xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision e27a85c1)
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 	scsi_qla_host_t *vha = sp->vha;
51 
52 	WARN_ON(irqs_disabled());
53 	iocb = &sp->u.iocb_cmd;
54 	iocb->timeout(sp);
55 
56 	/* ref: TMR */
57 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
58 
59 	if (vha && qla2x00_isp_reg_stat(vha->hw)) {
60 		ql_log(ql_log_info, vha, 0x9008,
61 		    "PCI/Register disconnect.\n");
62 		qla_pci_set_eeh_busy(vha);
63 	}
64 }
65 
66 void qla2x00_sp_free(srb_t *sp)
67 {
68 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
69 
70 	del_timer(&iocb->timer);
71 	qla2x00_rel_sp(sp);
72 }
73 
74 void qla2xxx_rel_done_warning(srb_t *sp, int res)
75 {
76 	WARN_ONCE(1, "Calling done() of an already freed srb %p object\n", sp);
77 }
78 
79 void qla2xxx_rel_free_warning(srb_t *sp)
80 {
81 	WARN_ONCE(1, "Calling free() of an already freed srb %p object\n", sp);
82 }
83 
84 /* Asynchronous Login/Logout Routines -------------------------------------- */
85 
86 unsigned long
87 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
88 {
89 	unsigned long tmo;
90 	struct qla_hw_data *ha = vha->hw;
91 
92 	/* Firmware should use switch negotiated r_a_tov for timeout. */
93 	tmo = ha->r_a_tov / 10 * 2;
94 	if (IS_QLAFX00(ha)) {
95 		tmo = FX00_DEF_RATOV * 2;
96 	} else if (!IS_FWI2_CAPABLE(ha)) {
97 		/*
98 		 * Except for earlier ISPs where the timeout is seeded from the
99 		 * initialization control block.
100 		 */
101 		tmo = ha->login_timeout;
102 	}
103 	return tmo;
104 }
105 
106 static void qla24xx_abort_iocb_timeout(void *data)
107 {
108 	srb_t *sp = data;
109 	struct srb_iocb *abt = &sp->u.iocb_cmd;
110 	struct qla_qpair *qpair = sp->qpair;
111 	u32 handle;
112 	unsigned long flags;
113 	int sp_found = 0, cmdsp_found = 0;
114 
115 	if (sp->cmd_sp)
116 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
117 		    "Abort timeout - cmd hdl=%x, cmd type=%x hdl=%x, type=%x\n",
118 		    sp->cmd_sp->handle, sp->cmd_sp->type,
119 		    sp->handle, sp->type);
120 	else
121 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
122 		    "Abort timeout 2 - hdl=%x, type=%x\n",
123 		    sp->handle, sp->type);
124 
125 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
126 	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
127 		if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
128 		    sp->cmd_sp)) {
129 			qpair->req->outstanding_cmds[handle] = NULL;
130 			cmdsp_found = 1;
131 			qla_put_fw_resources(qpair, &sp->cmd_sp->iores);
132 		}
133 
134 		/* removing the abort */
135 		if (qpair->req->outstanding_cmds[handle] == sp) {
136 			qpair->req->outstanding_cmds[handle] = NULL;
137 			sp_found = 1;
138 			qla_put_fw_resources(qpair, &sp->iores);
139 			break;
140 		}
141 	}
142 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
143 
144 	if (cmdsp_found && sp->cmd_sp) {
145 		/*
146 		 * This done function should take care of
147 		 * original command ref: INIT
148 		 */
149 		sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
150 	}
151 
152 	if (sp_found) {
153 		abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
154 		sp->done(sp, QLA_OS_TIMER_EXPIRED);
155 	}
156 }
157 
158 static void qla24xx_abort_sp_done(srb_t *sp, int res)
159 {
160 	struct srb_iocb *abt = &sp->u.iocb_cmd;
161 	srb_t *orig_sp = sp->cmd_sp;
162 
163 	if (orig_sp)
164 		qla_wait_nvme_release_cmd_kref(orig_sp);
165 
166 	if (sp->flags & SRB_WAKEUP_ON_COMP)
167 		complete(&abt->u.abt.comp);
168 	else
169 		/* ref: INIT */
170 		kref_put(&sp->cmd_kref, qla2x00_sp_release);
171 }
172 
173 int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
174 {
175 	scsi_qla_host_t *vha = cmd_sp->vha;
176 	struct srb_iocb *abt_iocb;
177 	srb_t *sp;
178 	int rval = QLA_FUNCTION_FAILED;
179 
180 	/* ref: INIT for ABTS command */
181 	sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
182 				  GFP_ATOMIC);
183 	if (!sp)
184 		return QLA_MEMORY_ALLOC_FAILED;
185 
186 	qla_vha_mark_busy(vha);
187 	abt_iocb = &sp->u.iocb_cmd;
188 	sp->type = SRB_ABT_CMD;
189 	sp->name = "abort";
190 	sp->qpair = cmd_sp->qpair;
191 	sp->cmd_sp = cmd_sp;
192 	if (wait)
193 		sp->flags = SRB_WAKEUP_ON_COMP;
194 
195 	init_completion(&abt_iocb->u.abt.comp);
196 	/* FW can send 2 x ABTS's timeout/20s */
197 	qla2x00_init_async_sp(sp, 42, qla24xx_abort_sp_done);
198 	sp->u.iocb_cmd.timeout = qla24xx_abort_iocb_timeout;
199 
200 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
201 	abt_iocb->u.abt.req_que_no = cpu_to_le16(cmd_sp->qpair->req->id);
202 
203 	ql_dbg(ql_dbg_async, vha, 0x507c,
204 	       "Abort command issued - hdl=%x, type=%x\n", cmd_sp->handle,
205 	       cmd_sp->type);
206 
207 	rval = qla2x00_start_sp(sp);
208 	if (rval != QLA_SUCCESS) {
209 		/* ref: INIT */
210 		kref_put(&sp->cmd_kref, qla2x00_sp_release);
211 		return rval;
212 	}
213 
214 	if (wait) {
215 		wait_for_completion(&abt_iocb->u.abt.comp);
216 		rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
217 			QLA_SUCCESS : QLA_ERR_FROM_FW;
218 		/* ref: INIT */
219 		kref_put(&sp->cmd_kref, qla2x00_sp_release);
220 	}
221 
222 	return rval;
223 }
224 
225 void
226 qla2x00_async_iocb_timeout(void *data)
227 {
228 	srb_t *sp = data;
229 	fc_port_t *fcport = sp->fcport;
230 	struct srb_iocb *lio = &sp->u.iocb_cmd;
231 	int rc, h;
232 	unsigned long flags;
233 
234 	if (fcport) {
235 		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
236 		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
237 		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
238 
239 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
240 	} else {
241 		pr_info("Async-%s timeout - hdl=%x.\n",
242 		    sp->name, sp->handle);
243 	}
244 
245 	switch (sp->type) {
246 	case SRB_LOGIN_CMD:
247 		rc = qla24xx_async_abort_cmd(sp, false);
248 		if (rc) {
249 			/* Retry as needed. */
250 			lio->u.logio.data[0] = MBS_COMMAND_ERROR;
251 			lio->u.logio.data[1] =
252 				lio->u.logio.flags & SRB_LOGIN_RETRIED ?
253 				QLA_LOGIO_LOGIN_RETRIED : 0;
254 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
255 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
256 			    h++) {
257 				if (sp->qpair->req->outstanding_cmds[h] ==
258 				    sp) {
259 					sp->qpair->req->outstanding_cmds[h] =
260 					    NULL;
261 					break;
262 				}
263 			}
264 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
265 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
266 		}
267 		break;
268 	case SRB_LOGOUT_CMD:
269 	case SRB_CT_PTHRU_CMD:
270 	case SRB_MB_IOCB:
271 	case SRB_NACK_PLOGI:
272 	case SRB_NACK_PRLI:
273 	case SRB_NACK_LOGO:
274 	case SRB_CTRL_VP:
275 	default:
276 		rc = qla24xx_async_abort_cmd(sp, false);
277 		if (rc) {
278 			spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
279 			for (h = 1; h < sp->qpair->req->num_outstanding_cmds;
280 			    h++) {
281 				if (sp->qpair->req->outstanding_cmds[h] ==
282 				    sp) {
283 					sp->qpair->req->outstanding_cmds[h] =
284 					    NULL;
285 					break;
286 				}
287 			}
288 			spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
289 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
290 		}
291 		break;
292 	}
293 }
294 
295 static void qla2x00_async_login_sp_done(srb_t *sp, int res)
296 {
297 	struct scsi_qla_host *vha = sp->vha;
298 	struct srb_iocb *lio = &sp->u.iocb_cmd;
299 	struct event_arg ea;
300 
301 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
302 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
303 
304 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
305 
306 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
307 		memset(&ea, 0, sizeof(ea));
308 		ea.fcport = sp->fcport;
309 		ea.data[0] = lio->u.logio.data[0];
310 		ea.data[1] = lio->u.logio.data[1];
311 		ea.iop[0] = lio->u.logio.iop[0];
312 		ea.iop[1] = lio->u.logio.iop[1];
313 		ea.sp = sp;
314 		if (res)
315 			ea.data[0] = MBS_COMMAND_ERROR;
316 		qla24xx_handle_plogi_done_event(vha, &ea);
317 	}
318 
319 	/* ref: INIT */
320 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
321 }
322 
323 int
324 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
325     uint16_t *data)
326 {
327 	srb_t *sp;
328 	struct srb_iocb *lio;
329 	int rval = QLA_FUNCTION_FAILED;
330 
331 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
332 	    fcport->loop_id == FC_NO_LOOP_ID) {
333 		ql_log(ql_log_warn, vha, 0xffff,
334 		    "%s: %8phC - not sending command.\n",
335 		    __func__, fcport->port_name);
336 		return rval;
337 	}
338 
339 	/* ref: INIT */
340 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
341 	if (!sp)
342 		goto done;
343 
344 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
345 	fcport->flags |= FCF_ASYNC_SENT;
346 	fcport->logout_completed = 0;
347 
348 	sp->type = SRB_LOGIN_CMD;
349 	sp->name = "login";
350 	sp->gen1 = fcport->rscn_gen;
351 	sp->gen2 = fcport->login_gen;
352 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
353 			      qla2x00_async_login_sp_done);
354 
355 	lio = &sp->u.iocb_cmd;
356 	if (N2N_TOPO(fcport->vha->hw) && fcport_is_bigger(fcport)) {
357 		lio->u.logio.flags |= SRB_LOGIN_PRLI_ONLY;
358 	} else {
359 		if (vha->hw->flags.edif_enabled &&
360 		    DBELL_ACTIVE(vha)) {
361 			lio->u.logio.flags |=
362 				(SRB_LOGIN_FCSP | SRB_LOGIN_SKIP_PRLI);
363 		} else {
364 			lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
365 		}
366 	}
367 
368 	if (NVME_TARGET(vha->hw, fcport))
369 		lio->u.logio.flags |= SRB_LOGIN_SKIP_PRLI;
370 
371 	rval = qla2x00_start_sp(sp);
372 
373 	ql_dbg(ql_dbg_disc, vha, 0x2072,
374 	       "Async-login - %8phC hdl=%x, loopid=%x portid=%06x retries=%d %s.\n",
375 	       fcport->port_name, sp->handle, fcport->loop_id,
376 	       fcport->d_id.b24, fcport->login_retry,
377 	       lio->u.logio.flags & SRB_LOGIN_FCSP ? "FCSP" : "");
378 
379 	if (rval != QLA_SUCCESS) {
380 		fcport->flags |= FCF_LOGIN_NEEDED;
381 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
382 		goto done_free_sp;
383 	}
384 
385 	return rval;
386 
387 done_free_sp:
388 	/* ref: INIT */
389 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
390 	fcport->flags &= ~FCF_ASYNC_SENT;
391 done:
392 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
393 
394 	/*
395 	 * async login failed. Could be due to iocb/exchange resource
396 	 * being low. Set state DELETED for re-login process to start again.
397 	 */
398 	qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
399 	return rval;
400 }
401 
402 static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
403 {
404 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
405 	sp->fcport->login_gen++;
406 	qlt_logo_completion_handler(sp->fcport, sp->u.iocb_cmd.u.logio.data[0]);
407 	/* ref: INIT */
408 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
409 }
410 
411 int
412 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
413 {
414 	srb_t *sp;
415 	int rval = QLA_FUNCTION_FAILED;
416 
417 	fcport->flags |= FCF_ASYNC_SENT;
418 	/* ref: INIT */
419 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
420 	if (!sp)
421 		goto done;
422 
423 	sp->type = SRB_LOGOUT_CMD;
424 	sp->name = "logout";
425 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
426 			      qla2x00_async_logout_sp_done),
427 
428 	ql_dbg(ql_dbg_disc, vha, 0x2070,
429 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x %8phC explicit %d.\n",
430 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
431 		fcport->d_id.b.area, fcport->d_id.b.al_pa,
432 		fcport->port_name, fcport->explicit_logout);
433 
434 	rval = qla2x00_start_sp(sp);
435 	if (rval != QLA_SUCCESS)
436 		goto done_free_sp;
437 	return rval;
438 
439 done_free_sp:
440 	/* ref: INIT */
441 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
442 done:
443 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
444 	return rval;
445 }
446 
447 void
448 qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
449     uint16_t *data)
450 {
451 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
452 	/* Don't re-login in target mode */
453 	if (!fcport->tgt_session)
454 		qla2x00_mark_device_lost(vha, fcport, 1);
455 	qlt_logo_completion_handler(fcport, data[0]);
456 }
457 
458 static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
459 {
460 	struct srb_iocb *lio = &sp->u.iocb_cmd;
461 	struct scsi_qla_host *vha = sp->vha;
462 
463 	sp->fcport->flags &= ~FCF_ASYNC_ACTIVE;
464 	if (!test_bit(UNLOADING, &vha->dpc_flags))
465 		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
466 		    lio->u.logio.data);
467 	/* ref: INIT */
468 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
469 }
470 
471 int
472 qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
473 {
474 	srb_t *sp;
475 	int rval;
476 
477 	rval = QLA_FUNCTION_FAILED;
478 	/* ref: INIT */
479 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
480 	if (!sp)
481 		goto done;
482 
483 	sp->type = SRB_PRLO_CMD;
484 	sp->name = "prlo";
485 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
486 			      qla2x00_async_prlo_sp_done);
487 
488 	ql_dbg(ql_dbg_disc, vha, 0x2070,
489 	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
490 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
491 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
492 
493 	rval = qla2x00_start_sp(sp);
494 	if (rval != QLA_SUCCESS)
495 		goto done_free_sp;
496 
497 	return rval;
498 
499 done_free_sp:
500 	/* ref: INIT */
501 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
502 done:
503 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
504 	return rval;
505 }
506 
507 static
508 void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
509 {
510 	struct fc_port *fcport = ea->fcport;
511 
512 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
513 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
514 	    __func__, fcport->port_name, fcport->disc_state,
515 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
516 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
517 
518 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
519 		  ea->data[0]);
520 
521 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
522 		ql_dbg(ql_dbg_disc, vha, 0x2066,
523 		    "%s %8phC: adisc fail: post delete\n",
524 		    __func__, ea->fcport->port_name);
525 		/* deleted = 0 & logout_on_delete = force fw cleanup */
526 		fcport->deleted = 0;
527 		fcport->logout_on_delete = 1;
528 		qlt_schedule_sess_for_deletion(ea->fcport);
529 		return;
530 	}
531 
532 	if (ea->fcport->disc_state == DSC_DELETE_PEND)
533 		return;
534 
535 	if (ea->sp->gen2 != ea->fcport->login_gen) {
536 		/* target side must have changed it. */
537 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
538 		    "%s %8phC generation changed\n",
539 		    __func__, ea->fcport->port_name);
540 		return;
541 	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
542 		qla_rscn_replay(fcport);
543 		qlt_schedule_sess_for_deletion(fcport);
544 		return;
545 	}
546 
547 	__qla24xx_handle_gpdb_event(vha, ea);
548 }
549 
550 static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
551 {
552 	struct qla_work_evt *e;
553 
554 	e = qla2x00_alloc_work(vha, QLA_EVT_ELS_PLOGI);
555 	if (!e)
556 		return QLA_FUNCTION_FAILED;
557 
558 	e->u.fcport.fcport = fcport;
559 	fcport->flags |= FCF_ASYNC_ACTIVE;
560 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
561 	return qla2x00_post_work(vha, e);
562 }
563 
564 static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
565 {
566 	struct scsi_qla_host *vha = sp->vha;
567 	struct event_arg ea;
568 	struct srb_iocb *lio = &sp->u.iocb_cmd;
569 
570 	ql_dbg(ql_dbg_disc, vha, 0x2066,
571 	    "Async done-%s res %x %8phC\n",
572 	    sp->name, res, sp->fcport->port_name);
573 
574 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
575 
576 	memset(&ea, 0, sizeof(ea));
577 	ea.rc = res;
578 	ea.data[0] = lio->u.logio.data[0];
579 	ea.data[1] = lio->u.logio.data[1];
580 	ea.iop[0] = lio->u.logio.iop[0];
581 	ea.iop[1] = lio->u.logio.iop[1];
582 	ea.fcport = sp->fcport;
583 	ea.sp = sp;
584 	if (res)
585 		ea.data[0] = MBS_COMMAND_ERROR;
586 
587 	qla24xx_handle_adisc_event(vha, &ea);
588 	/* ref: INIT */
589 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
590 }
591 
592 int
593 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
594     uint16_t *data)
595 {
596 	srb_t *sp;
597 	struct srb_iocb *lio;
598 	int rval = QLA_FUNCTION_FAILED;
599 
600 	if (IS_SESSION_DELETED(fcport)) {
601 		ql_log(ql_log_warn, vha, 0xffff,
602 		       "%s: %8phC is being delete - not sending command.\n",
603 		       __func__, fcport->port_name);
604 		fcport->flags &= ~FCF_ASYNC_ACTIVE;
605 		return rval;
606 	}
607 
608 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
609 		return rval;
610 
611 	fcport->flags |= FCF_ASYNC_SENT;
612 	/* ref: INIT */
613 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
614 	if (!sp)
615 		goto done;
616 
617 	sp->type = SRB_ADISC_CMD;
618 	sp->name = "adisc";
619 	sp->gen1 = fcport->rscn_gen;
620 	sp->gen2 = fcport->login_gen;
621 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
622 			      qla2x00_async_adisc_sp_done);
623 
624 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED) {
625 		lio = &sp->u.iocb_cmd;
626 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
627 	}
628 
629 	ql_dbg(ql_dbg_disc, vha, 0x206f,
630 	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
631 	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
632 
633 	rval = qla2x00_start_sp(sp);
634 	if (rval != QLA_SUCCESS)
635 		goto done_free_sp;
636 
637 	return rval;
638 
639 done_free_sp:
640 	/* ref: INIT */
641 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
642 done:
643 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
644 	qla2x00_post_async_adisc_work(vha, fcport, data);
645 	return rval;
646 }
647 
648 static bool qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
649 {
650 	struct qla_hw_data *ha = vha->hw;
651 
652 	if (IS_FWI2_CAPABLE(ha))
653 		return loop_id > NPH_LAST_HANDLE;
654 
655 	return (loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
656 		loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST;
657 }
658 
659 /**
660  * qla2x00_find_new_loop_id - scan through our port list and find a new usable loop ID
661  * @vha: adapter state pointer.
662  * @dev: port structure pointer.
663  *
664  * Returns:
665  *	qla2x00 local function return status code.
666  *
667  * Context:
668  *	Kernel context.
669  */
670 static int qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
671 {
672 	int	rval;
673 	struct qla_hw_data *ha = vha->hw;
674 	unsigned long flags = 0;
675 
676 	rval = QLA_SUCCESS;
677 
678 	spin_lock_irqsave(&ha->vport_slock, flags);
679 
680 	dev->loop_id = find_first_zero_bit(ha->loop_id_map, LOOPID_MAP_SIZE);
681 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
682 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
683 		dev->loop_id = FC_NO_LOOP_ID;
684 		rval = QLA_FUNCTION_FAILED;
685 	} else {
686 		set_bit(dev->loop_id, ha->loop_id_map);
687 	}
688 	spin_unlock_irqrestore(&ha->vport_slock, flags);
689 
690 	if (rval == QLA_SUCCESS)
691 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
692 		       "Assigning new loopid=%x, portid=%x.\n",
693 		       dev->loop_id, dev->d_id.b24);
694 	else
695 		ql_log(ql_log_warn, dev->vha, 0x2087,
696 		       "No loop_id's available, portid=%x.\n",
697 		       dev->d_id.b24);
698 
699 	return rval;
700 }
701 
702 void qla2x00_clear_loop_id(fc_port_t *fcport)
703 {
704 	struct qla_hw_data *ha = fcport->vha->hw;
705 
706 	if (fcport->loop_id == FC_NO_LOOP_ID ||
707 	    qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
708 		return;
709 
710 	clear_bit(fcport->loop_id, ha->loop_id_map);
711 	fcport->loop_id = FC_NO_LOOP_ID;
712 }
713 
714 static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
715 	struct event_arg *ea)
716 {
717 	fc_port_t *fcport, *conflict_fcport;
718 	struct get_name_list_extended *e;
719 	u16 i, n, found = 0, loop_id;
720 	port_id_t id;
721 	u64 wwn;
722 	u16 data[2];
723 	u8 current_login_state, nvme_cls;
724 
725 	fcport = ea->fcport;
726 	ql_dbg(ql_dbg_disc, vha, 0xffff,
727 	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d edif %d\n",
728 	    __func__, fcport->port_name, fcport->disc_state,
729 	    fcport->fw_login_state, ea->rc,
730 	    fcport->login_gen, fcport->last_login_gen,
731 	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id, fcport->edif.enable);
732 
733 	if (fcport->disc_state == DSC_DELETE_PEND)
734 		return;
735 
736 	if (ea->rc) { /* rval */
737 		if (fcport->login_retry == 0) {
738 			ql_dbg(ql_dbg_disc, vha, 0x20de,
739 			    "GNL failed Port login retry %8phN, retry cnt=%d.\n",
740 			    fcport->port_name, fcport->login_retry);
741 		}
742 		return;
743 	}
744 
745 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
746 		qla_rscn_replay(fcport);
747 		qlt_schedule_sess_for_deletion(fcport);
748 		return;
749 	} else if (fcport->last_login_gen != fcport->login_gen) {
750 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
751 		    "%s %8phC login gen changed\n",
752 		    __func__, fcport->port_name);
753 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
754 		return;
755 	}
756 
757 	n = ea->data[0] / sizeof(struct get_name_list_extended);
758 
759 	ql_dbg(ql_dbg_disc, vha, 0x20e1,
760 	    "%s %d %8phC n %d %02x%02x%02x lid %d \n",
761 	    __func__, __LINE__, fcport->port_name, n,
762 	    fcport->d_id.b.domain, fcport->d_id.b.area,
763 	    fcport->d_id.b.al_pa, fcport->loop_id);
764 
765 	for (i = 0; i < n; i++) {
766 		e = &vha->gnl.l[i];
767 		wwn = wwn_to_u64(e->port_name);
768 		id.b.domain = e->port_id[2];
769 		id.b.area = e->port_id[1];
770 		id.b.al_pa = e->port_id[0];
771 		id.b.rsvd_1 = 0;
772 
773 		if (memcmp((u8 *)&wwn, fcport->port_name, WWN_SIZE))
774 			continue;
775 
776 		if (IS_SW_RESV_ADDR(id))
777 			continue;
778 
779 		found = 1;
780 
781 		loop_id = le16_to_cpu(e->nport_handle);
782 		loop_id = (loop_id & 0x7fff);
783 		nvme_cls = e->current_login_state >> 4;
784 		current_login_state = e->current_login_state & 0xf;
785 
786 		if (PRLI_PHASE(nvme_cls)) {
787 			current_login_state = nvme_cls;
788 			fcport->fc4_type &= ~FS_FC4TYPE_FCP;
789 			fcport->fc4_type |= FS_FC4TYPE_NVME;
790 		} else if (PRLI_PHASE(current_login_state)) {
791 			fcport->fc4_type |= FS_FC4TYPE_FCP;
792 			fcport->fc4_type &= ~FS_FC4TYPE_NVME;
793 		}
794 
795 		ql_dbg(ql_dbg_disc, vha, 0x20e2,
796 		    "%s found %8phC CLS [%x|%x] fc4_type %d ID[%06x|%06x] lid[%d|%d]\n",
797 		    __func__, fcport->port_name,
798 		    e->current_login_state, fcport->fw_login_state,
799 		    fcport->fc4_type, id.b24, fcport->d_id.b24,
800 		    loop_id, fcport->loop_id);
801 
802 		switch (fcport->disc_state) {
803 		case DSC_DELETE_PEND:
804 		case DSC_DELETED:
805 			break;
806 		default:
807 			if ((id.b24 != fcport->d_id.b24 &&
808 			    fcport->d_id.b24 &&
809 			    fcport->loop_id != FC_NO_LOOP_ID) ||
810 			    (fcport->loop_id != FC_NO_LOOP_ID &&
811 				fcport->loop_id != loop_id)) {
812 				ql_dbg(ql_dbg_disc, vha, 0x20e3,
813 				    "%s %d %8phC post del sess\n",
814 				    __func__, __LINE__, fcport->port_name);
815 				if (fcport->n2n_flag)
816 					fcport->d_id.b24 = 0;
817 				qlt_schedule_sess_for_deletion(fcport);
818 				return;
819 			}
820 			break;
821 		}
822 
823 		fcport->loop_id = loop_id;
824 		if (fcport->n2n_flag)
825 			fcport->d_id.b24 = id.b24;
826 
827 		wwn = wwn_to_u64(fcport->port_name);
828 		qlt_find_sess_invalidate_other(vha, wwn,
829 			id, loop_id, &conflict_fcport);
830 
831 		if (conflict_fcport) {
832 			/*
833 			 * Another share fcport share the same loop_id &
834 			 * nport id. Conflict fcport needs to finish
835 			 * cleanup before this fcport can proceed to login.
836 			 */
837 			conflict_fcport->conflict = fcport;
838 			fcport->login_pause = 1;
839 		}
840 
841 		switch (vha->hw->current_topology) {
842 		default:
843 			switch (current_login_state) {
844 			case DSC_LS_PRLI_COMP:
845 				ql_dbg(ql_dbg_disc,
846 				    vha, 0x20e4, "%s %d %8phC post gpdb\n",
847 				    __func__, __LINE__, fcport->port_name);
848 
849 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
850 					fcport->port_type = FCT_INITIATOR;
851 				else
852 					fcport->port_type = FCT_TARGET;
853 				data[0] = data[1] = 0;
854 				qla2x00_post_async_adisc_work(vha, fcport,
855 				    data);
856 				break;
857 			case DSC_LS_PLOGI_COMP:
858 				if (vha->hw->flags.edif_enabled) {
859 					/* check to see if App support Secure */
860 					qla24xx_post_gpdb_work(vha, fcport, 0);
861 					break;
862 				}
863 				fallthrough;
864 			case DSC_LS_PORT_UNAVAIL:
865 			default:
866 				if (fcport->loop_id == FC_NO_LOOP_ID) {
867 					qla2x00_find_new_loop_id(vha, fcport);
868 					fcport->fw_login_state =
869 					    DSC_LS_PORT_UNAVAIL;
870 				}
871 				ql_dbg(ql_dbg_disc, vha, 0x20e5,
872 				    "%s %d %8phC\n", __func__, __LINE__,
873 				    fcport->port_name);
874 				qla24xx_fcport_handle_login(vha, fcport);
875 				break;
876 			}
877 			break;
878 		case ISP_CFG_N:
879 			fcport->fw_login_state = current_login_state;
880 			fcport->d_id = id;
881 			switch (current_login_state) {
882 			case DSC_LS_PRLI_PEND:
883 				/*
884 				 * In the middle of PRLI. Let it finish.
885 				 * Allow relogin code to recheck state again
886 				 * with GNL. Push disc_state back to DELETED
887 				 * so GNL can go out again
888 				 */
889 				qla2x00_set_fcport_disc_state(fcport,
890 				    DSC_DELETED);
891 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
892 				break;
893 			case DSC_LS_PRLI_COMP:
894 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
895 					fcport->port_type = FCT_INITIATOR;
896 				else
897 					fcport->port_type = FCT_TARGET;
898 
899 				data[0] = data[1] = 0;
900 				qla2x00_post_async_adisc_work(vha, fcport,
901 				    data);
902 				break;
903 			case DSC_LS_PLOGI_COMP:
904 				if (vha->hw->flags.edif_enabled &&
905 				    DBELL_ACTIVE(vha)) {
906 					/* check to see if App support secure or not */
907 					qla24xx_post_gpdb_work(vha, fcport, 0);
908 					break;
909 				}
910 				if (fcport_is_bigger(fcport)) {
911 					/* local adapter is smaller */
912 					if (fcport->loop_id != FC_NO_LOOP_ID)
913 						qla2x00_clear_loop_id(fcport);
914 
915 					fcport->loop_id = loop_id;
916 					qla24xx_fcport_handle_login(vha,
917 					    fcport);
918 					break;
919 				}
920 				fallthrough;
921 			default:
922 				if (fcport_is_smaller(fcport)) {
923 					/* local adapter is bigger */
924 					if (fcport->loop_id != FC_NO_LOOP_ID)
925 						qla2x00_clear_loop_id(fcport);
926 
927 					fcport->loop_id = loop_id;
928 					qla24xx_fcport_handle_login(vha,
929 					    fcport);
930 				}
931 				break;
932 			}
933 			break;
934 		} /* switch (ha->current_topology) */
935 	}
936 
937 	if (!found) {
938 		switch (vha->hw->current_topology) {
939 		case ISP_CFG_F:
940 		case ISP_CFG_FL:
941 			for (i = 0; i < n; i++) {
942 				e = &vha->gnl.l[i];
943 				id.b.domain = e->port_id[0];
944 				id.b.area = e->port_id[1];
945 				id.b.al_pa = e->port_id[2];
946 				id.b.rsvd_1 = 0;
947 				loop_id = le16_to_cpu(e->nport_handle);
948 
949 				if (fcport->d_id.b24 == id.b24) {
950 					conflict_fcport =
951 					    qla2x00_find_fcport_by_wwpn(vha,
952 						e->port_name, 0);
953 					if (conflict_fcport) {
954 						ql_dbg(ql_dbg_disc + ql_dbg_verbose,
955 						    vha, 0x20e5,
956 						    "%s %d %8phC post del sess\n",
957 						    __func__, __LINE__,
958 						    conflict_fcport->port_name);
959 						qlt_schedule_sess_for_deletion
960 							(conflict_fcport);
961 					}
962 				}
963 				/*
964 				 * FW already picked this loop id for
965 				 * another fcport
966 				 */
967 				if (fcport->loop_id == loop_id)
968 					fcport->loop_id = FC_NO_LOOP_ID;
969 			}
970 			qla24xx_fcport_handle_login(vha, fcport);
971 			break;
972 		case ISP_CFG_N:
973 			qla2x00_set_fcport_disc_state(fcport, DSC_DELETED);
974 			if (time_after_eq(jiffies, fcport->dm_login_expire)) {
975 				if (fcport->n2n_link_reset_cnt < 2) {
976 					fcport->n2n_link_reset_cnt++;
977 					/*
978 					 * remote port is not sending PLOGI.
979 					 * Reset link to kick start his state
980 					 * machine
981 					 */
982 					set_bit(N2N_LINK_RESET,
983 					    &vha->dpc_flags);
984 				} else {
985 					if (fcport->n2n_chip_reset < 1) {
986 						ql_log(ql_log_info, vha, 0x705d,
987 						    "Chip reset to bring laser down");
988 						set_bit(ISP_ABORT_NEEDED,
989 						    &vha->dpc_flags);
990 						fcport->n2n_chip_reset++;
991 					} else {
992 						ql_log(ql_log_info, vha, 0x705d,
993 						    "Remote port %8ph is not coming back\n",
994 						    fcport->port_name);
995 						fcport->scan_state = 0;
996 					}
997 				}
998 				qla2xxx_wake_dpc(vha);
999 			} else {
1000 				/*
1001 				 * report port suppose to do PLOGI. Give him
1002 				 * more time. FW will catch it.
1003 				 */
1004 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1005 			}
1006 			break;
1007 		case ISP_CFG_NL:
1008 			qla24xx_fcport_handle_login(vha, fcport);
1009 			break;
1010 		default:
1011 			break;
1012 		}
1013 	}
1014 } /* gnl_event */
1015 
1016 static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
1017 {
1018 	struct scsi_qla_host *vha = sp->vha;
1019 	unsigned long flags;
1020 	struct fc_port *fcport = NULL, *tf;
1021 	u16 i, n = 0, loop_id;
1022 	struct event_arg ea;
1023 	struct get_name_list_extended *e;
1024 	u64 wwn;
1025 	struct list_head h;
1026 	bool found = false;
1027 
1028 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
1029 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
1030 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
1031 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
1032 
1033 
1034 	sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
1035 	memset(&ea, 0, sizeof(ea));
1036 	ea.sp = sp;
1037 	ea.rc = res;
1038 
1039 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
1040 	    sizeof(struct get_name_list_extended)) {
1041 		n = sp->u.iocb_cmd.u.mbx.in_mb[1] /
1042 		    sizeof(struct get_name_list_extended);
1043 		ea.data[0] = sp->u.iocb_cmd.u.mbx.in_mb[1]; /* amnt xfered */
1044 	}
1045 
1046 	for (i = 0; i < n; i++) {
1047 		e = &vha->gnl.l[i];
1048 		loop_id = le16_to_cpu(e->nport_handle);
1049 		/* mask out reserve bit */
1050 		loop_id = (loop_id & 0x7fff);
1051 		set_bit(loop_id, vha->hw->loop_id_map);
1052 		wwn = wwn_to_u64(e->port_name);
1053 
1054 		ql_dbg(ql_dbg_disc, vha, 0x20e8,
1055 		    "%s %8phC %02x:%02x:%02x CLS %x/%x lid %x \n",
1056 		    __func__, &wwn, e->port_id[2], e->port_id[1],
1057 		    e->port_id[0], e->current_login_state, e->last_login_state,
1058 		    (loop_id & 0x7fff));
1059 	}
1060 
1061 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1062 
1063 	INIT_LIST_HEAD(&h);
1064 	fcport = tf = NULL;
1065 	if (!list_empty(&vha->gnl.fcports))
1066 		list_splice_init(&vha->gnl.fcports, &h);
1067 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1068 
1069 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
1070 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1071 		list_del_init(&fcport->gnl_entry);
1072 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1073 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1074 		ea.fcport = fcport;
1075 
1076 		qla24xx_handle_gnl_done_event(vha, &ea);
1077 	}
1078 
1079 	/* create new fcport if fw has knowledge of new sessions */
1080 	for (i = 0; i < n; i++) {
1081 		port_id_t id;
1082 		u64 wwnn;
1083 
1084 		e = &vha->gnl.l[i];
1085 		wwn = wwn_to_u64(e->port_name);
1086 
1087 		found = false;
1088 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
1089 			if (!memcmp((u8 *)&wwn, fcport->port_name,
1090 			    WWN_SIZE)) {
1091 				found = true;
1092 				break;
1093 			}
1094 		}
1095 
1096 		id.b.domain = e->port_id[2];
1097 		id.b.area = e->port_id[1];
1098 		id.b.al_pa = e->port_id[0];
1099 		id.b.rsvd_1 = 0;
1100 
1101 		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
1102 			ql_dbg(ql_dbg_disc, vha, 0x2065,
1103 			    "%s %d %8phC %06x post new sess\n",
1104 			    __func__, __LINE__, (u8 *)&wwn, id.b24);
1105 			wwnn = wwn_to_u64(e->node_name);
1106 			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
1107 			    (u8 *)&wwnn, NULL, 0);
1108 		}
1109 	}
1110 
1111 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1112 	vha->gnl.sent = 0;
1113 	if (!list_empty(&vha->gnl.fcports)) {
1114 		/* retrigger gnl */
1115 		list_for_each_entry_safe(fcport, tf, &vha->gnl.fcports,
1116 		    gnl_entry) {
1117 			list_del_init(&fcport->gnl_entry);
1118 			fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1119 			if (qla24xx_post_gnl_work(vha, fcport) == QLA_SUCCESS)
1120 				break;
1121 		}
1122 	}
1123 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1124 
1125 	/* ref: INIT */
1126 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1127 }
1128 
1129 int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
1130 {
1131 	srb_t *sp;
1132 	int rval = QLA_FUNCTION_FAILED;
1133 	unsigned long flags;
1134 	u16 *mb;
1135 
1136 	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
1137 		return rval;
1138 
1139 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
1140 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
1141 
1142 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1143 	fcport->flags |= FCF_ASYNC_SENT;
1144 	qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1145 	fcport->last_rscn_gen = fcport->rscn_gen;
1146 	fcport->last_login_gen = fcport->login_gen;
1147 
1148 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
1149 	if (vha->gnl.sent) {
1150 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1151 		return QLA_SUCCESS;
1152 	}
1153 	vha->gnl.sent = 1;
1154 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1155 
1156 	/* ref: INIT */
1157 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1158 	if (!sp)
1159 		goto done;
1160 
1161 	sp->type = SRB_MB_IOCB;
1162 	sp->name = "gnlist";
1163 	sp->gen1 = fcport->rscn_gen;
1164 	sp->gen2 = fcport->login_gen;
1165 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
1166 			      qla24xx_async_gnl_sp_done);
1167 
1168 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1169 	mb[0] = MBC_PORT_NODE_NAME_LIST;
1170 	mb[1] = BIT_2 | BIT_3;
1171 	mb[2] = MSW(vha->gnl.ldma);
1172 	mb[3] = LSW(vha->gnl.ldma);
1173 	mb[6] = MSW(MSD(vha->gnl.ldma));
1174 	mb[7] = LSW(MSD(vha->gnl.ldma));
1175 	mb[8] = vha->gnl.size;
1176 	mb[9] = vha->vp_idx;
1177 
1178 	ql_dbg(ql_dbg_disc, vha, 0x20da,
1179 	    "Async-%s - OUT WWPN %8phC hndl %x\n",
1180 	    sp->name, fcport->port_name, sp->handle);
1181 
1182 	rval = qla2x00_start_sp(sp);
1183 	if (rval != QLA_SUCCESS)
1184 		goto done_free_sp;
1185 
1186 	return rval;
1187 
1188 done_free_sp:
1189 	/* ref: INIT */
1190 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1191 done:
1192 	fcport->flags &= ~(FCF_ASYNC_ACTIVE | FCF_ASYNC_SENT);
1193 	return rval;
1194 }
1195 
1196 int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1197 {
1198 	struct qla_work_evt *e;
1199 
1200 	e = qla2x00_alloc_work(vha, QLA_EVT_GNL);
1201 	if (!e)
1202 		return QLA_FUNCTION_FAILED;
1203 
1204 	e->u.fcport.fcport = fcport;
1205 	fcport->flags |= FCF_ASYNC_ACTIVE;
1206 	return qla2x00_post_work(vha, e);
1207 }
1208 
1209 static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
1210 {
1211 	struct scsi_qla_host *vha = sp->vha;
1212 	struct qla_hw_data *ha = vha->hw;
1213 	fc_port_t *fcport = sp->fcport;
1214 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
1215 	struct event_arg ea;
1216 
1217 	ql_dbg(ql_dbg_disc, vha, 0x20db,
1218 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
1219 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
1220 
1221 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
1222 
1223 	if (res == QLA_FUNCTION_TIMEOUT)
1224 		goto done;
1225 
1226 	memset(&ea, 0, sizeof(ea));
1227 	ea.fcport = fcport;
1228 	ea.sp = sp;
1229 
1230 	qla24xx_handle_gpdb_event(vha, &ea);
1231 
1232 done:
1233 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
1234 		sp->u.iocb_cmd.u.mbx.in_dma);
1235 
1236 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1237 }
1238 
1239 int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
1240 {
1241 	struct qla_work_evt *e;
1242 
1243 	if (vha->host->active_mode == MODE_TARGET)
1244 		return QLA_FUNCTION_FAILED;
1245 
1246 	e = qla2x00_alloc_work(vha, QLA_EVT_PRLI);
1247 	if (!e)
1248 		return QLA_FUNCTION_FAILED;
1249 
1250 	e->u.fcport.fcport = fcport;
1251 
1252 	return qla2x00_post_work(vha, e);
1253 }
1254 
1255 static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
1256 {
1257 	struct scsi_qla_host *vha = sp->vha;
1258 	struct srb_iocb *lio = &sp->u.iocb_cmd;
1259 	struct event_arg ea;
1260 
1261 	ql_dbg(ql_dbg_disc, vha, 0x2129,
1262 	    "%s %8phC res %x\n", __func__,
1263 	    sp->fcport->port_name, res);
1264 
1265 	sp->fcport->flags &= ~FCF_ASYNC_SENT;
1266 
1267 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
1268 		memset(&ea, 0, sizeof(ea));
1269 		ea.fcport = sp->fcport;
1270 		ea.data[0] = lio->u.logio.data[0];
1271 		ea.data[1] = lio->u.logio.data[1];
1272 		ea.iop[0] = lio->u.logio.iop[0];
1273 		ea.iop[1] = lio->u.logio.iop[1];
1274 		ea.sp = sp;
1275 		if (res == QLA_OS_TIMER_EXPIRED)
1276 			ea.data[0] = QLA_OS_TIMER_EXPIRED;
1277 		else if (res)
1278 			ea.data[0] = MBS_COMMAND_ERROR;
1279 
1280 		qla24xx_handle_prli_done_event(vha, &ea);
1281 	}
1282 
1283 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1284 }
1285 
1286 int
1287 qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
1288 {
1289 	srb_t *sp;
1290 	struct srb_iocb *lio;
1291 	int rval = QLA_FUNCTION_FAILED;
1292 
1293 	if (!vha->flags.online) {
1294 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1295 		    __func__, __LINE__, fcport->port_name);
1296 		return rval;
1297 	}
1298 
1299 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND ||
1300 	    fcport->fw_login_state == DSC_LS_PRLI_PEND) &&
1301 	    qla_dual_mode_enabled(vha)) {
1302 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s %d %8phC exit\n",
1303 		    __func__, __LINE__, fcport->port_name);
1304 		return rval;
1305 	}
1306 
1307 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1308 	if (!sp)
1309 		return rval;
1310 
1311 	fcport->flags |= FCF_ASYNC_SENT;
1312 	fcport->logout_completed = 0;
1313 
1314 	sp->type = SRB_PRLI_CMD;
1315 	sp->name = "prli";
1316 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
1317 			      qla2x00_async_prli_sp_done);
1318 
1319 	lio = &sp->u.iocb_cmd;
1320 	lio->u.logio.flags = 0;
1321 
1322 	if (NVME_TARGET(vha->hw, fcport))
1323 		lio->u.logio.flags |= SRB_LOGIN_NVME_PRLI;
1324 
1325 	ql_dbg(ql_dbg_disc, vha, 0x211b,
1326 	    "Async-prli - %8phC hdl=%x, loopid=%x portid=%06x retries=%d fc4type %x priority %x %s.\n",
1327 	    fcport->port_name, sp->handle, fcport->loop_id, fcport->d_id.b24,
1328 	    fcport->login_retry, fcport->fc4_type, vha->hw->fc4_type_priority,
1329 	    NVME_TARGET(vha->hw, fcport) ? "nvme" : "fcp");
1330 
1331 	rval = qla2x00_start_sp(sp);
1332 	if (rval != QLA_SUCCESS) {
1333 		fcport->flags |= FCF_LOGIN_NEEDED;
1334 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1335 		goto done_free_sp;
1336 	}
1337 
1338 	return rval;
1339 
1340 done_free_sp:
1341 	/* ref: INIT */
1342 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1343 	fcport->flags &= ~FCF_ASYNC_SENT;
1344 	return rval;
1345 }
1346 
1347 int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1348 {
1349 	struct qla_work_evt *e;
1350 
1351 	e = qla2x00_alloc_work(vha, QLA_EVT_GPDB);
1352 	if (!e)
1353 		return QLA_FUNCTION_FAILED;
1354 
1355 	e->u.fcport.fcport = fcport;
1356 	e->u.fcport.opt = opt;
1357 	fcport->flags |= FCF_ASYNC_ACTIVE;
1358 	return qla2x00_post_work(vha, e);
1359 }
1360 
1361 int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
1362 {
1363 	srb_t *sp;
1364 	struct srb_iocb *mbx;
1365 	int rval = QLA_FUNCTION_FAILED;
1366 	u16 *mb;
1367 	dma_addr_t pd_dma;
1368 	struct port_database_24xx *pd;
1369 	struct qla_hw_data *ha = vha->hw;
1370 
1371 	if (IS_SESSION_DELETED(fcport)) {
1372 		ql_log(ql_log_warn, vha, 0xffff,
1373 		       "%s: %8phC is being delete - not sending command.\n",
1374 		       __func__, fcport->port_name);
1375 		fcport->flags &= ~FCF_ASYNC_ACTIVE;
1376 		return rval;
1377 	}
1378 
1379 	if (!vha->flags.online || fcport->flags & FCF_ASYNC_SENT) {
1380 		ql_log(ql_log_warn, vha, 0xffff,
1381 		    "%s: %8phC online %d flags %x - not sending command.\n",
1382 		    __func__, fcport->port_name, vha->flags.online, fcport->flags);
1383 		goto done;
1384 	}
1385 
1386 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
1387 	if (!sp)
1388 		goto done;
1389 
1390 	qla2x00_set_fcport_disc_state(fcport, DSC_GPDB);
1391 
1392 	fcport->flags |= FCF_ASYNC_SENT;
1393 	sp->type = SRB_MB_IOCB;
1394 	sp->name = "gpdb";
1395 	sp->gen1 = fcport->rscn_gen;
1396 	sp->gen2 = fcport->login_gen;
1397 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2,
1398 			      qla24xx_async_gpdb_sp_done);
1399 
1400 	pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
1401 	if (pd == NULL) {
1402 		ql_log(ql_log_warn, vha, 0xd043,
1403 		    "Failed to allocate port database structure.\n");
1404 		goto done_free_sp;
1405 	}
1406 
1407 	mb = sp->u.iocb_cmd.u.mbx.out_mb;
1408 	mb[0] = MBC_GET_PORT_DATABASE;
1409 	mb[1] = fcport->loop_id;
1410 	mb[2] = MSW(pd_dma);
1411 	mb[3] = LSW(pd_dma);
1412 	mb[6] = MSW(MSD(pd_dma));
1413 	mb[7] = LSW(MSD(pd_dma));
1414 	mb[9] = vha->vp_idx;
1415 	mb[10] = opt;
1416 
1417 	mbx = &sp->u.iocb_cmd;
1418 	mbx->u.mbx.in = (void *)pd;
1419 	mbx->u.mbx.in_dma = pd_dma;
1420 
1421 	ql_dbg(ql_dbg_disc, vha, 0x20dc,
1422 	    "Async-%s %8phC hndl %x opt %x\n",
1423 	    sp->name, fcport->port_name, sp->handle, opt);
1424 
1425 	rval = qla2x00_start_sp(sp);
1426 	if (rval != QLA_SUCCESS)
1427 		goto done_free_sp;
1428 	return rval;
1429 
1430 done_free_sp:
1431 	if (pd)
1432 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
1433 
1434 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
1435 	fcport->flags &= ~FCF_ASYNC_SENT;
1436 done:
1437 	fcport->flags &= ~FCF_ASYNC_ACTIVE;
1438 	qla24xx_post_gpdb_work(vha, fcport, opt);
1439 	return rval;
1440 }
1441 
1442 static
1443 void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1444 {
1445 	unsigned long flags;
1446 
1447 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1448 	ea->fcport->login_gen++;
1449 	ea->fcport->deleted = 0;
1450 	ea->fcport->logout_on_delete = 1;
1451 
1452 	if (!ea->fcport->login_succ && !IS_SW_RESV_ADDR(ea->fcport->d_id)) {
1453 		vha->fcport_count++;
1454 		ea->fcport->login_succ = 1;
1455 
1456 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1457 		qla24xx_sched_upd_fcport(ea->fcport);
1458 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
1459 	} else if (ea->fcport->login_succ) {
1460 		/*
1461 		 * We have an existing session. A late RSCN delivery
1462 		 * must have triggered the session to be re-validate.
