xref: /openbmc/linux/drivers/scsi/qla2xxx/qla_init.c (revision e23feb16)
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2013 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8 #include "qla_gbl.h"
9 
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <linux/vmalloc.h>
13 
14 #include "qla_devtbl.h"
15 
16 #ifdef CONFIG_SPARC
17 #include <asm/prom.h>
18 #endif
19 
20 #include <target/target_core_base.h>
21 #include "qla_target.h"
22 
23 /*
24 *  QLogic ISP2x00 Hardware Support Function Prototypes.
25 */
26 static int qla2x00_isp_firmware(scsi_qla_host_t *);
27 static int qla2x00_setup_chip(scsi_qla_host_t *);
28 static int qla2x00_fw_ready(scsi_qla_host_t *);
29 static int qla2x00_configure_hba(scsi_qla_host_t *);
30 static int qla2x00_configure_loop(scsi_qla_host_t *);
31 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
32 static int qla2x00_configure_fabric(scsi_qla_host_t *);
33 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
34 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
35     uint16_t *);
36 
37 static int qla2x00_restart_isp(scsi_qla_host_t *);
38 
39 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
40 static int qla84xx_init_chip(scsi_qla_host_t *);
41 static int qla25xx_init_queues(struct qla_hw_data *);
42 
43 /* SRB Extensions ---------------------------------------------------------- */
44 
45 void
46 qla2x00_sp_timeout(unsigned long __data)
47 {
48 	srb_t *sp = (srb_t *)__data;
49 	struct srb_iocb *iocb;
50 	fc_port_t *fcport = sp->fcport;
51 	struct qla_hw_data *ha = fcport->vha->hw;
52 	struct req_que *req;
53 	unsigned long flags;
54 
55 	spin_lock_irqsave(&ha->hardware_lock, flags);
56 	req = ha->req_q_map[0];
57 	req->outstanding_cmds[sp->handle] = NULL;
58 	iocb = &sp->u.iocb_cmd;
59 	iocb->timeout(sp);
60 	sp->free(fcport->vha, sp);
61 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
62 }
63 
64 void
65 qla2x00_sp_free(void *data, void *ptr)
66 {
67 	srb_t *sp = (srb_t *)ptr;
68 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
69 	struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
70 
71 	del_timer(&iocb->timer);
72 	qla2x00_rel_sp(vha, sp);
73 }
74 
75 /* Asynchronous Login/Logout Routines -------------------------------------- */
76 
77 unsigned long
78 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
79 {
80 	unsigned long tmo;
81 	struct qla_hw_data *ha = vha->hw;
82 
83 	/* Firmware should use switch negotiated r_a_tov for timeout. */
84 	tmo = ha->r_a_tov / 10 * 2;
85 	if (IS_QLAFX00(ha)) {
86 		tmo = FX00_DEF_RATOV * 2;
87 	} else if (!IS_FWI2_CAPABLE(ha)) {
88 		/*
89 		 * Except for earlier ISPs where the timeout is seeded from the
90 		 * initialization control block.
91 		 */
92 		tmo = ha->login_timeout;
93 	}
94 	return tmo;
95 }
96 
97 static void
98 qla2x00_async_iocb_timeout(void *data)
99 {
100 	srb_t *sp = (srb_t *)data;
101 	fc_port_t *fcport = sp->fcport;
102 
103 	ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
104 	    "Async-%s timeout - hdl=%x portid=%02x%02x%02x.\n",
105 	    sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
106 	    fcport->d_id.b.al_pa);
107 
108 	fcport->flags &= ~FCF_ASYNC_SENT;
109 	if (sp->type == SRB_LOGIN_CMD) {
110 		struct srb_iocb *lio = &sp->u.iocb_cmd;
111 		qla2x00_post_async_logout_work(fcport->vha, fcport, NULL);
112 		/* Retry as needed. */
113 		lio->u.logio.data[0] = MBS_COMMAND_ERROR;
114 		lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
115 			QLA_LOGIO_LOGIN_RETRIED : 0;
116 		qla2x00_post_async_login_done_work(fcport->vha, fcport,
117 			lio->u.logio.data);
118 	}
119 }
120 
121 static void
122 qla2x00_async_login_sp_done(void *data, void *ptr, int res)
123 {
124 	srb_t *sp = (srb_t *)ptr;
125 	struct srb_iocb *lio = &sp->u.iocb_cmd;
126 	struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
127 
128 	if (!test_bit(UNLOADING, &vha->dpc_flags))
129 		qla2x00_post_async_login_done_work(sp->fcport->vha, sp->fcport,
130 		    lio->u.logio.data);
131 	sp->free(sp->fcport->vha, sp);
132 }
133 
134 int
135 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
136     uint16_t *data)
137 {
138 	srb_t *sp;
139 	struct srb_iocb *lio;
140 	int rval;
141 
142 	rval = QLA_FUNCTION_FAILED;
143 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
144 	if (!sp)
145 		goto done;
146 
147 	sp->type = SRB_LOGIN_CMD;
148 	sp->name = "login";
149 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
150 
151 	lio = &sp->u.iocb_cmd;
152 	lio->timeout = qla2x00_async_iocb_timeout;
153 	sp->done = qla2x00_async_login_sp_done;
154 	lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
155 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
156 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
157 	rval = qla2x00_start_sp(sp);
158 	if (rval != QLA_SUCCESS)
159 		goto done_free_sp;
160 
161 	ql_dbg(ql_dbg_disc, vha, 0x2072,
162 	    "Async-login - hdl=%x, loopid=%x portid=%02x%02x%02x "
163 	    "retries=%d.\n", sp->handle, fcport->loop_id,
164 	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
165 	    fcport->login_retry);
166 	return rval;
167 
168 done_free_sp:
169 	sp->free(fcport->vha, sp);
170 done:
171 	return rval;
172 }
173 
174 static void
175 qla2x00_async_logout_sp_done(void *data, void *ptr, int res)
176 {
177 	srb_t *sp = (srb_t *)ptr;
178 	struct srb_iocb *lio = &sp->u.iocb_cmd;
179 	struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
180 
181 	if (!test_bit(UNLOADING, &vha->dpc_flags))
182 		qla2x00_post_async_logout_done_work(sp->fcport->vha, sp->fcport,
183 		    lio->u.logio.data);
184 	sp->free(sp->fcport->vha, sp);
185 }
186 
187 int
188 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
189 {
190 	srb_t *sp;
191 	struct srb_iocb *lio;
192 	int rval;
193 
194 	rval = QLA_FUNCTION_FAILED;
195 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
196 	if (!sp)
197 		goto done;
198 
199 	sp->type = SRB_LOGOUT_CMD;
200 	sp->name = "logout";
201 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
202 
203 	lio = &sp->u.iocb_cmd;
204 	lio->timeout = qla2x00_async_iocb_timeout;
205 	sp->done = qla2x00_async_logout_sp_done;
206 	rval = qla2x00_start_sp(sp);
207 	if (rval != QLA_SUCCESS)
208 		goto done_free_sp;
209 
210 	ql_dbg(ql_dbg_disc, vha, 0x2070,
211 	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
212 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
213 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
214 	return rval;
215 
216 done_free_sp:
217 	sp->free(fcport->vha, sp);
218 done:
219 	return rval;
220 }
221 
222 static void
223 qla2x00_async_adisc_sp_done(void *data, void *ptr, int res)
224 {
225 	srb_t *sp = (srb_t *)ptr;
226 	struct srb_iocb *lio = &sp->u.iocb_cmd;
227 	struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
228 
229 	if (!test_bit(UNLOADING, &vha->dpc_flags))
230 		qla2x00_post_async_adisc_done_work(sp->fcport->vha, sp->fcport,
231 		    lio->u.logio.data);
232 	sp->free(sp->fcport->vha, sp);
233 }
234 
235 int
236 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
237     uint16_t *data)
238 {
239 	srb_t *sp;
240 	struct srb_iocb *lio;
241 	int rval;
242 
243 	rval = QLA_FUNCTION_FAILED;
244 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
245 	if (!sp)
246 		goto done;
247 
248 	sp->type = SRB_ADISC_CMD;
249 	sp->name = "adisc";
250 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
251 
252 	lio = &sp->u.iocb_cmd;
253 	lio->timeout = qla2x00_async_iocb_timeout;
254 	sp->done = qla2x00_async_adisc_sp_done;
255 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
256 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
257 	rval = qla2x00_start_sp(sp);
258 	if (rval != QLA_SUCCESS)
259 		goto done_free_sp;
260 
261 	ql_dbg(ql_dbg_disc, vha, 0x206f,
262 	    "Async-adisc - hdl=%x loopid=%x portid=%02x%02x%02x.\n",
263 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
264 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
265 	return rval;
266 
267 done_free_sp:
268 	sp->free(fcport->vha, sp);
269 done:
270 	return rval;
271 }
272 
273 static void
274 qla2x00_async_tm_cmd_done(void *data, void *ptr, int res)
275 {
276 	srb_t *sp = (srb_t *)ptr;
277 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
278 	struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
279 	uint32_t flags;
280 	uint16_t lun;
281 	int rval;
282 
283 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
284 		flags = iocb->u.tmf.flags;
285 		lun = (uint16_t)iocb->u.tmf.lun;
286 
287 		/* Issue Marker IOCB */
288 		rval = qla2x00_marker(vha, vha->hw->req_q_map[0],
289 			vha->hw->rsp_q_map[0], sp->fcport->loop_id, lun,
290 			flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
291 
292 		if ((rval != QLA_SUCCESS) || iocb->u.tmf.data) {
293 			ql_dbg(ql_dbg_taskm, vha, 0x8030,
294 			    "TM IOCB failed (%x).\n", rval);
295 		}
296 	}
297 	sp->free(sp->fcport->vha, sp);
298 }
299 
300 int
301 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t tm_flags, uint32_t lun,
302 	uint32_t tag)
303 {
304 	struct scsi_qla_host *vha = fcport->vha;
305 	srb_t *sp;
306 	struct srb_iocb *tcf;
307 	int rval;
308 
309 	rval = QLA_FUNCTION_FAILED;
310 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
311 	if (!sp)
312 		goto done;
313 
314 	sp->type = SRB_TM_CMD;
315 	sp->name = "tmf";
316 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
317 
318 	tcf = &sp->u.iocb_cmd;
319 	tcf->u.tmf.flags = tm_flags;
320 	tcf->u.tmf.lun = lun;
321 	tcf->u.tmf.data = tag;
322 	tcf->timeout = qla2x00_async_iocb_timeout;
323 	sp->done = qla2x00_async_tm_cmd_done;
324 
325 	rval = qla2x00_start_sp(sp);
326 	if (rval != QLA_SUCCESS)
327 		goto done_free_sp;
328 
329 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
330 	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
331 	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
332 	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
333 	return rval;
334 
335 done_free_sp:
336 	sp->free(fcport->vha, sp);
337 done:
338 	return rval;
339 }
340 
341 void
342 qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport,
343     uint16_t *data)
344 {
345 	int rval;
346 
347 	switch (data[0]) {
348 	case MBS_COMMAND_COMPLETE:
349 		/*
350 		 * Driver must validate login state - If PRLI not complete,
351 		 * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
352 		 * requests.
353 		 */
354 		rval = qla2x00_get_port_database(vha, fcport, 0);
355 		if (rval == QLA_NOT_LOGGED_IN) {
356 			fcport->flags &= ~FCF_ASYNC_SENT;
357 			fcport->flags |= FCF_LOGIN_NEEDED;
358 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
359 			break;
360 		}
361 
362 		if (rval != QLA_SUCCESS) {
363 			qla2x00_post_async_logout_work(vha, fcport, NULL);
364 			qla2x00_post_async_login_work(vha, fcport, NULL);
365 			break;
366 		}
367 		if (fcport->flags & FCF_FCP2_DEVICE) {
368 			qla2x00_post_async_adisc_work(vha, fcport, data);
369 			break;
370 		}
371 		qla2x00_update_fcport(vha, fcport);
372 		break;
373 	case MBS_COMMAND_ERROR:
374 		fcport->flags &= ~FCF_ASYNC_SENT;
375 		if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
376 			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
377 		else
378 			qla2x00_mark_device_lost(vha, fcport, 1, 0);
379 		break;
380 	case MBS_PORT_ID_USED:
381 		fcport->loop_id = data[1];
382 		qla2x00_post_async_logout_work(vha, fcport, NULL);
383 		qla2x00_post_async_login_work(vha, fcport, NULL);
384 		break;
385 	case MBS_LOOP_ID_USED:
386 		fcport->loop_id++;
387 		rval = qla2x00_find_new_loop_id(vha, fcport);
388 		if (rval != QLA_SUCCESS) {
389 			fcport->flags &= ~FCF_ASYNC_SENT;
390 			qla2x00_mark_device_lost(vha, fcport, 1, 0);
391 			break;
392 		}
393 		qla2x00_post_async_login_work(vha, fcport, NULL);
394 		break;
395 	}
396 	return;
397 }
398 
399 void
400 qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
401     uint16_t *data)
402 {
403 	qla2x00_mark_device_lost(vha, fcport, 1, 0);
404 	return;
405 }
406 
407 void
408 qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
409     uint16_t *data)
410 {
411 	if (data[0] == MBS_COMMAND_COMPLETE) {
412 		qla2x00_update_fcport(vha, fcport);
413 
414 		return;
415 	}
416 
417 	/* Retry login. */
418 	fcport->flags &= ~FCF_ASYNC_SENT;
419 	if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
420 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
421 	else
422 		qla2x00_mark_device_lost(vha, fcport, 1, 0);
423 
424 	return;
425 }
426 
427 /****************************************************************************/
428 /*                QLogic ISP2x00 Hardware Support Functions.                */
429 /****************************************************************************/
430 
431 static int
432 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
433 {
434 	int rval = QLA_SUCCESS;
435 	struct qla_hw_data *ha = vha->hw;
436 	uint32_t idc_major_ver, idc_minor_ver;
437 	uint16_t config[4];
438 
439 	qla83xx_idc_lock(vha, 0);
440 
441 	/* SV: TODO: Assign initialization timeout from
442 	 * flash-info / other param
443 	 */
444 	ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
445 	ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
446 
447 	/* Set our fcoe function presence */
448 	if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
449 		ql_dbg(ql_dbg_p3p, vha, 0xb077,
450 		    "Error while setting DRV-Presence.\n");
451 		rval = QLA_FUNCTION_FAILED;
452 		goto exit;
453 	}
454 
455 	/* Decide the reset ownership */
456 	qla83xx_reset_ownership(vha);
457 
458 	/*
459 	 * On first protocol driver load:
460 	 * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
461 	 * register.
462 	 * Others: Check compatibility with current IDC Major version.
463 	 */
464 	qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
465 	if (ha->flags.nic_core_reset_owner) {
466 		/* Set IDC Major version */
467 		idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
468 		qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
469 
470 		/* Clearing IDC-Lock-Recovery register */
471 		qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
472 	} else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
473 		/*
474 		 * Clear further IDC participation if we are not compatible with
475 		 * the current IDC Major Version.
476 		 */
477 		ql_log(ql_log_warn, vha, 0xb07d,
478 		    "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
479 		    idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
480 		__qla83xx_clear_drv_presence(vha);
481 		rval = QLA_FUNCTION_FAILED;
482 		goto exit;
483 	}
484 	/* Each function sets its supported Minor version. */
485 	qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
486 	idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
487 	qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
488 
489 	if (ha->flags.nic_core_reset_owner) {
490 		memset(config, 0, sizeof(config));
491 		if (!qla81xx_get_port_config(vha, config))
492 			qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
493 			    QLA8XXX_DEV_READY);
494 	}
495 
496 	rval = qla83xx_idc_state_handler(vha);
497 
498 exit:
499 	qla83xx_idc_unlock(vha, 0);
500 
501 	return rval;
502 }
503 
504 /*
505 * qla2x00_initialize_adapter
506 *      Initialize board.
507 *
508 * Input:
509 *      ha = adapter block pointer.
510 *
511 * Returns:
512 *      0 = success
513 */
514 int
515 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
516 {
517 	int	rval;
518 	struct qla_hw_data *ha = vha->hw;
519 	struct req_que *req = ha->req_q_map[0];
520 
521 	/* Clear adapter flags. */
522 	vha->flags.online = 0;
523 	ha->flags.chip_reset_done = 0;
524 	vha->flags.reset_active = 0;
525 	ha->flags.pci_channel_io_perm_failure = 0;
526 	ha->flags.eeh_busy = 0;
527 	vha->qla_stats.jiffies_at_last_reset = get_jiffies_64();
528 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
529 	atomic_set(&vha->loop_state, LOOP_DOWN);
530 	vha->device_flags = DFLG_NO_CABLE;
531 	vha->dpc_flags = 0;
532 	vha->flags.management_server_logged_in = 0;
533 	vha->marker_needed = 0;
534 	ha->isp_abort_cnt = 0;
535 	ha->beacon_blink_led = 0;
536 
537 	set_bit(0, ha->req_qid_map);
538 	set_bit(0, ha->rsp_qid_map);
539 
540 	ql_dbg(ql_dbg_init, vha, 0x0040,
541 	    "Configuring PCI space...\n");
542 	rval = ha->isp_ops->pci_config(vha);
543 	if (rval) {
544 		ql_log(ql_log_warn, vha, 0x0044,
545 		    "Unable to configure PCI space.\n");
546 		return (rval);
547 	}
548 
549 	ha->isp_ops->reset_chip(vha);
550 
551 	rval = qla2xxx_get_flash_info(vha);
552 	if (rval) {
553 		ql_log(ql_log_fatal, vha, 0x004f,
554 		    "Unable to validate FLASH data.\n");
555 		return rval;
556 	}
557 
558 	if (IS_QLA8044(ha)) {
559 		qla8044_read_reset_template(vha);
560 
561 		/* NOTE: If ql2xdontresethba==1, set IDC_CTRL DONTRESET_BIT0.
562 		 * If DONRESET_BIT0 is set, drivers should not set dev_state
563 		 * to NEED_RESET. But if NEED_RESET is set, drivers should
564 		 * should honor the reset. */
565 		if (ql2xdontresethba == 1)
566 			qla8044_set_idc_dontreset(vha);
567 	}
568 
569 	ha->isp_ops->get_flash_version(vha, req->ring);
570 	ql_dbg(ql_dbg_init, vha, 0x0061,
571 	    "Configure NVRAM parameters...\n");
572 
573 	ha->isp_ops->nvram_config(vha);
574 
575 	if (ha->flags.disable_serdes) {
576 		/* Mask HBA via NVRAM settings? */
577 		ql_log(ql_log_info, vha, 0x0077,
578 		    "Masking HBA WWPN %8phN (via NVRAM).\n", vha->port_name);
579 		return QLA_FUNCTION_FAILED;
580 	}
581 
582 	ql_dbg(ql_dbg_init, vha, 0x0078,
583 	    "Verifying loaded RISC code...\n");
584 
585 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
586 		rval = ha->isp_ops->chip_diag(vha);
587 		if (rval)
588 			return (rval);
589 		rval = qla2x00_setup_chip(vha);
590 		if (rval)
591 			return (rval);
592 	}
593 
594 	if (IS_QLA84XX(ha)) {
595 		ha->cs84xx = qla84xx_get_chip(vha);
596 		if (!ha->cs84xx) {
597 			ql_log(ql_log_warn, vha, 0x00d0,
598 			    "Unable to configure ISP84XX.\n");
599 			return QLA_FUNCTION_FAILED;
600 		}
601 	}
602 
603 	if (qla_ini_mode_enabled(vha))
604 		rval = qla2x00_init_rings(vha);
605 
606 	ha->flags.chip_reset_done = 1;
607 
608 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
609 		/* Issue verify 84xx FW IOCB to complete 84xx initialization */
610 		rval = qla84xx_init_chip(vha);
611 		if (rval != QLA_SUCCESS) {
612 			ql_log(ql_log_warn, vha, 0x00d4,
613 			    "Unable to initialize ISP84XX.\n");
614 		qla84xx_put_chip(vha);
615 		}
616 	}
617 
618 	/* Load the NIC Core f/w if we are the first protocol driver. */
619 	if (IS_QLA8031(ha)) {
620 		rval = qla83xx_nic_core_fw_load(vha);
621 		if (rval)
622 			ql_log(ql_log_warn, vha, 0x0124,
623 			    "Error in initializing NIC Core f/w.\n");
624 	}
625 
626 	if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
627 		qla24xx_read_fcp_prio_cfg(vha);
628 
629 	if (IS_P3P_TYPE(ha))
630 		qla82xx_set_driver_version(vha, QLA2XXX_VERSION);
631 	else
632 		qla25xx_set_driver_version(vha, QLA2XXX_VERSION);
633 
634 	return (rval);
635 }
636 
637 /**
638  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
639  * @ha: HA context
640  *
641  * Returns 0 on success.
642  */
643 int
644 qla2100_pci_config(scsi_qla_host_t *vha)
645 {
646 	uint16_t w;
647 	unsigned long flags;
648 	struct qla_hw_data *ha = vha->hw;
649 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
650 
651 	pci_set_master(ha->pdev);
652 	pci_try_set_mwi(ha->pdev);
653 
654 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
655 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
656 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
657 
658 	pci_disable_rom(ha->pdev);
659 
660 	/* Get PCI bus information. */
661 	spin_lock_irqsave(&ha->hardware_lock, flags);
662 	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
663 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
664 
665 	return QLA_SUCCESS;
666 }
667 
668 /**
669  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
670  * @ha: HA context
671  *
672  * Returns 0 on success.
673  */
674 int
675 qla2300_pci_config(scsi_qla_host_t *vha)
676 {
677 	uint16_t	w;
678 	unsigned long   flags = 0;
679 	uint32_t	cnt;
680 	struct qla_hw_data *ha = vha->hw;
681 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
682 
683 	pci_set_master(ha->pdev);
684 	pci_try_set_mwi(ha->pdev);
685 
686 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
687 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
688 
689 	if (IS_QLA2322(ha) || IS_QLA6322(ha))
690 		w &= ~PCI_COMMAND_INTX_DISABLE;
691 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
692 
693 	/*
694 	 * If this is a 2300 card and not 2312, reset the
695 	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
696 	 * the 2310 also reports itself as a 2300 so we need to get the
697 	 * fb revision level -- a 6 indicates it really is a 2300 and
698 	 * not a 2310.
699 	 */
700 	if (IS_QLA2300(ha)) {
701 		spin_lock_irqsave(&ha->hardware_lock, flags);
702 
703 		/* Pause RISC. */
704 		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
705 		for (cnt = 0; cnt < 30000; cnt++) {
706 			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
707 				break;
708 
709 			udelay(10);
710 		}
711 
712 		/* Select FPM registers. */
713 		WRT_REG_WORD(&reg->ctrl_status, 0x20);
714 		RD_REG_WORD(&reg->ctrl_status);
715 
716 		/* Get the fb rev level */
717 		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
718 
719 		if (ha->fb_rev == FPM_2300)
720 			pci_clear_mwi(ha->pdev);
721 
722 		/* Deselect FPM registers. */
723 		WRT_REG_WORD(&reg->ctrl_status, 0x0);
724 		RD_REG_WORD(&reg->ctrl_status);
725 
726 		/* Release RISC module. */
727 		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
728 		for (cnt = 0; cnt < 30000; cnt++) {
729 			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
730 				break;
731 
732 			udelay(10);
733 		}
734 
735 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
736 	}
737 
738 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
739 
740 	pci_disable_rom(ha->pdev);
741 
742 	/* Get PCI bus information. */
743 	spin_lock_irqsave(&ha->hardware_lock, flags);
744 	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
745 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
746 
747 	return QLA_SUCCESS;
748 }
749 
750 /**
751  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
752  * @ha: HA context
753  *
754  * Returns 0 on success.
755  */
756 int
757 qla24xx_pci_config(scsi_qla_host_t *vha)
758 {
759 	uint16_t w;
760 	unsigned long flags = 0;
761 	struct qla_hw_data *ha = vha->hw;
762 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
763 
764 	pci_set_master(ha->pdev);
765 	pci_try_set_mwi(ha->pdev);
766 
767 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
768 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
769 	w &= ~PCI_COMMAND_INTX_DISABLE;
770 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
771 
772 	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
773 
774 	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
775 	if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
776 		pcix_set_mmrbc(ha->pdev, 2048);
777 
778 	/* PCIe -- adjust Maximum Read Request Size (2048). */
779 	if (pci_is_pcie(ha->pdev))
780 		pcie_set_readrq(ha->pdev, 4096);
781 
782 	pci_disable_rom(ha->pdev);
783 
784 	ha->chip_revision = ha->pdev->revision;
785 
786 	/* Get PCI bus information. */
787 	spin_lock_irqsave(&ha->hardware_lock, flags);
788 	ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
789 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
790 
791 	return QLA_SUCCESS;
792 }
793 
794 /**
795  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
796  * @ha: HA context
797  *
798  * Returns 0 on success.
799  */
800 int
801 qla25xx_pci_config(scsi_qla_host_t *vha)
802 {
803 	uint16_t w;
804 	struct qla_hw_data *ha = vha->hw;
805 
806 	pci_set_master(ha->pdev);
807 	pci_try_set_mwi(ha->pdev);
808 
809 	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
810 	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
811 	w &= ~PCI_COMMAND_INTX_DISABLE;
812 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
813 
814 	/* PCIe -- adjust Maximum Read Request Size (2048). */
815 	if (pci_is_pcie(ha->pdev))
816 		pcie_set_readrq(ha->pdev, 4096);
817 
818 	pci_disable_rom(ha->pdev);
819 
820 	ha->chip_revision = ha->pdev->revision;
821 
822 	return QLA_SUCCESS;
823 }
824 
825 /**
826  * qla2x00_isp_firmware() - Choose firmware image.
827  * @ha: HA context
828  *
829  * Returns 0 on success.
830  */
831 static int
832 qla2x00_isp_firmware(scsi_qla_host_t *vha)
833 {
834 	int  rval;
835 	uint16_t loop_id, topo, sw_cap;
836 	uint8_t domain, area, al_pa;
837 	struct qla_hw_data *ha = vha->hw;
838 
839 	/* Assume loading risc code */
840 	rval = QLA_FUNCTION_FAILED;
841 
842 	if (ha->flags.disable_risc_code_load) {
843 		ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
844 
845 		/* Verify checksum of loaded RISC code. */
846 		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
847 		if (rval == QLA_SUCCESS) {
848 			/* And, verify we are not in ROM code. */
849 			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
850 			    &area, &domain, &topo, &sw_cap);
851 		}
852 	}
853 
854 	if (rval)
855 		ql_dbg(ql_dbg_init, vha, 0x007a,
856 		    "**** Load RISC code ****.\n");
857 
858 	return (rval);
859 }
860 
861 /**
862  * qla2x00_reset_chip() - Reset ISP chip.
