xref: /freebsd/sys/dev/isp/isp_freebsd.c (revision d65cd7a57bf0600b722afc770838a5d0c1c3a8e1)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2009-2017 Alexander Motin <mav@FreeBSD.org>
5  * Copyright (c) 1997-2009 by Matthew Jacob
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice immediately at the beginning of the file, without modification,
13  *    this list of conditions, and the following disclaimer.
14  * 2. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 /*
31  * Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
32  */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 
36 #include <dev/isp/isp_freebsd.h>
37 #include <sys/unistd.h>
38 #include <sys/kthread.h>
39 #include <sys/conf.h>
40 #include <sys/module.h>
41 #include <sys/ioccom.h>
42 #include <dev/isp/isp_ioctl.h>
43 #include <sys/devicestat.h>
44 #include <cam/cam_periph.h>
45 #include <cam/cam_xpt_periph.h>
46 
47 MODULE_VERSION(isp, 1);
48 MODULE_DEPEND(isp, cam, 1, 1, 1);
49 int isp_announced = 0;
50 int isp_loop_down_limit = 60;	/* default loop down limit */
51 int isp_quickboot_time = 7;	/* don't wait more than N secs for loop up */
52 int isp_gone_device_time = 30;	/* grace time before reporting device lost */
53 static const char prom3[] = "Chan %d [%u] PortID 0x%06x Departed because of %s";
54 
55 static void isp_freeze_loopdown(ispsoftc_t *, int);
56 static void isp_loop_changed(ispsoftc_t *isp, int chan);
57 static d_ioctl_t ispioctl;
58 static void isp_cam_async(void *, uint32_t, struct cam_path *, void *);
59 static void isp_poll(struct cam_sim *);
60 static callout_func_t isp_watchdog;
61 static callout_func_t isp_gdt;
62 static task_fn_t isp_gdt_task;
63 static void isp_kthread(void *);
64 static void isp_action(struct cam_sim *, union ccb *);
65 static int isp_timer_count;
66 static void isp_timer(void *);
67 
68 static struct cdevsw isp_cdevsw = {
69 	.d_version =	D_VERSION,
70 	.d_ioctl =	ispioctl,
71 	.d_name =	"isp",
72 };
73 
74 static int
75 isp_role_sysctl(SYSCTL_HANDLER_ARGS)
76 {
77 	ispsoftc_t *isp = (ispsoftc_t *)arg1;
78 	int chan = arg2;
79 	int error, old, value;
80 
81 	value = FCPARAM(isp, chan)->role;
82 
83 	error = sysctl_handle_int(oidp, &value, 0, req);
84 	if ((error != 0) || (req->newptr == NULL))
85 		return (error);
86 
87 	if (value < ISP_ROLE_NONE || value > ISP_ROLE_BOTH)
88 		return (EINVAL);
89 
90 	ISP_LOCK(isp);
91 	old = FCPARAM(isp, chan)->role;
92 
93 	/* We don't allow target mode switch from here. */
94 	value = (old & ISP_ROLE_TARGET) | (value & ISP_ROLE_INITIATOR);
95 
96 	/* If nothing has changed -- we are done. */
97 	if (value == old) {
98 		ISP_UNLOCK(isp);
99 		return (0);
100 	}
101 
102 	/* Actually change the role. */
103 	error = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, value);
104 	ISP_UNLOCK(isp);
105 	return (error);
106 }
107 
108 static int
109 isp_attach_chan(ispsoftc_t *isp, struct cam_devq *devq, int chan)
110 {
111 	struct ccb_setasync csa;
112 	struct cam_sim *sim;
113 	struct cam_path *path;
114 #ifdef	ISP_TARGET_MODE
115 	int i;
116 #endif
117 
118 	sim = cam_sim_alloc(isp_action, isp_poll, "isp", isp,
119 	    device_get_unit(isp->isp_dev), &isp->isp_lock,
120 	    isp->isp_maxcmds, isp->isp_maxcmds, devq);
121 	if (sim == NULL)
122 		return (ENOMEM);
123 
124 	ISP_LOCK(isp);
125 	if (xpt_bus_register(sim, isp->isp_dev, chan) != CAM_SUCCESS) {
126 		ISP_UNLOCK(isp);
127 		cam_sim_free(sim, FALSE);
128 		return (EIO);
129 	}
130 	ISP_UNLOCK(isp);
131 	if (xpt_create_path(&path, NULL, cam_sim_path(sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
132 		ISP_LOCK(isp);
133 		xpt_bus_deregister(cam_sim_path(sim));
134 		ISP_UNLOCK(isp);
135 		cam_sim_free(sim, FALSE);
136 		return (ENXIO);
137 	}
138 	xpt_setup_ccb(&csa.ccb_h, path, 5);
139 	csa.ccb_h.func_code = XPT_SASYNC_CB;
140 	csa.event_enable = AC_LOST_DEVICE;
141 	csa.callback = isp_cam_async;
142 	csa.callback_arg = sim;
143 
144 	ISP_LOCK(isp);
145 	xpt_action((union ccb *)&csa);
146 	ISP_UNLOCK(isp);
147 
148 	if (IS_SCSI(isp)) {
149 		struct isp_spi *spi = ISP_SPI_PC(isp, chan);
150 		spi->sim = sim;
151 		spi->path = path;
152 #ifdef	ISP_TARGET_MODE
153 		TAILQ_INIT(&spi->waitq);
154 		STAILQ_INIT(&spi->ntfree);
155 		for (i = 0; i < ATPDPSIZE; i++)
156 			STAILQ_INSERT_TAIL(&spi->ntfree, &spi->ntpool[i], next);
157 		LIST_INIT(&spi->atfree);
158 		for (i = ATPDPSIZE-1; i >= 0; i--)
159 			LIST_INSERT_HEAD(&spi->atfree, &spi->atpool[i], next);
160 		for (i = 0; i < ATPDPHASHSIZE; i++)
161 			LIST_INIT(&spi->atused[i]);
162 #endif
163 	} else {
164 		fcparam *fcp = FCPARAM(isp, chan);
165 		struct isp_fc *fc = ISP_FC_PC(isp, chan);
166 		struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(isp->isp_osinfo.dev);
167 		struct sysctl_oid *tree = device_get_sysctl_tree(isp->isp_osinfo.dev);
168 		char name[16];
169 
170 		ISP_LOCK(isp);
171 		fc->sim = sim;
172 		fc->path = path;
173 		fc->isp = isp;
174 		fc->ready = 1;
175 		fcp->isp_use_gft_id = 1;
176 		fcp->isp_use_gff_id = 1;
177 
178 		callout_init_mtx(&fc->gdt, &isp->isp_lock, 0);
179 		TASK_INIT(&fc->gtask, 1, isp_gdt_task, fc);
180 #ifdef	ISP_TARGET_MODE
181 		TAILQ_INIT(&fc->waitq);
182 		STAILQ_INIT(&fc->ntfree);
183 		for (i = 0; i < ATPDPSIZE; i++)
184 			STAILQ_INSERT_TAIL(&fc->ntfree, &fc->ntpool[i], next);
185 		LIST_INIT(&fc->atfree);
186 		for (i = ATPDPSIZE-1; i >= 0; i--)
187 			LIST_INSERT_HEAD(&fc->atfree, &fc->atpool[i], next);
188 		for (i = 0; i < ATPDPHASHSIZE; i++)
189 			LIST_INIT(&fc->atused[i]);
190 #endif
191 		isp_loop_changed(isp, chan);
192 		ISP_UNLOCK(isp);
193 		if (kproc_create(isp_kthread, fc, &fc->kproc, 0, 0,
194 		    "%s_%d", device_get_nameunit(isp->isp_osinfo.dev), chan)) {
195 			xpt_free_path(fc->path);
196 			ISP_LOCK(isp);
197 			xpt_bus_deregister(cam_sim_path(fc->sim));
198 			ISP_UNLOCK(isp);
199 			cam_sim_free(fc->sim, FALSE);
200 			return (ENOMEM);
201 		}
202 		fc->num_threads += 1;
203 		if (chan > 0) {
204 			snprintf(name, sizeof(name), "chan%d", chan);
205 			tree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree),
206 			    OID_AUTO, name, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
207 			    "Virtual channel");
208 		}
209 		SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
210 		    "wwnn", CTLFLAG_RD, &fcp->isp_wwnn,
211 		    "World Wide Node Name");
212 		SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
213 		    "wwpn", CTLFLAG_RD, &fcp->isp_wwpn,
214 		    "World Wide Port Name");
215 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
216 		    "loop_down_limit", CTLFLAG_RW, &fc->loop_down_limit, 0,
217 		    "Loop Down Limit");
218 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
219 		    "gone_device_time", CTLFLAG_RW, &fc->gone_device_time, 0,
220 		    "Gone Device Time");
221 #if defined(ISP_TARGET_MODE) && defined(DEBUG)
222 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
223 		    "inject_lost_data_frame", CTLFLAG_RW, &fc->inject_lost_data_frame, 0,
224 		    "Cause a Lost Frame on a Read");
225 #endif
226 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
227 		    "role", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
228 		    isp, chan, isp_role_sysctl, "I", "Current role");
229 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
230 		    "speed", CTLFLAG_RD, &fcp->isp_gbspeed, 0,
231 		    "Connection speed in gigabits");
232 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
233 		    "linkstate", CTLFLAG_RD, &fcp->isp_linkstate, 0,
234 		    "Link state");
235 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
236 		    "fwstate", CTLFLAG_RD, &fcp->isp_fwstate, 0,
237 		    "Firmware state");
238 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
239 		    "loopstate", CTLFLAG_RD, &fcp->isp_loopstate, 0,
240 		    "Loop state");
241 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
242 		    "topo", CTLFLAG_RD, &fcp->isp_topo, 0,
243 		    "Connection topology");
244 		SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
245 		    "use_gft_id", CTLFLAG_RWTUN, &fcp->isp_use_gft_id, 0,
246 		    "Use GFT_ID during fabric scan");
247 		SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
248 		    "use_gff_id", CTLFLAG_RWTUN, &fcp->isp_use_gff_id, 0,
249 		    "Use GFF_ID during fabric scan");
250 	}
251 	return (0);
252 }
253 
254 static void
255 isp_detach_chan(ispsoftc_t *isp, int chan)
256 {
257 	struct cam_sim *sim;
258 	struct cam_path *path;
259 	struct ccb_setasync csa;
260 	int *num_threads;
261 
262 	ISP_GET_PC(isp, chan, sim, sim);
263 	ISP_GET_PC(isp, chan, path, path);
264 	ISP_GET_PC_ADDR(isp, chan, num_threads, num_threads);
265 
266 	xpt_setup_ccb(&csa.ccb_h, path, 5);
267 	csa.ccb_h.func_code = XPT_SASYNC_CB;
268 	csa.event_enable = 0;
269 	csa.callback = isp_cam_async;
270 	csa.callback_arg = sim;
271 	xpt_action((union ccb *)&csa);
272 	xpt_free_path(path);
273 	xpt_bus_deregister(cam_sim_path(sim));
274 	cam_sim_free(sim, FALSE);
275 
276 	/* Wait for the channel's spawned threads to exit. */
277 	wakeup(isp->isp_osinfo.pc.ptr);
278 	while (*num_threads != 0)
279 		mtx_sleep(isp, &isp->isp_lock, PRIBIO, "isp_reap", 100);
280 }
281 
282 int
283 isp_attach(ispsoftc_t *isp)
284 {
285 	const char *nu = device_get_nameunit(isp->isp_osinfo.dev);
286 	int du = device_get_unit(isp->isp_dev);
287 	int chan;
288 
289 	/*
290 	 * Create the device queue for our SIM(s).
291 	 */
292 	isp->isp_osinfo.devq = cam_simq_alloc(isp->isp_maxcmds);
293 	if (isp->isp_osinfo.devq == NULL) {
294 		return (EIO);
295 	}
296 
297 	for (chan = 0; chan < isp->isp_nchan; chan++) {
298 		if (isp_attach_chan(isp, isp->isp_osinfo.devq, chan)) {
299 			goto unwind;
300 		}
301 	}
302 
303 	callout_init_mtx(&isp->isp_osinfo.tmo, &isp->isp_lock, 0);
304 	isp_timer_count = hz >> 2;
305 	callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
306 
307 	isp->isp_osinfo.cdev = make_dev(&isp_cdevsw, du, UID_ROOT, GID_OPERATOR, 0600, "%s", nu);
308 	if (isp->isp_osinfo.cdev) {
309 		isp->isp_osinfo.cdev->si_drv1 = isp;
310 	}
311 	return (0);
312 
313 unwind:
314 	while (--chan >= 0) {
315 		struct cam_sim *sim;
316 		struct cam_path *path;
317 
318 		ISP_GET_PC(isp, chan, sim, sim);
319 		ISP_GET_PC(isp, chan, path, path);
320 		xpt_free_path(path);
321 		ISP_LOCK(isp);
322 		xpt_bus_deregister(cam_sim_path(sim));
323 		ISP_UNLOCK(isp);
324 		cam_sim_free(sim, FALSE);
325 	}
326 	cam_simq_free(isp->isp_osinfo.devq);
327 	isp->isp_osinfo.devq = NULL;
328 	return (-1);
329 }
330 
331 int
332 isp_detach(ispsoftc_t *isp)
333 {
334 	int chan;
335 
336 	if (isp->isp_osinfo.cdev) {
337 		destroy_dev(isp->isp_osinfo.cdev);
338 		isp->isp_osinfo.cdev = NULL;
339 	}
340 	ISP_LOCK(isp);
341 	/* Tell spawned threads that we're exiting. */
342 	isp->isp_osinfo.is_exiting = 1;
343 	for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1)
344 		isp_detach_chan(isp, chan);
345 	ISP_UNLOCK(isp);
346 	callout_drain(&isp->isp_osinfo.tmo);
347 	cam_simq_free(isp->isp_osinfo.devq);
348 	return (0);
349 }
350 
351 static void
352 isp_freeze_loopdown(ispsoftc_t *isp, int chan)
353 {
354 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
355 
356 	if (fc->sim == NULL)
357 		return;
358 	if (fc->simqfrozen == 0) {
359 		isp_prt(isp, ISP_LOGDEBUG0,
360 		    "Chan %d Freeze simq (loopdown)", chan);
361 		fc->simqfrozen = SIMQFRZ_LOOPDOWN;
362 		xpt_hold_boot();
363 		xpt_freeze_simq(fc->sim, 1);
364 	} else {
365 		isp_prt(isp, ISP_LOGDEBUG0,
366 		    "Chan %d Mark simq frozen (loopdown)", chan);
367 		fc->simqfrozen |= SIMQFRZ_LOOPDOWN;
368 	}
369 }
370 
371 static void
372 isp_unfreeze_loopdown(ispsoftc_t *isp, int chan)
373 {
374 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
375 
376 	if (fc->sim == NULL)
377 		return;
378 	int wasfrozen = fc->simqfrozen & SIMQFRZ_LOOPDOWN;
379 	fc->simqfrozen &= ~SIMQFRZ_LOOPDOWN;
380 	if (wasfrozen && fc->simqfrozen == 0) {
381 		isp_prt(isp, ISP_LOGDEBUG0,
382 		    "Chan %d Release simq", chan);
383 		xpt_release_simq(fc->sim, 1);
384 		xpt_release_boot();
385 	}
386 }
387 
388 static int
389 ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
390 {
391 	ispsoftc_t *isp;
392 	int nr, chan, retval = ENOTTY;
393 
394 	isp = dev->si_drv1;
395 
396 	switch (c) {
397 	case ISP_SDBLEV:
398 	{
399 		int olddblev = isp->isp_dblev;
400 		isp->isp_dblev = *(int *)addr;
401 		*(int *)addr = olddblev;
402 		retval = 0;
403 		break;
404 	}
405 	case ISP_GETROLE:
406 		chan = *(int *)addr;
407 		if (chan < 0 || chan >= isp->isp_nchan) {
408 			retval = -ENXIO;
409 			break;
410 		}
411 		if (IS_FC(isp)) {
412 			*(int *)addr = FCPARAM(isp, chan)->role;
413 		} else {
414 			*(int *)addr = ISP_ROLE_INITIATOR;
415 		}
416 		retval = 0;
417 		break;
418 	case ISP_SETROLE:
419 		if (IS_SCSI(isp))
420 			break;
421 		nr = *(int *)addr;
422 		chan = nr >> 8;
423 		if (chan < 0 || chan >= isp->isp_nchan) {
424 			retval = -ENXIO;
425 			break;
426 		}
427 		nr &= 0xff;
428 		if (nr & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) {
429 			retval = EINVAL;
430 			break;
431 		}
432 		ISP_LOCK(isp);
433 		*(int *)addr = FCPARAM(isp, chan)->role;
434 		retval = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, nr);
435 		ISP_UNLOCK(isp);
436 		retval = 0;
437 		break;
438 
439 	case ISP_RESETHBA:
440 		ISP_LOCK(isp);
441 		isp_reinit(isp, 0);
442 		ISP_UNLOCK(isp);
443 		retval = 0;
444 		break;
445 
446 	case ISP_RESCAN:
447 		if (IS_FC(isp)) {
448 			chan = *(intptr_t *)addr;
449 			if (chan < 0 || chan >= isp->isp_nchan) {
450 				retval = -ENXIO;
451 				break;
452 			}
453 			ISP_LOCK(isp);
454 			if (isp_fc_runstate(isp, chan, 5 * 1000000) != LOOP_READY) {
455 				retval = EIO;
456 			} else {
457 				retval = 0;
458 			}
459 			ISP_UNLOCK(isp);
460 		}
461 		break;
462 
463 	case ISP_FC_LIP:
464 		if (IS_FC(isp)) {
465 			chan = *(intptr_t *)addr;
466 			if (chan < 0 || chan >= isp->isp_nchan) {
467 				retval = -ENXIO;
468 				break;
469 			}
470 			ISP_LOCK(isp);
471 			if (isp_control(isp, ISPCTL_SEND_LIP, chan)) {
472 				retval = EIO;
473 			} else {
474 				retval = 0;
475 			}
476 			ISP_UNLOCK(isp);
477 		}
478 		break;
479 	case ISP_FC_GETDINFO:
480 	{
481 		struct isp_fc_device *ifc = (struct isp_fc_device *) addr;
482 		fcportdb_t *lp;
483 
484 		if (IS_SCSI(isp)) {
485 			break;
486 		}
487 		if (ifc->loopid >= MAX_FC_TARG) {
488 			retval = EINVAL;
489 			break;
490 		}
491 		lp = &FCPARAM(isp, ifc->chan)->portdb[ifc->loopid];
492 		if (lp->state != FC_PORTDB_STATE_NIL) {
493 			ifc->role = (lp->prli_word3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
494 			ifc->loopid = lp->handle;
495 			ifc->portid = lp->portid;
496 			ifc->node_wwn = lp->node_wwn;
497 			ifc->port_wwn = lp->port_wwn;
498 			retval = 0;
499 		} else {
500 			retval = ENODEV;
501 		}
502 		break;
503 	}
504 	case ISP_FC_GETHINFO:
505 	{
506 		struct isp_hba_device *hba = (struct isp_hba_device *) addr;
507 		int chan = hba->fc_channel;
508 
509 		if (chan < 0 || chan >= isp->isp_nchan) {
510 			retval = ENXIO;
511 			break;
512 		}
513 		hba->fc_fw_major = ISP_FW_MAJORX(isp->isp_fwrev);
514 		hba->fc_fw_minor = ISP_FW_MINORX(isp->isp_fwrev);
515 		hba->fc_fw_micro = ISP_FW_MICROX(isp->isp_fwrev);
516 		hba->fc_nchannels = isp->isp_nchan;
517 		if (IS_FC(isp)) {
518 			hba->fc_nports = MAX_FC_TARG;
519 			hba->fc_speed = FCPARAM(isp, hba->fc_channel)->isp_gbspeed;
520 			hba->fc_topology = FCPARAM(isp, chan)->isp_topo + 1;
521 			hba->fc_loopid = FCPARAM(isp, chan)->isp_loopid;
522 			hba->nvram_node_wwn = FCPARAM(isp, chan)->isp_wwnn_nvram;
523 			hba->nvram_port_wwn = FCPARAM(isp, chan)->isp_wwpn_nvram;
524 			hba->active_node_wwn = FCPARAM(isp, chan)->isp_wwnn;
525 			hba->active_port_wwn = FCPARAM(isp, chan)->isp_wwpn;
526 		} else {
527 			hba->fc_nports = MAX_TARGETS;
528 			hba->fc_speed = 0;
529 			hba->fc_topology = 0;
530 			hba->nvram_node_wwn = 0ull;
531 			hba->nvram_port_wwn = 0ull;
532 			hba->active_node_wwn = 0ull;
533 			hba->active_port_wwn = 0ull;
534 		}
535 		retval = 0;
536 		break;
537 	}
538 	case ISP_TSK_MGMT:
539 	{
540 		int needmarker;
541 		struct isp_fc_tsk_mgmt *fct = (struct isp_fc_tsk_mgmt *) addr;
542 		uint16_t nphdl;
543 		mbreg_t mbs;
544 
545 		if (IS_SCSI(isp)) {
546 			break;
547 		}
548 
549 		chan = fct->chan;
550 		if (chan < 0 || chan >= isp->isp_nchan) {
551 			retval = -ENXIO;
552 			break;
553 		}
554 
555 		needmarker = retval = 0;
556 		nphdl = fct->loopid;
557 		ISP_LOCK(isp);
558 		if (IS_24XX(isp)) {
559 			void *reqp;
560 			uint8_t resp[QENTRY_LEN];
561 			isp24xx_tmf_t tmf;
562 			isp24xx_statusreq_t sp;
563 			fcparam *fcp = FCPARAM(isp, chan);
564 			fcportdb_t *lp;
565 			int i;
566 
567 			for (i = 0; i < MAX_FC_TARG; i++) {
568 				lp = &fcp->portdb[i];
569 				if (lp->handle == nphdl) {
570 					break;
571 				}
572 			}
573 			if (i == MAX_FC_TARG) {
574 				retval = ENXIO;
575 				ISP_UNLOCK(isp);
576 				break;
577 			}
578 			ISP_MEMZERO(&tmf, sizeof(tmf));
579 			tmf.tmf_header.rqs_entry_type = RQSTYPE_TSK_MGMT;
580 			tmf.tmf_header.rqs_entry_count = 1;
581 			tmf.tmf_nphdl = lp->handle;
582 			tmf.tmf_delay = 2;
583 			tmf.tmf_timeout = 4;
584 			tmf.tmf_tidlo = lp->portid;
585 			tmf.tmf_tidhi = lp->portid >> 16;
586 			tmf.tmf_vpidx = ISP_GET_VPIDX(isp, chan);
587 			tmf.tmf_lun[1] = fct->lun & 0xff;
588 			if (fct->lun >= 256) {
589 				tmf.tmf_lun[0] = 0x40 | (fct->lun >> 8);
590 			}
591 			switch (fct->action) {
592 			case IPT_CLEAR_ACA:
593 				tmf.tmf_flags = ISP24XX_TMF_CLEAR_ACA;
594 				break;
595 			case IPT_TARGET_RESET:
596 				tmf.tmf_flags = ISP24XX_TMF_TARGET_RESET;
597 				needmarker = 1;
598 				break;
599 			case IPT_LUN_RESET:
600 				tmf.tmf_flags = ISP24XX_TMF_LUN_RESET;
601 				needmarker = 1;
602 				break;
603 			case IPT_CLEAR_TASK_SET:
604 				tmf.tmf_flags = ISP24XX_TMF_CLEAR_TASK_SET;
605 				needmarker = 1;
606 				break;
607 			case IPT_ABORT_TASK_SET:
608 				tmf.tmf_flags = ISP24XX_TMF_ABORT_TASK_SET;
609 				needmarker = 1;
610 				break;
611 			default:
612 				retval = EINVAL;
613 				break;
614 			}
615 			if (retval) {
616 				ISP_UNLOCK(isp);
617 				break;
618 			}
619 
620 			/* Prepare space for response in memory */
621 			memset(resp, 0xff, sizeof(resp));
622 			tmf.tmf_handle = isp_allocate_handle(isp, resp,
623 			    ISP_HANDLE_CTRL);
624 			if (tmf.tmf_handle == 0) {
625 				isp_prt(isp, ISP_LOGERR,
626 				    "%s: TMF of Chan %d out of handles",
627 				    __func__, chan);
628 				ISP_UNLOCK(isp);
629 				retval = ENOMEM;
630 				break;
631 			}
632 
633 			/* Send request and wait for response. */
634 			reqp = isp_getrqentry(isp);
635 			if (reqp == NULL) {
636 				isp_prt(isp, ISP_LOGERR,
637 				    "%s: TMF of Chan %d out of rqent",
638 				    __func__, chan);
639 				isp_destroy_handle(isp, tmf.tmf_handle);
640 				ISP_UNLOCK(isp);
641 				retval = EIO;
642 				break;
643 			}
644 			isp_put_24xx_tmf(isp, &tmf, (isp24xx_tmf_t *)reqp);
645 			if (isp->isp_dblev & ISP_LOGDEBUG1)
646 				isp_print_bytes(isp, "IOCB TMF", QENTRY_LEN, reqp);
647 			ISP_SYNC_REQUEST(isp);
648 			if (msleep(resp, &isp->isp_lock, 0, "TMF", 5*hz) == EWOULDBLOCK) {
649 				isp_prt(isp, ISP_LOGERR,
650 				    "%s: TMF of Chan %d timed out",
651 				    __func__, chan);
652 				isp_destroy_handle(isp, tmf.tmf_handle);
653 				ISP_UNLOCK(isp);
654 				retval = EIO;
655 				break;
656 			}
657 			if (isp->isp_dblev & ISP_LOGDEBUG1)
658 				isp_print_bytes(isp, "IOCB TMF response", QENTRY_LEN, resp);
659 			isp_get_24xx_response(isp, (isp24xx_statusreq_t *)resp, &sp);
660 
661 			if (sp.req_completion_status != 0)
662 				retval = EIO;
663 			else if (needmarker)
664 				fcp->sendmarker = 1;
665 		} else {
666 			MBSINIT(&mbs, 0, MBLOGALL, 0);
667 			if (ISP_CAP_2KLOGIN(isp) == 0) {
668 				nphdl <<= 8;
669 			}
670 			switch (fct->action) {
671 			case IPT_CLEAR_ACA:
672 				mbs.param[0] = MBOX_CLEAR_ACA;
673 				mbs.param[1] = nphdl;
674 				mbs.param[2] = fct->lun;
675 				break;
676 			case IPT_TARGET_RESET:
677 				mbs.param[0] = MBOX_TARGET_RESET;
678 				mbs.param[1] = nphdl;
679 				needmarker = 1;
680 				break;
681 			case IPT_LUN_RESET:
682 				mbs.param[0] = MBOX_LUN_RESET;
683 				mbs.param[1] = nphdl;
684 				mbs.param[2] = fct->lun;
685 				needmarker = 1;
686 				break;
687 			case IPT_CLEAR_TASK_SET:
688 				mbs.param[0] = MBOX_CLEAR_TASK_SET;
689 				mbs.param[1] = nphdl;
690 				mbs.param[2] = fct->lun;
691 				needmarker = 1;
692 				break;
693 			case IPT_ABORT_TASK_SET:
694 				mbs.param[0] = MBOX_ABORT_TASK_SET;
695 				mbs.param[1] = nphdl;
696 				mbs.param[2] = fct->lun;
697 				needmarker = 1;
698 				break;
699 			default:
700 				retval = EINVAL;
701 				break;
702 			}
703 			if (retval == 0) {
704 				if (needmarker) {
705 					FCPARAM(isp, chan)->sendmarker = 1;
706 				}
707 				retval = isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs);
708 				if (retval) {
709 					retval = EIO;
710 				}
711 			}
712 		}
713 		ISP_UNLOCK(isp);
714 		break;
715 	}
716 	default:
717 		break;
718 	}
719 	return (retval);
720 }
721 
722 /*
723  * Local Inlines
724  */
725 
726 static ISP_INLINE int isp_get_pcmd(ispsoftc_t *, union ccb *);
727 static ISP_INLINE void isp_free_pcmd(ispsoftc_t *, union ccb *);
728 
729 static ISP_INLINE int
730 isp_get_pcmd(ispsoftc_t *isp, union ccb *ccb)
731 {
732 	ISP_PCMD(ccb) = isp->isp_osinfo.pcmd_free;
733 	if (ISP_PCMD(ccb) == NULL) {
734 		return (-1);
735 	}
736 	isp->isp_osinfo.pcmd_free = ((struct isp_pcmd *)ISP_PCMD(ccb))->next;
737 	return (0);
738 }
739 
740 static ISP_INLINE void
741 isp_free_pcmd(ispsoftc_t *isp, union ccb *ccb)
742 {
743 	if (ISP_PCMD(ccb)) {
744 #ifdef	ISP_TARGET_MODE
745 		PISP_PCMD(ccb)->datalen = 0;
746 #endif
747 		PISP_PCMD(ccb)->next = isp->isp_osinfo.pcmd_free;
748 		isp->isp_osinfo.pcmd_free = ISP_PCMD(ccb);
749 		ISP_PCMD(ccb) = NULL;
750 	}
751 }
752 
753 /*
754  * Put the target mode functions here, because some are inlines
755  */
756 #ifdef	ISP_TARGET_MODE
757 static ISP_INLINE tstate_t *get_lun_statep(ispsoftc_t *, int, lun_id_t);
758 static atio_private_data_t *isp_get_atpd(ispsoftc_t *, int, uint32_t);
759 static atio_private_data_t *isp_find_atpd(ispsoftc_t *, int, uint32_t);
760 static void isp_put_atpd(ispsoftc_t *, int, atio_private_data_t *);
761 static inot_private_data_t *isp_get_ntpd(ispsoftc_t *, int);
762 static inot_private_data_t *isp_find_ntpd(ispsoftc_t *, int, uint32_t, uint32_t);
763 static void isp_put_ntpd(ispsoftc_t *, int, inot_private_data_t *);
764 static cam_status create_lun_state(ispsoftc_t *, int, struct cam_path *, tstate_t **);
765 static void destroy_lun_state(ispsoftc_t *, int, tstate_t *);
766 static void isp_enable_lun(ispsoftc_t *, union ccb *);
767 static void isp_disable_lun(ispsoftc_t *, union ccb *);
768 static callout_func_t isp_refire_putback_atio;
769 static callout_func_t isp_refire_notify_ack;
770 static void isp_complete_ctio(union ccb *);
771 static void isp_target_putback_atio(union ccb *);
772 enum Start_Ctio_How { FROM_CAM, FROM_TIMER, FROM_SRR, FROM_CTIO_DONE };
773 static void isp_target_start_ctio(ispsoftc_t *, union ccb *, enum Start_Ctio_How);
774 static void isp_handle_platform_atio2(ispsoftc_t *, at2_entry_t *);
775 static void isp_handle_platform_atio7(ispsoftc_t *, at7_entry_t *);
776 static void isp_handle_platform_ctio(ispsoftc_t *, void *);
777 static int isp_handle_platform_target_notify_ack(ispsoftc_t *, isp_notify_t *, uint32_t rsp);
778 static void isp_handle_platform_target_tmf(ispsoftc_t *, isp_notify_t *);
779 static void isp_target_mark_aborted_early(ispsoftc_t *, int chan, tstate_t *, uint32_t);
780 
781 static ISP_INLINE tstate_t *
782 get_lun_statep(ispsoftc_t *isp, int bus, lun_id_t lun)
783 {
784 	tstate_t *tptr = NULL;
785 	struct tslist *lhp;
786 
787 	if (bus < isp->isp_nchan) {
788 		ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
789 		SLIST_FOREACH(tptr, lhp, next) {
790 			if (tptr->ts_lun == lun)
791 				return (tptr);
792 		}
793 	}
794 	return (NULL);
795 }
796 
797 static int
798 isp_atio_restart(ispsoftc_t *isp, int bus, tstate_t *tptr)
799 {
800 	inot_private_data_t *ntp;
801 	struct ntpdlist rq;
802 
803 	if (STAILQ_EMPTY(&tptr->restart_queue))
804 		return (0);
805 	STAILQ_INIT(&rq);
806 	STAILQ_CONCAT(&rq, &tptr->restart_queue);
807 	while ((ntp = STAILQ_FIRST(&rq)) != NULL) {
808 		STAILQ_REMOVE_HEAD(&rq, next);
809 		if (IS_24XX(isp)) {
810 			isp_prt(isp, ISP_LOGTDEBUG0,
811 			    "%s: restarting resrc deprived %x", __func__,
812 			    ((at7_entry_t *)ntp->data)->at_rxid);
813 			isp_handle_platform_atio7(isp, (at7_entry_t *) ntp->data);
814 		} else {
815 			isp_prt(isp, ISP_LOGTDEBUG0,
816 			    "%s: restarting resrc deprived %x", __func__,
817 			    ((at2_entry_t *)ntp->data)->at_rxid);
818 			isp_handle_platform_atio2(isp, (at2_entry_t *) ntp->data);
819 		}
820 		isp_put_ntpd(isp, bus, ntp);
821 		if (!STAILQ_EMPTY(&tptr->restart_queue))
822 			break;
823 	}
824 	if (!STAILQ_EMPTY(&rq)) {
825 		STAILQ_CONCAT(&rq, &tptr->restart_queue);
826 		STAILQ_CONCAT(&tptr->restart_queue, &rq);
827 	}
828 	return (!STAILQ_EMPTY(&tptr->restart_queue));
829 }
830 
831 static void
832 isp_tmcmd_restart(ispsoftc_t *isp)
833 {
834 	tstate_t *tptr;
835 	union ccb *ccb;
836 	struct tslist *lhp;
837 	struct isp_ccbq *waitq;
838 	int bus, i;
839 
840 	for (bus = 0; bus < isp->isp_nchan; bus++) {
841 		for (i = 0; i < LUN_HASH_SIZE; i++) {
842 			ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
843 			SLIST_FOREACH(tptr, lhp, next)
844 				isp_atio_restart(isp, bus, tptr);
845 		}
846 
847 		/*
848 		 * We only need to do this once per channel.
849 		 */
850 		ISP_GET_PC_ADDR(isp, bus, waitq, waitq);
851 		ccb = (union ccb *)TAILQ_FIRST(waitq);
852 		if (ccb != NULL) {
853 			TAILQ_REMOVE(waitq, &ccb->ccb_h, sim_links.tqe);
854 			isp_target_start_ctio(isp, ccb, FROM_TIMER);
855 		}
856 	}
857 }
858 
859 static atio_private_data_t *
860 isp_get_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
861 {
862 	struct atpdlist *atfree;
863 	struct atpdlist *atused;
864 	atio_private_data_t *atp;
865 
866 	ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
867 	atp = LIST_FIRST(atfree);
868 	if (atp) {
869 		LIST_REMOVE(atp, next);
870 		atp->tag = tag;
871 		ISP_GET_PC(isp, chan, atused, atused);
872 		LIST_INSERT_HEAD(&atused[ATPDPHASH(tag)], atp, next);
873 	}
874 	return (atp);
875 }
876 
877 static atio_private_data_t *
878 isp_find_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
879 {
880 	struct atpdlist *atused;
881 	atio_private_data_t *atp;
882 
883 	ISP_GET_PC(isp, chan, atused, atused);
884 	LIST_FOREACH(atp, &atused[ATPDPHASH(tag)], next) {
885 		if (atp->tag == tag)
886 			return (atp);
887 	}
888 	return (NULL);
889 }
890 
891 static void
892 isp_put_atpd(ispsoftc_t *isp, int chan, atio_private_data_t *atp)
893 {
894 	struct atpdlist *atfree;
895 
896 	if (atp->ests) {
897 		isp_put_ecmd(isp, atp->ests);
898 	}
899 	LIST_REMOVE(atp, next);
900 	memset(atp, 0, sizeof (*atp));
901 	ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
902 	LIST_INSERT_HEAD(atfree, atp, next);
903 }
904 
905 static void
906 isp_dump_atpd(ispsoftc_t *isp, int chan)
907 {
908 	atio_private_data_t *atp, *atpool;
909 	const char *states[8] = { "Free", "ATIO", "CAM", "CTIO", "LAST_CTIO", "PDON", "?6", "7" };
910 
911 	ISP_GET_PC(isp, chan, atpool, atpool);
912 	for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
913 		if (atp->state == ATPD_STATE_FREE)
914 			continue;
915 		isp_prt(isp, ISP_LOGALL, "Chan %d ATP [0x%x] origdlen %u bytes_xfrd %u lun %jx nphdl 0x%04x s_id 0x%06x d_id 0x%06x oxid 0x%04x state %s",
916 		    chan, atp->tag, atp->orig_datalen, atp->bytes_xfered, (uintmax_t)atp->lun, atp->nphdl, atp->sid, atp->did, atp->oxid, states[atp->state & 0x7]);
917 	}
918 }
919 
920 static inot_private_data_t *
921 isp_get_ntpd(ispsoftc_t *isp, int chan)
922 {
923 	struct ntpdlist *ntfree;
924 	inot_private_data_t *ntp;
925 
926 	ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
927 	ntp = STAILQ_FIRST(ntfree);
928 	if (ntp)
929 		STAILQ_REMOVE_HEAD(ntfree, next);
930 	return (ntp);
931 }
932 
933 static inot_private_data_t *
934 isp_find_ntpd(ispsoftc_t *isp, int chan, uint32_t tag_id, uint32_t seq_id)
935 {
936 	inot_private_data_t *ntp, *ntp2;
937 
938 	ISP_GET_PC(isp, chan, ntpool, ntp);
939 	ISP_GET_PC_ADDR(isp, chan, ntpool[ATPDPSIZE], ntp2);
940 	for (; ntp < ntp2; ntp++) {
941 		if (ntp->tag_id == tag_id && ntp->seq_id == seq_id)
942 			return (ntp);
943 	}
944 	return (NULL);
945 }
946 
947 static void
948 isp_put_ntpd(ispsoftc_t *isp, int chan, inot_private_data_t *ntp)
949 {
950 	struct ntpdlist *ntfree;
951 
952 	ntp->tag_id = ntp->seq_id = 0;
953 	ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
954 	STAILQ_INSERT_HEAD(ntfree, ntp, next);
955 }
956 
957 static cam_status
958 create_lun_state(ispsoftc_t *isp, int bus, struct cam_path *path, tstate_t **rslt)
959 {
960 	lun_id_t lun;
961 	struct tslist *lhp;
962 	tstate_t *tptr;
963 
964 	lun = xpt_path_lun_id(path);
965 	if (lun != CAM_LUN_WILDCARD) {
966 		if (ISP_MAX_LUNS(isp) > 0 && lun >= ISP_MAX_LUNS(isp)) {
967 			return (CAM_LUN_INVALID);
968 		}
969 	}
970 	tptr = malloc(sizeof (tstate_t), M_DEVBUF, M_NOWAIT|M_ZERO);
971 	if (tptr == NULL) {
972 		return (CAM_RESRC_UNAVAIL);
973 	}
974 	tptr->ts_lun = lun;
975 	SLIST_INIT(&tptr->atios);
976 	SLIST_INIT(&tptr->inots);
977 	STAILQ_INIT(&tptr->restart_queue);
978 	ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
979 	SLIST_INSERT_HEAD(lhp, tptr, next);
980 	*rslt = tptr;
981 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, path, "created tstate\n");
982 	return (CAM_REQ_CMP);
983 }
984 
985 static void
986 destroy_lun_state(ispsoftc_t *isp, int bus, tstate_t *tptr)
987 {
988 	union ccb *ccb;
989 	struct tslist *lhp;
990 	inot_private_data_t *ntp;
991 
992 	while ((ccb = (union ccb *)SLIST_FIRST(&tptr->atios)) != NULL) {
993 		SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
994 		ccb->ccb_h.status = CAM_REQ_ABORTED;
995 		xpt_done(ccb);
996 	};
997 	while ((ccb = (union ccb *)SLIST_FIRST(&tptr->inots)) != NULL) {
998 		SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
999 		ccb->ccb_h.status = CAM_REQ_ABORTED;
1000 		xpt_done(ccb);
1001 	}
1002 	while ((ntp = STAILQ_FIRST(&tptr->restart_queue)) != NULL) {
1003 		isp_endcmd(isp, ntp->data, NIL_HANDLE, bus, SCSI_STATUS_BUSY, 0);
1004 		STAILQ_REMOVE_HEAD(&tptr->restart_queue, next);
1005 		isp_put_ntpd(isp, bus, ntp);
1006 	}
1007 	ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(tptr->ts_lun)], lhp);
1008 	SLIST_REMOVE(lhp, tptr, tstate, next);
1009 	free(tptr, M_DEVBUF);
1010 }
1011 
1012 static void
1013 isp_enable_lun(ispsoftc_t *isp, union ccb *ccb)
1014 {
1015 	tstate_t *tptr;
1016 	int bus;
1017 	target_id_t target;
1018 	lun_id_t lun;
1019 
1020 	if (!IS_FC(isp) || !ISP_CAP_TMODE(isp) || !ISP_CAP_SCCFW(isp)) {
1021 		xpt_print(ccb->ccb_h.path, "Target mode is not supported\n");
1022 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1023 		xpt_done(ccb);
1024 		return;
1025 	}
1026 
1027 	/*
1028 	 * We only support either target and lun both wildcard
1029 	 * or target and lun both non-wildcard.
1030 	 */
1031 	bus = XS_CHANNEL(ccb);
1032 	target = ccb->ccb_h.target_id;
1033 	lun = ccb->ccb_h.target_lun;
1034 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
1035 	    "enabling lun %jx\n", (uintmax_t)lun);
1036 	if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
1037 		ccb->ccb_h.status = CAM_LUN_INVALID;
1038 		xpt_done(ccb);
1039 		return;
1040 	}
1041 
1042 	/* Create the state pointer. It should not already exist. */
1043 	tptr = get_lun_statep(isp, bus, lun);
1044 	if (tptr) {
1045 		ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
1046 		xpt_done(ccb);
1047 		return;
1048 	}
1049 	ccb->ccb_h.status = create_lun_state(isp, bus, ccb->ccb_h.path, &tptr);
1050 	if (ccb->ccb_h.status != CAM_REQ_CMP) {
1051 		xpt_done(ccb);
1052 		return;
1053 	}
1054 
1055 	ccb->ccb_h.status = CAM_REQ_CMP;
1056 	xpt_done(ccb);
1057 }
1058 
1059 static void
1060 isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
1061 {
1062 	tstate_t *tptr = NULL;
1063 	int bus;
1064 	target_id_t target;
1065 	lun_id_t lun;
1066 
1067 	bus = XS_CHANNEL(ccb);
1068 	target = ccb->ccb_h.target_id;
1069 	lun = ccb->ccb_h.target_lun;
1070 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
1071 	    "disabling lun %jx\n", (uintmax_t)lun);
1072 	if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
1073 		ccb->ccb_h.status = CAM_LUN_INVALID;
1074 		xpt_done(ccb);
1075 		return;
1076 	}
1077 
1078 	/* Find the state pointer. */
1079 	if ((tptr = get_lun_statep(isp, bus, lun)) == NULL) {
1080 		ccb->ccb_h.status = CAM_PATH_INVALID;
1081 		xpt_done(ccb);
1082 		return;
1083 	}
1084 
1085 	destroy_lun_state(isp, bus, tptr);
1086 	ccb->ccb_h.status = CAM_REQ_CMP;
1087 	xpt_done(ccb);
1088 }
1089 
1090 static void
1091 isp_target_start_ctio(ispsoftc_t *isp, union ccb *ccb, enum Start_Ctio_How how)
1092 {
1093 	int fctape, sendstatus, resid;
1094 	fcparam *fcp;
1095 	atio_private_data_t *atp;
1096 	struct ccb_scsiio *cso;
1097 	struct isp_ccbq *waitq;
1098 	uint32_t dmaresult, handle, xfrlen, sense_length, tmp;
1099 	uint8_t local[QENTRY_LEN];
1100 
1101 	isp_prt(isp, ISP_LOGTDEBUG0, "%s: ENTRY[0x%x] how %u xfrlen %u sendstatus %d sense_len %u", __func__, ccb->csio.tag_id, how, ccb->csio.dxfer_len,
1102 	    (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0, ((ccb->ccb_h.flags & CAM_SEND_SENSE)? ccb->csio.sense_len : 0));
1103 
1104 	ISP_GET_PC_ADDR(isp, XS_CHANNEL(ccb), waitq, waitq);
1105 	switch (how) {
1106 	case FROM_CAM:
1107 		/*
1108 		 * Insert at the tail of the list, if any, waiting CTIO CCBs
1109 		 */
1110 		TAILQ_INSERT_TAIL(waitq, &ccb->ccb_h, sim_links.tqe);
1111 		break;
1112 	case FROM_TIMER:
1113 	case FROM_SRR:
1114 	case FROM_CTIO_DONE:
1115 		TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1116 		break;
1117 	}
1118 
1119 	while ((ccb = (union ccb *) TAILQ_FIRST(waitq)) != NULL) {
1120 		TAILQ_REMOVE(waitq, &ccb->ccb_h, sim_links.tqe);
1121 
1122 		cso = &ccb->csio;
1123 		xfrlen = cso->dxfer_len;
1124 		if (xfrlen == 0) {
1125 			if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
1126 				ISP_PATH_PRT(isp, ISP_LOGERR, ccb->ccb_h.path, "a data transfer length of zero but no status to send is wrong\n");
1127 				ccb->ccb_h.status = CAM_REQ_INVALID;
1128 				xpt_done(ccb);
1129 				continue;
1130 			}
1131 		}
1132 
1133 		atp = isp_find_atpd(isp, XS_CHANNEL(ccb), cso->tag_id);
1134 		if (atp == NULL) {
1135 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] cannot find private data adjunct in %s", __func__, cso->tag_id, __func__);
1136 			isp_dump_atpd(isp, XS_CHANNEL(ccb));
1137 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1138 			xpt_done(ccb);
1139 			continue;
1140 		}
1141 
1142 		/*
1143 		 * Is this command a dead duck?