1463 		 * Session is still valid.
1464 		 */
1465 		ql_dbg(ql_dbg_disc, vha, 0x20d6,
1466 		    "%s %d %8phC session revalidate success\n",
1467 		    __func__, __LINE__, ea->fcport->port_name);
1468 		qla2x00_set_fcport_disc_state(ea->fcport, DSC_LOGIN_COMPLETE);
1469 	}
1470 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
1471 }
1472 
1473 static int	qla_chk_secure_login(scsi_qla_host_t	*vha, fc_port_t *fcport,
1474 	struct port_database_24xx *pd)
1475 {
1476 	int rc = 0;
1477 
1478 	if (pd->secure_login) {
1479 		ql_dbg(ql_dbg_disc, vha, 0x104d,
1480 		    "Secure Login established on %8phC\n",
1481 		    fcport->port_name);
1482 		fcport->flags |= FCF_FCSP_DEVICE;
1483 	} else {
1484 		ql_dbg(ql_dbg_disc, vha, 0x104d,
1485 		    "non-Secure Login %8phC",
1486 		    fcport->port_name);
1487 		fcport->flags &= ~FCF_FCSP_DEVICE;
1488 	}
1489 	if (vha->hw->flags.edif_enabled) {
1490 		if (fcport->flags & FCF_FCSP_DEVICE) {
1491 			qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_AUTH_PEND);
1492 			/* Start edif prli timer & ring doorbell for app */
1493 			fcport->edif.rx_sa_set = 0;
1494 			fcport->edif.tx_sa_set = 0;
1495 			fcport->edif.rx_sa_pending = 0;
1496 			fcport->edif.tx_sa_pending = 0;
1497 
1498 			qla2x00_post_aen_work(vha, FCH_EVT_PORT_ONLINE,
1499 			    fcport->d_id.b24);
1500 
1501 			if (DBELL_ACTIVE(vha)) {
1502 				ql_dbg(ql_dbg_disc, vha, 0x20ef,
1503 				    "%s %d %8phC EDIF: post DB_AUTH: AUTH needed\n",
1504 				    __func__, __LINE__, fcport->port_name);
1505 				fcport->edif.app_sess_online = 1;
1506 
1507 				qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED,
1508 				    fcport->d_id.b24, 0, fcport);
1509 			}
1510 
1511 			rc = 1;
1512 		} else if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
1513 			ql_dbg(ql_dbg_disc, vha, 0x2117,
1514 			    "%s %d %8phC post prli\n",
1515 			    __func__, __LINE__, fcport->port_name);
1516 			qla24xx_post_prli_work(vha, fcport);
1517 			rc = 1;
1518 		}
1519 	}
1520 	return rc;
1521 }
1522 
1523 static
1524 void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
1525 {
1526 	fc_port_t *fcport = ea->fcport;
1527 	struct port_database_24xx *pd;
1528 	struct srb *sp = ea->sp;
1529 	uint8_t	ls;
1530 
1531 	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
1532 
1533 	fcport->flags &= ~FCF_ASYNC_SENT;
1534 
1535 	ql_dbg(ql_dbg_disc, vha, 0x20d2,
1536 	    "%s %8phC DS %d LS %x fc4_type %x rc %x\n", __func__,
1537 	    fcport->port_name, fcport->disc_state, pd->current_login_state,
1538 	    fcport->fc4_type, ea->rc);
1539 
1540 	if (fcport->disc_state == DSC_DELETE_PEND) {
1541 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC\n",
1542 		       __func__, __LINE__, fcport->port_name);
1543 		return;
1544 	}
1545 
1546 	if (NVME_TARGET(vha->hw, fcport))
1547 		ls = pd->current_login_state >> 4;
1548 	else
1549 		ls = pd->current_login_state & 0xf;
1550 
1551 	if (ea->sp->gen2 != fcport->login_gen) {
1552 		/* target side must have changed it. */
1553 
1554 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
1555 		    "%s %8phC generation changed\n",
1556 		    __func__, fcport->port_name);
1557 		return;
1558 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
1559 		qla_rscn_replay(fcport);
1560 		qlt_schedule_sess_for_deletion(fcport);
1561 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
1562 		       __func__, __LINE__, fcport->port_name, ls);
1563 		return;
1564 	}
1565 
1566 	switch (ls) {
1567 	case PDS_PRLI_COMPLETE:
1568 		__qla24xx_parse_gpdb(vha, fcport, pd);
1569 		break;
1570 	case PDS_PLOGI_COMPLETE:
1571 		if (qla_chk_secure_login(vha, fcport, pd)) {
1572 			ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
1573 			       __func__, __LINE__, fcport->port_name, ls);
1574 			return;
1575 		}
1576 		fallthrough;
1577 	case PDS_PLOGI_PENDING:
1578 	case PDS_PRLI_PENDING:
1579 	case PDS_PRLI2_PENDING:
1580 		/* Set discovery state back to GNL to Relogin attempt */
1581 		if (qla_dual_mode_enabled(vha) ||
1582 		    qla_ini_mode_enabled(vha)) {
1583 			qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
1584 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1585 		}
1586 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC, ls %x\n",
1587 		       __func__, __LINE__, fcport->port_name, ls);
1588 		return;
1589 	case PDS_LOGO_PENDING:
1590 	case PDS_PORT_UNAVAILABLE:
1591 	default:
1592 		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
1593 		    __func__, __LINE__, fcport->port_name);
1594 		qlt_schedule_sess_for_deletion(fcport);
1595 		return;
1596 	}
1597 	__qla24xx_handle_gpdb_event(vha, ea);
1598 } /* gpdb event */
1599 
1600 static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1601 {
1602 	u8 login = 0;
1603 	int rc;
1604 
1605 	ql_dbg(ql_dbg_disc, vha, 0x307b,
1606 	    "%s %8phC DS %d LS %d lid %d retries=%d\n",
1607 	    __func__, fcport->port_name, fcport->disc_state,
1608 	    fcport->fw_login_state, fcport->loop_id, fcport->login_retry);
1609 
1610 	if (qla_tgt_mode_enabled(vha))
1611 		return;
1612 
1613 	if (qla_dual_mode_enabled(vha)) {
1614 		if (N2N_TOPO(vha->hw)) {
1615 			u64 mywwn, wwn;
1616 
1617 			mywwn = wwn_to_u64(vha->port_name);
1618 			wwn = wwn_to_u64(fcport->port_name);
1619 			if (mywwn > wwn)
1620 				login = 1;
1621 			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
1622 			    && time_after_eq(jiffies,
1623 				    fcport->plogi_nack_done_deadline))
1624 				login = 1;
1625 		} else {
1626 			login = 1;
1627 		}
1628 	} else {
1629 		/* initiator mode */
1630 		login = 1;
1631 	}
1632 
1633 	if (login && fcport->login_retry) {
1634 		fcport->login_retry--;
1635 		if (fcport->loop_id == FC_NO_LOOP_ID) {
1636 			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
1637 			rc = qla2x00_find_new_loop_id(vha, fcport);
1638 			if (rc) {
1639 				ql_dbg(ql_dbg_disc, vha, 0x20e6,
1640 				    "%s %d %8phC post del sess - out of loopid\n",
1641 				    __func__, __LINE__, fcport->port_name);
1642 				fcport->scan_state = 0;
1643 				qlt_schedule_sess_for_deletion(fcport);
1644 				return;
1645 			}
1646 		}
1647 		ql_dbg(ql_dbg_disc, vha, 0x20bf,
1648 		    "%s %d %8phC post login\n",
1649 		    __func__, __LINE__, fcport->port_name);
1650 		qla2x00_post_async_login_work(vha, fcport, NULL);
1651 	}
1652 }
1653 
1654 int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
1655 {
1656 	u16 data[2];
1657 	u16 sec;
1658 
1659 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
1660 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d fc4type %x\n",
1661 	    __func__, fcport->port_name, fcport->disc_state,
1662 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
1663 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
1664 	    fcport->login_gen, fcport->loop_id, fcport->scan_state,
1665 	    fcport->fc4_type);
1666 
1667 	if (fcport->scan_state != QLA_FCPORT_FOUND ||
1668 	    fcport->disc_state == DSC_DELETE_PEND)
1669 		return 0;
1670 
1671 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
1672 	    qla_dual_mode_enabled(vha) &&
1673 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
1674 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
1675 		return 0;
1676 
1677 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP &&
1678 	    !N2N_TOPO(vha->hw)) {
1679 		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
1680 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1681 			return 0;
1682 		}
1683 	}
1684 
1685 	/* Target won't initiate port login if fabric is present */
1686 	if (vha->host->active_mode == MODE_TARGET && !N2N_TOPO(vha->hw))
1687 		return 0;
1688 
1689 	if (fcport->flags & (FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE)) {
1690 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1691 		return 0;
1692 	}
1693 
1694 	switch (fcport->disc_state) {
1695 	case DSC_DELETED:
1696 		switch (vha->hw->current_topology) {
1697 		case ISP_CFG_N:
1698 			if (fcport_is_smaller(fcport)) {
1699 				/* this adapter is bigger */
1700 				if (fcport->login_retry) {
1701 					if (fcport->loop_id == FC_NO_LOOP_ID) {
1702 						qla2x00_find_new_loop_id(vha,
1703 						    fcport);
1704 						fcport->fw_login_state =
1705 						    DSC_LS_PORT_UNAVAIL;
1706 					}
1707 					fcport->login_retry--;
1708 					qla_post_els_plogi_work(vha, fcport);
1709 				} else {
1710 					ql_log(ql_log_info, vha, 0x705d,
1711 					    "Unable to reach remote port %8phC",
1712 					    fcport->port_name);
1713 				}
1714 			} else {
1715 				qla24xx_post_gnl_work(vha, fcport);
1716 			}
1717 			break;
1718 		default:
1719 			if (fcport->loop_id == FC_NO_LOOP_ID) {
1720 				ql_dbg(ql_dbg_disc, vha, 0x20bd,
1721 				    "%s %d %8phC post gnl\n",
1722 				    __func__, __LINE__, fcport->port_name);
1723 				qla24xx_post_gnl_work(vha, fcport);
1724 			} else {
1725 				qla_chk_n2n_b4_login(vha, fcport);
1726 			}
1727 			break;
1728 		}
1729 		break;
1730 
1731 	case DSC_GNL:
1732 		switch (vha->hw->current_topology) {
1733 		case ISP_CFG_N:
1734 			if ((fcport->current_login_state & 0xf) == 0x6) {
1735 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1736 				    "%s %d %8phC post GPDB work\n",
1737 				    __func__, __LINE__, fcport->port_name);
1738 				fcport->chip_reset =
1739 					vha->hw->base_qpair->chip_reset;
1740 				qla24xx_post_gpdb_work(vha, fcport, 0);
1741 			}  else {
1742 				ql_dbg(ql_dbg_disc, vha, 0x2118,
1743 				    "%s %d %8phC post %s PRLI\n",
1744 				    __func__, __LINE__, fcport->port_name,
1745 				    NVME_TARGET(vha->hw, fcport) ? "NVME" :
1746 				    "FC");
1747 				qla24xx_post_prli_work(vha, fcport);
1748 			}
1749 			break;
1750 		default:
1751 			if (fcport->login_pause) {
1752 				ql_dbg(ql_dbg_disc, vha, 0x20d8,
1753 				    "%s %d %8phC exit\n",
1754 				    __func__, __LINE__,
1755 				    fcport->port_name);
1756 				fcport->last_rscn_gen = fcport->rscn_gen;
1757 				fcport->last_login_gen = fcport->login_gen;
1758 				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1759 				break;
1760 			}
1761 			qla_chk_n2n_b4_login(vha, fcport);
1762 			break;
1763 		}
1764 		break;
1765 
1766 	case DSC_LOGIN_FAILED:
1767 		if (N2N_TOPO(vha->hw))
1768 			qla_chk_n2n_b4_login(vha, fcport);
1769 		else
1770 			qlt_schedule_sess_for_deletion(fcport);
1771 		break;
1772 
1773 	case DSC_LOGIN_COMPLETE:
1774 		/* recheck login state */
1775 		data[0] = data[1] = 0;
1776 		qla2x00_post_async_adisc_work(vha, fcport, data);
1777 		break;
1778 
1779 	case DSC_LOGIN_PEND:
1780 		if (vha->hw->flags.edif_enabled)
1781 			break;
1782 
1783 		if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
1784 			ql_dbg(ql_dbg_disc, vha, 0x2118,
1785 			       "%s %d %8phC post %s PRLI\n",
1786 			       __func__, __LINE__, fcport->port_name,
1787 			       NVME_TARGET(vha->hw, fcport) ? "NVME" : "FC");
1788 			qla24xx_post_prli_work(vha, fcport);
1789 		}
1790 		break;
1791 
1792 	case DSC_UPD_FCPORT:
1793 		sec =  jiffies_to_msecs(jiffies -
1794 		    fcport->jiffies_at_registration)/1000;
1795 		if (fcport->sec_since_registration < sec && sec &&
1796 		    !(sec % 60)) {
1797 			fcport->sec_since_registration = sec;
1798 			ql_dbg(ql_dbg_disc, fcport->vha, 0xffff,
1799 			    "%s %8phC - Slow Rport registration(%d Sec)\n",
1800 			    __func__, fcport->port_name, sec);
1801 		}
1802 
1803 		if (fcport->next_disc_state != DSC_DELETE_PEND)
1804 			fcport->next_disc_state = DSC_ADISC;
1805 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
1806 		break;
1807 
1808 	default:
1809 		break;
1810 	}
1811 
1812 	return 0;
1813 }
1814 
1815 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
1816     u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
1817 {
1818 	struct qla_work_evt *e;
1819 
1820 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
1821 	if (!e)
1822 		return QLA_FUNCTION_FAILED;
1823 
1824 	e->u.new_sess.id = *id;
1825 	e->u.new_sess.pla = pla;
1826 	e->u.new_sess.fc4_type = fc4_type;
1827 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
1828 	if (node_name)
1829 		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
1830 
1831 	return qla2x00_post_work(vha, e);
1832 }
1833 
1834 void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
1835 {
1836 	fc_port_t *fcport;
1837 	unsigned long flags;
1838 
1839 	switch (ea->id.b.rsvd_1) {
1840 	case RSCN_PORT_ADDR:
1841 		fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
1842 		if (fcport) {
1843 			if (ql2xfc2target &&
1844 			    fcport->flags & FCF_FCP2_DEVICE &&
1845 			    atomic_read(&fcport->state) == FCS_ONLINE) {
1846 				ql_dbg(ql_dbg_disc, vha, 0x2115,
1847 				       "Delaying session delete for FCP2 portid=%06x %8phC ",
1848 					fcport->d_id.b24, fcport->port_name);
1849 				return;
1850 			}
1851 
1852 			if (vha->hw->flags.edif_enabled && DBELL_ACTIVE(vha)) {
1853 				/*
1854 				 * On ipsec start by remote port, Target port
1855 				 * may use RSCN to trigger initiator to
1856 				 * relogin. If driver is already in the
1857 				 * process of a relogin, then ignore the RSCN
1858 				 * and allow the current relogin to continue.
1859 				 * This reduces thrashing of the connection.
1860 				 */
1861 				if (atomic_read(&fcport->state) == FCS_ONLINE) {
1862 					/*
1863 					 * If state = online, then set scan_needed=1 to do relogin.
1864 					 * Otherwise we're already in the middle of a relogin
1865 					 */
1866 					fcport->scan_needed = 1;
1867 					fcport->rscn_gen++;
1868 				}
1869 			} else {
1870 				fcport->scan_needed = 1;
1871 				fcport->rscn_gen++;
1872 			}
1873 		}
1874 		break;
1875 	case RSCN_AREA_ADDR:
1876 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1877 			if (fcport->flags & FCF_FCP2_DEVICE &&
1878 			    atomic_read(&fcport->state) == FCS_ONLINE)
1879 				continue;
1880 
1881 			if ((ea->id.b24 & 0xffff00) == (fcport->d_id.b24 & 0xffff00)) {
1882 				fcport->scan_needed = 1;
1883 				fcport->rscn_gen++;
1884 			}
1885 		}
1886 		break;
1887 	case RSCN_DOM_ADDR:
1888 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1889 			if (fcport->flags & FCF_FCP2_DEVICE &&
1890 			    atomic_read(&fcport->state) == FCS_ONLINE)
1891 				continue;
1892 
1893 			if ((ea->id.b24 & 0xff0000) == (fcport->d_id.b24 & 0xff0000)) {
1894 				fcport->scan_needed = 1;
1895 				fcport->rscn_gen++;
1896 			}
1897 		}
1898 		break;
1899 	case RSCN_FAB_ADDR:
1900 	default:
1901 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
1902 			if (fcport->flags & FCF_FCP2_DEVICE &&
1903 			    atomic_read(&fcport->state) == FCS_ONLINE)
1904 				continue;
1905 
1906 			fcport->scan_needed = 1;
1907 			fcport->rscn_gen++;
1908 		}
1909 		break;
1910 	}
1911 
1912 	spin_lock_irqsave(&vha->work_lock, flags);
1913 	if (vha->scan.scan_flags == 0) {
1914 		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
1915 		vha->scan.scan_flags |= SF_QUEUED;
1916 		schedule_delayed_work(&vha->scan.scan_work, 5);
1917 	}
1918 	spin_unlock_irqrestore(&vha->work_lock, flags);
1919 }
1920 
1921 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
1922 	struct event_arg *ea)
1923 {
1924 	fc_port_t *fcport = ea->fcport;
1925 
1926 	if (test_bit(UNLOADING, &vha->dpc_flags))
1927 		return;
1928 
1929 	ql_dbg(ql_dbg_disc, vha, 0x2102,
1930 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
1931 	    __func__, fcport->port_name, fcport->disc_state,
1932 	    fcport->fw_login_state, fcport->login_pause,
1933 	    fcport->deleted, fcport->conflict,
1934 	    fcport->last_rscn_gen, fcport->rscn_gen,
1935 	    fcport->last_login_gen, fcport->login_gen,
1936 	    fcport->flags);
1937 
1938 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
1939 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
1940 		    __func__, __LINE__, fcport->port_name);
1941 		qla24xx_post_gnl_work(vha, fcport);
1942 		return;
1943 	}
1944 
1945 	qla24xx_fcport_handle_login(vha, fcport);
1946 }
1947 
1948 void qla_handle_els_plogi_done(scsi_qla_host_t *vha,
1949 				      struct event_arg *ea)
1950 {
1951 	if (N2N_TOPO(vha->hw) && fcport_is_smaller(ea->fcport) &&
1952 	    vha->hw->flags.edif_enabled) {
1953 		/* check to see if App support Secure */
1954 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
1955 		return;
1956 	}
1957 
1958 	/* for pure Target Mode, PRLI will not be initiated */
1959 	if (vha->host->active_mode == MODE_TARGET)
1960 		return;
1961 
1962 	ql_dbg(ql_dbg_disc, vha, 0x2118,
1963 	    "%s %d %8phC post PRLI\n",
1964 	    __func__, __LINE__, ea->fcport->port_name);
1965 	qla24xx_post_prli_work(vha, ea->fcport);
1966 }
1967 
1968 /*
1969  * RSCN(s) came in for this fcport, but the RSCN(s) was not able
1970  * to be consumed by the fcport
1971  */
1972 void qla_rscn_replay(fc_port_t *fcport)
1973 {
1974 	struct event_arg ea;
1975 
1976 	switch (fcport->disc_state) {
1977 	case DSC_DELETE_PEND:
1978 		return;
1979 	default:
1980 		break;
1981 	}
1982 
1983 	if (fcport->scan_needed) {
1984 		memset(&ea, 0, sizeof(ea));
1985 		ea.id = fcport->d_id;
1986 		ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
1987 		qla2x00_handle_rscn(fcport->vha, &ea);
1988 	}
1989 }
1990 
1991 static void
1992 qla2x00_tmf_iocb_timeout(void *data)
1993 {
1994 	srb_t *sp = data;
1995 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
1996 	int rc, h;
1997 	unsigned long flags;
1998 
1999 	rc = qla24xx_async_abort_cmd(sp, false);
2000 	if (rc) {
2001 		spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
2002 		for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
2003 			if (sp->qpair->req->outstanding_cmds[h] == sp) {
2004 				sp->qpair->req->outstanding_cmds[h] = NULL;
2005 				qla_put_fw_resources(sp->qpair, &sp->iores);
2006 				break;
2007 			}
2008 		}
2009 		spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
2010 		tmf->u.tmf.comp_status = cpu_to_le16(CS_TIMEOUT);
2011 		tmf->u.tmf.data = QLA_FUNCTION_FAILED;
2012 		complete(&tmf->u.tmf.comp);
2013 	}
2014 }
2015 
2016 static void qla2x00_tmf_sp_done(srb_t *sp, int res)
2017 {
2018 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
2019 
2020 	complete(&tmf->u.tmf.comp);
2021 }
2022 
2023 int
2024 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
2025 	uint32_t tag)
2026 {
2027 	struct scsi_qla_host *vha = fcport->vha;
2028 	struct srb_iocb *tm_iocb;
2029 	srb_t *sp;
2030 	int rval = QLA_FUNCTION_FAILED;
2031 
2032 	/* ref: INIT */
2033 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2034 	if (!sp)
2035 		goto done;
2036 
2037 	qla_vha_mark_busy(vha);
2038 	sp->type = SRB_TM_CMD;
2039 	sp->name = "tmf";
2040 	qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha),
2041 			      qla2x00_tmf_sp_done);
2042 	sp->u.iocb_cmd.timeout = qla2x00_tmf_iocb_timeout;
2043 
2044 	tm_iocb = &sp->u.iocb_cmd;
2045 	init_completion(&tm_iocb->u.tmf.comp);
2046 	tm_iocb->u.tmf.flags = flags;
2047 	tm_iocb->u.tmf.lun = lun;
2048 
2049 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
2050 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
2051 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
2052 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
2053 
2054 	rval = qla2x00_start_sp(sp);
2055 	if (rval != QLA_SUCCESS)
2056 		goto done_free_sp;
2057 	wait_for_completion(&tm_iocb->u.tmf.comp);
2058 
2059 	rval = tm_iocb->u.tmf.data;
2060 
2061 	if (rval != QLA_SUCCESS) {
2062 		ql_log(ql_log_warn, vha, 0x8030,
2063 		    "TM IOCB failed (%x).\n", rval);
2064 	}
2065 
2066 	if (!test_bit(UNLOADING, &vha->dpc_flags) && !IS_QLAFX00(vha->hw)) {
2067 		flags = tm_iocb->u.tmf.flags;
2068 		lun = (uint16_t)tm_iocb->u.tmf.lun;
2069 
2070 		/* Issue Marker IOCB */
2071 		qla2x00_marker(vha, vha->hw->base_qpair,
2072 		    fcport->loop_id, lun,
2073 		    flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
2074 	}
2075 
2076 done_free_sp:
2077 	/* ref: INIT */
2078 	kref_put(&sp->cmd_kref, qla2x00_sp_release);
2079 done:
2080 	return rval;
2081 }
2082 
2083 int
2084 qla24xx_async_abort_command(srb_t *sp)
2085 {
2086 	unsigned long   flags = 0;
2087 
2088 	uint32_t	handle;
2089 	fc_port_t	*fcport = sp->fcport;
2090 	struct qla_qpair *qpair = sp->qpair;
2091 	struct scsi_qla_host *vha = fcport->vha;
2092 	struct req_que *req = qpair->req;
2093 
2094 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
2095 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
2096 		if (req->outstanding_cmds[handle] == sp)
2097 			break;
2098 	}
2099 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
2100 
2101 	if (handle == req->num_outstanding_cmds) {
2102 		/* Command not found. */
2103 		return QLA_ERR_NOT_FOUND;
2104 	}
2105 	if (sp->type == SRB_FXIOCB_DCMD)
2106 		return qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
2107 		    FXDISC_ABORT_IOCTL);
2108 
2109 	return qla24xx_async_abort_cmd(sp, true);
2110 }
2111 
2112 static void
2113 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
2114 {
2115 	struct srb *sp;
2116 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
2117 		  ea->data[0]);
2118 
2119 	switch (ea->data[0]) {
2120 	case MBS_COMMAND_COMPLETE:
2121 		ql_dbg(ql_dbg_disc, vha, 0x2118,
2122 		    "%s %d %8phC post gpdb\n",
2123 		    __func__, __LINE__, ea->fcport->port_name);
2124 
2125 		ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2126 		ea->fcport->logout_on_delete = 1;
2127 		ea->fcport->nvme_prli_service_param = ea->iop[0];
2128 		if (ea->iop[0] & NVME_PRLI_SP_FIRST_BURST)
2129 			ea->fcport->nvme_first_burst_size =
2130 			    (ea->iop[1] & 0xffff) * 512;
2131 		else
2132 			ea->fcport->nvme_first_burst_size = 0;
2133 		qla24xx_post_gpdb_work(vha, ea->fcport, 0);
2134 		break;
2135 	default:
2136 		sp = ea->sp;
2137 		ql_dbg(ql_dbg_disc, vha, 0x2118,
2138 		       "%s %d %8phC priority %s, fc4type %x prev try %s\n",
2139 		       __func__, __LINE__, ea->fcport->port_name,
2140 		       vha->hw->fc4_type_priority == FC4_PRIORITY_FCP ?
2141 		       "FCP" : "NVMe", ea->fcport->fc4_type,
2142 		       (sp->u.iocb_cmd.u.logio.flags & SRB_LOGIN_NVME_PRLI) ?
2143 			"NVME" : "FCP");
2144 
2145 		if (NVME_FCP_TARGET(ea->fcport)) {
2146 			if (sp->u.iocb_cmd.u.logio.flags & SRB_LOGIN_NVME_PRLI)
2147 				ea->fcport->do_prli_nvme = 0;
2148 			else
2149 				ea->fcport->do_prli_nvme = 1;
2150 		} else {
2151 			ea->fcport->do_prli_nvme = 0;
2152 		}
2153 
2154 		if (N2N_TOPO(vha->hw)) {
2155 			if (ea->fcport->n2n_link_reset_cnt ==
2156 			    vha->hw->login_retry_count &&
2157 			    ea->fcport->flags & FCF_FCSP_DEVICE) {
2158 				/* remote authentication app just started */
2159 				ea->fcport->n2n_link_reset_cnt = 0;
2160 			}
2161 
2162 			if (ea->fcport->n2n_link_reset_cnt <
2163 			    vha->hw->login_retry_count) {
2164 				ea->fcport->n2n_link_reset_cnt++;
2165 				vha->relogin_jif = jiffies + 2 * HZ;
2166 				/*
2167 				 * PRLI failed. Reset link to kick start
2168 				 * state machine
2169 				 */
2170 				set_bit(N2N_LINK_RESET, &vha->dpc_flags);
2171 				qla2xxx_wake_dpc(vha);
2172 			} else {
2173 				ql_log(ql_log_warn, vha, 0x2119,
2174 				       "%s %d %8phC Unable to reconnect\n",
2175 				       __func__, __LINE__,
2176 				       ea->fcport->port_name);
2177 			}
2178 		} else {
2179 			/*
2180 			 * switch connect. login failed. Take connection down
2181 			 * and allow relogin to retrigger
2182 			 */
2183 			ea->fcport->flags &= ~FCF_ASYNC_SENT;
2184 			ea->fcport->keep_nport_handle = 0;
2185 			ea->fcport->logout_on_delete = 1;
2186 			qlt_schedule_sess_for_deletion(ea->fcport);
2187 		}
2188 		break;
2189 	}
2190 }
2191 
2192 void
2193 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
2194 {
2195 	port_id_t cid;	/* conflict Nport id */
2196 	u16 lid;
2197 	struct fc_port *conflict_fcport;
2198 	unsigned long flags;
2199 	struct fc_port *fcport = ea->fcport;
2200 
2201 	ql_dbg(ql_dbg_disc, vha, 0xffff,
2202 	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
2203 	    __func__, fcport->port_name, fcport->disc_state,
2204 	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
2205 	    ea->sp->gen1, fcport->rscn_gen,
2206 	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
2207 
2208 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
2209 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
2210 		ql_dbg(ql_dbg_disc, vha, 0x20ea,
2211 		    "%s %d %8phC Remote is trying to login\n",
2212 		    __func__, __LINE__, fcport->port_name);
2213 		return;
2214 	}
2215 
2216 	if ((fcport->disc_state == DSC_DELETE_PEND) ||
2217 	    (fcport->disc_state == DSC_DELETED)) {
2218 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2219 		return;
2220 	}
2221 
2222 	if (ea->sp->gen2 != fcport->login_gen) {
2223 		/* target side must have changed it. */
2224 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
2225 		    "%s %8phC generation changed\n",
2226 		    __func__, fcport->port_name);
2227 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2228 		return;
2229 	} else if (ea->sp->gen1 != fcport->rscn_gen) {
2230 		ql_dbg(ql_dbg_disc, vha, 0x20d3,
2231 		    "%s %8phC RSCN generation changed\n",
2232 		    __func__, fcport->port_name);
2233 		qla_rscn_replay(fcport);
2234 		qlt_schedule_sess_for_deletion(fcport);
2235 		return;
2236 	}
2237 
2238 	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
2239 		  ea->data[0]);
2240 
2241 	switch (ea->data[0]) {
2242 	case MBS_COMMAND_COMPLETE:
2243 		/*
2244 		 * Driver must validate login state - If PRLI not complete,
2245 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
2246 		 * requests.
2247 		 */
2248 		if (vha->hw->flags.edif_enabled) {
2249 			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2250 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
2251 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2252 			ea->fcport->logout_on_delete = 1;
2253 			ea->fcport->send_els_logo = 0;
2254 			ea->fcport->fw_login_state = DSC_LS_PLOGI_COMP;
2255 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
2256 
2257 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
2258 		} else {
2259 			if (NVME_TARGET(vha->hw, fcport)) {
2260 				ql_dbg(ql_dbg_disc, vha, 0x2117,
2261 				    "%s %d %8phC post prli\n",
2262 				    __func__, __LINE__, fcport->port_name);
2263 				qla24xx_post_prli_work(vha, fcport);
2264 			} else {
2265 				ql_dbg(ql_dbg_disc, vha, 0x20ea,
2266 				    "%s %d %8phC LoopID 0x%x in use with %06x. post gpdb\n",
2267 				    __func__, __LINE__, fcport->port_name,
2268 				    fcport->loop_id, fcport->d_id.b24);
2269 
2270 				set_bit(fcport->loop_id, vha->hw->loop_id_map);
2271 				spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
2272 				fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2273 				fcport->logout_on_delete = 1;
2274 				fcport->send_els_logo = 0;
2275 				fcport->fw_login_state = DSC_LS_PRLI_COMP;
2276 				spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
2277 
2278 				qla24xx_post_gpdb_work(vha, fcport, 0);
2279 			}
2280 		}
2281 		break;
2282 	case MBS_COMMAND_ERROR:
2283 		ql_dbg(ql_dbg_disc, vha, 0x20eb, "%s %d %8phC cmd error %x\n",
2284 		    __func__, __LINE__, ea->fcport->port_name, ea->data[1]);
2285 
2286 		qlt_schedule_sess_for_deletion(ea->fcport);
2287 		break;
2288 	case MBS_LOOP_ID_USED:
2289 		/* data[1] = IO PARAM 1 = nport ID  */
2290 		cid.b.domain = (ea->iop[1] >> 16) & 0xff;
2291 		cid.b.area   = (ea->iop[1] >>  8) & 0xff;
2292 		cid.b.al_pa  = ea->iop[1] & 0xff;
2293 		cid.b.rsvd_1 = 0;
2294 
2295 		ql_dbg(ql_dbg_disc, vha, 0x20ec,
2296 		    "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
2297 		    __func__, __LINE__, ea->fcport->port_name,
2298 		    ea->fcport->loop_id, cid.b24);
2299 
2300 		set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
2301 		ea->fcport->loop_id = FC_NO_LOOP_ID;
2302 		qla24xx_post_gnl_work(vha, ea->fcport);
2303 		break;
2304 	case MBS_PORT_ID_USED:
2305 		lid = ea->iop[1] & 0xffff;
2306 		qlt_find_sess_invalidate_other(vha,
2307 		    wwn_to_u64(ea->fcport->port_name),
2308 		    ea->fcport->d_id, lid, &conflict_fcport);
2309 
2310 		if (conflict_fcport) {
2311 			/*
2312 			 * Another fcport share the same loop_id/nport id.
2313 			 * Conflict fcport needs to finish cleanup before this
2314 			 * fcport can proceed to login.
2315 			 */
2316 			conflict_fcport->conflict = ea->fcport;
2317 			ea->fcport->login_pause = 1;
2318 
2319 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2320 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x.\n",
2321 			    __func__, __LINE__, ea->fcport->port_name,
2322 			    ea->fcport->d_id.b24, lid);
2323 		} else {
2324 			ql_dbg(ql_dbg_disc, vha, 0x20ed,
2325 			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
2326 			    __func__, __LINE__, ea->fcport->port_name,
2327 			    ea->fcport->d_id.b24, lid);
2328 
2329 			qla2x00_clear_loop_id(ea->fcport);
2330 			set_bit(lid, vha->hw->loop_id_map);
2331 			ea->fcport->loop_id = lid;
2332 			ea->fcport->keep_nport_handle = 0;
2333 			ea->fcport->logout_on_delete = 1;
2334 			qlt_schedule_sess_for_deletion(ea->fcport);
2335 		}
2336 		break;
2337 	}
2338 	return;
2339 }
2340 
2341 /****************************************************************************/
2342 /*                QLogic ISP2x00 Hardware Support Functions.                */
2343 /****************************************************************************/
2344 
2345 static int
2346 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
2347 {
2348 	int rval = QLA_SUCCESS;
2349 	struct qla_hw_data *ha = vha->hw;
2350 	uint32_t idc_major_ver, idc_minor_ver;
2351 	uint16_t config[4];
2352 
2353 	qla83xx_idc_lock(vha, 0);
2354 
2355 	/* SV: TODO: Assign initialization timeout from
2356 	 * flash-info / other param
2357 	 */
2358 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
2359 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
2360 
2361 	/* Set our fcoe function presence */
2362 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
2363 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
2364 		    "Error while setting DRV-Presence.\n");
2365 		rval = QLA_FUNCTION_FAILED;
2366 		goto exit;
2367 	}
2368 
2369 	/* Decide the reset ownership */
2370 	qla83xx_reset_ownership(vha);
2371 
2372 	/*
2373 	 * On first protocol driver load:
2374 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
2375 	 * register.
2376 	 * Others: Check compatibility with current IDC Major version.
2377 	 */
2378 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
2379 	if (ha->flags.nic_core_reset_owner) {
2380 		/* Set IDC Major version */
2381 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
2382 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
2383 
2384 		/* Clearing IDC-Lock-Recovery register */
2385 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
2386 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
2387 		/*
2388 		 * Clear further IDC participation if we are not compatible with
2389 		 * the current IDC Major Version.
2390 		 */
2391 		ql_log(ql_log_warn, vha, 0xb07d,
2392 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
2393 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
2394 		__qla83xx_clear_drv_presence(vha);
2395 		rval = QLA_FUNCTION_FAILED;
2396 		goto exit;
2397 	}
2398 	/* Each function sets its supported Minor version. */
2399 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
2400 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
2401 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
2402 
2403 	if (ha->flags.nic_core_reset_owner) {
2404 		memset(config, 0, sizeof(config));
2405 		if (!qla81xx_get_port_config(vha, config))
2406 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
2407 			    QLA8XXX_DEV_READY);
2408 	}
2409 
2410 	rval = qla83xx_idc_state_handler(vha);
2411 
2412 exit:
2413 	qla83xx_idc_unlock(vha, 0);
2414 
2415 	return rval;
2416 }
2417 
2418 /*
2419 * qla2x00_initialize_adapter
2420 *      Initialize board.
2421 *
2422 * Input:
2423 *      ha = adapter block pointer.
