xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision dd21bfa4)
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 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha,
38 				      struct event_arg *ea);
39 static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
40     struct event_arg *);
41 static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
42 
43 /* SRB Extensions ---------------------------------------------------------- */
44 
45 void
46 qla2x00_sp_timeout(struct timer_list *t)
47 {
48 	srb_t *sp = from_timer(sp, t, u.iocb_cmd.timer);
49 	struct srb_iocb *iocb;
50 
51 	WARN_ON(irqs_disabled());
52 	iocb = &sp->u.iocb_cmd;
53 	iocb->timeout(sp);
54 }
55 
56 void qla2x00_sp_free(srb_t *sp)
57 {
58 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
59 
60 	del_timer(&iocb->timer);
61 	qla2x00_rel_sp(sp);
62 }
63 
64 void qla2xxx_rel_done_warning(srb_t *sp, int res)
65 {
66 	WARN_ONCE(1, "Calling done() of an already freed srb %p object\n", sp);
67 }
68 
69 void qla2xxx_rel_free_warning(srb_t *sp)
70 {
71 	WARN_ONCE(1, "Calling free() of an already freed srb %p object\n", sp);
72 }
73 
74 /* Asynchronous Login/Logout Routines -------------------------------------- */
75 
76 unsigned long
77 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
78 {
79 	unsigned long tmo;
80 	struct qla_hw_data *ha = vha->hw;
81 
82 	/* Firmware should use switch negotiated r_a_tov for timeout. */
83 	tmo = ha->r_a_tov / 10 * 2;
84 	if (IS_QLAFX00(ha)) {
85 		tmo = FX00_DEF_RATOV * 2;
86 	} else if (!IS_FWI2_CAPABLE(ha)) {
87 		/*
88 		 * Except for earlier ISPs where the timeout is seeded from the
89 		 * initialization control block.
90 		 */
91 		tmo = ha->login_timeout;
92 	}
93 	return tmo;
94 }
95 
96 static void qla24xx_abort_iocb_timeout(void *data)
97 {
98 	srb_t *sp = data;
99 	struct srb_iocb *abt = &sp->u.iocb_cmd;
100 	struct qla_qpair *qpair = sp->qpair;
101 	u32 handle;
102 	unsigned long flags;
103 
104 	if (sp->cmd_sp)
105 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
106 		    "Abort timeout - cmd hdl=%x, cmd type=%x hdl=%x, type=%x\n",
107 		    sp->cmd_sp->handle, sp->cmd_sp->type,
108 		    sp->handle, sp->type);
109 	else
110 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
111 		    "Abort timeout 2 - hdl=%x, type=%x\n",
112 		    sp->handle, sp->type);
113 
114 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
115 	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
116 		if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
117 		    sp->cmd_sp))
118 			qpair->req->outstanding_cmds[handle] = NULL;
119 
120 		/* removing the abort */
121 		if (qpair->req->outstanding_cmds[handle] == sp) {
122 			qpair->req->outstanding_cmds[handle] = NULL;
123 			break;
124 		}
125 	}
126 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
127 
128 	if (sp->cmd_sp)
129 		sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
130 
131 	abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
132 	sp->done(sp, QLA_OS_TIMER_EXPIRED);
133 }
134 
135 static void qla24xx_abort_sp_done(srb_t *sp, int res)
136 {
137 	struct srb_iocb *abt = &sp->u.iocb_cmd;
138 	srb_t *orig_sp = sp->cmd_sp;
139 
140 	if (orig_sp)
141 		qla_wait_nvme_release_cmd_kref(orig_sp);
142 
143 	del_timer(&sp->u.iocb_cmd.timer);
144 	if (sp->flags & SRB_WAKEUP_ON_COMP)
145 		complete(&abt->u.abt.comp);
146 	else
147 		sp->free(sp);
148 }
149 
150 int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
151 {
152 	scsi_qla_host_t *vha = cmd_sp->vha;
153 	struct srb_iocb *abt_iocb;
154 	srb_t *sp;
155 	int rval = QLA_FUNCTION_FAILED;
156 
157 	sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
158 				  GFP_ATOMIC);
159 	if (!sp)
160 		return QLA_MEMORY_ALLOC_FAILED;
161 
162 	abt_iocb = &sp->u.iocb_cmd;
163 	sp->type = SRB_ABT_CMD;
164 	sp->name = "abort";
165 	sp->qpair = cmd_sp->qpair;
166 	sp->cmd_sp = cmd_sp;
167 	if (wait)
168 		sp->flags = SRB_WAKEUP_ON_COMP;
169 
170 	abt_iocb->timeout = qla24xx_abort_iocb_timeout;
171 	init_completion(&abt_iocb->u.abt.comp);
172 	/* FW can send 2 x ABTS's timeout/20s */
173 	qla2x00_init_timer(sp, 42);
174 
175 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
176 	abt_iocb->u.abt.req_que_no = cpu_to_le16(cmd_sp->qpair->req->id);
177 
178 	sp->done = qla24xx_abort_sp_done;
179 
180 	ql_dbg(ql_dbg_async, vha, 0x507c,
181 	       "Abort command issued - hdl=%x, type=%x\n", cmd_sp->handle,
182 	       cmd_sp->type);
183 
184 	rval = qla2x00_start_sp(sp);
185 	if (rval != QLA_SUCCESS) {
186 		sp->free(sp);
187 		return rval;
188 	}
189 
190 	if (wait) {
191 		wait_for_completion(&abt_iocb->u.abt.comp);
192 		rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
193 			QLA_SUCCESS : QLA_ERR_FROM_FW;
194 		sp->free(sp);
195 	}
196 
197 	return rval;
198 }
199 
200 void
201 qla2x00_async_iocb_timeout(void *data)
202 {
203 	srb_t *sp = data;
204 	fc_port_t *fcport = sp->fcport;
205 	struct srb_iocb *lio = &sp->u.iocb_cmd;
206 	int rc, h;
207 	unsigned long flags;
208 
209 	if (fcport) {
210 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
211 		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
212 		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
213 
214 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
215 	} else {
216 		pr_info("Async-%s timeout - hdl=%x.\n",
217 		    sp->name, sp->handle);
218 	}
219 
220 	switch (sp->type) {
221 	case SRB_LOGIN_CMD:
222 		rc = qla24xx_async_abort_cmd(sp, false);
223 		if (rc) {
224 			/* Retry as needed. */
225 			lio->u.logio.data[0] = MBS_COMMAND_ERROR;
226 			lio->u.logio.data[1] =
227 				lio->u.logio.flags & SRB_LOGIN_RETRIED ?
228 				QLA_LOGIO_LOGIN_RETRIED : 0;
229 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
230 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
231 			    h++) {
232 				if (sp->qpair->req->outstanding_cmds[h] ==
233 				    sp) {
234 					sp->qpair->req->outstanding_cmds[h] =
235 					    NULL;
236 					break;
237 				}
238 			}
239 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
240 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
241 		}
242 		break;
243 	case SRB_LOGOUT_CMD:
244 	case SRB_CT_PTHRU_CMD:
245 	case SRB_MB_IOCB:
246 	case SRB_NACK_PLOGI:
247 	case SRB_NACK_PRLI:
248 	case SRB_NACK_LOGO:
249 	case SRB_CTRL_VP:
250 	default:
251 		rc = qla24xx_async_abort_cmd(sp, false);
252 		if (rc) {
253 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
254 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
255 			    h++) {
256 				if (sp->qpair->req->outstanding_cmds[h] ==
257 				    sp) {
258 					sp->qpair->req->outstanding_cmds[h] =
259 					    NULL;
260 					break;
261 				}
262 			}
263 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
264 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
265 		}
266 		break;
267 	}
268 }
269 
270 static void qla2x00_async_login_sp_done(srb_t *sp, int res)
271 {
272 	struct scsi_qla_host *vha = sp->vha;
273 	struct srb_iocb *lio = &sp->u.iocb_cmd;
274 	struct event_arg ea;
275 
276 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
277 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
278 
279 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
280 
281 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
282 		memset(&ea, 0, sizeof(ea));
283 		ea.fcport = sp->fcport;
284 		ea.data[0] = lio->u.logio.data[0];
285 		ea.data[1] = lio->u.logio.data[1];
286 		ea.iop[0] = lio->u.logio.iop[0];
287 		ea.iop[1] = lio->u.logio.iop[1];
288 		ea.sp = sp;
289 		qla24xx_handle_plogi_done_event(vha, &ea);
290 	}
291 
292 	sp->free(sp);
293 }
294 
295 int
296 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
297     uint16_t *data)
298 {
299 	srb_t *sp;
300 	struct srb_iocb *lio;
301 	int rval = QLA_FUNCTION_FAILED;
302 
303 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
304 	    fcport->loop_id == FC_NO_LOOP_ID) {
305 		ql_log(ql_log_warn, vha, 0xffff,
306 		    "%s: %8phC - not sending command.\n",
307 		    __func__, fcport->port_name);
308 		return rval;
309 	}
310 
311 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
312 	if (!sp)
313 		goto done;
314 
315 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
316 	fcport->flags |= FCF_ASYNC_SENT;
317 	fcport->logout_completed = 0;
318 
319 	sp->type = SRB_LOGIN_CMD;
320 	sp->name = "login";
321 	sp->gen1 = fcport->rscn_gen;
322 	sp->gen2 = fcport->login_gen;
323 
324 	lio = &sp->u.iocb_cmd;
325 	lio->timeout = qla2x00_async_iocb_timeout;
326 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
327 
328 	sp->done = qla2x00_async_login_sp_done;
329 	if (N2N_TOPO(fcport->vha->hw) && fcport_is_bigger(fcport)) {
330 		lio->u.logio.flags |= SRB_LOGIN_PRLI_ONLY;
331 	} else {
332 		if (vha->hw->flags.edif_enabled &&
333 		    DBELL_ACTIVE(vha)) {
334 			lio->u.logio.flags |=
335 				(SRB_LOGIN_FCSP | SRB_LOGIN_SKIP_PRLI);
336 		} else {
337 			lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
338 		}
339 	}
340 
341 	if (NVME_TARGET(vha->hw, fcport))
342 		lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
343 
344 	rval = qla2x00_start_sp(sp);
345 
346 	ql_dbg(ql_dbg_disc, vha, 0x2072,
347 	       "Async-login - %8phC hdl=%x, loopid=%x portid=%06x retries=%d %s.\n",
348 	       fcport->port_name, sp->handle, fcport->loop_id,
349 	       fcport->d_id.b24, fcport->login_retry,
350 	       lio->u.logio.flags & SRB_LOGIN_FCSP ? "FCSP" : "");
351 
352 	if (rval != QLA_SUCCESS) {
353 		fcport->flags |= FCF_LOGIN_NEEDED;
354 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
355 		goto done_free_sp;
356 	}
357 
358 	return rval;
359 
360 done_free_sp:
361 	sp->free(sp);
362 	fcport->flags &= ~FCF_ASYNC_SENT;
363 done:
364 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
365 	return rval;
366 }
367 
368 static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
369 {
370 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
371 	sp->fcport->login_gen++;
372 	qlt_logo_completion_handler(sp->fcport, sp->u.iocb_cmd.u.logio.data[0]);
373 	sp->free(sp);
374 }
375 
376 int
377 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
378 {
379 	srb_t *sp;
380 	struct srb_iocb *lio;
381 	int rval = QLA_FUNCTION_FAILED;
382 
383 	fcport->flags |= FCF_ASYNC_SENT;
384 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
385 	if (!sp)
386 		goto done;
387 
388 	sp->type = SRB_LOGOUT_CMD;
389 	sp->name = "logout";
390 
391 	lio = &sp->u.iocb_cmd;
392 	lio->timeout = qla2x00_async_iocb_timeout;
393 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
394 
395 	sp->done = qla2x00_async_logout_sp_done;
396 
397 	ql_dbg(ql_dbg_disc, vha, 0x2070,
398 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC explicit %d.\n",
399 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
400 		fcport->d_id.b.area, fcport->d_id.b.al_pa,
401 		fcport->port_name, fcport->explicit_logout);
402 
403 	rval = qla2x00_start_sp(sp);
404 	if (rval != QLA_SUCCESS)
405 		goto done_free_sp;
406 	return rval;
407 
408 done_free_sp:
409 	sp->free(sp);
410 done:
411 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
412 	return rval;
413 }
414 
415 void
416 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
417     uint16_t *data)
418 {
419 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
420 	/* Don't re-login in target mode */
421 	if (!fcport->tgt_session)
422 		qla2x00_mark_device_lost(vha, fcport, 1);
423 	qlt_logo_completion_handler(fcport, data[0]);
424 }
425 
426 static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
427 {
428 	struct srb_iocb *lio = &sp->u.iocb_cmd;
429 	struct scsi_qla_host *vha = sp->vha;
430 
431 	sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
432 	if (!test_bit(UNLOADING, &vha->dpc_flags))
433 		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
434 		    lio->u.logio.data);
435 	sp->free(sp);
436 }
437 
438 int
439 qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
440 {
441 	srb_t *sp;
442 	struct srb_iocb *lio;
443 	int rval;
444 
445 	rval = QLA_FUNCTION_FAILED;
446 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
447 	if (!sp)
448 		goto done;
449 
450 	sp->type = SRB_PRLO_CMD;
451 	sp->name = "prlo";
452 
453 	lio = &sp->u.iocb_cmd;
454 	lio->timeout = qla2x00_async_iocb_timeout;
455 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
456 
457 	sp->done = qla2x00_async_prlo_sp_done;
458 
459 	ql_dbg(ql_dbg_disc, vha, 0x2070,
460 	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
461 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
462 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
463 
464 	rval = qla2x00_start_sp(sp);
465 	if (rval != QLA_SUCCESS)
466 		goto done_free_sp;
467 
468 	return rval;
469 
470 done_free_sp:
471 	sp->free(sp);
472 done:
473 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
474 	return rval;
475 }
476 
477 static
478 void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
479 {
480 	struct fc_port *fcport = ea->fcport;
481 
482 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
483 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
484 	    __func__, fcport->port_name, fcport->disc_state,
485 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
486 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
487 
488 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
489 		  ea->data[0]);
490 
491 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
492 		ql_dbg(ql_dbg_disc, vha, 0x2066,
493 		    "%s %8phC: adisc fail: post delete\n",
494 		    __func__, ea->fcport->port_name);
495 		/* deleted = 0 & logout_on_delete = force fw cleanup */
496 		fcport->deleted = 0;
497 		fcport->logout_on_delete = 1;
498 		qlt_schedule_sess_for_deletion(ea->fcport);
499 		return;
500 	}
501 
502 	if (ea->fcport->disc_state == DSC_DELETE_PEND)
503 		return;
504 
505 	if (ea->sp->gen2 != ea->fcport->login_gen) {
506 		/* target side must have changed it. */
507 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
508 		    "%s %8phC generation changed\n",
509 		    __func__, ea->fcport->port_name);
510 		return;
511 	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
512 		qla_rscn_replay(fcport);
513 		qlt_schedule_sess_for_deletion(fcport);
514 		return;
515 	}
516 
517 	__qla24xx_handle_gpdb_event(vha, ea);
518 }
519 
520 static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
521 {
522 	struct qla_work_evt *e;
523 
524 	e = qla2x00_alloc_work(vha, QLA_EVT_ELS_PLOGI);
525 	if (!e)
526 		return QLA_FUNCTION_FAILED;
527 
528 	e->u.fcport.fcport = fcport;
529 	fcport->flags |= FCF_ASYNC_ACTIVE;
530 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
531 	return qla2x00_post_work(vha, e);
532 }
533 
534 static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
535 {
536 	struct scsi_qla_host *vha = sp->vha;
537 	struct event_arg ea;
538 	struct srb_iocb *lio = &sp->u.iocb_cmd;
539 
540 	ql_dbg(ql_dbg_disc, vha, 0x2066,
541 	    "Async done-%s res %x %8phC\n",
542 	    sp->name, res, sp->fcport->port_name);
543 
544 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
545 
546 	memset(&ea, 0, sizeof(ea));
547 	ea.rc = res;
548 	ea.data[0] = lio->u.logio.data[0];
549 	ea.data[1] = lio->u.logio.data[1];
550 	ea.iop[0] = lio->u.logio.iop[0];
551 	ea.iop[1] = lio->u.logio.iop[1];
552 	ea.fcport = sp->fcport;
553 	ea.sp = sp;
554 
555 	qla24xx_handle_adisc_event(vha, &ea);
556 
557 	sp->free(sp);
558 }
559 
560 int
561 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
562     uint16_t *data)
563 {
564 	srb_t *sp;
565 	struct srb_iocb *lio;
566 	int rval = QLA_FUNCTION_FAILED;
567 
568 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
569 		return rval;
570 
571 	fcport->flags |= FCF_ASYNC_SENT;
572 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
573 	if (!sp)
574 		goto done;
575 
576 	sp->type = SRB_ADISC_CMD;
577 	sp->name = "adisc";
578 
579 	lio = &sp->u.iocb_cmd;
580 	lio->timeout = qla2x00_async_iocb_timeout;
581 	sp->gen1 = fcport->rscn_gen;
582 	sp->gen2 = fcport->login_gen;
583 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
584 
585 	sp->done = qla2x00_async_adisc_sp_done;
586 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
587 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
588 
589 	ql_dbg(ql_dbg_disc, vha, 0x206f,
590 	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
591 	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
592 
593 	rval = qla2x00_start_sp(sp);
594 	if (rval != QLA_SUCCESS)
595 		goto done_free_sp;
596 
597 	return rval;
598 
599 done_free_sp:
600 	sp->free(sp);
601 done:
602 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
603 	qla2x00_post_async_adisc_work(vha, fcport, data);
604 	return rval;
605 }
606 
607 static bool qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
608 {
609 	struct qla_hw_data *ha = vha->hw;
610 
611 	if (IS_FWI2_CAPABLE(ha))
612 		return loop_id > NPH_LAST_HANDLE;
613 
614 	return (loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
615 		loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST;
616 }
617 
618 /**
619  * qla2x00_find_new_loop_id - scan through our port list and find a new usable loop ID
620  * @vha: adapter state pointer.
621  * @dev: port structure pointer.
622  *
623  * Returns:
624  *	qla2x00 local function return status code.
625  *
626  * Context:
627  *	Kernel context.
628  */
629 static int qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
630 {
631 	int	rval;
632 	struct qla_hw_data *ha = vha->hw;
633 	unsigned long flags = 0;
634 
635 	rval = QLA_SUCCESS;
636 
637 	spin_lock_irqsave(&ha->vport_slock, flags);
638 
639 	dev->loop_id = find_first_zero_bit(ha->loop_id_map, LOOPID_MAP_SIZE);
640 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
641 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
642 		dev->loop_id = FC_NO_LOOP_ID;
643 		rval = QLA_FUNCTION_FAILED;
644 	} else {
645 		set_bit(dev->loop_id, ha->loop_id_map);
646 	}
647 	spin_unlock_irqrestore(&ha->vport_slock, flags);
648 
649 	if (rval == QLA_SUCCESS)
650 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
651 		       "Assigning new loopid=%x, portid=%x.\n",
652 		       dev->loop_id, dev->d_id.b24);
653 	else
654 		ql_log(ql_log_warn, dev->vha, 0x2087,
655 		       "No loop_id's available, portid=%x.\n",
656 		       dev->d_id.b24);
657 
658 	return rval;
659 }
660 
661 void qla2x00_clear_loop_id(fc_port_t *fcport)
662 {
663 	struct qla_hw_data *ha = fcport->vha->hw;
664 
665 	if (fcport->loop_id == FC_NO_LOOP_ID ||
666 	    qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
667 		return;
668 
669 	clear_bit(fcport->loop_id, ha->loop_id_map);
670 	fcport->loop_id = FC_NO_LOOP_ID;
671 }
672 
673 static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
674 	struct event_arg *ea)
675 {
676 	fc_port_t *fcport, *conflict_fcport;
677 	struct get_name_list_extended *e;
678 	u16 i, n, found = 0, loop_id;
679 	port_id_t id;
680 	u64 wwn;
681 	u16 data[2];
682 	u8 current_login_state, nvme_cls;
683 
684 	fcport = ea->fcport;
685 	ql_dbg(ql_dbg_disc, vha, 0xffff,
686 	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d edif %d\n",
687 	    __func__, fcport->port_name, fcport->disc_state,
688 	    fcport->fw_login_state, ea->rc,
689 	    fcport->login_gen, fcport->last_login_gen,
690 	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id, fcport->edif.enable);
691 
692 	if (fcport->disc_state == DSC_DELETE_PEND)
693 		return;
694 
695 	if (ea->rc) { /* rval */
696 		if (fcport->login_retry == 0) {
697 			ql_dbg(ql_dbg_disc, vha, 0x20de,
698 			    "GNL failed Port login retry %8phN, retry cnt=%d.\n",
699 			    fcport->port_name, fcport->login_retry);
700 		}
701 		return;
702 	}
703 
704 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
705 		qla_rscn_replay(fcport);
706 		qlt_schedule_sess_for_deletion(fcport);
707 		return;
708 	} else if (fcport->last_login_gen != fcport->login_gen) {
709 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
710 		    "%s %8phC login gen changed\n",
711 		    __func__, fcport->port_name);
712 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
713 		return;
714 	}
715 
716 	n = ea->data[0] / sizeof(struct get_name_list_extended);
717 
718 	ql_dbg(ql_dbg_disc, vha, 0x20e1,
719 	    "%s %d %8phC n %d %02x%02x%02x lid %d \n",
720 	    __func__, __LINE__, fcport->port_name, n,
721 	    fcport->d_id.b.domain, fcport->d_id.b.area,
722 	    fcport->d_id.b.al_pa, fcport->loop_id);
723 
724 	for (i = 0; i < n; i++) {
725 		e = &vha->gnl.l[i];
726 		wwn = wwn_to_u64(e->port_name);
727 		id.b.domain = e->port_id[2];
728 		id.b.area = e->port_id[1];
729 		id.b.al_pa = e->port_id[0];
730 		id.b.rsvd_1 = 0;
731 
732 		if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
733 			continue;
734 
735 		if (IS_SW_RESV_ADDR(id))
736 			continue;
737 
738 		found = 1;
739 
740 		loop_id = le16_to_cpu(e->nport_handle);
741 		loop_id = (loop_id & 0x7fff);
742 		nvme_cls = e->current_login_state >> 4;
743 		current_login_state = e->current_login_state & 0xf;
744 
745 		if (PRLI_PHASE(nvme_cls)) {
746 			current_login_state = nvme_cls;
747 			fcport->fc4_type &= ~FS_FC4TYPE_FCP;
748 			fcport->fc4_type |= FS_FC4TYPE_NVME;
749 		} else if (PRLI_PHASE(current_login_state)) {
750 			fcport->fc4_type |= FS_FC4TYPE_FCP;
751 			fcport->fc4_type &= ~FS_FC4TYPE_NVME;
752 		}
753 
754 		ql_dbg(ql_dbg_disc, vha, 0x20e2,
755 		    "%s found %8phC CLS [%x|%x] fc4_type %d ID[%06x|%06x] lid[%d|%d]\n",
756 		    __func__, fcport->port_name,
757 		    e->current_login_state, fcport->fw_login_state,
758 		    fcport->fc4_type, id.b24, fcport->d_id.b24,
759 		    loop_id, fcport->loop_id);
760 
761 		switch (fcport->disc_state) {
762 		case DSC_DELETE_PEND:
763 		case DSC_DELETED:
764 			break;
765 		default:
766 			if ((id.b24 != fcport->d_id.b24 &&
767 			    fcport->d_id.b24 &&
768 			    fcport->loop_id != FC_NO_LOOP_ID) ||
769 			    (fcport->loop_id != FC_NO_LOOP_ID &&
770 				fcport->loop_id != loop_id)) {
771 				ql_dbg(ql_dbg_disc, vha, 0x20e3,
772 				    "%s %d %8phC post del sess\n",
773 				    __func__, __LINE__, fcport->port_name);
774 				if (fcport->n2n_flag)
775 					fcport->d_id.b24 = 0;
776 				qlt_schedule_sess_for_deletion(fcport);
777 				return;
778 			}
779 			break;
780 		}
781 
782 		fcport->loop_id = loop_id;
783 		if (fcport->n2n_flag)
784 			fcport->d_id.b24 = id.b24;
785 
786 		wwn = wwn_to_u64(fcport->port_name);
787 		qlt_find_sess_invalidate_other(vha, wwn,
788 			id, loop_id, &conflict_fcport);
789 
790 		if (conflict_fcport) {
791 			/*
792 			 * Another share fcport share the same loop_id &
793 			 * nport id. Conflict fcport needs to finish
794 			 * cleanup before this fcport can proceed to login.
795 			 */
796 			conflict_fcport->conflict = fcport;
797 			fcport->login_pause = 1;
798 		}
799 
800 		switch (vha->hw->current_topology) {
801 		default:
802 			switch (current_login_state) {
803 			case DSC_LS_PRLI_COMP:
804 				ql_dbg(ql_dbg_disc,
805 				    vha, 0x20e4, "%s %d %8phC post gpdb\n",
806 				    __func__, __LINE__, fcport->port_name);
807 
808 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
809 					fcport->port_type = FCT_INITIATOR;
810 				else
811 					fcport->port_type = FCT_TARGET;
812 				data[0] = data[1] = 0;
813 				qla2x00_post_async_adisc_work(vha, fcport,
814 				    data);
815 				break;
816 			case DSC_LS_PLOGI_COMP:
817 				if (vha->hw->flags.edif_enabled) {
818 					/* check to see if App support Secure */
819 					qla24xx_post_gpdb_work(vha, fcport, 0);
820 					break;
821 				}
822 				fallthrough;
823 			case DSC_LS_PORT_UNAVAIL:
824 			default:
825 				if (fcport->loop_id == FC_NO_LOOP_ID) {
826 					qla2x00_find_new_loop_id(vha, fcport);
827 					fcport->fw_login_state =
828 					    DSC_LS_PORT_UNAVAIL;
829 				}
830 				ql_dbg(ql_dbg_disc, vha, 0x20e5,
831 				    "%s %d %8phC\n", __func__, __LINE__,
832 				    fcport->port_name);
833 				qla24xx_fcport_handle_login(vha, fcport);
834 				break;
835 			}
836 			break;
837 		case ISP_CFG_N:
838 			fcport->fw_login_state = current_login_state;
839 			fcport->d_id = id;
840 			switch (current_login_state) {
841 			case DSC_LS_PRLI_PEND:
842 				/*
843 				 * In the middle of PRLI. Let it finish.
844 				 * Allow relogin code to recheck state again
845 				 * with GNL. Push disc_state back to DELETED
846 				 * so GNL can go out again
847 				 */
848 				qla2x00_set_fcport_disc_state(fcport,
849 				    DSC_DELETED);
850 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
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 (vha->hw->flags.edif_enabled &&
864 				    DBELL_ACTIVE(vha)) {
865 					/* check to see if App support secure or not */
866 					qla24xx_post_gpdb_work(vha, fcport, 0);
867 					break;
868 				}
869 				if (fcport_is_bigger(fcport)) {
870 					/* local adapter is smaller */
871 					if (fcport->loop_id != FC_NO_LOOP_ID)
872 						qla2x00_clear_loop_id(fcport);
873 
874 					fcport->loop_id = loop_id;
875 					qla24xx_fcport_handle_login(vha,
876 					    fcport);
877 					break;
878 				}
879 				fallthrough;
880 			default:
881 				if (fcport_is_smaller(fcport)) {
882 					/* local adapter is bigger */
883 					if (fcport->loop_id != FC_NO_LOOP_ID)
884 						qla2x00_clear_loop_id(fcport);
885 
886 					fcport->loop_id = loop_id;
887 					qla24xx_fcport_handle_login(vha,
888 					    fcport);
889 				}
890 				break;
891 			}
892 			break;
893 		} /* switch (ha->current_topology) */
894 	}
895 
896 	if (!found) {
897 		switch (vha->hw->current_topology) {
898 		case ISP_CFG_F:
899 		case ISP_CFG_FL:
900 			for (i = 0; i < n; i++) {
901 				e = &vha->gnl.l[i];
902 				id.b.domain = e->port_id[0];
903 				id.b.area = e->port_id[1];
904 				id.b.al_pa = e->port_id[2];
905 				id.b.rsvd_1 = 0;
906 				loop_id = le16_to_cpu(e->nport_handle);
907 
908 				if (fcport->d_id.b24 == id.b24) {
909 					conflict_fcport =
910 					    qla2x00_find_fcport_by_wwpn(vha,
911 						e->port_name, 0);
912 					if (conflict_fcport) {
913 						ql_dbg(ql_dbg_disc + ql_dbg_verbose,
914 						    vha, 0x20e5,
915 						    "%s %d %8phC post del sess\n",
916 						    __func__, __LINE__,
917 						    conflict_fcport->port_name);
918 						qlt_schedule_sess_for_deletion
919 							(conflict_fcport);
920 					}
921 				}
922 				/*
923 				 * FW already picked this loop id for
924 				 * another fcport
925 				 */
926 				if (fcport->loop_id == loop_id)
927 					fcport->loop_id = FC_NO_LOOP_ID;
928 			}
929 			qla24xx_fcport_handle_login(vha, fcport);
930 			break;
931 		case ISP_CFG_N:
932 			qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
933 			if (time_after_eq(jiffies, fcport->dm_login_expire)) {
934 				if (fcport->n2n_link_reset_cnt < 2) {
935 					fcport->n2n_link_reset_cnt++;
936 					/*
937 					 * remote port is not sending PLOGI.
938 					 * Reset link to kick start his state
939 					 * machine
940 					 */
941 					set_bit(N2N_LINK_RESET,
942 					    &vha->dpc_flags);
943 				} else {
944 					if (fcport->n2n_chip_reset < 1) {
945 						ql_log(ql_log_info, vha, 0x705d,
946 						    "Chip reset to bring laser down");
947 						set_bit(ISP_ABORT_NEEDED,
948 						    &vha->dpc_flags);
949 						fcport->n2n_chip_reset++;
950 					} else {
951 						ql_log(ql_log_info, vha, 0x705d,
952 						    "Remote port %8ph is not coming back\n",
953 						    fcport->port_name);
954 						fcport->scan_state = 0;
955 					}
956 				}
957 				qla2xxx_wake_dpc(vha);
958 			} else {
959 				/*
960 				 * report port suppose to do PLOGI. Give him
961 				 * more time. FW will catch it.
962 				 */
963 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
964 			}
965 			break;
966 		default:
967 			break;
968 		}
969 	}
970 } /* gnl_event */
971 
972 static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
973 {
974 	struct scsi_qla_host *vha = sp->vha;
975 	unsigned long flags;
976 	struct fc_port *fcport = NULL, *tf;
977 	u16 i, n = 0, loop_id;
978 	struct event_arg ea;
979 	struct get_name_list_extended *e;
980 	u64 wwn;
981 	struct list_head h;
982 	bool found = false;
983 
984 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
985 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
986 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
987 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
988 
989 
990 	sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
991 	memset(&ea, 0, sizeof(ea));
992 	ea.sp = sp;
993 	ea.rc = res;
994 
995 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
996 	    sizeof(struct get_name_list_extended)) {
997 		n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
998 		    sizeof(struct get_name_list_extended);
999 		ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
1000 	}
1001 
1002 	for (i = 0; i < n; i++) {
1003 		e = &vha->gnl.l[i];
1004 		loop_id = le16_to_cpu(e->nport_handle);
1005 		/* mask out reserve bit */
1006 		loop_id = (loop_id & 0x7fff);
1007 		set_bit(loop_id, vha->hw->loop_id_map);
1008 		wwn = wwn_to_u64(e->port_name);
1009 
1010 		ql_dbg(ql_dbg_disc, vha, 0x20e8,
1011 		    "%s %8phC %02x:%02x:%02x CLS %x/%x lid %x \n",
1012 		    __func__, &wwn, e->port_id[2], e->port_id[1],
1013 		    e->port_id[0], e->current_login_state, e->last_login_state,
1014 		    (loop_id & 0x7fff));
1015 	}
1016 
1017 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1018 
1019 	INIT_LIST_HEAD(&h);
1020 	fcport = tf = NULL;
1021 	if (!list_empty(&vha->gnl.fcports))
1022 		list_splice_init(&vha->gnl.fcports, &h);
1023 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1024 
1025 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
1026 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1027 		list_del_init(&fcport->gnl_entry);
1028 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1029 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1030 		ea.fcport = fcport;
1031 
1032 		qla24xx_handle_gnl_done_event(vha, &ea);
1033 	}
1034 
1035 	/* create new fcport if fw has knowledge of new sessions */
1036 	for (i = 0; i < n; i++) {
1037 		port_id_t id;
1038 		u64 wwnn;
1039 
1040 		e = &vha->gnl.l[i];
1041 		wwn = wwn_to_u64(e->port_name);
1042 
1043 		found = false;
1044 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
1045 			if (!memcmp((u8 *)&wwn, fcport->port_name,
1046 			    WWN_SIZE)) {
1047 				found = true;
1048 				break;
1049 			}
1050 		}
1051 
1052 		id.b.domain = e->port_id[2];
1053 		id.b.area = e->port_id[1];
1054 		id.b.al_pa = e->port_id[0];
1055 		id.b.rsvd_1 = 0;
1056 
1057 		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
1058 			ql_dbg(ql_dbg_disc, vha, 0x2065,
1059 			    "%s %d %8phC %06x post new sess\n",
1060 			    __func__, __LINE__, (u8 *)&wwn, id.b24);
1061 			wwnn = wwn_to_u64(e->node_name);
1062 			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
1063 			    (u8 *)&wwnn, NULL, 0);
1064 		}
1065 	}
1066 
1067 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1068 	vha->gnl.sent = 0;
1069 	if (!list_empty(&vha->gnl.fcports)) {
1070 		/* retrigger gnl */
1071 		list_for_each_entry_safe(fcport, tf, &vha->gnl.fcports,
1072 		    gnl_entry) {
1073 			list_del_init(&fcport->gnl_entry);
1074 			fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1075 			if (qla24xx_post_gnl_work(vha, fcport) == QLA_SUCCESS)
1076 				break;
1077 		}
1078 	}
1079 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1080 
1081 	sp->free(sp);
1082 }
1083 
1084 int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
1085 {
1086 	srb_t *sp;
1087 	struct srb_iocb *mbx;
1088 	int rval = QLA_FUNCTION_FAILED;
1089 	unsigned long flags;
1090 	u16 *mb;
1091 
1092 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
1093 		return rval;
1094 
1095 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
1096 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
1097 
1098 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1099 	fcport->flags |= FCF_ASYNC_SENT;
1100 	qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1101 	fcport->last_rscn_gen = fcport->rscn_gen;
1102 	fcport->last_login_gen = fcport->login_gen;
1103 
1104 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
1105 	if (vha->gnl.sent) {
1106 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1107 		return QLA_SUCCESS;
1108 	}
1109 	vha->gnl.sent = 1;
1110 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1111 
1112 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1113 	if (!sp)
1114 		goto done;
1115 
1116 	sp->type = SRB_MB_IOCB;
1117 	sp->name = "gnlist";
1118 	sp->gen1 = fcport->rscn_gen;
1119 	sp->gen2 = fcport->login_gen;
1120 
1121 	mbx = &sp->u.iocb_cmd;
1122 	mbx->timeout = qla2x00_async_iocb_timeout;
1123 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
1124 
1125 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1126 	mb[0] = MBC_PORT_NODE_NAME_LIST;
1127 	mb[1] = BIT_2 | BIT_3;
1128 	mb[2] = MSW(vha->gnl.ldma);
1129 	mb[3] = LSW(vha->gnl.ldma);
1130 	mb[6] = MSW(MSD(vha->gnl.ldma));
1131 	mb[7] = LSW(MSD(vha->gnl.ldma));
1132 	mb[8] = vha->gnl.size;
1133 	mb[9] = vha->vp_idx;
1134 
1135 	sp->done = qla24xx_async_gnl_sp_done;
1136 
1137 	ql_dbg(ql_dbg_disc, vha, 0x20da,
1138 	    "Async-%s - OUT WWPN %8phC hndl %x\n",
1139 	    sp->name, fcport->port_name, sp->handle);
1140 
1141 	rval = qla2x00_start_sp(sp);
1142 	if (rval != QLA_SUCCESS)
1143 		goto done_free_sp;
1144 
1145 	return rval;
1146 
1147 done_free_sp:
1148 	sp->free(sp);
1149 done:
1150 	fcport->flags &= ~(FCF_ASYNC_ACTIVE | FCF_ASYNC_SENT);
1151 	return rval;
1152 }
1153 
1154 int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1155 {
1156 	struct qla_work_evt *e;
1157 
1158 	e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
1159 	if (!e)
1160 		return QLA_FUNCTION_FAILED;
1161 
1162 	e->u.fcport.fcport = fcport;
1163 	fcport->flags |= FCF_ASYNC_ACTIVE;
1164 	return qla2x00_post_work(vha, e);
1165 }
1166 
1167 static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
1168 {
1169 	struct scsi_qla_host *vha = sp->vha;
1170 	struct qla_hw_data *ha = vha->hw;
1171 	fc_port_t *fcport = sp->fcport;
1172 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
1173 	struct event_arg ea;
1174 
1175 	ql_dbg(ql_dbg_disc, vha, 0x20db,
1176 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
1177 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
1178 
1179 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1180 
1181 	if (res == QLA_FUNCTION_TIMEOUT)
1182 		goto done;
1183 
1184 	memset(&ea, 0, sizeof(ea));
1185 	ea.fcport = fcport;
1186 	ea.sp = sp;
1187 
1188 	qla24xx_handle_gpdb_event(vha, &ea);
1189 
1190 done:
1191 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
1192 		sp->u.iocb_cmd.u.mbx.in_dma);
1193 
1194 	sp->free(sp);
1195 }
1196 
1197 int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1198 {
1199 	struct qla_work_evt *e;
1200 
1201 	if (vha->host->active_mode == MODE_TARGET)
1202 		return QLA_FUNCTION_FAILED;
1203 
1204 	e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
1205 	if (!e)
1206 		return QLA_FUNCTION_FAILED;
1207 
1208 	e->u.fcport.fcport = fcport;
1209 
1210 	return qla2x00_post_work(vha, e);
1211 }
1212 
1213 static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
1214 {
1215 	struct scsi_qla_host *vha = sp->vha;
1216 	struct srb_iocb *lio = &sp->u.iocb_cmd;
1217 	struct event_arg ea;
1218 
1219 	ql_dbg(ql_dbg_disc, vha, 0x2129,
1220 	    "%s %8phC res %x\n", __func__,
1221 	    sp->fcport->port_name, res);
1222 
1223 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
1224 
1225 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
1226 		memset(&ea, 0, sizeof(ea));
1227 		ea.fcport = sp->fcport;
1228 		ea.data[0] = lio->u.logio.data[0];
1229 		ea.data[1] = lio->u.logio.data[1];
1230 		ea.iop[0] = lio->u.logio.iop[0];
1231 		ea.iop[1] = lio->u.logio.iop[1];
1232 		ea.sp = sp;
1233 		if (res == QLA_OS_TIMER_EXPIRED)
1234 			ea.data[0] = QLA_OS_TIMER_EXPIRED;
1235 
1236 		qla24xx_handle_prli_done_event(vha, &ea);
1237 	}
1238 
1239 	sp->free(sp);
1240 }
1241 
1242 int
1243 qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
1244 {
1245 	srb_t *sp;
1246 	struct srb_iocb *lio;
1247 	int rval = QLA_FUNCTION_FAILED;
1248 
1249 	if (!vha->flags.online) {
1250 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1251 		    __func__, __LINE__, fcport->port_name);
1252 		return rval;
1253 	}
1254 
1255 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
1256 	    fcport->fw_login_state == DSC_LS_PRLI_PEND) &&
1257 	    qla_dual_mode_enabled(vha)) {
1258 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1259 		    __func__, __LINE__, fcport->port_name);
1260 		return rval;
1261 	}
1262 
1263 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1264 	if (!sp)
1265 		return rval;
1266 
1267 	fcport->flags |= FCF_ASYNC_SENT;
1268 	fcport->logout_completed = 0;
1269 
1270 	sp->type = SRB_PRLI_CMD;
1271 	sp->name = "prli";
1272 
1273 	lio = &sp->u.iocb_cmd;
1274 	lio->timeout = qla2x00_async_iocb_timeout;
1275 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1276 
1277 	sp->done = qla2x00_async_prli_sp_done;
1278 	lio->u.logio.flags = 0;
1279 
1280 	if (NVME_TARGET(vha->hw, fcport))
1281 		lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
1282 
1283 	ql_dbg(ql_dbg_disc, vha, 0x211b,
1284 	    "Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d fc4type %x priority %x %s.\n",
1285 	    fcport->port_name, sp->handle, fcport->loop_id, fcport->d_id.b24,
1286 	    fcport->login_retry, fcport->fc4_type, vha->hw->fc4_type_priority,
1287 	    NVME_TARGET(vha->hw, fcport) ? "nvme" : "fcp");
1288 
1289 	rval = qla2x00_start_sp(sp);
1290 	if (rval != QLA_SUCCESS) {
1291 		fcport->flags |= FCF_LOGIN_NEEDED;
1292 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1293 		goto done_free_sp;
1294 	}
1295 
1296 	return rval;
1297 
1298 done_free_sp:
1299 	sp->free(sp);
1300 	fcport->flags &= ~FCF_ASYNC_SENT;
1301 	return rval;
1302 }
1303 
1304 int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1305 {
1306 	struct qla_work_evt *e;
1307 
1308 	e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
1309 	if (!e)
1310 		return QLA_FUNCTION_FAILED;
1311 
1312 	e->u.fcport.fcport = fcport;
1313 	e->u.fcport.opt = opt;
1314 	fcport->flags |= FCF_ASYNC_ACTIVE;
1315 	return qla2x00_post_work(vha, e);
1316 }
1317 
1318 int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1319 {
1320 	srb_t *sp;
1321 	struct srb_iocb *mbx;
1322 	int rval = QLA_FUNCTION_FAILED;
1323 	u16 *mb;
1324 	dma_addr_t pd_dma;
1325 	struct port_database_24xx *pd;
1326 	struct qla_hw_data *ha = vha->hw;
1327 
1328 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
1329 	    fcport->loop_id == FC_NO_LOOP_ID) {
1330 		ql_log(ql_log_warn, vha, 0xffff,
1331 		    "%s: %8phC - not sending command.\n",
1332 		    __func__, fcport->port_name);
1333 		return rval;
1334 	}
1335 
1336 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1337 	if (!sp)
1338 		goto done;
1339 
1340 	qla2x00_set_fcport_disc_state(fcport, DSC_GPDB);
1341 
1342 	fcport->flags |= FCF_ASYNC_SENT;
1343 	sp->type = SRB_MB_IOCB;
1344 	sp->name = "gpdb";
1345 	sp->gen1 = fcport->rscn_gen;
1346 	sp->gen2 = fcport->login_gen;
1347 
1348 	mbx = &sp->u.iocb_cmd;
1349 	mbx->timeout = qla2x00_async_iocb_timeout;
1350 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
1351 
1352 	pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
1353 	if (pd == NULL) {
1354 		ql_log(ql_log_warn, vha, 0xd043,
1355 		    "Failed to allocate port database structure.\n");
1356 		goto done_free_sp;
1357 	}
1358 
1359 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1360 	mb[0] = MBC_GET_PORT_DATABASE;
1361 	mb[1] = fcport->loop_id;
1362 	mb[2] = MSW(pd_dma);
1363 	mb[3] = LSW(pd_dma);
1364 	mb[6] = MSW(MSD(pd_dma));
1365 	mb[7] = LSW(MSD(pd_dma));
1366 	mb[9] = vha->vp_idx;
1367 	mb[10] = opt;
1368 
1369 	mbx->u.mbx.in = pd;
1370 	mbx->u.mbx.in_dma = pd_dma;
1371 
1372 	sp->done = qla24xx_async_gpdb_sp_done;
1373 
1374 	ql_dbg(ql_dbg_disc, vha, 0x20dc,
1375 	    "Async-%s %8phC hndl %x opt %x\n",
1376 	    sp->name, fcport->port_name, sp->handle, opt);
1377 
1378 	rval = qla2x00_start_sp(sp);
1379 	if (rval != QLA_SUCCESS)
1380 		goto done_free_sp;
1381 	return rval;
1382 
1383 done_free_sp:
1384 	if (pd)
1385 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
1386 
1387 	sp->free(sp);
1388 	fcport->flags &= ~FCF_ASYNC_SENT;
1389 done:
1390 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
1391 	qla24xx_post_gpdb_work(vha, fcport, opt);
1392 	return rval;
1393 }
1394 
1395 static
1396 void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1397 {
1398 	unsigned long flags;
1399 
1400 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1401 	ea->fcport->login_gen++;
1402 	ea->fcport->deleted = 0;
1403 	ea->fcport->logout_on_delete = 1;
1404 
1405 	if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
1406 		vha->fcport_count++;
1407 		ea->fcport->login_succ = 1;
1408 
1409 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1410 		qla24xx_sched_upd_fcport(ea->fcport);
1411 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1412 	} else if (ea->fcport->login_succ) {
1413 		/*
1414 		 * We have an existing session. A late RSCN delivery
1415 		 * must have triggered the session to be re-validate.
