xref: /linux/drivers/scsi/qla2xxx/qla_init.c (revision 95298d63c67673c654c08952672d016212b26054)
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 "qla_target.h"
21 
22 /*
23 *  QLogic ISP2x00 Hardware Support Function Prototypes.
24 */
25 static int qla2x00_isp_firmware(scsi_qla_host_t *);
26 static int qla2x00_setup_chip(scsi_qla_host_t *);
27 static int qla2x00_fw_ready(scsi_qla_host_t *);
28 static int qla2x00_configure_hba(scsi_qla_host_t *);
29 static int qla2x00_configure_loop(scsi_qla_host_t *);
30 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
31 static int qla2x00_configure_fabric(scsi_qla_host_t *);
32 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *);
33 static int qla2x00_restart_isp(scsi_qla_host_t *);
34 
35 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
36 static int qla84xx_init_chip(scsi_qla_host_t *);
37 static int qla25xx_init_queues(struct qla_hw_data *);
38 static int qla24xx_post_prli_work(struct scsi_qla_host*, fc_port_t *);
39 static void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha,
40 				      struct event_arg *ea);
41 static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
42     struct event_arg *);
43 static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
44 
45 /* SRB Extensions ---------------------------------------------------------- */
46 
47 void
48 qla2x00_sp_timeout(struct timer_list *t)
49 {
50 	srb_t *sp = from_timer(sp, t, u.iocb_cmd.timer);
51 	struct srb_iocb *iocb;
52 
53 	WARN_ON(irqs_disabled());
54 	iocb = &sp->u.iocb_cmd;
55 	iocb->timeout(sp);
56 }
57 
58 void qla2x00_sp_free(srb_t *sp)
59 {
60 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
61 
62 	del_timer(&iocb->timer);
63 	qla2x00_rel_sp(sp);
64 }
65 
66 /* Asynchronous Login/Logout Routines -------------------------------------- */
67 
68 unsigned long
69 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
70 {
71 	unsigned long tmo;
72 	struct qla_hw_data *ha = vha->hw;
73 
74 	/* Firmware should use switch negotiated r_a_tov for timeout. */
75 	tmo = ha->r_a_tov / 10 * 2;
76 	if (IS_QLAFX00(ha)) {
77 		tmo = FX00_DEF_RATOV * 2;
78 	} else if (!IS_FWI2_CAPABLE(ha)) {
79 		/*
80 		 * Except for earlier ISPs where the timeout is seeded from the
81 		 * initialization control block.
82 		 */
83 		tmo = ha->login_timeout;
84 	}
85 	return tmo;
86 }
87 
88 static void qla24xx_abort_iocb_timeout(void *data)
89 {
90 	srb_t *sp = data;
91 	struct srb_iocb *abt = &sp->u.iocb_cmd;
92 	struct qla_qpair *qpair = sp->qpair;
93 	u32 handle;
94 	unsigned long flags;
95 
96 	if (sp->cmd_sp)
97 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
98 		    "Abort timeout - cmd hdl=%x, cmd type=%x hdl=%x, type=%x\n",
99 		    sp->cmd_sp->handle, sp->cmd_sp->type,
100 		    sp->handle, sp->type);
101 	else
102 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
103 		    "Abort timeout 2 - hdl=%x, type=%x\n",
104 		    sp->handle, sp->type);
105 
106 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
107 	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
108 		if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
109 		    sp->cmd_sp))
110 			qpair->req->outstanding_cmds[handle] = NULL;
111 
112 		/* removing the abort */
113 		if (qpair->req->outstanding_cmds[handle] == sp) {
114 			qpair->req->outstanding_cmds[handle] = NULL;
115 			break;
116 		}
117 	}
118 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
119 
120 	if (sp->cmd_sp)
121 		sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
122 
123 	abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
124 	sp->done(sp, QLA_OS_TIMER_EXPIRED);
125 }
126 
127 static void qla24xx_abort_sp_done(srb_t *sp, int res)
128 {
129 	struct srb_iocb *abt = &sp->u.iocb_cmd;
130 
131 	del_timer(&sp->u.iocb_cmd.timer);
132 	if (sp->flags & SRB_WAKEUP_ON_COMP)
133 		complete(&abt->u.abt.comp);
134 	else
135 		sp->free(sp);
136 }
137 
138 int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
139 {
140 	scsi_qla_host_t *vha = cmd_sp->vha;
141 	struct srb_iocb *abt_iocb;
142 	srb_t *sp;
143 	int rval = QLA_FUNCTION_FAILED;
144 
145 	sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
146 				  GFP_ATOMIC);
147 	if (!sp)
148 		return rval;
149 
150 	abt_iocb = &sp->u.iocb_cmd;
151 	sp->type = SRB_ABT_CMD;
152 	sp->name = "abort";
153 	sp->qpair = cmd_sp->qpair;
154 	sp->cmd_sp = cmd_sp;
155 	if (wait)
156 		sp->flags = SRB_WAKEUP_ON_COMP;
157 
158 	abt_iocb->timeout = qla24xx_abort_iocb_timeout;
159 	init_completion(&abt_iocb->u.abt.comp);
160 	/* FW can send 2 x ABTS's timeout/20s */
161 	qla2x00_init_timer(sp, 42);
162 
163 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
164 	abt_iocb->u.abt.req_que_no = cpu_to_le16(cmd_sp->qpair->req->id);
165 
166 	sp->done = qla24xx_abort_sp_done;
167 
168 	ql_dbg(ql_dbg_async, vha, 0x507c,
169 	       "Abort command issued - hdl=%x, type=%x\n", cmd_sp->handle,
170 	       cmd_sp->type);
171 
172 	rval = qla2x00_start_sp(sp);
173 	if (rval != QLA_SUCCESS) {
174 		sp->free(sp);
175 		return rval;
176 	}
177 
178 	if (wait) {
179 		wait_for_completion(&abt_iocb->u.abt.comp);
180 		rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
181 			QLA_SUCCESS : QLA_FUNCTION_FAILED;
182 		sp->free(sp);
183 	}
184 
185 	return rval;
186 }
187 
188 void
189 qla2x00_async_iocb_timeout(void *data)
190 {
191 	srb_t *sp = data;
192 	fc_port_t *fcport = sp->fcport;
193 	struct srb_iocb *lio = &sp->u.iocb_cmd;
194 	int rc, h;
195 	unsigned long flags;
196 
197 	if (fcport) {
198 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
199 		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
200 		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
201 
202 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
203 	} else {
204 		pr_info("Async-%s timeout - hdl=%x.\n",
205 		    sp->name, sp->handle);
206 	}
207 
208 	switch (sp->type) {
209 	case SRB_LOGIN_CMD:
210 		rc = qla24xx_async_abort_cmd(sp, false);
211 		if (rc) {
212 			/* Retry as needed. */
213 			lio->u.logio.data[0] = MBS_COMMAND_ERROR;
214 			lio->u.logio.data[1] =
215 				lio->u.logio.flags & SRB_LOGIN_RETRIED ?
216 				QLA_LOGIO_LOGIN_RETRIED : 0;
217 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
218 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
219 			    h++) {
220 				if (sp->qpair->req->outstanding_cmds[h] ==
221 				    sp) {
222 					sp->qpair->req->outstanding_cmds[h] =
223 					    NULL;
224 					break;
225 				}
226 			}
227 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
228 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
229 		}
230 		break;
231 	case SRB_LOGOUT_CMD:
232 	case SRB_CT_PTHRU_CMD:
233 	case SRB_MB_IOCB:
234 	case SRB_NACK_PLOGI:
235 	case SRB_NACK_PRLI:
236 	case SRB_NACK_LOGO:
237 	case SRB_CTRL_VP:
238 	default:
239 		rc = qla24xx_async_abort_cmd(sp, false);
240 		if (rc) {
241 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
242 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
243 			    h++) {
244 				if (sp->qpair->req->outstanding_cmds[h] ==
245 				    sp) {
246 					sp->qpair->req->outstanding_cmds[h] =
247 					    NULL;
248 					break;
249 				}
250 			}
251 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
252 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
253 		}
254 		break;
255 	}
256 }
257 
258 static void qla2x00_async_login_sp_done(srb_t *sp, int res)
259 {
260 	struct scsi_qla_host *vha = sp->vha;
261 	struct srb_iocb *lio = &sp->u.iocb_cmd;
262 	struct event_arg ea;
263 
264 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
265 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
266 
267 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
268 
269 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
270 		memset(&ea, 0, sizeof(ea));
271 		ea.fcport = sp->fcport;
272 		ea.data[0] = lio->u.logio.data[0];
273 		ea.data[1] = lio->u.logio.data[1];
274 		ea.iop[0] = lio->u.logio.iop[0];
275 		ea.iop[1] = lio->u.logio.iop[1];
276 		ea.sp = sp;
277 		qla24xx_handle_plogi_done_event(vha, &ea);
278 	}
279 
280 	sp->free(sp);
281 }
282 
283 static inline bool
284 fcport_is_smaller(fc_port_t *fcport)
285 {
286 	if (wwn_to_u64(fcport->port_name) <
287 	    wwn_to_u64(fcport->vha->port_name))
288 		return true;
289 	else
290 		return false;
291 }
292 
293 static inline bool
294 fcport_is_bigger(fc_port_t *fcport)
295 {
296 	return !fcport_is_smaller(fcport);
297 }
298 
299 int
300 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
301     uint16_t *data)
302 {
303 	srb_t *sp;
304 	struct srb_iocb *lio;
305 	int rval = QLA_FUNCTION_FAILED;
306 
307 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
308 	    fcport->loop_id == FC_NO_LOOP_ID) {
309 		ql_log(ql_log_warn, vha, 0xffff,
310 		    "%s: %8phC - not sending command.\n",
311 		    __func__, fcport->port_name);
312 		return rval;
313 	}
314 
315 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
316 	if (!sp)
317 		goto done;
318 
319 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
320 	fcport->flags |= FCF_ASYNC_SENT;
321 	fcport->logout_completed = 0;
322 
323 	sp->type = SRB_LOGIN_CMD;
324 	sp->name = "login";
325 	sp->gen1 = fcport->rscn_gen;
326 	sp->gen2 = fcport->login_gen;
327 
328 	lio = &sp->u.iocb_cmd;
329 	lio->timeout = qla2x00_async_iocb_timeout;
330 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
331 
332 	sp->done = qla2x00_async_login_sp_done;
333 	if (N2N_TOPO(fcport->vha->hw) && fcport_is_bigger(fcport))
334 		lio->u.logio.flags |= SRB_LOGIN_PRLI_ONLY;
335 	else
336 		lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
337 
338 	if (NVME_TARGET(vha->hw, fcport))
339 		lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
340 
341 	ql_dbg(ql_dbg_disc, vha, 0x2072,
342 	    "Async-login - %8phC hdl=%x, loopid=%x portid=%02x%02x%02x "
343 		"retries=%d.\n", fcport->port_name, sp->handle, fcport->loop_id,
344 	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
345 	    fcport->login_retry);
346 
347 	rval = qla2x00_start_sp(sp);
348 	if (rval != QLA_SUCCESS) {
349 		fcport->flags |= FCF_LOGIN_NEEDED;
350 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
351 		goto done_free_sp;
352 	}
353 
354 	return rval;
355 
356 done_free_sp:
357 	sp->free(sp);
358 	fcport->flags &= ~FCF_ASYNC_SENT;
359 done:
360 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
361 	return rval;
362 }
363 
364 static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
365 {
366 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
367 	sp->fcport->login_gen++;
368 	qlt_logo_completion_handler(sp->fcport, res);
369 	sp->free(sp);
370 }
371 
372 int
373 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
374 {
375 	srb_t *sp;
376 	struct srb_iocb *lio;
377 	int rval = QLA_FUNCTION_FAILED;
378 
379 	fcport->flags |= FCF_ASYNC_SENT;
380 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
381 	if (!sp)
382 		goto done;
383 
384 	sp->type = SRB_LOGOUT_CMD;
385 	sp->name = "logout";
386 
387 	lio = &sp->u.iocb_cmd;
388 	lio->timeout = qla2x00_async_iocb_timeout;
389 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
390 
391 	sp->done = qla2x00_async_logout_sp_done;
392 
393 	ql_dbg(ql_dbg_disc, vha, 0x2070,
394 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC.\n",
395 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
396 		fcport->d_id.b.area, fcport->d_id.b.al_pa,
397 		fcport->port_name);
398 
399 	rval = qla2x00_start_sp(sp);
400 	if (rval != QLA_SUCCESS)
401 		goto done_free_sp;
402 	return rval;
403 
404 done_free_sp:
405 	sp->free(sp);
406 done:
407 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
408 	return rval;
409 }
410 
411 void
412 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
413     uint16_t *data)
414 {
415 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
416 	/* Don't re-login in target mode */
417 	if (!fcport->tgt_session)
418 		qla2x00_mark_device_lost(vha, fcport, 1);
419 	qlt_logo_completion_handler(fcport, data[0]);
420 }
421 
422 static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
423 {
424 	struct srb_iocb *lio = &sp->u.iocb_cmd;
425 	struct scsi_qla_host *vha = sp->vha;
426 
427 	sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
428 	if (!test_bit(UNLOADING, &vha->dpc_flags))
429 		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
430 		    lio->u.logio.data);
431 	sp->free(sp);
432 }
433 
434 int
435 qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
436 {
437 	srb_t *sp;
438 	struct srb_iocb *lio;
439 	int rval;
440 
441 	rval = QLA_FUNCTION_FAILED;
442 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
443 	if (!sp)
444 		goto done;
445 
446 	sp->type = SRB_PRLO_CMD;
447 	sp->name = "prlo";
448 
449 	lio = &sp->u.iocb_cmd;
450 	lio->timeout = qla2x00_async_iocb_timeout;
451 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
452 
453 	sp->done = qla2x00_async_prlo_sp_done;
454 
455 	ql_dbg(ql_dbg_disc, vha, 0x2070,
456 	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
457 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
458 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
459 
460 	rval = qla2x00_start_sp(sp);
461 	if (rval != QLA_SUCCESS)
462 		goto done_free_sp;
463 
464 	return rval;
465 
466 done_free_sp:
467 	sp->free(sp);
468 done:
469 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
470 	return rval;
471 }
472 
473 static
474 void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
475 {
476 	struct fc_port *fcport = ea->fcport;
477 
478 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
479 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
480 	    __func__, fcport->port_name, fcport->disc_state,
481 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
482 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
483 
484 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
485 		  ea->data[0]);
486 
487 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
488 		ql_dbg(ql_dbg_disc, vha, 0x2066,
489 		    "%s %8phC: adisc fail: post delete\n",
490 		    __func__, ea->fcport->port_name);
491 		/* deleted = 0 & logout_on_delete = force fw cleanup */
492 		fcport->deleted = 0;
493 		fcport->logout_on_delete = 1;
494 		qlt_schedule_sess_for_deletion(ea->fcport);
495 		return;
496 	}
497 
498 	if (ea->fcport->disc_state == DSC_DELETE_PEND)
499 		return;
500 
501 	if (ea->sp->gen2 != ea->fcport->login_gen) {
502 		/* target side must have changed it. */
503 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
504 		    "%s %8phC generation changed\n",
505 		    __func__, ea->fcport->port_name);
506 		return;
507 	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
508 		qla_rscn_replay(fcport);
509 		qlt_schedule_sess_for_deletion(fcport);
510 		return;
511 	}
512 
513 	__qla24xx_handle_gpdb_event(vha, ea);
514 }
515 
516 static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
517 {
518 	struct qla_work_evt *e;
519 
520 	e = qla2x00_alloc_work(vha, QLA_EVT_ELS_PLOGI);
521 	if (!e)
522 		return QLA_FUNCTION_FAILED;
523 
524 	e->u.fcport.fcport = fcport;
525 	fcport->flags |= FCF_ASYNC_ACTIVE;
526 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
527 	return qla2x00_post_work(vha, e);
528 }
529 
530 static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
531 {
532 	struct scsi_qla_host *vha = sp->vha;
533 	struct event_arg ea;
534 	struct srb_iocb *lio = &sp->u.iocb_cmd;
535 
536 	ql_dbg(ql_dbg_disc, vha, 0x2066,
537 	    "Async done-%s res %x %8phC\n",
538 	    sp->name, res, sp->fcport->port_name);
539 
540 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
541 
542 	memset(&ea, 0, sizeof(ea));
543 	ea.rc = res;
544 	ea.data[0] = lio->u.logio.data[0];
545 	ea.data[1] = lio->u.logio.data[1];
546 	ea.iop[0] = lio->u.logio.iop[0];
547 	ea.iop[1] = lio->u.logio.iop[1];
548 	ea.fcport = sp->fcport;
549 	ea.sp = sp;
550 
551 	qla24xx_handle_adisc_event(vha, &ea);
552 
553 	sp->free(sp);
554 }
555 
556 int
557 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
558     uint16_t *data)
559 {
560 	srb_t *sp;
561 	struct srb_iocb *lio;
562 	int rval = QLA_FUNCTION_FAILED;
563 
564 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
565 		return rval;
566 
567 	fcport->flags |= FCF_ASYNC_SENT;
568 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
569 	if (!sp)
570 		goto done;
571 
572 	sp->type = SRB_ADISC_CMD;
573 	sp->name = "adisc";
574 
575 	lio = &sp->u.iocb_cmd;
576 	lio->timeout = qla2x00_async_iocb_timeout;
577 	sp->gen1 = fcport->rscn_gen;
578 	sp->gen2 = fcport->login_gen;
579 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
580 
581 	sp->done = qla2x00_async_adisc_sp_done;
582 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
583 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
584 
585 	ql_dbg(ql_dbg_disc, vha, 0x206f,
586 	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
587 	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
588 
589 	rval = qla2x00_start_sp(sp);
590 	if (rval != QLA_SUCCESS)
591 		goto done_free_sp;
592 
593 	return rval;
594 
595 done_free_sp:
596 	sp->free(sp);
597 done:
598 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
599 	qla2x00_post_async_adisc_work(vha, fcport, data);
600 	return rval;
601 }
602 
603 static bool qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
604 {
605 	struct qla_hw_data *ha = vha->hw;
606 
607 	if (IS_FWI2_CAPABLE(ha))
608 		return loop_id > NPH_LAST_HANDLE;
609 
610 	return (loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
611 		loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST;
612 }
613 
614 /**
615  * qla2x00_find_new_loop_id - scan through our port list and find a new usable loop ID
616  * @vha: adapter state pointer.
617  * @dev: port structure pointer.
618  *
619  * Returns:
620  *	qla2x00 local function return status code.
621  *
622  * Context:
623  *	Kernel context.
624  */
625 static int qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
626 {
627 	int	rval;
628 	struct qla_hw_data *ha = vha->hw;
629 	unsigned long flags = 0;
630 
631 	rval = QLA_SUCCESS;
632 
633 	spin_lock_irqsave(&ha->vport_slock, flags);
634 
635 	dev->loop_id = find_first_zero_bit(ha->loop_id_map, LOOPID_MAP_SIZE);
636 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
637 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
638 		dev->loop_id = FC_NO_LOOP_ID;
639 		rval = QLA_FUNCTION_FAILED;
640 	} else {
641 		set_bit(dev->loop_id, ha->loop_id_map);
642 	}
643 	spin_unlock_irqrestore(&ha->vport_slock, flags);
644 
645 	if (rval == QLA_SUCCESS)
646 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
647 		       "Assigning new loopid=%x, portid=%x.\n",
648 		       dev->loop_id, dev->d_id.b24);
649 	else
650 		ql_log(ql_log_warn, dev->vha, 0x2087,
651 		       "No loop_id's available, portid=%x.\n",
652 		       dev->d_id.b24);
653 
654 	return rval;
655 }
656 
657 void qla2x00_clear_loop_id(fc_port_t *fcport)
658 {
659 	struct qla_hw_data *ha = fcport->vha->hw;
660 
661 	if (fcport->loop_id == FC_NO_LOOP_ID ||
662 	    qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
663 		return;
664 
665 	clear_bit(fcport->loop_id, ha->loop_id_map);
666 	fcport->loop_id = FC_NO_LOOP_ID;
667 }
668 
669 static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
670 	struct event_arg *ea)
671 {
672 	fc_port_t *fcport, *conflict_fcport;
673 	struct get_name_list_extended *e;
674 	u16 i, n, found = 0, loop_id;
675 	port_id_t id;
676 	u64 wwn;
677 	u16 data[2];
678 	u8 current_login_state, nvme_cls;
679 
680 	fcport = ea->fcport;
681 	ql_dbg(ql_dbg_disc, vha, 0xffff,
682 	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d\n",
683 	    __func__, fcport->port_name, fcport->disc_state,
684 	    fcport->fw_login_state, ea->rc,
685 	    fcport->login_gen, fcport->last_login_gen,
686 	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id);
687 
688 	if (fcport->disc_state == DSC_DELETE_PEND)
689 		return;
690 
691 	if (ea->rc) { /* rval */
692 		if (fcport->login_retry == 0) {
693 			ql_dbg(ql_dbg_disc, vha, 0x20de,
694 			    "GNL failed Port login retry %8phN, retry cnt=%d.\n",
695 			    fcport->port_name, fcport->login_retry);
696 		}
697 		return;
698 	}
699 
700 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
701 		qla_rscn_replay(fcport);
702 		qlt_schedule_sess_for_deletion(fcport);
703 		return;
704 	} else if (fcport->last_login_gen != fcport->login_gen) {
705 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
706 		    "%s %8phC login gen changed\n",
707 		    __func__, fcport->port_name);
708 		return;
709 	}
710 
711 	n = ea->data[0] / sizeof(struct get_name_list_extended);
712 
713 	ql_dbg(ql_dbg_disc, vha, 0x20e1,
714 	    "%s %d %8phC n %d %02x%02x%02x lid %d \n",
715 	    __func__, __LINE__, fcport->port_name, n,
716 	    fcport->d_id.b.domain, fcport->d_id.b.area,
717 	    fcport->d_id.b.al_pa, fcport->loop_id);
718 
719 	for (i = 0; i < n; i++) {
720 		e = &vha->gnl.l[i];
721 		wwn = wwn_to_u64(e->port_name);
722 		id.b.domain = e->port_id[2];
723 		id.b.area = e->port_id[1];
724 		id.b.al_pa = e->port_id[0];
725 		id.b.rsvd_1 = 0;
726 
727 		if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
728 			continue;
729 
730 		if (IS_SW_RESV_ADDR(id))
731 			continue;
732 
733 		found = 1;
734 
735 		loop_id = le16_to_cpu(e->nport_handle);
736 		loop_id = (loop_id & 0x7fff);
737 		nvme_cls = e->current_login_state >> 4;
738 		current_login_state = e->current_login_state & 0xf;
739 
740 		if (PRLI_PHASE(nvme_cls)) {
741 			current_login_state = nvme_cls;
742 			fcport->fc4_type &= ~FS_FC4TYPE_FCP;
743 			fcport->fc4_type |= FS_FC4TYPE_NVME;
744 		} else if (PRLI_PHASE(current_login_state)) {
745 			fcport->fc4_type |= FS_FC4TYPE_FCP;
746 			fcport->fc4_type &= ~FS_FC4TYPE_NVME;
747 		}
748 
749 		ql_dbg(ql_dbg_disc, vha, 0x20e2,
750 		    "%s found %8phC CLS [%x|%x] fc4_type %d ID[%06x|%06x] lid[%d|%d]\n",
751 		    __func__, fcport->port_name,
752 		    e->current_login_state, fcport->fw_login_state,
753 		    fcport->fc4_type, id.b24, fcport->d_id.b24,
754 		    loop_id, fcport->loop_id);
755 
756 		switch (fcport->disc_state) {
757 		case DSC_DELETE_PEND:
758 		case DSC_DELETED:
759 			break;
760 		default:
761 			if ((id.b24 != fcport->d_id.b24 &&
762 			    fcport->d_id.b24 &&
763 			    fcport->loop_id != FC_NO_LOOP_ID) ||
764 			    (fcport->loop_id != FC_NO_LOOP_ID &&
765 				fcport->loop_id != loop_id)) {
766 				ql_dbg(ql_dbg_disc, vha, 0x20e3,
767 				    "%s %d %8phC post del sess\n",
768 				    __func__, __LINE__, fcport->port_name);
769 				if (fcport->n2n_flag)
770 					fcport->d_id.b24 = 0;
771 				qlt_schedule_sess_for_deletion(fcport);
772 				return;
773 			}
774 			break;
775 		}
776 
777 		fcport->loop_id = loop_id;
778 		if (fcport->n2n_flag)
779 			fcport->d_id.b24 = id.b24;
780 
781 		wwn = wwn_to_u64(fcport->port_name);
782 		qlt_find_sess_invalidate_other(vha, wwn,
783 			id, loop_id, &conflict_fcport);
784 
785 		if (conflict_fcport) {
786 			/*
787 			 * Another share fcport share the same loop_id &
788 			 * nport id. Conflict fcport needs to finish
789 			 * cleanup before this fcport can proceed to login.
790 			 */
791 			conflict_fcport->conflict = fcport;
792 			fcport->login_pause = 1;
793 		}
794 
795 		switch (vha->hw->current_topology) {
796 		default:
797 			switch (current_login_state) {
798 			case DSC_LS_PRLI_COMP:
799 				ql_dbg(ql_dbg_disc + ql_dbg_verbose,
800 				    vha, 0x20e4, "%s %d %8phC post gpdb\n",
801 				    __func__, __LINE__, fcport->port_name);
802 
803 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
804 					fcport->port_type = FCT_INITIATOR;
805 				else
806 					fcport->port_type = FCT_TARGET;
807 				data[0] = data[1] = 0;
808 				qla2x00_post_async_adisc_work(vha, fcport,
809 				    data);
810 				break;
811 			case DSC_LS_PORT_UNAVAIL:
812 			default:
813 				if (fcport->loop_id == FC_NO_LOOP_ID) {
814 					qla2x00_find_new_loop_id(vha, fcport);
815 					fcport->fw_login_state =
816 					    DSC_LS_PORT_UNAVAIL;
817 				}
818 				ql_dbg(ql_dbg_disc, vha, 0x20e5,
819 				    "%s %d %8phC\n", __func__, __LINE__,
820 				    fcport->port_name);
821 				qla24xx_fcport_handle_login(vha, fcport);
822 				break;
823 			}
824 			break;
825 		case ISP_CFG_N:
826 			fcport->fw_login_state = current_login_state;
827 			fcport->d_id = id;
828 			switch (current_login_state) {
829 			case DSC_LS_PRLI_PEND:
830 				/*
831 				 * In the middle of PRLI. Let it finish.
832 				 * Allow relogin code to recheck state again
833 				 * with GNL. Push disc_state back to DELETED
834 				 * so GNL can go out again
835 				 */
836 				qla2x00_set_fcport_disc_state(fcport,
837 				    DSC_DELETED);
838 				break;
839 			case DSC_LS_PRLI_COMP:
840 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
841 					fcport->port_type = FCT_INITIATOR;
842 				else
843 					fcport->port_type = FCT_TARGET;
844 
845 				data[0] = data[1] = 0;
846 				qla2x00_post_async_adisc_work(vha, fcport,
847 				    data);
848 				break;
849 			case DSC_LS_PLOGI_COMP:
850 				if (fcport_is_bigger(fcport)) {
851 					/* local adapter is smaller */
852 					if (fcport->loop_id != FC_NO_LOOP_ID)
853 						qla2x00_clear_loop_id(fcport);
854 
855 					fcport->loop_id = loop_id;
856 					qla24xx_fcport_handle_login(vha,
857 					    fcport);
858 					break;
859 				}
860 				/* fall through */
861 			default:
862 				if (fcport_is_smaller(fcport)) {
863 					/* local adapter is bigger */
864 					if (fcport->loop_id != FC_NO_LOOP_ID)
865 						qla2x00_clear_loop_id(fcport);
866 
867 					fcport->loop_id = loop_id;
868 					qla24xx_fcport_handle_login(vha,
869 					    fcport);
870 				}
871 				break;
872 			}
873 			break;
874 		} /* switch (ha->current_topology) */
875 	}
876 
877 	if (!found) {
878 		switch (vha->hw->current_topology) {
879 		case ISP_CFG_F:
880 		case ISP_CFG_FL:
881 			for (i = 0; i < n; i++) {
882 				e = &vha->gnl.l[i];
883 				id.b.domain = e->port_id[0];
884 				id.b.area = e->port_id[1];
885 				id.b.al_pa = e->port_id[2];
886 				id.b.rsvd_1 = 0;
887 				loop_id = le16_to_cpu(e->nport_handle);
888 
889 				if (fcport->d_id.b24 == id.b24) {
890 					conflict_fcport =
891 					    qla2x00_find_fcport_by_wwpn(vha,
892 						e->port_name, 0);
893 					if (conflict_fcport) {
894 						ql_dbg(ql_dbg_disc + ql_dbg_verbose,
895 						    vha, 0x20e5,
896 						    "%s %d %8phC post del sess\n",
897 						    __func__, __LINE__,
898 						    conflict_fcport->port_name);
899 						qlt_schedule_sess_for_deletion
900 							(conflict_fcport);
901 					}
902 				}
903 				/*
904 				 * FW already picked this loop id for
905 				 * another fcport
906 				 */
907 				if (fcport->loop_id == loop_id)
908 					fcport->loop_id = FC_NO_LOOP_ID;
909 			}
910 			qla24xx_fcport_handle_login(vha, fcport);
911 			break;
912 		case ISP_CFG_N:
913 			qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
914 			if (time_after_eq(jiffies, fcport->dm_login_expire)) {
915 				if (fcport->n2n_link_reset_cnt < 2) {
916 					fcport->n2n_link_reset_cnt++;
917 					/*
918 					 * remote port is not sending PLOGI.
919 					 * Reset link to kick start his state
920 					 * machine
921 					 */
922 					set_bit(N2N_LINK_RESET,
923 					    &vha->dpc_flags);
924 				} else {
925 					if (fcport->n2n_chip_reset < 1) {
926 						ql_log(ql_log_info, vha, 0x705d,
927 						    "Chip reset to bring laser down");
928 						set_bit(ISP_ABORT_NEEDED,
929 						    &vha->dpc_flags);
930 						fcport->n2n_chip_reset++;
931 					} else {
932 						ql_log(ql_log_info, vha, 0x705d,
933 						    "Remote port %8ph is not coming back\n",
934 						    fcport->port_name);
935 						fcport->scan_state = 0;
936 					}
937 				}
938 				qla2xxx_wake_dpc(vha);
939 			} else {
940 				/*
941 				 * report port suppose to do PLOGI. Give him
942 				 * more time. FW will catch it.