2424 *
2425 * Returns:
2426 *      0 = success
2427 */
2428 int
2429 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
2430 {
2431 	int	rval;
2432 	struct qla_hw_data *ha = vha->hw;
2433 	struct req_que *req = ha->req_q_map[0];
2434 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2435 
2436 	memset(&vha->qla_stats, 0, sizeof(vha->qla_stats));
2437 	memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat));
2438 
2439 	/* Clear adapter flags. */
2440 	vha->flags.online = 0;
2441 	ha->flags.chip_reset_done = 0;
2442 	vha->flags.reset_active = 0;
2443 	ha->flags.pci_channel_io_perm_failure = 0;
2444 	ha->flags.eeh_busy = 0;
2445 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
2446 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
2447 	atomic_set(&vha->loop_state, LOOP_DOWN);
2448 	vha->device_flags = DFLG_NO_CABLE;
2449 	vha->dpc_flags = 0;
2450 	vha->flags.management_server_logged_in = 0;
2451 	vha->marker_needed = 0;
2452 	ha->isp_abort_cnt = 0;
2453 	ha->beacon_blink_led = 0;
2454 
2455 	set_bit(0, ha->req_qid_map);
2456 	set_bit(0, ha->rsp_qid_map);
2457 
2458 	ql_dbg(ql_dbg_init, vha, 0x0040,
2459 	    "Configuring PCI space...\n");
2460 	rval = ha->isp_ops->pci_config(vha);
2461 	if (rval) {
2462 		ql_log(ql_log_warn, vha, 0x0044,
2463 		    "Unable to configure PCI space.\n");
2464 		return (rval);
2465 	}
2466 
2467 	ha->isp_ops->reset_chip(vha);
2468 
2469 	/* Check for secure flash support */
2470 	if (IS_QLA28XX(ha)) {
2471 		if (rd_reg_word(&reg->mailbox12) & BIT_0)
2472 			ha->flags.secure_adapter = 1;
2473 		ql_log(ql_log_info, vha, 0xffff, "Secure Adapter: %s\n",
2474 		    (ha->flags.secure_adapter) ? "Yes" : "No");
2475 	}
2476 
2477 
2478 	rval = qla2xxx_get_flash_info(vha);
2479 	if (rval) {
2480 		ql_log(ql_log_fatal, vha, 0x004f,
2481 		    "Unable to validate FLASH data.\n");
2482 		return rval;
2483 	}
2484 
2485 	if (IS_QLA8044(ha)) {
2486 		qla8044_read_reset_template(vha);
2487 
2488 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
2489 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
2490 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
2491 		 * should honor the reset. */
2492 		if (ql2xdontresethba == 1)
2493 			qla8044_set_idc_dontreset(vha);
2494 	}
2495 
2496 	ha->isp_ops->get_flash_version(vha, req->ring);
2497 	ql_dbg(ql_dbg_init, vha, 0x0061,
2498 	    "Configure NVRAM parameters...\n");
2499 
2500 	/* Let priority default to FCP, can be overridden by nvram_config */
2501 	ha->fc4_type_priority = FC4_PRIORITY_FCP;
2502 
2503 	ha->isp_ops->nvram_config(vha);
2504 
2505 	if (ha->fc4_type_priority != FC4_PRIORITY_FCP &&
2506 	    ha->fc4_type_priority != FC4_PRIORITY_NVME)
2507 		ha->fc4_type_priority = FC4_PRIORITY_FCP;
2508 
2509 	ql_log(ql_log_info, vha, 0xffff, "FC4 priority set to %s\n",
2510 	       ha->fc4_type_priority == FC4_PRIORITY_FCP ? "FCP" : "NVMe");
2511 
2512 	if (ha->flags.disable_serdes) {
2513 		/* Mask HBA via NVRAM settings? */
2514 		ql_log(ql_log_info, vha, 0x0077,
2515 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
2516 		return QLA_FUNCTION_FAILED;
2517 	}
2518 
2519 	ql_dbg(ql_dbg_init, vha, 0x0078,
2520 	    "Verifying loaded RISC code...\n");
2521 
2522 	/* If smartsan enabled then require fdmi and rdp enabled */
2523 	if (ql2xsmartsan) {
2524 		ql2xfdmienable = 1;
2525 		ql2xrdpenable = 1;
2526 	}
2527 
2528 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
2529 		rval = ha->isp_ops->chip_diag(vha);
2530 		if (rval)
2531 			return (rval);
2532 		rval = qla2x00_setup_chip(vha);
2533 		if (rval)
2534 			return (rval);
2535 	}
2536 
2537 	if (IS_QLA84XX(ha)) {
2538 		ha->cs84xx = qla84xx_get_chip(vha);
2539 		if (!ha->cs84xx) {
2540 			ql_log(ql_log_warn, vha, 0x00d0,
2541 			    "Unable to configure ISP84XX.\n");
2542 			return QLA_FUNCTION_FAILED;
2543 		}
2544 	}
2545 
2546 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
2547 		rval = qla2x00_init_rings(vha);
2548 
2549 	/* No point in continuing if firmware initialization failed. */
2550 	if (rval != QLA_SUCCESS)
2551 		return rval;
2552 
2553 	ha->flags.chip_reset_done = 1;
2554 
2555 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
2556 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
2557 		rval = qla84xx_init_chip(vha);
2558 		if (rval != QLA_SUCCESS) {
2559 			ql_log(ql_log_warn, vha, 0x00d4,
2560 			    "Unable to initialize ISP84XX.\n");
2561 			qla84xx_put_chip(vha);
2562 		}
2563 	}
2564 
2565 	/* Load the NIC Core f/w if we are the first protocol driver. */
2566 	if (IS_QLA8031(ha)) {
2567 		rval = qla83xx_nic_core_fw_load(vha);
2568 		if (rval)
2569 			ql_log(ql_log_warn, vha, 0x0124,
2570 			    "Error in initializing NIC Core f/w.\n");
2571 	}
2572 
2573 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
2574 		qla24xx_read_fcp_prio_cfg(vha);
2575 
2576 	if (IS_P3P_TYPE(ha))
2577 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
2578 	else
2579 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
2580 
2581 	return (rval);
2582 }
2583 
2584 /**
2585  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
2586  * @vha: HA context
2587  *
2588  * Returns 0 on success.
2589  */
2590 int
2591 qla2100_pci_config(scsi_qla_host_t *vha)
2592 {
2593 	uint16_t w;
2594 	unsigned long flags;
2595 	struct qla_hw_data *ha = vha->hw;
2596 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2597 
2598 	pci_set_master(ha->pdev);
2599 	pci_try_set_mwi(ha->pdev);
2600 
2601 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2602 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2603 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2604 
2605 	pci_disable_rom(ha->pdev);
2606 
2607 	/* Get PCI bus information. */
2608 	spin_lock_irqsave(&ha->hardware_lock, flags);
2609 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2610 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2611 
2612 	return QLA_SUCCESS;
2613 }
2614 
2615 /**
2616  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
2617  * @vha: HA context
2618  *
2619  * Returns 0 on success.
2620  */
2621 int
2622 qla2300_pci_config(scsi_qla_host_t *vha)
2623 {
2624 	uint16_t	w;
2625 	unsigned long   flags = 0;
2626 	uint32_t	cnt;
2627 	struct qla_hw_data *ha = vha->hw;
2628 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2629 
2630 	pci_set_master(ha->pdev);
2631 	pci_try_set_mwi(ha->pdev);
2632 
2633 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2634 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2635 
2636 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
2637 		w &= ~PCI_COMMAND_INTX_DISABLE;
2638 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2639 
2640 	/*
2641 	 * If this is a 2300 card and not 2312, reset the
2642 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
2643 	 * the 2310 also reports itself as a 2300 so we need to get the
2644 	 * fb revision level -- a 6 indicates it really is a 2300 and
2645 	 * not a 2310.
2646 	 */
2647 	if (IS_QLA2300(ha)) {
2648 		spin_lock_irqsave(&ha->hardware_lock, flags);
2649 
2650 		/* Pause RISC. */
2651 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2652 		for (cnt = 0; cnt < 30000; cnt++) {
2653 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
2654 				break;
2655 
2656 			udelay(10);
2657 		}
2658 
2659 		/* Select FPM registers. */
2660 		wrt_reg_word(&reg->ctrl_status, 0x20);
2661 		rd_reg_word(&reg->ctrl_status);
2662 
2663 		/* Get the fb rev level */
2664 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
2665 
2666 		if (ha->fb_rev == FPM_2300)
2667 			pci_clear_mwi(ha->pdev);
2668 
2669 		/* Deselect FPM registers. */
2670 		wrt_reg_word(&reg->ctrl_status, 0x0);
2671 		rd_reg_word(&reg->ctrl_status);
2672 
2673 		/* Release RISC module. */
2674 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2675 		for (cnt = 0; cnt < 30000; cnt++) {
2676 			if ((rd_reg_word(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
2677 				break;
2678 
2679 			udelay(10);
2680 		}
2681 
2682 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
2683 	}
2684 
2685 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2686 
2687 	pci_disable_rom(ha->pdev);
2688 
2689 	/* Get PCI bus information. */
2690 	spin_lock_irqsave(&ha->hardware_lock, flags);
2691 	ha->pci_attr = rd_reg_word(&reg->ctrl_status);
2692 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2693 
2694 	return QLA_SUCCESS;
2695 }
2696 
2697 /**
2698  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
2699  * @vha: HA context
2700  *
2701  * Returns 0 on success.
2702  */
2703 int
2704 qla24xx_pci_config(scsi_qla_host_t *vha)
2705 {
2706 	uint16_t w;
2707 	unsigned long flags = 0;
2708 	struct qla_hw_data *ha = vha->hw;
2709 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2710 
2711 	pci_set_master(ha->pdev);
2712 	pci_try_set_mwi(ha->pdev);
2713 
2714 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2715 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2716 	w &= ~PCI_COMMAND_INTX_DISABLE;
2717 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2718 
2719 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
2720 
2721 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
2722 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
2723 		pcix_set_mmrbc(ha->pdev, 2048);
2724 
2725 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2726 	if (pci_is_pcie(ha->pdev))
2727 		pcie_set_readrq(ha->pdev, 4096);
2728 
2729 	pci_disable_rom(ha->pdev);
2730 
2731 	ha->chip_revision = ha->pdev->revision;
2732 
2733 	/* Get PCI bus information. */
2734 	spin_lock_irqsave(&ha->hardware_lock, flags);
2735 	ha->pci_attr = rd_reg_dword(&reg->ctrl_status);
2736 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2737 
2738 	return QLA_SUCCESS;
2739 }
2740 
2741 /**
2742  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
2743  * @vha: HA context
2744  *
2745  * Returns 0 on success.
2746  */
2747 int
2748 qla25xx_pci_config(scsi_qla_host_t *vha)
2749 {
2750 	uint16_t w;
2751 	struct qla_hw_data *ha = vha->hw;
2752 
2753 	pci_set_master(ha->pdev);
2754 	pci_try_set_mwi(ha->pdev);
2755 
2756 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
2757 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
2758 	w &= ~PCI_COMMAND_INTX_DISABLE;
2759 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
2760 
2761 	/* PCIe -- adjust Maximum Read Request Size (2048). */
2762 	if (pci_is_pcie(ha->pdev))
2763 		pcie_set_readrq(ha->pdev, 4096);
2764 
2765 	pci_disable_rom(ha->pdev);
2766 
2767 	ha->chip_revision = ha->pdev->revision;
2768 
2769 	return QLA_SUCCESS;
2770 }
2771 
2772 /**
2773  * qla2x00_isp_firmware() - Choose firmware image.
2774  * @vha: HA context
2775  *
2776  * Returns 0 on success.
2777  */
2778 static int
2779 qla2x00_isp_firmware(scsi_qla_host_t *vha)
2780 {
2781 	int  rval;
2782 	uint16_t loop_id, topo, sw_cap;
2783 	uint8_t domain, area, al_pa;
2784 	struct qla_hw_data *ha = vha->hw;
2785 
2786 	/* Assume loading risc code */
2787 	rval = QLA_FUNCTION_FAILED;
2788 
2789 	if (ha->flags.disable_risc_code_load) {
2790 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
2791 
2792 		/* Verify checksum of loaded RISC code. */
2793 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
2794 		if (rval == QLA_SUCCESS) {
2795 			/* And, verify we are not in ROM code. */
2796 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
2797 			    &area, &domain, &topo, &sw_cap);
2798 		}
2799 	}
2800 
2801 	if (rval)
2802 		ql_dbg(ql_dbg_init, vha, 0x007a,
2803 		    "**** Load RISC code ****.\n");
2804 
2805 	return (rval);
2806 }
2807 
2808 /**
2809  * qla2x00_reset_chip() - Reset ISP chip.
2810  * @vha: HA context
2811  *
2812  * Returns 0 on success.
2813  */
2814 int
2815 qla2x00_reset_chip(scsi_qla_host_t *vha)
2816 {
2817 	unsigned long   flags = 0;
2818 	struct qla_hw_data *ha = vha->hw;
2819 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2820 	uint32_t	cnt;
2821 	uint16_t	cmd;
2822 	int rval = QLA_FUNCTION_FAILED;
2823 
2824 	if (unlikely(pci_channel_offline(ha->pdev)))
2825 		return rval;
2826 
2827 	ha->isp_ops->disable_intrs(ha);
2828 
2829 	spin_lock_irqsave(&ha->hardware_lock, flags);
2830 
2831 	/* Turn off master enable */
2832 	cmd = 0;
2833 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
2834 	cmd &= ~PCI_COMMAND_MASTER;
2835 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2836 
2837 	if (!IS_QLA2100(ha)) {
2838 		/* Pause RISC. */
2839 		wrt_reg_word(&reg->hccr, HCCR_PAUSE_RISC);
2840 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
2841 			for (cnt = 0; cnt < 30000; cnt++) {
2842 				if ((rd_reg_word(&reg->hccr) &
2843 				    HCCR_RISC_PAUSE) != 0)
2844 					break;
2845 				udelay(100);
2846 			}
2847 		} else {
2848 			rd_reg_word(&reg->hccr);	/* PCI Posting. */
2849 			udelay(10);
2850 		}
2851 
2852 		/* Select FPM registers. */
2853 		wrt_reg_word(&reg->ctrl_status, 0x20);
2854 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2855 
2856 		/* FPM Soft Reset. */
2857 		wrt_reg_word(&reg->fpm_diag_config, 0x100);
2858 		rd_reg_word(&reg->fpm_diag_config);	/* PCI Posting. */
2859 
2860 		/* Toggle Fpm Reset. */
2861 		if (!IS_QLA2200(ha)) {
2862 			wrt_reg_word(&reg->fpm_diag_config, 0x0);
2863 			rd_reg_word(&reg->fpm_diag_config); /* PCI Posting. */
2864 		}
2865 
2866 		/* Select frame buffer registers. */
2867 		wrt_reg_word(&reg->ctrl_status, 0x10);
2868 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2869 
2870 		/* Reset frame buffer FIFOs. */
2871 		if (IS_QLA2200(ha)) {
2872 			WRT_FB_CMD_REG(ha, reg, 0xa000);
2873 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
2874 		} else {
2875 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
2876 
2877 			/* Read back fb_cmd until zero or 3 seconds max */
2878 			for (cnt = 0; cnt < 3000; cnt++) {
2879 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
2880 					break;
2881 				udelay(100);
2882 			}
2883 		}
2884 
2885 		/* Select RISC module registers. */
2886 		wrt_reg_word(&reg->ctrl_status, 0);
2887 		rd_reg_word(&reg->ctrl_status);		/* PCI Posting. */
2888 
2889 		/* Reset RISC processor. */
2890 		wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2891 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2892 
2893 		/* Release RISC processor. */
2894 		wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2895 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2896 	}
2897 
2898 	wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
2899 	wrt_reg_word(&reg->hccr, HCCR_CLR_HOST_INT);
2900 
2901 	/* Reset ISP chip. */
2902 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
2903 
2904 	/* Wait for RISC to recover from reset. */
2905 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2906 		/*
2907 		 * It is necessary to for a delay here since the card doesn't
2908 		 * respond to PCI reads during a reset. On some architectures
2909 		 * this will result in an MCA.
2910 		 */
2911 		udelay(20);
2912 		for (cnt = 30000; cnt; cnt--) {
2913 			if ((rd_reg_word(&reg->ctrl_status) &
2914 			    CSR_ISP_SOFT_RESET) == 0)
2915 				break;
2916 			udelay(100);
2917 		}
2918 	} else
2919 		udelay(10);
2920 
2921 	/* Reset RISC processor. */
2922 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
2923 
2924 	wrt_reg_word(&reg->semaphore, 0);
2925 
2926 	/* Release RISC processor. */
2927 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
2928 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
2929 
2930 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
2931 		for (cnt = 0; cnt < 30000; cnt++) {
2932 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
2933 				break;
2934 
2935 			udelay(100);
2936 		}
2937 	} else
2938 		udelay(100);
2939 
2940 	/* Turn on master enable */
2941 	cmd |= PCI_COMMAND_MASTER;
2942 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
2943 
2944 	/* Disable RISC pause on FPM parity error. */
2945 	if (!IS_QLA2100(ha)) {
2946 		wrt_reg_word(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
2947 		rd_reg_word(&reg->hccr);		/* PCI Posting. */
2948 	}
2949 
2950 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2951 
2952 	return QLA_SUCCESS;
2953 }
2954 
2955 /**
2956  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
2957  * @vha: HA context
2958  *
2959  * Returns 0 on success.
2960  */
2961 static int
2962 qla81xx_reset_mpi(scsi_qla_host_t *vha)
2963 {
2964 	uint16_t mb[4] = {0x1010, 0, 1, 0};
2965 
2966 	if (!IS_QLA81XX(vha->hw))
2967 		return QLA_SUCCESS;
2968 
2969 	return qla81xx_write_mpi_register(vha, mb);
2970 }
2971 
2972 static int
2973 qla_chk_risc_recovery(scsi_qla_host_t *vha)
2974 {
2975 	struct qla_hw_data *ha = vha->hw;
2976 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2977 	__le16 __iomem *mbptr = &reg->mailbox0;
2978 	int i;
2979 	u16 mb[32];
2980 	int rc = QLA_SUCCESS;
2981 
2982 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
2983 		return rc;
2984 
2985 	/* this check is only valid after RISC reset */
2986 	mb[0] = rd_reg_word(mbptr);
2987 	mbptr++;
2988 	if (mb[0] == 0xf) {
2989 		rc = QLA_FUNCTION_FAILED;
2990 
2991 		for (i = 1; i < 32; i++) {
2992 			mb[i] = rd_reg_word(mbptr);
2993 			mbptr++;
2994 		}
2995 
2996 		ql_log(ql_log_warn, vha, 0x1015,
2997 		       "RISC reset failed. mb[0-7] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
2998 		       mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6], mb[7]);
2999 		ql_log(ql_log_warn, vha, 0x1015,
3000 		       "RISC reset failed. mb[8-15] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
3001 		       mb[8], mb[9], mb[10], mb[11], mb[12], mb[13], mb[14],
3002 		       mb[15]);
3003 		ql_log(ql_log_warn, vha, 0x1015,
3004 		       "RISC reset failed. mb[16-23] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
3005 		       mb[16], mb[17], mb[18], mb[19], mb[20], mb[21], mb[22],
3006 		       mb[23]);
3007 		ql_log(ql_log_warn, vha, 0x1015,
3008 		       "RISC reset failed. mb[24-31] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
3009 		       mb[24], mb[25], mb[26], mb[27], mb[28], mb[29], mb[30],
3010 		       mb[31]);
3011 	}
3012 	return rc;
3013 }
3014 
3015 /**
3016  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
3017  * @vha: HA context
3018  *
3019  * Returns 0 on success.
3020  */
3021 static inline int
3022 qla24xx_reset_risc(scsi_qla_host_t *vha)
3023 {
3024 	unsigned long flags = 0;
3025 	struct qla_hw_data *ha = vha->hw;
3026 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3027 	uint32_t cnt;
3028 	uint16_t wd;
3029 	static int abts_cnt; /* ISP abort retry counts */
3030 	int rval = QLA_SUCCESS;
3031 	int print = 1;
3032 
3033 	spin_lock_irqsave(&ha->hardware_lock, flags);
3034 
3035 	/* Reset RISC. */
3036 	wrt_reg_dword(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
3037 	for (cnt = 0; cnt < 30000; cnt++) {
3038 		if ((rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
3039 			break;
3040 
3041 		udelay(10);
3042 	}
3043 
3044 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE))
3045 		set_bit(DMA_SHUTDOWN_CMPL, &ha->fw_dump_cap_flags);
3046 
3047 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017e,
3048 	    "HCCR: 0x%x, Control Status %x, DMA active status:0x%x\n",
3049 	    rd_reg_dword(&reg->hccr),
3050 	    rd_reg_dword(&reg->ctrl_status),
3051 	    (rd_reg_dword(&reg->ctrl_status) & CSRX_DMA_ACTIVE));
3052 
3053 	wrt_reg_dword(&reg->ctrl_status,
3054 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
3055 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
3056 
3057 	udelay(100);
3058 
3059 	/* Wait for firmware to complete NVRAM accesses. */
3060 	rd_reg_word(&reg->mailbox0);
3061 	for (cnt = 10000; rd_reg_word(&reg->mailbox0) != 0 &&
3062 	    rval == QLA_SUCCESS; cnt--) {
3063 		barrier();
3064 		if (cnt)
3065 			udelay(5);
3066 		else
3067 			rval = QLA_FUNCTION_TIMEOUT;
3068 	}
3069 
3070 	if (rval == QLA_SUCCESS)
3071 		set_bit(ISP_MBX_RDY, &ha->fw_dump_cap_flags);
3072 
3073 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x017f,
3074 	    "HCCR: 0x%x, MailBox0 Status 0x%x\n",
3075 	    rd_reg_dword(&reg->hccr),
3076 	    rd_reg_word(&reg->mailbox0));
3077 
3078 	/* Wait for soft-reset to complete. */
3079 	rd_reg_dword(&reg->ctrl_status);
3080 	for (cnt = 0; cnt < 60; cnt++) {
3081 		barrier();
3082 		if ((rd_reg_dword(&reg->ctrl_status) &
3083 		    CSRX_ISP_SOFT_RESET) == 0)
3084 			break;
3085 
3086 		udelay(5);
3087 	}
3088 	if (!(rd_reg_dword(&reg->ctrl_status) & CSRX_ISP_SOFT_RESET))
3089 		set_bit(ISP_SOFT_RESET_CMPL, &ha->fw_dump_cap_flags);
3090 
3091 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015d,
3092 	    "HCCR: 0x%x, Soft Reset status: 0x%x\n",
3093 	    rd_reg_dword(&reg->hccr),
3094 	    rd_reg_dword(&reg->ctrl_status));
3095 
3096 	/* If required, do an MPI FW reset now */
3097 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
3098 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
3099 			if (++abts_cnt < 5) {
3100 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3101 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
3102 			} else {
3103 				/*
3104 				 * We exhausted the ISP abort retries. We have to
3105 				 * set the board offline.
3106 				 */
3107 				abts_cnt = 0;
3108 				vha->flags.online = 0;
3109 			}
3110 		}
3111 	}
3112 
3113 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
3114 	rd_reg_dword(&reg->hccr);
3115 
3116 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
3117 	rd_reg_dword(&reg->hccr);
3118 
3119 	wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_RESET);
3120 	mdelay(10);
3121 	rd_reg_dword(&reg->hccr);
3122 
3123 	wd = rd_reg_word(&reg->mailbox0);
3124 	for (cnt = 300; wd != 0 && rval == QLA_SUCCESS; cnt--) {
3125 		barrier();
3126 		if (cnt) {
3127 			mdelay(1);
3128 			if (print && qla_chk_risc_recovery(vha))
3129 				print = 0;
3130 
3131 			wd = rd_reg_word(&reg->mailbox0);
3132 		} else {
3133 			rval = QLA_FUNCTION_TIMEOUT;
3134 
3135 			ql_log(ql_log_warn, vha, 0x015e,
3136 			       "RISC reset timeout\n");
3137 		}
3138 	}
3139 
3140 	if (rval == QLA_SUCCESS)
3141 		set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);
3142 
3143 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015e,
3144 	    "Host Risc 0x%x, mailbox0 0x%x\n",
3145 	    rd_reg_dword(&reg->hccr),
3146 	     rd_reg_word(&reg->mailbox0));
3147 
3148 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3149 
3150 	ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x015f,
3151 	    "Driver in %s mode\n",
3152 	    IS_NOPOLLING_TYPE(ha) ? "Interrupt" : "Polling");
3153 
3154 	if (IS_NOPOLLING_TYPE(ha))
3155 		ha->isp_ops->enable_intrs(ha);
3156 
3157 	return rval;
3158 }
3159 
3160 static void
3161 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
3162 {
3163 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
3164 
3165 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
3166 	*data = rd_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET);
3167 }
3168 
3169 static void
3170 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
3171 {
3172 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
3173 
3174 	wrt_reg_dword(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
3175 	wrt_reg_dword(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFSET, data);
3176 }
3177 
3178 static void
3179 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
3180 {
3181 	uint32_t wd32 = 0;
3182 	uint delta_msec = 100;
3183 	uint elapsed_msec = 0;
3184 	uint timeout_msec;
3185 	ulong n;
3186 
3187 	if (vha->hw->pdev->subsystem_device != 0x0175 &&
3188 	    vha->hw->pdev->subsystem_device != 0x0240)
3189 		return;
3190 
3191 	wrt_reg_dword(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
3192 	udelay(100);
3193 
3194 attempt:
3195 	timeout_msec = TIMEOUT_SEMAPHORE;
3196 	n = timeout_msec / delta_msec;
3197 	while (n--) {
3198 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
3199 		qla25xx_read_risc_sema_reg(vha, &wd32);
3200 		if (wd32 & RISC_SEMAPHORE)
3201 			break;
3202 		msleep(delta_msec);
3203 		elapsed_msec += delta_msec;
3204 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
3205 			goto force;
3206 	}
3207 
3208 	if (!(wd32 & RISC_SEMAPHORE))
3209 		goto force;
3210 
3211 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
3212 		goto acquired;
3213 
3214 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
3215 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
3216 	n = timeout_msec / delta_msec;
3217 	while (n--) {
3218 		qla25xx_read_risc_sema_reg(vha, &wd32);
3219 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
3220 			break;
3221 		msleep(delta_msec);
3222 		elapsed_msec += delta_msec;
3223 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
3224 			goto force;
3225 	}
3226 
3227 	if (wd32 & RISC_SEMAPHORE_FORCE)
3228 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
3229 
3230 	goto attempt;
3231 
3232 force:
3233 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
3234 
3235 acquired:
3236 	return;
3237 }
3238 
3239 /**
3240  * qla24xx_reset_chip() - Reset ISP24xx chip.
3241  * @vha: HA context
3242  *
3243  * Returns 0 on success.
3244  */
3245 int
3246 qla24xx_reset_chip(scsi_qla_host_t *vha)
3247 {
3248 	struct qla_hw_data *ha = vha->hw;
3249 	int rval = QLA_FUNCTION_FAILED;
3250 
3251 	if (pci_channel_offline(ha->pdev) &&
3252 	    ha->flags.pci_channel_io_perm_failure) {
3253 		return rval;
3254 	}
3255 
3256 	ha->isp_ops->disable_intrs(ha);
3257 
3258 	qla25xx_manipulate_risc_semaphore(vha);
3259 
3260 	/* Perform RISC reset. */
3261 	rval = qla24xx_reset_risc(vha);
3262 
3263 	return rval;
3264 }
3265 
3266 /**
3267  * qla2x00_chip_diag() - Test chip for proper operation.
3268  * @vha: HA context
3269  *
3270  * Returns 0 on success.
3271  */
3272 int
3273 qla2x00_chip_diag(scsi_qla_host_t *vha)
3274 {
3275 	int		rval;
3276 	struct qla_hw_data *ha = vha->hw;
3277 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3278 	unsigned long	flags = 0;
3279 	uint16_t	data;
3280 	uint32_t	cnt;
3281 	uint16_t	mb[5];
3282 	struct req_que *req = ha->req_q_map[0];
3283 
3284 	/* Assume a failed state */
3285 	rval = QLA_FUNCTION_FAILED;
3286 
3287 	ql_dbg(ql_dbg_init, vha, 0x007b, "Testing device at %p.\n",
3288 	       &reg->flash_address);
3289 
3290 	spin_lock_irqsave(&ha->hardware_lock, flags);
3291 
3292 	/* Reset ISP chip. */
3293 	wrt_reg_word(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
3294 
3295 	/*
3296 	 * We need to have a delay here since the card will not respond while
3297 	 * in reset causing an MCA on some architectures.
3298 	 */
3299 	udelay(20);
3300 	data = qla2x00_debounce_register(&reg->ctrl_status);
3301 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
3302 		udelay(5);
3303 		data = rd_reg_word(&reg->ctrl_status);
3304 		barrier();
3305 	}
3306 
3307 	if (!cnt)
3308 		goto chip_diag_failed;
3309 
3310 	ql_dbg(ql_dbg_init, vha, 0x007c,
3311 	    "Reset register cleared by chip reset.\n");
3312 
3313 	/* Reset RISC processor. */
3314 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
3315 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
3316 
3317 	/* Workaround for QLA2312 PCI parity error */
3318 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
3319 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
3320 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
3321 			udelay(5);
3322 			data = RD_MAILBOX_REG(ha, reg, 0);
3323 			barrier();
3324 		}
3325 	} else
3326 		udelay(10);
3327 
3328 	if (!cnt)
3329 		goto chip_diag_failed;
3330 
3331 	/* Check product ID of chip */
3332 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product ID of chip.\n");
3333 
3334 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
3335 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
3336 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
3337 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
3338 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
3339 	    mb[3] != PROD_ID_3) {
3340 		ql_log(ql_log_warn, vha, 0x0062,
3341 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
3342 		    mb[1], mb[2], mb[3]);
3343 
3344 		goto chip_diag_failed;
3345 	}
3346 	ha->product_id[0] = mb[1];
3347 	ha->product_id[1] = mb[2];
3348 	ha->product_id[2] = mb[3];
3349 	ha->product_id[3] = mb[4];
3350 
3351 	/* Adjust fw RISC transfer size */
3352 	if (req->length > 1024)
3353 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
3354 	else
3355 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
3356 		    req->length;
3357 
3358 	if (IS_QLA2200(ha) &&
3359 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
3360 		/* Limit firmware transfer size with a 2200A */
3361 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
3362 
3363 		ha->device_type |= DT_ISP2200A;
3364 		ha->fw_transfer_size = 128;
3365 	}
3366 
3367 	/* Wrap Incoming Mailboxes Test. */
3368 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3369 
3370 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
3371 	rval = qla2x00_mbx_reg_test(vha);
3372 	if (rval)
3373 		ql_log(ql_log_warn, vha, 0x0080,
3374 		    "Failed mailbox send register test.\n");
3375 	else
3376 		/* Flag a successful rval */
3377 		rval = QLA_SUCCESS;
3378 	spin_lock_irqsave(&ha->hardware_lock, flags);
3379 
3380 chip_diag_failed:
3381 	if (rval)
3382 		ql_log(ql_log_info, vha, 0x0081,
3383 		    "Chip diagnostics **** FAILED ****.\n");
3384 
3385 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
3386 
3387 	return (rval);
3388 }
3389 
3390 /**
3391  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
3392  * @vha: HA context
3393  *
3394  * Returns 0 on success.
3395  */
3396 int
3397 qla24xx_chip_diag(scsi_qla_host_t *vha)
3398 {
3399 	int rval;
3400 	struct qla_hw_data *ha = vha->hw;
3401 	struct req_que *req = ha->req_q_map[0];
3402 
3403 	if (IS_P3P_TYPE(ha))
3404 		return QLA_SUCCESS;
3405 
3406 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
3407 
3408 	rval = qla2x00_mbx_reg_test(vha);
3409 	if (rval) {
3410 		ql_log(ql_log_warn, vha, 0x0082,
3411 		    "Failed mailbox send register test.\n");
3412 	} else {
3413 		/* Flag a successful rval */
3414 		rval = QLA_SUCCESS;
3415 	}
3416 
3417 	return rval;
3418 }
3419 
3420 static void
3421 qla2x00_init_fce_trace(scsi_qla_host_t *vha)
3422 {
3423 	int rval;
3424 	dma_addr_t tc_dma;
3425 	void *tc;
3426 	struct qla_hw_data *ha = vha->hw;
3427 
3428 	if (!IS_FWI2_CAPABLE(ha))
3429 		return;
3430 
3431 	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3432 	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3433 		return;
3434 
3435 	if (ha->fce) {
3436 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3437 		       "%s: FCE Mem is already allocated.\n",
3438 		       __func__);
3439 		return;
3440 	}
3441 
3442 	/* Allocate memory for Fibre Channel Event Buffer. */
3443 	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
3444 				GFP_KERNEL);
3445 	if (!tc) {
3446 		ql_log(ql_log_warn, vha, 0x00be,
3447 		       "Unable to allocate (%d KB) for FCE.\n",
3448 		       FCE_SIZE / 1024);
3449 		return;
3450 	}
3451 
3452 	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
3453 					ha->fce_mb, &ha->fce_bufs);
3454 	if (rval) {
3455 		ql_log(ql_log_warn, vha, 0x00bf,
3456 		       "Unable to initialize FCE (%d).\n", rval);
3457 		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
3458 		return;
3459 	}
3460 
3461 	ql_dbg(ql_dbg_init, vha, 0x00c0,
3462 	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
3463 
3464 	ha->flags.fce_enabled = 1;
3465 	ha->fce_dma = tc_dma;
3466 	ha->fce = tc;
3467 }
3468 
3469 static void
3470 qla2x00_init_eft_trace(scsi_qla_host_t *vha)
3471 {
3472 	int rval;
3473 	dma_addr_t tc_dma;
3474 	void *tc;
3475 	struct qla_hw_data *ha = vha->hw;
3476 
3477 	if (!IS_FWI2_CAPABLE(ha))
3478 		return;
3479 
3480 	if (ha->eft) {
3481 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3482 		    "%s: EFT Mem is already allocated.\n",
3483 		    __func__);
3484 		return;
3485 	}
3486 
3487 	/* Allocate memory for Extended Trace Buffer. */
3488 	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
3489 				GFP_KERNEL);
3490 	if (!tc) {
3491 		ql_log(ql_log_warn, vha, 0x00c1,
3492 		       "Unable to allocate (%d KB) for EFT.\n",
3493 		       EFT_SIZE / 1024);
3494 		return;
3495 	}
3496 
3497 	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
3498 	if (rval) {
3499 		ql_log(ql_log_warn, vha, 0x00c2,
3500 		       "Unable to initialize EFT (%d).\n", rval);
3501 		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
3502 		return;
3503 	}
3504 
3505 	ql_dbg(ql_dbg_init, vha, 0x00c3,
3506 	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
3507 
3508 	ha->eft_dma = tc_dma;
3509 	ha->eft = tc;
3510 }
3511 
3512 static void
3513 qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
3514 {
3515 	qla2x00_init_fce_trace(vha);
3516 	qla2x00_init_eft_trace(vha);
3517 }
3518 
3519 void
3520 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
3521 {
3522 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
3523 	    eft_size, fce_size, mq_size;
3524 	struct qla_hw_data *ha = vha->hw;
3525 	struct req_que *req = ha->req_q_map[0];
3526 	struct rsp_que *rsp = ha->rsp_q_map[0];
3527 	struct qla2xxx_fw_dump *fw_dump;
3528 
3529 	if (ha->fw_dump) {
3530 		ql_dbg(ql_dbg_init, vha, 0x00bd,
3531 		    "Firmware dump already allocated.\n");
3532 		return;
3533 	}
3534 
3535 	ha->fw_dumped = 0;
3536 	ha->fw_dump_cap_flags = 0;
3537 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
3538 	req_q_size = rsp_q_size = 0;
3539 
3540 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
3541 		fixed_size = sizeof(struct qla2100_fw_dump);
3542 	} else if (IS_QLA23XX(ha)) {
3543 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
3544 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
3545 		    sizeof(uint16_t);
3546 	} else if (IS_FWI2_CAPABLE(ha)) {
3547 		if (IS_QLA83XX(ha))
3548 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
3549 		else if (IS_QLA81XX(ha))
3550 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
3551 		else if (IS_QLA25XX(ha))
3552 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
3553 		else
3554 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
3555 
3556 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
3557 		    sizeof(uint32_t);
3558 		if (ha->mqenable) {
3559 			if (!IS_QLA83XX(ha))
3560 				mq_size = sizeof(struct qla2xxx_mq_chain);
3561 			/*
3562 			 * Allocate maximum buffer size for all queues - Q0.
3563 			 * Resizing must be done at end-of-dump processing.
3564 			 */
3565 			mq_size += (ha->max_req_queues - 1) *
3566 			    (req->length * sizeof(request_t));
3567 			mq_size += (ha->max_rsp_queues - 1) *
3568 			    (rsp->length * sizeof(response_t));
3569 		}
3570 		if (ha->tgt.atio_ring)
3571 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
3572 
3573 		qla2x00_init_fce_trace(vha);
3574 		if (ha->fce)
3575 			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
3576 		qla2x00_init_eft_trace(vha);
3577 		if (ha->eft)
3578 			eft_size = EFT_SIZE;
3579 	}
3580 
3581 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3582 		struct fwdt *fwdt = ha->fwdt;
3583 		uint j;
3584 
3585 		for (j = 0; j < 2; j++, fwdt++) {
3586 			if (!fwdt->template) {
3587 				ql_dbg(ql_dbg_init, vha, 0x00ba,
3588 				    "-> fwdt%u no template\n", j);
3589 				continue;
3590 			}
3591 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3592 			    "-> fwdt%u calculating fwdump size...\n", j);
3593 			fwdt->dump_size = qla27xx_fwdt_calculate_dump_size(
3594 			    vha, fwdt->template);
3595 			ql_dbg(ql_dbg_init, vha, 0x00fa,
3596 			    "-> fwdt%u calculated fwdump size = %#lx bytes\n",
3597 			    j, fwdt->dump_size);
3598 			dump_size += fwdt->dump_size;
3599 		}
3600 		/* Add space for spare MPI fw dump. */
3601 		dump_size += ha->fwdt[1].dump_size;
3602 	} else {
3603 		req_q_size = req->length * sizeof(request_t);
3604 		rsp_q_size = rsp->length * sizeof(response_t);
3605 		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
3606 		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
3607 			+ eft_size;
3608 		ha->chain_offset = dump_size;
3609 		dump_size += mq_size + fce_size;
3610 		if (ha->exchoffld_buf)
3611 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3612 				ha->exchoffld_size;
3613 		if (ha->exlogin_buf)
3614 			dump_size += sizeof(struct qla2xxx_offld_chain) +
3615 				ha->exlogin_size;
3616 	}
3617 
3618 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
3619 
3620 		ql_dbg(ql_dbg_init, vha, 0x00c5,
3621 		    "%s dump_size %d fw_dump_len %d fw_dump_alloc_len %d\n",
3622 		    __func__, dump_size, ha->fw_dump_len,
3623 		    ha->fw_dump_alloc_len);
3624 
3625 		fw_dump = vmalloc(dump_size);
3626 		if (!fw_dump) {
3627 			ql_log(ql_log_warn, vha, 0x00c4,
3628 			    "Unable to allocate (%d KB) for firmware dump.\n",
3629 			    dump_size / 1024);
3630 		} else {
3631 			mutex_lock(&ha->optrom_mutex);
3632 			if (ha->fw_dumped) {
3633 				memcpy(fw_dump, ha->fw_dump, ha->fw_dump_len);
3634 				vfree(ha->fw_dump);
3635 				ha->fw_dump = fw_dump;
3636 				ha->fw_dump_alloc_len =  dump_size;
3637 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3638 				    "Re-Allocated (%d KB) and save firmware dump.\n",
3639 				    dump_size / 1024);
3640 			} else {
3641 				vfree(ha->fw_dump);
3642 				ha->fw_dump = fw_dump;
3643 
3644 				ha->fw_dump_len = ha->fw_dump_alloc_len =
3645 				    dump_size;
3646 				ql_dbg(ql_dbg_init, vha, 0x00c5,
3647 				    "Allocated (%d KB) for firmware dump.\n",
3648 				    dump_size / 1024);
3649 
3650 				if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3651 					ha->mpi_fw_dump = (char *)fw_dump +
3652 						ha->fwdt[1].dump_size;
3653 					mutex_unlock(&ha->optrom_mutex);
3654 					return;
3655 				}
3656 
3657 				ha->fw_dump->signature[0] = 'Q';
3658 				ha->fw_dump->signature[1] = 'L';
3659 				ha->fw_dump->signature[2] = 'G';
3660 				ha->fw_dump->signature[3] = 'C';
3661 				ha->fw_dump->version = htonl(1);
3662 
3663 				ha->fw_dump->fixed_size = htonl(fixed_size);
3664 				ha->fw_dump->mem_size = htonl(mem_size);
3665 				ha->fw_dump->req_q_size = htonl(req_q_size);
3666 				ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
3667 
3668 				ha->fw_dump->eft_size = htonl(eft_size);
3669 				ha->fw_dump->eft_addr_l =
3670 				    htonl(LSD(ha->eft_dma));
3671 				ha->fw_dump->eft_addr_h =
3672 				    htonl(MSD(ha->eft_dma));
3673 
3674 				ha->fw_dump->header_size =
3675 					htonl(offsetof
3676 					    (struct qla2xxx_fw_dump, isp));
3677 			}
3678 			mutex_unlock(&ha->optrom_mutex);
3679 		}
3680 	}
3681 }
3682 
3683 static int
3684 qla81xx_mpi_sync(scsi_qla_host_t *vha)
3685 {
3686 #define MPS_MASK	0xe0
3687 	int rval;
3688 	uint16_t dc;
3689 	uint32_t dw;
3690 
3691 	if (!IS_QLA81XX(vha->hw))
3692 		return QLA_SUCCESS;
3693 
3694 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
3695 	if (rval != QLA_SUCCESS) {
3696 		ql_log(ql_log_warn, vha, 0x0105,
3697 		    "Unable to acquire semaphore.\n");
3698 		goto done;
3699 	}
3700 
3701 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
3702 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
3703 	if (rval != QLA_SUCCESS) {
3704 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
3705 		goto done_release;
3706 	}
3707 
3708 	dc &= MPS_MASK;
3709 	if (dc == (dw & MPS_MASK))
3710 		goto done_release;
3711 
3712 	dw &= ~MPS_MASK;
3713 	dw |= dc;
3714 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
3715 	if (rval != QLA_SUCCESS) {
3716 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
3717 	}
3718 
3719 done_release:
3720 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
3721 	if (rval != QLA_SUCCESS) {
3722 		ql_log(ql_log_warn, vha, 0x006d,
3723 		    "Unable to release semaphore.\n");
3724 	}
3725 
3726 done:
3727 	return rval;
3728 }
3729 
3730 int
3731 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
3732 {
3733 	/* Don't try to reallocate the array */
3734 	if (req->outstanding_cmds)
3735 		return QLA_SUCCESS;
3736 
3737 	if (!IS_FWI2_CAPABLE(ha))
3738 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
3739 	else {
3740 		if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
3741 			req->num_outstanding_cmds = ha->cur_fw_xcb_count;
3742 		else
3743 			req->num_outstanding_cmds = ha->cur_fw_iocb_count;
3744 	}
3745 
3746 	req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3747 					sizeof(srb_t *),
3748 					GFP_KERNEL);
3749 
3750 	if (!req->outstanding_cmds) {
3751 		/*
3752 		 * Try to allocate a minimal size just so we can get through
3753 		 * initialization.
