xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision ca48739e)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * QLogic Fibre Channel HBA Driver
4  * Copyright (c)  2003-2014 QLogic Corporation
5  */
6 #include "qla_def.h"
7 #include "qla_gbl.h"
8 
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <linux/vmalloc.h>
12 
13 #include "qla_devtbl.h"
14 
15 #ifdef CONFIG_SPARC
16 #include <asm/prom.h>
17 #endif
18 
19 #include "qla_target.h"
20 
21 /*
22 *  QLogic ISP2x00 Hardware Support Function Prototypes.
23 */
24 static int qla2x00_isp_firmware(scsi_qla_host_t *);
25 static int qla2x00_setup_chip(scsi_qla_host_t *);
26 static int qla2x00_fw_ready(scsi_qla_host_t *);
27 static int qla2x00_configure_hba(scsi_qla_host_t *);
28 static int qla2x00_configure_loop(scsi_qla_host_t *);
29 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
30 static int qla2x00_configure_fabric(scsi_qla_host_t *);
31 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *);
32 static int qla2x00_restart_isp(scsi_qla_host_t *);
33 
34 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
35 static int qla84xx_init_chip(scsi_qla_host_t *);
36 static int qla25xx_init_queues(struct qla_hw_data *);
37 static int qla24xx_post_prli_work(struct scsi_qla_host*, fc_port_t *);
38 static void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha,
39 				      struct event_arg *ea);
40 static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
41     struct event_arg *);
42 static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
43 
44 /* SRB Extensions ---------------------------------------------------------- */
45 
46 void
47 qla2x00_sp_timeout(struct timer_list *t)
48 {
49 	srb_t *sp = from_timer(sp, t, u.iocb_cmd.timer);
50 	struct srb_iocb *iocb;
51 
52 	WARN_ON(irqs_disabled());
53 	iocb = &sp->u.iocb_cmd;
54 	iocb->timeout(sp);
55 }
56 
57 void qla2x00_sp_free(srb_t *sp)
58 {
59 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
60 
61 	del_timer(&iocb->timer);
62 	qla2x00_rel_sp(sp);
63 }
64 
65 void qla2xxx_rel_done_warning(srb_t *sp, int res)
66 {
67 	WARN_ONCE(1, "Calling done() of an already freed srb %p object\n", sp);
68 }
69 
70 void qla2xxx_rel_free_warning(srb_t *sp)
71 {
72 	WARN_ONCE(1, "Calling free() of an already freed srb %p object\n", sp);
73 }
74 
75 /* Asynchronous Login/Logout Routines -------------------------------------- */
76 
77 unsigned long
78 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
79 {
80 	unsigned long tmo;
81 	struct qla_hw_data *ha = vha->hw;
82 
83 	/* Firmware should use switch negotiated r_a_tov for timeout. */
84 	tmo = ha->r_a_tov / 10 * 2;
85 	if (IS_QLAFX00(ha)) {
86 		tmo = FX00_DEF_RATOV * 2;
87 	} else if (!IS_FWI2_CAPABLE(ha)) {
88 		/*
89 		 * Except for earlier ISPs where the timeout is seeded from the
90 		 * initialization control block.
91 		 */
92 		tmo = ha->login_timeout;
93 	}
94 	return tmo;
95 }
96 
97 static void qla24xx_abort_iocb_timeout(void *data)
98 {
99 	srb_t *sp = data;
100 	struct srb_iocb *abt = &sp->u.iocb_cmd;
101 	struct qla_qpair *qpair = sp->qpair;
102 	u32 handle;
103 	unsigned long flags;
104 
105 	if (sp->cmd_sp)
106 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
107 		    "Abort timeout - cmd hdl=%x, cmd type=%x hdl=%x, type=%x\n",
108 		    sp->cmd_sp->handle, sp->cmd_sp->type,
109 		    sp->handle, sp->type);
110 	else
111 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
112 		    "Abort timeout 2 - hdl=%x, type=%x\n",
113 		    sp->handle, sp->type);
114 
115 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
116 	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
117 		if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
118 		    sp->cmd_sp))
119 			qpair->req->outstanding_cmds[handle] = NULL;
120 
121 		/* removing the abort */
122 		if (qpair->req->outstanding_cmds[handle] == sp) {
123 			qpair->req->outstanding_cmds[handle] = NULL;
124 			break;
125 		}
126 	}
127 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
128 
129 	if (sp->cmd_sp)
130 		sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
131 
132 	abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
133 	sp->done(sp, QLA_OS_TIMER_EXPIRED);
134 }
135 
136 static void qla24xx_abort_sp_done(srb_t *sp, int res)
137 {
138 	struct srb_iocb *abt = &sp->u.iocb_cmd;
139 	srb_t *orig_sp = sp->cmd_sp;
140 
141 	if (orig_sp)
142 		qla_wait_nvme_release_cmd_kref(orig_sp);
143 
144 	del_timer(&sp->u.iocb_cmd.timer);
145 	if (sp->flags & SRB_WAKEUP_ON_COMP)
146 		complete(&abt->u.abt.comp);
147 	else
148 		sp->free(sp);
149 }
150 
151 int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
152 {
153 	scsi_qla_host_t *vha = cmd_sp->vha;
154 	struct srb_iocb *abt_iocb;
155 	srb_t *sp;
156 	int rval = QLA_FUNCTION_FAILED;
157 
158 	sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
159 				  GFP_ATOMIC);
160 	if (!sp)
161 		return rval;
162 
163 	abt_iocb = &sp->u.iocb_cmd;
164 	sp->type = SRB_ABT_CMD;
165 	sp->name = "abort";
166 	sp->qpair = cmd_sp->qpair;
167 	sp->cmd_sp = cmd_sp;
168 	if (wait)
169 		sp->flags = SRB_WAKEUP_ON_COMP;
170 
171 	abt_iocb->timeout = qla24xx_abort_iocb_timeout;
172 	init_completion(&abt_iocb->u.abt.comp);
173 	/* FW can send 2 x ABTS's timeout/20s */
174 	qla2x00_init_timer(sp, 42);
175 
176 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
177 	abt_iocb->u.abt.req_que_no = cpu_to_le16(cmd_sp->qpair->req->id);
178 
179 	sp->done = qla24xx_abort_sp_done;
180 
181 	ql_dbg(ql_dbg_async, vha, 0x507c,
182 	       "Abort command issued - hdl=%x, type=%x\n", cmd_sp->handle,
183 	       cmd_sp->type);
184 
185 	rval = qla2x00_start_sp(sp);
186 	if (rval != QLA_SUCCESS) {
187 		sp->free(sp);
188 		return rval;
189 	}
190 
191 	if (wait) {
192 		wait_for_completion(&abt_iocb->u.abt.comp);
193 		rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
194 			QLA_SUCCESS : QLA_FUNCTION_FAILED;
195 		sp->free(sp);
196 	}
197 
198 	return rval;
199 }
200 
201 void
202 qla2x00_async_iocb_timeout(void *data)
203 {
204 	srb_t *sp = data;
205 	fc_port_t *fcport = sp->fcport;
206 	struct srb_iocb *lio = &sp->u.iocb_cmd;
207 	int rc, h;
208 	unsigned long flags;
209 
210 	if (fcport) {
211 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
212 		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
213 		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
214 
215 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
216 	} else {
217 		pr_info("Async-%s timeout - hdl=%x.\n",
218 		    sp->name, sp->handle);
219 	}
220 
221 	switch (sp->type) {
222 	case SRB_LOGIN_CMD:
223 		rc = qla24xx_async_abort_cmd(sp, false);
224 		if (rc) {
225 			/* Retry as needed. */
226 			lio->u.logio.data[0] = MBS_COMMAND_ERROR;
227 			lio->u.logio.data[1] =
228 				lio->u.logio.flags & SRB_LOGIN_RETRIED ?
229 				QLA_LOGIO_LOGIN_RETRIED : 0;
230 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
231 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
232 			    h++) {
233 				if (sp->qpair->req->outstanding_cmds[h] ==
234 				    sp) {
235 					sp->qpair->req->outstanding_cmds[h] =
236 					    NULL;
237 					break;
238 				}
239 			}
240 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
241 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
242 		}
243 		break;
244 	case SRB_LOGOUT_CMD:
245 	case SRB_CT_PTHRU_CMD:
246 	case SRB_MB_IOCB:
247 	case SRB_NACK_PLOGI:
248 	case SRB_NACK_PRLI:
249 	case SRB_NACK_LOGO:
250 	case SRB_CTRL_VP:
251 	default:
252 		rc = qla24xx_async_abort_cmd(sp, false);
253 		if (rc) {
254 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
255 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
256 			    h++) {
257 				if (sp->qpair->req->outstanding_cmds[h] ==
258 				    sp) {
259 					sp->qpair->req->outstanding_cmds[h] =
260 					    NULL;
261 					break;
262 				}
263 			}
264 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
265 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
266 		}
267 		break;
268 	}
269 }
270 
271 static void qla2x00_async_login_sp_done(srb_t *sp, int res)
272 {
273 	struct scsi_qla_host *vha = sp->vha;
274 	struct srb_iocb *lio = &sp->u.iocb_cmd;
275 	struct event_arg ea;
276 
277 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
278 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
279 
280 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
281 
282 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
283 		memset(&ea, 0, sizeof(ea));
284 		ea.fcport = sp->fcport;
285 		ea.data[0] = lio->u.logio.data[0];
286 		ea.data[1] = lio->u.logio.data[1];
287 		ea.iop[0] = lio->u.logio.iop[0];
288 		ea.iop[1] = lio->u.logio.iop[1];
289 		ea.sp = sp;
290 		qla24xx_handle_plogi_done_event(vha, &ea);
291 	}
292 
293 	sp->free(sp);
294 }
295 
296 static inline bool
297 fcport_is_smaller(fc_port_t *fcport)
298 {
299 	if (wwn_to_u64(fcport->port_name) <
300 	    wwn_to_u64(fcport->vha->port_name))
301 		return true;
302 	else
303 		return false;
304 }
305 
306 static inline bool
307 fcport_is_bigger(fc_port_t *fcport)
308 {
309 	return !fcport_is_smaller(fcport);
310 }
311 
312 int
313 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
314     uint16_t *data)
315 {
316 	srb_t *sp;
317 	struct srb_iocb *lio;
318 	int rval = QLA_FUNCTION_FAILED;
319 
320 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
321 	    fcport->loop_id == FC_NO_LOOP_ID) {
322 		ql_log(ql_log_warn, vha, 0xffff,
323 		    "%s: %8phC - not sending command.\n",
324 		    __func__, fcport->port_name);
325 		return rval;
326 	}
327 
328 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
329 	if (!sp)
330 		goto done;
331 
332 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
333 	fcport->flags |= FCF_ASYNC_SENT;
334 	fcport->logout_completed = 0;
335 
336 	sp->type = SRB_LOGIN_CMD;
337 	sp->name = "login";
338 	sp->gen1 = fcport->rscn_gen;
339 	sp->gen2 = fcport->login_gen;
340 
341 	lio = &sp->u.iocb_cmd;
342 	lio->timeout = qla2x00_async_iocb_timeout;
343 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
344 
345 	sp->done = qla2x00_async_login_sp_done;
346 	if (N2N_TOPO(fcport->vha->hw) && fcport_is_bigger(fcport))
347 		lio->u.logio.flags |= SRB_LOGIN_PRLI_ONLY;
348 	else
349 		lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
350 
351 	if (NVME_TARGET(vha->hw, fcport))
352 		lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
353 
354 	ql_log(ql_log_warn, vha, 0x2072,
355 	       "Async-login - %8phC hdl=%x, loopid=%x portid=%02x%02x%02x retries=%d.\n",
356 	       fcport->port_name, sp->handle, fcport->loop_id,
357 	       fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
358 	       fcport->login_retry);
359 
360 	rval = qla2x00_start_sp(sp);
361 	if (rval != QLA_SUCCESS) {
362 		fcport->flags |= FCF_LOGIN_NEEDED;
363 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
364 		goto done_free_sp;
365 	}
366 
367 	return rval;
368 
369 done_free_sp:
370 	sp->free(sp);
371 	fcport->flags &= ~FCF_ASYNC_SENT;
372 done:
373 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
374 	return rval;
375 }
376 
377 static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
378 {
379 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
380 	sp->fcport->login_gen++;
381 	qlt_logo_completion_handler(sp->fcport, res);
382 	sp->free(sp);
383 }
384 
385 int
386 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
387 {
388 	srb_t *sp;
389 	struct srb_iocb *lio;
390 	int rval = QLA_FUNCTION_FAILED;
391 
392 	fcport->flags |= FCF_ASYNC_SENT;
393 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
394 	if (!sp)
395 		goto done;
396 
397 	sp->type = SRB_LOGOUT_CMD;
398 	sp->name = "logout";
399 
400 	lio = &sp->u.iocb_cmd;
401 	lio->timeout = qla2x00_async_iocb_timeout;
402 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
403 
404 	sp->done = qla2x00_async_logout_sp_done;
405 
406 	ql_dbg(ql_dbg_disc, vha, 0x2070,
407 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC.\n",
408 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
409 		fcport->d_id.b.area, fcport->d_id.b.al_pa,
410 		fcport->port_name);
411 
412 	rval = qla2x00_start_sp(sp);
413 	if (rval != QLA_SUCCESS)
414 		goto done_free_sp;
415 	return rval;
416 
417 done_free_sp:
418 	sp->free(sp);
419 done:
420 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
421 	return rval;
422 }
423 
424 void
425 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
426     uint16_t *data)
427 {
428 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
429 	/* Don't re-login in target mode */
430 	if (!fcport->tgt_session)
431 		qla2x00_mark_device_lost(vha, fcport, 1);
432 	qlt_logo_completion_handler(fcport, data[0]);
433 }
434 
435 static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
436 {
437 	struct srb_iocb *lio = &sp->u.iocb_cmd;
438 	struct scsi_qla_host *vha = sp->vha;
439 
440 	sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
441 	if (!test_bit(UNLOADING, &vha->dpc_flags))
442 		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
443 		    lio->u.logio.data);
444 	sp->free(sp);
445 }
446 
447 int
448 qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
449 {
450 	srb_t *sp;
451 	struct srb_iocb *lio;
452 	int rval;
453 
454 	rval = QLA_FUNCTION_FAILED;
455 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
456 	if (!sp)
457 		goto done;
458 
459 	sp->type = SRB_PRLO_CMD;
460 	sp->name = "prlo";
461 
462 	lio = &sp->u.iocb_cmd;
463 	lio->timeout = qla2x00_async_iocb_timeout;
464 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
465 
466 	sp->done = qla2x00_async_prlo_sp_done;
467 
468 	ql_dbg(ql_dbg_disc, vha, 0x2070,
469 	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
470 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
471 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
472 
473 	rval = qla2x00_start_sp(sp);
474 	if (rval != QLA_SUCCESS)
475 		goto done_free_sp;
476 
477 	return rval;
478 
479 done_free_sp:
480 	sp->free(sp);
481 done:
482 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
483 	return rval;
484 }
485 
486 static
487 void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
488 {
489 	struct fc_port *fcport = ea->fcport;
490 
491 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
492 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
493 	    __func__, fcport->port_name, fcport->disc_state,
494 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
495 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
496 
497 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
498 		  ea->data[0]);
499 
500 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
501 		ql_dbg(ql_dbg_disc, vha, 0x2066,
502 		    "%s %8phC: adisc fail: post delete\n",
503 		    __func__, ea->fcport->port_name);
504 		/* deleted = 0 & logout_on_delete = force fw cleanup */
505 		fcport->deleted = 0;
506 		fcport->logout_on_delete = 1;
507 		qlt_schedule_sess_for_deletion(ea->fcport);
508 		return;
509 	}
510 
511 	if (ea->fcport->disc_state == DSC_DELETE_PEND)
512 		return;
513 
514 	if (ea->sp->gen2 != ea->fcport->login_gen) {
515 		/* target side must have changed it. */
516 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
517 		    "%s %8phC generation changed\n",
518 		    __func__, ea->fcport->port_name);
519 		return;
520 	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
521 		qla_rscn_replay(fcport);
522 		qlt_schedule_sess_for_deletion(fcport);
523 		return;
524 	}
525 
526 	__qla24xx_handle_gpdb_event(vha, ea);
527 }
528 
529 static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
530 {
531 	struct qla_work_evt *e;
532 
533 	e = qla2x00_alloc_work(vha, QLA_EVT_ELS_PLOGI);
534 	if (!e)
535 		return QLA_FUNCTION_FAILED;
536 
537 	e->u.fcport.fcport = fcport;
538 	fcport->flags |= FCF_ASYNC_ACTIVE;
539 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
540 	return qla2x00_post_work(vha, e);
541 }
542 
543 static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
544 {
545 	struct scsi_qla_host *vha = sp->vha;
546 	struct event_arg ea;
547 	struct srb_iocb *lio = &sp->u.iocb_cmd;
548 
549 	ql_dbg(ql_dbg_disc, vha, 0x2066,
550 	    "Async done-%s res %x %8phC\n",
551 	    sp->name, res, sp->fcport->port_name);
552 
553 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
554 
555 	memset(&ea, 0, sizeof(ea));
556 	ea.rc = res;
557 	ea.data[0] = lio->u.logio.data[0];
558 	ea.data[1] = lio->u.logio.data[1];
559 	ea.iop[0] = lio->u.logio.iop[0];
560 	ea.iop[1] = lio->u.logio.iop[1];
561 	ea.fcport = sp->fcport;
562 	ea.sp = sp;
563 
564 	qla24xx_handle_adisc_event(vha, &ea);
565 
566 	sp->free(sp);
567 }
568 
569 int
570 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
571     uint16_t *data)
572 {
573 	srb_t *sp;
574 	struct srb_iocb *lio;
575 	int rval = QLA_FUNCTION_FAILED;
576 
577 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
578 		return rval;
579 
580 	fcport->flags |= FCF_ASYNC_SENT;
581 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
582 	if (!sp)
583 		goto done;
584 
585 	sp->type = SRB_ADISC_CMD;
586 	sp->name = "adisc";
587 
588 	lio = &sp->u.iocb_cmd;
589 	lio->timeout = qla2x00_async_iocb_timeout;
590 	sp->gen1 = fcport->rscn_gen;
591 	sp->gen2 = fcport->login_gen;
592 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
593 
594 	sp->done = qla2x00_async_adisc_sp_done;
595 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
596 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
597 
598 	ql_dbg(ql_dbg_disc, vha, 0x206f,
599 	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
600 	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
601 
602 	rval = qla2x00_start_sp(sp);
603 	if (rval != QLA_SUCCESS)
604 		goto done_free_sp;
605 
606 	return rval;
607 
608 done_free_sp:
609 	sp->free(sp);
610 done:
611 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
612 	qla2x00_post_async_adisc_work(vha, fcport, data);
613 	return rval;
614 }
615 
616 static bool qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
617 {
618 	struct qla_hw_data *ha = vha->hw;
619 
620 	if (IS_FWI2_CAPABLE(ha))
621 		return loop_id > NPH_LAST_HANDLE;
622 
623 	return (loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
624 		loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST;
625 }
626 
627 /**
628  * qla2x00_find_new_loop_id - scan through our port list and find a new usable loop ID
629  * @vha: adapter state pointer.
630  * @dev: port structure pointer.
631  *
632  * Returns:
633  *	qla2x00 local function return status code.
634  *
635  * Context:
636  *	Kernel context.
637  */
638 static int qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
639 {
640 	int	rval;
641 	struct qla_hw_data *ha = vha->hw;
642 	unsigned long flags = 0;
643 
644 	rval = QLA_SUCCESS;
645 
646 	spin_lock_irqsave(&ha->vport_slock, flags);
647 
648 	dev->loop_id = find_first_zero_bit(ha->loop_id_map, LOOPID_MAP_SIZE);
649 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
650 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
651 		dev->loop_id = FC_NO_LOOP_ID;
652 		rval = QLA_FUNCTION_FAILED;
653 	} else {
654 		set_bit(dev->loop_id, ha->loop_id_map);
655 	}
656 	spin_unlock_irqrestore(&ha->vport_slock, flags);
657 
658 	if (rval == QLA_SUCCESS)
659 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
660 		       "Assigning new loopid=%x, portid=%x.\n",
661 		       dev->loop_id, dev->d_id.b24);
662 	else
663 		ql_log(ql_log_warn, dev->vha, 0x2087,
664 		       "No loop_id's available, portid=%x.\n",
665 		       dev->d_id.b24);
666 
667 	return rval;
668 }
669 
670 void qla2x00_clear_loop_id(fc_port_t *fcport)
671 {
672 	struct qla_hw_data *ha = fcport->vha->hw;
673 
674 	if (fcport->loop_id == FC_NO_LOOP_ID ||
675 	    qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
676 		return;
677 
678 	clear_bit(fcport->loop_id, ha->loop_id_map);
679 	fcport->loop_id = FC_NO_LOOP_ID;
680 }
681 
682 static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
683 	struct event_arg *ea)
684 {
685 	fc_port_t *fcport, *conflict_fcport;
686 	struct get_name_list_extended *e;
687 	u16 i, n, found = 0, loop_id;
688 	port_id_t id;
689 	u64 wwn;
690 	u16 data[2];
691 	u8 current_login_state, nvme_cls;
692 
693 	fcport = ea->fcport;
694 	ql_dbg(ql_dbg_disc, vha, 0xffff,
695 	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d\n",
696 	    __func__, fcport->port_name, fcport->disc_state,
697 	    fcport->fw_login_state, ea->rc,
698 	    fcport->login_gen, fcport->last_login_gen,
699 	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id);
700 
701 	if (fcport->disc_state == DSC_DELETE_PEND)
702 		return;
703 
704 	if (ea->rc) { /* rval */
705 		if (fcport->login_retry == 0) {
706 			ql_dbg(ql_dbg_disc, vha, 0x20de,
707 			    "GNL failed Port login retry %8phN, retry cnt=%d.\n",
708 			    fcport->port_name, fcport->login_retry);
709 		}
710 		return;
711 	}
712 
713 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
714 		qla_rscn_replay(fcport);
715 		qlt_schedule_sess_for_deletion(fcport);
716 		return;
717 	} else if (fcport->last_login_gen != fcport->login_gen) {
718 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
719 		    "%s %8phC login gen changed\n",
720 		    __func__, fcport->port_name);
721 		return;
722 	}
723 
724 	n = ea->data[0] / sizeof(struct get_name_list_extended);
725 
726 	ql_dbg(ql_dbg_disc, vha, 0x20e1,
727 	    "%s %d %8phC n %d %02x%02x%02x lid %d \n",
728 	    __func__, __LINE__, fcport->port_name, n,
729 	    fcport->d_id.b.domain, fcport->d_id.b.area,
730 	    fcport->d_id.b.al_pa, fcport->loop_id);
731 
732 	for (i = 0; i < n; i++) {
733 		e = &vha->gnl.l[i];
734 		wwn = wwn_to_u64(e->port_name);
735 		id.b.domain = e->port_id[2];
736 		id.b.area = e->port_id[1];
737 		id.b.al_pa = e->port_id[0];
738 		id.b.rsvd_1 = 0;
739 
740 		if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
741 			continue;
742 
743 		if (IS_SW_RESV_ADDR(id))
744 			continue;
745 
746 		found = 1;
747 
748 		loop_id = le16_to_cpu(e->nport_handle);
749 		loop_id = (loop_id & 0x7fff);
750 		nvme_cls = e->current_login_state >> 4;
751 		current_login_state = e->current_login_state & 0xf;
752 
753 		if (PRLI_PHASE(nvme_cls)) {
754 			current_login_state = nvme_cls;
755 			fcport->fc4_type &= ~FS_FC4TYPE_FCP;
756 			fcport->fc4_type |= FS_FC4TYPE_NVME;
757 		} else if (PRLI_PHASE(current_login_state)) {
758 			fcport->fc4_type |= FS_FC4TYPE_FCP;
759 			fcport->fc4_type &= ~FS_FC4TYPE_NVME;
760 		}
761 
762 		ql_dbg(ql_dbg_disc, vha, 0x20e2,
763 		    "%s found %8phC CLS [%x|%x] fc4_type %d ID[%06x|%06x] lid[%d|%d]\n",
764 		    __func__, fcport->port_name,
765 		    e->current_login_state, fcport->fw_login_state,
766 		    fcport->fc4_type, id.b24, fcport->d_id.b24,
767 		    loop_id, fcport->loop_id);
768 
769 		switch (fcport->disc_state) {
770 		case DSC_DELETE_PEND:
771 		case DSC_DELETED:
772 			break;
773 		default:
774 			if ((id.b24 != fcport->d_id.b24 &&
775 			    fcport->d_id.b24 &&
776 			    fcport->loop_id != FC_NO_LOOP_ID) ||
777 			    (fcport->loop_id != FC_NO_LOOP_ID &&
778 				fcport->loop_id != loop_id)) {
779 				ql_dbg(ql_dbg_disc, vha, 0x20e3,
780 				    "%s %d %8phC post del sess\n",
781 				    __func__, __LINE__, fcport->port_name);
782 				if (fcport->n2n_flag)
783 					fcport->d_id.b24 = 0;
784 				qlt_schedule_sess_for_deletion(fcport);
785 				return;
786 			}
787 			break;
788 		}
789 
790 		fcport->loop_id = loop_id;
791 		if (fcport->n2n_flag)
792 			fcport->d_id.b24 = id.b24;
793 
794 		wwn = wwn_to_u64(fcport->port_name);
795 		qlt_find_sess_invalidate_other(vha, wwn,
796 			id, loop_id, &conflict_fcport);
797 
798 		if (conflict_fcport) {
799 			/*
800 			 * Another share fcport share the same loop_id &
801 			 * nport id. Conflict fcport needs to finish
802 			 * cleanup before this fcport can proceed to login.
803 			 */
804 			conflict_fcport->conflict = fcport;
805 			fcport->login_pause = 1;
806 		}
807 
808 		switch (vha->hw->current_topology) {
809 		default:
810 			switch (current_login_state) {
811 			case DSC_LS_PRLI_COMP:
812 				ql_dbg(ql_dbg_disc + ql_dbg_verbose,
813 				    vha, 0x20e4, "%s %d %8phC post gpdb\n",
814 				    __func__, __LINE__, fcport->port_name);
815 
816 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
817 					fcport->port_type = FCT_INITIATOR;
818 				else
819 					fcport->port_type = FCT_TARGET;
820 				data[0] = data[1] = 0;
821 				qla2x00_post_async_adisc_work(vha, fcport,
822 				    data);
823 				break;
824 			case DSC_LS_PORT_UNAVAIL:
825 			default:
826 				if (fcport->loop_id == FC_NO_LOOP_ID) {
827 					qla2x00_find_new_loop_id(vha, fcport);
828 					fcport->fw_login_state =
829 					    DSC_LS_PORT_UNAVAIL;
830 				}
831 				ql_dbg(ql_dbg_disc, vha, 0x20e5,
832 				    "%s %d %8phC\n", __func__, __LINE__,
833 				    fcport->port_name);
834 				qla24xx_fcport_handle_login(vha, fcport);
835 				break;
836 			}
837 			break;
838 		case ISP_CFG_N:
839 			fcport->fw_login_state = current_login_state;
840 			fcport->d_id = id;
841 			switch (current_login_state) {
842 			case DSC_LS_PRLI_PEND:
843 				/*
844 				 * In the middle of PRLI. Let it finish.
845 				 * Allow relogin code to recheck state again
846 				 * with GNL. Push disc_state back to DELETED
847 				 * so GNL can go out again
848 				 */
849 				qla2x00_set_fcport_disc_state(fcport,
850 				    DSC_DELETED);
851 				break;
852 			case DSC_LS_PRLI_COMP:
853 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
854 					fcport->port_type = FCT_INITIATOR;
855 				else
856 					fcport->port_type = FCT_TARGET;
857 
858 				data[0] = data[1] = 0;
859 				qla2x00_post_async_adisc_work(vha, fcport,
860 				    data);
861 				break;
862 			case DSC_LS_PLOGI_COMP:
863 				if (fcport_is_bigger(fcport)) {
864 					/* local adapter is smaller */
865 					if (fcport->loop_id != FC_NO_LOOP_ID)
866 						qla2x00_clear_loop_id(fcport);
867 
868 					fcport->loop_id = loop_id;
869 					qla24xx_fcport_handle_login(vha,
870 					    fcport);
871 					break;
872 				}
873 				fallthrough;
874 			default:
875 				if (fcport_is_smaller(fcport)) {
876 					/* local adapter is bigger */
877 					if (fcport->loop_id != FC_NO_LOOP_ID)
878 						qla2x00_clear_loop_id(fcport);
879 
880 					fcport->loop_id = loop_id;
881 					qla24xx_fcport_handle_login(vha,
882 					    fcport);
883 				}
884 				break;
885 			}
886 			break;
887 		} /* switch (ha->current_topology) */
888 	}
889 
890 	if (!found) {
891 		switch (vha->hw->current_topology) {
892 		case ISP_CFG_F:
893 		case ISP_CFG_FL:
894 			for (i = 0; i < n; i++) {
895 				e = &vha->gnl.l[i];
896 				id.b.domain = e->port_id[0];
897 				id.b.area = e->port_id[1];
898 				id.b.al_pa = e->port_id[2];
899 				id.b.rsvd_1 = 0;
900 				loop_id = le16_to_cpu(e->nport_handle);
901 
902 				if (fcport->d_id.b24 == id.b24) {
903 					conflict_fcport =
904 					    qla2x00_find_fcport_by_wwpn(vha,
905 						e->port_name, 0);
906 					if (conflict_fcport) {
907 						ql_dbg(ql_dbg_disc + ql_dbg_verbose,
908 						    vha, 0x20e5,
909 						    "%s %d %8phC post del sess\n",
910 						    __func__, __LINE__,
911 						    conflict_fcport->port_name);
912 						qlt_schedule_sess_for_deletion
913 							(conflict_fcport);
914 					}
915 				}
916 				/*
917 				 * FW already picked this loop id for
918 				 * another fcport
919 				 */
920 				if (fcport->loop_id == loop_id)
921 					fcport->loop_id = FC_NO_LOOP_ID;
922 			}
923 			qla24xx_fcport_handle_login(vha, fcport);
924 			break;
925 		case ISP_CFG_N:
926 			qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
927 			if (time_after_eq(jiffies, fcport->dm_login_expire)) {
928 				if (fcport->n2n_link_reset_cnt < 2) {
929 					fcport->n2n_link_reset_cnt++;
930 					/*
931 					 * remote port is not sending PLOGI.
932 					 * Reset link to kick start his state
933 					 * machine
934 					 */
935 					set_bit(N2N_LINK_RESET,
936 					    &vha->dpc_flags);
937 				} else {
938 					if (fcport->n2n_chip_reset < 1) {
939 						ql_log(ql_log_info, vha, 0x705d,
940 						    "Chip reset to bring laser down");
941 						set_bit(ISP_ABORT_NEEDED,
942 						    &vha->dpc_flags);
943 						fcport->n2n_chip_reset++;
944 					} else {
945 						ql_log(ql_log_info, vha, 0x705d,
946 						    "Remote port %8ph is not coming back\n",
947 						    fcport->port_name);
948 						fcport->scan_state = 0;
949 					}
950 				}
951 				qla2xxx_wake_dpc(vha);
952 			} else {
953 				/*
954 				 * report port suppose to do PLOGI. Give him
955 				 * more time. FW will catch it.
956 				 */
957 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
958 			}
959 			break;
960 		default:
961 			break;
962 		}
963 	}
964 } /* gnl_event */
965 
966 static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
967 {
968 	struct scsi_qla_host *vha = sp->vha;
969 	unsigned long flags;
970 	struct fc_port *fcport = NULL, *tf;
971 	u16 i, n = 0, loop_id;
972 	struct event_arg ea;
973 	struct get_name_list_extended *e;
974 	u64 wwn;
975 	struct list_head h;
976 	bool found = false;
977 
978 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
979 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
980 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
981 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
982 
983 	if (res == QLA_FUNCTION_TIMEOUT)
984 		return;
985 
986 	sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
987 	memset(&ea, 0, sizeof(ea));
988 	ea.sp = sp;
989 	ea.rc = res;
990 
991 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
992 	    sizeof(struct get_name_list_extended)) {
993 		n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
994 		    sizeof(struct get_name_list_extended);
995 		ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
996 	}
997 
998 	for (i = 0; i < n; i++) {
999 		e = &vha->gnl.l[i];
1000 		loop_id = le16_to_cpu(e->nport_handle);
1001 		/* mask out reserve bit */
1002 		loop_id = (loop_id & 0x7fff);
1003 		set_bit(loop_id, vha->hw->loop_id_map);
1004 		wwn = wwn_to_u64(e->port_name);
1005 
1006 		ql_dbg(ql_dbg_disc, vha, 0x20e8,
1007 		    "%s %8phC %02x:%02x:%02x CLS %x/%x lid %x \n",
1008 		    __func__, &wwn, e->port_id[2], e->port_id[1],
1009 		    e->port_id[0], e->current_login_state, e->last_login_state,
1010 		    (loop_id & 0x7fff));
1011 	}
1012 
1013 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1014 
1015 	INIT_LIST_HEAD(&h);
1016 	fcport = tf = NULL;
1017 	if (!list_empty(&vha->gnl.fcports))
1018 		list_splice_init(&vha->gnl.fcports, &h);
1019 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1020 
1021 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
1022 		list_del_init(&fcport->gnl_entry);
1023 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1024 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1025 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1026 		ea.fcport = fcport;
1027 
1028 		qla24xx_handle_gnl_done_event(vha, &ea);
1029 	}
1030 
1031 	/* create new fcport if fw has knowledge of new sessions */
1032 	for (i = 0; i < n; i++) {
1033 		port_id_t id;
1034 		u64 wwnn;
1035 
1036 		e = &vha->gnl.l[i];
1037 		wwn = wwn_to_u64(e->port_name);
1038 
1039 		found = false;
1040 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
1041 			if (!memcmp((u8 *)&wwn, fcport->port_name,
1042 			    WWN_SIZE)) {
1043 				found = true;
1044 				break;
1045 			}
1046 		}
1047 
1048 		id.b.domain = e->port_id[2];
1049 		id.b.area = e->port_id[1];
1050 		id.b.al_pa = e->port_id[0];
1051 		id.b.rsvd_1 = 0;
1052 
1053 		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
1054 			ql_dbg(ql_dbg_disc, vha, 0x2065,
1055 			    "%s %d %8phC %06x post new sess\n",
1056 			    __func__, __LINE__, (u8 *)&wwn, id.b24);
1057 			wwnn = wwn_to_u64(e->node_name);
1058 			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
1059 			    (u8 *)&wwnn, NULL, 0);
1060 		}
1061 	}
1062 
1063 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1064 	vha->gnl.sent = 0;
1065 	if (!list_empty(&vha->gnl.fcports)) {
1066 		/* retrigger gnl */
1067 		list_for_each_entry_safe(fcport, tf, &vha->gnl.fcports,
1068 		    gnl_entry) {
1069 			list_del_init(&fcport->gnl_entry);
1070 			fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1071 			if (qla24xx_post_gnl_work(vha, fcport) == QLA_SUCCESS)
1072 				break;
1073 		}
1074 	}
1075 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1076 
1077 	sp->free(sp);
1078 }
1079 
1080 int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
1081 {
1082 	srb_t *sp;
1083 	struct srb_iocb *mbx;
1084 	int rval = QLA_FUNCTION_FAILED;
1085 	unsigned long flags;
1086 	u16 *mb;
1087 
1088 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
1089 		return rval;
1090 
1091 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
1092 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
1093 
1094 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1095 	fcport->flags |= FCF_ASYNC_SENT;
1096 	qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1097 	fcport->last_rscn_gen = fcport->rscn_gen;
1098 	fcport->last_login_gen = fcport->login_gen;
1099 
1100 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
1101 	if (vha->gnl.sent) {
1102 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1103 		return QLA_SUCCESS;
1104 	}
1105 	vha->gnl.sent = 1;
1106 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1107 
1108 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1109 	if (!sp)
1110 		goto done;
1111 
1112 	sp->type = SRB_MB_IOCB;
1113 	sp->name = "gnlist";
1114 	sp->gen1 = fcport->rscn_gen;
1115 	sp->gen2 = fcport->login_gen;
1116 
1117 	mbx = &sp->u.iocb_cmd;
1118 	mbx->timeout = qla2x00_async_iocb_timeout;
1119 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
1120 
1121 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1122 	mb[0] = MBC_PORT_NODE_NAME_LIST;
1123 	mb[1] = BIT_2 | BIT_3;
1124 	mb[2] = MSW(vha->gnl.ldma);
1125 	mb[3] = LSW(vha->gnl.ldma);
1126 	mb[6] = MSW(MSD(vha->gnl.ldma));
1127 	mb[7] = LSW(MSD(vha->gnl.ldma));
1128 	mb[8] = vha->gnl.size;
1129 	mb[9] = vha->vp_idx;
1130 
1131 	sp->done = qla24xx_async_gnl_sp_done;
1132 
1133 	ql_dbg(ql_dbg_disc, vha, 0x20da,
1134 	    "Async-%s - OUT WWPN %8phC hndl %x\n",
1135 	    sp->name, fcport->port_name, sp->handle);
1136 
1137 	rval = qla2x00_start_sp(sp);
1138 	if (rval != QLA_SUCCESS)
1139 		goto done_free_sp;
1140 
1141 	return rval;
1142 
1143 done_free_sp:
1144 	sp->free(sp);
1145 done:
1146 	fcport->flags &= ~(FCF_ASYNC_ACTIVE | FCF_ASYNC_SENT);
1147 	return rval;
1148 }
1149 
1150 int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1151 {
1152 	struct qla_work_evt *e;
1153 
1154 	e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
1155 	if (!e)
1156 		return QLA_FUNCTION_FAILED;
1157 
1158 	e->u.fcport.fcport = fcport;
1159 	fcport->flags |= FCF_ASYNC_ACTIVE;
1160 	return qla2x00_post_work(vha, e);
1161 }
1162 
1163 static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
1164 {
1165 	struct scsi_qla_host *vha = sp->vha;
1166 	struct qla_hw_data *ha = vha->hw;
1167 	fc_port_t *fcport = sp->fcport;
1168 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
1169 	struct event_arg ea;
1170 
1171 	ql_dbg(ql_dbg_disc, vha, 0x20db,
1172 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
1173 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
1174 
1175 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1176 
1177 	if (res == QLA_FUNCTION_TIMEOUT)
1178 		goto done;
1179 
1180 	memset(&ea, 0, sizeof(ea));
1181 	ea.fcport = fcport;
1182 	ea.sp = sp;
1183 
1184 	qla24xx_handle_gpdb_event(vha, &ea);
1185 
1186 done:
1187 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
1188 		sp->u.iocb_cmd.u.mbx.in_dma);
1189 
1190 	sp->free(sp);
1191 }
1192 
1193 static int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1194 {
1195 	struct qla_work_evt *e;
1196 
1197 	e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
1198 	if (!e)
1199 		return QLA_FUNCTION_FAILED;
1200 
1201 	e->u.fcport.fcport = fcport;
1202 
1203 	return qla2x00_post_work(vha, e);
1204 }
1205 
1206 static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
1207 {
1208 	struct scsi_qla_host *vha = sp->vha;
1209 	struct srb_iocb *lio = &sp->u.iocb_cmd;
1210 	struct event_arg ea;
1211 
1212 	ql_dbg(ql_dbg_disc, vha, 0x2129,
1213 	    "%s %8phC res %d \n", __func__,
1214 	    sp->fcport->port_name, res);
1215 
1216 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
1217 
1218 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
1219 		memset(&ea, 0, sizeof(ea));
1220 		ea.fcport = sp->fcport;
1221 		ea.data[0] = lio->u.logio.data[0];
1222 		ea.data[1] = lio->u.logio.data[1];
1223 		ea.iop[0] = lio->u.logio.iop[0];
1224 		ea.iop[1] = lio->u.logio.iop[1];
1225 		ea.sp = sp;
1226 
1227 		qla24xx_handle_prli_done_event(vha, &ea);
1228 	}
1229 
1230 	sp->free(sp);
1231 }
1232 
1233 int
1234 qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
1235 {
1236 	srb_t *sp;
1237 	struct srb_iocb *lio;
1238 	int rval = QLA_FUNCTION_FAILED;
1239 
1240 	if (!vha->flags.online) {
1241 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1242 		    __func__, __LINE__, fcport->port_name);
1243 		return rval;
1244 	}
1245 
1246 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
1247 	    fcport->fw_login_state == DSC_LS_PRLI_PEND) &&
1248 	    qla_dual_mode_enabled(vha)) {
1249 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1250 		    __func__, __LINE__, fcport->port_name);
1251 		return rval;
1252 	}
1253 
1254 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1255 	if (!sp)
1256 		return rval;
1257 
1258 	fcport->flags |= FCF_ASYNC_SENT;
1259 	fcport->logout_completed = 0;
1260 
1261 	sp->type = SRB_PRLI_CMD;
1262 	sp->name = "prli";
1263 
1264 	lio = &sp->u.iocb_cmd;
1265 	lio->timeout = qla2x00_async_iocb_timeout;
1266 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1267 
1268 	sp->done = qla2x00_async_prli_sp_done;
1269 	lio->u.logio.flags = 0;
1270 
1271 	if (NVME_TARGET(vha->hw, fcport))
1272 		lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
1273 
1274 	ql_dbg(ql_dbg_disc, vha, 0x211b,
1275 	    "Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d fc4type %x priority %x %s.\n",
1276 	    fcport->port_name, sp->handle, fcport->loop_id, fcport->d_id.b24,
1277 	    fcport->login_retry, fcport->fc4_type, vha->hw->fc4_type_priority,
1278 	    NVME_TARGET(vha->hw, fcport) ? "nvme" : "fcp");
1279 
1280 	rval = qla2x00_start_sp(sp);
1281 	if (rval != QLA_SUCCESS) {
1282 		fcport->flags |= FCF_LOGIN_NEEDED;
1283 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1284 		goto done_free_sp;
1285 	}
1286 
1287 	return rval;
1288 
1289 done_free_sp:
1290 	sp->free(sp);
1291 	fcport->flags &= ~FCF_ASYNC_SENT;
1292 	return rval;
1293 }
1294 
1295 int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1296 {
1297 	struct qla_work_evt *e;
1298 
1299 	e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
1300 	if (!e)
1301 		return QLA_FUNCTION_FAILED;
1302 
1303 	e->u.fcport.fcport = fcport;
1304 	e->u.fcport.opt = opt;
1305 	fcport->flags |= FCF_ASYNC_ACTIVE;
1306 	return qla2x00_post_work(vha, e);
1307 }
1308 
1309 int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1310 {
1311 	srb_t *sp;
1312 	struct srb_iocb *mbx;
1313 	int rval = QLA_FUNCTION_FAILED;
1314 	u16 *mb;
1315 	dma_addr_t pd_dma;
1316 	struct port_database_24xx *pd;
1317 	struct qla_hw_data *ha = vha->hw;
1318 
1319 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
1320 	    fcport->loop_id == FC_NO_LOOP_ID) {
1321 		ql_log(ql_log_warn, vha, 0xffff,
1322 		    "%s: %8phC - not sending command.\n",
1323 		    __func__, fcport->port_name);
1324 		return rval;
1325 	}
1326 
1327 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1328 	if (!sp)
1329 		goto done;
1330 
1331 	qla2x00_set_fcport_disc_state(fcport, DSC_GPDB);
1332 
1333 	fcport->flags |= FCF_ASYNC_SENT;
1334 	sp->type = SRB_MB_IOCB;
1335 	sp->name = "gpdb";
1336 	sp->gen1 = fcport->rscn_gen;
1337 	sp->gen2 = fcport->login_gen;
1338 
1339 	mbx = &sp->u.iocb_cmd;
1340 	mbx->timeout = qla2x00_async_iocb_timeout;
1341 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1342 
1343 	pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
1344 	if (pd == NULL) {
1345 		ql_log(ql_log_warn, vha, 0xd043,
1346 		    "Failed to allocate port database structure.\n");
1347 		goto done_free_sp;
1348 	}
1349 
1350 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1351 	mb[0] = MBC_GET_PORT_DATABASE;
1352 	mb[1] = fcport->loop_id;
1353 	mb[2] = MSW(pd_dma);
1354 	mb[3] = LSW(pd_dma);
1355 	mb[6] = MSW(MSD(pd_dma));
1356 	mb[7] = LSW(MSD(pd_dma));
1357 	mb[9] = vha->vp_idx;
1358 	mb[10] = opt;
1359 
1360 	mbx->u.mbx.in = pd;
1361 	mbx->u.mbx.in_dma = pd_dma;
1362 
1363 	sp->done = qla24xx_async_gpdb_sp_done;
1364 
1365 	ql_dbg(ql_dbg_disc, vha, 0x20dc,
1366 	    "Async-%s %8phC hndl %x opt %x\n",
1367 	    sp->name, fcport->port_name, sp->handle, opt);
1368 
1369 	rval = qla2x00_start_sp(sp);
1370 	if (rval != QLA_SUCCESS)
1371 		goto done_free_sp;
1372 	return rval;
1373 
1374 done_free_sp:
1375 	if (pd)
1376 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
1377 
1378 	sp->free(sp);
1379 	fcport->flags &= ~FCF_ASYNC_SENT;
1380 done:
1381 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
1382 	qla24xx_post_gpdb_work(vha, fcport, opt);
1383 	return rval;
1384 }
1385 
1386 static
1387 void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1388 {
1389 	unsigned long flags;
1390 
1391 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1392 	ea->fcport->login_gen++;
1393 	ea->fcport->deleted = 0;
1394 	ea->fcport->logout_on_delete = 1;
1395 
1396 	if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
1397 		vha->fcport_count++;
1398 		ea->fcport->login_succ = 1;
1399 
1400 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1401 		qla24xx_sched_upd_fcport(ea->fcport);
1402 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1403 	} else if (ea->fcport->login_succ) {
1404 		/*
1405 		 * We have an existing session. A late RSCN delivery
1406 		 * must have triggered the session to be re-validate.