943 				 */
944 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
945 			}
946 			break;
947 		default:
948 			break;
949 		}
950 	}
951 } /* gnl_event */
952 
953 static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
954 {
955 	struct scsi_qla_host *vha = sp->vha;
956 	unsigned long flags;
957 	struct fc_port *fcport = NULL, *tf;
958 	u16 i, n = 0, loop_id;
959 	struct event_arg ea;
960 	struct get_name_list_extended *e;
961 	u64 wwn;
962 	struct list_head h;
963 	bool found = false;
964 
965 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
966 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
967 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
968 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
969 
970 	if (res == QLA_FUNCTION_TIMEOUT)
971 		return;
972 
973 	sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
974 	memset(&ea, 0, sizeof(ea));
975 	ea.sp = sp;
976 	ea.rc = res;
977 
978 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
979 	    sizeof(struct get_name_list_extended)) {
980 		n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
981 		    sizeof(struct get_name_list_extended);
982 		ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
983 	}
984 
985 	for (i = 0; i < n; i++) {
986 		e = &vha->gnl.l[i];
987 		loop_id = le16_to_cpu(e->nport_handle);
988 		/* mask out reserve bit */
989 		loop_id = (loop_id & 0x7fff);
990 		set_bit(loop_id, vha->hw->loop_id_map);
991 		wwn = wwn_to_u64(e->port_name);
992 
993 		ql_dbg(ql_dbg_disc, vha, 0x20e8,
994 		    "%s %8phC %02x:%02x:%02x CLS %x/%x lid %x \n",
995 		    __func__, &wwn, e->port_id[2], e->port_id[1],
996 		    e->port_id[0], e->current_login_state, e->last_login_state,
997 		    (loop_id & 0x7fff));
998 	}
999 
1000 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1001 
1002 	INIT_LIST_HEAD(&h);
1003 	fcport = tf = NULL;
1004 	if (!list_empty(&vha->gnl.fcports))
1005 		list_splice_init(&vha->gnl.fcports, &h);
1006 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1007 
1008 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
1009 		list_del_init(&fcport->gnl_entry);
1010 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1011 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1012 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1013 		ea.fcport = fcport;
1014 
1015 		qla24xx_handle_gnl_done_event(vha, &ea);
1016 	}
1017 
1018 	/* create new fcport if fw has knowledge of new sessions */
1019 	for (i = 0; i < n; i++) {
1020 		port_id_t id;
1021 		u64 wwnn;
1022 
1023 		e = &vha->gnl.l[i];
1024 		wwn = wwn_to_u64(e->port_name);
1025 
1026 		found = false;
1027 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
1028 			if (!memcmp((u8 *)&wwn, fcport->port_name,
1029 			    WWN_SIZE)) {
1030 				found = true;
1031 				break;
1032 			}
1033 		}
1034 
1035 		id.b.domain = e->port_id[2];
1036 		id.b.area = e->port_id[1];
1037 		id.b.al_pa = e->port_id[0];
1038 		id.b.rsvd_1 = 0;
1039 
1040 		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
1041 			ql_dbg(ql_dbg_disc, vha, 0x2065,
1042 			    "%s %d %8phC %06x post new sess\n",
1043 			    __func__, __LINE__, (u8 *)&wwn, id.b24);
1044 			wwnn = wwn_to_u64(e->node_name);
1045 			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
1046 			    (u8 *)&wwnn, NULL, 0);
1047 		}
1048 	}
1049 
1050 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1051 	vha->gnl.sent = 0;
1052 	if (!list_empty(&vha->gnl.fcports)) {
1053 		/* retrigger gnl */
1054 		list_for_each_entry_safe(fcport, tf, &vha->gnl.fcports,
1055 		    gnl_entry) {
1056 			list_del_init(&fcport->gnl_entry);
1057 			fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1058 			if (qla24xx_post_gnl_work(vha, fcport) == QLA_SUCCESS)
1059 				break;
1060 		}
1061 	}
1062 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1063 
1064 	sp->free(sp);
1065 }
1066 
1067 int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
1068 {
1069 	srb_t *sp;
1070 	struct srb_iocb *mbx;
1071 	int rval = QLA_FUNCTION_FAILED;
1072 	unsigned long flags;
1073 	u16 *mb;
1074 
1075 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
1076 		return rval;
1077 
1078 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
1079 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
1080 
1081 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1082 	fcport->flags |= FCF_ASYNC_SENT;
1083 	qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1084 	fcport->last_rscn_gen = fcport->rscn_gen;
1085 	fcport->last_login_gen = fcport->login_gen;
1086 
1087 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
1088 	if (vha->gnl.sent) {
1089 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1090 		return QLA_SUCCESS;
1091 	}
1092 	vha->gnl.sent = 1;
1093 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1094 
1095 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1096 	if (!sp)
1097 		goto done;
1098 
1099 	sp->type = SRB_MB_IOCB;
1100 	sp->name = "gnlist";
1101 	sp->gen1 = fcport->rscn_gen;
1102 	sp->gen2 = fcport->login_gen;
1103 
1104 	mbx = &sp->u.iocb_cmd;
1105 	mbx->timeout = qla2x00_async_iocb_timeout;
1106 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
1107 
1108 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1109 	mb[0] = MBC_PORT_NODE_NAME_LIST;
1110 	mb[1] = BIT_2 | BIT_3;
1111 	mb[2] = MSW(vha->gnl.ldma);
1112 	mb[3] = LSW(vha->gnl.ldma);
1113 	mb[6] = MSW(MSD(vha->gnl.ldma));
1114 	mb[7] = LSW(MSD(vha->gnl.ldma));
1115 	mb[8] = vha->gnl.size;
1116 	mb[9] = vha->vp_idx;
1117 
1118 	sp->done = qla24xx_async_gnl_sp_done;
1119 
1120 	ql_dbg(ql_dbg_disc, vha, 0x20da,
1121 	    "Async-%s - OUT WWPN %8phC hndl %x\n",
1122 	    sp->name, fcport->port_name, sp->handle);
1123 
1124 	rval = qla2x00_start_sp(sp);
1125 	if (rval != QLA_SUCCESS)
1126 		goto done_free_sp;
1127 
1128 	return rval;
1129 
1130 done_free_sp:
1131 	sp->free(sp);
1132 done:
1133 	fcport->flags &= ~(FCF_ASYNC_ACTIVE | FCF_ASYNC_SENT);
1134 	return rval;
1135 }
1136 
1137 int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1138 {
1139 	struct qla_work_evt *e;
1140 
1141 	e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
1142 	if (!e)
1143 		return QLA_FUNCTION_FAILED;
1144 
1145 	e->u.fcport.fcport = fcport;
1146 	fcport->flags |= FCF_ASYNC_ACTIVE;
1147 	return qla2x00_post_work(vha, e);
1148 }
1149 
1150 static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
1151 {
1152 	struct scsi_qla_host *vha = sp->vha;
1153 	struct qla_hw_data *ha = vha->hw;
1154 	fc_port_t *fcport = sp->fcport;
1155 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
1156 	struct event_arg ea;
1157 
1158 	ql_dbg(ql_dbg_disc, vha, 0x20db,
1159 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
1160 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
1161 
1162 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1163 
1164 	if (res == QLA_FUNCTION_TIMEOUT)
1165 		goto done;
1166 
1167 	memset(&ea, 0, sizeof(ea));
1168 	ea.fcport = fcport;
1169 	ea.sp = sp;
1170 
1171 	qla24xx_handle_gpdb_event(vha, &ea);
1172 
1173 done:
1174 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
1175 		sp->u.iocb_cmd.u.mbx.in_dma);
1176 
1177 	sp->free(sp);
1178 }
1179 
1180 static int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1181 {
1182 	struct qla_work_evt *e;
1183 
1184 	e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
1185 	if (!e)
1186 		return QLA_FUNCTION_FAILED;
1187 
1188 	e->u.fcport.fcport = fcport;
1189 
1190 	return qla2x00_post_work(vha, e);
1191 }
1192 
1193 static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
1194 {
1195 	struct scsi_qla_host *vha = sp->vha;
1196 	struct srb_iocb *lio = &sp->u.iocb_cmd;
1197 	struct event_arg ea;
1198 
1199 	ql_dbg(ql_dbg_disc, vha, 0x2129,
1200 	    "%s %8phC res %d \n", __func__,
1201 	    sp->fcport->port_name, res);
1202 
1203 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
1204 
1205 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
1206 		memset(&ea, 0, sizeof(ea));
1207 		ea.fcport = sp->fcport;
1208 		ea.data[0] = lio->u.logio.data[0];
1209 		ea.data[1] = lio->u.logio.data[1];
1210 		ea.iop[0] = lio->u.logio.iop[0];
1211 		ea.iop[1] = lio->u.logio.iop[1];
1212 		ea.sp = sp;
1213 
1214 		qla24xx_handle_prli_done_event(vha, &ea);
1215 	}
1216 
1217 	sp->free(sp);
1218 }
1219 
1220 int
1221 qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
1222 {
1223 	srb_t *sp;
1224 	struct srb_iocb *lio;
1225 	int rval = QLA_FUNCTION_FAILED;
1226 
1227 	if (!vha->flags.online) {
1228 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1229 		    __func__, __LINE__, fcport->port_name);
1230 		return rval;
1231 	}
1232 
1233 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
1234 	    fcport->fw_login_state == DSC_LS_PRLI_PEND) &&
1235 	    qla_dual_mode_enabled(vha)) {
1236 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1237 		    __func__, __LINE__, fcport->port_name);
1238 		return rval;
1239 	}
1240 
1241 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1242 	if (!sp)
1243 		return rval;
1244 
1245 	fcport->flags |= FCF_ASYNC_SENT;
1246 	fcport->logout_completed = 0;
1247 
1248 	sp->type = SRB_PRLI_CMD;
1249 	sp->name = "prli";
1250 
1251 	lio = &sp->u.iocb_cmd;
1252 	lio->timeout = qla2x00_async_iocb_timeout;
1253 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1254 
1255 	sp->done = qla2x00_async_prli_sp_done;
1256 	lio->u.logio.flags = 0;
1257 
1258 	if (NVME_TARGET(vha->hw, fcport))
1259 		lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
1260 
1261 	ql_dbg(ql_dbg_disc, vha, 0x211b,
1262 	    "Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d %s.\n",
1263 	    fcport->port_name, sp->handle, fcport->loop_id, fcport->d_id.b24,
1264 	    fcport->login_retry, NVME_TARGET(vha->hw, fcport) ? "nvme" : "fc");
1265 
1266 	rval = qla2x00_start_sp(sp);
1267 	if (rval != QLA_SUCCESS) {
1268 		fcport->flags |= FCF_LOGIN_NEEDED;
1269 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1270 		goto done_free_sp;
1271 	}
1272 
1273 	return rval;
1274 
1275 done_free_sp:
1276 	sp->free(sp);
1277 	fcport->flags &= ~FCF_ASYNC_SENT;
1278 	return rval;
1279 }
1280 
1281 int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1282 {
1283 	struct qla_work_evt *e;
1284 
1285 	e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
1286 	if (!e)
1287 		return QLA_FUNCTION_FAILED;
1288 
1289 	e->u.fcport.fcport = fcport;
1290 	e->u.fcport.opt = opt;
1291 	fcport->flags |= FCF_ASYNC_ACTIVE;
1292 	return qla2x00_post_work(vha, e);
1293 }
1294 
1295 int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1296 {
1297 	srb_t *sp;
1298 	struct srb_iocb *mbx;
1299 	int rval = QLA_FUNCTION_FAILED;
1300 	u16 *mb;
1301 	dma_addr_t pd_dma;
1302 	struct port_database_24xx *pd;
1303 	struct qla_hw_data *ha = vha->hw;
1304 
1305 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
1306 	    fcport->loop_id == FC_NO_LOOP_ID) {
1307 		ql_log(ql_log_warn, vha, 0xffff,
1308 		    "%s: %8phC - not sending command.\n",
1309 		    __func__, fcport->port_name);
1310 		return rval;
1311 	}
1312 
1313 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1314 	if (!sp)
1315 		goto done;
1316 
1317 	qla2x00_set_fcport_disc_state(fcport, DSC_GPDB);
1318 
1319 	fcport->flags |= FCF_ASYNC_SENT;
1320 	sp->type = SRB_MB_IOCB;
1321 	sp->name = "gpdb";
1322 	sp->gen1 = fcport->rscn_gen;
1323 	sp->gen2 = fcport->login_gen;
1324 
1325 	mbx = &sp->u.iocb_cmd;
1326 	mbx->timeout = qla2x00_async_iocb_timeout;
1327 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1328 
1329 	pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
1330 	if (pd == NULL) {
1331 		ql_log(ql_log_warn, vha, 0xd043,
1332 		    "Failed to allocate port database structure.\n");
1333 		goto done_free_sp;
1334 	}
1335 
1336 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1337 	mb[0] = MBC_GET_PORT_DATABASE;
1338 	mb[1] = fcport->loop_id;
1339 	mb[2] = MSW(pd_dma);
1340 	mb[3] = LSW(pd_dma);
1341 	mb[6] = MSW(MSD(pd_dma));
1342 	mb[7] = LSW(MSD(pd_dma));
1343 	mb[9] = vha->vp_idx;
1344 	mb[10] = opt;
1345 
1346 	mbx->u.mbx.in = pd;
1347 	mbx->u.mbx.in_dma = pd_dma;
1348 
1349 	sp->done = qla24xx_async_gpdb_sp_done;
1350 
1351 	ql_dbg(ql_dbg_disc, vha, 0x20dc,
1352 	    "Async-%s %8phC hndl %x opt %x\n",
1353 	    sp->name, fcport->port_name, sp->handle, opt);
1354 
1355 	rval = qla2x00_start_sp(sp);
1356 	if (rval != QLA_SUCCESS)
1357 		goto done_free_sp;
1358 	return rval;
1359 
1360 done_free_sp:
1361 	if (pd)
1362 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
1363 
1364 	sp->free(sp);
1365 	fcport->flags &= ~FCF_ASYNC_SENT;
1366 done:
1367 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
1368 	qla24xx_post_gpdb_work(vha, fcport, opt);
1369 	return rval;
1370 }
1371 
1372 static
1373 void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1374 {
1375 	unsigned long flags;
1376 
1377 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1378 	ea->fcport->login_gen++;
1379 	ea->fcport->deleted = 0;
1380 	ea->fcport->logout_on_delete = 1;
1381 
1382 	if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
1383 		vha->fcport_count++;
1384 		ea->fcport->login_succ = 1;
1385 
1386 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1387 		qla24xx_sched_upd_fcport(ea->fcport);
1388 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1389 	} else if (ea->fcport->login_succ) {
1390 		/*
1391 		 * We have an existing session. A late RSCN delivery
1392 		 * must have triggered the session to be re-validate.
1393 		 * Session is still valid.
1394 		 */
1395 		ql_dbg(ql_dbg_disc, vha, 0x20d6,
1396 		    "%s %d %8phC session revalidate success\n",
1397 		    __func__, __LINE__, ea->fcport->port_name);
1398 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_COMPLETE);
1399 	}
1400 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1401 }
1402 
1403 static
1404 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1405 {
1406 	fc_port_t *fcport = ea->fcport;
1407 	struct port_database_24xx *pd;
1408 	struct srb *sp = ea->sp;
1409 	uint8_t	ls;
1410 
1411 	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
1412 
1413 	fcport->flags &= ~FCF_ASYNC_SENT;
1414 
1415 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
1416 	    "%s %8phC DS %d LS %d fc4_type %x rc %d\n", __func__,
1417 	    fcport->port_name, fcport->disc_state, pd->current_login_state,
1418 	    fcport->fc4_type, ea->rc);
1419 
1420 	if (fcport->disc_state == DSC_DELETE_PEND)
1421 		return;
1422 
1423 	if (NVME_TARGET(vha->hw, fcport))
1424 		ls = pd->current_login_state >> 4;
1425 	else
1426 		ls = pd->current_login_state & 0xf;
1427 
1428 	if (ea->sp->gen2 != fcport->login_gen) {
1429 		/* target side must have changed it. */
1430 
1431 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1432 		    "%s %8phC generation changed\n",
1433 		    __func__, fcport->port_name);
1434 		return;
1435 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1436 		qla_rscn_replay(fcport);
1437 		qlt_schedule_sess_for_deletion(fcport);
1438 		return;
1439 	}
1440 
1441 	switch (ls) {
1442 	case PDS_PRLI_COMPLETE:
1443 		__qla24xx_parse_gpdb(vha, fcport, pd);
1444 		break;
1445 	case PDS_PLOGI_PENDING:
1446 	case PDS_PLOGI_COMPLETE:
1447 	case PDS_PRLI_PENDING:
1448 	case PDS_PRLI2_PENDING:
1449 		/* Set discovery state back to GNL to Relogin attempt */
1450 		if (qla_dual_mode_enabled(vha) ||
1451 		    qla_ini_mode_enabled(vha)) {
1452 			qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1453 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1454 		}
1455 		return;
1456 	case PDS_LOGO_PENDING:
1457 	case PDS_PORT_UNAVAILABLE:
1458 	default:
1459 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
1460 		    __func__, __LINE__, fcport->port_name);
1461 		qlt_schedule_sess_for_deletion(fcport);
1462 		return;
1463 	}
1464 	__qla24xx_handle_gpdb_event(vha, ea);
1465 } /* gpdb event */
1466 
1467 static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1468 {
1469 	u8 login = 0;
1470 	int rc;
1471 
1472 	if (qla_tgt_mode_enabled(vha))
1473 		return;
1474 
1475 	if (qla_dual_mode_enabled(vha)) {
1476 		if (N2N_TOPO(vha->hw)) {
1477 			u64 mywwn, wwn;
1478 
1479 			mywwn = wwn_to_u64(vha->port_name);
1480 			wwn = wwn_to_u64(fcport->port_name);
1481 			if (mywwn > wwn)
1482 				login = 1;
1483 			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1484 			    && time_after_eq(jiffies,
1485 				    fcport->plogi_nack_done_deadline))
1486 				login = 1;
1487 		} else {
1488 			login = 1;
1489 		}
1490 	} else {
1491 		/* initiator mode */
1492 		login = 1;
1493 	}
1494 
1495 	if (login && fcport->login_retry) {
1496 		fcport->login_retry--;
1497 		if (fcport->loop_id == FC_NO_LOOP_ID) {
1498 			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
1499 			rc = qla2x00_find_new_loop_id(vha, fcport);
1500 			if (rc) {
1501 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
1502 				    "%s %d %8phC post del sess - out of loopid\n",
1503 				    __func__, __LINE__, fcport->port_name);
1504 				fcport->scan_state = 0;
1505 				qlt_schedule_sess_for_deletion(fcport);
1506 				return;
1507 			}
1508 		}
1509 		ql_dbg(ql_dbg_disc, vha, 0x20bf,
1510 		    "%s %d %8phC post login\n",
1511 		    __func__, __LINE__, fcport->port_name);
1512 		qla2x00_post_async_login_work(vha, fcport, NULL);
1513 	}
1514 }
1515 
1516 int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1517 {
1518 	u16 data[2];
1519 	u64 wwn;
1520 	u16 sec;
1521 
1522 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
1523 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d\n",
1524 	    __func__, fcport->port_name, fcport->disc_state,
1525 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
1526 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
1527 	    fcport->login_gen, fcport->loop_id, fcport->scan_state);
1528 
1529 	if (fcport->scan_state != QLA_FCPORT_FOUND)
1530 		return 0;
1531 
1532 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
1533 	    qla_dual_mode_enabled(vha) &&
1534 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1535 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
1536 		return 0;
1537 
1538 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP &&
1539 	    !N2N_TOPO(vha->hw)) {
1540 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1541 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1542 			return 0;
1543 		}
1544 	}
1545 
1546 	/* Target won't initiate port login if fabric is present */
1547 	if (vha->host->active_mode == MODE_TARGET && !N2N_TOPO(vha->hw))
1548 		return 0;
1549 
1550 	if (fcport->flags & FCF_ASYNC_SENT) {
1551 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1552 		return 0;
1553 	}
1554 
1555 	switch (fcport->disc_state) {
1556 	case DSC_DELETED:
1557 		wwn = wwn_to_u64(fcport->node_name);
1558 		switch (vha->hw->current_topology) {
1559 		case ISP_CFG_N:
1560 			if (fcport_is_smaller(fcport)) {
1561 				/* this adapter is bigger */
1562 				if (fcport->login_retry) {
1563 					if (fcport->loop_id == FC_NO_LOOP_ID) {
1564 						qla2x00_find_new_loop_id(vha,
1565 						    fcport);
1566 						fcport->fw_login_state =
1567 						    DSC_LS_PORT_UNAVAIL;
1568 					}
1569 					fcport->login_retry--;
1570 					qla_post_els_plogi_work(vha, fcport);
1571 				} else {
1572 					ql_log(ql_log_info, vha, 0x705d,
1573 					    "Unable to reach remote port %8phC",
1574 					    fcport->port_name);
1575 				}
1576 			} else {
1577 				qla24xx_post_gnl_work(vha, fcport);
1578 			}
1579 			break;
1580 		default:
1581 			if (wwn == 0)    {
1582 				ql_dbg(ql_dbg_disc, vha, 0xffff,
1583 				    "%s %d %8phC post GNNID\n",
1584 				    __func__, __LINE__, fcport->port_name);
1585 				qla24xx_post_gnnid_work(vha, fcport);
1586 			} else if (fcport->loop_id == FC_NO_LOOP_ID) {
1587 				ql_dbg(ql_dbg_disc, vha, 0x20bd,
1588 				    "%s %d %8phC post gnl\n",
1589 				    __func__, __LINE__, fcport->port_name);
1590 				qla24xx_post_gnl_work(vha, fcport);
1591 			} else {
1592 				qla_chk_n2n_b4_login(vha, fcport);
1593 			}
1594 			break;
1595 		}
1596 		break;
1597 
1598 	case DSC_GNL:
1599 		switch (vha->hw->current_topology) {
1600 		case ISP_CFG_N:
1601 			if ((fcport->current_login_state & 0xf) == 0x6) {
1602 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1603 				    "%s %d %8phC post GPDB work\n",
1604 				    __func__, __LINE__, fcport->port_name);
1605 				fcport->chip_reset =
1606 					vha->hw->base_qpair->chip_reset;
1607 				qla24xx_post_gpdb_work(vha, fcport, 0);
1608 			}  else {
1609 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1610 				    "%s %d %8phC post %s PRLI\n",
1611 				    __func__, __LINE__, fcport->port_name,
1612 				    NVME_TARGET(vha->hw, fcport) ? "NVME" :
1613 				    "FC");
1614 				qla24xx_post_prli_work(vha, fcport);
1615 			}
1616 			break;
1617 		default:
1618 			if (fcport->login_pause) {
1619 				ql_dbg(ql_dbg_disc, vha, 0x20d8,
1620 				    "%s %d %8phC exit\n",
1621 				    __func__, __LINE__,
1622 				    fcport->port_name);
1623 				fcport->last_rscn_gen = fcport->rscn_gen;
1624 				fcport->last_login_gen = fcport->login_gen;
1625 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1626 				break;
1627 			}
1628 			qla_chk_n2n_b4_login(vha, fcport);
1629 			break;
1630 		}
1631 		break;
1632 
1633 	case DSC_LOGIN_FAILED:
1634 		if (N2N_TOPO(vha->hw))
1635 			qla_chk_n2n_b4_login(vha, fcport);
1636 		else
1637 			qlt_schedule_sess_for_deletion(fcport);
1638 		break;
1639 
1640 	case DSC_LOGIN_COMPLETE:
1641 		/* recheck login state */
1642 		data[0] = data[1] = 0;
1643 		qla2x00_post_async_adisc_work(vha, fcport, data);
1644 		break;
1645 
1646 	case DSC_LOGIN_PEND:
1647 		if (fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1648 			qla24xx_post_prli_work(vha, fcport);
1649 		break;
1650 
1651 	case DSC_UPD_FCPORT:
1652 		sec =  jiffies_to_msecs(jiffies -
1653 		    fcport->jiffies_at_registration)/1000;
1654 		if (fcport->sec_since_registration < sec && sec &&
1655 		    !(sec % 60)) {
1656 			fcport->sec_since_registration = sec;
1657 			ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
1658 			    "%s %8phC - Slow Rport registration(%d Sec)\n",
1659 			    __func__, fcport->port_name, sec);
1660 		}
1661 
1662 		if (fcport->next_disc_state != DSC_DELETE_PEND)
1663 			fcport->next_disc_state = DSC_ADISC;
1664 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1665 		break;
1666 
1667 	default:
1668 		break;
1669 	}
1670 
1671 	return 0;
1672 }
1673 
1674 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
1675     u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
1676 {
1677 	struct qla_work_evt *e;
1678 
1679 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
1680 	if (!e)
1681 		return QLA_FUNCTION_FAILED;
1682 
1683 	e->u.new_sess.id = *id;
1684 	e->u.new_sess.pla = pla;
1685 	e->u.new_sess.fc4_type = fc4_type;
1686 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
1687 	if (node_name)
1688 		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
1689 
1690 	return qla2x00_post_work(vha, e);
1691 }
1692 
1693 void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
1694 {
1695 	fc_port_t *fcport;
1696 	unsigned long flags;
1697 
1698 	fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
1699 	if (fcport) {
1700 		fcport->scan_needed = 1;
1701 		fcport->rscn_gen++;
1702 	}
1703 
1704 	spin_lock_irqsave(&vha->work_lock, flags);
1705 	if (vha->scan.scan_flags == 0) {
1706 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
1707 		vha->scan.scan_flags |= SF_QUEUED;
1708 		schedule_delayed_work(&vha->scan.scan_work, 5);
1709 	}
1710 	spin_unlock_irqrestore(&vha->work_lock, flags);
1711 }
1712 
1713 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
1714 	struct event_arg *ea)
1715 {
1716 	fc_port_t *fcport = ea->fcport;
1717 
1718 	if (test_bit(UNLOADING, &vha->dpc_flags))
1719 		return;
1720 
1721 	ql_dbg(ql_dbg_disc, vha, 0x2102,
1722 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
1723 	    __func__, fcport->port_name, fcport->disc_state,
1724 	    fcport->fw_login_state, fcport->login_pause,
1725 	    fcport->deleted, fcport->conflict,
1726 	    fcport->last_rscn_gen, fcport->rscn_gen,
1727 	    fcport->last_login_gen, fcport->login_gen,
1728 	    fcport->flags);
1729 
1730 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
1731 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
1732 		    __func__, __LINE__, fcport->port_name);
1733 		qla24xx_post_gnl_work(vha, fcport);
1734 		return;
1735 	}
1736 
1737 	qla24xx_fcport_handle_login(vha, fcport);
1738 }
1739 
1740 void qla_handle_els_plogi_done(scsi_qla_host_t *vha,
1741 				      struct event_arg *ea)
1742 {
1743 	/* for pure Target Mode, PRLI will not be initiated */
1744 	if (vha->host->active_mode == MODE_TARGET)
1745 		return;
1746 
1747 	ql_dbg(ql_dbg_disc, vha, 0x2118,
1748 	    "%s %d %8phC post PRLI\n",
1749 	    __func__, __LINE__, ea->fcport->port_name);
1750 	qla24xx_post_prli_work(vha, ea->fcport);
1751 }
1752 
1753 /*
1754  * RSCN(s) came in for this fcport, but the RSCN(s) was not able
1755  * to be consumed by the fcport
1756  */
1757 void qla_rscn_replay(fc_port_t *fcport)
1758 {
1759 	struct event_arg ea;
1760 
1761 	switch (fcport->disc_state) {
1762 	case DSC_DELETE_PEND:
1763 		return;
1764 	default:
1765 		break;
1766 	}
1767 
1768 	if (fcport->scan_needed) {
1769 		memset(&ea, 0, sizeof(ea));
1770 		ea.id = fcport->d_id;
1771 		ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
1772 		qla2x00_handle_rscn(fcport->vha, &ea);
1773 	}
1774 }
1775 
1776 static void
1777 qla2x00_tmf_iocb_timeout(void *data)
1778 {
1779 	srb_t *sp = data;
1780 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1781 	int rc, h;
1782 	unsigned long flags;
1783 
1784 	rc = qla24xx_async_abort_cmd(sp, false);
1785 	if (rc) {
1786 		spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
1787 		for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
1788 			if (sp->qpair->req->outstanding_cmds[h] == sp) {
1789 				sp->qpair->req->outstanding_cmds[h] = NULL;
1790 				break;
1791 			}
1792 		}
1793 		spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
1794 		tmf->u.tmf.comp_status = cpu_to_le16(CS_TIMEOUT);
1795 		tmf->u.tmf.data = QLA_FUNCTION_FAILED;
1796 		complete(&tmf->u.tmf.comp);
1797 	}
1798 }
1799 
1800 static void qla2x00_tmf_sp_done(srb_t *sp, int res)
1801 {
1802 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1803 
1804 	complete(&tmf->u.tmf.comp);
1805 }
1806 
1807 int
1808 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
1809 	uint32_t tag)
1810 {
1811 	struct scsi_qla_host *vha = fcport->vha;
1812 	struct srb_iocb *tm_iocb;
1813 	srb_t *sp;
1814 	int rval = QLA_FUNCTION_FAILED;
1815 
1816 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1817 	if (!sp)
1818 		goto done;
1819 
1820 	tm_iocb = &sp->u.iocb_cmd;
1821 	sp->type = SRB_TM_CMD;
1822 	sp->name = "tmf";
1823 
1824 	tm_iocb->timeout = qla2x00_tmf_iocb_timeout;
1825 	init_completion(&tm_iocb->u.tmf.comp);
1826 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
1827 
1828 	tm_iocb->u.tmf.flags = flags;
1829 	tm_iocb->u.tmf.lun = lun;
1830 	tm_iocb->u.tmf.data = tag;
1831 	sp->done = qla2x00_tmf_sp_done;
1832 
1833 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
1834 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
1835 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
1836 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
1837 
1838 	rval = qla2x00_start_sp(sp);
1839 	if (rval != QLA_SUCCESS)
1840 		goto done_free_sp;
1841 	wait_for_completion(&tm_iocb->u.tmf.comp);
1842 
1843 	rval = tm_iocb->u.tmf.data;
1844 
1845 	if (rval != QLA_SUCCESS) {
1846 		ql_log(ql_log_warn, vha, 0x8030,
1847 		    "TM IOCB failed (%x).\n", rval);
1848 	}
1849 
1850 	if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
1851 		flags = tm_iocb->u.tmf.flags;
1852 		lun = (uint16_t)tm_iocb->u.tmf.lun;
1853 
1854 		/* Issue Marker IOCB */
1855 		qla2x00_marker(vha, vha->hw->base_qpair,
1856 		    fcport->loop_id, lun,
1857 		    flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
1858 	}
1859 
1860 done_free_sp:
1861 	sp->free(sp);
1862 	fcport->flags &= ~FCF_ASYNC_SENT;
1863 done:
1864 	return rval;
1865 }
1866 
1867 int
1868 qla24xx_async_abort_command(srb_t *sp)
1869 {
1870 	unsigned long   flags = 0;
1871 
1872 	uint32_t	handle;
1873 	fc_port_t	*fcport = sp->fcport;
1874 	struct qla_qpair *qpair = sp->qpair;
1875 	struct scsi_qla_host *vha = fcport->vha;
1876 	struct req_que *req = qpair->req;
1877 
1878 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1879 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
1880 		if (req->outstanding_cmds[handle] == sp)
1881 			break;
1882 	}
1883 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1884 
1885 	if (handle == req->num_outstanding_cmds) {
1886 		/* Command not found. */
1887 		return QLA_FUNCTION_FAILED;
1888 	}
1889 	if (sp->type == SRB_FXIOCB_DCMD)
1890 		return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1891 		    FXDISC_ABORT_IOCTL);
1892 
1893 	return qla24xx_async_abort_cmd(sp, true);
1894 }
1895 
1896 static void
1897 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1898 {
1899 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
1900 		  ea->data[0]);
1901 
1902 	switch (ea->data[0]) {
1903 	case MBS_COMMAND_COMPLETE:
1904 		ql_dbg(ql_dbg_disc, vha, 0x2118,
1905 		    "%s %d %8phC post gpdb\n",
1906 		    __func__, __LINE__, ea->fcport->port_name);
1907 
1908 		ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
1909 		ea->fcport->logout_on_delete = 1;
1910 		ea->fcport->nvme_prli_service_param = ea->iop[0];
1911 		if (ea->iop[0] & NVME_PRLI_SP_FIRST_BURST)
1912 			ea->fcport->nvme_first_burst_size =
1913 			    (ea->iop[1] & 0xffff) * 512;
1914 		else
1915 			ea->fcport->nvme_first_burst_size = 0;
1916 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1917 		break;
1918 	default:
1919 		if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) &&
1920 		    (ea->iop[1] == 0x50000)) {   /* reson 5=busy expl:0x0 */
1921 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1922 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
1923 			break;
1924 		}
1925 
1926 		/*
1927 		 * Retry PRLI with other FC-4 type if failure occurred on dual
1928 		 * FCP/NVMe port
1929 		 */
1930 		if (NVME_FCP_TARGET(ea->fcport)) {
1931 			ql_dbg(ql_dbg_disc, vha, 0x2118,
1932 				"%s %d %8phC post %s prli\n",
1933 				__func__, __LINE__, ea->fcport->port_name,
1934 				(ea->fcport->fc4_type & FS_FC4TYPE_NVME) ?
1935 				"NVMe" : "FCP");
1936 			if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME)
1937 				ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME;
1938 			else
1939 				ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP;
1940 		}
1941 
1942 		ea->fcport->flags &= ~FCF_ASYNC_SENT;
1943 		ea->fcport->keep_nport_handle = 0;
1944 		ea->fcport->logout_on_delete = 1;
1945 		qlt_schedule_sess_for_deletion(ea->fcport);
1946 		break;
1947 	}
1948 }
1949 
1950 void
1951 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1952 {
1953 	port_id_t cid;	/* conflict Nport id */
1954 	u16 lid;
1955 	struct fc_port *conflict_fcport;
1956 	unsigned long flags;
1957 	struct fc_port *fcport = ea->fcport;
1958 
1959 	ql_dbg(ql_dbg_disc, vha, 0xffff,
1960 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
1961 	    __func__, fcport->port_name, fcport->disc_state,
1962 	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
1963 	    ea->sp->gen1, fcport->rscn_gen,
1964 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
1965 
1966 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1967 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
1968 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
1969 		    "%s %d %8phC Remote is trying to login\n",
1970 		    __func__, __LINE__, fcport->port_name);
1971 		return;
1972 	}
1973 
1974 	if ((fcport->disc_state == DSC_DELETE_PEND) ||
1975 	    (fcport->disc_state == DSC_DELETED)) {
1976 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1977 		return;
1978 	}
1979 
1980 	if (ea->sp->gen2 != fcport->login_gen) {
1981 		/* target side must have changed it. */
1982 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1983 		    "%s %8phC generation changed\n",
1984 		    __func__, fcport->port_name);
1985 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1986 		return;
1987 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1988 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1989 		    "%s %8phC RSCN generation changed\n",
1990 		    __func__, fcport->port_name);
1991 		qla_rscn_replay(fcport);
1992 		qlt_schedule_sess_for_deletion(fcport);
1993 		return;
1994 	}
1995 
1996 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
1997 		  ea->data[0]);
1998 
1999 	switch (ea->data[0]) {
2000 	case MBS_COMMAND_COMPLETE:
2001 		/*
2002 		 * Driver must validate login state - If PRLI not complete,
2003 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
2004 		 * requests.
2005 		 */
2006 		if (NVME_TARGET(vha->hw, ea->fcport)) {
2007 			ql_dbg(ql_dbg_disc, vha, 0x2117,
2008 				"%s %d %8phC post prli\n",
2009 				__func__, __LINE__, ea->fcport->port_name);
2010 			qla24xx_post_prli_work(vha, ea->fcport);
2011 		} else {
2012 			ql_dbg(ql_dbg_disc, vha, 0x20ea,
2013 			    "%s %d %8phC LoopID 0x%x in use with %06x. post gpdb\n",
2014 			    __func__, __LINE__, ea->fcport->port_name,
2015 			    ea->fcport->loop_id, ea->fcport->d_id.b24);
2016 
2017 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2018 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
2019 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2020 			ea->fcport->logout_on_delete = 1;
2021 			ea->fcport->send_els_logo = 0;
2022 			ea->fcport->fw_login_state = DSC_LS_PRLI_COMP;
2023 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
2024 
2025 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
2026 		}
2027 		break;
2028 	case MBS_COMMAND_ERROR:
2029 		ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
2030 		    __func__, __LINE__, ea->fcport->port_name, ea->data[1]);
2031 
2032 		ea->fcport->flags &= ~FCF_ASYNC_SENT;
2033 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_FAILED);
2034 		if (ea->data[1] & QLA_LOGIO_LOGIN_RETRIED)
2035 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2036 		else
2037 			qla2x00_mark_device_lost(vha, ea->fcport, 1);
2038 		break;
2039 	case MBS_LOOP_ID_USED:
2040 		/* data[1] = IO PARAM 1 = nport ID  */
2041 		cid.b.domain = (ea->iop[1] >> 16) & 0xff;
2042 		cid.b.area   = (ea->iop[1] >>  8) & 0xff;
2043 		cid.b.al_pa  = ea->iop[1] & 0xff;
2044 		cid.b.rsvd_1 = 0;
2045 
2046 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
2047 		    "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
2048 		    __func__, __LINE__, ea->fcport->port_name,
2049 		    ea->fcport->loop_id, cid.b24);
2050 
2051 		set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2052 		ea->fcport->loop_id = FC_NO_LOOP_ID;
2053 		qla24xx_post_gnl_work(vha, ea->fcport);
2054 		break;
2055 	case MBS_PORT_ID_USED:
2056 		lid = ea->iop[1] & 0xffff;
2057 		qlt_find_sess_invalidate_other(vha,
2058 		    wwn_to_u64(ea->fcport->port_name),
2059 		    ea->fcport->d_id, lid, &conflict_fcport);
2060 
2061 		if (conflict_fcport) {
2062 			/*
2063 			 * Another fcport share the same loop_id/nport id.
2064 			 * Conflict fcport needs to finish cleanup before this
2065 			 * fcport can proceed to login.
2066 			 */
2067 			conflict_fcport->conflict = ea->fcport;
2068 			ea->fcport->login_pause = 1;
2069 
2070 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2071 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
2072 			    __func__, __LINE__, ea->fcport->port_name,
2073 			    ea->fcport->d_id.b24, lid);
2074 		} else {
2075 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2076 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
2077 			    __func__, __LINE__, ea->fcport->port_name,
2078 			    ea->fcport->d_id.b24, lid);
2079 
2080 			qla2x00_clear_loop_id(ea->fcport);
2081 			set_bit(lid, vha->hw->loop_id_map);
2082 			ea->fcport->loop_id = lid;
2083 			ea->fcport->keep_nport_handle = 0;
2084 			ea->fcport->logout_on_delete = 1;
2085 			qlt_schedule_sess_for_deletion(ea->fcport);
2086 		}
2087 		break;
2088 	}
2089 	return;
2090 }
2091 
2092 /****************************************************************************/
2093 /*                QLogic ISP2x00 Hardware Support Functions.                */
2094 /****************************************************************************/
2095 
2096 static int
2097 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
2098 {
2099 	int rval = QLA_SUCCESS;
2100 	struct qla_hw_data *ha = vha->hw;
2101 	uint32_t idc_major_ver, idc_minor_ver;
2102 	uint16_t config[4];
2103 
2104 	qla83xx_idc_lock(vha, 0);
2105 
2106 	/* SV: TODO: Assign initialization timeout from
2107 	 * flash-info / other param
2108 	 */
2109 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
2110 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
2111 
2112 	/* Set our fcoe function presence */
2113 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
2114 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
2115 		    "Error while setting DRV-Presence.\n");
2116 		rval = QLA_FUNCTION_FAILED;
2117 		goto exit;
2118 	}
2119 
2120 	/* Decide the reset ownership */
2121 	qla83xx_reset_ownership(vha);
2122 
2123 	/*
2124 	 * On first protocol driver load:
2125 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
2126 	 * register.
2127 	 * Others: Check compatibility with current IDC Major version.
2128 	 */
2129 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
2130 	if (ha->flags.nic_core_reset_owner) {
2131 		/* Set IDC Major version */
2132 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
2133 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
2134 
2135 		/* Clearing IDC-Lock-Recovery register */
2136 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
2137 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
2138 		/*
2139 		 * Clear further IDC participation if we are not compatible with
2140 		 * the current IDC Major Version.
2141 		 */
2142 		ql_log(ql_log_warn, vha, 0xb07d,
2143 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
2144 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
2145 		__qla83xx_clear_drv_presence(vha);
2146 		rval = QLA_FUNCTION_FAILED;
2147 		goto exit;
2148 	}
2149 	/* Each function sets its supported Minor version. */
2150 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
2151 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
2152 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
2153 
2154 	if (ha->flags.nic_core_reset_owner) {
2155 		memset(config, 0, sizeof(config));
2156 		if (!qla81xx_get_port_config(vha, config))
2157 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
2158 			    QLA8XXX_DEV_READY);
2159 	}
2160 
2161 	rval = qla83xx_idc_state_handler(vha);
2162 
2163 exit:
2164 	qla83xx_idc_unlock(vha, 0);
2165 
2166 	return rval;
2167 }
2168 
2169 /*
2170 * qla2x00_initialize_adapter
2171 *      Initialize board.
2172 *
2173 * Input:
2174 *      ha = adapter block pointer.
2175 *
2176 * Returns:
2177 *      0 = success
2178 */
2179 int
2180 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
2181 {
2182 	int	rval;
2183 	struct qla_hw_data *ha = vha->hw;
2184 	struct req_que *req = ha->req_q_map[0];
2185 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2186 
2187 	memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
2188 	memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
2189 
2190 	/* Clear adapter flags. */
2191 	vha->flags.online = 0;
2192 	ha->flags.chip_reset_done = 0;
2193 	vha->flags.reset_active = 0;
2194 	ha->flags.pci_channel_io_perm_failure = 0;
2195 	ha->flags.eeh_busy = 0;
2196 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
2197 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2198 	atomic_set(&vha->loop_state, LOOP_DOWN);
2199 	vha->device_flags = DFLG_NO_CABLE;
2200 	vha->dpc_flags = 0;
2201 	vha->flags.management_server_logged_in = 0;
2202 	vha->marker_needed = 0;
2203 	ha->isp_abort_cnt = 0;
2204 	ha->beacon_blink_led = 0;
2205 
2206 	set_bit(0, ha->req_qid_map);
2207 	set_bit(0, ha->rsp_qid_map);
2208 
2209 	ql_dbg(ql_dbg_init, vha, 0x0040,
2210 	    "Configuring PCI space...\n");
2211 	rval = ha->isp_ops->pci_config(vha);
2212 	if (rval) {
2213 		ql_log(ql_log_warn, vha, 0x0044,
2214 		    "Unable to configure PCI space.\n");
2215 		return (rval);
2216 	}
2217 
2218 	ha->isp_ops->reset_chip(vha);
2219 
2220 	/* Check for secure flash support */
2221 	if (IS_QLA28XX(ha)) {
2222 		if (rd_reg_word(&reg->mailbox12) & BIT_0)
2223 			ha->flags.secure_adapter = 1;
2224 		ql_log(ql_log_info, vha, 0xffff, "Secure Adapter: %s\n",
2225 		    (ha->flags.secure_adapter) ? "Yes" : "No");
2226 	}
2227 
2228 
2229 	rval = qla2xxx_get_flash_info(vha);
2230 	if (rval) {
2231 		ql_log(ql_log_fatal, vha, 0x004f,
2232 		    "Unable to validate FLASH data.\n");
2233 		return rval;
2234 	}
2235 
2236 	if (IS_QLA8044(ha)) {
2237 		qla8044_read_reset_template(vha);
2238 
2239 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
2240 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
2241 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
2242 		 * should honor the reset. */
2243 		if (ql2xdontresethba == 1)
2244 			qla8044_set_idc_dontreset(vha);
2245 	}
2246 
2247 	ha->isp_ops->get_flash_version(vha, req->ring);
2248 	ql_dbg(ql_dbg_init, vha, 0x0061,
2249 	    "Configure NVRAM parameters...\n");
2250 
2251 	/* Let priority default to FCP, can be overridden by nvram_config */
2252 	ha->fc4_type_priority = FC4_PRIORITY_FCP;
2253 
2254 	ha->isp_ops->nvram_config(vha);
2255 
2256 	if (ha->fc4_type_priority != FC4_PRIORITY_FCP &&
2257 	    ha->fc4_type_priority != FC4_PRIORITY_NVME)
2258 		ha->fc4_type_priority = FC4_PRIORITY_FCP;
2259 
2260 	ql_log(ql_log_info, vha, 0xffff, "FC4 priority set to %s\n",
2261 	       ha->fc4_type_priority == FC4_PRIORITY_FCP ? "FCP" : "NVMe");
2262 
2263 	if (ha->flags.disable_serdes) {
2264 		/* Mask HBA via NVRAM settings? */
2265 		ql_log(ql_log_info, vha, 0x0077,
2266 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
2267 		return QLA_FUNCTION_FAILED;
2268 	}
2269 
2270 	ql_dbg(ql_dbg_init, vha, 0x0078,
2271 	    "Verifying loaded RISC code...\n");
2272 
2273 	/* If smartsan enabled then require fdmi and rdp enabled */
2274 	if (ql2xsmartsan) {
2275 		ql2xfdmienable = 1;
2276 		ql2xrdpenable = 1;
2277 	}
2278 
2279 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
2280 		rval = ha->isp_ops->chip_diag(vha);
2281 		if (rval)
2282 			return (rval);
2283 		rval = qla2x00_setup_chip(vha);
2284 		if (rval)
2285 			return (rval);
2286 	}
2287 
2288 	if (IS_QLA84XX(ha)) {
2289 		ha->cs84xx = qla84xx_get_chip(vha);
2290 		if (!ha->cs84xx) {
2291 			ql_log(ql_log_warn, vha, 0x00d0,
2292 			    "Unable to configure ISP84XX.\n");
2293 			return QLA_FUNCTION_FAILED;
2294 		}
2295 	}
2296 
2297 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
2298 		rval = qla2x00_init_rings(vha);
2299 
2300 	/* No point in continuing if firmware initialization failed. */
2301 	if (rval != QLA_SUCCESS)
2302 		return rval;
2303 
2304 	ha->flags.chip_reset_done = 1;
2305 
2306 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
2307 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
2308 		rval = qla84xx_init_chip(vha);
2309 		if (rval != QLA_SUCCESS) {
2310 			ql_log(ql_log_warn, vha, 0x00d4,
2311 			    "Unable to initialize ISP84XX.\n");
2312 			qla84xx_put_chip(vha);
2313 		}
2314 	}
2315 
2316 	/* Load the NIC Core f/w if we are the first protocol driver. */
2317 	if (IS_QLA8031(ha)) {
2318 		rval = qla83xx_nic_core_fw_load(vha);
2319 		if (rval)
2320 			ql_log(ql_log_warn, vha, 0x0124,
2321 			    "Error in initializing NIC Core f/w.\n");
2322 	}
2323 
2324 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
2325 		qla24xx_read_fcp_prio_cfg(vha);
2326 
2327 	if (IS_P3P_TYPE(ha))
2328 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
2329 	else
2330 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
2331 
2332 	return (rval);
2333 }
2334 
2335 /**
2336  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
2337  * @vha: HA context
2338  *
2339  * Returns 0 on success.
