xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_os.c (revision ca79522c)
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2013 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 <scsi/scsi_tcq.h>
17 #include <scsi/scsicam.h>
18 #include <scsi/scsi_transport.h>
19 #include <scsi/scsi_transport_fc.h>
20 
21 #include "qla_target.h"
22 
23 /*
24  * Driver version
25  */
26 char qla2x00_version_str[40];
27 
28 static int apidev_major;
29 
30 /*
31  * SRB allocation cache
32  */
33 static struct kmem_cache *srb_cachep;
34 
35 /*
36  * CT6 CTX allocation cache
37  */
38 static struct kmem_cache *ctx_cachep;
39 /*
40  * error level for logging
41  */
42 int ql_errlev = ql_log_all;
43 
44 static int ql2xenableclass2;
45 module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
46 MODULE_PARM_DESC(ql2xenableclass2,
47 		"Specify if Class 2 operations are supported from the very "
48 		"beginning. Default is 0 - class 2 not supported.");
49 
50 
51 int ql2xlogintimeout = 20;
52 module_param(ql2xlogintimeout, int, S_IRUGO);
53 MODULE_PARM_DESC(ql2xlogintimeout,
54 		"Login timeout value in seconds.");
55 
56 int qlport_down_retry;
57 module_param(qlport_down_retry, int, S_IRUGO);
58 MODULE_PARM_DESC(qlport_down_retry,
59 		"Maximum number of command retries to a port that returns "
60 		"a PORT-DOWN status.");
61 
62 int ql2xplogiabsentdevice;
63 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
64 MODULE_PARM_DESC(ql2xplogiabsentdevice,
65 		"Option to enable PLOGI to devices that are not present after "
66 		"a Fabric scan.  This is needed for several broken switches. "
67 		"Default is 0 - no PLOGI. 1 - perfom PLOGI.");
68 
69 int ql2xloginretrycount = 0;
70 module_param(ql2xloginretrycount, int, S_IRUGO);
71 MODULE_PARM_DESC(ql2xloginretrycount,
72 		"Specify an alternate value for the NVRAM login retry count.");
73 
74 int ql2xallocfwdump = 1;
75 module_param(ql2xallocfwdump, int, S_IRUGO);
76 MODULE_PARM_DESC(ql2xallocfwdump,
77 		"Option to enable allocation of memory for a firmware dump "
78 		"during HBA initialization.  Memory allocation requirements "
79 		"vary by ISP type.  Default is 1 - allocate memory.");
80 
81 int ql2xextended_error_logging;
82 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
83 MODULE_PARM_DESC(ql2xextended_error_logging,
84 		"Option to enable extended error logging,\n"
85 		"\t\tDefault is 0 - no logging.  0x40000000 - Module Init & Probe.\n"
86 		"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
87 		"\t\t0x08000000 - IO tracing.    0x04000000 - DPC Thread.\n"
88 		"\t\t0x02000000 - Async events.  0x01000000 - Timer routines.\n"
89 		"\t\t0x00800000 - User space.    0x00400000 - Task Management.\n"
90 		"\t\t0x00200000 - AER/EEH.       0x00100000 - Multi Q.\n"
91 		"\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
92 		"\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
93 		"\t\t0x00008000 - Verbose.       0x00004000 - Target.\n"
94 		"\t\t0x00002000 - Target Mgmt.   0x00001000 - Target TMF.\n"
95 		"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
96 		"\t\t0x1e400000 - Preferred value for capturing essential "
97 		"debug information (equivalent to old "
98 		"ql2xextended_error_logging=1).\n"
99 		"\t\tDo LOGICAL OR of the value to enable more than one level");
100 
101 int ql2xshiftctondsd = 6;
102 module_param(ql2xshiftctondsd, int, S_IRUGO);
103 MODULE_PARM_DESC(ql2xshiftctondsd,
104 		"Set to control shifting of command type processing "
105 		"based on total number of SG elements.");
106 
107 static void qla2x00_free_device(scsi_qla_host_t *);
108 
109 int ql2xfdmienable=1;
110 module_param(ql2xfdmienable, int, S_IRUGO);
111 MODULE_PARM_DESC(ql2xfdmienable,
112 		"Enables FDMI registrations. "
113 		"0 - no FDMI. Default is 1 - perform FDMI.");
114 
115 int ql2xmaxqdepth = MAX_Q_DEPTH;
116 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
117 MODULE_PARM_DESC(ql2xmaxqdepth,
118 		"Maximum queue depth to set for each LUN. "
119 		"Default is 32.");
120 
121 int ql2xenabledif = 2;
122 module_param(ql2xenabledif, int, S_IRUGO);
123 MODULE_PARM_DESC(ql2xenabledif,
124 		" Enable T10-CRC-DIF "
125 		" Default is 0 - No DIF Support. 1 - Enable it"
126 		", 2 - Enable DIF for all types, except Type 0.");
127 
128 int ql2xenablehba_err_chk = 2;
129 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
130 MODULE_PARM_DESC(ql2xenablehba_err_chk,
131 		" Enable T10-CRC-DIF Error isolation by HBA:\n"
132 		" Default is 1.\n"
133 		"  0 -- Error isolation disabled\n"
134 		"  1 -- Error isolation enabled only for DIX Type 0\n"
135 		"  2 -- Error isolation enabled for all Types\n");
136 
137 int ql2xiidmaenable=1;
138 module_param(ql2xiidmaenable, int, S_IRUGO);
139 MODULE_PARM_DESC(ql2xiidmaenable,
140 		"Enables iIDMA settings "
141 		"Default is 1 - perform iIDMA. 0 - no iIDMA.");
142 
143 int ql2xmaxqueues = 1;
144 module_param(ql2xmaxqueues, int, S_IRUGO);
145 MODULE_PARM_DESC(ql2xmaxqueues,
146 		"Enables MQ settings "
147 		"Default is 1 for single queue. Set it to number "
148 		"of queues in MQ mode.");
149 
150 int ql2xmultique_tag;
151 module_param(ql2xmultique_tag, int, S_IRUGO);
152 MODULE_PARM_DESC(ql2xmultique_tag,
153 		"Enables CPU affinity settings for the driver "
154 		"Default is 0 for no affinity of request and response IO. "
155 		"Set it to 1 to turn on the cpu affinity.");
156 
157 int ql2xfwloadbin;
158 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
159 MODULE_PARM_DESC(ql2xfwloadbin,
160 		"Option to specify location from which to load ISP firmware:.\n"
161 		" 2 -- load firmware via the request_firmware() (hotplug).\n"
162 		"      interface.\n"
163 		" 1 -- load firmware from flash.\n"
164 		" 0 -- use default semantics.\n");
165 
166 int ql2xetsenable;
167 module_param(ql2xetsenable, int, S_IRUGO);
168 MODULE_PARM_DESC(ql2xetsenable,
169 		"Enables firmware ETS burst."
170 		"Default is 0 - skip ETS enablement.");
171 
172 int ql2xdbwr = 1;
173 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
174 MODULE_PARM_DESC(ql2xdbwr,
175 		"Option to specify scheme for request queue posting.\n"
176 		" 0 -- Regular doorbell.\n"
177 		" 1 -- CAMRAM doorbell (faster).\n");
178 
179 int ql2xtargetreset = 1;
180 module_param(ql2xtargetreset, int, S_IRUGO);
181 MODULE_PARM_DESC(ql2xtargetreset,
182 		 "Enable target reset."
183 		 "Default is 1 - use hw defaults.");
184 
185 int ql2xgffidenable;
186 module_param(ql2xgffidenable, int, S_IRUGO);
187 MODULE_PARM_DESC(ql2xgffidenable,
188 		"Enables GFF_ID checks of port type. "
189 		"Default is 0 - Do not use GFF_ID information.");
190 
191 int ql2xasynctmfenable;
192 module_param(ql2xasynctmfenable, int, S_IRUGO);
193 MODULE_PARM_DESC(ql2xasynctmfenable,
194 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
195 		"Default is 0 - Issue TM IOCBs via mailbox mechanism.");
196 
197 int ql2xdontresethba;
198 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
199 MODULE_PARM_DESC(ql2xdontresethba,
200 		"Option to specify reset behaviour.\n"
201 		" 0 (Default) -- Reset on failure.\n"
202 		" 1 -- Do not reset on failure.\n");
203 
204 uint ql2xmaxlun = MAX_LUNS;
205 module_param(ql2xmaxlun, uint, S_IRUGO);
206 MODULE_PARM_DESC(ql2xmaxlun,
207 		"Defines the maximum LU number to register with the SCSI "
208 		"midlayer. Default is 65535.");
209 
210 int ql2xmdcapmask = 0x1F;
211 module_param(ql2xmdcapmask, int, S_IRUGO);
212 MODULE_PARM_DESC(ql2xmdcapmask,
213 		"Set the Minidump driver capture mask level. "
214 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
215 
216 int ql2xmdenable = 1;
217 module_param(ql2xmdenable, int, S_IRUGO);
218 MODULE_PARM_DESC(ql2xmdenable,
219 		"Enable/disable MiniDump. "
220 		"0 - MiniDump disabled. "
221 		"1 (Default) - MiniDump enabled.");
222 
223 /*
224  * SCSI host template entry points
225  */
226 static int qla2xxx_slave_configure(struct scsi_device * device);
227 static int qla2xxx_slave_alloc(struct scsi_device *);
228 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
229 static void qla2xxx_scan_start(struct Scsi_Host *);
230 static void qla2xxx_slave_destroy(struct scsi_device *);
231 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
232 static int qla2xxx_eh_abort(struct scsi_cmnd *);
233 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
234 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
235 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
236 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
237 
238 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
239 static int qla2x00_change_queue_type(struct scsi_device *, int);
240 
241 struct scsi_host_template qla2xxx_driver_template = {
242 	.module			= THIS_MODULE,
243 	.name			= QLA2XXX_DRIVER_NAME,
244 	.queuecommand		= qla2xxx_queuecommand,
245 
246 	.eh_abort_handler	= qla2xxx_eh_abort,
247 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
248 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
249 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
250 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
251 
252 	.slave_configure	= qla2xxx_slave_configure,
253 
254 	.slave_alloc		= qla2xxx_slave_alloc,
255 	.slave_destroy		= qla2xxx_slave_destroy,
256 	.scan_finished		= qla2xxx_scan_finished,
257 	.scan_start		= qla2xxx_scan_start,
258 	.change_queue_depth	= qla2x00_change_queue_depth,
259 	.change_queue_type	= qla2x00_change_queue_type,
260 	.this_id		= -1,
261 	.cmd_per_lun		= 3,
262 	.use_clustering		= ENABLE_CLUSTERING,
263 	.sg_tablesize		= SG_ALL,
264 
265 	.max_sectors		= 0xFFFF,
266 	.shost_attrs		= qla2x00_host_attrs,
267 
268 	.supported_mode		= MODE_INITIATOR,
269 };
270 
271 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
272 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
273 
274 /* TODO Convert to inlines
275  *
276  * Timer routines
277  */
278 
279 __inline__ void
280 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
281 {
282 	init_timer(&vha->timer);
283 	vha->timer.expires = jiffies + interval * HZ;
284 	vha->timer.data = (unsigned long)vha;
285 	vha->timer.function = (void (*)(unsigned long))func;
286 	add_timer(&vha->timer);
287 	vha->timer_active = 1;
288 }
289 
290 static inline void
291 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
292 {
293 	/* Currently used for 82XX only. */
294 	if (vha->device_flags & DFLG_DEV_FAILED) {
295 		ql_dbg(ql_dbg_timer, vha, 0x600d,
296 		    "Device in a failed state, returning.\n");
297 		return;
298 	}
299 
300 	mod_timer(&vha->timer, jiffies + interval * HZ);
301 }
302 
303 static __inline__ void
304 qla2x00_stop_timer(scsi_qla_host_t *vha)
305 {
306 	del_timer_sync(&vha->timer);
307 	vha->timer_active = 0;
308 }
309 
310 static int qla2x00_do_dpc(void *data);
311 
312 static void qla2x00_rst_aen(scsi_qla_host_t *);
313 
314 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
315 	struct req_que **, struct rsp_que **);
316 static void qla2x00_free_fw_dump(struct qla_hw_data *);
317 static void qla2x00_mem_free(struct qla_hw_data *);
318 
319 /* -------------------------------------------------------------------------- */
320 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
321 				struct rsp_que *rsp)
322 {
323 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
324 	ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
325 				GFP_KERNEL);
326 	if (!ha->req_q_map) {
327 		ql_log(ql_log_fatal, vha, 0x003b,
328 		    "Unable to allocate memory for request queue ptrs.\n");
329 		goto fail_req_map;
330 	}
331 
332 	ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
333 				GFP_KERNEL);
334 	if (!ha->rsp_q_map) {
335 		ql_log(ql_log_fatal, vha, 0x003c,
336 		    "Unable to allocate memory for response queue ptrs.\n");
337 		goto fail_rsp_map;
338 	}
339 	/*
340 	 * Make sure we record at least the request and response queue zero in
341 	 * case we need to free them if part of the probe fails.
342 	 */
343 	ha->rsp_q_map[0] = rsp;
344 	ha->req_q_map[0] = req;
345 	set_bit(0, ha->rsp_qid_map);
346 	set_bit(0, ha->req_qid_map);
347 	return 1;
348 
349 fail_rsp_map:
350 	kfree(ha->req_q_map);
351 	ha->req_q_map = NULL;
352 fail_req_map:
353 	return -ENOMEM;
354 }
355 
356 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
357 {
358 	if (IS_QLAFX00(ha)) {
359 		if (req && req->ring_fx00)
360 			dma_free_coherent(&ha->pdev->dev,
361 			    (req->length_fx00 + 1) * sizeof(request_t),
362 			    req->ring_fx00, req->dma_fx00);
363 	} else if (req && req->ring)
364 		dma_free_coherent(&ha->pdev->dev,
365 		(req->length + 1) * sizeof(request_t),
366 		req->ring, req->dma);
367 
368 	if (req)
369 		kfree(req->outstanding_cmds);
370 
371 	kfree(req);
372 	req = NULL;
373 }
374 
375 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
376 {
377 	if (IS_QLAFX00(ha)) {
378 		if (rsp && rsp->ring)
379 			dma_free_coherent(&ha->pdev->dev,
380 			    (rsp->length_fx00 + 1) * sizeof(request_t),
381 			    rsp->ring_fx00, rsp->dma_fx00);
382 	} else if (rsp && rsp->ring) {
383 		dma_free_coherent(&ha->pdev->dev,
384 		(rsp->length + 1) * sizeof(response_t),
385 		rsp->ring, rsp->dma);
386 	}
387 	kfree(rsp);
388 	rsp = NULL;
389 }
390 
391 static void qla2x00_free_queues(struct qla_hw_data *ha)
392 {
393 	struct req_que *req;
394 	struct rsp_que *rsp;
395 	int cnt;
396 
397 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
398 		req = ha->req_q_map[cnt];
399 		qla2x00_free_req_que(ha, req);
400 	}
401 	kfree(ha->req_q_map);
402 	ha->req_q_map = NULL;
403 
404 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
405 		rsp = ha->rsp_q_map[cnt];
406 		qla2x00_free_rsp_que(ha, rsp);
407 	}
408 	kfree(ha->rsp_q_map);
409 	ha->rsp_q_map = NULL;
410 }
411 
412 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
413 {
414 	uint16_t options = 0;
415 	int ques, req, ret;
416 	struct qla_hw_data *ha = vha->hw;
417 
418 	if (!(ha->fw_attributes & BIT_6)) {
419 		ql_log(ql_log_warn, vha, 0x00d8,
420 		    "Firmware is not multi-queue capable.\n");
421 		goto fail;
422 	}
423 	if (ql2xmultique_tag) {
424 		/* create a request queue for IO */
425 		options |= BIT_7;
426 		req = qla25xx_create_req_que(ha, options, 0, 0, -1,
427 			QLA_DEFAULT_QUE_QOS);
428 		if (!req) {
429 			ql_log(ql_log_warn, vha, 0x00e0,
430 			    "Failed to create request queue.\n");
431 			goto fail;
432 		}
433 		ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
434 		vha->req = ha->req_q_map[req];
435 		options |= BIT_1;
436 		for (ques = 1; ques < ha->max_rsp_queues; ques++) {
437 			ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
438 			if (!ret) {
439 				ql_log(ql_log_warn, vha, 0x00e8,
440 				    "Failed to create response queue.\n");
441 				goto fail2;
442 			}
443 		}
444 		ha->flags.cpu_affinity_enabled = 1;
445 		ql_dbg(ql_dbg_multiq, vha, 0xc007,
446 		    "CPU affinity mode enalbed, "
447 		    "no. of response queues:%d no. of request queues:%d.\n",
448 		    ha->max_rsp_queues, ha->max_req_queues);
449 		ql_dbg(ql_dbg_init, vha, 0x00e9,
450 		    "CPU affinity mode enalbed, "
451 		    "no. of response queues:%d no. of request queues:%d.\n",
452 		    ha->max_rsp_queues, ha->max_req_queues);
453 	}
454 	return 0;
455 fail2:
456 	qla25xx_delete_queues(vha);
457 	destroy_workqueue(ha->wq);
458 	ha->wq = NULL;
459 	vha->req = ha->req_q_map[0];
460 fail:
461 	ha->mqenable = 0;
462 	kfree(ha->req_q_map);
463 	kfree(ha->rsp_q_map);
464 	ha->max_req_queues = ha->max_rsp_queues = 1;
465 	return 1;
466 }
467 
468 static char *
469 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
470 {
471 	struct qla_hw_data *ha = vha->hw;
472 	static char *pci_bus_modes[] = {
473 		"33", "66", "100", "133",
474 	};
475 	uint16_t pci_bus;
476 
477 	strcpy(str, "PCI");
478 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
479 	if (pci_bus) {
480 		strcat(str, "-X (");
481 		strcat(str, pci_bus_modes[pci_bus]);
482 	} else {
483 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
484 		strcat(str, " (");
485 		strcat(str, pci_bus_modes[pci_bus]);
486 	}
487 	strcat(str, " MHz)");
488 
489 	return (str);
490 }
491 
492 static char *
493 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
494 {
495 	static char *pci_bus_modes[] = { "33", "66", "100", "133", };
496 	struct qla_hw_data *ha = vha->hw;
497 	uint32_t pci_bus;
498 	int pcie_reg;
499 
500 	pcie_reg = pci_pcie_cap(ha->pdev);
501 	if (pcie_reg) {
502 		char lwstr[6];
503 		uint16_t pcie_lstat, lspeed, lwidth;
504 
505 		pcie_reg += PCI_EXP_LNKCAP;
506 		pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
507 		lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
508 		lwidth = (pcie_lstat &
509 		    (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
510 
511 		strcpy(str, "PCIe (");
512 		switch (lspeed) {
513 		case 1:
514 			strcat(str, "2.5GT/s ");
515 			break;
516 		case 2:
517 			strcat(str, "5.0GT/s ");
518 			break;
519 		case 3:
520 			strcat(str, "8.0GT/s ");
521 			break;
522 		default:
523 			strcat(str, "<unknown> ");
524 			break;
525 		}
526 		snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
527 		strcat(str, lwstr);
528 
529 		return str;
530 	}
531 
532 	strcpy(str, "PCI");
533 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
534 	if (pci_bus == 0 || pci_bus == 8) {
535 		strcat(str, " (");
536 		strcat(str, pci_bus_modes[pci_bus >> 3]);
537 	} else {
538 		strcat(str, "-X ");
539 		if (pci_bus & BIT_2)
540 			strcat(str, "Mode 2");
541 		else
542 			strcat(str, "Mode 1");
543 		strcat(str, " (");
544 		strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
545 	}
546 	strcat(str, " MHz)");
547 
548 	return str;
549 }
550 
551 static char *
552 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
553 {
554 	char un_str[10];
555 	struct qla_hw_data *ha = vha->hw;
556 
557 	sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
558 	    ha->fw_minor_version,
559 	    ha->fw_subminor_version);
560 
561 	if (ha->fw_attributes & BIT_9) {
562 		strcat(str, "FLX");
563 		return (str);
564 	}
565 
566 	switch (ha->fw_attributes & 0xFF) {
567 	case 0x7:
568 		strcat(str, "EF");
569 		break;
570 	case 0x17:
571 		strcat(str, "TP");
572 		break;
573 	case 0x37:
574 		strcat(str, "IP");
575 		break;
576 	case 0x77:
577 		strcat(str, "VI");
578 		break;
579 	default:
580 		sprintf(un_str, "(%x)", ha->fw_attributes);
581 		strcat(str, un_str);
582 		break;
583 	}
584 	if (ha->fw_attributes & 0x100)
585 		strcat(str, "X");
586 
587 	return (str);
588 }
589 
590 static char *
591 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
592 {
593 	struct qla_hw_data *ha = vha->hw;
594 
595 	sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
596 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
597 	return str;
598 }
599 
600 void
601 qla2x00_sp_free_dma(void *vha, void *ptr)
602 {
603 	srb_t *sp = (srb_t *)ptr;
604 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
605 	struct qla_hw_data *ha = sp->fcport->vha->hw;
606 	void *ctx = GET_CMD_CTX_SP(sp);
607 
608 	if (sp->flags & SRB_DMA_VALID) {
609 		scsi_dma_unmap(cmd);
610 		sp->flags &= ~SRB_DMA_VALID;
611 	}
612 
613 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
614 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
615 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
616 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
617 	}
618 
619 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
620 		/* List assured to be having elements */
621 		qla2x00_clean_dsd_pool(ha, sp);
622 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
623 	}
624 
625 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
626 		dma_pool_free(ha->dl_dma_pool, ctx,
627 		    ((struct crc_context *)ctx)->crc_ctx_dma);
628 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
629 	}
630 
631 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
632 		struct ct6_dsd *ctx1 = (struct ct6_dsd *)ctx;
633 
634 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
635 			ctx1->fcp_cmnd_dma);
636 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
637 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
638 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
639 		mempool_free(ctx1, ha->ctx_mempool);
640 		ctx1 = NULL;
641 	}
642 
643 	CMD_SP(cmd) = NULL;
644 	qla2x00_rel_sp(sp->fcport->vha, sp);
645 }
646 
647 static void
648 qla2x00_sp_compl(void *data, void *ptr, int res)
649 {
650 	struct qla_hw_data *ha = (struct qla_hw_data *)data;
651 	srb_t *sp = (srb_t *)ptr;
652 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
653 
654 	cmd->result = res;
655 
656 	if (atomic_read(&sp->ref_count) == 0) {
657 		ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
658 		    "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
659 		    sp, GET_CMD_SP(sp));
660 		if (ql2xextended_error_logging & ql_dbg_io)
661 			BUG();
662 		return;
663 	}
664 	if (!atomic_dec_and_test(&sp->ref_count))
665 		return;
666 
667 	qla2x00_sp_free_dma(ha, sp);
668 	cmd->scsi_done(cmd);
669 }
670 
671 /* If we are SP1 here, we need to still take and release the host_lock as SP1
672  * does not have the changes necessary to avoid taking host->host_lock.
