xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision 3dc4b6fb)
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2014 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8 #include "qla_gbl.h"
9 
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <linux/vmalloc.h>
13 
14 #include "qla_devtbl.h"
15 
16 #ifdef CONFIG_SPARC
17 #include <asm/prom.h>
18 #endif
19 
20 #include <target/target_core_base.h>
21 #include "qla_target.h"
22 
23 /*
24 *  QLogic ISP2x00 Hardware Support Function Prototypes.
25 */
26 static int qla2x00_isp_firmware(scsi_qla_host_t *);
27 static int qla2x00_setup_chip(scsi_qla_host_t *);
28 static int qla2x00_fw_ready(scsi_qla_host_t *);
29 static int qla2x00_configure_hba(scsi_qla_host_t *);
30 static int qla2x00_configure_loop(scsi_qla_host_t *);
31 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
32 static int qla2x00_configure_fabric(scsi_qla_host_t *);
33 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *);
34 static int qla2x00_restart_isp(scsi_qla_host_t *);
35 
36 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
37 static int qla84xx_init_chip(scsi_qla_host_t *);
38 static int qla25xx_init_queues(struct qla_hw_data *);
39 static int qla24xx_post_prli_work(struct scsi_qla_host*, fc_port_t *);
40 static void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha,
41 				      struct event_arg *ea);
42 static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
43     struct event_arg *);
44 static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
45 
46 /* SRB Extensions ---------------------------------------------------------- */
47 
48 void
49 qla2x00_sp_timeout(struct timer_list *t)
50 {
51 	srb_t *sp = from_timer(sp, t, u.iocb_cmd.timer);
52 	struct srb_iocb *iocb;
53 	struct req_que *req;
54 	unsigned long flags;
55 	struct qla_hw_data *ha = sp->vha->hw;
56 
57 	WARN_ON_ONCE(irqs_disabled());
58 	spin_lock_irqsave(&ha->hardware_lock, flags);
59 	req = sp->qpair->req;
60 	req->outstanding_cmds[sp->handle] = NULL;
61 	iocb = &sp->u.iocb_cmd;
62 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
63 	iocb->timeout(sp);
64 }
65 
66 void qla2x00_sp_free(srb_t *sp)
67 {
68 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
69 
70 	del_timer(&iocb->timer);
71 	qla2x00_rel_sp(sp);
72 }
73 
74 /* Asynchronous Login/Logout Routines -------------------------------------- */
75 
76 unsigned long
77 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
78 {
79 	unsigned long tmo;
80 	struct qla_hw_data *ha = vha->hw;
81 
82 	/* Firmware should use switch negotiated r_a_tov for timeout. */
83 	tmo = ha->r_a_tov / 10 * 2;
84 	if (IS_QLAFX00(ha)) {
85 		tmo = FX00_DEF_RATOV * 2;
86 	} else if (!IS_FWI2_CAPABLE(ha)) {
87 		/*
88 		 * Except for earlier ISPs where the timeout is seeded from the
89 		 * initialization control block.
90 		 */
91 		tmo = ha->login_timeout;
92 	}
93 	return tmo;
94 }
95 
96 static void qla24xx_abort_iocb_timeout(void *data)
97 {
98 	srb_t *sp = data;
99 	struct srb_iocb *abt = &sp->u.iocb_cmd;
100 	struct qla_qpair *qpair = sp->qpair;
101 	u32 handle;
102 	unsigned long flags;
103 
104 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
105 	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
106 		/* removing the abort */
107 		if (qpair->req->outstanding_cmds[handle] == sp) {
108 			qpair->req->outstanding_cmds[handle] = NULL;
109 			break;
110 		}
111 	}
112 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
113 
114 	abt->u.abt.comp_status = CS_TIMEOUT;
115 	sp->done(sp, QLA_OS_TIMER_EXPIRED);
116 }
117 
118 static void qla24xx_abort_sp_done(srb_t *sp, int res)
119 {
120 	struct srb_iocb *abt = &sp->u.iocb_cmd;
121 
122 	del_timer(&sp->u.iocb_cmd.timer);
123 	if (sp->flags & SRB_WAKEUP_ON_COMP)
124 		complete(&abt->u.abt.comp);
125 	else
126 		sp->free(sp);
127 }
128 
129 static int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
130 {
131 	scsi_qla_host_t *vha = cmd_sp->vha;
132 	struct srb_iocb *abt_iocb;
133 	srb_t *sp;
134 	int rval = QLA_FUNCTION_FAILED;
135 
136 	sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
137 				  GFP_ATOMIC);
138 	if (!sp)
139 		return rval;
140 
141 	abt_iocb = &sp->u.iocb_cmd;
142 	sp->type = SRB_ABT_CMD;
143 	sp->name = "abort";
144 	sp->qpair = cmd_sp->qpair;
145 	if (wait)
146 		sp->flags = SRB_WAKEUP_ON_COMP;
147 
148 	abt_iocb->timeout = qla24xx_abort_iocb_timeout;
149 	init_completion(&abt_iocb->u.abt.comp);
150 	/* FW can send 2 x ABTS's timeout/20s */
151 	qla2x00_init_timer(sp, 42);
152 
153 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
154 	abt_iocb->u.abt.req_que_no = cpu_to_le16(cmd_sp->qpair->req->id);
155 
156 	sp->done = qla24xx_abort_sp_done;
157 
158 	ql_dbg(ql_dbg_async, vha, 0x507c,
159 	       "Abort command issued - hdl=%x, type=%x\n", cmd_sp->handle,
160 	       cmd_sp->type);
161 
162 	rval = qla2x00_start_sp(sp);
163 	if (rval != QLA_SUCCESS) {
164 		sp->free(sp);
165 		return rval;
166 	}
167 
168 	if (wait) {
169 		wait_for_completion(&abt_iocb->u.abt.comp);
170 		rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
171 			QLA_SUCCESS : QLA_FUNCTION_FAILED;
172 		sp->free(sp);
173 	}
174 
175 	return rval;
176 }
177 
178 void
179 qla2x00_async_iocb_timeout(void *data)
180 {
181 	srb_t *sp = data;
182 	fc_port_t *fcport = sp->fcport;
183 	struct srb_iocb *lio = &sp->u.iocb_cmd;
184 	int rc, h;
185 	unsigned long flags;
186 
187 	if (fcport) {
188 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
189 		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
190 		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
191 
192 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
193 	} else {
194 		pr_info("Async-%s timeout - hdl=%x.\n",
195 		    sp->name, sp->handle);
196 	}
197 
198 	switch (sp->type) {
199 	case SRB_LOGIN_CMD:
200 		rc = qla24xx_async_abort_cmd(sp, false);
201 		if (rc) {
202 			/* Retry as needed. */
203 			lio->u.logio.data[0] = MBS_COMMAND_ERROR;
204 			lio->u.logio.data[1] =
205 				lio->u.logio.flags & SRB_LOGIN_RETRIED ?
206 				QLA_LOGIO_LOGIN_RETRIED : 0;
207 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
208 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
209 			    h++) {
210 				if (sp->qpair->req->outstanding_cmds[h] ==
211 				    sp) {
212 					sp->qpair->req->outstanding_cmds[h] =
213 					    NULL;
214 					break;
215 				}
216 			}
217 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
218 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
219 		}
220 		break;
221 	case SRB_LOGOUT_CMD:
222 	case SRB_CT_PTHRU_CMD:
223 	case SRB_MB_IOCB:
224 	case SRB_NACK_PLOGI:
225 	case SRB_NACK_PRLI:
226 	case SRB_NACK_LOGO:
227 	case SRB_CTRL_VP:
228 		rc = qla24xx_async_abort_cmd(sp, false);
229 		if (rc) {
230 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
231 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
232 			    h++) {
233 				if (sp->qpair->req->outstanding_cmds[h] ==
234 				    sp) {
235 					sp->qpair->req->outstanding_cmds[h] =
236 					    NULL;
237 					break;
238 				}
239 			}
240 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
241 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
242 		}
243 		break;
244 	default:
245 		WARN_ON_ONCE(true);
246 		sp->done(sp, QLA_FUNCTION_TIMEOUT);
247 		break;
248 	}
249 }
250 
251 static void qla2x00_async_login_sp_done(srb_t *sp, int res)
252 {
253 	struct scsi_qla_host *vha = sp->vha;
254 	struct srb_iocb *lio = &sp->u.iocb_cmd;
255 	struct event_arg ea;
256 
257 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
258 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
259 
260 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
261 
262 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
263 		memset(&ea, 0, sizeof(ea));
264 		ea.fcport = sp->fcport;
265 		ea.data[0] = lio->u.logio.data[0];
266 		ea.data[1] = lio->u.logio.data[1];
267 		ea.iop[0] = lio->u.logio.iop[0];
268 		ea.iop[1] = lio->u.logio.iop[1];
269 		ea.sp = sp;
270 		qla24xx_handle_plogi_done_event(vha, &ea);
271 	}
272 
273 	sp->free(sp);
274 }
275 
276 static inline bool
277 fcport_is_smaller(fc_port_t *fcport)
278 {
279 	if (wwn_to_u64(fcport->port_name) <
280 	    wwn_to_u64(fcport->vha->port_name))
281 		return true;
282 	else
283 		return false;
284 }
285 
286 static inline bool
287 fcport_is_bigger(fc_port_t *fcport)
288 {
289 	return !fcport_is_smaller(fcport);
290 }
291 
292 int
293 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
294     uint16_t *data)
295 {
296 	srb_t *sp;
297 	struct srb_iocb *lio;
298 	int rval = QLA_FUNCTION_FAILED;
299 
300 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
301 	    fcport->loop_id == FC_NO_LOOP_ID) {
302 		ql_log(ql_log_warn, vha, 0xffff,
303 		    "%s: %8phC - not sending command.\n",
304 		    __func__, fcport->port_name);
305 		return rval;
306 	}
307 
308 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
309 	if (!sp)
310 		goto done;
311 
312 	fcport->flags |= FCF_ASYNC_SENT;
313 	fcport->logout_completed = 0;
314 
315 	fcport->disc_state = DSC_LOGIN_PEND;
316 	sp->type = SRB_LOGIN_CMD;
317 	sp->name = "login";
318 	sp->gen1 = fcport->rscn_gen;
319 	sp->gen2 = fcport->login_gen;
320 
321 	lio = &sp->u.iocb_cmd;
322 	lio->timeout = qla2x00_async_iocb_timeout;
323 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
324 
325 	sp->done = qla2x00_async_login_sp_done;
326 	if (N2N_TOPO(fcport->vha->hw) && fcport_is_bigger(fcport))
327 		lio->u.logio.flags |= SRB_LOGIN_PRLI_ONLY;
328 	else
329 		lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
330 
331 	if (fcport->fc4f_nvme)
332 		lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
333 
334 	ql_dbg(ql_dbg_disc, vha, 0x2072,
335 	    "Async-login - %8phC hdl=%x, loopid=%x portid=%02x%02x%02x "
336 		"retries=%d.\n", fcport->port_name, sp->handle, fcport->loop_id,
337 	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
338 	    fcport->login_retry);
339 
340 	rval = qla2x00_start_sp(sp);
341 	if (rval != QLA_SUCCESS) {
342 		fcport->flags |= FCF_LOGIN_NEEDED;
343 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
344 		goto done_free_sp;
345 	}
346 
347 	return rval;
348 
349 done_free_sp:
350 	sp->free(sp);
351 	fcport->flags &= ~FCF_ASYNC_SENT;
352 done:
353 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
354 	return rval;
355 }
356 
357 static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
358 {
359 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
360 	sp->fcport->login_gen++;
361 	qlt_logo_completion_handler(sp->fcport, res);
362 	sp->free(sp);
363 }
364 
365 int
366 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
367 {
368 	srb_t *sp;
369 	struct srb_iocb *lio;
370 	int rval = QLA_FUNCTION_FAILED;
371 
372 	fcport->flags |= FCF_ASYNC_SENT;
373 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
374 	if (!sp)
375 		goto done;
376 
377 	sp->type = SRB_LOGOUT_CMD;
378 	sp->name = "logout";
379 
380 	lio = &sp->u.iocb_cmd;
381 	lio->timeout = qla2x00_async_iocb_timeout;
382 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
383 
384 	sp->done = qla2x00_async_logout_sp_done;
385 
386 	ql_dbg(ql_dbg_disc, vha, 0x2070,
387 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC.\n",
388 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
389 		fcport->d_id.b.area, fcport->d_id.b.al_pa,
390 		fcport->port_name);
391 
392 	rval = qla2x00_start_sp(sp);
393 	if (rval != QLA_SUCCESS)
394 		goto done_free_sp;
395 	return rval;
396 
397 done_free_sp:
398 	sp->free(sp);
399 done:
400 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
401 	return rval;
402 }
403 
404 void
405 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
406     uint16_t *data)
407 {
408 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
409 	/* Don't re-login in target mode */
410 	if (!fcport->tgt_session)
411 		qla2x00_mark_device_lost(vha, fcport, 1, 0);
412 	qlt_logo_completion_handler(fcport, data[0]);
413 }
414 
415 static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
416 {
417 	struct srb_iocb *lio = &sp->u.iocb_cmd;
418 	struct scsi_qla_host *vha = sp->vha;
419 
420 	sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
421 	if (!test_bit(UNLOADING, &vha->dpc_flags))
422 		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
423 		    lio->u.logio.data);
424 	sp->free(sp);
425 }
426 
427 int
428 qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
429 {
430 	srb_t *sp;
431 	struct srb_iocb *lio;
432 	int rval;
433 
434 	rval = QLA_FUNCTION_FAILED;
435 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
436 	if (!sp)
437 		goto done;
438 
439 	sp->type = SRB_PRLO_CMD;
440 	sp->name = "prlo";
441 
442 	lio = &sp->u.iocb_cmd;
443 	lio->timeout = qla2x00_async_iocb_timeout;
444 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
445 
446 	sp->done = qla2x00_async_prlo_sp_done;
447 
448 	ql_dbg(ql_dbg_disc, vha, 0x2070,
449 	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
450 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
451 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
452 
453 	rval = qla2x00_start_sp(sp);
454 	if (rval != QLA_SUCCESS)
455 		goto done_free_sp;
456 
457 	return rval;
458 
459 done_free_sp:
460 	sp->free(sp);
461 done:
462 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
463 	return rval;
464 }
465 
466 static
467 void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
468 {
469 	struct fc_port *fcport = ea->fcport;
470 
471 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
472 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
473 	    __func__, fcport->port_name, fcport->disc_state,
474 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
475 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
476 
477 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
478 		  ea->data[0]);
479 
480 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
481 		ql_dbg(ql_dbg_disc, vha, 0x2066,
482 		    "%s %8phC: adisc fail: post delete\n",
483 		    __func__, ea->fcport->port_name);
484 		/* deleted = 0 & logout_on_delete = force fw cleanup */
485 		fcport->deleted = 0;
486 		fcport->logout_on_delete = 1;
487 		qlt_schedule_sess_for_deletion(ea->fcport);
488 		return;
489 	}
490 
491 	if (ea->fcport->disc_state == DSC_DELETE_PEND)
492 		return;
493 
494 	if (ea->sp->gen2 != ea->fcport->login_gen) {
495 		/* target side must have changed it. */
496 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
497 		    "%s %8phC generation changed\n",
498 		    __func__, ea->fcport->port_name);
499 		return;
500 	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
501 		qla_rscn_replay(fcport);
502 		qlt_schedule_sess_for_deletion(fcport);
503 		return;
504 	}
505 
506 	__qla24xx_handle_gpdb_event(vha, ea);
507 }
508 
509 static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
510 {
511 	struct qla_work_evt *e;
512 
513 	e = qla2x00_alloc_work(vha, QLA_EVT_ELS_PLOGI);
514 	if (!e)
515 		return QLA_FUNCTION_FAILED;
516 
517 	e->u.fcport.fcport = fcport;
518 	fcport->flags |= FCF_ASYNC_ACTIVE;
519 	return qla2x00_post_work(vha, e);
520 }
521 
522 static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
523 {
524 	struct scsi_qla_host *vha = sp->vha;
525 	struct event_arg ea;
526 	struct srb_iocb *lio = &sp->u.iocb_cmd;
527 
528 	ql_dbg(ql_dbg_disc, vha, 0x2066,
529 	    "Async done-%s res %x %8phC\n",
530 	    sp->name, res, sp->fcport->port_name);
531 
532 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
533 
534 	memset(&ea, 0, sizeof(ea));
535 	ea.rc = res;
536 	ea.data[0] = lio->u.logio.data[0];
537 	ea.data[1] = lio->u.logio.data[1];
538 	ea.iop[0] = lio->u.logio.iop[0];
539 	ea.iop[1] = lio->u.logio.iop[1];
540 	ea.fcport = sp->fcport;
541 	ea.sp = sp;
542 
543 	qla24xx_handle_adisc_event(vha, &ea);
544 
545 	sp->free(sp);
546 }
547 
548 int
549 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
550     uint16_t *data)
551 {
552 	srb_t *sp;
553 	struct srb_iocb *lio;
554 	int rval = QLA_FUNCTION_FAILED;
555 
556 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
557 		return rval;
558 
559 	fcport->flags |= FCF_ASYNC_SENT;
560 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
561 	if (!sp)
562 		goto done;
563 
564 	sp->type = SRB_ADISC_CMD;
565 	sp->name = "adisc";
566 
567 	lio = &sp->u.iocb_cmd;
568 	lio->timeout = qla2x00_async_iocb_timeout;
569 	sp->gen1 = fcport->rscn_gen;
570 	sp->gen2 = fcport->login_gen;
571 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
572 
573 	sp->done = qla2x00_async_adisc_sp_done;
574 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
575 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
576 
577 	ql_dbg(ql_dbg_disc, vha, 0x206f,
578 	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
579 	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
580 
581 	rval = qla2x00_start_sp(sp);
582 	if (rval != QLA_SUCCESS)
583 		goto done_free_sp;
584 
585 	return rval;
586 
587 done_free_sp:
588 	sp->free(sp);
589 done:
590 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
591 	qla2x00_post_async_adisc_work(vha, fcport, data);
592 	return rval;
593 }
594 
595 static bool qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
596 {
597 	struct qla_hw_data *ha = vha->hw;
598 
599 	if (IS_FWI2_CAPABLE(ha))
600 		return loop_id > NPH_LAST_HANDLE;
601 
602 	return (loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
603 		loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST;
604 }
605 
606 /**
607  * qla2x00_find_new_loop_id - scan through our port list and find a new usable loop ID
608  * @vha: adapter state pointer.
609  * @dev: port structure pointer.
610  *
611  * Returns:
612  *	qla2x00 local function return status code.
613  *
614  * Context:
615  *	Kernel context.
616  */
617 static int qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
618 {
619 	int	rval;
620 	struct qla_hw_data *ha = vha->hw;
621 	unsigned long flags = 0;
622 
623 	rval = QLA_SUCCESS;
624 
625 	spin_lock_irqsave(&ha->vport_slock, flags);
626 
627 	dev->loop_id = find_first_zero_bit(ha->loop_id_map, LOOPID_MAP_SIZE);
628 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
629 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
630 		dev->loop_id = FC_NO_LOOP_ID;
631 		rval = QLA_FUNCTION_FAILED;
632 	} else {
633 		set_bit(dev->loop_id, ha->loop_id_map);
634 	}
635 	spin_unlock_irqrestore(&ha->vport_slock, flags);
636 
637 	if (rval == QLA_SUCCESS)
638 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
639 		       "Assigning new loopid=%x, portid=%x.\n",
640 		       dev->loop_id, dev->d_id.b24);
641 	else
642 		ql_log(ql_log_warn, dev->vha, 0x2087,
643 		       "No loop_id's available, portid=%x.\n",
644 		       dev->d_id.b24);
645 
646 	return rval;
647 }
648 
649 void qla2x00_clear_loop_id(fc_port_t *fcport)
650 {
651 	struct qla_hw_data *ha = fcport->vha->hw;
652 
653 	if (fcport->loop_id == FC_NO_LOOP_ID ||
654 	    qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
655 		return;
656 
657 	clear_bit(fcport->loop_id, ha->loop_id_map);
658 	fcport->loop_id = FC_NO_LOOP_ID;
659 }
660 
661 static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
662 	struct event_arg *ea)
663 {
664 	fc_port_t *fcport, *conflict_fcport;
665 	struct get_name_list_extended *e;
666 	u16 i, n, found = 0, loop_id;
667 	port_id_t id;
668 	u64 wwn;
669 	u16 data[2];
670 	u8 current_login_state;
671 
672 	fcport = ea->fcport;
673 	ql_dbg(ql_dbg_disc, vha, 0xffff,
674 	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d\n",
675 	    __func__, fcport->port_name, fcport->disc_state,
676 	    fcport->fw_login_state, ea->rc,
677 	    fcport->login_gen, fcport->last_login_gen,
678 	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id);
679 
680 	if (fcport->disc_state == DSC_DELETE_PEND)
681 		return;
682 
683 	if (ea->rc) { /* rval */
684 		if (fcport->login_retry == 0) {
685 			ql_dbg(ql_dbg_disc, vha, 0x20de,
686 			    "GNL failed Port login retry %8phN, retry cnt=%d.\n",
687 			    fcport->port_name, fcport->login_retry);
688 		}
689 		return;
690 	}
691 
692 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
693 		qla_rscn_replay(fcport);
694 		qlt_schedule_sess_for_deletion(fcport);
695 		return;
696 	} else if (fcport->last_login_gen != fcport->login_gen) {
697 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
698 		    "%s %8phC login gen changed\n",
699 		    __func__, fcport->port_name);
700 		return;
701 	}
702 
703 	n = ea->data[0] / sizeof(struct get_name_list_extended);
704 
705 	ql_dbg(ql_dbg_disc, vha, 0x20e1,
706 	    "%s %d %8phC n %d %02x%02x%02x lid %d \n",
707 	    __func__, __LINE__, fcport->port_name, n,
708 	    fcport->d_id.b.domain, fcport->d_id.b.area,
709 	    fcport->d_id.b.al_pa, fcport->loop_id);
710 
711 	for (i = 0; i < n; i++) {
712 		e = &vha->gnl.l[i];
713 		wwn = wwn_to_u64(e->port_name);
714 		id.b.domain = e->port_id[2];
715 		id.b.area = e->port_id[1];
716 		id.b.al_pa = e->port_id[0];
717 		id.b.rsvd_1 = 0;
718 
719 		if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
720 			continue;
721 
722 		if (IS_SW_RESV_ADDR(id))
723 			continue;
724 
725 		found = 1;
726 
727 		loop_id = le16_to_cpu(e->nport_handle);
728 		loop_id = (loop_id & 0x7fff);
729 		if  (fcport->fc4f_nvme)
730 			current_login_state = e->current_login_state >> 4;
731 		else
732 			current_login_state = e->current_login_state & 0xf;
733 
734 
735 		ql_dbg(ql_dbg_disc, vha, 0x20e2,
736 		    "%s found %8phC CLS [%x|%x] nvme %d ID[%02x%02x%02x|%02x%02x%02x] lid[%d|%d]\n",
737 		    __func__, fcport->port_name,
738 		    e->current_login_state, fcport->fw_login_state,
739 		    fcport->fc4f_nvme, id.b.domain, id.b.area, id.b.al_pa,
740 		    fcport->d_id.b.domain, fcport->d_id.b.area,
741 		    fcport->d_id.b.al_pa, loop_id, fcport->loop_id);
742 
743 		switch (fcport->disc_state) {
744 		case DSC_DELETE_PEND:
745 		case DSC_DELETED:
746 			break;
747 		default:
748 			if ((id.b24 != fcport->d_id.b24 &&
749 			    fcport->d_id.b24) ||
750 			    (fcport->loop_id != FC_NO_LOOP_ID &&
751 				fcport->loop_id != loop_id)) {
752 				ql_dbg(ql_dbg_disc, vha, 0x20e3,
753 				    "%s %d %8phC post del sess\n",
754 				    __func__, __LINE__, fcport->port_name);
755 				qlt_schedule_sess_for_deletion(fcport);
756 				return;
757 			}
758 			break;
759 		}
760 
761 		fcport->loop_id = loop_id;
762 
763 		wwn = wwn_to_u64(fcport->port_name);
764 		qlt_find_sess_invalidate_other(vha, wwn,
765 			id, loop_id, &conflict_fcport);
766 
767 		if (conflict_fcport) {
768 			/*
769 			 * Another share fcport share the same loop_id &
770 			 * nport id. Conflict fcport needs to finish
771 			 * cleanup before this fcport can proceed to login.
772 			 */
773 			conflict_fcport->conflict = fcport;
774 			fcport->login_pause = 1;
775 		}
776 
777 		switch (vha->hw->current_topology) {
778 		default:
779 			switch (current_login_state) {
780 			case DSC_LS_PRLI_COMP:
781 				ql_dbg(ql_dbg_disc + ql_dbg_verbose,
782 				    vha, 0x20e4, "%s %d %8phC post gpdb\n",
783 				    __func__, __LINE__, fcport->port_name);
784 
785 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
786 					fcport->port_type = FCT_INITIATOR;
787 				else
788 					fcport->port_type = FCT_TARGET;
789 				data[0] = data[1] = 0;
790 				qla2x00_post_async_adisc_work(vha, fcport,
791 				    data);
792 				break;
793 			case DSC_LS_PORT_UNAVAIL:
794 			default:
795 				if (fcport->loop_id == FC_NO_LOOP_ID) {
796 					qla2x00_find_new_loop_id(vha, fcport);
797 					fcport->fw_login_state =
798 					    DSC_LS_PORT_UNAVAIL;
799 				}
800 				ql_dbg(ql_dbg_disc, vha, 0x20e5,
801 				    "%s %d %8phC\n", __func__, __LINE__,
802 				    fcport->port_name);
803 				qla24xx_fcport_handle_login(vha, fcport);
804 				break;
805 			}
806 			break;
807 		case ISP_CFG_N:
808 			fcport->fw_login_state = current_login_state;
809 			fcport->d_id = id;
810 			switch (current_login_state) {
811 			case DSC_LS_PRLI_PEND:
812 				/*
813 				 * In the middle of PRLI. Let it finish.
814 				 * Allow relogin code to recheck state again
815 				 * with GNL. Push disc_state back to DELETED
816 				 * so GNL can go out again
817 				 */
818 				fcport->disc_state = DSC_DELETED;
819 				break;
820 			case DSC_LS_PRLI_COMP:
821 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
822 					fcport->port_type = FCT_INITIATOR;
823 				else
824 					fcport->port_type = FCT_TARGET;
825 
826 				data[0] = data[1] = 0;
827 				qla2x00_post_async_adisc_work(vha, fcport,
828 				    data);
829 				break;
830 			case DSC_LS_PLOGI_COMP:
831 				if (fcport_is_bigger(fcport)) {
832 					/* local adapter is smaller */
833 					if (fcport->loop_id != FC_NO_LOOP_ID)
834 						qla2x00_clear_loop_id(fcport);
835 
836 					fcport->loop_id = loop_id;
837 					qla24xx_fcport_handle_login(vha,
838 					    fcport);
839 					break;
840 				}
841 				/* fall through */
842 			default:
843 				if (fcport_is_smaller(fcport)) {
844 					/* local adapter is bigger */
845 					if (fcport->loop_id != FC_NO_LOOP_ID)
846 						qla2x00_clear_loop_id(fcport);
847 
848 					fcport->loop_id = loop_id;
849 					qla24xx_fcport_handle_login(vha,
850 					    fcport);
851 				}
852 				break;
853 			}
854 			break;
855 		} /* switch (ha->current_topology) */
856 	}
857 
858 	if (!found) {
859 		switch (vha->hw->current_topology) {
860 		case ISP_CFG_F:
861 		case ISP_CFG_FL:
862 			for (i = 0; i < n; i++) {
863 				e = &vha->gnl.l[i];
864 				id.b.domain = e->port_id[0];
865 				id.b.area = e->port_id[1];
866 				id.b.al_pa = e->port_id[2];
867 				id.b.rsvd_1 = 0;
868 				loop_id = le16_to_cpu(e->nport_handle);
869 
870 				if (fcport->d_id.b24 == id.b24) {
871 					conflict_fcport =
872 					    qla2x00_find_fcport_by_wwpn(vha,
873 						e->port_name, 0);
874 					if (conflict_fcport) {
875 						ql_dbg(ql_dbg_disc + ql_dbg_verbose,
876 						    vha, 0x20e5,
877 						    "%s %d %8phC post del sess\n",
878 						    __func__, __LINE__,
879 						    conflict_fcport->port_name);
880 						qlt_schedule_sess_for_deletion
881 							(conflict_fcport);
882 					}
883 				}
884 				/*
885 				 * FW already picked this loop id for
886 				 * another fcport
887 				 */
888 				if (fcport->loop_id == loop_id)
889 					fcport->loop_id = FC_NO_LOOP_ID;
890 			}
891 			qla24xx_fcport_handle_login(vha, fcport);
892 			break;
893 		case ISP_CFG_N:
894 			fcport->disc_state = DSC_DELETED;
895 			if (time_after_eq(jiffies, fcport->dm_login_expire)) {
896 				if (fcport->n2n_link_reset_cnt < 2) {
897 					fcport->n2n_link_reset_cnt++;
898 					/*
899 					 * remote port is not sending PLOGI.
900 					 * Reset link to kick start his state
901 					 * machine
902 					 */
903 					set_bit(N2N_LINK_RESET,
904 					    &vha->dpc_flags);
905 				} else {
906 					if (fcport->n2n_chip_reset < 1) {
907 						ql_log(ql_log_info, vha, 0x705d,
908 						    "Chip reset to bring laser down");
909 						set_bit(ISP_ABORT_NEEDED,
910 						    &vha->dpc_flags);
911 						fcport->n2n_chip_reset++;
912 					} else {
913 						ql_log(ql_log_info, vha, 0x705d,
914 						    "Remote port %8ph is not coming back\n",
915 						    fcport->port_name);
916 						fcport->scan_state = 0;
917 					}
918 				}
919 				qla2xxx_wake_dpc(vha);
920 			} else {
921 				/*
922 				 * report port suppose to do PLOGI. Give him
923 				 * more time. FW will catch it.
