xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision a591525f)
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_plogi_done_event(struct scsi_qla_host *,
41     struct event_arg *);
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 	scsi_qla_host_t *vha = sp->vha;
54 	struct req_que *req;
55 	unsigned long flags;
56 
57 	spin_lock_irqsave(&vha->hw->hardware_lock, flags);
58 	req = vha->hw->req_q_map[0];
59 	req->outstanding_cmds[sp->handle] = NULL;
60 	iocb = &sp->u.iocb_cmd;
61 	iocb->timeout(sp);
62 	spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
63 }
64 
65 void
66 qla2x00_sp_free(void *ptr)
67 {
68 	srb_t *sp = ptr;
69 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
70 
71 	del_timer(&iocb->timer);
72 	qla2x00_rel_sp(sp);
73 }
74 
75 /* Asynchronous Login/Logout Routines -------------------------------------- */
76 
77 unsigned long
78 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
79 {
80 	unsigned long tmo;
81 	struct qla_hw_data *ha = vha->hw;
82 
83 	/* Firmware should use switch negotiated r_a_tov for timeout. */
84 	tmo = ha->r_a_tov / 10 * 2;
85 	if (IS_QLAFX00(ha)) {
86 		tmo = FX00_DEF_RATOV * 2;
87 	} else if (!IS_FWI2_CAPABLE(ha)) {
88 		/*
89 		 * Except for earlier ISPs where the timeout is seeded from the
90 		 * initialization control block.
91 		 */
92 		tmo = ha->login_timeout;
93 	}
94 	return tmo;
95 }
96 
97 void
98 qla2x00_async_iocb_timeout(void *data)
99 {
100 	srb_t *sp = data;
101 	fc_port_t *fcport = sp->fcport;
102 	struct srb_iocb *lio = &sp->u.iocb_cmd;
103 
104 	if (fcport) {
105 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
106 		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
107 		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
108 
109 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
110 	} else {
111 		pr_info("Async-%s timeout - hdl=%x.\n",
112 		    sp->name, sp->handle);
113 	}
114 
115 	switch (sp->type) {
116 	case SRB_LOGIN_CMD:
117 		/* Retry as needed. */
118 		lio->u.logio.data[0] = MBS_COMMAND_ERROR;
119 		lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
120 			QLA_LOGIO_LOGIN_RETRIED : 0;
121 		sp->done(sp, QLA_FUNCTION_TIMEOUT);
122 		break;
123 	case SRB_LOGOUT_CMD:
124 	case SRB_CT_PTHRU_CMD:
125 	case SRB_MB_IOCB:
126 	case SRB_NACK_PLOGI:
127 	case SRB_NACK_PRLI:
128 	case SRB_NACK_LOGO:
129 	case SRB_CTRL_VP:
130 		sp->done(sp, QLA_FUNCTION_TIMEOUT);
131 		break;
132 	}
133 }
134 
135 static void
136 qla2x00_async_login_sp_done(void *ptr, int res)
137 {
138 	srb_t *sp = ptr;
139 	struct scsi_qla_host *vha = sp->vha;
140 	struct srb_iocb *lio = &sp->u.iocb_cmd;
141 	struct event_arg ea;
142 
143 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
144 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
145 
146 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
147 
148 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
149 		memset(&ea, 0, sizeof(ea));
150 		ea.event = FCME_PLOGI_DONE;
151 		ea.fcport = sp->fcport;
152 		ea.data[0] = lio->u.logio.data[0];
153 		ea.data[1] = lio->u.logio.data[1];
154 		ea.iop[0] = lio->u.logio.iop[0];
155 		ea.iop[1] = lio->u.logio.iop[1];
156 		ea.sp = sp;
157 		qla2x00_fcport_event_handler(vha, &ea);
158 	}
159 
160 	sp->free(sp);
161 }
162 
163 int
164 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
165     uint16_t *data)
166 {
167 	srb_t *sp;
168 	struct srb_iocb *lio;
169 	int rval = QLA_FUNCTION_FAILED;
170 
171 	if (!vha->flags.online)
172 		goto done;
173 
174 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
175 	if (!sp)
176 		goto done;
177 
178 	fcport->flags |= FCF_ASYNC_SENT;
179 	fcport->logout_completed = 0;
180 
181 	fcport->disc_state = DSC_LOGIN_PEND;
182 	sp->type = SRB_LOGIN_CMD;
183 	sp->name = "login";
184 	sp->gen1 = fcport->rscn_gen;
185 	sp->gen2 = fcport->login_gen;
186 
187 	lio = &sp->u.iocb_cmd;
188 	lio->timeout = qla2x00_async_iocb_timeout;
189 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
190 
191 	sp->done = qla2x00_async_login_sp_done;
192 	lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
193 
194 	if (fcport->fc4f_nvme)
195 		lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
196 
197 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
198 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
199 	rval = qla2x00_start_sp(sp);
200 	if (rval != QLA_SUCCESS) {
201 		fcport->flags |= FCF_LOGIN_NEEDED;
202 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
203 		goto done_free_sp;
204 	}
205 
206 	ql_dbg(ql_dbg_disc, vha, 0x2072,
207 	    "Async-login - %8phC hdl=%x, loopid=%x portid=%02x%02x%02x "
208 		"retries=%d.\n", fcport->port_name, sp->handle, fcport->loop_id,
209 	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
210 	    fcport->login_retry);
211 	return rval;
212 
213 done_free_sp:
214 	sp->free(sp);
215 	fcport->flags &= ~FCF_ASYNC_SENT;
216 done:
217 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
218 	return rval;
219 }
220 
221 static void
222 qla2x00_async_logout_sp_done(void *ptr, int res)
223 {
224 	srb_t *sp = ptr;
225 
226 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
227 	sp->fcport->login_gen++;
228 	qlt_logo_completion_handler(sp->fcport, res);
229 	sp->free(sp);
230 }
231 
232 int
233 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
234 {
235 	srb_t *sp;
236 	struct srb_iocb *lio;
237 	int rval = QLA_FUNCTION_FAILED;
238 
239 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
240 		return rval;
241 
242 	fcport->flags |= FCF_ASYNC_SENT;
243 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
244 	if (!sp)
245 		goto done;
246 
247 	sp->type = SRB_LOGOUT_CMD;
248 	sp->name = "logout";
249 
250 	lio = &sp->u.iocb_cmd;
251 	lio->timeout = qla2x00_async_iocb_timeout;
252 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
253 
254 	sp->done = qla2x00_async_logout_sp_done;
255 	rval = qla2x00_start_sp(sp);
256 	if (rval != QLA_SUCCESS)
257 		goto done_free_sp;
258 
259 	ql_dbg(ql_dbg_disc, vha, 0x2070,
260 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC.\n",
261 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
262 		fcport->d_id.b.area, fcport->d_id.b.al_pa,
263 		fcport->port_name);
264 	return rval;
265 
266 done_free_sp:
267 	sp->free(sp);
268 done:
269 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
270 	return rval;
271 }
272 
273 void
274 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
275     uint16_t *data)
276 {
277 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
278 	/* Don't re-login in target mode */
279 	if (!fcport->tgt_session)
280 		qla2x00_mark_device_lost(vha, fcport, 1, 0);
281 	qlt_logo_completion_handler(fcport, data[0]);
282 }
283 
284 static void
285 qla2x00_async_prlo_sp_done(void *s, int res)
286 {
287 	srb_t *sp = (srb_t *)s;
288 	struct srb_iocb *lio = &sp->u.iocb_cmd;
289 	struct scsi_qla_host *vha = sp->vha;
290 
291 	sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
292 	if (!test_bit(UNLOADING, &vha->dpc_flags))
293 		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
294 		    lio->u.logio.data);
295 	sp->free(sp);
296 }
297 
298 int
299 qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
300 {
301 	srb_t *sp;
302 	struct srb_iocb *lio;
303 	int rval;
304 
305 	rval = QLA_FUNCTION_FAILED;
306 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
307 	if (!sp)
308 		goto done;
309 
310 	sp->type = SRB_PRLO_CMD;
311 	sp->name = "prlo";
312 
313 	lio = &sp->u.iocb_cmd;
314 	lio->timeout = qla2x00_async_iocb_timeout;
315 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
316 
317 	sp->done = qla2x00_async_prlo_sp_done;
318 	rval = qla2x00_start_sp(sp);
319 	if (rval != QLA_SUCCESS)
320 		goto done_free_sp;
321 
322 	ql_dbg(ql_dbg_disc, vha, 0x2070,
323 	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
324 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
325 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
326 	return rval;
327 
328 done_free_sp:
329 	sp->free(sp);
330 done:
331 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
332 	return rval;
333 }
334 
335 static
336 void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
337 {
338 	struct fc_port *fcport = ea->fcport;
339 
340 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
341 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
342 	    __func__, fcport->port_name, fcport->disc_state,
343 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
344 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
345 
346 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
347 		ql_dbg(ql_dbg_disc, vha, 0x2066,
348 		    "%s %8phC: adisc fail: post delete\n",
349 		    __func__, ea->fcport->port_name);
350 		qlt_schedule_sess_for_deletion(ea->fcport);
351 		return;
352 	}
353 
354 	if (ea->fcport->disc_state == DSC_DELETE_PEND)
355 		return;
356 
357 	if (ea->sp->gen2 != ea->fcport->login_gen) {
358 		/* target side must have changed it. */
359 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
360 		    "%s %8phC generation changed\n",
361 		    __func__, ea->fcport->port_name);
362 		return;
363 	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
364 		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
365 		    __func__, __LINE__, ea->fcport->port_name);
366 		qla24xx_post_gidpn_work(vha, ea->fcport);
367 		return;
368 	}
369 
370 	__qla24xx_handle_gpdb_event(vha, ea);
371 }
372 
373 static void
374 qla2x00_async_adisc_sp_done(void *ptr, int res)
375 {
376 	srb_t *sp = ptr;
377 	struct scsi_qla_host *vha = sp->vha;
378 	struct event_arg ea;
379 	struct srb_iocb *lio = &sp->u.iocb_cmd;
380 
381 	ql_dbg(ql_dbg_disc, vha, 0x2066,
382 	    "Async done-%s res %x %8phC\n",
383 	    sp->name, res, sp->fcport->port_name);
384 
385 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
386 
387 	memset(&ea, 0, sizeof(ea));
388 	ea.event = FCME_ADISC_DONE;
389 	ea.rc = res;
390 	ea.data[0] = lio->u.logio.data[0];
391 	ea.data[1] = lio->u.logio.data[1];
392 	ea.iop[0] = lio->u.logio.iop[0];
393 	ea.iop[1] = lio->u.logio.iop[1];
394 	ea.fcport = sp->fcport;
395 	ea.sp = sp;
396 
397 	qla2x00_fcport_event_handler(vha, &ea);
398 
399 	sp->free(sp);
400 }
401 
402 int
403 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
404     uint16_t *data)
405 {
406 	srb_t *sp;
407 	struct srb_iocb *lio;
408 	int rval;
409 
410 	rval = QLA_FUNCTION_FAILED;
411 	fcport->flags |= FCF_ASYNC_SENT;
412 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
413 	if (!sp)
414 		goto done;
415 
416 	sp->type = SRB_ADISC_CMD;
417 	sp->name = "adisc";
418 
419 	lio = &sp->u.iocb_cmd;
420 	lio->timeout = qla2x00_async_iocb_timeout;
421 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
422 
423 	sp->done = qla2x00_async_adisc_sp_done;
424 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
425 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
426 	rval = qla2x00_start_sp(sp);
427 	if (rval != QLA_SUCCESS)
428 		goto done_free_sp;
429 
430 	ql_dbg(ql_dbg_disc, vha, 0x206f,
431 	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
432 	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
433 	return rval;
434 
435 done_free_sp:
436 	sp->free(sp);
437 done:
438 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
439 	qla2x00_post_async_adisc_work(vha, fcport, data);
440 	return rval;
441 }
442 
443 static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
444 	struct event_arg *ea)
445 {
446 	fc_port_t *fcport, *conflict_fcport;
447 	struct get_name_list_extended *e;
448 	u16 i, n, found = 0, loop_id;
449 	port_id_t id;
450 	u64 wwn;
451 	u16 data[2];
452 	u8 current_login_state;
453 
454 	fcport = ea->fcport;
455 	ql_dbg(ql_dbg_disc, vha, 0xffff,
456 	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d\n",
457 	    __func__, fcport->port_name, fcport->disc_state,
458 	    fcport->fw_login_state, ea->rc,
459 	    fcport->login_gen, fcport->last_login_gen,
460 	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id);
461 
462 	if (fcport->disc_state == DSC_DELETE_PEND)
463 		return;
464 
465 	if (ea->rc) { /* rval */
466 		if (fcport->login_retry == 0) {
467 			fcport->login_retry = vha->hw->login_retry_count;
468 			ql_dbg(ql_dbg_disc, vha, 0x20de,
469 			    "GNL failed Port login retry %8phN, retry cnt=%d.\n",
470 			    fcport->port_name, fcport->login_retry);
471 		}
472 		return;
473 	}
474 
475 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
476 		ql_dbg(ql_dbg_disc, vha, 0x20df,
477 		    "%s %8phC rscn gen changed rscn %d|%d \n",
478 		    __func__, fcport->port_name,
479 		    fcport->last_rscn_gen, fcport->rscn_gen);
480 		qla24xx_post_gidpn_work(vha, fcport);
481 		return;
482 	} else if (fcport->last_login_gen != fcport->login_gen) {
483 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
484 		    "%s %8phC login gen changed\n",
485 		    __func__, fcport->port_name);
486 		return;
487 	}
488 
489 	n = ea->data[0] / sizeof(struct get_name_list_extended);
490 
491 	ql_dbg(ql_dbg_disc, vha, 0x20e1,
492 	    "%s %d %8phC n %d %02x%02x%02x lid %d \n",
493 	    __func__, __LINE__, fcport->port_name, n,
494 	    fcport->d_id.b.domain, fcport->d_id.b.area,
495 	    fcport->d_id.b.al_pa, fcport->loop_id);
496 
497 	for (i = 0; i < n; i++) {
498 		e = &vha->gnl.l[i];
499 		wwn = wwn_to_u64(e->port_name);
500 
501 		if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
502 			continue;
503 
504 		found = 1;
505 		id.b.domain = e->port_id[2];
506 		id.b.area = e->port_id[1];
507 		id.b.al_pa = e->port_id[0];
508 		id.b.rsvd_1 = 0;
509 
510 		loop_id = le16_to_cpu(e->nport_handle);
511 		loop_id = (loop_id & 0x7fff);
512 
513 		ql_dbg(ql_dbg_disc, vha, 0x20e2,
514 		    "%s found %8phC CLS [%d|%d] ID[%02x%02x%02x|%02x%02x%02x] lid[%d|%d]\n",
515 		    __func__, fcport->port_name,
516 		    e->current_login_state, fcport->fw_login_state,
517 		    id.b.domain, id.b.area, id.b.al_pa,
518 		    fcport->d_id.b.domain, fcport->d_id.b.area,
519 		    fcport->d_id.b.al_pa, loop_id, fcport->loop_id);
520 
521 		if ((id.b24 != fcport->d_id.b24) ||
522 		    ((fcport->loop_id != FC_NO_LOOP_ID) &&
523 			(fcport->loop_id != loop_id))) {
524 			ql_dbg(ql_dbg_disc, vha, 0x20e3,
525 			    "%s %d %8phC post del sess\n",
526 			    __func__, __LINE__, fcport->port_name);
527 			qlt_schedule_sess_for_deletion(fcport);
528 			return;
529 		}
530 
531 		fcport->loop_id = loop_id;
532 
533 		wwn = wwn_to_u64(fcport->port_name);
534 		qlt_find_sess_invalidate_other(vha, wwn,
535 			id, loop_id, &conflict_fcport);
536 
537 		if (conflict_fcport) {
538 			/*
539 			 * Another share fcport share the same loop_id &
540 			 * nport id. Conflict fcport needs to finish
541 			 * cleanup before this fcport can proceed to login.
542 			 */
543 			conflict_fcport->conflict = fcport;
544 			fcport->login_pause = 1;
545 		}
546 
547 		if  (fcport->fc4f_nvme)
548 			current_login_state = e->current_login_state >> 4;
549 		else
550 			current_login_state = e->current_login_state & 0xf;
551 
552 		switch (current_login_state) {
553 		case DSC_LS_PRLI_COMP:
554 			ql_dbg(ql_dbg_disc, vha, 0x20e4,
555 			    "%s %d %8phC post gpdb\n",
556 			    __func__, __LINE__, fcport->port_name);
557 
558 			if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
559 				fcport->port_type = FCT_INITIATOR;
560 			else
561 				fcport->port_type = FCT_TARGET;
562 
563 			data[0] = data[1] = 0;
564 			qla2x00_post_async_adisc_work(vha, fcport, data);
565 			break;
566 		case DSC_LS_PORT_UNAVAIL:
567 		default:
568 			if (fcport->loop_id == FC_NO_LOOP_ID) {
569 				qla2x00_find_new_loop_id(vha, fcport);
570 				fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
571 			}
572 			ql_dbg(ql_dbg_disc, vha, 0x20e5,
573 			    "%s %d %8phC\n",
574 			    __func__, __LINE__, fcport->port_name);
575 			qla24xx_fcport_handle_login(vha, fcport);
576 			break;
577 		}
578 	}
579 
580 	if (!found) {
581 		/* fw has no record of this port */
582 		for (i = 0; i < n; i++) {
583 			e = &vha->gnl.l[i];
584 			id.b.domain = e->port_id[0];
585 			id.b.area = e->port_id[1];
586 			id.b.al_pa = e->port_id[2];
587 			id.b.rsvd_1 = 0;
588 			loop_id = le16_to_cpu(e->nport_handle);
589 
590 			if (fcport->d_id.b24 == id.b24) {
591 				conflict_fcport =
592 					qla2x00_find_fcport_by_wwpn(vha,
593 					    e->port_name, 0);
594 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
595 				    "%s %d %8phC post del sess\n",
596 				    __func__, __LINE__,
597 				    conflict_fcport->port_name);
598 				qlt_schedule_sess_for_deletion
599 					(conflict_fcport);
600 			}
601 
602 			/* FW already picked this loop id for another fcport */
603 			if (fcport->loop_id == loop_id)
604 				fcport->loop_id = FC_NO_LOOP_ID;
605 		}
606 		qla24xx_fcport_handle_login(vha, fcport);
607 	}
608 } /* gnl_event */
609 
610 static void
611 qla24xx_async_gnl_sp_done(void *s, int res)
612 {
613 	struct srb *sp = s;
614 	struct scsi_qla_host *vha = sp->vha;
615 	unsigned long flags;
616 	struct fc_port *fcport = NULL, *tf;
617 	u16 i, n = 0, loop_id;
618 	struct event_arg ea;
619 	struct get_name_list_extended *e;
620 	u64 wwn;
621 	struct list_head h;
622 	bool found = false;
623 
624 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
625 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
626 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
627 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
628 
629 	memset(&ea, 0, sizeof(ea));
630 	ea.sp = sp;
631 	ea.rc = res;
632 	ea.event = FCME_GNL_DONE;
633 
634 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
635 	    sizeof(struct get_name_list_extended)) {
636 		n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
637 		    sizeof(struct get_name_list_extended);
638 		ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
639 	}
640 
641 	for (i = 0; i < n; i++) {
642 		e = &vha->gnl.l[i];
643 		loop_id = le16_to_cpu(e->nport_handle);
644 		/* mask out reserve bit */
645 		loop_id = (loop_id & 0x7fff);
646 		set_bit(loop_id, vha->hw->loop_id_map);
647 		wwn = wwn_to_u64(e->port_name);
648 
649 		ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x20e8,
650 		    "%s %8phC %02x:%02x:%02x state %d/%d lid %x \n",
651 		    __func__, (void *)&wwn, e->port_id[2], e->port_id[1],
652 		    e->port_id[0], e->current_login_state, e->last_login_state,
653 		    (loop_id & 0x7fff));
654 	}
655 
656 	spin_lock_irqsave(&vha->gnl.fcports_lock, flags);
657 
658 	INIT_LIST_HEAD(&h);
659 	fcport = tf = NULL;
660 	if (!list_empty(&vha->gnl.fcports))
661 		list_splice_init(&vha->gnl.fcports, &h);
662 
663 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
664 		list_del_init(&fcport->gnl_entry);
665 		spin_lock(&vha->hw->tgt.sess_lock);
666 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
667 		spin_unlock(&vha->hw->tgt.sess_lock);
668 		ea.fcport = fcport;
669 
670 		qla2x00_fcport_event_handler(vha, &ea);
671 	}
672 	spin_unlock_irqrestore(&vha->gnl.fcports_lock, flags);
673 
674 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
675 	/* create new fcport if fw has knowledge of new sessions */
676 	for (i = 0; i < n; i++) {
677 		port_id_t id;
678 		u64 wwnn;
679 
680 		e = &vha->gnl.l[i];
681 		wwn = wwn_to_u64(e->port_name);
682 
683 		found = false;
684 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
685 			if (!memcmp((u8 *)&wwn, fcport->port_name,
686 			    WWN_SIZE)) {
687 				found = true;
688 				break;
689 			}
690 		}
691 
692 		id.b.domain = e->port_id[2];
693 		id.b.area = e->port_id[1];
694 		id.b.al_pa = e->port_id[0];
695 		id.b.rsvd_1 = 0;
696 
697 		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
698 			ql_dbg(ql_dbg_disc, vha, 0x2065,
699 			    "%s %d %8phC %06x post new sess\n",
700 			    __func__, __LINE__, (u8 *)&wwn, id.b24);
701 			wwnn = wwn_to_u64(e->node_name);
702 			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
703 			    (u8 *)&wwnn, NULL, FC4_TYPE_UNKNOWN);
704 		}
705 	}
706 
707 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
708 
709 	sp->free(sp);
710 }
711 
712 int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
713 {
714 	srb_t *sp;
715 	struct srb_iocb *mbx;
716 	int rval = QLA_FUNCTION_FAILED;
717 	unsigned long flags;
718 	u16 *mb;
719 
720 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
721 		return rval;
722 
723 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
724 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
725 
726 	spin_lock_irqsave(&vha->gnl.fcports_lock, flags);
727 	if (!list_empty(&fcport->gnl_entry)) {
728 		spin_unlock_irqrestore(&vha->gnl.fcports_lock, flags);
729 		rval = QLA_SUCCESS;
730 		goto done;
731 	}
732 
733 	spin_lock(&vha->hw->tgt.sess_lock);
734 	fcport->disc_state = DSC_GNL;
735 	fcport->last_rscn_gen = fcport->rscn_gen;
736 	fcport->last_login_gen = fcport->login_gen;
737 	spin_unlock(&vha->hw->tgt.sess_lock);
738 
739 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
740 	spin_unlock_irqrestore(&vha->gnl.fcports_lock, flags);
741 
742 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
743 	if (!sp)
744 		goto done;
745 
746 	fcport->flags |= FCF_ASYNC_SENT;
747 	sp->type = SRB_MB_IOCB;
748 	sp->name = "gnlist";
749 	sp->gen1 = fcport->rscn_gen;
750 	sp->gen2 = fcport->login_gen;
751 
752 	mbx = &sp->u.iocb_cmd;
753 	mbx->timeout = qla2x00_async_iocb_timeout;
754 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
755 
756 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
757 	mb[0] = MBC_PORT_NODE_NAME_LIST;
758 	mb[1] = BIT_2 | BIT_3;
759 	mb[2] = MSW(vha->gnl.ldma);
760 	mb[3] = LSW(vha->gnl.ldma);
761 	mb[6] = MSW(MSD(vha->gnl.ldma));
762 	mb[7] = LSW(MSD(vha->gnl.ldma));
763 	mb[8] = vha->gnl.size;
764 	mb[9] = vha->vp_idx;
765 
766 	sp->done = qla24xx_async_gnl_sp_done;
767 
768 	rval = qla2x00_start_sp(sp);
769 	if (rval != QLA_SUCCESS)
770 		goto done_free_sp;
771 
772 	ql_dbg(ql_dbg_disc, vha, 0x20da,
773 	    "Async-%s - OUT WWPN %8phC hndl %x\n",
774 	    sp->name, fcport->port_name, sp->handle);
775 
776 	return rval;
777 
778 done_free_sp:
779 	sp->free(sp);
780 	fcport->flags &= ~FCF_ASYNC_SENT;
781 done:
782 	return rval;
783 }
784 
785 int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
786 {
787 	struct qla_work_evt *e;
788 
789 	e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
790 	if (!e)
791 		return QLA_FUNCTION_FAILED;
792 
793 	e->u.fcport.fcport = fcport;
794 	fcport->flags |= FCF_ASYNC_ACTIVE;
795 	return qla2x00_post_work(vha, e);
796 }
797 
798 static
799 void qla24xx_async_gpdb_sp_done(void *s, int res)
800 {
801 	struct srb *sp = s;
802 	struct scsi_qla_host *vha = sp->vha;
803 	struct qla_hw_data *ha = vha->hw;
804 	fc_port_t *fcport = sp->fcport;
805 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
806 	struct event_arg ea;
807 
808 	ql_dbg(ql_dbg_disc, vha, 0x20db,
809 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
810 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
811 
812 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
813 
814 	memset(&ea, 0, sizeof(ea));
815 	ea.event = FCME_GPDB_DONE;
816 	ea.fcport = fcport;
817 	ea.sp = sp;
818 
819 	qla2x00_fcport_event_handler(vha, &ea);
820 
821 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
822 		sp->u.iocb_cmd.u.mbx.in_dma);
823 
824 	sp->free(sp);
825 }
826 
827 static int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
828 {
829 	struct qla_work_evt *e;
830 
831 	e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
832 	if (!e)
833 		return QLA_FUNCTION_FAILED;
834 
835 	e->u.fcport.fcport = fcport;
836 
837 	return qla2x00_post_work(vha, e);
838 }
839 
840 static void
841 qla2x00_async_prli_sp_done(void *ptr, int res)
842 {
843 	srb_t *sp = ptr;
844 	struct scsi_qla_host *vha = sp->vha;
845 	struct srb_iocb *lio = &sp->u.iocb_cmd;
846 	struct event_arg ea;
847 
848 	ql_dbg(ql_dbg_disc, vha, 0x2129,
849 	    "%s %8phC res %d \n", __func__,
850 	    sp->fcport->port_name, res);
851 
852 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
853 
854 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
855 		memset(&ea, 0, sizeof(ea));
856 		ea.event = FCME_PRLI_DONE;
857 		ea.fcport = sp->fcport;
858 		ea.data[0] = lio->u.logio.data[0];
859 		ea.data[1] = lio->u.logio.data[1];
860 		ea.iop[0] = lio->u.logio.iop[0];
861 		ea.iop[1] = lio->u.logio.iop[1];
862 		ea.sp = sp;
863 
864 		qla2x00_fcport_event_handler(vha, &ea);
865 	}
866 
867 	sp->free(sp);
868 }
869 
870 int
871 qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
872 {
873 	srb_t *sp;
874 	struct srb_iocb *lio;
875 	int rval = QLA_FUNCTION_FAILED;
876 
877 	if (!vha->flags.online)
878 		return rval;
879 
880 	if (fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
881 	    fcport->fw_login_state == DSC_LS_PRLI_PEND)
882 		return rval;
883 
884 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
885 	if (!sp)
886 		return rval;
887 
888 	fcport->flags |= FCF_ASYNC_SENT;
889 	fcport->logout_completed = 0;
890 
891 	sp->type = SRB_PRLI_CMD;
892 	sp->name = "prli";
893 
894 	lio = &sp->u.iocb_cmd;
895 	lio->timeout = qla2x00_async_iocb_timeout;
896 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
897 
898 	sp->done = qla2x00_async_prli_sp_done;
899 	lio->u.logio.flags = 0;
900 
901 	if  (fcport->fc4f_nvme)
902 		lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
903 
904 	rval = qla2x00_start_sp(sp);
905 	if (rval != QLA_SUCCESS) {
906 		fcport->flags |= FCF_LOGIN_NEEDED;
907 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
908 		goto done_free_sp;
909 	}
910 
911 	ql_dbg(ql_dbg_disc, vha, 0x211b,
912 	    "Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d.\n",
913 	    fcport->port_name, sp->handle, fcport->loop_id,
914 	    fcport->d_id.b24, fcport->login_retry);
915 
916 	return rval;
917 
918 done_free_sp:
919 	sp->free(sp);
920 	fcport->flags &= ~FCF_ASYNC_SENT;
921 	return rval;
922 }
923 
924 int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
925 {
926 	struct qla_work_evt *e;
927 
928 	e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
929 	if (!e)
930 		return QLA_FUNCTION_FAILED;
931 
932 	e->u.fcport.fcport = fcport;
933 	e->u.fcport.opt = opt;
934 	fcport->flags |= FCF_ASYNC_ACTIVE;
935 	return qla2x00_post_work(vha, e);
936 }
937 
938 int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
939 {
940 	srb_t *sp;
941 	struct srb_iocb *mbx;
942 	int rval = QLA_FUNCTION_FAILED;
943 	u16 *mb;
944 	dma_addr_t pd_dma;
945 	struct port_database_24xx *pd;
946 	struct qla_hw_data *ha = vha->hw;
947 
948 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
949 		return rval;
950 
951 	fcport->disc_state = DSC_GPDB;
952 
953 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
954 	if (!sp)
955 		goto done;
956 
957 	fcport->flags |= FCF_ASYNC_SENT;
958 	sp->type = SRB_MB_IOCB;
959 	sp->name = "gpdb";
960 	sp->gen1 = fcport->rscn_gen;
961 	sp->gen2 = fcport->login_gen;
962 
963 	mbx = &sp->u.iocb_cmd;
964 	mbx->timeout = qla2x00_async_iocb_timeout;
965 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
966 
967 	pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
968 	if (pd == NULL) {
969 		ql_log(ql_log_warn, vha, 0xd043,
970 		    "Failed to allocate port database structure.\n");
971 		goto done_free_sp;
972 	}
973 
974 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
975 	mb[0] = MBC_GET_PORT_DATABASE;
976 	mb[1] = fcport->loop_id;
977 	mb[2] = MSW(pd_dma);
978 	mb[3] = LSW(pd_dma);
979 	mb[6] = MSW(MSD(pd_dma));
980 	mb[7] = LSW(MSD(pd_dma));
981 	mb[9] = vha->vp_idx;
982 	mb[10] = opt;
983 
984 	mbx->u.mbx.in = (void *)pd;
985 	mbx->u.mbx.in_dma = pd_dma;
986 
987 	sp->done = qla24xx_async_gpdb_sp_done;
988 
989 	rval = qla2x00_start_sp(sp);
990 	if (rval != QLA_SUCCESS)
991 		goto done_free_sp;
992 
993 	ql_dbg(ql_dbg_disc, vha, 0x20dc,
994 	    "Async-%s %8phC hndl %x opt %x\n",
995 	    sp->name, fcport->port_name, sp->handle, opt);
996 
997 	return rval;
998 
999 done_free_sp:
1000 	if (pd)
1001 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
1002 
1003 	sp->free(sp);
1004 	fcport->flags &= ~FCF_ASYNC_SENT;
1005 done:
1006 	qla24xx_post_gpdb_work(vha, fcport, opt);
1007 	return rval;
1008 }
1009 
1010 static
1011 void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1012 {
1013 	unsigned long flags;
1014 
1015 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1016 	ea->fcport->login_gen++;
1017 	ea->fcport->deleted = 0;
1018 	ea->fcport->logout_on_delete = 1;
1019 
1020 	if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
1021 		vha->fcport_count++;
1022 		ea->fcport->login_succ = 1;
1023 
1024 		if (!IS_IIDMA_CAPABLE(vha->hw) ||
1025 		    !vha->hw->flags.gpsc_supported) {
1026 			ql_dbg(ql_dbg_disc, vha, 0x20d6,
1027 			    "%s %d %8phC post upd_fcport fcp_cnt %d\n",
1028 			    __func__, __LINE__,  ea->fcport->port_name,
1029 			    vha->fcport_count);
1030 
1031 			qla24xx_post_upd_fcport_work(vha, ea->fcport);
1032 		} else {
1033 			if (ea->fcport->id_changed) {
1034 				ea->fcport->id_changed = 0;
1035 				ql_dbg(ql_dbg_disc, vha, 0x20d7,
1036 				    "%s %d %8phC post gfpnid fcp_cnt %d\n",
1037 				    __func__, __LINE__, ea->fcport->port_name,
1038 				    vha->fcport_count);
1039 				qla24xx_post_gfpnid_work(vha, ea->fcport);
1040 			} else {
1041 				ql_dbg(ql_dbg_disc, vha, 0x20d7,
1042 				    "%s %d %8phC post gpsc fcp_cnt %d\n",
1043 				    __func__, __LINE__, ea->fcport->port_name,
1044 				    vha->fcport_count);
1045 				qla24xx_post_gpsc_work(vha, ea->fcport);
1046 			}
1047 		}
1048 	} else if (ea->fcport->login_succ) {
1049 		/*
1050 		 * We have an existing session. A late RSCN delivery
1051 		 * must have triggered the session to be re-validate.
1052 		 * Session is still valid.