863  * @ha: HA context
864  *
865  * Returns 0 on success.
866  */
867 void
868 qla2x00_reset_chip(scsi_qla_host_t *vha)
869 {
870 	unsigned long   flags = 0;
871 	struct qla_hw_data *ha = vha->hw;
872 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
873 	uint32_t	cnt;
874 	uint16_t	cmd;
875 
876 	if (unlikely(pci_channel_offline(ha->pdev)))
877 		return;
878 
879 	ha->isp_ops->disable_intrs(ha);
880 
881 	spin_lock_irqsave(&ha->hardware_lock, flags);
882 
883 	/* Turn off master enable */
884 	cmd = 0;
885 	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
886 	cmd &= ~PCI_COMMAND_MASTER;
887 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
888 
889 	if (!IS_QLA2100(ha)) {
890 		/* Pause RISC. */
891 		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
892 		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
893 			for (cnt = 0; cnt < 30000; cnt++) {
894 				if ((RD_REG_WORD(&reg->hccr) &
895 				    HCCR_RISC_PAUSE) != 0)
896 					break;
897 				udelay(100);
898 			}
899 		} else {
900 			RD_REG_WORD(&reg->hccr);	/* PCI Posting. */
901 			udelay(10);
902 		}
903 
904 		/* Select FPM registers. */
905 		WRT_REG_WORD(&reg->ctrl_status, 0x20);
906 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
907 
908 		/* FPM Soft Reset. */
909 		WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
910 		RD_REG_WORD(&reg->fpm_diag_config);	/* PCI Posting. */
911 
912 		/* Toggle Fpm Reset. */
913 		if (!IS_QLA2200(ha)) {
914 			WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
915 			RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
916 		}
917 
918 		/* Select frame buffer registers. */
919 		WRT_REG_WORD(&reg->ctrl_status, 0x10);
920 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
921 
922 		/* Reset frame buffer FIFOs. */
923 		if (IS_QLA2200(ha)) {
924 			WRT_FB_CMD_REG(ha, reg, 0xa000);
925 			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
926 		} else {
927 			WRT_FB_CMD_REG(ha, reg, 0x00fc);
928 
929 			/* Read back fb_cmd until zero or 3 seconds max */
930 			for (cnt = 0; cnt < 3000; cnt++) {
931 				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
932 					break;
933 				udelay(100);
934 			}
935 		}
936 
937 		/* Select RISC module registers. */
938 		WRT_REG_WORD(&reg->ctrl_status, 0);
939 		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */
940 
941 		/* Reset RISC processor. */
942 		WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
943 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
944 
945 		/* Release RISC processor. */
946 		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
947 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
948 	}
949 
950 	WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
951 	WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
952 
953 	/* Reset ISP chip. */
954 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
955 
956 	/* Wait for RISC to recover from reset. */
957 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
958 		/*
959 		 * It is necessary to for a delay here since the card doesn't
960 		 * respond to PCI reads during a reset. On some architectures
961 		 * this will result in an MCA.
962 		 */
963 		udelay(20);
964 		for (cnt = 30000; cnt; cnt--) {
965 			if ((RD_REG_WORD(&reg->ctrl_status) &
966 			    CSR_ISP_SOFT_RESET) == 0)
967 				break;
968 			udelay(100);
969 		}
970 	} else
971 		udelay(10);
972 
973 	/* Reset RISC processor. */
974 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
975 
976 	WRT_REG_WORD(&reg->semaphore, 0);
977 
978 	/* Release RISC processor. */
979 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
980 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
981 
982 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
983 		for (cnt = 0; cnt < 30000; cnt++) {
984 			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
985 				break;
986 
987 			udelay(100);
988 		}
989 	} else
990 		udelay(100);
991 
992 	/* Turn on master enable */
993 	cmd |= PCI_COMMAND_MASTER;
994 	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
995 
996 	/* Disable RISC pause on FPM parity error. */
997 	if (!IS_QLA2100(ha)) {
998 		WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
999 		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
1000 	}
1001 
1002 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1003 }
1004 
1005 /**
1006  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
1007  *
1008  * Returns 0 on success.
1009  */
1010 static int
1011 qla81xx_reset_mpi(scsi_qla_host_t *vha)
1012 {
1013 	uint16_t mb[4] = {0x1010, 0, 1, 0};
1014 
1015 	if (!IS_QLA81XX(vha->hw))
1016 		return QLA_SUCCESS;
1017 
1018 	return qla81xx_write_mpi_register(vha, mb);
1019 }
1020 
1021 /**
1022  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
1023  * @ha: HA context
1024  *
1025  * Returns 0 on success.
1026  */
1027 static inline void
1028 qla24xx_reset_risc(scsi_qla_host_t *vha)
1029 {
1030 	unsigned long flags = 0;
1031 	struct qla_hw_data *ha = vha->hw;
1032 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1033 	uint32_t cnt, d2;
1034 	uint16_t wd;
1035 	static int abts_cnt; /* ISP abort retry counts */
1036 
1037 	spin_lock_irqsave(&ha->hardware_lock, flags);
1038 
1039 	/* Reset RISC. */
1040 	WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
1041 	for (cnt = 0; cnt < 30000; cnt++) {
1042 		if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
1043 			break;
1044 
1045 		udelay(10);
1046 	}
1047 
1048 	WRT_REG_DWORD(&reg->ctrl_status,
1049 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
1050 	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
1051 
1052 	udelay(100);
1053 	/* Wait for firmware to complete NVRAM accesses. */
1054 	d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1055 	for (cnt = 10000 ; cnt && d2; cnt--) {
1056 		udelay(5);
1057 		d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1058 		barrier();
1059 	}
1060 
1061 	/* Wait for soft-reset to complete. */
1062 	d2 = RD_REG_DWORD(&reg->ctrl_status);
1063 	for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
1064 		udelay(5);
1065 		d2 = RD_REG_DWORD(&reg->ctrl_status);
1066 		barrier();
1067 	}
1068 
1069 	/* If required, do an MPI FW reset now */
1070 	if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
1071 		if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
1072 			if (++abts_cnt < 5) {
1073 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1074 				set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
1075 			} else {
1076 				/*
1077 				 * We exhausted the ISP abort retries. We have to
1078 				 * set the board offline.
1079 				 */
1080 				abts_cnt = 0;
1081 				vha->flags.online = 0;
1082 			}
1083 		}
1084 	}
1085 
1086 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
1087 	RD_REG_DWORD(&reg->hccr);
1088 
1089 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
1090 	RD_REG_DWORD(&reg->hccr);
1091 
1092 	WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
1093 	RD_REG_DWORD(&reg->hccr);
1094 
1095 	d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1096 	for (cnt = 6000000 ; cnt && d2; cnt--) {
1097 		udelay(5);
1098 		d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1099 		barrier();
1100 	}
1101 
1102 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1103 
1104 	if (IS_NOPOLLING_TYPE(ha))
1105 		ha->isp_ops->enable_intrs(ha);
1106 }
1107 
1108 static void
1109 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
1110 {
1111 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
1112 
1113 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
1114 	*data = RD_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET);
1115 
1116 }
1117 
1118 static void
1119 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
1120 {
1121 	struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
1122 
1123 	WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
1124 	WRT_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET, data);
1125 }
1126 
1127 static void
1128 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
1129 {
1130 	struct qla_hw_data *ha = vha->hw;
1131 	uint32_t wd32 = 0;
1132 	uint delta_msec = 100;
1133 	uint elapsed_msec = 0;
1134 	uint timeout_msec;
1135 	ulong n;
1136 
1137 	if (!IS_QLA25XX(ha) && !IS_QLA2031(ha))
1138 		return;
1139 
1140 attempt:
1141 	timeout_msec = TIMEOUT_SEMAPHORE;
1142 	n = timeout_msec / delta_msec;
1143 	while (n--) {
1144 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
1145 		qla25xx_read_risc_sema_reg(vha, &wd32);
1146 		if (wd32 & RISC_SEMAPHORE)
1147 			break;
1148 		msleep(delta_msec);
1149 		elapsed_msec += delta_msec;
1150 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
1151 			goto force;
1152 	}
1153 
1154 	if (!(wd32 & RISC_SEMAPHORE))
1155 		goto force;
1156 
1157 	if (!(wd32 & RISC_SEMAPHORE_FORCE))
1158 		goto acquired;
1159 
1160 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
1161 	timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
1162 	n = timeout_msec / delta_msec;
1163 	while (n--) {
1164 		qla25xx_read_risc_sema_reg(vha, &wd32);
1165 		if (!(wd32 & RISC_SEMAPHORE_FORCE))
1166 			break;
1167 		msleep(delta_msec);
1168 		elapsed_msec += delta_msec;
1169 		if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
1170 			goto force;
1171 	}
1172 
1173 	if (wd32 & RISC_SEMAPHORE_FORCE)
1174 		qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
1175 
1176 	goto attempt;
1177 
1178 force:
1179 	qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
1180 
1181 acquired:
1182 	return;
1183 }
1184 
1185 /**
1186  * qla24xx_reset_chip() - Reset ISP24xx chip.
1187  * @ha: HA context
1188  *
1189  * Returns 0 on success.
1190  */
1191 void
1192 qla24xx_reset_chip(scsi_qla_host_t *vha)
1193 {
1194 	struct qla_hw_data *ha = vha->hw;
1195 
1196 	if (pci_channel_offline(ha->pdev) &&
1197 	    ha->flags.pci_channel_io_perm_failure) {
1198 		return;
1199 	}
1200 
1201 	ha->isp_ops->disable_intrs(ha);
1202 
1203 	qla25xx_manipulate_risc_semaphore(vha);
1204 
1205 	/* Perform RISC reset. */
1206 	qla24xx_reset_risc(vha);
1207 }
1208 
1209 /**
1210  * qla2x00_chip_diag() - Test chip for proper operation.
1211  * @ha: HA context
1212  *
1213  * Returns 0 on success.
1214  */
1215 int
1216 qla2x00_chip_diag(scsi_qla_host_t *vha)
1217 {
1218 	int		rval;
1219 	struct qla_hw_data *ha = vha->hw;
1220 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1221 	unsigned long	flags = 0;
1222 	uint16_t	data;
1223 	uint32_t	cnt;
1224 	uint16_t	mb[5];
1225 	struct req_que *req = ha->req_q_map[0];
1226 
1227 	/* Assume a failed state */
1228 	rval = QLA_FUNCTION_FAILED;
1229 
1230 	ql_dbg(ql_dbg_init, vha, 0x007b,
1231 	    "Testing device at %lx.\n", (u_long)&reg->flash_address);
1232 
1233 	spin_lock_irqsave(&ha->hardware_lock, flags);
1234 
1235 	/* Reset ISP chip. */
1236 	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1237 
1238 	/*
1239 	 * We need to have a delay here since the card will not respond while
1240 	 * in reset causing an MCA on some architectures.
1241 	 */
1242 	udelay(20);
1243 	data = qla2x00_debounce_register(&reg->ctrl_status);
1244 	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
1245 		udelay(5);
1246 		data = RD_REG_WORD(&reg->ctrl_status);
1247 		barrier();
1248 	}
1249 
1250 	if (!cnt)
1251 		goto chip_diag_failed;
1252 
1253 	ql_dbg(ql_dbg_init, vha, 0x007c,
1254 	    "Reset register cleared by chip reset.\n");
1255 
1256 	/* Reset RISC processor. */
1257 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
1258 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
1259 
1260 	/* Workaround for QLA2312 PCI parity error */
1261 	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1262 		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
1263 		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
1264 			udelay(5);
1265 			data = RD_MAILBOX_REG(ha, reg, 0);
1266 			barrier();
1267 		}
1268 	} else
1269 		udelay(10);
1270 
1271 	if (!cnt)
1272 		goto chip_diag_failed;
1273 
1274 	/* Check product ID of chip */
1275 	ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product Id of chip.\n");
1276 
1277 	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
1278 	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
1279 	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
1280 	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
1281 	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
1282 	    mb[3] != PROD_ID_3) {
1283 		ql_log(ql_log_warn, vha, 0x0062,
1284 		    "Wrong product ID = 0x%x,0x%x,0x%x.\n",
1285 		    mb[1], mb[2], mb[3]);
1286 
1287 		goto chip_diag_failed;
1288 	}
1289 	ha->product_id[0] = mb[1];
1290 	ha->product_id[1] = mb[2];
1291 	ha->product_id[2] = mb[3];
1292 	ha->product_id[3] = mb[4];
1293 
1294 	/* Adjust fw RISC transfer size */
1295 	if (req->length > 1024)
1296 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
1297 	else
1298 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
1299 		    req->length;
1300 
1301 	if (IS_QLA2200(ha) &&
1302 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
1303 		/* Limit firmware transfer size with a 2200A */
1304 		ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
1305 
1306 		ha->device_type |= DT_ISP2200A;
1307 		ha->fw_transfer_size = 128;
1308 	}
1309 
1310 	/* Wrap Incoming Mailboxes Test. */
1311 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1312 
1313 	ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
1314 	rval = qla2x00_mbx_reg_test(vha);
1315 	if (rval)
1316 		ql_log(ql_log_warn, vha, 0x0080,
1317 		    "Failed mailbox send register test.\n");
1318 	else
1319 		/* Flag a successful rval */
1320 		rval = QLA_SUCCESS;
1321 	spin_lock_irqsave(&ha->hardware_lock, flags);
1322 
1323 chip_diag_failed:
1324 	if (rval)
1325 		ql_log(ql_log_info, vha, 0x0081,
1326 		    "Chip diagnostics **** FAILED ****.\n");
1327 
1328 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1329 
1330 	return (rval);
1331 }
1332 
1333 /**
1334  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
1335  * @ha: HA context
1336  *
1337  * Returns 0 on success.
1338  */
1339 int
1340 qla24xx_chip_diag(scsi_qla_host_t *vha)
1341 {
1342 	int rval;
1343 	struct qla_hw_data *ha = vha->hw;
1344 	struct req_que *req = ha->req_q_map[0];
1345 
1346 	if (IS_P3P_TYPE(ha))
1347 		return QLA_SUCCESS;
1348 
1349 	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
1350 
1351 	rval = qla2x00_mbx_reg_test(vha);
1352 	if (rval) {
1353 		ql_log(ql_log_warn, vha, 0x0082,
1354 		    "Failed mailbox send register test.\n");
1355 	} else {
1356 		/* Flag a successful rval */
1357 		rval = QLA_SUCCESS;
1358 	}
1359 
1360 	return rval;
1361 }
1362 
1363 void
1364 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
1365 {
1366 	int rval;
1367 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
1368 	    eft_size, fce_size, mq_size;
1369 	dma_addr_t tc_dma;
1370 	void *tc;
1371 	struct qla_hw_data *ha = vha->hw;
1372 	struct req_que *req = ha->req_q_map[0];
1373 	struct rsp_que *rsp = ha->rsp_q_map[0];
1374 
1375 	if (ha->fw_dump) {
1376 		ql_dbg(ql_dbg_init, vha, 0x00bd,
1377 		    "Firmware dump already allocated.\n");
1378 		return;
1379 	}
1380 
1381 	ha->fw_dumped = 0;
1382 	fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
1383 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1384 		fixed_size = sizeof(struct qla2100_fw_dump);
1385 	} else if (IS_QLA23XX(ha)) {
1386 		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
1387 		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
1388 		    sizeof(uint16_t);
1389 	} else if (IS_FWI2_CAPABLE(ha)) {
1390 		if (IS_QLA83XX(ha))
1391 			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
1392 		else if (IS_QLA81XX(ha))
1393 			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
1394 		else if (IS_QLA25XX(ha))
1395 			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
1396 		else
1397 			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
1398 		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
1399 		    sizeof(uint32_t);
1400 		if (ha->mqenable) {
1401 			if (!IS_QLA83XX(ha))
1402 				mq_size = sizeof(struct qla2xxx_mq_chain);
1403 			/*
1404 			 * Allocate maximum buffer size for all queues.
1405 			 * Resizing must be done at end-of-dump processing.
1406 			 */
1407 			mq_size += ha->max_req_queues *
1408 			    (req->length * sizeof(request_t));
1409 			mq_size += ha->max_rsp_queues *
1410 			    (rsp->length * sizeof(response_t));
1411 		}
1412 		if (ha->tgt.atio_ring)
1413 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
1414 		/* Allocate memory for Fibre Channel Event Buffer. */
1415 		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
1416 			goto try_eft;
1417 
1418 		tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
1419 		    GFP_KERNEL);
1420 		if (!tc) {
1421 			ql_log(ql_log_warn, vha, 0x00be,
1422 			    "Unable to allocate (%d KB) for FCE.\n",
1423 			    FCE_SIZE / 1024);
1424 			goto try_eft;
1425 		}
1426 
1427 		memset(tc, 0, FCE_SIZE);
1428 		rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
1429 		    ha->fce_mb, &ha->fce_bufs);
1430 		if (rval) {
1431 			ql_log(ql_log_warn, vha, 0x00bf,
1432 			    "Unable to initialize FCE (%d).\n", rval);
1433 			dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
1434 			    tc_dma);
1435 			ha->flags.fce_enabled = 0;
1436 			goto try_eft;
1437 		}
1438 		ql_dbg(ql_dbg_init, vha, 0x00c0,
1439 		    "Allocate (%d KB) for FCE...\n", FCE_SIZE / 1024);
1440 
1441 		fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
1442 		ha->flags.fce_enabled = 1;
1443 		ha->fce_dma = tc_dma;
1444 		ha->fce = tc;
1445 try_eft:
1446 		/* Allocate memory for Extended Trace Buffer. */
1447 		tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
1448 		    GFP_KERNEL);
1449 		if (!tc) {
1450 			ql_log(ql_log_warn, vha, 0x00c1,
1451 			    "Unable to allocate (%d KB) for EFT.\n",
1452 			    EFT_SIZE / 1024);
1453 			goto cont_alloc;
1454 		}
1455 
1456 		memset(tc, 0, EFT_SIZE);
1457 		rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
1458 		if (rval) {
1459 			ql_log(ql_log_warn, vha, 0x00c2,
1460 			    "Unable to initialize EFT (%d).\n", rval);
1461 			dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
1462 			    tc_dma);
1463 			goto cont_alloc;
1464 		}
1465 		ql_dbg(ql_dbg_init, vha, 0x00c3,
1466 		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
1467 
1468 		eft_size = EFT_SIZE;
1469 		ha->eft_dma = tc_dma;
1470 		ha->eft = tc;
1471 	}
1472 cont_alloc:
1473 	req_q_size = req->length * sizeof(request_t);
1474 	rsp_q_size = rsp->length * sizeof(response_t);
1475 
1476 	dump_size = offsetof(struct qla2xxx_fw_dump, isp);
1477 	dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + eft_size;
1478 	ha->chain_offset = dump_size;
1479 	dump_size += mq_size + fce_size;
1480 
1481 	ha->fw_dump = vmalloc(dump_size);
1482 	if (!ha->fw_dump) {
1483 		ql_log(ql_log_warn, vha, 0x00c4,
1484 		    "Unable to allocate (%d KB) for firmware dump.\n",
1485 		    dump_size / 1024);
1486 
1487 		if (ha->fce) {
1488 			dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
1489 			    ha->fce_dma);
1490 			ha->fce = NULL;
1491 			ha->fce_dma = 0;
1492 		}
1493 
1494 		if (ha->eft) {
1495 			dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
1496 			    ha->eft_dma);
1497 			ha->eft = NULL;
1498 			ha->eft_dma = 0;
1499 		}
1500 		return;
1501 	}
1502 	ql_dbg(ql_dbg_init, vha, 0x00c5,
1503 	    "Allocated (%d KB) for firmware dump.\n", dump_size / 1024);
1504 
1505 	ha->fw_dump_len = dump_size;
1506 	ha->fw_dump->signature[0] = 'Q';
1507 	ha->fw_dump->signature[1] = 'L';
1508 	ha->fw_dump->signature[2] = 'G';
1509 	ha->fw_dump->signature[3] = 'C';
1510 	ha->fw_dump->version = __constant_htonl(1);
1511 
1512 	ha->fw_dump->fixed_size = htonl(fixed_size);
1513 	ha->fw_dump->mem_size = htonl(mem_size);
1514 	ha->fw_dump->req_q_size = htonl(req_q_size);
1515 	ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
1516 
1517 	ha->fw_dump->eft_size = htonl(eft_size);
1518 	ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
1519 	ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
1520 
1521 	ha->fw_dump->header_size =
1522 	    htonl(offsetof(struct qla2xxx_fw_dump, isp));
1523 }
1524 
1525 static int
1526 qla81xx_mpi_sync(scsi_qla_host_t *vha)
1527 {
1528 #define MPS_MASK	0xe0
1529 	int rval;
1530 	uint16_t dc;
1531 	uint32_t dw;
1532 
1533 	if (!IS_QLA81XX(vha->hw))
1534 		return QLA_SUCCESS;
1535 
1536 	rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
1537 	if (rval != QLA_SUCCESS) {
1538 		ql_log(ql_log_warn, vha, 0x0105,
1539 		    "Unable to acquire semaphore.\n");
1540 		goto done;
1541 	}
1542 
1543 	pci_read_config_word(vha->hw->pdev, 0x54, &dc);
1544 	rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
1545 	if (rval != QLA_SUCCESS) {
1546 		ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
1547 		goto done_release;
1548 	}
1549 
1550 	dc &= MPS_MASK;
1551 	if (dc == (dw & MPS_MASK))
1552 		goto done_release;
1553 
1554 	dw &= ~MPS_MASK;
1555 	dw |= dc;
1556 	rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
1557 	if (rval != QLA_SUCCESS) {
1558 		ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
1559 	}
1560 
1561 done_release:
1562 	rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
1563 	if (rval != QLA_SUCCESS) {
1564 		ql_log(ql_log_warn, vha, 0x006d,
1565 		    "Unable to release semaphore.\n");
1566 	}
1567 
1568 done:
1569 	return rval;
1570 }
1571 
1572 int
1573 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
1574 {
1575 	/* Don't try to reallocate the array */
1576 	if (req->outstanding_cmds)
1577 		return QLA_SUCCESS;
1578 
1579 	if (!IS_FWI2_CAPABLE(ha) || (ha->mqiobase &&
1580 	    (ql2xmultique_tag || ql2xmaxqueues > 1)))
1581 		req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
1582 	else {
1583 		if (ha->fw_xcb_count <= ha->fw_iocb_count)
1584 			req->num_outstanding_cmds = ha->fw_xcb_count;
1585 		else
1586 			req->num_outstanding_cmds = ha->fw_iocb_count;
1587 	}
1588 
1589 	req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
1590 	    req->num_outstanding_cmds, GFP_KERNEL);
1591 
1592 	if (!req->outstanding_cmds) {
1593 		/*
1594 		 * Try to allocate a minimal size just so we can get through
1595 		 * initialization.
1596 		 */
1597 		req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
1598 		req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
1599 		    req->num_outstanding_cmds, GFP_KERNEL);
1600 
1601 		if (!req->outstanding_cmds) {
1602 			ql_log(ql_log_fatal, NULL, 0x0126,
1603 			    "Failed to allocate memory for "
1604 			    "outstanding_cmds for req_que %p.\n", req);
1605 			req->num_outstanding_cmds = 0;
1606 			return QLA_FUNCTION_FAILED;
1607 		}
1608 	}
1609 
1610 	return QLA_SUCCESS;
1611 }
1612 
1613 /**
1614  * qla2x00_setup_chip() - Load and start RISC firmware.
1615  * @ha: HA context
1616  *
1617  * Returns 0 on success.
1618  */
1619 static int
1620 qla2x00_setup_chip(scsi_qla_host_t *vha)
1621 {
1622 	int rval;
1623 	uint32_t srisc_address = 0;
1624 	struct qla_hw_data *ha = vha->hw;
1625 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1626 	unsigned long flags;
1627 	uint16_t fw_major_version;
1628 
1629 	if (IS_P3P_TYPE(ha)) {
1630 		rval = ha->isp_ops->load_risc(vha, &srisc_address);
1631 		if (rval == QLA_SUCCESS) {
1632 			qla2x00_stop_firmware(vha);
1633 			goto enable_82xx_npiv;
1634 		} else
1635 			goto failed;
1636 	}
1637 
1638 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1639 		/* Disable SRAM, Instruction RAM and GP RAM parity.  */
1640 		spin_lock_irqsave(&ha->hardware_lock, flags);
1641 		WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
1642 		RD_REG_WORD(&reg->hccr);
1643 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1644 	}
1645 
1646 	qla81xx_mpi_sync(vha);
1647 
1648 	/* Load firmware sequences */
1649 	rval = ha->isp_ops->load_risc(vha, &srisc_address);
1650 	if (rval == QLA_SUCCESS) {
1651 		ql_dbg(ql_dbg_init, vha, 0x00c9,
1652 		    "Verifying Checksum of loaded RISC code.\n");
1653 
1654 		rval = qla2x00_verify_checksum(vha, srisc_address);
1655 		if (rval == QLA_SUCCESS) {
1656 			/* Start firmware execution. */
1657 			ql_dbg(ql_dbg_init, vha, 0x00ca,
1658 			    "Starting firmware.\n");
1659 
1660 			rval = qla2x00_execute_fw(vha, srisc_address);
1661 			/* Retrieve firmware information. */
1662 			if (rval == QLA_SUCCESS) {
1663 enable_82xx_npiv:
1664 				fw_major_version = ha->fw_major_version;
1665 				if (IS_P3P_TYPE(ha))
1666 					qla82xx_check_md_needed(vha);
1667 				else
1668 					rval = qla2x00_get_fw_version(vha);
1669 				if (rval != QLA_SUCCESS)
1670 					goto failed;
1671 				ha->flags.npiv_supported = 0;
1672 				if (IS_QLA2XXX_MIDTYPE(ha) &&
1673 					 (ha->fw_attributes & BIT_2)) {
1674 					ha->flags.npiv_supported = 1;
1675 					if ((!ha->max_npiv_vports) ||
1676 					    ((ha->max_npiv_vports + 1) %
1677 					    MIN_MULTI_ID_FABRIC))
1678 						ha->max_npiv_vports =
1679 						    MIN_MULTI_ID_FABRIC - 1;
1680 				}
1681 				qla2x00_get_resource_cnts(vha, NULL,
1682 				    &ha->fw_xcb_count, NULL, &ha->fw_iocb_count,
1683 				    &ha->max_npiv_vports, NULL);
1684 
1685 				/*
1686 				 * Allocate the array of outstanding commands
1687 				 * now that we know the firmware resources.