924 				 */
925 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
926 			}
927 			break;
928 		default:
929 			break;
930 		}
931 	}
932 } /* gnl_event */
933 
934 static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
935 {
936 	struct scsi_qla_host *vha = sp->vha;
937 	unsigned long flags;
938 	struct fc_port *fcport = NULL, *tf;
939 	u16 i, n = 0, loop_id;
940 	struct event_arg ea;
941 	struct get_name_list_extended *e;
942 	u64 wwn;
943 	struct list_head h;
944 	bool found = false;
945 
946 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
947 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
948 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
949 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
950 
951 	if (res == QLA_FUNCTION_TIMEOUT)
952 		return;
953 
954 	sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
955 	memset(&ea, 0, sizeof(ea));
956 	ea.sp = sp;
957 	ea.rc = res;
958 
959 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
960 	    sizeof(struct get_name_list_extended)) {
961 		n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
962 		    sizeof(struct get_name_list_extended);
963 		ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
964 	}
965 
966 	for (i = 0; i < n; i++) {
967 		e = &vha->gnl.l[i];
968 		loop_id = le16_to_cpu(e->nport_handle);
969 		/* mask out reserve bit */
970 		loop_id = (loop_id & 0x7fff);
971 		set_bit(loop_id, vha->hw->loop_id_map);
972 		wwn = wwn_to_u64(e->port_name);
973 
974 		ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x20e8,
975 		    "%s %8phC %02x:%02x:%02x state %d/%d lid %x \n",
976 		    __func__, (void *)&wwn, e->port_id[2], e->port_id[1],
977 		    e->port_id[0], e->current_login_state, e->last_login_state,
978 		    (loop_id & 0x7fff));
979 	}
980 
981 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
982 
983 	INIT_LIST_HEAD(&h);
984 	fcport = tf = NULL;
985 	if (!list_empty(&vha->gnl.fcports))
986 		list_splice_init(&vha->gnl.fcports, &h);
987 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
988 
989 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
990 		list_del_init(&fcport->gnl_entry);
991 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
992 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
993 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
994 		ea.fcport = fcport;
995 
996 		qla24xx_handle_gnl_done_event(vha, &ea);
997 	}
998 
999 	/* create new fcport if fw has knowledge of new sessions */
1000 	for (i = 0; i < n; i++) {
1001 		port_id_t id;
1002 		u64 wwnn;
1003 
1004 		e = &vha->gnl.l[i];
1005 		wwn = wwn_to_u64(e->port_name);
1006 
1007 		found = false;
1008 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
1009 			if (!memcmp((u8 *)&wwn, fcport->port_name,
1010 			    WWN_SIZE)) {
1011 				found = true;
1012 				break;
1013 			}
1014 		}
1015 
1016 		id.b.domain = e->port_id[2];
1017 		id.b.area = e->port_id[1];
1018 		id.b.al_pa = e->port_id[0];
1019 		id.b.rsvd_1 = 0;
1020 
1021 		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
1022 			ql_dbg(ql_dbg_disc, vha, 0x2065,
1023 			    "%s %d %8phC %06x post new sess\n",
1024 			    __func__, __LINE__, (u8 *)&wwn, id.b24);
1025 			wwnn = wwn_to_u64(e->node_name);
1026 			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
1027 			    (u8 *)&wwnn, NULL, FC4_TYPE_UNKNOWN);
1028 		}
1029 	}
1030 
1031 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1032 	vha->gnl.sent = 0;
1033 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1034 
1035 	sp->free(sp);
1036 }
1037 
1038 int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
1039 {
1040 	srb_t *sp;
1041 	struct srb_iocb *mbx;
1042 	int rval = QLA_FUNCTION_FAILED;
1043 	unsigned long flags;
1044 	u16 *mb;
1045 
1046 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
1047 		return rval;
1048 
1049 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
1050 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
1051 
1052 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1053 	fcport->flags |= FCF_ASYNC_SENT;
1054 	fcport->disc_state = DSC_GNL;
1055 	fcport->last_rscn_gen = fcport->rscn_gen;
1056 	fcport->last_login_gen = fcport->login_gen;
1057 
1058 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
1059 	if (vha->gnl.sent) {
1060 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1061 		return QLA_SUCCESS;
1062 	}
1063 	vha->gnl.sent = 1;
1064 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1065 
1066 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1067 	if (!sp)
1068 		goto done;
1069 
1070 	sp->type = SRB_MB_IOCB;
1071 	sp->name = "gnlist";
1072 	sp->gen1 = fcport->rscn_gen;
1073 	sp->gen2 = fcport->login_gen;
1074 
1075 	mbx = &sp->u.iocb_cmd;
1076 	mbx->timeout = qla2x00_async_iocb_timeout;
1077 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
1078 
1079 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1080 	mb[0] = MBC_PORT_NODE_NAME_LIST;
1081 	mb[1] = BIT_2 | BIT_3;
1082 	mb[2] = MSW(vha->gnl.ldma);
1083 	mb[3] = LSW(vha->gnl.ldma);
1084 	mb[6] = MSW(MSD(vha->gnl.ldma));
1085 	mb[7] = LSW(MSD(vha->gnl.ldma));
1086 	mb[8] = vha->gnl.size;
1087 	mb[9] = vha->vp_idx;
1088 
1089 	sp->done = qla24xx_async_gnl_sp_done;
1090 
1091 	ql_dbg(ql_dbg_disc, vha, 0x20da,
1092 	    "Async-%s - OUT WWPN %8phC hndl %x\n",
1093 	    sp->name, fcport->port_name, sp->handle);
1094 
1095 	rval = qla2x00_start_sp(sp);
1096 	if (rval != QLA_SUCCESS)
1097 		goto done_free_sp;
1098 
1099 	return rval;
1100 
1101 done_free_sp:
1102 	sp->free(sp);
1103 	fcport->flags &= ~FCF_ASYNC_SENT;
1104 done:
1105 	return rval;
1106 }
1107 
1108 int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1109 {
1110 	struct qla_work_evt *e;
1111 
1112 	e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
1113 	if (!e)
1114 		return QLA_FUNCTION_FAILED;
1115 
1116 	e->u.fcport.fcport = fcport;
1117 	fcport->flags |= FCF_ASYNC_ACTIVE;
1118 	return qla2x00_post_work(vha, e);
1119 }
1120 
1121 static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
1122 {
1123 	struct scsi_qla_host *vha = sp->vha;
1124 	struct qla_hw_data *ha = vha->hw;
1125 	fc_port_t *fcport = sp->fcport;
1126 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
1127 	struct event_arg ea;
1128 
1129 	ql_dbg(ql_dbg_disc, vha, 0x20db,
1130 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
1131 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
1132 
1133 	if (res == QLA_FUNCTION_TIMEOUT) {
1134 		dma_pool_free(sp->vha->hw->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
1135 			sp->u.iocb_cmd.u.mbx.in_dma);
1136 		return;
1137 	}
1138 
1139 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1140 	memset(&ea, 0, sizeof(ea));
1141 	ea.fcport = fcport;
1142 	ea.sp = sp;
1143 
1144 	qla24xx_handle_gpdb_event(vha, &ea);
1145 
1146 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
1147 		sp->u.iocb_cmd.u.mbx.in_dma);
1148 
1149 	sp->free(sp);
1150 }
1151 
1152 static int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1153 {
1154 	struct qla_work_evt *e;
1155 
1156 	e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
1157 	if (!e)
1158 		return QLA_FUNCTION_FAILED;
1159 
1160 	e->u.fcport.fcport = fcport;
1161 
1162 	return qla2x00_post_work(vha, e);
1163 }
1164 
1165 static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
1166 {
1167 	struct scsi_qla_host *vha = sp->vha;
1168 	struct srb_iocb *lio = &sp->u.iocb_cmd;
1169 	struct event_arg ea;
1170 
1171 	ql_dbg(ql_dbg_disc, vha, 0x2129,
1172 	    "%s %8phC res %d \n", __func__,
1173 	    sp->fcport->port_name, res);
1174 
1175 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
1176 
1177 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
1178 		memset(&ea, 0, sizeof(ea));
1179 		ea.fcport = sp->fcport;
1180 		ea.data[0] = lio->u.logio.data[0];
1181 		ea.data[1] = lio->u.logio.data[1];
1182 		ea.iop[0] = lio->u.logio.iop[0];
1183 		ea.iop[1] = lio->u.logio.iop[1];
1184 		ea.sp = sp;
1185 
1186 		qla24xx_handle_prli_done_event(vha, &ea);
1187 	}
1188 
1189 	sp->free(sp);
1190 }
1191 
1192 int
1193 qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
1194 {
1195 	srb_t *sp;
1196 	struct srb_iocb *lio;
1197 	int rval = QLA_FUNCTION_FAILED;
1198 
1199 	if (!vha->flags.online)
1200 		return rval;
1201 
1202 	if (fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
1203 	    fcport->fw_login_state == DSC_LS_PRLI_PEND)
1204 		return rval;
1205 
1206 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1207 	if (!sp)
1208 		return rval;
1209 
1210 	fcport->flags |= FCF_ASYNC_SENT;
1211 	fcport->logout_completed = 0;
1212 
1213 	sp->type = SRB_PRLI_CMD;
1214 	sp->name = "prli";
1215 
1216 	lio = &sp->u.iocb_cmd;
1217 	lio->timeout = qla2x00_async_iocb_timeout;
1218 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1219 
1220 	sp->done = qla2x00_async_prli_sp_done;
1221 	lio->u.logio.flags = 0;
1222 
1223 	if  (fcport->fc4f_nvme)
1224 		lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
1225 
1226 	ql_dbg(ql_dbg_disc, vha, 0x211b,
1227 	    "Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d %s.\n",
1228 	    fcport->port_name, sp->handle, fcport->loop_id, fcport->d_id.b24,
1229 	    fcport->login_retry, fcport->fc4f_nvme ? "nvme" : "fc");
1230 
1231 	rval = qla2x00_start_sp(sp);
1232 	if (rval != QLA_SUCCESS) {
1233 		fcport->flags |= FCF_LOGIN_NEEDED;
1234 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1235 		goto done_free_sp;
1236 	}
1237 
1238 	return rval;
1239 
1240 done_free_sp:
1241 	sp->free(sp);
1242 	fcport->flags &= ~FCF_ASYNC_SENT;
1243 	return rval;
1244 }
1245 
1246 int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1247 {
1248 	struct qla_work_evt *e;
1249 
1250 	e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
1251 	if (!e)
1252 		return QLA_FUNCTION_FAILED;
1253 
1254 	e->u.fcport.fcport = fcport;
1255 	e->u.fcport.opt = opt;
1256 	fcport->flags |= FCF_ASYNC_ACTIVE;
1257 	return qla2x00_post_work(vha, e);
1258 }
1259 
1260 int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1261 {
1262 	srb_t *sp;
1263 	struct srb_iocb *mbx;
1264 	int rval = QLA_FUNCTION_FAILED;
1265 	u16 *mb;
1266 	dma_addr_t pd_dma;
1267 	struct port_database_24xx *pd;
1268 	struct qla_hw_data *ha = vha->hw;
1269 
1270 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
1271 	    fcport->loop_id == FC_NO_LOOP_ID) {
1272 		ql_log(ql_log_warn, vha, 0xffff,
1273 		    "%s: %8phC - not sending command.\n",
1274 		    __func__, fcport->port_name);
1275 		return rval;
1276 	}
1277 
1278 	fcport->disc_state = DSC_GPDB;
1279 
1280 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1281 	if (!sp)
1282 		goto done;
1283 
1284 	fcport->flags |= FCF_ASYNC_SENT;
1285 	sp->type = SRB_MB_IOCB;
1286 	sp->name = "gpdb";
1287 	sp->gen1 = fcport->rscn_gen;
1288 	sp->gen2 = fcport->login_gen;
1289 
1290 	mbx = &sp->u.iocb_cmd;
1291 	mbx->timeout = qla2x00_async_iocb_timeout;
1292 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1293 
1294 	pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
1295 	if (pd == NULL) {
1296 		ql_log(ql_log_warn, vha, 0xd043,
1297 		    "Failed to allocate port database structure.\n");
1298 		goto done_free_sp;
1299 	}
1300 
1301 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1302 	mb[0] = MBC_GET_PORT_DATABASE;
1303 	mb[1] = fcport->loop_id;
1304 	mb[2] = MSW(pd_dma);
1305 	mb[3] = LSW(pd_dma);
1306 	mb[6] = MSW(MSD(pd_dma));
1307 	mb[7] = LSW(MSD(pd_dma));
1308 	mb[9] = vha->vp_idx;
1309 	mb[10] = opt;
1310 
1311 	mbx->u.mbx.in = (void *)pd;
1312 	mbx->u.mbx.in_dma = pd_dma;
1313 
1314 	sp->done = qla24xx_async_gpdb_sp_done;
1315 
1316 	ql_dbg(ql_dbg_disc, vha, 0x20dc,
1317 	    "Async-%s %8phC hndl %x opt %x\n",
1318 	    sp->name, fcport->port_name, sp->handle, opt);
1319 
1320 	rval = qla2x00_start_sp(sp);
1321 	if (rval != QLA_SUCCESS)
1322 		goto done_free_sp;
1323 	return rval;
1324 
1325 done_free_sp:
1326 	if (pd)
1327 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
1328 
1329 	sp->free(sp);
1330 	fcport->flags &= ~FCF_ASYNC_SENT;
1331 done:
1332 	qla24xx_post_gpdb_work(vha, fcport, opt);
1333 	return rval;
1334 }
1335 
1336 static
1337 void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1338 {
1339 	unsigned long flags;
1340 
1341 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1342 	ea->fcport->login_gen++;
1343 	ea->fcport->deleted = 0;
1344 	ea->fcport->logout_on_delete = 1;
1345 
1346 	if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
1347 		vha->fcport_count++;
1348 		ea->fcport->login_succ = 1;
1349 
1350 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1351 		qla24xx_sched_upd_fcport(ea->fcport);
1352 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1353 	} else if (ea->fcport->login_succ) {
1354 		/*
1355 		 * We have an existing session. A late RSCN delivery
1356 		 * must have triggered the session to be re-validate.
1357 		 * Session is still valid.
1358 		 */
1359 		ql_dbg(ql_dbg_disc, vha, 0x20d6,
1360 		    "%s %d %8phC session revalidate success\n",
1361 		    __func__, __LINE__, ea->fcport->port_name);
1362 		ea->fcport->disc_state = DSC_LOGIN_COMPLETE;
1363 	}
1364 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1365 }
1366 
1367 static
1368 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1369 {
1370 	fc_port_t *fcport = ea->fcport;
1371 	struct port_database_24xx *pd;
1372 	struct srb *sp = ea->sp;
1373 	uint8_t	ls;
1374 
1375 	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
1376 
1377 	fcport->flags &= ~FCF_ASYNC_SENT;
1378 
1379 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
1380 	    "%s %8phC DS %d LS %d nvme %x rc %d\n", __func__, fcport->port_name,
1381 	    fcport->disc_state, pd->current_login_state, fcport->fc4f_nvme,
1382 	    ea->rc);
1383 
1384 	if (fcport->disc_state == DSC_DELETE_PEND)
1385 		return;
1386 
1387 	if (fcport->fc4f_nvme)
1388 		ls = pd->current_login_state >> 4;
1389 	else
1390 		ls = pd->current_login_state & 0xf;
1391 
1392 	if (ea->sp->gen2 != fcport->login_gen) {
1393 		/* target side must have changed it. */
1394 
1395 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1396 		    "%s %8phC generation changed\n",
1397 		    __func__, fcport->port_name);
1398 		return;
1399 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1400 		qla_rscn_replay(fcport);
1401 		qlt_schedule_sess_for_deletion(fcport);
1402 		return;
1403 	}
1404 
1405 	switch (ls) {
1406 	case PDS_PRLI_COMPLETE:
1407 		__qla24xx_parse_gpdb(vha, fcport, pd);
1408 		break;
1409 	case PDS_PLOGI_PENDING:
1410 	case PDS_PLOGI_COMPLETE:
1411 	case PDS_PRLI_PENDING:
1412 	case PDS_PRLI2_PENDING:
1413 		/* Set discovery state back to GNL to Relogin attempt */
1414 		if (qla_dual_mode_enabled(vha) ||
1415 		    qla_ini_mode_enabled(vha)) {
1416 			fcport->disc_state = DSC_GNL;
1417 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1418 		}
1419 		return;
1420 	case PDS_LOGO_PENDING:
1421 	case PDS_PORT_UNAVAILABLE:
1422 	default:
1423 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
1424 		    __func__, __LINE__, fcport->port_name);
1425 		qlt_schedule_sess_for_deletion(fcport);
1426 		return;
1427 	}
1428 	__qla24xx_handle_gpdb_event(vha, ea);
1429 } /* gpdb event */
1430 
1431 static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1432 {
1433 	u8 login = 0;
1434 	int rc;
1435 
1436 	if (qla_tgt_mode_enabled(vha))
1437 		return;
1438 
1439 	if (qla_dual_mode_enabled(vha)) {
1440 		if (N2N_TOPO(vha->hw)) {
1441 			u64 mywwn, wwn;
1442 
1443 			mywwn = wwn_to_u64(vha->port_name);
1444 			wwn = wwn_to_u64(fcport->port_name);
1445 			if (mywwn > wwn)
1446 				login = 1;
1447 			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1448 			    && time_after_eq(jiffies,
1449 				    fcport->plogi_nack_done_deadline))
1450 				login = 1;
1451 		} else {
1452 			login = 1;
1453 		}
1454 	} else {
1455 		/* initiator mode */
1456 		login = 1;
1457 	}
1458 
1459 	if (login && fcport->login_retry) {
1460 		fcport->login_retry--;
1461 		if (fcport->loop_id == FC_NO_LOOP_ID) {
1462 			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
1463 			rc = qla2x00_find_new_loop_id(vha, fcport);
1464 			if (rc) {
1465 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
1466 				    "%s %d %8phC post del sess - out of loopid\n",
1467 				    __func__, __LINE__, fcport->port_name);
1468 				fcport->scan_state = 0;
1469 				qlt_schedule_sess_for_deletion(fcport);
1470 				return;
1471 			}
1472 		}
1473 		ql_dbg(ql_dbg_disc, vha, 0x20bf,
1474 		    "%s %d %8phC post login\n",
1475 		    __func__, __LINE__, fcport->port_name);
1476 		qla2x00_post_async_login_work(vha, fcport, NULL);
1477 	}
1478 }
1479 
1480 int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1481 {
1482 	u16 data[2];
1483 	u64 wwn;
1484 	u16 sec;
1485 
1486 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
1487 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d\n",
1488 	    __func__, fcport->port_name, fcport->disc_state,
1489 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
1490 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
1491 	    fcport->login_gen, fcport->loop_id, fcport->scan_state);
1492 
1493 	if (fcport->scan_state != QLA_FCPORT_FOUND)
1494 		return 0;
1495 
1496 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
1497 	    qla_dual_mode_enabled(vha) &&
1498 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1499 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
1500 		return 0;
1501 
1502 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
1503 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1504 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1505 			return 0;
1506 		}
1507 	}
1508 
1509 	/* for pure Target Mode. Login will not be initiated */
1510 	if (vha->host->active_mode == MODE_TARGET)
1511 		return 0;
1512 
1513 	if (fcport->flags & FCF_ASYNC_SENT) {
1514 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1515 		return 0;
1516 	}
1517 
1518 	switch (fcport->disc_state) {
1519 	case DSC_DELETED:
1520 		wwn = wwn_to_u64(fcport->node_name);
1521 		switch (vha->hw->current_topology) {
1522 		case ISP_CFG_N:
1523 			if (fcport_is_smaller(fcport)) {
1524 				/* this adapter is bigger */
1525 				if (fcport->login_retry) {
1526 					if (fcport->loop_id == FC_NO_LOOP_ID) {
1527 						qla2x00_find_new_loop_id(vha,
1528 						    fcport);
1529 						fcport->fw_login_state =
1530 						    DSC_LS_PORT_UNAVAIL;
1531 					}
1532 					fcport->login_retry--;
1533 					qla_post_els_plogi_work(vha, fcport);
1534 				} else {
1535 					ql_log(ql_log_info, vha, 0x705d,
1536 					    "Unable to reach remote port %8phC",
1537 					    fcport->port_name);
1538 				}
1539 			} else {
1540 				qla24xx_post_gnl_work(vha, fcport);
1541 			}
1542 			break;
1543 		default:
1544 			if (wwn == 0)    {
1545 				ql_dbg(ql_dbg_disc, vha, 0xffff,
1546 				    "%s %d %8phC post GNNID\n",
1547 				    __func__, __LINE__, fcport->port_name);
1548 				qla24xx_post_gnnid_work(vha, fcport);
1549 			} else if (fcport->loop_id == FC_NO_LOOP_ID) {
1550 				ql_dbg(ql_dbg_disc, vha, 0x20bd,
1551 				    "%s %d %8phC post gnl\n",
1552 				    __func__, __LINE__, fcport->port_name);
1553 				qla24xx_post_gnl_work(vha, fcport);
1554 			} else {
1555 				qla_chk_n2n_b4_login(vha, fcport);
1556 			}
1557 			break;
1558 		}
1559 		break;
1560 
1561 	case DSC_GNL:
1562 		switch (vha->hw->current_topology) {
1563 		case ISP_CFG_N:
1564 			if ((fcport->current_login_state & 0xf) == 0x6) {
1565 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1566 				    "%s %d %8phC post GPDB work\n",
1567 				    __func__, __LINE__, fcport->port_name);
1568 				fcport->chip_reset =
1569 					vha->hw->base_qpair->chip_reset;
1570 				qla24xx_post_gpdb_work(vha, fcport, 0);
1571 			}  else {
1572 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1573 				    "%s %d %8phC post NVMe PRLI\n",
1574 				    __func__, __LINE__, fcport->port_name);
1575 				qla24xx_post_prli_work(vha, fcport);
1576 			}
1577 			break;
1578 		default:
1579 			if (fcport->login_pause) {
1580 				fcport->last_rscn_gen = fcport->rscn_gen;
1581 				fcport->last_login_gen = fcport->login_gen;
1582 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1583 				break;
1584 			}
1585 			qla_chk_n2n_b4_login(vha, fcport);
1586 			break;
1587 		}
1588 		break;
1589 
1590 	case DSC_LOGIN_FAILED:
1591 		if (N2N_TOPO(vha->hw))
1592 			qla_chk_n2n_b4_login(vha, fcport);
1593 		else
1594 			qlt_schedule_sess_for_deletion(fcport);
1595 		break;
1596 
1597 	case DSC_LOGIN_COMPLETE:
1598 		/* recheck login state */
1599 		data[0] = data[1] = 0;
1600 		qla2x00_post_async_adisc_work(vha, fcport, data);
1601 		break;
1602 
1603 	case DSC_LOGIN_PEND:
1604 		if (fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1605 			qla24xx_post_prli_work(vha, fcport);
1606 		break;
1607 
1608 	case DSC_UPD_FCPORT:
1609 		sec =  jiffies_to_msecs(jiffies -
1610 		    fcport->jiffies_at_registration)/1000;
1611 		if (fcport->sec_since_registration < sec && sec &&
1612 		    !(sec % 60)) {
1613 			fcport->sec_since_registration = sec;
1614 			ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
1615 			    "%s %8phC - Slow Rport registration(%d Sec)\n",
1616 			    __func__, fcport->port_name, sec);
1617 		}
1618 
1619 		if (fcport->next_disc_state != DSC_DELETE_PEND)
1620 			fcport->next_disc_state = DSC_ADISC;
1621 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1622 		break;
1623 
1624 	default:
1625 		break;
1626 	}
1627 
1628 	return 0;
1629 }
1630 
1631 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
1632     u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
1633 {
1634 	struct qla_work_evt *e;
1635 
1636 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
1637 	if (!e)
1638 		return QLA_FUNCTION_FAILED;
1639 
1640 	e->u.new_sess.id = *id;
1641 	e->u.new_sess.pla = pla;
1642 	e->u.new_sess.fc4_type = fc4_type;
1643 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
1644 	if (node_name)
1645 		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
1646 
1647 	return qla2x00_post_work(vha, e);
1648 }
1649 
1650 void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
1651 {
1652 	fc_port_t *fcport;
1653 	unsigned long flags;
1654 
1655 	fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
1656 	if (fcport) {
1657 		fcport->scan_needed = 1;
1658 		fcport->rscn_gen++;
1659 	}
1660 
1661 	spin_lock_irqsave(&vha->work_lock, flags);
1662 	if (vha->scan.scan_flags == 0) {
1663 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
1664 		vha->scan.scan_flags |= SF_QUEUED;
1665 		schedule_delayed_work(&vha->scan.scan_work, 5);
1666 	}
1667 	spin_unlock_irqrestore(&vha->work_lock, flags);
1668 }
1669 
1670 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
1671 	struct event_arg *ea)
1672 {
1673 	fc_port_t *fcport = ea->fcport;
1674 
1675 	if (test_bit(UNLOADING, &vha->dpc_flags))
1676 		return;
1677 
1678 	ql_dbg(ql_dbg_disc, vha, 0x2102,
1679 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
1680 	    __func__, fcport->port_name, fcport->disc_state,
1681 	    fcport->fw_login_state, fcport->login_pause,
1682 	    fcport->deleted, fcport->conflict,
1683 	    fcport->last_rscn_gen, fcport->rscn_gen,
1684 	    fcport->last_login_gen, fcport->login_gen,
1685 	    fcport->flags);
1686 
1687 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
1688 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
1689 		    __func__, __LINE__, fcport->port_name);
1690 		qla24xx_post_gnl_work(vha, fcport);
1691 		return;
1692 	}
1693 
1694 	qla24xx_fcport_handle_login(vha, fcport);
1695 }
1696 
1697 /*
1698  * RSCN(s) came in for this fcport, but the RSCN(s) was not able
1699  * to be consumed by the fcport
1700  */
1701 void qla_rscn_replay(fc_port_t *fcport)
1702 {
1703 	struct event_arg ea;
1704 
1705 	switch (fcport->disc_state) {
1706 	case DSC_DELETE_PEND:
1707 		return;
1708 	default:
1709 		break;
1710 	}
1711 
1712 	if (fcport->scan_needed) {
1713 		memset(&ea, 0, sizeof(ea));
1714 		ea.id = fcport->d_id;
1715 		ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
1716 		qla2x00_handle_rscn(fcport->vha, &ea);
1717 	}
1718 }
1719 
1720 static void
1721 qla2x00_tmf_iocb_timeout(void *data)
1722 {
1723 	srb_t *sp = data;
1724 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1725 
1726 	tmf->u.tmf.comp_status = CS_TIMEOUT;
1727 	complete(&tmf->u.tmf.comp);
1728 }
1729 
1730 static void qla2x00_tmf_sp_done(srb_t *sp, int res)
1731 {
1732 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1733 
1734 	complete(&tmf->u.tmf.comp);
1735 }
1736 
1737 int
1738 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
1739 	uint32_t tag)
1740 {
1741 	struct scsi_qla_host *vha = fcport->vha;
1742 	struct srb_iocb *tm_iocb;
1743 	srb_t *sp;
1744 	int rval = QLA_FUNCTION_FAILED;
1745 
1746 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1747 	if (!sp)
1748 		goto done;
1749 
1750 	tm_iocb = &sp->u.iocb_cmd;
1751 	sp->type = SRB_TM_CMD;
1752 	sp->name = "tmf";
1753 
1754 	tm_iocb->timeout = qla2x00_tmf_iocb_timeout;
1755 	init_completion(&tm_iocb->u.tmf.comp);
1756 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
1757 
1758 	tm_iocb->u.tmf.flags = flags;
1759 	tm_iocb->u.tmf.lun = lun;
1760 	tm_iocb->u.tmf.data = tag;
1761 	sp->done = qla2x00_tmf_sp_done;
1762 
1763 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
1764 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
1765 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
1766 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
1767 
1768 	rval = qla2x00_start_sp(sp);
1769 	if (rval != QLA_SUCCESS)
1770 		goto done_free_sp;
1771 	wait_for_completion(&tm_iocb->u.tmf.comp);
1772 
1773 	rval = tm_iocb->u.tmf.data;
1774 
1775 	if (rval != QLA_SUCCESS) {
1776 		ql_log(ql_log_warn, vha, 0x8030,
1777 		    "TM IOCB failed (%x).\n", rval);
1778 	}
1779 
1780 	if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
1781 		flags = tm_iocb->u.tmf.flags;
1782 		lun = (uint16_t)tm_iocb->u.tmf.lun;
1783 
1784 		/* Issue Marker IOCB */
1785 		qla2x00_marker(vha, vha->hw->base_qpair,
1786 		    fcport->loop_id, lun,
1787 		    flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
1788 	}
1789 
1790 done_free_sp:
1791 	sp->free(sp);
1792 	fcport->flags &= ~FCF_ASYNC_SENT;
1793 done:
1794 	return rval;
1795 }
1796 
1797 int
1798 qla24xx_async_abort_command(srb_t *sp)
1799 {
1800 	unsigned long   flags = 0;
1801 
1802 	uint32_t	handle;
1803 	fc_port_t	*fcport = sp->fcport;
1804 	struct qla_qpair *qpair = sp->qpair;
1805 	struct scsi_qla_host *vha = fcport->vha;
1806 	struct req_que *req = qpair->req;
1807 
1808 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1809 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
1810 		if (req->outstanding_cmds[handle] == sp)
1811 			break;
1812 	}
1813 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1814 
1815 	if (handle == req->num_outstanding_cmds) {
1816 		/* Command not found. */
1817 		return QLA_FUNCTION_FAILED;
1818 	}
1819 	if (sp->type == SRB_FXIOCB_DCMD)
1820 		return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1821 		    FXDISC_ABORT_IOCTL);
1822 
1823 	return qla24xx_async_abort_cmd(sp, true);
1824 }
1825 
1826 static void
1827 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1828 {
1829 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
1830 		  ea->data[0]);
1831 
1832 	switch (ea->data[0]) {
1833 	case MBS_COMMAND_COMPLETE:
1834 		ql_dbg(ql_dbg_disc, vha, 0x2118,
1835 		    "%s %d %8phC post gpdb\n",
1836 		    __func__, __LINE__, ea->fcport->port_name);
1837 
1838 		ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
1839 		ea->fcport->logout_on_delete = 1;
1840 		ea->fcport->nvme_prli_service_param = ea->iop[0];
1841 		if (ea->iop[0] & NVME_PRLI_SP_FIRST_BURST)
1842 			ea->fcport->nvme_first_burst_size =
1843 			    (ea->iop[1] & 0xffff) * 512;
1844 		else
1845 			ea->fcport->nvme_first_burst_size = 0;
1846 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1847 		break;
1848 	default:
1849 		if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) &&
1850 		    (ea->iop[1] == 0x50000)) {   /* reson 5=busy expl:0x0 */
1851 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1852 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
1853 			break;
1854 		}
1855 
1856 		if (ea->fcport->n2n_flag) {
1857 			ql_dbg(ql_dbg_disc, vha, 0x2118,
1858 				"%s %d %8phC post fc4 prli\n",
1859 				__func__, __LINE__, ea->fcport->port_name);
1860 			ea->fcport->fc4f_nvme = 0;
1861 			ea->fcport->n2n_flag = 0;
1862 			qla24xx_post_prli_work(vha, ea->fcport);
1863 		}
1864 		ql_dbg(ql_dbg_disc, vha, 0x2119,
1865 		    "%s %d %8phC unhandle event of %x\n",
1866 		    __func__, __LINE__, ea->fcport->port_name, ea->data[0]);
1867 		break;
1868 	}
1869 }
1870 
1871 void
1872 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1873 {
1874 	port_id_t cid;	/* conflict Nport id */
1875 	u16 lid;
1876 	struct fc_port *conflict_fcport;
1877 	unsigned long flags;
1878 	struct fc_port *fcport = ea->fcport;
1879 
1880 	ql_dbg(ql_dbg_disc, vha, 0xffff,
1881 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
1882 	    __func__, fcport->port_name, fcport->disc_state,
1883 	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
1884 	    ea->sp->gen1, fcport->rscn_gen,
1885 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
1886 
1887 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1888 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
1889 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
1890 		    "%s %d %8phC Remote is trying to login\n",
1891 		    __func__, __LINE__, fcport->port_name);
1892 		return;
1893 	}
1894 
1895 	if ((fcport->disc_state == DSC_DELETE_PEND) ||
1896 	    (fcport->disc_state == DSC_DELETED)) {
1897 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1898 		return;
1899 	}
1900 
1901 	if (ea->sp->gen2 != fcport->login_gen) {
1902 		/* target side must have changed it. */
1903 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1904 		    "%s %8phC generation changed\n",
1905 		    __func__, fcport->port_name);
1906 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1907 		return;
1908 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1909 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1910 		    "%s %8phC RSCN generation changed\n",
1911 		    __func__, fcport->port_name);
1912 		qla_rscn_replay(fcport);
1913 		qlt_schedule_sess_for_deletion(fcport);
1914 		return;
1915 	}
1916 
1917 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
1918 		  ea->data[0]);
1919 
1920 	switch (ea->data[0]) {
1921 	case MBS_COMMAND_COMPLETE:
1922 		/*
1923 		 * Driver must validate login state - If PRLI not complete,
1924 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
1925 		 * requests.
1926 		 */
1927 		if (ea->fcport->fc4f_nvme) {
1928 			ql_dbg(ql_dbg_disc, vha, 0x2117,
1929 				"%s %d %8phC post prli\n",
1930 				__func__, __LINE__, ea->fcport->port_name);
1931 			qla24xx_post_prli_work(vha, ea->fcport);
1932 		} else {
1933 			ql_dbg(ql_dbg_disc, vha, 0x20ea,
1934 			    "%s %d %8phC LoopID 0x%x in use with %06x. post gnl\n",
1935 			    __func__, __LINE__, ea->fcport->port_name,
1936 			    ea->fcport->loop_id, ea->fcport->d_id.b24);
1937 
1938 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
1939 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1940 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
1941 			ea->fcport->logout_on_delete = 1;
1942 			ea->fcport->send_els_logo = 0;
1943 			ea->fcport->fw_login_state = DSC_LS_PRLI_COMP;
1944 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1945 
1946 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1947 		}
1948 		break;
1949 	case MBS_COMMAND_ERROR:
1950 		ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
1951 		    __func__, __LINE__, ea->fcport->port_name, ea->data[1]);
1952 
1953 		ea->fcport->flags &= ~FCF_ASYNC_SENT;
1954 		ea->fcport->disc_state = DSC_LOGIN_FAILED;
1955 		if (ea->data[1] & QLA_LOGIO_LOGIN_RETRIED)
1956 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1957 		else
1958 			qla2x00_mark_device_lost(vha, ea->fcport, 1, 0);
1959 		break;
1960 	case MBS_LOOP_ID_USED:
1961 		/* data[1] = IO PARAM 1 = nport ID  */
1962 		cid.b.domain = (ea->iop[1] >> 16) & 0xff;
1963 		cid.b.area   = (ea->iop[1] >>  8) & 0xff;
1964 		cid.b.al_pa  = ea->iop[1] & 0xff;
1965 		cid.b.rsvd_1 = 0;
1966 
1967 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
1968 		    "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
1969 		    __func__, __LINE__, ea->fcport->port_name,
1970 		    ea->fcport->loop_id, cid.b24);
1971 
1972 		set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
1973 		ea->fcport->loop_id = FC_NO_LOOP_ID;
1974 		qla24xx_post_gnl_work(vha, ea->fcport);
1975 		break;
1976 	case MBS_PORT_ID_USED:
1977 		lid = ea->iop[1] & 0xffff;
1978 		qlt_find_sess_invalidate_other(vha,
1979 		    wwn_to_u64(ea->fcport->port_name),
1980 		    ea->fcport->d_id, lid, &conflict_fcport);
1981 
1982 		if (conflict_fcport) {
1983 			/*
1984 			 * Another fcport share the same loop_id/nport id.
1985 			 * Conflict fcport needs to finish cleanup before this
1986 			 * fcport can proceed to login.
1987 			 */
1988 			conflict_fcport->conflict = ea->fcport;
1989 			ea->fcport->login_pause = 1;
1990 
1991 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
1992 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
1993 			    __func__, __LINE__, ea->fcport->port_name,
1994 			    ea->fcport->d_id.b24, lid);
1995 		} else {
1996 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
1997 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
1998 			    __func__, __LINE__, ea->fcport->port_name,
1999 			    ea->fcport->d_id.b24, lid);
2000 
2001 			qla2x00_clear_loop_id(ea->fcport);
2002 			set_bit(lid, vha->hw->loop_id_map);
2003 			ea->fcport->loop_id = lid;
2004 			ea->fcport->keep_nport_handle = 0;
2005 			qlt_schedule_sess_for_deletion(ea->fcport);
2006 		}
2007 		break;
2008 	}
2009 	return;
2010 }
2011 
2012 void
2013 qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
2014     uint16_t *data)
2015 {
2016 	qlt_logo_completion_handler(fcport, data[0]);
2017 	fcport->login_gen++;
2018 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
2019 	return;
2020 }
2021 
2022 /****************************************************************************/
2023 /*                QLogic ISP2x00 Hardware Support Functions.                */
2024 /****************************************************************************/
2025 
2026 static int
2027 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
2028 {
2029 	int rval = QLA_SUCCESS;
2030 	struct qla_hw_data *ha = vha->hw;
2031 	uint32_t idc_major_ver, idc_minor_ver;
2032 	uint16_t config[4];
2033 
2034 	qla83xx_idc_lock(vha, 0);
2035 
2036 	/* SV: TODO: Assign initialization timeout from
2037 	 * flash-info / other param
2038 	 */
2039 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
2040 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
2041 
2042 	/* Set our fcoe function presence */
2043 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
2044 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
2045 		    "Error while setting DRV-Presence.\n");
2046 		rval = QLA_FUNCTION_FAILED;
2047 		goto exit;
2048 	}
2049 
2050 	/* Decide the reset ownership */
2051 	qla83xx_reset_ownership(vha);
2052 
2053 	/*
2054 	 * On first protocol driver load:
2055 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
2056 	 * register.
2057 	 * Others: Check compatibility with current IDC Major version.
2058 	 */
2059 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
2060 	if (ha->flags.nic_core_reset_owner) {
2061 		/* Set IDC Major version */
2062 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
2063 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
2064 
2065 		/* Clearing IDC-Lock-Recovery register */
2066 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
2067 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
2068 		/*
2069 		 * Clear further IDC participation if we are not compatible with
2070 		 * the current IDC Major Version.
2071 		 */
2072 		ql_log(ql_log_warn, vha, 0xb07d,
2073 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
2074 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
2075 		__qla83xx_clear_drv_presence(vha);
2076 		rval = QLA_FUNCTION_FAILED;
2077 		goto exit;
2078 	}
2079 	/* Each function sets its supported Minor version. */
2080 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
2081 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
2082 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
2083 
2084 	if (ha->flags.nic_core_reset_owner) {
2085 		memset(config, 0, sizeof(config));
2086 		if (!qla81xx_get_port_config(vha, config))
2087 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
2088 			    QLA8XXX_DEV_READY);
2089 	}
2090 
2091 	rval = qla83xx_idc_state_handler(vha);
2092 
2093 exit:
2094 	qla83xx_idc_unlock(vha, 0);
2095 
2096 	return rval;
2097 }
2098 
2099 /*
2100 * qla2x00_initialize_adapter
2101 *      Initialize board.
2102 *
2103 * Input:
2104 *      ha = adapter block pointer.
2105 *
2106 * Returns:
2107 *      0 = success
2108 */
2109 int
2110 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
2111 {
2112 	int	rval;
2113 	struct qla_hw_data *ha = vha->hw;
2114 	struct req_que *req = ha->req_q_map[0];
2115 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2116 
2117 	memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
2118 	memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
2119 
2120 	/* Clear adapter flags. */
2121 	vha->flags.online = 0;
2122 	ha->flags.chip_reset_done = 0;
2123 	vha->flags.reset_active = 0;
2124 	ha->flags.pci_channel_io_perm_failure = 0;
2125 	ha->flags.eeh_busy = 0;
2126 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
2127 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2128 	atomic_set(&vha->loop_state, LOOP_DOWN);
2129 	vha->device_flags = DFLG_NO_CABLE;
2130 	vha->dpc_flags = 0;
2131 	vha->flags.management_server_logged_in = 0;
2132 	vha->marker_needed = 0;
2133 	ha->isp_abort_cnt = 0;
2134 	ha->beacon_blink_led = 0;
2135 
2136 	set_bit(0, ha->req_qid_map);
2137 	set_bit(0, ha->rsp_qid_map);
2138 
2139 	ql_dbg(ql_dbg_init, vha, 0x0040,
2140 	    "Configuring PCI space...\n");
2141 	rval = ha->isp_ops->pci_config(vha);
2142 	if (rval) {
2143 		ql_log(ql_log_warn, vha, 0x0044,
2144 		    "Unable to configure PCI space.\n");
2145 		return (rval);
2146 	}
2147 
2148 	ha->isp_ops->reset_chip(vha);
2149 
2150 	/* Check for secure flash support */
2151 	if (IS_QLA28XX(ha)) {
2152 		if (RD_REG_DWORD(&reg->mailbox12) & BIT_0) {
2153 			ql_log(ql_log_info, vha, 0xffff, "Adapter is Secure\n");
2154 			ha->flags.secure_adapter = 1;
2155 		}
2156 	}
2157 
2158 
2159 	rval = qla2xxx_get_flash_info(vha);
2160 	if (rval) {
2161 		ql_log(ql_log_fatal, vha, 0x004f,
2162 		    "Unable to validate FLASH data.\n");
2163 		return rval;
2164 	}
2165 
2166 	if (IS_QLA8044(ha)) {
2167 		qla8044_read_reset_template(vha);
2168 
2169 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
2170 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
2171 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
2172 		 * should honor the reset. */
2173 		if (ql2xdontresethba == 1)
2174 			qla8044_set_idc_dontreset(vha);
2175 	}
2176 
2177 	ha->isp_ops->get_flash_version(vha, req->ring);
2178 	ql_dbg(ql_dbg_init, vha, 0x0061,
2179 	    "Configure NVRAM parameters...\n");
2180 
2181 	ha->isp_ops->nvram_config(vha);
2182 
2183 	if (ha->flags.disable_serdes) {
2184 		/* Mask HBA via NVRAM settings? */
2185 		ql_log(ql_log_info, vha, 0x0077,
2186 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
2187 		return QLA_FUNCTION_FAILED;
2188 	}
2189 
2190 	ql_dbg(ql_dbg_init, vha, 0x0078,
2191 	    "Verifying loaded RISC code...\n");
2192 
2193 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
2194 		rval = ha->isp_ops->chip_diag(vha);
2195 		if (rval)
2196 			return (rval);
2197 		rval = qla2x00_setup_chip(vha);
2198 		if (rval)
2199 			return (rval);
2200 	}
2201 
2202 	if (IS_QLA84XX(ha)) {
2203 		ha->cs84xx = qla84xx_get_chip(vha);
2204 		if (!ha->cs84xx) {
2205 			ql_log(ql_log_warn, vha, 0x00d0,
2206 			    "Unable to configure ISP84XX.\n");
2207 			return QLA_FUNCTION_FAILED;
2208 		}
2209 	}
2210 
2211 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
2212 		rval = qla2x00_init_rings(vha);
2213 
2214 	/* No point in continuing if firmware initialization failed. */
2215 	if (rval != QLA_SUCCESS)
2216 		return rval;
2217 
2218 	ha->flags.chip_reset_done = 1;
2219 
2220 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
2221 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
2222 		rval = qla84xx_init_chip(vha);
2223 		if (rval != QLA_SUCCESS) {
2224 			ql_log(ql_log_warn, vha, 0x00d4,
2225 			    "Unable to initialize ISP84XX.\n");
2226 			qla84xx_put_chip(vha);
2227 		}
2228 	}
2229 
2230 	/* Load the NIC Core f/w if we are the first protocol driver. */
2231 	if (IS_QLA8031(ha)) {
2232 		rval = qla83xx_nic_core_fw_load(vha);
2233 		if (rval)
2234 			ql_log(ql_log_warn, vha, 0x0124,
2235 			    "Error in initializing NIC Core f/w.\n");
2236 	}
2237 
2238 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
2239 		qla24xx_read_fcp_prio_cfg(vha);
2240 
2241 	if (IS_P3P_TYPE(ha))
2242 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
2243 	else
2244 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
2245 
2246 	return (rval);
2247 }
2248 
2249 /**
2250  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
2251  * @vha: HA context
2252  *
2253  * Returns 0 on success.
