xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision 165f2d28)
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 = 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__, (void *)&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 = (void *)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 = 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_DWORD(&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_DWORD(&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_OFFET);
2865 
2866 }
2867 
2868 static void
2869 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
2870 {
2871 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2872 
2873 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2874 	WRT_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET, data);
2875 }
2876 
2877 static void
2878 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
2879 {
2880 	uint32_t wd32 = 0;
2881 	uint delta_msec = 100;
2882 	uint elapsed_msec = 0;
2883 	uint timeout_msec;
2884 	ulong n;
2885 
2886 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
2887 	    vha->hw->pdev->subsystem_device != 0x0240)
2888 		return;
2889 
2890 	WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
2891 	udelay(100);
2892 
2893 attempt:
2894 	timeout_msec = TIMEOUT_SEMAPHORE;
2895 	n = timeout_msec / delta_msec;
2896 	while (n--) {
2897 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
2898 		qla25xx_read_risc_sema_reg(vha, &wd32);
2899 		if (wd32 & RISC_SEMAPHORE)
2900 			break;
2901 		msleep(delta_msec);
2902 		elapsed_msec += delta_msec;
2903 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2904 			goto force;
2905 	}
2906 
2907 	if (!(wd32 & RISC_SEMAPHORE))
2908 		goto force;
2909 
2910 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
2911 		goto acquired;
2912 
2913 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
2914 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
2915 	n = timeout_msec / delta_msec;
2916 	while (n--) {
2917 		qla25xx_read_risc_sema_reg(vha, &wd32);
2918 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
2919 			break;
2920 		msleep(delta_msec);
2921 		elapsed_msec += delta_msec;
2922 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2923 			goto force;
2924 	}
2925 
2926 	if (wd32 & RISC_SEMAPHORE_FORCE)
2927 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
2928 
2929 	goto attempt;
2930 
2931 force:
2932 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
2933 
2934 acquired:
2935 	return;
2936 }
2937 
2938 /**
2939  * qla24xx_reset_chip() - Reset ISP24xx chip.
2940  * @vha: HA context
2941  *
2942  * Returns 0 on success.
2943  */
2944 int
2945 qla24xx_reset_chip(scsi_qla_host_t *vha)
2946 {
2947 	struct qla_hw_data *ha = vha->hw;
2948 	int rval = QLA_FUNCTION_FAILED;
2949 
2950 	if (pci_channel_offline(ha->pdev) &&
2951 	    ha->flags.pci_channel_io_perm_failure) {
2952 		return rval;
2953 	}
2954 
2955 	ha->isp_ops->disable_intrs(ha);
2956 
2957 	qla25xx_manipulate_risc_semaphore(vha);
2958 
2959 	/* Perform RISC reset. */
2960 	rval = qla24xx_reset_risc(vha);
2961 
2962 	return rval;
2963 }
2964 
2965 /**
2966  * qla2x00_chip_diag() - Test chip for proper operation.
2967  * @vha: HA context
2968  *
2969  * Returns 0 on success.
2970  */
2971 int
2972 qla2x00_chip_diag(scsi_qla_host_t *vha)
2973 {
2974 	int		rval;
2975 	struct qla_hw_data *ha = vha->hw;
2976 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2977 	unsigned long	flags = 0;
2978 	uint16_t	data;
2979 	uint32_t	cnt;
2980 	uint16_t	mb[5];
2981 	struct req_que *req = ha->req_q_map[0];
2982 
2983 	/* Assume a failed state */
2984 	rval = QLA_FUNCTION_FAILED;
2985 
2986 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
2987 	       &reg->flash_address);
2988 
2989 	spin_lock_irqsave(&ha->hardware_lock, flags);
2990 
2991 	/* Reset ISP chip. */
2992 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2993 
2994 	/*
2995 	 * We need to have a delay here since the card will not respond while
2996 	 * in reset causing an MCA on some architectures.
2997 	 */
2998 	udelay(20);
2999 	data = qla2x00_debounce_register(&reg->ctrl_status);
3000 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
3001 		udelay(5);
3002 		data = RD_REG_WORD(&reg->ctrl_status);
3003 		barrier();
3004 	}
3005 
3006 	if (!cnt)
3007 		goto chip_diag_failed;
3008 
3009 	ql_dbg(ql_dbg_init, vha, 0x007c,
3010 	    "Reset register cleared by chip reset.\n");
3011 
3012 	/* Reset RISC processor. */
3013 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
3014 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
3015 
3016 	/* Workaround for QLA2312 PCI parity error */
3017 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
3018 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
3019 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
3020 			udelay(5);
3021 			data = RD_MAILBOX_REG(ha, reg, 0);
3022 			barrier();
3023 		}
3024 	} else
3025 		udelay(10);
3026 
3027 	if (!cnt)
3028 		goto chip_diag_failed;
3029 
3030 	/* Check product ID of chip */
3031 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
3032 
3033 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
3034 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
3035 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
3036 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
3037 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
3038 	    mb[3] != PROD_ID_3) {
3039 		ql_log(ql_log_warn, vha, 0x0062,
3040 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
3041 		    mb[1], mb[2], mb[3]);
3042 
3043 		goto chip_diag_failed;
3044 	}
3045 	ha->product_id[0] = mb[1];
3046 	ha->product_id[1] = mb[2];
3047 	ha->product_id[2] = mb[3];
3048 	ha->product_id[3] = mb[4];
3049 
3050 	/* Adjust fw RISC transfer size */
3051 	if (req->length > 1024)
3052 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
3053 	else
3054 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
3055 		    req->length;
3056 
3057 	if (IS_QLA2200(ha) &&
3058 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
3059 		/* Limit firmware transfer size with a 2200A */
3060 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
3061 
3062 		ha->device_type |= DT_ISP2200A;
3063 		ha->fw_transfer_size = 128;
3064 	}
3065 
3066 	/* Wrap Incoming Mailboxes Test. */
3067 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3068 
3069 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
3070 	rval = qla2x00_mbx_reg_test(vha);
3071 	if (rval)
3072 		ql_log(ql_log_warn, vha, 0x0080,
3073 		    "Failed mailbox send register test.\n");
3074 	else
3075 		/* Flag a successful rval */
3076 		rval = QLA_SUCCESS;
3077 	spin_lock_irqsave(&ha->hardware_lock, flags);
3078 
3079 chip_diag_failed:
3080 	if (rval)
3081 		ql_log(ql_log_info, vha, 0x0081,
3082 		    "Chip diagnostics **** FAILED ****.\n");
3083 
3084 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3085 
3086 	return (rval);
3087 }
3088 
3089 /**
3090  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
3091  * @vha: HA context
3092  *
3093  * Returns 0 on success.
3094  */
3095 int
3096 qla24xx_chip_diag(scsi_qla_host_t *vha)
3097 {
3098 	int rval;
3099 	struct qla_hw_data *ha = vha->hw;
3100 	struct req_que *req = ha->req_q_map[0];
3101 
3102 	if (IS_P3P_TYPE(ha))
3103 		return QLA_SUCCESS;
3104 
3105 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
3106 
3107 	rval = qla2x00_mbx_reg_test(vha);
3108 	if (rval) {
3109 		ql_log(ql_log_warn, vha, 0x0082,
3110 		    "Failed mailbox send register test.\n");
3111 	} else {
3112 		/* Flag a successful rval */
3113 		rval = QLA_SUCCESS;
3114 	}
3115 
3116 	return rval;
3117 }
3118 
3119 static void
3120 qla2x00_init_fce_trace(scsi_qla_host_t *vha)
3121 {
3122 	int rval;
3123 	dma_addr_t tc_dma;
3124 	void *tc;
3125 	struct qla_hw_data *ha = vha->hw;
3126 
3127 	if (!IS_FWI2_CAPABLE(ha))
3128 		return;
3129 
3130 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3131 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3132 		return;
3133 
3134 	if (ha->fce) {
3135 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3136 		       "%s: FCE Mem is already allocated.\n",
3137 		       __func__);
3138 		return;
3139 	}
3140 
3141 	/* Allocate memory for Fibre Channel Event Buffer. */
3142 	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
3143 				GFP_KERNEL);
3144 	if (!tc) {
3145 		ql_log(ql_log_warn, vha, 0x00be,
3146 		       "Unable to allocate (%d KB) for FCE.\n",
3147 		       FCE_SIZE / 1024);
3148 		return;
3149 	}
3150 
3151 	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
3152 					ha->fce_mb, &ha->fce_bufs);
3153 	if (rval) {
3154 		ql_log(ql_log_warn, vha, 0x00bf,
3155 		       "Unable to initialize FCE (%d).\n", rval);
3156 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
3157 		return;
3158 	}
3159 
3160 	ql_dbg(ql_dbg_init, vha, 0x00c0,
3161 	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
3162 
3163 	ha->flags.fce_enabled = 1;
3164 	ha->fce_dma = tc_dma;
3165 	ha->fce = tc;
3166 }
3167 
3168 static void
3169 qla2x00_init_eft_trace(scsi_qla_host_t *vha)
3170 {
3171 	int rval;
3172 	dma_addr_t tc_dma;
3173 	void *tc;
3174 	struct qla_hw_data *ha = vha->hw;
3175 
3176 	if (!IS_FWI2_CAPABLE(ha))
3177 		return;
3178 
3179 	if (ha->eft) {
3180 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3181 		    "%s: EFT Mem is already allocated.\n",
3182 		    __func__);
3183 		return;
3184 	}
3185 
3186 	/* Allocate memory for Extended Trace Buffer. */
3187 	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
3188 				GFP_KERNEL);
3189 	if (!tc) {
3190 		ql_log(ql_log_warn, vha, 0x00c1,
3191 		       "Unable to allocate (%d KB) for EFT.\n",
3192 		       EFT_SIZE / 1024);
3193 		return;
3194 	}
3195 
3196 	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
3197 	if (rval) {
3198 		ql_log(ql_log_warn, vha, 0x00c2,
3199 		       "Unable to initialize EFT (%d).\n", rval);
3200 		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
3201 		return;
3202 	}
3203 
3204 	ql_dbg(ql_dbg_init, vha, 0x00c3,
3205 	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
3206 
3207 	ha->eft_dma = tc_dma;
3208 	ha->eft = tc;
3209 }
3210 
3211 static void
3212 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
3213 {
3214 	qla2x00_init_fce_trace(vha);
3215 	qla2x00_init_eft_trace(vha);
3216 }
3217 
3218 void
3219 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
3220 {
3221 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
3222 	    eft_size, fce_size, mq_size;
3223 	struct qla_hw_data *ha = vha->hw;
3224 	struct req_que *req = ha->req_q_map[0];
3225 	struct rsp_que *rsp = ha->rsp_q_map[0];
3226 	struct qla2xxx_fw_dump *fw_dump;
3227 
3228 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
3229 	req_q_size = rsp_q_size = 0;
3230 
3231 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3232 		fixed_size = sizeof(struct qla2100_fw_dump);
3233 	} else if (IS_QLA23XX(ha)) {
3234 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
3235 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
3236 		    sizeof(uint16_t);
3237 	} else if (IS_FWI2_CAPABLE(ha)) {
3238 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3239 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
3240 		else if (IS_QLA81XX(ha))
3241 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
3242 		else if (IS_QLA25XX(ha))
3243 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
3244 		else
3245 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
3246 
3247 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
3248 		    sizeof(uint32_t);
3249 		if (ha->mqenable) {
3250 			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) &&
3251 			    !IS_QLA28XX(ha))
3252 				mq_size = sizeof(struct qla2xxx_mq_chain);
3253 			/*
3254 			 * Allocate maximum buffer size for all queues - Q0.
3255 			 * Resizing must be done at end-of-dump processing.
3256 			 */
3257 			mq_size += (ha->max_req_queues - 1) *
3258 			    (req->length * sizeof(request_t));
3259 			mq_size += (ha->max_rsp_queues - 1) *
3260 			    (rsp->length * sizeof(response_t));
3261 		}
3262 		if (ha->tgt.atio_ring)
3263 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
3264 
3265 		qla2x00_init_fce_trace(vha);
3266 		if (ha->fce)
3267 			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
3268 		qla2x00_init_eft_trace(vha);
3269 		if (ha->eft)
3270 			eft_size = EFT_SIZE;
3271 	}
3272 
3273 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3274 		struct fwdt *fwdt = ha->fwdt;
3275 		uint j;
3276 
3277 		for (j = 0; j < 2; j++, fwdt++) {
3278 			if (!fwdt->template) {
3279 				ql_dbg(ql_dbg_init, vha, 0x00ba,
3280 				    "-> fwdt%u no template\n", j);
3281 				continue;
3282 			}
3283 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3284 			    "-> fwdt%u calculating fwdump size...\n", j);
3285 			fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
3286 			    vha, fwdt->template);
3287 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3288 			    "-> fwdt%u calculated fwdump size = %#lx bytes\n",
3289 			    j, fwdt->dump_size);
3290 			dump_size += fwdt->dump_size;
3291 		}
3292 	} else {
3293 		req_q_size = req->length * sizeof(request_t);
3294 		rsp_q_size = rsp->length * sizeof(response_t);
3295 		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3296 		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
3297 			+ eft_size;
3298 		ha->chain_offset = dump_size;
3299 		dump_size += mq_size + fce_size;
3300 		if (ha->exchoffld_buf)
3301 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3302 				ha->exchoffld_size;
3303 		if (ha->exlogin_buf)
3304 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3305 				ha->exlogin_size;
3306 	}
3307 
3308 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
3309 
3310 		ql_dbg(ql_dbg_init, vha, 0x00c5,
3311 		    "%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
3312 		    __func__, dump_size, ha->fw_dump_len,
3313 		    ha->fw_dump_alloc_len);
3314 
3315 		fw_dump = vmalloc(dump_size);
3316 		if (!fw_dump) {
3317 			ql_log(ql_log_warn, vha, 0x00c4,
3318 			    "Unable to allocate (%d KB) for firmware dump.\n",
3319 			    dump_size / 1024);
3320 		} else {
3321 			mutex_lock(&ha->optrom_mutex);
3322 			if (ha->fw_dumped) {
3323 				memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
3324 				vfree(ha->fw_dump);
3325 				ha->fw_dump = fw_dump;
3326 				ha->fw_dump_alloc_len =  dump_size;
3327 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3328 				    "Re-Allocated (%d KB) and save firmware dump.\n",
3329 				    dump_size / 1024);
3330 			} else {
3331 				if (ha->fw_dump)
3332 					vfree(ha->fw_dump);
3333 				ha->fw_dump = fw_dump;
3334 
3335 				ha->fw_dump_len = ha->fw_dump_alloc_len =
3336 				    dump_size;
3337 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3338 				    "Allocated (%d KB) for firmware dump.\n",
3339 				    dump_size / 1024);
3340 
3341 				if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3342 					mutex_unlock(&ha->optrom_mutex);
3343 					return;
3344 				}
3345 
3346 				ha->fw_dump->signature[0] = 'Q';
3347 				ha->fw_dump->signature[1] = 'L';
3348 				ha->fw_dump->signature[2] = 'G';
3349 				ha->fw_dump->signature[3] = 'C';
3350 				ha->fw_dump->version = htonl(1);
3351 
3352 				ha->fw_dump->fixed_size = htonl(fixed_size);
3353 				ha->fw_dump->mem_size = htonl(mem_size);
3354 				ha->fw_dump->req_q_size = htonl(req_q_size);
3355 				ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3356 
3357 				ha->fw_dump->eft_size = htonl(eft_size);
3358 				ha->fw_dump->eft_addr_l =
3359 				    htonl(LSD(ha->eft_dma));
3360 				ha->fw_dump->eft_addr_h =
3361 				    htonl(MSD(ha->eft_dma));
3362 
3363 				ha->fw_dump->header_size =
3364 					htonl(offsetof
3365 					    (struct qla2xxx_fw_dump, isp));
3366 			}
3367 			mutex_unlock(&ha->optrom_mutex);
3368 		}
3369 	}
3370 }
3371 
3372 static int
3373 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3374 {
3375 #define MPS_MASK	0xe0
3376 	int rval;
3377 	uint16_t dc;
3378 	uint32_t dw;
3379 
3380 	if (!IS_QLA81XX(vha->hw))
3381 		return QLA_SUCCESS;
3382 
3383 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3384 	if (rval != QLA_SUCCESS) {
3385 		ql_log(ql_log_warn, vha, 0x0105,
3386 		    "Unable to acquire semaphore.\n");
3387 		goto done;
3388 	}
3389 
3390 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3391 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3392 	if (rval != QLA_SUCCESS) {
3393 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3394 		goto done_release;
3395 	}
3396 
3397 	dc &= MPS_MASK;
3398 	if (dc == (dw & MPS_MASK))
3399 		goto done_release;
3400 
3401 	dw &= ~MPS_MASK;
3402 	dw |= dc;
3403 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3404 	if (rval != QLA_SUCCESS) {
3405 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3406 	}
3407 
3408 done_release:
3409 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3410 	if (rval != QLA_SUCCESS) {
3411 		ql_log(ql_log_warn, vha, 0x006d,
3412 		    "Unable to release semaphore.\n");
3413 	}
3414 
3415 done:
3416 	return rval;
3417 }
3418 
3419 int
3420 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3421 {
3422 	/* Don't try to reallocate the array */
3423 	if (req->outstanding_cmds)
3424 		return QLA_SUCCESS;
3425 
3426 	if (!IS_FWI2_CAPABLE(ha))
3427 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3428 	else {
3429 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3430 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3431 		else
3432 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3433 	}
3434 
3435 	req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3436 					sizeof(srb_t *),
3437 					GFP_KERNEL);
3438 
3439 	if (!req->outstanding_cmds) {
3440 		/*
3441 		 * Try to allocate a minimal size just so we can get through
3442 		 * initialization.
3443 		 */
3444 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3445 		req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3446 						sizeof(srb_t *),
3447 						GFP_KERNEL);
3448 
3449 		if (!req->outstanding_cmds) {
3450 			ql_log(ql_log_fatal, NULL, 0x0126,
3451 			    "Failed to allocate memory for "
3452 			    "outstanding_cmds for req_que %p.\n", req);
3453 			req->num_outstanding_cmds = 0;
3454 			return QLA_FUNCTION_FAILED;
3455 		}
3456 	}
3457 
3458 	return QLA_SUCCESS;
3459 }
3460 
3461 #define PRINT_FIELD(_field, _flag, _str) {		\
3462 	if (a0->_field & _flag) {\
3463 		if (p) {\
3464 			strcat(ptr, "|");\
3465 			ptr++;\
3466 			leftover--;\
3467 		} \
3468 		len = snprintf(ptr, leftover, "%s", _str);	\
3469 		p = 1;\
3470 		leftover -= len;\
3471 		ptr += len; \
3472 	} \
3473 }
3474 
3475 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3476 {
3477 #define STR_LEN 64
3478 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3479 	u8 str[STR_LEN], *ptr, p;
3480 	int leftover, len;
3481 
3482 	memset(str, 0, STR_LEN);
3483 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3484 	ql_dbg(ql_dbg_init, vha, 0x015a,
3485 	    "SFP MFG Name: %s\n", str);
3486 
3487 	memset(str, 0, STR_LEN);
3488 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3489 	ql_dbg(ql_dbg_init, vha, 0x015c,
3490 	    "SFP Part Name: %s\n", str);
3491 
3492 	/* media */
3493 	memset(str, 0, STR_LEN);
3494 	ptr = str;
3495 	leftover = STR_LEN;
3496 	p = len = 0;
3497 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3498 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3499 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3500 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3501 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3502 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3503 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3504 	ql_dbg(ql_dbg_init, vha, 0x0160,
3505 	    "SFP Media: %s\n", str);
3506 
3507 	/* link length */
3508 	memset(str, 0, STR_LEN);
3509 	ptr = str;
3510 	leftover = STR_LEN;
3511 	p = len = 0;
3512 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3513 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3514 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3515 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3516 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3517 	ql_dbg(ql_dbg_init, vha, 0x0196,
3518 	    "SFP Link Length: %s\n", str);
3519 
3520 	memset(str, 0, STR_LEN);
3521 	ptr = str;
3522 	leftover = STR_LEN;
3523 	p = len = 0;
3524 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3525 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3526 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3527 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3528 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3529 	ql_dbg(ql_dbg_init, vha, 0x016e,
3530 	    "SFP FC Link Tech: %s\n", str);
3531 
3532 	if (a0->length_km)
3533 		ql_dbg(ql_dbg_init, vha, 0x016f,
3534 		    "SFP Distant: %d km\n", a0->length_km);
3535 	if (a0->length_100m)
3536 		ql_dbg(ql_dbg_init, vha, 0x0170,
3537 		    "SFP Distant: %d m\n", a0->length_100m*100);
3538 	if (a0->length_50um_10m)
3539 		ql_dbg(ql_dbg_init, vha, 0x0189,
3540 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3541 	if (a0->length_62um_10m)
3542 		ql_dbg(ql_dbg_init, vha, 0x018a,
3543 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3544 	if (a0->length_om4_10m)
3545 		ql_dbg(ql_dbg_init, vha, 0x0194,
3546 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3547 	if (a0->length_om3_10m)
3548 		ql_dbg(ql_dbg_init, vha, 0x0195,
3549 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3550 }
3551 
3552 
3553 /**
3554  * qla24xx_detect_sfp()
3555  *
3556  * @vha: adapter state pointer.
3557  *
3558  * @return
3559  *	0 -- Configure firmware to use short-range settings -- normal
3560  *	     buffer-to-buffer credits.
3561  *
3562  *	1 -- Configure firmware to use long-range settings -- extra
3563  *	     buffer-to-buffer credits should be allocated with
3564  *	     ha->lr_distance containing distance settings from NVRAM or SFP
3565  *	     (if supported).
3566  */
3567 int
3568 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3569 {
3570 	int rc, used_nvram;
3571 	struct sff_8247_a0 *a;
3572 	struct qla_hw_data *ha = vha->hw;
3573 	struct nvram_81xx *nv = ha->nvram;
3574 #define LR_DISTANCE_UNKNOWN	2
3575 	static const char * const types[] = { "Short", "Long" };
3576 	static const char * const lengths[] = { "(10km)", "(5km)", "" };
3577 	u8 ll = 0;
3578 
3579 	/* Seed with NVRAM settings. */
3580 	used_nvram = 0;
3581 	ha->flags.lr_detected = 0;
3582 	if (IS_BPM_RANGE_CAPABLE(ha) &&
3583 	    (nv->enhanced_features & NEF_LR_DIST_ENABLE)) {
3584 		used_nvram = 1;
3585 		ha->flags.lr_detected = 1;
3586 		ha->lr_distance =
3587 		    (nv->enhanced_features >> LR_DIST_NV_POS)
3588 		     & LR_DIST_NV_MASK;
3589 	}
3590 
3591 	if (!IS_BPM_ENABLED(vha))
3592 		goto out;
3593 	/* Determine SR/LR capabilities of SFP/Transceiver. */
3594 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3595 	if (rc)
3596 		goto out;
3597 
3598 	used_nvram = 0;
3599 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3600 	qla2xxx_print_sfp_info(vha);
3601 
3602 	ha->flags.lr_detected = 0;
3603 	ll = a->fc_ll_cc7;
3604 	if (ll & FC_LL_VL || ll & FC_LL_L) {
3605 		/* Long range, track length. */
3606 		ha->flags.lr_detected = 1;
3607 
3608 		if (a->length_km > 5 || a->length_100m > 50)
3609 			ha->lr_distance = LR_DISTANCE_10K;
3610 		else
3611 			ha->lr_distance = LR_DISTANCE_5K;
3612 	}
3613 
3614 out:
3615 	ql_dbg(ql_dbg_async, vha, 0x507b,
3616 	    "SFP detect: %s-Range SFP %s (nvr=%x ll=%x lr=%x lrd=%x).\n",
3617 	    types[ha->flags.lr_detected],
3618 	    ha->flags.lr_detected ? lengths[ha->lr_distance] :
3619 	       lengths[LR_DISTANCE_UNKNOWN],
3620 	    used_nvram, ll, ha->flags.lr_detected, ha->lr_distance);
3621 	return ha->flags.lr_detected;
3622 }
3623 
3624 /**
3625  * qla2x00_setup_chip() - Load and start RISC firmware.
3626  * @vha: HA context
3627  *
3628  * Returns 0 on success.