1144 		 */
1145 		if (atp->dead) {
1146 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] not sending a CTIO for a dead command", __func__, cso->tag_id);
1147 			ccb->ccb_h.status = CAM_REQ_ABORTED;
1148 			xpt_done(ccb);
1149 			continue;
1150 		}
1151 
1152 		/*
1153 		 * Check to make sure we're still in target mode.
1154 		 */
1155 		fcp = FCPARAM(isp, XS_CHANNEL(ccb));
1156 		if ((fcp->role & ISP_ROLE_TARGET) == 0) {
1157 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] stopping sending a CTIO because we're no longer in target mode", __func__, cso->tag_id);
1158 			ccb->ccb_h.status = CAM_PROVIDE_FAIL;
1159 			xpt_done(ccb);
1160 			continue;
1161 		}
1162 
1163 		/*
1164 		 * We're only handling ATPD_CCB_OUTSTANDING outstanding CCB at a time (one of which
1165 		 * could be split into two CTIOs to split data and status).
1166 		 */
1167 		if (atp->ctcnt >= ATPD_CCB_OUTSTANDING) {
1168 			isp_prt(isp, ISP_LOGTINFO, "[0x%x] handling only %d CCBs at a time (flags for this ccb: 0x%x)", cso->tag_id, ATPD_CCB_OUTSTANDING, ccb->ccb_h.flags);
1169 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1170 			break;
1171 		}
1172 
1173 		/*
1174 		 * Does the initiator expect FC-Tape style responses?
1175 		 */
1176 		if ((atp->word3 & PRLI_WD3_RETRY) && fcp->fctape_enabled) {
1177 			fctape = 1;
1178 		} else {
1179 			fctape = 0;
1180 		}
1181 
1182 		/*
1183 		 * If we already did the data xfer portion of a CTIO that sends data
1184 		 * and status, don't do it again and do the status portion now.
1185 		 */
1186 		if (atp->sendst) {
1187 			isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] now sending synthesized status orig_dl=%u xfered=%u bit=%u",
1188 			    cso->tag_id, atp->orig_datalen, atp->bytes_xfered, atp->bytes_in_transit);
1189 			xfrlen = 0;	/* we already did the data transfer */
1190 			atp->sendst = 0;
1191 		}
1192 		if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
1193 			sendstatus = 1;
1194 		} else {
1195 			sendstatus = 0;
1196 		}
1197 
1198 		if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
1199 			KASSERT((sendstatus != 0), ("how can you have CAM_SEND_SENSE w/o CAM_SEND_STATUS?"));
1200 			/*
1201 			 * Sense length is not the entire sense data structure size. Periph
1202 			 * drivers don't seem to be setting sense_len to reflect the actual
1203 			 * size. We'll peek inside to get the right amount.
1204 			 */
1205 			sense_length = cso->sense_len;
1206 
1207 			/*
1208 			 * This 'cannot' happen
1209 			 */
1210 			if (sense_length > (XCMD_SIZE - MIN_FCP_RESPONSE_SIZE)) {
1211 				sense_length = XCMD_SIZE - MIN_FCP_RESPONSE_SIZE;
1212 			}
1213 		} else {
1214 			sense_length = 0;
1215 		}
1216 
1217 		memset(local, 0, QENTRY_LEN);
1218 
1219 		/*
1220 		 * Check for overflow
1221 		 */
1222 		tmp = atp->bytes_xfered + atp->bytes_in_transit;
1223 		if (xfrlen > 0 && tmp > atp->orig_datalen) {
1224 			isp_prt(isp, ISP_LOGERR,
1225 			    "%s: [0x%x] data overflow by %u bytes", __func__,
1226 			    cso->tag_id, tmp + xfrlen - atp->orig_datalen);
1227 			ccb->ccb_h.status = CAM_DATA_RUN_ERR;
1228 			xpt_done(ccb);
1229 			continue;
1230 		}
1231 		if (xfrlen > atp->orig_datalen - tmp) {
1232 			xfrlen = atp->orig_datalen - tmp;
1233 			if (xfrlen == 0 && !sendstatus) {
1234 				cso->resid = cso->dxfer_len;
1235 				ccb->ccb_h.status = CAM_REQ_CMP;
1236 				xpt_done(ccb);
1237 				continue;
1238 			}
1239 		}
1240 
1241 		if (IS_24XX(isp)) {
1242 			ct7_entry_t *cto = (ct7_entry_t *) local;
1243 
1244 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
1245 			cto->ct_header.rqs_entry_count = 1;
1246 			cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
1247 			ATPD_SET_SEQNO(cto, atp);
1248 			cto->ct_nphdl = atp->nphdl;
1249 			cto->ct_rxid = atp->tag;
1250 			cto->ct_iid_lo = atp->sid;
1251 			cto->ct_iid_hi = atp->sid >> 16;
1252 			cto->ct_oxid = atp->oxid;
1253 			cto->ct_vpidx = ISP_GET_VPIDX(isp, XS_CHANNEL(ccb));
1254 			cto->ct_timeout = XS_TIME(ccb);
1255 			cto->ct_flags = atp->tattr << CT7_TASK_ATTR_SHIFT;
1256 
1257 			/*
1258 			 * Mode 1, status, no data. Only possible when we are sending status, have
1259 			 * no data to transfer, and any sense data can fit into a ct7_entry_t.
1260 			 *
1261 			 * Mode 2, status, no data. We have to use this in the case that
1262 			 * the sense data won't fit into a ct7_entry_t.
1263 			 *
1264 			 */
1265 			if (sendstatus && xfrlen == 0) {
1266 				cto->ct_flags |= CT7_SENDSTATUS | CT7_NO_DATA;
1267 				resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
1268 				if (sense_length <= MAXRESPLEN_24XX) {
1269 					cto->ct_flags |= CT7_FLAG_MODE1;
1270 					cto->ct_scsi_status = cso->scsi_status;
1271 					if (resid < 0) {
1272 						cto->ct_resid = -resid;
1273 						cto->ct_scsi_status |= (FCP_RESID_OVERFLOW << 8);
1274 					} else if (resid > 0) {
1275 						cto->ct_resid = resid;
1276 						cto->ct_scsi_status |= (FCP_RESID_UNDERFLOW << 8);
1277 					}
1278 					if (fctape) {
1279 						cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1280 					}
1281 					if (sense_length) {
1282 						cto->ct_scsi_status |= (FCP_SNSLEN_VALID << 8);
1283 						cto->rsp.m1.ct_resplen = cto->ct_senselen = sense_length;
1284 						memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
1285 					}
1286 				} else {
1287 					bus_addr_t addr;
1288 					char buf[XCMD_SIZE];
1289 					fcp_rsp_iu_t *rp;
1290 
1291 					if (atp->ests == NULL) {
1292 						atp->ests = isp_get_ecmd(isp);
1293 						if (atp->ests == NULL) {
1294 							TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1295 							break;
1296 						}
1297 					}
1298 					memset(buf, 0, sizeof (buf));
1299 					rp = (fcp_rsp_iu_t *)buf;
1300 					if (fctape) {
1301 						cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1302 						rp->fcp_rsp_bits |= FCP_CONF_REQ;
1303 					}
1304 					cto->ct_flags |= CT7_FLAG_MODE2;
1305 	        			rp->fcp_rsp_scsi_status = cso->scsi_status;
1306 					if (resid < 0) {
1307 						rp->fcp_rsp_resid = -resid;
1308 						rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
1309 					} else if (resid > 0) {
1310 						rp->fcp_rsp_resid = resid;
1311 						rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
1312 					}
1313 					if (sense_length) {
1314 	        				rp->fcp_rsp_snslen = sense_length;
1315 						cto->ct_senselen = sense_length;
1316 						rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
1317 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1318 						memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
1319 					} else {
1320 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1321 					}
1322 					if (isp->isp_dblev & ISP_LOGTDEBUG1) {
1323 						isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
1324 					}
1325 					addr = isp->isp_osinfo.ecmd_dma;
1326 					addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
1327 					isp_prt(isp, ISP_LOGTDEBUG0, "%s: ests base %p vaddr %p ecmd_dma %jx addr %jx len %u", __func__, isp->isp_osinfo.ecmd_base, atp->ests,
1328 					    (uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
1329 					cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
1330 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_base = DMA_LO32(addr);
1331 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_basehi = DMA_HI32(addr);
1332 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1333 				}
1334 				if (sense_length) {
1335 					isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d slen %u sense: %x %x/%x/%x", __func__,
1336 					    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid, sense_length,
1337 					    cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
1338 				} else {
1339 					isp_prt(isp, ISP_LOGDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__,
1340 					    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid);
1341 				}
1342 				atp->state = ATPD_STATE_LAST_CTIO;
1343 			}
1344 
1345 			/*
1346 			 * Mode 0 data transfers, *possibly* with status.
1347 			 */
1348 			if (xfrlen != 0) {
1349 				cto->ct_flags |= CT7_FLAG_MODE0;
1350 				if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1351 					cto->ct_flags |= CT7_DATA_IN;
1352 				} else {
1353 					cto->ct_flags |= CT7_DATA_OUT;
1354 				}
1355 
1356 				cto->rsp.m0.reloff = atp->bytes_xfered + atp->bytes_in_transit;
1357 				cto->rsp.m0.ct_xfrlen = xfrlen;
1358 
1359 #ifdef	DEBUG
1360 				if (ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame && xfrlen > ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame) {
1361 					isp_prt(isp, ISP_LOGWARN, "%s: truncating data frame with xfrlen %d to %d", __func__, xfrlen, xfrlen - (xfrlen >> 2));
1362 					ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame = 0;
1363 					cto->rsp.m0.ct_xfrlen -= xfrlen >> 2;
1364 				}
1365 #endif
1366 				if (sendstatus) {
1367 					resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
1368 					if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /* && fctape == 0 */) {
1369 						cto->ct_flags |= CT7_SENDSTATUS;
1370 						atp->state = ATPD_STATE_LAST_CTIO;
1371 						if (fctape) {
1372 							cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1373 						}
1374 					} else {
1375 						atp->sendst = 1;	/* send status later */
1376 						cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
1377 						atp->state = ATPD_STATE_CTIO;
1378 					}
1379 				} else {
1380 					atp->state = ATPD_STATE_CTIO;
1381 				}
1382 				isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x xfrlen=%u off=%u", __func__,
1383 				    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, xfrlen, atp->bytes_xfered);
1384 			}
1385 		} else {
1386 			ct2_entry_t *cto = (ct2_entry_t *) local;
1387 
1388 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
1389 			cto->ct_header.rqs_entry_count = 1;
1390 			cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
1391 			ATPD_SET_SEQNO(cto, atp);
1392 			if (ISP_CAP_2KLOGIN(isp)) {
1393 				((ct2e_entry_t *)cto)->ct_iid = atp->nphdl;
1394 			} else {
1395 				cto->ct_iid = atp->nphdl;
1396 				if (ISP_CAP_SCCFW(isp) == 0) {
1397 					cto->ct_lun = ccb->ccb_h.target_lun;
1398 				}
1399 			}
1400 			cto->ct_timeout = XS_TIME(ccb);
1401 			cto->ct_rxid = cso->tag_id;
1402 
1403 			/*
1404 			 * Mode 1, status, no data. Only possible when we are sending status, have
1405 			 * no data to transfer, and the sense length can fit in the ct7_entry.
1406 			 *
1407 			 * Mode 2, status, no data. We have to use this in the case the response
1408 			 * length won't fit into a ct2_entry_t.
1409 			 *
1410 			 * We'll fill out this structure with information as if this were a
1411 			 * Mode 1. The hardware layer will create the Mode 2 FCP RSP IU as
1412 			 * needed based upon this.
1413 			 */
1414 			if (sendstatus && xfrlen == 0) {
1415 				cto->ct_flags |= CT2_SENDSTATUS | CT2_NO_DATA;
1416 				resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
1417 				if (sense_length <= MAXRESPLEN) {
1418 					if (resid < 0) {
1419 						cto->ct_resid = -resid;
1420 					} else if (resid > 0) {
1421 						cto->ct_resid = resid;
1422 					}
1423 					cto->ct_flags |= CT2_FLAG_MODE1;
1424 					cto->rsp.m1.ct_scsi_status = cso->scsi_status;
1425 					if (resid < 0) {
1426 						cto->rsp.m1.ct_scsi_status |= CT2_DATA_OVER;
1427 					} else if (resid > 0) {
1428 						cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
1429 					}
1430 					if (fctape) {
1431 						cto->ct_flags |= CT2_CONFIRM;
1432 					}
1433 					if (sense_length) {
1434 						cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
1435 						cto->rsp.m1.ct_resplen = cto->rsp.m1.ct_senselen = sense_length;
1436 						memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
1437 					}
1438 				} else {
1439 					bus_addr_t addr;
1440 					char buf[XCMD_SIZE];
1441 					fcp_rsp_iu_t *rp;
1442 
1443 					if (atp->ests == NULL) {
1444 						atp->ests = isp_get_ecmd(isp);
1445 						if (atp->ests == NULL) {
1446 							TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1447 							break;
1448 						}
1449 					}
1450 					memset(buf, 0, sizeof (buf));
1451 					rp = (fcp_rsp_iu_t *)buf;
1452 					if (fctape) {
1453 						cto->ct_flags |= CT2_CONFIRM;
1454 						rp->fcp_rsp_bits |= FCP_CONF_REQ;
1455 					}
1456 					cto->ct_flags |= CT2_FLAG_MODE2;
1457 	        			rp->fcp_rsp_scsi_status = cso->scsi_status;
1458 					if (resid < 0) {
1459 						rp->fcp_rsp_resid = -resid;
1460 						rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
1461 					} else if (resid > 0) {
1462 						rp->fcp_rsp_resid = resid;
1463 						rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
1464 					}
1465 					if (sense_length) {
1466 	        				rp->fcp_rsp_snslen = sense_length;
1467 						rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
1468 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1469 						memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
1470 					} else {
1471 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1472 					}
1473 					if (isp->isp_dblev & ISP_LOGTDEBUG1) {
1474 						isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
1475 					}
1476 					addr = isp->isp_osinfo.ecmd_dma;
1477 					addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
1478 					isp_prt(isp, ISP_LOGTDEBUG0, "%s: ests base %p vaddr %p ecmd_dma %jx addr %jx len %u", __func__, isp->isp_osinfo.ecmd_base, atp->ests,
1479 					    (uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
1480 					cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
1481 					cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_base = DMA_LO32(addr);
1482 					cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1483 				}
1484 				if (sense_length) {
1485 					isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d sense: %x %x/%x/%x", __func__,
1486 					    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid,
1487 					    cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
1488 				} else {
1489 					isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__, cto->ct_rxid,
1490 					    ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid);
1491 				}
1492 				atp->state = ATPD_STATE_LAST_CTIO;
1493 			}
1494 
1495 			if (xfrlen != 0) {
1496 				cto->ct_flags |= CT2_FLAG_MODE0;
1497 				if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1498 					cto->ct_flags |= CT2_DATA_IN;
1499 				} else {
1500 					cto->ct_flags |= CT2_DATA_OUT;
1501 				}
1502 
1503 				cto->ct_reloff = atp->bytes_xfered + atp->bytes_in_transit;
1504 				cto->rsp.m0.ct_xfrlen = xfrlen;
1505 
1506 				if (sendstatus) {
1507 					resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
1508 					if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /*&& fctape == 0*/) {
1509 						cto->ct_flags |= CT2_SENDSTATUS;
1510 						atp->state = ATPD_STATE_LAST_CTIO;
1511 						if (fctape) {
1512 							cto->ct_flags |= CT2_CONFIRM;
1513 						}
1514 					} else {
1515 						atp->sendst = 1;	/* send status later */
1516 						cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
1517 						atp->state = ATPD_STATE_CTIO;
1518 					}
1519 				} else {
1520 					atp->state = ATPD_STATE_CTIO;
1521 				}
1522 			}
1523 			isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[%x] seq %u nc %d CDB0=%x scsi status %x flags %x resid %d xfrlen %u offset %u", __func__, cto->ct_rxid,
1524 			    ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid, cso->dxfer_len, atp->bytes_xfered);
1525 		}
1526 
1527 		if (isp_get_pcmd(isp, ccb)) {
1528 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "out of PCMDs\n");
1529 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1530 			break;
1531 		}
1532 		handle = isp_allocate_handle(isp, ccb, ISP_HANDLE_TARGET);
1533 		if (handle == 0) {
1534 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "No XFLIST pointers for %s\n", __func__);
1535 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1536 			isp_free_pcmd(isp, ccb);
1537 			break;
1538 		}
1539 		atp->bytes_in_transit += xfrlen;
1540 		PISP_PCMD(ccb)->datalen = xfrlen;
1541 
1542 
1543 		/*
1544 		 * Call the dma setup routines for this entry (and any subsequent
1545 		 * CTIOs) if there's data to move, and then tell the f/w it's got
1546 		 * new things to play with. As with isp_start's usage of DMA setup,
1547 		 * any swizzling is done in the machine dependent layer. Because
1548 		 * of this, we put the request onto the queue area first in native
1549 		 * format.
1550 		 */
1551 
1552 		if (IS_24XX(isp)) {
1553 			ct7_entry_t *cto = (ct7_entry_t *) local;
1554 			cto->ct_syshandle = handle;
1555 		} else {
1556 			ct2_entry_t *cto = (ct2_entry_t *) local;
1557 			cto->ct_syshandle = handle;
1558 		}
1559 
1560 		dmaresult = ISP_DMASETUP(isp, cso, (ispreq_t *) local);
1561 		if (dmaresult != CMD_QUEUED) {
1562 			isp_destroy_handle(isp, handle);
1563 			isp_free_pcmd(isp, ccb);
1564 			if (dmaresult == CMD_EAGAIN) {
1565 				TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1566 				break;
1567 			}
1568 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1569 			xpt_done(ccb);
1570 			continue;
1571 		}
1572 		ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
1573 		if (xfrlen) {
1574 			ccb->ccb_h.spriv_field0 = atp->bytes_xfered;
1575 		} else {
1576 			ccb->ccb_h.spriv_field0 = ~0;
1577 		}
1578 		atp->ctcnt++;
1579 		atp->seqno++;
1580 	}
1581 }
1582 
1583 static void
1584 isp_refire_putback_atio(void *arg)
1585 {
1586 	union ccb *ccb = arg;
1587 
1588 	ISP_ASSERT_LOCKED((ispsoftc_t *)XS_ISP(ccb));
1589 	isp_target_putback_atio(ccb);
1590 }
1591 
1592 static void
1593 isp_refire_notify_ack(void *arg)
1594 {
1595 	isp_tna_t *tp  = arg;
1596 	ispsoftc_t *isp = tp->isp;
1597 
1598 	ISP_ASSERT_LOCKED(isp);
1599 	if (isp_notify_ack(isp, tp->not)) {
1600 		callout_schedule(&tp->timer, 5);
1601 	} else {
1602 		free(tp, M_DEVBUF);
1603 	}
1604 }
1605 
1606 
1607 static void
1608 isp_target_putback_atio(union ccb *ccb)
1609 {
1610 	ispsoftc_t *isp = XS_ISP(ccb);
1611 	struct ccb_scsiio *cso = &ccb->csio;
1612 	at2_entry_t local, *at = &local;
1613 
1614 	ISP_MEMZERO(at, sizeof (at2_entry_t));
1615 	at->at_header.rqs_entry_type = RQSTYPE_ATIO2;
1616 	at->at_header.rqs_entry_count = 1;
1617 	if (ISP_CAP_SCCFW(isp)) {
1618 		at->at_scclun = (uint16_t) ccb->ccb_h.target_lun;
1619 	} else {
1620 		at->at_lun = (uint8_t) ccb->ccb_h.target_lun;
1621 	}
1622 	at->at_status = CT_OK;
1623 	at->at_rxid = cso->tag_id;
1624 	at->at_iid = cso->init_id;
1625 	if (isp_target_put_entry(isp, at)) {
1626 		callout_reset(&PISP_PCMD(ccb)->wdog, 10,
1627 		    isp_refire_putback_atio, ccb);
1628 	} else
1629 		isp_complete_ctio(ccb);
1630 }
1631 
1632 static void
1633 isp_complete_ctio(union ccb *ccb)
1634 {
1635 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1636 		ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1637 		xpt_done(ccb);
1638 	}
1639 }
1640 
1641 static void
1642 isp_handle_platform_atio2(ispsoftc_t *isp, at2_entry_t *aep)
1643 {
1644 	fcparam *fcp;
1645 	lun_id_t lun;
1646 	fcportdb_t *lp;
1647 	tstate_t *tptr;
1648 	struct ccb_accept_tio *atiop;
1649 	uint16_t nphdl;
1650 	atio_private_data_t *atp;
1651 	inot_private_data_t *ntp;
1652 
1653 	/*
1654 	 * The firmware status (except for the QLTM_SVALID bit)
1655 	 * indicates why this ATIO was sent to us.
1656 	 *
1657 	 * If QLTM_SVALID is set, the firmware has recommended Sense Data.