673  */
674 static int
675 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
676 {
677 	scsi_qla_host_t *vha = shost_priv(host);
678 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
679 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
680 	struct qla_hw_data *ha = vha->hw;
681 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
682 	srb_t *sp;
683 	int rval;
684 
685 	if (ha->flags.eeh_busy) {
686 		if (ha->flags.pci_channel_io_perm_failure) {
687 			ql_dbg(ql_dbg_aer, vha, 0x9010,
688 			    "PCI Channel IO permanent failure, exiting "
689 			    "cmd=%p.\n", cmd);
690 			cmd->result = DID_NO_CONNECT << 16;
691 		} else {
692 			ql_dbg(ql_dbg_aer, vha, 0x9011,
693 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
694 			cmd->result = DID_REQUEUE << 16;
695 		}
696 		goto qc24_fail_command;
697 	}
698 
699 	rval = fc_remote_port_chkready(rport);
700 	if (rval) {
701 		cmd->result = rval;
702 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
703 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
704 		    cmd, rval);
705 		goto qc24_fail_command;
706 	}
707 
708 	if (!vha->flags.difdix_supported &&
709 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
710 			ql_dbg(ql_dbg_io, vha, 0x3004,
711 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
712 			    cmd);
713 			cmd->result = DID_NO_CONNECT << 16;
714 			goto qc24_fail_command;
715 	}
716 
717 	if (!fcport) {
718 		cmd->result = DID_NO_CONNECT << 16;
719 		goto qc24_fail_command;
720 	}
721 
722 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
723 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
724 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
725 			ql_dbg(ql_dbg_io, vha, 0x3005,
726 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
727 			    atomic_read(&fcport->state),
728 			    atomic_read(&base_vha->loop_state));
729 			cmd->result = DID_NO_CONNECT << 16;
730 			goto qc24_fail_command;
731 		}
732 		goto qc24_target_busy;
733 	}
734 
735 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
736 	if (!sp) {
737 		set_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags);
738 		goto qc24_host_busy;
739 	}
740 
741 	sp->u.scmd.cmd = cmd;
742 	sp->type = SRB_SCSI_CMD;
743 	atomic_set(&sp->ref_count, 1);
744 	CMD_SP(cmd) = (void *)sp;
745 	sp->free = qla2x00_sp_free_dma;
746 	sp->done = qla2x00_sp_compl;
747 
748 	rval = ha->isp_ops->start_scsi(sp);
749 	if (rval != QLA_SUCCESS) {
750 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
751 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
752 		set_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags);
753 		goto qc24_host_busy_free_sp;
754 	}
755 
756 	return 0;
757 
758 qc24_host_busy_free_sp:
759 	qla2x00_sp_free_dma(ha, sp);
760 
761 qc24_host_busy:
762 	return SCSI_MLQUEUE_HOST_BUSY;
763 
764 qc24_target_busy:
765 	return SCSI_MLQUEUE_TARGET_BUSY;
766 
767 qc24_fail_command:
768 	cmd->scsi_done(cmd);
769 
770 	return 0;
771 }
772 
773 /*
774  * qla2x00_eh_wait_on_command
775  *    Waits for the command to be returned by the Firmware for some
776  *    max time.
777  *
778  * Input:
779  *    cmd = Scsi Command to wait on.
780  *
781  * Return:
782  *    Not Found : 0
783  *    Found : 1
784  */
785 static int
786 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
787 {
788 #define ABORT_POLLING_PERIOD	1000
789 #define ABORT_WAIT_ITER		((10 * 1000) / (ABORT_POLLING_PERIOD))
790 	unsigned long wait_iter = ABORT_WAIT_ITER;
791 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
792 	struct qla_hw_data *ha = vha->hw;
793 	int ret = QLA_SUCCESS;
794 
795 	if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
796 		ql_dbg(ql_dbg_taskm, vha, 0x8005,
797 		    "Return:eh_wait.\n");
798 		return ret;
799 	}
800 
801 	while (CMD_SP(cmd) && wait_iter--) {
802 		msleep(ABORT_POLLING_PERIOD);
803 	}
804 	if (CMD_SP(cmd))
805 		ret = QLA_FUNCTION_FAILED;
806 
807 	return ret;
808 }
809 
810 /*
811  * qla2x00_wait_for_hba_online
812  *    Wait till the HBA is online after going through
813  *    <= MAX_RETRIES_OF_ISP_ABORT  or
814  *    finally HBA is disabled ie marked offline
815  *
816  * Input:
817  *     ha - pointer to host adapter structure
818  *
819  * Note:
820  *    Does context switching-Release SPIN_LOCK
821  *    (if any) before calling this routine.
822  *
823  * Return:
824  *    Success (Adapter is online) : 0
825  *    Failed  (Adapter is offline/disabled) : 1
826  */
827 int
828 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
829 {
830 	int		return_status;
831 	unsigned long	wait_online;
832 	struct qla_hw_data *ha = vha->hw;
833 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
834 
835 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
836 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
837 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
838 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
839 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
840 
841 		msleep(1000);
842 	}
843 	if (base_vha->flags.online)
844 		return_status = QLA_SUCCESS;
845 	else
846 		return_status = QLA_FUNCTION_FAILED;
847 
848 	return (return_status);
849 }
850 
851 /*
852  * qla2x00_wait_for_reset_ready
853  *    Wait till the HBA is online after going through
854  *    <= MAX_RETRIES_OF_ISP_ABORT  or
855  *    finally HBA is disabled ie marked offline or flash
856  *    operations are in progress.
857  *
858  * Input:
859  *     ha - pointer to host adapter structure
860  *
861  * Note:
862  *    Does context switching-Release SPIN_LOCK
863  *    (if any) before calling this routine.
864  *
865  * Return:
866  *    Success (Adapter is online/no flash ops) : 0
867  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
868  */
869 static int
870 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
871 {
872 	int		return_status;
873 	unsigned long	wait_online;
874 	struct qla_hw_data *ha = vha->hw;
875 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
876 
877 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
878 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
879 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
880 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
881 	    ha->optrom_state != QLA_SWAITING ||
882 	    ha->dpc_active) && time_before(jiffies, wait_online))
883 		msleep(1000);
884 
885 	if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
886 		return_status = QLA_SUCCESS;
887 	else
888 		return_status = QLA_FUNCTION_FAILED;
889 
890 	ql_dbg(ql_dbg_taskm, vha, 0x8019,
891 	    "%s return status=%d.\n", __func__, return_status);
892 
893 	return return_status;
894 }
895 
896 int
897 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
898 {
899 	int		return_status;
900 	unsigned long	wait_reset;
901 	struct qla_hw_data *ha = vha->hw;
902 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
903 
904 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
905 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
906 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
907 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
908 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
909 
910 		msleep(1000);
911 
912 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
913 		    ha->flags.chip_reset_done)
914 			break;
915 	}
916 	if (ha->flags.chip_reset_done)
917 		return_status = QLA_SUCCESS;
918 	else
919 		return_status = QLA_FUNCTION_FAILED;
920 
921 	return return_status;
922 }
923 
924 static void
925 sp_get(struct srb *sp)
926 {
927 	atomic_inc(&sp->ref_count);
928 }
929 
930 /**************************************************************************
931 * qla2xxx_eh_abort
932 *
933 * Description:
934 *    The abort function will abort the specified command.
935 *
936 * Input:
937 *    cmd = Linux SCSI command packet to be aborted.
938 *
939 * Returns:
940 *    Either SUCCESS or FAILED.
941 *
942 * Note:
943 *    Only return FAILED if command not returned by firmware.
944 **************************************************************************/
945 static int
946 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
947 {
948 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
949 	srb_t *sp;
950 	int ret;
951 	unsigned int id, lun;
952 	unsigned long flags;
953 	int wait = 0;
954 	struct qla_hw_data *ha = vha->hw;
955 
956 	if (!CMD_SP(cmd))
957 		return SUCCESS;
958 
959 	ret = fc_block_scsi_eh(cmd);
960 	if (ret != 0)
961 		return ret;
962 	ret = SUCCESS;
963 
964 	id = cmd->device->id;
965 	lun = cmd->device->lun;
966 
967 	spin_lock_irqsave(&ha->hardware_lock, flags);
968 	sp = (srb_t *) CMD_SP(cmd);
969 	if (!sp) {
970 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
971 		return SUCCESS;
972 	}
973 
974 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
975 	    "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
976 	    vha->host_no, id, lun, sp, cmd);
977 
978 	/* Get a reference to the sp and drop the lock.*/
979 	sp_get(sp);
980 
981 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
982 	if (ha->isp_ops->abort_command(sp)) {
983 		ret = FAILED;
984 		ql_dbg(ql_dbg_taskm, vha, 0x8003,
985 		    "Abort command mbx failed cmd=%p.\n", cmd);
986 	} else {
987 		ql_dbg(ql_dbg_taskm, vha, 0x8004,
988 		    "Abort command mbx success cmd=%p.\n", cmd);
989 		wait = 1;
990 	}
991 
992 	spin_lock_irqsave(&ha->hardware_lock, flags);
993 	sp->done(ha, sp, 0);
994 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
995 
996 	/* Did the command return during mailbox execution? */
997 	if (ret == FAILED && !CMD_SP(cmd))
998 		ret = SUCCESS;
999 
1000 	/* Wait for the command to be returned. */
1001 	if (wait) {
1002 		if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
1003 			ql_log(ql_log_warn, vha, 0x8006,
1004 			    "Abort handler timed out cmd=%p.\n", cmd);
1005 			ret = FAILED;
1006 		}
1007 	}
1008 
1009 	ql_log(ql_log_info, vha, 0x801c,
1010 	    "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
1011 	    vha->host_no, id, lun, wait, ret);
1012 
1013 	return ret;
1014 }
1015 
1016 int
1017 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1018 	unsigned int l, enum nexus_wait_type type)
1019 {
1020 	int cnt, match, status;
1021 	unsigned long flags;
1022 	struct qla_hw_data *ha = vha->hw;
1023 	struct req_que *req;
1024 	srb_t *sp;
1025 	struct scsi_cmnd *cmd;
1026 
1027 	status = QLA_SUCCESS;
1028 
1029 	spin_lock_irqsave(&ha->hardware_lock, flags);
1030 	req = vha->req;
1031 	for (cnt = 1; status == QLA_SUCCESS &&
1032 		cnt < req->num_outstanding_cmds; cnt++) {
1033 		sp = req->outstanding_cmds[cnt];
1034 		if (!sp)
1035 			continue;
1036 		if (sp->type != SRB_SCSI_CMD)
1037 			continue;
1038 		if (vha->vp_idx != sp->fcport->vha->vp_idx)
1039 			continue;
1040 		match = 0;
1041 		cmd = GET_CMD_SP(sp);
1042 		switch (type) {
1043 		case WAIT_HOST:
1044 			match = 1;
1045 			break;
1046 		case WAIT_TARGET:
1047 			match = cmd->device->id == t;
1048 			break;
1049 		case WAIT_LUN:
1050 			match = (cmd->device->id == t &&
1051 				cmd->device->lun == l);
1052 			break;
1053 		}
1054 		if (!match)
1055 			continue;
1056 
1057 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1058 		status = qla2x00_eh_wait_on_command(cmd);
1059 		spin_lock_irqsave(&ha->hardware_lock, flags);
1060 	}
1061 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1062 
1063 	return status;
1064 }
1065 
1066 static char *reset_errors[] = {
1067 	"HBA not online",
1068 	"HBA not ready",
1069 	"Task management failed",
1070 	"Waiting for command completions",
1071 };
1072 
1073 static int
1074 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
1075     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
1076 {
1077 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1078 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1079 	int err;
1080 
1081 	if (!fcport) {
1082 		return FAILED;
1083 	}
1084 
1085 	err = fc_block_scsi_eh(cmd);
1086 	if (err != 0)
1087 		return err;
1088 
1089 	ql_log(ql_log_info, vha, 0x8009,
1090 	    "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
1091 	    cmd->device->id, cmd->device->lun, cmd);
1092 
1093 	err = 0;
1094 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1095 		ql_log(ql_log_warn, vha, 0x800a,
1096 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1097 		goto eh_reset_failed;
1098 	}
1099 	err = 2;
1100 	if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1101 		!= QLA_SUCCESS) {
1102 		ql_log(ql_log_warn, vha, 0x800c,
1103 		    "do_reset failed for cmd=%p.\n", cmd);
1104 		goto eh_reset_failed;
1105 	}
1106 	err = 3;
1107 	if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1108 	    cmd->device->lun, type) != QLA_SUCCESS) {
1109 		ql_log(ql_log_warn, vha, 0x800d,
1110 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1111 		goto eh_reset_failed;
1112 	}
1113 
1114 	ql_log(ql_log_info, vha, 0x800e,
1115 	    "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
1116 	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1117 
1118 	return SUCCESS;
1119 
1120 eh_reset_failed:
1121 	ql_log(ql_log_info, vha, 0x800f,
1122 	    "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
1123 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1124 	    cmd);
1125 	return FAILED;
1126 }
1127 
1128 static int
1129 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1130 {
1131 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1132 	struct qla_hw_data *ha = vha->hw;
1133 
1134 	return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1135 	    ha->isp_ops->lun_reset);
1136 }
1137 
1138 static int
1139 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1140 {
1141 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1142 	struct qla_hw_data *ha = vha->hw;
1143 
1144 	return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1145 	    ha->isp_ops->target_reset);
1146 }
1147 
1148 /**************************************************************************
1149 * qla2xxx_eh_bus_reset
1150 *
1151 * Description:
1152 *    The bus reset function will reset the bus and abort any executing
1153 *    commands.
1154 *
1155 * Input:
1156 *    cmd = Linux SCSI command packet of the command that cause the
1157 *          bus reset.
1158 *
1159 * Returns:
1160 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1161 *
1162 **************************************************************************/
1163 static int
1164 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1165 {
1166 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1167 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1168 	int ret = FAILED;
1169 	unsigned int id, lun;
1170 
1171 	id = cmd->device->id;
1172 	lun = cmd->device->lun;
1173 
1174 	if (!fcport) {
1175 		return ret;
1176 	}
1177 
1178 	ret = fc_block_scsi_eh(cmd);
1179 	if (ret != 0)
1180 		return ret;
1181 	ret = FAILED;
1182 
1183 	ql_log(ql_log_info, vha, 0x8012,
1184 	    "BUS RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1185 
1186 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1187 		ql_log(ql_log_fatal, vha, 0x8013,
1188 		    "Wait for hba online failed board disabled.\n");
1189 		goto eh_bus_reset_done;
1190 	}
1191 
1192 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1193 		ret = SUCCESS;
1194 
1195 	if (ret == FAILED)
1196 		goto eh_bus_reset_done;
1197 
1198 	/* Flush outstanding commands. */
1199 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1200 	    QLA_SUCCESS) {
1201 		ql_log(ql_log_warn, vha, 0x8014,
1202 		    "Wait for pending commands failed.\n");
1203 		ret = FAILED;
1204 	}
1205 
1206 eh_bus_reset_done:
1207 	ql_log(ql_log_warn, vha, 0x802b,
1208 	    "BUS RESET %s nexus=%ld:%d:%d.\n",
1209 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1210 
1211 	return ret;
1212 }
1213 
1214 /**************************************************************************
1215 * qla2xxx_eh_host_reset
1216 *
1217 * Description:
1218 *    The reset function will reset the Adapter.
1219 *
1220 * Input:
1221 *      cmd = Linux SCSI command packet of the command that cause the
1222 *            adapter reset.
1223 *
1224 * Returns:
1225 *      Either SUCCESS or FAILED.
1226 *
1227 * Note:
1228 **************************************************************************/
1229 static int
1230 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1231 {
1232 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1233 	struct qla_hw_data *ha = vha->hw;
1234 	int ret = FAILED;
1235 	unsigned int id, lun;
1236 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1237 
1238 	id = cmd->device->id;
1239 	lun = cmd->device->lun;
1240 
1241 	ql_log(ql_log_info, vha, 0x8018,
1242 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1243 
1244 	if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1245 		goto eh_host_reset_lock;
1246 
1247 	if (vha != base_vha) {
1248 		if (qla2x00_vp_abort_isp(vha))
1249 			goto eh_host_reset_lock;
1250 	} else {
1251 		if (IS_QLA82XX(vha->hw)) {
1252 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1253 				/* Ctx reset success */
1254 				ret = SUCCESS;
1255 				goto eh_host_reset_lock;
1256 			}
1257 			/* fall thru if ctx reset failed */
1258 		}
1259 		if (ha->wq)
1260 			flush_workqueue(ha->wq);
1261 
1262 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1263 		if (ha->isp_ops->abort_isp(base_vha)) {
1264 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1265 			/* failed. schedule dpc to try */
1266 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1267 
1268 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1269 				ql_log(ql_log_warn, vha, 0x802a,
1270 				    "wait for hba online failed.\n");
1271 				goto eh_host_reset_lock;
1272 			}
1273 		}
1274 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1275 	}
1276 
1277 	/* Waiting for command to be returned to OS.*/
1278 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1279 		QLA_SUCCESS)
1280 		ret = SUCCESS;
1281 
1282 eh_host_reset_lock:
1283 	ql_log(ql_log_info, vha, 0x8017,
1284 	    "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
1285 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1286 
1287 	return ret;
1288 }
1289 
1290 /*
1291 * qla2x00_loop_reset
1292 *      Issue loop reset.
1293 *
1294 * Input:
1295 *      ha = adapter block pointer.
1296 *
1297 * Returns:
1298 *      0 = success
1299 */
1300 int
1301 qla2x00_loop_reset(scsi_qla_host_t *vha)
1302 {
1303 	int ret;
1304 	struct fc_port *fcport;
1305 	struct qla_hw_data *ha = vha->hw;
1306 
1307 	if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1308 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1309 			if (fcport->port_type != FCT_TARGET)
1310 				continue;
1311 
1312 			ret = ha->isp_ops->target_reset(fcport, 0, 0);
1313 			if (ret != QLA_SUCCESS) {
1314 				ql_dbg(ql_dbg_taskm, vha, 0x802c,
1315 				    "Bus Reset failed: Target Reset=%d "
1316 				    "d_id=%x.\n", ret, fcport->d_id.b24);
1317 			}
1318 		}
1319 	}
1320 
1321 	if (IS_QLAFX00(ha))
1322 		return QLA_SUCCESS;
1323 
1324 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1325 		atomic_set(&vha->loop_state, LOOP_DOWN);
1326 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1327 		qla2x00_mark_all_devices_lost(vha, 0);
1328 		ret = qla2x00_full_login_lip(vha);
1329 		if (ret != QLA_SUCCESS) {
1330 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1331 			    "full_login_lip=%d.\n", ret);
1332 		}
1333 	}
1334 
1335 	if (ha->flags.enable_lip_reset) {
1336 		ret = qla2x00_lip_reset(vha);
1337 		if (ret != QLA_SUCCESS)
1338 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1339 			    "lip_reset failed (%d).\n", ret);
1340 	}
1341 
1342 	/* Issue marker command only when we are going to start the I/O */
1343 	vha->marker_needed = 1;
1344 
1345 	return QLA_SUCCESS;
1346 }
1347 
1348 void
1349 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1350 {
1351 	int que, cnt;
1352 	unsigned long flags;
1353 	srb_t *sp;
1354 	struct qla_hw_data *ha = vha->hw;
1355 	struct req_que *req;
1356 
1357 	spin_lock_irqsave(&ha->hardware_lock, flags);
1358 	for (que = 0; que < ha->max_req_queues; que++) {
1359 		req = ha->req_q_map[que];
1360 		if (!req)
1361 			continue;
1362 		if (!req->outstanding_cmds)
1363 			continue;
1364 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1365 			sp = req->outstanding_cmds[cnt];
1366 			if (sp) {
1367 				req->outstanding_cmds[cnt] = NULL;
1368 				sp->done(vha, sp, res);
1369 			}
1370 		}
1371 	}
1372 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1373 }
1374 
1375 static int
1376 qla2xxx_slave_alloc(struct scsi_device *sdev)
1377 {
1378 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1379 
1380 	if (!rport || fc_remote_port_chkready(rport))
1381 		return -ENXIO;
1382 
1383 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1384 
1385 	return 0;
1386 }
1387 
1388 static int
1389 qla2xxx_slave_configure(struct scsi_device *sdev)
1390 {
1391 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1392 	struct req_que *req = vha->req;
1393 
1394 	if (IS_T10_PI_CAPABLE(vha->hw))
1395 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1396 
1397 	if (sdev->tagged_supported)
1398 		scsi_activate_tcq(sdev, req->max_q_depth);
1399 	else
1400 		scsi_deactivate_tcq(sdev, req->max_q_depth);
1401 	return 0;
1402 }
1403 
1404 static void
1405 qla2xxx_slave_destroy(struct scsi_device *sdev)
1406 {
1407 	sdev->hostdata = NULL;
1408 }
1409 
1410 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1411 {
1412 	fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1413 
1414 	if (!scsi_track_queue_full(sdev, qdepth))
1415 		return;
1416 
1417 	ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1418 	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
1419 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1420 }
1421 
1422 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1423 {
1424 	fc_port_t *fcport = sdev->hostdata;
1425 	struct scsi_qla_host *vha = fcport->vha;
1426 	struct req_que *req = NULL;
1427 
1428 	req = vha->req;
1429 	if (!req)
1430 		return;
1431 
1432 	if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1433 		return;
1434 
1435 	if (sdev->ordered_tags)
1436 		scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1437 	else
1438 		scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1439 
1440 	ql_dbg(ql_dbg_io, vha, 0x302a,
1441 	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
1442 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1443 }
1444 
1445 static int
1446 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1447 {
1448 	switch (reason) {
1449 	case SCSI_QDEPTH_DEFAULT:
1450 		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1451 		break;
1452 	case SCSI_QDEPTH_QFULL:
1453 		qla2x00_handle_queue_full(sdev, qdepth);
1454 		break;
1455 	case SCSI_QDEPTH_RAMP_UP:
1456 		qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1457 		break;
1458 	default:
1459 		return -EOPNOTSUPP;
1460 	}
1461 
1462 	return sdev->queue_depth;
1463 }
1464 
1465 static int
1466 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1467 {
1468 	if (sdev->tagged_supported) {
1469 		scsi_set_tag_type(sdev, tag_type);
1470 		if (tag_type)
1471 			scsi_activate_tcq(sdev, sdev->queue_depth);
1472 		else
1473 			scsi_deactivate_tcq(sdev, sdev->queue_depth);
1474 	} else
1475 		tag_type = 0;
1476 
1477 	return tag_type;
1478 }
1479 
1480 static void
1481 qla2x00_host_ramp_down_queuedepth(scsi_qla_host_t *vha)
1482 {
1483 	scsi_qla_host_t *vp;
1484 	struct Scsi_Host *shost;
1485 	struct scsi_device *sdev;
1486 	struct qla_hw_data *ha = vha->hw;
1487 	unsigned long flags;
1488 
1489 	ha->host_last_rampdown_time = jiffies;
1490 
1491 	if (ha->cfg_lun_q_depth <= vha->host->cmd_per_lun)
1492 		return;
1493 
1494 	if ((ha->cfg_lun_q_depth / 2) < vha->host->cmd_per_lun)
1495 		ha->cfg_lun_q_depth = vha->host->cmd_per_lun;
1496 	else
1497 		ha->cfg_lun_q_depth = ha->cfg_lun_q_depth / 2;
1498 
1499 	/*
1500 	 * Geometrically ramp down the queue depth for all devices on this
1501 	 * adapter
1502 	 */
1503 	spin_lock_irqsave(&ha->vport_slock, flags);
1504 	list_for_each_entry(vp, &ha->vp_list, list) {
1505 		shost = vp->host;
1506 		shost_for_each_device(sdev, shost) {
1507 			if (sdev->queue_depth > shost->cmd_per_lun) {
1508 				if (sdev->queue_depth < ha->cfg_lun_q_depth)
1509 					continue;
1510 				ql_log(ql_log_warn, vp, 0x3031,
1511 				    "%ld:%d:%d: Ramping down queue depth to %d",
1512 				    vp->host_no, sdev->id, sdev->lun,
1513 				    ha->cfg_lun_q_depth);
1514 				qla2x00_change_queue_depth(sdev,
1515 				    ha->cfg_lun_q_depth, SCSI_QDEPTH_DEFAULT);
1516 			}
1517 		}
1518 	}
1519 	spin_unlock_irqrestore(&ha->vport_slock, flags);
1520 
1521 	return;
1522 }
1523 
1524 static void
1525 qla2x00_host_ramp_up_queuedepth(scsi_qla_host_t *vha)
1526 {
1527 	scsi_qla_host_t *vp;
1528 	struct Scsi_Host *shost;
1529 	struct scsi_device *sdev;
1530 	struct qla_hw_data *ha = vha->hw;
1531 	unsigned long flags;
1532 
1533 	ha->host_last_rampup_time = jiffies;
1534 	ha->cfg_lun_q_depth++;
1535 
1536 	/*
1537 	 * Linearly ramp up the queue depth for all devices on this
1538 	 * adapter
1539 	 */
1540 	spin_lock_irqsave(&ha->vport_slock, flags);
1541 	list_for_each_entry(vp, &ha->vp_list, list) {
1542 		shost = vp->host;
1543 		shost_for_each_device(sdev, shost) {
1544 			if (sdev->queue_depth > ha->cfg_lun_q_depth)
1545 				continue;
1546 			qla2x00_change_queue_depth(sdev, ha->cfg_lun_q_depth,
1547 			    SCSI_QDEPTH_RAMP_UP);
1548 		}
1549 	}
1550 	spin_unlock_irqrestore(&ha->vport_slock, flags);
1551 
1552 	return;
1553 }
1554 
1555 /**
1556  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1557  * @ha: HA context
1558  *
1559  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1560  * supported addressing method.