3629  */
3630 static int
3631 qla2x00_setup_chip(scsi_qla_host_t *vha)
3632 {
3633 	int rval;
3634 	uint32_t srisc_address = 0;
3635 	struct qla_hw_data *ha = vha->hw;
3636 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3637 	unsigned long flags;
3638 	uint16_t fw_major_version;
3639 	int done_once = 0;
3640 
3641 	if (IS_P3P_TYPE(ha)) {
3642 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3643 		if (rval == QLA_SUCCESS) {
3644 			qla2x00_stop_firmware(vha);
3645 			goto enable_82xx_npiv;
3646 		} else
3647 			goto failed;
3648 	}
3649 
3650 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3651 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3652 		spin_lock_irqsave(&ha->hardware_lock, flags);
3653 		WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
3654 		RD_REG_WORD(&reg->hccr);
3655 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3656 	}
3657 
3658 	qla81xx_mpi_sync(vha);
3659 
3660 execute_fw_with_lr:
3661 	/* Load firmware sequences */
3662 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
3663 	if (rval == QLA_SUCCESS) {
3664 		ql_dbg(ql_dbg_init, vha, 0x00c9,
3665 		    "Verifying Checksum of loaded RISC code.\n");
3666 
3667 		rval = qla2x00_verify_checksum(vha, srisc_address);
3668 		if (rval == QLA_SUCCESS) {
3669 			/* Start firmware execution. */
3670 			ql_dbg(ql_dbg_init, vha, 0x00ca,
3671 			    "Starting firmware.\n");
3672 
3673 			if (ql2xexlogins)
3674 				ha->flags.exlogins_enabled = 1;
3675 
3676 			if (qla_is_exch_offld_enabled(vha))
3677 				ha->flags.exchoffld_enabled = 1;
3678 
3679 			rval = qla2x00_execute_fw(vha, srisc_address);
3680 			/* Retrieve firmware information. */
3681 			if (rval == QLA_SUCCESS) {
3682 				/* Enable BPM support? */
3683 				if (!done_once++ && qla24xx_detect_sfp(vha)) {
3684 					ql_dbg(ql_dbg_init, vha, 0x00ca,
3685 					    "Re-starting firmware -- BPM.\n");
3686 					/* Best-effort - re-init. */
3687 					ha->isp_ops->reset_chip(vha);
3688 					ha->isp_ops->chip_diag(vha);
3689 					goto execute_fw_with_lr;
3690 				}
3691 
3692 				if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3693 				    IS_QLA28XX(ha)) &&
3694 				    (ha->zio_mode == QLA_ZIO_MODE_6))
3695 					qla27xx_set_zio_threshold(vha,
3696 					    ha->last_zio_threshold);
3697 
3698 				rval = qla2x00_set_exlogins_buffer(vha);
3699 				if (rval != QLA_SUCCESS)
3700 					goto failed;
3701 
3702 				rval = qla2x00_set_exchoffld_buffer(vha);
3703 				if (rval != QLA_SUCCESS)
3704 					goto failed;
3705 
3706 enable_82xx_npiv:
3707 				fw_major_version = ha->fw_major_version;
3708 				if (IS_P3P_TYPE(ha))
3709 					qla82xx_check_md_needed(vha);
3710 				else
3711 					rval = qla2x00_get_fw_version(vha);
3712 				if (rval != QLA_SUCCESS)
3713 					goto failed;
3714 				ha->flags.npiv_supported = 0;
3715 				if (IS_QLA2XXX_MIDTYPE(ha) &&
3716 					 (ha->fw_attributes & BIT_2)) {
3717 					ha->flags.npiv_supported = 1;
3718 					if ((!ha->max_npiv_vports) ||
3719 					    ((ha->max_npiv_vports + 1) %
3720 					    MIN_MULTI_ID_FABRIC))
3721 						ha->max_npiv_vports =
3722 						    MIN_MULTI_ID_FABRIC - 1;
3723 				}
3724 				qla2x00_get_resource_cnts(vha);
3725 
3726 				/*
3727 				 * Allocate the array of outstanding commands
3728 				 * now that we know the firmware resources.
3729 				 */
3730 				rval = qla2x00_alloc_outstanding_cmds(ha,
3731 				    vha->req);
3732 				if (rval != QLA_SUCCESS)
3733 					goto failed;
3734 
3735 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
3736 					qla2x00_alloc_offload_mem(vha);
3737 
3738 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
3739 					qla2x00_alloc_fw_dump(vha);
3740 
3741 			} else {
3742 				goto failed;
3743 			}
3744 		} else {
3745 			ql_log(ql_log_fatal, vha, 0x00cd,
3746 			    "ISP Firmware failed checksum.\n");
3747 			goto failed;
3748 		}
3749 
3750 		/* Enable PUREX PASSTHRU */
3751 		if (ql2xrdpenable)
3752 			qla25xx_set_els_cmds_supported(vha);
3753 	} else
3754 		goto failed;
3755 
3756 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3757 		/* Enable proper parity. */
3758 		spin_lock_irqsave(&ha->hardware_lock, flags);
3759 		if (IS_QLA2300(ha))
3760 			/* SRAM parity */
3761 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
3762 		else
3763 			/* SRAM, Instruction RAM and GP RAM parity */
3764 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
3765 		RD_REG_WORD(&reg->hccr);
3766 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3767 	}
3768 
3769 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
3770 		ha->flags.fac_supported = 1;
3771 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
3772 		uint32_t size;
3773 
3774 		rval = qla81xx_fac_get_sector_size(vha, &size);
3775 		if (rval == QLA_SUCCESS) {
3776 			ha->flags.fac_supported = 1;
3777 			ha->fdt_block_size = size << 2;
3778 		} else {
3779 			ql_log(ql_log_warn, vha, 0x00ce,
3780 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
3781 			    ha->fw_major_version, ha->fw_minor_version,
3782 			    ha->fw_subminor_version);
3783 
3784 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3785 			    IS_QLA28XX(ha)) {
3786 				ha->flags.fac_supported = 0;
3787 				rval = QLA_SUCCESS;
3788 			}
3789 		}
3790 	}
3791 failed:
3792 	if (rval) {
3793 		ql_log(ql_log_fatal, vha, 0x00cf,
3794 		    "Setup chip ****FAILED****.\n");
3795 	}
3796 
3797 	return (rval);
3798 }
3799 
3800 /**
3801  * qla2x00_init_response_q_entries() - Initializes response queue entries.
3802  * @rsp: response queue
3803  *
3804  * Beginning of request ring has initialization control block already built
3805  * by nvram config routine.
3806  *
3807  * Returns 0 on success.
3808  */
3809 void
3810 qla2x00_init_response_q_entries(struct rsp_que *rsp)
3811 {
3812 	uint16_t cnt;
3813 	response_t *pkt;
3814 
3815 	rsp->ring_ptr = rsp->ring;
3816 	rsp->ring_index    = 0;
3817 	rsp->status_srb = NULL;
3818 	pkt = rsp->ring_ptr;
3819 	for (cnt = 0; cnt < rsp->length; cnt++) {
3820 		pkt->signature = RESPONSE_PROCESSED;
3821 		pkt++;
3822 	}
3823 }
3824 
3825 /**
3826  * qla2x00_update_fw_options() - Read and process firmware options.
3827  * @vha: HA context
3828  *
3829  * Returns 0 on success.
3830  */
3831 void
3832 qla2x00_update_fw_options(scsi_qla_host_t *vha)
3833 {
3834 	uint16_t swing, emphasis, tx_sens, rx_sens;
3835 	struct qla_hw_data *ha = vha->hw;
3836 
3837 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
3838 	qla2x00_get_fw_options(vha, ha->fw_options);
3839 
3840 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
3841 		return;
3842 
3843 	/* Serial Link options. */
3844 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
3845 	    "Serial link options.\n");
3846 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
3847 	    ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
3848 
3849 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
3850 	if (ha->fw_seriallink_options[3] & BIT_2) {
3851 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
3852 
3853 		/*  1G settings */
3854 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
3855 		emphasis = (ha->fw_seriallink_options[2] &
3856 		    (BIT_4 | BIT_3)) >> 3;
3857 		tx_sens = ha->fw_seriallink_options[0] &
3858 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3859 		rx_sens = (ha->fw_seriallink_options[0] &
3860 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3861 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
3862 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3863 			if (rx_sens == 0x0)
3864 				rx_sens = 0x3;
3865 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
3866 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3867 			ha->fw_options[10] |= BIT_5 |
3868 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3869 			    (tx_sens & (BIT_1 | BIT_0));
3870 
3871 		/*  2G settings */
3872 		swing = (ha->fw_seriallink_options[2] &
3873 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
3874 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
3875 		tx_sens = ha->fw_seriallink_options[1] &
3876 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3877 		rx_sens = (ha->fw_seriallink_options[1] &
3878 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3879 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
3880 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3881 			if (rx_sens == 0x0)
3882 				rx_sens = 0x3;
3883 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
3884 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3885 			ha->fw_options[11] |= BIT_5 |
3886 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3887 			    (tx_sens & (BIT_1 | BIT_0));
3888 	}
3889 
3890 	/* FCP2 options. */
3891 	/*  Return command IOCBs without waiting for an ABTS to complete. */
3892 	ha->fw_options[3] |= BIT_13;
3893 
3894 	/* LED scheme. */
3895 	if (ha->flags.enable_led_scheme)
3896 		ha->fw_options[2] |= BIT_12;
3897 
3898 	/* Detect ISP6312. */
3899 	if (IS_QLA6312(ha))
3900 		ha->fw_options[2] |= BIT_13;
3901 
3902 	/* Set Retry FLOGI in case of P2P connection */
3903 	if (ha->operating_mode == P2P) {
3904 		ha->fw_options[2] |= BIT_3;
3905 		ql_dbg(ql_dbg_disc, vha, 0x2100,
3906 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3907 			__func__, ha->fw_options[2]);
3908 	}
3909 
3910 	/* Update firmware options. */
3911 	qla2x00_set_fw_options(vha, ha->fw_options);
3912 }
3913 
3914 void
3915 qla24xx_update_fw_options(scsi_qla_host_t *vha)
3916 {
3917 	int rval;
3918 	struct qla_hw_data *ha = vha->hw;
3919 
3920 	if (IS_P3P_TYPE(ha))
3921 		return;
3922 
3923 	/*  Hold status IOCBs until ABTS response received. */
3924 	if (ql2xfwholdabts)
3925 		ha->fw_options[3] |= BIT_12;
3926 
3927 	/* Set Retry FLOGI in case of P2P connection */
3928 	if (ha->operating_mode == P2P) {
3929 		ha->fw_options[2] |= BIT_3;
3930 		ql_dbg(ql_dbg_disc, vha, 0x2101,
3931 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3932 			__func__, ha->fw_options[2]);
3933 	}
3934 
3935 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
3936 	if (ql2xmvasynctoatio &&
3937 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
3938 		if (qla_tgt_mode_enabled(vha) ||
3939 		    qla_dual_mode_enabled(vha))
3940 			ha->fw_options[2] |= BIT_11;
3941 		else
3942 			ha->fw_options[2] &= ~BIT_11;
3943 	}
3944 
3945 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3946 	    IS_QLA28XX(ha)) {
3947 		/*
3948 		 * Tell FW to track each exchange to prevent
3949 		 * driver from using stale exchange.
3950 		 */
3951 		if (qla_tgt_mode_enabled(vha) ||
3952 		    qla_dual_mode_enabled(vha))
3953 			ha->fw_options[2] |= BIT_4;
3954 		else
3955 			ha->fw_options[2] &= ~BIT_4;
3956 
3957 		/* Reserve 1/2 of emergency exchanges for ELS.*/
3958 		if (qla2xuseresexchforels)
3959 			ha->fw_options[2] |= BIT_8;
3960 		else
3961 			ha->fw_options[2] &= ~BIT_8;
3962 	}
3963 
3964 	if (ql2xrdpenable)
3965 		ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
3966 
3967 	/* Enable Async 8130/8131 events -- transceiver insertion/removal */
3968 	if (IS_BPM_RANGE_CAPABLE(ha))
3969 		ha->fw_options[3] |= BIT_10;
3970 
3971 	ql_dbg(ql_dbg_init, vha, 0x00e8,
3972 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
3973 	    __func__, ha->fw_options[1], ha->fw_options[2],
3974 	    ha->fw_options[3], vha->host->active_mode);
3975 
3976 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
3977 		qla2x00_set_fw_options(vha, ha->fw_options);
3978 
3979 	/* Update Serial Link options. */
3980 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
3981 		return;
3982 
3983 	rval = qla2x00_set_serdes_params(vha,
3984 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
3985 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
3986 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
3987 	if (rval != QLA_SUCCESS) {
3988 		ql_log(ql_log_warn, vha, 0x0104,
3989 		    "Unable to update Serial Link options (%x).\n", rval);
3990 	}
3991 }
3992 
3993 void
3994 qla2x00_config_rings(struct scsi_qla_host *vha)
3995 {
3996 	struct qla_hw_data *ha = vha->hw;
3997 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3998 	struct req_que *req = ha->req_q_map[0];
3999 	struct rsp_que *rsp = ha->rsp_q_map[0];
4000 
4001 	/* Setup ring parameters in initialization control block. */
4002 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
4003 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
4004 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
4005 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
4006 	put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
4007 	put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
4008 
4009 	WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
4010 	WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
4011 	WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
4012 	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
4013 	RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
4014 }
4015 
4016 void
4017 qla24xx_config_rings(struct scsi_qla_host *vha)
4018 {
4019 	struct qla_hw_data *ha = vha->hw;
4020 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
4021 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
4022 	struct qla_msix_entry *msix;
4023 	struct init_cb_24xx *icb;
4024 	uint16_t rid = 0;
4025 	struct req_que *req = ha->req_q_map[0];
4026 	struct rsp_que *rsp = ha->rsp_q_map[0];
4027 
4028 	/* Setup ring parameters in initialization control block. */
4029 	icb = (struct init_cb_24xx *)ha->init_cb;
4030 	icb->request_q_outpointer = cpu_to_le16(0);
4031 	icb->response_q_inpointer = cpu_to_le16(0);
4032 	icb->request_q_length = cpu_to_le16(req->length);
4033 	icb->response_q_length = cpu_to_le16(rsp->length);
4034 	put_unaligned_le64(req->dma, &icb->request_q_address);
4035 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
4036 
4037 	/* Setup ATIO queue dma pointers for target mode */
4038 	icb->atio_q_inpointer = cpu_to_le16(0);
4039 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
4040 	put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
4041 
4042 	if (IS_SHADOW_REG_CAPABLE(ha))
4043 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
4044 
4045 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4046 	    IS_QLA28XX(ha)) {
4047 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
4048 		icb->rid = cpu_to_le16(rid);
4049 		if (ha->flags.msix_enabled) {
4050 			msix = &ha->msix_entries[1];
4051 			ql_dbg(ql_dbg_init, vha, 0x0019,
4052 			    "Registering vector 0x%x for base que.\n",
4053 			    msix->entry);
4054 			icb->msix = cpu_to_le16(msix->entry);
4055 		}
4056 		/* Use alternate PCI bus number */
4057 		if (MSB(rid))
4058 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
4059 		/* Use alternate PCI devfn */
4060 		if (LSB(rid))
4061 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
4062 
4063 		/* Use Disable MSIX Handshake mode for capable adapters */
4064 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
4065 		    (ha->flags.msix_enabled)) {
4066 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
4067 			ha->flags.disable_msix_handshake = 1;
4068 			ql_dbg(ql_dbg_init, vha, 0x00fe,
4069 			    "MSIX Handshake Disable Mode turned on.\n");
4070 		} else {
4071 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
4072 		}
4073 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
4074 
4075 		WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
4076 		WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
4077 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
4078 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
4079 	} else {
4080 		WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
4081 		WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
4082 		WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
4083 		WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
4084 	}
4085 
4086 	qlt_24xx_config_rings(vha);
4087 
4088 	/* If the user has configured the speed, set it here */
4089 	if (ha->set_data_rate) {
4090 		ql_dbg(ql_dbg_init, vha, 0x00fd,
4091 		    "Speed set by user : %s Gbps \n",
4092 		    qla2x00_get_link_speed_str(ha, ha->set_data_rate));
4093 		icb->firmware_options_3 = (ha->set_data_rate << 13);
4094 	}
4095 
4096 	/* PCI posting */
4097 	RD_REG_DWORD(&ioreg->hccr);
4098 }
4099 
4100 /**
4101  * qla2x00_init_rings() - Initializes firmware.
4102  * @vha: HA context
4103  *
4104  * Beginning of request ring has initialization control block already built
4105  * by nvram config routine.
4106  *
4107  * Returns 0 on success.
4108  */
4109 int
4110 qla2x00_init_rings(scsi_qla_host_t *vha)
4111 {
4112 	int	rval;
4113 	unsigned long flags = 0;
4114 	int cnt, que;
4115 	struct qla_hw_data *ha = vha->hw;
4116 	struct req_que *req;
4117 	struct rsp_que *rsp;
4118 	struct mid_init_cb_24xx *mid_init_cb =
4119 	    (struct mid_init_cb_24xx *) ha->init_cb;
4120 
4121 	spin_lock_irqsave(&ha->hardware_lock, flags);
4122 
4123 	/* Clear outstanding commands array. */
4124 	for (que = 0; que < ha->max_req_queues; que++) {
4125 		req = ha->req_q_map[que];
4126 		if (!req || !test_bit(que, ha->req_qid_map))
4127 			continue;
4128 		req->out_ptr = (void *)(req->ring + req->length);
4129 		*req->out_ptr = 0;
4130 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
4131 			req->outstanding_cmds[cnt] = NULL;
4132 
4133 		req->current_outstanding_cmd = 1;
4134 
4135 		/* Initialize firmware. */
4136 		req->ring_ptr  = req->ring;
4137 		req->ring_index    = 0;
4138 		req->cnt      = req->length;
4139 	}
4140 
4141 	for (que = 0; que < ha->max_rsp_queues; que++) {
4142 		rsp = ha->rsp_q_map[que];
4143 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
4144 			continue;
4145 		rsp->in_ptr = (void *)(rsp->ring + rsp->length);
4146 		*rsp->in_ptr = 0;
4147 		/* Initialize response queue entries */
4148 		if (IS_QLAFX00(ha))
4149 			qlafx00_init_response_q_entries(rsp);
4150 		else
4151 			qla2x00_init_response_q_entries(rsp);
4152 	}
4153 
4154 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
4155 	ha->tgt.atio_ring_index = 0;
4156 	/* Initialize ATIO queue entries */
4157 	qlt_init_atio_q_entries(vha);
4158 
4159 	ha->isp_ops->config_rings(vha);
4160 
4161 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4162 
4163 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
4164 
4165 	if (IS_QLAFX00(ha)) {
4166 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
4167 		goto next_check;
4168 	}
4169 
4170 	/* Update any ISP specific firmware options before initialization. */
4171 	ha->isp_ops->update_fw_options(vha);
4172 
4173 	if (ha->flags.npiv_supported) {
4174 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
4175 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
4176 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
4177 	}
4178 
4179 	if (IS_FWI2_CAPABLE(ha)) {
4180 		mid_init_cb->options = cpu_to_le16(BIT_1);
4181 		mid_init_cb->init_cb.execution_throttle =
4182 		    cpu_to_le16(ha->cur_fw_xcb_count);
4183 		ha->flags.dport_enabled =
4184 		    (mid_init_cb->init_cb.firmware_options_1 & BIT_7) != 0;
4185 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
4186 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
4187 		/* FA-WWPN Status */
4188 		ha->flags.fawwpn_enabled =
4189 		    (mid_init_cb->init_cb.firmware_options_1 & BIT_6) != 0;
4190 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
4191 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
4192 	}
4193 
4194 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
4195 next_check:
4196 	if (rval) {
4197 		ql_log(ql_log_fatal, vha, 0x00d2,
4198 		    "Init Firmware **** FAILED ****.\n");
4199 	} else {
4200 		ql_dbg(ql_dbg_init, vha, 0x00d3,
4201 		    "Init Firmware -- success.\n");
4202 		QLA_FW_STARTED(ha);
4203 		vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
4204 	}
4205 
4206 	return (rval);
4207 }
4208 
4209 /**
4210  * qla2x00_fw_ready() - Waits for firmware ready.
4211  * @vha: HA context
4212  *
4213  * Returns 0 on success.
4214  */
4215 static int
4216 qla2x00_fw_ready(scsi_qla_host_t *vha)
4217 {
4218 	int		rval;
4219 	unsigned long	wtime, mtime, cs84xx_time;
4220 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
4221 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
4222 	uint16_t	state[6];
4223 	struct qla_hw_data *ha = vha->hw;
4224 
4225 	if (IS_QLAFX00(vha->hw))
4226 		return qlafx00_fw_ready(vha);
4227 
4228 	rval = QLA_SUCCESS;
4229 
4230 	/* Time to wait for loop down */
4231 	if (IS_P3P_TYPE(ha))
4232 		min_wait = 30;
4233 	else
4234 		min_wait = 20;
4235 
4236 	/*
4237 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
4238 	 * our own processing.
4239 	 */
4240 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
4241 		wait_time = min_wait;
4242 	}
4243 
4244 	/* Min wait time if loop down */
4245 	mtime = jiffies + (min_wait * HZ);
4246 
4247 	/* wait time before firmware ready */
4248 	wtime = jiffies + (wait_time * HZ);
4249 
4250 	/* Wait for ISP to finish LIP */
4251 	if (!vha->flags.init_done)
4252 		ql_log(ql_log_info, vha, 0x801e,
4253 		    "Waiting for LIP to complete.\n");
4254 
4255 	do {
4256 		memset(state, -1, sizeof(state));
4257 		rval = qla2x00_get_firmware_state(vha, state);
4258 		if (rval == QLA_SUCCESS) {
4259 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
4260 				vha->device_flags &= ~DFLG_NO_CABLE;
4261 			}
4262 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
4263 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
4264 				    "fw_state=%x 84xx=%x.\n", state[0],
4265 				    state[2]);
4266 				if ((state[2] & FSTATE_LOGGED_IN) &&
4267 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
4268 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
4269 					    "Sending verify iocb.\n");
4270 
4271 					cs84xx_time = jiffies;
4272 					rval = qla84xx_init_chip(vha);
4273 					if (rval != QLA_SUCCESS) {
4274 						ql_log(ql_log_warn,
4275 						    vha, 0x8007,
4276 						    "Init chip failed.\n");
4277 						break;
4278 					}
4279 
4280 					/* Add time taken to initialize. */
4281 					cs84xx_time = jiffies - cs84xx_time;
4282 					wtime += cs84xx_time;
4283 					mtime += cs84xx_time;
4284 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
4285 					    "Increasing wait time by %ld. "
4286 					    "New time %ld.\n", cs84xx_time,
4287 					    wtime);
4288 				}
4289 			} else if (state[0] == FSTATE_READY) {
4290 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
4291 				    "F/W Ready - OK.\n");
4292 
4293 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
4294 				    &ha->login_timeout, &ha->r_a_tov);
4295 
4296 				rval = QLA_SUCCESS;
4297 				break;
4298 			}
4299 
4300 			rval = QLA_FUNCTION_FAILED;
4301 
4302 			if (atomic_read(&vha->loop_down_timer) &&
4303 			    state[0] != FSTATE_READY) {
4304 				/* Loop down. Timeout on min_wait for states
4305 				 * other than Wait for Login.
4306 				 */
4307 				if (time_after_eq(jiffies, mtime)) {
4308 					ql_log(ql_log_info, vha, 0x8038,
4309 					    "Cable is unplugged...\n");
4310 
4311 					vha->device_flags |= DFLG_NO_CABLE;
4312 					break;
4313 				}
4314 			}
4315 		} else {
4316 			/* Mailbox cmd failed. Timeout on min_wait. */
4317 			if (time_after_eq(jiffies, mtime) ||
4318 				ha->flags.isp82xx_fw_hung)
4319 				break;
4320 		}
4321 
4322 		if (time_after_eq(jiffies, wtime))
4323 			break;
4324 
4325 		/* Delay for a while */
4326 		msleep(500);
4327 	} while (1);
4328 
4329 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
4330 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
4331 	    state[1], state[2], state[3], state[4], state[5], jiffies);
4332 
4333 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
4334 		ql_log(ql_log_warn, vha, 0x803b,
4335 		    "Firmware ready **** FAILED ****.\n");
4336 	}
4337 
4338 	return (rval);
4339 }
4340 
4341 /*
4342 *  qla2x00_configure_hba
4343 *      Setup adapter context.
4344 *
4345 * Input:
4346 *      ha = adapter state pointer.
4347 *
4348 * Returns:
4349 *      0 = success
4350 *
4351 * Context:
4352 *      Kernel context.
4353 */
4354 static int
4355 qla2x00_configure_hba(scsi_qla_host_t *vha)
4356 {
4357 	int       rval;
4358 	uint16_t      loop_id;
4359 	uint16_t      topo;
4360 	uint16_t      sw_cap;
4361 	uint8_t       al_pa;
4362 	uint8_t       area;
4363 	uint8_t       domain;
4364 	char		connect_type[22];
4365 	struct qla_hw_data *ha = vha->hw;
4366 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4367 	port_id_t id;
4368 	unsigned long flags;
4369 
4370 	/* Get host addresses. */
4371 	rval = qla2x00_get_adapter_id(vha,
4372 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4373 	if (rval != QLA_SUCCESS) {
4374 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4375 		    IS_CNA_CAPABLE(ha) ||
4376 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4377 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4378 			    "Loop is in a transition state.\n");
4379 		} else {
4380 			ql_log(ql_log_warn, vha, 0x2009,
4381 			    "Unable to get host loop ID.\n");
4382 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4383 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4384 				ql_log(ql_log_warn, vha, 0x1151,
4385 				    "Doing link init.\n");
4386 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4387 					return rval;
4388 			}
4389 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4390 		}
4391 		return (rval);
4392 	}
4393 
4394 	if (topo == 4) {
4395 		ql_log(ql_log_info, vha, 0x200a,
4396 		    "Cannot get topology - retrying.\n");
4397 		return (QLA_FUNCTION_FAILED);
4398 	}
4399 
4400 	vha->loop_id = loop_id;
4401 
4402 	/* initialize */
4403 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4404 	ha->operating_mode = LOOP;
4405 	ha->switch_cap = 0;
4406 
4407 	switch (topo) {
4408 	case 0:
4409 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4410 		ha->current_topology = ISP_CFG_NL;
4411 		strcpy(connect_type, "(Loop)");
4412 		break;
4413 
4414 	case 1:
4415 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4416 		ha->switch_cap = sw_cap;
4417 		ha->current_topology = ISP_CFG_FL;
4418 		strcpy(connect_type, "(FL_Port)");
4419 		break;
4420 
4421 	case 2:
4422 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4423 		ha->operating_mode = P2P;
4424 		ha->current_topology = ISP_CFG_N;
4425 		strcpy(connect_type, "(N_Port-to-N_Port)");
4426 		break;
4427 
4428 	case 3:
4429 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4430 		ha->switch_cap = sw_cap;
4431 		ha->operating_mode = P2P;
4432 		ha->current_topology = ISP_CFG_F;
4433 		strcpy(connect_type, "(F_Port)");
4434 		break;
4435 
4436 	default:
4437 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4438 		    "HBA in unknown topology %x, using NL.\n", topo);
4439 		ha->current_topology = ISP_CFG_NL;
4440 		strcpy(connect_type, "(Loop)");
4441 		break;
4442 	}
4443 
4444 	/* Save Host port and loop ID. */
4445 	/* byte order - Big Endian */
4446 	id.b.domain = domain;
4447 	id.b.area = area;
4448 	id.b.al_pa = al_pa;
4449 	id.b.rsvd_1 = 0;
4450 	spin_lock_irqsave(&ha->hardware_lock, flags);
4451 	if (!(topo == 2 && ha->flags.n2n_bigger))
4452 		qlt_update_host_map(vha, id);
4453 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4454 
4455 	if (!vha->flags.init_done)
4456 		ql_log(ql_log_info, vha, 0x2010,
4457 		    "Topology - %s, Host Loop address 0x%x.\n",
4458 		    connect_type, vha->loop_id);
4459 
4460 	return(rval);
4461 }
4462 
4463 inline void
4464 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4465 		       const char *def)
4466 {
4467 	char *st, *en;
4468 	uint16_t index;
4469 	uint64_t zero[2] = { 0 };
4470 	struct qla_hw_data *ha = vha->hw;
4471 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4472 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4473 
4474 	if (len > sizeof(zero))
4475 		len = sizeof(zero);
4476 	if (memcmp(model, &zero, len) != 0) {
4477 		memcpy(ha->model_number, model, len);
4478 		st = en = ha->model_number;
4479 		en += len - 1;
4480 		while (en > st) {
4481 			if (*en != 0x20 && *en != 0x00)
4482 				break;
4483 			*en-- = '\0';
4484 		}
4485 
4486 		index = (ha->pdev->subsystem_device & 0xff);
4487 		if (use_tbl &&
4488 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4489 		    index < QLA_MODEL_NAMES)
4490 			strlcpy(ha->model_desc,
4491 			    qla2x00_model_name[index * 2 + 1],
4492 			    sizeof(ha->model_desc));
4493 	} else {
4494 		index = (ha->pdev->subsystem_device & 0xff);
4495 		if (use_tbl &&
4496 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4497 		    index < QLA_MODEL_NAMES) {
4498 			strlcpy(ha->model_number,
4499 				qla2x00_model_name[index * 2],
4500 				sizeof(ha->model_number));
4501 			strlcpy(ha->model_desc,
4502 			    qla2x00_model_name[index * 2 + 1],
4503 			    sizeof(ha->model_desc));
4504 		} else {
4505 			strlcpy(ha->model_number, def,
4506 				sizeof(ha->model_number));
4507 		}
4508 	}
4509 	if (IS_FWI2_CAPABLE(ha))
4510 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4511 		    sizeof(ha->model_desc));
4512 }
4513 
4514 /* On sparc systems, obtain port and node WWN from firmware
4515  * properties.