1416 		 * Session is still valid.
1417 		 */
1418 		ql_dbg(ql_dbg_disc, vha, 0x20d6,
1419 		    "%s %d %8phC session revalidate success\n",
1420 		    __func__, __LINE__, ea->fcport->port_name);
1421 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_COMPLETE);
1422 	}
1423 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1424 }
1425 
1426 static int	qla_chk_secure_login(scsi_qla_host_t	*vha, fc_port_t *fcport,
1427 	struct port_database_24xx *pd)
1428 {
1429 	int rc = 0;
1430 
1431 	if (pd->secure_login) {
1432 		ql_dbg(ql_dbg_disc, vha, 0x104d,
1433 		    "Secure Login established on %8phC\n",
1434 		    fcport->port_name);
1435 		fcport->flags |= FCF_FCSP_DEVICE;
1436 	} else {
1437 		ql_dbg(ql_dbg_disc, vha, 0x104d,
1438 		    "non-Secure Login %8phC",
1439 		    fcport->port_name);
1440 		fcport->flags &= ~FCF_FCSP_DEVICE;
1441 	}
1442 	if (vha->hw->flags.edif_enabled) {
1443 		if (fcport->flags & FCF_FCSP_DEVICE) {
1444 			qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_AUTH_PEND);
1445 			/* Start edif prli timer & ring doorbell for app */
1446 			fcport->edif.rx_sa_set = 0;
1447 			fcport->edif.tx_sa_set = 0;
1448 			fcport->edif.rx_sa_pending = 0;
1449 			fcport->edif.tx_sa_pending = 0;
1450 
1451 			qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
1452 			    fcport->d_id.b24);
1453 
1454 			if (DBELL_ACTIVE(vha)) {
1455 				ql_dbg(ql_dbg_disc, vha, 0x20ef,
1456 				    "%s %d %8phC EDIF: post DB_AUTH: AUTH needed\n",
1457 				    __func__, __LINE__, fcport->port_name);
1458 				fcport->edif.app_started = 1;
1459 				fcport->edif.app_sess_online = 1;
1460 
1461 				qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED,
1462 				    fcport->d_id.b24, 0, fcport);
1463 			}
1464 
1465 			rc = 1;
1466 		} else if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
1467 			ql_dbg(ql_dbg_disc, vha, 0x2117,
1468 			    "%s %d %8phC post prli\n",
1469 			    __func__, __LINE__, fcport->port_name);
1470 			qla24xx_post_prli_work(vha, fcport);
1471 			rc = 1;
1472 		}
1473 	}
1474 	return rc;
1475 }
1476 
1477 static
1478 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1479 {
1480 	fc_port_t *fcport = ea->fcport;
1481 	struct port_database_24xx *pd;
1482 	struct srb *sp = ea->sp;
1483 	uint8_t	ls;
1484 
1485 	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
1486 
1487 	fcport->flags &= ~FCF_ASYNC_SENT;
1488 
1489 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
1490 	    "%s %8phC DS %d LS %x fc4_type %x rc %x\n", __func__,
1491 	    fcport->port_name, fcport->disc_state, pd->current_login_state,
1492 	    fcport->fc4_type, ea->rc);
1493 
1494 	if (fcport->disc_state == DSC_DELETE_PEND) {
1495 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC\n",
1496 		       __func__, __LINE__, fcport->port_name);
1497 		return;
1498 	}
1499 
1500 	if (NVME_TARGET(vha->hw, fcport))
1501 		ls = pd->current_login_state >> 4;
1502 	else
1503 		ls = pd->current_login_state & 0xf;
1504 
1505 	if (ea->sp->gen2 != fcport->login_gen) {
1506 		/* target side must have changed it. */
1507 
1508 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1509 		    "%s %8phC generation changed\n",
1510 		    __func__, fcport->port_name);
1511 		return;
1512 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1513 		qla_rscn_replay(fcport);
1514 		qlt_schedule_sess_for_deletion(fcport);
1515 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
1516 		       __func__, __LINE__, fcport->port_name, ls);
1517 		return;
1518 	}
1519 
1520 	switch (ls) {
1521 	case PDS_PRLI_COMPLETE:
1522 		__qla24xx_parse_gpdb(vha, fcport, pd);
1523 		break;
1524 	case PDS_PLOGI_COMPLETE:
1525 		if (qla_chk_secure_login(vha, fcport, pd)) {
1526 			ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
1527 			       __func__, __LINE__, fcport->port_name, ls);
1528 			return;
1529 		}
1530 		fallthrough;
1531 	case PDS_PLOGI_PENDING:
1532 	case PDS_PRLI_PENDING:
1533 	case PDS_PRLI2_PENDING:
1534 		/* Set discovery state back to GNL to Relogin attempt */
1535 		if (qla_dual_mode_enabled(vha) ||
1536 		    qla_ini_mode_enabled(vha)) {
1537 			qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1538 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1539 		}
1540 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
1541 		       __func__, __LINE__, fcport->port_name, ls);
1542 		return;
1543 	case PDS_LOGO_PENDING:
1544 	case PDS_PORT_UNAVAILABLE:
1545 	default:
1546 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
1547 		    __func__, __LINE__, fcport->port_name);
1548 		qlt_schedule_sess_for_deletion(fcport);
1549 		return;
1550 	}
1551 	__qla24xx_handle_gpdb_event(vha, ea);
1552 } /* gpdb event */
1553 
1554 static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1555 {
1556 	u8 login = 0;
1557 	int rc;
1558 
1559 	if (qla_tgt_mode_enabled(vha))
1560 		return;
1561 
1562 	if (qla_dual_mode_enabled(vha)) {
1563 		if (N2N_TOPO(vha->hw)) {
1564 			u64 mywwn, wwn;
1565 
1566 			mywwn = wwn_to_u64(vha->port_name);
1567 			wwn = wwn_to_u64(fcport->port_name);
1568 			if (mywwn > wwn)
1569 				login = 1;
1570 			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1571 			    && time_after_eq(jiffies,
1572 				    fcport->plogi_nack_done_deadline))
1573 				login = 1;
1574 		} else {
1575 			login = 1;
1576 		}
1577 	} else {
1578 		/* initiator mode */
1579 		login = 1;
1580 	}
1581 
1582 	if (login && fcport->login_retry) {
1583 		fcport->login_retry--;
1584 		if (fcport->loop_id == FC_NO_LOOP_ID) {
1585 			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
1586 			rc = qla2x00_find_new_loop_id(vha, fcport);
1587 			if (rc) {
1588 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
1589 				    "%s %d %8phC post del sess - out of loopid\n",
1590 				    __func__, __LINE__, fcport->port_name);
1591 				fcport->scan_state = 0;
1592 				qlt_schedule_sess_for_deletion(fcport);
1593 				return;
1594 			}
1595 		}
1596 		ql_dbg(ql_dbg_disc, vha, 0x20bf,
1597 		    "%s %d %8phC post login\n",
1598 		    __func__, __LINE__, fcport->port_name);
1599 		qla2x00_post_async_login_work(vha, fcport, NULL);
1600 	}
1601 }
1602 
1603 int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1604 {
1605 	u16 data[2];
1606 	u64 wwn;
1607 	u16 sec;
1608 
1609 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
1610 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d fc4type %x\n",
1611 	    __func__, fcport->port_name, fcport->disc_state,
1612 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
1613 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
1614 	    fcport->login_gen, fcport->loop_id, fcport->scan_state,
1615 	    fcport->fc4_type);
1616 
1617 	if (fcport->scan_state != QLA_FCPORT_FOUND)
1618 		return 0;
1619 
1620 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
1621 	    qla_dual_mode_enabled(vha) &&
1622 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1623 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
1624 		return 0;
1625 
1626 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP &&
1627 	    !N2N_TOPO(vha->hw)) {
1628 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1629 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1630 			return 0;
1631 		}
1632 	}
1633 
1634 	/* Target won't initiate port login if fabric is present */
1635 	if (vha->host->active_mode == MODE_TARGET && !N2N_TOPO(vha->hw))
1636 		return 0;
1637 
1638 	if (fcport->flags & FCF_ASYNC_SENT) {
1639 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1640 		return 0;
1641 	}
1642 
1643 	switch (fcport->disc_state) {
1644 	case DSC_DELETED:
1645 		wwn = wwn_to_u64(fcport->node_name);
1646 		switch (vha->hw->current_topology) {
1647 		case ISP_CFG_N:
1648 			if (fcport_is_smaller(fcport)) {
1649 				/* this adapter is bigger */
1650 				if (fcport->login_retry) {
1651 					if (fcport->loop_id == FC_NO_LOOP_ID) {
1652 						qla2x00_find_new_loop_id(vha,
1653 						    fcport);
1654 						fcport->fw_login_state =
1655 						    DSC_LS_PORT_UNAVAIL;
1656 					}
1657 					fcport->login_retry--;
1658 					qla_post_els_plogi_work(vha, fcport);
1659 				} else {
1660 					ql_log(ql_log_info, vha, 0x705d,
1661 					    "Unable to reach remote port %8phC",
1662 					    fcport->port_name);
1663 				}
1664 			} else {
1665 				qla24xx_post_gnl_work(vha, fcport);
1666 			}
1667 			break;
1668 		default:
1669 			if (wwn == 0)    {
1670 				ql_dbg(ql_dbg_disc, vha, 0xffff,
1671 				    "%s %d %8phC post GNNID\n",
1672 				    __func__, __LINE__, fcport->port_name);
1673 				qla24xx_post_gnnid_work(vha, fcport);
1674 			} else if (fcport->loop_id == FC_NO_LOOP_ID) {
1675 				ql_dbg(ql_dbg_disc, vha, 0x20bd,
1676 				    "%s %d %8phC post gnl\n",
1677 				    __func__, __LINE__, fcport->port_name);
1678 				qla24xx_post_gnl_work(vha, fcport);
1679 			} else {
1680 				qla_chk_n2n_b4_login(vha, fcport);
1681 			}
1682 			break;
1683 		}
1684 		break;
1685 
1686 	case DSC_GNL:
1687 		switch (vha->hw->current_topology) {
1688 		case ISP_CFG_N:
1689 			if ((fcport->current_login_state & 0xf) == 0x6) {
1690 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1691 				    "%s %d %8phC post GPDB work\n",
1692 				    __func__, __LINE__, fcport->port_name);
1693 				fcport->chip_reset =
1694 					vha->hw->base_qpair->chip_reset;
1695 				qla24xx_post_gpdb_work(vha, fcport, 0);
1696 			}  else {
1697 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1698 				    "%s %d %8phC post %s PRLI\n",
1699 				    __func__, __LINE__, fcport->port_name,
1700 				    NVME_TARGET(vha->hw, fcport) ? "NVME" :
1701 				    "FC");
1702 				qla24xx_post_prli_work(vha, fcport);
1703 			}
1704 			break;
1705 		default:
1706 			if (fcport->login_pause) {
1707 				ql_dbg(ql_dbg_disc, vha, 0x20d8,
1708 				    "%s %d %8phC exit\n",
1709 				    __func__, __LINE__,
1710 				    fcport->port_name);
1711 				fcport->last_rscn_gen = fcport->rscn_gen;
1712 				fcport->last_login_gen = fcport->login_gen;
1713 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1714 				break;
1715 			}
1716 			qla_chk_n2n_b4_login(vha, fcport);
1717 			break;
1718 		}
1719 		break;
1720 
1721 	case DSC_LOGIN_FAILED:
1722 		if (N2N_TOPO(vha->hw))
1723 			qla_chk_n2n_b4_login(vha, fcport);
1724 		else
1725 			qlt_schedule_sess_for_deletion(fcport);
1726 		break;
1727 
1728 	case DSC_LOGIN_COMPLETE:
1729 		/* recheck login state */
1730 		data[0] = data[1] = 0;
1731 		qla2x00_post_async_adisc_work(vha, fcport, data);
1732 		break;
1733 
1734 	case DSC_LOGIN_PEND:
1735 		if (fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1736 			qla24xx_post_prli_work(vha, fcport);
1737 		break;
1738 
1739 	case DSC_UPD_FCPORT:
1740 		sec =  jiffies_to_msecs(jiffies -
1741 		    fcport->jiffies_at_registration)/1000;
1742 		if (fcport->sec_since_registration < sec && sec &&
1743 		    !(sec % 60)) {
1744 			fcport->sec_since_registration = sec;
1745 			ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
1746 			    "%s %8phC - Slow Rport registration(%d Sec)\n",
1747 			    __func__, fcport->port_name, sec);
1748 		}
1749 
1750 		if (fcport->next_disc_state != DSC_DELETE_PEND)
1751 			fcport->next_disc_state = DSC_ADISC;
1752 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1753 		break;
1754 
1755 	default:
1756 		break;
1757 	}
1758 
1759 	return 0;
1760 }
1761 
1762 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
1763     u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
1764 {
1765 	struct qla_work_evt *e;
1766 
1767 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
1768 	if (!e)
1769 		return QLA_FUNCTION_FAILED;
1770 
1771 	e->u.new_sess.id = *id;
1772 	e->u.new_sess.pla = pla;
1773 	e->u.new_sess.fc4_type = fc4_type;
1774 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
1775 	if (node_name)
1776 		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
1777 
1778 	return qla2x00_post_work(vha, e);
1779 }
1780 
1781 void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
1782 {
1783 	fc_port_t *fcport;
1784 	unsigned long flags;
1785 
1786 	switch (ea->id.b.rsvd_1) {
1787 	case RSCN_PORT_ADDR:
1788 		fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
1789 		if (fcport) {
1790 			if (fcport->flags & FCF_FCP2_DEVICE) {
1791 				ql_dbg(ql_dbg_disc, vha, 0x2115,
1792 				       "Delaying session delete for FCP2 portid=%06x %8phC ",
1793 					fcport->d_id.b24, fcport->port_name);
1794 				return;
1795 			}
1796 
1797 			if (vha->hw->flags.edif_enabled && DBELL_ACTIVE(vha)) {
1798 				/*
1799 				 * On ipsec start by remote port, Target port
1800 				 * may use RSCN to trigger initiator to
1801 				 * relogin. If driver is already in the
1802 				 * process of a relogin, then ignore the RSCN
1803 				 * and allow the current relogin to continue.
1804 				 * This reduces thrashing of the connection.
1805 				 */
1806 				if (atomic_read(&fcport->state) == FCS_ONLINE) {
1807 					/*
1808 					 * If state = online, then set scan_needed=1 to do relogin.
1809 					 * Otherwise we're already in the middle of a relogin
1810 					 */
1811 					fcport->scan_needed = 1;
1812 					fcport->rscn_gen++;
1813 				}
1814 			} else {
1815 				fcport->scan_needed = 1;
1816 				fcport->rscn_gen++;
1817 			}
1818 		}
1819 		break;
1820 	case RSCN_AREA_ADDR:
1821 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1822 			if (fcport->flags & FCF_FCP2_DEVICE)
1823 				continue;
1824 
1825 			if ((ea->id.b24 & 0xffff00) == (fcport->d_id.b24 & 0xffff00)) {
1826 				fcport->scan_needed = 1;
1827 				fcport->rscn_gen++;
1828 			}
1829 		}
1830 		break;
1831 	case RSCN_DOM_ADDR:
1832 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1833 			if (fcport->flags & FCF_FCP2_DEVICE)
1834 				continue;
1835 
1836 			if ((ea->id.b24 & 0xff0000) == (fcport->d_id.b24 & 0xff0000)) {
1837 				fcport->scan_needed = 1;
1838 				fcport->rscn_gen++;
1839 			}
1840 		}
1841 		break;
1842 	case RSCN_FAB_ADDR:
1843 	default:
1844 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1845 			if (fcport->flags & FCF_FCP2_DEVICE)
1846 				continue;
1847 
1848 			fcport->scan_needed = 1;
1849 			fcport->rscn_gen++;
1850 		}
1851 		break;
1852 	}
1853 
1854 	spin_lock_irqsave(&vha->work_lock, flags);
1855 	if (vha->scan.scan_flags == 0) {
1856 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
1857 		vha->scan.scan_flags |= SF_QUEUED;
1858 		schedule_delayed_work(&vha->scan.scan_work, 5);
1859 	}
1860 	spin_unlock_irqrestore(&vha->work_lock, flags);
1861 }
1862 
1863 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
1864 	struct event_arg *ea)
1865 {
1866 	fc_port_t *fcport = ea->fcport;
1867 
1868 	if (test_bit(UNLOADING, &vha->dpc_flags))
1869 		return;
1870 
1871 	ql_dbg(ql_dbg_disc, vha, 0x2102,
1872 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
1873 	    __func__, fcport->port_name, fcport->disc_state,
1874 	    fcport->fw_login_state, fcport->login_pause,
1875 	    fcport->deleted, fcport->conflict,
1876 	    fcport->last_rscn_gen, fcport->rscn_gen,
1877 	    fcport->last_login_gen, fcport->login_gen,
1878 	    fcport->flags);
1879 
1880 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
1881 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
1882 		    __func__, __LINE__, fcport->port_name);
1883 		qla24xx_post_gnl_work(vha, fcport);
1884 		return;
1885 	}
1886 
1887 	qla24xx_fcport_handle_login(vha, fcport);
1888 }
1889 
1890 void qla_handle_els_plogi_done(scsi_qla_host_t *vha,
1891 				      struct event_arg *ea)
1892 {
1893 	if (N2N_TOPO(vha->hw) && fcport_is_smaller(ea->fcport) &&
1894 	    vha->hw->flags.edif_enabled) {
1895 		/* check to see if App support Secure */
1896 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1897 		return;
1898 	}
1899 
1900 	/* for pure Target Mode, PRLI will not be initiated */
1901 	if (vha->host->active_mode == MODE_TARGET)
1902 		return;
1903 
1904 	ql_dbg(ql_dbg_disc, vha, 0x2118,
1905 	    "%s %d %8phC post PRLI\n",
1906 	    __func__, __LINE__, ea->fcport->port_name);
1907 	qla24xx_post_prli_work(vha, ea->fcport);
1908 }
1909 
1910 /*
1911  * RSCN(s) came in for this fcport, but the RSCN(s) was not able
1912  * to be consumed by the fcport
1913  */
1914 void qla_rscn_replay(fc_port_t *fcport)
1915 {
1916 	struct event_arg ea;
1917 
1918 	switch (fcport->disc_state) {
1919 	case DSC_DELETE_PEND:
1920 		return;
1921 	default:
1922 		break;
1923 	}
1924 
1925 	if (fcport->scan_needed) {
1926 		memset(&ea, 0, sizeof(ea));
1927 		ea.id = fcport->d_id;
1928 		ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
1929 		qla2x00_handle_rscn(fcport->vha, &ea);
1930 	}
1931 }
1932 
1933 static void
1934 qla2x00_tmf_iocb_timeout(void *data)
1935 {
1936 	srb_t *sp = data;
1937 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1938 	int rc, h;
1939 	unsigned long flags;
1940 
1941 	rc = qla24xx_async_abort_cmd(sp, false);
1942 	if (rc) {
1943 		spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
1944 		for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
1945 			if (sp->qpair->req->outstanding_cmds[h] == sp) {
1946 				sp->qpair->req->outstanding_cmds[h] = NULL;
1947 				break;
1948 			}
1949 		}
1950 		spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
1951 		tmf->u.tmf.comp_status = cpu_to_le16(CS_TIMEOUT);
1952 		tmf->u.tmf.data = QLA_FUNCTION_FAILED;
1953 		complete(&tmf->u.tmf.comp);
1954 	}
1955 }
1956 
1957 static void qla2x00_tmf_sp_done(srb_t *sp, int res)
1958 {
1959 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1960 
1961 	complete(&tmf->u.tmf.comp);
1962 }
1963 
1964 int
1965 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
1966 	uint32_t tag)
1967 {
1968 	struct scsi_qla_host *vha = fcport->vha;
1969 	struct srb_iocb *tm_iocb;
1970 	srb_t *sp;
1971 	int rval = QLA_FUNCTION_FAILED;
1972 
1973 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1974 	if (!sp)
1975 		goto done;
1976 
1977 	tm_iocb = &sp->u.iocb_cmd;
1978 	sp->type = SRB_TM_CMD;
1979 	sp->name = "tmf";
1980 
1981 	tm_iocb->timeout = qla2x00_tmf_iocb_timeout;
1982 	init_completion(&tm_iocb->u.tmf.comp);
1983 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
1984 
1985 	tm_iocb->u.tmf.flags = flags;
1986 	tm_iocb->u.tmf.lun = lun;
1987 	tm_iocb->u.tmf.data = tag;
1988 	sp->done = qla2x00_tmf_sp_done;
1989 
1990 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
1991 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
1992 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
1993 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
1994 
1995 	rval = qla2x00_start_sp(sp);
1996 	if (rval != QLA_SUCCESS)
1997 		goto done_free_sp;
1998 	wait_for_completion(&tm_iocb->u.tmf.comp);
1999 
2000 	rval = tm_iocb->u.tmf.data;
2001 
2002 	if (rval != QLA_SUCCESS) {
2003 		ql_log(ql_log_warn, vha, 0x8030,
2004 		    "TM IOCB failed (%x).\n", rval);
2005 	}
2006 
2007 	if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
2008 		flags = tm_iocb->u.tmf.flags;
2009 		lun = (uint16_t)tm_iocb->u.tmf.lun;
2010 
2011 		/* Issue Marker IOCB */
2012 		qla2x00_marker(vha, vha->hw->base_qpair,
2013 		    fcport->loop_id, lun,
2014 		    flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
2015 	}
2016 
2017 done_free_sp:
2018 	sp->free(sp);
2019 	fcport->flags &= ~FCF_ASYNC_SENT;
2020 done:
2021 	return rval;
2022 }
2023 
2024 int
2025 qla24xx_async_abort_command(srb_t *sp)
2026 {
2027 	unsigned long   flags = 0;
2028 
2029 	uint32_t	handle;
2030 	fc_port_t	*fcport = sp->fcport;
2031 	struct qla_qpair *qpair = sp->qpair;
2032 	struct scsi_qla_host *vha = fcport->vha;
2033 	struct req_que *req = qpair->req;
2034 
2035 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2036 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
2037 		if (req->outstanding_cmds[handle] == sp)
2038 			break;
2039 	}
2040 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2041 
2042 	if (handle == req->num_outstanding_cmds) {
2043 		/* Command not found. */
2044 		return QLA_ERR_NOT_FOUND;
2045 	}
2046 	if (sp->type == SRB_FXIOCB_DCMD)
2047 		return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
2048 		    FXDISC_ABORT_IOCTL);
2049 
2050 	return qla24xx_async_abort_cmd(sp, true);
2051 }
2052 
2053 static void
2054 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
2055 {
2056 	struct srb *sp;
2057 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
2058 		  ea->data[0]);
2059 
2060 	switch (ea->data[0]) {
2061 	case MBS_COMMAND_COMPLETE:
2062 		ql_dbg(ql_dbg_disc, vha, 0x2118,
2063 		    "%s %d %8phC post gpdb\n",
2064 		    __func__, __LINE__, ea->fcport->port_name);
2065 
2066 		ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2067 		ea->fcport->logout_on_delete = 1;
2068 		ea->fcport->nvme_prli_service_param = ea->iop[0];
2069 		if (ea->iop[0] & NVME_PRLI_SP_FIRST_BURST)
2070 			ea->fcport->nvme_first_burst_size =
2071 			    (ea->iop[1] & 0xffff) * 512;
2072 		else
2073 			ea->fcport->nvme_first_burst_size = 0;
2074 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
2075 		break;
2076 	default:
2077 		if ((ea->iop[0] == LSC_SCODE_ELS_REJECT) &&
2078 		    (ea->iop[1] == 0x50000)) {   /* reson 5=busy expl:0x0 */
2079 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2080 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
2081 			break;
2082 		}
2083 
2084 		sp = ea->sp;
2085 		ql_dbg(ql_dbg_disc, vha, 0x2118,
2086 		       "%s %d %8phC priority %s, fc4type %x prev try %s\n",
2087 		       __func__, __LINE__, ea->fcport->port_name,
2088 		       vha->hw->fc4_type_priority == FC4_PRIORITY_FCP ?
2089 		       "FCP" : "NVMe", ea->fcport->fc4_type,
2090 		       (sp->u.iocb_cmd.u.logio.flags & SRB_LOGIN_NVME_PRLI) ?
2091 			"NVME" : "FCP");
2092 
2093 		if (NVME_FCP_TARGET(ea->fcport)) {
2094 			if (sp->u.iocb_cmd.u.logio.flags & SRB_LOGIN_NVME_PRLI)
2095 				ea->fcport->do_prli_nvme = 0;
2096 			else
2097 				ea->fcport->do_prli_nvme = 1;
2098 		} else {
2099 			ea->fcport->do_prli_nvme = 0;
2100 		}
2101 
2102 		if (N2N_TOPO(vha->hw)) {
2103 			if (ea->fcport->n2n_link_reset_cnt <
2104 			    vha->hw->login_retry_count) {
2105 				ea->fcport->n2n_link_reset_cnt++;
2106 				vha->relogin_jif = jiffies + 2 * HZ;
2107 				/*
2108 				 * PRLI failed. Reset link to kick start
2109 				 * state machine
2110 				 */
2111 				set_bit(N2N_LINK_RESET, &vha->dpc_flags);
2112 				qla2xxx_wake_dpc(vha);
2113 			} else {
2114 				ql_log(ql_log_warn, vha, 0x2119,
2115 				       "%s %d %8phC Unable to reconnect\n",
2116 				       __func__, __LINE__,
2117 				       ea->fcport->port_name);
2118 			}
2119 		} else {
2120 			/*
2121 			 * switch connect. login failed. Take connection down
2122 			 * and allow relogin to retrigger
2123 			 */
2124 			ea->fcport->flags &= ~FCF_ASYNC_SENT;
2125 			ea->fcport->keep_nport_handle = 0;
2126 			ea->fcport->logout_on_delete = 1;
2127 			qlt_schedule_sess_for_deletion(ea->fcport);
2128 		}
2129 		break;
2130 	}
2131 }
2132 
2133 void
2134 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
2135 {
2136 	port_id_t cid;	/* conflict Nport id */
2137 	u16 lid;
2138 	struct fc_port *conflict_fcport;
2139 	unsigned long flags;
2140 	struct fc_port *fcport = ea->fcport;
2141 
2142 	ql_dbg(ql_dbg_disc, vha, 0xffff,
2143 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
2144 	    __func__, fcport->port_name, fcport->disc_state,
2145 	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
2146 	    ea->sp->gen1, fcport->rscn_gen,
2147 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
2148 
2149 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
2150 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
2151 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
2152 		    "%s %d %8phC Remote is trying to login\n",
2153 		    __func__, __LINE__, fcport->port_name);
2154 		return;
2155 	}
2156 
2157 	if ((fcport->disc_state == DSC_DELETE_PEND) ||
2158 	    (fcport->disc_state == DSC_DELETED)) {
2159 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2160 		return;
2161 	}
2162 
2163 	if (ea->sp->gen2 != fcport->login_gen) {
2164 		/* target side must have changed it. */
2165 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
2166 		    "%s %8phC generation changed\n",
2167 		    __func__, fcport->port_name);
2168 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2169 		return;
2170 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
2171 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
2172 		    "%s %8phC RSCN generation changed\n",
2173 		    __func__, fcport->port_name);
2174 		qla_rscn_replay(fcport);
2175 		qlt_schedule_sess_for_deletion(fcport);
2176 		return;
2177 	}
2178 
2179 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
2180 		  ea->data[0]);
2181 
2182 	switch (ea->data[0]) {
2183 	case MBS_COMMAND_COMPLETE:
2184 		/*
2185 		 * Driver must validate login state - If PRLI not complete,
2186 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
2187 		 * requests.
2188 		 */
2189 		if (vha->hw->flags.edif_enabled) {
2190 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2191 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
2192 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2193 			ea->fcport->logout_on_delete = 1;
2194 			ea->fcport->send_els_logo = 0;
2195 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
2196 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
2197 
2198 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
2199 		} else {
2200 			if (NVME_TARGET(vha->hw, fcport)) {
2201 				ql_dbg(ql_dbg_disc, vha, 0x2117,
2202 				    "%s %d %8phC post prli\n",
2203 				    __func__, __LINE__, fcport->port_name);
2204 				qla24xx_post_prli_work(vha, fcport);
2205 			} else {
2206 				ql_dbg(ql_dbg_disc, vha, 0x20ea,
2207 				    "%s %d %8phC LoopID 0x%x in use with %06x. post gpdb\n",
2208 				    __func__, __LINE__, fcport->port_name,
2209 				    fcport->loop_id, fcport->d_id.b24);
2210 
2211 				set_bit(fcport->loop_id, vha->hw->loop_id_map);
2212 				spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
2213 				fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2214 				fcport->logout_on_delete = 1;
2215 				fcport->send_els_logo = 0;
2216 				fcport->fw_login_state = DSC_LS_PRLI_COMP;
2217 				spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
2218 
2219 				qla24xx_post_gpdb_work(vha, fcport, 0);
2220 			}
2221 		}
2222 		break;
2223 	case MBS_COMMAND_ERROR:
2224 		ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
2225 		    __func__, __LINE__, ea->fcport->port_name, ea->data[1]);
2226 
2227 		ea->fcport->flags &= ~FCF_ASYNC_SENT;
2228 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_FAILED);
2229 		if (ea->data[1] & QLA_LOGIO_LOGIN_RETRIED)
2230 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2231 		else
2232 			qla2x00_mark_device_lost(vha, ea->fcport, 1);
2233 		break;
2234 	case MBS_LOOP_ID_USED:
2235 		/* data[1] = IO PARAM 1 = nport ID  */
2236 		cid.b.domain = (ea->iop[1] >> 16) & 0xff;
2237 		cid.b.area   = (ea->iop[1] >>  8) & 0xff;
2238 		cid.b.al_pa  = ea->iop[1] & 0xff;
2239 		cid.b.rsvd_1 = 0;
2240 
2241 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
2242 		    "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
2243 		    __func__, __LINE__, ea->fcport->port_name,
2244 		    ea->fcport->loop_id, cid.b24);
2245 
2246 		set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2247 		ea->fcport->loop_id = FC_NO_LOOP_ID;
2248 		qla24xx_post_gnl_work(vha, ea->fcport);
2249 		break;
2250 	case MBS_PORT_ID_USED:
2251 		lid = ea->iop[1] & 0xffff;
2252 		qlt_find_sess_invalidate_other(vha,
2253 		    wwn_to_u64(ea->fcport->port_name),
2254 		    ea->fcport->d_id, lid, &conflict_fcport);
2255 
2256 		if (conflict_fcport) {
2257 			/*
2258 			 * Another fcport share the same loop_id/nport id.
2259 			 * Conflict fcport needs to finish cleanup before this
2260 			 * fcport can proceed to login.
2261 			 */
2262 			conflict_fcport->conflict = ea->fcport;
2263 			ea->fcport->login_pause = 1;
2264 
2265 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2266 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
2267 			    __func__, __LINE__, ea->fcport->port_name,
2268 			    ea->fcport->d_id.b24, lid);
2269 		} else {
2270 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2271 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
2272 			    __func__, __LINE__, ea->fcport->port_name,
2273 			    ea->fcport->d_id.b24, lid);
2274 
2275 			qla2x00_clear_loop_id(ea->fcport);
2276 			set_bit(lid, vha->hw->loop_id_map);
2277 			ea->fcport->loop_id = lid;
2278 			ea->fcport->keep_nport_handle = 0;
2279 			ea->fcport->logout_on_delete = 1;
2280 			qlt_schedule_sess_for_deletion(ea->fcport);
2281 		}
2282 		break;
2283 	}
2284 	return;
2285 }
2286 
2287 /****************************************************************************/
2288 /*                QLogic ISP2x00 Hardware Support Functions.                */
2289 /****************************************************************************/
2290 
2291 static int
2292 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
2293 {
2294 	int rval = QLA_SUCCESS;
2295 	struct qla_hw_data *ha = vha->hw;
2296 	uint32_t idc_major_ver, idc_minor_ver;
2297 	uint16_t config[4];
2298 
2299 	qla83xx_idc_lock(vha, 0);
2300 
2301 	/* SV: TODO: Assign initialization timeout from
2302 	 * flash-info / other param
2303 	 */
2304 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
2305 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
2306 
2307 	/* Set our fcoe function presence */
2308 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
2309 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
2310 		    "Error while setting DRV-Presence.\n");
2311 		rval = QLA_FUNCTION_FAILED;
2312 		goto exit;
2313 	}
2314 
2315 	/* Decide the reset ownership */
2316 	qla83xx_reset_ownership(vha);
2317 
2318 	/*
2319 	 * On first protocol driver load:
2320 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
2321 	 * register.
2322 	 * Others: Check compatibility with current IDC Major version.
2323 	 */
2324 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
2325 	if (ha->flags.nic_core_reset_owner) {
2326 		/* Set IDC Major version */
2327 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
2328 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
2329 
2330 		/* Clearing IDC-Lock-Recovery register */
2331 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
2332 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
2333 		/*
2334 		 * Clear further IDC participation if we are not compatible with
2335 		 * the current IDC Major Version.
2336 		 */
2337 		ql_log(ql_log_warn, vha, 0xb07d,
2338 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
2339 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
2340 		__qla83xx_clear_drv_presence(vha);
2341 		rval = QLA_FUNCTION_FAILED;
2342 		goto exit;
2343 	}
2344 	/* Each function sets its supported Minor version. */
2345 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
2346 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
2347 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
2348 
2349 	if (ha->flags.nic_core_reset_owner) {
2350 		memset(config, 0, sizeof(config));
2351 		if (!qla81xx_get_port_config(vha, config))
2352 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
2353 			    QLA8XXX_DEV_READY);
2354 	}
2355 
2356 	rval = qla83xx_idc_state_handler(vha);
2357 
2358 exit:
2359 	qla83xx_idc_unlock(vha, 0);
2360 
2361 	return rval;
2362 }
2363 
2364 /*
2365 * qla2x00_initialize_adapter
2366 *      Initialize board.
2367 *
2368 * Input:
2369 *      ha = adapter block pointer.