1561  */
1562 static void
1563 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1564 {
1565 	/* Assume a 32bit DMA mask. */
1566 	ha->flags.enable_64bit_addressing = 0;
1567 
1568 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1569 		/* Any upper-dword bits set? */
1570 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1571 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1572 			/* Ok, a 64bit DMA mask is applicable. */
1573 			ha->flags.enable_64bit_addressing = 1;
1574 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1575 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1576 			return;
1577 		}
1578 	}
1579 
1580 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1581 	pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1582 }
1583 
1584 static void
1585 qla2x00_enable_intrs(struct qla_hw_data *ha)
1586 {
1587 	unsigned long flags = 0;
1588 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1589 
1590 	spin_lock_irqsave(&ha->hardware_lock, flags);
1591 	ha->interrupts_on = 1;
1592 	/* enable risc and host interrupts */
1593 	WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1594 	RD_REG_WORD(&reg->ictrl);
1595 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1596 
1597 }
1598 
1599 static void
1600 qla2x00_disable_intrs(struct qla_hw_data *ha)
1601 {
1602 	unsigned long flags = 0;
1603 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1604 
1605 	spin_lock_irqsave(&ha->hardware_lock, flags);
1606 	ha->interrupts_on = 0;
1607 	/* disable risc and host interrupts */
1608 	WRT_REG_WORD(&reg->ictrl, 0);
1609 	RD_REG_WORD(&reg->ictrl);
1610 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1611 }
1612 
1613 static void
1614 qla24xx_enable_intrs(struct qla_hw_data *ha)
1615 {
1616 	unsigned long flags = 0;
1617 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1618 
1619 	spin_lock_irqsave(&ha->hardware_lock, flags);
1620 	ha->interrupts_on = 1;
1621 	WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1622 	RD_REG_DWORD(&reg->ictrl);
1623 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1624 }
1625 
1626 static void
1627 qla24xx_disable_intrs(struct qla_hw_data *ha)
1628 {
1629 	unsigned long flags = 0;
1630 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1631 
1632 	if (IS_NOPOLLING_TYPE(ha))
1633 		return;
1634 	spin_lock_irqsave(&ha->hardware_lock, flags);
1635 	ha->interrupts_on = 0;
1636 	WRT_REG_DWORD(&reg->ictrl, 0);
1637 	RD_REG_DWORD(&reg->ictrl);
1638 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1639 }
1640 
1641 static int
1642 qla2x00_iospace_config(struct qla_hw_data *ha)
1643 {
1644 	resource_size_t pio;
1645 	uint16_t msix;
1646 	int cpus;
1647 
1648 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1649 	    QLA2XXX_DRIVER_NAME)) {
1650 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1651 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1652 		    pci_name(ha->pdev));
1653 		goto iospace_error_exit;
1654 	}
1655 	if (!(ha->bars & 1))
1656 		goto skip_pio;
1657 
1658 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
1659 	pio = pci_resource_start(ha->pdev, 0);
1660 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1661 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1662 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1663 			    "Invalid pci I/O region size (%s).\n",
1664 			    pci_name(ha->pdev));
1665 			pio = 0;
1666 		}
1667 	} else {
1668 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1669 		    "Region #0 no a PIO resource (%s).\n",
1670 		    pci_name(ha->pdev));
1671 		pio = 0;
1672 	}
1673 	ha->pio_address = pio;
1674 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1675 	    "PIO address=%llu.\n",
1676 	    (unsigned long long)ha->pio_address);
1677 
1678 skip_pio:
1679 	/* Use MMIO operations for all accesses. */
1680 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1681 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1682 		    "Region #1 not an MMIO resource (%s), aborting.\n",
1683 		    pci_name(ha->pdev));
1684 		goto iospace_error_exit;
1685 	}
1686 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1687 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1688 		    "Invalid PCI mem region size (%s), aborting.\n",
1689 		    pci_name(ha->pdev));
1690 		goto iospace_error_exit;
1691 	}
1692 
1693 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1694 	if (!ha->iobase) {
1695 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1696 		    "Cannot remap MMIO (%s), aborting.\n",
1697 		    pci_name(ha->pdev));
1698 		goto iospace_error_exit;
1699 	}
1700 
1701 	/* Determine queue resources */
1702 	ha->max_req_queues = ha->max_rsp_queues = 1;
1703 	if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1704 		(ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1705 		(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1706 		goto mqiobase_exit;
1707 
1708 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1709 			pci_resource_len(ha->pdev, 3));
1710 	if (ha->mqiobase) {
1711 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1712 		    "MQIO Base=%p.\n", ha->mqiobase);
1713 		/* Read MSIX vector size of the board */
1714 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1715 		ha->msix_count = msix;
1716 		/* Max queues are bounded by available msix vectors */
1717 		/* queue 0 uses two msix vectors */
1718 		if (ql2xmultique_tag) {
1719 			cpus = num_online_cpus();
1720 			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1721 				(cpus + 1) : (ha->msix_count - 1);
1722 			ha->max_req_queues = 2;
1723 		} else if (ql2xmaxqueues > 1) {
1724 			ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1725 			    QLA_MQ_SIZE : ql2xmaxqueues;
1726 			ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1727 			    "QoS mode set, max no of request queues:%d.\n",
1728 			    ha->max_req_queues);
1729 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1730 			    "QoS mode set, max no of request queues:%d.\n",
1731 			    ha->max_req_queues);
1732 		}
1733 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1734 		    "MSI-X vector count: %d.\n", msix);
1735 	} else
1736 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1737 		    "BAR 3 not enabled.\n");
1738 
1739 mqiobase_exit:
1740 	ha->msix_count = ha->max_rsp_queues + 1;
1741 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1742 	    "MSIX Count:%d.\n", ha->msix_count);
1743 	return (0);
1744 
1745 iospace_error_exit:
1746 	return (-ENOMEM);
1747 }
1748 
1749 
1750 static int
1751 qla83xx_iospace_config(struct qla_hw_data *ha)
1752 {
1753 	uint16_t msix;
1754 	int cpus;
1755 
1756 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1757 	    QLA2XXX_DRIVER_NAME)) {
1758 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
1759 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1760 		    pci_name(ha->pdev));
1761 
1762 		goto iospace_error_exit;
1763 	}
1764 
1765 	/* Use MMIO operations for all accesses. */
1766 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1767 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
1768 		    "Invalid pci I/O region size (%s).\n",
1769 		    pci_name(ha->pdev));
1770 		goto iospace_error_exit;
1771 	}
1772 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1773 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
1774 		    "Invalid PCI mem region size (%s), aborting\n",
1775 			pci_name(ha->pdev));
1776 		goto iospace_error_exit;
1777 	}
1778 
1779 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
1780 	if (!ha->iobase) {
1781 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
1782 		    "Cannot remap MMIO (%s), aborting.\n",
1783 		    pci_name(ha->pdev));
1784 		goto iospace_error_exit;
1785 	}
1786 
1787 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
1788 	/* 83XX 26XX always use MQ type access for queues
1789 	 * - mbar 2, a.k.a region 4 */
1790 	ha->max_req_queues = ha->max_rsp_queues = 1;
1791 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
1792 			pci_resource_len(ha->pdev, 4));
1793 
1794 	if (!ha->mqiobase) {
1795 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
1796 		    "BAR2/region4 not enabled\n");
1797 		goto mqiobase_exit;
1798 	}
1799 
1800 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
1801 			pci_resource_len(ha->pdev, 2));
1802 	if (ha->msixbase) {
1803 		/* Read MSIX vector size of the board */
1804 		pci_read_config_word(ha->pdev,
1805 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
1806 		ha->msix_count = msix;
1807 		/* Max queues are bounded by available msix vectors */
1808 		/* queue 0 uses two msix vectors */
1809 		if (ql2xmultique_tag) {
1810 			cpus = num_online_cpus();
1811 			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1812 				(cpus + 1) : (ha->msix_count - 1);
1813 			ha->max_req_queues = 2;
1814 		} else if (ql2xmaxqueues > 1) {
1815 			ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1816 						QLA_MQ_SIZE : ql2xmaxqueues;
1817 			ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc00c,
1818 			    "QoS mode set, max no of request queues:%d.\n",
1819 			    ha->max_req_queues);
1820 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
1821 			    "QoS mode set, max no of request queues:%d.\n",
1822 			    ha->max_req_queues);
1823 		}
1824 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
1825 		    "MSI-X vector count: %d.\n", msix);
1826 	} else
1827 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
1828 		    "BAR 1 not enabled.\n");
1829 
1830 mqiobase_exit:
1831 	ha->msix_count = ha->max_rsp_queues + 1;
1832 
1833 	qlt_83xx_iospace_config(ha);
1834 
1835 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
1836 	    "MSIX Count:%d.\n", ha->msix_count);
1837 	return 0;
1838 
1839 iospace_error_exit:
1840 	return -ENOMEM;
1841 }
1842 
1843 static struct isp_operations qla2100_isp_ops = {
1844 	.pci_config		= qla2100_pci_config,
1845 	.reset_chip		= qla2x00_reset_chip,
1846 	.chip_diag		= qla2x00_chip_diag,
1847 	.config_rings		= qla2x00_config_rings,
1848 	.reset_adapter		= qla2x00_reset_adapter,
1849 	.nvram_config		= qla2x00_nvram_config,
1850 	.update_fw_options	= qla2x00_update_fw_options,
1851 	.load_risc		= qla2x00_load_risc,
1852 	.pci_info_str		= qla2x00_pci_info_str,
1853 	.fw_version_str		= qla2x00_fw_version_str,
1854 	.intr_handler		= qla2100_intr_handler,
1855 	.enable_intrs		= qla2x00_enable_intrs,
1856 	.disable_intrs		= qla2x00_disable_intrs,
1857 	.abort_command		= qla2x00_abort_command,
1858 	.target_reset		= qla2x00_abort_target,
1859 	.lun_reset		= qla2x00_lun_reset,
1860 	.fabric_login		= qla2x00_login_fabric,
1861 	.fabric_logout		= qla2x00_fabric_logout,
1862 	.calc_req_entries	= qla2x00_calc_iocbs_32,
1863 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
1864 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
1865 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
1866 	.read_nvram		= qla2x00_read_nvram_data,
1867 	.write_nvram		= qla2x00_write_nvram_data,
1868 	.fw_dump		= qla2100_fw_dump,
1869 	.beacon_on		= NULL,
1870 	.beacon_off		= NULL,
1871 	.beacon_blink		= NULL,
1872 	.read_optrom		= qla2x00_read_optrom_data,
1873 	.write_optrom		= qla2x00_write_optrom_data,
1874 	.get_flash_version	= qla2x00_get_flash_version,
1875 	.start_scsi		= qla2x00_start_scsi,
1876 	.abort_isp		= qla2x00_abort_isp,
1877 	.iospace_config     	= qla2x00_iospace_config,
1878 	.initialize_adapter	= qla2x00_initialize_adapter,
1879 };
1880 
1881 static struct isp_operations qla2300_isp_ops = {
1882 	.pci_config		= qla2300_pci_config,
1883 	.reset_chip		= qla2x00_reset_chip,
1884 	.chip_diag		= qla2x00_chip_diag,
1885 	.config_rings		= qla2x00_config_rings,
1886 	.reset_adapter		= qla2x00_reset_adapter,
1887 	.nvram_config		= qla2x00_nvram_config,
1888 	.update_fw_options	= qla2x00_update_fw_options,
1889 	.load_risc		= qla2x00_load_risc,
1890 	.pci_info_str		= qla2x00_pci_info_str,
1891 	.fw_version_str		= qla2x00_fw_version_str,
1892 	.intr_handler		= qla2300_intr_handler,
1893 	.enable_intrs		= qla2x00_enable_intrs,
1894 	.disable_intrs		= qla2x00_disable_intrs,
1895 	.abort_command		= qla2x00_abort_command,
1896 	.target_reset		= qla2x00_abort_target,
1897 	.lun_reset		= qla2x00_lun_reset,
1898 	.fabric_login		= qla2x00_login_fabric,
1899 	.fabric_logout		= qla2x00_fabric_logout,
1900 	.calc_req_entries	= qla2x00_calc_iocbs_32,
1901 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
1902 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
1903 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
1904 	.read_nvram		= qla2x00_read_nvram_data,
1905 	.write_nvram		= qla2x00_write_nvram_data,
1906 	.fw_dump		= qla2300_fw_dump,
1907 	.beacon_on		= qla2x00_beacon_on,
1908 	.beacon_off		= qla2x00_beacon_off,
1909 	.beacon_blink		= qla2x00_beacon_blink,
1910 	.read_optrom		= qla2x00_read_optrom_data,
1911 	.write_optrom		= qla2x00_write_optrom_data,
1912 	.get_flash_version	= qla2x00_get_flash_version,
1913 	.start_scsi		= qla2x00_start_scsi,
1914 	.abort_isp		= qla2x00_abort_isp,
1915 	.iospace_config     	= qla2x00_iospace_config,
1916 	.initialize_adapter	= qla2x00_initialize_adapter,
1917 };
1918 
1919 static struct isp_operations qla24xx_isp_ops = {
1920 	.pci_config		= qla24xx_pci_config,
1921 	.reset_chip		= qla24xx_reset_chip,
1922 	.chip_diag		= qla24xx_chip_diag,
1923 	.config_rings		= qla24xx_config_rings,
1924 	.reset_adapter		= qla24xx_reset_adapter,
1925 	.nvram_config		= qla24xx_nvram_config,
1926 	.update_fw_options	= qla24xx_update_fw_options,
1927 	.load_risc		= qla24xx_load_risc,
1928 	.pci_info_str		= qla24xx_pci_info_str,
1929 	.fw_version_str		= qla24xx_fw_version_str,
1930 	.intr_handler		= qla24xx_intr_handler,
1931 	.enable_intrs		= qla24xx_enable_intrs,
1932 	.disable_intrs		= qla24xx_disable_intrs,
1933 	.abort_command		= qla24xx_abort_command,
1934 	.target_reset		= qla24xx_abort_target,
1935 	.lun_reset		= qla24xx_lun_reset,
1936 	.fabric_login		= qla24xx_login_fabric,
1937 	.fabric_logout		= qla24xx_fabric_logout,
1938 	.calc_req_entries	= NULL,
1939 	.build_iocbs		= NULL,
1940 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
1941 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
1942 	.read_nvram		= qla24xx_read_nvram_data,
1943 	.write_nvram		= qla24xx_write_nvram_data,
1944 	.fw_dump		= qla24xx_fw_dump,
1945 	.beacon_on		= qla24xx_beacon_on,
1946 	.beacon_off		= qla24xx_beacon_off,
1947 	.beacon_blink		= qla24xx_beacon_blink,
1948 	.read_optrom		= qla24xx_read_optrom_data,
1949 	.write_optrom		= qla24xx_write_optrom_data,
1950 	.get_flash_version	= qla24xx_get_flash_version,
1951 	.start_scsi		= qla24xx_start_scsi,
1952 	.abort_isp		= qla2x00_abort_isp,
1953 	.iospace_config     	= qla2x00_iospace_config,
1954 	.initialize_adapter	= qla2x00_initialize_adapter,
1955 };
1956 
1957 static struct isp_operations qla25xx_isp_ops = {
1958 	.pci_config		= qla25xx_pci_config,
1959 	.reset_chip		= qla24xx_reset_chip,
1960 	.chip_diag		= qla24xx_chip_diag,
1961 	.config_rings		= qla24xx_config_rings,
1962 	.reset_adapter		= qla24xx_reset_adapter,
1963 	.nvram_config		= qla24xx_nvram_config,
1964 	.update_fw_options	= qla24xx_update_fw_options,
1965 	.load_risc		= qla24xx_load_risc,
1966 	.pci_info_str		= qla24xx_pci_info_str,
1967 	.fw_version_str		= qla24xx_fw_version_str,
1968 	.intr_handler		= qla24xx_intr_handler,
1969 	.enable_intrs		= qla24xx_enable_intrs,
1970 	.disable_intrs		= qla24xx_disable_intrs,
1971 	.abort_command		= qla24xx_abort_command,
1972 	.target_reset		= qla24xx_abort_target,
1973 	.lun_reset		= qla24xx_lun_reset,
1974 	.fabric_login		= qla24xx_login_fabric,
1975 	.fabric_logout		= qla24xx_fabric_logout,
1976 	.calc_req_entries	= NULL,
1977 	.build_iocbs		= NULL,
1978 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
1979 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
1980 	.read_nvram		= qla25xx_read_nvram_data,
1981 	.write_nvram		= qla25xx_write_nvram_data,
1982 	.fw_dump		= qla25xx_fw_dump,
1983 	.beacon_on		= qla24xx_beacon_on,
1984 	.beacon_off		= qla24xx_beacon_off,
1985 	.beacon_blink		= qla24xx_beacon_blink,
1986 	.read_optrom		= qla25xx_read_optrom_data,
1987 	.write_optrom		= qla24xx_write_optrom_data,
1988 	.get_flash_version	= qla24xx_get_flash_version,
1989 	.start_scsi		= qla24xx_dif_start_scsi,
1990 	.abort_isp		= qla2x00_abort_isp,
1991 	.iospace_config     	= qla2x00_iospace_config,
1992 	.initialize_adapter	= qla2x00_initialize_adapter,
1993 };
1994 
1995 static struct isp_operations qla81xx_isp_ops = {
1996 	.pci_config		= qla25xx_pci_config,
1997 	.reset_chip		= qla24xx_reset_chip,
1998 	.chip_diag		= qla24xx_chip_diag,
1999 	.config_rings		= qla24xx_config_rings,
2000 	.reset_adapter		= qla24xx_reset_adapter,
2001 	.nvram_config		= qla81xx_nvram_config,
2002 	.update_fw_options	= qla81xx_update_fw_options,
2003 	.load_risc		= qla81xx_load_risc,
2004 	.pci_info_str		= qla24xx_pci_info_str,
2005 	.fw_version_str		= qla24xx_fw_version_str,
2006 	.intr_handler		= qla24xx_intr_handler,
2007 	.enable_intrs		= qla24xx_enable_intrs,
2008 	.disable_intrs		= qla24xx_disable_intrs,
2009 	.abort_command		= qla24xx_abort_command,
2010 	.target_reset		= qla24xx_abort_target,
2011 	.lun_reset		= qla24xx_lun_reset,
2012 	.fabric_login		= qla24xx_login_fabric,
2013 	.fabric_logout		= qla24xx_fabric_logout,
2014 	.calc_req_entries	= NULL,
2015 	.build_iocbs		= NULL,
2016 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2017 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2018 	.read_nvram		= NULL,
2019 	.write_nvram		= NULL,
2020 	.fw_dump		= qla81xx_fw_dump,
2021 	.beacon_on		= qla24xx_beacon_on,
2022 	.beacon_off		= qla24xx_beacon_off,
2023 	.beacon_blink		= qla83xx_beacon_blink,
2024 	.read_optrom		= qla25xx_read_optrom_data,
2025 	.write_optrom		= qla24xx_write_optrom_data,
2026 	.get_flash_version	= qla24xx_get_flash_version,
2027 	.start_scsi		= qla24xx_dif_start_scsi,
2028 	.abort_isp		= qla2x00_abort_isp,
2029 	.iospace_config     	= qla2x00_iospace_config,
2030 	.initialize_adapter	= qla2x00_initialize_adapter,
2031 };
2032 
2033 static struct isp_operations qla82xx_isp_ops = {
2034 	.pci_config		= qla82xx_pci_config,
2035 	.reset_chip		= qla82xx_reset_chip,
2036 	.chip_diag		= qla24xx_chip_diag,
2037 	.config_rings		= qla82xx_config_rings,
2038 	.reset_adapter		= qla24xx_reset_adapter,
2039 	.nvram_config		= qla81xx_nvram_config,
2040 	.update_fw_options	= qla24xx_update_fw_options,
2041 	.load_risc		= qla82xx_load_risc,
2042 	.pci_info_str		= qla24xx_pci_info_str,
2043 	.fw_version_str		= qla24xx_fw_version_str,
2044 	.intr_handler		= qla82xx_intr_handler,
2045 	.enable_intrs		= qla82xx_enable_intrs,
2046 	.disable_intrs		= qla82xx_disable_intrs,
2047 	.abort_command		= qla24xx_abort_command,
2048 	.target_reset		= qla24xx_abort_target,
2049 	.lun_reset		= qla24xx_lun_reset,
2050 	.fabric_login		= qla24xx_login_fabric,
2051 	.fabric_logout		= qla24xx_fabric_logout,
2052 	.calc_req_entries	= NULL,
2053 	.build_iocbs		= NULL,
2054 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2055 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2056 	.read_nvram		= qla24xx_read_nvram_data,
2057 	.write_nvram		= qla24xx_write_nvram_data,
2058 	.fw_dump		= qla24xx_fw_dump,
2059 	.beacon_on		= qla82xx_beacon_on,
2060 	.beacon_off		= qla82xx_beacon_off,
2061 	.beacon_blink		= NULL,
2062 	.read_optrom		= qla82xx_read_optrom_data,
2063 	.write_optrom		= qla82xx_write_optrom_data,
2064 	.get_flash_version	= qla24xx_get_flash_version,
2065 	.start_scsi             = qla82xx_start_scsi,
2066 	.abort_isp		= qla82xx_abort_isp,
2067 	.iospace_config     	= qla82xx_iospace_config,
2068 	.initialize_adapter	= qla2x00_initialize_adapter,
2069 };
2070 
2071 static struct isp_operations qla83xx_isp_ops = {
2072 	.pci_config		= qla25xx_pci_config,
2073 	.reset_chip		= qla24xx_reset_chip,
2074 	.chip_diag		= qla24xx_chip_diag,
2075 	.config_rings		= qla24xx_config_rings,
2076 	.reset_adapter		= qla24xx_reset_adapter,
2077 	.nvram_config		= qla81xx_nvram_config,
2078 	.update_fw_options	= qla81xx_update_fw_options,
2079 	.load_risc		= qla81xx_load_risc,
2080 	.pci_info_str		= qla24xx_pci_info_str,
2081 	.fw_version_str		= qla24xx_fw_version_str,
2082 	.intr_handler		= qla24xx_intr_handler,
2083 	.enable_intrs		= qla24xx_enable_intrs,
2084 	.disable_intrs		= qla24xx_disable_intrs,
2085 	.abort_command		= qla24xx_abort_command,
2086 	.target_reset		= qla24xx_abort_target,
2087 	.lun_reset		= qla24xx_lun_reset,
2088 	.fabric_login		= qla24xx_login_fabric,
2089 	.fabric_logout		= qla24xx_fabric_logout,
2090 	.calc_req_entries	= NULL,
2091 	.build_iocbs		= NULL,
2092 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2093 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2094 	.read_nvram		= NULL,
2095 	.write_nvram		= NULL,
2096 	.fw_dump		= qla83xx_fw_dump,
2097 	.beacon_on		= qla24xx_beacon_on,
2098 	.beacon_off		= qla24xx_beacon_off,
2099 	.beacon_blink		= qla83xx_beacon_blink,
2100 	.read_optrom		= qla25xx_read_optrom_data,
2101 	.write_optrom		= qla24xx_write_optrom_data,
2102 	.get_flash_version	= qla24xx_get_flash_version,
2103 	.start_scsi		= qla24xx_dif_start_scsi,
2104 	.abort_isp		= qla2x00_abort_isp,
2105 	.iospace_config		= qla83xx_iospace_config,
2106 	.initialize_adapter	= qla2x00_initialize_adapter,
2107 };
2108 
2109 static struct isp_operations qlafx00_isp_ops = {
2110 	.pci_config		= qlafx00_pci_config,
2111 	.reset_chip		= qlafx00_soft_reset,
2112 	.chip_diag		= qlafx00_chip_diag,
2113 	.config_rings		= qlafx00_config_rings,
2114 	.reset_adapter		= qlafx00_soft_reset,
2115 	.nvram_config		= NULL,
2116 	.update_fw_options	= NULL,
2117 	.load_risc		= NULL,
2118 	.pci_info_str		= qlafx00_pci_info_str,
2119 	.fw_version_str		= qlafx00_fw_version_str,
2120 	.intr_handler		= qlafx00_intr_handler,
2121 	.enable_intrs		= qlafx00_enable_intrs,
2122 	.disable_intrs		= qlafx00_disable_intrs,
2123 	.abort_command		= qlafx00_abort_command,
2124 	.target_reset		= qlafx00_abort_target,
2125 	.lun_reset		= qlafx00_lun_reset,
2126 	.fabric_login		= NULL,
2127 	.fabric_logout		= NULL,
2128 	.calc_req_entries	= NULL,
2129 	.build_iocbs		= NULL,
2130 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2131 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2132 	.read_nvram		= qla24xx_read_nvram_data,
2133 	.write_nvram		= qla24xx_write_nvram_data,
2134 	.fw_dump		= NULL,
2135 	.beacon_on		= qla24xx_beacon_on,
2136 	.beacon_off		= qla24xx_beacon_off,
2137 	.beacon_blink		= NULL,
2138 	.read_optrom		= qla24xx_read_optrom_data,
2139 	.write_optrom		= qla24xx_write_optrom_data,
2140 	.get_flash_version	= qla24xx_get_flash_version,
2141 	.start_scsi		= qlafx00_start_scsi,
2142 	.abort_isp		= qlafx00_abort_isp,
2143 	.iospace_config		= qlafx00_iospace_config,
2144 	.initialize_adapter	= qlafx00_initialize_adapter,
2145 };
2146 
2147 static inline void
2148 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2149 {
2150 	ha->device_type = DT_EXTENDED_IDS;
2151 	switch (ha->pdev->device) {
2152 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2153 		ha->device_type |= DT_ISP2100;
2154 		ha->device_type &= ~DT_EXTENDED_IDS;
2155 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2156 		break;
2157 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2158 		ha->device_type |= DT_ISP2200;
2159 		ha->device_type &= ~DT_EXTENDED_IDS;
2160 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2161 		break;
2162 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2163 		ha->device_type |= DT_ISP2300;
2164 		ha->device_type |= DT_ZIO_SUPPORTED;
2165 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2166 		break;
2167 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2168 		ha->device_type |= DT_ISP2312;
2169 		ha->device_type |= DT_ZIO_SUPPORTED;
2170 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2171 		break;
2172 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2173 		ha->device_type |= DT_ISP2322;
2174 		ha->device_type |= DT_ZIO_SUPPORTED;
2175 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2176 		    ha->pdev->subsystem_device == 0x0170)
2177 			ha->device_type |= DT_OEM_001;
2178 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2179 		break;
2180 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2181 		ha->device_type |= DT_ISP6312;
2182 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2183 		break;
2184 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2185 		ha->device_type |= DT_ISP6322;
2186 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2187 		break;
2188 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2189 		ha->device_type |= DT_ISP2422;
2190 		ha->device_type |= DT_ZIO_SUPPORTED;
2191 		ha->device_type |= DT_FWI2;
2192 		ha->device_type |= DT_IIDMA;
2193 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2194 		break;
2195 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2196 		ha->device_type |= DT_ISP2432;
2197 		ha->device_type |= DT_ZIO_SUPPORTED;
2198 		ha->device_type |= DT_FWI2;
2199 		ha->device_type |= DT_IIDMA;
2200 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2201 		break;
2202 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2203 		ha->device_type |= DT_ISP8432;
2204 		ha->device_type |= DT_ZIO_SUPPORTED;
2205 		ha->device_type |= DT_FWI2;
2206 		ha->device_type |= DT_IIDMA;
2207 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2208 		break;
2209 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2210 		ha->device_type |= DT_ISP5422;
2211 		ha->device_type |= DT_FWI2;
2212 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2213 		break;
2214 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2215 		ha->device_type |= DT_ISP5432;
2216 		ha->device_type |= DT_FWI2;
2217 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2218 		break;
2219 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2220 		ha->device_type |= DT_ISP2532;