1658 	 */
1659 	if ((aep->at_status & ~QLTM_SVALID) != AT_CDB) {
1660 		isp_prt(isp, ISP_LOGWARN, "bogus atio (0x%x) leaked to platform", aep->at_status);
1661 		isp_endcmd(isp, aep, NIL_HANDLE, 0, SCSI_STATUS_BUSY, 0);
1662 		return;
1663 	}
1664 
1665 	fcp = FCPARAM(isp, 0);
1666 	if (ISP_CAP_SCCFW(isp)) {
1667 		lun = aep->at_scclun;
1668 	} else {
1669 		lun = aep->at_lun;
1670 	}
1671 	if (ISP_CAP_2KLOGIN(isp)) {
1672 		nphdl = ((at2e_entry_t *)aep)->at_iid;
1673 	} else {
1674 		nphdl = aep->at_iid;
1675 	}
1676 	tptr = get_lun_statep(isp, 0, lun);
1677 	if (tptr == NULL) {
1678 		tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
1679 		if (tptr == NULL) {
1680 			isp_prt(isp, ISP_LOGWARN, "%s: [0x%x] no state pointer for lun %jx or wildcard", __func__, aep->at_rxid, (uintmax_t)lun);
1681 			if (lun == 0) {
1682 				isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
1683 			} else {
1684 				isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
1685 			}
1686 			return;
1687 		}
1688 	}
1689 
1690 	/*
1691 	 * Start any commands pending resources first.
1692 	 */
1693 	if (isp_atio_restart(isp, 0, tptr))
1694 		goto noresrc;
1695 
1696 	atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
1697 	if (atiop == NULL) {
1698 		goto noresrc;
1699 	}
1700 
1701 	atp = isp_get_atpd(isp, 0, aep->at_rxid);
1702 	if (atp == NULL) {
1703 		goto noresrc;
1704 	}
1705 
1706 	atp->state = ATPD_STATE_ATIO;
1707 	SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1708 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
1709 	atiop->ccb_h.target_id = ISP_MAX_TARGETS(isp);
1710 	atiop->ccb_h.target_lun = lun;
1711 
1712 	/*
1713 	 * We don't get 'suggested' sense data as we do with SCSI cards.
1714 	 */
1715 	atiop->sense_len = 0;
1716 
1717 	/*
1718 	 * If we're not in the port database, add ourselves.
1719 	 */
1720 	if (IS_2100(isp))
1721 		atiop->init_id = nphdl;
1722 	else {
1723 		if (isp_find_pdb_by_handle(isp, 0, nphdl, &lp)) {
1724 			atiop->init_id = FC_PORTDB_TGT(isp, 0, lp);
1725 		} else {
1726 			isp_prt(isp, ISP_LOGTINFO, "%s: port %x isn't in PDB",
1727 			    __func__, nphdl);
1728 			isp_dump_portdb(isp, 0);
1729 			isp_endcmd(isp, aep, NIL_HANDLE, 0, ECMD_TERMINATE, 0);
1730 			return;
1731 		}
1732 	}
1733 	atiop->cdb_len = ATIO2_CDBLEN;
1734 	ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cdb, ATIO2_CDBLEN);
1735 	atiop->ccb_h.status = CAM_CDB_RECVD;
1736 	atiop->tag_id = atp->tag;
1737 	switch (aep->at_taskflags & ATIO2_TC_ATTR_MASK) {
1738 	case ATIO2_TC_ATTR_SIMPLEQ:
1739 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1740 		atiop->tag_action = MSG_SIMPLE_Q_TAG;
1741 		break;
1742 	case ATIO2_TC_ATTR_HEADOFQ:
1743 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1744 		atiop->tag_action = MSG_HEAD_OF_Q_TAG;
1745 		break;
1746 	case ATIO2_TC_ATTR_ORDERED:
1747 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1748 		atiop->tag_action = MSG_ORDERED_Q_TAG;
1749 		break;
1750 	case ATIO2_TC_ATTR_ACAQ:		/* ?? */
1751 	case ATIO2_TC_ATTR_UNTAGGED:
1752 	default:
1753 		atiop->tag_action = 0;
1754 		break;
1755 	}
1756 
1757 	atp->orig_datalen = aep->at_datalen;
1758 	atp->bytes_xfered = 0;
1759 	atp->lun = lun;
1760 	atp->nphdl = nphdl;
1761 	atp->sid = PORT_ANY;
1762 	atp->oxid = aep->at_oxid;
1763 	atp->cdb0 = aep->at_cdb[0];
1764 	atp->tattr = aep->at_taskflags & ATIO2_TC_ATTR_MASK;
1765 	atp->state = ATPD_STATE_CAM;
1766 	xpt_done((union ccb *)atiop);
1767 	isp_prt(isp, ISP_LOGTDEBUG0, "ATIO2[0x%x] CDB=0x%x lun %jx datalen %u", aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
1768 	return;
1769 noresrc:
1770 	ntp = isp_get_ntpd(isp, 0);
1771 	if (ntp == NULL) {
1772 		isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
1773 		return;
1774 	}
1775 	memcpy(ntp->data, aep, QENTRY_LEN);
1776 	STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
1777 }
1778 
1779 static void
1780 isp_handle_platform_atio7(ispsoftc_t *isp, at7_entry_t *aep)
1781 {
1782 	int cdbxlen;
1783 	lun_id_t lun;
1784 	uint16_t chan, nphdl = NIL_HANDLE;
1785 	uint32_t did, sid;
1786 	fcportdb_t *lp;
1787 	tstate_t *tptr;
1788 	struct ccb_accept_tio *atiop;
1789 	atio_private_data_t *atp = NULL;
1790 	atio_private_data_t *oatp;
1791 	inot_private_data_t *ntp;
1792 
1793 	did = (aep->at_hdr.d_id[0] << 16) | (aep->at_hdr.d_id[1] << 8) | aep->at_hdr.d_id[2];
1794 	sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
1795 	lun = CAM_EXTLUN_BYTE_SWIZZLE(be64dec(aep->at_cmnd.fcp_cmnd_lun));
1796 
1797 	if (ISP_CAP_MULTI_ID(isp) && isp->isp_nchan > 1) {
1798 		/* Channel has to be derived from D_ID */
1799 		isp_find_chan_by_did(isp, did, &chan);
1800 		if (chan == ISP_NOCHAN) {
1801 			isp_prt(isp, ISP_LOGWARN,
1802 			    "%s: [RX_ID 0x%x] D_ID %x not found on any channel",
1803 			    __func__, aep->at_rxid, did);
1804 			isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN,
1805 			    ECMD_TERMINATE, 0);
1806 			return;
1807 		}
1808 	} else {
1809 		chan = 0;
1810 	}
1811 
1812 	/*
1813 	 * Find the PDB entry for this initiator
1814 	 */
1815 	if (isp_find_pdb_by_portid(isp, chan, sid, &lp) == 0) {
1816 		/*
1817 		 * If we're not in the port database terminate the exchange.
1818 		 */
1819 		isp_prt(isp, ISP_LOGTINFO, "%s: [RX_ID 0x%x] D_ID 0x%06x found on Chan %d for S_ID 0x%06x wasn't in PDB already",
1820 		    __func__, aep->at_rxid, did, chan, sid);
1821 		isp_dump_portdb(isp, chan);
1822 		isp_endcmd(isp, aep, NIL_HANDLE, chan, ECMD_TERMINATE, 0);
1823 		return;
1824 	}
1825 	nphdl = lp->handle;
1826 
1827 	/*
1828 	 * Get the tstate pointer
1829 	 */
1830 	tptr = get_lun_statep(isp, chan, lun);
1831 	if (tptr == NULL) {
1832 		tptr = get_lun_statep(isp, chan, CAM_LUN_WILDCARD);
1833 		if (tptr == NULL) {
1834 			isp_prt(isp, ISP_LOGWARN,
1835 			    "%s: [0x%x] no state pointer for lun %jx or wildcard",
1836 			    __func__, aep->at_rxid, (uintmax_t)lun);
1837 			if (lun == 0) {
1838 				isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
1839 			} else {
1840 				isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
1841 			}
1842 			return;
1843 		}
1844 	}
1845 
1846 	/*
1847 	 * Start any commands pending resources first.
1848 	 */
1849 	if (isp_atio_restart(isp, chan, tptr))
1850 		goto noresrc;
1851 
1852 	/*
1853 	 * If the f/w is out of resources, just send a BUSY status back.
1854 	 */
1855 	if (aep->at_rxid == AT7_NORESRC_RXID) {
1856 		isp_endcmd(isp, aep, nphdl, chan, SCSI_BUSY, 0);
1857 		return;
1858 	}
1859 
1860 	/*
1861 	 * If we're out of resources, just send a BUSY status back.
1862 	 */
1863 	atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
1864 	if (atiop == NULL) {
1865 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atios", aep->at_rxid);
1866 		goto noresrc;
1867 	}
1868 
1869 	oatp = isp_find_atpd(isp, chan, aep->at_rxid);
1870 	if (oatp) {
1871 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] tag wraparound in isp_handle_platforms_atio7 (N-Port Handle 0x%04x S_ID 0x%04x OX_ID 0x%04x) oatp state %d",
1872 		    aep->at_rxid, nphdl, sid, aep->at_hdr.ox_id, oatp->state);
1873 		/*
1874 		 * It's not a "no resource" condition- but we can treat it like one
1875 		 */
1876 		goto noresrc;
1877 	}
1878 	atp = isp_get_atpd(isp, chan, aep->at_rxid);
1879 	if (atp == NULL) {
1880 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atps", aep->at_rxid);
1881 		goto noresrc;
1882 	}
1883 	atp->word3 = lp->prli_word3;
1884 	atp->state = ATPD_STATE_ATIO;
1885 	SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1886 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
1887 	atiop->init_id = FC_PORTDB_TGT(isp, chan, lp);
1888 	atiop->ccb_h.target_id = ISP_MAX_TARGETS(isp);
1889 	atiop->ccb_h.target_lun = lun;
1890 	atiop->sense_len = 0;
1891 	cdbxlen = aep->at_cmnd.fcp_cmnd_alen_datadir >> FCP_CMND_ADDTL_CDBLEN_SHIFT;
1892 	if (cdbxlen) {
1893 		isp_prt(isp, ISP_LOGWARN, "additional CDBLEN ignored");
1894 	}
1895 	cdbxlen = sizeof (aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb);
1896 	ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb, cdbxlen);
1897 	atiop->cdb_len = cdbxlen;
1898 	atiop->ccb_h.status = CAM_CDB_RECVD;
1899 	atiop->tag_id = atp->tag;
1900 	switch (aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK) {
1901 	case FCP_CMND_TASK_ATTR_SIMPLE:
1902 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1903 		atiop->tag_action = MSG_SIMPLE_Q_TAG;
1904 		break;
1905 	case FCP_CMND_TASK_ATTR_HEAD:
1906 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1907 		atiop->tag_action = MSG_HEAD_OF_Q_TAG;
1908 		break;
1909 	case FCP_CMND_TASK_ATTR_ORDERED:
1910 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1911 		atiop->tag_action = MSG_ORDERED_Q_TAG;
1912 		break;
1913 	default:
1914 		/* FALLTHROUGH */
1915 	case FCP_CMND_TASK_ATTR_ACA:
1916 	case FCP_CMND_TASK_ATTR_UNTAGGED:
1917 		atiop->tag_action = 0;
1918 		break;
1919 	}
1920 	atp->orig_datalen = aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl;
1921 	atp->bytes_xfered = 0;
1922 	atp->lun = lun;
1923 	atp->nphdl = nphdl;
1924 	atp->sid = sid;
1925 	atp->did = did;
1926 	atp->oxid = aep->at_hdr.ox_id;
1927 	atp->rxid = aep->at_hdr.rx_id;
1928 	atp->cdb0 = atiop->cdb_io.cdb_bytes[0];
1929 	atp->tattr = aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK;
1930 	atp->state = ATPD_STATE_CAM;
1931 	isp_prt(isp, ISP_LOGTDEBUG0, "ATIO7[0x%x] CDB=0x%x lun %jx datalen %u",
1932 	    aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
1933 	xpt_done((union ccb *)atiop);
1934 	return;
1935 noresrc:
1936 	if (atp)
1937 		isp_put_atpd(isp, chan, atp);
1938 	ntp = isp_get_ntpd(isp, chan);
1939 	if (ntp == NULL) {
1940 		isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
1941 		return;
1942 	}
1943 	memcpy(ntp->data, aep, QENTRY_LEN);
1944 	STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
1945 }
1946 
1947 
1948 /*
1949  * Handle starting an SRR (sequence retransmit request)
1950  * We get here when we've gotten the immediate notify
1951  * and the return of all outstanding CTIOs for this
1952  * transaction.
1953  */
1954 static void
1955 isp_handle_srr_start(ispsoftc_t *isp, atio_private_data_t *atp)
1956 {
1957 	in_fcentry_24xx_t *inot;
1958 	uint32_t srr_off, ccb_off, ccb_len, ccb_end;
1959 	union ccb *ccb;
1960 
1961 	inot = (in_fcentry_24xx_t *)atp->srr;
1962 	srr_off = inot->in_srr_reloff_lo | (inot->in_srr_reloff_hi << 16);
1963 	ccb = atp->srr_ccb;
1964 	atp->srr_ccb = NULL;
1965 	atp->nsrr++;
1966 	if (ccb == NULL) {
1967 		isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] null ccb", atp->tag);
1968 		goto fail;
1969 	}
1970 
1971 	ccb_off = ccb->ccb_h.spriv_field0;
1972 	ccb_len = ccb->csio.dxfer_len;
1973         ccb_end = (ccb_off == ~0)? ~0 : ccb_off + ccb_len;
1974 
1975 	switch (inot->in_srr_iu) {
1976 	case R_CTL_INFO_SOLICITED_DATA:
1977 		/*
1978 		 * We have to restart a FCP_DATA data out transaction
1979 		 */
1980 		atp->sendst = 0;
1981 		atp->bytes_xfered = srr_off;
1982 		if (ccb_len == 0) {
1983 			isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x but current CCB doesn't transfer data", atp->tag, srr_off);
1984 			goto mdp;
1985 		}
1986  		if (srr_off < ccb_off || ccb_off > srr_off + ccb_len) {
1987 			isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x not covered by current CCB data range [0x%x..0x%x]", atp->tag, srr_off, ccb_off, ccb_end);
1988 			goto mdp;
1989 		}
1990 		isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x covered by current CCB data range [0x%x..0x%x]", atp->tag, srr_off, ccb_off, ccb_end);
1991 		break;
1992 	case R_CTL_INFO_COMMAND_STATUS:
1993 		isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] Got an FCP RSP SRR- resending status", atp->tag);
1994 		atp->sendst = 1;
1995 		/*
1996 		 * We have to restart a FCP_RSP IU transaction
1997 		 */
1998 		break;
1999 	case R_CTL_INFO_DATA_DESCRIPTOR:
2000 		/*
2001 		 * We have to restart an FCP DATA in transaction
2002 		 */
2003 		isp_prt(isp, ISP_LOGWARN, "Got an FCP DATA IN SRR- dropping");
2004 		goto fail;
2005 
2006 	default:
2007 		isp_prt(isp, ISP_LOGWARN, "Got an unknown information (%x) SRR- dropping", inot->in_srr_iu);
2008 		goto fail;
2009 	}
2010 
2011 	/*
2012 	 * We can't do anything until this is acked, so we might as well start it now.
2013 	 * We aren't going to do the usual asynchronous ack issue because we need
2014 	 * to make sure this gets on the wire first.
2015 	 */
2016 	if (isp_notify_ack(isp, inot)) {
2017 		isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
2018 		goto fail;
2019 	}
2020 	isp_target_start_ctio(isp, ccb, FROM_SRR);
2021 	return;
2022 fail:
2023 	inot->in_reserved = 1;
2024 	isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
2025 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2026 	ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
2027 	isp_complete_ctio(ccb);
2028 	return;
2029 mdp:
2030 	if (isp_notify_ack(isp, inot)) {
2031 		isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
2032 		goto fail;
2033 	}
2034 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2035 	ccb->ccb_h.status = CAM_MESSAGE_RECV;
2036 	/*
2037 	 * This is not a strict interpretation of MDP, but it's close
2038 	 */
2039 	ccb->csio.msg_ptr = &ccb->csio.sense_data.sense_buf[SSD_FULL_SIZE - 16];
2040 	ccb->csio.msg_len = 7;
2041 	ccb->csio.msg_ptr[0] = MSG_EXTENDED;
2042 	ccb->csio.msg_ptr[1] = 5;
2043 	ccb->csio.msg_ptr[2] = 0;	/* modify data pointer */
2044 	ccb->csio.msg_ptr[3] = srr_off >> 24;
2045 	ccb->csio.msg_ptr[4] = srr_off >> 16;
2046 	ccb->csio.msg_ptr[5] = srr_off >> 8;
2047 	ccb->csio.msg_ptr[6] = srr_off;
2048 	isp_complete_ctio(ccb);
2049 }
2050 
2051 
2052 static void
2053 isp_handle_platform_srr(ispsoftc_t *isp, isp_notify_t *notify)
2054 {
2055 	in_fcentry_24xx_t *inot = notify->nt_lreserved;
2056 	atio_private_data_t *atp;
2057 	uint32_t tag = notify->nt_tagval & 0xffffffff;
2058 
2059 	atp = isp_find_atpd(isp, notify->nt_channel, tag);
2060 	if (atp == NULL) {
2061 		isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x in SRR Notify",
2062 		    __func__, tag);
2063 		isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
2064 		return;
2065 	}
2066 	atp->srr_notify_rcvd = 1;
2067 	memcpy(atp->srr, inot, sizeof (atp->srr));
2068 	isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] flags 0x%x srr_iu %x reloff 0x%x",
2069 	    inot->in_rxid, inot->in_flags, inot->in_srr_iu,
2070 	    ((uint32_t)inot->in_srr_reloff_hi << 16) | inot->in_srr_reloff_lo);
2071 	if (atp->srr_ccb)
2072 		isp_handle_srr_start(isp, atp);
2073 }
2074 
2075 static void
2076 isp_handle_platform_ctio(ispsoftc_t *isp, void *arg)
2077 {
2078 	union ccb *ccb;
2079 	int sentstatus = 0, ok = 0, notify_cam = 0, failure = 0;
2080 	atio_private_data_t *atp = NULL;
2081 	int bus;
2082 	uint32_t handle, data_requested, resid;
2083 
2084 	handle = ((ct2_entry_t *)arg)->ct_syshandle;
2085 	ccb = isp_find_xs(isp, handle);
2086 	if (ccb == NULL) {
2087 		isp_print_bytes(isp, "null ccb in isp_handle_platform_ctio", QENTRY_LEN, arg);
2088 		return;
2089 	}
2090 	isp_destroy_handle(isp, handle);
2091 	resid = data_requested = PISP_PCMD(ccb)->datalen;
2092 	isp_free_pcmd(isp, ccb);
2093 
2094 	bus = XS_CHANNEL(ccb);
2095 	if (IS_24XX(isp)) {
2096 		atp = isp_find_atpd(isp, bus, ((ct7_entry_t *)arg)->ct_rxid);
2097 	} else {
2098 		atp = isp_find_atpd(isp, bus, ((ct2_entry_t *)arg)->ct_rxid);
2099 	}
2100 	if (atp == NULL) {
2101 		/*
2102 		 * XXX: isp_clear_commands() generates fake CTIO with zero
2103 		 * ct_rxid value, filling only ct_syshandle.  Workaround
2104 		 * that using tag_id from the CCB, pointed by ct_syshandle.
2105 		 */
2106 		atp = isp_find_atpd(isp, bus, ccb->csio.tag_id);
2107 	}
2108 	if (atp == NULL) {
2109 		isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x after I/O", __func__, ccb->csio.tag_id);
2110 		return;
2111 	}
2112 	KASSERT((atp->ctcnt > 0), ("ctio count not greater than zero"));
2113 	atp->bytes_in_transit -= data_requested;
2114 	atp->ctcnt -= 1;
2115 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2116 
2117 	if (IS_24XX(isp)) {
2118 		ct7_entry_t *ct = arg;
2119 
2120 		if (ct->ct_nphdl == CT7_SRR) {
2121 			atp->srr_ccb = ccb;
2122 			if (atp->srr_notify_rcvd)
2123 				isp_handle_srr_start(isp, atp);
2124 			return;
2125 		}
2126 		if (ct->ct_nphdl == CT_HBA_RESET) {
2127 			sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2128 			    (atp->sendst == 0);
2129 			failure = CAM_UNREC_HBA_ERROR;
2130 		} else {
2131 			sentstatus = ct->ct_flags & CT7_SENDSTATUS;
2132 			ok = (ct->ct_nphdl == CT7_OK);
2133 			notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
2134 			if ((ct->ct_flags & CT7_DATAMASK) != CT7_NO_DATA)
2135 				resid = ct->ct_resid;
2136 		}
2137 		isp_prt(isp, ok? ISP_LOGTDEBUG0 : ISP_LOGWARN, "%s: CTIO7[%x] seq %u nc %d sts 0x%x flg 0x%x sns %d resid %d %s", __func__, ct->ct_rxid, ATPD_GET_SEQNO(ct),
2138 		   notify_cam, ct->ct_nphdl, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
2139 	} else {
2140 		ct2_entry_t *ct = arg;
2141 		if (ct->ct_status == CT_SRR) {
2142 			atp->srr_ccb = ccb;
2143 			if (atp->srr_notify_rcvd)
2144 				isp_handle_srr_start(isp, atp);
2145 			isp_target_putback_atio(ccb);
2146 			return;
2147 		}
2148 		if (ct->ct_status == CT_HBA_RESET) {
2149 			sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2150 			    (atp->sendst == 0);
2151 			failure = CAM_UNREC_HBA_ERROR;
2152 		} else {
2153 			sentstatus = ct->ct_flags & CT2_SENDSTATUS;
2154 			ok = (ct->ct_status & ~QLTM_SVALID) == CT_OK;
2155 			notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
2156 			if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA)
2157 				resid = ct->ct_resid;
2158 		}
2159 		isp_prt(isp, ok? ISP_LOGTDEBUG0 : ISP_LOGWARN, "%s: CTIO2[%x] seq %u nc %d sts 0x%x flg 0x%x sns %d resid %d %s", __func__, ct->ct_rxid, ATPD_GET_SEQNO(ct),
2160 		    notify_cam, ct->ct_status, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
2161 	}
2162 	if (ok) {
2163 		if (data_requested > 0) {
2164 			atp->bytes_xfered += data_requested - resid;
2165 			ccb->csio.resid = ccb->csio.dxfer_len -
2166 			    (data_requested - resid);
2167 		}
2168 		if (sentstatus && (ccb->ccb_h.flags & CAM_SEND_SENSE))
2169 			ccb->ccb_h.status |= CAM_SENT_SENSE;
2170 		ccb->ccb_h.status |= CAM_REQ_CMP;
2171 	} else {
2172 		notify_cam = 1;
2173 		if (failure == CAM_UNREC_HBA_ERROR)
2174 			ccb->ccb_h.status |= CAM_UNREC_HBA_ERROR;
2175 		else
2176 			ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
2177 	}
2178 	atp->state = ATPD_STATE_PDON;
2179 
2180 	/*
2181 	 * We never *not* notify CAM when there has been any error (ok == 0),
2182 	 * so we never need to do an ATIO putback if we're not notifying CAM.
