = qla2x00_sp_compl;
861 
862 	rval = ha->isp_ops->start_scsi(sp);
863 	if (rval != QLA_SUCCESS) {
864 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
865 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
866 		goto qc24_host_busy_free_sp;
867 	}
868 
869 	return 0;
870 
871 qc24_host_busy_free_sp:
872 	qla2x00_sp_free_dma(sp);
873 
874 qc24_host_busy:
875 	return SCSI_MLQUEUE_HOST_BUSY;
876 
877 qc24_target_busy:
878 	return SCSI_MLQUEUE_TARGET_BUSY;
879 
880 qc24_fail_command:
881 	cmd->scsi_done(cmd);
882 
883 	return 0;
884 }
885 
886 /* For MQ supported I/O */
887 int
888 qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
889     struct qla_qpair *qpair)
890 {
891 	scsi_qla_host_t *vha = shost_priv(host);
892 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
893 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
894 	struct qla_hw_data *ha = vha->hw;
895 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
896 	srb_t *sp;
897 	int rval;
898 
899 	rval = fc_remote_port_chkready(rport);
900 	if (rval) {
901 		cmd->result = rval;
902 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
903 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
904 		    cmd, rval);
905 		goto qc24_fail_command;
906 	}
907 
908 	if (!fcport) {
909 		cmd->result = DID_NO_CONNECT << 16;
910 		goto qc24_fail_command;
911 	}
912 
913 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
914 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
915 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
916 			ql_dbg(ql_dbg_io, vha, 0x3077,
917 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
918 			    atomic_read(&fcport->state),
919 			    atomic_read(&base_vha->loop_state));
920 			cmd->result = DID_NO_CONNECT << 16;
921 			goto qc24_fail_command;
922 		}
923 		goto qc24_target_busy;
924 	}
925 
926 	/*
927 	 * Return target busy if we've received a non-zero retry_delay_timer
928 	 * in a FCP_RSP.
929 	 */
930 	if (fcport->retry_delay_timestamp == 0) {
931 		/* retry delay not set */
932 	} else if (time_after(jiffies, fcport->retry_delay_timestamp))
933 		fcport->retry_delay_timestamp = 0;
934 	else
935 		goto qc24_target_busy;
936 
937 	sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
938 	if (!sp)
939 		goto qc24_host_busy;
940 
941 	sp->u.scmd.cmd = cmd;
942 	sp->type = SRB_SCSI_CMD;
943 	atomic_set(&sp->ref_count, 1);
944 	CMD_SP(cmd) = (void *)sp;
945 	sp->free = qla2xxx_qpair_sp_free_dma;
946 	sp->done = qla2xxx_qpair_sp_compl;
947 	sp->qpair = qpair;
948 
949 	rval = ha->isp_ops->start_scsi_mq(sp);
950 	if (rval != QLA_SUCCESS) {
951 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
952 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
953 		if (rval == QLA_INTERFACE_ERROR)
954 			goto qc24_fail_command;
955 		goto qc24_host_busy_free_sp;
956 	}
957 
958 	return 0;
959 
960 qc24_host_busy_free_sp:
961 	qla2xxx_qpair_sp_free_dma(sp);
962 
963 qc24_host_busy:
964 	return SCSI_MLQUEUE_HOST_BUSY;
965 
966 qc24_target_busy:
967 	return SCSI_MLQUEUE_TARGET_BUSY;
968 
969 qc24_fail_command:
970 	cmd->scsi_done(cmd);
971 
972 	return 0;
973 }
974 
975 /*
976  * qla2x00_eh_wait_on_command
977  *    Waits for the command to be returned by the Firmware for some
978  *    max time.
979  *
980  * Input:
981  *    cmd = Scsi Command to wait on.
982  *
983  * Return:
984  *    Not Found : 0
985  *    Found : 1
986  */
987 static int
988 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
989 {
990 #define ABORT_POLLING_PERIOD	1000
991 #define ABORT_WAIT_ITER		((2 * 1000) / (ABORT_POLLING_PERIOD))
992 	unsigned long wait_iter = ABORT_WAIT_ITER;
993 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
994 	struct qla_hw_data *ha = vha->hw;
995 	int ret = QLA_SUCCESS;
996 
997 	if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
998 		ql_dbg(ql_dbg_taskm, vha, 0x8005,
999 		    "Return:eh_wait.\n");
1000 		return ret;
1001 	}
1002 
1003 	while (CMD_SP(cmd) && wait_iter--) {
1004 		msleep(ABORT_POLLING_PERIOD);
1005 	}
1006 	if (CMD_SP(cmd))
1007 		ret = QLA_FUNCTION_FAILED;
1008 
1009 	return ret;
1010 }
1011 
1012 /*
1013  * qla2x00_wait_for_hba_online
1014  *    Wait till the HBA is online after going through
1015  *    <= MAX_RETRIES_OF_ISP_ABORT  or
1016  *    finally HBA is disabled ie marked offline
1017  *
1018  * Input:
1019  *     ha - pointer to host adapter structure
1020  *
1021  * Note:
1022  *    Does context switching-Release SPIN_LOCK
1023  *    (if any) before calling this routine.
1024  *
1025  * Return:
1026  *    Success (Adapter is online) : 0
1027  *    Failed  (Adapter is offline/disabled) : 1
1028  */
1029 int
1030 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
1031 {
1032 	int		return_status;
1033 	unsigned long	wait_online;
1034 	struct qla_hw_data *ha = vha->hw;
1035 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1036 
1037 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1038 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1039 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1040 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1041 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
1042 
1043 		msleep(1000);
1044 	}
1045 	if (base_vha->flags.online)
1046 		return_status = QLA_SUCCESS;
1047 	else
1048 		return_status = QLA_FUNCTION_FAILED;
1049 
1050 	return (return_status);
1051 }
1052 
1053 static inline int test_fcport_count(scsi_qla_host_t *vha)
1054 {
1055 	struct qla_hw_data *ha = vha->hw;
1056 	unsigned long flags;
1057 	int res;
1058 
1059 	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1060 	ql_dbg(ql_dbg_init, vha, 0xffff,
1061 		"tgt %p, fcport_count=%d\n",
1062 		vha, vha->fcport_count);
1063 	res = (vha->fcport_count == 0);
1064 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1065 
1066 	return res;
1067 }
1068 
1069 /*
1070  * qla2x00_wait_for_sess_deletion can only be called from remove_one.
1071  * it has dependency on UNLOADING flag to stop device discovery
1072  */
1073 static void
1074 qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
1075 {
1076 	qla2x00_mark_all_devices_lost(vha, 0);
1077 
1078 	wait_event(vha->fcport_waitQ, test_fcport_count(vha));
1079 }
1080 
1081 /*
1082  * qla2x00_wait_for_hba_ready
1083  * Wait till the HBA is ready before doing driver unload
1084  *
1085  * Input:
1086  *     ha - pointer to host adapter structure
1087  *
1088  * Note:
1089  *    Does context switching-Release SPIN_LOCK
1090  *    (if any) before calling this routine.
1091  *
1092  */
1093 static void
1094 qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha)
1095 {
1096 	struct qla_hw_data *ha = vha->hw;
1097 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1098 
1099 	while ((qla2x00_reset_active(vha) || ha->dpc_active ||
1100 		ha->flags.mbox_busy) ||
1101 	       test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags) ||
1102 	       test_bit(FX00_TARGET_SCAN, &vha->dpc_flags)) {
1103 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
1104 			break;
1105 		msleep(1000);
1106 	}
1107 }
1108 
1109 int
1110 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
1111 {
1112 	int		return_status;
1113 	unsigned long	wait_reset;
1114 	struct qla_hw_data *ha = vha->hw;
1115 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1116 
1117 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1118 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
1119 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
1120 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
1121 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
1122 
1123 		msleep(1000);
1124 
1125 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
1126 		    ha->flags.chip_reset_done)
1127 			break;
1128 	}
1129 	if (ha->flags.chip_reset_done)
1130 		return_status = QLA_SUCCESS;
1131 	else
1132 		return_status = QLA_FUNCTION_FAILED;
1133 
1134 	return return_status;
1135 }
1136 
1137 static void
1138 sp_get(struct srb *sp)
1139 {
1140 	atomic_inc(&sp->ref_count);
1141 }
1142 
1143 #define ISP_REG_DISCONNECT 0xffffffffU
1144 /**************************************************************************
1145 * qla2x00_isp_reg_stat
1146 *
1147 * Description:
1148 *	Read the host status register of ISP before aborting the command.
1149 *
1150 * Input:
1151 *	ha = pointer to host adapter structure.
1152 *
1153 *
1154 * Returns:
1155 *	Either true or false.
1156 *
1157 * Note:	Return true if there is register disconnect.
1158 **************************************************************************/
1159 static inline
1160 uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
1161 {
1162 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1163 
1164 	return ((RD_REG_DWORD(&reg->host_status)) == ISP_REG_DISCONNECT);
1165 }
1166 
1167 /**************************************************************************
1168 * qla2xxx_eh_abort
1169 *
1170 * Description:
1171 *    The abort function will abort the specified command.
1172 *
1173 * Input:
1174 *    cmd = Linux SCSI command packet to be aborted.
1175 *
1176 * Returns:
1177 *    Either SUCCESS or FAILED.
1178 *
1179 * Note:
1180 *    Only return FAILED if command not returned by firmware.
1181 **************************************************************************/
1182 static int
1183 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
1184 {
1185 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1186 	srb_t *sp;
1187 	int ret;
1188 	unsigned int id;
1189 	uint64_t lun;
1190 	unsigned long flags;
1191 	int rval, wait = 0;
1192 	struct qla_hw_data *ha = vha->hw;
1193 
1194 	if (qla2x00_isp_reg_stat(ha)) {
1195 		ql_log(ql_log_info, vha, 0x8042,
1196 		    "PCI/Register disconnect, exiting.\n");
1197 		return FAILED;
1198 	}
1199 	if (!CMD_SP(cmd))
1200 		return SUCCESS;
1201 
1202 	ret = fc_block_scsi_eh(cmd);
1203 	if (ret != 0)
1204 		return ret;
1205 	ret = SUCCESS;
1206 
1207 	id = cmd->device->id;
1208 	lun = cmd->device->lun;
1209 
1210 	spin_lock_irqsave(&ha->hardware_lock, flags);
1211 	sp = (srb_t *) CMD_SP(cmd);
1212 	if (!sp) {
1213 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1214 		return SUCCESS;
1215 	}
1216 
1217 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
1218 	    "Aborting from RISC nexus=%ld:%d:%llu sp=%p cmd=%p handle=%x\n",
1219 	    vha->host_no, id, lun, sp, cmd, sp->handle);
1220 
1221 	/* Get a reference to the sp and drop the lock.*/
1222 	sp_get(sp);
1223 
1224 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1225 	rval = ha->isp_ops->abort_command(sp);
1226 	if (rval) {
1227 		if (rval == QLA_FUNCTION_PARAMETER_ERROR)
1228 			ret = SUCCESS;
1229 		else
1230 			ret = FAILED;
1231 
1232 		ql_dbg(ql_dbg_taskm, vha, 0x8003,
1233 		    "Abort command mbx failed cmd=%p, rval=%x.\n", cmd, rval);
1234 	} else {
1235 		ql_dbg(ql_dbg_taskm, vha, 0x8004,
1236 		    "Abort command mbx success cmd=%p.\n", cmd);
1237 		wait = 1;
1238 	}
1239 
1240 	spin_lock_irqsave(&ha->hardware_lock, flags);
1241 	sp->done(sp, 0);
1242 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1243 
1244 	/* Did the command return during mailbox execution? */
1245 	if (ret == FAILED && !CMD_SP(cmd))
1246 		ret = SUCCESS;
1247 
1248 	/* Wait for the command to be returned. */
1249 	if (wait) {
1250 		if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
1251 			ql_log(ql_log_warn, vha, 0x8006,
1252 			    "Abort handler timed out cmd=%p.\n", cmd);
1253 			ret = FAILED;
1254 		}
1255 	}
1256 
1257 	ql_log(ql_log_info, vha, 0x801c,
1258 	    "Abort command issued nexus=%ld:%d:%llu --  %d %x.\n",
1259 	    vha->host_no, id, lun, wait, ret);
1260 
1261 	return ret;
1262 }
1263 
1264 int
1265 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1266 	uint64_t l, enum nexus_wait_type type)
1267 {
1268 	int cnt, match, status;
1269 	unsigned long flags;
1270 	struct qla_hw_data *ha = vha->hw;
1271 	struct req_que *req;
1272 	srb_t *sp;
1273 	struct scsi_cmnd *cmd;
1274 
1275 	status = QLA_SUCCESS;
1276 
1277 	spin_lock_irqsave(&ha->hardware_lock, flags);
1278 	req = vha->req;
1279 	for (cnt = 1; status == QLA_SUCCESS &&
1280 		cnt < req->num_outstanding_cmds; cnt++) {
1281 		sp = req->outstanding_cmds[cnt];
1282 		if (!sp)
1283 			continue;
1284 		if (sp->type != SRB_SCSI_CMD)
1285 			continue;
1286 		if (vha->vp_idx != sp->vha->vp_idx)
1287 			continue;
1288 		match = 0;
1289 		cmd = GET_CMD_SP(sp);
1290 		switch (type) {
1291 		case WAIT_HOST:
1292 			match = 1;
1293 			break;
1294 		case WAIT_TARGET:
1295 			match = cmd->device->id == t;
1296 			break;
1297 		case WAIT_LUN:
1298 			match = (cmd->device->id == t &&
1299 				cmd->device->lun == l);
1300 			break;
1301 		}
1302 		if (!match)
1303 			continue;
1304 
1305 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1306 		status = qla2x00_eh_wait_on_command(cmd);
1307 		spin_lock_irqsave(&ha->hardware_lock, flags);
1308 	}
1309 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1310 
1311 	return status;
1312 }
1313 
1314 static char *reset_errors[] = {
1315 	"HBA not online",
1316 	"HBA not ready",
1317 	"Task management failed",
1318 	"Waiting for command completions",
1319 };
1320 
1321 static int
1322 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
1323     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, uint64_t, int))
1324 {
1325 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1326 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1327 	int err;
1328 
1329 	if (!fcport) {
1330 		return FAILED;
1331 	}
1332 
1333 	err = fc_block_scsi_eh(cmd);
1334 	if (err != 0)
1335 		return err;
1336 
1337 	ql_log(ql_log_info, vha, 0x8009,
1338 	    "%s RESET ISSUED nexus=%ld:%d:%llu cmd=%p.\n", name, vha->host_no,
1339 	    cmd->device->id, cmd->device->lun, cmd);
1340 
1341 	err = 0;
1342 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1343 		ql_log(ql_log_warn, vha, 0x800a,
1344 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1345 		goto eh_reset_failed;
1346 	}
1347 	err = 2;
1348 	if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1349 		!= QLA_SUCCESS) {
1350 		ql_log(ql_log_warn, vha, 0x800c,
1351 		    "do_reset failed for cmd=%p.\n", cmd);
1352 		goto eh_reset_failed;
1353 	}
1354 	err = 3;
1355 	if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1356 	    cmd->device->lun, type) != QLA_SUCCESS) {
1357 		ql_log(ql_log_warn, vha, 0x800d,
1358 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1359 		goto eh_reset_failed;
1360 	}
1361 
1362 	ql_log(ql_log_info, vha, 0x800e,
1363 	    "%s RESET SUCCEEDED nexus:%ld:%d:%llu cmd=%p.\n", name,
1364 	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1365 
1366 	return SUCCESS;
1367 
1368 eh_reset_failed:
1369 	ql_log(ql_log_info, vha, 0x800f,
1370 	    "%s RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n", name,
1371 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1372 	    cmd);
1373 	return FAILED;
1374 }
1375 
1376 static int
1377 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1378 {
1379 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1380 	struct qla_hw_data *ha = vha->hw;
1381 
1382 	if (qla2x00_isp_reg_stat(ha)) {
1383 		ql_log(ql_log_info, vha, 0x803e,
1384 		    "PCI/Register disconnect, exiting.\n");
1385 		return FAILED;
1386 	}
1387 
1388 	return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1389 	    ha->isp_ops->lun_reset);
1390 }
1391 
1392 static int
1393 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1394 {
1395 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1396 	struct qla_hw_data *ha = vha->hw;
1397 
1398 	if (qla2x00_isp_reg_stat(ha)) {
1399 		ql_log(ql_log_info, vha, 0x803f,
1400 		    "PCI/Register disconnect, exiting.\n");
1401 		return FAILED;
1402 	}
1403 
1404 	return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1405 	    ha->isp_ops->target_reset);
1406 }
1407 
1408 /**************************************************************************
1409 * qla2xxx_eh_bus_reset
1410 *
1411 * Description:
1412 *    The bus reset function will reset the bus and abort any executing
1413 *    commands.
1414 *
1415 * Input:
1416 *    cmd = Linux SCSI command packet of the command that cause the
1417 *          bus reset.
1418 *
1419 * Returns:
1420 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1421 *
1422 **************************************************************************/
1423 static int
1424 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1425 {
1426 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1427 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1428 	int ret = FAILED;
1429 	unsigned int id;
1430 	uint64_t lun;
1431 	struct qla_hw_data *ha = vha->hw;
1432 
1433 	if (qla2x00_isp_reg_stat(ha)) {
1434 		ql_log(ql_log_info, vha, 0x8040,
1435 		    "PCI/Register disconnect, exiting.\n");
1436 		return FAILED;
1437 	}
1438 
1439 	id = cmd->device->id;
1440 	lun = cmd->device->lun;
1441 
1442 	if (!fcport) {
1443 		return ret;
1444 	}
1445 
1446 	ret = fc_block_scsi_eh(cmd);
1447 	if (ret != 0)
1448 		return ret;
1449 	ret = FAILED;
1450 
1451 	ql_log(ql_log_info, vha, 0x8012,
1452 	    "BUS RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1453 
1454 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1455 		ql_log(ql_log_fatal, vha, 0x8013,
1456 		    "Wait for hba online failed board disabled.\n");
1457 		goto eh_bus_reset_done;
1458 	}
1459 
1460 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1461 		ret = SUCCESS;
1462 
1463 	if (ret == FAILED)
1464 		goto eh_bus_reset_done;
1465 
1466 	/* Flush outstanding commands. */
1467 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1468 	    QLA_SUCCESS) {
1469 		ql_log(ql_log_warn, vha, 0x8014,
1470 		    "Wait for pending commands failed.\n");
1471 		ret = FAILED;
1472 	}
1473 
1474 eh_bus_reset_done:
1475 	ql_log(ql_log_warn, vha, 0x802b,
1476 	    "BUS RESET %s nexus=%ld:%d:%llu.\n",
1477 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1478 
1479 	return ret;
1480 }
1481 
1482 /**************************************************************************
1483 * qla2xxx_eh_host_reset
1484 *
1485 * Description:
1486 *    The reset function will reset the Adapter.
1487 *
1488 * Input:
1489 *      cmd = Linux SCSI command packet of the command that cause the
1490 *            adapter reset.
1491 *
1492 * Returns:
1493 *      Either SUCCESS or FAILED.
1494 *
1495 * Note:
1496 **************************************************************************/
1497 static int
1498 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1499 {
1500 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1501 	struct qla_hw_data *ha = vha->hw;
1502 	int ret = FAILED;
1503 	unsigned int id;
1504 	uint64_t lun;
1505 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1506 
1507 	if (qla2x00_isp_reg_stat(ha)) {
1508 		ql_log(ql_log_info, vha, 0x8041,
1509 		    "PCI/Register disconnect, exiting.\n");
1510 		schedule_work(&ha->board_disable);
1511 		return SUCCESS;
1512 	}
1513 
1514 	id = cmd->device->id;
1515 	lun = cmd->device->lun;
1516 
1517 	ql_log(ql_log_info, vha, 0x8018,
1518 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%llu.\n", vha->host_no, id, lun);
1519 
1520 	/*
1521 	 * No point in issuing another reset if one is active.  Also do not
1522 	 * attempt a reset if we are updating flash.
1523 	 */
1524 	if (qla2x00_reset_active(vha) || ha->optrom_state != QLA_SWAITING)
1525 		goto eh_host_reset_lock;
1526 
1527 	if (vha != base_vha) {
1528 		if (qla2x00_vp_abort_isp(vha))
1529 			goto eh_host_reset_lock;
1530 	} else {
1531 		if (IS_P3P_TYPE(vha->hw)) {
1532 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1533 				/* Ctx reset success */
1534 				ret = SUCCESS;
1535 				goto eh_host_reset_lock;
1536 			}
1537 			/* fall thru if ctx reset failed */
1538 		}
1539 		if (ha->wq)
1540 			flush_workqueue(ha->wq);
1541 
1542 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1543 		if (ha->isp_ops->abort_isp(base_vha)) {
1544 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1545 			/* failed. schedule dpc to try */
1546 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1547 
1548 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1549 				ql_log(ql_log_warn, vha, 0x802a,
1550 				    "wait for hba online failed.\n");
1551 				goto eh_host_reset_lock;
1552 			}
1553 		}
1554 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1555 	}
1556 
1557 	/* Waiting for command to be returned to OS.*/
1558 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1559 		QLA_SUCCESS)
1560 		ret = SUCCESS;
1561 
1562 eh_host_reset_lock:
1563 	ql_log(ql_log_info, vha, 0x8017,
1564 	    "ADAPTER RESET %s nexus=%ld:%d:%llu.\n",
1565 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1566 
1567 	return ret;
1568 }
1569 
1570 /*
1571 * qla2x00_loop_reset
1572 *      Issue loop reset.
1573 *
1574 * Input:
1575 *      ha = adapter block pointer.
1576 *
1577 * Returns:
1578 *      0 = success
1579 */
1580 int
1581 qla2x00_loop_reset(scsi_qla_host_t *vha)
1582 {
1583 	int ret;
1584 	struct fc_port *fcport;
1585 	struct qla_hw_data *ha = vha->hw;
1586 
1587 	if (IS_QLAFX00(ha)) {
1588 		return qlafx00_loop_reset(vha);
1589 	}
1590 
1591 	if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1592 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1593 			if (fcport->port_type != FCT_TARGET)
1594 				continue;
1595 
1596 			ret = ha->isp_ops->target_reset(fcport, 0, 0);
1597 			if (ret != QLA_SUCCESS) {
1598 				ql_dbg(ql_dbg_taskm, vha, 0x802c,
1599 				    "Bus Reset failed: Reset=%d "
1600 				    "d_id=%x.\n", ret, fcport->d_id.b24);
1601 			}
1602 		}
1603 	}
1604 
1605 
1606 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1607 		atomic_set(&vha->loop_state, LOOP_DOWN);
1608 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1609 		qla2x00_mark_all_devices_lost(vha, 0);
1610 		ret = qla2x00_full_login_lip(vha);
1611 		if (ret != QLA_SUCCESS) {
1612 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1613 			    "full_login_lip=%d.\n", ret);
1614 		}
1615 	}
1616 
1617 	if (ha->flags.enable_lip_reset) {
1618 		ret = qla2x00_lip_reset(vha);
1619 		if (ret != QLA_SUCCESS)
1620 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1621 			    "lip_reset failed (%d).\n", ret);
1622 	}
1623 
1624 	/* Issue marker command only when we are going to start the I/O */
1625 	vha->marker_needed = 1;
1626 
1627 	return QLA_SUCCESS;
1628 }
1629 
1630 void
1631 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1632 {
1633 	int que, cnt;
1634 	unsigned long flags;
1635 	srb_t *sp;
1636 	struct qla_hw_data *ha = vha->hw;
1637 	struct req_que *req;
1638 
1639 	qlt_host_reset_handler(ha);
1640 
1641 	spin_lock_irqsave(&ha->hardware_lock, flags);
1642 	for (que = 0; que < ha->max_req_queues; que++) {
1643 		req = ha->req_q_map[que];
1644 		if (!req)
1645 			continue;
1646 		if (!req->outstanding_cmds)
1647 			continue;
1648 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1649 			sp = req->outstanding_cmds[cnt];
1650 			if (sp) {
1651 				/* Don't abort commands in adapter during EEH
1652 				 * recovery as it's not accessible/responding.
1653 				 */
1654 				if (GET_CMD_SP(sp) && !ha->flags.eeh_busy) {
1655 					/* Get a reference to the sp and drop the lock.