2221 		ha->device_type |= DT_ZIO_SUPPORTED;
2222 		ha->device_type |= DT_FWI2;
2223 		ha->device_type |= DT_IIDMA;
2224 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2225 		break;
2226 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2227 		ha->device_type |= DT_ISP8001;
2228 		ha->device_type |= DT_ZIO_SUPPORTED;
2229 		ha->device_type |= DT_FWI2;
2230 		ha->device_type |= DT_IIDMA;
2231 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2232 		break;
2233 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2234 		ha->device_type |= DT_ISP8021;
2235 		ha->device_type |= DT_ZIO_SUPPORTED;
2236 		ha->device_type |= DT_FWI2;
2237 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2238 		/* Initialize 82XX ISP flags */
2239 		qla82xx_init_flags(ha);
2240 		break;
2241 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2242 		ha->device_type |= DT_ISP2031;
2243 		ha->device_type |= DT_ZIO_SUPPORTED;
2244 		ha->device_type |= DT_FWI2;
2245 		ha->device_type |= DT_IIDMA;
2246 		ha->device_type |= DT_T10_PI;
2247 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2248 		break;
2249 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2250 		ha->device_type |= DT_ISP8031;
2251 		ha->device_type |= DT_ZIO_SUPPORTED;
2252 		ha->device_type |= DT_FWI2;
2253 		ha->device_type |= DT_IIDMA;
2254 		ha->device_type |= DT_T10_PI;
2255 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2256 		break;
2257 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2258 		ha->device_type |= DT_ISPFX00;
2259 		break;
2260 	}
2261 
2262 	if (IS_QLA82XX(ha))
2263 		ha->port_no = !(ha->portnum & 1);
2264 	else
2265 		/* Get adapter physical port no from interrupt pin register. */
2266 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2267 
2268 	if (ha->port_no & 1)
2269 		ha->flags.port0 = 1;
2270 	else
2271 		ha->flags.port0 = 0;
2272 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2273 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2274 	    ha->device_type, ha->flags.port0, ha->fw_srisc_address);
2275 }
2276 
2277 static void
2278 qla2xxx_scan_start(struct Scsi_Host *shost)
2279 {
2280 	scsi_qla_host_t *vha = shost_priv(shost);
2281 
2282 	if (vha->hw->flags.running_gold_fw)
2283 		return;
2284 
2285 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2286 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2287 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2288 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2289 }
2290 
2291 static int
2292 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2293 {
2294 	scsi_qla_host_t *vha = shost_priv(shost);
2295 
2296 	if (!vha->host)
2297 		return 1;
2298 	if (time > vha->hw->loop_reset_delay * HZ)
2299 		return 1;
2300 
2301 	return atomic_read(&vha->loop_state) == LOOP_READY;
2302 }
2303 
2304 /*
2305  * PCI driver interface
2306  */
2307 static int
2308 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2309 {
2310 	int	ret = -ENODEV;
2311 	struct Scsi_Host *host;
2312 	scsi_qla_host_t *base_vha = NULL;
2313 	struct qla_hw_data *ha;
2314 	char pci_info[30];
2315 	char fw_str[30], wq_name[30];
2316 	struct scsi_host_template *sht;
2317 	int bars, mem_only = 0;
2318 	uint16_t req_length = 0, rsp_length = 0;
2319 	struct req_que *req = NULL;
2320 	struct rsp_que *rsp = NULL;
2321 
2322 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2323 	sht = &qla2xxx_driver_template;
2324 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2325 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2326 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2327 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2328 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2329 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2330 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2331 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2332 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2333 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2334 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001) {
2335 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2336 		mem_only = 1;
2337 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2338 		    "Mem only adapter.\n");
2339 	}
2340 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2341 	    "Bars=%d.\n", bars);
2342 
2343 	if (mem_only) {
2344 		if (pci_enable_device_mem(pdev))
2345 			goto probe_out;
2346 	} else {
2347 		if (pci_enable_device(pdev))
2348 			goto probe_out;
2349 	}
2350 
2351 	/* This may fail but that's ok */
2352 	pci_enable_pcie_error_reporting(pdev);
2353 
2354 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2355 	if (!ha) {
2356 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2357 		    "Unable to allocate memory for ha.\n");
2358 		goto probe_out;
2359 	}
2360 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2361 	    "Memory allocated for ha=%p.\n", ha);
2362 	ha->pdev = pdev;
2363 	ha->tgt.enable_class_2 = ql2xenableclass2;
2364 
2365 	/* Clear our data area */
2366 	ha->bars = bars;
2367 	ha->mem_only = mem_only;
2368 	spin_lock_init(&ha->hardware_lock);
2369 	spin_lock_init(&ha->vport_slock);
2370 	mutex_init(&ha->selflogin_lock);
2371 
2372 	/* Set ISP-type information. */
2373 	qla2x00_set_isp_flags(ha);
2374 
2375 	/* Set EEH reset type to fundamental if required by hba */
2376 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2377 	    IS_QLA83XX(ha))
2378 		pdev->needs_freset = 1;
2379 
2380 	ha->prev_topology = 0;
2381 	ha->init_cb_size = sizeof(init_cb_t);
2382 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
2383 	ha->optrom_size = OPTROM_SIZE_2300;
2384 	ha->cfg_lun_q_depth = ql2xmaxqdepth;
2385 
2386 	/* Assign ISP specific operations. */
2387 	if (IS_QLA2100(ha)) {
2388 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2389 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2390 		req_length = REQUEST_ENTRY_CNT_2100;
2391 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2392 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2393 		ha->gid_list_info_size = 4;
2394 		ha->flash_conf_off = ~0;
2395 		ha->flash_data_off = ~0;
2396 		ha->nvram_conf_off = ~0;
2397 		ha->nvram_data_off = ~0;
2398 		ha->isp_ops = &qla2100_isp_ops;
2399 	} else if (IS_QLA2200(ha)) {
2400 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2401 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2402 		req_length = REQUEST_ENTRY_CNT_2200;
2403 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2404 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2405 		ha->gid_list_info_size = 4;
2406 		ha->flash_conf_off = ~0;
2407 		ha->flash_data_off = ~0;
2408 		ha->nvram_conf_off = ~0;
2409 		ha->nvram_data_off = ~0;
2410 		ha->isp_ops = &qla2100_isp_ops;
2411 	} else if (IS_QLA23XX(ha)) {
2412 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2413 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2414 		req_length = REQUEST_ENTRY_CNT_2200;
2415 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2416 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2417 		ha->gid_list_info_size = 6;
2418 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
2419 			ha->optrom_size = OPTROM_SIZE_2322;
2420 		ha->flash_conf_off = ~0;
2421 		ha->flash_data_off = ~0;
2422 		ha->nvram_conf_off = ~0;
2423 		ha->nvram_data_off = ~0;
2424 		ha->isp_ops = &qla2300_isp_ops;
2425 	} else if (IS_QLA24XX_TYPE(ha)) {
2426 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2427 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2428 		req_length = REQUEST_ENTRY_CNT_24XX;
2429 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2430 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2431 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2432 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2433 		ha->gid_list_info_size = 8;
2434 		ha->optrom_size = OPTROM_SIZE_24XX;
2435 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2436 		ha->isp_ops = &qla24xx_isp_ops;
2437 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2438 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2439 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2440 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2441 	} else if (IS_QLA25XX(ha)) {
2442 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2443 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2444 		req_length = REQUEST_ENTRY_CNT_24XX;
2445 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2446 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2447 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2448 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2449 		ha->gid_list_info_size = 8;
2450 		ha->optrom_size = OPTROM_SIZE_25XX;
2451 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2452 		ha->isp_ops = &qla25xx_isp_ops;
2453 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2454 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2455 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2456 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2457 	} else if (IS_QLA81XX(ha)) {
2458 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2459 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2460 		req_length = REQUEST_ENTRY_CNT_24XX;
2461 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2462 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2463 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2464 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2465 		ha->gid_list_info_size = 8;
2466 		ha->optrom_size = OPTROM_SIZE_81XX;
2467 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2468 		ha->isp_ops = &qla81xx_isp_ops;
2469 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2470 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2471 		ha->nvram_conf_off = ~0;
2472 		ha->nvram_data_off = ~0;
2473 	} else if (IS_QLA82XX(ha)) {
2474 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2475 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2476 		req_length = REQUEST_ENTRY_CNT_82XX;
2477 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2478 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2479 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2480 		ha->gid_list_info_size = 8;
2481 		ha->optrom_size = OPTROM_SIZE_82XX;
2482 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2483 		ha->isp_ops = &qla82xx_isp_ops;
2484 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2485 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2486 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2487 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2488 	} else if (IS_QLA83XX(ha)) {
2489 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
2490 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2491 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2492 		req_length = REQUEST_ENTRY_CNT_24XX;
2493 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2494 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2495 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2496 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2497 		ha->gid_list_info_size = 8;
2498 		ha->optrom_size = OPTROM_SIZE_83XX;
2499 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2500 		ha->isp_ops = &qla83xx_isp_ops;
2501 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2502 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2503 		ha->nvram_conf_off = ~0;
2504 		ha->nvram_data_off = ~0;
2505 	}  else if (IS_QLAFX00(ha)) {
2506 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
2507 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
2508 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
2509 		req_length = REQUEST_ENTRY_CNT_FX00;
2510 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
2511 		ha->init_cb_size = sizeof(struct init_cb_fx);
2512 		ha->isp_ops = &qlafx00_isp_ops;
2513 		ha->port_down_retry_count = 30; /* default value */
2514 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
2515 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
2516 		ha->mr.fw_hbt_en = 1;
2517 	}
2518 
2519 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2520 	    "mbx_count=%d, req_length=%d, "
2521 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2522 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
2523 	    "max_fibre_devices=%d.\n",
2524 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2525 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2526 	    ha->nvram_npiv_size, ha->max_fibre_devices);
2527 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2528 	    "isp_ops=%p, flash_conf_off=%d, "
2529 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2530 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2531 	    ha->nvram_conf_off, ha->nvram_data_off);
2532 
2533 	/* Configure PCI I/O space */
2534 	ret = ha->isp_ops->iospace_config(ha);
2535 	if (ret)
2536 		goto iospace_config_failed;
2537 
2538 	ql_log_pci(ql_log_info, pdev, 0x001d,
2539 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
2540 	    pdev->device, pdev->irq, ha->iobase);
2541 	mutex_init(&ha->vport_lock);
2542 	init_completion(&ha->mbx_cmd_comp);
2543 	complete(&ha->mbx_cmd_comp);
2544 	init_completion(&ha->mbx_intr_comp);
2545 	init_completion(&ha->dcbx_comp);
2546 	init_completion(&ha->lb_portup_comp);
2547 
2548 	set_bit(0, (unsigned long *) ha->vp_idx_map);
2549 
2550 	qla2x00_config_dma_addressing(ha);
2551 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2552 	    "64 Bit addressing is %s.\n",
2553 	    ha->flags.enable_64bit_addressing ? "enable" :
2554 	    "disable");
2555 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2556 	if (!ret) {
2557 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
2558 		    "Failed to allocate memory for adapter, aborting.\n");
2559 
2560 		goto probe_hw_failed;
2561 	}
2562 
2563 	req->max_q_depth = MAX_Q_DEPTH;
2564 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2565 		req->max_q_depth = ql2xmaxqdepth;
2566 
2567 
2568 	base_vha = qla2x00_create_host(sht, ha);
2569 	if (!base_vha) {
2570 		ret = -ENOMEM;
2571 		qla2x00_mem_free(ha);
2572 		qla2x00_free_req_que(ha, req);
2573 		qla2x00_free_rsp_que(ha, rsp);
2574 		goto probe_hw_failed;
2575 	}
2576 
2577 	pci_set_drvdata(pdev, base_vha);
2578 
2579 	host = base_vha->host;
2580 	base_vha->req = req;
2581 	if (IS_QLAFX00(ha))
2582 		host->can_queue = 1024;
2583 	else
2584 		host->can_queue = req->length + 128;
2585 	if (IS_QLA2XXX_MIDTYPE(ha))
2586 		base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2587 	else
2588 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2589 						base_vha->vp_idx;
2590 
2591 	/* Setup fcport template structure. */
2592 	ha->mr.fcport.vha = base_vha;
2593 	ha->mr.fcport.port_type = FCT_UNKNOWN;
2594 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
2595 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
2596 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
2597 	ha->mr.fcport.scan_state = 1;
2598 
2599 	/* Set the SG table size based on ISP type */
2600 	if (!IS_FWI2_CAPABLE(ha)) {
2601 		if (IS_QLA2100(ha))
2602 			host->sg_tablesize = 32;
2603 	} else {
2604 		if (!IS_QLA82XX(ha))
2605 			host->sg_tablesize = QLA_SG_ALL;
2606 	}
2607 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
2608 	    "can_queue=%d, req=%p, "
2609 	    "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2610 	    host->can_queue, base_vha->req,
2611 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2612 	host->max_id = ha->max_fibre_devices;
2613 	host->cmd_per_lun = 3;
2614 	host->unique_id = host->host_no;
2615 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2616 		host->max_cmd_len = 32;
2617 	else
2618 		host->max_cmd_len = MAX_CMDSZ;
2619 	host->max_channel = MAX_BUSES - 1;
2620 	host->max_lun = ql2xmaxlun;
2621 	host->transportt = qla2xxx_transport_template;
2622 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2623 
2624 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
2625 	    "max_id=%d this_id=%d "
2626 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2627 	    "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
2628 	    host->this_id, host->cmd_per_lun, host->unique_id,
2629 	    host->max_cmd_len, host->max_channel, host->max_lun,
2630 	    host->transportt, sht->vendor_id);
2631 
2632 que_init:
2633 	/* Alloc arrays of request and response ring ptrs */
2634 	if (!qla2x00_alloc_queues(ha, req, rsp)) {
2635 		ql_log(ql_log_fatal, base_vha, 0x003d,
2636 		    "Failed to allocate memory for queue pointers..."
2637 		    "aborting.\n");
2638 		goto probe_init_failed;
2639 	}
2640 
2641 	qlt_probe_one_stage1(base_vha, ha);
2642 
2643 	/* Set up the irqs */
2644 	ret = qla2x00_request_irqs(ha, rsp);
2645 	if (ret)
2646 		goto probe_init_failed;
2647 
2648 	pci_save_state(pdev);
2649 
2650 	/* Assign back pointers */
2651 	rsp->req = req;
2652 	req->rsp = rsp;
2653 
2654 	if (IS_QLAFX00(ha)) {
2655 		ha->rsp_q_map[0] = rsp;
2656 		ha->req_q_map[0] = req;
2657 		set_bit(0, ha->req_qid_map);
2658 		set_bit(0, ha->rsp_qid_map);
2659 	}
2660 
2661 	/* FWI2-capable only. */
2662 	req->req_q_in = &ha->iobase->isp24.req_q_in;
2663 	req->req_q_out = &ha->iobase->isp24.req_q_out;
2664 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2665 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2666 	if (ha->mqenable || IS_QLA83XX(ha)) {
2667 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2668 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2669 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2670 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2671 	}
2672 
2673 	if (IS_QLAFX00(ha)) {
2674 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
2675 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
2676 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
2677 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
2678 	}
2679 
2680 	if (IS_QLA82XX(ha)) {
2681 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2682 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2683 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2684 	}
2685 
2686 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2687 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2688 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2689 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2690 	    "req->req_q_in=%p req->req_q_out=%p "
2691 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2692 	    req->req_q_in, req->req_q_out,
2693 	    rsp->rsp_q_in, rsp->rsp_q_out);
2694 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
2695 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2696 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2697 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
2698 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2699 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2700 
2701 	if (ha->isp_ops->initialize_adapter(base_vha)) {
2702 		ql_log(ql_log_fatal, base_vha, 0x00d6,
2703 		    "Failed to initialize adapter - Adapter flags %x.\n",
2704 		    base_vha->device_flags);
2705 
2706 		if (IS_QLA82XX(ha)) {
2707 			qla82xx_idc_lock(ha);
2708 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2709 				QLA8XXX_DEV_FAILED);
2710 			qla82xx_idc_unlock(ha);
2711 			ql_log(ql_log_fatal, base_vha, 0x00d7,
2712 			    "HW State: FAILED.\n");
2713 		}
2714 
2715 		ret = -ENODEV;
2716 		goto probe_failed;
2717 	}
2718 
2719 	if (ha->mqenable) {
2720 		if (qla25xx_setup_mode(base_vha)) {
2721 			ql_log(ql_log_warn, base_vha, 0x00ec,
2722 			    "Failed to create queues, falling back to single queue mode.\n");
2723 			goto que_init;
2724 		}
2725 	}
2726 
2727 	if (ha->flags.running_gold_fw)
2728 		goto skip_dpc;
2729 
2730 	/*
2731 	 * Startup the kernel thread for this host adapter
2732 	 */
2733 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2734 	    "%s_dpc", base_vha->host_str);
2735 	if (IS_ERR(ha->dpc_thread)) {
2736 		ql_log(ql_log_fatal, base_vha, 0x00ed,
2737 		    "Failed to start DPC thread.\n");
2738 		ret = PTR_ERR(ha->dpc_thread);
2739 		goto probe_failed;
2740 	}
2741 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2742 	    "DPC thread started successfully.\n");
2743 
2744 	/*
2745 	 * If we're not coming up in initiator mode, we might sit for
2746 	 * a while without waking up the dpc thread, which leads to a
2747 	 * stuck process warning.  So just kick the dpc once here and
2748 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
2749 	 */
2750 	qla2xxx_wake_dpc(base_vha);
2751 
2752 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
2753 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
2754 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
2755 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
2756 
2757 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
2758 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
2759 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
2760 		INIT_WORK(&ha->idc_state_handler,
2761 		    qla83xx_idc_state_handler_work);
2762 		INIT_WORK(&ha->nic_core_unrecoverable,
2763 		    qla83xx_nic_core_unrecoverable_work);
2764 	}
2765 
2766 skip_dpc:
2767 	list_add_tail(&base_vha->list, &ha->vp_list);
2768 	base_vha->host->irq = ha->pdev->irq;
2769 
2770 	/* Initialized the timer */
2771 	qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2772 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2773 	    "Started qla2x00_timer with "
2774 	    "interval=%d.\n", WATCH_INTERVAL);
2775 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2776 	    "Detected hba at address=%p.\n",
2777 	    ha);
2778 
2779 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2780 		if (ha->fw_attributes & BIT_4) {
2781 			int prot = 0, guard;
2782 			base_vha->flags.difdix_supported = 1;
2783 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2784 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
2785 			if (ql2xenabledif == 1)
2786 				prot = SHOST_DIX_TYPE0_PROTECTION;
2787 			scsi_host_set_prot(host,
2788 			    prot | SHOST_DIF_TYPE1_PROTECTION
2789 			    | SHOST_DIF_TYPE2_PROTECTION
2790 			    | SHOST_DIF_TYPE3_PROTECTION
2791 			    | SHOST_DIX_TYPE1_PROTECTION
2792 			    | SHOST_DIX_TYPE2_PROTECTION
2793 			    | SHOST_DIX_TYPE3_PROTECTION);
2794 
2795 			guard = SHOST_DIX_GUARD_CRC;
2796 
2797 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
2798 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
2799 				guard |= SHOST_DIX_GUARD_IP;
2800 
2801 			scsi_host_set_guard(host, guard);
2802 		} else
2803 			base_vha->flags.difdix_supported = 0;
2804 	}
2805 
2806 	ha->isp_ops->enable_intrs(ha);
2807 
2808 	ret = scsi_add_host(host, &pdev->dev);
2809 	if (ret)
2810 		goto probe_failed;
2811 
2812 	base_vha->flags.init_done = 1;
2813 	base_vha->flags.online = 1;
2814 
2815 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2816 	    "Init done and hba is online.\n");
2817 
2818 	if (qla_ini_mode_enabled(base_vha))
2819 		scsi_scan_host(host);
2820 	else
2821 		ql_dbg(ql_dbg_init, base_vha, 0x0122,
2822 			"skipping scsi_scan_host() for non-initiator port\n");
2823 
2824 	qla2x00_alloc_sysfs_attr(base_vha);
2825 
2826 	if (IS_QLAFX00(ha)) {
2827 		ret = qlafx00_fx_disc(base_vha,
2828 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
2829 
2830 		ret = qlafx00_fx_disc(base_vha,
2831 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
2832 
2833 		/* Register system information */
2834 		ret =  qlafx00_fx_disc(base_vha,
2835 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
2836 	}
2837 
2838 	qla2x00_init_host_attr(base_vha);
2839 
2840 	qla2x00_dfs_setup(base_vha);
2841 
2842 	ql_log(ql_log_info, base_vha, 0x00fb,
2843 	    "QLogic %s - %s.\n",
2844 	    ha->model_number, ha->model_desc ? ha->model_desc : "");
2845 	ql_log(ql_log_info, base_vha, 0x00fc,
2846 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2847 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2848 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2849 	    base_vha->host_no,
2850 	    ha->isp_ops->fw_version_str(base_vha, fw_str));
2851 
2852 	qlt_add_target(ha, base_vha);
2853 
2854 	return 0;
2855 
2856 probe_init_failed:
2857 	qla2x00_free_req_que(ha, req);
2858 	ha->req_q_map[0] = NULL;
2859 	clear_bit(0, ha->req_qid_map);
2860 	qla2x00_free_rsp_que(ha, rsp);
2861 	ha->rsp_q_map[0] = NULL;
2862 	clear_bit(0, ha->rsp_qid_map);
2863 	ha->max_req_queues = ha->max_rsp_queues = 0;
2864 
2865 probe_failed:
2866 	if (base_vha->timer_active)
2867 		qla2x00_stop_timer(base_vha);
2868 	base_vha->flags.online = 0;
2869 	if (ha->dpc_thread) {
2870 		struct task_struct *t = ha->dpc_thread;
2871 
2872 		ha->dpc_thread = NULL;
2873 		kthread_stop(t);
2874 	}
2875 
2876 	qla2x00_free_device(base_vha);
2877 
2878 	scsi_host_put(base_vha->host);
2879 
2880 probe_hw_failed:
2881 	if (IS_QLA82XX(ha)) {
2882 		qla82xx_idc_lock(ha);
2883 		qla82xx_clear_drv_active(ha);
2884 		qla82xx_idc_unlock(ha);
2885 	}
2886 iospace_config_failed:
2887 	if (IS_QLA82XX(ha)) {
2888 		if (!ha->nx_pcibase)
2889 			iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2890 		if (!ql2xdbwr)
2891 			iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2892 	} else {
2893 		if (ha->iobase)
2894 			iounmap(ha->iobase);
2895 		if (ha->cregbase)
2896 			iounmap(ha->cregbase);
2897 	}
2898 	pci_release_selected_regions(ha->pdev, ha->bars);
2899 	kfree(ha);
2900 	ha = NULL;
2901 
2902 probe_out:
2903 	pci_disable_device(pdev);
2904 	return ret;
2905 }
2906 
2907 static void
2908 qla2x00_stop_dpc_thread(scsi_qla_host_t *vha)
2909 {
2910 	struct qla_hw_data *ha = vha->hw;
2911 	struct task_struct *t = ha->dpc_thread;
2912 
2913 	if (ha->dpc_thread == NULL)
2914 		return;
2915 	/*
2916 	 * qla2xxx_wake_dpc checks for ->dpc_thread
2917 	 * so we need to zero it out.