2254  */
2255 int
2256 qla2100_pci_config(scsi_qla_host_t *vha)
2257 {
2258 	uint16_t w;
2259 	unsigned long flags;
2260 	struct qla_hw_data *ha = vha->hw;
2261 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2262 
2263 	pci_set_master(ha->pdev);
2264 	pci_try_set_mwi(ha->pdev);
2265 
2266 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2267 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2268 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2269 
2270 	pci_disable_rom(ha->pdev);
2271 
2272 	/* Get PCI bus information. */
2273 	spin_lock_irqsave(&ha->hardware_lock, flags);
2274 	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
2275 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2276 
2277 	return QLA_SUCCESS;
2278 }
2279 
2280 /**
2281  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
2282  * @vha: HA context
2283  *
2284  * Returns 0 on success.
2285  */
2286 int
2287 qla2300_pci_config(scsi_qla_host_t *vha)
2288 {
2289 	uint16_t	w;
2290 	unsigned long   flags = 0;
2291 	uint32_t	cnt;
2292 	struct qla_hw_data *ha = vha->hw;
2293 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2294 
2295 	pci_set_master(ha->pdev);
2296 	pci_try_set_mwi(ha->pdev);
2297 
2298 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2299 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2300 
2301 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
2302 		w &= ~PCI_COMMAND_INTX_DISABLE;
2303 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2304 
2305 	/*
2306 	 * If this is a 2300 card and not 2312, reset the
2307 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
2308 	 * the 2310 also reports itself as a 2300 so we need to get the
2309 	 * fb revision level -- a 6 indicates it really is a 2300 and
2310 	 * not a 2310.
2311 	 */
2312 	if (IS_QLA2300(ha)) {
2313 		spin_lock_irqsave(&ha->hardware_lock, flags);
2314 
2315 		/* Pause RISC. */
2316 		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
2317 		for (cnt = 0; cnt < 30000; cnt++) {
2318 			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
2319 				break;
2320 
2321 			udelay(10);
2322 		}
2323 
2324 		/* Select FPM registers. */
2325 		WRT_REG_WORD(&reg->ctrl_status, 0x20);
2326 		RD_REG_WORD(&reg->ctrl_status);
2327 
2328 		/* Get the fb rev level */
2329 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
2330 
2331 		if (ha->fb_rev == FPM_2300)
2332 			pci_clear_mwi(ha->pdev);
2333 
2334 		/* Deselect FPM registers. */
2335 		WRT_REG_WORD(&reg->ctrl_status, 0x0);
2336 		RD_REG_WORD(&reg->ctrl_status);
2337 
2338 		/* Release RISC module. */
2339 		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2340 		for (cnt = 0; cnt < 30000; cnt++) {
2341 			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
2342 				break;
2343 
2344 			udelay(10);
2345 		}
2346 
2347 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
2348 	}
2349 
2350 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2351 
2352 	pci_disable_rom(ha->pdev);
2353 
2354 	/* Get PCI bus information. */
2355 	spin_lock_irqsave(&ha->hardware_lock, flags);
2356 	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
2357 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2358 
2359 	return QLA_SUCCESS;
2360 }
2361 
2362 /**
2363  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
2364  * @vha: HA context
2365  *
2366  * Returns 0 on success.
2367  */
2368 int
2369 qla24xx_pci_config(scsi_qla_host_t *vha)
2370 {
2371 	uint16_t w;
2372 	unsigned long flags = 0;
2373 	struct qla_hw_data *ha = vha->hw;
2374 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2375 
2376 	pci_set_master(ha->pdev);
2377 	pci_try_set_mwi(ha->pdev);
2378 
2379 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2380 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2381 	w &= ~PCI_COMMAND_INTX_DISABLE;
2382 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2383 
2384 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2385 
2386 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
2387 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
2388 		pcix_set_mmrbc(ha->pdev, 2048);
2389 
2390 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2391 	if (pci_is_pcie(ha->pdev))
2392 		pcie_set_readrq(ha->pdev, 4096);
2393 
2394 	pci_disable_rom(ha->pdev);
2395 
2396 	ha->chip_revision = ha->pdev->revision;
2397 
2398 	/* Get PCI bus information. */
2399 	spin_lock_irqsave(&ha->hardware_lock, flags);
2400 	ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
2401 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2402 
2403 	return QLA_SUCCESS;
2404 }
2405 
2406 /**
2407  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
2408  * @vha: HA context
2409  *
2410  * Returns 0 on success.
2411  */
2412 int
2413 qla25xx_pci_config(scsi_qla_host_t *vha)
2414 {
2415 	uint16_t w;
2416 	struct qla_hw_data *ha = vha->hw;
2417 
2418 	pci_set_master(ha->pdev);
2419 	pci_try_set_mwi(ha->pdev);
2420 
2421 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2422 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2423 	w &= ~PCI_COMMAND_INTX_DISABLE;
2424 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2425 
2426 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2427 	if (pci_is_pcie(ha->pdev))
2428 		pcie_set_readrq(ha->pdev, 4096);
2429 
2430 	pci_disable_rom(ha->pdev);
2431 
2432 	ha->chip_revision = ha->pdev->revision;
2433 
2434 	return QLA_SUCCESS;
2435 }
2436 
2437 /**
2438  * qla2x00_isp_firmware() - Choose firmware image.
2439  * @vha: HA context
2440  *
2441  * Returns 0 on success.
2442  */
2443 static int
2444 qla2x00_isp_firmware(scsi_qla_host_t *vha)
2445 {
2446 	int  rval;
2447 	uint16_t loop_id, topo, sw_cap;
2448 	uint8_t domain, area, al_pa;
2449 	struct qla_hw_data *ha = vha->hw;
2450 
2451 	/* Assume loading risc code */
2452 	rval = QLA_FUNCTION_FAILED;
2453 
2454 	if (ha->flags.disable_risc_code_load) {
2455 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
2456 
2457 		/* Verify checksum of loaded RISC code. */
2458 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
2459 		if (rval == QLA_SUCCESS) {
2460 			/* And, verify we are not in ROM code. */
2461 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2462 			    &area, &domain, &topo, &sw_cap);
2463 		}
2464 	}
2465 
2466 	if (rval)
2467 		ql_dbg(ql_dbg_init, vha, 0x007a,
2468 		    "**** Load RISC code ****.\n");
2469 
2470 	return (rval);
2471 }
2472 
2473 /**
2474  * qla2x00_reset_chip() - Reset ISP chip.
2475  * @vha: HA context
2476  *
2477  * Returns 0 on success.
2478  */
2479 int
2480 qla2x00_reset_chip(scsi_qla_host_t *vha)
2481 {
2482 	unsigned long   flags = 0;
2483 	struct qla_hw_data *ha = vha->hw;
2484 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2485 	uint32_t	cnt;
2486 	uint16_t	cmd;
2487 	int rval = QLA_FUNCTION_FAILED;
2488 
2489 	if (unlikely(pci_channel_offline(ha->pdev)))
2490 		return rval;
2491 
2492 	ha->isp_ops->disable_intrs(ha);
2493 
2494 	spin_lock_irqsave(&ha->hardware_lock, flags);
2495 
2496 	/* Turn off master enable */
2497 	cmd = 0;
2498 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
2499 	cmd &= ~PCI_COMMAND_MASTER;
2500 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2501 
2502 	if (!IS_QLA2100(ha)) {
2503 		/* Pause RISC. */
2504 		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
2505 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
2506 			for (cnt = 0; cnt < 30000; cnt++) {
2507 				if ((RD_REG_WORD(&reg->hccr) &
2508 				    HCCR_RISC_PAUSE) != 0)
2509 					break;
2510 				udelay(100);
2511 			}
2512 		} else {
2513 			RD_REG_WORD(&reg->hccr);	/* PCI Posting. */
2514 			udelay(10);
2515 		}
2516 
2517 		/* Select FPM registers. */
2518 		WRT_REG_WORD(&reg->ctrl_status, 0x20);
2519 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
2520 
2521 		/* FPM Soft Reset. */
2522 		WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
2523 		RD_REG_WORD(&reg->fpm_diag_config);	/* PCI Posting. */
2524 
2525 		/* Toggle Fpm Reset. */
2526 		if (!IS_QLA2200(ha)) {
2527 			WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
2528 			RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
2529 		}
2530 
2531 		/* Select frame buffer registers. */
2532 		WRT_REG_WORD(&reg->ctrl_status, 0x10);
2533 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
2534 
2535 		/* Reset frame buffer FIFOs. */
2536 		if (IS_QLA2200(ha)) {
2537 			WRT_FB_CMD_REG(ha, reg, 0xa000);
2538 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
2539 		} else {
2540 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
2541 
2542 			/* Read back fb_cmd until zero or 3 seconds max */
2543 			for (cnt = 0; cnt < 3000; cnt++) {
2544 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
2545 					break;
2546 				udelay(100);
2547 			}
2548 		}
2549 
2550 		/* Select RISC module registers. */
2551 		WRT_REG_WORD(&reg->ctrl_status, 0);
2552 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
2553 
2554 		/* Reset RISC processor. */
2555 		WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2556 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
2557 
2558 		/* Release RISC processor. */
2559 		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2560 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
2561 	}
2562 
2563 	WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
2564 	WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
2565 
2566 	/* Reset ISP chip. */
2567 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2568 
2569 	/* Wait for RISC to recover from reset. */
2570 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2571 		/*
2572 		 * It is necessary to for a delay here since the card doesn't
2573 		 * respond to PCI reads during a reset. On some architectures
2574 		 * this will result in an MCA.
2575 		 */
2576 		udelay(20);
2577 		for (cnt = 30000; cnt; cnt--) {
2578 			if ((RD_REG_WORD(&reg->ctrl_status) &
2579 			    CSR_ISP_SOFT_RESET) == 0)
2580 				break;
2581 			udelay(100);
2582 		}
2583 	} else
2584 		udelay(10);
2585 
2586 	/* Reset RISC processor. */
2587 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2588 
2589 	WRT_REG_WORD(&reg->semaphore, 0);
2590 
2591 	/* Release RISC processor. */
2592 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2593 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
2594 
2595 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2596 		for (cnt = 0; cnt < 30000; cnt++) {
2597 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
2598 				break;
2599 
2600 			udelay(100);
2601 		}
2602 	} else
2603 		udelay(100);
2604 
2605 	/* Turn on master enable */
2606 	cmd |= PCI_COMMAND_MASTER;
2607 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2608 
2609 	/* Disable RISC pause on FPM parity error. */
2610 	if (!IS_QLA2100(ha)) {
2611 		WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
2612 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
2613 	}
2614 
2615 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2616 
2617 	return QLA_SUCCESS;
2618 }
2619 
2620 /**
2621  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
2622  * @vha: HA context
2623  *
2624  * Returns 0 on success.
2625  */
2626 static int
2627 qla81xx_reset_mpi(scsi_qla_host_t *vha)
2628 {
2629 	uint16_t mb[4] = {0x1010, 0, 1, 0};
2630 
2631 	if (!IS_QLA81XX(vha->hw))
2632 		return QLA_SUCCESS;
2633 
2634 	return qla81xx_write_mpi_register(vha, mb);
2635 }
2636 
2637 /**
2638  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
2639  * @vha: HA context
2640  *
2641  * Returns 0 on success.
2642  */
2643 static inline int
2644 qla24xx_reset_risc(scsi_qla_host_t *vha)
2645 {
2646 	unsigned long flags = 0;
2647 	struct qla_hw_data *ha = vha->hw;
2648 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2649 	uint32_t cnt;
2650 	uint16_t wd;
2651 	static int abts_cnt; /* ISP abort retry counts */
2652 	int rval = QLA_SUCCESS;
2653 
2654 	spin_lock_irqsave(&ha->hardware_lock, flags);
2655 
2656 	/* Reset RISC. */
2657 	WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2658 	for (cnt = 0; cnt < 30000; cnt++) {
2659 		if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
2660 			break;
2661 
2662 		udelay(10);
2663 	}
2664 
2665 	if (!(RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE))
2666 		set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
2667 
2668 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
2669 	    "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
2670 	    RD_REG_DWORD(&reg->hccr),
2671 	    RD_REG_DWORD(&reg->ctrl_status),
2672 	    (RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE));
2673 
2674 	WRT_REG_DWORD(&reg->ctrl_status,
2675 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2676 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
2677 
2678 	udelay(100);
2679 
2680 	/* Wait for firmware to complete NVRAM accesses. */
2681 	RD_REG_WORD(&reg->mailbox0);
2682 	for (cnt = 10000; RD_REG_WORD(&reg->mailbox0) != 0 &&
2683 	    rval == QLA_SUCCESS; cnt--) {
2684 		barrier();
2685 		if (cnt)
2686 			udelay(5);
2687 		else
2688 			rval = QLA_FUNCTION_TIMEOUT;
2689 	}
2690 
2691 	if (rval == QLA_SUCCESS)
2692 		set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
2693 
2694 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
2695 	    "HCCR: 0x%x, MailBox0 Status 0x%x\n",
2696 	    RD_REG_DWORD(&reg->hccr),
2697 	    RD_REG_DWORD(&reg->mailbox0));
2698 
2699 	/* Wait for soft-reset to complete. */
2700 	RD_REG_DWORD(&reg->ctrl_status);
2701 	for (cnt = 0; cnt < 60; cnt++) {
2702 		barrier();
2703 		if ((RD_REG_DWORD(&reg->ctrl_status) &
2704 		    CSRX_ISP_SOFT_RESET) == 0)
2705 			break;
2706 
2707 		udelay(5);
2708 	}
2709 	if (!(RD_REG_DWORD(&reg->ctrl_status) & CSRX_ISP_SOFT_RESET))
2710 		set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
2711 
2712 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
2713 	    "HCCR: 0x%x, Soft Reset status: 0x%x\n",
2714 	    RD_REG_DWORD(&reg->hccr),
2715 	    RD_REG_DWORD(&reg->ctrl_status));
2716 
2717 	/* If required, do an MPI FW reset now */
2718 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
2719 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
2720 			if (++abts_cnt < 5) {
2721 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2722 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
2723 			} else {
2724 				/*
2725 				 * We exhausted the ISP abort retries. We have to
2726 				 * set the board offline.
2727 				 */
2728 				abts_cnt = 0;
2729 				vha->flags.online = 0;
2730 			}
2731 		}
2732 	}
2733 
2734 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
2735 	RD_REG_DWORD(&reg->hccr);
2736 
2737 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
2738 	RD_REG_DWORD(&reg->hccr);
2739 
2740 	WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
2741 	RD_REG_DWORD(&reg->hccr);
2742 
2743 	RD_REG_WORD(&reg->mailbox0);
2744 	for (cnt = 60; RD_REG_WORD(&reg->mailbox0) != 0 &&
2745 	    rval == QLA_SUCCESS; cnt--) {
2746 		barrier();
2747 		if (cnt)
2748 			udelay(5);
2749 		else
2750 			rval = QLA_FUNCTION_TIMEOUT;
2751 	}
2752 	if (rval == QLA_SUCCESS)
2753 		set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
2754 
2755 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
2756 	    "Host Risc 0x%x, mailbox0 0x%x\n",
2757 	    RD_REG_DWORD(&reg->hccr),
2758 	     RD_REG_WORD(&reg->mailbox0));
2759 
2760 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2761 
2762 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
2763 	    "Driver in %s mode\n",
2764 	    IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
2765 
2766 	if (IS_NOPOLLING_TYPE(ha))
2767 		ha->isp_ops->enable_intrs(ha);
2768 
2769 	return rval;
2770 }
2771 
2772 static void
2773 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
2774 {
2775 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2776 
2777 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2778 	*data = RD_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET);
2779 
2780 }
2781 
2782 static void
2783 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
2784 {
2785 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2786 
2787 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2788 	WRT_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET, data);
2789 }
2790 
2791 static void
2792 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
2793 {
2794 	uint32_t wd32 = 0;
2795 	uint delta_msec = 100;
2796 	uint elapsed_msec = 0;
2797 	uint timeout_msec;
2798 	ulong n;
2799 
2800 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
2801 	    vha->hw->pdev->subsystem_device != 0x0240)
2802 		return;
2803 
2804 	WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
2805 	udelay(100);
2806 
2807 attempt:
2808 	timeout_msec = TIMEOUT_SEMAPHORE;
2809 	n = timeout_msec / delta_msec;
2810 	while (n--) {
2811 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
2812 		qla25xx_read_risc_sema_reg(vha, &wd32);
2813 		if (wd32 & RISC_SEMAPHORE)
2814 			break;
2815 		msleep(delta_msec);
2816 		elapsed_msec += delta_msec;
2817 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2818 			goto force;
2819 	}
2820 
2821 	if (!(wd32 & RISC_SEMAPHORE))
2822 		goto force;
2823 
2824 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
2825 		goto acquired;
2826 
2827 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
2828 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
2829 	n = timeout_msec / delta_msec;
2830 	while (n--) {
2831 		qla25xx_read_risc_sema_reg(vha, &wd32);
2832 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
2833 			break;
2834 		msleep(delta_msec);
2835 		elapsed_msec += delta_msec;
2836 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2837 			goto force;
2838 	}
2839 
2840 	if (wd32 & RISC_SEMAPHORE_FORCE)
2841 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
2842 
2843 	goto attempt;
2844 
2845 force:
2846 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
2847 
2848 acquired:
2849 	return;
2850 }
2851 
2852 /**
2853  * qla24xx_reset_chip() - Reset ISP24xx chip.
2854  * @vha: HA context
2855  *
2856  * Returns 0 on success.
2857  */
2858 int
2859 qla24xx_reset_chip(scsi_qla_host_t *vha)
2860 {
2861 	struct qla_hw_data *ha = vha->hw;
2862 	int rval = QLA_FUNCTION_FAILED;
2863 
2864 	if (pci_channel_offline(ha->pdev) &&
2865 	    ha->flags.pci_channel_io_perm_failure) {
2866 		return rval;
2867 	}
2868 
2869 	ha->isp_ops->disable_intrs(ha);
2870 
2871 	qla25xx_manipulate_risc_semaphore(vha);
2872 
2873 	/* Perform RISC reset. */
2874 	rval = qla24xx_reset_risc(vha);
2875 
2876 	return rval;
2877 }
2878 
2879 /**
2880  * qla2x00_chip_diag() - Test chip for proper operation.
2881  * @vha: HA context
2882  *
2883  * Returns 0 on success.
2884  */
2885 int
2886 qla2x00_chip_diag(scsi_qla_host_t *vha)
2887 {
2888 	int		rval;
2889 	struct qla_hw_data *ha = vha->hw;
2890 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2891 	unsigned long	flags = 0;
2892 	uint16_t	data;
2893 	uint32_t	cnt;
2894 	uint16_t	mb[5];
2895 	struct req_que *req = ha->req_q_map[0];
2896 
2897 	/* Assume a failed state */
2898 	rval = QLA_FUNCTION_FAILED;
2899 
2900 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
2901 	       &reg->flash_address);
2902 
2903 	spin_lock_irqsave(&ha->hardware_lock, flags);
2904 
2905 	/* Reset ISP chip. */
2906 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2907 
2908 	/*
2909 	 * We need to have a delay here since the card will not respond while
2910 	 * in reset causing an MCA on some architectures.
2911 	 */
2912 	udelay(20);
2913 	data = qla2x00_debounce_register(&reg->ctrl_status);
2914 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
2915 		udelay(5);
2916 		data = RD_REG_WORD(&reg->ctrl_status);
2917 		barrier();
2918 	}
2919 
2920 	if (!cnt)
2921 		goto chip_diag_failed;
2922 
2923 	ql_dbg(ql_dbg_init, vha, 0x007c,
2924 	    "Reset register cleared by chip reset.\n");
2925 
2926 	/* Reset RISC processor. */
2927 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2928 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2929 
2930 	/* Workaround for QLA2312 PCI parity error */
2931 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2932 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
2933 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
2934 			udelay(5);
2935 			data = RD_MAILBOX_REG(ha, reg, 0);
2936 			barrier();
2937 		}
2938 	} else
2939 		udelay(10);
2940 
2941 	if (!cnt)
2942 		goto chip_diag_failed;
2943 
2944 	/* Check product ID of chip */
2945 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
2946 
2947 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
2948 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
2949 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
2950 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
2951 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
2952 	    mb[3] != PROD_ID_3) {
2953 		ql_log(ql_log_warn, vha, 0x0062,
2954 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
2955 		    mb[1], mb[2], mb[3]);
2956 
2957 		goto chip_diag_failed;
2958 	}
2959 	ha->product_id[0] = mb[1];
2960 	ha->product_id[1] = mb[2];
2961 	ha->product_id[2] = mb[3];
2962 	ha->product_id[3] = mb[4];
2963 
2964 	/* Adjust fw RISC transfer size */
2965 	if (req->length > 1024)
2966 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
2967 	else
2968 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
2969 		    req->length;
2970 
2971 	if (IS_QLA2200(ha) &&
2972 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
2973 		/* Limit firmware transfer size with a 2200A */
2974 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
2975 
2976 		ha->device_type |= DT_ISP2200A;
2977 		ha->fw_transfer_size = 128;
2978 	}
2979 
2980 	/* Wrap Incoming Mailboxes Test. */
2981 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2982 
2983 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
2984 	rval = qla2x00_mbx_reg_test(vha);
2985 	if (rval)
2986 		ql_log(ql_log_warn, vha, 0x0080,
2987 		    "Failed mailbox send register test.\n");
2988 	else
2989 		/* Flag a successful rval */
2990 		rval = QLA_SUCCESS;
2991 	spin_lock_irqsave(&ha->hardware_lock, flags);
2992 
2993 chip_diag_failed:
2994 	if (rval)
2995 		ql_log(ql_log_info, vha, 0x0081,
2996 		    "Chip diagnostics **** FAILED ****.\n");
2997 
2998 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2999 
3000 	return (rval);
3001 }
3002 
3003 /**
3004  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
3005  * @vha: HA context
3006  *
3007  * Returns 0 on success.
3008  */
3009 int
3010 qla24xx_chip_diag(scsi_qla_host_t *vha)
3011 {
3012 	int rval;
3013 	struct qla_hw_data *ha = vha->hw;
3014 	struct req_que *req = ha->req_q_map[0];
3015 
3016 	if (IS_P3P_TYPE(ha))
3017 		return QLA_SUCCESS;
3018 
3019 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
3020 
3021 	rval = qla2x00_mbx_reg_test(vha);
3022 	if (rval) {
3023 		ql_log(ql_log_warn, vha, 0x0082,
3024 		    "Failed mailbox send register test.\n");
3025 	} else {
3026 		/* Flag a successful rval */
3027 		rval = QLA_SUCCESS;
3028 	}
3029 
3030 	return rval;
3031 }
3032 
3033 static void
3034 qla2x00_init_fce_trace(scsi_qla_host_t *vha)
3035 {
3036 	int rval;
3037 	dma_addr_t tc_dma;
3038 	void *tc;
3039 	struct qla_hw_data *ha = vha->hw;
3040 
3041 	if (!IS_FWI2_CAPABLE(ha))
3042 		return;
3043 
3044 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3045 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3046 		return;
3047 
3048 	if (ha->fce) {
3049 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3050 		       "%s: FCE Mem is already allocated.\n",
3051 		       __func__);
3052 		return;
3053 	}
3054 
3055 	/* Allocate memory for Fibre Channel Event Buffer. */
3056 	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
3057 				GFP_KERNEL);
3058 	if (!tc) {
3059 		ql_log(ql_log_warn, vha, 0x00be,
3060 		       "Unable to allocate (%d KB) for FCE.\n",
3061 		       FCE_SIZE / 1024);
3062 		return;
3063 	}
3064 
3065 	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
3066 					ha->fce_mb, &ha->fce_bufs);
3067 	if (rval) {
3068 		ql_log(ql_log_warn, vha, 0x00bf,
3069 		       "Unable to initialize FCE (%d).\n", rval);
3070 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
3071 		return;
3072 	}
3073 
3074 	ql_dbg(ql_dbg_init, vha, 0x00c0,
3075 	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
3076 
3077 	ha->flags.fce_enabled = 1;
3078 	ha->fce_dma = tc_dma;
3079 	ha->fce = tc;
3080 }
3081 
3082 static void
3083 qla2x00_init_eft_trace(scsi_qla_host_t *vha)
3084 {
3085 	int rval;
3086 	dma_addr_t tc_dma;
3087 	void *tc;
3088 	struct qla_hw_data *ha = vha->hw;
3089 
3090 	if (!IS_FWI2_CAPABLE(ha))
3091 		return;
3092 
3093 	if (ha->eft) {
3094 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3095 		    "%s: EFT Mem is already allocated.\n",
3096 		    __func__);
3097 		return;
3098 	}
3099 
3100 	/* Allocate memory for Extended Trace Buffer. */
3101 	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
3102 				GFP_KERNEL);
3103 	if (!tc) {
3104 		ql_log(ql_log_warn, vha, 0x00c1,
3105 		       "Unable to allocate (%d KB) for EFT.\n",
3106 		       EFT_SIZE / 1024);
3107 		return;
3108 	}
3109 
3110 	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
3111 	if (rval) {
3112 		ql_log(ql_log_warn, vha, 0x00c2,
3113 		       "Unable to initialize EFT (%d).\n", rval);
3114 		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
3115 		return;
3116 	}
3117 
3118 	ql_dbg(ql_dbg_init, vha, 0x00c3,
3119 	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
3120 
3121 	ha->eft_dma = tc_dma;
3122 	ha->eft = tc;
3123 }
3124 
3125 static void
3126 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
3127 {
3128 	qla2x00_init_fce_trace(vha);
3129 	qla2x00_init_eft_trace(vha);
3130 }
3131 
3132 void
3133 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
3134 {
3135 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
3136 	    eft_size, fce_size, mq_size;
3137 	struct qla_hw_data *ha = vha->hw;
3138 	struct req_que *req = ha->req_q_map[0];
3139 	struct rsp_que *rsp = ha->rsp_q_map[0];
3140 	struct qla2xxx_fw_dump *fw_dump;
3141 
3142 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
3143 	req_q_size = rsp_q_size = 0;
3144 
3145 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3146 		fixed_size = sizeof(struct qla2100_fw_dump);
3147 	} else if (IS_QLA23XX(ha)) {
3148 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
3149 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
3150 		    sizeof(uint16_t);
3151 	} else if (IS_FWI2_CAPABLE(ha)) {
3152 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3153 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
3154 		else if (IS_QLA81XX(ha))
3155 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
3156 		else if (IS_QLA25XX(ha))
3157 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
3158 		else
3159 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
3160 
3161 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
3162 		    sizeof(uint32_t);
3163 		if (ha->mqenable) {
3164 			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) &&
3165 			    !IS_QLA28XX(ha))
3166 				mq_size = sizeof(struct qla2xxx_mq_chain);
3167 			/*
3168 			 * Allocate maximum buffer size for all queues - Q0.
3169 			 * Resizing must be done at end-of-dump processing.
3170 			 */
3171 			mq_size += (ha->max_req_queues - 1) *
3172 			    (req->length * sizeof(request_t));
3173 			mq_size += (ha->max_rsp_queues - 1) *
3174 			    (rsp->length * sizeof(response_t));
3175 		}
3176 		if (ha->tgt.atio_ring)
3177 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
3178 
3179 		qla2x00_init_fce_trace(vha);
3180 		if (ha->fce)
3181 			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
3182 		qla2x00_init_eft_trace(vha);
3183 		if (ha->eft)
3184 			eft_size = EFT_SIZE;
3185 	}
3186 
3187 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3188 		struct fwdt *fwdt = ha->fwdt;
3189 		uint j;
3190 
3191 		for (j = 0; j < 2; j++, fwdt++) {
3192 			if (!fwdt->template) {
3193 				ql_log(ql_log_warn, vha, 0x00ba,
3194 				    "-> fwdt%u no template\n", j);
3195 				continue;
3196 			}
3197 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3198 			    "-> fwdt%u calculating fwdump size...\n", j);
3199 			fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
3200 			    vha, fwdt->template);
3201 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3202 			    "-> fwdt%u calculated fwdump size = %#lx bytes\n",
3203 			    j, fwdt->dump_size);
3204 			dump_size += fwdt->dump_size;
3205 		}
3206 	} else {
3207 		req_q_size = req->length * sizeof(request_t);
3208 		rsp_q_size = rsp->length * sizeof(response_t);
3209 		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3210 		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
3211 			+ eft_size;
3212 		ha->chain_offset = dump_size;
3213 		dump_size += mq_size + fce_size;
3214 		if (ha->exchoffld_buf)
3215 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3216 				ha->exchoffld_size;
3217 		if (ha->exlogin_buf)
3218 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3219 				ha->exlogin_size;
3220 	}
3221 
3222 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
3223 
3224 		ql_dbg(ql_dbg_init, vha, 0x00c5,
3225 		    "%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
3226 		    __func__, dump_size, ha->fw_dump_len,
3227 		    ha->fw_dump_alloc_len);
3228 
3229 		fw_dump = vmalloc(dump_size);
3230 		if (!fw_dump) {
3231 			ql_log(ql_log_warn, vha, 0x00c4,
3232 			    "Unable to allocate (%d KB) for firmware dump.\n",
3233 			    dump_size / 1024);
3234 		} else {
3235 			mutex_lock(&ha->optrom_mutex);
3236 			if (ha->fw_dumped) {
3237 				memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
3238 				vfree(ha->fw_dump);
3239 				ha->fw_dump = fw_dump;
3240 				ha->fw_dump_alloc_len =  dump_size;
3241 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3242 				    "Re-Allocated (%d KB) and save firmware dump.\n",
3243 				    dump_size / 1024);
3244 			} else {
3245 				if (ha->fw_dump)
3246 					vfree(ha->fw_dump);
3247 				ha->fw_dump = fw_dump;
3248 
3249 				ha->fw_dump_len = ha->fw_dump_alloc_len =
3250 				    dump_size;
3251 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3252 				    "Allocated (%d KB) for firmware dump.\n",
3253 				    dump_size / 1024);
3254 
3255 				if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3256 					mutex_unlock(&ha->optrom_mutex);
3257 					return;
3258 				}
3259 
3260 				ha->fw_dump->signature[0] = 'Q';
3261 				ha->fw_dump->signature[1] = 'L';
3262 				ha->fw_dump->signature[2] = 'G';
3263 				ha->fw_dump->signature[3] = 'C';
3264 				ha->fw_dump->version = htonl(1);
3265 
3266 				ha->fw_dump->fixed_size = htonl(fixed_size);
3267 				ha->fw_dump->mem_size = htonl(mem_size);
3268 				ha->fw_dump->req_q_size = htonl(req_q_size);
3269 				ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3270 
3271 				ha->fw_dump->eft_size = htonl(eft_size);
3272 				ha->fw_dump->eft_addr_l =
3273 				    htonl(LSD(ha->eft_dma));
3274 				ha->fw_dump->eft_addr_h =
3275 				    htonl(MSD(ha->eft_dma));
3276 
3277 				ha->fw_dump->header_size =
3278 					htonl(offsetof
3279 					    (struct qla2xxx_fw_dump, isp));
3280 			}
3281 			mutex_unlock(&ha->optrom_mutex);
3282 		}
3283 	}
3284 }
3285 
3286 static int
3287 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3288 {
3289 #define MPS_MASK	0xe0
3290 	int rval;
3291 	uint16_t dc;
3292 	uint32_t dw;
3293 
3294 	if (!IS_QLA81XX(vha->hw))
3295 		return QLA_SUCCESS;
3296 
3297 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3298 	if (rval != QLA_SUCCESS) {
3299 		ql_log(ql_log_warn, vha, 0x0105,
3300 		    "Unable to acquire semaphore.\n");
3301 		goto done;
3302 	}
3303 
3304 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3305 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3306 	if (rval != QLA_SUCCESS) {
3307 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3308 		goto done_release;
3309 	}
3310 
3311 	dc &= MPS_MASK;
3312 	if (dc == (dw & MPS_MASK))
3313 		goto done_release;
3314 
3315 	dw &= ~MPS_MASK;
3316 	dw |= dc;
3317 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3318 	if (rval != QLA_SUCCESS) {
3319 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3320 	}
3321 
3322 done_release:
3323 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3324 	if (rval != QLA_SUCCESS) {
3325 		ql_log(ql_log_warn, vha, 0x006d,
3326 		    "Unable to release semaphore.\n");
3327 	}
3328 
3329 done:
3330 	return rval;
3331 }
3332 
3333 int
3334 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3335 {
3336 	/* Don't try to reallocate the array */
3337 	if (req->outstanding_cmds)
3338 		return QLA_SUCCESS;
3339 
3340 	if (!IS_FWI2_CAPABLE(ha))
3341 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3342 	else {
3343 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3344 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3345 		else
3346 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3347 	}
3348 
3349 	req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3350 					sizeof(srb_t *),
3351 					GFP_KERNEL);
3352 
3353 	if (!req->outstanding_cmds) {
3354 		/*
3355 		 * Try to allocate a minimal size just so we can get through
3356 		 * initialization.
3357 		 */
3358 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3359 		req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3360 						sizeof(srb_t *),
3361 						GFP_KERNEL);
3362 
3363 		if (!req->outstanding_cmds) {
3364 			ql_log(ql_log_fatal, NULL, 0x0126,
3365 			    "Failed to allocate memory for "
3366 			    "outstanding_cmds for req_que %p.\n", req);
3367 			req->num_outstanding_cmds = 0;
3368 			return QLA_FUNCTION_FAILED;
3369 		}
3370 	}
3371 
3372 	return QLA_SUCCESS;
3373 }
3374 
3375 #define PRINT_FIELD(_field, _flag, _str) {		\
3376 	if (a0->_field & _flag) {\
3377 		if (p) {\
3378 			strcat(ptr, "|");\
3379 			ptr++;\
3380 			leftover--;\
3381 		} \
3382 		len = snprintf(ptr, leftover, "%s", _str);	\
3383 		p = 1;\
3384 		leftover -= len;\
3385 		ptr += len; \
3386 	} \
3387 }
3388 
3389 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3390 {
3391 #define STR_LEN 64
3392 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3393 	u8 str[STR_LEN], *ptr, p;
3394 	int leftover, len;
3395 
3396 	memset(str, 0, STR_LEN);
3397 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3398 	ql_dbg(ql_dbg_init, vha, 0x015a,
3399 	    "SFP MFG Name: %s\n", str);
3400 
3401 	memset(str, 0, STR_LEN);
3402 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3403 	ql_dbg(ql_dbg_init, vha, 0x015c,
3404 	    "SFP Part Name: %s\n", str);
3405 
3406 	/* media */
3407 	memset(str, 0, STR_LEN);
3408 	ptr = str;
3409 	leftover = STR_LEN;
3410 	p = len = 0;
3411 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3412 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3413 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3414 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3415 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3416 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3417 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3418 	ql_dbg(ql_dbg_init, vha, 0x0160,
3419 	    "SFP Media: %s\n", str);
3420 
3421 	/* link length */
3422 	memset(str, 0, STR_LEN);
3423 	ptr = str;
3424 	leftover = STR_LEN;
3425 	p = len = 0;
3426 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3427 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3428 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3429 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3430 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3431 	ql_dbg(ql_dbg_init, vha, 0x0196,
3432 	    "SFP Link Length: %s\n", str);
3433 
3434 	memset(str, 0, STR_LEN);
3435 	ptr = str;
3436 	leftover = STR_LEN;
3437 	p = len = 0;
3438 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3439 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3440 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3441 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3442 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3443 	ql_dbg(ql_dbg_init, vha, 0x016e,
3444 	    "SFP FC Link Tech: %s\n", str);
3445 
3446 	if (a0->length_km)
3447 		ql_dbg(ql_dbg_init, vha, 0x016f,
3448 		    "SFP Distant: %d km\n", a0->length_km);
3449 	if (a0->length_100m)
3450 		ql_dbg(ql_dbg_init, vha, 0x0170,
3451 		    "SFP Distant: %d m\n", a0->length_100m*100);
3452 	if (a0->length_50um_10m)
3453 		ql_dbg(ql_dbg_init, vha, 0x0189,
3454 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3455 	if (a0->length_62um_10m)
3456 		ql_dbg(ql_dbg_init, vha, 0x018a,
3457 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3458 	if (a0->length_om4_10m)
3459 		ql_dbg(ql_dbg_init, vha, 0x0194,
3460 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3461 	if (a0->length_om3_10m)
3462 		ql_dbg(ql_dbg_init, vha, 0x0195,
3463 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3464 }
3465 
3466 
3467 /*
3468  * Return Code:
3469  *   QLA_SUCCESS: no action
3470  *   QLA_INTERFACE_ERROR: SFP is not there.