1656 					 * The reference ensures this sp->done() call
1657 					 * - and not the call in qla2xxx_eh_abort() -
1658 					 * ends the SCSI command (with result 'res').
1659 					 */
1660 					sp_get(sp);
1661 					spin_unlock_irqrestore(&ha->hardware_lock, flags);
1662 					qla2xxx_eh_abort(GET_CMD_SP(sp));
1663 					spin_lock_irqsave(&ha->hardware_lock, flags);
1664 				}
1665 				req->outstanding_cmds[cnt] = NULL;
1666 				sp->done(sp, res);
1667 			}
1668 		}
1669 	}
1670 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1671 }
1672 
1673 static int
1674 qla2xxx_slave_alloc(struct scsi_device *sdev)
1675 {
1676 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1677 
1678 	if (!rport || fc_remote_port_chkready(rport))
1679 		return -ENXIO;
1680 
1681 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1682 
1683 	return 0;
1684 }
1685 
1686 static int
1687 qla2xxx_slave_configure(struct scsi_device *sdev)
1688 {
1689 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1690 	struct req_que *req = vha->req;
1691 
1692 	if (IS_T10_PI_CAPABLE(vha->hw))
1693 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1694 
1695 	scsi_change_queue_depth(sdev, req->max_q_depth);
1696 	return 0;
1697 }
1698 
1699 static void
1700 qla2xxx_slave_destroy(struct scsi_device *sdev)
1701 {
1702 	sdev->hostdata = NULL;
1703 }
1704 
1705 /**
1706  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1707  * @ha: HA context
1708  *
1709  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1710  * supported addressing method.
1711  */
1712 static void
1713 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1714 {
1715 	/* Assume a 32bit DMA mask. */
1716 	ha->flags.enable_64bit_addressing = 0;
1717 
1718 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1719 		/* Any upper-dword bits set? */
1720 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1721 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1722 			/* Ok, a 64bit DMA mask is applicable. */
1723 			ha->flags.enable_64bit_addressing = 1;
1724 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1725 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1726 			return;
1727 		}
1728 	}
1729 
1730 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1731 	pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1732 }
1733 
1734 static void
1735 qla2x00_enable_intrs(struct qla_hw_data *ha)
1736 {
1737 	unsigned long flags = 0;
1738 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1739 
1740 	spin_lock_irqsave(&ha->hardware_lock, flags);
1741 	ha->interrupts_on = 1;
1742 	/* enable risc and host interrupts */
1743 	WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1744 	RD_REG_WORD(&reg->ictrl);
1745 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1746 
1747 }
1748 
1749 static void
1750 qla2x00_disable_intrs(struct qla_hw_data *ha)
1751 {
1752 	unsigned long flags = 0;
1753 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1754 
1755 	spin_lock_irqsave(&ha->hardware_lock, flags);
1756 	ha->interrupts_on = 0;
1757 	/* disable risc and host interrupts */
1758 	WRT_REG_WORD(&reg->ictrl, 0);
1759 	RD_REG_WORD(&reg->ictrl);
1760 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1761 }
1762 
1763 static void
1764 qla24xx_enable_intrs(struct qla_hw_data *ha)
1765 {
1766 	unsigned long flags = 0;
1767 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1768 
1769 	spin_lock_irqsave(&ha->hardware_lock, flags);
1770 	ha->interrupts_on = 1;
1771 	WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1772 	RD_REG_DWORD(&reg->ictrl);
1773 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1774 }
1775 
1776 static void
1777 qla24xx_disable_intrs(struct qla_hw_data *ha)
1778 {
1779 	unsigned long flags = 0;
1780 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1781 
1782 	if (IS_NOPOLLING_TYPE(ha))
1783 		return;
1784 	spin_lock_irqsave(&ha->hardware_lock, flags);
1785 	ha->interrupts_on = 0;
1786 	WRT_REG_DWORD(&reg->ictrl, 0);
1787 	RD_REG_DWORD(&reg->ictrl);
1788 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1789 }
1790 
1791 static int
1792 qla2x00_iospace_config(struct qla_hw_data *ha)
1793 {
1794 	resource_size_t pio;
1795 	uint16_t msix;
1796 
1797 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1798 	    QLA2XXX_DRIVER_NAME)) {
1799 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1800 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1801 		    pci_name(ha->pdev));
1802 		goto iospace_error_exit;
1803 	}
1804 	if (!(ha->bars & 1))
1805 		goto skip_pio;
1806 
1807 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
1808 	pio = pci_resource_start(ha->pdev, 0);
1809 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1810 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1811 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1812 			    "Invalid pci I/O region size (%s).\n",
1813 			    pci_name(ha->pdev));
1814 			pio = 0;
1815 		}
1816 	} else {
1817 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1818 		    "Region #0 no a PIO resource (%s).\n",
1819 		    pci_name(ha->pdev));
1820 		pio = 0;
1821 	}
1822 	ha->pio_address = pio;
1823 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1824 	    "PIO address=%llu.\n",
1825 	    (unsigned long long)ha->pio_address);
1826 
1827 skip_pio:
1828 	/* Use MMIO operations for all accesses. */
1829 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1830 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1831 		    "Region #1 not an MMIO resource (%s), aborting.\n",
1832 		    pci_name(ha->pdev));
1833 		goto iospace_error_exit;
1834 	}
1835 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1836 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1837 		    "Invalid PCI mem region size (%s), aborting.\n",
1838 		    pci_name(ha->pdev));
1839 		goto iospace_error_exit;
1840 	}
1841 
1842 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1843 	if (!ha->iobase) {
1844 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1845 		    "Cannot remap MMIO (%s), aborting.\n",
1846 		    pci_name(ha->pdev));
1847 		goto iospace_error_exit;
1848 	}
1849 
1850 	/* Determine queue resources */
1851 	ha->max_req_queues = ha->max_rsp_queues = 1;
1852 	ha->msix_count = QLA_BASE_VECTORS;
1853 	if (!ql2xmqsupport || (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1854 		goto mqiobase_exit;
1855 
1856 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1857 			pci_resource_len(ha->pdev, 3));
1858 	if (ha->mqiobase) {
1859 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1860 		    "MQIO Base=%p.\n", ha->mqiobase);
1861 		/* Read MSIX vector size of the board */
1862 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1863 		ha->msix_count = msix + 1;
1864 		/* Max queues are bounded by available msix vectors */
1865 		/* MB interrupt uses 1 vector */
1866 		ha->max_req_queues = ha->msix_count - 1;
1867 		ha->max_rsp_queues = ha->max_req_queues;
1868 		/* Queue pairs is the max value minus the base queue pair */
1869 		ha->max_qpairs = ha->max_rsp_queues - 1;
1870 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
1871 		    "Max no of queues pairs: %d.\n", ha->max_qpairs);
1872 
1873 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1874 		    "MSI-X vector count: %d.\n", ha->msix_count);
1875 	} else
1876 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1877 		    "BAR 3 not enabled.\n");
1878 
1879 mqiobase_exit:
1880 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1881 	    "MSIX Count: %d.\n", ha->msix_count);
1882 	return (0);
1883 
1884 iospace_error_exit:
1885 	return (-ENOMEM);
1886 }
1887 
1888 
1889 static int
1890 qla83xx_iospace_config(struct qla_hw_data *ha)
1891 {
1892 	uint16_t msix;
1893 
1894 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1895 	    QLA2XXX_DRIVER_NAME)) {
1896 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
1897 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1898 		    pci_name(ha->pdev));
1899 
1900 		goto iospace_error_exit;
1901 	}
1902 
1903 	/* Use MMIO operations for all accesses. */
1904 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1905 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
1906 		    "Invalid pci I/O region size (%s).\n",
1907 		    pci_name(ha->pdev));
1908 		goto iospace_error_exit;
1909 	}
1910 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1911 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
1912 		    "Invalid PCI mem region size (%s), aborting\n",
1913 			pci_name(ha->pdev));
1914 		goto iospace_error_exit;
1915 	}
1916 
1917 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
1918 	if (!ha->iobase) {
1919 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
1920 		    "Cannot remap MMIO (%s), aborting.\n",
1921 		    pci_name(ha->pdev));
1922 		goto iospace_error_exit;
1923 	}
1924 
1925 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
1926 	/* 83XX 26XX always use MQ type access for queues
1927 	 * - mbar 2, a.k.a region 4 */
1928 	ha->max_req_queues = ha->max_rsp_queues = 1;
1929 	ha->msix_count = QLA_BASE_VECTORS;
1930 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
1931 			pci_resource_len(ha->pdev, 4));
1932 
1933 	if (!ha->mqiobase) {
1934 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
1935 		    "BAR2/region4 not enabled\n");
1936 		goto mqiobase_exit;
1937 	}
1938 
1939 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
1940 			pci_resource_len(ha->pdev, 2));
1941 	if (ha->msixbase) {
1942 		/* Read MSIX vector size of the board */
1943 		pci_read_config_word(ha->pdev,
1944 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
1945 		ha->msix_count = msix + 1;
1946 		/*
1947 		 * By default, driver uses at least two msix vectors
1948 		 * (default & rspq)
1949 		 */
1950 		if (ql2xmqsupport) {
1951 			/* MB interrupt uses 1 vector */
1952 			ha->max_req_queues = ha->msix_count - 1;
1953 
1954 			/* ATIOQ needs 1 vector. That's 1 less QPair */
1955 			if (QLA_TGT_MODE_ENABLED())
1956 				ha->max_req_queues--;
1957 
1958 			ha->max_rsp_queues = ha->max_req_queues;
1959 
1960 			/* Queue pairs is the max value minus
1961 			 * the base queue pair */
1962 			ha->max_qpairs = ha->max_req_queues - 1;
1963 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
1964 			    "Max no of queues pairs: %d.\n", ha->max_qpairs);
1965 		}
1966 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
1967 		    "MSI-X vector count: %d.\n", ha->msix_count);
1968 	} else
1969 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
1970 		    "BAR 1 not enabled.\n");
1971 
1972 mqiobase_exit:
1973 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
1974 	    "MSIX Count: %d.\n", ha->msix_count);
1975 	return 0;
1976 
1977 iospace_error_exit:
1978 	return -ENOMEM;
1979 }
1980 
1981 static struct isp_operations qla2100_isp_ops = {
1982 	.pci_config		= qla2100_pci_config,
1983 	.reset_chip		= qla2x00_reset_chip,
1984 	.chip_diag		= qla2x00_chip_diag,
1985 	.config_rings		= qla2x00_config_rings,
1986 	.reset_adapter		= qla2x00_reset_adapter,
1987 	.nvram_config		= qla2x00_nvram_config,
1988 	.update_fw_options	= qla2x00_update_fw_options,
1989 	.load_risc		= qla2x00_load_risc,
1990 	.pci_info_str		= qla2x00_pci_info_str,
1991 	.fw_version_str		= qla2x00_fw_version_str,
1992 	.intr_handler		= qla2100_intr_handler,
1993 	.enable_intrs		= qla2x00_enable_intrs,
1994 	.disable_intrs		= qla2x00_disable_intrs,
1995 	.abort_command		= qla2x00_abort_command,
1996 	.target_reset		= qla2x00_abort_target,
1997 	.lun_reset		= qla2x00_lun_reset,
1998 	.fabric_login		= qla2x00_login_fabric,
1999 	.fabric_logout		= qla2x00_fabric_logout,
2000 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2001 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2002 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2003 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2004 	.read_nvram		= qla2x00_read_nvram_data,
2005 	.write_nvram		= qla2x00_write_nvram_data,
2006 	.fw_dump		= qla2100_fw_dump,
2007 	.beacon_on		= NULL,
2008 	.beacon_off		= NULL,
2009 	.beacon_blink		= NULL,
2010 	.read_optrom		= qla2x00_read_optrom_data,
2011 	.write_optrom		= qla2x00_write_optrom_data,
2012 	.get_flash_version	= qla2x00_get_flash_version,
2013 	.start_scsi		= qla2x00_start_scsi,
2014 	.start_scsi_mq          = NULL,
2015 	.abort_isp		= qla2x00_abort_isp,
2016 	.iospace_config     	= qla2x00_iospace_config,
2017 	.initialize_adapter	= qla2x00_initialize_adapter,
2018 };
2019 
2020 static struct isp_operations qla2300_isp_ops = {
2021 	.pci_config		= qla2300_pci_config,
2022 	.reset_chip		= qla2x00_reset_chip,
2023 	.chip_diag		= qla2x00_chip_diag,
2024 	.config_rings		= qla2x00_config_rings,
2025 	.reset_adapter		= qla2x00_reset_adapter,
2026 	.nvram_config		= qla2x00_nvram_config,
2027 	.update_fw_options	= qla2x00_update_fw_options,
2028 	.load_risc		= qla2x00_load_risc,
2029 	.pci_info_str		= qla2x00_pci_info_str,
2030 	.fw_version_str		= qla2x00_fw_version_str,
2031 	.intr_handler		= qla2300_intr_handler,
2032 	.enable_intrs		= qla2x00_enable_intrs,
2033 	.disable_intrs		= qla2x00_disable_intrs,
2034 	.abort_command		= qla2x00_abort_command,
2035 	.target_reset		= qla2x00_abort_target,
2036 	.lun_reset		= qla2x00_lun_reset,
2037 	.fabric_login		= qla2x00_login_fabric,
2038 	.fabric_logout		= qla2x00_fabric_logout,
2039 	.calc_req_entries	= qla2x00_calc_iocbs_32,
2040 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
2041 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
2042 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
2043 	.read_nvram		= qla2x00_read_nvram_data,
2044 	.write_nvram		= qla2x00_write_nvram_data,
2045 	.fw_dump		= qla2300_fw_dump,
2046 	.beacon_on		= qla2x00_beacon_on,
2047 	.beacon_off		= qla2x00_beacon_off,
2048 	.beacon_blink		= qla2x00_beacon_blink,
2049 	.read_optrom		= qla2x00_read_optrom_data,
2050 	.write_optrom		= qla2x00_write_optrom_data,
2051 	.get_flash_version	= qla2x00_get_flash_version,
2052 	.start_scsi		= qla2x00_start_scsi,
2053 	.start_scsi_mq          = NULL,
2054 	.abort_isp		= qla2x00_abort_isp,
2055 	.iospace_config		= qla2x00_iospace_config,
2056 	.initialize_adapter	= qla2x00_initialize_adapter,
2057 };
2058 
2059 static struct isp_operations qla24xx_isp_ops = {
2060 	.pci_config		= qla24xx_pci_config,
2061 	.reset_chip		= qla24xx_reset_chip,
2062 	.chip_diag		= qla24xx_chip_diag,
2063 	.config_rings		= qla24xx_config_rings,
2064 	.reset_adapter		= qla24xx_reset_adapter,
2065 	.nvram_config		= qla24xx_nvram_config,
2066 	.update_fw_options	= qla24xx_update_fw_options,
2067 	.load_risc		= qla24xx_load_risc,
2068 	.pci_info_str		= qla24xx_pci_info_str,
2069 	.fw_version_str		= qla24xx_fw_version_str,
2070 	.intr_handler		= qla24xx_intr_handler,
2071 	.enable_intrs		= qla24xx_enable_intrs,
2072 	.disable_intrs		= qla24xx_disable_intrs,
2073 	.abort_command		= qla24xx_abort_command,
2074 	.target_reset		= qla24xx_abort_target,
2075 	.lun_reset		= qla24xx_lun_reset,
2076 	.fabric_login		= qla24xx_login_fabric,
2077 	.fabric_logout		= qla24xx_fabric_logout,
2078 	.calc_req_entries	= NULL,
2079 	.build_iocbs		= NULL,
2080 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2081 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2082 	.read_nvram		= qla24xx_read_nvram_data,
2083 	.write_nvram		= qla24xx_write_nvram_data,
2084 	.fw_dump		= qla24xx_fw_dump,
2085 	.beacon_on		= qla24xx_beacon_on,
2086 	.beacon_off		= qla24xx_beacon_off,
2087 	.beacon_blink		= qla24xx_beacon_blink,
2088 	.read_optrom		= qla24xx_read_optrom_data,
2089 	.write_optrom		= qla24xx_write_optrom_data,
2090 	.get_flash_version	= qla24xx_get_flash_version,
2091 	.start_scsi		= qla24xx_start_scsi,
2092 	.start_scsi_mq          = NULL,
2093 	.abort_isp		= qla2x00_abort_isp,
2094 	.iospace_config		= qla2x00_iospace_config,
2095 	.initialize_adapter	= qla2x00_initialize_adapter,
2096 };
2097 
2098 static struct isp_operations qla25xx_isp_ops = {
2099 	.pci_config		= qla25xx_pci_config,
2100 	.reset_chip		= qla24xx_reset_chip,
2101 	.chip_diag		= qla24xx_chip_diag,
2102 	.config_rings		= qla24xx_config_rings,
2103 	.reset_adapter		= qla24xx_reset_adapter,
2104 	.nvram_config		= qla24xx_nvram_config,
2105 	.update_fw_options	= qla24xx_update_fw_options,
2106 	.load_risc		= qla24xx_load_risc,
2107 	.pci_info_str		= qla24xx_pci_info_str,
2108 	.fw_version_str		= qla24xx_fw_version_str,
2109 	.intr_handler		= qla24xx_intr_handler,
2110 	.enable_intrs		= qla24xx_enable_intrs,
2111 	.disable_intrs		= qla24xx_disable_intrs,
2112 	.abort_command		= qla24xx_abort_command,
2113 	.target_reset		= qla24xx_abort_target,
2114 	.lun_reset		= qla24xx_lun_reset,
2115 	.fabric_login		= qla24xx_login_fabric,
2116 	.fabric_logout		= qla24xx_fabric_logout,
2117 	.calc_req_entries	= NULL,
2118 	.build_iocbs		= NULL,
2119 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2120 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2121 	.read_nvram		= qla25xx_read_nvram_data,
2122 	.write_nvram		= qla25xx_write_nvram_data,
2123 	.fw_dump		= qla25xx_fw_dump,
2124 	.beacon_on		= qla24xx_beacon_on,
2125 	.beacon_off		= qla24xx_beacon_off,
2126 	.beacon_blink		= qla24xx_beacon_blink,
2127 	.read_optrom		= qla25xx_read_optrom_data,
2128 	.write_optrom		= qla24xx_write_optrom_data,
2129 	.get_flash_version	= qla24xx_get_flash_version,
2130 	.start_scsi		= qla24xx_dif_start_scsi,
2131 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2132 	.abort_isp		= qla2x00_abort_isp,
2133 	.iospace_config		= qla2x00_iospace_config,
2134 	.initialize_adapter	= qla2x00_initialize_adapter,
2135 };
2136 
2137 static struct isp_operations qla81xx_isp_ops = {
2138 	.pci_config		= qla25xx_pci_config,
2139 	.reset_chip		= qla24xx_reset_chip,
2140 	.chip_diag		= qla24xx_chip_diag,
2141 	.config_rings		= qla24xx_config_rings,
2142 	.reset_adapter		= qla24xx_reset_adapter,
2143 	.nvram_config		= qla81xx_nvram_config,
2144 	.update_fw_options	= qla81xx_update_fw_options,
2145 	.load_risc		= qla81xx_load_risc,
2146 	.pci_info_str		= qla24xx_pci_info_str,
2147 	.fw_version_str		= qla24xx_fw_version_str,
2148 	.intr_handler		= qla24xx_intr_handler,
2149 	.enable_intrs		= qla24xx_enable_intrs,
2150 	.disable_intrs		= qla24xx_disable_intrs,
2151 	.abort_command		= qla24xx_abort_command,
2152 	.target_reset		= qla24xx_abort_target,
2153 	.lun_reset		= qla24xx_lun_reset,
2154 	.fabric_login		= qla24xx_login_fabric,
2155 	.fabric_logout		= qla24xx_fabric_logout,
2156 	.calc_req_entries	= NULL,
2157 	.build_iocbs		= NULL,
2158 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2159 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2160 	.read_nvram		= NULL,
2161 	.write_nvram		= NULL,
2162 	.fw_dump		= qla81xx_fw_dump,
2163 	.beacon_on		= qla24xx_beacon_on,
2164 	.beacon_off		= qla24xx_beacon_off,
2165 	.beacon_blink		= qla83xx_beacon_blink,
2166 	.read_optrom		= qla25xx_read_optrom_data,
2167 	.write_optrom		= qla24xx_write_optrom_data,
2168 	.get_flash_version	= qla24xx_get_flash_version,
2169 	.start_scsi		= qla24xx_dif_start_scsi,
2170 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2171 	.abort_isp		= qla2x00_abort_isp,
2172 	.iospace_config		= qla2x00_iospace_config,
2173 	.initialize_adapter	= qla2x00_initialize_adapter,
2174 };
2175 
2176 static struct isp_operations qla82xx_isp_ops = {
2177 	.pci_config		= qla82xx_pci_config,
2178 	.reset_chip		= qla82xx_reset_chip,
2179 	.chip_diag		= qla24xx_chip_diag,
2180 	.config_rings		= qla82xx_config_rings,
2181 	.reset_adapter		= qla24xx_reset_adapter,
2182 	.nvram_config		= qla81xx_nvram_config,
2183 	.update_fw_options	= qla24xx_update_fw_options,
2184 	.load_risc		= qla82xx_load_risc,
2185 	.pci_info_str		= qla24xx_pci_info_str,
2186 	.fw_version_str		= qla24xx_fw_version_str,
2187 	.intr_handler		= qla82xx_intr_handler,
2188 	.enable_intrs		= qla82xx_enable_intrs,
2189 	.disable_intrs		= qla82xx_disable_intrs,
2190 	.abort_command		= qla24xx_abort_command,
2191 	.target_reset		= qla24xx_abort_target,
2192 	.lun_reset		= qla24xx_lun_reset,
2193 	.fabric_login		= qla24xx_login_fabric,
2194 	.fabric_logout		= qla24xx_fabric_logout,
2195 	.calc_req_entries	= NULL,
2196 	.build_iocbs		= NULL,
2197 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2198 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2199 	.read_nvram		= qla24xx_read_nvram_data,
2200 	.write_nvram		= qla24xx_write_nvram_data,
2201 	.fw_dump		= qla82xx_fw_dump,
2202 	.beacon_on		= qla82xx_beacon_on,
2203 	.beacon_off		= qla82xx_beacon_off,
2204 	.beacon_blink		= NULL,
2205 	.read_optrom		= qla82xx_read_optrom_data,
2206 	.write_optrom		= qla82xx_write_optrom_data,
2207 	.get_flash_version	= qla82xx_get_flash_version,
2208 	.start_scsi             = qla82xx_start_scsi,
2209 	.start_scsi_mq          = NULL,
2210 	.abort_isp		= qla82xx_abort_isp,
2211 	.iospace_config     	= qla82xx_iospace_config,
2212 	.initialize_adapter	= qla2x00_initialize_adapter,
2213 };
2214 
2215 static struct isp_operations qla8044_isp_ops = {
2216 	.pci_config		= qla82xx_pci_config,
2217 	.reset_chip		= qla82xx_reset_chip,
2218 	.chip_diag		= qla24xx_chip_diag,
2219 	.config_rings		= qla82xx_config_rings,
2220 	.reset_adapter		= qla24xx_reset_adapter,
2221 	.nvram_config		= qla81xx_nvram_config,
2222 	.update_fw_options	= qla24xx_update_fw_options,
2223 	.load_risc		= qla82xx_load_risc,
2224 	.pci_info_str		= qla24xx_pci_info_str,
2225 	.fw_version_str		= qla24xx_fw_version_str,
2226 	.intr_handler		= qla8044_intr_handler,
2227 	.enable_intrs		= qla82xx_enable_intrs,
2228 	.disable_intrs		= qla82xx_disable_intrs,
2229 	.abort_command		= qla24xx_abort_command,
2230 	.target_reset		= qla24xx_abort_target,
2231 	.lun_reset		= qla24xx_lun_reset,
2232 	.fabric_login		= qla24xx_login_fabric,
2233 	.fabric_logout		= qla24xx_fabric_logout,
2234 	.calc_req_entries	= NULL,
2235 	.build_iocbs		= NULL,
2236 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2237 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2238 	.read_nvram		= NULL,
2239 	.write_nvram		= NULL,
2240 	.fw_dump		= qla8044_fw_dump,
2241 	.beacon_on		= qla82xx_beacon_on,
2242 	.beacon_off		= qla82xx_beacon_off,
2243 	.beacon_blink		= NULL,
2244 	.read_optrom		= qla8044_read_optrom_data,
2245 	.write_optrom		= qla8044_write_optrom_data,
2246 	.get_flash_version	= qla82xx_get_flash_version,
2247 	.start_scsi             = qla82xx_start_scsi,
2248 	.start_scsi_mq          = NULL,
2249 	.abort_isp		= qla8044_abort_isp,
2250 	.iospace_config		= qla82xx_iospace_config,
2251 	.initialize_adapter	= qla2x00_initialize_adapter,
2252 };
2253 
2254 static struct isp_operations qla83xx_isp_ops = {
2255 	.pci_config		= qla25xx_pci_config,
2256 	.reset_chip		= qla24xx_reset_chip,
2257 	.chip_diag		= qla24xx_chip_diag,
2258 	.config_rings		= qla24xx_config_rings,
2259 	.reset_adapter		= qla24xx_reset_adapter,
2260 	.nvram_config		= qla81xx_nvram_config,
2261 	.update_fw_options	= qla81xx_update_fw_options,
2262 	.load_risc		= qla81xx_load_risc,
2263 	.pci_info_str		= qla24xx_pci_info_str,
2264 	.fw_version_str		= qla24xx_fw_version_str,
2265 	.intr_handler		= qla24xx_intr_handler,
2266 	.enable_intrs		= qla24xx_enable_intrs,
2267 	.disable_intrs		= qla24xx_disable_intrs,
2268 	.abort_command		= qla24xx_abort_command,
2269 	.target_reset		= qla24xx_abort_target,
2270 	.lun_reset		= qla24xx_lun_reset,
2271 	.fabric_login		= qla24xx_login_fabric,
2272 	.fabric_logout		= qla24xx_fabric_logout,
2273 	.calc_req_entries	= NULL,
2274 	.build_iocbs		= NULL,
2275 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2276 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2277 	.read_nvram		= NULL,
2278 	.write_nvram		= NULL,
2279 	.fw_dump		= qla83xx_fw_dump,
2280 	.beacon_on		= qla24xx_beacon_on,
2281 	.beacon_off		= qla24xx_beacon_off,
2282 	.beacon_blink		= qla83xx_beacon_blink,
2283 	.read_optrom		= qla25xx_read_optrom_data,
2284 	.write_optrom		= qla24xx_write_optrom_data,
2285 	.get_flash_version	= qla24xx_get_flash_version,
2286 	.start_scsi		= qla24xx_dif_start_scsi,
2287 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2288 	.abort_isp		= qla2x00_abort_isp,
2289 	.iospace_config		= qla83xx_iospace_config,
2290 	.initialize_adapter	= qla2x00_initialize_adapter,
2291 };
2292 
2293 static struct isp_operations qlafx00_isp_ops = {
2294 	.pci_config		= qlafx00_pci_config,
2295 	.reset_chip		= qlafx00_soft_reset,
2296 	.chip_diag		= qlafx00_chip_diag,
2297 	.config_rings		= qlafx00_config_rings,
2298 	.reset_adapter		= qlafx00_soft_reset,
2299 	.nvram_config		= NULL,
2300 	.update_fw_options	= NULL,
2301 	.load_risc		= NULL,
2302 	.pci_info_str		= qlafx00_pci_info_str,
2303 	.fw_version_str		= qlafx00_fw_version_str,
2304 	.intr_handler		= qlafx00_intr_handler,
2305 	.enable_intrs		= qlafx00_enable_intrs,
2306 	.disable_intrs		= qlafx00_disable_intrs,
2307 	.abort_command		= qla24xx_async_abort_command,
2308 	.target_reset		= qlafx00_abort_target,
2309 	.lun_reset		= qlafx00_lun_reset,
2310 	.fabric_login		= NULL,
2311 	.fabric_logout		= NULL,
2312 	.calc_req_entries	= NULL,
2313 	.build_iocbs		= NULL,
2314 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2315 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2316 	.read_nvram		= qla24xx_read_nvram_data,
2317 	.write_nvram		= qla24xx_write_nvram_data,
2318 	.fw_dump		= NULL,
2319 	.beacon_on		= qla24xx_beacon_on,
2320 	.beacon_off		= qla24xx_beacon_off,
2321 	.beacon_blink		= NULL,