2370 *
2371 * Returns:
2372 *      0 = success
2373 */
2374 int
2375 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
2376 {
2377 	int	rval;
2378 	struct qla_hw_data *ha = vha->hw;
2379 	struct req_que *req = ha->req_q_map[0];
2380 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2381 
2382 	memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
2383 	memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
2384 
2385 	/* Clear adapter flags. */
2386 	vha->flags.online = 0;
2387 	ha->flags.chip_reset_done = 0;
2388 	vha->flags.reset_active = 0;
2389 	ha->flags.pci_channel_io_perm_failure = 0;
2390 	ha->flags.eeh_busy = 0;
2391 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
2392 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2393 	atomic_set(&vha->loop_state, LOOP_DOWN);
2394 	vha->device_flags = DFLG_NO_CABLE;
2395 	vha->dpc_flags = 0;
2396 	vha->flags.management_server_logged_in = 0;
2397 	vha->marker_needed = 0;
2398 	ha->isp_abort_cnt = 0;
2399 	ha->beacon_blink_led = 0;
2400 
2401 	set_bit(0, ha->req_qid_map);
2402 	set_bit(0, ha->rsp_qid_map);
2403 
2404 	ql_dbg(ql_dbg_init, vha, 0x0040,
2405 	    "Configuring PCI space...\n");
2406 	rval = ha->isp_ops->pci_config(vha);
2407 	if (rval) {
2408 		ql_log(ql_log_warn, vha, 0x0044,
2409 		    "Unable to configure PCI space.\n");
2410 		return (rval);
2411 	}
2412 
2413 	ha->isp_ops->reset_chip(vha);
2414 
2415 	/* Check for secure flash support */
2416 	if (IS_QLA28XX(ha)) {
2417 		if (rd_reg_word(&reg->mailbox12) & BIT_0)
2418 			ha->flags.secure_adapter = 1;
2419 		ql_log(ql_log_info, vha, 0xffff, "Secure Adapter: %s\n",
2420 		    (ha->flags.secure_adapter) ? "Yes" : "No");
2421 	}
2422 
2423 
2424 	rval = qla2xxx_get_flash_info(vha);
2425 	if (rval) {
2426 		ql_log(ql_log_fatal, vha, 0x004f,
2427 		    "Unable to validate FLASH data.\n");
2428 		return rval;
2429 	}
2430 
2431 	if (IS_QLA8044(ha)) {
2432 		qla8044_read_reset_template(vha);
2433 
2434 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
2435 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
2436 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
2437 		 * should honor the reset. */
2438 		if (ql2xdontresethba == 1)
2439 			qla8044_set_idc_dontreset(vha);
2440 	}
2441 
2442 	ha->isp_ops->get_flash_version(vha, req->ring);
2443 	ql_dbg(ql_dbg_init, vha, 0x0061,
2444 	    "Configure NVRAM parameters...\n");
2445 
2446 	/* Let priority default to FCP, can be overridden by nvram_config */
2447 	ha->fc4_type_priority = FC4_PRIORITY_FCP;
2448 
2449 	ha->isp_ops->nvram_config(vha);
2450 
2451 	if (ha->fc4_type_priority != FC4_PRIORITY_FCP &&
2452 	    ha->fc4_type_priority != FC4_PRIORITY_NVME)
2453 		ha->fc4_type_priority = FC4_PRIORITY_FCP;
2454 
2455 	ql_log(ql_log_info, vha, 0xffff, "FC4 priority set to %s\n",
2456 	       ha->fc4_type_priority == FC4_PRIORITY_FCP ? "FCP" : "NVMe");
2457 
2458 	if (ha->flags.disable_serdes) {
2459 		/* Mask HBA via NVRAM settings? */
2460 		ql_log(ql_log_info, vha, 0x0077,
2461 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
2462 		return QLA_FUNCTION_FAILED;
2463 	}
2464 
2465 	ql_dbg(ql_dbg_init, vha, 0x0078,
2466 	    "Verifying loaded RISC code...\n");
2467 
2468 	/* If smartsan enabled then require fdmi and rdp enabled */
2469 	if (ql2xsmartsan) {
2470 		ql2xfdmienable = 1;
2471 		ql2xrdpenable = 1;
2472 	}
2473 
2474 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
2475 		rval = ha->isp_ops->chip_diag(vha);
2476 		if (rval)
2477 			return (rval);
2478 		rval = qla2x00_setup_chip(vha);
2479 		if (rval)
2480 			return (rval);
2481 	}
2482 
2483 	if (IS_QLA84XX(ha)) {
2484 		ha->cs84xx = qla84xx_get_chip(vha);
2485 		if (!ha->cs84xx) {
2486 			ql_log(ql_log_warn, vha, 0x00d0,
2487 			    "Unable to configure ISP84XX.\n");
2488 			return QLA_FUNCTION_FAILED;
2489 		}
2490 	}
2491 
2492 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
2493 		rval = qla2x00_init_rings(vha);
2494 
2495 	/* No point in continuing if firmware initialization failed. */
2496 	if (rval != QLA_SUCCESS)
2497 		return rval;
2498 
2499 	ha->flags.chip_reset_done = 1;
2500 
2501 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
2502 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
2503 		rval = qla84xx_init_chip(vha);
2504 		if (rval != QLA_SUCCESS) {
2505 			ql_log(ql_log_warn, vha, 0x00d4,
2506 			    "Unable to initialize ISP84XX.\n");
2507 			qla84xx_put_chip(vha);
2508 		}
2509 	}
2510 
2511 	/* Load the NIC Core f/w if we are the first protocol driver. */
2512 	if (IS_QLA8031(ha)) {
2513 		rval = qla83xx_nic_core_fw_load(vha);
2514 		if (rval)
2515 			ql_log(ql_log_warn, vha, 0x0124,
2516 			    "Error in initializing NIC Core f/w.\n");
2517 	}
2518 
2519 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
2520 		qla24xx_read_fcp_prio_cfg(vha);
2521 
2522 	if (IS_P3P_TYPE(ha))
2523 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
2524 	else
2525 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
2526 
2527 	return (rval);
2528 }
2529 
2530 /**
2531  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
2532  * @vha: HA context
2533  *
2534  * Returns 0 on success.
2535  */
2536 int
2537 qla2100_pci_config(scsi_qla_host_t *vha)
2538 {
2539 	uint16_t w;
2540 	unsigned long flags;
2541 	struct qla_hw_data *ha = vha->hw;
2542 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2543 
2544 	pci_set_master(ha->pdev);
2545 	pci_try_set_mwi(ha->pdev);
2546 
2547 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2548 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2549 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2550 
2551 	pci_disable_rom(ha->pdev);
2552 
2553 	/* Get PCI bus information. */
2554 	spin_lock_irqsave(&ha->hardware_lock, flags);
2555 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2556 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2557 
2558 	return QLA_SUCCESS;
2559 }
2560 
2561 /**
2562  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
2563  * @vha: HA context
2564  *
2565  * Returns 0 on success.
2566  */
2567 int
2568 qla2300_pci_config(scsi_qla_host_t *vha)
2569 {
2570 	uint16_t	w;
2571 	unsigned long   flags = 0;
2572 	uint32_t	cnt;
2573 	struct qla_hw_data *ha = vha->hw;
2574 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2575 
2576 	pci_set_master(ha->pdev);
2577 	pci_try_set_mwi(ha->pdev);
2578 
2579 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2580 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2581 
2582 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
2583 		w &= ~PCI_COMMAND_INTX_DISABLE;
2584 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2585 
2586 	/*
2587 	 * If this is a 2300 card and not 2312, reset the
2588 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
2589 	 * the 2310 also reports itself as a 2300 so we need to get the
2590 	 * fb revision level -- a 6 indicates it really is a 2300 and
2591 	 * not a 2310.
2592 	 */
2593 	if (IS_QLA2300(ha)) {
2594 		spin_lock_irqsave(&ha->hardware_lock, flags);
2595 
2596 		/* Pause RISC. */
2597 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2598 		for (cnt = 0; cnt < 30000; cnt++) {
2599 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
2600 				break;
2601 
2602 			udelay(10);
2603 		}
2604 
2605 		/* Select FPM registers. */
2606 		wrt_reg_word(&reg->ctrl_status, 0x20);
2607 		rd_reg_word(&reg->ctrl_status);
2608 
2609 		/* Get the fb rev level */
2610 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
2611 
2612 		if (ha->fb_rev == FPM_2300)
2613 			pci_clear_mwi(ha->pdev);
2614 
2615 		/* Deselect FPM registers. */
2616 		wrt_reg_word(&reg->ctrl_status, 0x0);
2617 		rd_reg_word(&reg->ctrl_status);
2618 
2619 		/* Release RISC module. */
2620 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2621 		for (cnt = 0; cnt < 30000; cnt++) {
2622 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
2623 				break;
2624 
2625 			udelay(10);
2626 		}
2627 
2628 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
2629 	}
2630 
2631 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2632 
2633 	pci_disable_rom(ha->pdev);
2634 
2635 	/* Get PCI bus information. */
2636 	spin_lock_irqsave(&ha->hardware_lock, flags);
2637 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2638 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2639 
2640 	return QLA_SUCCESS;
2641 }
2642 
2643 /**
2644  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
2645  * @vha: HA context
2646  *
2647  * Returns 0 on success.
2648  */
2649 int
2650 qla24xx_pci_config(scsi_qla_host_t *vha)
2651 {
2652 	uint16_t w;
2653 	unsigned long flags = 0;
2654 	struct qla_hw_data *ha = vha->hw;
2655 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2656 
2657 	pci_set_master(ha->pdev);
2658 	pci_try_set_mwi(ha->pdev);
2659 
2660 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2661 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2662 	w &= ~PCI_COMMAND_INTX_DISABLE;
2663 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2664 
2665 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2666 
2667 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
2668 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
2669 		pcix_set_mmrbc(ha->pdev, 2048);
2670 
2671 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2672 	if (pci_is_pcie(ha->pdev))
2673 		pcie_set_readrq(ha->pdev, 4096);
2674 
2675 	pci_disable_rom(ha->pdev);
2676 
2677 	ha->chip_revision = ha->pdev->revision;
2678 
2679 	/* Get PCI bus information. */
2680 	spin_lock_irqsave(&ha->hardware_lock, flags);
2681 	ha->pci_attr = rd_reg_dword(&reg->ctrl_status);
2682 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2683 
2684 	return QLA_SUCCESS;
2685 }
2686 
2687 /**
2688  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
2689  * @vha: HA context
2690  *
2691  * Returns 0 on success.
2692  */
2693 int
2694 qla25xx_pci_config(scsi_qla_host_t *vha)
2695 {
2696 	uint16_t w;
2697 	struct qla_hw_data *ha = vha->hw;
2698 
2699 	pci_set_master(ha->pdev);
2700 	pci_try_set_mwi(ha->pdev);
2701 
2702 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2703 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2704 	w &= ~PCI_COMMAND_INTX_DISABLE;
2705 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2706 
2707 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2708 	if (pci_is_pcie(ha->pdev))
2709 		pcie_set_readrq(ha->pdev, 4096);
2710 
2711 	pci_disable_rom(ha->pdev);
2712 
2713 	ha->chip_revision = ha->pdev->revision;
2714 
2715 	return QLA_SUCCESS;
2716 }
2717 
2718 /**
2719  * qla2x00_isp_firmware() - Choose firmware image.
2720  * @vha: HA context
2721  *
2722  * Returns 0 on success.
2723  */
2724 static int
2725 qla2x00_isp_firmware(scsi_qla_host_t *vha)
2726 {
2727 	int  rval;
2728 	uint16_t loop_id, topo, sw_cap;
2729 	uint8_t domain, area, al_pa;
2730 	struct qla_hw_data *ha = vha->hw;
2731 
2732 	/* Assume loading risc code */
2733 	rval = QLA_FUNCTION_FAILED;
2734 
2735 	if (ha->flags.disable_risc_code_load) {
2736 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
2737 
2738 		/* Verify checksum of loaded RISC code. */
2739 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
2740 		if (rval == QLA_SUCCESS) {
2741 			/* And, verify we are not in ROM code. */
2742 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2743 			    &area, &domain, &topo, &sw_cap);
2744 		}
2745 	}
2746 
2747 	if (rval)
2748 		ql_dbg(ql_dbg_init, vha, 0x007a,
2749 		    "**** Load RISC code ****.\n");
2750 
2751 	return (rval);
2752 }
2753 
2754 /**
2755  * qla2x00_reset_chip() - Reset ISP chip.
2756  * @vha: HA context
2757  *
2758  * Returns 0 on success.
2759  */
2760 int
2761 qla2x00_reset_chip(scsi_qla_host_t *vha)
2762 {
2763 	unsigned long   flags = 0;
2764 	struct qla_hw_data *ha = vha->hw;
2765 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2766 	uint32_t	cnt;
2767 	uint16_t	cmd;
2768 	int rval = QLA_FUNCTION_FAILED;
2769 
2770 	if (unlikely(pci_channel_offline(ha->pdev)))
2771 		return rval;
2772 
2773 	ha->isp_ops->disable_intrs(ha);
2774 
2775 	spin_lock_irqsave(&ha->hardware_lock, flags);
2776 
2777 	/* Turn off master enable */
2778 	cmd = 0;
2779 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
2780 	cmd &= ~PCI_COMMAND_MASTER;
2781 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2782 
2783 	if (!IS_QLA2100(ha)) {
2784 		/* Pause RISC. */
2785 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2786 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
2787 			for (cnt = 0; cnt < 30000; cnt++) {
2788 				if ((rd_reg_word(&reg->hccr) &
2789 				    HCCR_RISC_PAUSE) != 0)
2790 					break;
2791 				udelay(100);
2792 			}
2793 		} else {
2794 			rd_reg_word(&reg->hccr);	/* PCI Posting. */
2795 			udelay(10);
2796 		}
2797 
2798 		/* Select FPM registers. */
2799 		wrt_reg_word(&reg->ctrl_status, 0x20);
2800 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2801 
2802 		/* FPM Soft Reset. */
2803 		wrt_reg_word(&reg->fpm_diag_config, 0x100);
2804 		rd_reg_word(&reg->fpm_diag_config);	/* PCI Posting. */
2805 
2806 		/* Toggle Fpm Reset. */
2807 		if (!IS_QLA2200(ha)) {
2808 			wrt_reg_word(&reg->fpm_diag_config, 0x0);
2809 			rd_reg_word(&reg->fpm_diag_config); /* PCI Posting. */
2810 		}
2811 
2812 		/* Select frame buffer registers. */
2813 		wrt_reg_word(&reg->ctrl_status, 0x10);
2814 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2815 
2816 		/* Reset frame buffer FIFOs. */
2817 		if (IS_QLA2200(ha)) {
2818 			WRT_FB_CMD_REG(ha, reg, 0xa000);
2819 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
2820 		} else {
2821 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
2822 
2823 			/* Read back fb_cmd until zero or 3 seconds max */
2824 			for (cnt = 0; cnt < 3000; cnt++) {
2825 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
2826 					break;
2827 				udelay(100);
2828 			}
2829 		}
2830 
2831 		/* Select RISC module registers. */
2832 		wrt_reg_word(&reg->ctrl_status, 0);
2833 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2834 
2835 		/* Reset RISC processor. */
2836 		wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2837 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2838 
2839 		/* Release RISC processor. */
2840 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2841 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2842 	}
2843 
2844 	wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
2845 	wrt_reg_word(&reg->hccr, HCCR_CLR_HOST_INT);
2846 
2847 	/* Reset ISP chip. */
2848 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2849 
2850 	/* Wait for RISC to recover from reset. */
2851 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2852 		/*
2853 		 * It is necessary to for a delay here since the card doesn't
2854 		 * respond to PCI reads during a reset. On some architectures
2855 		 * this will result in an MCA.
2856 		 */
2857 		udelay(20);
2858 		for (cnt = 30000; cnt; cnt--) {
2859 			if ((rd_reg_word(&reg->ctrl_status) &
2860 			    CSR_ISP_SOFT_RESET) == 0)
2861 				break;
2862 			udelay(100);
2863 		}
2864 	} else
2865 		udelay(10);
2866 
2867 	/* Reset RISC processor. */
2868 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2869 
2870 	wrt_reg_word(&reg->semaphore, 0);
2871 
2872 	/* Release RISC processor. */
2873 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2874 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
2875 
2876 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2877 		for (cnt = 0; cnt < 30000; cnt++) {
2878 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
2879 				break;
2880 
2881 			udelay(100);
2882 		}
2883 	} else
2884 		udelay(100);
2885 
2886 	/* Turn on master enable */
2887 	cmd |= PCI_COMMAND_MASTER;
2888 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2889 
2890 	/* Disable RISC pause on FPM parity error. */
2891 	if (!IS_QLA2100(ha)) {
2892 		wrt_reg_word(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
2893 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2894 	}
2895 
2896 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2897 
2898 	return QLA_SUCCESS;
2899 }
2900 
2901 /**
2902  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
2903  * @vha: HA context
2904  *
2905  * Returns 0 on success.
2906  */
2907 static int
2908 qla81xx_reset_mpi(scsi_qla_host_t *vha)
2909 {
2910 	uint16_t mb[4] = {0x1010, 0, 1, 0};
2911 
2912 	if (!IS_QLA81XX(vha->hw))
2913 		return QLA_SUCCESS;
2914 
2915 	return qla81xx_write_mpi_register(vha, mb);
2916 }
2917 
2918 static int
2919 qla_chk_risc_recovery(scsi_qla_host_t *vha)
2920 {
2921 	struct qla_hw_data *ha = vha->hw;
2922 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2923 	__le16 __iomem *mbptr = &reg->mailbox0;
2924 	int i;
2925 	u16 mb[32];
2926 	int rc = QLA_SUCCESS;
2927 
2928 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
2929 		return rc;
2930 
2931 	/* this check is only valid after RISC reset */
2932 	mb[0] = rd_reg_word(mbptr);
2933 	mbptr++;
2934 	if (mb[0] == 0xf) {
2935 		rc = QLA_FUNCTION_FAILED;
2936 
2937 		for (i = 1; i < 32; i++) {
2938 			mb[i] = rd_reg_word(mbptr);
2939 			mbptr++;
2940 		}
2941 
2942 		ql_log(ql_log_warn, vha, 0x1015,
2943 		       "RISC reset failed. mb[0-7] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
2944 		       mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6], mb[7]);
2945 		ql_log(ql_log_warn, vha, 0x1015,
2946 		       "RISC reset failed. mb[8-15] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
2947 		       mb[8], mb[9], mb[10], mb[11], mb[12], mb[13], mb[14],
2948 		       mb[15]);
2949 		ql_log(ql_log_warn, vha, 0x1015,
2950 		       "RISC reset failed. mb[16-23] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
2951 		       mb[16], mb[17], mb[18], mb[19], mb[20], mb[21], mb[22],
2952 		       mb[23]);
2953 		ql_log(ql_log_warn, vha, 0x1015,
2954 		       "RISC reset failed. mb[24-31] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
2955 		       mb[24], mb[25], mb[26], mb[27], mb[28], mb[29], mb[30],
2956 		       mb[31]);
2957 	}
2958 	return rc;
2959 }
2960 
2961 /**
2962  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
2963  * @vha: HA context
2964  *
2965  * Returns 0 on success.
2966  */
2967 static inline int
2968 qla24xx_reset_risc(scsi_qla_host_t *vha)
2969 {
2970 	unsigned long flags = 0;
2971 	struct qla_hw_data *ha = vha->hw;
2972 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2973 	uint32_t cnt;
2974 	uint16_t wd;
2975 	static int abts_cnt; /* ISP abort retry counts */
2976 	int rval = QLA_SUCCESS;
2977 	int print = 1;
2978 
2979 	spin_lock_irqsave(&ha->hardware_lock, flags);
2980 
2981 	/* Reset RISC. */
2982 	wrt_reg_dword(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
2983 	for (cnt = 0; cnt < 30000; cnt++) {
2984 		if ((rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
2985 			break;
2986 
2987 		udelay(10);
2988 	}
2989 
2990 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE))
2991 		set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
2992 
2993 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
2994 	    "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
2995 	    rd_reg_dword(&reg->hccr),
2996 	    rd_reg_dword(&reg->ctrl_status),
2997 	    (rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE));
2998 
2999 	wrt_reg_dword(&reg->ctrl_status,
3000 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
3001 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
3002 
3003 	udelay(100);
3004 
3005 	/* Wait for firmware to complete NVRAM accesses. */
3006 	rd_reg_word(&reg->mailbox0);
3007 	for (cnt = 10000; rd_reg_word(&reg->mailbox0) != 0 &&
3008 	    rval == QLA_SUCCESS; cnt--) {
3009 		barrier();
3010 		if (cnt)
3011 			udelay(5);
3012 		else
3013 			rval = QLA_FUNCTION_TIMEOUT;
3014 	}
3015 
3016 	if (rval == QLA_SUCCESS)
3017 		set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
3018 
3019 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
3020 	    "HCCR: 0x%x, MailBox0 Status 0x%x\n",
3021 	    rd_reg_dword(&reg->hccr),
3022 	    rd_reg_word(&reg->mailbox0));
3023 
3024 	/* Wait for soft-reset to complete. */
3025 	rd_reg_dword(&reg->ctrl_status);
3026 	for (cnt = 0; cnt < 60; cnt++) {
3027 		barrier();
3028 		if ((rd_reg_dword(&reg->ctrl_status) &
3029 		    CSRX_ISP_SOFT_RESET) == 0)
3030 			break;
3031 
3032 		udelay(5);
3033 	}
3034 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_ISP_SOFT_RESET))
3035 		set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
3036 
3037 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
3038 	    "HCCR: 0x%x, Soft Reset status: 0x%x\n",
3039 	    rd_reg_dword(&reg->hccr),
3040 	    rd_reg_dword(&reg->ctrl_status));
3041 
3042 	/* If required, do an MPI FW reset now */
3043 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
3044 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
3045 			if (++abts_cnt < 5) {
3046 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3047 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
3048 			} else {
3049 				/*
3050 				 * We exhausted the ISP abort retries. We have to
3051 				 * set the board offline.
3052 				 */
3053 				abts_cnt = 0;
3054 				vha->flags.online = 0;
3055 			}
3056 		}
3057 	}
3058 
3059 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
3060 	rd_reg_dword(&reg->hccr);
3061 
3062 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3063 	rd_reg_dword(&reg->hccr);
3064 
3065 	wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_RESET);
3066 	mdelay(10);
3067 	rd_reg_dword(&reg->hccr);
3068 
3069 	wd = rd_reg_word(&reg->mailbox0);
3070 	for (cnt = 300; wd != 0 && rval == QLA_SUCCESS; cnt--) {
3071 		barrier();
3072 		if (cnt) {
3073 			mdelay(1);
3074 			if (print && qla_chk_risc_recovery(vha))
3075 				print = 0;
3076 
3077 			wd = rd_reg_word(&reg->mailbox0);
3078 		} else {
3079 			rval = QLA_FUNCTION_TIMEOUT;
3080 
3081 			ql_log(ql_log_warn, vha, 0x015e,
3082 			       "RISC reset timeout\n");
3083 		}
3084 	}
3085 
3086 	if (rval == QLA_SUCCESS)
3087 		set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
3088 
3089 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
3090 	    "Host Risc 0x%x, mailbox0 0x%x\n",
3091 	    rd_reg_dword(&reg->hccr),
3092 	     rd_reg_word(&reg->mailbox0));
3093 
3094 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3095 
3096 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
3097 	    "Driver in %s mode\n",
3098 	    IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
3099 
3100 	if (IS_NOPOLLING_TYPE(ha))
3101 		ha->isp_ops->enable_intrs(ha);
3102 
3103 	return rval;
3104 }
3105 
3106 static void
3107 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
3108 {
3109 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
3110 
3111 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
3112 	*data = rd_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET);
3113 }
3114 
3115 static void
3116 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
3117 {
3118 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
3119 
3120 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
3121 	wrt_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET, data);
3122 }
3123 
3124 static void
3125 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
3126 {
3127 	uint32_t wd32 = 0;
3128 	uint delta_msec = 100;
3129 	uint elapsed_msec = 0;
3130 	uint timeout_msec;
3131 	ulong n;
3132 
3133 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
3134 	    vha->hw->pdev->subsystem_device != 0x0240)
3135 		return;
3136 
3137 	wrt_reg_dword(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
3138 	udelay(100);
3139 
3140 attempt:
3141 	timeout_msec = TIMEOUT_SEMAPHORE;
3142 	n = timeout_msec / delta_msec;
3143 	while (n--) {
3144 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
3145 		qla25xx_read_risc_sema_reg(vha, &wd32);
3146 		if (wd32 & RISC_SEMAPHORE)
3147 			break;
3148 		msleep(delta_msec);
3149 		elapsed_msec += delta_msec;
3150 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
3151 			goto force;
3152 	}
3153 
3154 	if (!(wd32 & RISC_SEMAPHORE))
3155 		goto force;
3156 
3157 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
3158 		goto acquired;
3159 
3160 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
3161 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
3162 	n = timeout_msec / delta_msec;
3163 	while (n--) {
3164 		qla25xx_read_risc_sema_reg(vha, &wd32);
3165 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
3166 			break;
3167 		msleep(delta_msec);
3168 		elapsed_msec += delta_msec;
3169 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
3170 			goto force;
3171 	}
3172 
3173 	if (wd32 & RISC_SEMAPHORE_FORCE)
3174 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
3175 
3176 	goto attempt;
3177 
3178 force:
3179 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
3180 
3181 acquired:
3182 	return;
3183 }
3184 
3185 /**
3186  * qla24xx_reset_chip() - Reset ISP24xx chip.
3187  * @vha: HA context
3188  *
3189  * Returns 0 on success.
3190  */
3191 int
3192 qla24xx_reset_chip(scsi_qla_host_t *vha)
3193 {
3194 	struct qla_hw_data *ha = vha->hw;
3195 	int rval = QLA_FUNCTION_FAILED;
3196 
3197 	if (pci_channel_offline(ha->pdev) &&
3198 	    ha->flags.pci_channel_io_perm_failure) {
3199 		return rval;
3200 	}
3201 
3202 	ha->isp_ops->disable_intrs(ha);
3203 
3204 	qla25xx_manipulate_risc_semaphore(vha);
3205 
3206 	/* Perform RISC reset. */
3207 	rval = qla24xx_reset_risc(vha);
3208 
3209 	return rval;
3210 }
3211 
3212 /**
3213  * qla2x00_chip_diag() - Test chip for proper operation.
3214  * @vha: HA context
3215  *
3216  * Returns 0 on success.
3217  */
3218 int
3219 qla2x00_chip_diag(scsi_qla_host_t *vha)
3220 {
3221 	int		rval;
3222 	struct qla_hw_data *ha = vha->hw;
3223 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3224 	unsigned long	flags = 0;
3225 	uint16_t	data;
3226 	uint32_t	cnt;
3227 	uint16_t	mb[5];
3228 	struct req_que *req = ha->req_q_map[0];
3229 
3230 	/* Assume a failed state */
3231 	rval = QLA_FUNCTION_FAILED;
3232 
3233 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
3234 	       &reg->flash_address);
3235 
3236 	spin_lock_irqsave(&ha->hardware_lock, flags);
3237 
3238 	/* Reset ISP chip. */
3239 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
3240 
3241 	/*
3242 	 * We need to have a delay here since the card will not respond while
3243 	 * in reset causing an MCA on some architectures.
3244 	 */
3245 	udelay(20);
3246 	data = qla2x00_debounce_register(&reg->ctrl_status);
3247 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
3248 		udelay(5);
3249 		data = rd_reg_word(&reg->ctrl_status);
3250 		barrier();
3251 	}
3252 
3253 	if (!cnt)
3254 		goto chip_diag_failed;
3255 
3256 	ql_dbg(ql_dbg_init, vha, 0x007c,
3257 	    "Reset register cleared by chip reset.\n");
3258 
3259 	/* Reset RISC processor. */
3260 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
3261 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
3262 
3263 	/* Workaround for QLA2312 PCI parity error */
3264 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
3265 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
3266 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
3267 			udelay(5);
3268 			data = RD_MAILBOX_REG(ha, reg, 0);
3269 			barrier();
3270 		}
3271 	} else
3272 		udelay(10);
3273 
3274 	if (!cnt)
3275 		goto chip_diag_failed;
3276 
3277 	/* Check product ID of chip */
3278 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
3279 
3280 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
3281 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
3282 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
3283 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
3284 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
3285 	    mb[3] != PROD_ID_3) {
3286 		ql_log(ql_log_warn, vha, 0x0062,
3287 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
3288 		    mb[1], mb[2], mb[3]);
3289 
3290 		goto chip_diag_failed;
3291 	}
3292 	ha->product_id[0] = mb[1];
3293 	ha->product_id[1] = mb[2];
3294 	ha->product_id[2] = mb[3];
3295 	ha->product_id[3] = mb[4];
3296 
3297 	/* Adjust fw RISC transfer size */
3298 	if (req->length > 1024)
3299 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
3300 	else
3301 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
3302 		    req->length;
3303 
3304 	if (IS_QLA2200(ha) &&
3305 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
3306 		/* Limit firmware transfer size with a 2200A */
3307 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
3308 
3309 		ha->device_type |= DT_ISP2200A;
3310 		ha->fw_transfer_size = 128;
3311 	}
3312 
3313 	/* Wrap Incoming Mailboxes Test. */
3314 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3315 
3316 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
3317 	rval = qla2x00_mbx_reg_test(vha);
3318 	if (rval)
3319 		ql_log(ql_log_warn, vha, 0x0080,
3320 		    "Failed mailbox send register test.\n");
3321 	else
3322 		/* Flag a successful rval */
3323 		rval = QLA_SUCCESS;
3324 	spin_lock_irqsave(&ha->hardware_lock, flags);
3325 
3326 chip_diag_failed:
3327 	if (rval)
3328 		ql_log(ql_log_info, vha, 0x0081,
3329 		    "Chip diagnostics **** FAILED ****.\n");
3330 
3331 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3332 
3333 	return (rval);
3334 }
3335 
3336 /**
3337  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
3338  * @vha: HA context
3339  *
3340  * Returns 0 on success.
3341  */
3342 int
3343 qla24xx_chip_diag(scsi_qla_host_t *vha)
3344 {
3345 	int rval;
3346 	struct qla_hw_data *ha = vha->hw;
3347 	struct req_que *req = ha->req_q_map[0];
3348 
3349 	if (IS_P3P_TYPE(ha))
3350 		return QLA_SUCCESS;
3351 
3352 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
3353 
3354 	rval = qla2x00_mbx_reg_test(vha);
3355 	if (rval) {
3356 		ql_log(ql_log_warn, vha, 0x0082,
3357 		    "Failed mailbox send register test.\n");
3358 	} else {
3359 		/* Flag a successful rval */
3360 		rval = QLA_SUCCESS;
3361 	}
3362 
3363 	return rval;
3364 }
3365 
3366 static void
3367 qla2x00_init_fce_trace(scsi_qla_host_t *vha)
3368 {
3369 	int rval;
3370 	dma_addr_t tc_dma;
3371 	void *tc;
3372 	struct qla_hw_data *ha = vha->hw;
3373 
3374 	if (!IS_FWI2_CAPABLE(ha))
3375 		return;
3376 
3377 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3378 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3379 		return;
3380 
3381 	if (ha->fce) {
3382 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3383 		       "%s: FCE Mem is already allocated.\n",
3384 		       __func__);
3385 		return;
3386 	}
3387 
3388 	/* Allocate memory for Fibre Channel Event Buffer. */
3389 	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
3390 				GFP_KERNEL);
3391 	if (!tc) {
3392 		ql_log(ql_log_warn, vha, 0x00be,
3393 		       "Unable to allocate (%d KB) for FCE.\n",
3394 		       FCE_SIZE / 1024);
3395 		return;
3396 	}
3397 
3398 	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
3399 					ha->fce_mb, &ha->fce_bufs);
3400 	if (rval) {
3401 		ql_log(ql_log_warn, vha, 0x00bf,
3402 		       "Unable to initialize FCE (%d).\n", rval);
3403 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
3404 		return;
3405 	}
3406 
3407 	ql_dbg(ql_dbg_init, vha, 0x00c0,
3408 	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
3409 
3410 	ha->flags.fce_enabled = 1;
3411 	ha->fce_dma = tc_dma;
3412 	ha->fce = tc;
3413 }
3414 
3415 static void
3416 qla2x00_init_eft_trace(scsi_qla_host_t *vha)
3417 {
3418 	int rval;
3419 	dma_addr_t tc_dma;
3420 	void *tc;
3421 	struct qla_hw_data *ha = vha->hw;
3422 
3423 	if (!IS_FWI2_CAPABLE(ha))
3424 		return;
3425 
3426 	if (ha->eft) {
3427 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3428 		    "%s: EFT Mem is already allocated.\n",
3429 		    __func__);
3430 		return;
3431 	}
3432 
3433 	/* Allocate memory for Extended Trace Buffer. */
3434 	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
3435 				GFP_KERNEL);
3436 	if (!tc) {
3437 		ql_log(ql_log_warn, vha, 0x00c1,
3438 		       "Unable to allocate (%d KB) for EFT.\n",
3439 		       EFT_SIZE / 1024);
3440 		return;
3441 	}
3442 
3443 	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
3444 	if (rval) {
3445 		ql_log(ql_log_warn, vha, 0x00c2,
3446 		       "Unable to initialize EFT (%d).\n", rval);
3447 		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
3448 		return;
3449 	}
3450 
3451 	ql_dbg(ql_dbg_init, vha, 0x00c3,
3452 	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
3453 
3454 	ha->eft_dma = tc_dma;
3455 	ha->eft = tc;
3456 }
3457 
3458 static void
3459 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
3460 {
3461 	qla2x00_init_fce_trace(vha);
3462 	qla2x00_init_eft_trace(vha);
3463 }
3464 
3465 void
3466 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
3467 {
3468 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
3469 	    eft_size, fce_size, mq_size;
3470 	struct qla_hw_data *ha = vha->hw;
3471 	struct req_que *req = ha->req_q_map[0];
3472 	struct rsp_que *rsp = ha->rsp_q_map[0];
3473 	struct qla2xxx_fw_dump *fw_dump;
3474 
3475 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
3476 	req_q_size = rsp_q_size = 0;
3477 
3478 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3479 		fixed_size = sizeof(struct qla2100_fw_dump);
3480 	} else if (IS_QLA23XX(ha)) {
3481 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
3482 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
3483 		    sizeof(uint16_t);
3484 	} else if (IS_FWI2_CAPABLE(ha)) {
3485 		if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))
3486 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
3487 		else if (IS_QLA81XX(ha))
3488 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
3489 		else if (IS_QLA25XX(ha))
3490 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
3491 		else
3492 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
3493 
3494 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
3495 		    sizeof(uint32_t);
3496 		if (ha->mqenable) {
3497 			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha) &&
3498 			    !IS_QLA28XX(ha))
3499 				mq_size = sizeof(struct qla2xxx_mq_chain);
3500 			/*
3501 			 * Allocate maximum buffer size for all queues - Q0.
3502 			 * Resizing must be done at end-of-dump processing.
3503 			 */
3504 			mq_size += (ha->max_req_queues - 1) *
3505 			    (req->length * sizeof(request_t));
3506 			mq_size += (ha->max_rsp_queues - 1) *
3507 			    (rsp->length * sizeof(response_t));
3508 		}
3509 		if (ha->tgt.atio_ring)
3510 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
3511 
3512 		qla2x00_init_fce_trace(vha);
3513 		if (ha->fce)
3514 			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
3515 		qla2x00_init_eft_trace(vha);
3516 		if (ha->eft)
3517 			eft_size = EFT_SIZE;
3518 	}
3519 
3520 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3521 		struct fwdt *fwdt = ha->fwdt;
3522 		uint j;
3523 
3524 		for (j = 0; j < 2; j++, fwdt++) {
3525 			if (!fwdt->template) {
3526 				ql_dbg(ql_dbg_init, vha, 0x00ba,
3527 				    "-> fwdt%u no template\n", j);
3528 				continue;
3529 			}
3530 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3531 			    "-> fwdt%u calculating fwdump size...\n", j);
3532 			fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
3533 			    vha, fwdt->template);
3534 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3535 			    "-> fwdt%u calculated fwdump size = %#lx bytes\n",
3536 			    j, fwdt->dump_size);
3537 			dump_size += fwdt->dump_size;
3538 		}
3539 		/* Add space for spare MPI fw dump. */
3540 		dump_size += ha->fwdt[1].dump_size;
3541 	} else {
3542 		req_q_size = req->length * sizeof(request_t);
3543 		rsp_q_size = rsp->length * sizeof(response_t);
3544 		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3545 		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
3546 			+ eft_size;
3547 		ha->chain_offset = dump_size;
3548 		dump_size += mq_size + fce_size;
3549 		if (ha->exchoffld_buf)
3550 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3551 				ha->exchoffld_size;
3552 		if (ha->exlogin_buf)
3553 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3554 				ha->exlogin_size;
3555 	}
3556 
3557 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
3558 
3559 		ql_dbg(ql_dbg_init, vha, 0x00c5,
3560 		    "%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
3561 		    __func__, dump_size, ha->fw_dump_len,
3562 		    ha->fw_dump_alloc_len);
3563 
3564 		fw_dump = vmalloc(dump_size);
3565 		if (!fw_dump) {
3566 			ql_log(ql_log_warn, vha, 0x00c4,
3567 			    "Unable to allocate (%d KB) for firmware dump.\n",
3568 			    dump_size / 1024);
3569 		} else {
3570 			mutex_lock(&ha->optrom_mutex);
3571 			if (ha->fw_dumped) {
3572 				memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
3573 				vfree(ha->fw_dump);
3574 				ha->fw_dump = fw_dump;
3575 				ha->fw_dump_alloc_len =  dump_size;
3576 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3577 				    "Re-Allocated (%d KB) and save firmware dump.\n",
3578 				    dump_size / 1024);
3579 			} else {
3580 				vfree(ha->fw_dump);
3581 				ha->fw_dump = fw_dump;
3582 
3583 				ha->fw_dump_len = ha->fw_dump_alloc_len =
3584 				    dump_size;
3585 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3586 				    "Allocated (%d KB) for firmware dump.\n",
3587 				    dump_size / 1024);
3588 
3589 				if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3590 					ha->mpi_fw_dump = (char *)fw_dump +
3591 						ha->fwdt[1].dump_size;
3592 					mutex_unlock(&ha->optrom_mutex);
3593 					return;
3594 				}
3595 
3596 				ha->fw_dump->signature[0] = 'Q';
3597 				ha->fw_dump->signature[1] = 'L';
3598 				ha->fw_dump->signature[2] = 'G';
3599 				ha->fw_dump->signature[3] = 'C';
3600 				ha->fw_dump->version = htonl(1);
3601 
3602 				ha->fw_dump->fixed_size = htonl(fixed_size);
3603 				ha->fw_dump->mem_size = htonl(mem_size);
3604 				ha->fw_dump->req_q_size = htonl(req_q_size);
3605 				ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3606 
3607 				ha->fw_dump->eft_size = htonl(eft_size);
3608 				ha->fw_dump->eft_addr_l =
3609 				    htonl(LSD(ha->eft_dma));
3610 				ha->fw_dump->eft_addr_h =
3611 				    htonl(MSD(ha->eft_dma));
3612 
3613 				ha->fw_dump->header_size =
3614 					htonl(offsetof
3615 					    (struct qla2xxx_fw_dump, isp));
3616 			}
3617 			mutex_unlock(&ha->optrom_mutex);
3618 		}
3619 	}
3620 }
3621 
3622 static int
3623 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3624 {
3625 #define MPS_MASK	0xe0
3626 	int rval;
3627 	uint16_t dc;
3628 	uint32_t dw;
3629 
3630 	if (!IS_QLA81XX(vha->hw))
3631 		return QLA_SUCCESS;
3632 
3633 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3634 	if (rval != QLA_SUCCESS) {
3635 		ql_log(ql_log_warn, vha, 0x0105,
3636 		    "Unable to acquire semaphore.\n");
3637 		goto done;
3638 	}
3639 
3640 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3641 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3642 	if (rval != QLA_SUCCESS) {
3643 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3644 		goto done_release;
3645 	}
3646 
3647 	dc &= MPS_MASK;
3648 	if (dc == (dw & MPS_MASK))
3649 		goto done_release;
3650 
3651 	dw &= ~MPS_MASK;
3652 	dw |= dc;
3653 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3654 	if (rval != QLA_SUCCESS) {
3655 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3656 	}
3657 
3658 done_release:
3659 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3660 	if (rval != QLA_SUCCESS) {
3661 		ql_log(ql_log_warn, vha, 0x006d,
3662 		    "Unable to release semaphore.\n");
3663 	}
3664 
3665 done:
3666 	return rval;
3667 }
3668 
3669 int
3670 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3671 {
3672 	/* Don't try to reallocate the array */
3673 	if (req->outstanding_cmds)
3674 		return QLA_SUCCESS;
3675 
3676 	if (!IS_FWI2_CAPABLE(ha))
3677 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3678 	else {
3679 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3680 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3681 		else
3682 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3683 	}
3684 
3685 	req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3686 					sizeof(srb_t *),
3687 					GFP_KERNEL);
3688 
3689 	if (!req->outstanding_cmds) {
3690 		/*
3691 		 * Try to allocate a minimal size just so we can get through
3692 		 * initialization.