4516  */
4517 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4518 {
4519 #ifdef CONFIG_SPARC
4520 	struct qla_hw_data *ha = vha->hw;
4521 	struct pci_dev *pdev = ha->pdev;
4522 	struct device_node *dp = pci_device_to_OF_node(pdev);
4523 	const u8 *val;
4524 	int len;
4525 
4526 	val = of_get_property(dp, "port-wwn", &len);
4527 	if (val && len >= WWN_SIZE)
4528 		memcpy(nv->port_name, val, WWN_SIZE);
4529 
4530 	val = of_get_property(dp, "node-wwn", &len);
4531 	if (val && len >= WWN_SIZE)
4532 		memcpy(nv->node_name, val, WWN_SIZE);
4533 #endif
4534 }
4535 
4536 /*
4537 * NVRAM configuration for ISP 2xxx
4538 *
4539 * Input:
4540 *      ha                = adapter block pointer.
4541 *
4542 * Output:
4543 *      initialization control block in response_ring
4544 *      host adapters parameters in host adapter block
4545 *
4546 * Returns:
4547 *      0 = success.
4548 */
4549 int
4550 qla2x00_nvram_config(scsi_qla_host_t *vha)
4551 {
4552 	int             rval;
4553 	uint8_t         chksum = 0;
4554 	uint16_t        cnt;
4555 	uint8_t         *dptr1, *dptr2;
4556 	struct qla_hw_data *ha = vha->hw;
4557 	init_cb_t       *icb = ha->init_cb;
4558 	nvram_t         *nv = ha->nvram;
4559 	uint8_t         *ptr = ha->nvram;
4560 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4561 
4562 	rval = QLA_SUCCESS;
4563 
4564 	/* Determine NVRAM starting address. */
4565 	ha->nvram_size = sizeof(*nv);
4566 	ha->nvram_base = 0;
4567 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4568 		if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
4569 			ha->nvram_base = 0x80;
4570 
4571 	/* Get NVRAM data and calculate checksum. */
4572 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4573 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4574 		chksum += *ptr++;
4575 
4576 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4577 	    "Contents of NVRAM.\n");
4578 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4579 	    nv, ha->nvram_size);
4580 
4581 	/* Bad NVRAM data, set defaults parameters. */
4582 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
4583 	    nv->nvram_version < 1) {
4584 		/* Reset NVRAM data. */
4585 		ql_log(ql_log_warn, vha, 0x0064,
4586 		    "Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
4587 		    chksum, nv->id, nv->nvram_version);
4588 		ql_log(ql_log_warn, vha, 0x0065,
4589 		    "Falling back to "
4590 		    "functioning (yet invalid -- WWPN) defaults.\n");
4591 
4592 		/*
4593 		 * Set default initialization control block.
4594 		 */
4595 		memset(nv, 0, ha->nvram_size);
4596 		nv->parameter_block_version = ICB_VERSION;
4597 
4598 		if (IS_QLA23XX(ha)) {
4599 			nv->firmware_options[0] = BIT_2 | BIT_1;
4600 			nv->firmware_options[1] = BIT_7 | BIT_5;
4601 			nv->add_firmware_options[0] = BIT_5;
4602 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4603 			nv->frame_payload_size = 2048;
4604 			nv->special_options[1] = BIT_7;
4605 		} else if (IS_QLA2200(ha)) {
4606 			nv->firmware_options[0] = BIT_2 | BIT_1;
4607 			nv->firmware_options[1] = BIT_7 | BIT_5;
4608 			nv->add_firmware_options[0] = BIT_5;
4609 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4610 			nv->frame_payload_size = 1024;
4611 		} else if (IS_QLA2100(ha)) {
4612 			nv->firmware_options[0] = BIT_3 | BIT_1;
4613 			nv->firmware_options[1] = BIT_5;
4614 			nv->frame_payload_size = 1024;
4615 		}
4616 
4617 		nv->max_iocb_allocation = cpu_to_le16(256);
4618 		nv->execution_throttle = cpu_to_le16(16);
4619 		nv->retry_count = 8;
4620 		nv->retry_delay = 1;
4621 
4622 		nv->port_name[0] = 33;
4623 		nv->port_name[3] = 224;
4624 		nv->port_name[4] = 139;
4625 
4626 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
4627 
4628 		nv->login_timeout = 4;
4629 
4630 		/*
4631 		 * Set default host adapter parameters
4632 		 */
4633 		nv->host_p[1] = BIT_2;
4634 		nv->reset_delay = 5;
4635 		nv->port_down_retry_count = 8;
4636 		nv->max_luns_per_target = cpu_to_le16(8);
4637 		nv->link_down_timeout = 60;
4638 
4639 		rval = 1;
4640 	}
4641 
4642 	/* Reset Initialization control block */
4643 	memset(icb, 0, ha->init_cb_size);
4644 
4645 	/*
4646 	 * Setup driver NVRAM options.
4647 	 */
4648 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
4649 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
4650 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
4651 	nv->firmware_options[1] &= ~BIT_4;
4652 
4653 	if (IS_QLA23XX(ha)) {
4654 		nv->firmware_options[0] |= BIT_2;
4655 		nv->firmware_options[0] &= ~BIT_3;
4656 		nv->special_options[0] &= ~BIT_6;
4657 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
4658 
4659 		if (IS_QLA2300(ha)) {
4660 			if (ha->fb_rev == FPM_2310) {
4661 				strcpy(ha->model_number, "QLA2310");
4662 			} else {
4663 				strcpy(ha->model_number, "QLA2300");
4664 			}
4665 		} else {
4666 			qla2x00_set_model_info(vha, nv->model_number,
4667 			    sizeof(nv->model_number), "QLA23xx");
4668 		}
4669 	} else if (IS_QLA2200(ha)) {
4670 		nv->firmware_options[0] |= BIT_2;
4671 		/*
4672 		 * 'Point-to-point preferred, else loop' is not a safe
4673 		 * connection mode setting.
4674 		 */
4675 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
4676 		    (BIT_5 | BIT_4)) {
4677 			/* Force 'loop preferred, else point-to-point'. */
4678 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
4679 			nv->add_firmware_options[0] |= BIT_5;
4680 		}
4681 		strcpy(ha->model_number, "QLA22xx");
4682 	} else /*if (IS_QLA2100(ha))*/ {
4683 		strcpy(ha->model_number, "QLA2100");
4684 	}
4685 
4686 	/*
4687 	 * Copy over NVRAM RISC parameter block to initialization control block.
4688 	 */
4689 	dptr1 = (uint8_t *)icb;
4690 	dptr2 = (uint8_t *)&nv->parameter_block_version;
4691 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
4692 	while (cnt--)
4693 		*dptr1++ = *dptr2++;
4694 
4695 	/* Copy 2nd half. */
4696 	dptr1 = (uint8_t *)icb->add_firmware_options;
4697 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
4698 	while (cnt--)
4699 		*dptr1++ = *dptr2++;
4700 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
4701 	/* Use alternate WWN? */
4702 	if (nv->host_p[1] & BIT_7) {
4703 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4704 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4705 	}
4706 
4707 	/* Prepare nodename */
4708 	if ((icb->firmware_options[1] & BIT_6) == 0) {
4709 		/*
4710 		 * Firmware will apply the following mask if the nodename was
4711 		 * not provided.
4712 		 */
4713 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4714 		icb->node_name[0] &= 0xF0;
4715 	}
4716 
4717 	/*
4718 	 * Set host adapter parameters.
4719 	 */
4720 
4721 	/*
4722 	 * BIT_7 in the host-parameters section allows for modification to
4723 	 * internal driver logging.
4724 	 */
4725 	if (nv->host_p[0] & BIT_7)
4726 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
4727 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
4728 	/* Always load RISC code on non ISP2[12]00 chips. */
4729 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
4730 		ha->flags.disable_risc_code_load = 0;
4731 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
4732 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
4733 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
4734 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
4735 	ha->flags.disable_serdes = 0;
4736 
4737 	ha->operating_mode =
4738 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
4739 
4740 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
4741 	    sizeof(ha->fw_seriallink_options));
4742 
4743 	/* save HBA serial number */
4744 	ha->serial0 = icb->port_name[5];
4745 	ha->serial1 = icb->port_name[6];
4746 	ha->serial2 = icb->port_name[7];
4747 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4748 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4749 
4750 	icb->execution_throttle = cpu_to_le16(0xFFFF);
4751 
4752 	ha->retry_count = nv->retry_count;
4753 
4754 	/* Set minimum login_timeout to 4 seconds. */
4755 	if (nv->login_timeout != ql2xlogintimeout)
4756 		nv->login_timeout = ql2xlogintimeout;
4757 	if (nv->login_timeout < 4)
4758 		nv->login_timeout = 4;
4759 	ha->login_timeout = nv->login_timeout;
4760 
4761 	/* Set minimum RATOV to 100 tenths of a second. */
4762 	ha->r_a_tov = 100;
4763 
4764 	ha->loop_reset_delay = nv->reset_delay;
4765 
4766 	/* Link Down Timeout = 0:
4767 	 *
4768 	 * 	When Port Down timer expires we will start returning
4769 	 *	I/O's to OS with "DID_NO_CONNECT".
4770 	 *
4771 	 * Link Down Timeout != 0:
4772 	 *
4773 	 *	 The driver waits for the link to come up after link down
4774 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
4775 	 */
4776 	if (nv->link_down_timeout == 0) {
4777 		ha->loop_down_abort_time =
4778 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4779 	} else {
4780 		ha->link_down_timeout =	 nv->link_down_timeout;
4781 		ha->loop_down_abort_time =
4782 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
4783 	}
4784 
4785 	/*
4786 	 * Need enough time to try and get the port back.
4787 	 */
4788 	ha->port_down_retry_count = nv->port_down_retry_count;
4789 	if (qlport_down_retry)
4790 		ha->port_down_retry_count = qlport_down_retry;
4791 	/* Set login_retry_count */
4792 	ha->login_retry_count  = nv->retry_count;
4793 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
4794 	    ha->port_down_retry_count > 3)
4795 		ha->login_retry_count = ha->port_down_retry_count;
4796 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4797 		ha->login_retry_count = ha->port_down_retry_count;
4798 	if (ql2xloginretrycount)
4799 		ha->login_retry_count = ql2xloginretrycount;
4800 
4801 	icb->lun_enables = cpu_to_le16(0);
4802 	icb->command_resource_count = 0;
4803 	icb->immediate_notify_resource_count = 0;
4804 	icb->timeout = cpu_to_le16(0);
4805 
4806 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4807 		/* Enable RIO */
4808 		icb->firmware_options[0] &= ~BIT_3;
4809 		icb->add_firmware_options[0] &=
4810 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4811 		icb->add_firmware_options[0] |= BIT_2;
4812 		icb->response_accumulation_timer = 3;
4813 		icb->interrupt_delay_timer = 5;
4814 
4815 		vha->flags.process_response_queue = 1;
4816 	} else {
4817 		/* Enable ZIO. */
4818 		if (!vha->flags.init_done) {
4819 			ha->zio_mode = icb->add_firmware_options[0] &
4820 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4821 			ha->zio_timer = icb->interrupt_delay_timer ?
4822 			    icb->interrupt_delay_timer : 2;
4823 		}
4824 		icb->add_firmware_options[0] &=
4825 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4826 		vha->flags.process_response_queue = 0;
4827 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
4828 			ha->zio_mode = QLA_ZIO_MODE_6;
4829 
4830 			ql_log(ql_log_info, vha, 0x0068,
4831 			    "ZIO mode %d enabled; timer delay (%d us).\n",
4832 			    ha->zio_mode, ha->zio_timer * 100);
4833 
4834 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
4835 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
4836 			vha->flags.process_response_queue = 1;
4837 		}
4838 	}
4839 
4840 	if (rval) {
4841 		ql_log(ql_log_warn, vha, 0x0069,
4842 		    "NVRAM configuration failed.\n");
4843 	}
4844 	return (rval);
4845 }
4846 
4847 static void
4848 qla2x00_rport_del(void *data)
4849 {
4850 	fc_port_t *fcport = data;
4851 	struct fc_rport *rport;
4852 	unsigned long flags;
4853 
4854 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
4855 	rport = fcport->drport ? fcport->drport : fcport->rport;
4856 	fcport->drport = NULL;
4857 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
4858 	if (rport) {
4859 		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
4860 		    "%s %8phN. rport %p roles %x\n",
4861 		    __func__, fcport->port_name, rport,
4862 		    rport->roles);
4863 
4864 		fc_remote_port_delete(rport);
4865 	}
4866 }
4867 
4868 void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
4869 {
4870 	int old_state;
4871 
4872 	old_state = atomic_read(&fcport->state);
4873 	atomic_set(&fcport->state, state);
4874 
4875 	/* Don't print state transitions during initial allocation of fcport */
4876 	if (old_state && old_state != state) {
4877 		ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
4878 		       "FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
4879 		       fcport->port_name, port_state_str[old_state],
4880 		       port_state_str[state], fcport->d_id.b.domain,
4881 		       fcport->d_id.b.area, fcport->d_id.b.al_pa);
4882 	}
4883 }
4884 
4885 /**
4886  * qla2x00_alloc_fcport() - Allocate a generic fcport.
4887  * @vha: HA context
4888  * @flags: allocation flags
4889  *
4890  * Returns a pointer to the allocated fcport, or NULL, if none available.
4891  */
4892 fc_port_t *
4893 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
4894 {
4895 	fc_port_t *fcport;
4896 
4897 	fcport = kzalloc(sizeof(fc_port_t), flags);
4898 	if (!fcport)
4899 		return NULL;
4900 
4901 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
4902 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
4903 		flags);
4904 	if (!fcport->ct_desc.ct_sns) {
4905 		ql_log(ql_log_warn, vha, 0xd049,
4906 		    "Failed to allocate ct_sns request.\n");
4907 		kfree(fcport);
4908 		return NULL;
4909 	}
4910 
4911 	/* Setup fcport template structure. */
4912 	fcport->vha = vha;
4913 	fcport->port_type = FCT_UNKNOWN;
4914 	fcport->loop_id = FC_NO_LOOP_ID;
4915 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
4916 	fcport->supported_classes = FC_COS_UNSPECIFIED;
4917 	fcport->fp_speed = PORT_SPEED_UNKNOWN;
4918 
4919 	fcport->disc_state = DSC_DELETED;
4920 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
4921 	fcport->deleted = QLA_SESS_DELETED;
4922 	fcport->login_retry = vha->hw->login_retry_count;
4923 	fcport->chip_reset = vha->hw->base_qpair->chip_reset;
4924 	fcport->logout_on_delete = 1;
4925 
4926 	if (!fcport->ct_desc.ct_sns) {
4927 		ql_log(ql_log_warn, vha, 0xd049,
4928 		    "Failed to allocate ct_sns request.\n");
4929 		kfree(fcport);
4930 		return NULL;
4931 	}
4932 
4933 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
4934 	INIT_WORK(&fcport->free_work, qlt_free_session_done);
4935 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
4936 	INIT_LIST_HEAD(&fcport->gnl_entry);
4937 	INIT_LIST_HEAD(&fcport->list);
4938 
4939 	return fcport;
4940 }
4941 
4942 void
4943 qla2x00_free_fcport(fc_port_t *fcport)
4944 {
4945 	if (fcport->ct_desc.ct_sns) {
4946 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
4947 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
4948 			fcport->ct_desc.ct_sns_dma);
4949 
4950 		fcport->ct_desc.ct_sns = NULL;
4951 	}
4952 	list_del(&fcport->list);
4953 	qla2x00_clear_loop_id(fcport);
4954 	kfree(fcport);
4955 }
4956 
4957 /*
4958  * qla2x00_configure_loop
4959  *      Updates Fibre Channel Device Database with what is actually on loop.
4960  *
4961  * Input:
4962  *      ha                = adapter block pointer.
4963  *
4964  * Returns:
4965  *      0 = success.
4966  *      1 = error.
4967  *      2 = database was full and device was not configured.
4968  */
4969 static int
4970 qla2x00_configure_loop(scsi_qla_host_t *vha)
4971 {
4972 	int  rval;
4973 	unsigned long flags, save_flags;
4974 	struct qla_hw_data *ha = vha->hw;
4975 
4976 	rval = QLA_SUCCESS;
4977 
4978 	/* Get Initiator ID */
4979 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
4980 		rval = qla2x00_configure_hba(vha);
4981 		if (rval != QLA_SUCCESS) {
4982 			ql_dbg(ql_dbg_disc, vha, 0x2013,
4983 			    "Unable to configure HBA.\n");
4984 			return (rval);
4985 		}
4986 	}
4987 
4988 	save_flags = flags = vha->dpc_flags;
4989 	ql_dbg(ql_dbg_disc, vha, 0x2014,
4990 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
4991 
4992 	/*
4993 	 * If we have both an RSCN and PORT UPDATE pending then handle them
4994 	 * both at the same time.
4995 	 */
4996 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
4997 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
4998 
4999 	qla2x00_get_data_rate(vha);
5000 
5001 	/* Determine what we need to do */
5002 	if ((ha->current_topology == ISP_CFG_FL ||
5003 	    ha->current_topology == ISP_CFG_F) &&
5004 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
5005 
5006 		set_bit(RSCN_UPDATE, &flags);
5007 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
5008 
5009 	} else if (ha->current_topology == ISP_CFG_NL ||
5010 		   ha->current_topology == ISP_CFG_N) {
5011 		clear_bit(RSCN_UPDATE, &flags);
5012 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5013 	} else if (!vha->flags.online ||
5014 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
5015 		set_bit(RSCN_UPDATE, &flags);
5016 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5017 	}
5018 
5019 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
5020 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5021 			ql_dbg(ql_dbg_disc, vha, 0x2015,
5022 			    "Loop resync needed, failing.\n");
5023 			rval = QLA_FUNCTION_FAILED;
5024 		} else
5025 			rval = qla2x00_configure_local_loop(vha);
5026 	}
5027 
5028 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
5029 		if (LOOP_TRANSITION(vha)) {
5030 			ql_dbg(ql_dbg_disc, vha, 0x2099,
5031 			    "Needs RSCN update and loop transition.\n");
5032 			rval = QLA_FUNCTION_FAILED;
5033 		}
5034 		else
5035 			rval = qla2x00_configure_fabric(vha);
5036 	}
5037 
5038 	if (rval == QLA_SUCCESS) {
5039 		if (atomic_read(&vha->loop_down_timer) ||
5040 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5041 			rval = QLA_FUNCTION_FAILED;
5042 		} else {
5043 			atomic_set(&vha->loop_state, LOOP_READY);
5044 			ql_dbg(ql_dbg_disc, vha, 0x2069,
5045 			    "LOOP READY.\n");
5046 			ha->flags.fw_init_done = 1;
5047 
5048 			/*
5049 			 * Process any ATIO queue entries that came in
5050 			 * while we weren't online.
5051 			 */
5052 			if (qla_tgt_mode_enabled(vha) ||
5053 			    qla_dual_mode_enabled(vha)) {
5054 				spin_lock_irqsave(&ha->tgt.atio_lock, flags);
5055 				qlt_24xx_process_atio_queue(vha, 0);
5056 				spin_unlock_irqrestore(&ha->tgt.atio_lock,
5057 				    flags);
5058 			}
5059 		}
5060 	}
5061 
5062 	if (rval) {
5063 		ql_dbg(ql_dbg_disc, vha, 0x206a,
5064 		    "%s *** FAILED ***.\n", __func__);
5065 	} else {
5066 		ql_dbg(ql_dbg_disc, vha, 0x206b,
5067 		    "%s: exiting normally.\n", __func__);
5068 	}
5069 
5070 	/* Restore state if a resync event occurred during processing */
5071 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5072 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
5073 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5074 		if (test_bit(RSCN_UPDATE, &save_flags)) {
5075 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
5076 		}
5077 	}
5078 
5079 	return (rval);
5080 }
5081 
5082 /*
5083  * qla2x00_configure_local_loop
5084  *	Updates Fibre Channel Device Database with local loop devices.
5085  *
5086  * Input:
5087  *	ha = adapter block pointer.
5088  *
5089  * Returns:
5090  *	0 = success.