2322 	.read_optrom		= qla24xx_read_optrom_data,
2323 	.write_optrom		= qla24xx_write_optrom_data,
2324 	.get_flash_version	= qla24xx_get_flash_version,
2325 	.start_scsi		= qlafx00_start_scsi,
2326 	.start_scsi_mq          = NULL,
2327 	.abort_isp		= qlafx00_abort_isp,
2328 	.iospace_config		= qlafx00_iospace_config,
2329 	.initialize_adapter	= qlafx00_initialize_adapter,
2330 };
2331 
2332 static struct isp_operations qla27xx_isp_ops = {
2333 	.pci_config		= qla25xx_pci_config,
2334 	.reset_chip		= qla24xx_reset_chip,
2335 	.chip_diag		= qla24xx_chip_diag,
2336 	.config_rings		= qla24xx_config_rings,
2337 	.reset_adapter		= qla24xx_reset_adapter,
2338 	.nvram_config		= qla81xx_nvram_config,
2339 	.update_fw_options	= qla81xx_update_fw_options,
2340 	.load_risc		= qla81xx_load_risc,
2341 	.pci_info_str		= qla24xx_pci_info_str,
2342 	.fw_version_str		= qla24xx_fw_version_str,
2343 	.intr_handler		= qla24xx_intr_handler,
2344 	.enable_intrs		= qla24xx_enable_intrs,
2345 	.disable_intrs		= qla24xx_disable_intrs,
2346 	.abort_command		= qla24xx_abort_command,
2347 	.target_reset		= qla24xx_abort_target,
2348 	.lun_reset		= qla24xx_lun_reset,
2349 	.fabric_login		= qla24xx_login_fabric,
2350 	.fabric_logout		= qla24xx_fabric_logout,
2351 	.calc_req_entries	= NULL,
2352 	.build_iocbs		= NULL,
2353 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2354 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2355 	.read_nvram		= NULL,
2356 	.write_nvram		= NULL,
2357 	.fw_dump		= qla27xx_fwdump,
2358 	.beacon_on		= qla24xx_beacon_on,
2359 	.beacon_off		= qla24xx_beacon_off,
2360 	.beacon_blink		= qla83xx_beacon_blink,
2361 	.read_optrom		= qla25xx_read_optrom_data,
2362 	.write_optrom		= qla24xx_write_optrom_data,
2363 	.get_flash_version	= qla24xx_get_flash_version,
2364 	.start_scsi		= qla24xx_dif_start_scsi,
2365 	.start_scsi_mq          = qla2xxx_dif_start_scsi_mq,
2366 	.abort_isp		= qla2x00_abort_isp,
2367 	.iospace_config		= qla83xx_iospace_config,
2368 	.initialize_adapter	= qla2x00_initialize_adapter,
2369 };
2370 
2371 static inline void
2372 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2373 {
2374 	ha->device_type = DT_EXTENDED_IDS;
2375 	switch (ha->pdev->device) {
2376 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2377 		ha->isp_type |= DT_ISP2100;
2378 		ha->device_type &= ~DT_EXTENDED_IDS;
2379 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2380 		break;
2381 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2382 		ha->isp_type |= DT_ISP2200;
2383 		ha->device_type &= ~DT_EXTENDED_IDS;
2384 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2385 		break;
2386 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2387 		ha->isp_type |= DT_ISP2300;
2388 		ha->device_type |= DT_ZIO_SUPPORTED;
2389 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2390 		break;
2391 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2392 		ha->isp_type |= DT_ISP2312;
2393 		ha->device_type |= DT_ZIO_SUPPORTED;
2394 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2395 		break;
2396 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2397 		ha->isp_type |= DT_ISP2322;
2398 		ha->device_type |= DT_ZIO_SUPPORTED;
2399 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2400 		    ha->pdev->subsystem_device == 0x0170)
2401 			ha->device_type |= DT_OEM_001;
2402 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2403 		break;
2404 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2405 		ha->isp_type |= DT_ISP6312;
2406 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2407 		break;
2408 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2409 		ha->isp_type |= DT_ISP6322;
2410 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2411 		break;
2412 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2413 		ha->isp_type |= DT_ISP2422;
2414 		ha->device_type |= DT_ZIO_SUPPORTED;
2415 		ha->device_type |= DT_FWI2;
2416 		ha->device_type |= DT_IIDMA;
2417 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2418 		break;
2419 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2420 		ha->isp_type |= DT_ISP2432;
2421 		ha->device_type |= DT_ZIO_SUPPORTED;
2422 		ha->device_type |= DT_FWI2;
2423 		ha->device_type |= DT_IIDMA;
2424 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2425 		break;
2426 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2427 		ha->isp_type |= DT_ISP8432;
2428 		ha->device_type |= DT_ZIO_SUPPORTED;
2429 		ha->device_type |= DT_FWI2;
2430 		ha->device_type |= DT_IIDMA;
2431 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2432 		break;
2433 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2434 		ha->isp_type |= DT_ISP5422;
2435 		ha->device_type |= DT_FWI2;
2436 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2437 		break;
2438 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2439 		ha->isp_type |= DT_ISP5432;
2440 		ha->device_type |= DT_FWI2;
2441 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2442 		break;
2443 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2444 		ha->isp_type |= DT_ISP2532;
2445 		ha->device_type |= DT_ZIO_SUPPORTED;
2446 		ha->device_type |= DT_FWI2;
2447 		ha->device_type |= DT_IIDMA;
2448 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2449 		break;
2450 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2451 		ha->isp_type |= DT_ISP8001;
2452 		ha->device_type |= DT_ZIO_SUPPORTED;
2453 		ha->device_type |= DT_FWI2;
2454 		ha->device_type |= DT_IIDMA;
2455 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2456 		break;
2457 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2458 		ha->isp_type |= DT_ISP8021;
2459 		ha->device_type |= DT_ZIO_SUPPORTED;
2460 		ha->device_type |= DT_FWI2;
2461 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2462 		/* Initialize 82XX ISP flags */
2463 		qla82xx_init_flags(ha);
2464 		break;
2465 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2466 		ha->isp_type |= DT_ISP8044;
2467 		ha->device_type |= DT_ZIO_SUPPORTED;
2468 		ha->device_type |= DT_FWI2;
2469 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2470 		/* Initialize 82XX ISP flags */
2471 		qla82xx_init_flags(ha);
2472 		break;
2473 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2474 		ha->isp_type |= DT_ISP2031;
2475 		ha->device_type |= DT_ZIO_SUPPORTED;
2476 		ha->device_type |= DT_FWI2;
2477 		ha->device_type |= DT_IIDMA;
2478 		ha->device_type |= DT_T10_PI;
2479 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2480 		break;
2481 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2482 		ha->isp_type |= DT_ISP8031;
2483 		ha->device_type |= DT_ZIO_SUPPORTED;
2484 		ha->device_type |= DT_FWI2;
2485 		ha->device_type |= DT_IIDMA;
2486 		ha->device_type |= DT_T10_PI;
2487 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2488 		break;
2489 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2490 		ha->isp_type |= DT_ISPFX00;
2491 		break;
2492 	case PCI_DEVICE_ID_QLOGIC_ISP2071:
2493 		ha->isp_type |= DT_ISP2071;
2494 		ha->device_type |= DT_ZIO_SUPPORTED;
2495 		ha->device_type |= DT_FWI2;
2496 		ha->device_type |= DT_IIDMA;
2497 		ha->device_type |= DT_T10_PI;
2498 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2499 		break;
2500 	case PCI_DEVICE_ID_QLOGIC_ISP2271:
2501 		ha->isp_type |= DT_ISP2271;
2502 		ha->device_type |= DT_ZIO_SUPPORTED;
2503 		ha->device_type |= DT_FWI2;
2504 		ha->device_type |= DT_IIDMA;
2505 		ha->device_type |= DT_T10_PI;
2506 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2507 		break;
2508 	case PCI_DEVICE_ID_QLOGIC_ISP2261:
2509 		ha->isp_type |= DT_ISP2261;
2510 		ha->device_type |= DT_ZIO_SUPPORTED;
2511 		ha->device_type |= DT_FWI2;
2512 		ha->device_type |= DT_IIDMA;
2513 		ha->device_type |= DT_T10_PI;
2514 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2515 		break;
2516 	}
2517 
2518 	if (IS_QLA82XX(ha))
2519 		ha->port_no = ha->portnum & 1;
2520 	else {
2521 		/* Get adapter physical port no from interrupt pin register. */
2522 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2523 		if (IS_QLA27XX(ha))
2524 			ha->port_no--;
2525 		else
2526 			ha->port_no = !(ha->port_no & 1);
2527 	}
2528 
2529 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2530 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2531 	    ha->device_type, ha->port_no, ha->fw_srisc_address);
2532 }
2533 
2534 static void
2535 qla2xxx_scan_start(struct Scsi_Host *shost)
2536 {
2537 	scsi_qla_host_t *vha = shost_priv(shost);
2538 
2539 	if (vha->hw->flags.running_gold_fw)
2540 		return;
2541 
2542 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2543 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2544 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2545 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2546 }
2547 
2548 static int
2549 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2550 {
2551 	scsi_qla_host_t *vha = shost_priv(shost);
2552 
2553 	if (test_bit(UNLOADING, &vha->dpc_flags))
2554 		return 1;
2555 	if (!vha->host)
2556 		return 1;
2557 	if (time > vha->hw->loop_reset_delay * HZ)
2558 		return 1;
2559 
2560 	return atomic_read(&vha->loop_state) == LOOP_READY;
2561 }
2562 
2563 static void qla2x00_iocb_work_fn(struct work_struct *work)
2564 {
2565 	struct scsi_qla_host *vha = container_of(work,
2566 		struct scsi_qla_host, iocb_work);
2567 	int cnt = 0;
2568 
2569 	while (!list_empty(&vha->work_list)) {
2570 		qla2x00_do_work(vha);
2571 		cnt++;
2572 		if (cnt > 10)
2573 			break;
2574 	}
2575 }
2576 
2577 /*
2578  * PCI driver interface
2579  */
2580 static int
2581 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2582 {
2583 	int	ret = -ENODEV;
2584 	struct Scsi_Host *host;
2585 	scsi_qla_host_t *base_vha = NULL;
2586 	struct qla_hw_data *ha;
2587 	char pci_info[30];
2588 	char fw_str[30], wq_name[30];
2589 	struct scsi_host_template *sht;
2590 	int bars, mem_only = 0;
2591 	uint16_t req_length = 0, rsp_length = 0;
2592 	struct req_que *req = NULL;
2593 	struct rsp_que *rsp = NULL;
2594 	int i;
2595 
2596 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2597 	sht = &qla2xxx_driver_template;
2598 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2599 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2600 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2601 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2602 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2603 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2604 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2605 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2606 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2607 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2608 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2609 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044 ||
2610 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2071 ||
2611 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2271 ||
2612 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2261) {
2613 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2614 		mem_only = 1;
2615 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2616 		    "Mem only adapter.\n");
2617 	}
2618 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2619 	    "Bars=%d.\n", bars);
2620 
2621 	if (mem_only) {
2622 		if (pci_enable_device_mem(pdev))
2623 			goto probe_out;
2624 	} else {
2625 		if (pci_enable_device(pdev))
2626 			goto probe_out;
2627 	}
2628 
2629 	/* This may fail but that's ok */
2630 	pci_enable_pcie_error_reporting(pdev);
2631 
2632 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2633 	if (!ha) {
2634 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2635 		    "Unable to allocate memory for ha.\n");
2636 		goto probe_out;
2637 	}
2638 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2639 	    "Memory allocated for ha=%p.\n", ha);
2640 	ha->pdev = pdev;
2641 	ha->tgt.enable_class_2 = ql2xenableclass2;
2642 	INIT_LIST_HEAD(&ha->tgt.q_full_list);
2643 	spin_lock_init(&ha->tgt.q_full_lock);
2644 	spin_lock_init(&ha->tgt.sess_lock);
2645 	spin_lock_init(&ha->tgt.atio_lock);
2646 
2647 
2648 	/* Clear our data area */
2649 	ha->bars = bars;
2650 	ha->mem_only = mem_only;
2651 	spin_lock_init(&ha->hardware_lock);
2652 	spin_lock_init(&ha->vport_slock);
2653 	mutex_init(&ha->selflogin_lock);
2654 	mutex_init(&ha->optrom_mutex);
2655 
2656 	/* Set ISP-type information. */
2657 	qla2x00_set_isp_flags(ha);
2658 
2659 	/* Set EEH reset type to fundamental if required by hba */
2660 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2661 	    IS_QLA83XX(ha) || IS_QLA27XX(ha))
2662 		pdev->needs_freset = 1;
2663 
2664 	ha->prev_topology = 0;
2665 	ha->init_cb_size = sizeof(init_cb_t);
2666 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
2667 	ha->optrom_size = OPTROM_SIZE_2300;
2668 
2669 	/* Assign ISP specific operations. */
2670 	if (IS_QLA2100(ha)) {
2671 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2672 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2673 		req_length = REQUEST_ENTRY_CNT_2100;
2674 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2675 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2676 		ha->gid_list_info_size = 4;
2677 		ha->flash_conf_off = ~0;
2678 		ha->flash_data_off = ~0;
2679 		ha->nvram_conf_off = ~0;
2680 		ha->nvram_data_off = ~0;
2681 		ha->isp_ops = &qla2100_isp_ops;
2682 	} else if (IS_QLA2200(ha)) {
2683 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2684 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2685 		req_length = REQUEST_ENTRY_CNT_2200;
2686 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2687 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2688 		ha->gid_list_info_size = 4;
2689 		ha->flash_conf_off = ~0;
2690 		ha->flash_data_off = ~0;
2691 		ha->nvram_conf_off = ~0;
2692 		ha->nvram_data_off = ~0;
2693 		ha->isp_ops = &qla2100_isp_ops;
2694 	} else if (IS_QLA23XX(ha)) {
2695 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2696 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2697 		req_length = REQUEST_ENTRY_CNT_2200;
2698 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2699 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2700 		ha->gid_list_info_size = 6;
2701 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
2702 			ha->optrom_size = OPTROM_SIZE_2322;
2703 		ha->flash_conf_off = ~0;
2704 		ha->flash_data_off = ~0;
2705 		ha->nvram_conf_off = ~0;
2706 		ha->nvram_data_off = ~0;
2707 		ha->isp_ops = &qla2300_isp_ops;
2708 	} else if (IS_QLA24XX_TYPE(ha)) {
2709 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2710 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2711 		req_length = REQUEST_ENTRY_CNT_24XX;
2712 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2713 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2714 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2715 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2716 		ha->gid_list_info_size = 8;
2717 		ha->optrom_size = OPTROM_SIZE_24XX;
2718 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2719 		ha->isp_ops = &qla24xx_isp_ops;
2720 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2721 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2722 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2723 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2724 	} else if (IS_QLA25XX(ha)) {
2725 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2726 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2727 		req_length = REQUEST_ENTRY_CNT_24XX;
2728 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2729 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2730 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2731 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2732 		ha->gid_list_info_size = 8;
2733 		ha->optrom_size = OPTROM_SIZE_25XX;
2734 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2735 		ha->isp_ops = &qla25xx_isp_ops;
2736 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2737 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2738 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2739 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2740 	} else if (IS_QLA81XX(ha)) {
2741 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2742 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2743 		req_length = REQUEST_ENTRY_CNT_24XX;
2744 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2745 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2746 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2747 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2748 		ha->gid_list_info_size = 8;
2749 		ha->optrom_size = OPTROM_SIZE_81XX;
2750 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2751 		ha->isp_ops = &qla81xx_isp_ops;
2752 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2753 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2754 		ha->nvram_conf_off = ~0;
2755 		ha->nvram_data_off = ~0;
2756 	} else if (IS_QLA82XX(ha)) {
2757 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2758 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2759 		req_length = REQUEST_ENTRY_CNT_82XX;
2760 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2761 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2762 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2763 		ha->gid_list_info_size = 8;
2764 		ha->optrom_size = OPTROM_SIZE_82XX;
2765 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2766 		ha->isp_ops = &qla82xx_isp_ops;
2767 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2768 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2769 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2770 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2771 	} else if (IS_QLA8044(ha)) {
2772 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2773 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2774 		req_length = REQUEST_ENTRY_CNT_82XX;
2775 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2776 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2777 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2778 		ha->gid_list_info_size = 8;
2779 		ha->optrom_size = OPTROM_SIZE_83XX;
2780 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2781 		ha->isp_ops = &qla8044_isp_ops;
2782 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2783 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2784 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2785 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2786 	} else if (IS_QLA83XX(ha)) {
2787 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
2788 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2789 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2790 		req_length = REQUEST_ENTRY_CNT_83XX;
2791 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
2792 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2793 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2794 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2795 		ha->gid_list_info_size = 8;
2796 		ha->optrom_size = OPTROM_SIZE_83XX;
2797 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2798 		ha->isp_ops = &qla83xx_isp_ops;
2799 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2800 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2801 		ha->nvram_conf_off = ~0;
2802 		ha->nvram_data_off = ~0;
2803 	}  else if (IS_QLAFX00(ha)) {
2804 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
2805 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
2806 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
2807 		req_length = REQUEST_ENTRY_CNT_FX00;
2808 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
2809 		ha->isp_ops = &qlafx00_isp_ops;
2810 		ha->port_down_retry_count = 30; /* default value */
2811 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
2812 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
2813 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
2814 		ha->mr.fw_hbt_en = 1;
2815 		ha->mr.host_info_resend = false;
2816 		ha->mr.hinfo_resend_timer_tick = QLAFX00_HINFO_RESEND_INTERVAL;
2817 	} else if (IS_QLA27XX(ha)) {
2818 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
2819 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2820 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2821 		req_length = REQUEST_ENTRY_CNT_83XX;
2822 		rsp_length = RESPONSE_ENTRY_CNT_83XX;
2823 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2824 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2825 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2826 		ha->gid_list_info_size = 8;
2827 		ha->optrom_size = OPTROM_SIZE_83XX;
2828 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2829 		ha->isp_ops = &qla27xx_isp_ops;
2830 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2831 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2832 		ha->nvram_conf_off = ~0;
2833 		ha->nvram_data_off = ~0;
2834 	}
2835 
2836 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2837 	    "mbx_count=%d, req_length=%d, "
2838 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2839 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
2840 	    "max_fibre_devices=%d.\n",
2841 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2842 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2843 	    ha->nvram_npiv_size, ha->max_fibre_devices);
2844 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2845 	    "isp_ops=%p, flash_conf_off=%d, "
2846 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2847 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2848 	    ha->nvram_conf_off, ha->nvram_data_off);
2849 
2850 	/* Configure PCI I/O space */
2851 	ret = ha->isp_ops->iospace_config(ha);
2852 	if (ret)
2853 		goto iospace_config_failed;
2854 
2855 	ql_log_pci(ql_log_info, pdev, 0x001d,
2856 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
2857 	    pdev->device, pdev->irq, ha->iobase);
2858 	mutex_init(&ha->vport_lock);
2859 	mutex_init(&ha->mq_lock);
2860 	init_completion(&ha->mbx_cmd_comp);
2861 	complete(&ha->mbx_cmd_comp);
2862 	init_completion(&ha->mbx_intr_comp);
2863 	init_completion(&ha->dcbx_comp);
2864 	init_completion(&ha->lb_portup_comp);
2865 
2866 	set_bit(0, (unsigned long *) ha->vp_idx_map);
2867 
2868 	qla2x00_config_dma_addressing(ha);
2869 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2870 	    "64 Bit addressing is %s.\n",
2871 	    ha->flags.enable_64bit_addressing ? "enable" :
2872 	    "disable");
2873 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2874 	if (ret) {
2875 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
2876 		    "Failed to allocate memory for adapter, aborting.\n");
2877 
2878 		goto probe_hw_failed;
2879 	}
2880 
2881 	req->max_q_depth = MAX_Q_DEPTH;
2882 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2883 		req->max_q_depth = ql2xmaxqdepth;
2884 
2885 
2886 	base_vha = qla2x00_create_host(sht, ha);
2887 	if (!base_vha) {
2888 		ret = -ENOMEM;
2889 		qla2x00_mem_free(ha);
2890 		qla2x00_free_req_que(ha, req);
2891 		qla2x00_free_rsp_que(ha, rsp);
2892 		goto probe_hw_failed;
2893 	}
2894 
2895 	pci_set_drvdata(pdev, base_vha);
2896 	set_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
2897 
2898 	host = base_vha->host;
2899 	base_vha->req = req;
2900 	if (IS_QLA2XXX_MIDTYPE(ha))
2901 		base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2902 	else
2903 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2904 						base_vha->vp_idx;
2905 
2906 	/* Setup fcport template structure. */
2907 	ha->mr.fcport.vha = base_vha;
2908 	ha->mr.fcport.port_type = FCT_UNKNOWN;
2909 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
2910 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
2911 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
2912 	ha->mr.fcport.scan_state = 1;
2913 
2914 	/* Set the SG table size based on ISP type */
2915 	if (!IS_FWI2_CAPABLE(ha)) {
2916 		if (IS_QLA2100(ha))
2917 			host->sg_tablesize = 32;
2918 	} else {
2919 		if (!IS_QLA82XX(ha))
2920 			host->sg_tablesize = QLA_SG_ALL;
2921 	}
2922 	host->max_id = ha->max_fibre_devices;
2923 	host->cmd_per_lun = 3;
2924 	host->unique_id = host->host_no;
2925 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2926 		host->max_cmd_len = 32;
2927 	else
2928 		host->max_cmd_len = MAX_CMDSZ;
2929 	host->max_channel = MAX_BUSES - 1;
2930 	/* Older HBAs support only 16-bit LUNs */
2931 	if (!IS_QLAFX00(ha) && !IS_FWI2_CAPABLE(ha) &&
2932 	    ql2xmaxlun > 0xffff)
2933 		host->max_lun = 0xffff;
2934 	else
2935 		host->max_lun = ql2xmaxlun;
2936 	host->transportt = qla2xxx_transport_template;
2937 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2938 
2939 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
2940 	    "max_id=%d this_id=%d "
2941 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2942 	    "max_lun=%llu transportt=%p, vendor_id=%llu.\n", host->max_id,
2943 	    host->this_id, host->cmd_per_lun, host->unique_id,
2944 	    host->max_cmd_len, host->max_channel, host->max_lun,
2945 	    host->transportt, sht->vendor_id);
2946 
2947 	/* Set up the irqs */
2948 	ret = qla2x00_request_irqs(ha, rsp);
2949 	if (ret)
2950 		goto probe_init_failed;
2951 
2952 	/* Alloc arrays of request and response ring ptrs */
2953 	if (!qla2x00_alloc_queues(ha, req, rsp)) {
2954 		ql_log(ql_log_fatal, base_vha, 0x003d,
2955 		    "Failed to allocate memory for queue pointers..."