2183 	 */
2184 	isp_prt(isp, ISP_LOGTDEBUG0, "%s CTIO[0x%x] done (ok=%d nc=%d nowsendstatus=%d ccb ss=%d)",
2185 	    (sentstatus)? "  FINAL " : "MIDTERM ", atp->tag, ok, notify_cam, atp->sendst, (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0);
2186 	if (notify_cam == 0) {
2187 		if (atp->sendst) {
2188 			isp_target_start_ctio(isp, ccb, FROM_CTIO_DONE);
2189 		}
2190 		return;
2191 	}
2192 
2193 	/*
2194 	 * We are done with this ATIO if we successfully sent status.
2195 	 * In all other cases expect either another CTIO or XPT_ABORT.
2196 	 */
2197 	if (ok && sentstatus)
2198 		isp_put_atpd(isp, bus, atp);
2199 
2200 	/*
2201 	 * We're telling CAM we're done with this CTIO transaction.
2202 	 *
2203 	 * 24XX cards never need an ATIO put back.
2204 	 *
2205 	 * Other cards need one put back only on error.
2206 	 * In the latter case, a timeout will re-fire
2207 	 * and try again in case we didn't have
2208 	 * queue resources to do so at first. In any case,
2209 	 * once the putback is done we do the completion
2210 	 * call.
2211 	 */
2212 	if (ok || IS_24XX(isp)) {
2213 		isp_complete_ctio(ccb);
2214 	} else {
2215 		isp_target_putback_atio(ccb);
2216 	}
2217 }
2218 
2219 static int
2220 isp_handle_platform_target_notify_ack(ispsoftc_t *isp, isp_notify_t *mp, uint32_t rsp)
2221 {
2222 
2223 	if (isp->isp_state != ISP_RUNSTATE) {
2224 		isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) acked- h/w not ready (dropping)", mp->nt_ncode, mp->nt_lreserved != NULL);
2225 		return (0);
2226 	}
2227 
2228 	/*
2229 	 * This case is for a Task Management Function, which shows up as an ATIO7 entry.
2230 	 */
2231 	if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ATIO) {
2232 		ct7_entry_t local, *cto = &local;
2233 		at7_entry_t *aep = (at7_entry_t *)mp->nt_lreserved;
2234 		fcportdb_t *lp;
2235 		uint32_t sid;
2236 		uint16_t nphdl;
2237 
2238 		sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
2239 		if (isp_find_pdb_by_portid(isp, mp->nt_channel, sid, &lp)) {
2240 			nphdl = lp->handle;
2241 		} else {
2242 			nphdl = NIL_HANDLE;
2243 		}
2244 		ISP_MEMZERO(&local, sizeof (local));
2245 		cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2246 		cto->ct_header.rqs_entry_count = 1;
2247 		cto->ct_nphdl = nphdl;
2248 		cto->ct_rxid = aep->at_rxid;
2249 		cto->ct_vpidx = mp->nt_channel;
2250 		cto->ct_iid_lo = sid;
2251 		cto->ct_iid_hi = sid >> 16;
2252 		cto->ct_oxid = aep->at_hdr.ox_id;
2253 		cto->ct_flags = CT7_SENDSTATUS|CT7_NOACK|CT7_NO_DATA|CT7_FLAG_MODE1;
2254 		cto->ct_flags |= (aep->at_ta_len >> 12) << CT7_TASK_ATTR_SHIFT;
2255 		if (rsp != 0) {
2256 			cto->ct_scsi_status |= (FCP_RSPLEN_VALID << 8);
2257 			cto->rsp.m1.ct_resplen = 4;
2258 			ISP_MEMZERO(cto->rsp.m1.ct_resp, sizeof (cto->rsp.m1.ct_resp));
2259 			cto->rsp.m1.ct_resp[0] = rsp & 0xff;
2260 			cto->rsp.m1.ct_resp[1] = (rsp >> 8) & 0xff;
2261 			cto->rsp.m1.ct_resp[2] = (rsp >> 16) & 0xff;
2262 			cto->rsp.m1.ct_resp[3] = (rsp >> 24) & 0xff;
2263 		}
2264 		return (isp_target_put_entry(isp, &local));
2265 	}
2266 
2267 	/*
2268 	 * This case is for a responding to an ABTS frame
2269 	 */
2270 	if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
2271 
2272 		/*
2273 		 * Overload nt_need_ack here to mark whether we've terminated the associated command.
2274 		 */
2275 		if (mp->nt_need_ack) {
2276 			uint8_t storage[QENTRY_LEN];
2277 			ct7_entry_t *cto = (ct7_entry_t *) storage;
2278 			abts_t *abts = (abts_t *)mp->nt_lreserved;
2279 
2280 			ISP_MEMZERO(cto, sizeof (ct7_entry_t));
2281 			isp_prt(isp, ISP_LOGTDEBUG0, "%s: [%x] terminating after ABTS received", __func__, abts->abts_rxid_task);
2282 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2283 			cto->ct_header.rqs_entry_count = 1;
2284 			cto->ct_nphdl = mp->nt_nphdl;
2285 			cto->ct_rxid = abts->abts_rxid_task;
2286 			cto->ct_iid_lo = mp->nt_sid;
2287 			cto->ct_iid_hi = mp->nt_sid >> 16;
2288 			cto->ct_oxid = abts->abts_ox_id;
2289 			cto->ct_vpidx = mp->nt_channel;
2290 			cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
2291 			if (isp_target_put_entry(isp, cto)) {
2292 				return (ENOMEM);
2293 			}
2294 			mp->nt_need_ack = 0;
2295 		}
2296 		if (isp_acknak_abts(isp, mp->nt_lreserved, 0) == ENOMEM) {
2297 			return (ENOMEM);
2298 		} else {
2299 			return (0);
2300 		}
2301 	}
2302 
2303 	/*
2304 	 * Handle logout cases here
2305 	 */
2306 	if (mp->nt_ncode == NT_GLOBAL_LOGOUT) {
2307 		isp_del_all_wwn_entries(isp, mp->nt_channel);
2308 	}
2309 
2310 	if (mp->nt_ncode == NT_LOGOUT) {
2311 		if (!IS_2100(isp) && IS_FC(isp)) {
2312 			isp_del_wwn_entries(isp, mp);
2313 		}
2314 	}
2315 
2316 	/*
2317 	 * General purpose acknowledgement
2318 	 */
2319 	if (mp->nt_need_ack) {
2320 		isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) being acked", mp->nt_ncode, mp->nt_lreserved != NULL);
2321 		/*
2322 		 * Don't need to use the guaranteed send because the caller can retry
2323 		 */
2324 		return (isp_notify_ack(isp, mp->nt_lreserved));
2325 	}
2326 	return (0);
2327 }
2328 
2329 /*
2330  * Handle task management functions.
2331  *
2332  * We show up here with a notify structure filled out.
2333  *
2334  * The nt_lreserved tag points to the original queue entry
2335  */
2336 static void
2337 isp_handle_platform_target_tmf(ispsoftc_t *isp, isp_notify_t *notify)
2338 {
2339 	tstate_t *tptr;
2340 	fcportdb_t *lp;
2341 	struct ccb_immediate_notify *inot;
2342 	inot_private_data_t *ntp = NULL;
2343 	atio_private_data_t *atp;
2344 	lun_id_t lun;
2345 
2346 	isp_prt(isp, ISP_LOGTDEBUG0, "%s: code 0x%x sid  0x%x tagval 0x%016llx chan %d lun %jx", __func__, notify->nt_ncode,
2347 	    notify->nt_sid, (unsigned long long) notify->nt_tagval, notify->nt_channel, notify->nt_lun);
2348 	if (notify->nt_lun == LUN_ANY) {
2349 		if (notify->nt_tagval == TAG_ANY) {
2350 			lun = CAM_LUN_WILDCARD;
2351 		} else {
2352 			atp = isp_find_atpd(isp, notify->nt_channel,
2353 			    notify->nt_tagval & 0xffffffff);
2354 			lun = atp ? atp->lun : CAM_LUN_WILDCARD;
2355 		}
2356 	} else {
2357 		lun = notify->nt_lun;
2358 	}
2359 	tptr = get_lun_statep(isp, notify->nt_channel, lun);
2360 	if (tptr == NULL) {
2361 		tptr = get_lun_statep(isp, notify->nt_channel, CAM_LUN_WILDCARD);
2362 		if (tptr == NULL) {
2363 			isp_prt(isp, ISP_LOGWARN, "%s: no state pointer found for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
2364 			goto bad;
2365 		}
2366 	}
2367 	inot = (struct ccb_immediate_notify *) SLIST_FIRST(&tptr->inots);
2368 	if (inot == NULL) {
2369 		isp_prt(isp, ISP_LOGWARN, "%s: out of immediate notify structures for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
2370 		goto bad;
2371 	}
2372 
2373 	inot->ccb_h.target_id = ISP_MAX_TARGETS(isp);
2374 	inot->ccb_h.target_lun = lun;
2375 	if (isp_find_pdb_by_portid(isp, notify->nt_channel, notify->nt_sid, &lp) == 0 &&
2376 	    isp_find_pdb_by_handle(isp, notify->nt_channel, notify->nt_nphdl, &lp) == 0) {
2377 		inot->initiator_id = CAM_TARGET_WILDCARD;
2378 	} else {
2379 		inot->initiator_id = FC_PORTDB_TGT(isp, notify->nt_channel, lp);
2380 	}
2381 	inot->seq_id = notify->nt_tagval;
2382 	inot->tag_id = notify->nt_tagval >> 32;
2383 
2384 	switch (notify->nt_ncode) {
2385 	case NT_ABORT_TASK:
2386 		isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, inot->tag_id);
2387 		inot->arg = MSG_ABORT_TASK;
2388 		break;
2389 	case NT_ABORT_TASK_SET:
2390 		isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, TAG_ANY);
2391 		inot->arg = MSG_ABORT_TASK_SET;
2392 		break;
2393 	case NT_CLEAR_ACA:
2394 		inot->arg = MSG_CLEAR_ACA;
2395 		break;
2396 	case NT_CLEAR_TASK_SET:
2397 		inot->arg = MSG_CLEAR_TASK_SET;
2398 		break;
2399 	case NT_LUN_RESET:
2400 		inot->arg = MSG_LOGICAL_UNIT_RESET;
2401 		break;
2402 	case NT_TARGET_RESET:
2403 		inot->arg = MSG_TARGET_RESET;
2404 		break;
2405 	case NT_QUERY_TASK_SET:
2406 		inot->arg = MSG_QUERY_TASK_SET;
2407 		break;
2408 	case NT_QUERY_ASYNC_EVENT:
2409 		inot->arg = MSG_QUERY_ASYNC_EVENT;
2410 		break;
2411 	default:
2412 		isp_prt(isp, ISP_LOGWARN, "%s: unknown TMF code 0x%x for chan %d lun %#jx", __func__, notify->nt_ncode, notify->nt_channel, (uintmax_t)lun);
2413 		goto bad;
2414 	}
2415 
2416 	ntp = isp_get_ntpd(isp, notify->nt_channel);
2417 	if (ntp == NULL) {
2418 		isp_prt(isp, ISP_LOGWARN, "%s: out of inotify private structures", __func__);
2419 		goto bad;
2420 	}
2421 	ISP_MEMCPY(&ntp->nt, notify, sizeof (isp_notify_t));
2422 	if (notify->nt_lreserved) {
2423 		ISP_MEMCPY(&ntp->data, notify->nt_lreserved, QENTRY_LEN);
2424 		ntp->nt.nt_lreserved = &ntp->data;
2425 	}
2426 	ntp->seq_id = notify->nt_tagval;
2427 	ntp->tag_id = notify->nt_tagval >> 32;
2428 
2429 	SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
2430 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, inot->ccb_h.path, "Take FREE INOT\n");
2431 	inot->ccb_h.status = CAM_MESSAGE_RECV;
2432 	xpt_done((union ccb *)inot);
2433 	return;
2434 bad:
2435 	if (notify->nt_need_ack) {
2436 		if (((isphdr_t *)notify->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
2437 			if (isp_acknak_abts(isp, notify->nt_lreserved, ENOMEM)) {
2438 				isp_prt(isp, ISP_LOGWARN, "you lose- unable to send an ACKNAK");
2439 			}
2440 		} else {
2441 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, notify->nt_lreserved);
2442 		}
2443 	}
2444 }
2445 
2446 static void
2447 isp_target_mark_aborted_early(ispsoftc_t *isp, int chan, tstate_t *tptr, uint32_t tag_id)
2448 {
2449 	atio_private_data_t *atp, *atpool;
2450 	inot_private_data_t *ntp, *tmp;
2451 	uint32_t this_tag_id;
2452 
2453 	/*
2454 	 * First, clean any commands pending restart
2455 	 */
2456 	STAILQ_FOREACH_SAFE(ntp, &tptr->restart_queue, next, tmp) {
2457 		if (IS_24XX(isp))
2458 			this_tag_id = ((at7_entry_t *)ntp->data)->at_rxid;
2459 		else
2460 			this_tag_id = ((at2_entry_t *)ntp->data)->at_rxid;
2461 		if ((uint64_t)tag_id == TAG_ANY || tag_id == this_tag_id) {
2462 			isp_endcmd(isp, ntp->data, NIL_HANDLE, chan,
2463 			    ECMD_TERMINATE, 0);
2464 			isp_put_ntpd(isp, chan, ntp);
2465 			STAILQ_REMOVE(&tptr->restart_queue, ntp,
2466 			    inot_private_data, next);
2467 		}
2468 	}
2469 
2470 	/*
2471 	 * Now mark other ones dead as well.
2472 	 */
2473 	ISP_GET_PC(isp, chan, atpool, atpool);
2474 	for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
2475 		if (atp->lun != tptr->ts_lun)
2476 			continue;
2477 		if ((uint64_t)tag_id == TAG_ANY || atp->tag == tag_id)
2478 			atp->dead = 1;
2479 	}
2480 }
2481 #endif
2482 
2483 static void
2484 isp_cam_async(void *cbarg, uint32_t code, struct cam_path *path, void *arg)
2485 {
2486 	struct cam_sim *sim;
2487 	int bus, tgt;
2488 	ispsoftc_t *isp;
2489 
2490 	sim = (struct cam_sim *)cbarg;
2491 	isp = (ispsoftc_t *) cam_sim_softc(sim);
2492 	bus = cam_sim_bus(sim);
2493 	tgt = xpt_path_target_id(path);
2494 
2495 	switch (code) {
2496 	case AC_LOST_DEVICE:
2497 		if (IS_SCSI(isp)) {
2498 			uint16_t oflags, nflags;
2499 			sdparam *sdp = SDPARAM(isp, bus);
2500 
2501 			if (tgt >= 0) {
2502 				nflags = sdp->isp_devparam[tgt].nvrm_flags;
2503 				nflags &= DPARM_SAFE_DFLT;
2504 				if (isp->isp_loaded_fw) {
2505 					nflags |= DPARM_NARROW | DPARM_ASYNC;
2506 				}
2507 				oflags = sdp->isp_devparam[tgt].goal_flags;
2508 				sdp->isp_devparam[tgt].goal_flags = nflags;
2509 				sdp->isp_devparam[tgt].dev_update = 1;
2510 				sdp->update = 1;
2511 				(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
2512 				sdp->isp_devparam[tgt].goal_flags = oflags;
2513 			}
2514 		}
2515 		break;
2516 	default:
2517 		isp_prt(isp, ISP_LOGWARN, "isp_cam_async: Code 0x%x", code);
2518 		break;
2519 	}
2520 }
2521 
2522 static void
2523 isp_poll(struct cam_sim *sim)
2524 {
2525 	ispsoftc_t *isp = cam_sim_softc(sim);
2526 
2527 	ISP_RUN_ISR(isp);
2528 }
2529 
2530 
2531 static void
2532 isp_watchdog(void *arg)
2533 {
2534 	struct ccb_scsiio *xs = arg;
2535 	ispsoftc_t *isp;
2536 	uint32_t ohandle = ISP_HANDLE_FREE, handle;
2537 
2538 	isp = XS_ISP(xs);
2539 
2540 	handle = isp_find_handle(isp, xs);
2541 
2542 	/*
2543 	 * Hand crank the interrupt code just to be sure the command isn't stuck somewhere.
2544 	 */
2545 	if (handle != ISP_HANDLE_FREE) {
2546 		ISP_RUN_ISR(isp);
2547 		ohandle = handle;
2548 		handle = isp_find_handle(isp, xs);
2549 	}
2550 	if (handle != ISP_HANDLE_FREE) {
2551 		/*
2552 		 * Try and make sure the command is really dead before
2553 		 * we release the handle (and DMA resources) for reuse.
2554 		 *
2555 		 * If we are successful in aborting the command then
2556 		 * we're done here because we'll get the command returned
2557 		 * back separately.
2558 		 */
2559 		if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
2560 			return;
2561 		}
2562 
2563 		/*
2564 		 * Note that after calling the above, the command may in
2565 		 * fact have been completed.
2566 		 */
2567 		xs = isp_find_xs(isp, handle);
2568 
2569 		/*
2570 		 * If the command no longer exists, then we won't
2571 		 * be able to find the xs again with this handle.
2572 		 */
2573 		if (xs == NULL) {
2574 			return;
2575 		}
2576 
2577 		/*
2578 		 * After this point, the command is really dead.
2579 		 */
2580 		if (XS_XFRLEN(xs)) {
2581 			ISP_DMAFREE(isp, xs, handle);
2582 		}
2583 		isp_destroy_handle(isp, handle);
2584 		isp_prt(isp, ISP_LOGERR, "%s: timeout for handle 0x%x", __func__, handle);
2585 		XS_SETERR(xs, CAM_CMD_TIMEOUT);
2586 		isp_done(xs);
2587 	} else {
2588 		if (ohandle != ISP_HANDLE_FREE) {
2589 			isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle 0x%x, recovered during interrupt", __func__, ohandle);
2590 		} else {
2591 			isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle already free", __func__);
2592 		}
2593 	}
2594 }
2595 
2596 static void
2597 isp_make_here(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
2598 {
2599 	union ccb *ccb;
2600 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2601 
2602 	/*
2603 	 * Allocate a CCB, create a wildcard path for this target and schedule a rescan.
2604 	 */
2605 	ccb = xpt_alloc_ccb_nowait();
2606 	if (ccb == NULL) {
2607 		isp_prt(isp, ISP_LOGWARN, "Chan %d unable to alloc CCB for rescan", chan);
2608 		return;
2609 	}
2610 	if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(fc->sim),
2611 	    tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2612 		isp_prt(isp, ISP_LOGWARN, "unable to create path for rescan");
2613 		xpt_free_ccb(ccb);
2614 		return;
2615 	}
2616 	xpt_rescan(ccb);
2617 }
2618 
2619 static void
2620 isp_make_gone(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
2621 {
2622 	struct cam_path *tp;
2623 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2624 
2625 	if (xpt_create_path(&tp, NULL, cam_sim_path(fc->sim), tgt, CAM_LUN_WILDCARD) == CAM_REQ_CMP) {
2626 		xpt_async(AC_LOST_DEVICE, tp, NULL);
2627 		xpt_free_path(tp);
2628 	}
2629 }
2630 
2631 /*
2632  * Gone Device Timer Function- when we have decided that a device has gone
2633  * away, we wait a specific period of time prior to telling the OS it has
2634  * gone away.
2635  *
2636  * This timer function fires once a second and then scans the port database
2637  * for devices that are marked dead but still have a virtual target assigned.
2638  * We decrement a counter for that port database entry, and when it hits zero,
2639  * we tell the OS the device has gone away.
2640  */
2641 static void
2642 isp_gdt(void *arg)
2643 {
2644 	struct isp_fc *fc = arg;
2645 	taskqueue_enqueue(taskqueue_thread, &fc->gtask);
2646 }
2647 
2648 static void
2649 isp_gdt_task(void *arg, int pending)
2650 {
2651 	struct isp_fc *fc = arg;
2652 	ispsoftc_t *isp = fc->isp;
2653 	int chan = fc - isp->isp_osinfo.pc.fc;
2654 	fcportdb_t *lp;
2655 	struct ac_contract ac;
2656 	struct ac_device_changed *adc;
2657 	int dbidx, more_to_do = 0;
2658 
2659 	ISP_LOCK(isp);
2660 	isp_prt(isp, ISP_LOGDEBUG0, "Chan %d GDT timer expired", chan);
2661 	for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
2662 		lp = &FCPARAM(isp, chan)->portdb[dbidx];
2663 
2664 		if (lp->state != FC_PORTDB_STATE_ZOMBIE) {
2665 			continue;
2666 		}
2667 		if (lp->gone_timer != 0) {
2668 			lp->gone_timer -= 1;
2669 			more_to_do++;
2670 			continue;
2671 		}
2672 		isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Gone Device Timeout");
2673 		if (lp->is_target) {
2674 			lp->is_target = 0;
2675 			isp_make_gone(isp, lp, chan, dbidx);
2676 		}
2677 		if (lp->is_initiator) {
2678 			lp->is_initiator = 0;
2679 			ac.contract_number = AC_CONTRACT_DEV_CHG;
2680 			adc = (struct ac_device_changed *) ac.contract_data;
2681 			adc->wwpn = lp->port_wwn;
2682 			adc->port = lp->portid;
2683 			adc->target = dbidx;
2684 			adc->arrived = 0;
2685 			xpt_async(AC_CONTRACT, fc->path, &ac);
2686 		}
2687 		lp->state = FC_PORTDB_STATE_NIL;
2688 	}
2689 	if (fc->ready) {
2690 		if (more_to_do) {
2691 			callout_reset(&fc->gdt, hz, isp_gdt, fc);
2692 		} else {
2693 			callout_deactivate(&fc->gdt);
2694 			isp_prt(isp, ISP_LOG_SANCFG, "Chan %d Stopping Gone Device Timer @ %lu", chan, (unsigned long) time_uptime);
2695 		}
2696 	}
2697 	ISP_UNLOCK(isp);
2698 }
2699 
2700 /*
2701  * When loop goes down we remember the time and freeze CAM command queue.
2702  * During some time period we are trying to reprobe the loop.  But if we
2703  * fail, we tell the OS that devices have gone away and drop the freeze.