1053 		 */
1054 		ql_dbg(ql_dbg_disc, vha, 0x20d6,
1055 		    "%s %d %8phC session revalidate success\n",
1056 		    __func__, __LINE__, ea->fcport->port_name);
1057 		ea->fcport->disc_state = DSC_LOGIN_COMPLETE;
1058 	}
1059 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1060 }
1061 
1062 static
1063 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1064 {
1065 	fc_port_t *fcport = ea->fcport;
1066 	struct port_database_24xx *pd;
1067 	struct srb *sp = ea->sp;
1068 	uint8_t	ls;
1069 
1070 	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
1071 
1072 	fcport->flags &= ~FCF_ASYNC_SENT;
1073 
1074 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
1075 	    "%s %8phC DS %d LS %d rc %d\n", __func__, fcport->port_name,
1076 	    fcport->disc_state, pd->current_login_state, ea->rc);
1077 
1078 	if (fcport->disc_state == DSC_DELETE_PEND)
1079 		return;
1080 
1081 	if (fcport->fc4f_nvme)
1082 		ls = pd->current_login_state >> 4;
1083 	else
1084 		ls = pd->current_login_state & 0xf;
1085 
1086 	switch (ls) {
1087 	case PDS_PRLI_COMPLETE:
1088 		__qla24xx_parse_gpdb(vha, fcport, pd);
1089 		break;
1090 	case PDS_PLOGI_PENDING:
1091 	case PDS_PLOGI_COMPLETE:
1092 	case PDS_PRLI_PENDING:
1093 	case PDS_PRLI2_PENDING:
1094 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC relogin needed\n",
1095 		    __func__, __LINE__, fcport->port_name);
1096 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1097 		return;
1098 	case PDS_LOGO_PENDING:
1099 	case PDS_PORT_UNAVAILABLE:
1100 	default:
1101 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
1102 		    __func__, __LINE__, fcport->port_name);
1103 		qlt_schedule_sess_for_deletion(fcport);
1104 		return;
1105 	}
1106 	__qla24xx_handle_gpdb_event(vha, ea);
1107 } /* gpdb event */
1108 
1109 static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1110 {
1111 	u8 login = 0;
1112 	int rc;
1113 
1114 	if (qla_tgt_mode_enabled(vha))
1115 		return;
1116 
1117 	if (qla_dual_mode_enabled(vha)) {
1118 		if (N2N_TOPO(vha->hw)) {
1119 			u64 mywwn, wwn;
1120 
1121 			mywwn = wwn_to_u64(vha->port_name);
1122 			wwn = wwn_to_u64(fcport->port_name);
1123 			if (mywwn > wwn)
1124 				login = 1;
1125 			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1126 			    && time_after_eq(jiffies,
1127 				    fcport->plogi_nack_done_deadline))
1128 				login = 1;
1129 		} else {
1130 			login = 1;
1131 		}
1132 	} else {
1133 		/* initiator mode */
1134 		login = 1;
1135 	}
1136 
1137 	if (login) {
1138 		if (fcport->loop_id == FC_NO_LOOP_ID) {
1139 			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
1140 			rc = qla2x00_find_new_loop_id(vha, fcport);
1141 			if (rc) {
1142 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
1143 				    "%s %d %8phC post del sess - out of loopid\n",
1144 				    __func__, __LINE__, fcport->port_name);
1145 				fcport->scan_state = 0;
1146 				qlt_schedule_sess_for_deletion(fcport);
1147 				return;
1148 			}
1149 		}
1150 		ql_dbg(ql_dbg_disc, vha, 0x20bf,
1151 		    "%s %d %8phC post login\n",
1152 		    __func__, __LINE__, fcport->port_name);
1153 		qla2x00_post_async_login_work(vha, fcport, NULL);
1154 	}
1155 }
1156 
1157 int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1158 {
1159 	u16 data[2];
1160 	u64 wwn;
1161 
1162 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
1163 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d retry %d lid %d scan %d\n",
1164 	    __func__, fcport->port_name, fcport->disc_state,
1165 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
1166 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
1167 	    fcport->login_gen, fcport->login_retry,
1168 	    fcport->loop_id, fcport->scan_state);
1169 
1170 	if (fcport->login_retry == 0)
1171 		return 0;
1172 
1173 	if (fcport->scan_state != QLA_FCPORT_FOUND)
1174 		return 0;
1175 
1176 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
1177 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1178 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
1179 		return 0;
1180 
1181 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
1182 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1183 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1184 			return 0;
1185 		}
1186 	}
1187 
1188 	/* for pure Target Mode. Login will not be initiated */
1189 	if (vha->host->active_mode == MODE_TARGET)
1190 		return 0;
1191 
1192 	if (fcport->flags & FCF_ASYNC_SENT) {
1193 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1194 		return 0;
1195 	}
1196 
1197 	fcport->login_retry--;
1198 
1199 	switch (fcport->disc_state) {
1200 	case DSC_DELETED:
1201 		wwn = wwn_to_u64(fcport->node_name);
1202 		if (wwn == 0) {
1203 			ql_dbg(ql_dbg_disc, vha, 0xffff,
1204 			    "%s %d %8phC post GNNID\n",
1205 			    __func__, __LINE__, fcport->port_name);
1206 			qla24xx_post_gnnid_work(vha, fcport);
1207 		} else if (fcport->loop_id == FC_NO_LOOP_ID) {
1208 			ql_dbg(ql_dbg_disc, vha, 0x20bd,
1209 			    "%s %d %8phC post gnl\n",
1210 			    __func__, __LINE__, fcport->port_name);
1211 			qla24xx_post_gnl_work(vha, fcport);
1212 		} else {
1213 			qla_chk_n2n_b4_login(vha, fcport);
1214 		}
1215 		break;
1216 
1217 	case DSC_GNL:
1218 		if (fcport->login_pause) {
1219 			fcport->last_rscn_gen = fcport->rscn_gen;
1220 			fcport->last_login_gen = fcport->login_gen;
1221 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1222 			break;
1223 		}
1224 
1225 		qla_chk_n2n_b4_login(vha, fcport);
1226 		break;
1227 
1228 	case DSC_LOGIN_FAILED:
1229 		ql_dbg(ql_dbg_disc, vha, 0x20d0,
1230 		    "%s %d %8phC post gidpn\n",
1231 		    __func__, __LINE__, fcport->port_name);
1232 		if (N2N_TOPO(vha->hw))
1233 			qla_chk_n2n_b4_login(vha, fcport);
1234 		else
1235 			qla24xx_post_gidpn_work(vha, fcport);
1236 		break;
1237 
1238 	case DSC_LOGIN_COMPLETE:
1239 		/* recheck login state */
1240 		ql_dbg(ql_dbg_disc, vha, 0x20d1,
1241 		    "%s %d %8phC post adisc\n",
1242 		    __func__, __LINE__, fcport->port_name);
1243 		data[0] = data[1] = 0;
1244 		qla2x00_post_async_adisc_work(vha, fcport, data);
1245 		break;
1246 
1247 	case DSC_LOGIN_PEND:
1248 		if (fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1249 			qla24xx_post_prli_work(vha, fcport);
1250 		break;
1251 
1252 	default:
1253 		break;
1254 	}
1255 
1256 	return 0;
1257 }
1258 
1259 static
1260 void qla24xx_handle_rscn_event(fc_port_t *fcport, struct event_arg *ea)
1261 {
1262 	fcport->rscn_gen++;
1263 
1264 	ql_dbg(ql_dbg_disc, fcport->vha, 0x210c,
1265 	    "%s %8phC DS %d LS %d\n",
1266 	    __func__, fcport->port_name, fcport->disc_state,
1267 	    fcport->fw_login_state);
1268 
1269 	if (fcport->flags & FCF_ASYNC_SENT)
1270 		return;
1271 
1272 	switch (fcport->disc_state) {
1273 	case DSC_DELETED:
1274 	case DSC_LOGIN_COMPLETE:
1275 		qla24xx_post_gpnid_work(fcport->vha, &ea->id);
1276 		break;
1277 	default:
1278 		break;
1279 	}
1280 }
1281 
1282 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
1283     u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
1284 {
1285 	struct qla_work_evt *e;
1286 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
1287 	if (!e)
1288 		return QLA_FUNCTION_FAILED;
1289 
1290 	e->u.new_sess.id = *id;
1291 	e->u.new_sess.pla = pla;
1292 	e->u.new_sess.fc4_type = fc4_type;
1293 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
1294 	if (node_name)
1295 		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
1296 
1297 	return qla2x00_post_work(vha, e);
1298 }
1299 
1300 static
1301 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
1302 	struct event_arg *ea)
1303 {
1304 	fc_port_t *fcport = ea->fcport;
1305 
1306 	ql_dbg(ql_dbg_disc, vha, 0x2102,
1307 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
1308 	    __func__, fcport->port_name, fcport->disc_state,
1309 	    fcport->fw_login_state, fcport->login_pause,
1310 	    fcport->deleted, fcport->conflict,
1311 	    fcport->last_rscn_gen, fcport->rscn_gen,
1312 	    fcport->last_login_gen, fcport->login_gen,
1313 	    fcport->flags);
1314 
1315 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1316 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND))
1317 		return;
1318 
1319 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
1320 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1321 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1322 			return;
1323 		}
1324 	}
1325 
1326 	if (fcport->flags & FCF_ASYNC_SENT) {
1327 		fcport->login_retry++;
1328 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1329 		return;
1330 	}
1331 
1332 	if (fcport->disc_state == DSC_DELETE_PEND) {
1333 		fcport->login_retry++;
1334 		return;
1335 	}
1336 
1337 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
1338 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gidpn\n",
1339 		    __func__, __LINE__, fcport->port_name);
1340 
1341 		qla24xx_post_gidpn_work(vha, fcport);
1342 		return;
1343 	}
1344 
1345 	qla24xx_fcport_handle_login(vha, fcport);
1346 }
1347 
1348 void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
1349 {
1350 	fc_port_t *f, *tf;
1351 	uint32_t id = 0, mask, rid;
1352 	unsigned long flags;
1353 
1354 	switch (ea->event) {
1355 	case FCME_RSCN:
1356 	case FCME_GIDPN_DONE:
1357 	case FCME_GPSC_DONE:
1358 	case FCME_GPNID_DONE:
1359 	case FCME_GNNID_DONE:
1360 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
1361 		    test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
1362 			return;
1363 		break;
1364 	default:
1365 		break;
1366 	}
1367 
1368 	switch (ea->event) {
1369 	case FCME_RELOGIN:
1370 		if (test_bit(UNLOADING, &vha->dpc_flags))
1371 			return;
1372 
1373 		qla24xx_handle_relogin_event(vha, ea);
1374 		break;
1375 	case FCME_RSCN:
1376 		if (test_bit(UNLOADING, &vha->dpc_flags))
1377 			return;
1378 		switch (ea->id.b.rsvd_1) {
1379 		case RSCN_PORT_ADDR:
1380 			spin_lock_irqsave(&vha->work_lock, flags);
1381 			if (vha->scan.scan_flags == 0) {
1382 				ql_dbg(ql_dbg_disc, vha, 0xffff,
1383 				    "%s: schedule\n", __func__);
1384 				vha->scan.scan_flags |= SF_QUEUED;
1385 				schedule_delayed_work(&vha->scan.scan_work, 5);
1386 			}
1387 			spin_unlock_irqrestore(&vha->work_lock, flags);
1388 
1389 			break;
1390 		case RSCN_AREA_ADDR:
1391 		case RSCN_DOM_ADDR:
1392 			if (ea->id.b.rsvd_1 == RSCN_AREA_ADDR) {
1393 				mask = 0xffff00;
1394 				ql_dbg(ql_dbg_async, vha, 0x5044,
1395 				    "RSCN: Area 0x%06x was affected\n",
1396 				    ea->id.b24);
1397 			} else {
1398 				mask = 0xff0000;
1399 				ql_dbg(ql_dbg_async, vha, 0x507a,
1400 				    "RSCN: Domain 0x%06x was affected\n",
1401 				    ea->id.b24);
1402 			}
1403 
1404 			rid = ea->id.b24 & mask;
1405 			list_for_each_entry_safe(f, tf, &vha->vp_fcports,
1406 			    list) {
1407 				id = f->d_id.b24 & mask;
1408 				if (rid == id) {
1409 					ea->fcport = f;
1410 					qla24xx_handle_rscn_event(f, ea);
1411 				}
1412 			}
1413 			break;
1414 		case RSCN_FAB_ADDR:
1415 		default:
1416 			ql_log(ql_log_warn, vha, 0xd045,
1417 			    "RSCN: Fabric was affected. Addr format %d\n",
1418 			    ea->id.b.rsvd_1);
1419 			qla2x00_mark_all_devices_lost(vha, 1);
1420 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1421 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1422 		}
1423 		break;
1424 	case FCME_GIDPN_DONE:
1425 		qla24xx_handle_gidpn_event(vha, ea);
1426 		break;
1427 	case FCME_GNL_DONE:
1428 		qla24xx_handle_gnl_done_event(vha, ea);
1429 		break;
1430 	case FCME_GPSC_DONE:
1431 		qla24xx_handle_gpsc_event(vha, ea);
1432 		break;
1433 	case FCME_PLOGI_DONE:	/* Initiator side sent LLIOCB */
1434 		qla24xx_handle_plogi_done_event(vha, ea);
1435 		break;
1436 	case FCME_PRLI_DONE:
1437 		qla24xx_handle_prli_done_event(vha, ea);
1438 		break;
1439 	case FCME_GPDB_DONE:
1440 		qla24xx_handle_gpdb_event(vha, ea);
1441 		break;
1442 	case FCME_GPNID_DONE:
1443 		qla24xx_handle_gpnid_event(vha, ea);
1444 		break;
1445 	case FCME_GFFID_DONE:
1446 		qla24xx_handle_gffid_event(vha, ea);
1447 		break;
1448 	case FCME_ADISC_DONE:
1449 		qla24xx_handle_adisc_event(vha, ea);
1450 		break;
1451 	case FCME_GNNID_DONE:
1452 		qla24xx_handle_gnnid_event(vha, ea);
1453 		break;
1454 	case FCME_GFPNID_DONE:
1455 		qla24xx_handle_gfpnid_event(vha, ea);
1456 		break;
1457 	default:
1458 		BUG_ON(1);
1459 		break;
1460 	}
1461 }
1462 
1463 static void
1464 qla2x00_tmf_iocb_timeout(void *data)
1465 {
1466 	srb_t *sp = data;
1467 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1468 
1469 	tmf->u.tmf.comp_status = CS_TIMEOUT;
1470 	complete(&tmf->u.tmf.comp);
1471 }
1472 
1473 static void
1474 qla2x00_tmf_sp_done(void *ptr, int res)
1475 {
1476 	srb_t *sp = ptr;
1477 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1478 
1479 	complete(&tmf->u.tmf.comp);
1480 }
1481 
1482 int
1483 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
1484 	uint32_t tag)
1485 {
1486 	struct scsi_qla_host *vha = fcport->vha;
1487 	struct srb_iocb *tm_iocb;
1488 	srb_t *sp;
1489 	int rval = QLA_FUNCTION_FAILED;
1490 
1491 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1492 	if (!sp)
1493 		goto done;
1494 
1495 	tm_iocb = &sp->u.iocb_cmd;
1496 	sp->type = SRB_TM_CMD;
1497 	sp->name = "tmf";
1498 
1499 	tm_iocb->timeout = qla2x00_tmf_iocb_timeout;
1500 	init_completion(&tm_iocb->u.tmf.comp);
1501 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
1502 
1503 	tm_iocb->u.tmf.flags = flags;
1504 	tm_iocb->u.tmf.lun = lun;
1505 	tm_iocb->u.tmf.data = tag;
1506 	sp->done = qla2x00_tmf_sp_done;
1507 
1508 	rval = qla2x00_start_sp(sp);
1509 	if (rval != QLA_SUCCESS)
1510 		goto done_free_sp;
1511 
1512 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
1513 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
1514 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
1515 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
1516 
1517 	wait_for_completion(&tm_iocb->u.tmf.comp);
1518 
1519 	rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
1520 	    QLA_SUCCESS : QLA_FUNCTION_FAILED;
1521 
1522 	if ((rval != QLA_SUCCESS) || tm_iocb->u.tmf.data) {
1523 		ql_dbg(ql_dbg_taskm, vha, 0x8030,
1524 		    "TM IOCB failed (%x).\n", rval);
1525 	}
1526 
1527 	if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
1528 		flags = tm_iocb->u.tmf.flags;
1529 		lun = (uint16_t)tm_iocb->u.tmf.lun;
1530 
1531 		/* Issue Marker IOCB */
1532 		qla2x00_marker(vha, vha->hw->req_q_map[0],
1533 		    vha->hw->rsp_q_map[0], sp->fcport->loop_id, lun,
1534 		    flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
1535 	}
1536 
1537 done_free_sp:
1538 	sp->free(sp);
1539 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
1540 done:
1541 	return rval;
1542 }
1543 
1544 static void
1545 qla24xx_abort_iocb_timeout(void *data)
1546 {
1547 	srb_t *sp = data;
1548 	struct srb_iocb *abt = &sp->u.iocb_cmd;
1549 
1550 	abt->u.abt.comp_status = CS_TIMEOUT;
1551 	complete(&abt->u.abt.comp);
1552 }
1553 
1554 static void
1555 qla24xx_abort_sp_done(void *ptr, int res)
1556 {
1557 	srb_t *sp = ptr;
1558 	struct srb_iocb *abt = &sp->u.iocb_cmd;
1559 
1560 	if (del_timer(&sp->u.iocb_cmd.timer))
1561 		complete(&abt->u.abt.comp);
1562 }
1563 
1564 int
1565 qla24xx_async_abort_cmd(srb_t *cmd_sp)
1566 {
1567 	scsi_qla_host_t *vha = cmd_sp->vha;
1568 	fc_port_t *fcport = cmd_sp->fcport;
1569 	struct srb_iocb *abt_iocb;
1570 	srb_t *sp;
1571 	int rval = QLA_FUNCTION_FAILED;
1572 
1573 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1574 	if (!sp)
1575 		goto done;
1576 
1577 	abt_iocb = &sp->u.iocb_cmd;
1578 	sp->type = SRB_ABT_CMD;
1579 	sp->name = "abort";
1580 
1581 	abt_iocb->timeout = qla24xx_abort_iocb_timeout;
1582 	init_completion(&abt_iocb->u.abt.comp);
1583 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
1584 
1585 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
1586 
1587 	if (vha->flags.qpairs_available && cmd_sp->qpair)
1588 		abt_iocb->u.abt.req_que_no =
1589 		    cpu_to_le16(cmd_sp->qpair->req->id);
1590 	else
1591 		abt_iocb->u.abt.req_que_no = cpu_to_le16(vha->req->id);
1592 
1593 	sp->done = qla24xx_abort_sp_done;
1594 
1595 	rval = qla2x00_start_sp(sp);
1596 	if (rval != QLA_SUCCESS)
1597 		goto done_free_sp;
1598 
1599 	ql_dbg(ql_dbg_async, vha, 0x507c,
1600 	    "Abort command issued - hdl=%x, target_id=%x\n",
1601 	    cmd_sp->handle, fcport->tgt_id);
1602 
1603 	wait_for_completion(&abt_iocb->u.abt.comp);
1604 
1605 	rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
1606 	    QLA_SUCCESS : QLA_FUNCTION_FAILED;
1607 
1608 done_free_sp:
1609 	sp->free(sp);
1610 done:
1611 	return rval;
1612 }
1613 
1614 int
1615 qla24xx_async_abort_command(srb_t *sp)
1616 {
1617 	unsigned long   flags = 0;
1618 
1619 	uint32_t	handle;
1620 	fc_port_t	*fcport = sp->fcport;
1621 	struct scsi_qla_host *vha = fcport->vha;
1622 	struct qla_hw_data *ha = vha->hw;
1623 	struct req_que *req = vha->req;
1624 
1625 	if (vha->flags.qpairs_available && sp->qpair)
1626 		req = sp->qpair->req;
1627 
1628 	spin_lock_irqsave(&ha->hardware_lock, flags);
1629 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
1630 		if (req->outstanding_cmds[handle] == sp)
1631 			break;
1632 	}
1633 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1634 	if (handle == req->num_outstanding_cmds) {
1635 		/* Command not found. */
1636 		return QLA_FUNCTION_FAILED;
1637 	}
1638 	if (sp->type == SRB_FXIOCB_DCMD)
1639 		return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1640 		    FXDISC_ABORT_IOCTL);
1641 
1642 	return qla24xx_async_abort_cmd(sp);
1643 }
1644 
1645 static void
1646 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1647 {
1648 	switch (ea->data[0]) {
1649 	case MBS_COMMAND_COMPLETE:
1650 		ql_dbg(ql_dbg_disc, vha, 0x2118,
1651 		    "%s %d %8phC post gpdb\n",
1652 		    __func__, __LINE__, ea->fcport->port_name);
1653 
1654 		ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
1655 		ea->fcport->logout_on_delete = 1;
1656 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1657 		break;
1658 	default:
1659 		if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) &&
1660 		    (ea->iop[1] == 0x50000)) {   /* reson 5=busy expl:0x0 */
1661 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1662 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
1663 			break;
1664 		}
1665 
1666 		if (ea->fcport->n2n_flag) {
1667 			ql_dbg(ql_dbg_disc, vha, 0x2118,
1668 				"%s %d %8phC post fc4 prli\n",
1669 				__func__, __LINE__, ea->fcport->port_name);
1670 			ea->fcport->fc4f_nvme = 0;
1671 			ea->fcport->n2n_flag = 0;
1672 			qla24xx_post_prli_work(vha, ea->fcport);
1673 		}
1674 		ql_dbg(ql_dbg_disc, vha, 0x2119,
1675 		    "%s %d %8phC unhandle event of %x\n",
1676 		    __func__, __LINE__, ea->fcport->port_name, ea->data[0]);
1677 		break;
1678 	}
1679 }
1680 
1681 static void
1682 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1683 {
1684 	port_id_t cid;	/* conflict Nport id */
1685 	u16 lid;
1686 	struct fc_port *conflict_fcport;
1687 	unsigned long flags;
1688 	struct fc_port *fcport = ea->fcport;
1689 
1690 	ql_dbg(ql_dbg_disc, vha, 0xffff,
1691 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
1692 	    __func__, fcport->port_name, fcport->disc_state,
1693 	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
1694 	    ea->sp->gen2, fcport->rscn_gen|ea->sp->gen1,
1695 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
1696 
1697 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1698 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
1699 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
1700 		    "%s %d %8phC Remote is trying to login\n",
1701 		    __func__, __LINE__, fcport->port_name);
1702 		return;
1703 	}
1704 
1705 	if (fcport->disc_state == DSC_DELETE_PEND)
1706 		return;
1707 
1708 	if (ea->sp->gen2 != fcport->login_gen) {
1709 		/* target side must have changed it. */
1710 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1711 		    "%s %8phC generation changed\n",
1712 		    __func__, fcport->port_name);
1713 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1714 		return;
1715 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1716 		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
1717 		    __func__, __LINE__, fcport->port_name);
1718 		qla24xx_post_gidpn_work(vha, fcport);
1719 		return;
1720 	}
1721 
1722 	switch (ea->data[0]) {
1723 	case MBS_COMMAND_COMPLETE:
1724 		/*
1725 		 * Driver must validate login state - If PRLI not complete,
1726 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
1727 		 * requests.
1728 		 */
1729 		if (ea->fcport->fc4f_nvme) {
1730 			ql_dbg(ql_dbg_disc, vha, 0x2117,
1731 				"%s %d %8phC post prli\n",
1732 				__func__, __LINE__, ea->fcport->port_name);
1733 			qla24xx_post_prli_work(vha, ea->fcport);
1734 		} else {
1735 			ql_dbg(ql_dbg_disc, vha, 0x20ea,
1736 			    "%s %d %8phC LoopID 0x%x in use with %06x. post gnl\n",
1737 			    __func__, __LINE__, ea->fcport->port_name,
1738 			    ea->fcport->loop_id, ea->fcport->d_id.b24);
1739 
1740 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
1741 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1742 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
1743 			ea->fcport->logout_on_delete = 1;
1744 			ea->fcport->send_els_logo = 0;
1745 			ea->fcport->fw_login_state = DSC_LS_PRLI_COMP;
1746 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1747 
1748 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1749 		}
1750 		break;
1751 	case MBS_COMMAND_ERROR:
1752 		ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
1753 		    __func__, __LINE__, ea->fcport->port_name, ea->data[1]);
1754 
1755 		ea->fcport->flags &= ~FCF_ASYNC_SENT;
1756 		ea->fcport->disc_state = DSC_LOGIN_FAILED;
1757 		if (ea->data[1] & QLA_LOGIO_LOGIN_RETRIED)
1758 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1759 		else
1760 			qla2x00_mark_device_lost(vha, ea->fcport, 1, 0);
1761 		break;
1762 	case MBS_LOOP_ID_USED:
1763 		/* data[1] = IO PARAM 1 = nport ID  */
1764 		cid.b.domain = (ea->iop[1] >> 16) & 0xff;
1765 		cid.b.area   = (ea->iop[1] >>  8) & 0xff;
1766 		cid.b.al_pa  = ea->iop[1] & 0xff;
1767 		cid.b.rsvd_1 = 0;
1768 
1769 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
1770 		    "%s %d %8phC LoopID 0x%x in use post gnl\n",
1771 		    __func__, __LINE__, ea->fcport->port_name,
1772 		    ea->fcport->loop_id);
1773 
1774 		if (IS_SW_RESV_ADDR(cid)) {
1775 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
1776 			ea->fcport->loop_id = FC_NO_LOOP_ID;
1777 		} else {
1778 			qla2x00_clear_loop_id(ea->fcport);
1779 		}
1780 		qla24xx_post_gnl_work(vha, ea->fcport);
1781 		break;
1782 	case MBS_PORT_ID_USED:
1783 		ql_dbg(ql_dbg_disc, vha, 0x20ed,
1784 		    "%s %d %8phC NPortId %02x%02x%02x inuse post gidpn\n",
1785 		    __func__, __LINE__, ea->fcport->port_name,
1786 		    ea->fcport->d_id.b.domain, ea->fcport->d_id.b.area,
1787 		    ea->fcport->d_id.b.al_pa);
1788 
1789 		lid = ea->iop[1] & 0xffff;
1790 		qlt_find_sess_invalidate_other(vha,
1791 		    wwn_to_u64(ea->fcport->port_name),
1792 		    ea->fcport->d_id, lid, &conflict_fcport);
1793 
1794 		if (conflict_fcport) {
1795 			/*
1796 			 * Another fcport share the same loop_id/nport id.
1797 			 * Conflict fcport needs to finish cleanup before this
1798 			 * fcport can proceed to login.
1799 			 */
1800 			conflict_fcport->conflict = ea->fcport;
1801 			ea->fcport->login_pause = 1;
1802 
1803 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
1804 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
1805 			    __func__, __LINE__, ea->fcport->port_name,
1806 			    ea->fcport->d_id.b24, lid);
1807 			qla2x00_clear_loop_id(ea->fcport);
1808 			qla24xx_post_gidpn_work(vha, ea->fcport);
1809 		} else {
1810 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
1811 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
1812 			    __func__, __LINE__, ea->fcport->port_name,
1813 			    ea->fcport->d_id.b24, lid);
1814 
1815 			qla2x00_clear_loop_id(ea->fcport);
1816 			set_bit(lid, vha->hw->loop_id_map);
1817 			ea->fcport->loop_id = lid;
1818 			ea->fcport->keep_nport_handle = 0;
1819 			qlt_schedule_sess_for_deletion(ea->fcport);
1820 		}
1821 		break;
1822 	}
1823 	return;
1824 }
1825 
1826 void
1827 qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
1828     uint16_t *data)
1829 {
1830 	qla2x00_mark_device_lost(vha, fcport, 1, 0);
1831 	qlt_logo_completion_handler(fcport, data[0]);
1832 	fcport->login_gen++;
1833 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
1834 	return;
1835 }
1836 
1837 void
1838 qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
1839     uint16_t *data)
1840 {
1841 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1842 	if (data[0] == MBS_COMMAND_COMPLETE) {
1843 		qla2x00_update_fcport(vha, fcport);
1844 
1845 		return;
1846 	}
1847 
1848 	/* Retry login. */
1849 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
1850 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1851 	else
1852 		qla2x00_mark_device_lost(vha, fcport, 1, 0);
1853 
1854 	return;
1855 }
1856 
1857 /****************************************************************************/
1858 /*                QLogic ISP2x00 Hardware Support Functions.                */
1859 /****************************************************************************/
1860 
1861 static int
1862 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
1863 {
1864 	int rval = QLA_SUCCESS;
1865 	struct qla_hw_data *ha = vha->hw;
1866 	uint32_t idc_major_ver, idc_minor_ver;
1867 	uint16_t config[4];
1868 
1869 	qla83xx_idc_lock(vha, 0);
1870 
1871 	/* SV: TODO: Assign initialization timeout from
1872 	 * flash-info / other param
1873 	 */
1874 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
1875 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
1876 
1877 	/* Set our fcoe function presence */
1878 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
1879 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
1880 		    "Error while setting DRV-Presence.\n");
1881 		rval = QLA_FUNCTION_FAILED;
1882 		goto exit;
1883 	}
1884 
1885 	/* Decide the reset ownership */
1886 	qla83xx_reset_ownership(vha);
1887 
1888 	/*
1889 	 * On first protocol driver load:
1890 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
1891 	 * register.
1892 	 * Others: Check compatibility with current IDC Major version.
1893 	 */
1894 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
1895 	if (ha->flags.nic_core_reset_owner) {
1896 		/* Set IDC Major version */
1897 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
1898 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
1899 
1900 		/* Clearing IDC-Lock-Recovery register */
1901 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
1902 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
1903 		/*
1904 		 * Clear further IDC participation if we are not compatible with
1905 		 * the current IDC Major Version.
1906 		 */
1907 		ql_log(ql_log_warn, vha, 0xb07d,
1908 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
1909 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
1910 		__qla83xx_clear_drv_presence(vha);
1911 		rval = QLA_FUNCTION_FAILED;
1912 		goto exit;
1913 	}
1914 	/* Each function sets its supported Minor version. */
1915 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
1916 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
1917 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
1918 
1919 	if (ha->flags.nic_core_reset_owner) {
1920 		memset(config, 0, sizeof(config));
1921 		if (!qla81xx_get_port_config(vha, config))
1922 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
1923 			    QLA8XXX_DEV_READY);
1924 	}
1925 
1926 	rval = qla83xx_idc_state_handler(vha);
1927 
1928 exit:
1929 	qla83xx_idc_unlock(vha, 0);
1930 
1931 	return rval;
1932 }
1933 
1934 /*
1935 * qla2x00_initialize_adapter
1936 *      Initialize board.
1937 *
1938 * Input:
1939 *      ha = adapter block pointer.
1940 *
1941 * Returns:
1942 *      0 = success
1943 */
1944 int
1945 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
1946 {
1947 	int	rval;
1948 	struct qla_hw_data *ha = vha->hw;
1949 	struct req_que *req = ha->req_q_map[0];
1950 
1951 	memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
1952 	memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
1953 
1954 	/* Clear adapter flags. */
1955 	vha->flags.online = 0;
1956 	ha->flags.chip_reset_done = 0;
1957 	vha->flags.reset_active = 0;
1958 	ha->flags.pci_channel_io_perm_failure = 0;
1959 	ha->flags.eeh_busy = 0;
1960 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
1961 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1962 	atomic_set(&vha->loop_state, LOOP_DOWN);
1963 	vha->device_flags = DFLG_NO_CABLE;
1964 	vha->dpc_flags = 0;
1965 	vha->flags.management_server_logged_in = 0;
1966 	vha->marker_needed = 0;
1967 	ha->isp_abort_cnt = 0;
1968 	ha->beacon_blink_led = 0;
1969 
1970 	set_bit(0, ha->req_qid_map);
1971 	set_bit(0, ha->rsp_qid_map);
1972 
1973 	ql_dbg(ql_dbg_init, vha, 0x0040,
1974 	    "Configuring PCI space...\n");
1975 	rval = ha->isp_ops->pci_config(vha);
1976 	if (rval) {
1977 		ql_log(ql_log_warn, vha, 0x0044,
1978 		    "Unable to configure PCI space.\n");
1979 		return (rval);
1980 	}
1981 
1982 	ha->isp_ops->reset_chip(vha);
1983 
1984 	rval = qla2xxx_get_flash_info(vha);
1985 	if (rval) {
1986 		ql_log(ql_log_fatal, vha, 0x004f,
1987 		    "Unable to validate FLASH data.\n");
1988 		return rval;
1989 	}
1990 
1991 	if (IS_QLA8044(ha)) {
1992 		qla8044_read_reset_template(vha);
1993 
1994 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
1995 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
1996 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
1997 		 * should honor the reset. */
1998 		if (ql2xdontresethba == 1)
1999 			qla8044_set_idc_dontreset(vha);
2000 	}
2001 
2002 	ha->isp_ops->get_flash_version(vha, req->ring);
2003 	ql_dbg(ql_dbg_init, vha, 0x0061,
2004 	    "Configure NVRAM parameters...\n");
2005 
2006 	ha->isp_ops->nvram_config(vha);
2007 
2008 	if (ha->flags.disable_serdes) {
2009 		/* Mask HBA via NVRAM settings? */
2010 		ql_log(ql_log_info, vha, 0x0077,
2011 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
2012 		return QLA_FUNCTION_FAILED;
2013 	}
2014 
2015 	ql_dbg(ql_dbg_init, vha, 0x0078,
2016 	    "Verifying loaded RISC code...\n");
2017 
2018 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
2019 		rval = ha->isp_ops->chip_diag(vha);
2020 		if (rval)
2021 			return (rval);
2022 		rval = qla2x00_setup_chip(vha);
2023 		if (rval)
2024 			return (rval);
2025 	}
2026 
2027 	if (IS_QLA84XX(ha)) {
2028 		ha->cs84xx = qla84xx_get_chip(vha);
2029 		if (!ha->cs84xx) {
2030 			ql_log(ql_log_warn, vha, 0x00d0,
2031 			    "Unable to configure ISP84XX.\n");
2032 			return QLA_FUNCTION_FAILED;
2033 		}
2034 	}
2035 
2036 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
2037 		rval = qla2x00_init_rings(vha);
2038 
2039 	ha->flags.chip_reset_done = 1;
2040 
2041 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
2042 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
2043 		rval = qla84xx_init_chip(vha);
2044 		if (rval != QLA_SUCCESS) {
2045 			ql_log(ql_log_warn, vha, 0x00d4,
2046 			    "Unable to initialize ISP84XX.\n");
2047 			qla84xx_put_chip(vha);
2048 		}
2049 	}
2050 
2051 	/* Load the NIC Core f/w if we are the first protocol driver. */
2052 	if (IS_QLA8031(ha)) {
2053 		rval = qla83xx_nic_core_fw_load(vha);
2054 		if (rval)
2055 			ql_log(ql_log_warn, vha, 0x0124,
2056 			    "Error in initializing NIC Core f/w.\n");
2057 	}
2058 
2059 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
2060 		qla24xx_read_fcp_prio_cfg(vha);
2061 
2062 	if (IS_P3P_TYPE(ha))
2063 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
2064 	else
2065 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
2066 
2067 	return (rval);
2068 }
2069 
2070 /**
2071  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
2072  * @vha: HA context
2073  *
2074  * Returns 0 on success.
2075  */
2076 int
2077 qla2100_pci_config(scsi_qla_host_t *vha)
2078 {
2079 	uint16_t w;
2080 	unsigned long flags;
2081 	struct qla_hw_data *ha = vha->hw;
2082 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2083 
2084 	pci_set_master(ha->pdev);
2085 	pci_try_set_mwi(ha->pdev);
2086 
2087 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2088 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2089 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2090 
2091 	pci_disable_rom(ha->pdev);
2092 
2093 	/* Get PCI bus information. */
2094 	spin_lock_irqsave(&ha->hardware_lock, flags);
2095 	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
2096 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2097 
2098 	return QLA_SUCCESS;
2099 }
2100 
2101 /**
2102  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
2103  * @vha: HA context
2104  *
2105  * Returns 0 on success.
2106  */
2107 int
2108 qla2300_pci_config(scsi_qla_host_t *vha)
2109 {
2110 	uint16_t	w;
2111 	unsigned long   flags = 0;
2112 	uint32_t	cnt;
2113 	struct qla_hw_data *ha = vha->hw;
2114 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2115 
2116 	pci_set_master(ha->pdev);
2117 	pci_try_set_mwi(ha->pdev);
2118 
2119 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2120 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2121 
2122 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
2123 		w &= ~PCI_COMMAND_INTX_DISABLE;
2124 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2125 
2126 	/*
2127 	 * If this is a 2300 card and not 2312, reset the
2128 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
2129 	 * the 2310 also reports itself as a 2300 so we need to get the
2130 	 * fb revision level -- a 6 indicates it really is a 2300 and
2131 	 * not a 2310.
2132 	 */
2133 	if (IS_QLA2300(ha)) {
2134 		spin_lock_irqsave(&ha->hardware_lock, flags);
2135 
2136 		/* Pause RISC. */
2137 		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
2138 		for (cnt = 0; cnt < 30000; cnt++) {
2139 			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
2140 				break;
2141 
2142 			udelay(10);
2143 		}
2144 
2145 		/* Select FPM registers. */
2146 		WRT_REG_WORD(&reg->ctrl_status, 0x20);
2147 		RD_REG_WORD(&reg->ctrl_status);
2148 
2149 		/* Get the fb rev level */
2150 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
2151 
2152 		if (ha->fb_rev == FPM_2300)
2153 			pci_clear_mwi(ha->pdev);
2154 
2155 		/* Deselect FPM registers. */
2156 		WRT_REG_WORD(&reg->ctrl_status, 0x0);
2157 		RD_REG_WORD(&reg->ctrl_status);
2158 
2159 		/* Release RISC module. */
2160 		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2161 		for (cnt = 0; cnt < 30000; cnt++) {
2162 			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
2163 				break;
2164 
2165 			udelay(10);
2166 		}
2167 
2168 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
2169 	}
2170 
2171 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2172 
2173 	pci_disable_rom(ha->pdev);
2174 
2175 	/* Get PCI bus information. */
2176 	spin_lock_irqsave(&ha->hardware_lock, flags);
2177 	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
2178 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2179 
2180 	return QLA_SUCCESS;
2181 }
2182 
2183 /**
2184  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
2185  * @vha: HA context
2186  *
2187  * Returns 0 on success.
