xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_os.c (revision 089a49b6)
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 int ql2xfdmienable=1;
108 module_param(ql2xfdmienable, int, S_IRUGO);
109 MODULE_PARM_DESC(ql2xfdmienable,
110 		"Enables FDMI registrations. "
111 		"0 - no FDMI. Default is 1 - perform FDMI.");
112 
113 int ql2xmaxqdepth = MAX_Q_DEPTH;
114 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
115 MODULE_PARM_DESC(ql2xmaxqdepth,
116 		"Maximum queue depth to set for each LUN. "
117 		"Default is 32.");
118 
119 int ql2xenabledif = 2;
120 module_param(ql2xenabledif, int, S_IRUGO);
121 MODULE_PARM_DESC(ql2xenabledif,
122 		" Enable T10-CRC-DIF "
123 		" Default is 0 - No DIF Support. 1 - Enable it"
124 		", 2 - Enable DIF for all types, except Type 0.");
125 
126 int ql2xenablehba_err_chk = 2;
127 module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
128 MODULE_PARM_DESC(ql2xenablehba_err_chk,
129 		" Enable T10-CRC-DIF Error isolation by HBA:\n"
130 		" Default is 1.\n"
131 		"  0 -- Error isolation disabled\n"
132 		"  1 -- Error isolation enabled only for DIX Type 0\n"
133 		"  2 -- Error isolation enabled for all Types\n");
134 
135 int ql2xiidmaenable=1;
136 module_param(ql2xiidmaenable, int, S_IRUGO);
137 MODULE_PARM_DESC(ql2xiidmaenable,
138 		"Enables iIDMA settings "
139 		"Default is 1 - perform iIDMA. 0 - no iIDMA.");
140 
141 int ql2xmaxqueues = 1;
142 module_param(ql2xmaxqueues, int, S_IRUGO);
143 MODULE_PARM_DESC(ql2xmaxqueues,
144 		"Enables MQ settings "
145 		"Default is 1 for single queue. Set it to number "
146 		"of queues in MQ mode.");
147 
148 int ql2xmultique_tag;
149 module_param(ql2xmultique_tag, int, S_IRUGO);
150 MODULE_PARM_DESC(ql2xmultique_tag,
151 		"Enables CPU affinity settings for the driver "
152 		"Default is 0 for no affinity of request and response IO. "
153 		"Set it to 1 to turn on the cpu affinity.");
154 
155 int ql2xfwloadbin;
156 module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
157 MODULE_PARM_DESC(ql2xfwloadbin,
158 		"Option to specify location from which to load ISP firmware:.\n"
159 		" 2 -- load firmware via the request_firmware() (hotplug).\n"
160 		"      interface.\n"
161 		" 1 -- load firmware from flash.\n"
162 		" 0 -- use default semantics.\n");
163 
164 int ql2xetsenable;
165 module_param(ql2xetsenable, int, S_IRUGO);
166 MODULE_PARM_DESC(ql2xetsenable,
167 		"Enables firmware ETS burst."
168 		"Default is 0 - skip ETS enablement.");
169 
170 int ql2xdbwr = 1;
171 module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
172 MODULE_PARM_DESC(ql2xdbwr,
173 		"Option to specify scheme for request queue posting.\n"
174 		" 0 -- Regular doorbell.\n"
175 		" 1 -- CAMRAM doorbell (faster).\n");
176 
177 int ql2xtargetreset = 1;
178 module_param(ql2xtargetreset, int, S_IRUGO);
179 MODULE_PARM_DESC(ql2xtargetreset,
180 		 "Enable target reset."
181 		 "Default is 1 - use hw defaults.");
182 
183 int ql2xgffidenable;
184 module_param(ql2xgffidenable, int, S_IRUGO);
185 MODULE_PARM_DESC(ql2xgffidenable,
186 		"Enables GFF_ID checks of port type. "
187 		"Default is 0 - Do not use GFF_ID information.");
188 
189 int ql2xasynctmfenable;
190 module_param(ql2xasynctmfenable, int, S_IRUGO);
191 MODULE_PARM_DESC(ql2xasynctmfenable,
192 		"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
193 		"Default is 0 - Issue TM IOCBs via mailbox mechanism.");
194 
195 int ql2xdontresethba;
196 module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
197 MODULE_PARM_DESC(ql2xdontresethba,
198 		"Option to specify reset behaviour.\n"
199 		" 0 (Default) -- Reset on failure.\n"
200 		" 1 -- Do not reset on failure.\n");
201 
202 uint ql2xmaxlun = MAX_LUNS;
203 module_param(ql2xmaxlun, uint, S_IRUGO);
204 MODULE_PARM_DESC(ql2xmaxlun,
205 		"Defines the maximum LU number to register with the SCSI "
206 		"midlayer. Default is 65535.");
207 
208 int ql2xmdcapmask = 0x1F;
209 module_param(ql2xmdcapmask, int, S_IRUGO);
210 MODULE_PARM_DESC(ql2xmdcapmask,
211 		"Set the Minidump driver capture mask level. "
212 		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
213 
214 int ql2xmdenable = 1;
215 module_param(ql2xmdenable, int, S_IRUGO);
216 MODULE_PARM_DESC(ql2xmdenable,
217 		"Enable/disable MiniDump. "
218 		"0 - MiniDump disabled. "
219 		"1 (Default) - MiniDump enabled.");
220 
221 /*
222  * SCSI host template entry points
223  */
224 static int qla2xxx_slave_configure(struct scsi_device * device);
225 static int qla2xxx_slave_alloc(struct scsi_device *);
226 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
227 static void qla2xxx_scan_start(struct Scsi_Host *);
228 static void qla2xxx_slave_destroy(struct scsi_device *);
229 static int qla2xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd);
230 static int qla2xxx_eh_abort(struct scsi_cmnd *);
231 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
232 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
233 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
234 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
235 
236 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
237 static int qla2x00_change_queue_type(struct scsi_device *, int);
238 static void qla2x00_free_device(scsi_qla_host_t *);
239 
240 struct scsi_host_template qla2xxx_driver_template = {
241 	.module			= THIS_MODULE,
242 	.name			= QLA2XXX_DRIVER_NAME,
243 	.queuecommand		= qla2xxx_queuecommand,
244 
245 	.eh_abort_handler	= qla2xxx_eh_abort,
246 	.eh_device_reset_handler = qla2xxx_eh_device_reset,
247 	.eh_target_reset_handler = qla2xxx_eh_target_reset,
248 	.eh_bus_reset_handler	= qla2xxx_eh_bus_reset,
249 	.eh_host_reset_handler	= qla2xxx_eh_host_reset,
250 
251 	.slave_configure	= qla2xxx_slave_configure,
252 
253 	.slave_alloc		= qla2xxx_slave_alloc,
254 	.slave_destroy		= qla2xxx_slave_destroy,
255 	.scan_finished		= qla2xxx_scan_finished,
256 	.scan_start		= qla2xxx_scan_start,
257 	.change_queue_depth	= qla2x00_change_queue_depth,
258 	.change_queue_type	= qla2x00_change_queue_type,
259 	.this_id		= -1,
260 	.cmd_per_lun		= 3,
261 	.use_clustering		= ENABLE_CLUSTERING,
262 	.sg_tablesize		= SG_ALL,
263 
264 	.max_sectors		= 0xFFFF,
265 	.shost_attrs		= qla2x00_host_attrs,
266 
267 	.supported_mode		= MODE_INITIATOR,
268 };
269 
270 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
271 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
272 
273 /* TODO Convert to inlines
274  *
275  * Timer routines
276  */
277 
278 __inline__ void
279 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
280 {
281 	init_timer(&vha->timer);
282 	vha->timer.expires = jiffies + interval * HZ;
283 	vha->timer.data = (unsigned long)vha;
284 	vha->timer.function = (void (*)(unsigned long))func;
285 	add_timer(&vha->timer);
286 	vha->timer_active = 1;
287 }
288 
289 static inline void
290 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
291 {
292 	/* Currently used for 82XX only. */
293 	if (vha->device_flags & DFLG_DEV_FAILED) {
294 		ql_dbg(ql_dbg_timer, vha, 0x600d,
295 		    "Device in a failed state, returning.\n");
296 		return;
297 	}
298 
299 	mod_timer(&vha->timer, jiffies + interval * HZ);
300 }
301 
302 static __inline__ void
303 qla2x00_stop_timer(scsi_qla_host_t *vha)
304 {
305 	del_timer_sync(&vha->timer);
306 	vha->timer_active = 0;
307 }
308 
309 static int qla2x00_do_dpc(void *data);
310 
311 static void qla2x00_rst_aen(scsi_qla_host_t *);
312 
313 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
314 	struct req_que **, struct rsp_que **);
315 static void qla2x00_free_fw_dump(struct qla_hw_data *);
316 static void qla2x00_mem_free(struct qla_hw_data *);
317 
318 /* -------------------------------------------------------------------------- */
319 static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
320 				struct rsp_que *rsp)
321 {
322 	scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
323 	ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
324 				GFP_KERNEL);
325 	if (!ha->req_q_map) {
326 		ql_log(ql_log_fatal, vha, 0x003b,
327 		    "Unable to allocate memory for request queue ptrs.\n");
328 		goto fail_req_map;
329 	}
330 
331 	ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
332 				GFP_KERNEL);
333 	if (!ha->rsp_q_map) {
334 		ql_log(ql_log_fatal, vha, 0x003c,
335 		    "Unable to allocate memory for response queue ptrs.\n");
336 		goto fail_rsp_map;
337 	}
338 	/*
339 	 * Make sure we record at least the request and response queue zero in
340 	 * case we need to free them if part of the probe fails.
341 	 */
342 	ha->rsp_q_map[0] = rsp;
343 	ha->req_q_map[0] = req;
344 	set_bit(0, ha->rsp_qid_map);
345 	set_bit(0, ha->req_qid_map);
346 	return 1;
347 
348 fail_rsp_map:
349 	kfree(ha->req_q_map);
350 	ha->req_q_map = NULL;
351 fail_req_map:
352 	return -ENOMEM;
353 }
354 
355 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
356 {
357 	if (IS_QLAFX00(ha)) {
358 		if (req && req->ring_fx00)
359 			dma_free_coherent(&ha->pdev->dev,
360 			    (req->length_fx00 + 1) * sizeof(request_t),
361 			    req->ring_fx00, req->dma_fx00);
362 	} else if (req && req->ring)
363 		dma_free_coherent(&ha->pdev->dev,
364 		(req->length + 1) * sizeof(request_t),
365 		req->ring, req->dma);
366 
367 	if (req)
368 		kfree(req->outstanding_cmds);
369 
370 	kfree(req);
371 	req = NULL;
372 }
373 
374 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
375 {
376 	if (IS_QLAFX00(ha)) {
377 		if (rsp && rsp->ring)
378 			dma_free_coherent(&ha->pdev->dev,
379 			    (rsp->length_fx00 + 1) * sizeof(request_t),
380 			    rsp->ring_fx00, rsp->dma_fx00);
381 	} else if (rsp && rsp->ring) {
382 		dma_free_coherent(&ha->pdev->dev,
383 		(rsp->length + 1) * sizeof(response_t),
384 		rsp->ring, rsp->dma);
385 	}
386 	kfree(rsp);
387 	rsp = NULL;
388 }
389 
390 static void qla2x00_free_queues(struct qla_hw_data *ha)
391 {
392 	struct req_que *req;
393 	struct rsp_que *rsp;
394 	int cnt;
395 
396 	for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
397 		req = ha->req_q_map[cnt];
398 		qla2x00_free_req_que(ha, req);
399 	}
400 	kfree(ha->req_q_map);
401 	ha->req_q_map = NULL;
402 
403 	for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
404 		rsp = ha->rsp_q_map[cnt];
405 		qla2x00_free_rsp_que(ha, rsp);
406 	}
407 	kfree(ha->rsp_q_map);
408 	ha->rsp_q_map = NULL;
409 }
410 
411 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
412 {
413 	uint16_t options = 0;
414 	int ques, req, ret;
415 	struct qla_hw_data *ha = vha->hw;
416 
417 	if (!(ha->fw_attributes & BIT_6)) {
418 		ql_log(ql_log_warn, vha, 0x00d8,
419 		    "Firmware is not multi-queue capable.\n");
420 		goto fail;
421 	}
422 	if (ql2xmultique_tag) {
423 		/* create a request queue for IO */
424 		options |= BIT_7;
425 		req = qla25xx_create_req_que(ha, options, 0, 0, -1,
426 			QLA_DEFAULT_QUE_QOS);
427 		if (!req) {
428 			ql_log(ql_log_warn, vha, 0x00e0,
429 			    "Failed to create request queue.\n");
430 			goto fail;
431 		}
432 		ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
433 		vha->req = ha->req_q_map[req];
434 		options |= BIT_1;
435 		for (ques = 1; ques < ha->max_rsp_queues; ques++) {
436 			ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
437 			if (!ret) {
438 				ql_log(ql_log_warn, vha, 0x00e8,
439 				    "Failed to create response queue.\n");
440 				goto fail2;
441 			}
442 		}
443 		ha->flags.cpu_affinity_enabled = 1;
444 		ql_dbg(ql_dbg_multiq, vha, 0xc007,
445 		    "CPU affinity mode enalbed, "
446 		    "no. of response queues:%d no. of request queues:%d.\n",
447 		    ha->max_rsp_queues, ha->max_req_queues);
448 		ql_dbg(ql_dbg_init, vha, 0x00e9,
449 		    "CPU affinity mode enalbed, "
450 		    "no. of response queues:%d no. of request queues:%d.\n",
451 		    ha->max_rsp_queues, ha->max_req_queues);
452 	}
453 	return 0;
454 fail2:
455 	qla25xx_delete_queues(vha);
456 	destroy_workqueue(ha->wq);
457 	ha->wq = NULL;
458 	vha->req = ha->req_q_map[0];
459 fail:
460 	ha->mqenable = 0;
461 	kfree(ha->req_q_map);
462 	kfree(ha->rsp_q_map);
463 	ha->max_req_queues = ha->max_rsp_queues = 1;
464 	return 1;
465 }
466 
467 static char *
468 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
469 {
470 	struct qla_hw_data *ha = vha->hw;
471 	static char *pci_bus_modes[] = {
472 		"33", "66", "100", "133",
473 	};
474 	uint16_t pci_bus;
475 
476 	strcpy(str, "PCI");
477 	pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
478 	if (pci_bus) {
479 		strcat(str, "-X (");
480 		strcat(str, pci_bus_modes[pci_bus]);
481 	} else {
482 		pci_bus = (ha->pci_attr & BIT_8) >> 8;
483 		strcat(str, " (");
484 		strcat(str, pci_bus_modes[pci_bus]);
485 	}
486 	strcat(str, " MHz)");
487 
488 	return (str);
489 }
490 
491 static char *
492 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
493 {
494 	static char *pci_bus_modes[] = { "33", "66", "100", "133", };
495 	struct qla_hw_data *ha = vha->hw;
496 	uint32_t pci_bus;
497 	int pcie_reg;
498 
499 	pcie_reg = pci_pcie_cap(ha->pdev);
500 	if (pcie_reg) {
501 		char lwstr[6];
502 		uint16_t pcie_lstat, lspeed, lwidth;
503 
504 		pcie_reg += PCI_EXP_LNKCAP;
505 		pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
506 		lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
507 		lwidth = (pcie_lstat &
508 		    (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
509 
510 		strcpy(str, "PCIe (");
511 		switch (lspeed) {
512 		case 1:
513 			strcat(str, "2.5GT/s ");
514 			break;
515 		case 2:
516 			strcat(str, "5.0GT/s ");
517 			break;
518 		case 3:
519 			strcat(str, "8.0GT/s ");
520 			break;
521 		default:
522 			strcat(str, "<unknown> ");
523 			break;
524 		}
525 		snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
526 		strcat(str, lwstr);
527 
528 		return str;
529 	}
530 
531 	strcpy(str, "PCI");
532 	pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
533 	if (pci_bus == 0 || pci_bus == 8) {
534 		strcat(str, " (");
535 		strcat(str, pci_bus_modes[pci_bus >> 3]);
536 	} else {
537 		strcat(str, "-X ");
538 		if (pci_bus & BIT_2)
539 			strcat(str, "Mode 2");
540 		else
541 			strcat(str, "Mode 1");
542 		strcat(str, " (");
543 		strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
544 	}
545 	strcat(str, " MHz)");
546 
547 	return str;
548 }
549 
550 static char *
551 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
552 {
553 	char un_str[10];
554 	struct qla_hw_data *ha = vha->hw;
555 
556 	sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
557 	    ha->fw_minor_version,
558 	    ha->fw_subminor_version);
559 
560 	if (ha->fw_attributes & BIT_9) {
561 		strcat(str, "FLX");
562 		return (str);
563 	}
564 
565 	switch (ha->fw_attributes & 0xFF) {
566 	case 0x7:
567 		strcat(str, "EF");
568 		break;
569 	case 0x17:
570 		strcat(str, "TP");
571 		break;
572 	case 0x37:
573 		strcat(str, "IP");
574 		break;
575 	case 0x77:
576 		strcat(str, "VI");
577 		break;
578 	default:
579 		sprintf(un_str, "(%x)", ha->fw_attributes);
580 		strcat(str, un_str);
581 		break;
582 	}
583 	if (ha->fw_attributes & 0x100)
584 		strcat(str, "X");
585 
586 	return (str);
587 }
588 
589 static char *
590 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
591 {
592 	struct qla_hw_data *ha = vha->hw;
593 
594 	sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
595 	    ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
596 	return str;
597 }
598 
599 void
600 qla2x00_sp_free_dma(void *vha, void *ptr)
601 {
602 	srb_t *sp = (srb_t *)ptr;
603 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
604 	struct qla_hw_data *ha = sp->fcport->vha->hw;
605 	void *ctx = GET_CMD_CTX_SP(sp);
606 
607 	if (sp->flags & SRB_DMA_VALID) {
608 		scsi_dma_unmap(cmd);
609 		sp->flags &= ~SRB_DMA_VALID;
610 	}
611 
612 	if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
613 		dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
614 		    scsi_prot_sg_count(cmd), cmd->sc_data_direction);
615 		sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
616 	}
617 
618 	if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
619 		/* List assured to be having elements */
620 		qla2x00_clean_dsd_pool(ha, sp);
621 		sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
622 	}
623 
624 	if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
625 		dma_pool_free(ha->dl_dma_pool, ctx,
626 		    ((struct crc_context *)ctx)->crc_ctx_dma);
627 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
628 	}
629 
630 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
631 		struct ct6_dsd *ctx1 = (struct ct6_dsd *)ctx;
632 
633 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
634 			ctx1->fcp_cmnd_dma);
635 		list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
636 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
637 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
638 		mempool_free(ctx1, ha->ctx_mempool);
639 		ctx1 = NULL;
640 	}
641 
642 	CMD_SP(cmd) = NULL;
643 	qla2x00_rel_sp(sp->fcport->vha, sp);
644 }
645 
646 static void
647 qla2x00_sp_compl(void *data, void *ptr, int res)
648 {
649 	struct qla_hw_data *ha = (struct qla_hw_data *)data;
650 	srb_t *sp = (srb_t *)ptr;
651 	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
652 
653 	cmd->result = res;
654 
655 	if (atomic_read(&sp->ref_count) == 0) {
656 		ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3015,
657 		    "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
658 		    sp, GET_CMD_SP(sp));
659 		if (ql2xextended_error_logging & ql_dbg_io)
660 			BUG();
661 		return;
662 	}
663 	if (!atomic_dec_and_test(&sp->ref_count))
664 		return;
665 
666 	qla2x00_sp_free_dma(ha, sp);
667 	cmd->scsi_done(cmd);
668 }
669 
670 /* If we are SP1 here, we need to still take and release the host_lock as SP1
671  * does not have the changes necessary to avoid taking host->host_lock.
672  */
673 static int
674 qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
675 {
676 	scsi_qla_host_t *vha = shost_priv(host);
677 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
678 	struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
679 	struct qla_hw_data *ha = vha->hw;
680 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
681 	srb_t *sp;
682 	int rval;
683 
684 	if (ha->flags.eeh_busy) {
685 		if (ha->flags.pci_channel_io_perm_failure) {
686 			ql_dbg(ql_dbg_aer, vha, 0x9010,
687 			    "PCI Channel IO permanent failure, exiting "
688 			    "cmd=%p.\n", cmd);
689 			cmd->result = DID_NO_CONNECT << 16;
690 		} else {
691 			ql_dbg(ql_dbg_aer, vha, 0x9011,
692 			    "EEH_Busy, Requeuing the cmd=%p.\n", cmd);
693 			cmd->result = DID_REQUEUE << 16;
694 		}
695 		goto qc24_fail_command;
696 	}
697 
698 	rval = fc_remote_port_chkready(rport);
699 	if (rval) {
700 		cmd->result = rval;
701 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
702 		    "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
703 		    cmd, rval);
704 		goto qc24_fail_command;
705 	}
706 
707 	if (!vha->flags.difdix_supported &&
708 		scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
709 			ql_dbg(ql_dbg_io, vha, 0x3004,
710 			    "DIF Cap not reg, fail DIF capable cmd's:%p.\n",
711 			    cmd);
712 			cmd->result = DID_NO_CONNECT << 16;
713 			goto qc24_fail_command;
714 	}
715 
716 	if (!fcport) {
717 		cmd->result = DID_NO_CONNECT << 16;
718 		goto qc24_fail_command;
719 	}
720 
721 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
722 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
723 			atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
724 			ql_dbg(ql_dbg_io, vha, 0x3005,
725 			    "Returning DNC, fcport_state=%d loop_state=%d.\n",
726 			    atomic_read(&fcport->state),
727 			    atomic_read(&base_vha->loop_state));
728 			cmd->result = DID_NO_CONNECT << 16;
729 			goto qc24_fail_command;
730 		}
731 		goto qc24_target_busy;
732 	}
733 
734 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
735 	if (!sp) {
736 		set_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags);
737 		goto qc24_host_busy;
738 	}
739 
740 	sp->u.scmd.cmd = cmd;
741 	sp->type = SRB_SCSI_CMD;
742 	atomic_set(&sp->ref_count, 1);
743 	CMD_SP(cmd) = (void *)sp;
744 	sp->free = qla2x00_sp_free_dma;
745 	sp->done = qla2x00_sp_compl;
746 
747 	rval = ha->isp_ops->start_scsi(sp);
748 	if (rval != QLA_SUCCESS) {
749 		ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
750 		    "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
751 		set_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags);
752 		goto qc24_host_busy_free_sp;
753 	}
754 
755 	return 0;
756 
757 qc24_host_busy_free_sp:
758 	qla2x00_sp_free_dma(ha, sp);
759 
760 qc24_host_busy:
761 	return SCSI_MLQUEUE_HOST_BUSY;
762 
763 qc24_target_busy:
764 	return SCSI_MLQUEUE_TARGET_BUSY;
765 
766 qc24_fail_command:
767 	cmd->scsi_done(cmd);
768 
769 	return 0;
770 }
771 
772 /*
773  * qla2x00_eh_wait_on_command
774  *    Waits for the command to be returned by the Firmware for some
775  *    max time.
776  *
777  * Input:
778  *    cmd = Scsi Command to wait on.
779  *
780  * Return:
781  *    Not Found : 0
782  *    Found : 1
783  */
784 static int
785 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
786 {
787 #define ABORT_POLLING_PERIOD	1000
788 #define ABORT_WAIT_ITER		((10 * 1000) / (ABORT_POLLING_PERIOD))
789 	unsigned long wait_iter = ABORT_WAIT_ITER;
790 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
791 	struct qla_hw_data *ha = vha->hw;
792 	int ret = QLA_SUCCESS;
793 
794 	if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
795 		ql_dbg(ql_dbg_taskm, vha, 0x8005,
796 		    "Return:eh_wait.\n");
797 		return ret;
798 	}
799 
800 	while (CMD_SP(cmd) && wait_iter--) {
801 		msleep(ABORT_POLLING_PERIOD);
802 	}
803 	if (CMD_SP(cmd))
804 		ret = QLA_FUNCTION_FAILED;
805 
806 	return ret;
807 }
808 
809 /*
810  * qla2x00_wait_for_hba_online
811  *    Wait till the HBA is online after going through
812  *    <= MAX_RETRIES_OF_ISP_ABORT  or
813  *    finally HBA is disabled ie marked offline
814  *
815  * Input:
816  *     ha - pointer to host adapter structure
817  *
818  * Note:
819  *    Does context switching-Release SPIN_LOCK
820  *    (if any) before calling this routine.
821  *
822  * Return:
823  *    Success (Adapter is online) : 0
824  *    Failed  (Adapter is offline/disabled) : 1
825  */
826 int
827 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
828 {
829 	int		return_status;
830 	unsigned long	wait_online;
831 	struct qla_hw_data *ha = vha->hw;
832 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
833 
834 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
835 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
836 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
837 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
838 	    ha->dpc_active) && time_before(jiffies, wait_online)) {
839 
840 		msleep(1000);
841 	}
842 	if (base_vha->flags.online)
843 		return_status = QLA_SUCCESS;
844 	else
845 		return_status = QLA_FUNCTION_FAILED;
846 
847 	return (return_status);
848 }
849 
850 /*
851  * qla2x00_wait_for_reset_ready
852  *    Wait till the HBA is online after going through
853  *    <= MAX_RETRIES_OF_ISP_ABORT  or
854  *    finally HBA is disabled ie marked offline or flash
855  *    operations are in progress.
856  *
857  * Input:
858  *     ha - pointer to host adapter structure
859  *
860  * Note:
861  *    Does context switching-Release SPIN_LOCK
862  *    (if any) before calling this routine.
863  *
864  * Return:
865  *    Success (Adapter is online/no flash ops) : 0
866  *    Failed  (Adapter is offline/disabled/flash ops in progress) : 1
867  */
868 static int
869 qla2x00_wait_for_reset_ready(scsi_qla_host_t *vha)
870 {
871 	int		return_status;
872 	unsigned long	wait_online;
873 	struct qla_hw_data *ha = vha->hw;
874 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
875 
876 	wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
877 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
878 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
879 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
880 	    ha->optrom_state != QLA_SWAITING ||
881 	    ha->dpc_active) && time_before(jiffies, wait_online))
882 		msleep(1000);
883 
884 	if (base_vha->flags.online &&  ha->optrom_state == QLA_SWAITING)
885 		return_status = QLA_SUCCESS;
886 	else
887 		return_status = QLA_FUNCTION_FAILED;
888 
889 	ql_dbg(ql_dbg_taskm, vha, 0x8019,
890 	    "%s return status=%d.\n", __func__, return_status);
891 
892 	return return_status;
893 }
894 
895 int
896 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
897 {
898 	int		return_status;
899 	unsigned long	wait_reset;
900 	struct qla_hw_data *ha = vha->hw;
901 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
902 
903 	wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
904 	while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
905 	    test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
906 	    test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
907 	    ha->dpc_active) && time_before(jiffies, wait_reset)) {
908 
909 		msleep(1000);
910 
911 		if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
912 		    ha->flags.chip_reset_done)
913 			break;
914 	}
915 	if (ha->flags.chip_reset_done)
916 		return_status = QLA_SUCCESS;
917 	else
918 		return_status = QLA_FUNCTION_FAILED;
919 
920 	return return_status;
921 }
922 
923 static void
924 sp_get(struct srb *sp)
925 {
926 	atomic_inc(&sp->ref_count);
927 }
928 
929 /**************************************************************************
930 * qla2xxx_eh_abort
931 *
932 * Description:
933 *    The abort function will abort the specified command.