2704  *
2705  * We don't clear the devices out of our port database because, when loop
2706  * come back up, we have to do some actual cleanup with the chip at that
2707  * point (implicit PLOGO, e.g., to get the chip's port database state right).
2708  */
2709 static void
2710 isp_loop_changed(ispsoftc_t *isp, int chan)
2711 {
2712 	fcparam *fcp = FCPARAM(isp, chan);
2713 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2714 
2715 	if (fc->loop_down_time)
2716 		return;
2717 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop changed", chan);
2718 	if (fcp->role & ISP_ROLE_INITIATOR)
2719 		isp_freeze_loopdown(isp, chan);
2720 	fc->loop_down_time = time_uptime;
2721 	wakeup(fc);
2722 }
2723 
2724 static void
2725 isp_loop_up(ispsoftc_t *isp, int chan)
2726 {
2727 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2728 
2729 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is up", chan);
2730 	fc->loop_seen_once = 1;
2731 	fc->loop_down_time = 0;
2732 	isp_unfreeze_loopdown(isp, chan);
2733 }
2734 
2735 static void
2736 isp_loop_dead(ispsoftc_t *isp, int chan)
2737 {
2738 	fcparam *fcp = FCPARAM(isp, chan);
2739 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2740 	fcportdb_t *lp;
2741 	struct ac_contract ac;
2742 	struct ac_device_changed *adc;
2743 	int dbidx, i;
2744 
2745 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is dead", chan);
2746 
2747 	/*
2748 	 * Notify to the OS all targets who we now consider have departed.
2749 	 */
2750 	for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
2751 		lp = &fcp->portdb[dbidx];
2752 
2753 		if (lp->state == FC_PORTDB_STATE_NIL)
2754 			continue;
2755 
2756 		for (i = 0; i < isp->isp_maxcmds; i++) {
2757 			struct ccb_scsiio *xs;
2758 
2759 			if (ISP_H2HT(isp->isp_xflist[i].handle) != ISP_HANDLE_INITIATOR) {
2760 				continue;
2761 			}
2762 			if ((xs = isp->isp_xflist[i].cmd) == NULL) {
2763 				continue;
2764                         }
2765 			if (dbidx != XS_TGT(xs)) {
2766 				continue;
2767 			}
2768 			isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx orphaned by loop down timeout",
2769 			    isp->isp_xflist[i].handle, chan, XS_TGT(xs),
2770 			    (uintmax_t)XS_LUN(xs));
2771 
2772 			/*
2773 			 * Just like in isp_watchdog, abort the outstanding
2774 			 * command or immediately free its resources if it is
2775 			 * not active
2776 			 */
2777 			if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
2778 				continue;
2779 			}
2780 
2781 			if (XS_XFRLEN(xs)) {
2782 				ISP_DMAFREE(isp, xs, isp->isp_xflist[i].handle);
2783 			}
2784 			isp_destroy_handle(isp, isp->isp_xflist[i].handle);
2785 			isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx could not be aborted and was destroyed",
2786 			    isp->isp_xflist[i].handle, chan, XS_TGT(xs),
2787 			    (uintmax_t)XS_LUN(xs));
2788 			XS_SETERR(xs, HBA_BUSRESET);
2789 			isp_done(xs);
2790 		}
2791 
2792 		isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Loop Down Timeout");
2793 		if (lp->is_target) {
2794 			lp->is_target = 0;
2795 			isp_make_gone(isp, lp, chan, dbidx);
2796 		}
2797 		if (lp->is_initiator) {
2798 			lp->is_initiator = 0;
2799 			ac.contract_number = AC_CONTRACT_DEV_CHG;
2800 			adc = (struct ac_device_changed *) ac.contract_data;
2801 			adc->wwpn = lp->port_wwn;
2802 			adc->port = lp->portid;
2803 			adc->target = dbidx;
2804 			adc->arrived = 0;
2805 			xpt_async(AC_CONTRACT, fc->path, &ac);
2806 		}
2807 	}
2808 
2809 	isp_unfreeze_loopdown(isp, chan);
2810 	fc->loop_down_time = 0;
2811 }
2812 
2813 static void
2814 isp_kthread(void *arg)
2815 {
2816 	struct isp_fc *fc = arg;
2817 	ispsoftc_t *isp = fc->isp;
2818 	int chan = fc - isp->isp_osinfo.pc.fc;
2819 	int slp = 0, d;
2820 	int lb, lim;
2821 
2822 	ISP_LOCK(isp);
2823 	while (isp->isp_osinfo.is_exiting == 0) {
2824 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2825 		    "Chan %d Checking FC state", chan);
2826 		lb = isp_fc_runstate(isp, chan, 250000);
2827 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2828 		    "Chan %d FC got to %s state", chan,
2829 		    isp_fc_loop_statename(lb));
2830 
2831 		/*
2832 		 * Our action is different based upon whether we're supporting
2833 		 * Initiator mode or not. If we are, we might freeze the simq
2834 		 * when loop is down and set all sorts of different delays to
2835 		 * check again.
2836 		 *
2837 		 * If not, we simply just wait for loop to come up.
2838 		 */
2839 		if (lb == LOOP_READY || lb < 0) {
2840 			slp = 0;
2841 		} else {
2842 			/*
2843 			 * If we've never seen loop up and we've waited longer
2844 			 * than quickboot time, or we've seen loop up but we've
2845 			 * waited longer than loop_down_limit, give up and go
2846 			 * to sleep until loop comes up.
2847 			 */
2848 			if (fc->loop_seen_once == 0)
2849 				lim = isp_quickboot_time;
2850 			else
2851 				lim = fc->loop_down_limit;
2852 			d = time_uptime - fc->loop_down_time;
2853 			if (d >= lim)
2854 				slp = 0;
2855 			else if (d < 10)
2856 				slp = 1;
2857 			else if (d < 30)
2858 				slp = 5;
2859 			else if (d < 60)
2860 				slp = 10;
2861 			else if (d < 120)
2862 				slp = 20;
2863 			else
2864 				slp = 30;
2865 		}
2866 
2867 		if (slp == 0) {
2868 			if (lb == LOOP_READY)
2869 				isp_loop_up(isp, chan);
2870 			else
2871 				isp_loop_dead(isp, chan);
2872 		}
2873 
2874 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2875 		    "Chan %d sleep for %d seconds", chan, slp);
2876 		msleep(fc, &isp->isp_lock, PRIBIO, "ispf", slp * hz);
2877 	}
2878 	fc->num_threads -= 1;
2879 	ISP_UNLOCK(isp);
2880 	kthread_exit();
2881 }
2882 
2883 #ifdef	ISP_TARGET_MODE
2884 static void
2885 isp_abort_atio(ispsoftc_t *isp, union ccb *ccb)
2886 {
2887 	atio_private_data_t *atp;
2888 	union ccb *accb = ccb->cab.abort_ccb;
2889 	struct ccb_hdr *sccb;
2890 	tstate_t *tptr;
2891 
2892 	tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
2893 	if (tptr != NULL) {
2894 		/* Search for the ATIO among queueued. */
2895 		SLIST_FOREACH(sccb, &tptr->atios, sim_links.sle) {
2896 			if (sccb != &accb->ccb_h)
2897 				continue;
2898 			SLIST_REMOVE(&tptr->atios, sccb, ccb_hdr, sim_links.sle);
2899 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
2900 			    "Abort FREE ATIO\n");
2901 			accb->ccb_h.status = CAM_REQ_ABORTED;
2902 			xpt_done(accb);
2903 			ccb->ccb_h.status = CAM_REQ_CMP;
2904 			return;
2905 		}
2906 	}
2907 
2908 	/* Search for the ATIO among running. */
2909 	atp = isp_find_atpd(isp, XS_CHANNEL(accb), accb->atio.tag_id);
2910 	if (atp != NULL) {
2911 		/* Send TERMINATE to firmware. */
2912 		if (!atp->dead && IS_24XX(isp)) {
2913 			uint8_t storage[QENTRY_LEN];
2914 			ct7_entry_t *cto = (ct7_entry_t *) storage;
2915 
2916 			ISP_MEMZERO(cto, sizeof (ct7_entry_t));
2917 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2918 			cto->ct_header.rqs_entry_count = 1;
2919 			cto->ct_nphdl = atp->nphdl;
2920 			cto->ct_rxid = atp->tag;
2921 			cto->ct_iid_lo = atp->sid;
2922 			cto->ct_iid_hi = atp->sid >> 16;
2923 			cto->ct_oxid = atp->oxid;
2924 			cto->ct_vpidx = XS_CHANNEL(accb);
2925 			cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
2926 			isp_target_put_entry(isp, cto);
2927 		}
2928 		isp_put_atpd(isp, XS_CHANNEL(accb), atp);
2929 		ccb->ccb_h.status = CAM_REQ_CMP;
2930 	} else {
2931 		ccb->ccb_h.status = CAM_UA_ABORT;
2932 	}
2933 }
2934 
2935 static void
2936 isp_abort_inot(ispsoftc_t *isp, union ccb *ccb)
2937 {
2938 	inot_private_data_t *ntp;
2939 	union ccb *accb = ccb->cab.abort_ccb;
2940 	struct ccb_hdr *sccb;
2941 	tstate_t *tptr;
2942 
2943 	tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
2944 	if (tptr != NULL) {
2945 		/* Search for the INOT among queueued. */
2946 		SLIST_FOREACH(sccb, &tptr->inots, sim_links.sle) {
2947 			if (sccb != &accb->ccb_h)
2948 				continue;
2949 			SLIST_REMOVE(&tptr->inots, sccb, ccb_hdr, sim_links.sle);
2950 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
2951 			    "Abort FREE INOT\n");
2952 			accb->ccb_h.status = CAM_REQ_ABORTED;
2953 			xpt_done(accb);
2954 			ccb->ccb_h.status = CAM_REQ_CMP;
2955 			return;
2956 		}
2957 	}
2958 
2959 	/* Search for the INOT among running. */
2960 	ntp = isp_find_ntpd(isp, XS_CHANNEL(accb), accb->cin1.tag_id, accb->cin1.seq_id);
2961 	if (ntp != NULL) {
2962 		if (ntp->nt.nt_need_ack) {
2963 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK,
2964 			    ntp->nt.nt_lreserved);
2965 		}
2966 		isp_put_ntpd(isp, XS_CHANNEL(accb), ntp);
2967 		ccb->ccb_h.status = CAM_REQ_CMP;
2968 	} else {
2969 		ccb->ccb_h.status = CAM_UA_ABORT;
2970 		return;
2971 	}
2972 }
2973 #endif
2974 
2975 static void
2976 isp_action(struct cam_sim *sim, union ccb *ccb)
2977 {
2978 	int bus, tgt, error;
2979 	ispsoftc_t *isp;
2980 	struct ccb_trans_settings *cts;
2981 	sbintime_t ts;
2982 
2983 	CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
2984 
2985 	isp = (ispsoftc_t *)cam_sim_softc(sim);
2986 	ISP_ASSERT_LOCKED(isp);
2987 	bus = cam_sim_bus(sim);
2988 	isp_prt(isp, ISP_LOGDEBUG2, "isp_action code %x", ccb->ccb_h.func_code);
2989 	ISP_PCMD(ccb) = NULL;
2990 
2991 	switch (ccb->ccb_h.func_code) {
2992 	case XPT_SCSI_IO:	/* Execute the requested I/O operation */
2993 		/*
2994 		 * Do a couple of preliminary checks...
2995 		 */
2996 		if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2997 			if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
2998 				ccb->ccb_h.status = CAM_REQ_INVALID;
2999 				isp_done((struct ccb_scsiio *) ccb);
3000 				break;
3001 			}
3002 		}
3003 		ccb->csio.req_map = NULL;
3004 #ifdef	DIAGNOSTIC
3005 		if (ccb->ccb_h.target_id >= ISP_MAX_TARGETS(isp)) {
3006 			xpt_print(ccb->ccb_h.path, "invalid target\n");
3007 			ccb->ccb_h.status = CAM_PATH_INVALID;
3008 		} else if (ISP_MAX_LUNS(isp) > 0 &&
3009 		    ccb->ccb_h.target_lun >= ISP_MAX_LUNS(isp)) {
3010 			xpt_print(ccb->ccb_h.path, "invalid lun\n");
3011 			ccb->ccb_h.status = CAM_PATH_INVALID;
3012 		}
3013 		if (ccb->ccb_h.status == CAM_PATH_INVALID) {
3014 			xpt_done(ccb);
3015 			break;
3016 		}
3017 #endif
3018 		ccb->csio.scsi_status = SCSI_STATUS_OK;
3019 		if (isp_get_pcmd(isp, ccb)) {
3020 			isp_prt(isp, ISP_LOGWARN, "out of PCMDs");
3021 			cam_freeze_devq(ccb->ccb_h.path);
3022 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 250, 0);
3023 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3024 			xpt_done(ccb);
3025 			break;
3026 		}
3027 		error = isp_start((XS_T *) ccb);
3028 		switch (error) {
3029 		case CMD_QUEUED:
3030 			ccb->ccb_h.status |= CAM_SIM_QUEUED;
3031 			if (ccb->ccb_h.timeout == CAM_TIME_INFINITY)
3032 				break;
3033 			/* Give firmware extra 10s to handle timeout. */
3034 			ts = SBT_1MS * ccb->ccb_h.timeout + 10 * SBT_1S;
3035 			callout_reset_sbt(&PISP_PCMD(ccb)->wdog, ts, 0,
3036 			    isp_watchdog, ccb, 0);
3037 			break;
3038 		case CMD_RQLATER:
3039 			isp_prt(isp, ISP_LOGDEBUG0, "%d.%jx retry later",
3040 			    XS_TGT(ccb), (uintmax_t)XS_LUN(ccb));
3041 			cam_freeze_devq(ccb->ccb_h.path);
3042 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
3043 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3044 			isp_free_pcmd(isp, ccb);
3045 			xpt_done(ccb);
3046 			break;
3047 		case CMD_EAGAIN:
3048 			isp_free_pcmd(isp, ccb);
3049 			cam_freeze_devq(ccb->ccb_h.path);
3050 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 100, 0);
3051 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3052 			xpt_done(ccb);
3053 			break;
3054 		case CMD_COMPLETE:
3055 			isp_done((struct ccb_scsiio *) ccb);
3056 			break;
3057 		default:
3058 			isp_prt(isp, ISP_LOGERR, "What's this? 0x%x at %d in file %s", error, __LINE__, __FILE__);
3059 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3060 			isp_free_pcmd(isp, ccb);
3061 			xpt_done(ccb);
3062 		}
3063 		break;
3064 
3065 #ifdef	ISP_TARGET_MODE
3066 	case XPT_EN_LUN:		/* Enable/Disable LUN as a target */
3067 		if (ccb->cel.enable) {
3068 			isp_enable_lun(isp, ccb);
3069 		} else {
3070 			isp_disable_lun(isp, ccb);
3071 		}
3072 		break;
3073 	case XPT_IMMEDIATE_NOTIFY:	/* Add Immediate Notify Resource */
3074 	case XPT_ACCEPT_TARGET_IO:	/* Add Accept Target IO Resource */
3075 	{
3076 		tstate_t *tptr = get_lun_statep(isp, XS_CHANNEL(ccb), ccb->ccb_h.target_lun);
3077 		if (tptr == NULL) {
3078 			const char *str;
3079 
3080 			if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
3081 				str = "XPT_IMMEDIATE_NOTIFY";
3082 			else
3083 				str = "XPT_ACCEPT_TARGET_IO";
3084 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path,
3085 			    "%s: no state pointer found for %s\n",
3086 			    __func__, str);
3087 			ccb->ccb_h.status = CAM_DEV_NOT_THERE;
3088 			xpt_done(ccb);
3089 			break;
3090 		}
3091 		ccb->ccb_h.spriv_field0 = 0;
3092 		ccb->ccb_h.spriv_ptr1 = isp;
3093 
3094 		if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3095 			ccb->atio.tag_id = 0;
3096 			SLIST_INSERT_HEAD(&tptr->atios, &ccb->ccb_h, sim_links.sle);
3097 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
3098 			    "Put FREE ATIO\n");
3099 		} else if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
3100 			ccb->cin1.seq_id = ccb->cin1.tag_id = 0;
3101 			SLIST_INSERT_HEAD(&tptr->inots, &ccb->ccb_h, sim_links.sle);
3102 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
3103 			    "Put FREE INOT\n");
3104 		}
3105 		ccb->ccb_h.status = CAM_REQ_INPROG;
3106 		break;
3107 	}
3108 	case XPT_NOTIFY_ACKNOWLEDGE:		/* notify ack */
3109 	{
3110 		inot_private_data_t *ntp;
3111 
3112 		/*
3113 		 * XXX: Because we cannot guarantee that the path information in the notify acknowledge ccb
3114 		 * XXX: matches that for the immediate notify, we have to *search* for the notify structure
3115 		 */
3116 		/*
3117 		 * All the relevant path information is in the associated immediate notify
3118 		 */
3119 		ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "%s: [0x%x] NOTIFY ACKNOWLEDGE for 0x%x seen\n", __func__, ccb->cna2.tag_id, ccb->cna2.seq_id);
3120 		ntp = isp_find_ntpd(isp, XS_CHANNEL(ccb), ccb->cna2.tag_id, ccb->cna2.seq_id);
3121 		if (ntp == NULL) {
3122 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "%s: [0x%x] XPT_NOTIFY_ACKNOWLEDGE of 0x%x cannot find ntp private data\n", __func__,
3123 			     ccb->cna2.tag_id, ccb->cna2.seq_id);
3124 			ccb->ccb_h.status = CAM_DEV_NOT_THERE;
3125 			xpt_done(ccb);
3126 			break;
3127 		}
3128 		if (isp_handle_platform_target_notify_ack(isp, &ntp->nt,
3129 		    (ccb->ccb_h.flags & CAM_SEND_STATUS) ? ccb->cna2.arg : 0)) {
3130 			cam_freeze_devq(ccb->ccb_h.path);
3131 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
3132 			ccb->ccb_h.status &= ~CAM_STATUS_MASK;
3133 			ccb->ccb_h.status |= CAM_REQUEUE_REQ;
3134 			break;
3135 		}
3136 		isp_put_ntpd(isp, XS_CHANNEL(ccb), ntp);
3137 		ccb->ccb_h.status = CAM_REQ_CMP;
3138 		ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "%s: [0x%x] calling xpt_done for tag 0x%x\n", __func__, ccb->cna2.tag_id, ccb->cna2.seq_id);
3139 		xpt_done(ccb);
3140 		break;
3141 	}
3142 	case XPT_CONT_TARGET_IO:
3143 		isp_target_start_ctio(isp, ccb, FROM_CAM);
3144 		break;
3145 #endif
3146 	case XPT_RESET_DEV:		/* BDR the specified SCSI device */
3147 		tgt = ccb->ccb_h.target_id;
3148 		tgt |= (bus << 16);
3149 
3150 		error = isp_control(isp, ISPCTL_RESET_DEV, bus, tgt);
3151 		if (error) {
3152 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3153 		} else {
3154 			/*
3155 			 * If we have a FC device, reset the Command
3156 			 * Reference Number, because the target will expect
3157 			 * that we re-start the CRN at 1 after a reset.
3158 			 */
3159 			if (IS_FC(isp))
3160 				isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3161 
3162 			ccb->ccb_h.status = CAM_REQ_CMP;
3163 		}
3164 		xpt_done(ccb);
3165 		break;
3166 	case XPT_ABORT:			/* Abort the specified CCB */
3167 	{
3168 		union ccb *accb = ccb->cab.abort_ccb;
3169 		switch (accb->ccb_h.func_code) {
3170 #ifdef	ISP_TARGET_MODE
3171 		case XPT_ACCEPT_TARGET_IO:
3172 			isp_abort_atio(isp, ccb);
3173 			break;
3174 		case XPT_IMMEDIATE_NOTIFY:
3175 			isp_abort_inot(isp, ccb);
3176 			break;
3177 #endif
3178 		case XPT_SCSI_IO:
3179 			error = isp_control(isp, ISPCTL_ABORT_CMD, accb);
3180 			if (error) {
3181 				ccb->ccb_h.status = CAM_UA_ABORT;
3182 			} else {
3183 				ccb->ccb_h.status = CAM_REQ_CMP;
3184 			}
3185 			break;
3186 		default:
3187 			ccb->ccb_h.status = CAM_REQ_INVALID;
3188 			break;
3189 		}
3190 		/*
3191 		 * This is not a queued CCB, so the caller expects it to be
3192 		 * complete when control is returned.
3193 		 */
3194 		break;
3195 	}
3196 #define	IS_CURRENT_SETTINGS(c)	(c->type == CTS_TYPE_CURRENT_SETTINGS)
3197 	case XPT_SET_TRAN_SETTINGS:	/* Nexus Settings */
3198 		cts = &ccb->cts;
3199 		if (!IS_CURRENT_SETTINGS(cts)) {
3200 			ccb->ccb_h.status = CAM_REQ_INVALID;
3201 			xpt_done(ccb);
3202 			break;
3203 		}
3204 		tgt = cts->ccb_h.target_id;
3205 		if (IS_SCSI(isp)) {
3206 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3207 			struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3208 			sdparam *sdp = SDPARAM(isp, bus);
3209 			uint16_t *dptr;
3210 
3211 			if (spi->valid == 0 && scsi->valid == 0) {
3212 				ccb->ccb_h.status = CAM_REQ_CMP;
3213 				xpt_done(ccb);
3214 				break;
3215 			}
3216 
3217 			/*
3218 			 * We always update (internally) from goal_flags
3219 			 * so any request to change settings just gets
3220 			 * vectored to that location.