3754 		 */
3755 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
3756 		req->outstanding_cmds = kcalloc(req->num_outstanding_cmds,
3757 						sizeof(srb_t *),
3758 						GFP_KERNEL);
3759 
3760 		if (!req->outstanding_cmds) {
3761 			ql_log(ql_log_fatal, NULL, 0x0126,
3762 			    "Failed to allocate memory for "
3763 			    "outstanding_cmds for req_que %p.\n", req);
3764 			req->num_outstanding_cmds = 0;
3765 			return QLA_FUNCTION_FAILED;
3766 		}
3767 	}
3768 
3769 	return QLA_SUCCESS;
3770 }
3771 
3772 #define PRINT_FIELD(_field, _flag, _str) {		\
3773 	if (a0->_field & _flag) {\
3774 		if (p) {\
3775 			strcat(ptr, "|");\
3776 			ptr++;\
3777 			leftover--;\
3778 		} \
3779 		len = snprintf(ptr, leftover, "%s", _str);	\
3780 		p = 1;\
3781 		leftover -= len;\
3782 		ptr += len; \
3783 	} \
3784 }
3785 
3786 static void qla2xxx_print_sfp_info(struct scsi_qla_host *vha)
3787 {
3788 #define STR_LEN 64
3789 	struct sff_8247_a0 *a0 = (struct sff_8247_a0 *)vha->hw->sfp_data;
3790 	u8 str[STR_LEN], *ptr, p;
3791 	int leftover, len;
3792 
3793 	memset(str, 0, STR_LEN);
3794 	snprintf(str, SFF_VEN_NAME_LEN+1, a0->vendor_name);
3795 	ql_dbg(ql_dbg_init, vha, 0x015a,
3796 	    "SFP MFG Name: %s\n", str);
3797 
3798 	memset(str, 0, STR_LEN);
3799 	snprintf(str, SFF_PART_NAME_LEN+1, a0->vendor_pn);
3800 	ql_dbg(ql_dbg_init, vha, 0x015c,
3801 	    "SFP Part Name: %s\n", str);
3802 
3803 	/* media */
3804 	memset(str, 0, STR_LEN);
3805 	ptr = str;
3806 	leftover = STR_LEN;
3807 	p = len = 0;
3808 	PRINT_FIELD(fc_med_cc9, FC_MED_TW, "Twin AX");
3809 	PRINT_FIELD(fc_med_cc9, FC_MED_TP, "Twisted Pair");
3810 	PRINT_FIELD(fc_med_cc9, FC_MED_MI, "Min Coax");
3811 	PRINT_FIELD(fc_med_cc9, FC_MED_TV, "Video Coax");
3812 	PRINT_FIELD(fc_med_cc9, FC_MED_M6, "MultiMode 62.5um");
3813 	PRINT_FIELD(fc_med_cc9, FC_MED_M5, "MultiMode 50um");
3814 	PRINT_FIELD(fc_med_cc9, FC_MED_SM, "SingleMode");
3815 	ql_dbg(ql_dbg_init, vha, 0x0160,
3816 	    "SFP Media: %s\n", str);
3817 
3818 	/* link length */
3819 	memset(str, 0, STR_LEN);
3820 	ptr = str;
3821 	leftover = STR_LEN;
3822 	p = len = 0;
3823 	PRINT_FIELD(fc_ll_cc7, FC_LL_VL, "Very Long");
3824 	PRINT_FIELD(fc_ll_cc7, FC_LL_S, "Short");
3825 	PRINT_FIELD(fc_ll_cc7, FC_LL_I, "Intermediate");
3826 	PRINT_FIELD(fc_ll_cc7, FC_LL_L, "Long");
3827 	PRINT_FIELD(fc_ll_cc7, FC_LL_M, "Medium");
3828 	ql_dbg(ql_dbg_init, vha, 0x0196,
3829 	    "SFP Link Length: %s\n", str);
3830 
3831 	memset(str, 0, STR_LEN);
3832 	ptr = str;
3833 	leftover = STR_LEN;
3834 	p = len = 0;
3835 	PRINT_FIELD(fc_ll_cc7, FC_LL_SA, "Short Wave (SA)");
3836 	PRINT_FIELD(fc_ll_cc7, FC_LL_LC, "Long Wave(LC)");
3837 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SN, "Short Wave (SN)");
3838 	PRINT_FIELD(fc_tec_cc8, FC_TEC_SL, "Short Wave (SL)");
3839 	PRINT_FIELD(fc_tec_cc8, FC_TEC_LL, "Long Wave (LL)");
3840 	ql_dbg(ql_dbg_init, vha, 0x016e,
3841 	    "SFP FC Link Tech: %s\n", str);
3842 
3843 	if (a0->length_km)
3844 		ql_dbg(ql_dbg_init, vha, 0x016f,
3845 		    "SFP Distant: %d km\n", a0->length_km);
3846 	if (a0->length_100m)
3847 		ql_dbg(ql_dbg_init, vha, 0x0170,
3848 		    "SFP Distant: %d m\n", a0->length_100m*100);
3849 	if (a0->length_50um_10m)
3850 		ql_dbg(ql_dbg_init, vha, 0x0189,
3851 		    "SFP Distant (WL=50um): %d m\n", a0->length_50um_10m * 10);
3852 	if (a0->length_62um_10m)
3853 		ql_dbg(ql_dbg_init, vha, 0x018a,
3854 		  "SFP Distant (WL=62.5um): %d m\n", a0->length_62um_10m * 10);
3855 	if (a0->length_om4_10m)
3856 		ql_dbg(ql_dbg_init, vha, 0x0194,
3857 		    "SFP Distant (OM4): %d m\n", a0->length_om4_10m * 10);
3858 	if (a0->length_om3_10m)
3859 		ql_dbg(ql_dbg_init, vha, 0x0195,
3860 		    "SFP Distant (OM3): %d m\n", a0->length_om3_10m * 10);
3861 }
3862 
3863 
3864 /**
3865  * qla24xx_detect_sfp()
3866  *
3867  * @vha: adapter state pointer.
3868  *
3869  * @return
3870  *	0 -- Configure firmware to use short-range settings -- normal
3871  *	     buffer-to-buffer credits.
3872  *
3873  *	1 -- Configure firmware to use long-range settings -- extra
3874  *	     buffer-to-buffer credits should be allocated with
3875  *	     ha->lr_distance containing distance settings from NVRAM or SFP
3876  *	     (if supported).
3877  */
3878 int
3879 qla24xx_detect_sfp(scsi_qla_host_t *vha)
3880 {
3881 	int rc, used_nvram;
3882 	struct sff_8247_a0 *a;
3883 	struct qla_hw_data *ha = vha->hw;
3884 	struct nvram_81xx *nv = ha->nvram;
3885 #define LR_DISTANCE_UNKNOWN	2
3886 	static const char * const types[] = { "Short", "Long" };
3887 	static const char * const lengths[] = { "(10km)", "(5km)", "" };
3888 	u8 ll = 0;
3889 
3890 	/* Seed with NVRAM settings. */
3891 	used_nvram = 0;
3892 	ha->flags.lr_detected = 0;
3893 	if (IS_BPM_RANGE_CAPABLE(ha) &&
3894 	    (nv->enhanced_features & NEF_LR_DIST_ENABLE)) {
3895 		used_nvram = 1;
3896 		ha->flags.lr_detected = 1;
3897 		ha->lr_distance =
3898 		    (nv->enhanced_features >> LR_DIST_NV_POS)
3899 		     & LR_DIST_NV_MASK;
3900 	}
3901 
3902 	if (!IS_BPM_ENABLED(vha))
3903 		goto out;
3904 	/* Determine SR/LR capabilities of SFP/Transceiver. */
3905 	rc = qla2x00_read_sfp_dev(vha, NULL, 0);
3906 	if (rc)
3907 		goto out;
3908 
3909 	used_nvram = 0;
3910 	a = (struct sff_8247_a0 *)vha->hw->sfp_data;
3911 	qla2xxx_print_sfp_info(vha);
3912 
3913 	ha->flags.lr_detected = 0;
3914 	ll = a->fc_ll_cc7;
3915 	if (ll & FC_LL_VL || ll & FC_LL_L) {
3916 		/* Long range, track length. */
3917 		ha->flags.lr_detected = 1;
3918 
3919 		if (a->length_km > 5 || a->length_100m > 50)
3920 			ha->lr_distance = LR_DISTANCE_10K;
3921 		else
3922 			ha->lr_distance = LR_DISTANCE_5K;
3923 	}
3924 
3925 out:
3926 	ql_dbg(ql_dbg_async, vha, 0x507b,
3927 	    "SFP detect: %s-Range SFP %s (nvr=%x ll=%x lr=%x lrd=%x).\n",
3928 	    types[ha->flags.lr_detected],
3929 	    ha->flags.lr_detected ? lengths[ha->lr_distance] :
3930 	       lengths[LR_DISTANCE_UNKNOWN],
3931 	    used_nvram, ll, ha->flags.lr_detected, ha->lr_distance);
3932 	return ha->flags.lr_detected;
3933 }
3934 
3935 void qla_init_iocb_limit(scsi_qla_host_t *vha)
3936 {
3937 	u16 i, num_qps;
3938 	u32 limit;
3939 	struct qla_hw_data *ha = vha->hw;
3940 
3941 	num_qps = ha->num_qpairs + 1;
3942 	limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100;
3943 
3944 	ha->base_qpair->fwres.iocbs_total = ha->orig_fw_iocb_count;
3945 	ha->base_qpair->fwres.iocbs_limit = limit;
3946 	ha->base_qpair->fwres.iocbs_qp_limit = limit / num_qps;
3947 	ha->base_qpair->fwres.iocbs_used = 0;
3948 
3949 	ha->base_qpair->fwres.exch_total = ha->orig_fw_xcb_count;
3950 	ha->base_qpair->fwres.exch_limit = (ha->orig_fw_xcb_count *
3951 					    QLA_IOCB_PCT_LIMIT) / 100;
3952 	ha->base_qpair->fwres.exch_used  = 0;
3953 
3954 	for (i = 0; i < ha->max_qpairs; i++) {
3955 		if (ha->queue_pair_map[i])  {
3956 			ha->queue_pair_map[i]->fwres.iocbs_total =
3957 				ha->orig_fw_iocb_count;
3958 			ha->queue_pair_map[i]->fwres.iocbs_limit = limit;
3959 			ha->queue_pair_map[i]->fwres.iocbs_qp_limit =
3960 				limit / num_qps;
3961 			ha->queue_pair_map[i]->fwres.iocbs_used = 0;
3962 			ha->queue_pair_map[i]->fwres.exch_total = ha->orig_fw_xcb_count;
3963 			ha->queue_pair_map[i]->fwres.exch_limit =
3964 				(ha->orig_fw_xcb_count * QLA_IOCB_PCT_LIMIT) / 100;
3965 			ha->queue_pair_map[i]->fwres.exch_used = 0;
3966 		}
3967 	}
3968 }
3969 
3970 /**
3971  * qla2x00_setup_chip() - Load and start RISC firmware.
3972  * @vha: HA context
3973  *
3974  * Returns 0 on success.
3975  */
3976 static int
3977 qla2x00_setup_chip(scsi_qla_host_t *vha)
3978 {
3979 	int rval;
3980 	uint32_t srisc_address = 0;
3981 	struct qla_hw_data *ha = vha->hw;
3982 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3983 	unsigned long flags;
3984 	uint16_t fw_major_version;
3985 	int done_once = 0;
3986 
3987 	if (IS_P3P_TYPE(ha)) {
3988 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
3989 		if (rval == QLA_SUCCESS) {
3990 			qla2x00_stop_firmware(vha);
3991 			goto enable_82xx_npiv;
3992 		} else
3993 			goto failed;
3994 	}
3995 
3996 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
3997 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
3998 		spin_lock_irqsave(&ha->hardware_lock, flags);
3999 		wrt_reg_word(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
4000 		rd_reg_word(&reg->hccr);
4001 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
4002 	}
4003 
4004 	qla81xx_mpi_sync(vha);
4005 
4006 execute_fw_with_lr:
4007 	/* Load firmware sequences */
4008 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
4009 	if (rval == QLA_SUCCESS) {
4010 		ql_dbg(ql_dbg_init, vha, 0x00c9,
4011 		    "Verifying Checksum of loaded RISC code.\n");
4012 
4013 		rval = qla2x00_verify_checksum(vha, srisc_address);
4014 		if (rval == QLA_SUCCESS) {
4015 			/* Start firmware execution. */
4016 			ql_dbg(ql_dbg_init, vha, 0x00ca,
4017 			    "Starting firmware.\n");
4018 
4019 			if (ql2xexlogins)
4020 				ha->flags.exlogins_enabled = 1;
4021 
4022 			if (qla_is_exch_offld_enabled(vha))
4023 				ha->flags.exchoffld_enabled = 1;
4024 
4025 			rval = qla2x00_execute_fw(vha, srisc_address);
4026 			/* Retrieve firmware information. */
4027 			if (rval == QLA_SUCCESS) {
4028 				/* Enable BPM support? */
4029 				if (!done_once++ && qla24xx_detect_sfp(vha)) {
4030 					ql_dbg(ql_dbg_init, vha, 0x00ca,
4031 					    "Re-starting firmware -- BPM.\n");
4032 					/* Best-effort - re-init. */
4033 					ha->isp_ops->reset_chip(vha);
4034 					ha->isp_ops->chip_diag(vha);
4035 					goto execute_fw_with_lr;
4036 				}
4037 
4038 				if (IS_ZIO_THRESHOLD_CAPABLE(ha))
4039 					qla27xx_set_zio_threshold(vha,
4040 					    ha->last_zio_threshold);
4041 
4042 				rval = qla2x00_set_exlogins_buffer(vha);
4043 				if (rval != QLA_SUCCESS)
4044 					goto failed;
4045 
4046 				rval = qla2x00_set_exchoffld_buffer(vha);
4047 				if (rval != QLA_SUCCESS)
4048 					goto failed;
4049 
4050 enable_82xx_npiv:
4051 				fw_major_version = ha->fw_major_version;
4052 				if (IS_P3P_TYPE(ha))
4053 					qla82xx_check_md_needed(vha);
4054 				else
4055 					rval = qla2x00_get_fw_version(vha);
4056 				if (rval != QLA_SUCCESS)
4057 					goto failed;
4058 				ha->flags.npiv_supported = 0;
4059 				if (IS_QLA2XXX_MIDTYPE(ha) &&
4060 					 (ha->fw_attributes & BIT_2)) {
4061 					ha->flags.npiv_supported = 1;
4062 					if ((!ha->max_npiv_vports) ||
4063 					    ((ha->max_npiv_vports + 1) %
4064 					    MIN_MULTI_ID_FABRIC))
4065 						ha->max_npiv_vports =
4066 						    MIN_MULTI_ID_FABRIC - 1;
4067 				}
4068 				qla2x00_get_resource_cnts(vha);
4069 				qla_init_iocb_limit(vha);
4070 
4071 				/*
4072 				 * Allocate the array of outstanding commands
4073 				 * now that we know the firmware resources.
4074 				 */
4075 				rval = qla2x00_alloc_outstanding_cmds(ha,
4076 				    vha->req);
4077 				if (rval != QLA_SUCCESS)
4078 					goto failed;
4079 
4080 				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
4081 					qla2x00_alloc_offload_mem(vha);
4082 
4083 				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
4084 					qla2x00_alloc_fw_dump(vha);
4085 
4086 			} else {
4087 				goto failed;
4088 			}
4089 		} else {
4090 			ql_log(ql_log_fatal, vha, 0x00cd,
4091 			    "ISP Firmware failed checksum.\n");
4092 			goto failed;
4093 		}
4094 
4095 		/* Enable PUREX PASSTHRU */
4096 		if (ql2xrdpenable || ha->flags.scm_supported_f ||
4097 		    ha->flags.edif_enabled)
4098 			qla25xx_set_els_cmds_supported(vha);
4099 	} else
4100 		goto failed;
4101 
4102 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
4103 		/* Enable proper parity. */
4104 		spin_lock_irqsave(&ha->hardware_lock, flags);
4105 		if (IS_QLA2300(ha))
4106 			/* SRAM parity */
4107 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
4108 		else
4109 			/* SRAM, Instruction RAM and GP RAM parity */
4110 			wrt_reg_word(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
4111 		rd_reg_word(&reg->hccr);
4112 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
4113 	}
4114 
4115 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
4116 		ha->flags.fac_supported = 1;
4117 	else if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
4118 		uint32_t size;
4119 
4120 		rval = qla81xx_fac_get_sector_size(vha, &size);
4121 		if (rval == QLA_SUCCESS) {
4122 			ha->flags.fac_supported = 1;
4123 			ha->fdt_block_size = size << 2;
4124 		} else {
4125 			ql_log(ql_log_warn, vha, 0x00ce,
4126 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
4127 			    ha->fw_major_version, ha->fw_minor_version,
4128 			    ha->fw_subminor_version);
4129 
4130 			if (IS_QLA83XX(ha)) {
4131 				ha->flags.fac_supported = 0;
4132 				rval = QLA_SUCCESS;
4133 			}
4134 		}
4135 	}
4136 failed:
4137 	if (rval) {
4138 		ql_log(ql_log_fatal, vha, 0x00cf,
4139 		    "Setup chip ****FAILED****.\n");
4140 	}
4141 
4142 	return (rval);
4143 }
4144 
4145 /**
4146  * qla2x00_init_response_q_entries() - Initializes response queue entries.
4147  * @rsp: response queue
4148  *
4149  * Beginning of request ring has initialization control block already built
4150  * by nvram config routine.
4151  *
4152  * Returns 0 on success.
4153  */
4154 void
4155 qla2x00_init_response_q_entries(struct rsp_que *rsp)
4156 {
4157 	uint16_t cnt;
4158 	response_t *pkt;
4159 
4160 	rsp->ring_ptr = rsp->ring;
4161 	rsp->ring_index    = 0;
4162 	rsp->status_srb = NULL;
4163 	pkt = rsp->ring_ptr;
4164 	for (cnt = 0; cnt < rsp->length; cnt++) {
4165 		pkt->signature = RESPONSE_PROCESSED;
4166 		pkt++;
4167 	}
4168 }
4169 
4170 /**
4171  * qla2x00_update_fw_options() - Read and process firmware options.
4172  * @vha: HA context
4173  *
4174  * Returns 0 on success.
4175  */
4176 void
4177 qla2x00_update_fw_options(scsi_qla_host_t *vha)
4178 {
4179 	uint16_t swing, emphasis, tx_sens, rx_sens;
4180 	struct qla_hw_data *ha = vha->hw;
4181 
4182 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
4183 	qla2x00_get_fw_options(vha, ha->fw_options);
4184 
4185 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
4186 		return;
4187 
4188 	/* Serial Link options. */
4189 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
4190 	    "Serial link options.\n");
4191 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
4192 	    ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options));
4193 
4194 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
4195 	if (ha->fw_seriallink_options[3] & BIT_2) {
4196 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
4197 
4198 		/*  1G settings */
4199 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
4200 		emphasis = (ha->fw_seriallink_options[2] &
4201 		    (BIT_4 | BIT_3)) >> 3;
4202 		tx_sens = ha->fw_seriallink_options[0] &
4203 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4204 		rx_sens = (ha->fw_seriallink_options[0] &
4205 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
4206 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
4207 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
4208 			if (rx_sens == 0x0)
4209 				rx_sens = 0x3;
4210 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
4211 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
4212 			ha->fw_options[10] |= BIT_5 |
4213 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
4214 			    (tx_sens & (BIT_1 | BIT_0));
4215 
4216 		/*  2G settings */
4217 		swing = (ha->fw_seriallink_options[2] &
4218 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
4219 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
4220 		tx_sens = ha->fw_seriallink_options[1] &
4221 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4222 		rx_sens = (ha->fw_seriallink_options[1] &
4223 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
4224 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
4225 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
4226 			if (rx_sens == 0x0)
4227 				rx_sens = 0x3;
4228 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
4229 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
4230 			ha->fw_options[11] |= BIT_5 |
4231 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
4232 			    (tx_sens & (BIT_1 | BIT_0));
4233 	}
4234 
4235 	/* FCP2 options. */
4236 	/*  Return command IOCBs without waiting for an ABTS to complete. */
4237 	ha->fw_options[3] |= BIT_13;
4238 
4239 	/* LED scheme. */
4240 	if (ha->flags.enable_led_scheme)
4241 		ha->fw_options[2] |= BIT_12;
4242 
4243 	/* Detect ISP6312. */
4244 	if (IS_QLA6312(ha))
4245 		ha->fw_options[2] |= BIT_13;
4246 
4247 	/* Set Retry FLOGI in case of P2P connection */
4248 	if (ha->operating_mode == P2P) {
4249 		ha->fw_options[2] |= BIT_3;
4250 		ql_dbg(ql_dbg_disc, vha, 0x2100,
4251 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
4252 			__func__, ha->fw_options[2]);
4253 	}
4254 
4255 	/* Update firmware options. */
4256 	qla2x00_set_fw_options(vha, ha->fw_options);
4257 }
4258 
4259 void
4260 qla24xx_update_fw_options(scsi_qla_host_t *vha)
4261 {
4262 	int rval;
4263 	struct qla_hw_data *ha = vha->hw;
4264 
4265 	if (IS_P3P_TYPE(ha))
4266 		return;
4267 
4268 	/*  Hold status IOCBs until ABTS response received. */
4269 	if (ql2xfwholdabts)
4270 		ha->fw_options[3] |= BIT_12;
4271 
4272 	/* Set Retry FLOGI in case of P2P connection */
4273 	if (ha->operating_mode == P2P) {
4274 		ha->fw_options[2] |= BIT_3;
4275 		ql_dbg(ql_dbg_disc, vha, 0x2101,
4276 		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
4277 			__func__, ha->fw_options[2]);
4278 	}
4279 
4280 	/* Move PUREX, ABTS RX & RIDA to ATIOQ */
4281 	if (ql2xmvasynctoatio && !ha->flags.edif_enabled &&
4282 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) {
4283 		if (qla_tgt_mode_enabled(vha) ||
4284 		    qla_dual_mode_enabled(vha))
4285 			ha->fw_options[2] |= BIT_11;
4286 		else
4287 			ha->fw_options[2] &= ~BIT_11;
4288 	}
4289 
4290 	if (IS_QLA25XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4291 	    IS_QLA28XX(ha)) {
4292 		/*
4293 		 * Tell FW to track each exchange to prevent
4294 		 * driver from using stale exchange.
4295 		 */
4296 		if (qla_tgt_mode_enabled(vha) ||
4297 		    qla_dual_mode_enabled(vha))
4298 			ha->fw_options[2] |= BIT_4;
4299 		else
4300 			ha->fw_options[2] &= ~(BIT_4);
4301 
4302 		/* Reserve 1/2 of emergency exchanges for ELS.*/
4303 		if (qla2xuseresexchforels)
4304 			ha->fw_options[2] |= BIT_8;
4305 		else
4306 			ha->fw_options[2] &= ~BIT_8;
4307 
4308 		/*
4309 		 * N2N: set Secure=1 for PLOGI ACC and
4310 		 * fw shal not send PRLI after PLOGI Acc
4311 		 */
4312 		if (ha->flags.edif_enabled &&
4313 		    DBELL_ACTIVE(vha)) {
4314 			ha->fw_options[3] |= BIT_15;
4315 			ha->flags.n2n_fw_acc_sec = 1;
4316 		} else {
4317 			ha->fw_options[3] &= ~BIT_15;
4318 			ha->flags.n2n_fw_acc_sec = 0;
4319 		}
4320 	}
4321 
4322 	if (ql2xrdpenable || ha->flags.scm_supported_f ||
4323 	    ha->flags.edif_enabled)
4324 		ha->fw_options[1] |= ADD_FO1_ENABLE_PUREX_IOCB;
4325 
4326 	/* Enable Async 8130/8131 events -- transceiver insertion/removal */
4327 	if (IS_BPM_RANGE_CAPABLE(ha))
4328 		ha->fw_options[3] |= BIT_10;
4329 
4330 	ql_dbg(ql_dbg_init, vha, 0x00e8,
4331 	    "%s, add FW options 1-3 = 0x%04x 0x%04x 0x%04x mode %x\n",
4332 	    __func__, ha->fw_options[1], ha->fw_options[2],
4333 	    ha->fw_options[3], vha->host->active_mode);
4334 
4335 	if (ha->fw_options[1] || ha->fw_options[2] || ha->fw_options[3])
4336 		qla2x00_set_fw_options(vha, ha->fw_options);
4337 
4338 	/* Update Serial Link options. */
4339 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
4340 		return;
4341 
4342 	rval = qla2x00_set_serdes_params(vha,
4343 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
4344 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
4345 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
4346 	if (rval != QLA_SUCCESS) {
4347 		ql_log(ql_log_warn, vha, 0x0104,
4348 		    "Unable to update Serial Link options (%x).\n", rval);
4349 	}
4350 }
4351 
4352 void
4353 qla2x00_config_rings(struct scsi_qla_host *vha)
4354 {
4355 	struct qla_hw_data *ha = vha->hw;
4356 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4357 	struct req_que *req = ha->req_q_map[0];
4358 	struct rsp_que *rsp = ha->rsp_q_map[0];
4359 
4360 	/* Setup ring parameters in initialization control block. */
4361 	ha->init_cb->request_q_outpointer = cpu_to_le16(0);
4362 	ha->init_cb->response_q_inpointer = cpu_to_le16(0);
4363 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
4364 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
4365 	put_unaligned_le64(req->dma, &ha->init_cb->request_q_address);
4366 	put_unaligned_le64(rsp->dma, &ha->init_cb->response_q_address);
4367 
4368 	wrt_reg_word(ISP_REQ_Q_IN(ha, reg), 0);
4369 	wrt_reg_word(ISP_REQ_Q_OUT(ha, reg), 0);
4370 	wrt_reg_word(ISP_RSP_Q_IN(ha, reg), 0);
4371 	wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), 0);
4372 	rd_reg_word(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
4373 }
4374 
4375 void
4376 qla24xx_config_rings(struct scsi_qla_host *vha)
4377 {
4378 	struct qla_hw_data *ha = vha->hw;
4379 	device_reg_t *reg = ISP_QUE_REG(ha, 0);
4380 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
4381 	struct qla_msix_entry *msix;
4382 	struct init_cb_24xx *icb;
4383 	uint16_t rid = 0;
4384 	struct req_que *req = ha->req_q_map[0];
4385 	struct rsp_que *rsp = ha->rsp_q_map[0];
4386 
4387 	/* Setup ring parameters in initialization control block. */
4388 	icb = (struct init_cb_24xx *)ha->init_cb;
4389 	icb->request_q_outpointer = cpu_to_le16(0);
4390 	icb->response_q_inpointer = cpu_to_le16(0);
4391 	icb->request_q_length = cpu_to_le16(req->length);
4392 	icb->response_q_length = cpu_to_le16(rsp->length);
4393 	put_unaligned_le64(req->dma, &icb->request_q_address);
4394 	put_unaligned_le64(rsp->dma, &icb->response_q_address);
4395 
4396 	/* Setup ATIO queue dma pointers for target mode */
4397 	icb->atio_q_inpointer = cpu_to_le16(0);
4398 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
4399 	put_unaligned_le64(ha->tgt.atio_dma, &icb->atio_q_address);
4400 
4401 	if (IS_SHADOW_REG_CAPABLE(ha))
4402 		icb->firmware_options_2 |= cpu_to_le32(BIT_30|BIT_29);
4403 
4404 	if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4405 	    IS_QLA28XX(ha)) {
4406 		icb->qos = cpu_to_le16(QLA_DEFAULT_QUE_QOS);
4407 		icb->rid = cpu_to_le16(rid);
4408 		if (ha->flags.msix_enabled) {
4409 			msix = &ha->msix_entries[1];
4410 			ql_dbg(ql_dbg_init, vha, 0x0019,
4411 			    "Registering vector 0x%x for base que.\n",
4412 			    msix->entry);
4413 			icb->msix = cpu_to_le16(msix->entry);
4414 		}
4415 		/* Use alternate PCI bus number */
4416 		if (MSB(rid))
4417 			icb->firmware_options_2 |= cpu_to_le32(BIT_19);
4418 		/* Use alternate PCI devfn */
4419 		if (LSB(rid))
4420 			icb->firmware_options_2 |= cpu_to_le32(BIT_18);
4421 
4422 		/* Use Disable MSIX Handshake mode for capable adapters */
4423 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
4424 		    (ha->flags.msix_enabled)) {
4425 			icb->firmware_options_2 &= cpu_to_le32(~BIT_22);
4426 			ha->flags.disable_msix_handshake = 1;
4427 			ql_dbg(ql_dbg_init, vha, 0x00fe,
4428 			    "MSIX Handshake Disable Mode turned on.\n");
4429 		} else {
4430 			icb->firmware_options_2 |= cpu_to_le32(BIT_22);
4431 		}
4432 		icb->firmware_options_2 |= cpu_to_le32(BIT_23);
4433 
4434 		wrt_reg_dword(&reg->isp25mq.req_q_in, 0);
4435 		wrt_reg_dword(&reg->isp25mq.req_q_out, 0);
4436 		wrt_reg_dword(&reg->isp25mq.rsp_q_in, 0);
4437 		wrt_reg_dword(&reg->isp25mq.rsp_q_out, 0);
4438 	} else {
4439 		wrt_reg_dword(&reg->isp24.req_q_in, 0);
4440 		wrt_reg_dword(&reg->isp24.req_q_out, 0);
4441 		wrt_reg_dword(&reg->isp24.rsp_q_in, 0);
4442 		wrt_reg_dword(&reg->isp24.rsp_q_out, 0);
4443 	}
4444 
4445 	qlt_24xx_config_rings(vha);
4446 
4447 	/* If the user has configured the speed, set it here */
4448 	if (ha->set_data_rate) {
4449 		ql_dbg(ql_dbg_init, vha, 0x00fd,
4450 		    "Speed set by user : %s Gbps \n",
4451 		    qla2x00_get_link_speed_str(ha, ha->set_data_rate));
4452 		icb->firmware_options_3 = cpu_to_le32(ha->set_data_rate << 13);
4453 	}
4454 
4455 	/* PCI posting */
4456 	rd_reg_word(&ioreg->hccr);
4457 }
4458 
4459 /**
4460  * qla2x00_init_rings() - Initializes firmware.
4461  * @vha: HA context
4462  *
4463  * Beginning of request ring has initialization control block already built
4464  * by nvram config routine.
4465  *
4466  * Returns 0 on success.
4467  */
4468 int
4469 qla2x00_init_rings(scsi_qla_host_t *vha)
4470 {
4471 	int	rval;
4472 	unsigned long flags = 0;
4473 	int cnt, que;
4474 	struct qla_hw_data *ha = vha->hw;
4475 	struct req_que *req;
4476 	struct rsp_que *rsp;
4477 	struct mid_init_cb_24xx *mid_init_cb =
4478 	    (struct mid_init_cb_24xx *) ha->init_cb;
4479 
4480 	spin_lock_irqsave(&ha->hardware_lock, flags);
4481 
4482 	/* Clear outstanding commands array. */
4483 	for (que = 0; que < ha->max_req_queues; que++) {
4484 		req = ha->req_q_map[que];
4485 		if (!req || !test_bit(que, ha->req_qid_map))
4486 			continue;
4487 		req->out_ptr = (uint16_t *)(req->ring + req->length);
4488 		*req->out_ptr = 0;
4489 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
4490 			req->outstanding_cmds[cnt] = NULL;
4491 
4492 		req->current_outstanding_cmd = 1;
4493 
4494 		/* Initialize firmware. */
4495 		req->ring_ptr  = req->ring;
4496 		req->ring_index    = 0;
4497 		req->cnt      = req->length;
4498 	}
4499 
4500 	for (que = 0; que < ha->max_rsp_queues; que++) {
4501 		rsp = ha->rsp_q_map[que];
4502 		if (!rsp || !test_bit(que, ha->rsp_qid_map))
4503 			continue;
4504 		rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length);
4505 		*rsp->in_ptr = 0;
4506 		/* Initialize response queue entries */
4507 		if (IS_QLAFX00(ha))
4508 			qlafx00_init_response_q_entries(rsp);
4509 		else
4510 			qla2x00_init_response_q_entries(rsp);
4511 	}
4512 
4513 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
4514 	ha->tgt.atio_ring_index = 0;
4515 	/* Initialize ATIO queue entries */
4516 	qlt_init_atio_q_entries(vha);
4517 
4518 	ha->isp_ops->config_rings(vha);
4519 
4520 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4521 
4522 	if (IS_QLAFX00(ha)) {
4523 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
4524 		goto next_check;
4525 	}
4526 
4527 	/* Update any ISP specific firmware options before initialization. */
4528 	ha->isp_ops->update_fw_options(vha);
4529 
4530 	ql_dbg(ql_dbg_init, vha, 0x00d1,
4531 	       "Issue init firmware FW opt 1-3= %08x %08x %08x.\n",
4532 	       le32_to_cpu(mid_init_cb->init_cb.firmware_options_1),
4533 	       le32_to_cpu(mid_init_cb->init_cb.firmware_options_2),
4534 	       le32_to_cpu(mid_init_cb->init_cb.firmware_options_3));
4535 
4536 	if (ha->flags.npiv_supported) {
4537 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
4538 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
4539 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
4540 	}
4541 
4542 	if (IS_FWI2_CAPABLE(ha)) {
4543 		mid_init_cb->options = cpu_to_le16(BIT_1);
4544 		mid_init_cb->init_cb.execution_throttle =
4545 		    cpu_to_le16(ha->cur_fw_xcb_count);
4546 		ha->flags.dport_enabled =
4547 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4548 			 BIT_7) != 0;
4549 		ql_dbg(ql_dbg_init, vha, 0x0191, "DPORT Support: %s.\n",
4550 		    (ha->flags.dport_enabled) ? "enabled" : "disabled");
4551 		/* FA-WWPN Status */
4552 		ha->flags.fawwpn_enabled =
4553 			(le32_to_cpu(mid_init_cb->init_cb.firmware_options_1) &
4554 			 BIT_6) != 0;
4555 		ql_dbg(ql_dbg_init, vha, 0x00bc, "FA-WWPN Support: %s.\n",
4556 		    (ha->flags.fawwpn_enabled) ? "enabled" : "disabled");
4557 		/* Init_cb will be reused for other command(s).  Save a backup copy of port_name */
4558 		memcpy(ha->port_name, ha->init_cb->port_name, WWN_SIZE);
4559 	}
4560 
4561 	/* ELS pass through payload is limit by frame size. */
4562 	if (ha->flags.edif_enabled)
4563 		mid_init_cb->init_cb.frame_payload_size = cpu_to_le16(ELS_MAX_PAYLOAD);
4564 
4565 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
4566 next_check:
4567 	if (rval) {
4568 		ql_log(ql_log_fatal, vha, 0x00d2,
4569 		    "Init Firmware **** FAILED ****.\n");
4570 	} else {
4571 		ql_dbg(ql_dbg_init, vha, 0x00d3,
4572 		    "Init Firmware -- success.\n");
4573 		QLA_FW_STARTED(ha);
4574 		vha->u_ql2xexchoffld = vha->u_ql2xiniexchg = 0;
4575 	}
4576 
4577 	return (rval);
4578 }
4579 
4580 /**
4581  * qla2x00_fw_ready() - Waits for firmware ready.
4582  * @vha: HA context
4583  *
4584  * Returns 0 on success.
4585  */
4586 static int
4587 qla2x00_fw_ready(scsi_qla_host_t *vha)
4588 {
4589 	int		rval;
4590 	unsigned long	wtime, mtime, cs84xx_time;
4591 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
4592 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
4593 	uint16_t	state[6];
4594 	struct qla_hw_data *ha = vha->hw;
4595 
4596 	if (IS_QLAFX00(vha->hw))
4597 		return qlafx00_fw_ready(vha);
4598 
4599 	/* Time to wait for loop down */
4600 	if (IS_P3P_TYPE(ha))
4601 		min_wait = 30;
4602 	else
4603 		min_wait = 20;
4604 
4605 	/*
4606 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
4607 	 * our own processing.
4608 	 */
4609 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
4610 		wait_time = min_wait;
4611 	}
4612 
4613 	/* Min wait time if loop down */
4614 	mtime = jiffies + (min_wait * HZ);
4615 
4616 	/* wait time before firmware ready */
4617 	wtime = jiffies + (wait_time * HZ);
4618 
4619 	/* Wait for ISP to finish LIP */
4620 	if (!vha->flags.init_done)
4621 		ql_log(ql_log_info, vha, 0x801e,
4622 		    "Waiting for LIP to complete.\n");
4623 
4624 	do {
4625 		memset(state, -1, sizeof(state));
4626 		rval = qla2x00_get_firmware_state(vha, state);
4627 		if (rval == QLA_SUCCESS) {
4628 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
4629 				vha->device_flags &= ~DFLG_NO_CABLE;
4630 			}
4631 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
4632 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
4633 				    "fw_state=%x 84xx=%x.\n", state[0],
4634 				    state[2]);
4635 				if ((state[2] & FSTATE_LOGGED_IN) &&
4636 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
4637 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
4638 					    "Sending verify iocb.\n");
4639 
4640 					cs84xx_time = jiffies;
4641 					rval = qla84xx_init_chip(vha);
4642 					if (rval != QLA_SUCCESS) {
4643 						ql_log(ql_log_warn,
4644 						    vha, 0x8007,
4645 						    "Init chip failed.\n");
4646 						break;
4647 					}
4648 
4649 					/* Add time taken to initialize. */
4650 					cs84xx_time = jiffies - cs84xx_time;
4651 					wtime += cs84xx_time;
4652 					mtime += cs84xx_time;
4653 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
4654 					    "Increasing wait time by %ld. "
4655 					    "New time %ld.\n", cs84xx_time,
4656 					    wtime);
4657 				}
4658 			} else if (state[0] == FSTATE_READY) {
4659 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
4660 				    "F/W Ready - OK.\n");
4661 
4662 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
4663 				    &ha->login_timeout, &ha->r_a_tov);
4664 
4665 				rval = QLA_SUCCESS;
4666 				break;
4667 			}
4668 
4669 			rval = QLA_FUNCTION_FAILED;
4670 
4671 			if (atomic_read(&vha->loop_down_timer) &&
4672 			    state[0] != FSTATE_READY) {
4673 				/* Loop down. Timeout on min_wait for states
4674 				 * other than Wait for Login.
4675 				 */
4676 				if (time_after_eq(jiffies, mtime)) {
4677 					ql_log(ql_log_info, vha, 0x8038,
4678 					    "Cable is unplugged...\n");
4679 
4680 					vha->device_flags |= DFLG_NO_CABLE;
4681 					break;
4682 				}
4683 			}
4684 		} else {
4685 			/* Mailbox cmd failed. Timeout on min_wait. */
4686 			if (time_after_eq(jiffies, mtime) ||
4687 				ha->flags.isp82xx_fw_hung)
4688 				break;
4689 		}
4690 
4691 		if (time_after_eq(jiffies, wtime))
4692 			break;
4693 
4694 		/* Delay for a while */
4695 		msleep(500);
4696 	} while (1);
4697 
4698 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
4699 	    "fw_state=%x (%x, %x, %x, %x %x) curr time=%lx.\n", state[0],
4700 	    state[1], state[2], state[3], state[4], state[5], jiffies);
4701 
4702 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
4703 		ql_log(ql_log_warn, vha, 0x803b,
4704 		    "Firmware ready **** FAILED ****.\n");
4705 	}
4706 
4707 	return (rval);
4708 }
4709 
4710 /*
4711 *  qla2x00_configure_hba
4712 *      Setup adapter context.
4713 *
4714 * Input:
4715 *      ha = adapter state pointer.
4716 *
4717 * Returns:
4718 *      0 = success
4719 *
4720 * Context:
4721 *      Kernel context.
4722 */
4723 static int
4724 qla2x00_configure_hba(scsi_qla_host_t *vha)
4725 {
4726 	int       rval;
4727 	uint16_t      loop_id;
4728 	uint16_t      topo;
4729 	uint16_t      sw_cap;
4730 	uint8_t       al_pa;
4731 	uint8_t       area;
4732 	uint8_t       domain;
4733 	char		connect_type[22];
4734 	struct qla_hw_data *ha = vha->hw;
4735 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
4736 	port_id_t id;
4737 	unsigned long flags;
4738 
4739 	/* Get host addresses. */
4740 	rval = qla2x00_get_adapter_id(vha,
4741 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
4742 	if (rval != QLA_SUCCESS) {
4743 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
4744 		    IS_CNA_CAPABLE(ha) ||
4745 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
4746 			ql_dbg(ql_dbg_disc, vha, 0x2008,
4747 			    "Loop is in a transition state.\n");
4748 		} else {
4749 			ql_log(ql_log_warn, vha, 0x2009,
4750 			    "Unable to get host loop ID.\n");
4751 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
4752 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
4753 				ql_log(ql_log_warn, vha, 0x1151,
4754 				    "Doing link init.\n");
4755 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
4756 					return rval;
4757 			}
4758 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4759 		}
4760 		return (rval);
4761 	}
4762 
4763 	if (topo == 4) {
4764 		ql_log(ql_log_info, vha, 0x200a,
4765 		    "Cannot get topology - retrying.\n");
4766 		return (QLA_FUNCTION_FAILED);
4767 	}
4768 
4769 	vha->loop_id = loop_id;
4770 
4771 	/* initialize */
4772 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
4773 	ha->operating_mode = LOOP;
4774 
4775 	switch (topo) {
4776 	case 0:
4777 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
4778 		ha->switch_cap = 0;
4779 		ha->current_topology = ISP_CFG_NL;
4780 		strcpy(connect_type, "(Loop)");
4781 		break;
4782 
4783 	case 1:
4784 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
4785 		ha->switch_cap = sw_cap;
4786 		ha->current_topology = ISP_CFG_FL;
4787 		strcpy(connect_type, "(FL_Port)");
4788 		break;
4789 
4790 	case 2:
4791 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
4792 		ha->switch_cap = 0;
4793 		ha->operating_mode = P2P;
4794 		ha->current_topology = ISP_CFG_N;
4795 		strcpy(connect_type, "(N_Port-to-N_Port)");
4796 		break;
4797 
4798 	case 3:
4799 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
4800 		ha->switch_cap = sw_cap;
4801 		ha->operating_mode = P2P;
4802 		ha->current_topology = ISP_CFG_F;
4803 		strcpy(connect_type, "(F_Port)");
4804 		break;
4805 
4806 	default:
4807 		ql_dbg(ql_dbg_disc, vha, 0x200f,
4808 		    "HBA in unknown topology %x, using NL.\n", topo);
4809 		ha->switch_cap = 0;
4810 		ha->current_topology = ISP_CFG_NL;
4811 		strcpy(connect_type, "(Loop)");
4812 		break;
4813 	}
4814 
4815 	/* Save Host port and loop ID. */
4816 	/* byte order - Big Endian */
4817 	id.b.domain = domain;
4818 	id.b.area = area;
4819 	id.b.al_pa = al_pa;
4820 	id.b.rsvd_1 = 0;
4821 	spin_lock_irqsave(&ha->hardware_lock, flags);
4822 	if (vha->hw->flags.edif_enabled) {
4823 		if (topo != 2)
4824 			qla_update_host_map(vha, id);
4825 	} else if (!(topo == 2 && ha->flags.n2n_bigger))
4826 		qla_update_host_map(vha, id);
4827 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4828 
4829 	if (!vha->flags.init_done)
4830 		ql_log(ql_log_info, vha, 0x2010,
4831 		    "Topology - %s, Host Loop address 0x%x.\n",
4832 		    connect_type, vha->loop_id);
4833 
4834 	return(rval);
4835 }
4836 
4837 inline void
4838 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
4839 		       const char *def)
4840 {
4841 	char *st, *en;
4842 	uint16_t index;
4843 	uint64_t zero[2] = { 0 };
4844 	struct qla_hw_data *ha = vha->hw;
4845 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
4846 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
4847 
4848 	if (len > sizeof(zero))
4849 		len = sizeof(zero);
4850 	if (memcmp(model, &zero, len) != 0) {
4851 		memcpy(ha->model_number, model, len);
4852 		st = en = ha->model_number;
4853 		en += len - 1;
4854 		while (en > st) {
4855 			if (*en != 0x20 && *en != 0x00)
4856 				break;
4857 			*en-- = '\0';
4858 		}
4859 
4860 		index = (ha->pdev->subsystem_device & 0xff);
4861 		if (use_tbl &&
4862 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4863 		    index < QLA_MODEL_NAMES)
4864 			strlcpy(ha->model_desc,
4865 			    qla2x00_model_name[index * 2 + 1],
4866 			    sizeof(ha->model_desc));
4867 	} else {
4868 		index = (ha->pdev->subsystem_device & 0xff);
4869 		if (use_tbl &&
4870 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
4871 		    index < QLA_MODEL_NAMES) {
4872 			strlcpy(ha->model_number,
4873 				qla2x00_model_name[index * 2],
4874 				sizeof(ha->model_number));
4875 			strlcpy(ha->model_desc,
4876 			    qla2x00_model_name[index * 2 + 1],
4877 			    sizeof(ha->model_desc));
4878 		} else {
4879 			strlcpy(ha->model_number, def,
4880 				sizeof(ha->model_number));
4881 		}
4882 	}
4883 	if (IS_FWI2_CAPABLE(ha))
4884 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
4885 		    sizeof(ha->model_desc));
4886 }
4887 
4888 /* On sparc systems, obtain port and node WWN from firmware
4889  * properties.