934 *
935 * Input:
936 *    cmd = Linux SCSI command packet to be aborted.
937 *
938 * Returns:
939 *    Either SUCCESS or FAILED.
940 *
941 * Note:
942 *    Only return FAILED if command not returned by firmware.
943 **************************************************************************/
944 static int
945 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
946 {
947 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
948 	srb_t *sp;
949 	int ret;
950 	unsigned int id, lun;
951 	unsigned long flags;
952 	int wait = 0;
953 	struct qla_hw_data *ha = vha->hw;
954 
955 	if (!CMD_SP(cmd))
956 		return SUCCESS;
957 
958 	ret = fc_block_scsi_eh(cmd);
959 	if (ret != 0)
960 		return ret;
961 	ret = SUCCESS;
962 
963 	id = cmd->device->id;
964 	lun = cmd->device->lun;
965 
966 	spin_lock_irqsave(&ha->hardware_lock, flags);
967 	sp = (srb_t *) CMD_SP(cmd);
968 	if (!sp) {
969 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
970 		return SUCCESS;
971 	}
972 
973 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
974 	    "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
975 	    vha->host_no, id, lun, sp, cmd);
976 
977 	/* Get a reference to the sp and drop the lock.*/
978 	sp_get(sp);
979 
980 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
981 	if (ha->isp_ops->abort_command(sp)) {
982 		ret = FAILED;
983 		ql_dbg(ql_dbg_taskm, vha, 0x8003,
984 		    "Abort command mbx failed cmd=%p.\n", cmd);
985 	} else {
986 		ql_dbg(ql_dbg_taskm, vha, 0x8004,
987 		    "Abort command mbx success cmd=%p.\n", cmd);
988 		wait = 1;
989 	}
990 
991 	spin_lock_irqsave(&ha->hardware_lock, flags);
992 	sp->done(ha, sp, 0);
993 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
994 
995 	/* Did the command return during mailbox execution? */
996 	if (ret == FAILED && !CMD_SP(cmd))
997 		ret = SUCCESS;
998 
999 	/* Wait for the command to be returned. */
1000 	if (wait) {
1001 		if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
1002 			ql_log(ql_log_warn, vha, 0x8006,
1003 			    "Abort handler timed out cmd=%p.\n", cmd);
1004 			ret = FAILED;
1005 		}
1006 	}
1007 
1008 	ql_log(ql_log_info, vha, 0x801c,
1009 	    "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
1010 	    vha->host_no, id, lun, wait, ret);
1011 
1012 	return ret;
1013 }
1014 
1015 int
1016 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
1017 	unsigned int l, enum nexus_wait_type type)
1018 {
1019 	int cnt, match, status;
1020 	unsigned long flags;
1021 	struct qla_hw_data *ha = vha->hw;
1022 	struct req_que *req;
1023 	srb_t *sp;
1024 	struct scsi_cmnd *cmd;
1025 
1026 	status = QLA_SUCCESS;
1027 
1028 	spin_lock_irqsave(&ha->hardware_lock, flags);
1029 	req = vha->req;
1030 	for (cnt = 1; status == QLA_SUCCESS &&
1031 		cnt < req->num_outstanding_cmds; cnt++) {
1032 		sp = req->outstanding_cmds[cnt];
1033 		if (!sp)
1034 			continue;
1035 		if (sp->type != SRB_SCSI_CMD)
1036 			continue;
1037 		if (vha->vp_idx != sp->fcport->vha->vp_idx)
1038 			continue;
1039 		match = 0;
1040 		cmd = GET_CMD_SP(sp);
1041 		switch (type) {
1042 		case WAIT_HOST:
1043 			match = 1;
1044 			break;
1045 		case WAIT_TARGET:
1046 			match = cmd->device->id == t;
1047 			break;
1048 		case WAIT_LUN:
1049 			match = (cmd->device->id == t &&
1050 				cmd->device->lun == l);
1051 			break;
1052 		}
1053 		if (!match)
1054 			continue;
1055 
1056 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1057 		status = qla2x00_eh_wait_on_command(cmd);
1058 		spin_lock_irqsave(&ha->hardware_lock, flags);
1059 	}
1060 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1061 
1062 	return status;
1063 }
1064 
1065 static char *reset_errors[] = {
1066 	"HBA not online",
1067 	"HBA not ready",
1068 	"Task management failed",
1069 	"Waiting for command completions",
1070 };
1071 
1072 static int
1073 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
1074     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
1075 {
1076 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1077 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1078 	int err;
1079 
1080 	if (!fcport) {
1081 		return FAILED;
1082 	}
1083 
1084 	err = fc_block_scsi_eh(cmd);
1085 	if (err != 0)
1086 		return err;
1087 
1088 	ql_log(ql_log_info, vha, 0x8009,
1089 	    "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
1090 	    cmd->device->id, cmd->device->lun, cmd);
1091 
1092 	err = 0;
1093 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1094 		ql_log(ql_log_warn, vha, 0x800a,
1095 		    "Wait for hba online failed for cmd=%p.\n", cmd);
1096 		goto eh_reset_failed;
1097 	}
1098 	err = 2;
1099 	if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
1100 		!= QLA_SUCCESS) {
1101 		ql_log(ql_log_warn, vha, 0x800c,
1102 		    "do_reset failed for cmd=%p.\n", cmd);
1103 		goto eh_reset_failed;
1104 	}
1105 	err = 3;
1106 	if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
1107 	    cmd->device->lun, type) != QLA_SUCCESS) {
1108 		ql_log(ql_log_warn, vha, 0x800d,
1109 		    "wait for pending cmds failed for cmd=%p.\n", cmd);
1110 		goto eh_reset_failed;
1111 	}
1112 
1113 	ql_log(ql_log_info, vha, 0x800e,
1114 	    "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
1115 	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
1116 
1117 	return SUCCESS;
1118 
1119 eh_reset_failed:
1120 	ql_log(ql_log_info, vha, 0x800f,
1121 	    "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
1122 	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
1123 	    cmd);
1124 	return FAILED;
1125 }
1126 
1127 static int
1128 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
1129 {
1130 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1131 	struct qla_hw_data *ha = vha->hw;
1132 
1133 	return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
1134 	    ha->isp_ops->lun_reset);
1135 }
1136 
1137 static int
1138 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
1139 {
1140 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1141 	struct qla_hw_data *ha = vha->hw;
1142 
1143 	return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
1144 	    ha->isp_ops->target_reset);
1145 }
1146 
1147 /**************************************************************************
1148 * qla2xxx_eh_bus_reset
1149 *
1150 * Description:
1151 *    The bus reset function will reset the bus and abort any executing
1152 *    commands.
1153 *
1154 * Input:
1155 *    cmd = Linux SCSI command packet of the command that cause the
1156 *          bus reset.
1157 *
1158 * Returns:
1159 *    SUCCESS/FAILURE (defined as macro in scsi.h).
1160 *
1161 **************************************************************************/
1162 static int
1163 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
1164 {
1165 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1166 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1167 	int ret = FAILED;
1168 	unsigned int id, lun;
1169 
1170 	id = cmd->device->id;
1171 	lun = cmd->device->lun;
1172 
1173 	if (!fcport) {
1174 		return ret;
1175 	}
1176 
1177 	ret = fc_block_scsi_eh(cmd);
1178 	if (ret != 0)
1179 		return ret;
1180 	ret = FAILED;
1181 
1182 	ql_log(ql_log_info, vha, 0x8012,
1183 	    "BUS RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1184 
1185 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1186 		ql_log(ql_log_fatal, vha, 0x8013,
1187 		    "Wait for hba online failed board disabled.\n");
1188 		goto eh_bus_reset_done;
1189 	}
1190 
1191 	if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
1192 		ret = SUCCESS;
1193 
1194 	if (ret == FAILED)
1195 		goto eh_bus_reset_done;
1196 
1197 	/* Flush outstanding commands. */
1198 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) !=
1199 	    QLA_SUCCESS) {
1200 		ql_log(ql_log_warn, vha, 0x8014,
1201 		    "Wait for pending commands failed.\n");
1202 		ret = FAILED;
1203 	}
1204 
1205 eh_bus_reset_done:
1206 	ql_log(ql_log_warn, vha, 0x802b,
1207 	    "BUS RESET %s nexus=%ld:%d:%d.\n",
1208 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1209 
1210 	return ret;
1211 }
1212 
1213 /**************************************************************************
1214 * qla2xxx_eh_host_reset
1215 *
1216 * Description:
1217 *    The reset function will reset the Adapter.
1218 *
1219 * Input:
1220 *      cmd = Linux SCSI command packet of the command that cause the
1221 *            adapter reset.
1222 *
1223 * Returns:
1224 *      Either SUCCESS or FAILED.
1225 *
1226 * Note:
1227 **************************************************************************/
1228 static int
1229 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
1230 {
1231 	scsi_qla_host_t *vha = shost_priv(cmd->device->host);
1232 	struct qla_hw_data *ha = vha->hw;
1233 	int ret = FAILED;
1234 	unsigned int id, lun;
1235 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1236 
1237 	id = cmd->device->id;
1238 	lun = cmd->device->lun;
1239 
1240 	ql_log(ql_log_info, vha, 0x8018,
1241 	    "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
1242 
1243 	if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
1244 		goto eh_host_reset_lock;
1245 
1246 	if (vha != base_vha) {
1247 		if (qla2x00_vp_abort_isp(vha))
1248 			goto eh_host_reset_lock;
1249 	} else {
1250 		if (IS_P3P_TYPE(vha->hw)) {
1251 			if (!qla82xx_fcoe_ctx_reset(vha)) {
1252 				/* Ctx reset success */
1253 				ret = SUCCESS;
1254 				goto eh_host_reset_lock;
1255 			}
1256 			/* fall thru if ctx reset failed */
1257 		}
1258 		if (ha->wq)
1259 			flush_workqueue(ha->wq);
1260 
1261 		set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1262 		if (ha->isp_ops->abort_isp(base_vha)) {
1263 			clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1264 			/* failed. schedule dpc to try */
1265 			set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1266 
1267 			if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
1268 				ql_log(ql_log_warn, vha, 0x802a,
1269 				    "wait for hba online failed.\n");
1270 				goto eh_host_reset_lock;
1271 			}
1272 		}
1273 		clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1274 	}
1275 
1276 	/* Waiting for command to be returned to OS.*/
1277 	if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST) ==
1278 		QLA_SUCCESS)
1279 		ret = SUCCESS;
1280 
1281 eh_host_reset_lock:
1282 	ql_log(ql_log_info, vha, 0x8017,
1283 	    "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
1284 	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
1285 
1286 	return ret;
1287 }
1288 
1289 /*
1290 * qla2x00_loop_reset
1291 *      Issue loop reset.
1292 *
1293 * Input:
1294 *      ha = adapter block pointer.
1295 *
1296 * Returns:
1297 *      0 = success
1298 */
1299 int
1300 qla2x00_loop_reset(scsi_qla_host_t *vha)
1301 {
1302 	int ret;
1303 	struct fc_port *fcport;
1304 	struct qla_hw_data *ha = vha->hw;
1305 
1306 	if (IS_QLAFX00(ha)) {
1307 		return qlafx00_loop_reset(vha);
1308 	}
1309 
1310 	if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
1311 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1312 			if (fcport->port_type != FCT_TARGET)
1313 				continue;
1314 
1315 			ret = ha->isp_ops->target_reset(fcport, 0, 0);
1316 			if (ret != QLA_SUCCESS) {
1317 				ql_dbg(ql_dbg_taskm, vha, 0x802c,
1318 				    "Bus Reset failed: Reset=%d "
1319 				    "d_id=%x.\n", ret, fcport->d_id.b24);
1320 			}
1321 		}
1322 	}
1323 
1324 
1325 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
1326 		atomic_set(&vha->loop_state, LOOP_DOWN);
1327 		atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1328 		qla2x00_mark_all_devices_lost(vha, 0);
1329 		ret = qla2x00_full_login_lip(vha);
1330 		if (ret != QLA_SUCCESS) {
1331 			ql_dbg(ql_dbg_taskm, vha, 0x802d,
1332 			    "full_login_lip=%d.\n", ret);
1333 		}
1334 	}
1335 
1336 	if (ha->flags.enable_lip_reset) {
1337 		ret = qla2x00_lip_reset(vha);
1338 		if (ret != QLA_SUCCESS)
1339 			ql_dbg(ql_dbg_taskm, vha, 0x802e,
1340 			    "lip_reset failed (%d).\n", ret);
1341 	}
1342 
1343 	/* Issue marker command only when we are going to start the I/O */
1344 	vha->marker_needed = 1;
1345 
1346 	return QLA_SUCCESS;
1347 }
1348 
1349 void
1350 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1351 {
1352 	int que, cnt;
1353 	unsigned long flags;
1354 	srb_t *sp;
1355 	struct qla_hw_data *ha = vha->hw;
1356 	struct req_que *req;
1357 
1358 	spin_lock_irqsave(&ha->hardware_lock, flags);
1359 	for (que = 0; que < ha->max_req_queues; que++) {
1360 		req = ha->req_q_map[que];
1361 		if (!req)
1362 			continue;
1363 		if (!req->outstanding_cmds)
1364 			continue;
1365 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
1366 			sp = req->outstanding_cmds[cnt];
1367 			if (sp) {
1368 				req->outstanding_cmds[cnt] = NULL;
1369 				sp->done(vha, sp, res);
1370 			}
1371 		}
1372 	}
1373 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1374 }
1375 
1376 static int
1377 qla2xxx_slave_alloc(struct scsi_device *sdev)
1378 {
1379 	struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1380 
1381 	if (!rport || fc_remote_port_chkready(rport))
1382 		return -ENXIO;
1383 
1384 	sdev->hostdata = *(fc_port_t **)rport->dd_data;
1385 
1386 	return 0;
1387 }
1388 
1389 static int
1390 qla2xxx_slave_configure(struct scsi_device *sdev)
1391 {
1392 	scsi_qla_host_t *vha = shost_priv(sdev->host);
1393 	struct req_que *req = vha->req;
1394 
1395 	if (IS_T10_PI_CAPABLE(vha->hw))
1396 		blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
1397 
1398 	if (sdev->tagged_supported)
1399 		scsi_activate_tcq(sdev, req->max_q_depth);
1400 	else
1401 		scsi_deactivate_tcq(sdev, req->max_q_depth);
1402 	return 0;
1403 }
1404 
1405 static void
1406 qla2xxx_slave_destroy(struct scsi_device *sdev)
1407 {
1408 	sdev->hostdata = NULL;
1409 }
1410 
1411 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1412 {
1413 	fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1414 
1415 	if (!scsi_track_queue_full(sdev, qdepth))
1416 		return;
1417 
1418 	ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
1419 	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
1420 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1421 }
1422 
1423 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1424 {
1425 	fc_port_t *fcport = sdev->hostdata;
1426 	struct scsi_qla_host *vha = fcport->vha;
1427 	struct req_que *req = NULL;
1428 
1429 	req = vha->req;
1430 	if (!req)
1431 		return;
1432 
1433 	if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1434 		return;
1435 
1436 	if (sdev->ordered_tags)
1437 		scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1438 	else
1439 		scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1440 
1441 	ql_dbg(ql_dbg_io, vha, 0x302a,
1442 	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
1443 	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
1444 }
1445 
1446 static int
1447 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1448 {
1449 	switch (reason) {
1450 	case SCSI_QDEPTH_DEFAULT:
1451 		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1452 		break;
1453 	case SCSI_QDEPTH_QFULL:
1454 		qla2x00_handle_queue_full(sdev, qdepth);
1455 		break;
1456 	case SCSI_QDEPTH_RAMP_UP:
1457 		qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1458 		break;
1459 	default:
1460 		return -EOPNOTSUPP;
1461 	}
1462 
1463 	return sdev->queue_depth;
1464 }
1465 
1466 static int
1467 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1468 {
1469 	if (sdev->tagged_supported) {
1470 		scsi_set_tag_type(sdev, tag_type);
1471 		if (tag_type)
1472 			scsi_activate_tcq(sdev, sdev->queue_depth);
1473 		else
1474 			scsi_deactivate_tcq(sdev, sdev->queue_depth);
1475 	} else
1476 		tag_type = 0;
1477 
1478 	return tag_type;
1479 }
1480 
1481 static void
1482 qla2x00_host_ramp_down_queuedepth(scsi_qla_host_t *vha)
1483 {
1484 	scsi_qla_host_t *vp;
1485 	struct Scsi_Host *shost;
1486 	struct scsi_device *sdev;
1487 	struct qla_hw_data *ha = vha->hw;
1488 	unsigned long flags;
1489 
1490 	ha->host_last_rampdown_time = jiffies;
1491 
1492 	if (ha->cfg_lun_q_depth <= vha->host->cmd_per_lun)
1493 		return;
1494 
1495 	if ((ha->cfg_lun_q_depth / 2) < vha->host->cmd_per_lun)
1496 		ha->cfg_lun_q_depth = vha->host->cmd_per_lun;
1497 	else
1498 		ha->cfg_lun_q_depth = ha->cfg_lun_q_depth / 2;
1499 
1500 	/*
1501 	 * Geometrically ramp down the queue depth for all devices on this
1502 	 * adapter
1503 	 */
1504 	spin_lock_irqsave(&ha->vport_slock, flags);
1505 	list_for_each_entry(vp, &ha->vp_list, list) {
1506 		shost = vp->host;
1507 		shost_for_each_device(sdev, shost) {
1508 			if (sdev->queue_depth > shost->cmd_per_lun) {
1509 				if (sdev->queue_depth < ha->cfg_lun_q_depth)
1510 					continue;
1511 				ql_dbg(ql_dbg_io, vp, 0x3031,
1512 				    "%ld:%d:%d: Ramping down queue depth to %d",
1513 				    vp->host_no, sdev->id, sdev->lun,
1514 				    ha->cfg_lun_q_depth);
1515 				qla2x00_change_queue_depth(sdev,
1516 				    ha->cfg_lun_q_depth, SCSI_QDEPTH_DEFAULT);
1517 			}
1518 		}
1519 	}
1520 	spin_unlock_irqrestore(&ha->vport_slock, flags);
1521 
1522 	return;
1523 }
1524 
1525 static void
1526 qla2x00_host_ramp_up_queuedepth(scsi_qla_host_t *vha)
1527 {
1528 	scsi_qla_host_t *vp;
1529 	struct Scsi_Host *shost;
1530 	struct scsi_device *sdev;
1531 	struct qla_hw_data *ha = vha->hw;
1532 	unsigned long flags;
1533 
1534 	ha->host_last_rampup_time = jiffies;
1535 	ha->cfg_lun_q_depth++;
1536 
1537 	/*
1538 	 * Linearly ramp up the queue depth for all devices on this
1539 	 * adapter
1540 	 */
1541 	spin_lock_irqsave(&ha->vport_slock, flags);
1542 	list_for_each_entry(vp, &ha->vp_list, list) {
1543 		shost = vp->host;
1544 		shost_for_each_device(sdev, shost) {
1545 			if (sdev->queue_depth > ha->cfg_lun_q_depth)
1546 				continue;
1547 			qla2x00_change_queue_depth(sdev, ha->cfg_lun_q_depth,
1548 			    SCSI_QDEPTH_RAMP_UP);
1549 		}
1550 	}
1551 	spin_unlock_irqrestore(&ha->vport_slock, flags);
1552 
1553 	return;
1554 }
1555 
1556 /**
1557  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1558  * @ha: HA context
1559  *
1560  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1561  * supported addressing method.