2956 		    "aborting.\n");
2957 		goto probe_init_failed;
2958 	}
2959 
2960 	if (ha->mqenable && shost_use_blk_mq(host)) {
2961 		/* number of hardware queues supported by blk/scsi-mq*/
2962 		host->nr_hw_queues = ha->max_qpairs;
2963 
2964 		ql_dbg(ql_dbg_init, base_vha, 0x0192,
2965 			"blk/scsi-mq enabled, HW queues = %d.\n", host->nr_hw_queues);
2966 	} else
2967 		ql_dbg(ql_dbg_init, base_vha, 0x0193,
2968 			"blk/scsi-mq disabled.\n");
2969 
2970 	qlt_probe_one_stage1(base_vha, ha);
2971 
2972 	pci_save_state(pdev);
2973 
2974 	/* Assign back pointers */
2975 	rsp->req = req;
2976 	req->rsp = rsp;
2977 
2978 	if (IS_QLAFX00(ha)) {
2979 		ha->rsp_q_map[0] = rsp;
2980 		ha->req_q_map[0] = req;
2981 		set_bit(0, ha->req_qid_map);
2982 		set_bit(0, ha->rsp_qid_map);
2983 	}
2984 
2985 	/* FWI2-capable only. */
2986 	req->req_q_in = &ha->iobase->isp24.req_q_in;
2987 	req->req_q_out = &ha->iobase->isp24.req_q_out;
2988 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2989 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2990 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2991 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2992 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2993 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2994 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2995 	}
2996 
2997 	if (IS_QLAFX00(ha)) {
2998 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
2999 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
3000 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
3001 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
3002 	}
3003 
3004 	if (IS_P3P_TYPE(ha)) {
3005 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
3006 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
3007 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
3008 	}
3009 
3010 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
3011 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3012 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3013 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
3014 	    "req->req_q_in=%p req->req_q_out=%p "
3015 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3016 	    req->req_q_in, req->req_q_out,
3017 	    rsp->rsp_q_in, rsp->rsp_q_out);
3018 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
3019 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
3020 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
3021 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
3022 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
3023 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
3024 
3025 	if (ha->isp_ops->initialize_adapter(base_vha)) {
3026 		ql_log(ql_log_fatal, base_vha, 0x00d6,
3027 		    "Failed to initialize adapter - Adapter flags %x.\n",
3028 		    base_vha->device_flags);
3029 
3030 		if (IS_QLA82XX(ha)) {
3031 			qla82xx_idc_lock(ha);
3032 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
3033 				QLA8XXX_DEV_FAILED);
3034 			qla82xx_idc_unlock(ha);
3035 			ql_log(ql_log_fatal, base_vha, 0x00d7,
3036 			    "HW State: FAILED.\n");
3037 		} else if (IS_QLA8044(ha)) {
3038 			qla8044_idc_lock(ha);
3039 			qla8044_wr_direct(base_vha,
3040 				QLA8044_CRB_DEV_STATE_INDEX,
3041 				QLA8XXX_DEV_FAILED);
3042 			qla8044_idc_unlock(ha);
3043 			ql_log(ql_log_fatal, base_vha, 0x0150,
3044 			    "HW State: FAILED.\n");
3045 		}
3046 
3047 		ret = -ENODEV;
3048 		goto probe_failed;
3049 	}
3050 
3051 	if (IS_QLAFX00(ha))
3052 		host->can_queue = QLAFX00_MAX_CANQUEUE;
3053 	else
3054 		host->can_queue = req->num_outstanding_cmds - 10;
3055 
3056 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
3057 	    "can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
3058 	    host->can_queue, base_vha->req,
3059 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
3060 
3061 	if (ha->mqenable && qla_ini_mode_enabled(base_vha)) {
3062 		ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
3063 		/* Create start of day qpairs for Block MQ */
3064 		if (shost_use_blk_mq(host)) {
3065 			for (i = 0; i < ha->max_qpairs; i++)
3066 				qla2xxx_create_qpair(base_vha, 5, 0);
3067 		}
3068 	}
3069 
3070 	if (ha->flags.running_gold_fw)
3071 		goto skip_dpc;
3072 
3073 	/*
3074 	 * Startup the kernel thread for this host adapter
3075 	 */
3076 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
3077 	    "%s_dpc", base_vha->host_str);
3078 	if (IS_ERR(ha->dpc_thread)) {
3079 		ql_log(ql_log_fatal, base_vha, 0x00ed,
3080 		    "Failed to start DPC thread.\n");
3081 		ret = PTR_ERR(ha->dpc_thread);
3082 		goto probe_failed;
3083 	}
3084 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
3085 	    "DPC thread started successfully.\n");
3086 
3087 	/*
3088 	 * If we're not coming up in initiator mode, we might sit for
3089 	 * a while without waking up the dpc thread, which leads to a
3090 	 * stuck process warning.  So just kick the dpc once here and
3091 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
3092 	 */
3093 	qla2xxx_wake_dpc(base_vha);
3094 
3095 	INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn);
3096 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
3097 
3098 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
3099 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
3100 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
3101 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
3102 
3103 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
3104 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
3105 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
3106 		INIT_WORK(&ha->idc_state_handler,
3107 		    qla83xx_idc_state_handler_work);
3108 		INIT_WORK(&ha->nic_core_unrecoverable,
3109 		    qla83xx_nic_core_unrecoverable_work);
3110 	}
3111 
3112 skip_dpc:
3113 	list_add_tail(&base_vha->list, &ha->vp_list);
3114 	base_vha->host->irq = ha->pdev->irq;
3115 
3116 	/* Initialized the timer */
3117 	qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
3118 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
3119 	    "Started qla2x00_timer with "
3120 	    "interval=%d.\n", WATCH_INTERVAL);
3121 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
3122 	    "Detected hba at address=%p.\n",
3123 	    ha);
3124 
3125 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
3126 		if (ha->fw_attributes & BIT_4) {
3127 			int prot = 0, guard;
3128 			base_vha->flags.difdix_supported = 1;
3129 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
3130 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
3131 			if (ql2xenabledif == 1)
3132 				prot = SHOST_DIX_TYPE0_PROTECTION;
3133 			scsi_host_set_prot(host,
3134 			    prot | SHOST_DIF_TYPE1_PROTECTION
3135 			    | SHOST_DIF_TYPE2_PROTECTION
3136 			    | SHOST_DIF_TYPE3_PROTECTION
3137 			    | SHOST_DIX_TYPE1_PROTECTION
3138 			    | SHOST_DIX_TYPE2_PROTECTION
3139 			    | SHOST_DIX_TYPE3_PROTECTION);
3140 
3141 			guard = SHOST_DIX_GUARD_CRC;
3142 
3143 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
3144 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
3145 				guard |= SHOST_DIX_GUARD_IP;
3146 
3147 			scsi_host_set_guard(host, guard);
3148 		} else
3149 			base_vha->flags.difdix_supported = 0;
3150 	}
3151 
3152 	ha->isp_ops->enable_intrs(ha);
3153 
3154 	if (IS_QLAFX00(ha)) {
3155 		ret = qlafx00_fx_disc(base_vha,
3156 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
3157 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
3158 		    QLA_SG_ALL : 128;
3159 	}
3160 
3161 	ret = scsi_add_host(host, &pdev->dev);
3162 	if (ret)
3163 		goto probe_failed;
3164 
3165 	base_vha->flags.init_done = 1;
3166 	base_vha->flags.online = 1;
3167 	ha->prev_minidump_failed = 0;
3168 
3169 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
3170 	    "Init done and hba is online.\n");
3171 
3172 	if (qla_ini_mode_enabled(base_vha) ||
3173 		qla_dual_mode_enabled(base_vha))
3174 		scsi_scan_host(host);
3175 	else
3176 		ql_dbg(ql_dbg_init, base_vha, 0x0122,
3177 			"skipping scsi_scan_host() for non-initiator port\n");
3178 
3179 	qla2x00_alloc_sysfs_attr(base_vha);
3180 
3181 	if (IS_QLAFX00(ha)) {
3182 		ret = qlafx00_fx_disc(base_vha,
3183 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
3184 
3185 		/* Register system information */
3186 		ret =  qlafx00_fx_disc(base_vha,
3187 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
3188 	}
3189 
3190 	qla2x00_init_host_attr(base_vha);
3191 
3192 	qla2x00_dfs_setup(base_vha);
3193 
3194 	ql_log(ql_log_info, base_vha, 0x00fb,
3195 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
3196 	ql_log(ql_log_info, base_vha, 0x00fc,
3197 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
3198 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
3199 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
3200 	    base_vha->host_no,
3201 	    ha->isp_ops->fw_version_str(base_vha, fw_str, sizeof(fw_str)));
3202 
3203 	qlt_add_target(ha, base_vha);
3204 
3205 	clear_bit(PFLG_DRIVER_PROBING, &base_vha->pci_flags);
3206 
3207 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3208 		return -ENODEV;
3209 
3210 	return 0;
3211 
3212 probe_init_failed:
3213 	qla2x00_free_req_que(ha, req);
3214 	ha->req_q_map[0] = NULL;
3215 	clear_bit(0, ha->req_qid_map);
3216 	qla2x00_free_rsp_que(ha, rsp);
3217 	ha->rsp_q_map[0] = NULL;
3218 	clear_bit(0, ha->rsp_qid_map);
3219 	ha->max_req_queues = ha->max_rsp_queues = 0;
3220 
3221 probe_failed:
3222 	if (base_vha->timer_active)
3223 		qla2x00_stop_timer(base_vha);
3224 	base_vha->flags.online = 0;
3225 	if (ha->dpc_thread) {
3226 		struct task_struct *t = ha->dpc_thread;
3227 
3228 		ha->dpc_thread = NULL;
3229 		kthread_stop(t);
3230 	}
3231 
3232 	qla2x00_free_device(base_vha);
3233 
3234 	scsi_host_put(base_vha->host);
3235 
3236 probe_hw_failed:
3237 	qla2x00_clear_drv_active(ha);
3238 
3239 iospace_config_failed:
3240 	if (IS_P3P_TYPE(ha)) {
3241 		if (!ha->nx_pcibase)
3242 			iounmap((device_reg_t *)ha->nx_pcibase);
3243 		if (!ql2xdbwr)
3244 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3245 	} else {
3246 		if (ha->iobase)
3247 			iounmap(ha->iobase);
3248 		if (ha->cregbase)
3249 			iounmap(ha->cregbase);
3250 	}
3251 	pci_release_selected_regions(ha->pdev, ha->bars);
3252 	kfree(ha);
3253 	ha = NULL;
3254 
3255 probe_out:
3256 	pci_disable_device(pdev);
3257 	return ret;
3258 }
3259 
3260 static void
3261 qla2x00_shutdown(struct pci_dev *pdev)
3262 {
3263 	scsi_qla_host_t *vha;
3264 	struct qla_hw_data  *ha;
3265 
3266 	if (!atomic_read(&pdev->enable_cnt))
3267 		return;
3268 
3269 	vha = pci_get_drvdata(pdev);
3270 	ha = vha->hw;
3271 
3272 	/* Notify ISPFX00 firmware */
3273 	if (IS_QLAFX00(ha))
3274 		qlafx00_driver_shutdown(vha, 20);
3275 
3276 	/* Turn-off FCE trace */
3277 	if (ha->flags.fce_enabled) {
3278 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3279 		ha->flags.fce_enabled = 0;
3280 	}
3281 
3282 	/* Turn-off EFT trace */
3283 	if (ha->eft)
3284 		qla2x00_disable_eft_trace(vha);
3285 
3286 	/* Stop currently executing firmware. */
3287 	qla2x00_try_to_stop_firmware(vha);
3288 
3289 	/* Turn adapter off line */
3290 	vha->flags.online = 0;
3291 
3292 	/* turn-off interrupts on the card */
3293 	if (ha->interrupts_on) {
3294 		vha->flags.init_done = 0;
3295 		ha->isp_ops->disable_intrs(ha);
3296 	}
3297 
3298 	qla2x00_free_irqs(vha);
3299 
3300 	qla2x00_free_fw_dump(ha);
3301 
3302 	pci_disable_pcie_error_reporting(pdev);
3303 	pci_disable_device(pdev);
3304 }
3305 
3306 /* Deletes all the virtual ports for a given ha */
3307 static void
3308 qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
3309 {
3310 	scsi_qla_host_t *vha;
3311 	unsigned long flags;
3312 
3313 	mutex_lock(&ha->vport_lock);
3314 	while (ha->cur_vport_count) {
3315 		spin_lock_irqsave(&ha->vport_slock, flags);
3316 
3317 		BUG_ON(base_vha->list.next == &ha->vp_list);
3318 		/* This assumes first entry in ha->vp_list is always base vha */
3319 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3320 		scsi_host_get(vha->host);
3321 
3322 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3323 		mutex_unlock(&ha->vport_lock);
3324 
3325 		fc_vport_terminate(vha->fc_vport);
3326 		scsi_host_put(vha->host);
3327 
3328 		mutex_lock(&ha->vport_lock);
3329 	}
3330 	mutex_unlock(&ha->vport_lock);
3331 }
3332 
3333 /* Stops all deferred work threads */
3334 static void
3335 qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
3336 {
3337 	/* Cancel all work and destroy DPC workqueues */
3338 	if (ha->dpc_lp_wq) {
3339 		cancel_work_sync(&ha->idc_aen);
3340 		destroy_workqueue(ha->dpc_lp_wq);
3341 		ha->dpc_lp_wq = NULL;
3342 	}
3343 
3344 	if (ha->dpc_hp_wq) {
3345 		cancel_work_sync(&ha->nic_core_reset);
3346 		cancel_work_sync(&ha->idc_state_handler);
3347 		cancel_work_sync(&ha->nic_core_unrecoverable);
3348 		destroy_workqueue(ha->dpc_hp_wq);
3349 		ha->dpc_hp_wq = NULL;
3350 	}
3351 
3352 	/* Kill the kernel thread for this host */
3353 	if (ha->dpc_thread) {
3354 		struct task_struct *t = ha->dpc_thread;
3355 
3356 		/*
3357 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3358 		 * so we need to zero it out.
3359 		 */
3360 		ha->dpc_thread = NULL;
3361 		kthread_stop(t);
3362 	}
3363 }
3364 
3365 static void
3366 qla2x00_unmap_iobases(struct qla_hw_data *ha)
3367 {
3368 	if (IS_QLA82XX(ha)) {
3369 
3370 		iounmap((device_reg_t *)ha->nx_pcibase);
3371 		if (!ql2xdbwr)
3372 			iounmap((device_reg_t *)ha->nxdb_wr_ptr);
3373 	} else {
3374 		if (ha->iobase)
3375 			iounmap(ha->iobase);
3376 
3377 		if (ha->cregbase)
3378 			iounmap(ha->cregbase);
3379 
3380 		if (ha->mqiobase)
3381 			iounmap(ha->mqiobase);
3382 
3383 		if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) && ha->msixbase)
3384 			iounmap(ha->msixbase);
3385 	}
3386 }
3387 
3388 static void
3389 qla2x00_clear_drv_active(struct qla_hw_data *ha)
3390 {
3391 	if (IS_QLA8044(ha)) {
3392 		qla8044_idc_lock(ha);
3393 		qla8044_clear_drv_active(ha);
3394 		qla8044_idc_unlock(ha);
3395 	} else if (IS_QLA82XX(ha)) {
3396 		qla82xx_idc_lock(ha);
3397 		qla82xx_clear_drv_active(ha);
3398 		qla82xx_idc_unlock(ha);
3399 	}
3400 }
3401 
3402 static void
3403 qla2x00_remove_one(struct pci_dev *pdev)
3404 {
3405 	scsi_qla_host_t *base_vha;
3406 	struct qla_hw_data  *ha;
3407 
3408 	base_vha = pci_get_drvdata(pdev);
3409 	ha = base_vha->hw;
3410 
3411 	/* Indicate device removal to prevent future board_disable and wait
3412 	 * until any pending board_disable has completed. */
3413 	set_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags);
3414 	cancel_work_sync(&ha->board_disable);
3415 
3416 	/*
3417 	 * If the PCI device is disabled then there was a PCI-disconnect and
3418 	 * qla2x00_disable_board_on_pci_error has taken care of most of the
3419 	 * resources.
3420 	 */
3421 	if (!atomic_read(&pdev->enable_cnt)) {
3422 		dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size,
3423 		    base_vha->gnl.l, base_vha->gnl.ldma);
3424 
3425 		scsi_host_put(base_vha->host);
3426 		kfree(ha);
3427 		pci_set_drvdata(pdev, NULL);
3428 		return;
3429 	}
3430 	qla2x00_wait_for_hba_ready(base_vha);
3431 
3432 	/*
3433 	 * if UNLOAD flag is already set, then continue unload,
3434 	 * where it was set first.
3435 	 */
3436 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
3437 		return;
3438 
3439 	set_bit(UNLOADING, &base_vha->dpc_flags);
3440 	dma_free_coherent(&ha->pdev->dev,
3441 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
3442 
3443 	if (IS_QLAFX00(ha))
3444 		qlafx00_driver_shutdown(base_vha, 20);
3445 
3446 	qla2x00_delete_all_vps(ha, base_vha);
3447 
3448 	if (IS_QLA8031(ha)) {
3449 		ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3450 		    "Clearing fcoe driver presence.\n");
3451 		if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3452 			ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3453 			    "Error while clearing DRV-Presence.\n");
3454 	}
3455 
3456 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3457 
3458 	qla2x00_dfs_remove(base_vha);
3459 
3460 	qla84xx_put_chip(base_vha);
3461 
3462 	/* Laser should be disabled only for ISP2031 */
3463 	if (IS_QLA2031(ha))
3464 		qla83xx_disable_laser(base_vha);
3465 
3466 	/* Disable timer */
3467 	if (base_vha->timer_active)
3468 		qla2x00_stop_timer(base_vha);
3469 
3470 	base_vha->flags.online = 0;
3471 
3472 	/* free DMA memory */
3473 	if (ha->exlogin_buf)
3474 		qla2x00_free_exlogin_buffer(ha);
3475 
3476 	/* free DMA memory */
3477 	if (ha->exchoffld_buf)
3478 		qla2x00_free_exchoffld_buffer(ha);
3479 
3480 	qla2x00_destroy_deferred_work(ha);
3481 
3482 	qlt_remove_target(ha, base_vha);
3483 
3484 	qla2x00_free_sysfs_attr(base_vha, true);
3485 
3486 	fc_remove_host(base_vha->host);
3487 	qlt_remove_target_resources(ha);
3488 
3489 	scsi_remove_host(base_vha->host);
3490 
3491 	qla2x00_free_device(base_vha);
3492 
3493 	qla2x00_clear_drv_active(ha);
3494 
3495 	scsi_host_put(base_vha->host);
3496 
3497 	qla2x00_unmap_iobases(ha);
3498 
3499 	pci_release_selected_regions(ha->pdev, ha->bars);
3500 	kfree(ha);
3501 	ha = NULL;
3502 
3503 	pci_disable_pcie_error_reporting(pdev);
3504 
3505 	pci_disable_device(pdev);
3506 }
3507 
3508 static void
3509 qla2x00_free_device(scsi_qla_host_t *vha)
3510 {
3511 	struct qla_hw_data *ha = vha->hw;
3512 
3513 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3514 
3515 	/* Disable timer */
3516 	if (vha->timer_active)
3517 		qla2x00_stop_timer(vha);
3518 
3519 	qla25xx_delete_queues(vha);
3520 
3521 	if (ha->flags.fce_enabled)
3522 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3523 
3524 	if (ha->eft)
3525 		qla2x00_disable_eft_trace(vha);
3526 
3527 	/* Stop currently executing firmware. */
3528 	qla2x00_try_to_stop_firmware(vha);
3529 
3530 	vha->flags.online = 0;
3531 
3532 	/* turn-off interrupts on the card */
3533 	if (ha->interrupts_on) {
3534 		vha->flags.init_done = 0;
3535 		ha->isp_ops->disable_intrs(ha);
3536 	}
3537 
3538 	qla2x00_free_fcports(vha);
3539 
3540 	qla2x00_free_irqs(vha);
3541 
3542 	/* Flush the work queue and remove it */
3543 	if (ha->wq) {
3544 		flush_workqueue(ha->wq);
3545 		destroy_workqueue(ha->wq);
3546 		ha->wq = NULL;
3547 	}
3548 
3549 
3550 	qla2x00_mem_free(ha);
3551 
3552 	qla82xx_md_free(vha);
3553 
3554 	qla2x00_free_queues(ha);
3555 }
3556 
3557 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3558 {
3559 	fc_port_t *fcport, *tfcport;
3560 
3561 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
3562 		list_del(&fcport->list);
3563 		qla2x00_clear_loop_id(fcport);
3564 		kfree(fcport);
3565 		fcport = NULL;
3566 	}
3567 }
3568 
3569 static inline void
3570 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
3571     int defer)
3572 {
3573 	struct fc_rport *rport;
3574 	scsi_qla_host_t *base_vha;
3575 	unsigned long flags;
3576 
3577 	if (!fcport->rport)
3578 		return;
3579 
3580 	rport = fcport->rport;
3581 	if (defer) {
3582 		base_vha = pci_get_drvdata(vha->hw->pdev);
3583 		spin_lock_irqsave(vha->host->host_lock, flags);
3584 		fcport->drport = rport;
3585 		spin_unlock_irqrestore(vha->host->host_lock, flags);
3586 		qlt_do_generation_tick(vha, &base_vha->total_fcport_update_gen);
3587 		set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3588 		qla2xxx_wake_dpc(base_vha);
3589 	} else {
3590 		int now;
3591 		if (rport) {
3592 			ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
3593 				"%s %8phN. rport %p roles %x \n",
3594 				__func__, fcport->port_name, rport,
3595 				rport->roles);
3596 			fc_remote_port_delete(rport);
3597 		}
3598 		qlt_do_generation_tick(vha, &now);
3599 	}
3600 }
3601 
3602 /*
3603  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
3604  *
3605  * Input: ha = adapter block pointer.  fcport = port structure pointer.