2188  */
2189 int
2190 qla24xx_pci_config(scsi_qla_host_t *vha)
2191 {
2192 	uint16_t w;
2193 	unsigned long flags = 0;
2194 	struct qla_hw_data *ha = vha->hw;
2195 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2196 
2197 	pci_set_master(ha->pdev);
2198 	pci_try_set_mwi(ha->pdev);
2199 
2200 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2201 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2202 	w &= ~PCI_COMMAND_INTX_DISABLE;
2203 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2204 
2205 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2206 
2207 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
2208 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
2209 		pcix_set_mmrbc(ha->pdev, 2048);
2210 
2211 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2212 	if (pci_is_pcie(ha->pdev))
2213 		pcie_set_readrq(ha->pdev, 4096);
2214 
2215 	pci_disable_rom(ha->pdev);
2216 
2217 	ha->chip_revision = ha->pdev->revision;
2218 
2219 	/* Get PCI bus information. */
2220 	spin_lock_irqsave(&ha->hardware_lock, flags);
2221 	ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
2222 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2223 
2224 	return QLA_SUCCESS;
2225 }
2226 
2227 /**
2228  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
2229  * @vha: HA context
2230  *
2231  * Returns 0 on success.
2232  */
2233 int
2234 qla25xx_pci_config(scsi_qla_host_t *vha)
2235 {
2236 	uint16_t w;
2237 	struct qla_hw_data *ha = vha->hw;
2238 
2239 	pci_set_master(ha->pdev);
2240 	pci_try_set_mwi(ha->pdev);
2241 
2242 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2243 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2244 	w &= ~PCI_COMMAND_INTX_DISABLE;
2245 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2246 
2247 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2248 	if (pci_is_pcie(ha->pdev))
2249 		pcie_set_readrq(ha->pdev, 4096);
2250 
2251 	pci_disable_rom(ha->pdev);
2252 
2253 	ha->chip_revision = ha->pdev->revision;
2254 
2255 	return QLA_SUCCESS;
2256 }
2257 
2258 /**
2259  * qla2x00_isp_firmware() - Choose firmware image.
2260  * @vha: HA context
2261  *
2262  * Returns 0 on success.
2263  */
2264 static int
2265 qla2x00_isp_firmware(scsi_qla_host_t *vha)
2266 {
2267 	int  rval;
2268 	uint16_t loop_id, topo, sw_cap;
2269 	uint8_t domain, area, al_pa;
2270 	struct qla_hw_data *ha = vha->hw;
2271 
2272 	/* Assume loading risc code */
2273 	rval = QLA_FUNCTION_FAILED;
2274 
2275 	if (ha->flags.disable_risc_code_load) {
2276 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
2277 
2278 		/* Verify checksum of loaded RISC code. */
2279 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
2280 		if (rval == QLA_SUCCESS) {
2281 			/* And, verify we are not in ROM code. */
2282 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2283 			    &area, &domain, &topo, &sw_cap);
2284 		}
2285 	}
2286 
2287 	if (rval)
2288 		ql_dbg(ql_dbg_init, vha, 0x007a,
2289 		    "**** Load RISC code ****.\n");
2290 
2291 	return (rval);
2292 }
2293 
2294 /**
2295  * qla2x00_reset_chip() - Reset ISP chip.
2296  * @vha: HA context
2297  *
2298  * Returns 0 on success.
2299  */
2300 void
2301 qla2x00_reset_chip(scsi_qla_host_t *vha)
2302 {
2303 	unsigned long   flags = 0;
2304 	struct qla_hw_data *ha = vha->hw;
2305 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2306 	uint32_t	cnt;
2307 	uint16_t	cmd;
2308 
2309 	if (unlikely(pci_channel_offline(ha->pdev)))
2310 		return;
2311 
2312 	ha->isp_ops->disable_intrs(ha);
2313 
2314 	spin_lock_irqsave(&ha->hardware_lock, flags);
2315 
2316 	/* Turn off master enable */
2317 	cmd = 0;
2318 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
2319 	cmd &= ~PCI_COMMAND_MASTER;
2320 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2321 
2322 	if (!IS_QLA2100(ha)) {
2323 		/* Pause RISC. */
2324 		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
2325 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
2326 			for (cnt = 0; cnt < 30000; cnt++) {
2327 				if ((RD_REG_WORD(&reg->hccr) &
2328 				    HCCR_RISC_PAUSE) != 0)
2329 					break;
2330 				udelay(100);
2331 			}
2332 		} else {
2333 			RD_REG_WORD(&reg->hccr);	/* PCI Posting. */
2334 			udelay(10);
2335 		}
2336 
2337 		/* Select FPM registers. */
2338 		WRT_REG_WORD(&reg->ctrl_status, 0x20);
2339 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
2340 
2341 		/* FPM Soft Reset. */
2342 		WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
2343 		RD_REG_WORD(&reg->fpm_diag_config);	/* PCI Posting. */
2344 
2345 		/* Toggle Fpm Reset. */
2346 		if (!IS_QLA2200(ha)) {
2347 			WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
2348 			RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
2349 		}
2350 
2351 		/* Select frame buffer registers. */
2352 		WRT_REG_WORD(&reg->ctrl_status, 0x10);
2353 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
2354 
2355 		/* Reset frame buffer FIFOs. */
2356 		if (IS_QLA2200(ha)) {
2357 			WRT_FB_CMD_REG(ha, reg, 0xa000);
2358 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
2359 		} else {
2360 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
2361 
2362 			/* Read back fb_cmd until zero or 3 seconds max */
2363 			for (cnt = 0; cnt < 3000; cnt++) {
2364 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
2365 					break;
2366 				udelay(100);
2367 			}
2368 		}
2369 
2370 		/* Select RISC module registers. */
2371 		WRT_REG_WORD(&reg->ctrl_status, 0);
2372 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
2373 
2374 		/* Reset RISC processor. */
2375 		WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2376 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
2377 
2378 		/* Release RISC processor. */
2379 		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2380 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
2381 	}
2382 
2383 	WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
2384 	WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
2385 
2386 	/* Reset ISP chip. */
2387 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2388 
2389 	/* Wait for RISC to recover from reset. */
2390 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2391 		/*
2392 		 * It is necessary to for a delay here since the card doesn't
2393 		 * respond to PCI reads during a reset. On some architectures
2394 		 * this will result in an MCA.
2395 		 */
2396 		udelay(20);
2397 		for (cnt = 30000; cnt; cnt--) {
2398 			if ((RD_REG_WORD(&reg->ctrl_status) &
2399 			    CSR_ISP_SOFT_RESET) == 0)
2400 				break;
2401 			udelay(100);
2402 		}
2403 	} else
2404 		udelay(10);
2405 
2406 	/* Reset RISC processor. */
2407 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2408 
2409 	WRT_REG_WORD(&reg->semaphore, 0);
2410 
2411 	/* Release RISC processor. */
2412 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2413 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
2414 
2415 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2416 		for (cnt = 0; cnt < 30000; cnt++) {
2417 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
2418 				break;
2419 
2420 			udelay(100);
2421 		}
2422 	} else
2423 		udelay(100);
2424 
2425 	/* Turn on master enable */
2426 	cmd |= PCI_COMMAND_MASTER;
2427 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2428 
2429 	/* Disable RISC pause on FPM parity error. */
2430 	if (!IS_QLA2100(ha)) {
2431 		WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
2432 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
2433 	}
2434 
2435 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2436 }
2437 
2438 /**
2439  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
2440  * @vha: HA context
2441  *
2442  * Returns 0 on success.
2443  */
2444 static int
2445 qla81xx_reset_mpi(scsi_qla_host_t *vha)
2446 {
2447 	uint16_t mb[4] = {0x1010, 0, 1, 0};
2448 
2449 	if (!IS_QLA81XX(vha->hw))
2450 		return QLA_SUCCESS;
2451 
2452 	return qla81xx_write_mpi_register(vha, mb);
2453 }
2454 
2455 /**
2456  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
2457  * @vha: HA context
2458  *
2459  * Returns 0 on success.
2460  */
2461 static inline int
2462 qla24xx_reset_risc(scsi_qla_host_t *vha)
2463 {
2464 	unsigned long flags = 0;
2465 	struct qla_hw_data *ha = vha->hw;
2466 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2467 	uint32_t cnt;
2468 	uint16_t wd;
2469 	static int abts_cnt; /* ISP abort retry counts */
2470 	int rval = QLA_SUCCESS;
2471 
2472 	spin_lock_irqsave(&ha->hardware_lock, flags);
2473 
2474 	/* Reset RISC. */
2475 	WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2476 	for (cnt = 0; cnt < 30000; cnt++) {
2477 		if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
2478 			break;
2479 
2480 		udelay(10);
2481 	}
2482 
2483 	if (!(RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE))
2484 		set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
2485 
2486 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
2487 	    "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
2488 	    RD_REG_DWORD(&reg->hccr),
2489 	    RD_REG_DWORD(&reg->ctrl_status),
2490 	    (RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE));
2491 
2492 	WRT_REG_DWORD(&reg->ctrl_status,
2493 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2494 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
2495 
2496 	udelay(100);
2497 
2498 	/* Wait for firmware to complete NVRAM accesses. */
2499 	RD_REG_WORD(&reg->mailbox0);
2500 	for (cnt = 10000; RD_REG_WORD(&reg->mailbox0) != 0 &&
2501 	    rval == QLA_SUCCESS; cnt--) {
2502 		barrier();
2503 		if (cnt)
2504 			udelay(5);
2505 		else
2506 			rval = QLA_FUNCTION_TIMEOUT;
2507 	}
2508 
2509 	if (rval == QLA_SUCCESS)
2510 		set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
2511 
2512 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
2513 	    "HCCR: 0x%x, MailBox0 Status 0x%x\n",
2514 	    RD_REG_DWORD(&reg->hccr),
2515 	    RD_REG_DWORD(&reg->mailbox0));
2516 
2517 	/* Wait for soft-reset to complete. */
2518 	RD_REG_DWORD(&reg->ctrl_status);
2519 	for (cnt = 0; cnt < 60; cnt++) {
2520 		barrier();
2521 		if ((RD_REG_DWORD(&reg->ctrl_status) &
2522 		    CSRX_ISP_SOFT_RESET) == 0)
2523 			break;
2524 
2525 		udelay(5);
2526 	}
2527 	if (!(RD_REG_DWORD(&reg->ctrl_status) & CSRX_ISP_SOFT_RESET))
2528 		set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
2529 
2530 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
2531 	    "HCCR: 0x%x, Soft Reset status: 0x%x\n",
2532 	    RD_REG_DWORD(&reg->hccr),
2533 	    RD_REG_DWORD(&reg->ctrl_status));
2534 
2535 	/* If required, do an MPI FW reset now */
2536 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
2537 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
2538 			if (++abts_cnt < 5) {
2539 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2540 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
2541 			} else {
2542 				/*
2543 				 * We exhausted the ISP abort retries. We have to
2544 				 * set the board offline.
2545 				 */
2546 				abts_cnt = 0;
2547 				vha->flags.online = 0;
2548 			}
2549 		}
2550 	}
2551 
2552 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
2553 	RD_REG_DWORD(&reg->hccr);
2554 
2555 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
2556 	RD_REG_DWORD(&reg->hccr);
2557 
2558 	WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
2559 	RD_REG_DWORD(&reg->hccr);
2560 
2561 	RD_REG_WORD(&reg->mailbox0);
2562 	for (cnt = 60; RD_REG_WORD(&reg->mailbox0) != 0 &&
2563 	    rval == QLA_SUCCESS; cnt--) {
2564 		barrier();
2565 		if (cnt)
2566 			udelay(5);
2567 		else
2568 			rval = QLA_FUNCTION_TIMEOUT;
2569 	}
2570 	if (rval == QLA_SUCCESS)
2571 		set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
2572 
2573 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
2574 	    "Host Risc 0x%x, mailbox0 0x%x\n",
2575 	    RD_REG_DWORD(&reg->hccr),
2576 	     RD_REG_WORD(&reg->mailbox0));
2577 
2578 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2579 
2580 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
2581 	    "Driver in %s mode\n",
2582 	    IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
2583 
2584 	if (IS_NOPOLLING_TYPE(ha))
2585 		ha->isp_ops->enable_intrs(ha);
2586 
2587 	return rval;
2588 }
2589 
2590 static void
2591 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
2592 {
2593 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2594 
2595 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2596 	*data = RD_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET);
2597 
2598 }
2599 
2600 static void
2601 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
2602 {
2603 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2604 
2605 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2606 	WRT_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET, data);
2607 }
2608 
2609 static void
2610 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
2611 {
2612 	uint32_t wd32 = 0;
2613 	uint delta_msec = 100;
2614 	uint elapsed_msec = 0;
2615 	uint timeout_msec;
2616 	ulong n;
2617 
2618 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
2619 	    vha->hw->pdev->subsystem_device != 0x0240)
2620 		return;
2621 
2622 	WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
2623 	udelay(100);
2624 
2625 attempt:
2626 	timeout_msec = TIMEOUT_SEMAPHORE;
2627 	n = timeout_msec / delta_msec;
2628 	while (n--) {
2629 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
2630 		qla25xx_read_risc_sema_reg(vha, &wd32);
2631 		if (wd32 & RISC_SEMAPHORE)
2632 			break;
2633 		msleep(delta_msec);
2634 		elapsed_msec += delta_msec;
2635 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2636 			goto force;
2637 	}
2638 
2639 	if (!(wd32 & RISC_SEMAPHORE))
2640 		goto force;
2641 
2642 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
2643 		goto acquired;
2644 
2645 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
2646 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
2647 	n = timeout_msec / delta_msec;
2648 	while (n--) {
2649 		qla25xx_read_risc_sema_reg(vha, &wd32);
2650 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
2651 			break;
2652 		msleep(delta_msec);
2653 		elapsed_msec += delta_msec;
2654 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2655 			goto force;
2656 	}
2657 
2658 	if (wd32 & RISC_SEMAPHORE_FORCE)
2659 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
2660 
2661 	goto attempt;
2662 
2663 force:
2664 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
2665 
2666 acquired:
2667 	return;
2668 }
2669 
2670 /**
2671  * qla24xx_reset_chip() - Reset ISP24xx chip.
2672  * @vha: HA context
2673  *
2674  * Returns 0 on success.
2675  */
2676 void
2677 qla24xx_reset_chip(scsi_qla_host_t *vha)
2678 {
2679 	struct qla_hw_data *ha = vha->hw;
2680 
2681 	if (pci_channel_offline(ha->pdev) &&
2682 	    ha->flags.pci_channel_io_perm_failure) {
2683 		return;
2684 	}
2685 
2686 	ha->isp_ops->disable_intrs(ha);
2687 
2688 	qla25xx_manipulate_risc_semaphore(vha);
2689 
2690 	/* Perform RISC reset. */
2691 	qla24xx_reset_risc(vha);
2692 }
2693 
2694 /**
2695  * qla2x00_chip_diag() - Test chip for proper operation.
2696  * @vha: HA context
2697  *
2698  * Returns 0 on success.
2699  */
2700 int
2701 qla2x00_chip_diag(scsi_qla_host_t *vha)
2702 {
2703 	int		rval;
2704 	struct qla_hw_data *ha = vha->hw;
2705 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2706 	unsigned long	flags = 0;
2707 	uint16_t	data;
2708 	uint32_t	cnt;
2709 	uint16_t	mb[5];
2710 	struct req_que *req = ha->req_q_map[0];
2711 
2712 	/* Assume a failed state */
2713 	rval = QLA_FUNCTION_FAILED;
2714 
2715 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
2716 	       &reg->flash_address);
2717 
2718 	spin_lock_irqsave(&ha->hardware_lock, flags);
2719 
2720 	/* Reset ISP chip. */
2721 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2722 
2723 	/*
2724 	 * We need to have a delay here since the card will not respond while
2725 	 * in reset causing an MCA on some architectures.
2726 	 */
2727 	udelay(20);
2728 	data = qla2x00_debounce_register(&reg->ctrl_status);
2729 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
2730 		udelay(5);
2731 		data = RD_REG_WORD(&reg->ctrl_status);
2732 		barrier();
2733 	}
2734 
2735 	if (!cnt)
2736 		goto chip_diag_failed;
2737 
2738 	ql_dbg(ql_dbg_init, vha, 0x007c,
2739 	    "Reset register cleared by chip reset.\n");
2740 
2741 	/* Reset RISC processor. */
2742 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
2743 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
2744 
2745 	/* Workaround for QLA2312 PCI parity error */
2746 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2747 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
2748 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
2749 			udelay(5);
2750 			data = RD_MAILBOX_REG(ha, reg, 0);
2751 			barrier();
2752 		}
2753 	} else
2754 		udelay(10);
2755 
2756 	if (!cnt)
2757 		goto chip_diag_failed;
2758 
2759 	/* Check product ID of chip */
2760 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
2761 
2762 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
2763 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
2764 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
2765 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
2766 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
2767 	    mb[3] != PROD_ID_3) {
2768 		ql_log(ql_log_warn, vha, 0x0062,
2769 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
2770 		    mb[1], mb[2], mb[3]);
2771 
2772 		goto chip_diag_failed;
2773 	}
2774 	ha->product_id[0] = mb[1];
2775 	ha->product_id[1] = mb[2];
2776 	ha->product_id[2] = mb[3];
2777 	ha->product_id[3] = mb[4];
2778 
2779 	/* Adjust fw RISC transfer size */
2780 	if (req->length > 1024)
2781 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
2782 	else
2783 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
2784 		    req->length;
2785 
2786 	if (IS_QLA2200(ha) &&
2787 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
2788 		/* Limit firmware transfer size with a 2200A */
2789 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
2790 
2791 		ha->device_type |= DT_ISP2200A;
2792 		ha->fw_transfer_size = 128;
2793 	}
2794 
2795 	/* Wrap Incoming Mailboxes Test. */
2796 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2797 
2798 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
2799 	rval = qla2x00_mbx_reg_test(vha);
2800 	if (rval)
2801 		ql_log(ql_log_warn, vha, 0x0080,
2802 		    "Failed mailbox send register test.\n");
2803 	else
2804 		/* Flag a successful rval */
2805 		rval = QLA_SUCCESS;
2806 	spin_lock_irqsave(&ha->hardware_lock, flags);
2807 
2808 chip_diag_failed:
2809 	if (rval)
2810 		ql_log(ql_log_info, vha, 0x0081,
2811 		    "Chip diagnostics **** FAILED ****.\n");
2812 
2813 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2814 
2815 	return (rval);
2816 }
2817 
2818 /**
2819  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
2820  * @vha: HA context
2821  *
2822  * Returns 0 on success.
2823  */
2824 int
2825 qla24xx_chip_diag(scsi_qla_host_t *vha)
2826 {
2827 	int rval;
2828 	struct qla_hw_data *ha = vha->hw;
2829 	struct req_que *req = ha->req_q_map[0];
2830 
2831 	if (IS_P3P_TYPE(ha))
2832 		return QLA_SUCCESS;
2833 
2834 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
2835 
2836 	rval = qla2x00_mbx_reg_test(vha);
2837 	if (rval) {
2838 		ql_log(ql_log_warn, vha, 0x0082,
2839 		    "Failed mailbox send register test.\n");
2840 	} else {
2841 		/* Flag a successful rval */
2842 		rval = QLA_SUCCESS;
2843 	}
2844 
2845 	return rval;
2846 }
2847 
2848 static void
2849 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
2850 {
2851 	int rval;
2852 	dma_addr_t tc_dma;
2853 	void *tc;
2854 	struct qla_hw_data *ha = vha->hw;
2855 
2856 	if (ha->eft) {
2857 		ql_dbg(ql_dbg_init, vha, 0x00bd,
2858 		    "%s: Offload Mem is already allocated.\n",
2859 		    __func__);
2860 		return;
2861 	}
2862 
2863 	if (IS_FWI2_CAPABLE(ha)) {
2864 		/* Allocate memory for Fibre Channel Event Buffer. */
2865 		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2866 		    !IS_QLA27XX(ha))
2867 			goto try_eft;
2868 
2869 		if (ha->fce)
2870 			dma_free_coherent(&ha->pdev->dev,
2871 			    FCE_SIZE, ha->fce, ha->fce_dma);
2872 
2873 		/* Allocate memory for Fibre Channel Event Buffer. */
2874 		tc = dma_zalloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
2875 					 GFP_KERNEL);
2876 		if (!tc) {
2877 			ql_log(ql_log_warn, vha, 0x00be,
2878 			    "Unable to allocate (%d KB) for FCE.\n",
2879 			    FCE_SIZE / 1024);
2880 			goto try_eft;
2881 		}
2882 
2883 		rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
2884 		    ha->fce_mb, &ha->fce_bufs);
2885 		if (rval) {
2886 			ql_log(ql_log_warn, vha, 0x00bf,
2887 			    "Unable to initialize FCE (%d).\n", rval);
2888 			dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
2889 			    tc_dma);
2890 			ha->flags.fce_enabled = 0;
2891 			goto try_eft;
2892 		}
2893 		ql_dbg(ql_dbg_init, vha, 0x00c0,
2894 		    "Allocate (%d KB) for FCE...\n", FCE_SIZE / 1024);
2895 
2896 		ha->flags.fce_enabled = 1;
2897 		ha->fce_dma = tc_dma;
2898 		ha->fce = tc;
2899 
2900 try_eft:
2901 		if (ha->eft)
2902 			dma_free_coherent(&ha->pdev->dev,
2903 			    EFT_SIZE, ha->eft, ha->eft_dma);
2904 
2905 		/* Allocate memory for Extended Trace Buffer. */
2906 		tc = dma_zalloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
2907 					 GFP_KERNEL);
2908 		if (!tc) {
2909 			ql_log(ql_log_warn, vha, 0x00c1,
2910 			    "Unable to allocate (%d KB) for EFT.\n",
2911 			    EFT_SIZE / 1024);
2912 			goto eft_err;
2913 		}
2914 
2915 		rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
2916 		if (rval) {
2917 			ql_log(ql_log_warn, vha, 0x00c2,
2918 			    "Unable to initialize EFT (%d).\n", rval);
2919 			dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
2920 			    tc_dma);
2921 			goto eft_err;
2922 		}
2923 		ql_dbg(ql_dbg_init, vha, 0x00c3,
2924 		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
2925 
2926 		ha->eft_dma = tc_dma;
2927 		ha->eft = tc;
2928 	}
2929 
2930 eft_err:
2931 	return;
2932 }
2933 
2934 void
2935 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
2936 {
2937 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
2938 	    eft_size, fce_size, mq_size;
2939 	struct qla_hw_data *ha = vha->hw;
2940 	struct req_que *req = ha->req_q_map[0];
2941 	struct rsp_que *rsp = ha->rsp_q_map[0];
2942 	struct qla2xxx_fw_dump *fw_dump;
2943 
2944 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
2945 	req_q_size = rsp_q_size = 0;
2946 
2947 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2948 		fixed_size = sizeof(struct qla2100_fw_dump);
2949 	} else if (IS_QLA23XX(ha)) {
2950 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
2951 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
2952 		    sizeof(uint16_t);
2953 	} else if (IS_FWI2_CAPABLE(ha)) {
2954 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha))
2955 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
2956 		else if (IS_QLA81XX(ha))
2957 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
2958 		else if (IS_QLA25XX(ha))
2959 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
2960 		else
2961 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
2962 
2963 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
2964 		    sizeof(uint32_t);
2965 		if (ha->mqenable) {
2966 			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha))
2967 				mq_size = sizeof(struct qla2xxx_mq_chain);
2968 			/*
2969 			 * Allocate maximum buffer size for all queues.
2970 			 * Resizing must be done at end-of-dump processing.
2971 			 */
2972 			mq_size += ha->max_req_queues *
2973 			    (req->length * sizeof(request_t));
2974 			mq_size += ha->max_rsp_queues *
2975 			    (rsp->length * sizeof(response_t));
2976 		}
2977 		if (ha->tgt.atio_ring)
2978 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
2979 		/* Allocate memory for Fibre Channel Event Buffer. */
2980 		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2981 		    !IS_QLA27XX(ha))
2982 			goto try_eft;
2983 
2984 		fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
2985 try_eft:
2986 		ql_dbg(ql_dbg_init, vha, 0x00c3,
2987 		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
2988 		eft_size = EFT_SIZE;
2989 	}
2990 
2991 	if (IS_QLA27XX(ha)) {
2992 		if (!ha->fw_dump_template) {
2993 			ql_log(ql_log_warn, vha, 0x00ba,
2994 			    "Failed missing fwdump template\n");
2995 			return;
2996 		}
2997 		dump_size = qla27xx_fwdt_calculate_dump_size(vha);
2998 		ql_dbg(ql_dbg_init, vha, 0x00fa,
2999 		    "-> allocating fwdump (%x bytes)...\n", dump_size);
3000 		goto allocate;
3001 	}
3002 
3003 	req_q_size = req->length * sizeof(request_t);
3004 	rsp_q_size = rsp->length * sizeof(response_t);
3005 	dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3006 	dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + eft_size;
3007 	ha->chain_offset = dump_size;
3008 	dump_size += mq_size + fce_size;
3009 
3010 	if (ha->exchoffld_buf)
3011 		dump_size += sizeof(struct qla2xxx_offld_chain) +
3012 			ha->exchoffld_size;
3013 	if (ha->exlogin_buf)
3014 		dump_size += sizeof(struct qla2xxx_offld_chain) +
3015 			ha->exlogin_size;
3016 
3017 allocate:
3018 	if (!ha->fw_dump_len || dump_size != ha->fw_dump_len) {
3019 		fw_dump = vmalloc(dump_size);
3020 		if (!fw_dump) {
3021 			ql_log(ql_log_warn, vha, 0x00c4,
3022 			    "Unable to allocate (%d KB) for firmware dump.\n",
3023 			    dump_size / 1024);
3024 		} else {
3025 			if (ha->fw_dump)
3026 				vfree(ha->fw_dump);
3027 			ha->fw_dump = fw_dump;
3028 
3029 			ha->fw_dump_len = dump_size;
3030 			ql_dbg(ql_dbg_init, vha, 0x00c5,
3031 			    "Allocated (%d KB) for firmware dump.\n",
3032 			    dump_size / 1024);
3033 
3034 			if (IS_QLA27XX(ha))
3035 				return;
3036 
3037 			ha->fw_dump->signature[0] = 'Q';
3038 			ha->fw_dump->signature[1] = 'L';
3039 			ha->fw_dump->signature[2] = 'G';
3040 			ha->fw_dump->signature[3] = 'C';
3041 			ha->fw_dump->version = htonl(1);
3042 
3043 			ha->fw_dump->fixed_size = htonl(fixed_size);
3044 			ha->fw_dump->mem_size = htonl(mem_size);
3045 			ha->fw_dump->req_q_size = htonl(req_q_size);
3046 			ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3047 
3048 			ha->fw_dump->eft_size = htonl(eft_size);
3049 			ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
3050 			ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
3051 
3052 			ha->fw_dump->header_size =
3053 				htonl(offsetof(struct qla2xxx_fw_dump, isp));
3054 		}
3055 	}
3056 }
3057 
3058 static int
3059 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3060 {
3061 #define MPS_MASK	0xe0
3062 	int rval;
3063 	uint16_t dc;
3064 	uint32_t dw;
3065 
3066 	if (!IS_QLA81XX(vha->hw))
3067 		return QLA_SUCCESS;
3068 
3069 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3070 	if (rval != QLA_SUCCESS) {
3071 		ql_log(ql_log_warn, vha, 0x0105,
3072 		    "Unable to acquire semaphore.\n");
3073 		goto done;
3074 	}
3075 
3076 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3077 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3078 	if (rval != QLA_SUCCESS) {
3079 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3080 		goto done_release;
3081 	}
3082 
3083 	dc &= MPS_MASK;
3084 	if (dc == (dw & MPS_MASK))
3085 		goto done_release;
3086 
3087 	dw &= ~MPS_MASK;
3088 	dw |= dc;
3089 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3090 	if (rval != QLA_SUCCESS) {
3091 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3092 	}
3093 
3094 done_release:
3095 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3096 	if (rval != QLA_SUCCESS) {
3097 		ql_log(ql_log_warn, vha, 0x006d,
3098 		    "Unable to release semaphore.\n");
3099 	}
3100 
3101 done:
3102 	return rval;
3103 }
3104 
3105 int
3106 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3107 {
3108 	/* Don't try to reallocate the array */
3109 	if (req->outstanding_cmds)
3110 		return QLA_SUCCESS;
3111 
3112 	if (!IS_FWI2_CAPABLE(ha))
3113 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3114 	else {
3115 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3116 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3117 		else
3118 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3119 	}
3120 
3121 	req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
3122 	    req->num_outstanding_cmds, GFP_KERNEL);
3123 
3124 	if (!req->outstanding_cmds) {
3125 		/*
3126 		 * Try to allocate a minimal size just so we can get through
3127 		 * initialization.
3128 		 */
3129 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3130 		req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
3131 		    req->num_outstanding_cmds, GFP_KERNEL);
3132 
3133 		if (!req->outstanding_cmds) {
3134 			ql_log(ql_log_fatal, NULL, 0x0126,
3135 			    "Failed to allocate memory for "
3136 			    "outstanding_cmds for req_que %p.\n", req);
3137 			req->num_outstanding_cmds = 0;
3138 			return QLA_FUNCTION_FAILED;
3139 		}
3140 	}
3141 
3142 	return QLA_SUCCESS;
3143 }
3144 
3145 #define PRINT_FIELD(_field, _flag, _str) {		\
3146 	if (a0->_field & _flag) {\
3147 		if (p) {\
3148 			strcat(ptr, "|");\
3149 			ptr++;\
3150 			leftover--;\
3151 		} \
3152 		len = snprintf(ptr, leftover, "%s", _str);	\
3153 		p = 1;\
3154 		leftover -= len;\
3155 		ptr += len; \
3156 	} \
3157 }
3158 
3159 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3160 {
3161 #define STR_LEN 64
3162 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3163 	u8 str[STR_LEN], *ptr, p;
3164 	int leftover, len;
3165 
3166 	memset(str, 0, STR_LEN);
3167 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3168 	ql_dbg(ql_dbg_init, vha, 0x015a,
3169 	    "SFP MFG Name: %s\n", str);
3170 
3171 	memset(str, 0, STR_LEN);
3172 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3173 	ql_dbg(ql_dbg_init, vha, 0x015c,
3174 	    "SFP Part Name: %s\n", str);
3175 
3176 	/* media */
3177 	memset(str, 0, STR_LEN);
3178 	ptr = str;
3179 	leftover = STR_LEN;
3180 	p = len = 0;
3181 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3182 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3183 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3184 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3185 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3186 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3187 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3188 	ql_dbg(ql_dbg_init, vha, 0x0160,
3189 	    "SFP Media: %s\n", str);
3190 
3191 	/* link length */
3192 	memset(str, 0, STR_LEN);
3193 	ptr = str;
3194 	leftover = STR_LEN;
3195 	p = len = 0;
3196 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3197 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3198 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3199 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3200 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3201 	ql_dbg(ql_dbg_init, vha, 0x0196,
3202 	    "SFP Link Length: %s\n", str);
3203 
3204 	memset(str, 0, STR_LEN);
3205 	ptr = str;
3206 	leftover = STR_LEN;
3207 	p = len = 0;
3208 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3209 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3210 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3211 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3212 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3213 	ql_dbg(ql_dbg_init, vha, 0x016e,
3214 	    "SFP FC Link Tech: %s\n", str);
3215 
3216 	if (a0->length_km)
3217 		ql_dbg(ql_dbg_init, vha, 0x016f,
3218 		    "SFP Distant: %d km\n", a0->length_km);
3219 	if (a0->length_100m)
3220 		ql_dbg(ql_dbg_init, vha, 0x0170,
3221 		    "SFP Distant: %d m\n", a0->length_100m*100);
3222 	if (a0->length_50um_10m)
3223 		ql_dbg(ql_dbg_init, vha, 0x0189,
3224 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3225 	if (a0->length_62um_10m)
3226 		ql_dbg(ql_dbg_init, vha, 0x018a,
3227 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3228 	if (a0->length_om4_10m)
3229 		ql_dbg(ql_dbg_init, vha, 0x0194,
3230 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3231 	if (a0->length_om3_10m)
3232 		ql_dbg(ql_dbg_init, vha, 0x0195,
3233 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3234 }
3235 
3236 
3237 /*
3238  * Return Code:
3239  *   QLA_SUCCESS: no action
3240  *   QLA_INTERFACE_ERROR: SFP is not there.
3241  *   QLA_FUNCTION_FAILED: detected New SFP
3242  */
3243 int
3244 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3245 {
3246 	int rc = QLA_SUCCESS;
3247 	struct sff_8247_a0 *a;
3248 	struct qla_hw_data *ha = vha->hw;
3249 
3250 	if (!AUTO_DETECT_SFP_SUPPORT(vha))
3251 		goto out;
3252 
3253 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3254 	if (rc)
3255 		goto out;
3256 
3257 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3258 	qla2xxx_print_sfp_info(vha);
3259 
3260 	if (a->fc_ll_cc7 & FC_LL_VL || a->fc_ll_cc7 & FC_LL_L) {
3261 		/* long range */
3262 		ha->flags.detected_lr_sfp = 1;
3263 
3264 		if (a->length_km > 5 || a->length_100m > 50)
3265 			ha->long_range_distance = LR_DISTANCE_10K;
3266 		else
3267 			ha->long_range_distance = LR_DISTANCE_5K;
3268 
3269 		if (ha->flags.detected_lr_sfp != ha->flags.using_lr_setting)
3270 			ql_dbg(ql_dbg_async, vha, 0x507b,
3271 			    "Detected Long Range SFP.\n");
3272 	} else {
3273 		/* short range */
3274 		ha->flags.detected_lr_sfp = 0;
3275 		if (ha->flags.using_lr_setting)
3276 			ql_dbg(ql_dbg_async, vha, 0x5084,
3277 			    "Detected Short Range SFP.\n");
3278 	}
3279 
3280 	if (!vha->flags.init_done)
3281 		rc = QLA_SUCCESS;
3282 out:
3283 	return rc;
3284 }
3285 
3286 /**
3287  * qla2x00_setup_chip() - Load and start RISC firmware.
3288  * @vha: HA context
3289  *
3290  * Returns 0 on success.
3291  */
3292 static int
3293 qla2x00_setup_chip(scsi_qla_host_t *vha)
3294 {
3295 	int rval;
3296 	uint32_t srisc_address = 0;
3297 	struct qla_hw_data *ha = vha->hw;
3298 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3299 	unsigned long flags;
3300 	uint16_t fw_major_version;
3301 
3302 	if (IS_P3P_TYPE(ha)) {
3303 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3304 		if (rval == QLA_SUCCESS) {
3305 			qla2x00_stop_firmware(vha);
3306 			goto enable_82xx_npiv;
3307 		} else
3308 			goto failed;
3309 	}
3310 
3311 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3312 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3313 		spin_lock_irqsave(&ha->hardware_lock, flags);
3314 		WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
3315 		RD_REG_WORD(&reg->hccr);
3316 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3317 	}
3318 
3319 	qla81xx_mpi_sync(vha);
3320 
3321 	/* Load firmware sequences */
3322 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
3323 	if (rval == QLA_SUCCESS) {
3324 		ql_dbg(ql_dbg_init, vha, 0x00c9,
3325 		    "Verifying Checksum of loaded RISC code.\n");
3326 
3327 		rval = qla2x00_verify_checksum(vha, srisc_address);
3328 		if (rval == QLA_SUCCESS) {
3329 			/* Start firmware execution. */
3330 			ql_dbg(ql_dbg_init, vha, 0x00ca,
3331 			    "Starting firmware.\n");
3332 
3333 			if (ql2xexlogins)
3334 				ha->flags.exlogins_enabled = 1;
3335 
3336 			if (qla_is_exch_offld_enabled(vha))
3337 				ha->flags.exchoffld_enabled = 1;
3338 
3339 			rval = qla2x00_execute_fw(vha, srisc_address);
3340 			/* Retrieve firmware information. */
3341 			if (rval == QLA_SUCCESS) {
3342 				qla24xx_detect_sfp(vha);
3343 
3344 				rval = qla2x00_set_exlogins_buffer(vha);
3345 				if (rval != QLA_SUCCESS)
3346 					goto failed;
3347 
3348 				rval = qla2x00_set_exchoffld_buffer(vha);
3349 				if (rval != QLA_SUCCESS)
3350 					goto failed;
3351 
3352 enable_82xx_npiv:
3353 				fw_major_version = ha->fw_major_version;
3354 				if (IS_P3P_TYPE(ha))
3355 					qla82xx_check_md_needed(vha);
3356 				else
3357 					rval = qla2x00_get_fw_version(vha);
3358 				if (rval != QLA_SUCCESS)
3359 					goto failed;
3360 				ha->flags.npiv_supported = 0;
3361 				if (IS_QLA2XXX_MIDTYPE(ha) &&
3362 					 (ha->fw_attributes & BIT_2)) {
3363 					ha->flags.npiv_supported = 1;
3364 					if ((!ha->max_npiv_vports) ||
3365 					    ((ha->max_npiv_vports + 1) %
3366 					    MIN_MULTI_ID_FABRIC))
3367 						ha->max_npiv_vports =
3368 						    MIN_MULTI_ID_FABRIC - 1;
3369 				}
3370 				qla2x00_get_resource_cnts(vha);
3371 
3372 				/*
3373 				 * Allocate the array of outstanding commands
3374 				 * now that we know the firmware resources.