1562  */
1563 static void
1564 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1565 {
1566 	/* Assume a 32bit DMA mask. */
1567 	ha->flags.enable_64bit_addressing = 0;
1568 
1569 	if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1570 		/* Any upper-dword bits set? */
1571 		if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1572 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1573 			/* Ok, a 64bit DMA mask is applicable. */
1574 			ha->flags.enable_64bit_addressing = 1;
1575 			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1576 			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1577 			return;
1578 		}
1579 	}
1580 
1581 	dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1582 	pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1583 }
1584 
1585 static void
1586 qla2x00_enable_intrs(struct qla_hw_data *ha)
1587 {
1588 	unsigned long flags = 0;
1589 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1590 
1591 	spin_lock_irqsave(&ha->hardware_lock, flags);
1592 	ha->interrupts_on = 1;
1593 	/* enable risc and host interrupts */
1594 	WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1595 	RD_REG_WORD(&reg->ictrl);
1596 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1597 
1598 }
1599 
1600 static void
1601 qla2x00_disable_intrs(struct qla_hw_data *ha)
1602 {
1603 	unsigned long flags = 0;
1604 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1605 
1606 	spin_lock_irqsave(&ha->hardware_lock, flags);
1607 	ha->interrupts_on = 0;
1608 	/* disable risc and host interrupts */
1609 	WRT_REG_WORD(&reg->ictrl, 0);
1610 	RD_REG_WORD(&reg->ictrl);
1611 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1612 }
1613 
1614 static void
1615 qla24xx_enable_intrs(struct qla_hw_data *ha)
1616 {
1617 	unsigned long flags = 0;
1618 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1619 
1620 	spin_lock_irqsave(&ha->hardware_lock, flags);
1621 	ha->interrupts_on = 1;
1622 	WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1623 	RD_REG_DWORD(&reg->ictrl);
1624 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1625 }
1626 
1627 static void
1628 qla24xx_disable_intrs(struct qla_hw_data *ha)
1629 {
1630 	unsigned long flags = 0;
1631 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1632 
1633 	if (IS_NOPOLLING_TYPE(ha))
1634 		return;
1635 	spin_lock_irqsave(&ha->hardware_lock, flags);
1636 	ha->interrupts_on = 0;
1637 	WRT_REG_DWORD(&reg->ictrl, 0);
1638 	RD_REG_DWORD(&reg->ictrl);
1639 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1640 }
1641 
1642 static int
1643 qla2x00_iospace_config(struct qla_hw_data *ha)
1644 {
1645 	resource_size_t pio;
1646 	uint16_t msix;
1647 	int cpus;
1648 
1649 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1650 	    QLA2XXX_DRIVER_NAME)) {
1651 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
1652 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1653 		    pci_name(ha->pdev));
1654 		goto iospace_error_exit;
1655 	}
1656 	if (!(ha->bars & 1))
1657 		goto skip_pio;
1658 
1659 	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
1660 	pio = pci_resource_start(ha->pdev, 0);
1661 	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1662 		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1663 			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
1664 			    "Invalid pci I/O region size (%s).\n",
1665 			    pci_name(ha->pdev));
1666 			pio = 0;
1667 		}
1668 	} else {
1669 		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
1670 		    "Region #0 no a PIO resource (%s).\n",
1671 		    pci_name(ha->pdev));
1672 		pio = 0;
1673 	}
1674 	ha->pio_address = pio;
1675 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
1676 	    "PIO address=%llu.\n",
1677 	    (unsigned long long)ha->pio_address);
1678 
1679 skip_pio:
1680 	/* Use MMIO operations for all accesses. */
1681 	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1682 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
1683 		    "Region #1 not an MMIO resource (%s), aborting.\n",
1684 		    pci_name(ha->pdev));
1685 		goto iospace_error_exit;
1686 	}
1687 	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1688 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
1689 		    "Invalid PCI mem region size (%s), aborting.\n",
1690 		    pci_name(ha->pdev));
1691 		goto iospace_error_exit;
1692 	}
1693 
1694 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1695 	if (!ha->iobase) {
1696 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
1697 		    "Cannot remap MMIO (%s), aborting.\n",
1698 		    pci_name(ha->pdev));
1699 		goto iospace_error_exit;
1700 	}
1701 
1702 	/* Determine queue resources */
1703 	ha->max_req_queues = ha->max_rsp_queues = 1;
1704 	if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
1705 		(ql2xmaxqueues > 1 && ql2xmultique_tag) ||
1706 		(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1707 		goto mqiobase_exit;
1708 
1709 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1710 			pci_resource_len(ha->pdev, 3));
1711 	if (ha->mqiobase) {
1712 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
1713 		    "MQIO Base=%p.\n", ha->mqiobase);
1714 		/* Read MSIX vector size of the board */
1715 		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1716 		ha->msix_count = msix;
1717 		/* Max queues are bounded by available msix vectors */
1718 		/* queue 0 uses two msix vectors */
1719 		if (ql2xmultique_tag) {
1720 			cpus = num_online_cpus();
1721 			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1722 				(cpus + 1) : (ha->msix_count - 1);
1723 			ha->max_req_queues = 2;
1724 		} else if (ql2xmaxqueues > 1) {
1725 			ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1726 			    QLA_MQ_SIZE : ql2xmaxqueues;
1727 			ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
1728 			    "QoS mode set, max no of request queues:%d.\n",
1729 			    ha->max_req_queues);
1730 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
1731 			    "QoS mode set, max no of request queues:%d.\n",
1732 			    ha->max_req_queues);
1733 		}
1734 		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
1735 		    "MSI-X vector count: %d.\n", msix);
1736 	} else
1737 		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
1738 		    "BAR 3 not enabled.\n");
1739 
1740 mqiobase_exit:
1741 	ha->msix_count = ha->max_rsp_queues + 1;
1742 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
1743 	    "MSIX Count:%d.\n", ha->msix_count);
1744 	return (0);
1745 
1746 iospace_error_exit:
1747 	return (-ENOMEM);
1748 }
1749 
1750 
1751 static int
1752 qla83xx_iospace_config(struct qla_hw_data *ha)
1753 {
1754 	uint16_t msix;
1755 	int cpus;
1756 
1757 	if (pci_request_selected_regions(ha->pdev, ha->bars,
1758 	    QLA2XXX_DRIVER_NAME)) {
1759 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0117,
1760 		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
1761 		    pci_name(ha->pdev));
1762 
1763 		goto iospace_error_exit;
1764 	}
1765 
1766 	/* Use MMIO operations for all accesses. */
1767 	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
1768 		ql_log_pci(ql_log_warn, ha->pdev, 0x0118,
1769 		    "Invalid pci I/O region size (%s).\n",
1770 		    pci_name(ha->pdev));
1771 		goto iospace_error_exit;
1772 	}
1773 	if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1774 		ql_log_pci(ql_log_warn, ha->pdev, 0x0119,
1775 		    "Invalid PCI mem region size (%s), aborting\n",
1776 			pci_name(ha->pdev));
1777 		goto iospace_error_exit;
1778 	}
1779 
1780 	ha->iobase = ioremap(pci_resource_start(ha->pdev, 0), MIN_IOBASE_LEN);
1781 	if (!ha->iobase) {
1782 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011a,
1783 		    "Cannot remap MMIO (%s), aborting.\n",
1784 		    pci_name(ha->pdev));
1785 		goto iospace_error_exit;
1786 	}
1787 
1788 	/* 64bit PCI BAR - BAR2 will correspoond to region 4 */
1789 	/* 83XX 26XX always use MQ type access for queues
1790 	 * - mbar 2, a.k.a region 4 */
1791 	ha->max_req_queues = ha->max_rsp_queues = 1;
1792 	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 4),
1793 			pci_resource_len(ha->pdev, 4));
1794 
1795 	if (!ha->mqiobase) {
1796 		ql_log_pci(ql_log_fatal, ha->pdev, 0x011d,
1797 		    "BAR2/region4 not enabled\n");
1798 		goto mqiobase_exit;
1799 	}
1800 
1801 	ha->msixbase = ioremap(pci_resource_start(ha->pdev, 2),
1802 			pci_resource_len(ha->pdev, 2));
1803 	if (ha->msixbase) {
1804 		/* Read MSIX vector size of the board */
1805 		pci_read_config_word(ha->pdev,
1806 		    QLA_83XX_PCI_MSIX_CONTROL, &msix);
1807 		ha->msix_count = msix;
1808 		/* Max queues are bounded by available msix vectors */
1809 		/* queue 0 uses two msix vectors */
1810 		if (ql2xmultique_tag) {
1811 			cpus = num_online_cpus();
1812 			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1813 				(cpus + 1) : (ha->msix_count - 1);
1814 			ha->max_req_queues = 2;
1815 		} else if (ql2xmaxqueues > 1) {
1816 			ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1817 						QLA_MQ_SIZE : ql2xmaxqueues;
1818 			ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc00c,
1819 			    "QoS mode set, max no of request queues:%d.\n",
1820 			    ha->max_req_queues);
1821 			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
1822 			    "QoS mode set, max no of request queues:%d.\n",
1823 			    ha->max_req_queues);
1824 		}
1825 		ql_log_pci(ql_log_info, ha->pdev, 0x011c,
1826 		    "MSI-X vector count: %d.\n", msix);
1827 	} else
1828 		ql_log_pci(ql_log_info, ha->pdev, 0x011e,
1829 		    "BAR 1 not enabled.\n");
1830 
1831 mqiobase_exit:
1832 	ha->msix_count = ha->max_rsp_queues + 1;
1833 
1834 	qlt_83xx_iospace_config(ha);
1835 
1836 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011f,
1837 	    "MSIX Count:%d.\n", ha->msix_count);
1838 	return 0;
1839 
1840 iospace_error_exit:
1841 	return -ENOMEM;
1842 }
1843 
1844 static struct isp_operations qla2100_isp_ops = {
1845 	.pci_config		= qla2100_pci_config,
1846 	.reset_chip		= qla2x00_reset_chip,
1847 	.chip_diag		= qla2x00_chip_diag,
1848 	.config_rings		= qla2x00_config_rings,
1849 	.reset_adapter		= qla2x00_reset_adapter,
1850 	.nvram_config		= qla2x00_nvram_config,
1851 	.update_fw_options	= qla2x00_update_fw_options,
1852 	.load_risc		= qla2x00_load_risc,
1853 	.pci_info_str		= qla2x00_pci_info_str,
1854 	.fw_version_str		= qla2x00_fw_version_str,
1855 	.intr_handler		= qla2100_intr_handler,
1856 	.enable_intrs		= qla2x00_enable_intrs,
1857 	.disable_intrs		= qla2x00_disable_intrs,
1858 	.abort_command		= qla2x00_abort_command,
1859 	.target_reset		= qla2x00_abort_target,
1860 	.lun_reset		= qla2x00_lun_reset,
1861 	.fabric_login		= qla2x00_login_fabric,
1862 	.fabric_logout		= qla2x00_fabric_logout,
1863 	.calc_req_entries	= qla2x00_calc_iocbs_32,
1864 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
1865 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
1866 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
1867 	.read_nvram		= qla2x00_read_nvram_data,
1868 	.write_nvram		= qla2x00_write_nvram_data,
1869 	.fw_dump		= qla2100_fw_dump,
1870 	.beacon_on		= NULL,
1871 	.beacon_off		= NULL,
1872 	.beacon_blink		= NULL,
1873 	.read_optrom		= qla2x00_read_optrom_data,
1874 	.write_optrom		= qla2x00_write_optrom_data,
1875 	.get_flash_version	= qla2x00_get_flash_version,
1876 	.start_scsi		= qla2x00_start_scsi,
1877 	.abort_isp		= qla2x00_abort_isp,
1878 	.iospace_config     	= qla2x00_iospace_config,
1879 	.initialize_adapter	= qla2x00_initialize_adapter,
1880 };
1881 
1882 static struct isp_operations qla2300_isp_ops = {
1883 	.pci_config		= qla2300_pci_config,
1884 	.reset_chip		= qla2x00_reset_chip,
1885 	.chip_diag		= qla2x00_chip_diag,
1886 	.config_rings		= qla2x00_config_rings,
1887 	.reset_adapter		= qla2x00_reset_adapter,
1888 	.nvram_config		= qla2x00_nvram_config,
1889 	.update_fw_options	= qla2x00_update_fw_options,
1890 	.load_risc		= qla2x00_load_risc,
1891 	.pci_info_str		= qla2x00_pci_info_str,
1892 	.fw_version_str		= qla2x00_fw_version_str,
1893 	.intr_handler		= qla2300_intr_handler,
1894 	.enable_intrs		= qla2x00_enable_intrs,
1895 	.disable_intrs		= qla2x00_disable_intrs,
1896 	.abort_command		= qla2x00_abort_command,
1897 	.target_reset		= qla2x00_abort_target,
1898 	.lun_reset		= qla2x00_lun_reset,
1899 	.fabric_login		= qla2x00_login_fabric,
1900 	.fabric_logout		= qla2x00_fabric_logout,
1901 	.calc_req_entries	= qla2x00_calc_iocbs_32,
1902 	.build_iocbs		= qla2x00_build_scsi_iocbs_32,
1903 	.prep_ms_iocb		= qla2x00_prep_ms_iocb,
1904 	.prep_ms_fdmi_iocb	= qla2x00_prep_ms_fdmi_iocb,
1905 	.read_nvram		= qla2x00_read_nvram_data,
1906 	.write_nvram		= qla2x00_write_nvram_data,
1907 	.fw_dump		= qla2300_fw_dump,
1908 	.beacon_on		= qla2x00_beacon_on,
1909 	.beacon_off		= qla2x00_beacon_off,
1910 	.beacon_blink		= qla2x00_beacon_blink,
1911 	.read_optrom		= qla2x00_read_optrom_data,
1912 	.write_optrom		= qla2x00_write_optrom_data,
1913 	.get_flash_version	= qla2x00_get_flash_version,
1914 	.start_scsi		= qla2x00_start_scsi,
1915 	.abort_isp		= qla2x00_abort_isp,
1916 	.iospace_config		= qla2x00_iospace_config,
1917 	.initialize_adapter	= qla2x00_initialize_adapter,
1918 };
1919 
1920 static struct isp_operations qla24xx_isp_ops = {
1921 	.pci_config		= qla24xx_pci_config,
1922 	.reset_chip		= qla24xx_reset_chip,
1923 	.chip_diag		= qla24xx_chip_diag,
1924 	.config_rings		= qla24xx_config_rings,
1925 	.reset_adapter		= qla24xx_reset_adapter,
1926 	.nvram_config		= qla24xx_nvram_config,
1927 	.update_fw_options	= qla24xx_update_fw_options,
1928 	.load_risc		= qla24xx_load_risc,
1929 	.pci_info_str		= qla24xx_pci_info_str,
1930 	.fw_version_str		= qla24xx_fw_version_str,
1931 	.intr_handler		= qla24xx_intr_handler,
1932 	.enable_intrs		= qla24xx_enable_intrs,
1933 	.disable_intrs		= qla24xx_disable_intrs,
1934 	.abort_command		= qla24xx_abort_command,
1935 	.target_reset		= qla24xx_abort_target,
1936 	.lun_reset		= qla24xx_lun_reset,
1937 	.fabric_login		= qla24xx_login_fabric,
1938 	.fabric_logout		= qla24xx_fabric_logout,
1939 	.calc_req_entries	= NULL,
1940 	.build_iocbs		= NULL,
1941 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
1942 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
1943 	.read_nvram		= qla24xx_read_nvram_data,
1944 	.write_nvram		= qla24xx_write_nvram_data,
1945 	.fw_dump		= qla24xx_fw_dump,
1946 	.beacon_on		= qla24xx_beacon_on,
1947 	.beacon_off		= qla24xx_beacon_off,
1948 	.beacon_blink		= qla24xx_beacon_blink,
1949 	.read_optrom		= qla24xx_read_optrom_data,
1950 	.write_optrom		= qla24xx_write_optrom_data,
1951 	.get_flash_version	= qla24xx_get_flash_version,
1952 	.start_scsi		= qla24xx_start_scsi,
1953 	.abort_isp		= qla2x00_abort_isp,
1954 	.iospace_config		= qla2x00_iospace_config,
1955 	.initialize_adapter	= qla2x00_initialize_adapter,
1956 };
1957 
1958 static struct isp_operations qla25xx_isp_ops = {
1959 	.pci_config		= qla25xx_pci_config,
1960 	.reset_chip		= qla24xx_reset_chip,
1961 	.chip_diag		= qla24xx_chip_diag,
1962 	.config_rings		= qla24xx_config_rings,
1963 	.reset_adapter		= qla24xx_reset_adapter,
1964 	.nvram_config		= qla24xx_nvram_config,
1965 	.update_fw_options	= qla24xx_update_fw_options,
1966 	.load_risc		= qla24xx_load_risc,
1967 	.pci_info_str		= qla24xx_pci_info_str,
1968 	.fw_version_str		= qla24xx_fw_version_str,
1969 	.intr_handler		= qla24xx_intr_handler,
1970 	.enable_intrs		= qla24xx_enable_intrs,
1971 	.disable_intrs		= qla24xx_disable_intrs,
1972 	.abort_command		= qla24xx_abort_command,
1973 	.target_reset		= qla24xx_abort_target,
1974 	.lun_reset		= qla24xx_lun_reset,
1975 	.fabric_login		= qla24xx_login_fabric,
1976 	.fabric_logout		= qla24xx_fabric_logout,
1977 	.calc_req_entries	= NULL,
1978 	.build_iocbs		= NULL,
1979 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
1980 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
1981 	.read_nvram		= qla25xx_read_nvram_data,
1982 	.write_nvram		= qla25xx_write_nvram_data,
1983 	.fw_dump		= qla25xx_fw_dump,
1984 	.beacon_on		= qla24xx_beacon_on,
1985 	.beacon_off		= qla24xx_beacon_off,
1986 	.beacon_blink		= qla24xx_beacon_blink,
1987 	.read_optrom		= qla25xx_read_optrom_data,
1988 	.write_optrom		= qla24xx_write_optrom_data,
1989 	.get_flash_version	= qla24xx_get_flash_version,
1990 	.start_scsi		= qla24xx_dif_start_scsi,
1991 	.abort_isp		= qla2x00_abort_isp,
1992 	.iospace_config		= qla2x00_iospace_config,
1993 	.initialize_adapter	= qla2x00_initialize_adapter,
1994 };
1995 
1996 static struct isp_operations qla81xx_isp_ops = {
1997 	.pci_config		= qla25xx_pci_config,
1998 	.reset_chip		= qla24xx_reset_chip,
1999 	.chip_diag		= qla24xx_chip_diag,
2000 	.config_rings		= qla24xx_config_rings,
2001 	.reset_adapter		= qla24xx_reset_adapter,
2002 	.nvram_config		= qla81xx_nvram_config,
2003 	.update_fw_options	= qla81xx_update_fw_options,
2004 	.load_risc		= qla81xx_load_risc,
2005 	.pci_info_str		= qla24xx_pci_info_str,
2006 	.fw_version_str		= qla24xx_fw_version_str,
2007 	.intr_handler		= qla24xx_intr_handler,
2008 	.enable_intrs		= qla24xx_enable_intrs,
2009 	.disable_intrs		= qla24xx_disable_intrs,
2010 	.abort_command		= qla24xx_abort_command,
2011 	.target_reset		= qla24xx_abort_target,
2012 	.lun_reset		= qla24xx_lun_reset,
2013 	.fabric_login		= qla24xx_login_fabric,
2014 	.fabric_logout		= qla24xx_fabric_logout,
2015 	.calc_req_entries	= NULL,
2016 	.build_iocbs		= NULL,
2017 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2018 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2019 	.read_nvram		= NULL,
2020 	.write_nvram		= NULL,
2021 	.fw_dump		= qla81xx_fw_dump,
2022 	.beacon_on		= qla24xx_beacon_on,
2023 	.beacon_off		= qla24xx_beacon_off,
2024 	.beacon_blink		= qla83xx_beacon_blink,
2025 	.read_optrom		= qla25xx_read_optrom_data,
2026 	.write_optrom		= qla24xx_write_optrom_data,
2027 	.get_flash_version	= qla24xx_get_flash_version,
2028 	.start_scsi		= qla24xx_dif_start_scsi,
2029 	.abort_isp		= qla2x00_abort_isp,
2030 	.iospace_config		= qla2x00_iospace_config,
2031 	.initialize_adapter	= qla2x00_initialize_adapter,
2032 };
2033 
2034 static struct isp_operations qla82xx_isp_ops = {
2035 	.pci_config		= qla82xx_pci_config,
2036 	.reset_chip		= qla82xx_reset_chip,
2037 	.chip_diag		= qla24xx_chip_diag,
2038 	.config_rings		= qla82xx_config_rings,
2039 	.reset_adapter		= qla24xx_reset_adapter,
2040 	.nvram_config		= qla81xx_nvram_config,
2041 	.update_fw_options	= qla24xx_update_fw_options,
2042 	.load_risc		= qla82xx_load_risc,
2043 	.pci_info_str		= qla24xx_pci_info_str,
2044 	.fw_version_str		= qla24xx_fw_version_str,
2045 	.intr_handler		= qla82xx_intr_handler,
2046 	.enable_intrs		= qla82xx_enable_intrs,
2047 	.disable_intrs		= qla82xx_disable_intrs,
2048 	.abort_command		= qla24xx_abort_command,
2049 	.target_reset		= qla24xx_abort_target,
2050 	.lun_reset		= qla24xx_lun_reset,
2051 	.fabric_login		= qla24xx_login_fabric,
2052 	.fabric_logout		= qla24xx_fabric_logout,
2053 	.calc_req_entries	= NULL,
2054 	.build_iocbs		= NULL,
2055 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2056 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2057 	.read_nvram		= qla24xx_read_nvram_data,
2058 	.write_nvram		= qla24xx_write_nvram_data,
2059 	.fw_dump		= qla24xx_fw_dump,
2060 	.beacon_on		= qla82xx_beacon_on,
2061 	.beacon_off		= qla82xx_beacon_off,
2062 	.beacon_blink		= NULL,
2063 	.read_optrom		= qla82xx_read_optrom_data,
2064 	.write_optrom		= qla82xx_write_optrom_data,
2065 	.get_flash_version	= qla82xx_get_flash_version,
2066 	.start_scsi             = qla82xx_start_scsi,
2067 	.abort_isp		= qla82xx_abort_isp,
2068 	.iospace_config     	= qla82xx_iospace_config,
2069 	.initialize_adapter	= qla2x00_initialize_adapter,
2070 };
2071 
2072 static struct isp_operations qla8044_isp_ops = {
2073 	.pci_config		= qla82xx_pci_config,
2074 	.reset_chip		= qla82xx_reset_chip,
2075 	.chip_diag		= qla24xx_chip_diag,
2076 	.config_rings		= qla82xx_config_rings,
2077 	.reset_adapter		= qla24xx_reset_adapter,
2078 	.nvram_config		= qla81xx_nvram_config,
2079 	.update_fw_options	= qla24xx_update_fw_options,
2080 	.load_risc		= qla82xx_load_risc,
2081 	.pci_info_str		= qla24xx_pci_info_str,
2082 	.fw_version_str		= qla24xx_fw_version_str,
2083 	.intr_handler		= qla8044_intr_handler,
2084 	.enable_intrs		= qla82xx_enable_intrs,
2085 	.disable_intrs		= qla82xx_disable_intrs,
2086 	.abort_command		= qla24xx_abort_command,
2087 	.target_reset		= qla24xx_abort_target,
2088 	.lun_reset		= qla24xx_lun_reset,
2089 	.fabric_login		= qla24xx_login_fabric,
2090 	.fabric_logout		= qla24xx_fabric_logout,
2091 	.calc_req_entries	= NULL,
2092 	.build_iocbs		= NULL,
2093 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2094 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2095 	.read_nvram		= NULL,
2096 	.write_nvram		= NULL,
2097 	.fw_dump		= qla24xx_fw_dump,
2098 	.beacon_on		= qla82xx_beacon_on,
2099 	.beacon_off		= qla82xx_beacon_off,
2100 	.beacon_blink		= NULL,
2101 	.read_optrom		= qla82xx_read_optrom_data,
2102 	.write_optrom		= qla8044_write_optrom_data,
2103 	.get_flash_version	= qla82xx_get_flash_version,
2104 	.start_scsi             = qla82xx_start_scsi,
2105 	.abort_isp		= qla8044_abort_isp,
2106 	.iospace_config		= qla82xx_iospace_config,
2107 	.initialize_adapter	= qla2x00_initialize_adapter,
2108 };
2109 
2110 static struct isp_operations qla83xx_isp_ops = {
2111 	.pci_config		= qla25xx_pci_config,
2112 	.reset_chip		= qla24xx_reset_chip,
2113 	.chip_diag		= qla24xx_chip_diag,
2114 	.config_rings		= qla24xx_config_rings,
2115 	.reset_adapter		= qla24xx_reset_adapter,
2116 	.nvram_config		= qla81xx_nvram_config,
2117 	.update_fw_options	= qla81xx_update_fw_options,
2118 	.load_risc		= qla81xx_load_risc,
2119 	.pci_info_str		= qla24xx_pci_info_str,
2120 	.fw_version_str		= qla24xx_fw_version_str,
2121 	.intr_handler		= qla24xx_intr_handler,
2122 	.enable_intrs		= qla24xx_enable_intrs,
2123 	.disable_intrs		= qla24xx_disable_intrs,
2124 	.abort_command		= qla24xx_abort_command,
2125 	.target_reset		= qla24xx_abort_target,
2126 	.lun_reset		= qla24xx_lun_reset,
2127 	.fabric_login		= qla24xx_login_fabric,
2128 	.fabric_logout		= qla24xx_fabric_logout,
2129 	.calc_req_entries	= NULL,
2130 	.build_iocbs		= NULL,
2131 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2132 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2133 	.read_nvram		= NULL,
2134 	.write_nvram		= NULL,
2135 	.fw_dump		= qla83xx_fw_dump,
2136 	.beacon_on		= qla24xx_beacon_on,
2137 	.beacon_off		= qla24xx_beacon_off,
2138 	.beacon_blink		= qla83xx_beacon_blink,
2139 	.read_optrom		= qla25xx_read_optrom_data,
2140 	.write_optrom		= qla24xx_write_optrom_data,
2141 	.get_flash_version	= qla24xx_get_flash_version,
2142 	.start_scsi		= qla24xx_dif_start_scsi,
2143 	.abort_isp		= qla2x00_abort_isp,
2144 	.iospace_config		= qla83xx_iospace_config,
2145 	.initialize_adapter	= qla2x00_initialize_adapter,
2146 };
2147 
2148 static struct isp_operations qlafx00_isp_ops = {
2149 	.pci_config		= qlafx00_pci_config,
2150 	.reset_chip		= qlafx00_soft_reset,
2151 	.chip_diag		= qlafx00_chip_diag,
2152 	.config_rings		= qlafx00_config_rings,
2153 	.reset_adapter		= qlafx00_soft_reset,
2154 	.nvram_config		= NULL,
2155 	.update_fw_options	= NULL,
2156 	.load_risc		= NULL,
2157 	.pci_info_str		= qlafx00_pci_info_str,
2158 	.fw_version_str		= qlafx00_fw_version_str,
2159 	.intr_handler		= qlafx00_intr_handler,
2160 	.enable_intrs		= qlafx00_enable_intrs,
2161 	.disable_intrs		= qlafx00_disable_intrs,
2162 	.abort_command		= qlafx00_abort_command,
2163 	.target_reset		= qlafx00_abort_target,
2164 	.lun_reset		= qlafx00_lun_reset,
2165 	.fabric_login		= NULL,
2166 	.fabric_logout		= NULL,
2167 	.calc_req_entries	= NULL,
2168 	.build_iocbs		= NULL,
2169 	.prep_ms_iocb		= qla24xx_prep_ms_iocb,
2170 	.prep_ms_fdmi_iocb	= qla24xx_prep_ms_fdmi_iocb,
2171 	.read_nvram		= qla24xx_read_nvram_data,
2172 	.write_nvram		= qla24xx_write_nvram_data,
2173 	.fw_dump		= NULL,
2174 	.beacon_on		= qla24xx_beacon_on,
2175 	.beacon_off		= qla24xx_beacon_off,
2176 	.beacon_blink		= NULL,
2177 	.read_optrom		= qla24xx_read_optrom_data,
2178 	.write_optrom		= qla24xx_write_optrom_data,
2179 	.get_flash_version	= qla24xx_get_flash_version,
2180 	.start_scsi		= qlafx00_start_scsi,
2181 	.abort_isp		= qlafx00_abort_isp,
2182 	.iospace_config		= qlafx00_iospace_config,
2183 	.initialize_adapter	= qlafx00_initialize_adapter,
2184 };
2185 
2186 static inline void
2187 qla2x00_set_isp_flags(struct qla_hw_data *ha)
2188 {
2189 	ha->device_type = DT_EXTENDED_IDS;
2190 	switch (ha->pdev->device) {
2191 	case PCI_DEVICE_ID_QLOGIC_ISP2100:
2192 		ha->device_type |= DT_ISP2100;
2193 		ha->device_type &= ~DT_EXTENDED_IDS;
2194 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2195 		break;
2196 	case PCI_DEVICE_ID_QLOGIC_ISP2200:
2197 		ha->device_type |= DT_ISP2200;
2198 		ha->device_type &= ~DT_EXTENDED_IDS;
2199 		ha->fw_srisc_address = RISC_START_ADDRESS_2100;
2200 		break;
2201 	case PCI_DEVICE_ID_QLOGIC_ISP2300:
2202 		ha->device_type |= DT_ISP2300;
2203 		ha->device_type |= DT_ZIO_SUPPORTED;
2204 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2205 		break;
2206 	case PCI_DEVICE_ID_QLOGIC_ISP2312:
2207 		ha->device_type |= DT_ISP2312;
2208 		ha->device_type |= DT_ZIO_SUPPORTED;
2209 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2210 		break;
2211 	case PCI_DEVICE_ID_QLOGIC_ISP2322:
2212 		ha->device_type |= DT_ISP2322;
2213 		ha->device_type |= DT_ZIO_SUPPORTED;
2214 		if (ha->pdev->subsystem_vendor == 0x1028 &&
2215 		    ha->pdev->subsystem_device == 0x0170)
2216 			ha->device_type |= DT_OEM_001;
