xref: /freebsd/sys/dev/isp/isp_freebsd.c (revision d93a896e)
1 /*-
2  * Copyright (c) 2009-2017 Alexander Motin <mav@FreeBSD.org>
3  * Copyright (c) 1997-2009 by Matthew Jacob
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice immediately at the beginning of the file, without modification,
11  *    this list of conditions, and the following disclaimer.
12  * 2. The name of the author may not be used to endorse or promote products
13  *    derived from this software without specific prior written permission.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 /*
29  * Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
30  */
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <dev/isp/isp_freebsd.h>
35 #include <sys/unistd.h>
36 #include <sys/kthread.h>
37 #include <sys/conf.h>
38 #include <sys/module.h>
39 #include <sys/ioccom.h>
40 #include <dev/isp/isp_ioctl.h>
41 #include <sys/devicestat.h>
42 #include <cam/cam_periph.h>
43 #include <cam/cam_xpt_periph.h>
44 
45 MODULE_VERSION(isp, 1);
46 MODULE_DEPEND(isp, cam, 1, 1, 1);
47 int isp_announced = 0;
48 int isp_loop_down_limit = 60;	/* default loop down limit */
49 int isp_quickboot_time = 7;	/* don't wait more than N secs for loop up */
50 int isp_gone_device_time = 30;	/* grace time before reporting device lost */
51 static const char prom3[] = "Chan %d [%u] PortID 0x%06x Departed because of %s";
52 
53 static void isp_freeze_loopdown(ispsoftc_t *, int);
54 static void isp_loop_changed(ispsoftc_t *isp, int chan);
55 static d_ioctl_t ispioctl;
56 static void isp_cam_async(void *, uint32_t, struct cam_path *, void *);
57 static void isp_poll(struct cam_sim *);
58 static timeout_t isp_watchdog;
59 static timeout_t isp_gdt;
60 static task_fn_t isp_gdt_task;
61 static void isp_kthread(void *);
62 static void isp_action(struct cam_sim *, union ccb *);
63 static int isp_timer_count;
64 static void isp_timer(void *);
65 
66 static struct cdevsw isp_cdevsw = {
67 	.d_version =	D_VERSION,
68 	.d_ioctl =	ispioctl,
69 	.d_name =	"isp",
70 };
71 
72 static int
73 isp_role_sysctl(SYSCTL_HANDLER_ARGS)
74 {
75 	ispsoftc_t *isp = (ispsoftc_t *)arg1;
76 	int chan = arg2;
77 	int error, old, value;
78 
79 	value = FCPARAM(isp, chan)->role;
80 
81 	error = sysctl_handle_int(oidp, &value, 0, req);
82 	if ((error != 0) || (req->newptr == NULL))
83 		return (error);
84 
85 	if (value < ISP_ROLE_NONE || value > ISP_ROLE_BOTH)
86 		return (EINVAL);
87 
88 	ISP_LOCK(isp);
89 	old = FCPARAM(isp, chan)->role;
90 
91 	/* We don't allow target mode switch from here. */
92 	value = (old & ISP_ROLE_TARGET) | (value & ISP_ROLE_INITIATOR);
93 
94 	/* If nothing has changed -- we are done. */
95 	if (value == old) {
96 		ISP_UNLOCK(isp);
97 		return (0);
98 	}
99 
100 	/* Actually change the role. */
101 	error = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, value);
102 	ISP_UNLOCK(isp);
103 	return (error);
104 }
105 
106 static int
107 isp_attach_chan(ispsoftc_t *isp, struct cam_devq *devq, int chan)
108 {
109 	struct ccb_setasync csa;
110 	struct cam_sim *sim;
111 	struct cam_path *path;
112 #ifdef	ISP_TARGET_MODE
113 	int i;
114 #endif
115 
116 	sim = cam_sim_alloc(isp_action, isp_poll, "isp", isp,
117 	    device_get_unit(isp->isp_dev), &isp->isp_lock,
118 	    isp->isp_maxcmds, isp->isp_maxcmds, devq);
119 	if (sim == NULL)
120 		return (ENOMEM);
121 
122 	ISP_LOCK(isp);
123 	if (xpt_bus_register(sim, isp->isp_dev, chan) != CAM_SUCCESS) {
124 		ISP_UNLOCK(isp);
125 		cam_sim_free(sim, FALSE);
126 		return (EIO);
127 	}
128 	ISP_UNLOCK(isp);
129 	if (xpt_create_path(&path, NULL, cam_sim_path(sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
130 		ISP_LOCK(isp);
131 		xpt_bus_deregister(cam_sim_path(sim));
132 		ISP_UNLOCK(isp);
133 		cam_sim_free(sim, FALSE);
134 		return (ENXIO);
135 	}
136 	xpt_setup_ccb(&csa.ccb_h, path, 5);
137 	csa.ccb_h.func_code = XPT_SASYNC_CB;
138 	csa.event_enable = AC_LOST_DEVICE;
139 	csa.callback = isp_cam_async;
140 	csa.callback_arg = sim;
141 
142 	ISP_LOCK(isp);
143 	xpt_action((union ccb *)&csa);
144 	ISP_UNLOCK(isp);
145 
146 	if (IS_SCSI(isp)) {
147 		struct isp_spi *spi = ISP_SPI_PC(isp, chan);
148 		spi->sim = sim;
149 		spi->path = path;
150 #ifdef	ISP_TARGET_MODE
151 		TAILQ_INIT(&spi->waitq);
152 		STAILQ_INIT(&spi->ntfree);
153 		for (i = 0; i < ATPDPSIZE; i++)
154 			STAILQ_INSERT_TAIL(&spi->ntfree, &spi->ntpool[i], next);
155 		LIST_INIT(&spi->atfree);
156 		for (i = ATPDPSIZE-1; i >= 0; i--)
157 			LIST_INSERT_HEAD(&spi->atfree, &spi->atpool[i], next);
158 		for (i = 0; i < ATPDPHASHSIZE; i++)
159 			LIST_INIT(&spi->atused[i]);
160 #endif
161 	} else {
162 		fcparam *fcp = FCPARAM(isp, chan);
163 		struct isp_fc *fc = ISP_FC_PC(isp, chan);
164 		struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(isp->isp_osinfo.dev);
165 		struct sysctl_oid *tree = device_get_sysctl_tree(isp->isp_osinfo.dev);
166 		char name[16];
167 
168 		ISP_LOCK(isp);
169 		fc->sim = sim;
170 		fc->path = path;
171 		fc->isp = isp;
172 		fc->ready = 1;
173 		fcp->isp_use_gft_id = 1;
174 		fcp->isp_use_gff_id = 1;
175 
176 		callout_init_mtx(&fc->gdt, &isp->isp_lock, 0);
177 		TASK_INIT(&fc->gtask, 1, isp_gdt_task, fc);
178 #ifdef	ISP_TARGET_MODE
179 		TAILQ_INIT(&fc->waitq);
180 		STAILQ_INIT(&fc->ntfree);
181 		for (i = 0; i < ATPDPSIZE; i++)
182 			STAILQ_INSERT_TAIL(&fc->ntfree, &fc->ntpool[i], next);
183 		LIST_INIT(&fc->atfree);
184 		for (i = ATPDPSIZE-1; i >= 0; i--)
185 			LIST_INSERT_HEAD(&fc->atfree, &fc->atpool[i], next);
186 		for (i = 0; i < ATPDPHASHSIZE; i++)
187 			LIST_INIT(&fc->atused[i]);
188 #endif
189 		isp_loop_changed(isp, chan);
190 		ISP_UNLOCK(isp);
191 		if (kproc_create(isp_kthread, fc, &fc->kproc, 0, 0,
192 		    "%s_%d", device_get_nameunit(isp->isp_osinfo.dev), chan)) {
193 			xpt_free_path(fc->path);
194 			ISP_LOCK(isp);
195 			xpt_bus_deregister(cam_sim_path(fc->sim));
196 			ISP_UNLOCK(isp);
197 			cam_sim_free(fc->sim, FALSE);
198 			return (ENOMEM);
199 		}
200 		fc->num_threads += 1;
201 		if (chan > 0) {
202 			snprintf(name, sizeof(name), "chan%d", chan);
203 			tree = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree),
204 			    OID_AUTO, name, CTLFLAG_RW, 0, "Virtual channel");
205 		}
206 		SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
207 		    "wwnn", CTLFLAG_RD, &fcp->isp_wwnn,
208 		    "World Wide Node Name");
209 		SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
210 		    "wwpn", CTLFLAG_RD, &fcp->isp_wwpn,
211 		    "World Wide Port Name");
212 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
213 		    "loop_down_limit", CTLFLAG_RW, &fc->loop_down_limit, 0,
214 		    "Loop Down Limit");
215 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
216 		    "gone_device_time", CTLFLAG_RW, &fc->gone_device_time, 0,
217 		    "Gone Device Time");
218 #if defined(ISP_TARGET_MODE) && defined(DEBUG)
219 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
220 		    "inject_lost_data_frame", CTLFLAG_RW, &fc->inject_lost_data_frame, 0,
221 		    "Cause a Lost Frame on a Read");
222 #endif
223 		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
224 		    "role", CTLTYPE_INT | CTLFLAG_RW, isp, chan,
225 		    isp_role_sysctl, "I", "Current role");
226 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
227 		    "speed", CTLFLAG_RD, &fcp->isp_gbspeed, 0,
228 		    "Connection speed in gigabits");
229 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
230 		    "linkstate", CTLFLAG_RD, &fcp->isp_linkstate, 0,
231 		    "Link state");
232 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
233 		    "fwstate", CTLFLAG_RD, &fcp->isp_fwstate, 0,
234 		    "Firmware state");
235 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
236 		    "loopstate", CTLFLAG_RD, &fcp->isp_loopstate, 0,
237 		    "Loop state");
238 		SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
239 		    "topo", CTLFLAG_RD, &fcp->isp_topo, 0,
240 		    "Connection topology");
241 		SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
242 		    "use_gft_id", CTLFLAG_RWTUN, &fcp->isp_use_gft_id, 0,
243 		    "Use GFT_ID during fabric scan");
244 		SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
245 		    "use_gff_id", CTLFLAG_RWTUN, &fcp->isp_use_gff_id, 0,
246 		    "Use GFF_ID during fabric scan");
247 	}
248 	return (0);
249 }
250 
251 static void
252 isp_detach_chan(ispsoftc_t *isp, int chan)
253 {
254 	struct cam_sim *sim;
255 	struct cam_path *path;
256 	struct ccb_setasync csa;
257 	int *num_threads;
258 
259 	ISP_GET_PC(isp, chan, sim, sim);
260 	ISP_GET_PC(isp, chan, path, path);
261 	ISP_GET_PC_ADDR(isp, chan, num_threads, num_threads);
262 
263 	xpt_setup_ccb(&csa.ccb_h, path, 5);
264 	csa.ccb_h.func_code = XPT_SASYNC_CB;
265 	csa.event_enable = 0;
266 	csa.callback = isp_cam_async;
267 	csa.callback_arg = sim;
268 	xpt_action((union ccb *)&csa);
269 	xpt_free_path(path);
270 	xpt_bus_deregister(cam_sim_path(sim));
271 	cam_sim_free(sim, FALSE);
272 
273 	/* Wait for the channel's spawned threads to exit. */
274 	wakeup(isp->isp_osinfo.pc.ptr);
275 	while (*num_threads != 0)
276 		mtx_sleep(isp, &isp->isp_lock, PRIBIO, "isp_reap", 100);
277 }
278 
279 int
280 isp_attach(ispsoftc_t *isp)
281 {
282 	const char *nu = device_get_nameunit(isp->isp_osinfo.dev);
283 	int du = device_get_unit(isp->isp_dev);
284 	int chan;
285 
286 	/*
287 	 * Create the device queue for our SIM(s).