3606  *
3607  * Return: None.
3608  *
3609  * Context:
3610  */
3611 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
3612     int do_login, int defer)
3613 {
3614 	if (IS_QLAFX00(vha->hw)) {
3615 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3616 		qla2x00_schedule_rport_del(vha, fcport, defer);
3617 		return;
3618 	}
3619 
3620 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
3621 	    vha->vp_idx == fcport->vha->vp_idx) {
3622 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3623 		qla2x00_schedule_rport_del(vha, fcport, defer);
3624 	}
3625 	/*
3626 	 * We may need to retry the login, so don't change the state of the
3627 	 * port but do the retries.
3628 	 */
3629 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
3630 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3631 
3632 	if (!do_login)
3633 		return;
3634 
3635 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3636 
3637 	if (fcport->login_retry == 0) {
3638 		fcport->login_retry = vha->hw->login_retry_count;
3639 
3640 		ql_dbg(ql_dbg_disc, vha, 0x2067,
3641 		    "Port login retry %8phN, lid 0x%04x retry cnt=%d.\n",
3642 		    fcport->port_name, fcport->loop_id, fcport->login_retry);
3643 	}
3644 }
3645 
3646 /*
3647  * qla2x00_mark_all_devices_lost
3648  *	Updates fcport state when device goes offline.
3649  *
3650  * Input:
3651  *	ha = adapter block pointer.
3652  *	fcport = port structure pointer.
3653  *
3654  * Return:
3655  *	None.
3656  *
3657  * Context:
3658  */
3659 void
3660 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
3661 {
3662 	fc_port_t *fcport;
3663 
3664 	ql_dbg(ql_dbg_disc, vha, 0xffff,
3665 		   "Mark all dev lost\n");
3666 
3667 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
3668 		fcport->scan_state = 0;
3669 		qlt_schedule_sess_for_deletion_lock(fcport);
3670 
3671 		if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
3672 			continue;
3673 
3674 		/*
3675 		 * No point in marking the device as lost, if the device is
3676 		 * already DEAD.
3677 		 */
3678 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
3679 			continue;
3680 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
3681 			qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3682 			if (defer)
3683 				qla2x00_schedule_rport_del(vha, fcport, defer);
3684 			else if (vha->vp_idx == fcport->vha->vp_idx)
3685 				qla2x00_schedule_rport_del(vha, fcport, defer);
3686 		}
3687 	}
3688 }
3689 
3690 /*
3691 * qla2x00_mem_alloc
3692 *      Allocates adapter memory.
3693 *
3694 * Returns:
3695 *      0  = success.
3696 *      !0  = failure.
3697 */
3698 static int
3699 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
3700 	struct req_que **req, struct rsp_que **rsp)
3701 {
3702 	char	name[16];
3703 
3704 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
3705 		&ha->init_cb_dma, GFP_KERNEL);
3706 	if (!ha->init_cb)
3707 		goto fail;
3708 
3709 	if (qlt_mem_alloc(ha) < 0)
3710 		goto fail_free_init_cb;
3711 
3712 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
3713 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
3714 	if (!ha->gid_list)
3715 		goto fail_free_tgt_mem;
3716 
3717 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
3718 	if (!ha->srb_mempool)
3719 		goto fail_free_gid_list;
3720 
3721 	if (IS_P3P_TYPE(ha)) {
3722 		/* Allocate cache for CT6 Ctx. */
3723 		if (!ctx_cachep) {
3724 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
3725 				sizeof(struct ct6_dsd), 0,
3726 				SLAB_HWCACHE_ALIGN, NULL);
3727 			if (!ctx_cachep)
3728 				goto fail_free_srb_mempool;
3729 		}
3730 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
3731 			ctx_cachep);
3732 		if (!ha->ctx_mempool)
3733 			goto fail_free_srb_mempool;
3734 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
3735 		    "ctx_cachep=%p ctx_mempool=%p.\n",
3736 		    ctx_cachep, ha->ctx_mempool);
3737 	}
3738 
3739 	/* Get memory for cached NVRAM */
3740 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
3741 	if (!ha->nvram)
3742 		goto fail_free_ctx_mempool;
3743 
3744 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
3745 		ha->pdev->device);
3746 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3747 		DMA_POOL_SIZE, 8, 0);
3748 	if (!ha->s_dma_pool)
3749 		goto fail_free_nvram;
3750 
3751 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
3752 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
3753 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
3754 
3755 	if (IS_P3P_TYPE(ha) || ql2xenabledif) {
3756 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3757 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
3758 		if (!ha->dl_dma_pool) {
3759 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
3760 			    "Failed to allocate memory for dl_dma_pool.\n");
3761 			goto fail_s_dma_pool;
3762 		}
3763 
3764 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3765 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
3766 		if (!ha->fcp_cmnd_dma_pool) {
3767 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
3768 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
3769 			goto fail_dl_dma_pool;
3770 		}
3771 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
3772 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
3773 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
3774 	}
3775 
3776 	/* Allocate memory for SNS commands */
3777 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3778 	/* Get consistent memory allocated for SNS commands */
3779 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
3780 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
3781 		if (!ha->sns_cmd)
3782 			goto fail_dma_pool;
3783 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
3784 		    "sns_cmd: %p.\n", ha->sns_cmd);
3785 	} else {
3786 	/* Get consistent memory allocated for MS IOCB */
3787 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3788 			&ha->ms_iocb_dma);
3789 		if (!ha->ms_iocb)
3790 			goto fail_dma_pool;
3791 	/* Get consistent memory allocated for CT SNS commands */
3792 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
3793 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
3794 		if (!ha->ct_sns)
3795 			goto fail_free_ms_iocb;
3796 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
3797 		    "ms_iocb=%p ct_sns=%p.\n",
3798 		    ha->ms_iocb, ha->ct_sns);
3799 	}
3800 
3801 	/* Allocate memory for request ring */
3802 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
3803 	if (!*req) {
3804 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
3805 		    "Failed to allocate memory for req.\n");
3806 		goto fail_req;
3807 	}
3808 	(*req)->length = req_len;
3809 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
3810 		((*req)->length + 1) * sizeof(request_t),
3811 		&(*req)->dma, GFP_KERNEL);
3812 	if (!(*req)->ring) {
3813 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
3814 		    "Failed to allocate memory for req_ring.\n");
3815 		goto fail_req_ring;
3816 	}
3817 	/* Allocate memory for response ring */
3818 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
3819 	if (!*rsp) {
3820 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
3821 		    "Failed to allocate memory for rsp.\n");
3822 		goto fail_rsp;
3823 	}
3824 	(*rsp)->hw = ha;
3825 	(*rsp)->length = rsp_len;
3826 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
3827 		((*rsp)->length + 1) * sizeof(response_t),
3828 		&(*rsp)->dma, GFP_KERNEL);
3829 	if (!(*rsp)->ring) {
3830 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
3831 		    "Failed to allocate memory for rsp_ring.\n");
3832 		goto fail_rsp_ring;
3833 	}
3834 	(*req)->rsp = *rsp;
3835 	(*rsp)->req = *req;
3836 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
3837 	    "req=%p req->length=%d req->ring=%p rsp=%p "
3838 	    "rsp->length=%d rsp->ring=%p.\n",
3839 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
3840 	    (*rsp)->ring);
3841 	/* Allocate memory for NVRAM data for vports */
3842 	if (ha->nvram_npiv_size) {
3843 		ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
3844 		    ha->nvram_npiv_size, GFP_KERNEL);
3845 		if (!ha->npiv_info) {
3846 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
3847 			    "Failed to allocate memory for npiv_info.\n");
3848 			goto fail_npiv_info;
3849 		}
3850 	} else
3851 		ha->npiv_info = NULL;
3852 
3853 	/* Get consistent memory allocated for EX-INIT-CB. */
3854 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha)) {
3855 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3856 		    &ha->ex_init_cb_dma);
3857 		if (!ha->ex_init_cb)
3858 			goto fail_ex_init_cb;
3859 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
3860 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
3861 	}
3862 
3863 	INIT_LIST_HEAD(&ha->gbl_dsd_list);
3864 
3865 	/* Get consistent memory allocated for Async Port-Database. */
3866 	if (!IS_FWI2_CAPABLE(ha)) {
3867 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3868 			&ha->async_pd_dma);
3869 		if (!ha->async_pd)
3870 			goto fail_async_pd;
3871 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
3872 		    "async_pd=%p.\n", ha->async_pd);
3873 	}
3874 
3875 	INIT_LIST_HEAD(&ha->vp_list);
3876 
3877 	/* Allocate memory for our loop_id bitmap */
3878 	ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
3879 	    GFP_KERNEL);
3880 	if (!ha->loop_id_map)
3881 		goto fail_loop_id_map;
3882 	else {
3883 		qla2x00_set_reserved_loop_ids(ha);
3884 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
3885 		    "loop_id_map=%p.\n", ha->loop_id_map);
3886 	}
3887 
3888 	return 0;
3889 
3890 fail_loop_id_map:
3891 	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3892 fail_async_pd:
3893 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
3894 fail_ex_init_cb:
3895 	kfree(ha->npiv_info);
3896 fail_npiv_info:
3897 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
3898 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
3899 	(*rsp)->ring = NULL;
3900 	(*rsp)->dma = 0;
3901 fail_rsp_ring:
3902 	kfree(*rsp);
3903 fail_rsp:
3904 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
3905 		sizeof(request_t), (*req)->ring, (*req)->dma);
3906 	(*req)->ring = NULL;
3907 	(*req)->dma = 0;
3908 fail_req_ring:
3909 	kfree(*req);
3910 fail_req:
3911 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3912 		ha->ct_sns, ha->ct_sns_dma);
3913 	ha->ct_sns = NULL;
3914 	ha->ct_sns_dma = 0;
3915 fail_free_ms_iocb:
3916 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3917 	ha->ms_iocb = NULL;
3918 	ha->ms_iocb_dma = 0;
3919 
3920 	if (ha->sns_cmd)
3921 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3922 		    ha->sns_cmd, ha->sns_cmd_dma);
3923 fail_dma_pool:
3924 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3925 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3926 		ha->fcp_cmnd_dma_pool = NULL;
3927 	}
3928 fail_dl_dma_pool:
3929 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3930 		dma_pool_destroy(ha->dl_dma_pool);
3931 		ha->dl_dma_pool = NULL;
3932 	}
3933 fail_s_dma_pool:
3934 	dma_pool_destroy(ha->s_dma_pool);
3935 	ha->s_dma_pool = NULL;
3936 fail_free_nvram:
3937 	kfree(ha->nvram);
3938 	ha->nvram = NULL;
3939 fail_free_ctx_mempool:
3940 	if (ha->ctx_mempool)
3941 		mempool_destroy(ha->ctx_mempool);
3942 	ha->ctx_mempool = NULL;
3943 fail_free_srb_mempool:
3944 	if (ha->srb_mempool)
3945 		mempool_destroy(ha->srb_mempool);
3946 	ha->srb_mempool = NULL;
3947 fail_free_gid_list:
3948 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3949 	ha->gid_list,
3950 	ha->gid_list_dma);
3951 	ha->gid_list = NULL;
3952 	ha->gid_list_dma = 0;
3953 fail_free_tgt_mem:
3954 	qlt_mem_free(ha);
3955 fail_free_init_cb:
3956 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
3957 	ha->init_cb_dma);
3958 	ha->init_cb = NULL;
3959 	ha->init_cb_dma = 0;
3960 fail:
3961 	ql_log(ql_log_fatal, NULL, 0x0030,
3962 	    "Memory allocation failure.\n");
3963 	return -ENOMEM;
3964 }
3965 
3966 int
3967 qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha)
3968 {
3969 	int rval;
3970 	uint16_t	size, max_cnt, temp;
3971 	struct qla_hw_data *ha = vha->hw;
3972 
3973 	/* Return if we don't need to alloacate any extended logins */
3974 	if (!ql2xexlogins)
3975 		return QLA_SUCCESS;
3976 
3977 	ql_log(ql_log_info, vha, 0xd021, "EXLOGIN count: %d.\n", ql2xexlogins);
3978 	max_cnt = 0;
3979 	rval = qla_get_exlogin_status(vha, &size, &max_cnt);
3980 	if (rval != QLA_SUCCESS) {
3981 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd029,
3982 		    "Failed to get exlogin status.\n");
3983 		return rval;
3984 	}
3985 
3986 	temp = (ql2xexlogins > max_cnt) ? max_cnt : ql2xexlogins;
3987 	ha->exlogin_size = (size * temp);
3988 	ql_log(ql_log_info, vha, 0xd024,
3989 		"EXLOGIN: max_logins=%d, portdb=0x%x, total=%d.\n",
3990 		max_cnt, size, temp);
3991 
3992 	ql_log(ql_log_info, vha, 0xd025, "EXLOGIN: requested size=0x%x\n",
3993 		ha->exlogin_size);
3994 
3995 	/* Get consistent memory for extended logins */
3996 	ha->exlogin_buf = dma_alloc_coherent(&ha->pdev->dev,
3997 	    ha->exlogin_size, &ha->exlogin_buf_dma, GFP_KERNEL);
3998 	if (!ha->exlogin_buf) {
3999 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd02a,
4000 		    "Failed to allocate memory for exlogin_buf_dma.\n");
4001 		return -ENOMEM;
4002 	}
4003 
4004 	/* Now configure the dma buffer */
4005 	rval = qla_set_exlogin_mem_cfg(vha, ha->exlogin_buf_dma);
4006 	if (rval) {
4007 		ql_log(ql_log_fatal, vha, 0x00cf,
4008 		    "Setup extended login buffer  ****FAILED****.\n");
4009 		qla2x00_free_exlogin_buffer(ha);
4010 	}
4011 
4012 	return rval;
4013 }
4014 
4015 /*
4016 * qla2x00_free_exlogin_buffer
4017 *
4018 * Input:
4019 *	ha = adapter block pointer
4020 */
4021 void
4022 qla2x00_free_exlogin_buffer(struct qla_hw_data *ha)
4023 {
4024 	if (ha->exlogin_buf) {
4025 		dma_free_coherent(&ha->pdev->dev, ha->exlogin_size,
4026 		    ha->exlogin_buf, ha->exlogin_buf_dma);
4027 		ha->exlogin_buf = NULL;
4028 		ha->exlogin_size = 0;
4029 	}
4030 }
4031 
4032 int
4033 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
4034 {
4035 	int rval;
4036 	uint16_t	size, max_cnt, temp;
4037 	struct qla_hw_data *ha = vha->hw;
4038 
4039 	/* Return if we don't need to alloacate any extended logins */
4040 	if (!ql2xexchoffld)
4041 		return QLA_SUCCESS;
4042 
4043 	ql_log(ql_log_info, vha, 0xd014,
4044 	    "Exchange offload count: %d.\n", ql2xexlogins);
4045 
4046 	max_cnt = 0;
4047 	rval = qla_get_exchoffld_status(vha, &size, &max_cnt);
4048 	if (rval != QLA_SUCCESS) {
4049 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd012,
4050 		    "Failed to get exlogin status.\n");
4051 		return rval;
4052 	}
4053 
4054 	temp = (ql2xexchoffld > max_cnt) ? max_cnt : ql2xexchoffld;
4055 	ha->exchoffld_size = (size * temp);
4056 	ql_log(ql_log_info, vha, 0xd016,
4057 		"Exchange offload: max_count=%d, buffers=0x%x, total=%d.\n",
4058 		max_cnt, size, temp);
4059 
4060 	ql_log(ql_log_info, vha, 0xd017,
4061 	    "Exchange Buffers requested size = 0x%x\n", ha->exchoffld_size);
4062 
4063 	/* Get consistent memory for extended logins */
4064 	ha->exchoffld_buf = dma_alloc_coherent(&ha->pdev->dev,
4065 	    ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
4066 	if (!ha->exchoffld_buf) {
4067 		ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
4068 		    "Failed to allocate memory for exchoffld_buf_dma.\n");
4069 		return -ENOMEM;
4070 	}
4071 
4072 	/* Now configure the dma buffer */
4073 	rval = qla_set_exchoffld_mem_cfg(vha, ha->exchoffld_buf_dma);
4074 	if (rval) {
4075 		ql_log(ql_log_fatal, vha, 0xd02e,
4076 		    "Setup exchange offload buffer ****FAILED****.\n");
4077 		qla2x00_free_exchoffld_buffer(ha);
4078 	}
4079 
4080 	return rval;
4081 }
4082 
4083 /*
4084 * qla2x00_free_exchoffld_buffer
4085 *
4086 * Input:
4087 *	ha = adapter block pointer
4088 */
4089 void
4090 qla2x00_free_exchoffld_buffer(struct qla_hw_data *ha)
4091 {
4092 	if (ha->exchoffld_buf) {
4093 		dma_free_coherent(&ha->pdev->dev, ha->exchoffld_size,
4094 		    ha->exchoffld_buf, ha->exchoffld_buf_dma);
4095 		ha->exchoffld_buf = NULL;
4096 		ha->exchoffld_size = 0;
4097 	}
4098 }
4099 
4100 /*
4101 * qla2x00_free_fw_dump
4102 *	Frees fw dump stuff.
4103 *
4104 * Input:
4105 *	ha = adapter block pointer
4106 */
4107 static void
4108 qla2x00_free_fw_dump(struct qla_hw_data *ha)
4109 {
4110 	if (ha->fce)
4111 		dma_free_coherent(&ha->pdev->dev,
4112 		    FCE_SIZE, ha->fce, ha->fce_dma);
4113 
4114 	if (ha->eft)
4115 		dma_free_coherent(&ha->pdev->dev,
4116 		    EFT_SIZE, ha->eft, ha->eft_dma);
4117 
4118 	if (ha->fw_dump)
4119 		vfree(ha->fw_dump);
4120 	if (ha->fw_dump_template)
4121 		vfree(ha->fw_dump_template);
4122 
4123 	ha->fce = NULL;
4124 	ha->fce_dma = 0;
4125 	ha->eft = NULL;
4126 	ha->eft_dma = 0;
4127 	ha->fw_dumped = 0;
4128 	ha->fw_dump_cap_flags = 0;
4129 	ha->fw_dump_reading = 0;
4130 	ha->fw_dump = NULL;
4131 	ha->fw_dump_len = 0;
4132 	ha->fw_dump_template = NULL;
4133 	ha->fw_dump_template_len = 0;
4134 }
4135 
4136 /*
4137 * qla2x00_mem_free
4138 *      Frees all adapter allocated memory.
4139 *
4140 * Input:
4141 *      ha = adapter block pointer.