3221 			 */
3222 			dptr = &sdp->isp_devparam[tgt].goal_flags;
3223 
3224 			if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3225 				if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
3226 					*dptr |= DPARM_DISC;
3227 				else
3228 					*dptr &= ~DPARM_DISC;
3229 			}
3230 
3231 			if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3232 				if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
3233 					*dptr |= DPARM_TQING;
3234 				else
3235 					*dptr &= ~DPARM_TQING;
3236 			}
3237 
3238 			if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3239 				if (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
3240 					*dptr |= DPARM_WIDE;
3241 				else
3242 					*dptr &= ~DPARM_WIDE;
3243 			}
3244 
3245 			/*
3246 			 * XXX: FIX ME
3247 			 */
3248 			if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) && (spi->valid & CTS_SPI_VALID_SYNC_RATE) && (spi->sync_period && spi->sync_offset)) {
3249 				*dptr |= DPARM_SYNC;
3250 				/*
3251 				 * XXX: CHECK FOR LEGALITY
3252 				 */
3253 				sdp->isp_devparam[tgt].goal_period = spi->sync_period;
3254 				sdp->isp_devparam[tgt].goal_offset = spi->sync_offset;
3255 			} else {
3256 				*dptr &= ~DPARM_SYNC;
3257 			}
3258 			isp_prt(isp, ISP_LOGDEBUG0, "SET (%d.%d.%jx) to flags %x off %x per %x", bus, tgt, (uintmax_t)cts->ccb_h.target_lun, sdp->isp_devparam[tgt].goal_flags,
3259 			    sdp->isp_devparam[tgt].goal_offset, sdp->isp_devparam[tgt].goal_period);
3260 			sdp->isp_devparam[tgt].dev_update = 1;
3261 			sdp->update = 1;
3262 		}
3263 		ccb->ccb_h.status = CAM_REQ_CMP;
3264 		xpt_done(ccb);
3265 		break;
3266 	case XPT_GET_TRAN_SETTINGS:
3267 		cts = &ccb->cts;
3268 		tgt = cts->ccb_h.target_id;
3269 		if (IS_FC(isp)) {
3270 			fcparam *fcp = FCPARAM(isp, bus);
3271 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3272 			struct ccb_trans_settings_fc *fc = &cts->xport_specific.fc;
3273 
3274 			cts->protocol = PROTO_SCSI;
3275 			cts->protocol_version = SCSI_REV_2;
3276 			cts->transport = XPORT_FC;
3277 			cts->transport_version = 0;
3278 
3279 			scsi->valid = CTS_SCSI_VALID_TQ;
3280 			scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3281 			fc->valid = CTS_FC_VALID_SPEED;
3282 			fc->bitrate = 100000;
3283 			fc->bitrate *= fcp->isp_gbspeed;
3284 			if (tgt < MAX_FC_TARG) {
3285 				fcportdb_t *lp = &fcp->portdb[tgt];
3286 				fc->wwnn = lp->node_wwn;
3287 				fc->wwpn = lp->port_wwn;
3288 				fc->port = lp->portid;
3289 				fc->valid |= CTS_FC_VALID_WWNN | CTS_FC_VALID_WWPN | CTS_FC_VALID_PORT;
3290 			}
3291 		} else {
3292 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3293 			struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3294 			sdparam *sdp = SDPARAM(isp, bus);
3295 			uint16_t dval, pval, oval;
3296 
3297 			if (IS_CURRENT_SETTINGS(cts)) {
3298 				sdp->isp_devparam[tgt].dev_refresh = 1;
3299 				sdp->update = 1;
3300 				(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
3301 				dval = sdp->isp_devparam[tgt].actv_flags;
3302 				oval = sdp->isp_devparam[tgt].actv_offset;
3303 				pval = sdp->isp_devparam[tgt].actv_period;
3304 			} else {
3305 				dval = sdp->isp_devparam[tgt].nvrm_flags;
3306 				oval = sdp->isp_devparam[tgt].nvrm_offset;
3307 				pval = sdp->isp_devparam[tgt].nvrm_period;
3308 			}
3309 
3310 			cts->protocol = PROTO_SCSI;
3311 			cts->protocol_version = SCSI_REV_2;
3312 			cts->transport = XPORT_SPI;
3313 			cts->transport_version = 2;
3314 
3315 			spi->valid = 0;
3316 			scsi->valid = 0;
3317 			spi->flags = 0;
3318 			scsi->flags = 0;
3319 			if (dval & DPARM_DISC) {
3320 				spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3321 			}
3322 			if ((dval & DPARM_SYNC) && oval && pval) {
3323 				spi->sync_offset = oval;
3324 				spi->sync_period = pval;
3325 			} else {
3326 				spi->sync_offset = 0;
3327 				spi->sync_period = 0;
3328 			}
3329 			spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3330 			spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3331 			spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3332 			if (dval & DPARM_WIDE) {
3333 				spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3334 			} else {
3335 				spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3336 			}
3337 			if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3338 				scsi->valid = CTS_SCSI_VALID_TQ;
3339 				if (dval & DPARM_TQING) {
3340 					scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3341 				}
3342 				spi->valid |= CTS_SPI_VALID_DISC;
3343 			}
3344 			isp_prt(isp, ISP_LOGDEBUG0, "GET %s (%d.%d.%jx) to flags %x off %x per %x", IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM",
3345 			    bus, tgt, (uintmax_t)cts->ccb_h.target_lun, dval, oval, pval);
3346 		}
3347 		ccb->ccb_h.status = CAM_REQ_CMP;
3348 		xpt_done(ccb);
3349 		break;
3350 
3351 	case XPT_CALC_GEOMETRY:
3352 		cam_calc_geometry(&ccb->ccg, 1);
3353 		xpt_done(ccb);
3354 		break;
3355 
3356 	case XPT_RESET_BUS:		/* Reset the specified bus */
3357 		error = isp_control(isp, ISPCTL_RESET_BUS, bus);
3358 		if (error) {
3359 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3360 			xpt_done(ccb);
3361 			break;
3362 		}
3363 		if (bootverbose) {
3364 			xpt_print(ccb->ccb_h.path, "reset bus on channel %d\n", bus);
3365 		}
3366 		if (IS_FC(isp)) {
3367 			xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, 0);
3368 		} else {
3369 			xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, 0);
3370 		}
3371 		ccb->ccb_h.status = CAM_REQ_CMP;
3372 		xpt_done(ccb);
3373 		break;
3374 
3375 	case XPT_TERM_IO:		/* Terminate the I/O process */
3376 		ccb->ccb_h.status = CAM_REQ_INVALID;
3377 		xpt_done(ccb);
3378 		break;
3379 
3380 	case XPT_SET_SIM_KNOB:		/* Set SIM knobs */
3381 	{
3382 		struct ccb_sim_knob *kp = &ccb->knob;
3383 		fcparam *fcp;
3384 
3385 		if (!IS_FC(isp)) {
3386 			ccb->ccb_h.status = CAM_REQ_INVALID;
3387 			xpt_done(ccb);
3388 			break;
3389 		}
3390 
3391 		fcp = FCPARAM(isp, bus);
3392 
3393 		if (kp->xport_specific.fc.valid & KNOB_VALID_ADDRESS) {
3394 			fcp->isp_wwnn = ISP_FC_PC(isp, bus)->def_wwnn = kp->xport_specific.fc.wwnn;
3395 			fcp->isp_wwpn = ISP_FC_PC(isp, bus)->def_wwpn = kp->xport_specific.fc.wwpn;
3396 			isp_prt(isp, ISP_LOGALL, "Setting Channel %d wwns to 0x%jx 0x%jx", bus, fcp->isp_wwnn, fcp->isp_wwpn);
3397 		}
3398 		ccb->ccb_h.status = CAM_REQ_CMP;
3399 		if (kp->xport_specific.fc.valid & KNOB_VALID_ROLE) {
3400 			int rchange = 0;
3401 			int newrole = 0;
3402 
3403 			switch (kp->xport_specific.fc.role) {
3404 			case KNOB_ROLE_NONE:
3405 				if (fcp->role != ISP_ROLE_NONE) {
3406 					rchange = 1;
3407 					newrole = ISP_ROLE_NONE;
3408 				}
3409 				break;
3410 			case KNOB_ROLE_TARGET:
3411 				if (fcp->role != ISP_ROLE_TARGET) {
3412 					rchange = 1;
3413 					newrole = ISP_ROLE_TARGET;
3414 				}
3415 				break;
3416 			case KNOB_ROLE_INITIATOR:
3417 				if (fcp->role != ISP_ROLE_INITIATOR) {
3418 					rchange = 1;
3419 					newrole = ISP_ROLE_INITIATOR;
3420 				}
3421 				break;
3422 			case KNOB_ROLE_BOTH:
3423 				if (fcp->role != ISP_ROLE_BOTH) {
3424 					rchange = 1;
3425 					newrole = ISP_ROLE_BOTH;
3426 				}
3427 				break;
3428 			}
3429 			if (rchange) {
3430 				ISP_PATH_PRT(isp, ISP_LOGCONFIG, ccb->ccb_h.path, "changing role on from %d to %d\n", fcp->role, newrole);
3431 				if (isp_control(isp, ISPCTL_CHANGE_ROLE,
3432 				    bus, newrole) != 0) {
3433 					ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3434 					xpt_done(ccb);
3435 					break;
3436 				}
3437 			}
3438 		}
3439 		xpt_done(ccb);
3440 		break;
3441 	}
3442 	case XPT_GET_SIM_KNOB_OLD:	/* Get SIM knobs -- compat value */
3443 	case XPT_GET_SIM_KNOB:		/* Get SIM knobs */
3444 	{
3445 		struct ccb_sim_knob *kp = &ccb->knob;
3446 
3447 		if (IS_FC(isp)) {
3448 			fcparam *fcp;
3449 
3450 			fcp = FCPARAM(isp, bus);
3451 
3452 			kp->xport_specific.fc.wwnn = fcp->isp_wwnn;
3453 			kp->xport_specific.fc.wwpn = fcp->isp_wwpn;
3454 			switch (fcp->role) {
3455 			case ISP_ROLE_NONE:
3456 				kp->xport_specific.fc.role = KNOB_ROLE_NONE;
3457 				break;
3458 			case ISP_ROLE_TARGET:
3459 				kp->xport_specific.fc.role = KNOB_ROLE_TARGET;
3460 				break;
3461 			case ISP_ROLE_INITIATOR:
3462 				kp->xport_specific.fc.role = KNOB_ROLE_INITIATOR;
3463 				break;
3464 			case ISP_ROLE_BOTH:
3465 				kp->xport_specific.fc.role = KNOB_ROLE_BOTH;
3466 				break;
3467 			}
3468 			kp->xport_specific.fc.valid = KNOB_VALID_ADDRESS | KNOB_VALID_ROLE;
3469 			ccb->ccb_h.status = CAM_REQ_CMP;
3470 		} else {
3471 			ccb->ccb_h.status = CAM_REQ_INVALID;
3472 		}
3473 		xpt_done(ccb);
3474 		break;
3475 	}
3476 	case XPT_PATH_INQ:		/* Path routing inquiry */
3477 	{
3478 		struct ccb_pathinq *cpi = &ccb->cpi;
3479 
3480 		cpi->version_num = 1;
3481 #ifdef	ISP_TARGET_MODE
3482 		if (IS_FC(isp) && ISP_CAP_TMODE(isp) && ISP_CAP_SCCFW(isp))
3483 			cpi->target_sprt = PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3484 		else
3485 #endif
3486 			cpi->target_sprt = 0;
3487 		cpi->hba_eng_cnt = 0;
3488 		cpi->max_target = ISP_MAX_TARGETS(isp) - 1;
3489 		cpi->max_lun = ISP_MAX_LUNS(isp) == 0 ?
3490 		    255 : ISP_MAX_LUNS(isp) - 1;
3491 		cpi->bus_id = cam_sim_bus(sim);
3492 		if (sizeof (bus_size_t) > 4)
3493 			cpi->maxio = (ISP_NSEG64_MAX - 1) * PAGE_SIZE;
3494 		else
3495 			cpi->maxio = (ISP_NSEG_MAX - 1) * PAGE_SIZE;
3496 
3497 		if (IS_FC(isp)) {
3498 			fcparam *fcp = FCPARAM(isp, bus);
3499 
3500 			cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
3501 			cpi->hba_misc |= PIM_EXTLUNS | PIM_NOSCAN;
3502 
3503 			/*
3504 			 * Because our loop ID can shift from time to time,
3505 			 * make our initiator ID out of range of our bus.
3506 			 */
3507 			cpi->initiator_id = cpi->max_target + 1;
3508 
3509 			/*
3510 			 * Set base transfer capabilities for Fibre Channel, for this HBA.
3511 			 */
3512 			if (IS_25XX(isp)) {
3513 				cpi->base_transfer_speed = 8000000;
3514 			} else if (IS_24XX(isp)) {
3515 				cpi->base_transfer_speed = 4000000;
3516 			} else if (IS_23XX(isp)) {
3517 				cpi->base_transfer_speed = 2000000;
3518 			} else {
3519 				cpi->base_transfer_speed = 1000000;
3520 			}
3521 			cpi->hba_inquiry = PI_TAG_ABLE;
3522 			cpi->transport = XPORT_FC;
3523 			cpi->transport_version = 0;
3524 			cpi->xport_specific.fc.wwnn = fcp->isp_wwnn;
3525 			cpi->xport_specific.fc.wwpn = fcp->isp_wwpn;
3526 			cpi->xport_specific.fc.port = fcp->isp_portid;
3527 			cpi->xport_specific.fc.bitrate = fcp->isp_gbspeed * 1000;
3528 		} else {
3529 			sdparam *sdp = SDPARAM(isp, bus);
3530 			cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3531 			cpi->hba_misc = PIM_UNMAPPED;
3532 			cpi->initiator_id = sdp->isp_initiator_id;
3533 			cpi->base_transfer_speed = 3300;
3534 			cpi->transport = XPORT_SPI;
3535 			cpi->transport_version = 2;
3536 		}
3537 		cpi->protocol = PROTO_SCSI;
3538 		cpi->protocol_version = SCSI_REV_2;
3539 		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3540 		strlcpy(cpi->hba_vid, "Qlogic", HBA_IDLEN);
3541 		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3542 		cpi->unit_number = cam_sim_unit(sim);
3543 		cpi->ccb_h.status = CAM_REQ_CMP;
3544 		xpt_done(ccb);
3545 		break;
3546 	}
3547 	default:
3548 		ccb->ccb_h.status = CAM_REQ_INVALID;
3549 		xpt_done(ccb);
3550 		break;
3551 	}
3552 }
3553 
3554 void
3555 isp_done(XS_T *sccb)
3556 {
3557 	ispsoftc_t *isp = XS_ISP(sccb);
3558 	uint32_t status;
3559 
3560 	if (XS_NOERR(sccb))
3561 		XS_SETERR(sccb, CAM_REQ_CMP);
3562 
3563 	if ((sccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && (sccb->scsi_status != SCSI_STATUS_OK)) {
3564 		sccb->ccb_h.status &= ~CAM_STATUS_MASK;
3565 		if ((sccb->scsi_status == SCSI_STATUS_CHECK_COND) && (sccb->ccb_h.status & CAM_AUTOSNS_VALID) == 0) {
3566 			sccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
3567 		} else {
3568 			sccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3569 		}
3570 	}
3571 
3572 	sccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3573 	status = sccb->ccb_h.status & CAM_STATUS_MASK;
3574 	if (status != CAM_REQ_CMP &&
3575 	    (sccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
3576 		sccb->ccb_h.status |= CAM_DEV_QFRZN;
3577 		xpt_freeze_devq(sccb->ccb_h.path, 1);
3578 	}
3579 
3580 	if (ISP_PCMD(sccb)) {
3581 		if (callout_active(&PISP_PCMD(sccb)->wdog))
3582 			callout_stop(&PISP_PCMD(sccb)->wdog);
3583 		isp_free_pcmd(isp, (union ccb *) sccb);
3584 	}
3585 	xpt_done((union ccb *) sccb);
3586 }
3587 
3588 void
3589 isp_async(ispsoftc_t *isp, ispasync_t cmd, ...)
3590 {
3591 	int bus;
3592 	static const char prom[] = "Chan %d [%d] WWPN 0x%16jx PortID 0x%06x handle 0x%x %s %s";
3593 	char buf[64];
3594 	char *msg = NULL;
3595 	target_id_t tgt = 0;
3596 	fcportdb_t *lp;
3597 	struct isp_fc *fc;
3598 	struct cam_path *tmppath;
3599 	struct ac_contract ac;
3600 	struct ac_device_changed *adc;
3601 	va_list ap;
3602 
3603 	switch (cmd) {
3604 	case ISPASYNC_NEW_TGT_PARAMS:
3605 	{
3606 		struct ccb_trans_settings_scsi *scsi;
3607 		struct ccb_trans_settings_spi *spi;
3608 		int flags, tgt;
3609 		sdparam *sdp;
3610 		struct ccb_trans_settings cts;
3611 
3612 		memset(&cts, 0, sizeof (struct ccb_trans_settings));
3613 
3614 		va_start(ap, cmd);
3615 		bus = va_arg(ap, int);
3616 		tgt = va_arg(ap, int);
3617 		va_end(ap);
3618 		sdp = SDPARAM(isp, bus);
3619 
3620 		if (xpt_create_path(&tmppath, NULL, cam_sim_path(ISP_SPI_PC(isp, bus)->sim), tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
3621 			isp_prt(isp, ISP_LOGWARN, "isp_async cannot make temp path for %d.%d", tgt, bus);
3622 			break;
3623 		}
3624 		flags = sdp->isp_devparam[tgt].actv_flags;
3625 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
3626 		cts.protocol = PROTO_SCSI;
3627 		cts.transport = XPORT_SPI;
3628 
3629 		scsi = &cts.proto_specific.scsi;
3630 		spi = &cts.xport_specific.spi;
3631 
3632 		if (flags & DPARM_TQING) {
3633 			scsi->valid |= CTS_SCSI_VALID_TQ;
3634 			scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3635 		}
3636 
3637 		if (flags & DPARM_DISC) {
3638 			spi->valid |= CTS_SPI_VALID_DISC;
3639 			spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3640 		}
3641 		spi->flags |= CTS_SPI_VALID_BUS_WIDTH;
3642 		if (flags & DPARM_WIDE) {
3643 			spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3644 		} else {
3645 			spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3646 		}
3647 		if (flags & DPARM_SYNC) {
3648 			spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3649 			spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3650 			spi->sync_period = sdp->isp_devparam[tgt].actv_period;
3651 			spi->sync_offset = sdp->isp_devparam[tgt].actv_offset;
3652 		}
3653 		isp_prt(isp, ISP_LOGDEBUG2, "NEW_TGT_PARAMS bus %d tgt %d period %x offset %x flags %x", bus, tgt, sdp->isp_devparam[tgt].actv_period, sdp->isp_devparam[tgt].actv_offset, flags);
3654 		xpt_setup_ccb(&cts.ccb_h, tmppath, 1);
3655 		xpt_async(AC_TRANSFER_NEG, tmppath, &cts);
3656 		xpt_free_path(tmppath);
3657 		break;
3658 	}
3659 	case ISPASYNC_BUS_RESET:
3660 	{
3661 		va_start(ap, cmd);
3662 		bus = va_arg(ap, int);
3663 		va_end(ap);
3664 		isp_prt(isp, ISP_LOGINFO, "SCSI bus reset on bus %d detected", bus);
3665 		if (IS_FC(isp)) {
3666 			xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, NULL);
3667 		} else {
3668 			xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, NULL);
3669 		}
3670 		break;
3671 	}
3672 	case ISPASYNC_LOOP_RESET:
3673 	{
3674 		uint16_t lipp;
3675 		fcparam *fcp;
3676 		va_start(ap, cmd);
3677 		bus = va_arg(ap, int);
3678 		va_end(ap);
3679 
3680 		lipp = ISP_READ(isp, OUTMAILBOX1);
3681 		fcp = FCPARAM(isp, bus);
3682 
3683 		isp_prt(isp, ISP_LOGINFO, "Chan %d LOOP Reset, LIP primitive %x", bus, lipp);
3684 		/*
3685 		 * Per FCP-4, a Reset LIP should result in a CRN reset. Other
3686 		 * LIPs and loop up/down events should never reset the CRN. For
3687 		 * an as of yet unknown reason, 24xx series cards (and
3688 		 * potentially others) can interrupt with a LIP Reset status
3689 		 * when no LIP reset came down the wire. Additionally, the LIP
3690 		 * primitive accompanying this status would not be a valid LIP
3691 		 * Reset primitive, but some variation of an invalid AL_PA
3692 		 * LIP. As a result, we have to verify the AL_PD in the LIP
3693 		 * addresses our port before blindly resetting.
3694 		*/
3695 		if (FCP_IS_DEST_ALPD(fcp, (lipp & 0x00FF)))
3696 			isp_fcp_reset_crn(isp, bus, /*tgt*/0, /*tgt_set*/ 0);
3697 		isp_loop_changed(isp, bus);
3698 		break;
3699 	}
3700 	case ISPASYNC_LIP:
3701 		if (msg == NULL)
3702 			msg = "LIP Received";
3703 		/* FALLTHROUGH */
3704 	case ISPASYNC_LOOP_DOWN:
3705 		if (msg == NULL)
3706 			msg = "LOOP Down";
3707 		/* FALLTHROUGH */
3708 	case ISPASYNC_LOOP_UP:
3709 		if (msg == NULL)
3710 			msg = "LOOP Up";
3711 		va_start(ap, cmd);
3712 		bus = va_arg(ap, int);
3713 		va_end(ap);
3714 		isp_loop_changed(isp, bus);
3715 		isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
3716 		break;
3717 	case ISPASYNC_DEV_ARRIVED:
3718 		va_start(ap, cmd);
3719 		bus = va_arg(ap, int);
3720 		lp = va_arg(ap, fcportdb_t *);
3721 		va_end(ap);
3722 		fc = ISP_FC_PC(isp, bus);
3723 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3724 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3725 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "arrived");
3726 		if ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
3727 		    (lp->prli_word3 & PRLI_WD3_TARGET_FUNCTION)) {
3728 			lp->is_target = 1;
3729 			isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3730 			isp_make_here(isp, lp, bus, tgt);
3731 		}
3732 		if ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
3733 		    (lp->prli_word3 & PRLI_WD3_INITIATOR_FUNCTION)) {
3734 			lp->is_initiator = 1;
3735 			ac.contract_number = AC_CONTRACT_DEV_CHG;
3736 			adc = (struct ac_device_changed *) ac.contract_data;
3737 			adc->wwpn = lp->port_wwn;
3738 			adc->port = lp->portid;
3739 			adc->target = tgt;
3740 			adc->arrived = 1;
3741 			xpt_async(AC_CONTRACT, fc->path, &ac);
3742 		}
3743 		break;
3744 	case ISPASYNC_DEV_CHANGED:
3745 	case ISPASYNC_DEV_STAYED:
3746 	{
3747 		int crn_reset_done;
3748 
3749 		crn_reset_done = 0;
3750 		va_start(ap, cmd);
3751 		bus = va_arg(ap, int);
3752 		lp = va_arg(ap, fcportdb_t *);
3753 		va_end(ap);
3754 		fc = ISP_FC_PC(isp, bus);
3755 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3756 		isp_gen_role_str(buf, sizeof (buf), lp->new_prli_word3);
3757 		if (cmd == ISPASYNC_DEV_CHANGED)
3758 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->new_portid, lp->handle, buf, "changed");
3759 		else
3760 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "stayed");
3761 
3762 		if (lp->is_target !=
3763 		    ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
3764 		     (lp->new_prli_word3 & PRLI_WD3_TARGET_FUNCTION))) {
3765 			lp->is_target = !lp->is_target;
3766 			if (lp->is_target) {
3767 				if (cmd == ISPASYNC_DEV_CHANGED) {
3768 					isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3769 					crn_reset_done = 1;
3770 				}
3771 				isp_make_here(isp, lp, bus, tgt);
3772 			} else {
3773 				isp_make_gone(isp, lp, bus, tgt);
3774 				if (cmd == ISPASYNC_DEV_CHANGED) {
3775 					isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3776 					crn_reset_done = 1;
3777 				}
3778 			}
3779 		}
3780 		if (lp->is_initiator !=
3781 		    ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
3782 		     (lp->new_prli_word3 & PRLI_WD3_INITIATOR_FUNCTION))) {
3783 			lp->is_initiator = !lp->is_initiator;
3784 			ac.contract_number = AC_CONTRACT_DEV_CHG;
3785 			adc = (struct ac_device_changed *) ac.contract_data;
3786 			adc->wwpn = lp->port_wwn;
3787 			adc->port = lp->portid;
3788 			adc->target = tgt;
3789 			adc->arrived = lp->is_initiator;
3790 			xpt_async(AC_CONTRACT, fc->path, &ac);
3791 		}
3792 
3793 		if ((cmd == ISPASYNC_DEV_CHANGED) &&
3794 		    (crn_reset_done == 0))
3795 			isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3796 
3797 		break;
3798 	}
3799 	case ISPASYNC_DEV_GONE:
3800 		va_start(ap, cmd);
3801 		bus = va_arg(ap, int);
3802 		lp = va_arg(ap, fcportdb_t *);
3803 		va_end(ap);
3804 		fc = ISP_FC_PC(isp, bus);
3805 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3806 		/*
3807 		 * If this has a virtual target or initiator set the isp_gdt
3808 		 * timer running on it to delay its departure.