288 	 */
289 	isp->isp_osinfo.devq = cam_simq_alloc(isp->isp_maxcmds);
290 	if (isp->isp_osinfo.devq == NULL) {
291 		return (EIO);
292 	}
293 
294 	for (chan = 0; chan < isp->isp_nchan; chan++) {
295 		if (isp_attach_chan(isp, isp->isp_osinfo.devq, chan)) {
296 			goto unwind;
297 		}
298 	}
299 
300 	callout_init_mtx(&isp->isp_osinfo.tmo, &isp->isp_lock, 0);
301 	isp_timer_count = hz >> 2;
302 	callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
303 
304 	isp->isp_osinfo.cdev = make_dev(&isp_cdevsw, du, UID_ROOT, GID_OPERATOR, 0600, "%s", nu);
305 	if (isp->isp_osinfo.cdev) {
306 		isp->isp_osinfo.cdev->si_drv1 = isp;
307 	}
308 	return (0);
309 
310 unwind:
311 	while (--chan >= 0) {
312 		struct cam_sim *sim;
313 		struct cam_path *path;
314 
315 		ISP_GET_PC(isp, chan, sim, sim);
316 		ISP_GET_PC(isp, chan, path, path);
317 		xpt_free_path(path);
318 		ISP_LOCK(isp);
319 		xpt_bus_deregister(cam_sim_path(sim));
320 		ISP_UNLOCK(isp);
321 		cam_sim_free(sim, FALSE);
322 	}
323 	cam_simq_free(isp->isp_osinfo.devq);
324 	isp->isp_osinfo.devq = NULL;
325 	return (-1);
326 }
327 
328 int
329 isp_detach(ispsoftc_t *isp)
330 {
331 	int chan;
332 
333 	if (isp->isp_osinfo.cdev) {
334 		destroy_dev(isp->isp_osinfo.cdev);
335 		isp->isp_osinfo.cdev = NULL;
336 	}
337 	ISP_LOCK(isp);
338 	/* Tell spawned threads that we're exiting. */
339 	isp->isp_osinfo.is_exiting = 1;
340 	for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1)
341 		isp_detach_chan(isp, chan);
342 	ISP_UNLOCK(isp);
343 	callout_drain(&isp->isp_osinfo.tmo);
344 	cam_simq_free(isp->isp_osinfo.devq);
345 	return (0);
346 }
347 
348 static void
349 isp_freeze_loopdown(ispsoftc_t *isp, int chan)
350 {
351 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
352 
353 	if (fc->sim == NULL)
354 		return;
355 	if (fc->simqfrozen == 0) {
356 		isp_prt(isp, ISP_LOGDEBUG0,
357 		    "Chan %d Freeze simq (loopdown)", chan);
358 		fc->simqfrozen = SIMQFRZ_LOOPDOWN;
359 		xpt_hold_boot();
360 		xpt_freeze_simq(fc->sim, 1);
361 	} else {
362 		isp_prt(isp, ISP_LOGDEBUG0,
363 		    "Chan %d Mark simq frozen (loopdown)", chan);
364 		fc->simqfrozen |= SIMQFRZ_LOOPDOWN;
365 	}
366 }
367 
368 static void
369 isp_unfreeze_loopdown(ispsoftc_t *isp, int chan)
370 {
371 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
372 
373 	if (fc->sim == NULL)
374 		return;
375 	int wasfrozen = fc->simqfrozen & SIMQFRZ_LOOPDOWN;
376 	fc->simqfrozen &= ~SIMQFRZ_LOOPDOWN;
377 	if (wasfrozen && fc->simqfrozen == 0) {
378 		isp_prt(isp, ISP_LOGDEBUG0,
379 		    "Chan %d Release simq", chan);
380 		xpt_release_simq(fc->sim, 1);
381 		xpt_release_boot();
382 	}
383 }
384 
385 static int
386 ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
387 {
388 	ispsoftc_t *isp;
389 	int nr, chan, retval = ENOTTY;
390 
391 	isp = dev->si_drv1;
392 
393 	switch (c) {
394 	case ISP_SDBLEV:
395 	{
396 		int olddblev = isp->isp_dblev;
397 		isp->isp_dblev = *(int *)addr;
398 		*(int *)addr = olddblev;
399 		retval = 0;
400 		break;
401 	}
402 	case ISP_GETROLE:
403 		chan = *(int *)addr;
404 		if (chan < 0 || chan >= isp->isp_nchan) {
405 			retval = -ENXIO;
406 			break;
407 		}
408 		if (IS_FC(isp)) {
409 			*(int *)addr = FCPARAM(isp, chan)->role;
410 		} else {
411 			*(int *)addr = ISP_ROLE_INITIATOR;
412 		}
413 		retval = 0;
414 		break;
415 	case ISP_SETROLE:
416 		if (IS_SCSI(isp))
417 			break;
418 		nr = *(int *)addr;
419 		chan = nr >> 8;
420 		if (chan < 0 || chan >= isp->isp_nchan) {
421 			retval = -ENXIO;
422 			break;
423 		}
424 		nr &= 0xff;
425 		if (nr & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) {
426 			retval = EINVAL;
427 			break;
428 		}
429 		ISP_LOCK(isp);
430 		*(int *)addr = FCPARAM(isp, chan)->role;
431 		retval = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, nr);
432 		ISP_UNLOCK(isp);
433 		retval = 0;
434 		break;
435 
436 	case ISP_RESETHBA:
437 		ISP_LOCK(isp);
438 		isp_reinit(isp, 0);
439 		ISP_UNLOCK(isp);
440 		retval = 0;
441 		break;
442 
443 	case ISP_RESCAN:
444 		if (IS_FC(isp)) {
445 			chan = *(int *)addr;
446 			if (chan < 0 || chan >= isp->isp_nchan) {
447 				retval = -ENXIO;
448 				break;
449 			}
450 			ISP_LOCK(isp);
451 			if (isp_fc_runstate(isp, chan, 5 * 1000000) != LOOP_READY) {
452 				retval = EIO;
453 			} else {
454 				retval = 0;
455 			}
456 			ISP_UNLOCK(isp);
457 		}
458 		break;
459 
460 	case ISP_FC_LIP:
461 		if (IS_FC(isp)) {
462 			chan = *(int *)addr;
463 			if (chan < 0 || chan >= isp->isp_nchan) {
464 				retval = -ENXIO;
465 				break;
466 			}
467 			ISP_LOCK(isp);
468 			if (isp_control(isp, ISPCTL_SEND_LIP, chan)) {
469 				retval = EIO;
470 			} else {
471 				retval = 0;
472 			}
473 			ISP_UNLOCK(isp);
474 		}
475 		break;
476 	case ISP_FC_GETDINFO:
477 	{
478 		struct isp_fc_device *ifc = (struct isp_fc_device *) addr;
479 		fcportdb_t *lp;
480 
481 		if (IS_SCSI(isp)) {
482 			break;
483 		}
484 		if (ifc->loopid >= MAX_FC_TARG) {
485 			retval = EINVAL;
486 			break;
487 		}
488 		lp = &FCPARAM(isp, ifc->chan)->portdb[ifc->loopid];
489 		if (lp->state != FC_PORTDB_STATE_NIL) {
490 			ifc->role = (lp->prli_word3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
491 			ifc->loopid = lp->handle;
492 			ifc->portid = lp->portid;
493 			ifc->node_wwn = lp->node_wwn;
494 			ifc->port_wwn = lp->port_wwn;
495 			retval = 0;
496 		} else {
497 			retval = ENODEV;
498 		}
499 		break;
500 	}
501 	case ISP_FC_GETHINFO:
502 	{
503 		struct isp_hba_device *hba = (struct isp_hba_device *) addr;
504 		int chan = hba->fc_channel;
505 
506 		if (chan < 0 || chan >= isp->isp_nchan) {
507 			retval = ENXIO;
508 			break;
509 		}
510 		hba->fc_fw_major = ISP_FW_MAJORX(isp->isp_fwrev);
511 		hba->fc_fw_minor = ISP_FW_MINORX(isp->isp_fwrev);
512 		hba->fc_fw_micro = ISP_FW_MICROX(isp->isp_fwrev);
513 		hba->fc_nchannels = isp->isp_nchan;
514 		if (IS_FC(isp)) {
515 			hba->fc_nports = MAX_FC_TARG;
516 			hba->fc_speed = FCPARAM(isp, hba->fc_channel)->isp_gbspeed;
517 			hba->fc_topology = FCPARAM(isp, chan)->isp_topo + 1;
518 			hba->fc_loopid = FCPARAM(isp, chan)->isp_loopid;
519 			hba->nvram_node_wwn = FCPARAM(isp, chan)->isp_wwnn_nvram;
520 			hba->nvram_port_wwn = FCPARAM(isp, chan)->isp_wwpn_nvram;
521 			hba->active_node_wwn = FCPARAM(isp, chan)->isp_wwnn;
522 			hba->active_port_wwn = FCPARAM(isp, chan)->isp_wwpn;
523 		} else {
524 			hba->fc_nports = MAX_TARGETS;
525 			hba->fc_speed = 0;
526 			hba->fc_topology = 0;
527 			hba->nvram_node_wwn = 0ull;
528 			hba->nvram_port_wwn = 0ull;
529 			hba->active_node_wwn = 0ull;
530 			hba->active_port_wwn = 0ull;
531 		}
532 		retval = 0;
533 		break;
534 	}
535 	case ISP_TSK_MGMT:
536 	{
537 		int needmarker;
538 		struct isp_fc_tsk_mgmt *fct = (struct isp_fc_tsk_mgmt *) addr;
539 		uint16_t nphdl;
540 		mbreg_t mbs;
541 
542 		if (IS_SCSI(isp)) {
543 			break;
544 		}
545 
546 		chan = fct->chan;
547 		if (chan < 0 || chan >= isp->isp_nchan) {
548 			retval = -ENXIO;
549 			break;
550 		}
551 
552 		needmarker = retval = 0;
553 		nphdl = fct->loopid;
554 		ISP_LOCK(isp);
555 		if (IS_24XX(isp)) {
556 			void *reqp;
557 			uint8_t resp[QENTRY_LEN];
558 			isp24xx_tmf_t tmf;
559 			isp24xx_statusreq_t sp;
560 			fcparam *fcp = FCPARAM(isp, chan);
561 			fcportdb_t *lp;
562 			int i;
563 
564 			for (i = 0; i < MAX_FC_TARG; i++) {
565 				lp = &fcp->portdb[i];
566 				if (lp->handle == nphdl) {
567 					break;
568 				}
569 			}
570 			if (i == MAX_FC_TARG) {
571 				retval = ENXIO;
572 				ISP_UNLOCK(isp);
573 				break;
574 			}
575 			ISP_MEMZERO(&tmf, sizeof(tmf));
576 			tmf.tmf_header.rqs_entry_type = RQSTYPE_TSK_MGMT;
577 			tmf.tmf_header.rqs_entry_count = 1;
578 			tmf.tmf_nphdl = lp->handle;
579 			tmf.tmf_delay = 2;
580 			tmf.tmf_timeout = 4;
581 			tmf.tmf_tidlo = lp->portid;
582 			tmf.tmf_tidhi = lp->portid >> 16;
583 			tmf.tmf_vpidx = ISP_GET_VPIDX(isp, chan);
584 			tmf.tmf_lun[1] = fct->lun & 0xff;
585 			if (fct->lun >= 256) {
586 				tmf.tmf_lun[0] = 0x40 | (fct->lun >> 8);
587 			}
588 			switch (fct->action) {
589 			case IPT_CLEAR_ACA:
590 				tmf.tmf_flags = ISP24XX_TMF_CLEAR_ACA;
591 				break;
592 			case IPT_TARGET_RESET:
593 				tmf.tmf_flags = ISP24XX_TMF_TARGET_RESET;
594 				needmarker = 1;
595 				break;
596 			case IPT_LUN_RESET:
597 				tmf.tmf_flags = ISP24XX_TMF_LUN_RESET;
598 				needmarker = 1;
599 				break;
600 			case IPT_CLEAR_TASK_SET:
601 				tmf.tmf_flags = ISP24XX_TMF_CLEAR_TASK_SET;
602 				needmarker = 1;
603 				break;
604 			case IPT_ABORT_TASK_SET:
605 				tmf.tmf_flags = ISP24XX_TMF_ABORT_TASK_SET;
606 				needmarker = 1;
607 				break;
608 			default:
609 				retval = EINVAL;
610 				break;
611 			}
612 			if (retval) {
613 				ISP_UNLOCK(isp);
614 				break;
615 			}
616 
617 			/* Prepare space for response in memory */
618 			memset(resp, 0xff, sizeof(resp));
619 			tmf.tmf_handle = isp_allocate_handle(isp, resp,
620 			    ISP_HANDLE_CTRL);
621 			if (tmf.tmf_handle == 0) {
622 				isp_prt(isp, ISP_LOGERR,
623 				    "%s: TMF of Chan %d out of handles",
624 				    __func__, chan);
625 				ISP_UNLOCK(isp);
626 				retval = ENOMEM;
627 				break;
628 			}
629 
630 			/* Send request and wait for response. */
631 			reqp = isp_getrqentry(isp);
632 			if (reqp == NULL) {
633 				isp_prt(isp, ISP_LOGERR,
634 				    "%s: TMF of Chan %d out of rqent",
635 				    __func__, chan);
636 				isp_destroy_handle(isp, tmf.tmf_handle);
637 				ISP_UNLOCK(isp);
638 				retval = EIO;
639 				break;
640 			}
641 			isp_put_24xx_tmf(isp, &tmf, (isp24xx_tmf_t *)reqp);
642 			if (isp->isp_dblev & ISP_LOGDEBUG1)
643 				isp_print_bytes(isp, "IOCB TMF", QENTRY_LEN, reqp);
644 			ISP_SYNC_REQUEST(isp);
645 			if (msleep(resp, &isp->isp_lock, 0, "TMF", 5*hz) == EWOULDBLOCK) {
646 				isp_prt(isp, ISP_LOGERR,
647 				    "%s: TMF of Chan %d timed out",
648 				    __func__, chan);
649 				isp_destroy_handle(isp, tmf.tmf_handle);
650 				ISP_UNLOCK(isp);
651 				retval = EIO;
652 				break;
653 			}
654 			if (isp->isp_dblev & ISP_LOGDEBUG1)
655 				isp_print_bytes(isp, "IOCB TMF response", QENTRY_LEN, resp);
656 			isp_get_24xx_response(isp, (isp24xx_statusreq_t *)resp, &sp);
657 
658 			if (sp.req_completion_status != 0)
659 				retval = EIO;
660 			else if (needmarker)
661 				fcp->sendmarker = 1;
662 		} else {
663 			MBSINIT(&mbs, 0, MBLOGALL, 0);
664 			if (ISP_CAP_2KLOGIN(isp) == 0) {
665 				nphdl <<= 8;
666 			}
667 			switch (fct->action) {
668 			case IPT_CLEAR_ACA:
669 				mbs.param[0] = MBOX_CLEAR_ACA;
670 				mbs.param[1] = nphdl;
671 				mbs.param[2] = fct->lun;
672 				break;
673 			case IPT_TARGET_RESET:
674 				mbs.param[0] = MBOX_TARGET_RESET;
675 				mbs.param[1] = nphdl;
676 				needmarker = 1;
677 				break;
678 			case IPT_LUN_RESET:
679 				mbs.param[0] = MBOX_LUN_RESET;