3693 		 */
3694 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3695 		req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3696 						sizeof(srb_t *),
3697 						GFP_KERNEL);
3698 
3699 		if (!req->outstanding_cmds) {
3700 			ql_log(ql_log_fatal, NULL, 0x0126,
3701 			    "Failed to allocate memory for "
3702 			    "outstanding_cmds for req_que %p.\n", req);
3703 			req->num_outstanding_cmds = 0;
3704 			return QLA_FUNCTION_FAILED;
3705 		}
3706 	}
3707 
3708 	return QLA_SUCCESS;
3709 }
3710 
3711 #define PRINT_FIELD(_field, _flag, _str) {		\
3712 	if (a0->_field & _flag) {\
3713 		if (p) {\
3714 			strcat(ptr, "|");\
3715 			ptr++;\
3716 			leftover--;\
3717 		} \
3718 		len = snprintf(ptr, leftover, "%s", _str);	\
3719 		p = 1;\
3720 		leftover -= len;\
3721 		ptr += len; \
3722 	} \
3723 }
3724 
3725 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3726 {
3727 #define STR_LEN 64
3728 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3729 	u8 str[STR_LEN], *ptr, p;
3730 	int leftover, len;
3731 
3732 	memset(str, 0, STR_LEN);
3733 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3734 	ql_dbg(ql_dbg_init, vha, 0x015a,
3735 	    "SFP MFG Name: %s\n", str);
3736 
3737 	memset(str, 0, STR_LEN);
3738 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3739 	ql_dbg(ql_dbg_init, vha, 0x015c,
3740 	    "SFP Part Name: %s\n", str);
3741 
3742 	/* media */
3743 	memset(str, 0, STR_LEN);
3744 	ptr = str;
3745 	leftover = STR_LEN;
3746 	p = len = 0;
3747 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3748 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3749 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3750 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3751 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3752 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3753 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3754 	ql_dbg(ql_dbg_init, vha, 0x0160,
3755 	    "SFP Media: %s\n", str);
3756 
3757 	/* link length */
3758 	memset(str, 0, STR_LEN);
3759 	ptr = str;
3760 	leftover = STR_LEN;
3761 	p = len = 0;
3762 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3763 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3764 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3765 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3766 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3767 	ql_dbg(ql_dbg_init, vha, 0x0196,
3768 	    "SFP Link Length: %s\n", str);
3769 
3770 	memset(str, 0, STR_LEN);
3771 	ptr = str;
3772 	leftover = STR_LEN;
3773 	p = len = 0;
3774 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3775 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3776 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3777 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3778 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3779 	ql_dbg(ql_dbg_init, vha, 0x016e,
3780 	    "SFP FC Link Tech: %s\n", str);
3781 
3782 	if (a0->length_km)
3783 		ql_dbg(ql_dbg_init, vha, 0x016f,
3784 		    "SFP Distant: %d km\n", a0->length_km);
3785 	if (a0->length_100m)
3786 		ql_dbg(ql_dbg_init, vha, 0x0170,
3787 		    "SFP Distant: %d m\n", a0->length_100m*100);
3788 	if (a0->length_50um_10m)
3789 		ql_dbg(ql_dbg_init, vha, 0x0189,
3790 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3791 	if (a0->length_62um_10m)
3792 		ql_dbg(ql_dbg_init, vha, 0x018a,
3793 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3794 	if (a0->length_om4_10m)
3795 		ql_dbg(ql_dbg_init, vha, 0x0194,
3796 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3797 	if (a0->length_om3_10m)
3798 		ql_dbg(ql_dbg_init, vha, 0x0195,
3799 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3800 }
3801 
3802 
3803 /**
3804  * qla24xx_detect_sfp()
3805  *
3806  * @vha: adapter state pointer.
3807  *
3808  * @return
3809  *	0 -- Configure firmware to use short-range settings -- normal
3810  *	     buffer-to-buffer credits.
3811  *
3812  *	1 -- Configure firmware to use long-range settings -- extra
3813  *	     buffer-to-buffer credits should be allocated with
3814  *	     ha->lr_distance containing distance settings from NVRAM or SFP
3815  *	     (if supported).
3816  */
3817 int
3818 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3819 {
3820 	int rc, used_nvram;
3821 	struct sff_8247_a0 *a;
3822 	struct qla_hw_data *ha = vha->hw;
3823 	struct nvram_81xx *nv = ha->nvram;
3824 #define LR_DISTANCE_UNKNOWN	2
3825 	static const char * const types[] = { "Short", "Long" };
3826 	static const char * const lengths[] = { "(10km)", "(5km)", "" };
3827 	u8 ll = 0;
3828 
3829 	/* Seed with NVRAM settings. */
3830 	used_nvram = 0;
3831 	ha->flags.lr_detected = 0;
3832 	if (IS_BPM_RANGE_CAPABLE(ha) &&
3833 	    (nv->enhanced_features & NEF_LR_DIST_ENABLE)) {
3834 		used_nvram = 1;
3835 		ha->flags.lr_detected = 1;
3836 		ha->lr_distance =
3837 		    (nv->enhanced_features >> LR_DIST_NV_POS)
3838 		     & LR_DIST_NV_MASK;
3839 	}
3840 
3841 	if (!IS_BPM_ENABLED(vha))
3842 		goto out;
3843 	/* Determine SR/LR capabilities of SFP/Transceiver. */
3844 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3845 	if (rc)
3846 		goto out;
3847 
3848 	used_nvram = 0;
3849 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3850 	qla2xxx_print_sfp_info(vha);
3851 
3852 	ha->flags.lr_detected = 0;
3853 	ll = a->fc_ll_cc7;
3854 	if (ll & FC_LL_VL || ll & FC_LL_L) {
3855 		/* Long range, track length. */
3856 		ha->flags.lr_detected = 1;
3857 
3858 		if (a->length_km > 5 || a->length_100m > 50)
3859 			ha->lr_distance = LR_DISTANCE_10K;
3860 		else
3861 			ha->lr_distance = LR_DISTANCE_5K;
3862 	}
3863 
3864 out:
3865 	ql_dbg(ql_dbg_async, vha, 0x507b,
3866 	    "SFP detect: %s-Range SFP %s (nvr=%x ll=%x lr=%x lrd=%x).\n",
3867 	    types[ha->flags.lr_detected],
3868 	    ha->flags.lr_detected ? lengths[ha->lr_distance] :
3869 	       lengths[LR_DISTANCE_UNKNOWN],
3870 	    used_nvram, ll, ha->flags.lr_detected, ha->lr_distance);
3871 	return ha->flags.lr_detected;
3872 }
3873 
3874 void qla_init_iocb_limit(scsi_qla_host_t *vha)
3875 {
3876 	u16 i, num_qps;
3877 	u32 limit;
3878 	struct qla_hw_data *ha = vha->hw;
3879 
3880 	num_qps = ha->num_qpairs + 1;
3881 	limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100;
3882 
3883 	ha->base_qpair->fwres.iocbs_total = ha->orig_fw_iocb_count;
3884 	ha->base_qpair->fwres.iocbs_limit = limit;
3885 	ha->base_qpair->fwres.iocbs_qp_limit = limit / num_qps;
3886 	ha->base_qpair->fwres.iocbs_used = 0;
3887 	for (i = 0; i < ha->max_qpairs; i++) {
3888 		if (ha->queue_pair_map[i])  {
3889 			ha->queue_pair_map[i]->fwres.iocbs_total =
3890 				ha->orig_fw_iocb_count;
3891 			ha->queue_pair_map[i]->fwres.iocbs_limit = limit;
3892 			ha->queue_pair_map[i]->fwres.iocbs_qp_limit =
3893 				limit / num_qps;
3894 			ha->queue_pair_map[i]->fwres.iocbs_used = 0;
3895 		}
3896 	}
3897 }
3898 
3899 /**
3900  * qla2x00_setup_chip() - Load and start RISC firmware.
3901  * @vha: HA context
3902  *
3903  * Returns 0 on success.
3904  */
3905 static int
3906 qla2x00_setup_chip(scsi_qla_host_t *vha)
3907 {
3908 	int rval;
3909 	uint32_t srisc_address = 0;
3910 	struct qla_hw_data *ha = vha->hw;
3911 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3912 	unsigned long flags;
3913 	uint16_t fw_major_version;
3914 	int done_once = 0;
3915 
3916 	if (IS_P3P_TYPE(ha)) {
3917 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3918 		if (rval == QLA_SUCCESS) {
3919 			qla2x00_stop_firmware(vha);
3920 			goto enable_82xx_npiv;
3921 		} else
3922 			goto failed;
3923 	}
3924 
3925 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3926 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3927 		spin_lock_irqsave(&ha->hardware_lock, flags);
3928 		wrt_reg_word(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
3929 		rd_reg_word(&reg->hccr);
3930 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
3931 	}
3932 
3933 	qla81xx_mpi_sync(vha);
3934 
3935 execute_fw_with_lr:
3936 	/* Load firmware sequences */
3937 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
3938 	if (rval == QLA_SUCCESS) {
3939 		ql_dbg(ql_dbg_init, vha, 0x00c9,
3940 		    "Verifying Checksum of loaded RISC code.\n");
3941 
3942 		rval = qla2x00_verify_checksum(vha, srisc_address);
3943 		if (rval == QLA_SUCCESS) {
3944 			/* Start firmware execution. */
3945 			ql_dbg(ql_dbg_init, vha, 0x00ca,
3946 			    "Starting firmware.\n");
3947 
3948 			if (ql2xexlogins)
3949 				ha->flags.exlogins_enabled = 1;
3950 
3951 			if (qla_is_exch_offld_enabled(vha))
3952 				ha->flags.exchoffld_enabled = 1;
3953 
3954 			rval = qla2x00_execute_fw(vha, srisc_address);
3955 			/* Retrieve firmware information. */
3956 			if (rval == QLA_SUCCESS) {
3957 				/* Enable BPM support? */
3958 				if (!done_once++ && qla24xx_detect_sfp(vha)) {
3959 					ql_dbg(ql_dbg_init, vha, 0x00ca,
3960 					    "Re-starting firmware -- BPM.\n");
3961 					/* Best-effort - re-init. */
3962 					ha->isp_ops->reset_chip(vha);
3963 					ha->isp_ops->chip_diag(vha);
3964 					goto execute_fw_with_lr;
3965 				}
3966 
3967 				if (IS_ZIO_THRESHOLD_CAPABLE(ha))
3968 					qla27xx_set_zio_threshold(vha,
3969 					    ha->last_zio_threshold);
3970 
3971 				rval = qla2x00_set_exlogins_buffer(vha);
3972 				if (rval != QLA_SUCCESS)
3973 					goto failed;
3974 
3975 				rval = qla2x00_set_exchoffld_buffer(vha);
3976 				if (rval != QLA_SUCCESS)
3977 					goto failed;
3978 
3979 enable_82xx_npiv:
3980 				fw_major_version = ha->fw_major_version;
3981 				if (IS_P3P_TYPE(ha))
3982 					qla82xx_check_md_needed(vha);
3983 				else
3984 					rval = qla2x00_get_fw_version(vha);
3985 				if (rval != QLA_SUCCESS)
3986 					goto failed;
3987 				ha->flags.npiv_supported = 0;
3988 				if (IS_QLA2XXX_MIDTYPE(ha) &&
3989 					 (ha->fw_attributes & BIT_2)) {
3990 					ha->flags.npiv_supported = 1;
3991 					if ((!ha->max_npiv_vports) ||
3992 					    ((ha->max_npiv_vports + 1) %
3993 					    MIN_MULTI_ID_FABRIC))
3994 						ha->max_npiv_vports =
3995 						    MIN_MULTI_ID_FABRIC - 1;
3996 				}
3997 				qla2x00_get_resource_cnts(vha);
3998 				qla_init_iocb_limit(vha);
3999 
4000 				/*
4001 				 * Allocate the array of outstanding commands
4002 				 * now that we know the firmware resources.
4003 				 */
4004 				rval = qla2x00_alloc_outstanding_cmds(ha,
4005 				    vha->req);
4006 				if (rval != QLA_SUCCESS)
4007 					goto failed;
4008 
4009 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
4010 					qla2x00_alloc_offload_mem(vha);
4011 
4012 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
4013 					qla2x00_alloc_fw_dump(vha);
4014 
4015 			} else {
4016 				goto failed;
4017 			}
4018 		} else {
4019 			ql_log(ql_log_fatal, vha, 0x00cd,
4020 			    "ISP Firmware failed checksum.\n");
4021 			goto failed;
4022 		}
4023 
4024 		/* Enable PUREX PASSTHRU */
4025 		if (ql2xrdpenable || ha->flags.scm_supported_f ||
4026 		    ha->flags.edif_enabled)
4027 			qla25xx_set_els_cmds_supported(vha);
4028 	} else
4029 		goto failed;
4030 
4031 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
4032 		/* Enable proper parity. */
4033 		spin_lock_irqsave(&ha->hardware_lock, flags);
4034 		if (IS_QLA2300(ha))
4035 			/* SRAM parity */
4036 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
4037 		else
4038 			/* SRAM, Instruction RAM and GP RAM parity */
4039 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
4040 		rd_reg_word(&reg->hccr);
4041 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
4042 	}
4043 
4044 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
4045 		ha->flags.fac_supported = 1;
4046 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
4047 		uint32_t size;
4048 
4049 		rval = qla81xx_fac_get_sector_size(vha, &size);
4050 		if (rval == QLA_SUCCESS) {
4051 			ha->flags.fac_supported = 1;
4052 			ha->fdt_block_size = size << 2;
4053 		} else {
4054 			ql_log(ql_log_warn, vha, 0x00ce,
4055 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
4056 			    ha->fw_major_version, ha->fw_minor_version,
4057 			    ha->fw_subminor_version);
4058 
4059 			if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4060 			    IS_QLA28XX(ha)) {
4061 				ha->flags.fac_supported = 0;
4062 				rval = QLA_SUCCESS;
4063 			}
4064 		}
4065 	}
4066 failed:
4067 	if (rval) {
4068 		ql_log(ql_log_fatal, vha, 0x00cf,
4069 		    "Setup chip ****FAILED****.\n");
4070 	}
4071 
4072 	return (rval);
4073 }
4074 
4075 /**
4076  * qla2x00_init_response_q_entries() - Initializes response queue entries.
4077  * @rsp: response queue
4078  *
4079  * Beginning of request ring has initialization control block already built
4080  * by nvram config routine.
4081  *
4082  * Returns 0 on success.
4083  */
4084 void
4085 qla2x00_init_response_q_entries(struct rsp_que *rsp)
4086 {
4087 	uint16_t cnt;
4088 	response_t *pkt;
4089 
4090 	rsp->ring_ptr = rsp->ring;
4091 	rsp->ring_index    = 0;
4092 	rsp->status_srb = NULL;
4093 	pkt = rsp->ring_ptr;
4094 	for (cnt = 0; cnt < rsp->length; cnt++) {
4095 		pkt->signature = RESPONSE_PROCESSED;
4096 		pkt++;
4097 	}
4098 }
4099 
4100 /**
4101  * qla2x00_update_fw_options() - Read and process firmware options.
4102  * @vha: HA context
4103  *
4104  * Returns 0 on success.
4105  */
4106 void
4107 qla2x00_update_fw_options(scsi_qla_host_t *vha)
4108 {
4109 	uint16_t swing, emphasis, tx_sens, rx_sens;
4110 	struct qla_hw_data *ha = vha->hw;
4111 
4112 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
4113 	qla2x00_get_fw_options(vha, ha->fw_options);
4114 
4115 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
4116 		return;
4117 
4118 	/* Serial Link options. */
4119 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
4120 	    "Serial link options.\n");
4121 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
4122 	    ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
4123 
4124 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
4125 	if (ha->fw_seriallink_options[3] & BIT_2) {
4126 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
4127 
4128 		/*  1G settings */
4129 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
4130 		emphasis = (ha->fw_seriallink_options[2] &
4131 		    (BIT_4 | BIT_3)) >> 3;
4132 		tx_sens = ha->fw_seriallink_options[0] &
4133 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4134 		rx_sens = (ha->fw_seriallink_options[0] &
4135 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
4136 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
4137 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
4138 			if (rx_sens == 0x0)
4139 				rx_sens = 0x3;
4140 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
4141 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
4142 			ha->fw_options[10] |= BIT_5 |
4143 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
4144 			    (tx_sens & (BIT_1 | BIT_0));
4145 
4146 		/*  2G settings */
4147 		swing = (ha->fw_seriallink_options[2] &
4148 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
4149 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
4150 		tx_sens = ha->fw_seriallink_options[1] &
4151 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4152 		rx_sens = (ha->fw_seriallink_options[1] &
4153 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
4154 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
4155 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
4156 			if (rx_sens == 0x0)
4157 				rx_sens = 0x3;
4158 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
4159 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
4160 			ha->fw_options[11] |= BIT_5 |
4161 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
4162 			    (tx_sens & (BIT_1 | BIT_0));
4163 	}
4164 
4165 	/* FCP2 options. */
4166 	/*  Return command IOCBs without waiting for an ABTS to complete. */
4167 	ha->fw_options[3] |= BIT_13;
4168 
4169 	/* LED scheme. */
4170 	if (ha->flags.enable_led_scheme)
4171 		ha->fw_options[2] |= BIT_12;
4172 
4173 	/* Detect ISP6312. */
4174 	if (IS_QLA6312(ha))
4175 		ha->fw_options[2] |= BIT_13;
4176 
4177 	/* Set Retry FLOGI in case of P2P connection */
4178 	if (ha->operating_mode == P2P) {
4179 		ha->fw_options[2] |= BIT_3;
4180 		ql_dbg(ql_dbg_disc, vha, 0x2100,
4181 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
4182 			__func__, ha->fw_options[2]);
4183 	}
4184 
4185 	/* Update firmware options. */
4186 	qla2x00_set_fw_options(vha, ha->fw_options);
4187 }
4188 
4189 void
4190 qla24xx_update_fw_options(scsi_qla_host_t *vha)
4191 {
4192 	int rval;
4193 	struct qla_hw_data *ha = vha->hw;
4194 
4195 	if (IS_P3P_TYPE(ha))
4196 		return;
4197 
4198 	/*  Hold status IOCBs until ABTS response received. */
4199 	if (ql2xfwholdabts)
4200 		ha->fw_options[3] |= BIT_12;
4201 
4202 	/* Set Retry FLOGI in case of P2P connection */
4203 	if (ha->operating_mode == P2P) {
4204 		ha->fw_options[2] |= BIT_3;
4205 		ql_dbg(ql_dbg_disc, vha, 0x2101,
4206 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
4207 			__func__, ha->fw_options[2]);
4208 	}
4209 
4210 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
4211 	if (ql2xmvasynctoatio && !ha->flags.edif_enabled &&
4212 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
4213 		if (qla_tgt_mode_enabled(vha) ||
4214 		    qla_dual_mode_enabled(vha))
4215 			ha->fw_options[2] |= BIT_11;
4216 		else
4217 			ha->fw_options[2] &= ~BIT_11;
4218 	}
4219 
4220 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4221 	    IS_QLA28XX(ha)) {
4222 		/*
4223 		 * Tell FW to track each exchange to prevent
4224 		 * driver from using stale exchange.
4225 		 */
4226 		if (qla_tgt_mode_enabled(vha) ||
4227 		    qla_dual_mode_enabled(vha))
4228 			ha->fw_options[2] |= BIT_4;
4229 		else
4230 			ha->fw_options[2] &= ~(BIT_4);
4231 
4232 		/* Reserve 1/2 of emergency exchanges for ELS.*/
4233 		if (qla2xuseresexchforels)
4234 			ha->fw_options[2] |= BIT_8;
4235 		else
4236 			ha->fw_options[2] &= ~BIT_8;
4237 
4238 		/*
4239 		 * N2N: set Secure=1 for PLOGI ACC and
4240 		 * fw shal not send PRLI after PLOGI Acc
4241 		 */
4242 		if (ha->flags.edif_enabled &&
4243 		    DBELL_ACTIVE(vha)) {
4244 			ha->fw_options[3] |= BIT_15;
4245 			ha->flags.n2n_fw_acc_sec = 1;
4246 		} else {
4247 			ha->fw_options[3] &= ~BIT_15;
4248 			ha->flags.n2n_fw_acc_sec = 0;
4249 		}
4250 	}
4251 
4252 	if (ql2xrdpenable || ha->flags.scm_supported_f ||
4253 	    ha->flags.edif_enabled)
4254 		ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
4255 
4256 	/* Enable Async 8130/8131 events -- transceiver insertion/removal */
4257 	if (IS_BPM_RANGE_CAPABLE(ha))
4258 		ha->fw_options[3] |= BIT_10;
4259 
4260 	ql_dbg(ql_dbg_init, vha, 0x00e8,
4261 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
4262 	    __func__, ha->fw_options[1], ha->fw_options[2],
4263 	    ha->fw_options[3], vha->host->active_mode);
4264 
4265 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
4266 		qla2x00_set_fw_options(vha, ha->fw_options);
4267 
4268 	/* Update Serial Link options. */
4269 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
4270 		return;
4271 
4272 	rval = qla2x00_set_serdes_params(vha,
4273 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
4274 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
4275 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
4276 	if (rval != QLA_SUCCESS) {
4277 		ql_log(ql_log_warn, vha, 0x0104,
4278 		    "Unable to update Serial Link options (%x).\n", rval);
4279 	}
4280 }
4281 
4282 void
4283 qla2x00_config_rings(struct scsi_qla_host *vha)
4284 {
4285 	struct qla_hw_data *ha = vha->hw;
4286 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4287 	struct req_que *req = ha->req_q_map[0];
4288 	struct rsp_que *rsp = ha->rsp_q_map[0];
4289 
4290 	/* Setup ring parameters in initialization control block. */
4291 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
4292 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
4293 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
4294 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
4295 	put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
4296 	put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
4297 
4298 	wrt_reg_word(ISP_REQ_Q_IN(ha, reg), 0);
4299 	wrt_reg_word(ISP_REQ_Q_OUT(ha, reg), 0);
4300 	wrt_reg_word(ISP_RSP_Q_IN(ha, reg), 0);
4301 	wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), 0);
4302 	rd_reg_word(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
4303 }
4304 
4305 void
4306 qla24xx_config_rings(struct scsi_qla_host *vha)
4307 {
4308 	struct qla_hw_data *ha = vha->hw;
4309 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
4310 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
4311 	struct qla_msix_entry *msix;
4312 	struct init_cb_24xx *icb;
4313 	uint16_t rid = 0;
4314 	struct req_que *req = ha->req_q_map[0];
4315 	struct rsp_que *rsp = ha->rsp_q_map[0];
4316 
4317 	/* Setup ring parameters in initialization control block. */
4318 	icb = (struct init_cb_24xx *)ha->init_cb;
4319 	icb->request_q_outpointer = cpu_to_le16(0);
4320 	icb->response_q_inpointer = cpu_to_le16(0);
4321 	icb->request_q_length = cpu_to_le16(req->length);
4322 	icb->response_q_length = cpu_to_le16(rsp->length);
4323 	put_unaligned_le64(req->dma, &icb->request_q_address);
4324 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
4325 
4326 	/* Setup ATIO queue dma pointers for target mode */
4327 	icb->atio_q_inpointer = cpu_to_le16(0);
4328 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
4329 	put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
4330 
4331 	if (IS_SHADOW_REG_CAPABLE(ha))
4332 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
4333 
4334 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4335 	    IS_QLA28XX(ha)) {
4336 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
4337 		icb->rid = cpu_to_le16(rid);
4338 		if (ha->flags.msix_enabled) {
4339 			msix = &ha->msix_entries[1];
4340 			ql_dbg(ql_dbg_init, vha, 0x0019,
4341 			    "Registering vector 0x%x for base que.\n",
4342 			    msix->entry);
4343 			icb->msix = cpu_to_le16(msix->entry);
4344 		}
4345 		/* Use alternate PCI bus number */
4346 		if (MSB(rid))
4347 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
4348 		/* Use alternate PCI devfn */
4349 		if (LSB(rid))
4350 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
4351 
4352 		/* Use Disable MSIX Handshake mode for capable adapters */
4353 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
4354 		    (ha->flags.msix_enabled)) {
4355 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
4356 			ha->flags.disable_msix_handshake = 1;
4357 			ql_dbg(ql_dbg_init, vha, 0x00fe,
4358 			    "MSIX Handshake Disable Mode turned on.\n");
4359 		} else {
4360 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
4361 		}
4362 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
4363 
4364 		wrt_reg_dword(&reg->isp25mq.req_q_in, 0);
4365 		wrt_reg_dword(&reg->isp25mq.req_q_out, 0);
4366 		wrt_reg_dword(&reg->isp25mq.rsp_q_in, 0);
4367 		wrt_reg_dword(&reg->isp25mq.rsp_q_out, 0);
4368 	} else {
4369 		wrt_reg_dword(&reg->isp24.req_q_in, 0);
4370 		wrt_reg_dword(&reg->isp24.req_q_out, 0);
4371 		wrt_reg_dword(&reg->isp24.rsp_q_in, 0);
4372 		wrt_reg_dword(&reg->isp24.rsp_q_out, 0);
4373 	}
4374 
4375 	qlt_24xx_config_rings(vha);
4376 
4377 	/* If the user has configured the speed, set it here */
4378 	if (ha->set_data_rate) {
4379 		ql_dbg(ql_dbg_init, vha, 0x00fd,
4380 		    "Speed set by user : %s Gbps \n",
4381 		    qla2x00_get_link_speed_str(ha, ha->set_data_rate));
4382 		icb->firmware_options_3 = cpu_to_le32(ha->set_data_rate << 13);
4383 	}
4384 
4385 	/* PCI posting */
4386 	rd_reg_word(&ioreg->hccr);
4387 }
4388 
4389 /**
4390  * qla2x00_init_rings() - Initializes firmware.
4391  * @vha: HA context
4392  *
4393  * Beginning of request ring has initialization control block already built
4394  * by nvram config routine.
4395  *
4396  * Returns 0 on success.
4397  */
4398 int
4399 qla2x00_init_rings(scsi_qla_host_t *vha)
4400 {
4401 	int	rval;
4402 	unsigned long flags = 0;
4403 	int cnt, que;
4404 	struct qla_hw_data *ha = vha->hw;
4405 	struct req_que *req;
4406 	struct rsp_que *rsp;
4407 	struct mid_init_cb_24xx *mid_init_cb =
4408 	    (struct mid_init_cb_24xx *) ha->init_cb;
4409 
4410 	spin_lock_irqsave(&ha->hardware_lock, flags);
4411 
4412 	/* Clear outstanding commands array. */
4413 	for (que = 0; que < ha->max_req_queues; que++) {
4414 		req = ha->req_q_map[que];
4415 		if (!req || !test_bit(que, ha->req_qid_map))
4416 			continue;
4417 		req->out_ptr = (uint16_t *)(req->ring + req->length);
4418 		*req->out_ptr = 0;
4419 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
4420 			req->outstanding_cmds[cnt] = NULL;
4421 
4422 		req->current_outstanding_cmd = 1;
4423 
4424 		/* Initialize firmware. */
4425 		req->ring_ptr  = req->ring;
4426 		req->ring_index    = 0;
4427 		req->cnt      = req->length;
4428 	}
4429 
4430 	for (que = 0; que < ha->max_rsp_queues; que++) {
4431 		rsp = ha->rsp_q_map[que];
4432 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
4433 			continue;
4434 		rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
4435 		*rsp->in_ptr = 0;
4436 		/* Initialize response queue entries */
4437 		if (IS_QLAFX00(ha))
4438 			qlafx00_init_response_q_entries(rsp);
4439 		else
4440 			qla2x00_init_response_q_entries(rsp);
4441 	}
4442 
4443 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
4444 	ha->tgt.atio_ring_index = 0;
4445 	/* Initialize ATIO queue entries */
4446 	qlt_init_atio_q_entries(vha);
4447 
4448 	ha->isp_ops->config_rings(vha);
4449 
4450 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4451 
4452 	if (IS_QLAFX00(ha)) {
4453 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
4454 		goto next_check;
4455 	}
4456 
4457 	/* Update any ISP specific firmware options before initialization. */
4458 	ha->isp_ops->update_fw_options(vha);
4459 
4460 	ql_dbg(ql_dbg_init, vha, 0x00d1,
4461 	       "Issue init firmware FW opt 1-3= %08x %08x %08x.\n",
4462 	       le32_to_cpu(mid_init_cb->init_cb.firmware_options_1),
4463 	       le32_to_cpu(mid_init_cb->init_cb.firmware_options_2),
4464 	       le32_to_cpu(mid_init_cb->init_cb.firmware_options_3));
4465 
4466 	if (ha->flags.npiv_supported) {
4467 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
4468 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
4469 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
4470 	}
4471 
4472 	if (IS_FWI2_CAPABLE(ha)) {
4473 		mid_init_cb->options = cpu_to_le16(BIT_1);
4474 		mid_init_cb->init_cb.execution_throttle =
4475 		    cpu_to_le16(ha->cur_fw_xcb_count);
4476 		ha->flags.dport_enabled =
4477 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4478 			 BIT_7) != 0;
4479 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
4480 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
4481 		/* FA-WWPN Status */
4482 		ha->flags.fawwpn_enabled =
4483 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4484 			 BIT_6) != 0;
4485 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
4486 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
4487 	}
4488 
4489 	/* ELS pass through payload is limit by frame size. */
4490 	if (ha->flags.edif_enabled)
4491 		mid_init_cb->init_cb.frame_payload_size = cpu_to_le16(ELS_MAX_PAYLOAD);
4492 
4493 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
4494 next_check:
4495 	if (rval) {
4496 		ql_log(ql_log_fatal, vha, 0x00d2,
4497 		    "Init Firmware **** FAILED ****.\n");
4498 	} else {
4499 		ql_dbg(ql_dbg_init, vha, 0x00d3,
4500 		    "Init Firmware -- success.\n");
4501 		QLA_FW_STARTED(ha);
4502 		vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
4503 	}
4504 
4505 	return (rval);
4506 }
4507 
4508 /**
4509  * qla2x00_fw_ready() - Waits for firmware ready.
4510  * @vha: HA context
4511  *
4512  * Returns 0 on success.
4513  */
4514 static int
4515 qla2x00_fw_ready(scsi_qla_host_t *vha)
4516 {
4517 	int		rval;
4518 	unsigned long	wtime, mtime, cs84xx_time;
4519 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
4520 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
4521 	uint16_t	state[6];
4522 	struct qla_hw_data *ha = vha->hw;
4523 
4524 	if (IS_QLAFX00(vha->hw))
4525 		return qlafx00_fw_ready(vha);
4526 
4527 	/* Time to wait for loop down */
4528 	if (IS_P3P_TYPE(ha))
4529 		min_wait = 30;
4530 	else
4531 		min_wait = 20;
4532 
4533 	/*
4534 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
4535 	 * our own processing.
4536 	 */
4537 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
4538 		wait_time = min_wait;
4539 	}
4540 
4541 	/* Min wait time if loop down */
4542 	mtime = jiffies + (min_wait * HZ);
4543 
4544 	/* wait time before firmware ready */
4545 	wtime = jiffies + (wait_time * HZ);
4546 
4547 	/* Wait for ISP to finish LIP */
4548 	if (!vha->flags.init_done)
4549 		ql_log(ql_log_info, vha, 0x801e,
4550 		    "Waiting for LIP to complete.\n");
4551 
4552 	do {
4553 		memset(state, -1, sizeof(state));
4554 		rval = qla2x00_get_firmware_state(vha, state);
4555 		if (rval == QLA_SUCCESS) {
4556 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
4557 				vha->device_flags &= ~DFLG_NO_CABLE;
4558 			}
4559 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
4560 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
4561 				    "fw_state=%x 84xx=%x.\n", state[0],
4562 				    state[2]);
4563 				if ((state[2] & FSTATE_LOGGED_IN) &&
4564 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
4565 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
4566 					    "Sending verify iocb.\n");
4567 
4568 					cs84xx_time = jiffies;
4569 					rval = qla84xx_init_chip(vha);
4570 					if (rval != QLA_SUCCESS) {
4571 						ql_log(ql_log_warn,
4572 						    vha, 0x8007,
4573 						    "Init chip failed.\n");
4574 						break;
4575 					}
4576 
4577 					/* Add time taken to initialize. */
4578 					cs84xx_time = jiffies - cs84xx_time;
4579 					wtime += cs84xx_time;
4580 					mtime += cs84xx_time;
4581 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
4582 					    "Increasing wait time by %ld. "
4583 					    "New time %ld.\n", cs84xx_time,
4584 					    wtime);
4585 				}
4586 			} else if (state[0] == FSTATE_READY) {
4587 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
4588 				    "F/W Ready - OK.\n");
4589 
4590 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
4591 				    &ha->login_timeout, &ha->r_a_tov);
4592 
4593 				rval = QLA_SUCCESS;
4594 				break;
4595 			}
4596 
4597 			rval = QLA_FUNCTION_FAILED;
4598 
4599 			if (atomic_read(&vha->loop_down_timer) &&
4600 			    state[0] != FSTATE_READY) {
4601 				/* Loop down. Timeout on min_wait for states
4602 				 * other than Wait for Login.
4603 				 */
4604 				if (time_after_eq(jiffies, mtime)) {
4605 					ql_log(ql_log_info, vha, 0x8038,
4606 					    "Cable is unplugged...\n");
4607 
4608 					vha->device_flags |= DFLG_NO_CABLE;
4609 					break;
4610 				}
4611 			}
4612 		} else {
4613 			/* Mailbox cmd failed. Timeout on min_wait. */
4614 			if (time_after_eq(jiffies, mtime) ||
4615 				ha->flags.isp82xx_fw_hung)
4616 				break;
4617 		}
4618 
4619 		if (time_after_eq(jiffies, wtime))
4620 			break;
4621 
4622 		/* Delay for a while */
4623 		msleep(500);
4624 	} while (1);
4625 
4626 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
4627 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
4628 	    state[1], state[2], state[3], state[4], state[5], jiffies);
4629 
4630 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
4631 		ql_log(ql_log_warn, vha, 0x803b,
4632 		    "Firmware ready **** FAILED ****.\n");
4633 	}
4634 
4635 	return (rval);
4636 }
4637 
4638 /*
4639 *  qla2x00_configure_hba
4640 *      Setup adapter context.
4641 *
4642 * Input:
4643 *      ha = adapter state pointer.
4644 *
4645 * Returns:
4646 *      0 = success
4647 *
4648 * Context:
4649 *      Kernel context.
4650 */
4651 static int
4652 qla2x00_configure_hba(scsi_qla_host_t *vha)
4653 {
4654 	int       rval;
4655 	uint16_t      loop_id;
4656 	uint16_t      topo;
4657 	uint16_t      sw_cap;
4658 	uint8_t       al_pa;
4659 	uint8_t       area;
4660 	uint8_t       domain;
4661 	char		connect_type[22];
4662 	struct qla_hw_data *ha = vha->hw;
4663 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4664 	port_id_t id;
4665 	unsigned long flags;
4666 
4667 	/* Get host addresses. */
4668 	rval = qla2x00_get_adapter_id(vha,
4669 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4670 	if (rval != QLA_SUCCESS) {
4671 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4672 		    IS_CNA_CAPABLE(ha) ||
4673 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4674 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4675 			    "Loop is in a transition state.\n");
4676 		} else {
4677 			ql_log(ql_log_warn, vha, 0x2009,
4678 			    "Unable to get host loop ID.\n");
4679 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4680 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4681 				ql_log(ql_log_warn, vha, 0x1151,
4682 				    "Doing link init.\n");
4683 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4684 					return rval;
4685 			}
4686 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4687 		}
4688 		return (rval);
4689 	}
4690 
4691 	if (topo == 4) {
4692 		ql_log(ql_log_info, vha, 0x200a,
4693 		    "Cannot get topology - retrying.\n");
4694 		return (QLA_FUNCTION_FAILED);
4695 	}
4696 
4697 	vha->loop_id = loop_id;
4698 
4699 	/* initialize */
4700 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4701 	ha->operating_mode = LOOP;
4702 
4703 	switch (topo) {
4704 	case 0:
4705 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4706 		ha->switch_cap = 0;
4707 		ha->current_topology = ISP_CFG_NL;
4708 		strcpy(connect_type, "(Loop)");
4709 		break;
4710 
4711 	case 1:
4712 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4713 		ha->switch_cap = sw_cap;
4714 		ha->current_topology = ISP_CFG_FL;
4715 		strcpy(connect_type, "(FL_Port)");
4716 		break;
4717 
4718 	case 2:
4719 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4720 		ha->switch_cap = 0;
4721 		ha->operating_mode = P2P;
4722 		ha->current_topology = ISP_CFG_N;
4723 		strcpy(connect_type, "(N_Port-to-N_Port)");
4724 		break;
4725 
4726 	case 3:
4727 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4728 		ha->switch_cap = sw_cap;
4729 		ha->operating_mode = P2P;
4730 		ha->current_topology = ISP_CFG_F;
4731 		strcpy(connect_type, "(F_Port)");
4732 		break;
4733 
4734 	default:
4735 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4736 		    "HBA in unknown topology %x, using NL.\n", topo);
4737 		ha->switch_cap = 0;
4738 		ha->current_topology = ISP_CFG_NL;
4739 		strcpy(connect_type, "(Loop)");
4740 		break;
4741 	}
4742 
4743 	/* Save Host port and loop ID. */
4744 	/* byte order - Big Endian */
4745 	id.b.domain = domain;
4746 	id.b.area = area;
4747 	id.b.al_pa = al_pa;
4748 	id.b.rsvd_1 = 0;
4749 	spin_lock_irqsave(&ha->hardware_lock, flags);
4750 	if (vha->hw->flags.edif_enabled) {
4751 		if (topo != 2)
4752 			qlt_update_host_map(vha, id);
4753 	} else if (!(topo == 2 && ha->flags.n2n_bigger))
4754 		qlt_update_host_map(vha, id);
4755 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4756 
4757 	if (!vha->flags.init_done)
4758 		ql_log(ql_log_info, vha, 0x2010,
4759 		    "Topology - %s, Host Loop address 0x%x.\n",
4760 		    connect_type, vha->loop_id);
4761 
4762 	return(rval);
4763 }
4764 
4765 inline void
4766 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4767 		       const char *def)
4768 {
4769 	char *st, *en;
4770 	uint16_t index;
4771 	uint64_t zero[2] = { 0 };
4772 	struct qla_hw_data *ha = vha->hw;
4773 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4774 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4775 
4776 	if (len > sizeof(zero))
4777 		len = sizeof(zero);
4778 	if (memcmp(model, &zero, len) != 0) {
4779 		memcpy(ha->model_number, model, len);
4780 		st = en = ha->model_number;
4781 		en += len - 1;
4782 		while (en > st) {
4783 			if (*en != 0x20 && *en != 0x00)
4784 				break;
4785 			*en-- = '\0';
4786 		}
4787 
4788 		index = (ha->pdev->subsystem_device & 0xff);
4789 		if (use_tbl &&
4790 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4791 		    index < QLA_MODEL_NAMES)
4792 			strlcpy(ha->model_desc,
4793 			    qla2x00_model_name[index * 2 + 1],
4794 			    sizeof(ha->model_desc));
4795 	} else {
4796 		index = (ha->pdev->subsystem_device & 0xff);
4797 		if (use_tbl &&
4798 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4799 		    index < QLA_MODEL_NAMES) {
4800 			strlcpy(ha->model_number,
4801 				qla2x00_model_name[index * 2],
4802 				sizeof(ha->model_number));
4803 			strlcpy(ha->model_desc,
4804 			    qla2x00_model_name[index * 2 + 1],
4805 			    sizeof(ha->model_desc));
4806 		} else {
4807 			strlcpy(ha->model_number, def,
4808 				sizeof(ha->model_number));
4809 		}
4810 	}
4811 	if (IS_FWI2_CAPABLE(ha))
4812 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4813 		    sizeof(ha->model_desc));
4814 }
4815 
4816 /* On sparc systems, obtain port and node WWN from firmware
4817  * properties.
4818  */
4819 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4820 {
4821 #ifdef CONFIG_SPARC
4822 	struct qla_hw_data *ha = vha->hw;
4823 	struct pci_dev *pdev = ha->pdev;
4824 	struct device_node *dp = pci_device_to_OF_node(pdev);
4825 	const u8 *val;
4826 	int len;
4827 
4828 	val = of_get_property(dp, "port-wwn", &len);
4829 	if (val && len >= WWN_SIZE)
4830 		memcpy(nv->port_name, val, WWN_SIZE);
4831 
4832 	val = of_get_property(dp, "node-wwn", &len);
4833 	if (val && len >= WWN_SIZE)
4834 		memcpy(nv->node_name, val, WWN_SIZE);
4835 #endif
4836 }
4837 
4838 /*
4839 * NVRAM configuration for ISP 2xxx
4840 *
4841 * Input:
4842 *      ha                = adapter block pointer.
4843 *
4844 * Output:
4845 *      initialization control block in response_ring
4846 *      host adapters parameters in host adapter block
4847 *
4848 * Returns:
4849 *      0 = success.
4850 */
4851 int
4852 qla2x00_nvram_config(scsi_qla_host_t *vha)
4853 {
4854 	int             rval;
4855 	uint8_t         chksum = 0;
4856 	uint16_t        cnt;
4857 	uint8_t         *dptr1, *dptr2;
4858 	struct qla_hw_data *ha = vha->hw;
4859 	init_cb_t       *icb = ha->init_cb;
4860 	nvram_t         *nv = ha->nvram;
4861 	uint8_t         *ptr = ha->nvram;
4862 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4863 
4864 	rval = QLA_SUCCESS;
4865 
4866 	/* Determine NVRAM starting address. */
4867 	ha->nvram_size = sizeof(*nv);
4868 	ha->nvram_base = 0;
4869 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4870 		if ((rd_reg_word(&reg->ctrl_status) >> 14) == 1)
4871 			ha->nvram_base = 0x80;
4872 
4873 	/* Get NVRAM data and calculate checksum. */
4874 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4875 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4876 		chksum += *ptr++;
4877 
4878 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4879 	    "Contents of NVRAM.\n");
4880 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4881 	    nv, ha->nvram_size);
4882 
4883 	/* Bad NVRAM data, set defaults parameters. */
4884 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
4885 	    nv->nvram_version < 1) {
4886 		/* Reset NVRAM data. */
4887 		ql_log(ql_log_warn, vha, 0x0064,
4888 		    "Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
4889 		    chksum, nv->id, nv->nvram_version);
4890 		ql_log(ql_log_warn, vha, 0x0065,
4891 		    "Falling back to "
4892 		    "functioning (yet invalid -- WWPN) defaults.\n");
4893 
4894 		/*
4895 		 * Set default initialization control block.