2340  */
2341 int
2342 qla2100_pci_config(scsi_qla_host_t *vha)
2343 {
2344 	uint16_t w;
2345 	unsigned long flags;
2346 	struct qla_hw_data *ha = vha->hw;
2347 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2348 
2349 	pci_set_master(ha->pdev);
2350 	pci_try_set_mwi(ha->pdev);
2351 
2352 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2353 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2354 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2355 
2356 	pci_disable_rom(ha->pdev);
2357 
2358 	/* Get PCI bus information. */
2359 	spin_lock_irqsave(&ha->hardware_lock, flags);
2360 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2361 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2362 
2363 	return QLA_SUCCESS;
2364 }
2365 
2366 /**
2367  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
2368  * @vha: HA context
2369  *
2370  * Returns 0 on success.
2371  */
2372 int
2373 qla2300_pci_config(scsi_qla_host_t *vha)
2374 {
2375 	uint16_t	w;
2376 	unsigned long   flags = 0;
2377 	uint32_t	cnt;
2378 	struct qla_hw_data *ha = vha->hw;
2379 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2380 
2381 	pci_set_master(ha->pdev);
2382 	pci_try_set_mwi(ha->pdev);
2383 
2384 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2385 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2386 
2387 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
2388 		w &= ~PCI_COMMAND_INTX_DISABLE;
2389 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2390 
2391 	/*
2392 	 * If this is a 2300 card and not 2312, reset the
2393 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
2394 	 * the 2310 also reports itself as a 2300 so we need to get the
2395 	 * fb revision level -- a 6 indicates it really is a 2300 and
2396 	 * not a 2310.
2397 	 */
2398 	if (IS_QLA2300(ha)) {
2399 		spin_lock_irqsave(&ha->hardware_lock, flags);
2400 
2401 		/* Pause RISC. */
2402 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2403 		for (cnt = 0; cnt < 30000; cnt++) {
2404 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
2405 				break;
2406 
2407 			udelay(10);
2408 		}
2409 
2410 		/* Select FPM registers. */
2411 		wrt_reg_word(&reg->ctrl_status, 0x20);
2412 		rd_reg_word(&reg->ctrl_status);
2413 
2414 		/* Get the fb rev level */
2415 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
2416 
2417 		if (ha->fb_rev == FPM_2300)
2418 			pci_clear_mwi(ha->pdev);
2419 
2420 		/* Deselect FPM registers. */
2421 		wrt_reg_word(&reg->ctrl_status, 0x0);
2422 		rd_reg_word(&reg->ctrl_status);
2423 
2424 		/* Release RISC module. */
2425 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2426 		for (cnt = 0; cnt < 30000; cnt++) {
2427 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
2428 				break;
2429 
2430 			udelay(10);
2431 		}
2432 
2433 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
2434 	}
2435 
2436 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2437 
2438 	pci_disable_rom(ha->pdev);
2439 
2440 	/* Get PCI bus information. */
2441 	spin_lock_irqsave(&ha->hardware_lock, flags);
2442 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2443 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2444 
2445 	return QLA_SUCCESS;
2446 }
2447 
2448 /**
2449  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
2450  * @vha: HA context
2451  *
2452  * Returns 0 on success.
2453  */
2454 int
2455 qla24xx_pci_config(scsi_qla_host_t *vha)
2456 {
2457 	uint16_t w;
2458 	unsigned long flags = 0;
2459 	struct qla_hw_data *ha = vha->hw;
2460 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2461 
2462 	pci_set_master(ha->pdev);
2463 	pci_try_set_mwi(ha->pdev);
2464 
2465 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2466 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2467 	w &= ~PCI_COMMAND_INTX_DISABLE;
2468 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2469 
2470 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2471 
2472 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
2473 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
2474 		pcix_set_mmrbc(ha->pdev, 2048);
2475 
2476 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2477 	if (pci_is_pcie(ha->pdev))
2478 		pcie_set_readrq(ha->pdev, 4096);
2479 
2480 	pci_disable_rom(ha->pdev);
2481 
2482 	ha->chip_revision = ha->pdev->revision;
2483 
2484 	/* Get PCI bus information. */
2485 	spin_lock_irqsave(&ha->hardware_lock, flags);
2486 	ha->pci_attr = rd_reg_dword(&reg->ctrl_status);
2487 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2488 
2489 	return QLA_SUCCESS;
2490 }
2491 
2492 /**
2493  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
2494  * @vha: HA context
2495  *
2496  * Returns 0 on success.
2497  */
2498 int
2499 qla25xx_pci_config(scsi_qla_host_t *vha)
2500 {
2501 	uint16_t w;
2502 	struct qla_hw_data *ha = vha->hw;
2503 
2504 	pci_set_master(ha->pdev);
2505 	pci_try_set_mwi(ha->pdev);
2506 
2507 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2508 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2509 	w &= ~PCI_COMMAND_INTX_DISABLE;
2510 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2511 
2512 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2513 	if (pci_is_pcie(ha->pdev))
2514 		pcie_set_readrq(ha->pdev, 4096);
2515 
2516 	pci_disable_rom(ha->pdev);
2517 
2518 	ha->chip_revision = ha->pdev->revision;
2519 
2520 	return QLA_SUCCESS;
2521 }
2522 
2523 /**
2524  * qla2x00_isp_firmware() - Choose firmware image.
2525  * @vha: HA context
2526  *
2527  * Returns 0 on success.
2528  */
2529 static int
2530 qla2x00_isp_firmware(scsi_qla_host_t *vha)
2531 {
2532 	int  rval;
2533 	uint16_t loop_id, topo, sw_cap;
2534 	uint8_t domain, area, al_pa;
2535 	struct qla_hw_data *ha = vha->hw;
2536 
2537 	/* Assume loading risc code */
2538 	rval = QLA_FUNCTION_FAILED;
2539 
2540 	if (ha->flags.disable_risc_code_load) {
2541 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
2542 
2543 		/* Verify checksum of loaded RISC code. */
2544 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
2545 		if (rval == QLA_SUCCESS) {
2546 			/* And, verify we are not in ROM code. */
2547 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2548 			    &area, &domain, &topo, &sw_cap);
2549 		}
2550 	}
2551 
2552 	if (rval)
2553 		ql_dbg(ql_dbg_init, vha, 0x007a,
2554 		    "**** Load RISC code ****.\n");
2555 
2556 	return (rval);
2557 }
2558 
2559 /**
2560  * qla2x00_reset_chip() - Reset ISP chip.
2561  * @vha: HA context
2562  *
2563  * Returns 0 on success.
2564  */
2565 int
2566 qla2x00_reset_chip(scsi_qla_host_t *vha)
2567 {
2568 	unsigned long   flags = 0;
2569 	struct qla_hw_data *ha = vha->hw;
2570 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2571 	uint32_t	cnt;
2572 	uint16_t	cmd;
2573 	int rval = QLA_FUNCTION_FAILED;
2574 
2575 	if (unlikely(pci_channel_offline(ha->pdev)))
2576 		return rval;
2577 
2578 	ha->isp_ops->disable_intrs(ha);
2579 
2580 	spin_lock_irqsave(&ha->hardware_lock, flags);
2581 
2582 	/* Turn off master enable */
2583 	cmd = 0;
2584 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
2585 	cmd &= ~PCI_COMMAND_MASTER;
2586 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2587 
2588 	if (!IS_QLA2100(ha)) {
2589 		/* Pause RISC. */
2590 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2591 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
2592 			for (cnt = 0; cnt < 30000; cnt++) {
2593 				if ((rd_reg_word(&reg->hccr) &
2594 				    HCCR_RISC_PAUSE) != 0)
2595 					break;
2596 				udelay(100);
2597 			}
2598 		} else {
2599 			rd_reg_word(&reg->hccr);	/* PCI Posting. */
2600 			udelay(10);
2601 		}
2602 
2603 		/* Select FPM registers. */
2604 		wrt_reg_word(&reg->ctrl_status, 0x20);
2605 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2606 
2607 		/* FPM Soft Reset. */
2608 		wrt_reg_word(&reg->fpm_diag_config, 0x100);
2609 		rd_reg_word(&reg->fpm_diag_config);	/* PCI Posting. */
2610 
2611 		/* Toggle Fpm Reset. */
2612 		if (!IS_QLA2200(ha)) {
2613 			wrt_reg_word(&reg->fpm_diag_config, 0x0);
2614 			rd_reg_word(&reg->fpm_diag_config); /* PCI Posting. */
2615 		}
2616 
2617 		/* Select frame buffer registers. */
2618 		wrt_reg_word(&reg->ctrl_status, 0x10);
2619 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2620 
2621 		/* Reset frame buffer FIFOs. */
2622 		if (IS_QLA2200(ha)) {
2623 			WRT_FB_CMD_REG(ha, reg, 0xa000);
2624 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
2625 		} else {
2626 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
2627 
2628 			/* Read back fb_cmd until zero or 3 seconds max */
2629 			for (cnt = 0; cnt < 3000; cnt++) {
2630 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
2631 					break;
2632 				udelay(100);
2633 			}
2634 		}
2635 
2636 		/* Select RISC module registers. */
2637 		wrt_reg_word(&reg->ctrl_status, 0);
2638 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2639 
2640 		/* Reset RISC processor. */
2641 		wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2642 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2643 
2644 		/* Release RISC processor. */
2645 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2646 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2647 	}
2648 
2649 	wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
2650 	wrt_reg_word(&reg->hccr, HCCR_CLR_HOST_INT);
2651 
2652 	/* Reset ISP chip. */
2653 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2654 
2655 	/* Wait for RISC to recover from reset. */
2656 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2657 		/*
2658 		 * It is necessary to for a delay here since the card doesn't
2659 		 * respond to PCI reads during a reset. On some architectures
2660 		 * this will result in an MCA.
2661 		 */
2662 		udelay(20);
2663 		for (cnt = 30000; cnt; cnt--) {
2664 			if ((rd_reg_word(&reg->ctrl_status) &
2665 			    CSR_ISP_SOFT_RESET) == 0)
2666 				break;
2667 			udelay(100);
2668 		}
2669 	} else
2670 		udelay(10);
2671 
2672 	/* Reset RISC processor. */
2673 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2674 
2675 	wrt_reg_word(&reg->semaphore, 0);
2676 
2677 	/* Release RISC processor. */
2678 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2679 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
2680 
2681 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2682 		for (cnt = 0; cnt < 30000; cnt++) {
2683 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
2684 				break;
2685 
2686 			udelay(100);
2687 		}
2688 	} else
2689 		udelay(100);
2690 
2691 	/* Turn on master enable */
2692 	cmd |= PCI_COMMAND_MASTER;
2693 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2694 
2695 	/* Disable RISC pause on FPM parity error. */
2696 	if (!IS_QLA2100(ha)) {
2697 		wrt_reg_word(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
2698 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2699 	}
2700 
2701 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2702 
2703 	return QLA_SUCCESS;
2704 }
2705 
2706 /**
2707  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
2708  * @vha: HA context
2709  *
2710  * Returns 0 on success.
2711  */
2712 static int
2713 qla81xx_reset_mpi(scsi_qla_host_t *vha)
2714 {
2715 	uint16_t mb[4] = {0x1010, 0, 1, 0};
2716 
2717 	if (!IS_QLA81XX(vha->hw))
2718 		return QLA_SUCCESS;
2719 
2720 	return qla81xx_write_mpi_register(vha, mb);
2721 }
2722 
2723 /**
2724  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
2725  * @vha: HA context
2726  *
2727  * Returns 0 on success.
2728  */
2729 static inline int
2730 qla24xx_reset_risc(scsi_qla_host_t *vha)
2731 {
2732 	unsigned long flags = 0;
2733 	struct qla_hw_data *ha = vha->hw;
2734 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2735 	uint32_t cnt;
2736 	uint16_t wd;
2737 	static int abts_cnt; /* ISP abort retry counts */
2738 	int rval = QLA_SUCCESS;
2739 
2740 	spin_lock_irqsave(&ha->hardware_lock, flags);
2741 
2742 	/* Reset RISC. */
2743 	wrt_reg_dword(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2744 	for (cnt = 0; cnt < 30000; cnt++) {
2745 		if ((rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
2746 			break;
2747 
2748 		udelay(10);
2749 	}
2750 
2751 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE))
2752 		set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
2753 
2754 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
2755 	    "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
2756 	    rd_reg_dword(&reg->hccr),
2757 	    rd_reg_dword(&reg->ctrl_status),
2758 	    (rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE));
2759 
2760 	wrt_reg_dword(&reg->ctrl_status,
2761 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2762 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
2763 
2764 	udelay(100);
2765 
2766 	/* Wait for firmware to complete NVRAM accesses. */
2767 	rd_reg_word(&reg->mailbox0);
2768 	for (cnt = 10000; rd_reg_word(&reg->mailbox0) != 0 &&
2769 	    rval == QLA_SUCCESS; cnt--) {
2770 		barrier();
2771 		if (cnt)
2772 			udelay(5);
2773 		else
2774 			rval = QLA_FUNCTION_TIMEOUT;
2775 	}
2776 
2777 	if (rval == QLA_SUCCESS)
2778 		set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
2779 
2780 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
2781 	    "HCCR: 0x%x, MailBox0 Status 0x%x\n",
2782 	    rd_reg_dword(&reg->hccr),
2783 	    rd_reg_word(&reg->mailbox0));
2784 
2785 	/* Wait for soft-reset to complete. */
2786 	rd_reg_dword(&reg->ctrl_status);
2787 	for (cnt = 0; cnt < 60; cnt++) {
2788 		barrier();
2789 		if ((rd_reg_dword(&reg->ctrl_status) &
2790 		    CSRX_ISP_SOFT_RESET) == 0)
2791 			break;
2792 
2793 		udelay(5);
2794 	}
2795 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_ISP_SOFT_RESET))
2796 		set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
2797 
2798 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
2799 	    "HCCR: 0x%x, Soft Reset status: 0x%x\n",
2800 	    rd_reg_dword(&reg->hccr),
2801 	    rd_reg_dword(&reg->ctrl_status));
2802 
2803 	/* If required, do an MPI FW reset now */
2804 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
2805 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
2806 			if (++abts_cnt < 5) {
2807 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2808 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
2809 			} else {
2810 				/*
2811 				 * We exhausted the ISP abort retries. We have to
2812 				 * set the board offline.
2813 				 */
2814 				abts_cnt = 0;
2815 				vha->flags.online = 0;
2816 			}
2817 		}
2818 	}
2819 
2820 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
2821 	rd_reg_dword(&reg->hccr);
2822 
2823 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
2824 	rd_reg_dword(&reg->hccr);
2825 
2826 	wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_RESET);
2827 	rd_reg_dword(&reg->hccr);
2828 
2829 	rd_reg_word(&reg->mailbox0);
2830 	for (cnt = 60; rd_reg_word(&reg->mailbox0) != 0 &&
2831 	    rval == QLA_SUCCESS; cnt--) {
2832 		barrier();
2833 		if (cnt)
2834 			udelay(5);
2835 		else
2836 			rval = QLA_FUNCTION_TIMEOUT;
2837 	}
2838 	if (rval == QLA_SUCCESS)
2839 		set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
2840 
2841 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
2842 	    "Host Risc 0x%x, mailbox0 0x%x\n",
2843 	    rd_reg_dword(&reg->hccr),
2844 	     rd_reg_word(&reg->mailbox0));
2845 
2846 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2847 
2848 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
2849 	    "Driver in %s mode\n",
2850 	    IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
2851 
2852 	if (IS_NOPOLLING_TYPE(ha))
2853 		ha->isp_ops->enable_intrs(ha);
2854 
2855 	return rval;
2856 }
2857 
2858 static void
2859 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
2860 {
2861 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2862 
2863 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2864 	*data = rd_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET);
2865 }
2866 
2867 static void
2868 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
2869 {
2870 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2871 
2872 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2873 	wrt_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET, data);
2874 }
2875 
2876 static void
2877 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
2878 {
2879 	uint32_t wd32 = 0;
2880 	uint delta_msec = 100;
2881 	uint elapsed_msec = 0;
2882 	uint timeout_msec;
2883 	ulong n;
2884 
2885 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
2886 	    vha->hw->pdev->subsystem_device != 0x0240)
2887 		return;
2888 
2889 	wrt_reg_dword(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
2890 	udelay(100);
2891 
2892 attempt:
2893 	timeout_msec = TIMEOUT_SEMAPHORE;
2894 	n = timeout_msec / delta_msec;
2895 	while (n--) {
2896 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
2897 		qla25xx_read_risc_sema_reg(vha, &wd32);
2898 		if (wd32 & RISC_SEMAPHORE)
2899 			break;
2900 		msleep(delta_msec);
2901 		elapsed_msec += delta_msec;
2902 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2903 			goto force;
2904 	}
2905 
2906 	if (!(wd32 & RISC_SEMAPHORE))
2907 		goto force;
2908 
2909 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
2910 		goto acquired;
2911 
2912 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
2913 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
2914 	n = timeout_msec / delta_msec;
2915 	while (n--) {
2916 		qla25xx_read_risc_sema_reg(vha, &wd32);
2917 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
2918 			break;
2919 		msleep(delta_msec);
2920 		elapsed_msec += delta_msec;
2921 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2922 			goto force;
2923 	}
2924 
2925 	if (wd32 & RISC_SEMAPHORE_FORCE)
2926 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
2927 
2928 	goto attempt;
2929 
2930 force:
2931 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
2932 
2933 acquired:
2934 	return;
2935 }
2936 
2937 /**
2938  * qla24xx_reset_chip() - Reset ISP24xx chip.
2939  * @vha: HA context
2940  *
2941  * Returns 0 on success.
2942  */
2943 int
2944 qla24xx_reset_chip(scsi_qla_host_t *vha)
2945 {
2946 	struct qla_hw_data *ha = vha->hw;
2947 	int rval = QLA_FUNCTION_FAILED;
2948 
2949 	if (pci_channel_offline(ha->pdev) &&
2950 	    ha->flags.pci_channel_io_perm_failure) {
2951 		return rval;
2952 	}
2953 
2954 	ha->isp_ops->disable_intrs(ha);
2955 
2956 	qla25xx_manipulate_risc_semaphore(vha);
2957 
2958 	/* Perform RISC reset. */
2959 	rval = qla24xx_reset_risc(vha);
2960 
2961 	return rval;
2962 }
2963 
2964 /**
2965  * qla2x00_chip_diag() - Test chip for proper operation.
2966  * @vha: HA context
2967  *
2968  * Returns 0 on success.
2969  */
2970 int
2971 qla2x00_chip_diag(scsi_qla_host_t *vha)
2972 {
2973 	int		rval;
2974 	struct qla_hw_data *ha = vha->hw;
2975 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2976 	unsigned long	flags = 0;
2977 	uint16_t	data;
2978 	uint32_t	cnt;
2979 	uint16_t	mb[5];
2980 	struct req_que *req = ha->req_q_map[0];
2981 
2982 	/* Assume a failed state */
2983 	rval = QLA_FUNCTION_FAILED;
2984 
2985 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
2986 	       &reg->flash_address);
2987 
2988 	spin_lock_irqsave(&ha->hardware_lock, flags);
2989 
2990 	/* Reset ISP chip. */
2991 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2992 
2993 	/*
2994 	 * We need to have a delay here since the card will not respond while
2995 	 * in reset causing an MCA on some architectures.
2996 	 */
2997 	udelay(20);
2998 	data = qla2x00_debounce_register(&reg->ctrl_status);
2999 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
3000 		udelay(5);
3001 		data = rd_reg_word(&reg->ctrl_status);
3002 		barrier();
3003 	}
3004 
3005 	if (!cnt)
3006 		goto chip_diag_failed;
3007 
3008 	ql_dbg(ql_dbg_init, vha, 0x007c,
3009 	    "Reset register cleared by chip reset.\n");
3010 
3011 	/* Reset RISC processor. */
3012 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
3013 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
3014 
3015 	/* Workaround for QLA2312 PCI parity error */
3016 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
3017 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
3018 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
3019 			udelay(5);
3020 			data = RD_MAILBOX_REG(ha, reg, 0);
3021 			barrier();
3022 		}
3023 	} else
3024 		udelay(10);
3025 
3026 	if (!cnt)
3027 		goto chip_diag_failed;
3028 
3029 	/* Check product ID of chip */
3030 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
3031 
3032 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
3033 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
3034 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
3035 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
3036 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
3037 	    mb[3] != PROD_ID_3) {
3038 		ql_log(ql_log_warn, vha, 0x0062,
3039 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
3040 		    mb[1], mb[2], mb[3]);
3041 
3042 		goto chip_diag_failed;
3043 	}
3044 	ha->product_id[0] = mb[1];
3045 	ha->product_id[1] = mb[2];
3046 	ha->product_id[2] = mb[3];
3047 	ha->product_id[3] = mb[4];
3048 
3049 	/* Adjust fw RISC transfer size */
3050 	if (req->length > 1024)
3051 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
3052 	else
3053 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
3054 		    req->length;
3055 
3056 	if (IS_QLA2200(ha) &&
3057 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
3058 		/* Limit firmware transfer size with a 2200A */
3059 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
3060 
3061 		ha->device_type |= DT_ISP2200A;
3062 		ha->fw_transfer_size = 128;
3063 	}
3064 
3065 	/* Wrap Incoming Mailboxes Test. */
3066 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3067 
3068 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
3069 	rval = qla2x00_mbx_reg_test(vha);
3070 	if (rval)
3071 		ql_log(ql_log_warn, vha, 0x0080,
3072 		    "Failed mailbox send register test.\n");
3073 	else
3074 		/* Flag a successful rval */
3075 		rval = QLA_SUCCESS;
3076 	spin_lock_irqsave(&ha->hardware_lock, flags);
3077 
3078 chip_diag_failed:
3079 	if (rval)
3080 		ql_log(ql_log_info, vha, 0x0081,
3081 		    "Chip diagnostics **** FAILED ****.\n");
3082 
3083 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3084 
3085 	return (rval);
3086 }
3087 
3088 /**
3089  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
3090  * @vha: HA context
3091  *
3092  * Returns 0 on success.
3093  */
3094 int
3095 qla24xx_chip_diag(scsi_qla_host_t *vha)
3096 {
3097 	int rval;
3098 	struct qla_hw_data *ha = vha->hw;
3099 	struct req_que *req = ha->req_q_map[0];
3100 
3101 	if (IS_P3P_TYPE(ha))
3102 		return QLA_SUCCESS;
3103 
3104 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
3105 
3106 	rval = qla2x00_mbx_reg_test(vha);
3107 	if (rval) {
3108 		ql_log(ql_log_warn, vha, 0x0082,
3109 		    "Failed mailbox send register test.\n");
3110 	} else {
3111 		/* Flag a successful rval */
3112 		rval = QLA_SUCCESS;
3113 	}
3114 
3115 	return rval;
3116 }
3117 
3118 static void
3119 qla2x00_init_fce_trace(scsi_qla_host_t *vha)
3120 {
3121 	int rval;
3122 	dma_addr_t tc_dma;
3123 	void *tc;
3124 	struct qla_hw_data *ha = vha->hw;
3125 
3126 	if (!IS_FWI2_CAPABLE(ha))
3127 		return;
3128 
3129 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3130 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3131 		return;
3132 
3133 	if (ha->fce) {
3134 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3135 		       "%s: FCE Mem is already allocated.\n",
3136 		       __func__);
3137 		return;
3138 	}
3139 
3140 	/* Allocate memory for Fibre Channel Event Buffer. */
3141 	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
3142 				GFP_KERNEL);
3143 	if (!tc) {
3144 		ql_log(ql_log_warn, vha, 0x00be,
3145 		       "Unable to allocate (%d KB) for FCE.\n",
3146 		       FCE_SIZE / 1024);
3147 		return;
3148 	}
3149 
3150 	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
3151 					ha->fce_mb, &ha->fce_bufs);
3152 	if (rval) {
3153 		ql_log(ql_log_warn, vha, 0x00bf,
3154 		       "Unable to initialize FCE (%d).\n", rval);
3155 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
3156 		return;
3157 	}
3158 
3159 	ql_dbg(ql_dbg_init, vha, 0x00c0,
3160 	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
3161 
3162 	ha->flags.fce_enabled = 1;
3163 	ha->fce_dma = tc_dma;
3164 	ha->fce = tc;
3165 }
3166 
3167 static void
3168 qla2x00_init_eft_trace(scsi_qla_host_t *vha)
3169 {
3170 	int rval;
3171 	dma_addr_t tc_dma;
3172 	void *tc;
3173 	struct qla_hw_data *ha = vha->hw;
3174 
3175 	if (!IS_FWI2_CAPABLE(ha))
3176 		return;
3177 
3178 	if (ha->eft) {
3179 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3180 		    "%s: EFT Mem is already allocated.\n",
3181 		    __func__);
3182 		return;
3183 	}
3184 
3185 	/* Allocate memory for Extended Trace Buffer. */
3186 	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
3187 				GFP_KERNEL);
3188 	if (!tc) {
3189 		ql_log(ql_log_warn, vha, 0x00c1,
3190 		       "Unable to allocate (%d KB) for EFT.\n",
3191 		       EFT_SIZE / 1024);
3192 		return;
3193 	}
3194 
3195 	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
3196 	if (rval) {
3197 		ql_log(ql_log_warn, vha, 0x00c2,
3198 		       "Unable to initialize EFT (%d).\n", rval);
3199 		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
3200 		return;
3201 	}
3202 
3203 	ql_dbg(ql_dbg_init, vha, 0x00c3,
3204 	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
3205 
3206 	ha->eft_dma = tc_dma;
3207 	ha->eft = tc;
3208 }
3209 
3210 static void
3211 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
3212 {
3213 	qla2x00_init_fce_trace(vha);
3214 	qla2x00_init_eft_trace(vha);
3215 }
3216 
3217 void
3218 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
3219 {
3220 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
3221 	    eft_size, fce_size, mq_size;
3222 	struct qla_hw_data *ha = vha->hw;
3223 	struct req_que *req = ha->req_q_map[0];
3224 	struct rsp_que *rsp = ha->rsp_q_map[0];
3225 	struct qla2xxx_fw_dump *fw_dump;
3226 
3227 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
3228 	req_q_size = rsp_q_size = 0;
3229 
3230 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3231 		fixed_size = sizeof(struct qla2100_fw_dump);
3232 	} else if (IS_QLA23XX(ha)) {
3233 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
3234 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
3235 		    sizeof(uint16_t);
3236 	} else if (IS_FWI2_CAPABLE(ha)) {
3237 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3238 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
3239 		else if (IS_QLA81XX(ha))
3240 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
3241 		else if (IS_QLA25XX(ha))
3242 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
3243 		else
3244 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
3245 
3246 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
3247 		    sizeof(uint32_t);
3248 		if (ha->mqenable) {
3249 			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) &&
3250 			    !IS_QLA28XX(ha))
3251 				mq_size = sizeof(struct qla2xxx_mq_chain);
3252 			/*
3253 			 * Allocate maximum buffer size for all queues - Q0.
3254 			 * Resizing must be done at end-of-dump processing.
3255 			 */
3256 			mq_size += (ha->max_req_queues - 1) *
3257 			    (req->length * sizeof(request_t));
3258 			mq_size += (ha->max_rsp_queues - 1) *
3259 			    (rsp->length * sizeof(response_t));
3260 		}
3261 		if (ha->tgt.atio_ring)
3262 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
3263 
3264 		qla2x00_init_fce_trace(vha);
3265 		if (ha->fce)
3266 			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
3267 		qla2x00_init_eft_trace(vha);
3268 		if (ha->eft)
3269 			eft_size = EFT_SIZE;
3270 	}
3271 
3272 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3273 		struct fwdt *fwdt = ha->fwdt;
3274 		uint j;
3275 
3276 		for (j = 0; j < 2; j++, fwdt++) {
3277 			if (!fwdt->template) {
3278 				ql_dbg(ql_dbg_init, vha, 0x00ba,
3279 				    "-> fwdt%u no template\n", j);
3280 				continue;
3281 			}
3282 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3283 			    "-> fwdt%u calculating fwdump size...\n", j);
3284 			fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
3285 			    vha, fwdt->template);
3286 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3287 			    "-> fwdt%u calculated fwdump size = %#lx bytes\n",
3288 			    j, fwdt->dump_size);
3289 			dump_size += fwdt->dump_size;
3290 		}
3291 	} else {
3292 		req_q_size = req->length * sizeof(request_t);
3293 		rsp_q_size = rsp->length * sizeof(response_t);
3294 		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3295 		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
3296 			+ eft_size;
3297 		ha->chain_offset = dump_size;
3298 		dump_size += mq_size + fce_size;
3299 		if (ha->exchoffld_buf)
3300 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3301 				ha->exchoffld_size;
3302 		if (ha->exlogin_buf)
3303 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3304 				ha->exlogin_size;
3305 	}
3306 
3307 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
3308 
3309 		ql_dbg(ql_dbg_init, vha, 0x00c5,
3310 		    "%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
3311 		    __func__, dump_size, ha->fw_dump_len,
3312 		    ha->fw_dump_alloc_len);
3313 
3314 		fw_dump = vmalloc(dump_size);
3315 		if (!fw_dump) {
3316 			ql_log(ql_log_warn, vha, 0x00c4,
3317 			    "Unable to allocate (%d KB) for firmware dump.\n",
3318 			    dump_size / 1024);
3319 		} else {
3320 			mutex_lock(&ha->optrom_mutex);
3321 			if (ha->fw_dumped) {
3322 				memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
3323 				vfree(ha->fw_dump);
3324 				ha->fw_dump = fw_dump;
3325 				ha->fw_dump_alloc_len =  dump_size;
3326 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3327 				    "Re-Allocated (%d KB) and save firmware dump.\n",
3328 				    dump_size / 1024);
3329 			} else {
3330 				if (ha->fw_dump)
3331 					vfree(ha->fw_dump);
3332 				ha->fw_dump = fw_dump;
3333 
3334 				ha->fw_dump_len = ha->fw_dump_alloc_len =
3335 				    dump_size;
3336 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3337 				    "Allocated (%d KB) for firmware dump.\n",
3338 				    dump_size / 1024);
3339 
3340 				if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3341 					ha->mpi_fw_dump = (char *)fw_dump +
3342 						ha->fwdt[1].dump_size;
3343 					mutex_unlock(&ha->optrom_mutex);
3344 					return;
3345 				}
3346 
3347 				ha->fw_dump->signature[0] = 'Q';
3348 				ha->fw_dump->signature[1] = 'L';
3349 				ha->fw_dump->signature[2] = 'G';
3350 				ha->fw_dump->signature[3] = 'C';
3351 				ha->fw_dump->version = htonl(1);
3352 
3353 				ha->fw_dump->fixed_size = htonl(fixed_size);
3354 				ha->fw_dump->mem_size = htonl(mem_size);
3355 				ha->fw_dump->req_q_size = htonl(req_q_size);
3356 				ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3357 
3358 				ha->fw_dump->eft_size = htonl(eft_size);
3359 				ha->fw_dump->eft_addr_l =
3360 				    htonl(LSD(ha->eft_dma));
3361 				ha->fw_dump->eft_addr_h =
3362 				    htonl(MSD(ha->eft_dma));
3363 
3364 				ha->fw_dump->header_size =
3365 					htonl(offsetof
3366 					    (struct qla2xxx_fw_dump, isp));
3367 			}
3368 			mutex_unlock(&ha->optrom_mutex);
3369 		}
3370 	}
3371 }
3372 
3373 static int
3374 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3375 {
3376 #define MPS_MASK	0xe0
3377 	int rval;
3378 	uint16_t dc;
3379 	uint32_t dw;
3380 
3381 	if (!IS_QLA81XX(vha->hw))
3382 		return QLA_SUCCESS;
3383 
3384 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3385 	if (rval != QLA_SUCCESS) {
3386 		ql_log(ql_log_warn, vha, 0x0105,
3387 		    "Unable to acquire semaphore.\n");
3388 		goto done;
3389 	}
3390 
3391 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3392 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3393 	if (rval != QLA_SUCCESS) {
3394 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3395 		goto done_release;
3396 	}
3397 
3398 	dc &= MPS_MASK;
3399 	if (dc == (dw & MPS_MASK))
3400 		goto done_release;
3401 
3402 	dw &= ~MPS_MASK;
3403 	dw |= dc;
3404 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3405 	if (rval != QLA_SUCCESS) {
3406 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3407 	}
3408 
3409 done_release:
3410 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3411 	if (rval != QLA_SUCCESS) {
3412 		ql_log(ql_log_warn, vha, 0x006d,
3413 		    "Unable to release semaphore.\n");
3414 	}
3415 
3416 done:
3417 	return rval;
3418 }
3419 
3420 int
3421 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3422 {
3423 	/* Don't try to reallocate the array */
3424 	if (req->outstanding_cmds)
3425 		return QLA_SUCCESS;
3426 
3427 	if (!IS_FWI2_CAPABLE(ha))
3428 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3429 	else {
3430 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3431 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3432 		else
3433 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3434 	}
3435 
3436 	req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3437 					sizeof(srb_t *),
3438 					GFP_KERNEL);
3439 
3440 	if (!req->outstanding_cmds) {
3441 		/*
3442 		 * Try to allocate a minimal size just so we can get through
3443 		 * initialization.