2217 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2218 		break;
2219 	case PCI_DEVICE_ID_QLOGIC_ISP6312:
2220 		ha->device_type |= DT_ISP6312;
2221 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2222 		break;
2223 	case PCI_DEVICE_ID_QLOGIC_ISP6322:
2224 		ha->device_type |= DT_ISP6322;
2225 		ha->fw_srisc_address = RISC_START_ADDRESS_2300;
2226 		break;
2227 	case PCI_DEVICE_ID_QLOGIC_ISP2422:
2228 		ha->device_type |= DT_ISP2422;
2229 		ha->device_type |= DT_ZIO_SUPPORTED;
2230 		ha->device_type |= DT_FWI2;
2231 		ha->device_type |= DT_IIDMA;
2232 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2233 		break;
2234 	case PCI_DEVICE_ID_QLOGIC_ISP2432:
2235 		ha->device_type |= DT_ISP2432;
2236 		ha->device_type |= DT_ZIO_SUPPORTED;
2237 		ha->device_type |= DT_FWI2;
2238 		ha->device_type |= DT_IIDMA;
2239 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2240 		break;
2241 	case PCI_DEVICE_ID_QLOGIC_ISP8432:
2242 		ha->device_type |= DT_ISP8432;
2243 		ha->device_type |= DT_ZIO_SUPPORTED;
2244 		ha->device_type |= DT_FWI2;
2245 		ha->device_type |= DT_IIDMA;
2246 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2247 		break;
2248 	case PCI_DEVICE_ID_QLOGIC_ISP5422:
2249 		ha->device_type |= DT_ISP5422;
2250 		ha->device_type |= DT_FWI2;
2251 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2252 		break;
2253 	case PCI_DEVICE_ID_QLOGIC_ISP5432:
2254 		ha->device_type |= DT_ISP5432;
2255 		ha->device_type |= DT_FWI2;
2256 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2257 		break;
2258 	case PCI_DEVICE_ID_QLOGIC_ISP2532:
2259 		ha->device_type |= DT_ISP2532;
2260 		ha->device_type |= DT_ZIO_SUPPORTED;
2261 		ha->device_type |= DT_FWI2;
2262 		ha->device_type |= DT_IIDMA;
2263 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2264 		break;
2265 	case PCI_DEVICE_ID_QLOGIC_ISP8001:
2266 		ha->device_type |= DT_ISP8001;
2267 		ha->device_type |= DT_ZIO_SUPPORTED;
2268 		ha->device_type |= DT_FWI2;
2269 		ha->device_type |= DT_IIDMA;
2270 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2271 		break;
2272 	case PCI_DEVICE_ID_QLOGIC_ISP8021:
2273 		ha->device_type |= DT_ISP8021;
2274 		ha->device_type |= DT_ZIO_SUPPORTED;
2275 		ha->device_type |= DT_FWI2;
2276 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2277 		/* Initialize 82XX ISP flags */
2278 		qla82xx_init_flags(ha);
2279 		break;
2280 	 case PCI_DEVICE_ID_QLOGIC_ISP8044:
2281 		ha->device_type |= DT_ISP8044;
2282 		ha->device_type |= DT_ZIO_SUPPORTED;
2283 		ha->device_type |= DT_FWI2;
2284 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2285 		/* Initialize 82XX ISP flags */
2286 		qla82xx_init_flags(ha);
2287 		break;
2288 	case PCI_DEVICE_ID_QLOGIC_ISP2031:
2289 		ha->device_type |= DT_ISP2031;
2290 		ha->device_type |= DT_ZIO_SUPPORTED;
2291 		ha->device_type |= DT_FWI2;
2292 		ha->device_type |= DT_IIDMA;
2293 		ha->device_type |= DT_T10_PI;
2294 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2295 		break;
2296 	case PCI_DEVICE_ID_QLOGIC_ISP8031:
2297 		ha->device_type |= DT_ISP8031;
2298 		ha->device_type |= DT_ZIO_SUPPORTED;
2299 		ha->device_type |= DT_FWI2;
2300 		ha->device_type |= DT_IIDMA;
2301 		ha->device_type |= DT_T10_PI;
2302 		ha->fw_srisc_address = RISC_START_ADDRESS_2400;
2303 		break;
2304 	case PCI_DEVICE_ID_QLOGIC_ISPF001:
2305 		ha->device_type |= DT_ISPFX00;
2306 		break;
2307 	}
2308 
2309 	if (IS_QLA82XX(ha))
2310 		ha->port_no = !(ha->portnum & 1);
2311 	else
2312 		/* Get adapter physical port no from interrupt pin register. */
2313 		pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
2314 
2315 	if (ha->port_no & 1)
2316 		ha->flags.port0 = 1;
2317 	else
2318 		ha->flags.port0 = 0;
2319 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
2320 	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
2321 	    ha->device_type, ha->flags.port0, ha->fw_srisc_address);
2322 }
2323 
2324 static void
2325 qla2xxx_scan_start(struct Scsi_Host *shost)
2326 {
2327 	scsi_qla_host_t *vha = shost_priv(shost);
2328 
2329 	if (vha->hw->flags.running_gold_fw)
2330 		return;
2331 
2332 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2333 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2334 	set_bit(RSCN_UPDATE, &vha->dpc_flags);
2335 	set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
2336 }
2337 
2338 static int
2339 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
2340 {
2341 	scsi_qla_host_t *vha = shost_priv(shost);
2342 
2343 	if (!vha->host)
2344 		return 1;
2345 	if (time > vha->hw->loop_reset_delay * HZ)
2346 		return 1;
2347 
2348 	return atomic_read(&vha->loop_state) == LOOP_READY;
2349 }
2350 
2351 /*
2352  * PCI driver interface
2353  */
2354 static int
2355 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2356 {
2357 	int	ret = -ENODEV;
2358 	struct Scsi_Host *host;
2359 	scsi_qla_host_t *base_vha = NULL;
2360 	struct qla_hw_data *ha;
2361 	char pci_info[30];
2362 	char fw_str[30], wq_name[30];
2363 	struct scsi_host_template *sht;
2364 	int bars, mem_only = 0;
2365 	uint16_t req_length = 0, rsp_length = 0;
2366 	struct req_que *req = NULL;
2367 	struct rsp_que *rsp = NULL;
2368 	bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
2369 	sht = &qla2xxx_driver_template;
2370 	if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
2371 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
2372 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
2373 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
2374 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
2375 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
2376 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001 ||
2377 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8021 ||
2378 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2031 ||
2379 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8031 ||
2380 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISPF001 ||
2381 	    pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8044) {
2382 		bars = pci_select_bars(pdev, IORESOURCE_MEM);
2383 		mem_only = 1;
2384 		ql_dbg_pci(ql_dbg_init, pdev, 0x0007,
2385 		    "Mem only adapter.\n");
2386 	}
2387 	ql_dbg_pci(ql_dbg_init, pdev, 0x0008,
2388 	    "Bars=%d.\n", bars);
2389 
2390 	if (mem_only) {
2391 		if (pci_enable_device_mem(pdev))
2392 			goto probe_out;
2393 	} else {
2394 		if (pci_enable_device(pdev))
2395 			goto probe_out;
2396 	}
2397 
2398 	/* This may fail but that's ok */
2399 	pci_enable_pcie_error_reporting(pdev);
2400 
2401 	ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
2402 	if (!ha) {
2403 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
2404 		    "Unable to allocate memory for ha.\n");
2405 		goto probe_out;
2406 	}
2407 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
2408 	    "Memory allocated for ha=%p.\n", ha);
2409 	ha->pdev = pdev;
2410 	ha->tgt.enable_class_2 = ql2xenableclass2;
2411 
2412 	/* Clear our data area */
2413 	ha->bars = bars;
2414 	ha->mem_only = mem_only;
2415 	spin_lock_init(&ha->hardware_lock);
2416 	spin_lock_init(&ha->vport_slock);
2417 	mutex_init(&ha->selflogin_lock);
2418 
2419 	/* Set ISP-type information. */
2420 	qla2x00_set_isp_flags(ha);
2421 
2422 	/* Set EEH reset type to fundamental if required by hba */
2423 	if (IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha) ||
2424 	    IS_QLA83XX(ha))
2425 		pdev->needs_freset = 1;
2426 
2427 	ha->prev_topology = 0;
2428 	ha->init_cb_size = sizeof(init_cb_t);
2429 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
2430 	ha->optrom_size = OPTROM_SIZE_2300;
2431 	ha->cfg_lun_q_depth = ql2xmaxqdepth;
2432 
2433 	/* Assign ISP specific operations. */
2434 	if (IS_QLA2100(ha)) {
2435 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2436 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
2437 		req_length = REQUEST_ENTRY_CNT_2100;
2438 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2439 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2440 		ha->gid_list_info_size = 4;
2441 		ha->flash_conf_off = ~0;
2442 		ha->flash_data_off = ~0;
2443 		ha->nvram_conf_off = ~0;
2444 		ha->nvram_data_off = ~0;
2445 		ha->isp_ops = &qla2100_isp_ops;
2446 	} else if (IS_QLA2200(ha)) {
2447 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2448 		ha->mbx_count = MAILBOX_REGISTER_COUNT_2200;
2449 		req_length = REQUEST_ENTRY_CNT_2200;
2450 		rsp_length = RESPONSE_ENTRY_CNT_2100;
2451 		ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
2452 		ha->gid_list_info_size = 4;
2453 		ha->flash_conf_off = ~0;
2454 		ha->flash_data_off = ~0;
2455 		ha->nvram_conf_off = ~0;
2456 		ha->nvram_data_off = ~0;
2457 		ha->isp_ops = &qla2100_isp_ops;
2458 	} else if (IS_QLA23XX(ha)) {
2459 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2100;
2460 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2461 		req_length = REQUEST_ENTRY_CNT_2200;
2462 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2463 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2464 		ha->gid_list_info_size = 6;
2465 		if (IS_QLA2322(ha) || IS_QLA6322(ha))
2466 			ha->optrom_size = OPTROM_SIZE_2322;
2467 		ha->flash_conf_off = ~0;
2468 		ha->flash_data_off = ~0;
2469 		ha->nvram_conf_off = ~0;
2470 		ha->nvram_data_off = ~0;
2471 		ha->isp_ops = &qla2300_isp_ops;
2472 	} else if (IS_QLA24XX_TYPE(ha)) {
2473 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2474 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2475 		req_length = REQUEST_ENTRY_CNT_24XX;
2476 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2477 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2478 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2479 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2480 		ha->gid_list_info_size = 8;
2481 		ha->optrom_size = OPTROM_SIZE_24XX;
2482 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
2483 		ha->isp_ops = &qla24xx_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_QLA25XX(ha)) {
2489 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2490 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2491 		req_length = REQUEST_ENTRY_CNT_24XX;
2492 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2493 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2494 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2495 		ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
2496 		ha->gid_list_info_size = 8;
2497 		ha->optrom_size = OPTROM_SIZE_25XX;
2498 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2499 		ha->isp_ops = &qla25xx_isp_ops;
2500 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2501 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2502 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2503 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2504 	} else if (IS_QLA81XX(ha)) {
2505 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2506 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2507 		req_length = REQUEST_ENTRY_CNT_24XX;
2508 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2509 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2510 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2511 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2512 		ha->gid_list_info_size = 8;
2513 		ha->optrom_size = OPTROM_SIZE_81XX;
2514 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2515 		ha->isp_ops = &qla81xx_isp_ops;
2516 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2517 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2518 		ha->nvram_conf_off = ~0;
2519 		ha->nvram_data_off = ~0;
2520 	} else if (IS_QLA82XX(ha)) {
2521 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2522 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2523 		req_length = REQUEST_ENTRY_CNT_82XX;
2524 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2525 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2526 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2527 		ha->gid_list_info_size = 8;
2528 		ha->optrom_size = OPTROM_SIZE_82XX;
2529 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2530 		ha->isp_ops = &qla82xx_isp_ops;
2531 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2532 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2533 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2534 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2535 	} else if (IS_QLA8044(ha)) {
2536 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2537 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2538 		req_length = REQUEST_ENTRY_CNT_82XX;
2539 		rsp_length = RESPONSE_ENTRY_CNT_82XX;
2540 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2541 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2542 		ha->gid_list_info_size = 8;
2543 		ha->optrom_size = OPTROM_SIZE_83XX;
2544 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2545 		ha->isp_ops = &qla8044_isp_ops;
2546 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
2547 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
2548 		ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
2549 		ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
2550 	} else if (IS_QLA83XX(ha)) {
2551 		ha->portnum = PCI_FUNC(ha->pdev->devfn);
2552 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_2400;
2553 		ha->mbx_count = MAILBOX_REGISTER_COUNT;
2554 		req_length = REQUEST_ENTRY_CNT_24XX;
2555 		rsp_length = RESPONSE_ENTRY_CNT_2300;
2556 		ha->tgt.atio_q_length = ATIO_ENTRY_CNT_24XX;
2557 		ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
2558 		ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
2559 		ha->gid_list_info_size = 8;
2560 		ha->optrom_size = OPTROM_SIZE_83XX;
2561 		ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
2562 		ha->isp_ops = &qla83xx_isp_ops;
2563 		ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
2564 		ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
2565 		ha->nvram_conf_off = ~0;
2566 		ha->nvram_data_off = ~0;
2567 	}  else if (IS_QLAFX00(ha)) {
2568 		ha->max_fibre_devices = MAX_FIBRE_DEVICES_FX00;
2569 		ha->mbx_count = MAILBOX_REGISTER_COUNT_FX00;
2570 		ha->aen_mbx_count = AEN_MAILBOX_REGISTER_COUNT_FX00;
2571 		req_length = REQUEST_ENTRY_CNT_FX00;
2572 		rsp_length = RESPONSE_ENTRY_CNT_FX00;
2573 		ha->init_cb_size = sizeof(struct init_cb_fx);
2574 		ha->isp_ops = &qlafx00_isp_ops;
2575 		ha->port_down_retry_count = 30; /* default value */
2576 		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
2577 		ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
2578 		ha->mr.fw_critemp_timer_tick = QLAFX00_CRITEMP_INTERVAL;
2579 		ha->mr.fw_hbt_en = 1;
2580 	}
2581 
2582 	ql_dbg_pci(ql_dbg_init, pdev, 0x001e,
2583 	    "mbx_count=%d, req_length=%d, "
2584 	    "rsp_length=%d, max_loop_id=%d, init_cb_size=%d, "
2585 	    "gid_list_info_size=%d, optrom_size=%d, nvram_npiv_size=%d, "
2586 	    "max_fibre_devices=%d.\n",
2587 	    ha->mbx_count, req_length, rsp_length, ha->max_loop_id,
2588 	    ha->init_cb_size, ha->gid_list_info_size, ha->optrom_size,
2589 	    ha->nvram_npiv_size, ha->max_fibre_devices);
2590 	ql_dbg_pci(ql_dbg_init, pdev, 0x001f,
2591 	    "isp_ops=%p, flash_conf_off=%d, "
2592 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
2593 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
2594 	    ha->nvram_conf_off, ha->nvram_data_off);
2595 
2596 	/* Configure PCI I/O space */
2597 	ret = ha->isp_ops->iospace_config(ha);
2598 	if (ret)
2599 		goto iospace_config_failed;
2600 
2601 	ql_log_pci(ql_log_info, pdev, 0x001d,
2602 	    "Found an ISP%04X irq %d iobase 0x%p.\n",
2603 	    pdev->device, pdev->irq, ha->iobase);
2604 	mutex_init(&ha->vport_lock);
2605 	init_completion(&ha->mbx_cmd_comp);
2606 	complete(&ha->mbx_cmd_comp);
2607 	init_completion(&ha->mbx_intr_comp);
2608 	init_completion(&ha->dcbx_comp);
2609 	init_completion(&ha->lb_portup_comp);
2610 
2611 	set_bit(0, (unsigned long *) ha->vp_idx_map);
2612 
2613 	qla2x00_config_dma_addressing(ha);
2614 	ql_dbg_pci(ql_dbg_init, pdev, 0x0020,
2615 	    "64 Bit addressing is %s.\n",
2616 	    ha->flags.enable_64bit_addressing ? "enable" :
2617 	    "disable");
2618 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
2619 	if (!ret) {
2620 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
2621 		    "Failed to allocate memory for adapter, aborting.\n");
2622 
2623 		goto probe_hw_failed;
2624 	}
2625 
2626 	req->max_q_depth = MAX_Q_DEPTH;
2627 	if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
2628 		req->max_q_depth = ql2xmaxqdepth;
2629 
2630 
2631 	base_vha = qla2x00_create_host(sht, ha);
2632 	if (!base_vha) {
2633 		ret = -ENOMEM;
2634 		qla2x00_mem_free(ha);
2635 		qla2x00_free_req_que(ha, req);
2636 		qla2x00_free_rsp_que(ha, rsp);
2637 		goto probe_hw_failed;
2638 	}
2639 
2640 	pci_set_drvdata(pdev, base_vha);
2641 
2642 	host = base_vha->host;
2643 	base_vha->req = req;
2644 	if (IS_QLAFX00(ha))
2645 		host->can_queue = 1024;
2646 	else
2647 		host->can_queue = req->length + 128;
2648 	if (IS_QLA2XXX_MIDTYPE(ha))
2649 		base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
2650 	else
2651 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
2652 						base_vha->vp_idx;
2653 
2654 	/* Setup fcport template structure. */
2655 	ha->mr.fcport.vha = base_vha;
2656 	ha->mr.fcport.port_type = FCT_UNKNOWN;
2657 	ha->mr.fcport.loop_id = FC_NO_LOOP_ID;
2658 	qla2x00_set_fcport_state(&ha->mr.fcport, FCS_UNCONFIGURED);
2659 	ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
2660 	ha->mr.fcport.scan_state = 1;
2661 
2662 	/* Set the SG table size based on ISP type */
2663 	if (!IS_FWI2_CAPABLE(ha)) {
2664 		if (IS_QLA2100(ha))
2665 			host->sg_tablesize = 32;
2666 	} else {
2667 		if (!IS_QLA82XX(ha))
2668 			host->sg_tablesize = QLA_SG_ALL;
2669 	}
2670 	ql_dbg(ql_dbg_init, base_vha, 0x0032,
2671 	    "can_queue=%d, req=%p, "
2672 	    "mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
2673 	    host->can_queue, base_vha->req,
2674 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
2675 	host->max_id = ha->max_fibre_devices;
2676 	host->cmd_per_lun = 3;
2677 	host->unique_id = host->host_no;
2678 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif)
2679 		host->max_cmd_len = 32;
2680 	else
2681 		host->max_cmd_len = MAX_CMDSZ;
2682 	host->max_channel = MAX_BUSES - 1;
2683 	host->max_lun = ql2xmaxlun;
2684 	host->transportt = qla2xxx_transport_template;
2685 	sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
2686 
2687 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
2688 	    "max_id=%d this_id=%d "
2689 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
2690 	    "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
2691 	    host->this_id, host->cmd_per_lun, host->unique_id,
2692 	    host->max_cmd_len, host->max_channel, host->max_lun,
2693 	    host->transportt, sht->vendor_id);
2694 
2695 que_init:
2696 	/* Alloc arrays of request and response ring ptrs */
2697 	if (!qla2x00_alloc_queues(ha, req, rsp)) {
2698 		ql_log(ql_log_fatal, base_vha, 0x003d,
2699 		    "Failed to allocate memory for queue pointers..."
2700 		    "aborting.\n");
2701 		goto probe_init_failed;
2702 	}
2703 
2704 	qlt_probe_one_stage1(base_vha, ha);
2705 
2706 	/* Set up the irqs */
2707 	ret = qla2x00_request_irqs(ha, rsp);
2708 	if (ret)
2709 		goto probe_init_failed;
2710 
2711 	pci_save_state(pdev);
2712 
2713 	/* Assign back pointers */
2714 	rsp->req = req;
2715 	req->rsp = rsp;
2716 
2717 	if (IS_QLAFX00(ha)) {
2718 		ha->rsp_q_map[0] = rsp;
2719 		ha->req_q_map[0] = req;
2720 		set_bit(0, ha->req_qid_map);
2721 		set_bit(0, ha->rsp_qid_map);
2722 	}
2723 
2724 	/* FWI2-capable only. */
2725 	req->req_q_in = &ha->iobase->isp24.req_q_in;
2726 	req->req_q_out = &ha->iobase->isp24.req_q_out;
2727 	rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
2728 	rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
2729 	if (ha->mqenable || IS_QLA83XX(ha)) {
2730 		req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
2731 		req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
2732 		rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
2733 		rsp->rsp_q_out =  &ha->mqiobase->isp25mq.rsp_q_out;
2734 	}
2735 
2736 	if (IS_QLAFX00(ha)) {
2737 		req->req_q_in = &ha->iobase->ispfx00.req_q_in;
2738 		req->req_q_out = &ha->iobase->ispfx00.req_q_out;
2739 		rsp->rsp_q_in = &ha->iobase->ispfx00.rsp_q_in;
2740 		rsp->rsp_q_out = &ha->iobase->ispfx00.rsp_q_out;
2741 	}
2742 
2743 	if (IS_P3P_TYPE(ha)) {
2744 		req->req_q_out = &ha->iobase->isp82.req_q_out[0];
2745 		rsp->rsp_q_in = &ha->iobase->isp82.rsp_q_in[0];
2746 		rsp->rsp_q_out = &ha->iobase->isp82.rsp_q_out[0];
2747 	}
2748 
2749 	ql_dbg(ql_dbg_multiq, base_vha, 0xc009,
2750 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2751 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2752 	ql_dbg(ql_dbg_multiq, base_vha, 0xc00a,
2753 	    "req->req_q_in=%p req->req_q_out=%p "
2754 	    "rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2755 	    req->req_q_in, req->req_q_out,
2756 	    rsp->rsp_q_in, rsp->rsp_q_out);
2757 	ql_dbg(ql_dbg_init, base_vha, 0x003e,
2758 	    "rsp_q_map=%p req_q_map=%p rsp->req=%p req->rsp=%p.\n",
2759 	    ha->rsp_q_map, ha->req_q_map, rsp->req, req->rsp);
2760 	ql_dbg(ql_dbg_init, base_vha, 0x003f,
2761 	    "req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
2762 	    req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
2763 
2764 	if (ha->isp_ops->initialize_adapter(base_vha)) {
2765 		ql_log(ql_log_fatal, base_vha, 0x00d6,
2766 		    "Failed to initialize adapter - Adapter flags %x.\n",
2767 		    base_vha->device_flags);
2768 
2769 		if (IS_QLA82XX(ha)) {
2770 			qla82xx_idc_lock(ha);
2771 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
2772 				QLA8XXX_DEV_FAILED);
2773 			qla82xx_idc_unlock(ha);
2774 			ql_log(ql_log_fatal, base_vha, 0x00d7,
2775 			    "HW State: FAILED.\n");
2776 		} else if (IS_QLA8044(ha)) {
2777 			qla8044_idc_lock(ha);
2778 			qla8044_wr_direct(base_vha,
2779 				QLA8044_CRB_DEV_STATE_INDEX,
2780 				QLA8XXX_DEV_FAILED);
2781 			qla8044_idc_unlock(ha);
2782 			ql_log(ql_log_fatal, base_vha, 0x0150,
2783 			    "HW State: FAILED.\n");
2784 		}
2785 
2786 		ret = -ENODEV;
2787 		goto probe_failed;
2788 	}
2789 
2790 	if (ha->mqenable) {
2791 		if (qla25xx_setup_mode(base_vha)) {
2792 			ql_log(ql_log_warn, base_vha, 0x00ec,
2793 			    "Failed to create queues, falling back to single queue mode.\n");
2794 			goto que_init;
2795 		}
2796 	}
2797 
2798 	if (ha->flags.running_gold_fw)
2799 		goto skip_dpc;
2800 
2801 	/*
2802 	 * Startup the kernel thread for this host adapter
2803 	 */
2804 	ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2805 	    "%s_dpc", base_vha->host_str);
2806 	if (IS_ERR(ha->dpc_thread)) {
2807 		ql_log(ql_log_fatal, base_vha, 0x00ed,
2808 		    "Failed to start DPC thread.\n");
2809 		ret = PTR_ERR(ha->dpc_thread);
2810 		goto probe_failed;
2811 	}
2812 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
2813 	    "DPC thread started successfully.\n");
2814 
2815 	/*
2816 	 * If we're not coming up in initiator mode, we might sit for
2817 	 * a while without waking up the dpc thread, which leads to a
2818 	 * stuck process warning.  So just kick the dpc once here and
2819 	 * let the kthread start (and go back to sleep in qla2x00_do_dpc).
2820 	 */
2821 	qla2xxx_wake_dpc(base_vha);
2822 
2823 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
2824 		sprintf(wq_name, "qla2xxx_%lu_dpc_lp_wq", base_vha->host_no);
2825 		ha->dpc_lp_wq = create_singlethread_workqueue(wq_name);
2826 		INIT_WORK(&ha->idc_aen, qla83xx_service_idc_aen);
2827 
2828 		sprintf(wq_name, "qla2xxx_%lu_dpc_hp_wq", base_vha->host_no);
2829 		ha->dpc_hp_wq = create_singlethread_workqueue(wq_name);
2830 		INIT_WORK(&ha->nic_core_reset, qla83xx_nic_core_reset_work);
2831 		INIT_WORK(&ha->idc_state_handler,
2832 		    qla83xx_idc_state_handler_work);
2833 		INIT_WORK(&ha->nic_core_unrecoverable,
2834 		    qla83xx_nic_core_unrecoverable_work);
2835 	}
2836 
2837 skip_dpc:
2838 	list_add_tail(&base_vha->list, &ha->vp_list);
2839 	base_vha->host->irq = ha->pdev->irq;
2840 
2841 	/* Initialized the timer */
2842 	qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2843 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
2844 	    "Started qla2x00_timer with "
2845 	    "interval=%d.\n", WATCH_INTERVAL);
2846 	ql_dbg(ql_dbg_init, base_vha, 0x00f0,
2847 	    "Detected hba at address=%p.\n",
2848 	    ha);
2849 
2850 	if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
2851 		if (ha->fw_attributes & BIT_4) {
2852 			int prot = 0, guard;
2853 			base_vha->flags.difdix_supported = 1;
2854 			ql_dbg(ql_dbg_init, base_vha, 0x00f1,
2855 			    "Registering for DIF/DIX type 1 and 3 protection.\n");
2856 			if (ql2xenabledif == 1)
2857 				prot = SHOST_DIX_TYPE0_PROTECTION;
2858 			scsi_host_set_prot(host,
2859 			    prot | SHOST_DIF_TYPE1_PROTECTION
2860 			    | SHOST_DIF_TYPE2_PROTECTION
2861 			    | SHOST_DIF_TYPE3_PROTECTION
2862 			    | SHOST_DIX_TYPE1_PROTECTION
2863 			    | SHOST_DIX_TYPE2_PROTECTION
2864 			    | SHOST_DIX_TYPE3_PROTECTION);
2865 
2866 			guard = SHOST_DIX_GUARD_CRC;
2867 
2868 			if (IS_PI_IPGUARD_CAPABLE(ha) &&
2869 			    (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
2870 				guard |= SHOST_DIX_GUARD_IP;
2871 
2872 			scsi_host_set_guard(host, guard);
2873 		} else
2874 			base_vha->flags.difdix_supported = 0;
2875 	}
2876 
2877 	ha->isp_ops->enable_intrs(ha);
2878 
2879 	if (IS_QLAFX00(ha)) {
2880 		ret = qlafx00_fx_disc(base_vha,
2881 			&base_vha->hw->mr.fcport, FXDISC_GET_CONFIG_INFO);
2882 		host->sg_tablesize = (ha->mr.extended_io_enabled) ?