4896 		 */
4897 		memset(nv, 0, ha->nvram_size);
4898 		nv->parameter_block_version = ICB_VERSION;
4899 
4900 		if (IS_QLA23XX(ha)) {
4901 			nv->firmware_options[0] = BIT_2 | BIT_1;
4902 			nv->firmware_options[1] = BIT_7 | BIT_5;
4903 			nv->add_firmware_options[0] = BIT_5;
4904 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4905 			nv->frame_payload_size = cpu_to_le16(2048);
4906 			nv->special_options[1] = BIT_7;
4907 		} else if (IS_QLA2200(ha)) {
4908 			nv->firmware_options[0] = BIT_2 | BIT_1;
4909 			nv->firmware_options[1] = BIT_7 | BIT_5;
4910 			nv->add_firmware_options[0] = BIT_5;
4911 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4912 			nv->frame_payload_size = cpu_to_le16(1024);
4913 		} else if (IS_QLA2100(ha)) {
4914 			nv->firmware_options[0] = BIT_3 | BIT_1;
4915 			nv->firmware_options[1] = BIT_5;
4916 			nv->frame_payload_size = cpu_to_le16(1024);
4917 		}
4918 
4919 		nv->max_iocb_allocation = cpu_to_le16(256);
4920 		nv->execution_throttle = cpu_to_le16(16);
4921 		nv->retry_count = 8;
4922 		nv->retry_delay = 1;
4923 
4924 		nv->port_name[0] = 33;
4925 		nv->port_name[3] = 224;
4926 		nv->port_name[4] = 139;
4927 
4928 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
4929 
4930 		nv->login_timeout = 4;
4931 
4932 		/*
4933 		 * Set default host adapter parameters
4934 		 */
4935 		nv->host_p[1] = BIT_2;
4936 		nv->reset_delay = 5;
4937 		nv->port_down_retry_count = 8;
4938 		nv->max_luns_per_target = cpu_to_le16(8);
4939 		nv->link_down_timeout = 60;
4940 
4941 		rval = 1;
4942 	}
4943 
4944 	/* Reset Initialization control block */
4945 	memset(icb, 0, ha->init_cb_size);
4946 
4947 	/*
4948 	 * Setup driver NVRAM options.
4949 	 */
4950 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
4951 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
4952 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
4953 	nv->firmware_options[1] &= ~BIT_4;
4954 
4955 	if (IS_QLA23XX(ha)) {
4956 		nv->firmware_options[0] |= BIT_2;
4957 		nv->firmware_options[0] &= ~BIT_3;
4958 		nv->special_options[0] &= ~BIT_6;
4959 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
4960 
4961 		if (IS_QLA2300(ha)) {
4962 			if (ha->fb_rev == FPM_2310) {
4963 				strcpy(ha->model_number, "QLA2310");
4964 			} else {
4965 				strcpy(ha->model_number, "QLA2300");
4966 			}
4967 		} else {
4968 			qla2x00_set_model_info(vha, nv->model_number,
4969 			    sizeof(nv->model_number), "QLA23xx");
4970 		}
4971 	} else if (IS_QLA2200(ha)) {
4972 		nv->firmware_options[0] |= BIT_2;
4973 		/*
4974 		 * 'Point-to-point preferred, else loop' is not a safe
4975 		 * connection mode setting.
4976 		 */
4977 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
4978 		    (BIT_5 | BIT_4)) {
4979 			/* Force 'loop preferred, else point-to-point'. */
4980 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
4981 			nv->add_firmware_options[0] |= BIT_5;
4982 		}
4983 		strcpy(ha->model_number, "QLA22xx");
4984 	} else /*if (IS_QLA2100(ha))*/ {
4985 		strcpy(ha->model_number, "QLA2100");
4986 	}
4987 
4988 	/*
4989 	 * Copy over NVRAM RISC parameter block to initialization control block.
4990 	 */
4991 	dptr1 = (uint8_t *)icb;
4992 	dptr2 = (uint8_t *)&nv->parameter_block_version;
4993 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
4994 	while (cnt--)
4995 		*dptr1++ = *dptr2++;
4996 
4997 	/* Copy 2nd half. */
4998 	dptr1 = (uint8_t *)icb->add_firmware_options;
4999 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
5000 	while (cnt--)
5001 		*dptr1++ = *dptr2++;
5002 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
5003 	/* Use alternate WWN? */
5004 	if (nv->host_p[1] & BIT_7) {
5005 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
5006 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
5007 	}
5008 
5009 	/* Prepare nodename */
5010 	if ((icb->firmware_options[1] & BIT_6) == 0) {
5011 		/*
5012 		 * Firmware will apply the following mask if the nodename was
5013 		 * not provided.
5014 		 */
5015 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
5016 		icb->node_name[0] &= 0xF0;
5017 	}
5018 
5019 	/*
5020 	 * Set host adapter parameters.
5021 	 */
5022 
5023 	/*
5024 	 * BIT_7 in the host-parameters section allows for modification to
5025 	 * internal driver logging.
5026 	 */
5027 	if (nv->host_p[0] & BIT_7)
5028 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
5029 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
5030 	/* Always load RISC code on non ISP2[12]00 chips. */
5031 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
5032 		ha->flags.disable_risc_code_load = 0;
5033 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
5034 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
5035 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
5036 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
5037 	ha->flags.disable_serdes = 0;
5038 
5039 	ha->operating_mode =
5040 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
5041 
5042 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
5043 	    sizeof(ha->fw_seriallink_options));
5044 
5045 	/* save HBA serial number */
5046 	ha->serial0 = icb->port_name[5];
5047 	ha->serial1 = icb->port_name[6];
5048 	ha->serial2 = icb->port_name[7];
5049 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
5050 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
5051 
5052 	icb->execution_throttle = cpu_to_le16(0xFFFF);
5053 
5054 	ha->retry_count = nv->retry_count;
5055 
5056 	/* Set minimum login_timeout to 4 seconds. */
5057 	if (nv->login_timeout != ql2xlogintimeout)
5058 		nv->login_timeout = ql2xlogintimeout;
5059 	if (nv->login_timeout < 4)
5060 		nv->login_timeout = 4;
5061 	ha->login_timeout = nv->login_timeout;
5062 
5063 	/* Set minimum RATOV to 100 tenths of a second. */
5064 	ha->r_a_tov = 100;
5065 
5066 	ha->loop_reset_delay = nv->reset_delay;
5067 
5068 	/* Link Down Timeout = 0:
5069 	 *
5070 	 * 	When Port Down timer expires we will start returning
5071 	 *	I/O's to OS with "DID_NO_CONNECT".
5072 	 *
5073 	 * Link Down Timeout != 0:
5074 	 *
5075 	 *	 The driver waits for the link to come up after link down
5076 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
5077 	 */
5078 	if (nv->link_down_timeout == 0) {
5079 		ha->loop_down_abort_time =
5080 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
5081 	} else {
5082 		ha->link_down_timeout =	 nv->link_down_timeout;
5083 		ha->loop_down_abort_time =
5084 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
5085 	}
5086 
5087 	/*
5088 	 * Need enough time to try and get the port back.
5089 	 */
5090 	ha->port_down_retry_count = nv->port_down_retry_count;
5091 	if (qlport_down_retry)
5092 		ha->port_down_retry_count = qlport_down_retry;
5093 	/* Set login_retry_count */
5094 	ha->login_retry_count  = nv->retry_count;
5095 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
5096 	    ha->port_down_retry_count > 3)
5097 		ha->login_retry_count = ha->port_down_retry_count;
5098 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
5099 		ha->login_retry_count = ha->port_down_retry_count;
5100 	if (ql2xloginretrycount)
5101 		ha->login_retry_count = ql2xloginretrycount;
5102 
5103 	icb->lun_enables = cpu_to_le16(0);
5104 	icb->command_resource_count = 0;
5105 	icb->immediate_notify_resource_count = 0;
5106 	icb->timeout = cpu_to_le16(0);
5107 
5108 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
5109 		/* Enable RIO */
5110 		icb->firmware_options[0] &= ~BIT_3;
5111 		icb->add_firmware_options[0] &=
5112 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
5113 		icb->add_firmware_options[0] |= BIT_2;
5114 		icb->response_accumulation_timer = 3;
5115 		icb->interrupt_delay_timer = 5;
5116 
5117 		vha->flags.process_response_queue = 1;
5118 	} else {
5119 		/* Enable ZIO. */
5120 		if (!vha->flags.init_done) {
5121 			ha->zio_mode = icb->add_firmware_options[0] &
5122 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
5123 			ha->zio_timer = icb->interrupt_delay_timer ?
5124 			    icb->interrupt_delay_timer : 2;
5125 		}
5126 		icb->add_firmware_options[0] &=
5127 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
5128 		vha->flags.process_response_queue = 0;
5129 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
5130 			ha->zio_mode = QLA_ZIO_MODE_6;
5131 
5132 			ql_log(ql_log_info, vha, 0x0068,
5133 			    "ZIO mode %d enabled; timer delay (%d us).\n",
5134 			    ha->zio_mode, ha->zio_timer * 100);
5135 
5136 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
5137 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
5138 			vha->flags.process_response_queue = 1;
5139 		}
5140 	}
5141 
5142 	if (rval) {
5143 		ql_log(ql_log_warn, vha, 0x0069,
5144 		    "NVRAM configuration failed.\n");
5145 	}
5146 	return (rval);
5147 }
5148 
5149 static void
5150 qla2x00_rport_del(void *data)
5151 {
5152 	fc_port_t *fcport = data;
5153 	struct fc_rport *rport;
5154 	unsigned long flags;
5155 
5156 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5157 	rport = fcport->drport ? fcport->drport : fcport->rport;
5158 	fcport->drport = NULL;
5159 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5160 	if (rport) {
5161 		ql_dbg(ql_dbg_disc, fcport->vha, 0x210b,
5162 		    "%s %8phN. rport %p roles %x\n",
5163 		    __func__, fcport->port_name, rport,
5164 		    rport->roles);
5165 
5166 		fc_remote_port_delete(rport);
5167 	}
5168 }
5169 
5170 void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
5171 {
5172 	int old_state;
5173 
5174 	old_state = atomic_read(&fcport->state);
5175 	atomic_set(&fcport->state, state);
5176 
5177 	/* Don't print state transitions during initial allocation of fcport */
5178 	if (old_state && old_state != state) {
5179 		ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
5180 		       "FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
5181 		       fcport->port_name, port_state_str[old_state],
5182 		       port_state_str[state], fcport->d_id.b.domain,
5183 		       fcport->d_id.b.area, fcport->d_id.b.al_pa);
5184 	}
5185 }
5186 
5187 /**
5188  * qla2x00_alloc_fcport() - Allocate a generic fcport.
5189  * @vha: HA context
5190  * @flags: allocation flags
5191  *
5192  * Returns a pointer to the allocated fcport, or NULL, if none available.
5193  */
5194 fc_port_t *
5195 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
5196 {
5197 	fc_port_t *fcport;
5198 
5199 	fcport = kzalloc(sizeof(fc_port_t), flags);
5200 	if (!fcport)
5201 		return NULL;
5202 
5203 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
5204 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
5205 		flags);
5206 	if (!fcport->ct_desc.ct_sns) {
5207 		ql_log(ql_log_warn, vha, 0xd049,
5208 		    "Failed to allocate ct_sns request.\n");
5209 		kfree(fcport);
5210 		return NULL;
5211 	}
5212 
5213 	/* Setup fcport template structure. */
5214 	fcport->vha = vha;
5215 	fcport->port_type = FCT_UNKNOWN;
5216 	fcport->loop_id = FC_NO_LOOP_ID;
5217 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
5218 	fcport->supported_classes = FC_COS_UNSPECIFIED;
5219 	fcport->fp_speed = PORT_SPEED_UNKNOWN;
5220 
5221 	fcport->disc_state = DSC_DELETED;
5222 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
5223 	fcport->deleted = QLA_SESS_DELETED;
5224 	fcport->login_retry = vha->hw->login_retry_count;
5225 	fcport->chip_reset = vha->hw->base_qpair->chip_reset;
5226 	fcport->logout_on_delete = 1;
5227 	fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
5228 	fcport->tgt_short_link_down_cnt = 0;
5229 	fcport->dev_loss_tmo = 0;
5230 
5231 	if (!fcport->ct_desc.ct_sns) {
5232 		ql_log(ql_log_warn, vha, 0xd049,
5233 		    "Failed to allocate ct_sns request.\n");
5234 		kfree(fcport);
5235 		return NULL;
5236 	}
5237 
5238 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
5239 	INIT_WORK(&fcport->free_work, qlt_free_session_done);
5240 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
5241 	INIT_LIST_HEAD(&fcport->gnl_entry);
5242 	INIT_LIST_HEAD(&fcport->list);
5243 
5244 	INIT_LIST_HEAD(&fcport->sess_cmd_list);
5245 	spin_lock_init(&fcport->sess_cmd_lock);
5246 
5247 	spin_lock_init(&fcport->edif.sa_list_lock);
5248 	INIT_LIST_HEAD(&fcport->edif.tx_sa_list);
5249 	INIT_LIST_HEAD(&fcport->edif.rx_sa_list);
5250 
5251 	if (vha->e_dbell.db_flags == EDB_ACTIVE)
5252 		fcport->edif.app_started = 1;
5253 
5254 	spin_lock_init(&fcport->edif.indx_list_lock);
5255 	INIT_LIST_HEAD(&fcport->edif.edif_indx_list);
5256 
5257 	return fcport;
5258 }
5259 
5260 void
5261 qla2x00_free_fcport(fc_port_t *fcport)
5262 {
5263 	if (fcport->ct_desc.ct_sns) {
5264 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
5265 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
5266 			fcport->ct_desc.ct_sns_dma);
5267 
5268 		fcport->ct_desc.ct_sns = NULL;
5269 	}
5270 
5271 	qla_edif_flush_sa_ctl_lists(fcport);
5272 	list_del(&fcport->list);
5273 	qla2x00_clear_loop_id(fcport);
5274 
5275 	qla_edif_list_del(fcport);
5276 
5277 	kfree(fcport);
5278 }
5279 
5280 static void qla_get_login_template(scsi_qla_host_t *vha)
5281 {
5282 	struct qla_hw_data *ha = vha->hw;
5283 	int rval;
5284 	u32 *bp, sz;
5285 	__be32 *q;
5286 
5287 	memset(ha->init_cb, 0, ha->init_cb_size);
5288 	sz = min_t(int, sizeof(struct fc_els_flogi), ha->init_cb_size);
5289 	rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma,
5290 					    ha->init_cb, sz);
5291 	if (rval != QLA_SUCCESS) {
5292 		ql_dbg(ql_dbg_init, vha, 0x00d1,
5293 		       "PLOGI ELS param read fail.\n");
5294 		return;
5295 	}
5296 	q = (__be32 *)&ha->plogi_els_payld.fl_csp;
5297 
5298 	bp = (uint32_t *)ha->init_cb;
5299 	cpu_to_be32_array(q, bp, sz / 4);
5300 	ha->flags.plogi_template_valid = 1;
5301 }
5302 
5303 /*
5304  * qla2x00_configure_loop
5305  *      Updates Fibre Channel Device Database with what is actually on loop.
5306  *
5307  * Input:
5308  *      ha                = adapter block pointer.
5309  *
5310  * Returns:
5311  *      0 = success.
5312  *      1 = error.
5313  *      2 = database was full and device was not configured.
5314  */
5315 static int
5316 qla2x00_configure_loop(scsi_qla_host_t *vha)
5317 {
5318 	int  rval;
5319 	unsigned long flags, save_flags;
5320 	struct qla_hw_data *ha = vha->hw;
5321 
5322 	rval = QLA_SUCCESS;
5323 
5324 	/* Get Initiator ID */
5325 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
5326 		rval = qla2x00_configure_hba(vha);
5327 		if (rval != QLA_SUCCESS) {
5328 			ql_dbg(ql_dbg_disc, vha, 0x2013,
5329 			    "Unable to configure HBA.\n");
5330 			return (rval);
5331 		}
5332 	}
5333 
5334 	save_flags = flags = vha->dpc_flags;
5335 	ql_dbg(ql_dbg_disc, vha, 0x2014,
5336 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
5337 
5338 	/*
5339 	 * If we have both an RSCN and PORT UPDATE pending then handle them
5340 	 * both at the same time.
5341 	 */
5342 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5343 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
5344 
5345 	qla2x00_get_data_rate(vha);
5346 	qla_get_login_template(vha);
5347 
5348 	/* Determine what we need to do */
5349 	if ((ha->current_topology == ISP_CFG_FL ||
5350 	    ha->current_topology == ISP_CFG_F) &&
5351 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
5352 
5353 		set_bit(RSCN_UPDATE, &flags);
5354 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
5355 
5356 	} else if (ha->current_topology == ISP_CFG_NL ||
5357 		   ha->current_topology == ISP_CFG_N) {
5358 		clear_bit(RSCN_UPDATE, &flags);
5359 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5360 	} else if (!vha->flags.online ||
5361 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
5362 		set_bit(RSCN_UPDATE, &flags);
5363 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5364 	}
5365 
5366 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
5367 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5368 			ql_dbg(ql_dbg_disc, vha, 0x2015,
5369 			    "Loop resync needed, failing.\n");
5370 			rval = QLA_FUNCTION_FAILED;
5371 		} else
5372 			rval = qla2x00_configure_local_loop(vha);
5373 	}
5374 
5375 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
5376 		if (LOOP_TRANSITION(vha)) {
5377 			ql_dbg(ql_dbg_disc, vha, 0x2099,
5378 			    "Needs RSCN update and loop transition.\n");
5379 			rval = QLA_FUNCTION_FAILED;
5380 		}
5381 		else
5382 			rval = qla2x00_configure_fabric(vha);
5383 	}
5384 
5385 	if (rval == QLA_SUCCESS) {
5386 		if (atomic_read(&vha->loop_down_timer) ||
5387 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5388 			rval = QLA_FUNCTION_FAILED;
5389 		} else {
5390 			atomic_set(&vha->loop_state, LOOP_READY);
5391 			ql_dbg(ql_dbg_disc, vha, 0x2069,
5392 			    "LOOP READY.\n");
5393 			ha->flags.fw_init_done = 1;
5394 
5395 			/*
5396 			 * use link up to wake up app to get ready for
5397 			 * authentication.
5398 			 */
5399 			if (ha->flags.edif_enabled && DBELL_INACTIVE(vha))
5400 				qla2x00_post_aen_work(vha, FCH_EVT_LINKUP,
5401 						      ha->link_data_rate);
5402 
5403 			/*
5404 			 * Process any ATIO queue entries that came in
5405 			 * while we weren't online.
5406 			 */
5407 			if (qla_tgt_mode_enabled(vha) ||
5408 			    qla_dual_mode_enabled(vha)) {
5409 				spin_lock_irqsave(&ha->tgt.atio_lock, flags);
5410 				qlt_24xx_process_atio_queue(vha, 0);
5411 				spin_unlock_irqrestore(&ha->tgt.atio_lock,
5412 				    flags);
5413 			}
5414 		}
5415 	}
5416 
5417 	if (rval) {
5418 		ql_dbg(ql_dbg_disc, vha, 0x206a,
5419 		    "%s *** FAILED ***.\n", __func__);
5420 	} else {
5421 		ql_dbg(ql_dbg_disc, vha, 0x206b,
5422 		    "%s: exiting normally. local port wwpn %8phN id %06x)\n",
5423 		    __func__, vha->port_name, vha->d_id.b24);
5424 	}
5425 
5426 	/* Restore state if a resync event occurred during processing */
5427 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5428 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
5429 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5430 		if (test_bit(RSCN_UPDATE, &save_flags)) {
5431 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
5432 		}
5433 	}
5434 
5435 	return (rval);
5436 }
5437 
5438 static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha)
5439 {
5440 	unsigned long flags;
5441 	fc_port_t *fcport;
5442 
5443 	ql_dbg(ql_dbg_disc, vha, 0x206a, "%s %d.\n", __func__, __LINE__);
5444 
5445 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags))
5446 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5447 
5448 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5449 		if (fcport->n2n_flag) {
5450 			qla24xx_fcport_handle_login(vha, fcport);
5451 			return QLA_SUCCESS;
5452 		}
5453 	}
5454 
5455 	spin_lock_irqsave(&vha->work_lock, flags);
5456 	vha->scan.scan_retry++;
5457 	spin_unlock_irqrestore(&vha->work_lock, flags);
5458 
5459 	if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5460 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5461 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5462 	}
5463 	return QLA_FUNCTION_FAILED;
5464 }
5465 
5466 /*
5467  * qla2x00_configure_local_loop
5468  *	Updates Fibre Channel Device Database with local loop devices.
5469  *
5470  * Input:
5471  *	ha = adapter block pointer.
5472  *
5473  * Returns:
5474  *	0 = success.
5475  */
5476 static int
5477 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
5478 {
5479 	int		rval, rval2;
5480 	int		found_devs;
5481 	int		found;
5482 	fc_port_t	*fcport, *new_fcport;
5483 	uint16_t	index;
5484 	uint16_t	entries;
5485 	struct gid_list_info *gid;
5486 	uint16_t	loop_id;
5487 	uint8_t		domain, area, al_pa;
5488 	struct qla_hw_data *ha = vha->hw;
5489 	unsigned long flags;
5490 
5491 	/* Inititae N2N login. */
5492 	if (N2N_TOPO(ha))
5493 		return qla2x00_configure_n2n_loop(vha);
5494 
5495 	found_devs = 0;
5496 	new_fcport = NULL;
5497 	entries = MAX_FIBRE_DEVICES_LOOP;
5498 
5499 	/* Get list of logged in devices. */
5500 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
5501 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
5502 	    &entries);
5503 	if (rval != QLA_SUCCESS)
5504 		goto err;
5505 
5506 	ql_dbg(ql_dbg_disc, vha, 0x2011,
5507 	    "Entries in ID list (%d).\n", entries);
5508 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
5509 	    ha->gid_list, entries * sizeof(*ha->gid_list));
5510 
5511 	if (entries == 0) {
5512 		spin_lock_irqsave(&vha->work_lock, flags);
5513 		vha->scan.scan_retry++;
5514 		spin_unlock_irqrestore(&vha->work_lock, flags);
5515 
5516 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5517 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5518 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5519 		}
5520 	} else {
5521 		vha->scan.scan_retry = 0;
5522 	}
5523 
5524 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5525 		fcport->scan_state = QLA_FCPORT_SCAN;
5526 	}
5527 
5528 	/* Allocate temporary fcport for any new fcports discovered. */
5529 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5530 	if (new_fcport == NULL) {
5531 		ql_log(ql_log_warn, vha, 0x2012,
5532 		    "Memory allocation failed for fcport.\n");
5533 		rval = QLA_MEMORY_ALLOC_FAILED;
5534 		goto err;
5535 	}
5536 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5537 
5538 	/* Add devices to port list. */
5539 	gid = ha->gid_list;
5540 	for (index = 0; index < entries; index++) {
5541 		domain = gid->domain;
5542 		area = gid->area;
5543 		al_pa = gid->al_pa;
5544 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
5545 			loop_id = gid->loop_id_2100;
5546 		else
5547 			loop_id = le16_to_cpu(gid->loop_id);
5548 		gid = (void *)gid + ha->gid_list_info_size;
5549 
5550 		/* Bypass reserved domain fields. */
5551 		if ((domain & 0xf0) == 0xf0)
5552 			continue;
5553 
5554 		/* Bypass if not same domain and area of adapter. */
5555 		if (area && domain && ((area != vha->d_id.b.area) ||
5556 		    (domain != vha->d_id.b.domain)) &&
5557 		    (ha->current_topology == ISP_CFG_NL))
5558 			continue;
5559 
5560 
5561 		/* Bypass invalid local loop ID. */
5562 		if (loop_id > LAST_LOCAL_LOOP_ID)
5563 			continue;
5564 
5565 		memset(new_fcport->port_name, 0, WWN_SIZE);
5566 
5567 		/* Fill in member data. */
5568 		new_fcport->d_id.b.domain = domain;
5569 		new_fcport->d_id.b.area = area;
5570 		new_fcport->d_id.b.al_pa = al_pa;
5571 		new_fcport->loop_id = loop_id;
5572 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5573 
5574 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
5575 		if (rval2 != QLA_SUCCESS) {
5576 			ql_dbg(ql_dbg_disc, vha, 0x2097,
5577 			    "Failed to retrieve fcport information "
5578 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
5579 			    rval2, new_fcport->loop_id);
5580 			/* Skip retry if N2N */
5581 			if (ha->current_topology != ISP_CFG_N) {
5582 				ql_dbg(ql_dbg_disc, vha, 0x2105,
5583 				    "Scheduling resync.\n");
5584 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5585 				continue;
5586 			}
5587 		}
5588 
5589 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5590 		/* Check for matching device in port list. */
5591 		found = 0;
5592 		fcport = NULL;
5593 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5594 			if (memcmp(new_fcport->port_name, fcport->port_name,
5595 			    WWN_SIZE))
5596 				continue;
5597 
5598 			fcport->flags &= ~FCF_FABRIC_DEVICE;
5599 			fcport->loop_id = new_fcport->loop_id;
5600 			fcport->port_type = new_fcport->port_type;
5601 			fcport->d_id.b24 = new_fcport->d_id.b24;
5602 			memcpy(fcport->node_name, new_fcport->node_name,
5603 			    WWN_SIZE);
5604 			fcport->scan_state = QLA_FCPORT_FOUND;
5605 			found++;
5606 			break;
5607 		}
5608 
5609 		if (!found) {
5610 			/* New device, add to fcports list. */
5611 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
5612 
5613 			/* Allocate a new replacement fcport. */
5614 			fcport = new_fcport;
5615 
5616 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5617 
5618 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5619 
5620 			if (new_fcport == NULL) {
5621 				ql_log(ql_log_warn, vha, 0xd031,
5622 				    "Failed to allocate memory for fcport.\n");
5623 				rval = QLA_MEMORY_ALLOC_FAILED;
5624 				goto err;
5625 			}
5626 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5627 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5628 		}
5629 
5630 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5631 
5632 		/* Base iIDMA settings on HBA port speed. */
5633 		fcport->fp_speed = ha->link_data_rate;
5634 
5635 		found_devs++;
5636 	}
5637 
5638 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5639 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5640 			break;
5641 
5642 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5643 			if ((qla_dual_mode_enabled(vha) ||
5644 			    qla_ini_mode_enabled(vha)) &&
5645 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5646 				qla2x00_mark_device_lost(vha, fcport,
5647 					ql2xplogiabsentdevice);
5648 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5649 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5650 				    fcport->port_type != FCT_INITIATOR &&
5651 				    fcport->port_type != FCT_BROADCAST) {
5652 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5653 					    "%s %d %8phC post del sess\n",
5654 					    __func__, __LINE__,
5655 					    fcport->port_name);
5656 
5657 					qlt_schedule_sess_for_deletion(fcport);
5658 					continue;
5659 				}
5660 			}
5661 		}
5662 
5663 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5664 			qla24xx_fcport_handle_login(vha, fcport);
5665 	}
5666 
5667 	qla2x00_free_fcport(new_fcport);
5668 
5669 	return rval;
5670 
5671 err:
5672 	ql_dbg(ql_dbg_disc, vha, 0x2098,
5673 	       "Configure local loop error exit: rval=%x.\n", rval);
5674 	return rval;
5675 }
5676 
5677 static void
5678 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5679 {
5680 	int rval;
5681 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5682 	struct qla_hw_data *ha = vha->hw;
5683 
5684 	if (!IS_IIDMA_CAPABLE(ha))
5685 		return;
5686 
5687 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5688 		return;
5689 
5690 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5691 	    fcport->fp_speed > ha->link_data_rate ||
5692 	    !ha->flags.gpsc_supported)
5693 		return;
5694 
5695 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5696 	    mb);
5697 	if (rval != QLA_SUCCESS) {
5698 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5699 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5700 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5701 	} else {
5702 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5703 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5704 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5705 		    fcport->fp_speed, fcport->port_name);
5706 	}
5707 }
5708 
5709 void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5710 {
5711 	qla2x00_iidma_fcport(vha, fcport);
5712 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5713 }
5714 
5715 int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5716 {
5717 	struct qla_work_evt *e;
5718 
5719 	e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
5720 	if (!e)
5721 		return QLA_FUNCTION_FAILED;
5722 
5723 	e->u.fcport.fcport = fcport;
5724 	return qla2x00_post_work(vha, e);
5725 }
5726 
5727 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5728 static void
5729 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5730 {
5731 	struct fc_rport_identifiers rport_ids;
5732 	struct fc_rport *rport;
5733 	unsigned long flags;
5734 
5735 	if (atomic_read(&fcport->state) == FCS_ONLINE)
5736 		return;
5737 
5738 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5739 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5740 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5741 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5742 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5743 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5744 	if (!rport) {
5745 		ql_log(ql_log_warn, vha, 0x2006,
5746 		    "Unable to allocate fc remote port.\n");
5747 		return;
5748 	}
5749 
5750 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5751 	*((fc_port_t **)rport->dd_data) = fcport;
5752 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5753 	fcport->dev_loss_tmo = rport->dev_loss_tmo;
5754 
5755 	rport->supported_classes = fcport->supported_classes;
5756 
5757 	rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
5758 	if (fcport->port_type == FCT_INITIATOR)
5759 		rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
5760 	if (fcport->port_type == FCT_TARGET)
5761 		rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
5762 	if (fcport->port_type & FCT_NVME_INITIATOR)
5763 		rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
5764 	if (fcport->port_type & FCT_NVME_TARGET)
5765 		rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
5766 	if (fcport->port_type & FCT_NVME_DISCOVERY)
5767 		rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
5768 
5769 	fc_remote_port_rolechg(rport, rport_ids.roles);
5770 
5771 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5772 	    "%s: %8phN. rport %ld:0:%d (%p) is %s mode\n",
5773 	    __func__, fcport->port_name, vha->host_no,
5774 	    rport->scsi_target_id, rport,
5775 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
5776 	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
5777 }
5778 
5779 /*
5780  * qla2x00_update_fcport
5781  *	Updates device on list.
5782  *
5783  * Input:
5784  *	ha = adapter block pointer.
5785  *	fcport = port structure pointer.
5786  *
5787  * Return:
5788  *	0  - Success
5789  *  BIT_0 - error
5790  *
5791  * Context:
5792  *	Kernel context.
5793  */
5794 void
5795 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5796 {
5797 	if (IS_SW_RESV_ADDR(fcport->d_id))
5798 		return;
5799 
5800 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5801 	    __func__, fcport->port_name);
5802 
5803 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5804 	fcport->login_retry = vha->hw->login_retry_count;
5805 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5806 	fcport->deleted = 0;
5807 	if (vha->hw->current_topology == ISP_CFG_NL)
5808 		fcport->logout_on_delete = 0;
5809 	else
5810 		fcport->logout_on_delete = 1;
5811 	fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
5812 
5813 	if (fcport->tgt_link_down_time < fcport->dev_loss_tmo) {
5814 		fcport->tgt_short_link_down_cnt++;
5815 		fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
5816 	}
5817 
5818 	switch (vha->hw->current_topology) {
5819 	case ISP_CFG_N:
5820 	case ISP_CFG_NL:
5821 		fcport->keep_nport_handle = 1;
5822 		break;
5823 	default:
5824 		break;
5825 	}
5826 
5827 	qla2x00_iidma_fcport(vha, fcport);
5828 
5829 	qla2x00_dfs_create_rport(vha, fcport);
5830 
5831 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5832 
5833 	switch (vha->host->active_mode) {
5834 	case MODE_INITIATOR:
5835 		qla2x00_reg_remote_port(vha, fcport);
5836 		break;
5837 	case MODE_TARGET:
5838 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5839 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5840 			qlt_fc_port_added(vha, fcport);
5841 		break;
5842 	case MODE_DUAL:
5843 		qla2x00_reg_remote_port(vha, fcport);
5844 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5845 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5846 			qlt_fc_port_added(vha, fcport);
5847 		break;
5848 	default:
5849 		break;
5850 	}
5851 
5852 	if (NVME_TARGET(vha->hw, fcport))
5853 		qla_nvme_register_remote(vha, fcport);
5854 
5855 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5856 
5857 	if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
5858 		if (fcport->id_changed) {
5859 			fcport->id_changed = 0;
5860 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5861 			    "%s %d %8phC post gfpnid fcp_cnt %d\n",
5862 			    __func__, __LINE__, fcport->port_name,
5863 			    vha->fcport_count);
5864 			qla24xx_post_gfpnid_work(vha, fcport);
5865 		} else {
5866 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5867 			    "%s %d %8phC post gpsc fcp_cnt %d\n",
5868 			    __func__, __LINE__, fcport->port_name,
5869 			    vha->fcport_count);
5870 			qla24xx_post_gpsc_work(vha, fcport);
5871 		}
5872 	}
5873 
5874 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5875 }
5876 
5877 void qla_register_fcport_fn(struct work_struct *work)
5878 {
5879 	fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
5880 	u32 rscn_gen = fcport->rscn_gen;
5881 	u16 data[2];
5882 
5883 	if (IS_SW_RESV_ADDR(fcport->d_id))
5884 		return;
5885 
5886 	qla2x00_update_fcport(fcport->vha, fcport);
5887 
5888 	ql_dbg(ql_dbg_disc, fcport->vha, 0x911e,
5889 	       "%s rscn gen %d/%d next DS %d\n", __func__,
5890 	       rscn_gen, fcport->rscn_gen, fcport->next_disc_state);
5891 
5892 	if (rscn_gen != fcport->rscn_gen) {
5893 		/* RSCN(s) came in while registration */
5894 		switch (fcport->next_disc_state) {
5895 		case DSC_DELETE_PEND:
5896 			qlt_schedule_sess_for_deletion(fcport);
5897 			break;
5898 		case DSC_ADISC:
5899 			data[0] = data[1] = 0;
5900 			qla2x00_post_async_adisc_work(fcport->vha, fcport,
5901 			    data);
5902 			break;
5903 		default:
5904 			break;
5905 		}
5906 	}
5907 }
5908 
5909 /*
5910  * qla2x00_configure_fabric
5911  *      Setup SNS devices with loop ID's.
5912  *
5913  * Input:
5914  *      ha = adapter block pointer.
5915  *
5916  * Returns:
5917  *      0 = success.
5918  *      BIT_0 = error
5919  */
5920 static int
5921 qla2x00_configure_fabric(scsi_qla_host_t *vha)
5922 {
5923 	int	rval;
5924 	fc_port_t	*fcport;
5925 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
5926 	uint16_t	loop_id;
5927 	LIST_HEAD(new_fcports);
5928 	struct qla_hw_data *ha = vha->hw;
5929 	int		discovery_gen;
5930 
5931 	/* If FL port exists, then SNS is present */
5932 	if (IS_FWI2_CAPABLE(ha))
5933 		loop_id = NPH_F_PORT;
5934 	else
5935 		loop_id = SNS_FL_PORT;
5936 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
5937 	if (rval != QLA_SUCCESS) {
5938 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
5939 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
5940 
5941 		vha->device_flags &= ~SWITCH_FOUND;
5942 		return (QLA_SUCCESS);
5943 	}
5944 	vha->device_flags |= SWITCH_FOUND;
5945 
5946 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_port_name, 0);
5947 	if (rval != QLA_SUCCESS)
5948 		ql_dbg(ql_dbg_disc, vha, 0x20ff,
5949 		    "Failed to get Fabric Port Name\n");
5950 
5951 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
5952 		rval = qla2x00_send_change_request(vha, 0x3, 0);
5953 		if (rval != QLA_SUCCESS)
5954 			ql_log(ql_log_warn, vha, 0x121,
5955 			    "Failed to enable receiving of RSCN requests: 0x%x.\n",
5956 			    rval);
5957 	}
5958 
5959 	do {
5960 		qla2x00_mgmt_svr_login(vha);
5961 
5962 		/* Ensure we are logged into the SNS. */
5963 		loop_id = NPH_SNS_LID(ha);
5964 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
5965 		    0xfc, mb, BIT_1|BIT_0);
5966 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5967 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
5968 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
5969 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
5970 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5971 			return rval;
5972 		}
5973 
5974 		/* FDMI support. */
5975 		if (ql2xfdmienable &&
5976 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
5977 			qla2x00_fdmi_register(vha);
5978 
5979 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
5980 			if (qla2x00_rft_id(vha)) {
5981 				/* EMPTY */
5982 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
5983 				    "Register FC-4 TYPE failed.\n");
5984 				if (test_bit(LOOP_RESYNC_NEEDED,
5985 				    &vha->dpc_flags))
5986 					break;
5987 			}
5988 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
5989 				/* EMPTY */
5990 				ql_dbg(ql_dbg_disc, vha, 0x209a,
5991 				    "Register FC-4 Features failed.\n");
5992 				if (test_bit(LOOP_RESYNC_NEEDED,
5993 				    &vha->dpc_flags))
5994 					break;
5995 			}
5996 			if (vha->flags.nvme_enabled) {
5997 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
5998 					ql_dbg(ql_dbg_disc, vha, 0x2049,
5999 					    "Register NVME FC Type Features failed.\n");
6000 				}
6001 			}
6002 			if (qla2x00_rnn_id(vha)) {
6003 				/* EMPTY */
6004 				ql_dbg(ql_dbg_disc, vha, 0x2104,
6005 				    "Register Node Name failed.\n");
6006 				if (test_bit(LOOP_RESYNC_NEEDED,
6007 				    &vha->dpc_flags))
6008 					break;
6009 			} else if (qla2x00_rsnn_nn(vha)) {
6010 				/* EMPTY */
6011 				ql_dbg(ql_dbg_disc, vha, 0x209b,
6012 				    "Register Symbolic Node Name failed.\n");
6013 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6014 					break;
6015 			}
6016 		}
6017 
6018 
6019 		/* Mark the time right before querying FW for connected ports.
6020 		 * This process is long, asynchronous and by the time it's done,
6021 		 * collected information might not be accurate anymore. E.g.
6022 		 * disconnected port might have re-connected and a brand new
6023 		 * session has been created. In this case session's generation
6024 		 * will be newer than discovery_gen. */
6025 		qlt_do_generation_tick(vha, &discovery_gen);
6026 
6027 		if (USE_ASYNC_SCAN(ha)) {
6028 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
6029 			    NULL);
6030 			if (rval)
6031 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6032 		} else  {
6033 			list_for_each_entry(fcport, &vha->vp_fcports, list)
6034 				fcport->scan_state = QLA_FCPORT_SCAN;
6035 
6036 			rval = qla2x00_find_all_fabric_devs(vha);
6037 		}
6038 		if (rval != QLA_SUCCESS)
6039 			break;
6040 	} while (0);
6041 
6042 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
6043 		qla_nvme_register_hba(vha);
6044 
6045 	if (rval)
6046 		ql_dbg(ql_dbg_disc, vha, 0x2068,
6047 		    "Configure fabric error exit rval=%d.\n", rval);
6048 
6049 	return (rval);
6050 }
6051 
6052 /*
6053  * qla2x00_find_all_fabric_devs
6054  *
6055  * Input:
6056  *	ha = adapter block pointer.
6057  *	dev = database device entry pointer.
6058  *
6059  * Returns:
6060  *	0 = success.
6061  *
6062  * Context:
6063  *	Kernel context.