4890  */
4891 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
4892 {
4893 #ifdef CONFIG_SPARC
4894 	struct qla_hw_data *ha = vha->hw;
4895 	struct pci_dev *pdev = ha->pdev;
4896 	struct device_node *dp = pci_device_to_OF_node(pdev);
4897 	const u8 *val;
4898 	int len;
4899 
4900 	val = of_get_property(dp, "port-wwn", &len);
4901 	if (val && len >= WWN_SIZE)
4902 		memcpy(nv->port_name, val, WWN_SIZE);
4903 
4904 	val = of_get_property(dp, "node-wwn", &len);
4905 	if (val && len >= WWN_SIZE)
4906 		memcpy(nv->node_name, val, WWN_SIZE);
4907 #endif
4908 }
4909 
4910 /*
4911 * NVRAM configuration for ISP 2xxx
4912 *
4913 * Input:
4914 *      ha                = adapter block pointer.
4915 *
4916 * Output:
4917 *      initialization control block in response_ring
4918 *      host adapters parameters in host adapter block
4919 *
4920 * Returns:
4921 *      0 = success.
4922 */
4923 int
4924 qla2x00_nvram_config(scsi_qla_host_t *vha)
4925 {
4926 	int             rval;
4927 	uint8_t         chksum = 0;
4928 	uint16_t        cnt;
4929 	uint8_t         *dptr1, *dptr2;
4930 	struct qla_hw_data *ha = vha->hw;
4931 	init_cb_t       *icb = ha->init_cb;
4932 	nvram_t         *nv = ha->nvram;
4933 	uint8_t         *ptr = ha->nvram;
4934 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4935 
4936 	rval = QLA_SUCCESS;
4937 
4938 	/* Determine NVRAM starting address. */
4939 	ha->nvram_size = sizeof(*nv);
4940 	ha->nvram_base = 0;
4941 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
4942 		if ((rd_reg_word(&reg->ctrl_status) >> 14) == 1)
4943 			ha->nvram_base = 0x80;
4944 
4945 	/* Get NVRAM data and calculate checksum. */
4946 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
4947 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
4948 		chksum += *ptr++;
4949 
4950 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
4951 	    "Contents of NVRAM.\n");
4952 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
4953 	    nv, ha->nvram_size);
4954 
4955 	/* Bad NVRAM data, set defaults parameters. */
4956 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
4957 	    nv->nvram_version < 1) {
4958 		/* Reset NVRAM data. */
4959 		ql_log(ql_log_warn, vha, 0x0064,
4960 		    "Inconsistent NVRAM detected: checksum=%#x id=%.4s version=%#x.\n",
4961 		    chksum, nv->id, nv->nvram_version);
4962 		ql_log(ql_log_warn, vha, 0x0065,
4963 		    "Falling back to "
4964 		    "functioning (yet invalid -- WWPN) defaults.\n");
4965 
4966 		/*
4967 		 * Set default initialization control block.
4968 		 */
4969 		memset(nv, 0, ha->nvram_size);
4970 		nv->parameter_block_version = ICB_VERSION;
4971 
4972 		if (IS_QLA23XX(ha)) {
4973 			nv->firmware_options[0] = BIT_2 | BIT_1;
4974 			nv->firmware_options[1] = BIT_7 | BIT_5;
4975 			nv->add_firmware_options[0] = BIT_5;
4976 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4977 			nv->frame_payload_size = cpu_to_le16(2048);
4978 			nv->special_options[1] = BIT_7;
4979 		} else if (IS_QLA2200(ha)) {
4980 			nv->firmware_options[0] = BIT_2 | BIT_1;
4981 			nv->firmware_options[1] = BIT_7 | BIT_5;
4982 			nv->add_firmware_options[0] = BIT_5;
4983 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
4984 			nv->frame_payload_size = cpu_to_le16(1024);
4985 		} else if (IS_QLA2100(ha)) {
4986 			nv->firmware_options[0] = BIT_3 | BIT_1;
4987 			nv->firmware_options[1] = BIT_5;
4988 			nv->frame_payload_size = cpu_to_le16(1024);
4989 		}
4990 
4991 		nv->max_iocb_allocation = cpu_to_le16(256);
4992 		nv->execution_throttle = cpu_to_le16(16);
4993 		nv->retry_count = 8;
4994 		nv->retry_delay = 1;
4995 
4996 		nv->port_name[0] = 33;
4997 		nv->port_name[3] = 224;
4998 		nv->port_name[4] = 139;
4999 
5000 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
5001 
5002 		nv->login_timeout = 4;
5003 
5004 		/*
5005 		 * Set default host adapter parameters
5006 		 */
5007 		nv->host_p[1] = BIT_2;
5008 		nv->reset_delay = 5;
5009 		nv->port_down_retry_count = 8;
5010 		nv->max_luns_per_target = cpu_to_le16(8);
5011 		nv->link_down_timeout = 60;
5012 
5013 		rval = 1;
5014 	}
5015 
5016 	/* Reset Initialization control block */
5017 	memset(icb, 0, ha->init_cb_size);
5018 
5019 	/*
5020 	 * Setup driver NVRAM options.
5021 	 */
5022 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
5023 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
5024 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
5025 	nv->firmware_options[1] &= ~BIT_4;
5026 
5027 	if (IS_QLA23XX(ha)) {
5028 		nv->firmware_options[0] |= BIT_2;
5029 		nv->firmware_options[0] &= ~BIT_3;
5030 		nv->special_options[0] &= ~BIT_6;
5031 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
5032 
5033 		if (IS_QLA2300(ha)) {
5034 			if (ha->fb_rev == FPM_2310) {
5035 				strcpy(ha->model_number, "QLA2310");
5036 			} else {
5037 				strcpy(ha->model_number, "QLA2300");
5038 			}
5039 		} else {
5040 			qla2x00_set_model_info(vha, nv->model_number,
5041 			    sizeof(nv->model_number), "QLA23xx");
5042 		}
5043 	} else if (IS_QLA2200(ha)) {
5044 		nv->firmware_options[0] |= BIT_2;
5045 		/*
5046 		 * 'Point-to-point preferred, else loop' is not a safe
5047 		 * connection mode setting.
5048 		 */
5049 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
5050 		    (BIT_5 | BIT_4)) {
5051 			/* Force 'loop preferred, else point-to-point'. */
5052 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
5053 			nv->add_firmware_options[0] |= BIT_5;
5054 		}
5055 		strcpy(ha->model_number, "QLA22xx");
5056 	} else /*if (IS_QLA2100(ha))*/ {
5057 		strcpy(ha->model_number, "QLA2100");
5058 	}
5059 
5060 	/*
5061 	 * Copy over NVRAM RISC parameter block to initialization control block.
5062 	 */
5063 	dptr1 = (uint8_t *)icb;
5064 	dptr2 = (uint8_t *)&nv->parameter_block_version;
5065 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
5066 	while (cnt--)
5067 		*dptr1++ = *dptr2++;
5068 
5069 	/* Copy 2nd half. */
5070 	dptr1 = (uint8_t *)icb->add_firmware_options;
5071 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
5072 	while (cnt--)
5073 		*dptr1++ = *dptr2++;
5074 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
5075 	/* Use alternate WWN? */
5076 	if (nv->host_p[1] & BIT_7) {
5077 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
5078 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
5079 	}
5080 
5081 	/* Prepare nodename */
5082 	if ((icb->firmware_options[1] & BIT_6) == 0) {
5083 		/*
5084 		 * Firmware will apply the following mask if the nodename was
5085 		 * not provided.
5086 		 */
5087 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
5088 		icb->node_name[0] &= 0xF0;
5089 	}
5090 
5091 	/*
5092 	 * Set host adapter parameters.
5093 	 */
5094 
5095 	/*
5096 	 * BIT_7 in the host-parameters section allows for modification to
5097 	 * internal driver logging.
5098 	 */
5099 	if (nv->host_p[0] & BIT_7)
5100 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
5101 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
5102 	/* Always load RISC code on non ISP2[12]00 chips. */
5103 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
5104 		ha->flags.disable_risc_code_load = 0;
5105 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
5106 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
5107 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
5108 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
5109 	ha->flags.disable_serdes = 0;
5110 
5111 	ha->operating_mode =
5112 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
5113 
5114 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
5115 	    sizeof(ha->fw_seriallink_options));
5116 
5117 	/* save HBA serial number */
5118 	ha->serial0 = icb->port_name[5];
5119 	ha->serial1 = icb->port_name[6];
5120 	ha->serial2 = icb->port_name[7];
5121 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
5122 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
5123 
5124 	icb->execution_throttle = cpu_to_le16(0xFFFF);
5125 
5126 	ha->retry_count = nv->retry_count;
5127 
5128 	/* Set minimum login_timeout to 4 seconds. */
5129 	if (nv->login_timeout != ql2xlogintimeout)
5130 		nv->login_timeout = ql2xlogintimeout;
5131 	if (nv->login_timeout < 4)
5132 		nv->login_timeout = 4;
5133 	ha->login_timeout = nv->login_timeout;
5134 
5135 	/* Set minimum RATOV to 100 tenths of a second. */
5136 	ha->r_a_tov = 100;
5137 
5138 	ha->loop_reset_delay = nv->reset_delay;
5139 
5140 	/* Link Down Timeout = 0:
5141 	 *
5142 	 * 	When Port Down timer expires we will start returning
5143 	 *	I/O's to OS with "DID_NO_CONNECT".
5144 	 *
5145 	 * Link Down Timeout != 0:
5146 	 *
5147 	 *	 The driver waits for the link to come up after link down
5148 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
5149 	 */
5150 	if (nv->link_down_timeout == 0) {
5151 		ha->loop_down_abort_time =
5152 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
5153 	} else {
5154 		ha->link_down_timeout =	 nv->link_down_timeout;
5155 		ha->loop_down_abort_time =
5156 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
5157 	}
5158 
5159 	/*
5160 	 * Need enough time to try and get the port back.
5161 	 */
5162 	ha->port_down_retry_count = nv->port_down_retry_count;
5163 	if (qlport_down_retry)
5164 		ha->port_down_retry_count = qlport_down_retry;
5165 	/* Set login_retry_count */
5166 	ha->login_retry_count  = nv->retry_count;
5167 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
5168 	    ha->port_down_retry_count > 3)
5169 		ha->login_retry_count = ha->port_down_retry_count;
5170 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
5171 		ha->login_retry_count = ha->port_down_retry_count;
5172 	if (ql2xloginretrycount)
5173 		ha->login_retry_count = ql2xloginretrycount;
5174 
5175 	icb->lun_enables = cpu_to_le16(0);
5176 	icb->command_resource_count = 0;
5177 	icb->immediate_notify_resource_count = 0;
5178 	icb->timeout = cpu_to_le16(0);
5179 
5180 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
5181 		/* Enable RIO */
5182 		icb->firmware_options[0] &= ~BIT_3;
5183 		icb->add_firmware_options[0] &=
5184 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
5185 		icb->add_firmware_options[0] |= BIT_2;
5186 		icb->response_accumulation_timer = 3;
5187 		icb->interrupt_delay_timer = 5;
5188 
5189 		vha->flags.process_response_queue = 1;
5190 	} else {
5191 		/* Enable ZIO. */
5192 		if (!vha->flags.init_done) {
5193 			ha->zio_mode = icb->add_firmware_options[0] &
5194 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
5195 			ha->zio_timer = icb->interrupt_delay_timer ?
5196 			    icb->interrupt_delay_timer : 2;
5197 		}
5198 		icb->add_firmware_options[0] &=
5199 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
5200 		vha->flags.process_response_queue = 0;
5201 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
5202 			ha->zio_mode = QLA_ZIO_MODE_6;
5203 
5204 			ql_log(ql_log_info, vha, 0x0068,
5205 			    "ZIO mode %d enabled; timer delay (%d us).\n",
5206 			    ha->zio_mode, ha->zio_timer * 100);
5207 
5208 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
5209 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
5210 			vha->flags.process_response_queue = 1;
5211 		}
5212 	}
5213 
5214 	if (rval) {
5215 		ql_log(ql_log_warn, vha, 0x0069,
5216 		    "NVRAM configuration failed.\n");
5217 	}
5218 	return (rval);
5219 }
5220 
5221 void qla2x00_set_fcport_state(fc_port_t *fcport, int state)
5222 {
5223 	int old_state;
5224 
5225 	old_state = atomic_read(&fcport->state);
5226 	atomic_set(&fcport->state, state);
5227 
5228 	/* Don't print state transitions during initial allocation of fcport */
5229 	if (old_state && old_state != state) {
5230 		ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
5231 		       "FCPort %8phC state transitioned from %s to %s - portid=%02x%02x%02x.\n",
5232 		       fcport->port_name, port_state_str[old_state],
5233 		       port_state_str[state], fcport->d_id.b.domain,
5234 		       fcport->d_id.b.area, fcport->d_id.b.al_pa);
5235 	}
5236 }
5237 
5238 /**
5239  * qla2x00_alloc_fcport() - Allocate a generic fcport.
5240  * @vha: HA context
5241  * @flags: allocation flags
5242  *
5243  * Returns a pointer to the allocated fcport, or NULL, if none available.
5244  */
5245 fc_port_t *
5246 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
5247 {
5248 	fc_port_t *fcport;
5249 
5250 	fcport = kzalloc(sizeof(fc_port_t), flags);
5251 	if (!fcport)
5252 		return NULL;
5253 
5254 	fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev,
5255 		sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma,
5256 		flags);
5257 	if (!fcport->ct_desc.ct_sns) {
5258 		ql_log(ql_log_warn, vha, 0xd049,
5259 		    "Failed to allocate ct_sns request.\n");
5260 		kfree(fcport);
5261 		return NULL;
5262 	}
5263 
5264 	/* Setup fcport template structure. */
5265 	fcport->vha = vha;
5266 	fcport->port_type = FCT_UNKNOWN;
5267 	fcport->loop_id = FC_NO_LOOP_ID;
5268 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
5269 	fcport->supported_classes = FC_COS_UNSPECIFIED;
5270 	fcport->fp_speed = PORT_SPEED_UNKNOWN;
5271 
5272 	fcport->disc_state = DSC_DELETED;
5273 	fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
5274 	fcport->deleted = QLA_SESS_DELETED;
5275 	fcport->login_retry = vha->hw->login_retry_count;
5276 	fcport->chip_reset = vha->hw->base_qpair->chip_reset;
5277 	fcport->logout_on_delete = 1;
5278 	fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
5279 	fcport->tgt_short_link_down_cnt = 0;
5280 	fcport->dev_loss_tmo = 0;
5281 
5282 	if (!fcport->ct_desc.ct_sns) {
5283 		ql_log(ql_log_warn, vha, 0xd049,
5284 		    "Failed to allocate ct_sns request.\n");
5285 		kfree(fcport);
5286 		return NULL;
5287 	}
5288 
5289 	INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
5290 	INIT_WORK(&fcport->free_work, qlt_free_session_done);
5291 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
5292 	INIT_LIST_HEAD(&fcport->gnl_entry);
5293 	INIT_LIST_HEAD(&fcport->list);
5294 
5295 	INIT_LIST_HEAD(&fcport->sess_cmd_list);
5296 	spin_lock_init(&fcport->sess_cmd_lock);
5297 
5298 	spin_lock_init(&fcport->edif.sa_list_lock);
5299 	INIT_LIST_HEAD(&fcport->edif.tx_sa_list);
5300 	INIT_LIST_HEAD(&fcport->edif.rx_sa_list);
5301 
5302 	spin_lock_init(&fcport->edif.indx_list_lock);
5303 	INIT_LIST_HEAD(&fcport->edif.edif_indx_list);
5304 
5305 	return fcport;
5306 }
5307 
5308 void
5309 qla2x00_free_fcport(fc_port_t *fcport)
5310 {
5311 	if (fcport->ct_desc.ct_sns) {
5312 		dma_free_coherent(&fcport->vha->hw->pdev->dev,
5313 			sizeof(struct ct_sns_pkt), fcport->ct_desc.ct_sns,
5314 			fcport->ct_desc.ct_sns_dma);
5315 
5316 		fcport->ct_desc.ct_sns = NULL;
5317 	}
5318 
5319 	qla_edif_flush_sa_ctl_lists(fcport);
5320 	list_del(&fcport->list);
5321 	qla2x00_clear_loop_id(fcport);
5322 
5323 	qla_edif_list_del(fcport);
5324 
5325 	kfree(fcport);
5326 }
5327 
5328 static void qla_get_login_template(scsi_qla_host_t *vha)
5329 {
5330 	struct qla_hw_data *ha = vha->hw;
5331 	int rval;
5332 	u32 *bp, sz;
5333 	__be32 *q;
5334 
5335 	memset(ha->init_cb, 0, ha->init_cb_size);
5336 	sz = min_t(int, sizeof(struct fc_els_flogi), ha->init_cb_size);
5337 	rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma,
5338 					    ha->init_cb, sz);
5339 	if (rval != QLA_SUCCESS) {
5340 		ql_dbg(ql_dbg_init, vha, 0x00d1,
5341 		       "PLOGI ELS param read fail.\n");
5342 		return;
5343 	}
5344 	q = (__be32 *)&ha->plogi_els_payld.fl_csp;
5345 
5346 	bp = (uint32_t *)ha->init_cb;
5347 	cpu_to_be32_array(q, bp, sz / 4);
5348 	ha->flags.plogi_template_valid = 1;
5349 }
5350 
5351 /*
5352  * qla2x00_configure_loop
5353  *      Updates Fibre Channel Device Database with what is actually on loop.
5354  *
5355  * Input:
5356  *      ha                = adapter block pointer.
5357  *
5358  * Returns:
5359  *      0 = success.
5360  *      1 = error.
5361  *      2 = database was full and device was not configured.
5362  */
5363 static int
5364 qla2x00_configure_loop(scsi_qla_host_t *vha)
5365 {
5366 	int  rval;
5367 	unsigned long flags, save_flags;
5368 	struct qla_hw_data *ha = vha->hw;
5369 
5370 	rval = QLA_SUCCESS;
5371 
5372 	/* Get Initiator ID */
5373 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
5374 		rval = qla2x00_configure_hba(vha);
5375 		if (rval != QLA_SUCCESS) {
5376 			ql_dbg(ql_dbg_disc, vha, 0x2013,
5377 			    "Unable to configure HBA.\n");
5378 			return (rval);
5379 		}
5380 	}
5381 
5382 	save_flags = flags = vha->dpc_flags;
5383 	ql_dbg(ql_dbg_disc, vha, 0x2014,
5384 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
5385 
5386 	/*
5387 	 * If we have both an RSCN and PORT UPDATE pending then handle them
5388 	 * both at the same time.
5389 	 */
5390 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5391 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
5392 
5393 	qla2x00_get_data_rate(vha);
5394 	qla_get_login_template(vha);
5395 
5396 	/* Determine what we need to do */
5397 	if ((ha->current_topology == ISP_CFG_FL ||
5398 	    ha->current_topology == ISP_CFG_F) &&
5399 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
5400 
5401 		set_bit(RSCN_UPDATE, &flags);
5402 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
5403 
5404 	} else if (ha->current_topology == ISP_CFG_NL ||
5405 		   ha->current_topology == ISP_CFG_N) {
5406 		clear_bit(RSCN_UPDATE, &flags);
5407 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5408 	} else if (!vha->flags.online ||
5409 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
5410 		set_bit(RSCN_UPDATE, &flags);
5411 		set_bit(LOCAL_LOOP_UPDATE, &flags);
5412 	}
5413 
5414 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
5415 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5416 			ql_dbg(ql_dbg_disc, vha, 0x2015,
5417 			    "Loop resync needed, failing.\n");
5418 			rval = QLA_FUNCTION_FAILED;
5419 		} else
5420 			rval = qla2x00_configure_local_loop(vha);
5421 	}
5422 
5423 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
5424 		if (LOOP_TRANSITION(vha)) {
5425 			ql_dbg(ql_dbg_disc, vha, 0x2099,
5426 			    "Needs RSCN update and loop transition.\n");
5427 			rval = QLA_FUNCTION_FAILED;
5428 		}
5429 		else
5430 			rval = qla2x00_configure_fabric(vha);
5431 	}
5432 
5433 	if (rval == QLA_SUCCESS) {
5434 		if (atomic_read(&vha->loop_down_timer) ||
5435 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5436 			rval = QLA_FUNCTION_FAILED;
5437 		} else {
5438 			atomic_set(&vha->loop_state, LOOP_READY);
5439 			ql_dbg(ql_dbg_disc, vha, 0x2069,
5440 			    "LOOP READY.\n");
5441 			ha->flags.fw_init_done = 1;
5442 
5443 			/*
5444 			 * use link up to wake up app to get ready for
5445 			 * authentication.
5446 			 */
5447 			if (ha->flags.edif_enabled && DBELL_INACTIVE(vha))
5448 				qla2x00_post_aen_work(vha, FCH_EVT_LINKUP,
5449 						      ha->link_data_rate);
5450 
5451 			/*
5452 			 * Process any ATIO queue entries that came in
5453 			 * while we weren't online.
5454 			 */
5455 			if (qla_tgt_mode_enabled(vha) ||
5456 			    qla_dual_mode_enabled(vha)) {
5457 				spin_lock_irqsave(&ha->tgt.atio_lock, flags);
5458 				qlt_24xx_process_atio_queue(vha, 0);
5459 				spin_unlock_irqrestore(&ha->tgt.atio_lock,
5460 				    flags);
5461 			}
5462 		}
5463 	}
5464 
5465 	if (rval) {
5466 		ql_dbg(ql_dbg_disc, vha, 0x206a,
5467 		    "%s *** FAILED ***.\n", __func__);
5468 	} else {
5469 		ql_dbg(ql_dbg_disc, vha, 0x206b,
5470 		    "%s: exiting normally. local port wwpn %8phN id %06x)\n",
5471 		    __func__, vha->port_name, vha->d_id.b24);
5472 	}
5473 
5474 	/* Restore state if a resync event occurred during processing */
5475 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
5476 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
5477 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5478 		if (test_bit(RSCN_UPDATE, &save_flags)) {
5479 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
5480 		}
5481 	}
5482 
5483 	return (rval);
5484 }
5485 
5486 static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha)
5487 {
5488 	unsigned long flags;
5489 	fc_port_t *fcport;
5490 
5491 	ql_dbg(ql_dbg_disc, vha, 0x206a, "%s %d.\n", __func__, __LINE__);
5492 
5493 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags))
5494 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
5495 
5496 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5497 		if (fcport->n2n_flag) {
5498 			qla24xx_fcport_handle_login(vha, fcport);
5499 			return QLA_SUCCESS;
5500 		}
5501 	}
5502 
5503 	spin_lock_irqsave(&vha->work_lock, flags);
5504 	vha->scan.scan_retry++;
5505 	spin_unlock_irqrestore(&vha->work_lock, flags);
5506 
5507 	if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5508 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5509 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5510 	}
5511 	return QLA_FUNCTION_FAILED;
5512 }
5513 
5514 static void
5515 qla_reinitialize_link(scsi_qla_host_t *vha)
5516 {
5517 	int rval;
5518 
5519 	atomic_set(&vha->loop_state, LOOP_DOWN);
5520 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
5521 	rval = qla2x00_full_login_lip(vha);
5522 	if (rval == QLA_SUCCESS) {
5523 		ql_dbg(ql_dbg_disc, vha, 0xd050, "Link reinitialized\n");
5524 	} else {
5525 		ql_dbg(ql_dbg_disc, vha, 0xd051,
5526 			"Link reinitialization failed (%d)\n", rval);
5527 	}
5528 }
5529 
5530 /*
5531  * qla2x00_configure_local_loop
5532  *	Updates Fibre Channel Device Database with local loop devices.
5533  *
5534  * Input:
5535  *	ha = adapter block pointer.
5536  *
5537  * Returns:
5538  *	0 = success.
5539  */
5540 static int
5541 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
5542 {
5543 	int		rval, rval2;
5544 	int		found;
5545 	fc_port_t	*fcport, *new_fcport;
5546 	uint16_t	index;
5547 	uint16_t	entries;
5548 	struct gid_list_info *gid;
5549 	uint16_t	loop_id;
5550 	uint8_t		domain, area, al_pa;
5551 	struct qla_hw_data *ha = vha->hw;
5552 	unsigned long flags;
5553 
5554 	/* Inititae N2N login. */
5555 	if (N2N_TOPO(ha))
5556 		return qla2x00_configure_n2n_loop(vha);
5557 
5558 	new_fcport = NULL;
5559 	entries = MAX_FIBRE_DEVICES_LOOP;
5560 
5561 	/* Get list of logged in devices. */
5562 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
5563 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
5564 	    &entries);
5565 	if (rval != QLA_SUCCESS)
5566 		goto err;
5567 
5568 	ql_dbg(ql_dbg_disc, vha, 0x2011,
5569 	    "Entries in ID list (%d).\n", entries);
5570 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
5571 	    ha->gid_list, entries * sizeof(*ha->gid_list));
5572 
5573 	if (entries == 0) {
5574 		spin_lock_irqsave(&vha->work_lock, flags);
5575 		vha->scan.scan_retry++;
5576 		spin_unlock_irqrestore(&vha->work_lock, flags);
5577 
5578 		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
5579 			u8 loop_map_entries = 0;
5580 			int rc;
5581 
5582 			rc = qla2x00_get_fcal_position_map(vha, NULL,
5583 						&loop_map_entries);
5584 			if (rc == QLA_SUCCESS && loop_map_entries > 1) {
5585 				/*
5586 				 * There are devices that are still not logged
5587 				 * in. Reinitialize to give them a chance.
5588 				 */
5589 				qla_reinitialize_link(vha);
5590 				return QLA_FUNCTION_FAILED;
5591 			}
5592 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5593 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5594 		}
5595 	} else {
5596 		vha->scan.scan_retry = 0;
5597 	}
5598 
5599 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5600 		fcport->scan_state = QLA_FCPORT_SCAN;
5601 	}
5602 
5603 	/* Allocate temporary fcport for any new fcports discovered. */
5604 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5605 	if (new_fcport == NULL) {
5606 		ql_log(ql_log_warn, vha, 0x2012,
5607 		    "Memory allocation failed for fcport.\n");
5608 		rval = QLA_MEMORY_ALLOC_FAILED;
5609 		goto err;
5610 	}
5611 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5612 
5613 	/* Add devices to port list. */
5614 	gid = ha->gid_list;
5615 	for (index = 0; index < entries; index++) {
5616 		domain = gid->domain;
5617 		area = gid->area;
5618 		al_pa = gid->al_pa;
5619 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
5620 			loop_id = gid->loop_id_2100;
5621 		else
5622 			loop_id = le16_to_cpu(gid->loop_id);
5623 		gid = (void *)gid + ha->gid_list_info_size;
5624 
5625 		/* Bypass reserved domain fields. */
5626 		if ((domain & 0xf0) == 0xf0)
5627 			continue;
5628 
5629 		/* Bypass if not same domain and area of adapter. */
5630 		if (area && domain && ((area != vha->d_id.b.area) ||
5631 		    (domain != vha->d_id.b.domain)) &&
5632 		    (ha->current_topology == ISP_CFG_NL))
5633 			continue;
5634 
5635 
5636 		/* Bypass invalid local loop ID. */
5637 		if (loop_id > LAST_LOCAL_LOOP_ID)
5638 			continue;
5639 
5640 		memset(new_fcport->port_name, 0, WWN_SIZE);
5641 
5642 		/* Fill in member data. */
5643 		new_fcport->d_id.b.domain = domain;
5644 		new_fcport->d_id.b.area = area;
5645 		new_fcport->d_id.b.al_pa = al_pa;
5646 		new_fcport->loop_id = loop_id;
5647 		new_fcport->scan_state = QLA_FCPORT_FOUND;
5648 
5649 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
5650 		if (rval2 != QLA_SUCCESS) {
5651 			ql_dbg(ql_dbg_disc, vha, 0x2097,
5652 			    "Failed to retrieve fcport information "
5653 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
5654 			    rval2, new_fcport->loop_id);
5655 			/* Skip retry if N2N */
5656 			if (ha->current_topology != ISP_CFG_N) {
5657 				ql_dbg(ql_dbg_disc, vha, 0x2105,
5658 				    "Scheduling resync.\n");
5659 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5660 				continue;
5661 			}
5662 		}
5663 
5664 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5665 		/* Check for matching device in port list. */
5666 		found = 0;
5667 		fcport = NULL;
5668 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
5669 			if (memcmp(new_fcport->port_name, fcport->port_name,
5670 			    WWN_SIZE))
5671 				continue;
5672 
5673 			fcport->flags &= ~FCF_FABRIC_DEVICE;
5674 			fcport->loop_id = new_fcport->loop_id;
5675 			fcport->port_type = new_fcport->port_type;
5676 			fcport->d_id.b24 = new_fcport->d_id.b24;
5677 			memcpy(fcport->node_name, new_fcport->node_name,
5678 			    WWN_SIZE);
5679 			fcport->scan_state = QLA_FCPORT_FOUND;
5680 			if (fcport->login_retry == 0) {
5681 				fcport->login_retry = vha->hw->login_retry_count;
5682 				ql_dbg(ql_dbg_disc, vha, 0x2135,
5683 				    "Port login retry %8phN, lid 0x%04x retry cnt=%d.\n",
5684 				    fcport->port_name, fcport->loop_id,
5685 				    fcport->login_retry);
5686 			}
5687 			found++;
5688 			break;
5689 		}
5690 
5691 		if (!found) {
5692 			/* New device, add to fcports list. */
5693 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
5694 
5695 			/* Allocate a new replacement fcport. */
5696 			fcport = new_fcport;
5697 
5698 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5699 
5700 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
5701 
5702 			if (new_fcport == NULL) {
5703 				ql_log(ql_log_warn, vha, 0xd031,
5704 				    "Failed to allocate memory for fcport.\n");
5705 				rval = QLA_MEMORY_ALLOC_FAILED;
5706 				goto err;
5707 			}
5708 			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
5709 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
5710 		}
5711 
5712 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
5713 
5714 		/* Base iIDMA settings on HBA port speed. */
5715 		fcport->fp_speed = ha->link_data_rate;
5716 	}
5717 
5718 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
5719 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
5720 			break;
5721 
5722 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
5723 			if ((qla_dual_mode_enabled(vha) ||
5724 			    qla_ini_mode_enabled(vha)) &&
5725 			    atomic_read(&fcport->state) == FCS_ONLINE) {
5726 				qla2x00_mark_device_lost(vha, fcport,
5727 					ql2xplogiabsentdevice);
5728 				if (fcport->loop_id != FC_NO_LOOP_ID &&
5729 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
5730 				    fcport->port_type != FCT_INITIATOR &&
5731 				    fcport->port_type != FCT_BROADCAST) {
5732 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
5733 					    "%s %d %8phC post del sess\n",
5734 					    __func__, __LINE__,
5735 					    fcport->port_name);
5736 
5737 					qlt_schedule_sess_for_deletion(fcport);
5738 					continue;
5739 				}
5740 			}
5741 		}
5742 
5743 		if (fcport->scan_state == QLA_FCPORT_FOUND)
5744 			qla24xx_fcport_handle_login(vha, fcport);
5745 	}
5746 
5747 	qla2x00_free_fcport(new_fcport);
5748 
5749 	return rval;
5750 
5751 err:
5752 	ql_dbg(ql_dbg_disc, vha, 0x2098,
5753 	       "Configure local loop error exit: rval=%x.\n", rval);
5754 	return rval;
5755 }
5756 
5757 static void
5758 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5759 {
5760 	int rval;
5761 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5762 	struct qla_hw_data *ha = vha->hw;
5763 
5764 	if (!IS_IIDMA_CAPABLE(ha))
5765 		return;
5766 
5767 	if (atomic_read(&fcport->state) != FCS_ONLINE)
5768 		return;
5769 
5770 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
5771 	    fcport->fp_speed > ha->link_data_rate ||
5772 	    !ha->flags.gpsc_supported)
5773 		return;
5774 
5775 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
5776 	    mb);
5777 	if (rval != QLA_SUCCESS) {
5778 		ql_dbg(ql_dbg_disc, vha, 0x2004,
5779 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
5780 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
5781 	} else {
5782 		ql_dbg(ql_dbg_disc, vha, 0x2005,
5783 		    "iIDMA adjusted to %s GB/s (%X) on %8phN.\n",
5784 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
5785 		    fcport->fp_speed, fcport->port_name);
5786 	}
5787 }
5788 
5789 void qla_do_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5790 {
5791 	qla2x00_iidma_fcport(vha, fcport);
5792 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5793 }
5794 
5795 int qla_post_iidma_work(struct scsi_qla_host *vha, fc_port_t *fcport)
5796 {
5797 	struct qla_work_evt *e;
5798 
5799 	e = qla2x00_alloc_work(vha, QLA_EVT_IIDMA);
5800 	if (!e)
5801 		return QLA_FUNCTION_FAILED;
5802 
5803 	e->u.fcport.fcport = fcport;
5804 	return qla2x00_post_work(vha, e);
5805 }
5806 
5807 /* qla2x00_reg_remote_port is reserved for Initiator Mode only.*/
5808 static void
5809 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
5810 {
5811 	struct fc_rport_identifiers rport_ids;
5812 	struct fc_rport *rport;
5813 	unsigned long flags;
5814 
5815 	if (atomic_read(&fcport->state) == FCS_ONLINE)
5816 		return;
5817 
5818 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
5819 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
5820 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
5821 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
5822 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
5823 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
5824 	if (!rport) {
5825 		ql_log(ql_log_warn, vha, 0x2006,
5826 		    "Unable to allocate fc remote port.\n");
5827 		return;
5828 	}
5829 
5830 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
5831 	*((fc_port_t **)rport->dd_data) = fcport;
5832 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
5833 	fcport->dev_loss_tmo = rport->dev_loss_tmo;
5834 
5835 	rport->supported_classes = fcport->supported_classes;
5836 
5837 	rport_ids.roles = FC_PORT_ROLE_UNKNOWN;
5838 	if (fcport->port_type == FCT_INITIATOR)
5839 		rport_ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
5840 	if (fcport->port_type == FCT_TARGET)
5841 		rport_ids.roles |= FC_PORT_ROLE_FCP_TARGET;
5842 	if (fcport->port_type & FCT_NVME_INITIATOR)
5843 		rport_ids.roles |= FC_PORT_ROLE_NVME_INITIATOR;
5844 	if (fcport->port_type & FCT_NVME_TARGET)
5845 		rport_ids.roles |= FC_PORT_ROLE_NVME_TARGET;
5846 	if (fcport->port_type & FCT_NVME_DISCOVERY)
5847 		rport_ids.roles |= FC_PORT_ROLE_NVME_DISCOVERY;
5848 
5849 	fc_remote_port_rolechg(rport, rport_ids.roles);
5850 
5851 	ql_dbg(ql_dbg_disc, vha, 0x20ee,
5852 	    "%s: %8phN. rport %ld:0:%d (%p) is %s mode\n",
5853 	    __func__, fcport->port_name, vha->host_no,
5854 	    rport->scsi_target_id, rport,
5855 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
5856 	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
5857 }
5858 
5859 /*
5860  * qla2x00_update_fcport
5861  *	Updates device on list.
5862  *
5863  * Input:
5864  *	ha = adapter block pointer.
5865  *	fcport = port structure pointer.
5866  *
5867  * Return:
5868  *	0  - Success
5869  *  BIT_0 - error
5870  *
5871  * Context:
5872  *	Kernel context.
5873  */
5874 void
5875 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
5876 {
5877 	if (IS_SW_RESV_ADDR(fcport->d_id))
5878 		return;
5879 
5880 	ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %8phC\n",
5881 	    __func__, fcport->port_name);
5882 
5883 	qla2x00_set_fcport_disc_state(fcport, DSC_UPD_FCPORT);
5884 	fcport->login_retry = vha->hw->login_retry_count;
5885 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
5886 	fcport->deleted = 0;
5887 	if (vha->hw->current_topology == ISP_CFG_NL)
5888 		fcport->logout_on_delete = 0;
5889 	else
5890 		fcport->logout_on_delete = 1;
5891 	fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
5892 
5893 	if (fcport->tgt_link_down_time < fcport->dev_loss_tmo) {
5894 		fcport->tgt_short_link_down_cnt++;
5895 		fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
5896 	}
5897 
5898 	switch (vha->hw->current_topology) {
5899 	case ISP_CFG_N:
5900 	case ISP_CFG_NL:
5901 		fcport->keep_nport_handle = 1;
5902 		break;
5903 	default:
5904 		break;
5905 	}
5906 
5907 	qla2x00_iidma_fcport(vha, fcport);
5908 
5909 	qla2x00_dfs_create_rport(vha, fcport);
5910 
5911 	qla24xx_update_fcport_fcp_prio(vha, fcport);
5912 
5913 	switch (vha->host->active_mode) {
5914 	case MODE_INITIATOR:
5915 		qla2x00_reg_remote_port(vha, fcport);
5916 		break;
5917 	case MODE_TARGET:
5918 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5919 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5920 			qlt_fc_port_added(vha, fcport);
5921 		break;
5922 	case MODE_DUAL:
5923 		qla2x00_reg_remote_port(vha, fcport);
5924 		if (!vha->vha_tgt.qla_tgt->tgt_stop &&
5925 			!vha->vha_tgt.qla_tgt->tgt_stopped)
5926 			qlt_fc_port_added(vha, fcport);
5927 		break;
5928 	default:
5929 		break;
5930 	}
5931 
5932 	if (NVME_TARGET(vha->hw, fcport))
5933 		qla_nvme_register_remote(vha, fcport);
5934 
5935 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
5936 
5937 	if (IS_IIDMA_CAPABLE(vha->hw) && vha->hw->flags.gpsc_supported) {
5938 		if (fcport->id_changed) {
5939 			fcport->id_changed = 0;
5940 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5941 			    "%s %d %8phC post gfpnid fcp_cnt %d\n",
5942 			    __func__, __LINE__, fcport->port_name,
5943 			    vha->fcport_count);
5944 			qla24xx_post_gfpnid_work(vha, fcport);
5945 		} else {
5946 			ql_dbg(ql_dbg_disc, vha, 0x20d7,
5947 			    "%s %d %8phC post gpsc fcp_cnt %d\n",
5948 			    __func__, __LINE__, fcport->port_name,
5949 			    vha->fcport_count);
5950 			qla24xx_post_gpsc_work(vha, fcport);
5951 		}
5952 	}
5953 
5954 	qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);
5955 }
5956 
5957 void qla_register_fcport_fn(struct work_struct *work)
5958 {
5959 	fc_port_t *fcport = container_of(work, struct fc_port, reg_work);
5960 	u32 rscn_gen = fcport->rscn_gen;
5961 	u16 data[2];
5962 
5963 	if (IS_SW_RESV_ADDR(fcport->d_id))
5964 		return;
5965 
5966 	qla2x00_update_fcport(fcport->vha, fcport);
5967 
5968 	ql_dbg(ql_dbg_disc, fcport->vha, 0x911e,
5969 	       "%s rscn gen %d/%d next DS %d\n", __func__,
5970 	       rscn_gen, fcport->rscn_gen, fcport->next_disc_state);
5971 
5972 	if (rscn_gen != fcport->rscn_gen) {
5973 		/* RSCN(s) came in while registration */
5974 		switch (fcport->next_disc_state) {
5975 		case DSC_DELETE_PEND:
5976 			qlt_schedule_sess_for_deletion(fcport);
5977 			break;
5978 		case DSC_ADISC:
5979 			data[0] = data[1] = 0;
5980 			qla2x00_post_async_adisc_work(fcport->vha, fcport,
5981 			    data);
5982 			break;
5983 		default:
5984 			break;
5985 		}
5986 	}
5987 }
5988 
5989 /*
5990  * qla2x00_configure_fabric
5991  *      Setup SNS devices with loop ID's.
5992  *
5993  * Input:
5994  *      ha = adapter block pointer.
5995  *
5996  * Returns:
5997  *      0 = success.
5998  *      BIT_0 = error
5999  */
6000 static int
6001 qla2x00_configure_fabric(scsi_qla_host_t *vha)
6002 {
6003 	int	rval;
6004 	fc_port_t	*fcport;
6005 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6006 	uint16_t	loop_id;
6007 	LIST_HEAD(new_fcports);
6008 	struct qla_hw_data *ha = vha->hw;
6009 	int		discovery_gen;
6010 
6011 	/* If FL port exists, then SNS is present */
6012 	if (IS_FWI2_CAPABLE(ha))
6013 		loop_id = NPH_F_PORT;
6014 	else
6015 		loop_id = SNS_FL_PORT;
6016 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
6017 	if (rval != QLA_SUCCESS) {
6018 		ql_dbg(ql_dbg_disc, vha, 0x20a0,
6019 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
6020 
6021 		vha->device_flags &= ~SWITCH_FOUND;
6022 		return (QLA_SUCCESS);
6023 	}
6024 	vha->device_flags |= SWITCH_FOUND;
6025 
6026 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_port_name, 0);
6027 	if (rval != QLA_SUCCESS)
6028 		ql_dbg(ql_dbg_disc, vha, 0x20ff,
6029 		    "Failed to get Fabric Port Name\n");
6030 
6031 	if (qla_tgt_mode_enabled(vha) || qla_dual_mode_enabled(vha)) {
6032 		rval = qla2x00_send_change_request(vha, 0x3, 0);
6033 		if (rval != QLA_SUCCESS)
6034 			ql_log(ql_log_warn, vha, 0x121,
6035 			    "Failed to enable receiving of RSCN requests: 0x%x.\n",
6036 			    rval);
6037 	}
6038 
6039 	do {
6040 		qla2x00_mgmt_svr_login(vha);
6041 
6042 		/* Ensure we are logged into the SNS. */
6043 		loop_id = NPH_SNS_LID(ha);
6044 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
6045 		    0xfc, mb, BIT_1|BIT_0);
6046 		if (rval != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
6047 			ql_dbg(ql_dbg_disc, vha, 0x20a1,
6048 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x (%x).\n",
6049 			    loop_id, mb[0], mb[1], mb[2], mb[6], mb[7], rval);
6050 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6051 			return rval;
6052 		}
6053 
6054 		/* FDMI support. */
6055 		if (ql2xfdmienable &&
6056 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
6057 			qla2x00_fdmi_register(vha);
6058 
6059 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
6060 			if (qla2x00_rft_id(vha)) {
6061 				/* EMPTY */
6062 				ql_dbg(ql_dbg_disc, vha, 0x20a2,
6063 				    "Register FC-4 TYPE failed.\n");
6064 				if (test_bit(LOOP_RESYNC_NEEDED,
6065 				    &vha->dpc_flags))
6066 					break;
6067 			}
6068 			if (qla2x00_rff_id(vha, FC4_TYPE_FCP_SCSI)) {
6069 				/* EMPTY */
6070 				ql_dbg(ql_dbg_disc, vha, 0x209a,
6071 				    "Register FC-4 Features failed.\n");
6072 				if (test_bit(LOOP_RESYNC_NEEDED,
6073 				    &vha->dpc_flags))
6074 					break;
6075 			}
6076 			if (vha->flags.nvme_enabled) {
6077 				if (qla2x00_rff_id(vha, FC_TYPE_NVME)) {
6078 					ql_dbg(ql_dbg_disc, vha, 0x2049,
6079 					    "Register NVME FC Type Features failed.\n");
6080 				}
6081 			}
6082 			if (qla2x00_rnn_id(vha)) {
6083 				/* EMPTY */
6084 				ql_dbg(ql_dbg_disc, vha, 0x2104,
6085 				    "Register Node Name failed.\n");
6086 				if (test_bit(LOOP_RESYNC_NEEDED,
6087 				    &vha->dpc_flags))
6088 					break;
6089 			} else if (qla2x00_rsnn_nn(vha)) {
6090 				/* EMPTY */
6091 				ql_dbg(ql_dbg_disc, vha, 0x209b,
6092 				    "Register Symbolic Node Name failed.\n");
6093 				if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6094 					break;
6095 			}
6096 		}
6097 
6098 
6099 		/* Mark the time right before querying FW for connected ports.