3375 				 */
3376 				rval = qla2x00_alloc_outstanding_cmds(ha,
3377 				    vha->req);
3378 				if (rval != QLA_SUCCESS)
3379 					goto failed;
3380 
3381 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
3382 					qla2x00_alloc_offload_mem(vha);
3383 
3384 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
3385 					qla2x00_alloc_fw_dump(vha);
3386 
3387 			} else {
3388 				goto failed;
3389 			}
3390 		} else {
3391 			ql_log(ql_log_fatal, vha, 0x00cd,
3392 			    "ISP Firmware failed checksum.\n");
3393 			goto failed;
3394 		}
3395 	} else
3396 		goto failed;
3397 
3398 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3399 		/* Enable proper parity. */
3400 		spin_lock_irqsave(&ha->hardware_lock, flags);
3401 		if (IS_QLA2300(ha))
3402 			/* SRAM parity */
3403 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
3404 		else
3405 			/* SRAM, Instruction RAM and GP RAM parity */
3406 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
3407 		RD_REG_WORD(&reg->hccr);
3408 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3409 	}
3410 
3411 	if (IS_QLA27XX(ha))
3412 		ha->flags.fac_supported = 1;
3413 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
3414 		uint32_t size;
3415 
3416 		rval = qla81xx_fac_get_sector_size(vha, &size);
3417 		if (rval == QLA_SUCCESS) {
3418 			ha->flags.fac_supported = 1;
3419 			ha->fdt_block_size = size << 2;
3420 		} else {
3421 			ql_log(ql_log_warn, vha, 0x00ce,
3422 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
3423 			    ha->fw_major_version, ha->fw_minor_version,
3424 			    ha->fw_subminor_version);
3425 
3426 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3427 				ha->flags.fac_supported = 0;
3428 				rval = QLA_SUCCESS;
3429 			}
3430 		}
3431 	}
3432 failed:
3433 	if (rval) {
3434 		ql_log(ql_log_fatal, vha, 0x00cf,
3435 		    "Setup chip ****FAILED****.\n");
3436 	}
3437 
3438 	return (rval);
3439 }
3440 
3441 /**
3442  * qla2x00_init_response_q_entries() - Initializes response queue entries.
3443  * @rsp: response queue
3444  *
3445  * Beginning of request ring has initialization control block already built
3446  * by nvram config routine.
3447  *
3448  * Returns 0 on success.
3449  */
3450 void
3451 qla2x00_init_response_q_entries(struct rsp_que *rsp)
3452 {
3453 	uint16_t cnt;
3454 	response_t *pkt;
3455 
3456 	rsp->ring_ptr = rsp->ring;
3457 	rsp->ring_index    = 0;
3458 	rsp->status_srb = NULL;
3459 	pkt = rsp->ring_ptr;
3460 	for (cnt = 0; cnt < rsp->length; cnt++) {
3461 		pkt->signature = RESPONSE_PROCESSED;
3462 		pkt++;
3463 	}
3464 }
3465 
3466 /**
3467  * qla2x00_update_fw_options() - Read and process firmware options.
3468  * @vha: HA context
3469  *
3470  * Returns 0 on success.
3471  */
3472 void
3473 qla2x00_update_fw_options(scsi_qla_host_t *vha)
3474 {
3475 	uint16_t swing, emphasis, tx_sens, rx_sens;
3476 	struct qla_hw_data *ha = vha->hw;
3477 
3478 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
3479 	qla2x00_get_fw_options(vha, ha->fw_options);
3480 
3481 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
3482 		return;
3483 
3484 	/* Serial Link options. */
3485 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
3486 	    "Serial link options.\n");
3487 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
3488 	    (uint8_t *)&ha->fw_seriallink_options,
3489 	    sizeof(ha->fw_seriallink_options));
3490 
3491 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
3492 	if (ha->fw_seriallink_options[3] & BIT_2) {
3493 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
3494 
3495 		/*  1G settings */
3496 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
3497 		emphasis = (ha->fw_seriallink_options[2] &
3498 		    (BIT_4 | BIT_3)) >> 3;
3499 		tx_sens = ha->fw_seriallink_options[0] &
3500 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3501 		rx_sens = (ha->fw_seriallink_options[0] &
3502 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3503 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
3504 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3505 			if (rx_sens == 0x0)
3506 				rx_sens = 0x3;
3507 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
3508 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3509 			ha->fw_options[10] |= BIT_5 |
3510 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3511 			    (tx_sens & (BIT_1 | BIT_0));
3512 
3513 		/*  2G settings */
3514 		swing = (ha->fw_seriallink_options[2] &
3515 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
3516 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
3517 		tx_sens = ha->fw_seriallink_options[1] &
3518 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3519 		rx_sens = (ha->fw_seriallink_options[1] &
3520 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3521 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
3522 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3523 			if (rx_sens == 0x0)
3524 				rx_sens = 0x3;
3525 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
3526 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3527 			ha->fw_options[11] |= BIT_5 |
3528 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3529 			    (tx_sens & (BIT_1 | BIT_0));
3530 	}
3531 
3532 	/* FCP2 options. */
3533 	/*  Return command IOCBs without waiting for an ABTS to complete. */
3534 	ha->fw_options[3] |= BIT_13;
3535 
3536 	/* LED scheme. */
3537 	if (ha->flags.enable_led_scheme)
3538 		ha->fw_options[2] |= BIT_12;
3539 
3540 	/* Detect ISP6312. */
3541 	if (IS_QLA6312(ha))
3542 		ha->fw_options[2] |= BIT_13;
3543 
3544 	/* Set Retry FLOGI in case of P2P connection */
3545 	if (ha->operating_mode == P2P) {
3546 		ha->fw_options[2] |= BIT_3;
3547 		ql_dbg(ql_dbg_disc, vha, 0x2100,
3548 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3549 			__func__, ha->fw_options[2]);
3550 	}
3551 
3552 	/* Update firmware options. */
3553 	qla2x00_set_fw_options(vha, ha->fw_options);
3554 }
3555 
3556 void
3557 qla24xx_update_fw_options(scsi_qla_host_t *vha)
3558 {
3559 	int rval;
3560 	struct qla_hw_data *ha = vha->hw;
3561 
3562 	if (IS_P3P_TYPE(ha))
3563 		return;
3564 
3565 	/*  Hold status IOCBs until ABTS response received. */
3566 	if (ql2xfwholdabts)
3567 		ha->fw_options[3] |= BIT_12;
3568 
3569 	/* Set Retry FLOGI in case of P2P connection */
3570 	if (ha->operating_mode == P2P) {
3571 		ha->fw_options[2] |= BIT_3;
3572 		ql_dbg(ql_dbg_disc, vha, 0x2101,
3573 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3574 			__func__, ha->fw_options[2]);
3575 	}
3576 
3577 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
3578 	if (ql2xmvasynctoatio &&
3579 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha))) {
3580 		if (qla_tgt_mode_enabled(vha) ||
3581 		    qla_dual_mode_enabled(vha))
3582 			ha->fw_options[2] |= BIT_11;
3583 		else
3584 			ha->fw_options[2] &= ~BIT_11;
3585 	}
3586 
3587 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3588 		/*
3589 		 * Tell FW to track each exchange to prevent
3590 		 * driver from using stale exchange.
3591 		 */
3592 		if (qla_tgt_mode_enabled(vha) ||
3593 		    qla_dual_mode_enabled(vha))
3594 			ha->fw_options[2] |= BIT_4;
3595 		else
3596 			ha->fw_options[2] &= ~BIT_4;
3597 
3598 		/* Reserve 1/2 of emergency exchanges for ELS.*/
3599 		if (qla2xuseresexchforels)
3600 			ha->fw_options[2] |= BIT_8;
3601 		else
3602 			ha->fw_options[2] &= ~BIT_8;
3603 	}
3604 
3605 	ql_dbg(ql_dbg_init, vha, 0x00e8,
3606 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
3607 	    __func__, ha->fw_options[1], ha->fw_options[2],
3608 	    ha->fw_options[3], vha->host->active_mode);
3609 
3610 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
3611 		qla2x00_set_fw_options(vha, ha->fw_options);
3612 
3613 	/* Update Serial Link options. */
3614 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
3615 		return;
3616 
3617 	rval = qla2x00_set_serdes_params(vha,
3618 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
3619 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
3620 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
3621 	if (rval != QLA_SUCCESS) {
3622 		ql_log(ql_log_warn, vha, 0x0104,
3623 		    "Unable to update Serial Link options (%x).\n", rval);
3624 	}
3625 }
3626 
3627 void
3628 qla2x00_config_rings(struct scsi_qla_host *vha)
3629 {
3630 	struct qla_hw_data *ha = vha->hw;
3631 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3632 	struct req_que *req = ha->req_q_map[0];
3633 	struct rsp_que *rsp = ha->rsp_q_map[0];
3634 
3635 	/* Setup ring parameters in initialization control block. */
3636 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
3637 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
3638 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
3639 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
3640 	ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
3641 	ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
3642 	ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
3643 	ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
3644 
3645 	WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
3646 	WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
3647 	WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
3648 	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
3649 	RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
3650 }
3651 
3652 void
3653 qla24xx_config_rings(struct scsi_qla_host *vha)
3654 {
3655 	struct qla_hw_data *ha = vha->hw;
3656 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
3657 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
3658 	struct qla_msix_entry *msix;
3659 	struct init_cb_24xx *icb;
3660 	uint16_t rid = 0;
3661 	struct req_que *req = ha->req_q_map[0];
3662 	struct rsp_que *rsp = ha->rsp_q_map[0];
3663 
3664 	/* Setup ring parameters in initialization control block. */
3665 	icb = (struct init_cb_24xx *)ha->init_cb;
3666 	icb->request_q_outpointer = cpu_to_le16(0);
3667 	icb->response_q_inpointer = cpu_to_le16(0);
3668 	icb->request_q_length = cpu_to_le16(req->length);
3669 	icb->response_q_length = cpu_to_le16(rsp->length);
3670 	icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
3671 	icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
3672 	icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
3673 	icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
3674 
3675 	/* Setup ATIO queue dma pointers for target mode */
3676 	icb->atio_q_inpointer = cpu_to_le16(0);
3677 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
3678 	icb->atio_q_address[0] = cpu_to_le32(LSD(ha->tgt.atio_dma));
3679 	icb->atio_q_address[1] = cpu_to_le32(MSD(ha->tgt.atio_dma));
3680 
3681 	if (IS_SHADOW_REG_CAPABLE(ha))
3682 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
3683 
3684 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3685 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
3686 		icb->rid = cpu_to_le16(rid);
3687 		if (ha->flags.msix_enabled) {
3688 			msix = &ha->msix_entries[1];
3689 			ql_dbg(ql_dbg_init, vha, 0x0019,
3690 			    "Registering vector 0x%x for base que.\n",
3691 			    msix->entry);
3692 			icb->msix = cpu_to_le16(msix->entry);
3693 		}
3694 		/* Use alternate PCI bus number */
3695 		if (MSB(rid))
3696 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
3697 		/* Use alternate PCI devfn */
3698 		if (LSB(rid))
3699 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
3700 
3701 		/* Use Disable MSIX Handshake mode for capable adapters */
3702 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
3703 		    (ha->flags.msix_enabled)) {
3704 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
3705 			ha->flags.disable_msix_handshake = 1;
3706 			ql_dbg(ql_dbg_init, vha, 0x00fe,
3707 			    "MSIX Handshake Disable Mode turned on.\n");
3708 		} else {
3709 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
3710 		}
3711 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
3712 
3713 		WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
3714 		WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
3715 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
3716 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
3717 	} else {
3718 		WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
3719 		WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
3720 		WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
3721 		WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
3722 	}
3723 	qlt_24xx_config_rings(vha);
3724 
3725 	/* PCI posting */
3726 	RD_REG_DWORD(&ioreg->hccr);
3727 }
3728 
3729 /**
3730  * qla2x00_init_rings() - Initializes firmware.
3731  * @vha: HA context
3732  *
3733  * Beginning of request ring has initialization control block already built
3734  * by nvram config routine.
3735  *
3736  * Returns 0 on success.
3737  */
3738 int
3739 qla2x00_init_rings(scsi_qla_host_t *vha)
3740 {
3741 	int	rval;
3742 	unsigned long flags = 0;
3743 	int cnt, que;
3744 	struct qla_hw_data *ha = vha->hw;
3745 	struct req_que *req;
3746 	struct rsp_que *rsp;
3747 	struct mid_init_cb_24xx *mid_init_cb =
3748 	    (struct mid_init_cb_24xx *) ha->init_cb;
3749 
3750 	spin_lock_irqsave(&ha->hardware_lock, flags);
3751 
3752 	/* Clear outstanding commands array. */
3753 	for (que = 0; que < ha->max_req_queues; que++) {
3754 		req = ha->req_q_map[que];
3755 		if (!req || !test_bit(que, ha->req_qid_map))
3756 			continue;
3757 		req->out_ptr = (void *)(req->ring + req->length);
3758 		*req->out_ptr = 0;
3759 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
3760 			req->outstanding_cmds[cnt] = NULL;
3761 
3762 		req->current_outstanding_cmd = 1;
3763 
3764 		/* Initialize firmware. */
3765 		req->ring_ptr  = req->ring;
3766 		req->ring_index    = 0;
3767 		req->cnt      = req->length;
3768 	}
3769 
3770 	for (que = 0; que < ha->max_rsp_queues; que++) {
3771 		rsp = ha->rsp_q_map[que];
3772 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
3773 			continue;
3774 		rsp->in_ptr = (void *)(rsp->ring + rsp->length);
3775 		*rsp->in_ptr = 0;
3776 		/* Initialize response queue entries */
3777 		if (IS_QLAFX00(ha))
3778 			qlafx00_init_response_q_entries(rsp);
3779 		else
3780 			qla2x00_init_response_q_entries(rsp);
3781 	}
3782 
3783 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
3784 	ha->tgt.atio_ring_index = 0;
3785 	/* Initialize ATIO queue entries */
3786 	qlt_init_atio_q_entries(vha);
3787 
3788 	ha->isp_ops->config_rings(vha);
3789 
3790 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3791 
3792 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
3793 
3794 	if (IS_QLAFX00(ha)) {
3795 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
3796 		goto next_check;
3797 	}
3798 
3799 	/* Update any ISP specific firmware options before initialization. */
3800 	ha->isp_ops->update_fw_options(vha);
3801 
3802 	if (ha->flags.npiv_supported) {
3803 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
3804 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
3805 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
3806 	}
3807 
3808 	if (IS_FWI2_CAPABLE(ha)) {
3809 		mid_init_cb->options = cpu_to_le16(BIT_1);
3810 		mid_init_cb->init_cb.execution_throttle =
3811 		    cpu_to_le16(ha->cur_fw_xcb_count);
3812 		ha->flags.dport_enabled =
3813 		    (mid_init_cb->init_cb.firmware_options_1 & BIT_7) != 0;
3814 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
3815 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
3816 		/* FA-WWPN Status */
3817 		ha->flags.fawwpn_enabled =
3818 		    (mid_init_cb->init_cb.firmware_options_1 & BIT_6) != 0;
3819 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
3820 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
3821 	}
3822 
3823 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
3824 next_check:
3825 	if (rval) {
3826 		ql_log(ql_log_fatal, vha, 0x00d2,
3827 		    "Init Firmware **** FAILED ****.\n");
3828 	} else {
3829 		ql_dbg(ql_dbg_init, vha, 0x00d3,
3830 		    "Init Firmware -- success.\n");
3831 		QLA_FW_STARTED(ha);
3832 	}
3833 
3834 	return (rval);
3835 }
3836 
3837 /**
3838  * qla2x00_fw_ready() - Waits for firmware ready.
3839  * @vha: HA context
3840  *
3841  * Returns 0 on success.
3842  */
3843 static int
3844 qla2x00_fw_ready(scsi_qla_host_t *vha)
3845 {
3846 	int		rval;
3847 	unsigned long	wtime, mtime, cs84xx_time;
3848 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
3849 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
3850 	uint16_t	state[6];
3851 	struct qla_hw_data *ha = vha->hw;
3852 
3853 	if (IS_QLAFX00(vha->hw))
3854 		return qlafx00_fw_ready(vha);
3855 
3856 	rval = QLA_SUCCESS;
3857 
3858 	/* Time to wait for loop down */
3859 	if (IS_P3P_TYPE(ha))
3860 		min_wait = 30;
3861 	else
3862 		min_wait = 20;
3863 
3864 	/*
3865 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
3866 	 * our own processing.
3867 	 */
3868 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
3869 		wait_time = min_wait;
3870 	}
3871 
3872 	/* Min wait time if loop down */
3873 	mtime = jiffies + (min_wait * HZ);
3874 
3875 	/* wait time before firmware ready */
3876 	wtime = jiffies + (wait_time * HZ);
3877 
3878 	/* Wait for ISP to finish LIP */
3879 	if (!vha->flags.init_done)
3880 		ql_log(ql_log_info, vha, 0x801e,
3881 		    "Waiting for LIP to complete.\n");
3882 
3883 	do {
3884 		memset(state, -1, sizeof(state));
3885 		rval = qla2x00_get_firmware_state(vha, state);
3886 		if (rval == QLA_SUCCESS) {
3887 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
3888 				vha->device_flags &= ~DFLG_NO_CABLE;
3889 			}
3890 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
3891 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
3892 				    "fw_state=%x 84xx=%x.\n", state[0],
3893 				    state[2]);
3894 				if ((state[2] & FSTATE_LOGGED_IN) &&
3895 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
3896 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
3897 					    "Sending verify iocb.\n");
3898 
3899 					cs84xx_time = jiffies;
3900 					rval = qla84xx_init_chip(vha);
3901 					if (rval != QLA_SUCCESS) {
3902 						ql_log(ql_log_warn,
3903 						    vha, 0x8007,
3904 						    "Init chip failed.\n");
3905 						break;
3906 					}
3907 
3908 					/* Add time taken to initialize. */
3909 					cs84xx_time = jiffies - cs84xx_time;
3910 					wtime += cs84xx_time;
3911 					mtime += cs84xx_time;
3912 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
3913 					    "Increasing wait time by %ld. "
3914 					    "New time %ld.\n", cs84xx_time,
3915 					    wtime);
3916 				}
3917 			} else if (state[0] == FSTATE_READY) {
3918 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
3919 				    "F/W Ready - OK.\n");
3920 
3921 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
3922 				    &ha->login_timeout, &ha->r_a_tov);
3923 
3924 				rval = QLA_SUCCESS;
3925 				break;
3926 			}
3927 
3928 			rval = QLA_FUNCTION_FAILED;
3929 
3930 			if (atomic_read(&vha->loop_down_timer) &&
3931 			    state[0] != FSTATE_READY) {
3932 				/* Loop down. Timeout on min_wait for states
3933 				 * other than Wait for Login.
3934 				 */
3935 				if (time_after_eq(jiffies, mtime)) {
3936 					ql_log(ql_log_info, vha, 0x8038,
3937 					    "Cable is unplugged...\n");
3938 
3939 					vha->device_flags |= DFLG_NO_CABLE;
3940 					break;
3941 				}
3942 			}
3943 		} else {
3944 			/* Mailbox cmd failed. Timeout on min_wait. */
3945 			if (time_after_eq(jiffies, mtime) ||
3946 				ha->flags.isp82xx_fw_hung)
3947 				break;
3948 		}
3949 
3950 		if (time_after_eq(jiffies, wtime))
3951 			break;
3952 
3953 		/* Delay for a while */
3954 		msleep(500);
3955 	} while (1);
3956 
3957 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
3958 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
3959 	    state[1], state[2], state[3], state[4], state[5], jiffies);
3960 
3961 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
3962 		ql_log(ql_log_warn, vha, 0x803b,
3963 		    "Firmware ready **** FAILED ****.\n");
3964 	}
3965 
3966 	return (rval);
3967 }
3968 
3969 /*
3970 *  qla2x00_configure_hba
3971 *      Setup adapter context.
3972 *
3973 * Input:
3974 *      ha = adapter state pointer.
3975 *
3976 * Returns:
3977 *      0 = success
3978 *
3979 * Context:
3980 *      Kernel context.
3981 */
3982 static int
3983 qla2x00_configure_hba(scsi_qla_host_t *vha)
3984 {
3985 	int       rval;
3986 	uint16_t      loop_id;
3987 	uint16_t      topo;
3988 	uint16_t      sw_cap;
3989 	uint8_t       al_pa;
3990 	uint8_t       area;
3991 	uint8_t       domain;
3992 	char		connect_type[22];
3993 	struct qla_hw_data *ha = vha->hw;
3994 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
3995 	port_id_t id;
3996 	unsigned long flags;
3997 
3998 	/* Get host addresses. */
3999 	rval = qla2x00_get_adapter_id(vha,
4000 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4001 	if (rval != QLA_SUCCESS) {
4002 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4003 		    IS_CNA_CAPABLE(ha) ||
4004 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4005 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4006 			    "Loop is in a transition state.\n");
4007 		} else {
4008 			ql_log(ql_log_warn, vha, 0x2009,
4009 			    "Unable to get host loop ID.\n");
4010 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4011 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4012 				ql_log(ql_log_warn, vha, 0x1151,
4013 				    "Doing link init.\n");
4014 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4015 					return rval;
4016 			}
4017 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4018 		}
4019 		return (rval);
4020 	}
4021 
4022 	if (topo == 4) {
4023 		ql_log(ql_log_info, vha, 0x200a,
4024 		    "Cannot get topology - retrying.\n");
4025 		return (QLA_FUNCTION_FAILED);
4026 	}
4027 
4028 	vha->loop_id = loop_id;
4029 
4030 	/* initialize */
4031 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4032 	ha->operating_mode = LOOP;
4033 	ha->switch_cap = 0;
4034 
4035 	switch (topo) {
4036 	case 0:
4037 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4038 		ha->current_topology = ISP_CFG_NL;
4039 		strcpy(connect_type, "(Loop)");
4040 		break;
4041 
4042 	case 1:
4043 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4044 		ha->switch_cap = sw_cap;
4045 		ha->current_topology = ISP_CFG_FL;
4046 		strcpy(connect_type, "(FL_Port)");
4047 		break;
4048 
4049 	case 2:
4050 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4051 		ha->operating_mode = P2P;
4052 		ha->current_topology = ISP_CFG_N;
4053 		strcpy(connect_type, "(N_Port-to-N_Port)");
4054 		break;
4055 
4056 	case 3:
4057 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4058 		ha->switch_cap = sw_cap;
4059 		ha->operating_mode = P2P;
4060 		ha->current_topology = ISP_CFG_F;
4061 		strcpy(connect_type, "(F_Port)");
4062 		break;
4063 
4064 	default:
4065 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4066 		    "HBA in unknown topology %x, using NL.\n", topo);
4067 		ha->current_topology = ISP_CFG_NL;
4068 		strcpy(connect_type, "(Loop)");
4069 		break;
4070 	}
4071 
4072 	/* Save Host port and loop ID. */
4073 	/* byte order - Big Endian */
4074 	id.b.domain = domain;
4075 	id.b.area = area;
4076 	id.b.al_pa = al_pa;
4077 	id.b.rsvd_1 = 0;
4078 	spin_lock_irqsave(&ha->hardware_lock, flags);
4079 	qlt_update_host_map(vha, id);
4080 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4081 
4082 	if (!vha->flags.init_done)
4083 		ql_log(ql_log_info, vha, 0x2010,
4084 		    "Topology - %s, Host Loop address 0x%x.\n",
4085 		    connect_type, vha->loop_id);
4086 
4087 	return(rval);
4088 }
4089 
4090 inline void
4091 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4092 	char *def)
4093 {
4094 	char *st, *en;
4095 	uint16_t index;
4096 	struct qla_hw_data *ha = vha->hw;
4097 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4098 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4099 
4100 	if (memcmp(model, BINZERO, len) != 0) {
4101 		strncpy(ha->model_number, model, len);
4102 		st = en = ha->model_number;
4103 		en += len - 1;
4104 		while (en > st) {
4105 			if (*en != 0x20 && *en != 0x00)
4106 				break;
4107 			*en-- = '\0';
4108 		}
4109 
4110 		index = (ha->pdev->subsystem_device & 0xff);
4111 		if (use_tbl &&
4112 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4113 		    index < QLA_MODEL_NAMES)
4114 			strncpy(ha->model_desc,
4115 			    qla2x00_model_name[index * 2 + 1],
4116 			    sizeof(ha->model_desc) - 1);
4117 	} else {
4118 		index = (ha->pdev->subsystem_device & 0xff);
4119 		if (use_tbl &&
4120 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4121 		    index < QLA_MODEL_NAMES) {
4122 			strcpy(ha->model_number,
4123 			    qla2x00_model_name[index * 2]);
4124 			strncpy(ha->model_desc,
4125 			    qla2x00_model_name[index * 2 + 1],
4126 			    sizeof(ha->model_desc) - 1);
4127 		} else {
4128 			strcpy(ha->model_number, def);
4129 		}
4130 	}
4131 	if (IS_FWI2_CAPABLE(ha))
4132 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4133 		    sizeof(ha->model_desc));
4134 }
4135 
4136 /* On sparc systems, obtain port and node WWN from firmware
4137  * properties.
4138  */
4139 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4140 {
4141 #ifdef CONFIG_SPARC
4142 	struct qla_hw_data *ha = vha->hw;
4143 	struct pci_dev *pdev = ha->pdev;
4144 	struct device_node *dp = pci_device_to_OF_node(pdev);
4145 	const u8 *val;
4146 	int len;
4147 
4148 	val = of_get_property(dp, "port-wwn", &len);
4149 	if (val && len >= WWN_SIZE)
4150 		memcpy(nv->port_name, val, WWN_SIZE);
4151 
4152 	val = of_get_property(dp, "node-wwn", &len);
4153 	if (val && len >= WWN_SIZE)
4154 		memcpy(nv->node_name, val, WWN_SIZE);
4155 #endif
4156 }
4157 
4158 /*
4159 * NVRAM configuration for ISP 2xxx
4160 *
4161 * Input:
4162 *      ha                = adapter block pointer.
4163 *
4164 * Output:
4165 *      initialization control block in response_ring
4166 *      host adapters parameters in host adapter block
4167 *
4168 * Returns:
4169 *      0 = success.
4170 */
4171 int
4172 qla2x00_nvram_config(scsi_qla_host_t *vha)
4173 {
4174 	int             rval;
4175 	uint8_t         chksum = 0;
4176 	uint16_t        cnt;
4177 	uint8_t         *dptr1, *dptr2;
4178 	struct qla_hw_data *ha = vha->hw;
4179 	init_cb_t       *icb = ha->init_cb;
4180 	nvram_t         *nv = ha->nvram;
4181 	uint8_t         *ptr = ha->nvram;
4182 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4183 
4184 	rval = QLA_SUCCESS;
4185 
4186 	/* Determine NVRAM starting address. */
4187 	ha->nvram_size = sizeof(nvram_t);
4188 	ha->nvram_base = 0;
4189 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4190 		if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
4191 			ha->nvram_base = 0x80;
4192 
4193 	/* Get NVRAM data and calculate checksum. */
4194 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4195 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4196 		chksum += *ptr++;
4197 
4198 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4199 	    "Contents of NVRAM.\n");
4200 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4201 	    (uint8_t *)nv, ha->nvram_size);
4202 
4203 	/* Bad NVRAM data, set defaults parameters. */
4204 	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
4205 	    nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
4206 		/* Reset NVRAM data. */
4207 		ql_log(ql_log_warn, vha, 0x0064,
4208 		    "Inconsistent NVRAM "
4209 		    "detected: checksum=0x%x id=%c version=0x%x.\n",
4210 		    chksum, nv->id[0], nv->nvram_version);
4211 		ql_log(ql_log_warn, vha, 0x0065,
4212 		    "Falling back to "
4213 		    "functioning (yet invalid -- WWPN) defaults.\n");
4214 
4215 		/*
4216 		 * Set default initialization control block.
4217 		 */
4218 		memset(nv, 0, ha->nvram_size);
4219 		nv->parameter_block_version = ICB_VERSION;
4220 
4221 		if (IS_QLA23XX(ha)) {
4222 			nv->firmware_options[0] = BIT_2 | BIT_1;
4223 			nv->firmware_options[1] = BIT_7 | BIT_5;
4224 			nv->add_firmware_options[0] = BIT_5;
4225 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4226 			nv->frame_payload_size = 2048;
4227 			nv->special_options[1] = BIT_7;
4228 		} else if (IS_QLA2200(ha)) {
4229 			nv->firmware_options[0] = BIT_2 | BIT_1;
4230 			nv->firmware_options[1] = BIT_7 | BIT_5;
4231 			nv->add_firmware_options[0] = BIT_5;
4232 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4233 			nv->frame_payload_size = 1024;
4234 		} else if (IS_QLA2100(ha)) {
4235 			nv->firmware_options[0] = BIT_3 | BIT_1;
4236 			nv->firmware_options[1] = BIT_5;
4237 			nv->frame_payload_size = 1024;
4238 		}
4239 
4240 		nv->max_iocb_allocation = cpu_to_le16(256);
4241 		nv->execution_throttle = cpu_to_le16(16);
4242 		nv->retry_count = 8;
4243 		nv->retry_delay = 1;
4244 
4245 		nv->port_name[0] = 33;
4246 		nv->port_name[3] = 224;
4247 		nv->port_name[4] = 139;
4248 
4249 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
4250 
4251 		nv->login_timeout = 4;
4252 
4253 		/*
4254 		 * Set default host adapter parameters
4255 		 */
4256 		nv->host_p[1] = BIT_2;
4257 		nv->reset_delay = 5;
4258 		nv->port_down_retry_count = 8;
4259 		nv->max_luns_per_target = cpu_to_le16(8);
4260 		nv->link_down_timeout = 60;
4261 
4262 		rval = 1;
4263 	}
4264 
4265 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
4266 	/*
4267 	 * The SN2 does not provide BIOS emulation which means you can't change
4268 	 * potentially bogus BIOS settings. Force the use of default settings
4269 	 * for link rate and frame size.  Hope that the rest of the settings
4270 	 * are valid.
4271 	 */
4272 	if (ia64_platform_is("sn2")) {
4273 		nv->frame_payload_size = 2048;
4274 		if (IS_QLA23XX(ha))
4275 			nv->special_options[1] = BIT_7;
4276 	}
4277 #endif
4278 
4279 	/* Reset Initialization control block */
4280 	memset(icb, 0, ha->init_cb_size);
4281 
4282 	/*
4283 	 * Setup driver NVRAM options.
4284 	 */
4285 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
4286 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
4287 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
4288 	nv->firmware_options[1] &= ~BIT_4;
4289 
4290 	if (IS_QLA23XX(ha)) {
4291 		nv->firmware_options[0] |= BIT_2;
4292 		nv->firmware_options[0] &= ~BIT_3;
4293 		nv->special_options[0] &= ~BIT_6;
4294 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
4295 
4296 		if (IS_QLA2300(ha)) {
4297 			if (ha->fb_rev == FPM_2310) {
4298 				strcpy(ha->model_number, "QLA2310");
4299 			} else {
4300 				strcpy(ha->model_number, "QLA2300");
4301 			}
4302 		} else {
4303 			qla2x00_set_model_info(vha, nv->model_number,
4304 			    sizeof(nv->model_number), "QLA23xx");
4305 		}
4306 	} else if (IS_QLA2200(ha)) {
4307 		nv->firmware_options[0] |= BIT_2;
4308 		/*
4309 		 * 'Point-to-point preferred, else loop' is not a safe
4310 		 * connection mode setting.
4311 		 */
4312 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
4313 		    (BIT_5 | BIT_4)) {
4314 			/* Force 'loop preferred, else point-to-point'. */
4315 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
4316 			nv->add_firmware_options[0] |= BIT_5;
4317 		}
4318 		strcpy(ha->model_number, "QLA22xx");
4319 	} else /*if (IS_QLA2100(ha))*/ {
4320 		strcpy(ha->model_number, "QLA2100");
4321 	}
4322 
4323 	/*
4324 	 * Copy over NVRAM RISC parameter block to initialization control block.
4325 	 */
4326 	dptr1 = (uint8_t *)icb;
4327 	dptr2 = (uint8_t *)&nv->parameter_block_version;
4328 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
4329 	while (cnt--)
4330 		*dptr1++ = *dptr2++;
4331 
4332 	/* Copy 2nd half. */
4333 	dptr1 = (uint8_t *)icb->add_firmware_options;
4334 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
4335 	while (cnt--)
4336 		*dptr1++ = *dptr2++;
4337 
4338 	/* Use alternate WWN? */
4339 	if (nv->host_p[1] & BIT_7) {
4340 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4341 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4342 	}
4343 
4344 	/* Prepare nodename */
4345 	if ((icb->firmware_options[1] & BIT_6) == 0) {
4346 		/*
4347 		 * Firmware will apply the following mask if the nodename was
4348 		 * not provided.
4349 		 */
4350 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4351 		icb->node_name[0] &= 0xF0;
4352 	}
4353 
4354 	/*
4355 	 * Set host adapter parameters.
4356 	 */
4357 
4358 	/*
4359 	 * BIT_7 in the host-parameters section allows for modification to
4360 	 * internal driver logging.
4361 	 */
4362 	if (nv->host_p[0] & BIT_7)
4363 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
4364 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
4365 	/* Always load RISC code on non ISP2[12]00 chips. */
4366 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
4367 		ha->flags.disable_risc_code_load = 0;
4368 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
4369 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
4370 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
4371 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
4372 	ha->flags.disable_serdes = 0;
4373 
4374 	ha->operating_mode =
4375 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
4376 
4377 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
4378 	    sizeof(ha->fw_seriallink_options));
4379 
4380 	/* save HBA serial number */
4381 	ha->serial0 = icb->port_name[5];
4382 	ha->serial1 = icb->port_name[6];
4383 	ha->serial2 = icb->port_name[7];
4384 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4385 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4386 
4387 	icb->execution_throttle = cpu_to_le16(0xFFFF);
4388 
4389 	ha->retry_count = nv->retry_count;
4390 
4391 	/* Set minimum login_timeout to 4 seconds. */
4392 	if (nv->login_timeout != ql2xlogintimeout)
4393 		nv->login_timeout = ql2xlogintimeout;
4394 	if (nv->login_timeout < 4)
4395 		nv->login_timeout = 4;
4396 	ha->login_timeout = nv->login_timeout;
4397 
4398 	/* Set minimum RATOV to 100 tenths of a second. */
4399 	ha->r_a_tov = 100;
4400 
4401 	ha->loop_reset_delay = nv->reset_delay;
4402 
4403 	/* Link Down Timeout = 0:
4404 	 *
4405 	 * 	When Port Down timer expires we will start returning
4406 	 *	I/O's to OS with "DID_NO_CONNECT".