680 				mbs.param[1] = nphdl;
681 				mbs.param[2] = fct->lun;
682 				needmarker = 1;
683 				break;
684 			case IPT_CLEAR_TASK_SET:
685 				mbs.param[0] = MBOX_CLEAR_TASK_SET;
686 				mbs.param[1] = nphdl;
687 				mbs.param[2] = fct->lun;
688 				needmarker = 1;
689 				break;
690 			case IPT_ABORT_TASK_SET:
691 				mbs.param[0] = MBOX_ABORT_TASK_SET;
692 				mbs.param[1] = nphdl;
693 				mbs.param[2] = fct->lun;
694 				needmarker = 1;
695 				break;
696 			default:
697 				retval = EINVAL;
698 				break;
699 			}
700 			if (retval == 0) {
701 				if (needmarker) {
702 					FCPARAM(isp, chan)->sendmarker = 1;
703 				}
704 				retval = isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs);
705 				if (retval) {
706 					retval = EIO;
707 				}
708 			}
709 		}
710 		ISP_UNLOCK(isp);
711 		break;
712 	}
713 	default:
714 		break;
715 	}
716 	return (retval);
717 }
718 
719 /*
720  * Local Inlines
721  */
722 
723 static ISP_INLINE int isp_get_pcmd(ispsoftc_t *, union ccb *);
724 static ISP_INLINE void isp_free_pcmd(ispsoftc_t *, union ccb *);
725 
726 static ISP_INLINE int
727 isp_get_pcmd(ispsoftc_t *isp, union ccb *ccb)
728 {
729 	ISP_PCMD(ccb) = isp->isp_osinfo.pcmd_free;
730 	if (ISP_PCMD(ccb) == NULL) {
731 		return (-1);
732 	}
733 	isp->isp_osinfo.pcmd_free = ((struct isp_pcmd *)ISP_PCMD(ccb))->next;
734 	return (0);
735 }
736 
737 static ISP_INLINE void
738 isp_free_pcmd(ispsoftc_t *isp, union ccb *ccb)
739 {
740 	if (ISP_PCMD(ccb)) {
741 #ifdef	ISP_TARGET_MODE
742 		PISP_PCMD(ccb)->datalen = 0;
743 #endif
744 		PISP_PCMD(ccb)->next = isp->isp_osinfo.pcmd_free;
745 		isp->isp_osinfo.pcmd_free = ISP_PCMD(ccb);
746 		ISP_PCMD(ccb) = NULL;
747 	}
748 }
749 
750 /*
751  * Put the target mode functions here, because some are inlines
752  */
753 #ifdef	ISP_TARGET_MODE
754 static ISP_INLINE tstate_t *get_lun_statep(ispsoftc_t *, int, lun_id_t);
755 static atio_private_data_t *isp_get_atpd(ispsoftc_t *, int, uint32_t);
756 static atio_private_data_t *isp_find_atpd(ispsoftc_t *, int, uint32_t);
757 static void isp_put_atpd(ispsoftc_t *, int, atio_private_data_t *);
758 static inot_private_data_t *isp_get_ntpd(ispsoftc_t *, int);
759 static inot_private_data_t *isp_find_ntpd(ispsoftc_t *, int, uint32_t, uint32_t);
760 static void isp_put_ntpd(ispsoftc_t *, int, inot_private_data_t *);
761 static cam_status create_lun_state(ispsoftc_t *, int, struct cam_path *, tstate_t **);
762 static void destroy_lun_state(ispsoftc_t *, int, tstate_t *);
763 static void isp_enable_lun(ispsoftc_t *, union ccb *);
764 static void isp_disable_lun(ispsoftc_t *, union ccb *);
765 static timeout_t isp_refire_putback_atio;
766 static timeout_t isp_refire_notify_ack;
767 static void isp_complete_ctio(union ccb *);
768 static void isp_target_putback_atio(union ccb *);
769 enum Start_Ctio_How { FROM_CAM, FROM_TIMER, FROM_SRR, FROM_CTIO_DONE };
770 static void isp_target_start_ctio(ispsoftc_t *, union ccb *, enum Start_Ctio_How);
771 static void isp_handle_platform_atio2(ispsoftc_t *, at2_entry_t *);
772 static void isp_handle_platform_atio7(ispsoftc_t *, at7_entry_t *);
773 static void isp_handle_platform_ctio(ispsoftc_t *, void *);
774 static int isp_handle_platform_target_notify_ack(ispsoftc_t *, isp_notify_t *, uint32_t rsp);
775 static void isp_handle_platform_target_tmf(ispsoftc_t *, isp_notify_t *);
776 static void isp_target_mark_aborted_early(ispsoftc_t *, int chan, tstate_t *, uint32_t);
777 
778 static ISP_INLINE tstate_t *
779 get_lun_statep(ispsoftc_t *isp, int bus, lun_id_t lun)
780 {
781 	tstate_t *tptr = NULL;
782 	struct tslist *lhp;
783 
784 	if (bus < isp->isp_nchan) {
785 		ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
786 		SLIST_FOREACH(tptr, lhp, next) {
787 			if (tptr->ts_lun == lun)
788 				return (tptr);
789 		}
790 	}
791 	return (NULL);
792 }
793 
794 static int
795 isp_atio_restart(ispsoftc_t *isp, int bus, tstate_t *tptr)
796 {
797 	inot_private_data_t *ntp;
798 	struct ntpdlist rq;
799 
800 	if (STAILQ_EMPTY(&tptr->restart_queue))
801 		return (0);
802 	STAILQ_INIT(&rq);
803 	STAILQ_CONCAT(&rq, &tptr->restart_queue);
804 	while ((ntp = STAILQ_FIRST(&rq)) != NULL) {
805 		STAILQ_REMOVE_HEAD(&rq, next);
806 		if (IS_24XX(isp)) {
807 			isp_prt(isp, ISP_LOGTDEBUG0,
808 			    "%s: restarting resrc deprived %x", __func__,
809 			    ((at7_entry_t *)ntp->data)->at_rxid);
810 			isp_handle_platform_atio7(isp, (at7_entry_t *) ntp->data);
811 		} else {
812 			isp_prt(isp, ISP_LOGTDEBUG0,
813 			    "%s: restarting resrc deprived %x", __func__,
814 			    ((at2_entry_t *)ntp->data)->at_rxid);
815 			isp_handle_platform_atio2(isp, (at2_entry_t *) ntp->data);
816 		}
817 		isp_put_ntpd(isp, bus, ntp);
818 		if (!STAILQ_EMPTY(&tptr->restart_queue))
819 			break;
820 	}
821 	if (!STAILQ_EMPTY(&rq)) {
822 		STAILQ_CONCAT(&rq, &tptr->restart_queue);
823 		STAILQ_CONCAT(&tptr->restart_queue, &rq);
824 	}
825 	return (!STAILQ_EMPTY(&tptr->restart_queue));
826 }
827 
828 static void
829 isp_tmcmd_restart(ispsoftc_t *isp)
830 {
831 	tstate_t *tptr;
832 	union ccb *ccb;
833 	struct tslist *lhp;
834 	struct isp_ccbq *waitq;
835 	int bus, i;
836 
837 	for (bus = 0; bus < isp->isp_nchan; bus++) {
838 		for (i = 0; i < LUN_HASH_SIZE; i++) {
839 			ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
840 			SLIST_FOREACH(tptr, lhp, next)
841 				isp_atio_restart(isp, bus, tptr);
842 		}
843 
844 		/*
845 		 * We only need to do this once per channel.
846 		 */
847 		ISP_GET_PC_ADDR(isp, bus, waitq, waitq);
848 		ccb = (union ccb *)TAILQ_FIRST(waitq);
849 		if (ccb != NULL) {
850 			TAILQ_REMOVE(waitq, &ccb->ccb_h, sim_links.tqe);
851 			isp_target_start_ctio(isp, ccb, FROM_TIMER);
852 		}
853 	}
854 }
855 
856 static atio_private_data_t *
857 isp_get_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
858 {
859 	struct atpdlist *atfree;
860 	struct atpdlist *atused;
861 	atio_private_data_t *atp;
862 
863 	ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
864 	atp = LIST_FIRST(atfree);
865 	if (atp) {
866 		LIST_REMOVE(atp, next);
867 		atp->tag = tag;
868 		ISP_GET_PC(isp, chan, atused, atused);
869 		LIST_INSERT_HEAD(&atused[ATPDPHASH(tag)], atp, next);
870 	}
871 	return (atp);
872 }
873 
874 static atio_private_data_t *
875 isp_find_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
876 {
877 	struct atpdlist *atused;
878 	atio_private_data_t *atp;
879 
880 	ISP_GET_PC(isp, chan, atused, atused);
881 	LIST_FOREACH(atp, &atused[ATPDPHASH(tag)], next) {
882 		if (atp->tag == tag)
883 			return (atp);
884 	}
885 	return (NULL);
886 }
887 
888 static void
889 isp_put_atpd(ispsoftc_t *isp, int chan, atio_private_data_t *atp)
890 {
891 	struct atpdlist *atfree;
892 
893 	if (atp->ests) {
894 		isp_put_ecmd(isp, atp->ests);
895 	}
896 	LIST_REMOVE(atp, next);
897 	memset(atp, 0, sizeof (*atp));
898 	ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
899 	LIST_INSERT_HEAD(atfree, atp, next);
900 }
901 
902 static void
903 isp_dump_atpd(ispsoftc_t *isp, int chan)
904 {
905 	atio_private_data_t *atp, *atpool;
906 	const char *states[8] = { "Free", "ATIO", "CAM", "CTIO", "LAST_CTIO", "PDON", "?6", "7" };
907 
908 	ISP_GET_PC(isp, chan, atpool, atpool);
909 	for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
910 		if (atp->state == ATPD_STATE_FREE)
911 			continue;
912 		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",
913 		    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]);
914 	}
915 }
916 
917 static inot_private_data_t *
918 isp_get_ntpd(ispsoftc_t *isp, int chan)
919 {
920 	struct ntpdlist *ntfree;
921 	inot_private_data_t *ntp;
922 
923 	ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
924 	ntp = STAILQ_FIRST(ntfree);
925 	if (ntp)
926 		STAILQ_REMOVE_HEAD(ntfree, next);
927 	return (ntp);
928 }
929 
930 static inot_private_data_t *
931 isp_find_ntpd(ispsoftc_t *isp, int chan, uint32_t tag_id, uint32_t seq_id)
932 {
933 	inot_private_data_t *ntp, *ntp2;
934 
935 	ISP_GET_PC(isp, chan, ntpool, ntp);
936 	ISP_GET_PC_ADDR(isp, chan, ntpool[ATPDPSIZE], ntp2);
937 	for (; ntp < ntp2; ntp++) {
938 		if (ntp->tag_id == tag_id && ntp->seq_id == seq_id)
939 			return (ntp);
940 	}
941 	return (NULL);
942 }
943 
944 static void
945 isp_put_ntpd(ispsoftc_t *isp, int chan, inot_private_data_t *ntp)
946 {
947 	struct ntpdlist *ntfree;
948 
949 	ntp->tag_id = ntp->seq_id = 0;
950 	ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
951 	STAILQ_INSERT_HEAD(ntfree, ntp, next);
952 }
953 
954 static cam_status
955 create_lun_state(ispsoftc_t *isp, int bus, struct cam_path *path, tstate_t **rslt)
956 {
957 	lun_id_t lun;
958 	struct tslist *lhp;
959 	tstate_t *tptr;
960 
961 	lun = xpt_path_lun_id(path);
962 	if (lun != CAM_LUN_WILDCARD) {
963 		if (ISP_MAX_LUNS(isp) > 0 && lun >= ISP_MAX_LUNS(isp)) {
964 			return (CAM_LUN_INVALID);
965 		}
966 	}
967 	tptr = malloc(sizeof (tstate_t), M_DEVBUF, M_NOWAIT|M_ZERO);
968 	if (tptr == NULL) {
969 		return (CAM_RESRC_UNAVAIL);
970 	}
971 	tptr->ts_lun = lun;
972 	SLIST_INIT(&tptr->atios);
973 	SLIST_INIT(&tptr->inots);
974 	ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
975 	SLIST_INSERT_HEAD(lhp, tptr, next);
976 	*rslt = tptr;
977 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, path, "created tstate\n");
978 	return (CAM_REQ_CMP);
979 }
980 
981 static void
982 destroy_lun_state(ispsoftc_t *isp, int bus, tstate_t *tptr)
983 {
984 	union ccb *ccb;
985 	struct tslist *lhp;
986 	inot_private_data_t *ntp;
987 
988 	while ((ccb = (union ccb *)SLIST_FIRST(&tptr->atios)) != NULL) {
989 		SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
990 		ccb->ccb_h.status = CAM_REQ_ABORTED;
991 		xpt_done(ccb);
992 	};
993 	while ((ccb = (union ccb *)SLIST_FIRST(&tptr->inots)) != NULL) {
994 		SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
995 		ccb->ccb_h.status = CAM_REQ_ABORTED;
996 		xpt_done(ccb);
997 	}
998 	while ((ntp = STAILQ_FIRST(&tptr->restart_queue)) != NULL) {
999 		isp_endcmd(isp, ntp->data, NIL_HANDLE, bus, SCSI_STATUS_BUSY, 0);
1000 		STAILQ_REMOVE_HEAD(&tptr->restart_queue, next);
1001 		isp_put_ntpd(isp, bus, ntp);
1002 	}
1003 	ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(tptr->ts_lun)], lhp);
1004 	SLIST_REMOVE(lhp, tptr, tstate, next);
1005 	free(tptr, M_DEVBUF);
1006 }
1007 
1008 static void
1009 isp_enable_lun(ispsoftc_t *isp, union ccb *ccb)
1010 {
1011 	tstate_t *tptr;
1012 	int bus;
1013 	target_id_t target;
1014 	lun_id_t lun;
1015 
1016 	if (!IS_FC(isp) || !ISP_CAP_TMODE(isp) || !ISP_CAP_SCCFW(isp)) {
1017 		xpt_print(ccb->ccb_h.path, "Target mode is not supported\n");
1018 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1019 		xpt_done(ccb);
1020 		return;
1021 	}
1022 
1023 	/*
1024 	 * We only support either target and lun both wildcard
1025 	 * or target and lun both non-wildcard.