1407 		 * Session is still valid.
1408 		 */
1409 		ql_dbg(ql_dbg_disc, vha, 0x20d6,
1410 		    "%s %d %8phC session revalidate success\n",
1411 		    __func__, __LINE__, ea->fcport->port_name);
1412 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_COMPLETE);
1413 	}
1414 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1415 }
1416 
1417 static
1418 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1419 {
1420 	fc_port_t *fcport = ea->fcport;
1421 	struct port_database_24xx *pd;
1422 	struct srb *sp = ea->sp;
1423 	uint8_t	ls;
1424 
1425 	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
1426 
1427 	fcport->flags &= ~FCF_ASYNC_SENT;
1428 
1429 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
1430 	    "%s %8phC DS %d LS %d fc4_type %x rc %d\n", __func__,
1431 	    fcport->port_name, fcport->disc_state, pd->current_login_state,
1432 	    fcport->fc4_type, ea->rc);
1433 
1434 	if (fcport->disc_state == DSC_DELETE_PEND)
1435 		return;
1436 
1437 	if (NVME_TARGET(vha->hw, fcport))
1438 		ls = pd->current_login_state >> 4;
1439 	else
1440 		ls = pd->current_login_state & 0xf;
1441 
1442 	if (ea->sp->gen2 != fcport->login_gen) {
1443 		/* target side must have changed it. */
1444 
1445 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1446 		    "%s %8phC generation changed\n",
1447 		    __func__, fcport->port_name);
1448 		return;
1449 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1450 		qla_rscn_replay(fcport);
1451 		qlt_schedule_sess_for_deletion(fcport);
1452 		return;
1453 	}
1454 
1455 	switch (ls) {
1456 	case PDS_PRLI_COMPLETE:
1457 		__qla24xx_parse_gpdb(vha, fcport, pd);
1458 		break;
1459 	case PDS_PLOGI_PENDING:
1460 	case PDS_PLOGI_COMPLETE:
1461 	case PDS_PRLI_PENDING:
1462 	case PDS_PRLI2_PENDING:
1463 		/* Set discovery state back to GNL to Relogin attempt */
1464 		if (qla_dual_mode_enabled(vha) ||
1465 		    qla_ini_mode_enabled(vha)) {
1466 			qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1467 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1468 		}
1469 		return;
1470 	case PDS_LOGO_PENDING:
1471 	case PDS_PORT_UNAVAILABLE:
1472 	default:
1473 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
1474 		    __func__, __LINE__, fcport->port_name);
1475 		qlt_schedule_sess_for_deletion(fcport);
1476 		return;
1477 	}
1478 	__qla24xx_handle_gpdb_event(vha, ea);
1479 } /* gpdb event */
1480 
1481 static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1482 {
1483 	u8 login = 0;
1484 	int rc;
1485 
1486 	if (qla_tgt_mode_enabled(vha))
1487 		return;
1488 
1489 	if (qla_dual_mode_enabled(vha)) {
1490 		if (N2N_TOPO(vha->hw)) {
1491 			u64 mywwn, wwn;
1492 
1493 			mywwn = wwn_to_u64(vha->port_name);
1494 			wwn = wwn_to_u64(fcport->port_name);
1495 			if (mywwn > wwn)
1496 				login = 1;
1497 			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1498 			    && time_after_eq(jiffies,
1499 				    fcport->plogi_nack_done_deadline))
1500 				login = 1;
1501 		} else {
1502 			login = 1;
1503 		}
1504 	} else {
1505 		/* initiator mode */
1506 		login = 1;
1507 	}
1508 
1509 	if (login && fcport->login_retry) {
1510 		fcport->login_retry--;
1511 		if (fcport->loop_id == FC_NO_LOOP_ID) {
1512 			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
1513 			rc = qla2x00_find_new_loop_id(vha, fcport);
1514 			if (rc) {
1515 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
1516 				    "%s %d %8phC post del sess - out of loopid\n",
1517 				    __func__, __LINE__, fcport->port_name);
1518 				fcport->scan_state = 0;
1519 				qlt_schedule_sess_for_deletion(fcport);
1520 				return;
1521 			}
1522 		}
1523 		ql_dbg(ql_dbg_disc, vha, 0x20bf,
1524 		    "%s %d %8phC post login\n",
1525 		    __func__, __LINE__, fcport->port_name);
1526 		qla2x00_post_async_login_work(vha, fcport, NULL);
1527 	}
1528 }
1529 
1530 int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1531 {
1532 	u16 data[2];
1533 	u64 wwn;
1534 	u16 sec;
1535 
1536 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
1537 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d\n",
1538 	    __func__, fcport->port_name, fcport->disc_state,
1539 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
1540 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
1541 	    fcport->login_gen, fcport->loop_id, fcport->scan_state);
1542 
1543 	if (fcport->scan_state != QLA_FCPORT_FOUND)
1544 		return 0;
1545 
1546 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
1547 	    qla_dual_mode_enabled(vha) &&
1548 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1549 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
1550 		return 0;
1551 
1552 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP &&
1553 	    !N2N_TOPO(vha->hw)) {
1554 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1555 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1556 			return 0;
1557 		}
1558 	}
1559 
1560 	/* Target won't initiate port login if fabric is present */
1561 	if (vha->host->active_mode == MODE_TARGET && !N2N_TOPO(vha->hw))
1562 		return 0;
1563 
1564 	if (fcport->flags & FCF_ASYNC_SENT) {
1565 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1566 		return 0;
1567 	}
1568 
1569 	switch (fcport->disc_state) {
1570 	case DSC_DELETED:
1571 		wwn = wwn_to_u64(fcport->node_name);
1572 		switch (vha->hw->current_topology) {
1573 		case ISP_CFG_N:
1574 			if (fcport_is_smaller(fcport)) {
1575 				/* this adapter is bigger */
1576 				if (fcport->login_retry) {
1577 					if (fcport->loop_id == FC_NO_LOOP_ID) {
1578 						qla2x00_find_new_loop_id(vha,
1579 						    fcport);
1580 						fcport->fw_login_state =
1581 						    DSC_LS_PORT_UNAVAIL;
1582 					}
1583 					fcport->login_retry--;
1584 					qla_post_els_plogi_work(vha, fcport);
1585 				} else {
1586 					ql_log(ql_log_info, vha, 0x705d,
1587 					    "Unable to reach remote port %8phC",
1588 					    fcport->port_name);
1589 				}
1590 			} else {
1591 				qla24xx_post_gnl_work(vha, fcport);
1592 			}
1593 			break;
1594 		default:
1595 			if (wwn == 0)    {
1596 				ql_dbg(ql_dbg_disc, vha, 0xffff,
1597 				    "%s %d %8phC post GNNID\n",
1598 				    __func__, __LINE__, fcport->port_name);
1599 				qla24xx_post_gnnid_work(vha, fcport);
1600 			} else if (fcport->loop_id == FC_NO_LOOP_ID) {
1601 				ql_dbg(ql_dbg_disc, vha, 0x20bd,
1602 				    "%s %d %8phC post gnl\n",
1603 				    __func__, __LINE__, fcport->port_name);
1604 				qla24xx_post_gnl_work(vha, fcport);
1605 			} else {
1606 				qla_chk_n2n_b4_login(vha, fcport);
1607 			}
1608 			break;
1609 		}
1610 		break;
1611 
1612 	case DSC_GNL:
1613 		switch (vha->hw->current_topology) {
1614 		case ISP_CFG_N:
1615 			if ((fcport->current_login_state & 0xf) == 0x6) {
1616 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1617 				    "%s %d %8phC post GPDB work\n",
1618 				    __func__, __LINE__, fcport->port_name);
1619 				fcport->chip_reset =
1620 					vha->hw->base_qpair->chip_reset;
1621 				qla24xx_post_gpdb_work(vha, fcport, 0);
1622 			}  else {
1623 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1624 				    "%s %d %8phC post %s PRLI\n",
1625 				    __func__, __LINE__, fcport->port_name,
1626 				    NVME_TARGET(vha->hw, fcport) ? "NVME" :
1627 				    "FC");
1628 				qla24xx_post_prli_work(vha, fcport);
1629 			}
1630 			break;
1631 		default:
1632 			if (fcport->login_pause) {
1633 				ql_dbg(ql_dbg_disc, vha, 0x20d8,
1634 				    "%s %d %8phC exit\n",
1635 				    __func__, __LINE__,
1636 				    fcport->port_name);
1637 				fcport->last_rscn_gen = fcport->rscn_gen;
1638 				fcport->last_login_gen = fcport->login_gen;
1639 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1640 				break;
1641 			}
1642 			qla_chk_n2n_b4_login(vha, fcport);
1643 			break;
1644 		}
1645 		break;
1646 
1647 	case DSC_LOGIN_FAILED:
1648 		if (N2N_TOPO(vha->hw))
1649 			qla_chk_n2n_b4_login(vha, fcport);
1650 		else
1651 			qlt_schedule_sess_for_deletion(fcport);
1652 		break;
1653 
1654 	case DSC_LOGIN_COMPLETE:
1655 		/* recheck login state */
1656 		data[0] = data[1] = 0;
1657 		qla2x00_post_async_adisc_work(vha, fcport, data);
1658 		break;
1659 
1660 	case DSC_LOGIN_PEND:
1661 		if (fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1662 			qla24xx_post_prli_work(vha, fcport);
1663 		break;
1664 
1665 	case DSC_UPD_FCPORT:
1666 		sec =  jiffies_to_msecs(jiffies -
1667 		    fcport->jiffies_at_registration)/1000;
1668 		if (fcport->sec_since_registration < sec && sec &&
1669 		    !(sec % 60)) {
1670 			fcport->sec_since_registration = sec;
1671 			ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
1672 			    "%s %8phC - Slow Rport registration(%d Sec)\n",
1673 			    __func__, fcport->port_name, sec);
1674 		}
1675 
1676 		if (fcport->next_disc_state != DSC_DELETE_PEND)
1677 			fcport->next_disc_state = DSC_ADISC;
1678 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1679 		break;
1680 
1681 	default:
1682 		break;
1683 	}
1684 
1685 	return 0;
1686 }
1687 
1688 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
1689     u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
1690 {
1691 	struct qla_work_evt *e;
1692 
1693 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
1694 	if (!e)
1695 		return QLA_FUNCTION_FAILED;
1696 
1697 	e->u.new_sess.id = *id;
1698 	e->u.new_sess.pla = pla;
1699 	e->u.new_sess.fc4_type = fc4_type;
1700 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
1701 	if (node_name)
1702 		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
1703 
1704 	return qla2x00_post_work(vha, e);
1705 }
1706 
1707 void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
1708 {
1709 	fc_port_t *fcport;
1710 	unsigned long flags;
1711 
1712 	fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
1713 	if (fcport) {
1714 		fcport->scan_needed = 1;
1715 		fcport->rscn_gen++;
1716 	}
1717 
1718 	spin_lock_irqsave(&vha->work_lock, flags);
1719 	if (vha->scan.scan_flags == 0) {
1720 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
1721 		vha->scan.scan_flags |= SF_QUEUED;
1722 		schedule_delayed_work(&vha->scan.scan_work, 5);
1723 	}
1724 	spin_unlock_irqrestore(&vha->work_lock, flags);
1725 }
1726 
1727 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
1728 	struct event_arg *ea)
1729 {
1730 	fc_port_t *fcport = ea->fcport;
1731 
1732 	if (test_bit(UNLOADING, &vha->dpc_flags))
1733 		return;
1734 
1735 	ql_dbg(ql_dbg_disc, vha, 0x2102,
1736 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
1737 	    __func__, fcport->port_name, fcport->disc_state,
1738 	    fcport->fw_login_state, fcport->login_pause,
1739 	    fcport->deleted, fcport->conflict,
1740 	    fcport->last_rscn_gen, fcport->rscn_gen,
1741 	    fcport->last_login_gen, fcport->login_gen,
1742 	    fcport->flags);
1743 
1744 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
1745 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
1746 		    __func__, __LINE__, fcport->port_name);
1747 		qla24xx_post_gnl_work(vha, fcport);
1748 		return;
1749 	}
1750 
1751 	qla24xx_fcport_handle_login(vha, fcport);
1752 }
1753 
1754 void qla_handle_els_plogi_done(scsi_qla_host_t *vha,
1755 				      struct event_arg *ea)
1756 {
1757 	/* for pure Target Mode, PRLI will not be initiated */
1758 	if (vha->host->active_mode == MODE_TARGET)
1759 		return;
1760 
1761 	ql_dbg(ql_dbg_disc, vha, 0x2118,
1762 	    "%s %d %8phC post PRLI\n",
1763 	    __func__, __LINE__, ea->fcport->port_name);
1764 	qla24xx_post_prli_work(vha, ea->fcport);
1765 }
1766 
1767 /*
1768  * RSCN(s) came in for this fcport, but the RSCN(s) was not able
1769  * to be consumed by the fcport
1770  */
1771 void qla_rscn_replay(fc_port_t *fcport)
1772 {
1773 	struct event_arg ea;
1774 
1775 	switch (fcport->disc_state) {
1776 	case DSC_DELETE_PEND:
1777 		return;
1778 	default:
1779 		break;
1780 	}
1781 
1782 	if (fcport->scan_needed) {
1783 		memset(&ea, 0, sizeof(ea));
1784 		ea.id = fcport->d_id;
1785 		ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
1786 		qla2x00_handle_rscn(fcport->vha, &ea);
1787 	}
1788 }
1789 
1790 static void
1791 qla2x00_tmf_iocb_timeout(void *data)
1792 {
1793 	srb_t *sp = data;
1794 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1795 	int rc, h;
1796 	unsigned long flags;
1797 
1798 	rc = qla24xx_async_abort_cmd(sp, false);
1799 	if (rc) {
1800 		spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
1801 		for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
1802 			if (sp->qpair->req->outstanding_cmds[h] == sp) {
1803 				sp->qpair->req->outstanding_cmds[h] = NULL;
1804 				break;
1805 			}
1806 		}
1807 		spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
1808 		tmf->u.tmf.comp_status = cpu_to_le16(CS_TIMEOUT);
1809 		tmf->u.tmf.data = QLA_FUNCTION_FAILED;
1810 		complete(&tmf->u.tmf.comp);
1811 	}
1812 }
1813 
1814 static void qla2x00_tmf_sp_done(srb_t *sp, int res)
1815 {
1816 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1817 
1818 	complete(&tmf->u.tmf.comp);
1819 }
1820 
1821 int
1822 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
1823 	uint32_t tag)
1824 {
1825 	struct scsi_qla_host *vha = fcport->vha;
1826 	struct srb_iocb *tm_iocb;
1827 	srb_t *sp;
1828 	int rval = QLA_FUNCTION_FAILED;
1829 
1830 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1831 	if (!sp)
1832 		goto done;
1833 
1834 	tm_iocb = &sp->u.iocb_cmd;
1835 	sp->type = SRB_TM_CMD;
1836 	sp->name = "tmf";
1837 
1838 	tm_iocb->timeout = qla2x00_tmf_iocb_timeout;
1839 	init_completion(&tm_iocb->u.tmf.comp);
1840 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
1841 
1842 	tm_iocb->u.tmf.flags = flags;
1843 	tm_iocb->u.tmf.lun = lun;
1844 	tm_iocb->u.tmf.data = tag;
1845 	sp->done = qla2x00_tmf_sp_done;
1846 
1847 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
1848 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
1849 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
1850 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
1851 
1852 	rval = qla2x00_start_sp(sp);
1853 	if (rval != QLA_SUCCESS)
1854 		goto done_free_sp;
1855 	wait_for_completion(&tm_iocb->u.tmf.comp);
1856 
1857 	rval = tm_iocb->u.tmf.data;
1858 
1859 	if (rval != QLA_SUCCESS) {
1860 		ql_log(ql_log_warn, vha, 0x8030,
1861 		    "TM IOCB failed (%x).\n", rval);
1862 	}
1863 
1864 	if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
1865 		flags = tm_iocb->u.tmf.flags;
1866 		lun = (uint16_t)tm_iocb->u.tmf.lun;
1867 
1868 		/* Issue Marker IOCB */
1869 		qla2x00_marker(vha, vha->hw->base_qpair,
1870 		    fcport->loop_id, lun,
1871 		    flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
1872 	}
1873 
1874 done_free_sp:
1875 	sp->free(sp);
1876 	fcport->flags &= ~FCF_ASYNC_SENT;
1877 done:
1878 	return rval;
1879 }
1880 
1881 int
1882 qla24xx_async_abort_command(srb_t *sp)
1883 {
1884 	unsigned long   flags = 0;
1885 
1886 	uint32_t	handle;
1887 	fc_port_t	*fcport = sp->fcport;
1888 	struct qla_qpair *qpair = sp->qpair;
1889 	struct scsi_qla_host *vha = fcport->vha;
1890 	struct req_que *req = qpair->req;
1891 
1892 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
1893 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
1894 		if (req->outstanding_cmds[handle] == sp)
1895 			break;
1896 	}
1897 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
1898 
1899 	if (handle == req->num_outstanding_cmds) {
1900 		/* Command not found. */
1901 		return QLA_FUNCTION_FAILED;
1902 	}
1903 	if (sp->type == SRB_FXIOCB_DCMD)
1904 		return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
1905 		    FXDISC_ABORT_IOCTL);
1906 
1907 	return qla24xx_async_abort_cmd(sp, true);
1908 }
1909 
1910 static void
1911 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1912 {
1913 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
1914 		  ea->data[0]);
1915 
1916 	switch (ea->data[0]) {
1917 	case MBS_COMMAND_COMPLETE:
1918 		ql_dbg(ql_dbg_disc, vha, 0x2118,
1919 		    "%s %d %8phC post gpdb\n",
1920 		    __func__, __LINE__, ea->fcport->port_name);
1921 
1922 		ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
1923 		ea->fcport->logout_on_delete = 1;
1924 		ea->fcport->nvme_prli_service_param = ea->iop[0];
1925 		if (ea->iop[0] & NVME_PRLI_SP_FIRST_BURST)
1926 			ea->fcport->nvme_first_burst_size =
1927 			    (ea->iop[1] & 0xffff) * 512;
1928 		else
1929 			ea->fcport->nvme_first_burst_size = 0;
1930 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1931 		break;
1932 	default:
1933 		if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) &&
1934 		    (ea->iop[1] == 0x50000)) {   /* reson 5=busy expl:0x0 */
1935 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1936 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
1937 			break;
1938 		}
1939 
1940 		ql_dbg(ql_dbg_disc, vha, 0x2118,
1941 		       "%s %d %8phC priority %s, fc4type %x\n",
1942 		       __func__, __LINE__, ea->fcport->port_name,
1943 		       vha->hw->fc4_type_priority == FC4_PRIORITY_FCP ?
1944 		       "FCP" : "NVMe", ea->fcport->fc4_type);
1945 
1946 		if (N2N_TOPO(vha->hw)) {
1947 			if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME) {
1948 				ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME;
1949 				ea->fcport->fc4_type |= FS_FC4TYPE_FCP;
1950 			} else {
1951 				ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP;
1952 				ea->fcport->fc4_type |= FS_FC4TYPE_NVME;
1953 			}
1954 
1955 			if (ea->fcport->n2n_link_reset_cnt < 3) {
1956 				ea->fcport->n2n_link_reset_cnt++;
1957 				vha->relogin_jif = jiffies + 2 * HZ;
1958 				/*
1959 				 * PRLI failed. Reset link to kick start
1960 				 * state machine
1961 				 */
1962 				set_bit(N2N_LINK_RESET, &vha->dpc_flags);
1963 			} else {
1964 				ql_log(ql_log_warn, vha, 0x2119,
1965 				       "%s %d %8phC Unable to reconnect\n",
1966 				       __func__, __LINE__,
1967 				       ea->fcport->port_name);
1968 			}
1969 		} else {
1970 			/*
1971 			 * switch connect. login failed. Take connection down
1972 			 * and allow relogin to retrigger
1973 			 */
1974 			if (NVME_FCP_TARGET(ea->fcport)) {
1975 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1976 				       "%s %d %8phC post %s prli\n",
1977 				       __func__, __LINE__,
1978 				       ea->fcport->port_name,
1979 				       (ea->fcport->fc4_type & FS_FC4TYPE_NVME)
1980 				       ? "NVMe" : "FCP");
1981 				if (vha->hw->fc4_type_priority == FC4_PRIORITY_NVME)
1982 					ea->fcport->fc4_type &= ~FS_FC4TYPE_NVME;
1983 				else
1984 					ea->fcport->fc4_type &= ~FS_FC4TYPE_FCP;
1985 			}
1986 
1987 			ea->fcport->flags &= ~FCF_ASYNC_SENT;
1988 			ea->fcport->keep_nport_handle = 0;
1989 			ea->fcport->logout_on_delete = 1;
1990 			qlt_schedule_sess_for_deletion(ea->fcport);
1991 		}
1992 		break;
1993 	}
1994 }
1995 
1996 void
1997 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
1998 {
1999 	port_id_t cid;	/* conflict Nport id */
2000 	u16 lid;
2001 	struct fc_port *conflict_fcport;
2002 	unsigned long flags;
2003 	struct fc_port *fcport = ea->fcport;
2004 
2005 	ql_dbg(ql_dbg_disc, vha, 0xffff,
2006 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
2007 	    __func__, fcport->port_name, fcport->disc_state,
2008 	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
2009 	    ea->sp->gen1, fcport->rscn_gen,
2010 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
2011 
2012 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
2013 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
2014 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
2015 		    "%s %d %8phC Remote is trying to login\n",
2016 		    __func__, __LINE__, fcport->port_name);
2017 		return;
2018 	}
2019 
2020 	if ((fcport->disc_state == DSC_DELETE_PEND) ||
2021 	    (fcport->disc_state == DSC_DELETED)) {
2022 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2023 		return;
2024 	}
2025 
2026 	if (ea->sp->gen2 != fcport->login_gen) {
2027 		/* target side must have changed it. */
2028 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
2029 		    "%s %8phC generation changed\n",
2030 		    __func__, fcport->port_name);
2031 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2032 		return;
2033 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
2034 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
2035 		    "%s %8phC RSCN generation changed\n",
2036 		    __func__, fcport->port_name);
2037 		qla_rscn_replay(fcport);
2038 		qlt_schedule_sess_for_deletion(fcport);
2039 		return;
2040 	}
2041 
2042 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
2043 		  ea->data[0]);
2044 
2045 	switch (ea->data[0]) {
2046 	case MBS_COMMAND_COMPLETE:
2047 		/*
2048 		 * Driver must validate login state - If PRLI not complete,
2049 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
2050 		 * requests.
2051 		 */
2052 		if (NVME_TARGET(vha->hw, ea->fcport)) {
2053 			ql_dbg(ql_dbg_disc, vha, 0x2117,
2054 				"%s %d %8phC post prli\n",
2055 				__func__, __LINE__, ea->fcport->port_name);
2056 			qla24xx_post_prli_work(vha, ea->fcport);
2057 		} else {
2058 			ql_dbg(ql_dbg_disc, vha, 0x20ea,
2059 			    "%s %d %8phC LoopID 0x%x in use with %06x. post gpdb\n",
2060 			    __func__, __LINE__, ea->fcport->port_name,
2061 			    ea->fcport->loop_id, ea->fcport->d_id.b24);
2062 
2063 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2064 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
2065 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2066 			ea->fcport->logout_on_delete = 1;
2067 			ea->fcport->send_els_logo = 0;
2068 			ea->fcport->fw_login_state = DSC_LS_PRLI_COMP;
2069 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
2070 
2071 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
2072 		}
2073 		break;
2074 	case MBS_COMMAND_ERROR:
2075 		ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
2076 		    __func__, __LINE__, ea->fcport->port_name, ea->data[1]);
2077 
2078 		ea->fcport->flags &= ~FCF_ASYNC_SENT;
2079 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_FAILED);
2080 		if (ea->data[1] & QLA_LOGIO_LOGIN_RETRIED)
2081 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2082 		else
2083 			qla2x00_mark_device_lost(vha, ea->fcport, 1);
2084 		break;
2085 	case MBS_LOOP_ID_USED:
2086 		/* data[1] = IO PARAM 1 = nport ID  */
2087 		cid.b.domain = (ea->iop[1] >> 16) & 0xff;
2088 		cid.b.area   = (ea->iop[1] >>  8) & 0xff;
2089 		cid.b.al_pa  = ea->iop[1] & 0xff;
2090 		cid.b.rsvd_1 = 0;
2091 
2092 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
2093 		    "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
2094 		    __func__, __LINE__, ea->fcport->port_name,
2095 		    ea->fcport->loop_id, cid.b24);
2096 
2097 		set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2098 		ea->fcport->loop_id = FC_NO_LOOP_ID;
2099 		qla24xx_post_gnl_work(vha, ea->fcport);
2100 		break;
2101 	case MBS_PORT_ID_USED:
2102 		lid = ea->iop[1] & 0xffff;
2103 		qlt_find_sess_invalidate_other(vha,
2104 		    wwn_to_u64(ea->fcport->port_name),
2105 		    ea->fcport->d_id, lid, &conflict_fcport);
2106 
2107 		if (conflict_fcport) {
2108 			/*
2109 			 * Another fcport share the same loop_id/nport id.
2110 			 * Conflict fcport needs to finish cleanup before this
2111 			 * fcport can proceed to login.
2112 			 */
2113 			conflict_fcport->conflict = ea->fcport;
2114 			ea->fcport->login_pause = 1;
2115 
2116 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2117 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
2118 			    __func__, __LINE__, ea->fcport->port_name,
2119 			    ea->fcport->d_id.b24, lid);
2120 		} else {
2121 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2122 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
2123 			    __func__, __LINE__, ea->fcport->port_name,
2124 			    ea->fcport->d_id.b24, lid);
2125 
2126 			qla2x00_clear_loop_id(ea->fcport);
2127 			set_bit(lid, vha->hw->loop_id_map);
2128 			ea->fcport->loop_id = lid;
2129 			ea->fcport->keep_nport_handle = 0;
2130 			ea->fcport->logout_on_delete = 1;
2131 			qlt_schedule_sess_for_deletion(ea->fcport);
2132 		}
2133 		break;
2134 	}
2135 	return;
2136 }
2137 
2138 /****************************************************************************/
2139 /*                QLogic ISP2x00 Hardware Support Functions.                */
2140 /****************************************************************************/
2141 
2142 static int
2143 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
2144 {
2145 	int rval = QLA_SUCCESS;
2146 	struct qla_hw_data *ha = vha->hw;
2147 	uint32_t idc_major_ver, idc_minor_ver;
2148 	uint16_t config[4];
2149 
2150 	qla83xx_idc_lock(vha, 0);
2151 
2152 	/* SV: TODO: Assign initialization timeout from
2153 	 * flash-info / other param
2154 	 */
2155 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
2156 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
2157 
2158 	/* Set our fcoe function presence */
2159 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
2160 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
2161 		    "Error while setting DRV-Presence.\n");
2162 		rval = QLA_FUNCTION_FAILED;
2163 		goto exit;
2164 	}
2165 
2166 	/* Decide the reset ownership */
2167 	qla83xx_reset_ownership(vha);
2168 
2169 	/*
2170 	 * On first protocol driver load:
2171 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
2172 	 * register.
2173 	 * Others: Check compatibility with current IDC Major version.
2174 	 */
2175 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
2176 	if (ha->flags.nic_core_reset_owner) {
2177 		/* Set IDC Major version */
2178 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
2179 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
2180 
2181 		/* Clearing IDC-Lock-Recovery register */
2182 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
2183 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
2184 		/*
2185 		 * Clear further IDC participation if we are not compatible with
2186 		 * the current IDC Major Version.
2187 		 */
2188 		ql_log(ql_log_warn, vha, 0xb07d,
2189 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
2190 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
2191 		__qla83xx_clear_drv_presence(vha);
2192 		rval = QLA_FUNCTION_FAILED;
2193 		goto exit;
2194 	}
2195 	/* Each function sets its supported Minor version. */
2196 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
2197 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
2198 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
2199 
2200 	if (ha->flags.nic_core_reset_owner) {
2201 		memset(config, 0, sizeof(config));
2202 		if (!qla81xx_get_port_config(vha, config))
2203 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
2204 			    QLA8XXX_DEV_READY);
2205 	}
2206 
2207 	rval = qla83xx_idc_state_handler(vha);
2208 
2209 exit:
2210 	qla83xx_idc_unlock(vha, 0);
2211 
2212 	return rval;
2213 }
2214 
2215 /*
2216 * qla2x00_initialize_adapter
2217 *      Initialize board.
2218 *
2219 * Input:
2220 *      ha = adapter block pointer.
2221 *
2222 * Returns:
2223 *      0 = success
2224 */
2225 int
2226 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
2227 {
2228 	int	rval;
2229 	struct qla_hw_data *ha = vha->hw;
2230 	struct req_que *req = ha->req_q_map[0];
2231 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2232 
2233 	memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
2234 	memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
2235 
2236 	/* Clear adapter flags. */
2237 	vha->flags.online = 0;
2238 	ha->flags.chip_reset_done = 0;
2239 	vha->flags.reset_active = 0;
2240 	ha->flags.pci_channel_io_perm_failure = 0;
2241 	ha->flags.eeh_busy = 0;
2242 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
2243 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2244 	atomic_set(&vha->loop_state, LOOP_DOWN);
2245 	vha->device_flags = DFLG_NO_CABLE;
2246 	vha->dpc_flags = 0;
2247 	vha->flags.management_server_logged_in = 0;
2248 	vha->marker_needed = 0;
2249 	ha->isp_abort_cnt = 0;
2250 	ha->beacon_blink_led = 0;
2251 
2252 	set_bit(0, ha->req_qid_map);
2253 	set_bit(0, ha->rsp_qid_map);
2254 
2255 	ql_dbg(ql_dbg_init, vha, 0x0040,
2256 	    "Configuring PCI space...\n");
2257 	rval = ha->isp_ops->pci_config(vha);
2258 	if (rval) {
2259 		ql_log(ql_log_warn, vha, 0x0044,
2260 		    "Unable to configure PCI space.\n");
2261 		return (rval);
2262 	}
2263 
2264 	ha->isp_ops->reset_chip(vha);
2265 
2266 	/* Check for secure flash support */
2267 	if (IS_QLA28XX(ha)) {
2268 		if (rd_reg_word(&reg->mailbox12) & BIT_0)
2269 			ha->flags.secure_adapter = 1;
2270 		ql_log(ql_log_info, vha, 0xffff, "Secure Adapter: %s\n",
2271 		    (ha->flags.secure_adapter) ? "Yes" : "No");
2272 	}
2273 
2274 
2275 	rval = qla2xxx_get_flash_info(vha);
2276 	if (rval) {
2277 		ql_log(ql_log_fatal, vha, 0x004f,
2278 		    "Unable to validate FLASH data.\n");
2279 		return rval;
2280 	}
2281 
2282 	if (IS_QLA8044(ha)) {
2283 		qla8044_read_reset_template(vha);
2284 
2285 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
2286 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
2287 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
2288 		 * should honor the reset. */
2289 		if (ql2xdontresethba == 1)
2290 			qla8044_set_idc_dontreset(vha);
2291 	}
2292 
2293 	ha->isp_ops->get_flash_version(vha, req->ring);
2294 	ql_dbg(ql_dbg_init, vha, 0x0061,
2295 	    "Configure NVRAM parameters...\n");
2296 
2297 	/* Let priority default to FCP, can be overridden by nvram_config */
2298 	ha->fc4_type_priority = FC4_PRIORITY_FCP;
2299 
2300 	ha->isp_ops->nvram_config(vha);
2301 
2302 	if (ha->fc4_type_priority != FC4_PRIORITY_FCP &&
2303 	    ha->fc4_type_priority != FC4_PRIORITY_NVME)
2304 		ha->fc4_type_priority = FC4_PRIORITY_FCP;
2305 
2306 	ql_log(ql_log_info, vha, 0xffff, "FC4 priority set to %s\n",
2307 	       ha->fc4_type_priority == FC4_PRIORITY_FCP ? "FCP" : "NVMe");
2308 
2309 	if (ha->flags.disable_serdes) {
2310 		/* Mask HBA via NVRAM settings? */
2311 		ql_log(ql_log_info, vha, 0x0077,
2312 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
2313 		return QLA_FUNCTION_FAILED;
2314 	}
2315 
2316 	ql_dbg(ql_dbg_init, vha, 0x0078,
2317 	    "Verifying loaded RISC code...\n");
2318 
2319 	/* If smartsan enabled then require fdmi and rdp enabled */
2320 	if (ql2xsmartsan) {
2321 		ql2xfdmienable = 1;
2322 		ql2xrdpenable = 1;
2323 	}
2324 
2325 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
2326 		rval = ha->isp_ops->chip_diag(vha);
2327 		if (rval)
2328 			return (rval);
2329 		rval = qla2x00_setup_chip(vha);
2330 		if (rval)
2331 			return (rval);
2332 	}
2333 
2334 	if (IS_QLA84XX(ha)) {
2335 		ha->cs84xx = qla84xx_get_chip(vha);
2336 		if (!ha->cs84xx) {
2337 			ql_log(ql_log_warn, vha, 0x00d0,
2338 			    "Unable to configure ISP84XX.\n");
2339 			return QLA_FUNCTION_FAILED;
2340 		}
2341 	}
2342 
2343 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
2344 		rval = qla2x00_init_rings(vha);
2345 
2346 	/* No point in continuing if firmware initialization failed. */
2347 	if (rval != QLA_SUCCESS)
2348 		return rval;
2349 
2350 	ha->flags.chip_reset_done = 1;
2351 
2352 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
2353 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
2354 		rval = qla84xx_init_chip(vha);
2355 		if (rval != QLA_SUCCESS) {
2356 			ql_log(ql_log_warn, vha, 0x00d4,
2357 			    "Unable to initialize ISP84XX.\n");
2358 			qla84xx_put_chip(vha);
2359 		}
2360 	}
2361 
2362 	/* Load the NIC Core f/w if we are the first protocol driver. */
2363 	if (IS_QLA8031(ha)) {
2364 		rval = qla83xx_nic_core_fw_load(vha);
2365 		if (rval)
2366 			ql_log(ql_log_warn, vha, 0x0124,
2367 			    "Error in initializing NIC Core f/w.\n");
2368 	}
2369 
2370 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
2371 		qla24xx_read_fcp_prio_cfg(vha);
2372 
2373 	if (IS_P3P_TYPE(ha))
2374 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
2375 	else
2376 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
2377 
2378 	return (rval);
2379 }
2380 
2381 /**
2382  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
2383  * @vha: HA context
2384  *
2385  * Returns 0 on success.