6100 		 * This process is long, asynchronous and by the time it's done,
6101 		 * collected information might not be accurate anymore. E.g.
6102 		 * disconnected port might have re-connected and a brand new
6103 		 * session has been created. In this case session's generation
6104 		 * will be newer than discovery_gen. */
6105 		qlt_do_generation_tick(vha, &discovery_gen);
6106 
6107 		if (USE_ASYNC_SCAN(ha)) {
6108 			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI,
6109 			    NULL);
6110 			if (rval)
6111 				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6112 		} else  {
6113 			list_for_each_entry(fcport, &vha->vp_fcports, list)
6114 				fcport->scan_state = QLA_FCPORT_SCAN;
6115 
6116 			rval = qla2x00_find_all_fabric_devs(vha);
6117 		}
6118 		if (rval != QLA_SUCCESS)
6119 			break;
6120 	} while (0);
6121 
6122 	if (!vha->nvme_local_port && vha->flags.nvme_enabled)
6123 		qla_nvme_register_hba(vha);
6124 
6125 	if (rval)
6126 		ql_dbg(ql_dbg_disc, vha, 0x2068,
6127 		    "Configure fabric error exit rval=%d.\n", rval);
6128 
6129 	return (rval);
6130 }
6131 
6132 /*
6133  * qla2x00_find_all_fabric_devs
6134  *
6135  * Input:
6136  *	ha = adapter block pointer.
6137  *	dev = database device entry pointer.
6138  *
6139  * Returns:
6140  *	0 = success.
6141  *
6142  * Context:
6143  *	Kernel context.
6144  */
6145 static int
6146 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
6147 {
6148 	int		rval;
6149 	uint16_t	loop_id;
6150 	fc_port_t	*fcport, *new_fcport;
6151 	int		found;
6152 
6153 	sw_info_t	*swl;
6154 	int		swl_idx;
6155 	int		first_dev, last_dev;
6156 	port_id_t	wrap = {}, nxt_d_id;
6157 	struct qla_hw_data *ha = vha->hw;
6158 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
6159 	unsigned long flags;
6160 
6161 	rval = QLA_SUCCESS;
6162 
6163 	/* Try GID_PT to get device list, else GAN. */
6164 	if (!ha->swl)
6165 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
6166 		    GFP_KERNEL);
6167 	swl = ha->swl;
6168 	if (!swl) {
6169 		/*EMPTY*/
6170 		ql_dbg(ql_dbg_disc, vha, 0x209c,
6171 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
6172 	} else {
6173 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
6174 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
6175 			swl = NULL;
6176 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6177 				return rval;
6178 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
6179 			swl = NULL;
6180 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6181 				return rval;
6182 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
6183 			swl = NULL;
6184 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6185 				return rval;
6186 		} else if (qla2x00_gfpn_id(vha, swl) != QLA_SUCCESS) {
6187 			swl = NULL;
6188 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6189 				return rval;
6190 		}
6191 
6192 		/* If other queries succeeded probe for FC-4 type */
6193 		if (swl) {
6194 			qla2x00_gff_id(vha, swl);
6195 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6196 				return rval;
6197 		}
6198 	}
6199 	swl_idx = 0;
6200 
6201 	/* Allocate temporary fcport for any new fcports discovered. */
6202 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6203 	if (new_fcport == NULL) {
6204 		ql_log(ql_log_warn, vha, 0x209d,
6205 		    "Failed to allocate memory for fcport.\n");
6206 		return (QLA_MEMORY_ALLOC_FAILED);
6207 	}
6208 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
6209 	/* Set start port ID scan at adapter ID. */
6210 	first_dev = 1;
6211 	last_dev = 0;
6212 
6213 	/* Starting free loop ID. */
6214 	loop_id = ha->min_external_loopid;
6215 	for (; loop_id <= ha->max_loop_id; loop_id++) {
6216 		if (qla2x00_is_reserved_id(vha, loop_id))
6217 			continue;
6218 
6219 		if (ha->current_topology == ISP_CFG_FL &&
6220 		    (atomic_read(&vha->loop_down_timer) ||
6221 		     LOOP_TRANSITION(vha))) {
6222 			atomic_set(&vha->loop_down_timer, 0);
6223 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6224 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
6225 			break;
6226 		}
6227 
6228 		if (swl != NULL) {
6229 			if (last_dev) {
6230 				wrap.b24 = new_fcport->d_id.b24;
6231 			} else {
6232 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
6233 				memcpy(new_fcport->node_name,
6234 				    swl[swl_idx].node_name, WWN_SIZE);
6235 				memcpy(new_fcport->port_name,
6236 				    swl[swl_idx].port_name, WWN_SIZE);
6237 				memcpy(new_fcport->fabric_port_name,
6238 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
6239 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
6240 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
6241 
6242 				new_fcport->nvme_flag = 0;
6243 				if (vha->flags.nvme_enabled &&
6244 				    swl[swl_idx].fc4_type & FS_FC4TYPE_NVME) {
6245 					ql_log(ql_log_info, vha, 0x2131,
6246 					    "FOUND: NVME port %8phC as FC Type 28h\n",
6247 					    new_fcport->port_name);
6248 				}
6249 
6250 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
6251 					last_dev = 1;
6252 				}
6253 				swl_idx++;
6254 			}
6255 		} else {
6256 			/* Send GA_NXT to the switch */
6257 			rval = qla2x00_ga_nxt(vha, new_fcport);
6258 			if (rval != QLA_SUCCESS) {
6259 				ql_log(ql_log_warn, vha, 0x209e,
6260 				    "SNS scan failed -- assuming "
6261 				    "zero-entry result.\n");
6262 				rval = QLA_SUCCESS;
6263 				break;
6264 			}
6265 		}
6266 
6267 		/* If wrap on switch device list, exit. */
6268 		if (first_dev) {
6269 			wrap.b24 = new_fcport->d_id.b24;
6270 			first_dev = 0;
6271 		} else if (new_fcport->d_id.b24 == wrap.b24) {
6272 			ql_dbg(ql_dbg_disc, vha, 0x209f,
6273 			    "Device wrap (%02x%02x%02x).\n",
6274 			    new_fcport->d_id.b.domain,
6275 			    new_fcport->d_id.b.area,
6276 			    new_fcport->d_id.b.al_pa);
6277 			break;
6278 		}
6279 
6280 		/* Bypass if same physical adapter. */
6281 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
6282 			continue;
6283 
6284 		/* Bypass virtual ports of the same host. */
6285 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
6286 			continue;
6287 
6288 		/* Bypass if same domain and area of adapter. */
6289 		if (((new_fcport->d_id.b24 & 0xffff00) ==
6290 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
6291 			ISP_CFG_FL)
6292 			    continue;
6293 
6294 		/* Bypass reserved domain fields. */
6295 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
6296 			continue;
6297 
6298 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
6299 		if (ql2xgffidenable &&
6300 		    (!(new_fcport->fc4_type & FS_FC4TYPE_FCP) &&
6301 		    new_fcport->fc4_type != 0))
6302 			continue;
6303 
6304 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
6305 
6306 		/* Locate matching device in database. */
6307 		found = 0;
6308 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
6309 			if (memcmp(new_fcport->port_name, fcport->port_name,
6310 			    WWN_SIZE))
6311 				continue;
6312 
6313 			fcport->scan_state = QLA_FCPORT_FOUND;
6314 
6315 			found++;
6316 
6317 			/* Update port state. */
6318 			memcpy(fcport->fabric_port_name,
6319 			    new_fcport->fabric_port_name, WWN_SIZE);
6320 			fcport->fp_speed = new_fcport->fp_speed;
6321 
6322 			/*
6323 			 * If address the same and state FCS_ONLINE
6324 			 * (or in target mode), nothing changed.
6325 			 */
6326 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
6327 			    (atomic_read(&fcport->state) == FCS_ONLINE ||
6328 			     (vha->host->active_mode == MODE_TARGET))) {
6329 				break;
6330 			}
6331 
6332 			if (fcport->login_retry == 0)
6333 				fcport->login_retry =
6334 					vha->hw->login_retry_count;
6335 			/*
6336 			 * If device was not a fabric device before.
6337 			 */
6338 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
6339 				fcport->d_id.b24 = new_fcport->d_id.b24;
6340 				qla2x00_clear_loop_id(fcport);
6341 				fcport->flags |= (FCF_FABRIC_DEVICE |
6342 				    FCF_LOGIN_NEEDED);
6343 				break;
6344 			}
6345 
6346 			/*
6347 			 * Port ID changed or device was marked to be updated;
6348 			 * Log it out if still logged in and mark it for
6349 			 * relogin later.
6350 			 */
6351 			if (qla_tgt_mode_enabled(base_vha)) {
6352 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf080,
6353 					 "port changed FC ID, %8phC"
6354 					 " old %x:%x:%x (loop_id 0x%04x)-> new %x:%x:%x\n",
6355 					 fcport->port_name,
6356 					 fcport->d_id.b.domain,
6357 					 fcport->d_id.b.area,
6358 					 fcport->d_id.b.al_pa,
6359 					 fcport->loop_id,
6360 					 new_fcport->d_id.b.domain,
6361 					 new_fcport->d_id.b.area,
6362 					 new_fcport->d_id.b.al_pa);
6363 				fcport->d_id.b24 = new_fcport->d_id.b24;
6364 				break;
6365 			}
6366 
6367 			fcport->d_id.b24 = new_fcport->d_id.b24;
6368 			fcport->flags |= FCF_LOGIN_NEEDED;
6369 			break;
6370 		}
6371 
6372 		if (found && NVME_TARGET(vha->hw, fcport)) {
6373 			if (fcport->disc_state == DSC_DELETE_PEND) {
6374 				qla2x00_set_fcport_disc_state(fcport, DSC_GNL);
6375 				vha->fcport_count--;
6376 				fcport->login_succ = 0;
6377 			}
6378 		}
6379 
6380 		if (found) {
6381 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6382 			continue;
6383 		}
6384 		/* If device was not in our fcports list, then add it. */
6385 		new_fcport->scan_state = QLA_FCPORT_FOUND;
6386 		list_add_tail(&new_fcport->list, &vha->vp_fcports);
6387 
6388 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
6389 
6390 
6391 		/* Allocate a new replacement fcport. */
6392 		nxt_d_id.b24 = new_fcport->d_id.b24;
6393 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
6394 		if (new_fcport == NULL) {
6395 			ql_log(ql_log_warn, vha, 0xd032,
6396 			    "Memory allocation failed for fcport.\n");
6397 			return (QLA_MEMORY_ALLOC_FAILED);
6398 		}
6399 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
6400 		new_fcport->d_id.b24 = nxt_d_id.b24;
6401 	}
6402 
6403 	qla2x00_free_fcport(new_fcport);
6404 
6405 	/*
6406 	 * Logout all previous fabric dev marked lost, except FCP2 devices.
6407 	 */
6408 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
6409 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
6410 			break;
6411 
6412 		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
6413 			continue;
6414 
6415 		if (fcport->scan_state == QLA_FCPORT_SCAN) {
6416 			if ((qla_dual_mode_enabled(vha) ||
6417 			    qla_ini_mode_enabled(vha)) &&
6418 			    atomic_read(&fcport->state) == FCS_ONLINE) {
6419 				qla2x00_mark_device_lost(vha, fcport,
6420 					ql2xplogiabsentdevice);
6421 				if (fcport->loop_id != FC_NO_LOOP_ID &&
6422 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
6423 				    fcport->port_type != FCT_INITIATOR &&
6424 				    fcport->port_type != FCT_BROADCAST) {
6425 					ql_dbg(ql_dbg_disc, vha, 0x20f0,
6426 					    "%s %d %8phC post del sess\n",
6427 					    __func__, __LINE__,
6428 					    fcport->port_name);
6429 					qlt_schedule_sess_for_deletion(fcport);
6430 					continue;
6431 				}
6432 			}
6433 		}
6434 
6435 		if (fcport->scan_state == QLA_FCPORT_FOUND &&
6436 		    (fcport->flags & FCF_LOGIN_NEEDED) != 0)
6437 			qla24xx_fcport_handle_login(vha, fcport);
6438 	}
6439 	return (rval);
6440 }
6441 
6442 /* FW does not set aside Loop id for MGMT Server/FFFFFAh */
6443 int
6444 qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *vha)
6445 {
6446 	int loop_id = FC_NO_LOOP_ID;
6447 	int lid = NPH_MGMT_SERVER - vha->vp_idx;
6448 	unsigned long flags;
6449 	struct qla_hw_data *ha = vha->hw;
6450 
6451 	if (vha->vp_idx == 0) {
6452 		set_bit(NPH_MGMT_SERVER, ha->loop_id_map);
6453 		return NPH_MGMT_SERVER;
6454 	}
6455 
6456 	/* pick id from high and work down to low */
6457 	spin_lock_irqsave(&ha->vport_slock, flags);
6458 	for (; lid > 0; lid--) {
6459 		if (!test_bit(lid, vha->hw->loop_id_map)) {
6460 			set_bit(lid, vha->hw->loop_id_map);
6461 			loop_id = lid;
6462 			break;
6463 		}
6464 	}
6465 	spin_unlock_irqrestore(&ha->vport_slock, flags);
6466 
6467 	return loop_id;
6468 }
6469 
6470 /*
6471  * qla2x00_fabric_login
6472  *	Issue fabric login command.
6473  *
6474  * Input:
6475  *	ha = adapter block pointer.
6476  *	device = pointer to FC device type structure.
6477  *
6478  * Returns:
6479  *      0 - Login successfully
6480  *      1 - Login failed
6481  *      2 - Initiator device
6482  *      3 - Fatal error
6483  */
6484 int
6485 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
6486     uint16_t *next_loopid)
6487 {
6488 	int	rval;
6489 	int	retry;
6490 	uint16_t tmp_loopid;
6491 	uint16_t mb[MAILBOX_REGISTER_COUNT];
6492 	struct qla_hw_data *ha = vha->hw;
6493 
6494 	retry = 0;
6495 	tmp_loopid = 0;
6496 
6497 	for (;;) {
6498 		ql_dbg(ql_dbg_disc, vha, 0x2000,
6499 		    "Trying Fabric Login w/loop id 0x%04x for port "
6500 		    "%02x%02x%02x.\n",
6501 		    fcport->loop_id, fcport->d_id.b.domain,
6502 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6503 
6504 		/* Login fcport on switch. */
6505 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
6506 		    fcport->d_id.b.domain, fcport->d_id.b.area,
6507 		    fcport->d_id.b.al_pa, mb, BIT_0);
6508 		if (rval != QLA_SUCCESS) {
6509 			return rval;
6510 		}
6511 		if (mb[0] == MBS_PORT_ID_USED) {
6512 			/*
6513 			 * Device has another loop ID.  The firmware team
6514 			 * recommends the driver perform an implicit login with
6515 			 * the specified ID again. The ID we just used is save
6516 			 * here so we return with an ID that can be tried by
6517 			 * the next login.
6518 			 */
6519 			retry++;
6520 			tmp_loopid = fcport->loop_id;
6521 			fcport->loop_id = mb[1];
6522 
6523 			ql_dbg(ql_dbg_disc, vha, 0x2001,
6524 			    "Fabric Login: port in use - next loop "
6525 			    "id=0x%04x, port id= %02x%02x%02x.\n",
6526 			    fcport->loop_id, fcport->d_id.b.domain,
6527 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6528 
6529 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
6530 			/*
6531 			 * Login succeeded.
6532 			 */
6533 			if (retry) {
6534 				/* A retry occurred before. */
6535 				*next_loopid = tmp_loopid;
6536 			} else {
6537 				/*
6538 				 * No retry occurred before. Just increment the
6539 				 * ID value for next login.
6540 				 */
6541 				*next_loopid = (fcport->loop_id + 1);
6542 			}
6543 
6544 			if (mb[1] & BIT_0) {
6545 				fcport->port_type = FCT_INITIATOR;
6546 			} else {
6547 				fcport->port_type = FCT_TARGET;
6548 				if (mb[1] & BIT_1) {
6549 					fcport->flags |= FCF_FCP2_DEVICE;
6550 				}
6551 			}
6552 
6553 			if (mb[10] & BIT_0)
6554 				fcport->supported_classes |= FC_COS_CLASS2;
6555 			if (mb[10] & BIT_1)
6556 				fcport->supported_classes |= FC_COS_CLASS3;
6557 
6558 			if (IS_FWI2_CAPABLE(ha)) {
6559 				if (mb[10] & BIT_7)
6560 					fcport->flags |=
6561 					    FCF_CONF_COMP_SUPPORTED;
6562 			}
6563 
6564 			rval = QLA_SUCCESS;
6565 			break;
6566 		} else if (mb[0] == MBS_LOOP_ID_USED) {
6567 			/*
6568 			 * Loop ID already used, try next loop ID.
6569 			 */
6570 			fcport->loop_id++;
6571 			rval = qla2x00_find_new_loop_id(vha, fcport);
6572 			if (rval != QLA_SUCCESS) {
6573 				/* Ran out of loop IDs to use */
6574 				break;
6575 			}
6576 		} else if (mb[0] == MBS_COMMAND_ERROR) {
6577 			/*
6578 			 * Firmware possibly timed out during login. If NO
6579 			 * retries are left to do then the device is declared
6580 			 * dead.
6581 			 */
6582 			*next_loopid = fcport->loop_id;
6583 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6584 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6585 			    fcport->d_id.b.al_pa);
6586 			qla2x00_mark_device_lost(vha, fcport, 1);
6587 
6588 			rval = 1;
6589 			break;
6590 		} else {
6591 			/*
6592 			 * unrecoverable / not handled error
6593 			 */
6594 			ql_dbg(ql_dbg_disc, vha, 0x2002,
6595 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
6596 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
6597 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
6598 			    fcport->loop_id, jiffies);
6599 
6600 			*next_loopid = fcport->loop_id;
6601 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
6602 			    fcport->d_id.b.domain, fcport->d_id.b.area,
6603 			    fcport->d_id.b.al_pa);
6604 			qla2x00_clear_loop_id(fcport);
6605 			fcport->login_retry = 0;
6606 
6607 			rval = 3;
6608 			break;
6609 		}
6610 	}
6611 
6612 	return (rval);
6613 }
6614 
6615 /*
6616  * qla2x00_local_device_login
6617  *	Issue local device login command.
6618  *
6619  * Input:
6620  *	ha = adapter block pointer.
6621  *	loop_id = loop id of device to login to.
6622  *
6623  * Returns (Where's the #define!!!!):
6624  *      0 - Login successfully
6625  *      1 - Login failed
6626  *      3 - Fatal error
6627  */
6628 int
6629 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
6630 {
6631 	int		rval;
6632 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
6633 
6634 	memset(mb, 0, sizeof(mb));
6635 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
6636 	if (rval == QLA_SUCCESS) {
6637 		/* Interrogate mailbox registers for any errors */
6638 		if (mb[0] == MBS_COMMAND_ERROR)
6639 			rval = 1;
6640 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
6641 			/* device not in PCB table */
6642 			rval = 3;
6643 	}
6644 
6645 	return (rval);
6646 }
6647 
6648 /*
6649  *  qla2x00_loop_resync
6650  *      Resync with fibre channel devices.
6651  *
6652  * Input:
6653  *      ha = adapter block pointer.
6654  *
6655  * Returns:
6656  *      0 = success
6657  */
6658 int
6659 qla2x00_loop_resync(scsi_qla_host_t *vha)
6660 {
6661 	int rval = QLA_SUCCESS;
6662 	uint32_t wait_time;
6663 
6664 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
6665 	if (vha->flags.online) {
6666 		if (!(rval = qla2x00_fw_ready(vha))) {
6667 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
6668 			wait_time = 256;
6669 			do {
6670 				if (!IS_QLAFX00(vha->hw)) {
6671 					/*
6672 					 * Issue a marker after FW becomes
6673 					 * ready.
6674 					 */
6675 					qla2x00_marker(vha, vha->hw->base_qpair,
6676 					    0, 0, MK_SYNC_ALL);
6677 					vha->marker_needed = 0;
6678 				}
6679 
6680 				/* Remap devices on Loop. */
6681 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
6682 
6683 				if (IS_QLAFX00(vha->hw))
6684 					qlafx00_configure_devices(vha);
6685 				else
6686 					qla2x00_configure_loop(vha);
6687 
6688 				wait_time--;
6689 			} while (!atomic_read(&vha->loop_down_timer) &&
6690 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6691 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
6692 				&vha->dpc_flags)));
6693 		}
6694 	}
6695 
6696 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
6697 		return (QLA_FUNCTION_FAILED);
6698 
6699 	if (rval)
6700 		ql_dbg(ql_dbg_disc, vha, 0x206c,
6701 		    "%s *** FAILED ***.\n", __func__);
6702 
6703 	return (rval);
6704 }
6705 
6706 /*
6707 * qla2x00_perform_loop_resync
6708 * Description: This function will set the appropriate flags and call
6709 *              qla2x00_loop_resync. If successful loop will be resynced
6710 * Arguments : scsi_qla_host_t pointer
6711 * returm    : Success or Failure
6712 */
6713 
6714 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
6715 {
6716 	int32_t rval = 0;
6717 
6718 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
6719 		/*Configure the flags so that resync happens properly*/
6720 		atomic_set(&ha->loop_down_timer, 0);
6721 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
6722 			atomic_set(&ha->loop_state, LOOP_UP);
6723 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
6724 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
6725 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
6726 
6727 			rval = qla2x00_loop_resync(ha);
6728 		} else
6729 			atomic_set(&ha->loop_state, LOOP_DEAD);
6730 
6731 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
6732 	}
6733 
6734 	return rval;
6735 }
6736 
6737 /* Assumes idc_lock always held on entry */
6738 void
6739 qla83xx_reset_ownership(scsi_qla_host_t *vha)
6740 {
6741 	struct qla_hw_data *ha = vha->hw;
6742 	uint32_t drv_presence, drv_presence_mask;
6743 	uint32_t dev_part_info1, dev_part_info2, class_type;
6744 	uint32_t class_type_mask = 0x3;
6745 	uint16_t fcoe_other_function = 0xffff, i;
6746 
6747 	if (IS_QLA8044(ha)) {
6748 		drv_presence = qla8044_rd_direct(vha,
6749 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
6750 		dev_part_info1 = qla8044_rd_direct(vha,
6751 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
6752 		dev_part_info2 = qla8044_rd_direct(vha,
6753 		    QLA8044_CRB_DEV_PART_INFO2);
6754 	} else {
6755 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6756 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
6757 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
6758 	}
6759 	for (i = 0; i < 8; i++) {
6760 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
6761 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6762 		    (i != ha->portnum)) {
6763 			fcoe_other_function = i;
6764 			break;
6765 		}
6766 	}
6767 	if (fcoe_other_function == 0xffff) {
6768 		for (i = 0; i < 8; i++) {
6769 			class_type = ((dev_part_info2 >> (i * 4)) &
6770 			    class_type_mask);
6771 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
6772 			    ((i + 8) != ha->portnum)) {
6773 				fcoe_other_function = i + 8;
6774 				break;
6775 			}
6776 		}
6777 	}
6778 	/*
6779 	 * Prepare drv-presence mask based on fcoe functions present.
6780 	 * However consider only valid physical fcoe function numbers (0-15).
6781 	 */
6782 	drv_presence_mask = ~((1 << (ha->portnum)) |
6783 			((fcoe_other_function == 0xffff) ?
6784 			 0 : (1 << (fcoe_other_function))));
6785 
6786 	/* We are the reset owner iff:
6787 	 *    - No other protocol drivers present.
6788 	 *    - This is the lowest among fcoe functions. */
6789 	if (!(drv_presence & drv_presence_mask) &&
6790 			(ha->portnum < fcoe_other_function)) {
6791 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
6792 		    "This host is Reset owner.\n");
6793 		ha->flags.nic_core_reset_owner = 1;
6794 	}
6795 }
6796 
6797 static int
6798 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
6799 {
6800 	int rval = QLA_SUCCESS;
6801 	struct qla_hw_data *ha = vha->hw;
6802 	uint32_t drv_ack;
6803 
6804 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6805 	if (rval == QLA_SUCCESS) {
6806 		drv_ack |= (1 << ha->portnum);
6807 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6808 	}
6809 
6810 	return rval;
6811 }
6812 
6813 static int
6814 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
6815 {
6816 	int rval = QLA_SUCCESS;
6817 	struct qla_hw_data *ha = vha->hw;
6818 	uint32_t drv_ack;
6819 
6820 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
6821 	if (rval == QLA_SUCCESS) {
6822 		drv_ack &= ~(1 << ha->portnum);
6823 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
6824 	}
6825 
6826 	return rval;
6827 }
6828 
6829 /* Assumes idc-lock always held on entry */
6830 void
6831 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
6832 {
6833 	struct qla_hw_data *ha = vha->hw;
6834 	uint32_t idc_audit_reg = 0, duration_secs = 0;
6835 
6836 	switch (audit_type) {
6837 	case IDC_AUDIT_TIMESTAMP:
6838 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
6839 		idc_audit_reg = (ha->portnum) |
6840 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
6841 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6842 		break;
6843 
6844 	case IDC_AUDIT_COMPLETION:
6845 		duration_secs = ((jiffies_to_msecs(jiffies) -
6846 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
6847 		idc_audit_reg = (ha->portnum) |
6848 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
6849 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
6850 		break;
6851 
6852 	default:
6853 		ql_log(ql_log_warn, vha, 0xb078,
6854 		    "Invalid audit type specified.\n");
6855 		break;
6856 	}
6857 }
6858 
6859 /* Assumes idc_lock always held on entry */
6860 static int
6861 qla83xx_initiating_reset(scsi_qla_host_t *vha)
6862 {
6863 	struct qla_hw_data *ha = vha->hw;
6864 	uint32_t  idc_control, dev_state;
6865 
6866 	__qla83xx_get_idc_control(vha, &idc_control);
6867 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
6868 		ql_log(ql_log_info, vha, 0xb080,
6869 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
6870 		    idc_control);
6871 		return QLA_FUNCTION_FAILED;
6872 	}
6873 
6874 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
6875 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6876 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
6877 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
6878 		    QLA8XXX_DEV_NEED_RESET);
6879 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
6880 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
6881 	} else {
6882 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n",
6883 				qdev_state(dev_state));
6884 
6885 		/* SV: XXX: Is timeout required here? */
6886 		/* Wait for IDC state change READY -> NEED_RESET */
6887 		while (dev_state == QLA8XXX_DEV_READY) {
6888 			qla83xx_idc_unlock(vha, 0);
6889 			msleep(200);
6890 			qla83xx_idc_lock(vha, 0);
6891 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
6892 		}
6893 	}
6894 
6895 	/* Send IDC ack by writing to drv-ack register */
6896 	__qla83xx_set_drv_ack(vha);
6897 
6898 	return QLA_SUCCESS;
6899 }
6900 
6901 int
6902 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
6903 {
6904 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6905 }
6906 
6907 int
6908 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
6909 {
6910 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
6911 }
6912 
6913 static int
6914 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
6915 {
6916 	uint32_t drv_presence = 0;
6917 	struct qla_hw_data *ha = vha->hw;
6918 
6919 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
6920 	if (drv_presence & (1 << ha->portnum))
6921 		return QLA_SUCCESS;
6922 	else
6923 		return QLA_TEST_FAILED;
6924 }
6925 
6926 int
6927 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
6928 {
6929 	int rval = QLA_SUCCESS;
6930 	struct qla_hw_data *ha = vha->hw;
6931 
6932 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
6933 	    "Entered  %s().\n", __func__);
6934 
6935 	if (vha->device_flags & DFLG_DEV_FAILED) {
6936 		ql_log(ql_log_warn, vha, 0xb059,
6937 		    "Device in unrecoverable FAILED state.\n");
6938 		return QLA_FUNCTION_FAILED;
6939 	}
6940 
6941 	qla83xx_idc_lock(vha, 0);
6942 
6943 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
6944 		ql_log(ql_log_warn, vha, 0xb05a,
6945 		    "Function=0x%x has been removed from IDC participation.\n",
6946 		    ha->portnum);
6947 		rval = QLA_FUNCTION_FAILED;
6948 		goto exit;
6949 	}
6950 
6951 	qla83xx_reset_ownership(vha);
6952 
6953 	rval = qla83xx_initiating_reset(vha);
6954 
6955 	/*
6956 	 * Perform reset if we are the reset-owner,
6957 	 * else wait till IDC state changes to READY/FAILED.
6958 	 */
6959 	if (rval == QLA_SUCCESS) {
6960 		rval = qla83xx_idc_state_handler(vha);
6961 
6962 		if (rval == QLA_SUCCESS)
6963 			ha->flags.nic_core_hung = 0;
6964 		__qla83xx_clear_drv_ack(vha);
6965 	}
6966 
6967 exit:
6968 	qla83xx_idc_unlock(vha, 0);
6969 
6970 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
6971 
6972 	return rval;
6973 }
6974 
6975 int
6976 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
6977 {
6978 	struct qla_hw_data *ha = vha->hw;
6979 	int rval = QLA_FUNCTION_FAILED;
6980 
6981 	if (!IS_MCTP_CAPABLE(ha)) {
6982 		/* This message can be removed from the final version */
6983 		ql_log(ql_log_info, vha, 0x506d,
6984 		    "This board is not MCTP capable\n");
6985 		return rval;
6986 	}
6987 
6988 	if (!ha->mctp_dump) {
6989 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
6990 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
6991 
6992 		if (!ha->mctp_dump) {
6993 			ql_log(ql_log_warn, vha, 0x506e,
6994 			    "Failed to allocate memory for mctp dump\n");
6995 			return rval;
6996 		}
6997 	}
6998 
6999 #define MCTP_DUMP_STR_ADDR	0x00000000
7000 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
7001 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
7002 	if (rval != QLA_SUCCESS) {
7003 		ql_log(ql_log_warn, vha, 0x506f,
7004 		    "Failed to capture mctp dump\n");
7005 	} else {
7006 		ql_log(ql_log_info, vha, 0x5070,
7007 		    "Mctp dump capture for host (%ld/%p).\n",
7008 		    vha->host_no, ha->mctp_dump);
7009 		ha->mctp_dumped = 1;
7010 	}
7011 
7012 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
7013 		ha->flags.nic_core_reset_hdlr_active = 1;
7014 		rval = qla83xx_restart_nic_firmware(vha);
7015 		if (rval)
7016 			/* NIC Core reset failed. */
7017 			ql_log(ql_log_warn, vha, 0x5071,
7018 			    "Failed to restart nic firmware\n");
7019 		else
7020 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
7021 			    "Restarted NIC firmware successfully.\n");
7022 		ha->flags.nic_core_reset_hdlr_active = 0;
7023 	}
7024 
7025 	return rval;
7026 
7027 }
7028 
7029 /*
7030 * qla2x00_quiesce_io
7031 * Description: This function will block the new I/Os
7032 *              Its not aborting any I/Os as context
7033 *              is not destroyed during quiescence
7034 * Arguments: scsi_qla_host_t
7035 * return   : void
7036 */
7037 void
7038 qla2x00_quiesce_io(scsi_qla_host_t *vha)
7039 {
7040 	struct qla_hw_data *ha = vha->hw;
7041 	struct scsi_qla_host *vp, *tvp;
7042 	unsigned long flags;
7043 
7044 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
7045 	    "Quiescing I/O - ha=%p.\n", ha);
7046 
7047 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
7048 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
7049 		atomic_set(&vha->loop_state, LOOP_DOWN);
7050 		qla2x00_mark_all_devices_lost(vha);
7051 
7052 		spin_lock_irqsave(&ha->vport_slock, flags);
7053 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7054 			atomic_inc(&vp->vref_count);
7055 			spin_unlock_irqrestore(&ha->vport_slock, flags);
7056 
7057 			qla2x00_mark_all_devices_lost(vp);
7058 
7059 			spin_lock_irqsave(&ha->vport_slock, flags);
7060 			atomic_dec(&vp->vref_count);
7061 		}
7062 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7063 	} else {
7064 		if (!atomic_read(&vha->loop_down_timer))
7065 			atomic_set(&vha->loop_down_timer,
7066 					LOOP_DOWN_TIME);
7067 	}
7068 	/* Wait for pending cmds to complete */
7069 	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
7070 		     != QLA_SUCCESS);
7071 }
7072 
7073 void
7074 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
7075 {
7076 	struct qla_hw_data *ha = vha->hw;
7077 	struct scsi_qla_host *vp, *tvp;
7078 	unsigned long flags;
7079 	fc_port_t *fcport;
7080 	u16 i;
7081 
7082 	/* For ISP82XX, driver waits for completion of the commands.
7083 	 * online flag should be set.
7084 	 */
7085 	if (!(IS_P3P_TYPE(ha)))
7086 		vha->flags.online = 0;
7087 	ha->flags.chip_reset_done = 0;
7088 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
7089 	vha->qla_stats.total_isp_aborts++;
7090 
7091 	ql_log(ql_log_info, vha, 0x00af,
7092 	    "Performing ISP error recovery - ha=%p.\n", ha);
7093 
7094 	ha->flags.purge_mbox = 1;
7095 	/* For ISP82XX, reset_chip is just disabling interrupts.
7096 	 * Driver waits for the completion of the commands.
7097 	 * the interrupts need to be enabled.
7098 	 */
7099 	if (!(IS_P3P_TYPE(ha)))
7100 		ha->isp_ops->reset_chip(vha);
7101 
7102 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
7103 	SAVE_TOPO(ha);
7104 	ha->flags.rida_fmt2 = 0;
7105 	ha->flags.n2n_ae = 0;
7106 	ha->flags.lip_ae = 0;
7107 	ha->current_topology = 0;
7108 	QLA_FW_STOPPED(ha);
7109 	ha->flags.fw_init_done = 0;
7110 	ha->chip_reset++;
7111 	ha->base_qpair->chip_reset = ha->chip_reset;
7112 	ha->base_qpair->cmd_cnt = ha->base_qpair->cmd_completion_cnt = 0;
7113 	ha->base_qpair->prev_completion_cnt = 0;
7114 	for (i = 0; i < ha->max_qpairs; i++) {
7115 		if (ha->queue_pair_map[i]) {
7116 			ha->queue_pair_map[i]->chip_reset =
7117 				ha->base_qpair->chip_reset;
7118 			ha->queue_pair_map[i]->cmd_cnt =
7119 			    ha->queue_pair_map[i]->cmd_completion_cnt = 0;
7120 			ha->base_qpair->prev_completion_cnt = 0;
7121 		}
7122 	}
7123 
7124 	/* purge MBox commands */
7125 	if (atomic_read(&ha->num_pend_mbx_stage3)) {
7126 		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
7127 		complete(&ha->mbx_intr_comp);
7128 	}
7129 
7130 	i = 0;
7131 	while (atomic_read(&ha->num_pend_mbx_stage3) ||
7132 	    atomic_read(&ha->num_pend_mbx_stage2) ||
7133 	    atomic_read(&ha->num_pend_mbx_stage1)) {
7134 		msleep(20);
7135 		i++;
7136 		if (i > 50)
7137 			break;
7138 	}
7139 	ha->flags.purge_mbox = 0;
7140 
7141 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
7142 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
7143 		atomic_set(&vha->loop_state, LOOP_DOWN);
7144 		qla2x00_mark_all_devices_lost(vha);
7145 
7146 		spin_lock_irqsave(&ha->vport_slock, flags);
7147 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7148 			atomic_inc(&vp->vref_count);
7149 			spin_unlock_irqrestore(&ha->vport_slock, flags);
7150 
7151 			qla2x00_mark_all_devices_lost(vp);
7152 
7153 			spin_lock_irqsave(&ha->vport_slock, flags);
7154 			atomic_dec(&vp->vref_count);
7155 		}
7156 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7157 	} else {
7158 		if (!atomic_read(&vha->loop_down_timer))
7159 			atomic_set(&vha->loop_down_timer,
7160 			    LOOP_DOWN_TIME);
7161 	}
7162 
7163 	/* Clear all async request states across all VPs. */
7164 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
7165 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7166 		fcport->scan_state = 0;
7167 	}
7168 	spin_lock_irqsave(&ha->vport_slock, flags);
7169 	list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7170 		atomic_inc(&vp->vref_count);
7171 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7172 
7173 		list_for_each_entry(fcport, &vp->vp_fcports, list)
7174 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
7175 
7176 		spin_lock_irqsave(&ha->vport_slock, flags);
7177 		atomic_dec(&vp->vref_count);
7178 	}
7179 	spin_unlock_irqrestore(&ha->vport_slock, flags);
7180 
7181 	/* Make sure for ISP 82XX IO DMA is complete */
7182 	if (IS_P3P_TYPE(ha)) {
7183 		qla82xx_chip_reset_cleanup(vha);
7184 		ql_log(ql_log_info, vha, 0x00b4,
7185 		       "Done chip reset cleanup.\n");
7186 
7187 		/* Done waiting for pending commands. Reset online flag */
7188 		vha->flags.online = 0;
7189 	}
7190 
7191 	/* Requeue all commands in outstanding command list. */
7192 	qla2x00_abort_all_cmds(vha, DID_RESET << 16);
7193 	/* memory barrier */
7194 	wmb();
7195 }
7196 
7197 /*
7198 *  qla2x00_abort_isp
7199 *      Resets ISP and aborts all outstanding commands.
7200 *
7201 * Input:
7202 *      ha           = adapter block pointer.
7203 *
7204 * Returns:
7205 *      0 = success
7206 */
7207 int
7208 qla2x00_abort_isp(scsi_qla_host_t *vha)
7209 {
7210 	int rval;
7211 	uint8_t        status = 0;
7212 	struct qla_hw_data *ha = vha->hw;
7213 	struct scsi_qla_host *vp, *tvp;
7214 	struct req_que *req = ha->req_q_map[0];
7215 	unsigned long flags;
7216 
7217 	if (vha->flags.online) {
7218 		qla2x00_abort_isp_cleanup(vha);
7219 
7220 		vha->dport_status |= DPORT_DIAG_CHIP_RESET_IN_PROGRESS;
7221 		vha->dport_status &= ~DPORT_DIAG_IN_PROGRESS;
7222 
7223 		if (vha->hw->flags.port_isolated)
7224 			return status;
7225 
7226 		if (qla2x00_isp_reg_stat(ha)) {
7227 			ql_log(ql_log_info, vha, 0x803f,
7228 			       "ISP Abort - ISP reg disconnect, exiting.\n");
7229 			return status;
7230 		}
7231 
7232 		if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
7233 			ha->flags.chip_reset_done = 1;
7234 			vha->flags.online = 1;
7235 			status = 0;
7236 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7237 			return status;
7238 		}
7239 
7240 		if (IS_QLA8031(ha)) {
7241 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
7242 			    "Clearing fcoe driver presence.\n");
7243 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
7244 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
7245 				    "Error while clearing DRV-Presence.\n");
7246 		}
7247 
7248 		if (unlikely(pci_channel_offline(ha->pdev) &&
7249 		    ha->flags.pci_channel_io_perm_failure)) {
7250 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7251 			status = 0;
7252 			return status;
7253 		}
7254 
7255 		switch (vha->qlini_mode) {
7256 		case QLA2XXX_INI_MODE_DISABLED:
7257 			if (!qla_tgt_mode_enabled(vha))
7258 				return 0;
7259 			break;
7260 		case QLA2XXX_INI_MODE_DUAL:
7261 			if (!qla_dual_mode_enabled(vha) &&
7262 			    !qla_ini_mode_enabled(vha))
7263 				return 0;
7264 			break;
7265 		case QLA2XXX_INI_MODE_ENABLED:
7266 		default:
7267 			break;
7268 		}
7269 
7270 		ha->isp_ops->get_flash_version(vha, req->ring);
7271 
7272 		if (qla2x00_isp_reg_stat(ha)) {
7273 			ql_log(ql_log_info, vha, 0x803f,
7274 			       "ISP Abort - ISP reg disconnect pre nvram config, exiting.\n");
7275 			return status;
7276 		}
7277 		ha->isp_ops->nvram_config(vha);
7278 
7279 		if (qla2x00_isp_reg_stat(ha)) {
7280 			ql_log(ql_log_info, vha, 0x803f,
7281 			       "ISP Abort - ISP reg disconnect post nvmram config, exiting.\n");
7282 			return status;
7283 		}
7284 		if (!qla2x00_restart_isp(vha)) {
7285 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7286 
7287 			if (!atomic_read(&vha->loop_down_timer)) {
7288 				/*
7289 				 * Issue marker command only when we are going
7290 				 * to start the I/O .
7291 				 */
7292 				vha->marker_needed = 1;
7293 			}
7294 
7295 			vha->flags.online = 1;
7296 
7297 			ha->isp_ops->enable_intrs(ha);
7298 
7299 			ha->isp_abort_cnt = 0;
7300 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7301 
7302 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
7303 				qla2x00_get_fw_version(vha);
7304 			if (ha->fce) {
7305 				ha->flags.fce_enabled = 1;
7306 				memset(ha->fce, 0,
7307 				    fce_calc_size(ha->fce_bufs));
7308 				rval = qla2x00_enable_fce_trace(vha,
7309 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
7310 				    &ha->fce_bufs);
7311 				if (rval) {
7312 					ql_log(ql_log_warn, vha, 0x8033,
7313 					    "Unable to reinitialize FCE "
7314 					    "(%d).\n", rval);
7315 					ha->flags.fce_enabled = 0;
7316 				}
7317 			}
7318 
7319 			if (ha->eft) {
7320 				memset(ha->eft, 0, EFT_SIZE);
7321 				rval = qla2x00_enable_eft_trace(vha,
7322 				    ha->eft_dma, EFT_NUM_BUFFERS);
7323 				if (rval) {
7324 					ql_log(ql_log_warn, vha, 0x8034,
7325 					    "Unable to reinitialize EFT "
7326 					    "(%d).\n", rval);
7327 				}
7328 			}
7329 		} else {	/* failed the ISP abort */
7330 			vha->flags.online = 1;
7331 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
7332 				if (ha->isp_abort_cnt == 0) {
7333 					ql_log(ql_log_fatal, vha, 0x8035,
7334 					    "ISP error recover failed - "
7335 					    "board disabled.\n");
7336 					/*
7337 					 * The next call disables the board
7338 					 * completely.
7339 					 */
7340 					qla2x00_abort_isp_cleanup(vha);
7341 					vha->flags.online = 0;
7342 					clear_bit(ISP_ABORT_RETRY,
7343 					    &vha->dpc_flags);
7344 					status = 0;
7345 				} else { /* schedule another ISP abort */
7346 					ha->isp_abort_cnt--;
7347 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
7348 					    "ISP abort - retry remaining %d.\n",
7349 					    ha->isp_abort_cnt);
7350 					status = 1;
7351 				}
7352 			} else {
7353 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
7354 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
7355 				    "ISP error recovery - retrying (%d) "
7356 				    "more times.\n", ha->isp_abort_cnt);
7357 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
7358 				status = 1;
7359 			}
7360 		}
7361 
7362 	}
7363 
7364 	if (vha->hw->flags.port_isolated) {
7365 		qla2x00_abort_isp_cleanup(vha);
7366 		return status;
7367 	}
7368 
7369 	if (!status) {
7370 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
7371 		qla2x00_configure_hba(vha);
7372 		spin_lock_irqsave(&ha->vport_slock, flags);
7373 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
7374 			if (vp->vp_idx) {
7375 				atomic_inc(&vp->vref_count);
7376 				spin_unlock_irqrestore(&ha->vport_slock, flags);
7377 
7378 				qla2x00_vp_abort_isp(vp);
7379 
7380 				spin_lock_irqsave(&ha->vport_slock, flags);
7381 				atomic_dec(&vp->vref_count);
7382 			}
7383 		}
7384 		spin_unlock_irqrestore(&ha->vport_slock, flags);
7385 
7386 		if (IS_QLA8031(ha)) {
7387 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
7388 			    "Setting back fcoe driver presence.\n");
7389 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
7390 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
7391 				    "Error while setting DRV-Presence.\n");
7392 		}
7393 	} else {
7394 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
7395 		       __func__);
7396 	}
7397 
7398 	return(status);
7399 }
7400 
7401 /*
7402 *  qla2x00_restart_isp
7403 *      restarts the ISP after a reset
7404 *
7405 * Input:
7406 *      ha = adapter block pointer.