1026 	 */
1027 	bus = XS_CHANNEL(ccb);
1028 	target = ccb->ccb_h.target_id;
1029 	lun = ccb->ccb_h.target_lun;
1030 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
1031 	    "enabling lun %jx\n", (uintmax_t)lun);
1032 	if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
1033 		ccb->ccb_h.status = CAM_LUN_INVALID;
1034 		xpt_done(ccb);
1035 		return;
1036 	}
1037 
1038 	/* Create the state pointer. It should not already exist. */
1039 	tptr = get_lun_statep(isp, bus, lun);
1040 	if (tptr) {
1041 		ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
1042 		xpt_done(ccb);
1043 		return;
1044 	}
1045 	ccb->ccb_h.status = create_lun_state(isp, bus, ccb->ccb_h.path, &tptr);
1046 	if (ccb->ccb_h.status != CAM_REQ_CMP) {
1047 		xpt_done(ccb);
1048 		return;
1049 	}
1050 
1051 	ccb->ccb_h.status = CAM_REQ_CMP;
1052 	xpt_done(ccb);
1053 }
1054 
1055 static void
1056 isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
1057 {
1058 	tstate_t *tptr = NULL;
1059 	int bus;
1060 	target_id_t target;
1061 	lun_id_t lun;
1062 
1063 	bus = XS_CHANNEL(ccb);
1064 	target = ccb->ccb_h.target_id;
1065 	lun = ccb->ccb_h.target_lun;
1066 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
1067 	    "disabling lun %jx\n", (uintmax_t)lun);
1068 	if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
1069 		ccb->ccb_h.status = CAM_LUN_INVALID;
1070 		xpt_done(ccb);
1071 		return;
1072 	}
1073 
1074 	/* Find the state pointer. */
1075 	if ((tptr = get_lun_statep(isp, bus, lun)) == NULL) {
1076 		ccb->ccb_h.status = CAM_PATH_INVALID;
1077 		xpt_done(ccb);
1078 		return;
1079 	}
1080 
1081 	destroy_lun_state(isp, bus, tptr);
1082 	ccb->ccb_h.status = CAM_REQ_CMP;
1083 	xpt_done(ccb);
1084 }
1085 
1086 static void
1087 isp_target_start_ctio(ispsoftc_t *isp, union ccb *ccb, enum Start_Ctio_How how)
1088 {
1089 	int fctape, sendstatus, resid;
1090 	fcparam *fcp;
1091 	atio_private_data_t *atp;
1092 	struct ccb_scsiio *cso;
1093 	struct isp_ccbq *waitq;
1094 	uint32_t dmaresult, handle, xfrlen, sense_length, tmp;
1095 	uint8_t local[QENTRY_LEN];
1096 
1097 	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,
1098 	    (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0, ((ccb->ccb_h.flags & CAM_SEND_SENSE)? ccb->csio.sense_len : 0));
1099 
1100 	ISP_GET_PC_ADDR(isp, XS_CHANNEL(ccb), waitq, waitq);
1101 	switch (how) {
1102 	case FROM_CAM:
1103 		/*
1104 		 * Insert at the tail of the list, if any, waiting CTIO CCBs
1105 		 */
1106 		TAILQ_INSERT_TAIL(waitq, &ccb->ccb_h, sim_links.tqe);
1107 		break;
1108 	case FROM_TIMER:
1109 	case FROM_SRR:
1110 	case FROM_CTIO_DONE:
1111 		TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1112 		break;
1113 	}
1114 
1115 	while ((ccb = (union ccb *) TAILQ_FIRST(waitq)) != NULL) {
1116 		TAILQ_REMOVE(waitq, &ccb->ccb_h, sim_links.tqe);
1117 
1118 		cso = &ccb->csio;
1119 		xfrlen = cso->dxfer_len;
1120 		if (xfrlen == 0) {
1121 			if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
1122 				ISP_PATH_PRT(isp, ISP_LOGERR, ccb->ccb_h.path, "a data transfer length of zero but no status to send is wrong\n");
1123 				ccb->ccb_h.status = CAM_REQ_INVALID;
1124 				xpt_done(ccb);
1125 				continue;
1126 			}
1127 		}
1128 
1129 		atp = isp_find_atpd(isp, XS_CHANNEL(ccb), cso->tag_id);
1130 		if (atp == NULL) {
1131 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] cannot find private data adjunct in %s", __func__, cso->tag_id, __func__);
1132 			isp_dump_atpd(isp, XS_CHANNEL(ccb));
1133 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1134 			xpt_done(ccb);
1135 			continue;
1136 		}
1137 
1138 		/*
1139 		 * Is this command a dead duck?
1140 		 */
1141 		if (atp->dead) {
1142 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] not sending a CTIO for a dead command", __func__, cso->tag_id);
1143 			ccb->ccb_h.status = CAM_REQ_ABORTED;
1144 			xpt_done(ccb);
1145 			continue;
1146 		}
1147 
1148 		/*
1149 		 * Check to make sure we're still in target mode.
1150 		 */
1151 		fcp = FCPARAM(isp, XS_CHANNEL(ccb));
1152 		if ((fcp->role & ISP_ROLE_TARGET) == 0) {
1153 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] stopping sending a CTIO because we're no longer in target mode", __func__, cso->tag_id);
1154 			ccb->ccb_h.status = CAM_PROVIDE_FAIL;
1155 			xpt_done(ccb);
1156 			continue;
1157 		}
1158 
1159 		/*
1160 		 * We're only handling ATPD_CCB_OUTSTANDING outstanding CCB at a time (one of which
1161 		 * could be split into two CTIOs to split data and status).
1162 		 */
1163 		if (atp->ctcnt >= ATPD_CCB_OUTSTANDING) {
1164 			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);
1165 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1166 			break;
1167 		}
1168 
1169 		/*
1170 		 * Does the initiator expect FC-Tape style responses?
1171 		 */
1172 		if ((atp->word3 & PRLI_WD3_RETRY) && fcp->fctape_enabled) {
1173 			fctape = 1;
1174 		} else {
1175 			fctape = 0;
1176 		}
1177 
1178 		/*
1179 		 * If we already did the data xfer portion of a CTIO that sends data
1180 		 * and status, don't do it again and do the status portion now.
1181 		 */
1182 		if (atp->sendst) {
1183 			isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] now sending synthesized status orig_dl=%u xfered=%u bit=%u",
1184 			    cso->tag_id, atp->orig_datalen, atp->bytes_xfered, atp->bytes_in_transit);
1185 			xfrlen = 0;	/* we already did the data transfer */
1186 			atp->sendst = 0;
1187 		}
1188 		if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
1189 			sendstatus = 1;
1190 		} else {
1191 			sendstatus = 0;
1192 		}
1193 
1194 		if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
1195 			KASSERT((sendstatus != 0), ("how can you have CAM_SEND_SENSE w/o CAM_SEND_STATUS?"));
1196 			/*
1197 			 * Sense length is not the entire sense data structure size. Periph
1198 			 * drivers don't seem to be setting sense_len to reflect the actual
1199 			 * size. We'll peek inside to get the right amount.
1200 			 */
1201 			sense_length = cso->sense_len;
1202 
1203 			/*
1204 			 * This 'cannot' happen
1205 			 */
1206 			if (sense_length > (XCMD_SIZE - MIN_FCP_RESPONSE_SIZE)) {
1207 				sense_length = XCMD_SIZE - MIN_FCP_RESPONSE_SIZE;
1208 			}
1209 		} else {
1210 			sense_length = 0;
1211 		}
1212 
1213 		memset(local, 0, QENTRY_LEN);
1214 
1215 		/*
1216 		 * Check for overflow
1217 		 */
1218 		tmp = atp->bytes_xfered + atp->bytes_in_transit;
1219 		if (xfrlen > 0 && tmp > atp->orig_datalen) {
1220 			isp_prt(isp, ISP_LOGERR,
1221 			    "%s: [0x%x] data overflow by %u bytes", __func__,
1222 			    cso->tag_id, tmp + xfrlen - atp->orig_datalen);
1223 			ccb->ccb_h.status = CAM_DATA_RUN_ERR;
1224 			xpt_done(ccb);
1225 			continue;
1226 		}
1227 		if (xfrlen > atp->orig_datalen - tmp) {
1228 			xfrlen = atp->orig_datalen - tmp;
1229 			if (xfrlen == 0 && !sendstatus) {
1230 				cso->resid = cso->dxfer_len;
1231 				ccb->ccb_h.status = CAM_REQ_CMP;
1232 				xpt_done(ccb);
1233 				continue;
1234 			}
1235 		}
1236 
1237 		if (IS_24XX(isp)) {
1238 			ct7_entry_t *cto = (ct7_entry_t *) local;
1239 
1240 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
1241 			cto->ct_header.rqs_entry_count = 1;
1242 			cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
1243 			ATPD_SET_SEQNO(cto, atp);
1244 			cto->ct_nphdl = atp->nphdl;
1245 			cto->ct_rxid = atp->tag;
1246 			cto->ct_iid_lo = atp->sid;
1247 			cto->ct_iid_hi = atp->sid >> 16;
1248 			cto->ct_oxid = atp->oxid;
1249 			cto->ct_vpidx = ISP_GET_VPIDX(isp, XS_CHANNEL(ccb));
1250 			cto->ct_timeout = XS_TIME(ccb);
1251 			cto->ct_flags = atp->tattr << CT7_TASK_ATTR_SHIFT;
1252 
1253 			/*
1254 			 * Mode 1, status, no data. Only possible when we are sending status, have
1255 			 * no data to transfer, and any sense data can fit into a ct7_entry_t.
1256 			 *
1257 			 * Mode 2, status, no data. We have to use this in the case that
1258 			 * the sense data won't fit into a ct7_entry_t.
1259 			 *
1260 			 */
1261 			if (sendstatus && xfrlen == 0) {
1262 				cto->ct_flags |= CT7_SENDSTATUS | CT7_NO_DATA;
1263 				resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
1264 				if (sense_length <= MAXRESPLEN_24XX) {
1265 					cto->ct_flags |= CT7_FLAG_MODE1;
1266 					cto->ct_scsi_status = cso->scsi_status;
1267 					if (resid < 0) {
1268 						cto->ct_resid = -resid;
1269 						cto->ct_scsi_status |= (FCP_RESID_OVERFLOW << 8);
1270 					} else if (resid > 0) {
1271 						cto->ct_resid = resid;
1272 						cto->ct_scsi_status |= (FCP_RESID_UNDERFLOW << 8);
1273 					}
1274 					if (fctape) {
1275 						cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1276 					}
1277 					if (sense_length) {
1278 						cto->ct_scsi_status |= (FCP_SNSLEN_VALID << 8);
1279 						cto->rsp.m1.ct_resplen = cto->ct_senselen = sense_length;
1280 						memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
1281 					}
1282 				} else {
1283 					bus_addr_t addr;
1284 					char buf[XCMD_SIZE];
1285 					fcp_rsp_iu_t *rp;
1286 
1287 					if (atp->ests == NULL) {
1288 						atp->ests = isp_get_ecmd(isp);
1289 						if (atp->ests == NULL) {
1290 							TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1291 							break;
1292 						}
1293 					}
1294 					memset(buf, 0, sizeof (buf));
1295 					rp = (fcp_rsp_iu_t *)buf;
1296 					if (fctape) {
1297 						cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1298 						rp->fcp_rsp_bits |= FCP_CONF_REQ;
1299 					}
1300 					cto->ct_flags |= CT7_FLAG_MODE2;
1301 	        			rp->fcp_rsp_scsi_status = cso->scsi_status;
1302 					if (resid < 0) {
1303 						rp->fcp_rsp_resid = -resid;
1304 						rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
1305 					} else if (resid > 0) {
1306 						rp->fcp_rsp_resid = resid;
1307 						rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
1308 					}
1309 					if (sense_length) {
1310 	        				rp->fcp_rsp_snslen = sense_length;
1311 						cto->ct_senselen = sense_length;
1312 						rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
1313 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1314 						memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
1315 					} else {
1316 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1317 					}
1318 					if (isp->isp_dblev & ISP_LOGTDEBUG1) {
1319 						isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
1320 					}
1321 					addr = isp->isp_osinfo.ecmd_dma;
1322 					addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
1323 					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,
1324 					    (uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
1325 					cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
1326 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_base = DMA_LO32(addr);
1327 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_basehi = DMA_HI32(addr);
1328 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1329 				}
1330 				if (sense_length) {
1331 					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__,
1332 					    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,
1333 					    cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
1334 				} else {
1335 					isp_prt(isp, ISP_LOGDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __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);
1337 				}
1338 				atp->state = ATPD_STATE_LAST_CTIO;
1339 			}
1340 
1341 			/*
1342 			 * Mode 0 data transfers, *possibly* with status.