5091  */
5092 static int
5093 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
5094 {
5095 	int		rval, rval2;
5096 	int		found_devs;
5097 	int		found;
5098 	fc_port_t	*fcport, *new_fcport;
5099 
5100 	uint16_t	index;
5101 	uint16_t	entries;
5102 	struct gid_list_info *gid;
5103 	uint16_t	loop_id;
5104 	uint8_t		domain, area, al_pa;
5105 	struct qla_hw_data *ha = vha->hw;
5106 	unsigned long flags;
5107 
5108 	/* Inititae N2N login. */
5109 	if (N2N_TOPO(ha)) {
5110 		if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) {
5111 			/* borrowing */
5112 			u32 *bp, sz;
5113 
5114 			memset(ha->init_cb, 0, ha->init_cb_size);
5115 			sz = min_t(int, sizeof(struct els_plogi_payload),
5116 			    ha->init_cb_size);
5117 			rval = qla24xx_get_port_login_templ(vha,
5118 			    ha->init_cb_dma, (void *)ha->init_cb, sz);
5119 			if (rval == QLA_SUCCESS) {
5120 				__be32 *q = &ha->plogi_els_payld.data[0];
5121 
5122 				bp = (uint32_t *)ha->init_cb;
5123 				cpu_to_be32_array(q, bp, sz / 4);
5124 
5125 				memcpy(bp, q, sizeof(ha->plogi_els_payld.data));
5126 			} else {
5127 				ql_dbg(ql_dbg_init, vha, 0x00d1,
5128 				    "PLOGI ELS param read fail.\n");
5129 				goto skip_login;
5130 			}
5131 		}
5132 
5133 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5134 			if (fcport->n2n_flag) {
5135 				qla24xx_fcport_handle_login(vha, fcport);
5136 				return QLA_SUCCESS;
5137 			}
5138 		}
5139 skip_login:
5140 		spin_lock_irqsave(&vha->work_lock, flags);
5141 		vha->scan.scan_retry++;
5142 		spin_unlock_irqrestore(&vha->work_lock, flags);
5143 
5144 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5145 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5146 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5147 		}
5148 		return QLA_FUNCTION_FAILED;
5149 	}
5150 
5151 	found_devs = 0;
5152 	new_fcport = NULL;
5153 	entries = MAX_FIBRE_DEVICES_LOOP;
5154 
5155 	/* Get list of logged in devices. */
5156 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
5157 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
5158 	    &entries);
5159 	if (rval != QLA_SUCCESS)
5160 		goto err;
5161 
5162 	ql_dbg(ql_dbg_disc, vha, 0x2011,
5163 	    "Entries in ID list (%d).\n", entries);
5164 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
5165 	    ha->gid_list, entries * sizeof(*ha->gid_list));
5166 
5167 	if (entries == 0) {
5168 		spin_lock_irqsave(&vha->work_lock, flags);
5169 		vha->scan.scan_retry++;
5170 		spin_unlock_irqrestore(&vha->work_lock, flags);
5171 
5172 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5173 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5174 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5175 		}
5176 	} else {
5177 		vha->scan.scan_retry = 0;
5178 	}
5179 
5180 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5181 		fcport->scan_state = QLA_FCPORT_SCAN;
5182 	}
5183 
5184 	/* Allocate temporary fcport for any new fcports discovered. */
5185 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5186 	if (new_fcport == NULL) {
5187 		ql_log(ql_log_warn, vha, 0x2012,
5188 		    "Memory allocation failed for fcport.\n");
5189 		rval = QLA_MEMORY_ALLOC_FAILED;
5190 		goto err;
5191 	}
5192 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5193 
5194 	/* Add devices to port list. */
5195 	gid = ha->gid_list;
5196 	for (index = 0; index < entries; index++) {
5197 		domain = gid->domain;
5198 		area = gid->area;
5199 		al_pa = gid->al_pa;
5200 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
5201 			loop_id = gid->loop_id_2100;
5202 		else
5203 			loop_id = le16_to_cpu(gid->loop_id);
5204 		gid = (void *)gid + ha->gid_list_info_size;
5205 
5206 		/* Bypass reserved domain fields. */
5207 		if ((domain & 0xf0) == 0xf0)
5208 			continue;
5209 
5210 		/* Bypass if not same domain and area of adapter. */
5211 		if (area && domain && ((area != vha->d_id.b.area) ||
5212 		    (domain != vha->d_id.b.domain)) &&
5213 		    (ha->current_topology == ISP_CFG_NL))
5214 			continue;
5215 
5216 
5217 		/* Bypass invalid local loop ID. */
5218 		if (loop_id > LAST_LOCAL_LOOP_ID)
5219 			continue;
5220 
5221 		memset(new_fcport->port_name, 0, WWN_SIZE);
5222 
5223 		/* Fill in member data. */
5224 		new_fcport->d_id.b.domain = domain;
5225 		new_fcport->d_id.b.area = area;
5226 		new_fcport->d_id.b.al_pa = al_pa;
5227 		new_fcport->loop_id = loop_id;
5228 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5229 
5230 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
5231 		if (rval2 != QLA_SUCCESS) {
5232 			ql_dbg(ql_dbg_disc, vha, 0x2097,
5233 			    "Failed to retrieve fcport information "
5234 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
5235 			    rval2, new_fcport->loop_id);
5236 			/* Skip retry if N2N */
5237 			if (ha->current_topology != ISP_CFG_N) {
5238 				ql_dbg(ql_dbg_disc, vha, 0x2105,
5239 				    "Scheduling resync.\n");
5240 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5241 				continue;
5242 			}
5243 		}
5244 
5245 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5246 		/* Check for matching device in port list. */
5247 		found = 0;
5248 		fcport = NULL;
5249 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5250 			if (memcmp(new_fcport->port_name, fcport->port_name,
5251 			    WWN_SIZE))
5252 				continue;
5253 
5254 			fcport->flags &= ~FCF_FABRIC_DEVICE;
5255 			fcport->loop_id = new_fcport->loop_id;
5256 			fcport->port_type = new_fcport->port_type;
5257 			fcport->d_id.b24 = new_fcport->d_id.b24;
5258 			memcpy(fcport->node_name, new_fcport->node_name,
5259 			    WWN_SIZE);
5260 			fcport->scan_state = QLA_FCPORT_FOUND;
5261 			found++;
5262 			break;
5263 		}
5264 
5265 		if (!found) {
5266 			/* New device, add to fcports list. */
5267 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
5268 
5269 			/* Allocate a new replacement fcport. */
5270 			fcport = new_fcport;
5271 
5272 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5273 
5274 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5275 
5276 			if (new_fcport == NULL) {
5277 				ql_log(ql_log_warn, vha, 0xd031,
5278 				    "Failed to allocate memory for fcport.\n");
5279 				rval = QLA_MEMORY_ALLOC_FAILED;
5280 				goto err;
5281 			}
5282 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5283 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5284 		}
5285 
5286 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5287 
5288 		/* Base iIDMA settings on HBA port speed. */
5289 		fcport->fp_speed = ha->link_data_rate;
5290 
5291 		found_devs++;
5292 	}
5293 
5294 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5295 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5296 			break;
5297 
5298 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5299 			if ((qla_dual_mode_enabled(vha) ||
5300 			    qla_ini_mode_enabled(vha)) &&
5301 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5302 				qla2x00_mark_device_lost(vha, fcport,
5303 					ql2xplogiabsentdevice);
5304 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5305 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5306 				    fcport->port_type != FCT_INITIATOR &&
5307 				    fcport->port_type != FCT_BROADCAST) {
5308 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5309 					    "%s %d %8phC post del sess\n",
5310 					    __func__, __LINE__,
5311 					    fcport->port_name);
5312 
5313 					qlt_schedule_sess_for_deletion(fcport);
5314 					continue;
5315 				}
5316 			}
5317 		}
5318 
5319 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5320 			qla24xx_fcport_handle_login(vha, fcport);
5321 	}
5322 
5323 	qla2x00_free_fcport(new_fcport);
5324 
5325 	return rval;
5326 
5327 err:
5328 	ql_dbg(ql_dbg_disc, vha, 0x2098,
5329 	       "Configure local loop error exit: rval=%x.\n", rval);
5330 	return rval;
5331 }
5332 
5333 static void
5334 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5335 {
5336 	int rval;
5337 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5338 	struct qla_hw_data *ha = vha->hw;
5339 
5340 	if (!IS_IIDMA_CAPABLE(ha))
5341 		return;
5342 
5343 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5344 		return;
5345 
5346 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5347 	    fcport->fp_speed > ha->link_data_rate ||
5348 	    !ha->flags.gpsc_supported)
5349 		return;
5350 
5351 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5352 	    mb);
5353 	if (rval != QLA_SUCCESS) {
5354 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5355 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5356 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5357 	} else {
5358 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5359 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5360 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5361 		    fcport->fp_speed, fcport->port_name);
5362 	}
5363 }
5364 
5365 void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5366 {
5367 	qla2x00_iidma_fcport(vha, fcport);
5368 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5369 }
5370 
5371 int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5372 {
5373 	struct qla_work_evt *e;
5374 
5375 	e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
5376 	if (!e)
5377 		return QLA_FUNCTION_FAILED;
5378 
5379 	e->u.fcport.fcport = fcport;
5380 	return qla2x00_post_work(vha, e);
5381 }
5382 
5383 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5384 static void
5385 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5386 {
5387 	struct fc_rport_identifiers rport_ids;
5388 	struct fc_rport *rport;
5389 	unsigned long flags;
5390 
5391 	if (atomic_read(&fcport->state) == FCS_ONLINE)
5392 		return;
5393 
5394 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5395 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5396 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5397 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5398 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5399 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5400 	if (!rport) {
5401 		ql_log(ql_log_warn, vha, 0x2006,
5402 		    "Unable to allocate fc remote port.\n");
5403 		return;
5404 	}
5405 
5406 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5407 	*((fc_port_t **)rport->dd_data) = fcport;
5408 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5409 
5410 	rport->supported_classes = fcport->supported_classes;
5411 
5412 	rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
5413 	if (fcport->port_type == FCT_INITIATOR)
5414 		rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
5415 	if (fcport->port_type == FCT_TARGET)
5416 		rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
5417 	if (fcport->port_type & FCT_NVME_INITIATOR)
5418 		rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
5419 	if (fcport->port_type & FCT_NVME_TARGET)
5420 		rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
5421 	if (fcport->port_type & FCT_NVME_DISCOVERY)
5422 		rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
5423 
5424 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5425 	    "%s %8phN. rport %p is %s mode\n",
5426 	    __func__, fcport->port_name, rport,
5427 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
5428 	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
5429 
5430 	fc_remote_port_rolechg(rport, rport_ids.roles);
5431 }
5432 
5433 /*
5434  * qla2x00_update_fcport
5435  *	Updates device on list.
5436  *
5437  * Input:
5438  *	ha = adapter block pointer.
5439  *	fcport = port structure pointer.
5440  *
5441  * Return:
5442  *	0  - Success
5443  *  BIT_0 - error
5444  *
5445  * Context:
5446  *	Kernel context.
5447  */
5448 void
5449 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5450 {
5451 	if (IS_SW_RESV_ADDR(fcport->d_id))
5452 		return;
5453 
5454 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5455 	    __func__, fcport->port_name);
5456 
5457 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5458 	fcport->login_retry = vha->hw->login_retry_count;
5459 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5460 	fcport->deleted = 0;
5461 	if (vha->hw->current_topology == ISP_CFG_NL)
5462 		fcport->logout_on_delete = 0;
5463 	else
5464 		fcport->logout_on_delete = 1;
5465 	fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
5466 
5467 	switch (vha->hw->current_topology) {
5468 	case ISP_CFG_N:
5469 	case ISP_CFG_NL:
5470 		fcport->keep_nport_handle = 1;
5471 		break;
5472 	default:
5473 		break;
5474 	}
5475 
5476 	qla2x00_iidma_fcport(vha, fcport);
5477 
5478 	if (NVME_TARGET(vha->hw, fcport)) {
5479 		qla_nvme_register_remote(vha, fcport);
5480 		qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5481 		qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5482 		return;
5483 	}
5484 
5485 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5486 
5487 	switch (vha->host->active_mode) {
5488 	case MODE_INITIATOR:
5489 		qla2x00_reg_remote_port(vha, fcport);
5490 		break;
5491 	case MODE_TARGET:
5492 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5493 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5494 			qlt_fc_port_added(vha, fcport);
5495 		break;
5496 	case MODE_DUAL:
5497 		qla2x00_reg_remote_port(vha, fcport);
5498 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5499 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5500 			qlt_fc_port_added(vha, fcport);
5501 		break;
5502 	default:
5503 		break;
5504 	}
5505 
5506 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5507 
5508 	if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
5509 		if (fcport->id_changed) {
5510 			fcport->id_changed = 0;
5511 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5512 			    "%s %d %8phC post gfpnid fcp_cnt %d\n",
5513 			    __func__, __LINE__, fcport->port_name,
5514 			    vha->fcport_count);
5515 			qla24xx_post_gfpnid_work(vha, fcport);
5516 		} else {
5517 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5518 			    "%s %d %8phC post gpsc fcp_cnt %d\n",
5519 			    __func__, __LINE__, fcport->port_name,
5520 			    vha->fcport_count);
5521 			qla24xx_post_gpsc_work(vha, fcport);
5522 		}
5523 	}
5524 
5525 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5526 }
5527 
5528 void qla_register_fcport_fn(struct work_struct *work)
5529 {
5530 	fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
5531 	u32 rscn_gen = fcport->rscn_gen;
5532 	u16 data[2];
5533 
5534 	if (IS_SW_RESV_ADDR(fcport->d_id))
5535 		return;
5536 
5537 	qla2x00_update_fcport(fcport->vha, fcport);
5538 
5539 	if (rscn_gen != fcport->rscn_gen) {
5540 		/* RSCN(s) came in while registration */
5541 		switch (fcport->next_disc_state) {
5542 		case DSC_DELETE_PEND:
5543 			qlt_schedule_sess_for_deletion(fcport);
5544 			break;
5545 		case DSC_ADISC:
5546 			data[0] = data[1] = 0;
5547 			qla2x00_post_async_adisc_work(fcport->vha, fcport,
5548 			    data);
5549 			break;
5550 		default:
5551 			break;
5552 		}
5553 	}
5554 }
5555 
5556 /*
5557  * qla2x00_configure_fabric
5558  *      Setup SNS devices with loop ID's.
5559  *
5560  * Input:
5561  *      ha = adapter block pointer.
5562  *
5563  * Returns:
5564  *      0 = success.
5565  *      BIT_0 = error
5566  */
5567 static int
5568 qla2x00_configure_fabric(scsi_qla_host_t *vha)
5569 {
5570 	int	rval;
5571 	fc_port_t	*fcport;
5572 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5573 	uint16_t	loop_id;
5574 	LIST_HEAD(new_fcports);
5575 	struct qla_hw_data *ha = vha->hw;
5576 	int		discovery_gen;
5577 
5578 	/* If FL port exists, then SNS is present */
5579 	if (IS_FWI2_CAPABLE(ha))
5580 		loop_id = NPH_F_PORT;
5581 	else
5582 		loop_id = SNS_FL_PORT;
5583 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
5584 	if (rval != QLA_SUCCESS) {
5585 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
5586 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
5587 
5588 		vha->device_flags &= ~SWITCH_FOUND;
5589 		return (QLA_SUCCESS);
5590 	}
5591 	vha->device_flags |= SWITCH_FOUND;
5592 
5593 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_port_name, 0);
5594 	if (rval != QLA_SUCCESS)
5595 		ql_dbg(ql_dbg_disc, vha, 0x20ff,
5596 		    "Failed to get Fabric Port Name\n");
5597 
5598 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
5599 		rval = qla2x00_send_change_request(vha, 0x3, 0);
5600 		if (rval != QLA_SUCCESS)
5601 			ql_log(ql_log_warn, vha, 0x121,
5602 			    "Failed to enable receiving of RSCN requests: 0x%x.\n",
5603 			    rval);
5604 	}
5605 
5606 	do {
5607 		qla2x00_mgmt_svr_login(vha);
5608 
5609 		/* Ensure we are logged into the SNS. */
5610 		loop_id = NPH_SNS_LID(ha);
5611 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
5612 		    0xfc, mb, BIT_1|BIT_0);
5613 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5614 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
5615 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
5616 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
5617 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5618 			return rval;
5619 		}
5620 
5621 		/* FDMI support. */
5622 		if (ql2xfdmienable &&
5623 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
5624 			qla2x00_fdmi_register(vha);
5625 
5626 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
5627 			if (qla2x00_rft_id(vha)) {
5628 				/* EMPTY */
5629 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
5630 				    "Register FC-4 TYPE failed.\n");
5631 				if (test_bit(LOOP_RESYNC_NEEDED,
5632 				    &vha->dpc_flags))
5633 					break;
5634 			}
5635 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
5636 				/* EMPTY */
5637 				ql_dbg(ql_dbg_disc, vha, 0x209a,
5638 				    "Register FC-4 Features failed.\n");
5639 				if (test_bit(LOOP_RESYNC_NEEDED,
5640 				    &vha->dpc_flags))
5641 					break;
5642 			}
5643 			if (vha->flags.nvme_enabled) {
5644 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
5645 					ql_dbg(ql_dbg_disc, vha, 0x2049,
5646 					    "Register NVME FC Type Features failed.\n");
5647 				}
5648 			}
5649 			if (qla2x00_rnn_id(vha)) {
5650 				/* EMPTY */
5651 				ql_dbg(ql_dbg_disc, vha, 0x2104,
5652 				    "Register Node Name failed.\n");
5653 				if (test_bit(LOOP_RESYNC_NEEDED,
5654 				    &vha->dpc_flags))
5655 					break;
5656 			} else if (qla2x00_rsnn_nn(vha)) {
5657 				/* EMPTY */
5658 				ql_dbg(ql_dbg_disc, vha, 0x209b,
5659 				    "Register Symbolic Node Name failed.\n");
5660 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5661 					break;
5662 			}
5663 		}
5664 
5665 
5666 		/* Mark the time right before querying FW for connected ports.
5667 		 * This process is long, asynchronous and by the time it's done,
5668 		 * collected information might not be accurate anymore. E.g.
5669 		 * disconnected port might have re-connected and a brand new
5670 		 * session has been created. In this case session's generation
5671 		 * will be newer than discovery_gen. */
5672 		qlt_do_generation_tick(vha, &discovery_gen);
5673 
5674 		if (USE_ASYNC_SCAN(ha)) {
5675 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
5676 			    NULL);
5677 			if (rval)
5678 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5679 		} else  {
5680 			list_for_each_entry(fcport, &vha->vp_fcports, list)
5681 				fcport->scan_state = QLA_FCPORT_SCAN;
5682 
5683 			rval = qla2x00_find_all_fabric_devs(vha);
5684 		}
5685 		if (rval != QLA_SUCCESS)
5686 			break;
5687 	} while (0);
5688 
5689 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
5690 		qla_nvme_register_hba(vha);
5691 
5692 	if (rval)
5693 		ql_dbg(ql_dbg_disc, vha, 0x2068,
5694 		    "Configure fabric error exit rval=%d.\n", rval);
5695 
5696 	return (rval);
5697 }
5698 
5699 /*
5700  * qla2x00_find_all_fabric_devs
5701  *
5702  * Input:
5703  *	ha = adapter block pointer.
5704  *	dev = database device entry pointer.
5705  *
5706  * Returns:
5707  *	0 = success.
5708  *
5709  * Context:
5710  *	Kernel context.
5711  */
5712 static int
5713 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
5714 {
5715 	int		rval;
5716 	uint16_t	loop_id;
5717 	fc_port_t	*fcport, *new_fcport;
5718 	int		found;
5719 
5720 	sw_info_t	*swl;
5721 	int		swl_idx;
5722 	int		first_dev, last_dev;
5723 	port_id_t	wrap = {}, nxt_d_id;
5724 	struct qla_hw_data *ha = vha->hw;
5725 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5726 	unsigned long flags;
5727 
5728 	rval = QLA_SUCCESS;
5729 
5730 	/* Try GID_PT to get device list, else GAN. */
5731 	if (!ha->swl)
5732 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
5733 		    GFP_KERNEL);
5734 	swl = ha->swl;
5735 	if (!swl) {
5736 		/*EMPTY*/
5737 		ql_dbg(ql_dbg_disc, vha, 0x209c,
5738 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
5739 	} else {
5740 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
5741 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
5742 			swl = NULL;
5743 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5744 				return rval;
5745 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
5746 			swl = NULL;
5747 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5748 				return rval;
5749 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
5750 			swl = NULL;
5751 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5752 				return rval;
5753 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
5754 			swl = NULL;
5755 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5756 				return rval;
5757 		}
5758 
5759 		/* If other queries succeeded probe for FC-4 type */
5760 		if (swl) {
5761 			qla2x00_gff_id(vha, swl);
5762 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5763 				return rval;
5764 		}
5765 	}
5766 	swl_idx = 0;
5767 
5768 	/* Allocate temporary fcport for any new fcports discovered. */
5769 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5770 	if (new_fcport == NULL) {
5771 		ql_log(ql_log_warn, vha, 0x209d,
5772 		    "Failed to allocate memory for fcport.\n");
5773 		return (QLA_MEMORY_ALLOC_FAILED);
5774 	}
5775 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5776 	/* Set start port ID scan at adapter ID. */
5777 	first_dev = 1;
5778 	last_dev = 0;
5779 
5780 	/* Starting free loop ID. */
5781 	loop_id = ha->min_external_loopid;
5782 	for (; loop_id <= ha->max_loop_id; loop_id++) {
5783 		if (qla2x00_is_reserved_id(vha, loop_id))
5784 			continue;
5785 
5786 		if (ha->current_topology == ISP_CFG_FL &&
5787 		    (atomic_read(&vha->loop_down_timer) ||
5788 		     LOOP_TRANSITION(vha))) {
5789 			atomic_set(&vha->loop_down_timer, 0);
5790 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5791 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5792 			break;
5793 		}
5794 
5795 		if (swl != NULL) {
5796 			if (last_dev) {
5797 				wrap.b24 = new_fcport->d_id.b24;
5798 			} else {
5799 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
5800 				memcpy(new_fcport->node_name,
5801 				    swl[swl_idx].node_name, WWN_SIZE);
5802 				memcpy(new_fcport->port_name,
5803 				    swl[swl_idx].port_name, WWN_SIZE);
5804 				memcpy(new_fcport->fabric_port_name,
5805 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
5806 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
5807 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
5808 
5809 				new_fcport->nvme_flag = 0;
5810 				if (vha->flags.nvme_enabled &&
5811 				    swl[swl_idx].fc4_type & FS_FC4TYPE_NVME) {
5812 					ql_log(ql_log_info, vha, 0x2131,
5813 					    "FOUND: NVME port %8phC as FC Type 28h\n",
5814 					    new_fcport->port_name);
5815 				}
5816 
5817 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
5818 					last_dev = 1;
5819 				}
5820 				swl_idx++;
5821 			}
5822 		} else {
5823 			/* Send GA_NXT to the switch */
5824 			rval = qla2x00_ga_nxt(vha, new_fcport);
5825 			if (rval != QLA_SUCCESS) {
5826 				ql_log(ql_log_warn, vha, 0x209e,
5827 				    "SNS scan failed -- assuming "
5828 				    "zero-entry result.\n");
5829 				rval = QLA_SUCCESS;
5830 				break;
5831 			}
5832 		}
5833 
5834 		/* If wrap on switch device list, exit. */
5835 		if (first_dev) {
5836 			wrap.b24 = new_fcport->d_id.b24;
5837 			first_dev = 0;
5838 		} else if (new_fcport->d_id.b24 == wrap.b24) {
5839 			ql_dbg(ql_dbg_disc, vha, 0x209f,
5840 			    "Device wrap (%02x%02x%02x).\n",
5841 			    new_fcport->d_id.b.domain,
5842 			    new_fcport->d_id.b.area,
5843 			    new_fcport->d_id.b.al_pa);
5844 			break;
5845 		}
5846 
5847 		/* Bypass if same physical adapter. */
5848 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
5849 			continue;
5850 
5851 		/* Bypass virtual ports of the same host. */
5852 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
5853 			continue;
5854 
5855 		/* Bypass if same domain and area of adapter. */
5856 		if (((new_fcport->d_id.b24 & 0xffff00) ==
5857 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
5858 			ISP_CFG_FL)
5859 			    continue;
5860 
5861 		/* Bypass reserved domain fields. */
5862 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
5863 			continue;
5864 
5865 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
5866 		if (ql2xgffidenable &&
5867 		    (!(new_fcport->fc4_type & FS_FC4TYPE_FCP) &&
5868 		    new_fcport->fc4_type != 0))
5869 			continue;
5870 
5871 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5872 
5873 		/* Locate matching device in database. */
5874 		found = 0;
5875 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5876 			if (memcmp(new_fcport->port_name, fcport->port_name,
5877 			    WWN_SIZE))
5878 				continue;
5879 
5880 			fcport->scan_state = QLA_FCPORT_FOUND;
5881 
5882 			found++;
5883 
5884 			/* Update port state. */
5885 			memcpy(fcport->fabric_port_name,
5886 			    new_fcport->fabric_port_name, WWN_SIZE);
5887 			fcport->fp_speed = new_fcport->fp_speed;
5888 
5889 			/*
5890 			 * If address the same and state FCS_ONLINE
5891 			 * (or in target mode), nothing changed.
5892 			 */
5893 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
5894 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
5895 			     (vha->host->active_mode == MODE_TARGET))) {
5896 				break;
5897 			}
5898 
5899 			/*
5900 			 * If device was not a fabric device before.
5901 			 */
5902 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
5903 				fcport->d_id.b24 = new_fcport->d_id.b24;
5904 				qla2x00_clear_loop_id(fcport);
5905 				fcport->flags |= (FCF_FABRIC_DEVICE |
5906 				    FCF_LOGIN_NEEDED);
5907 				break;
5908 			}
5909 
5910 			/*
5911 			 * Port ID changed or device was marked to be updated;
5912 			 * Log it out if still logged in and mark it for
5913 			 * relogin later.
5914 			 */
5915 			if (qla_tgt_mode_enabled(base_vha)) {
5916 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
5917 					 "port changed FC ID, %8phC"
5918 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
5919 					 fcport->port_name,
5920 					 fcport->d_id.b.domain,
5921 					 fcport->d_id.b.area,
5922 					 fcport->d_id.b.al_pa,
5923 					 fcport->loop_id,
5924 					 new_fcport->d_id.b.domain,
5925 					 new_fcport->d_id.b.area,
5926 					 new_fcport->d_id.b.al_pa);
5927 				fcport->d_id.b24 = new_fcport->d_id.b24;
5928 				break;
5929 			}
5930 
5931 			fcport->d_id.b24 = new_fcport->d_id.b24;
5932 			fcport->flags |= FCF_LOGIN_NEEDED;
5933 			break;
5934 		}
5935 
5936 		if (NVME_TARGET(vha->hw, fcport)) {
5937 			if (fcport->disc_state == DSC_DELETE_PEND) {
5938 				qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
5939 				vha->fcport_count--;
5940 				fcport->login_succ = 0;
5941 			}
5942 		}
5943 
5944 		if (found) {
5945 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5946 			continue;
5947 		}
5948 		/* If device was not in our fcports list, then add it. */
5949 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5950 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
5951 
5952 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5953 
5954 
5955 		/* Allocate a new replacement fcport. */
5956 		nxt_d_id.b24 = new_fcport->d_id.b24;
5957 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5958 		if (new_fcport == NULL) {
5959 			ql_log(ql_log_warn, vha, 0xd032,
5960 			    "Memory allocation failed for fcport.\n");
5961 			return (QLA_MEMORY_ALLOC_FAILED);
5962 		}
5963 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5964 		new_fcport->d_id.b24 = nxt_d_id.b24;
5965 	}
5966 
5967 	qla2x00_free_fcport(new_fcport);
5968 
5969 	/*
5970 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
5971 	 */
5972 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5973 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5974 			break;
5975 
5976 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
5977 			continue;
5978 
5979 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5980 			if ((qla_dual_mode_enabled(vha) ||
5981 			    qla_ini_mode_enabled(vha)) &&
5982 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5983 				qla2x00_mark_device_lost(vha, fcport,
5984 					ql2xplogiabsentdevice);
5985 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5986 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5987 				    fcport->port_type != FCT_INITIATOR &&
5988 				    fcport->port_type != FCT_BROADCAST) {
5989 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5990 					    "%s %d %8phC post del sess\n",
5991 					    __func__, __LINE__,
5992 					    fcport->port_name);
5993 					qlt_schedule_sess_for_deletion(fcport);
5994 					continue;
5995 				}
5996 			}
5997 		}
5998 
5999 		if (fcport->scan_state == QLA_FCPORT_FOUND &&
6000 		    (fcport->flags & FCF_LOGIN_NEEDED) != 0)
6001 			qla24xx_fcport_handle_login(vha, fcport);
6002 	}
6003 	return (rval);
6004 }
6005 
6006 /* FW does not set aside Loop id for MGMT Server/FFFFFAh */
6007 int
6008 qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
6009 {
6010 	int loop_id = FC_NO_LOOP_ID;
6011 	int lid = NPH_MGMT_SERVER - vha->vp_idx;
6012 	unsigned long flags;
6013 	struct qla_hw_data *ha = vha->hw;
6014 
6015 	if (vha->vp_idx == 0) {
6016 		set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
6017 		return NPH_MGMT_SERVER;
6018 	}
6019 
6020 	/* pick id from high and work down to low */
6021 	spin_lock_irqsave(&ha->vport_slock, flags);
6022 	for (; lid > 0; lid--) {
6023 		if (!test_bit(lid, vha->hw->loop_id_map)) {
6024 			set_bit(lid, vha->hw->loop_id_map);
6025 			loop_id = lid;
6026 			break;
6027 		}
6028 	}
6029 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6030 
6031 	return loop_id;
6032 }
6033 
6034 /*
6035  * qla2x00_fabric_login
6036  *	Issue fabric login command.