2386  */
2387 int
2388 qla2100_pci_config(scsi_qla_host_t *vha)
2389 {
2390 	uint16_t w;
2391 	unsigned long flags;
2392 	struct qla_hw_data *ha = vha->hw;
2393 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2394 
2395 	pci_set_master(ha->pdev);
2396 	pci_try_set_mwi(ha->pdev);
2397 
2398 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2399 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2400 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2401 
2402 	pci_disable_rom(ha->pdev);
2403 
2404 	/* Get PCI bus information. */
2405 	spin_lock_irqsave(&ha->hardware_lock, flags);
2406 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2407 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2408 
2409 	return QLA_SUCCESS;
2410 }
2411 
2412 /**
2413  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
2414  * @vha: HA context
2415  *
2416  * Returns 0 on success.
2417  */
2418 int
2419 qla2300_pci_config(scsi_qla_host_t *vha)
2420 {
2421 	uint16_t	w;
2422 	unsigned long   flags = 0;
2423 	uint32_t	cnt;
2424 	struct qla_hw_data *ha = vha->hw;
2425 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2426 
2427 	pci_set_master(ha->pdev);
2428 	pci_try_set_mwi(ha->pdev);
2429 
2430 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2431 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2432 
2433 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
2434 		w &= ~PCI_COMMAND_INTX_DISABLE;
2435 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2436 
2437 	/*
2438 	 * If this is a 2300 card and not 2312, reset the
2439 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
2440 	 * the 2310 also reports itself as a 2300 so we need to get the
2441 	 * fb revision level -- a 6 indicates it really is a 2300 and
2442 	 * not a 2310.
2443 	 */
2444 	if (IS_QLA2300(ha)) {
2445 		spin_lock_irqsave(&ha->hardware_lock, flags);
2446 
2447 		/* Pause RISC. */
2448 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2449 		for (cnt = 0; cnt < 30000; cnt++) {
2450 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
2451 				break;
2452 
2453 			udelay(10);
2454 		}
2455 
2456 		/* Select FPM registers. */
2457 		wrt_reg_word(&reg->ctrl_status, 0x20);
2458 		rd_reg_word(&reg->ctrl_status);
2459 
2460 		/* Get the fb rev level */
2461 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
2462 
2463 		if (ha->fb_rev == FPM_2300)
2464 			pci_clear_mwi(ha->pdev);
2465 
2466 		/* Deselect FPM registers. */
2467 		wrt_reg_word(&reg->ctrl_status, 0x0);
2468 		rd_reg_word(&reg->ctrl_status);
2469 
2470 		/* Release RISC module. */
2471 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2472 		for (cnt = 0; cnt < 30000; cnt++) {
2473 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
2474 				break;
2475 
2476 			udelay(10);
2477 		}
2478 
2479 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
2480 	}
2481 
2482 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2483 
2484 	pci_disable_rom(ha->pdev);
2485 
2486 	/* Get PCI bus information. */
2487 	spin_lock_irqsave(&ha->hardware_lock, flags);
2488 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2489 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2490 
2491 	return QLA_SUCCESS;
2492 }
2493 
2494 /**
2495  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
2496  * @vha: HA context
2497  *
2498  * Returns 0 on success.
2499  */
2500 int
2501 qla24xx_pci_config(scsi_qla_host_t *vha)
2502 {
2503 	uint16_t w;
2504 	unsigned long flags = 0;
2505 	struct qla_hw_data *ha = vha->hw;
2506 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2507 
2508 	pci_set_master(ha->pdev);
2509 	pci_try_set_mwi(ha->pdev);
2510 
2511 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2512 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2513 	w &= ~PCI_COMMAND_INTX_DISABLE;
2514 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2515 
2516 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2517 
2518 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
2519 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
2520 		pcix_set_mmrbc(ha->pdev, 2048);
2521 
2522 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2523 	if (pci_is_pcie(ha->pdev))
2524 		pcie_set_readrq(ha->pdev, 4096);
2525 
2526 	pci_disable_rom(ha->pdev);
2527 
2528 	ha->chip_revision = ha->pdev->revision;
2529 
2530 	/* Get PCI bus information. */
2531 	spin_lock_irqsave(&ha->hardware_lock, flags);
2532 	ha->pci_attr = rd_reg_dword(&reg->ctrl_status);
2533 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2534 
2535 	return QLA_SUCCESS;
2536 }
2537 
2538 /**
2539  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
2540  * @vha: HA context
2541  *
2542  * Returns 0 on success.
2543  */
2544 int
2545 qla25xx_pci_config(scsi_qla_host_t *vha)
2546 {
2547 	uint16_t w;
2548 	struct qla_hw_data *ha = vha->hw;
2549 
2550 	pci_set_master(ha->pdev);
2551 	pci_try_set_mwi(ha->pdev);
2552 
2553 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2554 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2555 	w &= ~PCI_COMMAND_INTX_DISABLE;
2556 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2557 
2558 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2559 	if (pci_is_pcie(ha->pdev))
2560 		pcie_set_readrq(ha->pdev, 4096);
2561 
2562 	pci_disable_rom(ha->pdev);
2563 
2564 	ha->chip_revision = ha->pdev->revision;
2565 
2566 	return QLA_SUCCESS;
2567 }
2568 
2569 /**
2570  * qla2x00_isp_firmware() - Choose firmware image.
2571  * @vha: HA context
2572  *
2573  * Returns 0 on success.
2574  */
2575 static int
2576 qla2x00_isp_firmware(scsi_qla_host_t *vha)
2577 {
2578 	int  rval;
2579 	uint16_t loop_id, topo, sw_cap;
2580 	uint8_t domain, area, al_pa;
2581 	struct qla_hw_data *ha = vha->hw;
2582 
2583 	/* Assume loading risc code */
2584 	rval = QLA_FUNCTION_FAILED;
2585 
2586 	if (ha->flags.disable_risc_code_load) {
2587 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
2588 
2589 		/* Verify checksum of loaded RISC code. */
2590 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
2591 		if (rval == QLA_SUCCESS) {
2592 			/* And, verify we are not in ROM code. */
2593 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2594 			    &area, &domain, &topo, &sw_cap);
2595 		}
2596 	}
2597 
2598 	if (rval)
2599 		ql_dbg(ql_dbg_init, vha, 0x007a,
2600 		    "**** Load RISC code ****.\n");
2601 
2602 	return (rval);
2603 }
2604 
2605 /**
2606  * qla2x00_reset_chip() - Reset ISP chip.
2607  * @vha: HA context
2608  *
2609  * Returns 0 on success.
2610  */
2611 int
2612 qla2x00_reset_chip(scsi_qla_host_t *vha)
2613 {
2614 	unsigned long   flags = 0;
2615 	struct qla_hw_data *ha = vha->hw;
2616 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2617 	uint32_t	cnt;
2618 	uint16_t	cmd;
2619 	int rval = QLA_FUNCTION_FAILED;
2620 
2621 	if (unlikely(pci_channel_offline(ha->pdev)))
2622 		return rval;
2623 
2624 	ha->isp_ops->disable_intrs(ha);
2625 
2626 	spin_lock_irqsave(&ha->hardware_lock, flags);
2627 
2628 	/* Turn off master enable */
2629 	cmd = 0;
2630 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
2631 	cmd &= ~PCI_COMMAND_MASTER;
2632 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2633 
2634 	if (!IS_QLA2100(ha)) {
2635 		/* Pause RISC. */
2636 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2637 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
2638 			for (cnt = 0; cnt < 30000; cnt++) {
2639 				if ((rd_reg_word(&reg->hccr) &
2640 				    HCCR_RISC_PAUSE) != 0)
2641 					break;
2642 				udelay(100);
2643 			}
2644 		} else {
2645 			rd_reg_word(&reg->hccr);	/* PCI Posting. */
2646 			udelay(10);
2647 		}
2648 
2649 		/* Select FPM registers. */
2650 		wrt_reg_word(&reg->ctrl_status, 0x20);
2651 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2652 
2653 		/* FPM Soft Reset. */
2654 		wrt_reg_word(&reg->fpm_diag_config, 0x100);
2655 		rd_reg_word(&reg->fpm_diag_config);	/* PCI Posting. */
2656 
2657 		/* Toggle Fpm Reset. */
2658 		if (!IS_QLA2200(ha)) {
2659 			wrt_reg_word(&reg->fpm_diag_config, 0x0);
2660 			rd_reg_word(&reg->fpm_diag_config); /* PCI Posting. */
2661 		}
2662 
2663 		/* Select frame buffer registers. */
2664 		wrt_reg_word(&reg->ctrl_status, 0x10);
2665 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2666 
2667 		/* Reset frame buffer FIFOs. */
2668 		if (IS_QLA2200(ha)) {
2669 			WRT_FB_CMD_REG(ha, reg, 0xa000);
2670 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
2671 		} else {
2672 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
2673 
2674 			/* Read back fb_cmd until zero or 3 seconds max */
2675 			for (cnt = 0; cnt < 3000; cnt++) {
2676 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
2677 					break;
2678 				udelay(100);
2679 			}
2680 		}
2681 
2682 		/* Select RISC module registers. */
2683 		wrt_reg_word(&reg->ctrl_status, 0);
2684 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2685 
2686 		/* Reset RISC processor. */
2687 		wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2688 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2689 
2690 		/* Release RISC processor. */
2691 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2692 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2693 	}
2694 
2695 	wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
2696 	wrt_reg_word(&reg->hccr, HCCR_CLR_HOST_INT);
2697 
2698 	/* Reset ISP chip. */
2699 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2700 
2701 	/* Wait for RISC to recover from reset. */
2702 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2703 		/*
2704 		 * It is necessary to for a delay here since the card doesn't
2705 		 * respond to PCI reads during a reset. On some architectures
2706 		 * this will result in an MCA.
2707 		 */
2708 		udelay(20);
2709 		for (cnt = 30000; cnt; cnt--) {
2710 			if ((rd_reg_word(&reg->ctrl_status) &
2711 			    CSR_ISP_SOFT_RESET) == 0)
2712 				break;
2713 			udelay(100);
2714 		}
2715 	} else
2716 		udelay(10);
2717 
2718 	/* Reset RISC processor. */
2719 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2720 
2721 	wrt_reg_word(&reg->semaphore, 0);
2722 
2723 	/* Release RISC processor. */
2724 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2725 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
2726 
2727 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2728 		for (cnt = 0; cnt < 30000; cnt++) {
2729 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
2730 				break;
2731 
2732 			udelay(100);
2733 		}
2734 	} else
2735 		udelay(100);
2736 
2737 	/* Turn on master enable */
2738 	cmd |= PCI_COMMAND_MASTER;
2739 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2740 
2741 	/* Disable RISC pause on FPM parity error. */
2742 	if (!IS_QLA2100(ha)) {
2743 		wrt_reg_word(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
2744 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2745 	}
2746 
2747 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2748 
2749 	return QLA_SUCCESS;
2750 }
2751 
2752 /**
2753  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
2754  * @vha: HA context
2755  *
2756  * Returns 0 on success.
2757  */
2758 static int
2759 qla81xx_reset_mpi(scsi_qla_host_t *vha)
2760 {
2761 	uint16_t mb[4] = {0x1010, 0, 1, 0};
2762 
2763 	if (!IS_QLA81XX(vha->hw))
2764 		return QLA_SUCCESS;
2765 
2766 	return qla81xx_write_mpi_register(vha, mb);
2767 }
2768 
2769 /**
2770  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
2771  * @vha: HA context
2772  *
2773  * Returns 0 on success.
2774  */
2775 static inline int
2776 qla24xx_reset_risc(scsi_qla_host_t *vha)
2777 {
2778 	unsigned long flags = 0;
2779 	struct qla_hw_data *ha = vha->hw;
2780 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2781 	uint32_t cnt;
2782 	uint16_t wd;
2783 	static int abts_cnt; /* ISP abort retry counts */
2784 	int rval = QLA_SUCCESS;
2785 
2786 	spin_lock_irqsave(&ha->hardware_lock, flags);
2787 
2788 	/* Reset RISC. */
2789 	wrt_reg_dword(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2790 	for (cnt = 0; cnt < 30000; cnt++) {
2791 		if ((rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
2792 			break;
2793 
2794 		udelay(10);
2795 	}
2796 
2797 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE))
2798 		set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
2799 
2800 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
2801 	    "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
2802 	    rd_reg_dword(&reg->hccr),
2803 	    rd_reg_dword(&reg->ctrl_status),
2804 	    (rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE));
2805 
2806 	wrt_reg_dword(&reg->ctrl_status,
2807 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2808 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
2809 
2810 	udelay(100);
2811 
2812 	/* Wait for firmware to complete NVRAM accesses. */
2813 	rd_reg_word(&reg->mailbox0);
2814 	for (cnt = 10000; rd_reg_word(&reg->mailbox0) != 0 &&
2815 	    rval == QLA_SUCCESS; cnt--) {
2816 		barrier();
2817 		if (cnt)
2818 			udelay(5);
2819 		else
2820 			rval = QLA_FUNCTION_TIMEOUT;
2821 	}
2822 
2823 	if (rval == QLA_SUCCESS)
2824 		set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
2825 
2826 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
2827 	    "HCCR: 0x%x, MailBox0 Status 0x%x\n",
2828 	    rd_reg_dword(&reg->hccr),
2829 	    rd_reg_word(&reg->mailbox0));
2830 
2831 	/* Wait for soft-reset to complete. */
2832 	rd_reg_dword(&reg->ctrl_status);
2833 	for (cnt = 0; cnt < 60; cnt++) {
2834 		barrier();
2835 		if ((rd_reg_dword(&reg->ctrl_status) &
2836 		    CSRX_ISP_SOFT_RESET) == 0)
2837 			break;
2838 
2839 		udelay(5);
2840 	}
2841 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_ISP_SOFT_RESET))
2842 		set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
2843 
2844 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
2845 	    "HCCR: 0x%x, Soft Reset status: 0x%x\n",
2846 	    rd_reg_dword(&reg->hccr),
2847 	    rd_reg_dword(&reg->ctrl_status));
2848 
2849 	/* If required, do an MPI FW reset now */
2850 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
2851 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
2852 			if (++abts_cnt < 5) {
2853 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2854 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
2855 			} else {
2856 				/*
2857 				 * We exhausted the ISP abort retries. We have to
2858 				 * set the board offline.
2859 				 */
2860 				abts_cnt = 0;
2861 				vha->flags.online = 0;
2862 			}
2863 		}
2864 	}
2865 
2866 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
2867 	rd_reg_dword(&reg->hccr);
2868 
2869 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
2870 	rd_reg_dword(&reg->hccr);
2871 
2872 	wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_RESET);
2873 	rd_reg_dword(&reg->hccr);
2874 
2875 	rd_reg_word(&reg->mailbox0);
2876 	for (cnt = 60; rd_reg_word(&reg->mailbox0) != 0 &&
2877 	    rval == QLA_SUCCESS; cnt--) {
2878 		barrier();
2879 		if (cnt)
2880 			udelay(5);
2881 		else
2882 			rval = QLA_FUNCTION_TIMEOUT;
2883 	}
2884 	if (rval == QLA_SUCCESS)
2885 		set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
2886 
2887 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
2888 	    "Host Risc 0x%x, mailbox0 0x%x\n",
2889 	    rd_reg_dword(&reg->hccr),
2890 	     rd_reg_word(&reg->mailbox0));
2891 
2892 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2893 
2894 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
2895 	    "Driver in %s mode\n",
2896 	    IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
2897 
2898 	if (IS_NOPOLLING_TYPE(ha))
2899 		ha->isp_ops->enable_intrs(ha);
2900 
2901 	return rval;
2902 }
2903 
2904 static void
2905 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
2906 {
2907 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2908 
2909 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2910 	*data = rd_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET);
2911 }
2912 
2913 static void
2914 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
2915 {
2916 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
2917 
2918 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
2919 	wrt_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET, data);
2920 }
2921 
2922 static void
2923 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
2924 {
2925 	uint32_t wd32 = 0;
2926 	uint delta_msec = 100;
2927 	uint elapsed_msec = 0;
2928 	uint timeout_msec;
2929 	ulong n;
2930 
2931 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
2932 	    vha->hw->pdev->subsystem_device != 0x0240)
2933 		return;
2934 
2935 	wrt_reg_dword(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
2936 	udelay(100);
2937 
2938 attempt:
2939 	timeout_msec = TIMEOUT_SEMAPHORE;
2940 	n = timeout_msec / delta_msec;
2941 	while (n--) {
2942 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
2943 		qla25xx_read_risc_sema_reg(vha, &wd32);
2944 		if (wd32 & RISC_SEMAPHORE)
2945 			break;
2946 		msleep(delta_msec);
2947 		elapsed_msec += delta_msec;
2948 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2949 			goto force;
2950 	}
2951 
2952 	if (!(wd32 & RISC_SEMAPHORE))
2953 		goto force;
2954 
2955 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
2956 		goto acquired;
2957 
2958 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
2959 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
2960 	n = timeout_msec / delta_msec;
2961 	while (n--) {
2962 		qla25xx_read_risc_sema_reg(vha, &wd32);
2963 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
2964 			break;
2965 		msleep(delta_msec);
2966 		elapsed_msec += delta_msec;
2967 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
2968 			goto force;
2969 	}
2970 
2971 	if (wd32 & RISC_SEMAPHORE_FORCE)
2972 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
2973 
2974 	goto attempt;
2975 
2976 force:
2977 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
2978 
2979 acquired:
2980 	return;
2981 }
2982 
2983 /**
2984  * qla24xx_reset_chip() - Reset ISP24xx chip.
2985  * @vha: HA context
2986  *
2987  * Returns 0 on success.
2988  */
2989 int
2990 qla24xx_reset_chip(scsi_qla_host_t *vha)
2991 {
2992 	struct qla_hw_data *ha = vha->hw;
2993 	int rval = QLA_FUNCTION_FAILED;
2994 
2995 	if (pci_channel_offline(ha->pdev) &&
2996 	    ha->flags.pci_channel_io_perm_failure) {
2997 		return rval;
2998 	}
2999 
3000 	ha->isp_ops->disable_intrs(ha);
3001 
3002 	qla25xx_manipulate_risc_semaphore(vha);
3003 
3004 	/* Perform RISC reset. */
3005 	rval = qla24xx_reset_risc(vha);
3006 
3007 	return rval;
3008 }
3009 
3010 /**
3011  * qla2x00_chip_diag() - Test chip for proper operation.
3012  * @vha: HA context
3013  *
3014  * Returns 0 on success.
3015  */
3016 int
3017 qla2x00_chip_diag(scsi_qla_host_t *vha)
3018 {
3019 	int		rval;
3020 	struct qla_hw_data *ha = vha->hw;
3021 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3022 	unsigned long	flags = 0;
3023 	uint16_t	data;
3024 	uint32_t	cnt;
3025 	uint16_t	mb[5];
3026 	struct req_que *req = ha->req_q_map[0];
3027 
3028 	/* Assume a failed state */
3029 	rval = QLA_FUNCTION_FAILED;
3030 
3031 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
3032 	       &reg->flash_address);
3033 
3034 	spin_lock_irqsave(&ha->hardware_lock, flags);
3035 
3036 	/* Reset ISP chip. */
3037 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
3038 
3039 	/*
3040 	 * We need to have a delay here since the card will not respond while
3041 	 * in reset causing an MCA on some architectures.
3042 	 */
3043 	udelay(20);
3044 	data = qla2x00_debounce_register(&reg->ctrl_status);
3045 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
3046 		udelay(5);
3047 		data = rd_reg_word(&reg->ctrl_status);
3048 		barrier();
3049 	}
3050 
3051 	if (!cnt)
3052 		goto chip_diag_failed;
3053 
3054 	ql_dbg(ql_dbg_init, vha, 0x007c,
3055 	    "Reset register cleared by chip reset.\n");
3056 
3057 	/* Reset RISC processor. */
3058 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
3059 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
3060 
3061 	/* Workaround for QLA2312 PCI parity error */
3062 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
3063 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
3064 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
3065 			udelay(5);
3066 			data = RD_MAILBOX_REG(ha, reg, 0);
3067 			barrier();
3068 		}
3069 	} else
3070 		udelay(10);
3071 
3072 	if (!cnt)
3073 		goto chip_diag_failed;
3074 
3075 	/* Check product ID of chip */
3076 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
3077 
3078 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
3079 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
3080 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
3081 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
3082 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
3083 	    mb[3] != PROD_ID_3) {
3084 		ql_log(ql_log_warn, vha, 0x0062,
3085 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
3086 		    mb[1], mb[2], mb[3]);
3087 
3088 		goto chip_diag_failed;
3089 	}
3090 	ha->product_id[0] = mb[1];
3091 	ha->product_id[1] = mb[2];
3092 	ha->product_id[2] = mb[3];
3093 	ha->product_id[3] = mb[4];
3094 
3095 	/* Adjust fw RISC transfer size */
3096 	if (req->length > 1024)
3097 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
3098 	else
3099 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
3100 		    req->length;
3101 
3102 	if (IS_QLA2200(ha) &&
3103 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
3104 		/* Limit firmware transfer size with a 2200A */
3105 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
3106 
3107 		ha->device_type |= DT_ISP2200A;
3108 		ha->fw_transfer_size = 128;
3109 	}
3110 
3111 	/* Wrap Incoming Mailboxes Test. */
3112 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3113 
3114 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
3115 	rval = qla2x00_mbx_reg_test(vha);
3116 	if (rval)
3117 		ql_log(ql_log_warn, vha, 0x0080,
3118 		    "Failed mailbox send register test.\n");
3119 	else
3120 		/* Flag a successful rval */
3121 		rval = QLA_SUCCESS;
3122 	spin_lock_irqsave(&ha->hardware_lock, flags);
3123 
3124 chip_diag_failed:
3125 	if (rval)
3126 		ql_log(ql_log_info, vha, 0x0081,
3127 		    "Chip diagnostics **** FAILED ****.\n");
3128 
3129 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3130 
3131 	return (rval);
3132 }
3133 
3134 /**
3135  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
3136  * @vha: HA context
3137  *
3138  * Returns 0 on success.
3139  */
3140 int
3141 qla24xx_chip_diag(scsi_qla_host_t *vha)
3142 {
3143 	int rval;
3144 	struct qla_hw_data *ha = vha->hw;
3145 	struct req_que *req = ha->req_q_map[0];
3146 
3147 	if (IS_P3P_TYPE(ha))
3148 		return QLA_SUCCESS;
3149 
3150 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
3151 
3152 	rval = qla2x00_mbx_reg_test(vha);
3153 	if (rval) {
3154 		ql_log(ql_log_warn, vha, 0x0082,
3155 		    "Failed mailbox send register test.\n");
3156 	} else {
3157 		/* Flag a successful rval */
3158 		rval = QLA_SUCCESS;
3159 	}
3160 
3161 	return rval;
3162 }
3163 
3164 static void
3165 qla2x00_init_fce_trace(scsi_qla_host_t *vha)
3166 {
3167 	int rval;
3168 	dma_addr_t tc_dma;
3169 	void *tc;
3170 	struct qla_hw_data *ha = vha->hw;
3171 
3172 	if (!IS_FWI2_CAPABLE(ha))
3173 		return;
3174 
3175 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3176 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3177 		return;
3178 
3179 	if (ha->fce) {
3180 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3181 		       "%s: FCE Mem is already allocated.\n",
3182 		       __func__);
3183 		return;
3184 	}
3185 
3186 	/* Allocate memory for Fibre Channel Event Buffer. */
3187 	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
3188 				GFP_KERNEL);
3189 	if (!tc) {
3190 		ql_log(ql_log_warn, vha, 0x00be,
3191 		       "Unable to allocate (%d KB) for FCE.\n",
3192 		       FCE_SIZE / 1024);
3193 		return;
3194 	}
3195 
3196 	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
3197 					ha->fce_mb, &ha->fce_bufs);
3198 	if (rval) {
3199 		ql_log(ql_log_warn, vha, 0x00bf,
3200 		       "Unable to initialize FCE (%d).\n", rval);
3201 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
3202 		return;
3203 	}
3204 
3205 	ql_dbg(ql_dbg_init, vha, 0x00c0,
3206 	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
3207 
3208 	ha->flags.fce_enabled = 1;
3209 	ha->fce_dma = tc_dma;
3210 	ha->fce = tc;
3211 }
3212 
3213 static void
3214 qla2x00_init_eft_trace(scsi_qla_host_t *vha)
3215 {
3216 	int rval;
3217 	dma_addr_t tc_dma;
3218 	void *tc;
3219 	struct qla_hw_data *ha = vha->hw;
3220 
3221 	if (!IS_FWI2_CAPABLE(ha))
3222 		return;
3223 
3224 	if (ha->eft) {
3225 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3226 		    "%s: EFT Mem is already allocated.\n",
3227 		    __func__);
3228 		return;
3229 	}
3230 
3231 	/* Allocate memory for Extended Trace Buffer. */
3232 	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
3233 				GFP_KERNEL);
3234 	if (!tc) {
3235 		ql_log(ql_log_warn, vha, 0x00c1,
3236 		       "Unable to allocate (%d KB) for EFT.\n",
3237 		       EFT_SIZE / 1024);
3238 		return;
3239 	}
3240 
3241 	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
3242 	if (rval) {
3243 		ql_log(ql_log_warn, vha, 0x00c2,
3244 		       "Unable to initialize EFT (%d).\n", rval);
3245 		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
3246 		return;
3247 	}
3248 
3249 	ql_dbg(ql_dbg_init, vha, 0x00c3,
3250 	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
3251 
3252 	ha->eft_dma = tc_dma;
3253 	ha->eft = tc;
3254 }
3255 
3256 static void
3257 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
3258 {
3259 	qla2x00_init_fce_trace(vha);
3260 	qla2x00_init_eft_trace(vha);
3261 }
3262 
3263 void
3264 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
3265 {
3266 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
3267 	    eft_size, fce_size, mq_size;
3268 	struct qla_hw_data *ha = vha->hw;
3269 	struct req_que *req = ha->req_q_map[0];
3270 	struct rsp_que *rsp = ha->rsp_q_map[0];
3271 	struct qla2xxx_fw_dump *fw_dump;
3272 
3273 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
3274 	req_q_size = rsp_q_size = 0;
3275 
3276 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3277 		fixed_size = sizeof(struct qla2100_fw_dump);
3278 	} else if (IS_QLA23XX(ha)) {
3279 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
3280 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
3281 		    sizeof(uint16_t);
3282 	} else if (IS_FWI2_CAPABLE(ha)) {
3283 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3284 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
3285 		else if (IS_QLA81XX(ha))
3286 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
3287 		else if (IS_QLA25XX(ha))
3288 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
3289 		else
3290 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
3291 
3292 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
3293 		    sizeof(uint32_t);
3294 		if (ha->mqenable) {
3295 			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) &&
3296 			    !IS_QLA28XX(ha))
3297 				mq_size = sizeof(struct qla2xxx_mq_chain);
3298 			/*
3299 			 * Allocate maximum buffer size for all queues - Q0.
3300 			 * Resizing must be done at end-of-dump processing.
3301 			 */
3302 			mq_size += (ha->max_req_queues - 1) *
3303 			    (req->length * sizeof(request_t));
3304 			mq_size += (ha->max_rsp_queues - 1) *
3305 			    (rsp->length * sizeof(response_t));
3306 		}
3307 		if (ha->tgt.atio_ring)
3308 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
3309 
3310 		qla2x00_init_fce_trace(vha);
3311 		if (ha->fce)
3312 			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
3313 		qla2x00_init_eft_trace(vha);
3314 		if (ha->eft)
3315 			eft_size = EFT_SIZE;
3316 	}
3317 
3318 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3319 		struct fwdt *fwdt = ha->fwdt;
3320 		uint j;
3321 
3322 		for (j = 0; j < 2; j++, fwdt++) {
3323 			if (!fwdt->template) {
3324 				ql_dbg(ql_dbg_init, vha, 0x00ba,
3325 				    "-> fwdt%u no template\n", j);
3326 				continue;
3327 			}
3328 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3329 			    "-> fwdt%u calculating fwdump size...\n", j);
3330 			fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
3331 			    vha, fwdt->template);
3332 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3333 			    "-> fwdt%u calculated fwdump size = %#lx bytes\n",
3334 			    j, fwdt->dump_size);
3335 			dump_size += fwdt->dump_size;
3336 		}
3337 		/* Add space for spare MPI fw dump. */
3338 		dump_size += ha->fwdt[1].dump_size;
3339 	} else {
3340 		req_q_size = req->length * sizeof(request_t);
3341 		rsp_q_size = rsp->length * sizeof(response_t);
3342 		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3343 		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
3344 			+ eft_size;
3345 		ha->chain_offset = dump_size;
3346 		dump_size += mq_size + fce_size;
3347 		if (ha->exchoffld_buf)
3348 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3349 				ha->exchoffld_size;
3350 		if (ha->exlogin_buf)
3351 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3352 				ha->exlogin_size;
3353 	}
3354 
3355 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
3356 
3357 		ql_dbg(ql_dbg_init, vha, 0x00c5,
3358 		    "%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
3359 		    __func__, dump_size, ha->fw_dump_len,
3360 		    ha->fw_dump_alloc_len);
3361 
3362 		fw_dump = vmalloc(dump_size);
3363 		if (!fw_dump) {
3364 			ql_log(ql_log_warn, vha, 0x00c4,
3365 			    "Unable to allocate (%d KB) for firmware dump.\n",
3366 			    dump_size / 1024);
3367 		} else {
3368 			mutex_lock(&ha->optrom_mutex);
3369 			if (ha->fw_dumped) {
3370 				memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
3371 				vfree(ha->fw_dump);
3372 				ha->fw_dump = fw_dump;
3373 				ha->fw_dump_alloc_len =  dump_size;
3374 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3375 				    "Re-Allocated (%d KB) and save firmware dump.\n",
3376 				    dump_size / 1024);
3377 			} else {
3378 				vfree(ha->fw_dump);
3379 				ha->fw_dump = fw_dump;
3380 
3381 				ha->fw_dump_len = ha->fw_dump_alloc_len =
3382 				    dump_size;
3383 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3384 				    "Allocated (%d KB) for firmware dump.\n",
3385 				    dump_size / 1024);
3386 
3387 				if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3388 					ha->mpi_fw_dump = (char *)fw_dump +
3389 						ha->fwdt[1].dump_size;
3390 					mutex_unlock(&ha->optrom_mutex);
3391 					return;
3392 				}
3393 
3394 				ha->fw_dump->signature[0] = 'Q';
3395 				ha->fw_dump->signature[1] = 'L';
3396 				ha->fw_dump->signature[2] = 'G';
3397 				ha->fw_dump->signature[3] = 'C';
3398 				ha->fw_dump->version = htonl(1);
3399 
3400 				ha->fw_dump->fixed_size = htonl(fixed_size);
3401 				ha->fw_dump->mem_size = htonl(mem_size);
3402 				ha->fw_dump->req_q_size = htonl(req_q_size);
3403 				ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3404 
3405 				ha->fw_dump->eft_size = htonl(eft_size);
3406 				ha->fw_dump->eft_addr_l =
3407 				    htonl(LSD(ha->eft_dma));
3408 				ha->fw_dump->eft_addr_h =
3409 				    htonl(MSD(ha->eft_dma));
3410 
3411 				ha->fw_dump->header_size =
3412 					htonl(offsetof
3413 					    (struct qla2xxx_fw_dump, isp));
3414 			}
3415 			mutex_unlock(&ha->optrom_mutex);
3416 		}
3417 	}
3418 }
3419 
3420 static int
3421 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3422 {
3423 #define MPS_MASK	0xe0
3424 	int rval;
3425 	uint16_t dc;
3426 	uint32_t dw;
3427 
3428 	if (!IS_QLA81XX(vha->hw))
3429 		return QLA_SUCCESS;
3430 
3431 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3432 	if (rval != QLA_SUCCESS) {
3433 		ql_log(ql_log_warn, vha, 0x0105,
3434 		    "Unable to acquire semaphore.\n");
3435 		goto done;
3436 	}
3437 
3438 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3439 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3440 	if (rval != QLA_SUCCESS) {
3441 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3442 		goto done_release;
3443 	}
3444 
3445 	dc &= MPS_MASK;
3446 	if (dc == (dw & MPS_MASK))
3447 		goto done_release;
3448 
3449 	dw &= ~MPS_MASK;
3450 	dw |= dc;
3451 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3452 	if (rval != QLA_SUCCESS) {
3453 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3454 	}
3455 
3456 done_release:
3457 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3458 	if (rval != QLA_SUCCESS) {
3459 		ql_log(ql_log_warn, vha, 0x006d,
3460 		    "Unable to release semaphore.\n");
3461 	}
3462 
3463 done:
3464 	return rval;
3465 }
3466 
3467 int
3468 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3469 {
3470 	/* Don't try to reallocate the array */
3471 	if (req->outstanding_cmds)
3472 		return QLA_SUCCESS;
3473 
3474 	if (!IS_FWI2_CAPABLE(ha))
3475 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3476 	else {
3477 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3478 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3479 		else
3480 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3481 	}
3482 
3483 	req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3484 					sizeof(srb_t *),
3485 					GFP_KERNEL);
3486 
3487 	if (!req->outstanding_cmds) {
3488 		/*
3489 		 * Try to allocate a minimal size just so we can get through
3490 		 * initialization.
3491 		 */
3492 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3493 		req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3494 						sizeof(srb_t *),
3495 						GFP_KERNEL);
3496 
3497 		if (!req->outstanding_cmds) {
3498 			ql_log(ql_log_fatal, NULL, 0x0126,
3499 			    "Failed to allocate memory for "
3500 			    "outstanding_cmds for req_que %p.\n", req);
3501 			req->num_outstanding_cmds = 0;
3502 			return QLA_FUNCTION_FAILED;
3503 		}
3504 	}
3505 
3506 	return QLA_SUCCESS;
3507 }
3508 
3509 #define PRINT_FIELD(_field, _flag, _str) {		\
3510 	if (a0->_field & _flag) {\
3511 		if (p) {\
3512 			strcat(ptr, "|");\
3513 			ptr++;\
3514 			leftover--;\
3515 		} \
3516 		len = snprintf(ptr, leftover, "%s", _str);	\
3517 		p = 1;\
3518 		leftover -= len;\
3519 		ptr += len; \
3520 	} \
3521 }
3522 
3523 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3524 {
3525 #define STR_LEN 64
3526 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3527 	u8 str[STR_LEN], *ptr, p;
3528 	int leftover, len;
3529 
3530 	memset(str, 0, STR_LEN);
3531 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3532 	ql_dbg(ql_dbg_init, vha, 0x015a,
3533 	    "SFP MFG Name: %s\n", str);
3534 
3535 	memset(str, 0, STR_LEN);
3536 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3537 	ql_dbg(ql_dbg_init, vha, 0x015c,
3538 	    "SFP Part Name: %s\n", str);
3539 
3540 	/* media */
3541 	memset(str, 0, STR_LEN);
3542 	ptr = str;
3543 	leftover = STR_LEN;
3544 	p = len = 0;
3545 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3546 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3547 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3548 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3549 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3550 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3551 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3552 	ql_dbg(ql_dbg_init, vha, 0x0160,
3553 	    "SFP Media: %s\n", str);
3554 
3555 	/* link length */
3556 	memset(str, 0, STR_LEN);
3557 	ptr = str;
3558 	leftover = STR_LEN;
3559 	p = len = 0;
3560 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3561 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3562 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3563 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3564 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3565 	ql_dbg(ql_dbg_init, vha, 0x0196,
3566 	    "SFP Link Length: %s\n", str);
3567 
3568 	memset(str, 0, STR_LEN);
3569 	ptr = str;
3570 	leftover = STR_LEN;
3571 	p = len = 0;
3572 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3573 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3574 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3575 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3576 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3577 	ql_dbg(ql_dbg_init, vha, 0x016e,
3578 	    "SFP FC Link Tech: %s\n", str);
3579 
3580 	if (a0->length_km)
3581 		ql_dbg(ql_dbg_init, vha, 0x016f,
3582 		    "SFP Distant: %d km\n", a0->length_km);
3583 	if (a0->length_100m)
3584 		ql_dbg(ql_dbg_init, vha, 0x0170,
3585 		    "SFP Distant: %d m\n", a0->length_100m*100);
3586 	if (a0->length_50um_10m)
3587 		ql_dbg(ql_dbg_init, vha, 0x0189,
3588 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3589 	if (a0->length_62um_10m)
3590 		ql_dbg(ql_dbg_init, vha, 0x018a,
3591 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3592 	if (a0->length_om4_10m)
3593 		ql_dbg(ql_dbg_init, vha, 0x0194,
3594 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3595 	if (a0->length_om3_10m)
3596 		ql_dbg(ql_dbg_init, vha, 0x0195,
3597 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3598 }
3599 
3600 
3601 /**
3602  * qla24xx_detect_sfp()
3603  *
3604  * @vha: adapter state pointer.
3605  *
3606  * @return
3607  *	0 -- Configure firmware to use short-range settings -- normal
3608  *	     buffer-to-buffer credits.
3609  *
3610  *	1 -- Configure firmware to use long-range settings -- extra
3611  *	     buffer-to-buffer credits should be allocated with
3612  *	     ha->lr_distance containing distance settings from NVRAM or SFP
3613  *	     (if supported).