4407 	 *
4408 	 * Link Down Timeout != 0:
4409 	 *
4410 	 *	 The driver waits for the link to come up after link down
4411 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
4412 	 */
4413 	if (nv->link_down_timeout == 0) {
4414 		ha->loop_down_abort_time =
4415 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4416 	} else {
4417 		ha->link_down_timeout =	 nv->link_down_timeout;
4418 		ha->loop_down_abort_time =
4419 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
4420 	}
4421 
4422 	/*
4423 	 * Need enough time to try and get the port back.
4424 	 */
4425 	ha->port_down_retry_count = nv->port_down_retry_count;
4426 	if (qlport_down_retry)
4427 		ha->port_down_retry_count = qlport_down_retry;
4428 	/* Set login_retry_count */
4429 	ha->login_retry_count  = nv->retry_count;
4430 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
4431 	    ha->port_down_retry_count > 3)
4432 		ha->login_retry_count = ha->port_down_retry_count;
4433 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4434 		ha->login_retry_count = ha->port_down_retry_count;
4435 	if (ql2xloginretrycount)
4436 		ha->login_retry_count = ql2xloginretrycount;
4437 
4438 	icb->lun_enables = cpu_to_le16(0);
4439 	icb->command_resource_count = 0;
4440 	icb->immediate_notify_resource_count = 0;
4441 	icb->timeout = cpu_to_le16(0);
4442 
4443 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4444 		/* Enable RIO */
4445 		icb->firmware_options[0] &= ~BIT_3;
4446 		icb->add_firmware_options[0] &=
4447 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4448 		icb->add_firmware_options[0] |= BIT_2;
4449 		icb->response_accumulation_timer = 3;
4450 		icb->interrupt_delay_timer = 5;
4451 
4452 		vha->flags.process_response_queue = 1;
4453 	} else {
4454 		/* Enable ZIO. */
4455 		if (!vha->flags.init_done) {
4456 			ha->zio_mode = icb->add_firmware_options[0] &
4457 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4458 			ha->zio_timer = icb->interrupt_delay_timer ?
4459 			    icb->interrupt_delay_timer: 2;
4460 		}
4461 		icb->add_firmware_options[0] &=
4462 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4463 		vha->flags.process_response_queue = 0;
4464 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
4465 			ha->zio_mode = QLA_ZIO_MODE_6;
4466 
4467 			ql_log(ql_log_info, vha, 0x0068,
4468 			    "ZIO mode %d enabled; timer delay (%d us).\n",
4469 			    ha->zio_mode, ha->zio_timer * 100);
4470 
4471 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
4472 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
4473 			vha->flags.process_response_queue = 1;
4474 		}
4475 	}
4476 
4477 	if (rval) {
4478 		ql_log(ql_log_warn, vha, 0x0069,
4479 		    "NVRAM configuration failed.\n");
4480 	}
4481 	return (rval);
4482 }
4483 
4484 static void
4485 qla2x00_rport_del(void *data)
4486 {
4487 	fc_port_t *fcport = data;
4488 	struct fc_rport *rport;
4489 	unsigned long flags;
4490 
4491 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
4492 	rport = fcport->drport ? fcport->drport: fcport->rport;
4493 	fcport->drport = NULL;
4494 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
4495 	if (rport) {
4496 		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
4497 		    "%s %8phN. rport %p roles %x\n",
4498 		    __func__, fcport->port_name, rport,
4499 		    rport->roles);
4500 
4501 		fc_remote_port_delete(rport);
4502 	}
4503 }
4504 
4505 /**
4506  * qla2x00_alloc_fcport() - Allocate a generic fcport.
4507  * @vha: HA context
4508  * @flags: allocation flags
4509  *
4510  * Returns a pointer to the allocated fcport, or NULL, if none available.
4511  */
4512 fc_port_t *
4513 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
4514 {
4515 	fc_port_t *fcport;
4516 
4517 	fcport = kzalloc(sizeof(fc_port_t), flags);
4518 	if (!fcport)
4519 		return NULL;
4520 
4521 	/* Setup fcport template structure. */
4522 	fcport->vha = vha;
4523 	fcport->port_type = FCT_UNKNOWN;
4524 	fcport->loop_id = FC_NO_LOOP_ID;
4525 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
4526 	fcport->supported_classes = FC_COS_UNSPECIFIED;
4527 
4528 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
4529 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
4530 		flags);
4531 	fcport->disc_state = DSC_DELETED;
4532 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
4533 	fcport->deleted = QLA_SESS_DELETED;
4534 	fcport->login_retry = vha->hw->login_retry_count;
4535 	fcport->login_retry = 5;
4536 	fcport->logout_on_delete = 1;
4537 
4538 	if (!fcport->ct_desc.ct_sns) {
4539 		ql_log(ql_log_warn, vha, 0xd049,
4540 		    "Failed to allocate ct_sns request.\n");
4541 		kfree(fcport);
4542 		fcport = NULL;
4543 	}
4544 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
4545 	INIT_LIST_HEAD(&fcport->gnl_entry);
4546 	INIT_LIST_HEAD(&fcport->list);
4547 
4548 	return fcport;
4549 }
4550 
4551 void
4552 qla2x00_free_fcport(fc_port_t *fcport)
4553 {
4554 	if (fcport->ct_desc.ct_sns) {
4555 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
4556 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
4557 			fcport->ct_desc.ct_sns_dma);
4558 
4559 		fcport->ct_desc.ct_sns = NULL;
4560 	}
4561 	kfree(fcport);
4562 }
4563 
4564 /*
4565  * qla2x00_configure_loop
4566  *      Updates Fibre Channel Device Database with what is actually on loop.
4567  *
4568  * Input:
4569  *      ha                = adapter block pointer.
4570  *
4571  * Returns:
4572  *      0 = success.
4573  *      1 = error.
4574  *      2 = database was full and device was not configured.
4575  */
4576 static int
4577 qla2x00_configure_loop(scsi_qla_host_t *vha)
4578 {
4579 	int  rval;
4580 	unsigned long flags, save_flags;
4581 	struct qla_hw_data *ha = vha->hw;
4582 	rval = QLA_SUCCESS;
4583 
4584 	/* Get Initiator ID */
4585 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
4586 		rval = qla2x00_configure_hba(vha);
4587 		if (rval != QLA_SUCCESS) {
4588 			ql_dbg(ql_dbg_disc, vha, 0x2013,
4589 			    "Unable to configure HBA.\n");
4590 			return (rval);
4591 		}
4592 	}
4593 
4594 	save_flags = flags = vha->dpc_flags;
4595 	ql_dbg(ql_dbg_disc, vha, 0x2014,
4596 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
4597 
4598 	/*
4599 	 * If we have both an RSCN and PORT UPDATE pending then handle them
4600 	 * both at the same time.
4601 	 */
4602 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4603 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
4604 
4605 	qla2x00_get_data_rate(vha);
4606 
4607 	/* Determine what we need to do */
4608 	if (ha->current_topology == ISP_CFG_FL &&
4609 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
4610 
4611 		set_bit(RSCN_UPDATE, &flags);
4612 
4613 	} else if (ha->current_topology == ISP_CFG_F &&
4614 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
4615 
4616 		set_bit(RSCN_UPDATE, &flags);
4617 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
4618 
4619 	} else if (ha->current_topology == ISP_CFG_N) {
4620 		clear_bit(RSCN_UPDATE, &flags);
4621 		if (ha->flags.rida_fmt2) {
4622 			/* With Rida Format 2, the login is already triggered.
4623 			 * We know who is on the other side of the wire.
4624 			 * No need to login to do login to find out or drop into
4625 			 * qla2x00_configure_local_loop().
4626 			 */
4627 			clear_bit(LOCAL_LOOP_UPDATE, &flags);
4628 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4629 		} else {
4630 			if (qla_tgt_mode_enabled(vha)) {
4631 				/* allow the other side to start the login */
4632 				clear_bit(LOCAL_LOOP_UPDATE, &flags);
4633 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
4634 			}
4635 		}
4636 	} else if (ha->current_topology == ISP_CFG_NL) {
4637 		clear_bit(RSCN_UPDATE, &flags);
4638 		set_bit(LOCAL_LOOP_UPDATE, &flags);
4639 	} else if (!vha->flags.online ||
4640 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
4641 		set_bit(RSCN_UPDATE, &flags);
4642 		set_bit(LOCAL_LOOP_UPDATE, &flags);
4643 	}
4644 
4645 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
4646 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
4647 			ql_dbg(ql_dbg_disc, vha, 0x2015,
4648 			    "Loop resync needed, failing.\n");
4649 			rval = QLA_FUNCTION_FAILED;
4650 		} else
4651 			rval = qla2x00_configure_local_loop(vha);
4652 	}
4653 
4654 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
4655 		if (LOOP_TRANSITION(vha)) {
4656 			ql_dbg(ql_dbg_disc, vha, 0x2099,
4657 			    "Needs RSCN update and loop transition.\n");
4658 			rval = QLA_FUNCTION_FAILED;
4659 		}
4660 		else
4661 			rval = qla2x00_configure_fabric(vha);
4662 	}
4663 
4664 	if (rval == QLA_SUCCESS) {
4665 		if (atomic_read(&vha->loop_down_timer) ||
4666 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
4667 			rval = QLA_FUNCTION_FAILED;
4668 		} else {
4669 			atomic_set(&vha->loop_state, LOOP_READY);
4670 			ql_dbg(ql_dbg_disc, vha, 0x2069,
4671 			    "LOOP READY.\n");
4672 			ha->flags.fw_init_done = 1;
4673 
4674 			/*
4675 			 * Process any ATIO queue entries that came in
4676 			 * while we weren't online.
4677 			 */
4678 			if (qla_tgt_mode_enabled(vha) ||
4679 			    qla_dual_mode_enabled(vha)) {
4680 				if (IS_QLA27XX(ha) || IS_QLA83XX(ha)) {
4681 					spin_lock_irqsave(&ha->tgt.atio_lock,
4682 					    flags);
4683 					qlt_24xx_process_atio_queue(vha, 0);
4684 					spin_unlock_irqrestore(
4685 					    &ha->tgt.atio_lock, flags);
4686 				} else {
4687 					spin_lock_irqsave(&ha->hardware_lock,
4688 					    flags);
4689 					qlt_24xx_process_atio_queue(vha, 1);
4690 					spin_unlock_irqrestore(
4691 					    &ha->hardware_lock, flags);
4692 				}
4693 			}
4694 		}
4695 	}
4696 
4697 	if (rval) {
4698 		ql_dbg(ql_dbg_disc, vha, 0x206a,
4699 		    "%s *** FAILED ***.\n", __func__);
4700 	} else {
4701 		ql_dbg(ql_dbg_disc, vha, 0x206b,
4702 		    "%s: exiting normally.\n", __func__);
4703 	}
4704 
4705 	/* Restore state if a resync event occurred during processing */
4706 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
4707 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
4708 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4709 		if (test_bit(RSCN_UPDATE, &save_flags)) {
4710 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
4711 		}
4712 	}
4713 
4714 	return (rval);
4715 }
4716 
4717 /*
4718  * N2N Login
4719  *	Updates Fibre Channel Device Database with local loop devices.
4720  *
4721  * Input:
4722  *	ha = adapter block pointer.
4723  *
4724  * Returns:
4725  */
4726 static int qla24xx_n2n_handle_login(struct scsi_qla_host *vha,
4727 				    fc_port_t *fcport)
4728 {
4729 	struct qla_hw_data *ha = vha->hw;
4730 	int	res = QLA_SUCCESS, rval;
4731 	int	greater_wwpn = 0;
4732 	int	logged_in = 0;
4733 
4734 	if (ha->current_topology != ISP_CFG_N)
4735 		return res;
4736 
4737 	if (wwn_to_u64(vha->port_name) >
4738 	    wwn_to_u64(vha->n2n_port_name)) {
4739 		ql_dbg(ql_dbg_disc, vha, 0x2002,
4740 		    "HBA WWPN is greater %llx > target %llx\n",
4741 		    wwn_to_u64(vha->port_name),
4742 		    wwn_to_u64(vha->n2n_port_name));
4743 		greater_wwpn = 1;
4744 		fcport->d_id.b24 = vha->n2n_id;
4745 	}
4746 
4747 	fcport->loop_id = vha->loop_id;
4748 	fcport->fc4f_nvme = 0;
4749 	fcport->query = 1;
4750 
4751 	ql_dbg(ql_dbg_disc, vha, 0x4001,
4752 	    "Initiate N2N login handler: HBA port_id=%06x loopid=%d\n",
4753 	    fcport->d_id.b24, vha->loop_id);
4754 
4755 	/* Fill in member data. */
4756 	if (!greater_wwpn) {
4757 		rval = qla2x00_get_port_database(vha, fcport, 0);
4758 		ql_dbg(ql_dbg_disc, vha, 0x1051,
4759 		    "Remote login-state (%x/%x) port_id=%06x loop_id=%x, rval=%d\n",
4760 		    fcport->current_login_state, fcport->last_login_state,
4761 		    fcport->d_id.b24, fcport->loop_id, rval);
4762 
4763 		if (((fcport->current_login_state & 0xf) == 0x4) ||
4764 		    ((fcport->current_login_state & 0xf) == 0x6))
4765 			logged_in = 1;
4766 	}
4767 
4768 	if (logged_in || greater_wwpn) {
4769 		if (!vha->nvme_local_port && vha->flags.nvme_enabled)
4770 			qla_nvme_register_hba(vha);
4771 
4772 		/* Set connected N_Port d_id */
4773 		if (vha->flags.nvme_enabled)
4774 			fcport->fc4f_nvme = 1;
4775 
4776 		fcport->scan_state = QLA_FCPORT_FOUND;
4777 		fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
4778 		fcport->disc_state = DSC_GNL;
4779 		fcport->n2n_flag = 1;
4780 		fcport->flags = 3;
4781 		vha->hw->flags.gpsc_supported = 0;
4782 
4783 		if (greater_wwpn) {
4784 			ql_dbg(ql_dbg_disc, vha, 0x20e5,
4785 			    "%s %d PLOGI ELS %8phC\n",
4786 			    __func__, __LINE__, fcport->port_name);
4787 
4788 			res = qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
4789 			    fcport, fcport->d_id);
4790 		}
4791 
4792 		if (res != QLA_SUCCESS) {
4793 			ql_log(ql_log_info, vha, 0xd04d,
4794 			    "PLOGI Failed: portid=%06x - retrying\n",
4795 			    fcport->d_id.b24);
4796 			res = QLA_SUCCESS;
4797 		} else {
4798 			/* State 0x6 means FCP PRLI complete */
4799 			if ((fcport->current_login_state & 0xf) == 0x6) {
4800 				ql_dbg(ql_dbg_disc, vha, 0x2118,
4801 				    "%s %d %8phC post GPDB work\n",
4802 				    __func__, __LINE__, fcport->port_name);
4803 				fcport->chip_reset =
4804 				    vha->hw->base_qpair->chip_reset;
4805 				qla24xx_post_gpdb_work(vha, fcport, 0);
4806 			} else {
4807 				ql_dbg(ql_dbg_disc, vha, 0x2118,
4808 				    "%s %d %8phC post NVMe PRLI\n",
4809 				    __func__, __LINE__, fcport->port_name);
4810 				qla24xx_post_prli_work(vha, fcport);
4811 			}
4812 		}
4813 	} else {
4814 		/* Wait for next database change */
4815 		set_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags);
4816 	}
4817 
4818 	return res;
4819 }
4820 
4821 /*
4822  * qla2x00_configure_local_loop
4823  *	Updates Fibre Channel Device Database with local loop devices.
4824  *
4825  * Input:
4826  *	ha = adapter block pointer.
4827  *
4828  * Returns:
4829  *	0 = success.
4830  */
4831 static int
4832 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
4833 {
4834 	int		rval, rval2;
4835 	int		found_devs;
4836 	int		found;
4837 	fc_port_t	*fcport, *new_fcport;
4838 
4839 	uint16_t	index;
4840 	uint16_t	entries;
4841 	char		*id_iter;
4842 	uint16_t	loop_id;
4843 	uint8_t		domain, area, al_pa;
4844 	struct qla_hw_data *ha = vha->hw;
4845 	unsigned long flags;
4846 
4847 	found_devs = 0;
4848 	new_fcport = NULL;
4849 	entries = MAX_FIBRE_DEVICES_LOOP;
4850 
4851 	/* Get list of logged in devices. */
4852 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
4853 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
4854 	    &entries);
4855 	if (rval != QLA_SUCCESS)
4856 		goto cleanup_allocation;
4857 
4858 	ql_dbg(ql_dbg_disc, vha, 0x2011,
4859 	    "Entries in ID list (%d).\n", entries);
4860 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
4861 	    (uint8_t *)ha->gid_list,
4862 	    entries * sizeof(struct gid_list_info));
4863 
4864 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4865 		fcport->scan_state = QLA_FCPORT_SCAN;
4866 	}
4867 
4868 	/* Allocate temporary fcport for any new fcports discovered. */
4869 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
4870 	if (new_fcport == NULL) {
4871 		ql_log(ql_log_warn, vha, 0x2012,
4872 		    "Memory allocation failed for fcport.\n");
4873 		rval = QLA_MEMORY_ALLOC_FAILED;
4874 		goto cleanup_allocation;
4875 	}
4876 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
4877 
4878 	/* Inititae N2N login. */
4879 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) {
4880 		rval = qla24xx_n2n_handle_login(vha, new_fcport);
4881 		if (rval != QLA_SUCCESS)
4882 			goto cleanup_allocation;
4883 		return QLA_SUCCESS;
4884 	}
4885 
4886 	/* Add devices to port list. */
4887 	id_iter = (char *)ha->gid_list;
4888 	for (index = 0; index < entries; index++) {
4889 		domain = ((struct gid_list_info *)id_iter)->domain;
4890 		area = ((struct gid_list_info *)id_iter)->area;
4891 		al_pa = ((struct gid_list_info *)id_iter)->al_pa;
4892 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
4893 			loop_id = (uint16_t)
4894 			    ((struct gid_list_info *)id_iter)->loop_id_2100;
4895 		else
4896 			loop_id = le16_to_cpu(
4897 			    ((struct gid_list_info *)id_iter)->loop_id);
4898 		id_iter += ha->gid_list_info_size;
4899 
4900 		/* Bypass reserved domain fields. */
4901 		if ((domain & 0xf0) == 0xf0)
4902 			continue;
4903 
4904 		/* Bypass if not same domain and area of adapter. */
4905 		if (area && domain &&
4906 		    (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
4907 			continue;
4908 
4909 		/* Bypass invalid local loop ID. */
4910 		if (loop_id > LAST_LOCAL_LOOP_ID)
4911 			continue;
4912 
4913 		memset(new_fcport->port_name, 0, WWN_SIZE);
4914 
4915 		/* Fill in member data. */
4916 		new_fcport->d_id.b.domain = domain;
4917 		new_fcport->d_id.b.area = area;
4918 		new_fcport->d_id.b.al_pa = al_pa;
4919 		new_fcport->loop_id = loop_id;
4920 		new_fcport->scan_state = QLA_FCPORT_FOUND;
4921 
4922 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
4923 		if (rval2 != QLA_SUCCESS) {
4924 			ql_dbg(ql_dbg_disc, vha, 0x2097,
4925 			    "Failed to retrieve fcport information "
4926 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
4927 			    rval2, new_fcport->loop_id);
4928 			/* Skip retry if N2N */
4929 			if (ha->current_topology != ISP_CFG_N) {
4930 				ql_dbg(ql_dbg_disc, vha, 0x2105,
4931 				    "Scheduling resync.\n");
4932 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4933 				continue;
4934 			}
4935 		}
4936 
4937 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4938 		/* Check for matching device in port list. */
4939 		found = 0;
4940 		fcport = NULL;
4941 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
4942 			if (memcmp(new_fcport->port_name, fcport->port_name,
4943 			    WWN_SIZE))
4944 				continue;
4945 
4946 			fcport->flags &= ~FCF_FABRIC_DEVICE;
4947 			fcport->loop_id = new_fcport->loop_id;
4948 			fcport->port_type = new_fcport->port_type;
4949 			fcport->d_id.b24 = new_fcport->d_id.b24;
4950 			memcpy(fcport->node_name, new_fcport->node_name,
4951 			    WWN_SIZE);
4952 			fcport->scan_state = QLA_FCPORT_FOUND;
4953 			found++;
4954 			break;
4955 		}
4956 
4957 		if (!found) {
4958 			/* New device, add to fcports list. */
4959 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
4960 
4961 			/* Allocate a new replacement fcport. */
4962 			fcport = new_fcport;
4963 
4964 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4965 
4966 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
4967 
4968 			if (new_fcport == NULL) {
4969 				ql_log(ql_log_warn, vha, 0xd031,
4970 				    "Failed to allocate memory for fcport.\n");
4971 				rval = QLA_MEMORY_ALLOC_FAILED;
4972 				goto cleanup_allocation;
4973 			}
4974 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
4975 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
4976 		}
4977 
4978 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
4979 
4980 		/* Base iIDMA settings on HBA port speed. */
4981 		fcport->fp_speed = ha->link_data_rate;
4982 
4983 		found_devs++;
4984 	}
4985 
4986 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
4987 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
4988 			break;
4989 
4990 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
4991 			if ((qla_dual_mode_enabled(vha) ||
4992 			    qla_ini_mode_enabled(vha)) &&
4993 			    atomic_read(&fcport->state) == FCS_ONLINE) {
4994 				qla2x00_mark_device_lost(vha, fcport,
4995 					ql2xplogiabsentdevice, 0);
4996 				if (fcport->loop_id != FC_NO_LOOP_ID &&
4997 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
4998 				    fcport->port_type != FCT_INITIATOR &&
4999 				    fcport->port_type != FCT_BROADCAST) {
5000 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5001 					    "%s %d %8phC post del sess\n",
5002 					    __func__, __LINE__,
5003 					    fcport->port_name);
5004 
5005 					qlt_schedule_sess_for_deletion(fcport);
5006 					continue;
5007 				}
5008 			}
5009 		}
5010 
5011 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5012 			qla24xx_fcport_handle_login(vha, fcport);
5013 	}
5014 
5015 cleanup_allocation:
5016 	kfree(new_fcport);
5017 
5018 	if (rval != QLA_SUCCESS) {
5019 		ql_dbg(ql_dbg_disc, vha, 0x2098,
5020 		    "Configure local loop error exit: rval=%x.\n", rval);
5021 	}
5022 
5023 	return (rval);
5024 }
5025 
5026 static void
5027 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5028 {
5029 	int rval;
5030 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5031 	struct qla_hw_data *ha = vha->hw;
5032 
5033 	if (!IS_IIDMA_CAPABLE(ha))
5034 		return;
5035 
5036 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5037 		return;
5038 
5039 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5040 	    fcport->fp_speed > ha->link_data_rate)
5041 		return;
5042 
5043 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5044 	    mb);
5045 	if (rval != QLA_SUCCESS) {
5046 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5047 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5048 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5049 	} else {
5050 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5051 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5052 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5053 		    fcport->fp_speed, fcport->port_name);
5054 	}
5055 }
5056 
5057 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5058 static void
5059 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5060 {
5061 	struct fc_rport_identifiers rport_ids;
5062 	struct fc_rport *rport;
5063 	unsigned long flags;
5064 
5065 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5066 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5067 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5068 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5069 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5070 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5071 	if (!rport) {
5072 		ql_log(ql_log_warn, vha, 0x2006,
5073 		    "Unable to allocate fc remote port.\n");
5074 		return;
5075 	}
5076 
5077 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5078 	*((fc_port_t **)rport->dd_data) = fcport;
5079 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5080 
5081 	rport->supported_classes = fcport->supported_classes;
5082 
5083 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5084 	if (fcport->port_type == FCT_INITIATOR)
5085 		rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
5086 	if (fcport->port_type == FCT_TARGET)
5087 		rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
5088 
5089 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5090 	    "%s %8phN. rport %p is %s mode\n",
5091 	    __func__, fcport->port_name, rport,
5092 	    (fcport->port_type == FCT_TARGET) ? "tgt" : "ini");
5093 
5094 	fc_remote_port_rolechg(rport, rport_ids.roles);
5095 }
5096 
5097 /*
5098  * qla2x00_update_fcport
5099  *	Updates device on list.
5100  *
5101  * Input:
5102  *	ha = adapter block pointer.
5103  *	fcport = port structure pointer.
5104  *
5105  * Return:
5106  *	0  - Success
5107  *  BIT_0 - error
5108  *
5109  * Context:
5110  *	Kernel context.
5111  */
5112 void
5113 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5114 {
5115 	fcport->vha = vha;
5116 
5117 	if (IS_SW_RESV_ADDR(fcport->d_id))
5118 		return;
5119 
5120 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5121 	    __func__, fcport->port_name);
5122 
5123 	if (IS_QLAFX00(vha->hw)) {
5124 		qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5125 		goto reg_port;
5126 	}
5127 	fcport->login_retry = 0;
5128 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5129 	fcport->disc_state = DSC_LOGIN_COMPLETE;
5130 	fcport->deleted = 0;
5131 	fcport->logout_on_delete = 1;
5132 
5133 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5134 	qla2x00_iidma_fcport(vha, fcport);
5135 
5136 	if (fcport->fc4f_nvme) {
5137 		qla_nvme_register_remote(vha, fcport);
5138 		return;
5139 	}
5140 
5141 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5142 
5143 reg_port:
5144 	switch (vha->host->active_mode) {
5145 	case MODE_INITIATOR:
5146 		qla2x00_reg_remote_port(vha, fcport);
5147 		break;
5148 	case MODE_TARGET:
5149 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5150 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5151 			qlt_fc_port_added(vha, fcport);
5152 		break;
5153 	case MODE_DUAL:
5154 		qla2x00_reg_remote_port(vha, fcport);
5155 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5156 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5157 			qlt_fc_port_added(vha, fcport);
5158 		break;
5159 	default:
5160 		break;
5161 	}
5162 }
5163 
5164 /*
5165  * qla2x00_configure_fabric
5166  *      Setup SNS devices with loop ID's.
5167  *
5168  * Input:
5169  *      ha = adapter block pointer.
5170  *
5171  * Returns:
5172  *      0 = success.
5173  *      BIT_0 = error
5174  */
5175 static int
5176 qla2x00_configure_fabric(scsi_qla_host_t *vha)
5177 {
5178 	int	rval;
5179 	fc_port_t	*fcport;
5180 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5181 	uint16_t	loop_id;
5182 	LIST_HEAD(new_fcports);
5183 	struct qla_hw_data *ha = vha->hw;
5184 	int		discovery_gen;
5185 
5186 	/* If FL port exists, then SNS is present */
5187 	if (IS_FWI2_CAPABLE(ha))
5188 		loop_id = NPH_F_PORT;
5189 	else
5190 		loop_id = SNS_FL_PORT;
5191 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
5192 	if (rval != QLA_SUCCESS) {
5193 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
5194 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
5195 
5196 		vha->device_flags &= ~SWITCH_FOUND;
5197 		return (QLA_SUCCESS);
5198 	}
5199 	vha->device_flags |= SWITCH_FOUND;
5200 
5201 
5202 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
5203 		rval = qla2x00_send_change_request(vha, 0x3, 0);
5204 		if (rval != QLA_SUCCESS)
5205 			ql_log(ql_log_warn, vha, 0x121,
5206 				"Failed to enable receiving of RSCN requests: 0x%x.\n",
5207 				rval);
5208 	}
5209 
5210 
5211 	do {
5212 		qla2x00_mgmt_svr_login(vha);
5213 
5214 		/* FDMI support. */
5215 		if (ql2xfdmienable &&
5216 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
5217 			qla2x00_fdmi_register(vha);
5218 
5219 		/* Ensure we are logged into the SNS. */
5220 		loop_id = NPH_SNS_LID(ha);
5221 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
5222 		    0xfc, mb, BIT_1|BIT_0);
5223 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5224 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
5225 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
5226 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
5227 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5228 			return rval;
5229 		}
5230 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
5231 			if (qla2x00_rft_id(vha)) {
5232 				/* EMPTY */
5233 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
5234 				    "Register FC-4 TYPE failed.\n");
5235 				if (test_bit(LOOP_RESYNC_NEEDED,
5236 				    &vha->dpc_flags))
5237 					break;
5238 			}
5239 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
5240 				/* EMPTY */
5241 				ql_dbg(ql_dbg_disc, vha, 0x209a,
5242 				    "Register FC-4 Features failed.\n");
5243 				if (test_bit(LOOP_RESYNC_NEEDED,
5244 				    &vha->dpc_flags))
5245 					break;
5246 			}
5247 			if (vha->flags.nvme_enabled) {
5248 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
5249 					ql_dbg(ql_dbg_disc, vha, 0x2049,
5250 					    "Register NVME FC Type Features failed.\n");
5251 				}
5252 			}
5253 			if (qla2x00_rnn_id(vha)) {
5254 				/* EMPTY */
5255 				ql_dbg(ql_dbg_disc, vha, 0x2104,
5256 				    "Register Node Name failed.\n");
5257 				if (test_bit(LOOP_RESYNC_NEEDED,
5258 				    &vha->dpc_flags))
5259 					break;
5260 			} else if (qla2x00_rsnn_nn(vha)) {
5261 				/* EMPTY */
5262 				ql_dbg(ql_dbg_disc, vha, 0x209b,
5263 				    "Register Symbolic Node Name failed.\n");
5264 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5265 					break;
5266 			}
5267 		}
5268 
5269 
5270 		/* Mark the time right before querying FW for connected ports.
5271 		 * This process is long, asynchronous and by the time it's done,
5272 		 * collected information might not be accurate anymore. E.g.
5273 		 * disconnected port might have re-connected and a brand new
5274 		 * session has been created. In this case session's generation
5275 		 * will be newer than discovery_gen. */
5276 		qlt_do_generation_tick(vha, &discovery_gen);
5277 
5278 		if (USE_ASYNC_SCAN(ha)) {
5279 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
5280 			    NULL);
5281 			if (rval)
5282 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5283 		} else  {
5284 			list_for_each_entry(fcport, &vha->vp_fcports, list)
5285 				fcport->scan_state = QLA_FCPORT_SCAN;
5286 
5287 			rval = qla2x00_find_all_fabric_devs(vha);
5288 		}
5289 		if (rval != QLA_SUCCESS)
5290 			break;
5291 	} while (0);
5292 
5293 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
5294 		qla_nvme_register_hba(vha);
5295 
5296 	if (rval)
5297 		ql_dbg(ql_dbg_disc, vha, 0x2068,
5298 		    "Configure fabric error exit rval=%d.\n", rval);
5299 
5300 	return (rval);
5301 }
5302 
5303 /*
5304  * qla2x00_find_all_fabric_devs
5305  *
5306  * Input:
5307  *	ha = adapter block pointer.
5308  *	dev = database device entry pointer.
5309  *
5310  * Returns:
5311  *	0 = success.
5312  *
5313  * Context:
5314  *	Kernel context.
5315  */
5316 static int
5317 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
5318 {
5319 	int		rval;
5320 	uint16_t	loop_id;
5321 	fc_port_t	*fcport, *new_fcport;
5322 	int		found;
5323 
5324 	sw_info_t	*swl;
5325 	int		swl_idx;
5326 	int		first_dev, last_dev;
5327 	port_id_t	wrap = {}, nxt_d_id;
5328 	struct qla_hw_data *ha = vha->hw;
5329 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5330 	unsigned long flags;
5331 
5332 	rval = QLA_SUCCESS;
5333 
5334 	/* Try GID_PT to get device list, else GAN. */
5335 	if (!ha->swl)
5336 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
5337 		    GFP_KERNEL);
5338 	swl = ha->swl;
5339 	if (!swl) {
5340 		/*EMPTY*/
5341 		ql_dbg(ql_dbg_disc, vha, 0x209c,
5342 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
5343 	} else {
5344 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
5345 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
5346 			swl = NULL;
5347 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5348 				return rval;
5349 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
5350 			swl = NULL;
5351 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5352 				return rval;
5353 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
5354 			swl = NULL;
5355 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5356 				return rval;
5357 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
5358 			swl = NULL;
5359 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5360 				return rval;
5361 		}
5362 
5363 		/* If other queries succeeded probe for FC-4 type */
5364 		if (swl) {
5365 			qla2x00_gff_id(vha, swl);
5366 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5367 				return rval;
5368 		}
5369 	}
5370 	swl_idx = 0;
5371 
5372 	/* Allocate temporary fcport for any new fcports discovered. */
5373 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5374 	if (new_fcport == NULL) {
5375 		ql_log(ql_log_warn, vha, 0x209d,
5376 		    "Failed to allocate memory for fcport.\n");
5377 		return (QLA_MEMORY_ALLOC_FAILED);
5378 	}
5379 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5380 	/* Set start port ID scan at adapter ID. */
5381 	first_dev = 1;
5382 	last_dev = 0;
5383 
5384 	/* Starting free loop ID. */
5385 	loop_id = ha->min_external_loopid;
5386 	for (; loop_id <= ha->max_loop_id; loop_id++) {
5387 		if (qla2x00_is_reserved_id(vha, loop_id))
5388 			continue;
5389 
5390 		if (ha->current_topology == ISP_CFG_FL &&
5391 		    (atomic_read(&vha->loop_down_timer) ||
5392 		     LOOP_TRANSITION(vha))) {
5393 			atomic_set(&vha->loop_down_timer, 0);
5394 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5395 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5396 			break;
5397 		}
5398 
5399 		if (swl != NULL) {
5400 			if (last_dev) {
5401 				wrap.b24 = new_fcport->d_id.b24;
5402 			} else {
5403 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
5404 				memcpy(new_fcport->node_name,
5405 				    swl[swl_idx].node_name, WWN_SIZE);
5406 				memcpy(new_fcport->port_name,
5407 				    swl[swl_idx].port_name, WWN_SIZE);
5408 				memcpy(new_fcport->fabric_port_name,
5409 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
5410 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
5411 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
5412 
5413 				new_fcport->nvme_flag = 0;
5414 				new_fcport->fc4f_nvme = 0;
5415 				if (vha->flags.nvme_enabled &&
5416 				    swl[swl_idx].fc4f_nvme) {
5417 					new_fcport->fc4f_nvme =
5418 					    swl[swl_idx].fc4f_nvme;
5419 					ql_log(ql_log_info, vha, 0x2131,
5420 					    "FOUND: NVME port %8phC as FC Type 28h\n",
5421 					    new_fcport->port_name);
5422 				}
5423 
5424 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
5425 					last_dev = 1;
5426 				}
5427 				swl_idx++;
5428 			}
5429 		} else {
5430 			/* Send GA_NXT to the switch */
5431 			rval = qla2x00_ga_nxt(vha, new_fcport);
5432 			if (rval != QLA_SUCCESS) {
5433 				ql_log(ql_log_warn, vha, 0x209e,
5434 				    "SNS scan failed -- assuming "
5435 				    "zero-entry result.\n");
5436 				rval = QLA_SUCCESS;
5437 				break;
5438 			}
5439 		}
5440 
5441 		/* If wrap on switch device list, exit. */
5442 		if (first_dev) {
5443 			wrap.b24 = new_fcport->d_id.b24;
5444 			first_dev = 0;
5445 		} else if (new_fcport->d_id.b24 == wrap.b24) {
5446 			ql_dbg(ql_dbg_disc, vha, 0x209f,
5447 			    "Device wrap (%02x%02x%02x).\n",
5448 			    new_fcport->d_id.b.domain,
5449 			    new_fcport->d_id.b.area,
5450 			    new_fcport->d_id.b.al_pa);
5451 			break;
5452 		}
5453 
5454 		/* Bypass if same physical adapter. */
5455 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
5456 			continue;
5457 
5458 		/* Bypass virtual ports of the same host. */
5459 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
5460 			continue;
5461 
5462 		/* Bypass if same domain and area of adapter. */
5463 		if (((new_fcport->d_id.b24 & 0xffff00) ==
5464 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
5465 			ISP_CFG_FL)
5466 			    continue;
5467 
5468 		/* Bypass reserved domain fields. */
5469 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
5470 			continue;
5471 
5472 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
5473 		if (ql2xgffidenable &&
5474 		    (new_fcport->fc4_type != FC4_TYPE_FCP_SCSI &&
5475 		    new_fcport->fc4_type != FC4_TYPE_UNKNOWN))
5476 			continue;
5477 
5478 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5479 
5480 		/* Locate matching device in database. */
5481 		found = 0;
5482 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5483 			if (memcmp(new_fcport->port_name, fcport->port_name,
5484 			    WWN_SIZE))
5485 				continue;
5486 
5487 			fcport->scan_state = QLA_FCPORT_FOUND;
5488 
5489 			found++;
5490 
5491 			/* Update port state. */
5492 			memcpy(fcport->fabric_port_name,
5493 			    new_fcport->fabric_port_name, WWN_SIZE);
5494 			fcport->fp_speed = new_fcport->fp_speed;
5495 
5496 			/*
5497 			 * If address the same and state FCS_ONLINE
5498 			 * (or in target mode), nothing changed.