3471  *   QLA_FUNCTION_FAILED: detected New SFP
3472  */
3473 int
3474 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3475 {
3476 	int rc = QLA_SUCCESS;
3477 	struct sff_8247_a0 *a;
3478 	struct qla_hw_data *ha = vha->hw;
3479 
3480 	if (!AUTO_DETECT_SFP_SUPPORT(vha))
3481 		goto out;
3482 
3483 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3484 	if (rc)
3485 		goto out;
3486 
3487 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3488 	qla2xxx_print_sfp_info(vha);
3489 
3490 	if (a->fc_ll_cc7 & FC_LL_VL || a->fc_ll_cc7 & FC_LL_L) {
3491 		/* long range */
3492 		ha->flags.detected_lr_sfp = 1;
3493 
3494 		if (a->length_km > 5 || a->length_100m > 50)
3495 			ha->long_range_distance = LR_DISTANCE_10K;
3496 		else
3497 			ha->long_range_distance = LR_DISTANCE_5K;
3498 
3499 		if (ha->flags.detected_lr_sfp != ha->flags.using_lr_setting)
3500 			ql_dbg(ql_dbg_async, vha, 0x507b,
3501 			    "Detected Long Range SFP.\n");
3502 	} else {
3503 		/* short range */
3504 		ha->flags.detected_lr_sfp = 0;
3505 		if (ha->flags.using_lr_setting)
3506 			ql_dbg(ql_dbg_async, vha, 0x5084,
3507 			    "Detected Short Range SFP.\n");
3508 	}
3509 
3510 	if (!vha->flags.init_done)
3511 		rc = QLA_SUCCESS;
3512 out:
3513 	return rc;
3514 }
3515 
3516 /**
3517  * qla2x00_setup_chip() - Load and start RISC firmware.
3518  * @vha: HA context
3519  *
3520  * Returns 0 on success.
3521  */
3522 static int
3523 qla2x00_setup_chip(scsi_qla_host_t *vha)
3524 {
3525 	int rval;
3526 	uint32_t srisc_address = 0;
3527 	struct qla_hw_data *ha = vha->hw;
3528 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3529 	unsigned long flags;
3530 	uint16_t fw_major_version;
3531 
3532 	if (IS_P3P_TYPE(ha)) {
3533 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3534 		if (rval == QLA_SUCCESS) {
3535 			qla2x00_stop_firmware(vha);
3536 			goto enable_82xx_npiv;
3537 		} else
3538 			goto failed;
3539 	}
3540 
3541 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3542 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3543 		spin_lock_irqsave(&ha->hardware_lock, flags);
3544 		WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
3545 		RD_REG_WORD(&reg->hccr);
3546 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3547 	}
3548 
3549 	qla81xx_mpi_sync(vha);
3550 
3551 	/* Load firmware sequences */
3552 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
3553 	if (rval == QLA_SUCCESS) {
3554 		ql_dbg(ql_dbg_init, vha, 0x00c9,
3555 		    "Verifying Checksum of loaded RISC code.\n");
3556 
3557 		rval = qla2x00_verify_checksum(vha, srisc_address);
3558 		if (rval == QLA_SUCCESS) {
3559 			/* Start firmware execution. */
3560 			ql_dbg(ql_dbg_init, vha, 0x00ca,
3561 			    "Starting firmware.\n");
3562 
3563 			if (ql2xexlogins)
3564 				ha->flags.exlogins_enabled = 1;
3565 
3566 			if (qla_is_exch_offld_enabled(vha))
3567 				ha->flags.exchoffld_enabled = 1;
3568 
3569 			rval = qla2x00_execute_fw(vha, srisc_address);
3570 			/* Retrieve firmware information. */
3571 			if (rval == QLA_SUCCESS) {
3572 				qla24xx_detect_sfp(vha);
3573 
3574 				if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3575 				    IS_QLA28XX(ha)) &&
3576 				    (ha->zio_mode == QLA_ZIO_MODE_6))
3577 					qla27xx_set_zio_threshold(vha,
3578 					    ha->last_zio_threshold);
3579 
3580 				rval = qla2x00_set_exlogins_buffer(vha);
3581 				if (rval != QLA_SUCCESS)
3582 					goto failed;
3583 
3584 				rval = qla2x00_set_exchoffld_buffer(vha);
3585 				if (rval != QLA_SUCCESS)
3586 					goto failed;
3587 
3588 enable_82xx_npiv:
3589 				fw_major_version = ha->fw_major_version;
3590 				if (IS_P3P_TYPE(ha))
3591 					qla82xx_check_md_needed(vha);
3592 				else
3593 					rval = qla2x00_get_fw_version(vha);
3594 				if (rval != QLA_SUCCESS)
3595 					goto failed;
3596 				ha->flags.npiv_supported = 0;
3597 				if (IS_QLA2XXX_MIDTYPE(ha) &&
3598 					 (ha->fw_attributes & BIT_2)) {
3599 					ha->flags.npiv_supported = 1;
3600 					if ((!ha->max_npiv_vports) ||
3601 					    ((ha->max_npiv_vports + 1) %
3602 					    MIN_MULTI_ID_FABRIC))
3603 						ha->max_npiv_vports =
3604 						    MIN_MULTI_ID_FABRIC - 1;
3605 				}
3606 				qla2x00_get_resource_cnts(vha);
3607 
3608 				/*
3609 				 * Allocate the array of outstanding commands
3610 				 * now that we know the firmware resources.
3611 				 */
3612 				rval = qla2x00_alloc_outstanding_cmds(ha,
3613 				    vha->req);
3614 				if (rval != QLA_SUCCESS)
3615 					goto failed;
3616 
3617 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
3618 					qla2x00_alloc_offload_mem(vha);
3619 
3620 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
3621 					qla2x00_alloc_fw_dump(vha);
3622 
3623 			} else {
3624 				goto failed;
3625 			}
3626 		} else {
3627 			ql_log(ql_log_fatal, vha, 0x00cd,
3628 			    "ISP Firmware failed checksum.\n");
3629 			goto failed;
3630 		}
3631 	} else
3632 		goto failed;
3633 
3634 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3635 		/* Enable proper parity. */
3636 		spin_lock_irqsave(&ha->hardware_lock, flags);
3637 		if (IS_QLA2300(ha))
3638 			/* SRAM parity */
3639 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
3640 		else
3641 			/* SRAM, Instruction RAM and GP RAM parity */
3642 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
3643 		RD_REG_WORD(&reg->hccr);
3644 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3645 	}
3646 
3647 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
3648 		ha->flags.fac_supported = 1;
3649 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
3650 		uint32_t size;
3651 
3652 		rval = qla81xx_fac_get_sector_size(vha, &size);
3653 		if (rval == QLA_SUCCESS) {
3654 			ha->flags.fac_supported = 1;
3655 			ha->fdt_block_size = size << 2;
3656 		} else {
3657 			ql_log(ql_log_warn, vha, 0x00ce,
3658 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
3659 			    ha->fw_major_version, ha->fw_minor_version,
3660 			    ha->fw_subminor_version);
3661 
3662 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3663 			    IS_QLA28XX(ha)) {
3664 				ha->flags.fac_supported = 0;
3665 				rval = QLA_SUCCESS;
3666 			}
3667 		}
3668 	}
3669 failed:
3670 	if (rval) {
3671 		ql_log(ql_log_fatal, vha, 0x00cf,
3672 		    "Setup chip ****FAILED****.\n");
3673 	}
3674 
3675 	return (rval);
3676 }
3677 
3678 /**
3679  * qla2x00_init_response_q_entries() - Initializes response queue entries.
3680  * @rsp: response queue
3681  *
3682  * Beginning of request ring has initialization control block already built
3683  * by nvram config routine.
3684  *
3685  * Returns 0 on success.
3686  */
3687 void
3688 qla2x00_init_response_q_entries(struct rsp_que *rsp)
3689 {
3690 	uint16_t cnt;
3691 	response_t *pkt;
3692 
3693 	rsp->ring_ptr = rsp->ring;
3694 	rsp->ring_index    = 0;
3695 	rsp->status_srb = NULL;
3696 	pkt = rsp->ring_ptr;
3697 	for (cnt = 0; cnt < rsp->length; cnt++) {
3698 		pkt->signature = RESPONSE_PROCESSED;
3699 		pkt++;
3700 	}
3701 }
3702 
3703 /**
3704  * qla2x00_update_fw_options() - Read and process firmware options.
3705  * @vha: HA context
3706  *
3707  * Returns 0 on success.
3708  */
3709 void
3710 qla2x00_update_fw_options(scsi_qla_host_t *vha)
3711 {
3712 	uint16_t swing, emphasis, tx_sens, rx_sens;
3713 	struct qla_hw_data *ha = vha->hw;
3714 
3715 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
3716 	qla2x00_get_fw_options(vha, ha->fw_options);
3717 
3718 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
3719 		return;
3720 
3721 	/* Serial Link options. */
3722 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
3723 	    "Serial link options.\n");
3724 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
3725 	    ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
3726 
3727 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
3728 	if (ha->fw_seriallink_options[3] & BIT_2) {
3729 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
3730 
3731 		/*  1G settings */
3732 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
3733 		emphasis = (ha->fw_seriallink_options[2] &
3734 		    (BIT_4 | BIT_3)) >> 3;
3735 		tx_sens = ha->fw_seriallink_options[0] &
3736 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3737 		rx_sens = (ha->fw_seriallink_options[0] &
3738 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3739 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
3740 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3741 			if (rx_sens == 0x0)
3742 				rx_sens = 0x3;
3743 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
3744 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3745 			ha->fw_options[10] |= BIT_5 |
3746 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3747 			    (tx_sens & (BIT_1 | BIT_0));
3748 
3749 		/*  2G settings */
3750 		swing = (ha->fw_seriallink_options[2] &
3751 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
3752 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
3753 		tx_sens = ha->fw_seriallink_options[1] &
3754 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3755 		rx_sens = (ha->fw_seriallink_options[1] &
3756 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3757 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
3758 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3759 			if (rx_sens == 0x0)
3760 				rx_sens = 0x3;
3761 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
3762 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3763 			ha->fw_options[11] |= BIT_5 |
3764 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3765 			    (tx_sens & (BIT_1 | BIT_0));
3766 	}
3767 
3768 	/* FCP2 options. */
3769 	/*  Return command IOCBs without waiting for an ABTS to complete. */
3770 	ha->fw_options[3] |= BIT_13;
3771 
3772 	/* LED scheme. */
3773 	if (ha->flags.enable_led_scheme)
3774 		ha->fw_options[2] |= BIT_12;
3775 
3776 	/* Detect ISP6312. */
3777 	if (IS_QLA6312(ha))
3778 		ha->fw_options[2] |= BIT_13;
3779 
3780 	/* Set Retry FLOGI in case of P2P connection */
3781 	if (ha->operating_mode == P2P) {
3782 		ha->fw_options[2] |= BIT_3;
3783 		ql_dbg(ql_dbg_disc, vha, 0x2100,
3784 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3785 			__func__, ha->fw_options[2]);
3786 	}
3787 
3788 	/* Update firmware options. */
3789 	qla2x00_set_fw_options(vha, ha->fw_options);
3790 }
3791 
3792 void
3793 qla24xx_update_fw_options(scsi_qla_host_t *vha)
3794 {
3795 	int rval;
3796 	struct qla_hw_data *ha = vha->hw;
3797 
3798 	if (IS_P3P_TYPE(ha))
3799 		return;
3800 
3801 	/*  Hold status IOCBs until ABTS response received. */
3802 	if (ql2xfwholdabts)
3803 		ha->fw_options[3] |= BIT_12;
3804 
3805 	/* Set Retry FLOGI in case of P2P connection */
3806 	if (ha->operating_mode == P2P) {
3807 		ha->fw_options[2] |= BIT_3;
3808 		ql_dbg(ql_dbg_disc, vha, 0x2101,
3809 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3810 			__func__, ha->fw_options[2]);
3811 	}
3812 
3813 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
3814 	if (ql2xmvasynctoatio &&
3815 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
3816 		if (qla_tgt_mode_enabled(vha) ||
3817 		    qla_dual_mode_enabled(vha))
3818 			ha->fw_options[2] |= BIT_11;
3819 		else
3820 			ha->fw_options[2] &= ~BIT_11;
3821 	}
3822 
3823 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3824 	    IS_QLA28XX(ha)) {
3825 		/*
3826 		 * Tell FW to track each exchange to prevent
3827 		 * driver from using stale exchange.
3828 		 */
3829 		if (qla_tgt_mode_enabled(vha) ||
3830 		    qla_dual_mode_enabled(vha))
3831 			ha->fw_options[2] |= BIT_4;
3832 		else
3833 			ha->fw_options[2] &= ~BIT_4;
3834 
3835 		/* Reserve 1/2 of emergency exchanges for ELS.*/
3836 		if (qla2xuseresexchforels)
3837 			ha->fw_options[2] |= BIT_8;
3838 		else
3839 			ha->fw_options[2] &= ~BIT_8;
3840 	}
3841 
3842 	ql_dbg(ql_dbg_init, vha, 0x00e8,
3843 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
3844 	    __func__, ha->fw_options[1], ha->fw_options[2],
3845 	    ha->fw_options[3], vha->host->active_mode);
3846 
3847 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
3848 		qla2x00_set_fw_options(vha, ha->fw_options);
3849 
3850 	/* Update Serial Link options. */
3851 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
3852 		return;
3853 
3854 	rval = qla2x00_set_serdes_params(vha,
3855 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
3856 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
3857 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
3858 	if (rval != QLA_SUCCESS) {
3859 		ql_log(ql_log_warn, vha, 0x0104,
3860 		    "Unable to update Serial Link options (%x).\n", rval);
3861 	}
3862 }
3863 
3864 void
3865 qla2x00_config_rings(struct scsi_qla_host *vha)
3866 {
3867 	struct qla_hw_data *ha = vha->hw;
3868 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3869 	struct req_que *req = ha->req_q_map[0];
3870 	struct rsp_que *rsp = ha->rsp_q_map[0];
3871 
3872 	/* Setup ring parameters in initialization control block. */
3873 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
3874 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
3875 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
3876 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
3877 	put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
3878 	put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
3879 
3880 	WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
3881 	WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
3882 	WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
3883 	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
3884 	RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
3885 }
3886 
3887 void
3888 qla24xx_config_rings(struct scsi_qla_host *vha)
3889 {
3890 	struct qla_hw_data *ha = vha->hw;
3891 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
3892 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
3893 	struct qla_msix_entry *msix;
3894 	struct init_cb_24xx *icb;
3895 	uint16_t rid = 0;
3896 	struct req_que *req = ha->req_q_map[0];
3897 	struct rsp_que *rsp = ha->rsp_q_map[0];
3898 
3899 	/* Setup ring parameters in initialization control block. */
3900 	icb = (struct init_cb_24xx *)ha->init_cb;
3901 	icb->request_q_outpointer = cpu_to_le16(0);
3902 	icb->response_q_inpointer = cpu_to_le16(0);
3903 	icb->request_q_length = cpu_to_le16(req->length);
3904 	icb->response_q_length = cpu_to_le16(rsp->length);
3905 	put_unaligned_le64(req->dma, &icb->request_q_address);
3906 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
3907 
3908 	/* Setup ATIO queue dma pointers for target mode */
3909 	icb->atio_q_inpointer = cpu_to_le16(0);
3910 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
3911 	put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
3912 
3913 	if (IS_SHADOW_REG_CAPABLE(ha))
3914 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
3915 
3916 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3917 	    IS_QLA28XX(ha)) {
3918 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
3919 		icb->rid = cpu_to_le16(rid);
3920 		if (ha->flags.msix_enabled) {
3921 			msix = &ha->msix_entries[1];
3922 			ql_dbg(ql_dbg_init, vha, 0x0019,
3923 			    "Registering vector 0x%x for base que.\n",
3924 			    msix->entry);
3925 			icb->msix = cpu_to_le16(msix->entry);
3926 		}
3927 		/* Use alternate PCI bus number */
3928 		if (MSB(rid))
3929 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
3930 		/* Use alternate PCI devfn */
3931 		if (LSB(rid))
3932 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
3933 
3934 		/* Use Disable MSIX Handshake mode for capable adapters */
3935 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
3936 		    (ha->flags.msix_enabled)) {
3937 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
3938 			ha->flags.disable_msix_handshake = 1;
3939 			ql_dbg(ql_dbg_init, vha, 0x00fe,
3940 			    "MSIX Handshake Disable Mode turned on.\n");
3941 		} else {
3942 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
3943 		}
3944 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
3945 
3946 		WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
3947 		WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
3948 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
3949 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
3950 	} else {
3951 		WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
3952 		WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
3953 		WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
3954 		WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
3955 	}
3956 
3957 	qlt_24xx_config_rings(vha);
3958 
3959 	/* If the user has configured the speed, set it here */
3960 	if (ha->set_data_rate) {
3961 		ql_dbg(ql_dbg_init, vha, 0x00fd,
3962 		    "Speed set by user : %s Gbps \n",
3963 		    qla2x00_get_link_speed_str(ha, ha->set_data_rate));
3964 		icb->firmware_options_3 = (ha->set_data_rate << 13);
3965 	}
3966 
3967 	/* PCI posting */
3968 	RD_REG_DWORD(&ioreg->hccr);
3969 }
3970 
3971 /**
3972  * qla2x00_init_rings() - Initializes firmware.
3973  * @vha: HA context
3974  *
3975  * Beginning of request ring has initialization control block already built
3976  * by nvram config routine.
3977  *
3978  * Returns 0 on success.
3979  */
3980 int
3981 qla2x00_init_rings(scsi_qla_host_t *vha)
3982 {
3983 	int	rval;
3984 	unsigned long flags = 0;
3985 	int cnt, que;
3986 	struct qla_hw_data *ha = vha->hw;
3987 	struct req_que *req;
3988 	struct rsp_que *rsp;
3989 	struct mid_init_cb_24xx *mid_init_cb =
3990 	    (struct mid_init_cb_24xx *) ha->init_cb;
3991 
3992 	spin_lock_irqsave(&ha->hardware_lock, flags);
3993 
3994 	/* Clear outstanding commands array. */
3995 	for (que = 0; que < ha->max_req_queues; que++) {
3996 		req = ha->req_q_map[que];
3997 		if (!req || !test_bit(que, ha->req_qid_map))
3998 			continue;
3999 		req->out_ptr = (void *)(req->ring + req->length);
4000 		*req->out_ptr = 0;
4001 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
4002 			req->outstanding_cmds[cnt] = NULL;
4003 
4004 		req->current_outstanding_cmd = 1;
4005 
4006 		/* Initialize firmware. */
4007 		req->ring_ptr  = req->ring;
4008 		req->ring_index    = 0;
4009 		req->cnt      = req->length;
4010 	}
4011 
4012 	for (que = 0; que < ha->max_rsp_queues; que++) {
4013 		rsp = ha->rsp_q_map[que];
4014 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
4015 			continue;
4016 		rsp->in_ptr = (void *)(rsp->ring + rsp->length);
4017 		*rsp->in_ptr = 0;
4018 		/* Initialize response queue entries */
4019 		if (IS_QLAFX00(ha))
4020 			qlafx00_init_response_q_entries(rsp);
4021 		else
4022 			qla2x00_init_response_q_entries(rsp);
4023 	}
4024 
4025 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
4026 	ha->tgt.atio_ring_index = 0;
4027 	/* Initialize ATIO queue entries */
4028 	qlt_init_atio_q_entries(vha);
4029 
4030 	ha->isp_ops->config_rings(vha);
4031 
4032 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4033 
4034 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
4035 
4036 	if (IS_QLAFX00(ha)) {
4037 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
4038 		goto next_check;
4039 	}
4040 
4041 	/* Update any ISP specific firmware options before initialization. */
4042 	ha->isp_ops->update_fw_options(vha);
4043 
4044 	if (ha->flags.npiv_supported) {
4045 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
4046 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
4047 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
4048 	}
4049 
4050 	if (IS_FWI2_CAPABLE(ha)) {
4051 		mid_init_cb->options = cpu_to_le16(BIT_1);
4052 		mid_init_cb->init_cb.execution_throttle =
4053 		    cpu_to_le16(ha->cur_fw_xcb_count);
4054 		ha->flags.dport_enabled =
4055 		    (mid_init_cb->init_cb.firmware_options_1 & BIT_7) != 0;
4056 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
4057 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
4058 		/* FA-WWPN Status */
4059 		ha->flags.fawwpn_enabled =
4060 		    (mid_init_cb->init_cb.firmware_options_1 & BIT_6) != 0;
4061 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
4062 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
4063 	}
4064 
4065 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
4066 next_check:
4067 	if (rval) {
4068 		ql_log(ql_log_fatal, vha, 0x00d2,
4069 		    "Init Firmware **** FAILED ****.\n");
4070 	} else {
4071 		ql_dbg(ql_dbg_init, vha, 0x00d3,
4072 		    "Init Firmware -- success.\n");
4073 		QLA_FW_STARTED(ha);
4074 		vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
4075 	}
4076 
4077 	return (rval);
4078 }
4079 
4080 /**
4081  * qla2x00_fw_ready() - Waits for firmware ready.
4082  * @vha: HA context
4083  *
4084  * Returns 0 on success.
4085  */
4086 static int
4087 qla2x00_fw_ready(scsi_qla_host_t *vha)
4088 {
4089 	int		rval;
4090 	unsigned long	wtime, mtime, cs84xx_time;
4091 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
4092 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
4093 	uint16_t	state[6];
4094 	struct qla_hw_data *ha = vha->hw;
4095 
4096 	if (IS_QLAFX00(vha->hw))
4097 		return qlafx00_fw_ready(vha);
4098 
4099 	rval = QLA_SUCCESS;
4100 
4101 	/* Time to wait for loop down */
4102 	if (IS_P3P_TYPE(ha))
4103 		min_wait = 30;
4104 	else
4105 		min_wait = 20;
4106 
4107 	/*
4108 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
4109 	 * our own processing.
4110 	 */
4111 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
4112 		wait_time = min_wait;
4113 	}
4114 
4115 	/* Min wait time if loop down */
4116 	mtime = jiffies + (min_wait * HZ);
4117 
4118 	/* wait time before firmware ready */
4119 	wtime = jiffies + (wait_time * HZ);
4120 
4121 	/* Wait for ISP to finish LIP */
4122 	if (!vha->flags.init_done)
4123 		ql_log(ql_log_info, vha, 0x801e,
4124 		    "Waiting for LIP to complete.\n");
4125 
4126 	do {
4127 		memset(state, -1, sizeof(state));
4128 		rval = qla2x00_get_firmware_state(vha, state);
4129 		if (rval == QLA_SUCCESS) {
4130 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
4131 				vha->device_flags &= ~DFLG_NO_CABLE;
4132 			}
4133 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
4134 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
4135 				    "fw_state=%x 84xx=%x.\n", state[0],
4136 				    state[2]);
4137 				if ((state[2] & FSTATE_LOGGED_IN) &&
4138 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
4139 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
4140 					    "Sending verify iocb.\n");
4141 
4142 					cs84xx_time = jiffies;
4143 					rval = qla84xx_init_chip(vha);
4144 					if (rval != QLA_SUCCESS) {
4145 						ql_log(ql_log_warn,
4146 						    vha, 0x8007,
4147 						    "Init chip failed.\n");
4148 						break;
4149 					}
4150 
4151 					/* Add time taken to initialize. */
4152 					cs84xx_time = jiffies - cs84xx_time;
4153 					wtime += cs84xx_time;
4154 					mtime += cs84xx_time;
4155 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
4156 					    "Increasing wait time by %ld. "
4157 					    "New time %ld.\n", cs84xx_time,
4158 					    wtime);
4159 				}
4160 			} else if (state[0] == FSTATE_READY) {
4161 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
4162 				    "F/W Ready - OK.\n");
4163 
4164 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
4165 				    &ha->login_timeout, &ha->r_a_tov);
4166 
4167 				rval = QLA_SUCCESS;
4168 				break;
4169 			}
4170 
4171 			rval = QLA_FUNCTION_FAILED;
4172 
4173 			if (atomic_read(&vha->loop_down_timer) &&
4174 			    state[0] != FSTATE_READY) {
4175 				/* Loop down. Timeout on min_wait for states
4176 				 * other than Wait for Login.
4177 				 */
4178 				if (time_after_eq(jiffies, mtime)) {
4179 					ql_log(ql_log_info, vha, 0x8038,
4180 					    "Cable is unplugged...\n");
4181 
4182 					vha->device_flags |= DFLG_NO_CABLE;
4183 					break;
4184 				}
4185 			}
4186 		} else {
4187 			/* Mailbox cmd failed. Timeout on min_wait. */
4188 			if (time_after_eq(jiffies, mtime) ||
4189 				ha->flags.isp82xx_fw_hung)
4190 				break;
4191 		}
4192 
4193 		if (time_after_eq(jiffies, wtime))
4194 			break;
4195 
4196 		/* Delay for a while */
4197 		msleep(500);
4198 	} while (1);
4199 
4200 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
4201 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
4202 	    state[1], state[2], state[3], state[4], state[5], jiffies);
4203 
4204 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
4205 		ql_log(ql_log_warn, vha, 0x803b,
4206 		    "Firmware ready **** FAILED ****.\n");
4207 	}
4208 
4209 	return (rval);
4210 }
4211 
4212 /*
4213 *  qla2x00_configure_hba
4214 *      Setup adapter context.
4215 *
4216 * Input:
4217 *      ha = adapter state pointer.
4218 *
4219 * Returns:
4220 *      0 = success
4221 *
4222 * Context:
4223 *      Kernel context.
4224 */
4225 static int
4226 qla2x00_configure_hba(scsi_qla_host_t *vha)
4227 {
4228 	int       rval;
4229 	uint16_t      loop_id;
4230 	uint16_t      topo;
4231 	uint16_t      sw_cap;
4232 	uint8_t       al_pa;
4233 	uint8_t       area;
4234 	uint8_t       domain;
4235 	char		connect_type[22];
4236 	struct qla_hw_data *ha = vha->hw;
4237 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4238 	port_id_t id;
4239 	unsigned long flags;
4240 
4241 	/* Get host addresses. */
4242 	rval = qla2x00_get_adapter_id(vha,
4243 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4244 	if (rval != QLA_SUCCESS) {
4245 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4246 		    IS_CNA_CAPABLE(ha) ||
4247 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4248 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4249 			    "Loop is in a transition state.\n");
4250 		} else {
4251 			ql_log(ql_log_warn, vha, 0x2009,
4252 			    "Unable to get host loop ID.\n");
4253 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4254 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4255 				ql_log(ql_log_warn, vha, 0x1151,
4256 				    "Doing link init.\n");
4257 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4258 					return rval;
4259 			}
4260 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4261 		}
4262 		return (rval);
4263 	}
4264 
4265 	if (topo == 4) {
4266 		ql_log(ql_log_info, vha, 0x200a,
4267 		    "Cannot get topology - retrying.\n");
4268 		return (QLA_FUNCTION_FAILED);
4269 	}
4270 
4271 	vha->loop_id = loop_id;
4272 
4273 	/* initialize */
4274 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4275 	ha->operating_mode = LOOP;
4276 	ha->switch_cap = 0;
4277 
4278 	switch (topo) {
4279 	case 0:
4280 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4281 		ha->current_topology = ISP_CFG_NL;
4282 		strcpy(connect_type, "(Loop)");
4283 		break;
4284 
4285 	case 1:
4286 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4287 		ha->switch_cap = sw_cap;
4288 		ha->current_topology = ISP_CFG_FL;
4289 		strcpy(connect_type, "(FL_Port)");
4290 		break;
4291 
4292 	case 2:
4293 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4294 		ha->operating_mode = P2P;
4295 		ha->current_topology = ISP_CFG_N;
4296 		strcpy(connect_type, "(N_Port-to-N_Port)");
4297 		break;
4298 
4299 	case 3:
4300 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4301 		ha->switch_cap = sw_cap;
4302 		ha->operating_mode = P2P;
4303 		ha->current_topology = ISP_CFG_F;
4304 		strcpy(connect_type, "(F_Port)");
4305 		break;
4306 
4307 	default:
4308 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4309 		    "HBA in unknown topology %x, using NL.\n", topo);
4310 		ha->current_topology = ISP_CFG_NL;
4311 		strcpy(connect_type, "(Loop)");
4312 		break;
4313 	}
4314 
4315 	/* Save Host port and loop ID. */
4316 	/* byte order - Big Endian */
4317 	id.b.domain = domain;
4318 	id.b.area = area;
4319 	id.b.al_pa = al_pa;
4320 	id.b.rsvd_1 = 0;
4321 	spin_lock_irqsave(&ha->hardware_lock, flags);
4322 	if (!(topo == 2 && ha->flags.n2n_bigger))
4323 		qlt_update_host_map(vha, id);
4324 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4325 
4326 	if (!vha->flags.init_done)
4327 		ql_log(ql_log_info, vha, 0x2010,
4328 		    "Topology - %s, Host Loop address 0x%x.\n",
4329 		    connect_type, vha->loop_id);
4330 
4331 	return(rval);
4332 }
4333 
4334 inline void
4335 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4336 		       const char *def)
4337 {
4338 	char *st, *en;
4339 	uint16_t index;
4340 	uint64_t zero[2] = { 0 };
4341 	struct qla_hw_data *ha = vha->hw;
4342 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4343 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4344 
4345 	if (len > sizeof(zero))
4346 		len = sizeof(zero);
4347 	if (memcmp(model, &zero, len) != 0) {
4348 		memcpy(ha->model_number, model, len);
4349 		st = en = ha->model_number;
4350 		en += len - 1;
4351 		while (en > st) {
4352 			if (*en != 0x20 && *en != 0x00)
4353 				break;
4354 			*en-- = '\0';
4355 		}
4356 
4357 		index = (ha->pdev->subsystem_device & 0xff);
4358 		if (use_tbl &&
4359 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4360 		    index < QLA_MODEL_NAMES)
4361 			strlcpy(ha->model_desc,
4362 			    qla2x00_model_name[index * 2 + 1],
4363 			    sizeof(ha->model_desc));
4364 	} else {
4365 		index = (ha->pdev->subsystem_device & 0xff);
4366 		if (use_tbl &&
4367 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4368 		    index < QLA_MODEL_NAMES) {
4369 			strlcpy(ha->model_number,
4370 				qla2x00_model_name[index * 2],
4371 				sizeof(ha->model_number));
4372 			strlcpy(ha->model_desc,
4373 			    qla2x00_model_name[index * 2 + 1],
4374 			    sizeof(ha->model_desc));
4375 		} else {
4376 			strlcpy(ha->model_number, def,
4377 				sizeof(ha->model_number));
4378 		}
4379 	}
4380 	if (IS_FWI2_CAPABLE(ha))
4381 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4382 		    sizeof(ha->model_desc));
4383 }
4384 
4385 /* On sparc systems, obtain port and node WWN from firmware
4386  * properties.
4387  */
4388 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4389 {
4390 #ifdef CONFIG_SPARC
4391 	struct qla_hw_data *ha = vha->hw;
4392 	struct pci_dev *pdev = ha->pdev;
4393 	struct device_node *dp = pci_device_to_OF_node(pdev);
4394 	const u8 *val;
4395 	int len;
4396 
4397 	val = of_get_property(dp, "port-wwn", &len);
4398 	if (val && len >= WWN_SIZE)
4399 		memcpy(nv->port_name, val, WWN_SIZE);
4400 
4401 	val = of_get_property(dp, "node-wwn", &len);
4402 	if (val && len >= WWN_SIZE)
4403 		memcpy(nv->node_name, val, WWN_SIZE);
4404 #endif
4405 }
4406 
4407 /*
4408 * NVRAM configuration for ISP 2xxx
4409 *
4410 * Input:
4411 *      ha                = adapter block pointer.
4412 *
4413 * Output:
4414 *      initialization control block in response_ring
4415 *      host adapters parameters in host adapter block
4416 *
4417 * Returns:
4418 *      0 = success.
4419 */
4420 int
4421 qla2x00_nvram_config(scsi_qla_host_t *vha)
4422 {
4423 	int             rval;
4424 	uint8_t         chksum = 0;
4425 	uint16_t        cnt;
4426 	uint8_t         *dptr1, *dptr2;
4427 	struct qla_hw_data *ha = vha->hw;
4428 	init_cb_t       *icb = ha->init_cb;
4429 	nvram_t         *nv = ha->nvram;
4430 	uint8_t         *ptr = ha->nvram;
4431 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4432 
4433 	rval = QLA_SUCCESS;
4434 
4435 	/* Determine NVRAM starting address. */
4436 	ha->nvram_size = sizeof(*nv);
4437 	ha->nvram_base = 0;
4438 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4439 		if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
4440 			ha->nvram_base = 0x80;
4441 
4442 	/* Get NVRAM data and calculate checksum. */
4443 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4444 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4445 		chksum += *ptr++;
4446 
4447 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4448 	    "Contents of NVRAM.\n");
4449 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4450 	    nv, ha->nvram_size);
4451 
4452 	/* Bad NVRAM data, set defaults parameters. */
4453 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
4454 	    nv->nvram_version < 1) {
4455 		/* Reset NVRAM data. */
4456 		ql_log(ql_log_warn, vha, 0x0064,
4457 		    "Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
4458 		    chksum, nv->id, nv->nvram_version);
4459 		ql_log(ql_log_warn, vha, 0x0065,
4460 		    "Falling back to "
4461 		    "functioning (yet invalid -- WWPN) defaults.\n");
4462 
4463 		/*
4464 		 * Set default initialization control block.
4465 		 */
4466 		memset(nv, 0, ha->nvram_size);
4467 		nv->parameter_block_version = ICB_VERSION;
4468 
4469 		if (IS_QLA23XX(ha)) {
4470 			nv->firmware_options[0] = BIT_2 | BIT_1;
4471 			nv->firmware_options[1] = BIT_7 | BIT_5;
4472 			nv->add_firmware_options[0] = BIT_5;
4473 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4474 			nv->frame_payload_size = 2048;
4475 			nv->special_options[1] = BIT_7;
4476 		} else if (IS_QLA2200(ha)) {
4477 			nv->firmware_options[0] = BIT_2 | BIT_1;
4478 			nv->firmware_options[1] = BIT_7 | BIT_5;
4479 			nv->add_firmware_options[0] = BIT_5;
4480 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4481 			nv->frame_payload_size = 1024;
4482 		} else if (IS_QLA2100(ha)) {
4483 			nv->firmware_options[0] = BIT_3 | BIT_1;
4484 			nv->firmware_options[1] = BIT_5;
4485 			nv->frame_payload_size = 1024;
4486 		}
4487 
4488 		nv->max_iocb_allocation = cpu_to_le16(256);
4489 		nv->execution_throttle = cpu_to_le16(16);
4490 		nv->retry_count = 8;
4491 		nv->retry_delay = 1;
4492 
4493 		nv->port_name[0] = 33;
4494 		nv->port_name[3] = 224;
4495 		nv->port_name[4] = 139;
4496 
4497 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
4498 
4499 		nv->login_timeout = 4;
4500 
4501 		/*
4502 		 * Set default host adapter parameters
4503 		 */
4504 		nv->host_p[1] = BIT_2;
4505 		nv->reset_delay = 5;
4506 		nv->port_down_retry_count = 8;
4507 		nv->max_luns_per_target = cpu_to_le16(8);
4508 		nv->link_down_timeout = 60;
4509 
4510 		rval = 1;
4511 	}
4512 
4513 	/* Reset Initialization control block */
4514 	memset(icb, 0, ha->init_cb_size);
4515 
4516 	/*
4517 	 * Setup driver NVRAM options.
4518 	 */
4519 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
4520 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
4521 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
4522 	nv->firmware_options[1] &= ~BIT_4;
4523 
4524 	if (IS_QLA23XX(ha)) {
4525 		nv->firmware_options[0] |= BIT_2;
4526 		nv->firmware_options[0] &= ~BIT_3;
4527 		nv->special_options[0] &= ~BIT_6;
4528 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
4529 
4530 		if (IS_QLA2300(ha)) {
4531 			if (ha->fb_rev == FPM_2310) {
4532 				strcpy(ha->model_number, "QLA2310");
4533 			} else {
4534 				strcpy(ha->model_number, "QLA2300");
4535 			}
4536 		} else {
4537 			qla2x00_set_model_info(vha, nv->model_number,
4538 			    sizeof(nv->model_number), "QLA23xx");
4539 		}
4540 	} else if (IS_QLA2200(ha)) {
4541 		nv->firmware_options[0] |= BIT_2;
4542 		/*
4543 		 * 'Point-to-point preferred, else loop' is not a safe
4544 		 * connection mode setting.
4545 		 */
4546 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
4547 		    (BIT_5 | BIT_4)) {
4548 			/* Force 'loop preferred, else point-to-point'. */
4549 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
4550 			nv->add_firmware_options[0] |= BIT_5;
4551 		}
4552 		strcpy(ha->model_number, "QLA22xx");
4553 	} else /*if (IS_QLA2100(ha))*/ {
4554 		strcpy(ha->model_number, "QLA2100");
4555 	}
4556 
4557 	/*
4558 	 * Copy over NVRAM RISC parameter block to initialization control block.