3614  */
3615 int
3616 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3617 {
3618 	int rc, used_nvram;
3619 	struct sff_8247_a0 *a;
3620 	struct qla_hw_data *ha = vha->hw;
3621 	struct nvram_81xx *nv = ha->nvram;
3622 #define LR_DISTANCE_UNKNOWN	2
3623 	static const char * const types[] = { "Short", "Long" };
3624 	static const char * const lengths[] = { "(10km)", "(5km)", "" };
3625 	u8 ll = 0;
3626 
3627 	/* Seed with NVRAM settings. */
3628 	used_nvram = 0;
3629 	ha->flags.lr_detected = 0;
3630 	if (IS_BPM_RANGE_CAPABLE(ha) &&
3631 	    (nv->enhanced_features & NEF_LR_DIST_ENABLE)) {
3632 		used_nvram = 1;
3633 		ha->flags.lr_detected = 1;
3634 		ha->lr_distance =
3635 		    (nv->enhanced_features >> LR_DIST_NV_POS)
3636 		     & LR_DIST_NV_MASK;
3637 	}
3638 
3639 	if (!IS_BPM_ENABLED(vha))
3640 		goto out;
3641 	/* Determine SR/LR capabilities of SFP/Transceiver. */
3642 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3643 	if (rc)
3644 		goto out;
3645 
3646 	used_nvram = 0;
3647 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3648 	qla2xxx_print_sfp_info(vha);
3649 
3650 	ha->flags.lr_detected = 0;
3651 	ll = a->fc_ll_cc7;
3652 	if (ll & FC_LL_VL || ll & FC_LL_L) {
3653 		/* Long range, track length. */
3654 		ha->flags.lr_detected = 1;
3655 
3656 		if (a->length_km > 5 || a->length_100m > 50)
3657 			ha->lr_distance = LR_DISTANCE_10K;
3658 		else
3659 			ha->lr_distance = LR_DISTANCE_5K;
3660 	}
3661 
3662 out:
3663 	ql_dbg(ql_dbg_async, vha, 0x507b,
3664 	    "SFP detect: %s-Range SFP %s (nvr=%x ll=%x lr=%x lrd=%x).\n",
3665 	    types[ha->flags.lr_detected],
3666 	    ha->flags.lr_detected ? lengths[ha->lr_distance] :
3667 	       lengths[LR_DISTANCE_UNKNOWN],
3668 	    used_nvram, ll, ha->flags.lr_detected, ha->lr_distance);
3669 	return ha->flags.lr_detected;
3670 }
3671 
3672 void qla_init_iocb_limit(scsi_qla_host_t *vha)
3673 {
3674 	u16 i, num_qps;
3675 	u32 limit;
3676 	struct qla_hw_data *ha = vha->hw;
3677 
3678 	num_qps = ha->num_qpairs + 1;
3679 	limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100;
3680 
3681 	ha->base_qpair->fwres.iocbs_total = ha->orig_fw_iocb_count;
3682 	ha->base_qpair->fwres.iocbs_limit = limit;
3683 	ha->base_qpair->fwres.iocbs_qp_limit = limit / num_qps;
3684 	ha->base_qpair->fwres.iocbs_used = 0;
3685 	for (i = 0; i < ha->max_qpairs; i++) {
3686 		if (ha->queue_pair_map[i])  {
3687 			ha->queue_pair_map[i]->fwres.iocbs_total =
3688 				ha->orig_fw_iocb_count;
3689 			ha->queue_pair_map[i]->fwres.iocbs_limit = limit;
3690 			ha->queue_pair_map[i]->fwres.iocbs_qp_limit =
3691 				limit / num_qps;
3692 			ha->queue_pair_map[i]->fwres.iocbs_used = 0;
3693 		}
3694 	}
3695 }
3696 
3697 /**
3698  * qla2x00_setup_chip() - Load and start RISC firmware.
3699  * @vha: HA context
3700  *
3701  * Returns 0 on success.
3702  */
3703 static int
3704 qla2x00_setup_chip(scsi_qla_host_t *vha)
3705 {
3706 	int rval;
3707 	uint32_t srisc_address = 0;
3708 	struct qla_hw_data *ha = vha->hw;
3709 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3710 	unsigned long flags;
3711 	uint16_t fw_major_version;
3712 	int done_once = 0;
3713 
3714 	if (IS_P3P_TYPE(ha)) {
3715 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3716 		if (rval == QLA_SUCCESS) {
3717 			qla2x00_stop_firmware(vha);
3718 			goto enable_82xx_npiv;
3719 		} else
3720 			goto failed;
3721 	}
3722 
3723 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3724 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3725 		spin_lock_irqsave(&ha->hardware_lock, flags);
3726 		wrt_reg_word(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
3727 		rd_reg_word(&reg->hccr);
3728 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3729 	}
3730 
3731 	qla81xx_mpi_sync(vha);
3732 
3733 execute_fw_with_lr:
3734 	/* Load firmware sequences */
3735 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
3736 	if (rval == QLA_SUCCESS) {
3737 		ql_dbg(ql_dbg_init, vha, 0x00c9,
3738 		    "Verifying Checksum of loaded RISC code.\n");
3739 
3740 		rval = qla2x00_verify_checksum(vha, srisc_address);
3741 		if (rval == QLA_SUCCESS) {
3742 			/* Start firmware execution. */
3743 			ql_dbg(ql_dbg_init, vha, 0x00ca,
3744 			    "Starting firmware.\n");
3745 
3746 			if (ql2xexlogins)
3747 				ha->flags.exlogins_enabled = 1;
3748 
3749 			if (qla_is_exch_offld_enabled(vha))
3750 				ha->flags.exchoffld_enabled = 1;
3751 
3752 			rval = qla2x00_execute_fw(vha, srisc_address);
3753 			/* Retrieve firmware information. */
3754 			if (rval == QLA_SUCCESS) {
3755 				/* Enable BPM support? */
3756 				if (!done_once++ && qla24xx_detect_sfp(vha)) {
3757 					ql_dbg(ql_dbg_init, vha, 0x00ca,
3758 					    "Re-starting firmware -- BPM.\n");
3759 					/* Best-effort - re-init. */
3760 					ha->isp_ops->reset_chip(vha);
3761 					ha->isp_ops->chip_diag(vha);
3762 					goto execute_fw_with_lr;
3763 				}
3764 
3765 				if (IS_ZIO_THRESHOLD_CAPABLE(ha))
3766 					qla27xx_set_zio_threshold(vha,
3767 					    ha->last_zio_threshold);
3768 
3769 				rval = qla2x00_set_exlogins_buffer(vha);
3770 				if (rval != QLA_SUCCESS)
3771 					goto failed;
3772 
3773 				rval = qla2x00_set_exchoffld_buffer(vha);
3774 				if (rval != QLA_SUCCESS)
3775 					goto failed;
3776 
3777 enable_82xx_npiv:
3778 				fw_major_version = ha->fw_major_version;
3779 				if (IS_P3P_TYPE(ha))
3780 					qla82xx_check_md_needed(vha);
3781 				else
3782 					rval = qla2x00_get_fw_version(vha);
3783 				if (rval != QLA_SUCCESS)
3784 					goto failed;
3785 				ha->flags.npiv_supported = 0;
3786 				if (IS_QLA2XXX_MIDTYPE(ha) &&
3787 					 (ha->fw_attributes & BIT_2)) {
3788 					ha->flags.npiv_supported = 1;
3789 					if ((!ha->max_npiv_vports) ||
3790 					    ((ha->max_npiv_vports + 1) %
3791 					    MIN_MULTI_ID_FABRIC))
3792 						ha->max_npiv_vports =
3793 						    MIN_MULTI_ID_FABRIC - 1;
3794 				}
3795 				qla2x00_get_resource_cnts(vha);
3796 				qla_init_iocb_limit(vha);
3797 
3798 				/*
3799 				 * Allocate the array of outstanding commands
3800 				 * now that we know the firmware resources.
3801 				 */
3802 				rval = qla2x00_alloc_outstanding_cmds(ha,
3803 				    vha->req);
3804 				if (rval != QLA_SUCCESS)
3805 					goto failed;
3806 
3807 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
3808 					qla2x00_alloc_offload_mem(vha);
3809 
3810 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
3811 					qla2x00_alloc_fw_dump(vha);
3812 
3813 			} else {
3814 				goto failed;
3815 			}
3816 		} else {
3817 			ql_log(ql_log_fatal, vha, 0x00cd,
3818 			    "ISP Firmware failed checksum.\n");
3819 			goto failed;
3820 		}
3821 
3822 		/* Enable PUREX PASSTHRU */
3823 		if (ql2xrdpenable || ha->flags.scm_supported_f)
3824 			qla25xx_set_els_cmds_supported(vha);
3825 	} else
3826 		goto failed;
3827 
3828 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3829 		/* Enable proper parity. */
3830 		spin_lock_irqsave(&ha->hardware_lock, flags);
3831 		if (IS_QLA2300(ha))
3832 			/* SRAM parity */
3833 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
3834 		else
3835 			/* SRAM, Instruction RAM and GP RAM parity */
3836 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
3837 		rd_reg_word(&reg->hccr);
3838 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3839 	}
3840 
3841 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
3842 		ha->flags.fac_supported = 1;
3843 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
3844 		uint32_t size;
3845 
3846 		rval = qla81xx_fac_get_sector_size(vha, &size);
3847 		if (rval == QLA_SUCCESS) {
3848 			ha->flags.fac_supported = 1;
3849 			ha->fdt_block_size = size << 2;
3850 		} else {
3851 			ql_log(ql_log_warn, vha, 0x00ce,
3852 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
3853 			    ha->fw_major_version, ha->fw_minor_version,
3854 			    ha->fw_subminor_version);
3855 
3856 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3857 			    IS_QLA28XX(ha)) {
3858 				ha->flags.fac_supported = 0;
3859 				rval = QLA_SUCCESS;
3860 			}
3861 		}
3862 	}
3863 failed:
3864 	if (rval) {
3865 		ql_log(ql_log_fatal, vha, 0x00cf,
3866 		    "Setup chip ****FAILED****.\n");
3867 	}
3868 
3869 	return (rval);
3870 }
3871 
3872 /**
3873  * qla2x00_init_response_q_entries() - Initializes response queue entries.
3874  * @rsp: response queue
3875  *
3876  * Beginning of request ring has initialization control block already built
3877  * by nvram config routine.
3878  *
3879  * Returns 0 on success.
3880  */
3881 void
3882 qla2x00_init_response_q_entries(struct rsp_que *rsp)
3883 {
3884 	uint16_t cnt;
3885 	response_t *pkt;
3886 
3887 	rsp->ring_ptr = rsp->ring;
3888 	rsp->ring_index    = 0;
3889 	rsp->status_srb = NULL;
3890 	pkt = rsp->ring_ptr;
3891 	for (cnt = 0; cnt < rsp->length; cnt++) {
3892 		pkt->signature = RESPONSE_PROCESSED;
3893 		pkt++;
3894 	}
3895 }
3896 
3897 /**
3898  * qla2x00_update_fw_options() - Read and process firmware options.
3899  * @vha: HA context
3900  *
3901  * Returns 0 on success.
3902  */
3903 void
3904 qla2x00_update_fw_options(scsi_qla_host_t *vha)
3905 {
3906 	uint16_t swing, emphasis, tx_sens, rx_sens;
3907 	struct qla_hw_data *ha = vha->hw;
3908 
3909 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
3910 	qla2x00_get_fw_options(vha, ha->fw_options);
3911 
3912 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
3913 		return;
3914 
3915 	/* Serial Link options. */
3916 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
3917 	    "Serial link options.\n");
3918 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
3919 	    ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
3920 
3921 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
3922 	if (ha->fw_seriallink_options[3] & BIT_2) {
3923 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
3924 
3925 		/*  1G settings */
3926 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
3927 		emphasis = (ha->fw_seriallink_options[2] &
3928 		    (BIT_4 | BIT_3)) >> 3;
3929 		tx_sens = ha->fw_seriallink_options[0] &
3930 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3931 		rx_sens = (ha->fw_seriallink_options[0] &
3932 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3933 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
3934 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3935 			if (rx_sens == 0x0)
3936 				rx_sens = 0x3;
3937 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
3938 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3939 			ha->fw_options[10] |= BIT_5 |
3940 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3941 			    (tx_sens & (BIT_1 | BIT_0));
3942 
3943 		/*  2G settings */
3944 		swing = (ha->fw_seriallink_options[2] &
3945 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
3946 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
3947 		tx_sens = ha->fw_seriallink_options[1] &
3948 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
3949 		rx_sens = (ha->fw_seriallink_options[1] &
3950 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
3951 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
3952 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3953 			if (rx_sens == 0x0)
3954 				rx_sens = 0x3;
3955 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
3956 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
3957 			ha->fw_options[11] |= BIT_5 |
3958 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
3959 			    (tx_sens & (BIT_1 | BIT_0));
3960 	}
3961 
3962 	/* FCP2 options. */
3963 	/*  Return command IOCBs without waiting for an ABTS to complete. */
3964 	ha->fw_options[3] |= BIT_13;
3965 
3966 	/* LED scheme. */
3967 	if (ha->flags.enable_led_scheme)
3968 		ha->fw_options[2] |= BIT_12;
3969 
3970 	/* Detect ISP6312. */
3971 	if (IS_QLA6312(ha))
3972 		ha->fw_options[2] |= BIT_13;
3973 
3974 	/* Set Retry FLOGI in case of P2P connection */
3975 	if (ha->operating_mode == P2P) {
3976 		ha->fw_options[2] |= BIT_3;
3977 		ql_dbg(ql_dbg_disc, vha, 0x2100,
3978 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
3979 			__func__, ha->fw_options[2]);
3980 	}
3981 
3982 	/* Update firmware options. */
3983 	qla2x00_set_fw_options(vha, ha->fw_options);
3984 }
3985 
3986 void
3987 qla24xx_update_fw_options(scsi_qla_host_t *vha)
3988 {
3989 	int rval;
3990 	struct qla_hw_data *ha = vha->hw;
3991 
3992 	if (IS_P3P_TYPE(ha))
3993 		return;
3994 
3995 	/*  Hold status IOCBs until ABTS response received. */
3996 	if (ql2xfwholdabts)
3997 		ha->fw_options[3] |= BIT_12;
3998 
3999 	/* Set Retry FLOGI in case of P2P connection */
4000 	if (ha->operating_mode == P2P) {
4001 		ha->fw_options[2] |= BIT_3;
4002 		ql_dbg(ql_dbg_disc, vha, 0x2101,
4003 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
4004 			__func__, ha->fw_options[2]);
4005 	}
4006 
4007 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
4008 	if (ql2xmvasynctoatio &&
4009 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
4010 		if (qla_tgt_mode_enabled(vha) ||
4011 		    qla_dual_mode_enabled(vha))
4012 			ha->fw_options[2] |= BIT_11;
4013 		else
4014 			ha->fw_options[2] &= ~BIT_11;
4015 	}
4016 
4017 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4018 	    IS_QLA28XX(ha)) {
4019 		/*
4020 		 * Tell FW to track each exchange to prevent
4021 		 * driver from using stale exchange.
4022 		 */
4023 		if (qla_tgt_mode_enabled(vha) ||
4024 		    qla_dual_mode_enabled(vha))
4025 			ha->fw_options[2] |= BIT_4;
4026 		else
4027 			ha->fw_options[2] &= ~BIT_4;
4028 
4029 		/* Reserve 1/2 of emergency exchanges for ELS.*/
4030 		if (qla2xuseresexchforels)
4031 			ha->fw_options[2] |= BIT_8;
4032 		else
4033 			ha->fw_options[2] &= ~BIT_8;
4034 	}
4035 
4036 	if (ql2xrdpenable || ha->flags.scm_supported_f)
4037 		ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
4038 
4039 	/* Enable Async 8130/8131 events -- transceiver insertion/removal */
4040 	if (IS_BPM_RANGE_CAPABLE(ha))
4041 		ha->fw_options[3] |= BIT_10;
4042 
4043 	ql_dbg(ql_dbg_init, vha, 0x00e8,
4044 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
4045 	    __func__, ha->fw_options[1], ha->fw_options[2],
4046 	    ha->fw_options[3], vha->host->active_mode);
4047 
4048 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
4049 		qla2x00_set_fw_options(vha, ha->fw_options);
4050 
4051 	/* Update Serial Link options. */
4052 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
4053 		return;
4054 
4055 	rval = qla2x00_set_serdes_params(vha,
4056 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
4057 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
4058 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
4059 	if (rval != QLA_SUCCESS) {
4060 		ql_log(ql_log_warn, vha, 0x0104,
4061 		    "Unable to update Serial Link options (%x).\n", rval);
4062 	}
4063 }
4064 
4065 void
4066 qla2x00_config_rings(struct scsi_qla_host *vha)
4067 {
4068 	struct qla_hw_data *ha = vha->hw;
4069 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4070 	struct req_que *req = ha->req_q_map[0];
4071 	struct rsp_que *rsp = ha->rsp_q_map[0];
4072 
4073 	/* Setup ring parameters in initialization control block. */
4074 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
4075 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
4076 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
4077 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
4078 	put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
4079 	put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
4080 
4081 	wrt_reg_word(ISP_REQ_Q_IN(ha, reg), 0);
4082 	wrt_reg_word(ISP_REQ_Q_OUT(ha, reg), 0);
4083 	wrt_reg_word(ISP_RSP_Q_IN(ha, reg), 0);
4084 	wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), 0);
4085 	rd_reg_word(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
4086 }
4087 
4088 void
4089 qla24xx_config_rings(struct scsi_qla_host *vha)
4090 {
4091 	struct qla_hw_data *ha = vha->hw;
4092 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
4093 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
4094 	struct qla_msix_entry *msix;
4095 	struct init_cb_24xx *icb;
4096 	uint16_t rid = 0;
4097 	struct req_que *req = ha->req_q_map[0];
4098 	struct rsp_que *rsp = ha->rsp_q_map[0];
4099 
4100 	/* Setup ring parameters in initialization control block. */
4101 	icb = (struct init_cb_24xx *)ha->init_cb;
4102 	icb->request_q_outpointer = cpu_to_le16(0);
4103 	icb->response_q_inpointer = cpu_to_le16(0);
4104 	icb->request_q_length = cpu_to_le16(req->length);
4105 	icb->response_q_length = cpu_to_le16(rsp->length);
4106 	put_unaligned_le64(req->dma, &icb->request_q_address);
4107 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
4108 
4109 	/* Setup ATIO queue dma pointers for target mode */
4110 	icb->atio_q_inpointer = cpu_to_le16(0);
4111 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
4112 	put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
4113 
4114 	if (IS_SHADOW_REG_CAPABLE(ha))
4115 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
4116 
4117 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4118 	    IS_QLA28XX(ha)) {
4119 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
4120 		icb->rid = cpu_to_le16(rid);
4121 		if (ha->flags.msix_enabled) {
4122 			msix = &ha->msix_entries[1];
4123 			ql_dbg(ql_dbg_init, vha, 0x0019,
4124 			    "Registering vector 0x%x for base que.\n",
4125 			    msix->entry);
4126 			icb->msix = cpu_to_le16(msix->entry);
4127 		}
4128 		/* Use alternate PCI bus number */
4129 		if (MSB(rid))
4130 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
4131 		/* Use alternate PCI devfn */
4132 		if (LSB(rid))
4133 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
4134 
4135 		/* Use Disable MSIX Handshake mode for capable adapters */
4136 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
4137 		    (ha->flags.msix_enabled)) {
4138 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
4139 			ha->flags.disable_msix_handshake = 1;
4140 			ql_dbg(ql_dbg_init, vha, 0x00fe,
4141 			    "MSIX Handshake Disable Mode turned on.\n");
4142 		} else {
4143 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
4144 		}
4145 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
4146 
4147 		wrt_reg_dword(&reg->isp25mq.req_q_in, 0);
4148 		wrt_reg_dword(&reg->isp25mq.req_q_out, 0);
4149 		wrt_reg_dword(&reg->isp25mq.rsp_q_in, 0);
4150 		wrt_reg_dword(&reg->isp25mq.rsp_q_out, 0);
4151 	} else {
4152 		wrt_reg_dword(&reg->isp24.req_q_in, 0);
4153 		wrt_reg_dword(&reg->isp24.req_q_out, 0);
4154 		wrt_reg_dword(&reg->isp24.rsp_q_in, 0);
4155 		wrt_reg_dword(&reg->isp24.rsp_q_out, 0);
4156 	}
4157 
4158 	qlt_24xx_config_rings(vha);
4159 
4160 	/* If the user has configured the speed, set it here */
4161 	if (ha->set_data_rate) {
4162 		ql_dbg(ql_dbg_init, vha, 0x00fd,
4163 		    "Speed set by user : %s Gbps \n",
4164 		    qla2x00_get_link_speed_str(ha, ha->set_data_rate));
4165 		icb->firmware_options_3 = cpu_to_le32(ha->set_data_rate << 13);
4166 	}
4167 
4168 	/* PCI posting */
4169 	rd_reg_word(&ioreg->hccr);
4170 }
4171 
4172 /**
4173  * qla2x00_init_rings() - Initializes firmware.
4174  * @vha: HA context
4175  *
4176  * Beginning of request ring has initialization control block already built
4177  * by nvram config routine.
4178  *
4179  * Returns 0 on success.
4180  */
4181 int
4182 qla2x00_init_rings(scsi_qla_host_t *vha)
4183 {
4184 	int	rval;
4185 	unsigned long flags = 0;
4186 	int cnt, que;
4187 	struct qla_hw_data *ha = vha->hw;
4188 	struct req_que *req;
4189 	struct rsp_que *rsp;
4190 	struct mid_init_cb_24xx *mid_init_cb =
4191 	    (struct mid_init_cb_24xx *) ha->init_cb;
4192 
4193 	spin_lock_irqsave(&ha->hardware_lock, flags);
4194 
4195 	/* Clear outstanding commands array. */
4196 	for (que = 0; que < ha->max_req_queues; que++) {
4197 		req = ha->req_q_map[que];
4198 		if (!req || !test_bit(que, ha->req_qid_map))
4199 			continue;
4200 		req->out_ptr = (uint16_t *)(req->ring + req->length);
4201 		*req->out_ptr = 0;
4202 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
4203 			req->outstanding_cmds[cnt] = NULL;
4204 
4205 		req->current_outstanding_cmd = 1;
4206 
4207 		/* Initialize firmware. */
4208 		req->ring_ptr  = req->ring;
4209 		req->ring_index    = 0;
4210 		req->cnt      = req->length;
4211 	}
4212 
4213 	for (que = 0; que < ha->max_rsp_queues; que++) {
4214 		rsp = ha->rsp_q_map[que];
4215 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
4216 			continue;
4217 		rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
4218 		*rsp->in_ptr = 0;
4219 		/* Initialize response queue entries */
4220 		if (IS_QLAFX00(ha))
4221 			qlafx00_init_response_q_entries(rsp);
4222 		else
4223 			qla2x00_init_response_q_entries(rsp);
4224 	}
4225 
4226 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
4227 	ha->tgt.atio_ring_index = 0;
4228 	/* Initialize ATIO queue entries */
4229 	qlt_init_atio_q_entries(vha);
4230 
4231 	ha->isp_ops->config_rings(vha);
4232 
4233 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4234 
4235 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
4236 
4237 	if (IS_QLAFX00(ha)) {
4238 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
4239 		goto next_check;
4240 	}
4241 
4242 	/* Update any ISP specific firmware options before initialization. */
4243 	ha->isp_ops->update_fw_options(vha);
4244 
4245 	if (ha->flags.npiv_supported) {
4246 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
4247 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
4248 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
4249 	}
4250 
4251 	if (IS_FWI2_CAPABLE(ha)) {
4252 		mid_init_cb->options = cpu_to_le16(BIT_1);
4253 		mid_init_cb->init_cb.execution_throttle =
4254 		    cpu_to_le16(ha->cur_fw_xcb_count);
4255 		ha->flags.dport_enabled =
4256 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4257 			 BIT_7) != 0;
4258 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
4259 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
4260 		/* FA-WWPN Status */
4261 		ha->flags.fawwpn_enabled =
4262 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4263 			 BIT_6) != 0;
4264 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
4265 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
4266 	}
4267 
4268 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
4269 next_check:
4270 	if (rval) {
4271 		ql_log(ql_log_fatal, vha, 0x00d2,
4272 		    "Init Firmware **** FAILED ****.\n");
4273 	} else {
4274 		ql_dbg(ql_dbg_init, vha, 0x00d3,
4275 		    "Init Firmware -- success.\n");
4276 		QLA_FW_STARTED(ha);
4277 		vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
4278 	}
4279 
4280 	return (rval);
4281 }
4282 
4283 /**
4284  * qla2x00_fw_ready() - Waits for firmware ready.
4285  * @vha: HA context
4286  *
4287  * Returns 0 on success.
4288  */
4289 static int
4290 qla2x00_fw_ready(scsi_qla_host_t *vha)
4291 {
4292 	int		rval;
4293 	unsigned long	wtime, mtime, cs84xx_time;
4294 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
4295 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
4296 	uint16_t	state[6];
4297 	struct qla_hw_data *ha = vha->hw;
4298 
4299 	if (IS_QLAFX00(vha->hw))
4300 		return qlafx00_fw_ready(vha);
4301 
4302 	rval = QLA_SUCCESS;
4303 
4304 	/* Time to wait for loop down */
4305 	if (IS_P3P_TYPE(ha))
4306 		min_wait = 30;
4307 	else
4308 		min_wait = 20;
4309 
4310 	/*
4311 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
4312 	 * our own processing.
4313 	 */
4314 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
4315 		wait_time = min_wait;
4316 	}
4317 
4318 	/* Min wait time if loop down */
4319 	mtime = jiffies + (min_wait * HZ);
4320 
4321 	/* wait time before firmware ready */
4322 	wtime = jiffies + (wait_time * HZ);
4323 
4324 	/* Wait for ISP to finish LIP */
4325 	if (!vha->flags.init_done)
4326 		ql_log(ql_log_info, vha, 0x801e,
4327 		    "Waiting for LIP to complete.\n");
4328 
4329 	do {
4330 		memset(state, -1, sizeof(state));
4331 		rval = qla2x00_get_firmware_state(vha, state);
4332 		if (rval == QLA_SUCCESS) {
4333 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
4334 				vha->device_flags &= ~DFLG_NO_CABLE;
4335 			}
4336 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
4337 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
4338 				    "fw_state=%x 84xx=%x.\n", state[0],
4339 				    state[2]);
4340 				if ((state[2] & FSTATE_LOGGED_IN) &&
4341 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
4342 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
4343 					    "Sending verify iocb.\n");
4344 
4345 					cs84xx_time = jiffies;
4346 					rval = qla84xx_init_chip(vha);
4347 					if (rval != QLA_SUCCESS) {
4348 						ql_log(ql_log_warn,
4349 						    vha, 0x8007,
4350 						    "Init chip failed.\n");
4351 						break;
4352 					}
4353 
4354 					/* Add time taken to initialize. */
4355 					cs84xx_time = jiffies - cs84xx_time;
4356 					wtime += cs84xx_time;
4357 					mtime += cs84xx_time;
4358 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
4359 					    "Increasing wait time by %ld. "
4360 					    "New time %ld.\n", cs84xx_time,
4361 					    wtime);
4362 				}
4363 			} else if (state[0] == FSTATE_READY) {
4364 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
4365 				    "F/W Ready - OK.\n");
4366 
4367 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
4368 				    &ha->login_timeout, &ha->r_a_tov);
4369 
4370 				rval = QLA_SUCCESS;
4371 				break;
4372 			}
4373 
4374 			rval = QLA_FUNCTION_FAILED;
4375 
4376 			if (atomic_read(&vha->loop_down_timer) &&
4377 			    state[0] != FSTATE_READY) {
4378 				/* Loop down. Timeout on min_wait for states
4379 				 * other than Wait for Login.
4380 				 */
4381 				if (time_after_eq(jiffies, mtime)) {
4382 					ql_log(ql_log_info, vha, 0x8038,
4383 					    "Cable is unplugged...\n");
4384 
4385 					vha->device_flags |= DFLG_NO_CABLE;
4386 					break;
4387 				}
4388 			}
4389 		} else {
4390 			/* Mailbox cmd failed. Timeout on min_wait. */
4391 			if (time_after_eq(jiffies, mtime) ||
4392 				ha->flags.isp82xx_fw_hung)
4393 				break;
4394 		}
4395 
4396 		if (time_after_eq(jiffies, wtime))
4397 			break;
4398 
4399 		/* Delay for a while */
4400 		msleep(500);
4401 	} while (1);
4402 
4403 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
4404 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
4405 	    state[1], state[2], state[3], state[4], state[5], jiffies);
4406 
4407 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
4408 		ql_log(ql_log_warn, vha, 0x803b,
4409 		    "Firmware ready **** FAILED ****.\n");
4410 	}
4411 
4412 	return (rval);
4413 }
4414 
4415 /*
4416 *  qla2x00_configure_hba
4417 *      Setup adapter context.
4418 *
4419 * Input:
4420 *      ha = adapter state pointer.
4421 *
4422 * Returns:
4423 *      0 = success
4424 *
4425 * Context:
4426 *      Kernel context.
4427 */
4428 static int
4429 qla2x00_configure_hba(scsi_qla_host_t *vha)
4430 {
4431 	int       rval;
4432 	uint16_t      loop_id;
4433 	uint16_t      topo;
4434 	uint16_t      sw_cap;
4435 	uint8_t       al_pa;
4436 	uint8_t       area;
4437 	uint8_t       domain;
4438 	char		connect_type[22];
4439 	struct qla_hw_data *ha = vha->hw;
4440 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4441 	port_id_t id;
4442 	unsigned long flags;
4443 
4444 	/* Get host addresses. */
4445 	rval = qla2x00_get_adapter_id(vha,
4446 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4447 	if (rval != QLA_SUCCESS) {
4448 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4449 		    IS_CNA_CAPABLE(ha) ||
4450 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4451 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4452 			    "Loop is in a transition state.\n");
4453 		} else {
4454 			ql_log(ql_log_warn, vha, 0x2009,
4455 			    "Unable to get host loop ID.\n");
4456 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4457 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4458 				ql_log(ql_log_warn, vha, 0x1151,
4459 				    "Doing link init.\n");
4460 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4461 					return rval;
4462 			}
4463 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4464 		}
4465 		return (rval);
4466 	}
4467 
4468 	if (topo == 4) {
4469 		ql_log(ql_log_info, vha, 0x200a,
4470 		    "Cannot get topology - retrying.\n");
4471 		return (QLA_FUNCTION_FAILED);
4472 	}
4473 
4474 	vha->loop_id = loop_id;
4475 
4476 	/* initialize */
4477 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4478 	ha->operating_mode = LOOP;
4479 	ha->switch_cap = 0;
4480 
4481 	switch (topo) {
4482 	case 0:
4483 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4484 		ha->current_topology = ISP_CFG_NL;
4485 		strcpy(connect_type, "(Loop)");
4486 		break;
4487 
4488 	case 1:
4489 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4490 		ha->switch_cap = sw_cap;
4491 		ha->current_topology = ISP_CFG_FL;
4492 		strcpy(connect_type, "(FL_Port)");
4493 		break;
4494 
4495 	case 2:
4496 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4497 		ha->operating_mode = P2P;
4498 		ha->current_topology = ISP_CFG_N;
4499 		strcpy(connect_type, "(N_Port-to-N_Port)");
4500 		break;
4501 
4502 	case 3:
4503 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4504 		ha->switch_cap = sw_cap;
4505 		ha->operating_mode = P2P;
4506 		ha->current_topology = ISP_CFG_F;
4507 		strcpy(connect_type, "(F_Port)");
4508 		break;
4509 
4510 	default:
4511 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4512 		    "HBA in unknown topology %x, using NL.\n", topo);
4513 		ha->current_topology = ISP_CFG_NL;
4514 		strcpy(connect_type, "(Loop)");
4515 		break;
4516 	}
4517 
4518 	/* Save Host port and loop ID. */
4519 	/* byte order - Big Endian */
4520 	id.b.domain = domain;
4521 	id.b.area = area;
4522 	id.b.al_pa = al_pa;
4523 	id.b.rsvd_1 = 0;
4524 	spin_lock_irqsave(&ha->hardware_lock, flags);
4525 	if (!(topo == 2 && ha->flags.n2n_bigger))
4526 		qlt_update_host_map(vha, id);
4527 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4528 
4529 	if (!vha->flags.init_done)
4530 		ql_log(ql_log_info, vha, 0x2010,
4531 		    "Topology - %s, Host Loop address 0x%x.\n",
4532 		    connect_type, vha->loop_id);
4533 
4534 	return(rval);
4535 }
4536 
4537 inline void
4538 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4539 		       const char *def)
4540 {
4541 	char *st, *en;
4542 	uint16_t index;
4543 	uint64_t zero[2] = { 0 };
4544 	struct qla_hw_data *ha = vha->hw;
4545 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4546 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4547 
4548 	if (len > sizeof(zero))
4549 		len = sizeof(zero);
4550 	if (memcmp(model, &zero, len) != 0) {
4551 		memcpy(ha->model_number, model, len);
4552 		st = en = ha->model_number;
4553 		en += len - 1;
4554 		while (en > st) {
4555 			if (*en != 0x20 && *en != 0x00)
4556 				break;
4557 			*en-- = '\0';
4558 		}
4559 
4560 		index = (ha->pdev->subsystem_device & 0xff);
4561 		if (use_tbl &&
4562 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4563 		    index < QLA_MODEL_NAMES)
4564 			strlcpy(ha->model_desc,
4565 			    qla2x00_model_name[index * 2 + 1],
4566 			    sizeof(ha->model_desc));
4567 	} else {
4568 		index = (ha->pdev->subsystem_device & 0xff);
4569 		if (use_tbl &&
4570 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4571 		    index < QLA_MODEL_NAMES) {
4572 			strlcpy(ha->model_number,
4573 				qla2x00_model_name[index * 2],
4574 				sizeof(ha->model_number));
4575 			strlcpy(ha->model_desc,
4576 			    qla2x00_model_name[index * 2 + 1],
4577 			    sizeof(ha->model_desc));
4578 		} else {
4579 			strlcpy(ha->model_number, def,
4580 				sizeof(ha->model_number));
4581 		}
4582 	}
4583 	if (IS_FWI2_CAPABLE(ha))
4584 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4585 		    sizeof(ha->model_desc));
4586 }
4587 
4588 /* On sparc systems, obtain port and node WWN from firmware
4589  * properties.
4590  */
4591 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4592 {
4593 #ifdef CONFIG_SPARC
4594 	struct qla_hw_data *ha = vha->hw;
4595 	struct pci_dev *pdev = ha->pdev;
4596 	struct device_node *dp = pci_device_to_OF_node(pdev);
4597 	const u8 *val;
4598 	int len;
4599 
4600 	val = of_get_property(dp, "port-wwn", &len);
4601 	if (val && len >= WWN_SIZE)
4602 		memcpy(nv->port_name, val, WWN_SIZE);
4603 
4604 	val = of_get_property(dp, "node-wwn", &len);
4605 	if (val && len >= WWN_SIZE)
4606 		memcpy(nv->node_name, val, WWN_SIZE);
4607 #endif
4608 }
4609 
4610 /*
4611 * NVRAM configuration for ISP 2xxx
4612 *
4613 * Input:
4614 *      ha                = adapter block pointer.
4615 *
4616 * Output:
4617 *      initialization control block in response_ring
4618 *      host adapters parameters in host adapter block
4619 *
4620 * Returns:
4621 *      0 = success.
4622 */
4623 int
4624 qla2x00_nvram_config(scsi_qla_host_t *vha)
4625 {
4626 	int             rval;
4627 	uint8_t         chksum = 0;
4628 	uint16_t        cnt;
4629 	uint8_t         *dptr1, *dptr2;
4630 	struct qla_hw_data *ha = vha->hw;
4631 	init_cb_t       *icb = ha->init_cb;
4632 	nvram_t         *nv = ha->nvram;
4633 	uint8_t         *ptr = ha->nvram;
4634 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4635 
4636 	rval = QLA_SUCCESS;
4637 
4638 	/* Determine NVRAM starting address. */
4639 	ha->nvram_size = sizeof(*nv);
4640 	ha->nvram_base = 0;
4641 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4642 		if ((rd_reg_word(&reg->ctrl_status) >> 14) == 1)
4643 			ha->nvram_base = 0x80;
4644 
4645 	/* Get NVRAM data and calculate checksum. */
4646 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4647 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4648 		chksum += *ptr++;
4649 
4650 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4651 	    "Contents of NVRAM.\n");
4652 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4653 	    nv, ha->nvram_size);
4654 
4655 	/* Bad NVRAM data, set defaults parameters. */
4656 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
4657 	    nv->nvram_version < 1) {
4658 		/* Reset NVRAM data. */
4659 		ql_log(ql_log_warn, vha, 0x0064,
4660 		    "Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
4661 		    chksum, nv->id, nv->nvram_version);
4662 		ql_log(ql_log_warn, vha, 0x0065,
4663 		    "Falling back to "
4664 		    "functioning (yet invalid -- WWPN) defaults.\n");
4665 
4666 		/*
4667 		 * Set default initialization control block.
4668 		 */
4669 		memset(nv, 0, ha->nvram_size);
4670 		nv->parameter_block_version = ICB_VERSION;
4671 
4672 		if (IS_QLA23XX(ha)) {
4673 			nv->firmware_options[0] = BIT_2 | BIT_1;
4674 			nv->firmware_options[1] = BIT_7 | BIT_5;
4675 			nv->add_firmware_options[0] = BIT_5;
4676 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4677 			nv->frame_payload_size = cpu_to_le16(2048);
4678 			nv->special_options[1] = BIT_7;
4679 		} else if (IS_QLA2200(ha)) {
4680 			nv->firmware_options[0] = BIT_2 | BIT_1;
4681 			nv->firmware_options[1] = BIT_7 | BIT_5;
4682 			nv->add_firmware_options[0] = BIT_5;
4683 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4684 			nv->frame_payload_size = cpu_to_le16(1024);
4685 		} else if (IS_QLA2100(ha)) {
4686 			nv->firmware_options[0] = BIT_3 | BIT_1;
4687 			nv->firmware_options[1] = BIT_5;
4688 			nv->frame_payload_size = cpu_to_le16(1024);
4689 		}
4690 
4691 		nv->max_iocb_allocation = cpu_to_le16(256);
4692 		nv->execution_throttle = cpu_to_le16(16);
4693 		nv->retry_count = 8;
4694 		nv->retry_delay = 1;
4695 
4696 		nv->port_name[0] = 33;
4697 		nv->port_name[3] = 224;
4698 		nv->port_name[4] = 139;
4699 
4700 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
4701 
4702 		nv->login_timeout = 4;
4703 
4704 		/*
4705 		 * Set default host adapter parameters
4706 		 */
4707 		nv->host_p[1] = BIT_2;
4708 		nv->reset_delay = 5;
4709 		nv->port_down_retry_count = 8;
4710 		nv->max_luns_per_target = cpu_to_le16(8);
4711 		nv->link_down_timeout = 60;
4712 
4713 		rval = 1;
4714 	}
4715 
4716 	/* Reset Initialization control block */
4717 	memset(icb, 0, ha->init_cb_size);
4718 
4719 	/*
4720 	 * Setup driver NVRAM options.