3444 		 */
3445 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3446 		req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3447 						sizeof(srb_t *),
3448 						GFP_KERNEL);
3449 
3450 		if (!req->outstanding_cmds) {
3451 			ql_log(ql_log_fatal, NULL, 0x0126,
3452 			    "Failed to allocate memory for "
3453 			    "outstanding_cmds for req_que %p.\n", req);
3454 			req->num_outstanding_cmds = 0;
3455 			return QLA_FUNCTION_FAILED;
3456 		}
3457 	}
3458 
3459 	return QLA_SUCCESS;
3460 }
3461 
3462 #define PRINT_FIELD(_field, _flag, _str) {		\
3463 	if (a0->_field & _flag) {\
3464 		if (p) {\
3465 			strcat(ptr, "|");\
3466 			ptr++;\
3467 			leftover--;\
3468 		} \
3469 		len = snprintf(ptr, leftover, "%s", _str);	\
3470 		p = 1;\
3471 		leftover -= len;\
3472 		ptr += len; \
3473 	} \
3474 }
3475 
3476 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3477 {
3478 #define STR_LEN 64
3479 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3480 	u8 str[STR_LEN], *ptr, p;
3481 	int leftover, len;
3482 
3483 	memset(str, 0, STR_LEN);
3484 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3485 	ql_dbg(ql_dbg_init, vha, 0x015a,
3486 	    "SFP MFG Name: %s\n", str);
3487 
3488 	memset(str, 0, STR_LEN);
3489 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3490 	ql_dbg(ql_dbg_init, vha, 0x015c,
3491 	    "SFP Part Name: %s\n", str);
3492 
3493 	/* media */
3494 	memset(str, 0, STR_LEN);
3495 	ptr = str;
3496 	leftover = STR_LEN;
3497 	p = len = 0;
3498 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3499 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3500 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3501 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3502 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3503 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3504 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3505 	ql_dbg(ql_dbg_init, vha, 0x0160,
3506 	    "SFP Media: %s\n", str);
3507 
3508 	/* link length */
3509 	memset(str, 0, STR_LEN);
3510 	ptr = str;
3511 	leftover = STR_LEN;
3512 	p = len = 0;
3513 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3514 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3515 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3516 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3517 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3518 	ql_dbg(ql_dbg_init, vha, 0x0196,
3519 	    "SFP Link Length: %s\n", str);
3520 
3521 	memset(str, 0, STR_LEN);
3522 	ptr = str;
3523 	leftover = STR_LEN;
3524 	p = len = 0;
3525 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3526 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3527 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3528 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3529 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3530 	ql_dbg(ql_dbg_init, vha, 0x016e,
3531 	    "SFP FC Link Tech: %s\n", str);
3532 
3533 	if (a0->length_km)
3534 		ql_dbg(ql_dbg_init, vha, 0x016f,
3535 		    "SFP Distant: %d km\n", a0->length_km);
3536 	if (a0->length_100m)
3537 		ql_dbg(ql_dbg_init, vha, 0x0170,
3538 		    "SFP Distant: %d m\n", a0->length_100m*100);
3539 	if (a0->length_50um_10m)
3540 		ql_dbg(ql_dbg_init, vha, 0x0189,
3541 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3542 	if (a0->length_62um_10m)
3543 		ql_dbg(ql_dbg_init, vha, 0x018a,
3544 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3545 	if (a0->length_om4_10m)
3546 		ql_dbg(ql_dbg_init, vha, 0x0194,
3547 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3548 	if (a0->length_om3_10m)
3549 		ql_dbg(ql_dbg_init, vha, 0x0195,
3550 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3551 }
3552 
3553 
3554 /**
3555  * qla24xx_detect_sfp()
3556  *
3557  * @vha: adapter state pointer.
3558  *
3559  * @return
3560  *	0 -- Configure firmware to use short-range settings -- normal
3561  *	     buffer-to-buffer credits.
3562  *
3563  *	1 -- Configure firmware to use long-range settings -- extra
3564  *	     buffer-to-buffer credits should be allocated with
3565  *	     ha->lr_distance containing distance settings from NVRAM or SFP
3566  *	     (if supported).
3567  */
3568 int
3569 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3570 {
3571 	int rc, used_nvram;
3572 	struct sff_8247_a0 *a;
3573 	struct qla_hw_data *ha = vha->hw;
3574 	struct nvram_81xx *nv = ha->nvram;
3575 #define LR_DISTANCE_UNKNOWN	2
3576 	static const char * const types[] = { "Short", "Long" };
3577 	static const char * const lengths[] = { "(10km)", "(5km)", "" };
3578 	u8 ll = 0;
3579 
3580 	/* Seed with NVRAM settings. */
3581 	used_nvram = 0;
3582 	ha->flags.lr_detected = 0;
3583 	if (IS_BPM_RANGE_CAPABLE(ha) &&
3584 	    (nv->enhanced_features & NEF_LR_DIST_ENABLE)) {
3585 		used_nvram = 1;
3586 		ha->flags.lr_detected = 1;
3587 		ha->lr_distance =
3588 		    (nv->enhanced_features >> LR_DIST_NV_POS)
3589 		     & LR_DIST_NV_MASK;
3590 	}
3591 
3592 	if (!IS_BPM_ENABLED(vha))
3593 		goto out;
3594 	/* Determine SR/LR capabilities of SFP/Transceiver. */
3595 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3596 	if (rc)
3597 		goto out;
3598 
3599 	used_nvram = 0;
3600 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3601 	qla2xxx_print_sfp_info(vha);
3602 
3603 	ha->flags.lr_detected = 0;
3604 	ll = a->fc_ll_cc7;
3605 	if (ll & FC_LL_VL || ll & FC_LL_L) {
3606 		/* Long range, track length. */
3607 		ha->flags.lr_detected = 1;
3608 
3609 		if (a->length_km > 5 || a->length_100m > 50)
3610 			ha->lr_distance = LR_DISTANCE_10K;
3611 		else
3612 			ha->lr_distance = LR_DISTANCE_5K;
3613 	}
3614 
3615 out:
3616 	ql_dbg(ql_dbg_async, vha, 0x507b,
3617 	    "SFP detect: %s-Range SFP %s (nvr=%x ll=%x lr=%x lrd=%x).\n",
3618 	    types[ha->flags.lr_detected],
3619 	    ha->flags.lr_detected ? lengths[ha->lr_distance] :
3620 	       lengths[LR_DISTANCE_UNKNOWN],
3621 	    used_nvram, ll, ha->flags.lr_detected, ha->lr_distance);
3622 	return ha->flags.lr_detected;
3623 }
3624 
3625 /**
3626  * qla2x00_setup_chip() - Load and start RISC firmware.
3627  * @vha: HA context
3628  *
3629  * Returns 0 on success.
3630  */
3631 static int
3632 qla2x00_setup_chip(scsi_qla_host_t *vha)
3633 {
3634 	int rval;
3635 	uint32_t srisc_address = 0;
3636 	struct qla_hw_data *ha = vha->hw;
3637 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3638 	unsigned long flags;
3639 	uint16_t fw_major_version;
3640 	int done_once = 0;
3641 
3642 	if (IS_P3P_TYPE(ha)) {
3643 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3644 		if (rval == QLA_SUCCESS) {
3645 			qla2x00_stop_firmware(vha);
3646 			goto enable_82xx_npiv;
3647 		} else
3648 			goto failed;
3649 	}
3650 
3651 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3652 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3653 		spin_lock_irqsave(&ha->hardware_lock, flags);
3654 		wrt_reg_word(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
3655 		rd_reg_word(&reg->hccr);
3656 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3657 	}
3658 
3659 	qla81xx_mpi_sync(vha);
3660 
3661 execute_fw_with_lr:
3662 	/* Load firmware sequences */
3663 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
3664 	if (rval == QLA_SUCCESS) {
3665 		ql_dbg(ql_dbg_init, vha, 0x00c9,
3666 		    "Verifying Checksum of loaded RISC code.\n");
3667 
3668 		rval = qla2x00_verify_checksum(vha, srisc_address);
3669 		if (rval == QLA_SUCCESS) {
3670 			/* Start firmware execution. */
3671 			ql_dbg(ql_dbg_init, vha, 0x00ca,
3672 			    "Starting firmware.\n");
3673 
3674 			if (ql2xexlogins)
3675 				ha->flags.exlogins_enabled = 1;
3676 
3677 			if (qla_is_exch_offld_enabled(vha))
3678 				ha->flags.exchoffld_enabled = 1;
3679 
3680 			rval = qla2x00_execute_fw(vha, srisc_address);
3681 			/* Retrieve firmware information. */
3682 			if (rval == QLA_SUCCESS) {
3683 				/* Enable BPM support? */
3684 				if (!done_once++ && qla24xx_detect_sfp(vha)) {
3685 					ql_dbg(ql_dbg_init, vha, 0x00ca,
3686 					    "Re-starting firmware -- BPM.\n");
3687 					/* Best-effort - re-init. */
3688 					ha->isp_ops->reset_chip(vha);
3689 					ha->isp_ops->chip_diag(vha);
3690 					goto execute_fw_with_lr;
3691 				}
3692 
3693 				if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3694 				    IS_QLA28XX(ha)) &&
3695 				    (ha->zio_mode == QLA_ZIO_MODE_6))
3696 					qla27xx_set_zio_threshold(vha,
3697 					    ha->last_zio_threshold);
3698 
3699 				rval = qla2x00_set_exlogins_buffer(vha);
3700 				if (rval != QLA_SUCCESS)
3701 					goto failed;
3702 
3703 				rval = qla2x00_set_exchoffld_buffer(vha);
3704 				if (rval != QLA_SUCCESS)
3705 					goto failed;
3706 
3707 enable_82xx_npiv:
3708 				fw_major_version = ha->fw_major_version;
3709 				if (IS_P3P_TYPE(ha))
3710 					qla82xx_check_md_needed(vha);
3711 				else
3712 					rval = qla2x00_get_fw_version(vha);
3713 				if (rval != QLA_SUCCESS)
3714 					goto failed;
3715 				ha->flags.npiv_supported = 0;
3716 				if (IS_QLA2XXX_MIDTYPE(ha) &&
3717 					 (ha->fw_attributes & BIT_2)) {
3718 					ha->flags.npiv_supported = 1;
3719 					if ((!ha->max_npiv_vports) ||
3720 					    ((ha->max_npiv_vports + 1) %
3721 					    MIN_MULTI_ID_FABRIC))
3722 						ha->max_npiv_vports =
3723 						    MIN_MULTI_ID_FABRIC - 1;
3724 				}
3725 				qla2x00_get_resource_cnts(vha);
3726 
3727 				/*
3728 				 * Allocate the array of outstanding commands
3729 				 * now that we know the firmware resources.
3730 				 */
3731 				rval = qla2x00_alloc_outstanding_cmds(ha,
3732 				    vha->req);
3733 				if (rval != QLA_SUCCESS)
3734 					goto failed;
3735 
3736 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
3737 					qla2x00_alloc_offload_mem(vha);
3738 
3739 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
3740 					qla2x00_alloc_fw_dump(vha);
3741 
3742 			} else {
3743 				goto failed;
3744 			}
3745 		} else {
3746 			ql_log(ql_log_fatal, vha, 0x00cd,
3747 			    "ISP Firmware failed checksum.\n");
3748 			goto failed;
3749 		}
3750 
3751 		/* Enable PUREX PASSTHRU */
3752 		if (ql2xrdpenable)
3753 			qla25xx_set_els_cmds_supported(vha);
3754 	} else
3755 		goto failed;
3756 
3757 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3758 		/* Enable proper parity. */
3759 		spin_lock_irqsave(&ha->hardware_lock, flags);
3760 		if (IS_QLA2300(ha))
3761 			/* SRAM parity */
3762 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
3763 		else
3764 			/* SRAM, Instruction RAM and GP RAM parity */
3765 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
3766 		rd_reg_word(&reg->hccr);
3767 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3768 	}
3769 
3770 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
3771 		ha->flags.fac_supported = 1;
3772 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
3773 		uint32_t size;
3774 
3775 		rval = qla81xx_fac_get_sector_size(vha, &size);
3776 		if (rval == QLA_SUCCESS) {
3777 			ha->flags.fac_supported = 1;
3778 			ha->fdt_block_size = size << 2;
3779 		} else {
3780 			ql_log(ql_log_warn, vha, 0x00ce,
3781 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
3782 			    ha->fw_major_version, ha->fw_minor_version,
3783 			    ha->fw_subminor_version);
3784 
3785 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3786 			    IS_QLA28XX(ha)) {
3787 				ha->flags.fac_supported = 0;
3788 				rval = QLA_SUCCESS;
3789 			}
3790 		}
3791 	}
3792 failed:
3793 	if (rval) {
3794 		ql_log(ql_log_fatal, vha, 0x00cf,
3795 		    "Setup chip ****FAILED****.\n");
3796 	}
3797 
3798 	return (rval);
3799 }
3800 
3801 /**
3802  * qla2x00_init_response_q_entries() - Initializes response queue entries.
3803  * @rsp: response queue
3804  *
3805  * Beginning of request ring has initialization control block already built
3806  * by nvram config routine.
3807  *
3808  * Returns 0 on success.
3809  */
3810 void
3811 qla2x00_init_response_q_entries(struct rsp_que *rsp)
3812 {
3813 	uint16_t cnt;
3814 	response_t *pkt;
3815 
3816 	rsp->ring_ptr = rsp->ring;
3817 	rsp->ring_index    = 0;
3818 	rsp->status_srb = NULL;
3819 	pkt = rsp->ring_ptr;
3820 	for (cnt = 0; cnt < rsp->length; cnt++) {
3821 		pkt->signature = RESPONSE_PROCESSED;
3822 		pkt++;
3823 	}
3824 }
3825 
3826 /**
3827  * qla2x00_update_fw_options() - Read and process firmware options.
3828  * @vha: HA context
3829  *
3830  * Returns 0 on success.
3831  */
3832 void
3833 qla2x00_update_fw_options(scsi_qla_host_t *vha)
3834 {
3835 	uint16_t swing, emphasis, tx_sens, rx_sens;
3836 	struct qla_hw_data *ha = vha->hw;
3837 
3838 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
3839 	qla2x00_get_fw_options(vha, ha->fw_options);
3840 
3841 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
3842 		return;
3843 
3844 	/* Serial Link options. */
3845 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
3846 	    "Serial link options.\n");
3847 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
3848 	    ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
3849 
3850 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
3851 	if (ha->fw_seriallink_options[3] & BIT_2) {
3852 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
3853 
3854 		/*  1G settings */
3855 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
3856 		emphasis = (ha->fw_seriallink_options[2] &
3857 		    (BIT_4 | BIT_3)) >> 3;
3858 		tx_sens = ha->fw_seriallink_options[0] &
3859 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3860 		rx_sens = (ha->fw_seriallink_options[0] &
3861 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3862 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
3863 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3864 			if (rx_sens == 0x0)
3865 				rx_sens = 0x3;
3866 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
3867 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3868 			ha->fw_options[10] |= BIT_5 |
3869 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3870 			    (tx_sens & (BIT_1 | BIT_0));
3871 
3872 		/*  2G settings */
3873 		swing = (ha->fw_seriallink_options[2] &
3874 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
3875 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
3876 		tx_sens = ha->fw_seriallink_options[1] &
3877 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3878 		rx_sens = (ha->fw_seriallink_options[1] &
3879 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3880 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
3881 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3882 			if (rx_sens == 0x0)
3883 				rx_sens = 0x3;
3884 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
3885 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3886 			ha->fw_options[11] |= BIT_5 |
3887 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3888 			    (tx_sens & (BIT_1 | BIT_0));
3889 	}
3890 
3891 	/* FCP2 options. */
3892 	/*  Return command IOCBs without waiting for an ABTS to complete. */
3893 	ha->fw_options[3] |= BIT_13;
3894 
3895 	/* LED scheme. */
3896 	if (ha->flags.enable_led_scheme)
3897 		ha->fw_options[2] |= BIT_12;
3898 
3899 	/* Detect ISP6312. */
3900 	if (IS_QLA6312(ha))
3901 		ha->fw_options[2] |= BIT_13;
3902 
3903 	/* Set Retry FLOGI in case of P2P connection */
3904 	if (ha->operating_mode == P2P) {
3905 		ha->fw_options[2] |= BIT_3;
3906 		ql_dbg(ql_dbg_disc, vha, 0x2100,
3907 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3908 			__func__, ha->fw_options[2]);
3909 	}
3910 
3911 	/* Update firmware options. */
3912 	qla2x00_set_fw_options(vha, ha->fw_options);
3913 }
3914 
3915 void
3916 qla24xx_update_fw_options(scsi_qla_host_t *vha)
3917 {
3918 	int rval;
3919 	struct qla_hw_data *ha = vha->hw;
3920 
3921 	if (IS_P3P_TYPE(ha))
3922 		return;
3923 
3924 	/*  Hold status IOCBs until ABTS response received. */
3925 	if (ql2xfwholdabts)
3926 		ha->fw_options[3] |= BIT_12;
3927 
3928 	/* Set Retry FLOGI in case of P2P connection */
3929 	if (ha->operating_mode == P2P) {
3930 		ha->fw_options[2] |= BIT_3;
3931 		ql_dbg(ql_dbg_disc, vha, 0x2101,
3932 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3933 			__func__, ha->fw_options[2]);
3934 	}
3935 
3936 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
3937 	if (ql2xmvasynctoatio &&
3938 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
3939 		if (qla_tgt_mode_enabled(vha) ||
3940 		    qla_dual_mode_enabled(vha))
3941 			ha->fw_options[2] |= BIT_11;
3942 		else
3943 			ha->fw_options[2] &= ~BIT_11;
3944 	}
3945 
3946 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3947 	    IS_QLA28XX(ha)) {
3948 		/*
3949 		 * Tell FW to track each exchange to prevent
3950 		 * driver from using stale exchange.
3951 		 */
3952 		if (qla_tgt_mode_enabled(vha) ||
3953 		    qla_dual_mode_enabled(vha))
3954 			ha->fw_options[2] |= BIT_4;
3955 		else
3956 			ha->fw_options[2] &= ~BIT_4;
3957 
3958 		/* Reserve 1/2 of emergency exchanges for ELS.*/
3959 		if (qla2xuseresexchforels)
3960 			ha->fw_options[2] |= BIT_8;
3961 		else
3962 			ha->fw_options[2] &= ~BIT_8;
3963 	}
3964 
3965 	if (ql2xrdpenable)
3966 		ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
3967 
3968 	/* Enable Async 8130/8131 events -- transceiver insertion/removal */
3969 	if (IS_BPM_RANGE_CAPABLE(ha))
3970 		ha->fw_options[3] |= BIT_10;
3971 
3972 	ql_dbg(ql_dbg_init, vha, 0x00e8,
3973 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
3974 	    __func__, ha->fw_options[1], ha->fw_options[2],
3975 	    ha->fw_options[3], vha->host->active_mode);
3976 
3977 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
3978 		qla2x00_set_fw_options(vha, ha->fw_options);
3979 
3980 	/* Update Serial Link options. */
3981 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
3982 		return;
3983 
3984 	rval = qla2x00_set_serdes_params(vha,
3985 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
3986 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
3987 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
3988 	if (rval != QLA_SUCCESS) {
3989 		ql_log(ql_log_warn, vha, 0x0104,
3990 		    "Unable to update Serial Link options (%x).\n", rval);
3991 	}
3992 }
3993 
3994 void
3995 qla2x00_config_rings(struct scsi_qla_host *vha)
3996 {
3997 	struct qla_hw_data *ha = vha->hw;
3998 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3999 	struct req_que *req = ha->req_q_map[0];
4000 	struct rsp_que *rsp = ha->rsp_q_map[0];
4001 
4002 	/* Setup ring parameters in initialization control block. */
4003 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
4004 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
4005 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
4006 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
4007 	put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
4008 	put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
4009 
4010 	wrt_reg_word(ISP_REQ_Q_IN(ha, reg), 0);
4011 	wrt_reg_word(ISP_REQ_Q_OUT(ha, reg), 0);
4012 	wrt_reg_word(ISP_RSP_Q_IN(ha, reg), 0);
4013 	wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), 0);
4014 	rd_reg_word(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
4015 }
4016 
4017 void
4018 qla24xx_config_rings(struct scsi_qla_host *vha)
4019 {
4020 	struct qla_hw_data *ha = vha->hw;
4021 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
4022 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
4023 	struct qla_msix_entry *msix;
4024 	struct init_cb_24xx *icb;
4025 	uint16_t rid = 0;
4026 	struct req_que *req = ha->req_q_map[0];
4027 	struct rsp_que *rsp = ha->rsp_q_map[0];
4028 
4029 	/* Setup ring parameters in initialization control block. */
4030 	icb = (struct init_cb_24xx *)ha->init_cb;
4031 	icb->request_q_outpointer = cpu_to_le16(0);
4032 	icb->response_q_inpointer = cpu_to_le16(0);
4033 	icb->request_q_length = cpu_to_le16(req->length);
4034 	icb->response_q_length = cpu_to_le16(rsp->length);
4035 	put_unaligned_le64(req->dma, &icb->request_q_address);
4036 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
4037 
4038 	/* Setup ATIO queue dma pointers for target mode */
4039 	icb->atio_q_inpointer = cpu_to_le16(0);
4040 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
4041 	put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
4042 
4043 	if (IS_SHADOW_REG_CAPABLE(ha))
4044 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
4045 
4046 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4047 	    IS_QLA28XX(ha)) {
4048 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
4049 		icb->rid = cpu_to_le16(rid);
4050 		if (ha->flags.msix_enabled) {
4051 			msix = &ha->msix_entries[1];
4052 			ql_dbg(ql_dbg_init, vha, 0x0019,
4053 			    "Registering vector 0x%x for base que.\n",
4054 			    msix->entry);
4055 			icb->msix = cpu_to_le16(msix->entry);
4056 		}
4057 		/* Use alternate PCI bus number */
4058 		if (MSB(rid))
4059 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
4060 		/* Use alternate PCI devfn */
4061 		if (LSB(rid))
4062 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
4063 
4064 		/* Use Disable MSIX Handshake mode for capable adapters */
4065 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
4066 		    (ha->flags.msix_enabled)) {
4067 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
4068 			ha->flags.disable_msix_handshake = 1;
4069 			ql_dbg(ql_dbg_init, vha, 0x00fe,
4070 			    "MSIX Handshake Disable Mode turned on.\n");
4071 		} else {
4072 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
4073 		}
4074 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
4075 
4076 		wrt_reg_dword(&reg->isp25mq.req_q_in, 0);
4077 		wrt_reg_dword(&reg->isp25mq.req_q_out, 0);
4078 		wrt_reg_dword(&reg->isp25mq.rsp_q_in, 0);
4079 		wrt_reg_dword(&reg->isp25mq.rsp_q_out, 0);
4080 	} else {
4081 		wrt_reg_dword(&reg->isp24.req_q_in, 0);
4082 		wrt_reg_dword(&reg->isp24.req_q_out, 0);
4083 		wrt_reg_dword(&reg->isp24.rsp_q_in, 0);
4084 		wrt_reg_dword(&reg->isp24.rsp_q_out, 0);
4085 	}
4086 
4087 	qlt_24xx_config_rings(vha);
4088 
4089 	/* If the user has configured the speed, set it here */
4090 	if (ha->set_data_rate) {
4091 		ql_dbg(ql_dbg_init, vha, 0x00fd,
4092 		    "Speed set by user : %s Gbps \n",
4093 		    qla2x00_get_link_speed_str(ha, ha->set_data_rate));
4094 		icb->firmware_options_3 = cpu_to_le32(ha->set_data_rate << 13);
4095 	}
4096 
4097 	/* PCI posting */
4098 	rd_reg_word(&ioreg->hccr);
4099 }
4100 
4101 /**
4102  * qla2x00_init_rings() - Initializes firmware.
4103  * @vha: HA context
4104  *
4105  * Beginning of request ring has initialization control block already built
4106  * by nvram config routine.
4107  *
4108  * Returns 0 on success.
4109  */
4110 int
4111 qla2x00_init_rings(scsi_qla_host_t *vha)
4112 {
4113 	int	rval;
4114 	unsigned long flags = 0;
4115 	int cnt, que;
4116 	struct qla_hw_data *ha = vha->hw;
4117 	struct req_que *req;
4118 	struct rsp_que *rsp;
4119 	struct mid_init_cb_24xx *mid_init_cb =
4120 	    (struct mid_init_cb_24xx *) ha->init_cb;
4121 
4122 	spin_lock_irqsave(&ha->hardware_lock, flags);
4123 
4124 	/* Clear outstanding commands array. */
4125 	for (que = 0; que < ha->max_req_queues; que++) {
4126 		req = ha->req_q_map[que];
4127 		if (!req || !test_bit(que, ha->req_qid_map))
4128 			continue;
4129 		req->out_ptr = (uint16_t *)(req->ring + req->length);
4130 		*req->out_ptr = 0;
4131 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
4132 			req->outstanding_cmds[cnt] = NULL;
4133 
4134 		req->current_outstanding_cmd = 1;
4135 
4136 		/* Initialize firmware. */
4137 		req->ring_ptr  = req->ring;
4138 		req->ring_index    = 0;
4139 		req->cnt      = req->length;
4140 	}
4141 
4142 	for (que = 0; que < ha->max_rsp_queues; que++) {
4143 		rsp = ha->rsp_q_map[que];
4144 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
4145 			continue;
4146 		rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
4147 		*rsp->in_ptr = 0;
4148 		/* Initialize response queue entries */
4149 		if (IS_QLAFX00(ha))
4150 			qlafx00_init_response_q_entries(rsp);
4151 		else
4152 			qla2x00_init_response_q_entries(rsp);
4153 	}
4154 
4155 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
4156 	ha->tgt.atio_ring_index = 0;
4157 	/* Initialize ATIO queue entries */
4158 	qlt_init_atio_q_entries(vha);
4159 
4160 	ha->isp_ops->config_rings(vha);
4161 
4162 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4163 
4164 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
4165 
4166 	if (IS_QLAFX00(ha)) {
4167 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
4168 		goto next_check;
4169 	}
4170 
4171 	/* Update any ISP specific firmware options before initialization. */
4172 	ha->isp_ops->update_fw_options(vha);
4173 
4174 	if (ha->flags.npiv_supported) {
4175 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
4176 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
4177 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
4178 	}
4179 
4180 	if (IS_FWI2_CAPABLE(ha)) {
4181 		mid_init_cb->options = cpu_to_le16(BIT_1);
4182 		mid_init_cb->init_cb.execution_throttle =
4183 		    cpu_to_le16(ha->cur_fw_xcb_count);
4184 		ha->flags.dport_enabled =
4185 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4186 			 BIT_7) != 0;
4187 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
4188 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
4189 		/* FA-WWPN Status */
4190 		ha->flags.fawwpn_enabled =
4191 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4192 			 BIT_6) != 0;
4193 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
4194 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
4195 	}
4196 
4197 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
4198 next_check:
4199 	if (rval) {
4200 		ql_log(ql_log_fatal, vha, 0x00d2,
4201 		    "Init Firmware **** FAILED ****.\n");
4202 	} else {
4203 		ql_dbg(ql_dbg_init, vha, 0x00d3,
4204 		    "Init Firmware -- success.\n");
4205 		QLA_FW_STARTED(ha);
4206 		vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
4207 	}
4208 
4209 	return (rval);
4210 }
4211 
4212 /**
4213  * qla2x00_fw_ready() - Waits for firmware ready.
4214  * @vha: HA context
4215  *
4216  * Returns 0 on success.
4217  */
4218 static int
4219 qla2x00_fw_ready(scsi_qla_host_t *vha)
4220 {
4221 	int		rval;
4222 	unsigned long	wtime, mtime, cs84xx_time;
4223 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
4224 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
4225 	uint16_t	state[6];
4226 	struct qla_hw_data *ha = vha->hw;
4227 
4228 	if (IS_QLAFX00(vha->hw))
4229 		return qlafx00_fw_ready(vha);
4230 
4231 	rval = QLA_SUCCESS;
4232 
4233 	/* Time to wait for loop down */
4234 	if (IS_P3P_TYPE(ha))
4235 		min_wait = 30;
4236 	else
4237 		min_wait = 20;
4238 
4239 	/*
4240 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
4241 	 * our own processing.
4242 	 */
4243 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
4244 		wait_time = min_wait;
4245 	}
4246 
4247 	/* Min wait time if loop down */
4248 	mtime = jiffies + (min_wait * HZ);
4249 
4250 	/* wait time before firmware ready */
4251 	wtime = jiffies + (wait_time * HZ);
4252 
4253 	/* Wait for ISP to finish LIP */
4254 	if (!vha->flags.init_done)
4255 		ql_log(ql_log_info, vha, 0x801e,
4256 		    "Waiting for LIP to complete.\n");
4257 
4258 	do {
4259 		memset(state, -1, sizeof(state));
4260 		rval = qla2x00_get_firmware_state(vha, state);
4261 		if (rval == QLA_SUCCESS) {
4262 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
4263 				vha->device_flags &= ~DFLG_NO_CABLE;
4264 			}
4265 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
4266 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
4267 				    "fw_state=%x 84xx=%x.\n", state[0],
4268 				    state[2]);
4269 				if ((state[2] & FSTATE_LOGGED_IN) &&
4270 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
4271 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
4272 					    "Sending verify iocb.\n");
4273 
4274 					cs84xx_time = jiffies;
4275 					rval = qla84xx_init_chip(vha);
4276 					if (rval != QLA_SUCCESS) {
4277 						ql_log(ql_log_warn,
4278 						    vha, 0x8007,
4279 						    "Init chip failed.\n");
4280 						break;
4281 					}
4282 
4283 					/* Add time taken to initialize. */
4284 					cs84xx_time = jiffies - cs84xx_time;
4285 					wtime += cs84xx_time;
4286 					mtime += cs84xx_time;
4287 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
4288 					    "Increasing wait time by %ld. "
4289 					    "New time %ld.\n", cs84xx_time,
4290 					    wtime);
4291 				}
4292 			} else if (state[0] == FSTATE_READY) {
4293 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
4294 				    "F/W Ready - OK.\n");
4295 
4296 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
4297 				    &ha->login_timeout, &ha->r_a_tov);
4298 
4299 				rval = QLA_SUCCESS;
4300 				break;
4301 			}
4302 
4303 			rval = QLA_FUNCTION_FAILED;
4304 
4305 			if (atomic_read(&vha->loop_down_timer) &&
4306 			    state[0] != FSTATE_READY) {
4307 				/* Loop down. Timeout on min_wait for states
4308 				 * other than Wait for Login.
4309 				 */
4310 				if (time_after_eq(jiffies, mtime)) {
4311 					ql_log(ql_log_info, vha, 0x8038,
4312 					    "Cable is unplugged...\n");
4313 
4314 					vha->device_flags |= DFLG_NO_CABLE;
4315 					break;
4316 				}
4317 			}
4318 		} else {
4319 			/* Mailbox cmd failed. Timeout on min_wait. */
4320 			if (time_after_eq(jiffies, mtime) ||
4321 				ha->flags.isp82xx_fw_hung)
4322 				break;
4323 		}
4324 
4325 		if (time_after_eq(jiffies, wtime))
4326 			break;
4327 
4328 		/* Delay for a while */
4329 		msleep(500);
4330 	} while (1);
4331 
4332 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
4333 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
4334 	    state[1], state[2], state[3], state[4], state[5], jiffies);
4335 
4336 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
4337 		ql_log(ql_log_warn, vha, 0x803b,
4338 		    "Firmware ready **** FAILED ****.\n");
4339 	}
4340 
4341 	return (rval);
4342 }
4343 
4344 /*
4345 *  qla2x00_configure_hba
4346 *      Setup adapter context.
4347 *
4348 * Input:
4349 *      ha = adapter state pointer.
4350 *
4351 * Returns:
4352 *      0 = success
4353 *
4354 * Context:
4355 *      Kernel context.
4356 */
4357 static int
4358 qla2x00_configure_hba(scsi_qla_host_t *vha)
4359 {
4360 	int       rval;
4361 	uint16_t      loop_id;
4362 	uint16_t      topo;
4363 	uint16_t      sw_cap;
4364 	uint8_t       al_pa;
4365 	uint8_t       area;
4366 	uint8_t       domain;
4367 	char		connect_type[22];
4368 	struct qla_hw_data *ha = vha->hw;
4369 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4370 	port_id_t id;
4371 	unsigned long flags;
4372 
4373 	/* Get host addresses. */
4374 	rval = qla2x00_get_adapter_id(vha,
4375 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4376 	if (rval != QLA_SUCCESS) {
4377 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4378 		    IS_CNA_CAPABLE(ha) ||
4379 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4380 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4381 			    "Loop is in a transition state.\n");
4382 		} else {
4383 			ql_log(ql_log_warn, vha, 0x2009,
4384 			    "Unable to get host loop ID.\n");
4385 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4386 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4387 				ql_log(ql_log_warn, vha, 0x1151,
4388 				    "Doing link init.\n");
4389 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4390 					return rval;
4391 			}
4392 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4393 		}
4394 		return (rval);
4395 	}
4396 
4397 	if (topo == 4) {
4398 		ql_log(ql_log_info, vha, 0x200a,
4399 		    "Cannot get topology - retrying.\n");
4400 		return (QLA_FUNCTION_FAILED);
4401 	}
4402 
4403 	vha->loop_id = loop_id;
4404 
4405 	/* initialize */
4406 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4407 	ha->operating_mode = LOOP;
4408 	ha->switch_cap = 0;
4409 
4410 	switch (topo) {
4411 	case 0:
4412 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4413 		ha->current_topology = ISP_CFG_NL;
4414 		strcpy(connect_type, "(Loop)");
4415 		break;
4416 
4417 	case 1:
4418 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4419 		ha->switch_cap = sw_cap;
4420 		ha->current_topology = ISP_CFG_FL;
4421 		strcpy(connect_type, "(FL_Port)");
4422 		break;
4423 
4424 	case 2:
4425 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4426 		ha->operating_mode = P2P;
4427 		ha->current_topology = ISP_CFG_N;
4428 		strcpy(connect_type, "(N_Port-to-N_Port)");
4429 		break;
4430 
4431 	case 3:
4432 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4433 		ha->switch_cap = sw_cap;
4434 		ha->operating_mode = P2P;
4435 		ha->current_topology = ISP_CFG_F;
4436 		strcpy(connect_type, "(F_Port)");
4437 		break;
4438 
4439 	default:
4440 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4441 		    "HBA in unknown topology %x, using NL.\n", topo);
4442 		ha->current_topology = ISP_CFG_NL;
4443 		strcpy(connect_type, "(Loop)");
4444 		break;
4445 	}
4446 
4447 	/* Save Host port and loop ID. */
4448 	/* byte order - Big Endian */
4449 	id.b.domain = domain;
4450 	id.b.area = area;
4451 	id.b.al_pa = al_pa;
4452 	id.b.rsvd_1 = 0;
4453 	spin_lock_irqsave(&ha->hardware_lock, flags);
4454 	if (!(topo == 2 && ha->flags.n2n_bigger))
4455 		qlt_update_host_map(vha, id);
4456 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4457 
4458 	if (!vha->flags.init_done)
4459 		ql_log(ql_log_info, vha, 0x2010,
4460 		    "Topology - %s, Host Loop address 0x%x.\n",
4461 		    connect_type, vha->loop_id);
4462 
4463 	return(rval);
4464 }
4465 
4466 inline void
4467 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4468 		       const char *def)
4469 {
4470 	char *st, *en;
4471 	uint16_t index;
4472 	uint64_t zero[2] = { 0 };
4473 	struct qla_hw_data *ha = vha->hw;
4474 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4475 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4476 
4477 	if (len > sizeof(zero))
4478 		len = sizeof(zero);
4479 	if (memcmp(model, &zero, len) != 0) {
4480 		memcpy(ha->model_number, model, len);
4481 		st = en = ha->model_number;
4482 		en += len - 1;
4483 		while (en > st) {
4484 			if (*en != 0x20 && *en != 0x00)
4485 				break;
4486 			*en-- = '\0';
4487 		}
4488 
4489 		index = (ha->pdev->subsystem_device & 0xff);
4490 		if (use_tbl &&
4491 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4492 		    index < QLA_MODEL_NAMES)
4493 			strlcpy(ha->model_desc,
4494 			    qla2x00_model_name[index * 2 + 1],
4495 			    sizeof(ha->model_desc));
4496 	} else {
4497 		index = (ha->pdev->subsystem_device & 0xff);
4498 		if (use_tbl &&
4499 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4500 		    index < QLA_MODEL_NAMES) {
4501 			strlcpy(ha->model_number,
4502 				qla2x00_model_name[index * 2],
4503 				sizeof(ha->model_number));
4504 			strlcpy(ha->model_desc,
4505 			    qla2x00_model_name[index * 2 + 1],
4506 			    sizeof(ha->model_desc));
4507 		} else {
4508 			strlcpy(ha->model_number, def,
4509 				sizeof(ha->model_number));
4510 		}
4511 	}
4512 	if (IS_FWI2_CAPABLE(ha))
4513 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4514 		    sizeof(ha->model_desc));
4515 }
4516 
4517 /* On sparc systems, obtain port and node WWN from firmware
4518  * properties.
4519  */
4520 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4521 {
4522 #ifdef CONFIG_SPARC
4523 	struct qla_hw_data *ha = vha->hw;
4524 	struct pci_dev *pdev = ha->pdev;
4525 	struct device_node *dp = pci_device_to_OF_node(pdev);
4526 	const u8 *val;
4527 	int len;
4528 
4529 	val = of_get_property(dp, "port-wwn", &len);
4530 	if (val && len >= WWN_SIZE)
4531 		memcpy(nv->port_name, val, WWN_SIZE);
4532 
4533 	val = of_get_property(dp, "node-wwn", &len);
4534 	if (val && len >= WWN_SIZE)
4535 		memcpy(nv->node_name, val, WWN_SIZE);
4536 #endif
4537 }
4538 
4539 /*
4540 * NVRAM configuration for ISP 2xxx
4541 *
4542 * Input:
4543 *      ha                = adapter block pointer.
4544 *
4545 * Output:
4546 *      initialization control block in response_ring
4547 *      host adapters parameters in host adapter block
4548 *
4549 * Returns:
4550 *      0 = success.
4551 */
4552 int
4553 qla2x00_nvram_config(scsi_qla_host_t *vha)
4554 {
4555 	int             rval;
4556 	uint8_t         chksum = 0;
4557 	uint16_t        cnt;
4558 	uint8_t         *dptr1, *dptr2;
4559 	struct qla_hw_data *ha = vha->hw;
4560 	init_cb_t       *icb = ha->init_cb;
4561 	nvram_t         *nv = ha->nvram;
4562 	uint8_t         *ptr = ha->nvram;
4563 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4564 
4565 	rval = QLA_SUCCESS;
4566 
4567 	/* Determine NVRAM starting address. */
4568 	ha->nvram_size = sizeof(*nv);
4569 	ha->nvram_base = 0;
4570 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4571 		if ((rd_reg_word(&reg->ctrl_status) >> 14) == 1)
4572 			ha->nvram_base = 0x80;
4573 
4574 	/* Get NVRAM data and calculate checksum. */
4575 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4576 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4577 		chksum += *ptr++;
4578 
4579 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4580 	    "Contents of NVRAM.\n");
4581 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4582 	    nv, ha->nvram_size);
4583 
4584 	/* Bad NVRAM data, set defaults parameters. */
4585 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
4586 	    nv->nvram_version < 1) {
4587 		/* Reset NVRAM data. */
4588 		ql_log(ql_log_warn, vha, 0x0064,
4589 		    "Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
4590 		    chksum, nv->id, nv->nvram_version);
4591 		ql_log(ql_log_warn, vha, 0x0065,
4592 		    "Falling back to "
4593 		    "functioning (yet invalid -- WWPN) defaults.\n");
4594 
4595 		/*
4596 		 * Set default initialization control block.