6037  *
6038  * Input:
6039  *	ha = adapter block pointer.
6040  *	device = pointer to FC device type structure.
6041  *
6042  * Returns:
6043  *      0 - Login successfully
6044  *      1 - Login failed
6045  *      2 - Initiator device
6046  *      3 - Fatal error
6047  */
6048 int
6049 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
6050     uint16_t *next_loopid)
6051 {
6052 	int	rval;
6053 	int	retry;
6054 	uint16_t tmp_loopid;
6055 	uint16_t mb[MAILBOX_REGISTER_COUNT];
6056 	struct qla_hw_data *ha = vha->hw;
6057 
6058 	retry = 0;
6059 	tmp_loopid = 0;
6060 
6061 	for (;;) {
6062 		ql_dbg(ql_dbg_disc, vha, 0x2000,
6063 		    "Trying Fabric Login w/loop id 0x%04x for port "
6064 		    "%02x%02x%02x.\n",
6065 		    fcport->loop_id, fcport->d_id.b.domain,
6066 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6067 
6068 		/* Login fcport on switch. */
6069 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
6070 		    fcport->d_id.b.domain, fcport->d_id.b.area,
6071 		    fcport->d_id.b.al_pa, mb, BIT_0);
6072 		if (rval != QLA_SUCCESS) {
6073 			return rval;
6074 		}
6075 		if (mb[0] == MBS_PORT_ID_USED) {
6076 			/*
6077 			 * Device has another loop ID.  The firmware team
6078 			 * recommends the driver perform an implicit login with
6079 			 * the specified ID again. The ID we just used is save
6080 			 * here so we return with an ID that can be tried by
6081 			 * the next login.
6082 			 */
6083 			retry++;
6084 			tmp_loopid = fcport->loop_id;
6085 			fcport->loop_id = mb[1];
6086 
6087 			ql_dbg(ql_dbg_disc, vha, 0x2001,
6088 			    "Fabric Login: port in use - next loop "
6089 			    "id=0x%04x, port id= %02x%02x%02x.\n",
6090 			    fcport->loop_id, fcport->d_id.b.domain,
6091 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6092 
6093 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
6094 			/*
6095 			 * Login succeeded.
6096 			 */
6097 			if (retry) {
6098 				/* A retry occurred before. */
6099 				*next_loopid = tmp_loopid;
6100 			} else {
6101 				/*
6102 				 * No retry occurred before. Just increment the
6103 				 * ID value for next login.
6104 				 */
6105 				*next_loopid = (fcport->loop_id + 1);
6106 			}
6107 
6108 			if (mb[1] & BIT_0) {
6109 				fcport->port_type = FCT_INITIATOR;
6110 			} else {
6111 				fcport->port_type = FCT_TARGET;
6112 				if (mb[1] & BIT_1) {
6113 					fcport->flags |= FCF_FCP2_DEVICE;
6114 				}
6115 			}
6116 
6117 			if (mb[10] & BIT_0)
6118 				fcport->supported_classes |= FC_COS_CLASS2;
6119 			if (mb[10] & BIT_1)
6120 				fcport->supported_classes |= FC_COS_CLASS3;
6121 
6122 			if (IS_FWI2_CAPABLE(ha)) {
6123 				if (mb[10] & BIT_7)
6124 					fcport->flags |=
6125 					    FCF_CONF_COMP_SUPPORTED;
6126 			}
6127 
6128 			rval = QLA_SUCCESS;
6129 			break;
6130 		} else if (mb[0] == MBS_LOOP_ID_USED) {
6131 			/*
6132 			 * Loop ID already used, try next loop ID.
6133 			 */
6134 			fcport->loop_id++;
6135 			rval = qla2x00_find_new_loop_id(vha, fcport);
6136 			if (rval != QLA_SUCCESS) {
6137 				/* Ran out of loop IDs to use */
6138 				break;
6139 			}
6140 		} else if (mb[0] == MBS_COMMAND_ERROR) {
6141 			/*
6142 			 * Firmware possibly timed out during login. If NO
6143 			 * retries are left to do then the device is declared
6144 			 * dead.
6145 			 */
6146 			*next_loopid = fcport->loop_id;
6147 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6148 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6149 			    fcport->d_id.b.al_pa);
6150 			qla2x00_mark_device_lost(vha, fcport, 1);
6151 
6152 			rval = 1;
6153 			break;
6154 		} else {
6155 			/*
6156 			 * unrecoverable / not handled error
6157 			 */
6158 			ql_dbg(ql_dbg_disc, vha, 0x2002,
6159 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
6160 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
6161 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
6162 			    fcport->loop_id, jiffies);
6163 
6164 			*next_loopid = fcport->loop_id;
6165 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6166 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6167 			    fcport->d_id.b.al_pa);
6168 			qla2x00_clear_loop_id(fcport);
6169 			fcport->login_retry = 0;
6170 
6171 			rval = 3;
6172 			break;
6173 		}
6174 	}
6175 
6176 	return (rval);
6177 }
6178 
6179 /*
6180  * qla2x00_local_device_login
6181  *	Issue local device login command.
6182  *
6183  * Input:
6184  *	ha = adapter block pointer.
6185  *	loop_id = loop id of device to login to.
6186  *
6187  * Returns (Where's the #define!!!!):
6188  *      0 - Login successfully
6189  *      1 - Login failed
6190  *      3 - Fatal error
6191  */
6192 int
6193 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
6194 {
6195 	int		rval;
6196 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6197 
6198 	memset(mb, 0, sizeof(mb));
6199 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
6200 	if (rval == QLA_SUCCESS) {
6201 		/* Interrogate mailbox registers for any errors */
6202 		if (mb[0] == MBS_COMMAND_ERROR)
6203 			rval = 1;
6204 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
6205 			/* device not in PCB table */
6206 			rval = 3;
6207 	}
6208 
6209 	return (rval);
6210 }
6211 
6212 /*
6213  *  qla2x00_loop_resync
6214  *      Resync with fibre channel devices.
6215  *
6216  * Input:
6217  *      ha = adapter block pointer.
6218  *
6219  * Returns:
6220  *      0 = success
6221  */
6222 int
6223 qla2x00_loop_resync(scsi_qla_host_t *vha)
6224 {
6225 	int rval = QLA_SUCCESS;
6226 	uint32_t wait_time;
6227 
6228 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6229 	if (vha->flags.online) {
6230 		if (!(rval = qla2x00_fw_ready(vha))) {
6231 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
6232 			wait_time = 256;
6233 			do {
6234 				if (!IS_QLAFX00(vha->hw)) {
6235 					/*
6236 					 * Issue a marker after FW becomes
6237 					 * ready.
6238 					 */
6239 					qla2x00_marker(vha, vha->hw->base_qpair,
6240 					    0, 0, MK_SYNC_ALL);
6241 					vha->marker_needed = 0;
6242 				}
6243 
6244 				/* Remap devices on Loop. */
6245 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6246 
6247 				if (IS_QLAFX00(vha->hw))
6248 					qlafx00_configure_devices(vha);
6249 				else
6250 					qla2x00_configure_loop(vha);
6251 
6252 				wait_time--;
6253 			} while (!atomic_read(&vha->loop_down_timer) &&
6254 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6255 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
6256 				&vha->dpc_flags)));
6257 		}
6258 	}
6259 
6260 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6261 		return (QLA_FUNCTION_FAILED);
6262 
6263 	if (rval)
6264 		ql_dbg(ql_dbg_disc, vha, 0x206c,
6265 		    "%s *** FAILED ***.\n", __func__);
6266 
6267 	return (rval);
6268 }
6269 
6270 /*
6271 * qla2x00_perform_loop_resync
6272 * Description: This function will set the appropriate flags and call
6273 *              qla2x00_loop_resync. If successful loop will be resynced
6274 * Arguments : scsi_qla_host_t pointer
6275 * returm    : Success or Failure
6276 */
6277 
6278 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
6279 {
6280 	int32_t rval = 0;
6281 
6282 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
6283 		/*Configure the flags so that resync happens properly*/
6284 		atomic_set(&ha->loop_down_timer, 0);
6285 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
6286 			atomic_set(&ha->loop_state, LOOP_UP);
6287 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
6288 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
6289 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
6290 
6291 			rval = qla2x00_loop_resync(ha);
6292 		} else
6293 			atomic_set(&ha->loop_state, LOOP_DEAD);
6294 
6295 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
6296 	}
6297 
6298 	return rval;
6299 }
6300 
6301 void
6302 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
6303 {
6304 	fc_port_t *fcport;
6305 	struct scsi_qla_host *vha;
6306 	struct qla_hw_data *ha = base_vha->hw;
6307 	unsigned long flags;
6308 
6309 	spin_lock_irqsave(&ha->vport_slock, flags);
6310 	/* Go with deferred removal of rport references. */
6311 	list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
6312 		atomic_inc(&vha->vref_count);
6313 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6314 			if (fcport->drport &&
6315 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
6316 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6317 				qla2x00_rport_del(fcport);
6318 
6319 				spin_lock_irqsave(&ha->vport_slock, flags);
6320 			}
6321 		}
6322 		atomic_dec(&vha->vref_count);
6323 		wake_up(&vha->vref_waitq);
6324 	}
6325 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6326 }
6327 
6328 /* Assumes idc_lock always held on entry */
6329 void
6330 qla83xx_reset_ownership(scsi_qla_host_t *vha)
6331 {
6332 	struct qla_hw_data *ha = vha->hw;
6333 	uint32_t drv_presence, drv_presence_mask;
6334 	uint32_t dev_part_info1, dev_part_info2, class_type;
6335 	uint32_t class_type_mask = 0x3;
6336 	uint16_t fcoe_other_function = 0xffff, i;
6337 
6338 	if (IS_QLA8044(ha)) {
6339 		drv_presence = qla8044_rd_direct(vha,
6340 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
6341 		dev_part_info1 = qla8044_rd_direct(vha,
6342 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
6343 		dev_part_info2 = qla8044_rd_direct(vha,
6344 		    QLA8044_CRB_DEV_PART_INFO2);
6345 	} else {
6346 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6347 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
6348 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
6349 	}
6350 	for (i = 0; i < 8; i++) {
6351 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
6352 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6353 		    (i != ha->portnum)) {
6354 			fcoe_other_function = i;
6355 			break;
6356 		}
6357 	}
6358 	if (fcoe_other_function == 0xffff) {
6359 		for (i = 0; i < 8; i++) {
6360 			class_type = ((dev_part_info2 >> (i * 4)) &
6361 			    class_type_mask);
6362 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6363 			    ((i + 8) != ha->portnum)) {
6364 				fcoe_other_function = i + 8;
6365 				break;
6366 			}
6367 		}
6368 	}
6369 	/*
6370 	 * Prepare drv-presence mask based on fcoe functions present.
6371 	 * However consider only valid physical fcoe function numbers (0-15).
6372 	 */
6373 	drv_presence_mask = ~((1 << (ha->portnum)) |
6374 			((fcoe_other_function == 0xffff) ?
6375 			 0 : (1 << (fcoe_other_function))));
6376 
6377 	/* We are the reset owner iff:
6378 	 *    - No other protocol drivers present.
6379 	 *    - This is the lowest among fcoe functions. */
6380 	if (!(drv_presence & drv_presence_mask) &&
6381 			(ha->portnum < fcoe_other_function)) {
6382 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6383 		    "This host is Reset owner.\n");
6384 		ha->flags.nic_core_reset_owner = 1;
6385 	}
6386 }
6387 
6388 static int
6389 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6390 {
6391 	int rval = QLA_SUCCESS;
6392 	struct qla_hw_data *ha = vha->hw;
6393 	uint32_t drv_ack;
6394 
6395 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6396 	if (rval == QLA_SUCCESS) {
6397 		drv_ack |= (1 << ha->portnum);
6398 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6399 	}
6400 
6401 	return rval;
6402 }
6403 
6404 static int
6405 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6406 {
6407 	int rval = QLA_SUCCESS;
6408 	struct qla_hw_data *ha = vha->hw;
6409 	uint32_t drv_ack;
6410 
6411 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6412 	if (rval == QLA_SUCCESS) {
6413 		drv_ack &= ~(1 << ha->portnum);
6414 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6415 	}
6416 
6417 	return rval;
6418 }
6419 
6420 static const char *
6421 qla83xx_dev_state_to_string(uint32_t dev_state)
6422 {
6423 	switch (dev_state) {
6424 	case QLA8XXX_DEV_COLD:
6425 		return "COLD/RE-INIT";
6426 	case QLA8XXX_DEV_INITIALIZING:
6427 		return "INITIALIZING";
6428 	case QLA8XXX_DEV_READY:
6429 		return "READY";
6430 	case QLA8XXX_DEV_NEED_RESET:
6431 		return "NEED RESET";
6432 	case QLA8XXX_DEV_NEED_QUIESCENT:
6433 		return "NEED QUIESCENT";
6434 	case QLA8XXX_DEV_FAILED:
6435 		return "FAILED";
6436 	case QLA8XXX_DEV_QUIESCENT:
6437 		return "QUIESCENT";
6438 	default:
6439 		return "Unknown";
6440 	}
6441 }
6442 
6443 /* Assumes idc-lock always held on entry */
6444 void
6445 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6446 {
6447 	struct qla_hw_data *ha = vha->hw;
6448 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6449 
6450 	switch (audit_type) {
6451 	case IDC_AUDIT_TIMESTAMP:
6452 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6453 		idc_audit_reg = (ha->portnum) |
6454 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6455 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6456 		break;
6457 
6458 	case IDC_AUDIT_COMPLETION:
6459 		duration_secs = ((jiffies_to_msecs(jiffies) -
6460 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6461 		idc_audit_reg = (ha->portnum) |
6462 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6463 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6464 		break;
6465 
6466 	default:
6467 		ql_log(ql_log_warn, vha, 0xb078,
6468 		    "Invalid audit type specified.\n");
6469 		break;
6470 	}
6471 }
6472 
6473 /* Assumes idc_lock always held on entry */
6474 static int
6475 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6476 {
6477 	struct qla_hw_data *ha = vha->hw;
6478 	uint32_t  idc_control, dev_state;
6479 
6480 	__qla83xx_get_idc_control(vha, &idc_control);
6481 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6482 		ql_log(ql_log_info, vha, 0xb080,
6483 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6484 		    idc_control);
6485 		return QLA_FUNCTION_FAILED;
6486 	}
6487 
6488 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6489 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6490 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6491 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6492 		    QLA8XXX_DEV_NEED_RESET);
6493 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6494 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6495 	} else {
6496 		const char *state = qla83xx_dev_state_to_string(dev_state);
6497 
6498 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
6499 
6500 		/* SV: XXX: Is timeout required here? */
6501 		/* Wait for IDC state change READY -> NEED_RESET */
6502 		while (dev_state == QLA8XXX_DEV_READY) {
6503 			qla83xx_idc_unlock(vha, 0);
6504 			msleep(200);
6505 			qla83xx_idc_lock(vha, 0);
6506 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6507 		}
6508 	}
6509 
6510 	/* Send IDC ack by writing to drv-ack register */
6511 	__qla83xx_set_drv_ack(vha);
6512 
6513 	return QLA_SUCCESS;
6514 }
6515 
6516 int
6517 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6518 {
6519 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6520 }
6521 
6522 int
6523 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6524 {
6525 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6526 }
6527 
6528 static int
6529 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6530 {
6531 	uint32_t drv_presence = 0;
6532 	struct qla_hw_data *ha = vha->hw;
6533 
6534 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6535 	if (drv_presence & (1 << ha->portnum))
6536 		return QLA_SUCCESS;
6537 	else
6538 		return QLA_TEST_FAILED;
6539 }
6540 
6541 int
6542 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6543 {
6544 	int rval = QLA_SUCCESS;
6545 	struct qla_hw_data *ha = vha->hw;
6546 
6547 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6548 	    "Entered  %s().\n", __func__);
6549 
6550 	if (vha->device_flags & DFLG_DEV_FAILED) {
6551 		ql_log(ql_log_warn, vha, 0xb059,
6552 		    "Device in unrecoverable FAILED state.\n");
6553 		return QLA_FUNCTION_FAILED;
6554 	}
6555 
6556 	qla83xx_idc_lock(vha, 0);
6557 
6558 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6559 		ql_log(ql_log_warn, vha, 0xb05a,
6560 		    "Function=0x%x has been removed from IDC participation.\n",
6561 		    ha->portnum);
6562 		rval = QLA_FUNCTION_FAILED;
6563 		goto exit;
6564 	}
6565 
6566 	qla83xx_reset_ownership(vha);
6567 
6568 	rval = qla83xx_initiating_reset(vha);
6569 
6570 	/*
6571 	 * Perform reset if we are the reset-owner,
6572 	 * else wait till IDC state changes to READY/FAILED.
6573 	 */
6574 	if (rval == QLA_SUCCESS) {
6575 		rval = qla83xx_idc_state_handler(vha);
6576 
6577 		if (rval == QLA_SUCCESS)
6578 			ha->flags.nic_core_hung = 0;
6579 		__qla83xx_clear_drv_ack(vha);
6580 	}
6581 
6582 exit:
6583 	qla83xx_idc_unlock(vha, 0);
6584 
6585 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6586 
6587 	return rval;
6588 }
6589 
6590 int
6591 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6592 {
6593 	struct qla_hw_data *ha = vha->hw;
6594 	int rval = QLA_FUNCTION_FAILED;
6595 
6596 	if (!IS_MCTP_CAPABLE(ha)) {
6597 		/* This message can be removed from the final version */
6598 		ql_log(ql_log_info, vha, 0x506d,
6599 		    "This board is not MCTP capable\n");
6600 		return rval;
6601 	}
6602 
6603 	if (!ha->mctp_dump) {
6604 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6605 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6606 
6607 		if (!ha->mctp_dump) {
6608 			ql_log(ql_log_warn, vha, 0x506e,
6609 			    "Failed to allocate memory for mctp dump\n");
6610 			return rval;
6611 		}
6612 	}
6613 
6614 #define MCTP_DUMP_STR_ADDR	0x00000000
6615 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
6616 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
6617 	if (rval != QLA_SUCCESS) {
6618 		ql_log(ql_log_warn, vha, 0x506f,
6619 		    "Failed to capture mctp dump\n");
6620 	} else {
6621 		ql_log(ql_log_info, vha, 0x5070,
6622 		    "Mctp dump capture for host (%ld/%p).\n",
6623 		    vha->host_no, ha->mctp_dump);
6624 		ha->mctp_dumped = 1;
6625 	}
6626 
6627 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
6628 		ha->flags.nic_core_reset_hdlr_active = 1;
6629 		rval = qla83xx_restart_nic_firmware(vha);
6630 		if (rval)
6631 			/* NIC Core reset failed. */
6632 			ql_log(ql_log_warn, vha, 0x5071,
6633 			    "Failed to restart nic firmware\n");
6634 		else
6635 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
6636 			    "Restarted NIC firmware successfully.\n");
6637 		ha->flags.nic_core_reset_hdlr_active = 0;
6638 	}
6639 
6640 	return rval;
6641 
6642 }
6643 
6644 /*
6645 * qla2x00_quiesce_io
6646 * Description: This function will block the new I/Os
6647 *              Its not aborting any I/Os as context
6648 *              is not destroyed during quiescence
6649 * Arguments: scsi_qla_host_t
6650 * return   : void
6651 */
6652 void
6653 qla2x00_quiesce_io(scsi_qla_host_t *vha)
6654 {
6655 	struct qla_hw_data *ha = vha->hw;
6656 	struct scsi_qla_host *vp;
6657 
6658 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
6659 	    "Quiescing I/O - ha=%p.\n", ha);
6660 
6661 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
6662 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6663 		atomic_set(&vha->loop_state, LOOP_DOWN);
6664 		qla2x00_mark_all_devices_lost(vha);
6665 		list_for_each_entry(vp, &ha->vp_list, list)
6666 			qla2x00_mark_all_devices_lost(vp);
6667 	} else {
6668 		if (!atomic_read(&vha->loop_down_timer))
6669 			atomic_set(&vha->loop_down_timer,
6670 					LOOP_DOWN_TIME);
6671 	}
6672 	/* Wait for pending cmds to complete */
6673 	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
6674 		     != QLA_SUCCESS);
6675 }
6676 
6677 void
6678 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
6679 {
6680 	struct qla_hw_data *ha = vha->hw;
6681 	struct scsi_qla_host *vp;
6682 	unsigned long flags;
6683 	fc_port_t *fcport;
6684 	u16 i;
6685 
6686 	/* For ISP82XX, driver waits for completion of the commands.
6687 	 * online flag should be set.
6688 	 */
6689 	if (!(IS_P3P_TYPE(ha)))
6690 		vha->flags.online = 0;
6691 	ha->flags.chip_reset_done = 0;
6692 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6693 	vha->qla_stats.total_isp_aborts++;
6694 
6695 	ql_log(ql_log_info, vha, 0x00af,
6696 	    "Performing ISP error recovery - ha=%p.\n", ha);
6697 
6698 	ha->flags.purge_mbox = 1;
6699 	/* For ISP82XX, reset_chip is just disabling interrupts.
6700 	 * Driver waits for the completion of the commands.
6701 	 * the interrupts need to be enabled.
6702 	 */
6703 	if (!(IS_P3P_TYPE(ha)))
6704 		ha->isp_ops->reset_chip(vha);
6705 
6706 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
6707 	SAVE_TOPO(ha);
6708 	ha->flags.rida_fmt2 = 0;
6709 	ha->flags.n2n_ae = 0;
6710 	ha->flags.lip_ae = 0;
6711 	ha->current_topology = 0;
6712 	QLA_FW_STOPPED(ha);
6713 	ha->flags.fw_init_done = 0;
6714 	ha->chip_reset++;
6715 	ha->base_qpair->chip_reset = ha->chip_reset;
6716 	for (i = 0; i < ha->max_qpairs; i++) {
6717 		if (ha->queue_pair_map[i])
6718 			ha->queue_pair_map[i]->chip_reset =
6719 				ha->base_qpair->chip_reset;
6720 	}
6721 
6722 	/* purge MBox commands */
6723 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
6724 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
6725 		complete(&ha->mbx_intr_comp);
6726 	}
6727 
6728 	i = 0;
6729 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
6730 	    atomic_read(&ha->num_pend_mbx_stage2) ||
6731 	    atomic_read(&ha->num_pend_mbx_stage1)) {
6732 		msleep(20);
6733 		i++;
6734 		if (i > 50)
6735 			break;
6736 	}
6737 	ha->flags.purge_mbox = 0;
6738 
6739 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
6740 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6741 		atomic_set(&vha->loop_state, LOOP_DOWN);
6742 		qla2x00_mark_all_devices_lost(vha);
6743 
6744 		spin_lock_irqsave(&ha->vport_slock, flags);
6745 		list_for_each_entry(vp, &ha->vp_list, list) {
6746 			atomic_inc(&vp->vref_count);
6747 			spin_unlock_irqrestore(&ha->vport_slock, flags);
6748 
6749 			qla2x00_mark_all_devices_lost(vp);
6750 
6751 			spin_lock_irqsave(&ha->vport_slock, flags);
6752 			atomic_dec(&vp->vref_count);
6753 		}
6754 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6755 	} else {
6756 		if (!atomic_read(&vha->loop_down_timer))
6757 			atomic_set(&vha->loop_down_timer,
6758 			    LOOP_DOWN_TIME);
6759 	}
6760 
6761 	/* Clear all async request states across all VPs. */
6762 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6763 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6764 		fcport->scan_state = 0;
6765 	}
6766 	spin_lock_irqsave(&ha->vport_slock, flags);
6767 	list_for_each_entry(vp, &ha->vp_list, list) {
6768 		atomic_inc(&vp->vref_count);
6769 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6770 
6771 		list_for_each_entry(fcport, &vp->vp_fcports, list)
6772 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6773 
6774 		spin_lock_irqsave(&ha->vport_slock, flags);
6775 		atomic_dec(&vp->vref_count);
6776 	}
6777 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6778 
6779 	if (!ha->flags.eeh_busy) {
6780 		/* Make sure for ISP 82XX IO DMA is complete */
6781 		if (IS_P3P_TYPE(ha)) {
6782 			qla82xx_chip_reset_cleanup(vha);
6783 			ql_log(ql_log_info, vha, 0x00b4,
6784 			    "Done chip reset cleanup.\n");
6785 
6786 			/* Done waiting for pending commands.
6787 			 * Reset the online flag.
6788 			 */
6789 			vha->flags.online = 0;
6790 		}
6791 
6792 		/* Requeue all commands in outstanding command list. */
6793 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
6794 	}
6795 	/* memory barrier */
6796 	wmb();
6797 }
6798 
6799 /*
6800 *  qla2x00_abort_isp
6801 *      Resets ISP and aborts all outstanding commands.
6802 *
6803 * Input:
6804 *      ha           = adapter block pointer.