1688 				 */
1689 				rval = qla2x00_alloc_outstanding_cmds(ha,
1690 				    vha->req);
1691 				if (rval != QLA_SUCCESS)
1692 					goto failed;
1693 
1694 				if (!fw_major_version && ql2xallocfwdump
1695 				    && !(IS_P3P_TYPE(ha)))
1696 					qla2x00_alloc_fw_dump(vha);
1697 			}
1698 		} else {
1699 			ql_log(ql_log_fatal, vha, 0x00cd,
1700 			    "ISP Firmware failed checksum.\n");
1701 			goto failed;
1702 		}
1703 	} else
1704 		goto failed;
1705 
1706 	if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1707 		/* Enable proper parity. */
1708 		spin_lock_irqsave(&ha->hardware_lock, flags);
1709 		if (IS_QLA2300(ha))
1710 			/* SRAM parity */
1711 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
1712 		else
1713 			/* SRAM, Instruction RAM and GP RAM parity */
1714 			WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
1715 		RD_REG_WORD(&reg->hccr);
1716 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
1717 	}
1718 
1719 	if (IS_QLA83XX(ha))
1720 		goto skip_fac_check;
1721 
1722 	if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
1723 		uint32_t size;
1724 
1725 		rval = qla81xx_fac_get_sector_size(vha, &size);
1726 		if (rval == QLA_SUCCESS) {
1727 			ha->flags.fac_supported = 1;
1728 			ha->fdt_block_size = size << 2;
1729 		} else {
1730 			ql_log(ql_log_warn, vha, 0x00ce,
1731 			    "Unsupported FAC firmware (%d.%02d.%02d).\n",
1732 			    ha->fw_major_version, ha->fw_minor_version,
1733 			    ha->fw_subminor_version);
1734 skip_fac_check:
1735 			if (IS_QLA83XX(ha)) {
1736 				ha->flags.fac_supported = 0;
1737 				rval = QLA_SUCCESS;
1738 			}
1739 		}
1740 	}
1741 failed:
1742 	if (rval) {
1743 		ql_log(ql_log_fatal, vha, 0x00cf,
1744 		    "Setup chip ****FAILED****.\n");
1745 	}
1746 
1747 	return (rval);
1748 }
1749 
1750 /**
1751  * qla2x00_init_response_q_entries() - Initializes response queue entries.
1752  * @ha: HA context
1753  *
1754  * Beginning of request ring has initialization control block already built
1755  * by nvram config routine.
1756  *
1757  * Returns 0 on success.
1758  */
1759 void
1760 qla2x00_init_response_q_entries(struct rsp_que *rsp)
1761 {
1762 	uint16_t cnt;
1763 	response_t *pkt;
1764 
1765 	rsp->ring_ptr = rsp->ring;
1766 	rsp->ring_index    = 0;
1767 	rsp->status_srb = NULL;
1768 	pkt = rsp->ring_ptr;
1769 	for (cnt = 0; cnt < rsp->length; cnt++) {
1770 		pkt->signature = RESPONSE_PROCESSED;
1771 		pkt++;
1772 	}
1773 }
1774 
1775 /**
1776  * qla2x00_update_fw_options() - Read and process firmware options.
1777  * @ha: HA context
1778  *
1779  * Returns 0 on success.
1780  */
1781 void
1782 qla2x00_update_fw_options(scsi_qla_host_t *vha)
1783 {
1784 	uint16_t swing, emphasis, tx_sens, rx_sens;
1785 	struct qla_hw_data *ha = vha->hw;
1786 
1787 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
1788 	qla2x00_get_fw_options(vha, ha->fw_options);
1789 
1790 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
1791 		return;
1792 
1793 	/* Serial Link options. */
1794 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
1795 	    "Serial link options.\n");
1796 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
1797 	    (uint8_t *)&ha->fw_seriallink_options,
1798 	    sizeof(ha->fw_seriallink_options));
1799 
1800 	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1801 	if (ha->fw_seriallink_options[3] & BIT_2) {
1802 		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1803 
1804 		/*  1G settings */
1805 		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1806 		emphasis = (ha->fw_seriallink_options[2] &
1807 		    (BIT_4 | BIT_3)) >> 3;
1808 		tx_sens = ha->fw_seriallink_options[0] &
1809 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1810 		rx_sens = (ha->fw_seriallink_options[0] &
1811 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1812 		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1813 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1814 			if (rx_sens == 0x0)
1815 				rx_sens = 0x3;
1816 			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1817 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1818 			ha->fw_options[10] |= BIT_5 |
1819 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1820 			    (tx_sens & (BIT_1 | BIT_0));
1821 
1822 		/*  2G settings */
1823 		swing = (ha->fw_seriallink_options[2] &
1824 		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
1825 		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1826 		tx_sens = ha->fw_seriallink_options[1] &
1827 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1828 		rx_sens = (ha->fw_seriallink_options[1] &
1829 		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1830 		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1831 		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1832 			if (rx_sens == 0x0)
1833 				rx_sens = 0x3;
1834 			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1835 		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1836 			ha->fw_options[11] |= BIT_5 |
1837 			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1838 			    (tx_sens & (BIT_1 | BIT_0));
1839 	}
1840 
1841 	/* FCP2 options. */
1842 	/*  Return command IOCBs without waiting for an ABTS to complete. */
1843 	ha->fw_options[3] |= BIT_13;
1844 
1845 	/* LED scheme. */
1846 	if (ha->flags.enable_led_scheme)
1847 		ha->fw_options[2] |= BIT_12;
1848 
1849 	/* Detect ISP6312. */
1850 	if (IS_QLA6312(ha))
1851 		ha->fw_options[2] |= BIT_13;
1852 
1853 	/* Update firmware options. */
1854 	qla2x00_set_fw_options(vha, ha->fw_options);
1855 }
1856 
1857 void
1858 qla24xx_update_fw_options(scsi_qla_host_t *vha)
1859 {
1860 	int rval;
1861 	struct qla_hw_data *ha = vha->hw;
1862 
1863 	if (IS_P3P_TYPE(ha))
1864 		return;
1865 
1866 	/* Update Serial Link options. */
1867 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1868 		return;
1869 
1870 	rval = qla2x00_set_serdes_params(vha,
1871 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
1872 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
1873 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
1874 	if (rval != QLA_SUCCESS) {
1875 		ql_log(ql_log_warn, vha, 0x0104,
1876 		    "Unable to update Serial Link options (%x).\n", rval);
1877 	}
1878 }
1879 
1880 void
1881 qla2x00_config_rings(struct scsi_qla_host *vha)
1882 {
1883 	struct qla_hw_data *ha = vha->hw;
1884 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1885 	struct req_que *req = ha->req_q_map[0];
1886 	struct rsp_que *rsp = ha->rsp_q_map[0];
1887 
1888 	/* Setup ring parameters in initialization control block. */
1889 	ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1890 	ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1891 	ha->init_cb->request_q_length = cpu_to_le16(req->length);
1892 	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
1893 	ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1894 	ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1895 	ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1896 	ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1897 
1898 	WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1899 	WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1900 	WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1901 	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1902 	RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
1903 }
1904 
1905 void
1906 qla24xx_config_rings(struct scsi_qla_host *vha)
1907 {
1908 	struct qla_hw_data *ha = vha->hw;
1909 	device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0);
1910 	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
1911 	struct qla_msix_entry *msix;
1912 	struct init_cb_24xx *icb;
1913 	uint16_t rid = 0;
1914 	struct req_que *req = ha->req_q_map[0];
1915 	struct rsp_que *rsp = ha->rsp_q_map[0];
1916 
1917 	/* Setup ring parameters in initialization control block. */
1918 	icb = (struct init_cb_24xx *)ha->init_cb;
1919 	icb->request_q_outpointer = __constant_cpu_to_le16(0);
1920 	icb->response_q_inpointer = __constant_cpu_to_le16(0);
1921 	icb->request_q_length = cpu_to_le16(req->length);
1922 	icb->response_q_length = cpu_to_le16(rsp->length);
1923 	icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1924 	icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1925 	icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1926 	icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1927 
1928 	/* Setup ATIO queue dma pointers for target mode */
1929 	icb->atio_q_inpointer = __constant_cpu_to_le16(0);
1930 	icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
1931 	icb->atio_q_address[0] = cpu_to_le32(LSD(ha->tgt.atio_dma));
1932 	icb->atio_q_address[1] = cpu_to_le32(MSD(ha->tgt.atio_dma));
1933 
1934 	if (ha->mqenable || IS_QLA83XX(ha)) {
1935 		icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
1936 		icb->rid = __constant_cpu_to_le16(rid);
1937 		if (ha->flags.msix_enabled) {
1938 			msix = &ha->msix_entries[1];
1939 			ql_dbg(ql_dbg_init, vha, 0x00fd,
1940 			    "Registering vector 0x%x for base que.\n",
1941 			    msix->entry);
1942 			icb->msix = cpu_to_le16(msix->entry);
1943 		}
1944 		/* Use alternate PCI bus number */
1945 		if (MSB(rid))
1946 			icb->firmware_options_2 |=
1947 				__constant_cpu_to_le32(BIT_19);
1948 		/* Use alternate PCI devfn */
1949 		if (LSB(rid))
1950 			icb->firmware_options_2 |=
1951 				__constant_cpu_to_le32(BIT_18);
1952 
1953 		/* Use Disable MSIX Handshake mode for capable adapters */
1954 		if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
1955 		    (ha->flags.msix_enabled)) {
1956 			icb->firmware_options_2 &=
1957 				__constant_cpu_to_le32(~BIT_22);
1958 			ha->flags.disable_msix_handshake = 1;
1959 			ql_dbg(ql_dbg_init, vha, 0x00fe,
1960 			    "MSIX Handshake Disable Mode turned on.\n");
1961 		} else {
1962 			icb->firmware_options_2 |=
1963 				__constant_cpu_to_le32(BIT_22);
1964 		}
1965 		icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23);
1966 
1967 		WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
1968 		WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
1969 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
1970 		WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
1971 	} else {
1972 		WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
1973 		WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
1974 		WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
1975 		WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
1976 	}
1977 	qlt_24xx_config_rings(vha);
1978 
1979 	/* PCI posting */
1980 	RD_REG_DWORD(&ioreg->hccr);
1981 }
1982 
1983 /**
1984  * qla2x00_init_rings() - Initializes firmware.
1985  * @ha: HA context
1986  *
1987  * Beginning of request ring has initialization control block already built
1988  * by nvram config routine.
1989  *
1990  * Returns 0 on success.
1991  */
1992 int
1993 qla2x00_init_rings(scsi_qla_host_t *vha)
1994 {
1995 	int	rval;
1996 	unsigned long flags = 0;
1997 	int cnt, que;
1998 	struct qla_hw_data *ha = vha->hw;
1999 	struct req_que *req;
2000 	struct rsp_que *rsp;
2001 	struct mid_init_cb_24xx *mid_init_cb =
2002 	    (struct mid_init_cb_24xx *) ha->init_cb;
2003 
2004 	spin_lock_irqsave(&ha->hardware_lock, flags);
2005 
2006 	/* Clear outstanding commands array. */
2007 	for (que = 0; que < ha->max_req_queues; que++) {
2008 		req = ha->req_q_map[que];
2009 		if (!req)
2010 			continue;
2011 		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
2012 			req->outstanding_cmds[cnt] = NULL;
2013 
2014 		req->current_outstanding_cmd = 1;
2015 
2016 		/* Initialize firmware. */
2017 		req->ring_ptr  = req->ring;
2018 		req->ring_index    = 0;
2019 		req->cnt      = req->length;
2020 	}
2021 
2022 	for (que = 0; que < ha->max_rsp_queues; que++) {
2023 		rsp = ha->rsp_q_map[que];
2024 		if (!rsp)
2025 			continue;
2026 		/* Initialize response queue entries */
2027 		if (IS_QLAFX00(ha))
2028 			qlafx00_init_response_q_entries(rsp);
2029 		else
2030 			qla2x00_init_response_q_entries(rsp);
2031 	}
2032 
2033 	ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
2034 	ha->tgt.atio_ring_index = 0;
2035 	/* Initialize ATIO queue entries */
2036 	qlt_init_atio_q_entries(vha);
2037 
2038 	ha->isp_ops->config_rings(vha);
2039 
2040 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
2041 
2042 	ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
2043 
2044 	if (IS_QLAFX00(ha)) {
2045 		rval = qlafx00_init_firmware(vha, ha->init_cb_size);
2046 		goto next_check;
2047 	}
2048 
2049 	/* Update any ISP specific firmware options before initialization. */
2050 	ha->isp_ops->update_fw_options(vha);
2051 
2052 	if (ha->flags.npiv_supported) {
2053 		if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
2054 			ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
2055 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
2056 	}
2057 
2058 	if (IS_FWI2_CAPABLE(ha)) {
2059 		mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
2060 		mid_init_cb->init_cb.execution_throttle =
2061 		    cpu_to_le16(ha->fw_xcb_count);
2062 	}
2063 
2064 	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
2065 next_check:
2066 	if (rval) {
2067 		ql_log(ql_log_fatal, vha, 0x00d2,
2068 		    "Init Firmware **** FAILED ****.\n");
2069 	} else {
2070 		ql_dbg(ql_dbg_init, vha, 0x00d3,
2071 		    "Init Firmware -- success.\n");
2072 	}
2073 
2074 	return (rval);
2075 }
2076 
2077 /**
2078  * qla2x00_fw_ready() - Waits for firmware ready.
2079  * @ha: HA context
2080  *
2081  * Returns 0 on success.
2082  */
2083 static int
2084 qla2x00_fw_ready(scsi_qla_host_t *vha)
2085 {
2086 	int		rval;
2087 	unsigned long	wtime, mtime, cs84xx_time;
2088 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
2089 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
2090 	uint16_t	state[5];
2091 	struct qla_hw_data *ha = vha->hw;
2092 
2093 	if (IS_QLAFX00(vha->hw))
2094 		return qlafx00_fw_ready(vha);
2095 
2096 	rval = QLA_SUCCESS;
2097 
2098 	/* 20 seconds for loop down. */
2099 	min_wait = 20;
2100 
2101 	/*
2102 	 * Firmware should take at most one RATOV to login, plus 5 seconds for
2103 	 * our own processing.
2104 	 */
2105 	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
2106 		wait_time = min_wait;
2107 	}
2108 
2109 	/* Min wait time if loop down */
2110 	mtime = jiffies + (min_wait * HZ);
2111 
2112 	/* wait time before firmware ready */
2113 	wtime = jiffies + (wait_time * HZ);
2114 
2115 	/* Wait for ISP to finish LIP */
2116 	if (!vha->flags.init_done)
2117 		ql_log(ql_log_info, vha, 0x801e,
2118 		    "Waiting for LIP to complete.\n");
2119 
2120 	do {
2121 		memset(state, -1, sizeof(state));
2122 		rval = qla2x00_get_firmware_state(vha, state);
2123 		if (rval == QLA_SUCCESS) {
2124 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
2125 				vha->device_flags &= ~DFLG_NO_CABLE;
2126 			}
2127 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
2128 				ql_dbg(ql_dbg_taskm, vha, 0x801f,
2129 				    "fw_state=%x 84xx=%x.\n", state[0],
2130 				    state[2]);
2131 				if ((state[2] & FSTATE_LOGGED_IN) &&
2132 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
2133 					ql_dbg(ql_dbg_taskm, vha, 0x8028,
2134 					    "Sending verify iocb.\n");
2135 
2136 					cs84xx_time = jiffies;
2137 					rval = qla84xx_init_chip(vha);
2138 					if (rval != QLA_SUCCESS) {
2139 						ql_log(ql_log_warn,
2140 						    vha, 0x8007,
2141 						    "Init chip failed.\n");
2142 						break;
2143 					}
2144 
2145 					/* Add time taken to initialize. */
2146 					cs84xx_time = jiffies - cs84xx_time;
2147 					wtime += cs84xx_time;
2148 					mtime += cs84xx_time;
2149 					ql_dbg(ql_dbg_taskm, vha, 0x8008,
2150 					    "Increasing wait time by %ld. "
2151 					    "New time %ld.\n", cs84xx_time,
2152 					    wtime);
2153 				}
2154 			} else if (state[0] == FSTATE_READY) {
2155 				ql_dbg(ql_dbg_taskm, vha, 0x8037,
2156 				    "F/W Ready - OK.\n");
2157 
2158 				qla2x00_get_retry_cnt(vha, &ha->retry_count,
2159 				    &ha->login_timeout, &ha->r_a_tov);
2160 
2161 				rval = QLA_SUCCESS;
2162 				break;
2163 			}
2164 
2165 			rval = QLA_FUNCTION_FAILED;
2166 
2167 			if (atomic_read(&vha->loop_down_timer) &&
2168 			    state[0] != FSTATE_READY) {
2169 				/* Loop down. Timeout on min_wait for states
2170 				 * other than Wait for Login.
2171 				 */
2172 				if (time_after_eq(jiffies, mtime)) {
2173 					ql_log(ql_log_info, vha, 0x8038,
2174 					    "Cable is unplugged...\n");
2175 
2176 					vha->device_flags |= DFLG_NO_CABLE;
2177 					break;
2178 				}
2179 			}
2180 		} else {
2181 			/* Mailbox cmd failed. Timeout on min_wait. */
2182 			if (time_after_eq(jiffies, mtime) ||
2183 				ha->flags.isp82xx_fw_hung)
2184 				break;
2185 		}
2186 
2187 		if (time_after_eq(jiffies, wtime))
2188 			break;
2189 
2190 		/* Delay for a while */
2191 		msleep(500);
2192 	} while (1);
2193 
2194 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
2195 	    "fw_state=%x (%x, %x, %x, %x) " "curr time=%lx.\n", state[0],
2196 	    state[1], state[2], state[3], state[4], jiffies);
2197 
2198 	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
2199 		ql_log(ql_log_warn, vha, 0x803b,
2200 		    "Firmware ready **** FAILED ****.\n");
2201 	}
2202 
2203 	return (rval);
2204 }
2205 
2206 /*
2207 *  qla2x00_configure_hba
2208 *      Setup adapter context.
2209 *
2210 * Input:
2211 *      ha = adapter state pointer.
2212 *
2213 * Returns:
2214 *      0 = success
2215 *
2216 * Context:
2217 *      Kernel context.
2218 */
2219 static int
2220 qla2x00_configure_hba(scsi_qla_host_t *vha)
2221 {
2222 	int       rval;
2223 	uint16_t      loop_id;
2224 	uint16_t      topo;
2225 	uint16_t      sw_cap;
2226 	uint8_t       al_pa;
2227 	uint8_t       area;
2228 	uint8_t       domain;
2229 	char		connect_type[22];
2230 	struct qla_hw_data *ha = vha->hw;
2231 	unsigned long flags;
2232 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
2233 
2234 	/* Get host addresses. */
2235 	rval = qla2x00_get_adapter_id(vha,
2236 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
2237 	if (rval != QLA_SUCCESS) {
2238 		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
2239 		    IS_CNA_CAPABLE(ha) ||
2240 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
2241 			ql_dbg(ql_dbg_disc, vha, 0x2008,
2242 			    "Loop is in a transition state.\n");
2243 		} else {
2244 			ql_log(ql_log_warn, vha, 0x2009,
2245 			    "Unable to get host loop ID.\n");
2246 			if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
2247 			    (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
2248 				ql_log(ql_log_warn, vha, 0x1151,
2249 				    "Doing link init.\n");
2250 				if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
2251 					return rval;
2252 			}
2253 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2254 		}
2255 		return (rval);
2256 	}
2257 
2258 	if (topo == 4) {
2259 		ql_log(ql_log_info, vha, 0x200a,
2260 		    "Cannot get topology - retrying.\n");
2261 		return (QLA_FUNCTION_FAILED);
2262 	}
2263 
2264 	vha->loop_id = loop_id;
2265 
2266 	/* initialize */
2267 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
2268 	ha->operating_mode = LOOP;
2269 	ha->switch_cap = 0;
2270 
2271 	switch (topo) {
2272 	case 0:
2273 		ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
2274 		ha->current_topology = ISP_CFG_NL;
2275 		strcpy(connect_type, "(Loop)");
2276 		break;
2277 
2278 	case 1:
2279 		ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
2280 		ha->switch_cap = sw_cap;
2281 		ha->current_topology = ISP_CFG_FL;
2282 		strcpy(connect_type, "(FL_Port)");
2283 		break;
2284 
2285 	case 2:
2286 		ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
2287 		ha->operating_mode = P2P;
2288 		ha->current_topology = ISP_CFG_N;
2289 		strcpy(connect_type, "(N_Port-to-N_Port)");
2290 		break;
2291 
2292 	case 3:
2293 		ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
2294 		ha->switch_cap = sw_cap;
2295 		ha->operating_mode = P2P;
2296 		ha->current_topology = ISP_CFG_F;
2297 		strcpy(connect_type, "(F_Port)");
2298 		break;
2299 
2300 	default:
2301 		ql_dbg(ql_dbg_disc, vha, 0x200f,
2302 		    "HBA in unknown topology %x, using NL.\n", topo);
2303 		ha->current_topology = ISP_CFG_NL;
2304 		strcpy(connect_type, "(Loop)");
2305 		break;
2306 	}
2307 
2308 	/* Save Host port and loop ID. */
2309 	/* byte order - Big Endian */
2310 	vha->d_id.b.domain = domain;
2311 	vha->d_id.b.area = area;
2312 	vha->d_id.b.al_pa = al_pa;
2313 
2314 	spin_lock_irqsave(&ha->vport_slock, flags);
2315 	qlt_update_vp_map(vha, SET_AL_PA);
2316 	spin_unlock_irqrestore(&ha->vport_slock, flags);
2317 
2318 	if (!vha->flags.init_done)
2319 		ql_log(ql_log_info, vha, 0x2010,
2320 		    "Topology - %s, Host Loop address 0x%x.\n",
2321 		    connect_type, vha->loop_id);
2322 
2323 	return(rval);
2324 }
2325 
2326 inline void
2327 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
2328 	char *def)
2329 {
2330 	char *st, *en;
2331 	uint16_t index;
2332 	struct qla_hw_data *ha = vha->hw;
2333 	int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
2334 	    !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
2335 
2336 	if (memcmp(model, BINZERO, len) != 0) {
2337 		strncpy(ha->model_number, model, len);
2338 		st = en = ha->model_number;
2339 		en += len - 1;
2340 		while (en > st) {
2341 			if (*en != 0x20 && *en != 0x00)
2342 				break;
2343 			*en-- = '\0';
2344 		}
2345 
2346 		index = (ha->pdev->subsystem_device & 0xff);
2347 		if (use_tbl &&
2348 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
2349 		    index < QLA_MODEL_NAMES)
2350 			strncpy(ha->model_desc,
2351 			    qla2x00_model_name[index * 2 + 1],
2352 			    sizeof(ha->model_desc) - 1);
2353 	} else {
2354 		index = (ha->pdev->subsystem_device & 0xff);
2355 		if (use_tbl &&
2356 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
2357 		    index < QLA_MODEL_NAMES) {
2358 			strcpy(ha->model_number,
2359 			    qla2x00_model_name[index * 2]);
2360 			strncpy(ha->model_desc,
2361 			    qla2x00_model_name[index * 2 + 1],
2362 			    sizeof(ha->model_desc) - 1);
2363 		} else {
2364 			strcpy(ha->model_number, def);
2365 		}
2366 	}
2367 	if (IS_FWI2_CAPABLE(ha))
2368 		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
2369 		    sizeof(ha->model_desc));
2370 }
2371 
2372 /* On sparc systems, obtain port and node WWN from firmware
2373  * properties.
2374  */
2375 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
2376 {
2377 #ifdef CONFIG_SPARC
2378 	struct qla_hw_data *ha = vha->hw;
2379 	struct pci_dev *pdev = ha->pdev;
2380 	struct device_node *dp = pci_device_to_OF_node(pdev);
2381 	const u8 *val;
2382 	int len;
2383 
2384 	val = of_get_property(dp, "port-wwn", &len);
2385 	if (val && len >= WWN_SIZE)
2386 		memcpy(nv->port_name, val, WWN_SIZE);
2387 
2388 	val = of_get_property(dp, "node-wwn", &len);
2389 	if (val && len >= WWN_SIZE)
2390 		memcpy(nv->node_name, val, WWN_SIZE);
2391 #endif
2392 }
2393 
2394 /*
2395 * NVRAM configuration for ISP 2xxx
2396 *
2397 * Input:
2398 *      ha                = adapter block pointer.
2399 *
2400 * Output:
2401 *      initialization control block in response_ring
2402 *      host adapters parameters in host adapter block
2403 *
2404 * Returns:
2405 *      0 = success.
2406 */
2407 int
2408 qla2x00_nvram_config(scsi_qla_host_t *vha)
2409 {
2410 	int             rval;
2411 	uint8_t         chksum = 0;
2412 	uint16_t        cnt;
2413 	uint8_t         *dptr1, *dptr2;
2414 	struct qla_hw_data *ha = vha->hw;
2415 	init_cb_t       *icb = ha->init_cb;
2416 	nvram_t         *nv = ha->nvram;
2417 	uint8_t         *ptr = ha->nvram;
2418 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2419 
2420 	rval = QLA_SUCCESS;
2421 
2422 	/* Determine NVRAM starting address. */
2423 	ha->nvram_size = sizeof(nvram_t);
2424 	ha->nvram_base = 0;
2425 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
2426 		if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
2427 			ha->nvram_base = 0x80;
2428 
2429 	/* Get NVRAM data and calculate checksum. */
2430 	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
2431 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
2432 		chksum += *ptr++;
2433 
2434 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
2435 	    "Contents of NVRAM.\n");
2436 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
2437 	    (uint8_t *)nv, ha->nvram_size);
2438 
2439 	/* Bad NVRAM data, set defaults parameters. */
2440 	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
2441 	    nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
2442 		/* Reset NVRAM data. */
2443 		ql_log(ql_log_warn, vha, 0x0064,
2444 		    "Inconsistent NVRAM "
2445 		    "detected: checksum=0x%x id=%c version=0x%x.\n",
2446 		    chksum, nv->id[0], nv->nvram_version);
2447 		ql_log(ql_log_warn, vha, 0x0065,
2448 		    "Falling back to "
2449 		    "functioning (yet invalid -- WWPN) defaults.\n");
2450 
2451 		/*
2452 		 * Set default initialization control block.