4721 	 */
4722 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
4723 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
4724 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
4725 	nv->firmware_options[1] &= ~BIT_4;
4726 
4727 	if (IS_QLA23XX(ha)) {
4728 		nv->firmware_options[0] |= BIT_2;
4729 		nv->firmware_options[0] &= ~BIT_3;
4730 		nv->special_options[0] &= ~BIT_6;
4731 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
4732 
4733 		if (IS_QLA2300(ha)) {
4734 			if (ha->fb_rev == FPM_2310) {
4735 				strcpy(ha->model_number, "QLA2310");
4736 			} else {
4737 				strcpy(ha->model_number, "QLA2300");
4738 			}
4739 		} else {
4740 			qla2x00_set_model_info(vha, nv->model_number,
4741 			    sizeof(nv->model_number), "QLA23xx");
4742 		}
4743 	} else if (IS_QLA2200(ha)) {
4744 		nv->firmware_options[0] |= BIT_2;
4745 		/*
4746 		 * 'Point-to-point preferred, else loop' is not a safe
4747 		 * connection mode setting.
4748 		 */
4749 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
4750 		    (BIT_5 | BIT_4)) {
4751 			/* Force 'loop preferred, else point-to-point'. */
4752 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
4753 			nv->add_firmware_options[0] |= BIT_5;
4754 		}
4755 		strcpy(ha->model_number, "QLA22xx");
4756 	} else /*if (IS_QLA2100(ha))*/ {
4757 		strcpy(ha->model_number, "QLA2100");
4758 	}
4759 
4760 	/*
4761 	 * Copy over NVRAM RISC parameter block to initialization control block.
4762 	 */
4763 	dptr1 = (uint8_t *)icb;
4764 	dptr2 = (uint8_t *)&nv->parameter_block_version;
4765 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
4766 	while (cnt--)
4767 		*dptr1++ = *dptr2++;
4768 
4769 	/* Copy 2nd half. */
4770 	dptr1 = (uint8_t *)icb->add_firmware_options;
4771 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
4772 	while (cnt--)
4773 		*dptr1++ = *dptr2++;
4774 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
4775 	/* Use alternate WWN? */
4776 	if (nv->host_p[1] & BIT_7) {
4777 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4778 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4779 	}
4780 
4781 	/* Prepare nodename */
4782 	if ((icb->firmware_options[1] & BIT_6) == 0) {
4783 		/*
4784 		 * Firmware will apply the following mask if the nodename was
4785 		 * not provided.
4786 		 */
4787 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4788 		icb->node_name[0] &= 0xF0;
4789 	}
4790 
4791 	/*
4792 	 * Set host adapter parameters.
4793 	 */
4794 
4795 	/*
4796 	 * BIT_7 in the host-parameters section allows for modification to
4797 	 * internal driver logging.
4798 	 */
4799 	if (nv->host_p[0] & BIT_7)
4800 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
4801 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
4802 	/* Always load RISC code on non ISP2[12]00 chips. */
4803 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
4804 		ha->flags.disable_risc_code_load = 0;
4805 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
4806 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
4807 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
4808 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
4809 	ha->flags.disable_serdes = 0;
4810 
4811 	ha->operating_mode =
4812 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
4813 
4814 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
4815 	    sizeof(ha->fw_seriallink_options));
4816 
4817 	/* save HBA serial number */
4818 	ha->serial0 = icb->port_name[5];
4819 	ha->serial1 = icb->port_name[6];
4820 	ha->serial2 = icb->port_name[7];
4821 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4822 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4823 
4824 	icb->execution_throttle = cpu_to_le16(0xFFFF);
4825 
4826 	ha->retry_count = nv->retry_count;
4827 
4828 	/* Set minimum login_timeout to 4 seconds. */
4829 	if (nv->login_timeout != ql2xlogintimeout)
4830 		nv->login_timeout = ql2xlogintimeout;
4831 	if (nv->login_timeout < 4)
4832 		nv->login_timeout = 4;
4833 	ha->login_timeout = nv->login_timeout;
4834 
4835 	/* Set minimum RATOV to 100 tenths of a second. */
4836 	ha->r_a_tov = 100;
4837 
4838 	ha->loop_reset_delay = nv->reset_delay;
4839 
4840 	/* Link Down Timeout = 0:
4841 	 *
4842 	 * 	When Port Down timer expires we will start returning
4843 	 *	I/O's to OS with "DID_NO_CONNECT".
4844 	 *
4845 	 * Link Down Timeout != 0:
4846 	 *
4847 	 *	 The driver waits for the link to come up after link down
4848 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
4849 	 */
4850 	if (nv->link_down_timeout == 0) {
4851 		ha->loop_down_abort_time =
4852 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4853 	} else {
4854 		ha->link_down_timeout =	 nv->link_down_timeout;
4855 		ha->loop_down_abort_time =
4856 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
4857 	}
4858 
4859 	/*
4860 	 * Need enough time to try and get the port back.
4861 	 */
4862 	ha->port_down_retry_count = nv->port_down_retry_count;
4863 	if (qlport_down_retry)
4864 		ha->port_down_retry_count = qlport_down_retry;
4865 	/* Set login_retry_count */
4866 	ha->login_retry_count  = nv->retry_count;
4867 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
4868 	    ha->port_down_retry_count > 3)
4869 		ha->login_retry_count = ha->port_down_retry_count;
4870 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4871 		ha->login_retry_count = ha->port_down_retry_count;
4872 	if (ql2xloginretrycount)
4873 		ha->login_retry_count = ql2xloginretrycount;
4874 
4875 	icb->lun_enables = cpu_to_le16(0);
4876 	icb->command_resource_count = 0;
4877 	icb->immediate_notify_resource_count = 0;
4878 	icb->timeout = cpu_to_le16(0);
4879 
4880 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
4881 		/* Enable RIO */
4882 		icb->firmware_options[0] &= ~BIT_3;
4883 		icb->add_firmware_options[0] &=
4884 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4885 		icb->add_firmware_options[0] |= BIT_2;
4886 		icb->response_accumulation_timer = 3;
4887 		icb->interrupt_delay_timer = 5;
4888 
4889 		vha->flags.process_response_queue = 1;
4890 	} else {
4891 		/* Enable ZIO. */
4892 		if (!vha->flags.init_done) {
4893 			ha->zio_mode = icb->add_firmware_options[0] &
4894 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4895 			ha->zio_timer = icb->interrupt_delay_timer ?
4896 			    icb->interrupt_delay_timer : 2;
4897 		}
4898 		icb->add_firmware_options[0] &=
4899 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
4900 		vha->flags.process_response_queue = 0;
4901 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
4902 			ha->zio_mode = QLA_ZIO_MODE_6;
4903 
4904 			ql_log(ql_log_info, vha, 0x0068,
4905 			    "ZIO mode %d enabled; timer delay (%d us).\n",
4906 			    ha->zio_mode, ha->zio_timer * 100);
4907 
4908 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
4909 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
4910 			vha->flags.process_response_queue = 1;
4911 		}
4912 	}
4913 
4914 	if (rval) {
4915 		ql_log(ql_log_warn, vha, 0x0069,
4916 		    "NVRAM configuration failed.\n");
4917 	}
4918 	return (rval);
4919 }
4920 
4921 static void
4922 qla2x00_rport_del(void *data)
4923 {
4924 	fc_port_t *fcport = data;
4925 	struct fc_rport *rport;
4926 	unsigned long flags;
4927 
4928 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
4929 	rport = fcport->drport ? fcport->drport : fcport->rport;
4930 	fcport->drport = NULL;
4931 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
4932 	if (rport) {
4933 		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
4934 		    "%s %8phN. rport %p roles %x\n",
4935 		    __func__, fcport->port_name, rport,
4936 		    rport->roles);
4937 
4938 		fc_remote_port_delete(rport);
4939 	}
4940 }
4941 
4942 void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
4943 {
4944 	int old_state;
4945 
4946 	old_state = atomic_read(&fcport->state);
4947 	atomic_set(&fcport->state, state);
4948 
4949 	/* Don't print state transitions during initial allocation of fcport */
4950 	if (old_state && old_state != state) {
4951 		ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
4952 		       "FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
4953 		       fcport->port_name, port_state_str[old_state],
4954 		       port_state_str[state], fcport->d_id.b.domain,
4955 		       fcport->d_id.b.area, fcport->d_id.b.al_pa);
4956 	}
4957 }
4958 
4959 /**
4960  * qla2x00_alloc_fcport() - Allocate a generic fcport.
4961  * @vha: HA context
4962  * @flags: allocation flags
4963  *
4964  * Returns a pointer to the allocated fcport, or NULL, if none available.
4965  */
4966 fc_port_t *
4967 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
4968 {
4969 	fc_port_t *fcport;
4970 
4971 	fcport = kzalloc(sizeof(fc_port_t), flags);
4972 	if (!fcport)
4973 		return NULL;
4974 
4975 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
4976 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
4977 		flags);
4978 	if (!fcport->ct_desc.ct_sns) {
4979 		ql_log(ql_log_warn, vha, 0xd049,
4980 		    "Failed to allocate ct_sns request.\n");
4981 		kfree(fcport);
4982 		return NULL;
4983 	}
4984 
4985 	/* Setup fcport template structure. */
4986 	fcport->vha = vha;
4987 	fcport->port_type = FCT_UNKNOWN;
4988 	fcport->loop_id = FC_NO_LOOP_ID;
4989 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
4990 	fcport->supported_classes = FC_COS_UNSPECIFIED;
4991 	fcport->fp_speed = PORT_SPEED_UNKNOWN;
4992 
4993 	fcport->disc_state = DSC_DELETED;
4994 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
4995 	fcport->deleted = QLA_SESS_DELETED;
4996 	fcport->login_retry = vha->hw->login_retry_count;
4997 	fcport->chip_reset = vha->hw->base_qpair->chip_reset;
4998 	fcport->logout_on_delete = 1;
4999 	fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
5000 	fcport->tgt_short_link_down_cnt = 0;
5001 	fcport->dev_loss_tmo = 0;
5002 
5003 	if (!fcport->ct_desc.ct_sns) {
5004 		ql_log(ql_log_warn, vha, 0xd049,
5005 		    "Failed to allocate ct_sns request.\n");
5006 		kfree(fcport);
5007 		return NULL;
5008 	}
5009 
5010 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
5011 	INIT_WORK(&fcport->free_work, qlt_free_session_done);
5012 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
5013 	INIT_LIST_HEAD(&fcport->gnl_entry);
5014 	INIT_LIST_HEAD(&fcport->list);
5015 
5016 	INIT_LIST_HEAD(&fcport->sess_cmd_list);
5017 	spin_lock_init(&fcport->sess_cmd_lock);
5018 
5019 	return fcport;
5020 }
5021 
5022 void
5023 qla2x00_free_fcport(fc_port_t *fcport)
5024 {
5025 	if (fcport->ct_desc.ct_sns) {
5026 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
5027 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
5028 			fcport->ct_desc.ct_sns_dma);
5029 
5030 		fcport->ct_desc.ct_sns = NULL;
5031 	}
5032 	list_del(&fcport->list);
5033 	qla2x00_clear_loop_id(fcport);
5034 	kfree(fcport);
5035 }
5036 
5037 static void qla_get_login_template(scsi_qla_host_t *vha)
5038 {
5039 	struct qla_hw_data *ha = vha->hw;
5040 	int rval;
5041 	u32 *bp, sz;
5042 	__be32 *q;
5043 
5044 	memset(ha->init_cb, 0, ha->init_cb_size);
5045 	sz = min_t(int, sizeof(struct fc_els_flogi), ha->init_cb_size);
5046 	rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma,
5047 					    ha->init_cb, sz);
5048 	if (rval != QLA_SUCCESS) {
5049 		ql_dbg(ql_dbg_init, vha, 0x00d1,
5050 		       "PLOGI ELS param read fail.\n");
5051 		return;
5052 	}
5053 	q = (__be32 *)&ha->plogi_els_payld.fl_csp;
5054 
5055 	bp = (uint32_t *)ha->init_cb;
5056 	cpu_to_be32_array(q, bp, sz / 4);
5057 	ha->flags.plogi_template_valid = 1;
5058 }
5059 
5060 /*
5061  * qla2x00_configure_loop
5062  *      Updates Fibre Channel Device Database with what is actually on loop.
5063  *
5064  * Input:
5065  *      ha                = adapter block pointer.
5066  *
5067  * Returns:
5068  *      0 = success.
5069  *      1 = error.
5070  *      2 = database was full and device was not configured.
5071  */
5072 static int
5073 qla2x00_configure_loop(scsi_qla_host_t *vha)
5074 {
5075 	int  rval;
5076 	unsigned long flags, save_flags;
5077 	struct qla_hw_data *ha = vha->hw;
5078 
5079 	rval = QLA_SUCCESS;
5080 
5081 	/* Get Initiator ID */
5082 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
5083 		rval = qla2x00_configure_hba(vha);
5084 		if (rval != QLA_SUCCESS) {
5085 			ql_dbg(ql_dbg_disc, vha, 0x2013,
5086 			    "Unable to configure HBA.\n");
5087 			return (rval);
5088 		}
5089 	}
5090 
5091 	save_flags = flags = vha->dpc_flags;
5092 	ql_dbg(ql_dbg_disc, vha, 0x2014,
5093 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
5094 
5095 	/*
5096 	 * If we have both an RSCN and PORT UPDATE pending then handle them
5097 	 * both at the same time.
5098 	 */
5099 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5100 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
5101 
5102 	qla2x00_get_data_rate(vha);
5103 	qla_get_login_template(vha);
5104 
5105 	/* Determine what we need to do */
5106 	if ((ha->current_topology == ISP_CFG_FL ||
5107 	    ha->current_topology == ISP_CFG_F) &&
5108 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
5109 
5110 		set_bit(RSCN_UPDATE, &flags);
5111 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
5112 
5113 	} else if (ha->current_topology == ISP_CFG_NL ||
5114 		   ha->current_topology == ISP_CFG_N) {
5115 		clear_bit(RSCN_UPDATE, &flags);
5116 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5117 	} else if (!vha->flags.online ||
5118 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
5119 		set_bit(RSCN_UPDATE, &flags);
5120 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5121 	}
5122 
5123 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
5124 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5125 			ql_dbg(ql_dbg_disc, vha, 0x2015,
5126 			    "Loop resync needed, failing.\n");
5127 			rval = QLA_FUNCTION_FAILED;
5128 		} else
5129 			rval = qla2x00_configure_local_loop(vha);
5130 	}
5131 
5132 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
5133 		if (LOOP_TRANSITION(vha)) {
5134 			ql_dbg(ql_dbg_disc, vha, 0x2099,
5135 			    "Needs RSCN update and loop transition.\n");
5136 			rval = QLA_FUNCTION_FAILED;
5137 		}
5138 		else
5139 			rval = qla2x00_configure_fabric(vha);
5140 	}
5141 
5142 	if (rval == QLA_SUCCESS) {
5143 		if (atomic_read(&vha->loop_down_timer) ||
5144 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5145 			rval = QLA_FUNCTION_FAILED;
5146 		} else {
5147 			atomic_set(&vha->loop_state, LOOP_READY);
5148 			ql_dbg(ql_dbg_disc, vha, 0x2069,
5149 			    "LOOP READY.\n");
5150 			ha->flags.fw_init_done = 1;
5151 
5152 			/*
5153 			 * Process any ATIO queue entries that came in
5154 			 * while we weren't online.
5155 			 */
5156 			if (qla_tgt_mode_enabled(vha) ||
5157 			    qla_dual_mode_enabled(vha)) {
5158 				spin_lock_irqsave(&ha->tgt.atio_lock, flags);
5159 				qlt_24xx_process_atio_queue(vha, 0);
5160 				spin_unlock_irqrestore(&ha->tgt.atio_lock,
5161 				    flags);
5162 			}
5163 		}
5164 	}
5165 
5166 	if (rval) {
5167 		ql_dbg(ql_dbg_disc, vha, 0x206a,
5168 		    "%s *** FAILED ***.\n", __func__);
5169 	} else {
5170 		ql_dbg(ql_dbg_disc, vha, 0x206b,
5171 		    "%s: exiting normally.\n", __func__);
5172 	}
5173 
5174 	/* Restore state if a resync event occurred during processing */
5175 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5176 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
5177 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5178 		if (test_bit(RSCN_UPDATE, &save_flags)) {
5179 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
5180 		}
5181 	}
5182 
5183 	return (rval);
5184 }
5185 
5186 static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha)
5187 {
5188 	unsigned long flags;
5189 	fc_port_t *fcport;
5190 
5191 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags))
5192 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5193 
5194 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5195 		if (fcport->n2n_flag) {
5196 			qla24xx_fcport_handle_login(vha, fcport);
5197 			return QLA_SUCCESS;
5198 		}
5199 	}
5200 
5201 	spin_lock_irqsave(&vha->work_lock, flags);
5202 	vha->scan.scan_retry++;
5203 	spin_unlock_irqrestore(&vha->work_lock, flags);
5204 
5205 	if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5206 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5207 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5208 	}
5209 	return QLA_FUNCTION_FAILED;
5210 }
5211 
5212 /*
5213  * qla2x00_configure_local_loop
5214  *	Updates Fibre Channel Device Database with local loop devices.
5215  *
5216  * Input:
5217  *	ha = adapter block pointer.
5218  *
5219  * Returns:
5220  *	0 = success.
5221  */
5222 static int
5223 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
5224 {
5225 	int		rval, rval2;
5226 	int		found_devs;
5227 	int		found;
5228 	fc_port_t	*fcport, *new_fcport;
5229 	uint16_t	index;
5230 	uint16_t	entries;
5231 	struct gid_list_info *gid;
5232 	uint16_t	loop_id;
5233 	uint8_t		domain, area, al_pa;
5234 	struct qla_hw_data *ha = vha->hw;
5235 	unsigned long flags;
5236 
5237 	/* Inititae N2N login. */
5238 	if (N2N_TOPO(ha))
5239 		return qla2x00_configure_n2n_loop(vha);
5240 
5241 	found_devs = 0;
5242 	new_fcport = NULL;
5243 	entries = MAX_FIBRE_DEVICES_LOOP;
5244 
5245 	/* Get list of logged in devices. */
5246 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
5247 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
5248 	    &entries);
5249 	if (rval != QLA_SUCCESS)
5250 		goto err;
5251 
5252 	ql_dbg(ql_dbg_disc, vha, 0x2011,
5253 	    "Entries in ID list (%d).\n", entries);
5254 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
5255 	    ha->gid_list, entries * sizeof(*ha->gid_list));
5256 
5257 	if (entries == 0) {
5258 		spin_lock_irqsave(&vha->work_lock, flags);
5259 		vha->scan.scan_retry++;
5260 		spin_unlock_irqrestore(&vha->work_lock, flags);
5261 
5262 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5263 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5264 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5265 		}
5266 	} else {
5267 		vha->scan.scan_retry = 0;
5268 	}
5269 
5270 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5271 		fcport->scan_state = QLA_FCPORT_SCAN;
5272 	}
5273 
5274 	/* Allocate temporary fcport for any new fcports discovered. */
5275 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5276 	if (new_fcport == NULL) {
5277 		ql_log(ql_log_warn, vha, 0x2012,
5278 		    "Memory allocation failed for fcport.\n");
5279 		rval = QLA_MEMORY_ALLOC_FAILED;
5280 		goto err;
5281 	}
5282 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5283 
5284 	/* Add devices to port list. */
5285 	gid = ha->gid_list;
5286 	for (index = 0; index < entries; index++) {
5287 		domain = gid->domain;
5288 		area = gid->area;
5289 		al_pa = gid->al_pa;
5290 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
5291 			loop_id = gid->loop_id_2100;
5292 		else
5293 			loop_id = le16_to_cpu(gid->loop_id);
5294 		gid = (void *)gid + ha->gid_list_info_size;
5295 
5296 		/* Bypass reserved domain fields. */
5297 		if ((domain & 0xf0) == 0xf0)
5298 			continue;
5299 
5300 		/* Bypass if not same domain and area of adapter. */
5301 		if (area && domain && ((area != vha->d_id.b.area) ||
5302 		    (domain != vha->d_id.b.domain)) &&
5303 		    (ha->current_topology == ISP_CFG_NL))
5304 			continue;
5305 
5306 
5307 		/* Bypass invalid local loop ID. */
5308 		if (loop_id > LAST_LOCAL_LOOP_ID)
5309 			continue;
5310 
5311 		memset(new_fcport->port_name, 0, WWN_SIZE);
5312 
5313 		/* Fill in member data. */
5314 		new_fcport->d_id.b.domain = domain;
5315 		new_fcport->d_id.b.area = area;
5316 		new_fcport->d_id.b.al_pa = al_pa;
5317 		new_fcport->loop_id = loop_id;
5318 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5319 
5320 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
5321 		if (rval2 != QLA_SUCCESS) {
5322 			ql_dbg(ql_dbg_disc, vha, 0x2097,
5323 			    "Failed to retrieve fcport information "
5324 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
5325 			    rval2, new_fcport->loop_id);
5326 			/* Skip retry if N2N */
5327 			if (ha->current_topology != ISP_CFG_N) {
5328 				ql_dbg(ql_dbg_disc, vha, 0x2105,
5329 				    "Scheduling resync.\n");
5330 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5331 				continue;
5332 			}
5333 		}
5334 
5335 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5336 		/* Check for matching device in port list. */
5337 		found = 0;
5338 		fcport = NULL;
5339 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5340 			if (memcmp(new_fcport->port_name, fcport->port_name,
5341 			    WWN_SIZE))
5342 				continue;
5343 
5344 			fcport->flags &= ~FCF_FABRIC_DEVICE;
5345 			fcport->loop_id = new_fcport->loop_id;
5346 			fcport->port_type = new_fcport->port_type;
5347 			fcport->d_id.b24 = new_fcport->d_id.b24;
5348 			memcpy(fcport->node_name, new_fcport->node_name,
5349 			    WWN_SIZE);
5350 			fcport->scan_state = QLA_FCPORT_FOUND;
5351 			found++;
5352 			break;
5353 		}
5354 
5355 		if (!found) {
5356 			/* New device, add to fcports list. */
5357 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
5358 
5359 			/* Allocate a new replacement fcport. */
5360 			fcport = new_fcport;
5361 
5362 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5363 
5364 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5365 
5366 			if (new_fcport == NULL) {
5367 				ql_log(ql_log_warn, vha, 0xd031,
5368 				    "Failed to allocate memory for fcport.\n");
5369 				rval = QLA_MEMORY_ALLOC_FAILED;
5370 				goto err;
5371 			}
5372 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5373 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5374 		}
5375 
5376 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5377 
5378 		/* Base iIDMA settings on HBA port speed. */
5379 		fcport->fp_speed = ha->link_data_rate;
5380 
5381 		found_devs++;
5382 	}
5383 
5384 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5385 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5386 			break;
5387 
5388 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5389 			if ((qla_dual_mode_enabled(vha) ||
5390 			    qla_ini_mode_enabled(vha)) &&
5391 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5392 				qla2x00_mark_device_lost(vha, fcport,
5393 					ql2xplogiabsentdevice);
5394 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5395 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5396 				    fcport->port_type != FCT_INITIATOR &&
5397 				    fcport->port_type != FCT_BROADCAST) {
5398 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5399 					    "%s %d %8phC post del sess\n",
5400 					    __func__, __LINE__,
5401 					    fcport->port_name);
5402 
5403 					qlt_schedule_sess_for_deletion(fcport);
5404 					continue;
5405 				}
5406 			}
5407 		}
5408 
5409 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5410 			qla24xx_fcport_handle_login(vha, fcport);
5411 	}
5412 
5413 	qla2x00_free_fcport(new_fcport);
5414 
5415 	return rval;
5416 
5417 err:
5418 	ql_dbg(ql_dbg_disc, vha, 0x2098,
5419 	       "Configure local loop error exit: rval=%x.\n", rval);
5420 	return rval;
5421 }
5422 
5423 static void
5424 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5425 {
5426 	int rval;
5427 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5428 	struct qla_hw_data *ha = vha->hw;
5429 
5430 	if (!IS_IIDMA_CAPABLE(ha))
5431 		return;
5432 
5433 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5434 		return;
5435 
5436 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5437 	    fcport->fp_speed > ha->link_data_rate ||
5438 	    !ha->flags.gpsc_supported)
5439 		return;
5440 
5441 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5442 	    mb);
5443 	if (rval != QLA_SUCCESS) {
5444 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5445 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5446 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5447 	} else {
5448 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5449 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5450 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5451 		    fcport->fp_speed, fcport->port_name);
5452 	}
5453 }
5454 
5455 void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5456 {
5457 	qla2x00_iidma_fcport(vha, fcport);
5458 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5459 }
5460 
5461 int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5462 {
5463 	struct qla_work_evt *e;
5464 
5465 	e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
5466 	if (!e)
5467 		return QLA_FUNCTION_FAILED;
5468 
5469 	e->u.fcport.fcport = fcport;
5470 	return qla2x00_post_work(vha, e);
5471 }
5472 
5473 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5474 static void
5475 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5476 {
5477 	struct fc_rport_identifiers rport_ids;
5478 	struct fc_rport *rport;
5479 	unsigned long flags;
5480 
5481 	if (atomic_read(&fcport->state) == FCS_ONLINE)
5482 		return;
5483 
5484 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5485 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5486 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5487 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5488 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5489 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5490 	if (!rport) {
5491 		ql_log(ql_log_warn, vha, 0x2006,
5492 		    "Unable to allocate fc remote port.\n");
5493 		return;
5494 	}
5495 
5496 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5497 	*((fc_port_t **)rport->dd_data) = fcport;
5498 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5499 	fcport->dev_loss_tmo = rport->dev_loss_tmo;
5500 
5501 	rport->supported_classes = fcport->supported_classes;
5502 
5503 	rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
5504 	if (fcport->port_type == FCT_INITIATOR)
5505 		rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
5506 	if (fcport->port_type == FCT_TARGET)
5507 		rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
5508 	if (fcport->port_type & FCT_NVME_INITIATOR)
5509 		rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
5510 	if (fcport->port_type & FCT_NVME_TARGET)
5511 		rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
5512 	if (fcport->port_type & FCT_NVME_DISCOVERY)
5513 		rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
5514 
5515 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5516 	    "%s %8phN. rport %p is %s mode\n",
5517 	    __func__, fcport->port_name, rport,
5518 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
5519 	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
5520 
5521 	fc_remote_port_rolechg(rport, rport_ids.roles);
5522 }
5523 
5524 /*
5525  * qla2x00_update_fcport
5526  *	Updates device on list.
5527  *
5528  * Input:
5529  *	ha = adapter block pointer.
5530  *	fcport = port structure pointer.
5531  *
5532  * Return:
5533  *	0  - Success
5534  *  BIT_0 - error
5535  *
5536  * Context:
5537  *	Kernel context.
5538  */
5539 void
5540 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5541 {
5542 	if (IS_SW_RESV_ADDR(fcport->d_id))
5543 		return;
5544 
5545 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5546 	    __func__, fcport->port_name);
5547 
5548 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5549 	fcport->login_retry = vha->hw->login_retry_count;
5550 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5551 	fcport->deleted = 0;
5552 	if (vha->hw->current_topology == ISP_CFG_NL)
5553 		fcport->logout_on_delete = 0;
5554 	else
5555 		fcport->logout_on_delete = 1;
5556 	fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
5557 
5558 	if (fcport->tgt_link_down_time < fcport->dev_loss_tmo) {
5559 		fcport->tgt_short_link_down_cnt++;
5560 		fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
5561 	}
5562 
5563 	switch (vha->hw->current_topology) {
5564 	case ISP_CFG_N:
5565 	case ISP_CFG_NL:
5566 		fcport->keep_nport_handle = 1;
5567 		break;
5568 	default:
5569 		break;
5570 	}
5571 
5572 	qla2x00_iidma_fcport(vha, fcport);
5573 
5574 	qla2x00_dfs_create_rport(vha, fcport);
5575 
5576 	if (NVME_TARGET(vha->hw, fcport)) {
5577 		qla_nvme_register_remote(vha, fcport);
5578 		qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5579 		qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5580 		return;
5581 	}
5582 
5583 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5584 
5585 	switch (vha->host->active_mode) {
5586 	case MODE_INITIATOR:
5587 		qla2x00_reg_remote_port(vha, fcport);
5588 		break;
5589 	case MODE_TARGET:
5590 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5591 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5592 			qlt_fc_port_added(vha, fcport);
5593 		break;
5594 	case MODE_DUAL:
5595 		qla2x00_reg_remote_port(vha, fcport);
5596 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5597 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5598 			qlt_fc_port_added(vha, fcport);
5599 		break;
5600 	default:
5601 		break;
5602 	}
5603 
5604 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5605 
5606 	if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
5607 		if (fcport->id_changed) {
5608 			fcport->id_changed = 0;
5609 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5610 			    "%s %d %8phC post gfpnid fcp_cnt %d\n",
5611 			    __func__, __LINE__, fcport->port_name,
5612 			    vha->fcport_count);
5613 			qla24xx_post_gfpnid_work(vha, fcport);
5614 		} else {
5615 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5616 			    "%s %d %8phC post gpsc fcp_cnt %d\n",
5617 			    __func__, __LINE__, fcport->port_name,
5618 			    vha->fcport_count);
5619 			qla24xx_post_gpsc_work(vha, fcport);
5620 		}
5621 	}
5622 
5623 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5624 }
5625 
5626 void qla_register_fcport_fn(struct work_struct *work)
5627 {
5628 	fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
5629 	u32 rscn_gen = fcport->rscn_gen;
5630 	u16 data[2];
5631 
5632 	if (IS_SW_RESV_ADDR(fcport->d_id))
5633 		return;
5634 
5635 	qla2x00_update_fcport(fcport->vha, fcport);
5636 
5637 	if (rscn_gen != fcport->rscn_gen) {
5638 		/* RSCN(s) came in while registration */
5639 		switch (fcport->next_disc_state) {
5640 		case DSC_DELETE_PEND:
5641 			qlt_schedule_sess_for_deletion(fcport);
5642 			break;
5643 		case DSC_ADISC:
5644 			data[0] = data[1] = 0;
5645 			qla2x00_post_async_adisc_work(fcport->vha, fcport,
5646 			    data);
5647 			break;
5648 		default:
5649 			break;
5650 		}
5651 	}
5652 }
5653 
5654 /*
5655  * qla2x00_configure_fabric
5656  *      Setup SNS devices with loop ID's.
5657  *
5658  * Input:
5659  *      ha = adapter block pointer.
5660  *
5661  * Returns:
5662  *      0 = success.
5663  *      BIT_0 = error
5664  */
5665 static int
5666 qla2x00_configure_fabric(scsi_qla_host_t *vha)
5667 {
5668 	int	rval;
5669 	fc_port_t	*fcport;
5670 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5671 	uint16_t	loop_id;
5672 	LIST_HEAD(new_fcports);
5673 	struct qla_hw_data *ha = vha->hw;
5674 	int		discovery_gen;
5675 
5676 	/* If FL port exists, then SNS is present */
5677 	if (IS_FWI2_CAPABLE(ha))
5678 		loop_id = NPH_F_PORT;
5679 	else
5680 		loop_id = SNS_FL_PORT;
5681 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
5682 	if (rval != QLA_SUCCESS) {
5683 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
5684 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
5685 
5686 		vha->device_flags &= ~SWITCH_FOUND;
5687 		return (QLA_SUCCESS);
5688 	}
5689 	vha->device_flags |= SWITCH_FOUND;
5690 
5691 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_port_name, 0);
5692 	if (rval != QLA_SUCCESS)
5693 		ql_dbg(ql_dbg_disc, vha, 0x20ff,
5694 		    "Failed to get Fabric Port Name\n");
5695 
5696 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
5697 		rval = qla2x00_send_change_request(vha, 0x3, 0);
5698 		if (rval != QLA_SUCCESS)
5699 			ql_log(ql_log_warn, vha, 0x121,
5700 			    "Failed to enable receiving of RSCN requests: 0x%x.\n",
5701 			    rval);
5702 	}
5703 
5704 	do {
5705 		qla2x00_mgmt_svr_login(vha);
5706 
5707 		/* Ensure we are logged into the SNS. */
5708 		loop_id = NPH_SNS_LID(ha);
5709 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
5710 		    0xfc, mb, BIT_1|BIT_0);
5711 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5712 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
5713 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
5714 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
5715 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5716 			return rval;
5717 		}
5718 
5719 		/* FDMI support. */
5720 		if (ql2xfdmienable &&
5721 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
5722 			qla2x00_fdmi_register(vha);
5723 
5724 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
5725 			if (qla2x00_rft_id(vha)) {
5726 				/* EMPTY */
5727 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
5728 				    "Register FC-4 TYPE failed.\n");
5729 				if (test_bit(LOOP_RESYNC_NEEDED,
5730 				    &vha->dpc_flags))
5731 					break;
5732 			}
5733 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
5734 				/* EMPTY */
5735 				ql_dbg(ql_dbg_disc, vha, 0x209a,
5736 				    "Register FC-4 Features failed.\n");
5737 				if (test_bit(LOOP_RESYNC_NEEDED,
5738 				    &vha->dpc_flags))
5739 					break;
5740 			}
5741 			if (vha->flags.nvme_enabled) {
5742 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
5743 					ql_dbg(ql_dbg_disc, vha, 0x2049,
5744 					    "Register NVME FC Type Features failed.\n");
5745 				}
5746 			}
5747 			if (qla2x00_rnn_id(vha)) {
5748 				/* EMPTY */
5749 				ql_dbg(ql_dbg_disc, vha, 0x2104,
5750 				    "Register Node Name failed.\n");
5751 				if (test_bit(LOOP_RESYNC_NEEDED,
5752 				    &vha->dpc_flags))
5753 					break;
5754 			} else if (qla2x00_rsnn_nn(vha)) {
5755 				/* EMPTY */
5756 				ql_dbg(ql_dbg_disc, vha, 0x209b,
5757 				    "Register Symbolic Node Name failed.\n");
5758 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5759 					break;
5760 			}
5761 		}
5762 
5763 
5764 		/* Mark the time right before querying FW for connected ports.
5765 		 * This process is long, asynchronous and by the time it's done,
5766 		 * collected information might not be accurate anymore. E.g.
5767 		 * disconnected port might have re-connected and a brand new
5768 		 * session has been created. In this case session's generation
5769 		 * will be newer than discovery_gen. */
5770 		qlt_do_generation_tick(vha, &discovery_gen);
5771 
5772 		if (USE_ASYNC_SCAN(ha)) {
5773 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
5774 			    NULL);
5775 			if (rval)
5776 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5777 		} else  {
5778 			list_for_each_entry(fcport, &vha->vp_fcports, list)
5779 				fcport->scan_state = QLA_FCPORT_SCAN;
5780 
5781 			rval = qla2x00_find_all_fabric_devs(vha);
5782 		}
5783 		if (rval != QLA_SUCCESS)
5784 			break;
5785 	} while (0);
5786 
5787 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
5788 		qla_nvme_register_hba(vha);
5789 
5790 	if (rval)
5791 		ql_dbg(ql_dbg_disc, vha, 0x2068,
5792 		    "Configure fabric error exit rval=%d.\n", rval);
5793 
5794 	return (rval);
5795 }
5796 
5797 /*
5798  * qla2x00_find_all_fabric_devs
5799  *
5800  * Input:
5801  *	ha = adapter block pointer.
5802  *	dev = database device entry pointer.
5803  *
5804  * Returns:
5805  *	0 = success.
5806  *
5807  * Context:
5808  *	Kernel context.
5809  */
5810 static int
5811 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
5812 {
5813 	int		rval;
5814 	uint16_t	loop_id;
5815 	fc_port_t	*fcport, *new_fcport;
5816 	int		found;
5817 
5818 	sw_info_t	*swl;
5819 	int		swl_idx;
5820 	int		first_dev, last_dev;
5821 	port_id_t	wrap = {}, nxt_d_id;
5822 	struct qla_hw_data *ha = vha->hw;
5823 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5824 	unsigned long flags;
5825 
5826 	rval = QLA_SUCCESS;
5827 
5828 	/* Try GID_PT to get device list, else GAN. */
5829 	if (!ha->swl)
5830 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
5831 		    GFP_KERNEL);
5832 	swl = ha->swl;
5833 	if (!swl) {
5834 		/*EMPTY*/
5835 		ql_dbg(ql_dbg_disc, vha, 0x209c,
5836 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
5837 	} else {
5838 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
5839 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
5840 			swl = NULL;
5841 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5842 				return rval;
5843 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
5844 			swl = NULL;
5845 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5846 				return rval;
5847 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
5848 			swl = NULL;
5849 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5850 				return rval;
5851 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
5852 			swl = NULL;
5853 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5854 				return rval;
5855 		}
5856 
5857 		/* If other queries succeeded probe for FC-4 type */
5858 		if (swl) {
5859 			qla2x00_gff_id(vha, swl);
5860 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5861 				return rval;
5862 		}
5863 	}
5864 	swl_idx = 0;
5865 
5866 	/* Allocate temporary fcport for any new fcports discovered. */
5867 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5868 	if (new_fcport == NULL) {
5869 		ql_log(ql_log_warn, vha, 0x209d,
5870 		    "Failed to allocate memory for fcport.\n");
5871 		return (QLA_MEMORY_ALLOC_FAILED);
5872 	}
5873 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
5874 	/* Set start port ID scan at adapter ID. */
5875 	first_dev = 1;
5876 	last_dev = 0;
5877 
5878 	/* Starting free loop ID. */
5879 	loop_id = ha->min_external_loopid;
5880 	for (; loop_id <= ha->max_loop_id; loop_id++) {
5881 		if (qla2x00_is_reserved_id(vha, loop_id))
5882 			continue;
5883 
5884 		if (ha->current_topology == ISP_CFG_FL &&
5885 		    (atomic_read(&vha->loop_down_timer) ||
5886 		     LOOP_TRANSITION(vha))) {
5887 			atomic_set(&vha->loop_down_timer, 0);
5888 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5889 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5890 			break;
5891 		}
5892 
5893 		if (swl != NULL) {
5894 			if (last_dev) {
5895 				wrap.b24 = new_fcport->d_id.b24;
5896 			} else {
5897 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
5898 				memcpy(new_fcport->node_name,
5899 				    swl[swl_idx].node_name, WWN_SIZE);
5900 				memcpy(new_fcport->port_name,
5901 				    swl[swl_idx].port_name, WWN_SIZE);
5902 				memcpy(new_fcport->fabric_port_name,
5903 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
5904 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
5905 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
5906 
5907 				new_fcport->nvme_flag = 0;
5908 				if (vha->flags.nvme_enabled &&
5909 				    swl[swl_idx].fc4_type & FS_FC4TYPE_NVME) {
5910 					ql_log(ql_log_info, vha, 0x2131,
5911 					    "FOUND: NVME port %8phC as FC Type 28h\n",
5912 					    new_fcport->port_name);
5913 				}
5914 
5915 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
5916 					last_dev = 1;
5917 				}
5918 				swl_idx++;
5919 			}
5920 		} else {
5921 			/* Send GA_NXT to the switch */
5922 			rval = qla2x00_ga_nxt(vha, new_fcport);
5923 			if (rval != QLA_SUCCESS) {
5924 				ql_log(ql_log_warn, vha, 0x209e,
5925 				    "SNS scan failed -- assuming "
5926 				    "zero-entry result.\n");
5927 				rval = QLA_SUCCESS;
5928 				break;
5929 			}
5930 		}
5931 
5932 		/* If wrap on switch device list, exit. */
5933 		if (first_dev) {
5934 			wrap.b24 = new_fcport->d_id.b24;
5935 			first_dev = 0;
5936 		} else if (new_fcport->d_id.b24 == wrap.b24) {
5937 			ql_dbg(ql_dbg_disc, vha, 0x209f,
5938 			    "Device wrap (%02x%02x%02x).\n",
5939 			    new_fcport->d_id.b.domain,
5940 			    new_fcport->d_id.b.area,
5941 			    new_fcport->d_id.b.al_pa);
5942 			break;
5943 		}
5944 
5945 		/* Bypass if same physical adapter. */
5946 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
5947 			continue;
5948 
5949 		/* Bypass virtual ports of the same host. */
5950 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
5951 			continue;
5952 
5953 		/* Bypass if same domain and area of adapter. */
5954 		if (((new_fcport->d_id.b24 & 0xffff00) ==
5955 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
5956 			ISP_CFG_FL)
5957 			    continue;
5958 
5959 		/* Bypass reserved domain fields. */
5960 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
5961 			continue;
5962 
5963 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
5964 		if (ql2xgffidenable &&
5965 		    (!(new_fcport->fc4_type & FS_FC4TYPE_FCP) &&
5966 		    new_fcport->fc4_type != 0))
5967 			continue;
5968 
5969 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5970 
5971 		/* Locate matching device in database. */
5972 		found = 0;
5973 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5974 			if (memcmp(new_fcport->port_name, fcport->port_name,
5975 			    WWN_SIZE))
5976 				continue;
5977 
5978 			fcport->scan_state = QLA_FCPORT_FOUND;
5979 
5980 			found++;
5981 
5982 			/* Update port state. */
5983 			memcpy(fcport->fabric_port_name,
5984 			    new_fcport->fabric_port_name, WWN_SIZE);
5985 			fcport->fp_speed = new_fcport->fp_speed;
5986 
5987 			/*
5988 			 * If address the same and state FCS_ONLINE
5989 			 * (or in target mode), nothing changed.