2883 		    QLA_SG_ALL : 128;
2884 	}
2885 
2886 	ret = scsi_add_host(host, &pdev->dev);
2887 	if (ret)
2888 		goto probe_failed;
2889 
2890 	base_vha->flags.init_done = 1;
2891 	base_vha->flags.online = 1;
2892 
2893 	ql_dbg(ql_dbg_init, base_vha, 0x00f2,
2894 	    "Init done and hba is online.\n");
2895 
2896 	if (qla_ini_mode_enabled(base_vha))
2897 		scsi_scan_host(host);
2898 	else
2899 		ql_dbg(ql_dbg_init, base_vha, 0x0122,
2900 			"skipping scsi_scan_host() for non-initiator port\n");
2901 
2902 	qla2x00_alloc_sysfs_attr(base_vha);
2903 
2904 	if (IS_QLAFX00(ha)) {
2905 		ret = qlafx00_fx_disc(base_vha,
2906 			&base_vha->hw->mr.fcport, FXDISC_GET_PORT_INFO);
2907 
2908 		/* Register system information */
2909 		ret =  qlafx00_fx_disc(base_vha,
2910 			&base_vha->hw->mr.fcport, FXDISC_REG_HOST_INFO);
2911 	}
2912 
2913 	qla2x00_init_host_attr(base_vha);
2914 
2915 	qla2x00_dfs_setup(base_vha);
2916 
2917 	ql_log(ql_log_info, base_vha, 0x00fb,
2918 	    "QLogic %s - %s.\n", ha->model_number, ha->model_desc);
2919 	ql_log(ql_log_info, base_vha, 0x00fc,
2920 	    "ISP%04X: %s @ %s hdma%c host#=%ld fw=%s.\n",
2921 	    pdev->device, ha->isp_ops->pci_info_str(base_vha, pci_info),
2922 	    pci_name(pdev), ha->flags.enable_64bit_addressing ? '+' : '-',
2923 	    base_vha->host_no,
2924 	    ha->isp_ops->fw_version_str(base_vha, fw_str));
2925 
2926 	qlt_add_target(ha, base_vha);
2927 
2928 	return 0;
2929 
2930 probe_init_failed:
2931 	qla2x00_free_req_que(ha, req);
2932 	ha->req_q_map[0] = NULL;
2933 	clear_bit(0, ha->req_qid_map);
2934 	qla2x00_free_rsp_que(ha, rsp);
2935 	ha->rsp_q_map[0] = NULL;
2936 	clear_bit(0, ha->rsp_qid_map);
2937 	ha->max_req_queues = ha->max_rsp_queues = 0;
2938 
2939 probe_failed:
2940 	if (base_vha->timer_active)
2941 		qla2x00_stop_timer(base_vha);
2942 	base_vha->flags.online = 0;
2943 	if (ha->dpc_thread) {
2944 		struct task_struct *t = ha->dpc_thread;
2945 
2946 		ha->dpc_thread = NULL;
2947 		kthread_stop(t);
2948 	}
2949 
2950 	qla2x00_free_device(base_vha);
2951 
2952 	scsi_host_put(base_vha->host);
2953 
2954 probe_hw_failed:
2955 	if (IS_QLA82XX(ha)) {
2956 		qla82xx_idc_lock(ha);
2957 		qla82xx_clear_drv_active(ha);
2958 		qla82xx_idc_unlock(ha);
2959 	}
2960 	if (IS_QLA8044(ha)) {
2961 		qla8044_idc_lock(ha);
2962 		qla8044_clear_drv_active(base_vha);
2963 		qla8044_idc_unlock(ha);
2964 	}
2965 iospace_config_failed:
2966 	if (IS_P3P_TYPE(ha)) {
2967 		if (!ha->nx_pcibase)
2968 			iounmap((device_reg_t __iomem *)ha->nx_pcibase);
2969 		if (!ql2xdbwr)
2970 			iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
2971 	} else {
2972 		if (ha->iobase)
2973 			iounmap(ha->iobase);
2974 		if (ha->cregbase)
2975 			iounmap(ha->cregbase);
2976 	}
2977 	pci_release_selected_regions(ha->pdev, ha->bars);
2978 	kfree(ha);
2979 	ha = NULL;
2980 
2981 probe_out:
2982 	pci_disable_device(pdev);
2983 	return ret;
2984 }
2985 
2986 static void
2987 qla2x00_stop_dpc_thread(scsi_qla_host_t *vha)
2988 {
2989 	struct qla_hw_data *ha = vha->hw;
2990 	struct task_struct *t = ha->dpc_thread;
2991 
2992 	if (ha->dpc_thread == NULL)
2993 		return;
2994 	/*
2995 	 * qla2xxx_wake_dpc checks for ->dpc_thread
2996 	 * so we need to zero it out.
2997 	 */
2998 	ha->dpc_thread = NULL;
2999 	kthread_stop(t);
3000 }
3001 
3002 static void
3003 qla2x00_shutdown(struct pci_dev *pdev)
3004 {
3005 	scsi_qla_host_t *vha;
3006 	struct qla_hw_data  *ha;
3007 
3008 	if (!atomic_read(&pdev->enable_cnt))
3009 		return;
3010 
3011 	vha = pci_get_drvdata(pdev);
3012 	ha = vha->hw;
3013 
3014 	/* Notify ISPFX00 firmware */
3015 	if (IS_QLAFX00(ha))
3016 		qlafx00_driver_shutdown(vha, 20);
3017 
3018 	/* Turn-off FCE trace */
3019 	if (ha->flags.fce_enabled) {
3020 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3021 		ha->flags.fce_enabled = 0;
3022 	}
3023 
3024 	/* Turn-off EFT trace */
3025 	if (ha->eft)
3026 		qla2x00_disable_eft_trace(vha);
3027 
3028 	/* Stop currently executing firmware. */
3029 	qla2x00_try_to_stop_firmware(vha);
3030 
3031 	/* Turn adapter off line */
3032 	vha->flags.online = 0;
3033 
3034 	/* turn-off interrupts on the card */
3035 	if (ha->interrupts_on) {
3036 		vha->flags.init_done = 0;
3037 		ha->isp_ops->disable_intrs(ha);
3038 	}
3039 
3040 	qla2x00_free_irqs(vha);
3041 
3042 	qla2x00_free_fw_dump(ha);
3043 }
3044 
3045 static void
3046 qla2x00_remove_one(struct pci_dev *pdev)
3047 {
3048 	scsi_qla_host_t *base_vha, *vha;
3049 	struct qla_hw_data  *ha;
3050 	unsigned long flags;
3051 
3052 	/*
3053 	 * If the PCI device is disabled that means that probe failed and any
3054 	 * resources should be have cleaned up on probe exit.
3055 	 */
3056 	if (!atomic_read(&pdev->enable_cnt))
3057 		return;
3058 
3059 	base_vha = pci_get_drvdata(pdev);
3060 	ha = base_vha->hw;
3061 
3062 	ha->flags.host_shutting_down = 1;
3063 
3064 	set_bit(UNLOADING, &base_vha->dpc_flags);
3065 	if (IS_QLAFX00(ha))
3066 		qlafx00_driver_shutdown(base_vha, 20);
3067 
3068 	mutex_lock(&ha->vport_lock);
3069 	while (ha->cur_vport_count) {
3070 		spin_lock_irqsave(&ha->vport_slock, flags);
3071 
3072 		BUG_ON(base_vha->list.next == &ha->vp_list);
3073 		/* This assumes first entry in ha->vp_list is always base vha */
3074 		vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
3075 		scsi_host_get(vha->host);
3076 
3077 		spin_unlock_irqrestore(&ha->vport_slock, flags);
3078 		mutex_unlock(&ha->vport_lock);
3079 
3080 		fc_vport_terminate(vha->fc_vport);
3081 		scsi_host_put(vha->host);
3082 
3083 		mutex_lock(&ha->vport_lock);
3084 	}
3085 	mutex_unlock(&ha->vport_lock);
3086 
3087 	if (IS_QLA8031(ha)) {
3088 		ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
3089 		    "Clearing fcoe driver presence.\n");
3090 		if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
3091 			ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
3092 			    "Error while clearing DRV-Presence.\n");
3093 	}
3094 
3095 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
3096 
3097 	qla2x00_dfs_remove(base_vha);
3098 
3099 	qla84xx_put_chip(base_vha);
3100 
3101 	/* Disable timer */
3102 	if (base_vha->timer_active)
3103 		qla2x00_stop_timer(base_vha);
3104 
3105 	base_vha->flags.online = 0;
3106 
3107 	/* Flush the work queue and remove it */
3108 	if (ha->wq) {
3109 		flush_workqueue(ha->wq);
3110 		destroy_workqueue(ha->wq);
3111 		ha->wq = NULL;
3112 	}
3113 
3114 	/* Cancel all work and destroy DPC workqueues */
3115 	if (ha->dpc_lp_wq) {
3116 		cancel_work_sync(&ha->idc_aen);
3117 		destroy_workqueue(ha->dpc_lp_wq);
3118 		ha->dpc_lp_wq = NULL;
3119 	}
3120 
3121 	if (ha->dpc_hp_wq) {
3122 		cancel_work_sync(&ha->nic_core_reset);
3123 		cancel_work_sync(&ha->idc_state_handler);
3124 		cancel_work_sync(&ha->nic_core_unrecoverable);
3125 		destroy_workqueue(ha->dpc_hp_wq);
3126 		ha->dpc_hp_wq = NULL;
3127 	}
3128 
3129 	/* Kill the kernel thread for this host */
3130 	if (ha->dpc_thread) {
3131 		struct task_struct *t = ha->dpc_thread;
3132 
3133 		/*
3134 		 * qla2xxx_wake_dpc checks for ->dpc_thread
3135 		 * so we need to zero it out.
3136 		 */
3137 		ha->dpc_thread = NULL;
3138 		kthread_stop(t);
3139 	}
3140 	qlt_remove_target(ha, base_vha);
3141 
3142 	qla2x00_free_sysfs_attr(base_vha);
3143 
3144 	fc_remove_host(base_vha->host);
3145 
3146 	scsi_remove_host(base_vha->host);
3147 
3148 	qla2x00_free_device(base_vha);
3149 
3150 	scsi_host_put(base_vha->host);
3151 
3152 	if (IS_QLA8044(ha)) {
3153 		qla8044_idc_lock(ha);
3154 		qla8044_clear_drv_active(base_vha);
3155 		qla8044_idc_unlock(ha);
3156 	}
3157 	if (IS_QLA82XX(ha)) {
3158 		qla82xx_idc_lock(ha);
3159 		qla82xx_clear_drv_active(ha);
3160 		qla82xx_idc_unlock(ha);
3161 
3162 		iounmap((device_reg_t __iomem *)ha->nx_pcibase);
3163 		if (!ql2xdbwr)
3164 			iounmap((device_reg_t __iomem *)ha->nxdb_wr_ptr);
3165 	} else {
3166 		if (ha->iobase)
3167 			iounmap(ha->iobase);
3168 
3169 		if (ha->cregbase)
3170 			iounmap(ha->cregbase);
3171 
3172 		if (ha->mqiobase)
3173 			iounmap(ha->mqiobase);
3174 
3175 		if (IS_QLA83XX(ha) && ha->msixbase)
3176 			iounmap(ha->msixbase);
3177 	}
3178 
3179 	pci_release_selected_regions(ha->pdev, ha->bars);
3180 	kfree(ha);
3181 	ha = NULL;
3182 
3183 	pci_disable_pcie_error_reporting(pdev);
3184 
3185 	pci_disable_device(pdev);
3186 	pci_set_drvdata(pdev, NULL);
3187 }
3188 
3189 static void
3190 qla2x00_free_device(scsi_qla_host_t *vha)
3191 {
3192 	struct qla_hw_data *ha = vha->hw;
3193 
3194 	qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3195 
3196 	/* Disable timer */
3197 	if (vha->timer_active)
3198 		qla2x00_stop_timer(vha);
3199 
3200 	qla2x00_stop_dpc_thread(vha);
3201 
3202 	qla25xx_delete_queues(vha);
3203 	if (ha->flags.fce_enabled)
3204 		qla2x00_disable_fce_trace(vha, NULL, NULL);
3205 
3206 	if (ha->eft)
3207 		qla2x00_disable_eft_trace(vha);
3208 
3209 	/* Stop currently executing firmware. */
3210 	qla2x00_try_to_stop_firmware(vha);
3211 
3212 	vha->flags.online = 0;
3213 
3214 	/* turn-off interrupts on the card */
3215 	if (ha->interrupts_on) {
3216 		vha->flags.init_done = 0;
3217 		ha->isp_ops->disable_intrs(ha);
3218 	}
3219 
3220 	qla2x00_free_irqs(vha);
3221 
3222 	qla2x00_free_fcports(vha);
3223 
3224 	qla2x00_mem_free(ha);
3225 
3226 	qla82xx_md_free(vha);
3227 
3228 	qla2x00_free_queues(ha);
3229 }
3230 
3231 void qla2x00_free_fcports(struct scsi_qla_host *vha)
3232 {
3233 	fc_port_t *fcport, *tfcport;
3234 
3235 	list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) {
3236 		list_del(&fcport->list);
3237 		qla2x00_clear_loop_id(fcport);
3238 		kfree(fcport);
3239 		fcport = NULL;
3240 	}
3241 }
3242 
3243 static inline void
3244 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
3245     int defer)
3246 {
3247 	struct fc_rport *rport;
3248 	scsi_qla_host_t *base_vha;
3249 	unsigned long flags;
3250 
3251 	if (!fcport->rport)
3252 		return;
3253 
3254 	rport = fcport->rport;
3255 	if (defer) {
3256 		base_vha = pci_get_drvdata(vha->hw->pdev);
3257 		spin_lock_irqsave(vha->host->host_lock, flags);
3258 		fcport->drport = rport;
3259 		spin_unlock_irqrestore(vha->host->host_lock, flags);
3260 		set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
3261 		qla2xxx_wake_dpc(base_vha);
3262 	} else {
3263 		fc_remote_port_delete(rport);
3264 		qlt_fc_port_deleted(vha, fcport);
3265 	}
3266 }
3267 
3268 /*
3269  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
3270  *
3271  * Input: ha = adapter block pointer.  fcport = port structure pointer.
3272  *
3273  * Return: None.
3274  *
3275  * Context:
3276  */
3277 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
3278     int do_login, int defer)
3279 {
3280 	if (IS_QLAFX00(vha->hw)) {
3281 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3282 		qla2x00_schedule_rport_del(vha, fcport, defer);
3283 		return;
3284 	}
3285 
3286 	if (atomic_read(&fcport->state) == FCS_ONLINE &&
3287 	    vha->vp_idx == fcport->vha->vp_idx) {
3288 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3289 		qla2x00_schedule_rport_del(vha, fcport, defer);
3290 	}
3291 	/*
3292 	 * We may need to retry the login, so don't change the state of the
3293 	 * port but do the retries.
3294 	 */
3295 	if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
3296 		qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3297 
3298 	if (!do_login)
3299 		return;
3300 
3301 	if (fcport->login_retry == 0) {
3302 		fcport->login_retry = vha->hw->login_retry_count;
3303 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
3304 
3305 		ql_dbg(ql_dbg_disc, vha, 0x2067,
3306 		    "Port login retry %8phN, id = 0x%04x retry cnt=%d.\n",
3307 		    fcport->port_name, fcport->loop_id, fcport->login_retry);
3308 	}
3309 }
3310 
3311 /*
3312  * qla2x00_mark_all_devices_lost
3313  *	Updates fcport state when device goes offline.
3314  *
3315  * Input:
3316  *	ha = adapter block pointer.
3317  *	fcport = port structure pointer.
3318  *
3319  * Return:
3320  *	None.
3321  *
3322  * Context:
3323  */
3324 void
3325 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
3326 {
3327 	fc_port_t *fcport;
3328 
3329 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
3330 		if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
3331 			continue;
3332 
3333 		/*
3334 		 * No point in marking the device as lost, if the device is
3335 		 * already DEAD.
3336 		 */
3337 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
3338 			continue;
3339 		if (atomic_read(&fcport->state) == FCS_ONLINE) {
3340 			qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
3341 			if (defer)
3342 				qla2x00_schedule_rport_del(vha, fcport, defer);
3343 			else if (vha->vp_idx == fcport->vha->vp_idx)
3344 				qla2x00_schedule_rport_del(vha, fcport, defer);
3345 		}
3346 	}
3347 }
3348 
3349 /*
3350 * qla2x00_mem_alloc
3351 *      Allocates adapter memory.
3352 *
3353 * Returns:
3354 *      0  = success.
3355 *      !0  = failure.
3356 */
3357 static int
3358 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
3359 	struct req_que **req, struct rsp_que **rsp)
3360 {
3361 	char	name[16];
3362 
3363 	ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
3364 		&ha->init_cb_dma, GFP_KERNEL);
3365 	if (!ha->init_cb)
3366 		goto fail;
3367 
3368 	if (qlt_mem_alloc(ha) < 0)
3369 		goto fail_free_init_cb;
3370 
3371 	ha->gid_list = dma_alloc_coherent(&ha->pdev->dev,
3372 		qla2x00_gid_list_size(ha), &ha->gid_list_dma, GFP_KERNEL);
3373 	if (!ha->gid_list)
3374 		goto fail_free_tgt_mem;
3375 
3376 	ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
3377 	if (!ha->srb_mempool)
3378 		goto fail_free_gid_list;
3379 
3380 	if (IS_P3P_TYPE(ha)) {
3381 		/* Allocate cache for CT6 Ctx. */
3382 		if (!ctx_cachep) {
3383 			ctx_cachep = kmem_cache_create("qla2xxx_ctx",
3384 				sizeof(struct ct6_dsd), 0,
3385 				SLAB_HWCACHE_ALIGN, NULL);
3386 			if (!ctx_cachep)
3387 				goto fail_free_gid_list;
3388 		}
3389 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
3390 			ctx_cachep);
3391 		if (!ha->ctx_mempool)
3392 			goto fail_free_srb_mempool;
3393 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0021,
3394 		    "ctx_cachep=%p ctx_mempool=%p.\n",
3395 		    ctx_cachep, ha->ctx_mempool);
3396 	}
3397 
3398 	/* Get memory for cached NVRAM */
3399 	ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
3400 	if (!ha->nvram)
3401 		goto fail_free_ctx_mempool;
3402 
3403 	snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
3404 		ha->pdev->device);
3405 	ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3406 		DMA_POOL_SIZE, 8, 0);
3407 	if (!ha->s_dma_pool)
3408 		goto fail_free_nvram;
3409 
3410 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0022,
3411 	    "init_cb=%p gid_list=%p, srb_mempool=%p s_dma_pool=%p.\n",
3412 	    ha->init_cb, ha->gid_list, ha->srb_mempool, ha->s_dma_pool);
3413 
3414 	if (IS_P3P_TYPE(ha) || ql2xenabledif) {
3415 		ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3416 			DSD_LIST_DMA_POOL_SIZE, 8, 0);
3417 		if (!ha->dl_dma_pool) {
3418 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0023,
3419 			    "Failed to allocate memory for dl_dma_pool.\n");
3420 			goto fail_s_dma_pool;
3421 		}
3422 
3423 		ha->fcp_cmnd_dma_pool = dma_pool_create(name, &ha->pdev->dev,
3424 			FCP_CMND_DMA_POOL_SIZE, 8, 0);
3425 		if (!ha->fcp_cmnd_dma_pool) {
3426 			ql_log_pci(ql_log_fatal, ha->pdev, 0x0024,
3427 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
3428 			goto fail_dl_dma_pool;
3429 		}
3430 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
3431 		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
3432 		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
3433 	}
3434 
3435 	/* Allocate memory for SNS commands */
3436 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3437 	/* Get consistent memory allocated for SNS commands */
3438 		ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
3439 		sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
3440 		if (!ha->sns_cmd)
3441 			goto fail_dma_pool;
3442 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
3443 		    "sns_cmd: %p.\n", ha->sns_cmd);
3444 	} else {
3445 	/* Get consistent memory allocated for MS IOCB */
3446 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3447 			&ha->ms_iocb_dma);
3448 		if (!ha->ms_iocb)
3449 			goto fail_dma_pool;
3450 	/* Get consistent memory allocated for CT SNS commands */
3451 		ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
3452 			sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
3453 		if (!ha->ct_sns)
3454 			goto fail_free_ms_iocb;
3455 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0027,
3456 		    "ms_iocb=%p ct_sns=%p.\n",
3457 		    ha->ms_iocb, ha->ct_sns);
3458 	}
3459 
3460 	/* Allocate memory for request ring */
3461 	*req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
3462 	if (!*req) {
3463 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0028,
3464 		    "Failed to allocate memory for req.\n");
3465 		goto fail_req;
3466 	}
3467 	(*req)->length = req_len;
3468 	(*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
3469 		((*req)->length + 1) * sizeof(request_t),
3470 		&(*req)->dma, GFP_KERNEL);
3471 	if (!(*req)->ring) {
3472 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0029,
3473 		    "Failed to allocate memory for req_ring.\n");
3474 		goto fail_req_ring;
3475 	}
3476 	/* Allocate memory for response ring */
3477 	*rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
3478 	if (!*rsp) {
3479 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002a,
3480 		    "Failed to allocate memory for rsp.\n");
3481 		goto fail_rsp;
3482 	}
3483 	(*rsp)->hw = ha;
3484 	(*rsp)->length = rsp_len;
3485 	(*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
3486 		((*rsp)->length + 1) * sizeof(response_t),
3487 		&(*rsp)->dma, GFP_KERNEL);
3488 	if (!(*rsp)->ring) {
3489 		ql_log_pci(ql_log_fatal, ha->pdev, 0x002b,
3490 		    "Failed to allocate memory for rsp_ring.\n");
3491 		goto fail_rsp_ring;
3492 	}
3493 	(*req)->rsp = *rsp;
3494 	(*rsp)->req = *req;
3495 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002c,
3496 	    "req=%p req->length=%d req->ring=%p rsp=%p "
3497 	    "rsp->length=%d rsp->ring=%p.\n",
3498 	    *req, (*req)->length, (*req)->ring, *rsp, (*rsp)->length,
3499 	    (*rsp)->ring);
3500 	/* Allocate memory for NVRAM data for vports */
3501 	if (ha->nvram_npiv_size) {
3502 		ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
3503 		    ha->nvram_npiv_size, GFP_KERNEL);
3504 		if (!ha->npiv_info) {
3505 			ql_log_pci(ql_log_fatal, ha->pdev, 0x002d,
3506 			    "Failed to allocate memory for npiv_info.\n");
3507 			goto fail_npiv_info;
3508 		}
3509 	} else
3510 		ha->npiv_info = NULL;
3511 
3512 	/* Get consistent memory allocated for EX-INIT-CB. */
3513 	if (IS_CNA_CAPABLE(ha) || IS_QLA2031(ha)) {
3514 		ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3515 		    &ha->ex_init_cb_dma);
3516 		if (!ha->ex_init_cb)
3517 			goto fail_ex_init_cb;
3518 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002e,
3519 		    "ex_init_cb=%p.\n", ha->ex_init_cb);
3520 	}
3521 
3522 	INIT_LIST_HEAD(&ha->gbl_dsd_list);
3523 
3524 	/* Get consistent memory allocated for Async Port-Database. */
3525 	if (!IS_FWI2_CAPABLE(ha)) {
3526 		ha->async_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
3527 			&ha->async_pd_dma);
3528 		if (!ha->async_pd)
3529 			goto fail_async_pd;
3530 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x002f,
3531 		    "async_pd=%p.\n", ha->async_pd);
3532 	}
3533 
3534 	INIT_LIST_HEAD(&ha->vp_list);
3535 
3536 	/* Allocate memory for our loop_id bitmap */
3537 	ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
3538 	    GFP_KERNEL);
3539 	if (!ha->loop_id_map)
3540 		goto fail_async_pd;
3541 	else {
3542 		qla2x00_set_reserved_loop_ids(ha);
3543 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
3544 		    "loop_id_map=%p. \n", ha->loop_id_map);
3545 	}
3546 
3547 	return 1;
3548 
3549 fail_async_pd:
3550 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
3551 fail_ex_init_cb:
3552 	kfree(ha->npiv_info);
3553 fail_npiv_info:
3554 	dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
3555 		sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
3556 	(*rsp)->ring = NULL;
3557 	(*rsp)->dma = 0;
3558 fail_rsp_ring:
3559 	kfree(*rsp);
3560 fail_rsp:
3561 	dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
3562 		sizeof(request_t), (*req)->ring, (*req)->dma);
3563 	(*req)->ring = NULL;
3564 	(*req)->dma = 0;
3565 fail_req_ring:
3566 	kfree(*req);
3567 fail_req:
3568 	dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3569 		ha->ct_sns, ha->ct_sns_dma);
3570 	ha->ct_sns = NULL;
3571 	ha->ct_sns_dma = 0;
3572 fail_free_ms_iocb:
3573 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3574 	ha->ms_iocb = NULL;
3575 	ha->ms_iocb_dma = 0;
3576 fail_dma_pool:
3577 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3578 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3579 		ha->fcp_cmnd_dma_pool = NULL;
3580 	}
3581 fail_dl_dma_pool:
3582 	if (IS_QLA82XX(ha) || ql2xenabledif) {
3583 		dma_pool_destroy(ha->dl_dma_pool);
3584 		ha->dl_dma_pool = NULL;
3585 	}
3586 fail_s_dma_pool:
3587 	dma_pool_destroy(ha->s_dma_pool);
3588 	ha->s_dma_pool = NULL;
3589 fail_free_nvram:
3590 	kfree(ha->nvram);
3591 	ha->nvram = NULL;
3592 fail_free_ctx_mempool:
3593 	mempool_destroy(ha->ctx_mempool);
3594 	ha->ctx_mempool = NULL;
3595 fail_free_srb_mempool:
3596 	mempool_destroy(ha->srb_mempool);
3597 	ha->srb_mempool = NULL;
3598 fail_free_gid_list:
3599 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3600 	ha->gid_list,
3601 	ha->gid_list_dma);
3602 	ha->gid_list = NULL;
3603 	ha->gid_list_dma = 0;
3604 fail_free_tgt_mem:
3605 	qlt_mem_free(ha);
3606 fail_free_init_cb:
3607 	dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
3608 	ha->init_cb_dma);
3609 	ha->init_cb = NULL;
3610 	ha->init_cb_dma = 0;
3611 fail:
3612 	ql_log(ql_log_fatal, NULL, 0x0030,
3613 	    "Memory allocation failure.\n");
3614 	return -ENOMEM;
3615 }
3616 
3617 /*
3618 * qla2x00_free_fw_dump
3619 *	Frees fw dump stuff.
3620 *
3621 * Input:
3622 *	ha = adapter block pointer
3623 */
3624 static void
3625 qla2x00_free_fw_dump(struct qla_hw_data *ha)
3626 {
3627 	if (ha->fce)
3628 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
3629 		    ha->fce_dma);
3630 
3631 	if (ha->fw_dump) {
3632 		if (ha->eft)
3633 			dma_free_coherent(&ha->pdev->dev,
3634 			    ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
3635 		vfree(ha->fw_dump);
3636 	}
3637 	ha->fce = NULL;
3638 	ha->fce_dma = 0;
3639 	ha->eft = NULL;
3640 	ha->eft_dma = 0;
3641 	ha->fw_dump = NULL;
3642 	ha->fw_dumped = 0;
3643 	ha->fw_dump_reading = 0;
3644 }
3645 
3646 /*
3647 * qla2x00_mem_free
3648 *      Frees all adapter allocated memory.
3649 *
3650 * Input:
3651 *      ha = adapter block pointer.