2453 		 */
2454 		memset(nv, 0, ha->nvram_size);
2455 		nv->parameter_block_version = ICB_VERSION;
2456 
2457 		if (IS_QLA23XX(ha)) {
2458 			nv->firmware_options[0] = BIT_2 | BIT_1;
2459 			nv->firmware_options[1] = BIT_7 | BIT_5;
2460 			nv->add_firmware_options[0] = BIT_5;
2461 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
2462 			nv->frame_payload_size = __constant_cpu_to_le16(2048);
2463 			nv->special_options[1] = BIT_7;
2464 		} else if (IS_QLA2200(ha)) {
2465 			nv->firmware_options[0] = BIT_2 | BIT_1;
2466 			nv->firmware_options[1] = BIT_7 | BIT_5;
2467 			nv->add_firmware_options[0] = BIT_5;
2468 			nv->add_firmware_options[1] = BIT_5 | BIT_4;
2469 			nv->frame_payload_size = __constant_cpu_to_le16(1024);
2470 		} else if (IS_QLA2100(ha)) {
2471 			nv->firmware_options[0] = BIT_3 | BIT_1;
2472 			nv->firmware_options[1] = BIT_5;
2473 			nv->frame_payload_size = __constant_cpu_to_le16(1024);
2474 		}
2475 
2476 		nv->max_iocb_allocation = __constant_cpu_to_le16(256);
2477 		nv->execution_throttle = __constant_cpu_to_le16(16);
2478 		nv->retry_count = 8;
2479 		nv->retry_delay = 1;
2480 
2481 		nv->port_name[0] = 33;
2482 		nv->port_name[3] = 224;
2483 		nv->port_name[4] = 139;
2484 
2485 		qla2xxx_nvram_wwn_from_ofw(vha, nv);
2486 
2487 		nv->login_timeout = 4;
2488 
2489 		/*
2490 		 * Set default host adapter parameters
2491 		 */
2492 		nv->host_p[1] = BIT_2;
2493 		nv->reset_delay = 5;
2494 		nv->port_down_retry_count = 8;
2495 		nv->max_luns_per_target = __constant_cpu_to_le16(8);
2496 		nv->link_down_timeout = 60;
2497 
2498 		rval = 1;
2499 	}
2500 
2501 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2502 	/*
2503 	 * The SN2 does not provide BIOS emulation which means you can't change
2504 	 * potentially bogus BIOS settings. Force the use of default settings
2505 	 * for link rate and frame size.  Hope that the rest of the settings
2506 	 * are valid.
2507 	 */
2508 	if (ia64_platform_is("sn2")) {
2509 		nv->frame_payload_size = __constant_cpu_to_le16(2048);
2510 		if (IS_QLA23XX(ha))
2511 			nv->special_options[1] = BIT_7;
2512 	}
2513 #endif
2514 
2515 	/* Reset Initialization control block */
2516 	memset(icb, 0, ha->init_cb_size);
2517 
2518 	/*
2519 	 * Setup driver NVRAM options.
2520 	 */
2521 	nv->firmware_options[0] |= (BIT_6 | BIT_1);
2522 	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
2523 	nv->firmware_options[1] |= (BIT_5 | BIT_0);
2524 	nv->firmware_options[1] &= ~BIT_4;
2525 
2526 	if (IS_QLA23XX(ha)) {
2527 		nv->firmware_options[0] |= BIT_2;
2528 		nv->firmware_options[0] &= ~BIT_3;
2529 		nv->special_options[0] &= ~BIT_6;
2530 		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
2531 
2532 		if (IS_QLA2300(ha)) {
2533 			if (ha->fb_rev == FPM_2310) {
2534 				strcpy(ha->model_number, "QLA2310");
2535 			} else {
2536 				strcpy(ha->model_number, "QLA2300");
2537 			}
2538 		} else {
2539 			qla2x00_set_model_info(vha, nv->model_number,
2540 			    sizeof(nv->model_number), "QLA23xx");
2541 		}
2542 	} else if (IS_QLA2200(ha)) {
2543 		nv->firmware_options[0] |= BIT_2;
2544 		/*
2545 		 * 'Point-to-point preferred, else loop' is not a safe
2546 		 * connection mode setting.
2547 		 */
2548 		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
2549 		    (BIT_5 | BIT_4)) {
2550 			/* Force 'loop preferred, else point-to-point'. */
2551 			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
2552 			nv->add_firmware_options[0] |= BIT_5;
2553 		}
2554 		strcpy(ha->model_number, "QLA22xx");
2555 	} else /*if (IS_QLA2100(ha))*/ {
2556 		strcpy(ha->model_number, "QLA2100");
2557 	}
2558 
2559 	/*
2560 	 * Copy over NVRAM RISC parameter block to initialization control block.
2561 	 */
2562 	dptr1 = (uint8_t *)icb;
2563 	dptr2 = (uint8_t *)&nv->parameter_block_version;
2564 	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
2565 	while (cnt--)
2566 		*dptr1++ = *dptr2++;
2567 
2568 	/* Copy 2nd half. */
2569 	dptr1 = (uint8_t *)icb->add_firmware_options;
2570 	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
2571 	while (cnt--)
2572 		*dptr1++ = *dptr2++;
2573 
2574 	/* Use alternate WWN? */
2575 	if (nv->host_p[1] & BIT_7) {
2576 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
2577 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
2578 	}
2579 
2580 	/* Prepare nodename */
2581 	if ((icb->firmware_options[1] & BIT_6) == 0) {
2582 		/*
2583 		 * Firmware will apply the following mask if the nodename was
2584 		 * not provided.
2585 		 */
2586 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
2587 		icb->node_name[0] &= 0xF0;
2588 	}
2589 
2590 	/*
2591 	 * Set host adapter parameters.
2592 	 */
2593 
2594 	/*
2595 	 * BIT_7 in the host-parameters section allows for modification to
2596 	 * internal driver logging.
2597 	 */
2598 	if (nv->host_p[0] & BIT_7)
2599 		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
2600 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
2601 	/* Always load RISC code on non ISP2[12]00 chips. */
2602 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2603 		ha->flags.disable_risc_code_load = 0;
2604 	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
2605 	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
2606 	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
2607 	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
2608 	ha->flags.disable_serdes = 0;
2609 
2610 	ha->operating_mode =
2611 	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
2612 
2613 	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
2614 	    sizeof(ha->fw_seriallink_options));
2615 
2616 	/* save HBA serial number */
2617 	ha->serial0 = icb->port_name[5];
2618 	ha->serial1 = icb->port_name[6];
2619 	ha->serial2 = icb->port_name[7];
2620 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
2621 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
2622 
2623 	icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
2624 
2625 	ha->retry_count = nv->retry_count;
2626 
2627 	/* Set minimum login_timeout to 4 seconds. */
2628 	if (nv->login_timeout != ql2xlogintimeout)
2629 		nv->login_timeout = ql2xlogintimeout;
2630 	if (nv->login_timeout < 4)
2631 		nv->login_timeout = 4;
2632 	ha->login_timeout = nv->login_timeout;
2633 	icb->login_timeout = nv->login_timeout;
2634 
2635 	/* Set minimum RATOV to 100 tenths of a second. */
2636 	ha->r_a_tov = 100;
2637 
2638 	ha->loop_reset_delay = nv->reset_delay;
2639 
2640 	/* Link Down Timeout = 0:
2641 	 *
2642 	 * 	When Port Down timer expires we will start returning
2643 	 *	I/O's to OS with "DID_NO_CONNECT".
2644 	 *
2645 	 * Link Down Timeout != 0:
2646 	 *
2647 	 *	 The driver waits for the link to come up after link down
2648 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
2649 	 */
2650 	if (nv->link_down_timeout == 0) {
2651 		ha->loop_down_abort_time =
2652 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
2653 	} else {
2654 		ha->link_down_timeout =	 nv->link_down_timeout;
2655 		ha->loop_down_abort_time =
2656 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
2657 	}
2658 
2659 	/*
2660 	 * Need enough time to try and get the port back.
2661 	 */
2662 	ha->port_down_retry_count = nv->port_down_retry_count;
2663 	if (qlport_down_retry)
2664 		ha->port_down_retry_count = qlport_down_retry;
2665 	/* Set login_retry_count */
2666 	ha->login_retry_count  = nv->retry_count;
2667 	if (ha->port_down_retry_count == nv->port_down_retry_count &&
2668 	    ha->port_down_retry_count > 3)
2669 		ha->login_retry_count = ha->port_down_retry_count;
2670 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
2671 		ha->login_retry_count = ha->port_down_retry_count;
2672 	if (ql2xloginretrycount)
2673 		ha->login_retry_count = ql2xloginretrycount;
2674 
2675 	icb->lun_enables = __constant_cpu_to_le16(0);
2676 	icb->command_resource_count = 0;
2677 	icb->immediate_notify_resource_count = 0;
2678 	icb->timeout = __constant_cpu_to_le16(0);
2679 
2680 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2681 		/* Enable RIO */
2682 		icb->firmware_options[0] &= ~BIT_3;
2683 		icb->add_firmware_options[0] &=
2684 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2685 		icb->add_firmware_options[0] |= BIT_2;
2686 		icb->response_accumulation_timer = 3;
2687 		icb->interrupt_delay_timer = 5;
2688 
2689 		vha->flags.process_response_queue = 1;
2690 	} else {
2691 		/* Enable ZIO. */
2692 		if (!vha->flags.init_done) {
2693 			ha->zio_mode = icb->add_firmware_options[0] &
2694 			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
2695 			ha->zio_timer = icb->interrupt_delay_timer ?
2696 			    icb->interrupt_delay_timer: 2;
2697 		}
2698 		icb->add_firmware_options[0] &=
2699 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2700 		vha->flags.process_response_queue = 0;
2701 		if (ha->zio_mode != QLA_ZIO_DISABLED) {
2702 			ha->zio_mode = QLA_ZIO_MODE_6;
2703 
2704 			ql_log(ql_log_info, vha, 0x0068,
2705 			    "ZIO mode %d enabled; timer delay (%d us).\n",
2706 			    ha->zio_mode, ha->zio_timer * 100);
2707 
2708 			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
2709 			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
2710 			vha->flags.process_response_queue = 1;
2711 		}
2712 	}
2713 
2714 	if (rval) {
2715 		ql_log(ql_log_warn, vha, 0x0069,
2716 		    "NVRAM configuration failed.\n");
2717 	}
2718 	return (rval);
2719 }
2720 
2721 static void
2722 qla2x00_rport_del(void *data)
2723 {
2724 	fc_port_t *fcport = data;
2725 	struct fc_rport *rport;
2726 	scsi_qla_host_t *vha = fcport->vha;
2727 	unsigned long flags;
2728 
2729 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
2730 	rport = fcport->drport ? fcport->drport: fcport->rport;
2731 	fcport->drport = NULL;
2732 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
2733 	if (rport) {
2734 		fc_remote_port_delete(rport);
2735 		/*
2736 		 * Release the target mode FC NEXUS in qla_target.c code
2737 		 * if target mod is enabled.
2738 		 */
2739 		qlt_fc_port_deleted(vha, fcport);
2740 	}
2741 }
2742 
2743 /**
2744  * qla2x00_alloc_fcport() - Allocate a generic fcport.
2745  * @ha: HA context
2746  * @flags: allocation flags
2747  *
2748  * Returns a pointer to the allocated fcport, or NULL, if none available.
2749  */
2750 fc_port_t *
2751 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
2752 {
2753 	fc_port_t *fcport;
2754 
2755 	fcport = kzalloc(sizeof(fc_port_t), flags);
2756 	if (!fcport)
2757 		return NULL;
2758 
2759 	/* Setup fcport template structure. */
2760 	fcport->vha = vha;
2761 	fcport->port_type = FCT_UNKNOWN;
2762 	fcport->loop_id = FC_NO_LOOP_ID;
2763 	qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
2764 	fcport->supported_classes = FC_COS_UNSPECIFIED;
2765 
2766 	return fcport;
2767 }
2768 
2769 /*
2770  * qla2x00_configure_loop
2771  *      Updates Fibre Channel Device Database with what is actually on loop.
2772  *
2773  * Input:
2774  *      ha                = adapter block pointer.
2775  *
2776  * Returns:
2777  *      0 = success.
2778  *      1 = error.
2779  *      2 = database was full and device was not configured.
2780  */
2781 static int
2782 qla2x00_configure_loop(scsi_qla_host_t *vha)
2783 {
2784 	int  rval;
2785 	unsigned long flags, save_flags;
2786 	struct qla_hw_data *ha = vha->hw;
2787 	rval = QLA_SUCCESS;
2788 
2789 	/* Get Initiator ID */
2790 	if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
2791 		rval = qla2x00_configure_hba(vha);
2792 		if (rval != QLA_SUCCESS) {
2793 			ql_dbg(ql_dbg_disc, vha, 0x2013,
2794 			    "Unable to configure HBA.\n");
2795 			return (rval);
2796 		}
2797 	}
2798 
2799 	save_flags = flags = vha->dpc_flags;
2800 	ql_dbg(ql_dbg_disc, vha, 0x2014,
2801 	    "Configure loop -- dpc flags = 0x%lx.\n", flags);
2802 
2803 	/*
2804 	 * If we have both an RSCN and PORT UPDATE pending then handle them
2805 	 * both at the same time.
2806 	 */
2807 	clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2808 	clear_bit(RSCN_UPDATE, &vha->dpc_flags);
2809 
2810 	qla2x00_get_data_rate(vha);
2811 
2812 	/* Determine what we need to do */
2813 	if (ha->current_topology == ISP_CFG_FL &&
2814 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2815 
2816 		set_bit(RSCN_UPDATE, &flags);
2817 
2818 	} else if (ha->current_topology == ISP_CFG_F &&
2819 	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2820 
2821 		set_bit(RSCN_UPDATE, &flags);
2822 		clear_bit(LOCAL_LOOP_UPDATE, &flags);
2823 
2824 	} else if (ha->current_topology == ISP_CFG_N) {
2825 		clear_bit(RSCN_UPDATE, &flags);
2826 
2827 	} else if (!vha->flags.online ||
2828 	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {
2829 
2830 		set_bit(RSCN_UPDATE, &flags);
2831 		set_bit(LOCAL_LOOP_UPDATE, &flags);
2832 	}
2833 
2834 	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
2835 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2836 			ql_dbg(ql_dbg_disc, vha, 0x2015,
2837 			    "Loop resync needed, failing.\n");
2838 			rval = QLA_FUNCTION_FAILED;
2839 		} else
2840 			rval = qla2x00_configure_local_loop(vha);
2841 	}
2842 
2843 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
2844 		if (LOOP_TRANSITION(vha)) {
2845 			ql_dbg(ql_dbg_disc, vha, 0x201e,
2846 			    "Needs RSCN update and loop transition.\n");
2847 			rval = QLA_FUNCTION_FAILED;
2848 		}
2849 		else
2850 			rval = qla2x00_configure_fabric(vha);
2851 	}
2852 
2853 	if (rval == QLA_SUCCESS) {
2854 		if (atomic_read(&vha->loop_down_timer) ||
2855 		    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2856 			rval = QLA_FUNCTION_FAILED;
2857 		} else {
2858 			atomic_set(&vha->loop_state, LOOP_READY);
2859 			ql_dbg(ql_dbg_disc, vha, 0x2069,
2860 			    "LOOP READY.\n");
2861 		}
2862 	}
2863 
2864 	if (rval) {
2865 		ql_dbg(ql_dbg_disc, vha, 0x206a,
2866 		    "%s *** FAILED ***.\n", __func__);
2867 	} else {
2868 		ql_dbg(ql_dbg_disc, vha, 0x206b,
2869 		    "%s: exiting normally.\n", __func__);
2870 	}
2871 
2872 	/* Restore state if a resync event occurred during processing */
2873 	if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2874 		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2875 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2876 		if (test_bit(RSCN_UPDATE, &save_flags)) {
2877 			set_bit(RSCN_UPDATE, &vha->dpc_flags);
2878 		}
2879 	}
2880 
2881 	return (rval);
2882 }
2883 
2884 
2885 
2886 /*
2887  * qla2x00_configure_local_loop
2888  *	Updates Fibre Channel Device Database with local loop devices.
2889  *
2890  * Input:
2891  *	ha = adapter block pointer.
2892  *
2893  * Returns:
2894  *	0 = success.
2895  */
2896 static int
2897 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
2898 {
2899 	int		rval, rval2;
2900 	int		found_devs;
2901 	int		found;
2902 	fc_port_t	*fcport, *new_fcport;
2903 
2904 	uint16_t	index;
2905 	uint16_t	entries;
2906 	char		*id_iter;
2907 	uint16_t	loop_id;
2908 	uint8_t		domain, area, al_pa;
2909 	struct qla_hw_data *ha = vha->hw;
2910 
2911 	found_devs = 0;
2912 	new_fcport = NULL;
2913 	entries = MAX_FIBRE_DEVICES_LOOP;
2914 
2915 	/* Get list of logged in devices. */
2916 	memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
2917 	rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
2918 	    &entries);
2919 	if (rval != QLA_SUCCESS)
2920 		goto cleanup_allocation;
2921 
2922 	ql_dbg(ql_dbg_disc, vha, 0x2017,
2923 	    "Entries in ID list (%d).\n", entries);
2924 	ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
2925 	    (uint8_t *)ha->gid_list,
2926 	    entries * sizeof(struct gid_list_info));
2927 
2928 	/* Allocate temporary fcport for any new fcports discovered. */
2929 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2930 	if (new_fcport == NULL) {
2931 		ql_log(ql_log_warn, vha, 0x2018,
2932 		    "Memory allocation failed for fcport.\n");
2933 		rval = QLA_MEMORY_ALLOC_FAILED;
2934 		goto cleanup_allocation;
2935 	}
2936 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2937 
2938 	/*
2939 	 * Mark local devices that were present with FCF_DEVICE_LOST for now.
2940 	 */
2941 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
2942 		if (atomic_read(&fcport->state) == FCS_ONLINE &&
2943 		    fcport->port_type != FCT_BROADCAST &&
2944 		    (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2945 
2946 			ql_dbg(ql_dbg_disc, vha, 0x2019,
2947 			    "Marking port lost loop_id=0x%04x.\n",
2948 			    fcport->loop_id);
2949 
2950 			qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2951 		}
2952 	}
2953 
2954 	/* Add devices to port list. */
2955 	id_iter = (char *)ha->gid_list;
2956 	for (index = 0; index < entries; index++) {
2957 		domain = ((struct gid_list_info *)id_iter)->domain;
2958 		area = ((struct gid_list_info *)id_iter)->area;
2959 		al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2960 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
2961 			loop_id = (uint16_t)
2962 			    ((struct gid_list_info *)id_iter)->loop_id_2100;
2963 		else
2964 			loop_id = le16_to_cpu(
2965 			    ((struct gid_list_info *)id_iter)->loop_id);
2966 		id_iter += ha->gid_list_info_size;
2967 
2968 		/* Bypass reserved domain fields. */
2969 		if ((domain & 0xf0) == 0xf0)
2970 			continue;
2971 
2972 		/* Bypass if not same domain and area of adapter. */
2973 		if (area && domain &&
2974 		    (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
2975 			continue;
2976 
2977 		/* Bypass invalid local loop ID. */
2978 		if (loop_id > LAST_LOCAL_LOOP_ID)
2979 			continue;
2980 
2981 		memset(new_fcport, 0, sizeof(fc_port_t));
2982 
2983 		/* Fill in member data. */
2984 		new_fcport->d_id.b.domain = domain;
2985 		new_fcport->d_id.b.area = area;
2986 		new_fcport->d_id.b.al_pa = al_pa;
2987 		new_fcport->loop_id = loop_id;
2988 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
2989 		if (rval2 != QLA_SUCCESS) {
2990 			ql_dbg(ql_dbg_disc, vha, 0x201a,
2991 			    "Failed to retrieve fcport information "
2992 			    "-- get_port_database=%x, loop_id=0x%04x.\n",
2993 			    rval2, new_fcport->loop_id);
2994 			ql_dbg(ql_dbg_disc, vha, 0x201b,
2995 			    "Scheduling resync.\n");
2996 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2997 			continue;
2998 		}
2999 
3000 		/* Check for matching device in port list. */
3001 		found = 0;
3002 		fcport = NULL;
3003 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
3004 			if (memcmp(new_fcport->port_name, fcport->port_name,
3005 			    WWN_SIZE))
3006 				continue;
3007 
3008 			fcport->flags &= ~FCF_FABRIC_DEVICE;
3009 			fcport->loop_id = new_fcport->loop_id;
3010 			fcport->port_type = new_fcport->port_type;
3011 			fcport->d_id.b24 = new_fcport->d_id.b24;
3012 			memcpy(fcport->node_name, new_fcport->node_name,
3013 			    WWN_SIZE);
3014 
3015 			found++;
3016 			break;
3017 		}
3018 
3019 		if (!found) {
3020 			/* New device, add to fcports list. */
3021 			list_add_tail(&new_fcport->list, &vha->vp_fcports);
3022 
3023 			/* Allocate a new replacement fcport. */
3024 			fcport = new_fcport;
3025 			new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3026 			if (new_fcport == NULL) {
3027 				ql_log(ql_log_warn, vha, 0x201c,
3028 				    "Failed to allocate memory for fcport.\n");
3029 				rval = QLA_MEMORY_ALLOC_FAILED;
3030 				goto cleanup_allocation;
3031 			}
3032 			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
3033 		}
3034 
3035 		/* Base iIDMA settings on HBA port speed. */
3036 		fcport->fp_speed = ha->link_data_rate;
3037 
3038 		qla2x00_update_fcport(vha, fcport);
3039 
3040 		found_devs++;
3041 	}
3042 
3043 cleanup_allocation:
3044 	kfree(new_fcport);
3045 
3046 	if (rval != QLA_SUCCESS) {
3047 		ql_dbg(ql_dbg_disc, vha, 0x201d,
3048 		    "Configure local loop error exit: rval=%x.\n", rval);
3049 	}
3050 
3051 	return (rval);
3052 }
3053 
3054 static void
3055 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
3056 {
3057 	int rval;
3058 	uint16_t mb[4];
3059 	struct qla_hw_data *ha = vha->hw;
3060 
3061 	if (!IS_IIDMA_CAPABLE(ha))
3062 		return;
3063 
3064 	if (atomic_read(&fcport->state) != FCS_ONLINE)
3065 		return;
3066 
3067 	if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
3068 	    fcport->fp_speed > ha->link_data_rate)
3069 		return;
3070 
3071 	rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
3072 	    mb);
3073 	if (rval != QLA_SUCCESS) {
3074 		ql_dbg(ql_dbg_disc, vha, 0x2004,
3075 		    "Unable to adjust iIDMA %8phN -- %04x %x %04x %04x.\n",
3076 		    fcport->port_name, rval, fcport->fp_speed, mb[0], mb[1]);
3077 	} else {
3078 		ql_dbg(ql_dbg_disc, vha, 0x2005,
3079 		    "iIDMA adjusted to %s GB/s on %8phN.\n",
3080 		    qla2x00_get_link_speed_str(ha, fcport->fp_speed),
3081 		    fcport->port_name);
3082 	}
3083 }
3084 
3085 static void
3086 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
3087 {
3088 	struct fc_rport_identifiers rport_ids;
3089 	struct fc_rport *rport;
3090 	unsigned long flags;
3091 
3092 	qla2x00_rport_del(fcport);
3093 
3094 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
3095 	rport_ids.port_name = wwn_to_u64(fcport->port_name);
3096 	rport_ids.port_id = fcport->d_id.b.domain << 16 |
3097 	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
3098 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3099 	fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
3100 	if (!rport) {
3101 		ql_log(ql_log_warn, vha, 0x2006,
3102 		    "Unable to allocate fc remote port.\n");
3103 		return;
3104 	}
3105 	/*
3106 	 * Create target mode FC NEXUS in qla_target.c if target mode is
3107 	 * enabled..
3108 	 */
3109 	qlt_fc_port_added(vha, fcport);
3110 
3111 	spin_lock_irqsave(fcport->vha->host->host_lock, flags);
3112 	*((fc_port_t **)rport->dd_data) = fcport;
3113 	spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
3114 
3115 	rport->supported_classes = fcport->supported_classes;
3116 
3117 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3118 	if (fcport->port_type == FCT_INITIATOR)
3119 		rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3120 	if (fcport->port_type == FCT_TARGET)
3121 		rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3122 	fc_remote_port_rolechg(rport, rport_ids.roles);
3123 }
3124 
3125 /*
3126  * qla2x00_update_fcport
3127  *	Updates device on list.
3128  *
3129  * Input:
3130  *	ha = adapter block pointer.
3131  *	fcport = port structure pointer.
3132  *
3133  * Return:
3134  *	0  - Success
3135  *  BIT_0 - error
3136  *
3137  * Context:
3138  *	Kernel context.
3139  */
3140 void
3141 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
3142 {
3143 	fcport->vha = vha;
3144 
3145 	if (IS_QLAFX00(vha->hw)) {
3146 		qla2x00_set_fcport_state(fcport, FCS_ONLINE);
3147 		qla2x00_reg_remote_port(vha, fcport);
3148 		return;
3149 	}
3150 	fcport->login_retry = 0;
3151 	fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
3152 
3153 	qla2x00_set_fcport_state(fcport, FCS_ONLINE);
3154 	qla2x00_iidma_fcport(vha, fcport);
3155 	qla24xx_update_fcport_fcp_prio(vha, fcport);
3156 	qla2x00_reg_remote_port(vha, fcport);
3157 }
3158 
3159 /*
3160  * qla2x00_configure_fabric
3161  *      Setup SNS devices with loop ID's.
3162  *
3163  * Input:
3164  *      ha = adapter block pointer.
3165  *
3166  * Returns:
3167  *      0 = success.