4142 */
4143 static void
4144 qla2x00_mem_free(struct qla_hw_data *ha)
4145 {
4146 	qla2x00_free_fw_dump(ha);
4147 
4148 	if (ha->mctp_dump)
4149 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
4150 		    ha->mctp_dump_dma);
4151 
4152 	if (ha->srb_mempool)
4153 		mempool_destroy(ha->srb_mempool);
4154 
4155 	if (ha->dcbx_tlv)
4156 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
4157 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
4158 
4159 	if (ha->xgmac_data)
4160 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
4161 		    ha->xgmac_data, ha->xgmac_data_dma);
4162 
4163 	if (ha->sns_cmd)
4164 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
4165 		ha->sns_cmd, ha->sns_cmd_dma);
4166 
4167 	if (ha->ct_sns)
4168 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
4169 		ha->ct_sns, ha->ct_sns_dma);
4170 
4171 	if (ha->sfp_data)
4172 		dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
4173 
4174 	if (ha->ms_iocb)
4175 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
4176 
4177 	if (ha->ex_init_cb)
4178 		dma_pool_free(ha->s_dma_pool,
4179 			ha->ex_init_cb, ha->ex_init_cb_dma);
4180 
4181 	if (ha->async_pd)
4182 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
4183 
4184 	if (ha->s_dma_pool)
4185 		dma_pool_destroy(ha->s_dma_pool);
4186 
4187 	if (ha->gid_list)
4188 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
4189 		ha->gid_list, ha->gid_list_dma);
4190 
4191 	if (IS_QLA82XX(ha)) {
4192 		if (!list_empty(&ha->gbl_dsd_list)) {
4193 			struct dsd_dma *dsd_ptr, *tdsd_ptr;
4194 
4195 			/* clean up allocated prev pool */
4196 			list_for_each_entry_safe(dsd_ptr,
4197 				tdsd_ptr, &ha->gbl_dsd_list, list) {
4198 				dma_pool_free(ha->dl_dma_pool,
4199 				dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
4200 				list_del(&dsd_ptr->list);
4201 				kfree(dsd_ptr);
4202 			}
4203 		}
4204 	}
4205 
4206 	if (ha->dl_dma_pool)
4207 		dma_pool_destroy(ha->dl_dma_pool);
4208 
4209 	if (ha->fcp_cmnd_dma_pool)
4210 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
4211 
4212 	if (ha->ctx_mempool)
4213 		mempool_destroy(ha->ctx_mempool);
4214 
4215 	qlt_mem_free(ha);
4216 
4217 	if (ha->init_cb)
4218 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
4219 			ha->init_cb, ha->init_cb_dma);
4220 	vfree(ha->optrom_buffer);
4221 	kfree(ha->nvram);
4222 	kfree(ha->npiv_info);
4223 	kfree(ha->swl);
4224 	kfree(ha->loop_id_map);
4225 
4226 	ha->srb_mempool = NULL;
4227 	ha->ctx_mempool = NULL;
4228 	ha->sns_cmd = NULL;
4229 	ha->sns_cmd_dma = 0;
4230 	ha->ct_sns = NULL;
4231 	ha->ct_sns_dma = 0;
4232 	ha->ms_iocb = NULL;
4233 	ha->ms_iocb_dma = 0;
4234 	ha->init_cb = NULL;
4235 	ha->init_cb_dma = 0;
4236 	ha->ex_init_cb = NULL;
4237 	ha->ex_init_cb_dma = 0;
4238 	ha->async_pd = NULL;
4239 	ha->async_pd_dma = 0;
4240 
4241 	ha->s_dma_pool = NULL;
4242 	ha->dl_dma_pool = NULL;
4243 	ha->fcp_cmnd_dma_pool = NULL;
4244 
4245 	ha->gid_list = NULL;
4246 	ha->gid_list_dma = 0;
4247 
4248 	ha->tgt.atio_ring = NULL;
4249 	ha->tgt.atio_dma = 0;
4250 	ha->tgt.tgt_vp_map = NULL;
4251 }
4252 
4253 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
4254 						struct qla_hw_data *ha)
4255 {
4256 	struct Scsi_Host *host;
4257 	struct scsi_qla_host *vha = NULL;
4258 
4259 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
4260 	if (!host) {
4261 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
4262 		    "Failed to allocate host from the scsi layer, aborting.\n");
4263 		return NULL;
4264 	}
4265 
4266 	/* Clear our data area */
4267 	vha = shost_priv(host);
4268 	memset(vha, 0, sizeof(scsi_qla_host_t));
4269 
4270 	vha->host = host;
4271 	vha->host_no = host->host_no;
4272 	vha->hw = ha;
4273 
4274 	INIT_LIST_HEAD(&vha->vp_fcports);
4275 	INIT_LIST_HEAD(&vha->work_list);
4276 	INIT_LIST_HEAD(&vha->list);
4277 	INIT_LIST_HEAD(&vha->qla_cmd_list);
4278 	INIT_LIST_HEAD(&vha->qla_sess_op_cmd_list);
4279 	INIT_LIST_HEAD(&vha->logo_list);
4280 	INIT_LIST_HEAD(&vha->plogi_ack_list);
4281 	INIT_LIST_HEAD(&vha->qp_list);
4282 	INIT_LIST_HEAD(&vha->gnl.fcports);
4283 
4284 	spin_lock_init(&vha->work_lock);
4285 	spin_lock_init(&vha->cmd_list_lock);
4286 	init_waitqueue_head(&vha->fcport_waitQ);
4287 	init_waitqueue_head(&vha->vref_waitq);
4288 
4289 	vha->gnl.size = sizeof(struct get_name_list_extended) *
4290 			(ha->max_loop_id + 1);
4291 	vha->gnl.l = dma_alloc_coherent(&ha->pdev->dev,
4292 	    vha->gnl.size, &vha->gnl.ldma, GFP_KERNEL);
4293 	if (!vha->gnl.l) {
4294 		ql_log(ql_log_fatal, vha, 0xffff,
4295 		    "Alloc failed for name list.\n");
4296 		scsi_remove_host(vha->host);
4297 		return NULL;
4298 	}
4299 
4300 	sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
4301 	ql_dbg(ql_dbg_init, vha, 0x0041,
4302 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
4303 	    vha->host, vha->hw, vha,
4304 	    dev_name(&(ha->pdev->dev)));
4305 
4306 	return vha;
4307 }
4308 
4309 struct qla_work_evt *
4310 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
4311 {
4312 	struct qla_work_evt *e;
4313 	uint8_t bail;
4314 
4315 	QLA_VHA_MARK_BUSY(vha, bail);
4316 	if (bail)
4317 		return NULL;
4318 
4319 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
4320 	if (!e) {
4321 		QLA_VHA_MARK_NOT_BUSY(vha);
4322 		return NULL;
4323 	}
4324 
4325 	INIT_LIST_HEAD(&e->list);
4326 	e->type = type;
4327 	e->flags = QLA_EVT_FLAG_FREE;
4328 	return e;
4329 }
4330 
4331 int
4332 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
4333 {
4334 	unsigned long flags;
4335 
4336 	spin_lock_irqsave(&vha->work_lock, flags);
4337 	list_add_tail(&e->list, &vha->work_list);
4338 	spin_unlock_irqrestore(&vha->work_lock, flags);
4339 
4340 	if (QLA_EARLY_LINKUP(vha->hw))
4341 		schedule_work(&vha->iocb_work);
4342 	else
4343 		qla2xxx_wake_dpc(vha);
4344 
4345 	return QLA_SUCCESS;
4346 }
4347 
4348 int
4349 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
4350     u32 data)
4351 {
4352 	struct qla_work_evt *e;
4353 
4354 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
4355 	if (!e)
4356 		return QLA_FUNCTION_FAILED;
4357 
4358 	e->u.aen.code = code;
4359 	e->u.aen.data = data;
4360 	return qla2x00_post_work(vha, e);
4361 }
4362 
4363 int
4364 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
4365 {
4366 	struct qla_work_evt *e;
4367 
4368 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
4369 	if (!e)
4370 		return QLA_FUNCTION_FAILED;
4371 
4372 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
4373 	return qla2x00_post_work(vha, e);
4374 }
4375 
4376 #define qla2x00_post_async_work(name, type)	\
4377 int qla2x00_post_async_##name##_work(		\
4378     struct scsi_qla_host *vha,			\
4379     fc_port_t *fcport, uint16_t *data)		\
4380 {						\
4381 	struct qla_work_evt *e;			\
4382 						\
4383 	e = qla2x00_alloc_work(vha, type);	\
4384 	if (!e)					\
4385 		return QLA_FUNCTION_FAILED;	\
4386 						\
4387 	e->u.logio.fcport = fcport;		\
4388 	if (data) {				\
4389 		e->u.logio.data[0] = data[0];	\
4390 		e->u.logio.data[1] = data[1];	\
4391 	}					\
4392 	return qla2x00_post_work(vha, e);	\
4393 }
4394 
4395 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
4396 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
4397 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
4398 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
4399 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
4400 
4401 int
4402 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
4403 {
4404 	struct qla_work_evt *e;
4405 
4406 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
4407 	if (!e)
4408 		return QLA_FUNCTION_FAILED;
4409 
4410 	e->u.uevent.code = code;
4411 	return qla2x00_post_work(vha, e);
4412 }
4413 
4414 static void
4415 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
4416 {
4417 	char event_string[40];
4418 	char *envp[] = { event_string, NULL };
4419 
4420 	switch (code) {
4421 	case QLA_UEVENT_CODE_FW_DUMP:
4422 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
4423 		    vha->host_no);
4424 		break;
4425 	default:
4426 		/* do nothing */
4427 		break;
4428 	}
4429 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
4430 }
4431 
4432 int
4433 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
4434 			uint32_t *data, int cnt)
4435 {
4436 	struct qla_work_evt *e;
4437 
4438 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
4439 	if (!e)
4440 		return QLA_FUNCTION_FAILED;
4441 
4442 	e->u.aenfx.evtcode = evtcode;
4443 	e->u.aenfx.count = cnt;
4444 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
4445 	return qla2x00_post_work(vha, e);
4446 }
4447 
4448 int qla24xx_post_upd_fcport_work(struct scsi_qla_host *vha, fc_port_t *fcport)
4449 {
4450 	struct qla_work_evt *e;
4451 
4452 	e = qla2x00_alloc_work(vha, QLA_EVT_UPD_FCPORT);
4453 	if (!e)
4454 		return QLA_FUNCTION_FAILED;
4455 
4456 	e->u.fcport.fcport = fcport;
4457 	return qla2x00_post_work(vha, e);
4458 }
4459 
4460 static
4461 void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
4462 {
4463 	unsigned long flags;
4464 	fc_port_t *fcport =  NULL;
4465 	struct qlt_plogi_ack_t *pla =
4466 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
4467 
4468 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4469 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
4470 	if (fcport) {
4471 		fcport->d_id = e->u.new_sess.id;
4472 		if (pla) {
4473 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
4474 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
4475 			/* we took an extra ref_count to prevent PLOGI ACK when
4476 			 * fcport/sess has not been created.
4477 			 */
4478 			pla->ref_count--;
4479 		}
4480 	} else {
4481 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
4482 		if (fcport) {
4483 			fcport->d_id = e->u.new_sess.id;
4484 			fcport->scan_state = QLA_FCPORT_FOUND;
4485 			fcport->flags |= FCF_FABRIC_DEVICE;
4486 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
4487 
4488 			memcpy(fcport->port_name, e->u.new_sess.port_name,
4489 			    WWN_SIZE);
4490 			list_add_tail(&fcport->list, &vha->vp_fcports);
4491 
4492 			if (pla) {
4493 				qlt_plogi_ack_link(vha, pla, fcport,
4494 				    QLT_PLOGI_LINK_SAME_WWN);
4495 				pla->ref_count--;
4496 			}
4497 		}
4498 	}
4499 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4500 
4501 	if (fcport) {
4502 		if (pla)
4503 			qlt_plogi_ack_unref(vha, pla);
4504 		else
4505 			qla24xx_async_gnl(vha, fcport);
4506 	}
4507 }
4508 
4509 void
4510 qla2x00_do_work(struct scsi_qla_host *vha)
4511 {
4512 	struct qla_work_evt *e, *tmp;
4513 	unsigned long flags;
4514 	LIST_HEAD(work);
4515 
4516 	spin_lock_irqsave(&vha->work_lock, flags);
4517 	list_splice_init(&vha->work_list, &work);
4518 	spin_unlock_irqrestore(&vha->work_lock, flags);
4519 
4520 	list_for_each_entry_safe(e, tmp, &work, list) {
4521 		list_del_init(&e->list);
4522 
4523 		switch (e->type) {
4524 		case QLA_EVT_AEN:
4525 			fc_host_post_event(vha->host, fc_get_event_number(),
4526 			    e->u.aen.code, e->u.aen.data);
4527 			break;
4528 		case QLA_EVT_IDC_ACK:
4529 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
4530 			break;
4531 		case QLA_EVT_ASYNC_LOGIN:
4532 			qla2x00_async_login(vha, e->u.logio.fcport,
4533 			    e->u.logio.data);
4534 			break;
4535 		case QLA_EVT_ASYNC_LOGOUT:
4536 			qla2x00_async_logout(vha, e->u.logio.fcport);
4537 			break;
4538 		case QLA_EVT_ASYNC_LOGOUT_DONE:
4539 			qla2x00_async_logout_done(vha, e->u.logio.fcport,
4540 			    e->u.logio.data);
4541 			break;
4542 		case QLA_EVT_ASYNC_ADISC:
4543 			qla2x00_async_adisc(vha, e->u.logio.fcport,
4544 			    e->u.logio.data);
4545 			break;
4546 		case QLA_EVT_ASYNC_ADISC_DONE:
4547 			qla2x00_async_adisc_done(vha, e->u.logio.fcport,
4548 			    e->u.logio.data);
4549 			break;
4550 		case QLA_EVT_UEVENT:
4551 			qla2x00_uevent_emit(vha, e->u.uevent.code);
4552 			break;
4553 		case QLA_EVT_AENFX:
4554 			qlafx00_process_aen(vha, e);
4555 			break;
4556 		case QLA_EVT_GIDPN:
4557 			qla24xx_async_gidpn(vha, e->u.fcport.fcport);
4558 			break;
4559 		case QLA_EVT_GPNID:
4560 			qla24xx_async_gpnid(vha, &e->u.gpnid.id);
4561 			break;
4562 		case QLA_EVT_GPNID_DONE:
4563 			qla24xx_async_gpnid_done(vha, e->u.iosb.sp);
4564 			break;
4565 		case QLA_EVT_NEW_SESS:
4566 			qla24xx_create_new_sess(vha, e);
4567 			break;
4568 		case QLA_EVT_GPDB:
4569 			qla24xx_async_gpdb(vha, e->u.fcport.fcport,
4570 			    e->u.fcport.opt);
4571 			break;
4572 		case QLA_EVT_GPSC:
4573 			qla24xx_async_gpsc(vha, e->u.fcport.fcport);
4574 			break;
4575 		case QLA_EVT_UPD_FCPORT:
4576 			qla2x00_update_fcport(vha, e->u.fcport.fcport);
4577 			break;
4578 		case QLA_EVT_GNL:
4579 			qla24xx_async_gnl(vha, e->u.fcport.fcport);
4580 			break;
4581 		case QLA_EVT_NACK:
4582 			qla24xx_do_nack_work(vha, e);
4583 			break;
4584 		}
4585 		if (e->flags & QLA_EVT_FLAG_FREE)
4586 			kfree(e);
4587 
4588 		/* For each work completed decrement vha ref count */
4589 		QLA_VHA_MARK_NOT_BUSY(vha);
4590 	}
4591 }
4592 
4593 /* Relogins all the fcports of a vport
4594  * Context: dpc thread
4595  */
4596 void qla2x00_relogin(struct scsi_qla_host *vha)
4597 {
4598 	fc_port_t       *fcport;
4599 	int status;
4600 	struct event_arg ea;
4601 
4602 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4603 	/*
4604 	 * If the port is not ONLINE then try to login
4605 	 * to it if we haven't run out of retries.
4606 	 */
4607 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
4608 		    fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
4609 			fcport->login_retry--;
4610 			if (fcport->flags & FCF_FABRIC_DEVICE) {
4611 				ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
4612 				    "%s %8phC DS %d LS %d\n", __func__,
4613 				    fcport->port_name, fcport->disc_state,
4614 				    fcport->fw_login_state);
4615 				memset(&ea, 0, sizeof(ea));
4616 				ea.event = FCME_RELOGIN;
4617 				ea.fcport = fcport;
4618 				qla2x00_fcport_event_handler(vha, &ea);
4619 			} else {
4620 				status = qla2x00_local_device_login(vha,
4621 								fcport);
4622 				if (status == QLA_SUCCESS) {
4623 					fcport->old_loop_id = fcport->loop_id;
4624 					ql_dbg(ql_dbg_disc, vha, 0x2003,
4625 					    "Port login OK: logged in ID 0x%x.\n",
4626 					    fcport->loop_id);
4627 					qla2x00_update_fcport(vha, fcport);
4628 				} else if (status == 1) {
4629 					set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4630 					/* retry the login again */
4631 					ql_dbg(ql_dbg_disc, vha, 0x2007,
4632 					    "Retrying %d login again loop_id 0x%x.\n",
4633 					    fcport->login_retry,
4634 					    fcport->loop_id);
4635 				} else {
4636 					fcport->login_retry = 0;
4637 				}
4638 
4639 				if (fcport->login_retry == 0 &&
4640 				    status != QLA_SUCCESS)
4641 					qla2x00_clear_loop_id(fcport);
4642 			}
4643 		}
4644 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
4645 			break;
4646 	}
4647 }
4648 
4649 /* Schedule work on any of the dpc-workqueues */
4650 void
4651 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
4652 {
4653 	struct qla_hw_data *ha = base_vha->hw;
4654 
4655 	switch (work_code) {
4656 	case MBA_IDC_AEN: /* 0x8200 */
4657 		if (ha->dpc_lp_wq)
4658 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
4659 		break;
4660 
4661 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
4662 		if (!ha->flags.nic_core_reset_hdlr_active) {
4663 			if (ha->dpc_hp_wq)
4664 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
4665 		} else
4666 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
4667 			    "NIC Core reset is already active. Skip "
4668 			    "scheduling it again.\n");
4669 		break;
4670 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
4671 		if (ha->dpc_hp_wq)
4672 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
4673 		break;
4674 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
4675 		if (ha->dpc_hp_wq)
4676 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
4677 		break;
4678 	default:
4679 		ql_log(ql_log_warn, base_vha, 0xb05f,
4680 		    "Unknown work-code=0x%x.\n", work_code);
4681 	}
4682 
4683 	return;
4684 }
4685 
4686 /* Work: Perform NIC Core Unrecoverable state handling */
4687 void
4688 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
4689 {
4690 	struct qla_hw_data *ha =
4691 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
4692 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4693 	uint32_t dev_state = 0;
4694 
4695 	qla83xx_idc_lock(base_vha, 0);
4696 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4697 	qla83xx_reset_ownership(base_vha);
4698 	if (ha->flags.nic_core_reset_owner) {
4699 		ha->flags.nic_core_reset_owner = 0;
4700 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4701 		    QLA8XXX_DEV_FAILED);
4702 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
4703 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4704 	}
4705 	qla83xx_idc_unlock(base_vha, 0);
4706 }
4707 
4708 /* Work: Execute IDC state handler */
4709 void
4710 qla83xx_idc_state_handler_work(struct work_struct *work)
4711 {
4712 	struct qla_hw_data *ha =
4713 		container_of(work, struct qla_hw_data, idc_state_handler);
4714 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4715 	uint32_t dev_state = 0;
4716 
4717 	qla83xx_idc_lock(base_vha, 0);
4718 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4719 	if (dev_state == QLA8XXX_DEV_FAILED ||
4720 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
4721 		qla83xx_idc_state_handler(base_vha);
4722 	qla83xx_idc_unlock(base_vha, 0);
4723 }
4724 
4725 static int
4726 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
4727 {
4728 	int rval = QLA_SUCCESS;
4729 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
4730 	uint32_t heart_beat_counter1, heart_beat_counter2;
4731 
4732 	do {
4733 		if (time_after(jiffies, heart_beat_wait)) {
4734 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
4735 			    "Nic Core f/w is not alive.\n");
4736 			rval = QLA_FUNCTION_FAILED;
4737 			break;
4738 		}
4739 
4740 		qla83xx_idc_lock(base_vha, 0);
4741 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4742 		    &heart_beat_counter1);
4743 		qla83xx_idc_unlock(base_vha, 0);
4744 		msleep(100);
4745 		qla83xx_idc_lock(base_vha, 0);
4746 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4747 		    &heart_beat_counter2);
4748 		qla83xx_idc_unlock(base_vha, 0);
4749 	} while (heart_beat_counter1 == heart_beat_counter2);
4750 
4751 	return rval;
4752 }
4753 
4754 /* Work: Perform NIC Core Reset handling */
4755 void
4756 qla83xx_nic_core_reset_work(struct work_struct *work)
4757 {
4758 	struct qla_hw_data *ha =
4759 		container_of(work, struct qla_hw_data, nic_core_reset);
4760 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4761 	uint32_t dev_state = 0;
4762 
4763 	if (IS_QLA2031(ha)) {
4764 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
4765 			ql_log(ql_log_warn, base_vha, 0xb081,
4766 			    "Failed to dump mctp\n");
4767 		return;
4768 	}
4769 
4770 	if (!ha->flags.nic_core_reset_hdlr_active) {
4771 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
4772 			qla83xx_idc_lock(base_vha, 0);
4773 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4774 			    &dev_state);
4775 			qla83xx_idc_unlock(base_vha, 0);
4776 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
4777 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
4778 				    "Nic Core f/w is alive.\n");
4779 				return;
4780 			}
4781 		}
4782 
4783 		ha->flags.nic_core_reset_hdlr_active = 1;
4784 		if (qla83xx_nic_core_reset(base_vha)) {
4785 			/* NIC Core reset failed. */
4786 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
4787 			    "NIC Core reset failed.\n");
4788 		}
4789 		ha->flags.nic_core_reset_hdlr_active = 0;
4790 	}
4791 }
4792 
4793 /* Work: Handle 8200 IDC aens */
4794 void
4795 qla83xx_service_idc_aen(struct work_struct *work)
4796 {
4797 	struct qla_hw_data *ha =
4798 		container_of(work, struct qla_hw_data, idc_aen);
4799 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4800 	uint32_t dev_state, idc_control;
4801 
4802 	qla83xx_idc_lock(base_vha, 0);
4803 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4804 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
4805 	qla83xx_idc_unlock(base_vha, 0);
4806 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
4807 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
4808 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
4809 			    "Application requested NIC Core Reset.\n");
4810 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4811 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
4812 		    QLA_SUCCESS) {
4813 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
4814 			    "Other protocol driver requested NIC Core Reset.\n");
4815 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4816 		}
4817 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
4818 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
4819 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4820 	}
4821 }
4822 
4823 static void
4824 qla83xx_wait_logic(void)
4825 {
4826 	int i;
4827 
4828 	/* Yield CPU */
4829 	if (!in_interrupt()) {
4830 		/*
4831 		 * Wait about 200ms before retrying again.
4832 		 * This controls the number of retries for single
4833 		 * lock operation.
4834 		 */
4835 		msleep(100);
4836 		schedule();
4837 	} else {
4838 		for (i = 0; i < 20; i++)
4839 			cpu_relax(); /* This a nop instr on i386 */
4840 	}
4841 }
4842 
4843 static int
4844 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
4845 {
4846 	int rval;
4847 	uint32_t data;
4848 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
4849 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
4850 	struct qla_hw_data *ha = base_vha->hw;
4851 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
4852 	    "Trying force recovery of the IDC lock.\n");
4853 
4854 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
4855 	if (rval)
4856 		return rval;
4857 
4858 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
4859 		return QLA_SUCCESS;
4860 	} else {
4861 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
4862 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4863 		    data);
4864 		if (rval)
4865 			return rval;
4866 
4867 		msleep(200);
4868 
4869 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4870 		    &data);
4871 		if (rval)
4872 			return rval;
4873 
4874 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
4875 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
4876 					~(idc_lck_rcvry_stage_mask));
4877 			rval = qla83xx_wr_reg(base_vha,
4878 			    QLA83XX_IDC_LOCK_RECOVERY, data);
4879 			if (rval)
4880 				return rval;
4881 
4882 			/* Forcefully perform IDC UnLock */
4883 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
4884 			    &data);
4885 			if (rval)
4886 				return rval;
4887 			/* Clear lock-id by setting 0xff */
4888 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4889 			    0xff);
4890 			if (rval)
4891 				return rval;
4892 			/* Clear lock-recovery by setting 0x0 */
4893 			rval = qla83xx_wr_reg(base_vha,
4894 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
4895 			if (rval)
4896 				return rval;
4897 		} else
4898 			return QLA_SUCCESS;
4899 	}
4900 
4901 	return rval;
4902 }
4903 
4904 static int
4905 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
4906 {
4907 	int rval = QLA_SUCCESS;
4908 	uint32_t o_drv_lockid, n_drv_lockid;
4909 	unsigned long lock_recovery_timeout;
4910 
4911 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
4912 retry_lockid:
4913 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
4914 	if (rval)
4915 		goto exit;
4916 
4917 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
4918 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
4919 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
4920 			return QLA_SUCCESS;
4921 		else
4922 			return QLA_FUNCTION_FAILED;
4923 	}
4924 
4925 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
4926 	if (rval)
4927 		goto exit;
4928 
4929 	if (o_drv_lockid == n_drv_lockid) {
4930 		qla83xx_wait_logic();
4931 		goto retry_lockid;
4932 	} else
4933 		return QLA_SUCCESS;
4934 
4935 exit:
4936 	return rval;
4937 }
4938 
4939 void
4940 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4941 {
4942 	uint16_t options = (requester_id << 15) | BIT_6;
4943 	uint32_t data;
4944 	uint32_t lock_owner;
4945 	struct qla_hw_data *ha = base_vha->hw;
4946 
4947 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
4948 retry_lock:
4949 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
4950 	    == QLA_SUCCESS) {
4951 		if (data) {
4952 			/* Setting lock-id to our function-number */
4953 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4954 			    ha->portnum);
4955 		} else {
4956 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4957 			    &lock_owner);
4958 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
4959 			    "Failed to acquire IDC lock, acquired by %d, "
4960 			    "retrying...\n", lock_owner);
4961 
4962 			/* Retry/Perform IDC-Lock recovery */
4963 			if (qla83xx_idc_lock_recovery(base_vha)
4964 			    == QLA_SUCCESS) {
4965 				qla83xx_wait_logic();
4966 				goto retry_lock;
4967 			} else
4968 				ql_log(ql_log_warn, base_vha, 0xb075,
4969 				    "IDC Lock recovery FAILED.\n");
4970 		}
4971 
4972 	}
4973 
4974 	return;
4975 
4976 	/* XXX: IDC-lock implementation using access-control mbx */
4977 retry_lock2:
4978 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4979 		ql_dbg(ql_dbg_p3p, base_vha, 0xb072,
4980 		    "Failed to acquire IDC lock. retrying...\n");
4981 		/* Retry/Perform IDC-Lock recovery */
4982 		if (qla83xx_idc_lock_recovery(base_vha) == QLA_SUCCESS) {
4983 			qla83xx_wait_logic();
4984 			goto retry_lock2;
4985 		} else
4986 			ql_log(ql_log_warn, base_vha, 0xb076,
4987 			    "IDC Lock recovery FAILED.\n");
4988 	}
4989 
4990 	return;
4991 }
4992 
4993 void
4994 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4995 {
4996 #if 0
4997 	uint16_t options = (requester_id << 15) | BIT_7;
4998 #endif
4999 	uint16_t retry;
5000 	uint32_t data;
5001 	struct qla_hw_data *ha = base_vha->hw;
5002 
5003 	/* IDC-unlock implementation using driver-unlock/lock-id
5004 	 * remote registers
5005 	 */
5006 	retry = 0;
5007 retry_unlock:
5008 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
5009 	    == QLA_SUCCESS) {
5010 		if (data == ha->portnum) {
5011 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
5012 			/* Clearing lock-id by setting 0xff */
5013 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
5014 		} else if (retry < 10) {
5015 			/* SV: XXX: IDC unlock retrying needed here? */
5016 
5017 			/* Retry for IDC-unlock */
5018 			qla83xx_wait_logic();
5019 			retry++;
5020 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
5021 			    "Failed to release IDC lock, retrying=%d\n", retry);
5022 			goto retry_unlock;
5023 		}
5024 	} else if (retry < 10) {
5025 		/* Retry for IDC-unlock */
5026 		qla83xx_wait_logic();
5027 		retry++;
5028 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
5029 		    "Failed to read drv-lockid, retrying=%d\n", retry);
5030 		goto retry_unlock;
5031 	}
5032 
5033 	return;
5034 
5035 #if 0
5036 	/* XXX: IDC-unlock implementation using access-control mbx */
5037 	retry = 0;
5038 retry_unlock2:
5039 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
5040 		if (retry < 10) {
5041 			/* Retry for IDC-unlock */
5042 			qla83xx_wait_logic();
5043 			retry++;
5044 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
5045 			    "Failed to release IDC lock, retrying=%d\n", retry);
5046 			goto retry_unlock2;
5047 		}
5048 	}
5049 
5050 	return;
5051 #endif
5052 }
5053 
5054 int
5055 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
5056 {
5057 	int rval = QLA_SUCCESS;
5058 	struct qla_hw_data *ha = vha->hw;
5059 	uint32_t drv_presence;
5060 
5061 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5062 	if (rval == QLA_SUCCESS) {
5063 		drv_presence |= (1 << ha->portnum);
5064 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
5065 		    drv_presence);
5066 	}
5067 
5068 	return rval;
5069 }
5070 
5071 int
5072 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
5073 {
5074 	int rval = QLA_SUCCESS;
5075 
5076 	qla83xx_idc_lock(vha, 0);
5077 	rval = __qla83xx_set_drv_presence(vha);
5078 	qla83xx_idc_unlock(vha, 0);
5079 
5080 	return rval;
5081 }
5082 
5083 int
5084 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
5085 {
5086 	int rval = QLA_SUCCESS;
5087 	struct qla_hw_data *ha = vha->hw;
5088 	uint32_t drv_presence;
5089 
5090 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5091 	if (rval == QLA_SUCCESS) {
5092 		drv_presence &= ~(1 << ha->portnum);
5093 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
5094 		    drv_presence);
5095 	}
5096 
5097 	return rval;
5098 }
5099 
5100 int
5101 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
5102 {
5103 	int rval = QLA_SUCCESS;
5104 
5105 	qla83xx_idc_lock(vha, 0);
5106 	rval = __qla83xx_clear_drv_presence(vha);
5107 	qla83xx_idc_unlock(vha, 0);
5108 
5109 	return rval;
5110 }
5111 
5112 static void
5113 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
5114 {
5115 	struct qla_hw_data *ha = vha->hw;
5116 	uint32_t drv_ack, drv_presence;
5117 	unsigned long ack_timeout;
5118 
5119 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
5120 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
5121 	while (1) {
5122 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
5123 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5124 		if ((drv_ack & drv_presence) == drv_presence)
5125 			break;
5126 
5127 		if (time_after_eq(jiffies, ack_timeout)) {
5128 			ql_log(ql_log_warn, vha, 0xb067,
5129 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
5130 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
5131 			/*
5132 			 * The function(s) which did not ack in time are forced
5133 			 * to withdraw any further participation in the IDC
5134 			 * reset.