4559 	 */
4560 	dptr1 = (uint8_t *)icb;
4561 	dptr2 = (uint8_t *)&nv->parameter_block_version;
4562 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
4563 	while (cnt--)
4564 		*dptr1++ = *dptr2++;
4565 
4566 	/* Copy 2nd half. */
4567 	dptr1 = (uint8_t *)icb->add_firmware_options;
4568 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
4569 	while (cnt--)
4570 		*dptr1++ = *dptr2++;
4571 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
4572 	/* Use alternate WWN? */
4573 	if (nv->host_p[1] & BIT_7) {
4574 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4575 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4576 	}
4577 
4578 	/* Prepare nodename */
4579 	if ((icb->firmware_options[1] & BIT_6) == 0) {
4580 		/*
4581 		 * Firmware will apply the following mask if the nodename was
4582 		 * not provided.
4583 		 */
4584 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4585 		icb->node_name[0] &= 0xF0;
4586 	}
4587 
4588 	/*
4589 	 * Set host adapter parameters.
4590 	 */
4591 
4592 	/*
4593 	 * BIT_7 in the host-parameters section allows for modification to
4594 	 * internal driver logging.
4595 	 */
4596 	if (nv->host_p[0] & BIT_7)
4597 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
4598 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
4599 	/* Always load RISC code on non ISP2[12]00 chips. */
4600 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
4601 		ha->flags.disable_risc_code_load = 0;
4602 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
4603 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
4604 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
4605 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
4606 	ha->flags.disable_serdes = 0;
4607 
4608 	ha->operating_mode =
4609 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
4610 
4611 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
4612 	    sizeof(ha->fw_seriallink_options));
4613 
4614 	/* save HBA serial number */
4615 	ha->serial0 = icb->port_name[5];
4616 	ha->serial1 = icb->port_name[6];
4617 	ha->serial2 = icb->port_name[7];
4618 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4619 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4620 
4621 	icb->execution_throttle = cpu_to_le16(0xFFFF);
4622 
4623 	ha->retry_count = nv->retry_count;
4624 
4625 	/* Set minimum login_timeout to 4 seconds. */
4626 	if (nv->login_timeout != ql2xlogintimeout)
4627 		nv->login_timeout = ql2xlogintimeout;
4628 	if (nv->login_timeout < 4)
4629 		nv->login_timeout = 4;
4630 	ha->login_timeout = nv->login_timeout;
4631 
4632 	/* Set minimum RATOV to 100 tenths of a second. */
4633 	ha->r_a_tov = 100;
4634 
4635 	ha->loop_reset_delay = nv->reset_delay;
4636 
4637 	/* Link Down Timeout = 0:
4638 	 *
4639 	 * 	When Port Down timer expires we will start returning
4640 	 *	I/O's to OS with "DID_NO_CONNECT".
4641 	 *
4642 	 * Link Down Timeout != 0:
4643 	 *
4644 	 *	 The driver waits for the link to come up after link down
4645 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
4646 	 */
4647 	if (nv->link_down_timeout == 0) {
4648 		ha->loop_down_abort_time =
4649 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4650 	} else {
4651 		ha->link_down_timeout =	 nv->link_down_timeout;
4652 		ha->loop_down_abort_time =
4653 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
4654 	}
4655 
4656 	/*
4657 	 * Need enough time to try and get the port back.
4658 	 */
4659 	ha->port_down_retry_count = nv->port_down_retry_count;
4660 	if (qlport_down_retry)
4661 		ha->port_down_retry_count = qlport_down_retry;
4662 	/* Set login_retry_count */
4663 	ha->login_retry_count  = nv->retry_count;
4664 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
4665 	    ha->port_down_retry_count > 3)
4666 		ha->login_retry_count = ha->port_down_retry_count;
4667 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4668 		ha->login_retry_count = ha->port_down_retry_count;
4669 	if (ql2xloginretrycount)
4670 		ha->login_retry_count = ql2xloginretrycount;
4671 
4672 	icb->lun_enables = cpu_to_le16(0);
4673 	icb->command_resource_count = 0;
4674 	icb->immediate_notify_resource_count = 0;
4675 	icb->timeout = cpu_to_le16(0);
4676 
4677 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4678 		/* Enable RIO */
4679 		icb->firmware_options[0] &= ~BIT_3;
4680 		icb->add_firmware_options[0] &=
4681 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4682 		icb->add_firmware_options[0] |= BIT_2;
4683 		icb->response_accumulation_timer = 3;
4684 		icb->interrupt_delay_timer = 5;
4685 
4686 		vha->flags.process_response_queue = 1;
4687 	} else {
4688 		/* Enable ZIO. */
4689 		if (!vha->flags.init_done) {
4690 			ha->zio_mode = icb->add_firmware_options[0] &
4691 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4692 			ha->zio_timer = icb->interrupt_delay_timer ?
4693 			    icb->interrupt_delay_timer : 2;
4694 		}
4695 		icb->add_firmware_options[0] &=
4696 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4697 		vha->flags.process_response_queue = 0;
4698 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
4699 			ha->zio_mode = QLA_ZIO_MODE_6;
4700 
4701 			ql_log(ql_log_info, vha, 0x0068,
4702 			    "ZIO mode %d enabled; timer delay (%d us).\n",
4703 			    ha->zio_mode, ha->zio_timer * 100);
4704 
4705 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
4706 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
4707 			vha->flags.process_response_queue = 1;
4708 		}
4709 	}
4710 
4711 	if (rval) {
4712 		ql_log(ql_log_warn, vha, 0x0069,
4713 		    "NVRAM configuration failed.\n");
4714 	}
4715 	return (rval);
4716 }
4717 
4718 static void
4719 qla2x00_rport_del(void *data)
4720 {
4721 	fc_port_t *fcport = data;
4722 	struct fc_rport *rport;
4723 	unsigned long flags;
4724 
4725 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
4726 	rport = fcport->drport ? fcport->drport : fcport->rport;
4727 	fcport->drport = NULL;
4728 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
4729 	if (rport) {
4730 		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
4731 		    "%s %8phN. rport %p roles %x\n",
4732 		    __func__, fcport->port_name, rport,
4733 		    rport->roles);
4734 
4735 		fc_remote_port_delete(rport);
4736 	}
4737 }
4738 
4739 void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
4740 {
4741 	int old_state;
4742 
4743 	old_state = atomic_read(&fcport->state);
4744 	atomic_set(&fcport->state, state);
4745 
4746 	/* Don't print state transitions during initial allocation of fcport */
4747 	if (old_state && old_state != state) {
4748 		ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
4749 		       "FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
4750 		       fcport->port_name, port_state_str[old_state],
4751 		       port_state_str[state], fcport->d_id.b.domain,
4752 		       fcport->d_id.b.area, fcport->d_id.b.al_pa);
4753 	}
4754 }
4755 
4756 /**
4757  * qla2x00_alloc_fcport() - Allocate a generic fcport.
4758  * @vha: HA context
4759  * @flags: allocation flags
4760  *
4761  * Returns a pointer to the allocated fcport, or NULL, if none available.
4762  */
4763 fc_port_t *
4764 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
4765 {
4766 	fc_port_t *fcport;
4767 
4768 	fcport = kzalloc(sizeof(fc_port_t), flags);
4769 	if (!fcport)
4770 		return NULL;
4771 
4772 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
4773 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
4774 		flags);
4775 	if (!fcport->ct_desc.ct_sns) {
4776 		ql_log(ql_log_warn, vha, 0xd049,
4777 		    "Failed to allocate ct_sns request.\n");
4778 		kfree(fcport);
4779 		return NULL;
4780 	}
4781 
4782 	/* Setup fcport template structure. */
4783 	fcport->vha = vha;
4784 	fcport->port_type = FCT_UNKNOWN;
4785 	fcport->loop_id = FC_NO_LOOP_ID;
4786 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
4787 	fcport->supported_classes = FC_COS_UNSPECIFIED;
4788 	fcport->fp_speed = PORT_SPEED_UNKNOWN;
4789 
4790 	fcport->disc_state = DSC_DELETED;
4791 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
4792 	fcport->deleted = QLA_SESS_DELETED;
4793 	fcport->login_retry = vha->hw->login_retry_count;
4794 	fcport->chip_reset = vha->hw->base_qpair->chip_reset;
4795 	fcport->logout_on_delete = 1;
4796 
4797 	if (!fcport->ct_desc.ct_sns) {
4798 		ql_log(ql_log_warn, vha, 0xd049,
4799 		    "Failed to allocate ct_sns request.\n");
4800 		kfree(fcport);
4801 		return NULL;
4802 	}
4803 
4804 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
4805 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
4806 	INIT_LIST_HEAD(&fcport->gnl_entry);
4807 	INIT_LIST_HEAD(&fcport->list);
4808 
4809 	return fcport;
4810 }
4811 
4812 void
4813 qla2x00_free_fcport(fc_port_t *fcport)
4814 {
4815 	if (fcport->ct_desc.ct_sns) {
4816 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
4817 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
4818 			fcport->ct_desc.ct_sns_dma);
4819 
4820 		fcport->ct_desc.ct_sns = NULL;
4821 	}
4822 	list_del(&fcport->list);
4823 	qla2x00_clear_loop_id(fcport);
4824 	kfree(fcport);
4825 }
4826 
4827 /*
4828  * qla2x00_configure_loop
4829  *      Updates Fibre Channel Device Database with what is actually on loop.
4830  *
4831  * Input:
4832  *      ha                = adapter block pointer.
4833  *
4834  * Returns:
4835  *      0 = success.
4836  *      1 = error.
4837  *      2 = database was full and device was not configured.
4838  */
4839 static int
4840 qla2x00_configure_loop(scsi_qla_host_t *vha)
4841 {
4842 	int  rval;
4843 	unsigned long flags, save_flags;
4844 	struct qla_hw_data *ha = vha->hw;
4845 
4846 	rval = QLA_SUCCESS;
4847 
4848 	/* Get Initiator ID */
4849 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
4850 		rval = qla2x00_configure_hba(vha);
4851 		if (rval != QLA_SUCCESS) {
4852 			ql_dbg(ql_dbg_disc, vha, 0x2013,
4853 			    "Unable to configure HBA.\n");
4854 			return (rval);
4855 		}
4856 	}
4857 
4858 	save_flags = flags = vha->dpc_flags;
4859 	ql_dbg(ql_dbg_disc, vha, 0x2014,
4860 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
4861 
4862 	/*
4863 	 * If we have both an RSCN and PORT UPDATE pending then handle them
4864 	 * both at the same time.
4865 	 */
4866 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4867 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
4868 
4869 	qla2x00_get_data_rate(vha);
4870 
4871 	/* Determine what we need to do */
4872 	if (ha->current_topology == ISP_CFG_FL &&
4873 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
4874 
4875 		set_bit(RSCN_UPDATE, &flags);
4876 
4877 	} else if (ha->current_topology == ISP_CFG_F &&
4878 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
4879 
4880 		set_bit(RSCN_UPDATE, &flags);
4881 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
4882 
4883 	} else if (ha->current_topology == ISP_CFG_N) {
4884 		clear_bit(RSCN_UPDATE, &flags);
4885 		if (qla_tgt_mode_enabled(vha)) {
4886 			/* allow the other side to start the login */
4887 			clear_bit(LOCAL_LOOP_UPDATE, &flags);
4888 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4889 		}
4890 	} else if (ha->current_topology == ISP_CFG_NL) {
4891 		clear_bit(RSCN_UPDATE, &flags);
4892 		set_bit(LOCAL_LOOP_UPDATE, &flags);
4893 	} else if (!vha->flags.online ||
4894 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
4895 		set_bit(RSCN_UPDATE, &flags);
4896 		set_bit(LOCAL_LOOP_UPDATE, &flags);
4897 	}
4898 
4899 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
4900 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
4901 			ql_dbg(ql_dbg_disc, vha, 0x2015,
4902 			    "Loop resync needed, failing.\n");
4903 			rval = QLA_FUNCTION_FAILED;
4904 		} else
4905 			rval = qla2x00_configure_local_loop(vha);
4906 	}
4907 
4908 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
4909 		if (LOOP_TRANSITION(vha)) {
4910 			ql_dbg(ql_dbg_disc, vha, 0x2099,
4911 			    "Needs RSCN update and loop transition.\n");
4912 			rval = QLA_FUNCTION_FAILED;
4913 		}
4914 		else
4915 			rval = qla2x00_configure_fabric(vha);
4916 	}
4917 
4918 	if (rval == QLA_SUCCESS) {
4919 		if (atomic_read(&vha->loop_down_timer) ||
4920 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
4921 			rval = QLA_FUNCTION_FAILED;
4922 		} else {
4923 			atomic_set(&vha->loop_state, LOOP_READY);
4924 			ql_dbg(ql_dbg_disc, vha, 0x2069,
4925 			    "LOOP READY.\n");
4926 			ha->flags.fw_init_done = 1;
4927 
4928 			/*
4929 			 * Process any ATIO queue entries that came in
4930 			 * while we weren't online.
4931 			 */
4932 			if (qla_tgt_mode_enabled(vha) ||
4933 			    qla_dual_mode_enabled(vha)) {
4934 				spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4935 				qlt_24xx_process_atio_queue(vha, 0);
4936 				spin_unlock_irqrestore(&ha->tgt.atio_lock,
4937 				    flags);
4938 			}
4939 		}
4940 	}
4941 
4942 	if (rval) {
4943 		ql_dbg(ql_dbg_disc, vha, 0x206a,
4944 		    "%s *** FAILED ***.\n", __func__);
4945 	} else {
4946 		ql_dbg(ql_dbg_disc, vha, 0x206b,
4947 		    "%s: exiting normally.\n", __func__);
4948 	}
4949 
4950 	/* Restore state if a resync event occurred during processing */
4951 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
4952 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
4953 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4954 		if (test_bit(RSCN_UPDATE, &save_flags)) {
4955 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
4956 		}
4957 	}
4958 
4959 	return (rval);
4960 }
4961 
4962 /*
4963  * qla2x00_configure_local_loop
4964  *	Updates Fibre Channel Device Database with local loop devices.
4965  *
4966  * Input:
4967  *	ha = adapter block pointer.
4968  *
4969  * Returns:
4970  *	0 = success.
4971  */
4972 static int
4973 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
4974 {
4975 	int		rval, rval2;
4976 	int		found_devs;
4977 	int		found;
4978 	fc_port_t	*fcport, *new_fcport;
4979 
4980 	uint16_t	index;
4981 	uint16_t	entries;
4982 	struct gid_list_info *gid;
4983 	uint16_t	loop_id;
4984 	uint8_t		domain, area, al_pa;
4985 	struct qla_hw_data *ha = vha->hw;
4986 	unsigned long flags;
4987 
4988 	/* Inititae N2N login. */
4989 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) {
4990 		/* borrowing */
4991 		u32 *bp, i, sz;
4992 
4993 		memset(ha->init_cb, 0, ha->init_cb_size);
4994 		sz = min_t(int, sizeof(struct els_plogi_payload),
4995 		    ha->init_cb_size);
4996 		rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma,
4997 		    (void *)ha->init_cb, sz);
4998 		if (rval == QLA_SUCCESS) {
4999 			bp = (uint32_t *)ha->init_cb;
5000 			for (i = 0; i < sz/4 ; i++, bp++)
5001 				*bp = cpu_to_be32(*bp);
5002 
5003 			memcpy(&ha->plogi_els_payld.data, (void *)ha->init_cb,
5004 			    sizeof(ha->plogi_els_payld.data));
5005 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5006 		} else {
5007 			ql_dbg(ql_dbg_init, vha, 0x00d1,
5008 			    "PLOGI ELS param read fail.\n");
5009 		}
5010 		return QLA_SUCCESS;
5011 	}
5012 
5013 	found_devs = 0;
5014 	new_fcport = NULL;
5015 	entries = MAX_FIBRE_DEVICES_LOOP;
5016 
5017 	/* Get list of logged in devices. */
5018 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
5019 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
5020 	    &entries);
5021 	if (rval != QLA_SUCCESS)
5022 		goto cleanup_allocation;
5023 
5024 	ql_dbg(ql_dbg_disc, vha, 0x2011,
5025 	    "Entries in ID list (%d).\n", entries);
5026 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
5027 	    ha->gid_list, entries * sizeof(*ha->gid_list));
5028 
5029 	if (entries == 0) {
5030 		spin_lock_irqsave(&vha->work_lock, flags);
5031 		vha->scan.scan_retry++;
5032 		spin_unlock_irqrestore(&vha->work_lock, flags);
5033 
5034 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5035 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5036 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5037 		}
5038 	} else {
5039 		vha->scan.scan_retry = 0;
5040 	}
5041 
5042 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5043 		fcport->scan_state = QLA_FCPORT_SCAN;
5044 	}
5045 
5046 	/* Allocate temporary fcport for any new fcports discovered. */
5047 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5048 	if (new_fcport == NULL) {
5049 		ql_log(ql_log_warn, vha, 0x2012,
5050 		    "Memory allocation failed for fcport.\n");
5051 		rval = QLA_MEMORY_ALLOC_FAILED;
5052 		goto cleanup_allocation;
5053 	}
5054 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5055 
5056 	/* Add devices to port list. */
5057 	gid = ha->gid_list;
5058 	for (index = 0; index < entries; index++) {
5059 		domain = gid->domain;
5060 		area = gid->area;
5061 		al_pa = gid->al_pa;
5062 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
5063 			loop_id = gid->loop_id_2100;
5064 		else
5065 			loop_id = le16_to_cpu(gid->loop_id);
5066 		gid = (void *)gid + ha->gid_list_info_size;
5067 
5068 		/* Bypass reserved domain fields. */
5069 		if ((domain & 0xf0) == 0xf0)
5070 			continue;
5071 
5072 		/* Bypass if not same domain and area of adapter. */
5073 		if (area && domain && ((area != vha->d_id.b.area) ||
5074 		    (domain != vha->d_id.b.domain)) &&
5075 		    (ha->current_topology == ISP_CFG_NL))
5076 			continue;
5077 
5078 
5079 		/* Bypass invalid local loop ID. */
5080 		if (loop_id > LAST_LOCAL_LOOP_ID)
5081 			continue;
5082 
5083 		memset(new_fcport->port_name, 0, WWN_SIZE);
5084 
5085 		/* Fill in member data. */
5086 		new_fcport->d_id.b.domain = domain;
5087 		new_fcport->d_id.b.area = area;
5088 		new_fcport->d_id.b.al_pa = al_pa;
5089 		new_fcport->loop_id = loop_id;
5090 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5091 
5092 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
5093 		if (rval2 != QLA_SUCCESS) {
5094 			ql_dbg(ql_dbg_disc, vha, 0x2097,
5095 			    "Failed to retrieve fcport information "
5096 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
5097 			    rval2, new_fcport->loop_id);
5098 			/* Skip retry if N2N */
5099 			if (ha->current_topology != ISP_CFG_N) {
5100 				ql_dbg(ql_dbg_disc, vha, 0x2105,
5101 				    "Scheduling resync.\n");
5102 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5103 				continue;
5104 			}
5105 		}
5106 
5107 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5108 		/* Check for matching device in port list. */
5109 		found = 0;
5110 		fcport = NULL;
5111 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5112 			if (memcmp(new_fcport->port_name, fcport->port_name,
5113 			    WWN_SIZE))
5114 				continue;
5115 
5116 			fcport->flags &= ~FCF_FABRIC_DEVICE;
5117 			fcport->loop_id = new_fcport->loop_id;
5118 			fcport->port_type = new_fcport->port_type;
5119 			fcport->d_id.b24 = new_fcport->d_id.b24;
5120 			memcpy(fcport->node_name, new_fcport->node_name,
5121 			    WWN_SIZE);
5122 			fcport->scan_state = QLA_FCPORT_FOUND;
5123 			found++;
5124 			break;
5125 		}
5126 
5127 		if (!found) {
5128 			/* New device, add to fcports list. */
5129 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
5130 
5131 			/* Allocate a new replacement fcport. */
5132 			fcport = new_fcport;
5133 
5134 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5135 
5136 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5137 
5138 			if (new_fcport == NULL) {
5139 				ql_log(ql_log_warn, vha, 0xd031,
5140 				    "Failed to allocate memory for fcport.\n");
5141 				rval = QLA_MEMORY_ALLOC_FAILED;
5142 				goto cleanup_allocation;
5143 			}
5144 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5145 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5146 		}
5147 
5148 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5149 
5150 		/* Base iIDMA settings on HBA port speed. */
5151 		fcport->fp_speed = ha->link_data_rate;
5152 
5153 		found_devs++;
5154 	}
5155 
5156 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5157 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5158 			break;
5159 
5160 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5161 			if ((qla_dual_mode_enabled(vha) ||
5162 			    qla_ini_mode_enabled(vha)) &&
5163 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5164 				qla2x00_mark_device_lost(vha, fcport,
5165 					ql2xplogiabsentdevice, 0);
5166 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5167 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5168 				    fcport->port_type != FCT_INITIATOR &&
5169 				    fcport->port_type != FCT_BROADCAST) {
5170 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5171 					    "%s %d %8phC post del sess\n",
5172 					    __func__, __LINE__,
5173 					    fcport->port_name);
5174 
5175 					qlt_schedule_sess_for_deletion(fcport);
5176 					continue;
5177 				}
5178 			}
5179 		}
5180 
5181 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5182 			qla24xx_fcport_handle_login(vha, fcport);
5183 	}
5184 
5185 cleanup_allocation:
5186 	kfree(new_fcport);
5187 
5188 	if (rval != QLA_SUCCESS) {
5189 		ql_dbg(ql_dbg_disc, vha, 0x2098,
5190 		    "Configure local loop error exit: rval=%x.\n", rval);
5191 	}
5192 
5193 	return (rval);
5194 }
5195 
5196 static void
5197 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5198 {
5199 	int rval;
5200 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5201 	struct qla_hw_data *ha = vha->hw;
5202 
5203 	if (!IS_IIDMA_CAPABLE(ha))
5204 		return;
5205 
5206 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5207 		return;
5208 
5209 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5210 	    fcport->fp_speed > ha->link_data_rate ||
5211 	    !ha->flags.gpsc_supported)
5212 		return;
5213 
5214 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5215 	    mb);
5216 	if (rval != QLA_SUCCESS) {
5217 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5218 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5219 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5220 	} else {
5221 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5222 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5223 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5224 		    fcport->fp_speed, fcport->port_name);
5225 	}
5226 }
5227 
5228 void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5229 {
5230 	qla2x00_iidma_fcport(vha, fcport);
5231 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5232 }
5233 
5234 int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5235 {
5236 	struct qla_work_evt *e;
5237 
5238 	e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
5239 	if (!e)
5240 		return QLA_FUNCTION_FAILED;
5241 
5242 	e->u.fcport.fcport = fcport;
5243 	return qla2x00_post_work(vha, e);
5244 }
5245 
5246 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5247 static void
5248 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5249 {
5250 	struct fc_rport_identifiers rport_ids;
5251 	struct fc_rport *rport;
5252 	unsigned long flags;
5253 
5254 	if (atomic_read(&fcport->state) == FCS_ONLINE)
5255 		return;
5256 
5257 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5258 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5259 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5260 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5261 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5262 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5263 	if (!rport) {
5264 		ql_log(ql_log_warn, vha, 0x2006,
5265 		    "Unable to allocate fc remote port.\n");
5266 		return;
5267 	}
5268 
5269 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5270 	*((fc_port_t **)rport->dd_data) = fcport;
5271 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5272 
5273 	rport->supported_classes = fcport->supported_classes;
5274 
5275 	rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
5276 	if (fcport->port_type == FCT_INITIATOR)
5277 		rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
5278 	if (fcport->port_type == FCT_TARGET)
5279 		rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
5280 	if (fcport->port_type & FCT_NVME_INITIATOR)
5281 		rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
5282 	if (fcport->port_type & FCT_NVME_TARGET)
5283 		rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
5284 	if (fcport->port_type & FCT_NVME_DISCOVERY)
5285 		rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
5286 
5287 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5288 	    "%s %8phN. rport %p is %s mode\n",
5289 	    __func__, fcport->port_name, rport,
5290 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
5291 	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
5292 
5293 	fc_remote_port_rolechg(rport, rport_ids.roles);
5294 }
5295 
5296 /*
5297  * qla2x00_update_fcport
5298  *	Updates device on list.
5299  *
5300  * Input:
5301  *	ha = adapter block pointer.
5302  *	fcport = port structure pointer.
5303  *
5304  * Return:
5305  *	0  - Success
5306  *  BIT_0 - error
5307  *
5308  * Context:
5309  *	Kernel context.
5310  */
5311 void
5312 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5313 {
5314 	if (IS_SW_RESV_ADDR(fcport->d_id))
5315 		return;
5316 
5317 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5318 	    __func__, fcport->port_name);
5319 
5320 	fcport->disc_state = DSC_UPD_FCPORT;
5321 	fcport->login_retry = vha->hw->login_retry_count;
5322 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5323 	fcport->deleted = 0;
5324 	fcport->logout_on_delete = 1;
5325 	fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
5326 
5327 	switch (vha->hw->current_topology) {
5328 	case ISP_CFG_N:
5329 	case ISP_CFG_NL:
5330 		fcport->keep_nport_handle = 1;
5331 		break;
5332 	default:
5333 		break;
5334 	}
5335 
5336 	qla2x00_iidma_fcport(vha, fcport);
5337 
5338 	if (fcport->fc4f_nvme) {
5339 		qla_nvme_register_remote(vha, fcport);
5340 		fcport->disc_state = DSC_LOGIN_COMPLETE;
5341 		qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5342 		return;
5343 	}
5344 
5345 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5346 
5347 	switch (vha->host->active_mode) {
5348 	case MODE_INITIATOR:
5349 		qla2x00_reg_remote_port(vha, fcport);
5350 		break;
5351 	case MODE_TARGET:
5352 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5353 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5354 			qlt_fc_port_added(vha, fcport);
5355 		break;
5356 	case MODE_DUAL:
5357 		qla2x00_reg_remote_port(vha, fcport);
5358 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5359 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5360 			qlt_fc_port_added(vha, fcport);
5361 		break;
5362 	default:
5363 		break;
5364 	}
5365 
5366 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5367 
5368 	if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
5369 		if (fcport->id_changed) {
5370 			fcport->id_changed = 0;
5371 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5372 			    "%s %d %8phC post gfpnid fcp_cnt %d\n",
5373 			    __func__, __LINE__, fcport->port_name,
5374 			    vha->fcport_count);
5375 			qla24xx_post_gfpnid_work(vha, fcport);
5376 		} else {
5377 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5378 			    "%s %d %8phC post gpsc fcp_cnt %d\n",
5379 			    __func__, __LINE__, fcport->port_name,
5380 			    vha->fcport_count);
5381 			qla24xx_post_gpsc_work(vha, fcport);
5382 		}
5383 	}
5384 
5385 	fcport->disc_state = DSC_LOGIN_COMPLETE;
5386 }
5387 
5388 void qla_register_fcport_fn(struct work_struct *work)
5389 {
5390 	fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
5391 	u32 rscn_gen = fcport->rscn_gen;
5392 	u16 data[2];
5393 
5394 	if (IS_SW_RESV_ADDR(fcport->d_id))
5395 		return;
5396 
5397 	qla2x00_update_fcport(fcport->vha, fcport);
5398 
5399 	if (rscn_gen != fcport->rscn_gen) {
5400 		/* RSCN(s) came in while registration */
5401 		switch (fcport->next_disc_state) {
5402 		case DSC_DELETE_PEND:
5403 			qlt_schedule_sess_for_deletion(fcport);
5404 			break;
5405 		case DSC_ADISC:
5406 			data[0] = data[1] = 0;
5407 			qla2x00_post_async_adisc_work(fcport->vha, fcport,
5408 			    data);
5409 			break;
5410 		default:
5411 			break;
5412 		}
5413 	}
5414 }
5415 
5416 /*
5417  * qla2x00_configure_fabric
5418  *      Setup SNS devices with loop ID's.
5419  *
5420  * Input:
5421  *      ha = adapter block pointer.
5422  *
5423  * Returns:
5424  *      0 = success.
5425  *      BIT_0 = error
5426  */
5427 static int
5428 qla2x00_configure_fabric(scsi_qla_host_t *vha)
5429 {
5430 	int	rval;
5431 	fc_port_t	*fcport;
5432 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5433 	uint16_t	loop_id;
5434 	LIST_HEAD(new_fcports);
5435 	struct qla_hw_data *ha = vha->hw;
5436 	int		discovery_gen;
5437 
5438 	/* If FL port exists, then SNS is present */
5439 	if (IS_FWI2_CAPABLE(ha))
5440 		loop_id = NPH_F_PORT;
5441 	else
5442 		loop_id = SNS_FL_PORT;
5443 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
5444 	if (rval != QLA_SUCCESS) {
5445 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
5446 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
5447 
5448 		vha->device_flags &= ~SWITCH_FOUND;
5449 		return (QLA_SUCCESS);
5450 	}
5451 	vha->device_flags |= SWITCH_FOUND;
5452 
5453 
5454 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
5455 		rval = qla2x00_send_change_request(vha, 0x3, 0);
5456 		if (rval != QLA_SUCCESS)
5457 			ql_log(ql_log_warn, vha, 0x121,
5458 				"Failed to enable receiving of RSCN requests: 0x%x.\n",
5459 				rval);
5460 	}
5461 
5462 
5463 	do {
5464 		qla2x00_mgmt_svr_login(vha);
5465 
5466 		/* FDMI support. */
5467 		if (ql2xfdmienable &&
5468 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
5469 			qla2x00_fdmi_register(vha);
5470 
5471 		/* Ensure we are logged into the SNS. */
5472 		loop_id = NPH_SNS_LID(ha);
5473 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
5474 		    0xfc, mb, BIT_1|BIT_0);
5475 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5476 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
5477 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
5478 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
5479 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5480 			return rval;
5481 		}
5482 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
5483 			if (qla2x00_rft_id(vha)) {
5484 				/* EMPTY */
5485 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
5486 				    "Register FC-4 TYPE failed.\n");
5487 				if (test_bit(LOOP_RESYNC_NEEDED,
5488 				    &vha->dpc_flags))
5489 					break;
5490 			}
5491 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
5492 				/* EMPTY */
5493 				ql_dbg(ql_dbg_disc, vha, 0x209a,
5494 				    "Register FC-4 Features failed.\n");
5495 				if (test_bit(LOOP_RESYNC_NEEDED,
5496 				    &vha->dpc_flags))
5497 					break;
5498 			}
5499 			if (vha->flags.nvme_enabled) {
5500 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
5501 					ql_dbg(ql_dbg_disc, vha, 0x2049,
5502 					    "Register NVME FC Type Features failed.\n");
5503 				}
5504 			}
5505 			if (qla2x00_rnn_id(vha)) {
5506 				/* EMPTY */
5507 				ql_dbg(ql_dbg_disc, vha, 0x2104,
5508 				    "Register Node Name failed.\n");
5509 				if (test_bit(LOOP_RESYNC_NEEDED,
5510 				    &vha->dpc_flags))
5511 					break;
5512 			} else if (qla2x00_rsnn_nn(vha)) {
5513 				/* EMPTY */
5514 				ql_dbg(ql_dbg_disc, vha, 0x209b,
5515 				    "Register Symbolic Node Name failed.\n");
5516 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5517 					break;
5518 			}
5519 		}
5520 
5521 
5522 		/* Mark the time right before querying FW for connected ports.
5523 		 * This process is long, asynchronous and by the time it's done,
5524 		 * collected information might not be accurate anymore. E.g.
5525 		 * disconnected port might have re-connected and a brand new
5526 		 * session has been created. In this case session's generation
5527 		 * will be newer than discovery_gen. */
5528 		qlt_do_generation_tick(vha, &discovery_gen);
5529 
5530 		if (USE_ASYNC_SCAN(ha)) {
5531 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
5532 			    NULL);
5533 			if (rval)
5534 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5535 		} else  {
5536 			list_for_each_entry(fcport, &vha->vp_fcports, list)
5537 				fcport->scan_state = QLA_FCPORT_SCAN;
5538 
5539 			rval = qla2x00_find_all_fabric_devs(vha);
5540 		}
5541 		if (rval != QLA_SUCCESS)
5542 			break;
5543 	} while (0);
5544 
5545 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
5546 		qla_nvme_register_hba(vha);
5547 
5548 	if (rval)
5549 		ql_dbg(ql_dbg_disc, vha, 0x2068,
5550 		    "Configure fabric error exit rval=%d.\n", rval);
5551 
5552 	return (rval);
5553 }
5554 
5555 /*
5556  * qla2x00_find_all_fabric_devs
5557  *
5558  * Input:
5559  *	ha = adapter block pointer.
5560  *	dev = database device entry pointer.
5561  *
5562  * Returns:
5563  *	0 = success.
5564  *
5565  * Context:
5566  *	Kernel context.
5567  */
5568 static int
5569 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
5570 {
5571 	int		rval;
5572 	uint16_t	loop_id;
5573 	fc_port_t	*fcport, *new_fcport;
5574 	int		found;
5575 
5576 	sw_info_t	*swl;
5577 	int		swl_idx;
5578 	int		first_dev, last_dev;
5579 	port_id_t	wrap = {}, nxt_d_id;
5580 	struct qla_hw_data *ha = vha->hw;
5581 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5582 	unsigned long flags;
5583 
5584 	rval = QLA_SUCCESS;
5585 
5586 	/* Try GID_PT to get device list, else GAN. */
5587 	if (!ha->swl)
5588 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
5589 		    GFP_KERNEL);
5590 	swl = ha->swl;
5591 	if (!swl) {
5592 		/*EMPTY*/
5593 		ql_dbg(ql_dbg_disc, vha, 0x209c,
5594 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
5595 	} else {
5596 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
5597 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
5598 			swl = NULL;
5599 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5600 				return rval;
5601 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
5602 			swl = NULL;
5603 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5604 				return rval;
5605 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
5606 			swl = NULL;
5607 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5608 				return rval;
5609 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
5610 			swl = NULL;
5611 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5612 				return rval;
5613 		}
5614 
5615 		/* If other queries succeeded probe for FC-4 type */
5616 		if (swl) {
5617 			qla2x00_gff_id(vha, swl);
5618 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5619 				return rval;
5620 		}
5621 	}
5622 	swl_idx = 0;
5623 
5624 	/* Allocate temporary fcport for any new fcports discovered. */
5625 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5626 	if (new_fcport == NULL) {
5627 		ql_log(ql_log_warn, vha, 0x209d,
5628 		    "Failed to allocate memory for fcport.\n");
5629 		return (QLA_MEMORY_ALLOC_FAILED);
5630 	}
5631 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5632 	/* Set start port ID scan at adapter ID. */
5633 	first_dev = 1;
5634 	last_dev = 0;
5635 
5636 	/* Starting free loop ID. */
5637 	loop_id = ha->min_external_loopid;
5638 	for (; loop_id <= ha->max_loop_id; loop_id++) {
5639 		if (qla2x00_is_reserved_id(vha, loop_id))
5640 			continue;
5641 
5642 		if (ha->current_topology == ISP_CFG_FL &&
5643 		    (atomic_read(&vha->loop_down_timer) ||
5644 		     LOOP_TRANSITION(vha))) {
5645 			atomic_set(&vha->loop_down_timer, 0);
5646 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5647 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5648 			break;
5649 		}
5650 
5651 		if (swl != NULL) {
5652 			if (last_dev) {
5653 				wrap.b24 = new_fcport->d_id.b24;
5654 			} else {
5655 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
5656 				memcpy(new_fcport->node_name,
5657 				    swl[swl_idx].node_name, WWN_SIZE);
5658 				memcpy(new_fcport->port_name,
5659 				    swl[swl_idx].port_name, WWN_SIZE);
5660 				memcpy(new_fcport->fabric_port_name,
5661 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
5662 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
5663 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
5664 
5665 				new_fcport->nvme_flag = 0;
5666 				new_fcport->fc4f_nvme = 0;
5667 				if (vha->flags.nvme_enabled &&
5668 				    swl[swl_idx].fc4f_nvme) {
5669 					new_fcport->fc4f_nvme =
5670 					    swl[swl_idx].fc4f_nvme;
5671 					ql_log(ql_log_info, vha, 0x2131,
5672 					    "FOUND: NVME port %8phC as FC Type 28h\n",
5673 					    new_fcport->port_name);
5674 				}
5675 
5676 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
5677 					last_dev = 1;
5678 				}
5679 				swl_idx++;
5680 			}
5681 		} else {
5682 			/* Send GA_NXT to the switch */
5683 			rval = qla2x00_ga_nxt(vha, new_fcport);
5684 			if (rval != QLA_SUCCESS) {
5685 				ql_log(ql_log_warn, vha, 0x209e,
5686 				    "SNS scan failed -- assuming "
5687 				    "zero-entry result.\n");
5688 				rval = QLA_SUCCESS;
5689 				break;
5690 			}
5691 		}
5692 
5693 		/* If wrap on switch device list, exit. */
5694 		if (first_dev) {
5695 			wrap.b24 = new_fcport->d_id.b24;
5696 			first_dev = 0;
5697 		} else if (new_fcport->d_id.b24 == wrap.b24) {
5698 			ql_dbg(ql_dbg_disc, vha, 0x209f,
5699 			    "Device wrap (%02x%02x%02x).\n",
5700 			    new_fcport->d_id.b.domain,
5701 			    new_fcport->d_id.b.area,
5702 			    new_fcport->d_id.b.al_pa);
5703 			break;
5704 		}
5705 
5706 		/* Bypass if same physical adapter. */
5707 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
5708 			continue;
5709 
5710 		/* Bypass virtual ports of the same host. */
5711 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
5712 			continue;
5713 
5714 		/* Bypass if same domain and area of adapter. */
5715 		if (((new_fcport->d_id.b24 & 0xffff00) ==
5716 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
5717 			ISP_CFG_FL)
5718 			    continue;
5719 
5720 		/* Bypass reserved domain fields. */
5721 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
5722 			continue;
5723 
5724 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
5725 		if (ql2xgffidenable &&
5726 		    (new_fcport->fc4_type != FC4_TYPE_FCP_SCSI &&
5727 		    new_fcport->fc4_type != FC4_TYPE_UNKNOWN))
5728 			continue;
5729 
5730 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5731 
5732 		/* Locate matching device in database. */
5733 		found = 0;
5734 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5735 			if (memcmp(new_fcport->port_name, fcport->port_name,
5736 			    WWN_SIZE))
5737 				continue;
5738 
5739 			fcport->scan_state = QLA_FCPORT_FOUND;
5740 
5741 			found++;
5742 
5743 			/* Update port state. */
5744 			memcpy(fcport->fabric_port_name,
5745 			    new_fcport->fabric_port_name, WWN_SIZE);
5746 			fcport->fp_speed = new_fcport->fp_speed;
5747 
5748 			/*
5749 			 * If address the same and state FCS_ONLINE
5750 			 * (or in target mode), nothing changed.