5990 			 */
5991 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
5992 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
5993 			     (vha->host->active_mode == MODE_TARGET))) {
5994 				break;
5995 			}
5996 
5997 			if (fcport->login_retry == 0)
5998 				fcport->login_retry =
5999 					vha->hw->login_retry_count;
6000 			/*
6001 			 * If device was not a fabric device before.
6002 			 */
6003 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
6004 				fcport->d_id.b24 = new_fcport->d_id.b24;
6005 				qla2x00_clear_loop_id(fcport);
6006 				fcport->flags |= (FCF_FABRIC_DEVICE |
6007 				    FCF_LOGIN_NEEDED);
6008 				break;
6009 			}
6010 
6011 			/*
6012 			 * Port ID changed or device was marked to be updated;
6013 			 * Log it out if still logged in and mark it for
6014 			 * relogin later.
6015 			 */
6016 			if (qla_tgt_mode_enabled(base_vha)) {
6017 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
6018 					 "port changed FC ID, %8phC"
6019 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
6020 					 fcport->port_name,
6021 					 fcport->d_id.b.domain,
6022 					 fcport->d_id.b.area,
6023 					 fcport->d_id.b.al_pa,
6024 					 fcport->loop_id,
6025 					 new_fcport->d_id.b.domain,
6026 					 new_fcport->d_id.b.area,
6027 					 new_fcport->d_id.b.al_pa);
6028 				fcport->d_id.b24 = new_fcport->d_id.b24;
6029 				break;
6030 			}
6031 
6032 			fcport->d_id.b24 = new_fcport->d_id.b24;
6033 			fcport->flags |= FCF_LOGIN_NEEDED;
6034 			break;
6035 		}
6036 
6037 		if (found && NVME_TARGET(vha->hw, fcport)) {
6038 			if (fcport->disc_state == DSC_DELETE_PEND) {
6039 				qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
6040 				vha->fcport_count--;
6041 				fcport->login_succ = 0;
6042 			}
6043 		}
6044 
6045 		if (found) {
6046 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6047 			continue;
6048 		}
6049 		/* If device was not in our fcports list, then add it. */
6050 		new_fcport->scan_state = QLA_FCPORT_FOUND;
6051 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
6052 
6053 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6054 
6055 
6056 		/* Allocate a new replacement fcport. */
6057 		nxt_d_id.b24 = new_fcport->d_id.b24;
6058 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6059 		if (new_fcport == NULL) {
6060 			ql_log(ql_log_warn, vha, 0xd032,
6061 			    "Memory allocation failed for fcport.\n");
6062 			return (QLA_MEMORY_ALLOC_FAILED);
6063 		}
6064 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
6065 		new_fcport->d_id.b24 = nxt_d_id.b24;
6066 	}
6067 
6068 	qla2x00_free_fcport(new_fcport);
6069 
6070 	/*
6071 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
6072 	 */
6073 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6074 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6075 			break;
6076 
6077 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
6078 			continue;
6079 
6080 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
6081 			if ((qla_dual_mode_enabled(vha) ||
6082 			    qla_ini_mode_enabled(vha)) &&
6083 			    atomic_read(&fcport->state) == FCS_ONLINE) {
6084 				qla2x00_mark_device_lost(vha, fcport,
6085 					ql2xplogiabsentdevice);
6086 				if (fcport->loop_id != FC_NO_LOOP_ID &&
6087 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
6088 				    fcport->port_type != FCT_INITIATOR &&
6089 				    fcport->port_type != FCT_BROADCAST) {
6090 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
6091 					    "%s %d %8phC post del sess\n",
6092 					    __func__, __LINE__,
6093 					    fcport->port_name);
6094 					qlt_schedule_sess_for_deletion(fcport);
6095 					continue;
6096 				}
6097 			}
6098 		}
6099 
6100 		if (fcport->scan_state == QLA_FCPORT_FOUND &&
6101 		    (fcport->flags & FCF_LOGIN_NEEDED) != 0)
6102 			qla24xx_fcport_handle_login(vha, fcport);
6103 	}
6104 	return (rval);
6105 }
6106 
6107 /* FW does not set aside Loop id for MGMT Server/FFFFFAh */
6108 int
6109 qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
6110 {
6111 	int loop_id = FC_NO_LOOP_ID;
6112 	int lid = NPH_MGMT_SERVER - vha->vp_idx;
6113 	unsigned long flags;
6114 	struct qla_hw_data *ha = vha->hw;
6115 
6116 	if (vha->vp_idx == 0) {
6117 		set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
6118 		return NPH_MGMT_SERVER;
6119 	}
6120 
6121 	/* pick id from high and work down to low */
6122 	spin_lock_irqsave(&ha->vport_slock, flags);
6123 	for (; lid > 0; lid--) {
6124 		if (!test_bit(lid, vha->hw->loop_id_map)) {
6125 			set_bit(lid, vha->hw->loop_id_map);
6126 			loop_id = lid;
6127 			break;
6128 		}
6129 	}
6130 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6131 
6132 	return loop_id;
6133 }
6134 
6135 /*
6136  * qla2x00_fabric_login
6137  *	Issue fabric login command.
6138  *
6139  * Input:
6140  *	ha = adapter block pointer.
6141  *	device = pointer to FC device type structure.
6142  *
6143  * Returns:
6144  *      0 - Login successfully
6145  *      1 - Login failed
6146  *      2 - Initiator device
6147  *      3 - Fatal error
6148  */
6149 int
6150 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
6151     uint16_t *next_loopid)
6152 {
6153 	int	rval;
6154 	int	retry;
6155 	uint16_t tmp_loopid;
6156 	uint16_t mb[MAILBOX_REGISTER_COUNT];
6157 	struct qla_hw_data *ha = vha->hw;
6158 
6159 	retry = 0;
6160 	tmp_loopid = 0;
6161 
6162 	for (;;) {
6163 		ql_dbg(ql_dbg_disc, vha, 0x2000,
6164 		    "Trying Fabric Login w/loop id 0x%04x for port "
6165 		    "%02x%02x%02x.\n",
6166 		    fcport->loop_id, fcport->d_id.b.domain,
6167 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6168 
6169 		/* Login fcport on switch. */
6170 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
6171 		    fcport->d_id.b.domain, fcport->d_id.b.area,
6172 		    fcport->d_id.b.al_pa, mb, BIT_0);
6173 		if (rval != QLA_SUCCESS) {
6174 			return rval;
6175 		}
6176 		if (mb[0] == MBS_PORT_ID_USED) {
6177 			/*
6178 			 * Device has another loop ID.  The firmware team
6179 			 * recommends the driver perform an implicit login with
6180 			 * the specified ID again. The ID we just used is save
6181 			 * here so we return with an ID that can be tried by
6182 			 * the next login.
6183 			 */
6184 			retry++;
6185 			tmp_loopid = fcport->loop_id;
6186 			fcport->loop_id = mb[1];
6187 
6188 			ql_dbg(ql_dbg_disc, vha, 0x2001,
6189 			    "Fabric Login: port in use - next loop "
6190 			    "id=0x%04x, port id= %02x%02x%02x.\n",
6191 			    fcport->loop_id, fcport->d_id.b.domain,
6192 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6193 
6194 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
6195 			/*
6196 			 * Login succeeded.
6197 			 */
6198 			if (retry) {
6199 				/* A retry occurred before. */
6200 				*next_loopid = tmp_loopid;
6201 			} else {
6202 				/*
6203 				 * No retry occurred before. Just increment the
6204 				 * ID value for next login.
6205 				 */
6206 				*next_loopid = (fcport->loop_id + 1);
6207 			}
6208 
6209 			if (mb[1] & BIT_0) {
6210 				fcport->port_type = FCT_INITIATOR;
6211 			} else {
6212 				fcport->port_type = FCT_TARGET;
6213 				if (mb[1] & BIT_1) {
6214 					fcport->flags |= FCF_FCP2_DEVICE;
6215 				}
6216 			}
6217 
6218 			if (mb[10] & BIT_0)
6219 				fcport->supported_classes |= FC_COS_CLASS2;
6220 			if (mb[10] & BIT_1)
6221 				fcport->supported_classes |= FC_COS_CLASS3;
6222 
6223 			if (IS_FWI2_CAPABLE(ha)) {
6224 				if (mb[10] & BIT_7)
6225 					fcport->flags |=
6226 					    FCF_CONF_COMP_SUPPORTED;
6227 			}
6228 
6229 			rval = QLA_SUCCESS;
6230 			break;
6231 		} else if (mb[0] == MBS_LOOP_ID_USED) {
6232 			/*
6233 			 * Loop ID already used, try next loop ID.
6234 			 */
6235 			fcport->loop_id++;
6236 			rval = qla2x00_find_new_loop_id(vha, fcport);
6237 			if (rval != QLA_SUCCESS) {
6238 				/* Ran out of loop IDs to use */
6239 				break;
6240 			}
6241 		} else if (mb[0] == MBS_COMMAND_ERROR) {
6242 			/*
6243 			 * Firmware possibly timed out during login. If NO
6244 			 * retries are left to do then the device is declared
6245 			 * dead.
6246 			 */
6247 			*next_loopid = fcport->loop_id;
6248 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6249 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6250 			    fcport->d_id.b.al_pa);
6251 			qla2x00_mark_device_lost(vha, fcport, 1);
6252 
6253 			rval = 1;
6254 			break;
6255 		} else {
6256 			/*
6257 			 * unrecoverable / not handled error
6258 			 */
6259 			ql_dbg(ql_dbg_disc, vha, 0x2002,
6260 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
6261 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
6262 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
6263 			    fcport->loop_id, jiffies);
6264 
6265 			*next_loopid = fcport->loop_id;
6266 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6267 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6268 			    fcport->d_id.b.al_pa);
6269 			qla2x00_clear_loop_id(fcport);
6270 			fcport->login_retry = 0;
6271 
6272 			rval = 3;
6273 			break;
6274 		}
6275 	}
6276 
6277 	return (rval);
6278 }
6279 
6280 /*
6281  * qla2x00_local_device_login
6282  *	Issue local device login command.
6283  *
6284  * Input:
6285  *	ha = adapter block pointer.
6286  *	loop_id = loop id of device to login to.
6287  *
6288  * Returns (Where's the #define!!!!):
6289  *      0 - Login successfully
6290  *      1 - Login failed
6291  *      3 - Fatal error
6292  */
6293 int
6294 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
6295 {
6296 	int		rval;
6297 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6298 
6299 	memset(mb, 0, sizeof(mb));
6300 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
6301 	if (rval == QLA_SUCCESS) {
6302 		/* Interrogate mailbox registers for any errors */
6303 		if (mb[0] == MBS_COMMAND_ERROR)
6304 			rval = 1;
6305 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
6306 			/* device not in PCB table */
6307 			rval = 3;
6308 	}
6309 
6310 	return (rval);
6311 }
6312 
6313 /*
6314  *  qla2x00_loop_resync
6315  *      Resync with fibre channel devices.
6316  *
6317  * Input:
6318  *      ha = adapter block pointer.
6319  *
6320  * Returns:
6321  *      0 = success
6322  */
6323 int
6324 qla2x00_loop_resync(scsi_qla_host_t *vha)
6325 {
6326 	int rval = QLA_SUCCESS;
6327 	uint32_t wait_time;
6328 
6329 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6330 	if (vha->flags.online) {
6331 		if (!(rval = qla2x00_fw_ready(vha))) {
6332 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
6333 			wait_time = 256;
6334 			do {
6335 				if (!IS_QLAFX00(vha->hw)) {
6336 					/*
6337 					 * Issue a marker after FW becomes
6338 					 * ready.
6339 					 */
6340 					qla2x00_marker(vha, vha->hw->base_qpair,
6341 					    0, 0, MK_SYNC_ALL);
6342 					vha->marker_needed = 0;
6343 				}
6344 
6345 				/* Remap devices on Loop. */
6346 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6347 
6348 				if (IS_QLAFX00(vha->hw))
6349 					qlafx00_configure_devices(vha);
6350 				else
6351 					qla2x00_configure_loop(vha);
6352 
6353 				wait_time--;
6354 			} while (!atomic_read(&vha->loop_down_timer) &&
6355 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6356 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
6357 				&vha->dpc_flags)));
6358 		}
6359 	}
6360 
6361 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6362 		return (QLA_FUNCTION_FAILED);
6363 
6364 	if (rval)
6365 		ql_dbg(ql_dbg_disc, vha, 0x206c,
6366 		    "%s *** FAILED ***.\n", __func__);
6367 
6368 	return (rval);
6369 }
6370 
6371 /*
6372 * qla2x00_perform_loop_resync
6373 * Description: This function will set the appropriate flags and call
6374 *              qla2x00_loop_resync. If successful loop will be resynced
6375 * Arguments : scsi_qla_host_t pointer
6376 * returm    : Success or Failure
6377 */
6378 
6379 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
6380 {
6381 	int32_t rval = 0;
6382 
6383 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
6384 		/*Configure the flags so that resync happens properly*/
6385 		atomic_set(&ha->loop_down_timer, 0);
6386 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
6387 			atomic_set(&ha->loop_state, LOOP_UP);
6388 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
6389 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
6390 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
6391 
6392 			rval = qla2x00_loop_resync(ha);
6393 		} else
6394 			atomic_set(&ha->loop_state, LOOP_DEAD);
6395 
6396 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
6397 	}
6398 
6399 	return rval;
6400 }
6401 
6402 void
6403 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
6404 {
6405 	fc_port_t *fcport;
6406 	struct scsi_qla_host *vha;
6407 	struct qla_hw_data *ha = base_vha->hw;
6408 	unsigned long flags;
6409 
6410 	spin_lock_irqsave(&ha->vport_slock, flags);
6411 	/* Go with deferred removal of rport references. */
6412 	list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
6413 		atomic_inc(&vha->vref_count);
6414 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6415 			if (fcport->drport &&
6416 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
6417 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6418 				qla2x00_rport_del(fcport);
6419 
6420 				spin_lock_irqsave(&ha->vport_slock, flags);
6421 			}
6422 		}
6423 		atomic_dec(&vha->vref_count);
6424 		wake_up(&vha->vref_waitq);
6425 	}
6426 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6427 }
6428 
6429 /* Assumes idc_lock always held on entry */
6430 void
6431 qla83xx_reset_ownership(scsi_qla_host_t *vha)
6432 {
6433 	struct qla_hw_data *ha = vha->hw;
6434 	uint32_t drv_presence, drv_presence_mask;
6435 	uint32_t dev_part_info1, dev_part_info2, class_type;
6436 	uint32_t class_type_mask = 0x3;
6437 	uint16_t fcoe_other_function = 0xffff, i;
6438 
6439 	if (IS_QLA8044(ha)) {
6440 		drv_presence = qla8044_rd_direct(vha,
6441 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
6442 		dev_part_info1 = qla8044_rd_direct(vha,
6443 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
6444 		dev_part_info2 = qla8044_rd_direct(vha,
6445 		    QLA8044_CRB_DEV_PART_INFO2);
6446 	} else {
6447 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6448 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
6449 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
6450 	}
6451 	for (i = 0; i < 8; i++) {
6452 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
6453 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6454 		    (i != ha->portnum)) {
6455 			fcoe_other_function = i;
6456 			break;
6457 		}
6458 	}
6459 	if (fcoe_other_function == 0xffff) {
6460 		for (i = 0; i < 8; i++) {
6461 			class_type = ((dev_part_info2 >> (i * 4)) &
6462 			    class_type_mask);
6463 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6464 			    ((i + 8) != ha->portnum)) {
6465 				fcoe_other_function = i + 8;
6466 				break;
6467 			}
6468 		}
6469 	}
6470 	/*
6471 	 * Prepare drv-presence mask based on fcoe functions present.
6472 	 * However consider only valid physical fcoe function numbers (0-15).
6473 	 */
6474 	drv_presence_mask = ~((1 << (ha->portnum)) |
6475 			((fcoe_other_function == 0xffff) ?
6476 			 0 : (1 << (fcoe_other_function))));
6477 
6478 	/* We are the reset owner iff:
6479 	 *    - No other protocol drivers present.
6480 	 *    - This is the lowest among fcoe functions. */
6481 	if (!(drv_presence & drv_presence_mask) &&
6482 			(ha->portnum < fcoe_other_function)) {
6483 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6484 		    "This host is Reset owner.\n");
6485 		ha->flags.nic_core_reset_owner = 1;
6486 	}
6487 }
6488 
6489 static int
6490 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6491 {
6492 	int rval = QLA_SUCCESS;
6493 	struct qla_hw_data *ha = vha->hw;
6494 	uint32_t drv_ack;
6495 
6496 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6497 	if (rval == QLA_SUCCESS) {
6498 		drv_ack |= (1 << ha->portnum);
6499 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6500 	}
6501 
6502 	return rval;
6503 }
6504 
6505 static int
6506 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6507 {
6508 	int rval = QLA_SUCCESS;
6509 	struct qla_hw_data *ha = vha->hw;
6510 	uint32_t drv_ack;
6511 
6512 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6513 	if (rval == QLA_SUCCESS) {
6514 		drv_ack &= ~(1 << ha->portnum);
6515 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6516 	}
6517 
6518 	return rval;
6519 }
6520 
6521 static const char *
6522 qla83xx_dev_state_to_string(uint32_t dev_state)
6523 {
6524 	switch (dev_state) {
6525 	case QLA8XXX_DEV_COLD:
6526 		return "COLD/RE-INIT";
6527 	case QLA8XXX_DEV_INITIALIZING:
6528 		return "INITIALIZING";
6529 	case QLA8XXX_DEV_READY:
6530 		return "READY";
6531 	case QLA8XXX_DEV_NEED_RESET:
6532 		return "NEED RESET";
6533 	case QLA8XXX_DEV_NEED_QUIESCENT:
6534 		return "NEED QUIESCENT";
6535 	case QLA8XXX_DEV_FAILED:
6536 		return "FAILED";
6537 	case QLA8XXX_DEV_QUIESCENT:
6538 		return "QUIESCENT";
6539 	default:
6540 		return "Unknown";
6541 	}
6542 }
6543 
6544 /* Assumes idc-lock always held on entry */
6545 void
6546 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6547 {
6548 	struct qla_hw_data *ha = vha->hw;
6549 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6550 
6551 	switch (audit_type) {
6552 	case IDC_AUDIT_TIMESTAMP:
6553 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6554 		idc_audit_reg = (ha->portnum) |
6555 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6556 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6557 		break;
6558 
6559 	case IDC_AUDIT_COMPLETION:
6560 		duration_secs = ((jiffies_to_msecs(jiffies) -
6561 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6562 		idc_audit_reg = (ha->portnum) |
6563 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6564 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6565 		break;
6566 
6567 	default:
6568 		ql_log(ql_log_warn, vha, 0xb078,
6569 		    "Invalid audit type specified.\n");
6570 		break;
6571 	}
6572 }
6573 
6574 /* Assumes idc_lock always held on entry */
6575 static int
6576 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6577 {
6578 	struct qla_hw_data *ha = vha->hw;
6579 	uint32_t  idc_control, dev_state;
6580 
6581 	__qla83xx_get_idc_control(vha, &idc_control);
6582 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6583 		ql_log(ql_log_info, vha, 0xb080,
6584 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6585 		    idc_control);
6586 		return QLA_FUNCTION_FAILED;
6587 	}
6588 
6589 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6590 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6591 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6592 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6593 		    QLA8XXX_DEV_NEED_RESET);
6594 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6595 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6596 	} else {
6597 		const char *state = qla83xx_dev_state_to_string(dev_state);
6598 
6599 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
6600 
6601 		/* SV: XXX: Is timeout required here? */
6602 		/* Wait for IDC state change READY -> NEED_RESET */
6603 		while (dev_state == QLA8XXX_DEV_READY) {
6604 			qla83xx_idc_unlock(vha, 0);
6605 			msleep(200);
6606 			qla83xx_idc_lock(vha, 0);
6607 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6608 		}
6609 	}
6610 
6611 	/* Send IDC ack by writing to drv-ack register */
6612 	__qla83xx_set_drv_ack(vha);
6613 
6614 	return QLA_SUCCESS;
6615 }
6616 
6617 int
6618 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6619 {
6620 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6621 }
6622 
6623 int
6624 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6625 {
6626 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6627 }
6628 
6629 static int
6630 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6631 {
6632 	uint32_t drv_presence = 0;
6633 	struct qla_hw_data *ha = vha->hw;
6634 
6635 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6636 	if (drv_presence & (1 << ha->portnum))
6637 		return QLA_SUCCESS;
6638 	else
6639 		return QLA_TEST_FAILED;
6640 }
6641 
6642 int
6643 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6644 {
6645 	int rval = QLA_SUCCESS;
6646 	struct qla_hw_data *ha = vha->hw;
6647 
6648 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6649 	    "Entered  %s().\n", __func__);
6650 
6651 	if (vha->device_flags & DFLG_DEV_FAILED) {
6652 		ql_log(ql_log_warn, vha, 0xb059,
6653 		    "Device in unrecoverable FAILED state.\n");
6654 		return QLA_FUNCTION_FAILED;
6655 	}
6656 
6657 	qla83xx_idc_lock(vha, 0);
6658 
6659 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6660 		ql_log(ql_log_warn, vha, 0xb05a,
6661 		    "Function=0x%x has been removed from IDC participation.\n",
6662 		    ha->portnum);
6663 		rval = QLA_FUNCTION_FAILED;
6664 		goto exit;
6665 	}
6666 
6667 	qla83xx_reset_ownership(vha);
6668 
6669 	rval = qla83xx_initiating_reset(vha);
6670 
6671 	/*
6672 	 * Perform reset if we are the reset-owner,
6673 	 * else wait till IDC state changes to READY/FAILED.
6674 	 */
6675 	if (rval == QLA_SUCCESS) {
6676 		rval = qla83xx_idc_state_handler(vha);
6677 
6678 		if (rval == QLA_SUCCESS)
6679 			ha->flags.nic_core_hung = 0;
6680 		__qla83xx_clear_drv_ack(vha);
6681 	}
6682 
6683 exit:
6684 	qla83xx_idc_unlock(vha, 0);
6685 
6686 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6687 
6688 	return rval;
6689 }
6690 
6691 int
6692 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6693 {
6694 	struct qla_hw_data *ha = vha->hw;
6695 	int rval = QLA_FUNCTION_FAILED;
6696 
6697 	if (!IS_MCTP_CAPABLE(ha)) {
6698 		/* This message can be removed from the final version */
6699 		ql_log(ql_log_info, vha, 0x506d,
6700 		    "This board is not MCTP capable\n");
6701 		return rval;
6702 	}
6703 
6704 	if (!ha->mctp_dump) {
6705 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6706 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6707 
6708 		if (!ha->mctp_dump) {
6709 			ql_log(ql_log_warn, vha, 0x506e,
6710 			    "Failed to allocate memory for mctp dump\n");
6711 			return rval;
6712 		}
6713 	}
6714 
6715 #define MCTP_DUMP_STR_ADDR	0x00000000
6716 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
6717 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
6718 	if (rval != QLA_SUCCESS) {
6719 		ql_log(ql_log_warn, vha, 0x506f,
6720 		    "Failed to capture mctp dump\n");
6721 	} else {
6722 		ql_log(ql_log_info, vha, 0x5070,
6723 		    "Mctp dump capture for host (%ld/%p).\n",
6724 		    vha->host_no, ha->mctp_dump);
6725 		ha->mctp_dumped = 1;
6726 	}
6727 
6728 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
6729 		ha->flags.nic_core_reset_hdlr_active = 1;
6730 		rval = qla83xx_restart_nic_firmware(vha);
6731 		if (rval)
6732 			/* NIC Core reset failed. */
6733 			ql_log(ql_log_warn, vha, 0x5071,
6734 			    "Failed to restart nic firmware\n");
6735 		else
6736 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
6737 			    "Restarted NIC firmware successfully.\n");
6738 		ha->flags.nic_core_reset_hdlr_active = 0;
6739 	}
6740 
6741 	return rval;
6742 
6743 }
6744 
6745 /*
6746 * qla2x00_quiesce_io
6747 * Description: This function will block the new I/Os
6748 *              Its not aborting any I/Os as context
6749 *              is not destroyed during quiescence
6750 * Arguments: scsi_qla_host_t
6751 * return   : void
6752 */
6753 void
6754 qla2x00_quiesce_io(scsi_qla_host_t *vha)
6755 {
6756 	struct qla_hw_data *ha = vha->hw;
6757 	struct scsi_qla_host *vp;
6758 
6759 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
6760 	    "Quiescing I/O - ha=%p.\n", ha);
6761 
6762 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
6763 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6764 		atomic_set(&vha->loop_state, LOOP_DOWN);
6765 		qla2x00_mark_all_devices_lost(vha);
6766 		list_for_each_entry(vp, &ha->vp_list, list)
6767 			qla2x00_mark_all_devices_lost(vp);
6768 	} else {
6769 		if (!atomic_read(&vha->loop_down_timer))
6770 			atomic_set(&vha->loop_down_timer,
6771 					LOOP_DOWN_TIME);
6772 	}
6773 	/* Wait for pending cmds to complete */
6774 	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
6775 		     != QLA_SUCCESS);
6776 }
6777 
6778 void
6779 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
6780 {
6781 	struct qla_hw_data *ha = vha->hw;
6782 	struct scsi_qla_host *vp;
6783 	unsigned long flags;
6784 	fc_port_t *fcport;
6785 	u16 i;
6786 
6787 	/* For ISP82XX, driver waits for completion of the commands.
6788 	 * online flag should be set.
6789 	 */
6790 	if (!(IS_P3P_TYPE(ha)))
6791 		vha->flags.online = 0;
6792 	ha->flags.chip_reset_done = 0;
6793 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
6794 	vha->qla_stats.total_isp_aborts++;
6795 
6796 	ql_log(ql_log_info, vha, 0x00af,
6797 	    "Performing ISP error recovery - ha=%p.\n", ha);
6798 
6799 	ha->flags.purge_mbox = 1;
6800 	/* For ISP82XX, reset_chip is just disabling interrupts.
6801 	 * Driver waits for the completion of the commands.
6802 	 * the interrupts need to be enabled.
6803 	 */
6804 	if (!(IS_P3P_TYPE(ha)))
6805 		ha->isp_ops->reset_chip(vha);
6806 
6807 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
6808 	SAVE_TOPO(ha);
6809 	ha->flags.rida_fmt2 = 0;
6810 	ha->flags.n2n_ae = 0;
6811 	ha->flags.lip_ae = 0;
6812 	ha->current_topology = 0;
6813 	QLA_FW_STOPPED(ha);
6814 	ha->flags.fw_init_done = 0;
6815 	ha->chip_reset++;
6816 	ha->base_qpair->chip_reset = ha->chip_reset;
6817 	for (i = 0; i < ha->max_qpairs; i++) {
6818 		if (ha->queue_pair_map[i])
6819 			ha->queue_pair_map[i]->chip_reset =
6820 				ha->base_qpair->chip_reset;
6821 	}
6822 
6823 	/* purge MBox commands */
6824 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
6825 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
6826 		complete(&ha->mbx_intr_comp);
6827 	}
6828 
6829 	i = 0;
6830 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
6831 	    atomic_read(&ha->num_pend_mbx_stage2) ||
6832 	    atomic_read(&ha->num_pend_mbx_stage1)) {
6833 		msleep(20);
6834 		i++;
6835 		if (i > 50)
6836 			break;
6837 	}
6838 	ha->flags.purge_mbox = 0;
6839 
6840 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
6841 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
6842 		atomic_set(&vha->loop_state, LOOP_DOWN);
6843 		qla2x00_mark_all_devices_lost(vha);
6844 
6845 		spin_lock_irqsave(&ha->vport_slock, flags);
6846 		list_for_each_entry(vp, &ha->vp_list, list) {
6847 			atomic_inc(&vp->vref_count);
6848 			spin_unlock_irqrestore(&ha->vport_slock, flags);
6849 
6850 			qla2x00_mark_all_devices_lost(vp);
6851 
6852 			spin_lock_irqsave(&ha->vport_slock, flags);
6853 			atomic_dec(&vp->vref_count);
6854 		}
6855 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6856 	} else {
6857 		if (!atomic_read(&vha->loop_down_timer))
6858 			atomic_set(&vha->loop_down_timer,
6859 			    LOOP_DOWN_TIME);
6860 	}
6861 
6862 	/* Clear all async request states across all VPs. */
6863 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6864 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6865 		fcport->scan_state = 0;
6866 	}
6867 	spin_lock_irqsave(&ha->vport_slock, flags);
6868 	list_for_each_entry(vp, &ha->vp_list, list) {
6869 		atomic_inc(&vp->vref_count);
6870 		spin_unlock_irqrestore(&ha->vport_slock, flags);
6871 
6872 		list_for_each_entry(fcport, &vp->vp_fcports, list)
6873 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
6874 
6875 		spin_lock_irqsave(&ha->vport_slock, flags);
6876 		atomic_dec(&vp->vref_count);
6877 	}
6878 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6879 
6880 	if (!ha->flags.eeh_busy) {
6881 		/* Make sure for ISP 82XX IO DMA is complete */
6882 		if (IS_P3P_TYPE(ha)) {
6883 			qla82xx_chip_reset_cleanup(vha);
6884 			ql_log(ql_log_info, vha, 0x00b4,
6885 			    "Done chip reset cleanup.\n");
6886 
6887 			/* Done waiting for pending commands.
6888 			 * Reset the online flag.
6889 			 */
6890 			vha->flags.online = 0;
6891 		}
6892 
6893 		/* Requeue all commands in outstanding command list. */
6894 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
6895 	}
6896 	/* memory barrier */
6897 	wmb();
6898 }
6899 
6900 /*
6901 *  qla2x00_abort_isp
6902 *      Resets ISP and aborts all outstanding commands.
6903 *
6904 * Input:
6905 *      ha           = adapter block pointer.
6906 *
6907 * Returns:
6908 *      0 = success
6909 */
6910 int
6911 qla2x00_abort_isp(scsi_qla_host_t *vha)
6912 {
6913 	int rval;
6914 	uint8_t        status = 0;
6915 	struct qla_hw_data *ha = vha->hw;
6916 	struct scsi_qla_host *vp;
6917 	struct req_que *req = ha->req_q_map[0];
6918 	unsigned long flags;
6919 
6920 	if (vha->flags.online) {
6921 		qla2x00_abort_isp_cleanup(vha);
6922 
6923 		if (vha->hw->flags.port_isolated)
6924 			return status;
6925 
6926 		if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
6927 			ha->flags.chip_reset_done = 1;
6928 			vha->flags.online = 1;
6929 			status = 0;
6930 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6931 			return status;
6932 		}
6933 
6934 		if (IS_QLA8031(ha)) {
6935 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
6936 			    "Clearing fcoe driver presence.\n");
6937 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
6938 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
6939 				    "Error while clearing DRV-Presence.\n");
6940 		}
6941 
6942 		if (unlikely(pci_channel_offline(ha->pdev) &&
6943 		    ha->flags.pci_channel_io_perm_failure)) {
6944 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6945 			status = 0;
6946 			return status;
6947 		}
6948 
6949 		switch (vha->qlini_mode) {
6950 		case QLA2XXX_INI_MODE_DISABLED:
6951 			if (!qla_tgt_mode_enabled(vha))
6952 				return 0;
6953 			break;
6954 		case QLA2XXX_INI_MODE_DUAL:
6955 			if (!qla_dual_mode_enabled(vha))
6956 				return 0;
6957 			break;
6958 		case QLA2XXX_INI_MODE_ENABLED:
6959 		default:
6960 			break;
6961 		}
6962 
6963 		ha->isp_ops->get_flash_version(vha, req->ring);
6964 
6965 		ha->isp_ops->nvram_config(vha);
6966 
6967 		if (!qla2x00_restart_isp(vha)) {
6968 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
6969 
6970 			if (!atomic_read(&vha->loop_down_timer)) {
6971 				/*
6972 				 * Issue marker command only when we are going
6973 				 * to start the I/O .
6974 				 */
6975 				vha->marker_needed = 1;
6976 			}
6977 
6978 			vha->flags.online = 1;
6979 
6980 			ha->isp_ops->enable_intrs(ha);
6981 
6982 			ha->isp_abort_cnt = 0;
6983 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6984 
6985 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
6986 				qla2x00_get_fw_version(vha);
6987 			if (ha->fce) {
6988 				ha->flags.fce_enabled = 1;
6989 				memset(ha->fce, 0,
6990 				    fce_calc_size(ha->fce_bufs));
6991 				rval = qla2x00_enable_fce_trace(vha,
6992 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
6993 				    &ha->fce_bufs);
6994 				if (rval) {
6995 					ql_log(ql_log_warn, vha, 0x8033,
6996 					    "Unable to reinitialize FCE "
6997 					    "(%d).\n", rval);
6998 					ha->flags.fce_enabled = 0;
6999 				}
7000 			}
7001 
7002 			if (ha->eft) {
7003 				memset(ha->eft, 0, EFT_SIZE);
7004 				rval = qla2x00_enable_eft_trace(vha,
7005 				    ha->eft_dma, EFT_NUM_BUFFERS);
7006 				if (rval) {
7007 					ql_log(ql_log_warn, vha, 0x8034,
7008 					    "Unable to reinitialize EFT "
7009 					    "(%d).\n", rval);
7010 				}
7011 			}
7012 		} else {	/* failed the ISP abort */
7013 			vha->flags.online = 1;
7014 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
7015 				if (ha->isp_abort_cnt == 0) {
7016 					ql_log(ql_log_fatal, vha, 0x8035,
7017 					    "ISP error recover failed - "
7018 					    "board disabled.\n");
7019 					/*
7020 					 * The next call disables the board
7021 					 * completely.
7022 					 */
7023 					qla2x00_abort_isp_cleanup(vha);
7024 					vha->flags.online = 0;
7025 					clear_bit(ISP_ABORT_RETRY,
7026 					    &vha->dpc_flags);
7027 					status = 0;
7028 				} else { /* schedule another ISP abort */
7029 					ha->isp_abort_cnt--;
7030 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
7031 					    "ISP abort - retry remaining %d.\n",
7032 					    ha->isp_abort_cnt);
7033 					status = 1;
7034 				}
7035 			} else {
7036 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
7037 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
7038 				    "ISP error recovery - retrying (%d) "
7039 				    "more times.\n", ha->isp_abort_cnt);
7040 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7041 				status = 1;
7042 			}
7043 		}
7044 
7045 	}
7046 
7047 	if (vha->hw->flags.port_isolated) {
7048 		qla2x00_abort_isp_cleanup(vha);
7049 		return status;
7050 	}
7051 
7052 	if (!status) {
7053 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
7054 		qla2x00_configure_hba(vha);
7055 		spin_lock_irqsave(&ha->vport_slock, flags);
7056 		list_for_each_entry(vp, &ha->vp_list, list) {
7057 			if (vp->vp_idx) {
7058 				atomic_inc(&vp->vref_count);
7059 				spin_unlock_irqrestore(&ha->vport_slock, flags);
7060 
7061 				qla2x00_vp_abort_isp(vp);
7062 
7063 				spin_lock_irqsave(&ha->vport_slock, flags);
7064 				atomic_dec(&vp->vref_count);
7065 			}
7066 		}
7067 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7068 
7069 		if (IS_QLA8031(ha)) {
7070 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
7071 			    "Setting back fcoe driver presence.\n");
7072 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
7073 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
7074 				    "Error while setting DRV-Presence.\n");
7075 		}
7076 	} else {
7077 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
7078 		       __func__);
7079 	}
7080 
7081 	return(status);
7082 }
7083 
7084 /*
7085 *  qla2x00_restart_isp
7086 *      restarts the ISP after a reset
7087 *
7088 * Input:
7089 *      ha = adapter block pointer.