2918 	 */
2919 	ha->dpc_thread = NULL;
2920 	kthread_stop(t);
2921 }
2922 
2923 static void
2924 qla2x00_shutdown(struct pci_dev *pdev)
2925 {
2926 	scsi_qla_host_t *vha;
2927 	struct qla_hw_data  *ha;
2928 
2929 	if (!atomic_read(&pdev->enable_cnt))
2930 		return;
2931 
2932 	vha = pci_get_drvdata(pdev);
2933 	ha = vha->hw;
2934 
2935 	/* Turn-off FCE trace */
2936 	if (ha->flags.fce_enabled) {
2937 		qla2x00_disable_fce_trace(vha, NULL, NULL);
2938 		ha->flags.fce_enabled = 0;
2939 	}
2940 
2941 	/* Turn-off EFT trace */
2942 	if (ha->eft)
2943 		qla2x00_disable_eft_trace(vha);
2944 
2945 	/* Stop currently executing firmware. */
2946 	qla2x00_try_to_stop_firmware(vha);
2947 
2948 	/* Turn adapter off line */
2949 	vha->flags.online = 0;
2950 
2951 	/* turn-off interrupts on the card */
2952 	if (ha->interrupts_on) {
2953 		vha->flags.init_done = 0;
2954 		ha->isp_ops->disable_intrs(ha);
2955 	}
2956 
2957 	qla2x00_free_irqs(vha);
2958 
2959 	qla2x00_free_fw_dump(ha);
2960 }
2961 
2962 static void
2963 qla2x00_remove_one(struct pci_dev *pdev)
2964 {
2965 	scsi_qla_host_t *base_vha, *vha;
2966 	struct qla_hw_data  *ha;
2967 	unsigned long flags;
2968 
2969 	/*
2970 	 * If the PCI device is disabled that means that probe failed and any
2971 	 * resources should be have cleaned up on probe exit.
2972 	 */
2973 	if (!atomic_read(&pdev->enable_cnt))
2974 		return;
2975 
2976 	base_vha = pci_get_drvdata(pdev);
2977 	ha = base_vha->hw;
2978 
2979 	ha->flags.host_shutting_down = 1;
2980 
2981 	set_bit(UNLOADING, &base_vha->dpc_flags);
2982 	mutex_lock(&ha->vport_lock);
2983 	while (ha->cur_vport_count) {
2984 		struct Scsi_Host *scsi_host;
2985 
2986 		spin_lock_irqsave(&ha->vport_slock, flags);
2987 
2988 		BUG_ON(base_vha->list.next == &ha->vp_list);
2989 		/* This assumes first entry in ha->vp_list is always base vha */
2990 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
2991 		scsi_host = scsi_host_get(vha->host);
2992 
2993 		spin_unlock_irqrestore(&ha->vport_slock, flags);
2994 		mutex_unlock(&ha->vport_lock);
2995 
2996 		fc_vport_terminate(vha->fc_vport);
2997 		scsi_host_put(vha->host);
2998 
2999 		mutex_lock(&ha->vport_lock);
3000 	}
3001 	mutex_unlock(&ha->vport_lock);
3002 
3003 	if (IS_QLA8031(ha)) {
3004 		ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3005 		    "Clearing fcoe driver presence.\n");
3006 		if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3007 			ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3008 			    "Error while clearing DRV-Presence.\n");
3009 	}
3010 
3011 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3012 
3013 	qla2x00_dfs_remove(base_vha);
3014 
3015 	qla84xx_put_chip(base_vha);
3016 
3017 	/* Disable timer */
3018 	if (base_vha->timer_active)
3019 		qla2x00_stop_timer(base_vha);
3020 
3021 	base_vha->flags.online = 0;
3022 
3023 	/* Flush the work queue and remove it */
3024 	if (ha->wq) {
3025 		flush_workqueue(ha->wq);
3026 		destroy_workqueue(ha->wq);
3027 		ha->wq = NULL;
3028 	}
3029 
3030 	/* Cancel all work and destroy DPC workqueues */
3031 	if (ha->dpc_lp_wq) {
3032 		cancel_work_sync(&ha->idc_aen);
3033 		destroy_workqueue(ha->dpc_lp_wq);
3034 		ha->dpc_lp_wq = NULL;
3035 	}
3036 
3037 	if (ha->dpc_hp_wq) {
3038 		cancel_work_sync(&ha->nic_core_reset);
3039 		cancel_work_sync(&ha->idc_state_handler);
3040 		cancel_work_sync(&ha->nic_core_unrecoverable);
3041 		destroy_workqueue(ha->dpc_hp_wq);
3042 		ha->dpc_hp_wq = NULL;
3043 	}
3044 
3045 	/* Kill the kernel thread for this host */
3046 	if (ha->dpc_thread) {
3047 		struct task_struct *t = ha->dpc_thread;
3048 
3049 		/*
3050 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3051 		 * so we need to zero it out.
3052 		 */
3053 		ha->dpc_thread = NULL;
3054 		kthread_stop(t);
3055 	}
3056 	qlt_remove_target(ha, base_vha);
3057 
3058 	qla2x00_free_sysfs_attr(base_vha);
3059 
3060 	fc_remove_host(base_vha->host);
3061 
3062 	scsi_remove_host(base_vha->host);
3063 
3064 	qla2x00_free_device(base_vha);
3065 
3066 	scsi_host_put(base_vha->host);
3067 
3068 	if (IS_QLA82XX(ha)) {
3069 		qla82xx_idc_lock(ha);
3070 		qla82xx_clear_drv_active(ha);
3071 		qla82xx_idc_unlock(ha);
3072 
3073 		iounmap((device_reg_t __iomem *)ha->nx_pcibase);
3074 		if (!ql2xdbwr)
3075 			iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
3076 	} else {
3077 		if (ha->iobase)
3078 			iounmap(ha->iobase);
3079 
3080 		if (ha->cregbase)
3081 			iounmap(ha->cregbase);
3082 
3083 		if (ha->mqiobase)
3084 			iounmap(ha->mqiobase);
3085 
3086 		if (IS_QLA83XX(ha) && ha->msixbase)
3087 			iounmap(ha->msixbase);
3088 	}
3089 
3090 	pci_release_selected_regions(ha->pdev, ha->bars);
3091 	kfree(ha);
3092 	ha = NULL;
3093 
3094 	pci_disable_pcie_error_reporting(pdev);
3095 
3096 	pci_disable_device(pdev);
3097 	pci_set_drvdata(pdev, NULL);
3098 }
3099 
3100 static void
3101 qla2x00_free_device(scsi_qla_host_t *vha)
3102 {
3103 	struct qla_hw_data *ha = vha->hw;
3104 
3105 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3106 
3107 	/* Disable timer */
3108 	if (vha->timer_active)
3109 		qla2x00_stop_timer(vha);
3110 
3111 	qla2x00_stop_dpc_thread(vha);
3112 
3113 	qla25xx_delete_queues(vha);
3114 	if (ha->flags.fce_enabled)
3115 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3116 
3117 	if (ha->eft)
3118 		qla2x00_disable_eft_trace(vha);
3119 
3120 	/* Stop currently executing firmware. */
3121 	qla2x00_try_to_stop_firmware(vha);
3122 
3123 	vha->flags.online = 0;
3124 
3125 	/* turn-off interrupts on the card */
3126 	if (ha->interrupts_on) {
3127 		vha->flags.init_done = 0;
3128 		ha->isp_ops->disable_intrs(ha);
3129 	}
3130 
3131 	qla2x00_free_irqs(vha);
3132 
3133 	qla2x00_free_fcports(vha);
3134 
3135 	qla2x00_mem_free(ha);
3136 
3137 	qla82xx_md_free(vha);
3138 
3139 	qla2x00_free_queues(ha);
3140 }
3141 
3142 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3143 {
3144 	fc_port_t *fcport, *tfcport;
3145 
3146 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
3147 		list_del(&fcport->list);
3148 		qla2x00_clear_loop_id(fcport);
3149 		kfree(fcport);
3150 		fcport = NULL;
3151 	}
3152 }
3153 
3154 static inline void
3155 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
3156     int defer)
3157 {
3158 	struct fc_rport *rport;
3159 	scsi_qla_host_t *base_vha;
3160 	unsigned long flags;
3161 
3162 	if (!fcport->rport)
3163 		return;
3164 
3165 	rport = fcport->rport;
3166 	if (defer) {
3167 		base_vha = pci_get_drvdata(vha->hw->pdev);
3168 		spin_lock_irqsave(vha->host->host_lock, flags);
3169 		fcport->drport = rport;
3170 		spin_unlock_irqrestore(vha->host->host_lock, flags);
3171 		set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3172 		qla2xxx_wake_dpc(base_vha);
3173 	} else {
3174 		fc_remote_port_delete(rport);
3175 		qlt_fc_port_deleted(vha, fcport);
3176 	}
3177 }
3178 
3179 /*
3180  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
3181  *
3182  * Input: ha = adapter block pointer.  fcport = port structure pointer.
3183  *
3184  * Return: None.
3185  *
3186  * Context:
3187  */
3188 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
3189     int do_login, int defer)
3190 {
3191 	if (IS_QLAFX00(vha->hw)) {
3192 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3193 		qla2x00_schedule_rport_del(vha, fcport, defer);
3194 		return;
3195 	}
3196 
3197 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
3198 	    vha->vp_idx == fcport->vha->vp_idx) {
3199 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3200 		qla2x00_schedule_rport_del(vha, fcport, defer);
3201 	}
3202 	/*
3203 	 * We may need to retry the login, so don't change the state of the
3204 	 * port but do the retries.
3205 	 */
3206 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
3207 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3208 
3209 	if (!do_login)
3210 		return;
3211 
3212 	if (fcport->login_retry == 0) {
3213 		fcport->login_retry = vha->hw->login_retry_count;
3214 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3215 
3216 		ql_dbg(ql_dbg_disc, vha, 0x2067,
3217 		    "Port login retry "
3218 		    "%02x%02x%02x%02x%02x%02x%02x%02x, "
3219 		    "id = 0x%04x retry cnt=%d.\n",
3220 		    fcport->port_name[0], fcport->port_name[1],
3221 		    fcport->port_name[2], fcport->port_name[3],
3222 		    fcport->port_name[4], fcport->port_name[5],
3223 		    fcport->port_name[6], fcport->port_name[7],
3224 		    fcport->loop_id, fcport->login_retry);
3225 	}
3226 }
3227 
3228 /*
3229  * qla2x00_mark_all_devices_lost
3230  *	Updates fcport state when device goes offline.
3231  *
3232  * Input:
3233  *	ha = adapter block pointer.
3234  *	fcport = port structure pointer.
3235  *
3236  * Return:
3237  *	None.
3238  *
3239  * Context:
3240  */
3241 void
3242 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
3243 {
3244 	fc_port_t *fcport;
3245 
3246 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
3247 		if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
3248 			continue;
3249 
3250 		/*
3251 		 * No point in marking the device as lost, if the device is
3252 		 * already DEAD.
3253 		 */
3254 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
3255 			continue;
3256 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
3257 			qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3258 			if (defer)
3259 				qla2x00_schedule_rport_del(vha, fcport, defer);
3260 			else if (vha->vp_idx == fcport->vha->vp_idx)
3261 				qla2x00_schedule_rport_del(vha, fcport, defer);
3262 		}
3263 	}
3264 }
3265 
3266 /*
3267 * qla2x00_mem_alloc
3268 *      Allocates adapter memory.
3269 *
3270 * Returns:
3271 *      0  = success.
3272 *      !0  = failure.
3273 */
3274 static int
3275 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
3276 	struct req_que **req, struct rsp_que **rsp)
3277 {
3278 	char	name[16];
3279 
3280 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
3281 		&ha->init_cb_dma, GFP_KERNEL);
3282 	if (!ha->init_cb)
3283 		goto fail;
3284 
3285 	if (qlt_mem_alloc(ha) < 0)
3286 		goto fail_free_init_cb;
3287 
3288 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
3289 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
3290 	if (!ha->gid_list)
3291 		goto fail_free_tgt_mem;
3292 
3293 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
3294 	if (!ha->srb_mempool)
3295 		goto fail_free_gid_list;
3296 
3297 	if (IS_QLA82XX(ha)) {
3298 		/* Allocate cache for CT6 Ctx. */
3299 		if (!ctx_cachep) {
3300 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
3301 				sizeof(struct ct6_dsd), 0,
3302 				SLAB_HWCACHE_ALIGN, NULL);
3303 			if (!ctx_cachep)
3304 				goto fail_free_gid_list;
3305 		}
3306 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
3307 			ctx_cachep);
3308 		if (!ha->ctx_mempool)
3309 			goto fail_free_srb_mempool;
3310 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
3311 		    "ctx_cachep=%p ctx_mempool=%p.\n",
3312 		    ctx_cachep, ha->ctx_mempool);
3313 	}
3314 
3315 	/* Get memory for cached NVRAM */
3316 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
3317 	if (!ha->nvram)
3318 		goto fail_free_ctx_mempool;
3319 
3320 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
3321 		ha->pdev->device);
3322 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3323 		DMA_POOL_SIZE, 8, 0);
3324 	if (!ha->s_dma_pool)
3325 		goto fail_free_nvram;
3326 
3327 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
3328 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
3329 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
3330 
3331 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3332 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3333 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
3334 		if (!ha->dl_dma_pool) {
3335 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
3336 			    "Failed to allocate memory for dl_dma_pool.\n");
3337 			goto fail_s_dma_pool;
3338 		}
3339 
3340 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3341 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
3342 		if (!ha->fcp_cmnd_dma_pool) {
3343 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
3344 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
3345 			goto fail_dl_dma_pool;
3346 		}
3347 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
3348 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
3349 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
3350 	}
3351 
3352 	/* Allocate memory for SNS commands */
3353 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3354 	/* Get consistent memory allocated for SNS commands */
3355 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
3356 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
3357 		if (!ha->sns_cmd)
3358 			goto fail_dma_pool;
3359 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
3360 		    "sns_cmd: %p.\n", ha->sns_cmd);
3361 	} else {
3362 	/* Get consistent memory allocated for MS IOCB */
3363 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3364 			&ha->ms_iocb_dma);
3365 		if (!ha->ms_iocb)
3366 			goto fail_dma_pool;
3367 	/* Get consistent memory allocated for CT SNS commands */
3368 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
3369 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
3370 		if (!ha->ct_sns)
3371 			goto fail_free_ms_iocb;
3372 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
3373 		    "ms_iocb=%p ct_sns=%p.\n",
3374 		    ha->ms_iocb, ha->ct_sns);
3375 	}
3376 
3377 	/* Allocate memory for request ring */
3378 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
3379 	if (!*req) {
3380 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
3381 		    "Failed to allocate memory for req.\n");
3382 		goto fail_req;
3383 	}
3384 	(*req)->length = req_len;
3385 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
3386 		((*req)->length + 1) * sizeof(request_t),
3387 		&(*req)->dma, GFP_KERNEL);
3388 	if (!(*req)->ring) {
3389 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
3390 		    "Failed to allocate memory for req_ring.\n");
3391 		goto fail_req_ring;
3392 	}
3393 	/* Allocate memory for response ring */
3394 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
3395 	if (!*rsp) {
3396 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
3397 		    "Failed to allocate memory for rsp.\n");
3398 		goto fail_rsp;
3399 	}
3400 	(*rsp)->hw = ha;
3401 	(*rsp)->length = rsp_len;
3402 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
3403 		((*rsp)->length + 1) * sizeof(response_t),
3404 		&(*rsp)->dma, GFP_KERNEL);
3405 	if (!(*rsp)->ring) {
3406 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
3407 		    "Failed to allocate memory for rsp_ring.\n");
3408 		goto fail_rsp_ring;
3409 	}
3410 	(*req)->rsp = *rsp;
3411 	(*rsp)->req = *req;
3412 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
3413 	    "req=%p req->length=%d req->ring=%p rsp=%p "
3414 	    "rsp->length=%d rsp->ring=%p.\n",
3415 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
3416 	    (*rsp)->ring);
3417 	/* Allocate memory for NVRAM data for vports */
3418 	if (ha->nvram_npiv_size) {
3419 		ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
3420 		    ha->nvram_npiv_size, GFP_KERNEL);
3421 		if (!ha->npiv_info) {
3422 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
3423 			    "Failed to allocate memory for npiv_info.\n");
3424 			goto fail_npiv_info;
3425 		}
3426 	} else
3427 		ha->npiv_info = NULL;
3428 
3429 	/* Get consistent memory allocated for EX-INIT-CB. */
3430 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha)) {
3431 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3432 		    &ha->ex_init_cb_dma);
3433 		if (!ha->ex_init_cb)
3434 			goto fail_ex_init_cb;
3435 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
3436 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
3437 	}
3438 
3439 	INIT_LIST_HEAD(&ha->gbl_dsd_list);
3440 
3441 	/* Get consistent memory allocated for Async Port-Database. */
3442 	if (!IS_FWI2_CAPABLE(ha)) {
3443 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3444 			&ha->async_pd_dma);
3445 		if (!ha->async_pd)
3446 			goto fail_async_pd;
3447 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
3448 		    "async_pd=%p.\n", ha->async_pd);
3449 	}
3450 
3451 	INIT_LIST_HEAD(&ha->vp_list);
3452 
3453 	/* Allocate memory for our loop_id bitmap */
3454 	ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
3455 	    GFP_KERNEL);
3456 	if (!ha->loop_id_map)
3457 		goto fail_async_pd;
3458 	else {
3459 		qla2x00_set_reserved_loop_ids(ha);
3460 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
3461 		    "loop_id_map=%p. \n", ha->loop_id_map);
3462 	}
3463 
3464 	return 1;
3465 
3466 fail_async_pd:
3467 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
3468 fail_ex_init_cb:
3469 	kfree(ha->npiv_info);
3470 fail_npiv_info:
3471 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
3472 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
3473 	(*rsp)->ring = NULL;
3474 	(*rsp)->dma = 0;
3475 fail_rsp_ring:
3476 	kfree(*rsp);
3477 fail_rsp:
3478 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
3479 		sizeof(request_t), (*req)->ring, (*req)->dma);
3480 	(*req)->ring = NULL;
3481 	(*req)->dma = 0;
3482 fail_req_ring:
3483 	kfree(*req);
3484 fail_req:
3485 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3486 		ha->ct_sns, ha->ct_sns_dma);
3487 	ha->ct_sns = NULL;
3488 	ha->ct_sns_dma = 0;
3489 fail_free_ms_iocb:
3490 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3491 	ha->ms_iocb = NULL;
3492 	ha->ms_iocb_dma = 0;
3493 fail_dma_pool:
3494 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3495 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3496 		ha->fcp_cmnd_dma_pool = NULL;
3497 	}
3498 fail_dl_dma_pool:
3499 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3500 		dma_pool_destroy(ha->dl_dma_pool);
3501 		ha->dl_dma_pool = NULL;
3502 	}
3503 fail_s_dma_pool:
3504 	dma_pool_destroy(ha->s_dma_pool);
3505 	ha->s_dma_pool = NULL;
3506 fail_free_nvram:
3507 	kfree(ha->nvram);
3508 	ha->nvram = NULL;
3509 fail_free_ctx_mempool:
3510 	mempool_destroy(ha->ctx_mempool);
3511 	ha->ctx_mempool = NULL;
3512 fail_free_srb_mempool:
3513 	mempool_destroy(ha->srb_mempool);
3514 	ha->srb_mempool = NULL;
3515 fail_free_gid_list:
3516 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3517 	ha->gid_list,
3518 	ha->gid_list_dma);
3519 	ha->gid_list = NULL;
3520 	ha->gid_list_dma = 0;
3521 fail_free_tgt_mem:
3522 	qlt_mem_free(ha);
3523 fail_free_init_cb:
3524 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
3525 	ha->init_cb_dma);
3526 	ha->init_cb = NULL;
3527 	ha->init_cb_dma = 0;
3528 fail:
3529 	ql_log(ql_log_fatal, NULL, 0x0030,
3530 	    "Memory allocation failure.\n");
3531 	return -ENOMEM;
3532 }
3533 
3534 /*
3535 * qla2x00_free_fw_dump
3536 *	Frees fw dump stuff.