6064  */
6065 static int
6066 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
6067 {
6068 	int		rval;
6069 	uint16_t	loop_id;
6070 	fc_port_t	*fcport, *new_fcport;
6071 	int		found;
6072 
6073 	sw_info_t	*swl;
6074 	int		swl_idx;
6075 	int		first_dev, last_dev;
6076 	port_id_t	wrap = {}, nxt_d_id;
6077 	struct qla_hw_data *ha = vha->hw;
6078 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
6079 	unsigned long flags;
6080 
6081 	rval = QLA_SUCCESS;
6082 
6083 	/* Try GID_PT to get device list, else GAN. */
6084 	if (!ha->swl)
6085 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
6086 		    GFP_KERNEL);
6087 	swl = ha->swl;
6088 	if (!swl) {
6089 		/*EMPTY*/
6090 		ql_dbg(ql_dbg_disc, vha, 0x209c,
6091 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
6092 	} else {
6093 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
6094 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
6095 			swl = NULL;
6096 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6097 				return rval;
6098 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
6099 			swl = NULL;
6100 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6101 				return rval;
6102 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
6103 			swl = NULL;
6104 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6105 				return rval;
6106 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
6107 			swl = NULL;
6108 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6109 				return rval;
6110 		}
6111 
6112 		/* If other queries succeeded probe for FC-4 type */
6113 		if (swl) {
6114 			qla2x00_gff_id(vha, swl);
6115 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6116 				return rval;
6117 		}
6118 	}
6119 	swl_idx = 0;
6120 
6121 	/* Allocate temporary fcport for any new fcports discovered. */
6122 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6123 	if (new_fcport == NULL) {
6124 		ql_log(ql_log_warn, vha, 0x209d,
6125 		    "Failed to allocate memory for fcport.\n");
6126 		return (QLA_MEMORY_ALLOC_FAILED);
6127 	}
6128 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
6129 	/* Set start port ID scan at adapter ID. */
6130 	first_dev = 1;
6131 	last_dev = 0;
6132 
6133 	/* Starting free loop ID. */
6134 	loop_id = ha->min_external_loopid;
6135 	for (; loop_id <= ha->max_loop_id; loop_id++) {
6136 		if (qla2x00_is_reserved_id(vha, loop_id))
6137 			continue;
6138 
6139 		if (ha->current_topology == ISP_CFG_FL &&
6140 		    (atomic_read(&vha->loop_down_timer) ||
6141 		     LOOP_TRANSITION(vha))) {
6142 			atomic_set(&vha->loop_down_timer, 0);
6143 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6144 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
6145 			break;
6146 		}
6147 
6148 		if (swl != NULL) {
6149 			if (last_dev) {
6150 				wrap.b24 = new_fcport->d_id.b24;
6151 			} else {
6152 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
6153 				memcpy(new_fcport->node_name,
6154 				    swl[swl_idx].node_name, WWN_SIZE);
6155 				memcpy(new_fcport->port_name,
6156 				    swl[swl_idx].port_name, WWN_SIZE);
6157 				memcpy(new_fcport->fabric_port_name,
6158 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
6159 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
6160 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
6161 
6162 				new_fcport->nvme_flag = 0;
6163 				if (vha->flags.nvme_enabled &&
6164 				    swl[swl_idx].fc4_type & FS_FC4TYPE_NVME) {
6165 					ql_log(ql_log_info, vha, 0x2131,
6166 					    "FOUND: NVME port %8phC as FC Type 28h\n",
6167 					    new_fcport->port_name);
6168 				}
6169 
6170 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
6171 					last_dev = 1;
6172 				}
6173 				swl_idx++;
6174 			}
6175 		} else {
6176 			/* Send GA_NXT to the switch */
6177 			rval = qla2x00_ga_nxt(vha, new_fcport);
6178 			if (rval != QLA_SUCCESS) {
6179 				ql_log(ql_log_warn, vha, 0x209e,
6180 				    "SNS scan failed -- assuming "
6181 				    "zero-entry result.\n");
6182 				rval = QLA_SUCCESS;
6183 				break;
6184 			}
6185 		}
6186 
6187 		/* If wrap on switch device list, exit. */
6188 		if (first_dev) {
6189 			wrap.b24 = new_fcport->d_id.b24;
6190 			first_dev = 0;
6191 		} else if (new_fcport->d_id.b24 == wrap.b24) {
6192 			ql_dbg(ql_dbg_disc, vha, 0x209f,
6193 			    "Device wrap (%02x%02x%02x).\n",
6194 			    new_fcport->d_id.b.domain,
6195 			    new_fcport->d_id.b.area,
6196 			    new_fcport->d_id.b.al_pa);
6197 			break;
6198 		}
6199 
6200 		/* Bypass if same physical adapter. */
6201 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
6202 			continue;
6203 
6204 		/* Bypass virtual ports of the same host. */
6205 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
6206 			continue;
6207 
6208 		/* Bypass if same domain and area of adapter. */
6209 		if (((new_fcport->d_id.b24 & 0xffff00) ==
6210 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
6211 			ISP_CFG_FL)
6212 			    continue;
6213 
6214 		/* Bypass reserved domain fields. */
6215 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
6216 			continue;
6217 
6218 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
6219 		if (ql2xgffidenable &&
6220 		    (!(new_fcport->fc4_type & FS_FC4TYPE_FCP) &&
6221 		    new_fcport->fc4_type != 0))
6222 			continue;
6223 
6224 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
6225 
6226 		/* Locate matching device in database. */
6227 		found = 0;
6228 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6229 			if (memcmp(new_fcport->port_name, fcport->port_name,
6230 			    WWN_SIZE))
6231 				continue;
6232 
6233 			fcport->scan_state = QLA_FCPORT_FOUND;
6234 
6235 			found++;
6236 
6237 			/* Update port state. */
6238 			memcpy(fcport->fabric_port_name,
6239 			    new_fcport->fabric_port_name, WWN_SIZE);
6240 			fcport->fp_speed = new_fcport->fp_speed;
6241 
6242 			/*
6243 			 * If address the same and state FCS_ONLINE
6244 			 * (or in target mode), nothing changed.
6245 			 */
6246 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
6247 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
6248 			     (vha->host->active_mode == MODE_TARGET))) {
6249 				break;
6250 			}
6251 
6252 			if (fcport->login_retry == 0)
6253 				fcport->login_retry =
6254 					vha->hw->login_retry_count;
6255 			/*
6256 			 * If device was not a fabric device before.
6257 			 */
6258 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
6259 				fcport->d_id.b24 = new_fcport->d_id.b24;
6260 				qla2x00_clear_loop_id(fcport);
6261 				fcport->flags |= (FCF_FABRIC_DEVICE |
6262 				    FCF_LOGIN_NEEDED);
6263 				break;
6264 			}
6265 
6266 			/*
6267 			 * Port ID changed or device was marked to be updated;
6268 			 * Log it out if still logged in and mark it for
6269 			 * relogin later.
6270 			 */
6271 			if (qla_tgt_mode_enabled(base_vha)) {
6272 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
6273 					 "port changed FC ID, %8phC"
6274 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
6275 					 fcport->port_name,
6276 					 fcport->d_id.b.domain,
6277 					 fcport->d_id.b.area,
6278 					 fcport->d_id.b.al_pa,
6279 					 fcport->loop_id,
6280 					 new_fcport->d_id.b.domain,
6281 					 new_fcport->d_id.b.area,
6282 					 new_fcport->d_id.b.al_pa);
6283 				fcport->d_id.b24 = new_fcport->d_id.b24;
6284 				break;
6285 			}
6286 
6287 			fcport->d_id.b24 = new_fcport->d_id.b24;
6288 			fcport->flags |= FCF_LOGIN_NEEDED;
6289 			break;
6290 		}
6291 
6292 		if (found && NVME_TARGET(vha->hw, fcport)) {
6293 			if (fcport->disc_state == DSC_DELETE_PEND) {
6294 				qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
6295 				vha->fcport_count--;
6296 				fcport->login_succ = 0;
6297 			}
6298 		}
6299 
6300 		if (found) {
6301 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6302 			continue;
6303 		}
6304 		/* If device was not in our fcports list, then add it. */
6305 		new_fcport->scan_state = QLA_FCPORT_FOUND;
6306 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
6307 
6308 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6309 
6310 
6311 		/* Allocate a new replacement fcport. */
6312 		nxt_d_id.b24 = new_fcport->d_id.b24;
6313 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6314 		if (new_fcport == NULL) {
6315 			ql_log(ql_log_warn, vha, 0xd032,
6316 			    "Memory allocation failed for fcport.\n");
6317 			return (QLA_MEMORY_ALLOC_FAILED);
6318 		}
6319 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
6320 		new_fcport->d_id.b24 = nxt_d_id.b24;
6321 	}
6322 
6323 	qla2x00_free_fcport(new_fcport);
6324 
6325 	/*
6326 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
6327 	 */
6328 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6329 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6330 			break;
6331 
6332 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
6333 			continue;
6334 
6335 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
6336 			if ((qla_dual_mode_enabled(vha) ||
6337 			    qla_ini_mode_enabled(vha)) &&
6338 			    atomic_read(&fcport->state) == FCS_ONLINE) {
6339 				qla2x00_mark_device_lost(vha, fcport,
6340 					ql2xplogiabsentdevice);
6341 				if (fcport->loop_id != FC_NO_LOOP_ID &&
6342 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
6343 				    fcport->port_type != FCT_INITIATOR &&
6344 				    fcport->port_type != FCT_BROADCAST) {
6345 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
6346 					    "%s %d %8phC post del sess\n",
6347 					    __func__, __LINE__,
6348 					    fcport->port_name);
6349 					qlt_schedule_sess_for_deletion(fcport);
6350 					continue;
6351 				}
6352 			}
6353 		}
6354 
6355 		if (fcport->scan_state == QLA_FCPORT_FOUND &&
6356 		    (fcport->flags & FCF_LOGIN_NEEDED) != 0)
6357 			qla24xx_fcport_handle_login(vha, fcport);
6358 	}
6359 	return (rval);
6360 }
6361 
6362 /* FW does not set aside Loop id for MGMT Server/FFFFFAh */
6363 int
6364 qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
6365 {
6366 	int loop_id = FC_NO_LOOP_ID;
6367 	int lid = NPH_MGMT_SERVER - vha->vp_idx;
6368 	unsigned long flags;
6369 	struct qla_hw_data *ha = vha->hw;
6370 
6371 	if (vha->vp_idx == 0) {
6372 		set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
6373 		return NPH_MGMT_SERVER;
6374 	}
6375 
6376 	/* pick id from high and work down to low */
6377 	spin_lock_irqsave(&ha->vport_slock, flags);
6378 	for (; lid > 0; lid--) {
6379 		if (!test_bit(lid, vha->hw->loop_id_map)) {
6380 			set_bit(lid, vha->hw->loop_id_map);
6381 			loop_id = lid;
6382 			break;
6383 		}
6384 	}
6385 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6386 
6387 	return loop_id;
6388 }
6389 
6390 /*
6391  * qla2x00_fabric_login
6392  *	Issue fabric login command.
6393  *
6394  * Input:
6395  *	ha = adapter block pointer.
6396  *	device = pointer to FC device type structure.
6397  *
6398  * Returns:
6399  *      0 - Login successfully
6400  *      1 - Login failed
6401  *      2 - Initiator device
6402  *      3 - Fatal error
6403  */
6404 int
6405 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
6406     uint16_t *next_loopid)
6407 {
6408 	int	rval;
6409 	int	retry;
6410 	uint16_t tmp_loopid;
6411 	uint16_t mb[MAILBOX_REGISTER_COUNT];
6412 	struct qla_hw_data *ha = vha->hw;
6413 
6414 	retry = 0;
6415 	tmp_loopid = 0;
6416 
6417 	for (;;) {
6418 		ql_dbg(ql_dbg_disc, vha, 0x2000,
6419 		    "Trying Fabric Login w/loop id 0x%04x for port "
6420 		    "%02x%02x%02x.\n",
6421 		    fcport->loop_id, fcport->d_id.b.domain,
6422 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6423 
6424 		/* Login fcport on switch. */
6425 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
6426 		    fcport->d_id.b.domain, fcport->d_id.b.area,
6427 		    fcport->d_id.b.al_pa, mb, BIT_0);
6428 		if (rval != QLA_SUCCESS) {
6429 			return rval;
6430 		}
6431 		if (mb[0] == MBS_PORT_ID_USED) {
6432 			/*
6433 			 * Device has another loop ID.  The firmware team
6434 			 * recommends the driver perform an implicit login with
6435 			 * the specified ID again. The ID we just used is save
6436 			 * here so we return with an ID that can be tried by
6437 			 * the next login.
6438 			 */
6439 			retry++;
6440 			tmp_loopid = fcport->loop_id;
6441 			fcport->loop_id = mb[1];
6442 
6443 			ql_dbg(ql_dbg_disc, vha, 0x2001,
6444 			    "Fabric Login: port in use - next loop "
6445 			    "id=0x%04x, port id= %02x%02x%02x.\n",
6446 			    fcport->loop_id, fcport->d_id.b.domain,
6447 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6448 
6449 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
6450 			/*
6451 			 * Login succeeded.
6452 			 */
6453 			if (retry) {
6454 				/* A retry occurred before. */
6455 				*next_loopid = tmp_loopid;
6456 			} else {
6457 				/*
6458 				 * No retry occurred before. Just increment the
6459 				 * ID value for next login.
6460 				 */
6461 				*next_loopid = (fcport->loop_id + 1);
6462 			}
6463 
6464 			if (mb[1] & BIT_0) {
6465 				fcport->port_type = FCT_INITIATOR;
6466 			} else {
6467 				fcport->port_type = FCT_TARGET;
6468 				if (mb[1] & BIT_1) {
6469 					fcport->flags |= FCF_FCP2_DEVICE;
6470 				}
6471 			}
6472 
6473 			if (mb[10] & BIT_0)
6474 				fcport->supported_classes |= FC_COS_CLASS2;
6475 			if (mb[10] & BIT_1)
6476 				fcport->supported_classes |= FC_COS_CLASS3;
6477 
6478 			if (IS_FWI2_CAPABLE(ha)) {
6479 				if (mb[10] & BIT_7)
6480 					fcport->flags |=
6481 					    FCF_CONF_COMP_SUPPORTED;
6482 			}
6483 
6484 			rval = QLA_SUCCESS;
6485 			break;
6486 		} else if (mb[0] == MBS_LOOP_ID_USED) {
6487 			/*
6488 			 * Loop ID already used, try next loop ID.
6489 			 */
6490 			fcport->loop_id++;
6491 			rval = qla2x00_find_new_loop_id(vha, fcport);
6492 			if (rval != QLA_SUCCESS) {
6493 				/* Ran out of loop IDs to use */
6494 				break;
6495 			}
6496 		} else if (mb[0] == MBS_COMMAND_ERROR) {
6497 			/*
6498 			 * Firmware possibly timed out during login. If NO
6499 			 * retries are left to do then the device is declared
6500 			 * dead.
6501 			 */
6502 			*next_loopid = fcport->loop_id;
6503 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6504 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6505 			    fcport->d_id.b.al_pa);
6506 			qla2x00_mark_device_lost(vha, fcport, 1);
6507 
6508 			rval = 1;
6509 			break;
6510 		} else {
6511 			/*
6512 			 * unrecoverable / not handled error
6513 			 */
6514 			ql_dbg(ql_dbg_disc, vha, 0x2002,
6515 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
6516 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
6517 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
6518 			    fcport->loop_id, jiffies);
6519 
6520 			*next_loopid = fcport->loop_id;
6521 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6522 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6523 			    fcport->d_id.b.al_pa);
6524 			qla2x00_clear_loop_id(fcport);
6525 			fcport->login_retry = 0;
6526 
6527 			rval = 3;
6528 			break;
6529 		}
6530 	}
6531 
6532 	return (rval);
6533 }
6534 
6535 /*
6536  * qla2x00_local_device_login
6537  *	Issue local device login command.
6538  *
6539  * Input:
6540  *	ha = adapter block pointer.
6541  *	loop_id = loop id of device to login to.
6542  *
6543  * Returns (Where's the #define!!!!):
6544  *      0 - Login successfully
6545  *      1 - Login failed
6546  *      3 - Fatal error
6547  */
6548 int
6549 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
6550 {
6551 	int		rval;
6552 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6553 
6554 	memset(mb, 0, sizeof(mb));
6555 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
6556 	if (rval == QLA_SUCCESS) {
6557 		/* Interrogate mailbox registers for any errors */
6558 		if (mb[0] == MBS_COMMAND_ERROR)
6559 			rval = 1;
6560 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
6561 			/* device not in PCB table */
6562 			rval = 3;
6563 	}
6564 
6565 	return (rval);
6566 }
6567 
6568 /*
6569  *  qla2x00_loop_resync
6570  *      Resync with fibre channel devices.
6571  *
6572  * Input:
6573  *      ha = adapter block pointer.
6574  *
6575  * Returns:
6576  *      0 = success
6577  */
6578 int
6579 qla2x00_loop_resync(scsi_qla_host_t *vha)
6580 {
6581 	int rval = QLA_SUCCESS;
6582 	uint32_t wait_time;
6583 
6584 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6585 	if (vha->flags.online) {
6586 		if (!(rval = qla2x00_fw_ready(vha))) {
6587 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
6588 			wait_time = 256;
6589 			do {
6590 				if (!IS_QLAFX00(vha->hw)) {
6591 					/*
6592 					 * Issue a marker after FW becomes
6593 					 * ready.
6594 					 */
6595 					qla2x00_marker(vha, vha->hw->base_qpair,
6596 					    0, 0, MK_SYNC_ALL);
6597 					vha->marker_needed = 0;
6598 				}
6599 
6600 				/* Remap devices on Loop. */
6601 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6602 
6603 				if (IS_QLAFX00(vha->hw))
6604 					qlafx00_configure_devices(vha);
6605 				else
6606 					qla2x00_configure_loop(vha);
6607 
6608 				wait_time--;
6609 			} while (!atomic_read(&vha->loop_down_timer) &&
6610 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6611 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
6612 				&vha->dpc_flags)));
6613 		}
6614 	}
6615 
6616 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6617 		return (QLA_FUNCTION_FAILED);
6618 
6619 	if (rval)
6620 		ql_dbg(ql_dbg_disc, vha, 0x206c,
6621 		    "%s *** FAILED ***.\n", __func__);
6622 
6623 	return (rval);
6624 }
6625 
6626 /*
6627 * qla2x00_perform_loop_resync
6628 * Description: This function will set the appropriate flags and call
6629 *              qla2x00_loop_resync. If successful loop will be resynced
6630 * Arguments : scsi_qla_host_t pointer
6631 * returm    : Success or Failure
6632 */
6633 
6634 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
6635 {
6636 	int32_t rval = 0;
6637 
6638 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
6639 		/*Configure the flags so that resync happens properly*/
6640 		atomic_set(&ha->loop_down_timer, 0);
6641 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
6642 			atomic_set(&ha->loop_state, LOOP_UP);
6643 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
6644 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
6645 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
6646 
6647 			rval = qla2x00_loop_resync(ha);
6648 		} else
6649 			atomic_set(&ha->loop_state, LOOP_DEAD);
6650 
6651 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
6652 	}
6653 
6654 	return rval;
6655 }
6656 
6657 void
6658 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
6659 {
6660 	fc_port_t *fcport;
6661 	struct scsi_qla_host *vha, *tvp;
6662 	struct qla_hw_data *ha = base_vha->hw;
6663 	unsigned long flags;
6664 
6665 	spin_lock_irqsave(&ha->vport_slock, flags);
6666 	/* Go with deferred removal of rport references. */
6667 	list_for_each_entry_safe(vha, tvp, &base_vha->hw->vp_list, list) {
6668 		atomic_inc(&vha->vref_count);
6669 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6670 			if (fcport->drport &&
6671 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
6672 				spin_unlock_irqrestore(&ha->vport_slock, flags);
6673 				qla2x00_rport_del(fcport);
6674 
6675 				spin_lock_irqsave(&ha->vport_slock, flags);
6676 			}
6677 		}
6678 		atomic_dec(&vha->vref_count);
6679 		wake_up(&vha->vref_waitq);
6680 	}
6681 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6682 }
6683 
6684 /* Assumes idc_lock always held on entry */
6685 void
6686 qla83xx_reset_ownership(scsi_qla_host_t *vha)
6687 {
6688 	struct qla_hw_data *ha = vha->hw;
6689 	uint32_t drv_presence, drv_presence_mask;
6690 	uint32_t dev_part_info1, dev_part_info2, class_type;
6691 	uint32_t class_type_mask = 0x3;
6692 	uint16_t fcoe_other_function = 0xffff, i;
6693 
6694 	if (IS_QLA8044(ha)) {
6695 		drv_presence = qla8044_rd_direct(vha,
6696 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
6697 		dev_part_info1 = qla8044_rd_direct(vha,
6698 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
6699 		dev_part_info2 = qla8044_rd_direct(vha,
6700 		    QLA8044_CRB_DEV_PART_INFO2);
6701 	} else {
6702 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6703 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
6704 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
6705 	}
6706 	for (i = 0; i < 8; i++) {
6707 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
6708 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6709 		    (i != ha->portnum)) {
6710 			fcoe_other_function = i;
6711 			break;
6712 		}
6713 	}
6714 	if (fcoe_other_function == 0xffff) {
6715 		for (i = 0; i < 8; i++) {
6716 			class_type = ((dev_part_info2 >> (i * 4)) &
6717 			    class_type_mask);
6718 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6719 			    ((i + 8) != ha->portnum)) {
6720 				fcoe_other_function = i + 8;
6721 				break;
6722 			}
6723 		}
6724 	}
6725 	/*
6726 	 * Prepare drv-presence mask based on fcoe functions present.
6727 	 * However consider only valid physical fcoe function numbers (0-15).
6728 	 */
6729 	drv_presence_mask = ~((1 << (ha->portnum)) |
6730 			((fcoe_other_function == 0xffff) ?
6731 			 0 : (1 << (fcoe_other_function))));
6732 
6733 	/* We are the reset owner iff:
6734 	 *    - No other protocol drivers present.
6735 	 *    - This is the lowest among fcoe functions. */
6736 	if (!(drv_presence & drv_presence_mask) &&
6737 			(ha->portnum < fcoe_other_function)) {
6738 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6739 		    "This host is Reset owner.\n");
6740 		ha->flags.nic_core_reset_owner = 1;
6741 	}
6742 }
6743 
6744 static int
6745 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6746 {
6747 	int rval = QLA_SUCCESS;
6748 	struct qla_hw_data *ha = vha->hw;
6749 	uint32_t drv_ack;
6750 
6751 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6752 	if (rval == QLA_SUCCESS) {
6753 		drv_ack |= (1 << ha->portnum);
6754 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6755 	}
6756 
6757 	return rval;
6758 }
6759 
6760 static int
6761 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6762 {
6763 	int rval = QLA_SUCCESS;
6764 	struct qla_hw_data *ha = vha->hw;
6765 	uint32_t drv_ack;
6766 
6767 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6768 	if (rval == QLA_SUCCESS) {
6769 		drv_ack &= ~(1 << ha->portnum);
6770 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6771 	}
6772 
6773 	return rval;
6774 }
6775 
6776 static const char *
6777 qla83xx_dev_state_to_string(uint32_t dev_state)
6778 {
6779 	switch (dev_state) {
6780 	case QLA8XXX_DEV_COLD:
6781 		return "COLD/RE-INIT";
6782 	case QLA8XXX_DEV_INITIALIZING:
6783 		return "INITIALIZING";
6784 	case QLA8XXX_DEV_READY:
6785 		return "READY";
6786 	case QLA8XXX_DEV_NEED_RESET:
6787 		return "NEED RESET";
6788 	case QLA8XXX_DEV_NEED_QUIESCENT:
6789 		return "NEED QUIESCENT";
6790 	case QLA8XXX_DEV_FAILED:
6791 		return "FAILED";
6792 	case QLA8XXX_DEV_QUIESCENT:
6793 		return "QUIESCENT";
6794 	default:
6795 		return "Unknown";
6796 	}
6797 }
6798 
6799 /* Assumes idc-lock always held on entry */
6800 void
6801 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6802 {
6803 	struct qla_hw_data *ha = vha->hw;
6804 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6805 
6806 	switch (audit_type) {
6807 	case IDC_AUDIT_TIMESTAMP:
6808 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6809 		idc_audit_reg = (ha->portnum) |
6810 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6811 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6812 		break;
6813 
6814 	case IDC_AUDIT_COMPLETION:
6815 		duration_secs = ((jiffies_to_msecs(jiffies) -
6816 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6817 		idc_audit_reg = (ha->portnum) |
6818 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6819 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6820 		break;
6821 
6822 	default:
6823 		ql_log(ql_log_warn, vha, 0xb078,
6824 		    "Invalid audit type specified.\n");
6825 		break;
6826 	}
6827 }
6828 
6829 /* Assumes idc_lock always held on entry */
6830 static int
6831 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6832 {
6833 	struct qla_hw_data *ha = vha->hw;
6834 	uint32_t  idc_control, dev_state;
6835 
6836 	__qla83xx_get_idc_control(vha, &idc_control);
6837 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6838 		ql_log(ql_log_info, vha, 0xb080,
6839 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6840 		    idc_control);
6841 		return QLA_FUNCTION_FAILED;
6842 	}
6843 
6844 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6845 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6846 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6847 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6848 		    QLA8XXX_DEV_NEED_RESET);
6849 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6850 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6851 	} else {
6852 		const char *state = qla83xx_dev_state_to_string(dev_state);
6853 
6854 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
6855 
6856 		/* SV: XXX: Is timeout required here? */
6857 		/* Wait for IDC state change READY -> NEED_RESET */
6858 		while (dev_state == QLA8XXX_DEV_READY) {
6859 			qla83xx_idc_unlock(vha, 0);
6860 			msleep(200);
6861 			qla83xx_idc_lock(vha, 0);
6862 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6863 		}
6864 	}
6865 
6866 	/* Send IDC ack by writing to drv-ack register */
6867 	__qla83xx_set_drv_ack(vha);
6868 
6869 	return QLA_SUCCESS;
6870 }
6871 
6872 int
6873 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6874 {
6875 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6876 }
6877 
6878 int
6879 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6880 {
6881 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6882 }
6883 
6884 static int
6885 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6886 {
6887 	uint32_t drv_presence = 0;
6888 	struct qla_hw_data *ha = vha->hw;
6889 
6890 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6891 	if (drv_presence & (1 << ha->portnum))
6892 		return QLA_SUCCESS;
6893 	else
6894 		return QLA_TEST_FAILED;
6895 }
6896 
6897 int
6898 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6899 {
6900 	int rval = QLA_SUCCESS;
6901 	struct qla_hw_data *ha = vha->hw;
6902 
6903 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6904 	    "Entered  %s().\n", __func__);
6905 
6906 	if (vha->device_flags & DFLG_DEV_FAILED) {
6907 		ql_log(ql_log_warn, vha, 0xb059,
6908 		    "Device in unrecoverable FAILED state.\n");
6909 		return QLA_FUNCTION_FAILED;
6910 	}
6911 
6912 	qla83xx_idc_lock(vha, 0);
6913 
6914 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6915 		ql_log(ql_log_warn, vha, 0xb05a,
6916 		    "Function=0x%x has been removed from IDC participation.\n",
6917 		    ha->portnum);
6918 		rval = QLA_FUNCTION_FAILED;
6919 		goto exit;
6920 	}
6921 
6922 	qla83xx_reset_ownership(vha);
6923 
6924 	rval = qla83xx_initiating_reset(vha);
6925 
6926 	/*
6927 	 * Perform reset if we are the reset-owner,
6928 	 * else wait till IDC state changes to READY/FAILED.
6929 	 */
6930 	if (rval == QLA_SUCCESS) {
6931 		rval = qla83xx_idc_state_handler(vha);
6932 
6933 		if (rval == QLA_SUCCESS)
6934 			ha->flags.nic_core_hung = 0;
6935 		__qla83xx_clear_drv_ack(vha);
6936 	}
6937 
6938 exit:
6939 	qla83xx_idc_unlock(vha, 0);
6940 
6941 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6942 
6943 	return rval;
6944 }
6945 
6946 int
6947 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6948 {
6949 	struct qla_hw_data *ha = vha->hw;
6950 	int rval = QLA_FUNCTION_FAILED;
6951 
6952 	if (!IS_MCTP_CAPABLE(ha)) {
6953 		/* This message can be removed from the final version */
6954 		ql_log(ql_log_info, vha, 0x506d,
6955 		    "This board is not MCTP capable\n");
6956 		return rval;
6957 	}
6958 
6959 	if (!ha->mctp_dump) {
6960 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6961 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6962 
6963 		if (!ha->mctp_dump) {
6964 			ql_log(ql_log_warn, vha, 0x506e,
6965 			    "Failed to allocate memory for mctp dump\n");
6966 			return rval;
6967 		}
6968 	}
6969 
6970 #define MCTP_DUMP_STR_ADDR	0x00000000
6971 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
6972 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
6973 	if (rval != QLA_SUCCESS) {
6974 		ql_log(ql_log_warn, vha, 0x506f,
6975 		    "Failed to capture mctp dump\n");
6976 	} else {
6977 		ql_log(ql_log_info, vha, 0x5070,
6978 		    "Mctp dump capture for host (%ld/%p).\n",
6979 		    vha->host_no, ha->mctp_dump);
6980 		ha->mctp_dumped = 1;
6981 	}
6982 
6983 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
6984 		ha->flags.nic_core_reset_hdlr_active = 1;
6985 		rval = qla83xx_restart_nic_firmware(vha);
6986 		if (rval)
6987 			/* NIC Core reset failed. */
6988 			ql_log(ql_log_warn, vha, 0x5071,
6989 			    "Failed to restart nic firmware\n");
6990 		else
6991 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
6992 			    "Restarted NIC firmware successfully.\n");
6993 		ha->flags.nic_core_reset_hdlr_active = 0;
6994 	}
6995 
6996 	return rval;
6997 
6998 }
6999 
7000 /*
7001 * qla2x00_quiesce_io
7002 * Description: This function will block the new I/Os
7003 *              Its not aborting any I/Os as context
7004 *              is not destroyed during quiescence
7005 * Arguments: scsi_qla_host_t
7006 * return   : void
7007 */
7008 void
7009 qla2x00_quiesce_io(scsi_qla_host_t *vha)
7010 {
7011 	struct qla_hw_data *ha = vha->hw;
7012 	struct scsi_qla_host *vp, *tvp;
7013 	unsigned long flags;
7014 
7015 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
7016 	    "Quiescing I/O - ha=%p.\n", ha);
7017 
7018 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
7019 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
7020 		atomic_set(&vha->loop_state, LOOP_DOWN);
7021 		qla2x00_mark_all_devices_lost(vha);
7022 
7023 		spin_lock_irqsave(&ha->vport_slock, flags);
7024 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7025 			atomic_inc(&vp->vref_count);
7026 			spin_unlock_irqrestore(&ha->vport_slock, flags);
7027 
7028 			qla2x00_mark_all_devices_lost(vp);
7029 
7030 			spin_lock_irqsave(&ha->vport_slock, flags);
7031 			atomic_dec(&vp->vref_count);
7032 		}
7033 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7034 	} else {
7035 		if (!atomic_read(&vha->loop_down_timer))
7036 			atomic_set(&vha->loop_down_timer,
7037 					LOOP_DOWN_TIME);
7038 	}
7039 	/* Wait for pending cmds to complete */
7040 	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
7041 		     != QLA_SUCCESS);
7042 }
7043 
7044 void
7045 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
7046 {
7047 	struct qla_hw_data *ha = vha->hw;
7048 	struct scsi_qla_host *vp, *tvp;
7049 	unsigned long flags;
7050 	fc_port_t *fcport;
7051 	u16 i;
7052 
7053 	/* For ISP82XX, driver waits for completion of the commands.
7054 	 * online flag should be set.
7055 	 */
7056 	if (!(IS_P3P_TYPE(ha)))
7057 		vha->flags.online = 0;
7058 	ha->flags.chip_reset_done = 0;
7059 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
7060 	vha->qla_stats.total_isp_aborts++;
7061 
7062 	ql_log(ql_log_info, vha, 0x00af,
7063 	    "Performing ISP error recovery - ha=%p.\n", ha);
7064 
7065 	ha->flags.purge_mbox = 1;
7066 	/* For ISP82XX, reset_chip is just disabling interrupts.
7067 	 * Driver waits for the completion of the commands.
7068 	 * the interrupts need to be enabled.
7069 	 */
7070 	if (!(IS_P3P_TYPE(ha)))
7071 		ha->isp_ops->reset_chip(vha);
7072 
7073 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
7074 	SAVE_TOPO(ha);
7075 	ha->flags.rida_fmt2 = 0;
7076 	ha->flags.n2n_ae = 0;
7077 	ha->flags.lip_ae = 0;
7078 	ha->current_topology = 0;
7079 	QLA_FW_STOPPED(ha);
7080 	ha->flags.fw_init_done = 0;
7081 	ha->chip_reset++;
7082 	ha->base_qpair->chip_reset = ha->chip_reset;
7083 	ha->base_qpair->cmd_cnt = ha->base_qpair->cmd_completion_cnt = 0;
7084 	ha->base_qpair->prev_completion_cnt = 0;
7085 	for (i = 0; i < ha->max_qpairs; i++) {
7086 		if (ha->queue_pair_map[i]) {
7087 			ha->queue_pair_map[i]->chip_reset =
7088 				ha->base_qpair->chip_reset;
7089 			ha->queue_pair_map[i]->cmd_cnt =
7090 			    ha->queue_pair_map[i]->cmd_completion_cnt = 0;
7091 			ha->base_qpair->prev_completion_cnt = 0;
7092 		}
7093 	}
7094 
7095 	/* purge MBox commands */
7096 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
7097 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
7098 		complete(&ha->mbx_intr_comp);
7099 	}
7100 
7101 	i = 0;
7102 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
7103 	    atomic_read(&ha->num_pend_mbx_stage2) ||
7104 	    atomic_read(&ha->num_pend_mbx_stage1)) {
7105 		msleep(20);
7106 		i++;
7107 		if (i > 50)
7108 			break;
7109 	}
7110 	ha->flags.purge_mbox = 0;
7111 
7112 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
7113 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
7114 		atomic_set(&vha->loop_state, LOOP_DOWN);
7115 		qla2x00_mark_all_devices_lost(vha);
7116 
7117 		spin_lock_irqsave(&ha->vport_slock, flags);
7118 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7119 			atomic_inc(&vp->vref_count);
7120 			spin_unlock_irqrestore(&ha->vport_slock, flags);
7121 
7122 			qla2x00_mark_all_devices_lost(vp);
7123 
7124 			spin_lock_irqsave(&ha->vport_slock, flags);
7125 			atomic_dec(&vp->vref_count);
7126 		}
7127 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7128 	} else {
7129 		if (!atomic_read(&vha->loop_down_timer))
7130 			atomic_set(&vha->loop_down_timer,
7131 			    LOOP_DOWN_TIME);
7132 	}
7133 
7134 	/* Clear all async request states across all VPs. */
7135 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
7136 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7137 		fcport->scan_state = 0;
7138 	}
7139 	spin_lock_irqsave(&ha->vport_slock, flags);
7140 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7141 		atomic_inc(&vp->vref_count);
7142 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7143 
7144 		list_for_each_entry(fcport, &vp->vp_fcports, list)
7145 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7146 
7147 		spin_lock_irqsave(&ha->vport_slock, flags);
7148 		atomic_dec(&vp->vref_count);
7149 	}
7150 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7151 
7152 	/* Make sure for ISP 82XX IO DMA is complete */
7153 	if (IS_P3P_TYPE(ha)) {
7154 		qla82xx_chip_reset_cleanup(vha);
7155 		ql_log(ql_log_info, vha, 0x00b4,
7156 		       "Done chip reset cleanup.\n");
7157 
7158 		/* Done waiting for pending commands. Reset online flag */
7159 		vha->flags.online = 0;
7160 	}
7161 
7162 	/* Requeue all commands in outstanding command list. */
7163 	qla2x00_abort_all_cmds(vha, DID_RESET << 16);
7164 	/* memory barrier */
7165 	wmb();
7166 }
7167 
7168 /*
7169 *  qla2x00_abort_isp
7170 *      Resets ISP and aborts all outstanding commands.
7171 *
7172 * Input:
7173 *      ha           = adapter block pointer.
7174 *
7175 * Returns:
7176 *      0 = success
7177 */
7178 int
7179 qla2x00_abort_isp(scsi_qla_host_t *vha)
7180 {
7181 	int rval;
7182 	uint8_t        status = 0;
7183 	struct qla_hw_data *ha = vha->hw;
7184 	struct scsi_qla_host *vp, *tvp;
7185 	struct req_que *req = ha->req_q_map[0];
7186 	unsigned long flags;
7187 
7188 	if (vha->flags.online) {
7189 		qla2x00_abort_isp_cleanup(vha);
7190 
7191 		if (vha->hw->flags.port_isolated)
7192 			return status;
7193 
7194 		if (qla2x00_isp_reg_stat(ha)) {
7195 			ql_log(ql_log_info, vha, 0x803f,
7196 			       "ISP Abort - ISP reg disconnect, exiting.\n");
7197 			return status;
7198 		}
7199 
7200 		if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
7201 			ha->flags.chip_reset_done = 1;
7202 			vha->flags.online = 1;
7203 			status = 0;
7204 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7205 			return status;
7206 		}
7207 
7208 		if (IS_QLA8031(ha)) {
7209 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
7210 			    "Clearing fcoe driver presence.\n");
7211 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
7212 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
7213 				    "Error while clearing DRV-Presence.\n");
7214 		}
7215 
7216 		if (unlikely(pci_channel_offline(ha->pdev) &&
7217 		    ha->flags.pci_channel_io_perm_failure)) {
7218 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7219 			status = 0;
7220 			return status;
7221 		}
7222 
7223 		switch (vha->qlini_mode) {
7224 		case QLA2XXX_INI_MODE_DISABLED:
7225 			if (!qla_tgt_mode_enabled(vha))
7226 				return 0;
7227 			break;
7228 		case QLA2XXX_INI_MODE_DUAL:
7229 			if (!qla_dual_mode_enabled(vha) &&
7230 			    !qla_ini_mode_enabled(vha))
7231 				return 0;
7232 			break;
7233 		case QLA2XXX_INI_MODE_ENABLED:
7234 		default:
7235 			break;
7236 		}
7237 
7238 		ha->isp_ops->get_flash_version(vha, req->ring);
7239 
7240 		if (qla2x00_isp_reg_stat(ha)) {
7241 			ql_log(ql_log_info, vha, 0x803f,
7242 			       "ISP Abort - ISP reg disconnect pre nvram config, exiting.\n");
7243 			return status;
7244 		}
7245 		ha->isp_ops->nvram_config(vha);
7246 
7247 		if (qla2x00_isp_reg_stat(ha)) {
7248 			ql_log(ql_log_info, vha, 0x803f,
7249 			       "ISP Abort - ISP reg disconnect post nvmram config, exiting.\n");
7250 			return status;
7251 		}
7252 		if (!qla2x00_restart_isp(vha)) {
7253 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7254 
7255 			if (!atomic_read(&vha->loop_down_timer)) {
7256 				/*
7257 				 * Issue marker command only when we are going
7258 				 * to start the I/O .
7259 				 */
7260 				vha->marker_needed = 1;
7261 			}
7262 
7263 			vha->flags.online = 1;
7264 
7265 			ha->isp_ops->enable_intrs(ha);
7266 
7267 			ha->isp_abort_cnt = 0;
7268 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7269 
7270 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
7271 				qla2x00_get_fw_version(vha);
7272 			if (ha->fce) {
7273 				ha->flags.fce_enabled = 1;
7274 				memset(ha->fce, 0,
7275 				    fce_calc_size(ha->fce_bufs));
7276 				rval = qla2x00_enable_fce_trace(vha,
7277 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
7278 				    &ha->fce_bufs);
7279 				if (rval) {
7280 					ql_log(ql_log_warn, vha, 0x8033,
7281 					    "Unable to reinitialize FCE "
7282 					    "(%d).\n", rval);
7283 					ha->flags.fce_enabled = 0;
7284 				}
7285 			}
7286 
7287 			if (ha->eft) {
7288 				memset(ha->eft, 0, EFT_SIZE);
7289 				rval = qla2x00_enable_eft_trace(vha,
7290 				    ha->eft_dma, EFT_NUM_BUFFERS);
7291 				if (rval) {
7292 					ql_log(ql_log_warn, vha, 0x8034,
7293 					    "Unable to reinitialize EFT "
7294 					    "(%d).\n", rval);
7295 				}
7296 			}
7297 		} else {	/* failed the ISP abort */
7298 			vha->flags.online = 1;
7299 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
7300 				if (ha->isp_abort_cnt == 0) {
7301 					ql_log(ql_log_fatal, vha, 0x8035,
7302 					    "ISP error recover failed - "
7303 					    "board disabled.\n");
7304 					/*
7305 					 * The next call disables the board
7306 					 * completely.