1343 			 */
1344 			if (xfrlen != 0) {
1345 				cto->ct_flags |= CT7_FLAG_MODE0;
1346 				if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1347 					cto->ct_flags |= CT7_DATA_IN;
1348 				} else {
1349 					cto->ct_flags |= CT7_DATA_OUT;
1350 				}
1351 
1352 				cto->rsp.m0.reloff = atp->bytes_xfered + atp->bytes_in_transit;
1353 				cto->rsp.m0.ct_xfrlen = xfrlen;
1354 
1355 #ifdef	DEBUG
1356 				if (ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame && xfrlen > ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame) {
1357 					isp_prt(isp, ISP_LOGWARN, "%s: truncating data frame with xfrlen %d to %d", __func__, xfrlen, xfrlen - (xfrlen >> 2));
1358 					ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame = 0;
1359 					cto->rsp.m0.ct_xfrlen -= xfrlen >> 2;
1360 				}
1361 #endif
1362 				if (sendstatus) {
1363 					resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
1364 					if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /* && fctape == 0 */) {
1365 						cto->ct_flags |= CT7_SENDSTATUS;
1366 						atp->state = ATPD_STATE_LAST_CTIO;
1367 						if (fctape) {
1368 							cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1369 						}
1370 					} else {
1371 						atp->sendst = 1;	/* send status later */
1372 						cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
1373 						atp->state = ATPD_STATE_CTIO;
1374 					}
1375 				} else {
1376 					atp->state = ATPD_STATE_CTIO;
1377 				}
1378 				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__,
1379 				    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, xfrlen, atp->bytes_xfered);
1380 			}
1381 		} else {
1382 			ct2_entry_t *cto = (ct2_entry_t *) local;
1383 
1384 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
1385 			cto->ct_header.rqs_entry_count = 1;
1386 			cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
1387 			ATPD_SET_SEQNO(cto, atp);
1388 			if (ISP_CAP_2KLOGIN(isp)) {
1389 				((ct2e_entry_t *)cto)->ct_iid = atp->nphdl;
1390 			} else {
1391 				cto->ct_iid = atp->nphdl;
1392 				if (ISP_CAP_SCCFW(isp) == 0) {
1393 					cto->ct_lun = ccb->ccb_h.target_lun;
1394 				}
1395 			}
1396 			cto->ct_timeout = XS_TIME(ccb);
1397 			cto->ct_rxid = cso->tag_id;
1398 
1399 			/*
1400 			 * Mode 1, status, no data. Only possible when we are sending status, have
1401 			 * no data to transfer, and the sense length can fit in the ct7_entry.
1402 			 *
1403 			 * Mode 2, status, no data. We have to use this in the case the response
1404 			 * length won't fit into a ct2_entry_t.
1405 			 *
1406 			 * We'll fill out this structure with information as if this were a
1407 			 * Mode 1. The hardware layer will create the Mode 2 FCP RSP IU as
1408 			 * needed based upon this.
1409 			 */
1410 			if (sendstatus && xfrlen == 0) {
1411 				cto->ct_flags |= CT2_SENDSTATUS | CT2_NO_DATA;
1412 				resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
1413 				if (sense_length <= MAXRESPLEN) {
1414 					if (resid < 0) {
1415 						cto->ct_resid = -resid;
1416 					} else if (resid > 0) {
1417 						cto->ct_resid = resid;
1418 					}
1419 					cto->ct_flags |= CT2_FLAG_MODE1;
1420 					cto->rsp.m1.ct_scsi_status = cso->scsi_status;
1421 					if (resid < 0) {
1422 						cto->rsp.m1.ct_scsi_status |= CT2_DATA_OVER;
1423 					} else if (resid > 0) {
1424 						cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
1425 					}
1426 					if (fctape) {
1427 						cto->ct_flags |= CT2_CONFIRM;
1428 					}
1429 					if (sense_length) {
1430 						cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
1431 						cto->rsp.m1.ct_resplen = cto->rsp.m1.ct_senselen = sense_length;
1432 						memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
1433 					}
1434 				} else {
1435 					bus_addr_t addr;
1436 					char buf[XCMD_SIZE];
1437 					fcp_rsp_iu_t *rp;
1438 
1439 					if (atp->ests == NULL) {
1440 						atp->ests = isp_get_ecmd(isp);
1441 						if (atp->ests == NULL) {
1442 							TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1443 							break;
1444 						}
1445 					}
1446 					memset(buf, 0, sizeof (buf));
1447 					rp = (fcp_rsp_iu_t *)buf;
1448 					if (fctape) {
1449 						cto->ct_flags |= CT2_CONFIRM;
1450 						rp->fcp_rsp_bits |= FCP_CONF_REQ;
1451 					}
1452 					cto->ct_flags |= CT2_FLAG_MODE2;
1453 	        			rp->fcp_rsp_scsi_status = cso->scsi_status;
1454 					if (resid < 0) {
1455 						rp->fcp_rsp_resid = -resid;
1456 						rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
1457 					} else if (resid > 0) {
1458 						rp->fcp_rsp_resid = resid;
1459 						rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
1460 					}
1461 					if (sense_length) {
1462 	        				rp->fcp_rsp_snslen = sense_length;
1463 						rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
1464 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1465 						memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
1466 					} else {
1467 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1468 					}
1469 					if (isp->isp_dblev & ISP_LOGTDEBUG1) {
1470 						isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
1471 					}
1472 					addr = isp->isp_osinfo.ecmd_dma;
1473 					addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
1474 					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,
1475 					    (uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
1476 					cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
1477 					cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_base = DMA_LO32(addr);
1478 					cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1479 				}
1480 				if (sense_length) {
1481 					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__,
1482 					    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid,
1483 					    cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
1484 				} else {
1485 					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,
1486 					    ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid);
1487 				}
1488 				atp->state = ATPD_STATE_LAST_CTIO;
1489 			}
1490 
1491 			if (xfrlen != 0) {
1492 				cto->ct_flags |= CT2_FLAG_MODE0;
1493 				if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1494 					cto->ct_flags |= CT2_DATA_IN;
1495 				} else {
1496 					cto->ct_flags |= CT2_DATA_OUT;
1497 				}
1498 
1499 				cto->ct_reloff = atp->bytes_xfered + atp->bytes_in_transit;
1500 				cto->rsp.m0.ct_xfrlen = xfrlen;
1501 
1502 				if (sendstatus) {
1503 					resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
1504 					if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /*&& fctape == 0*/) {
1505 						cto->ct_flags |= CT2_SENDSTATUS;
1506 						atp->state = ATPD_STATE_LAST_CTIO;
1507 						if (fctape) {
1508 							cto->ct_flags |= CT2_CONFIRM;
1509 						}
1510 					} else {
1511 						atp->sendst = 1;	/* send status later */
1512 						cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
1513 						atp->state = ATPD_STATE_CTIO;
1514 					}
1515 				} else {
1516 					atp->state = ATPD_STATE_CTIO;
1517 				}
1518 			}
1519 			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,
1520 			    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);
1521 		}
1522 
1523 		if (isp_get_pcmd(isp, ccb)) {
1524 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "out of PCMDs\n");
1525 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1526 			break;
1527 		}
1528 		handle = isp_allocate_handle(isp, ccb, ISP_HANDLE_TARGET);
1529 		if (handle == 0) {
1530 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "No XFLIST pointers for %s\n", __func__);
1531 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1532 			isp_free_pcmd(isp, ccb);
1533 			break;
1534 		}
1535 		atp->bytes_in_transit += xfrlen;
1536 		PISP_PCMD(ccb)->datalen = xfrlen;
1537 
1538 
1539 		/*
1540 		 * Call the dma setup routines for this entry (and any subsequent
1541 		 * CTIOs) if there's data to move, and then tell the f/w it's got
1542 		 * new things to play with. As with isp_start's usage of DMA setup,
1543 		 * any swizzling is done in the machine dependent layer. Because
1544 		 * of this, we put the request onto the queue area first in native
1545 		 * format.
1546 		 */
1547 
1548 		if (IS_24XX(isp)) {
1549 			ct7_entry_t *cto = (ct7_entry_t *) local;
1550 			cto->ct_syshandle = handle;
1551 		} else {
1552 			ct2_entry_t *cto = (ct2_entry_t *) local;
1553 			cto->ct_syshandle = handle;
1554 		}
1555 
1556 		dmaresult = ISP_DMASETUP(isp, cso, (ispreq_t *) local);
1557 		if (dmaresult != CMD_QUEUED) {
1558 			isp_destroy_handle(isp, handle);
1559 			isp_free_pcmd(isp, ccb);
1560 			if (dmaresult == CMD_EAGAIN) {
1561 				TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, sim_links.tqe);
1562 				break;
1563 			}
1564 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1565 			xpt_done(ccb);
1566 			continue;
1567 		}
1568 		ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
1569 		if (xfrlen) {
1570 			ccb->ccb_h.spriv_field0 = atp->bytes_xfered;
1571 		} else {
1572 			ccb->ccb_h.spriv_field0 = ~0;
1573 		}
1574 		atp->ctcnt++;
1575 		atp->seqno++;
1576 	}
1577 }
1578 
1579 static void
1580 isp_refire_putback_atio(void *arg)
1581 {
1582 	union ccb *ccb = arg;
1583 
1584 	ISP_ASSERT_LOCKED((ispsoftc_t *)XS_ISP(ccb));
1585 	isp_target_putback_atio(ccb);
1586 }
1587 
1588 static void
1589 isp_refire_notify_ack(void *arg)
1590 {
1591 	isp_tna_t *tp  = arg;
1592 	ispsoftc_t *isp = tp->isp;
1593 
1594 	ISP_ASSERT_LOCKED(isp);
1595 	if (isp_notify_ack(isp, tp->not)) {
1596 		callout_schedule(&tp->timer, 5);
1597 	} else {
1598 		free(tp, M_DEVBUF);
1599 	}
1600 }
1601 
1602 
1603 static void
1604 isp_target_putback_atio(union ccb *ccb)
1605 {
1606 	ispsoftc_t *isp = XS_ISP(ccb);
1607 	struct ccb_scsiio *cso = &ccb->csio;
1608 	at2_entry_t local, *at = &local;
1609 
1610 	ISP_MEMZERO(at, sizeof (at2_entry_t));
1611 	at->at_header.rqs_entry_type = RQSTYPE_ATIO2;
1612 	at->at_header.rqs_entry_count = 1;
1613 	if (ISP_CAP_SCCFW(isp)) {
1614 		at->at_scclun = (uint16_t) ccb->ccb_h.target_lun;
1615 	} else {
1616 		at->at_lun = (uint8_t) ccb->ccb_h.target_lun;
1617 	}
1618 	at->at_status = CT_OK;
1619 	at->at_rxid = cso->tag_id;
1620 	at->at_iid = cso->init_id;
1621 	if (isp_target_put_entry(isp, at)) {
1622 		callout_reset(&PISP_PCMD(ccb)->wdog, 10,
1623 		    isp_refire_putback_atio, ccb);
1624 	} else
1625 		isp_complete_ctio(ccb);
1626 }
1627 
1628 static void
1629 isp_complete_ctio(union ccb *ccb)
1630 {
1631 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1632 		ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1633 		xpt_done(ccb);
1634 	}
1635 }
1636 
1637 static void
1638 isp_handle_platform_atio2(ispsoftc_t *isp, at2_entry_t *aep)
1639 {
1640 	fcparam *fcp;
1641 	lun_id_t lun;
1642 	fcportdb_t *lp;
1643 	tstate_t *tptr;
1644 	struct ccb_accept_tio *atiop;
1645 	uint16_t nphdl;
1646 	atio_private_data_t *atp;
1647 	inot_private_data_t *ntp;
1648 
1649 	/*
1650 	 * The firmware status (except for the QLTM_SVALID bit)
1651 	 * indicates why this ATIO was sent to us.
1652 	 *
1653 	 * If QLTM_SVALID is set, the firmware has recommended Sense Data.
1654 	 */
1655 	if ((aep->at_status & ~QLTM_SVALID) != AT_CDB) {
1656 		isp_prt(isp, ISP_LOGWARN, "bogus atio (0x%x) leaked to platform", aep->at_status);
1657 		isp_endcmd(isp, aep, NIL_HANDLE, 0, SCSI_STATUS_BUSY, 0);
1658 		return;
1659 	}
1660 
1661 	fcp = FCPARAM(isp, 0);
1662 	if (ISP_CAP_SCCFW(isp)) {
1663 		lun = aep->at_scclun;
1664 	} else {
1665 		lun = aep->at_lun;
1666 	}
1667 	if (ISP_CAP_2KLOGIN(isp)) {
1668 		nphdl = ((at2e_entry_t *)aep)->at_iid;
1669 	} else {
1670 		nphdl = aep->at_iid;
1671 	}
1672 	tptr = get_lun_statep(isp, 0, lun);
1673 	if (tptr == NULL) {
1674 		tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
1675 		if (tptr == NULL) {
1676 			isp_prt(isp, ISP_LOGWARN, "%s: [0x%x] no state pointer for lun %jx or wildcard", __func__, aep->at_rxid, (uintmax_t)lun);
1677 			if (lun == 0) {
1678 				isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
1679 			} else {
1680 				isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
1681 			}
1682 			return;
1683 		}
1684 	}
1685 
1686 	/*
1687 	 * Start any commands pending resources first.
1688 	 */
1689 	if (isp_atio_restart(isp, 0, tptr))
1690 		goto noresrc;
1691 
1692 	atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
1693 	if (atiop == NULL) {
1694 		goto noresrc;
1695 	}
1696 
1697 	atp = isp_get_atpd(isp, 0, aep->at_rxid);
1698 	if (atp == NULL) {
1699 		goto noresrc;
1700 	}
1701 
1702 	atp->state = ATPD_STATE_ATIO;
1703 	SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1704 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
1705 	atiop->ccb_h.target_id = ISP_MAX_TARGETS(isp);
1706 	atiop->ccb_h.target_lun = lun;
1707 
1708 	/*
1709 	 * We don't get 'suggested' sense data as we do with SCSI cards.
1710 	 */
1711 	atiop->sense_len = 0;
1712 
1713 	/*
1714 	 * If we're not in the port database, add ourselves.