4597 		 */
4598 		memset(nv, 0, ha->nvram_size);
4599 		nv->parameter_block_version = ICB_VERSION;
4600 
4601 		if (IS_QLA23XX(ha)) {
4602 			nv->firmware_options[0] = BIT_2 | BIT_1;
4603 			nv->firmware_options[1] = BIT_7 | BIT_5;
4604 			nv->add_firmware_options[0] = BIT_5;
4605 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4606 			nv->frame_payload_size = 2048;
4607 			nv->special_options[1] = BIT_7;
4608 		} else if (IS_QLA2200(ha)) {
4609 			nv->firmware_options[0] = BIT_2 | BIT_1;
4610 			nv->firmware_options[1] = BIT_7 | BIT_5;
4611 			nv->add_firmware_options[0] = BIT_5;
4612 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4613 			nv->frame_payload_size = 1024;
4614 		} else if (IS_QLA2100(ha)) {
4615 			nv->firmware_options[0] = BIT_3 | BIT_1;
4616 			nv->firmware_options[1] = BIT_5;
4617 			nv->frame_payload_size = 1024;
4618 		}
4619 
4620 		nv->max_iocb_allocation = cpu_to_le16(256);
4621 		nv->execution_throttle = cpu_to_le16(16);
4622 		nv->retry_count = 8;
4623 		nv->retry_delay = 1;
4624 
4625 		nv->port_name[0] = 33;
4626 		nv->port_name[3] = 224;
4627 		nv->port_name[4] = 139;
4628 
4629 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
4630 
4631 		nv->login_timeout = 4;
4632 
4633 		/*
4634 		 * Set default host adapter parameters
4635 		 */
4636 		nv->host_p[1] = BIT_2;
4637 		nv->reset_delay = 5;
4638 		nv->port_down_retry_count = 8;
4639 		nv->max_luns_per_target = cpu_to_le16(8);
4640 		nv->link_down_timeout = 60;
4641 
4642 		rval = 1;
4643 	}
4644 
4645 	/* Reset Initialization control block */
4646 	memset(icb, 0, ha->init_cb_size);
4647 
4648 	/*
4649 	 * Setup driver NVRAM options.
4650 	 */
4651 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
4652 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
4653 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
4654 	nv->firmware_options[1] &= ~BIT_4;
4655 
4656 	if (IS_QLA23XX(ha)) {
4657 		nv->firmware_options[0] |= BIT_2;
4658 		nv->firmware_options[0] &= ~BIT_3;
4659 		nv->special_options[0] &= ~BIT_6;
4660 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
4661 
4662 		if (IS_QLA2300(ha)) {
4663 			if (ha->fb_rev == FPM_2310) {
4664 				strcpy(ha->model_number, "QLA2310");
4665 			} else {
4666 				strcpy(ha->model_number, "QLA2300");
4667 			}
4668 		} else {
4669 			qla2x00_set_model_info(vha, nv->model_number,
4670 			    sizeof(nv->model_number), "QLA23xx");
4671 		}
4672 	} else if (IS_QLA2200(ha)) {
4673 		nv->firmware_options[0] |= BIT_2;
4674 		/*
4675 		 * 'Point-to-point preferred, else loop' is not a safe
4676 		 * connection mode setting.
4677 		 */
4678 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
4679 		    (BIT_5 | BIT_4)) {
4680 			/* Force 'loop preferred, else point-to-point'. */
4681 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
4682 			nv->add_firmware_options[0] |= BIT_5;
4683 		}
4684 		strcpy(ha->model_number, "QLA22xx");
4685 	} else /*if (IS_QLA2100(ha))*/ {
4686 		strcpy(ha->model_number, "QLA2100");
4687 	}
4688 
4689 	/*
4690 	 * Copy over NVRAM RISC parameter block to initialization control block.
4691 	 */
4692 	dptr1 = (uint8_t *)icb;
4693 	dptr2 = (uint8_t *)&nv->parameter_block_version;
4694 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
4695 	while (cnt--)
4696 		*dptr1++ = *dptr2++;
4697 
4698 	/* Copy 2nd half. */
4699 	dptr1 = (uint8_t *)icb->add_firmware_options;
4700 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
4701 	while (cnt--)
4702 		*dptr1++ = *dptr2++;
4703 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
4704 	/* Use alternate WWN? */
4705 	if (nv->host_p[1] & BIT_7) {
4706 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4707 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4708 	}
4709 
4710 	/* Prepare nodename */
4711 	if ((icb->firmware_options[1] & BIT_6) == 0) {
4712 		/*
4713 		 * Firmware will apply the following mask if the nodename was
4714 		 * not provided.
4715 		 */
4716 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4717 		icb->node_name[0] &= 0xF0;
4718 	}
4719 
4720 	/*
4721 	 * Set host adapter parameters.
4722 	 */
4723 
4724 	/*
4725 	 * BIT_7 in the host-parameters section allows for modification to
4726 	 * internal driver logging.
4727 	 */
4728 	if (nv->host_p[0] & BIT_7)
4729 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
4730 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
4731 	/* Always load RISC code on non ISP2[12]00 chips. */
4732 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
4733 		ha->flags.disable_risc_code_load = 0;
4734 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
4735 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
4736 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
4737 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
4738 	ha->flags.disable_serdes = 0;
4739 
4740 	ha->operating_mode =
4741 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
4742 
4743 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
4744 	    sizeof(ha->fw_seriallink_options));
4745 
4746 	/* save HBA serial number */
4747 	ha->serial0 = icb->port_name[5];
4748 	ha->serial1 = icb->port_name[6];
4749 	ha->serial2 = icb->port_name[7];
4750 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4751 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4752 
4753 	icb->execution_throttle = cpu_to_le16(0xFFFF);
4754 
4755 	ha->retry_count = nv->retry_count;
4756 
4757 	/* Set minimum login_timeout to 4 seconds. */
4758 	if (nv->login_timeout != ql2xlogintimeout)
4759 		nv->login_timeout = ql2xlogintimeout;
4760 	if (nv->login_timeout < 4)
4761 		nv->login_timeout = 4;
4762 	ha->login_timeout = nv->login_timeout;
4763 
4764 	/* Set minimum RATOV to 100 tenths of a second. */
4765 	ha->r_a_tov = 100;
4766 
4767 	ha->loop_reset_delay = nv->reset_delay;
4768 
4769 	/* Link Down Timeout = 0:
4770 	 *
4771 	 * 	When Port Down timer expires we will start returning
4772 	 *	I/O's to OS with "DID_NO_CONNECT".
4773 	 *
4774 	 * Link Down Timeout != 0:
4775 	 *
4776 	 *	 The driver waits for the link to come up after link down
4777 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
4778 	 */
4779 	if (nv->link_down_timeout == 0) {
4780 		ha->loop_down_abort_time =
4781 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4782 	} else {
4783 		ha->link_down_timeout =	 nv->link_down_timeout;
4784 		ha->loop_down_abort_time =
4785 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
4786 	}
4787 
4788 	/*
4789 	 * Need enough time to try and get the port back.
4790 	 */
4791 	ha->port_down_retry_count = nv->port_down_retry_count;
4792 	if (qlport_down_retry)
4793 		ha->port_down_retry_count = qlport_down_retry;
4794 	/* Set login_retry_count */
4795 	ha->login_retry_count  = nv->retry_count;
4796 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
4797 	    ha->port_down_retry_count > 3)
4798 		ha->login_retry_count = ha->port_down_retry_count;
4799 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4800 		ha->login_retry_count = ha->port_down_retry_count;
4801 	if (ql2xloginretrycount)
4802 		ha->login_retry_count = ql2xloginretrycount;
4803 
4804 	icb->lun_enables = cpu_to_le16(0);
4805 	icb->command_resource_count = 0;
4806 	icb->immediate_notify_resource_count = 0;
4807 	icb->timeout = cpu_to_le16(0);
4808 
4809 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4810 		/* Enable RIO */
4811 		icb->firmware_options[0] &= ~BIT_3;
4812 		icb->add_firmware_options[0] &=
4813 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4814 		icb->add_firmware_options[0] |= BIT_2;
4815 		icb->response_accumulation_timer = 3;
4816 		icb->interrupt_delay_timer = 5;
4817 
4818 		vha->flags.process_response_queue = 1;
4819 	} else {
4820 		/* Enable ZIO. */
4821 		if (!vha->flags.init_done) {
4822 			ha->zio_mode = icb->add_firmware_options[0] &
4823 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4824 			ha->zio_timer = icb->interrupt_delay_timer ?
4825 			    icb->interrupt_delay_timer : 2;
4826 		}
4827 		icb->add_firmware_options[0] &=
4828 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4829 		vha->flags.process_response_queue = 0;
4830 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
4831 			ha->zio_mode = QLA_ZIO_MODE_6;
4832 
4833 			ql_log(ql_log_info, vha, 0x0068,
4834 			    "ZIO mode %d enabled; timer delay (%d us).\n",
4835 			    ha->zio_mode, ha->zio_timer * 100);
4836 
4837 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
4838 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
4839 			vha->flags.process_response_queue = 1;
4840 		}
4841 	}
4842 
4843 	if (rval) {
4844 		ql_log(ql_log_warn, vha, 0x0069,
4845 		    "NVRAM configuration failed.\n");
4846 	}
4847 	return (rval);
4848 }
4849 
4850 static void
4851 qla2x00_rport_del(void *data)
4852 {
4853 	fc_port_t *fcport = data;
4854 	struct fc_rport *rport;
4855 	unsigned long flags;
4856 
4857 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
4858 	rport = fcport->drport ? fcport->drport : fcport->rport;
4859 	fcport->drport = NULL;
4860 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
4861 	if (rport) {
4862 		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
4863 		    "%s %8phN. rport %p roles %x\n",
4864 		    __func__, fcport->port_name, rport,
4865 		    rport->roles);
4866 
4867 		fc_remote_port_delete(rport);
4868 	}
4869 }
4870 
4871 void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
4872 {
4873 	int old_state;
4874 
4875 	old_state = atomic_read(&fcport->state);
4876 	atomic_set(&fcport->state, state);
4877 
4878 	/* Don't print state transitions during initial allocation of fcport */
4879 	if (old_state && old_state != state) {
4880 		ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
4881 		       "FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
4882 		       fcport->port_name, port_state_str[old_state],
4883 		       port_state_str[state], fcport->d_id.b.domain,
4884 		       fcport->d_id.b.area, fcport->d_id.b.al_pa);
4885 	}
4886 }
4887 
4888 /**
4889  * qla2x00_alloc_fcport() - Allocate a generic fcport.
4890  * @vha: HA context
4891  * @flags: allocation flags
4892  *
4893  * Returns a pointer to the allocated fcport, or NULL, if none available.
4894  */
4895 fc_port_t *
4896 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
4897 {
4898 	fc_port_t *fcport;
4899 
4900 	fcport = kzalloc(sizeof(fc_port_t), flags);
4901 	if (!fcport)
4902 		return NULL;
4903 
4904 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
4905 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
4906 		flags);
4907 	if (!fcport->ct_desc.ct_sns) {
4908 		ql_log(ql_log_warn, vha, 0xd049,
4909 		    "Failed to allocate ct_sns request.\n");
4910 		kfree(fcport);
4911 		return NULL;
4912 	}
4913 
4914 	/* Setup fcport template structure. */
4915 	fcport->vha = vha;
4916 	fcport->port_type = FCT_UNKNOWN;
4917 	fcport->loop_id = FC_NO_LOOP_ID;
4918 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
4919 	fcport->supported_classes = FC_COS_UNSPECIFIED;
4920 	fcport->fp_speed = PORT_SPEED_UNKNOWN;
4921 
4922 	fcport->disc_state = DSC_DELETED;
4923 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
4924 	fcport->deleted = QLA_SESS_DELETED;
4925 	fcport->login_retry = vha->hw->login_retry_count;
4926 	fcport->chip_reset = vha->hw->base_qpair->chip_reset;
4927 	fcport->logout_on_delete = 1;
4928 
4929 	if (!fcport->ct_desc.ct_sns) {
4930 		ql_log(ql_log_warn, vha, 0xd049,
4931 		    "Failed to allocate ct_sns request.\n");
4932 		kfree(fcport);
4933 		return NULL;
4934 	}
4935 
4936 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
4937 	INIT_WORK(&fcport->free_work, qlt_free_session_done);
4938 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
4939 	INIT_LIST_HEAD(&fcport->gnl_entry);
4940 	INIT_LIST_HEAD(&fcport->list);
4941 
4942 	return fcport;
4943 }
4944 
4945 void
4946 qla2x00_free_fcport(fc_port_t *fcport)
4947 {
4948 	if (fcport->ct_desc.ct_sns) {
4949 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
4950 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
4951 			fcport->ct_desc.ct_sns_dma);
4952 
4953 		fcport->ct_desc.ct_sns = NULL;
4954 	}
4955 	list_del(&fcport->list);
4956 	qla2x00_clear_loop_id(fcport);
4957 	kfree(fcport);
4958 }
4959 
4960 /*
4961  * qla2x00_configure_loop
4962  *      Updates Fibre Channel Device Database with what is actually on loop.
4963  *
4964  * Input:
4965  *      ha                = adapter block pointer.
4966  *
4967  * Returns:
4968  *      0 = success.
4969  *      1 = error.
4970  *      2 = database was full and device was not configured.
4971  */
4972 static int
4973 qla2x00_configure_loop(scsi_qla_host_t *vha)
4974 {
4975 	int  rval;
4976 	unsigned long flags, save_flags;
4977 	struct qla_hw_data *ha = vha->hw;
4978 
4979 	rval = QLA_SUCCESS;
4980 
4981 	/* Get Initiator ID */
4982 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
4983 		rval = qla2x00_configure_hba(vha);
4984 		if (rval != QLA_SUCCESS) {
4985 			ql_dbg(ql_dbg_disc, vha, 0x2013,
4986 			    "Unable to configure HBA.\n");
4987 			return (rval);
4988 		}
4989 	}
4990 
4991 	save_flags = flags = vha->dpc_flags;
4992 	ql_dbg(ql_dbg_disc, vha, 0x2014,
4993 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
4994 
4995 	/*
4996 	 * If we have both an RSCN and PORT UPDATE pending then handle them
4997 	 * both at the same time.
4998 	 */
4999 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5000 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
5001 
5002 	qla2x00_get_data_rate(vha);
5003 
5004 	/* Determine what we need to do */
5005 	if ((ha->current_topology == ISP_CFG_FL ||
5006 	    ha->current_topology == ISP_CFG_F) &&
5007 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
5008 
5009 		set_bit(RSCN_UPDATE, &flags);
5010 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
5011 
5012 	} else if (ha->current_topology == ISP_CFG_NL ||
5013 		   ha->current_topology == ISP_CFG_N) {
5014 		clear_bit(RSCN_UPDATE, &flags);
5015 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5016 	} else if (!vha->flags.online ||
5017 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
5018 		set_bit(RSCN_UPDATE, &flags);
5019 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5020 	}
5021 
5022 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
5023 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5024 			ql_dbg(ql_dbg_disc, vha, 0x2015,
5025 			    "Loop resync needed, failing.\n");
5026 			rval = QLA_FUNCTION_FAILED;
5027 		} else
5028 			rval = qla2x00_configure_local_loop(vha);
5029 	}
5030 
5031 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
5032 		if (LOOP_TRANSITION(vha)) {
5033 			ql_dbg(ql_dbg_disc, vha, 0x2099,
5034 			    "Needs RSCN update and loop transition.\n");
5035 			rval = QLA_FUNCTION_FAILED;
5036 		}
5037 		else
5038 			rval = qla2x00_configure_fabric(vha);
5039 	}
5040 
5041 	if (rval == QLA_SUCCESS) {
5042 		if (atomic_read(&vha->loop_down_timer) ||
5043 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5044 			rval = QLA_FUNCTION_FAILED;
5045 		} else {
5046 			atomic_set(&vha->loop_state, LOOP_READY);
5047 			ql_dbg(ql_dbg_disc, vha, 0x2069,
5048 			    "LOOP READY.\n");
5049 			ha->flags.fw_init_done = 1;
5050 
5051 			/*
5052 			 * Process any ATIO queue entries that came in
5053 			 * while we weren't online.
5054 			 */
5055 			if (qla_tgt_mode_enabled(vha) ||
5056 			    qla_dual_mode_enabled(vha)) {
5057 				spin_lock_irqsave(&ha->tgt.atio_lock, flags);
5058 				qlt_24xx_process_atio_queue(vha, 0);
5059 				spin_unlock_irqrestore(&ha->tgt.atio_lock,
5060 				    flags);
5061 			}
5062 		}
5063 	}
5064 
5065 	if (rval) {
5066 		ql_dbg(ql_dbg_disc, vha, 0x206a,
5067 		    "%s *** FAILED ***.\n", __func__);
5068 	} else {
5069 		ql_dbg(ql_dbg_disc, vha, 0x206b,
5070 		    "%s: exiting normally.\n", __func__);
5071 	}
5072 
5073 	/* Restore state if a resync event occurred during processing */
5074 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5075 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
5076 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5077 		if (test_bit(RSCN_UPDATE, &save_flags)) {
5078 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
5079 		}
5080 	}
5081 
5082 	return (rval);
5083 }
5084 
5085 static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha)
5086 {
5087 	struct qla_hw_data *ha = vha->hw;
5088 	unsigned long flags;
5089 	fc_port_t *fcport;
5090 	int rval;
5091 
5092 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) {
5093 		/* borrowing */
5094 		u32 *bp, sz;
5095 
5096 		memset(ha->init_cb, 0, ha->init_cb_size);
5097 		sz = min_t(int, sizeof(struct els_plogi_payload),
5098 			   ha->init_cb_size);
5099 		rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma,
5100 						    ha->init_cb, sz);
5101 		if (rval == QLA_SUCCESS) {
5102 			__be32 *q = &ha->plogi_els_payld.data[0];
5103 
5104 			bp = (uint32_t *)ha->init_cb;
5105 			cpu_to_be32_array(q, bp, sz / 4);
5106 			memcpy(bp, q, sizeof(ha->plogi_els_payld.data));
5107 		} else {
5108 			ql_dbg(ql_dbg_init, vha, 0x00d1,
5109 			       "PLOGI ELS param read fail.\n");
5110 			goto skip_login;
5111 		}
5112 	}
5113 
5114 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5115 		if (fcport->n2n_flag) {
5116 			qla24xx_fcport_handle_login(vha, fcport);
5117 			return QLA_SUCCESS;
5118 		}
5119 	}
5120 
5121 skip_login:
5122 	spin_lock_irqsave(&vha->work_lock, flags);
5123 	vha->scan.scan_retry++;
5124 	spin_unlock_irqrestore(&vha->work_lock, flags);
5125 
5126 	if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5127 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5128 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5129 	}
5130 	return QLA_FUNCTION_FAILED;
5131 }
5132 
5133 /*
5134  * qla2x00_configure_local_loop
5135  *	Updates Fibre Channel Device Database with local loop devices.
5136  *
5137  * Input:
5138  *	ha = adapter block pointer.
5139  *
5140  * Returns:
5141  *	0 = success.
5142  */
5143 static int
5144 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
5145 {
5146 	int		rval, rval2;
5147 	int		found_devs;
5148 	int		found;
5149 	fc_port_t	*fcport, *new_fcport;
5150 	uint16_t	index;
5151 	uint16_t	entries;
5152 	struct gid_list_info *gid;
5153 	uint16_t	loop_id;
5154 	uint8_t		domain, area, al_pa;
5155 	struct qla_hw_data *ha = vha->hw;
5156 	unsigned long flags;
5157 
5158 	/* Inititae N2N login. */
5159 	if (N2N_TOPO(ha))
5160 		return qla2x00_configure_n2n_loop(vha);
5161 
5162 	found_devs = 0;
5163 	new_fcport = NULL;
5164 	entries = MAX_FIBRE_DEVICES_LOOP;
5165 
5166 	/* Get list of logged in devices. */
5167 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
5168 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
5169 	    &entries);
5170 	if (rval != QLA_SUCCESS)
5171 		goto err;
5172 
5173 	ql_dbg(ql_dbg_disc, vha, 0x2011,
5174 	    "Entries in ID list (%d).\n", entries);
5175 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
5176 	    ha->gid_list, entries * sizeof(*ha->gid_list));
5177 
5178 	if (entries == 0) {
5179 		spin_lock_irqsave(&vha->work_lock, flags);
5180 		vha->scan.scan_retry++;
5181 		spin_unlock_irqrestore(&vha->work_lock, flags);
5182 
5183 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5184 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5185 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5186 		}
5187 	} else {
5188 		vha->scan.scan_retry = 0;
5189 	}
5190 
5191 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5192 		fcport->scan_state = QLA_FCPORT_SCAN;
5193 	}
5194 
5195 	/* Allocate temporary fcport for any new fcports discovered. */
5196 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5197 	if (new_fcport == NULL) {
5198 		ql_log(ql_log_warn, vha, 0x2012,
5199 		    "Memory allocation failed for fcport.\n");
5200 		rval = QLA_MEMORY_ALLOC_FAILED;
5201 		goto err;
5202 	}
5203 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5204 
5205 	/* Add devices to port list. */
5206 	gid = ha->gid_list;
5207 	for (index = 0; index < entries; index++) {
5208 		domain = gid->domain;
5209 		area = gid->area;
5210 		al_pa = gid->al_pa;
5211 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
5212 			loop_id = gid->loop_id_2100;
5213 		else
5214 			loop_id = le16_to_cpu(gid->loop_id);
5215 		gid = (void *)gid + ha->gid_list_info_size;
5216 
5217 		/* Bypass reserved domain fields. */
5218 		if ((domain & 0xf0) == 0xf0)
5219 			continue;
5220 
5221 		/* Bypass if not same domain and area of adapter. */
5222 		if (area && domain && ((area != vha->d_id.b.area) ||
5223 		    (domain != vha->d_id.b.domain)) &&
5224 		    (ha->current_topology == ISP_CFG_NL))
5225 			continue;
5226 
5227 
5228 		/* Bypass invalid local loop ID. */
5229 		if (loop_id > LAST_LOCAL_LOOP_ID)
5230 			continue;
5231 
5232 		memset(new_fcport->port_name, 0, WWN_SIZE);
5233 
5234 		/* Fill in member data. */
5235 		new_fcport->d_id.b.domain = domain;
5236 		new_fcport->d_id.b.area = area;
5237 		new_fcport->d_id.b.al_pa = al_pa;
5238 		new_fcport->loop_id = loop_id;
5239 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5240 
5241 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
5242 		if (rval2 != QLA_SUCCESS) {
5243 			ql_dbg(ql_dbg_disc, vha, 0x2097,
5244 			    "Failed to retrieve fcport information "
5245 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
5246 			    rval2, new_fcport->loop_id);
5247 			/* Skip retry if N2N */
5248 			if (ha->current_topology != ISP_CFG_N) {
5249 				ql_dbg(ql_dbg_disc, vha, 0x2105,
5250 				    "Scheduling resync.\n");
5251 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5252 				continue;
5253 			}
5254 		}
5255 
5256 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5257 		/* Check for matching device in port list. */
5258 		found = 0;
5259 		fcport = NULL;
5260 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5261 			if (memcmp(new_fcport->port_name, fcport->port_name,
5262 			    WWN_SIZE))
5263 				continue;
5264 
5265 			fcport->flags &= ~FCF_FABRIC_DEVICE;
5266 			fcport->loop_id = new_fcport->loop_id;
5267 			fcport->port_type = new_fcport->port_type;
5268 			fcport->d_id.b24 = new_fcport->d_id.b24;
5269 			memcpy(fcport->node_name, new_fcport->node_name,
5270 			    WWN_SIZE);
5271 			fcport->scan_state = QLA_FCPORT_FOUND;
5272 			found++;
5273 			break;
5274 		}
5275 
5276 		if (!found) {
5277 			/* New device, add to fcports list. */
5278 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
5279 
5280 			/* Allocate a new replacement fcport. */
5281 			fcport = new_fcport;
5282 
5283 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5284 
5285 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5286 
5287 			if (new_fcport == NULL) {
5288 				ql_log(ql_log_warn, vha, 0xd031,
5289 				    "Failed to allocate memory for fcport.\n");
5290 				rval = QLA_MEMORY_ALLOC_FAILED;
5291 				goto err;
5292 			}
5293 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5294 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5295 		}
5296 
5297 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5298 
5299 		/* Base iIDMA settings on HBA port speed. */
5300 		fcport->fp_speed = ha->link_data_rate;
5301 
5302 		found_devs++;
5303 	}
5304 
5305 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5306 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5307 			break;
5308 
5309 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5310 			if ((qla_dual_mode_enabled(vha) ||
5311 			    qla_ini_mode_enabled(vha)) &&
5312 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5313 				qla2x00_mark_device_lost(vha, fcport,
5314 					ql2xplogiabsentdevice);
5315 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5316 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5317 				    fcport->port_type != FCT_INITIATOR &&
5318 				    fcport->port_type != FCT_BROADCAST) {
5319 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5320 					    "%s %d %8phC post del sess\n",
5321 					    __func__, __LINE__,
5322 					    fcport->port_name);
5323 
5324 					qlt_schedule_sess_for_deletion(fcport);
5325 					continue;
5326 				}
5327 			}
5328 		}
5329 
5330 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5331 			qla24xx_fcport_handle_login(vha, fcport);
5332 	}
5333 
5334 	qla2x00_free_fcport(new_fcport);
5335 
5336 	return rval;
5337 
5338 err:
5339 	ql_dbg(ql_dbg_disc, vha, 0x2098,
5340 	       "Configure local loop error exit: rval=%x.\n", rval);
5341 	return rval;
5342 }
5343 
5344 static void
5345 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5346 {
5347 	int rval;
5348 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5349 	struct qla_hw_data *ha = vha->hw;
5350 
5351 	if (!IS_IIDMA_CAPABLE(ha))
5352 		return;
5353 
5354 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5355 		return;
5356 
5357 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5358 	    fcport->fp_speed > ha->link_data_rate ||
5359 	    !ha->flags.gpsc_supported)
5360 		return;
5361 
5362 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5363 	    mb);
5364 	if (rval != QLA_SUCCESS) {
5365 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5366 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5367 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5368 	} else {
5369 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5370 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5371 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5372 		    fcport->fp_speed, fcport->port_name);
5373 	}
5374 }
5375 
5376 void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5377 {
5378 	qla2x00_iidma_fcport(vha, fcport);
5379 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5380 }
5381 
5382 int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5383 {
5384 	struct qla_work_evt *e;
5385 
5386 	e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
5387 	if (!e)
5388 		return QLA_FUNCTION_FAILED;
5389 
5390 	e->u.fcport.fcport = fcport;
5391 	return qla2x00_post_work(vha, e);
5392 }
5393 
5394 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5395 static void
5396 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5397 {
5398 	struct fc_rport_identifiers rport_ids;
5399 	struct fc_rport *rport;
5400 	unsigned long flags;
5401 
5402 	if (atomic_read(&fcport->state) == FCS_ONLINE)
5403 		return;
5404 
5405 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5406 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5407 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5408 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5409 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5410 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5411 	if (!rport) {
5412 		ql_log(ql_log_warn, vha, 0x2006,
5413 		    "Unable to allocate fc remote port.\n");
5414 		return;
5415 	}
5416 
5417 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5418 	*((fc_port_t **)rport->dd_data) = fcport;
5419 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5420 
5421 	rport->supported_classes = fcport->supported_classes;
5422 
5423 	rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
5424 	if (fcport->port_type == FCT_INITIATOR)
5425 		rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
5426 	if (fcport->port_type == FCT_TARGET)
5427 		rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
5428 	if (fcport->port_type & FCT_NVME_INITIATOR)
5429 		rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
5430 	if (fcport->port_type & FCT_NVME_TARGET)
5431 		rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
5432 	if (fcport->port_type & FCT_NVME_DISCOVERY)
5433 		rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
5434 
5435 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5436 	    "%s %8phN. rport %p is %s mode\n",
5437 	    __func__, fcport->port_name, rport,
5438 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
5439 	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
5440 
5441 	fc_remote_port_rolechg(rport, rport_ids.roles);
5442 }
5443 
5444 /*
5445  * qla2x00_update_fcport
5446  *	Updates device on list.
5447  *
5448  * Input:
5449  *	ha = adapter block pointer.
5450  *	fcport = port structure pointer.
5451  *
5452  * Return:
5453  *	0  - Success
5454  *  BIT_0 - error
5455  *
5456  * Context:
5457  *	Kernel context.
5458  */
5459 void
5460 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5461 {
5462 	if (IS_SW_RESV_ADDR(fcport->d_id))
5463 		return;
5464 
5465 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5466 	    __func__, fcport->port_name);
5467 
5468 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5469 	fcport->login_retry = vha->hw->login_retry_count;
5470 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5471 	fcport->deleted = 0;
5472 	if (vha->hw->current_topology == ISP_CFG_NL)
5473 		fcport->logout_on_delete = 0;
5474 	else
5475 		fcport->logout_on_delete = 1;
5476 	fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
5477 
5478 	switch (vha->hw->current_topology) {
5479 	case ISP_CFG_N:
5480 	case ISP_CFG_NL:
5481 		fcport->keep_nport_handle = 1;
5482 		break;
5483 	default:
5484 		break;
5485 	}
5486 
5487 	qla2x00_iidma_fcport(vha, fcport);
5488 
5489 	if (NVME_TARGET(vha->hw, fcport)) {
5490 		qla_nvme_register_remote(vha, fcport);
5491 		qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5492 		qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5493 		return;
5494 	}
5495 
5496 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5497 
5498 	switch (vha->host->active_mode) {
5499 	case MODE_INITIATOR:
5500 		qla2x00_reg_remote_port(vha, fcport);
5501 		break;
5502 	case MODE_TARGET:
5503 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5504 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5505 			qlt_fc_port_added(vha, fcport);
5506 		break;
5507 	case MODE_DUAL:
5508 		qla2x00_reg_remote_port(vha, fcport);
5509 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5510 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5511 			qlt_fc_port_added(vha, fcport);
5512 		break;
5513 	default:
5514 		break;
5515 	}
5516 
5517 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5518 
5519 	if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
5520 		if (fcport->id_changed) {
5521 			fcport->id_changed = 0;
5522 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5523 			    "%s %d %8phC post gfpnid fcp_cnt %d\n",
5524 			    __func__, __LINE__, fcport->port_name,
5525 			    vha->fcport_count);
5526 			qla24xx_post_gfpnid_work(vha, fcport);
5527 		} else {
5528 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5529 			    "%s %d %8phC post gpsc fcp_cnt %d\n",
5530 			    __func__, __LINE__, fcport->port_name,
5531 			    vha->fcport_count);
5532 			qla24xx_post_gpsc_work(vha, fcport);
5533 		}
5534 	}
5535 
5536 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5537 }
5538 
5539 void qla_register_fcport_fn(struct work_struct *work)
5540 {
5541 	fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
5542 	u32 rscn_gen = fcport->rscn_gen;
5543 	u16 data[2];
5544 
5545 	if (IS_SW_RESV_ADDR(fcport->d_id))
5546 		return;
5547 
5548 	qla2x00_update_fcport(fcport->vha, fcport);
5549 
5550 	if (rscn_gen != fcport->rscn_gen) {
5551 		/* RSCN(s) came in while registration */
5552 		switch (fcport->next_disc_state) {
5553 		case DSC_DELETE_PEND:
5554 			qlt_schedule_sess_for_deletion(fcport);
5555 			break;
5556 		case DSC_ADISC:
5557 			data[0] = data[1] = 0;
5558 			qla2x00_post_async_adisc_work(fcport->vha, fcport,
5559 			    data);
5560 			break;
5561 		default:
5562 			break;
5563 		}
5564 	}
5565 }
5566 
5567 /*
5568  * qla2x00_configure_fabric
5569  *      Setup SNS devices with loop ID's.
5570  *
5571  * Input:
5572  *      ha = adapter block pointer.
5573  *
5574  * Returns:
5575  *      0 = success.
5576  *      BIT_0 = error
5577  */
5578 static int
5579 qla2x00_configure_fabric(scsi_qla_host_t *vha)
5580 {
5581 	int	rval;
5582 	fc_port_t	*fcport;
5583 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5584 	uint16_t	loop_id;
5585 	LIST_HEAD(new_fcports);
5586 	struct qla_hw_data *ha = vha->hw;
5587 	int		discovery_gen;
5588 
5589 	/* If FL port exists, then SNS is present */
5590 	if (IS_FWI2_CAPABLE(ha))
5591 		loop_id = NPH_F_PORT;
5592 	else
5593 		loop_id = SNS_FL_PORT;
5594 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
5595 	if (rval != QLA_SUCCESS) {
5596 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
5597 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
5598 
5599 		vha->device_flags &= ~SWITCH_FOUND;
5600 		return (QLA_SUCCESS);
5601 	}
5602 	vha->device_flags |= SWITCH_FOUND;
5603 
5604 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_port_name, 0);
5605 	if (rval != QLA_SUCCESS)
5606 		ql_dbg(ql_dbg_disc, vha, 0x20ff,
5607 		    "Failed to get Fabric Port Name\n");
5608 
5609 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
5610 		rval = qla2x00_send_change_request(vha, 0x3, 0);
5611 		if (rval != QLA_SUCCESS)
5612 			ql_log(ql_log_warn, vha, 0x121,
5613 			    "Failed to enable receiving of RSCN requests: 0x%x.\n",
5614 			    rval);
5615 	}
5616 
5617 	do {
5618 		qla2x00_mgmt_svr_login(vha);
5619 
5620 		/* Ensure we are logged into the SNS. */
5621 		loop_id = NPH_SNS_LID(ha);
5622 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
5623 		    0xfc, mb, BIT_1|BIT_0);
5624 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5625 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
5626 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
5627 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
5628 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5629 			return rval;
5630 		}
5631 
5632 		/* FDMI support. */
5633 		if (ql2xfdmienable &&
5634 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
5635 			qla2x00_fdmi_register(vha);
5636 
5637 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
5638 			if (qla2x00_rft_id(vha)) {
5639 				/* EMPTY */
5640 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
5641 				    "Register FC-4 TYPE failed.\n");
5642 				if (test_bit(LOOP_RESYNC_NEEDED,
5643 				    &vha->dpc_flags))
5644 					break;
5645 			}
5646 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
5647 				/* EMPTY */
5648 				ql_dbg(ql_dbg_disc, vha, 0x209a,
5649 				    "Register FC-4 Features failed.\n");
5650 				if (test_bit(LOOP_RESYNC_NEEDED,
5651 				    &vha->dpc_flags))
5652 					break;
5653 			}
5654 			if (vha->flags.nvme_enabled) {
5655 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
5656 					ql_dbg(ql_dbg_disc, vha, 0x2049,
5657 					    "Register NVME FC Type Features failed.\n");
5658 				}
5659 			}
5660 			if (qla2x00_rnn_id(vha)) {
5661 				/* EMPTY */
5662 				ql_dbg(ql_dbg_disc, vha, 0x2104,
5663 				    "Register Node Name failed.\n");
5664 				if (test_bit(LOOP_RESYNC_NEEDED,
5665 				    &vha->dpc_flags))
5666 					break;
5667 			} else if (qla2x00_rsnn_nn(vha)) {
5668 				/* EMPTY */
5669 				ql_dbg(ql_dbg_disc, vha, 0x209b,
5670 				    "Register Symbolic Node Name failed.\n");
5671 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5672 					break;
5673 			}
5674 		}
5675 
5676 
5677 		/* Mark the time right before querying FW for connected ports.
5678 		 * This process is long, asynchronous and by the time it's done,
5679 		 * collected information might not be accurate anymore. E.g.
5680 		 * disconnected port might have re-connected and a brand new
5681 		 * session has been created. In this case session's generation
5682 		 * will be newer than discovery_gen. */
5683 		qlt_do_generation_tick(vha, &discovery_gen);
5684 
5685 		if (USE_ASYNC_SCAN(ha)) {
5686 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
5687 			    NULL);
5688 			if (rval)
5689 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5690 		} else  {
5691 			list_for_each_entry(fcport, &vha->vp_fcports, list)
5692 				fcport->scan_state = QLA_FCPORT_SCAN;
5693 
5694 			rval = qla2x00_find_all_fabric_devs(vha);
5695 		}
5696 		if (rval != QLA_SUCCESS)
5697 			break;
5698 	} while (0);
5699 
5700 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
5701 		qla_nvme_register_hba(vha);
5702 
5703 	if (rval)
5704 		ql_dbg(ql_dbg_disc, vha, 0x2068,
5705 		    "Configure fabric error exit rval=%d.\n", rval);
5706 
5707 	return (rval);
5708 }
5709 
5710 /*
5711  * qla2x00_find_all_fabric_devs
5712  *
5713  * Input:
5714  *	ha = adapter block pointer.
5715  *	dev = database device entry pointer.
5716  *
5717  * Returns:
5718  *	0 = success.
5719  *
5720  * Context:
5721  *	Kernel context.