5499 			 */
5500 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
5501 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
5502 			     (vha->host->active_mode == MODE_TARGET))) {
5503 				break;
5504 			}
5505 
5506 			/*
5507 			 * If device was not a fabric device before.
5508 			 */
5509 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
5510 				fcport->d_id.b24 = new_fcport->d_id.b24;
5511 				qla2x00_clear_loop_id(fcport);
5512 				fcport->flags |= (FCF_FABRIC_DEVICE |
5513 				    FCF_LOGIN_NEEDED);
5514 				break;
5515 			}
5516 
5517 			/*
5518 			 * Port ID changed or device was marked to be updated;
5519 			 * Log it out if still logged in and mark it for
5520 			 * relogin later.
5521 			 */
5522 			if (qla_tgt_mode_enabled(base_vha)) {
5523 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
5524 					 "port changed FC ID, %8phC"
5525 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
5526 					 fcport->port_name,
5527 					 fcport->d_id.b.domain,
5528 					 fcport->d_id.b.area,
5529 					 fcport->d_id.b.al_pa,
5530 					 fcport->loop_id,
5531 					 new_fcport->d_id.b.domain,
5532 					 new_fcport->d_id.b.area,
5533 					 new_fcport->d_id.b.al_pa);
5534 				fcport->d_id.b24 = new_fcport->d_id.b24;
5535 				break;
5536 			}
5537 
5538 			fcport->d_id.b24 = new_fcport->d_id.b24;
5539 			fcport->flags |= FCF_LOGIN_NEEDED;
5540 			break;
5541 		}
5542 
5543 		if (fcport->fc4f_nvme) {
5544 			if (fcport->disc_state == DSC_DELETE_PEND) {
5545 				fcport->disc_state = DSC_GNL;
5546 				vha->fcport_count--;
5547 				fcport->login_succ = 0;
5548 			}
5549 		}
5550 
5551 		if (found) {
5552 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5553 			continue;
5554 		}
5555 		/* If device was not in our fcports list, then add it. */
5556 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5557 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
5558 
5559 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5560 
5561 
5562 		/* Allocate a new replacement fcport. */
5563 		nxt_d_id.b24 = new_fcport->d_id.b24;
5564 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5565 		if (new_fcport == NULL) {
5566 			ql_log(ql_log_warn, vha, 0xd032,
5567 			    "Memory allocation failed for fcport.\n");
5568 			return (QLA_MEMORY_ALLOC_FAILED);
5569 		}
5570 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5571 		new_fcport->d_id.b24 = nxt_d_id.b24;
5572 	}
5573 
5574 	qla2x00_free_fcport(new_fcport);
5575 
5576 	/*
5577 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
5578 	 */
5579 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5580 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5581 			break;
5582 
5583 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
5584 		    (fcport->flags & FCF_LOGIN_NEEDED) == 0)
5585 			continue;
5586 
5587 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5588 			if ((qla_dual_mode_enabled(vha) ||
5589 			    qla_ini_mode_enabled(vha)) &&
5590 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5591 				qla2x00_mark_device_lost(vha, fcport,
5592 					ql2xplogiabsentdevice, 0);
5593 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5594 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5595 				    fcport->port_type != FCT_INITIATOR &&
5596 				    fcport->port_type != FCT_BROADCAST) {
5597 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5598 					    "%s %d %8phC post del sess\n",
5599 					    __func__, __LINE__,
5600 					    fcport->port_name);
5601 					qlt_schedule_sess_for_deletion(fcport);
5602 					continue;
5603 				}
5604 			}
5605 		}
5606 
5607 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5608 			qla24xx_fcport_handle_login(vha, fcport);
5609 	}
5610 	return (rval);
5611 }
5612 
5613 /*
5614  * qla2x00_find_new_loop_id
5615  *	Scan through our port list and find a new usable loop ID.
5616  *
5617  * Input:
5618  *	ha:	adapter state pointer.
5619  *	dev:	port structure pointer.
5620  *
5621  * Returns:
5622  *	qla2x00 local function return status code.
5623  *
5624  * Context:
5625  *	Kernel context.
5626  */
5627 int
5628 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
5629 {
5630 	int	rval;
5631 	struct qla_hw_data *ha = vha->hw;
5632 	unsigned long flags = 0;
5633 
5634 	rval = QLA_SUCCESS;
5635 
5636 	spin_lock_irqsave(&ha->vport_slock, flags);
5637 
5638 	dev->loop_id = find_first_zero_bit(ha->loop_id_map,
5639 	    LOOPID_MAP_SIZE);
5640 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
5641 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
5642 		dev->loop_id = FC_NO_LOOP_ID;
5643 		rval = QLA_FUNCTION_FAILED;
5644 	} else
5645 		set_bit(dev->loop_id, ha->loop_id_map);
5646 
5647 	spin_unlock_irqrestore(&ha->vport_slock, flags);
5648 
5649 	if (rval == QLA_SUCCESS)
5650 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
5651 		    "Assigning new loopid=%x, portid=%x.\n",
5652 		    dev->loop_id, dev->d_id.b24);
5653 	else
5654 		ql_log(ql_log_warn, dev->vha, 0x2087,
5655 		    "No loop_id's available, portid=%x.\n",
5656 		    dev->d_id.b24);
5657 
5658 	return (rval);
5659 }
5660 
5661 
5662 /*
5663  * qla2x00_fabric_login
5664  *	Issue fabric login command.
5665  *
5666  * Input:
5667  *	ha = adapter block pointer.
5668  *	device = pointer to FC device type structure.
5669  *
5670  * Returns:
5671  *      0 - Login successfully
5672  *      1 - Login failed
5673  *      2 - Initiator device
5674  *      3 - Fatal error
5675  */
5676 int
5677 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
5678     uint16_t *next_loopid)
5679 {
5680 	int	rval;
5681 	int	retry;
5682 	uint16_t tmp_loopid;
5683 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5684 	struct qla_hw_data *ha = vha->hw;
5685 
5686 	retry = 0;
5687 	tmp_loopid = 0;
5688 
5689 	for (;;) {
5690 		ql_dbg(ql_dbg_disc, vha, 0x2000,
5691 		    "Trying Fabric Login w/loop id 0x%04x for port "
5692 		    "%02x%02x%02x.\n",
5693 		    fcport->loop_id, fcport->d_id.b.domain,
5694 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
5695 
5696 		/* Login fcport on switch. */
5697 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
5698 		    fcport->d_id.b.domain, fcport->d_id.b.area,
5699 		    fcport->d_id.b.al_pa, mb, BIT_0);
5700 		if (rval != QLA_SUCCESS) {
5701 			return rval;
5702 		}
5703 		if (mb[0] == MBS_PORT_ID_USED) {
5704 			/*
5705 			 * Device has another loop ID.  The firmware team
5706 			 * recommends the driver perform an implicit login with
5707 			 * the specified ID again. The ID we just used is save
5708 			 * here so we return with an ID that can be tried by
5709 			 * the next login.
5710 			 */
5711 			retry++;
5712 			tmp_loopid = fcport->loop_id;
5713 			fcport->loop_id = mb[1];
5714 
5715 			ql_dbg(ql_dbg_disc, vha, 0x2001,
5716 			    "Fabric Login: port in use - next loop "
5717 			    "id=0x%04x, port id= %02x%02x%02x.\n",
5718 			    fcport->loop_id, fcport->d_id.b.domain,
5719 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
5720 
5721 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
5722 			/*
5723 			 * Login succeeded.
5724 			 */
5725 			if (retry) {
5726 				/* A retry occurred before. */
5727 				*next_loopid = tmp_loopid;
5728 			} else {
5729 				/*
5730 				 * No retry occurred before. Just increment the
5731 				 * ID value for next login.
5732 				 */
5733 				*next_loopid = (fcport->loop_id + 1);
5734 			}
5735 
5736 			if (mb[1] & BIT_0) {
5737 				fcport->port_type = FCT_INITIATOR;
5738 			} else {
5739 				fcport->port_type = FCT_TARGET;
5740 				if (mb[1] & BIT_1) {
5741 					fcport->flags |= FCF_FCP2_DEVICE;
5742 				}
5743 			}
5744 
5745 			if (mb[10] & BIT_0)
5746 				fcport->supported_classes |= FC_COS_CLASS2;
5747 			if (mb[10] & BIT_1)
5748 				fcport->supported_classes |= FC_COS_CLASS3;
5749 
5750 			if (IS_FWI2_CAPABLE(ha)) {
5751 				if (mb[10] & BIT_7)
5752 					fcport->flags |=
5753 					    FCF_CONF_COMP_SUPPORTED;
5754 			}
5755 
5756 			rval = QLA_SUCCESS;
5757 			break;
5758 		} else if (mb[0] == MBS_LOOP_ID_USED) {
5759 			/*
5760 			 * Loop ID already used, try next loop ID.
5761 			 */
5762 			fcport->loop_id++;
5763 			rval = qla2x00_find_new_loop_id(vha, fcport);
5764 			if (rval != QLA_SUCCESS) {
5765 				/* Ran out of loop IDs to use */
5766 				break;
5767 			}
5768 		} else if (mb[0] == MBS_COMMAND_ERROR) {
5769 			/*
5770 			 * Firmware possibly timed out during login. If NO
5771 			 * retries are left to do then the device is declared
5772 			 * dead.
5773 			 */
5774 			*next_loopid = fcport->loop_id;
5775 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
5776 			    fcport->d_id.b.domain, fcport->d_id.b.area,
5777 			    fcport->d_id.b.al_pa);
5778 			qla2x00_mark_device_lost(vha, fcport, 1, 0);
5779 
5780 			rval = 1;
5781 			break;
5782 		} else {
5783 			/*
5784 			 * unrecoverable / not handled error
5785 			 */
5786 			ql_dbg(ql_dbg_disc, vha, 0x2002,
5787 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
5788 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
5789 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
5790 			    fcport->loop_id, jiffies);
5791 
5792 			*next_loopid = fcport->loop_id;
5793 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
5794 			    fcport->d_id.b.domain, fcport->d_id.b.area,
5795 			    fcport->d_id.b.al_pa);
5796 			qla2x00_clear_loop_id(fcport);
5797 			fcport->login_retry = 0;
5798 
5799 			rval = 3;
5800 			break;
5801 		}
5802 	}
5803 
5804 	return (rval);
5805 }
5806 
5807 /*
5808  * qla2x00_local_device_login
5809  *	Issue local device login command.
5810  *
5811  * Input:
5812  *	ha = adapter block pointer.
5813  *	loop_id = loop id of device to login to.
5814  *
5815  * Returns (Where's the #define!!!!):
5816  *      0 - Login successfully
5817  *      1 - Login failed
5818  *      3 - Fatal error
5819  */
5820 int
5821 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
5822 {
5823 	int		rval;
5824 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5825 
5826 	memset(mb, 0, sizeof(mb));
5827 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
5828 	if (rval == QLA_SUCCESS) {
5829 		/* Interrogate mailbox registers for any errors */
5830 		if (mb[0] == MBS_COMMAND_ERROR)
5831 			rval = 1;
5832 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
5833 			/* device not in PCB table */
5834 			rval = 3;
5835 	}
5836 
5837 	return (rval);
5838 }
5839 
5840 /*
5841  *  qla2x00_loop_resync
5842  *      Resync with fibre channel devices.
5843  *
5844  * Input:
5845  *      ha = adapter block pointer.
5846  *
5847  * Returns:
5848  *      0 = success
5849  */
5850 int
5851 qla2x00_loop_resync(scsi_qla_host_t *vha)
5852 {
5853 	int rval = QLA_SUCCESS;
5854 	uint32_t wait_time;
5855 	struct req_que *req;
5856 	struct rsp_que *rsp;
5857 
5858 	req = vha->req;
5859 	rsp = req->rsp;
5860 
5861 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
5862 	if (vha->flags.online) {
5863 		if (!(rval = qla2x00_fw_ready(vha))) {
5864 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
5865 			wait_time = 256;
5866 			do {
5867 				if (!IS_QLAFX00(vha->hw)) {
5868 					/*
5869 					 * Issue a marker after FW becomes
5870 					 * ready.
5871 					 */
5872 					qla2x00_marker(vha, req, rsp, 0, 0,
5873 						MK_SYNC_ALL);
5874 					vha->marker_needed = 0;
5875 				}
5876 
5877 				/* Remap devices on Loop. */
5878 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5879 
5880 				if (IS_QLAFX00(vha->hw))
5881 					qlafx00_configure_devices(vha);
5882 				else
5883 					qla2x00_configure_loop(vha);
5884 
5885 				wait_time--;
5886 			} while (!atomic_read(&vha->loop_down_timer) &&
5887 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
5888 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
5889 				&vha->dpc_flags)));
5890 		}
5891 	}
5892 
5893 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
5894 		return (QLA_FUNCTION_FAILED);
5895 
5896 	if (rval)
5897 		ql_dbg(ql_dbg_disc, vha, 0x206c,
5898 		    "%s *** FAILED ***.\n", __func__);
5899 
5900 	return (rval);
5901 }
5902 
5903 /*
5904 * qla2x00_perform_loop_resync
5905 * Description: This function will set the appropriate flags and call
5906 *              qla2x00_loop_resync. If successful loop will be resynced
5907 * Arguments : scsi_qla_host_t pointer
5908 * returm    : Success or Failure
5909 */
5910 
5911 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
5912 {
5913 	int32_t rval = 0;
5914 
5915 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
5916 		/*Configure the flags so that resync happens properly*/
5917 		atomic_set(&ha->loop_down_timer, 0);
5918 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
5919 			atomic_set(&ha->loop_state, LOOP_UP);
5920 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
5921 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
5922 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
5923 
5924 			rval = qla2x00_loop_resync(ha);
5925 		} else
5926 			atomic_set(&ha->loop_state, LOOP_DEAD);
5927 
5928 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
5929 	}
5930 
5931 	return rval;
5932 }
5933 
5934 void
5935 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
5936 {
5937 	fc_port_t *fcport;
5938 	struct scsi_qla_host *vha;
5939 	struct qla_hw_data *ha = base_vha->hw;
5940 	unsigned long flags;
5941 
5942 	spin_lock_irqsave(&ha->vport_slock, flags);
5943 	/* Go with deferred removal of rport references. */
5944 	list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
5945 		atomic_inc(&vha->vref_count);
5946 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5947 			if (fcport->drport &&
5948 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
5949 				spin_unlock_irqrestore(&ha->vport_slock, flags);
5950 				qla2x00_rport_del(fcport);
5951 
5952 				spin_lock_irqsave(&ha->vport_slock, flags);
5953 			}
5954 		}
5955 		atomic_dec(&vha->vref_count);
5956 		wake_up(&vha->vref_waitq);
5957 	}
5958 	spin_unlock_irqrestore(&ha->vport_slock, flags);
5959 }
5960 
5961 /* Assumes idc_lock always held on entry */
5962 void
5963 qla83xx_reset_ownership(scsi_qla_host_t *vha)
5964 {
5965 	struct qla_hw_data *ha = vha->hw;
5966 	uint32_t drv_presence, drv_presence_mask;
5967 	uint32_t dev_part_info1, dev_part_info2, class_type;
5968 	uint32_t class_type_mask = 0x3;
5969 	uint16_t fcoe_other_function = 0xffff, i;
5970 
5971 	if (IS_QLA8044(ha)) {
5972 		drv_presence = qla8044_rd_direct(vha,
5973 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
5974 		dev_part_info1 = qla8044_rd_direct(vha,
5975 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
5976 		dev_part_info2 = qla8044_rd_direct(vha,
5977 		    QLA8044_CRB_DEV_PART_INFO2);
5978 	} else {
5979 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
5980 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
5981 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
5982 	}
5983 	for (i = 0; i < 8; i++) {
5984 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
5985 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
5986 		    (i != ha->portnum)) {
5987 			fcoe_other_function = i;
5988 			break;
5989 		}
5990 	}
5991 	if (fcoe_other_function == 0xffff) {
5992 		for (i = 0; i < 8; i++) {
5993 			class_type = ((dev_part_info2 >> (i * 4)) &
5994 			    class_type_mask);
5995 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
5996 			    ((i + 8) != ha->portnum)) {
5997 				fcoe_other_function = i + 8;
5998 				break;
5999 			}
6000 		}
6001 	}
6002 	/*
6003 	 * Prepare drv-presence mask based on fcoe functions present.
6004 	 * However consider only valid physical fcoe function numbers (0-15).
6005 	 */
6006 	drv_presence_mask = ~((1 << (ha->portnum)) |
6007 			((fcoe_other_function == 0xffff) ?
6008 			 0 : (1 << (fcoe_other_function))));
6009 
6010 	/* We are the reset owner iff:
6011 	 *    - No other protocol drivers present.
6012 	 *    - This is the lowest among fcoe functions. */
6013 	if (!(drv_presence & drv_presence_mask) &&
6014 			(ha->portnum < fcoe_other_function)) {
6015 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6016 		    "This host is Reset owner.\n");
6017 		ha->flags.nic_core_reset_owner = 1;
6018 	}
6019 }
6020 
6021 static int
6022 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6023 {
6024 	int rval = QLA_SUCCESS;
6025 	struct qla_hw_data *ha = vha->hw;
6026 	uint32_t drv_ack;
6027 
6028 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6029 	if (rval == QLA_SUCCESS) {
6030 		drv_ack |= (1 << ha->portnum);
6031 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6032 	}
6033 
6034 	return rval;
6035 }
6036 
6037 static int
6038 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6039 {
6040 	int rval = QLA_SUCCESS;
6041 	struct qla_hw_data *ha = vha->hw;
6042 	uint32_t drv_ack;
6043 
6044 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6045 	if (rval == QLA_SUCCESS) {
6046 		drv_ack &= ~(1 << ha->portnum);
6047 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6048 	}
6049 
6050 	return rval;
6051 }
6052 
6053 static const char *
6054 qla83xx_dev_state_to_string(uint32_t dev_state)
6055 {
6056 	switch (dev_state) {
6057 	case QLA8XXX_DEV_COLD:
6058 		return "COLD/RE-INIT";
6059 	case QLA8XXX_DEV_INITIALIZING:
6060 		return "INITIALIZING";
6061 	case QLA8XXX_DEV_READY:
6062 		return "READY";
6063 	case QLA8XXX_DEV_NEED_RESET:
6064 		return "NEED RESET";
6065 	case QLA8XXX_DEV_NEED_QUIESCENT:
6066 		return "NEED QUIESCENT";
6067 	case QLA8XXX_DEV_FAILED:
6068 		return "FAILED";
6069 	case QLA8XXX_DEV_QUIESCENT:
6070 		return "QUIESCENT";
6071 	default:
6072 		return "Unknown";
6073 	}
6074 }
6075 
6076 /* Assumes idc-lock always held on entry */
6077 void
6078 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6079 {
6080 	struct qla_hw_data *ha = vha->hw;
6081 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6082 
6083 	switch (audit_type) {
6084 	case IDC_AUDIT_TIMESTAMP:
6085 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6086 		idc_audit_reg = (ha->portnum) |
6087 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6088 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6089 		break;
6090 
6091 	case IDC_AUDIT_COMPLETION:
6092 		duration_secs = ((jiffies_to_msecs(jiffies) -
6093 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6094 		idc_audit_reg = (ha->portnum) |
6095 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6096 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6097 		break;
6098 
6099 	default:
6100 		ql_log(ql_log_warn, vha, 0xb078,
6101 		    "Invalid audit type specified.\n");
6102 		break;
6103 	}
6104 }
6105 
6106 /* Assumes idc_lock always held on entry */
6107 static int
6108 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6109 {
6110 	struct qla_hw_data *ha = vha->hw;
6111 	uint32_t  idc_control, dev_state;
6112 
6113 	__qla83xx_get_idc_control(vha, &idc_control);
6114 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6115 		ql_log(ql_log_info, vha, 0xb080,
6116 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6117 		    idc_control);
6118 		return QLA_FUNCTION_FAILED;
6119 	}
6120 
6121 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6122 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6123 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6124 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6125 		    QLA8XXX_DEV_NEED_RESET);
6126 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6127 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6128 	} else {
6129 		const char *state = qla83xx_dev_state_to_string(dev_state);
6130 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
6131 
6132 		/* SV: XXX: Is timeout required here? */
6133 		/* Wait for IDC state change READY -> NEED_RESET */
6134 		while (dev_state == QLA8XXX_DEV_READY) {
6135 			qla83xx_idc_unlock(vha, 0);
6136 			msleep(200);
6137 			qla83xx_idc_lock(vha, 0);
6138 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6139 		}
6140 	}
6141 
6142 	/* Send IDC ack by writing to drv-ack register */
6143 	__qla83xx_set_drv_ack(vha);
6144 
6145 	return QLA_SUCCESS;
6146 }
6147 
6148 int
6149 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6150 {
6151 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6152 }
6153 
6154 int
6155 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6156 {
6157 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6158 }
6159 
6160 static int
6161 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6162 {
6163 	uint32_t drv_presence = 0;
6164 	struct qla_hw_data *ha = vha->hw;
6165 
6166 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6167 	if (drv_presence & (1 << ha->portnum))
6168 		return QLA_SUCCESS;
6169 	else
6170 		return QLA_TEST_FAILED;
6171 }
6172 
6173 int
6174 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6175 {
6176 	int rval = QLA_SUCCESS;
6177 	struct qla_hw_data *ha = vha->hw;
6178 
6179 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6180 	    "Entered  %s().\n", __func__);
6181 
6182 	if (vha->device_flags & DFLG_DEV_FAILED) {
6183 		ql_log(ql_log_warn, vha, 0xb059,
6184 		    "Device in unrecoverable FAILED state.\n");
6185 		return QLA_FUNCTION_FAILED;
6186 	}
6187 
6188 	qla83xx_idc_lock(vha, 0);
6189 
6190 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6191 		ql_log(ql_log_warn, vha, 0xb05a,
6192 		    "Function=0x%x has been removed from IDC participation.\n",
6193 		    ha->portnum);
6194 		rval = QLA_FUNCTION_FAILED;
6195 		goto exit;
6196 	}
6197 
6198 	qla83xx_reset_ownership(vha);
6199 
6200 	rval = qla83xx_initiating_reset(vha);
6201 
6202 	/*
6203 	 * Perform reset if we are the reset-owner,
6204 	 * else wait till IDC state changes to READY/FAILED.
6205 	 */
6206 	if (rval == QLA_SUCCESS) {
6207 		rval = qla83xx_idc_state_handler(vha);
6208 
6209 		if (rval == QLA_SUCCESS)
6210 			ha->flags.nic_core_hung = 0;
6211 		__qla83xx_clear_drv_ack(vha);
6212 	}
6213 
6214 exit:
6215 	qla83xx_idc_unlock(vha, 0);
6216 
6217 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6218 
6219 	return rval;
6220 }
6221 
6222 int
6223 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6224 {
6225 	struct qla_hw_data *ha = vha->hw;
6226 	int rval = QLA_FUNCTION_FAILED;
6227 
6228 	if (!IS_MCTP_CAPABLE(ha)) {
6229 		/* This message can be removed from the final version */
6230 		ql_log(ql_log_info, vha, 0x506d,
6231 		    "This board is not MCTP capable\n");
6232 		return rval;
6233 	}
6234 
6235 	if (!ha->mctp_dump) {
6236 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6237 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6238 
6239 		if (!ha->mctp_dump) {
6240 			ql_log(ql_log_warn, vha, 0x506e,
6241 			    "Failed to allocate memory for mctp dump\n");
6242 			return rval;
6243 		}
6244 	}
6245 
6246 #define MCTP_DUMP_STR_ADDR	0x00000000
6247 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
6248 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
6249 	if (rval != QLA_SUCCESS) {
6250 		ql_log(ql_log_warn, vha, 0x506f,
6251 		    "Failed to capture mctp dump\n");
6252 	} else {
6253 		ql_log(ql_log_info, vha, 0x5070,
6254 		    "Mctp dump capture for host (%ld/%p).\n",
6255 		    vha->host_no, ha->mctp_dump);
6256 		ha->mctp_dumped = 1;
6257 	}
6258 
6259 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
6260 		ha->flags.nic_core_reset_hdlr_active = 1;
6261 		rval = qla83xx_restart_nic_firmware(vha);
6262 		if (rval)
6263 			/* NIC Core reset failed. */
6264 			ql_log(ql_log_warn, vha, 0x5071,
6265 			    "Failed to restart nic firmware\n");
6266 		else
6267 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
6268 			    "Restarted NIC firmware successfully.\n");
6269 		ha->flags.nic_core_reset_hdlr_active = 0;
6270 	}
6271 
6272 	return rval;
6273 
6274 }
6275 
6276 /*
6277 * qla2x00_quiesce_io
6278 * Description: This function will block the new I/Os
6279 *              Its not aborting any I/Os as context
6280 *              is not destroyed during quiescence
6281 * Arguments: scsi_qla_host_t
6282 * return   : void
6283 */
6284 void
6285 qla2x00_quiesce_io(scsi_qla_host_t *vha)
6286 {
6287 	struct qla_hw_data *ha = vha->hw;
6288 	struct scsi_qla_host *vp;
6289 
6290 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
6291 	    "Quiescing I/O - ha=%p.\n", ha);
6292 
6293 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
6294 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6295 		atomic_set(&vha->loop_state, LOOP_DOWN);
6296 		qla2x00_mark_all_devices_lost(vha, 0);
6297 		list_for_each_entry(vp, &ha->vp_list, list)
6298 			qla2x00_mark_all_devices_lost(vp, 0);
6299 	} else {
6300 		if (!atomic_read(&vha->loop_down_timer))
6301 			atomic_set(&vha->loop_down_timer,
6302 					LOOP_DOWN_TIME);
6303 	}
6304 	/* Wait for pending cmds to complete */
6305 	qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST);
6306 }
6307 
6308 void
6309 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
6310 {
6311 	struct qla_hw_data *ha = vha->hw;
6312 	struct scsi_qla_host *vp;
6313 	unsigned long flags;
6314 	fc_port_t *fcport;
6315 	u16 i;
6316 
6317 	/* For ISP82XX, driver waits for completion of the commands.
6318 	 * online flag should be set.
6319 	 */
6320 	if (!(IS_P3P_TYPE(ha)))
6321 		vha->flags.online = 0;
6322 	ha->flags.chip_reset_done = 0;
6323 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6324 	vha->qla_stats.total_isp_aborts++;
6325 
6326 	ql_log(ql_log_info, vha, 0x00af,
6327 	    "Performing ISP error recovery - ha=%p.\n", ha);
6328 
6329 	/* For ISP82XX, reset_chip is just disabling interrupts.
6330 	 * Driver waits for the completion of the commands.
6331 	 * the interrupts need to be enabled.
6332 	 */
6333 	if (!(IS_P3P_TYPE(ha)))
6334 		ha->isp_ops->reset_chip(vha);
6335 
6336 	SAVE_TOPO(ha);
6337 	ha->flags.rida_fmt2 = 0;
6338 	ha->flags.n2n_ae = 0;
6339 	ha->flags.lip_ae = 0;
6340 	ha->current_topology = 0;
6341 	ha->flags.fw_started = 0;
6342 	ha->flags.fw_init_done = 0;
6343 	ha->base_qpair->chip_reset++;
6344 	for (i = 0; i < ha->max_qpairs; i++) {
6345 		if (ha->queue_pair_map[i])
6346 			ha->queue_pair_map[i]->chip_reset =
6347 				ha->base_qpair->chip_reset;
6348 	}
6349 
6350 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
6351 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6352 		atomic_set(&vha->loop_state, LOOP_DOWN);
6353 		qla2x00_mark_all_devices_lost(vha, 0);
6354 
6355 		spin_lock_irqsave(&ha->vport_slock, flags);
6356 		list_for_each_entry(vp, &ha->vp_list, list) {
6357 			atomic_inc(&vp->vref_count);
6358 			spin_unlock_irqrestore(&ha->vport_slock, flags);
6359 
6360 			qla2x00_mark_all_devices_lost(vp, 0);
6361 
6362 			spin_lock_irqsave(&ha->vport_slock, flags);
6363 			atomic_dec(&vp->vref_count);
6364 		}
6365 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6366 	} else {
6367 		if (!atomic_read(&vha->loop_down_timer))
6368 			atomic_set(&vha->loop_down_timer,
6369 			    LOOP_DOWN_TIME);
6370 	}
6371 
6372 	/* Clear all async request states across all VPs. */
6373 	list_for_each_entry(fcport, &vha->vp_fcports, list)
6374 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6375 	spin_lock_irqsave(&ha->vport_slock, flags);
6376 	list_for_each_entry(vp, &ha->vp_list, list) {
6377 		atomic_inc(&vp->vref_count);
6378 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6379 
6380 		list_for_each_entry(fcport, &vp->vp_fcports, list)
6381 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6382 
6383 		spin_lock_irqsave(&ha->vport_slock, flags);
6384 		atomic_dec(&vp->vref_count);
6385 	}
6386 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6387 
6388 	if (!ha->flags.eeh_busy) {
6389 		/* Make sure for ISP 82XX IO DMA is complete */
6390 		if (IS_P3P_TYPE(ha)) {
6391 			qla82xx_chip_reset_cleanup(vha);
6392 			ql_log(ql_log_info, vha, 0x00b4,
6393 			    "Done chip reset cleanup.\n");
6394 
6395 			/* Done waiting for pending commands.
6396 			 * Reset the online flag.
6397 			 */
6398 			vha->flags.online = 0;
6399 		}
6400 
6401 		/* Requeue all commands in outstanding command list. */
6402 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
6403 	}
6404 	/* memory barrier */
6405 	wmb();
6406 }
6407 
6408 /*
6409 *  qla2x00_abort_isp
6410 *      Resets ISP and aborts all outstanding commands.
6411 *
6412 * Input:
6413 *      ha           = adapter block pointer.
6414 *
6415 * Returns:
6416 *      0 = success
6417 */
6418 int
6419 qla2x00_abort_isp(scsi_qla_host_t *vha)
6420 {
6421 	int rval;
6422 	uint8_t        status = 0;
6423 	struct qla_hw_data *ha = vha->hw;
6424 	struct scsi_qla_host *vp;
6425 	struct req_que *req = ha->req_q_map[0];
6426 	unsigned long flags;
6427 
6428 	if (vha->flags.online) {
6429 		qla2x00_abort_isp_cleanup(vha);
6430 
6431 		if (IS_QLA8031(ha)) {
6432 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
6433 			    "Clearing fcoe driver presence.\n");
6434 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
6435 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
6436 				    "Error while clearing DRV-Presence.\n");
6437 		}
6438 
6439 		if (unlikely(pci_channel_offline(ha->pdev) &&
6440 		    ha->flags.pci_channel_io_perm_failure)) {
6441 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6442 			status = 0;
6443 			return status;
6444 		}
6445 
6446 		ha->isp_ops->get_flash_version(vha, req->ring);
6447 
6448 		ha->isp_ops->nvram_config(vha);
6449 
6450 		if (!qla2x00_restart_isp(vha)) {
6451 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6452 
6453 			if (!atomic_read(&vha->loop_down_timer)) {
6454 				/*
6455 				 * Issue marker command only when we are going
6456 				 * to start the I/O .
6457 				 */
6458 				vha->marker_needed = 1;
6459 			}
6460 
6461 			vha->flags.online = 1;
6462 
6463 			ha->isp_ops->enable_intrs(ha);
6464 
6465 			ha->isp_abort_cnt = 0;
6466 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6467 
6468 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
6469 				qla2x00_get_fw_version(vha);
6470 			if (ha->fce) {
6471 				ha->flags.fce_enabled = 1;
6472 				memset(ha->fce, 0,
6473 				    fce_calc_size(ha->fce_bufs));
6474 				rval = qla2x00_enable_fce_trace(vha,
6475 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
6476 				    &ha->fce_bufs);
6477 				if (rval) {
6478 					ql_log(ql_log_warn, vha, 0x8033,
6479 					    "Unable to reinitialize FCE "
6480 					    "(%d).\n", rval);
6481 					ha->flags.fce_enabled = 0;
6482 				}
6483 			}
6484 
6485 			if (ha->eft) {
6486 				memset(ha->eft, 0, EFT_SIZE);
6487 				rval = qla2x00_enable_eft_trace(vha,
6488 				    ha->eft_dma, EFT_NUM_BUFFERS);
6489 				if (rval) {
6490 					ql_log(ql_log_warn, vha, 0x8034,
6491 					    "Unable to reinitialize EFT "
6492 					    "(%d).\n", rval);
6493 				}
6494 			}
6495 		} else {	/* failed the ISP abort */
6496 			vha->flags.online = 1;
6497 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
6498 				if (ha->isp_abort_cnt == 0) {
6499 					ql_log(ql_log_fatal, vha, 0x8035,
6500 					    "ISP error recover failed - "
6501 					    "board disabled.\n");
6502 					/*
6503 					 * The next call disables the board
6504 					 * completely.
6505 					 */
6506 					ha->isp_ops->reset_adapter(vha);
6507 					vha->flags.online = 0;
6508 					clear_bit(ISP_ABORT_RETRY,
6509 					    &vha->dpc_flags);
6510 					status = 0;
6511 				} else { /* schedule another ISP abort */
6512 					ha->isp_abort_cnt--;
6513 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
6514 					    "ISP abort - retry remaining %d.\n",
6515 					    ha->isp_abort_cnt);
6516 					status = 1;
6517 				}
6518 			} else {
6519 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
6520 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
6521 				    "ISP error recovery - retrying (%d) "
6522 				    "more times.\n", ha->isp_abort_cnt);
6523 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6524 				status = 1;
6525 			}
6526 		}
6527 
6528 	}
6529 
6530 	if (!status) {
6531 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
6532 		qla2x00_configure_hba(vha);
6533 		spin_lock_irqsave(&ha->vport_slock, flags);
6534 		list_for_each_entry(vp, &ha->vp_list, list) {
6535 			if (vp->vp_idx) {
6536 				atomic_inc(&vp->vref_count);
6537 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6538 
6539 				qla2x00_vp_abort_isp(vp);
6540 
6541 				spin_lock_irqsave(&ha->vport_slock, flags);
6542 				atomic_dec(&vp->vref_count);
6543 			}
6544 		}
6545 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6546 
6547 		if (IS_QLA8031(ha)) {
6548 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
6549 			    "Setting back fcoe driver presence.\n");
6550 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
6551 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
6552 				    "Error while setting DRV-Presence.\n");
6553 		}
6554 	} else {
6555 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
6556 		       __func__);
6557 	}
6558 
6559 	return(status);
6560 }
6561 
6562 /*
6563 *  qla2x00_restart_isp
6564 *      restarts the ISP after a reset
6565 *
6566 * Input:
6567 *      ha = adapter block pointer.