1715 	 */
1716 	if (IS_2100(isp))
1717 		atiop->init_id = nphdl;
1718 	else {
1719 		if (isp_find_pdb_by_handle(isp, 0, nphdl, &lp)) {
1720 			atiop->init_id = FC_PORTDB_TGT(isp, 0, lp);
1721 		} else {
1722 			isp_prt(isp, ISP_LOGTINFO, "%s: port %x isn't in PDB",
1723 			    __func__, nphdl);
1724 			isp_dump_portdb(isp, 0);
1725 			isp_endcmd(isp, aep, NIL_HANDLE, 0, ECMD_TERMINATE, 0);
1726 			return;
1727 		}
1728 	}
1729 	atiop->cdb_len = ATIO2_CDBLEN;
1730 	ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cdb, ATIO2_CDBLEN);
1731 	atiop->ccb_h.status = CAM_CDB_RECVD;
1732 	atiop->tag_id = atp->tag;
1733 	switch (aep->at_taskflags & ATIO2_TC_ATTR_MASK) {
1734 	case ATIO2_TC_ATTR_SIMPLEQ:
1735 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1736 		atiop->tag_action = MSG_SIMPLE_Q_TAG;
1737 		break;
1738 	case ATIO2_TC_ATTR_HEADOFQ:
1739 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1740 		atiop->tag_action = MSG_HEAD_OF_Q_TAG;
1741 		break;
1742 	case ATIO2_TC_ATTR_ORDERED:
1743 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1744 		atiop->tag_action = MSG_ORDERED_Q_TAG;
1745 		break;
1746 	case ATIO2_TC_ATTR_ACAQ:		/* ?? */
1747 	case ATIO2_TC_ATTR_UNTAGGED:
1748 	default:
1749 		atiop->tag_action = 0;
1750 		break;
1751 	}
1752 
1753 	atp->orig_datalen = aep->at_datalen;
1754 	atp->bytes_xfered = 0;
1755 	atp->lun = lun;
1756 	atp->nphdl = nphdl;
1757 	atp->sid = PORT_ANY;
1758 	atp->oxid = aep->at_oxid;
1759 	atp->cdb0 = aep->at_cdb[0];
1760 	atp->tattr = aep->at_taskflags & ATIO2_TC_ATTR_MASK;
1761 	atp->state = ATPD_STATE_CAM;
1762 	xpt_done((union ccb *)atiop);
1763 	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);
1764 	return;
1765 noresrc:
1766 	ntp = isp_get_ntpd(isp, 0);
1767 	if (ntp == NULL) {
1768 		isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
1769 		return;
1770 	}
1771 	memcpy(ntp->data, aep, QENTRY_LEN);
1772 	STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
1773 }
1774 
1775 static void
1776 isp_handle_platform_atio7(ispsoftc_t *isp, at7_entry_t *aep)
1777 {
1778 	int cdbxlen;
1779 	lun_id_t lun;
1780 	uint16_t chan, nphdl = NIL_HANDLE;
1781 	uint32_t did, sid;
1782 	fcportdb_t *lp;
1783 	tstate_t *tptr;
1784 	struct ccb_accept_tio *atiop;
1785 	atio_private_data_t *atp = NULL;
1786 	atio_private_data_t *oatp;
1787 	inot_private_data_t *ntp;
1788 
1789 	did = (aep->at_hdr.d_id[0] << 16) | (aep->at_hdr.d_id[1] << 8) | aep->at_hdr.d_id[2];
1790 	sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
1791 	lun = CAM_EXTLUN_BYTE_SWIZZLE(be64dec(aep->at_cmnd.fcp_cmnd_lun));
1792 
1793 	if (ISP_CAP_MULTI_ID(isp) && isp->isp_nchan > 1) {
1794 		/* Channel has to be derived from D_ID */
1795 		isp_find_chan_by_did(isp, did, &chan);
1796 		if (chan == ISP_NOCHAN) {
1797 			isp_prt(isp, ISP_LOGWARN,
1798 			    "%s: [RX_ID 0x%x] D_ID %x not found on any channel",
1799 			    __func__, aep->at_rxid, did);
1800 			isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN,
1801 			    ECMD_TERMINATE, 0);
1802 			return;
1803 		}
1804 	} else {
1805 		chan = 0;
1806 	}
1807 
1808 	/*
1809 	 * Find the PDB entry for this initiator
1810 	 */
1811 	if (isp_find_pdb_by_portid(isp, chan, sid, &lp) == 0) {
1812 		/*
1813 		 * If we're not in the port database terminate the exchange.
1814 		 */
1815 		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",
1816 		    __func__, aep->at_rxid, did, chan, sid);
1817 		isp_dump_portdb(isp, chan);
1818 		isp_endcmd(isp, aep, NIL_HANDLE, chan, ECMD_TERMINATE, 0);
1819 		return;
1820 	}
1821 	nphdl = lp->handle;
1822 
1823 	/*
1824 	 * Get the tstate pointer
1825 	 */
1826 	tptr = get_lun_statep(isp, chan, lun);
1827 	if (tptr == NULL) {
1828 		tptr = get_lun_statep(isp, chan, CAM_LUN_WILDCARD);
1829 		if (tptr == NULL) {
1830 			isp_prt(isp, ISP_LOGWARN,
1831 			    "%s: [0x%x] no state pointer for lun %jx or wildcard",
1832 			    __func__, aep->at_rxid, (uintmax_t)lun);
1833 			if (lun == 0) {
1834 				isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
1835 			} else {
1836 				isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
1837 			}
1838 			return;
1839 		}
1840 	}
1841 
1842 	/*
1843 	 * Start any commands pending resources first.
1844 	 */
1845 	if (isp_atio_restart(isp, chan, tptr))
1846 		goto noresrc;
1847 
1848 	/*
1849 	 * If the f/w is out of resources, just send a BUSY status back.
1850 	 */
1851 	if (aep->at_rxid == AT7_NORESRC_RXID) {
1852 		isp_endcmd(isp, aep, nphdl, chan, SCSI_BUSY, 0);
1853 		return;
1854 	}
1855 
1856 	/*
1857 	 * If we're out of resources, just send a BUSY status back.
1858 	 */
1859 	atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
1860 	if (atiop == NULL) {
1861 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atios", aep->at_rxid);
1862 		goto noresrc;
1863 	}
1864 
1865 	oatp = isp_find_atpd(isp, chan, aep->at_rxid);
1866 	if (oatp) {
1867 		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",
1868 		    aep->at_rxid, nphdl, sid, aep->at_hdr.ox_id, oatp->state);
1869 		/*
1870 		 * It's not a "no resource" condition- but we can treat it like one
1871 		 */
1872 		goto noresrc;
1873 	}
1874 	atp = isp_get_atpd(isp, chan, aep->at_rxid);
1875 	if (atp == NULL) {
1876 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atps", aep->at_rxid);
1877 		goto noresrc;
1878 	}
1879 	atp->word3 = lp->prli_word3;
1880 	atp->state = ATPD_STATE_ATIO;
1881 	SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1882 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
1883 	atiop->init_id = FC_PORTDB_TGT(isp, chan, lp);
1884 	atiop->ccb_h.target_id = ISP_MAX_TARGETS(isp);
1885 	atiop->ccb_h.target_lun = lun;
1886 	atiop->sense_len = 0;
1887 	cdbxlen = aep->at_cmnd.fcp_cmnd_alen_datadir >> FCP_CMND_ADDTL_CDBLEN_SHIFT;
1888 	if (cdbxlen) {
1889 		isp_prt(isp, ISP_LOGWARN, "additional CDBLEN ignored");
1890 	}
1891 	cdbxlen = sizeof (aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb);
1892 	ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb, cdbxlen);
1893 	atiop->cdb_len = cdbxlen;
1894 	atiop->ccb_h.status = CAM_CDB_RECVD;
1895 	atiop->tag_id = atp->tag;
1896 	switch (aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK) {
1897 	case FCP_CMND_TASK_ATTR_SIMPLE:
1898 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1899 		atiop->tag_action = MSG_SIMPLE_Q_TAG;
1900 		break;
1901 	case FCP_CMND_TASK_ATTR_HEAD:
1902 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1903 		atiop->tag_action = MSG_HEAD_OF_Q_TAG;
1904 		break;
1905 	case FCP_CMND_TASK_ATTR_ORDERED:
1906 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1907 		atiop->tag_action = MSG_ORDERED_Q_TAG;
1908 		break;
1909 	default:
1910 		/* FALLTHROUGH */
1911 	case FCP_CMND_TASK_ATTR_ACA:
1912 	case FCP_CMND_TASK_ATTR_UNTAGGED:
1913 		atiop->tag_action = 0;
1914 		break;
1915 	}
1916 	atp->orig_datalen = aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl;
1917 	atp->bytes_xfered = 0;
1918 	atp->lun = lun;
1919 	atp->nphdl = nphdl;
1920 	atp->sid = sid;
1921 	atp->did = did;
1922 	atp->oxid = aep->at_hdr.ox_id;
1923 	atp->rxid = aep->at_hdr.rx_id;
1924 	atp->cdb0 = atiop->cdb_io.cdb_bytes[0];
1925 	atp->tattr = aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK;
1926 	atp->state = ATPD_STATE_CAM;
1927 	isp_prt(isp, ISP_LOGTDEBUG0, "ATIO7[0x%x] CDB=0x%x lun %jx datalen %u",
1928 	    aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
1929 	xpt_done((union ccb *)atiop);
1930 	return;
1931 noresrc:
1932 	if (atp)
1933 		isp_put_atpd(isp, chan, atp);
1934 	ntp = isp_get_ntpd(isp, chan);
1935 	if (ntp == NULL) {
1936 		isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
1937 		return;
1938 	}
1939 	memcpy(ntp->data, aep, QENTRY_LEN);
1940 	STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
1941 }
1942 
1943 
1944 /*
1945  * Handle starting an SRR (sequence retransmit request)
1946  * We get here when we've gotten the immediate notify
1947  * and the return of all outstanding CTIOs for this
1948  * transaction.
1949  */
1950 static void
1951 isp_handle_srr_start(ispsoftc_t *isp, atio_private_data_t *atp)
1952 {
1953 	in_fcentry_24xx_t *inot;
1954 	uint32_t srr_off, ccb_off, ccb_len, ccb_end;
1955 	union ccb *ccb;
1956 
1957 	inot = (in_fcentry_24xx_t *)atp->srr;
1958 	srr_off = inot->in_srr_reloff_lo | (inot->in_srr_reloff_hi << 16);
1959 	ccb = atp->srr_ccb;
1960 	atp->srr_ccb = NULL;
1961 	atp->nsrr++;
1962 	if (ccb == NULL) {
1963 		isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] null ccb", atp->tag);
1964 		goto fail;
1965 	}
1966 
1967 	ccb_off = ccb->ccb_h.spriv_field0;
1968 	ccb_len = ccb->csio.dxfer_len;
1969         ccb_end = (ccb_off == ~0)? ~0 : ccb_off + ccb_len;
1970 
1971 	switch (inot->in_srr_iu) {
1972 	case R_CTL_INFO_SOLICITED_DATA:
1973 		/*
1974 		 * We have to restart a FCP_DATA data out transaction
1975 		 */
1976 		atp->sendst = 0;
1977 		atp->bytes_xfered = srr_off;
1978 		if (ccb_len == 0) {
1979 			isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x but current CCB doesn't transfer data", atp->tag, srr_off);
1980 			goto mdp;
1981 		}
1982  		if (srr_off < ccb_off || ccb_off > srr_off + ccb_len) {
1983 			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);
1984 			goto mdp;
1985 		}
1986 		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);
1987 		break;
1988 	case R_CTL_INFO_COMMAND_STATUS:
1989 		isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] Got an FCP RSP SRR- resending status", atp->tag);
1990 		atp->sendst = 1;
1991 		/*
1992 		 * We have to restart a FCP_RSP IU transaction
1993 		 */
1994 		break;
1995 	case R_CTL_INFO_DATA_DESCRIPTOR:
1996 		/*
1997 		 * We have to restart an FCP DATA in transaction
1998 		 */
1999 		isp_prt(isp, ISP_LOGWARN, "Got an FCP DATA IN SRR- dropping");
2000 		goto fail;
2001 
2002 	default:
2003 		isp_prt(isp, ISP_LOGWARN, "Got an unknown information (%x) SRR- dropping", inot->in_srr_iu);
2004 		goto fail;
2005 	}
2006 
2007 	/*
2008 	 * We can't do anything until this is acked, so we might as well start it now.
2009 	 * We aren't going to do the usual asynchronous ack issue because we need
2010 	 * to make sure this gets on the wire first.