5722  */
5723 static int
5724 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
5725 {
5726 	int		rval;
5727 	uint16_t	loop_id;
5728 	fc_port_t	*fcport, *new_fcport;
5729 	int		found;
5730 
5731 	sw_info_t	*swl;
5732 	int		swl_idx;
5733 	int		first_dev, last_dev;
5734 	port_id_t	wrap = {}, nxt_d_id;
5735 	struct qla_hw_data *ha = vha->hw;
5736 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5737 	unsigned long flags;
5738 
5739 	rval = QLA_SUCCESS;
5740 
5741 	/* Try GID_PT to get device list, else GAN. */
5742 	if (!ha->swl)
5743 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
5744 		    GFP_KERNEL);
5745 	swl = ha->swl;
5746 	if (!swl) {
5747 		/*EMPTY*/
5748 		ql_dbg(ql_dbg_disc, vha, 0x209c,
5749 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
5750 	} else {
5751 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
5752 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
5753 			swl = NULL;
5754 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5755 				return rval;
5756 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
5757 			swl = NULL;
5758 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5759 				return rval;
5760 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
5761 			swl = NULL;
5762 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5763 				return rval;
5764 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
5765 			swl = NULL;
5766 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5767 				return rval;
5768 		}
5769 
5770 		/* If other queries succeeded probe for FC-4 type */
5771 		if (swl) {
5772 			qla2x00_gff_id(vha, swl);
5773 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5774 				return rval;
5775 		}
5776 	}
5777 	swl_idx = 0;
5778 
5779 	/* Allocate temporary fcport for any new fcports discovered. */
5780 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5781 	if (new_fcport == NULL) {
5782 		ql_log(ql_log_warn, vha, 0x209d,
5783 		    "Failed to allocate memory for fcport.\n");
5784 		return (QLA_MEMORY_ALLOC_FAILED);
5785 	}
5786 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5787 	/* Set start port ID scan at adapter ID. */
5788 	first_dev = 1;
5789 	last_dev = 0;
5790 
5791 	/* Starting free loop ID. */
5792 	loop_id = ha->min_external_loopid;
5793 	for (; loop_id <= ha->max_loop_id; loop_id++) {
5794 		if (qla2x00_is_reserved_id(vha, loop_id))
5795 			continue;
5796 
5797 		if (ha->current_topology == ISP_CFG_FL &&
5798 		    (atomic_read(&vha->loop_down_timer) ||
5799 		     LOOP_TRANSITION(vha))) {
5800 			atomic_set(&vha->loop_down_timer, 0);
5801 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5802 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5803 			break;
5804 		}
5805 
5806 		if (swl != NULL) {
5807 			if (last_dev) {
5808 				wrap.b24 = new_fcport->d_id.b24;
5809 			} else {
5810 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
5811 				memcpy(new_fcport->node_name,
5812 				    swl[swl_idx].node_name, WWN_SIZE);
5813 				memcpy(new_fcport->port_name,
5814 				    swl[swl_idx].port_name, WWN_SIZE);
5815 				memcpy(new_fcport->fabric_port_name,
5816 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
5817 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
5818 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
5819 
5820 				new_fcport->nvme_flag = 0;
5821 				if (vha->flags.nvme_enabled &&
5822 				    swl[swl_idx].fc4_type & FS_FC4TYPE_NVME) {
5823 					ql_log(ql_log_info, vha, 0x2131,
5824 					    "FOUND: NVME port %8phC as FC Type 28h\n",
5825 					    new_fcport->port_name);
5826 				}
5827 
5828 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
5829 					last_dev = 1;
5830 				}
5831 				swl_idx++;
5832 			}
5833 		} else {
5834 			/* Send GA_NXT to the switch */
5835 			rval = qla2x00_ga_nxt(vha, new_fcport);
5836 			if (rval != QLA_SUCCESS) {
5837 				ql_log(ql_log_warn, vha, 0x209e,
5838 				    "SNS scan failed -- assuming "
5839 				    "zero-entry result.\n");
5840 				rval = QLA_SUCCESS;
5841 				break;
5842 			}
5843 		}
5844 
5845 		/* If wrap on switch device list, exit. */
5846 		if (first_dev) {
5847 			wrap.b24 = new_fcport->d_id.b24;
5848 			first_dev = 0;
5849 		} else if (new_fcport->d_id.b24 == wrap.b24) {
5850 			ql_dbg(ql_dbg_disc, vha, 0x209f,
5851 			    "Device wrap (%02x%02x%02x).\n",
5852 			    new_fcport->d_id.b.domain,
5853 			    new_fcport->d_id.b.area,
5854 			    new_fcport->d_id.b.al_pa);
5855 			break;
5856 		}
5857 
5858 		/* Bypass if same physical adapter. */
5859 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
5860 			continue;
5861 
5862 		/* Bypass virtual ports of the same host. */
5863 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
5864 			continue;
5865 
5866 		/* Bypass if same domain and area of adapter. */
5867 		if (((new_fcport->d_id.b24 & 0xffff00) ==
5868 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
5869 			ISP_CFG_FL)
5870 			    continue;
5871 
5872 		/* Bypass reserved domain fields. */
5873 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
5874 			continue;
5875 
5876 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
5877 		if (ql2xgffidenable &&
5878 		    (!(new_fcport->fc4_type & FS_FC4TYPE_FCP) &&
5879 		    new_fcport->fc4_type != 0))
5880 			continue;
5881 
5882 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5883 
5884 		/* Locate matching device in database. */
5885 		found = 0;
5886 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5887 			if (memcmp(new_fcport->port_name, fcport->port_name,
5888 			    WWN_SIZE))
5889 				continue;
5890 
5891 			fcport->scan_state = QLA_FCPORT_FOUND;
5892 
5893 			found++;
5894 
5895 			/* Update port state. */
5896 			memcpy(fcport->fabric_port_name,
5897 			    new_fcport->fabric_port_name, WWN_SIZE);
5898 			fcport->fp_speed = new_fcport->fp_speed;
5899 
5900 			/*
5901 			 * If address the same and state FCS_ONLINE
5902 			 * (or in target mode), nothing changed.
5903 			 */
5904 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
5905 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
5906 			     (vha->host->active_mode == MODE_TARGET))) {
5907 				break;
5908 			}
5909 
5910 			/*
5911 			 * If device was not a fabric device before.
5912 			 */
5913 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
5914 				fcport->d_id.b24 = new_fcport->d_id.b24;
5915 				qla2x00_clear_loop_id(fcport);
5916 				fcport->flags |= (FCF_FABRIC_DEVICE |
5917 				    FCF_LOGIN_NEEDED);
5918 				break;
5919 			}
5920 
5921 			/*
5922 			 * Port ID changed or device was marked to be updated;
5923 			 * Log it out if still logged in and mark it for
5924 			 * relogin later.
5925 			 */
5926 			if (qla_tgt_mode_enabled(base_vha)) {
5927 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
5928 					 "port changed FC ID, %8phC"
5929 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
5930 					 fcport->port_name,
5931 					 fcport->d_id.b.domain,
5932 					 fcport->d_id.b.area,
5933 					 fcport->d_id.b.al_pa,
5934 					 fcport->loop_id,
5935 					 new_fcport->d_id.b.domain,
5936 					 new_fcport->d_id.b.area,
5937 					 new_fcport->d_id.b.al_pa);
5938 				fcport->d_id.b24 = new_fcport->d_id.b24;
5939 				break;
5940 			}
5941 
5942 			fcport->d_id.b24 = new_fcport->d_id.b24;
5943 			fcport->flags |= FCF_LOGIN_NEEDED;
5944 			break;
5945 		}
5946 
5947 		if (NVME_TARGET(vha->hw, fcport)) {
5948 			if (fcport->disc_state == DSC_DELETE_PEND) {
5949 				qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
5950 				vha->fcport_count--;
5951 				fcport->login_succ = 0;
5952 			}
5953 		}
5954 
5955 		if (found) {
5956 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5957 			continue;
5958 		}
5959 		/* If device was not in our fcports list, then add it. */
5960 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5961 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
5962 
5963 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5964 
5965 
5966 		/* Allocate a new replacement fcport. */
5967 		nxt_d_id.b24 = new_fcport->d_id.b24;
5968 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5969 		if (new_fcport == NULL) {
5970 			ql_log(ql_log_warn, vha, 0xd032,
5971 			    "Memory allocation failed for fcport.\n");
5972 			return (QLA_MEMORY_ALLOC_FAILED);
5973 		}
5974 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5975 		new_fcport->d_id.b24 = nxt_d_id.b24;
5976 	}
5977 
5978 	qla2x00_free_fcport(new_fcport);
5979 
5980 	/*
5981 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
5982 	 */
5983 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5984 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5985 			break;
5986 
5987 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
5988 			continue;
5989 
5990 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5991 			if ((qla_dual_mode_enabled(vha) ||
5992 			    qla_ini_mode_enabled(vha)) &&
5993 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5994 				qla2x00_mark_device_lost(vha, fcport,
5995 					ql2xplogiabsentdevice);
5996 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5997 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5998 				    fcport->port_type != FCT_INITIATOR &&
5999 				    fcport->port_type != FCT_BROADCAST) {
6000 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
6001 					    "%s %d %8phC post del sess\n",
6002 					    __func__, __LINE__,
6003 					    fcport->port_name);
6004 					qlt_schedule_sess_for_deletion(fcport);
6005 					continue;
6006 				}
6007 			}
6008 		}
6009 
6010 		if (fcport->scan_state == QLA_FCPORT_FOUND &&
6011 		    (fcport->flags & FCF_LOGIN_NEEDED) != 0)
6012 			qla24xx_fcport_handle_login(vha, fcport);
6013 	}
6014 	return (rval);
6015 }
6016 
6017 /* FW does not set aside Loop id for MGMT Server/FFFFFAh */
6018 int
6019 qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
6020 {
6021 	int loop_id = FC_NO_LOOP_ID;
6022 	int lid = NPH_MGMT_SERVER - vha->vp_idx;
6023 	unsigned long flags;
6024 	struct qla_hw_data *ha = vha->hw;
6025 
6026 	if (vha->vp_idx == 0) {
6027 		set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
6028 		return NPH_MGMT_SERVER;
6029 	}
6030 
6031 	/* pick id from high and work down to low */
6032 	spin_lock_irqsave(&ha->vport_slock, flags);
6033 	for (; lid > 0; lid--) {
6034 		if (!test_bit(lid, vha->hw->loop_id_map)) {
6035 			set_bit(lid, vha->hw->loop_id_map);
6036 			loop_id = lid;
6037 			break;
6038 		}
6039 	}
6040 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6041 
6042 	return loop_id;
6043 }
6044 
6045 /*
6046  * qla2x00_fabric_login
6047  *	Issue fabric login command.
6048  *
6049  * Input:
6050  *	ha = adapter block pointer.
6051  *	device = pointer to FC device type structure.
6052  *
6053  * Returns:
6054  *      0 - Login successfully
6055  *      1 - Login failed
6056  *      2 - Initiator device
6057  *      3 - Fatal error
6058  */
6059 int
6060 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
6061     uint16_t *next_loopid)
6062 {
6063 	int	rval;
6064 	int	retry;
6065 	uint16_t tmp_loopid;
6066 	uint16_t mb[MAILBOX_REGISTER_COUNT];
6067 	struct qla_hw_data *ha = vha->hw;
6068 
6069 	retry = 0;
6070 	tmp_loopid = 0;
6071 
6072 	for (;;) {
6073 		ql_dbg(ql_dbg_disc, vha, 0x2000,
6074 		    "Trying Fabric Login w/loop id 0x%04x for port "
6075 		    "%02x%02x%02x.\n",
6076 		    fcport->loop_id, fcport->d_id.b.domain,
6077 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6078 
6079 		/* Login fcport on switch. */
6080 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
6081 		    fcport->d_id.b.domain, fcport->d_id.b.area,
6082 		    fcport->d_id.b.al_pa, mb, BIT_0);
6083 		if (rval != QLA_SUCCESS) {
6084 			return rval;
6085 		}
6086 		if (mb[0] == MBS_PORT_ID_USED) {
6087 			/*
6088 			 * Device has another loop ID.  The firmware team
6089 			 * recommends the driver perform an implicit login with
6090 			 * the specified ID again. The ID we just used is save
6091 			 * here so we return with an ID that can be tried by
6092 			 * the next login.
6093 			 */
6094 			retry++;
6095 			tmp_loopid = fcport->loop_id;
6096 			fcport->loop_id = mb[1];
6097 
6098 			ql_dbg(ql_dbg_disc, vha, 0x2001,
6099 			    "Fabric Login: port in use - next loop "
6100 			    "id=0x%04x, port id= %02x%02x%02x.\n",
6101 			    fcport->loop_id, fcport->d_id.b.domain,
6102 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6103 
6104 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
6105 			/*
6106 			 * Login succeeded.
6107 			 */
6108 			if (retry) {
6109 				/* A retry occurred before. */
6110 				*next_loopid = tmp_loopid;
6111 			} else {
6112 				/*
6113 				 * No retry occurred before. Just increment the
6114 				 * ID value for next login.
6115 				 */
6116 				*next_loopid = (fcport->loop_id + 1);
6117 			}
6118 
6119 			if (mb[1] & BIT_0) {
6120 				fcport->port_type = FCT_INITIATOR;
6121 			} else {
6122 				fcport->port_type = FCT_TARGET;
6123 				if (mb[1] & BIT_1) {
6124 					fcport->flags |= FCF_FCP2_DEVICE;
6125 				}
6126 			}
6127 
6128 			if (mb[10] & BIT_0)
6129 				fcport->supported_classes |= FC_COS_CLASS2;
6130 			if (mb[10] & BIT_1)
6131 				fcport->supported_classes |= FC_COS_CLASS3;
6132 
6133 			if (IS_FWI2_CAPABLE(ha)) {
6134 				if (mb[10] & BIT_7)
6135 					fcport->flags |=
6136 					    FCF_CONF_COMP_SUPPORTED;
6137 			}
6138 
6139 			rval = QLA_SUCCESS;
6140 			break;
6141 		} else if (mb[0] == MBS_LOOP_ID_USED) {
6142 			/*
6143 			 * Loop ID already used, try next loop ID.
6144 			 */
6145 			fcport->loop_id++;
6146 			rval = qla2x00_find_new_loop_id(vha, fcport);
6147 			if (rval != QLA_SUCCESS) {
6148 				/* Ran out of loop IDs to use */
6149 				break;
6150 			}
6151 		} else if (mb[0] == MBS_COMMAND_ERROR) {
6152 			/*
6153 			 * Firmware possibly timed out during login. If NO
6154 			 * retries are left to do then the device is declared
6155 			 * dead.
6156 			 */
6157 			*next_loopid = fcport->loop_id;
6158 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6159 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6160 			    fcport->d_id.b.al_pa);
6161 			qla2x00_mark_device_lost(vha, fcport, 1);
6162 
6163 			rval = 1;
6164 			break;
6165 		} else {
6166 			/*
6167 			 * unrecoverable / not handled error
6168 			 */
6169 			ql_dbg(ql_dbg_disc, vha, 0x2002,
6170 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
6171 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
6172 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
6173 			    fcport->loop_id, jiffies);
6174 
6175 			*next_loopid = fcport->loop_id;
6176 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6177 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6178 			    fcport->d_id.b.al_pa);
6179 			qla2x00_clear_loop_id(fcport);
6180 			fcport->login_retry = 0;
6181 
6182 			rval = 3;
6183 			break;
6184 		}
6185 	}
6186 
6187 	return (rval);
6188 }
6189 
6190 /*
6191  * qla2x00_local_device_login
6192  *	Issue local device login command.
6193  *
6194  * Input:
6195  *	ha = adapter block pointer.
6196  *	loop_id = loop id of device to login to.
6197  *
6198  * Returns (Where's the #define!!!!):
6199  *      0 - Login successfully
6200  *      1 - Login failed
6201  *      3 - Fatal error
6202  */
6203 int
6204 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
6205 {
6206 	int		rval;
6207 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6208 
6209 	memset(mb, 0, sizeof(mb));
6210 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
6211 	if (rval == QLA_SUCCESS) {
6212 		/* Interrogate mailbox registers for any errors */
6213 		if (mb[0] == MBS_COMMAND_ERROR)
6214 			rval = 1;
6215 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
6216 			/* device not in PCB table */
6217 			rval = 3;
6218 	}
6219 
6220 	return (rval);
6221 }
6222 
6223 /*
6224  *  qla2x00_loop_resync
6225  *      Resync with fibre channel devices.
6226  *
6227  * Input:
6228  *      ha = adapter block pointer.
6229  *
6230  * Returns:
6231  *      0 = success
6232  */
6233 int
6234 qla2x00_loop_resync(scsi_qla_host_t *vha)
6235 {
6236 	int rval = QLA_SUCCESS;
6237 	uint32_t wait_time;
6238 
6239 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6240 	if (vha->flags.online) {
6241 		if (!(rval = qla2x00_fw_ready(vha))) {
6242 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
6243 			wait_time = 256;
6244 			do {
6245 				if (!IS_QLAFX00(vha->hw)) {
6246 					/*
6247 					 * Issue a marker after FW becomes
6248 					 * ready.
6249 					 */
6250 					qla2x00_marker(vha, vha->hw->base_qpair,
6251 					    0, 0, MK_SYNC_ALL);
6252 					vha->marker_needed = 0;
6253 				}
6254 
6255 				/* Remap devices on Loop. */
6256 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6257 
6258 				if (IS_QLAFX00(vha->hw))
6259 					qlafx00_configure_devices(vha);
6260 				else
6261 					qla2x00_configure_loop(vha);
6262 
6263 				wait_time--;
6264 			} while (!atomic_read(&vha->loop_down_timer) &&
6265 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6266 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
6267 				&vha->dpc_flags)));
6268 		}
6269 	}
6270 
6271 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6272 		return (QLA_FUNCTION_FAILED);
6273 
6274 	if (rval)
6275 		ql_dbg(ql_dbg_disc, vha, 0x206c,
6276 		    "%s *** FAILED ***.\n", __func__);
6277 
6278 	return (rval);
6279 }
6280 
6281 /*
6282 * qla2x00_perform_loop_resync
6283 * Description: This function will set the appropriate flags and call
6284 *              qla2x00_loop_resync. If successful loop will be resynced
6285 * Arguments : scsi_qla_host_t pointer
6286 * returm    : Success or Failure
6287 */
6288 
6289 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
6290 {
6291 	int32_t rval = 0;
6292 
6293 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
6294 		/*Configure the flags so that resync happens properly*/
6295 		atomic_set(&ha->loop_down_timer, 0);
6296 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
6297 			atomic_set(&ha->loop_state, LOOP_UP);
6298 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
6299 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
6300 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
6301 
6302 			rval = qla2x00_loop_resync(ha);
6303 		} else
6304 			atomic_set(&ha->loop_state, LOOP_DEAD);
6305 
6306 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
6307 	}
6308 
6309 	return rval;
6310 }
6311 
6312 void
6313 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
6314 {
6315 	fc_port_t *fcport;
6316 	struct scsi_qla_host *vha;
6317 	struct qla_hw_data *ha = base_vha->hw;
6318 	unsigned long flags;
6319 
6320 	spin_lock_irqsave(&ha->vport_slock, flags);
6321 	/* Go with deferred removal of rport references. */
6322 	list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
6323 		atomic_inc(&vha->vref_count);
6324 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6325 			if (fcport->drport &&
6326 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
6327 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6328 				qla2x00_rport_del(fcport);
6329 
6330 				spin_lock_irqsave(&ha->vport_slock, flags);
6331 			}
6332 		}
6333 		atomic_dec(&vha->vref_count);
6334 		wake_up(&vha->vref_waitq);
6335 	}
6336 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6337 }
6338 
6339 /* Assumes idc_lock always held on entry */
6340 void
6341 qla83xx_reset_ownership(scsi_qla_host_t *vha)
6342 {
6343 	struct qla_hw_data *ha = vha->hw;
6344 	uint32_t drv_presence, drv_presence_mask;
6345 	uint32_t dev_part_info1, dev_part_info2, class_type;
6346 	uint32_t class_type_mask = 0x3;
6347 	uint16_t fcoe_other_function = 0xffff, i;
6348 
6349 	if (IS_QLA8044(ha)) {
6350 		drv_presence = qla8044_rd_direct(vha,
6351 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
6352 		dev_part_info1 = qla8044_rd_direct(vha,
6353 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
6354 		dev_part_info2 = qla8044_rd_direct(vha,
6355 		    QLA8044_CRB_DEV_PART_INFO2);
6356 	} else {
6357 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6358 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
6359 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
6360 	}
6361 	for (i = 0; i < 8; i++) {
6362 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
6363 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6364 		    (i != ha->portnum)) {
6365 			fcoe_other_function = i;
6366 			break;
6367 		}
6368 	}
6369 	if (fcoe_other_function == 0xffff) {
6370 		for (i = 0; i < 8; i++) {
6371 			class_type = ((dev_part_info2 >> (i * 4)) &
6372 			    class_type_mask);
6373 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6374 			    ((i + 8) != ha->portnum)) {
6375 				fcoe_other_function = i + 8;
6376 				break;
6377 			}
6378 		}
6379 	}
6380 	/*
6381 	 * Prepare drv-presence mask based on fcoe functions present.
6382 	 * However consider only valid physical fcoe function numbers (0-15).
6383 	 */
6384 	drv_presence_mask = ~((1 << (ha->portnum)) |
6385 			((fcoe_other_function == 0xffff) ?
6386 			 0 : (1 << (fcoe_other_function))));
6387 
6388 	/* We are the reset owner iff:
6389 	 *    - No other protocol drivers present.
6390 	 *    - This is the lowest among fcoe functions. */
6391 	if (!(drv_presence & drv_presence_mask) &&
6392 			(ha->portnum < fcoe_other_function)) {
6393 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6394 		    "This host is Reset owner.\n");
6395 		ha->flags.nic_core_reset_owner = 1;
6396 	}
6397 }
6398 
6399 static int
6400 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6401 {
6402 	int rval = QLA_SUCCESS;
6403 	struct qla_hw_data *ha = vha->hw;
6404 	uint32_t drv_ack;
6405 
6406 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6407 	if (rval == QLA_SUCCESS) {
6408 		drv_ack |= (1 << ha->portnum);
6409 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6410 	}
6411 
6412 	return rval;
6413 }
6414 
6415 static int
6416 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6417 {
6418 	int rval = QLA_SUCCESS;
6419 	struct qla_hw_data *ha = vha->hw;
6420 	uint32_t drv_ack;
6421 
6422 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6423 	if (rval == QLA_SUCCESS) {
6424 		drv_ack &= ~(1 << ha->portnum);
6425 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6426 	}
6427 
6428 	return rval;
6429 }
6430 
6431 static const char *
6432 qla83xx_dev_state_to_string(uint32_t dev_state)
6433 {
6434 	switch (dev_state) {
6435 	case QLA8XXX_DEV_COLD:
6436 		return "COLD/RE-INIT";
6437 	case QLA8XXX_DEV_INITIALIZING:
6438 		return "INITIALIZING";
6439 	case QLA8XXX_DEV_READY:
6440 		return "READY";
6441 	case QLA8XXX_DEV_NEED_RESET:
6442 		return "NEED RESET";
6443 	case QLA8XXX_DEV_NEED_QUIESCENT:
6444 		return "NEED QUIESCENT";
6445 	case QLA8XXX_DEV_FAILED:
6446 		return "FAILED";
6447 	case QLA8XXX_DEV_QUIESCENT:
6448 		return "QUIESCENT";
6449 	default:
6450 		return "Unknown";
6451 	}
6452 }
6453 
6454 /* Assumes idc-lock always held on entry */
6455 void
6456 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6457 {
6458 	struct qla_hw_data *ha = vha->hw;
6459 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6460 
6461 	switch (audit_type) {
6462 	case IDC_AUDIT_TIMESTAMP:
6463 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6464 		idc_audit_reg = (ha->portnum) |
6465 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6466 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6467 		break;
6468 
6469 	case IDC_AUDIT_COMPLETION:
6470 		duration_secs = ((jiffies_to_msecs(jiffies) -
6471 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6472 		idc_audit_reg = (ha->portnum) |
6473 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6474 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6475 		break;
6476 
6477 	default:
6478 		ql_log(ql_log_warn, vha, 0xb078,
6479 		    "Invalid audit type specified.\n");
6480 		break;
6481 	}
6482 }
6483 
6484 /* Assumes idc_lock always held on entry */
6485 static int
6486 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6487 {
6488 	struct qla_hw_data *ha = vha->hw;
6489 	uint32_t  idc_control, dev_state;
6490 
6491 	__qla83xx_get_idc_control(vha, &idc_control);
6492 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6493 		ql_log(ql_log_info, vha, 0xb080,
6494 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6495 		    idc_control);
6496 		return QLA_FUNCTION_FAILED;
6497 	}
6498 
6499 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6500 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6501 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6502 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6503 		    QLA8XXX_DEV_NEED_RESET);
6504 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6505 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6506 	} else {
6507 		const char *state = qla83xx_dev_state_to_string(dev_state);
6508 
6509 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
6510 
6511 		/* SV: XXX: Is timeout required here? */
6512 		/* Wait for IDC state change READY -> NEED_RESET */
6513 		while (dev_state == QLA8XXX_DEV_READY) {
6514 			qla83xx_idc_unlock(vha, 0);
6515 			msleep(200);
6516 			qla83xx_idc_lock(vha, 0);
6517 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6518 		}
6519 	}
6520 
6521 	/* Send IDC ack by writing to drv-ack register */
6522 	__qla83xx_set_drv_ack(vha);
6523 
6524 	return QLA_SUCCESS;
6525 }
6526 
6527 int
6528 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6529 {
6530 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6531 }
6532 
6533 int
6534 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6535 {
6536 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6537 }
6538 
6539 static int
6540 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6541 {
6542 	uint32_t drv_presence = 0;
6543 	struct qla_hw_data *ha = vha->hw;
6544 
6545 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6546 	if (drv_presence & (1 << ha->portnum))
6547 		return QLA_SUCCESS;
6548 	else
6549 		return QLA_TEST_FAILED;
6550 }
6551 
6552 int
6553 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6554 {
6555 	int rval = QLA_SUCCESS;
6556 	struct qla_hw_data *ha = vha->hw;
6557 
6558 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6559 	    "Entered  %s().\n", __func__);
6560 
6561 	if (vha->device_flags & DFLG_DEV_FAILED) {
6562 		ql_log(ql_log_warn, vha, 0xb059,
6563 		    "Device in unrecoverable FAILED state.\n");
6564 		return QLA_FUNCTION_FAILED;
6565 	}
6566 
6567 	qla83xx_idc_lock(vha, 0);
6568 
6569 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6570 		ql_log(ql_log_warn, vha, 0xb05a,
6571 		    "Function=0x%x has been removed from IDC participation.\n",
6572 		    ha->portnum);
6573 		rval = QLA_FUNCTION_FAILED;
6574 		goto exit;
6575 	}
6576 
6577 	qla83xx_reset_ownership(vha);
6578 
6579 	rval = qla83xx_initiating_reset(vha);
6580 
6581 	/*
6582 	 * Perform reset if we are the reset-owner,
6583 	 * else wait till IDC state changes to READY/FAILED.
6584 	 */
6585 	if (rval == QLA_SUCCESS) {
6586 		rval = qla83xx_idc_state_handler(vha);
6587 
6588 		if (rval == QLA_SUCCESS)
6589 			ha->flags.nic_core_hung = 0;
6590 		__qla83xx_clear_drv_ack(vha);
6591 	}
6592 
6593 exit:
6594 	qla83xx_idc_unlock(vha, 0);
6595 
6596 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6597 
6598 	return rval;
6599 }
6600 
6601 int
6602 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6603 {
6604 	struct qla_hw_data *ha = vha->hw;
6605 	int rval = QLA_FUNCTION_FAILED;
6606 
6607 	if (!IS_MCTP_CAPABLE(ha)) {
6608 		/* This message can be removed from the final version */
6609 		ql_log(ql_log_info, vha, 0x506d,
6610 		    "This board is not MCTP capable\n");
6611 		return rval;
6612 	}
6613 
6614 	if (!ha->mctp_dump) {
6615 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6616 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6617 
6618 		if (!ha->mctp_dump) {
6619 			ql_log(ql_log_warn, vha, 0x506e,
6620 			    "Failed to allocate memory for mctp dump\n");
6621 			return rval;
6622 		}
6623 	}
6624 
6625 #define MCTP_DUMP_STR_ADDR	0x00000000
6626 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
6627 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
6628 	if (rval != QLA_SUCCESS) {
6629 		ql_log(ql_log_warn, vha, 0x506f,
6630 		    "Failed to capture mctp dump\n");
6631 	} else {
6632 		ql_log(ql_log_info, vha, 0x5070,
6633 		    "Mctp dump capture for host (%ld/%p).\n",
6634 		    vha->host_no, ha->mctp_dump);
6635 		ha->mctp_dumped = 1;
6636 	}
6637 
6638 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
6639 		ha->flags.nic_core_reset_hdlr_active = 1;
6640 		rval = qla83xx_restart_nic_firmware(vha);
6641 		if (rval)
6642 			/* NIC Core reset failed. */
6643 			ql_log(ql_log_warn, vha, 0x5071,
6644 			    "Failed to restart nic firmware\n");
6645 		else
6646 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
6647 			    "Restarted NIC firmware successfully.\n");
6648 		ha->flags.nic_core_reset_hdlr_active = 0;
6649 	}
6650 
6651 	return rval;
6652 
6653 }
6654 
6655 /*
6656 * qla2x00_quiesce_io
6657 * Description: This function will block the new I/Os
6658 *              Its not aborting any I/Os as context
6659 *              is not destroyed during quiescence
6660 * Arguments: scsi_qla_host_t
6661 * return   : void
6662 */
6663 void
6664 qla2x00_quiesce_io(scsi_qla_host_t *vha)
6665 {
6666 	struct qla_hw_data *ha = vha->hw;
6667 	struct scsi_qla_host *vp;
6668 
6669 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
6670 	    "Quiescing I/O - ha=%p.\n", ha);
6671 
6672 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
6673 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6674 		atomic_set(&vha->loop_state, LOOP_DOWN);
6675 		qla2x00_mark_all_devices_lost(vha);
6676 		list_for_each_entry(vp, &ha->vp_list, list)
6677 			qla2x00_mark_all_devices_lost(vp);
6678 	} else {
6679 		if (!atomic_read(&vha->loop_down_timer))
6680 			atomic_set(&vha->loop_down_timer,
6681 					LOOP_DOWN_TIME);
6682 	}
6683 	/* Wait for pending cmds to complete */
6684 	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
6685 		     != QLA_SUCCESS);
6686 }
6687 
6688 void
6689 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
6690 {
6691 	struct qla_hw_data *ha = vha->hw;
6692 	struct scsi_qla_host *vp;
6693 	unsigned long flags;
6694 	fc_port_t *fcport;
6695 	u16 i;
6696 
6697 	/* For ISP82XX, driver waits for completion of the commands.
6698 	 * online flag should be set.
6699 	 */
6700 	if (!(IS_P3P_TYPE(ha)))
6701 		vha->flags.online = 0;
6702 	ha->flags.chip_reset_done = 0;
6703 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6704 	vha->qla_stats.total_isp_aborts++;
6705 
6706 	ql_log(ql_log_info, vha, 0x00af,
6707 	    "Performing ISP error recovery - ha=%p.\n", ha);
6708 
6709 	ha->flags.purge_mbox = 1;
6710 	/* For ISP82XX, reset_chip is just disabling interrupts.
6711 	 * Driver waits for the completion of the commands.
6712 	 * the interrupts need to be enabled.
6713 	 */
6714 	if (!(IS_P3P_TYPE(ha)))
6715 		ha->isp_ops->reset_chip(vha);
6716 
6717 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
6718 	SAVE_TOPO(ha);
6719 	ha->flags.rida_fmt2 = 0;
6720 	ha->flags.n2n_ae = 0;
6721 	ha->flags.lip_ae = 0;
6722 	ha->current_topology = 0;
6723 	QLA_FW_STOPPED(ha);
6724 	ha->flags.fw_init_done = 0;
6725 	ha->chip_reset++;
6726 	ha->base_qpair->chip_reset = ha->chip_reset;
6727 	for (i = 0; i < ha->max_qpairs; i++) {
6728 		if (ha->queue_pair_map[i])
6729 			ha->queue_pair_map[i]->chip_reset =
6730 				ha->base_qpair->chip_reset;
6731 	}
6732 
6733 	/* purge MBox commands */
6734 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
6735 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
6736 		complete(&ha->mbx_intr_comp);
6737 	}
6738 
6739 	i = 0;
6740 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
6741 	    atomic_read(&ha->num_pend_mbx_stage2) ||
6742 	    atomic_read(&ha->num_pend_mbx_stage1)) {
6743 		msleep(20);
6744 		i++;
6745 		if (i > 50)
6746 			break;
6747 	}
6748 	ha->flags.purge_mbox = 0;
6749 
6750 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
6751 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6752 		atomic_set(&vha->loop_state, LOOP_DOWN);
6753 		qla2x00_mark_all_devices_lost(vha);
6754 
6755 		spin_lock_irqsave(&ha->vport_slock, flags);
6756 		list_for_each_entry(vp, &ha->vp_list, list) {
6757 			atomic_inc(&vp->vref_count);
6758 			spin_unlock_irqrestore(&ha->vport_slock, flags);
6759 
6760 			qla2x00_mark_all_devices_lost(vp);
6761 
6762 			spin_lock_irqsave(&ha->vport_slock, flags);
6763 			atomic_dec(&vp->vref_count);
6764 		}
6765 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6766 	} else {
6767 		if (!atomic_read(&vha->loop_down_timer))
6768 			atomic_set(&vha->loop_down_timer,
6769 			    LOOP_DOWN_TIME);
6770 	}
6771 
6772 	/* Clear all async request states across all VPs. */
6773 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6774 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6775 		fcport->scan_state = 0;
6776 	}
6777 	spin_lock_irqsave(&ha->vport_slock, flags);
6778 	list_for_each_entry(vp, &ha->vp_list, list) {
6779 		atomic_inc(&vp->vref_count);
6780 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6781 
6782 		list_for_each_entry(fcport, &vp->vp_fcports, list)
6783 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6784 
6785 		spin_lock_irqsave(&ha->vport_slock, flags);
6786 		atomic_dec(&vp->vref_count);
6787 	}
6788 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6789 
6790 	if (!ha->flags.eeh_busy) {
6791 		/* Make sure for ISP 82XX IO DMA is complete */
6792 		if (IS_P3P_TYPE(ha)) {
6793 			qla82xx_chip_reset_cleanup(vha);
6794 			ql_log(ql_log_info, vha, 0x00b4,
6795 			    "Done chip reset cleanup.\n");
6796 
6797 			/* Done waiting for pending commands.
6798 			 * Reset the online flag.
6799 			 */
6800 			vha->flags.online = 0;
6801 		}
6802 
6803 		/* Requeue all commands in outstanding command list. */
6804 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
6805 	}
6806 	/* memory barrier */
6807 	wmb();
6808 }
6809 
6810 /*
6811 *  qla2x00_abort_isp
6812 *      Resets ISP and aborts all outstanding commands.
6813 *
6814 * Input:
6815 *      ha           = adapter block pointer.
6816 *
6817 * Returns:
6818 *      0 = success
6819 */
6820 int
6821 qla2x00_abort_isp(scsi_qla_host_t *vha)
6822 {
6823 	int rval;
6824 	uint8_t        status = 0;
6825 	struct qla_hw_data *ha = vha->hw;
6826 	struct scsi_qla_host *vp;
6827 	struct req_que *req = ha->req_q_map[0];
6828 	unsigned long flags;
6829 
6830 	if (vha->flags.online) {
6831 		qla2x00_abort_isp_cleanup(vha);
6832 
6833 		if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
6834 			ha->flags.chip_reset_done = 1;
6835 			vha->flags.online = 1;
6836 			status = 0;
6837 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6838 			return status;
6839 		}
6840 
6841 		if (IS_QLA8031(ha)) {
6842 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
6843 			    "Clearing fcoe driver presence.\n");
6844 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
6845 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
6846 				    "Error while clearing DRV-Presence.\n");
6847 		}
6848 
6849 		if (unlikely(pci_channel_offline(ha->pdev) &&
6850 		    ha->flags.pci_channel_io_perm_failure)) {
6851 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6852 			status = 0;
6853 			return status;
6854 		}
6855 
6856 		switch (vha->qlini_mode) {
6857 		case QLA2XXX_INI_MODE_DISABLED:
6858 			if (!qla_tgt_mode_enabled(vha))
6859 				return 0;
6860 			break;
6861 		case QLA2XXX_INI_MODE_DUAL:
6862 			if (!qla_dual_mode_enabled(vha))
6863 				return 0;
6864 			break;
6865 		case QLA2XXX_INI_MODE_ENABLED:
6866 		default:
6867 			break;
6868 		}
6869 
6870 		ha->isp_ops->get_flash_version(vha, req->ring);
6871 
6872 		ha->isp_ops->nvram_config(vha);
6873 
6874 		if (!qla2x00_restart_isp(vha)) {
6875 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6876 
6877 			if (!atomic_read(&vha->loop_down_timer)) {
6878 				/*
6879 				 * Issue marker command only when we are going
6880 				 * to start the I/O .