5135 			 */
5136 			if (drv_ack != drv_presence)
5137 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
5138 				    drv_ack);
5139 			break;
5140 		}
5141 
5142 		qla83xx_idc_unlock(vha, 0);
5143 		msleep(1000);
5144 		qla83xx_idc_lock(vha, 0);
5145 	}
5146 
5147 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
5148 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
5149 }
5150 
5151 static int
5152 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
5153 {
5154 	int rval = QLA_SUCCESS;
5155 	uint32_t idc_control;
5156 
5157 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
5158 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
5159 
5160 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
5161 	__qla83xx_get_idc_control(vha, &idc_control);
5162 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
5163 	__qla83xx_set_idc_control(vha, 0);
5164 
5165 	qla83xx_idc_unlock(vha, 0);
5166 	rval = qla83xx_restart_nic_firmware(vha);
5167 	qla83xx_idc_lock(vha, 0);
5168 
5169 	if (rval != QLA_SUCCESS) {
5170 		ql_log(ql_log_fatal, vha, 0xb06a,
5171 		    "Failed to restart NIC f/w.\n");
5172 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
5173 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
5174 	} else {
5175 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
5176 		    "Success in restarting nic f/w.\n");
5177 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
5178 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
5179 	}
5180 
5181 	return rval;
5182 }
5183 
5184 /* Assumes idc_lock always held on entry */
5185 int
5186 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
5187 {
5188 	struct qla_hw_data *ha = base_vha->hw;
5189 	int rval = QLA_SUCCESS;
5190 	unsigned long dev_init_timeout;
5191 	uint32_t dev_state;
5192 
5193 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
5194 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
5195 
5196 	while (1) {
5197 
5198 		if (time_after_eq(jiffies, dev_init_timeout)) {
5199 			ql_log(ql_log_warn, base_vha, 0xb06e,
5200 			    "Initialization TIMEOUT!\n");
5201 			/* Init timeout. Disable further NIC Core
5202 			 * communication.
5203 			 */
5204 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
5205 				QLA8XXX_DEV_FAILED);
5206 			ql_log(ql_log_info, base_vha, 0xb06f,
5207 			    "HW State: FAILED.\n");
5208 		}
5209 
5210 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
5211 		switch (dev_state) {
5212 		case QLA8XXX_DEV_READY:
5213 			if (ha->flags.nic_core_reset_owner)
5214 				qla83xx_idc_audit(base_vha,
5215 				    IDC_AUDIT_COMPLETION);
5216 			ha->flags.nic_core_reset_owner = 0;
5217 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
5218 			    "Reset_owner reset by 0x%x.\n",
5219 			    ha->portnum);
5220 			goto exit;
5221 		case QLA8XXX_DEV_COLD:
5222 			if (ha->flags.nic_core_reset_owner)
5223 				rval = qla83xx_device_bootstrap(base_vha);
5224 			else {
5225 			/* Wait for AEN to change device-state */
5226 				qla83xx_idc_unlock(base_vha, 0);
5227 				msleep(1000);
5228 				qla83xx_idc_lock(base_vha, 0);
5229 			}
5230 			break;
5231 		case QLA8XXX_DEV_INITIALIZING:
5232 			/* Wait for AEN to change device-state */
5233 			qla83xx_idc_unlock(base_vha, 0);
5234 			msleep(1000);
5235 			qla83xx_idc_lock(base_vha, 0);
5236 			break;
5237 		case QLA8XXX_DEV_NEED_RESET:
5238 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
5239 				qla83xx_need_reset_handler(base_vha);
5240 			else {
5241 				/* Wait for AEN to change device-state */
5242 				qla83xx_idc_unlock(base_vha, 0);
5243 				msleep(1000);
5244 				qla83xx_idc_lock(base_vha, 0);
5245 			}
5246 			/* reset timeout value after need reset handler */
5247 			dev_init_timeout = jiffies +
5248 			    (ha->fcoe_dev_init_timeout * HZ);
5249 			break;
5250 		case QLA8XXX_DEV_NEED_QUIESCENT:
5251 			/* XXX: DEBUG for now */
5252 			qla83xx_idc_unlock(base_vha, 0);
5253 			msleep(1000);
5254 			qla83xx_idc_lock(base_vha, 0);
5255 			break;
5256 		case QLA8XXX_DEV_QUIESCENT:
5257 			/* XXX: DEBUG for now */
5258 			if (ha->flags.quiesce_owner)
5259 				goto exit;
5260 
5261 			qla83xx_idc_unlock(base_vha, 0);
5262 			msleep(1000);
5263 			qla83xx_idc_lock(base_vha, 0);
5264 			dev_init_timeout = jiffies +
5265 			    (ha->fcoe_dev_init_timeout * HZ);
5266 			break;
5267 		case QLA8XXX_DEV_FAILED:
5268 			if (ha->flags.nic_core_reset_owner)
5269 				qla83xx_idc_audit(base_vha,
5270 				    IDC_AUDIT_COMPLETION);
5271 			ha->flags.nic_core_reset_owner = 0;
5272 			__qla83xx_clear_drv_presence(base_vha);
5273 			qla83xx_idc_unlock(base_vha, 0);
5274 			qla8xxx_dev_failed_handler(base_vha);
5275 			rval = QLA_FUNCTION_FAILED;
5276 			qla83xx_idc_lock(base_vha, 0);
5277 			goto exit;
5278 		case QLA8XXX_BAD_VALUE:
5279 			qla83xx_idc_unlock(base_vha, 0);
5280 			msleep(1000);
5281 			qla83xx_idc_lock(base_vha, 0);
5282 			break;
5283 		default:
5284 			ql_log(ql_log_warn, base_vha, 0xb071,
5285 			    "Unknown Device State: %x.\n", dev_state);
5286 			qla83xx_idc_unlock(base_vha, 0);
5287 			qla8xxx_dev_failed_handler(base_vha);
5288 			rval = QLA_FUNCTION_FAILED;
5289 			qla83xx_idc_lock(base_vha, 0);
5290 			goto exit;
5291 		}
5292 	}
5293 
5294 exit:
5295 	return rval;
5296 }
5297 
5298 void
5299 qla2x00_disable_board_on_pci_error(struct work_struct *work)
5300 {
5301 	struct qla_hw_data *ha = container_of(work, struct qla_hw_data,
5302 	    board_disable);
5303 	struct pci_dev *pdev = ha->pdev;
5304 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
5305 
5306 	/*
5307 	 * if UNLOAD flag is already set, then continue unload,
5308 	 * where it was set first.
5309 	 */
5310 	if (test_bit(UNLOADING, &base_vha->dpc_flags))
5311 		return;
5312 
5313 	ql_log(ql_log_warn, base_vha, 0x015b,
5314 	    "Disabling adapter.\n");
5315 
5316 	qla2x00_wait_for_sess_deletion(base_vha);
5317 
5318 	set_bit(UNLOADING, &base_vha->dpc_flags);
5319 
5320 	qla2x00_delete_all_vps(ha, base_vha);
5321 
5322 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
5323 
5324 	qla2x00_dfs_remove(base_vha);
5325 
5326 	qla84xx_put_chip(base_vha);
5327 
5328 	if (base_vha->timer_active)
5329 		qla2x00_stop_timer(base_vha);
5330 
5331 	base_vha->flags.online = 0;
5332 
5333 	qla2x00_destroy_deferred_work(ha);
5334 
5335 	/*
5336 	 * Do not try to stop beacon blink as it will issue a mailbox
5337 	 * command.
5338 	 */
5339 	qla2x00_free_sysfs_attr(base_vha, false);
5340 
5341 	fc_remove_host(base_vha->host);
5342 
5343 	scsi_remove_host(base_vha->host);
5344 
5345 	base_vha->flags.init_done = 0;
5346 	qla25xx_delete_queues(base_vha);
5347 	qla2x00_free_fcports(base_vha);
5348 	qla2x00_free_irqs(base_vha);
5349 	qla2x00_mem_free(ha);
5350 	qla82xx_md_free(base_vha);
5351 	qla2x00_free_queues(ha);
5352 
5353 	qla2x00_unmap_iobases(ha);
5354 
5355 	pci_release_selected_regions(ha->pdev, ha->bars);
5356 	pci_disable_pcie_error_reporting(pdev);
5357 	pci_disable_device(pdev);
5358 
5359 	/*
5360 	 * Let qla2x00_remove_one cleanup qla_hw_data on device removal.
5361 	 */
5362 }
5363 
5364 /**************************************************************************
5365 * qla2x00_do_dpc
5366 *   This kernel thread is a task that is schedule by the interrupt handler
5367 *   to perform the background processing for interrupts.
5368 *
5369 * Notes:
5370 * This task always run in the context of a kernel thread.  It
5371 * is kick-off by the driver's detect code and starts up
5372 * up one per adapter. It immediately goes to sleep and waits for
5373 * some fibre event.  When either the interrupt handler or
5374 * the timer routine detects a event it will one of the task
5375 * bits then wake us up.
5376 **************************************************************************/
5377 static int
5378 qla2x00_do_dpc(void *data)
5379 {
5380 	scsi_qla_host_t *base_vha;
5381 	struct qla_hw_data *ha;
5382 	uint32_t online;
5383 	struct qla_qpair *qpair;
5384 
5385 	ha = (struct qla_hw_data *)data;
5386 	base_vha = pci_get_drvdata(ha->pdev);
5387 
5388 	set_user_nice(current, MIN_NICE);
5389 
5390 	set_current_state(TASK_INTERRUPTIBLE);
5391 	while (!kthread_should_stop()) {
5392 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
5393 		    "DPC handler sleeping.\n");
5394 
5395 		schedule();
5396 
5397 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
5398 			goto end_loop;
5399 
5400 		if (ha->flags.eeh_busy) {
5401 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
5402 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
5403 			goto end_loop;
5404 		}
5405 
5406 		ha->dpc_active = 1;
5407 
5408 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
5409 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
5410 		    base_vha->dpc_flags);
5411 
5412 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
5413 			break;
5414 
5415 		qla2x00_do_work(base_vha);
5416 
5417 		if (IS_P3P_TYPE(ha)) {
5418 			if (IS_QLA8044(ha)) {
5419 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
5420 					&base_vha->dpc_flags)) {
5421 					qla8044_idc_lock(ha);
5422 					qla8044_wr_direct(base_vha,
5423 						QLA8044_CRB_DEV_STATE_INDEX,
5424 						QLA8XXX_DEV_FAILED);
5425 					qla8044_idc_unlock(ha);
5426 					ql_log(ql_log_info, base_vha, 0x4004,
5427 						"HW State: FAILED.\n");
5428 					qla8044_device_state_handler(base_vha);
5429 					continue;
5430 				}
5431 
5432 			} else {
5433 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
5434 					&base_vha->dpc_flags)) {
5435 					qla82xx_idc_lock(ha);
5436 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5437 						QLA8XXX_DEV_FAILED);
5438 					qla82xx_idc_unlock(ha);
5439 					ql_log(ql_log_info, base_vha, 0x0151,
5440 						"HW State: FAILED.\n");
5441 					qla82xx_device_state_handler(base_vha);
5442 					continue;
5443 				}
5444 			}
5445 
5446 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
5447 				&base_vha->dpc_flags)) {
5448 
5449 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
5450 				    "FCoE context reset scheduled.\n");
5451 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
5452 					&base_vha->dpc_flags))) {
5453 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
5454 						/* FCoE-ctx reset failed.
5455 						 * Escalate to chip-reset
5456 						 */
5457 						set_bit(ISP_ABORT_NEEDED,
5458 							&base_vha->dpc_flags);
5459 					}
5460 					clear_bit(ABORT_ISP_ACTIVE,
5461 						&base_vha->dpc_flags);
5462 				}
5463 
5464 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
5465 				    "FCoE context reset end.\n");
5466 			}
5467 		} else if (IS_QLAFX00(ha)) {
5468 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
5469 				&base_vha->dpc_flags)) {
5470 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
5471 				    "Firmware Reset Recovery\n");
5472 				if (qlafx00_reset_initialize(base_vha)) {
5473 					/* Failed. Abort isp later. */
5474 					if (!test_bit(UNLOADING,
5475 					    &base_vha->dpc_flags)) {
5476 						set_bit(ISP_UNRECOVERABLE,
5477 						    &base_vha->dpc_flags);
5478 						ql_dbg(ql_dbg_dpc, base_vha,
5479 						    0x4021,
5480 						    "Reset Recovery Failed\n");
5481 					}
5482 				}
5483 			}
5484 
5485 			if (test_and_clear_bit(FX00_TARGET_SCAN,
5486 				&base_vha->dpc_flags)) {
5487 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
5488 				    "ISPFx00 Target Scan scheduled\n");
5489 				if (qlafx00_rescan_isp(base_vha)) {
5490 					if (!test_bit(UNLOADING,
5491 					    &base_vha->dpc_flags))
5492 						set_bit(ISP_UNRECOVERABLE,
5493 						    &base_vha->dpc_flags);
5494 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
5495 					    "ISPFx00 Target Scan Failed\n");
5496 				}
5497 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
5498 				    "ISPFx00 Target Scan End\n");
5499 			}
5500 			if (test_and_clear_bit(FX00_HOST_INFO_RESEND,
5501 				&base_vha->dpc_flags)) {
5502 				ql_dbg(ql_dbg_dpc, base_vha, 0x4023,
5503 				    "ISPFx00 Host Info resend scheduled\n");
5504 				qlafx00_fx_disc(base_vha,
5505 				    &base_vha->hw->mr.fcport,
5506 				    FXDISC_REG_HOST_INFO);
5507 			}
5508 		}
5509 
5510 		if (test_and_clear_bit(ISP_ABORT_NEEDED,
5511 						&base_vha->dpc_flags)) {
5512 
5513 			ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
5514 			    "ISP abort scheduled.\n");
5515 			if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
5516 			    &base_vha->dpc_flags))) {
5517 
5518 				if (ha->isp_ops->abort_isp(base_vha)) {
5519 					/* failed. retry later */
5520 					set_bit(ISP_ABORT_NEEDED,
5521 					    &base_vha->dpc_flags);
5522 				}
5523 				clear_bit(ABORT_ISP_ACTIVE,
5524 						&base_vha->dpc_flags);
5525 			}
5526 
5527 			ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
5528 			    "ISP abort end.\n");
5529 		}
5530 
5531 		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
5532 		    &base_vha->dpc_flags)) {
5533 			qla2x00_update_fcports(base_vha);
5534 		}
5535 
5536 		if (IS_QLAFX00(ha))
5537 			goto loop_resync_check;
5538 
5539 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
5540 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
5541 			    "Quiescence mode scheduled.\n");
5542 			if (IS_P3P_TYPE(ha)) {
5543 				if (IS_QLA82XX(ha))
5544 					qla82xx_device_state_handler(base_vha);
5545 				if (IS_QLA8044(ha))
5546 					qla8044_device_state_handler(base_vha);
5547 				clear_bit(ISP_QUIESCE_NEEDED,
5548 				    &base_vha->dpc_flags);
5549 				if (!ha->flags.quiesce_owner) {
5550 					qla2x00_perform_loop_resync(base_vha);
5551 					if (IS_QLA82XX(ha)) {
5552 						qla82xx_idc_lock(ha);
5553 						qla82xx_clear_qsnt_ready(
5554 						    base_vha);
5555 						qla82xx_idc_unlock(ha);
5556 					} else if (IS_QLA8044(ha)) {
5557 						qla8044_idc_lock(ha);
5558 						qla8044_clear_qsnt_ready(
5559 						    base_vha);
5560 						qla8044_idc_unlock(ha);
5561 					}
5562 				}
5563 			} else {
5564 				clear_bit(ISP_QUIESCE_NEEDED,
5565 				    &base_vha->dpc_flags);
5566 				qla2x00_quiesce_io(base_vha);
5567 			}
5568 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
5569 			    "Quiescence mode end.\n");
5570 		}
5571 
5572 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
5573 				&base_vha->dpc_flags) &&
5574 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
5575 
5576 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
5577 			    "Reset marker scheduled.\n");
5578 			qla2x00_rst_aen(base_vha);
5579 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
5580 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
5581 			    "Reset marker end.\n");
5582 		}
5583 
5584 		/* Retry each device up to login retry count */
5585 		if ((test_and_clear_bit(RELOGIN_NEEDED,
5586 						&base_vha->dpc_flags)) &&
5587 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
5588 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
5589 
5590 			ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
5591 			    "Relogin scheduled.\n");
5592 			qla2x00_relogin(base_vha);
5593 			ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
5594 			    "Relogin end.\n");
5595 		}
5596 loop_resync_check:
5597 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
5598 		    &base_vha->dpc_flags)) {
5599 
5600 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
5601 			    "Loop resync scheduled.\n");
5602 
5603 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
5604 			    &base_vha->dpc_flags))) {
5605 
5606 				qla2x00_loop_resync(base_vha);
5607 
5608 				clear_bit(LOOP_RESYNC_ACTIVE,
5609 						&base_vha->dpc_flags);
5610 			}
5611 
5612 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
5613 			    "Loop resync end.\n");
5614 		}
5615 
5616 		if (IS_QLAFX00(ha))
5617 			goto intr_on_check;
5618 
5619 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
5620 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
5621 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
5622 			qla2xxx_flash_npiv_conf(base_vha);
5623 		}
5624 
5625 intr_on_check:
5626 		if (!ha->interrupts_on)
5627 			ha->isp_ops->enable_intrs(ha);
5628 
5629 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
5630 					&base_vha->dpc_flags)) {
5631 			if (ha->beacon_blink_led == 1)
5632 				ha->isp_ops->beacon_blink(base_vha);
5633 		}
5634 
5635 		/* qpair online check */
5636 		if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
5637 		    &base_vha->dpc_flags)) {
5638 			if (ha->flags.eeh_busy ||
5639 			    ha->flags.pci_channel_io_perm_failure)
5640 				online = 0;
5641 			else
5642 				online = 1;
5643 
5644 			mutex_lock(&ha->mq_lock);
5645 			list_for_each_entry(qpair, &base_vha->qp_list,
5646 			    qp_list_elem)
5647 			qpair->online = online;
5648 			mutex_unlock(&ha->mq_lock);
5649 		}
5650 
5651 		if (!IS_QLAFX00(ha))
5652 			qla2x00_do_dpc_all_vps(base_vha);
5653 
5654 		ha->dpc_active = 0;
5655 end_loop:
5656 		set_current_state(TASK_INTERRUPTIBLE);
5657 	} /* End of while(1) */
5658 	__set_current_state(TASK_RUNNING);
5659 
5660 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
5661 	    "DPC handler exiting.\n");
5662 
5663 	/*
5664 	 * Make sure that nobody tries to wake us up again.
5665 	 */
5666 	ha->dpc_active = 0;
5667 
5668 	/* Cleanup any residual CTX SRBs. */
5669 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
5670 
5671 	return 0;
5672 }
5673 
5674 void
5675 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
5676 {
5677 	struct qla_hw_data *ha = vha->hw;
5678 	struct task_struct *t = ha->dpc_thread;
5679 
5680 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
5681 		wake_up_process(t);
5682 }
5683 
5684 /*
5685 *  qla2x00_rst_aen
5686 *      Processes asynchronous reset.
5687 *
5688 * Input:
5689 *      ha  = adapter block pointer.
5690 */
5691 static void
5692 qla2x00_rst_aen(scsi_qla_host_t *vha)
5693 {
5694 	if (vha->flags.online && !vha->flags.reset_active &&
5695 	    !atomic_read(&vha->loop_down_timer) &&
5696 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
5697 		do {
5698 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5699 
5700 			/*
5701 			 * Issue marker command only when we are going to start
5702 			 * the I/O.
5703 			 */
5704 			vha->marker_needed = 1;
5705 		} while (!atomic_read(&vha->loop_down_timer) &&
5706 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
5707 	}
5708 }
5709 
5710 /**************************************************************************
5711 *   qla2x00_timer
5712 *
5713 * Description:
5714 *   One second timer
5715 *
5716 * Context: Interrupt
5717 ***************************************************************************/
5718 void
5719 qla2x00_timer(scsi_qla_host_t *vha)
5720 {
5721 	unsigned long	cpu_flags = 0;
5722 	int		start_dpc = 0;
5723 	int		index;
5724 	srb_t		*sp;
5725 	uint16_t        w;
5726 	struct qla_hw_data *ha = vha->hw;
5727 	struct req_que *req;
5728 
5729 	if (ha->flags.eeh_busy) {
5730 		ql_dbg(ql_dbg_timer, vha, 0x6000,
5731 		    "EEH = %d, restarting timer.\n",
5732 		    ha->flags.eeh_busy);
5733 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
5734 		return;
5735 	}
5736 
5737 	/*
5738 	 * Hardware read to raise pending EEH errors during mailbox waits. If
5739 	 * the read returns -1 then disable the board.
5740 	 */
5741 	if (!pci_channel_offline(ha->pdev)) {
5742 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
5743 		qla2x00_check_reg16_for_disconnect(vha, w);
5744 	}
5745 
5746 	/* Make sure qla82xx_watchdog is run only for physical port */
5747 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
5748 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
5749 			start_dpc++;
5750 		if (IS_QLA82XX(ha))
5751 			qla82xx_watchdog(vha);
5752 		else if (IS_QLA8044(ha))
5753 			qla8044_watchdog(vha);
5754 	}
5755 
5756 	if (!vha->vp_idx && IS_QLAFX00(ha))
5757 		qlafx00_timer_routine(vha);
5758 
5759 	/* Loop down handler. */
5760 	if (atomic_read(&vha->loop_down_timer) > 0 &&
5761 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
5762 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
5763 		&& vha->flags.online) {
5764 
5765 		if (atomic_read(&vha->loop_down_timer) ==
5766 		    vha->loop_down_abort_time) {
5767 
5768 			ql_log(ql_log_info, vha, 0x6008,
5769 			    "Loop down - aborting the queues before time expires.\n");
5770 
5771 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
5772 				atomic_set(&vha->loop_state, LOOP_DEAD);
5773 
5774 			/*
5775 			 * Schedule an ISP abort to return any FCP2-device
5776 			 * commands.