3168  *      BIT_0 = error
3169  */
3170 static int
3171 qla2x00_configure_fabric(scsi_qla_host_t *vha)
3172 {
3173 	int	rval;
3174 	fc_port_t	*fcport, *fcptemp;
3175 	uint16_t	next_loopid;
3176 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
3177 	uint16_t	loop_id;
3178 	LIST_HEAD(new_fcports);
3179 	struct qla_hw_data *ha = vha->hw;
3180 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
3181 
3182 	/* If FL port exists, then SNS is present */
3183 	if (IS_FWI2_CAPABLE(ha))
3184 		loop_id = NPH_F_PORT;
3185 	else
3186 		loop_id = SNS_FL_PORT;
3187 	rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
3188 	if (rval != QLA_SUCCESS) {
3189 		ql_dbg(ql_dbg_disc, vha, 0x201f,
3190 		    "MBX_GET_PORT_NAME failed, No FL Port.\n");
3191 
3192 		vha->device_flags &= ~SWITCH_FOUND;
3193 		return (QLA_SUCCESS);
3194 	}
3195 	vha->device_flags |= SWITCH_FOUND;
3196 
3197 	do {
3198 		/* FDMI support. */
3199 		if (ql2xfdmienable &&
3200 		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
3201 			qla2x00_fdmi_register(vha);
3202 
3203 		/* Ensure we are logged into the SNS. */
3204 		if (IS_FWI2_CAPABLE(ha))
3205 			loop_id = NPH_SNS;
3206 		else
3207 			loop_id = SIMPLE_NAME_SERVER;
3208 		rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
3209 		    0xfc, mb, BIT_1|BIT_0);
3210 		if (rval != QLA_SUCCESS) {
3211 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3212 			return rval;
3213 		}
3214 		if (mb[0] != MBS_COMMAND_COMPLETE) {
3215 			ql_dbg(ql_dbg_disc, vha, 0x2042,
3216 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x "
3217 			    "mb[6]=%x mb[7]=%x.\n", loop_id, mb[0], mb[1],
3218 			    mb[2], mb[6], mb[7]);
3219 			return (QLA_SUCCESS);
3220 		}
3221 
3222 		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
3223 			if (qla2x00_rft_id(vha)) {
3224 				/* EMPTY */
3225 				ql_dbg(ql_dbg_disc, vha, 0x2045,
3226 				    "Register FC-4 TYPE failed.\n");
3227 			}
3228 			if (qla2x00_rff_id(vha)) {
3229 				/* EMPTY */
3230 				ql_dbg(ql_dbg_disc, vha, 0x2049,
3231 				    "Register FC-4 Features failed.\n");
3232 			}
3233 			if (qla2x00_rnn_id(vha)) {
3234 				/* EMPTY */
3235 				ql_dbg(ql_dbg_disc, vha, 0x204f,
3236 				    "Register Node Name failed.\n");
3237 			} else if (qla2x00_rsnn_nn(vha)) {
3238 				/* EMPTY */
3239 				ql_dbg(ql_dbg_disc, vha, 0x2053,
3240 				    "Register Symobilic Node Name failed.\n");
3241 			}
3242 		}
3243 
3244 #define QLA_FCPORT_SCAN		1
3245 #define QLA_FCPORT_FOUND	2
3246 
3247 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
3248 			fcport->scan_state = QLA_FCPORT_SCAN;
3249 		}
3250 
3251 		rval = qla2x00_find_all_fabric_devs(vha, &new_fcports);
3252 		if (rval != QLA_SUCCESS)
3253 			break;
3254 
3255 		/*
3256 		 * Logout all previous fabric devices marked lost, except
3257 		 * FCP2 devices.
3258 		 */
3259 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
3260 			if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3261 				break;
3262 
3263 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
3264 				continue;
3265 
3266 			if (fcport->scan_state == QLA_FCPORT_SCAN &&
3267 			    atomic_read(&fcport->state) == FCS_ONLINE) {
3268 				qla2x00_mark_device_lost(vha, fcport,
3269 				    ql2xplogiabsentdevice, 0);
3270 				if (fcport->loop_id != FC_NO_LOOP_ID &&
3271 				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3272 				    fcport->port_type != FCT_INITIATOR &&
3273 				    fcport->port_type != FCT_BROADCAST) {
3274 					ha->isp_ops->fabric_logout(vha,
3275 					    fcport->loop_id,
3276 					    fcport->d_id.b.domain,
3277 					    fcport->d_id.b.area,
3278 					    fcport->d_id.b.al_pa);
3279 					fcport->loop_id = FC_NO_LOOP_ID;
3280 				}
3281 			}
3282 		}
3283 
3284 		/* Starting free loop ID. */
3285 		next_loopid = ha->min_external_loopid;
3286 
3287 		/*
3288 		 * Scan through our port list and login entries that need to be
3289 		 * logged in.
3290 		 */
3291 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
3292 			if (atomic_read(&vha->loop_down_timer) ||
3293 			    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3294 				break;
3295 
3296 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
3297 			    (fcport->flags & FCF_LOGIN_NEEDED) == 0)
3298 				continue;
3299 
3300 			if (fcport->loop_id == FC_NO_LOOP_ID) {
3301 				fcport->loop_id = next_loopid;
3302 				rval = qla2x00_find_new_loop_id(
3303 				    base_vha, fcport);
3304 				if (rval != QLA_SUCCESS) {
3305 					/* Ran out of IDs to use */
3306 					break;
3307 				}
3308 			}
3309 			/* Login and update database */
3310 			qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
3311 		}
3312 
3313 		/* Exit if out of loop IDs. */
3314 		if (rval != QLA_SUCCESS) {
3315 			break;
3316 		}
3317 
3318 		/*
3319 		 * Login and add the new devices to our port list.
3320 		 */
3321 		list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
3322 			if (atomic_read(&vha->loop_down_timer) ||
3323 			    test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3324 				break;
3325 
3326 			/* Find a new loop ID to use. */
3327 			fcport->loop_id = next_loopid;
3328 			rval = qla2x00_find_new_loop_id(base_vha, fcport);
3329 			if (rval != QLA_SUCCESS) {
3330 				/* Ran out of IDs to use */
3331 				break;
3332 			}
3333 
3334 			/* Login and update database */
3335 			qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
3336 
3337 			list_move_tail(&fcport->list, &vha->vp_fcports);
3338 		}
3339 	} while (0);
3340 
3341 	/* Free all new device structures not processed. */
3342 	list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
3343 		list_del(&fcport->list);
3344 		kfree(fcport);
3345 	}
3346 
3347 	if (rval) {
3348 		ql_dbg(ql_dbg_disc, vha, 0x2068,
3349 		    "Configure fabric error exit rval=%d.\n", rval);
3350 	}
3351 
3352 	return (rval);
3353 }
3354 
3355 /*
3356  * qla2x00_find_all_fabric_devs
3357  *
3358  * Input:
3359  *	ha = adapter block pointer.
3360  *	dev = database device entry pointer.
3361  *
3362  * Returns:
3363  *	0 = success.
3364  *
3365  * Context:
3366  *	Kernel context.
3367  */
3368 static int
3369 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
3370 	struct list_head *new_fcports)
3371 {
3372 	int		rval;
3373 	uint16_t	loop_id;
3374 	fc_port_t	*fcport, *new_fcport, *fcptemp;
3375 	int		found;
3376 
3377 	sw_info_t	*swl;
3378 	int		swl_idx;
3379 	int		first_dev, last_dev;
3380 	port_id_t	wrap = {}, nxt_d_id;
3381 	struct qla_hw_data *ha = vha->hw;
3382 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
3383 
3384 	rval = QLA_SUCCESS;
3385 
3386 	/* Try GID_PT to get device list, else GAN. */
3387 	if (!ha->swl)
3388 		ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
3389 		    GFP_KERNEL);
3390 	swl = ha->swl;
3391 	if (!swl) {
3392 		/*EMPTY*/
3393 		ql_dbg(ql_dbg_disc, vha, 0x2054,
3394 		    "GID_PT allocations failed, fallback on GA_NXT.\n");
3395 	} else {
3396 		memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
3397 		if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
3398 			swl = NULL;
3399 		} else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
3400 			swl = NULL;
3401 		} else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
3402 			swl = NULL;
3403 		} else if (ql2xiidmaenable &&
3404 		    qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) {
3405 			qla2x00_gpsc(vha, swl);
3406 		}
3407 
3408 		/* If other queries succeeded probe for FC-4 type */
3409 		if (swl)
3410 			qla2x00_gff_id(vha, swl);
3411 	}
3412 	swl_idx = 0;
3413 
3414 	/* Allocate temporary fcport for any new fcports discovered. */
3415 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3416 	if (new_fcport == NULL) {
3417 		ql_log(ql_log_warn, vha, 0x205e,
3418 		    "Failed to allocate memory for fcport.\n");
3419 		return (QLA_MEMORY_ALLOC_FAILED);
3420 	}
3421 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3422 	/* Set start port ID scan at adapter ID. */
3423 	first_dev = 1;
3424 	last_dev = 0;
3425 
3426 	/* Starting free loop ID. */
3427 	loop_id = ha->min_external_loopid;
3428 	for (; loop_id <= ha->max_loop_id; loop_id++) {
3429 		if (qla2x00_is_reserved_id(vha, loop_id))
3430 			continue;
3431 
3432 		if (ha->current_topology == ISP_CFG_FL &&
3433 		    (atomic_read(&vha->loop_down_timer) ||
3434 		     LOOP_TRANSITION(vha))) {
3435 			atomic_set(&vha->loop_down_timer, 0);
3436 			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3437 			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
3438 			break;
3439 		}
3440 
3441 		if (swl != NULL) {
3442 			if (last_dev) {
3443 				wrap.b24 = new_fcport->d_id.b24;
3444 			} else {
3445 				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
3446 				memcpy(new_fcport->node_name,
3447 				    swl[swl_idx].node_name, WWN_SIZE);
3448 				memcpy(new_fcport->port_name,
3449 				    swl[swl_idx].port_name, WWN_SIZE);
3450 				memcpy(new_fcport->fabric_port_name,
3451 				    swl[swl_idx].fabric_port_name, WWN_SIZE);
3452 				new_fcport->fp_speed = swl[swl_idx].fp_speed;
3453 				new_fcport->fc4_type = swl[swl_idx].fc4_type;
3454 
3455 				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
3456 					last_dev = 1;
3457 				}
3458 				swl_idx++;
3459 			}
3460 		} else {
3461 			/* Send GA_NXT to the switch */
3462 			rval = qla2x00_ga_nxt(vha, new_fcport);
3463 			if (rval != QLA_SUCCESS) {
3464 				ql_log(ql_log_warn, vha, 0x2064,
3465 				    "SNS scan failed -- assuming "
3466 				    "zero-entry result.\n");
3467 				list_for_each_entry_safe(fcport, fcptemp,
3468 				    new_fcports, list) {
3469 					list_del(&fcport->list);
3470 					kfree(fcport);
3471 				}
3472 				rval = QLA_SUCCESS;
3473 				break;
3474 			}
3475 		}
3476 
3477 		/* If wrap on switch device list, exit. */
3478 		if (first_dev) {
3479 			wrap.b24 = new_fcport->d_id.b24;
3480 			first_dev = 0;
3481 		} else if (new_fcport->d_id.b24 == wrap.b24) {
3482 			ql_dbg(ql_dbg_disc, vha, 0x2065,
3483 			    "Device wrap (%02x%02x%02x).\n",
3484 			    new_fcport->d_id.b.domain,
3485 			    new_fcport->d_id.b.area,
3486 			    new_fcport->d_id.b.al_pa);
3487 			break;
3488 		}
3489 
3490 		/* Bypass if same physical adapter. */
3491 		if (new_fcport->d_id.b24 == base_vha->d_id.b24)
3492 			continue;
3493 
3494 		/* Bypass virtual ports of the same host. */
3495 		if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
3496 			continue;
3497 
3498 		/* Bypass if same domain and area of adapter. */
3499 		if (((new_fcport->d_id.b24 & 0xffff00) ==
3500 		    (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
3501 			ISP_CFG_FL)
3502 			    continue;
3503 
3504 		/* Bypass reserved domain fields. */
3505 		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
3506 			continue;
3507 
3508 		/* Bypass ports whose FCP-4 type is not FCP_SCSI */
3509 		if (ql2xgffidenable &&
3510 		    (new_fcport->fc4_type != FC4_TYPE_FCP_SCSI &&
3511 		    new_fcport->fc4_type != FC4_TYPE_UNKNOWN))
3512 			continue;
3513 
3514 		/* Locate matching device in database. */
3515 		found = 0;
3516 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
3517 			if (memcmp(new_fcport->port_name, fcport->port_name,
3518 			    WWN_SIZE))
3519 				continue;
3520 
3521 			fcport->scan_state = QLA_FCPORT_FOUND;
3522 
3523 			found++;
3524 
3525 			/* Update port state. */
3526 			memcpy(fcport->fabric_port_name,
3527 			    new_fcport->fabric_port_name, WWN_SIZE);
3528 			fcport->fp_speed = new_fcport->fp_speed;
3529 
3530 			/*
3531 			 * If address the same and state FCS_ONLINE, nothing
3532 			 * changed.
3533 			 */
3534 			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
3535 			    atomic_read(&fcport->state) == FCS_ONLINE) {
3536 				break;
3537 			}
3538 
3539 			/*
3540 			 * If device was not a fabric device before.
3541 			 */
3542 			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
3543 				fcport->d_id.b24 = new_fcport->d_id.b24;
3544 				qla2x00_clear_loop_id(fcport);
3545 				fcport->flags |= (FCF_FABRIC_DEVICE |
3546 				    FCF_LOGIN_NEEDED);
3547 				break;
3548 			}
3549 
3550 			/*
3551 			 * Port ID changed or device was marked to be updated;
3552 			 * Log it out if still logged in and mark it for
3553 			 * relogin later.
3554 			 */
3555 			fcport->d_id.b24 = new_fcport->d_id.b24;
3556 			fcport->flags |= FCF_LOGIN_NEEDED;
3557 			if (fcport->loop_id != FC_NO_LOOP_ID &&
3558 			    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3559 			    (fcport->flags & FCF_ASYNC_SENT) == 0 &&
3560 			    fcport->port_type != FCT_INITIATOR &&
3561 			    fcport->port_type != FCT_BROADCAST) {
3562 				ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3563 				    fcport->d_id.b.domain, fcport->d_id.b.area,
3564 				    fcport->d_id.b.al_pa);
3565 				qla2x00_clear_loop_id(fcport);
3566 			}
3567 
3568 			break;
3569 		}
3570 
3571 		if (found)
3572 			continue;
3573 		/* If device was not in our fcports list, then add it. */
3574 		list_add_tail(&new_fcport->list, new_fcports);
3575 
3576 		/* Allocate a new replacement fcport. */
3577 		nxt_d_id.b24 = new_fcport->d_id.b24;
3578 		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3579 		if (new_fcport == NULL) {
3580 			ql_log(ql_log_warn, vha, 0x2066,
3581 			    "Memory allocation failed for fcport.\n");
3582 			return (QLA_MEMORY_ALLOC_FAILED);
3583 		}
3584 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3585 		new_fcport->d_id.b24 = nxt_d_id.b24;
3586 	}
3587 
3588 	kfree(new_fcport);
3589 
3590 	return (rval);
3591 }
3592 
3593 /*
3594  * qla2x00_find_new_loop_id
3595  *	Scan through our port list and find a new usable loop ID.
3596  *
3597  * Input:
3598  *	ha:	adapter state pointer.
3599  *	dev:	port structure pointer.
3600  *
3601  * Returns:
3602  *	qla2x00 local function return status code.
3603  *
3604  * Context:
3605  *	Kernel context.
3606  */
3607 int
3608 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
3609 {
3610 	int	rval;
3611 	struct qla_hw_data *ha = vha->hw;
3612 	unsigned long flags = 0;
3613 
3614 	rval = QLA_SUCCESS;
3615 
3616 	spin_lock_irqsave(&ha->vport_slock, flags);
3617 
3618 	dev->loop_id = find_first_zero_bit(ha->loop_id_map,
3619 	    LOOPID_MAP_SIZE);
3620 	if (dev->loop_id >= LOOPID_MAP_SIZE ||
3621 	    qla2x00_is_reserved_id(vha, dev->loop_id)) {
3622 		dev->loop_id = FC_NO_LOOP_ID;
3623 		rval = QLA_FUNCTION_FAILED;
3624 	} else
3625 		set_bit(dev->loop_id, ha->loop_id_map);
3626 
3627 	spin_unlock_irqrestore(&ha->vport_slock, flags);
3628 
3629 	if (rval == QLA_SUCCESS)
3630 		ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
3631 		    "Assigning new loopid=%x, portid=%x.\n",
3632 		    dev->loop_id, dev->d_id.b24);
3633 	else
3634 		ql_log(ql_log_warn, dev->vha, 0x2087,
3635 		    "No loop_id's available, portid=%x.\n",
3636 		    dev->d_id.b24);
3637 
3638 	return (rval);
3639 }
3640 
3641 /*
3642  * qla2x00_fabric_dev_login
3643  *	Login fabric target device and update FC port database.
3644  *
3645  * Input:
3646  *	ha:		adapter state pointer.
3647  *	fcport:		port structure list pointer.
3648  *	next_loopid:	contains value of a new loop ID that can be used
3649  *			by the next login attempt.
3650  *
3651  * Returns:
3652  *	qla2x00 local function return status code.
3653  *
3654  * Context:
3655  *	Kernel context.
3656  */
3657 static int
3658 qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3659     uint16_t *next_loopid)
3660 {
3661 	int	rval;
3662 	int	retry;
3663 	uint8_t opts;
3664 	struct qla_hw_data *ha = vha->hw;
3665 
3666 	rval = QLA_SUCCESS;
3667 	retry = 0;
3668 
3669 	if (IS_ALOGIO_CAPABLE(ha)) {
3670 		if (fcport->flags & FCF_ASYNC_SENT)
3671 			return rval;
3672 		fcport->flags |= FCF_ASYNC_SENT;
3673 		rval = qla2x00_post_async_login_work(vha, fcport, NULL);
3674 		if (!rval)
3675 			return rval;
3676 	}
3677 
3678 	fcport->flags &= ~FCF_ASYNC_SENT;
3679 	rval = qla2x00_fabric_login(vha, fcport, next_loopid);
3680 	if (rval == QLA_SUCCESS) {
3681 		/* Send an ADISC to FCP2 devices.*/
3682 		opts = 0;
3683 		if (fcport->flags & FCF_FCP2_DEVICE)
3684 			opts |= BIT_1;
3685 		rval = qla2x00_get_port_database(vha, fcport, opts);
3686 		if (rval != QLA_SUCCESS) {
3687 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3688 			    fcport->d_id.b.domain, fcport->d_id.b.area,
3689 			    fcport->d_id.b.al_pa);
3690 			qla2x00_mark_device_lost(vha, fcport, 1, 0);
3691 		} else {
3692 			qla2x00_update_fcport(vha, fcport);
3693 		}
3694 	} else {
3695 		/* Retry Login. */
3696 		qla2x00_mark_device_lost(vha, fcport, 1, 0);
3697 	}
3698 
3699 	return (rval);
3700 }
3701 
3702 /*
3703  * qla2x00_fabric_login
3704  *	Issue fabric login command.
3705  *
3706  * Input:
3707  *	ha = adapter block pointer.
3708  *	device = pointer to FC device type structure.
3709  *
3710  * Returns:
3711  *      0 - Login successfully
3712  *      1 - Login failed
3713  *      2 - Initiator device
3714  *      3 - Fatal error
3715  */
3716 int
3717 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3718     uint16_t *next_loopid)
3719 {
3720 	int	rval;
3721 	int	retry;
3722 	uint16_t tmp_loopid;
3723 	uint16_t mb[MAILBOX_REGISTER_COUNT];
3724 	struct qla_hw_data *ha = vha->hw;
3725 
3726 	retry = 0;
3727 	tmp_loopid = 0;
3728 
3729 	for (;;) {
3730 		ql_dbg(ql_dbg_disc, vha, 0x2000,
3731 		    "Trying Fabric Login w/loop id 0x%04x for port "
3732 		    "%02x%02x%02x.\n",
3733 		    fcport->loop_id, fcport->d_id.b.domain,
3734 		    fcport->d_id.b.area, fcport->d_id.b.al_pa);
3735 
3736 		/* Login fcport on switch. */
3737 		rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
3738 		    fcport->d_id.b.domain, fcport->d_id.b.area,
3739 		    fcport->d_id.b.al_pa, mb, BIT_0);
3740 		if (rval != QLA_SUCCESS) {
3741 			return rval;
3742 		}
3743 		if (mb[0] == MBS_PORT_ID_USED) {
3744 			/*
3745 			 * Device has another loop ID.  The firmware team
3746 			 * recommends the driver perform an implicit login with
3747 			 * the specified ID again. The ID we just used is save
3748 			 * here so we return with an ID that can be tried by
3749 			 * the next login.
3750 			 */
3751 			retry++;
3752 			tmp_loopid = fcport->loop_id;
3753 			fcport->loop_id = mb[1];
3754 
3755 			ql_dbg(ql_dbg_disc, vha, 0x2001,
3756 			    "Fabric Login: port in use - next loop "
3757 			    "id=0x%04x, port id= %02x%02x%02x.\n",
3758 			    fcport->loop_id, fcport->d_id.b.domain,
3759 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
3760 
3761 		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
3762 			/*
3763 			 * Login succeeded.
3764 			 */
3765 			if (retry) {
3766 				/* A retry occurred before. */
3767 				*next_loopid = tmp_loopid;
3768 			} else {
3769 				/*
3770 				 * No retry occurred before. Just increment the
3771 				 * ID value for next login.
3772 				 */
3773 				*next_loopid = (fcport->loop_id + 1);
3774 			}
3775 
3776 			if (mb[1] & BIT_0) {
3777 				fcport->port_type = FCT_INITIATOR;
3778 			} else {
3779 				fcport->port_type = FCT_TARGET;
3780 				if (mb[1] & BIT_1) {
3781 					fcport->flags |= FCF_FCP2_DEVICE;
3782 				}
3783 			}
3784 
3785 			if (mb[10] & BIT_0)
3786 				fcport->supported_classes |= FC_COS_CLASS2;
3787 			if (mb[10] & BIT_1)
3788 				fcport->supported_classes |= FC_COS_CLASS3;
3789 
3790 			if (IS_FWI2_CAPABLE(ha)) {
3791 				if (mb[10] & BIT_7)
3792 					fcport->flags |=
3793 					    FCF_CONF_COMP_SUPPORTED;
3794 			}
3795 
3796 			rval = QLA_SUCCESS;
3797 			break;
3798 		} else if (mb[0] == MBS_LOOP_ID_USED) {
3799 			/*
3800 			 * Loop ID already used, try next loop ID.
3801 			 */
3802 			fcport->loop_id++;
3803 			rval = qla2x00_find_new_loop_id(vha, fcport);
3804 			if (rval != QLA_SUCCESS) {
3805 				/* Ran out of loop IDs to use */
3806 				break;
3807 			}
3808 		} else if (mb[0] == MBS_COMMAND_ERROR) {
3809 			/*
3810 			 * Firmware possibly timed out during login. If NO
3811 			 * retries are left to do then the device is declared
3812 			 * dead.
3813 			 */
3814 			*next_loopid = fcport->loop_id;
3815 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3816 			    fcport->d_id.b.domain, fcport->d_id.b.area,
3817 			    fcport->d_id.b.al_pa);
3818 			qla2x00_mark_device_lost(vha, fcport, 1, 0);
3819 
3820 			rval = 1;
3821 			break;
3822 		} else {
3823 			/*
3824 			 * unrecoverable / not handled error
3825 			 */
3826 			ql_dbg(ql_dbg_disc, vha, 0x2002,
3827 			    "Failed=%x port_id=%02x%02x%02x loop_id=%x "
3828 			    "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
3829 			    fcport->d_id.b.area, fcport->d_id.b.al_pa,
3830 			    fcport->loop_id, jiffies);
3831 
3832 			*next_loopid = fcport->loop_id;
3833 			ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3834 			    fcport->d_id.b.domain, fcport->d_id.b.area,
3835 			    fcport->d_id.b.al_pa);
3836 			qla2x00_clear_loop_id(fcport);
3837 			fcport->login_retry = 0;
3838 
3839 			rval = 3;
3840 			break;
3841 		}
3842 	}
3843 
3844 	return (rval);
3845 }
3846 
3847 /*
3848  * qla2x00_local_device_login
3849  *	Issue local device login command.
3850  *
3851  * Input:
3852  *	ha = adapter block pointer.
3853  *	loop_id = loop id of device to login to.
3854  *
3855  * Returns (Where's the #define!!!!):
3856  *      0 - Login successfully
3857  *      1 - Login failed
3858  *      3 - Fatal error
3859  */
3860 int
3861 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
3862 {
3863 	int		rval;
3864 	uint16_t	mb[MAILBOX_REGISTER_COUNT];
3865 
3866 	memset(mb, 0, sizeof(mb));
3867 	rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
3868 	if (rval == QLA_SUCCESS) {
3869 		/* Interrogate mailbox registers for any errors */
3870 		if (mb[0] == MBS_COMMAND_ERROR)
3871 			rval = 1;
3872 		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3873 			/* device not in PCB table */
3874 			rval = 3;
3875 	}
3876 
3877 	return (rval);
3878 }
3879 
3880 /*
3881  *  qla2x00_loop_resync
3882  *      Resync with fibre channel devices.
3883  *
3884  * Input:
3885  *      ha = adapter block pointer.
3886  *
3887  * Returns:
3888  *      0 = success
3889  */
3890 int
3891 qla2x00_loop_resync(scsi_qla_host_t *vha)
3892 {
3893 	int rval = QLA_SUCCESS;
3894 	uint32_t wait_time;
3895 	struct req_que *req;
3896 	struct rsp_que *rsp;
3897 
3898 	if (vha->hw->flags.cpu_affinity_enabled)
3899 		req = vha->hw->req_q_map[0];
3900 	else
3901 		req = vha->req;
3902 	rsp = req->rsp;
3903 
3904 	clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3905 	if (vha->flags.online) {
3906 		if (!(rval = qla2x00_fw_ready(vha))) {
3907 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
3908 			wait_time = 256;
3909 			do {
3910 				if (!IS_QLAFX00(vha->hw)) {
3911 					/*
3912 					 * Issue a marker after FW becomes
3913 					 * ready.