3652 */
3653 static void
3654 qla2x00_mem_free(struct qla_hw_data *ha)
3655 {
3656 	qla2x00_free_fw_dump(ha);
3657 
3658 	if (ha->mctp_dump)
3659 		dma_free_coherent(&ha->pdev->dev, MCTP_DUMP_SIZE, ha->mctp_dump,
3660 		    ha->mctp_dump_dma);
3661 
3662 	if (ha->srb_mempool)
3663 		mempool_destroy(ha->srb_mempool);
3664 
3665 	if (ha->dcbx_tlv)
3666 		dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
3667 		    ha->dcbx_tlv, ha->dcbx_tlv_dma);
3668 
3669 	if (ha->xgmac_data)
3670 		dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
3671 		    ha->xgmac_data, ha->xgmac_data_dma);
3672 
3673 	if (ha->sns_cmd)
3674 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
3675 		ha->sns_cmd, ha->sns_cmd_dma);
3676 
3677 	if (ha->ct_sns)
3678 		dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
3679 		ha->ct_sns, ha->ct_sns_dma);
3680 
3681 	if (ha->sfp_data)
3682 		dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
3683 
3684 	if (ha->ms_iocb)
3685 		dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
3686 
3687 	if (ha->ex_init_cb)
3688 		dma_pool_free(ha->s_dma_pool,
3689 			ha->ex_init_cb, ha->ex_init_cb_dma);
3690 
3691 	if (ha->async_pd)
3692 		dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
3693 
3694 	if (ha->s_dma_pool)
3695 		dma_pool_destroy(ha->s_dma_pool);
3696 
3697 	if (ha->gid_list)
3698 		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
3699 		ha->gid_list, ha->gid_list_dma);
3700 
3701 	if (IS_QLA82XX(ha)) {
3702 		if (!list_empty(&ha->gbl_dsd_list)) {
3703 			struct dsd_dma *dsd_ptr, *tdsd_ptr;
3704 
3705 			/* clean up allocated prev pool */
3706 			list_for_each_entry_safe(dsd_ptr,
3707 				tdsd_ptr, &ha->gbl_dsd_list, list) {
3708 				dma_pool_free(ha->dl_dma_pool,
3709 				dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
3710 				list_del(&dsd_ptr->list);
3711 				kfree(dsd_ptr);
3712 			}
3713 		}
3714 	}
3715 
3716 	if (ha->dl_dma_pool)
3717 		dma_pool_destroy(ha->dl_dma_pool);
3718 
3719 	if (ha->fcp_cmnd_dma_pool)
3720 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
3721 
3722 	if (ha->ctx_mempool)
3723 		mempool_destroy(ha->ctx_mempool);
3724 
3725 	qlt_mem_free(ha);
3726 
3727 	if (ha->init_cb)
3728 		dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
3729 			ha->init_cb, ha->init_cb_dma);
3730 	vfree(ha->optrom_buffer);
3731 	kfree(ha->nvram);
3732 	kfree(ha->npiv_info);
3733 	kfree(ha->swl);
3734 	kfree(ha->loop_id_map);
3735 
3736 	ha->srb_mempool = NULL;
3737 	ha->ctx_mempool = NULL;
3738 	ha->sns_cmd = NULL;
3739 	ha->sns_cmd_dma = 0;
3740 	ha->ct_sns = NULL;
3741 	ha->ct_sns_dma = 0;
3742 	ha->ms_iocb = NULL;
3743 	ha->ms_iocb_dma = 0;
3744 	ha->init_cb = NULL;
3745 	ha->init_cb_dma = 0;
3746 	ha->ex_init_cb = NULL;
3747 	ha->ex_init_cb_dma = 0;
3748 	ha->async_pd = NULL;
3749 	ha->async_pd_dma = 0;
3750 
3751 	ha->s_dma_pool = NULL;
3752 	ha->dl_dma_pool = NULL;
3753 	ha->fcp_cmnd_dma_pool = NULL;
3754 
3755 	ha->gid_list = NULL;
3756 	ha->gid_list_dma = 0;
3757 
3758 	ha->tgt.atio_ring = NULL;
3759 	ha->tgt.atio_dma = 0;
3760 	ha->tgt.tgt_vp_map = NULL;
3761 }
3762 
3763 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
3764 						struct qla_hw_data *ha)
3765 {
3766 	struct Scsi_Host *host;
3767 	struct scsi_qla_host *vha = NULL;
3768 
3769 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
3770 	if (host == NULL) {
3771 		ql_log_pci(ql_log_fatal, ha->pdev, 0x0107,
3772 		    "Failed to allocate host from the scsi layer, aborting.\n");
3773 		goto fail;
3774 	}
3775 
3776 	/* Clear our data area */
3777 	vha = shost_priv(host);
3778 	memset(vha, 0, sizeof(scsi_qla_host_t));
3779 
3780 	vha->host = host;
3781 	vha->host_no = host->host_no;
3782 	vha->hw = ha;
3783 
3784 	INIT_LIST_HEAD(&vha->vp_fcports);
3785 	INIT_LIST_HEAD(&vha->work_list);
3786 	INIT_LIST_HEAD(&vha->list);
3787 
3788 	spin_lock_init(&vha->work_lock);
3789 
3790 	sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
3791 	ql_dbg(ql_dbg_init, vha, 0x0041,
3792 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
3793 	    vha->host, vha->hw, vha,
3794 	    dev_name(&(ha->pdev->dev)));
3795 
3796 	return vha;
3797 
3798 fail:
3799 	return vha;
3800 }
3801 
3802 static struct qla_work_evt *
3803 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
3804 {
3805 	struct qla_work_evt *e;
3806 	uint8_t bail;
3807 
3808 	QLA_VHA_MARK_BUSY(vha, bail);
3809 	if (bail)
3810 		return NULL;
3811 
3812 	e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
3813 	if (!e) {
3814 		QLA_VHA_MARK_NOT_BUSY(vha);
3815 		return NULL;
3816 	}
3817 
3818 	INIT_LIST_HEAD(&e->list);
3819 	e->type = type;
3820 	e->flags = QLA_EVT_FLAG_FREE;
3821 	return e;
3822 }
3823 
3824 static int
3825 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
3826 {
3827 	unsigned long flags;
3828 
3829 	spin_lock_irqsave(&vha->work_lock, flags);
3830 	list_add_tail(&e->list, &vha->work_list);
3831 	spin_unlock_irqrestore(&vha->work_lock, flags);
3832 	qla2xxx_wake_dpc(vha);
3833 
3834 	return QLA_SUCCESS;
3835 }
3836 
3837 int
3838 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
3839     u32 data)
3840 {
3841 	struct qla_work_evt *e;
3842 
3843 	e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
3844 	if (!e)
3845 		return QLA_FUNCTION_FAILED;
3846 
3847 	e->u.aen.code = code;
3848 	e->u.aen.data = data;
3849 	return qla2x00_post_work(vha, e);
3850 }
3851 
3852 int
3853 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
3854 {
3855 	struct qla_work_evt *e;
3856 
3857 	e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
3858 	if (!e)
3859 		return QLA_FUNCTION_FAILED;
3860 
3861 	memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
3862 	return qla2x00_post_work(vha, e);
3863 }
3864 
3865 #define qla2x00_post_async_work(name, type)	\
3866 int qla2x00_post_async_##name##_work(		\
3867     struct scsi_qla_host *vha,			\
3868     fc_port_t *fcport, uint16_t *data)		\
3869 {						\
3870 	struct qla_work_evt *e;			\
3871 						\
3872 	e = qla2x00_alloc_work(vha, type);	\
3873 	if (!e)					\
3874 		return QLA_FUNCTION_FAILED;	\
3875 						\
3876 	e->u.logio.fcport = fcport;		\
3877 	if (data) {				\
3878 		e->u.logio.data[0] = data[0];	\
3879 		e->u.logio.data[1] = data[1];	\
3880 	}					\
3881 	return qla2x00_post_work(vha, e);	\
3882 }
3883 
3884 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
3885 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
3886 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
3887 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
3888 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
3889 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
3890 
3891 int
3892 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
3893 {
3894 	struct qla_work_evt *e;
3895 
3896 	e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
3897 	if (!e)
3898 		return QLA_FUNCTION_FAILED;
3899 
3900 	e->u.uevent.code = code;
3901 	return qla2x00_post_work(vha, e);
3902 }
3903 
3904 static void
3905 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
3906 {
3907 	char event_string[40];
3908 	char *envp[] = { event_string, NULL };
3909 
3910 	switch (code) {
3911 	case QLA_UEVENT_CODE_FW_DUMP:
3912 		snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
3913 		    vha->host_no);
3914 		break;
3915 	default:
3916 		/* do nothing */
3917 		break;
3918 	}
3919 	kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
3920 }
3921 
3922 int
3923 qlafx00_post_aenfx_work(struct scsi_qla_host *vha,  uint32_t evtcode,
3924 			uint32_t *data, int cnt)
3925 {
3926 	struct qla_work_evt *e;
3927 
3928 	e = qla2x00_alloc_work(vha, QLA_EVT_AENFX);
3929 	if (!e)
3930 		return QLA_FUNCTION_FAILED;
3931 
3932 	e->u.aenfx.evtcode = evtcode;
3933 	e->u.aenfx.count = cnt;
3934 	memcpy(e->u.aenfx.mbx, data, sizeof(*data) * cnt);
3935 	return qla2x00_post_work(vha, e);
3936 }
3937 
3938 void
3939 qla2x00_do_work(struct scsi_qla_host *vha)
3940 {
3941 	struct qla_work_evt *e, *tmp;
3942 	unsigned long flags;
3943 	LIST_HEAD(work);
3944 
3945 	spin_lock_irqsave(&vha->work_lock, flags);
3946 	list_splice_init(&vha->work_list, &work);
3947 	spin_unlock_irqrestore(&vha->work_lock, flags);
3948 
3949 	list_for_each_entry_safe(e, tmp, &work, list) {
3950 		list_del_init(&e->list);
3951 
3952 		switch (e->type) {
3953 		case QLA_EVT_AEN:
3954 			fc_host_post_event(vha->host, fc_get_event_number(),
3955 			    e->u.aen.code, e->u.aen.data);
3956 			break;
3957 		case QLA_EVT_IDC_ACK:
3958 			qla81xx_idc_ack(vha, e->u.idc_ack.mb);
3959 			break;
3960 		case QLA_EVT_ASYNC_LOGIN:
3961 			qla2x00_async_login(vha, e->u.logio.fcport,
3962 			    e->u.logio.data);
3963 			break;
3964 		case QLA_EVT_ASYNC_LOGIN_DONE:
3965 			qla2x00_async_login_done(vha, e->u.logio.fcport,
3966 			    e->u.logio.data);
3967 			break;
3968 		case QLA_EVT_ASYNC_LOGOUT:
3969 			qla2x00_async_logout(vha, e->u.logio.fcport);
3970 			break;
3971 		case QLA_EVT_ASYNC_LOGOUT_DONE:
3972 			qla2x00_async_logout_done(vha, e->u.logio.fcport,
3973 			    e->u.logio.data);
3974 			break;
3975 		case QLA_EVT_ASYNC_ADISC:
3976 			qla2x00_async_adisc(vha, e->u.logio.fcport,
3977 			    e->u.logio.data);
3978 			break;
3979 		case QLA_EVT_ASYNC_ADISC_DONE:
3980 			qla2x00_async_adisc_done(vha, e->u.logio.fcport,
3981 			    e->u.logio.data);
3982 			break;
3983 		case QLA_EVT_UEVENT:
3984 			qla2x00_uevent_emit(vha, e->u.uevent.code);
3985 			break;
3986 		case QLA_EVT_AENFX:
3987 			qlafx00_process_aen(vha, e);
3988 			break;
3989 		}
3990 		if (e->flags & QLA_EVT_FLAG_FREE)
3991 			kfree(e);
3992 
3993 		/* For each work completed decrement vha ref count */
3994 		QLA_VHA_MARK_NOT_BUSY(vha);
3995 	}
3996 }
3997 
3998 /* Relogins all the fcports of a vport
3999  * Context: dpc thread
4000  */
4001 void qla2x00_relogin(struct scsi_qla_host *vha)
4002 {
4003 	fc_port_t       *fcport;
4004 	int status;
4005 	uint16_t        next_loopid = 0;
4006 	struct qla_hw_data *ha = vha->hw;
4007 	uint16_t data[2];
4008 
4009 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4010 	/*
4011 	 * If the port is not ONLINE then try to login
4012 	 * to it if we haven't run out of retries.
4013 	 */
4014 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
4015 		    fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
4016 			fcport->login_retry--;
4017 			if (fcport->flags & FCF_FABRIC_DEVICE) {
4018 				if (fcport->flags & FCF_FCP2_DEVICE)
4019 					ha->isp_ops->fabric_logout(vha,
4020 							fcport->loop_id,
4021 							fcport->d_id.b.domain,
4022 							fcport->d_id.b.area,
4023 							fcport->d_id.b.al_pa);
4024 
4025 				if (fcport->loop_id == FC_NO_LOOP_ID) {
4026 					fcport->loop_id = next_loopid =
4027 					    ha->min_external_loopid;
4028 					status = qla2x00_find_new_loop_id(
4029 					    vha, fcport);
4030 					if (status != QLA_SUCCESS) {
4031 						/* Ran out of IDs to use */
4032 						break;
4033 					}
4034 				}
4035 
4036 				if (IS_ALOGIO_CAPABLE(ha)) {
4037 					fcport->flags |= FCF_ASYNC_SENT;
4038 					data[0] = 0;
4039 					data[1] = QLA_LOGIO_LOGIN_RETRIED;
4040 					status = qla2x00_post_async_login_work(
4041 					    vha, fcport, data);
4042 					if (status == QLA_SUCCESS)
4043 						continue;
4044 					/* Attempt a retry. */
4045 					status = 1;
4046 				} else {
4047 					status = qla2x00_fabric_login(vha,
4048 					    fcport, &next_loopid);
4049 					if (status ==  QLA_SUCCESS) {
4050 						int status2;
4051 						uint8_t opts;
4052 
4053 						opts = 0;
4054 						if (fcport->flags &
4055 						    FCF_FCP2_DEVICE)
4056 							opts |= BIT_1;
4057 						status2 =
4058 						    qla2x00_get_port_database(
4059 							vha, fcport, opts);
4060 						if (status2 != QLA_SUCCESS)
4061 							status = 1;
4062 					}
4063 				}
4064 			} else
4065 				status = qla2x00_local_device_login(vha,
4066 								fcport);
4067 
4068 			if (status == QLA_SUCCESS) {
4069 				fcport->old_loop_id = fcport->loop_id;
4070 
4071 				ql_dbg(ql_dbg_disc, vha, 0x2003,
4072 				    "Port login OK: logged in ID 0x%x.\n",
4073 				    fcport->loop_id);
4074 
4075 				qla2x00_update_fcport(vha, fcport);
4076 
4077 			} else if (status == 1) {
4078 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4079 				/* retry the login again */
4080 				ql_dbg(ql_dbg_disc, vha, 0x2007,
4081 				    "Retrying %d login again loop_id 0x%x.\n",
4082 				    fcport->login_retry, fcport->loop_id);
4083 			} else {
4084 				fcport->login_retry = 0;
4085 			}
4086 
4087 			if (fcport->login_retry == 0 && status != QLA_SUCCESS)
4088 				qla2x00_clear_loop_id(fcport);
4089 		}
4090 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
4091 			break;
4092 	}
4093 }
4094 
4095 /* Schedule work on any of the dpc-workqueues */
4096 void
4097 qla83xx_schedule_work(scsi_qla_host_t *base_vha, int work_code)
4098 {
4099 	struct qla_hw_data *ha = base_vha->hw;
4100 
4101 	switch (work_code) {
4102 	case MBA_IDC_AEN: /* 0x8200 */
4103 		if (ha->dpc_lp_wq)
4104 			queue_work(ha->dpc_lp_wq, &ha->idc_aen);
4105 		break;
4106 
4107 	case QLA83XX_NIC_CORE_RESET: /* 0x1 */
4108 		if (!ha->flags.nic_core_reset_hdlr_active) {
4109 			if (ha->dpc_hp_wq)
4110 				queue_work(ha->dpc_hp_wq, &ha->nic_core_reset);
4111 		} else
4112 			ql_dbg(ql_dbg_p3p, base_vha, 0xb05e,
4113 			    "NIC Core reset is already active. Skip "
4114 			    "scheduling it again.\n");
4115 		break;
4116 	case QLA83XX_IDC_STATE_HANDLER: /* 0x2 */
4117 		if (ha->dpc_hp_wq)
4118 			queue_work(ha->dpc_hp_wq, &ha->idc_state_handler);
4119 		break;
4120 	case QLA83XX_NIC_CORE_UNRECOVERABLE: /* 0x3 */
4121 		if (ha->dpc_hp_wq)
4122 			queue_work(ha->dpc_hp_wq, &ha->nic_core_unrecoverable);
4123 		break;
4124 	default:
4125 		ql_log(ql_log_warn, base_vha, 0xb05f,
4126 		    "Unknow work-code=0x%x.\n", work_code);
4127 	}
4128 
4129 	return;
4130 }
4131 
4132 /* Work: Perform NIC Core Unrecoverable state handling */
4133 void
4134 qla83xx_nic_core_unrecoverable_work(struct work_struct *work)
4135 {
4136 	struct qla_hw_data *ha =
4137 		container_of(work, struct qla_hw_data, nic_core_unrecoverable);
4138 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4139 	uint32_t dev_state = 0;
4140 
4141 	qla83xx_idc_lock(base_vha, 0);
4142 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4143 	qla83xx_reset_ownership(base_vha);
4144 	if (ha->flags.nic_core_reset_owner) {
4145 		ha->flags.nic_core_reset_owner = 0;
4146 		qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4147 		    QLA8XXX_DEV_FAILED);
4148 		ql_log(ql_log_info, base_vha, 0xb060, "HW State: FAILED.\n");
4149 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4150 	}
4151 	qla83xx_idc_unlock(base_vha, 0);
4152 }
4153 
4154 /* Work: Execute IDC state handler */
4155 void
4156 qla83xx_idc_state_handler_work(struct work_struct *work)
4157 {
4158 	struct qla_hw_data *ha =
4159 		container_of(work, struct qla_hw_data, idc_state_handler);
4160 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4161 	uint32_t dev_state = 0;
4162 
4163 	qla83xx_idc_lock(base_vha, 0);
4164 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4165 	if (dev_state == QLA8XXX_DEV_FAILED ||
4166 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT)
4167 		qla83xx_idc_state_handler(base_vha);
4168 	qla83xx_idc_unlock(base_vha, 0);
4169 }
4170 
4171 static int
4172 qla83xx_check_nic_core_fw_alive(scsi_qla_host_t *base_vha)
4173 {
4174 	int rval = QLA_SUCCESS;
4175 	unsigned long heart_beat_wait = jiffies + (1 * HZ);
4176 	uint32_t heart_beat_counter1, heart_beat_counter2;
4177 
4178 	do {
4179 		if (time_after(jiffies, heart_beat_wait)) {
4180 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07c,
4181 			    "Nic Core f/w is not alive.\n");
4182 			rval = QLA_FUNCTION_FAILED;
4183 			break;
4184 		}
4185 
4186 		qla83xx_idc_lock(base_vha, 0);
4187 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4188 		    &heart_beat_counter1);
4189 		qla83xx_idc_unlock(base_vha, 0);
4190 		msleep(100);
4191 		qla83xx_idc_lock(base_vha, 0);
4192 		qla83xx_rd_reg(base_vha, QLA83XX_FW_HEARTBEAT,
4193 		    &heart_beat_counter2);
4194 		qla83xx_idc_unlock(base_vha, 0);
4195 	} while (heart_beat_counter1 == heart_beat_counter2);
4196 
4197 	return rval;
4198 }
4199 
4200 /* Work: Perform NIC Core Reset handling */
4201 void
4202 qla83xx_nic_core_reset_work(struct work_struct *work)
4203 {
4204 	struct qla_hw_data *ha =
4205 		container_of(work, struct qla_hw_data, nic_core_reset);
4206 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4207 	uint32_t dev_state = 0;
4208 
4209 	if (IS_QLA2031(ha)) {
4210 		if (qla2xxx_mctp_dump(base_vha) != QLA_SUCCESS)
4211 			ql_log(ql_log_warn, base_vha, 0xb081,
4212 			    "Failed to dump mctp\n");
4213 		return;
4214 	}
4215 
4216 	if (!ha->flags.nic_core_reset_hdlr_active) {
4217 		if (qla83xx_check_nic_core_fw_alive(base_vha) == QLA_SUCCESS) {
4218 			qla83xx_idc_lock(base_vha, 0);
4219 			qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4220 			    &dev_state);
4221 			qla83xx_idc_unlock(base_vha, 0);
4222 			if (dev_state != QLA8XXX_DEV_NEED_RESET) {
4223 				ql_dbg(ql_dbg_p3p, base_vha, 0xb07a,
4224 				    "Nic Core f/w is alive.\n");
4225 				return;
4226 			}
4227 		}
4228 
4229 		ha->flags.nic_core_reset_hdlr_active = 1;
4230 		if (qla83xx_nic_core_reset(base_vha)) {
4231 			/* NIC Core reset failed. */
4232 			ql_dbg(ql_dbg_p3p, base_vha, 0xb061,
4233 			    "NIC Core reset failed.\n");
4234 		}
4235 		ha->flags.nic_core_reset_hdlr_active = 0;
4236 	}
4237 }
4238 
4239 /* Work: Handle 8200 IDC aens */
4240 void
4241 qla83xx_service_idc_aen(struct work_struct *work)
4242 {
4243 	struct qla_hw_data *ha =
4244 		container_of(work, struct qla_hw_data, idc_aen);
4245 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4246 	uint32_t dev_state, idc_control;
4247 
4248 	qla83xx_idc_lock(base_vha, 0);
4249 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4250 	qla83xx_rd_reg(base_vha, QLA83XX_IDC_CONTROL, &idc_control);
4251 	qla83xx_idc_unlock(base_vha, 0);
4252 	if (dev_state == QLA8XXX_DEV_NEED_RESET) {
4253 		if (idc_control & QLA83XX_IDC_GRACEFUL_RESET) {
4254 			ql_dbg(ql_dbg_p3p, base_vha, 0xb062,
4255 			    "Application requested NIC Core Reset.\n");
4256 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4257 		} else if (qla83xx_check_nic_core_fw_alive(base_vha) ==
4258 		    QLA_SUCCESS) {
4259 			ql_dbg(ql_dbg_p3p, base_vha, 0xb07b,
4260 			    "Other protocol driver requested NIC Core Reset.\n");
4261 			qla83xx_schedule_work(base_vha, QLA83XX_NIC_CORE_RESET);
4262 		}
4263 	} else if (dev_state == QLA8XXX_DEV_FAILED ||
4264 			dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
4265 		qla83xx_schedule_work(base_vha, QLA83XX_IDC_STATE_HANDLER);
4266 	}
4267 }
4268 
4269 static void
4270 qla83xx_wait_logic(void)
4271 {
4272 	int i;
4273 
4274 	/* Yield CPU */
4275 	if (!in_interrupt()) {
4276 		/*
4277 		 * Wait about 200ms before retrying again.
4278 		 * This controls the number of retries for single
4279 		 * lock operation.