5777 			 */
5778 			/* NPIV - scan physical port only */
5779 			if (!vha->vp_idx) {
5780 				spin_lock_irqsave(&ha->hardware_lock,
5781 				    cpu_flags);
5782 				req = ha->req_q_map[0];
5783 				for (index = 1;
5784 				    index < req->num_outstanding_cmds;
5785 				    index++) {
5786 					fc_port_t *sfcp;
5787 
5788 					sp = req->outstanding_cmds[index];
5789 					if (!sp)
5790 						continue;
5791 					if (sp->type != SRB_SCSI_CMD)
5792 						continue;
5793 					sfcp = sp->fcport;
5794 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
5795 						continue;
5796 
5797 					if (IS_QLA82XX(ha))
5798 						set_bit(FCOE_CTX_RESET_NEEDED,
5799 							&vha->dpc_flags);
5800 					else
5801 						set_bit(ISP_ABORT_NEEDED,
5802 							&vha->dpc_flags);
5803 					break;
5804 				}
5805 				spin_unlock_irqrestore(&ha->hardware_lock,
5806 								cpu_flags);
5807 			}
5808 			start_dpc++;
5809 		}
5810 
5811 		/* if the loop has been down for 4 minutes, reinit adapter */
5812 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
5813 			if (!(vha->device_flags & DFLG_NO_CABLE)) {
5814 				ql_log(ql_log_warn, vha, 0x6009,
5815 				    "Loop down - aborting ISP.\n");
5816 
5817 				if (IS_QLA82XX(ha))
5818 					set_bit(FCOE_CTX_RESET_NEEDED,
5819 						&vha->dpc_flags);
5820 				else
5821 					set_bit(ISP_ABORT_NEEDED,
5822 						&vha->dpc_flags);
5823 			}
5824 		}
5825 		ql_dbg(ql_dbg_timer, vha, 0x600a,
5826 		    "Loop down - seconds remaining %d.\n",
5827 		    atomic_read(&vha->loop_down_timer));
5828 	}
5829 	/* Check if beacon LED needs to be blinked for physical host only */
5830 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
5831 		/* There is no beacon_blink function for ISP82xx */
5832 		if (!IS_P3P_TYPE(ha)) {
5833 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
5834 			start_dpc++;
5835 		}
5836 	}
5837 
5838 	/* Process any deferred work. */
5839 	if (!list_empty(&vha->work_list))
5840 		start_dpc++;
5841 
5842 	/* Schedule the DPC routine if needed */
5843 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
5844 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
5845 	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
5846 	    start_dpc ||
5847 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
5848 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
5849 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
5850 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
5851 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
5852 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) {
5853 		ql_dbg(ql_dbg_timer, vha, 0x600b,
5854 		    "isp_abort_needed=%d loop_resync_needed=%d "
5855 		    "fcport_update_needed=%d start_dpc=%d "
5856 		    "reset_marker_needed=%d",
5857 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
5858 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
5859 		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
5860 		    start_dpc,
5861 		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
5862 		ql_dbg(ql_dbg_timer, vha, 0x600c,
5863 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
5864 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
5865 		    "relogin_needed=%d.\n",
5866 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
5867 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
5868 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
5869 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
5870 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags));
5871 		qla2xxx_wake_dpc(vha);
5872 	}
5873 
5874 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
5875 }
5876 
5877 /* Firmware interface routines. */
5878 
5879 #define FW_BLOBS	11
5880 #define FW_ISP21XX	0
5881 #define FW_ISP22XX	1
5882 #define FW_ISP2300	2
5883 #define FW_ISP2322	3
5884 #define FW_ISP24XX	4
5885 #define FW_ISP25XX	5
5886 #define FW_ISP81XX	6
5887 #define FW_ISP82XX	7
5888 #define FW_ISP2031	8
5889 #define FW_ISP8031	9
5890 #define FW_ISP27XX	10
5891 
5892 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
5893 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
5894 #define FW_FILE_ISP2300	"ql2300_fw.bin"
5895 #define FW_FILE_ISP2322	"ql2322_fw.bin"
5896 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
5897 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
5898 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
5899 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
5900 #define FW_FILE_ISP2031	"ql2600_fw.bin"
5901 #define FW_FILE_ISP8031	"ql8300_fw.bin"
5902 #define FW_FILE_ISP27XX	"ql2700_fw.bin"
5903 
5904 
5905 static DEFINE_MUTEX(qla_fw_lock);
5906 
5907 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
5908 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
5909 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
5910 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
5911 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5912 	{ .name = FW_FILE_ISP24XX, },
5913 	{ .name = FW_FILE_ISP25XX, },
5914 	{ .name = FW_FILE_ISP81XX, },
5915 	{ .name = FW_FILE_ISP82XX, },
5916 	{ .name = FW_FILE_ISP2031, },
5917 	{ .name = FW_FILE_ISP8031, },
5918 	{ .name = FW_FILE_ISP27XX, },
5919 };
5920 
5921 struct fw_blob *
5922 qla2x00_request_firmware(scsi_qla_host_t *vha)
5923 {
5924 	struct qla_hw_data *ha = vha->hw;
5925 	struct fw_blob *blob;
5926 
5927 	if (IS_QLA2100(ha)) {
5928 		blob = &qla_fw_blobs[FW_ISP21XX];
5929 	} else if (IS_QLA2200(ha)) {
5930 		blob = &qla_fw_blobs[FW_ISP22XX];
5931 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5932 		blob = &qla_fw_blobs[FW_ISP2300];
5933 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5934 		blob = &qla_fw_blobs[FW_ISP2322];
5935 	} else if (IS_QLA24XX_TYPE(ha)) {
5936 		blob = &qla_fw_blobs[FW_ISP24XX];
5937 	} else if (IS_QLA25XX(ha)) {
5938 		blob = &qla_fw_blobs[FW_ISP25XX];
5939 	} else if (IS_QLA81XX(ha)) {
5940 		blob = &qla_fw_blobs[FW_ISP81XX];
5941 	} else if (IS_QLA82XX(ha)) {
5942 		blob = &qla_fw_blobs[FW_ISP82XX];
5943 	} else if (IS_QLA2031(ha)) {
5944 		blob = &qla_fw_blobs[FW_ISP2031];
5945 	} else if (IS_QLA8031(ha)) {
5946 		blob = &qla_fw_blobs[FW_ISP8031];
5947 	} else if (IS_QLA27XX(ha)) {
5948 		blob = &qla_fw_blobs[FW_ISP27XX];
5949 	} else {
5950 		return NULL;
5951 	}
5952 
5953 	mutex_lock(&qla_fw_lock);
5954 	if (blob->fw)
5955 		goto out;
5956 
5957 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
5958 		ql_log(ql_log_warn, vha, 0x0063,
5959 		    "Failed to load firmware image (%s).\n", blob->name);
5960 		blob->fw = NULL;
5961 		blob = NULL;
5962 		goto out;
5963 	}
5964 
5965 out:
5966 	mutex_unlock(&qla_fw_lock);
5967 	return blob;
5968 }
5969 
5970 static void
5971 qla2x00_release_firmware(void)
5972 {
5973 	int idx;
5974 
5975 	mutex_lock(&qla_fw_lock);
5976 	for (idx = 0; idx < FW_BLOBS; idx++)
5977 		release_firmware(qla_fw_blobs[idx].fw);
5978 	mutex_unlock(&qla_fw_lock);
5979 }
5980 
5981 static pci_ers_result_t
5982 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
5983 {
5984 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
5985 	struct qla_hw_data *ha = vha->hw;
5986 
5987 	ql_dbg(ql_dbg_aer, vha, 0x9000,
5988 	    "PCI error detected, state %x.\n", state);
5989 
5990 	switch (state) {
5991 	case pci_channel_io_normal:
5992 		ha->flags.eeh_busy = 0;
5993 		if (ql2xmqsupport) {
5994 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
5995 			qla2xxx_wake_dpc(vha);
5996 		}
5997 		return PCI_ERS_RESULT_CAN_RECOVER;
5998 	case pci_channel_io_frozen:
5999 		ha->flags.eeh_busy = 1;
6000 		/* For ISP82XX complete any pending mailbox cmd */
6001 		if (IS_QLA82XX(ha)) {
6002 			ha->flags.isp82xx_fw_hung = 1;
6003 			ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
6004 			qla82xx_clear_pending_mbx(vha);
6005 		}
6006 		qla2x00_free_irqs(vha);
6007 		pci_disable_device(pdev);
6008 		/* Return back all IOs */
6009 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
6010 		if (ql2xmqsupport) {
6011 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
6012 			qla2xxx_wake_dpc(vha);
6013 		}
6014 		return PCI_ERS_RESULT_NEED_RESET;
6015 	case pci_channel_io_perm_failure:
6016 		ha->flags.pci_channel_io_perm_failure = 1;
6017 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
6018 		if (ql2xmqsupport) {
6019 			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
6020 			qla2xxx_wake_dpc(vha);
6021 		}
6022 		return PCI_ERS_RESULT_DISCONNECT;
6023 	}
6024 	return PCI_ERS_RESULT_NEED_RESET;
6025 }
6026 
6027 static pci_ers_result_t
6028 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
6029 {
6030 	int risc_paused = 0;
6031 	uint32_t stat;
6032 	unsigned long flags;
6033 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
6034 	struct qla_hw_data *ha = base_vha->hw;
6035 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
6036 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
6037 
6038 	if (IS_QLA82XX(ha))
6039 		return PCI_ERS_RESULT_RECOVERED;
6040 
6041 	spin_lock_irqsave(&ha->hardware_lock, flags);
6042 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
6043 		stat = RD_REG_DWORD(&reg->hccr);
6044 		if (stat & HCCR_RISC_PAUSE)
6045 			risc_paused = 1;
6046 	} else if (IS_QLA23XX(ha)) {
6047 		stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
6048 		if (stat & HSR_RISC_PAUSED)
6049 			risc_paused = 1;
6050 	} else if (IS_FWI2_CAPABLE(ha)) {
6051 		stat = RD_REG_DWORD(&reg24->host_status);
6052 		if (stat & HSRX_RISC_PAUSED)
6053 			risc_paused = 1;
6054 	}
6055 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
6056 
6057 	if (risc_paused) {
6058 		ql_log(ql_log_info, base_vha, 0x9003,
6059 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
6060 		ha->isp_ops->fw_dump(base_vha, 0);
6061 
6062 		return PCI_ERS_RESULT_NEED_RESET;
6063 	} else
6064 		return PCI_ERS_RESULT_RECOVERED;
6065 }
6066 
6067 static uint32_t
6068 qla82xx_error_recovery(scsi_qla_host_t *base_vha)
6069 {
6070 	uint32_t rval = QLA_FUNCTION_FAILED;
6071 	uint32_t drv_active = 0;
6072 	struct qla_hw_data *ha = base_vha->hw;
6073 	int fn;
6074 	struct pci_dev *other_pdev = NULL;
6075 
6076 	ql_dbg(ql_dbg_aer, base_vha, 0x9006,
6077 	    "Entered %s.\n", __func__);
6078 
6079 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
6080 
6081 	if (base_vha->flags.online) {
6082 		/* Abort all outstanding commands,
6083 		 * so as to be requeued later */
6084 		qla2x00_abort_isp_cleanup(base_vha);
6085 	}
6086 
6087 
6088 	fn = PCI_FUNC(ha->pdev->devfn);
6089 	while (fn > 0) {
6090 		fn--;
6091 		ql_dbg(ql_dbg_aer, base_vha, 0x9007,
6092 		    "Finding pci device at function = 0x%x.\n", fn);
6093 		other_pdev =
6094 		    pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
6095 		    ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
6096 		    fn));
6097 
6098 		if (!other_pdev)
6099 			continue;
6100 		if (atomic_read(&other_pdev->enable_cnt)) {
6101 			ql_dbg(ql_dbg_aer, base_vha, 0x9008,
6102 			    "Found PCI func available and enable at 0x%x.\n",
6103 			    fn);
6104 			pci_dev_put(other_pdev);
6105 			break;
6106 		}
6107 		pci_dev_put(other_pdev);
6108 	}
6109 
6110 	if (!fn) {
6111 		/* Reset owner */
6112 		ql_dbg(ql_dbg_aer, base_vha, 0x9009,
6113 		    "This devfn is reset owner = 0x%x.\n",
6114 		    ha->pdev->devfn);
6115 		qla82xx_idc_lock(ha);
6116 
6117 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6118 		    QLA8XXX_DEV_INITIALIZING);
6119 
6120 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
6121 		    QLA82XX_IDC_VERSION);
6122 
6123 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
6124 		ql_dbg(ql_dbg_aer, base_vha, 0x900a,
6125 		    "drv_active = 0x%x.\n", drv_active);
6126 
6127 		qla82xx_idc_unlock(ha);
6128 		/* Reset if device is not already reset
6129 		 * drv_active would be 0 if a reset has already been done
6130 		 */
6131 		if (drv_active)
6132 			rval = qla82xx_start_firmware(base_vha);
6133 		else
6134 			rval = QLA_SUCCESS;
6135 		qla82xx_idc_lock(ha);
6136 
6137 		if (rval != QLA_SUCCESS) {
6138 			ql_log(ql_log_info, base_vha, 0x900b,
6139 			    "HW State: FAILED.\n");
6140 			qla82xx_clear_drv_active(ha);
6141 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6142 			    QLA8XXX_DEV_FAILED);
6143 		} else {
6144 			ql_log(ql_log_info, base_vha, 0x900c,
6145 			    "HW State: READY.\n");
6146 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
6147 			    QLA8XXX_DEV_READY);
6148 			qla82xx_idc_unlock(ha);
6149 			ha->flags.isp82xx_fw_hung = 0;
6150 			rval = qla82xx_restart_isp(base_vha);
6151 			qla82xx_idc_lock(ha);
6152 			/* Clear driver state register */
6153 			qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
6154 			qla82xx_set_drv_active(base_vha);
6155 		}
6156 		qla82xx_idc_unlock(ha);
6157 	} else {
6158 		ql_dbg(ql_dbg_aer, base_vha, 0x900d,
6159 		    "This devfn is not reset owner = 0x%x.\n",
6160 		    ha->pdev->devfn);
6161 		if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
6162 		    QLA8XXX_DEV_READY)) {
6163 			ha->flags.isp82xx_fw_hung = 0;
6164 			rval = qla82xx_restart_isp(base_vha);
6165 			qla82xx_idc_lock(ha);
6166 			qla82xx_set_drv_active(base_vha);
6167 			qla82xx_idc_unlock(ha);
6168 		}
6169 	}
6170 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
6171 
6172 	return rval;
6173 }
6174 
6175 static pci_ers_result_t
6176 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
6177 {
6178 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
6179 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
6180 	struct qla_hw_data *ha = base_vha->hw;
6181 	struct rsp_que *rsp;
6182 	int rc, retries = 10;
6183 
6184 	ql_dbg(ql_dbg_aer, base_vha, 0x9004,
6185 	    "Slot Reset.\n");
6186 
6187 	/* Workaround: qla2xxx driver which access hardware earlier
6188 	 * needs error state to be pci_channel_io_online.
6189 	 * Otherwise mailbox command timesout.
6190 	 */
6191 	pdev->error_state = pci_channel_io_normal;
6192 
6193 	pci_restore_state(pdev);
6194 
6195 	/* pci_restore_state() clears the saved_state flag of the device
6196 	 * save restored state which resets saved_state flag
6197 	 */
6198 	pci_save_state(pdev);
6199 
6200 	if (ha->mem_only)
6201 		rc = pci_enable_device_mem(pdev);
6202 	else
6203 		rc = pci_enable_device(pdev);
6204 
6205 	if (rc) {
6206 		ql_log(ql_log_warn, base_vha, 0x9005,
6207 		    "Can't re-enable PCI device after reset.\n");
6208 		goto exit_slot_reset;
6209 	}
6210 
6211 	rsp = ha->rsp_q_map[0];
6212 	if (qla2x00_request_irqs(ha, rsp))
6213 		goto exit_slot_reset;
6214 
6215 	if (ha->isp_ops->pci_config(base_vha))
6216 		goto exit_slot_reset;
6217 
6218 	if (IS_QLA82XX(ha)) {
6219 		if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
6220 			ret = PCI_ERS_RESULT_RECOVERED;
6221 			goto exit_slot_reset;
6222 		} else
6223 			goto exit_slot_reset;
6224 	}
6225 
6226 	while (ha->flags.mbox_busy && retries--)
6227 		msleep(1000);
6228 
6229 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
6230 	if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
6231 		ret =  PCI_ERS_RESULT_RECOVERED;
6232 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
6233 
6234 
6235 exit_slot_reset:
6236 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
6237 	    "slot_reset return %x.\n", ret);
6238 
6239 	return ret;
6240 }
6241 
6242 static void
6243 qla2xxx_pci_resume(struct pci_dev *pdev)
6244 {
6245 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
6246 	struct qla_hw_data *ha = base_vha->hw;
6247 	int ret;
6248 
6249 	ql_dbg(ql_dbg_aer, base_vha, 0x900f,
6250 	    "pci_resume.\n");
6251 
6252 	ret = qla2x00_wait_for_hba_online(base_vha);
6253 	if (ret != QLA_SUCCESS) {
6254 		ql_log(ql_log_fatal, base_vha, 0x9002,
6255 		    "The device failed to resume I/O from slot/link_reset.\n");
6256 	}
6257 
6258 	pci_cleanup_aer_uncorrect_error_status(pdev);
6259 
6260 	ha->flags.eeh_busy = 0;
6261 }
6262 
6263 static void
6264 qla83xx_disable_laser(scsi_qla_host_t *vha)
6265 {
6266 	uint32_t reg, data, fn;
6267 	struct qla_hw_data *ha = vha->hw;
6268 	struct device_reg_24xx __iomem *isp_reg = &ha->iobase->isp24;
6269 
6270 	/* pci func #/port # */
6271 	ql_dbg(ql_dbg_init, vha, 0x004b,
6272 	    "Disabling Laser for hba: %p\n", vha);
6273 
6274 	fn = (RD_REG_DWORD(&isp_reg->ctrl_status) &
6275 		(BIT_15|BIT_14|BIT_13|BIT_12));
6276 
6277 	fn = (fn >> 12);
6278 
6279 	if (fn & 1)
6280 		reg = PORT_1_2031;
6281 	else
6282 		reg = PORT_0_2031;
6283 
6284 	data = LASER_OFF_2031;
6285 
6286 	qla83xx_wr_reg(vha, reg, data);
6287 }
6288 
6289 static int qla2xxx_map_queues(struct Scsi_Host *shost)
6290 {
6291 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
6292 
6293 	return blk_mq_pci_map_queues(&shost->tag_set, vha->hw->pdev);
6294 }
6295 
6296 static const struct pci_error_handlers qla2xxx_err_handler = {
6297 	.error_detected = qla2xxx_pci_error_detected,
6298 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
6299 	.slot_reset = qla2xxx_pci_slot_reset,
6300 	.resume = qla2xxx_pci_resume,
6301 };
6302 
6303 static struct pci_device_id qla2xxx_pci_tbl[] = {
6304 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
6305 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
6306 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
6307 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
6308 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
6309 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
6310 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
6311 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
6312 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
6313 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
6314 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
6315 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
6316 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
6317 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
6318 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
6319 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
6320 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
6321 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
6322 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
6323 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
6324 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
6325 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
6326 	{ 0 },
6327 };
6328 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
6329 
6330 static struct pci_driver qla2xxx_pci_driver = {
6331 	.name		= QLA2XXX_DRIVER_NAME,
6332 	.driver		= {
6333 		.owner		= THIS_MODULE,
6334 	},
6335 	.id_table	= qla2xxx_pci_tbl,
6336 	.probe		= qla2x00_probe_one,
6337 	.remove		= qla2x00_remove_one,
6338 	.shutdown	= qla2x00_shutdown,
6339 	.err_handler	= &qla2xxx_err_handler,
6340 };
6341 
6342 static const struct file_operations apidev_fops = {
6343 	.owner = THIS_MODULE,
6344 	.llseek = noop_llseek,
6345 };
6346 
6347 /**
6348  * qla2x00_module_init - Module initialization.
6349  **/
6350 static int __init
6351 qla2x00_module_init(void)
6352 {
6353 	int ret = 0;
6354 
6355 	/* Allocate cache for SRBs. */
6356 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
6357 	    SLAB_HWCACHE_ALIGN, NULL);
6358 	if (srb_cachep == NULL) {
6359 		ql_log(ql_log_fatal, NULL, 0x0001,
6360 		    "Unable to allocate SRB cache...Failing load!.\n");
6361 		return -ENOMEM;
6362 	}
6363 
6364 	/* Initialize target kmem_cache and mem_pools */
6365 	ret = qlt_init();
6366 	if (ret < 0) {
6367 		kmem_cache_destroy(srb_cachep);
6368 		return ret;
6369 	} else if (ret > 0) {
6370 		/*
6371 		 * If initiator mode is explictly disabled by qlt_init(),
6372 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
6373 		 * performing scsi_scan_target() during LOOP UP event.
6374 		 */
6375 		qla2xxx_transport_functions.disable_target_scan = 1;
6376 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
6377 	}
6378 
6379 	/* Derive version string. */
6380 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
6381 	if (ql2xextended_error_logging)
6382 		strcat(qla2x00_version_str, "-debug");
6383 
6384 	qla2xxx_transport_template =
6385 	    fc_attach_transport(&qla2xxx_transport_functions);
6386 	if (!qla2xxx_transport_template) {
6387 		kmem_cache_destroy(srb_cachep);
6388 		ql_log(ql_log_fatal, NULL, 0x0002,
6389 		    "fc_attach_transport failed...Failing load!.\n");
6390 		qlt_exit();
6391 		return -ENODEV;
6392 	}
6393 
6394 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
6395 	if (apidev_major < 0) {
6396 		ql_log(ql_log_fatal, NULL, 0x0003,
6397 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
6398 	}
6399 
6400 	qla2xxx_transport_vport_template =
6401 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
6402 	if (!qla2xxx_transport_vport_template) {
6403 		kmem_cache_destroy(srb_cachep);
6404 		qlt_exit();
6405 		fc_release_transport(qla2xxx_transport_template);
6406 		ql_log(ql_log_fatal, NULL, 0x0004,
6407 		    "fc_attach_transport vport failed...Failing load!.\n");
6408 		return -ENODEV;
6409 	}
6410 	ql_log(ql_log_info, NULL, 0x0005,
6411 	    "QLogic Fibre Channel HBA Driver: %s.\n",
6412 	    qla2x00_version_str);
6413 	ret = pci_register_driver(&qla2xxx_pci_driver);
6414 	if (ret) {
6415 		kmem_cache_destroy(srb_cachep);
6416 		qlt_exit();
6417 		fc_release_transport(qla2xxx_transport_template);
6418 		fc_release_transport(qla2xxx_transport_vport_template);
6419 		ql_log(ql_log_fatal, NULL, 0x0006,
6420 		    "pci_register_driver failed...ret=%d Failing load!.\n",
6421 		    ret);
6422 	}
6423 	return ret;
6424 }
6425 
6426 /**
6427  * qla2x00_module_exit - Module cleanup.
6428  **/
6429 static void __exit
6430 qla2x00_module_exit(void)
6431 {
6432 	unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
6433 	pci_unregister_driver(&qla2xxx_pci_driver);
6434 	qla2x00_release_firmware();
6435 	kmem_cache_destroy(srb_cachep);
6436 	qlt_exit();
6437 	if (ctx_cachep)
6438 		kmem_cache_destroy(ctx_cachep);
6439 	fc_release_transport(qla2xxx_transport_template);
6440 	fc_release_transport(qla2xxx_transport_vport_template);
6441 }
6442 
6443 module_init(qla2x00_module_init);
6444 module_exit(qla2x00_module_exit);
6445 
6446 MODULE_AUTHOR("QLogic Corporation");
6447 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
6448 MODULE_LICENSE("GPL");
6449 MODULE_VERSION(QLA2XXX_VERSION);
6450 MODULE_FIRMWARE(FW_FILE_ISP21XX);
6451 MODULE_FIRMWARE(FW_FILE_ISP22XX);
6452 MODULE_FIRMWARE(FW_FILE_ISP2300);
6453 MODULE_FIRMWARE(FW_FILE_ISP2322);
6454 MODULE_FIRMWARE(FW_FILE_ISP24XX);
6455 MODULE_FIRMWARE(FW_FILE_ISP25XX);
6456