3914 					 */
3915 					qla2x00_marker(vha, req, rsp, 0, 0,
3916 						MK_SYNC_ALL);
3917 					vha->marker_needed = 0;
3918 				}
3919 
3920 				/* Remap devices on Loop. */
3921 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3922 
3923 				if (IS_QLAFX00(vha->hw))
3924 					qlafx00_configure_devices(vha);
3925 				else
3926 					qla2x00_configure_loop(vha);
3927 
3928 				wait_time--;
3929 			} while (!atomic_read(&vha->loop_down_timer) &&
3930 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3931 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3932 				&vha->dpc_flags)));
3933 		}
3934 	}
3935 
3936 	if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3937 		return (QLA_FUNCTION_FAILED);
3938 
3939 	if (rval)
3940 		ql_dbg(ql_dbg_disc, vha, 0x206c,
3941 		    "%s *** FAILED ***.\n", __func__);
3942 
3943 	return (rval);
3944 }
3945 
3946 /*
3947 * qla2x00_perform_loop_resync
3948 * Description: This function will set the appropriate flags and call
3949 *              qla2x00_loop_resync. If successful loop will be resynced
3950 * Arguments : scsi_qla_host_t pointer
3951 * returm    : Success or Failure
3952 */
3953 
3954 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
3955 {
3956 	int32_t rval = 0;
3957 
3958 	if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
3959 		/*Configure the flags so that resync happens properly*/
3960 		atomic_set(&ha->loop_down_timer, 0);
3961 		if (!(ha->device_flags & DFLG_NO_CABLE)) {
3962 			atomic_set(&ha->loop_state, LOOP_UP);
3963 			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
3964 			set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
3965 			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3966 
3967 			rval = qla2x00_loop_resync(ha);
3968 		} else
3969 			atomic_set(&ha->loop_state, LOOP_DEAD);
3970 
3971 		clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
3972 	}
3973 
3974 	return rval;
3975 }
3976 
3977 void
3978 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
3979 {
3980 	fc_port_t *fcport;
3981 	struct scsi_qla_host *vha;
3982 	struct qla_hw_data *ha = base_vha->hw;
3983 	unsigned long flags;
3984 
3985 	spin_lock_irqsave(&ha->vport_slock, flags);
3986 	/* Go with deferred removal of rport references. */
3987 	list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
3988 		atomic_inc(&vha->vref_count);
3989 		list_for_each_entry(fcport, &vha->vp_fcports, list) {
3990 			if (fcport->drport &&
3991 			    atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
3992 				spin_unlock_irqrestore(&ha->vport_slock, flags);
3993 				qla2x00_rport_del(fcport);
3994 				spin_lock_irqsave(&ha->vport_slock, flags);
3995 			}
3996 		}
3997 		atomic_dec(&vha->vref_count);
3998 	}
3999 	spin_unlock_irqrestore(&ha->vport_slock, flags);
4000 }
4001 
4002 /* Assumes idc_lock always held on entry */
4003 void
4004 qla83xx_reset_ownership(scsi_qla_host_t *vha)
4005 {
4006 	struct qla_hw_data *ha = vha->hw;
4007 	uint32_t drv_presence, drv_presence_mask;
4008 	uint32_t dev_part_info1, dev_part_info2, class_type;
4009 	uint32_t class_type_mask = 0x3;
4010 	uint16_t fcoe_other_function = 0xffff, i;
4011 
4012 	if (IS_QLA8044(ha)) {
4013 		drv_presence = qla8044_rd_direct(vha,
4014 		    QLA8044_CRB_DRV_ACTIVE_INDEX);
4015 		dev_part_info1 = qla8044_rd_direct(vha,
4016 		    QLA8044_CRB_DEV_PART_INFO_INDEX);
4017 		dev_part_info2 = qla8044_rd_direct(vha,
4018 		    QLA8044_CRB_DEV_PART_INFO2);
4019 	} else {
4020 		qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4021 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
4022 		qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
4023 	}
4024 	for (i = 0; i < 8; i++) {
4025 		class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
4026 		if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
4027 		    (i != ha->portnum)) {
4028 			fcoe_other_function = i;
4029 			break;
4030 		}
4031 	}
4032 	if (fcoe_other_function == 0xffff) {
4033 		for (i = 0; i < 8; i++) {
4034 			class_type = ((dev_part_info2 >> (i * 4)) &
4035 			    class_type_mask);
4036 			if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
4037 			    ((i + 8) != ha->portnum)) {
4038 				fcoe_other_function = i + 8;
4039 				break;
4040 			}
4041 		}
4042 	}
4043 	/*
4044 	 * Prepare drv-presence mask based on fcoe functions present.
4045 	 * However consider only valid physical fcoe function numbers (0-15).
4046 	 */
4047 	drv_presence_mask = ~((1 << (ha->portnum)) |
4048 			((fcoe_other_function == 0xffff) ?
4049 			 0 : (1 << (fcoe_other_function))));
4050 
4051 	/* We are the reset owner iff:
4052 	 *    - No other protocol drivers present.
4053 	 *    - This is the lowest among fcoe functions. */
4054 	if (!(drv_presence & drv_presence_mask) &&
4055 			(ha->portnum < fcoe_other_function)) {
4056 		ql_dbg(ql_dbg_p3p, vha, 0xb07f,
4057 		    "This host is Reset owner.\n");
4058 		ha->flags.nic_core_reset_owner = 1;
4059 	}
4060 }
4061 
4062 static int
4063 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
4064 {
4065 	int rval = QLA_SUCCESS;
4066 	struct qla_hw_data *ha = vha->hw;
4067 	uint32_t drv_ack;
4068 
4069 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4070 	if (rval == QLA_SUCCESS) {
4071 		drv_ack |= (1 << ha->portnum);
4072 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
4073 	}
4074 
4075 	return rval;
4076 }
4077 
4078 static int
4079 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
4080 {
4081 	int rval = QLA_SUCCESS;
4082 	struct qla_hw_data *ha = vha->hw;
4083 	uint32_t drv_ack;
4084 
4085 	rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4086 	if (rval == QLA_SUCCESS) {
4087 		drv_ack &= ~(1 << ha->portnum);
4088 		rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
4089 	}
4090 
4091 	return rval;
4092 }
4093 
4094 static const char *
4095 qla83xx_dev_state_to_string(uint32_t dev_state)
4096 {
4097 	switch (dev_state) {
4098 	case QLA8XXX_DEV_COLD:
4099 		return "COLD/RE-INIT";
4100 	case QLA8XXX_DEV_INITIALIZING:
4101 		return "INITIALIZING";
4102 	case QLA8XXX_DEV_READY:
4103 		return "READY";
4104 	case QLA8XXX_DEV_NEED_RESET:
4105 		return "NEED RESET";
4106 	case QLA8XXX_DEV_NEED_QUIESCENT:
4107 		return "NEED QUIESCENT";
4108 	case QLA8XXX_DEV_FAILED:
4109 		return "FAILED";
4110 	case QLA8XXX_DEV_QUIESCENT:
4111 		return "QUIESCENT";
4112 	default:
4113 		return "Unknown";
4114 	}
4115 }
4116 
4117 /* Assumes idc-lock always held on entry */
4118 void
4119 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
4120 {
4121 	struct qla_hw_data *ha = vha->hw;
4122 	uint32_t idc_audit_reg = 0, duration_secs = 0;
4123 
4124 	switch (audit_type) {
4125 	case IDC_AUDIT_TIMESTAMP:
4126 		ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
4127 		idc_audit_reg = (ha->portnum) |
4128 		    (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
4129 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
4130 		break;
4131 
4132 	case IDC_AUDIT_COMPLETION:
4133 		duration_secs = ((jiffies_to_msecs(jiffies) -
4134 		    jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
4135 		idc_audit_reg = (ha->portnum) |
4136 		    (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
4137 		qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
4138 		break;
4139 
4140 	default:
4141 		ql_log(ql_log_warn, vha, 0xb078,
4142 		    "Invalid audit type specified.\n");
4143 		break;
4144 	}
4145 }
4146 
4147 /* Assumes idc_lock always held on entry */
4148 static int
4149 qla83xx_initiating_reset(scsi_qla_host_t *vha)
4150 {
4151 	struct qla_hw_data *ha = vha->hw;
4152 	uint32_t  idc_control, dev_state;
4153 
4154 	__qla83xx_get_idc_control(vha, &idc_control);
4155 	if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
4156 		ql_log(ql_log_info, vha, 0xb080,
4157 		    "NIC Core reset has been disabled. idc-control=0x%x\n",
4158 		    idc_control);
4159 		return QLA_FUNCTION_FAILED;
4160 	}
4161 
4162 	/* Set NEED-RESET iff in READY state and we are the reset-owner */
4163 	qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4164 	if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
4165 		qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
4166 		    QLA8XXX_DEV_NEED_RESET);
4167 		ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
4168 		qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
4169 	} else {
4170 		const char *state = qla83xx_dev_state_to_string(dev_state);
4171 		ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
4172 
4173 		/* SV: XXX: Is timeout required here? */
4174 		/* Wait for IDC state change READY -> NEED_RESET */
4175 		while (dev_state == QLA8XXX_DEV_READY) {
4176 			qla83xx_idc_unlock(vha, 0);
4177 			msleep(200);
4178 			qla83xx_idc_lock(vha, 0);
4179 			qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4180 		}
4181 	}
4182 
4183 	/* Send IDC ack by writing to drv-ack register */
4184 	__qla83xx_set_drv_ack(vha);
4185 
4186 	return QLA_SUCCESS;
4187 }
4188 
4189 int
4190 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
4191 {
4192 	return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
4193 }
4194 
4195 int
4196 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
4197 {
4198 	return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
4199 }
4200 
4201 static int
4202 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
4203 {
4204 	uint32_t drv_presence = 0;
4205 	struct qla_hw_data *ha = vha->hw;
4206 
4207 	qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4208 	if (drv_presence & (1 << ha->portnum))
4209 		return QLA_SUCCESS;
4210 	else
4211 		return QLA_TEST_FAILED;
4212 }
4213 
4214 int
4215 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
4216 {
4217 	int rval = QLA_SUCCESS;
4218 	struct qla_hw_data *ha = vha->hw;
4219 
4220 	ql_dbg(ql_dbg_p3p, vha, 0xb058,
4221 	    "Entered  %s().\n", __func__);
4222 
4223 	if (vha->device_flags & DFLG_DEV_FAILED) {
4224 		ql_log(ql_log_warn, vha, 0xb059,
4225 		    "Device in unrecoverable FAILED state.\n");
4226 		return QLA_FUNCTION_FAILED;
4227 	}
4228 
4229 	qla83xx_idc_lock(vha, 0);
4230 
4231 	if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
4232 		ql_log(ql_log_warn, vha, 0xb05a,
4233 		    "Function=0x%x has been removed from IDC participation.\n",
4234 		    ha->portnum);
4235 		rval = QLA_FUNCTION_FAILED;
4236 		goto exit;
4237 	}
4238 
4239 	qla83xx_reset_ownership(vha);
4240 
4241 	rval = qla83xx_initiating_reset(vha);
4242 
4243 	/*
4244 	 * Perform reset if we are the reset-owner,
4245 	 * else wait till IDC state changes to READY/FAILED.
4246 	 */
4247 	if (rval == QLA_SUCCESS) {
4248 		rval = qla83xx_idc_state_handler(vha);
4249 
4250 		if (rval == QLA_SUCCESS)
4251 			ha->flags.nic_core_hung = 0;
4252 		__qla83xx_clear_drv_ack(vha);
4253 	}
4254 
4255 exit:
4256 	qla83xx_idc_unlock(vha, 0);
4257 
4258 	ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
4259 
4260 	return rval;
4261 }
4262 
4263 int
4264 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
4265 {
4266 	struct qla_hw_data *ha = vha->hw;
4267 	int rval = QLA_FUNCTION_FAILED;
4268 
4269 	if (!IS_MCTP_CAPABLE(ha)) {
4270 		/* This message can be removed from the final version */
4271 		ql_log(ql_log_info, vha, 0x506d,
4272 		    "This board is not MCTP capable\n");
4273 		return rval;
4274 	}
4275 
4276 	if (!ha->mctp_dump) {
4277 		ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
4278 		    MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
4279 
4280 		if (!ha->mctp_dump) {
4281 			ql_log(ql_log_warn, vha, 0x506e,
4282 			    "Failed to allocate memory for mctp dump\n");
4283 			return rval;
4284 		}
4285 	}
4286 
4287 #define MCTP_DUMP_STR_ADDR	0x00000000
4288 	rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
4289 	    MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
4290 	if (rval != QLA_SUCCESS) {
4291 		ql_log(ql_log_warn, vha, 0x506f,
4292 		    "Failed to capture mctp dump\n");
4293 	} else {
4294 		ql_log(ql_log_info, vha, 0x5070,
4295 		    "Mctp dump capture for host (%ld/%p).\n",
4296 		    vha->host_no, ha->mctp_dump);
4297 		ha->mctp_dumped = 1;
4298 	}
4299 
4300 	if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
4301 		ha->flags.nic_core_reset_hdlr_active = 1;
4302 		rval = qla83xx_restart_nic_firmware(vha);
4303 		if (rval)
4304 			/* NIC Core reset failed. */
4305 			ql_log(ql_log_warn, vha, 0x5071,
4306 			    "Failed to restart nic firmware\n");
4307 		else
4308 			ql_dbg(ql_dbg_p3p, vha, 0xb084,
4309 			    "Restarted NIC firmware successfully.\n");
4310 		ha->flags.nic_core_reset_hdlr_active = 0;
4311 	}
4312 
4313 	return rval;
4314 
4315 }
4316 
4317 /*
4318 * qla2x00_quiesce_io
4319 * Description: This function will block the new I/Os
4320 *              Its not aborting any I/Os as context
4321 *              is not destroyed during quiescence
4322 * Arguments: scsi_qla_host_t
4323 * return   : void
4324 */
4325 void
4326 qla2x00_quiesce_io(scsi_qla_host_t *vha)
4327 {
4328 	struct qla_hw_data *ha = vha->hw;
4329 	struct scsi_qla_host *vp;
4330 
4331 	ql_dbg(ql_dbg_dpc, vha, 0x401d,
4332 	    "Quiescing I/O - ha=%p.\n", ha);
4333 
4334 	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
4335 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
4336 		atomic_set(&vha->loop_state, LOOP_DOWN);
4337 		qla2x00_mark_all_devices_lost(vha, 0);
4338 		list_for_each_entry(vp, &ha->vp_list, list)
4339 			qla2x00_mark_all_devices_lost(vp, 0);
4340 	} else {
4341 		if (!atomic_read(&vha->loop_down_timer))
4342 			atomic_set(&vha->loop_down_timer,
4343 					LOOP_DOWN_TIME);
4344 	}
4345 	/* Wait for pending cmds to complete */
4346 	qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST);
4347 }
4348 
4349 void
4350 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
4351 {
4352 	struct qla_hw_data *ha = vha->hw;
4353 	struct scsi_qla_host *vp;
4354 	unsigned long flags;
4355 	fc_port_t *fcport;
4356 
4357 	/* For ISP82XX, driver waits for completion of the commands.
4358 	 * online flag should be set.
4359 	 */
4360 	if (!(IS_P3P_TYPE(ha)))
4361 		vha->flags.online = 0;
4362 	ha->flags.chip_reset_done = 0;
4363 	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4364 	vha->qla_stats.total_isp_aborts++;
4365 
4366 	ql_log(ql_log_info, vha, 0x00af,
4367 	    "Performing ISP error recovery - ha=%p.\n", ha);
4368 
4369 	/* For ISP82XX, reset_chip is just disabling interrupts.
4370 	 * Driver waits for the completion of the commands.
4371 	 * the interrupts need to be enabled.
4372 	 */
4373 	if (!(IS_P3P_TYPE(ha)))
4374 		ha->isp_ops->reset_chip(vha);
4375 
4376 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
4377 	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
4378 		atomic_set(&vha->loop_state, LOOP_DOWN);
4379 		qla2x00_mark_all_devices_lost(vha, 0);
4380 
4381 		spin_lock_irqsave(&ha->vport_slock, flags);
4382 		list_for_each_entry(vp, &ha->vp_list, list) {
4383 			atomic_inc(&vp->vref_count);
4384 			spin_unlock_irqrestore(&ha->vport_slock, flags);
4385 
4386 			qla2x00_mark_all_devices_lost(vp, 0);
4387 
4388 			spin_lock_irqsave(&ha->vport_slock, flags);
4389 			atomic_dec(&vp->vref_count);
4390 		}
4391 		spin_unlock_irqrestore(&ha->vport_slock, flags);
4392 	} else {
4393 		if (!atomic_read(&vha->loop_down_timer))
4394 			atomic_set(&vha->loop_down_timer,
4395 			    LOOP_DOWN_TIME);
4396 	}
4397 
4398 	/* Clear all async request states across all VPs. */
4399 	list_for_each_entry(fcport, &vha->vp_fcports, list)
4400 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
4401 	spin_lock_irqsave(&ha->vport_slock, flags);
4402 	list_for_each_entry(vp, &ha->vp_list, list) {
4403 		atomic_inc(&vp->vref_count);
4404 		spin_unlock_irqrestore(&ha->vport_slock, flags);
4405 
4406 		list_for_each_entry(fcport, &vp->vp_fcports, list)
4407 			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
4408 
4409 		spin_lock_irqsave(&ha->vport_slock, flags);
4410 		atomic_dec(&vp->vref_count);
4411 	}
4412 	spin_unlock_irqrestore(&ha->vport_slock, flags);
4413 
4414 	if (!ha->flags.eeh_busy) {
4415 		/* Make sure for ISP 82XX IO DMA is complete */
4416 		if (IS_P3P_TYPE(ha)) {
4417 			qla82xx_chip_reset_cleanup(vha);
4418 			ql_log(ql_log_info, vha, 0x00b4,
4419 			    "Done chip reset cleanup.\n");
4420 
4421 			/* Done waiting for pending commands.
4422 			 * Reset the online flag.
4423 			 */
4424 			vha->flags.online = 0;
4425 		}
4426 
4427 		/* Requeue all commands in outstanding command list. */
4428 		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
4429 	}
4430 }
4431 
4432 /*
4433 *  qla2x00_abort_isp
4434 *      Resets ISP and aborts all outstanding commands.
4435 *
4436 * Input:
4437 *      ha           = adapter block pointer.
4438 *
4439 * Returns:
4440 *      0 = success
4441 */
4442 int
4443 qla2x00_abort_isp(scsi_qla_host_t *vha)
4444 {
4445 	int rval;
4446 	uint8_t        status = 0;
4447 	struct qla_hw_data *ha = vha->hw;
4448 	struct scsi_qla_host *vp;
4449 	struct req_que *req = ha->req_q_map[0];
4450 	unsigned long flags;
4451 
4452 	if (vha->flags.online) {
4453 		qla2x00_abort_isp_cleanup(vha);
4454 
4455 		if (IS_QLA8031(ha)) {
4456 			ql_dbg(ql_dbg_p3p, vha, 0xb05c,
4457 			    "Clearing fcoe driver presence.\n");
4458 			if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
4459 				ql_dbg(ql_dbg_p3p, vha, 0xb073,
4460 				    "Error while clearing DRV-Presence.\n");
4461 		}
4462 
4463 		if (unlikely(pci_channel_offline(ha->pdev) &&
4464 		    ha->flags.pci_channel_io_perm_failure)) {
4465 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4466 			status = 0;
4467 			return status;
4468 		}
4469 
4470 		ha->isp_ops->get_flash_version(vha, req->ring);
4471 
4472 		ha->isp_ops->nvram_config(vha);
4473 
4474 		if (!qla2x00_restart_isp(vha)) {
4475 			clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4476 
4477 			if (!atomic_read(&vha->loop_down_timer)) {
4478 				/*
4479 				 * Issue marker command only when we are going
4480 				 * to start the I/O .
4481 				 */
4482 				vha->marker_needed = 1;
4483 			}
4484 
4485 			vha->flags.online = 1;
4486 
4487 			ha->isp_ops->enable_intrs(ha);
4488 
4489 			ha->isp_abort_cnt = 0;
4490 			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4491 
4492 			if (IS_QLA81XX(ha) || IS_QLA8031(ha))
4493 				qla2x00_get_fw_version(vha);
4494 			if (ha->fce) {
4495 				ha->flags.fce_enabled = 1;
4496 				memset(ha->fce, 0,
4497 				    fce_calc_size(ha->fce_bufs));
4498 				rval = qla2x00_enable_fce_trace(vha,
4499 				    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
4500 				    &ha->fce_bufs);
4501 				if (rval) {
4502 					ql_log(ql_log_warn, vha, 0x8033,
4503 					    "Unable to reinitialize FCE "
4504 					    "(%d).\n", rval);
4505 					ha->flags.fce_enabled = 0;
4506 				}
4507 			}
4508 
4509 			if (ha->eft) {
4510 				memset(ha->eft, 0, EFT_SIZE);
4511 				rval = qla2x00_enable_eft_trace(vha,
4512 				    ha->eft_dma, EFT_NUM_BUFFERS);
4513 				if (rval) {
4514 					ql_log(ql_log_warn, vha, 0x8034,
4515 					    "Unable to reinitialize EFT "
4516 					    "(%d).\n", rval);
4517 				}
4518 			}
4519 		} else {	/* failed the ISP abort */
4520 			vha->flags.online = 1;
4521 			if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
4522 				if (ha->isp_abort_cnt == 0) {
4523 					ql_log(ql_log_fatal, vha, 0x8035,
4524 					    "ISP error recover failed - "
4525 					    "board disabled.\n");
4526 					/*
4527 					 * The next call disables the board
4528 					 * completely.
4529 					 */
4530 					ha->isp_ops->reset_adapter(vha);
4531 					vha->flags.online = 0;
4532 					clear_bit(ISP_ABORT_RETRY,
4533 					    &vha->dpc_flags);
4534 					status = 0;
4535 				} else { /* schedule another ISP abort */
4536 					ha->isp_abort_cnt--;
4537 					ql_dbg(ql_dbg_taskm, vha, 0x8020,
4538 					    "ISP abort - retry remaining %d.\n",
4539 					    ha->isp_abort_cnt);
4540 					status = 1;
4541 				}
4542 			} else {
4543 				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
4544 				ql_dbg(ql_dbg_taskm, vha, 0x8021,
4545 				    "ISP error recovery - retrying (%d) "
4546 				    "more times.\n", ha->isp_abort_cnt);
4547 				set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4548 				status = 1;
4549 			}
4550 		}
4551 
4552 	}
4553 
4554 	if (!status) {
4555 		ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
4556 
4557 		spin_lock_irqsave(&ha->vport_slock, flags);
4558 		list_for_each_entry(vp, &ha->vp_list, list) {
4559 			if (vp->vp_idx) {
4560 				atomic_inc(&vp->vref_count);
4561 				spin_unlock_irqrestore(&ha->vport_slock, flags);
4562 
4563 				qla2x00_vp_abort_isp(vp);
4564 
4565 				spin_lock_irqsave(&ha->vport_slock, flags);
4566 				atomic_dec(&vp->vref_count);
4567 			}
4568 		}
4569 		spin_unlock_irqrestore(&ha->vport_slock, flags);
4570 
4571 		if (IS_QLA8031(ha)) {
4572 			ql_dbg(ql_dbg_p3p, vha, 0xb05d,
4573 			    "Setting back fcoe driver presence.\n");
4574 			if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
4575 				ql_dbg(ql_dbg_p3p, vha, 0xb074,
4576 				    "Error while setting DRV-Presence.\n");
4577 		}
4578 	} else {
4579 		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
4580 		       __func__);
4581 	}
4582 
4583 	return(status);
4584 }
4585 
4586 /*
4587 *  qla2x00_restart_isp
4588 *      restarts the ISP after a reset
4589 *
4590 * Input:
4591 *      ha = adapter block pointer.
4592 *
4593 * Returns:
4594 *      0 = success
4595 */
4596 static int
4597 qla2x00_restart_isp(scsi_qla_host_t *vha)
4598 {
4599 	int status = 0;
4600 	uint32_t wait_time;
4601 	struct qla_hw_data *ha = vha->hw;
4602 	struct req_que *req = ha->req_q_map[0];
4603 	struct rsp_que *rsp = ha->rsp_q_map[0];
4604 	unsigned long flags;
4605 
4606 	/* If firmware needs to be loaded */
4607 	if (qla2x00_isp_firmware(vha)) {
4608 		vha->flags.online = 0;
4609 		status = ha->isp_ops->chip_diag(vha);
4610 		if (!status)
4611 			status = qla2x00_setup_chip(vha);
4612 	}
4613 
4614 	if (!status && !(status = qla2x00_init_rings(vha))) {
4615 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4616 		ha->flags.chip_reset_done = 1;
4617 		/* Initialize the queues in use */
4618 		qla25xx_init_queues(ha);
4619 
4620 		status = qla2x00_fw_ready(vha);
4621 		if (!status) {
4622 			ql_dbg(ql_dbg_taskm, vha, 0x8031,
4623 			    "Start configure loop status = %d.\n", status);
4624 
4625 			/* Issue a marker after FW becomes ready. */
4626 			qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
4627 
4628 			vha->flags.online = 1;
4629 
4630 			/*
4631 			 * Process any ATIO queue entries that came in
4632 			 * while we weren't online.