2011 	 */
2012 	if (isp_notify_ack(isp, inot)) {
2013 		isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
2014 		goto fail;
2015 	}
2016 	isp_target_start_ctio(isp, ccb, FROM_SRR);
2017 	return;
2018 fail:
2019 	inot->in_reserved = 1;
2020 	isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
2021 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2022 	ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
2023 	isp_complete_ctio(ccb);
2024 	return;
2025 mdp:
2026 	if (isp_notify_ack(isp, inot)) {
2027 		isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
2028 		goto fail;
2029 	}
2030 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2031 	ccb->ccb_h.status = CAM_MESSAGE_RECV;
2032 	/*
2033 	 * This is not a strict interpretation of MDP, but it's close
2034 	 */
2035 	ccb->csio.msg_ptr = &ccb->csio.sense_data.sense_buf[SSD_FULL_SIZE - 16];
2036 	ccb->csio.msg_len = 7;
2037 	ccb->csio.msg_ptr[0] = MSG_EXTENDED;
2038 	ccb->csio.msg_ptr[1] = 5;
2039 	ccb->csio.msg_ptr[2] = 0;	/* modify data pointer */
2040 	ccb->csio.msg_ptr[3] = srr_off >> 24;
2041 	ccb->csio.msg_ptr[4] = srr_off >> 16;
2042 	ccb->csio.msg_ptr[5] = srr_off >> 8;
2043 	ccb->csio.msg_ptr[6] = srr_off;
2044 	isp_complete_ctio(ccb);
2045 }
2046 
2047 
2048 static void
2049 isp_handle_platform_srr(ispsoftc_t *isp, isp_notify_t *notify)
2050 {
2051 	in_fcentry_24xx_t *inot = notify->nt_lreserved;
2052 	atio_private_data_t *atp;
2053 	uint32_t tag = notify->nt_tagval & 0xffffffff;
2054 
2055 	atp = isp_find_atpd(isp, notify->nt_channel, tag);
2056 	if (atp == NULL) {
2057 		isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x in SRR Notify",
2058 		    __func__, tag);
2059 		isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
2060 		return;
2061 	}
2062 	atp->srr_notify_rcvd = 1;
2063 	memcpy(atp->srr, inot, sizeof (atp->srr));
2064 	isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] flags 0x%x srr_iu %x reloff 0x%x",
2065 	    inot->in_rxid, inot->in_flags, inot->in_srr_iu,
2066 	    ((uint32_t)inot->in_srr_reloff_hi << 16) | inot->in_srr_reloff_lo);
2067 	if (atp->srr_ccb)
2068 		isp_handle_srr_start(isp, atp);
2069 }
2070 
2071 static void
2072 isp_handle_platform_ctio(ispsoftc_t *isp, void *arg)
2073 {
2074 	union ccb *ccb;
2075 	int sentstatus = 0, ok = 0, notify_cam = 0, failure = 0;
2076 	atio_private_data_t *atp = NULL;
2077 	int bus;
2078 	uint32_t handle, data_requested, resid;
2079 
2080 	handle = ((ct2_entry_t *)arg)->ct_syshandle;
2081 	ccb = isp_find_xs(isp, handle);
2082 	if (ccb == NULL) {
2083 		isp_print_bytes(isp, "null ccb in isp_handle_platform_ctio", QENTRY_LEN, arg);
2084 		return;
2085 	}
2086 	isp_destroy_handle(isp, handle);
2087 	resid = data_requested = PISP_PCMD(ccb)->datalen;
2088 	isp_free_pcmd(isp, ccb);
2089 
2090 	bus = XS_CHANNEL(ccb);
2091 	if (IS_24XX(isp)) {
2092 		atp = isp_find_atpd(isp, bus, ((ct7_entry_t *)arg)->ct_rxid);
2093 	} else {
2094 		atp = isp_find_atpd(isp, bus, ((ct2_entry_t *)arg)->ct_rxid);
2095 	}
2096 	if (atp == NULL) {
2097 		/*
2098 		 * XXX: isp_clear_commands() generates fake CTIO with zero
2099 		 * ct_rxid value, filling only ct_syshandle.  Workaround
2100 		 * that using tag_id from the CCB, pointed by ct_syshandle.
2101 		 */
2102 		atp = isp_find_atpd(isp, bus, ccb->csio.tag_id);
2103 	}
2104 	if (atp == NULL) {
2105 		isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x after I/O", __func__, ccb->csio.tag_id);
2106 		return;
2107 	}
2108 	KASSERT((atp->ctcnt > 0), ("ctio count not greater than zero"));
2109 	atp->bytes_in_transit -= data_requested;
2110 	atp->ctcnt -= 1;
2111 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2112 
2113 	if (IS_24XX(isp)) {
2114 		ct7_entry_t *ct = arg;
2115 
2116 		if (ct->ct_nphdl == CT7_SRR) {
2117 			atp->srr_ccb = ccb;
2118 			if (atp->srr_notify_rcvd)
2119 				isp_handle_srr_start(isp, atp);
2120 			return;
2121 		}
2122 		if (ct->ct_nphdl == CT_HBA_RESET) {
2123 			sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2124 			    (atp->sendst == 0);
2125 			failure = CAM_UNREC_HBA_ERROR;
2126 		} else {
2127 			sentstatus = ct->ct_flags & CT7_SENDSTATUS;
2128 			ok = (ct->ct_nphdl == CT7_OK);
2129 			notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
2130 			if ((ct->ct_flags & CT7_DATAMASK) != CT7_NO_DATA)
2131 				resid = ct->ct_resid;
2132 		}
2133 		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),
2134 		   notify_cam, ct->ct_nphdl, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
2135 	} else {
2136 		ct2_entry_t *ct = arg;
2137 		if (ct->ct_status == CT_SRR) {
2138 			atp->srr_ccb = ccb;
2139 			if (atp->srr_notify_rcvd)
2140 				isp_handle_srr_start(isp, atp);
2141 			isp_target_putback_atio(ccb);
2142 			return;
2143 		}
2144 		if (ct->ct_status == CT_HBA_RESET) {
2145 			sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2146 			    (atp->sendst == 0);
2147 			failure = CAM_UNREC_HBA_ERROR;
2148 		} else {
2149 			sentstatus = ct->ct_flags & CT2_SENDSTATUS;
2150 			ok = (ct->ct_status & ~QLTM_SVALID) == CT_OK;
2151 			notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
2152 			if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA)
2153 				resid = ct->ct_resid;
2154 		}
2155 		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),
2156 		    notify_cam, ct->ct_status, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
2157 	}
2158 	if (ok) {
2159 		if (data_requested > 0) {
2160 			atp->bytes_xfered += data_requested - resid;
2161 			ccb->csio.resid = ccb->csio.dxfer_len -
2162 			    (data_requested - resid);
2163 		}
2164 		if (sentstatus && (ccb->ccb_h.flags & CAM_SEND_SENSE))
2165 			ccb->ccb_h.status |= CAM_SENT_SENSE;
2166 		ccb->ccb_h.status |= CAM_REQ_CMP;
2167 	} else {
2168 		notify_cam = 1;
2169 		if (failure == CAM_UNREC_HBA_ERROR)
2170 			ccb->ccb_h.status |= CAM_UNREC_HBA_ERROR;
2171 		else
2172 			ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
2173 	}
2174 	atp->state = ATPD_STATE_PDON;
2175 
2176 	/*
2177 	 * We never *not* notify CAM when there has been any error (ok == 0),
2178 	 * so we never need to do an ATIO putback if we're not notifying CAM.
2179 	 */
2180 	isp_prt(isp, ISP_LOGTDEBUG0, "%s CTIO[0x%x] done (ok=%d nc=%d nowsendstatus=%d ccb ss=%d)",
2181 	    (sentstatus)? "  FINAL " : "MIDTERM ", atp->tag, ok, notify_cam, atp->sendst, (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0);
2182 	if (notify_cam == 0) {
2183 		if (atp->sendst) {
2184 			isp_target_start_ctio(isp, ccb, FROM_CTIO_DONE);
2185 		}
2186 		return;
2187 	}
2188 
2189 	/*
2190 	 * We are done with this ATIO if we successfully sent status.
2191 	 * In all other cases expect either another CTIO or XPT_ABORT.
2192 	 */
2193 	if (ok && sentstatus)
2194 		isp_put_atpd(isp, bus, atp);
2195 
2196 	/*
2197 	 * We're telling CAM we're done with this CTIO transaction.
2198 	 *
2199 	 * 24XX cards never need an ATIO put back.
2200 	 *
2201 	 * Other cards need one put back only on error.
2202 	 * In the latter case, a timeout will re-fire
2203 	 * and try again in case we didn't have
2204 	 * queue resources to do so at first. In any case,
2205 	 * once the putback is done we do the completion
2206 	 * call.
2207 	 */
2208 	if (ok || IS_24XX(isp)) {
2209 		isp_complete_ctio(ccb);
2210 	} else {
2211 		isp_target_putback_atio(ccb);
2212 	}
2213 }
2214 
2215 static int
2216 isp_handle_platform_target_notify_ack(ispsoftc_t *isp, isp_notify_t *mp, uint32_t rsp)
2217 {
2218 
2219 	if (isp->isp_state != ISP_RUNSTATE) {
2220 		isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) acked- h/w not ready (dropping)", mp->nt_ncode, mp->nt_lreserved != NULL);
2221 		return (0);
2222 	}
2223 
2224 	/*
2225 	 * This case is for a Task Management Function, which shows up as an ATIO7 entry.
2226 	 */
2227 	if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ATIO) {
2228 		ct7_entry_t local, *cto = &local;
2229 		at7_entry_t *aep = (at7_entry_t *)mp->nt_lreserved;
2230 		fcportdb_t *lp;
2231 		uint32_t sid;
2232 		uint16_t nphdl;
2233 
2234 		sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
2235 		if (isp_find_pdb_by_portid(isp, mp->nt_channel, sid, &lp)) {
2236 			nphdl = lp->handle;
2237 		} else {
2238 			nphdl = NIL_HANDLE;
2239 		}
2240 		ISP_MEMZERO(&local, sizeof (local));
2241 		cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2242 		cto->ct_header.rqs_entry_count = 1;
2243 		cto->ct_nphdl = nphdl;
2244 		cto->ct_rxid = aep->at_rxid;
2245 		cto->ct_vpidx = mp->nt_channel;
2246 		cto->ct_iid_lo = sid;
2247 		cto->ct_iid_hi = sid >> 16;
2248 		cto->ct_oxid = aep->at_hdr.ox_id;
2249 		cto->ct_flags = CT7_SENDSTATUS|CT7_NOACK|CT7_NO_DATA|CT7_FLAG_MODE1;
2250 		cto->ct_flags |= (aep->at_ta_len >> 12) << CT7_TASK_ATTR_SHIFT;
2251 		if (rsp != 0) {
2252 			cto->ct_scsi_status |= (FCP_RSPLEN_VALID << 8);
2253 			cto->rsp.m1.ct_resplen = 4;
2254 			ISP_MEMZERO(cto->rsp.m1.ct_resp, sizeof (cto->rsp.m1.ct_resp));
2255 			cto->rsp.m1.ct_resp[0] = rsp & 0xff;
2256 			cto->rsp.m1.ct_resp[1] = (rsp >> 8) & 0xff;
2257 			cto->rsp.m1.ct_resp[2] = (rsp >> 16) & 0xff;
2258 			cto->rsp.m1.ct_resp[3] = (rsp >> 24) & 0xff;
2259 		}
2260 		return (isp_target_put_entry(isp, &local));
2261 	}
2262 
2263 	/*
2264 	 * This case is for a responding to an ABTS frame
2265 	 */
2266 	if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
2267 
2268 		/*
2269 		 * Overload nt_need_ack here to mark whether we've terminated the associated command.
2270 		 */
2271 		if (mp->nt_need_ack) {
2272 			uint8_t storage[QENTRY_LEN];
2273 			ct7_entry_t *cto = (ct7_entry_t *) storage;
2274 			abts_t *abts = (abts_t *)mp->nt_lreserved;
2275 
2276 			ISP_MEMZERO(cto, sizeof (ct7_entry_t));
2277 			isp_prt(isp, ISP_LOGTDEBUG0, "%s: [%x] terminating after ABTS received", __func__, abts->abts_rxid_task);
2278 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2279 			cto->ct_header.rqs_entry_count = 1;
2280 			cto->ct_nphdl = mp->nt_nphdl;
2281 			cto->ct_rxid = abts->abts_rxid_task;
2282 			cto->ct_iid_lo = mp->nt_sid;
2283 			cto->ct_iid_hi = mp->nt_sid >> 16;
2284 			cto->ct_oxid = abts->abts_ox_id;
2285 			cto->ct_vpidx = mp->nt_channel;
2286 			cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
2287 			if (isp_target_put_entry(isp, cto)) {
2288 				return (ENOMEM);
2289 			}
2290 			mp->nt_need_ack = 0;
2291 		}
2292 		if (isp_acknak_abts(isp, mp->nt_lreserved, 0) == ENOMEM) {
2293 			return (ENOMEM);
2294 		} else {
2295 			return (0);
2296 		}
2297 	}
2298 
2299 	/*
2300 	 * Handle logout cases here
2301 	 */
2302 	if (mp->nt_ncode == NT_GLOBAL_LOGOUT) {
2303 		isp_del_all_wwn_entries(isp, mp->nt_channel);
2304 	}
2305 
2306 	if (mp->nt_ncode == NT_LOGOUT) {
2307 		if (!IS_2100(isp) && IS_FC(isp)) {
2308 			isp_del_wwn_entries(isp, mp);
2309 		}
2310 	}
2311 
2312 	/*
2313 	 * General purpose acknowledgement
2314 	 */
2315 	if (mp->nt_need_ack) {
2316 		isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) being acked", mp->nt_ncode, mp->nt_lreserved != NULL);
2317 		/*
2318 		 * Don't need to use the guaranteed send because the caller can retry
2319 		 */
2320 		return (isp_notify_ack(isp, mp->nt_lreserved));
2321 	}
2322 	return (0);
2323 }
2324 
2325 /*
2326  * Handle task management functions.
2327  *
2328  * We show up here with a notify structure filled out.