5751 			 */
5752 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
5753 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
5754 			     (vha->host->active_mode == MODE_TARGET))) {
5755 				break;
5756 			}
5757 
5758 			/*
5759 			 * If device was not a fabric device before.
5760 			 */
5761 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
5762 				fcport->d_id.b24 = new_fcport->d_id.b24;
5763 				qla2x00_clear_loop_id(fcport);
5764 				fcport->flags |= (FCF_FABRIC_DEVICE |
5765 				    FCF_LOGIN_NEEDED);
5766 				break;
5767 			}
5768 
5769 			/*
5770 			 * Port ID changed or device was marked to be updated;
5771 			 * Log it out if still logged in and mark it for
5772 			 * relogin later.
5773 			 */
5774 			if (qla_tgt_mode_enabled(base_vha)) {
5775 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
5776 					 "port changed FC ID, %8phC"
5777 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
5778 					 fcport->port_name,
5779 					 fcport->d_id.b.domain,
5780 					 fcport->d_id.b.area,
5781 					 fcport->d_id.b.al_pa,
5782 					 fcport->loop_id,
5783 					 new_fcport->d_id.b.domain,
5784 					 new_fcport->d_id.b.area,
5785 					 new_fcport->d_id.b.al_pa);
5786 				fcport->d_id.b24 = new_fcport->d_id.b24;
5787 				break;
5788 			}
5789 
5790 			fcport->d_id.b24 = new_fcport->d_id.b24;
5791 			fcport->flags |= FCF_LOGIN_NEEDED;
5792 			break;
5793 		}
5794 
5795 		if (fcport->fc4f_nvme) {
5796 			if (fcport->disc_state == DSC_DELETE_PEND) {
5797 				fcport->disc_state = DSC_GNL;
5798 				vha->fcport_count--;
5799 				fcport->login_succ = 0;
5800 			}
5801 		}
5802 
5803 		if (found) {
5804 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5805 			continue;
5806 		}
5807 		/* If device was not in our fcports list, then add it. */
5808 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5809 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
5810 
5811 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5812 
5813 
5814 		/* Allocate a new replacement fcport. */
5815 		nxt_d_id.b24 = new_fcport->d_id.b24;
5816 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5817 		if (new_fcport == NULL) {
5818 			ql_log(ql_log_warn, vha, 0xd032,
5819 			    "Memory allocation failed for fcport.\n");
5820 			return (QLA_MEMORY_ALLOC_FAILED);
5821 		}
5822 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5823 		new_fcport->d_id.b24 = nxt_d_id.b24;
5824 	}
5825 
5826 	qla2x00_free_fcport(new_fcport);
5827 
5828 	/*
5829 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
5830 	 */
5831 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5832 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5833 			break;
5834 
5835 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
5836 		    (fcport->flags & FCF_LOGIN_NEEDED) == 0)
5837 			continue;
5838 
5839 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5840 			if ((qla_dual_mode_enabled(vha) ||
5841 			    qla_ini_mode_enabled(vha)) &&
5842 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5843 				qla2x00_mark_device_lost(vha, fcport,
5844 					ql2xplogiabsentdevice, 0);
5845 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5846 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5847 				    fcport->port_type != FCT_INITIATOR &&
5848 				    fcport->port_type != FCT_BROADCAST) {
5849 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5850 					    "%s %d %8phC post del sess\n",
5851 					    __func__, __LINE__,
5852 					    fcport->port_name);
5853 					qlt_schedule_sess_for_deletion(fcport);
5854 					continue;
5855 				}
5856 			}
5857 		}
5858 
5859 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5860 			qla24xx_fcport_handle_login(vha, fcport);
5861 	}
5862 	return (rval);
5863 }
5864 
5865 /* FW does not set aside Loop id for MGMT Server/FFFFFAh */
5866 int
5867 qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
5868 {
5869 	int loop_id = FC_NO_LOOP_ID;
5870 	int lid = NPH_MGMT_SERVER - vha->vp_idx;
5871 	unsigned long flags;
5872 	struct qla_hw_data *ha = vha->hw;
5873 
5874 	if (vha->vp_idx == 0) {
5875 		set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
5876 		return NPH_MGMT_SERVER;
5877 	}
5878 
5879 	/* pick id from high and work down to low */
5880 	spin_lock_irqsave(&ha->vport_slock, flags);
5881 	for (; lid > 0; lid--) {
5882 		if (!test_bit(lid, vha->hw->loop_id_map)) {
5883 			set_bit(lid, vha->hw->loop_id_map);
5884 			loop_id = lid;
5885 			break;
5886 		}
5887 	}
5888 	spin_unlock_irqrestore(&ha->vport_slock, flags);
5889 
5890 	return loop_id;
5891 }
5892 
5893 /*
5894  * qla2x00_fabric_login
5895  *	Issue fabric login command.
5896  *
5897  * Input:
5898  *	ha = adapter block pointer.
5899  *	device = pointer to FC device type structure.
5900  *
5901  * Returns:
5902  *      0 - Login successfully
5903  *      1 - Login failed
5904  *      2 - Initiator device
5905  *      3 - Fatal error
5906  */
5907 int
5908 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
5909     uint16_t *next_loopid)
5910 {
5911 	int	rval;
5912 	int	retry;
5913 	uint16_t tmp_loopid;
5914 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5915 	struct qla_hw_data *ha = vha->hw;
5916 
5917 	retry = 0;
5918 	tmp_loopid = 0;
5919 
5920 	for (;;) {
5921 		ql_dbg(ql_dbg_disc, vha, 0x2000,
5922 		    "Trying Fabric Login w/loop id 0x%04x for port "
5923 		    "%02x%02x%02x.\n",
5924 		    fcport->loop_id, fcport->d_id.b.domain,
5925 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
5926 
5927 		/* Login fcport on switch. */
5928 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
5929 		    fcport->d_id.b.domain, fcport->d_id.b.area,
5930 		    fcport->d_id.b.al_pa, mb, BIT_0);
5931 		if (rval != QLA_SUCCESS) {
5932 			return rval;
5933 		}
5934 		if (mb[0] == MBS_PORT_ID_USED) {
5935 			/*
5936 			 * Device has another loop ID.  The firmware team
5937 			 * recommends the driver perform an implicit login with
5938 			 * the specified ID again. The ID we just used is save
5939 			 * here so we return with an ID that can be tried by
5940 			 * the next login.
5941 			 */
5942 			retry++;
5943 			tmp_loopid = fcport->loop_id;
5944 			fcport->loop_id = mb[1];
5945 
5946 			ql_dbg(ql_dbg_disc, vha, 0x2001,
5947 			    "Fabric Login: port in use - next loop "
5948 			    "id=0x%04x, port id= %02x%02x%02x.\n",
5949 			    fcport->loop_id, fcport->d_id.b.domain,
5950 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
5951 
5952 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
5953 			/*
5954 			 * Login succeeded.
5955 			 */
5956 			if (retry) {
5957 				/* A retry occurred before. */
5958 				*next_loopid = tmp_loopid;
5959 			} else {
5960 				/*
5961 				 * No retry occurred before. Just increment the
5962 				 * ID value for next login.
5963 				 */
5964 				*next_loopid = (fcport->loop_id + 1);
5965 			}
5966 
5967 			if (mb[1] & BIT_0) {
5968 				fcport->port_type = FCT_INITIATOR;
5969 			} else {
5970 				fcport->port_type = FCT_TARGET;
5971 				if (mb[1] & BIT_1) {
5972 					fcport->flags |= FCF_FCP2_DEVICE;
5973 				}
5974 			}
5975 
5976 			if (mb[10] & BIT_0)
5977 				fcport->supported_classes |= FC_COS_CLASS2;
5978 			if (mb[10] & BIT_1)
5979 				fcport->supported_classes |= FC_COS_CLASS3;
5980 
5981 			if (IS_FWI2_CAPABLE(ha)) {
5982 				if (mb[10] & BIT_7)
5983 					fcport->flags |=
5984 					    FCF_CONF_COMP_SUPPORTED;
5985 			}
5986 
5987 			rval = QLA_SUCCESS;
5988 			break;
5989 		} else if (mb[0] == MBS_LOOP_ID_USED) {
5990 			/*
5991 			 * Loop ID already used, try next loop ID.
5992 			 */
5993 			fcport->loop_id++;
5994 			rval = qla2x00_find_new_loop_id(vha, fcport);
5995 			if (rval != QLA_SUCCESS) {
5996 				/* Ran out of loop IDs to use */
5997 				break;
5998 			}
5999 		} else if (mb[0] == MBS_COMMAND_ERROR) {
6000 			/*
6001 			 * Firmware possibly timed out during login. If NO
6002 			 * retries are left to do then the device is declared
6003 			 * dead.
6004 			 */
6005 			*next_loopid = fcport->loop_id;
6006 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6007 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6008 			    fcport->d_id.b.al_pa);
6009 			qla2x00_mark_device_lost(vha, fcport, 1, 0);
6010 
6011 			rval = 1;
6012 			break;
6013 		} else {
6014 			/*
6015 			 * unrecoverable / not handled error
6016 			 */
6017 			ql_dbg(ql_dbg_disc, vha, 0x2002,
6018 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
6019 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
6020 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
6021 			    fcport->loop_id, jiffies);
6022 
6023 			*next_loopid = fcport->loop_id;
6024 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6025 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6026 			    fcport->d_id.b.al_pa);
6027 			qla2x00_clear_loop_id(fcport);
6028 			fcport->login_retry = 0;
6029 
6030 			rval = 3;
6031 			break;
6032 		}
6033 	}
6034 
6035 	return (rval);
6036 }
6037 
6038 /*
6039  * qla2x00_local_device_login
6040  *	Issue local device login command.
6041  *
6042  * Input:
6043  *	ha = adapter block pointer.
6044  *	loop_id = loop id of device to login to.
6045  *
6046  * Returns (Where's the #define!!!!):
6047  *      0 - Login successfully
6048  *      1 - Login failed
6049  *      3 - Fatal error
6050  */
6051 int
6052 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
6053 {
6054 	int		rval;
6055 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6056 
6057 	memset(mb, 0, sizeof(mb));
6058 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
6059 	if (rval == QLA_SUCCESS) {
6060 		/* Interrogate mailbox registers for any errors */
6061 		if (mb[0] == MBS_COMMAND_ERROR)
6062 			rval = 1;
6063 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
6064 			/* device not in PCB table */
6065 			rval = 3;
6066 	}
6067 
6068 	return (rval);
6069 }
6070 
6071 /*
6072  *  qla2x00_loop_resync
6073  *      Resync with fibre channel devices.
6074  *
6075  * Input:
6076  *      ha = adapter block pointer.
6077  *
6078  * Returns:
6079  *      0 = success
6080  */
6081 int
6082 qla2x00_loop_resync(scsi_qla_host_t *vha)
6083 {
6084 	int rval = QLA_SUCCESS;
6085 	uint32_t wait_time;
6086 
6087 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6088 	if (vha->flags.online) {
6089 		if (!(rval = qla2x00_fw_ready(vha))) {
6090 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
6091 			wait_time = 256;
6092 			do {
6093 				if (!IS_QLAFX00(vha->hw)) {
6094 					/*
6095 					 * Issue a marker after FW becomes
6096 					 * ready.
6097 					 */
6098 					qla2x00_marker(vha, vha->hw->base_qpair,
6099 					    0, 0, MK_SYNC_ALL);
6100 					vha->marker_needed = 0;
6101 				}
6102 
6103 				/* Remap devices on Loop. */
6104 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6105 
6106 				if (IS_QLAFX00(vha->hw))
6107 					qlafx00_configure_devices(vha);
6108 				else
6109 					qla2x00_configure_loop(vha);
6110 
6111 				wait_time--;
6112 			} while (!atomic_read(&vha->loop_down_timer) &&
6113 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6114 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
6115 				&vha->dpc_flags)));
6116 		}
6117 	}
6118 
6119 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6120 		return (QLA_FUNCTION_FAILED);
6121 
6122 	if (rval)
6123 		ql_dbg(ql_dbg_disc, vha, 0x206c,
6124 		    "%s *** FAILED ***.\n", __func__);
6125 
6126 	return (rval);
6127 }
6128 
6129 /*
6130 * qla2x00_perform_loop_resync
6131 * Description: This function will set the appropriate flags and call
6132 *              qla2x00_loop_resync. If successful loop will be resynced
6133 * Arguments : scsi_qla_host_t pointer
6134 * returm    : Success or Failure
6135 */
6136 
6137 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
6138 {
6139 	int32_t rval = 0;
6140 
6141 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
6142 		/*Configure the flags so that resync happens properly*/
6143 		atomic_set(&ha->loop_down_timer, 0);
6144 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
6145 			atomic_set(&ha->loop_state, LOOP_UP);
6146 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
6147 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
6148 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
6149 
6150 			rval = qla2x00_loop_resync(ha);
6151 		} else
6152 			atomic_set(&ha->loop_state, LOOP_DEAD);
6153 
6154 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
6155 	}
6156 
6157 	return rval;
6158 }
6159 
6160 void
6161 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
6162 {
6163 	fc_port_t *fcport;
6164 	struct scsi_qla_host *vha;
6165 	struct qla_hw_data *ha = base_vha->hw;
6166 	unsigned long flags;
6167 
6168 	spin_lock_irqsave(&ha->vport_slock, flags);
6169 	/* Go with deferred removal of rport references. */
6170 	list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
6171 		atomic_inc(&vha->vref_count);
6172 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6173 			if (fcport->drport &&
6174 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
6175 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6176 				qla2x00_rport_del(fcport);
6177 
6178 				spin_lock_irqsave(&ha->vport_slock, flags);
6179 			}
6180 		}
6181 		atomic_dec(&vha->vref_count);
6182 		wake_up(&vha->vref_waitq);
6183 	}
6184 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6185 }
6186 
6187 /* Assumes idc_lock always held on entry */
6188 void
6189 qla83xx_reset_ownership(scsi_qla_host_t *vha)
6190 {
6191 	struct qla_hw_data *ha = vha->hw;
6192 	uint32_t drv_presence, drv_presence_mask;
6193 	uint32_t dev_part_info1, dev_part_info2, class_type;
6194 	uint32_t class_type_mask = 0x3;
6195 	uint16_t fcoe_other_function = 0xffff, i;
6196 
6197 	if (IS_QLA8044(ha)) {
6198 		drv_presence = qla8044_rd_direct(vha,
6199 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
6200 		dev_part_info1 = qla8044_rd_direct(vha,
6201 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
6202 		dev_part_info2 = qla8044_rd_direct(vha,
6203 		    QLA8044_CRB_DEV_PART_INFO2);
6204 	} else {
6205 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6206 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
6207 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
6208 	}
6209 	for (i = 0; i < 8; i++) {
6210 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
6211 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6212 		    (i != ha->portnum)) {
6213 			fcoe_other_function = i;
6214 			break;
6215 		}
6216 	}
6217 	if (fcoe_other_function == 0xffff) {
6218 		for (i = 0; i < 8; i++) {
6219 			class_type = ((dev_part_info2 >> (i * 4)) &
6220 			    class_type_mask);
6221 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6222 			    ((i + 8) != ha->portnum)) {
6223 				fcoe_other_function = i + 8;
6224 				break;
6225 			}
6226 		}
6227 	}
6228 	/*
6229 	 * Prepare drv-presence mask based on fcoe functions present.
6230 	 * However consider only valid physical fcoe function numbers (0-15).
6231 	 */
6232 	drv_presence_mask = ~((1 << (ha->portnum)) |
6233 			((fcoe_other_function == 0xffff) ?
6234 			 0 : (1 << (fcoe_other_function))));
6235 
6236 	/* We are the reset owner iff:
6237 	 *    - No other protocol drivers present.
6238 	 *    - This is the lowest among fcoe functions. */
6239 	if (!(drv_presence & drv_presence_mask) &&
6240 			(ha->portnum < fcoe_other_function)) {
6241 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6242 		    "This host is Reset owner.\n");
6243 		ha->flags.nic_core_reset_owner = 1;
6244 	}
6245 }
6246 
6247 static int
6248 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6249 {
6250 	int rval = QLA_SUCCESS;
6251 	struct qla_hw_data *ha = vha->hw;
6252 	uint32_t drv_ack;
6253 
6254 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6255 	if (rval == QLA_SUCCESS) {
6256 		drv_ack |= (1 << ha->portnum);
6257 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6258 	}
6259 
6260 	return rval;
6261 }
6262 
6263 static int
6264 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6265 {
6266 	int rval = QLA_SUCCESS;
6267 	struct qla_hw_data *ha = vha->hw;
6268 	uint32_t drv_ack;
6269 
6270 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6271 	if (rval == QLA_SUCCESS) {
6272 		drv_ack &= ~(1 << ha->portnum);
6273 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6274 	}
6275 
6276 	return rval;
6277 }
6278 
6279 static const char *
6280 qla83xx_dev_state_to_string(uint32_t dev_state)
6281 {
6282 	switch (dev_state) {
6283 	case QLA8XXX_DEV_COLD:
6284 		return "COLD/RE-INIT";
6285 	case QLA8XXX_DEV_INITIALIZING:
6286 		return "INITIALIZING";
6287 	case QLA8XXX_DEV_READY:
6288 		return "READY";
6289 	case QLA8XXX_DEV_NEED_RESET:
6290 		return "NEED RESET";
6291 	case QLA8XXX_DEV_NEED_QUIESCENT:
6292 		return "NEED QUIESCENT";
6293 	case QLA8XXX_DEV_FAILED:
6294 		return "FAILED";
6295 	case QLA8XXX_DEV_QUIESCENT:
6296 		return "QUIESCENT";
6297 	default:
6298 		return "Unknown";
6299 	}
6300 }
6301 
6302 /* Assumes idc-lock always held on entry */
6303 void
6304 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6305 {
6306 	struct qla_hw_data *ha = vha->hw;
6307 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6308 
6309 	switch (audit_type) {
6310 	case IDC_AUDIT_TIMESTAMP:
6311 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6312 		idc_audit_reg = (ha->portnum) |
6313 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6314 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6315 		break;
6316 
6317 	case IDC_AUDIT_COMPLETION:
6318 		duration_secs = ((jiffies_to_msecs(jiffies) -
6319 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6320 		idc_audit_reg = (ha->portnum) |
6321 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6322 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6323 		break;
6324 
6325 	default:
6326 		ql_log(ql_log_warn, vha, 0xb078,
6327 		    "Invalid audit type specified.\n");
6328 		break;
6329 	}
6330 }
6331 
6332 /* Assumes idc_lock always held on entry */
6333 static int
6334 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6335 {
6336 	struct qla_hw_data *ha = vha->hw;
6337 	uint32_t  idc_control, dev_state;
6338 
6339 	__qla83xx_get_idc_control(vha, &idc_control);
6340 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6341 		ql_log(ql_log_info, vha, 0xb080,
6342 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6343 		    idc_control);
6344 		return QLA_FUNCTION_FAILED;
6345 	}
6346 
6347 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6348 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6349 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6350 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6351 		    QLA8XXX_DEV_NEED_RESET);
6352 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6353 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6354 	} else {
6355 		const char *state = qla83xx_dev_state_to_string(dev_state);
6356 
6357 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
6358 
6359 		/* SV: XXX: Is timeout required here? */
6360 		/* Wait for IDC state change READY -> NEED_RESET */
6361 		while (dev_state == QLA8XXX_DEV_READY) {
6362 			qla83xx_idc_unlock(vha, 0);
6363 			msleep(200);
6364 			qla83xx_idc_lock(vha, 0);
6365 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6366 		}
6367 	}
6368 
6369 	/* Send IDC ack by writing to drv-ack register */
6370 	__qla83xx_set_drv_ack(vha);
6371 
6372 	return QLA_SUCCESS;
6373 }
6374 
6375 int
6376 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6377 {
6378 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6379 }
6380 
6381 int
6382 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6383 {
6384 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6385 }
6386 
6387 static int
6388 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6389 {
6390 	uint32_t drv_presence = 0;
6391 	struct qla_hw_data *ha = vha->hw;
6392 
6393 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6394 	if (drv_presence & (1 << ha->portnum))
6395 		return QLA_SUCCESS;
6396 	else
6397 		return QLA_TEST_FAILED;
6398 }
6399 
6400 int
6401 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6402 {
6403 	int rval = QLA_SUCCESS;
6404 	struct qla_hw_data *ha = vha->hw;
6405 
6406 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6407 	    "Entered  %s().\n", __func__);
6408 
6409 	if (vha->device_flags & DFLG_DEV_FAILED) {
6410 		ql_log(ql_log_warn, vha, 0xb059,
6411 		    "Device in unrecoverable FAILED state.\n");
6412 		return QLA_FUNCTION_FAILED;
6413 	}
6414 
6415 	qla83xx_idc_lock(vha, 0);
6416 
6417 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6418 		ql_log(ql_log_warn, vha, 0xb05a,
6419 		    "Function=0x%x has been removed from IDC participation.\n",
6420 		    ha->portnum);
6421 		rval = QLA_FUNCTION_FAILED;
6422 		goto exit;
6423 	}
6424 
6425 	qla83xx_reset_ownership(vha);
6426 
6427 	rval = qla83xx_initiating_reset(vha);
6428 
6429 	/*
6430 	 * Perform reset if we are the reset-owner,
6431 	 * else wait till IDC state changes to READY/FAILED.
6432 	 */
6433 	if (rval == QLA_SUCCESS) {
6434 		rval = qla83xx_idc_state_handler(vha);
6435 
6436 		if (rval == QLA_SUCCESS)
6437 			ha->flags.nic_core_hung = 0;
6438 		__qla83xx_clear_drv_ack(vha);
6439 	}
6440 
6441 exit:
6442 	qla83xx_idc_unlock(vha, 0);
6443 
6444 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6445 
6446 	return rval;
6447 }
6448 
6449 int
6450 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6451 {
6452 	struct qla_hw_data *ha = vha->hw;
6453 	int rval = QLA_FUNCTION_FAILED;
6454 
6455 	if (!IS_MCTP_CAPABLE(ha)) {
6456 		/* This message can be removed from the final version */
6457 		ql_log(ql_log_info, vha, 0x506d,
6458 		    "This board is not MCTP capable\n");
6459 		return rval;
6460 	}
6461 
6462 	if (!ha->mctp_dump) {
6463 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6464 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6465 
6466 		if (!ha->mctp_dump) {
6467 			ql_log(ql_log_warn, vha, 0x506e,
6468 			    "Failed to allocate memory for mctp dump\n");
6469 			return rval;
6470 		}
6471 	}
6472 
6473 #define MCTP_DUMP_STR_ADDR	0x00000000
6474 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
6475 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
6476 	if (rval != QLA_SUCCESS) {
6477 		ql_log(ql_log_warn, vha, 0x506f,
6478 		    "Failed to capture mctp dump\n");
6479 	} else {
6480 		ql_log(ql_log_info, vha, 0x5070,
6481 		    "Mctp dump capture for host (%ld/%p).\n",
6482 		    vha->host_no, ha->mctp_dump);
6483 		ha->mctp_dumped = 1;
6484 	}
6485 
6486 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
6487 		ha->flags.nic_core_reset_hdlr_active = 1;
6488 		rval = qla83xx_restart_nic_firmware(vha);
6489 		if (rval)
6490 			/* NIC Core reset failed. */
6491 			ql_log(ql_log_warn, vha, 0x5071,
6492 			    "Failed to restart nic firmware\n");
6493 		else
6494 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
6495 			    "Restarted NIC firmware successfully.\n");
6496 		ha->flags.nic_core_reset_hdlr_active = 0;
6497 	}
6498 
6499 	return rval;
6500 
6501 }
6502 
6503 /*
6504 * qla2x00_quiesce_io
6505 * Description: This function will block the new I/Os
6506 *              Its not aborting any I/Os as context
6507 *              is not destroyed during quiescence
6508 * Arguments: scsi_qla_host_t
6509 * return   : void
6510 */
6511 void
6512 qla2x00_quiesce_io(scsi_qla_host_t *vha)
6513 {
6514 	struct qla_hw_data *ha = vha->hw;
6515 	struct scsi_qla_host *vp;
6516 
6517 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
6518 	    "Quiescing I/O - ha=%p.\n", ha);
6519 
6520 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
6521 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6522 		atomic_set(&vha->loop_state, LOOP_DOWN);
6523 		qla2x00_mark_all_devices_lost(vha, 0);
6524 		list_for_each_entry(vp, &ha->vp_list, list)
6525 			qla2x00_mark_all_devices_lost(vp, 0);
6526 	} else {
6527 		if (!atomic_read(&vha->loop_down_timer))
6528 			atomic_set(&vha->loop_down_timer,
6529 					LOOP_DOWN_TIME);
6530 	}
6531 	/* Wait for pending cmds to complete */
6532 	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
6533 		     != QLA_SUCCESS);
6534 }
6535 
6536 void
6537 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
6538 {
6539 	struct qla_hw_data *ha = vha->hw;
6540 	struct scsi_qla_host *vp;
6541 	unsigned long flags;
6542 	fc_port_t *fcport;
6543 	u16 i;
6544 
6545 	/* For ISP82XX, driver waits for completion of the commands.
6546 	 * online flag should be set.
6547 	 */
6548 	if (!(IS_P3P_TYPE(ha)))
6549 		vha->flags.online = 0;
6550 	ha->flags.chip_reset_done = 0;
6551 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6552 	vha->qla_stats.total_isp_aborts++;
6553 
6554 	ql_log(ql_log_info, vha, 0x00af,
6555 	    "Performing ISP error recovery - ha=%p.\n", ha);
6556 
6557 	ha->flags.purge_mbox = 1;
6558 	/* For ISP82XX, reset_chip is just disabling interrupts.
6559 	 * Driver waits for the completion of the commands.
6560 	 * the interrupts need to be enabled.
6561 	 */
6562 	if (!(IS_P3P_TYPE(ha)))
6563 		ha->isp_ops->reset_chip(vha);
6564 
6565 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
6566 	SAVE_TOPO(ha);
6567 	ha->flags.rida_fmt2 = 0;
6568 	ha->flags.n2n_ae = 0;
6569 	ha->flags.lip_ae = 0;
6570 	ha->current_topology = 0;
6571 	ha->flags.fw_started = 0;
6572 	ha->flags.fw_init_done = 0;
6573 	ha->chip_reset++;
6574 	ha->base_qpair->chip_reset = ha->chip_reset;
6575 	for (i = 0; i < ha->max_qpairs; i++) {
6576 		if (ha->queue_pair_map[i])
6577 			ha->queue_pair_map[i]->chip_reset =
6578 				ha->base_qpair->chip_reset;
6579 	}
6580 
6581 	/* purge MBox commands */
6582 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
6583 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
6584 		complete(&ha->mbx_intr_comp);
6585 	}
6586 
6587 	i = 0;
6588 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
6589 	    atomic_read(&ha->num_pend_mbx_stage2) ||
6590 	    atomic_read(&ha->num_pend_mbx_stage1)) {
6591 		msleep(20);
6592 		i++;
6593 		if (i > 50)
6594 			break;
6595 	}
6596 	ha->flags.purge_mbox = 0;
6597 
6598 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
6599 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6600 		atomic_set(&vha->loop_state, LOOP_DOWN);
6601 		qla2x00_mark_all_devices_lost(vha, 0);
6602 
6603 		spin_lock_irqsave(&ha->vport_slock, flags);
6604 		list_for_each_entry(vp, &ha->vp_list, list) {
6605 			atomic_inc(&vp->vref_count);
6606 			spin_unlock_irqrestore(&ha->vport_slock, flags);
6607 
6608 			qla2x00_mark_all_devices_lost(vp, 0);
6609 
6610 			spin_lock_irqsave(&ha->vport_slock, flags);
6611 			atomic_dec(&vp->vref_count);
6612 		}
6613 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6614 	} else {
6615 		if (!atomic_read(&vha->loop_down_timer))
6616 			atomic_set(&vha->loop_down_timer,
6617 			    LOOP_DOWN_TIME);
6618 	}
6619 
6620 	/* Clear all async request states across all VPs. */
6621 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6622 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6623 		fcport->scan_state = 0;
6624 	}
6625 	spin_lock_irqsave(&ha->vport_slock, flags);
6626 	list_for_each_entry(vp, &ha->vp_list, list) {
6627 		atomic_inc(&vp->vref_count);
6628 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6629 
6630 		list_for_each_entry(fcport, &vp->vp_fcports, list)
6631 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6632 
6633 		spin_lock_irqsave(&ha->vport_slock, flags);
6634 		atomic_dec(&vp->vref_count);
6635 	}
6636 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6637 
6638 	if (!ha->flags.eeh_busy) {
6639 		/* Make sure for ISP 82XX IO DMA is complete */
6640 		if (IS_P3P_TYPE(ha)) {
6641 			qla82xx_chip_reset_cleanup(vha);
6642 			ql_log(ql_log_info, vha, 0x00b4,
6643 			    "Done chip reset cleanup.\n");
6644 
6645 			/* Done waiting for pending commands.
6646 			 * Reset the online flag.
6647 			 */
6648 			vha->flags.online = 0;
6649 		}
6650 
6651 		/* Requeue all commands in outstanding command list. */
6652 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
6653 	}
6654 	/* memory barrier */
6655 	wmb();
6656 }
6657 
6658 /*
6659 *  qla2x00_abort_isp
6660 *      Resets ISP and aborts all outstanding commands.
6661 *
6662 * Input:
6663 *      ha           = adapter block pointer.
6664 *
6665 * Returns:
6666 *      0 = success
6667 */
6668 int
6669 qla2x00_abort_isp(scsi_qla_host_t *vha)
6670 {
6671 	int rval;
6672 	uint8_t        status = 0;
6673 	struct qla_hw_data *ha = vha->hw;
6674 	struct scsi_qla_host *vp;
6675 	struct req_que *req = ha->req_q_map[0];
6676 	unsigned long flags;
6677 
6678 	if (vha->flags.online) {
6679 		qla2x00_abort_isp_cleanup(vha);
6680 
6681 		if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
6682 			ha->flags.chip_reset_done = 1;
6683 			vha->flags.online = 1;
6684 			status = 0;
6685 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6686 			return status;
6687 		}
6688 
6689 		if (IS_QLA8031(ha)) {
6690 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
6691 			    "Clearing fcoe driver presence.\n");
6692 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
6693 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
6694 				    "Error while clearing DRV-Presence.\n");
6695 		}
6696 
6697 		if (unlikely(pci_channel_offline(ha->pdev) &&
6698 		    ha->flags.pci_channel_io_perm_failure)) {
6699 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6700 			status = 0;
6701 			return status;
6702 		}
6703 
6704 		switch (vha->qlini_mode) {
6705 		case QLA2XXX_INI_MODE_DISABLED:
6706 			if (!qla_tgt_mode_enabled(vha))
6707 				return 0;
6708 			break;
6709 		case QLA2XXX_INI_MODE_DUAL:
6710 			if (!qla_dual_mode_enabled(vha))
6711 				return 0;
6712 			break;
6713 		case QLA2XXX_INI_MODE_ENABLED:
6714 		default:
6715 			break;
6716 		}
6717 
6718 		ha->isp_ops->get_flash_version(vha, req->ring);
6719 
6720 		ha->isp_ops->nvram_config(vha);
6721 
6722 		if (!qla2x00_restart_isp(vha)) {
6723 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6724 
6725 			if (!atomic_read(&vha->loop_down_timer)) {
6726 				/*
6727 				 * Issue marker command only when we are going
6728 				 * to start the I/O .
6729 				 */
6730 				vha->marker_needed = 1;
6731 			}
6732 
6733 			vha->flags.online = 1;
6734 
6735 			ha->isp_ops->enable_intrs(ha);
6736 
6737 			ha->isp_abort_cnt = 0;
6738 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6739 
6740 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
6741 				qla2x00_get_fw_version(vha);
6742 			if (ha->fce) {
6743 				ha->flags.fce_enabled = 1;
6744 				memset(ha->fce, 0,
6745 				    fce_calc_size(ha->fce_bufs));
6746 				rval = qla2x00_enable_fce_trace(vha,
6747 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
6748 				    &ha->fce_bufs);
6749 				if (rval) {
6750 					ql_log(ql_log_warn, vha, 0x8033,
6751 					    "Unable to reinitialize FCE "
6752 					    "(%d).\n", rval);
6753 					ha->flags.fce_enabled = 0;
6754 				}
6755 			}
6756 
6757 			if (ha->eft) {
6758 				memset(ha->eft, 0, EFT_SIZE);
6759 				rval = qla2x00_enable_eft_trace(vha,
6760 				    ha->eft_dma, EFT_NUM_BUFFERS);
6761 				if (rval) {
6762 					ql_log(ql_log_warn, vha, 0x8034,
6763 					    "Unable to reinitialize EFT "
6764 					    "(%d).\n", rval);
6765 				}
6766 			}
6767 		} else {	/* failed the ISP abort */
6768 			vha->flags.online = 1;
6769 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
6770 				if (ha->isp_abort_cnt == 0) {
6771 					ql_log(ql_log_fatal, vha, 0x8035,
6772 					    "ISP error recover failed - "
6773 					    "board disabled.\n");
6774 					/*
6775 					 * The next call disables the board
6776 					 * completely.
6777 					 */
6778 					qla2x00_abort_isp_cleanup(vha);
6779 					vha->flags.online = 0;
6780 					clear_bit(ISP_ABORT_RETRY,
6781 					    &vha->dpc_flags);
6782 					status = 0;
6783 				} else { /* schedule another ISP abort */
6784 					ha->isp_abort_cnt--;
6785 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
6786 					    "ISP abort - retry remaining %d.\n",
6787 					    ha->isp_abort_cnt);
6788 					status = 1;
6789 				}
6790 			} else {
6791 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
6792 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
6793 				    "ISP error recovery - retrying (%d) "
6794 				    "more times.\n", ha->isp_abort_cnt);
6795 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6796 				status = 1;
6797 			}
6798 		}
6799 
6800 	}
6801 
6802 	if (!status) {
6803 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
6804 		qla2x00_configure_hba(vha);
6805 		spin_lock_irqsave(&ha->vport_slock, flags);
6806 		list_for_each_entry(vp, &ha->vp_list, list) {
6807 			if (vp->vp_idx) {
6808 				atomic_inc(&vp->vref_count);
6809 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6810 
6811 				qla2x00_vp_abort_isp(vp);
6812 
6813 				spin_lock_irqsave(&ha->vport_slock, flags);
6814 				atomic_dec(&vp->vref_count);
6815 			}
6816 		}
6817 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6818 
6819 		if (IS_QLA8031(ha)) {
6820 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
6821 			    "Setting back fcoe driver presence.\n");
6822 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
6823 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
6824 				    "Error while setting DRV-Presence.\n");
6825 		}
6826 	} else {
6827 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
6828 		       __func__);
6829 	}
6830 
6831 	return(status);
6832 }
6833 
6834 /*
6835 *  qla2x00_restart_isp
6836 *      restarts the ISP after a reset
6837 *
6838 * Input:
6839 *      ha = adapter block pointer.