6881 				 */
6882 				vha->marker_needed = 1;
6883 			}
6884 
6885 			vha->flags.online = 1;
6886 
6887 			ha->isp_ops->enable_intrs(ha);
6888 
6889 			ha->isp_abort_cnt = 0;
6890 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6891 
6892 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
6893 				qla2x00_get_fw_version(vha);
6894 			if (ha->fce) {
6895 				ha->flags.fce_enabled = 1;
6896 				memset(ha->fce, 0,
6897 				    fce_calc_size(ha->fce_bufs));
6898 				rval = qla2x00_enable_fce_trace(vha,
6899 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
6900 				    &ha->fce_bufs);
6901 				if (rval) {
6902 					ql_log(ql_log_warn, vha, 0x8033,
6903 					    "Unable to reinitialize FCE "
6904 					    "(%d).\n", rval);
6905 					ha->flags.fce_enabled = 0;
6906 				}
6907 			}
6908 
6909 			if (ha->eft) {
6910 				memset(ha->eft, 0, EFT_SIZE);
6911 				rval = qla2x00_enable_eft_trace(vha,
6912 				    ha->eft_dma, EFT_NUM_BUFFERS);
6913 				if (rval) {
6914 					ql_log(ql_log_warn, vha, 0x8034,
6915 					    "Unable to reinitialize EFT "
6916 					    "(%d).\n", rval);
6917 				}
6918 			}
6919 		} else {	/* failed the ISP abort */
6920 			vha->flags.online = 1;
6921 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
6922 				if (ha->isp_abort_cnt == 0) {
6923 					ql_log(ql_log_fatal, vha, 0x8035,
6924 					    "ISP error recover failed - "
6925 					    "board disabled.\n");
6926 					/*
6927 					 * The next call disables the board
6928 					 * completely.
6929 					 */
6930 					qla2x00_abort_isp_cleanup(vha);
6931 					vha->flags.online = 0;
6932 					clear_bit(ISP_ABORT_RETRY,
6933 					    &vha->dpc_flags);
6934 					status = 0;
6935 				} else { /* schedule another ISP abort */
6936 					ha->isp_abort_cnt--;
6937 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
6938 					    "ISP abort - retry remaining %d.\n",
6939 					    ha->isp_abort_cnt);
6940 					status = 1;
6941 				}
6942 			} else {
6943 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
6944 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
6945 				    "ISP error recovery - retrying (%d) "
6946 				    "more times.\n", ha->isp_abort_cnt);
6947 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6948 				status = 1;
6949 			}
6950 		}
6951 
6952 	}
6953 
6954 	if (!status) {
6955 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
6956 		qla2x00_configure_hba(vha);
6957 		spin_lock_irqsave(&ha->vport_slock, flags);
6958 		list_for_each_entry(vp, &ha->vp_list, list) {
6959 			if (vp->vp_idx) {
6960 				atomic_inc(&vp->vref_count);
6961 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6962 
6963 				qla2x00_vp_abort_isp(vp);
6964 
6965 				spin_lock_irqsave(&ha->vport_slock, flags);
6966 				atomic_dec(&vp->vref_count);
6967 			}
6968 		}
6969 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6970 
6971 		if (IS_QLA8031(ha)) {
6972 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
6973 			    "Setting back fcoe driver presence.\n");
6974 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
6975 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
6976 				    "Error while setting DRV-Presence.\n");
6977 		}
6978 	} else {
6979 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
6980 		       __func__);
6981 	}
6982 
6983 	return(status);
6984 }
6985 
6986 /*
6987 *  qla2x00_restart_isp
6988 *      restarts the ISP after a reset
6989 *
6990 * Input:
6991 *      ha = adapter block pointer.
6992 *
6993 * Returns:
6994 *      0 = success
6995 */
6996 static int
6997 qla2x00_restart_isp(scsi_qla_host_t *vha)
6998 {
6999 	int status = 0;
7000 	struct qla_hw_data *ha = vha->hw;
7001 
7002 	/* If firmware needs to be loaded */
7003 	if (qla2x00_isp_firmware(vha)) {
7004 		vha->flags.online = 0;
7005 		status = ha->isp_ops->chip_diag(vha);
7006 		if (!status)
7007 			status = qla2x00_setup_chip(vha);
7008 	}
7009 
7010 	if (!status && !(status = qla2x00_init_rings(vha))) {
7011 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7012 		ha->flags.chip_reset_done = 1;
7013 
7014 		/* Initialize the queues in use */
7015 		qla25xx_init_queues(ha);
7016 
7017 		status = qla2x00_fw_ready(vha);
7018 		if (!status) {
7019 			/* Issue a marker after FW becomes ready. */
7020 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
7021 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
7022 		}
7023 
7024 		/* if no cable then assume it's good */
7025 		if ((vha->device_flags & DFLG_NO_CABLE))
7026 			status = 0;
7027 	}
7028 	return (status);
7029 }
7030 
7031 static int
7032 qla25xx_init_queues(struct qla_hw_data *ha)
7033 {
7034 	struct rsp_que *rsp = NULL;
7035 	struct req_que *req = NULL;
7036 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7037 	int ret = -1;
7038 	int i;
7039 
7040 	for (i = 1; i < ha->max_rsp_queues; i++) {
7041 		rsp = ha->rsp_q_map[i];
7042 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
7043 			rsp->options &= ~BIT_0;
7044 			ret = qla25xx_init_rsp_que(base_vha, rsp);
7045 			if (ret != QLA_SUCCESS)
7046 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
7047 				    "%s Rsp que: %d init failed.\n",
7048 				    __func__, rsp->id);
7049 			else
7050 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
7051 				    "%s Rsp que: %d inited.\n",
7052 				    __func__, rsp->id);
7053 		}
7054 	}
7055 	for (i = 1; i < ha->max_req_queues; i++) {
7056 		req = ha->req_q_map[i];
7057 		if (req && test_bit(i, ha->req_qid_map)) {
7058 			/* Clear outstanding commands array. */
7059 			req->options &= ~BIT_0;
7060 			ret = qla25xx_init_req_que(base_vha, req);
7061 			if (ret != QLA_SUCCESS)
7062 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
7063 				    "%s Req que: %d init failed.\n",
7064 				    __func__, req->id);
7065 			else
7066 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
7067 				    "%s Req que: %d inited.\n",
7068 				    __func__, req->id);
7069 		}
7070 	}
7071 	return ret;
7072 }
7073 
7074 /*
7075 * qla2x00_reset_adapter
7076 *      Reset adapter.
7077 *
7078 * Input:
7079 *      ha = adapter block pointer.
7080 */
7081 int
7082 qla2x00_reset_adapter(scsi_qla_host_t *vha)
7083 {
7084 	unsigned long flags = 0;
7085 	struct qla_hw_data *ha = vha->hw;
7086 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7087 
7088 	vha->flags.online = 0;
7089 	ha->isp_ops->disable_intrs(ha);
7090 
7091 	spin_lock_irqsave(&ha->hardware_lock, flags);
7092 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
7093 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7094 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
7095 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7096 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7097 
7098 	return QLA_SUCCESS;
7099 }
7100 
7101 int
7102 qla24xx_reset_adapter(scsi_qla_host_t *vha)
7103 {
7104 	unsigned long flags = 0;
7105 	struct qla_hw_data *ha = vha->hw;
7106 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
7107 	int rval = QLA_SUCCESS;
7108 
7109 	if (IS_P3P_TYPE(ha))
7110 		return rval;
7111 
7112 	vha->flags.online = 0;
7113 	ha->isp_ops->disable_intrs(ha);
7114 
7115 	spin_lock_irqsave(&ha->hardware_lock, flags);
7116 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
7117 	rd_reg_dword(&reg->hccr);
7118 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
7119 	rd_reg_dword(&reg->hccr);
7120 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7121 
7122 	if (IS_NOPOLLING_TYPE(ha))
7123 		ha->isp_ops->enable_intrs(ha);
7124 
7125 	return rval;
7126 }
7127 
7128 /* On sparc systems, obtain port and node WWN from firmware
7129  * properties.
7130  */
7131 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
7132 	struct nvram_24xx *nv)
7133 {
7134 #ifdef CONFIG_SPARC
7135 	struct qla_hw_data *ha = vha->hw;
7136 	struct pci_dev *pdev = ha->pdev;
7137 	struct device_node *dp = pci_device_to_OF_node(pdev);
7138 	const u8 *val;
7139 	int len;
7140 
7141 	val = of_get_property(dp, "port-wwn", &len);
7142 	if (val && len >= WWN_SIZE)
7143 		memcpy(nv->port_name, val, WWN_SIZE);
7144 
7145 	val = of_get_property(dp, "node-wwn", &len);
7146 	if (val && len >= WWN_SIZE)
7147 		memcpy(nv->node_name, val, WWN_SIZE);
7148 #endif
7149 }
7150 
7151 int
7152 qla24xx_nvram_config(scsi_qla_host_t *vha)
7153 {
7154 	int   rval;
7155 	struct init_cb_24xx *icb;
7156 	struct nvram_24xx *nv;
7157 	__le32 *dptr;
7158 	uint8_t  *dptr1, *dptr2;
7159 	uint32_t chksum;
7160 	uint16_t cnt;
7161 	struct qla_hw_data *ha = vha->hw;
7162 
7163 	rval = QLA_SUCCESS;
7164 	icb = (struct init_cb_24xx *)ha->init_cb;
7165 	nv = ha->nvram;
7166 
7167 	/* Determine NVRAM starting address. */
7168 	if (ha->port_no == 0) {
7169 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
7170 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
7171 	} else {
7172 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
7173 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
7174 	}
7175 
7176 	ha->nvram_size = sizeof(*nv);
7177 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7178 
7179 	/* Get VPD data into cache */
7180 	ha->vpd = ha->nvram + VPD_OFFSET;
7181 	ha->isp_ops->read_nvram(vha, ha->vpd,
7182 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
7183 
7184 	/* Get NVRAM data into cache and calculate checksum. */
7185 	dptr = (__force __le32 *)nv;
7186 	ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
7187 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7188 		chksum += le32_to_cpu(*dptr);
7189 
7190 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
7191 	    "Contents of NVRAM\n");
7192 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
7193 	    nv, ha->nvram_size);
7194 
7195 	/* Bad NVRAM data, set defaults parameters. */
7196 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
7197 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
7198 		/* Reset NVRAM data. */
7199 		ql_log(ql_log_warn, vha, 0x006b,
7200 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
7201 		    chksum, nv->id, nv->nvram_version);
7202 		ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
7203 		ql_log(ql_log_warn, vha, 0x006c,
7204 		    "Falling back to functioning (yet invalid -- WWPN) "
7205 		    "defaults.\n");
7206 
7207 		/*
7208 		 * Set default initialization control block.
7209 		 */
7210 		memset(nv, 0, ha->nvram_size);
7211 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7212 		nv->version = cpu_to_le16(ICB_VERSION);
7213 		nv->frame_payload_size = cpu_to_le16(2048);
7214 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7215 		nv->exchange_count = cpu_to_le16(0);
7216 		nv->hard_address = cpu_to_le16(124);
7217 		nv->port_name[0] = 0x21;
7218 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7219 		nv->port_name[2] = 0x00;
7220 		nv->port_name[3] = 0xe0;
7221 		nv->port_name[4] = 0x8b;
7222 		nv->port_name[5] = 0x1c;
7223 		nv->port_name[6] = 0x55;
7224 		nv->port_name[7] = 0x86;
7225 		nv->node_name[0] = 0x20;
7226 		nv->node_name[1] = 0x00;
7227 		nv->node_name[2] = 0x00;
7228 		nv->node_name[3] = 0xe0;
7229 		nv->node_name[4] = 0x8b;
7230 		nv->node_name[5] = 0x1c;
7231 		nv->node_name[6] = 0x55;
7232 		nv->node_name[7] = 0x86;
7233 		qla24xx_nvram_wwn_from_ofw(vha, nv);
7234 		nv->login_retry_count = cpu_to_le16(8);
7235 		nv->interrupt_delay_timer = cpu_to_le16(0);
7236 		nv->login_timeout = cpu_to_le16(0);
7237 		nv->firmware_options_1 =
7238 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7239 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7240 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7241 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7242 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7243 		nv->efi_parameters = cpu_to_le32(0);
7244 		nv->reset_delay = 5;
7245 		nv->max_luns_per_target = cpu_to_le16(128);
7246 		nv->port_down_retry_count = cpu_to_le16(30);
7247 		nv->link_down_timeout = cpu_to_le16(30);
7248 
7249 		rval = 1;
7250 	}
7251 
7252 	if (qla_tgt_mode_enabled(vha)) {
7253 		/* Don't enable full login after initial LIP */
7254 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7255 		/* Don't enable LIP full login for initiator */
7256 		nv->host_p &= cpu_to_le32(~BIT_10);
7257 	}
7258 
7259 	qlt_24xx_config_nvram_stage1(vha, nv);
7260 
7261 	/* Reset Initialization control block */
7262 	memset(icb, 0, ha->init_cb_size);
7263 
7264 	/* Copy 1st segment. */
7265 	dptr1 = (uint8_t *)icb;
7266 	dptr2 = (uint8_t *)&nv->version;
7267 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7268 	while (cnt--)
7269 		*dptr1++ = *dptr2++;
7270 
7271 	icb->login_retry_count = nv->login_retry_count;
7272 	icb->link_down_on_nos = nv->link_down_on_nos;
7273 
7274 	/* Copy 2nd segment. */
7275 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7276 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7277 	cnt = (uint8_t *)&icb->reserved_3 -
7278 	    (uint8_t *)&icb->interrupt_delay_timer;
7279 	while (cnt--)
7280 		*dptr1++ = *dptr2++;
7281 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
7282 	/*
7283 	 * Setup driver NVRAM options.
7284 	 */
7285 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7286 	    "QLA2462");
7287 
7288 	qlt_24xx_config_nvram_stage2(vha, icb);
7289 
7290 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7291 		/* Use alternate WWN? */
7292 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7293 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7294 	}
7295 
7296 	/* Prepare nodename */
7297 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7298 		/*
7299 		 * Firmware will apply the following mask if the nodename was
7300 		 * not provided.
7301 		 */
7302 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7303 		icb->node_name[0] &= 0xF0;
7304 	}
7305 
7306 	/* Set host adapter parameters. */
7307 	ha->flags.disable_risc_code_load = 0;
7308 	ha->flags.enable_lip_reset = 0;
7309 	ha->flags.enable_lip_full_login =
7310 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
7311 	ha->flags.enable_target_reset =
7312 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
7313 	ha->flags.enable_led_scheme = 0;
7314 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
7315 
7316 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7317 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7318 
7319 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
7320 	    sizeof(ha->fw_seriallink_options24));
7321 
7322 	/* save HBA serial number */
7323 	ha->serial0 = icb->port_name[5];
7324 	ha->serial1 = icb->port_name[6];
7325 	ha->serial2 = icb->port_name[7];
7326 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7327 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7328 
7329 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7330 
7331 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7332 
7333 	/* Set minimum login_timeout to 4 seconds. */
7334 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7335 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7336 	if (le16_to_cpu(nv->login_timeout) < 4)
7337 		nv->login_timeout = cpu_to_le16(4);
7338 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7339 
7340 	/* Set minimum RATOV to 100 tenths of a second. */
7341 	ha->r_a_tov = 100;
7342 
7343 	ha->loop_reset_delay = nv->reset_delay;
7344 
7345 	/* Link Down Timeout = 0:
7346 	 *
7347 	 * 	When Port Down timer expires we will start returning
7348 	 *	I/O's to OS with "DID_NO_CONNECT".
7349 	 *
7350 	 * Link Down Timeout != 0:
7351 	 *
7352 	 *	 The driver waits for the link to come up after link down
7353 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7354 	 */
7355 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7356 		ha->loop_down_abort_time =
7357 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7358 	} else {
7359 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7360 		ha->loop_down_abort_time =
7361 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7362 	}
7363 
7364 	/* Need enough time to try and get the port back. */
7365 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7366 	if (qlport_down_retry)
7367 		ha->port_down_retry_count = qlport_down_retry;
7368 
7369 	/* Set login_retry_count */
7370 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7371 	if (ha->port_down_retry_count ==
7372 	    le16_to_cpu(nv->port_down_retry_count) &&
7373 	    ha->port_down_retry_count > 3)
7374 		ha->login_retry_count = ha->port_down_retry_count;
7375 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
7376 		ha->login_retry_count = ha->port_down_retry_count;
7377 	if (ql2xloginretrycount)
7378 		ha->login_retry_count = ql2xloginretrycount;
7379 
7380 	/* N2N: driver will initiate Login instead of FW */
7381 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
7382 
7383 	/* Enable ZIO. */
7384 	if (!vha->flags.init_done) {
7385 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
7386 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
7387 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
7388 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
7389 	}
7390 	icb->firmware_options_2 &= cpu_to_le32(
7391 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
7392 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
7393 		ha->zio_mode = QLA_ZIO_MODE_6;
7394 
7395 		ql_log(ql_log_info, vha, 0x006f,
7396 		    "ZIO mode %d enabled; timer delay (%d us).\n",
7397 		    ha->zio_mode, ha->zio_timer * 100);
7398 
7399 		icb->firmware_options_2 |= cpu_to_le32(
7400 		    (uint32_t)ha->zio_mode);
7401 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
7402 	}
7403 
7404 	if (rval) {
7405 		ql_log(ql_log_warn, vha, 0x0070,
7406 		    "NVRAM configuration failed.\n");
7407 	}
7408 	return (rval);
7409 }
7410 
7411 static void
7412 qla27xx_print_image(struct scsi_qla_host *vha, char *name,
7413     struct qla27xx_image_status *image_status)
7414 {
7415 	ql_dbg(ql_dbg_init, vha, 0x018b,
7416 	    "%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
7417 	    name, "status",
7418 	    image_status->image_status_mask,
7419 	    le16_to_cpu(image_status->generation),
7420 	    image_status->ver_major,
7421 	    image_status->ver_minor,
7422 	    image_status->bitmap,
7423 	    le32_to_cpu(image_status->checksum),
7424 	    le32_to_cpu(image_status->signature));
7425 }
7426 
7427 static bool
7428 qla28xx_check_aux_image_status_signature(
7429     struct qla27xx_image_status *image_status)
7430 {
7431 	ulong signature = le32_to_cpu(image_status->signature);
7432 
7433 	return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
7434 }
7435 
7436 static bool
7437 qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
7438 {
7439 	ulong signature = le32_to_cpu(image_status->signature);
7440 
7441 	return
7442 	    signature != QLA27XX_IMG_STATUS_SIGN &&
7443 	    signature != QLA28XX_IMG_STATUS_SIGN;
7444 }
7445 
7446 static ulong
7447 qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
7448 {
7449 	__le32 *p = (__force __le32 *)image_status;
7450 	uint n = sizeof(*image_status) / sizeof(*p);
7451 	uint32_t sum = 0;
7452 
7453 	for ( ; n--; p++)
7454 		sum += le32_to_cpup(p);
7455 
7456 	return sum;
7457 }
7458 
7459 static inline uint
7460 qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
7461 {
7462 	return aux->bitmap & bitmask ?
7463 	    QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
7464 }
7465 
7466 static void
7467 qla28xx_component_status(
7468     struct active_regions *active_regions, struct qla27xx_image_status *aux)
7469 {
7470 	active_regions->aux.board_config =
7471 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
7472 
7473 	active_regions->aux.vpd_nvram =
7474 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
7475 
7476 	active_regions->aux.npiv_config_0_1 =
7477 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
7478 
7479 	active_regions->aux.npiv_config_2_3 =
7480 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
7481 }
7482 
7483 static int
7484 qla27xx_compare_image_generation(
7485     struct qla27xx_image_status *pri_image_status,
7486     struct qla27xx_image_status *sec_image_status)
7487 {
7488 	/* calculate generation delta as uint16 (this accounts for wrap) */
7489 	int16_t delta =
7490 	    le16_to_cpu(pri_image_status->generation) -
7491 	    le16_to_cpu(sec_image_status->generation);
7492 
7493 	ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
7494 
7495 	return delta;
7496 }
7497 
7498 void
7499 qla28xx_get_aux_images(
7500 	struct scsi_qla_host *vha, struct active_regions *active_regions)
7501 {
7502 	struct qla_hw_data *ha = vha->hw;
7503 	struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
7504 	bool valid_pri_image = false, valid_sec_image = false;
7505 	bool active_pri_image = false, active_sec_image = false;
7506 
7507 	if (!ha->flt_region_aux_img_status_pri) {
7508 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
7509 		goto check_sec_image;
7510 	}
7511 
7512 	qla24xx_read_flash_data(vha, (uint32_t *)&pri_aux_image_status,
7513 	    ha->flt_region_aux_img_status_pri,
7514 	    sizeof(pri_aux_image_status) >> 2);
7515 	qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
7516 
7517 	if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
7518 		ql_dbg(ql_dbg_init, vha, 0x018b,
7519 		    "Primary aux image signature (%#x) not valid\n",
7520 		    le32_to_cpu(pri_aux_image_status.signature));
7521 		goto check_sec_image;
7522 	}
7523 
7524 	if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
7525 		ql_dbg(ql_dbg_init, vha, 0x018c,
7526 		    "Primary aux image checksum failed\n");
7527 		goto check_sec_image;
7528 	}
7529 
7530 	valid_pri_image = true;
7531 
7532 	if (pri_aux_image_status.image_status_mask & 1) {
7533 		ql_dbg(ql_dbg_init, vha, 0x018d,
7534 		    "Primary aux image is active\n");
7535 		active_pri_image = true;
7536 	}
7537 
7538 check_sec_image:
7539 	if (!ha->flt_region_aux_img_status_sec) {
7540 		ql_dbg(ql_dbg_init, vha, 0x018a,
7541 		    "Secondary aux image not addressed\n");
7542 		goto check_valid_image;
7543 	}
7544 
7545 	qla24xx_read_flash_data(vha, (uint32_t *)&sec_aux_image_status,
7546 	    ha->flt_region_aux_img_status_sec,
7547 	    sizeof(sec_aux_image_status) >> 2);
7548 	qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
7549 
7550 	if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
7551 		ql_dbg(ql_dbg_init, vha, 0x018b,
7552 		    "Secondary aux image signature (%#x) not valid\n",
7553 		    le32_to_cpu(sec_aux_image_status.signature));
7554 		goto check_valid_image;
7555 	}
7556 
7557 	if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
7558 		ql_dbg(ql_dbg_init, vha, 0x018c,
7559 		    "Secondary aux image checksum failed\n");
7560 		goto check_valid_image;
7561 	}
7562 
7563 	valid_sec_image = true;
7564 
7565 	if (sec_aux_image_status.image_status_mask & 1) {
7566 		ql_dbg(ql_dbg_init, vha, 0x018d,
7567 		    "Secondary aux image is active\n");
7568 		active_sec_image = true;
7569 	}
7570 
7571 check_valid_image:
7572 	if (valid_pri_image && active_pri_image &&
7573 	    valid_sec_image && active_sec_image) {
7574 		if (qla27xx_compare_image_generation(&pri_aux_image_status,
7575 		    &sec_aux_image_status) >= 0) {
7576 			qla28xx_component_status(active_regions,
7577 			    &pri_aux_image_status);
7578 		} else {
7579 			qla28xx_component_status(active_regions,
7580 			    &sec_aux_image_status);
7581 		}
7582 	} else if (valid_pri_image && active_pri_image) {
7583 		qla28xx_component_status(active_regions, &pri_aux_image_status);
7584 	} else if (valid_sec_image && active_sec_image) {
7585 		qla28xx_component_status(active_regions, &sec_aux_image_status);
7586 	}
7587 
7588 	ql_dbg(ql_dbg_init, vha, 0x018f,
7589 	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u\n",
7590 	    active_regions->aux.board_config,
7591 	    active_regions->aux.vpd_nvram,
7592 	    active_regions->aux.npiv_config_0_1,
7593 	    active_regions->aux.npiv_config_2_3);
7594 }
7595 
7596 void
7597 qla27xx_get_active_image(struct scsi_qla_host *vha,
7598     struct active_regions *active_regions)
7599 {
7600 	struct qla_hw_data *ha = vha->hw;
7601 	struct qla27xx_image_status pri_image_status, sec_image_status;
7602 	bool valid_pri_image = false, valid_sec_image = false;
7603 	bool active_pri_image = false, active_sec_image = false;
7604 
7605 	if (!ha->flt_region_img_status_pri) {
7606 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
7607 		goto check_sec_image;
7608 	}
7609 
7610 	if (qla24xx_read_flash_data(vha, (uint32_t *)&pri_image_status,
7611 	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
7612 	    QLA_SUCCESS) {
7613 		WARN_ON_ONCE(true);
7614 		goto check_sec_image;
7615 	}
7616 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
7617 
7618 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
7619 		ql_dbg(ql_dbg_init, vha, 0x018b,
7620 		    "Primary image signature (%#x) not valid\n",
7621 		    le32_to_cpu(pri_image_status.signature));
7622 		goto check_sec_image;
7623 	}
7624 
7625 	if (qla27xx_image_status_checksum(&pri_image_status)) {
7626 		ql_dbg(ql_dbg_init, vha, 0x018c,
7627 		    "Primary image checksum failed\n");
7628 		goto check_sec_image;
7629 	}
7630 
7631 	valid_pri_image = true;
7632 
7633 	if (pri_image_status.image_status_mask & 1) {
7634 		ql_dbg(ql_dbg_init, vha, 0x018d,
7635 		    "Primary image is active\n");
7636 		active_pri_image = true;
7637 	}
7638 
7639 check_sec_image:
7640 	if (!ha->flt_region_img_status_sec) {
7641 		ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
7642 		goto check_valid_image;
7643 	}
7644 
7645 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
7646 	    ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
7647 	qla27xx_print_image(vha, "Secondary image", &sec_image_status);
7648 
7649 	if (qla27xx_check_image_status_signature(&sec_image_status)) {
7650 		ql_dbg(ql_dbg_init, vha, 0x018b,
7651 		    "Secondary image signature (%#x) not valid\n",
7652 		    le32_to_cpu(sec_image_status.signature));
7653 		goto check_valid_image;
7654 	}
7655 
7656 	if (qla27xx_image_status_checksum(&sec_image_status)) {
7657 		ql_dbg(ql_dbg_init, vha, 0x018c,
7658 		    "Secondary image checksum failed\n");
7659 		goto check_valid_image;
7660 	}
7661 
7662 	valid_sec_image = true;
7663 
7664 	if (sec_image_status.image_status_mask & 1) {
7665 		ql_dbg(ql_dbg_init, vha, 0x018d,
7666 		    "Secondary image is active\n");
7667 		active_sec_image = true;
7668 	}
7669 
7670 check_valid_image:
7671 	if (valid_pri_image && active_pri_image)
7672 		active_regions->global = QLA27XX_PRIMARY_IMAGE;
7673 
7674 	if (valid_sec_image && active_sec_image) {
7675 		if (!active_regions->global ||
7676 		    qla27xx_compare_image_generation(
7677 			&pri_image_status, &sec_image_status) < 0) {
7678 			active_regions->global = QLA27XX_SECONDARY_IMAGE;
7679 		}
7680 	}
7681 
7682 	ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
7683 	    active_regions->global == QLA27XX_DEFAULT_IMAGE ?
7684 		"default (boot/fw)" :
7685 	    active_regions->global == QLA27XX_PRIMARY_IMAGE ?
7686 		"primary" :
7687 	    active_regions->global == QLA27XX_SECONDARY_IMAGE ?
7688 		"secondary" : "invalid",
7689 	    active_regions->global);
7690 }
7691 
7692 bool qla24xx_risc_firmware_invalid(uint32_t *dword)
7693 {
7694 	return
7695 	    !(dword[4] | dword[5] | dword[6] | dword[7]) ||
7696 	    !(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
7697 }
7698 
7699 static int
7700 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
7701     uint32_t faddr)
7702 {
7703 	int rval;
7704 	uint templates, segments, fragment;
7705 	ulong i;
7706 	uint j;
7707 	ulong dlen;
7708 	uint32_t *dcode;
7709 	uint32_t risc_addr, risc_size, risc_attr = 0;
7710 	struct qla_hw_data *ha = vha->hw;
7711 	struct req_que *req = ha->req_q_map[0];
7712 	struct fwdt *fwdt = ha->fwdt;
7713 
7714 	ql_dbg(ql_dbg_init, vha, 0x008b,
7715 	    "FW: Loading firmware from flash (%x).\n", faddr);
7716 
7717 	dcode = (uint32_t *)req->ring;
7718 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
7719 	if (qla24xx_risc_firmware_invalid(dcode)) {
7720 		ql_log(ql_log_fatal, vha, 0x008c,
7721 		    "Unable to verify the integrity of flash firmware "
7722 		    "image.\n");
7723 		ql_log(ql_log_fatal, vha, 0x008d,
7724 		    "Firmware data: %08x %08x %08x %08x.\n",
7725 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7726 
7727 		return QLA_FUNCTION_FAILED;
7728 	}
7729 
7730 	dcode = (uint32_t *)req->ring;
7731 	*srisc_addr = 0;
7732 	segments = FA_RISC_CODE_SEGMENTS;
7733 	for (j = 0; j < segments; j++) {
7734 		ql_dbg(ql_dbg_init, vha, 0x008d,
7735 		    "-> Loading segment %u...\n", j);
7736 		qla24xx_read_flash_data(vha, dcode, faddr, 10);
7737 		risc_addr = be32_to_cpu((__force __be32)dcode[2]);
7738 		risc_size = be32_to_cpu((__force __be32)dcode[3]);
7739 		if (!*srisc_addr) {
7740 			*srisc_addr = risc_addr;
7741 			risc_attr = be32_to_cpu((__force __be32)dcode[9]);
7742 		}
7743 
7744 		dlen = ha->fw_transfer_size >> 2;
7745 		for (fragment = 0; risc_size; fragment++) {
7746 			if (dlen > risc_size)
7747 				dlen = risc_size;
7748 
7749 			ql_dbg(ql_dbg_init, vha, 0x008e,
7750 			    "-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
7751 			    fragment, risc_addr, faddr, dlen);
7752 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
7753 			for (i = 0; i < dlen; i++)
7754 				dcode[i] = swab32(dcode[i]);
7755 
7756 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
7757 			if (rval) {
7758 				ql_log(ql_log_fatal, vha, 0x008f,
7759 				    "-> Failed load firmware fragment %u.\n",
7760 				    fragment);
7761 				return QLA_FUNCTION_FAILED;
7762 			}
7763 
7764 			faddr += dlen;
7765 			risc_addr += dlen;
7766 			risc_size -= dlen;
7767 		}
7768 	}
7769 
7770 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
7771 		return QLA_SUCCESS;
7772 
7773 	templates = (risc_attr & BIT_9) ? 2 : 1;
7774 	ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
7775 	for (j = 0; j < templates; j++, fwdt++) {
7776 		if (fwdt->template)
7777 			vfree(fwdt->template);
7778 		fwdt->template = NULL;
7779 		fwdt->length = 0;
7780 
7781 		dcode = (uint32_t *)req->ring;
7782 		qla24xx_read_flash_data(vha, dcode, faddr, 7);
7783 		risc_size = be32_to_cpu((__force __be32)dcode[2]);
7784 		ql_dbg(ql_dbg_init, vha, 0x0161,
7785 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
7786 		    j, faddr, risc_size);
7787 		if (!risc_size || !~risc_size) {
7788 			ql_dbg(ql_dbg_init, vha, 0x0162,
7789 			    "-> fwdt%u failed to read array\n", j);
7790 			goto failed;
7791 		}
7792 
7793 		/* skip header and ignore checksum */
7794 		faddr += 7;
7795 		risc_size -= 8;
7796 
7797 		ql_dbg(ql_dbg_init, vha, 0x0163,
7798 		    "-> fwdt%u template allocate template %#x words...\n",
7799 		    j, risc_size);
7800 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
7801 		if (!fwdt->template) {
7802 			ql_log(ql_log_warn, vha, 0x0164,
7803 			    "-> fwdt%u failed allocate template.\n", j);
7804 			goto failed;
7805 		}
7806 
7807 		dcode = fwdt->template;
7808 		qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
7809 
7810 		if (!qla27xx_fwdt_template_valid(dcode)) {
7811 			ql_log(ql_log_warn, vha, 0x0165,
7812 			    "-> fwdt%u failed template validate\n", j);
7813 			goto failed;
7814 		}
7815 
7816 		dlen = qla27xx_fwdt_template_size(dcode);
7817 		ql_dbg(ql_dbg_init, vha, 0x0166,
7818 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
7819 		    j, dlen, dlen / sizeof(*dcode));
7820 		if (dlen > risc_size * sizeof(*dcode)) {
7821 			ql_log(ql_log_warn, vha, 0x0167,
7822 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
7823 			    j, dlen - risc_size * sizeof(*dcode));
7824 			goto failed;
7825 		}
7826 
7827 		fwdt->length = dlen;
7828 		ql_dbg(ql_dbg_init, vha, 0x0168,
7829 		    "-> fwdt%u loaded template ok\n", j);
7830 
7831 		faddr += risc_size + 1;
7832 	}
7833 
7834 	return QLA_SUCCESS;
7835 
7836 failed:
7837 	if (fwdt->template)
7838 		vfree(fwdt->template);
7839 	fwdt->template = NULL;
7840 	fwdt->length = 0;
7841 
7842 	return QLA_SUCCESS;
7843 }
7844 
7845 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
7846 
7847 int
7848 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7849 {
7850 	int	rval;
7851 	int	i, fragment;
7852 	uint16_t *wcode;
7853 	__be16	 *fwcode;
7854 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
7855 	struct fw_blob *blob;
7856 	struct qla_hw_data *ha = vha->hw;
7857 	struct req_que *req = ha->req_q_map[0];
7858 
7859 	/* Load firmware blob. */
7860 	blob = qla2x00_request_firmware(vha);
7861 	if (!blob) {
7862 		ql_log(ql_log_info, vha, 0x0083,
7863 		    "Firmware image unavailable.\n");
7864 		ql_log(ql_log_info, vha, 0x0084,
7865 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
7866 		return QLA_FUNCTION_FAILED;
7867 	}
7868 
7869 	rval = QLA_SUCCESS;
7870 
7871 	wcode = (uint16_t *)req->ring;
7872 	*srisc_addr = 0;
7873 	fwcode = (__force __be16 *)blob->fw->data;
7874 	fwclen = 0;
7875 
7876 	/* Validate firmware image by checking version. */
7877 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
7878 		ql_log(ql_log_fatal, vha, 0x0085,
7879 		    "Unable to verify integrity of firmware image (%zd).\n",
7880 		    blob->fw->size);
7881 		goto fail_fw_integrity;
7882 	}
7883 	for (i = 0; i < 4; i++)
7884 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
7885 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
7886 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
7887 		wcode[2] == 0 && wcode[3] == 0)) {
7888 		ql_log(ql_log_fatal, vha, 0x0086,
7889 		    "Unable to verify integrity of firmware image.\n");
7890 		ql_log(ql_log_fatal, vha, 0x0087,
7891 		    "Firmware data: %04x %04x %04x %04x.\n",
7892 		    wcode[0], wcode[1], wcode[2], wcode[3]);
7893 		goto fail_fw_integrity;
7894 	}
7895 
7896 	seg = blob->segs;
7897 	while (*seg && rval == QLA_SUCCESS) {
7898 		risc_addr = *seg;
7899 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
7900 		risc_size = be16_to_cpu(fwcode[3]);
7901 
7902 		/* Validate firmware image size. */
7903 		fwclen += risc_size * sizeof(uint16_t);
7904 		if (blob->fw->size < fwclen) {
7905 			ql_log(ql_log_fatal, vha, 0x0088,
7906 			    "Unable to verify integrity of firmware image "
7907 			    "(%zd).\n", blob->fw->size);
7908 			goto fail_fw_integrity;
7909 		}
7910 
7911 		fragment = 0;
7912 		while (risc_size > 0 && rval == QLA_SUCCESS) {
7913 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
7914 			if (wlen > risc_size)
7915 				wlen = risc_size;
7916 			ql_dbg(ql_dbg_init, vha, 0x0089,
7917 			    "Loading risc segment@ risc addr %x number of "
7918 			    "words 0x%x.\n", risc_addr, wlen);
7919 
7920 			for (i = 0; i < wlen; i++)
7921 				wcode[i] = swab16((__force u32)fwcode[i]);
7922 
7923 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
7924 			    wlen);
7925 			if (rval) {
7926 				ql_log(ql_log_fatal, vha, 0x008a,
7927 				    "Failed to load segment %d of firmware.\n",
7928 				    fragment);
7929 				break;
7930 			}
7931 
7932 			fwcode += wlen;
7933 			risc_addr += wlen;
7934 			risc_size -= wlen;
7935 			fragment++;
7936 		}
7937 
7938 		/* Next segment. */
7939 		seg++;
7940 	}
7941 	return rval;
7942 
7943 fail_fw_integrity:
7944 	return QLA_FUNCTION_FAILED;
7945 }
7946 
7947 static int
7948 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7949 {
7950 	int	rval;
7951 	uint templates, segments, fragment;
7952 	uint32_t *dcode;
7953 	ulong dlen;
7954 	uint32_t risc_addr, risc_size, risc_attr = 0;
7955 	ulong i;
7956 	uint j;
7957 	struct fw_blob *blob;
7958 	__be32 *fwcode;
7959 	struct qla_hw_data *ha = vha->hw;
7960 	struct req_que *req = ha->req_q_map[0];
7961 	struct fwdt *fwdt = ha->fwdt;
7962 
7963 	ql_dbg(ql_dbg_init, vha, 0x0090,
7964 	    "-> FW: Loading via request-firmware.\n");
7965 
7966 	blob = qla2x00_request_firmware(vha);
7967 	if (!blob) {
7968 		ql_log(ql_log_warn, vha, 0x0092,
7969 		    "-> Firmware file not found.\n");
7970 
7971 		return QLA_FUNCTION_FAILED;
7972 	}
7973 
7974 	fwcode = (__force __be32 *)blob->fw->data;
7975 	dcode = (__force uint32_t *)fwcode;
7976 	if (qla24xx_risc_firmware_invalid(dcode)) {
7977 		ql_log(ql_log_fatal, vha, 0x0093,
7978 		    "Unable to verify integrity of firmware image (%zd).\n",
7979 		    blob->fw->size);
7980 		ql_log(ql_log_fatal, vha, 0x0095,
7981 		    "Firmware data: %08x %08x %08x %08x.\n",
7982 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7983 		return QLA_FUNCTION_FAILED;
7984 	}
7985 
7986 	dcode = (uint32_t *)req->ring;
7987 	*srisc_addr = 0;
7988 	segments = FA_RISC_CODE_SEGMENTS;
7989 	for (j = 0; j < segments; j++) {
7990 		ql_dbg(ql_dbg_init, vha, 0x0096,
7991 		    "-> Loading segment %u...\n", j);
7992 		risc_addr = be32_to_cpu(fwcode[2]);
7993 		risc_size = be32_to_cpu(fwcode[3]);
7994 
7995 		if (!*srisc_addr) {
7996 			*srisc_addr = risc_addr;
7997 			risc_attr = be32_to_cpu(fwcode[9]);
7998 		}
7999 
8000 		dlen = ha->fw_transfer_size >> 2;
8001 		for (fragment = 0; risc_size; fragment++) {
8002 			if (dlen > risc_size)
8003 				dlen = risc_size;
8004 
8005 			ql_dbg(ql_dbg_init, vha, 0x0097,
8006 			    "-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
8007 			    fragment, risc_addr,
8008 			    (uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
8009 			    dlen);
8010 
8011 			for (i = 0; i < dlen; i++)
8012 				dcode[i] = swab32((__force u32)fwcode[i]);
8013 
8014 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8015 			if (rval) {
8016 				ql_log(ql_log_fatal, vha, 0x0098,
8017 				    "-> Failed load firmware fragment %u.\n",
8018 				    fragment);
8019 				return QLA_FUNCTION_FAILED;
8020 			}
8021 
8022 			fwcode += dlen;
8023 			risc_addr += dlen;
8024 			risc_size -= dlen;
8025 		}
8026 	}
8027 
8028 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8029 		return QLA_SUCCESS;
8030 
8031 	templates = (risc_attr & BIT_9) ? 2 : 1;
8032 	ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
8033 	for (j = 0; j < templates; j++, fwdt++) {
8034 		if (fwdt->template)
8035 			vfree(fwdt->template);
8036 		fwdt->template = NULL;
8037 		fwdt->length = 0;
8038 
8039 		risc_size = be32_to_cpu(fwcode[2]);
8040 		ql_dbg(ql_dbg_init, vha, 0x0171,
8041 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8042 		    j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
8043 		    risc_size);
8044 		if (!risc_size || !~risc_size) {
8045 			ql_dbg(ql_dbg_init, vha, 0x0172,
8046 			    "-> fwdt%u failed to read array\n", j);
8047 			goto failed;
8048 		}
8049 
8050 		/* skip header and ignore checksum */
8051 		fwcode += 7;
8052 		risc_size -= 8;
8053 
8054 		ql_dbg(ql_dbg_init, vha, 0x0173,
8055 		    "-> fwdt%u template allocate template %#x words...\n",
8056 		    j, risc_size);
8057 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8058 		if (!fwdt->template) {
8059 			ql_log(ql_log_warn, vha, 0x0174,
8060 			    "-> fwdt%u failed allocate template.\n", j);
8061 			goto failed;
8062 		}
8063 
8064 		dcode = fwdt->template;
8065 		for (i = 0; i < risc_size; i++)
8066 			dcode[i] = (__force u32)fwcode[i];
8067 
8068 		if (!qla27xx_fwdt_template_valid(dcode)) {
8069 			ql_log(ql_log_warn, vha, 0x0175,
8070 			    "-> fwdt%u failed template validate\n", j);
8071 			goto failed;
8072 		}
8073 
8074 		dlen = qla27xx_fwdt_template_size(dcode);
8075 		ql_dbg(ql_dbg_init, vha, 0x0176,
8076 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8077 		    j, dlen, dlen / sizeof(*dcode));
8078 		if (dlen > risc_size * sizeof(*dcode)) {
8079 			ql_log(ql_log_warn, vha, 0x0177,
8080 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8081 			    j, dlen - risc_size * sizeof(*dcode));
8082 			goto failed;
8083 		}
8084 
8085 		fwdt->length = dlen;
8086 		ql_dbg(ql_dbg_init, vha, 0x0178,
8087 		    "-> fwdt%u loaded template ok\n", j);
8088 
8089 		fwcode += risc_size + 1;
8090 	}
8091 
8092 	return QLA_SUCCESS;
8093 
8094 failed:
8095 	if (fwdt->template)
8096 		vfree(fwdt->template);
8097 	fwdt->template = NULL;
8098 	fwdt->length = 0;
8099 
8100 	return QLA_SUCCESS;
8101 }
8102 
8103 int
8104 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8105 {
8106 	int rval;
8107 
8108 	if (ql2xfwloadbin == 1)
8109 		return qla81xx_load_risc(vha, srisc_addr);
8110 
8111 	/*
8112 	 * FW Load priority:
8113 	 * 1) Firmware via request-firmware interface (.bin file).