4633 			 */
4634 			spin_lock_irqsave(&ha->hardware_lock, flags);
4635 			if (qla_tgt_mode_enabled(vha))
4636 				qlt_24xx_process_atio_queue(vha);
4637 			spin_unlock_irqrestore(&ha->hardware_lock, flags);
4638 
4639 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
4640 			wait_time = 256;
4641 			do {
4642 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4643 				qla2x00_configure_loop(vha);
4644 				wait_time--;
4645 			} while (!atomic_read(&vha->loop_down_timer) &&
4646 				!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
4647 				&& wait_time && (test_bit(LOOP_RESYNC_NEEDED,
4648 				&vha->dpc_flags)));
4649 		}
4650 
4651 		/* if no cable then assume it's good */
4652 		if ((vha->device_flags & DFLG_NO_CABLE))
4653 			status = 0;
4654 
4655 		ql_dbg(ql_dbg_taskm, vha, 0x8032,
4656 		    "Configure loop done, status = 0x%x.\n", status);
4657 	}
4658 	return (status);
4659 }
4660 
4661 static int
4662 qla25xx_init_queues(struct qla_hw_data *ha)
4663 {
4664 	struct rsp_que *rsp = NULL;
4665 	struct req_que *req = NULL;
4666 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
4667 	int ret = -1;
4668 	int i;
4669 
4670 	for (i = 1; i < ha->max_rsp_queues; i++) {
4671 		rsp = ha->rsp_q_map[i];
4672 		if (rsp) {
4673 			rsp->options &= ~BIT_0;
4674 			ret = qla25xx_init_rsp_que(base_vha, rsp);
4675 			if (ret != QLA_SUCCESS)
4676 				ql_dbg(ql_dbg_init, base_vha, 0x00ff,
4677 				    "%s Rsp que: %d init failed.\n",
4678 				    __func__, rsp->id);
4679 			else
4680 				ql_dbg(ql_dbg_init, base_vha, 0x0100,
4681 				    "%s Rsp que: %d inited.\n",
4682 				    __func__, rsp->id);
4683 		}
4684 	}
4685 	for (i = 1; i < ha->max_req_queues; i++) {
4686 		req = ha->req_q_map[i];
4687 		if (req) {
4688 		/* Clear outstanding commands array. */
4689 			req->options &= ~BIT_0;
4690 			ret = qla25xx_init_req_que(base_vha, req);
4691 			if (ret != QLA_SUCCESS)
4692 				ql_dbg(ql_dbg_init, base_vha, 0x0101,
4693 				    "%s Req que: %d init failed.\n",
4694 				    __func__, req->id);
4695 			else
4696 				ql_dbg(ql_dbg_init, base_vha, 0x0102,
4697 				    "%s Req que: %d inited.\n",
4698 				    __func__, req->id);
4699 		}
4700 	}
4701 	return ret;
4702 }
4703 
4704 /*
4705 * qla2x00_reset_adapter
4706 *      Reset adapter.
4707 *
4708 * Input:
4709 *      ha = adapter block pointer.
4710 */
4711 void
4712 qla2x00_reset_adapter(scsi_qla_host_t *vha)
4713 {
4714 	unsigned long flags = 0;
4715 	struct qla_hw_data *ha = vha->hw;
4716 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4717 
4718 	vha->flags.online = 0;
4719 	ha->isp_ops->disable_intrs(ha);
4720 
4721 	spin_lock_irqsave(&ha->hardware_lock, flags);
4722 	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
4723 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
4724 	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
4725 	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
4726 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4727 }
4728 
4729 void
4730 qla24xx_reset_adapter(scsi_qla_host_t *vha)
4731 {
4732 	unsigned long flags = 0;
4733 	struct qla_hw_data *ha = vha->hw;
4734 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
4735 
4736 	if (IS_P3P_TYPE(ha))
4737 		return;
4738 
4739 	vha->flags.online = 0;
4740 	ha->isp_ops->disable_intrs(ha);
4741 
4742 	spin_lock_irqsave(&ha->hardware_lock, flags);
4743 	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
4744 	RD_REG_DWORD(&reg->hccr);
4745 	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
4746 	RD_REG_DWORD(&reg->hccr);
4747 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
4748 
4749 	if (IS_NOPOLLING_TYPE(ha))
4750 		ha->isp_ops->enable_intrs(ha);
4751 }
4752 
4753 /* On sparc systems, obtain port and node WWN from firmware
4754  * properties.
4755  */
4756 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
4757 	struct nvram_24xx *nv)
4758 {
4759 #ifdef CONFIG_SPARC
4760 	struct qla_hw_data *ha = vha->hw;
4761 	struct pci_dev *pdev = ha->pdev;
4762 	struct device_node *dp = pci_device_to_OF_node(pdev);
4763 	const u8 *val;
4764 	int len;
4765 
4766 	val = of_get_property(dp, "port-wwn", &len);
4767 	if (val && len >= WWN_SIZE)
4768 		memcpy(nv->port_name, val, WWN_SIZE);
4769 
4770 	val = of_get_property(dp, "node-wwn", &len);
4771 	if (val && len >= WWN_SIZE)
4772 		memcpy(nv->node_name, val, WWN_SIZE);
4773 #endif
4774 }
4775 
4776 int
4777 qla24xx_nvram_config(scsi_qla_host_t *vha)
4778 {
4779 	int   rval;
4780 	struct init_cb_24xx *icb;
4781 	struct nvram_24xx *nv;
4782 	uint32_t *dptr;
4783 	uint8_t  *dptr1, *dptr2;
4784 	uint32_t chksum;
4785 	uint16_t cnt;
4786 	struct qla_hw_data *ha = vha->hw;
4787 
4788 	rval = QLA_SUCCESS;
4789 	icb = (struct init_cb_24xx *)ha->init_cb;
4790 	nv = ha->nvram;
4791 
4792 	/* Determine NVRAM starting address. */
4793 	if (ha->flags.port0) {
4794 		ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
4795 		ha->vpd_base = FA_NVRAM_VPD0_ADDR;
4796 	} else {
4797 		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
4798 		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
4799 	}
4800 	ha->nvram_size = sizeof(struct nvram_24xx);
4801 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
4802 
4803 	/* Get VPD data into cache */
4804 	ha->vpd = ha->nvram + VPD_OFFSET;
4805 	ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd,
4806 	    ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
4807 
4808 	/* Get NVRAM data into cache and calculate checksum. */
4809 	dptr = (uint32_t *)nv;
4810 	ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base,
4811 	    ha->nvram_size);
4812 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
4813 		chksum += le32_to_cpu(*dptr++);
4814 
4815 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
4816 	    "Contents of NVRAM\n");
4817 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
4818 	    (uint8_t *)nv, ha->nvram_size);
4819 
4820 	/* Bad NVRAM data, set defaults parameters. */
4821 	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
4822 	    || nv->id[3] != ' ' ||
4823 	    nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
4824 		/* Reset NVRAM data. */
4825 		ql_log(ql_log_warn, vha, 0x006b,
4826 		    "Inconsistent NVRAM detected: checksum=0x%x id=%c "
4827 		    "version=0x%x.\n", chksum, nv->id[0], nv->nvram_version);
4828 		ql_log(ql_log_warn, vha, 0x006c,
4829 		    "Falling back to functioning (yet invalid -- WWPN) "
4830 		    "defaults.\n");
4831 
4832 		/*
4833 		 * Set default initialization control block.
4834 		 */
4835 		memset(nv, 0, ha->nvram_size);
4836 		nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
4837 		nv->version = __constant_cpu_to_le16(ICB_VERSION);
4838 		nv->frame_payload_size = __constant_cpu_to_le16(2048);
4839 		nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4840 		nv->exchange_count = __constant_cpu_to_le16(0);
4841 		nv->hard_address = __constant_cpu_to_le16(124);
4842 		nv->port_name[0] = 0x21;
4843 		nv->port_name[1] = 0x00 + ha->port_no;
4844 		nv->port_name[2] = 0x00;
4845 		nv->port_name[3] = 0xe0;
4846 		nv->port_name[4] = 0x8b;
4847 		nv->port_name[5] = 0x1c;
4848 		nv->port_name[6] = 0x55;
4849 		nv->port_name[7] = 0x86;
4850 		nv->node_name[0] = 0x20;
4851 		nv->node_name[1] = 0x00;
4852 		nv->node_name[2] = 0x00;
4853 		nv->node_name[3] = 0xe0;
4854 		nv->node_name[4] = 0x8b;
4855 		nv->node_name[5] = 0x1c;
4856 		nv->node_name[6] = 0x55;
4857 		nv->node_name[7] = 0x86;
4858 		qla24xx_nvram_wwn_from_ofw(vha, nv);
4859 		nv->login_retry_count = __constant_cpu_to_le16(8);
4860 		nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
4861 		nv->login_timeout = __constant_cpu_to_le16(0);
4862 		nv->firmware_options_1 =
4863 		    __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
4864 		nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
4865 		nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
4866 		nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
4867 		nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
4868 		nv->efi_parameters = __constant_cpu_to_le32(0);
4869 		nv->reset_delay = 5;
4870 		nv->max_luns_per_target = __constant_cpu_to_le16(128);
4871 		nv->port_down_retry_count = __constant_cpu_to_le16(30);
4872 		nv->link_down_timeout = __constant_cpu_to_le16(30);
4873 
4874 		rval = 1;
4875 	}
4876 
4877 	if (!qla_ini_mode_enabled(vha)) {
4878 		/* Don't enable full login after initial LIP */
4879 		nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
4880 		/* Don't enable LIP full login for initiator */
4881 		nv->host_p &= __constant_cpu_to_le32(~BIT_10);
4882 	}
4883 
4884 	qlt_24xx_config_nvram_stage1(vha, nv);
4885 
4886 	/* Reset Initialization control block */
4887 	memset(icb, 0, ha->init_cb_size);
4888 
4889 	/* Copy 1st segment. */
4890 	dptr1 = (uint8_t *)icb;
4891 	dptr2 = (uint8_t *)&nv->version;
4892 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
4893 	while (cnt--)
4894 		*dptr1++ = *dptr2++;
4895 
4896 	icb->login_retry_count = nv->login_retry_count;
4897 	icb->link_down_on_nos = nv->link_down_on_nos;
4898 
4899 	/* Copy 2nd segment. */
4900 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
4901 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
4902 	cnt = (uint8_t *)&icb->reserved_3 -
4903 	    (uint8_t *)&icb->interrupt_delay_timer;
4904 	while (cnt--)
4905 		*dptr1++ = *dptr2++;
4906 
4907 	/*
4908 	 * Setup driver NVRAM options.
4909 	 */
4910 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
4911 	    "QLA2462");
4912 
4913 	qlt_24xx_config_nvram_stage2(vha, icb);
4914 
4915 	if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
4916 		/* Use alternate WWN? */
4917 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4918 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4919 	}
4920 
4921 	/* Prepare nodename */
4922 	if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
4923 		/*
4924 		 * Firmware will apply the following mask if the nodename was
4925 		 * not provided.
4926 		 */
4927 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4928 		icb->node_name[0] &= 0xF0;
4929 	}
4930 
4931 	/* Set host adapter parameters. */
4932 	ha->flags.disable_risc_code_load = 0;
4933 	ha->flags.enable_lip_reset = 0;
4934 	ha->flags.enable_lip_full_login =
4935 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
4936 	ha->flags.enable_target_reset =
4937 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
4938 	ha->flags.enable_led_scheme = 0;
4939 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
4940 
4941 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
4942 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
4943 
4944 	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
4945 	    sizeof(ha->fw_seriallink_options24));
4946 
4947 	/* save HBA serial number */
4948 	ha->serial0 = icb->port_name[5];
4949 	ha->serial1 = icb->port_name[6];
4950 	ha->serial2 = icb->port_name[7];
4951 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4952 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4953 
4954 	icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4955 
4956 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
4957 
4958 	/* Set minimum login_timeout to 4 seconds. */
4959 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
4960 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
4961 	if (le16_to_cpu(nv->login_timeout) < 4)
4962 		nv->login_timeout = __constant_cpu_to_le16(4);
4963 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
4964 	icb->login_timeout = nv->login_timeout;
4965 
4966 	/* Set minimum RATOV to 100 tenths of a second. */
4967 	ha->r_a_tov = 100;
4968 
4969 	ha->loop_reset_delay = nv->reset_delay;
4970 
4971 	/* Link Down Timeout = 0:
4972 	 *
4973 	 * 	When Port Down timer expires we will start returning
4974 	 *	I/O's to OS with "DID_NO_CONNECT".
4975 	 *
4976 	 * Link Down Timeout != 0:
4977 	 *
4978 	 *	 The driver waits for the link to come up after link down
4979 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
4980 	 */
4981 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
4982 		ha->loop_down_abort_time =
4983 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4984 	} else {
4985 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
4986 		ha->loop_down_abort_time =
4987 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
4988 	}
4989 
4990 	/* Need enough time to try and get the port back. */
4991 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
4992 	if (qlport_down_retry)
4993 		ha->port_down_retry_count = qlport_down_retry;
4994 
4995 	/* Set login_retry_count */
4996 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
4997 	if (ha->port_down_retry_count ==
4998 	    le16_to_cpu(nv->port_down_retry_count) &&
4999 	    ha->port_down_retry_count > 3)
5000 		ha->login_retry_count = ha->port_down_retry_count;
5001 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
5002 		ha->login_retry_count = ha->port_down_retry_count;
5003 	if (ql2xloginretrycount)
5004 		ha->login_retry_count = ql2xloginretrycount;
5005 
5006 	/* Enable ZIO. */
5007 	if (!vha->flags.init_done) {
5008 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
5009 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
5010 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
5011 		    le16_to_cpu(icb->interrupt_delay_timer): 2;
5012 	}
5013 	icb->firmware_options_2 &= __constant_cpu_to_le32(
5014 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
5015 	vha->flags.process_response_queue = 0;
5016 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
5017 		ha->zio_mode = QLA_ZIO_MODE_6;
5018 
5019 		ql_log(ql_log_info, vha, 0x006f,
5020 		    "ZIO mode %d enabled; timer delay (%d us).\n",
5021 		    ha->zio_mode, ha->zio_timer * 100);
5022 
5023 		icb->firmware_options_2 |= cpu_to_le32(
5024 		    (uint32_t)ha->zio_mode);
5025 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
5026 		vha->flags.process_response_queue = 1;
5027 	}
5028 
5029 	if (rval) {
5030 		ql_log(ql_log_warn, vha, 0x0070,
5031 		    "NVRAM configuration failed.\n");
5032 	}
5033 	return (rval);
5034 }
5035 
5036 static int
5037 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
5038     uint32_t faddr)
5039 {
5040 	int	rval = QLA_SUCCESS;
5041 	int	segments, fragment;
5042 	uint32_t *dcode, dlen;
5043 	uint32_t risc_addr;
5044 	uint32_t risc_size;
5045 	uint32_t i;
5046 	struct qla_hw_data *ha = vha->hw;
5047 	struct req_que *req = ha->req_q_map[0];
5048 
5049 	ql_dbg(ql_dbg_init, vha, 0x008b,
5050 	    "FW: Loading firmware from flash (%x).\n", faddr);
5051 
5052 	rval = QLA_SUCCESS;
5053 
5054 	segments = FA_RISC_CODE_SEGMENTS;
5055 	dcode = (uint32_t *)req->ring;
5056 	*srisc_addr = 0;
5057 
5058 	/* Validate firmware image by checking version. */
5059 	qla24xx_read_flash_data(vha, dcode, faddr + 4, 4);
5060 	for (i = 0; i < 4; i++)
5061 		dcode[i] = be32_to_cpu(dcode[i]);
5062 	if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
5063 	    dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
5064 	    (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
5065 		dcode[3] == 0)) {
5066 		ql_log(ql_log_fatal, vha, 0x008c,
5067 		    "Unable to verify the integrity of flash firmware "
5068 		    "image.\n");
5069 		ql_log(ql_log_fatal, vha, 0x008d,
5070 		    "Firmware data: %08x %08x %08x %08x.\n",
5071 		    dcode[0], dcode[1], dcode[2], dcode[3]);
5072 
5073 		return QLA_FUNCTION_FAILED;
5074 	}
5075 
5076 	while (segments && rval == QLA_SUCCESS) {
5077 		/* Read segment's load information. */
5078 		qla24xx_read_flash_data(vha, dcode, faddr, 4);
5079 
5080 		risc_addr = be32_to_cpu(dcode[2]);
5081 		*srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
5082 		risc_size = be32_to_cpu(dcode[3]);
5083 
5084 		fragment = 0;
5085 		while (risc_size > 0 && rval == QLA_SUCCESS) {
5086 			dlen = (uint32_t)(ha->fw_transfer_size >> 2);
5087 			if (dlen > risc_size)
5088 				dlen = risc_size;
5089 
5090 			ql_dbg(ql_dbg_init, vha, 0x008e,
5091 			    "Loading risc segment@ risc addr %x "
5092 			    "number of dwords 0x%x offset 0x%x.\n",
5093 			    risc_addr, dlen, faddr);
5094 
5095 			qla24xx_read_flash_data(vha, dcode, faddr, dlen);
5096 			for (i = 0; i < dlen; i++)
5097 				dcode[i] = swab32(dcode[i]);
5098 
5099 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
5100 			    dlen);
5101 			if (rval) {
5102 				ql_log(ql_log_fatal, vha, 0x008f,
5103 				    "Failed to load segment %d of firmware.\n",
5104 				    fragment);
5105 				break;
5106 			}
5107 
5108 			faddr += dlen;
5109 			risc_addr += dlen;
5110 			risc_size -= dlen;
5111 			fragment++;
5112 		}
5113 
5114 		/* Next segment. */
5115 		segments--;
5116 	}
5117 
5118 	return rval;
5119 }
5120 
5121 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
5122 
5123 int
5124 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5125 {
5126 	int	rval;
5127 	int	i, fragment;
5128 	uint16_t *wcode, *fwcode;
5129 	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
5130 	struct fw_blob *blob;
5131 	struct qla_hw_data *ha = vha->hw;
5132 	struct req_que *req = ha->req_q_map[0];
5133 
5134 	/* Load firmware blob. */
5135 	blob = qla2x00_request_firmware(vha);
5136 	if (!blob) {
5137 		ql_log(ql_log_info, vha, 0x0083,
5138 		    "Fimware image unavailable.\n");
5139 		ql_log(ql_log_info, vha, 0x0084,
5140 		    "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
5141 		return QLA_FUNCTION_FAILED;
5142 	}
5143 
5144 	rval = QLA_SUCCESS;
5145 
5146 	wcode = (uint16_t *)req->ring;
5147 	*srisc_addr = 0;
5148 	fwcode = (uint16_t *)blob->fw->data;
5149 	fwclen = 0;
5150 
5151 	/* Validate firmware image by checking version. */
5152 	if (blob->fw->size < 8 * sizeof(uint16_t)) {
5153 		ql_log(ql_log_fatal, vha, 0x0085,
5154 		    "Unable to verify integrity of firmware image (%Zd).\n",
5155 		    blob->fw->size);
5156 		goto fail_fw_integrity;
5157 	}
5158 	for (i = 0; i < 4; i++)
5159 		wcode[i] = be16_to_cpu(fwcode[i + 4]);
5160 	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
5161 	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
5162 		wcode[2] == 0 && wcode[3] == 0)) {
5163 		ql_log(ql_log_fatal, vha, 0x0086,
5164 		    "Unable to verify integrity of firmware image.\n");
5165 		ql_log(ql_log_fatal, vha, 0x0087,
5166 		    "Firmware data: %04x %04x %04x %04x.\n",
5167 		    wcode[0], wcode[1], wcode[2], wcode[3]);
5168 		goto fail_fw_integrity;
5169 	}
5170 
5171 	seg = blob->segs;
5172 	while (*seg && rval == QLA_SUCCESS) {
5173 		risc_addr = *seg;
5174 		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
5175 		risc_size = be16_to_cpu(fwcode[3]);
5176 
5177 		/* Validate firmware image size. */
5178 		fwclen += risc_size * sizeof(uint16_t);
5179 		if (blob->fw->size < fwclen) {
5180 			ql_log(ql_log_fatal, vha, 0x0088,
5181 			    "Unable to verify integrity of firmware image "
5182 			    "(%Zd).\n", blob->fw->size);
5183 			goto fail_fw_integrity;
5184 		}
5185 
5186 		fragment = 0;
5187 		while (risc_size > 0 && rval == QLA_SUCCESS) {
5188 			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
5189 			if (wlen > risc_size)
5190 				wlen = risc_size;
5191 			ql_dbg(ql_dbg_init, vha, 0x0089,
5192 			    "Loading risc segment@ risc addr %x number of "
5193 			    "words 0x%x.\n", risc_addr, wlen);
5194 
5195 			for (i = 0; i < wlen; i++)
5196 				wcode[i] = swab16(fwcode[i]);
5197 
5198 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
5199 			    wlen);
5200 			if (rval) {
5201 				ql_log(ql_log_fatal, vha, 0x008a,
5202 				    "Failed to load segment %d of firmware.\n",
5203 				    fragment);
5204 				break;
5205 			}
5206 
5207 			fwcode += wlen;
5208 			risc_addr += wlen;
5209 			risc_size -= wlen;
5210 			fragment++;
5211 		}
5212 
5213 		/* Next segment. */
5214 		seg++;
5215 	}
5216 	return rval;
5217 
5218 fail_fw_integrity:
5219 	return QLA_FUNCTION_FAILED;
5220 }
5221 
5222 static int
5223 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5224 {
5225 	int	rval;
5226 	int	segments, fragment;
5227 	uint32_t *dcode, dlen;
5228 	uint32_t risc_addr;
5229 	uint32_t risc_size;
5230 	uint32_t i;
5231 	struct fw_blob *blob;
5232 	uint32_t *fwcode, fwclen;
5233 	struct qla_hw_data *ha = vha->hw;
5234 	struct req_que *req = ha->req_q_map[0];
5235 
5236 	/* Load firmware blob. */
5237 	blob = qla2x00_request_firmware(vha);
5238 	if (!blob) {
5239 		ql_log(ql_log_warn, vha, 0x0090,
5240 		    "Fimware image unavailable.\n");
5241 		ql_log(ql_log_warn, vha, 0x0091,
5242 		    "Firmware images can be retrieved from: "
5243 		    QLA_FW_URL ".\n");
5244 
5245 		return QLA_FUNCTION_FAILED;
5246 	}
5247 
5248 	ql_dbg(ql_dbg_init, vha, 0x0092,
5249 	    "FW: Loading via request-firmware.\n");
5250 
5251 	rval = QLA_SUCCESS;
5252 
5253 	segments = FA_RISC_CODE_SEGMENTS;
5254 	dcode = (uint32_t *)req->ring;
5255 	*srisc_addr = 0;
5256 	fwcode = (uint32_t *)blob->fw->data;
5257 	fwclen = 0;
5258 
5259 	/* Validate firmware image by checking version. */
5260 	if (blob->fw->size < 8 * sizeof(uint32_t)) {
5261 		ql_log(ql_log_fatal, vha, 0x0093,
5262 		    "Unable to verify integrity of firmware image (%Zd).\n",
5263 		    blob->fw->size);
5264 		goto fail_fw_integrity;
5265 	}
5266 	for (i = 0; i < 4; i++)
5267 		dcode[i] = be32_to_cpu(fwcode[i + 4]);
5268 	if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
5269 	    dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
5270 	    (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
5271 		dcode[3] == 0)) {
5272 		ql_log(ql_log_fatal, vha, 0x0094,
5273 		    "Unable to verify integrity of firmware image (%Zd).\n",
5274 		    blob->fw->size);
5275 		ql_log(ql_log_fatal, vha, 0x0095,
5276 		    "Firmware data: %08x %08x %08x %08x.\n",
5277 		    dcode[0], dcode[1], dcode[2], dcode[3]);
5278 		goto fail_fw_integrity;
5279 	}
5280 
5281 	while (segments && rval == QLA_SUCCESS) {
5282 		risc_addr = be32_to_cpu(fwcode[2]);
5283 		*srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
5284 		risc_size = be32_to_cpu(fwcode[3]);
5285 
5286 		/* Validate firmware image size. */
5287 		fwclen += risc_size * sizeof(uint32_t);
5288 		if (blob->fw->size < fwclen) {
5289 			ql_log(ql_log_fatal, vha, 0x0096,
5290 			    "Unable to verify integrity of firmware image "
5291 			    "(%Zd).\n", blob->fw->size);
5292 
5293 			goto fail_fw_integrity;
5294 		}
5295 
5296 		fragment = 0;
5297 		while (risc_size > 0 && rval == QLA_SUCCESS) {
5298 			dlen = (uint32_t)(ha->fw_transfer_size >> 2);
5299 			if (dlen > risc_size)
5300 				dlen = risc_size;
5301 
5302 			ql_dbg(ql_dbg_init, vha, 0x0097,
5303 			    "Loading risc segment@ risc addr %x "
5304 			    "number of dwords 0x%x.\n", risc_addr, dlen);
5305 
5306 			for (i = 0; i < dlen; i++)
5307 				dcode[i] = swab32(fwcode[i]);
5308 
5309 			rval = qla2x00_load_ram(vha, req->dma, risc_addr,
5310 			    dlen);
5311 			if (rval) {
5312 				ql_log(ql_log_fatal, vha, 0x0098,
5313 				    "Failed to load segment %d of firmware.\n",
5314 				    fragment);
5315 				break;
5316 			}
5317 
5318 			fwcode += dlen;
5319 			risc_addr += dlen;
5320 			risc_size -= dlen;
5321 			fragment++;
5322 		}
5323 
5324 		/* Next segment. */
5325 		segments--;
5326 	}
5327 	return rval;
5328 
5329 fail_fw_integrity:
5330 	return QLA_FUNCTION_FAILED;
5331 }
5332 
5333 int
5334 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5335 {
5336 	int rval;
5337 
5338 	if (ql2xfwloadbin == 1)
5339 		return qla81xx_load_risc(vha, srisc_addr);
5340 
5341 	/*
5342 	 * FW Load priority:
5343 	 * 1) Firmware via request-firmware interface (.bin file).
5344 	 * 2) Firmware residing in flash.
5345 	 */
5346 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
5347 	if (rval == QLA_SUCCESS)
5348 		return rval;
5349 
5350 	return qla24xx_load_risc_flash(vha, srisc_addr,
5351 	    vha->hw->flt_region_fw);
5352 }
5353 
5354 int
5355 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5356 {
5357 	int rval;
5358 	struct qla_hw_data *ha = vha->hw;
5359 
5360 	if (ql2xfwloadbin == 2)
5361 		goto try_blob_fw;
5362 
5363 	/*
5364 	 * FW Load priority:
5365 	 * 1) Firmware residing in flash.
5366 	 * 2) Firmware via request-firmware interface (.bin file).
5367 	 * 3) Golden-Firmware residing in flash -- limited operation.