7407 *
7408 * Returns:
7409 *      0 = success
7410 */
7411 static int
7412 qla2x00_restart_isp(scsi_qla_host_t *vha)
7413 {
7414 	int status;
7415 	struct qla_hw_data *ha = vha->hw;
7416 
7417 	/* If firmware needs to be loaded */
7418 	if (qla2x00_isp_firmware(vha)) {
7419 		vha->flags.online = 0;
7420 		status = ha->isp_ops->chip_diag(vha);
7421 		if (status)
7422 			return status;
7423 		status = qla2x00_setup_chip(vha);
7424 		if (status)
7425 			return status;
7426 	}
7427 
7428 	status = qla2x00_init_rings(vha);
7429 	if (status)
7430 		return status;
7431 
7432 	clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
7433 	ha->flags.chip_reset_done = 1;
7434 
7435 	/* Initialize the queues in use */
7436 	qla25xx_init_queues(ha);
7437 
7438 	status = qla2x00_fw_ready(vha);
7439 	if (status) {
7440 		/* if no cable then assume it's good */
7441 		return vha->device_flags & DFLG_NO_CABLE ? 0 : status;
7442 	}
7443 
7444 	/* Issue a marker after FW becomes ready. */
7445 	qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
7446 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
7447 
7448 	return 0;
7449 }
7450 
7451 static int
7452 qla25xx_init_queues(struct qla_hw_data *ha)
7453 {
7454 	struct rsp_que *rsp = NULL;
7455 	struct req_que *req = NULL;
7456 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
7457 	int ret = -1;
7458 	int i;
7459 
7460 	for (i = 1; i < ha->max_rsp_queues; i++) {
7461 		rsp = ha->rsp_q_map[i];
7462 		if (rsp && test_bit(i, ha->rsp_qid_map)) {
7463 			rsp->options &= ~BIT_0;
7464 			ret = qla25xx_init_rsp_que(base_vha, rsp);
7465 			if (ret != QLA_SUCCESS)
7466 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
7467 				    "%s Rsp que: %d init failed.\n",
7468 				    __func__, rsp->id);
7469 			else
7470 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
7471 				    "%s Rsp que: %d inited.\n",
7472 				    __func__, rsp->id);
7473 		}
7474 	}
7475 	for (i = 1; i < ha->max_req_queues; i++) {
7476 		req = ha->req_q_map[i];
7477 		if (req && test_bit(i, ha->req_qid_map)) {
7478 			/* Clear outstanding commands array. */
7479 			req->options &= ~BIT_0;
7480 			ret = qla25xx_init_req_que(base_vha, req);
7481 			if (ret != QLA_SUCCESS)
7482 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
7483 				    "%s Req que: %d init failed.\n",
7484 				    __func__, req->id);
7485 			else
7486 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
7487 				    "%s Req que: %d inited.\n",
7488 				    __func__, req->id);
7489 		}
7490 	}
7491 	return ret;
7492 }
7493 
7494 /*
7495 * qla2x00_reset_adapter
7496 *      Reset adapter.
7497 *
7498 * Input:
7499 *      ha = adapter block pointer.
7500 */
7501 int
7502 qla2x00_reset_adapter(scsi_qla_host_t *vha)
7503 {
7504 	unsigned long flags = 0;
7505 	struct qla_hw_data *ha = vha->hw;
7506 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
7507 
7508 	vha->flags.online = 0;
7509 	ha->isp_ops->disable_intrs(ha);
7510 
7511 	spin_lock_irqsave(&ha->hardware_lock, flags);
7512 	wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
7513 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7514 	wrt_reg_word(&reg->hccr, HCCR_RELEASE_RISC);
7515 	rd_reg_word(&reg->hccr);			/* PCI Posting. */
7516 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7517 
7518 	return QLA_SUCCESS;
7519 }
7520 
7521 int
7522 qla24xx_reset_adapter(scsi_qla_host_t *vha)
7523 {
7524 	unsigned long flags = 0;
7525 	struct qla_hw_data *ha = vha->hw;
7526 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
7527 
7528 	if (IS_P3P_TYPE(ha))
7529 		return QLA_SUCCESS;
7530 
7531 	vha->flags.online = 0;
7532 	ha->isp_ops->disable_intrs(ha);
7533 
7534 	spin_lock_irqsave(&ha->hardware_lock, flags);
7535 	wrt_reg_dword(&reg->hccr, HCCRX_SET_RISC_RESET);
7536 	rd_reg_dword(&reg->hccr);
7537 	wrt_reg_dword(&reg->hccr, HCCRX_REL_RISC_PAUSE);
7538 	rd_reg_dword(&reg->hccr);
7539 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
7540 
7541 	if (IS_NOPOLLING_TYPE(ha))
7542 		ha->isp_ops->enable_intrs(ha);
7543 
7544 	return QLA_SUCCESS;
7545 }
7546 
7547 /* On sparc systems, obtain port and node WWN from firmware
7548  * properties.
7549  */
7550 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
7551 	struct nvram_24xx *nv)
7552 {
7553 #ifdef CONFIG_SPARC
7554 	struct qla_hw_data *ha = vha->hw;
7555 	struct pci_dev *pdev = ha->pdev;
7556 	struct device_node *dp = pci_device_to_OF_node(pdev);
7557 	const u8 *val;
7558 	int len;
7559 
7560 	val = of_get_property(dp, "port-wwn", &len);
7561 	if (val && len >= WWN_SIZE)
7562 		memcpy(nv->port_name, val, WWN_SIZE);
7563 
7564 	val = of_get_property(dp, "node-wwn", &len);
7565 	if (val && len >= WWN_SIZE)
7566 		memcpy(nv->node_name, val, WWN_SIZE);
7567 #endif
7568 }
7569 
7570 int
7571 qla24xx_nvram_config(scsi_qla_host_t *vha)
7572 {
7573 	int   rval;
7574 	struct init_cb_24xx *icb;
7575 	struct nvram_24xx *nv;
7576 	__le32 *dptr;
7577 	uint8_t  *dptr1, *dptr2;
7578 	uint32_t chksum;
7579 	uint16_t cnt;
7580 	struct qla_hw_data *ha = vha->hw;
7581 
7582 	rval = QLA_SUCCESS;
7583 	icb = (struct init_cb_24xx *)ha->init_cb;
7584 	nv = ha->nvram;
7585 
7586 	/* Determine NVRAM starting address. */
7587 	if (ha->port_no == 0) {
7588 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
7589 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
7590 	} else {
7591 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
7592 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
7593 	}
7594 
7595 	ha->nvram_size = sizeof(*nv);
7596 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
7597 
7598 	/* Get VPD data into cache */
7599 	ha->vpd = ha->nvram + VPD_OFFSET;
7600 	ha->isp_ops->read_nvram(vha, ha->vpd,
7601 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
7602 
7603 	/* Get NVRAM data into cache and calculate checksum. */
7604 	dptr = (__force __le32 *)nv;
7605 	ha->isp_ops->read_nvram(vha, dptr, ha->nvram_base, ha->nvram_size);
7606 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
7607 		chksum += le32_to_cpu(*dptr);
7608 
7609 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
7610 	    "Contents of NVRAM\n");
7611 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
7612 	    nv, ha->nvram_size);
7613 
7614 	/* Bad NVRAM data, set defaults parameters. */
7615 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
7616 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
7617 		/* Reset NVRAM data. */
7618 		ql_log(ql_log_warn, vha, 0x006b,
7619 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
7620 		    chksum, nv->id, nv->nvram_version);
7621 		ql_dump_buffer(ql_dbg_init, vha, 0x006b, nv, sizeof(*nv));
7622 		ql_log(ql_log_warn, vha, 0x006c,
7623 		    "Falling back to functioning (yet invalid -- WWPN) "
7624 		    "defaults.\n");
7625 
7626 		/*
7627 		 * Set default initialization control block.
7628 		 */
7629 		memset(nv, 0, ha->nvram_size);
7630 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
7631 		nv->version = cpu_to_le16(ICB_VERSION);
7632 		nv->frame_payload_size = cpu_to_le16(2048);
7633 		nv->execution_throttle = cpu_to_le16(0xFFFF);
7634 		nv->exchange_count = cpu_to_le16(0);
7635 		nv->hard_address = cpu_to_le16(124);
7636 		nv->port_name[0] = 0x21;
7637 		nv->port_name[1] = 0x00 + ha->port_no + 1;
7638 		nv->port_name[2] = 0x00;
7639 		nv->port_name[3] = 0xe0;
7640 		nv->port_name[4] = 0x8b;
7641 		nv->port_name[5] = 0x1c;
7642 		nv->port_name[6] = 0x55;
7643 		nv->port_name[7] = 0x86;
7644 		nv->node_name[0] = 0x20;
7645 		nv->node_name[1] = 0x00;
7646 		nv->node_name[2] = 0x00;
7647 		nv->node_name[3] = 0xe0;
7648 		nv->node_name[4] = 0x8b;
7649 		nv->node_name[5] = 0x1c;
7650 		nv->node_name[6] = 0x55;
7651 		nv->node_name[7] = 0x86;
7652 		qla24xx_nvram_wwn_from_ofw(vha, nv);
7653 		nv->login_retry_count = cpu_to_le16(8);
7654 		nv->interrupt_delay_timer = cpu_to_le16(0);
7655 		nv->login_timeout = cpu_to_le16(0);
7656 		nv->firmware_options_1 =
7657 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
7658 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
7659 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
7660 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
7661 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
7662 		nv->efi_parameters = cpu_to_le32(0);
7663 		nv->reset_delay = 5;
7664 		nv->max_luns_per_target = cpu_to_le16(128);
7665 		nv->port_down_retry_count = cpu_to_le16(30);
7666 		nv->link_down_timeout = cpu_to_le16(30);
7667 
7668 		rval = 1;
7669 	}
7670 
7671 	if (qla_tgt_mode_enabled(vha)) {
7672 		/* Don't enable full login after initial LIP */
7673 		nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
7674 		/* Don't enable LIP full login for initiator */
7675 		nv->host_p &= cpu_to_le32(~BIT_10);
7676 	}
7677 
7678 	qlt_24xx_config_nvram_stage1(vha, nv);
7679 
7680 	/* Reset Initialization control block */
7681 	memset(icb, 0, ha->init_cb_size);
7682 
7683 	/* Copy 1st segment. */
7684 	dptr1 = (uint8_t *)icb;
7685 	dptr2 = (uint8_t *)&nv->version;
7686 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
7687 	while (cnt--)
7688 		*dptr1++ = *dptr2++;
7689 
7690 	icb->login_retry_count = nv->login_retry_count;
7691 	icb->link_down_on_nos = nv->link_down_on_nos;
7692 
7693 	/* Copy 2nd segment. */
7694 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
7695 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
7696 	cnt = (uint8_t *)&icb->reserved_3 -
7697 	    (uint8_t *)&icb->interrupt_delay_timer;
7698 	while (cnt--)
7699 		*dptr1++ = *dptr2++;
7700 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
7701 	/*
7702 	 * Setup driver NVRAM options.
7703 	 */
7704 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
7705 	    "QLA2462");
7706 
7707 	qlt_24xx_config_nvram_stage2(vha, icb);
7708 
7709 	if (nv->host_p & cpu_to_le32(BIT_15)) {
7710 		/* Use alternate WWN? */
7711 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
7712 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
7713 	}
7714 
7715 	/* Prepare nodename */
7716 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
7717 		/*
7718 		 * Firmware will apply the following mask if the nodename was
7719 		 * not provided.
7720 		 */
7721 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
7722 		icb->node_name[0] &= 0xF0;
7723 	}
7724 
7725 	/* Set host adapter parameters. */
7726 	ha->flags.disable_risc_code_load = 0;
7727 	ha->flags.enable_lip_reset = 0;
7728 	ha->flags.enable_lip_full_login =
7729 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
7730 	ha->flags.enable_target_reset =
7731 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
7732 	ha->flags.enable_led_scheme = 0;
7733 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
7734 
7735 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
7736 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
7737 
7738 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
7739 	    sizeof(ha->fw_seriallink_options24));
7740 
7741 	/* save HBA serial number */
7742 	ha->serial0 = icb->port_name[5];
7743 	ha->serial1 = icb->port_name[6];
7744 	ha->serial2 = icb->port_name[7];
7745 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
7746 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
7747 
7748 	icb->execution_throttle = cpu_to_le16(0xFFFF);
7749 
7750 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
7751 
7752 	/* Set minimum login_timeout to 4 seconds. */
7753 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
7754 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
7755 	if (le16_to_cpu(nv->login_timeout) < 4)
7756 		nv->login_timeout = cpu_to_le16(4);
7757 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
7758 
7759 	/* Set minimum RATOV to 100 tenths of a second. */
7760 	ha->r_a_tov = 100;
7761 
7762 	ha->loop_reset_delay = nv->reset_delay;
7763 
7764 	/* Link Down Timeout = 0:
7765 	 *
7766 	 * 	When Port Down timer expires we will start returning
7767 	 *	I/O's to OS with "DID_NO_CONNECT".
7768 	 *
7769 	 * Link Down Timeout != 0:
7770 	 *
7771 	 *	 The driver waits for the link to come up after link down
7772 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
7773 	 */
7774 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
7775 		ha->loop_down_abort_time =
7776 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
7777 	} else {
7778 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
7779 		ha->loop_down_abort_time =
7780 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
7781 	}
7782 
7783 	/* Need enough time to try and get the port back. */
7784 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
7785 	if (qlport_down_retry)
7786 		ha->port_down_retry_count = qlport_down_retry;
7787 
7788 	/* Set login_retry_count */
7789 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
7790 	if (ha->port_down_retry_count ==
7791 	    le16_to_cpu(nv->port_down_retry_count) &&
7792 	    ha->port_down_retry_count > 3)
7793 		ha->login_retry_count = ha->port_down_retry_count;
7794 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
7795 		ha->login_retry_count = ha->port_down_retry_count;
7796 	if (ql2xloginretrycount)
7797 		ha->login_retry_count = ql2xloginretrycount;
7798 
7799 	/* N2N: driver will initiate Login instead of FW */
7800 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
7801 
7802 	/* Enable ZIO. */
7803 	if (!vha->flags.init_done) {
7804 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
7805 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
7806 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
7807 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
7808 	}
7809 	icb->firmware_options_2 &= cpu_to_le32(
7810 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
7811 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
7812 		ha->zio_mode = QLA_ZIO_MODE_6;
7813 
7814 		ql_log(ql_log_info, vha, 0x006f,
7815 		    "ZIO mode %d enabled; timer delay (%d us).\n",
7816 		    ha->zio_mode, ha->zio_timer * 100);
7817 
7818 		icb->firmware_options_2 |= cpu_to_le32(
7819 		    (uint32_t)ha->zio_mode);
7820 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
7821 	}
7822 
7823 	if (rval) {
7824 		ql_log(ql_log_warn, vha, 0x0070,
7825 		    "NVRAM configuration failed.\n");
7826 	}
7827 	return (rval);
7828 }
7829 
7830 static void
7831 qla27xx_print_image(struct scsi_qla_host *vha, char *name,
7832     struct qla27xx_image_status *image_status)
7833 {
7834 	ql_dbg(ql_dbg_init, vha, 0x018b,
7835 	    "%s %s: mask=%#02x gen=%#04x ver=%u.%u map=%#01x sum=%#08x sig=%#08x\n",
7836 	    name, "status",
7837 	    image_status->image_status_mask,
7838 	    le16_to_cpu(image_status->generation),
7839 	    image_status->ver_major,
7840 	    image_status->ver_minor,
7841 	    image_status->bitmap,
7842 	    le32_to_cpu(image_status->checksum),
7843 	    le32_to_cpu(image_status->signature));
7844 }
7845 
7846 static bool
7847 qla28xx_check_aux_image_status_signature(
7848     struct qla27xx_image_status *image_status)
7849 {
7850 	ulong signature = le32_to_cpu(image_status->signature);
7851 
7852 	return signature != QLA28XX_AUX_IMG_STATUS_SIGN;
7853 }
7854 
7855 static bool
7856 qla27xx_check_image_status_signature(struct qla27xx_image_status *image_status)
7857 {
7858 	ulong signature = le32_to_cpu(image_status->signature);
7859 
7860 	return
7861 	    signature != QLA27XX_IMG_STATUS_SIGN &&
7862 	    signature != QLA28XX_IMG_STATUS_SIGN;
7863 }
7864 
7865 static ulong
7866 qla27xx_image_status_checksum(struct qla27xx_image_status *image_status)
7867 {
7868 	__le32 *p = (__force __le32 *)image_status;
7869 	uint n = sizeof(*image_status) / sizeof(*p);
7870 	uint32_t sum = 0;
7871 
7872 	for ( ; n--; p++)
7873 		sum += le32_to_cpup(p);
7874 
7875 	return sum;
7876 }
7877 
7878 static inline uint
7879 qla28xx_component_bitmask(struct qla27xx_image_status *aux, uint bitmask)
7880 {
7881 	return aux->bitmap & bitmask ?
7882 	    QLA27XX_SECONDARY_IMAGE : QLA27XX_PRIMARY_IMAGE;
7883 }
7884 
7885 static void
7886 qla28xx_component_status(
7887     struct active_regions *active_regions, struct qla27xx_image_status *aux)
7888 {
7889 	active_regions->aux.board_config =
7890 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_BOARD_CONFIG);
7891 
7892 	active_regions->aux.vpd_nvram =
7893 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_VPD_NVRAM);
7894 
7895 	active_regions->aux.npiv_config_0_1 =
7896 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_0_1);
7897 
7898 	active_regions->aux.npiv_config_2_3 =
7899 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
7900 
7901 	active_regions->aux.nvme_params =
7902 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NVME_PARAMS);
7903 }
7904 
7905 static int
7906 qla27xx_compare_image_generation(
7907     struct qla27xx_image_status *pri_image_status,
7908     struct qla27xx_image_status *sec_image_status)
7909 {
7910 	/* calculate generation delta as uint16 (this accounts for wrap) */
7911 	int16_t delta =
7912 	    le16_to_cpu(pri_image_status->generation) -
7913 	    le16_to_cpu(sec_image_status->generation);
7914 
7915 	ql_dbg(ql_dbg_init, NULL, 0x0180, "generation delta = %d\n", delta);
7916 
7917 	return delta;
7918 }
7919 
7920 void
7921 qla28xx_get_aux_images(
7922 	struct scsi_qla_host *vha, struct active_regions *active_regions)
7923 {
7924 	struct qla_hw_data *ha = vha->hw;
7925 	struct qla27xx_image_status pri_aux_image_status, sec_aux_image_status;
7926 	bool valid_pri_image = false, valid_sec_image = false;
7927 	bool active_pri_image = false, active_sec_image = false;
7928 
7929 	if (!ha->flt_region_aux_img_status_pri) {
7930 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary aux image not addressed\n");
7931 		goto check_sec_image;
7932 	}
7933 
7934 	qla24xx_read_flash_data(vha, (uint32_t *)&pri_aux_image_status,
7935 	    ha->flt_region_aux_img_status_pri,
7936 	    sizeof(pri_aux_image_status) >> 2);
7937 	qla27xx_print_image(vha, "Primary aux image", &pri_aux_image_status);
7938 
7939 	if (qla28xx_check_aux_image_status_signature(&pri_aux_image_status)) {
7940 		ql_dbg(ql_dbg_init, vha, 0x018b,
7941 		    "Primary aux image signature (%#x) not valid\n",
7942 		    le32_to_cpu(pri_aux_image_status.signature));
7943 		goto check_sec_image;
7944 	}
7945 
7946 	if (qla27xx_image_status_checksum(&pri_aux_image_status)) {
7947 		ql_dbg(ql_dbg_init, vha, 0x018c,
7948 		    "Primary aux image checksum failed\n");
7949 		goto check_sec_image;
7950 	}
7951 
7952 	valid_pri_image = true;
7953 
7954 	if (pri_aux_image_status.image_status_mask & 1) {
7955 		ql_dbg(ql_dbg_init, vha, 0x018d,
7956 		    "Primary aux image is active\n");
7957 		active_pri_image = true;
7958 	}
7959 
7960 check_sec_image:
7961 	if (!ha->flt_region_aux_img_status_sec) {
7962 		ql_dbg(ql_dbg_init, vha, 0x018a,
7963 		    "Secondary aux image not addressed\n");
7964 		goto check_valid_image;
7965 	}
7966 
7967 	qla24xx_read_flash_data(vha, (uint32_t *)&sec_aux_image_status,
7968 	    ha->flt_region_aux_img_status_sec,
7969 	    sizeof(sec_aux_image_status) >> 2);
7970 	qla27xx_print_image(vha, "Secondary aux image", &sec_aux_image_status);
7971 
7972 	if (qla28xx_check_aux_image_status_signature(&sec_aux_image_status)) {
7973 		ql_dbg(ql_dbg_init, vha, 0x018b,
7974 		    "Secondary aux image signature (%#x) not valid\n",
7975 		    le32_to_cpu(sec_aux_image_status.signature));
7976 		goto check_valid_image;
7977 	}
7978 
7979 	if (qla27xx_image_status_checksum(&sec_aux_image_status)) {
7980 		ql_dbg(ql_dbg_init, vha, 0x018c,
7981 		    "Secondary aux image checksum failed\n");
7982 		goto check_valid_image;
7983 	}
7984 
7985 	valid_sec_image = true;
7986 
7987 	if (sec_aux_image_status.image_status_mask & 1) {
7988 		ql_dbg(ql_dbg_init, vha, 0x018d,
7989 		    "Secondary aux image is active\n");
7990 		active_sec_image = true;
7991 	}
7992 
7993 check_valid_image:
7994 	if (valid_pri_image && active_pri_image &&
7995 	    valid_sec_image && active_sec_image) {
7996 		if (qla27xx_compare_image_generation(&pri_aux_image_status,
7997 		    &sec_aux_image_status) >= 0) {
7998 			qla28xx_component_status(active_regions,
7999 			    &pri_aux_image_status);
8000 		} else {
8001 			qla28xx_component_status(active_regions,
8002 			    &sec_aux_image_status);
8003 		}
8004 	} else if (valid_pri_image && active_pri_image) {
8005 		qla28xx_component_status(active_regions, &pri_aux_image_status);
8006 	} else if (valid_sec_image && active_sec_image) {
8007 		qla28xx_component_status(active_regions, &sec_aux_image_status);
8008 	}
8009 
8010 	ql_dbg(ql_dbg_init, vha, 0x018f,
8011 	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u, NVME=%u\n",
8012 	    active_regions->aux.board_config,
8013 	    active_regions->aux.vpd_nvram,
8014 	    active_regions->aux.npiv_config_0_1,
8015 	    active_regions->aux.npiv_config_2_3,
8016 	    active_regions->aux.nvme_params);
8017 }
8018 
8019 void
8020 qla27xx_get_active_image(struct scsi_qla_host *vha,
8021     struct active_regions *active_regions)
8022 {
8023 	struct qla_hw_data *ha = vha->hw;
8024 	struct qla27xx_image_status pri_image_status, sec_image_status;
8025 	bool valid_pri_image = false, valid_sec_image = false;
8026 	bool active_pri_image = false, active_sec_image = false;
8027 
8028 	if (!ha->flt_region_img_status_pri) {
8029 		ql_dbg(ql_dbg_init, vha, 0x018a, "Primary image not addressed\n");
8030 		goto check_sec_image;
8031 	}
8032 
8033 	if (qla24xx_read_flash_data(vha, (uint32_t *)&pri_image_status,
8034 	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
8035 	    QLA_SUCCESS) {
8036 		WARN_ON_ONCE(true);
8037 		goto check_sec_image;
8038 	}
8039 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
8040 
8041 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
8042 		ql_dbg(ql_dbg_init, vha, 0x018b,
8043 		    "Primary image signature (%#x) not valid\n",
8044 		    le32_to_cpu(pri_image_status.signature));
8045 		goto check_sec_image;
8046 	}
8047 
8048 	if (qla27xx_image_status_checksum(&pri_image_status)) {
8049 		ql_dbg(ql_dbg_init, vha, 0x018c,
8050 		    "Primary image checksum failed\n");
8051 		goto check_sec_image;
8052 	}
8053 
8054 	valid_pri_image = true;
8055 
8056 	if (pri_image_status.image_status_mask & 1) {
8057 		ql_dbg(ql_dbg_init, vha, 0x018d,
8058 		    "Primary image is active\n");
8059 		active_pri_image = true;
8060 	}
8061 
8062 check_sec_image:
8063 	if (!ha->flt_region_img_status_sec) {
8064 		ql_dbg(ql_dbg_init, vha, 0x018a, "Secondary image not addressed\n");
8065 		goto check_valid_image;
8066 	}
8067 
8068 	qla24xx_read_flash_data(vha, (uint32_t *)(&sec_image_status),
8069 	    ha->flt_region_img_status_sec, sizeof(sec_image_status) >> 2);
8070 	qla27xx_print_image(vha, "Secondary image", &sec_image_status);
8071 
8072 	if (qla27xx_check_image_status_signature(&sec_image_status)) {
8073 		ql_dbg(ql_dbg_init, vha, 0x018b,
8074 		    "Secondary image signature (%#x) not valid\n",
8075 		    le32_to_cpu(sec_image_status.signature));
8076 		goto check_valid_image;
8077 	}
8078 
8079 	if (qla27xx_image_status_checksum(&sec_image_status)) {
8080 		ql_dbg(ql_dbg_init, vha, 0x018c,
8081 		    "Secondary image checksum failed\n");
8082 		goto check_valid_image;
8083 	}
8084 
8085 	valid_sec_image = true;
8086 
8087 	if (sec_image_status.image_status_mask & 1) {
8088 		ql_dbg(ql_dbg_init, vha, 0x018d,
8089 		    "Secondary image is active\n");
8090 		active_sec_image = true;
8091 	}
8092 
8093 check_valid_image:
8094 	if (valid_pri_image && active_pri_image)
8095 		active_regions->global = QLA27XX_PRIMARY_IMAGE;
8096 
8097 	if (valid_sec_image && active_sec_image) {
8098 		if (!active_regions->global ||
8099 		    qla27xx_compare_image_generation(
8100 			&pri_image_status, &sec_image_status) < 0) {
8101 			active_regions->global = QLA27XX_SECONDARY_IMAGE;
8102 		}
8103 	}
8104 
8105 	ql_dbg(ql_dbg_init, vha, 0x018f, "active image %s (%u)\n",
8106 	    active_regions->global == QLA27XX_DEFAULT_IMAGE ?
8107 		"default (boot/fw)" :
8108 	    active_regions->global == QLA27XX_PRIMARY_IMAGE ?
8109 		"primary" :
8110 	    active_regions->global == QLA27XX_SECONDARY_IMAGE ?
8111 		"secondary" : "invalid",
8112 	    active_regions->global);
8113 }
8114 
8115 bool qla24xx_risc_firmware_invalid(uint32_t *dword)
8116 {
8117 	return
8118 	    !(dword[4] | dword[5] | dword[6] | dword[7]) ||
8119 	    !(~dword[4] | ~dword[5] | ~dword[6] | ~dword[7]);
8120 }
8121 
8122 static int
8123 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
8124     uint32_t faddr)
8125 {
8126 	int rval;
8127 	uint templates, segments, fragment;
8128 	ulong i;
8129 	uint j;
8130 	ulong dlen;
8131 	uint32_t *dcode;
8132 	uint32_t risc_addr, risc_size, risc_attr = 0;
8133 	struct qla_hw_data *ha = vha->hw;
8134 	struct req_que *req = ha->req_q_map[0];
8135 	struct fwdt *fwdt = ha->fwdt;
8136 
8137 	ql_dbg(ql_dbg_init, vha, 0x008b,
8138 	    "FW: Loading firmware from flash (%x).\n", faddr);
8139 
8140 	dcode = (uint32_t *)req->ring;
8141 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
8142 	if (qla24xx_risc_firmware_invalid(dcode)) {
8143 		ql_log(ql_log_fatal, vha, 0x008c,
8144 		    "Unable to verify the integrity of flash firmware "
8145 		    "image.\n");
8146 		ql_log(ql_log_fatal, vha, 0x008d,
8147 		    "Firmware data: %08x %08x %08x %08x.\n",
8148 		    dcode[0], dcode[1], dcode[2], dcode[3]);
8149 
8150 		return QLA_FUNCTION_FAILED;
8151 	}
8152 
8153 	dcode = (uint32_t *)req->ring;
8154 	*srisc_addr = 0;
8155 	segments = FA_RISC_CODE_SEGMENTS;
8156 	for (j = 0; j < segments; j++) {
8157 		ql_dbg(ql_dbg_init, vha, 0x008d,
8158 		    "-> Loading segment %u...\n", j);
8159 		qla24xx_read_flash_data(vha, dcode, faddr, 10);
8160 		risc_addr = be32_to_cpu((__force __be32)dcode[2]);
8161 		risc_size = be32_to_cpu((__force __be32)dcode[3]);
8162 		if (!*srisc_addr) {
8163 			*srisc_addr = risc_addr;
8164 			risc_attr = be32_to_cpu((__force __be32)dcode[9]);
8165 		}
8166 
8167 		dlen = ha->fw_transfer_size >> 2;
8168 		for (fragment = 0; risc_size; fragment++) {
8169 			if (dlen > risc_size)
8170 				dlen = risc_size;
8171 
8172 			ql_dbg(ql_dbg_init, vha, 0x008e,
8173 			    "-> Loading fragment %u: %#x <- %#x (%#lx dwords)...\n",
8174 			    fragment, risc_addr, faddr, dlen);
8175 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
8176 			for (i = 0; i < dlen; i++)
8177 				dcode[i] = swab32(dcode[i]);
8178 
8179 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8180 			if (rval) {
8181 				ql_log(ql_log_fatal, vha, 0x008f,
8182 				    "-> Failed load firmware fragment %u.\n",
8183 				    fragment);
8184 				return QLA_FUNCTION_FAILED;
8185 			}
8186 
8187 			faddr += dlen;
8188 			risc_addr += dlen;
8189 			risc_size -= dlen;
8190 		}
8191 	}
8192 
8193 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8194 		return QLA_SUCCESS;
8195 
8196 	templates = (risc_attr & BIT_9) ? 2 : 1;
8197 	ql_dbg(ql_dbg_init, vha, 0x0160, "-> templates = %u\n", templates);
8198 	for (j = 0; j < templates; j++, fwdt++) {
8199 		vfree(fwdt->template);
8200 		fwdt->template = NULL;
8201 		fwdt->length = 0;
8202 
8203 		dcode = (uint32_t *)req->ring;
8204 		qla24xx_read_flash_data(vha, dcode, faddr, 7);
8205 		risc_size = be32_to_cpu((__force __be32)dcode[2]);
8206 		ql_dbg(ql_dbg_init, vha, 0x0161,
8207 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8208 		    j, faddr, risc_size);
8209 		if (!risc_size || !~risc_size) {
8210 			ql_dbg(ql_dbg_init, vha, 0x0162,
8211 			    "-> fwdt%u failed to read array\n", j);
8212 			goto failed;
8213 		}
8214 
8215 		/* skip header and ignore checksum */
8216 		faddr += 7;
8217 		risc_size -= 8;
8218 
8219 		ql_dbg(ql_dbg_init, vha, 0x0163,
8220 		    "-> fwdt%u template allocate template %#x words...\n",
8221 		    j, risc_size);
8222 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8223 		if (!fwdt->template) {
8224 			ql_log(ql_log_warn, vha, 0x0164,
8225 			    "-> fwdt%u failed allocate template.\n", j);
8226 			goto failed;
8227 		}
8228 
8229 		dcode = fwdt->template;
8230 		qla24xx_read_flash_data(vha, dcode, faddr, risc_size);
8231 
8232 		if (!qla27xx_fwdt_template_valid(dcode)) {
8233 			ql_log(ql_log_warn, vha, 0x0165,
8234 			    "-> fwdt%u failed template validate\n", j);
8235 			goto failed;
8236 		}
8237 
8238 		dlen = qla27xx_fwdt_template_size(dcode);
8239 		ql_dbg(ql_dbg_init, vha, 0x0166,
8240 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8241 		    j, dlen, dlen / sizeof(*dcode));
8242 		if (dlen > risc_size * sizeof(*dcode)) {
8243 			ql_log(ql_log_warn, vha, 0x0167,
8244 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8245 			    j, dlen - risc_size * sizeof(*dcode));
8246 			goto failed;
8247 		}
8248 
8249 		fwdt->length = dlen;
8250 		ql_dbg(ql_dbg_init, vha, 0x0168,
8251 		    "-> fwdt%u loaded template ok\n", j);
8252 
8253 		faddr += risc_size + 1;
8254 	}
8255 
8256 	return QLA_SUCCESS;
8257 
8258 failed:
8259 	vfree(fwdt->template);
8260 	fwdt->template = NULL;
8261 	fwdt->length = 0;
8262 
8263 	return QLA_SUCCESS;
8264 }
8265 
8266 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
8267 
8268 int
8269 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8270 {
8271 	int	rval;
8272 	int	i, fragment;
8273 	uint16_t *wcode;
8274 	__be16	 *fwcode;
8275 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
8276 	struct fw_blob *blob;
8277 	struct qla_hw_data *ha = vha->hw;
8278 	struct req_que *req = ha->req_q_map[0];
8279 
8280 	/* Load firmware blob. */
8281 	blob = qla2x00_request_firmware(vha);
8282 	if (!blob) {
8283 		ql_log(ql_log_info, vha, 0x0083,
8284 		    "Firmware image unavailable.\n");
8285 		ql_log(ql_log_info, vha, 0x0084,
8286 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
8287 		return QLA_FUNCTION_FAILED;
8288 	}
8289 
8290 	rval = QLA_SUCCESS;
8291 
8292 	wcode = (uint16_t *)req->ring;
8293 	*srisc_addr = 0;
8294 	fwcode = (__force __be16 *)blob->fw->data;
8295 	fwclen = 0;
8296 
8297 	/* Validate firmware image by checking version. */
8298 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
8299 		ql_log(ql_log_fatal, vha, 0x0085,
8300 		    "Unable to verify integrity of firmware image (%zd).\n",
8301 		    blob->fw->size);
8302 		goto fail_fw_integrity;
8303 	}
8304 	for (i = 0; i < 4; i++)
8305 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
8306 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
8307 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
8308 		wcode[2] == 0 && wcode[3] == 0)) {
8309 		ql_log(ql_log_fatal, vha, 0x0086,
8310 		    "Unable to verify integrity of firmware image.\n");
8311 		ql_log(ql_log_fatal, vha, 0x0087,
8312 		    "Firmware data: %04x %04x %04x %04x.\n",
8313 		    wcode[0], wcode[1], wcode[2], wcode[3]);
8314 		goto fail_fw_integrity;
8315 	}
8316 
8317 	seg = blob->segs;
8318 	while (*seg && rval == QLA_SUCCESS) {
8319 		risc_addr = *seg;
8320 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
8321 		risc_size = be16_to_cpu(fwcode[3]);
8322 
8323 		/* Validate firmware image size. */
8324 		fwclen += risc_size * sizeof(uint16_t);
8325 		if (blob->fw->size < fwclen) {
8326 			ql_log(ql_log_fatal, vha, 0x0088,
8327 			    "Unable to verify integrity of firmware image "
8328 			    "(%zd).\n", blob->fw->size);
8329 			goto fail_fw_integrity;
8330 		}
8331 
8332 		fragment = 0;
8333 		while (risc_size > 0 && rval == QLA_SUCCESS) {
8334 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
8335 			if (wlen > risc_size)
8336 				wlen = risc_size;
8337 			ql_dbg(ql_dbg_init, vha, 0x0089,
8338 			    "Loading risc segment@ risc addr %x number of "
8339 			    "words 0x%x.\n", risc_addr, wlen);
8340 
8341 			for (i = 0; i < wlen; i++)
8342 				wcode[i] = swab16((__force u32)fwcode[i]);
8343 
8344 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
8345 			    wlen);
8346 			if (rval) {
8347 				ql_log(ql_log_fatal, vha, 0x008a,
8348 				    "Failed to load segment %d of firmware.\n",
8349 				    fragment);
8350 				break;
8351 			}
8352 
8353 			fwcode += wlen;
8354 			risc_addr += wlen;
8355 			risc_size -= wlen;
8356 			fragment++;
8357 		}
8358 
8359 		/* Next segment. */
8360 		seg++;
8361 	}
8362 	return rval;
8363 
8364 fail_fw_integrity:
8365 	return QLA_FUNCTION_FAILED;
8366 }
8367 
8368 static int
8369 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8370 {
8371 	int	rval;
8372 	uint templates, segments, fragment;
8373 	uint32_t *dcode;
8374 	ulong dlen;
8375 	uint32_t risc_addr, risc_size, risc_attr = 0;
8376 	ulong i;
8377 	uint j;
8378 	struct fw_blob *blob;
8379 	__be32 *fwcode;
8380 	struct qla_hw_data *ha = vha->hw;
8381 	struct req_que *req = ha->req_q_map[0];
8382 	struct fwdt *fwdt = ha->fwdt;
8383 
8384 	ql_dbg(ql_dbg_init, vha, 0x0090,
8385 	    "-> FW: Loading via request-firmware.\n");
8386 
8387 	blob = qla2x00_request_firmware(vha);
8388 	if (!blob) {
8389 		ql_log(ql_log_warn, vha, 0x0092,
8390 		    "-> Firmware file not found.\n");
8391 
8392 		return QLA_FUNCTION_FAILED;
8393 	}
8394 
8395 	fwcode = (__force __be32 *)blob->fw->data;
8396 	dcode = (__force uint32_t *)fwcode;
8397 	if (qla24xx_risc_firmware_invalid(dcode)) {
8398 		ql_log(ql_log_fatal, vha, 0x0093,
8399 		    "Unable to verify integrity of firmware image (%zd).\n",
8400 		    blob->fw->size);
8401 		ql_log(ql_log_fatal, vha, 0x0095,
8402 		    "Firmware data: %08x %08x %08x %08x.\n",
8403 		    dcode[0], dcode[1], dcode[2], dcode[3]);
8404 		return QLA_FUNCTION_FAILED;
8405 	}
8406 
8407 	dcode = (uint32_t *)req->ring;
8408 	*srisc_addr = 0;
8409 	segments = FA_RISC_CODE_SEGMENTS;
8410 	for (j = 0; j < segments; j++) {
8411 		ql_dbg(ql_dbg_init, vha, 0x0096,
8412 		    "-> Loading segment %u...\n", j);
8413 		risc_addr = be32_to_cpu(fwcode[2]);
8414 		risc_size = be32_to_cpu(fwcode[3]);
8415 
8416 		if (!*srisc_addr) {
8417 			*srisc_addr = risc_addr;
8418 			risc_attr = be32_to_cpu(fwcode[9]);
8419 		}
8420 
8421 		dlen = ha->fw_transfer_size >> 2;
8422 		for (fragment = 0; risc_size; fragment++) {
8423 			if (dlen > risc_size)
8424 				dlen = risc_size;
8425 
8426 			ql_dbg(ql_dbg_init, vha, 0x0097,
8427 			    "-> Loading fragment %u: %#x <- %#x (%#lx words)...\n",
8428 			    fragment, risc_addr,
8429 			    (uint32_t)(fwcode - (typeof(fwcode))blob->fw->data),
8430 			    dlen);
8431 
8432 			for (i = 0; i < dlen; i++)
8433 				dcode[i] = swab32((__force u32)fwcode[i]);
8434 
8435 			rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen);
8436 			if (rval) {
8437 				ql_log(ql_log_fatal, vha, 0x0098,
8438 				    "-> Failed load firmware fragment %u.\n",
8439 				    fragment);
8440 				return QLA_FUNCTION_FAILED;
8441 			}
8442 
8443 			fwcode += dlen;
8444 			risc_addr += dlen;
8445 			risc_size -= dlen;
8446 		}
8447 	}
8448 
8449 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8450 		return QLA_SUCCESS;
8451 
8452 	templates = (risc_attr & BIT_9) ? 2 : 1;
8453 	ql_dbg(ql_dbg_init, vha, 0x0170, "-> templates = %u\n", templates);
8454 	for (j = 0; j < templates; j++, fwdt++) {
8455 		vfree(fwdt->template);
8456 		fwdt->template = NULL;
8457 		fwdt->length = 0;
8458 
8459 		risc_size = be32_to_cpu(fwcode[2]);
8460 		ql_dbg(ql_dbg_init, vha, 0x0171,
8461 		    "-> fwdt%u template array at %#x (%#x dwords)\n",
8462 		    j, (uint32_t)((void *)fwcode - (void *)blob->fw->data),
8463 		    risc_size);
8464 		if (!risc_size || !~risc_size) {
8465 			ql_dbg(ql_dbg_init, vha, 0x0172,
8466 			    "-> fwdt%u failed to read array\n", j);
8467 			goto failed;
8468 		}
8469 
8470 		/* skip header and ignore checksum */
8471 		fwcode += 7;
8472 		risc_size -= 8;
8473 
8474 		ql_dbg(ql_dbg_init, vha, 0x0173,
8475 		    "-> fwdt%u template allocate template %#x words...\n",
8476 		    j, risc_size);
8477 		fwdt->template = vmalloc(risc_size * sizeof(*dcode));
8478 		if (!fwdt->template) {
8479 			ql_log(ql_log_warn, vha, 0x0174,
8480 			    "-> fwdt%u failed allocate template.\n", j);
8481 			goto failed;
8482 		}
8483 
8484 		dcode = fwdt->template;
8485 		for (i = 0; i < risc_size; i++)
8486 			dcode[i] = (__force u32)fwcode[i];
8487 
8488 		if (!qla27xx_fwdt_template_valid(dcode)) {
8489 			ql_log(ql_log_warn, vha, 0x0175,
8490 			    "-> fwdt%u failed template validate\n", j);
8491 			goto failed;
8492 		}
8493 
8494 		dlen = qla27xx_fwdt_template_size(dcode);
8495 		ql_dbg(ql_dbg_init, vha, 0x0176,
8496 		    "-> fwdt%u template size %#lx bytes (%#lx words)\n",
8497 		    j, dlen, dlen / sizeof(*dcode));
8498 		if (dlen > risc_size * sizeof(*dcode)) {
8499 			ql_log(ql_log_warn, vha, 0x0177,
8500 			    "-> fwdt%u template exceeds array (%-lu bytes)\n",
8501 			    j, dlen - risc_size * sizeof(*dcode));
8502 			goto failed;
8503 		}
8504 
8505 		fwdt->length = dlen;
8506 		ql_dbg(ql_dbg_init, vha, 0x0178,
8507 		    "-> fwdt%u loaded template ok\n", j);
8508 
8509 		fwcode += risc_size + 1;
8510 	}
8511 
8512 	return QLA_SUCCESS;
8513 
8514 failed:
8515 	vfree(fwdt->template);
8516 	fwdt->template = NULL;
8517 	fwdt->length = 0;
8518 
8519 	return QLA_SUCCESS;
8520 }
8521 
8522 int
8523 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8524 {
8525 	int rval;
8526 
8527 	if (ql2xfwloadbin == 1)
8528 		return qla81xx_load_risc(vha, srisc_addr);
8529 
8530 	/*
8531 	 * FW Load priority:
8532 	 * 1) Firmware via request-firmware interface (.bin file).