6840 *
6841 * Returns:
6842 *      0 = success
6843 */
6844 static int
6845 qla2x00_restart_isp(scsi_qla_host_t *vha)
6846 {
6847 	int status = 0;
6848 	struct qla_hw_data *ha = vha->hw;
6849 
6850 	/* If firmware needs to be loaded */
6851 	if (qla2x00_isp_firmware(vha)) {
6852 		vha->flags.online = 0;
6853 		status = ha->isp_ops->chip_diag(vha);
6854 		if (!status)
6855 			status = qla2x00_setup_chip(vha);
6856 	}
6857 
6858 	if (!status && !(status = qla2x00_init_rings(vha))) {
6859 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6860 		ha->flags.chip_reset_done = 1;
6861 
6862 		/* Initialize the queues in use */
6863 		qla25xx_init_queues(ha);
6864 
6865 		status = qla2x00_fw_ready(vha);
6866 		if (!status) {
6867 			/* Issue a marker after FW becomes ready. */
6868 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
6869 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6870 		}
6871 
6872 		/* if no cable then assume it's good */
6873 		if ((vha->device_flags & DFLG_NO_CABLE))
6874 			status = 0;
6875 	}
6876 	return (status);
6877 }
6878 
6879 static int
6880 qla25xx_init_queues(struct qla_hw_data *ha)
6881 {
6882 	struct rsp_que *rsp = NULL;
6883 	struct req_que *req = NULL;
6884 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
6885 	int ret = -1;
6886 	int i;
6887 
6888 	for (i = 1; i < ha->max_rsp_queues; i++) {
6889 		rsp = ha->rsp_q_map[i];
6890 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
6891 			rsp->options &= ~BIT_0;
6892 			ret = qla25xx_init_rsp_que(base_vha, rsp);
6893 			if (ret != QLA_SUCCESS)
6894 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
6895 				    "%s Rsp que: %d init failed.\n",
6896 				    __func__, rsp->id);
6897 			else
6898 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
6899 				    "%s Rsp que: %d inited.\n",
6900 				    __func__, rsp->id);
6901 		}
6902 	}
6903 	for (i = 1; i < ha->max_req_queues; i++) {
6904 		req = ha->req_q_map[i];
6905 		if (req && test_bit(i, ha->req_qid_map)) {
6906 			/* Clear outstanding commands array. */
6907 			req->options &= ~BIT_0;
6908 			ret = qla25xx_init_req_que(base_vha, req);
6909 			if (ret != QLA_SUCCESS)
6910 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
6911 				    "%s Req que: %d init failed.\n",
6912 				    __func__, req->id);
6913 			else
6914 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
6915 				    "%s Req que: %d inited.\n",
6916 				    __func__, req->id);
6917 		}
6918 	}
6919 	return ret;
6920 }
6921 
6922 /*
6923 * qla2x00_reset_adapter
6924 *      Reset adapter.
6925 *
6926 * Input:
6927 *      ha = adapter block pointer.
6928 */
6929 int
6930 qla2x00_reset_adapter(scsi_qla_host_t *vha)
6931 {
6932 	unsigned long flags = 0;
6933 	struct qla_hw_data *ha = vha->hw;
6934 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
6935 
6936 	vha->flags.online = 0;
6937 	ha->isp_ops->disable_intrs(ha);
6938 
6939 	spin_lock_irqsave(&ha->hardware_lock, flags);
6940 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
6941 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
6942 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
6943 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
6944 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
6945 
6946 	return QLA_SUCCESS;
6947 }
6948 
6949 int
6950 qla24xx_reset_adapter(scsi_qla_host_t *vha)
6951 {
6952 	unsigned long flags = 0;
6953 	struct qla_hw_data *ha = vha->hw;
6954 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
6955 	int rval = QLA_SUCCESS;
6956 
6957 	if (IS_P3P_TYPE(ha))
6958 		return rval;
6959 
6960 	vha->flags.online = 0;
6961 	ha->isp_ops->disable_intrs(ha);
6962 
6963 	spin_lock_irqsave(&ha->hardware_lock, flags);
6964 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
6965 	RD_REG_DWORD(&reg->hccr);
6966 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
6967 	RD_REG_DWORD(&reg->hccr);
6968 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
6969 
6970 	if (IS_NOPOLLING_TYPE(ha))
6971 		ha->isp_ops->enable_intrs(ha);
6972 
6973 	return rval;
6974 }
6975 
6976 /* On sparc systems, obtain port and node WWN from firmware
6977  * properties.
6978  */
6979 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
6980 	struct nvram_24xx *nv)
6981 {
6982 #ifdef CONFIG_SPARC
6983 	struct qla_hw_data *ha = vha->hw;
6984 	struct pci_dev *pdev = ha->pdev;
6985 	struct device_node *dp = pci_device_to_OF_node(pdev);
6986 	const u8 *val;
6987 	int len;
6988 
6989 	val = of_get_property(dp, "port-wwn", &len);
6990 	if (val && len >= WWN_SIZE)
6991 		memcpy(nv->port_name, val, WWN_SIZE);
6992 
6993 	val = of_get_property(dp, "node-wwn", &len);
6994 	if (val && len >= WWN_SIZE)
6995 		memcpy(nv->node_name, val, WWN_SIZE);
6996 #endif
6997 }
6998 
6999 int
7000 qla24xx_nvram_config(scsi_qla_host_t *vha)
7001 {
7002 	int   rval;
7003 	struct init_cb_24xx *icb;
7004 	struct nvram_24xx *nv;
7005 	uint32_t *dptr;
7006 	uint8_t  *dptr1, *dptr2;
7007 	uint32_t chksum;
7008 	uint16_t cnt;
7009 	struct qla_hw_data *ha = vha->hw;
7010 
7011 	rval = QLA_SUCCESS;
7012 	icb = (struct init_cb_24xx *)ha->init_cb;
7013 	nv = ha->nvram;
7014 
7015 	/* Determine NVRAM starting address. */
7016 	if (ha->port_no == 0) {
7017 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
7018 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
7019 	} else {
7020 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
7021 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
7022 	}
7023 
7024 	ha->nvram_size = sizeof(*nv);
7025 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7026 
7027 	/* Get VPD data into cache */
7028 	ha->vpd = ha->nvram + VPD_OFFSET;
7029 	ha->isp_ops->read_nvram(vha, ha->vpd,
7030 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
7031 
7032 	/* Get NVRAM data into cache and calculate checksum. */
7033 	dptr = (uint32_t *)nv;
7034 	ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
7035 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7036 		chksum += le32_to_cpu(*dptr);
7037 
7038 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
7039 	    "Contents of NVRAM\n");
7040 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
7041 	    nv, ha->nvram_size);
7042 
7043 	/* Bad NVRAM data, set defaults parameters. */
7044 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
7045 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
7046 		/* Reset NVRAM data. */
7047 		ql_log(ql_log_warn, vha, 0x006b,
7048 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
7049 		    chksum, nv->id, nv->nvram_version);
7050 		ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
7051 		ql_log(ql_log_warn, vha, 0x006c,
7052 		    "Falling back to functioning (yet invalid -- WWPN) "
7053 		    "defaults.\n");
7054 
7055 		/*
7056 		 * Set default initialization control block.
7057 		 */
7058 		memset(nv, 0, ha->nvram_size);
7059 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7060 		nv->version = cpu_to_le16(ICB_VERSION);
7061 		nv->frame_payload_size = 2048;
7062 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7063 		nv->exchange_count = cpu_to_le16(0);
7064 		nv->hard_address = cpu_to_le16(124);
7065 		nv->port_name[0] = 0x21;
7066 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7067 		nv->port_name[2] = 0x00;
7068 		nv->port_name[3] = 0xe0;
7069 		nv->port_name[4] = 0x8b;
7070 		nv->port_name[5] = 0x1c;
7071 		nv->port_name[6] = 0x55;
7072 		nv->port_name[7] = 0x86;
7073 		nv->node_name[0] = 0x20;
7074 		nv->node_name[1] = 0x00;
7075 		nv->node_name[2] = 0x00;
7076 		nv->node_name[3] = 0xe0;
7077 		nv->node_name[4] = 0x8b;
7078 		nv->node_name[5] = 0x1c;
7079 		nv->node_name[6] = 0x55;
7080 		nv->node_name[7] = 0x86;
7081 		qla24xx_nvram_wwn_from_ofw(vha, nv);
7082 		nv->login_retry_count = cpu_to_le16(8);
7083 		nv->interrupt_delay_timer = cpu_to_le16(0);
7084 		nv->login_timeout = cpu_to_le16(0);
7085 		nv->firmware_options_1 =
7086 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7087 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7088 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7089 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7090 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7091 		nv->efi_parameters = cpu_to_le32(0);
7092 		nv->reset_delay = 5;
7093 		nv->max_luns_per_target = cpu_to_le16(128);
7094 		nv->port_down_retry_count = cpu_to_le16(30);
7095 		nv->link_down_timeout = cpu_to_le16(30);
7096 
7097 		rval = 1;
7098 	}
7099 
7100 	if (qla_tgt_mode_enabled(vha)) {
7101 		/* Don't enable full login after initial LIP */
7102 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7103 		/* Don't enable LIP full login for initiator */
7104 		nv->host_p &= cpu_to_le32(~BIT_10);
7105 	}
7106 
7107 	qlt_24xx_config_nvram_stage1(vha, nv);
7108 
7109 	/* Reset Initialization control block */
7110 	memset(icb, 0, ha->init_cb_size);
7111 
7112 	/* Copy 1st segment. */
7113 	dptr1 = (uint8_t *)icb;
7114 	dptr2 = (uint8_t *)&nv->version;
7115 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7116 	while (cnt--)
7117 		*dptr1++ = *dptr2++;
7118 
7119 	icb->login_retry_count = nv->login_retry_count;
7120 	icb->link_down_on_nos = nv->link_down_on_nos;
7121 
7122 	/* Copy 2nd segment. */
7123 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7124 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7125 	cnt = (uint8_t *)&icb->reserved_3 -
7126 	    (uint8_t *)&icb->interrupt_delay_timer;
7127 	while (cnt--)
7128 		*dptr1++ = *dptr2++;
7129 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
7130 	/*
7131 	 * Setup driver NVRAM options.
7132 	 */
7133 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7134 	    "QLA2462");
7135 
7136 	qlt_24xx_config_nvram_stage2(vha, icb);
7137 
7138 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7139 		/* Use alternate WWN? */
7140 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7141 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7142 	}
7143 
7144 	/* Prepare nodename */
7145 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7146 		/*
7147 		 * Firmware will apply the following mask if the nodename was
7148 		 * not provided.
7149 		 */
7150 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7151 		icb->node_name[0] &= 0xF0;
7152 	}
7153 
7154 	/* Set host adapter parameters. */
7155 	ha->flags.disable_risc_code_load = 0;
7156 	ha->flags.enable_lip_reset = 0;
7157 	ha->flags.enable_lip_full_login =
7158 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
7159 	ha->flags.enable_target_reset =
7160 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
7161 	ha->flags.enable_led_scheme = 0;
7162 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
7163 
7164 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7165 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7166 
7167 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
7168 	    sizeof(ha->fw_seriallink_options24));
7169 
7170 	/* save HBA serial number */
7171 	ha->serial0 = icb->port_name[5];
7172 	ha->serial1 = icb->port_name[6];
7173 	ha->serial2 = icb->port_name[7];
7174 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7175 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7176 
7177 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7178 
7179 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7180 
7181 	/* Set minimum login_timeout to 4 seconds. */
7182 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7183 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7184 	if (le16_to_cpu(nv->login_timeout) < 4)
7185 		nv->login_timeout = cpu_to_le16(4);
7186 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7187 
7188 	/* Set minimum RATOV to 100 tenths of a second. */
7189 	ha->r_a_tov = 100;
7190 
7191 	ha->loop_reset_delay = nv->reset_delay;
7192 
7193 	/* Link Down Timeout = 0:
7194 	 *
7195 	 * 	When Port Down timer expires we will start returning
7196 	 *	I/O's to OS with "DID_NO_CONNECT".
7197 	 *
7198 	 * Link Down Timeout != 0:
7199 	 *
7200 	 *	 The driver waits for the link to come up after link down
7201 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7202 	 */
7203 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7204 		ha->loop_down_abort_time =
7205 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7206 	} else {
7207 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7208 		ha->loop_down_abort_time =
7209 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7210 	}
7211 
7212 	/* Need enough time to try and get the port back. */
7213 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7214 	if (qlport_down_retry)
7215 		ha->port_down_retry_count = qlport_down_retry;
7216 
7217 	/* Set login_retry_count */
7218 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7219 	if (ha->port_down_retry_count ==
7220 	    le16_to_cpu(nv->port_down_retry_count) &&
7221 	    ha->port_down_retry_count > 3)
7222 		ha->login_retry_count = ha->port_down_retry_count;
7223 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
7224 		ha->login_retry_count = ha->port_down_retry_count;
7225 	if (ql2xloginretrycount)
7226 		ha->login_retry_count = ql2xloginretrycount;
7227 
7228 	/* N2N: driver will initiate Login instead of FW */
7229 	icb->firmware_options_3 |= BIT_8;
7230 
7231 	/* Enable ZIO. */
7232 	if (!vha->flags.init_done) {
7233 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
7234 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
7235 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
7236 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
7237 	}
7238 	icb->firmware_options_2 &= cpu_to_le32(
7239 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
7240 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
7241 		ha->zio_mode = QLA_ZIO_MODE_6;
7242 
7243 		ql_log(ql_log_info, vha, 0x006f,
7244 		    "ZIO mode %d enabled; timer delay (%d us).\n",
7245 		    ha->zio_mode, ha->zio_timer * 100);
7246 
7247 		icb->firmware_options_2 |= cpu_to_le32(
7248 		    (uint32_t)ha->zio_mode);
7249 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
7250 	}
7251 
7252 	if (rval) {
7253 		ql_log(ql_log_warn, vha, 0x0070,
7254 		    "NVRAM configuration failed.\n");
7255 	}
7256 	return (rval);
7257 }
7258 
7259 static void
7260 qla27xx_print_image(struct scsi_qla_host *vha, char *name,
7261     struct qla27xx_image_status *image_status)
7262 {
7263 	ql_dbg(ql_dbg_init, vha, 0x018b,
7264 	    "%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
7265 	    name, "status",
7266 	    image_status->image_status_mask,
7267 	    le16_to_cpu(image_status->generation),
7268 	    image_status->ver_major,
7269 	    image_status->ver_minor,
7270 	    image_status->bitmap,
7271 	    le32_to_cpu(image_status->checksum),
7272 	    le32_to_cpu(image_status->signature));
7273 }
7274 
7275 static bool
7276 qla28xx_check_aux_image_status_signature(
7277     struct qla27xx_image_status *image_status)
7278 {
7279 	ulong signature = le32_to_cpu(image_status->signature);
7280 
7281 	return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
7282 }
7283 
7284 static bool
7285 qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
7286 {
7287 	ulong signature = le32_to_cpu(image_status->signature);
7288 
7289 	return
7290 	    signature != QLA27XX_IMG_STATUS_SIGN &&
7291 	    signature != QLA28XX_IMG_STATUS_SIGN;
7292 }
7293 
7294 static ulong
7295 qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
7296 {
7297 	uint32_t *p = (void *)image_status;
7298 	uint n = sizeof(*image_status) / sizeof(*p);
7299 	uint32_t sum = 0;
7300 
7301 	for ( ; n--; p++)
7302 		sum += le32_to_cpup(p);
7303 
7304 	return sum;
7305 }
7306 
7307 static inline uint
7308 qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
7309 {
7310 	return aux->bitmap & bitmask ?
7311 	    QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
7312 }
7313 
7314 static void
7315 qla28xx_component_status(
7316     struct active_regions *active_regions, struct qla27xx_image_status *aux)
7317 {
7318 	active_regions->aux.board_config =
7319 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
7320 
7321 	active_regions->aux.vpd_nvram =
7322 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
7323 
7324 	active_regions->aux.npiv_config_0_1 =
7325 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
7326 
7327 	active_regions->aux.npiv_config_2_3 =
7328 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
7329 }
7330 
7331 static int
7332 qla27xx_compare_image_generation(
7333     struct qla27xx_image_status *pri_image_status,
7334     struct qla27xx_image_status *sec_image_status)
7335 {
7336 	/* calculate generation delta as uint16 (this accounts for wrap) */
7337 	int16_t delta =
7338 	    le16_to_cpu(pri_image_status->generation) -
7339 	    le16_to_cpu(sec_image_status->generation);
7340 
7341 	ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
7342 
7343 	return delta;
7344 }
7345 
7346 void
7347 qla28xx_get_aux_images(
7348 	struct scsi_qla_host *vha, struct active_regions *active_regions)
7349 {
7350 	struct qla_hw_data *ha = vha->hw;
7351 	struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
7352 	bool valid_pri_image = false, valid_sec_image = false;
7353 	bool active_pri_image = false, active_sec_image = false;
7354 
7355 	if (!ha->flt_region_aux_img_status_pri) {
7356 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
7357 		goto check_sec_image;
7358 	}
7359 
7360 	qla24xx_read_flash_data(vha, (void *)&pri_aux_image_status,
7361 	    ha->flt_region_aux_img_status_pri,
7362 	    sizeof(pri_aux_image_status) >> 2);
7363 	qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
7364 
7365 	if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
7366 		ql_dbg(ql_dbg_init, vha, 0x018b,
7367 		    "Primary aux image signature (%#x) not valid\n",
7368 		    le32_to_cpu(pri_aux_image_status.signature));
7369 		goto check_sec_image;
7370 	}
7371 
7372 	if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
7373 		ql_dbg(ql_dbg_init, vha, 0x018c,
7374 		    "Primary aux image checksum failed\n");
7375 		goto check_sec_image;
7376 	}
7377 
7378 	valid_pri_image = true;
7379 
7380 	if (pri_aux_image_status.image_status_mask & 1) {
7381 		ql_dbg(ql_dbg_init, vha, 0x018d,
7382 		    "Primary aux image is active\n");
7383 		active_pri_image = true;
7384 	}
7385 
7386 check_sec_image:
7387 	if (!ha->flt_region_aux_img_status_sec) {
7388 		ql_dbg(ql_dbg_init, vha, 0x018a,
7389 		    "Secondary aux image not addressed\n");
7390 		goto check_valid_image;
7391 	}
7392 
7393 	qla24xx_read_flash_data(vha, (void *)&sec_aux_image_status,
7394 	    ha->flt_region_aux_img_status_sec,
7395 	    sizeof(sec_aux_image_status) >> 2);
7396 	qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
7397 
7398 	if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
7399 		ql_dbg(ql_dbg_init, vha, 0x018b,
7400 		    "Secondary aux image signature (%#x) not valid\n",
7401 		    le32_to_cpu(sec_aux_image_status.signature));
7402 		goto check_valid_image;
7403 	}
7404 
7405 	if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
7406 		ql_dbg(ql_dbg_init, vha, 0x018c,
7407 		    "Secondary aux image checksum failed\n");
7408 		goto check_valid_image;
7409 	}
7410 
7411 	valid_sec_image = true;
7412 
7413 	if (sec_aux_image_status.image_status_mask & 1) {
7414 		ql_dbg(ql_dbg_init, vha, 0x018d,
7415 		    "Secondary aux image is active\n");
7416 		active_sec_image = true;
7417 	}
7418 
7419 check_valid_image:
7420 	if (valid_pri_image && active_pri_image &&
7421 	    valid_sec_image && active_sec_image) {
7422 		if (qla27xx_compare_image_generation(&pri_aux_image_status,
7423 		    &sec_aux_image_status) >= 0) {
7424 			qla28xx_component_status(active_regions,
7425 			    &pri_aux_image_status);
7426 		} else {
7427 			qla28xx_component_status(active_regions,
7428 			    &sec_aux_image_status);
7429 		}
7430 	} else if (valid_pri_image && active_pri_image) {
7431 		qla28xx_component_status(active_regions, &pri_aux_image_status);
7432 	} else if (valid_sec_image && active_sec_image) {
7433 		qla28xx_component_status(active_regions, &sec_aux_image_status);
7434 	}
7435 
7436 	ql_dbg(ql_dbg_init, vha, 0x018f,
7437 	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u\n",
7438 	    active_regions->aux.board_config,
7439 	    active_regions->aux.vpd_nvram,
7440 	    active_regions->aux.npiv_config_0_1,
7441 	    active_regions->aux.npiv_config_2_3);
7442 }
7443 
7444 void
7445 qla27xx_get_active_image(struct scsi_qla_host *vha,
7446     struct active_regions *active_regions)
7447 {
7448 	struct qla_hw_data *ha = vha->hw;
7449 	struct qla27xx_image_status pri_image_status, sec_image_status;
7450 	bool valid_pri_image = false, valid_sec_image = false;
7451 	bool active_pri_image = false, active_sec_image = false;
7452 
7453 	if (!ha->flt_region_img_status_pri) {
7454 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
7455 		goto check_sec_image;
7456 	}
7457 
7458 	if (qla24xx_read_flash_data(vha, (void *)(&pri_image_status),
7459 	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
7460 	    QLA_SUCCESS) {
7461 		WARN_ON_ONCE(true);
7462 		goto check_sec_image;
7463 	}
7464 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
7465 
7466 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
7467 		ql_dbg(ql_dbg_init, vha, 0x018b,
7468 		    "Primary image signature (%#x) not valid\n",
7469 		    le32_to_cpu(pri_image_status.signature));
7470 		goto check_sec_image;
7471 	}
7472 
7473 	if (qla27xx_image_status_checksum(&pri_image_status)) {
7474 		ql_dbg(ql_dbg_init, vha, 0x018c,
7475 		    "Primary image checksum failed\n");
7476 		goto check_sec_image;
7477 	}
7478 
7479 	valid_pri_image = true;
7480 
7481 	if (pri_image_status.image_status_mask & 1) {
7482 		ql_dbg(ql_dbg_init, vha, 0x018d,
7483 		    "Primary image is active\n");
7484 		active_pri_image = true;
7485 	}
7486 
7487 check_sec_image:
7488 	if (!ha->flt_region_img_status_sec) {
7489 		ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
7490 		goto check_valid_image;
7491 	}
7492 
7493 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
7494 	    ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
7495 	qla27xx_print_image(vha, "Secondary image", &sec_image_status);
7496 
7497 	if (qla27xx_check_image_status_signature(&sec_image_status)) {
7498 		ql_dbg(ql_dbg_init, vha, 0x018b,
7499 		    "Secondary image signature (%#x) not valid\n",
7500 		    le32_to_cpu(sec_image_status.signature));
7501 		goto check_valid_image;
7502 	}
7503 
7504 	if (qla27xx_image_status_checksum(&sec_image_status)) {
7505 		ql_dbg(ql_dbg_init, vha, 0x018c,
7506 		    "Secondary image checksum failed\n");
7507 		goto check_valid_image;
7508 	}
7509 
7510 	valid_sec_image = true;
7511 
7512 	if (sec_image_status.image_status_mask & 1) {
7513 		ql_dbg(ql_dbg_init, vha, 0x018d,
7514 		    "Secondary image is active\n");
7515 		active_sec_image = true;
7516 	}
7517 
7518 check_valid_image:
7519 	if (valid_pri_image && active_pri_image)
7520 		active_regions->global = QLA27XX_PRIMARY_IMAGE;
7521 
7522 	if (valid_sec_image && active_sec_image) {
7523 		if (!active_regions->global ||
7524 		    qla27xx_compare_image_generation(
7525 			&pri_image_status, &sec_image_status) < 0) {
7526 			active_regions->global = QLA27XX_SECONDARY_IMAGE;
7527 		}
7528 	}
7529 
7530 	ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
7531 	    active_regions->global == QLA27XX_DEFAULT_IMAGE ?
7532 		"default (boot/fw)" :
7533 	    active_regions->global == QLA27XX_PRIMARY_IMAGE ?
7534 		"primary" :
7535 	    active_regions->global == QLA27XX_SECONDARY_IMAGE ?
7536 		"secondary" : "invalid",
7537 	    active_regions->global);
7538 }
7539 
7540 bool qla24xx_risc_firmware_invalid(uint32_t *dword)
7541 {
7542 	return
7543 	    !(dword[4] | dword[5] | dword[6] | dword[7]) ||
7544 	    !(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
7545 }
7546 
7547 static int
7548 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
7549     uint32_t faddr)
7550 {
7551 	int rval;
7552 	uint templates, segments, fragment;
7553 	ulong i;
7554 	uint j;
7555 	ulong dlen;
7556 	uint32_t *dcode;
7557 	uint32_t risc_addr, risc_size, risc_attr = 0;
7558 	struct qla_hw_data *ha = vha->hw;
7559 	struct req_que *req = ha->req_q_map[0];
7560 	struct fwdt *fwdt = ha->fwdt;
7561 
7562 	ql_dbg(ql_dbg_init, vha, 0x008b,
7563 	    "FW: Loading firmware from flash (%x).\n", faddr);
7564 
7565 	dcode = (void *)req->ring;
7566 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
7567 	if (qla24xx_risc_firmware_invalid(dcode)) {
7568 		ql_log(ql_log_fatal, vha, 0x008c,
7569 		    "Unable to verify the integrity of flash firmware "
7570 		    "image.\n");
7571 		ql_log(ql_log_fatal, vha, 0x008d,
7572 		    "Firmware data: %08x %08x %08x %08x.\n",
7573 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7574 
7575 		return QLA_FUNCTION_FAILED;
7576 	}
7577 
7578 	dcode = (void *)req->ring;
7579 	*srisc_addr = 0;
7580 	segments = FA_RISC_CODE_SEGMENTS;
7581 	for (j = 0; j < segments; j++) {
7582 		ql_dbg(ql_dbg_init, vha, 0x008d,
7583 		    "-> Loading segment %u...\n", j);
7584 		qla24xx_read_flash_data(vha, dcode, faddr, 10);
7585 		risc_addr = be32_to_cpu(dcode[2]);
7586 		risc_size = be32_to_cpu(dcode[3]);
7587 		if (!*srisc_addr) {
7588 			*srisc_addr = risc_addr;
7589 			risc_attr = be32_to_cpu(dcode[9]);
7590 		}
7591 
7592 		dlen = ha->fw_transfer_size >> 2;
7593 		for (fragment = 0; risc_size; fragment++) {
7594 			if (dlen > risc_size)
7595 				dlen = risc_size;
7596 
7597 			ql_dbg(ql_dbg_init, vha, 0x008e,
7598 			    "-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
7599 			    fragment, risc_addr, faddr, dlen);
7600 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
7601 			for (i = 0; i < dlen; i++)
7602 				dcode[i] = swab32(dcode[i]);
7603 
7604 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
7605 			if (rval) {
7606 				ql_log(ql_log_fatal, vha, 0x008f,
7607 				    "-> Failed load firmware fragment %u.\n",
7608 				    fragment);
7609 				return QLA_FUNCTION_FAILED;
7610 			}
7611 
7612 			faddr += dlen;
7613 			risc_addr += dlen;
7614 			risc_size -= dlen;
7615 		}
7616 	}
7617 
7618 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
7619 		return QLA_SUCCESS;
7620 
7621 	templates = (risc_attr & BIT_9) ? 2 : 1;
7622 	ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
7623 	for (j = 0; j < templates; j++, fwdt++) {
7624 		if (fwdt->template)
7625 			vfree(fwdt->template);
7626 		fwdt->template = NULL;
7627 		fwdt->length = 0;
7628 
7629 		dcode = (void *)req->ring;
7630 		qla24xx_read_flash_data(vha, dcode, faddr, 7);
7631 		risc_size = be32_to_cpu(dcode[2]);
7632 		ql_dbg(ql_dbg_init, vha, 0x0161,
7633 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
7634 		    j, faddr, risc_size);
7635 		if (!risc_size || !~risc_size) {
7636 			ql_dbg(ql_dbg_init, vha, 0x0162,
7637 			    "-> fwdt%u failed to read array\n", j);
7638 			goto failed;
7639 		}
7640 
7641 		/* skip header and ignore checksum */
7642 		faddr += 7;
7643 		risc_size -= 8;
7644 
7645 		ql_dbg(ql_dbg_init, vha, 0x0163,
7646 		    "-> fwdt%u template allocate template %#x words...\n",
7647 		    j, risc_size);
7648 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
7649 		if (!fwdt->template) {
7650 			ql_log(ql_log_warn, vha, 0x0164,
7651 			    "-> fwdt%u failed allocate template.\n", j);
7652 			goto failed;
7653 		}
7654 
7655 		dcode = fwdt->template;
7656 		qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
7657 
7658 		if (!qla27xx_fwdt_template_valid(dcode)) {
7659 			ql_log(ql_log_warn, vha, 0x0165,
7660 			    "-> fwdt%u failed template validate\n", j);
7661 			goto failed;
7662 		}
7663 
7664 		dlen = qla27xx_fwdt_template_size(dcode);
7665 		ql_dbg(ql_dbg_init, vha, 0x0166,
7666 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
7667 		    j, dlen, dlen / sizeof(*dcode));
7668 		if (dlen > risc_size * sizeof(*dcode)) {
7669 			ql_log(ql_log_warn, vha, 0x0167,
7670 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
7671 			    j, dlen - risc_size * sizeof(*dcode));
7672 			goto failed;
7673 		}
7674 
7675 		fwdt->length = dlen;
7676 		ql_dbg(ql_dbg_init, vha, 0x0168,
7677 		    "-> fwdt%u loaded template ok\n", j);
7678 
7679 		faddr += risc_size + 1;
7680 	}
7681 
7682 	return QLA_SUCCESS;
7683 
7684 failed:
7685 	if (fwdt->template)
7686 		vfree(fwdt->template);
7687 	fwdt->template = NULL;
7688 	fwdt->length = 0;
7689 
7690 	return QLA_SUCCESS;
7691 }
7692 
7693 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
7694 
7695 int
7696 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7697 {
7698 	int	rval;
7699 	int	i, fragment;
7700 	uint16_t *wcode, *fwcode;
7701 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
7702 	struct fw_blob *blob;
7703 	struct qla_hw_data *ha = vha->hw;
7704 	struct req_que *req = ha->req_q_map[0];
7705 
7706 	/* Load firmware blob. */
7707 	blob = qla2x00_request_firmware(vha);
7708 	if (!blob) {
7709 		ql_log(ql_log_info, vha, 0x0083,
7710 		    "Firmware image unavailable.\n");
7711 		ql_log(ql_log_info, vha, 0x0084,
7712 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
7713 		return QLA_FUNCTION_FAILED;
7714 	}
7715 
7716 	rval = QLA_SUCCESS;
7717 
7718 	wcode = (uint16_t *)req->ring;
7719 	*srisc_addr = 0;
7720 	fwcode = (uint16_t *)blob->fw->data;
7721 	fwclen = 0;
7722 
7723 	/* Validate firmware image by checking version. */
7724 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
7725 		ql_log(ql_log_fatal, vha, 0x0085,
7726 		    "Unable to verify integrity of firmware image (%zd).\n",
7727 		    blob->fw->size);
7728 		goto fail_fw_integrity;
7729 	}
7730 	for (i = 0; i < 4; i++)
7731 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
7732 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
7733 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
7734 		wcode[2] == 0 && wcode[3] == 0)) {
7735 		ql_log(ql_log_fatal, vha, 0x0086,
7736 		    "Unable to verify integrity of firmware image.\n");
7737 		ql_log(ql_log_fatal, vha, 0x0087,
7738 		    "Firmware data: %04x %04x %04x %04x.\n",
7739 		    wcode[0], wcode[1], wcode[2], wcode[3]);
7740 		goto fail_fw_integrity;
7741 	}
7742 
7743 	seg = blob->segs;
7744 	while (*seg && rval == QLA_SUCCESS) {
7745 		risc_addr = *seg;
7746 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
7747 		risc_size = be16_to_cpu(fwcode[3]);
7748 
7749 		/* Validate firmware image size. */
7750 		fwclen += risc_size * sizeof(uint16_t);
7751 		if (blob->fw->size < fwclen) {
7752 			ql_log(ql_log_fatal, vha, 0x0088,
7753 			    "Unable to verify integrity of firmware image "
7754 			    "(%zd).\n", blob->fw->size);
7755 			goto fail_fw_integrity;
7756 		}
7757 
7758 		fragment = 0;
7759 		while (risc_size > 0 && rval == QLA_SUCCESS) {
7760 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
7761 			if (wlen > risc_size)
7762 				wlen = risc_size;
7763 			ql_dbg(ql_dbg_init, vha, 0x0089,
7764 			    "Loading risc segment@ risc addr %x number of "
7765 			    "words 0x%x.\n", risc_addr, wlen);
7766 
7767 			for (i = 0; i < wlen; i++)
7768 				wcode[i] = swab16(fwcode[i]);
7769 
7770 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
7771 			    wlen);
7772 			if (rval) {
7773 				ql_log(ql_log_fatal, vha, 0x008a,
7774 				    "Failed to load segment %d of firmware.\n",
7775 				    fragment);
7776 				break;
7777 			}
7778 
7779 			fwcode += wlen;
7780 			risc_addr += wlen;
7781 			risc_size -= wlen;
7782 			fragment++;
7783 		}
7784 
7785 		/* Next segment. */
7786 		seg++;
7787 	}
7788 	return rval;
7789 
7790 fail_fw_integrity:
7791 	return QLA_FUNCTION_FAILED;
7792 }
7793 
7794 static int
7795 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7796 {
7797 	int	rval;
7798 	uint templates, segments, fragment;
7799 	uint32_t *dcode;
7800 	ulong dlen;
7801 	uint32_t risc_addr, risc_size, risc_attr = 0;
7802 	ulong i;
7803 	uint j;
7804 	struct fw_blob *blob;
7805 	uint32_t *fwcode;
7806 	struct qla_hw_data *ha = vha->hw;
7807 	struct req_que *req = ha->req_q_map[0];
7808 	struct fwdt *fwdt = ha->fwdt;
7809 
7810 	ql_dbg(ql_dbg_init, vha, 0x0090,
7811 	    "-> FW: Loading via request-firmware.\n");
7812 
7813 	blob = qla2x00_request_firmware(vha);
7814 	if (!blob) {
7815 		ql_log(ql_log_warn, vha, 0x0092,
7816 		    "-> Firmware file not found.\n");
7817 
7818 		return QLA_FUNCTION_FAILED;
7819 	}
7820 
7821 	fwcode = (void *)blob->fw->data;
7822 	dcode = fwcode;
7823 	if (qla24xx_risc_firmware_invalid(dcode)) {
7824 		ql_log(ql_log_fatal, vha, 0x0093,
7825 		    "Unable to verify integrity of firmware image (%zd).\n",
7826 		    blob->fw->size);
7827 		ql_log(ql_log_fatal, vha, 0x0095,
7828 		    "Firmware data: %08x %08x %08x %08x.\n",
7829 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7830 		return QLA_FUNCTION_FAILED;
7831 	}
7832 
7833 	dcode = (void *)req->ring;
7834 	*srisc_addr = 0;
7835 	segments = FA_RISC_CODE_SEGMENTS;
7836 	for (j = 0; j < segments; j++) {
7837 		ql_dbg(ql_dbg_init, vha, 0x0096,
7838 		    "-> Loading segment %u...\n", j);
7839 		risc_addr = be32_to_cpu(fwcode[2]);
7840 		risc_size = be32_to_cpu(fwcode[3]);
7841 
7842 		if (!*srisc_addr) {
7843 			*srisc_addr = risc_addr;
7844 			risc_attr = be32_to_cpu(fwcode[9]);
7845 		}
7846 
7847 		dlen = ha->fw_transfer_size >> 2;
7848 		for (fragment = 0; risc_size; fragment++) {
7849 			if (dlen > risc_size)
7850 				dlen = risc_size;
7851 
7852 			ql_dbg(ql_dbg_init, vha, 0x0097,
7853 			    "-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
7854 			    fragment, risc_addr,
7855 			    (uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
7856 			    dlen);
7857 
7858 			for (i = 0; i < dlen; i++)
7859 				dcode[i] = swab32(fwcode[i]);
7860 
7861 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
7862 			if (rval) {
7863 				ql_log(ql_log_fatal, vha, 0x0098,
7864 				    "-> Failed load firmware fragment %u.\n",
7865 				    fragment);
7866 				return QLA_FUNCTION_FAILED;
7867 			}
7868 
7869 			fwcode += dlen;
7870 			risc_addr += dlen;
7871 			risc_size -= dlen;
7872 		}
7873 	}
7874 
7875 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
7876 		return QLA_SUCCESS;
7877 
7878 	templates = (risc_attr & BIT_9) ? 2 : 1;
7879 	ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
7880 	for (j = 0; j < templates; j++, fwdt++) {
7881 		if (fwdt->template)
7882 			vfree(fwdt->template);
7883 		fwdt->template = NULL;
7884 		fwdt->length = 0;
7885 
7886 		risc_size = be32_to_cpu(fwcode[2]);
7887 		ql_dbg(ql_dbg_init, vha, 0x0171,
7888 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
7889 		    j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
7890 		    risc_size);
7891 		if (!risc_size || !~risc_size) {
7892 			ql_dbg(ql_dbg_init, vha, 0x0172,
7893 			    "-> fwdt%u failed to read array\n", j);
7894 			goto failed;
7895 		}
7896 
7897 		/* skip header and ignore checksum */
7898 		fwcode += 7;
7899 		risc_size -= 8;
7900 
7901 		ql_dbg(ql_dbg_init, vha, 0x0173,
7902 		    "-> fwdt%u template allocate template %#x words...\n",
7903 		    j, risc_size);
7904 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
7905 		if (!fwdt->template) {
7906 			ql_log(ql_log_warn, vha, 0x0174,
7907 			    "-> fwdt%u failed allocate template.\n", j);
7908 			goto failed;
7909 		}
7910 
7911 		dcode = fwdt->template;
7912 		for (i = 0; i < risc_size; i++)
7913 			dcode[i] = fwcode[i];
7914 
7915 		if (!qla27xx_fwdt_template_valid(dcode)) {
7916 			ql_log(ql_log_warn, vha, 0x0175,
7917 			    "-> fwdt%u failed template validate\n", j);
7918 			goto failed;
7919 		}
7920 
7921 		dlen = qla27xx_fwdt_template_size(dcode);
7922 		ql_dbg(ql_dbg_init, vha, 0x0176,
7923 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
7924 		    j, dlen, dlen / sizeof(*dcode));
7925 		if (dlen > risc_size * sizeof(*dcode)) {
7926 			ql_log(ql_log_warn, vha, 0x0177,
7927 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
7928 			    j, dlen - risc_size * sizeof(*dcode));
7929 			goto failed;
7930 		}
7931 
7932 		fwdt->length = dlen;
7933 		ql_dbg(ql_dbg_init, vha, 0x0178,
7934 		    "-> fwdt%u loaded template ok\n", j);
7935 
7936 		fwcode += risc_size + 1;
7937 	}
7938 
7939 	return QLA_SUCCESS;
7940 
7941 failed:
7942 	if (fwdt->template)
7943 		vfree(fwdt->template);
7944 	fwdt->template = NULL;
7945 	fwdt->length = 0;
7946 
7947 	return QLA_SUCCESS;
7948 }
7949 
7950 int
7951 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7952 {
7953 	int rval;
7954 
7955 	if (ql2xfwloadbin == 1)
7956 		return qla81xx_load_risc(vha, srisc_addr);
7957 
7958 	/*
7959 	 * FW Load priority:
7960 	 * 1) Firmware via request-firmware interface (.bin file).