4280 		 */
4281 		msleep(100);
4282 		schedule();
4283 	} else {
4284 		for (i = 0; i < 20; i++)
4285 			cpu_relax(); /* This a nop instr on i386 */
4286 	}
4287 }
4288 
4289 static int
4290 qla83xx_force_lock_recovery(scsi_qla_host_t *base_vha)
4291 {
4292 	int rval;
4293 	uint32_t data;
4294 	uint32_t idc_lck_rcvry_stage_mask = 0x3;
4295 	uint32_t idc_lck_rcvry_owner_mask = 0x3c;
4296 	struct qla_hw_data *ha = base_vha->hw;
4297 	ql_dbg(ql_dbg_p3p, base_vha, 0xb086,
4298 	    "Trying force recovery of the IDC lock.\n");
4299 
4300 	rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY, &data);
4301 	if (rval)
4302 		return rval;
4303 
4304 	if ((data & idc_lck_rcvry_stage_mask) > 0) {
4305 		return QLA_SUCCESS;
4306 	} else {
4307 		data = (IDC_LOCK_RECOVERY_STAGE1) | (ha->portnum << 2);
4308 		rval = qla83xx_wr_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4309 		    data);
4310 		if (rval)
4311 			return rval;
4312 
4313 		msleep(200);
4314 
4315 		rval = qla83xx_rd_reg(base_vha, QLA83XX_IDC_LOCK_RECOVERY,
4316 		    &data);
4317 		if (rval)
4318 			return rval;
4319 
4320 		if (((data & idc_lck_rcvry_owner_mask) >> 2) == ha->portnum) {
4321 			data &= (IDC_LOCK_RECOVERY_STAGE2 |
4322 					~(idc_lck_rcvry_stage_mask));
4323 			rval = qla83xx_wr_reg(base_vha,
4324 			    QLA83XX_IDC_LOCK_RECOVERY, data);
4325 			if (rval)
4326 				return rval;
4327 
4328 			/* Forcefully perform IDC UnLock */
4329 			rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK,
4330 			    &data);
4331 			if (rval)
4332 				return rval;
4333 			/* Clear lock-id by setting 0xff */
4334 			rval = qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4335 			    0xff);
4336 			if (rval)
4337 				return rval;
4338 			/* Clear lock-recovery by setting 0x0 */
4339 			rval = qla83xx_wr_reg(base_vha,
4340 			    QLA83XX_IDC_LOCK_RECOVERY, 0x0);
4341 			if (rval)
4342 				return rval;
4343 		} else
4344 			return QLA_SUCCESS;
4345 	}
4346 
4347 	return rval;
4348 }
4349 
4350 static int
4351 qla83xx_idc_lock_recovery(scsi_qla_host_t *base_vha)
4352 {
4353 	int rval = QLA_SUCCESS;
4354 	uint32_t o_drv_lockid, n_drv_lockid;
4355 	unsigned long lock_recovery_timeout;
4356 
4357 	lock_recovery_timeout = jiffies + QLA83XX_MAX_LOCK_RECOVERY_WAIT;
4358 retry_lockid:
4359 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &o_drv_lockid);
4360 	if (rval)
4361 		goto exit;
4362 
4363 	/* MAX wait time before forcing IDC Lock recovery = 2 secs */
4364 	if (time_after_eq(jiffies, lock_recovery_timeout)) {
4365 		if (qla83xx_force_lock_recovery(base_vha) == QLA_SUCCESS)
4366 			return QLA_SUCCESS;
4367 		else
4368 			return QLA_FUNCTION_FAILED;
4369 	}
4370 
4371 	rval = qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &n_drv_lockid);
4372 	if (rval)
4373 		goto exit;
4374 
4375 	if (o_drv_lockid == n_drv_lockid) {
4376 		qla83xx_wait_logic();
4377 		goto retry_lockid;
4378 	} else
4379 		return QLA_SUCCESS;
4380 
4381 exit:
4382 	return rval;
4383 }
4384 
4385 void
4386 qla83xx_idc_lock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4387 {
4388 	uint16_t options = (requester_id << 15) | BIT_6;
4389 	uint32_t data;
4390 	uint32_t lock_owner;
4391 	struct qla_hw_data *ha = base_vha->hw;
4392 
4393 	/* IDC-lock implementation using driver-lock/lock-id remote registers */
4394 retry_lock:
4395 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCK, &data)
4396 	    == QLA_SUCCESS) {
4397 		if (data) {
4398 			/* Setting lock-id to our function-number */
4399 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4400 			    ha->portnum);
4401 		} else {
4402 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID,
4403 			    &lock_owner);
4404 			ql_dbg(ql_dbg_p3p, base_vha, 0xb063,
4405 			    "Failed to acquire IDC lock, acquired by %d, "
4406 			    "retrying...\n", lock_owner);
4407 
4408 			/* Retry/Perform IDC-Lock recovery */
4409 			if (qla83xx_idc_lock_recovery(base_vha)
4410 			    == QLA_SUCCESS) {
4411 				qla83xx_wait_logic();
4412 				goto retry_lock;
4413 			} else
4414 				ql_log(ql_log_warn, base_vha, 0xb075,
4415 				    "IDC Lock recovery FAILED.\n");
4416 		}
4417 
4418 	}
4419 
4420 	return;
4421 
4422 	/* XXX: IDC-lock implementation using access-control mbx */
4423 retry_lock2:
4424 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4425 		ql_dbg(ql_dbg_p3p, base_vha, 0xb072,
4426 		    "Failed to acquire IDC lock. retrying...\n");
4427 		/* Retry/Perform IDC-Lock recovery */
4428 		if (qla83xx_idc_lock_recovery(base_vha) == QLA_SUCCESS) {
4429 			qla83xx_wait_logic();
4430 			goto retry_lock2;
4431 		} else
4432 			ql_log(ql_log_warn, base_vha, 0xb076,
4433 			    "IDC Lock recovery FAILED.\n");
4434 	}
4435 
4436 	return;
4437 }
4438 
4439 void
4440 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
4441 {
4442 	uint16_t options = (requester_id << 15) | BIT_7, retry;
4443 	uint32_t data;
4444 	struct qla_hw_data *ha = base_vha->hw;
4445 
4446 	/* IDC-unlock implementation using driver-unlock/lock-id
4447 	 * remote registers
4448 	 */
4449 	retry = 0;
4450 retry_unlock:
4451 	if (qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_LOCKID, &data)
4452 	    == QLA_SUCCESS) {
4453 		if (data == ha->portnum) {
4454 			qla83xx_rd_reg(base_vha, QLA83XX_DRIVER_UNLOCK, &data);
4455 			/* Clearing lock-id by setting 0xff */
4456 			qla83xx_wr_reg(base_vha, QLA83XX_DRIVER_LOCKID, 0xff);
4457 		} else if (retry < 10) {
4458 			/* SV: XXX: IDC unlock retrying needed here? */
4459 
4460 			/* Retry for IDC-unlock */
4461 			qla83xx_wait_logic();
4462 			retry++;
4463 			ql_dbg(ql_dbg_p3p, base_vha, 0xb064,
4464 			    "Failed to release IDC lock, retyring=%d\n", retry);
4465 			goto retry_unlock;
4466 		}
4467 	} else if (retry < 10) {
4468 		/* Retry for IDC-unlock */
4469 		qla83xx_wait_logic();
4470 		retry++;
4471 		ql_dbg(ql_dbg_p3p, base_vha, 0xb065,
4472 		    "Failed to read drv-lockid, retyring=%d\n", retry);
4473 		goto retry_unlock;
4474 	}
4475 
4476 	return;
4477 
4478 	/* XXX: IDC-unlock implementation using access-control mbx */
4479 	retry = 0;
4480 retry_unlock2:
4481 	if (qla83xx_access_control(base_vha, options, 0, 0, NULL)) {
4482 		if (retry < 10) {
4483 			/* Retry for IDC-unlock */
4484 			qla83xx_wait_logic();
4485 			retry++;
4486 			ql_dbg(ql_dbg_p3p, base_vha, 0xb066,
4487 			    "Failed to release IDC lock, retyring=%d\n", retry);
4488 			goto retry_unlock2;
4489 		}
4490 	}
4491 
4492 	return;
4493 }
4494 
4495 int
4496 __qla83xx_set_drv_presence(scsi_qla_host_t *vha)
4497 {
4498 	int rval = QLA_SUCCESS;
4499 	struct qla_hw_data *ha = vha->hw;
4500 	uint32_t drv_presence;
4501 
4502 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4503 	if (rval == QLA_SUCCESS) {
4504 		drv_presence |= (1 << ha->portnum);
4505 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4506 		    drv_presence);
4507 	}
4508 
4509 	return rval;
4510 }
4511 
4512 int
4513 qla83xx_set_drv_presence(scsi_qla_host_t *vha)
4514 {
4515 	int rval = QLA_SUCCESS;
4516 
4517 	qla83xx_idc_lock(vha, 0);
4518 	rval = __qla83xx_set_drv_presence(vha);
4519 	qla83xx_idc_unlock(vha, 0);
4520 
4521 	return rval;
4522 }
4523 
4524 int
4525 __qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
4526 {
4527 	int rval = QLA_SUCCESS;
4528 	struct qla_hw_data *ha = vha->hw;
4529 	uint32_t drv_presence;
4530 
4531 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4532 	if (rval == QLA_SUCCESS) {
4533 		drv_presence &= ~(1 << ha->portnum);
4534 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4535 		    drv_presence);
4536 	}
4537 
4538 	return rval;
4539 }
4540 
4541 int
4542 qla83xx_clear_drv_presence(scsi_qla_host_t *vha)
4543 {
4544 	int rval = QLA_SUCCESS;
4545 
4546 	qla83xx_idc_lock(vha, 0);
4547 	rval = __qla83xx_clear_drv_presence(vha);
4548 	qla83xx_idc_unlock(vha, 0);
4549 
4550 	return rval;
4551 }
4552 
4553 static void
4554 qla83xx_need_reset_handler(scsi_qla_host_t *vha)
4555 {
4556 	struct qla_hw_data *ha = vha->hw;
4557 	uint32_t drv_ack, drv_presence;
4558 	unsigned long ack_timeout;
4559 
4560 	/* Wait for IDC ACK from all functions (DRV-ACK == DRV-PRESENCE) */
4561 	ack_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
4562 	while (1) {
4563 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4564 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4565 		if ((drv_ack & drv_presence) == drv_presence)
4566 			break;
4567 
4568 		if (time_after_eq(jiffies, ack_timeout)) {
4569 			ql_log(ql_log_warn, vha, 0xb067,
4570 			    "RESET ACK TIMEOUT! drv_presence=0x%x "
4571 			    "drv_ack=0x%x\n", drv_presence, drv_ack);
4572 			/*
4573 			 * The function(s) which did not ack in time are forced
4574 			 * to withdraw any further participation in the IDC
4575 			 * reset.
4576 			 */
4577 			if (drv_ack != drv_presence)
4578 				qla83xx_wr_reg(vha, QLA83XX_IDC_DRV_PRESENCE,
4579 				    drv_ack);
4580 			break;
4581 		}
4582 
4583 		qla83xx_idc_unlock(vha, 0);
4584 		msleep(1000);
4585 		qla83xx_idc_lock(vha, 0);
4586 	}
4587 
4588 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_COLD);
4589 	ql_log(ql_log_info, vha, 0xb068, "HW State: COLD/RE-INIT.\n");
4590 }
4591 
4592 static int
4593 qla83xx_device_bootstrap(scsi_qla_host_t *vha)
4594 {
4595 	int rval = QLA_SUCCESS;
4596 	uint32_t idc_control;
4597 
4598 	qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
4599 	ql_log(ql_log_info, vha, 0xb069, "HW State: INITIALIZING.\n");
4600 
4601 	/* Clearing IDC-Control Graceful-Reset Bit before resetting f/w */
4602 	__qla83xx_get_idc_control(vha, &idc_control);
4603 	idc_control &= ~QLA83XX_IDC_GRACEFUL_RESET;
4604 	__qla83xx_set_idc_control(vha, 0);
4605 
4606 	qla83xx_idc_unlock(vha, 0);
4607 	rval = qla83xx_restart_nic_firmware(vha);
4608 	qla83xx_idc_lock(vha, 0);
4609 
4610 	if (rval != QLA_SUCCESS) {
4611 		ql_log(ql_log_fatal, vha, 0xb06a,
4612 		    "Failed to restart NIC f/w.\n");
4613 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_FAILED);
4614 		ql_log(ql_log_info, vha, 0xb06b, "HW State: FAILED.\n");
4615 	} else {
4616 		ql_dbg(ql_dbg_p3p, vha, 0xb06c,
4617 		    "Success in restarting nic f/w.\n");
4618 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE, QLA8XXX_DEV_READY);
4619 		ql_log(ql_log_info, vha, 0xb06d, "HW State: READY.\n");
4620 	}
4621 
4622 	return rval;
4623 }
4624 
4625 /* Assumes idc_lock always held on entry */
4626 int
4627 qla83xx_idc_state_handler(scsi_qla_host_t *base_vha)
4628 {
4629 	struct qla_hw_data *ha = base_vha->hw;
4630 	int rval = QLA_SUCCESS;
4631 	unsigned long dev_init_timeout;
4632 	uint32_t dev_state;
4633 
4634 	/* Wait for MAX-INIT-TIMEOUT for the device to go ready */
4635 	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
4636 
4637 	while (1) {
4638 
4639 		if (time_after_eq(jiffies, dev_init_timeout)) {
4640 			ql_log(ql_log_warn, base_vha, 0xb06e,
4641 			    "Initialization TIMEOUT!\n");
4642 			/* Init timeout. Disable further NIC Core
4643 			 * communication.
4644 			 */
4645 			qla83xx_wr_reg(base_vha, QLA83XX_IDC_DEV_STATE,
4646 				QLA8XXX_DEV_FAILED);
4647 			ql_log(ql_log_info, base_vha, 0xb06f,
4648 			    "HW State: FAILED.\n");
4649 		}
4650 
4651 		qla83xx_rd_reg(base_vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4652 		switch (dev_state) {
4653 		case QLA8XXX_DEV_READY:
4654 			if (ha->flags.nic_core_reset_owner)
4655 				qla83xx_idc_audit(base_vha,
4656 				    IDC_AUDIT_COMPLETION);
4657 			ha->flags.nic_core_reset_owner = 0;
4658 			ql_dbg(ql_dbg_p3p, base_vha, 0xb070,
4659 			    "Reset_owner reset by 0x%x.\n",
4660 			    ha->portnum);
4661 			goto exit;
4662 		case QLA8XXX_DEV_COLD:
4663 			if (ha->flags.nic_core_reset_owner)
4664 				rval = qla83xx_device_bootstrap(base_vha);
4665 			else {
4666 			/* Wait for AEN to change device-state */
4667 				qla83xx_idc_unlock(base_vha, 0);
4668 				msleep(1000);
4669 				qla83xx_idc_lock(base_vha, 0);
4670 			}
4671 			break;
4672 		case QLA8XXX_DEV_INITIALIZING:
4673 			/* Wait for AEN to change device-state */
4674 			qla83xx_idc_unlock(base_vha, 0);
4675 			msleep(1000);
4676 			qla83xx_idc_lock(base_vha, 0);
4677 			break;
4678 		case QLA8XXX_DEV_NEED_RESET:
4679 			if (!ql2xdontresethba && ha->flags.nic_core_reset_owner)
4680 				qla83xx_need_reset_handler(base_vha);
4681 			else {
4682 				/* Wait for AEN to change device-state */
4683 				qla83xx_idc_unlock(base_vha, 0);
4684 				msleep(1000);
4685 				qla83xx_idc_lock(base_vha, 0);
4686 			}
4687 			/* reset timeout value after need reset handler */
4688 			dev_init_timeout = jiffies +
4689 			    (ha->fcoe_dev_init_timeout * HZ);
4690 			break;
4691 		case QLA8XXX_DEV_NEED_QUIESCENT:
4692 			/* XXX: DEBUG for now */
4693 			qla83xx_idc_unlock(base_vha, 0);
4694 			msleep(1000);
4695 			qla83xx_idc_lock(base_vha, 0);
4696 			break;
4697 		case QLA8XXX_DEV_QUIESCENT:
4698 			/* XXX: DEBUG for now */
4699 			if (ha->flags.quiesce_owner)
4700 				goto exit;
4701 
4702 			qla83xx_idc_unlock(base_vha, 0);
4703 			msleep(1000);
4704 			qla83xx_idc_lock(base_vha, 0);
4705 			dev_init_timeout = jiffies +
4706 			    (ha->fcoe_dev_init_timeout * HZ);
4707 			break;
4708 		case QLA8XXX_DEV_FAILED:
4709 			if (ha->flags.nic_core_reset_owner)
4710 				qla83xx_idc_audit(base_vha,
4711 				    IDC_AUDIT_COMPLETION);
4712 			ha->flags.nic_core_reset_owner = 0;
4713 			__qla83xx_clear_drv_presence(base_vha);
4714 			qla83xx_idc_unlock(base_vha, 0);
4715 			qla8xxx_dev_failed_handler(base_vha);
4716 			rval = QLA_FUNCTION_FAILED;
4717 			qla83xx_idc_lock(base_vha, 0);
4718 			goto exit;
4719 		case QLA8XXX_BAD_VALUE:
4720 			qla83xx_idc_unlock(base_vha, 0);
4721 			msleep(1000);
4722 			qla83xx_idc_lock(base_vha, 0);
4723 			break;
4724 		default:
4725 			ql_log(ql_log_warn, base_vha, 0xb071,
4726 			    "Unknow Device State: %x.\n", dev_state);
4727 			qla83xx_idc_unlock(base_vha, 0);
4728 			qla8xxx_dev_failed_handler(base_vha);
4729 			rval = QLA_FUNCTION_FAILED;
4730 			qla83xx_idc_lock(base_vha, 0);
4731 			goto exit;
4732 		}
4733 	}
4734 
4735 exit:
4736 	return rval;
4737 }
4738 
4739 /**************************************************************************
4740 * qla2x00_do_dpc
4741 *   This kernel thread is a task that is schedule by the interrupt handler
4742 *   to perform the background processing for interrupts.
4743 *
4744 * Notes:
4745 * This task always run in the context of a kernel thread.  It
4746 * is kick-off by the driver's detect code and starts up
4747 * up one per adapter. It immediately goes to sleep and waits for
4748 * some fibre event.  When either the interrupt handler or
4749 * the timer routine detects a event it will one of the task
4750 * bits then wake us up.
4751 **************************************************************************/
4752 static int
4753 qla2x00_do_dpc(void *data)
4754 {
4755 	int		rval;
4756 	scsi_qla_host_t *base_vha;
4757 	struct qla_hw_data *ha;
4758 
4759 	ha = (struct qla_hw_data *)data;
4760 	base_vha = pci_get_drvdata(ha->pdev);
4761 
4762 	set_user_nice(current, -20);
4763 
4764 	set_current_state(TASK_INTERRUPTIBLE);
4765 	while (!kthread_should_stop()) {
4766 		ql_dbg(ql_dbg_dpc, base_vha, 0x4000,
4767 		    "DPC handler sleeping.\n");
4768 
4769 		schedule();
4770 		__set_current_state(TASK_RUNNING);
4771 
4772 		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
4773 			goto end_loop;
4774 
4775 		if (ha->flags.eeh_busy) {
4776 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
4777 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
4778 			goto end_loop;
4779 		}
4780 
4781 		ha->dpc_active = 1;
4782 
4783 		ql_dbg(ql_dbg_dpc + ql_dbg_verbose, base_vha, 0x4001,
4784 		    "DPC handler waking up, dpc_flags=0x%lx.\n",
4785 		    base_vha->dpc_flags);
4786 
4787 		qla2x00_do_work(base_vha);
4788 
4789 		if (IS_P3P_TYPE(ha)) {
4790 			if (IS_QLA8044(ha)) {
4791 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
4792 					&base_vha->dpc_flags)) {
4793 					qla8044_idc_lock(ha);
4794 					qla8044_wr_direct(base_vha,
4795 						QLA8044_CRB_DEV_STATE_INDEX,
4796 						QLA8XXX_DEV_FAILED);
4797 					qla8044_idc_unlock(ha);
4798 					ql_log(ql_log_info, base_vha, 0x4004,
4799 						"HW State: FAILED.\n");
4800 					qla8044_device_state_handler(base_vha);
4801 					continue;
4802 				}
4803 
4804 			} else {
4805 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
4806 					&base_vha->dpc_flags)) {
4807 					qla82xx_idc_lock(ha);
4808 					qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
4809 						QLA8XXX_DEV_FAILED);
4810 					qla82xx_idc_unlock(ha);
4811 					ql_log(ql_log_info, base_vha, 0x0151,
4812 						"HW State: FAILED.\n");
4813 					qla82xx_device_state_handler(base_vha);
4814 					continue;
4815 				}
4816 			}
4817 
4818 			if (test_and_clear_bit(FCOE_CTX_RESET_NEEDED,
4819 				&base_vha->dpc_flags)) {
4820 
4821 				ql_dbg(ql_dbg_dpc, base_vha, 0x4005,
4822 				    "FCoE context reset scheduled.\n");
4823 				if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
4824 					&base_vha->dpc_flags))) {
4825 					if (qla82xx_fcoe_ctx_reset(base_vha)) {
4826 						/* FCoE-ctx reset failed.
4827 						 * Escalate to chip-reset
4828 						 */
4829 						set_bit(ISP_ABORT_NEEDED,
4830 							&base_vha->dpc_flags);
4831 					}
4832 					clear_bit(ABORT_ISP_ACTIVE,
4833 						&base_vha->dpc_flags);
4834 				}
4835 
4836 				ql_dbg(ql_dbg_dpc, base_vha, 0x4006,
4837 				    "FCoE context reset end.\n");
4838 			}
4839 		} else if (IS_QLAFX00(ha)) {
4840 			if (test_and_clear_bit(ISP_UNRECOVERABLE,
4841 				&base_vha->dpc_flags)) {
4842 				ql_dbg(ql_dbg_dpc, base_vha, 0x4020,
4843 				    "Firmware Reset Recovery\n");
4844 				if (qlafx00_reset_initialize(base_vha)) {
4845 					/* Failed. Abort isp later. */
4846 					if (!test_bit(UNLOADING,
4847 					    &base_vha->dpc_flags))
4848 						set_bit(ISP_UNRECOVERABLE,
4849 						    &base_vha->dpc_flags);
4850 						ql_dbg(ql_dbg_dpc, base_vha,
4851 						    0x4021,
4852 						    "Reset Recovery Failed\n");
4853 				}
4854 			}
4855 
4856 			if (test_and_clear_bit(FX00_TARGET_SCAN,
4857 				&base_vha->dpc_flags)) {
4858 				ql_dbg(ql_dbg_dpc, base_vha, 0x4022,
4859 				    "ISPFx00 Target Scan scheduled\n");
4860 				if (qlafx00_rescan_isp(base_vha)) {
4861 					if (!test_bit(UNLOADING,
4862 					    &base_vha->dpc_flags))
4863 						set_bit(ISP_UNRECOVERABLE,
4864 						    &base_vha->dpc_flags);
4865 					ql_dbg(ql_dbg_dpc, base_vha, 0x401e,
4866 					    "ISPFx00 Target Scan Failed\n");
4867 				}
4868 				ql_dbg(ql_dbg_dpc, base_vha, 0x401f,
4869 				    "ISPFx00 Target Scan End\n");
4870 			}
4871 		}
4872 
4873 		if (test_and_clear_bit(ISP_ABORT_NEEDED,
4874 						&base_vha->dpc_flags)) {
4875 
4876 			ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
4877 			    "ISP abort scheduled.\n");
4878 			if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
4879 			    &base_vha->dpc_flags))) {
4880 
4881 				if (ha->isp_ops->abort_isp(base_vha)) {
4882 					/* failed. retry later */
4883 					set_bit(ISP_ABORT_NEEDED,
4884 					    &base_vha->dpc_flags);
4885 				}
4886 				clear_bit(ABORT_ISP_ACTIVE,
4887 						&base_vha->dpc_flags);
4888 			}
4889 
4890 			ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
4891 			    "ISP abort end.\n");
4892 		}
4893 
4894 		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
4895 		    &base_vha->dpc_flags)) {
4896 			qla2x00_update_fcports(base_vha);
4897 		}
4898 
4899 		if (test_bit(SCR_PENDING, &base_vha->dpc_flags)) {
4900 			int ret;
4901 			ret = qla2x00_send_change_request(base_vha, 0x3, 0);
4902 			if (ret != QLA_SUCCESS)
4903 				ql_log(ql_log_warn, base_vha, 0x121,
4904 				    "Failed to enable receiving of RSCN "
4905 				    "requests: 0x%x.\n", ret);
4906 			clear_bit(SCR_PENDING, &base_vha->dpc_flags);
4907 		}
4908 
4909 		if (IS_QLAFX00(ha))
4910 			goto loop_resync_check;
4911 
4912 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
4913 			ql_dbg(ql_dbg_dpc, base_vha, 0x4009,
4914 			    "Quiescence mode scheduled.\n");
4915 			if (IS_P3P_TYPE(ha)) {
4916 				if (IS_QLA82XX(ha))
4917 					qla82xx_device_state_handler(base_vha);
4918 				if (IS_QLA8044(ha))
4919 					qla8044_device_state_handler(base_vha);
4920 				clear_bit(ISP_QUIESCE_NEEDED,
4921 				    &base_vha->dpc_flags);
4922 				if (!ha->flags.quiesce_owner) {
4923 					qla2x00_perform_loop_resync(base_vha);
4924 					if (IS_QLA82XX(ha)) {
4925 						qla82xx_idc_lock(ha);
4926 						qla82xx_clear_qsnt_ready(
4927 						    base_vha);
4928 						qla82xx_idc_unlock(ha);
4929 					} else if (IS_QLA8044(ha)) {
4930 						qla8044_idc_lock(ha);
4931 						qla8044_clear_qsnt_ready(
4932 						    base_vha);
4933 						qla8044_idc_unlock(ha);
4934 					}
4935 				}
4936 			} else {
4937 				clear_bit(ISP_QUIESCE_NEEDED,
4938 				    &base_vha->dpc_flags);
4939 				qla2x00_quiesce_io(base_vha);
4940 			}
4941 			ql_dbg(ql_dbg_dpc, base_vha, 0x400a,
4942 			    "Quiescence mode end.\n");
4943 		}
4944 
4945 		if (test_and_clear_bit(RESET_MARKER_NEEDED,
4946 				&base_vha->dpc_flags) &&
4947 		    (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
4948 
4949 			ql_dbg(ql_dbg_dpc, base_vha, 0x400b,
4950 			    "Reset marker scheduled.\n");
4951 			qla2x00_rst_aen(base_vha);
4952 			clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
4953 			ql_dbg(ql_dbg_dpc, base_vha, 0x400c,
4954 			    "Reset marker end.\n");
4955 		}
4956 
4957 		/* Retry each device up to login retry count */
4958 		if ((test_and_clear_bit(RELOGIN_NEEDED,
4959 						&base_vha->dpc_flags)) &&
4960 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
4961 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
4962 
4963 			ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
4964 			    "Relogin scheduled.\n");
4965 			qla2x00_relogin(base_vha);
4966 			ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
4967 			    "Relogin end.\n");
4968 		}
4969 loop_resync_check:
4970 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
4971 		    &base_vha->dpc_flags)) {
4972 
4973 			ql_dbg(ql_dbg_dpc, base_vha, 0x400f,
4974 			    "Loop resync scheduled.\n");
4975 
4976 			if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
4977 			    &base_vha->dpc_flags))) {
4978 
4979 				rval = qla2x00_loop_resync(base_vha);
4980 
4981 				clear_bit(LOOP_RESYNC_ACTIVE,
4982 						&base_vha->dpc_flags);
4983 			}
4984 
4985 			ql_dbg(ql_dbg_dpc, base_vha, 0x4010,
4986 			    "Loop resync end.\n");
4987 		}
4988 
4989 		if (IS_QLAFX00(ha))
4990 			goto intr_on_check;
4991 
4992 		if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
4993 		    atomic_read(&base_vha->loop_state) == LOOP_READY) {
4994 			clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
4995 			qla2xxx_flash_npiv_conf(base_vha);
4996 		}
4997 
4998 		if (test_and_clear_bit(HOST_RAMP_DOWN_QUEUE_DEPTH,
4999 		    &base_vha->dpc_flags)) {
5000 			/* Prevents simultaneous ramp up and down */
5001 			clear_bit(HOST_RAMP_UP_QUEUE_DEPTH,
5002 			    &base_vha->dpc_flags);
5003 			qla2x00_host_ramp_down_queuedepth(base_vha);
5004 		}
5005 
5006 		if (test_and_clear_bit(HOST_RAMP_UP_QUEUE_DEPTH,
5007 		    &base_vha->dpc_flags))
5008 			qla2x00_host_ramp_up_queuedepth(base_vha);
5009 intr_on_check:
5010 		if (!ha->interrupts_on)
5011 			ha->isp_ops->enable_intrs(ha);
5012 
5013 		if (test_and_clear_bit(BEACON_BLINK_NEEDED,
5014 					&base_vha->dpc_flags))
5015 			ha->isp_ops->beacon_blink(base_vha);
5016 
5017 		if (!IS_QLAFX00(ha))
5018 			qla2x00_do_dpc_all_vps(base_vha);
5019 
5020 		ha->dpc_active = 0;
5021 end_loop:
5022 		set_current_state(TASK_INTERRUPTIBLE);
5023 	} /* End of while(1) */
5024 	__set_current_state(TASK_RUNNING);
5025 
5026 	ql_dbg(ql_dbg_dpc, base_vha, 0x4011,
5027 	    "DPC handler exiting.\n");
5028 
5029 	/*
5030 	 * Make sure that nobody tries to wake us up again.
5031 	 */
5032 	ha->dpc_active = 0;
5033 
5034 	/* Cleanup any residual CTX SRBs. */
5035 	qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
5036 
5037 	return 0;
5038 }
5039 
5040 void
5041 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
5042 {
5043 	struct qla_hw_data *ha = vha->hw;
5044 	struct task_struct *t = ha->dpc_thread;
5045 
5046 	if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
5047 		wake_up_process(t);
5048 }
5049 
5050 /*
5051 *  qla2x00_rst_aen
5052 *      Processes asynchronous reset.
5053 *
5054 * Input:
5055 *      ha  = adapter block pointer.
5056 */
5057 static void
5058 qla2x00_rst_aen(scsi_qla_host_t *vha)
5059 {
5060 	if (vha->flags.online && !vha->flags.reset_active &&
5061 	    !atomic_read(&vha->loop_down_timer) &&
5062 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
5063 		do {
5064 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5065 
5066 			/*
5067 			 * Issue marker command only when we are going to start
5068 			 * the I/O.