3809 		 */
3810 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3811 		if (lp->is_target || lp->is_initiator) {
3812 			lp->state = FC_PORTDB_STATE_ZOMBIE;
3813 			lp->gone_timer = fc->gone_device_time;
3814 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone zombie");
3815 			if (fc->ready && !callout_active(&fc->gdt)) {
3816 				isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Starting Gone Device Timer with %u seconds time now %lu", bus, lp->gone_timer, (unsigned long)time_uptime);
3817 				callout_reset(&fc->gdt, hz, isp_gdt, fc);
3818 			}
3819 			break;
3820 		}
3821 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone");
3822 		break;
3823 	case ISPASYNC_CHANGE_NOTIFY:
3824 	{
3825 		char *msg;
3826 		int evt, nphdl, nlstate, portid, reason;
3827 
3828 		va_start(ap, cmd);
3829 		bus = va_arg(ap, int);
3830 		evt = va_arg(ap, int);
3831 		if (evt == ISPASYNC_CHANGE_PDB) {
3832 			nphdl = va_arg(ap, int);
3833 			nlstate = va_arg(ap, int);
3834 			reason = va_arg(ap, int);
3835 		} else if (evt == ISPASYNC_CHANGE_SNS) {
3836 			portid = va_arg(ap, int);
3837 		} else {
3838 			nphdl = NIL_HANDLE;
3839 			nlstate = reason = 0;
3840 		}
3841 		va_end(ap);
3842 
3843 		if (evt == ISPASYNC_CHANGE_PDB) {
3844 			int tgt_set = 0;
3845 			msg = "Port Database Changed";
3846 			isp_prt(isp, ISP_LOGINFO,
3847 			    "Chan %d %s (nphdl 0x%x state 0x%x reason 0x%x)",
3848 			    bus, msg, nphdl, nlstate, reason);
3849 			/*
3850 			 * Port database syncs are not sufficient for
3851 			 * determining that logins or logouts are done on the
3852 			 * loop, but this information is directly available from
3853 			 * the reason code from the incoming mbox. We must reset
3854 			 * the fcp crn on these events according to FCP-4
3855 			 */
3856 			switch (reason) {
3857 			case PDB24XX_AE_IMPL_LOGO_1:
3858 			case PDB24XX_AE_IMPL_LOGO_2:
3859 			case PDB24XX_AE_IMPL_LOGO_3:
3860 			case PDB24XX_AE_PLOGI_RCVD:
3861 			case PDB24XX_AE_PRLI_RCVD:
3862 			case PDB24XX_AE_PRLO_RCVD:
3863 			case PDB24XX_AE_LOGO_RCVD:
3864 			case PDB24XX_AE_PLOGI_DONE:
3865 			case PDB24XX_AE_PRLI_DONE:
3866 				/*
3867 				 * If the event is not global, twiddle tgt and
3868 				 * tgt_set to nominate only the target
3869 				 * associated with the nphdl.
3870 				 */
3871 				if (nphdl != PDB24XX_AE_GLOBAL) {
3872 					/* Break if we don't yet have the pdb */
3873 					if (!isp_find_pdb_by_handle(isp, bus, nphdl, &lp))
3874 						break;
3875 					tgt = FC_PORTDB_TGT(isp, bus, lp);
3876 					tgt_set = 1;
3877 				}
3878 				isp_fcp_reset_crn(isp, bus, tgt, tgt_set);
3879 				break;
3880 			default:
3881 				break; /* NOP */
3882 			}
3883 		} else if (evt == ISPASYNC_CHANGE_SNS) {
3884 			msg = "Name Server Database Changed";
3885 			isp_prt(isp, ISP_LOGINFO, "Chan %d %s (PortID 0x%06x)",
3886 			    bus, msg, portid);
3887 		} else {
3888 			msg = "Other Change Notify";
3889 			isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
3890 		}
3891 		isp_loop_changed(isp, bus);
3892 		break;
3893 	}
3894 #ifdef	ISP_TARGET_MODE
3895 	case ISPASYNC_TARGET_NOTIFY:
3896 	{
3897 		isp_notify_t *notify;
3898 		va_start(ap, cmd);
3899 		notify = va_arg(ap, isp_notify_t *);
3900 		va_end(ap);
3901 		switch (notify->nt_ncode) {
3902 		case NT_ABORT_TASK:
3903 		case NT_ABORT_TASK_SET:
3904 		case NT_CLEAR_ACA:
3905 		case NT_CLEAR_TASK_SET:
3906 		case NT_LUN_RESET:
3907 		case NT_TARGET_RESET:
3908 		case NT_QUERY_TASK_SET:
3909 		case NT_QUERY_ASYNC_EVENT:
3910 			/*
3911 			 * These are task management functions.
3912 			 */
3913 			isp_handle_platform_target_tmf(isp, notify);
3914 			break;
3915 		case NT_BUS_RESET:
3916 		case NT_LIP_RESET:
3917 		case NT_LINK_UP:
3918 		case NT_LINK_DOWN:
3919 		case NT_HBA_RESET:
3920 			/*
3921 			 * No action need be taken here.
3922 			 */
3923 			break;
3924 		case NT_GLOBAL_LOGOUT:
3925 		case NT_LOGOUT:
3926 			/*
3927 			 * This is device arrival/departure notification
3928 			 */
3929 			isp_handle_platform_target_notify_ack(isp, notify, 0);
3930 			break;
3931 		case NT_SRR:
3932 			isp_handle_platform_srr(isp, notify);
3933 			break;
3934 		default:
3935 			isp_prt(isp, ISP_LOGALL, "target notify code 0x%x", notify->nt_ncode);
3936 			isp_handle_platform_target_notify_ack(isp, notify, 0);
3937 			break;
3938 		}
3939 		break;
3940 	}
3941 	case ISPASYNC_TARGET_NOTIFY_ACK:
3942 	{
3943 		void *inot;
3944 		va_start(ap, cmd);
3945 		inot = va_arg(ap, void *);
3946 		va_end(ap);
3947 		if (isp_notify_ack(isp, inot)) {
3948 			isp_tna_t *tp = malloc(sizeof (*tp), M_DEVBUF, M_NOWAIT);
3949 			if (tp) {
3950 				tp->isp = isp;
3951 				memcpy(tp->data, inot, sizeof (tp->data));
3952 				tp->not = tp->data;
3953 				callout_init_mtx(&tp->timer, &isp->isp_lock, 0);
3954 				callout_reset(&tp->timer, 5,
3955 				    isp_refire_notify_ack, tp);
3956 			} else {
3957 				isp_prt(isp, ISP_LOGERR, "you lose- cannot allocate a notify refire");
3958 			}
3959 		}
3960 		break;
3961 	}
3962 	case ISPASYNC_TARGET_ACTION:
3963 	{
3964 		isphdr_t *hp;
3965 
3966 		va_start(ap, cmd);
3967 		hp = va_arg(ap, isphdr_t *);
3968 		va_end(ap);
3969 		switch (hp->rqs_entry_type) {
3970 		case RQSTYPE_ATIO:
3971 			isp_handle_platform_atio7(isp, (at7_entry_t *) hp);
3972 			break;
3973 		case RQSTYPE_ATIO2:
3974 			isp_handle_platform_atio2(isp, (at2_entry_t *) hp);
3975 			break;
3976 		case RQSTYPE_CTIO7:
3977 		case RQSTYPE_CTIO3:
3978 		case RQSTYPE_CTIO2:
3979 		case RQSTYPE_CTIO:
3980 			isp_handle_platform_ctio(isp, hp);
3981 			break;
3982 		default:
3983 			isp_prt(isp, ISP_LOGWARN, "%s: unhandled target action 0x%x",
3984 			    __func__, hp->rqs_entry_type);
3985 			break;
3986 		}
3987 		break;
3988 	}
3989 #endif
3990 	case ISPASYNC_FW_CRASH:
3991 	{
3992 		uint16_t mbox1, mbox6;
3993 		mbox1 = ISP_READ(isp, OUTMAILBOX1);
3994 		if (IS_DUALBUS(isp)) {
3995 			mbox6 = ISP_READ(isp, OUTMAILBOX6);
3996 		} else {
3997 			mbox6 = 0;
3998 		}
3999 		isp_prt(isp, ISP_LOGERR, "Internal Firmware Error on bus %d @ RISC Address 0x%x", mbox6, mbox1);
4000 #if 0
4001 		mbox1 = isp->isp_osinfo.mbox_sleep_ok;
4002 		isp->isp_osinfo.mbox_sleep_ok = 0;
4003 		isp_reinit(isp, 1);
4004 		isp->isp_osinfo.mbox_sleep_ok = mbox1;
4005 		isp_async(isp, ISPASYNC_FW_RESTARTED, NULL);
4006 #endif
4007 		break;
4008 	}
4009 	default:
4010 		isp_prt(isp, ISP_LOGERR, "unknown isp_async event %d", cmd);
4011 		break;
4012 	}
4013 }
4014 
4015 uint64_t
4016 isp_default_wwn(ispsoftc_t * isp, int chan, int isactive, int iswwnn)
4017 {
4018 	uint64_t seed;
4019 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
4020 
4021 	/* First try to use explicitly configured WWNs. */
4022 	seed = iswwnn ? fc->def_wwnn : fc->def_wwpn;
4023 	if (seed)
4024 		return (seed);
4025 
4026 	/* Otherwise try to use WWNs from NVRAM. */
4027 	if (isactive) {
4028 		seed = iswwnn ? FCPARAM(isp, chan)->isp_wwnn_nvram :
4029 		    FCPARAM(isp, chan)->isp_wwpn_nvram;
4030 		if (seed)
4031 			return (seed);
4032 	}
4033 
4034 	/* If still no WWNs, try to steal them from the first channel. */
4035 	if (chan > 0) {
4036 		seed = iswwnn ? ISP_FC_PC(isp, 0)->def_wwnn :
4037 		    ISP_FC_PC(isp, 0)->def_wwpn;
4038 		if (seed == 0) {
4039 			seed = iswwnn ? FCPARAM(isp, 0)->isp_wwnn_nvram :
4040 			    FCPARAM(isp, 0)->isp_wwpn_nvram;
4041 		}
4042 	}
4043 
4044 	/* If still nothing -- improvise. */
4045 	if (seed == 0) {
4046 		seed = 0x400000007F000000ull + device_get_unit(isp->isp_dev);
4047 		if (!iswwnn)
4048 			seed ^= 0x0100000000000000ULL;
4049 	}
4050 
4051 	/* For additional channels we have to improvise even more. */
4052 	if (!iswwnn && chan > 0) {
4053 		/*
4054 		 * We'll stick our channel number plus one first into bits
4055 		 * 57..59 and thence into bits 52..55 which allows for 8 bits
4056 		 * of channel which is enough for our maximum of 255 channels.
4057 		 */
4058 		seed ^= 0x0100000000000000ULL;
4059 		seed ^= ((uint64_t) (chan + 1) & 0xf) << 56;
4060 		seed ^= ((uint64_t) ((chan + 1) >> 4) & 0xf) << 52;
4061 	}
4062 	return (seed);
4063 }
4064 
4065 void
4066 isp_prt(ispsoftc_t *isp, int level, const char *fmt, ...)
4067 {
4068 	int loc;
4069 	char lbuf[200];
4070 	va_list ap;
4071 
4072 	if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
4073 		return;
4074 	}
4075 	snprintf(lbuf, sizeof (lbuf), "%s: ", device_get_nameunit(isp->isp_dev));
4076 	loc = strlen(lbuf);
4077 	va_start(ap, fmt);
4078 	vsnprintf(&lbuf[loc], sizeof (lbuf) - loc - 1, fmt, ap);
4079 	va_end(ap);
4080 	printf("%s\n", lbuf);
4081 }
4082 
4083 void
4084 isp_xs_prt(ispsoftc_t *isp, XS_T *xs, int level, const char *fmt, ...)
4085 {
4086 	va_list ap;
4087 	if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
4088 		return;
4089 	}
4090 	xpt_print_path(xs->ccb_h.path);
4091 	va_start(ap, fmt);
4092 	vprintf(fmt, ap);
4093 	va_end(ap);
4094 	printf("\n");
4095 }
4096 
4097 uint64_t
4098 isp_nanotime_sub(struct timespec *b, struct timespec *a)
4099 {
4100 	uint64_t elapsed;
4101 	struct timespec x;
4102 
4103 	timespecsub(b, a, &x);
4104 	elapsed = GET_NANOSEC(&x);
4105 	if (elapsed == 0)
4106 		elapsed++;
4107 	return (elapsed);
4108 }
4109 
4110 int
4111 isp_mbox_acquire(ispsoftc_t *isp)
4112 {
4113 	if (isp->isp_osinfo.mboxbsy) {
4114 		return (1);
4115 	} else {
4116 		isp->isp_osinfo.mboxcmd_done = 0;
4117 		isp->isp_osinfo.mboxbsy = 1;
4118 		return (0);
4119 	}
4120 }
4121 
4122 void
4123 isp_mbox_wait_complete(ispsoftc_t *isp, mbreg_t *mbp)
4124 {
4125 	u_int t, to;
4126 
4127 	to = (mbp->timeout == 0) ? MBCMD_DEFAULT_TIMEOUT : mbp->timeout;
4128 	if (isp->isp_osinfo.mbox_sleep_ok) {
4129 		isp->isp_osinfo.mbox_sleep_ok = 0;
4130 		isp->isp_osinfo.mbox_sleeping = 1;
4131 		msleep_sbt(&isp->isp_osinfo.mboxcmd_done, &isp->isp_lock,
4132 		    PRIBIO, "ispmbx_sleep", to * SBT_1US, 0, 0);
4133 		isp->isp_osinfo.mbox_sleep_ok = 1;
4134 		isp->isp_osinfo.mbox_sleeping = 0;
4135 	} else {
4136 		for (t = 0; t < to; t += 100) {
4137 			if (isp->isp_osinfo.mboxcmd_done)
4138 				break;
4139 			ISP_RUN_ISR(isp);
4140 			if (isp->isp_osinfo.mboxcmd_done)
4141 				break;
4142 			ISP_DELAY(100);
4143 		}
4144 	}
4145 	if (isp->isp_osinfo.mboxcmd_done == 0) {
4146 		isp_prt(isp, ISP_LOGWARN, "%s Mailbox Command (0x%x) Timeout (%uus) (%s:%d)",
4147 		    isp->isp_osinfo.mbox_sleep_ok? "Interrupting" : "Polled",
4148 		    isp->isp_lastmbxcmd, to, mbp->func, mbp->lineno);
4149 		mbp->param[0] = MBOX_TIMEOUT;
4150 		isp->isp_osinfo.mboxcmd_done = 1;
4151 	}
4152 }
4153 
4154 void
4155 isp_mbox_notify_done(ispsoftc_t *isp)
4156 {
4157 	isp->isp_osinfo.mboxcmd_done = 1;
4158 	if (isp->isp_osinfo.mbox_sleeping)
4159 		wakeup(&isp->isp_osinfo.mboxcmd_done);
4160 }
4161 
4162 void
4163 isp_mbox_release(ispsoftc_t *isp)
4164 {
4165 	isp->isp_osinfo.mboxbsy = 0;
4166 }
4167 
4168 int
4169 isp_fc_scratch_acquire(ispsoftc_t *isp, int chan)
4170 {
4171 	int ret = 0;
4172 	if (isp->isp_osinfo.pc.fc[chan].fcbsy) {
4173 		ret = -1;
4174 	} else {
4175 		isp->isp_osinfo.pc.fc[chan].fcbsy = 1;
4176 	}
4177 	return (ret);
4178 }
4179 
4180 void
4181 isp_platform_intr(void *arg)
4182 {
4183 	ispsoftc_t *isp = arg;
4184 
4185 	ISP_LOCK(isp);
4186 	ISP_RUN_ISR(isp);
4187 	ISP_UNLOCK(isp);
4188 }
4189 
4190 void
4191 isp_platform_intr_resp(void *arg)
4192 {
4193 	ispsoftc_t *isp = arg;
4194 
4195 	ISP_LOCK(isp);
4196 	isp_intr_respq(isp);
4197 	ISP_UNLOCK(isp);
4198 
4199 	/* We have handshake enabled, so explicitly complete interrupt */
4200 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
4201 }
4202 
4203 void
4204 isp_platform_intr_atio(void *arg)
4205 {
4206 	ispsoftc_t *isp = arg;
4207 
4208 	ISP_LOCK(isp);
4209 #ifdef	ISP_TARGET_MODE
4210 	isp_intr_atioq(isp);
4211 #endif
4212 	ISP_UNLOCK(isp);
4213 
4214 	/* We have handshake enabled, so explicitly complete interrupt */
4215 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
4216 }
4217 
4218 void
4219 isp_common_dmateardown(ispsoftc_t *isp, struct ccb_scsiio *csio, uint32_t hdl)
4220 {
4221 	if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4222 		bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTREAD);
4223 	} else {
4224 		bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTWRITE);
4225 	}
4226 	bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
4227 }
4228 
4229 /*
4230  * Reset the command reference number for all LUNs on a specific target
4231  * (needed when a target arrives again) or for all targets on a port
4232  * (needed for events like a LIP).
4233  */
4234 void
4235 isp_fcp_reset_crn(ispsoftc_t *isp, int chan, uint32_t tgt, int tgt_set)
4236 {
4237 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
4238 	struct isp_nexus *nxp;
4239 	int i;
4240 
4241 	if (tgt_set == 0)
4242 		isp_prt(isp, ISP_LOGDEBUG0,
4243 		    "Chan %d resetting CRN on all targets", chan);
4244 	else
4245 		isp_prt(isp, ISP_LOGDEBUG0,
4246 		    "Chan %d resetting CRN on target %u", chan, tgt);
4247 
4248 	for (i = 0; i < NEXUS_HASH_WIDTH; i++) {
4249 		for (nxp = fc->nexus_hash[i]; nxp != NULL; nxp = nxp->next) {
4250 			if (tgt_set == 0 || tgt == nxp->tgt)
4251 				nxp->crnseed = 0;
4252 		}
4253 	}
4254 }
4255 
4256 int
4257 isp_fcp_next_crn(ispsoftc_t *isp, uint8_t *crnp, XS_T *cmd)
4258 {
4259 	lun_id_t lun;
4260 	uint32_t chan, tgt;
4261 	struct isp_fc *fc;
4262 	struct isp_nexus *nxp;
4263 	int idx;
4264 
4265 	if (IS_2100(isp))
4266 		return (0);
4267 
4268 	chan = XS_CHANNEL(cmd);
4269 	tgt = XS_TGT(cmd);
4270 	lun = XS_LUN(cmd);
4271 	fc = &isp->isp_osinfo.pc.fc[chan];
4272 	idx = NEXUS_HASH(tgt, lun);
4273 	nxp = fc->nexus_hash[idx];
4274 
4275 	while (nxp) {
4276 		if (nxp->tgt == tgt && nxp->lun == lun)
4277 			break;
4278 		nxp = nxp->next;
4279 	}
4280 	if (nxp == NULL) {
4281 		nxp = fc->nexus_free_list;
4282 		if (nxp == NULL) {
4283 			nxp = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_ZERO|M_NOWAIT);
4284 			if (nxp == NULL) {
4285 				return (-1);
4286 			}
4287 		} else {
4288 			fc->nexus_free_list = nxp->next;
4289 		}
4290 		nxp->tgt = tgt;
4291 		nxp->lun = lun;
4292 		nxp->next = fc->nexus_hash[idx];
4293 		fc->nexus_hash[idx] = nxp;
4294 	}
4295 	if (nxp->crnseed == 0)
4296 		nxp->crnseed = 1;
4297 	*crnp = nxp->crnseed++;
4298 	return (0);
4299 }
4300 
4301 /*
4302  * We enter with the lock held
4303  */
4304 void
4305 isp_timer(void *arg)
4306 {
4307 	ispsoftc_t *isp = arg;
4308 #ifdef	ISP_TARGET_MODE
4309 	isp_tmcmd_restart(isp);
4310 #endif
4311 	callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
4312 }
4313 
4314 isp_ecmd_t *
4315 isp_get_ecmd(ispsoftc_t *isp)
4316 {
4317 	isp_ecmd_t *ecmd = isp->isp_osinfo.ecmd_free;
4318 	if (ecmd) {
4319 		isp->isp_osinfo.ecmd_free = ecmd->next;
4320 	}
4321 	return (ecmd);
4322 }
4323 
4324 void
4325 isp_put_ecmd(ispsoftc_t *isp, isp_ecmd_t *ecmd)
4326 {
4327 	ecmd->next = isp->isp_osinfo.ecmd_free;
4328 	isp->isp_osinfo.ecmd_free = ecmd;
4329 }
4330