7090 *
7091 * Returns:
7092 *      0 = success
7093 */
7094 static int
7095 qla2x00_restart_isp(scsi_qla_host_t *vha)
7096 {
7097 	int status;
7098 	struct qla_hw_data *ha = vha->hw;
7099 
7100 	/* If firmware needs to be loaded */
7101 	if (qla2x00_isp_firmware(vha)) {
7102 		vha->flags.online = 0;
7103 		status = ha->isp_ops->chip_diag(vha);
7104 		if (status)
7105 			return status;
7106 		status = qla2x00_setup_chip(vha);
7107 		if (status)
7108 			return status;
7109 	}
7110 
7111 	status = qla2x00_init_rings(vha);
7112 	if (status)
7113 		return status;
7114 
7115 	clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7116 	ha->flags.chip_reset_done = 1;
7117 
7118 	/* Initialize the queues in use */
7119 	qla25xx_init_queues(ha);
7120 
7121 	status = qla2x00_fw_ready(vha);
7122 	if (status) {
7123 		/* if no cable then assume it's good */
7124 		return vha->device_flags & DFLG_NO_CABLE ? 0 : status;
7125 	}
7126 
7127 	/* Issue a marker after FW becomes ready. */
7128 	qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
7129 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
7130 
7131 	return 0;
7132 }
7133 
7134 static int
7135 qla25xx_init_queues(struct qla_hw_data *ha)
7136 {
7137 	struct rsp_que *rsp = NULL;
7138 	struct req_que *req = NULL;
7139 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7140 	int ret = -1;
7141 	int i;
7142 
7143 	for (i = 1; i < ha->max_rsp_queues; i++) {
7144 		rsp = ha->rsp_q_map[i];
7145 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
7146 			rsp->options &= ~BIT_0;
7147 			ret = qla25xx_init_rsp_que(base_vha, rsp);
7148 			if (ret != QLA_SUCCESS)
7149 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
7150 				    "%s Rsp que: %d init failed.\n",
7151 				    __func__, rsp->id);
7152 			else
7153 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
7154 				    "%s Rsp que: %d inited.\n",
7155 				    __func__, rsp->id);
7156 		}
7157 	}
7158 	for (i = 1; i < ha->max_req_queues; i++) {
7159 		req = ha->req_q_map[i];
7160 		if (req && test_bit(i, ha->req_qid_map)) {
7161 			/* Clear outstanding commands array. */
7162 			req->options &= ~BIT_0;
7163 			ret = qla25xx_init_req_que(base_vha, req);
7164 			if (ret != QLA_SUCCESS)
7165 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
7166 				    "%s Req que: %d init failed.\n",
7167 				    __func__, req->id);
7168 			else
7169 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
7170 				    "%s Req que: %d inited.\n",
7171 				    __func__, req->id);
7172 		}
7173 	}
7174 	return ret;
7175 }
7176 
7177 /*
7178 * qla2x00_reset_adapter
7179 *      Reset adapter.
7180 *
7181 * Input:
7182 *      ha = adapter block pointer.
7183 */
7184 int
7185 qla2x00_reset_adapter(scsi_qla_host_t *vha)
7186 {
7187 	unsigned long flags = 0;
7188 	struct qla_hw_data *ha = vha->hw;
7189 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7190 
7191 	vha->flags.online = 0;
7192 	ha->isp_ops->disable_intrs(ha);
7193 
7194 	spin_lock_irqsave(&ha->hardware_lock, flags);
7195 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
7196 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7197 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
7198 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7199 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7200 
7201 	return QLA_SUCCESS;
7202 }
7203 
7204 int
7205 qla24xx_reset_adapter(scsi_qla_host_t *vha)
7206 {
7207 	unsigned long flags = 0;
7208 	struct qla_hw_data *ha = vha->hw;
7209 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
7210 
7211 	if (IS_P3P_TYPE(ha))
7212 		return QLA_SUCCESS;
7213 
7214 	vha->flags.online = 0;
7215 	ha->isp_ops->disable_intrs(ha);
7216 
7217 	spin_lock_irqsave(&ha->hardware_lock, flags);
7218 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
7219 	rd_reg_dword(&reg->hccr);
7220 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
7221 	rd_reg_dword(&reg->hccr);
7222 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7223 
7224 	if (IS_NOPOLLING_TYPE(ha))
7225 		ha->isp_ops->enable_intrs(ha);
7226 
7227 	return QLA_SUCCESS;
7228 }
7229 
7230 /* On sparc systems, obtain port and node WWN from firmware
7231  * properties.
7232  */
7233 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
7234 	struct nvram_24xx *nv)
7235 {
7236 #ifdef CONFIG_SPARC
7237 	struct qla_hw_data *ha = vha->hw;
7238 	struct pci_dev *pdev = ha->pdev;
7239 	struct device_node *dp = pci_device_to_OF_node(pdev);
7240 	const u8 *val;
7241 	int len;
7242 
7243 	val = of_get_property(dp, "port-wwn", &len);
7244 	if (val && len >= WWN_SIZE)
7245 		memcpy(nv->port_name, val, WWN_SIZE);
7246 
7247 	val = of_get_property(dp, "node-wwn", &len);
7248 	if (val && len >= WWN_SIZE)
7249 		memcpy(nv->node_name, val, WWN_SIZE);
7250 #endif
7251 }
7252 
7253 int
7254 qla24xx_nvram_config(scsi_qla_host_t *vha)
7255 {
7256 	int   rval;
7257 	struct init_cb_24xx *icb;
7258 	struct nvram_24xx *nv;
7259 	__le32 *dptr;
7260 	uint8_t  *dptr1, *dptr2;
7261 	uint32_t chksum;
7262 	uint16_t cnt;
7263 	struct qla_hw_data *ha = vha->hw;
7264 
7265 	rval = QLA_SUCCESS;
7266 	icb = (struct init_cb_24xx *)ha->init_cb;
7267 	nv = ha->nvram;
7268 
7269 	/* Determine NVRAM starting address. */
7270 	if (ha->port_no == 0) {
7271 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
7272 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
7273 	} else {
7274 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
7275 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
7276 	}
7277 
7278 	ha->nvram_size = sizeof(*nv);
7279 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7280 
7281 	/* Get VPD data into cache */
7282 	ha->vpd = ha->nvram + VPD_OFFSET;
7283 	ha->isp_ops->read_nvram(vha, ha->vpd,
7284 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
7285 
7286 	/* Get NVRAM data into cache and calculate checksum. */
7287 	dptr = (__force __le32 *)nv;
7288 	ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
7289 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7290 		chksum += le32_to_cpu(*dptr);
7291 
7292 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
7293 	    "Contents of NVRAM\n");
7294 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
7295 	    nv, ha->nvram_size);
7296 
7297 	/* Bad NVRAM data, set defaults parameters. */
7298 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
7299 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
7300 		/* Reset NVRAM data. */
7301 		ql_log(ql_log_warn, vha, 0x006b,
7302 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
7303 		    chksum, nv->id, nv->nvram_version);
7304 		ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
7305 		ql_log(ql_log_warn, vha, 0x006c,
7306 		    "Falling back to functioning (yet invalid -- WWPN) "
7307 		    "defaults.\n");
7308 
7309 		/*
7310 		 * Set default initialization control block.
7311 		 */
7312 		memset(nv, 0, ha->nvram_size);
7313 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7314 		nv->version = cpu_to_le16(ICB_VERSION);
7315 		nv->frame_payload_size = cpu_to_le16(2048);
7316 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7317 		nv->exchange_count = cpu_to_le16(0);
7318 		nv->hard_address = cpu_to_le16(124);
7319 		nv->port_name[0] = 0x21;
7320 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7321 		nv->port_name[2] = 0x00;
7322 		nv->port_name[3] = 0xe0;
7323 		nv->port_name[4] = 0x8b;
7324 		nv->port_name[5] = 0x1c;
7325 		nv->port_name[6] = 0x55;
7326 		nv->port_name[7] = 0x86;
7327 		nv->node_name[0] = 0x20;
7328 		nv->node_name[1] = 0x00;
7329 		nv->node_name[2] = 0x00;
7330 		nv->node_name[3] = 0xe0;
7331 		nv->node_name[4] = 0x8b;
7332 		nv->node_name[5] = 0x1c;
7333 		nv->node_name[6] = 0x55;
7334 		nv->node_name[7] = 0x86;
7335 		qla24xx_nvram_wwn_from_ofw(vha, nv);
7336 		nv->login_retry_count = cpu_to_le16(8);
7337 		nv->interrupt_delay_timer = cpu_to_le16(0);
7338 		nv->login_timeout = cpu_to_le16(0);
7339 		nv->firmware_options_1 =
7340 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7341 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7342 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7343 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7344 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7345 		nv->efi_parameters = cpu_to_le32(0);
7346 		nv->reset_delay = 5;
7347 		nv->max_luns_per_target = cpu_to_le16(128);
7348 		nv->port_down_retry_count = cpu_to_le16(30);
7349 		nv->link_down_timeout = cpu_to_le16(30);
7350 
7351 		rval = 1;
7352 	}
7353 
7354 	if (qla_tgt_mode_enabled(vha)) {
7355 		/* Don't enable full login after initial LIP */
7356 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7357 		/* Don't enable LIP full login for initiator */
7358 		nv->host_p &= cpu_to_le32(~BIT_10);
7359 	}
7360 
7361 	qlt_24xx_config_nvram_stage1(vha, nv);
7362 
7363 	/* Reset Initialization control block */
7364 	memset(icb, 0, ha->init_cb_size);
7365 
7366 	/* Copy 1st segment. */
7367 	dptr1 = (uint8_t *)icb;
7368 	dptr2 = (uint8_t *)&nv->version;
7369 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7370 	while (cnt--)
7371 		*dptr1++ = *dptr2++;
7372 
7373 	icb->login_retry_count = nv->login_retry_count;
7374 	icb->link_down_on_nos = nv->link_down_on_nos;
7375 
7376 	/* Copy 2nd segment. */
7377 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7378 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7379 	cnt = (uint8_t *)&icb->reserved_3 -
7380 	    (uint8_t *)&icb->interrupt_delay_timer;
7381 	while (cnt--)
7382 		*dptr1++ = *dptr2++;
7383 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
7384 	/*
7385 	 * Setup driver NVRAM options.
7386 	 */
7387 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7388 	    "QLA2462");
7389 
7390 	qlt_24xx_config_nvram_stage2(vha, icb);
7391 
7392 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7393 		/* Use alternate WWN? */
7394 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7395 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7396 	}
7397 
7398 	/* Prepare nodename */
7399 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7400 		/*
7401 		 * Firmware will apply the following mask if the nodename was
7402 		 * not provided.
7403 		 */
7404 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7405 		icb->node_name[0] &= 0xF0;
7406 	}
7407 
7408 	/* Set host adapter parameters. */
7409 	ha->flags.disable_risc_code_load = 0;
7410 	ha->flags.enable_lip_reset = 0;
7411 	ha->flags.enable_lip_full_login =
7412 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
7413 	ha->flags.enable_target_reset =
7414 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
7415 	ha->flags.enable_led_scheme = 0;
7416 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
7417 
7418 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7419 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7420 
7421 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
7422 	    sizeof(ha->fw_seriallink_options24));
7423 
7424 	/* save HBA serial number */
7425 	ha->serial0 = icb->port_name[5];
7426 	ha->serial1 = icb->port_name[6];
7427 	ha->serial2 = icb->port_name[7];
7428 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7429 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7430 
7431 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7432 
7433 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7434 
7435 	/* Set minimum login_timeout to 4 seconds. */
7436 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7437 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7438 	if (le16_to_cpu(nv->login_timeout) < 4)
7439 		nv->login_timeout = cpu_to_le16(4);
7440 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7441 
7442 	/* Set minimum RATOV to 100 tenths of a second. */
7443 	ha->r_a_tov = 100;
7444 
7445 	ha->loop_reset_delay = nv->reset_delay;
7446 
7447 	/* Link Down Timeout = 0:
7448 	 *
7449 	 * 	When Port Down timer expires we will start returning
7450 	 *	I/O's to OS with "DID_NO_CONNECT".
7451 	 *
7452 	 * Link Down Timeout != 0:
7453 	 *
7454 	 *	 The driver waits for the link to come up after link down
7455 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7456 	 */
7457 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7458 		ha->loop_down_abort_time =
7459 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7460 	} else {
7461 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7462 		ha->loop_down_abort_time =
7463 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7464 	}
7465 
7466 	/* Need enough time to try and get the port back. */
7467 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7468 	if (qlport_down_retry)
7469 		ha->port_down_retry_count = qlport_down_retry;
7470 
7471 	/* Set login_retry_count */
7472 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7473 	if (ha->port_down_retry_count ==
7474 	    le16_to_cpu(nv->port_down_retry_count) &&
7475 	    ha->port_down_retry_count > 3)
7476 		ha->login_retry_count = ha->port_down_retry_count;
7477 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
7478 		ha->login_retry_count = ha->port_down_retry_count;
7479 	if (ql2xloginretrycount)
7480 		ha->login_retry_count = ql2xloginretrycount;
7481 
7482 	/* N2N: driver will initiate Login instead of FW */
7483 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
7484 
7485 	/* Enable ZIO. */
7486 	if (!vha->flags.init_done) {
7487 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
7488 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
7489 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
7490 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
7491 	}
7492 	icb->firmware_options_2 &= cpu_to_le32(
7493 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
7494 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
7495 		ha->zio_mode = QLA_ZIO_MODE_6;
7496 
7497 		ql_log(ql_log_info, vha, 0x006f,
7498 		    "ZIO mode %d enabled; timer delay (%d us).\n",
7499 		    ha->zio_mode, ha->zio_timer * 100);
7500 
7501 		icb->firmware_options_2 |= cpu_to_le32(
7502 		    (uint32_t)ha->zio_mode);
7503 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
7504 	}
7505 
7506 	if (rval) {
7507 		ql_log(ql_log_warn, vha, 0x0070,
7508 		    "NVRAM configuration failed.\n");
7509 	}
7510 	return (rval);
7511 }
7512 
7513 static void
7514 qla27xx_print_image(struct scsi_qla_host *vha, char *name,
7515     struct qla27xx_image_status *image_status)
7516 {
7517 	ql_dbg(ql_dbg_init, vha, 0x018b,
7518 	    "%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
7519 	    name, "status",
7520 	    image_status->image_status_mask,
7521 	    le16_to_cpu(image_status->generation),
7522 	    image_status->ver_major,
7523 	    image_status->ver_minor,
7524 	    image_status->bitmap,
7525 	    le32_to_cpu(image_status->checksum),
7526 	    le32_to_cpu(image_status->signature));
7527 }
7528 
7529 static bool
7530 qla28xx_check_aux_image_status_signature(
7531     struct qla27xx_image_status *image_status)
7532 {
7533 	ulong signature = le32_to_cpu(image_status->signature);
7534 
7535 	return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
7536 }
7537 
7538 static bool
7539 qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
7540 {
7541 	ulong signature = le32_to_cpu(image_status->signature);
7542 
7543 	return
7544 	    signature != QLA27XX_IMG_STATUS_SIGN &&
7545 	    signature != QLA28XX_IMG_STATUS_SIGN;
7546 }
7547 
7548 static ulong
7549 qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
7550 {
7551 	__le32 *p = (__force __le32 *)image_status;
7552 	uint n = sizeof(*image_status) / sizeof(*p);
7553 	uint32_t sum = 0;
7554 
7555 	for ( ; n--; p++)
7556 		sum += le32_to_cpup(p);
7557 
7558 	return sum;
7559 }
7560 
7561 static inline uint
7562 qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
7563 {
7564 	return aux->bitmap & bitmask ?
7565 	    QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
7566 }
7567 
7568 static void
7569 qla28xx_component_status(
7570     struct active_regions *active_regions, struct qla27xx_image_status *aux)
7571 {
7572 	active_regions->aux.board_config =
7573 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
7574 
7575 	active_regions->aux.vpd_nvram =
7576 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
7577 
7578 	active_regions->aux.npiv_config_0_1 =
7579 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
7580 
7581 	active_regions->aux.npiv_config_2_3 =
7582 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
7583 }
7584 
7585 static int
7586 qla27xx_compare_image_generation(
7587     struct qla27xx_image_status *pri_image_status,
7588     struct qla27xx_image_status *sec_image_status)
7589 {
7590 	/* calculate generation delta as uint16 (this accounts for wrap) */
7591 	int16_t delta =
7592 	    le16_to_cpu(pri_image_status->generation) -
7593 	    le16_to_cpu(sec_image_status->generation);
7594 
7595 	ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
7596 
7597 	return delta;
7598 }
7599 
7600 void
7601 qla28xx_get_aux_images(
7602 	struct scsi_qla_host *vha, struct active_regions *active_regions)
7603 {
7604 	struct qla_hw_data *ha = vha->hw;
7605 	struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
7606 	bool valid_pri_image = false, valid_sec_image = false;
7607 	bool active_pri_image = false, active_sec_image = false;
7608 
7609 	if (!ha->flt_region_aux_img_status_pri) {
7610 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
7611 		goto check_sec_image;
7612 	}
7613 
7614 	qla24xx_read_flash_data(vha, (uint32_t *)&pri_aux_image_status,
7615 	    ha->flt_region_aux_img_status_pri,
7616 	    sizeof(pri_aux_image_status) >> 2);
7617 	qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
7618 
7619 	if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
7620 		ql_dbg(ql_dbg_init, vha, 0x018b,
7621 		    "Primary aux image signature (%#x) not valid\n",
7622 		    le32_to_cpu(pri_aux_image_status.signature));
7623 		goto check_sec_image;
7624 	}
7625 
7626 	if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
7627 		ql_dbg(ql_dbg_init, vha, 0x018c,
7628 		    "Primary aux image checksum failed\n");
7629 		goto check_sec_image;
7630 	}
7631 
7632 	valid_pri_image = true;
7633 
7634 	if (pri_aux_image_status.image_status_mask & 1) {
7635 		ql_dbg(ql_dbg_init, vha, 0x018d,
7636 		    "Primary aux image is active\n");
7637 		active_pri_image = true;
7638 	}
7639 
7640 check_sec_image:
7641 	if (!ha->flt_region_aux_img_status_sec) {
7642 		ql_dbg(ql_dbg_init, vha, 0x018a,
7643 		    "Secondary aux image not addressed\n");
7644 		goto check_valid_image;
7645 	}
7646 
7647 	qla24xx_read_flash_data(vha, (uint32_t *)&sec_aux_image_status,
7648 	    ha->flt_region_aux_img_status_sec,
7649 	    sizeof(sec_aux_image_status) >> 2);
7650 	qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
7651 
7652 	if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
7653 		ql_dbg(ql_dbg_init, vha, 0x018b,
7654 		    "Secondary aux image signature (%#x) not valid\n",
7655 		    le32_to_cpu(sec_aux_image_status.signature));
7656 		goto check_valid_image;
7657 	}
7658 
7659 	if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
7660 		ql_dbg(ql_dbg_init, vha, 0x018c,
7661 		    "Secondary aux image checksum failed\n");
7662 		goto check_valid_image;
7663 	}
7664 
7665 	valid_sec_image = true;
7666 
7667 	if (sec_aux_image_status.image_status_mask & 1) {
7668 		ql_dbg(ql_dbg_init, vha, 0x018d,
7669 		    "Secondary aux image is active\n");
7670 		active_sec_image = true;
7671 	}
7672 
7673 check_valid_image:
7674 	if (valid_pri_image && active_pri_image &&
7675 	    valid_sec_image && active_sec_image) {
7676 		if (qla27xx_compare_image_generation(&pri_aux_image_status,
7677 		    &sec_aux_image_status) >= 0) {
7678 			qla28xx_component_status(active_regions,
7679 			    &pri_aux_image_status);
7680 		} else {
7681 			qla28xx_component_status(active_regions,
7682 			    &sec_aux_image_status);
7683 		}
7684 	} else if (valid_pri_image && active_pri_image) {
7685 		qla28xx_component_status(active_regions, &pri_aux_image_status);
7686 	} else if (valid_sec_image && active_sec_image) {
7687 		qla28xx_component_status(active_regions, &sec_aux_image_status);
7688 	}
7689 
7690 	ql_dbg(ql_dbg_init, vha, 0x018f,
7691 	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u\n",
7692 	    active_regions->aux.board_config,
7693 	    active_regions->aux.vpd_nvram,
7694 	    active_regions->aux.npiv_config_0_1,
7695 	    active_regions->aux.npiv_config_2_3);
7696 }
7697 
7698 void
7699 qla27xx_get_active_image(struct scsi_qla_host *vha,
7700     struct active_regions *active_regions)
7701 {
7702 	struct qla_hw_data *ha = vha->hw;
7703 	struct qla27xx_image_status pri_image_status, sec_image_status;
7704 	bool valid_pri_image = false, valid_sec_image = false;
7705 	bool active_pri_image = false, active_sec_image = false;
7706 
7707 	if (!ha->flt_region_img_status_pri) {
7708 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
7709 		goto check_sec_image;
7710 	}
7711 
7712 	if (qla24xx_read_flash_data(vha, (uint32_t *)&pri_image_status,
7713 	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
7714 	    QLA_SUCCESS) {
7715 		WARN_ON_ONCE(true);
7716 		goto check_sec_image;
7717 	}
7718 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
7719 
7720 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
7721 		ql_dbg(ql_dbg_init, vha, 0x018b,
7722 		    "Primary image signature (%#x) not valid\n",
7723 		    le32_to_cpu(pri_image_status.signature));
7724 		goto check_sec_image;
7725 	}
7726 
7727 	if (qla27xx_image_status_checksum(&pri_image_status)) {
7728 		ql_dbg(ql_dbg_init, vha, 0x018c,
7729 		    "Primary image checksum failed\n");
7730 		goto check_sec_image;
7731 	}
7732 
7733 	valid_pri_image = true;
7734 
7735 	if (pri_image_status.image_status_mask & 1) {
7736 		ql_dbg(ql_dbg_init, vha, 0x018d,
7737 		    "Primary image is active\n");
7738 		active_pri_image = true;
7739 	}
7740 
7741 check_sec_image:
7742 	if (!ha->flt_region_img_status_sec) {
7743 		ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
7744 		goto check_valid_image;
7745 	}
7746 
7747 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
7748 	    ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
7749 	qla27xx_print_image(vha, "Secondary image", &sec_image_status);
7750 
7751 	if (qla27xx_check_image_status_signature(&sec_image_status)) {
7752 		ql_dbg(ql_dbg_init, vha, 0x018b,
7753 		    "Secondary image signature (%#x) not valid\n",
7754 		    le32_to_cpu(sec_image_status.signature));
7755 		goto check_valid_image;
7756 	}
7757 
7758 	if (qla27xx_image_status_checksum(&sec_image_status)) {
7759 		ql_dbg(ql_dbg_init, vha, 0x018c,
7760 		    "Secondary image checksum failed\n");
7761 		goto check_valid_image;
7762 	}
7763 
7764 	valid_sec_image = true;
7765 
7766 	if (sec_image_status.image_status_mask & 1) {
7767 		ql_dbg(ql_dbg_init, vha, 0x018d,
7768 		    "Secondary image is active\n");
7769 		active_sec_image = true;
7770 	}
7771 
7772 check_valid_image:
7773 	if (valid_pri_image && active_pri_image)
7774 		active_regions->global = QLA27XX_PRIMARY_IMAGE;
7775 
7776 	if (valid_sec_image && active_sec_image) {
7777 		if (!active_regions->global ||
7778 		    qla27xx_compare_image_generation(
7779 			&pri_image_status, &sec_image_status) < 0) {
7780 			active_regions->global = QLA27XX_SECONDARY_IMAGE;
7781 		}
7782 	}
7783 
7784 	ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
7785 	    active_regions->global == QLA27XX_DEFAULT_IMAGE ?
7786 		"default (boot/fw)" :
7787 	    active_regions->global == QLA27XX_PRIMARY_IMAGE ?
7788 		"primary" :
7789 	    active_regions->global == QLA27XX_SECONDARY_IMAGE ?
7790 		"secondary" : "invalid",
7791 	    active_regions->global);
7792 }
7793 
7794 bool qla24xx_risc_firmware_invalid(uint32_t *dword)
7795 {
7796 	return
7797 	    !(dword[4] | dword[5] | dword[6] | dword[7]) ||
7798 	    !(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
7799 }
7800 
7801 static int
7802 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
7803     uint32_t faddr)
7804 {
7805 	int rval;
7806 	uint templates, segments, fragment;
7807 	ulong i;
7808 	uint j;
7809 	ulong dlen;
7810 	uint32_t *dcode;
7811 	uint32_t risc_addr, risc_size, risc_attr = 0;
7812 	struct qla_hw_data *ha = vha->hw;
7813 	struct req_que *req = ha->req_q_map[0];
7814 	struct fwdt *fwdt = ha->fwdt;
7815 
7816 	ql_dbg(ql_dbg_init, vha, 0x008b,
7817 	    "FW: Loading firmware from flash (%x).\n", faddr);
7818 
7819 	dcode = (uint32_t *)req->ring;
7820 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
7821 	if (qla24xx_risc_firmware_invalid(dcode)) {
7822 		ql_log(ql_log_fatal, vha, 0x008c,
7823 		    "Unable to verify the integrity of flash firmware "
7824 		    "image.\n");
7825 		ql_log(ql_log_fatal, vha, 0x008d,
7826 		    "Firmware data: %08x %08x %08x %08x.\n",
7827 		    dcode[0], dcode[1], dcode[2], dcode[3]);
7828 
7829 		return QLA_FUNCTION_FAILED;
7830 	}
7831 
7832 	dcode = (uint32_t *)req->ring;
7833 	*srisc_addr = 0;
7834 	segments = FA_RISC_CODE_SEGMENTS;
7835 	for (j = 0; j < segments; j++) {
7836 		ql_dbg(ql_dbg_init, vha, 0x008d,
7837 		    "-> Loading segment %u...\n", j);
7838 		qla24xx_read_flash_data(vha, dcode, faddr, 10);
7839 		risc_addr = be32_to_cpu((__force __be32)dcode[2]);
7840 		risc_size = be32_to_cpu((__force __be32)dcode[3]);
7841 		if (!*srisc_addr) {
7842 			*srisc_addr = risc_addr;
7843 			risc_attr = be32_to_cpu((__force __be32)dcode[9]);
7844 		}
7845 
7846 		dlen = ha->fw_transfer_size >> 2;
7847 		for (fragment = 0; risc_size; fragment++) {
7848 			if (dlen > risc_size)
7849 				dlen = risc_size;
7850 
7851 			ql_dbg(ql_dbg_init, vha, 0x008e,
7852 			    "-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
7853 			    fragment, risc_addr, faddr, dlen);
7854 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
7855 			for (i = 0; i < dlen; i++)
7856 				dcode[i] = swab32(dcode[i]);
7857 
7858 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
7859 			if (rval) {
7860 				ql_log(ql_log_fatal, vha, 0x008f,
7861 				    "-> Failed load firmware fragment %u.\n",
7862 				    fragment);
7863 				return QLA_FUNCTION_FAILED;
7864 			}
7865 
7866 			faddr += dlen;
7867 			risc_addr += dlen;
7868 			risc_size -= dlen;
7869 		}
7870 	}
7871 
7872 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
7873 		return QLA_SUCCESS;
7874 
7875 	templates = (risc_attr & BIT_9) ? 2 : 1;
7876 	ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
7877 	for (j = 0; j < templates; j++, fwdt++) {
7878 		vfree(fwdt->template);
7879 		fwdt->template = NULL;
7880 		fwdt->length = 0;
7881 
7882 		dcode = (uint32_t *)req->ring;
7883 		qla24xx_read_flash_data(vha, dcode, faddr, 7);
7884 		risc_size = be32_to_cpu((__force __be32)dcode[2]);
7885 		ql_dbg(ql_dbg_init, vha, 0x0161,
7886 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
7887 		    j, faddr, risc_size);
7888 		if (!risc_size || !~risc_size) {
7889 			ql_dbg(ql_dbg_init, vha, 0x0162,
7890 			    "-> fwdt%u failed to read array\n", j);
7891 			goto failed;
7892 		}
7893 
7894 		/* skip header and ignore checksum */
7895 		faddr += 7;
7896 		risc_size -= 8;
7897 
7898 		ql_dbg(ql_dbg_init, vha, 0x0163,
7899 		    "-> fwdt%u template allocate template %#x words...\n",
7900 		    j, risc_size);
7901 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
7902 		if (!fwdt->template) {
7903 			ql_log(ql_log_warn, vha, 0x0164,
7904 			    "-> fwdt%u failed allocate template.\n", j);
7905 			goto failed;
7906 		}
7907 
7908 		dcode = fwdt->template;
7909 		qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
7910 
7911 		if (!qla27xx_fwdt_template_valid(dcode)) {
7912 			ql_log(ql_log_warn, vha, 0x0165,
7913 			    "-> fwdt%u failed template validate\n", j);
7914 			goto failed;
7915 		}
7916 
7917 		dlen = qla27xx_fwdt_template_size(dcode);
7918 		ql_dbg(ql_dbg_init, vha, 0x0166,
7919 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
7920 		    j, dlen, dlen / sizeof(*dcode));
7921 		if (dlen > risc_size * sizeof(*dcode)) {
7922 			ql_log(ql_log_warn, vha, 0x0167,
7923 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
7924 			    j, dlen - risc_size * sizeof(*dcode));
7925 			goto failed;
7926 		}
7927 
7928 		fwdt->length = dlen;
7929 		ql_dbg(ql_dbg_init, vha, 0x0168,
7930 		    "-> fwdt%u loaded template ok\n", j);
7931 
7932 		faddr += risc_size + 1;
7933 	}
7934 
7935 	return QLA_SUCCESS;
7936 
7937 failed:
7938 	vfree(fwdt->template);
7939 	fwdt->template = NULL;
7940 	fwdt->length = 0;
7941 
7942 	return QLA_SUCCESS;
7943 }
7944 
7945 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
7946 
7947 int
7948 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
7949 {
7950 	int	rval;
7951 	int	i, fragment;
7952 	uint16_t *wcode;
7953 	__be16	 *fwcode;
7954 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
7955 	struct fw_blob *blob;
7956 	struct qla_hw_data *ha = vha->hw;
7957 	struct req_que *req = ha->req_q_map[0];
7958 
7959 	/* Load firmware blob. */
7960 	blob = qla2x00_request_firmware(vha);
7961 	if (!blob) {
7962 		ql_log(ql_log_info, vha, 0x0083,
7963 		    "Firmware image unavailable.\n");
7964 		ql_log(ql_log_info, vha, 0x0084,
7965 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
7966 		return QLA_FUNCTION_FAILED;
7967 	}
7968 
7969 	rval = QLA_SUCCESS;
7970 
7971 	wcode = (uint16_t *)req->ring;
7972 	*srisc_addr = 0;
7973 	fwcode = (__force __be16 *)blob->fw->data;
7974 	fwclen = 0;
7975 
7976 	/* Validate firmware image by checking version. */
7977 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
7978 		ql_log(ql_log_fatal, vha, 0x0085,
7979 		    "Unable to verify integrity of firmware image (%zd).\n",
7980 		    blob->fw->size);
7981 		goto fail_fw_integrity;
7982 	}
7983 	for (i = 0; i < 4; i++)
7984 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
7985 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
7986 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
7987 		wcode[2] == 0 && wcode[3] == 0)) {
7988 		ql_log(ql_log_fatal, vha, 0x0086,
7989 		    "Unable to verify integrity of firmware image.\n");
7990 		ql_log(ql_log_fatal, vha, 0x0087,
7991 		    "Firmware data: %04x %04x %04x %04x.\n",
7992 		    wcode[0], wcode[1], wcode[2], wcode[3]);
7993 		goto fail_fw_integrity;
7994 	}
7995 
7996 	seg = blob->segs;
7997 	while (*seg && rval == QLA_SUCCESS) {
7998 		risc_addr = *seg;
7999 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
8000 		risc_size = be16_to_cpu(fwcode[3]);
8001 
8002 		/* Validate firmware image size. */
8003 		fwclen += risc_size * sizeof(uint16_t);
8004 		if (blob->fw->size < fwclen) {
8005 			ql_log(ql_log_fatal, vha, 0x0088,
8006 			    "Unable to verify integrity of firmware image "
8007 			    "(%zd).\n", blob->fw->size);
8008 			goto fail_fw_integrity;
8009 		}
8010 
8011 		fragment = 0;
8012 		while (risc_size > 0 && rval == QLA_SUCCESS) {
8013 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
8014 			if (wlen > risc_size)
8015 				wlen = risc_size;
8016 			ql_dbg(ql_dbg_init, vha, 0x0089,
8017 			    "Loading risc segment@ risc addr %x number of "
8018 			    "words 0x%x.\n", risc_addr, wlen);
8019 
8020 			for (i = 0; i < wlen; i++)
8021 				wcode[i] = swab16((__force u32)fwcode[i]);
8022 
8023 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
8024 			    wlen);
8025 			if (rval) {
8026 				ql_log(ql_log_fatal, vha, 0x008a,
8027 				    "Failed to load segment %d of firmware.\n",
8028 				    fragment);
8029 				break;
8030 			}
8031 
8032 			fwcode += wlen;
8033 			risc_addr += wlen;
8034 			risc_size -= wlen;
8035 			fragment++;
8036 		}
8037 
8038 		/* Next segment. */
8039 		seg++;
8040 	}
8041 	return rval;
8042 
8043 fail_fw_integrity:
8044 	return QLA_FUNCTION_FAILED;
8045 }
8046 
8047 static int
8048 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8049 {
8050 	int	rval;
8051 	uint templates, segments, fragment;
8052 	uint32_t *dcode;
8053 	ulong dlen;
8054 	uint32_t risc_addr, risc_size, risc_attr = 0;
8055 	ulong i;
8056 	uint j;
8057 	struct fw_blob *blob;
8058 	__be32 *fwcode;
8059 	struct qla_hw_data *ha = vha->hw;
8060 	struct req_que *req = ha->req_q_map[0];
8061 	struct fwdt *fwdt = ha->fwdt;
8062 
8063 	ql_dbg(ql_dbg_init, vha, 0x0090,
8064 	    "-> FW: Loading via request-firmware.\n");
8065 
8066 	blob = qla2x00_request_firmware(vha);
8067 	if (!blob) {
8068 		ql_log(ql_log_warn, vha, 0x0092,
8069 		    "-> Firmware file not found.\n");
8070 
8071 		return QLA_FUNCTION_FAILED;
8072 	}
8073 
8074 	fwcode = (__force __be32 *)blob->fw->data;
8075 	dcode = (__force uint32_t *)fwcode;
8076 	if (qla24xx_risc_firmware_invalid(dcode)) {
8077 		ql_log(ql_log_fatal, vha, 0x0093,
8078 		    "Unable to verify integrity of firmware image (%zd).\n",
8079 		    blob->fw->size);
8080 		ql_log(ql_log_fatal, vha, 0x0095,
8081 		    "Firmware data: %08x %08x %08x %08x.\n",
8082 		    dcode[0], dcode[1], dcode[2], dcode[3]);
8083 		return QLA_FUNCTION_FAILED;
8084 	}
8085 
8086 	dcode = (uint32_t *)req->ring;
8087 	*srisc_addr = 0;
8088 	segments = FA_RISC_CODE_SEGMENTS;
8089 	for (j = 0; j < segments; j++) {
8090 		ql_dbg(ql_dbg_init, vha, 0x0096,
8091 		    "-> Loading segment %u...\n", j);
8092 		risc_addr = be32_to_cpu(fwcode[2]);
8093 		risc_size = be32_to_cpu(fwcode[3]);
8094 
8095 		if (!*srisc_addr) {
8096 			*srisc_addr = risc_addr;
8097 			risc_attr = be32_to_cpu(fwcode[9]);
8098 		}
8099 
8100 		dlen = ha->fw_transfer_size >> 2;
8101 		for (fragment = 0; risc_size; fragment++) {
8102 			if (dlen > risc_size)
8103 				dlen = risc_size;
8104 
8105 			ql_dbg(ql_dbg_init, vha, 0x0097,
8106 			    "-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
8107 			    fragment, risc_addr,
8108 			    (uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
8109 			    dlen);
8110 
8111 			for (i = 0; i < dlen; i++)
8112 				dcode[i] = swab32((__force u32)fwcode[i]);
8113 
8114 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8115 			if (rval) {
8116 				ql_log(ql_log_fatal, vha, 0x0098,
8117 				    "-> Failed load firmware fragment %u.\n",
8118 				    fragment);
8119 				return QLA_FUNCTION_FAILED;
8120 			}
8121 
8122 			fwcode += dlen;
8123 			risc_addr += dlen;
8124 			risc_size -= dlen;
8125 		}
8126 	}
8127 
8128 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8129 		return QLA_SUCCESS;
8130 
8131 	templates = (risc_attr & BIT_9) ? 2 : 1;
8132 	ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
8133 	for (j = 0; j < templates; j++, fwdt++) {
8134 		vfree(fwdt->template);
8135 		fwdt->template = NULL;
8136 		fwdt->length = 0;
8137 
8138 		risc_size = be32_to_cpu(fwcode[2]);
8139 		ql_dbg(ql_dbg_init, vha, 0x0171,
8140 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8141 		    j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
8142 		    risc_size);
8143 		if (!risc_size || !~risc_size) {
8144 			ql_dbg(ql_dbg_init, vha, 0x0172,
8145 			    "-> fwdt%u failed to read array\n", j);
8146 			goto failed;
8147 		}
8148 
8149 		/* skip header and ignore checksum */
8150 		fwcode += 7;
8151 		risc_size -= 8;
8152 
8153 		ql_dbg(ql_dbg_init, vha, 0x0173,
8154 		    "-> fwdt%u template allocate template %#x words...\n",
8155 		    j, risc_size);
8156 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8157 		if (!fwdt->template) {
8158 			ql_log(ql_log_warn, vha, 0x0174,
8159 			    "-> fwdt%u failed allocate template.\n", j);
8160 			goto failed;
8161 		}
8162 
8163 		dcode = fwdt->template;
8164 		for (i = 0; i < risc_size; i++)
8165 			dcode[i] = (__force u32)fwcode[i];
8166 
8167 		if (!qla27xx_fwdt_template_valid(dcode)) {
8168 			ql_log(ql_log_warn, vha, 0x0175,
8169 			    "-> fwdt%u failed template validate\n", j);
8170 			goto failed;
8171 		}
8172 
8173 		dlen = qla27xx_fwdt_template_size(dcode);
8174 		ql_dbg(ql_dbg_init, vha, 0x0176,
8175 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8176 		    j, dlen, dlen / sizeof(*dcode));
8177 		if (dlen > risc_size * sizeof(*dcode)) {
8178 			ql_log(ql_log_warn, vha, 0x0177,
8179 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8180 			    j, dlen - risc_size * sizeof(*dcode));
8181 			goto failed;
8182 		}
8183 
8184 		fwdt->length = dlen;
8185 		ql_dbg(ql_dbg_init, vha, 0x0178,
8186 		    "-> fwdt%u loaded template ok\n", j);
8187 
8188 		fwcode += risc_size + 1;
8189 	}
8190 
8191 	return QLA_SUCCESS;
8192 
8193 failed:
8194 	vfree(fwdt->template);
8195 	fwdt->template = NULL;
8196 	fwdt->length = 0;
8197 
8198 	return QLA_SUCCESS;
8199 }
8200 
8201 int
8202 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8203 {
8204 	int rval;
8205 
8206 	if (ql2xfwloadbin == 1)
8207 		return qla81xx_load_risc(vha, srisc_addr);
8208 
8209 	/*
8210 	 * FW Load priority:
8211 	 * 1) Firmware via request-firmware interface (.bin file).
8212 	 * 2) Firmware residing in flash.
8213 	 */
8214 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8215 	if (rval == QLA_SUCCESS)
8216 		return rval;
8217 
8218 	return qla24xx_load_risc_flash(vha, srisc_addr,
8219 	    vha->hw->flt_region_fw);
8220 }
8221 
8222 int
8223 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8224 {
8225 	int rval;
8226 	struct qla_hw_data *ha = vha->hw;
8227 	struct active_regions active_regions = { };
8228 
8229 	if (ql2xfwloadbin == 2)
8230 		goto try_blob_fw;
8231 
8232 	/* FW Load priority:
8233 	 * 1) Firmware residing in flash.
8234 	 * 2) Firmware via request-firmware interface (.bin file).
8235 	 * 3) Golden-Firmware residing in flash -- (limited operation).