3537 *
3538 * Input:
3539 *	ha = adapter block pointer.
3540 */
3541 static void
3542 qla2x00_free_fw_dump(struct qla_hw_data *ha)
3543 {
3544 	if (ha->fce)
3545 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
3546 		    ha->fce_dma);
3547 
3548 	if (ha->fw_dump) {
3549 		if (ha->eft)
3550 			dma_free_coherent(&ha->pdev->dev,
3551 			    ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
3552 		vfree(ha->fw_dump);
3553 	}
3554 	ha->fce = NULL;
3555 	ha->fce_dma = 0;
3556 	ha->eft = NULL;
3557 	ha->eft_dma = 0;
3558 	ha->fw_dump = NULL;
3559 	ha->fw_dumped = 0;
3560 	ha->fw_dump_reading = 0;
3561 }
3562 
3563 /*
3564 * qla2x00_mem_free
3565 *      Frees all adapter allocated memory.
3566 *
3567 * Input:
3568 *      ha = adapter block pointer.
3569 */
3570 static void
3571 qla2x00_mem_free(struct qla_hw_data *ha)
3572 {
3573 	qla2x00_free_fw_dump(ha);
3574 
3575 	if (ha->mctp_dump)
3576 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
3577 		    ha->mctp_dump_dma);
3578 
3579 	if (ha->srb_mempool)
3580 		mempool_destroy(ha->srb_mempool);
3581 
3582 	if (ha->dcbx_tlv)
3583 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3584 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
3585 
3586 	if (ha->xgmac_data)
3587 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3588 		    ha->xgmac_data, ha->xgmac_data_dma);
3589 
3590 	if (ha->sns_cmd)
3591 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3592 		ha->sns_cmd, ha->sns_cmd_dma);
3593 
3594 	if (ha->ct_sns)
3595 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3596 		ha->ct_sns, ha->ct_sns_dma);
3597 
3598 	if (ha->sfp_data)
3599 		dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3600 
3601 	if (ha->ms_iocb)
3602 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3603 
3604 	if (ha->ex_init_cb)
3605 		dma_pool_free(ha->s_dma_pool,
3606 			ha->ex_init_cb, ha->ex_init_cb_dma);
3607 
3608 	if (ha->async_pd)
3609 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3610 
3611 	if (ha->s_dma_pool)
3612 		dma_pool_destroy(ha->s_dma_pool);
3613 
3614 	if (ha->gid_list)
3615 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3616 		ha->gid_list, ha->gid_list_dma);
3617 
3618 	if (IS_QLA82XX(ha)) {
3619 		if (!list_empty(&ha->gbl_dsd_list)) {
3620 			struct dsd_dma *dsd_ptr, *tdsd_ptr;
3621 
3622 			/* clean up allocated prev pool */
3623 			list_for_each_entry_safe(dsd_ptr,
3624 				tdsd_ptr, &ha->gbl_dsd_list, list) {
3625 				dma_pool_free(ha->dl_dma_pool,
3626 				dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3627 				list_del(&dsd_ptr->list);
3628 				kfree(dsd_ptr);
3629 			}
3630 		}
3631 	}
3632 
3633 	if (ha->dl_dma_pool)
3634 		dma_pool_destroy(ha->dl_dma_pool);
3635 
3636 	if (ha->fcp_cmnd_dma_pool)
3637 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3638 
3639 	if (ha->ctx_mempool)
3640 		mempool_destroy(ha->ctx_mempool);
3641 
3642 	qlt_mem_free(ha);
3643 
3644 	if (ha->init_cb)
3645 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3646 			ha->init_cb, ha->init_cb_dma);
3647 	vfree(ha->optrom_buffer);
3648 	kfree(ha->nvram);
3649 	kfree(ha->npiv_info);
3650 	kfree(ha->swl);
3651 	kfree(ha->loop_id_map);
3652 
3653 	ha->srb_mempool = NULL;
3654 	ha->ctx_mempool = NULL;
3655 	ha->sns_cmd = NULL;
3656 	ha->sns_cmd_dma = 0;
3657 	ha->ct_sns = NULL;
3658 	ha->ct_sns_dma = 0;
3659 	ha->ms_iocb = NULL;
3660 	ha->ms_iocb_dma = 0;
3661 	ha->init_cb = NULL;
3662 	ha->init_cb_dma = 0;
3663 	ha->ex_init_cb = NULL;
3664 	ha->ex_init_cb_dma = 0;
3665 	ha->async_pd = NULL;
3666 	ha->async_pd_dma = 0;
3667 
3668 	ha->s_dma_pool = NULL;
3669 	ha->dl_dma_pool = NULL;
3670 	ha->fcp_cmnd_dma_pool = NULL;
3671 
3672 	ha->gid_list = NULL;
3673 	ha->gid_list_dma = 0;
3674 
3675 	ha->tgt.atio_ring = NULL;
3676 	ha->tgt.atio_dma = 0;
3677 	ha->tgt.tgt_vp_map = NULL;
3678 }
3679 
3680 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3681 						struct qla_hw_data *ha)
3682 {
3683 	struct Scsi_Host *host;
3684 	struct scsi_qla_host *vha = NULL;
3685 
3686 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3687 	if (host == NULL) {
3688 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3689 		    "Failed to allocate host from the scsi layer, aborting.\n");
3690 		goto fail;
3691 	}
3692 
3693 	/* Clear our data area */
3694 	vha = shost_priv(host);
3695 	memset(vha, 0, sizeof(scsi_qla_host_t));
3696 
3697 	vha->host = host;
3698 	vha->host_no = host->host_no;
3699 	vha->hw = ha;
3700 
3701 	INIT_LIST_HEAD(&vha->vp_fcports);
3702 	INIT_LIST_HEAD(&vha->work_list);
3703 	INIT_LIST_HEAD(&vha->list);
3704 
3705 	spin_lock_init(&vha->work_lock);
3706 
3707 	sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3708 	ql_dbg(ql_dbg_init, vha, 0x0041,
3709 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3710 	    vha->host, vha->hw, vha,
3711 	    dev_name(&(ha->pdev->dev)));
3712 
3713 	return vha;
3714 
3715 fail:
3716 	return vha;
3717 }
3718 
3719 static struct qla_work_evt *
3720 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3721 {
3722 	struct qla_work_evt *e;
3723 	uint8_t bail;
3724 
3725 	QLA_VHA_MARK_BUSY(vha, bail);
3726 	if (bail)
3727 		return NULL;
3728 
3729 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3730 	if (!e) {
3731 		QLA_VHA_MARK_NOT_BUSY(vha);
3732 		return NULL;
3733 	}
3734 
3735 	INIT_LIST_HEAD(&e->list);
3736 	e->type = type;
3737 	e->flags = QLA_EVT_FLAG_FREE;
3738 	return e;
3739 }
3740 
3741 static int
3742 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3743 {
3744 	unsigned long flags;
3745 
3746 	spin_lock_irqsave(&vha->work_lock, flags);
3747 	list_add_tail(&e->list, &vha->work_list);
3748 	spin_unlock_irqrestore(&vha->work_lock, flags);
3749 	qla2xxx_wake_dpc(vha);
3750 
3751 	return QLA_SUCCESS;
3752 }
3753 
3754 int
3755 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3756     u32 data)
3757 {
3758 	struct qla_work_evt *e;
3759 
3760 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3761 	if (!e)
3762 		return QLA_FUNCTION_FAILED;
3763 
3764 	e->u.aen.code = code;
3765 	e->u.aen.data = data;
3766 	return qla2x00_post_work(vha, e);
3767 }
3768 
3769 int
3770 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3771 {
3772 	struct qla_work_evt *e;
3773 
3774 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3775 	if (!e)
3776 		return QLA_FUNCTION_FAILED;
3777 
3778 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3779 	return qla2x00_post_work(vha, e);
3780 }
3781 
3782 #define qla2x00_post_async_work(name, type)	\
3783 int qla2x00_post_async_##name##_work(		\
3784     struct scsi_qla_host *vha,			\
3785     fc_port_t *fcport, uint16_t *data)		\
3786 {						\
3787 	struct qla_work_evt *e;			\
3788 						\
3789 	e = qla2x00_alloc_work(vha, type);	\
3790 	if (!e)					\
3791 		return QLA_FUNCTION_FAILED;	\
3792 						\
3793 	e->u.logio.fcport = fcport;		\
3794 	if (data) {				\
3795 		e->u.logio.data[0] = data[0];	\
3796 		e->u.logio.data[1] = data[1];	\
3797 	}					\
3798 	return qla2x00_post_work(vha, e);	\
3799 }
3800 
3801 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3802 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3803 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3804 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3805 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3806 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3807 
3808 int
3809 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3810 {
3811 	struct qla_work_evt *e;
3812 
3813 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3814 	if (!e)
3815 		return QLA_FUNCTION_FAILED;
3816 
3817 	e->u.uevent.code = code;
3818 	return qla2x00_post_work(vha, e);
3819 }
3820 
3821 static void
3822 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3823 {
3824 	char event_string[40];
3825 	char *envp[] = { event_string, NULL };
3826 
3827 	switch (code) {
3828 	case QLA_UEVENT_CODE_FW_DUMP:
3829 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3830 		    vha->host_no);
3831 		break;
3832 	default:
3833 		/* do nothing */
3834 		break;
3835 	}
3836 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3837 }
3838 
3839 int
3840 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
3841 			uint32_t *data, int cnt)
3842 {
3843 	struct qla_work_evt *e;
3844 
3845 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
3846 	if (!e)
3847 		return QLA_FUNCTION_FAILED;
3848 
3849 	e->u.aenfx.evtcode = evtcode;
3850 	e->u.aenfx.count = cnt;
3851 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
3852 	return qla2x00_post_work(vha, e);
3853 }
3854 
3855 void
3856 qla2x00_do_work(struct scsi_qla_host *vha)
3857 {
3858 	struct qla_work_evt *e, *tmp;
3859 	unsigned long flags;
3860 	LIST_HEAD(work);
3861 
3862 	spin_lock_irqsave(&vha->work_lock, flags);
3863 	list_splice_init(&vha->work_list, &work);
3864 	spin_unlock_irqrestore(&vha->work_lock, flags);
3865 
3866 	list_for_each_entry_safe(e, tmp, &work, list) {
3867 		list_del_init(&e->list);
3868 
3869 		switch (e->type) {
3870 		case QLA_EVT_AEN:
3871 			fc_host_post_event(vha->host, fc_get_event_number(),
3872 			    e->u.aen.code, e->u.aen.data);
3873 			break;
3874 		case QLA_EVT_IDC_ACK:
3875 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3876 			break;
3877 		case QLA_EVT_ASYNC_LOGIN:
3878 			qla2x00_async_login(vha, e->u.logio.fcport,
3879 			    e->u.logio.data);
3880 			break;
3881 		case QLA_EVT_ASYNC_LOGIN_DONE:
3882 			qla2x00_async_login_done(vha, e->u.logio.fcport,
3883 			    e->u.logio.data);
3884 			break;
3885 		case QLA_EVT_ASYNC_LOGOUT:
3886 			qla2x00_async_logout(vha, e->u.logio.fcport);
3887 			break;
3888 		case QLA_EVT_ASYNC_LOGOUT_DONE:
3889 			qla2x00_async_logout_done(vha, e->u.logio.fcport,
3890 			    e->u.logio.data);
3891 			break;
3892 		case QLA_EVT_ASYNC_ADISC:
3893 			qla2x00_async_adisc(vha, e->u.logio.fcport,
3894 			    e->u.logio.data);
3895 			break;
3896 		case QLA_EVT_ASYNC_ADISC_DONE:
3897 			qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3898 			    e->u.logio.data);
3899 			break;
3900 		case QLA_EVT_UEVENT:
3901 			qla2x00_uevent_emit(vha, e->u.uevent.code);
3902 			break;
3903 		case QLA_EVT_AENFX:
3904 			qlafx00_process_aen(vha, e);
3905 			break;
3906 		}
3907 		if (e->flags & QLA_EVT_FLAG_FREE)
3908 			kfree(e);
3909 
3910 		/* For each work completed decrement vha ref count */
3911 		QLA_VHA_MARK_NOT_BUSY(vha);
3912 	}
3913 }
3914 
3915 /* Relogins all the fcports of a vport
3916  * Context: dpc thread
3917  */
3918 void qla2x00_relogin(struct scsi_qla_host *vha)
3919 {
3920 	fc_port_t       *fcport;
3921 	int status;
3922 	uint16_t        next_loopid = 0;
3923 	struct qla_hw_data *ha = vha->hw;
3924 	uint16_t data[2];
3925 
3926 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
3927 	/*
3928 	 * If the port is not ONLINE then try to login
3929 	 * to it if we haven't run out of retries.
3930 	 */
3931 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
3932 		    fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
3933 			fcport->login_retry--;
3934 			if (fcport->flags & FCF_FABRIC_DEVICE) {
3935 				if (fcport->flags & FCF_FCP2_DEVICE)
3936 					ha->isp_ops->fabric_logout(vha,
3937 							fcport->loop_id,
3938 							fcport->d_id.b.domain,
3939 							fcport->d_id.b.area,
3940 							fcport->d_id.b.al_pa);
3941 
3942 				if (fcport->loop_id == FC_NO_LOOP_ID) {
3943 					fcport->loop_id = next_loopid =
3944 					    ha->min_external_loopid;
3945 					status = qla2x00_find_new_loop_id(
3946 					    vha, fcport);
3947 					if (status != QLA_SUCCESS) {
3948 						/* Ran out of IDs to use */
3949 						break;
3950 					}
3951 				}
3952 
3953 				if (IS_ALOGIO_CAPABLE(ha)) {
3954 					fcport->flags |= FCF_ASYNC_SENT;
3955 					data[0] = 0;
3956 					data[1] = QLA_LOGIO_LOGIN_RETRIED;
3957 					status = qla2x00_post_async_login_work(
3958 					    vha, fcport, data);
3959 					if (status == QLA_SUCCESS)
3960 						continue;
3961 					/* Attempt a retry. */
3962 					status = 1;
3963 				} else {
3964 					status = qla2x00_fabric_login(vha,
3965 					    fcport, &next_loopid);
3966 					if (status ==  QLA_SUCCESS) {
3967 						int status2;
3968 						uint8_t opts;
3969 
3970 						opts = 0;
3971 						if (fcport->flags &
3972 						    FCF_FCP2_DEVICE)
3973 							opts |= BIT_1;
3974 						status2 =
3975 						    qla2x00_get_port_database(
3976 							vha, fcport, opts);
3977 						if (status2 != QLA_SUCCESS)
3978 							status = 1;
3979 					}
3980 				}
3981 			} else
3982 				status = qla2x00_local_device_login(vha,
3983 								fcport);
3984 
3985 			if (status == QLA_SUCCESS) {
3986 				fcport->old_loop_id = fcport->loop_id;
3987 
3988 				ql_dbg(ql_dbg_disc, vha, 0x2003,
3989 				    "Port login OK: logged in ID 0x%x.\n",
3990 				    fcport->loop_id);
3991 
3992 				qla2x00_update_fcport(vha, fcport);
3993 
3994 			} else if (status == 1) {
3995 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3996 				/* retry the login again */
3997 				ql_dbg(ql_dbg_disc, vha, 0x2007,
3998 				    "Retrying %d login again loop_id 0x%x.\n",
3999 				    fcport->login_retry, fcport->loop_id);
4000 			} else {
4001 				fcport->login_retry = 0;
4002 			}
4003 
4004 			if (fcport->login_retry == 0 && status != QLA_SUCCESS)
4005 				qla2x00_clear_loop_id(fcport);
4006 		}
4007 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
4008 			break;
4009 	}
4010 }
4011 
4012 /* Schedule work on any of the dpc-workqueues */
4013 void
4014 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
4015 {
4016 	struct qla_hw_data *ha = base_vha->hw;
4017 
4018 	switch (work_code) {
4019 	case MBA_IDC_AEN: /* 0x8200 */
4020 		if (ha->dpc_lp_wq)
4021 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
4022 		break;
4023 
4024 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
4025 		if (!ha->flags.nic_core_reset_hdlr_active) {
4026 			if (ha->dpc_hp_wq)
4027 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
4028 		} else
4029 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
4030 			    "NIC Core reset is already active. Skip "
4031 			    "scheduling it again.\n");
4032 		break;
4033 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
4034 		if (ha->dpc_hp_wq)
4035 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
4036 		break;
4037 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
4038 		if (ha->dpc_hp_wq)
4039 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
4040 		break;
4041 	default:
4042 		ql_log(ql_log_warn, base_vha, 0xb05f,
4043 		    "Unknow work-code=0x%x.\n", work_code);
4044 	}
4045 
4046 	return;
4047 }
4048 
4049 /* Work: Perform NIC Core Unrecoverable state handling */
4050 void
4051 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
4052 {
4053 	struct qla_hw_data *ha =
4054 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
4055 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4056 	uint32_t dev_state = 0;
4057 
4058 	qla83xx_idc_lock(base_vha, 0);
4059 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4060 	qla83xx_reset_ownership(base_vha);
4061 	if (ha->flags.nic_core_reset_owner) {
4062 		ha->flags.nic_core_reset_owner = 0;
4063 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4064 		    QLA8XXX_DEV_FAILED);
4065 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
4066 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4067 	}
4068 	qla83xx_idc_unlock(base_vha, 0);
4069 }
4070 
4071 /* Work: Execute IDC state handler */
4072 void
4073 qla83xx_idc_state_handler_work(struct work_struct *work)
4074 {
4075 	struct qla_hw_data *ha =
4076 		container_of(work, struct qla_hw_data, idc_state_handler);
4077 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4078 	uint32_t dev_state = 0;
4079 
4080 	qla83xx_idc_lock(base_vha, 0);
4081 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4082 	if (dev_state == QLA8XXX_DEV_FAILED ||
4083 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
4084 		qla83xx_idc_state_handler(base_vha);
4085 	qla83xx_idc_unlock(base_vha, 0);
4086 }
4087 
4088 static int
4089 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
4090 {
4091 	int rval = QLA_SUCCESS;
4092 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
4093 	uint32_t heart_beat_counter1, heart_beat_counter2;
4094 
4095 	do {
4096 		if (time_after(jiffies, heart_beat_wait)) {
4097 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
4098 			    "Nic Core f/w is not alive.\n");
4099 			rval = QLA_FUNCTION_FAILED;
4100 			break;
4101 		}
4102 
4103 		qla83xx_idc_lock(base_vha, 0);
4104 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4105 		    &heart_beat_counter1);
4106 		qla83xx_idc_unlock(base_vha, 0);
4107 		msleep(100);
4108 		qla83xx_idc_lock(base_vha, 0);
4109 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4110 		    &heart_beat_counter2);
4111 		qla83xx_idc_unlock(base_vha, 0);
4112 	} while (heart_beat_counter1 == heart_beat_counter2);
4113 
4114 	return rval;
4115 }
4116 
4117 /* Work: Perform NIC Core Reset handling */
4118 void
4119 qla83xx_nic_core_reset_work(struct work_struct *work)
4120 {
4121 	struct qla_hw_data *ha =
4122 		container_of(work, struct qla_hw_data, nic_core_reset);
4123 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4124 	uint32_t dev_state = 0;
4125 
4126 	if (IS_QLA2031(ha)) {
4127 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
4128 			ql_log(ql_log_warn, base_vha, 0xb081,
4129 			    "Failed to dump mctp\n");
4130 		return;
4131 	}
4132 
4133 	if (!ha->flags.nic_core_reset_hdlr_active) {
4134 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
4135 			qla83xx_idc_lock(base_vha, 0);
4136 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4137 			    &dev_state);
4138 			qla83xx_idc_unlock(base_vha, 0);
4139 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
4140 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
4141 				    "Nic Core f/w is alive.\n");
4142 				return;
4143 			}
4144 		}
4145 
4146 		ha->flags.nic_core_reset_hdlr_active = 1;
4147 		if (qla83xx_nic_core_reset(base_vha)) {
4148 			/* NIC Core reset failed. */
4149 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
4150 			    "NIC Core reset failed.\n");
4151 		}
4152 		ha->flags.nic_core_reset_hdlr_active = 0;
4153 	}
4154 }
4155 
4156 /* Work: Handle 8200 IDC aens */
4157 void
4158 qla83xx_service_idc_aen(struct work_struct *work)
4159 {
4160 	struct qla_hw_data *ha =
4161 		container_of(work, struct qla_hw_data, idc_aen);
4162 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4163 	uint32_t dev_state, idc_control;
4164 
4165 	qla83xx_idc_lock(base_vha, 0);
4166 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4167 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
4168 	qla83xx_idc_unlock(base_vha, 0);
4169 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
4170 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
4171 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
4172 			    "Application requested NIC Core Reset.\n");
4173 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4174 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
4175 		    QLA_SUCCESS) {
4176 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
4177 			    "Other protocol driver requested NIC Core Reset.\n");
4178 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4179 		}
4180 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
4181 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
4182 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4183 	}
4184 }
4185 
4186 static void
4187 qla83xx_wait_logic(void)
4188 {
4189 	int i;
4190 
4191 	/* Yield CPU */
4192 	if (!in_interrupt()) {
4193 		/*
4194 		 * Wait about 200ms before retrying again.
4195 		 * This controls the number of retries for single
4196 		 * lock operation.