8114 	 * 2) Firmware residing in flash.
8115 	 */
8116 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8117 	if (rval == QLA_SUCCESS)
8118 		return rval;
8119 
8120 	return qla24xx_load_risc_flash(vha, srisc_addr,
8121 	    vha->hw->flt_region_fw);
8122 }
8123 
8124 int
8125 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8126 {
8127 	int rval;
8128 	struct qla_hw_data *ha = vha->hw;
8129 	struct active_regions active_regions = { };
8130 
8131 	if (ql2xfwloadbin == 2)
8132 		goto try_blob_fw;
8133 
8134 	/* FW Load priority:
8135 	 * 1) Firmware residing in flash.
8136 	 * 2) Firmware via request-firmware interface (.bin file).
8137 	 * 3) Golden-Firmware residing in flash -- (limited operation).
8138 	 */
8139 
8140 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8141 		goto try_primary_fw;
8142 
8143 	qla27xx_get_active_image(vha, &active_regions);
8144 
8145 	if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
8146 		goto try_primary_fw;
8147 
8148 	ql_dbg(ql_dbg_init, vha, 0x008b,
8149 	    "Loading secondary firmware image.\n");
8150 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
8151 	if (!rval)
8152 		return rval;
8153 
8154 try_primary_fw:
8155 	ql_dbg(ql_dbg_init, vha, 0x008b,
8156 	    "Loading primary firmware image.\n");
8157 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
8158 	if (!rval)
8159 		return rval;
8160 
8161 try_blob_fw:
8162 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8163 	if (!rval || !ha->flt_region_gold_fw)
8164 		return rval;
8165 
8166 	ql_log(ql_log_info, vha, 0x0099,
8167 	    "Attempting to fallback to golden firmware.\n");
8168 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
8169 	if (rval)
8170 		return rval;
8171 
8172 	ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
8173 	ha->flags.running_gold_fw = 1;
8174 	return rval;
8175 }
8176 
8177 void
8178 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
8179 {
8180 	int ret, retries;
8181 	struct qla_hw_data *ha = vha->hw;
8182 
8183 	if (ha->flags.pci_channel_io_perm_failure)
8184 		return;
8185 	if (!IS_FWI2_CAPABLE(ha))
8186 		return;
8187 	if (!ha->fw_major_version)
8188 		return;
8189 	if (!ha->flags.fw_started)
8190 		return;
8191 
8192 	ret = qla2x00_stop_firmware(vha);
8193 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
8194 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
8195 		ha->isp_ops->reset_chip(vha);
8196 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
8197 			continue;
8198 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
8199 			continue;
8200 		ql_log(ql_log_info, vha, 0x8015,
8201 		    "Attempting retry of stop-firmware command.\n");
8202 		ret = qla2x00_stop_firmware(vha);
8203 	}
8204 
8205 	QLA_FW_STOPPED(ha);
8206 	ha->flags.fw_init_done = 0;
8207 }
8208 
8209 int
8210 qla24xx_configure_vhba(scsi_qla_host_t *vha)
8211 {
8212 	int rval = QLA_SUCCESS;
8213 	int rval2;
8214 	uint16_t mb[MAILBOX_REGISTER_COUNT];
8215 	struct qla_hw_data *ha = vha->hw;
8216 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8217 
8218 	if (!vha->vp_idx)
8219 		return -EINVAL;
8220 
8221 	rval = qla2x00_fw_ready(base_vha);
8222 
8223 	if (rval == QLA_SUCCESS) {
8224 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8225 		qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8226 	}
8227 
8228 	vha->flags.management_server_logged_in = 0;
8229 
8230 	/* Login to SNS first */
8231 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
8232 	    BIT_1);
8233 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
8234 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
8235 			ql_dbg(ql_dbg_init, vha, 0x0120,
8236 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
8237 			    NPH_SNS, rval2);
8238 		else
8239 			ql_dbg(ql_dbg_init, vha, 0x0103,
8240 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
8241 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
8242 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
8243 		return (QLA_FUNCTION_FAILED);
8244 	}
8245 
8246 	atomic_set(&vha->loop_down_timer, 0);
8247 	atomic_set(&vha->loop_state, LOOP_UP);
8248 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8249 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
8250 	rval = qla2x00_loop_resync(base_vha);
8251 
8252 	return rval;
8253 }
8254 
8255 /* 84XX Support **************************************************************/
8256 
8257 static LIST_HEAD(qla_cs84xx_list);
8258 static DEFINE_MUTEX(qla_cs84xx_mutex);
8259 
8260 static struct qla_chip_state_84xx *
8261 qla84xx_get_chip(struct scsi_qla_host *vha)
8262 {
8263 	struct qla_chip_state_84xx *cs84xx;
8264 	struct qla_hw_data *ha = vha->hw;
8265 
8266 	mutex_lock(&qla_cs84xx_mutex);
8267 
8268 	/* Find any shared 84xx chip. */
8269 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
8270 		if (cs84xx->bus == ha->pdev->bus) {
8271 			kref_get(&cs84xx->kref);
8272 			goto done;
8273 		}
8274 	}
8275 
8276 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
8277 	if (!cs84xx)
8278 		goto done;
8279 
8280 	kref_init(&cs84xx->kref);
8281 	spin_lock_init(&cs84xx->access_lock);
8282 	mutex_init(&cs84xx->fw_update_mutex);
8283 	cs84xx->bus = ha->pdev->bus;
8284 
8285 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
8286 done:
8287 	mutex_unlock(&qla_cs84xx_mutex);
8288 	return cs84xx;
8289 }
8290 
8291 static void
8292 __qla84xx_chip_release(struct kref *kref)
8293 {
8294 	struct qla_chip_state_84xx *cs84xx =
8295 	    container_of(kref, struct qla_chip_state_84xx, kref);
8296 
8297 	mutex_lock(&qla_cs84xx_mutex);
8298 	list_del(&cs84xx->list);
8299 	mutex_unlock(&qla_cs84xx_mutex);
8300 	kfree(cs84xx);
8301 }
8302 
8303 void
8304 qla84xx_put_chip(struct scsi_qla_host *vha)
8305 {
8306 	struct qla_hw_data *ha = vha->hw;
8307 
8308 	if (ha->cs84xx)
8309 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
8310 }
8311 
8312 static int
8313 qla84xx_init_chip(scsi_qla_host_t *vha)
8314 {
8315 	int rval;
8316 	uint16_t status[2];
8317 	struct qla_hw_data *ha = vha->hw;
8318 
8319 	mutex_lock(&ha->cs84xx->fw_update_mutex);
8320 
8321 	rval = qla84xx_verify_chip(vha, status);
8322 
8323 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
8324 
8325 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
8326 	    QLA_SUCCESS;
8327 }
8328 
8329 /* 81XX Support **************************************************************/
8330 
8331 int
8332 qla81xx_nvram_config(scsi_qla_host_t *vha)
8333 {
8334 	int   rval;
8335 	struct init_cb_81xx *icb;
8336 	struct nvram_81xx *nv;
8337 	__le32 *dptr;
8338 	uint8_t  *dptr1, *dptr2;
8339 	uint32_t chksum;
8340 	uint16_t cnt;
8341 	struct qla_hw_data *ha = vha->hw;
8342 	uint32_t faddr;
8343 	struct active_regions active_regions = { };
8344 
8345 	rval = QLA_SUCCESS;
8346 	icb = (struct init_cb_81xx *)ha->init_cb;
8347 	nv = ha->nvram;
8348 
8349 	/* Determine NVRAM starting address. */
8350 	ha->nvram_size = sizeof(*nv);
8351 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
8352 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
8353 		ha->vpd_size = FA_VPD_SIZE_82XX;
8354 
8355 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
8356 		qla28xx_get_aux_images(vha, &active_regions);
8357 
8358 	/* Get VPD data into cache */
8359 	ha->vpd = ha->nvram + VPD_OFFSET;
8360 
8361 	faddr = ha->flt_region_vpd;
8362 	if (IS_QLA28XX(ha)) {
8363 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8364 			faddr = ha->flt_region_vpd_sec;
8365 		ql_dbg(ql_dbg_init, vha, 0x0110,
8366 		    "Loading %s nvram image.\n",
8367 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8368 		    "primary" : "secondary");
8369 	}
8370 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
8371 
8372 	/* Get NVRAM data into cache and calculate checksum. */
8373 	faddr = ha->flt_region_nvram;
8374 	if (IS_QLA28XX(ha)) {
8375 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8376 			faddr = ha->flt_region_nvram_sec;
8377 	}
8378 	ql_dbg(ql_dbg_init, vha, 0x0110,
8379 	    "Loading %s nvram image.\n",
8380 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8381 	    "primary" : "secondary");
8382 	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
8383 
8384 	dptr = (__force __le32 *)nv;
8385 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
8386 		chksum += le32_to_cpu(*dptr);
8387 
8388 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
8389 	    "Contents of NVRAM:\n");
8390 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
8391 	    nv, ha->nvram_size);
8392 
8393 	/* Bad NVRAM data, set defaults parameters. */
8394 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
8395 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
8396 		/* Reset NVRAM data. */
8397 		ql_log(ql_log_info, vha, 0x0073,
8398 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
8399 		    chksum, nv->id, le16_to_cpu(nv->nvram_version));
8400 		ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
8401 		ql_log(ql_log_info, vha, 0x0074,
8402 		    "Falling back to functioning (yet invalid -- WWPN) "
8403 		    "defaults.\n");
8404 
8405 		/*
8406 		 * Set default initialization control block.
8407 		 */
8408 		memset(nv, 0, ha->nvram_size);
8409 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
8410 		nv->version = cpu_to_le16(ICB_VERSION);
8411 		nv->frame_payload_size = cpu_to_le16(2048);
8412 		nv->execution_throttle = cpu_to_le16(0xFFFF);
8413 		nv->exchange_count = cpu_to_le16(0);
8414 		nv->port_name[0] = 0x21;
8415 		nv->port_name[1] = 0x00 + ha->port_no + 1;
8416 		nv->port_name[2] = 0x00;
8417 		nv->port_name[3] = 0xe0;
8418 		nv->port_name[4] = 0x8b;
8419 		nv->port_name[5] = 0x1c;
8420 		nv->port_name[6] = 0x55;
8421 		nv->port_name[7] = 0x86;
8422 		nv->node_name[0] = 0x20;
8423 		nv->node_name[1] = 0x00;
8424 		nv->node_name[2] = 0x00;
8425 		nv->node_name[3] = 0xe0;
8426 		nv->node_name[4] = 0x8b;
8427 		nv->node_name[5] = 0x1c;
8428 		nv->node_name[6] = 0x55;
8429 		nv->node_name[7] = 0x86;
8430 		nv->login_retry_count = cpu_to_le16(8);
8431 		nv->interrupt_delay_timer = cpu_to_le16(0);
8432 		nv->login_timeout = cpu_to_le16(0);
8433 		nv->firmware_options_1 =
8434 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
8435 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
8436 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
8437 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
8438 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
8439 		nv->efi_parameters = cpu_to_le32(0);
8440 		nv->reset_delay = 5;
8441 		nv->max_luns_per_target = cpu_to_le16(128);
8442 		nv->port_down_retry_count = cpu_to_le16(30);
8443 		nv->link_down_timeout = cpu_to_le16(180);
8444 		nv->enode_mac[0] = 0x00;
8445 		nv->enode_mac[1] = 0xC0;
8446 		nv->enode_mac[2] = 0xDD;
8447 		nv->enode_mac[3] = 0x04;
8448 		nv->enode_mac[4] = 0x05;
8449 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
8450 
8451 		rval = 1;
8452 	}
8453 
8454 	if (IS_T10_PI_CAPABLE(ha))
8455 		nv->frame_payload_size &= cpu_to_le16(~7);
8456 
8457 	qlt_81xx_config_nvram_stage1(vha, nv);
8458 
8459 	/* Reset Initialization control block */
8460 	memset(icb, 0, ha->init_cb_size);
8461 
8462 	/* Copy 1st segment. */
8463 	dptr1 = (uint8_t *)icb;
8464 	dptr2 = (uint8_t *)&nv->version;
8465 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
8466 	while (cnt--)
8467 		*dptr1++ = *dptr2++;
8468 
8469 	icb->login_retry_count = nv->login_retry_count;
8470 
8471 	/* Copy 2nd segment. */
8472 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
8473 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
8474 	cnt = (uint8_t *)&icb->reserved_5 -
8475 	    (uint8_t *)&icb->interrupt_delay_timer;
8476 	while (cnt--)
8477 		*dptr1++ = *dptr2++;
8478 
8479 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
8480 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
8481 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
8482 		icb->enode_mac[0] = 0x00;
8483 		icb->enode_mac[1] = 0xC0;
8484 		icb->enode_mac[2] = 0xDD;
8485 		icb->enode_mac[3] = 0x04;
8486 		icb->enode_mac[4] = 0x05;
8487 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
8488 	}
8489 
8490 	/* Use extended-initialization control block. */
8491 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
8492 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
8493 	/*
8494 	 * Setup driver NVRAM options.
8495 	 */
8496 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
8497 	    "QLE8XXX");
8498 
8499 	qlt_81xx_config_nvram_stage2(vha, icb);
8500 
8501 	/* Use alternate WWN? */
8502 	if (nv->host_p & cpu_to_le32(BIT_15)) {
8503 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
8504 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
8505 	}
8506 
8507 	/* Prepare nodename */
8508 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
8509 		/*
8510 		 * Firmware will apply the following mask if the nodename was
8511 		 * not provided.
8512 		 */
8513 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
8514 		icb->node_name[0] &= 0xF0;
8515 	}
8516 
8517 	/* Set host adapter parameters. */
8518 	ha->flags.disable_risc_code_load = 0;
8519 	ha->flags.enable_lip_reset = 0;
8520 	ha->flags.enable_lip_full_login =
8521 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
8522 	ha->flags.enable_target_reset =
8523 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
8524 	ha->flags.enable_led_scheme = 0;
8525 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
8526 
8527 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
8528 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
8529 
8530 	/* save HBA serial number */
8531 	ha->serial0 = icb->port_name[5];
8532 	ha->serial1 = icb->port_name[6];
8533 	ha->serial2 = icb->port_name[7];
8534 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
8535 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
8536 
8537 	icb->execution_throttle = cpu_to_le16(0xFFFF);
8538 
8539 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
8540 
8541 	/* Set minimum login_timeout to 4 seconds. */
8542 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
8543 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
8544 	if (le16_to_cpu(nv->login_timeout) < 4)
8545 		nv->login_timeout = cpu_to_le16(4);
8546 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
8547 
8548 	/* Set minimum RATOV to 100 tenths of a second. */
8549 	ha->r_a_tov = 100;
8550 
8551 	ha->loop_reset_delay = nv->reset_delay;
8552 
8553 	/* Link Down Timeout = 0:
8554 	 *
8555 	 *	When Port Down timer expires we will start returning
8556 	 *	I/O's to OS with "DID_NO_CONNECT".
8557 	 *
8558 	 * Link Down Timeout != 0:
8559 	 *
8560 	 *	 The driver waits for the link to come up after link down
8561 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
8562 	 */
8563 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
8564 		ha->loop_down_abort_time =
8565 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
8566 	} else {
8567 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
8568 		ha->loop_down_abort_time =
8569 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
8570 	}
8571 
8572 	/* Need enough time to try and get the port back. */
8573 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
8574 	if (qlport_down_retry)
8575 		ha->port_down_retry_count = qlport_down_retry;
8576 
8577 	/* Set login_retry_count */
8578 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
8579 	if (ha->port_down_retry_count ==
8580 	    le16_to_cpu(nv->port_down_retry_count) &&
8581 	    ha->port_down_retry_count > 3)
8582 		ha->login_retry_count = ha->port_down_retry_count;
8583 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
8584 		ha->login_retry_count = ha->port_down_retry_count;
8585 	if (ql2xloginretrycount)
8586 		ha->login_retry_count = ql2xloginretrycount;
8587 
8588 	/* if not running MSI-X we need handshaking on interrupts */
8589 	if (!vha->hw->flags.msix_enabled &&
8590 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
8591 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
8592 
8593 	/* Enable ZIO. */
8594 	if (!vha->flags.init_done) {
8595 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
8596 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
8597 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
8598 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
8599 	}
8600 	icb->firmware_options_2 &= cpu_to_le32(
8601 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
8602 	vha->flags.process_response_queue = 0;
8603 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
8604 		ha->zio_mode = QLA_ZIO_MODE_6;
8605 
8606 		ql_log(ql_log_info, vha, 0x0075,
8607 		    "ZIO mode %d enabled; timer delay (%d us).\n",
8608 		    ha->zio_mode,
8609 		    ha->zio_timer * 100);
8610 
8611 		icb->firmware_options_2 |= cpu_to_le32(
8612 		    (uint32_t)ha->zio_mode);
8613 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
8614 		vha->flags.process_response_queue = 1;
8615 	}
8616 
8617 	 /* enable RIDA Format2 */
8618 	icb->firmware_options_3 |= cpu_to_le32(BIT_0);
8619 
8620 	/* N2N: driver will initiate Login instead of FW */
8621 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
8622 
8623 	/* Determine NVMe/FCP priority for target ports */
8624 	ha->fc4_type_priority = qla2xxx_get_fc4_priority(vha);
8625 
8626 	if (rval) {
8627 		ql_log(ql_log_warn, vha, 0x0076,
8628 		    "NVRAM configuration failed.\n");
8629 	}
8630 	return (rval);
8631 }
8632 
8633 int
8634 qla82xx_restart_isp(scsi_qla_host_t *vha)
8635 {
8636 	int status, rval;
8637 	struct qla_hw_data *ha = vha->hw;
8638 	struct scsi_qla_host *vp;
8639 	unsigned long flags;
8640 
8641 	status = qla2x00_init_rings(vha);
8642 	if (!status) {
8643 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8644 		ha->flags.chip_reset_done = 1;
8645 
8646 		status = qla2x00_fw_ready(vha);
8647 		if (!status) {
8648 			/* Issue a marker after FW becomes ready. */
8649 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8650 			vha->flags.online = 1;
8651 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8652 		}
8653 
8654 		/* if no cable then assume it's good */
8655 		if ((vha->device_flags & DFLG_NO_CABLE))
8656 			status = 0;
8657 	}
8658 
8659 	if (!status) {
8660 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8661 
8662 		if (!atomic_read(&vha->loop_down_timer)) {
8663 			/*
8664 			 * Issue marker command only when we are going
8665 			 * to start the I/O .
8666 			 */
8667 			vha->marker_needed = 1;
8668 		}
8669 
8670 		ha->isp_ops->enable_intrs(ha);
8671 
8672 		ha->isp_abort_cnt = 0;
8673 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
8674 
8675 		/* Update the firmware version */
8676 		status = qla82xx_check_md_needed(vha);
8677 
8678 		if (ha->fce) {
8679 			ha->flags.fce_enabled = 1;
8680 			memset(ha->fce, 0,
8681 			    fce_calc_size(ha->fce_bufs));
8682 			rval = qla2x00_enable_fce_trace(vha,
8683 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
8684 			    &ha->fce_bufs);
8685 			if (rval) {
8686 				ql_log(ql_log_warn, vha, 0x8001,
8687 				    "Unable to reinitialize FCE (%d).\n",
8688 				    rval);
8689 				ha->flags.fce_enabled = 0;
8690 			}
8691 		}
8692 
8693 		if (ha->eft) {
8694 			memset(ha->eft, 0, EFT_SIZE);
8695 			rval = qla2x00_enable_eft_trace(vha,
8696 			    ha->eft_dma, EFT_NUM_BUFFERS);
8697 			if (rval) {
8698 				ql_log(ql_log_warn, vha, 0x8010,
8699 				    "Unable to reinitialize EFT (%d).\n",
8700 				    rval);
8701 			}
8702 		}
8703 	}
8704 
8705 	if (!status) {
8706 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
8707 		    "qla82xx_restart_isp succeeded.\n");
8708 
8709 		spin_lock_irqsave(&ha->vport_slock, flags);
8710 		list_for_each_entry(vp, &ha->vp_list, list) {
8711 			if (vp->vp_idx) {
8712 				atomic_inc(&vp->vref_count);
8713 				spin_unlock_irqrestore(&ha->vport_slock, flags);
8714 
8715 				qla2x00_vp_abort_isp(vp);
8716 
8717 				spin_lock_irqsave(&ha->vport_slock, flags);
8718 				atomic_dec(&vp->vref_count);
8719 			}
8720 		}
8721 		spin_unlock_irqrestore(&ha->vport_slock, flags);
8722 
8723 	} else {
8724 		ql_log(ql_log_warn, vha, 0x8016,
8725 		    "qla82xx_restart_isp **** FAILED ****.\n");
8726 	}
8727 
8728 	return status;
8729 }
8730 
8731 /*
8732  * qla24xx_get_fcp_prio
8733  *	Gets the fcp cmd priority value for the logged in port.
8734  *	Looks for a match of the port descriptors within
8735  *	each of the fcp prio config entries. If a match is found,
8736  *	the tag (priority) value is returned.
8737  *
8738  * Input:
8739  *	vha = scsi host structure pointer.
8740  *	fcport = port structure pointer.
8741  *
8742  * Return:
8743  *	non-zero (if found)
8744  *	-1 (if not found)
8745  *
8746  * Context:
8747  * 	Kernel context
8748  */
8749 static int
8750 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8751 {
8752 	int i, entries;
8753 	uint8_t pid_match, wwn_match;
8754 	int priority;
8755 	uint32_t pid1, pid2;
8756 	uint64_t wwn1, wwn2;
8757 	struct qla_fcp_prio_entry *pri_entry;
8758 	struct qla_hw_data *ha = vha->hw;
8759 
8760 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
8761 		return -1;
8762 
8763 	priority = -1;
8764 	entries = ha->fcp_prio_cfg->num_entries;
8765 	pri_entry = &ha->fcp_prio_cfg->entry[0];
8766 
8767 	for (i = 0; i < entries; i++) {
8768 		pid_match = wwn_match = 0;
8769 
8770 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
8771 			pri_entry++;
8772 			continue;
8773 		}
8774 
8775 		/* check source pid for a match */
8776 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
8777 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
8778 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
8779 			if (pid1 == INVALID_PORT_ID)
8780 				pid_match++;
8781 			else if (pid1 == pid2)
8782 				pid_match++;
8783 		}
8784 
8785 		/* check destination pid for a match */
8786 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
8787 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
8788 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
8789 			if (pid1 == INVALID_PORT_ID)
8790 				pid_match++;
8791 			else if (pid1 == pid2)
8792 				pid_match++;
8793 		}
8794 
8795 		/* check source WWN for a match */
8796 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
8797 			wwn1 = wwn_to_u64(vha->port_name);
8798 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
8799 			if (wwn2 == (uint64_t)-1)
8800 				wwn_match++;
8801 			else if (wwn1 == wwn2)
8802 				wwn_match++;
8803 		}
8804 
8805 		/* check destination WWN for a match */
8806 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
8807 			wwn1 = wwn_to_u64(fcport->port_name);
8808 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
8809 			if (wwn2 == (uint64_t)-1)
8810 				wwn_match++;
8811 			else if (wwn1 == wwn2)
8812 				wwn_match++;
8813 		}
8814 
8815 		if (pid_match == 2 || wwn_match == 2) {
8816 			/* Found a matching entry */
8817 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
8818 				priority = pri_entry->tag;
8819 			break;
8820 		}
8821 
8822 		pri_entry++;
8823 	}
8824 
8825 	return priority;
8826 }
8827 
8828 /*
8829  * qla24xx_update_fcport_fcp_prio
8830  *	Activates fcp priority for the logged in fc port
8831  *
8832  * Input:
8833  *	vha = scsi host structure pointer.
8834  *	fcp = port structure pointer.
8835  *
8836  * Return:
8837  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8838  *
8839  * Context:
8840  *	Kernel context.
8841  */
8842 int
8843 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8844 {
8845 	int ret;
8846 	int priority;
8847 	uint16_t mb[5];
8848 
8849 	if (fcport->port_type != FCT_TARGET ||
8850 	    fcport->loop_id == FC_NO_LOOP_ID)
8851 		return QLA_FUNCTION_FAILED;
8852 
8853 	priority = qla24xx_get_fcp_prio(vha, fcport);
8854 	if (priority < 0)
8855 		return QLA_FUNCTION_FAILED;
8856 
8857 	if (IS_P3P_TYPE(vha->hw)) {
8858 		fcport->fcp_prio = priority & 0xf;
8859 		return QLA_SUCCESS;
8860 	}
8861 
8862 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
8863 	if (ret == QLA_SUCCESS) {
8864 		if (fcport->fcp_prio != priority)
8865 			ql_dbg(ql_dbg_user, vha, 0x709e,
8866 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
8867 			    "port_id=%02x%02x%02x.\n", priority,
8868 			    fcport->loop_id, fcport->d_id.b.domain,
8869 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
8870 		fcport->fcp_prio = priority & 0xf;
8871 	} else
8872 		ql_dbg(ql_dbg_user, vha, 0x704f,
8873 		    "Unable to update FCP_CMND priority - ret=0x%x for "
8874 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
8875 		    fcport->d_id.b.domain, fcport->d_id.b.area,
8876 		    fcport->d_id.b.al_pa);
8877 	return  ret;
8878 }
8879 
8880 /*
8881  * qla24xx_update_all_fcp_prio
8882  *	Activates fcp priority for all the logged in ports
8883  *
8884  * Input:
8885  *	ha = adapter block pointer.
8886  *
8887  * Return:
8888  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8889  *
8890  * Context:
8891  *	Kernel context.
8892  */
8893 int
8894 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
8895 {
8896 	int ret;
8897 	fc_port_t *fcport;
8898 
8899 	ret = QLA_FUNCTION_FAILED;
8900 	/* We need to set priority for all logged in ports */
8901 	list_for_each_entry(fcport, &vha->vp_fcports, list)
8902 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
8903 
8904 	return ret;
8905 }
8906 
8907 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
8908 	int vp_idx, bool startqp)
8909 {
8910 	int rsp_id = 0;
8911 	int  req_id = 0;
8912 	int i;
8913 	struct qla_hw_data *ha = vha->hw;
8914 	uint16_t qpair_id = 0;
8915 	struct qla_qpair *qpair = NULL;
8916 	struct qla_msix_entry *msix;
8917 
8918 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
8919 		ql_log(ql_log_warn, vha, 0x00181,
8920 		    "FW/Driver is not multi-queue capable.\n");
8921 		return NULL;
8922 	}
8923 
8924 	if (ql2xmqsupport || ql2xnvmeenable) {
8925 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
8926 		if (qpair == NULL) {
8927 			ql_log(ql_log_warn, vha, 0x0182,
8928 			    "Failed to allocate memory for queue pair.\n");
8929 			return NULL;
8930 		}
8931 
8932 		qpair->hw = vha->hw;
8933 		qpair->vha = vha;
8934 		qpair->qp_lock_ptr = &qpair->qp_lock;
8935 		spin_lock_init(&qpair->qp_lock);
8936 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
8937 
8938 		/* Assign available que pair id */
8939 		mutex_lock(&ha->mq_lock);
8940 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
8941 		if (ha->num_qpairs >= ha->max_qpairs) {
8942 			mutex_unlock(&ha->mq_lock);
8943 			ql_log(ql_log_warn, vha, 0x0183,
8944 			    "No resources to create additional q pair.\n");
8945 			goto fail_qid_map;
8946 		}
8947 		ha->num_qpairs++;
8948 		set_bit(qpair_id, ha->qpair_qid_map);
8949 		ha->queue_pair_map[qpair_id] = qpair;
8950 		qpair->id = qpair_id;
8951 		qpair->vp_idx = vp_idx;
8952 		qpair->fw_started = ha->flags.fw_started;
8953 		INIT_LIST_HEAD(&qpair->hints_list);
8954 		qpair->chip_reset = ha->base_qpair->chip_reset;
8955 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
8956 		qpair->enable_explicit_conf =
8957 		    ha->base_qpair->enable_explicit_conf;
8958 
8959 		for (i = 0; i < ha->msix_count; i++) {
8960 			msix = &ha->msix_entries[i];
8961 			if (msix->in_use)
8962 				continue;
8963 			qpair->msix = msix;
8964 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
8965 			    "Vector %x selected for qpair\n", msix->vector);
8966 			break;
8967 		}
8968 		if (!qpair->msix) {
8969 			ql_log(ql_log_warn, vha, 0x0184,
8970 			    "Out of MSI-X vectors!.\n");
8971 			goto fail_msix;
8972 		}
8973 
8974 		qpair->msix->in_use = 1;
8975 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
8976 		qpair->pdev = ha->pdev;
8977 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
8978 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
8979 
8980 		mutex_unlock(&ha->mq_lock);
8981 
8982 		/* Create response queue first */
8983 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
8984 		if (!rsp_id) {
8985 			ql_log(ql_log_warn, vha, 0x0185,
8986 			    "Failed to create response queue.\n");
8987 			goto fail_rsp;
8988 		}
8989 
8990 		qpair->rsp = ha->rsp_q_map[rsp_id];
8991 
8992 		/* Create request queue */
8993 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
8994 		    startqp);
8995 		if (!req_id) {
8996 			ql_log(ql_log_warn, vha, 0x0186,
8997 			    "Failed to create request queue.\n");
8998 			goto fail_req;
8999 		}
9000 
9001 		qpair->req = ha->req_q_map[req_id];
9002 		qpair->rsp->req = qpair->req;
9003 		qpair->rsp->qpair = qpair;
9004 		/* init qpair to this cpu. Will adjust at run time. */
9005 		qla_cpu_update(qpair, smp_processor_id());
9006 
9007 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
9008 			if (ha->fw_attributes & BIT_4)
9009 				qpair->difdix_supported = 1;
9010 		}
9011 
9012 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
9013 		if (!qpair->srb_mempool) {
9014 			ql_log(ql_log_warn, vha, 0xd036,
9015 			    "Failed to create srb mempool for qpair %d\n",
9016 			    qpair->id);
9017 			goto fail_mempool;
9018 		}
9019 
9020 		/* Mark as online */
9021 		qpair->online = 1;
9022 
9023 		if (!vha->flags.qpairs_available)
9024 			vha->flags.qpairs_available = 1;
9025 
9026 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
9027 		    "Request/Response queue pair created, id %d\n",
9028 		    qpair->id);
9029 		ql_dbg(ql_dbg_init, vha, 0x0187,
9030 		    "Request/Response queue pair created, id %d\n",
9031 		    qpair->id);
9032 	}
9033 	return qpair;
9034 
9035 fail_mempool:
9036 fail_req:
9037 	qla25xx_delete_rsp_que(vha, qpair->rsp);
9038 fail_rsp:
9039 	mutex_lock(&ha->mq_lock);
9040 	qpair->msix->in_use = 0;
9041 	list_del(&qpair->qp_list_elem);
9042 	if (list_empty(&vha->qp_list))
9043 		vha->flags.qpairs_available = 0;
9044 fail_msix:
9045 	ha->queue_pair_map[qpair_id] = NULL;
9046 	clear_bit(qpair_id, ha->qpair_qid_map);
9047 	ha->num_qpairs--;
9048 	mutex_unlock(&ha->mq_lock);
9049 fail_qid_map:
9050 	kfree(qpair);
9051 	return NULL;
9052 }
9053 
9054 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
9055 {
9056 	int ret = QLA_FUNCTION_FAILED;
9057 	struct qla_hw_data *ha = qpair->hw;
9058 
9059 	qpair->delete_in_progress = 1;
9060 
9061 	ret = qla25xx_delete_req_que(vha, qpair->req);
9062 	if (ret != QLA_SUCCESS)
9063 		goto fail;
9064 
9065 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
9066 	if (ret != QLA_SUCCESS)
9067 		goto fail;
9068 
9069 	mutex_lock(&ha->mq_lock);
9070 	ha->queue_pair_map[qpair->id] = NULL;
9071 	clear_bit(qpair->id, ha->qpair_qid_map);
9072 	ha->num_qpairs--;
9073 	list_del(&qpair->qp_list_elem);
9074 	if (list_empty(&vha->qp_list)) {
9075 		vha->flags.qpairs_available = 0;
9076 		vha->flags.qpairs_req_created = 0;
9077 		vha->flags.qpairs_rsp_created = 0;
9078 	}
9079 	mempool_destroy(qpair->srb_mempool);
9080 	kfree(qpair);
9081 	mutex_unlock(&ha->mq_lock);
9082 
9083 	return QLA_SUCCESS;
9084 fail:
9085 	return ret;
9086 }
9087