7961 	 * 2) Firmware residing in flash.
7962 	 */
7963 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
7964 	if (rval == QLA_SUCCESS)
7965 		return rval;
7966 
7967 	return qla24xx_load_risc_flash(vha, srisc_addr,
7968 	    vha->hw->flt_region_fw);
7969 }
7970 
7971 int
7972 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7973 {
7974 	int rval;
7975 	struct qla_hw_data *ha = vha->hw;
7976 	struct active_regions active_regions = { };
7977 
7978 	if (ql2xfwloadbin == 2)
7979 		goto try_blob_fw;
7980 
7981 	/* FW Load priority:
7982 	 * 1) Firmware residing in flash.
7983 	 * 2) Firmware via request-firmware interface (.bin file).
7984 	 * 3) Golden-Firmware residing in flash -- (limited operation).
7985 	 */
7986 
7987 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
7988 		goto try_primary_fw;
7989 
7990 	qla27xx_get_active_image(vha, &active_regions);
7991 
7992 	if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
7993 		goto try_primary_fw;
7994 
7995 	ql_dbg(ql_dbg_init, vha, 0x008b,
7996 	    "Loading secondary firmware image.\n");
7997 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
7998 	if (!rval)
7999 		return rval;
8000 
8001 try_primary_fw:
8002 	ql_dbg(ql_dbg_init, vha, 0x008b,
8003 	    "Loading primary firmware image.\n");
8004 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
8005 	if (!rval)
8006 		return rval;
8007 
8008 try_blob_fw:
8009 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8010 	if (!rval || !ha->flt_region_gold_fw)
8011 		return rval;
8012 
8013 	ql_log(ql_log_info, vha, 0x0099,
8014 	    "Attempting to fallback to golden firmware.\n");
8015 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
8016 	if (rval)
8017 		return rval;
8018 
8019 	ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
8020 	ha->flags.running_gold_fw = 1;
8021 	return rval;
8022 }
8023 
8024 void
8025 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
8026 {
8027 	int ret, retries;
8028 	struct qla_hw_data *ha = vha->hw;
8029 
8030 	if (ha->flags.pci_channel_io_perm_failure)
8031 		return;
8032 	if (!IS_FWI2_CAPABLE(ha))
8033 		return;
8034 	if (!ha->fw_major_version)
8035 		return;
8036 	if (!ha->flags.fw_started)
8037 		return;
8038 
8039 	ret = qla2x00_stop_firmware(vha);
8040 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
8041 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
8042 		ha->isp_ops->reset_chip(vha);
8043 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
8044 			continue;
8045 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
8046 			continue;
8047 		ql_log(ql_log_info, vha, 0x8015,
8048 		    "Attempting retry of stop-firmware command.\n");
8049 		ret = qla2x00_stop_firmware(vha);
8050 	}
8051 
8052 	QLA_FW_STOPPED(ha);
8053 	ha->flags.fw_init_done = 0;
8054 }
8055 
8056 int
8057 qla24xx_configure_vhba(scsi_qla_host_t *vha)
8058 {
8059 	int rval = QLA_SUCCESS;
8060 	int rval2;
8061 	uint16_t mb[MAILBOX_REGISTER_COUNT];
8062 	struct qla_hw_data *ha = vha->hw;
8063 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8064 
8065 	if (!vha->vp_idx)
8066 		return -EINVAL;
8067 
8068 	rval = qla2x00_fw_ready(base_vha);
8069 
8070 	if (rval == QLA_SUCCESS) {
8071 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8072 		qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8073 	}
8074 
8075 	vha->flags.management_server_logged_in = 0;
8076 
8077 	/* Login to SNS first */
8078 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
8079 	    BIT_1);
8080 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
8081 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
8082 			ql_dbg(ql_dbg_init, vha, 0x0120,
8083 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
8084 			    NPH_SNS, rval2);
8085 		else
8086 			ql_dbg(ql_dbg_init, vha, 0x0103,
8087 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
8088 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
8089 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
8090 		return (QLA_FUNCTION_FAILED);
8091 	}
8092 
8093 	atomic_set(&vha->loop_down_timer, 0);
8094 	atomic_set(&vha->loop_state, LOOP_UP);
8095 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8096 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
8097 	rval = qla2x00_loop_resync(base_vha);
8098 
8099 	return rval;
8100 }
8101 
8102 /* 84XX Support **************************************************************/
8103 
8104 static LIST_HEAD(qla_cs84xx_list);
8105 static DEFINE_MUTEX(qla_cs84xx_mutex);
8106 
8107 static struct qla_chip_state_84xx *
8108 qla84xx_get_chip(struct scsi_qla_host *vha)
8109 {
8110 	struct qla_chip_state_84xx *cs84xx;
8111 	struct qla_hw_data *ha = vha->hw;
8112 
8113 	mutex_lock(&qla_cs84xx_mutex);
8114 
8115 	/* Find any shared 84xx chip. */
8116 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
8117 		if (cs84xx->bus == ha->pdev->bus) {
8118 			kref_get(&cs84xx->kref);
8119 			goto done;
8120 		}
8121 	}
8122 
8123 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
8124 	if (!cs84xx)
8125 		goto done;
8126 
8127 	kref_init(&cs84xx->kref);
8128 	spin_lock_init(&cs84xx->access_lock);
8129 	mutex_init(&cs84xx->fw_update_mutex);
8130 	cs84xx->bus = ha->pdev->bus;
8131 
8132 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
8133 done:
8134 	mutex_unlock(&qla_cs84xx_mutex);
8135 	return cs84xx;
8136 }
8137 
8138 static void
8139 __qla84xx_chip_release(struct kref *kref)
8140 {
8141 	struct qla_chip_state_84xx *cs84xx =
8142 	    container_of(kref, struct qla_chip_state_84xx, kref);
8143 
8144 	mutex_lock(&qla_cs84xx_mutex);
8145 	list_del(&cs84xx->list);
8146 	mutex_unlock(&qla_cs84xx_mutex);
8147 	kfree(cs84xx);
8148 }
8149 
8150 void
8151 qla84xx_put_chip(struct scsi_qla_host *vha)
8152 {
8153 	struct qla_hw_data *ha = vha->hw;
8154 
8155 	if (ha->cs84xx)
8156 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
8157 }
8158 
8159 static int
8160 qla84xx_init_chip(scsi_qla_host_t *vha)
8161 {
8162 	int rval;
8163 	uint16_t status[2];
8164 	struct qla_hw_data *ha = vha->hw;
8165 
8166 	mutex_lock(&ha->cs84xx->fw_update_mutex);
8167 
8168 	rval = qla84xx_verify_chip(vha, status);
8169 
8170 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
8171 
8172 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
8173 	    QLA_SUCCESS;
8174 }
8175 
8176 /* 81XX Support **************************************************************/
8177 
8178 int
8179 qla81xx_nvram_config(scsi_qla_host_t *vha)
8180 {
8181 	int   rval;
8182 	struct init_cb_81xx *icb;
8183 	struct nvram_81xx *nv;
8184 	uint32_t *dptr;
8185 	uint8_t  *dptr1, *dptr2;
8186 	uint32_t chksum;
8187 	uint16_t cnt;
8188 	struct qla_hw_data *ha = vha->hw;
8189 	uint32_t faddr;
8190 	struct active_regions active_regions = { };
8191 
8192 	rval = QLA_SUCCESS;
8193 	icb = (struct init_cb_81xx *)ha->init_cb;
8194 	nv = ha->nvram;
8195 
8196 	/* Determine NVRAM starting address. */
8197 	ha->nvram_size = sizeof(*nv);
8198 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
8199 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
8200 		ha->vpd_size = FA_VPD_SIZE_82XX;
8201 
8202 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
8203 		qla28xx_get_aux_images(vha, &active_regions);
8204 
8205 	/* Get VPD data into cache */
8206 	ha->vpd = ha->nvram + VPD_OFFSET;
8207 
8208 	faddr = ha->flt_region_vpd;
8209 	if (IS_QLA28XX(ha)) {
8210 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8211 			faddr = ha->flt_region_vpd_sec;
8212 		ql_dbg(ql_dbg_init, vha, 0x0110,
8213 		    "Loading %s nvram image.\n",
8214 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8215 		    "primary" : "secondary");
8216 	}
8217 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
8218 
8219 	/* Get NVRAM data into cache and calculate checksum. */
8220 	faddr = ha->flt_region_nvram;
8221 	if (IS_QLA28XX(ha)) {
8222 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8223 			faddr = ha->flt_region_nvram_sec;
8224 	}
8225 	ql_dbg(ql_dbg_init, vha, 0x0110,
8226 	    "Loading %s nvram image.\n",
8227 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8228 	    "primary" : "secondary");
8229 	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
8230 
8231 	dptr = (uint32_t *)nv;
8232 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
8233 		chksum += le32_to_cpu(*dptr);
8234 
8235 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
8236 	    "Contents of NVRAM:\n");
8237 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
8238 	    nv, ha->nvram_size);
8239 
8240 	/* Bad NVRAM data, set defaults parameters. */
8241 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
8242 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
8243 		/* Reset NVRAM data. */
8244 		ql_log(ql_log_info, vha, 0x0073,
8245 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
8246 		    chksum, nv->id, le16_to_cpu(nv->nvram_version));
8247 		ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
8248 		ql_log(ql_log_info, vha, 0x0074,
8249 		    "Falling back to functioning (yet invalid -- WWPN) "
8250 		    "defaults.\n");
8251 
8252 		/*
8253 		 * Set default initialization control block.
8254 		 */
8255 		memset(nv, 0, ha->nvram_size);
8256 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
8257 		nv->version = cpu_to_le16(ICB_VERSION);
8258 		nv->frame_payload_size = 2048;
8259 		nv->execution_throttle = cpu_to_le16(0xFFFF);
8260 		nv->exchange_count = cpu_to_le16(0);
8261 		nv->port_name[0] = 0x21;
8262 		nv->port_name[1] = 0x00 + ha->port_no + 1;
8263 		nv->port_name[2] = 0x00;
8264 		nv->port_name[3] = 0xe0;
8265 		nv->port_name[4] = 0x8b;
8266 		nv->port_name[5] = 0x1c;
8267 		nv->port_name[6] = 0x55;
8268 		nv->port_name[7] = 0x86;
8269 		nv->node_name[0] = 0x20;
8270 		nv->node_name[1] = 0x00;
8271 		nv->node_name[2] = 0x00;
8272 		nv->node_name[3] = 0xe0;
8273 		nv->node_name[4] = 0x8b;
8274 		nv->node_name[5] = 0x1c;
8275 		nv->node_name[6] = 0x55;
8276 		nv->node_name[7] = 0x86;
8277 		nv->login_retry_count = cpu_to_le16(8);
8278 		nv->interrupt_delay_timer = cpu_to_le16(0);
8279 		nv->login_timeout = cpu_to_le16(0);
8280 		nv->firmware_options_1 =
8281 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
8282 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
8283 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
8284 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
8285 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
8286 		nv->efi_parameters = cpu_to_le32(0);
8287 		nv->reset_delay = 5;
8288 		nv->max_luns_per_target = cpu_to_le16(128);
8289 		nv->port_down_retry_count = cpu_to_le16(30);
8290 		nv->link_down_timeout = cpu_to_le16(180);
8291 		nv->enode_mac[0] = 0x00;
8292 		nv->enode_mac[1] = 0xC0;
8293 		nv->enode_mac[2] = 0xDD;
8294 		nv->enode_mac[3] = 0x04;
8295 		nv->enode_mac[4] = 0x05;
8296 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
8297 
8298 		rval = 1;
8299 	}
8300 
8301 	if (IS_T10_PI_CAPABLE(ha))
8302 		nv->frame_payload_size &= ~7;
8303 
8304 	qlt_81xx_config_nvram_stage1(vha, nv);
8305 
8306 	/* Reset Initialization control block */
8307 	memset(icb, 0, ha->init_cb_size);
8308 
8309 	/* Copy 1st segment. */
8310 	dptr1 = (uint8_t *)icb;
8311 	dptr2 = (uint8_t *)&nv->version;
8312 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
8313 	while (cnt--)
8314 		*dptr1++ = *dptr2++;
8315 
8316 	icb->login_retry_count = nv->login_retry_count;
8317 
8318 	/* Copy 2nd segment. */
8319 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
8320 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
8321 	cnt = (uint8_t *)&icb->reserved_5 -
8322 	    (uint8_t *)&icb->interrupt_delay_timer;
8323 	while (cnt--)
8324 		*dptr1++ = *dptr2++;
8325 
8326 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
8327 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
8328 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
8329 		icb->enode_mac[0] = 0x00;
8330 		icb->enode_mac[1] = 0xC0;
8331 		icb->enode_mac[2] = 0xDD;
8332 		icb->enode_mac[3] = 0x04;
8333 		icb->enode_mac[4] = 0x05;
8334 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
8335 	}
8336 
8337 	/* Use extended-initialization control block. */
8338 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
8339 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
8340 	/*
8341 	 * Setup driver NVRAM options.
8342 	 */
8343 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
8344 	    "QLE8XXX");
8345 
8346 	qlt_81xx_config_nvram_stage2(vha, icb);
8347 
8348 	/* Use alternate WWN? */
8349 	if (nv->host_p & cpu_to_le32(BIT_15)) {
8350 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
8351 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
8352 	}
8353 
8354 	/* Prepare nodename */
8355 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
8356 		/*
8357 		 * Firmware will apply the following mask if the nodename was
8358 		 * not provided.
8359 		 */
8360 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
8361 		icb->node_name[0] &= 0xF0;
8362 	}
8363 
8364 	/* Set host adapter parameters. */
8365 	ha->flags.disable_risc_code_load = 0;
8366 	ha->flags.enable_lip_reset = 0;
8367 	ha->flags.enable_lip_full_login =
8368 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
8369 	ha->flags.enable_target_reset =
8370 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
8371 	ha->flags.enable_led_scheme = 0;
8372 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
8373 
8374 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
8375 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
8376 
8377 	/* save HBA serial number */
8378 	ha->serial0 = icb->port_name[5];
8379 	ha->serial1 = icb->port_name[6];
8380 	ha->serial2 = icb->port_name[7];
8381 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
8382 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
8383 
8384 	icb->execution_throttle = cpu_to_le16(0xFFFF);
8385 
8386 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
8387 
8388 	/* Set minimum login_timeout to 4 seconds. */
8389 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
8390 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
8391 	if (le16_to_cpu(nv->login_timeout) < 4)
8392 		nv->login_timeout = cpu_to_le16(4);
8393 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
8394 
8395 	/* Set minimum RATOV to 100 tenths of a second. */
8396 	ha->r_a_tov = 100;
8397 
8398 	ha->loop_reset_delay = nv->reset_delay;
8399 
8400 	/* Link Down Timeout = 0:
8401 	 *
8402 	 *	When Port Down timer expires we will start returning
8403 	 *	I/O's to OS with "DID_NO_CONNECT".
8404 	 *
8405 	 * Link Down Timeout != 0:
8406 	 *
8407 	 *	 The driver waits for the link to come up after link down
8408 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
8409 	 */
8410 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
8411 		ha->loop_down_abort_time =
8412 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
8413 	} else {
8414 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
8415 		ha->loop_down_abort_time =
8416 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
8417 	}
8418 
8419 	/* Need enough time to try and get the port back. */
8420 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
8421 	if (qlport_down_retry)
8422 		ha->port_down_retry_count = qlport_down_retry;
8423 
8424 	/* Set login_retry_count */
8425 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
8426 	if (ha->port_down_retry_count ==
8427 	    le16_to_cpu(nv->port_down_retry_count) &&
8428 	    ha->port_down_retry_count > 3)
8429 		ha->login_retry_count = ha->port_down_retry_count;
8430 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
8431 		ha->login_retry_count = ha->port_down_retry_count;
8432 	if (ql2xloginretrycount)
8433 		ha->login_retry_count = ql2xloginretrycount;
8434 
8435 	/* if not running MSI-X we need handshaking on interrupts */
8436 	if (!vha->hw->flags.msix_enabled &&
8437 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
8438 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
8439 
8440 	/* Enable ZIO. */
8441 	if (!vha->flags.init_done) {
8442 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
8443 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
8444 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
8445 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
8446 	}
8447 	icb->firmware_options_2 &= cpu_to_le32(
8448 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
8449 	vha->flags.process_response_queue = 0;
8450 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
8451 		ha->zio_mode = QLA_ZIO_MODE_6;
8452 
8453 		ql_log(ql_log_info, vha, 0x0075,
8454 		    "ZIO mode %d enabled; timer delay (%d us).\n",
8455 		    ha->zio_mode,
8456 		    ha->zio_timer * 100);
8457 
8458 		icb->firmware_options_2 |= cpu_to_le32(
8459 		    (uint32_t)ha->zio_mode);
8460 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
8461 		vha->flags.process_response_queue = 1;
8462 	}
8463 
8464 	 /* enable RIDA Format2 */
8465 	icb->firmware_options_3 |= BIT_0;
8466 
8467 	/* N2N: driver will initiate Login instead of FW */
8468 	icb->firmware_options_3 |= BIT_8;
8469 
8470 	if (rval) {
8471 		ql_log(ql_log_warn, vha, 0x0076,
8472 		    "NVRAM configuration failed.\n");
8473 	}
8474 	return (rval);
8475 }
8476 
8477 int
8478 qla82xx_restart_isp(scsi_qla_host_t *vha)
8479 {
8480 	int status, rval;
8481 	struct qla_hw_data *ha = vha->hw;
8482 	struct scsi_qla_host *vp;
8483 	unsigned long flags;
8484 
8485 	status = qla2x00_init_rings(vha);
8486 	if (!status) {
8487 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8488 		ha->flags.chip_reset_done = 1;
8489 
8490 		status = qla2x00_fw_ready(vha);
8491 		if (!status) {
8492 			/* Issue a marker after FW becomes ready. */
8493 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8494 			vha->flags.online = 1;
8495 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8496 		}
8497 
8498 		/* if no cable then assume it's good */
8499 		if ((vha->device_flags & DFLG_NO_CABLE))
8500 			status = 0;
8501 	}
8502 
8503 	if (!status) {
8504 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8505 
8506 		if (!atomic_read(&vha->loop_down_timer)) {
8507 			/*
8508 			 * Issue marker command only when we are going
8509 			 * to start the I/O .
8510 			 */
8511 			vha->marker_needed = 1;
8512 		}
8513 
8514 		ha->isp_ops->enable_intrs(ha);
8515 
8516 		ha->isp_abort_cnt = 0;
8517 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
8518 
8519 		/* Update the firmware version */
8520 		status = qla82xx_check_md_needed(vha);
8521 
8522 		if (ha->fce) {
8523 			ha->flags.fce_enabled = 1;
8524 			memset(ha->fce, 0,
8525 			    fce_calc_size(ha->fce_bufs));
8526 			rval = qla2x00_enable_fce_trace(vha,
8527 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
8528 			    &ha->fce_bufs);
8529 			if (rval) {
8530 				ql_log(ql_log_warn, vha, 0x8001,
8531 				    "Unable to reinitialize FCE (%d).\n",
8532 				    rval);
8533 				ha->flags.fce_enabled = 0;
8534 			}
8535 		}
8536 
8537 		if (ha->eft) {
8538 			memset(ha->eft, 0, EFT_SIZE);
8539 			rval = qla2x00_enable_eft_trace(vha,
8540 			    ha->eft_dma, EFT_NUM_BUFFERS);
8541 			if (rval) {
8542 				ql_log(ql_log_warn, vha, 0x8010,
8543 				    "Unable to reinitialize EFT (%d).\n",
8544 				    rval);
8545 			}
8546 		}
8547 	}
8548 
8549 	if (!status) {
8550 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
8551 		    "qla82xx_restart_isp succeeded.\n");
8552 
8553 		spin_lock_irqsave(&ha->vport_slock, flags);
8554 		list_for_each_entry(vp, &ha->vp_list, list) {
8555 			if (vp->vp_idx) {
8556 				atomic_inc(&vp->vref_count);
8557 				spin_unlock_irqrestore(&ha->vport_slock, flags);
8558 
8559 				qla2x00_vp_abort_isp(vp);
8560 
8561 				spin_lock_irqsave(&ha->vport_slock, flags);
8562 				atomic_dec(&vp->vref_count);
8563 			}
8564 		}
8565 		spin_unlock_irqrestore(&ha->vport_slock, flags);
8566 
8567 	} else {
8568 		ql_log(ql_log_warn, vha, 0x8016,
8569 		    "qla82xx_restart_isp **** FAILED ****.\n");
8570 	}
8571 
8572 	return status;
8573 }
8574 
8575 void
8576 qla81xx_update_fw_options(scsi_qla_host_t *vha)
8577 {
8578 	struct qla_hw_data *ha = vha->hw;
8579 
8580 	/*  Hold status IOCBs until ABTS response received. */
8581 	if (ql2xfwholdabts)
8582 		ha->fw_options[3] |= BIT_12;
8583 
8584 	/* Set Retry FLOGI in case of P2P connection */
8585 	if (ha->operating_mode == P2P) {
8586 		ha->fw_options[2] |= BIT_3;
8587 		ql_dbg(ql_dbg_disc, vha, 0x2103,
8588 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
8589 			__func__, ha->fw_options[2]);
8590 	}
8591 
8592 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
8593 	if (ql2xmvasynctoatio) {
8594 		if (qla_tgt_mode_enabled(vha) ||
8595 		    qla_dual_mode_enabled(vha))
8596 			ha->fw_options[2] |= BIT_11;
8597 		else
8598 			ha->fw_options[2] &= ~BIT_11;
8599 	}
8600 
8601 	if (qla_tgt_mode_enabled(vha) ||
8602 	    qla_dual_mode_enabled(vha)) {
8603 		/* FW auto send SCSI status during */
8604 		ha->fw_options[1] |= BIT_8;
8605 		ha->fw_options[10] |= (u16)SAM_STAT_BUSY << 8;
8606 
8607 		/* FW perform Exchange validation */
8608 		ha->fw_options[2] |= BIT_4;
8609 	} else {
8610 		ha->fw_options[1]  &= ~BIT_8;
8611 		ha->fw_options[10] &= 0x00ff;
8612 
8613 		ha->fw_options[2] &= ~BIT_4;
8614 	}
8615 
8616 	if (ql2xetsenable) {
8617 		/* Enable ETS Burst. */
8618 		memset(ha->fw_options, 0, sizeof(ha->fw_options));
8619 		ha->fw_options[2] |= BIT_9;
8620 	}
8621 
8622 	ql_dbg(ql_dbg_init, vha, 0x00e9,
8623 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
8624 	    __func__, ha->fw_options[1], ha->fw_options[2],
8625 	    ha->fw_options[3], vha->host->active_mode);
8626 
8627 	qla2x00_set_fw_options(vha, ha->fw_options);
8628 }
8629 
8630 /*
8631  * qla24xx_get_fcp_prio
8632  *	Gets the fcp cmd priority value for the logged in port.
8633  *	Looks for a match of the port descriptors within
8634  *	each of the fcp prio config entries. If a match is found,
8635  *	the tag (priority) value is returned.
8636  *
8637  * Input:
8638  *	vha = scsi host structure pointer.
8639  *	fcport = port structure pointer.
8640  *
8641  * Return:
8642  *	non-zero (if found)
8643  *	-1 (if not found)
8644  *
8645  * Context:
8646  * 	Kernel context
8647  */
8648 static int
8649 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8650 {
8651 	int i, entries;
8652 	uint8_t pid_match, wwn_match;
8653 	int priority;
8654 	uint32_t pid1, pid2;
8655 	uint64_t wwn1, wwn2;
8656 	struct qla_fcp_prio_entry *pri_entry;
8657 	struct qla_hw_data *ha = vha->hw;
8658 
8659 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
8660 		return -1;
8661 
8662 	priority = -1;
8663 	entries = ha->fcp_prio_cfg->num_entries;
8664 	pri_entry = &ha->fcp_prio_cfg->entry[0];
8665 
8666 	for (i = 0; i < entries; i++) {
8667 		pid_match = wwn_match = 0;
8668 
8669 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
8670 			pri_entry++;
8671 			continue;
8672 		}
8673 
8674 		/* check source pid for a match */
8675 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
8676 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
8677 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
8678 			if (pid1 == INVALID_PORT_ID)
8679 				pid_match++;
8680 			else if (pid1 == pid2)
8681 				pid_match++;
8682 		}
8683 
8684 		/* check destination pid for a match */
8685 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
8686 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
8687 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
8688 			if (pid1 == INVALID_PORT_ID)
8689 				pid_match++;
8690 			else if (pid1 == pid2)
8691 				pid_match++;
8692 		}
8693 
8694 		/* check source WWN for a match */
8695 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
8696 			wwn1 = wwn_to_u64(vha->port_name);
8697 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
8698 			if (wwn2 == (uint64_t)-1)
8699 				wwn_match++;
8700 			else if (wwn1 == wwn2)
8701 				wwn_match++;
8702 		}
8703 
8704 		/* check destination WWN for a match */
8705 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
8706 			wwn1 = wwn_to_u64(fcport->port_name);
8707 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
8708 			if (wwn2 == (uint64_t)-1)
8709 				wwn_match++;
8710 			else if (wwn1 == wwn2)
8711 				wwn_match++;
8712 		}
8713 
8714 		if (pid_match == 2 || wwn_match == 2) {
8715 			/* Found a matching entry */
8716 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
8717 				priority = pri_entry->tag;
8718 			break;
8719 		}
8720 
8721 		pri_entry++;
8722 	}
8723 
8724 	return priority;
8725 }
8726 
8727 /*
8728  * qla24xx_update_fcport_fcp_prio
8729  *	Activates fcp priority for the logged in fc port
8730  *
8731  * Input:
8732  *	vha = scsi host structure pointer.
8733  *	fcp = port structure pointer.
8734  *
8735  * Return:
8736  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8737  *
8738  * Context:
8739  *	Kernel context.
8740  */
8741 int
8742 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8743 {
8744 	int ret;
8745 	int priority;
8746 	uint16_t mb[5];
8747 
8748 	if (fcport->port_type != FCT_TARGET ||
8749 	    fcport->loop_id == FC_NO_LOOP_ID)
8750 		return QLA_FUNCTION_FAILED;
8751 
8752 	priority = qla24xx_get_fcp_prio(vha, fcport);
8753 	if (priority < 0)
8754 		return QLA_FUNCTION_FAILED;
8755 
8756 	if (IS_P3P_TYPE(vha->hw)) {
8757 		fcport->fcp_prio = priority & 0xf;
8758 		return QLA_SUCCESS;
8759 	}
8760 
8761 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
8762 	if (ret == QLA_SUCCESS) {
8763 		if (fcport->fcp_prio != priority)
8764 			ql_dbg(ql_dbg_user, vha, 0x709e,
8765 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
8766 			    "port_id=%02x%02x%02x.\n", priority,
8767 			    fcport->loop_id, fcport->d_id.b.domain,
8768 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
8769 		fcport->fcp_prio = priority & 0xf;
8770 	} else
8771 		ql_dbg(ql_dbg_user, vha, 0x704f,
8772 		    "Unable to update FCP_CMND priority - ret=0x%x for "
8773 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
8774 		    fcport->d_id.b.domain, fcport->d_id.b.area,
8775 		    fcport->d_id.b.al_pa);
8776 	return  ret;
8777 }
8778 
8779 /*
8780  * qla24xx_update_all_fcp_prio
8781  *	Activates fcp priority for all the logged in ports
8782  *
8783  * Input:
8784  *	ha = adapter block pointer.
8785  *
8786  * Return:
8787  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8788  *
8789  * Context:
8790  *	Kernel context.
8791  */
8792 int
8793 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
8794 {
8795 	int ret;
8796 	fc_port_t *fcport;
8797 
8798 	ret = QLA_FUNCTION_FAILED;
8799 	/* We need to set priority for all logged in ports */
8800 	list_for_each_entry(fcport, &vha->vp_fcports, list)
8801 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
8802 
8803 	return ret;
8804 }
8805 
8806 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
8807 	int vp_idx, bool startqp)
8808 {
8809 	int rsp_id = 0;
8810 	int  req_id = 0;
8811 	int i;
8812 	struct qla_hw_data *ha = vha->hw;
8813 	uint16_t qpair_id = 0;
8814 	struct qla_qpair *qpair = NULL;
8815 	struct qla_msix_entry *msix;
8816 
8817 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
8818 		ql_log(ql_log_warn, vha, 0x00181,
8819 		    "FW/Driver is not multi-queue capable.\n");
8820 		return NULL;
8821 	}
8822 
8823 	if (ql2xmqsupport || ql2xnvmeenable) {
8824 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
8825 		if (qpair == NULL) {
8826 			ql_log(ql_log_warn, vha, 0x0182,
8827 			    "Failed to allocate memory for queue pair.\n");
8828 			return NULL;
8829 		}
8830 
8831 		qpair->hw = vha->hw;
8832 		qpair->vha = vha;
8833 		qpair->qp_lock_ptr = &qpair->qp_lock;
8834 		spin_lock_init(&qpair->qp_lock);
8835 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
8836 
8837 		/* Assign available que pair id */
8838 		mutex_lock(&ha->mq_lock);
8839 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
8840 		if (ha->num_qpairs >= ha->max_qpairs) {
8841 			mutex_unlock(&ha->mq_lock);
8842 			ql_log(ql_log_warn, vha, 0x0183,
8843 			    "No resources to create additional q pair.\n");
8844 			goto fail_qid_map;
8845 		}
8846 		ha->num_qpairs++;
8847 		set_bit(qpair_id, ha->qpair_qid_map);
8848 		ha->queue_pair_map[qpair_id] = qpair;
8849 		qpair->id = qpair_id;
8850 		qpair->vp_idx = vp_idx;
8851 		qpair->fw_started = ha->flags.fw_started;
8852 		INIT_LIST_HEAD(&qpair->hints_list);
8853 		qpair->chip_reset = ha->base_qpair->chip_reset;
8854 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
8855 		qpair->enable_explicit_conf =
8856 		    ha->base_qpair->enable_explicit_conf;
8857 
8858 		for (i = 0; i < ha->msix_count; i++) {
8859 			msix = &ha->msix_entries[i];
8860 			if (msix->in_use)
8861 				continue;
8862 			qpair->msix = msix;
8863 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
8864 			    "Vector %x selected for qpair\n", msix->vector);
8865 			break;
8866 		}
8867 		if (!qpair->msix) {
8868 			ql_log(ql_log_warn, vha, 0x0184,
8869 			    "Out of MSI-X vectors!.\n");
8870 			goto fail_msix;
8871 		}
8872 
8873 		qpair->msix->in_use = 1;
8874 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
8875 		qpair->pdev = ha->pdev;
8876 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
8877 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
8878 
8879 		mutex_unlock(&ha->mq_lock);
8880 
8881 		/* Create response queue first */
8882 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
8883 		if (!rsp_id) {
8884 			ql_log(ql_log_warn, vha, 0x0185,
8885 			    "Failed to create response queue.\n");
8886 			goto fail_rsp;
8887 		}
8888 
8889 		qpair->rsp = ha->rsp_q_map[rsp_id];
8890 
8891 		/* Create request queue */
8892 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
8893 		    startqp);
8894 		if (!req_id) {
8895 			ql_log(ql_log_warn, vha, 0x0186,
8896 			    "Failed to create request queue.\n");
8897 			goto fail_req;
8898 		}
8899 
8900 		qpair->req = ha->req_q_map[req_id];
8901 		qpair->rsp->req = qpair->req;
8902 		qpair->rsp->qpair = qpair;
8903 		/* init qpair to this cpu. Will adjust at run time. */
8904 		qla_cpu_update(qpair, smp_processor_id());
8905 
8906 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
8907 			if (ha->fw_attributes & BIT_4)
8908 				qpair->difdix_supported = 1;
8909 		}
8910 
8911 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
8912 		if (!qpair->srb_mempool) {
8913 			ql_log(ql_log_warn, vha, 0xd036,
8914 			    "Failed to create srb mempool for qpair %d\n",
8915 			    qpair->id);
8916 			goto fail_mempool;
8917 		}
8918 
8919 		/* Mark as online */
8920 		qpair->online = 1;
8921 
8922 		if (!vha->flags.qpairs_available)
8923 			vha->flags.qpairs_available = 1;
8924 
8925 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
8926 		    "Request/Response queue pair created, id %d\n",
8927 		    qpair->id);
8928 		ql_dbg(ql_dbg_init, vha, 0x0187,
8929 		    "Request/Response queue pair created, id %d\n",
8930 		    qpair->id);
8931 	}
8932 	return qpair;
8933 
8934 fail_mempool:
8935 fail_req:
8936 	qla25xx_delete_rsp_que(vha, qpair->rsp);
8937 fail_rsp:
8938 	mutex_lock(&ha->mq_lock);
8939 	qpair->msix->in_use = 0;
8940 	list_del(&qpair->qp_list_elem);
8941 	if (list_empty(&vha->qp_list))
8942 		vha->flags.qpairs_available = 0;
8943 fail_msix:
8944 	ha->queue_pair_map[qpair_id] = NULL;
8945 	clear_bit(qpair_id, ha->qpair_qid_map);
8946 	ha->num_qpairs--;
8947 	mutex_unlock(&ha->mq_lock);
8948 fail_qid_map:
8949 	kfree(qpair);
8950 	return NULL;
8951 }
8952 
8953 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
8954 {
8955 	int ret = QLA_FUNCTION_FAILED;
8956 	struct qla_hw_data *ha = qpair->hw;
8957 
8958 	qpair->delete_in_progress = 1;
8959 	while (atomic_read(&qpair->ref_count))
8960 		msleep(500);
8961 
8962 	ret = qla25xx_delete_req_que(vha, qpair->req);
8963 	if (ret != QLA_SUCCESS)
8964 		goto fail;
8965 
8966 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
8967 	if (ret != QLA_SUCCESS)
8968 		goto fail;
8969 
8970 	mutex_lock(&ha->mq_lock);
8971 	ha->queue_pair_map[qpair->id] = NULL;
8972 	clear_bit(qpair->id, ha->qpair_qid_map);
8973 	ha->num_qpairs--;
8974 	list_del(&qpair->qp_list_elem);
8975 	if (list_empty(&vha->qp_list)) {
8976 		vha->flags.qpairs_available = 0;
8977 		vha->flags.qpairs_req_created = 0;
8978 		vha->flags.qpairs_rsp_created = 0;
8979 	}
8980 	mempool_destroy(qpair->srb_mempool);
8981 	kfree(qpair);
8982 	mutex_unlock(&ha->mq_lock);
8983 
8984 	return QLA_SUCCESS;
8985 fail:
8986 	return ret;
8987 }
8988