4197 		 */
4198 		msleep(100);
4199 		schedule();
4200 	} else {
4201 		for (i = 0; i < 20; i++)
4202 			cpu_relax(); /* This a nop instr on i386 */
4203 	}
4204 }
4205 
4206 static int
4207 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
4208 {
4209 	int rval;
4210 	uint32_t data;
4211 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
4212 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
4213 	struct qla_hw_data *ha = base_vha->hw;
4214 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
4215 	    "Trying force recovery of the IDC lock.\n");
4216 
4217 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
4218 	if (rval)
4219 		return rval;
4220 
4221 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
4222 		return QLA_SUCCESS;
4223 	} else {
4224 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
4225 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4226 		    data);
4227 		if (rval)
4228 			return rval;
4229 
4230 		msleep(200);
4231 
4232 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4233 		    &data);
4234 		if (rval)
4235 			return rval;
4236 
4237 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
4238 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
4239 					~(idc_lck_rcvry_stage_mask));
4240 			rval = qla83xx_wr_reg(base_vha,
4241 			    QLA83XX_IDC_LOCK_RECOVERY, data);
4242 			if (rval)
4243 				return rval;
4244 
4245 			/* Forcefully perform IDC UnLock */
4246 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
4247 			    &data);
4248 			if (rval)
4249 				return rval;
4250 			/* Clear lock-id by setting 0xff */
4251 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4252 			    0xff);
4253 			if (rval)
4254 				return rval;
4255 			/* Clear lock-recovery by setting 0x0 */
4256 			rval = qla83xx_wr_reg(base_vha,
4257 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
4258 			if (rval)
4259 				return rval;
4260 		} else
4261 			return QLA_SUCCESS;
4262 	}
4263 
4264 	return rval;
4265 }
4266 
4267 static int
4268 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
4269 {
4270 	int rval = QLA_SUCCESS;
4271 	uint32_t o_drv_lockid, n_drv_lockid;
4272 	unsigned long lock_recovery_timeout;
4273 
4274 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
4275 retry_lockid:
4276 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
4277 	if (rval)
4278 		goto exit;
4279 
4280 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
4281 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
4282 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
4283 			return QLA_SUCCESS;
4284 		else
4285 			return QLA_FUNCTION_FAILED;
4286 	}
4287 
4288 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
4289 	if (rval)
4290 		goto exit;
4291 
4292 	if (o_drv_lockid == n_drv_lockid) {
4293 		qla83xx_wait_logic();
4294 		goto retry_lockid;
4295 	} else
4296 		return QLA_SUCCESS;
4297 
4298 exit:
4299 	return rval;
4300 }
4301 
4302 void
4303 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4304 {
4305 	uint16_t options = (requester_id << 15) | BIT_6;
4306 	uint32_t data;
4307 	uint32_t lock_owner;
4308 	struct qla_hw_data *ha = base_vha->hw;
4309 
4310 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
4311 retry_lock:
4312 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
4313 	    == QLA_SUCCESS) {
4314 		if (data) {
4315 			/* Setting lock-id to our function-number */
4316 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4317 			    ha->portnum);
4318 		} else {
4319 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4320 			    &lock_owner);
4321 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
4322 			    "Failed to acquire IDC lock, acquired by %d, "
4323 			    "retrying...\n", lock_owner);
4324 
4325 			/* Retry/Perform IDC-Lock recovery */
4326 			if (qla83xx_idc_lock_recovery(base_vha)
4327 			    == QLA_SUCCESS) {
4328 				qla83xx_wait_logic();
4329 				goto retry_lock;
4330 			} else
4331 				ql_log(ql_log_warn, base_vha, 0xb075,
4332 				    "IDC Lock recovery FAILED.\n");
4333 		}
4334 
4335 	}
4336 
4337 	return;
4338 
4339 	/* XXX: IDC-lock implementation using access-control mbx */
4340 retry_lock2:
4341 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4342 		ql_dbg(ql_dbg_p3p, base_vha, 0xb072,
4343 		    "Failed to acquire IDC lock. retrying...\n");
4344 		/* Retry/Perform IDC-Lock recovery */
4345 		if (qla83xx_idc_lock_recovery(base_vha) == QLA_SUCCESS) {
4346 			qla83xx_wait_logic();
4347 			goto retry_lock2;
4348 		} else
4349 			ql_log(ql_log_warn, base_vha, 0xb076,
4350 			    "IDC Lock recovery FAILED.\n");
4351 	}
4352 
4353 	return;
4354 }
4355 
4356 void
4357 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4358 {
4359 	uint16_t options = (requester_id << 15) | BIT_7, retry;
4360 	uint32_t data;
4361 	struct qla_hw_data *ha = base_vha->hw;
4362 
4363 	/* IDC-unlock implementation using driver-unlock/lock-id
4364 	 * remote registers
4365 	 */
4366 	retry = 0;
4367 retry_unlock:
4368 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
4369 	    == QLA_SUCCESS) {
4370 		if (data == ha->portnum) {
4371 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
4372 			/* Clearing lock-id by setting 0xff */
4373 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
4374 		} else if (retry < 10) {
4375 			/* SV: XXX: IDC unlock retrying needed here? */
4376 
4377 			/* Retry for IDC-unlock */
4378 			qla83xx_wait_logic();
4379 			retry++;
4380 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
4381 			    "Failed to release IDC lock, retyring=%d\n", retry);
4382 			goto retry_unlock;
4383 		}
4384 	} else if (retry < 10) {
4385 		/* Retry for IDC-unlock */
4386 		qla83xx_wait_logic();
4387 		retry++;
4388 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
4389 		    "Failed to read drv-lockid, retyring=%d\n", retry);
4390 		goto retry_unlock;
4391 	}
4392 
4393 	return;
4394 
4395 	/* XXX: IDC-unlock implementation using access-control mbx */
4396 	retry = 0;
4397 retry_unlock2:
4398 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4399 		if (retry < 10) {
4400 			/* Retry for IDC-unlock */
4401 			qla83xx_wait_logic();
4402 			retry++;
4403 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
4404 			    "Failed to release IDC lock, retyring=%d\n", retry);
4405 			goto retry_unlock2;
4406 		}
4407 	}
4408 
4409 	return;
4410 }
4411 
4412 int
4413 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
4414 {
4415 	int rval = QLA_SUCCESS;
4416 	struct qla_hw_data *ha = vha->hw;
4417 	uint32_t drv_presence;
4418 
4419 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4420 	if (rval == QLA_SUCCESS) {
4421 		drv_presence |= (1 << ha->portnum);
4422 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4423 		    drv_presence);
4424 	}
4425 
4426 	return rval;
4427 }
4428 
4429 int
4430 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
4431 {
4432 	int rval = QLA_SUCCESS;
4433 
4434 	qla83xx_idc_lock(vha, 0);
4435 	rval = __qla83xx_set_drv_presence(vha);
4436 	qla83xx_idc_unlock(vha, 0);
4437 
4438 	return rval;
4439 }
4440 
4441 int
4442 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
4443 {
4444 	int rval = QLA_SUCCESS;
4445 	struct qla_hw_data *ha = vha->hw;
4446 	uint32_t drv_presence;
4447 
4448 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4449 	if (rval == QLA_SUCCESS) {
4450 		drv_presence &= ~(1 << ha->portnum);
4451 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4452 		    drv_presence);
4453 	}
4454 
4455 	return rval;
4456 }
4457 
4458 int
4459 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
4460 {
4461 	int rval = QLA_SUCCESS;
4462 
4463 	qla83xx_idc_lock(vha, 0);
4464 	rval = __qla83xx_clear_drv_presence(vha);
4465 	qla83xx_idc_unlock(vha, 0);
4466 
4467 	return rval;
4468 }
4469 
4470 static void
4471 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
4472 {
4473 	struct qla_hw_data *ha = vha->hw;
4474 	uint32_t drv_ack, drv_presence;
4475 	unsigned long ack_timeout;
4476 
4477 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
4478 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
4479 	while (1) {
4480 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4481 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4482 		if ((drv_ack & drv_presence) == drv_presence)
4483 			break;
4484 
4485 		if (time_after_eq(jiffies, ack_timeout)) {
4486 			ql_log(ql_log_warn, vha, 0xb067,
4487 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
4488 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
4489 			/*
4490 			 * The function(s) which did not ack in time are forced
4491 			 * to withdraw any further participation in the IDC
4492 			 * reset.
4493 			 */
4494 			if (drv_ack != drv_presence)
4495 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4496 				    drv_ack);
4497 			break;
4498 		}
4499 
4500 		qla83xx_idc_unlock(vha, 0);
4501 		msleep(1000);
4502 		qla83xx_idc_lock(vha, 0);
4503 	}
4504 
4505 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
4506 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
4507 }
4508 
4509 static int
4510 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
4511 {
4512 	int rval = QLA_SUCCESS;
4513 	uint32_t idc_control;
4514 
4515 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
4516 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
4517 
4518 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
4519 	__qla83xx_get_idc_control(vha, &idc_control);
4520 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
4521 	__qla83xx_set_idc_control(vha, 0);
4522 
4523 	qla83xx_idc_unlock(vha, 0);
4524 	rval = qla83xx_restart_nic_firmware(vha);
4525 	qla83xx_idc_lock(vha, 0);
4526 
4527 	if (rval != QLA_SUCCESS) {
4528 		ql_log(ql_log_fatal, vha, 0xb06a,
4529 		    "Failed to restart NIC f/w.\n");
4530 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
4531 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
4532 	} else {
4533 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
4534 		    "Success in restarting nic f/w.\n");
4535 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
4536 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
4537 	}
4538 
4539 	return rval;
4540 }
4541 
4542 /* Assumes idc_lock always held on entry */
4543 int
4544 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
4545 {
4546 	struct qla_hw_data *ha = base_vha->hw;
4547 	int rval = QLA_SUCCESS;
4548 	unsigned long dev_init_timeout;
4549 	uint32_t dev_state;
4550 
4551 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
4552 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
4553 
4554 	while (1) {
4555 
4556 		if (time_after_eq(jiffies, dev_init_timeout)) {
4557 			ql_log(ql_log_warn, base_vha, 0xb06e,
4558 			    "Initialization TIMEOUT!\n");
4559 			/* Init timeout. Disable further NIC Core
4560 			 * communication.
4561 			 */
4562 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4563 				QLA8XXX_DEV_FAILED);
4564 			ql_log(ql_log_info, base_vha, 0xb06f,
4565 			    "HW State: FAILED.\n");
4566 		}
4567 
4568 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4569 		switch (dev_state) {
4570 		case QLA8XXX_DEV_READY:
4571 			if (ha->flags.nic_core_reset_owner)
4572 				qla83xx_idc_audit(base_vha,
4573 				    IDC_AUDIT_COMPLETION);
4574 			ha->flags.nic_core_reset_owner = 0;
4575 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
4576 			    "Reset_owner reset by 0x%x.\n",
4577 			    ha->portnum);
4578 			goto exit;
4579 		case QLA8XXX_DEV_COLD:
4580 			if (ha->flags.nic_core_reset_owner)
4581 				rval = qla83xx_device_bootstrap(base_vha);
4582 			else {
4583 			/* Wait for AEN to change device-state */
4584 				qla83xx_idc_unlock(base_vha, 0);
4585 				msleep(1000);
4586 				qla83xx_idc_lock(base_vha, 0);
4587 			}
4588 			break;
4589 		case QLA8XXX_DEV_INITIALIZING:
4590 			/* Wait for AEN to change device-state */
4591 			qla83xx_idc_unlock(base_vha, 0);
4592 			msleep(1000);
4593 			qla83xx_idc_lock(base_vha, 0);
4594 			break;
4595 		case QLA8XXX_DEV_NEED_RESET:
4596 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
4597 				qla83xx_need_reset_handler(base_vha);
4598 			else {
4599 				/* Wait for AEN to change device-state */
4600 				qla83xx_idc_unlock(base_vha, 0);
4601 				msleep(1000);
4602 				qla83xx_idc_lock(base_vha, 0);
4603 			}
4604 			/* reset timeout value after need reset handler */
4605 			dev_init_timeout = jiffies +
4606 			    (ha->fcoe_dev_init_timeout * HZ);
4607 			break;
4608 		case QLA8XXX_DEV_NEED_QUIESCENT:
4609 			/* XXX: DEBUG for now */
4610 			qla83xx_idc_unlock(base_vha, 0);
4611 			msleep(1000);
4612 			qla83xx_idc_lock(base_vha, 0);
4613 			break;
4614 		case QLA8XXX_DEV_QUIESCENT:
4615 			/* XXX: DEBUG for now */
4616 			if (ha->flags.quiesce_owner)
4617 				goto exit;
4618 
4619 			qla83xx_idc_unlock(base_vha, 0);
4620 			msleep(1000);
4621 			qla83xx_idc_lock(base_vha, 0);
4622 			dev_init_timeout = jiffies +
4623 			    (ha->fcoe_dev_init_timeout * HZ);
4624 			break;
4625 		case QLA8XXX_DEV_FAILED:
4626 			if (ha->flags.nic_core_reset_owner)
4627 				qla83xx_idc_audit(base_vha,
4628 				    IDC_AUDIT_COMPLETION);
4629 			ha->flags.nic_core_reset_owner = 0;
4630 			__qla83xx_clear_drv_presence(base_vha);
4631 			qla83xx_idc_unlock(base_vha, 0);
4632 			qla8xxx_dev_failed_handler(base_vha);
4633 			rval = QLA_FUNCTION_FAILED;
4634 			qla83xx_idc_lock(base_vha, 0);
4635 			goto exit;
4636 		case QLA8XXX_BAD_VALUE:
4637 			qla83xx_idc_unlock(base_vha, 0);
4638 			msleep(1000);
4639 			qla83xx_idc_lock(base_vha, 0);
4640 			break;
4641 		default:
4642 			ql_log(ql_log_warn, base_vha, 0xb071,
4643 			    "Unknow Device State: %x.\n", dev_state);
4644 			qla83xx_idc_unlock(base_vha, 0);
4645 			qla8xxx_dev_failed_handler(base_vha);
4646 			rval = QLA_FUNCTION_FAILED;
4647 			qla83xx_idc_lock(base_vha, 0);
4648 			goto exit;
4649 		}
4650 	}
4651 
4652 exit:
4653 	return rval;
4654 }
4655 
4656 /**************************************************************************
4657 * qla2x00_do_dpc
4658 *   This kernel thread is a task that is schedule by the interrupt handler
4659 *   to perform the background processing for interrupts.
4660 *
4661 * Notes:
4662 * This task always run in the context of a kernel thread.  It
4663 * is kick-off by the driver's detect code and starts up
4664 * up one per adapter. It immediately goes to sleep and waits for
4665 * some fibre event.  When either the interrupt handler or
4666 * the timer routine detects a event it will one of the task
4667 * bits then wake us up.
4668 **************************************************************************/
4669 static int
4670 qla2x00_do_dpc(void *data)
4671 {
4672 	int		rval;
4673 	scsi_qla_host_t *base_vha;
4674 	struct qla_hw_data *ha;
4675 
4676 	ha = (struct qla_hw_data *)data;
4677 	base_vha = pci_get_drvdata(ha->pdev);
4678 
4679 	set_user_nice(current, -20);
4680 
4681 	set_current_state(TASK_INTERRUPTIBLE);
4682 	while (!kthread_should_stop()) {
4683 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
4684 		    "DPC handler sleeping.\n");
4685 
4686 		schedule();
4687 		__set_current_state(TASK_RUNNING);
4688 
4689 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
4690 			goto end_loop;
4691 
4692 		if (ha->flags.eeh_busy) {
4693 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
4694 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
4695 			goto end_loop;
4696 		}
4697 
4698 		ha->dpc_active = 1;
4699 
4700 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
4701 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
4702 		    base_vha->dpc_flags);
4703 
4704 		qla2x00_do_work(base_vha);
4705 
4706 		if (IS_QLA82XX(ha)) {
4707 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
4708 				&base_vha->dpc_flags)) {
4709 				qla82xx_idc_lock(ha);
4710 				qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4711 					QLA8XXX_DEV_FAILED);
4712 				qla82xx_idc_unlock(ha);
4713 				ql_log(ql_log_info, base_vha, 0x4004,
4714 				    "HW State: FAILED.\n");
4715 				qla82xx_device_state_handler(base_vha);
4716 				continue;
4717 			}
4718 
4719 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
4720 				&base_vha->dpc_flags)) {
4721 
4722 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
4723 				    "FCoE context reset scheduled.\n");
4724 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
4725 					&base_vha->dpc_flags))) {
4726 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
4727 						/* FCoE-ctx reset failed.
4728 						 * Escalate to chip-reset
4729 						 */
4730 						set_bit(ISP_ABORT_NEEDED,
4731 							&base_vha->dpc_flags);
4732 					}
4733 					clear_bit(ABORT_ISP_ACTIVE,
4734 						&base_vha->dpc_flags);
4735 				}
4736 
4737 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
4738 				    "FCoE context reset end.\n");
4739 			}
4740 		} else if (IS_QLAFX00(ha)) {
4741 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
4742 				&base_vha->dpc_flags)) {
4743 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
4744 				    "Firmware Reset Recovery\n");
4745 				if (qlafx00_reset_initialize(base_vha)) {
4746 					/* Failed. Abort isp later. */
4747 					if (!test_bit(UNLOADING,
4748 					    &base_vha->dpc_flags))
4749 						set_bit(ISP_UNRECOVERABLE,
4750 						    &base_vha->dpc_flags);
4751 						ql_dbg(ql_dbg_dpc, base_vha,
4752 						    0x4021,
4753 						    "Reset Recovery Failed\n");
4754 				}
4755 			}
4756 
4757 			if (test_and_clear_bit(FX00_TARGET_SCAN,
4758 				&base_vha->dpc_flags)) {
4759 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
4760 				    "ISPFx00 Target Scan scheduled\n");
4761 				if (qlafx00_rescan_isp(base_vha)) {
4762 					if (!test_bit(UNLOADING,
4763 					    &base_vha->dpc_flags))
4764 						set_bit(ISP_UNRECOVERABLE,
4765 						    &base_vha->dpc_flags);
4766 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
4767 					    "ISPFx00 Target Scan Failed\n");
4768 				}
4769 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
4770 				    "ISPFx00 Target Scan End\n");
4771 			}
4772 		}
4773 
4774 		if (test_and_clear_bit(ISP_ABORT_NEEDED,
4775 						&base_vha->dpc_flags)) {
4776 
4777 			ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
4778 			    "ISP abort scheduled.\n");
4779 			if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
4780 			    &base_vha->dpc_flags))) {
4781 
4782 				if (ha->isp_ops->abort_isp(base_vha)) {
4783 					/* failed. retry later */
4784 					set_bit(ISP_ABORT_NEEDED,
4785 					    &base_vha->dpc_flags);
4786 				}
4787 				clear_bit(ABORT_ISP_ACTIVE,
4788 						&base_vha->dpc_flags);
4789 			}
4790 
4791 			ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
4792 			    "ISP abort end.\n");
4793 		}
4794 
4795 		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
4796 		    &base_vha->dpc_flags)) {
4797 			qla2x00_update_fcports(base_vha);
4798 		}
4799 
4800 		if (test_bit(SCR_PENDING, &base_vha->dpc_flags)) {
4801 			int ret;
4802 			ret = qla2x00_send_change_request(base_vha, 0x3, 0);
4803 			if (ret != QLA_SUCCESS)
4804 				ql_log(ql_log_warn, base_vha, 0x121,
4805 				    "Failed to enable receiving of RSCN "
4806 				    "requests: 0x%x.\n", ret);
4807 			clear_bit(SCR_PENDING, &base_vha->dpc_flags);
4808 		}
4809 
4810 		if (IS_QLAFX00(ha))
4811 			goto loop_resync_check;
4812 
4813 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
4814 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
4815 			    "Quiescence mode scheduled.\n");
4816 			if (IS_QLA82XX(ha)) {
4817 				qla82xx_device_state_handler(base_vha);
4818 				clear_bit(ISP_QUIESCE_NEEDED,
4819 				    &base_vha->dpc_flags);
4820 				if (!ha->flags.quiesce_owner) {
4821 					qla2x00_perform_loop_resync(base_vha);
4822 
4823 					qla82xx_idc_lock(ha);
4824 					qla82xx_clear_qsnt_ready(base_vha);
4825 					qla82xx_idc_unlock(ha);
4826 				}
4827 			} else {
4828 				clear_bit(ISP_QUIESCE_NEEDED,
4829 				    &base_vha->dpc_flags);
4830 				qla2x00_quiesce_io(base_vha);
4831 			}
4832 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
4833 			    "Quiescence mode end.\n");
4834 		}
4835 
4836 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
4837 				&base_vha->dpc_flags) &&
4838 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
4839 
4840 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
4841 			    "Reset marker scheduled.\n");
4842 			qla2x00_rst_aen(base_vha);
4843 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
4844 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
4845 			    "Reset marker end.\n");
4846 		}
4847 
4848 		/* Retry each device up to login retry count */
4849 		if ((test_and_clear_bit(RELOGIN_NEEDED,
4850 						&base_vha->dpc_flags)) &&
4851 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
4852 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
4853 
4854 			ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
4855 			    "Relogin scheduled.\n");
4856 			qla2x00_relogin(base_vha);
4857 			ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
4858 			    "Relogin end.\n");
4859 		}
4860 loop_resync_check:
4861 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
4862 		    &base_vha->dpc_flags)) {
4863 
4864 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
4865 			    "Loop resync scheduled.\n");
4866 
4867 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
4868 			    &base_vha->dpc_flags))) {
4869 
4870 				rval = qla2x00_loop_resync(base_vha);
4871 
4872 				clear_bit(LOOP_RESYNC_ACTIVE,
4873 						&base_vha->dpc_flags);
4874 			}
4875 
4876 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
4877 			    "Loop resync end.\n");
4878 		}
4879 
4880 		if (IS_QLAFX00(ha))
4881 			goto intr_on_check;
4882 
4883 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
4884 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
4885 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
4886 			qla2xxx_flash_npiv_conf(base_vha);
4887 		}
4888 
4889 		if (test_and_clear_bit(HOST_RAMP_DOWN_QUEUE_DEPTH,
4890 		    &base_vha->dpc_flags)) {
4891 			/* Prevents simultaneous ramp up and down */
4892 			clear_bit(HOST_RAMP_UP_QUEUE_DEPTH,
4893 			    &base_vha->dpc_flags);
4894 			qla2x00_host_ramp_down_queuedepth(base_vha);
4895 		}
4896 
4897 		if (test_and_clear_bit(HOST_RAMP_UP_QUEUE_DEPTH,
4898 		    &base_vha->dpc_flags))
4899 			qla2x00_host_ramp_up_queuedepth(base_vha);
4900 intr_on_check:
4901 		if (!ha->interrupts_on)
4902 			ha->isp_ops->enable_intrs(ha);
4903 
4904 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
4905 					&base_vha->dpc_flags))
4906 			ha->isp_ops->beacon_blink(base_vha);
4907 
4908 		if (!IS_QLAFX00(ha))
4909 			qla2x00_do_dpc_all_vps(base_vha);
4910 
4911 		ha->dpc_active = 0;
4912 end_loop:
4913 		set_current_state(TASK_INTERRUPTIBLE);
4914 	} /* End of while(1) */
4915 	__set_current_state(TASK_RUNNING);
4916 
4917 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
4918 	    "DPC handler exiting.\n");
4919 
4920 	/*
4921 	 * Make sure that nobody tries to wake us up again.
4922 	 */
4923 	ha->dpc_active = 0;
4924 
4925 	/* Cleanup any residual CTX SRBs. */
4926 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
4927 
4928 	return 0;
4929 }
4930 
4931 void
4932 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
4933 {
4934 	struct qla_hw_data *ha = vha->hw;
4935 	struct task_struct *t = ha->dpc_thread;
4936 
4937 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
4938 		wake_up_process(t);
4939 }
4940 
4941 /*
4942 *  qla2x00_rst_aen
4943 *      Processes asynchronous reset.
4944 *
4945 * Input:
4946 *      ha  = adapter block pointer.
4947 */
4948 static void
4949 qla2x00_rst_aen(scsi_qla_host_t *vha)
4950 {
4951 	if (vha->flags.online && !vha->flags.reset_active &&
4952 	    !atomic_read(&vha->loop_down_timer) &&
4953 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
4954 		do {
4955 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4956 
4957 			/*
4958 			 * Issue marker command only when we are going to start
4959 			 * the I/O.