5069 			 */
5070 			vha->marker_needed = 1;
5071 		} while (!atomic_read(&vha->loop_down_timer) &&
5072 		    (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
5073 	}
5074 }
5075 
5076 /**************************************************************************
5077 *   qla2x00_timer
5078 *
5079 * Description:
5080 *   One second timer
5081 *
5082 * Context: Interrupt
5083 ***************************************************************************/
5084 void
5085 qla2x00_timer(scsi_qla_host_t *vha)
5086 {
5087 	unsigned long	cpu_flags = 0;
5088 	int		start_dpc = 0;
5089 	int		index;
5090 	srb_t		*sp;
5091 	uint16_t        w;
5092 	struct qla_hw_data *ha = vha->hw;
5093 	struct req_que *req;
5094 
5095 	if (ha->flags.eeh_busy) {
5096 		ql_dbg(ql_dbg_timer, vha, 0x6000,
5097 		    "EEH = %d, restarting timer.\n",
5098 		    ha->flags.eeh_busy);
5099 		qla2x00_restart_timer(vha, WATCH_INTERVAL);
5100 		return;
5101 	}
5102 
5103 	/* Hardware read to raise pending EEH errors during mailbox waits. */
5104 	if (!pci_channel_offline(ha->pdev))
5105 		pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
5106 
5107 	/* Make sure qla82xx_watchdog is run only for physical port */
5108 	if (!vha->vp_idx && IS_P3P_TYPE(ha)) {
5109 		if (test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags))
5110 			start_dpc++;
5111 		if (IS_QLA82XX(ha))
5112 			qla82xx_watchdog(vha);
5113 		else if (IS_QLA8044(ha))
5114 			qla8044_watchdog(vha);
5115 	}
5116 
5117 	if (!vha->vp_idx && IS_QLAFX00(ha))
5118 		qlafx00_timer_routine(vha);
5119 
5120 	/* Loop down handler. */
5121 	if (atomic_read(&vha->loop_down_timer) > 0 &&
5122 	    !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
5123 	    !(test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))
5124 		&& vha->flags.online) {
5125 
5126 		if (atomic_read(&vha->loop_down_timer) ==
5127 		    vha->loop_down_abort_time) {
5128 
5129 			ql_log(ql_log_info, vha, 0x6008,
5130 			    "Loop down - aborting the queues before time expires.\n");
5131 
5132 			if (!IS_QLA2100(ha) && vha->link_down_timeout)
5133 				atomic_set(&vha->loop_state, LOOP_DEAD);
5134 
5135 			/*
5136 			 * Schedule an ISP abort to return any FCP2-device
5137 			 * commands.
5138 			 */
5139 			/* NPIV - scan physical port only */
5140 			if (!vha->vp_idx) {
5141 				spin_lock_irqsave(&ha->hardware_lock,
5142 				    cpu_flags);
5143 				req = ha->req_q_map[0];
5144 				for (index = 1;
5145 				    index < req->num_outstanding_cmds;
5146 				    index++) {
5147 					fc_port_t *sfcp;
5148 
5149 					sp = req->outstanding_cmds[index];
5150 					if (!sp)
5151 						continue;
5152 					if (sp->type != SRB_SCSI_CMD)
5153 						continue;
5154 					sfcp = sp->fcport;
5155 					if (!(sfcp->flags & FCF_FCP2_DEVICE))
5156 						continue;
5157 
5158 					if (IS_QLA82XX(ha))
5159 						set_bit(FCOE_CTX_RESET_NEEDED,
5160 							&vha->dpc_flags);
5161 					else
5162 						set_bit(ISP_ABORT_NEEDED,
5163 							&vha->dpc_flags);
5164 					break;
5165 				}
5166 				spin_unlock_irqrestore(&ha->hardware_lock,
5167 								cpu_flags);
5168 			}
5169 			start_dpc++;
5170 		}
5171 
5172 		/* if the loop has been down for 4 minutes, reinit adapter */
5173 		if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
5174 			if (!(vha->device_flags & DFLG_NO_CABLE)) {
5175 				ql_log(ql_log_warn, vha, 0x6009,
5176 				    "Loop down - aborting ISP.\n");
5177 
5178 				if (IS_QLA82XX(ha))
5179 					set_bit(FCOE_CTX_RESET_NEEDED,
5180 						&vha->dpc_flags);
5181 				else
5182 					set_bit(ISP_ABORT_NEEDED,
5183 						&vha->dpc_flags);
5184 			}
5185 		}
5186 		ql_dbg(ql_dbg_timer, vha, 0x600a,
5187 		    "Loop down - seconds remaining %d.\n",
5188 		    atomic_read(&vha->loop_down_timer));
5189 	}
5190 
5191 	/* Check if beacon LED needs to be blinked for physical host only */
5192 	if (!vha->vp_idx && (ha->beacon_blink_led == 1)) {
5193 		/* There is no beacon_blink function for ISP82xx */
5194 		if (!IS_P3P_TYPE(ha)) {
5195 			set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
5196 			start_dpc++;
5197 		}
5198 	}
5199 
5200 	/* Process any deferred work. */
5201 	if (!list_empty(&vha->work_list))
5202 		start_dpc++;
5203 
5204 	/* Schedule the DPC routine if needed */
5205 	if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
5206 	    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
5207 	    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
5208 	    start_dpc ||
5209 	    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
5210 	    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
5211 	    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) ||
5212 	    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
5213 	    test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
5214 	    test_bit(RELOGIN_NEEDED, &vha->dpc_flags) ||
5215 	    test_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags) ||
5216 	    test_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags))) {
5217 		ql_dbg(ql_dbg_timer, vha, 0x600b,
5218 		    "isp_abort_needed=%d loop_resync_needed=%d "
5219 		    "fcport_update_needed=%d start_dpc=%d "
5220 		    "reset_marker_needed=%d",
5221 		    test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags),
5222 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags),
5223 		    test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags),
5224 		    start_dpc,
5225 		    test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags));
5226 		ql_dbg(ql_dbg_timer, vha, 0x600c,
5227 		    "beacon_blink_needed=%d isp_unrecoverable=%d "
5228 		    "fcoe_ctx_reset_needed=%d vp_dpc_needed=%d "
5229 		    "relogin_needed=%d, host_ramp_down_needed=%d "
5230 		    "host_ramp_up_needed=%d.\n",
5231 		    test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags),
5232 		    test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags),
5233 		    test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags),
5234 		    test_bit(VP_DPC_NEEDED, &vha->dpc_flags),
5235 		    test_bit(RELOGIN_NEEDED, &vha->dpc_flags),
5236 		    test_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags),
5237 		    test_bit(HOST_RAMP_DOWN_QUEUE_DEPTH, &vha->dpc_flags));
5238 		qla2xxx_wake_dpc(vha);
5239 	}
5240 
5241 	qla2x00_restart_timer(vha, WATCH_INTERVAL);
5242 }
5243 
5244 /* Firmware interface routines. */
5245 
5246 #define FW_BLOBS	10
5247 #define FW_ISP21XX	0
5248 #define FW_ISP22XX	1
5249 #define FW_ISP2300	2
5250 #define FW_ISP2322	3
5251 #define FW_ISP24XX	4
5252 #define FW_ISP25XX	5
5253 #define FW_ISP81XX	6
5254 #define FW_ISP82XX	7
5255 #define FW_ISP2031	8
5256 #define FW_ISP8031	9
5257 
5258 #define FW_FILE_ISP21XX	"ql2100_fw.bin"
5259 #define FW_FILE_ISP22XX	"ql2200_fw.bin"
5260 #define FW_FILE_ISP2300	"ql2300_fw.bin"
5261 #define FW_FILE_ISP2322	"ql2322_fw.bin"
5262 #define FW_FILE_ISP24XX	"ql2400_fw.bin"
5263 #define FW_FILE_ISP25XX	"ql2500_fw.bin"
5264 #define FW_FILE_ISP81XX	"ql8100_fw.bin"
5265 #define FW_FILE_ISP82XX	"ql8200_fw.bin"
5266 #define FW_FILE_ISP2031	"ql2600_fw.bin"
5267 #define FW_FILE_ISP8031	"ql8300_fw.bin"
5268 
5269 static DEFINE_MUTEX(qla_fw_lock);
5270 
5271 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
5272 	{ .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
5273 	{ .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
5274 	{ .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
5275 	{ .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5276 	{ .name = FW_FILE_ISP24XX, },
5277 	{ .name = FW_FILE_ISP25XX, },
5278 	{ .name = FW_FILE_ISP81XX, },
5279 	{ .name = FW_FILE_ISP82XX, },
5280 	{ .name = FW_FILE_ISP2031, },
5281 	{ .name = FW_FILE_ISP8031, },
5282 };
5283 
5284 struct fw_blob *
5285 qla2x00_request_firmware(scsi_qla_host_t *vha)
5286 {
5287 	struct qla_hw_data *ha = vha->hw;
5288 	struct fw_blob *blob;
5289 
5290 	if (IS_QLA2100(ha)) {
5291 		blob = &qla_fw_blobs[FW_ISP21XX];
5292 	} else if (IS_QLA2200(ha)) {
5293 		blob = &qla_fw_blobs[FW_ISP22XX];
5294 	} else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5295 		blob = &qla_fw_blobs[FW_ISP2300];
5296 	} else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5297 		blob = &qla_fw_blobs[FW_ISP2322];
5298 	} else if (IS_QLA24XX_TYPE(ha)) {
5299 		blob = &qla_fw_blobs[FW_ISP24XX];
5300 	} else if (IS_QLA25XX(ha)) {
5301 		blob = &qla_fw_blobs[FW_ISP25XX];
5302 	} else if (IS_QLA81XX(ha)) {
5303 		blob = &qla_fw_blobs[FW_ISP81XX];
5304 	} else if (IS_QLA82XX(ha)) {
5305 		blob = &qla_fw_blobs[FW_ISP82XX];
5306 	} else if (IS_QLA2031(ha)) {
5307 		blob = &qla_fw_blobs[FW_ISP2031];
5308 	} else if (IS_QLA8031(ha)) {
5309 		blob = &qla_fw_blobs[FW_ISP8031];
5310 	} else {
5311 		return NULL;
5312 	}
5313 
5314 	mutex_lock(&qla_fw_lock);
5315 	if (blob->fw)
5316 		goto out;
5317 
5318 	if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
5319 		ql_log(ql_log_warn, vha, 0x0063,
5320 		    "Failed to load firmware image (%s).\n", blob->name);
5321 		blob->fw = NULL;
5322 		blob = NULL;
5323 		goto out;
5324 	}
5325 
5326 out:
5327 	mutex_unlock(&qla_fw_lock);
5328 	return blob;
5329 }
5330 
5331 static void
5332 qla2x00_release_firmware(void)
5333 {
5334 	int idx;
5335 
5336 	mutex_lock(&qla_fw_lock);
5337 	for (idx = 0; idx < FW_BLOBS; idx++)
5338 		release_firmware(qla_fw_blobs[idx].fw);
5339 	mutex_unlock(&qla_fw_lock);
5340 }
5341 
5342 static pci_ers_result_t
5343 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
5344 {
5345 	scsi_qla_host_t *vha = pci_get_drvdata(pdev);
5346 	struct qla_hw_data *ha = vha->hw;
5347 
5348 	ql_dbg(ql_dbg_aer, vha, 0x9000,
5349 	    "PCI error detected, state %x.\n", state);
5350 
5351 	switch (state) {
5352 	case pci_channel_io_normal:
5353 		ha->flags.eeh_busy = 0;
5354 		return PCI_ERS_RESULT_CAN_RECOVER;
5355 	case pci_channel_io_frozen:
5356 		ha->flags.eeh_busy = 1;
5357 		/* For ISP82XX complete any pending mailbox cmd */
5358 		if (IS_QLA82XX(ha)) {
5359 			ha->flags.isp82xx_fw_hung = 1;
5360 			ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
5361 			qla82xx_clear_pending_mbx(vha);
5362 		}
5363 		qla2x00_free_irqs(vha);
5364 		pci_disable_device(pdev);
5365 		/* Return back all IOs */
5366 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
5367 		return PCI_ERS_RESULT_NEED_RESET;
5368 	case pci_channel_io_perm_failure:
5369 		ha->flags.pci_channel_io_perm_failure = 1;
5370 		qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
5371 		return PCI_ERS_RESULT_DISCONNECT;
5372 	}
5373 	return PCI_ERS_RESULT_NEED_RESET;
5374 }
5375 
5376 static pci_ers_result_t
5377 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
5378 {
5379 	int risc_paused = 0;
5380 	uint32_t stat;
5381 	unsigned long flags;
5382 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5383 	struct qla_hw_data *ha = base_vha->hw;
5384 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
5385 	struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
5386 
5387 	if (IS_QLA82XX(ha))
5388 		return PCI_ERS_RESULT_RECOVERED;
5389 
5390 	spin_lock_irqsave(&ha->hardware_lock, flags);
5391 	if (IS_QLA2100(ha) || IS_QLA2200(ha)){
5392 		stat = RD_REG_DWORD(&reg->hccr);
5393 		if (stat & HCCR_RISC_PAUSE)
5394 			risc_paused = 1;
5395 	} else if (IS_QLA23XX(ha)) {
5396 		stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
5397 		if (stat & HSR_RISC_PAUSED)
5398 			risc_paused = 1;
5399 	} else if (IS_FWI2_CAPABLE(ha)) {
5400 		stat = RD_REG_DWORD(&reg24->host_status);
5401 		if (stat & HSRX_RISC_PAUSED)
5402 			risc_paused = 1;
5403 	}
5404 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
5405 
5406 	if (risc_paused) {
5407 		ql_log(ql_log_info, base_vha, 0x9003,
5408 		    "RISC paused -- mmio_enabled, Dumping firmware.\n");
5409 		ha->isp_ops->fw_dump(base_vha, 0);
5410 
5411 		return PCI_ERS_RESULT_NEED_RESET;
5412 	} else
5413 		return PCI_ERS_RESULT_RECOVERED;
5414 }
5415 
5416 static uint32_t
5417 qla82xx_error_recovery(scsi_qla_host_t *base_vha)
5418 {
5419 	uint32_t rval = QLA_FUNCTION_FAILED;
5420 	uint32_t drv_active = 0;
5421 	struct qla_hw_data *ha = base_vha->hw;
5422 	int fn;
5423 	struct pci_dev *other_pdev = NULL;
5424 
5425 	ql_dbg(ql_dbg_aer, base_vha, 0x9006,
5426 	    "Entered %s.\n", __func__);
5427 
5428 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5429 
5430 	if (base_vha->flags.online) {
5431 		/* Abort all outstanding commands,
5432 		 * so as to be requeued later */
5433 		qla2x00_abort_isp_cleanup(base_vha);
5434 	}
5435 
5436 
5437 	fn = PCI_FUNC(ha->pdev->devfn);
5438 	while (fn > 0) {
5439 		fn--;
5440 		ql_dbg(ql_dbg_aer, base_vha, 0x9007,
5441 		    "Finding pci device at function = 0x%x.\n", fn);
5442 		other_pdev =
5443 		    pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
5444 		    ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
5445 		    fn));
5446 
5447 		if (!other_pdev)
5448 			continue;
5449 		if (atomic_read(&other_pdev->enable_cnt)) {
5450 			ql_dbg(ql_dbg_aer, base_vha, 0x9008,
5451 			    "Found PCI func available and enable at 0x%x.\n",
5452 			    fn);
5453 			pci_dev_put(other_pdev);
5454 			break;
5455 		}
5456 		pci_dev_put(other_pdev);
5457 	}
5458 
5459 	if (!fn) {
5460 		/* Reset owner */
5461 		ql_dbg(ql_dbg_aer, base_vha, 0x9009,
5462 		    "This devfn is reset owner = 0x%x.\n",
5463 		    ha->pdev->devfn);
5464 		qla82xx_idc_lock(ha);
5465 
5466 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5467 		    QLA8XXX_DEV_INITIALIZING);
5468 
5469 		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
5470 		    QLA82XX_IDC_VERSION);
5471 
5472 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
5473 		ql_dbg(ql_dbg_aer, base_vha, 0x900a,
5474 		    "drv_active = 0x%x.\n", drv_active);
5475 
5476 		qla82xx_idc_unlock(ha);
5477 		/* Reset if device is not already reset
5478 		 * drv_active would be 0 if a reset has already been done
5479 		 */
5480 		if (drv_active)
5481 			rval = qla82xx_start_firmware(base_vha);
5482 		else
5483 			rval = QLA_SUCCESS;
5484 		qla82xx_idc_lock(ha);
5485 
5486 		if (rval != QLA_SUCCESS) {
5487 			ql_log(ql_log_info, base_vha, 0x900b,
5488 			    "HW State: FAILED.\n");
5489 			qla82xx_clear_drv_active(ha);
5490 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5491 			    QLA8XXX_DEV_FAILED);
5492 		} else {
5493 			ql_log(ql_log_info, base_vha, 0x900c,
5494 			    "HW State: READY.\n");
5495 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
5496 			    QLA8XXX_DEV_READY);
5497 			qla82xx_idc_unlock(ha);
5498 			ha->flags.isp82xx_fw_hung = 0;
5499 			rval = qla82xx_restart_isp(base_vha);
5500 			qla82xx_idc_lock(ha);
5501 			/* Clear driver state register */
5502 			qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
5503 			qla82xx_set_drv_active(base_vha);
5504 		}
5505 		qla82xx_idc_unlock(ha);
5506 	} else {
5507 		ql_dbg(ql_dbg_aer, base_vha, 0x900d,
5508 		    "This devfn is not reset owner = 0x%x.\n",
5509 		    ha->pdev->devfn);
5510 		if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
5511 		    QLA8XXX_DEV_READY)) {
5512 			ha->flags.isp82xx_fw_hung = 0;
5513 			rval = qla82xx_restart_isp(base_vha);
5514 			qla82xx_idc_lock(ha);
5515 			qla82xx_set_drv_active(base_vha);
5516 			qla82xx_idc_unlock(ha);
5517 		}
5518 	}
5519 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5520 
5521 	return rval;
5522 }
5523 
5524 static pci_ers_result_t
5525 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
5526 {
5527 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
5528 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5529 	struct qla_hw_data *ha = base_vha->hw;
5530 	struct rsp_que *rsp;
5531 	int rc, retries = 10;
5532 
5533 	ql_dbg(ql_dbg_aer, base_vha, 0x9004,
5534 	    "Slot Reset.\n");
5535 
5536 	/* Workaround: qla2xxx driver which access hardware earlier
5537 	 * needs error state to be pci_channel_io_online.
5538 	 * Otherwise mailbox command timesout.
5539 	 */
5540 	pdev->error_state = pci_channel_io_normal;
5541 
5542 	pci_restore_state(pdev);
5543 
5544 	/* pci_restore_state() clears the saved_state flag of the device
5545 	 * save restored state which resets saved_state flag
5546 	 */
5547 	pci_save_state(pdev);
5548 
5549 	if (ha->mem_only)
5550 		rc = pci_enable_device_mem(pdev);
5551 	else
5552 		rc = pci_enable_device(pdev);
5553 
5554 	if (rc) {
5555 		ql_log(ql_log_warn, base_vha, 0x9005,
5556 		    "Can't re-enable PCI device after reset.\n");
5557 		goto exit_slot_reset;
5558 	}
5559 
5560 	rsp = ha->rsp_q_map[0];
5561 	if (qla2x00_request_irqs(ha, rsp))
5562 		goto exit_slot_reset;
5563 
5564 	if (ha->isp_ops->pci_config(base_vha))
5565 		goto exit_slot_reset;
5566 
5567 	if (IS_QLA82XX(ha)) {
5568 		if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
5569 			ret = PCI_ERS_RESULT_RECOVERED;
5570 			goto exit_slot_reset;
5571 		} else
5572 			goto exit_slot_reset;
5573 	}
5574 
5575 	while (ha->flags.mbox_busy && retries--)
5576 		msleep(1000);
5577 
5578 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5579 	if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
5580 		ret =  PCI_ERS_RESULT_RECOVERED;
5581 	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
5582 
5583 
5584 exit_slot_reset:
5585 	ql_dbg(ql_dbg_aer, base_vha, 0x900e,
5586 	    "slot_reset return %x.\n", ret);
5587 
5588 	return ret;
5589 }
5590 
5591 static void
5592 qla2xxx_pci_resume(struct pci_dev *pdev)
5593 {
5594 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
5595 	struct qla_hw_data *ha = base_vha->hw;
5596 	int ret;
5597 
5598 	ql_dbg(ql_dbg_aer, base_vha, 0x900f,
5599 	    "pci_resume.\n");
5600 
5601 	ret = qla2x00_wait_for_hba_online(base_vha);
5602 	if (ret != QLA_SUCCESS) {
5603 		ql_log(ql_log_fatal, base_vha, 0x9002,
5604 		    "The device failed to resume I/O from slot/link_reset.\n");
5605 	}
5606 
5607 	pci_cleanup_aer_uncorrect_error_status(pdev);
5608 
5609 	ha->flags.eeh_busy = 0;
5610 }
5611 
5612 static const struct pci_error_handlers qla2xxx_err_handler = {
5613 	.error_detected = qla2xxx_pci_error_detected,
5614 	.mmio_enabled = qla2xxx_pci_mmio_enabled,
5615 	.slot_reset = qla2xxx_pci_slot_reset,
5616 	.resume = qla2xxx_pci_resume,
5617 };
5618 
5619 static struct pci_device_id qla2xxx_pci_tbl[] = {
5620 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
5621 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
5622 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
5623 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
5624 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
5625 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
5626 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
5627 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
5628 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
5629 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
5630 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
5631 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5632 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
5633 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
5634 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
5635 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
5636 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
5637 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
5638 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
5639 	{ 0 },
5640 };
5641 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
5642 
5643 static struct pci_driver qla2xxx_pci_driver = {
5644 	.name		= QLA2XXX_DRIVER_NAME,
5645 	.driver		= {
5646 		.owner		= THIS_MODULE,
5647 	},
5648 	.id_table	= qla2xxx_pci_tbl,
5649 	.probe		= qla2x00_probe_one,
5650 	.remove		= qla2x00_remove_one,
5651 	.shutdown	= qla2x00_shutdown,
5652 	.err_handler	= &qla2xxx_err_handler,
5653 };
5654 
5655 static const struct file_operations apidev_fops = {
5656 	.owner = THIS_MODULE,
5657 	.llseek = noop_llseek,
5658 };
5659 
5660 /**
5661  * qla2x00_module_init - Module initialization.
5662  **/
5663 static int __init
5664 qla2x00_module_init(void)
5665 {
5666 	int ret = 0;
5667 
5668 	/* Allocate cache for SRBs. */
5669 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
5670 	    SLAB_HWCACHE_ALIGN, NULL);
5671 	if (srb_cachep == NULL) {
5672 		ql_log(ql_log_fatal, NULL, 0x0001,
5673 		    "Unable to allocate SRB cache...Failing load!.\n");
5674 		return -ENOMEM;
5675 	}
5676 
5677 	/* Initialize target kmem_cache and mem_pools */
5678 	ret = qlt_init();
5679 	if (ret < 0) {
5680 		kmem_cache_destroy(srb_cachep);
5681 		return ret;
5682 	} else if (ret > 0) {
5683 		/*
5684 		 * If initiator mode is explictly disabled by qlt_init(),
5685 		 * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
5686 		 * performing scsi_scan_target() during LOOP UP event.
5687 		 */
5688 		qla2xxx_transport_functions.disable_target_scan = 1;
5689 		qla2xxx_transport_vport_functions.disable_target_scan = 1;
5690 	}
5691 
5692 	/* Derive version string. */
5693 	strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5694 	if (ql2xextended_error_logging)
5695 		strcat(qla2x00_version_str, "-debug");
5696 
5697 	qla2xxx_transport_template =
5698 	    fc_attach_transport(&qla2xxx_transport_functions);
5699 	if (!qla2xxx_transport_template) {
5700 		kmem_cache_destroy(srb_cachep);
5701 		ql_log(ql_log_fatal, NULL, 0x0002,
5702 		    "fc_attach_transport failed...Failing load!.\n");
5703 		qlt_exit();
5704 		return -ENODEV;
5705 	}
5706 
5707 	apidev_major = register_chrdev(0, QLA2XXX_APIDEV, &apidev_fops);
5708 	if (apidev_major < 0) {
5709 		ql_log(ql_log_fatal, NULL, 0x0003,
5710 		    "Unable to register char device %s.\n", QLA2XXX_APIDEV);
5711 	}
5712 
5713 	qla2xxx_transport_vport_template =
5714 	    fc_attach_transport(&qla2xxx_transport_vport_functions);
5715 	if (!qla2xxx_transport_vport_template) {
5716 		kmem_cache_destroy(srb_cachep);
5717 		qlt_exit();
5718 		fc_release_transport(qla2xxx_transport_template);
5719 		ql_log(ql_log_fatal, NULL, 0x0004,
5720 		    "fc_attach_transport vport failed...Failing load!.\n");
5721 		return -ENODEV;
5722 	}
5723 	ql_log(ql_log_info, NULL, 0x0005,
5724 	    "QLogic Fibre Channel HBA Driver: %s.\n",
5725 	    qla2x00_version_str);
5726 	ret = pci_register_driver(&qla2xxx_pci_driver);
5727 	if (ret) {
5728 		kmem_cache_destroy(srb_cachep);
5729 		qlt_exit();
5730 		fc_release_transport(qla2xxx_transport_template);
5731 		fc_release_transport(qla2xxx_transport_vport_template);
5732 		ql_log(ql_log_fatal, NULL, 0x0006,
5733 		    "pci_register_driver failed...ret=%d Failing load!.\n",
5734 		    ret);
5735 	}
5736 	return ret;
5737 }
5738 
5739 /**
5740  * qla2x00_module_exit - Module cleanup.
5741  **/
5742 static void __exit
5743 qla2x00_module_exit(void)
5744 {
5745 	unregister_chrdev(apidev_major, QLA2XXX_APIDEV);
5746 	pci_unregister_driver(&qla2xxx_pci_driver);
5747 	qla2x00_release_firmware();
5748 	kmem_cache_destroy(srb_cachep);
5749 	qlt_exit();
5750 	if (ctx_cachep)
5751 		kmem_cache_destroy(ctx_cachep);
5752 	fc_release_transport(qla2xxx_transport_template);
5753 	fc_release_transport(qla2xxx_transport_vport_template);
5754 }
5755 
5756 module_init(qla2x00_module_init);
5757 module_exit(qla2x00_module_exit);
5758 
5759 MODULE_AUTHOR("QLogic Corporation");
5760 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
5761 MODULE_LICENSE("GPL");
5762 MODULE_VERSION(QLA2XXX_VERSION);
5763 MODULE_FIRMWARE(FW_FILE_ISP21XX);
5764 MODULE_FIRMWARE(FW_FILE_ISP22XX);
5765 MODULE_FIRMWARE(FW_FILE_ISP2300);
5766 MODULE_FIRMWARE(FW_FILE_ISP2322);
5767 MODULE_FIRMWARE(FW_FILE_ISP24XX);
5768 MODULE_FIRMWARE(FW_FILE_ISP25XX);
5769