6805 *
6806 * Returns:
6807 *      0 = success
6808 */
6809 int
6810 qla2x00_abort_isp(scsi_qla_host_t *vha)
6811 {
6812 	int rval;
6813 	uint8_t        status = 0;
6814 	struct qla_hw_data *ha = vha->hw;
6815 	struct scsi_qla_host *vp;
6816 	struct req_que *req = ha->req_q_map[0];
6817 	unsigned long flags;
6818 
6819 	if (vha->flags.online) {
6820 		qla2x00_abort_isp_cleanup(vha);
6821 
6822 		if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
6823 			ha->flags.chip_reset_done = 1;
6824 			vha->flags.online = 1;
6825 			status = 0;
6826 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6827 			return status;
6828 		}
6829 
6830 		if (IS_QLA8031(ha)) {
6831 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
6832 			    "Clearing fcoe driver presence.\n");
6833 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
6834 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
6835 				    "Error while clearing DRV-Presence.\n");
6836 		}
6837 
6838 		if (unlikely(pci_channel_offline(ha->pdev) &&
6839 		    ha->flags.pci_channel_io_perm_failure)) {
6840 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6841 			status = 0;
6842 			return status;
6843 		}
6844 
6845 		switch (vha->qlini_mode) {
6846 		case QLA2XXX_INI_MODE_DISABLED:
6847 			if (!qla_tgt_mode_enabled(vha))
6848 				return 0;
6849 			break;
6850 		case QLA2XXX_INI_MODE_DUAL:
6851 			if (!qla_dual_mode_enabled(vha))
6852 				return 0;
6853 			break;
6854 		case QLA2XXX_INI_MODE_ENABLED:
6855 		default:
6856 			break;
6857 		}
6858 
6859 		ha->isp_ops->get_flash_version(vha, req->ring);
6860 
6861 		ha->isp_ops->nvram_config(vha);
6862 
6863 		if (!qla2x00_restart_isp(vha)) {
6864 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6865 
6866 			if (!atomic_read(&vha->loop_down_timer)) {
6867 				/*
6868 				 * Issue marker command only when we are going
6869 				 * to start the I/O .
6870 				 */
6871 				vha->marker_needed = 1;
6872 			}
6873 
6874 			vha->flags.online = 1;
6875 
6876 			ha->isp_ops->enable_intrs(ha);
6877 
6878 			ha->isp_abort_cnt = 0;
6879 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6880 
6881 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
6882 				qla2x00_get_fw_version(vha);
6883 			if (ha->fce) {
6884 				ha->flags.fce_enabled = 1;
6885 				memset(ha->fce, 0,
6886 				    fce_calc_size(ha->fce_bufs));
6887 				rval = qla2x00_enable_fce_trace(vha,
6888 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
6889 				    &ha->fce_bufs);
6890 				if (rval) {
6891 					ql_log(ql_log_warn, vha, 0x8033,
6892 					    "Unable to reinitialize FCE "
6893 					    "(%d).\n", rval);
6894 					ha->flags.fce_enabled = 0;
6895 				}
6896 			}
6897 
6898 			if (ha->eft) {
6899 				memset(ha->eft, 0, EFT_SIZE);
6900 				rval = qla2x00_enable_eft_trace(vha,
6901 				    ha->eft_dma, EFT_NUM_BUFFERS);
6902 				if (rval) {
6903 					ql_log(ql_log_warn, vha, 0x8034,
6904 					    "Unable to reinitialize EFT "
6905 					    "(%d).\n", rval);
6906 				}
6907 			}
6908 		} else {	/* failed the ISP abort */
6909 			vha->flags.online = 1;
6910 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
6911 				if (ha->isp_abort_cnt == 0) {
6912 					ql_log(ql_log_fatal, vha, 0x8035,
6913 					    "ISP error recover failed - "
6914 					    "board disabled.\n");
6915 					/*
6916 					 * The next call disables the board
6917 					 * completely.
6918 					 */
6919 					qla2x00_abort_isp_cleanup(vha);
6920 					vha->flags.online = 0;
6921 					clear_bit(ISP_ABORT_RETRY,
6922 					    &vha->dpc_flags);
6923 					status = 0;
6924 				} else { /* schedule another ISP abort */
6925 					ha->isp_abort_cnt--;
6926 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
6927 					    "ISP abort - retry remaining %d.\n",
6928 					    ha->isp_abort_cnt);
6929 					status = 1;
6930 				}
6931 			} else {
6932 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
6933 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
6934 				    "ISP error recovery - retrying (%d) "
6935 				    "more times.\n", ha->isp_abort_cnt);
6936 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6937 				status = 1;
6938 			}
6939 		}
6940 
6941 	}
6942 
6943 	if (!status) {
6944 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
6945 		qla2x00_configure_hba(vha);
6946 		spin_lock_irqsave(&ha->vport_slock, flags);
6947 		list_for_each_entry(vp, &ha->vp_list, list) {
6948 			if (vp->vp_idx) {
6949 				atomic_inc(&vp->vref_count);
6950 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6951 
6952 				qla2x00_vp_abort_isp(vp);
6953 
6954 				spin_lock_irqsave(&ha->vport_slock, flags);
6955 				atomic_dec(&vp->vref_count);
6956 			}
6957 		}
6958 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6959 
6960 		if (IS_QLA8031(ha)) {
6961 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
6962 			    "Setting back fcoe driver presence.\n");
6963 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
6964 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
6965 				    "Error while setting DRV-Presence.\n");
6966 		}
6967 	} else {
6968 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
6969 		       __func__);
6970 	}
6971 
6972 	return(status);
6973 }
6974 
6975 /*
6976 *  qla2x00_restart_isp
6977 *      restarts the ISP after a reset
6978 *
6979 * Input:
6980 *      ha = adapter block pointer.
6981 *
6982 * Returns:
6983 *      0 = success
6984 */
6985 static int
6986 qla2x00_restart_isp(scsi_qla_host_t *vha)
6987 {
6988 	int status = 0;
6989 	struct qla_hw_data *ha = vha->hw;
6990 
6991 	/* If firmware needs to be loaded */
6992 	if (qla2x00_isp_firmware(vha)) {
6993 		vha->flags.online = 0;
6994 		status = ha->isp_ops->chip_diag(vha);
6995 		if (!status)
6996 			status = qla2x00_setup_chip(vha);
6997 	}
6998 
6999 	if (!status && !(status = qla2x00_init_rings(vha))) {
7000 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7001 		ha->flags.chip_reset_done = 1;
7002 
7003 		/* Initialize the queues in use */
7004 		qla25xx_init_queues(ha);
7005 
7006 		status = qla2x00_fw_ready(vha);
7007 		if (!status) {
7008 			/* Issue a marker after FW becomes ready. */
7009 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
7010 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
7011 		}
7012 
7013 		/* if no cable then assume it's good */
7014 		if ((vha->device_flags & DFLG_NO_CABLE))
7015 			status = 0;
7016 	}
7017 	return (status);
7018 }
7019 
7020 static int
7021 qla25xx_init_queues(struct qla_hw_data *ha)
7022 {
7023 	struct rsp_que *rsp = NULL;
7024 	struct req_que *req = NULL;
7025 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7026 	int ret = -1;
7027 	int i;
7028 
7029 	for (i = 1; i < ha->max_rsp_queues; i++) {
7030 		rsp = ha->rsp_q_map[i];
7031 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
7032 			rsp->options &= ~BIT_0;
7033 			ret = qla25xx_init_rsp_que(base_vha, rsp);
7034 			if (ret != QLA_SUCCESS)
7035 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
7036 				    "%s Rsp que: %d init failed.\n",
7037 				    __func__, rsp->id);
7038 			else
7039 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
7040 				    "%s Rsp que: %d inited.\n",
7041 				    __func__, rsp->id);
7042 		}
7043 	}
7044 	for (i = 1; i < ha->max_req_queues; i++) {
7045 		req = ha->req_q_map[i];
7046 		if (req && test_bit(i, ha->req_qid_map)) {
7047 			/* Clear outstanding commands array. */
7048 			req->options &= ~BIT_0;
7049 			ret = qla25xx_init_req_que(base_vha, req);
7050 			if (ret != QLA_SUCCESS)
7051 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
7052 				    "%s Req que: %d init failed.\n",
7053 				    __func__, req->id);
7054 			else
7055 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
7056 				    "%s Req que: %d inited.\n",
7057 				    __func__, req->id);
7058 		}
7059 	}
7060 	return ret;
7061 }
7062 
7063 /*
7064 * qla2x00_reset_adapter
7065 *      Reset adapter.
7066 *
7067 * Input:
7068 *      ha = adapter block pointer.
7069 */
7070 int
7071 qla2x00_reset_adapter(scsi_qla_host_t *vha)
7072 {
7073 	unsigned long flags = 0;
7074 	struct qla_hw_data *ha = vha->hw;
7075 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7076 
7077 	vha->flags.online = 0;
7078 	ha->isp_ops->disable_intrs(ha);
7079 
7080 	spin_lock_irqsave(&ha->hardware_lock, flags);
7081 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
7082 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
7083 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
7084 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
7085 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7086 
7087 	return QLA_SUCCESS;
7088 }
7089 
7090 int
7091 qla24xx_reset_adapter(scsi_qla_host_t *vha)
7092 {
7093 	unsigned long flags = 0;
7094 	struct qla_hw_data *ha = vha->hw;
7095 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
7096 	int rval = QLA_SUCCESS;
7097 
7098 	if (IS_P3P_TYPE(ha))
7099 		return rval;
7100 
7101 	vha->flags.online = 0;
7102 	ha->isp_ops->disable_intrs(ha);
7103 
7104 	spin_lock_irqsave(&ha->hardware_lock, flags);
7105 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
7106 	RD_REG_DWORD(&reg->hccr);
7107 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
7108 	RD_REG_DWORD(&reg->hccr);
7109 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7110 
7111 	if (IS_NOPOLLING_TYPE(ha))
7112 		ha->isp_ops->enable_intrs(ha);
7113 
7114 	return rval;
7115 }
7116 
7117 /* On sparc systems, obtain port and node WWN from firmware
7118  * properties.
7119  */
7120 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
7121 	struct nvram_24xx *nv)
7122 {
7123 #ifdef CONFIG_SPARC
7124 	struct qla_hw_data *ha = vha->hw;
7125 	struct pci_dev *pdev = ha->pdev;
7126 	struct device_node *dp = pci_device_to_OF_node(pdev);
7127 	const u8 *val;
7128 	int len;
7129 
7130 	val = of_get_property(dp, "port-wwn", &len);
7131 	if (val && len >= WWN_SIZE)
7132 		memcpy(nv->port_name, val, WWN_SIZE);
7133 
7134 	val = of_get_property(dp, "node-wwn", &len);
7135 	if (val && len >= WWN_SIZE)
7136 		memcpy(nv->node_name, val, WWN_SIZE);
7137 #endif
7138 }
7139 
7140 int
7141 qla24xx_nvram_config(scsi_qla_host_t *vha)
7142 {
7143 	int   rval;
7144 	struct init_cb_24xx *icb;
7145 	struct nvram_24xx *nv;
7146 	uint32_t *dptr;
7147 	uint8_t  *dptr1, *dptr2;
7148 	uint32_t chksum;
7149 	uint16_t cnt;
7150 	struct qla_hw_data *ha = vha->hw;
7151 
7152 	rval = QLA_SUCCESS;
7153 	icb = (struct init_cb_24xx *)ha->init_cb;
7154 	nv = ha->nvram;
7155 
7156 	/* Determine NVRAM starting address. */
7157 	if (ha->port_no == 0) {
7158 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
7159 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
7160 	} else {
7161 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
7162 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
7163 	}
7164 
7165 	ha->nvram_size = sizeof(*nv);
7166 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7167 
7168 	/* Get VPD data into cache */
7169 	ha->vpd = ha->nvram + VPD_OFFSET;
7170 	ha->isp_ops->read_nvram(vha, ha->vpd,
7171 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
7172 
7173 	/* Get NVRAM data into cache and calculate checksum. */
7174 	dptr = (uint32_t *)nv;
7175 	ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
7176 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7177 		chksum += le32_to_cpu(*dptr);
7178 
7179 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
7180 	    "Contents of NVRAM\n");
7181 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
7182 	    nv, ha->nvram_size);
7183 
7184 	/* Bad NVRAM data, set defaults parameters. */
7185 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
7186 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
7187 		/* Reset NVRAM data. */
7188 		ql_log(ql_log_warn, vha, 0x006b,
7189 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
7190 		    chksum, nv->id, nv->nvram_version);
7191 		ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
7192 		ql_log(ql_log_warn, vha, 0x006c,
7193 		    "Falling back to functioning (yet invalid -- WWPN) "
7194 		    "defaults.\n");
7195 
7196 		/*
7197 		 * Set default initialization control block.
7198 		 */
7199 		memset(nv, 0, ha->nvram_size);
7200 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7201 		nv->version = cpu_to_le16(ICB_VERSION);
7202 		nv->frame_payload_size = 2048;
7203 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7204 		nv->exchange_count = cpu_to_le16(0);
7205 		nv->hard_address = cpu_to_le16(124);
7206 		nv->port_name[0] = 0x21;
7207 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7208 		nv->port_name[2] = 0x00;
7209 		nv->port_name[3] = 0xe0;
7210 		nv->port_name[4] = 0x8b;
7211 		nv->port_name[5] = 0x1c;
7212 		nv->port_name[6] = 0x55;
7213 		nv->port_name[7] = 0x86;
7214 		nv->node_name[0] = 0x20;
7215 		nv->node_name[1] = 0x00;
7216 		nv->node_name[2] = 0x00;
7217 		nv->node_name[3] = 0xe0;
7218 		nv->node_name[4] = 0x8b;
7219 		nv->node_name[5] = 0x1c;
7220 		nv->node_name[6] = 0x55;
7221 		nv->node_name[7] = 0x86;
7222 		qla24xx_nvram_wwn_from_ofw(vha, nv);
7223 		nv->login_retry_count = cpu_to_le16(8);
7224 		nv->interrupt_delay_timer = cpu_to_le16(0);
7225 		nv->login_timeout = cpu_to_le16(0);
7226 		nv->firmware_options_1 =
7227 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7228 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7229 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7230 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7231 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7232 		nv->efi_parameters = cpu_to_le32(0);
7233 		nv->reset_delay = 5;
7234 		nv->max_luns_per_target = cpu_to_le16(128);
7235 		nv->port_down_retry_count = cpu_to_le16(30);
7236 		nv->link_down_timeout = cpu_to_le16(30);
7237 
7238 		rval = 1;
7239 	}
7240 
7241 	if (qla_tgt_mode_enabled(vha)) {
7242 		/* Don't enable full login after initial LIP */
7243 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7244 		/* Don't enable LIP full login for initiator */
7245 		nv->host_p &= cpu_to_le32(~BIT_10);
7246 	}
7247 
7248 	qlt_24xx_config_nvram_stage1(vha, nv);
7249 
7250 	/* Reset Initialization control block */
7251 	memset(icb, 0, ha->init_cb_size);
7252 
7253 	/* Copy 1st segment. */
7254 	dptr1 = (uint8_t *)icb;
7255 	dptr2 = (uint8_t *)&nv->version;
7256 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7257 	while (cnt--)
7258 		*dptr1++ = *dptr2++;
7259 
7260 	icb->login_retry_count = nv->login_retry_count;
7261 	icb->link_down_on_nos = nv->link_down_on_nos;
7262 
7263 	/* Copy 2nd segment. */
7264 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7265 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7266 	cnt = (uint8_t *)&icb->reserved_3 -
7267 	    (uint8_t *)&icb->interrupt_delay_timer;
7268 	while (cnt--)
7269 		*dptr1++ = *dptr2++;
7270 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
7271 	/*
7272 	 * Setup driver NVRAM options.
7273 	 */
7274 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7275 	    "QLA2462");
7276 
7277 	qlt_24xx_config_nvram_stage2(vha, icb);
7278 
7279 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7280 		/* Use alternate WWN? */
7281 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7282 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7283 	}
7284 
7285 	/* Prepare nodename */
7286 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7287 		/*
7288 		 * Firmware will apply the following mask if the nodename was
7289 		 * not provided.
7290 		 */
7291 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7292 		icb->node_name[0] &= 0xF0;
7293 	}
7294 
7295 	/* Set host adapter parameters. */
7296 	ha->flags.disable_risc_code_load = 0;
7297 	ha->flags.enable_lip_reset = 0;
7298 	ha->flags.enable_lip_full_login =
7299 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
7300 	ha->flags.enable_target_reset =
7301 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
7302 	ha->flags.enable_led_scheme = 0;
7303 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
7304 
7305 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7306 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7307 
7308 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
7309 	    sizeof(ha->fw_seriallink_options24));
7310 
7311 	/* save HBA serial number */
7312 	ha->serial0 = icb->port_name[5];
7313 	ha->serial1 = icb->port_name[6];
7314 	ha->serial2 = icb->port_name[7];
7315 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7316 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7317 
7318 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7319 
7320 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7321 
7322 	/* Set minimum login_timeout to 4 seconds. */
7323 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7324 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7325 	if (le16_to_cpu(nv->login_timeout) < 4)
7326 		nv->login_timeout = cpu_to_le16(4);
7327 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7328 
7329 	/* Set minimum RATOV to 100 tenths of a second. */
7330 	ha->r_a_tov = 100;
7331 
7332 	ha->loop_reset_delay = nv->reset_delay;
7333 
7334 	/* Link Down Timeout = 0:
7335 	 *
7336 	 * 	When Port Down timer expires we will start returning
7337 	 *	I/O's to OS with "DID_NO_CONNECT".
7338 	 *
7339 	 * Link Down Timeout != 0:
7340 	 *
7341 	 *	 The driver waits for the link to come up after link down
7342 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7343 	 */
7344 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7345 		ha->loop_down_abort_time =
7346 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7347 	} else {
7348 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7349 		ha->loop_down_abort_time =
7350 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7351 	}
7352 
7353 	/* Need enough time to try and get the port back. */
7354 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7355 	if (qlport_down_retry)
7356 		ha->port_down_retry_count = qlport_down_retry;
7357 
7358 	/* Set login_retry_count */
7359 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7360 	if (ha->port_down_retry_count ==
7361 	    le16_to_cpu(nv->port_down_retry_count) &&
7362 	    ha->port_down_retry_count > 3)
7363 		ha->login_retry_count = ha->port_down_retry_count;
7364 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
7365 		ha->login_retry_count = ha->port_down_retry_count;
7366 	if (ql2xloginretrycount)
7367 		ha->login_retry_count = ql2xloginretrycount;
7368 
7369 	/* N2N: driver will initiate Login instead of FW */
7370 	icb->firmware_options_3 |= BIT_8;
7371 
7372 	/* Enable ZIO. */
7373 	if (!vha->flags.init_done) {
7374 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
7375 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
7376 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
7377 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
7378 	}
7379 	icb->firmware_options_2 &= cpu_to_le32(
7380 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
7381 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
7382 		ha->zio_mode = QLA_ZIO_MODE_6;
7383 
7384 		ql_log(ql_log_info, vha, 0x006f,
7385 		    "ZIO mode %d enabled; timer delay (%d us).\n",
7386 		    ha->zio_mode, ha->zio_timer * 100);
7387 
7388 		icb->firmware_options_2 |= cpu_to_le32(
7389 		    (uint32_t)ha->zio_mode);
7390 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
7391 	}
7392 
7393 	if (rval) {
7394 		ql_log(ql_log_warn, vha, 0x0070,
7395 		    "NVRAM configuration failed.\n");
7396 	}
7397 	return (rval);
7398 }
7399 
7400 static void
7401 qla27xx_print_image(struct scsi_qla_host *vha, char *name,
7402     struct qla27xx_image_status *image_status)
7403 {
7404 	ql_dbg(ql_dbg_init, vha, 0x018b,
7405 	    "%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
7406 	    name, "status",
7407 	    image_status->image_status_mask,
7408 	    le16_to_cpu(image_status->generation),
7409 	    image_status->ver_major,
7410 	    image_status->ver_minor,
7411 	    image_status->bitmap,
7412 	    le32_to_cpu(image_status->checksum),
7413 	    le32_to_cpu(image_status->signature));
7414 }
7415 
7416 static bool
7417 qla28xx_check_aux_image_status_signature(
7418     struct qla27xx_image_status *image_status)
7419 {
7420 	ulong signature = le32_to_cpu(image_status->signature);
7421 
7422 	return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
7423 }
7424 
7425 static bool
7426 qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
7427 {
7428 	ulong signature = le32_to_cpu(image_status->signature);
7429 
7430 	return
7431 	    signature != QLA27XX_IMG_STATUS_SIGN &&
7432 	    signature != QLA28XX_IMG_STATUS_SIGN;
7433 }
7434 
7435 static ulong
7436 qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
7437 {
7438 	uint32_t *p = (void *)image_status;
7439 	uint n = sizeof(*image_status) / sizeof(*p);
7440 	uint32_t sum = 0;
7441 
7442 	for ( ; n--; p++)
7443 		sum += le32_to_cpup(p);
7444 
7445 	return sum;
7446 }
7447 
7448 static inline uint
7449 qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
7450 {
7451 	return aux->bitmap & bitmask ?
7452 	    QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
7453 }
7454 
7455 static void
7456 qla28xx_component_status(
7457     struct active_regions *active_regions, struct qla27xx_image_status *aux)
7458 {
7459 	active_regions->aux.board_config =
7460 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
7461 
7462 	active_regions->aux.vpd_nvram =
7463 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
7464 
7465 	active_regions->aux.npiv_config_0_1 =
7466 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
7467 
7468 	active_regions->aux.npiv_config_2_3 =
7469 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
7470 }
7471 
7472 static int
7473 qla27xx_compare_image_generation(
7474     struct qla27xx_image_status *pri_image_status,
7475     struct qla27xx_image_status *sec_image_status)
7476 {
7477 	/* calculate generation delta as uint16 (this accounts for wrap) */
7478 	int16_t delta =
7479 	    le16_to_cpu(pri_image_status->generation) -
7480 	    le16_to_cpu(sec_image_status->generation);
7481 
7482 	ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
7483 
7484 	return delta;
7485 }
7486 
7487 void
7488 qla28xx_get_aux_images(
7489 	struct scsi_qla_host *vha, struct active_regions *active_regions)
7490 {
7491 	struct qla_hw_data *ha = vha->hw;
7492 	struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
7493 	bool valid_pri_image = false, valid_sec_image = false;
7494 	bool active_pri_image = false, active_sec_image = false;
7495 
7496 	if (!ha->flt_region_aux_img_status_pri) {
7497 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
7498 		goto check_sec_image;
7499 	}
7500 
7501 	qla24xx_read_flash_data(vha, (void *)&pri_aux_image_status,
7502 	    ha->flt_region_aux_img_status_pri,
7503 	    sizeof(pri_aux_image_status) >> 2);
7504 	qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
7505 
7506 	if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
7507 		ql_dbg(ql_dbg_init, vha, 0x018b,
7508 		    "Primary aux image signature (%#x) not valid\n",
7509 		    le32_to_cpu(pri_aux_image_status.signature));
7510 		goto check_sec_image;
7511 	}
7512 
7513 	if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
7514 		ql_dbg(ql_dbg_init, vha, 0x018c,
7515 		    "Primary aux image checksum failed\n");
7516 		goto check_sec_image;
7517 	}
7518 
7519 	valid_pri_image = true;
7520 
7521 	if (pri_aux_image_status.image_status_mask & 1) {
7522 		ql_dbg(ql_dbg_init, vha, 0x018d,
7523 		    "Primary aux image is active\n");
7524 		active_pri_image = true;
7525 	}
7526 
7527 check_sec_image:
7528 	if (!ha->flt_region_aux_img_status_sec) {
7529 		ql_dbg(ql_dbg_init, vha, 0x018a,
7530 		    "Secondary aux image not addressed\n");
7531 		goto check_valid_image;
7532 	}
7533 
7534 	qla24xx_read_flash_data(vha, (void *)&sec_aux_image_status,
7535 	    ha->flt_region_aux_img_status_sec,
7536 	    sizeof(sec_aux_image_status) >> 2);
7537 	qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
7538 
7539 	if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
7540 		ql_dbg(ql_dbg_init, vha, 0x018b,
7541 		    "Secondary aux image signature (%#x) not valid\n",
7542 		    le32_to_cpu(sec_aux_image_status.signature));
7543 		goto check_valid_image;
7544 	}
7545 
7546 	if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
7547 		ql_dbg(ql_dbg_init, vha, 0x018c,
7548 		    "Secondary aux image checksum failed\n");
7549 		goto check_valid_image;
7550 	}
7551 
7552 	valid_sec_image = true;
7553 
7554 	if (sec_aux_image_status.image_status_mask & 1) {
7555 		ql_dbg(ql_dbg_init, vha, 0x018d,
7556 		    "Secondary aux image is active\n");
7557 		active_sec_image = true;
7558 	}
7559 
7560 check_valid_image:
7561 	if (valid_pri_image && active_pri_image &&
7562 	    valid_sec_image && active_sec_image) {
7563 		if (qla27xx_compare_image_generation(&pri_aux_image_status,
7564 		    &sec_aux_image_status) >= 0) {
7565 			qla28xx_component_status(active_regions,
7566 			    &pri_aux_image_status);
7567 		} else {
7568 			qla28xx_component_status(active_regions,
7569 			    &sec_aux_image_status);
7570 		}
7571 	} else if (valid_pri_image && active_pri_image) {
7572 		qla28xx_component_status(active_regions, &pri_aux_image_status);
7573 	} else if (valid_sec_image && active_sec_image) {
7574 		qla28xx_component_status(active_regions, &sec_aux_image_status);
7575 	}
7576 
7577 	ql_dbg(ql_dbg_init, vha, 0x018f,
7578 	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u\n",
7579 	    active_regions->aux.board_config,
7580 	    active_regions->aux.vpd_nvram,
7581 	    active_regions->aux.npiv_config_0_1,
7582 	    active_regions->aux.npiv_config_2_3);
7583 }
7584 
7585 void
7586 qla27xx_get_active_image(struct scsi_qla_host *vha,
7587     struct active_regions *active_regions)
7588 {
7589 	struct qla_hw_data *ha = vha->hw;
7590 	struct qla27xx_image_status pri_image_status, sec_image_status;
7591 	bool valid_pri_image = false, valid_sec_image = false;
7592 	bool active_pri_image = false, active_sec_image = false;
7593 
7594 	if (!ha->flt_region_img_status_pri) {
7595 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
7596 		goto check_sec_image;
7597 	}
7598 
7599 	if (qla24xx_read_flash_data(vha, (void *)(&pri_image_status),
7600 	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
7601 	    QLA_SUCCESS) {
7602 		WARN_ON_ONCE(true);
7603 		goto check_sec_image;
7604 	}
7605 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
7606 
7607 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
7608 		ql_dbg(ql_dbg_init, vha, 0x018b,
7609 		    "Primary image signature (%#x) not valid\n",
7610 		    le32_to_cpu(pri_image_status.signature));
7611 		goto check_sec_image;
7612 	}
7613 
7614 	if (qla27xx_image_status_checksum(&pri_image_status)) {
7615 		ql_dbg(ql_dbg_init, vha, 0x018c,
7616 		    "Primary image checksum failed\n");
7617 		goto check_sec_image;
7618 	}
7619 
7620 	valid_pri_image = true;
7621 
7622 	if (pri_image_status.image_status_mask & 1) {
7623 		ql_dbg(ql_dbg_init, vha, 0x018d,
7624 		    "Primary image is active\n");
7625 		active_pri_image = true;
7626 	}
7627 
7628 check_sec_image:
7629 	if (!ha->flt_region_img_status_sec) {
7630 		ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
7631 		goto check_valid_image;
7632 	}
7633 
7634 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
7635 	    ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
7636 	qla27xx_print_image(vha, "Secondary image", &sec_image_status);
7637 
7638 	if (qla27xx_check_image_status_signature(&sec_image_status)) {
7639 		ql_dbg(ql_dbg_init, vha, 0x018b,
7640 		    "Secondary image signature (%#x) not valid\n",
7641 		    le32_to_cpu(sec_image_status.signature));
7642 		goto check_valid_image;
7643 	}
7644 
7645 	if (qla27xx_image_status_checksum(&sec_image_status)) {
7646 		ql_dbg(ql_dbg_init, vha, 0x018c,
7647 		    "Secondary image checksum failed\n");
7648 		goto check_valid_image;
7649 	}
7650 
7651 	valid_sec_image = true;
7652 
7653 	if (sec_image_status.image_status_mask & 1) {
7654 		ql_dbg(ql_dbg_init, vha, 0x018d,
7655 		    "Secondary image is active\n");
7656 		active_sec_image = true;
7657 	}
7658 
7659 check_valid_image:
7660 	if (valid_pri_image && active_pri_image)
7661 		active_regions->global = QLA27XX_PRIMARY_IMAGE;
7662 
7663 	if (valid_sec_image && active_sec_image) {
7664 		if (!active_regions->global ||
7665 		    qla27xx_compare_image_generation(
7666 			&pri_image_status, &sec_image_status) < 0) {
7667 			active_regions->global = QLA27XX_SECONDARY_IMAGE;
7668 		}
7669 	}
7670 
7671 	ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
7672 	    active_regions->global == QLA27XX_DEFAULT_IMAGE ?