8236 	 */
8237 
8238 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8239 		goto try_primary_fw;
8240 
8241 	qla27xx_get_active_image(vha, &active_regions);
8242 
8243 	if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
8244 		goto try_primary_fw;
8245 
8246 	ql_dbg(ql_dbg_init, vha, 0x008b,
8247 	    "Loading secondary firmware image.\n");
8248 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
8249 	if (!rval)
8250 		return rval;
8251 
8252 try_primary_fw:
8253 	ql_dbg(ql_dbg_init, vha, 0x008b,
8254 	    "Loading primary firmware image.\n");
8255 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
8256 	if (!rval)
8257 		return rval;
8258 
8259 try_blob_fw:
8260 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8261 	if (!rval || !ha->flt_region_gold_fw)
8262 		return rval;
8263 
8264 	ql_log(ql_log_info, vha, 0x0099,
8265 	    "Attempting to fallback to golden firmware.\n");
8266 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
8267 	if (rval)
8268 		return rval;
8269 
8270 	ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
8271 	ha->flags.running_gold_fw = 1;
8272 	return rval;
8273 }
8274 
8275 void
8276 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
8277 {
8278 	int ret, retries;
8279 	struct qla_hw_data *ha = vha->hw;
8280 
8281 	if (ha->flags.pci_channel_io_perm_failure)
8282 		return;
8283 	if (!IS_FWI2_CAPABLE(ha))
8284 		return;
8285 	if (!ha->fw_major_version)
8286 		return;
8287 	if (!ha->flags.fw_started)
8288 		return;
8289 
8290 	ret = qla2x00_stop_firmware(vha);
8291 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
8292 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
8293 		ha->isp_ops->reset_chip(vha);
8294 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
8295 			continue;
8296 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
8297 			continue;
8298 		ql_log(ql_log_info, vha, 0x8015,
8299 		    "Attempting retry of stop-firmware command.\n");
8300 		ret = qla2x00_stop_firmware(vha);
8301 	}
8302 
8303 	QLA_FW_STOPPED(ha);
8304 	ha->flags.fw_init_done = 0;
8305 }
8306 
8307 int
8308 qla24xx_configure_vhba(scsi_qla_host_t *vha)
8309 {
8310 	int rval = QLA_SUCCESS;
8311 	int rval2;
8312 	uint16_t mb[MAILBOX_REGISTER_COUNT];
8313 	struct qla_hw_data *ha = vha->hw;
8314 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8315 
8316 	if (!vha->vp_idx)
8317 		return -EINVAL;
8318 
8319 	rval = qla2x00_fw_ready(base_vha);
8320 
8321 	if (rval == QLA_SUCCESS) {
8322 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8323 		qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8324 	}
8325 
8326 	vha->flags.management_server_logged_in = 0;
8327 
8328 	/* Login to SNS first */
8329 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
8330 	    BIT_1);
8331 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
8332 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
8333 			ql_dbg(ql_dbg_init, vha, 0x0120,
8334 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
8335 			    NPH_SNS, rval2);
8336 		else
8337 			ql_dbg(ql_dbg_init, vha, 0x0103,
8338 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
8339 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
8340 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
8341 		return (QLA_FUNCTION_FAILED);
8342 	}
8343 
8344 	atomic_set(&vha->loop_down_timer, 0);
8345 	atomic_set(&vha->loop_state, LOOP_UP);
8346 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8347 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
8348 	rval = qla2x00_loop_resync(base_vha);
8349 
8350 	return rval;
8351 }
8352 
8353 /* 84XX Support **************************************************************/
8354 
8355 static LIST_HEAD(qla_cs84xx_list);
8356 static DEFINE_MUTEX(qla_cs84xx_mutex);
8357 
8358 static struct qla_chip_state_84xx *
8359 qla84xx_get_chip(struct scsi_qla_host *vha)
8360 {
8361 	struct qla_chip_state_84xx *cs84xx;
8362 	struct qla_hw_data *ha = vha->hw;
8363 
8364 	mutex_lock(&qla_cs84xx_mutex);
8365 
8366 	/* Find any shared 84xx chip. */
8367 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
8368 		if (cs84xx->bus == ha->pdev->bus) {
8369 			kref_get(&cs84xx->kref);
8370 			goto done;
8371 		}
8372 	}
8373 
8374 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
8375 	if (!cs84xx)
8376 		goto done;
8377 
8378 	kref_init(&cs84xx->kref);
8379 	spin_lock_init(&cs84xx->access_lock);
8380 	mutex_init(&cs84xx->fw_update_mutex);
8381 	cs84xx->bus = ha->pdev->bus;
8382 
8383 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
8384 done:
8385 	mutex_unlock(&qla_cs84xx_mutex);
8386 	return cs84xx;
8387 }
8388 
8389 static void
8390 __qla84xx_chip_release(struct kref *kref)
8391 {
8392 	struct qla_chip_state_84xx *cs84xx =
8393 	    container_of(kref, struct qla_chip_state_84xx, kref);
8394 
8395 	mutex_lock(&qla_cs84xx_mutex);
8396 	list_del(&cs84xx->list);
8397 	mutex_unlock(&qla_cs84xx_mutex);
8398 	kfree(cs84xx);
8399 }
8400 
8401 void
8402 qla84xx_put_chip(struct scsi_qla_host *vha)
8403 {
8404 	struct qla_hw_data *ha = vha->hw;
8405 
8406 	if (ha->cs84xx)
8407 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
8408 }
8409 
8410 static int
8411 qla84xx_init_chip(scsi_qla_host_t *vha)
8412 {
8413 	int rval;
8414 	uint16_t status[2];
8415 	struct qla_hw_data *ha = vha->hw;
8416 
8417 	mutex_lock(&ha->cs84xx->fw_update_mutex);
8418 
8419 	rval = qla84xx_verify_chip(vha, status);
8420 
8421 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
8422 
8423 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
8424 	    QLA_SUCCESS;
8425 }
8426 
8427 /* 81XX Support **************************************************************/
8428 
8429 int
8430 qla81xx_nvram_config(scsi_qla_host_t *vha)
8431 {
8432 	int   rval;
8433 	struct init_cb_81xx *icb;
8434 	struct nvram_81xx *nv;
8435 	__le32 *dptr;
8436 	uint8_t  *dptr1, *dptr2;
8437 	uint32_t chksum;
8438 	uint16_t cnt;
8439 	struct qla_hw_data *ha = vha->hw;
8440 	uint32_t faddr;
8441 	struct active_regions active_regions = { };
8442 
8443 	rval = QLA_SUCCESS;
8444 	icb = (struct init_cb_81xx *)ha->init_cb;
8445 	nv = ha->nvram;
8446 
8447 	/* Determine NVRAM starting address. */
8448 	ha->nvram_size = sizeof(*nv);
8449 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
8450 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
8451 		ha->vpd_size = FA_VPD_SIZE_82XX;
8452 
8453 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
8454 		qla28xx_get_aux_images(vha, &active_regions);
8455 
8456 	/* Get VPD data into cache */
8457 	ha->vpd = ha->nvram + VPD_OFFSET;
8458 
8459 	faddr = ha->flt_region_vpd;
8460 	if (IS_QLA28XX(ha)) {
8461 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8462 			faddr = ha->flt_region_vpd_sec;
8463 		ql_dbg(ql_dbg_init, vha, 0x0110,
8464 		    "Loading %s nvram image.\n",
8465 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8466 		    "primary" : "secondary");
8467 	}
8468 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
8469 
8470 	/* Get NVRAM data into cache and calculate checksum. */
8471 	faddr = ha->flt_region_nvram;
8472 	if (IS_QLA28XX(ha)) {
8473 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8474 			faddr = ha->flt_region_nvram_sec;
8475 	}
8476 	ql_dbg(ql_dbg_init, vha, 0x0110,
8477 	    "Loading %s nvram image.\n",
8478 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8479 	    "primary" : "secondary");
8480 	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
8481 
8482 	dptr = (__force __le32 *)nv;
8483 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
8484 		chksum += le32_to_cpu(*dptr);
8485 
8486 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
8487 	    "Contents of NVRAM:\n");
8488 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
8489 	    nv, ha->nvram_size);
8490 
8491 	/* Bad NVRAM data, set defaults parameters. */
8492 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
8493 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
8494 		/* Reset NVRAM data. */
8495 		ql_log(ql_log_info, vha, 0x0073,
8496 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
8497 		    chksum, nv->id, le16_to_cpu(nv->nvram_version));
8498 		ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
8499 		ql_log(ql_log_info, vha, 0x0074,
8500 		    "Falling back to functioning (yet invalid -- WWPN) "
8501 		    "defaults.\n");
8502 
8503 		/*
8504 		 * Set default initialization control block.
8505 		 */
8506 		memset(nv, 0, ha->nvram_size);
8507 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
8508 		nv->version = cpu_to_le16(ICB_VERSION);
8509 		nv->frame_payload_size = cpu_to_le16(2048);
8510 		nv->execution_throttle = cpu_to_le16(0xFFFF);
8511 		nv->exchange_count = cpu_to_le16(0);
8512 		nv->port_name[0] = 0x21;
8513 		nv->port_name[1] = 0x00 + ha->port_no + 1;
8514 		nv->port_name[2] = 0x00;
8515 		nv->port_name[3] = 0xe0;
8516 		nv->port_name[4] = 0x8b;
8517 		nv->port_name[5] = 0x1c;
8518 		nv->port_name[6] = 0x55;
8519 		nv->port_name[7] = 0x86;
8520 		nv->node_name[0] = 0x20;
8521 		nv->node_name[1] = 0x00;
8522 		nv->node_name[2] = 0x00;
8523 		nv->node_name[3] = 0xe0;
8524 		nv->node_name[4] = 0x8b;
8525 		nv->node_name[5] = 0x1c;
8526 		nv->node_name[6] = 0x55;
8527 		nv->node_name[7] = 0x86;
8528 		nv->login_retry_count = cpu_to_le16(8);
8529 		nv->interrupt_delay_timer = cpu_to_le16(0);
8530 		nv->login_timeout = cpu_to_le16(0);
8531 		nv->firmware_options_1 =
8532 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
8533 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
8534 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
8535 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
8536 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
8537 		nv->efi_parameters = cpu_to_le32(0);
8538 		nv->reset_delay = 5;
8539 		nv->max_luns_per_target = cpu_to_le16(128);
8540 		nv->port_down_retry_count = cpu_to_le16(30);
8541 		nv->link_down_timeout = cpu_to_le16(180);
8542 		nv->enode_mac[0] = 0x00;
8543 		nv->enode_mac[1] = 0xC0;
8544 		nv->enode_mac[2] = 0xDD;
8545 		nv->enode_mac[3] = 0x04;
8546 		nv->enode_mac[4] = 0x05;
8547 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
8548 
8549 		rval = 1;
8550 	}
8551 
8552 	if (IS_T10_PI_CAPABLE(ha))
8553 		nv->frame_payload_size &= cpu_to_le16(~7);
8554 
8555 	qlt_81xx_config_nvram_stage1(vha, nv);
8556 
8557 	/* Reset Initialization control block */
8558 	memset(icb, 0, ha->init_cb_size);
8559 
8560 	/* Copy 1st segment. */
8561 	dptr1 = (uint8_t *)icb;
8562 	dptr2 = (uint8_t *)&nv->version;
8563 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
8564 	while (cnt--)
8565 		*dptr1++ = *dptr2++;
8566 
8567 	icb->login_retry_count = nv->login_retry_count;
8568 
8569 	/* Copy 2nd segment. */
8570 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
8571 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
8572 	cnt = (uint8_t *)&icb->reserved_5 -
8573 	    (uint8_t *)&icb->interrupt_delay_timer;
8574 	while (cnt--)
8575 		*dptr1++ = *dptr2++;
8576 
8577 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
8578 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
8579 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
8580 		icb->enode_mac[0] = 0x00;
8581 		icb->enode_mac[1] = 0xC0;
8582 		icb->enode_mac[2] = 0xDD;
8583 		icb->enode_mac[3] = 0x04;
8584 		icb->enode_mac[4] = 0x05;
8585 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
8586 	}
8587 
8588 	/* Use extended-initialization control block. */
8589 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
8590 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
8591 	/*
8592 	 * Setup driver NVRAM options.
8593 	 */
8594 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
8595 	    "QLE8XXX");
8596 
8597 	qlt_81xx_config_nvram_stage2(vha, icb);
8598 
8599 	/* Use alternate WWN? */
8600 	if (nv->host_p & cpu_to_le32(BIT_15)) {
8601 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
8602 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
8603 	}
8604 
8605 	/* Prepare nodename */
8606 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
8607 		/*
8608 		 * Firmware will apply the following mask if the nodename was
8609 		 * not provided.
8610 		 */
8611 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
8612 		icb->node_name[0] &= 0xF0;
8613 	}
8614 
8615 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) {
8616 		if ((nv->enhanced_features & BIT_7) == 0)
8617 			ha->flags.scm_supported_a = 1;
8618 	}
8619 
8620 	/* Set host adapter parameters. */
8621 	ha->flags.disable_risc_code_load = 0;
8622 	ha->flags.enable_lip_reset = 0;
8623 	ha->flags.enable_lip_full_login =
8624 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
8625 	ha->flags.enable_target_reset =
8626 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
8627 	ha->flags.enable_led_scheme = 0;
8628 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
8629 
8630 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
8631 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
8632 
8633 	/* save HBA serial number */
8634 	ha->serial0 = icb->port_name[5];
8635 	ha->serial1 = icb->port_name[6];
8636 	ha->serial2 = icb->port_name[7];
8637 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
8638 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
8639 
8640 	icb->execution_throttle = cpu_to_le16(0xFFFF);
8641 
8642 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
8643 
8644 	/* Set minimum login_timeout to 4 seconds. */
8645 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
8646 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
8647 	if (le16_to_cpu(nv->login_timeout) < 4)
8648 		nv->login_timeout = cpu_to_le16(4);
8649 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
8650 
8651 	/* Set minimum RATOV to 100 tenths of a second. */
8652 	ha->r_a_tov = 100;
8653 
8654 	ha->loop_reset_delay = nv->reset_delay;
8655 
8656 	/* Link Down Timeout = 0:
8657 	 *
8658 	 *	When Port Down timer expires we will start returning
8659 	 *	I/O's to OS with "DID_NO_CONNECT".
8660 	 *
8661 	 * Link Down Timeout != 0:
8662 	 *
8663 	 *	 The driver waits for the link to come up after link down
8664 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
8665 	 */
8666 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
8667 		ha->loop_down_abort_time =
8668 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
8669 	} else {
8670 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
8671 		ha->loop_down_abort_time =
8672 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
8673 	}
8674 
8675 	/* Need enough time to try and get the port back. */
8676 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
8677 	if (qlport_down_retry)
8678 		ha->port_down_retry_count = qlport_down_retry;
8679 
8680 	/* Set login_retry_count */
8681 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
8682 	if (ha->port_down_retry_count ==
8683 	    le16_to_cpu(nv->port_down_retry_count) &&
8684 	    ha->port_down_retry_count > 3)
8685 		ha->login_retry_count = ha->port_down_retry_count;
8686 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
8687 		ha->login_retry_count = ha->port_down_retry_count;
8688 	if (ql2xloginretrycount)
8689 		ha->login_retry_count = ql2xloginretrycount;
8690 
8691 	/* if not running MSI-X we need handshaking on interrupts */
8692 	if (!vha->hw->flags.msix_enabled &&
8693 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
8694 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
8695 
8696 	/* Enable ZIO. */
8697 	if (!vha->flags.init_done) {
8698 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
8699 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
8700 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
8701 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
8702 	}
8703 	icb->firmware_options_2 &= cpu_to_le32(
8704 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
8705 	vha->flags.process_response_queue = 0;
8706 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
8707 		ha->zio_mode = QLA_ZIO_MODE_6;
8708 
8709 		ql_log(ql_log_info, vha, 0x0075,
8710 		    "ZIO mode %d enabled; timer delay (%d us).\n",
8711 		    ha->zio_mode,
8712 		    ha->zio_timer * 100);
8713 
8714 		icb->firmware_options_2 |= cpu_to_le32(
8715 		    (uint32_t)ha->zio_mode);
8716 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
8717 		vha->flags.process_response_queue = 1;
8718 	}
8719 
8720 	 /* enable RIDA Format2 */
8721 	icb->firmware_options_3 |= cpu_to_le32(BIT_0);
8722 
8723 	/* N2N: driver will initiate Login instead of FW */
8724 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
8725 
8726 	/* Determine NVMe/FCP priority for target ports */
8727 	ha->fc4_type_priority = qla2xxx_get_fc4_priority(vha);
8728 
8729 	if (rval) {
8730 		ql_log(ql_log_warn, vha, 0x0076,
8731 		    "NVRAM configuration failed.\n");
8732 	}
8733 	return (rval);
8734 }
8735 
8736 int
8737 qla82xx_restart_isp(scsi_qla_host_t *vha)
8738 {
8739 	int status, rval;
8740 	struct qla_hw_data *ha = vha->hw;
8741 	struct scsi_qla_host *vp;
8742 	unsigned long flags;
8743 
8744 	status = qla2x00_init_rings(vha);
8745 	if (!status) {
8746 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8747 		ha->flags.chip_reset_done = 1;
8748 
8749 		status = qla2x00_fw_ready(vha);
8750 		if (!status) {
8751 			/* Issue a marker after FW becomes ready. */
8752 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8753 			vha->flags.online = 1;
8754 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8755 		}
8756 
8757 		/* if no cable then assume it's good */
8758 		if ((vha->device_flags & DFLG_NO_CABLE))
8759 			status = 0;
8760 	}
8761 
8762 	if (!status) {
8763 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8764 
8765 		if (!atomic_read(&vha->loop_down_timer)) {
8766 			/*
8767 			 * Issue marker command only when we are going
8768 			 * to start the I/O .
8769 			 */
8770 			vha->marker_needed = 1;
8771 		}
8772 
8773 		ha->isp_ops->enable_intrs(ha);
8774 
8775 		ha->isp_abort_cnt = 0;
8776 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
8777 
8778 		/* Update the firmware version */
8779 		status = qla82xx_check_md_needed(vha);
8780 
8781 		if (ha->fce) {
8782 			ha->flags.fce_enabled = 1;
8783 			memset(ha->fce, 0,
8784 			    fce_calc_size(ha->fce_bufs));
8785 			rval = qla2x00_enable_fce_trace(vha,
8786 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
8787 			    &ha->fce_bufs);
8788 			if (rval) {
8789 				ql_log(ql_log_warn, vha, 0x8001,
8790 				    "Unable to reinitialize FCE (%d).\n",
8791 				    rval);
8792 				ha->flags.fce_enabled = 0;
8793 			}
8794 		}
8795 
8796 		if (ha->eft) {
8797 			memset(ha->eft, 0, EFT_SIZE);
8798 			rval = qla2x00_enable_eft_trace(vha,
8799 			    ha->eft_dma, EFT_NUM_BUFFERS);
8800 			if (rval) {
8801 				ql_log(ql_log_warn, vha, 0x8010,
8802 				    "Unable to reinitialize EFT (%d).\n",
8803 				    rval);
8804 			}
8805 		}
8806 	}
8807 
8808 	if (!status) {
8809 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
8810 		    "qla82xx_restart_isp succeeded.\n");
8811 
8812 		spin_lock_irqsave(&ha->vport_slock, flags);
8813 		list_for_each_entry(vp, &ha->vp_list, list) {
8814 			if (vp->vp_idx) {
8815 				atomic_inc(&vp->vref_count);
8816 				spin_unlock_irqrestore(&ha->vport_slock, flags);
8817 
8818 				qla2x00_vp_abort_isp(vp);
8819 
8820 				spin_lock_irqsave(&ha->vport_slock, flags);
8821 				atomic_dec(&vp->vref_count);
8822 			}
8823 		}
8824 		spin_unlock_irqrestore(&ha->vport_slock, flags);
8825 
8826 	} else {
8827 		ql_log(ql_log_warn, vha, 0x8016,
8828 		    "qla82xx_restart_isp **** FAILED ****.\n");
8829 	}
8830 
8831 	return status;
8832 }
8833 
8834 /*
8835  * qla24xx_get_fcp_prio
8836  *	Gets the fcp cmd priority value for the logged in port.
8837  *	Looks for a match of the port descriptors within
8838  *	each of the fcp prio config entries. If a match is found,
8839  *	the tag (priority) value is returned.
8840  *
8841  * Input:
8842  *	vha = scsi host structure pointer.
8843  *	fcport = port structure pointer.
8844  *
8845  * Return:
8846  *	non-zero (if found)
8847  *	-1 (if not found)
8848  *
8849  * Context:
8850  * 	Kernel context
8851  */
8852 static int
8853 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8854 {
8855 	int i, entries;
8856 	uint8_t pid_match, wwn_match;
8857 	int priority;
8858 	uint32_t pid1, pid2;
8859 	uint64_t wwn1, wwn2;
8860 	struct qla_fcp_prio_entry *pri_entry;
8861 	struct qla_hw_data *ha = vha->hw;
8862 
8863 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
8864 		return -1;
8865 
8866 	priority = -1;
8867 	entries = ha->fcp_prio_cfg->num_entries;
8868 	pri_entry = &ha->fcp_prio_cfg->entry[0];
8869 
8870 	for (i = 0; i < entries; i++) {
8871 		pid_match = wwn_match = 0;
8872 
8873 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
8874 			pri_entry++;
8875 			continue;
8876 		}
8877 
8878 		/* check source pid for a match */
8879 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
8880 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
8881 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
8882 			if (pid1 == INVALID_PORT_ID)
8883 				pid_match++;
8884 			else if (pid1 == pid2)
8885 				pid_match++;
8886 		}
8887 
8888 		/* check destination pid for a match */
8889 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
8890 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
8891 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
8892 			if (pid1 == INVALID_PORT_ID)
8893 				pid_match++;
8894 			else if (pid1 == pid2)
8895 				pid_match++;
8896 		}
8897 
8898 		/* check source WWN for a match */
8899 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
8900 			wwn1 = wwn_to_u64(vha->port_name);
8901 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
8902 			if (wwn2 == (uint64_t)-1)
8903 				wwn_match++;
8904 			else if (wwn1 == wwn2)
8905 				wwn_match++;
8906 		}
8907 
8908 		/* check destination WWN for a match */
8909 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
8910 			wwn1 = wwn_to_u64(fcport->port_name);
8911 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
8912 			if (wwn2 == (uint64_t)-1)
8913 				wwn_match++;
8914 			else if (wwn1 == wwn2)
8915 				wwn_match++;
8916 		}
8917 
8918 		if (pid_match == 2 || wwn_match == 2) {
8919 			/* Found a matching entry */
8920 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
8921 				priority = pri_entry->tag;
8922 			break;
8923 		}
8924 
8925 		pri_entry++;
8926 	}
8927 
8928 	return priority;
8929 }
8930 
8931 /*
8932  * qla24xx_update_fcport_fcp_prio
8933  *	Activates fcp priority for the logged in fc port
8934  *
8935  * Input:
8936  *	vha = scsi host structure pointer.
8937  *	fcp = port structure pointer.
8938  *
8939  * Return:
8940  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8941  *
8942  * Context:
8943  *	Kernel context.
8944  */
8945 int
8946 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
8947 {
8948 	int ret;
8949 	int priority;
8950 	uint16_t mb[5];
8951 
8952 	if (fcport->port_type != FCT_TARGET ||
8953 	    fcport->loop_id == FC_NO_LOOP_ID)
8954 		return QLA_FUNCTION_FAILED;
8955 
8956 	priority = qla24xx_get_fcp_prio(vha, fcport);
8957 	if (priority < 0)
8958 		return QLA_FUNCTION_FAILED;
8959 
8960 	if (IS_P3P_TYPE(vha->hw)) {
8961 		fcport->fcp_prio = priority & 0xf;
8962 		return QLA_SUCCESS;
8963 	}
8964 
8965 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
8966 	if (ret == QLA_SUCCESS) {
8967 		if (fcport->fcp_prio != priority)
8968 			ql_dbg(ql_dbg_user, vha, 0x709e,
8969 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
8970 			    "port_id=%02x%02x%02x.\n", priority,
8971 			    fcport->loop_id, fcport->d_id.b.domain,
8972 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
8973 		fcport->fcp_prio = priority & 0xf;
8974 	} else
8975 		ql_dbg(ql_dbg_user, vha, 0x704f,
8976 		    "Unable to update FCP_CMND priority - ret=0x%x for "
8977 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
8978 		    fcport->d_id.b.domain, fcport->d_id.b.area,
8979 		    fcport->d_id.b.al_pa);
8980 	return  ret;
8981 }
8982 
8983 /*
8984  * qla24xx_update_all_fcp_prio
8985  *	Activates fcp priority for all the logged in ports
8986  *
8987  * Input:
8988  *	ha = adapter block pointer.
8989  *
8990  * Return:
8991  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
8992  *
8993  * Context:
8994  *	Kernel context.
8995  */
8996 int
8997 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
8998 {
8999 	int ret;
9000 	fc_port_t *fcport;
9001 
9002 	ret = QLA_FUNCTION_FAILED;
9003 	/* We need to set priority for all logged in ports */
9004 	list_for_each_entry(fcport, &vha->vp_fcports, list)
9005 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
9006 
9007 	return ret;
9008 }
9009 
9010 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
9011 	int vp_idx, bool startqp)
9012 {
9013 	int rsp_id = 0;
9014 	int  req_id = 0;
9015 	int i;
9016 	struct qla_hw_data *ha = vha->hw;
9017 	uint16_t qpair_id = 0;
9018 	struct qla_qpair *qpair = NULL;
9019 	struct qla_msix_entry *msix;
9020 
9021 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
9022 		ql_log(ql_log_warn, vha, 0x00181,
9023 		    "FW/Driver is not multi-queue capable.\n");
9024 		return NULL;
9025 	}
9026 
9027 	if (ql2xmqsupport || ql2xnvmeenable) {
9028 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
9029 		if (qpair == NULL) {
9030 			ql_log(ql_log_warn, vha, 0x0182,
9031 			    "Failed to allocate memory for queue pair.\n");
9032 			return NULL;
9033 		}
9034 
9035 		qpair->hw = vha->hw;
9036 		qpair->vha = vha;
9037 		qpair->qp_lock_ptr = &qpair->qp_lock;
9038 		spin_lock_init(&qpair->qp_lock);
9039 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
9040 
9041 		/* Assign available que pair id */
9042 		mutex_lock(&ha->mq_lock);
9043 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
9044 		if (ha->num_qpairs >= ha->max_qpairs) {
9045 			mutex_unlock(&ha->mq_lock);
9046 			ql_log(ql_log_warn, vha, 0x0183,
9047 			    "No resources to create additional q pair.\n");
9048 			goto fail_qid_map;
9049 		}
9050 		ha->num_qpairs++;
9051 		set_bit(qpair_id, ha->qpair_qid_map);
9052 		ha->queue_pair_map[qpair_id] = qpair;
9053 		qpair->id = qpair_id;
9054 		qpair->vp_idx = vp_idx;
9055 		qpair->fw_started = ha->flags.fw_started;
9056 		INIT_LIST_HEAD(&qpair->hints_list);
9057 		qpair->chip_reset = ha->base_qpair->chip_reset;
9058 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
9059 		qpair->enable_explicit_conf =
9060 		    ha->base_qpair->enable_explicit_conf;
9061 
9062 		for (i = 0; i < ha->msix_count; i++) {
9063 			msix = &ha->msix_entries[i];
9064 			if (msix->in_use)
9065 				continue;
9066 			qpair->msix = msix;
9067 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
9068 			    "Vector %x selected for qpair\n", msix->vector);
9069 			break;
9070 		}
9071 		if (!qpair->msix) {
9072 			ql_log(ql_log_warn, vha, 0x0184,
9073 			    "Out of MSI-X vectors!.\n");
9074 			goto fail_msix;
9075 		}
9076 
9077 		qpair->msix->in_use = 1;
9078 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
9079 		qpair->pdev = ha->pdev;
9080 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
9081 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
9082 
9083 		mutex_unlock(&ha->mq_lock);
9084 
9085 		/* Create response queue first */
9086 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
9087 		if (!rsp_id) {
9088 			ql_log(ql_log_warn, vha, 0x0185,
9089 			    "Failed to create response queue.\n");
9090 			goto fail_rsp;
9091 		}
9092 
9093 		qpair->rsp = ha->rsp_q_map[rsp_id];
9094 
9095 		/* Create request queue */
9096 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
9097 		    startqp);
9098 		if (!req_id) {
9099 			ql_log(ql_log_warn, vha, 0x0186,
9100 			    "Failed to create request queue.\n");
9101 			goto fail_req;
9102 		}
9103 
9104 		qpair->req = ha->req_q_map[req_id];
9105 		qpair->rsp->req = qpair->req;
9106 		qpair->rsp->qpair = qpair;
9107 		/* init qpair to this cpu. Will adjust at run time. */
9108 		qla_cpu_update(qpair, smp_processor_id());
9109 
9110 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
9111 			if (ha->fw_attributes & BIT_4)
9112 				qpair->difdix_supported = 1;
9113 		}
9114 
9115 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
9116 		if (!qpair->srb_mempool) {
9117 			ql_log(ql_log_warn, vha, 0xd036,
9118 			    "Failed to create srb mempool for qpair %d\n",
9119 			    qpair->id);
9120 			goto fail_mempool;
9121 		}
9122 
9123 		/* Mark as online */
9124 		qpair->online = 1;
9125 
9126 		if (!vha->flags.qpairs_available)
9127 			vha->flags.qpairs_available = 1;
9128 
9129 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
9130 		    "Request/Response queue pair created, id %d\n",
9131 		    qpair->id);
9132 		ql_dbg(ql_dbg_init, vha, 0x0187,
9133 		    "Request/Response queue pair created, id %d\n",
9134 		    qpair->id);
9135 	}
9136 	return qpair;
9137 
9138 fail_mempool:
9139 fail_req:
9140 	qla25xx_delete_rsp_que(vha, qpair->rsp);
9141 fail_rsp:
9142 	mutex_lock(&ha->mq_lock);
9143 	qpair->msix->in_use = 0;
9144 	list_del(&qpair->qp_list_elem);
9145 	if (list_empty(&vha->qp_list))
9146 		vha->flags.qpairs_available = 0;
9147 fail_msix:
9148 	ha->queue_pair_map[qpair_id] = NULL;
9149 	clear_bit(qpair_id, ha->qpair_qid_map);
9150 	ha->num_qpairs--;
9151 	mutex_unlock(&ha->mq_lock);
9152 fail_qid_map:
9153 	kfree(qpair);
9154 	return NULL;
9155 }
9156 
9157 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
9158 {
9159 	int ret = QLA_FUNCTION_FAILED;
9160 	struct qla_hw_data *ha = qpair->hw;
9161 
9162 	qpair->delete_in_progress = 1;
9163 
9164 	ret = qla25xx_delete_req_que(vha, qpair->req);
9165 	if (ret != QLA_SUCCESS)
9166 		goto fail;
9167 
9168 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
9169 	if (ret != QLA_SUCCESS)
9170 		goto fail;
9171 
9172 	mutex_lock(&ha->mq_lock);
9173 	ha->queue_pair_map[qpair->id] = NULL;
9174 	clear_bit(qpair->id, ha->qpair_qid_map);
9175 	ha->num_qpairs--;
9176 	list_del(&qpair->qp_list_elem);
9177 	if (list_empty(&vha->qp_list)) {
9178 		vha->flags.qpairs_available = 0;
9179 		vha->flags.qpairs_req_created = 0;
9180 		vha->flags.qpairs_rsp_created = 0;
9181 	}
9182 	mempool_destroy(qpair->srb_mempool);
9183 	kfree(qpair);
9184 	mutex_unlock(&ha->mq_lock);
9185 
9186 	return QLA_SUCCESS;
9187 fail:
9188 	return ret;
9189 }
9190 
9191 uint64_t
9192 qla2x00_count_set_bits(uint32_t num)
9193 {
9194 	/* Brian Kernighan's Algorithm */
9195 	u64 count = 0;
9196 
9197 	while (num) {
9198 		num &= (num - 1);
9199 		count++;
9200 	}
9201 	return count;
9202 }
9203 
9204 uint64_t
9205 qla2x00_get_num_tgts(scsi_qla_host_t *vha)
9206 {
9207 	fc_port_t *f, *tf;
9208 	u64 count = 0;
9209 
9210 	f = NULL;
9211 	tf = NULL;
9212 
9213 	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
9214 		if (f->port_type != FCT_TARGET)
9215 			continue;
9216 		count++;
9217 	}
9218 	return count;
9219 }
9220 
9221 int qla2xxx_reset_stats(struct Scsi_Host *host, u32 flags)
9222 {
9223 	scsi_qla_host_t *vha = shost_priv(host);
9224 	fc_port_t *fcport = NULL;
9225 	unsigned long int_flags;
9226 
9227 	if (flags & QLA2XX_HW_ERROR)
9228 		vha->hw_err_cnt = 0;
9229 	if (flags & QLA2XX_SHT_LNK_DWN)
9230 		vha->short_link_down_cnt = 0;
9231 	if (flags & QLA2XX_INT_ERR)
9232 		vha->interface_err_cnt = 0;
9233 	if (flags & QLA2XX_CMD_TIMEOUT)
9234 		vha->cmd_timeout_cnt = 0;
9235 	if (flags & QLA2XX_RESET_CMD_ERR)
9236 		vha->reset_cmd_err_cnt = 0;
9237 	if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
9238 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
9239 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
9240 			fcport->tgt_short_link_down_cnt = 0;
9241 			fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
9242 		}
9243 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
9244 	}
9245 	vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
9246 	return 0;
9247 }
9248 
9249 int qla2xxx_start_stats(struct Scsi_Host *host, u32 flags)
9250 {
9251 	return qla2xxx_reset_stats(host, flags);
9252 }
9253 
9254 int qla2xxx_stop_stats(struct Scsi_Host *host, u32 flags)
9255 {
9256 	return qla2xxx_reset_stats(host, flags);
9257 }
9258 
9259 int qla2xxx_get_ini_stats(struct Scsi_Host *host, u32 flags,
9260 			  void *data, u64 size)
9261 {
9262 	scsi_qla_host_t *vha = shost_priv(host);
9263 	struct ql_vnd_host_stats_resp *resp = (struct ql_vnd_host_stats_resp *)data;
9264 	struct ql_vnd_stats *rsp_data = &resp->stats;
9265 	u64 ini_entry_count = 0;
9266 	u64 i = 0;
9267 	u64 entry_count = 0;
9268 	u64 num_tgt = 0;
9269 	u32 tmp_stat_type = 0;
9270 	fc_port_t *fcport = NULL;
9271 	unsigned long int_flags;
9272 
9273 	/* Copy stat type to work on it */
9274 	tmp_stat_type = flags;
9275 
9276 	if (tmp_stat_type & BIT_17) {
9277 		num_tgt = qla2x00_get_num_tgts(vha);
9278 		/* unset BIT_17 */
9279 		tmp_stat_type &= ~(1 << 17);
9280 	}
9281 	ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
9282 
9283 	entry_count = ini_entry_count + num_tgt;
9284 
9285 	rsp_data->entry_count = entry_count;
9286 
9287 	i = 0;
9288 	if (flags & QLA2XX_HW_ERROR) {
9289 		rsp_data->entry[i].stat_type = QLA2XX_HW_ERROR;
9290 		rsp_data->entry[i].tgt_num = 0x0;
9291 		rsp_data->entry[i].cnt = vha->hw_err_cnt;
9292 		i++;
9293 	}
9294 
9295 	if (flags & QLA2XX_SHT_LNK_DWN) {
9296 		rsp_data->entry[i].stat_type = QLA2XX_SHT_LNK_DWN;
9297 		rsp_data->entry[i].tgt_num = 0x0;
9298 		rsp_data->entry[i].cnt = vha->short_link_down_cnt;
9299 		i++;
9300 	}
9301 
9302 	if (flags & QLA2XX_INT_ERR) {
9303 		rsp_data->entry[i].stat_type = QLA2XX_INT_ERR;
9304 		rsp_data->entry[i].tgt_num = 0x0;
9305 		rsp_data->entry[i].cnt = vha->interface_err_cnt;
9306 		i++;
9307 	}
9308 
9309 	if (flags & QLA2XX_CMD_TIMEOUT) {
9310 		rsp_data->entry[i].stat_type = QLA2XX_CMD_TIMEOUT;
9311 		rsp_data->entry[i].tgt_num = 0x0;
9312 		rsp_data->entry[i].cnt = vha->cmd_timeout_cnt;
9313 		i++;
9314 	}
9315 
9316 	if (flags & QLA2XX_RESET_CMD_ERR) {
9317 		rsp_data->entry[i].stat_type = QLA2XX_RESET_CMD_ERR;
9318 		rsp_data->entry[i].tgt_num = 0x0;
9319 		rsp_data->entry[i].cnt = vha->reset_cmd_err_cnt;
9320 		i++;
9321 	}
9322 
9323 	/* i will continue from previous loop, as target
9324 	 * entries are after initiator
9325 	 */
9326 	if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
9327 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
9328 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
9329 			if (fcport->port_type != FCT_TARGET)
9330 				continue;
9331 			if (!fcport->rport)
9332 				continue;
9333 			rsp_data->entry[i].stat_type = QLA2XX_TGT_SHT_LNK_DOWN;
9334 			rsp_data->entry[i].tgt_num = fcport->rport->number;
9335 			rsp_data->entry[i].cnt = fcport->tgt_short_link_down_cnt;
9336 			i++;
9337 		}
9338 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
9339 	}
9340 	resp->status = EXT_STATUS_OK;
9341 
9342 	return 0;
9343 }
9344 
9345 int qla2xxx_get_tgt_stats(struct Scsi_Host *host, u32 flags,
9346 			  struct fc_rport *rport, void *data, u64 size)
9347 {
9348 	struct ql_vnd_tgt_stats_resp *tgt_data = data;
9349 	fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
9350 
9351 	tgt_data->status = 0;
9352 	tgt_data->stats.entry_count = 1;
9353 	tgt_data->stats.entry[0].stat_type = flags;
9354 	tgt_data->stats.entry[0].tgt_num = rport->number;
9355 	tgt_data->stats.entry[0].cnt = fcport->tgt_short_link_down_cnt;
9356 
9357 	return 0;
9358 }
9359 
9360 int qla2xxx_disable_port(struct Scsi_Host *host)
9361 {
9362 	scsi_qla_host_t *vha = shost_priv(host);
9363 
9364 	vha->hw->flags.port_isolated = 1;
9365 
9366 	if (qla2x00_chip_is_down(vha))
9367 		return 0;
9368 
9369 	if (vha->flags.online) {
9370 		qla2x00_abort_isp_cleanup(vha);
9371 		qla2x00_wait_for_sess_deletion(vha);
9372 	}
9373 
9374 	return 0;
9375 }
9376 
9377 int qla2xxx_enable_port(struct Scsi_Host *host)
9378 {
9379 	scsi_qla_host_t *vha = shost_priv(host);
9380 
9381 	vha->hw->flags.port_isolated = 0;
9382 	/* Set the flag to 1, so that isp_abort can proceed */
9383 	vha->flags.online = 1;
9384 	set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9385 	qla2xxx_wake_dpc(vha);
9386 
9387 	return 0;
9388 }
9389