4960 			 */
4961 			vha->marker_needed = 1;
4962 		} while (!atomic_read(&vha->loop_down_timer) &&
4963 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
4964 	}
4965 }
4966 
4967 /**************************************************************************
4968 *   qla2x00_timer
4969 *
4970 * Description:
4971 *   One second timer
4972 *
4973 * Context: Interrupt
4974 ***************************************************************************/
4975 void
4976 qla2x00_timer(scsi_qla_host_t *vha)
4977 {
4978 	unsigned long	cpu_flags = 0;
4979 	int		start_dpc = 0;
4980 	int		index;
4981 	srb_t		*sp;
4982 	uint16_t        w;
4983 	struct qla_hw_data *ha = vha->hw;
4984 	struct req_que *req;
4985 
4986 	if (ha->flags.eeh_busy) {
4987 		ql_dbg(ql_dbg_timer, vha, 0x6000,
4988 		    "EEH = %d, restarting timer.\n",
4989 		    ha->flags.eeh_busy);
4990 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
4991 		return;
4992 	}
4993 
4994 	/* Hardware read to raise pending EEH errors during mailbox waits. */
4995 	if (!pci_channel_offline(ha->pdev))
4996 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
4997 
4998 	/* Make sure qla82xx_watchdog is run only for physical port */
4999 	if (!vha->vp_idx && IS_QLA82XX(ha)) {
5000 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
5001 			start_dpc++;
5002 		qla82xx_watchdog(vha);
5003 	}
5004 
5005 	if (!vha->vp_idx && IS_QLAFX00(ha))
5006 		qlafx00_timer_routine(vha);
5007 
5008 	/* Loop down handler. */
5009 	if (atomic_read(&vha->loop_down_timer) > 0 &&
5010 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
5011 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
5012 		&& vha->flags.online) {
5013 
5014 		if (atomic_read(&vha->loop_down_timer) ==
5015 		    vha->loop_down_abort_time) {
5016 
5017 			ql_log(ql_log_info, vha, 0x6008,
5018 			    "Loop down - aborting the queues before time expires.\n");
5019 
5020 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
5021 				atomic_set(&vha->loop_state, LOOP_DEAD);
5022 
5023 			/*
5024 			 * Schedule an ISP abort to return any FCP2-device
5025 			 * commands.
5026 			 */
5027 			/* NPIV - scan physical port only */
5028 			if (!vha->vp_idx) {
5029 				spin_lock_irqsave(&ha->hardware_lock,
5030 				    cpu_flags);
5031 				req = ha->req_q_map[0];
5032 				for (index = 1;
5033 				    index < req->num_outstanding_cmds;
5034 				    index++) {
5035 					fc_port_t *sfcp;
5036 
5037 					sp = req->outstanding_cmds[index];
5038 					if (!sp)
5039 						continue;
5040 					if (sp->type != SRB_SCSI_CMD)
5041 						continue;
5042 					sfcp = sp->fcport;
5043 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
5044 						continue;
5045 
5046 					if (IS_QLA82XX(ha))
5047 						set_bit(FCOE_CTX_RESET_NEEDED,
5048 							&vha->dpc_flags);
5049 					else
5050 						set_bit(ISP_ABORT_NEEDED,
5051 							&vha->dpc_flags);
5052 					break;
5053 				}
5054 				spin_unlock_irqrestore(&ha->hardware_lock,
5055 								cpu_flags);
5056 			}
5057 			start_dpc++;
5058 		}
5059 
5060 		/* if the loop has been down for 4 minutes, reinit adapter */
5061 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
5062 			if (!(vha->device_flags & DFLG_NO_CABLE)) {
5063 				ql_log(ql_log_warn, vha, 0x6009,
5064 				    "Loop down - aborting ISP.\n");
5065 
5066 				if (IS_QLA82XX(ha))
5067 					set_bit(FCOE_CTX_RESET_NEEDED,
5068 						&vha->dpc_flags);
5069 				else
5070 					set_bit(ISP_ABORT_NEEDED,
5071 						&vha->dpc_flags);
5072 			}
5073 		}
5074 		ql_dbg(ql_dbg_timer, vha, 0x600a,
5075 		    "Loop down - seconds remaining %d.\n",
5076 		    atomic_read(&vha->loop_down_timer));
5077 	}
5078 
5079 	/* Check if beacon LED needs to be blinked for physical host only */
5080 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
5081 		/* There is no beacon_blink function for ISP82xx */
5082 		if (!IS_QLA82XX(ha)) {
5083 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
5084 			start_dpc++;
5085 		}
5086 	}
5087 
5088 	/* Process any deferred work. */
5089 	if (!list_empty(&vha->work_list))
5090 		start_dpc++;
5091 
5092 	/* Schedule the DPC routine if needed */
5093 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
5094 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
5095 	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
5096 	    start_dpc ||
5097 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
5098 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
5099 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
5100 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
5101 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
5102 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
5103 	    test_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags) ||
5104 	    test_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags))) {
5105 		ql_dbg(ql_dbg_timer, vha, 0x600b,
5106 		    "isp_abort_needed=%d loop_resync_needed=%d "
5107 		    "fcport_update_needed=%d start_dpc=%d "
5108 		    "reset_marker_needed=%d",
5109 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
5110 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
5111 		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
5112 		    start_dpc,
5113 		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
5114 		ql_dbg(ql_dbg_timer, vha, 0x600c,
5115 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
5116 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
5117 		    "relogin_needed=%d, host_ramp_down_needed=%d "
5118 		    "host_ramp_up_needed=%d.\n",
5119 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
5120 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
5121 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
5122 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
5123 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
5124 		    test_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags),
5125 		    test_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags));
5126 		qla2xxx_wake_dpc(vha);
5127 	}
5128 
5129 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
5130 }
5131 
5132 /* Firmware interface routines. */
5133 
5134 #define FW_BLOBS	10
5135 #define FW_ISP21XX	0
5136 #define FW_ISP22XX	1
5137 #define FW_ISP2300	2
5138 #define FW_ISP2322	3
5139 #define FW_ISP24XX	4
5140 #define FW_ISP25XX	5
5141 #define FW_ISP81XX	6
5142 #define FW_ISP82XX	7
5143 #define FW_ISP2031	8
5144 #define FW_ISP8031	9
5145 
5146 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
5147 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
5148 #define FW_FILE_ISP2300	"ql2300_fw.bin"
5149 #define FW_FILE_ISP2322	"ql2322_fw.bin"
5150 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
5151 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
5152 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
5153 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
5154 #define FW_FILE_ISP2031	"ql2600_fw.bin"
5155 #define FW_FILE_ISP8031	"ql8300_fw.bin"
5156 
5157 static DEFINE_MUTEX(qla_fw_lock);
5158 
5159 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
5160 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
5161 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
5162 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
5163 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5164 	{ .name = FW_FILE_ISP24XX, },
5165 	{ .name = FW_FILE_ISP25XX, },
5166 	{ .name = FW_FILE_ISP81XX, },
5167 	{ .name = FW_FILE_ISP82XX, },
5168 	{ .name = FW_FILE_ISP2031, },
5169 	{ .name = FW_FILE_ISP8031, },
5170 };
5171 
5172 struct fw_blob *
5173 qla2x00_request_firmware(scsi_qla_host_t *vha)
5174 {
5175 	struct qla_hw_data *ha = vha->hw;
5176 	struct fw_blob *blob;
5177 
5178 	if (IS_QLA2100(ha)) {
5179 		blob = &qla_fw_blobs[FW_ISP21XX];
5180 	} else if (IS_QLA2200(ha)) {
5181 		blob = &qla_fw_blobs[FW_ISP22XX];
5182 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5183 		blob = &qla_fw_blobs[FW_ISP2300];
5184 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5185 		blob = &qla_fw_blobs[FW_ISP2322];
5186 	} else if (IS_QLA24XX_TYPE(ha)) {
5187 		blob = &qla_fw_blobs[FW_ISP24XX];
5188 	} else if (IS_QLA25XX(ha)) {
5189 		blob = &qla_fw_blobs[FW_ISP25XX];
5190 	} else if (IS_QLA81XX(ha)) {
5191 		blob = &qla_fw_blobs[FW_ISP81XX];
5192 	} else if (IS_QLA82XX(ha)) {
5193 		blob = &qla_fw_blobs[FW_ISP82XX];
5194 	} else if (IS_QLA2031(ha)) {
5195 		blob = &qla_fw_blobs[FW_ISP2031];
5196 	} else if (IS_QLA8031(ha)) {
5197 		blob = &qla_fw_blobs[FW_ISP8031];
5198 	} else {
5199 		return NULL;
5200 	}
5201 
5202 	mutex_lock(&qla_fw_lock);
5203 	if (blob->fw)
5204 		goto out;
5205 
5206 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
5207 		ql_log(ql_log_warn, vha, 0x0063,
5208 		    "Failed to load firmware image (%s).\n", blob->name);
5209 		blob->fw = NULL;
5210 		blob = NULL;
5211 		goto out;
5212 	}
5213 
5214 out:
5215 	mutex_unlock(&qla_fw_lock);
5216 	return blob;
5217 }
5218 
5219 static void
5220 qla2x00_release_firmware(void)
5221 {
5222 	int idx;
5223 
5224 	mutex_lock(&qla_fw_lock);
5225 	for (idx = 0; idx < FW_BLOBS; idx++)
5226 		release_firmware(qla_fw_blobs[idx].fw);
5227 	mutex_unlock(&qla_fw_lock);
5228 }
5229 
5230 static pci_ers_result_t
5231 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
5232 {
5233 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
5234 	struct qla_hw_data *ha = vha->hw;
5235 
5236 	ql_dbg(ql_dbg_aer, vha, 0x9000,
5237 	    "PCI error detected, state %x.\n", state);
5238 
5239 	switch (state) {
5240 	case pci_channel_io_normal:
5241 		ha->flags.eeh_busy = 0;
5242 		return PCI_ERS_RESULT_CAN_RECOVER;
5243 	case pci_channel_io_frozen:
5244 		ha->flags.eeh_busy = 1;
5245 		/* For ISP82XX complete any pending mailbox cmd */
5246 		if (IS_QLA82XX(ha)) {
5247 			ha->flags.isp82xx_fw_hung = 1;
5248 			ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
5249 			qla82xx_clear_pending_mbx(vha);
5250 		}
5251 		qla2x00_free_irqs(vha);
5252 		pci_disable_device(pdev);
5253 		/* Return back all IOs */
5254 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
5255 		return PCI_ERS_RESULT_NEED_RESET;
5256 	case pci_channel_io_perm_failure:
5257 		ha->flags.pci_channel_io_perm_failure = 1;
5258 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
5259 		return PCI_ERS_RESULT_DISCONNECT;
5260 	}
5261 	return PCI_ERS_RESULT_NEED_RESET;
5262 }
5263 
5264 static pci_ers_result_t
5265 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
5266 {
5267 	int risc_paused = 0;
5268 	uint32_t stat;
5269 	unsigned long flags;
5270 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5271 	struct qla_hw_data *ha = base_vha->hw;
5272 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
5273 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
5274 
5275 	if (IS_QLA82XX(ha))
5276 		return PCI_ERS_RESULT_RECOVERED;
5277 
5278 	spin_lock_irqsave(&ha->hardware_lock, flags);
5279 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
5280 		stat = RD_REG_DWORD(&reg->hccr);
5281 		if (stat & HCCR_RISC_PAUSE)
5282 			risc_paused = 1;
5283 	} else if (IS_QLA23XX(ha)) {
5284 		stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
5285 		if (stat & HSR_RISC_PAUSED)
5286 			risc_paused = 1;
5287 	} else if (IS_FWI2_CAPABLE(ha)) {
5288 		stat = RD_REG_DWORD(&reg24->host_status);
5289 		if (stat & HSRX_RISC_PAUSED)
5290 			risc_paused = 1;
5291 	}
5292 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
5293 
5294 	if (risc_paused) {
5295 		ql_log(ql_log_info, base_vha, 0x9003,
5296 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
5297 		ha->isp_ops->fw_dump(base_vha, 0);
5298 
5299 		return PCI_ERS_RESULT_NEED_RESET;
5300 	} else
5301 		return PCI_ERS_RESULT_RECOVERED;
5302 }
5303 
5304 static uint32_t
5305 qla82xx_error_recovery(scsi_qla_host_t *base_vha)
5306 {
5307 	uint32_t rval = QLA_FUNCTION_FAILED;
5308 	uint32_t drv_active = 0;
5309 	struct qla_hw_data *ha = base_vha->hw;
5310 	int fn;
5311 	struct pci_dev *other_pdev = NULL;
5312 
5313 	ql_dbg(ql_dbg_aer, base_vha, 0x9006,
5314 	    "Entered %s.\n", __func__);
5315 
5316 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5317 
5318 	if (base_vha->flags.online) {
5319 		/* Abort all outstanding commands,
5320 		 * so as to be requeued later */
5321 		qla2x00_abort_isp_cleanup(base_vha);
5322 	}
5323 
5324 
5325 	fn = PCI_FUNC(ha->pdev->devfn);
5326 	while (fn > 0) {
5327 		fn--;
5328 		ql_dbg(ql_dbg_aer, base_vha, 0x9007,
5329 		    "Finding pci device at function = 0x%x.\n", fn);
5330 		other_pdev =
5331 		    pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
5332 		    ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
5333 		    fn));
5334 
5335 		if (!other_pdev)
5336 			continue;
5337 		if (atomic_read(&other_pdev->enable_cnt)) {
5338 			ql_dbg(ql_dbg_aer, base_vha, 0x9008,
5339 			    "Found PCI func available and enable at 0x%x.\n",
5340 			    fn);
5341 			pci_dev_put(other_pdev);
5342 			break;
5343 		}
5344 		pci_dev_put(other_pdev);
5345 	}
5346 
5347 	if (!fn) {
5348 		/* Reset owner */
5349 		ql_dbg(ql_dbg_aer, base_vha, 0x9009,
5350 		    "This devfn is reset owner = 0x%x.\n",
5351 		    ha->pdev->devfn);
5352 		qla82xx_idc_lock(ha);
5353 
5354 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5355 		    QLA8XXX_DEV_INITIALIZING);
5356 
5357 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
5358 		    QLA82XX_IDC_VERSION);
5359 
5360 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
5361 		ql_dbg(ql_dbg_aer, base_vha, 0x900a,
5362 		    "drv_active = 0x%x.\n", drv_active);
5363 
5364 		qla82xx_idc_unlock(ha);
5365 		/* Reset if device is not already reset
5366 		 * drv_active would be 0 if a reset has already been done
5367 		 */
5368 		if (drv_active)
5369 			rval = qla82xx_start_firmware(base_vha);
5370 		else
5371 			rval = QLA_SUCCESS;
5372 		qla82xx_idc_lock(ha);
5373 
5374 		if (rval != QLA_SUCCESS) {
5375 			ql_log(ql_log_info, base_vha, 0x900b,
5376 			    "HW State: FAILED.\n");
5377 			qla82xx_clear_drv_active(ha);
5378 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5379 			    QLA8XXX_DEV_FAILED);
5380 		} else {
5381 			ql_log(ql_log_info, base_vha, 0x900c,
5382 			    "HW State: READY.\n");
5383 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5384 			    QLA8XXX_DEV_READY);
5385 			qla82xx_idc_unlock(ha);
5386 			ha->flags.isp82xx_fw_hung = 0;
5387 			rval = qla82xx_restart_isp(base_vha);
5388 			qla82xx_idc_lock(ha);
5389 			/* Clear driver state register */
5390 			qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
5391 			qla82xx_set_drv_active(base_vha);
5392 		}
5393 		qla82xx_idc_unlock(ha);
5394 	} else {
5395 		ql_dbg(ql_dbg_aer, base_vha, 0x900d,
5396 		    "This devfn is not reset owner = 0x%x.\n",
5397 		    ha->pdev->devfn);
5398 		if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
5399 		    QLA8XXX_DEV_READY)) {
5400 			ha->flags.isp82xx_fw_hung = 0;
5401 			rval = qla82xx_restart_isp(base_vha);
5402 			qla82xx_idc_lock(ha);
5403 			qla82xx_set_drv_active(base_vha);
5404 			qla82xx_idc_unlock(ha);
5405 		}
5406 	}
5407 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5408 
5409 	return rval;
5410 }
5411 
5412 static pci_ers_result_t
5413 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
5414 {
5415 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
5416 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5417 	struct qla_hw_data *ha = base_vha->hw;
5418 	struct rsp_que *rsp;
5419 	int rc, retries = 10;
5420 
5421 	ql_dbg(ql_dbg_aer, base_vha, 0x9004,
5422 	    "Slot Reset.\n");
5423 
5424 	/* Workaround: qla2xxx driver which access hardware earlier
5425 	 * needs error state to be pci_channel_io_online.
5426 	 * Otherwise mailbox command timesout.
5427 	 */
5428 	pdev->error_state = pci_channel_io_normal;
5429 
5430 	pci_restore_state(pdev);
5431 
5432 	/* pci_restore_state() clears the saved_state flag of the device
5433 	 * save restored state which resets saved_state flag
5434 	 */
5435 	pci_save_state(pdev);
5436 
5437 	if (ha->mem_only)
5438 		rc = pci_enable_device_mem(pdev);
5439 	else
5440 		rc = pci_enable_device(pdev);
5441 
5442 	if (rc) {
5443 		ql_log(ql_log_warn, base_vha, 0x9005,
5444 		    "Can't re-enable PCI device after reset.\n");
5445 		goto exit_slot_reset;
5446 	}
5447 
5448 	rsp = ha->rsp_q_map[0];
5449 	if (qla2x00_request_irqs(ha, rsp))
5450 		goto exit_slot_reset;
5451 
5452 	if (ha->isp_ops->pci_config(base_vha))
5453 		goto exit_slot_reset;
5454 
5455 	if (IS_QLA82XX(ha)) {
5456 		if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
5457 			ret = PCI_ERS_RESULT_RECOVERED;
5458 			goto exit_slot_reset;
5459 		} else
5460 			goto exit_slot_reset;
5461 	}
5462 
5463 	while (ha->flags.mbox_busy && retries--)
5464 		msleep(1000);
5465 
5466 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5467 	if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
5468 		ret =  PCI_ERS_RESULT_RECOVERED;
5469 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5470 
5471 
5472 exit_slot_reset:
5473 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
5474 	    "slot_reset return %x.\n", ret);
5475 
5476 	return ret;
5477 }
5478 
5479 static void
5480 qla2xxx_pci_resume(struct pci_dev *pdev)
5481 {
5482 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5483 	struct qla_hw_data *ha = base_vha->hw;
5484 	int ret;
5485 
5486 	ql_dbg(ql_dbg_aer, base_vha, 0x900f,
5487 	    "pci_resume.\n");
5488 
5489 	ret = qla2x00_wait_for_hba_online(base_vha);
5490 	if (ret != QLA_SUCCESS) {
5491 		ql_log(ql_log_fatal, base_vha, 0x9002,
5492 		    "The device failed to resume I/O from slot/link_reset.\n");
5493 	}
5494 
5495 	pci_cleanup_aer_uncorrect_error_status(pdev);
5496 
5497 	ha->flags.eeh_busy = 0;
5498 }
5499 
5500 static const struct pci_error_handlers qla2xxx_err_handler = {
5501 	.error_detected = qla2xxx_pci_error_detected,
5502 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
5503 	.slot_reset = qla2xxx_pci_slot_reset,
5504 	.resume = qla2xxx_pci_resume,
5505 };
5506 
5507 static struct pci_device_id qla2xxx_pci_tbl[] = {
5508 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
5509 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
5510 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
5511 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
5512 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
5513 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
5514 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
5515 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
5516 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
5517 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
5518 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
5519 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5520 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
5521 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
5522 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
5523 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
5524 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
5525 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
5526 	{ 0 },
5527 };
5528 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
5529 
5530 static struct pci_driver qla2xxx_pci_driver = {
5531 	.name		= QLA2XXX_DRIVER_NAME,
5532 	.driver		= {
5533 		.owner		= THIS_MODULE,
5534 	},
5535 	.id_table	= qla2xxx_pci_tbl,
5536 	.probe		= qla2x00_probe_one,
5537 	.remove		= qla2x00_remove_one,
5538 	.shutdown	= qla2x00_shutdown,
5539 	.err_handler	= &qla2xxx_err_handler,
5540 };
5541 
5542 static const struct file_operations apidev_fops = {
5543 	.owner = THIS_MODULE,
5544 	.llseek = noop_llseek,
5545 };
5546 
5547 /**
5548  * qla2x00_module_init - Module initialization.
5549  **/
5550 static int __init
5551 qla2x00_module_init(void)
5552 {
5553 	int ret = 0;
5554 
5555 	/* Allocate cache for SRBs. */
5556 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
5557 	    SLAB_HWCACHE_ALIGN, NULL);
5558 	if (srb_cachep == NULL) {
5559 		ql_log(ql_log_fatal, NULL, 0x0001,
5560 		    "Unable to allocate SRB cache...Failing load!.\n");
5561 		return -ENOMEM;
5562 	}
5563 
5564 	/* Initialize target kmem_cache and mem_pools */
5565 	ret = qlt_init();
5566 	if (ret < 0) {
5567 		kmem_cache_destroy(srb_cachep);
5568 		return ret;
5569 	} else if (ret > 0) {
5570 		/*
5571 		 * If initiator mode is explictly disabled by qlt_init(),
5572 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
5573 		 * performing scsi_scan_target() during LOOP UP event.
5574 		 */
5575 		qla2xxx_transport_functions.disable_target_scan = 1;
5576 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
5577 	}
5578 
5579 	/* Derive version string. */
5580 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5581 	if (ql2xextended_error_logging)
5582 		strcat(qla2x00_version_str, "-debug");
5583 
5584 	qla2xxx_transport_template =
5585 	    fc_attach_transport(&qla2xxx_transport_functions);
5586 	if (!qla2xxx_transport_template) {
5587 		kmem_cache_destroy(srb_cachep);
5588 		ql_log(ql_log_fatal, NULL, 0x0002,
5589 		    "fc_attach_transport failed...Failing load!.\n");
5590 		qlt_exit();
5591 		return -ENODEV;
5592 	}
5593 
5594 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
5595 	if (apidev_major < 0) {
5596 		ql_log(ql_log_fatal, NULL, 0x0003,
5597 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
5598 	}
5599 
5600 	qla2xxx_transport_vport_template =
5601 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
5602 	if (!qla2xxx_transport_vport_template) {
5603 		kmem_cache_destroy(srb_cachep);
5604 		qlt_exit();
5605 		fc_release_transport(qla2xxx_transport_template);
5606 		ql_log(ql_log_fatal, NULL, 0x0004,
5607 		    "fc_attach_transport vport failed...Failing load!.\n");
5608 		return -ENODEV;
5609 	}
5610 	ql_log(ql_log_info, NULL, 0x0005,
5611 	    "QLogic Fibre Channel HBA Driver: %s.\n",
5612 	    qla2x00_version_str);
5613 	ret = pci_register_driver(&qla2xxx_pci_driver);
5614 	if (ret) {
5615 		kmem_cache_destroy(srb_cachep);
5616 		qlt_exit();
5617 		fc_release_transport(qla2xxx_transport_template);
5618 		fc_release_transport(qla2xxx_transport_vport_template);
5619 		ql_log(ql_log_fatal, NULL, 0x0006,
5620 		    "pci_register_driver failed...ret=%d Failing load!.\n",
5621 		    ret);
5622 	}
5623 	return ret;
5624 }
5625 
5626 /**
5627  * qla2x00_module_exit - Module cleanup.
5628  **/
5629 static void __exit
5630 qla2x00_module_exit(void)
5631 {
5632 	unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
5633 	pci_unregister_driver(&qla2xxx_pci_driver);
5634 	qla2x00_release_firmware();
5635 	kmem_cache_destroy(srb_cachep);
5636 	qlt_exit();
5637 	if (ctx_cachep)
5638 		kmem_cache_destroy(ctx_cachep);
5639 	fc_release_transport(qla2xxx_transport_template);
5640 	fc_release_transport(qla2xxx_transport_vport_template);
5641 }
5642 
5643 module_init(qla2x00_module_init);
5644 module_exit(qla2x00_module_exit);
5645 
5646 MODULE_AUTHOR("QLogic Corporation");
5647 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
5648 MODULE_LICENSE("GPL");
5649 MODULE_VERSION(QLA2XXX_VERSION);
5650 MODULE_FIRMWARE(FW_FILE_ISP21XX);
5651 MODULE_FIRMWARE(FW_FILE_ISP22XX);
5652 MODULE_FIRMWARE(FW_FILE_ISP2300);
5653 MODULE_FIRMWARE(FW_FILE_ISP2322);
5654 MODULE_FIRMWARE(FW_FILE_ISP24XX);
5655 MODULE_FIRMWARE(FW_FILE_ISP25XX);
5656