5368 	 */
5369 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
5370 	if (rval == QLA_SUCCESS)
5371 		return rval;
5372 
5373 try_blob_fw:
5374 	rval = qla24xx_load_risc_blob(vha, srisc_addr);
5375 	if (rval == QLA_SUCCESS || !ha->flt_region_gold_fw)
5376 		return rval;
5377 
5378 	ql_log(ql_log_info, vha, 0x0099,
5379 	    "Attempting to fallback to golden firmware.\n");
5380 	rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
5381 	if (rval != QLA_SUCCESS)
5382 		return rval;
5383 
5384 	ql_log(ql_log_info, vha, 0x009a, "Update operational firmware.\n");
5385 	ha->flags.running_gold_fw = 1;
5386 	return rval;
5387 }
5388 
5389 void
5390 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
5391 {
5392 	int ret, retries;
5393 	struct qla_hw_data *ha = vha->hw;
5394 
5395 	if (ha->flags.pci_channel_io_perm_failure)
5396 		return;
5397 	if (!IS_FWI2_CAPABLE(ha))
5398 		return;
5399 	if (!ha->fw_major_version)
5400 		return;
5401 
5402 	ret = qla2x00_stop_firmware(vha);
5403 	for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
5404 	    ret != QLA_INVALID_COMMAND && retries ; retries--) {
5405 		ha->isp_ops->reset_chip(vha);
5406 		if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
5407 			continue;
5408 		if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
5409 			continue;
5410 		ql_log(ql_log_info, vha, 0x8015,
5411 		    "Attempting retry of stop-firmware command.\n");
5412 		ret = qla2x00_stop_firmware(vha);
5413 	}
5414 }
5415 
5416 int
5417 qla24xx_configure_vhba(scsi_qla_host_t *vha)
5418 {
5419 	int rval = QLA_SUCCESS;
5420 	int rval2;
5421 	uint16_t mb[MAILBOX_REGISTER_COUNT];
5422 	struct qla_hw_data *ha = vha->hw;
5423 	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5424 	struct req_que *req;
5425 	struct rsp_que *rsp;
5426 
5427 	if (!vha->vp_idx)
5428 		return -EINVAL;
5429 
5430 	rval = qla2x00_fw_ready(base_vha);
5431 	if (ha->flags.cpu_affinity_enabled)
5432 		req = ha->req_q_map[0];
5433 	else
5434 		req = vha->req;
5435 	rsp = req->rsp;
5436 
5437 	if (rval == QLA_SUCCESS) {
5438 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5439 		qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
5440 	}
5441 
5442 	vha->flags.management_server_logged_in = 0;
5443 
5444 	/* Login to SNS first */
5445 	rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
5446 	    BIT_1);
5447 	if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5448 		if (rval2 == QLA_MEMORY_ALLOC_FAILED)
5449 			ql_dbg(ql_dbg_init, vha, 0x0120,
5450 			    "Failed SNS login: loop_id=%x, rval2=%d\n",
5451 			    NPH_SNS, rval2);
5452 		else
5453 			ql_dbg(ql_dbg_init, vha, 0x0103,
5454 			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
5455 			    "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
5456 			    NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
5457 		return (QLA_FUNCTION_FAILED);
5458 	}
5459 
5460 	atomic_set(&vha->loop_down_timer, 0);
5461 	atomic_set(&vha->loop_state, LOOP_UP);
5462 	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5463 	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5464 	rval = qla2x00_loop_resync(base_vha);
5465 
5466 	return rval;
5467 }
5468 
5469 /* 84XX Support **************************************************************/
5470 
5471 static LIST_HEAD(qla_cs84xx_list);
5472 static DEFINE_MUTEX(qla_cs84xx_mutex);
5473 
5474 static struct qla_chip_state_84xx *
5475 qla84xx_get_chip(struct scsi_qla_host *vha)
5476 {
5477 	struct qla_chip_state_84xx *cs84xx;
5478 	struct qla_hw_data *ha = vha->hw;
5479 
5480 	mutex_lock(&qla_cs84xx_mutex);
5481 
5482 	/* Find any shared 84xx chip. */
5483 	list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
5484 		if (cs84xx->bus == ha->pdev->bus) {
5485 			kref_get(&cs84xx->kref);
5486 			goto done;
5487 		}
5488 	}
5489 
5490 	cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
5491 	if (!cs84xx)
5492 		goto done;
5493 
5494 	kref_init(&cs84xx->kref);
5495 	spin_lock_init(&cs84xx->access_lock);
5496 	mutex_init(&cs84xx->fw_update_mutex);
5497 	cs84xx->bus = ha->pdev->bus;
5498 
5499 	list_add_tail(&cs84xx->list, &qla_cs84xx_list);
5500 done:
5501 	mutex_unlock(&qla_cs84xx_mutex);
5502 	return cs84xx;
5503 }
5504 
5505 static void
5506 __qla84xx_chip_release(struct kref *kref)
5507 {
5508 	struct qla_chip_state_84xx *cs84xx =
5509 	    container_of(kref, struct qla_chip_state_84xx, kref);
5510 
5511 	mutex_lock(&qla_cs84xx_mutex);
5512 	list_del(&cs84xx->list);
5513 	mutex_unlock(&qla_cs84xx_mutex);
5514 	kfree(cs84xx);
5515 }
5516 
5517 void
5518 qla84xx_put_chip(struct scsi_qla_host *vha)
5519 {
5520 	struct qla_hw_data *ha = vha->hw;
5521 	if (ha->cs84xx)
5522 		kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
5523 }
5524 
5525 static int
5526 qla84xx_init_chip(scsi_qla_host_t *vha)
5527 {
5528 	int rval;
5529 	uint16_t status[2];
5530 	struct qla_hw_data *ha = vha->hw;
5531 
5532 	mutex_lock(&ha->cs84xx->fw_update_mutex);
5533 
5534 	rval = qla84xx_verify_chip(vha, status);
5535 
5536 	mutex_unlock(&ha->cs84xx->fw_update_mutex);
5537 
5538 	return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
5539 	    QLA_SUCCESS;
5540 }
5541 
5542 /* 81XX Support **************************************************************/
5543 
5544 int
5545 qla81xx_nvram_config(scsi_qla_host_t *vha)
5546 {
5547 	int   rval;
5548 	struct init_cb_81xx *icb;
5549 	struct nvram_81xx *nv;
5550 	uint32_t *dptr;
5551 	uint8_t  *dptr1, *dptr2;
5552 	uint32_t chksum;
5553 	uint16_t cnt;
5554 	struct qla_hw_data *ha = vha->hw;
5555 
5556 	rval = QLA_SUCCESS;
5557 	icb = (struct init_cb_81xx *)ha->init_cb;
5558 	nv = ha->nvram;
5559 
5560 	/* Determine NVRAM starting address. */
5561 	ha->nvram_size = sizeof(struct nvram_81xx);
5562 	ha->vpd_size = FA_NVRAM_VPD_SIZE;
5563 	if (IS_P3P_TYPE(ha) || IS_QLA8031(ha))
5564 		ha->vpd_size = FA_VPD_SIZE_82XX;
5565 
5566 	/* Get VPD data into cache */
5567 	ha->vpd = ha->nvram + VPD_OFFSET;
5568 	ha->isp_ops->read_optrom(vha, ha->vpd, ha->flt_region_vpd << 2,
5569 	    ha->vpd_size);
5570 
5571 	/* Get NVRAM data into cache and calculate checksum. */
5572 	ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
5573 	    ha->nvram_size);
5574 	dptr = (uint32_t *)nv;
5575 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
5576 		chksum += le32_to_cpu(*dptr++);
5577 
5578 	ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
5579 	    "Contents of NVRAM:\n");
5580 	ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
5581 	    (uint8_t *)nv, ha->nvram_size);
5582 
5583 	/* Bad NVRAM data, set defaults parameters. */
5584 	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
5585 	    || nv->id[3] != ' ' ||
5586 	    nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
5587 		/* Reset NVRAM data. */
5588 		ql_log(ql_log_info, vha, 0x0073,
5589 		    "Inconsistent NVRAM detected: checksum=0x%x id=%c "
5590 		    "version=0x%x.\n", chksum, nv->id[0],
5591 		    le16_to_cpu(nv->nvram_version));
5592 		ql_log(ql_log_info, vha, 0x0074,
5593 		    "Falling back to functioning (yet invalid -- WWPN) "
5594 		    "defaults.\n");
5595 
5596 		/*
5597 		 * Set default initialization control block.
5598 		 */
5599 		memset(nv, 0, ha->nvram_size);
5600 		nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
5601 		nv->version = __constant_cpu_to_le16(ICB_VERSION);
5602 		nv->frame_payload_size = __constant_cpu_to_le16(2048);
5603 		nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
5604 		nv->exchange_count = __constant_cpu_to_le16(0);
5605 		nv->port_name[0] = 0x21;
5606 		nv->port_name[1] = 0x00 + ha->port_no;
5607 		nv->port_name[2] = 0x00;
5608 		nv->port_name[3] = 0xe0;
5609 		nv->port_name[4] = 0x8b;
5610 		nv->port_name[5] = 0x1c;
5611 		nv->port_name[6] = 0x55;
5612 		nv->port_name[7] = 0x86;
5613 		nv->node_name[0] = 0x20;
5614 		nv->node_name[1] = 0x00;
5615 		nv->node_name[2] = 0x00;
5616 		nv->node_name[3] = 0xe0;
5617 		nv->node_name[4] = 0x8b;
5618 		nv->node_name[5] = 0x1c;
5619 		nv->node_name[6] = 0x55;
5620 		nv->node_name[7] = 0x86;
5621 		nv->login_retry_count = __constant_cpu_to_le16(8);
5622 		nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
5623 		nv->login_timeout = __constant_cpu_to_le16(0);
5624 		nv->firmware_options_1 =
5625 		    __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
5626 		nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
5627 		nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
5628 		nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
5629 		nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
5630 		nv->efi_parameters = __constant_cpu_to_le32(0);
5631 		nv->reset_delay = 5;
5632 		nv->max_luns_per_target = __constant_cpu_to_le16(128);
5633 		nv->port_down_retry_count = __constant_cpu_to_le16(30);
5634 		nv->link_down_timeout = __constant_cpu_to_le16(180);
5635 		nv->enode_mac[0] = 0x00;
5636 		nv->enode_mac[1] = 0xC0;
5637 		nv->enode_mac[2] = 0xDD;
5638 		nv->enode_mac[3] = 0x04;
5639 		nv->enode_mac[4] = 0x05;
5640 		nv->enode_mac[5] = 0x06 + ha->port_no;
5641 
5642 		rval = 1;
5643 	}
5644 
5645 	if (IS_T10_PI_CAPABLE(ha))
5646 		nv->frame_payload_size &= ~7;
5647 
5648 	qlt_81xx_config_nvram_stage1(vha, nv);
5649 
5650 	/* Reset Initialization control block */
5651 	memset(icb, 0, ha->init_cb_size);
5652 
5653 	/* Copy 1st segment. */
5654 	dptr1 = (uint8_t *)icb;
5655 	dptr2 = (uint8_t *)&nv->version;
5656 	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
5657 	while (cnt--)
5658 		*dptr1++ = *dptr2++;
5659 
5660 	icb->login_retry_count = nv->login_retry_count;
5661 
5662 	/* Copy 2nd segment. */
5663 	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
5664 	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
5665 	cnt = (uint8_t *)&icb->reserved_5 -
5666 	    (uint8_t *)&icb->interrupt_delay_timer;
5667 	while (cnt--)
5668 		*dptr1++ = *dptr2++;
5669 
5670 	memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
5671 	/* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
5672 	if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
5673 		icb->enode_mac[0] = 0x00;
5674 		icb->enode_mac[1] = 0xC0;
5675 		icb->enode_mac[2] = 0xDD;
5676 		icb->enode_mac[3] = 0x04;
5677 		icb->enode_mac[4] = 0x05;
5678 		icb->enode_mac[5] = 0x06 + ha->port_no;
5679 	}
5680 
5681 	/* Use extended-initialization control block. */
5682 	memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
5683 
5684 	/*
5685 	 * Setup driver NVRAM options.
5686 	 */
5687 	qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
5688 	    "QLE8XXX");
5689 
5690 	qlt_81xx_config_nvram_stage2(vha, icb);
5691 
5692 	/* Use alternate WWN? */
5693 	if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
5694 		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
5695 		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
5696 	}
5697 
5698 	/* Prepare nodename */
5699 	if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
5700 		/*
5701 		 * Firmware will apply the following mask if the nodename was
5702 		 * not provided.
5703 		 */
5704 		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
5705 		icb->node_name[0] &= 0xF0;
5706 	}
5707 
5708 	/* Set host adapter parameters. */
5709 	ha->flags.disable_risc_code_load = 0;
5710 	ha->flags.enable_lip_reset = 0;
5711 	ha->flags.enable_lip_full_login =
5712 	    le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
5713 	ha->flags.enable_target_reset =
5714 	    le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
5715 	ha->flags.enable_led_scheme = 0;
5716 	ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
5717 
5718 	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
5719 	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
5720 
5721 	/* save HBA serial number */
5722 	ha->serial0 = icb->port_name[5];
5723 	ha->serial1 = icb->port_name[6];
5724 	ha->serial2 = icb->port_name[7];
5725 	memcpy(vha->node_name, icb->node_name, WWN_SIZE);
5726 	memcpy(vha->port_name, icb->port_name, WWN_SIZE);
5727 
5728 	icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
5729 
5730 	ha->retry_count = le16_to_cpu(nv->login_retry_count);
5731 
5732 	/* Set minimum login_timeout to 4 seconds. */
5733 	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
5734 		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
5735 	if (le16_to_cpu(nv->login_timeout) < 4)
5736 		nv->login_timeout = __constant_cpu_to_le16(4);
5737 	ha->login_timeout = le16_to_cpu(nv->login_timeout);
5738 	icb->login_timeout = nv->login_timeout;
5739 
5740 	/* Set minimum RATOV to 100 tenths of a second. */
5741 	ha->r_a_tov = 100;
5742 
5743 	ha->loop_reset_delay = nv->reset_delay;
5744 
5745 	/* Link Down Timeout = 0:
5746 	 *
5747 	 *	When Port Down timer expires we will start returning
5748 	 *	I/O's to OS with "DID_NO_CONNECT".
5749 	 *
5750 	 * Link Down Timeout != 0:
5751 	 *
5752 	 *	 The driver waits for the link to come up after link down
5753 	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
5754 	 */
5755 	if (le16_to_cpu(nv->link_down_timeout) == 0) {
5756 		ha->loop_down_abort_time =
5757 		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
5758 	} else {
5759 		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
5760 		ha->loop_down_abort_time =
5761 		    (LOOP_DOWN_TIME - ha->link_down_timeout);
5762 	}
5763 
5764 	/* Need enough time to try and get the port back. */
5765 	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
5766 	if (qlport_down_retry)
5767 		ha->port_down_retry_count = qlport_down_retry;
5768 
5769 	/* Set login_retry_count */
5770 	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
5771 	if (ha->port_down_retry_count ==
5772 	    le16_to_cpu(nv->port_down_retry_count) &&
5773 	    ha->port_down_retry_count > 3)
5774 		ha->login_retry_count = ha->port_down_retry_count;
5775 	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
5776 		ha->login_retry_count = ha->port_down_retry_count;
5777 	if (ql2xloginretrycount)
5778 		ha->login_retry_count = ql2xloginretrycount;
5779 
5780 	/* if not running MSI-X we need handshaking on interrupts */
5781 	if (!vha->hw->flags.msix_enabled && IS_QLA83XX(ha))
5782 		icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_22);
5783 
5784 	/* Enable ZIO. */
5785 	if (!vha->flags.init_done) {
5786 		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
5787 		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
5788 		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
5789 		    le16_to_cpu(icb->interrupt_delay_timer): 2;
5790 	}
5791 	icb->firmware_options_2 &= __constant_cpu_to_le32(
5792 	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
5793 	vha->flags.process_response_queue = 0;
5794 	if (ha->zio_mode != QLA_ZIO_DISABLED) {
5795 		ha->zio_mode = QLA_ZIO_MODE_6;
5796 
5797 		ql_log(ql_log_info, vha, 0x0075,
5798 		    "ZIO mode %d enabled; timer delay (%d us).\n",
5799 		    ha->zio_mode,
5800 		    ha->zio_timer * 100);
5801 
5802 		icb->firmware_options_2 |= cpu_to_le32(
5803 		    (uint32_t)ha->zio_mode);
5804 		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
5805 		vha->flags.process_response_queue = 1;
5806 	}
5807 
5808 	if (rval) {
5809 		ql_log(ql_log_warn, vha, 0x0076,
5810 		    "NVRAM configuration failed.\n");
5811 	}
5812 	return (rval);
5813 }
5814 
5815 int
5816 qla82xx_restart_isp(scsi_qla_host_t *vha)
5817 {
5818 	int status, rval;
5819 	uint32_t wait_time;
5820 	struct qla_hw_data *ha = vha->hw;
5821 	struct req_que *req = ha->req_q_map[0];
5822 	struct rsp_que *rsp = ha->rsp_q_map[0];
5823 	struct scsi_qla_host *vp;
5824 	unsigned long flags;
5825 
5826 	status = qla2x00_init_rings(vha);
5827 	if (!status) {
5828 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5829 		ha->flags.chip_reset_done = 1;
5830 
5831 		status = qla2x00_fw_ready(vha);
5832 		if (!status) {
5833 			ql_log(ql_log_info, vha, 0x803c,
5834 			    "Start configure loop, status =%d.\n", status);
5835 
5836 			/* Issue a marker after FW becomes ready. */
5837 			qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
5838 
5839 			vha->flags.online = 1;
5840 			/* Wait at most MAX_TARGET RSCNs for a stable link. */
5841 			wait_time = 256;
5842 			do {
5843 				clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5844 				qla2x00_configure_loop(vha);
5845 				wait_time--;
5846 			} while (!atomic_read(&vha->loop_down_timer) &&
5847 			    !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) &&
5848 			    wait_time &&
5849 			    (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)));
5850 		}
5851 
5852 		/* if no cable then assume it's good */
5853 		if ((vha->device_flags & DFLG_NO_CABLE))
5854 			status = 0;
5855 
5856 		ql_log(ql_log_info, vha, 0x8000,
5857 		    "Configure loop done, status = 0x%x.\n", status);
5858 	}
5859 
5860 	if (!status) {
5861 		clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5862 
5863 		if (!atomic_read(&vha->loop_down_timer)) {
5864 			/*
5865 			 * Issue marker command only when we are going
5866 			 * to start the I/O .
5867 			 */
5868 			vha->marker_needed = 1;
5869 		}
5870 
5871 		vha->flags.online = 1;
5872 
5873 		ha->isp_ops->enable_intrs(ha);
5874 
5875 		ha->isp_abort_cnt = 0;
5876 		clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
5877 
5878 		/* Update the firmware version */
5879 		status = qla82xx_check_md_needed(vha);
5880 
5881 		if (ha->fce) {
5882 			ha->flags.fce_enabled = 1;
5883 			memset(ha->fce, 0,
5884 			    fce_calc_size(ha->fce_bufs));
5885 			rval = qla2x00_enable_fce_trace(vha,
5886 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
5887 			    &ha->fce_bufs);
5888 			if (rval) {
5889 				ql_log(ql_log_warn, vha, 0x8001,
5890 				    "Unable to reinitialize FCE (%d).\n",
5891 				    rval);
5892 				ha->flags.fce_enabled = 0;
5893 			}
5894 		}
5895 
5896 		if (ha->eft) {
5897 			memset(ha->eft, 0, EFT_SIZE);
5898 			rval = qla2x00_enable_eft_trace(vha,
5899 			    ha->eft_dma, EFT_NUM_BUFFERS);
5900 			if (rval) {
5901 				ql_log(ql_log_warn, vha, 0x8010,
5902 				    "Unable to reinitialize EFT (%d).\n",
5903 				    rval);
5904 			}
5905 		}
5906 	}
5907 
5908 	if (!status) {
5909 		ql_dbg(ql_dbg_taskm, vha, 0x8011,
5910 		    "qla82xx_restart_isp succeeded.\n");
5911 
5912 		spin_lock_irqsave(&ha->vport_slock, flags);
5913 		list_for_each_entry(vp, &ha->vp_list, list) {
5914 			if (vp->vp_idx) {
5915 				atomic_inc(&vp->vref_count);
5916 				spin_unlock_irqrestore(&ha->vport_slock, flags);
5917 
5918 				qla2x00_vp_abort_isp(vp);
5919 
5920 				spin_lock_irqsave(&ha->vport_slock, flags);
5921 				atomic_dec(&vp->vref_count);
5922 			}
5923 		}
5924 		spin_unlock_irqrestore(&ha->vport_slock, flags);
5925 
5926 	} else {
5927 		ql_log(ql_log_warn, vha, 0x8016,
5928 		    "qla82xx_restart_isp **** FAILED ****.\n");
5929 	}
5930 
5931 	return status;
5932 }
5933 
5934 void
5935 qla81xx_update_fw_options(scsi_qla_host_t *vha)
5936 {
5937 	struct qla_hw_data *ha = vha->hw;
5938 
5939 	if (!ql2xetsenable)
5940 		return;
5941 
5942 	/* Enable ETS Burst. */
5943 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
5944 	ha->fw_options[2] |= BIT_9;
5945 	qla2x00_set_fw_options(vha, ha->fw_options);
5946 }
5947 
5948 /*
5949  * qla24xx_get_fcp_prio
5950  *	Gets the fcp cmd priority value for the logged in port.
5951  *	Looks for a match of the port descriptors within
5952  *	each of the fcp prio config entries. If a match is found,
5953  *	the tag (priority) value is returned.
5954  *
5955  * Input:
5956  *	vha = scsi host structure pointer.
5957  *	fcport = port structure pointer.
5958  *
5959  * Return:
5960  *	non-zero (if found)
5961  *	-1 (if not found)
5962  *
5963  * Context:
5964  * 	Kernel context
5965  */
5966 static int
5967 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
5968 {
5969 	int i, entries;
5970 	uint8_t pid_match, wwn_match;
5971 	int priority;
5972 	uint32_t pid1, pid2;
5973 	uint64_t wwn1, wwn2;
5974 	struct qla_fcp_prio_entry *pri_entry;
5975 	struct qla_hw_data *ha = vha->hw;
5976 
5977 	if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
5978 		return -1;
5979 
5980 	priority = -1;
5981 	entries = ha->fcp_prio_cfg->num_entries;
5982 	pri_entry = &ha->fcp_prio_cfg->entry[0];
5983 
5984 	for (i = 0; i < entries; i++) {
5985 		pid_match = wwn_match = 0;
5986 
5987 		if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
5988 			pri_entry++;
5989 			continue;
5990 		}
5991 
5992 		/* check source pid for a match */
5993 		if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
5994 			pid1 = pri_entry->src_pid & INVALID_PORT_ID;
5995 			pid2 = vha->d_id.b24 & INVALID_PORT_ID;
5996 			if (pid1 == INVALID_PORT_ID)
5997 				pid_match++;
5998 			else if (pid1 == pid2)
5999 				pid_match++;
6000 		}
6001 
6002 		/* check destination pid for a match */
6003 		if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
6004 			pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
6005 			pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
6006 			if (pid1 == INVALID_PORT_ID)
6007 				pid_match++;
6008 			else if (pid1 == pid2)
6009 				pid_match++;
6010 		}
6011 
6012 		/* check source WWN for a match */
6013 		if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
6014 			wwn1 = wwn_to_u64(vha->port_name);
6015 			wwn2 = wwn_to_u64(pri_entry->src_wwpn);
6016 			if (wwn2 == (uint64_t)-1)
6017 				wwn_match++;
6018 			else if (wwn1 == wwn2)
6019 				wwn_match++;
6020 		}
6021 
6022 		/* check destination WWN for a match */
6023 		if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
6024 			wwn1 = wwn_to_u64(fcport->port_name);
6025 			wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
6026 			if (wwn2 == (uint64_t)-1)
6027 				wwn_match++;
6028 			else if (wwn1 == wwn2)
6029 				wwn_match++;
6030 		}
6031 
6032 		if (pid_match == 2 || wwn_match == 2) {
6033 			/* Found a matching entry */
6034 			if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
6035 				priority = pri_entry->tag;
6036 			break;
6037 		}
6038 
6039 		pri_entry++;
6040 	}
6041 
6042 	return priority;
6043 }
6044 
6045 /*
6046  * qla24xx_update_fcport_fcp_prio
6047  *	Activates fcp priority for the logged in fc port
6048  *
6049  * Input:
6050  *	vha = scsi host structure pointer.
6051  *	fcp = port structure pointer.
6052  *
6053  * Return:
6054  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
6055  *
6056  * Context:
6057  *	Kernel context.
6058  */
6059 int
6060 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
6061 {
6062 	int ret;
6063 	int priority;
6064 	uint16_t mb[5];
6065 
6066 	if (fcport->port_type != FCT_TARGET ||
6067 	    fcport->loop_id == FC_NO_LOOP_ID)
6068 		return QLA_FUNCTION_FAILED;
6069 
6070 	priority = qla24xx_get_fcp_prio(vha, fcport);
6071 	if (priority < 0)
6072 		return QLA_FUNCTION_FAILED;
6073 
6074 	if (IS_P3P_TYPE(vha->hw)) {
6075 		fcport->fcp_prio = priority & 0xf;
6076 		return QLA_SUCCESS;
6077 	}
6078 
6079 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
6080 	if (ret == QLA_SUCCESS) {
6081 		if (fcport->fcp_prio != priority)
6082 			ql_dbg(ql_dbg_user, vha, 0x709e,
6083 			    "Updated FCP_CMND priority - value=%d loop_id=%d "
6084 			    "port_id=%02x%02x%02x.\n", priority,
6085 			    fcport->loop_id, fcport->d_id.b.domain,
6086 			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
6087 		fcport->fcp_prio = priority & 0xf;
6088 	} else
6089 		ql_dbg(ql_dbg_user, vha, 0x704f,
6090 		    "Unable to update FCP_CMND priority - ret=0x%x for "
6091 		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
6092 		    fcport->d_id.b.domain, fcport->d_id.b.area,
6093 		    fcport->d_id.b.al_pa);
6094 	return  ret;
6095 }
6096 
6097 /*
6098  * qla24xx_update_all_fcp_prio
6099  *	Activates fcp priority for all the logged in ports
6100  *
6101  * Input:
6102  *	ha = adapter block pointer.
6103  *
6104  * Return:
6105  *	QLA_SUCCESS or QLA_FUNCTION_FAILED
6106  *
6107  * Context:
6108  *	Kernel context.
6109  */
6110 int
6111 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
6112 {
6113 	int ret;
6114 	fc_port_t *fcport;
6115 
6116 	ret = QLA_FUNCTION_FAILED;
6117 	/* We need to set priority for all logged in ports */
6118 	list_for_each_entry(fcport, &vha->vp_fcports, list)
6119 		ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
6120 
6121 	return ret;
6122 }
6123