8533 	 * 2) Firmware residing in flash.
8534 	 */
8535 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8536 	if (rval == QLA_SUCCESS)
8537 		return rval;
8538 
8539 	return qla24xx_load_risc_flash(vha, srisc_addr,
8540 	    vha->hw->flt_region_fw);
8541 }
8542 
8543 int
8544 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
8545 {
8546 	int rval;
8547 	struct qla_hw_data *ha = vha->hw;
8548 	struct active_regions active_regions = { };
8549 
8550 	if (ql2xfwloadbin == 2)
8551 		goto try_blob_fw;
8552 
8553 	/* FW Load priority:
8554 	 * 1) Firmware residing in flash.
8555 	 * 2) Firmware via request-firmware interface (.bin file).
8556 	 * 3) Golden-Firmware residing in flash -- (limited operation).
8557 	 */
8558 
8559 	if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
8560 		goto try_primary_fw;
8561 
8562 	qla27xx_get_active_image(vha, &active_regions);
8563 
8564 	if (active_regions.global != QLA27XX_SECONDARY_IMAGE)
8565 		goto try_primary_fw;
8566 
8567 	ql_dbg(ql_dbg_init, vha, 0x008b,
8568 	    "Loading secondary firmware image.\n");
8569 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw_sec);
8570 	if (!rval)
8571 		return rval;
8572 
8573 try_primary_fw:
8574 	ql_dbg(ql_dbg_init, vha, 0x008b,
8575 	    "Loading primary firmware image.\n");
8576 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
8577 	if (!rval)
8578 		return rval;
8579 
8580 try_blob_fw:
8581 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
8582 	if (!rval || !ha->flt_region_gold_fw)
8583 		return rval;
8584 
8585 	ql_log(ql_log_info, vha, 0x0099,
8586 	    "Attempting to fallback to golden firmware.\n");
8587 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
8588 	if (rval)
8589 		return rval;
8590 
8591 	ql_log(ql_log_info, vha, 0x009a, "Need firmware flash update.\n");
8592 	ha->flags.running_gold_fw = 1;
8593 	return rval;
8594 }
8595 
8596 void
8597 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
8598 {
8599 	int ret, retries;
8600 	struct qla_hw_data *ha = vha->hw;
8601 
8602 	if (ha->flags.pci_channel_io_perm_failure)
8603 		return;
8604 	if (!IS_FWI2_CAPABLE(ha))
8605 		return;
8606 	if (!ha->fw_major_version)
8607 		return;
8608 	if (!ha->flags.fw_started)
8609 		return;
8610 
8611 	ret = qla2x00_stop_firmware(vha);
8612 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
8613 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
8614 		ha->isp_ops->reset_chip(vha);
8615 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
8616 			continue;
8617 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
8618 			continue;
8619 		ql_log(ql_log_info, vha, 0x8015,
8620 		    "Attempting retry of stop-firmware command.\n");
8621 		ret = qla2x00_stop_firmware(vha);
8622 	}
8623 
8624 	QLA_FW_STOPPED(ha);
8625 	ha->flags.fw_init_done = 0;
8626 }
8627 
8628 int
8629 qla24xx_configure_vhba(scsi_qla_host_t *vha)
8630 {
8631 	int rval = QLA_SUCCESS;
8632 	int rval2;
8633 	uint16_t mb[MAILBOX_REGISTER_COUNT];
8634 	struct qla_hw_data *ha = vha->hw;
8635 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
8636 
8637 	if (!vha->vp_idx)
8638 		return -EINVAL;
8639 
8640 	rval = qla2x00_fw_ready(base_vha);
8641 
8642 	if (rval == QLA_SUCCESS) {
8643 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
8644 		qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
8645 	}
8646 
8647 	vha->flags.management_server_logged_in = 0;
8648 
8649 	/* Login to SNS first */
8650 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
8651 	    BIT_1);
8652 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
8653 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
8654 			ql_dbg(ql_dbg_init, vha, 0x0120,
8655 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
8656 			    NPH_SNS, rval2);
8657 		else
8658 			ql_dbg(ql_dbg_init, vha, 0x0103,
8659 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
8660 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
8661 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
8662 		return (QLA_FUNCTION_FAILED);
8663 	}
8664 
8665 	atomic_set(&vha->loop_down_timer, 0);
8666 	atomic_set(&vha->loop_state, LOOP_UP);
8667 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
8668 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
8669 	rval = qla2x00_loop_resync(base_vha);
8670 
8671 	return rval;
8672 }
8673 
8674 /* 84XX Support **************************************************************/
8675 
8676 static LIST_HEAD(qla_cs84xx_list);
8677 static DEFINE_MUTEX(qla_cs84xx_mutex);
8678 
8679 static struct qla_chip_state_84xx *
8680 qla84xx_get_chip(struct scsi_qla_host *vha)
8681 {
8682 	struct qla_chip_state_84xx *cs84xx;
8683 	struct qla_hw_data *ha = vha->hw;
8684 
8685 	mutex_lock(&qla_cs84xx_mutex);
8686 
8687 	/* Find any shared 84xx chip. */
8688 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
8689 		if (cs84xx->bus == ha->pdev->bus) {
8690 			kref_get(&cs84xx->kref);
8691 			goto done;
8692 		}
8693 	}
8694 
8695 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
8696 	if (!cs84xx)
8697 		goto done;
8698 
8699 	kref_init(&cs84xx->kref);
8700 	spin_lock_init(&cs84xx->access_lock);
8701 	mutex_init(&cs84xx->fw_update_mutex);
8702 	cs84xx->bus = ha->pdev->bus;
8703 
8704 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
8705 done:
8706 	mutex_unlock(&qla_cs84xx_mutex);
8707 	return cs84xx;
8708 }
8709 
8710 static void
8711 __qla84xx_chip_release(struct kref *kref)
8712 {
8713 	struct qla_chip_state_84xx *cs84xx =
8714 	    container_of(kref, struct qla_chip_state_84xx, kref);
8715 
8716 	mutex_lock(&qla_cs84xx_mutex);
8717 	list_del(&cs84xx->list);
8718 	mutex_unlock(&qla_cs84xx_mutex);
8719 	kfree(cs84xx);
8720 }
8721 
8722 void
8723 qla84xx_put_chip(struct scsi_qla_host *vha)
8724 {
8725 	struct qla_hw_data *ha = vha->hw;
8726 
8727 	if (ha->cs84xx)
8728 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
8729 }
8730 
8731 static int
8732 qla84xx_init_chip(scsi_qla_host_t *vha)
8733 {
8734 	int rval;
8735 	uint16_t status[2];
8736 	struct qla_hw_data *ha = vha->hw;
8737 
8738 	mutex_lock(&ha->cs84xx->fw_update_mutex);
8739 
8740 	rval = qla84xx_verify_chip(vha, status);
8741 
8742 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
8743 
8744 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED :
8745 	    QLA_SUCCESS;
8746 }
8747 
8748 /* 81XX Support **************************************************************/
8749 
8750 int
8751 qla81xx_nvram_config(scsi_qla_host_t *vha)
8752 {
8753 	int   rval;
8754 	struct init_cb_81xx *icb;
8755 	struct nvram_81xx *nv;
8756 	__le32 *dptr;
8757 	uint8_t  *dptr1, *dptr2;
8758 	uint32_t chksum;
8759 	uint16_t cnt;
8760 	struct qla_hw_data *ha = vha->hw;
8761 	uint32_t faddr;
8762 	struct active_regions active_regions = { };
8763 
8764 	rval = QLA_SUCCESS;
8765 	icb = (struct init_cb_81xx *)ha->init_cb;
8766 	nv = ha->nvram;
8767 
8768 	/* Determine NVRAM starting address. */
8769 	ha->nvram_size = sizeof(*nv);
8770 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
8771 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
8772 		ha->vpd_size = FA_VPD_SIZE_82XX;
8773 
8774 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha))
8775 		qla28xx_get_aux_images(vha, &active_regions);
8776 
8777 	/* Get VPD data into cache */
8778 	ha->vpd = ha->nvram + VPD_OFFSET;
8779 
8780 	faddr = ha->flt_region_vpd;
8781 	if (IS_QLA28XX(ha)) {
8782 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8783 			faddr = ha->flt_region_vpd_sec;
8784 		ql_dbg(ql_dbg_init, vha, 0x0110,
8785 		    "Loading %s nvram image.\n",
8786 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8787 		    "primary" : "secondary");
8788 	}
8789 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
8790 
8791 	/* Get NVRAM data into cache and calculate checksum. */
8792 	faddr = ha->flt_region_nvram;
8793 	if (IS_QLA28XX(ha)) {
8794 		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
8795 			faddr = ha->flt_region_nvram_sec;
8796 	}
8797 	ql_dbg(ql_dbg_init, vha, 0x0110,
8798 	    "Loading %s nvram image.\n",
8799 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
8800 	    "primary" : "secondary");
8801 	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
8802 
8803 	dptr = (__force __le32 *)nv;
8804 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)
8805 		chksum += le32_to_cpu(*dptr);
8806 
8807 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
8808 	    "Contents of NVRAM:\n");
8809 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
8810 	    nv, ha->nvram_size);
8811 
8812 	/* Bad NVRAM data, set defaults parameters. */
8813 	if (chksum || memcmp("ISP ", nv->id, sizeof(nv->id)) ||
8814 	    le16_to_cpu(nv->nvram_version) < ICB_VERSION) {
8815 		/* Reset NVRAM data. */
8816 		ql_log(ql_log_info, vha, 0x0073,
8817 		    "Inconsistent NVRAM checksum=%#x id=%.4s version=%#x.\n",
8818 		    chksum, nv->id, le16_to_cpu(nv->nvram_version));
8819 		ql_dump_buffer(ql_dbg_init, vha, 0x0073, nv, sizeof(*nv));
8820 		ql_log(ql_log_info, vha, 0x0074,
8821 		    "Falling back to functioning (yet invalid -- WWPN) "
8822 		    "defaults.\n");
8823 
8824 		/*
8825 		 * Set default initialization control block.
8826 		 */
8827 		memset(nv, 0, ha->nvram_size);
8828 		nv->nvram_version = cpu_to_le16(ICB_VERSION);
8829 		nv->version = cpu_to_le16(ICB_VERSION);
8830 		nv->frame_payload_size = cpu_to_le16(2048);
8831 		nv->execution_throttle = cpu_to_le16(0xFFFF);
8832 		nv->exchange_count = cpu_to_le16(0);
8833 		nv->port_name[0] = 0x21;
8834 		nv->port_name[1] = 0x00 + ha->port_no + 1;
8835 		nv->port_name[2] = 0x00;
8836 		nv->port_name[3] = 0xe0;
8837 		nv->port_name[4] = 0x8b;
8838 		nv->port_name[5] = 0x1c;
8839 		nv->port_name[6] = 0x55;
8840 		nv->port_name[7] = 0x86;
8841 		nv->node_name[0] = 0x20;
8842 		nv->node_name[1] = 0x00;
8843 		nv->node_name[2] = 0x00;
8844 		nv->node_name[3] = 0xe0;
8845 		nv->node_name[4] = 0x8b;
8846 		nv->node_name[5] = 0x1c;
8847 		nv->node_name[6] = 0x55;
8848 		nv->node_name[7] = 0x86;
8849 		nv->login_retry_count = cpu_to_le16(8);
8850 		nv->interrupt_delay_timer = cpu_to_le16(0);
8851 		nv->login_timeout = cpu_to_le16(0);
8852 		nv->firmware_options_1 =
8853 		    cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
8854 		nv->firmware_options_2 = cpu_to_le32(2 << 4);
8855 		nv->firmware_options_2 |= cpu_to_le32(BIT_12);
8856 		nv->firmware_options_3 = cpu_to_le32(2 << 13);
8857 		nv->host_p = cpu_to_le32(BIT_11|BIT_10);
8858 		nv->efi_parameters = cpu_to_le32(0);
8859 		nv->reset_delay = 5;
8860 		nv->max_luns_per_target = cpu_to_le16(128);
8861 		nv->port_down_retry_count = cpu_to_le16(30);
8862 		nv->link_down_timeout = cpu_to_le16(180);
8863 		nv->enode_mac[0] = 0x00;
8864 		nv->enode_mac[1] = 0xC0;
8865 		nv->enode_mac[2] = 0xDD;
8866 		nv->enode_mac[3] = 0x04;
8867 		nv->enode_mac[4] = 0x05;
8868 		nv->enode_mac[5] = 0x06 + ha->port_no + 1;
8869 
8870 		rval = 1;
8871 	}
8872 
8873 	if (IS_T10_PI_CAPABLE(ha))
8874 		nv->frame_payload_size &= cpu_to_le16(~7);
8875 
8876 	qlt_81xx_config_nvram_stage1(vha, nv);
8877 
8878 	/* Reset Initialization control block */
8879 	memset(icb, 0, ha->init_cb_size);
8880 
8881 	/* Copy 1st segment. */
8882 	dptr1 = (uint8_t *)icb;
8883 	dptr2 = (uint8_t *)&nv->version;
8884 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
8885 	while (cnt--)
8886 		*dptr1++ = *dptr2++;
8887 
8888 	icb->login_retry_count = nv->login_retry_count;
8889 
8890 	/* Copy 2nd segment. */
8891 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
8892 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
8893 	cnt = (uint8_t *)&icb->reserved_5 -
8894 	    (uint8_t *)&icb->interrupt_delay_timer;
8895 	while (cnt--)
8896 		*dptr1++ = *dptr2++;
8897 
8898 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
8899 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
8900 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
8901 		icb->enode_mac[0] = 0x00;
8902 		icb->enode_mac[1] = 0xC0;
8903 		icb->enode_mac[2] = 0xDD;
8904 		icb->enode_mac[3] = 0x04;
8905 		icb->enode_mac[4] = 0x05;
8906 		icb->enode_mac[5] = 0x06 + ha->port_no + 1;
8907 	}
8908 
8909 	/* Use extended-initialization control block. */
8910 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
8911 	ha->frame_payload_size = le16_to_cpu(icb->frame_payload_size);
8912 	/*
8913 	 * Setup driver NVRAM options.
8914 	 */
8915 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
8916 	    "QLE8XXX");
8917 
8918 	qlt_81xx_config_nvram_stage2(vha, icb);
8919 
8920 	/* Use alternate WWN? */
8921 	if (nv->host_p & cpu_to_le32(BIT_15)) {
8922 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
8923 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
8924 	}
8925 
8926 	/* Prepare nodename */
8927 	if ((icb->firmware_options_1 & cpu_to_le32(BIT_14)) == 0) {
8928 		/*
8929 		 * Firmware will apply the following mask if the nodename was
8930 		 * not provided.
8931 		 */
8932 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
8933 		icb->node_name[0] &= 0xF0;
8934 	}
8935 
8936 	if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) {
8937 		if ((nv->enhanced_features & BIT_7) == 0)
8938 			ha->flags.scm_supported_a = 1;
8939 	}
8940 
8941 	/* Set host adapter parameters. */
8942 	ha->flags.disable_risc_code_load = 0;
8943 	ha->flags.enable_lip_reset = 0;
8944 	ha->flags.enable_lip_full_login =
8945 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1 : 0;
8946 	ha->flags.enable_target_reset =
8947 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1 : 0;
8948 	ha->flags.enable_led_scheme = 0;
8949 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1 : 0;
8950 
8951 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
8952 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
8953 
8954 	/* save HBA serial number */
8955 	ha->serial0 = icb->port_name[5];
8956 	ha->serial1 = icb->port_name[6];
8957 	ha->serial2 = icb->port_name[7];
8958 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
8959 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
8960 
8961 	icb->execution_throttle = cpu_to_le16(0xFFFF);
8962 
8963 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
8964 
8965 	/* Set minimum login_timeout to 4 seconds. */
8966 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
8967 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
8968 	if (le16_to_cpu(nv->login_timeout) < 4)
8969 		nv->login_timeout = cpu_to_le16(4);
8970 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
8971 
8972 	/* Set minimum RATOV to 100 tenths of a second. */
8973 	ha->r_a_tov = 100;
8974 
8975 	ha->loop_reset_delay = nv->reset_delay;
8976 
8977 	/* Link Down Timeout = 0:
8978 	 *
8979 	 *	When Port Down timer expires we will start returning
8980 	 *	I/O's to OS with "DID_NO_CONNECT".
8981 	 *
8982 	 * Link Down Timeout != 0:
8983 	 *
8984 	 *	 The driver waits for the link to come up after link down
8985 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
8986 	 */
8987 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
8988 		ha->loop_down_abort_time =
8989 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
8990 	} else {
8991 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
8992 		ha->loop_down_abort_time =
8993 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
8994 	}
8995 
8996 	/* Need enough time to try and get the port back. */
8997 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
8998 	if (qlport_down_retry)
8999 		ha->port_down_retry_count = qlport_down_retry;
9000 
9001 	/* Set login_retry_count */
9002 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
9003 	if (ha->port_down_retry_count ==
9004 	    le16_to_cpu(nv->port_down_retry_count) &&
9005 	    ha->port_down_retry_count > 3)
9006 		ha->login_retry_count = ha->port_down_retry_count;
9007 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
9008 		ha->login_retry_count = ha->port_down_retry_count;
9009 	if (ql2xloginretrycount)
9010 		ha->login_retry_count = ql2xloginretrycount;
9011 
9012 	/* if not running MSI-X we need handshaking on interrupts */
9013 	if (!vha->hw->flags.msix_enabled &&
9014 	    (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)))
9015 		icb->firmware_options_2 |= cpu_to_le32(BIT_22);
9016 
9017 	/* Enable ZIO. */
9018 	if (!vha->flags.init_done) {
9019 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
9020 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
9021 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
9022 		    le16_to_cpu(icb->interrupt_delay_timer) : 2;
9023 	}
9024 	icb->firmware_options_2 &= cpu_to_le32(
9025 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
9026 	vha->flags.process_response_queue = 0;
9027 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
9028 		ha->zio_mode = QLA_ZIO_MODE_6;
9029 
9030 		ql_log(ql_log_info, vha, 0x0075,
9031 		    "ZIO mode %d enabled; timer delay (%d us).\n",
9032 		    ha->zio_mode,
9033 		    ha->zio_timer * 100);
9034 
9035 		icb->firmware_options_2 |= cpu_to_le32(
9036 		    (uint32_t)ha->zio_mode);
9037 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
9038 		vha->flags.process_response_queue = 1;
9039 	}
9040 
9041 	 /* enable RIDA Format2 */
9042 	icb->firmware_options_3 |= cpu_to_le32(BIT_0);
9043 
9044 	/* N2N: driver will initiate Login instead of FW */
9045 	icb->firmware_options_3 |= cpu_to_le32(BIT_8);
9046 
9047 	/* Determine NVMe/FCP priority for target ports */
9048 	ha->fc4_type_priority = qla2xxx_get_fc4_priority(vha);
9049 
9050 	if (rval) {
9051 		ql_log(ql_log_warn, vha, 0x0076,
9052 		    "NVRAM configuration failed.\n");
9053 	}
9054 	return (rval);
9055 }
9056 
9057 int
9058 qla82xx_restart_isp(scsi_qla_host_t *vha)
9059 {
9060 	int status, rval;
9061 	struct qla_hw_data *ha = vha->hw;
9062 	struct scsi_qla_host *vp, *tvp;
9063 	unsigned long flags;
9064 
9065 	status = qla2x00_init_rings(vha);
9066 	if (!status) {
9067 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
9068 		ha->flags.chip_reset_done = 1;
9069 
9070 		status = qla2x00_fw_ready(vha);
9071 		if (!status) {
9072 			/* Issue a marker after FW becomes ready. */
9073 			qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL);
9074 			vha->flags.online = 1;
9075 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
9076 		}
9077 
9078 		/* if no cable then assume it's good */
9079 		if ((vha->device_flags & DFLG_NO_CABLE))
9080 			status = 0;
9081 	}
9082 
9083 	if (!status) {
9084 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
9085 
9086 		if (!atomic_read(&vha->loop_down_timer)) {
9087 			/*
9088 			 * Issue marker command only when we are going
9089 			 * to start the I/O .
9090 			 */
9091 			vha->marker_needed = 1;
9092 		}
9093 
9094 		ha->isp_ops->enable_intrs(ha);
9095 
9096 		ha->isp_abort_cnt = 0;
9097 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
9098 
9099 		/* Update the firmware version */
9100 		status = qla82xx_check_md_needed(vha);
9101 
9102 		if (ha->fce) {
9103 			ha->flags.fce_enabled = 1;
9104 			memset(ha->fce, 0,
9105 			    fce_calc_size(ha->fce_bufs));
9106 			rval = qla2x00_enable_fce_trace(vha,
9107 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
9108 			    &ha->fce_bufs);
9109 			if (rval) {
9110 				ql_log(ql_log_warn, vha, 0x8001,
9111 				    "Unable to reinitialize FCE (%d).\n",
9112 				    rval);
9113 				ha->flags.fce_enabled = 0;
9114 			}
9115 		}
9116 
9117 		if (ha->eft) {
9118 			memset(ha->eft, 0, EFT_SIZE);
9119 			rval = qla2x00_enable_eft_trace(vha,
9120 			    ha->eft_dma, EFT_NUM_BUFFERS);
9121 			if (rval) {
9122 				ql_log(ql_log_warn, vha, 0x8010,
9123 				    "Unable to reinitialize EFT (%d).\n",
9124 				    rval);
9125 			}
9126 		}
9127 	}
9128 
9129 	if (!status) {
9130 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
9131 		    "qla82xx_restart_isp succeeded.\n");
9132 
9133 		spin_lock_irqsave(&ha->vport_slock, flags);
9134 		list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
9135 			if (vp->vp_idx) {
9136 				atomic_inc(&vp->vref_count);
9137 				spin_unlock_irqrestore(&ha->vport_slock, flags);
9138 
9139 				qla2x00_vp_abort_isp(vp);
9140 
9141 				spin_lock_irqsave(&ha->vport_slock, flags);
9142 				atomic_dec(&vp->vref_count);
9143 			}
9144 		}
9145 		spin_unlock_irqrestore(&ha->vport_slock, flags);
9146 
9147 	} else {
9148 		ql_log(ql_log_warn, vha, 0x8016,
9149 		    "qla82xx_restart_isp **** FAILED ****.\n");
9150 	}
9151 
9152 	return status;
9153 }
9154 
9155 /*
9156  * qla24xx_get_fcp_prio
9157  *	Gets the fcp cmd priority value for the logged in port.
9158  *	Looks for a match of the port descriptors within
9159  *	each of the fcp prio config entries. If a match is found,
9160  *	the tag (priority) value is returned.
9161  *
9162  * Input:
9163  *	vha = scsi host structure pointer.
9164  *	fcport = port structure pointer.
9165  *
9166  * Return:
9167  *	non-zero (if found)
9168  *	-1 (if not found)
9169  *
9170  * Context:
9171  * 	Kernel context
9172  */
9173 static int
9174 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
9175 {
9176 	int i, entries;
9177 	uint8_t pid_match, wwn_match;
9178 	int priority;
9179 	uint32_t pid1, pid2;
9180 	uint64_t wwn1, wwn2;
9181 	struct qla_fcp_prio_entry *pri_entry;
9182 	struct qla_hw_data *ha = vha->hw;
9183 
9184 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
9185 		return -1;
9186 
9187 	priority = -1;
9188 	entries = ha->fcp_prio_cfg->num_entries;
9189 	pri_entry = &ha->fcp_prio_cfg->entry[0];
9190 
9191 	for (i = 0; i < entries; i++) {
9192 		pid_match = wwn_match = 0;
9193 
9194 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
9195 			pri_entry++;
9196 			continue;
9197 		}
9198 
9199 		/* check source pid for a match */
9200 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
9201 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
9202 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
9203 			if (pid1 == INVALID_PORT_ID)
9204 				pid_match++;
9205 			else if (pid1 == pid2)
9206 				pid_match++;
9207 		}
9208 
9209 		/* check destination pid for a match */
9210 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
9211 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
9212 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
9213 			if (pid1 == INVALID_PORT_ID)
9214 				pid_match++;
9215 			else if (pid1 == pid2)
9216 				pid_match++;
9217 		}
9218 
9219 		/* check source WWN for a match */
9220 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
9221 			wwn1 = wwn_to_u64(vha->port_name);
9222 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
9223 			if (wwn2 == (uint64_t)-1)
9224 				wwn_match++;
9225 			else if (wwn1 == wwn2)
9226 				wwn_match++;
9227 		}
9228 
9229 		/* check destination WWN for a match */
9230 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
9231 			wwn1 = wwn_to_u64(fcport->port_name);
9232 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
9233 			if (wwn2 == (uint64_t)-1)
9234 				wwn_match++;
9235 			else if (wwn1 == wwn2)
9236 				wwn_match++;
9237 		}
9238 
9239 		if (pid_match == 2 || wwn_match == 2) {
9240 			/* Found a matching entry */
9241 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
9242 				priority = pri_entry->tag;
9243 			break;
9244 		}
9245 
9246 		pri_entry++;
9247 	}
9248 
9249 	return priority;
9250 }
9251 
9252 /*
9253  * qla24xx_update_fcport_fcp_prio
9254  *	Activates fcp priority for the logged in fc port
9255  *
9256  * Input:
9257  *	vha = scsi host structure pointer.
9258  *	fcp = port structure pointer.
9259  *
9260  * Return:
9261  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
9262  *
9263  * Context:
9264  *	Kernel context.
9265  */
9266 int
9267 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
9268 {
9269 	int ret;
9270 	int priority;
9271 	uint16_t mb[5];
9272 
9273 	if (fcport->port_type != FCT_TARGET ||
9274 	    fcport->loop_id == FC_NO_LOOP_ID)
9275 		return QLA_FUNCTION_FAILED;
9276 
9277 	priority = qla24xx_get_fcp_prio(vha, fcport);
9278 	if (priority < 0)
9279 		return QLA_FUNCTION_FAILED;
9280 
9281 	if (IS_P3P_TYPE(vha->hw)) {
9282 		fcport->fcp_prio = priority & 0xf;
9283 		return QLA_SUCCESS;
9284 	}
9285 
9286 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
9287 	if (ret == QLA_SUCCESS) {
9288 		if (fcport->fcp_prio != priority)
9289 			ql_dbg(ql_dbg_user, vha, 0x709e,
9290 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
9291 			    "port_id=%02x%02x%02x.\n", priority,
9292 			    fcport->loop_id, fcport->d_id.b.domain,
9293 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
9294 		fcport->fcp_prio = priority & 0xf;
9295 	} else
9296 		ql_dbg(ql_dbg_user, vha, 0x704f,
9297 		    "Unable to update FCP_CMND priority - ret=0x%x for "
9298 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
9299 		    fcport->d_id.b.domain, fcport->d_id.b.area,
9300 		    fcport->d_id.b.al_pa);
9301 	return  ret;
9302 }
9303 
9304 /*
9305  * qla24xx_update_all_fcp_prio
9306  *	Activates fcp priority for all the logged in ports
9307  *
9308  * Input:
9309  *	ha = adapter block pointer.
9310  *
9311  * Return:
9312  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
9313  *
9314  * Context:
9315  *	Kernel context.
9316  */
9317 int
9318 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
9319 {
9320 	int ret;
9321 	fc_port_t *fcport;
9322 
9323 	ret = QLA_FUNCTION_FAILED;
9324 	/* We need to set priority for all logged in ports */
9325 	list_for_each_entry(fcport, &vha->vp_fcports, list)
9326 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
9327 
9328 	return ret;
9329 }
9330 
9331 struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
9332 	int vp_idx, bool startqp)
9333 {
9334 	int rsp_id = 0;
9335 	int  req_id = 0;
9336 	int i;
9337 	struct qla_hw_data *ha = vha->hw;
9338 	uint16_t qpair_id = 0;
9339 	struct qla_qpair *qpair = NULL;
9340 	struct qla_msix_entry *msix;
9341 
9342 	if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
9343 		ql_log(ql_log_warn, vha, 0x00181,
9344 		    "FW/Driver is not multi-queue capable.\n");
9345 		return NULL;
9346 	}
9347 
9348 	if (ql2xmqsupport || ql2xnvmeenable) {
9349 		qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
9350 		if (qpair == NULL) {
9351 			ql_log(ql_log_warn, vha, 0x0182,
9352 			    "Failed to allocate memory for queue pair.\n");
9353 			return NULL;
9354 		}
9355 
9356 		qpair->hw = vha->hw;
9357 		qpair->vha = vha;
9358 		qpair->qp_lock_ptr = &qpair->qp_lock;
9359 		spin_lock_init(&qpair->qp_lock);
9360 		qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
9361 
9362 		/* Assign available que pair id */
9363 		mutex_lock(&ha->mq_lock);
9364 		qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
9365 		if (ha->num_qpairs >= ha->max_qpairs) {
9366 			mutex_unlock(&ha->mq_lock);
9367 			ql_log(ql_log_warn, vha, 0x0183,
9368 			    "No resources to create additional q pair.\n");
9369 			goto fail_qid_map;
9370 		}
9371 		ha->num_qpairs++;
9372 		set_bit(qpair_id, ha->qpair_qid_map);
9373 		ha->queue_pair_map[qpair_id] = qpair;
9374 		qpair->id = qpair_id;
9375 		qpair->vp_idx = vp_idx;
9376 		qpair->fw_started = ha->flags.fw_started;
9377 		INIT_LIST_HEAD(&qpair->hints_list);
9378 		qpair->chip_reset = ha->base_qpair->chip_reset;
9379 		qpair->enable_class_2 = ha->base_qpair->enable_class_2;
9380 		qpair->enable_explicit_conf =
9381 		    ha->base_qpair->enable_explicit_conf;
9382 
9383 		for (i = 0; i < ha->msix_count; i++) {
9384 			msix = &ha->msix_entries[i];
9385 			if (msix->in_use)
9386 				continue;
9387 			qpair->msix = msix;
9388 			ql_dbg(ql_dbg_multiq, vha, 0xc00f,
9389 			    "Vector %x selected for qpair\n", msix->vector);
9390 			break;
9391 		}
9392 		if (!qpair->msix) {
9393 			ql_log(ql_log_warn, vha, 0x0184,
9394 			    "Out of MSI-X vectors!.\n");
9395 			goto fail_msix;
9396 		}
9397 
9398 		qpair->msix->in_use = 1;
9399 		list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
9400 		qpair->pdev = ha->pdev;
9401 		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
9402 			qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
9403 
9404 		mutex_unlock(&ha->mq_lock);
9405 
9406 		/* Create response queue first */
9407 		rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair, startqp);
9408 		if (!rsp_id) {
9409 			ql_log(ql_log_warn, vha, 0x0185,
9410 			    "Failed to create response queue.\n");
9411 			goto fail_rsp;
9412 		}
9413 
9414 		qpair->rsp = ha->rsp_q_map[rsp_id];
9415 
9416 		/* Create request queue */
9417 		req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos,
9418 		    startqp);
9419 		if (!req_id) {
9420 			ql_log(ql_log_warn, vha, 0x0186,
9421 			    "Failed to create request queue.\n");
9422 			goto fail_req;
9423 		}
9424 
9425 		qpair->req = ha->req_q_map[req_id];
9426 		qpair->rsp->req = qpair->req;
9427 		qpair->rsp->qpair = qpair;
9428 
9429 		if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
9430 			if (ha->fw_attributes & BIT_4)
9431 				qpair->difdix_supported = 1;
9432 		}
9433 
9434 		qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
9435 		if (!qpair->srb_mempool) {
9436 			ql_log(ql_log_warn, vha, 0xd036,
9437 			    "Failed to create srb mempool for qpair %d\n",
9438 			    qpair->id);
9439 			goto fail_mempool;
9440 		}
9441 
9442 		if (qla_create_buf_pool(vha, qpair)) {
9443 			ql_log(ql_log_warn, vha, 0xd036,
9444 			    "Failed to initialize buf pool for qpair %d\n",
9445 			    qpair->id);
9446 			goto fail_bufpool;
9447 		}
9448 
9449 		/* Mark as online */
9450 		qpair->online = 1;
9451 
9452 		if (!vha->flags.qpairs_available)
9453 			vha->flags.qpairs_available = 1;
9454 
9455 		ql_dbg(ql_dbg_multiq, vha, 0xc00d,
9456 		    "Request/Response queue pair created, id %d\n",
9457 		    qpair->id);
9458 		ql_dbg(ql_dbg_init, vha, 0x0187,
9459 		    "Request/Response queue pair created, id %d\n",
9460 		    qpair->id);
9461 	}
9462 	return qpair;
9463 
9464 fail_bufpool:
9465 	mempool_destroy(qpair->srb_mempool);
9466 fail_mempool:
9467 	qla25xx_delete_req_que(vha, qpair->req);
9468 fail_req:
9469 	qla25xx_delete_rsp_que(vha, qpair->rsp);
9470 fail_rsp:
9471 	mutex_lock(&ha->mq_lock);
9472 	qpair->msix->in_use = 0;
9473 	list_del(&qpair->qp_list_elem);
9474 	if (list_empty(&vha->qp_list))
9475 		vha->flags.qpairs_available = 0;
9476 fail_msix:
9477 	ha->queue_pair_map[qpair_id] = NULL;
9478 	clear_bit(qpair_id, ha->qpair_qid_map);
9479 	ha->num_qpairs--;
9480 	mutex_unlock(&ha->mq_lock);
9481 fail_qid_map:
9482 	kfree(qpair);
9483 	return NULL;
9484 }
9485 
9486 int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
9487 {
9488 	int ret = QLA_FUNCTION_FAILED;
9489 	struct qla_hw_data *ha = qpair->hw;
9490 
9491 	qpair->delete_in_progress = 1;
9492 
9493 	qla_free_buf_pool(qpair);
9494 
9495 	ret = qla25xx_delete_req_que(vha, qpair->req);
9496 	if (ret != QLA_SUCCESS)
9497 		goto fail;
9498 
9499 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
9500 	if (ret != QLA_SUCCESS)
9501 		goto fail;
9502 
9503 	mutex_lock(&ha->mq_lock);
9504 	ha->queue_pair_map[qpair->id] = NULL;
9505 	clear_bit(qpair->id, ha->qpair_qid_map);
9506 	ha->num_qpairs--;
9507 	list_del(&qpair->qp_list_elem);
9508 	if (list_empty(&vha->qp_list)) {
9509 		vha->flags.qpairs_available = 0;
9510 		vha->flags.qpairs_req_created = 0;
9511 		vha->flags.qpairs_rsp_created = 0;
9512 	}
9513 	mempool_destroy(qpair->srb_mempool);
9514 	kfree(qpair);
9515 	mutex_unlock(&ha->mq_lock);
9516 
9517 	return QLA_SUCCESS;
9518 fail:
9519 	return ret;
9520 }
9521 
9522 uint64_t
9523 qla2x00_count_set_bits(uint32_t num)
9524 {
9525 	/* Brian Kernighan's Algorithm */
9526 	u64 count = 0;
9527 
9528 	while (num) {
9529 		num &= (num - 1);
9530 		count++;
9531 	}
9532 	return count;
9533 }
9534 
9535 uint64_t
9536 qla2x00_get_num_tgts(scsi_qla_host_t *vha)
9537 {
9538 	fc_port_t *f, *tf;
9539 	u64 count = 0;
9540 
9541 	f = NULL;
9542 	tf = NULL;
9543 
9544 	list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
9545 		if (f->port_type != FCT_TARGET)
9546 			continue;
9547 		count++;
9548 	}
9549 	return count;
9550 }
9551 
9552 int qla2xxx_reset_stats(struct Scsi_Host *host, u32 flags)
9553 {
9554 	scsi_qla_host_t *vha = shost_priv(host);
9555 	fc_port_t *fcport = NULL;
9556 	unsigned long int_flags;
9557 
9558 	if (flags & QLA2XX_HW_ERROR)
9559 		vha->hw_err_cnt = 0;
9560 	if (flags & QLA2XX_SHT_LNK_DWN)
9561 		vha->short_link_down_cnt = 0;
9562 	if (flags & QLA2XX_INT_ERR)
9563 		vha->interface_err_cnt = 0;
9564 	if (flags & QLA2XX_CMD_TIMEOUT)
9565 		vha->cmd_timeout_cnt = 0;
9566 	if (flags & QLA2XX_RESET_CMD_ERR)
9567 		vha->reset_cmd_err_cnt = 0;
9568 	if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
9569 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
9570 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
9571 			fcport->tgt_short_link_down_cnt = 0;
9572 			fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
9573 		}
9574 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
9575 	}
9576 	vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
9577 	return 0;
9578 }
9579 
9580 int qla2xxx_start_stats(struct Scsi_Host *host, u32 flags)
9581 {
9582 	return qla2xxx_reset_stats(host, flags);
9583 }
9584 
9585 int qla2xxx_stop_stats(struct Scsi_Host *host, u32 flags)
9586 {
9587 	return qla2xxx_reset_stats(host, flags);
9588 }
9589 
9590 int qla2xxx_get_ini_stats(struct Scsi_Host *host, u32 flags,
9591 			  void *data, u64 size)
9592 {
9593 	scsi_qla_host_t *vha = shost_priv(host);
9594 	struct ql_vnd_host_stats_resp *resp = (struct ql_vnd_host_stats_resp *)data;
9595 	struct ql_vnd_stats *rsp_data = &resp->stats;
9596 	u64 ini_entry_count = 0;
9597 	u64 i = 0;
9598 	u64 entry_count = 0;
9599 	u64 num_tgt = 0;
9600 	u32 tmp_stat_type = 0;
9601 	fc_port_t *fcport = NULL;
9602 	unsigned long int_flags;
9603 
9604 	/* Copy stat type to work on it */
9605 	tmp_stat_type = flags;
9606 
9607 	if (tmp_stat_type & BIT_17) {
9608 		num_tgt = qla2x00_get_num_tgts(vha);
9609 		/* unset BIT_17 */
9610 		tmp_stat_type &= ~(1 << 17);
9611 	}
9612 	ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
9613 
9614 	entry_count = ini_entry_count + num_tgt;
9615 
9616 	rsp_data->entry_count = entry_count;
9617 
9618 	i = 0;
9619 	if (flags & QLA2XX_HW_ERROR) {
9620 		rsp_data->entry[i].stat_type = QLA2XX_HW_ERROR;
9621 		rsp_data->entry[i].tgt_num = 0x0;
9622 		rsp_data->entry[i].cnt = vha->hw_err_cnt;
9623 		i++;
9624 	}
9625 
9626 	if (flags & QLA2XX_SHT_LNK_DWN) {
9627 		rsp_data->entry[i].stat_type = QLA2XX_SHT_LNK_DWN;
9628 		rsp_data->entry[i].tgt_num = 0x0;
9629 		rsp_data->entry[i].cnt = vha->short_link_down_cnt;
9630 		i++;
9631 	}
9632 
9633 	if (flags & QLA2XX_INT_ERR) {
9634 		rsp_data->entry[i].stat_type = QLA2XX_INT_ERR;
9635 		rsp_data->entry[i].tgt_num = 0x0;
9636 		rsp_data->entry[i].cnt = vha->interface_err_cnt;
9637 		i++;
9638 	}
9639 
9640 	if (flags & QLA2XX_CMD_TIMEOUT) {
9641 		rsp_data->entry[i].stat_type = QLA2XX_CMD_TIMEOUT;
9642 		rsp_data->entry[i].tgt_num = 0x0;
9643 		rsp_data->entry[i].cnt = vha->cmd_timeout_cnt;
9644 		i++;
9645 	}
9646 
9647 	if (flags & QLA2XX_RESET_CMD_ERR) {
9648 		rsp_data->entry[i].stat_type = QLA2XX_RESET_CMD_ERR;
9649 		rsp_data->entry[i].tgt_num = 0x0;
9650 		rsp_data->entry[i].cnt = vha->reset_cmd_err_cnt;
9651 		i++;
9652 	}
9653 
9654 	/* i will continue from previous loop, as target
9655 	 * entries are after initiator
9656 	 */
9657 	if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
9658 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
9659 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
9660 			if (fcport->port_type != FCT_TARGET)
9661 				continue;
9662 			if (!fcport->rport)
9663 				continue;
9664 			rsp_data->entry[i].stat_type = QLA2XX_TGT_SHT_LNK_DOWN;
9665 			rsp_data->entry[i].tgt_num = fcport->rport->number;
9666 			rsp_data->entry[i].cnt = fcport->tgt_short_link_down_cnt;
9667 			i++;
9668 		}
9669 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
9670 	}
9671 	resp->status = EXT_STATUS_OK;
9672 
9673 	return 0;
9674 }
9675 
9676 int qla2xxx_get_tgt_stats(struct Scsi_Host *host, u32 flags,
9677 			  struct fc_rport *rport, void *data, u64 size)
9678 {
9679 	struct ql_vnd_tgt_stats_resp *tgt_data = data;
9680 	fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
9681 
9682 	tgt_data->status = 0;
9683 	tgt_data->stats.entry_count = 1;
9684 	tgt_data->stats.entry[0].stat_type = flags;
9685 	tgt_data->stats.entry[0].tgt_num = rport->number;
9686 	tgt_data->stats.entry[0].cnt = fcport->tgt_short_link_down_cnt;
9687 
9688 	return 0;
9689 }
9690 
9691 int qla2xxx_disable_port(struct Scsi_Host *host)
9692 {
9693 	scsi_qla_host_t *vha = shost_priv(host);
9694 
9695 	vha->hw->flags.port_isolated = 1;
9696 
9697 	if (qla2x00_isp_reg_stat(vha->hw)) {
9698 		ql_log(ql_log_info, vha, 0x9006,
9699 		    "PCI/Register disconnect, exiting.\n");
9700 		qla_pci_set_eeh_busy(vha);
9701 		return FAILED;
9702 	}
9703 	if (qla2x00_chip_is_down(vha))
9704 		return 0;
9705 
9706 	if (vha->flags.online) {
9707 		qla2x00_abort_isp_cleanup(vha);
9708 		qla2x00_wait_for_sess_deletion(vha);
9709 	}
9710 
9711 	return 0;
9712 }
9713 
9714 int qla2xxx_enable_port(struct Scsi_Host *host)
9715 {
9716 	scsi_qla_host_t *vha = shost_priv(host);
9717 
9718 	if (qla2x00_isp_reg_stat(vha->hw)) {
9719 		ql_log(ql_log_info, vha, 0x9001,
9720 		    "PCI/Register disconnect, exiting.\n");
9721 		qla_pci_set_eeh_busy(vha);
9722 		return FAILED;
9723 	}
9724 
9725 	vha->hw->flags.port_isolated = 0;
9726 	/* Set the flag to 1, so that isp_abort can proceed */
9727 	vha->flags.online = 1;
9728 	set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9729 	qla2xxx_wake_dpc(vha);
9730 
9731 	return 0;
9732 }
9733