6568 *
6569 * Returns:
6570 *      0 = success
6571 */
6572 static int
6573 qla2x00_restart_isp(scsi_qla_host_t *vha)
6574 {
6575 	int status = 0;
6576 	struct qla_hw_data *ha = vha->hw;
6577 	struct req_que *req = ha->req_q_map[0];
6578 	struct rsp_que *rsp = ha->rsp_q_map[0];
6579 
6580 	/* If firmware needs to be loaded */
6581 	if (qla2x00_isp_firmware(vha)) {
6582 		vha->flags.online = 0;
6583 		status = ha->isp_ops->chip_diag(vha);
6584 		if (!status)
6585 			status = qla2x00_setup_chip(vha);
6586 	}
6587 
6588 	if (!status && !(status = qla2x00_init_rings(vha))) {
6589 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6590 		ha->flags.chip_reset_done = 1;
6591 
6592 		/* Initialize the queues in use */
6593 		qla25xx_init_queues(ha);
6594 
6595 		status = qla2x00_fw_ready(vha);
6596 		if (!status) {
6597 			/* Issue a marker after FW becomes ready. */
6598 			qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
6599 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6600 		}
6601 
6602 		/* if no cable then assume it's good */
6603 		if ((vha->device_flags & DFLG_NO_CABLE))
6604 			status = 0;
6605 	}
6606 	return (status);
6607 }
6608 
6609 static int
6610 qla25xx_init_queues(struct qla_hw_data *ha)
6611 {
6612 	struct rsp_que *rsp = NULL;
6613 	struct req_que *req = NULL;
6614 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
6615 	int ret = -1;
6616 	int i;
6617 
6618 	for (i = 1; i < ha->max_rsp_queues; i++) {
6619 		rsp = ha->rsp_q_map[i];
6620 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
6621 			rsp->options &= ~BIT_0;
6622 			ret = qla25xx_init_rsp_que(base_vha, rsp);
6623 			if (ret != QLA_SUCCESS)
6624 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
6625 				    "%s Rsp que: %d init failed.\n",
6626 				    __func__, rsp->id);
6627 			else
6628 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
6629 				    "%s Rsp que: %d inited.\n",
6630 				    __func__, rsp->id);
6631 		}
6632 	}
6633 	for (i = 1; i < ha->max_req_queues; i++) {
6634 		req = ha->req_q_map[i];
6635 		if (req && test_bit(i, ha->req_qid_map)) {
6636 			/* Clear outstanding commands array. */
6637 			req->options &= ~BIT_0;
6638 			ret = qla25xx_init_req_que(base_vha, req);
6639 			if (ret != QLA_SUCCESS)
6640 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
6641 				    "%s Req que: %d init failed.\n",
6642 				    __func__, req->id);
6643 			else
6644 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
6645 				    "%s Req que: %d inited.\n",
6646 				    __func__, req->id);
6647 		}
6648 	}
6649 	return ret;
6650 }
6651 
6652 /*
6653 * qla2x00_reset_adapter
6654 *      Reset adapter.
6655 *
6656 * Input:
6657 *      ha = adapter block pointer.
6658 */
6659 void
6660 qla2x00_reset_adapter(scsi_qla_host_t *vha)
6661 {
6662 	unsigned long flags = 0;
6663 	struct qla_hw_data *ha = vha->hw;
6664 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
6665 
6666 	vha->flags.online = 0;
6667 	ha->isp_ops->disable_intrs(ha);
6668 
6669 	spin_lock_irqsave(&ha->hardware_lock, flags);
6670 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
6671 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
6672 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
6673 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
6674 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
6675 }
6676 
6677 void
6678 qla24xx_reset_adapter(scsi_qla_host_t *vha)
6679 {
6680 	unsigned long flags = 0;
6681 	struct qla_hw_data *ha = vha->hw;
6682 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
6683 
6684 	if (IS_P3P_TYPE(ha))
6685 		return;
6686 
6687 	vha->flags.online = 0;
6688 	ha->isp_ops->disable_intrs(ha);
6689 
6690 	spin_lock_irqsave(&ha->hardware_lock, flags);
6691 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
6692 	RD_REG_DWORD(&reg->hccr);
6693 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
6694 	RD_REG_DWORD(&reg->hccr);
6695 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
6696 
6697 	if (IS_NOPOLLING_TYPE(ha))
6698 		ha->isp_ops->enable_intrs(ha);
6699 }
6700 
6701 /* On sparc systems, obtain port and node WWN from firmware
6702  * properties.
6703  */
6704 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
6705 	struct nvram_24xx *nv)
6706 {
6707 #ifdef CONFIG_SPARC
6708 	struct qla_hw_data *ha = vha->hw;
6709 	struct pci_dev *pdev = ha->pdev;
6710 	struct device_node *dp = pci_device_to_OF_node(pdev);
6711 	const u8 *val;
6712 	int len;
6713 
6714 	val = of_get_property(dp, "port-wwn", &len);
6715 	if (val && len >= WWN_SIZE)
6716 		memcpy(nv->port_name, val, WWN_SIZE);
6717 
6718 	val = of_get_property(dp, "node-wwn", &len);
6719 	if (val && len >= WWN_SIZE)
6720 		memcpy(nv->node_name, val, WWN_SIZE);
6721 #endif
6722 }
6723 
6724 int
6725 qla24xx_nvram_config(scsi_qla_host_t *vha)
6726 {
6727 	int   rval;
6728 	struct init_cb_24xx *icb;
6729 	struct nvram_24xx *nv;
6730 	uint32_t *dptr;
6731 	uint8_t  *dptr1, *dptr2;
6732 	uint32_t chksum;
6733 	uint16_t cnt;
6734 	struct qla_hw_data *ha = vha->hw;
6735 
6736 	rval = QLA_SUCCESS;
6737 	icb = (struct init_cb_24xx *)ha->init_cb;
6738 	nv = ha->nvram;
6739 
6740 	/* Determine NVRAM starting address. */
6741 	if (ha->port_no == 0) {
6742 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
6743 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
6744 	} else {
6745 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
6746 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
6747 	}
6748 
6749 	ha->nvram_size = sizeof(struct nvram_24xx);
6750 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
6751 
6752 	/* Get VPD data into cache */
6753 	ha->vpd = ha->nvram + VPD_OFFSET;
6754 	ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd,
6755 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
6756 
6757 	/* Get NVRAM data into cache and calculate checksum. */
6758 	dptr = (uint32_t *)nv;
6759 	ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base,
6760 	    ha->nvram_size);
6761 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
6762 		chksum += le32_to_cpu(*dptr);
6763 
6764 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
6765 	    "Contents of NVRAM\n");
6766 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
6767 	    (uint8_t *)nv, ha->nvram_size);
6768 
6769 	/* Bad NVRAM data, set defaults parameters. */
6770 	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
6771 	    || nv->id[3] != ' ' ||
6772 	    nv->nvram_version < cpu_to_le16(ICB_VERSION)) {
6773 		/* Reset NVRAM data. */
6774 		ql_log(ql_log_warn, vha, 0x006b,
6775 		    "Inconsistent NVRAM detected: checksum=0x%x id=%c "
6776 		    "version=0x%x.\n", chksum, nv->id[0], nv->nvram_version);
6777 		ql_log(ql_log_warn, vha, 0x006c,
6778 		    "Falling back to functioning (yet invalid -- WWPN) "
6779 		    "defaults.\n");
6780 
6781 		/*
6782 		 * Set default initialization control block.
6783 		 */
6784 		memset(nv, 0, ha->nvram_size);
6785 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
6786 		nv->version = cpu_to_le16(ICB_VERSION);
6787 		nv->frame_payload_size = 2048;
6788 		nv->execution_throttle = cpu_to_le16(0xFFFF);
6789 		nv->exchange_count = cpu_to_le16(0);
6790 		nv->hard_address = cpu_to_le16(124);
6791 		nv->port_name[0] = 0x21;
6792 		nv->port_name[1] = 0x00 + ha->port_no + 1;
6793 		nv->port_name[2] = 0x00;
6794 		nv->port_name[3] = 0xe0;
6795 		nv->port_name[4] = 0x8b;
6796 		nv->port_name[5] = 0x1c;
6797 		nv->port_name[6] = 0x55;
6798 		nv->port_name[7] = 0x86;
6799 		nv->node_name[0] = 0x20;
6800 		nv->node_name[1] = 0x00;
6801 		nv->node_name[2] = 0x00;
6802 		nv->node_name[3] = 0xe0;
6803 		nv->node_name[4] = 0x8b;
6804 		nv->node_name[5] = 0x1c;
6805 		nv->node_name[6] = 0x55;
6806 		nv->node_name[7] = 0x86;
6807 		qla24xx_nvram_wwn_from_ofw(vha, nv);
6808 		nv->login_retry_count = cpu_to_le16(8);
6809 		nv->interrupt_delay_timer = cpu_to_le16(0);
6810 		nv->login_timeout = cpu_to_le16(0);
6811 		nv->firmware_options_1 =
6812 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
6813 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
6814 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
6815 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
6816 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
6817 		nv->efi_parameters = cpu_to_le32(0);
6818 		nv->reset_delay = 5;
6819 		nv->max_luns_per_target = cpu_to_le16(128);
6820 		nv->port_down_retry_count = cpu_to_le16(30);
6821 		nv->link_down_timeout = cpu_to_le16(30);
6822 
6823 		rval = 1;
6824 	}
6825 
6826 	if (qla_tgt_mode_enabled(vha)) {
6827 		/* Don't enable full login after initial LIP */
6828 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
6829 		/* Don't enable LIP full login for initiator */
6830 		nv->host_p &= cpu_to_le32(~BIT_10);
6831 	}
6832 
6833 	qlt_24xx_config_nvram_stage1(vha, nv);
6834 
6835 	/* Reset Initialization control block */
6836 	memset(icb, 0, ha->init_cb_size);
6837 
6838 	/* Copy 1st segment. */
6839 	dptr1 = (uint8_t *)icb;
6840 	dptr2 = (uint8_t *)&nv->version;
6841 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
6842 	while (cnt--)
6843 		*dptr1++ = *dptr2++;
6844 
6845 	icb->login_retry_count = nv->login_retry_count;
6846 	icb->link_down_on_nos = nv->link_down_on_nos;
6847 
6848 	/* Copy 2nd segment. */
6849 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
6850 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
6851 	cnt = (uint8_t *)&icb->reserved_3 -
6852 	    (uint8_t *)&icb->interrupt_delay_timer;
6853 	while (cnt--)
6854 		*dptr1++ = *dptr2++;
6855 
6856 	/*
6857 	 * Setup driver NVRAM options.
6858 	 */
6859 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
6860 	    "QLA2462");
6861 
6862 	qlt_24xx_config_nvram_stage2(vha, icb);
6863 
6864 	if (nv->host_p & cpu_to_le32(BIT_15)) {
6865 		/* Use alternate WWN? */
6866 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
6867 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
6868 	}
6869 
6870 	/* Prepare nodename */
6871 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
6872 		/*
6873 		 * Firmware will apply the following mask if the nodename was
6874 		 * not provided.
6875 		 */
6876 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
6877 		icb->node_name[0] &= 0xF0;
6878 	}
6879 
6880 	/* Set host adapter parameters. */
6881 	ha->flags.disable_risc_code_load = 0;
6882 	ha->flags.enable_lip_reset = 0;
6883 	ha->flags.enable_lip_full_login =
6884 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
6885 	ha->flags.enable_target_reset =
6886 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
6887 	ha->flags.enable_led_scheme = 0;
6888 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
6889 
6890 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
6891 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
6892 
6893 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
6894 	    sizeof(ha->fw_seriallink_options24));
6895 
6896 	/* save HBA serial number */
6897 	ha->serial0 = icb->port_name[5];
6898 	ha->serial1 = icb->port_name[6];
6899 	ha->serial2 = icb->port_name[7];
6900 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
6901 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
6902 
6903 	icb->execution_throttle = cpu_to_le16(0xFFFF);
6904 
6905 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
6906 
6907 	/* Set minimum login_timeout to 4 seconds. */
6908 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
6909 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
6910 	if (le16_to_cpu(nv->login_timeout) < 4)
6911 		nv->login_timeout = cpu_to_le16(4);
6912 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
6913 
6914 	/* Set minimum RATOV to 100 tenths of a second. */
6915 	ha->r_a_tov = 100;
6916 
6917 	ha->loop_reset_delay = nv->reset_delay;
6918 
6919 	/* Link Down Timeout = 0:
6920 	 *
6921 	 * 	When Port Down timer expires we will start returning
6922 	 *	I/O's to OS with "DID_NO_CONNECT".
6923 	 *
6924 	 * Link Down Timeout != 0:
6925 	 *
6926 	 *	 The driver waits for the link to come up after link down
6927 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
6928 	 */
6929 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
6930 		ha->loop_down_abort_time =
6931 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
6932 	} else {
6933 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
6934 		ha->loop_down_abort_time =
6935 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
6936 	}
6937 
6938 	/* Need enough time to try and get the port back. */
6939 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
6940 	if (qlport_down_retry)
6941 		ha->port_down_retry_count = qlport_down_retry;
6942 
6943 	/* Set login_retry_count */
6944 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
6945 	if (ha->port_down_retry_count ==
6946 	    le16_to_cpu(nv->port_down_retry_count) &&
6947 	    ha->port_down_retry_count > 3)
6948 		ha->login_retry_count = ha->port_down_retry_count;
6949 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
6950 		ha->login_retry_count = ha->port_down_retry_count;
6951 	if (ql2xloginretrycount)
6952 		ha->login_retry_count = ql2xloginretrycount;
6953 
6954 	/* Enable ZIO. */
6955 	if (!vha->flags.init_done) {
6956 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
6957 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
6958 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
6959 		    le16_to_cpu(icb->interrupt_delay_timer): 2;
6960 	}
6961 	icb->firmware_options_2 &= cpu_to_le32(
6962 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
6963 	vha->flags.process_response_queue = 0;
6964 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
6965 		ha->zio_mode = QLA_ZIO_MODE_6;
6966 
6967 		ql_log(ql_log_info, vha, 0x006f,
6968 		    "ZIO mode %d enabled; timer delay (%d us).\n",
6969 		    ha->zio_mode, ha->zio_timer * 100);
6970 
6971 		icb->firmware_options_2 |= cpu_to_le32(
6972 		    (uint32_t)ha->zio_mode);
6973 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
6974 		vha->flags.process_response_queue = 1;
6975 	}
6976 
6977 	if (rval) {
6978 		ql_log(ql_log_warn, vha, 0x0070,
6979 		    "NVRAM configuration failed.\n");
6980 	}
6981 	return (rval);
6982 }
6983 
6984 uint8_t qla27xx_find_valid_image(struct scsi_qla_host *vha)
6985 {
6986 	struct qla27xx_image_status pri_image_status, sec_image_status;
6987 	uint8_t valid_pri_image, valid_sec_image;
6988 	uint32_t *wptr;
6989 	uint32_t cnt, chksum, size;
6990 	struct qla_hw_data *ha = vha->hw;
6991 
6992 	valid_pri_image = valid_sec_image = 1;
6993 	ha->active_image = 0;
6994 	size = sizeof(struct qla27xx_image_status) / sizeof(uint32_t);
6995 
6996 	if (!ha->flt_region_img_status_pri) {
6997 		valid_pri_image = 0;
6998 		goto check_sec_image;
6999 	}
7000 
7001 	qla24xx_read_flash_data(vha, (uint32_t *)(&pri_image_status),
7002 	    ha->flt_region_img_status_pri, size);
7003 
7004 	if (pri_image_status.signature != QLA27XX_IMG_STATUS_SIGN) {
7005 		ql_dbg(ql_dbg_init, vha, 0x018b,
7006 		    "Primary image signature (0x%x) not valid\n",
7007 		    pri_image_status.signature);
7008 		valid_pri_image = 0;
7009 		goto check_sec_image;
7010 	}
7011 
7012 	wptr = (uint32_t *)(&pri_image_status);
7013 	cnt = size;
7014 
7015 	for (chksum = 0; cnt--; wptr++)
7016 		chksum += le32_to_cpu(*wptr);
7017 
7018 	if (chksum) {
7019 		ql_dbg(ql_dbg_init, vha, 0x018c,
7020 		    "Checksum validation failed for primary image (0x%x)\n",
7021 		    chksum);
7022 		valid_pri_image = 0;
7023 	}
7024 
7025 check_sec_image:
7026 	if (!ha->flt_region_img_status_sec) {
7027 		valid_sec_image = 0;
7028 		goto check_valid_image;
7029 	}
7030 
7031 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
7032 	    ha->flt_region_img_status_sec, size);
7033 
7034 	if (sec_image_status.signature != QLA27XX_IMG_STATUS_SIGN) {
7035 		ql_dbg(ql_dbg_init, vha, 0x018d,
7036 		    "Secondary image signature(0x%x) not valid\n",
7037 		    sec_image_status.signature);
7038 		valid_sec_image = 0;
7039 		goto check_valid_image;
7040 	}
7041 
7042 	wptr = (uint32_t *)(&sec_image_status);
7043 	cnt = size;
7044 	for (chksum = 0; cnt--; wptr++)
7045 		chksum += le32_to_cpu(*wptr);
7046 	if (chksum) {
7047 		ql_dbg(ql_dbg_init, vha, 0x018e,
7048 		    "Checksum validation failed for secondary image (0x%x)\n",
7049 		    chksum);
7050 		valid_sec_image = 0;
7051 	}
7052 
7053 check_valid_image:
7054 	if (valid_pri_image && (pri_image_status.image_status_mask & 0x1))
7055 		ha->active_image = QLA27XX_PRIMARY_IMAGE;
7056 	if (valid_sec_image && (sec_image_status.image_status_mask & 0x1)) {
7057 		if (!ha->active_image ||
7058 		    pri_image_status.generation_number <
7059 		    sec_image_status.generation_number)
7060 			ha->active_image = QLA27XX_SECONDARY_IMAGE;
7061 	}
7062 
7063 	ql_dbg(ql_dbg_init, vha, 0x018f, "%s image\n",
7064 	    ha->active_image == 0 ? "default bootld and fw" :
7065 	    ha->active_image == 1 ? "primary" :
7066 	    ha->active_image == 2 ? "secondary" :
7067 	    "Invalid");
7068 
7069 	return ha->active_image;
7070 }
7071 
7072 static int
7073 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
7074     uint32_t faddr)
7075 {
7076 	int	rval = QLA_SUCCESS;
7077 	int	segments, fragment;
7078 	uint32_t *dcode, dlen;
7079 	uint32_t risc_addr;
7080 	uint32_t risc_size;
7081 	uint32_t i;
7082 	struct qla_hw_data *ha = vha->hw;
7083 	struct req_que *req = ha->req_q_map[0];
7084 
7085 	ql_dbg(ql_dbg_init, vha, 0x008b,
7086 	    "FW: Loading firmware from flash (%x).\n", faddr);
7087 
7088 	rval = QLA_SUCCESS;
7089 
7090 	segments = FA_RISC_CODE_SEGMENTS;
7091 	dcode = (uint32_t *)req->ring;
7092 	*srisc_addr = 0;
7093 
7094 	if (IS_QLA27XX(ha) &&
7095 	    qla27xx_find_valid_image(vha) == QLA27XX_SECONDARY_IMAGE)
7096 		faddr = ha->flt_region_fw_sec;
7097 
7098 	/* Validate firmware image by checking version. */
7099 	qla24xx_read_flash_data(vha, dcode, faddr + 4, 4);
7100 	for (i = 0; i < 4; i++)
7101 		dcode[i] = be32_to_cpu(dcode[i]);
7102 	if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
7103 	    dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
7104 	    (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
7105 		dcode[3] == 0)) {
7106 		ql_log(ql_log_fatal, vha, 0x008c,
7107 		    "Unable to verify the integrity of flash firmware "
7108 		    "image.\n");
7109 		ql_log(ql_log_fatal, vha, 0x008d,
7110 		    "Firmware data: %08x %08x %08x %08x.\n",
7111 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7112 
7113 		return QLA_FUNCTION_FAILED;
7114 	}
7115 
7116 	while (segments && rval == QLA_SUCCESS) {
7117 		/* Read segment's load information. */
7118 		qla24xx_read_flash_data(vha, dcode, faddr, 4);
7119 
7120 		risc_addr = be32_to_cpu(dcode[2]);
7121 		*srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
7122 		risc_size = be32_to_cpu(dcode[3]);
7123 
7124 		fragment = 0;
7125 		while (risc_size > 0 && rval == QLA_SUCCESS) {
7126 			dlen = (uint32_t)(ha->fw_transfer_size >> 2);
7127 			if (dlen > risc_size)
7128 				dlen = risc_size;
7129 
7130 			ql_dbg(ql_dbg_init, vha, 0x008e,
7131 			    "Loading risc segment@ risc addr %x "
7132 			    "number of dwords 0x%x offset 0x%x.\n",
7133 			    risc_addr, dlen, faddr);
7134 
7135 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
7136 			for (i = 0; i < dlen; i++)
7137 				dcode[i] = swab32(dcode[i]);
7138 
7139 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
7140 			    dlen);
7141 			if (rval) {
7142 				ql_log(ql_log_fatal, vha, 0x008f,
7143 				    "Failed to load segment %d of firmware.\n",
7144 				    fragment);
7145 				return QLA_FUNCTION_FAILED;
7146 			}
7147 
7148 			faddr += dlen;
7149 			risc_addr += dlen;
7150 			risc_size -= dlen;
7151 			fragment++;
7152 		}
7153 
7154 		/* Next segment. */
7155 		segments--;
7156 	}
7157 
7158 	if (!IS_QLA27XX(ha))
7159 		return rval;
7160 
7161 	if (ha->fw_dump_template)
7162 		vfree(ha->fw_dump_template);
7163 	ha->fw_dump_template = NULL;
7164 	ha->fw_dump_template_len = 0;
7165 
7166 	ql_dbg(ql_dbg_init, vha, 0x0161,
7167 	    "Loading fwdump template from %x\n", faddr);
7168 	qla24xx_read_flash_data(vha, dcode, faddr, 7);
7169 	risc_size = be32_to_cpu(dcode[2]);
7170 	ql_dbg(ql_dbg_init, vha, 0x0162,
7171 	    "-> array size %x dwords\n", risc_size);
7172 	if (risc_size == 0 || risc_size == ~0)
7173 		goto default_template;
7174 
7175 	dlen = (risc_size - 8) * sizeof(*dcode);
7176 	ql_dbg(ql_dbg_init, vha, 0x0163,
7177 	    "-> template allocating %x bytes...\n", dlen);
7178 	ha->fw_dump_template = vmalloc(dlen);
7179 	if (!ha->fw_dump_template) {
7180 		ql_log(ql_log_warn, vha, 0x0164,
7181 		    "Failed fwdump template allocate %x bytes.\n", risc_size);
7182 		goto default_template;
7183 	}
7184 
7185 	faddr += 7;
7186 	risc_size -= 8;
7187 	dcode = ha->fw_dump_template;
7188 	qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
7189 	for (i = 0; i < risc_size; i++)
7190 		dcode[i] = le32_to_cpu(dcode[i]);
7191 
7192 	if (!qla27xx_fwdt_template_valid(dcode)) {
7193 		ql_log(ql_log_warn, vha, 0x0165,
7194 		    "Failed fwdump template validate\n");
7195 		goto default_template;
7196 	}
7197 
7198 	dlen = qla27xx_fwdt_template_size(dcode);
7199 	ql_dbg(ql_dbg_init, vha, 0x0166,
7200 	    "-> template size %x bytes\n", dlen);
7201 	if (dlen > risc_size * sizeof(*dcode)) {
7202 		ql_log(ql_log_warn, vha, 0x0167,
7203 		    "Failed fwdump template exceeds array by %zx bytes\n",
7204 		    (size_t)(dlen - risc_size * sizeof(*dcode)));
7205 		goto default_template;
7206 	}
7207 	ha->fw_dump_template_len = dlen;
7208 	return rval;
7209 
7210 default_template:
7211 	ql_log(ql_log_warn, vha, 0x0168, "Using default fwdump template\n");
7212 	if (ha->fw_dump_template)
7213 		vfree(ha->fw_dump_template);
7214 	ha->fw_dump_template = NULL;
7215 	ha->fw_dump_template_len = 0;
7216 
7217 	dlen = qla27xx_fwdt_template_default_size();
7218 	ql_dbg(ql_dbg_init, vha, 0x0169,
7219 	    "-> template allocating %x bytes...\n", dlen);
7220 	ha->fw_dump_template = vmalloc(dlen);
7221 	if (!ha->fw_dump_template) {
7222 		ql_log(ql_log_warn, vha, 0x016a,
7223 		    "Failed fwdump template allocate %x bytes.\n", risc_size);
7224 		goto failed_template;
7225 	}
7226 
7227 	dcode = ha->fw_dump_template;
7228 	risc_size = dlen / sizeof(*dcode);
7229 	memcpy(dcode, qla27xx_fwdt_template_default(), dlen);
7230 	for (i = 0; i < risc_size; i++)
7231 		dcode[i] = be32_to_cpu(dcode[i]);
7232 
7233 	if (!qla27xx_fwdt_template_valid(ha->fw_dump_template)) {
7234 		ql_log(ql_log_warn, vha, 0x016b,
7235 		    "Failed fwdump template validate\n");
7236 		goto failed_template;
7237 	}
7238 
7239 	dlen = qla27xx_fwdt_template_size(ha->fw_dump_template);
7240 	ql_dbg(ql_dbg_init, vha, 0x016c,
7241 	    "-> template size %x bytes\n", dlen);
7242 	ha->fw_dump_template_len = dlen;
7243 	return rval;
7244 
7245 failed_template:
7246 	ql_log(ql_log_warn, vha, 0x016d, "Failed default fwdump template\n");
7247 	if (ha->fw_dump_template)
7248 		vfree(ha->fw_dump_template);
7249 	ha->fw_dump_template = NULL;
7250 	ha->fw_dump_template_len = 0;
7251 	return rval;
7252 }
7253 
7254 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
7255 
7256 int
7257 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7258 {
7259 	int	rval;
7260 	int	i, fragment;
7261 	uint16_t *wcode, *fwcode;
7262 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
7263 	struct fw_blob *blob;
7264 	struct qla_hw_data *ha = vha->hw;
7265 	struct req_que *req = ha->req_q_map[0];
7266 
7267 	/* Load firmware blob. */
7268 	blob = qla2x00_request_firmware(vha);
7269 	if (!blob) {
7270 		ql_log(ql_log_info, vha, 0x0083,
7271 		    "Firmware image unavailable.\n");
7272 		ql_log(ql_log_info, vha, 0x0084,
7273 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
7274 		return QLA_FUNCTION_FAILED;
7275 	}
7276 
7277 	rval = QLA_SUCCESS;
7278 
7279 	wcode = (uint16_t *)req->ring;
7280 	*srisc_addr = 0;
7281 	fwcode = (uint16_t *)blob->fw->data;
7282 	fwclen = 0;
7283 
7284 	/* Validate firmware image by checking version. */
7285 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
7286 		ql_log(ql_log_fatal, vha, 0x0085,
7287 		    "Unable to verify integrity of firmware image (%zd).\n",
7288 		    blob->fw->size);
7289 		goto fail_fw_integrity;
7290 	}
7291 	for (i = 0; i < 4; i++)
7292 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
7293 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
7294 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
7295 		wcode[2] == 0 && wcode[3] == 0)) {
7296 		ql_log(ql_log_fatal, vha, 0x0086,
7297 		    "Unable to verify integrity of firmware image.\n");
7298 		ql_log(ql_log_fatal, vha, 0x0087,
7299 		    "Firmware data: %04x %04x %04x %04x.\n",
7300 		    wcode[0], wcode[1], wcode[2], wcode[3]);
7301 		goto fail_fw_integrity;
7302 	}
7303 
7304 	seg = blob->segs;
7305 	while (*seg && rval == QLA_SUCCESS) {
7306 		risc_addr = *seg;
7307 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
7308 		risc_size = be16_to_cpu(fwcode[3]);
7309 
7310 		/* Validate firmware image size. */
7311 		fwclen += risc_size * sizeof(uint16_t);
7312 		if (blob->fw->size < fwclen) {
7313 			ql_log(ql_log_fatal, vha, 0x0088,
7314 			    "Unable to verify integrity of firmware image "
7315 			    "(%zd).\n", blob->fw->size);
7316 			goto fail_fw_integrity;
7317 		}
7318 
7319 		fragment = 0;
7320 		while (risc_size > 0 && rval == QLA_SUCCESS) {
7321 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
7322 			if (wlen > risc_size)
7323 				wlen = risc_size;
7324 			ql_dbg(ql_dbg_init, vha, 0x0089,
7325 			    "Loading risc segment@ risc addr %x number of "
7326 			    "words 0x%x.\n", risc_addr, wlen);
7327 
7328 			for (i = 0; i < wlen; i++)
7329 				wcode[i] = swab16(fwcode[i]);
7330 
7331 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
7332 			    wlen);
7333 			if (rval) {
7334 				ql_log(ql_log_fatal, vha, 0x008a,
7335 				    "Failed to load segment %d of firmware.\n",
7336 				    fragment);
7337 				break;
7338 			}
7339 
7340 			fwcode += wlen;
7341 			risc_addr += wlen;
7342 			risc_size -= wlen;
7343 			fragment++;
7344 		}
7345 
7346 		/* Next segment. */
7347 		seg++;
7348 	}
7349 	return rval;
7350 
7351 fail_fw_integrity:
7352 	return QLA_FUNCTION_FAILED;
7353 }
7354 
7355 static int
7356 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7357 {
7358 	int	rval;
7359 	int	segments, fragment;
7360 	uint32_t *dcode, dlen;
7361 	uint32_t risc_addr;
7362 	uint32_t risc_size;
7363 	uint32_t i;
7364 	struct fw_blob *blob;
7365 	const uint32_t *fwcode;
7366 	uint32_t fwclen;
7367 	struct qla_hw_data *ha = vha->hw;
7368 	struct req_que *req = ha->req_q_map[0];
7369 
7370 	/* Load firmware blob. */
7371 	blob = qla2x00_request_firmware(vha);
7372 	if (!blob) {
7373 		ql_log(ql_log_warn, vha, 0x0090,
7374 		    "Firmware image unavailable.\n");
7375 		ql_log(ql_log_warn, vha, 0x0091,
7376 		    "Firmware images can be retrieved from: "
7377 		    QLA_FW_URL ".\n");
7378 
7379 		return QLA_FUNCTION_FAILED;
7380 	}
7381 
7382 	ql_dbg(ql_dbg_init, vha, 0x0092,
7383 	    "FW: Loading via request-firmware.\n");
7384 
7385 	rval = QLA_SUCCESS;
7386 
7387 	segments = FA_RISC_CODE_SEGMENTS;
7388 	dcode = (uint32_t *)req->ring;
7389 	*srisc_addr = 0;
7390 	fwcode = (uint32_t *)blob->fw->data;
7391 	fwclen = 0;
7392 
7393 	/* Validate firmware image by checking version. */
7394 	if (blob->fw->size < 8 * sizeof(uint32_t)) {
7395 		ql_log(ql_log_fatal, vha, 0x0093,
7396 		    "Unable to verify integrity of firmware image (%zd).\n",
7397 		    blob->fw->size);
7398 		return QLA_FUNCTION_FAILED;
7399 	}
7400 	for (i = 0; i < 4; i++)
7401 		dcode[i] = be32_to_cpu(fwcode[i + 4]);
7402 	if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
7403 	    dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
7404 	    (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
7405 		dcode[3] == 0)) {
7406 		ql_log(ql_log_fatal, vha, 0x0094,
7407 		    "Unable to verify integrity of firmware image (%zd).\n",
7408 		    blob->fw->size);
7409 		ql_log(ql_log_fatal, vha, 0x0095,
7410 		    "Firmware data: %08x %08x %08x %08x.\n",
7411 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7412 		return QLA_FUNCTION_FAILED;
7413 	}
7414 
7415 	while (segments && rval == QLA_SUCCESS) {
7416 		risc_addr = be32_to_cpu(fwcode[2]);
7417 		*srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
7418 		risc_size = be32_to_cpu(fwcode[3]);
7419 
7420 		/* Validate firmware image size. */
7421 		fwclen += risc_size * sizeof(uint32_t);
7422 		if (blob->fw->size < fwclen) {
7423 			ql_log(ql_log_fatal, vha, 0x0096,
7424 			    "Unable to verify integrity of firmware image "
7425 			    "(%zd).\n", blob->fw->size);
7426 			return QLA_FUNCTION_FAILED;
7427 		}
7428 
7429 		fragment = 0;
7430 		while (risc_size > 0 && rval == QLA_SUCCESS) {
7431 			dlen = (uint32_t)(ha->fw_transfer_size >> 2);
7432 			if (dlen > risc_size)
7433 				dlen = risc_size;
7434 
7435 			ql_dbg(ql_dbg_init, vha, 0x0097,
7436 			    "Loading risc segment@ risc addr %x "
7437 			    "number of dwords 0x%x.\n", risc_addr, dlen);
7438 
7439 			for (i = 0; i < dlen; i++)
7440 				dcode[i] = swab32(fwcode[i]);
7441 
7442 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
7443 			    dlen);
7444 			if (rval) {
7445 				ql_log(ql_log_fatal, vha, 0x0098,
7446 				    "Failed to load segment %d of firmware.\n",
7447 				    fragment);
7448 				return QLA_FUNCTION_FAILED;
7449 			}
7450 
7451 			fwcode += dlen;
7452 			risc_addr += dlen;
7453 			risc_size -= dlen;
7454 			fragment++;
7455 		}
7456 
7457 		/* Next segment. */
7458 		segments--;
7459 	}
7460 
7461 	if (!IS_QLA27XX(ha))
7462 		return rval;
7463 
7464 	if (ha->fw_dump_template)
7465 		vfree(ha->fw_dump_template);
7466 	ha->fw_dump_template = NULL;
7467 	ha->fw_dump_template_len = 0;
7468 
7469 	ql_dbg(ql_dbg_init, vha, 0x171,
7470 	    "Loading fwdump template from %x\n",
7471 	    (uint32_t)((void *)fwcode - (void *)blob->fw->data));
7472 	risc_size = be32_to_cpu(fwcode[2]);
7473 	ql_dbg(ql_dbg_init, vha, 0x172,
7474 	    "-> array size %x dwords\n", risc_size);
7475 	if (risc_size == 0 || risc_size == ~0)
7476 		goto default_template;
7477 
7478 	dlen = (risc_size - 8) * sizeof(*fwcode);
7479 	ql_dbg(ql_dbg_init, vha, 0x0173,
7480 	    "-> template allocating %x bytes...\n", dlen);
7481 	ha->fw_dump_template = vmalloc(dlen);
7482 	if (!ha->fw_dump_template) {
7483 		ql_log(ql_log_warn, vha, 0x0174,
7484 		    "Failed fwdump template allocate %x bytes.\n", risc_size);
7485 		goto default_template;
7486 	}
7487 
7488 	fwcode += 7;
7489 	risc_size -= 8;
7490 	dcode = ha->fw_dump_template;
7491 	for (i = 0; i < risc_size; i++)
7492 		dcode[i] = le32_to_cpu(fwcode[i]);
7493 
7494 	if (!qla27xx_fwdt_template_valid(dcode)) {
7495 		ql_log(ql_log_warn, vha, 0x0175,
7496 		    "Failed fwdump template validate\n");
7497 		goto default_template;
7498 	}
7499 
7500 	dlen = qla27xx_fwdt_template_size(dcode);
7501 	ql_dbg(ql_dbg_init, vha, 0x0176,
7502 	    "-> template size %x bytes\n", dlen);
7503 	if (dlen > risc_size * sizeof(*fwcode)) {
7504 		ql_log(ql_log_warn, vha, 0x0177,
7505 		    "Failed fwdump template exceeds array by %zx bytes\n",
7506 		    (size_t)(dlen - risc_size * sizeof(*fwcode)));
7507 		goto default_template;
7508 	}
7509 	ha->fw_dump_template_len = dlen;
7510 	return rval;
7511 
7512 default_template:
7513 	ql_log(ql_log_warn, vha, 0x0178, "Using default fwdump template\n");
7514 	if (ha->fw_dump_template)
7515 		vfree(ha->fw_dump_template);
7516 	ha->fw_dump_template = NULL;
7517 	ha->fw_dump_template_len = 0;
7518 
7519 	dlen = qla27xx_fwdt_template_default_size();
7520 	ql_dbg(ql_dbg_init, vha, 0x0179,
7521 	    "-> template allocating %x bytes...\n", dlen);
7522 	ha->fw_dump_template = vmalloc(dlen);
7523 	if (!ha->fw_dump_template) {
7524 		ql_log(ql_log_warn, vha, 0x017a,
7525 		    "Failed fwdump template allocate %x bytes.\n", risc_size);
7526 		goto failed_template;
7527 	}
7528 
7529 	dcode = ha->fw_dump_template;
7530 	risc_size = dlen / sizeof(*fwcode);
7531 	fwcode = qla27xx_fwdt_template_default();
7532 	for (i = 0; i < risc_size; i++)
7533 		dcode[i] = be32_to_cpu(fwcode[i]);
7534 
7535 	if (!qla27xx_fwdt_template_valid(ha->fw_dump_template)) {
7536 		ql_log(ql_log_warn, vha, 0x017b,
7537 		    "Failed fwdump template validate\n");
7538 		goto failed_template;
7539 	}
7540 
7541 	dlen = qla27xx_fwdt_template_size(ha->fw_dump_template);
7542 	ql_dbg(ql_dbg_init, vha, 0x017c,
7543 	    "-> template size %x bytes\n", dlen);
7544 	ha->fw_dump_template_len = dlen;
7545 	return rval;
7546 
7547 failed_template:
7548 	ql_log(ql_log_warn, vha, 0x017d, "Failed default fwdump template\n");
7549 	if (ha->fw_dump_template)
7550 		vfree(ha->fw_dump_template);
7551 	ha->fw_dump_template = NULL;
7552 	ha->fw_dump_template_len = 0;
7553 	return rval;
7554 }
7555 
7556 int
7557 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7558 {
7559 	int rval;
7560 
7561 	if (ql2xfwloadbin == 1)
7562 		return qla81xx_load_risc(vha, srisc_addr);
7563 
7564 	/*
7565 	 * FW Load priority:
7566 	 * 1) Firmware via request-firmware interface (.bin file).