7307 					 */
7308 					qla2x00_abort_isp_cleanup(vha);
7309 					vha->flags.online = 0;
7310 					clear_bit(ISP_ABORT_RETRY,
7311 					    &vha->dpc_flags);
7312 					status = 0;
7313 				} else { /* schedule another ISP abort */
7314 					ha->isp_abort_cnt--;
7315 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
7316 					    "ISP abort - retry remaining %d.\n",
7317 					    ha->isp_abort_cnt);
7318 					status = 1;
7319 				}
7320 			} else {
7321 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
7322 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
7323 				    "ISP error recovery - retrying (%d) "
7324 				    "more times.\n", ha->isp_abort_cnt);
7325 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7326 				status = 1;
7327 			}
7328 		}
7329 
7330 	}
7331 
7332 	if (vha->hw->flags.port_isolated) {
7333 		qla2x00_abort_isp_cleanup(vha);
7334 		return status;
7335 	}
7336 
7337 	if (!status) {
7338 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
7339 		qla2x00_configure_hba(vha);
7340 		spin_lock_irqsave(&ha->vport_slock, flags);
7341 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7342 			if (vp->vp_idx) {
7343 				atomic_inc(&vp->vref_count);
7344 				spin_unlock_irqrestore(&ha->vport_slock, flags);
7345 
7346 				qla2x00_vp_abort_isp(vp);
7347 
7348 				spin_lock_irqsave(&ha->vport_slock, flags);
7349 				atomic_dec(&vp->vref_count);
7350 			}
7351 		}
7352 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7353 
7354 		if (IS_QLA8031(ha)) {
7355 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
7356 			    "Setting back fcoe driver presence.\n");
7357 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
7358 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
7359 				    "Error while setting DRV-Presence.\n");
7360 		}
7361 	} else {
7362 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
7363 		       __func__);
7364 	}
7365 
7366 	return(status);
7367 }
7368 
7369 /*
7370 *  qla2x00_restart_isp
7371 *      restarts the ISP after a reset
7372 *
7373 * Input:
7374 *      ha = adapter block pointer.
7375 *
7376 * Returns:
7377 *      0 = success
7378 */
7379 static int
7380 qla2x00_restart_isp(scsi_qla_host_t *vha)
7381 {
7382 	int status;
7383 	struct qla_hw_data *ha = vha->hw;
7384 
7385 	/* If firmware needs to be loaded */
7386 	if (qla2x00_isp_firmware(vha)) {
7387 		vha->flags.online = 0;
7388 		status = ha->isp_ops->chip_diag(vha);
7389 		if (status)
7390 			return status;
7391 		status = qla2x00_setup_chip(vha);
7392 		if (status)
7393 			return status;
7394 	}
7395 
7396 	status = qla2x00_init_rings(vha);
7397 	if (status)
7398 		return status;
7399 
7400 	clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7401 	ha->flags.chip_reset_done = 1;
7402 
7403 	/* Initialize the queues in use */
7404 	qla25xx_init_queues(ha);
7405 
7406 	status = qla2x00_fw_ready(vha);
7407 	if (status) {
7408 		/* if no cable then assume it's good */
7409 		return vha->device_flags & DFLG_NO_CABLE ? 0 : status;
7410 	}
7411 
7412 	/* Issue a marker after FW becomes ready. */
7413 	qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
7414 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
7415 
7416 	return 0;
7417 }
7418 
7419 static int
7420 qla25xx_init_queues(struct qla_hw_data *ha)
7421 {
7422 	struct rsp_que *rsp = NULL;
7423 	struct req_que *req = NULL;
7424 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7425 	int ret = -1;
7426 	int i;
7427 
7428 	for (i = 1; i < ha->max_rsp_queues; i++) {
7429 		rsp = ha->rsp_q_map[i];
7430 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
7431 			rsp->options &= ~BIT_0;
7432 			ret = qla25xx_init_rsp_que(base_vha, rsp);
7433 			if (ret != QLA_SUCCESS)
7434 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
7435 				    "%s Rsp que: %d init failed.\n",
7436 				    __func__, rsp->id);
7437 			else
7438 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
7439 				    "%s Rsp que: %d inited.\n",
7440 				    __func__, rsp->id);
7441 		}
7442 	}
7443 	for (i = 1; i < ha->max_req_queues; i++) {
7444 		req = ha->req_q_map[i];
7445 		if (req && test_bit(i, ha->req_qid_map)) {
7446 			/* Clear outstanding commands array. */
7447 			req->options &= ~BIT_0;
7448 			ret = qla25xx_init_req_que(base_vha, req);
7449 			if (ret != QLA_SUCCESS)
7450 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
7451 				    "%s Req que: %d init failed.\n",
7452 				    __func__, req->id);
7453 			else
7454 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
7455 				    "%s Req que: %d inited.\n",
7456 				    __func__, req->id);
7457 		}
7458 	}
7459 	return ret;
7460 }
7461 
7462 /*
7463 * qla2x00_reset_adapter
7464 *      Reset adapter.
7465 *
7466 * Input:
7467 *      ha = adapter block pointer.
7468 */
7469 int
7470 qla2x00_reset_adapter(scsi_qla_host_t *vha)
7471 {
7472 	unsigned long flags = 0;
7473 	struct qla_hw_data *ha = vha->hw;
7474 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7475 
7476 	vha->flags.online = 0;
7477 	ha->isp_ops->disable_intrs(ha);
7478 
7479 	spin_lock_irqsave(&ha->hardware_lock, flags);
7480 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
7481 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7482 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
7483 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7484 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7485 
7486 	return QLA_SUCCESS;
7487 }
7488 
7489 int
7490 qla24xx_reset_adapter(scsi_qla_host_t *vha)
7491 {
7492 	unsigned long flags = 0;
7493 	struct qla_hw_data *ha = vha->hw;
7494 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
7495 
7496 	if (IS_P3P_TYPE(ha))
7497 		return QLA_SUCCESS;
7498 
7499 	vha->flags.online = 0;
7500 	ha->isp_ops->disable_intrs(ha);
7501 
7502 	spin_lock_irqsave(&ha->hardware_lock, flags);
7503 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
7504 	rd_reg_dword(&reg->hccr);
7505 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
7506 	rd_reg_dword(&reg->hccr);
7507 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7508 
7509 	if (IS_NOPOLLING_TYPE(ha))
7510 		ha->isp_ops->enable_intrs(ha);
7511 
7512 	return QLA_SUCCESS;
7513 }
7514 
7515 /* On sparc systems, obtain port and node WWN from firmware
7516  * properties.
7517  */
7518 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
7519 	struct nvram_24xx *nv)
7520 {
7521 #ifdef CONFIG_SPARC
7522 	struct qla_hw_data *ha = vha->hw;
7523 	struct pci_dev *pdev = ha->pdev;
7524 	struct device_node *dp = pci_device_to_OF_node(pdev);
7525 	const u8 *val;
7526 	int len;
7527 
7528 	val = of_get_property(dp, "port-wwn", &len);
7529 	if (val && len >= WWN_SIZE)
7530 		memcpy(nv->port_name, val, WWN_SIZE);
7531 
7532 	val = of_get_property(dp, "node-wwn", &len);
7533 	if (val && len >= WWN_SIZE)
7534 		memcpy(nv->node_name, val, WWN_SIZE);
7535 #endif
7536 }
7537 
7538 int
7539 qla24xx_nvram_config(scsi_qla_host_t *vha)
7540 {
7541 	int   rval;
7542 	struct init_cb_24xx *icb;
7543 	struct nvram_24xx *nv;
7544 	__le32 *dptr;
7545 	uint8_t  *dptr1, *dptr2;
7546 	uint32_t chksum;
7547 	uint16_t cnt;
7548 	struct qla_hw_data *ha = vha->hw;
7549 
7550 	rval = QLA_SUCCESS;
7551 	icb = (struct init_cb_24xx *)ha->init_cb;
7552 	nv = ha->nvram;
7553 
7554 	/* Determine NVRAM starting address. */
7555 	if (ha->port_no == 0) {
7556 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
7557 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
7558 	} else {
7559 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
7560 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
7561 	}
7562 
7563 	ha->nvram_size = sizeof(*nv);
7564 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7565 
7566 	/* Get VPD data into cache */
7567 	ha->vpd = ha->nvram + VPD_OFFSET;
7568 	ha->isp_ops->read_nvram(vha, ha->vpd,
7569 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
7570 
7571 	/* Get NVRAM data into cache and calculate checksum. */
7572 	dptr = (__force __le32 *)nv;
7573 	ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
7574 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7575 		chksum += le32_to_cpu(*dptr);
7576 
7577 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
7578 	    "Contents of NVRAM\n");
7579 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
7580 	    nv, ha->nvram_size);
7581 
7582 	/* Bad NVRAM data, set defaults parameters. */
7583 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
7584 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
7585 		/* Reset NVRAM data. */
7586 		ql_log(ql_log_warn, vha, 0x006b,
7587 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
7588 		    chksum, nv->id, nv->nvram_version);
7589 		ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
7590 		ql_log(ql_log_warn, vha, 0x006c,
7591 		    "Falling back to functioning (yet invalid -- WWPN) "
7592 		    "defaults.\n");
7593 
7594 		/*
7595 		 * Set default initialization control block.
7596 		 */
7597 		memset(nv, 0, ha->nvram_size);
7598 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7599 		nv->version = cpu_to_le16(ICB_VERSION);
7600 		nv->frame_payload_size = cpu_to_le16(2048);
7601 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7602 		nv->exchange_count = cpu_to_le16(0);
7603 		nv->hard_address = cpu_to_le16(124);
7604 		nv->port_name[0] = 0x21;
7605 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7606 		nv->port_name[2] = 0x00;
7607 		nv->port_name[3] = 0xe0;
7608 		nv->port_name[4] = 0x8b;
7609 		nv->port_name[5] = 0x1c;
7610 		nv->port_name[6] = 0x55;
7611 		nv->port_name[7] = 0x86;
7612 		nv->node_name[0] = 0x20;
7613 		nv->node_name[1] = 0x00;
7614 		nv->node_name[2] = 0x00;
7615 		nv->node_name[3] = 0xe0;
7616 		nv->node_name[4] = 0x8b;
7617 		nv->node_name[5] = 0x1c;
7618 		nv->node_name[6] = 0x55;
7619 		nv->node_name[7] = 0x86;
7620 		qla24xx_nvram_wwn_from_ofw(vha, nv);
7621 		nv->login_retry_count = cpu_to_le16(8);
7622 		nv->interrupt_delay_timer = cpu_to_le16(0);
7623 		nv->login_timeout = cpu_to_le16(0);
7624 		nv->firmware_options_1 =
7625 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7626 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7627 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7628 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7629 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7630 		nv->efi_parameters = cpu_to_le32(0);
7631 		nv->reset_delay = 5;
7632 		nv->max_luns_per_target = cpu_to_le16(128);
7633 		nv->port_down_retry_count = cpu_to_le16(30);
7634 		nv->link_down_timeout = cpu_to_le16(30);
7635 
7636 		rval = 1;
7637 	}
7638 
7639 	if (qla_tgt_mode_enabled(vha)) {
7640 		/* Don't enable full login after initial LIP */
7641 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7642 		/* Don't enable LIP full login for initiator */
7643 		nv->host_p &= cpu_to_le32(~BIT_10);
7644 	}
7645 
7646 	qlt_24xx_config_nvram_stage1(vha, nv);
7647 
7648 	/* Reset Initialization control block */
7649 	memset(icb, 0, ha->init_cb_size);
7650 
7651 	/* Copy 1st segment. */
7652 	dptr1 = (uint8_t *)icb;
7653 	dptr2 = (uint8_t *)&nv->version;
7654 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7655 	while (cnt--)
7656 		*dptr1++ = *dptr2++;
7657 
7658 	icb->login_retry_count = nv->login_retry_count;
7659 	icb->link_down_on_nos = nv->link_down_on_nos;
7660 
7661 	/* Copy 2nd segment. */
7662 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7663 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7664 	cnt = (uint8_t *)&icb->reserved_3 -
7665 	    (uint8_t *)&icb->interrupt_delay_timer;
7666 	while (cnt--)
7667 		*dptr1++ = *dptr2++;
7668 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
7669 	/*
7670 	 * Setup driver NVRAM options.
7671 	 */
7672 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7673 	    "QLA2462");
7674 
7675 	qlt_24xx_config_nvram_stage2(vha, icb);
7676 
7677 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7678 		/* Use alternate WWN? */
7679 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7680 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7681 	}
7682 
7683 	/* Prepare nodename */
7684 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7685 		/*
7686 		 * Firmware will apply the following mask if the nodename was
7687 		 * not provided.
7688 		 */
7689 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7690 		icb->node_name[0] &= 0xF0;
7691 	}
7692 
7693 	/* Set host adapter parameters. */
7694 	ha->flags.disable_risc_code_load = 0;
7695 	ha->flags.enable_lip_reset = 0;
7696 	ha->flags.enable_lip_full_login =
7697 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
7698 	ha->flags.enable_target_reset =
7699 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
7700 	ha->flags.enable_led_scheme = 0;
7701 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
7702 
7703 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7704 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7705 
7706 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
7707 	    sizeof(ha->fw_seriallink_options24));
7708 
7709 	/* save HBA serial number */
7710 	ha->serial0 = icb->port_name[5];
7711 	ha->serial1 = icb->port_name[6];
7712 	ha->serial2 = icb->port_name[7];
7713 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7714 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7715 
7716 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7717 
7718 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7719 
7720 	/* Set minimum login_timeout to 4 seconds. */
7721 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7722 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7723 	if (le16_to_cpu(nv->login_timeout) < 4)
7724 		nv->login_timeout = cpu_to_le16(4);
7725 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7726 
7727 	/* Set minimum RATOV to 100 tenths of a second. */
7728 	ha->r_a_tov = 100;
7729 
7730 	ha->loop_reset_delay = nv->reset_delay;
7731 
7732 	/* Link Down Timeout = 0:
7733 	 *
7734 	 * 	When Port Down timer expires we will start returning
7735 	 *	I/O's to OS with "DID_NO_CONNECT".
7736 	 *
7737 	 * Link Down Timeout != 0:
7738 	 *
7739 	 *	 The driver waits for the link to come up after link down
7740 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7741 	 */
7742 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7743 		ha->loop_down_abort_time =
7744 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7745 	} else {
7746 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7747 		ha->loop_down_abort_time =
7748 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7749 	}
7750 
7751 	/* Need enough time to try and get the port back. */
7752 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7753 	if (qlport_down_retry)
7754 		ha->port_down_retry_count = qlport_down_retry;
7755 
7756 	/* Set login_retry_count */
7757 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7758 	if (ha->port_down_retry_count ==
7759 	    le16_to_cpu(nv->port_down_retry_count) &&
7760 	    ha->port_down_retry_count > 3)
7761 		ha->login_retry_count = ha->port_down_retry_count;
7762 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
7763 		ha->login_retry_count = ha->port_down_retry_count;
7764 	if (ql2xloginretrycount)
7765 		ha->login_retry_count = ql2xloginretrycount;
7766 
7767 	/* N2N: driver will initiate Login instead of FW */
7768 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
7769 
7770 	/* Enable ZIO. */
7771 	if (!vha->flags.init_done) {
7772 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
7773 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
7774 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
7775 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
7776 	}
7777 	icb->firmware_options_2 &= cpu_to_le32(
7778 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
7779 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
7780 		ha->zio_mode = QLA_ZIO_MODE_6;
7781 
7782 		ql_log(ql_log_info, vha, 0x006f,
7783 		    "ZIO mode %d enabled; timer delay (%d us).\n",
7784 		    ha->zio_mode, ha->zio_timer * 100);
7785 
7786 		icb->firmware_options_2 |= cpu_to_le32(
7787 		    (uint32_t)ha->zio_mode);
7788 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
7789 	}
7790 
7791 	if (rval) {
7792 		ql_log(ql_log_warn, vha, 0x0070,
7793 		    "NVRAM configuration failed.\n");
7794 	}
7795 	return (rval);
7796 }
7797 
7798 static void
7799 qla27xx_print_image(struct scsi_qla_host *vha, char *name,
7800     struct qla27xx_image_status *image_status)
7801 {
7802 	ql_dbg(ql_dbg_init, vha, 0x018b,
7803 	    "%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
7804 	    name, "status",
7805 	    image_status->image_status_mask,
7806 	    le16_to_cpu(image_status->generation),
7807 	    image_status->ver_major,
7808 	    image_status->ver_minor,
7809 	    image_status->bitmap,
7810 	    le32_to_cpu(image_status->checksum),
7811 	    le32_to_cpu(image_status->signature));
7812 }
7813 
7814 static bool
7815 qla28xx_check_aux_image_status_signature(
7816     struct qla27xx_image_status *image_status)
7817 {
7818 	ulong signature = le32_to_cpu(image_status->signature);
7819 
7820 	return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
7821 }
7822 
7823 static bool
7824 qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
7825 {
7826 	ulong signature = le32_to_cpu(image_status->signature);
7827 
7828 	return
7829 	    signature != QLA27XX_IMG_STATUS_SIGN &&
7830 	    signature != QLA28XX_IMG_STATUS_SIGN;
7831 }
7832 
7833 static ulong
7834 qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
7835 {
7836 	__le32 *p = (__force __le32 *)image_status;
7837 	uint n = sizeof(*image_status) / sizeof(*p);
7838 	uint32_t sum = 0;
7839 
7840 	for ( ; n--; p++)
7841 		sum += le32_to_cpup(p);
7842 
7843 	return sum;
7844 }
7845 
7846 static inline uint
7847 qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
7848 {
7849 	return aux->bitmap & bitmask ?
7850 	    QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
7851 }
7852 
7853 static void
7854 qla28xx_component_status(
7855     struct active_regions *active_regions, struct qla27xx_image_status *aux)
7856 {
7857 	active_regions->aux.board_config =
7858 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
7859 
7860 	active_regions->aux.vpd_nvram =
7861 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
7862 
7863 	active_regions->aux.npiv_config_0_1 =
7864 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
7865 
7866 	active_regions->aux.npiv_config_2_3 =
7867 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
7868 }
7869 
7870 static int
7871 qla27xx_compare_image_generation(
7872     struct qla27xx_image_status *pri_image_status,
7873     struct qla27xx_image_status *sec_image_status)
7874 {
7875 	/* calculate generation delta as uint16 (this accounts for wrap) */
7876 	int16_t delta =
7877 	    le16_to_cpu(pri_image_status->generation) -
7878 	    le16_to_cpu(sec_image_status->generation);
7879 
7880 	ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
7881 
7882 	return delta;
7883 }
7884 
7885 void
7886 qla28xx_get_aux_images(
7887 	struct scsi_qla_host *vha, struct active_regions *active_regions)
7888 {
7889 	struct qla_hw_data *ha = vha->hw;
7890 	struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
7891 	bool valid_pri_image = false, valid_sec_image = false;
7892 	bool active_pri_image = false, active_sec_image = false;
7893 
7894 	if (!ha->flt_region_aux_img_status_pri) {
7895 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
7896 		goto check_sec_image;
7897 	}
7898 
7899 	qla24xx_read_flash_data(vha, (uint32_t *)&pri_aux_image_status,
7900 	    ha->flt_region_aux_img_status_pri,
7901 	    sizeof(pri_aux_image_status) >> 2);
7902 	qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
7903 
7904 	if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
7905 		ql_dbg(ql_dbg_init, vha, 0x018b,
7906 		    "Primary aux image signature (%#x) not valid\n",
7907 		    le32_to_cpu(pri_aux_image_status.signature));
7908 		goto check_sec_image;
7909 	}
7910 
7911 	if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
7912 		ql_dbg(ql_dbg_init, vha, 0x018c,
7913 		    "Primary aux image checksum failed\n");
7914 		goto check_sec_image;
7915 	}
7916 
7917 	valid_pri_image = true;
7918 
7919 	if (pri_aux_image_status.image_status_mask & 1) {
7920 		ql_dbg(ql_dbg_init, vha, 0x018d,
7921 		    "Primary aux image is active\n");
7922 		active_pri_image = true;
7923 	}
7924 
7925 check_sec_image:
7926 	if (!ha->flt_region_aux_img_status_sec) {
7927 		ql_dbg(ql_dbg_init, vha, 0x018a,
7928 		    "Secondary aux image not addressed\n");
7929 		goto check_valid_image;
7930 	}
7931 
7932 	qla24xx_read_flash_data(vha, (uint32_t *)&sec_aux_image_status,
7933 	    ha->flt_region_aux_img_status_sec,
7934 	    sizeof(sec_aux_image_status) >> 2);
7935 	qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
7936 
7937 	if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
7938 		ql_dbg(ql_dbg_init, vha, 0x018b,
7939 		    "Secondary aux image signature (%#x) not valid\n",
7940 		    le32_to_cpu(sec_aux_image_status.signature));
7941 		goto check_valid_image;
7942 	}
7943 
7944 	if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
7945 		ql_dbg(ql_dbg_init, vha, 0x018c,
7946 		    "Secondary aux image checksum failed\n");
7947 		goto check_valid_image;
7948 	}
7949 
7950 	valid_sec_image = true;
7951 
7952 	if (sec_aux_image_status.image_status_mask & 1) {
7953 		ql_dbg(ql_dbg_init, vha, 0x018d,
7954 		    "Secondary aux image is active\n");
7955 		active_sec_image = true;
7956 	}
7957 
7958 check_valid_image:
7959 	if (valid_pri_image && active_pri_image &&
7960 	    valid_sec_image && active_sec_image) {
7961 		if (qla27xx_compare_image_generation(&pri_aux_image_status,
7962 		    &sec_aux_image_status) >= 0) {
7963 			qla28xx_component_status(active_regions,
7964 			    &pri_aux_image_status);
7965 		} else {
7966 			qla28xx_component_status(active_regions,
7967 			    &sec_aux_image_status);
7968 		}
7969 	} else if (valid_pri_image && active_pri_image) {
7970 		qla28xx_component_status(active_regions, &pri_aux_image_status);
7971 	} else if (valid_sec_image && active_sec_image) {
7972 		qla28xx_component_status(active_regions, &sec_aux_image_status);
7973 	}
7974 
7975 	ql_dbg(ql_dbg_init, vha, 0x018f,
7976 	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u\n",
7977 	    active_regions->aux.board_config,
7978 	    active_regions->aux.vpd_nvram,
7979 	    active_regions->aux.npiv_config_0_1,
7980 	    active_regions->aux.npiv_config_2_3);
7981 }
7982 
7983 void
7984 qla27xx_get_active_image(struct scsi_qla_host *vha,
7985     struct active_regions *active_regions)
7986 {
7987 	struct qla_hw_data *ha = vha->hw;
7988 	struct qla27xx_image_status pri_image_status, sec_image_status;
7989 	bool valid_pri_image = false, valid_sec_image = false;
7990 	bool active_pri_image = false, active_sec_image = false;
7991 
7992 	if (!ha->flt_region_img_status_pri) {
7993 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
7994 		goto check_sec_image;
7995 	}
7996 
7997 	if (qla24xx_read_flash_data(vha, (uint32_t *)&pri_image_status,
7998 	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
7999 	    QLA_SUCCESS) {
8000 		WARN_ON_ONCE(true);
8001 		goto check_sec_image;
8002 	}
8003 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
8004 
8005 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
8006 		ql_dbg(ql_dbg_init, vha, 0x018b,
8007 		    "Primary image signature (%#x) not valid\n",
8008 		    le32_to_cpu(pri_image_status.signature));
8009 		goto check_sec_image;
8010 	}
8011 
8012 	if (qla27xx_image_status_checksum(&pri_image_status)) {
8013 		ql_dbg(ql_dbg_init, vha, 0x018c,
8014 		    "Primary image checksum failed\n");
8015 		goto check_sec_image;
8016 	}
8017 
8018 	valid_pri_image = true;
8019 
8020 	if (pri_image_status.image_status_mask & 1) {
8021 		ql_dbg(ql_dbg_init, vha, 0x018d,
8022 		    "Primary image is active\n");
8023 		active_pri_image = true;
8024 	}
8025 
8026 check_sec_image:
8027 	if (!ha->flt_region_img_status_sec) {
8028 		ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
8029 		goto check_valid_image;
8030 	}
8031 
8032 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
8033 	    ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
8034 	qla27xx_print_image(vha, "Secondary image", &sec_image_status);
8035 
8036 	if (qla27xx_check_image_status_signature(&sec_image_status)) {
8037 		ql_dbg(ql_dbg_init, vha, 0x018b,
8038 		    "Secondary image signature (%#x) not valid\n",
8039 		    le32_to_cpu(sec_image_status.signature));
8040 		goto check_valid_image;
8041 	}
8042 
8043 	if (qla27xx_image_status_checksum(&sec_image_status)) {
8044 		ql_dbg(ql_dbg_init, vha, 0x018c,
8045 		    "Secondary image checksum failed\n");
8046 		goto check_valid_image;
8047 	}
8048 
8049 	valid_sec_image = true;
8050 
8051 	if (sec_image_status.image_status_mask & 1) {
8052 		ql_dbg(ql_dbg_init, vha, 0x018d,
8053 		    "Secondary image is active\n");
8054 		active_sec_image = true;
8055 	}
8056 
8057 check_valid_image:
8058 	if (valid_pri_image && active_pri_image)
8059 		active_regions->global = QLA27XX_PRIMARY_IMAGE;
8060 
8061 	if (valid_sec_image && active_sec_image) {
8062 		if (!active_regions->global ||
8063 		    qla27xx_compare_image_generation(
8064 			&pri_image_status, &sec_image_status) < 0) {
8065 			active_regions->global = QLA27XX_SECONDARY_IMAGE;
8066 		}
8067 	}
8068 
8069 	ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
8070 	    active_regions->global == QLA27XX_DEFAULT_IMAGE ?
8071 		"default (boot/fw)" :
8072 	    active_regions->global == QLA27XX_PRIMARY_IMAGE ?
8073 		"primary" :
8074 	    active_regions->global == QLA27XX_SECONDARY_IMAGE ?
8075 		"secondary" : "invalid",
8076 	    active_regions->global);
8077 }
8078 
8079 bool qla24xx_risc_firmware_invalid(uint32_t *dword)
8080 {
8081 	return
8082 	    !(dword[4] | dword[5] | dword[6] | dword[7]) ||
8083 	    !(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
8084 }
8085 
8086 static int
8087 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
8088     uint32_t faddr)
8089 {
8090 	int rval;
8091 	uint templates, segments, fragment;
8092 	ulong i;
8093 	uint j;
8094 	ulong dlen;
8095 	uint32_t *dcode;
8096 	uint32_t risc_addr, risc_size, risc_attr = 0;
8097 	struct qla_hw_data *ha = vha->hw;
8098 	struct req_que *req = ha->req_q_map[0];
8099 	struct fwdt *fwdt = ha->fwdt;
8100 
8101 	ql_dbg(ql_dbg_init, vha, 0x008b,
8102 	    "FW: Loading firmware from flash (%x).\n", faddr);
8103 
8104 	dcode = (uint32_t *)req->ring;
8105 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
8106 	if (qla24xx_risc_firmware_invalid(dcode)) {
8107 		ql_log(ql_log_fatal, vha, 0x008c,
8108 		    "Unable to verify the integrity of flash firmware "
8109 		    "image.\n");
8110 		ql_log(ql_log_fatal, vha, 0x008d,
8111 		    "Firmware data: %08x %08x %08x %08x.\n",
8112 		    dcode[0], dcode[1], dcode[2], dcode[3]);
8113 
8114 		return QLA_FUNCTION_FAILED;
8115 	}
8116 
8117 	dcode = (uint32_t *)req->ring;
8118 	*srisc_addr = 0;
8119 	segments = FA_RISC_CODE_SEGMENTS;
8120 	for (j = 0; j < segments; j++) {
8121 		ql_dbg(ql_dbg_init, vha, 0x008d,
8122 		    "-> Loading segment %u...\n", j);
8123 		qla24xx_read_flash_data(vha, dcode, faddr, 10);
8124 		risc_addr = be32_to_cpu((__force __be32)dcode[2]);
8125 		risc_size = be32_to_cpu((__force __be32)dcode[3]);
8126 		if (!*srisc_addr) {
8127 			*srisc_addr = risc_addr;
8128 			risc_attr = be32_to_cpu((__force __be32)dcode[9]);
8129 		}
8130 
8131 		dlen = ha->fw_transfer_size >> 2;
8132 		for (fragment = 0; risc_size; fragment++) {
8133 			if (dlen > risc_size)
8134 				dlen = risc_size;
8135 
8136 			ql_dbg(ql_dbg_init, vha, 0x008e,
8137 			    "-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
8138 			    fragment, risc_addr, faddr, dlen);
8139 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
8140 			for (i = 0; i < dlen; i++)
8141 				dcode[i] = swab32(dcode[i]);
8142 
8143 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8144 			if (rval) {
8145 				ql_log(ql_log_fatal, vha, 0x008f,
8146 				    "-> Failed load firmware fragment %u.\n",
8147 				    fragment);
8148 				return QLA_FUNCTION_FAILED;
8149 			}
8150 
8151 			faddr += dlen;
8152 			risc_addr += dlen;
8153 			risc_size -= dlen;
8154 		}
8155 	}
8156 
8157 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8158 		return QLA_SUCCESS;
8159 
8160 	templates = (risc_attr & BIT_9) ? 2 : 1;
8161 	ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
8162 	for (j = 0; j < templates; j++, fwdt++) {
8163 		vfree(fwdt->template);
8164 		fwdt->template = NULL;
8165 		fwdt->length = 0;
8166 
8167 		dcode = (uint32_t *)req->ring;
8168 		qla24xx_read_flash_data(vha, dcode, faddr, 7);
8169 		risc_size = be32_to_cpu((__force __be32)dcode[2]);
8170 		ql_dbg(ql_dbg_init, vha, 0x0161,
8171 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8172 		    j, faddr, risc_size);
8173 		if (!risc_size || !~risc_size) {
8174 			ql_dbg(ql_dbg_init, vha, 0x0162,
8175 			    "-> fwdt%u failed to read array\n", j);
8176 			goto failed;
8177 		}
8178 
8179 		/* skip header and ignore checksum */
8180 		faddr += 7;
8181 		risc_size -= 8;
8182 
8183 		ql_dbg(ql_dbg_init, vha, 0x0163,
8184 		    "-> fwdt%u template allocate template %#x words...\n",
8185 		    j, risc_size);
8186 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8187 		if (!fwdt->template) {
8188 			ql_log(ql_log_warn, vha, 0x0164,
8189 			    "-> fwdt%u failed allocate template.\n", j);
8190 			goto failed;
8191 		}
8192 
8193 		dcode = fwdt->template;
8194 		qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
8195 
8196 		if (!qla27xx_fwdt_template_valid(dcode)) {
8197 			ql_log(ql_log_warn, vha, 0x0165,
8198 			    "-> fwdt%u failed template validate\n", j);
8199 			goto failed;
8200 		}
8201 
8202 		dlen = qla27xx_fwdt_template_size(dcode);
8203 		ql_dbg(ql_dbg_init, vha, 0x0166,
8204 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8205 		    j, dlen, dlen / sizeof(*dcode));
8206 		if (dlen > risc_size * sizeof(*dcode)) {
8207 			ql_log(ql_log_warn, vha, 0x0167,
8208 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8209 			    j, dlen - risc_size * sizeof(*dcode));
8210 			goto failed;
8211 		}
8212 
8213 		fwdt->length = dlen;
8214 		ql_dbg(ql_dbg_init, vha, 0x0168,
8215 		    "-> fwdt%u loaded template ok\n", j);
8216 
8217 		faddr += risc_size + 1;
8218 	}
8219 
8220 	return QLA_SUCCESS;
8221 
8222 failed:
8223 	vfree(fwdt->template);
8224 	fwdt->template = NULL;
8225 	fwdt->length = 0;
8226 
8227 	return QLA_SUCCESS;
8228 }
8229 
8230 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
8231 
8232 int
8233 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8234 {
8235 	int	rval;
8236 	int	i, fragment;
8237 	uint16_t *wcode;
8238 	__be16	 *fwcode;
8239 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
8240 	struct fw_blob *blob;
8241 	struct qla_hw_data *ha = vha->hw;
8242 	struct req_que *req = ha->req_q_map[0];
8243 
8244 	/* Load firmware blob. */
8245 	blob = qla2x00_request_firmware(vha);
8246 	if (!blob) {
8247 		ql_log(ql_log_info, vha, 0x0083,
8248 		    "Firmware image unavailable.\n");
8249 		ql_log(ql_log_info, vha, 0x0084,
8250 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
8251 		return QLA_FUNCTION_FAILED;
8252 	}
8253 
8254 	rval = QLA_SUCCESS;
8255 
8256 	wcode = (uint16_t *)req->ring;
8257 	*srisc_addr = 0;
8258 	fwcode = (__force __be16 *)blob->fw->data;
8259 	fwclen = 0;
8260 
8261 	/* Validate firmware image by checking version. */
8262 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
8263 		ql_log(ql_log_fatal, vha, 0x0085,
8264 		    "Unable to verify integrity of firmware image (%zd).\n",
8265 		    blob->fw->size);
8266 		goto fail_fw_integrity;
8267 	}
8268 	for (i = 0; i < 4; i++)
8269 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
8270 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
8271 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
8272 		wcode[2] == 0 && wcode[3] == 0)) {
8273 		ql_log(ql_log_fatal, vha, 0x0086,
8274 		    "Unable to verify integrity of firmware image.\n");
8275 		ql_log(ql_log_fatal, vha, 0x0087,
8276 		    "Firmware data: %04x %04x %04x %04x.\n",
8277 		    wcode[0], wcode[1], wcode[2], wcode[3]);
8278 		goto fail_fw_integrity;
8279 	}
8280 
8281 	seg = blob->segs;
8282 	while (*seg && rval == QLA_SUCCESS) {
8283 		risc_addr = *seg;
8284 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
8285 		risc_size = be16_to_cpu(fwcode[3]);
8286 
8287 		/* Validate firmware image size. */
8288 		fwclen += risc_size * sizeof(uint16_t);
8289 		if (blob->fw->size < fwclen) {
8290 			ql_log(ql_log_fatal, vha, 0x0088,
8291 			    "Unable to verify integrity of firmware image "
8292 			    "(%zd).\n", blob->fw->size);
8293 			goto fail_fw_integrity;
8294 		}
8295 
8296 		fragment = 0;
8297 		while (risc_size > 0 && rval == QLA_SUCCESS) {
8298 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
8299 			if (wlen > risc_size)
8300 				wlen = risc_size;
8301 			ql_dbg(ql_dbg_init, vha, 0x0089,
8302 			    "Loading risc segment@ risc addr %x number of "
8303 			    "words 0x%x.\n", risc_addr, wlen);
8304 
8305 			for (i = 0; i < wlen; i++)
8306 				wcode[i] = swab16((__force u32)fwcode[i]);
8307 
8308 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
8309 			    wlen);
8310 			if (rval) {
8311 				ql_log(ql_log_fatal, vha, 0x008a,
8312 				    "Failed to load segment %d of firmware.\n",
8313 				    fragment);
8314 				break;
8315 			}
8316 
8317 			fwcode += wlen;
8318 			risc_addr += wlen;
8319 			risc_size -= wlen;
8320 			fragment++;
8321 		}
8322 
8323 		/* Next segment. */
8324 		seg++;
8325 	}
8326 	return rval;
8327 
8328 fail_fw_integrity:
8329 	return QLA_FUNCTION_FAILED;
8330 }
8331 
8332 static int
8333 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8334 {
8335 	int	rval;
8336 	uint templates, segments, fragment;
8337 	uint32_t *dcode;
8338 	ulong dlen;
8339 	uint32_t risc_addr, risc_size, risc_attr = 0;
8340 	ulong i;
8341 	uint j;
8342 	struct fw_blob *blob;
8343 	__be32 *fwcode;
8344 	struct qla_hw_data *ha = vha->hw;
8345 	struct req_que *req = ha->req_q_map[0];
8346 	struct fwdt *fwdt = ha->fwdt;
8347 
8348 	ql_dbg(ql_dbg_init, vha, 0x0090,
8349 	    "-> FW: Loading via request-firmware.\n");
8350 
8351 	blob = qla2x00_request_firmware(vha);
8352 	if (!blob) {
8353 		ql_log(ql_log_warn, vha, 0x0092,
8354 		    "-> Firmware file not found.\n");
8355 
8356 		return QLA_FUNCTION_FAILED;
8357 	}
8358 
8359 	fwcode = (__force __be32 *)blob->fw->data;
8360 	dcode = (__force uint32_t *)fwcode;
8361 	if (qla24xx_risc_firmware_invalid(dcode)) {
8362 		ql_log(ql_log_fatal, vha, 0x0093,
8363 		    "Unable to verify integrity of firmware image (%zd).\n",
8364 		    blob->fw->size);
8365 		ql_log(ql_log_fatal, vha, 0x0095,
8366 		    "Firmware data: %08x %08x %08x %08x.\n",
8367 		    dcode[0], dcode[1], dcode[2], dcode[3]);
8368 		return QLA_FUNCTION_FAILED;
8369 	}
8370 
8371 	dcode = (uint32_t *)req->ring;
8372 	*srisc_addr = 0;
8373 	segments = FA_RISC_CODE_SEGMENTS;
8374 	for (j = 0; j < segments; j++) {
8375 		ql_dbg(ql_dbg_init, vha, 0x0096,
8376 		    "-> Loading segment %u...\n", j);
8377 		risc_addr = be32_to_cpu(fwcode[2]);
8378 		risc_size = be32_to_cpu(fwcode[3]);
8379 
8380 		if (!*srisc_addr) {
8381 			*srisc_addr = risc_addr;
8382 			risc_attr = be32_to_cpu(fwcode[9]);
8383 		}
8384 
8385 		dlen = ha->fw_transfer_size >> 2;
8386 		for (fragment = 0; risc_size; fragment++) {
8387 			if (dlen > risc_size)
8388 				dlen = risc_size;
8389 
8390 			ql_dbg(ql_dbg_init, vha, 0x0097,
8391 			    "-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
8392 			    fragment, risc_addr,
8393 			    (uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
8394 			    dlen);
8395 
8396 			for (i = 0; i < dlen; i++)
8397 				dcode[i] = swab32((__force u32)fwcode[i]);
8398 
8399 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8400 			if (rval) {
8401 				ql_log(ql_log_fatal, vha, 0x0098,
8402 				    "-> Failed load firmware fragment %u.\n",
8403 				    fragment);
8404 				return QLA_FUNCTION_FAILED;
8405 			}
8406 
8407 			fwcode += dlen;
8408 			risc_addr += dlen;
8409 			risc_size -= dlen;
8410 		}
8411 	}
8412 
8413 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8414 		return QLA_SUCCESS;
8415 
8416 	templates = (risc_attr & BIT_9) ? 2 : 1;
8417 	ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
8418 	for (j = 0; j < templates; j++, fwdt++) {
8419 		vfree(fwdt->template);
8420 		fwdt->template = NULL;
8421 		fwdt->length = 0;
8422 
8423 		risc_size = be32_to_cpu(fwcode[2]);
8424 		ql_dbg(ql_dbg_init, vha, 0x0171,
8425 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8426 		    j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
8427 		    risc_size);
8428 		if (!risc_size || !~risc_size) {
8429 			ql_dbg(ql_dbg_init, vha, 0x0172,
8430 			    "-> fwdt%u failed to read array\n", j);
8431 			goto failed;
8432 		}
8433 
8434 		/* skip header and ignore checksum */
8435 		fwcode += 7;
8436 		risc_size -= 8;
8437 
8438 		ql_dbg(ql_dbg_init, vha, 0x0173,
8439 		    "-> fwdt%u template allocate template %#x words...\n",
8440 		    j, risc_size);
8441 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8442 		if (!fwdt->template) {
8443 			ql_log(ql_log_warn, vha, 0x0174,
8444 			    "-> fwdt%u failed allocate template.\n", j);
8445 			goto failed;
8446 		}
8447 
8448 		dcode = fwdt->template;
8449 		for (i = 0; i < risc_size; i++)
8450 			dcode[i] = (__force u32)fwcode[i];
8451 
8452 		if (!qla27xx_fwdt_template_valid(dcode)) {
8453 			ql_log(ql_log_warn, vha, 0x0175,
8454 			    "-> fwdt%u failed template validate\n", j);
8455 			goto failed;
8456 		}
8457 
8458 		dlen = qla27xx_fwdt_template_size(dcode);
8459 		ql_dbg(ql_dbg_init, vha, 0x0176,
8460 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8461 		    j, dlen, dlen / sizeof(*dcode));
8462 		if (dlen > risc_size * sizeof(*dcode)) {
8463 			ql_log(ql_log_warn, vha, 0x0177,
8464 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8465 			    j, dlen - risc_size * sizeof(*dcode));
8466 			goto failed;
8467 		}
8468 
8469 		fwdt->length = dlen;
8470 		ql_dbg(ql_dbg_init, vha, 0x0178,
8471 		    "-> fwdt%u loaded template ok\n", j);
8472 
8473 		fwcode += risc_size + 1;
8474 	}
8475 
8476 	return QLA_SUCCESS;
8477 
8478 failed:
8479 	vfree(fwdt->template);
8480 	fwdt->template = NULL;
8481 	fwdt->length = 0;
8482 
8483 	return QLA_SUCCESS;
8484 }
8485 
8486 int
8487 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8488 {
8489 	int rval;
8490 
8491 	if (ql2xfwloadbin == 1)
8492 		return qla81xx_load_risc(vha, srisc_addr);
8493 
8494 	/*
8495 	 * FW Load priority:
8496 	 * 1) Firmware via request-firmware interface (.bin file).