7673 		"default (boot/fw)" :
7674 	    active_regions->global == QLA27XX_PRIMARY_IMAGE ?
7675 		"primary" :
7676 	    active_regions->global == QLA27XX_SECONDARY_IMAGE ?
7677 		"secondary" : "invalid",
7678 	    active_regions->global);
7679 }
7680 
7681 bool qla24xx_risc_firmware_invalid(uint32_t *dword)
7682 {
7683 	return
7684 	    !(dword[4] | dword[5] | dword[6] | dword[7]) ||
7685 	    !(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
7686 }
7687 
7688 static int
7689 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
7690     uint32_t faddr)
7691 {
7692 	int rval;
7693 	uint templates, segments, fragment;
7694 	ulong i;
7695 	uint j;
7696 	ulong dlen;
7697 	uint32_t *dcode;
7698 	uint32_t risc_addr, risc_size, risc_attr = 0;
7699 	struct qla_hw_data *ha = vha->hw;
7700 	struct req_que *req = ha->req_q_map[0];
7701 	struct fwdt *fwdt = ha->fwdt;
7702 
7703 	ql_dbg(ql_dbg_init, vha, 0x008b,
7704 	    "FW: Loading firmware from flash (%x).\n", faddr);
7705 
7706 	dcode = (void *)req->ring;
7707 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
7708 	if (qla24xx_risc_firmware_invalid(dcode)) {
7709 		ql_log(ql_log_fatal, vha, 0x008c,
7710 		    "Unable to verify the integrity of flash firmware "
7711 		    "image.\n");
7712 		ql_log(ql_log_fatal, vha, 0x008d,
7713 		    "Firmware data: %08x %08x %08x %08x.\n",
7714 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7715 
7716 		return QLA_FUNCTION_FAILED;
7717 	}
7718 
7719 	dcode = (void *)req->ring;
7720 	*srisc_addr = 0;
7721 	segments = FA_RISC_CODE_SEGMENTS;
7722 	for (j = 0; j < segments; j++) {
7723 		ql_dbg(ql_dbg_init, vha, 0x008d,
7724 		    "-> Loading segment %u...\n", j);
7725 		qla24xx_read_flash_data(vha, dcode, faddr, 10);
7726 		risc_addr = be32_to_cpu(dcode[2]);
7727 		risc_size = be32_to_cpu(dcode[3]);
7728 		if (!*srisc_addr) {
7729 			*srisc_addr = risc_addr;
7730 			risc_attr = be32_to_cpu(dcode[9]);
7731 		}
7732 
7733 		dlen = ha->fw_transfer_size >> 2;
7734 		for (fragment = 0; risc_size; fragment++) {
7735 			if (dlen > risc_size)
7736 				dlen = risc_size;
7737 
7738 			ql_dbg(ql_dbg_init, vha, 0x008e,
7739 			    "-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
7740 			    fragment, risc_addr, faddr, dlen);
7741 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
7742 			for (i = 0; i < dlen; i++)
7743 				dcode[i] = swab32(dcode[i]);
7744 
7745 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
7746 			if (rval) {
7747 				ql_log(ql_log_fatal, vha, 0x008f,
7748 				    "-> Failed load firmware fragment %u.\n",
7749 				    fragment);
7750 				return QLA_FUNCTION_FAILED;
7751 			}
7752 
7753 			faddr += dlen;
7754 			risc_addr += dlen;
7755 			risc_size -= dlen;
7756 		}
7757 	}
7758 
7759 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
7760 		return QLA_SUCCESS;
7761 
7762 	templates = (risc_attr & BIT_9) ? 2 : 1;
7763 	ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
7764 	for (j = 0; j < templates; j++, fwdt++) {
7765 		if (fwdt->template)
7766 			vfree(fwdt->template);
7767 		fwdt->template = NULL;
7768 		fwdt->length = 0;
7769 
7770 		dcode = (void *)req->ring;
7771 		qla24xx_read_flash_data(vha, dcode, faddr, 7);
7772 		risc_size = be32_to_cpu(dcode[2]);
7773 		ql_dbg(ql_dbg_init, vha, 0x0161,
7774 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
7775 		    j, faddr, risc_size);
7776 		if (!risc_size || !~risc_size) {
7777 			ql_dbg(ql_dbg_init, vha, 0x0162,
7778 			    "-> fwdt%u failed to read array\n", j);
7779 			goto failed;
7780 		}
7781 
7782 		/* skip header and ignore checksum */
7783 		faddr += 7;
7784 		risc_size -= 8;
7785 
7786 		ql_dbg(ql_dbg_init, vha, 0x0163,
7787 		    "-> fwdt%u template allocate template %#x words...\n",
7788 		    j, risc_size);
7789 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
7790 		if (!fwdt->template) {
7791 			ql_log(ql_log_warn, vha, 0x0164,
7792 			    "-> fwdt%u failed allocate template.\n", j);
7793 			goto failed;
7794 		}
7795 
7796 		dcode = fwdt->template;
7797 		qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
7798 
7799 		if (!qla27xx_fwdt_template_valid(dcode)) {
7800 			ql_log(ql_log_warn, vha, 0x0165,
7801 			    "-> fwdt%u failed template validate\n", j);
7802 			goto failed;
7803 		}
7804 
7805 		dlen = qla27xx_fwdt_template_size(dcode);
7806 		ql_dbg(ql_dbg_init, vha, 0x0166,
7807 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
7808 		    j, dlen, dlen / sizeof(*dcode));
7809 		if (dlen > risc_size * sizeof(*dcode)) {
7810 			ql_log(ql_log_warn, vha, 0x0167,
7811 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
7812 			    j, dlen - risc_size * sizeof(*dcode));
7813 			goto failed;
7814 		}
7815 
7816 		fwdt->length = dlen;
7817 		ql_dbg(ql_dbg_init, vha, 0x0168,
7818 		    "-> fwdt%u loaded template ok\n", j);
7819 
7820 		faddr += risc_size + 1;
7821 	}
7822 
7823 	return QLA_SUCCESS;
7824 
7825 failed:
7826 	if (fwdt->template)
7827 		vfree(fwdt->template);
7828 	fwdt->template = NULL;
7829 	fwdt->length = 0;
7830 
7831 	return QLA_SUCCESS;
7832 }
7833 
7834 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
7835 
7836 int
7837 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7838 {
7839 	int	rval;
7840 	int	i, fragment;
7841 	uint16_t *wcode, *fwcode;
7842 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
7843 	struct fw_blob *blob;
7844 	struct qla_hw_data *ha = vha->hw;
7845 	struct req_que *req = ha->req_q_map[0];
7846 
7847 	/* Load firmware blob. */
7848 	blob = qla2x00_request_firmware(vha);
7849 	if (!blob) {
7850 		ql_log(ql_log_info, vha, 0x0083,
7851 		    "Firmware image unavailable.\n");
7852 		ql_log(ql_log_info, vha, 0x0084,
7853 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
7854 		return QLA_FUNCTION_FAILED;
7855 	}
7856 
7857 	rval = QLA_SUCCESS;
7858 
7859 	wcode = (uint16_t *)req->ring;
7860 	*srisc_addr = 0;
7861 	fwcode = (uint16_t *)blob->fw->data;
7862 	fwclen = 0;
7863 
7864 	/* Validate firmware image by checking version. */
7865 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
7866 		ql_log(ql_log_fatal, vha, 0x0085,
7867 		    "Unable to verify integrity of firmware image (%zd).\n",
7868 		    blob->fw->size);
7869 		goto fail_fw_integrity;
7870 	}
7871 	for (i = 0; i < 4; i++)
7872 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
7873 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
7874 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
7875 		wcode[2] == 0 && wcode[3] == 0)) {
7876 		ql_log(ql_log_fatal, vha, 0x0086,
7877 		    "Unable to verify integrity of firmware image.\n");
7878 		ql_log(ql_log_fatal, vha, 0x0087,
7879 		    "Firmware data: %04x %04x %04x %04x.\n",
7880 		    wcode[0], wcode[1], wcode[2], wcode[3]);
7881 		goto fail_fw_integrity;
7882 	}
7883 
7884 	seg = blob->segs;
7885 	while (*seg && rval == QLA_SUCCESS) {
7886 		risc_addr = *seg;
7887 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
7888 		risc_size = be16_to_cpu(fwcode[3]);
7889 
7890 		/* Validate firmware image size. */
7891 		fwclen += risc_size * sizeof(uint16_t);
7892 		if (blob->fw->size < fwclen) {
7893 			ql_log(ql_log_fatal, vha, 0x0088,
7894 			    "Unable to verify integrity of firmware image "
7895 			    "(%zd).\n", blob->fw->size);
7896 			goto fail_fw_integrity;
7897 		}
7898 
7899 		fragment = 0;
7900 		while (risc_size > 0 && rval == QLA_SUCCESS) {
7901 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
7902 			if (wlen > risc_size)
7903 				wlen = risc_size;
7904 			ql_dbg(ql_dbg_init, vha, 0x0089,
7905 			    "Loading risc segment@ risc addr %x number of "
7906 			    "words 0x%x.\n", risc_addr, wlen);
7907 
7908 			for (i = 0; i < wlen; i++)
7909 				wcode[i] = swab16(fwcode[i]);
7910 
7911 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
7912 			    wlen);
7913 			if (rval) {
7914 				ql_log(ql_log_fatal, vha, 0x008a,
7915 				    "Failed to load segment %d of firmware.\n",
7916 				    fragment);
7917 				break;
7918 			}
7919 
7920 			fwcode += wlen;
7921 			risc_addr += wlen;
7922 			risc_size -= wlen;
7923 			fragment++;
7924 		}
7925 
7926 		/* Next segment. */
7927 		seg++;
7928 	}
7929 	return rval;
7930 
7931 fail_fw_integrity:
7932 	return QLA_FUNCTION_FAILED;
7933 }
7934 
7935 static int
7936 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7937 {
7938 	int	rval;
7939 	uint templates, segments, fragment;
7940 	uint32_t *dcode;
7941 	ulong dlen;
7942 	uint32_t risc_addr, risc_size, risc_attr = 0;
7943 	ulong i;
7944 	uint j;
7945 	struct fw_blob *blob;
7946 	uint32_t *fwcode;
7947 	struct qla_hw_data *ha = vha->hw;
7948 	struct req_que *req = ha->req_q_map[0];
7949 	struct fwdt *fwdt = ha->fwdt;
7950 
7951 	ql_dbg(ql_dbg_init, vha, 0x0090,
7952 	    "-> FW: Loading via request-firmware.\n");
7953 
7954 	blob = qla2x00_request_firmware(vha);
7955 	if (!blob) {
7956 		ql_log(ql_log_warn, vha, 0x0092,
7957 		    "-> Firmware file not found.\n");
7958 
7959 		return QLA_FUNCTION_FAILED;
7960 	}
7961 
7962 	fwcode = (void *)blob->fw->data;
7963 	dcode = fwcode;
7964 	if (qla24xx_risc_firmware_invalid(dcode)) {
7965 		ql_log(ql_log_fatal, vha, 0x0093,
7966 		    "Unable to verify integrity of firmware image (%zd).\n",
7967 		    blob->fw->size);
7968 		ql_log(ql_log_fatal, vha, 0x0095,
7969 		    "Firmware data: %08x %08x %08x %08x.\n",
7970 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7971 		return QLA_FUNCTION_FAILED;
7972 	}
7973 
7974 	dcode = (void *)req->ring;
7975 	*srisc_addr = 0;
7976 	segments = FA_RISC_CODE_SEGMENTS;
7977 	for (j = 0; j < segments; j++) {
7978 		ql_dbg(ql_dbg_init, vha, 0x0096,
7979 		    "-> Loading segment %u...\n", j);
7980 		risc_addr = be32_to_cpu(fwcode[2]);
7981 		risc_size = be32_to_cpu(fwcode[3]);
7982 
7983 		if (!*srisc_addr) {
7984 			*srisc_addr = risc_addr;
7985 			risc_attr = be32_to_cpu(fwcode[9]);
7986 		}
7987 
7988 		dlen = ha->fw_transfer_size >> 2;
7989 		for (fragment = 0; risc_size; fragment++) {
7990 			if (dlen > risc_size)
7991 				dlen = risc_size;
7992 
7993 			ql_dbg(ql_dbg_init, vha, 0x0097,
7994 			    "-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
7995 			    fragment, risc_addr,
7996 			    (uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
7997 			    dlen);
7998 
7999 			for (i = 0; i < dlen; i++)
8000 				dcode[i] = swab32(fwcode[i]);
8001 
8002 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8003 			if (rval) {
8004 				ql_log(ql_log_fatal, vha, 0x0098,
8005 				    "-> Failed load firmware fragment %u.\n",
8006 				    fragment);
8007 				return QLA_FUNCTION_FAILED;
8008 			}
8009 
8010 			fwcode += dlen;
8011 			risc_addr += dlen;
8012 			risc_size -= dlen;
8013 		}
8014 	}
8015 
8016 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8017 		return QLA_SUCCESS;
8018 
8019 	templates = (risc_attr & BIT_9) ? 2 : 1;
8020 	ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
8021 	for (j = 0; j < templates; j++, fwdt++) {
8022 		if (fwdt->template)
8023 			vfree(fwdt->template);
8024 		fwdt->template = NULL;
8025 		fwdt->length = 0;
8026 
8027 		risc_size = be32_to_cpu(fwcode[2]);
8028 		ql_dbg(ql_dbg_init, vha, 0x0171,
8029 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8030 		    j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
8031 		    risc_size);
8032 		if (!risc_size || !~risc_size) {
8033 			ql_dbg(ql_dbg_init, vha, 0x0172,
8034 			    "-> fwdt%u failed to read array\n", j);
8035 			goto failed;
8036 		}
8037 
8038 		/* skip header and ignore checksum */
8039 		fwcode += 7;
8040 		risc_size -= 8;
8041 
8042 		ql_dbg(ql_dbg_init, vha, 0x0173,
8043 		    "-> fwdt%u template allocate template %#x words...\n",
8044 		    j, risc_size);
8045 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8046 		if (!fwdt->template) {
8047 			ql_log(ql_log_warn, vha, 0x0174,
8048 			    "-> fwdt%u failed allocate template.\n", j);
8049 			goto failed;
8050 		}
8051 
8052 		dcode = fwdt->template;
8053 		for (i = 0; i < risc_size; i++)
8054 			dcode[i] = fwcode[i];
8055 
8056 		if (!qla27xx_fwdt_template_valid(dcode)) {
8057 			ql_log(ql_log_warn, vha, 0x0175,
8058 			    "-> fwdt%u failed template validate\n", j);
8059 			goto failed;
8060 		}
8061 
8062 		dlen = qla27xx_fwdt_template_size(dcode);
8063 		ql_dbg(ql_dbg_init, vha, 0x0176,
8064 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8065 		    j, dlen, dlen / sizeof(*dcode));
8066 		if (dlen > risc_size * sizeof(*dcode)) {
8067 			ql_log(ql_log_warn, vha, 0x0177,
8068 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8069 			    j, dlen - risc_size * sizeof(*dcode));
8070 			goto failed;
8071 		}
8072 
8073 		fwdt->length = dlen;
8074 		ql_dbg(ql_dbg_init, vha, 0x0178,
8075 		    "-> fwdt%u loaded template ok\n", j);
8076 
8077 		fwcode += risc_size + 1;
8078 	}
8079 
8080 	return QLA_SUCCESS;
8081 
8082 failed:
8083 	if (fwdt->template)
8084 		vfree(fwdt->template);
8085 	fwdt->template = NULL;
8086 	fwdt->length = 0;
8087 
8088 	return QLA_SUCCESS;
8089 }
8090 
8091 int
8092 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8093 {
8094 	int rval;
8095 
8096 	if (ql2xfwloadbin == 1)
8097 		return qla81xx_load_risc(vha, srisc_addr);
8098 
8099 	/*
8100 	 * FW Load priority:
8101 	 * 1) Firmware via request-firmware interface (.bin file).
8102 	 * 2) Firmware residing in flash.
8103 	 */
8104 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8105 	if (rval == QLA_SUCCESS)
8106 		return rval;
8107 
8108 	return qla24xx_load_risc_flash(vha, srisc_addr,
8109 	    vha->hw->flt_region_fw);
8110 }
8111 
8112 int
8113 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8114 {
8115 	int rval;
8116 	struct qla_hw_data *ha = vha->hw;
8117 	struct active_regions active_regions = { };
8118 
8119 	if (ql2xfwloadbin == 2)
8120 		goto try_blob_fw;
8121 
8122 	/* FW Load priority:
8123 	 * 1) Firmware residing in flash.
8124 	 * 2) Firmware via request-firmware interface (.bin file).
8125 	 * 3) Golden-Firmware residing in flash -- (limited operation).
8126 	 */
8127 
8128 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8129 		goto try_primary_fw;
8130 
8131 	qla27xx_get_active_image(vha, &active_regions);
8132 
8133 	if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
8134 		goto try_primary_fw;
8135 
8136 	ql_dbg(ql_dbg_init, vha, 0x008b,
8137 	    "Loading secondary firmware image.\n");
8138 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
8139 	if (!rval)
8140 		return rval;
8141 
8142 try_primary_fw:
8143 	ql_dbg(ql_dbg_init, vha, 0x008b,
8144 	    "Loading primary firmware image.\n");
8145 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
8146 	if (!rval)
8147 		return rval;
8148 
8149 try_blob_fw:
8150 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8151 	if (!rval || !ha->flt_region_gold_fw)
8152 		return rval;
8153 
8154 	ql_log(ql_log_info, vha, 0x0099,
8155 	    "Attempting to fallback to golden firmware.\n");
8156 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
8157 	if (rval)
8158 		return rval;
8159 
8160 	ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
8161 	ha->flags.running_gold_fw = 1;
8162 	return rval;
8163 }
8164 
8165 void
8166 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
8167 {
8168 	int ret, retries;
8169 	struct qla_hw_data *ha = vha->hw;
8170 
8171 	if (ha->flags.pci_channel_io_perm_failure)
8172 		return;
8173 	if (!IS_FWI2_CAPABLE(ha))
8174 		return;
8175 	if (!ha->fw_major_version)
8176 		return;
8177 	if (!ha->flags.fw_started)
8178 		return;
8179 
8180 	ret = qla2x00_stop_firmware(vha);
8181 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
8182 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
8183 		ha->isp_ops->reset_chip(vha);
8184 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
8185 			continue;
8186 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
8187 			continue;
8188 		ql_log(ql_log_info, vha, 0x8015,
8189 		    "Attempting retry of stop-firmware command.\n");
8190 		ret = qla2x00_stop_firmware(vha);
8191 	}
8192 
8193 	QLA_FW_STOPPED(ha);
8194 	ha->flags.fw_init_done = 0;
8195 }
8196 
8197 int
8198 qla24xx_configure_vhba(scsi_qla_host_t *vha)
8199 {
8200 	int rval = QLA_SUCCESS;
8201 	int rval2;
8202 	uint16_t mb[MAILBOX_REGISTER_COUNT];
8203 	struct qla_hw_data *ha = vha->hw;
8204 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8205 
8206 	if (!vha->vp_idx)
8207 		return -EINVAL;
8208 
8209 	rval = qla2x00_fw_ready(base_vha);
8210 
8211 	if (rval == QLA_SUCCESS) {
8212 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8213 		qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8214 	}
8215 
8216 	vha->flags.management_server_logged_in = 0;
8217 
8218 	/* Login to SNS first */
8219 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
8220 	    BIT_1);
8221 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
8222 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
8223 			ql_dbg(ql_dbg_init, vha, 0x0120,
8224 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
8225 			    NPH_SNS, rval2);
8226 		else
8227 			ql_dbg(ql_dbg_init, vha, 0x0103,
8228 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
8229 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
8230 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
8231 		return (QLA_FUNCTION_FAILED);
8232 	}
8233 
8234 	atomic_set(&vha->loop_down_timer, 0);
8235 	atomic_set(&vha->loop_state, LOOP_UP);
8236 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8237 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
8238 	rval = qla2x00_loop_resync(base_vha);
8239 
8240 	return rval;
8241 }
8242 
8243 /* 84XX Support **************************************************************/
8244 
8245 static LIST_HEAD(qla_cs84xx_list);
8246 static DEFINE_MUTEX(qla_cs84xx_mutex);
8247 
8248 static struct qla_chip_state_84xx *
8249 qla84xx_get_chip(struct scsi_qla_host *vha)
8250 {
8251 	struct qla_chip_state_84xx *cs84xx;
8252 	struct qla_hw_data *ha = vha->hw;
8253 
8254 	mutex_lock(&qla_cs84xx_mutex);
8255 
8256 	/* Find any shared 84xx chip. */
8257 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
8258 		if (cs84xx->bus == ha->pdev->bus) {
8259 			kref_get(&cs84xx->kref);
8260 			goto done;
8261 		}
8262 	}
8263 
8264 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
8265 	if (!cs84xx)
8266 		goto done;
8267 
8268 	kref_init(&cs84xx->kref);
8269 	spin_lock_init(&cs84xx->access_lock);
8270 	mutex_init(&cs84xx->fw_update_mutex);
8271 	cs84xx->bus = ha->pdev->bus;
8272 
8273 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
8274 done:
8275 	mutex_unlock(&qla_cs84xx_mutex);
8276 	return cs84xx;
8277 }
8278 
8279 static void
8280 __qla84xx_chip_release(struct kref *kref)
8281 {
8282 	struct qla_chip_state_84xx *cs84xx =
8283 	    container_of(kref, struct qla_chip_state_84xx, kref);
8284 
8285 	mutex_lock(&qla_cs84xx_mutex);
8286 	list_del(&cs84xx->list);
8287 	mutex_unlock(&qla_cs84xx_mutex);
8288 	kfree(cs84xx);
8289 }
8290 
8291 void
8292 qla84xx_put_chip(struct scsi_qla_host *vha)
8293 {
8294 	struct qla_hw_data *ha = vha->hw;
8295 
8296 	if (ha->cs84xx)
8297 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
8298 }
8299 
8300 static int
8301 qla84xx_init_chip(scsi_qla_host_t *vha)
8302 {
8303 	int rval;
8304 	uint16_t status[2];
8305 	struct qla_hw_data *ha = vha->hw;
8306 
8307 	mutex_lock(&ha->cs84xx->fw_update_mutex);
8308 
8309 	rval = qla84xx_verify_chip(vha, status);
8310 
8311 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
8312 
8313 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
8314 	    QLA_SUCCESS;
8315 }
8316 
8317 /* 81XX Support **************************************************************/
8318 
8319 int
8320 qla81xx_nvram_config(scsi_qla_host_t *vha)
8321 {
8322 	int   rval;
8323 	struct init_cb_81xx *icb;
8324 	struct nvram_81xx *nv;
8325 	uint32_t *dptr;
8326 	uint8_t  *dptr1, *dptr2;
8327 	uint32_t chksum;
8328 	uint16_t cnt;
8329 	struct qla_hw_data *ha = vha->hw;
8330 	uint32_t faddr;
8331 	struct active_regions active_regions = { };
8332 
8333 	rval = QLA_SUCCESS;
8334 	icb = (struct init_cb_81xx *)ha->init_cb;
8335 	nv = ha->nvram;
8336 
8337 	/* Determine NVRAM starting address. */
8338 	ha->nvram_size = sizeof(*nv);
8339 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
8340 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
8341 		ha->vpd_size = FA_VPD_SIZE_82XX;
8342 
8343 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
8344 		qla28xx_get_aux_images(vha, &active_regions);
8345 
8346 	/* Get VPD data into cache */
8347 	ha->vpd = ha->nvram + VPD_OFFSET;
8348 
8349 	faddr = ha->flt_region_vpd;
8350 	if (IS_QLA28XX(ha)) {
8351 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8352 			faddr = ha->flt_region_vpd_sec;
8353 		ql_dbg(ql_dbg_init, vha, 0x0110,
8354 		    "Loading %s nvram image.\n",
8355 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8356 		    "primary" : "secondary");
8357 	}
8358 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
8359 
8360 	/* Get NVRAM data into cache and calculate checksum. */
8361 	faddr = ha->flt_region_nvram;
8362 	if (IS_QLA28XX(ha)) {
8363 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8364 			faddr = ha->flt_region_nvram_sec;
8365 	}
8366 	ql_dbg(ql_dbg_init, vha, 0x0110,
8367 	    "Loading %s nvram image.\n",
8368 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8369 	    "primary" : "secondary");
8370 	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
8371 
8372 	dptr = (uint32_t *)nv;
8373 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
8374 		chksum += le32_to_cpu(*dptr);
8375 
8376 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
8377 	    "Contents of NVRAM:\n");
8378 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
8379 	    nv, ha->nvram_size);
8380 
8381 	/* Bad NVRAM data, set defaults parameters. */
8382 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
8383 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
8384 		/* Reset NVRAM data. */
8385 		ql_log(ql_log_info, vha, 0x0073,
8386 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
8387 		    chksum, nv->id, le16_to_cpu(nv->nvram_version));
8388 		ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
8389 		ql_log(ql_log_info, vha, 0x0074,
8390 		    "Falling back to functioning (yet invalid -- WWPN) "
8391 		    "defaults.\n");
8392 
8393 		/*
8394 		 * Set default initialization control block.