7567 	 * 2) Firmware residing in flash.
7568 	 */
7569 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
7570 	if (rval == QLA_SUCCESS)
7571 		return rval;
7572 
7573 	return qla24xx_load_risc_flash(vha, srisc_addr,
7574 	    vha->hw->flt_region_fw);
7575 }
7576 
7577 int
7578 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7579 {
7580 	int rval;
7581 	struct qla_hw_data *ha = vha->hw;
7582 
7583 	if (ql2xfwloadbin == 2)
7584 		goto try_blob_fw;
7585 
7586 	/*
7587 	 * FW Load priority:
7588 	 * 1) Firmware residing in flash.
7589 	 * 2) Firmware via request-firmware interface (.bin file).
7590 	 * 3) Golden-Firmware residing in flash -- limited operation.
7591 	 */
7592 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
7593 	if (rval == QLA_SUCCESS)
7594 		return rval;
7595 
7596 try_blob_fw:
7597 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
7598 	if (rval == QLA_SUCCESS || !ha->flt_region_gold_fw)
7599 		return rval;
7600 
7601 	ql_log(ql_log_info, vha, 0x0099,
7602 	    "Attempting to fallback to golden firmware.\n");
7603 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
7604 	if (rval != QLA_SUCCESS)
7605 		return rval;
7606 
7607 	ql_log(ql_log_info, vha, 0x009a, "Update operational firmware.\n");
7608 	ha->flags.running_gold_fw = 1;
7609 	return rval;
7610 }
7611 
7612 void
7613 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
7614 {
7615 	int ret, retries;
7616 	struct qla_hw_data *ha = vha->hw;
7617 
7618 	if (ha->flags.pci_channel_io_perm_failure)
7619 		return;
7620 	if (!IS_FWI2_CAPABLE(ha))
7621 		return;
7622 	if (!ha->fw_major_version)
7623 		return;
7624 	if (!ha->flags.fw_started)
7625 		return;
7626 
7627 	ret = qla2x00_stop_firmware(vha);
7628 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
7629 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
7630 		ha->isp_ops->reset_chip(vha);
7631 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
7632 			continue;
7633 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
7634 			continue;
7635 		ql_log(ql_log_info, vha, 0x8015,
7636 		    "Attempting retry of stop-firmware command.\n");
7637 		ret = qla2x00_stop_firmware(vha);
7638 	}
7639 
7640 	QLA_FW_STOPPED(ha);
7641 	ha->flags.fw_init_done = 0;
7642 }
7643 
7644 int
7645 qla24xx_configure_vhba(scsi_qla_host_t *vha)
7646 {
7647 	int rval = QLA_SUCCESS;
7648 	int rval2;
7649 	uint16_t mb[MAILBOX_REGISTER_COUNT];
7650 	struct qla_hw_data *ha = vha->hw;
7651 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7652 	struct req_que *req;
7653 	struct rsp_que *rsp;
7654 
7655 	if (!vha->vp_idx)
7656 		return -EINVAL;
7657 
7658 	rval = qla2x00_fw_ready(base_vha);
7659 	if (vha->qpair)
7660 		req = vha->qpair->req;
7661 	else
7662 		req = ha->req_q_map[0];
7663 	rsp = req->rsp;
7664 
7665 	if (rval == QLA_SUCCESS) {
7666 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7667 		qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
7668 	}
7669 
7670 	vha->flags.management_server_logged_in = 0;
7671 
7672 	/* Login to SNS first */
7673 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
7674 	    BIT_1);
7675 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
7676 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
7677 			ql_dbg(ql_dbg_init, vha, 0x0120,
7678 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
7679 			    NPH_SNS, rval2);
7680 		else
7681 			ql_dbg(ql_dbg_init, vha, 0x0103,
7682 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
7683 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
7684 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
7685 		return (QLA_FUNCTION_FAILED);
7686 	}
7687 
7688 	atomic_set(&vha->loop_down_timer, 0);
7689 	atomic_set(&vha->loop_state, LOOP_UP);
7690 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
7691 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
7692 	rval = qla2x00_loop_resync(base_vha);
7693 
7694 	return rval;
7695 }
7696 
7697 /* 84XX Support **************************************************************/
7698 
7699 static LIST_HEAD(qla_cs84xx_list);
7700 static DEFINE_MUTEX(qla_cs84xx_mutex);
7701 
7702 static struct qla_chip_state_84xx *
7703 qla84xx_get_chip(struct scsi_qla_host *vha)
7704 {
7705 	struct qla_chip_state_84xx *cs84xx;
7706 	struct qla_hw_data *ha = vha->hw;
7707 
7708 	mutex_lock(&qla_cs84xx_mutex);
7709 
7710 	/* Find any shared 84xx chip. */
7711 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
7712 		if (cs84xx->bus == ha->pdev->bus) {
7713 			kref_get(&cs84xx->kref);
7714 			goto done;
7715 		}
7716 	}
7717 
7718 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
7719 	if (!cs84xx)
7720 		goto done;
7721 
7722 	kref_init(&cs84xx->kref);
7723 	spin_lock_init(&cs84xx->access_lock);
7724 	mutex_init(&cs84xx->fw_update_mutex);
7725 	cs84xx->bus = ha->pdev->bus;
7726 
7727 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
7728 done:
7729 	mutex_unlock(&qla_cs84xx_mutex);
7730 	return cs84xx;
7731 }
7732 
7733 static void
7734 __qla84xx_chip_release(struct kref *kref)
7735 {
7736 	struct qla_chip_state_84xx *cs84xx =
7737 	    container_of(kref, struct qla_chip_state_84xx, kref);
7738 
7739 	mutex_lock(&qla_cs84xx_mutex);
7740 	list_del(&cs84xx->list);
7741 	mutex_unlock(&qla_cs84xx_mutex);
7742 	kfree(cs84xx);
7743 }
7744 
7745 void
7746 qla84xx_put_chip(struct scsi_qla_host *vha)
7747 {
7748 	struct qla_hw_data *ha = vha->hw;
7749 	if (ha->cs84xx)
7750 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
7751 }
7752 
7753 static int
7754 qla84xx_init_chip(scsi_qla_host_t *vha)
7755 {
7756 	int rval;
7757 	uint16_t status[2];
7758 	struct qla_hw_data *ha = vha->hw;
7759 
7760 	mutex_lock(&ha->cs84xx->fw_update_mutex);
7761 
7762 	rval = qla84xx_verify_chip(vha, status);
7763 
7764 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
7765 
7766 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
7767 	    QLA_SUCCESS;
7768 }
7769 
7770 /* 81XX Support **************************************************************/
7771 
7772 int
7773 qla81xx_nvram_config(scsi_qla_host_t *vha)
7774 {
7775 	int   rval;
7776 	struct init_cb_81xx *icb;
7777 	struct nvram_81xx *nv;
7778 	uint32_t *dptr;
7779 	uint8_t  *dptr1, *dptr2;
7780 	uint32_t chksum;
7781 	uint16_t cnt;
7782 	struct qla_hw_data *ha = vha->hw;
7783 
7784 	rval = QLA_SUCCESS;
7785 	icb = (struct init_cb_81xx *)ha->init_cb;
7786 	nv = ha->nvram;
7787 
7788 	/* Determine NVRAM starting address. */
7789 	ha->nvram_size = sizeof(struct nvram_81xx);
7790 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7791 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
7792 		ha->vpd_size = FA_VPD_SIZE_82XX;
7793 
7794 	/* Get VPD data into cache */
7795 	ha->vpd = ha->nvram + VPD_OFFSET;
7796 	ha->isp_ops->read_optrom(vha, ha->vpd, ha->flt_region_vpd << 2,
7797 	    ha->vpd_size);
7798 
7799 	/* Get NVRAM data into cache and calculate checksum. */
7800 	ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
7801 	    ha->nvram_size);
7802 	dptr = (uint32_t *)nv;
7803 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7804 		chksum += le32_to_cpu(*dptr);
7805 
7806 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
7807 	    "Contents of NVRAM:\n");
7808 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
7809 	    (uint8_t *)nv, ha->nvram_size);
7810 
7811 	/* Bad NVRAM data, set defaults parameters. */
7812 	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
7813 	    || nv->id[3] != ' ' ||
7814 	    nv->nvram_version < cpu_to_le16(ICB_VERSION)) {
7815 		/* Reset NVRAM data. */
7816 		ql_log(ql_log_info, vha, 0x0073,
7817 		    "Inconsistent NVRAM detected: checksum=0x%x id=%c "
7818 		    "version=0x%x.\n", chksum, nv->id[0],
7819 		    le16_to_cpu(nv->nvram_version));
7820 		ql_log(ql_log_info, vha, 0x0074,
7821 		    "Falling back to functioning (yet invalid -- WWPN) "
7822 		    "defaults.\n");
7823 
7824 		/*
7825 		 * Set default initialization control block.
7826 		 */
7827 		memset(nv, 0, ha->nvram_size);
7828 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7829 		nv->version = cpu_to_le16(ICB_VERSION);
7830 		nv->frame_payload_size = 2048;
7831 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7832 		nv->exchange_count = cpu_to_le16(0);
7833 		nv->port_name[0] = 0x21;
7834 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7835 		nv->port_name[2] = 0x00;
7836 		nv->port_name[3] = 0xe0;
7837 		nv->port_name[4] = 0x8b;
7838 		nv->port_name[5] = 0x1c;
7839 		nv->port_name[6] = 0x55;
7840 		nv->port_name[7] = 0x86;
7841 		nv->node_name[0] = 0x20;
7842 		nv->node_name[1] = 0x00;
7843 		nv->node_name[2] = 0x00;
7844 		nv->node_name[3] = 0xe0;
7845 		nv->node_name[4] = 0x8b;
7846 		nv->node_name[5] = 0x1c;
7847 		nv->node_name[6] = 0x55;
7848 		nv->node_name[7] = 0x86;
7849 		nv->login_retry_count = cpu_to_le16(8);
7850 		nv->interrupt_delay_timer = cpu_to_le16(0);
7851 		nv->login_timeout = cpu_to_le16(0);
7852 		nv->firmware_options_1 =
7853 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7854 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7855 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7856 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7857 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7858 		nv->efi_parameters = cpu_to_le32(0);
7859 		nv->reset_delay = 5;
7860 		nv->max_luns_per_target = cpu_to_le16(128);
7861 		nv->port_down_retry_count = cpu_to_le16(30);
7862 		nv->link_down_timeout = cpu_to_le16(180);
7863 		nv->enode_mac[0] = 0x00;
7864 		nv->enode_mac[1] = 0xC0;
7865 		nv->enode_mac[2] = 0xDD;
7866 		nv->enode_mac[3] = 0x04;
7867 		nv->enode_mac[4] = 0x05;
7868 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
7869 
7870 		rval = 1;
7871 	}
7872 
7873 	if (IS_T10_PI_CAPABLE(ha))
7874 		nv->frame_payload_size &= ~7;
7875 
7876 	qlt_81xx_config_nvram_stage1(vha, nv);
7877 
7878 	/* Reset Initialization control block */
7879 	memset(icb, 0, ha->init_cb_size);
7880 
7881 	/* Copy 1st segment. */
7882 	dptr1 = (uint8_t *)icb;
7883 	dptr2 = (uint8_t *)&nv->version;
7884 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7885 	while (cnt--)
7886 		*dptr1++ = *dptr2++;
7887 
7888 	icb->login_retry_count = nv->login_retry_count;
7889 
7890 	/* Copy 2nd segment. */
7891 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7892 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7893 	cnt = (uint8_t *)&icb->reserved_5 -
7894 	    (uint8_t *)&icb->interrupt_delay_timer;
7895 	while (cnt--)
7896 		*dptr1++ = *dptr2++;
7897 
7898 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
7899 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
7900 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
7901 		icb->enode_mac[0] = 0x00;
7902 		icb->enode_mac[1] = 0xC0;
7903 		icb->enode_mac[2] = 0xDD;
7904 		icb->enode_mac[3] = 0x04;
7905 		icb->enode_mac[4] = 0x05;
7906 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
7907 	}
7908 
7909 	/* Use extended-initialization control block. */
7910 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
7911 
7912 	/*
7913 	 * Setup driver NVRAM options.
7914 	 */
7915 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7916 	    "QLE8XXX");
7917 
7918 	qlt_81xx_config_nvram_stage2(vha, icb);
7919 
7920 	/* Use alternate WWN? */
7921 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7922 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7923 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7924 	}
7925 
7926 	/* Prepare nodename */
7927 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7928 		/*
7929 		 * Firmware will apply the following mask if the nodename was
7930 		 * not provided.
7931 		 */
7932 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7933 		icb->node_name[0] &= 0xF0;
7934 	}
7935 
7936 	/* Set host adapter parameters. */
7937 	ha->flags.disable_risc_code_load = 0;
7938 	ha->flags.enable_lip_reset = 0;
7939 	ha->flags.enable_lip_full_login =
7940 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
7941 	ha->flags.enable_target_reset =
7942 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
7943 	ha->flags.enable_led_scheme = 0;
7944 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
7945 
7946 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7947 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7948 
7949 	/* save HBA serial number */
7950 	ha->serial0 = icb->port_name[5];
7951 	ha->serial1 = icb->port_name[6];
7952 	ha->serial2 = icb->port_name[7];
7953 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7954 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7955 
7956 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7957 
7958 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7959 
7960 	/* Set minimum login_timeout to 4 seconds. */
7961 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7962 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7963 	if (le16_to_cpu(nv->login_timeout) < 4)
7964 		nv->login_timeout = cpu_to_le16(4);
7965 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7966 
7967 	/* Set minimum RATOV to 100 tenths of a second. */
7968 	ha->r_a_tov = 100;
7969 
7970 	ha->loop_reset_delay = nv->reset_delay;
7971 
7972 	/* Link Down Timeout = 0:
7973 	 *
7974 	 *	When Port Down timer expires we will start returning
7975 	 *	I/O's to OS with "DID_NO_CONNECT".
7976 	 *
7977 	 * Link Down Timeout != 0:
7978 	 *
7979 	 *	 The driver waits for the link to come up after link down
7980 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7981 	 */
7982 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7983 		ha->loop_down_abort_time =
7984 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7985 	} else {
7986 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7987 		ha->loop_down_abort_time =
7988 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7989 	}
7990 
7991 	/* Need enough time to try and get the port back. */
7992 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7993 	if (qlport_down_retry)
7994 		ha->port_down_retry_count = qlport_down_retry;
7995 
7996 	/* Set login_retry_count */
7997 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7998 	if (ha->port_down_retry_count ==
7999 	    le16_to_cpu(nv->port_down_retry_count) &&
8000 	    ha->port_down_retry_count > 3)
8001 		ha->login_retry_count = ha->port_down_retry_count;
8002 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
8003 		ha->login_retry_count = ha->port_down_retry_count;
8004 	if (ql2xloginretrycount)
8005 		ha->login_retry_count = ql2xloginretrycount;
8006 
8007 	/* if not running MSI-X we need handshaking on interrupts */
8008 	if (!vha->hw->flags.msix_enabled && (IS_QLA83XX(ha) || IS_QLA27XX(ha)))
8009 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
8010 
8011 	/* Enable ZIO. */
8012 	if (!vha->flags.init_done) {
8013 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
8014 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
8015 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
8016 		    le16_to_cpu(icb->interrupt_delay_timer): 2;
8017 	}
8018 	icb->firmware_options_2 &= cpu_to_le32(
8019 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
8020 	vha->flags.process_response_queue = 0;
8021 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
8022 		ha->zio_mode = QLA_ZIO_MODE_6;
8023 
8024 		ql_log(ql_log_info, vha, 0x0075,
8025 		    "ZIO mode %d enabled; timer delay (%d us).\n",
8026 		    ha->zio_mode,
8027 		    ha->zio_timer * 100);
8028 
8029 		icb->firmware_options_2 |= cpu_to_le32(
8030 		    (uint32_t)ha->zio_mode);
8031 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
8032 		vha->flags.process_response_queue = 1;
8033 	}
8034 
8035 	 /* enable RIDA Format2 */
8036 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha))
8037 		icb->firmware_options_3 |= BIT_0;
8038 
8039 	if (IS_QLA27XX(ha)) {
8040 		icb->firmware_options_3 |= BIT_8;
8041 		ql_dbg(ql_log_info, vha, 0x0075,
8042 		    "Enabling direct connection.\n");
8043 	}
8044 
8045 	if (rval) {
8046 		ql_log(ql_log_warn, vha, 0x0076,
8047 		    "NVRAM configuration failed.\n");
8048 	}
8049 	return (rval);
8050 }
8051 
8052 int
8053 qla82xx_restart_isp(scsi_qla_host_t *vha)
8054 {
8055 	int status, rval;
8056 	struct qla_hw_data *ha = vha->hw;
8057 	struct req_que *req = ha->req_q_map[0];
8058 	struct rsp_que *rsp = ha->rsp_q_map[0];
8059 	struct scsi_qla_host *vp;
8060 	unsigned long flags;
8061 
8062 	status = qla2x00_init_rings(vha);
8063 	if (!status) {
8064 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8065 		ha->flags.chip_reset_done = 1;
8066 
8067 		status = qla2x00_fw_ready(vha);
8068 		if (!status) {
8069 			/* Issue a marker after FW becomes ready. */
8070 			qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
8071 			vha->flags.online = 1;
8072 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8073 		}
8074 
8075 		/* if no cable then assume it's good */
8076 		if ((vha->device_flags & DFLG_NO_CABLE))
8077 			status = 0;
8078 	}
8079 
8080 	if (!status) {
8081 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8082 
8083 		if (!atomic_read(&vha->loop_down_timer)) {
8084 			/*
8085 			 * Issue marker command only when we are going
8086 			 * to start the I/O .
8087 			 */
8088 			vha->marker_needed = 1;
8089 		}
8090 
8091 		ha->isp_ops->enable_intrs(ha);
8092 
8093 		ha->isp_abort_cnt = 0;
8094 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
8095 
8096 		/* Update the firmware version */
8097 		status = qla82xx_check_md_needed(vha);
8098 
8099 		if (ha->fce) {
8100 			ha->flags.fce_enabled = 1;
8101 			memset(ha->fce, 0,
8102 			    fce_calc_size(ha->fce_bufs));
8103 			rval = qla2x00_enable_fce_trace(vha,
8104 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
8105 			    &ha->fce_bufs);
8106 			if (rval) {
8107 				ql_log(ql_log_warn, vha, 0x8001,
8108 				    "Unable to reinitialize FCE (%d).\n",
8109 				    rval);
8110 				ha->flags.fce_enabled = 0;
8111 			}
8112 		}
8113 
8114 		if (ha->eft) {
8115 			memset(ha->eft, 0, EFT_SIZE);
8116 			rval = qla2x00_enable_eft_trace(vha,
8117 			    ha->eft_dma, EFT_NUM_BUFFERS);
8118 			if (rval) {
8119 				ql_log(ql_log_warn, vha, 0x8010,
8120 				    "Unable to reinitialize EFT (%d).\n",
8121 				    rval);
8122 			}
8123 		}
8124 	}
8125 
8126 	if (!status) {
8127 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
8128 		    "qla82xx_restart_isp succeeded.\n");
8129 
8130 		spin_lock_irqsave(&ha->vport_slock, flags);
8131 		list_for_each_entry(vp, &ha->vp_list, list) {
8132 			if (vp->vp_idx) {
8133 				atomic_inc(&vp->vref_count);
8134 				spin_unlock_irqrestore(&ha->vport_slock, flags);
8135 
8136 				qla2x00_vp_abort_isp(vp);
8137 
8138 				spin_lock_irqsave(&ha->vport_slock, flags);
8139 				atomic_dec(&vp->vref_count);
8140 			}
8141 		}
8142 		spin_unlock_irqrestore(&ha->vport_slock, flags);
8143 
8144 	} else {
8145 		ql_log(ql_log_warn, vha, 0x8016,
8146 		    "qla82xx_restart_isp **** FAILED ****.\n");
8147 	}
8148 
8149 	return status;
8150 }
8151 
8152 void
8153 qla81xx_update_fw_options(scsi_qla_host_t *vha)
8154 {
8155 	struct qla_hw_data *ha = vha->hw;
8156 
8157 	/*  Hold status IOCBs until ABTS response received. */
8158 	if (ql2xfwholdabts)
8159 		ha->fw_options[3] |= BIT_12;
8160 
8161 	/* Set Retry FLOGI in case of P2P connection */
8162 	if (ha->operating_mode == P2P) {
8163 		ha->fw_options[2] |= BIT_3;
8164 		ql_dbg(ql_dbg_disc, vha, 0x2103,
8165 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
8166 			__func__, ha->fw_options[2]);
8167 	}
8168 
8169 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
8170 	if (ql2xmvasynctoatio) {
8171 		if (qla_tgt_mode_enabled(vha) ||
8172 		    qla_dual_mode_enabled(vha))
8173 			ha->fw_options[2] |= BIT_11;
8174 		else
8175 			ha->fw_options[2] &= ~BIT_11;
8176 	}
8177 
8178 	if (qla_tgt_mode_enabled(vha) ||
8179 	    qla_dual_mode_enabled(vha)) {
8180 		/* FW auto send SCSI status during */
8181 		ha->fw_options[1] |= BIT_8;
8182 		ha->fw_options[10] |= (u16)SAM_STAT_BUSY << 8;
8183 
8184 		/* FW perform Exchange validation */
8185 		ha->fw_options[2] |= BIT_4;
8186 	} else {
8187 		ha->fw_options[1]  &= ~BIT_8;
8188 		ha->fw_options[10] &= 0x00ff;
8189 
8190 		ha->fw_options[2] &= ~BIT_4;
8191 	}
8192 
8193 	if (ql2xetsenable) {
8194 		/* Enable ETS Burst. */
8195 		memset(ha->fw_options, 0, sizeof(ha->fw_options));
8196 		ha->fw_options[2] |= BIT_9;
8197 	}
8198 
8199 	ql_dbg(ql_dbg_init, vha, 0x00e9,
8200 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
8201 	    __func__, ha->fw_options[1], ha->fw_options[2],
8202 	    ha->fw_options[3], vha->host->active_mode);
8203 
8204 	qla2x00_set_fw_options(vha, ha->fw_options);
8205 }
8206 
8207 /*
8208  * qla24xx_get_fcp_prio
8209  *	Gets the fcp cmd priority value for the logged in port.
8210  *	Looks for a match of the port descriptors within
8211  *	each of the fcp prio config entries. If a match is found,
8212  *	the tag (priority) value is returned.
8213  *
8214  * Input:
8215  *	vha = scsi host structure pointer.
8216  *	fcport = port structure pointer.
8217  *
8218  * Return:
8219  *	non-zero (if found)
8220  *	-1 (if not found)
8221  *
8222  * Context:
8223  * 	Kernel context
8224  */
8225 static int
8226 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8227 {
8228 	int i, entries;
8229 	uint8_t pid_match, wwn_match;
8230 	int priority;
8231 	uint32_t pid1, pid2;
8232 	uint64_t wwn1, wwn2;
8233 	struct qla_fcp_prio_entry *pri_entry;
8234 	struct qla_hw_data *ha = vha->hw;
8235 
8236 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
8237 		return -1;
8238 
8239 	priority = -1;
8240 	entries = ha->fcp_prio_cfg->num_entries;
8241 	pri_entry = &ha->fcp_prio_cfg->entry[0];
8242 
8243 	for (i = 0; i < entries; i++) {
8244 		pid_match = wwn_match = 0;
8245 
8246 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
8247 			pri_entry++;
8248 			continue;
8249 		}
8250 
8251 		/* check source pid for a match */
8252 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
8253 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
8254 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
8255 			if (pid1 == INVALID_PORT_ID)
8256 				pid_match++;
8257 			else if (pid1 == pid2)
8258 				pid_match++;
8259 		}
8260 
8261 		/* check destination pid for a match */
8262 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
8263 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
8264 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
8265 			if (pid1 == INVALID_PORT_ID)
8266 				pid_match++;
8267 			else if (pid1 == pid2)
8268 				pid_match++;
8269 		}
8270 
8271 		/* check source WWN for a match */
8272 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
8273 			wwn1 = wwn_to_u64(vha->port_name);
8274 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
8275 			if (wwn2 == (uint64_t)-1)
8276 				wwn_match++;
8277 			else if (wwn1 == wwn2)
8278 				wwn_match++;
8279 		}
8280 
8281 		/* check destination WWN for a match */
8282 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
8283 			wwn1 = wwn_to_u64(fcport->port_name);
8284 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
8285 			if (wwn2 == (uint64_t)-1)
8286 				wwn_match++;
8287 			else if (wwn1 == wwn2)
8288 				wwn_match++;
8289 		}
8290 
8291 		if (pid_match == 2 || wwn_match == 2) {
8292 			/* Found a matching entry */
8293 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
8294 				priority = pri_entry->tag;
8295 			break;
8296 		}
8297 
8298 		pri_entry++;
8299 	}
8300 
8301 	return priority;
8302 }
8303 
8304 /*
8305  * qla24xx_update_fcport_fcp_prio
8306  *	Activates fcp priority for the logged in fc port
8307  *
8308  * Input:
8309  *	vha = scsi host structure pointer.
8310  *	fcp = port structure pointer.
8311  *
8312  * Return:
8313  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8314  *
8315  * Context:
8316  *	Kernel context.
8317  */
8318 int
8319 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8320 {
8321 	int ret;
8322 	int priority;
8323 	uint16_t mb[5];
8324 
8325 	if (fcport->port_type != FCT_TARGET ||
8326 	    fcport->loop_id == FC_NO_LOOP_ID)
8327 		return QLA_FUNCTION_FAILED;
8328 
8329 	priority = qla24xx_get_fcp_prio(vha, fcport);
8330 	if (priority < 0)
8331 		return QLA_FUNCTION_FAILED;
8332 
8333 	if (IS_P3P_TYPE(vha->hw)) {
8334 		fcport->fcp_prio = priority & 0xf;
8335 		return QLA_SUCCESS;
8336 	}
8337 
8338 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
8339 	if (ret == QLA_SUCCESS) {
8340 		if (fcport->fcp_prio != priority)
8341 			ql_dbg(ql_dbg_user, vha, 0x709e,
8342 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
8343 			    "port_id=%02x%02x%02x.\n", priority,
8344 			    fcport->loop_id, fcport->d_id.b.domain,
8345 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
8346 		fcport->fcp_prio = priority & 0xf;
8347 	} else
8348 		ql_dbg(ql_dbg_user, vha, 0x704f,
8349 		    "Unable to update FCP_CMND priority - ret=0x%x for "
8350 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
8351 		    fcport->d_id.b.domain, fcport->d_id.b.area,
8352 		    fcport->d_id.b.al_pa);
8353 	return  ret;
8354 }
8355 
8356 /*
8357  * qla24xx_update_all_fcp_prio
8358  *	Activates fcp priority for all the logged in ports
8359  *
8360  * Input:
8361  *	ha = adapter block pointer.
8362  *
8363  * Return:
8364  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8365  *
8366  * Context:
8367  *	Kernel context.
8368  */
8369 int
8370 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
8371 {
8372 	int ret;
8373 	fc_port_t *fcport;
8374 
8375 	ret = QLA_FUNCTION_FAILED;
8376 	/* We need to set priority for all logged in ports */
8377 	list_for_each_entry(fcport, &vha->vp_fcports, list)
8378 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
8379 
8380 	return ret;
8381 }
8382 
8383 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
8384 	int vp_idx, bool startqp)
8385 {
8386 	int rsp_id = 0;
8387 	int  req_id = 0;
8388 	int i;
8389 	struct qla_hw_data *ha = vha->hw;
8390 	uint16_t qpair_id = 0;
8391 	struct qla_qpair *qpair = NULL;
8392 	struct qla_msix_entry *msix;
8393 
8394 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
8395 		ql_log(ql_log_warn, vha, 0x00181,
8396 		    "FW/Driver is not multi-queue capable.\n");
8397 		return NULL;
8398 	}
8399 
8400 	if (ql2xmqsupport || ql2xnvmeenable) {
8401 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
8402 		if (qpair == NULL) {
8403 			ql_log(ql_log_warn, vha, 0x0182,
8404 			    "Failed to allocate memory for queue pair.\n");
8405 			return NULL;
8406 		}
8407 		memset(qpair, 0, sizeof(struct qla_qpair));
8408 
8409 		qpair->hw = vha->hw;
8410 		qpair->vha = vha;
8411 		qpair->qp_lock_ptr = &qpair->qp_lock;
8412 		spin_lock_init(&qpair->qp_lock);
8413 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
8414 
8415 		/* Assign available que pair id */
8416 		mutex_lock(&ha->mq_lock);
8417 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
8418 		if (ha->num_qpairs >= ha->max_qpairs) {
8419 			mutex_unlock(&ha->mq_lock);
8420 			ql_log(ql_log_warn, vha, 0x0183,
8421 			    "No resources to create additional q pair.\n");
8422 			goto fail_qid_map;
8423 		}
8424 		ha->num_qpairs++;
8425 		set_bit(qpair_id, ha->qpair_qid_map);
8426 		ha->queue_pair_map[qpair_id] = qpair;
8427 		qpair->id = qpair_id;
8428 		qpair->vp_idx = vp_idx;
8429 		qpair->fw_started = ha->flags.fw_started;
8430 		INIT_LIST_HEAD(&qpair->hints_list);
8431 		qpair->chip_reset = ha->base_qpair->chip_reset;
8432 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
8433 		qpair->enable_explicit_conf =
8434 		    ha->base_qpair->enable_explicit_conf;
8435 
8436 		for (i = 0; i < ha->msix_count; i++) {
8437 			msix = &ha->msix_entries[i];
8438 			if (msix->in_use)
8439 				continue;
8440 			qpair->msix = msix;
8441 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
8442 			    "Vector %x selected for qpair\n", msix->vector);
8443 			break;
8444 		}
8445 		if (!qpair->msix) {
8446 			ql_log(ql_log_warn, vha, 0x0184,
8447 			    "Out of MSI-X vectors!.\n");
8448 			goto fail_msix;
8449 		}
8450 
8451 		qpair->msix->in_use = 1;
8452 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
8453 		qpair->pdev = ha->pdev;
8454 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha))
8455 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
8456 
8457 		mutex_unlock(&ha->mq_lock);
8458 
8459 		/* Create response queue first */
8460 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
8461 		if (!rsp_id) {
8462 			ql_log(ql_log_warn, vha, 0x0185,
8463 			    "Failed to create response queue.\n");
8464 			goto fail_rsp;
8465 		}
8466 
8467 		qpair->rsp = ha->rsp_q_map[rsp_id];
8468 
8469 		/* Create request queue */
8470 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
8471 		    startqp);
8472 		if (!req_id) {
8473 			ql_log(ql_log_warn, vha, 0x0186,
8474 			    "Failed to create request queue.\n");
8475 			goto fail_req;
8476 		}
8477 
8478 		qpair->req = ha->req_q_map[req_id];
8479 		qpair->rsp->req = qpair->req;
8480 		qpair->rsp->qpair = qpair;
8481 		/* init qpair to this cpu. Will adjust at run time. */
8482 		qla_cpu_update(qpair, smp_processor_id());
8483 
8484 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
8485 			if (ha->fw_attributes & BIT_4)
8486 				qpair->difdix_supported = 1;
8487 		}
8488 
8489 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
8490 		if (!qpair->srb_mempool) {
8491 			ql_log(ql_log_warn, vha, 0xd036,
8492 			    "Failed to create srb mempool for qpair %d\n",
8493 			    qpair->id);
8494 			goto fail_mempool;
8495 		}
8496 
8497 		/* Mark as online */
8498 		qpair->online = 1;
8499 
8500 		if (!vha->flags.qpairs_available)
8501 			vha->flags.qpairs_available = 1;
8502 
8503 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
8504 		    "Request/Response queue pair created, id %d\n",
8505 		    qpair->id);
8506 		ql_dbg(ql_dbg_init, vha, 0x0187,
8507 		    "Request/Response queue pair created, id %d\n",
8508 		    qpair->id);
8509 	}
8510 	return qpair;
8511 
8512 fail_mempool:
8513 fail_req:
8514 	qla25xx_delete_rsp_que(vha, qpair->rsp);
8515 fail_rsp:
8516 	mutex_lock(&ha->mq_lock);
8517 	qpair->msix->in_use = 0;
8518 	list_del(&qpair->qp_list_elem);
8519 	if (list_empty(&vha->qp_list))
8520 		vha->flags.qpairs_available = 0;
8521 fail_msix:
8522 	ha->queue_pair_map[qpair_id] = NULL;
8523 	clear_bit(qpair_id, ha->qpair_qid_map);
8524 	ha->num_qpairs--;
8525 	mutex_unlock(&ha->mq_lock);
8526 fail_qid_map:
8527 	kfree(qpair);
8528 	return NULL;
8529 }
8530 
8531 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
8532 {
8533 	int ret = QLA_FUNCTION_FAILED;
8534 	struct qla_hw_data *ha = qpair->hw;
8535 
8536 	qpair->delete_in_progress = 1;
8537 	while (atomic_read(&qpair->ref_count))
8538 		msleep(500);
8539 
8540 	ret = qla25xx_delete_req_que(vha, qpair->req);
8541 	if (ret != QLA_SUCCESS)
8542 		goto fail;
8543 
8544 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
8545 	if (ret != QLA_SUCCESS)
8546 		goto fail;
8547 
8548 	mutex_lock(&ha->mq_lock);
8549 	ha->queue_pair_map[qpair->id] = NULL;
8550 	clear_bit(qpair->id, ha->qpair_qid_map);
8551 	ha->num_qpairs--;
8552 	list_del(&qpair->qp_list_elem);
8553 	if (list_empty(&vha->qp_list)) {
8554 		vha->flags.qpairs_available = 0;
8555 		vha->flags.qpairs_req_created = 0;
8556 		vha->flags.qpairs_rsp_created = 0;
8557 	}
8558 	mempool_destroy(qpair->srb_mempool);
8559 	kfree(qpair);
8560 	mutex_unlock(&ha->mq_lock);
8561 
8562 	return QLA_SUCCESS;
8563 fail:
8564 	return ret;
8565 }
8566