8497 	 * 2) Firmware residing in flash.
8498 	 */
8499 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8500 	if (rval == QLA_SUCCESS)
8501 		return rval;
8502 
8503 	return qla24xx_load_risc_flash(vha, srisc_addr,
8504 	    vha->hw->flt_region_fw);
8505 }
8506 
8507 int
8508 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8509 {
8510 	int rval;
8511 	struct qla_hw_data *ha = vha->hw;
8512 	struct active_regions active_regions = { };
8513 
8514 	if (ql2xfwloadbin == 2)
8515 		goto try_blob_fw;
8516 
8517 	/* FW Load priority:
8518 	 * 1) Firmware residing in flash.
8519 	 * 2) Firmware via request-firmware interface (.bin file).
8520 	 * 3) Golden-Firmware residing in flash -- (limited operation).
8521 	 */
8522 
8523 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8524 		goto try_primary_fw;
8525 
8526 	qla27xx_get_active_image(vha, &active_regions);
8527 
8528 	if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
8529 		goto try_primary_fw;
8530 
8531 	ql_dbg(ql_dbg_init, vha, 0x008b,
8532 	    "Loading secondary firmware image.\n");
8533 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
8534 	if (!rval)
8535 		return rval;
8536 
8537 try_primary_fw:
8538 	ql_dbg(ql_dbg_init, vha, 0x008b,
8539 	    "Loading primary firmware image.\n");
8540 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
8541 	if (!rval)
8542 		return rval;
8543 
8544 try_blob_fw:
8545 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8546 	if (!rval || !ha->flt_region_gold_fw)
8547 		return rval;
8548 
8549 	ql_log(ql_log_info, vha, 0x0099,
8550 	    "Attempting to fallback to golden firmware.\n");
8551 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
8552 	if (rval)
8553 		return rval;
8554 
8555 	ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
8556 	ha->flags.running_gold_fw = 1;
8557 	return rval;
8558 }
8559 
8560 void
8561 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
8562 {
8563 	int ret, retries;
8564 	struct qla_hw_data *ha = vha->hw;
8565 
8566 	if (ha->flags.pci_channel_io_perm_failure)
8567 		return;
8568 	if (!IS_FWI2_CAPABLE(ha))
8569 		return;
8570 	if (!ha->fw_major_version)
8571 		return;
8572 	if (!ha->flags.fw_started)
8573 		return;
8574 
8575 	ret = qla2x00_stop_firmware(vha);
8576 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
8577 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
8578 		ha->isp_ops->reset_chip(vha);
8579 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
8580 			continue;
8581 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
8582 			continue;
8583 		ql_log(ql_log_info, vha, 0x8015,
8584 		    "Attempting retry of stop-firmware command.\n");
8585 		ret = qla2x00_stop_firmware(vha);
8586 	}
8587 
8588 	QLA_FW_STOPPED(ha);
8589 	ha->flags.fw_init_done = 0;
8590 }
8591 
8592 int
8593 qla24xx_configure_vhba(scsi_qla_host_t *vha)
8594 {
8595 	int rval = QLA_SUCCESS;
8596 	int rval2;
8597 	uint16_t mb[MAILBOX_REGISTER_COUNT];
8598 	struct qla_hw_data *ha = vha->hw;
8599 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8600 
8601 	if (!vha->vp_idx)
8602 		return -EINVAL;
8603 
8604 	rval = qla2x00_fw_ready(base_vha);
8605 
8606 	if (rval == QLA_SUCCESS) {
8607 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8608 		qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8609 	}
8610 
8611 	vha->flags.management_server_logged_in = 0;
8612 
8613 	/* Login to SNS first */
8614 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
8615 	    BIT_1);
8616 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
8617 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
8618 			ql_dbg(ql_dbg_init, vha, 0x0120,
8619 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
8620 			    NPH_SNS, rval2);
8621 		else
8622 			ql_dbg(ql_dbg_init, vha, 0x0103,
8623 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
8624 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
8625 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
8626 		return (QLA_FUNCTION_FAILED);
8627 	}
8628 
8629 	atomic_set(&vha->loop_down_timer, 0);
8630 	atomic_set(&vha->loop_state, LOOP_UP);
8631 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8632 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
8633 	rval = qla2x00_loop_resync(base_vha);
8634 
8635 	return rval;
8636 }
8637 
8638 /* 84XX Support **************************************************************/
8639 
8640 static LIST_HEAD(qla_cs84xx_list);
8641 static DEFINE_MUTEX(qla_cs84xx_mutex);
8642 
8643 static struct qla_chip_state_84xx *
8644 qla84xx_get_chip(struct scsi_qla_host *vha)
8645 {
8646 	struct qla_chip_state_84xx *cs84xx;
8647 	struct qla_hw_data *ha = vha->hw;
8648 
8649 	mutex_lock(&qla_cs84xx_mutex);
8650 
8651 	/* Find any shared 84xx chip. */
8652 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
8653 		if (cs84xx->bus == ha->pdev->bus) {
8654 			kref_get(&cs84xx->kref);
8655 			goto done;
8656 		}
8657 	}
8658 
8659 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
8660 	if (!cs84xx)
8661 		goto done;
8662 
8663 	kref_init(&cs84xx->kref);
8664 	spin_lock_init(&cs84xx->access_lock);
8665 	mutex_init(&cs84xx->fw_update_mutex);
8666 	cs84xx->bus = ha->pdev->bus;
8667 
8668 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
8669 done:
8670 	mutex_unlock(&qla_cs84xx_mutex);
8671 	return cs84xx;
8672 }
8673 
8674 static void
8675 __qla84xx_chip_release(struct kref *kref)
8676 {
8677 	struct qla_chip_state_84xx *cs84xx =
8678 	    container_of(kref, struct qla_chip_state_84xx, kref);
8679 
8680 	mutex_lock(&qla_cs84xx_mutex);
8681 	list_del(&cs84xx->list);
8682 	mutex_unlock(&qla_cs84xx_mutex);
8683 	kfree(cs84xx);
8684 }
8685 
8686 void
8687 qla84xx_put_chip(struct scsi_qla_host *vha)
8688 {
8689 	struct qla_hw_data *ha = vha->hw;
8690 
8691 	if (ha->cs84xx)
8692 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
8693 }
8694 
8695 static int
8696 qla84xx_init_chip(scsi_qla_host_t *vha)
8697 {
8698 	int rval;
8699 	uint16_t status[2];
8700 	struct qla_hw_data *ha = vha->hw;
8701 
8702 	mutex_lock(&ha->cs84xx->fw_update_mutex);
8703 
8704 	rval = qla84xx_verify_chip(vha, status);
8705 
8706 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
8707 
8708 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
8709 	    QLA_SUCCESS;
8710 }
8711 
8712 /* 81XX Support **************************************************************/
8713 
8714 int
8715 qla81xx_nvram_config(scsi_qla_host_t *vha)
8716 {
8717 	int   rval;
8718 	struct init_cb_81xx *icb;
8719 	struct nvram_81xx *nv;
8720 	__le32 *dptr;
8721 	uint8_t  *dptr1, *dptr2;
8722 	uint32_t chksum;
8723 	uint16_t cnt;
8724 	struct qla_hw_data *ha = vha->hw;
8725 	uint32_t faddr;
8726 	struct active_regions active_regions = { };
8727 
8728 	rval = QLA_SUCCESS;
8729 	icb = (struct init_cb_81xx *)ha->init_cb;
8730 	nv = ha->nvram;
8731 
8732 	/* Determine NVRAM starting address. */
8733 	ha->nvram_size = sizeof(*nv);
8734 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
8735 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
8736 		ha->vpd_size = FA_VPD_SIZE_82XX;
8737 
8738 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
8739 		qla28xx_get_aux_images(vha, &active_regions);
8740 
8741 	/* Get VPD data into cache */
8742 	ha->vpd = ha->nvram + VPD_OFFSET;
8743 
8744 	faddr = ha->flt_region_vpd;
8745 	if (IS_QLA28XX(ha)) {
8746 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8747 			faddr = ha->flt_region_vpd_sec;
8748 		ql_dbg(ql_dbg_init, vha, 0x0110,
8749 		    "Loading %s nvram image.\n",
8750 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8751 		    "primary" : "secondary");
8752 	}
8753 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
8754 
8755 	/* Get NVRAM data into cache and calculate checksum. */
8756 	faddr = ha->flt_region_nvram;
8757 	if (IS_QLA28XX(ha)) {
8758 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8759 			faddr = ha->flt_region_nvram_sec;
8760 	}
8761 	ql_dbg(ql_dbg_init, vha, 0x0110,
8762 	    "Loading %s nvram image.\n",
8763 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8764 	    "primary" : "secondary");
8765 	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
8766 
8767 	dptr = (__force __le32 *)nv;
8768 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
8769 		chksum += le32_to_cpu(*dptr);
8770 
8771 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
8772 	    "Contents of NVRAM:\n");
8773 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
8774 	    nv, ha->nvram_size);
8775 
8776 	/* Bad NVRAM data, set defaults parameters. */
8777 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
8778 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
8779 		/* Reset NVRAM data. */
8780 		ql_log(ql_log_info, vha, 0x0073,
8781 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
8782 		    chksum, nv->id, le16_to_cpu(nv->nvram_version));
8783 		ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
8784 		ql_log(ql_log_info, vha, 0x0074,
8785 		    "Falling back to functioning (yet invalid -- WWPN) "
8786 		    "defaults.\n");
8787 
8788 		/*
8789 		 * Set default initialization control block.
8790 		 */
8791 		memset(nv, 0, ha->nvram_size);
8792 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
8793 		nv->version = cpu_to_le16(ICB_VERSION);
8794 		nv->frame_payload_size = cpu_to_le16(2048);
8795 		nv->execution_throttle = cpu_to_le16(0xFFFF);
8796 		nv->exchange_count = cpu_to_le16(0);
8797 		nv->port_name[0] = 0x21;
8798 		nv->port_name[1] = 0x00 + ha->port_no + 1;
8799 		nv->port_name[2] = 0x00;
8800 		nv->port_name[3] = 0xe0;
8801 		nv->port_name[4] = 0x8b;
8802 		nv->port_name[5] = 0x1c;
8803 		nv->port_name[6] = 0x55;
8804 		nv->port_name[7] = 0x86;
8805 		nv->node_name[0] = 0x20;
8806 		nv->node_name[1] = 0x00;
8807 		nv->node_name[2] = 0x00;
8808 		nv->node_name[3] = 0xe0;
8809 		nv->node_name[4] = 0x8b;
8810 		nv->node_name[5] = 0x1c;
8811 		nv->node_name[6] = 0x55;
8812 		nv->node_name[7] = 0x86;
8813 		nv->login_retry_count = cpu_to_le16(8);
8814 		nv->interrupt_delay_timer = cpu_to_le16(0);
8815 		nv->login_timeout = cpu_to_le16(0);
8816 		nv->firmware_options_1 =
8817 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
8818 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
8819 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
8820 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
8821 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
8822 		nv->efi_parameters = cpu_to_le32(0);
8823 		nv->reset_delay = 5;
8824 		nv->max_luns_per_target = cpu_to_le16(128);
8825 		nv->port_down_retry_count = cpu_to_le16(30);
8826 		nv->link_down_timeout = cpu_to_le16(180);
8827 		nv->enode_mac[0] = 0x00;
8828 		nv->enode_mac[1] = 0xC0;
8829 		nv->enode_mac[2] = 0xDD;
8830 		nv->enode_mac[3] = 0x04;
8831 		nv->enode_mac[4] = 0x05;
8832 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
8833 
8834 		rval = 1;
8835 	}
8836 
8837 	if (IS_T10_PI_CAPABLE(ha))
8838 		nv->frame_payload_size &= cpu_to_le16(~7);
8839 
8840 	qlt_81xx_config_nvram_stage1(vha, nv);
8841 
8842 	/* Reset Initialization control block */
8843 	memset(icb, 0, ha->init_cb_size);
8844 
8845 	/* Copy 1st segment. */
8846 	dptr1 = (uint8_t *)icb;
8847 	dptr2 = (uint8_t *)&nv->version;
8848 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
8849 	while (cnt--)
8850 		*dptr1++ = *dptr2++;
8851 
8852 	icb->login_retry_count = nv->login_retry_count;
8853 
8854 	/* Copy 2nd segment. */
8855 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
8856 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
8857 	cnt = (uint8_t *)&icb->reserved_5 -
8858 	    (uint8_t *)&icb->interrupt_delay_timer;
8859 	while (cnt--)
8860 		*dptr1++ = *dptr2++;
8861 
8862 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
8863 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
8864 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
8865 		icb->enode_mac[0] = 0x00;
8866 		icb->enode_mac[1] = 0xC0;
8867 		icb->enode_mac[2] = 0xDD;
8868 		icb->enode_mac[3] = 0x04;
8869 		icb->enode_mac[4] = 0x05;
8870 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
8871 	}
8872 
8873 	/* Use extended-initialization control block. */
8874 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
8875 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
8876 	/*
8877 	 * Setup driver NVRAM options.
8878 	 */
8879 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
8880 	    "QLE8XXX");
8881 
8882 	qlt_81xx_config_nvram_stage2(vha, icb);
8883 
8884 	/* Use alternate WWN? */
8885 	if (nv->host_p & cpu_to_le32(BIT_15)) {
8886 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
8887 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
8888 	}
8889 
8890 	/* Prepare nodename */
8891 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
8892 		/*
8893 		 * Firmware will apply the following mask if the nodename was
8894 		 * not provided.
8895 		 */
8896 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
8897 		icb->node_name[0] &= 0xF0;
8898 	}
8899 
8900 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) {
8901 		if ((nv->enhanced_features & BIT_7) == 0)
8902 			ha->flags.scm_supported_a = 1;
8903 	}
8904 
8905 	/* Set host adapter parameters. */
8906 	ha->flags.disable_risc_code_load = 0;
8907 	ha->flags.enable_lip_reset = 0;
8908 	ha->flags.enable_lip_full_login =
8909 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
8910 	ha->flags.enable_target_reset =
8911 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
8912 	ha->flags.enable_led_scheme = 0;
8913 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
8914 
8915 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
8916 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
8917 
8918 	/* save HBA serial number */
8919 	ha->serial0 = icb->port_name[5];
8920 	ha->serial1 = icb->port_name[6];
8921 	ha->serial2 = icb->port_name[7];
8922 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
8923 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
8924 
8925 	icb->execution_throttle = cpu_to_le16(0xFFFF);
8926 
8927 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
8928 
8929 	/* Set minimum login_timeout to 4 seconds. */
8930 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
8931 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
8932 	if (le16_to_cpu(nv->login_timeout) < 4)
8933 		nv->login_timeout = cpu_to_le16(4);
8934 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
8935 
8936 	/* Set minimum RATOV to 100 tenths of a second. */
8937 	ha->r_a_tov = 100;
8938 
8939 	ha->loop_reset_delay = nv->reset_delay;
8940 
8941 	/* Link Down Timeout = 0:
8942 	 *
8943 	 *	When Port Down timer expires we will start returning
8944 	 *	I/O's to OS with "DID_NO_CONNECT".
8945 	 *
8946 	 * Link Down Timeout != 0:
8947 	 *
8948 	 *	 The driver waits for the link to come up after link down
8949 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
8950 	 */
8951 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
8952 		ha->loop_down_abort_time =
8953 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
8954 	} else {
8955 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
8956 		ha->loop_down_abort_time =
8957 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
8958 	}
8959 
8960 	/* Need enough time to try and get the port back. */
8961 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
8962 	if (qlport_down_retry)
8963 		ha->port_down_retry_count = qlport_down_retry;
8964 
8965 	/* Set login_retry_count */
8966 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
8967 	if (ha->port_down_retry_count ==
8968 	    le16_to_cpu(nv->port_down_retry_count) &&
8969 	    ha->port_down_retry_count > 3)
8970 		ha->login_retry_count = ha->port_down_retry_count;
8971 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
8972 		ha->login_retry_count = ha->port_down_retry_count;
8973 	if (ql2xloginretrycount)
8974 		ha->login_retry_count = ql2xloginretrycount;
8975 
8976 	/* if not running MSI-X we need handshaking on interrupts */
8977 	if (!vha->hw->flags.msix_enabled &&
8978 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
8979 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
8980 
8981 	/* Enable ZIO. */
8982 	if (!vha->flags.init_done) {
8983 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
8984 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
8985 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
8986 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
8987 	}
8988 	icb->firmware_options_2 &= cpu_to_le32(
8989 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
8990 	vha->flags.process_response_queue = 0;
8991 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
8992 		ha->zio_mode = QLA_ZIO_MODE_6;
8993 
8994 		ql_log(ql_log_info, vha, 0x0075,
8995 		    "ZIO mode %d enabled; timer delay (%d us).\n",
8996 		    ha->zio_mode,
8997 		    ha->zio_timer * 100);
8998 
8999 		icb->firmware_options_2 |= cpu_to_le32(
9000 		    (uint32_t)ha->zio_mode);
9001 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
9002 		vha->flags.process_response_queue = 1;
9003 	}
9004 
9005 	 /* enable RIDA Format2 */
9006 	icb->firmware_options_3 |= cpu_to_le32(BIT_0);
9007 
9008 	/* N2N: driver will initiate Login instead of FW */
9009 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
9010 
9011 	/* Determine NVMe/FCP priority for target ports */
9012 	ha->fc4_type_priority = qla2xxx_get_fc4_priority(vha);
9013 
9014 	if (rval) {
9015 		ql_log(ql_log_warn, vha, 0x0076,
9016 		    "NVRAM configuration failed.\n");
9017 	}
9018 	return (rval);
9019 }
9020 
9021 int
9022 qla82xx_restart_isp(scsi_qla_host_t *vha)
9023 {
9024 	int status, rval;
9025 	struct qla_hw_data *ha = vha->hw;
9026 	struct scsi_qla_host *vp, *tvp;
9027 	unsigned long flags;
9028 
9029 	status = qla2x00_init_rings(vha);
9030 	if (!status) {
9031 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
9032 		ha->flags.chip_reset_done = 1;
9033 
9034 		status = qla2x00_fw_ready(vha);
9035 		if (!status) {
9036 			/* Issue a marker after FW becomes ready. */
9037 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
9038 			vha->flags.online = 1;
9039 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
9040 		}
9041 
9042 		/* if no cable then assume it's good */
9043 		if ((vha->device_flags & DFLG_NO_CABLE))
9044 			status = 0;
9045 	}
9046 
9047 	if (!status) {
9048 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
9049 
9050 		if (!atomic_read(&vha->loop_down_timer)) {
9051 			/*
9052 			 * Issue marker command only when we are going
9053 			 * to start the I/O .
9054 			 */
9055 			vha->marker_needed = 1;
9056 		}
9057 
9058 		ha->isp_ops->enable_intrs(ha);
9059 
9060 		ha->isp_abort_cnt = 0;
9061 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
9062 
9063 		/* Update the firmware version */
9064 		status = qla82xx_check_md_needed(vha);
9065 
9066 		if (ha->fce) {
9067 			ha->flags.fce_enabled = 1;
9068 			memset(ha->fce, 0,
9069 			    fce_calc_size(ha->fce_bufs));
9070 			rval = qla2x00_enable_fce_trace(vha,
9071 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
9072 			    &ha->fce_bufs);
9073 			if (rval) {
9074 				ql_log(ql_log_warn, vha, 0x8001,
9075 				    "Unable to reinitialize FCE (%d).\n",
9076 				    rval);
9077 				ha->flags.fce_enabled = 0;
9078 			}
9079 		}
9080 
9081 		if (ha->eft) {
9082 			memset(ha->eft, 0, EFT_SIZE);
9083 			rval = qla2x00_enable_eft_trace(vha,
9084 			    ha->eft_dma, EFT_NUM_BUFFERS);
9085 			if (rval) {
9086 				ql_log(ql_log_warn, vha, 0x8010,
9087 				    "Unable to reinitialize EFT (%d).\n",
9088 				    rval);
9089 			}
9090 		}
9091 	}
9092 
9093 	if (!status) {
9094 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
9095 		    "qla82xx_restart_isp succeeded.\n");
9096 
9097 		spin_lock_irqsave(&ha->vport_slock, flags);
9098 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
9099 			if (vp->vp_idx) {
9100 				atomic_inc(&vp->vref_count);
9101 				spin_unlock_irqrestore(&ha->vport_slock, flags);
9102 
9103 				qla2x00_vp_abort_isp(vp);
9104 
9105 				spin_lock_irqsave(&ha->vport_slock, flags);
9106 				atomic_dec(&vp->vref_count);
9107 			}
9108 		}
9109 		spin_unlock_irqrestore(&ha->vport_slock, flags);
9110 
9111 	} else {
9112 		ql_log(ql_log_warn, vha, 0x8016,
9113 		    "qla82xx_restart_isp **** FAILED ****.\n");
9114 	}
9115 
9116 	return status;
9117 }
9118 
9119 /*
9120  * qla24xx_get_fcp_prio
9121  *	Gets the fcp cmd priority value for the logged in port.
9122  *	Looks for a match of the port descriptors within
9123  *	each of the fcp prio config entries. If a match is found,
9124  *	the tag (priority) value is returned.
9125  *
9126  * Input:
9127  *	vha = scsi host structure pointer.
9128  *	fcport = port structure pointer.
9129  *
9130  * Return:
9131  *	non-zero (if found)
9132  *	-1 (if not found)
9133  *
9134  * Context:
9135  * 	Kernel context
9136  */
9137 static int
9138 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
9139 {
9140 	int i, entries;
9141 	uint8_t pid_match, wwn_match;
9142 	int priority;
9143 	uint32_t pid1, pid2;
9144 	uint64_t wwn1, wwn2;
9145 	struct qla_fcp_prio_entry *pri_entry;
9146 	struct qla_hw_data *ha = vha->hw;
9147 
9148 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
9149 		return -1;
9150 
9151 	priority = -1;
9152 	entries = ha->fcp_prio_cfg->num_entries;
9153 	pri_entry = &ha->fcp_prio_cfg->entry[0];
9154 
9155 	for (i = 0; i < entries; i++) {
9156 		pid_match = wwn_match = 0;
9157 
9158 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
9159 			pri_entry++;
9160 			continue;
9161 		}
9162 
9163 		/* check source pid for a match */
9164 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
9165 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
9166 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
9167 			if (pid1 == INVALID_PORT_ID)
9168 				pid_match++;
9169 			else if (pid1 == pid2)
9170 				pid_match++;
9171 		}
9172 
9173 		/* check destination pid for a match */
9174 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
9175 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
9176 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
9177 			if (pid1 == INVALID_PORT_ID)
9178 				pid_match++;
9179 			else if (pid1 == pid2)
9180 				pid_match++;
9181 		}
9182 
9183 		/* check source WWN for a match */
9184 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
9185 			wwn1 = wwn_to_u64(vha->port_name);
9186 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
9187 			if (wwn2 == (uint64_t)-1)
9188 				wwn_match++;
9189 			else if (wwn1 == wwn2)
9190 				wwn_match++;
9191 		}
9192 
9193 		/* check destination WWN for a match */
9194 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
9195 			wwn1 = wwn_to_u64(fcport->port_name);
9196 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
9197 			if (wwn2 == (uint64_t)-1)
9198 				wwn_match++;
9199 			else if (wwn1 == wwn2)
9200 				wwn_match++;
9201 		}
9202 
9203 		if (pid_match == 2 || wwn_match == 2) {
9204 			/* Found a matching entry */
9205 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
9206 				priority = pri_entry->tag;
9207 			break;
9208 		}
9209 
9210 		pri_entry++;
9211 	}
9212 
9213 	return priority;
9214 }
9215 
9216 /*
9217  * qla24xx_update_fcport_fcp_prio
9218  *	Activates fcp priority for the logged in fc port
9219  *
9220  * Input:
9221  *	vha = scsi host structure pointer.
9222  *	fcp = port structure pointer.
9223  *
9224  * Return:
9225  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
9226  *
9227  * Context:
9228  *	Kernel context.
9229  */
9230 int
9231 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
9232 {
9233 	int ret;
9234 	int priority;
9235 	uint16_t mb[5];
9236 
9237 	if (fcport->port_type != FCT_TARGET ||
9238 	    fcport->loop_id == FC_NO_LOOP_ID)
9239 		return QLA_FUNCTION_FAILED;
9240 
9241 	priority = qla24xx_get_fcp_prio(vha, fcport);
9242 	if (priority < 0)
9243 		return QLA_FUNCTION_FAILED;
9244 
9245 	if (IS_P3P_TYPE(vha->hw)) {
9246 		fcport->fcp_prio = priority & 0xf;
9247 		return QLA_SUCCESS;
9248 	}
9249 
9250 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
9251 	if (ret == QLA_SUCCESS) {
9252 		if (fcport->fcp_prio != priority)
9253 			ql_dbg(ql_dbg_user, vha, 0x709e,
9254 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
9255 			    "port_id=%02x%02x%02x.\n", priority,
9256 			    fcport->loop_id, fcport->d_id.b.domain,
9257 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
9258 		fcport->fcp_prio = priority & 0xf;
9259 	} else
9260 		ql_dbg(ql_dbg_user, vha, 0x704f,
9261 		    "Unable to update FCP_CMND priority - ret=0x%x for "
9262 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
9263 		    fcport->d_id.b.domain, fcport->d_id.b.area,
9264 		    fcport->d_id.b.al_pa);
9265 	return  ret;
9266 }
9267 
9268 /*
9269  * qla24xx_update_all_fcp_prio
9270  *	Activates fcp priority for all the logged in ports
9271  *
9272  * Input:
9273  *	ha = adapter block pointer.
9274  *
9275  * Return:
9276  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
9277  *
9278  * Context:
9279  *	Kernel context.
9280  */
9281 int
9282 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
9283 {
9284 	int ret;
9285 	fc_port_t *fcport;
9286 
9287 	ret = QLA_FUNCTION_FAILED;
9288 	/* We need to set priority for all logged in ports */
9289 	list_for_each_entry(fcport, &vha->vp_fcports, list)
9290 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
9291 
9292 	return ret;
9293 }
9294 
9295 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
9296 	int vp_idx, bool startqp)
9297 {
9298 	int rsp_id = 0;
9299 	int  req_id = 0;
9300 	int i;
9301 	struct qla_hw_data *ha = vha->hw;
9302 	uint16_t qpair_id = 0;
9303 	struct qla_qpair *qpair = NULL;
9304 	struct qla_msix_entry *msix;
9305 
9306 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
9307 		ql_log(ql_log_warn, vha, 0x00181,
9308 		    "FW/Driver is not multi-queue capable.\n");
9309 		return NULL;
9310 	}
9311 
9312 	if (ql2xmqsupport || ql2xnvmeenable) {
9313 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
9314 		if (qpair == NULL) {
9315 			ql_log(ql_log_warn, vha, 0x0182,
9316 			    "Failed to allocate memory for queue pair.\n");
9317 			return NULL;
9318 		}
9319 
9320 		qpair->hw = vha->hw;
9321 		qpair->vha = vha;
9322 		qpair->qp_lock_ptr = &qpair->qp_lock;
9323 		spin_lock_init(&qpair->qp_lock);
9324 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
9325 
9326 		/* Assign available que pair id */
9327 		mutex_lock(&ha->mq_lock);
9328 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
9329 		if (ha->num_qpairs >= ha->max_qpairs) {
9330 			mutex_unlock(&ha->mq_lock);
9331 			ql_log(ql_log_warn, vha, 0x0183,
9332 			    "No resources to create additional q pair.\n");
9333 			goto fail_qid_map;
9334 		}
9335 		ha->num_qpairs++;
9336 		set_bit(qpair_id, ha->qpair_qid_map);
9337 		ha->queue_pair_map[qpair_id] = qpair;
9338 		qpair->id = qpair_id;
9339 		qpair->vp_idx = vp_idx;
9340 		qpair->fw_started = ha->flags.fw_started;
9341 		INIT_LIST_HEAD(&qpair->hints_list);
9342 		qpair->chip_reset = ha->base_qpair->chip_reset;
9343 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
9344 		qpair->enable_explicit_conf =
9345 		    ha->base_qpair->enable_explicit_conf;
9346 
9347 		for (i = 0; i < ha->msix_count; i++) {
9348 			msix = &ha->msix_entries[i];
9349 			if (msix->in_use)
9350 				continue;
9351 			qpair->msix = msix;
9352 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
9353 			    "Vector %x selected for qpair\n", msix->vector);
9354 			break;
9355 		}
9356 		if (!qpair->msix) {
9357 			ql_log(ql_log_warn, vha, 0x0184,
9358 			    "Out of MSI-X vectors!.\n");
9359 			goto fail_msix;
9360 		}
9361 
9362 		qpair->msix->in_use = 1;
9363 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
9364 		qpair->pdev = ha->pdev;
9365 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
9366 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
9367 
9368 		mutex_unlock(&ha->mq_lock);
9369 
9370 		/* Create response queue first */
9371 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
9372 		if (!rsp_id) {
9373 			ql_log(ql_log_warn, vha, 0x0185,
9374 			    "Failed to create response queue.\n");
9375 			goto fail_rsp;
9376 		}
9377 
9378 		qpair->rsp = ha->rsp_q_map[rsp_id];
9379 
9380 		/* Create request queue */
9381 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
9382 		    startqp);
9383 		if (!req_id) {
9384 			ql_log(ql_log_warn, vha, 0x0186,
9385 			    "Failed to create request queue.\n");
9386 			goto fail_req;
9387 		}
9388 
9389 		qpair->req = ha->req_q_map[req_id];
9390 		qpair->rsp->req = qpair->req;
9391 		qpair->rsp->qpair = qpair;
9392 		/* init qpair to this cpu. Will adjust at run time. */
9393 		qla_cpu_update(qpair, smp_processor_id());
9394 
9395 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
9396 			if (ha->fw_attributes & BIT_4)
9397 				qpair->difdix_supported = 1;
9398 		}
9399 
9400 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
9401 		if (!qpair->srb_mempool) {
9402 			ql_log(ql_log_warn, vha, 0xd036,
9403 			    "Failed to create srb mempool for qpair %d\n",
9404 			    qpair->id);
9405 			goto fail_mempool;
9406 		}
9407 
9408 		/* Mark as online */
9409 		qpair->online = 1;
9410 
9411 		if (!vha->flags.qpairs_available)
9412 			vha->flags.qpairs_available = 1;
9413 
9414 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
9415 		    "Request/Response queue pair created, id %d\n",
9416 		    qpair->id);
9417 		ql_dbg(ql_dbg_init, vha, 0x0187,
9418 		    "Request/Response queue pair created, id %d\n",
9419 		    qpair->id);
9420 	}
9421 	return qpair;
9422 
9423 fail_mempool:
9424 fail_req:
9425 	qla25xx_delete_rsp_que(vha, qpair->rsp);
9426 fail_rsp:
9427 	mutex_lock(&ha->mq_lock);
9428 	qpair->msix->in_use = 0;
9429 	list_del(&qpair->qp_list_elem);
9430 	if (list_empty(&vha->qp_list))
9431 		vha->flags.qpairs_available = 0;
9432 fail_msix:
9433 	ha->queue_pair_map[qpair_id] = NULL;
9434 	clear_bit(qpair_id, ha->qpair_qid_map);
9435 	ha->num_qpairs--;
9436 	mutex_unlock(&ha->mq_lock);
9437 fail_qid_map:
9438 	kfree(qpair);
9439 	return NULL;
9440 }
9441 
9442 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
9443 {
9444 	int ret = QLA_FUNCTION_FAILED;
9445 	struct qla_hw_data *ha = qpair->hw;
9446 
9447 	qpair->delete_in_progress = 1;
9448 
9449 	ret = qla25xx_delete_req_que(vha, qpair->req);
9450 	if (ret != QLA_SUCCESS)
9451 		goto fail;
9452 
9453 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
9454 	if (ret != QLA_SUCCESS)
9455 		goto fail;
9456 
9457 	mutex_lock(&ha->mq_lock);
9458 	ha->queue_pair_map[qpair->id] = NULL;
9459 	clear_bit(qpair->id, ha->qpair_qid_map);
9460 	ha->num_qpairs--;
9461 	list_del(&qpair->qp_list_elem);
9462 	if (list_empty(&vha->qp_list)) {
9463 		vha->flags.qpairs_available = 0;
9464 		vha->flags.qpairs_req_created = 0;
9465 		vha->flags.qpairs_rsp_created = 0;
9466 	}
9467 	mempool_destroy(qpair->srb_mempool);
9468 	kfree(qpair);
9469 	mutex_unlock(&ha->mq_lock);
9470 
9471 	return QLA_SUCCESS;
9472 fail:
9473 	return ret;
9474 }
9475 
9476 uint64_t
9477 qla2x00_count_set_bits(uint32_t num)
9478 {
9479 	/* Brian Kernighan's Algorithm */
9480 	u64 count = 0;
9481 
9482 	while (num) {
9483 		num &= (num - 1);
9484 		count++;
9485 	}
9486 	return count;
9487 }
9488 
9489 uint64_t
9490 qla2x00_get_num_tgts(scsi_qla_host_t *vha)
9491 {
9492 	fc_port_t *f, *tf;
9493 	u64 count = 0;
9494 
9495 	f = NULL;
9496 	tf = NULL;
9497 
9498 	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
9499 		if (f->port_type != FCT_TARGET)
9500 			continue;
9501 		count++;
9502 	}
9503 	return count;
9504 }
9505 
9506 int qla2xxx_reset_stats(struct Scsi_Host *host, u32 flags)
9507 {
9508 	scsi_qla_host_t *vha = shost_priv(host);
9509 	fc_port_t *fcport = NULL;
9510 	unsigned long int_flags;
9511 
9512 	if (flags & QLA2XX_HW_ERROR)
9513 		vha->hw_err_cnt = 0;
9514 	if (flags & QLA2XX_SHT_LNK_DWN)
9515 		vha->short_link_down_cnt = 0;
9516 	if (flags & QLA2XX_INT_ERR)
9517 		vha->interface_err_cnt = 0;
9518 	if (flags & QLA2XX_CMD_TIMEOUT)
9519 		vha->cmd_timeout_cnt = 0;
9520 	if (flags & QLA2XX_RESET_CMD_ERR)
9521 		vha->reset_cmd_err_cnt = 0;
9522 	if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
9523 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
9524 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
9525 			fcport->tgt_short_link_down_cnt = 0;
9526 			fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
9527 		}
9528 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
9529 	}
9530 	vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
9531 	return 0;
9532 }
9533 
9534 int qla2xxx_start_stats(struct Scsi_Host *host, u32 flags)
9535 {
9536 	return qla2xxx_reset_stats(host, flags);
9537 }
9538 
9539 int qla2xxx_stop_stats(struct Scsi_Host *host, u32 flags)
9540 {
9541 	return qla2xxx_reset_stats(host, flags);
9542 }
9543 
9544 int qla2xxx_get_ini_stats(struct Scsi_Host *host, u32 flags,
9545 			  void *data, u64 size)
9546 {
9547 	scsi_qla_host_t *vha = shost_priv(host);
9548 	struct ql_vnd_host_stats_resp *resp = (struct ql_vnd_host_stats_resp *)data;
9549 	struct ql_vnd_stats *rsp_data = &resp->stats;
9550 	u64 ini_entry_count = 0;
9551 	u64 i = 0;
9552 	u64 entry_count = 0;
9553 	u64 num_tgt = 0;
9554 	u32 tmp_stat_type = 0;
9555 	fc_port_t *fcport = NULL;
9556 	unsigned long int_flags;
9557 
9558 	/* Copy stat type to work on it */
9559 	tmp_stat_type = flags;
9560 
9561 	if (tmp_stat_type & BIT_17) {
9562 		num_tgt = qla2x00_get_num_tgts(vha);
9563 		/* unset BIT_17 */
9564 		tmp_stat_type &= ~(1 << 17);
9565 	}
9566 	ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
9567 
9568 	entry_count = ini_entry_count + num_tgt;
9569 
9570 	rsp_data->entry_count = entry_count;
9571 
9572 	i = 0;
9573 	if (flags & QLA2XX_HW_ERROR) {
9574 		rsp_data->entry[i].stat_type = QLA2XX_HW_ERROR;
9575 		rsp_data->entry[i].tgt_num = 0x0;
9576 		rsp_data->entry[i].cnt = vha->hw_err_cnt;
9577 		i++;
9578 	}
9579 
9580 	if (flags & QLA2XX_SHT_LNK_DWN) {
9581 		rsp_data->entry[i].stat_type = QLA2XX_SHT_LNK_DWN;
9582 		rsp_data->entry[i].tgt_num = 0x0;
9583 		rsp_data->entry[i].cnt = vha->short_link_down_cnt;
9584 		i++;
9585 	}
9586 
9587 	if (flags & QLA2XX_INT_ERR) {
9588 		rsp_data->entry[i].stat_type = QLA2XX_INT_ERR;
9589 		rsp_data->entry[i].tgt_num = 0x0;
9590 		rsp_data->entry[i].cnt = vha->interface_err_cnt;
9591 		i++;
9592 	}
9593 
9594 	if (flags & QLA2XX_CMD_TIMEOUT) {
9595 		rsp_data->entry[i].stat_type = QLA2XX_CMD_TIMEOUT;
9596 		rsp_data->entry[i].tgt_num = 0x0;
9597 		rsp_data->entry[i].cnt = vha->cmd_timeout_cnt;
9598 		i++;
9599 	}
9600 
9601 	if (flags & QLA2XX_RESET_CMD_ERR) {
9602 		rsp_data->entry[i].stat_type = QLA2XX_RESET_CMD_ERR;
9603 		rsp_data->entry[i].tgt_num = 0x0;
9604 		rsp_data->entry[i].cnt = vha->reset_cmd_err_cnt;
9605 		i++;
9606 	}
9607 
9608 	/* i will continue from previous loop, as target
9609 	 * entries are after initiator
9610 	 */
9611 	if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
9612 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
9613 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
9614 			if (fcport->port_type != FCT_TARGET)
9615 				continue;
9616 			if (!fcport->rport)
9617 				continue;
9618 			rsp_data->entry[i].stat_type = QLA2XX_TGT_SHT_LNK_DOWN;
9619 			rsp_data->entry[i].tgt_num = fcport->rport->number;
9620 			rsp_data->entry[i].cnt = fcport->tgt_short_link_down_cnt;
9621 			i++;
9622 		}
9623 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
9624 	}
9625 	resp->status = EXT_STATUS_OK;
9626 
9627 	return 0;
9628 }
9629 
9630 int qla2xxx_get_tgt_stats(struct Scsi_Host *host, u32 flags,
9631 			  struct fc_rport *rport, void *data, u64 size)
9632 {
9633 	struct ql_vnd_tgt_stats_resp *tgt_data = data;
9634 	fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
9635 
9636 	tgt_data->status = 0;
9637 	tgt_data->stats.entry_count = 1;
9638 	tgt_data->stats.entry[0].stat_type = flags;
9639 	tgt_data->stats.entry[0].tgt_num = rport->number;
9640 	tgt_data->stats.entry[0].cnt = fcport->tgt_short_link_down_cnt;
9641 
9642 	return 0;
9643 }
9644 
9645 int qla2xxx_disable_port(struct Scsi_Host *host)
9646 {
9647 	scsi_qla_host_t *vha = shost_priv(host);
9648 
9649 	vha->hw->flags.port_isolated = 1;
9650 
9651 	if (qla2x00_chip_is_down(vha))
9652 		return 0;
9653 
9654 	if (vha->flags.online) {
9655 		qla2x00_abort_isp_cleanup(vha);
9656 		qla2x00_wait_for_sess_deletion(vha);
9657 	}
9658 
9659 	return 0;
9660 }
9661 
9662 int qla2xxx_enable_port(struct Scsi_Host *host)
9663 {
9664 	scsi_qla_host_t *vha = shost_priv(host);
9665 
9666 	vha->hw->flags.port_isolated = 0;
9667 	/* Set the flag to 1, so that isp_abort can proceed */
9668 	vha->flags.online = 1;
9669 	set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9670 	qla2xxx_wake_dpc(vha);
9671 
9672 	return 0;
9673 }
9674