8395 		 */
8396 		memset(nv, 0, ha->nvram_size);
8397 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
8398 		nv->version = cpu_to_le16(ICB_VERSION);
8399 		nv->frame_payload_size = 2048;
8400 		nv->execution_throttle = cpu_to_le16(0xFFFF);
8401 		nv->exchange_count = cpu_to_le16(0);
8402 		nv->port_name[0] = 0x21;
8403 		nv->port_name[1] = 0x00 + ha->port_no + 1;
8404 		nv->port_name[2] = 0x00;
8405 		nv->port_name[3] = 0xe0;
8406 		nv->port_name[4] = 0x8b;
8407 		nv->port_name[5] = 0x1c;
8408 		nv->port_name[6] = 0x55;
8409 		nv->port_name[7] = 0x86;
8410 		nv->node_name[0] = 0x20;
8411 		nv->node_name[1] = 0x00;
8412 		nv->node_name[2] = 0x00;
8413 		nv->node_name[3] = 0xe0;
8414 		nv->node_name[4] = 0x8b;
8415 		nv->node_name[5] = 0x1c;
8416 		nv->node_name[6] = 0x55;
8417 		nv->node_name[7] = 0x86;
8418 		nv->login_retry_count = cpu_to_le16(8);
8419 		nv->interrupt_delay_timer = cpu_to_le16(0);
8420 		nv->login_timeout = cpu_to_le16(0);
8421 		nv->firmware_options_1 =
8422 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
8423 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
8424 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
8425 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
8426 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
8427 		nv->efi_parameters = cpu_to_le32(0);
8428 		nv->reset_delay = 5;
8429 		nv->max_luns_per_target = cpu_to_le16(128);
8430 		nv->port_down_retry_count = cpu_to_le16(30);
8431 		nv->link_down_timeout = cpu_to_le16(180);
8432 		nv->enode_mac[0] = 0x00;
8433 		nv->enode_mac[1] = 0xC0;
8434 		nv->enode_mac[2] = 0xDD;
8435 		nv->enode_mac[3] = 0x04;
8436 		nv->enode_mac[4] = 0x05;
8437 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
8438 
8439 		rval = 1;
8440 	}
8441 
8442 	if (IS_T10_PI_CAPABLE(ha))
8443 		nv->frame_payload_size &= ~7;
8444 
8445 	qlt_81xx_config_nvram_stage1(vha, nv);
8446 
8447 	/* Reset Initialization control block */
8448 	memset(icb, 0, ha->init_cb_size);
8449 
8450 	/* Copy 1st segment. */
8451 	dptr1 = (uint8_t *)icb;
8452 	dptr2 = (uint8_t *)&nv->version;
8453 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
8454 	while (cnt--)
8455 		*dptr1++ = *dptr2++;
8456 
8457 	icb->login_retry_count = nv->login_retry_count;
8458 
8459 	/* Copy 2nd segment. */
8460 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
8461 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
8462 	cnt = (uint8_t *)&icb->reserved_5 -
8463 	    (uint8_t *)&icb->interrupt_delay_timer;
8464 	while (cnt--)
8465 		*dptr1++ = *dptr2++;
8466 
8467 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
8468 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
8469 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
8470 		icb->enode_mac[0] = 0x00;
8471 		icb->enode_mac[1] = 0xC0;
8472 		icb->enode_mac[2] = 0xDD;
8473 		icb->enode_mac[3] = 0x04;
8474 		icb->enode_mac[4] = 0x05;
8475 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
8476 	}
8477 
8478 	/* Use extended-initialization control block. */
8479 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
8480 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
8481 	/*
8482 	 * Setup driver NVRAM options.
8483 	 */
8484 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
8485 	    "QLE8XXX");
8486 
8487 	qlt_81xx_config_nvram_stage2(vha, icb);
8488 
8489 	/* Use alternate WWN? */
8490 	if (nv->host_p & cpu_to_le32(BIT_15)) {
8491 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
8492 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
8493 	}
8494 
8495 	/* Prepare nodename */
8496 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
8497 		/*
8498 		 * Firmware will apply the following mask if the nodename was
8499 		 * not provided.
8500 		 */
8501 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
8502 		icb->node_name[0] &= 0xF0;
8503 	}
8504 
8505 	/* Set host adapter parameters. */
8506 	ha->flags.disable_risc_code_load = 0;
8507 	ha->flags.enable_lip_reset = 0;
8508 	ha->flags.enable_lip_full_login =
8509 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
8510 	ha->flags.enable_target_reset =
8511 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
8512 	ha->flags.enable_led_scheme = 0;
8513 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
8514 
8515 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
8516 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
8517 
8518 	/* save HBA serial number */
8519 	ha->serial0 = icb->port_name[5];
8520 	ha->serial1 = icb->port_name[6];
8521 	ha->serial2 = icb->port_name[7];
8522 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
8523 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
8524 
8525 	icb->execution_throttle = cpu_to_le16(0xFFFF);
8526 
8527 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
8528 
8529 	/* Set minimum login_timeout to 4 seconds. */
8530 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
8531 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
8532 	if (le16_to_cpu(nv->login_timeout) < 4)
8533 		nv->login_timeout = cpu_to_le16(4);
8534 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
8535 
8536 	/* Set minimum RATOV to 100 tenths of a second. */
8537 	ha->r_a_tov = 100;
8538 
8539 	ha->loop_reset_delay = nv->reset_delay;
8540 
8541 	/* Link Down Timeout = 0:
8542 	 *
8543 	 *	When Port Down timer expires we will start returning
8544 	 *	I/O's to OS with "DID_NO_CONNECT".
8545 	 *
8546 	 * Link Down Timeout != 0:
8547 	 *
8548 	 *	 The driver waits for the link to come up after link down
8549 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
8550 	 */
8551 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
8552 		ha->loop_down_abort_time =
8553 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
8554 	} else {
8555 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
8556 		ha->loop_down_abort_time =
8557 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
8558 	}
8559 
8560 	/* Need enough time to try and get the port back. */
8561 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
8562 	if (qlport_down_retry)
8563 		ha->port_down_retry_count = qlport_down_retry;
8564 
8565 	/* Set login_retry_count */
8566 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
8567 	if (ha->port_down_retry_count ==
8568 	    le16_to_cpu(nv->port_down_retry_count) &&
8569 	    ha->port_down_retry_count > 3)
8570 		ha->login_retry_count = ha->port_down_retry_count;
8571 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
8572 		ha->login_retry_count = ha->port_down_retry_count;
8573 	if (ql2xloginretrycount)
8574 		ha->login_retry_count = ql2xloginretrycount;
8575 
8576 	/* if not running MSI-X we need handshaking on interrupts */
8577 	if (!vha->hw->flags.msix_enabled &&
8578 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
8579 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
8580 
8581 	/* Enable ZIO. */
8582 	if (!vha->flags.init_done) {
8583 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
8584 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
8585 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
8586 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
8587 	}
8588 	icb->firmware_options_2 &= cpu_to_le32(
8589 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
8590 	vha->flags.process_response_queue = 0;
8591 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
8592 		ha->zio_mode = QLA_ZIO_MODE_6;
8593 
8594 		ql_log(ql_log_info, vha, 0x0075,
8595 		    "ZIO mode %d enabled; timer delay (%d us).\n",
8596 		    ha->zio_mode,
8597 		    ha->zio_timer * 100);
8598 
8599 		icb->firmware_options_2 |= cpu_to_le32(
8600 		    (uint32_t)ha->zio_mode);
8601 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
8602 		vha->flags.process_response_queue = 1;
8603 	}
8604 
8605 	 /* enable RIDA Format2 */
8606 	icb->firmware_options_3 |= BIT_0;
8607 
8608 	/* N2N: driver will initiate Login instead of FW */
8609 	icb->firmware_options_3 |= BIT_8;
8610 
8611 	/* Determine NVMe/FCP priority for target ports */
8612 	ha->fc4_type_priority = qla2xxx_get_fc4_priority(vha);
8613 
8614 	if (rval) {
8615 		ql_log(ql_log_warn, vha, 0x0076,
8616 		    "NVRAM configuration failed.\n");
8617 	}
8618 	return (rval);
8619 }
8620 
8621 int
8622 qla82xx_restart_isp(scsi_qla_host_t *vha)
8623 {
8624 	int status, rval;
8625 	struct qla_hw_data *ha = vha->hw;
8626 	struct scsi_qla_host *vp;
8627 	unsigned long flags;
8628 
8629 	status = qla2x00_init_rings(vha);
8630 	if (!status) {
8631 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8632 		ha->flags.chip_reset_done = 1;
8633 
8634 		status = qla2x00_fw_ready(vha);
8635 		if (!status) {
8636 			/* Issue a marker after FW becomes ready. */
8637 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8638 			vha->flags.online = 1;
8639 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8640 		}
8641 
8642 		/* if no cable then assume it's good */
8643 		if ((vha->device_flags & DFLG_NO_CABLE))
8644 			status = 0;
8645 	}
8646 
8647 	if (!status) {
8648 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8649 
8650 		if (!atomic_read(&vha->loop_down_timer)) {
8651 			/*
8652 			 * Issue marker command only when we are going
8653 			 * to start the I/O .
8654 			 */
8655 			vha->marker_needed = 1;
8656 		}
8657 
8658 		ha->isp_ops->enable_intrs(ha);
8659 
8660 		ha->isp_abort_cnt = 0;
8661 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
8662 
8663 		/* Update the firmware version */
8664 		status = qla82xx_check_md_needed(vha);
8665 
8666 		if (ha->fce) {
8667 			ha->flags.fce_enabled = 1;
8668 			memset(ha->fce, 0,
8669 			    fce_calc_size(ha->fce_bufs));
8670 			rval = qla2x00_enable_fce_trace(vha,
8671 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
8672 			    &ha->fce_bufs);
8673 			if (rval) {
8674 				ql_log(ql_log_warn, vha, 0x8001,
8675 				    "Unable to reinitialize FCE (%d).\n",
8676 				    rval);
8677 				ha->flags.fce_enabled = 0;
8678 			}
8679 		}
8680 
8681 		if (ha->eft) {
8682 			memset(ha->eft, 0, EFT_SIZE);
8683 			rval = qla2x00_enable_eft_trace(vha,
8684 			    ha->eft_dma, EFT_NUM_BUFFERS);
8685 			if (rval) {
8686 				ql_log(ql_log_warn, vha, 0x8010,
8687 				    "Unable to reinitialize EFT (%d).\n",
8688 				    rval);
8689 			}
8690 		}
8691 	}
8692 
8693 	if (!status) {
8694 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
8695 		    "qla82xx_restart_isp succeeded.\n");
8696 
8697 		spin_lock_irqsave(&ha->vport_slock, flags);
8698 		list_for_each_entry(vp, &ha->vp_list, list) {
8699 			if (vp->vp_idx) {
8700 				atomic_inc(&vp->vref_count);
8701 				spin_unlock_irqrestore(&ha->vport_slock, flags);
8702 
8703 				qla2x00_vp_abort_isp(vp);
8704 
8705 				spin_lock_irqsave(&ha->vport_slock, flags);
8706 				atomic_dec(&vp->vref_count);
8707 			}
8708 		}
8709 		spin_unlock_irqrestore(&ha->vport_slock, flags);
8710 
8711 	} else {
8712 		ql_log(ql_log_warn, vha, 0x8016,
8713 		    "qla82xx_restart_isp **** FAILED ****.\n");
8714 	}
8715 
8716 	return status;
8717 }
8718 
8719 /*
8720  * qla24xx_get_fcp_prio
8721  *	Gets the fcp cmd priority value for the logged in port.
8722  *	Looks for a match of the port descriptors within
8723  *	each of the fcp prio config entries. If a match is found,
8724  *	the tag (priority) value is returned.
8725  *
8726  * Input:
8727  *	vha = scsi host structure pointer.
8728  *	fcport = port structure pointer.
8729  *
8730  * Return:
8731  *	non-zero (if found)
8732  *	-1 (if not found)
8733  *
8734  * Context:
8735  * 	Kernel context
8736  */
8737 static int
8738 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8739 {
8740 	int i, entries;
8741 	uint8_t pid_match, wwn_match;
8742 	int priority;
8743 	uint32_t pid1, pid2;
8744 	uint64_t wwn1, wwn2;
8745 	struct qla_fcp_prio_entry *pri_entry;
8746 	struct qla_hw_data *ha = vha->hw;
8747 
8748 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
8749 		return -1;
8750 
8751 	priority = -1;
8752 	entries = ha->fcp_prio_cfg->num_entries;
8753 	pri_entry = &ha->fcp_prio_cfg->entry[0];
8754 
8755 	for (i = 0; i < entries; i++) {
8756 		pid_match = wwn_match = 0;
8757 
8758 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
8759 			pri_entry++;
8760 			continue;
8761 		}
8762 
8763 		/* check source pid for a match */
8764 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
8765 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
8766 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
8767 			if (pid1 == INVALID_PORT_ID)
8768 				pid_match++;
8769 			else if (pid1 == pid2)
8770 				pid_match++;
8771 		}
8772 
8773 		/* check destination pid for a match */
8774 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
8775 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
8776 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
8777 			if (pid1 == INVALID_PORT_ID)
8778 				pid_match++;
8779 			else if (pid1 == pid2)
8780 				pid_match++;
8781 		}
8782 
8783 		/* check source WWN for a match */
8784 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
8785 			wwn1 = wwn_to_u64(vha->port_name);
8786 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
8787 			if (wwn2 == (uint64_t)-1)
8788 				wwn_match++;
8789 			else if (wwn1 == wwn2)
8790 				wwn_match++;
8791 		}
8792 
8793 		/* check destination WWN for a match */
8794 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
8795 			wwn1 = wwn_to_u64(fcport->port_name);
8796 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
8797 			if (wwn2 == (uint64_t)-1)
8798 				wwn_match++;
8799 			else if (wwn1 == wwn2)
8800 				wwn_match++;
8801 		}
8802 
8803 		if (pid_match == 2 || wwn_match == 2) {
8804 			/* Found a matching entry */
8805 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
8806 				priority = pri_entry->tag;
8807 			break;
8808 		}
8809 
8810 		pri_entry++;
8811 	}
8812 
8813 	return priority;
8814 }
8815 
8816 /*
8817  * qla24xx_update_fcport_fcp_prio
8818  *	Activates fcp priority for the logged in fc port
8819  *
8820  * Input:
8821  *	vha = scsi host structure pointer.
8822  *	fcp = port structure pointer.
8823  *
8824  * Return:
8825  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8826  *
8827  * Context:
8828  *	Kernel context.
8829  */
8830 int
8831 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8832 {
8833 	int ret;
8834 	int priority;
8835 	uint16_t mb[5];
8836 
8837 	if (fcport->port_type != FCT_TARGET ||
8838 	    fcport->loop_id == FC_NO_LOOP_ID)
8839 		return QLA_FUNCTION_FAILED;
8840 
8841 	priority = qla24xx_get_fcp_prio(vha, fcport);
8842 	if (priority < 0)
8843 		return QLA_FUNCTION_FAILED;
8844 
8845 	if (IS_P3P_TYPE(vha->hw)) {
8846 		fcport->fcp_prio = priority & 0xf;
8847 		return QLA_SUCCESS;
8848 	}
8849 
8850 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
8851 	if (ret == QLA_SUCCESS) {
8852 		if (fcport->fcp_prio != priority)
8853 			ql_dbg(ql_dbg_user, vha, 0x709e,
8854 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
8855 			    "port_id=%02x%02x%02x.\n", priority,
8856 			    fcport->loop_id, fcport->d_id.b.domain,
8857 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
8858 		fcport->fcp_prio = priority & 0xf;
8859 	} else
8860 		ql_dbg(ql_dbg_user, vha, 0x704f,
8861 		    "Unable to update FCP_CMND priority - ret=0x%x for "
8862 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
8863 		    fcport->d_id.b.domain, fcport->d_id.b.area,
8864 		    fcport->d_id.b.al_pa);
8865 	return  ret;
8866 }
8867 
8868 /*
8869  * qla24xx_update_all_fcp_prio
8870  *	Activates fcp priority for all the logged in ports
8871  *
8872  * Input:
8873  *	ha = adapter block pointer.
8874  *
8875  * Return:
8876  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8877  *
8878  * Context:
8879  *	Kernel context.
8880  */
8881 int
8882 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
8883 {
8884 	int ret;
8885 	fc_port_t *fcport;
8886 
8887 	ret = QLA_FUNCTION_FAILED;
8888 	/* We need to set priority for all logged in ports */
8889 	list_for_each_entry(fcport, &vha->vp_fcports, list)
8890 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
8891 
8892 	return ret;
8893 }
8894 
8895 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
8896 	int vp_idx, bool startqp)
8897 {
8898 	int rsp_id = 0;
8899 	int  req_id = 0;
8900 	int i;
8901 	struct qla_hw_data *ha = vha->hw;
8902 	uint16_t qpair_id = 0;
8903 	struct qla_qpair *qpair = NULL;
8904 	struct qla_msix_entry *msix;
8905 
8906 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
8907 		ql_log(ql_log_warn, vha, 0x00181,
8908 		    "FW/Driver is not multi-queue capable.\n");
8909 		return NULL;
8910 	}
8911 
8912 	if (ql2xmqsupport || ql2xnvmeenable) {
8913 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
8914 		if (qpair == NULL) {
8915 			ql_log(ql_log_warn, vha, 0x0182,
8916 			    "Failed to allocate memory for queue pair.\n");
8917 			return NULL;
8918 		}
8919 
8920 		qpair->hw = vha->hw;
8921 		qpair->vha = vha;
8922 		qpair->qp_lock_ptr = &qpair->qp_lock;
8923 		spin_lock_init(&qpair->qp_lock);
8924 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
8925 
8926 		/* Assign available que pair id */
8927 		mutex_lock(&ha->mq_lock);
8928 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
8929 		if (ha->num_qpairs >= ha->max_qpairs) {
8930 			mutex_unlock(&ha->mq_lock);
8931 			ql_log(ql_log_warn, vha, 0x0183,
8932 			    "No resources to create additional q pair.\n");
8933 			goto fail_qid_map;
8934 		}
8935 		ha->num_qpairs++;
8936 		set_bit(qpair_id, ha->qpair_qid_map);
8937 		ha->queue_pair_map[qpair_id] = qpair;
8938 		qpair->id = qpair_id;
8939 		qpair->vp_idx = vp_idx;
8940 		qpair->fw_started = ha->flags.fw_started;
8941 		INIT_LIST_HEAD(&qpair->hints_list);
8942 		qpair->chip_reset = ha->base_qpair->chip_reset;
8943 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
8944 		qpair->enable_explicit_conf =
8945 		    ha->base_qpair->enable_explicit_conf;
8946 
8947 		for (i = 0; i < ha->msix_count; i++) {
8948 			msix = &ha->msix_entries[i];
8949 			if (msix->in_use)
8950 				continue;
8951 			qpair->msix = msix;
8952 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
8953 			    "Vector %x selected for qpair\n", msix->vector);
8954 			break;
8955 		}
8956 		if (!qpair->msix) {
8957 			ql_log(ql_log_warn, vha, 0x0184,
8958 			    "Out of MSI-X vectors!.\n");
8959 			goto fail_msix;
8960 		}
8961 
8962 		qpair->msix->in_use = 1;
8963 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
8964 		qpair->pdev = ha->pdev;
8965 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
8966 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
8967 
8968 		mutex_unlock(&ha->mq_lock);
8969 
8970 		/* Create response queue first */
8971 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
8972 		if (!rsp_id) {
8973 			ql_log(ql_log_warn, vha, 0x0185,
8974 			    "Failed to create response queue.\n");
8975 			goto fail_rsp;
8976 		}
8977 
8978 		qpair->rsp = ha->rsp_q_map[rsp_id];
8979 
8980 		/* Create request queue */
8981 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
8982 		    startqp);
8983 		if (!req_id) {
8984 			ql_log(ql_log_warn, vha, 0x0186,
8985 			    "Failed to create request queue.\n");
8986 			goto fail_req;
8987 		}
8988 
8989 		qpair->req = ha->req_q_map[req_id];
8990 		qpair->rsp->req = qpair->req;
8991 		qpair->rsp->qpair = qpair;
8992 		/* init qpair to this cpu. Will adjust at run time. */
8993 		qla_cpu_update(qpair, smp_processor_id());
8994 
8995 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
8996 			if (ha->fw_attributes & BIT_4)
8997 				qpair->difdix_supported = 1;
8998 		}
8999 
9000 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
9001 		if (!qpair->srb_mempool) {
9002 			ql_log(ql_log_warn, vha, 0xd036,
9003 			    "Failed to create srb mempool for qpair %d\n",
9004 			    qpair->id);
9005 			goto fail_mempool;
9006 		}
9007 
9008 		/* Mark as online */
9009 		qpair->online = 1;
9010 
9011 		if (!vha->flags.qpairs_available)
9012 			vha->flags.qpairs_available = 1;
9013 
9014 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
9015 		    "Request/Response queue pair created, id %d\n",
9016 		    qpair->id);
9017 		ql_dbg(ql_dbg_init, vha, 0x0187,
9018 		    "Request/Response queue pair created, id %d\n",
9019 		    qpair->id);
9020 	}
9021 	return qpair;
9022 
9023 fail_mempool:
9024 fail_req:
9025 	qla25xx_delete_rsp_que(vha, qpair->rsp);
9026 fail_rsp:
9027 	mutex_lock(&ha->mq_lock);
9028 	qpair->msix->in_use = 0;
9029 	list_del(&qpair->qp_list_elem);
9030 	if (list_empty(&vha->qp_list))
9031 		vha->flags.qpairs_available = 0;
9032 fail_msix:
9033 	ha->queue_pair_map[qpair_id] = NULL;
9034 	clear_bit(qpair_id, ha->qpair_qid_map);
9035 	ha->num_qpairs--;
9036 	mutex_unlock(&ha->mq_lock);
9037 fail_qid_map:
9038 	kfree(qpair);
9039 	return NULL;
9040 }
9041 
9042 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
9043 {
9044 	int ret = QLA_FUNCTION_FAILED;
9045 	struct qla_hw_data *ha = qpair->hw;
9046 
9047 	qpair->delete_in_progress = 1;
9048 
9049 	ret = qla25xx_delete_req_que(vha, qpair->req);
9050 	if (ret != QLA_SUCCESS)
9051 		goto fail;
9052 
9053 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
9054 	if (ret != QLA_SUCCESS)
9055 		goto fail;
9056 
9057 	mutex_lock(&ha->mq_lock);
9058 	ha->queue_pair_map[qpair->id] = NULL;
9059 	clear_bit(qpair->id, ha->qpair_qid_map);
9060 	ha->num_qpairs--;
9061 	list_del(&qpair->qp_list_elem);
9062 	if (list_empty(&vha->qp_list)) {
9063 		vha->flags.qpairs_available = 0;
9064 		vha->flags.qpairs_req_created = 0;
9065 		vha->flags.qpairs_rsp_created = 0;
9066 	}
9067 	mempool_destroy(qpair->srb_mempool);
9068 	kfree(qpair);
9069 	mutex_unlock(&ha->mq_lock);
9070 
9071 	return QLA_SUCCESS;
9072 fail:
9073 	return ret;
9074 }
9075