2329  *
2330  * The nt_lreserved tag points to the original queue entry
2331  */
2332 static void
2333 isp_handle_platform_target_tmf(ispsoftc_t *isp, isp_notify_t *notify)
2334 {
2335 	tstate_t *tptr;
2336 	fcportdb_t *lp;
2337 	struct ccb_immediate_notify *inot;
2338 	inot_private_data_t *ntp = NULL;
2339 	atio_private_data_t *atp;
2340 	lun_id_t lun;
2341 
2342 	isp_prt(isp, ISP_LOGTDEBUG0, "%s: code 0x%x sid  0x%x tagval 0x%016llx chan %d lun %jx", __func__, notify->nt_ncode,
2343 	    notify->nt_sid, (unsigned long long) notify->nt_tagval, notify->nt_channel, notify->nt_lun);
2344 	if (notify->nt_lun == LUN_ANY) {
2345 		if (notify->nt_tagval == TAG_ANY) {
2346 			lun = CAM_LUN_WILDCARD;
2347 		} else {
2348 			atp = isp_find_atpd(isp, notify->nt_channel,
2349 			    notify->nt_tagval & 0xffffffff);
2350 			lun = atp ? atp->lun : CAM_LUN_WILDCARD;
2351 		}
2352 	} else {
2353 		lun = notify->nt_lun;
2354 	}
2355 	tptr = get_lun_statep(isp, notify->nt_channel, lun);
2356 	if (tptr == NULL) {
2357 		tptr = get_lun_statep(isp, notify->nt_channel, CAM_LUN_WILDCARD);
2358 		if (tptr == NULL) {
2359 			isp_prt(isp, ISP_LOGWARN, "%s: no state pointer found for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
2360 			goto bad;
2361 		}
2362 	}
2363 	inot = (struct ccb_immediate_notify *) SLIST_FIRST(&tptr->inots);
2364 	if (inot == NULL) {
2365 		isp_prt(isp, ISP_LOGWARN, "%s: out of immediate notify structures for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
2366 		goto bad;
2367 	}
2368 
2369 	inot->ccb_h.target_id = ISP_MAX_TARGETS(isp);
2370 	inot->ccb_h.target_lun = lun;
2371 	if (isp_find_pdb_by_portid(isp, notify->nt_channel, notify->nt_sid, &lp) == 0 &&
2372 	    isp_find_pdb_by_handle(isp, notify->nt_channel, notify->nt_nphdl, &lp) == 0) {
2373 		inot->initiator_id = CAM_TARGET_WILDCARD;
2374 	} else {
2375 		inot->initiator_id = FC_PORTDB_TGT(isp, notify->nt_channel, lp);
2376 	}
2377 	inot->seq_id = notify->nt_tagval;
2378 	inot->tag_id = notify->nt_tagval >> 32;
2379 
2380 	switch (notify->nt_ncode) {
2381 	case NT_ABORT_TASK:
2382 		isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, inot->tag_id);
2383 		inot->arg = MSG_ABORT_TASK;
2384 		break;
2385 	case NT_ABORT_TASK_SET:
2386 		isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, TAG_ANY);
2387 		inot->arg = MSG_ABORT_TASK_SET;
2388 		break;
2389 	case NT_CLEAR_ACA:
2390 		inot->arg = MSG_CLEAR_ACA;
2391 		break;
2392 	case NT_CLEAR_TASK_SET:
2393 		inot->arg = MSG_CLEAR_TASK_SET;
2394 		break;
2395 	case NT_LUN_RESET:
2396 		inot->arg = MSG_LOGICAL_UNIT_RESET;
2397 		break;
2398 	case NT_TARGET_RESET:
2399 		inot->arg = MSG_TARGET_RESET;
2400 		break;
2401 	case NT_QUERY_TASK_SET:
2402 		inot->arg = MSG_QUERY_TASK_SET;
2403 		break;
2404 	case NT_QUERY_ASYNC_EVENT:
2405 		inot->arg = MSG_QUERY_ASYNC_EVENT;
2406 		break;
2407 	default:
2408 		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);
2409 		goto bad;
2410 	}
2411 
2412 	ntp = isp_get_ntpd(isp, notify->nt_channel);
2413 	if (ntp == NULL) {
2414 		isp_prt(isp, ISP_LOGWARN, "%s: out of inotify private structures", __func__);
2415 		goto bad;
2416 	}
2417 	ISP_MEMCPY(&ntp->nt, notify, sizeof (isp_notify_t));
2418 	if (notify->nt_lreserved) {
2419 		ISP_MEMCPY(&ntp->data, notify->nt_lreserved, QENTRY_LEN);
2420 		ntp->nt.nt_lreserved = &ntp->data;
2421 	}
2422 	ntp->seq_id = notify->nt_tagval;
2423 	ntp->tag_id = notify->nt_tagval >> 32;
2424 
2425 	SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
2426 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, inot->ccb_h.path, "Take FREE INOT\n");
2427 	inot->ccb_h.status = CAM_MESSAGE_RECV;
2428 	xpt_done((union ccb *)inot);
2429 	return;
2430 bad:
2431 	if (notify->nt_need_ack) {
2432 		if (((isphdr_t *)notify->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
2433 			if (isp_acknak_abts(isp, notify->nt_lreserved, ENOMEM)) {
2434 				isp_prt(isp, ISP_LOGWARN, "you lose- unable to send an ACKNAK");
2435 			}
2436 		} else {
2437 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, notify->nt_lreserved);
2438 		}
2439 	}
2440 }
2441 
2442 static void
2443 isp_target_mark_aborted_early(ispsoftc_t *isp, int chan, tstate_t *tptr, uint32_t tag_id)
2444 {
2445 	atio_private_data_t *atp, *atpool;
2446 	inot_private_data_t *ntp, *tmp;
2447 	uint32_t this_tag_id;
2448 
2449 	/*
2450 	 * First, clean any commands pending restart
2451 	 */
2452 	STAILQ_FOREACH_SAFE(ntp, &tptr->restart_queue, next, tmp) {
2453 		if (IS_24XX(isp))
2454 			this_tag_id = ((at7_entry_t *)ntp->data)->at_rxid;
2455 		else
2456 			this_tag_id = ((at2_entry_t *)ntp->data)->at_rxid;
2457 		if ((uint64_t)tag_id == TAG_ANY || tag_id == this_tag_id) {
2458 			isp_endcmd(isp, ntp->data, NIL_HANDLE, chan,
2459 			    ECMD_TERMINATE, 0);
2460 			isp_put_ntpd(isp, chan, ntp);
2461 			STAILQ_REMOVE(&tptr->restart_queue, ntp,
2462 			    inot_private_data, next);
2463 		}
2464 	}
2465 
2466 	/*
2467 	 * Now mark other ones dead as well.
2468 	 */
2469 	ISP_GET_PC(isp, chan, atpool, atpool);
2470 	for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
2471 		if (atp->lun != tptr->ts_lun)
2472 			continue;
2473 		if ((uint64_t)tag_id == TAG_ANY || atp->tag == tag_id)
2474 			atp->dead = 1;
2475 	}
2476 }
2477 #endif
2478 
2479 static void
2480 isp_cam_async(void *cbarg, uint32_t code, struct cam_path *path, void *arg)
2481 {
2482 	struct cam_sim *sim;
2483 	int bus, tgt;
2484 	ispsoftc_t *isp;
2485 
2486 	sim = (struct cam_sim *)cbarg;
2487 	isp = (ispsoftc_t *) cam_sim_softc(sim);
2488 	bus = cam_sim_bus(sim);
2489 	tgt = xpt_path_target_id(path);
2490 
2491 	switch (code) {
2492 	case AC_LOST_DEVICE:
2493 		if (IS_SCSI(isp)) {
2494 			uint16_t oflags, nflags;
2495 			sdparam *sdp = SDPARAM(isp, bus);
2496 
2497 			if (tgt >= 0) {
2498 				nflags = sdp->isp_devparam[tgt].nvrm_flags;
2499 				nflags &= DPARM_SAFE_DFLT;
2500 				if (isp->isp_loaded_fw) {
2501 					nflags |= DPARM_NARROW | DPARM_ASYNC;
2502 				}
2503 				oflags = sdp->isp_devparam[tgt].goal_flags;
2504 				sdp->isp_devparam[tgt].goal_flags = nflags;
2505 				sdp->isp_devparam[tgt].dev_update = 1;
2506 				sdp->update = 1;
2507 				(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
2508 				sdp->isp_devparam[tgt].goal_flags = oflags;
2509 			}
2510 		}
2511 		break;
2512 	default:
2513 		isp_prt(isp, ISP_LOGWARN, "isp_cam_async: Code 0x%x", code);
2514 		break;
2515 	}
2516 }
2517 
2518 static void
2519 isp_poll(struct cam_sim *sim)
2520 {
2521 	ispsoftc_t *isp = cam_sim_softc(sim);
2522 
2523 	ISP_RUN_ISR(isp);
2524 }
2525 
2526 
2527 static void
2528 isp_watchdog(void *arg)
2529 {
2530 	struct ccb_scsiio *xs = arg;
2531 	ispsoftc_t *isp;
2532 	uint32_t ohandle = ISP_HANDLE_FREE, handle;
2533 
2534 	isp = XS_ISP(xs);
2535 
2536 	handle = isp_find_handle(isp, xs);
2537 
2538 	/*
2539 	 * Hand crank the interrupt code just to be sure the command isn't stuck somewhere.
2540 	 */
2541 	if (handle != ISP_HANDLE_FREE) {
2542 		ISP_RUN_ISR(isp);
2543 		ohandle = handle;
2544 		handle = isp_find_handle(isp, xs);
2545 	}
2546 	if (handle != ISP_HANDLE_FREE) {
2547 		/*
2548 		 * Try and make sure the command is really dead before
2549 		 * we release the handle (and DMA resources) for reuse.
2550 		 *
2551 		 * If we are successful in aborting the command then
2552 		 * we're done here because we'll get the command returned
2553 		 * back separately.
2554 		 */
2555 		if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
2556 			return;
2557 		}
2558 
2559 		/*
2560 		 * Note that after calling the above, the command may in
2561 		 * fact have been completed.
2562 		 */
2563 		xs = isp_find_xs(isp, handle);
2564 
2565 		/*
2566 		 * If the command no longer exists, then we won't
2567 		 * be able to find the xs again with this handle.
2568 		 */
2569 		if (xs == NULL) {
2570 			return;
2571 		}
2572 
2573 		/*
2574 		 * After this point, the command is really dead.
2575 		 */
2576 		if (XS_XFRLEN(xs)) {
2577 			ISP_DMAFREE(isp, xs, handle);
2578 		}
2579 		isp_destroy_handle(isp, handle);
2580 		isp_prt(isp, ISP_LOGERR, "%s: timeout for handle 0x%x", __func__, handle);
2581 		XS_SETERR(xs, CAM_CMD_TIMEOUT);
2582 		isp_done(xs);
2583 	} else {
2584 		if (ohandle != ISP_HANDLE_FREE) {
2585 			isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle 0x%x, recovered during interrupt", __func__, ohandle);
2586 		} else {
2587 			isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle already free", __func__);
2588 		}
2589 	}
2590 }
2591 
2592 static void
2593 isp_make_here(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
2594 {
2595 	union ccb *ccb;
2596 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2597 
2598 	/*
2599 	 * Allocate a CCB, create a wildcard path for this target and schedule a rescan.
2600 	 */
2601 	ccb = xpt_alloc_ccb_nowait();
2602 	if (ccb == NULL) {
2603 		isp_prt(isp, ISP_LOGWARN, "Chan %d unable to alloc CCB for rescan", chan);
2604 		return;
2605 	}
2606 	if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(fc->sim),
2607 	    tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2608 		isp_prt(isp, ISP_LOGWARN, "unable to create path for rescan");
2609 		xpt_free_ccb(ccb);
2610 		return;
2611 	}
2612 	xpt_rescan(ccb);
2613 }
2614 
2615 static void
2616 isp_make_gone(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
2617 {
2618 	struct cam_path *tp;
2619 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2620 
2621 	if (xpt_create_path(&tp, NULL, cam_sim_path(fc->sim), tgt, CAM_LUN_WILDCARD) == CAM_REQ_CMP) {
2622 		xpt_async(AC_LOST_DEVICE, tp, NULL);
2623 		xpt_free_path(tp);
2624 	}
2625 }
2626 
2627 /*
2628  * Gone Device Timer Function- when we have decided that a device has gone
2629  * away, we wait a specific period of time prior to telling the OS it has
2630  * gone away.
2631  *
2632  * This timer function fires once a second and then scans the port database
2633  * for devices that are marked dead but still have a virtual target assigned.
2634  * We decrement a counter for that port database entry, and when it hits zero,
2635  * we tell the OS the device has gone away.
2636  */
2637 static void
2638 isp_gdt(void *arg)
2639 {
2640 	struct isp_fc *fc = arg;
2641 	taskqueue_enqueue(taskqueue_thread, &fc->gtask);
2642 }
2643 
2644 static void
2645 isp_gdt_task(void *arg, int pending)
2646 {
2647 	struct isp_fc *fc = arg;
2648 	ispsoftc_t *isp = fc->isp;
2649 	int chan = fc - isp->isp_osinfo.pc.fc;
2650 	fcportdb_t *lp;
2651 	struct ac_contract ac;
2652 	struct ac_device_changed *adc;
2653 	int dbidx, more_to_do = 0;
2654 
2655 	ISP_LOCK(isp);
2656 	isp_prt(isp, ISP_LOGDEBUG0, "Chan %d GDT timer expired", chan);
2657 	for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
2658 		lp = &FCPARAM(isp, chan)->portdb[dbidx];
2659 
2660 		if (lp->state != FC_PORTDB_STATE_ZOMBIE) {
2661 			continue;
2662 		}
2663 		if (lp->gone_timer != 0) {
2664 			lp->gone_timer -= 1;
2665 			more_to_do++;
2666 			continue;
2667 		}
2668 		isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Gone Device Timeout");
2669 		if (lp->is_target) {
2670 			lp->is_target = 0;
2671 			isp_make_gone(isp, lp, chan, dbidx);
2672 		}
2673 		if (lp->is_initiator) {
2674 			lp->is_initiator = 0;
2675 			ac.contract_number = AC_CONTRACT_DEV_CHG;
2676 			adc = (struct ac_device_changed *) ac.contract_data;
2677 			adc->wwpn = lp->port_wwn;
2678 			adc->port = lp->portid;
2679 			adc->target = dbidx;
2680 			adc->arrived = 0;
2681 			xpt_async(AC_CONTRACT, fc->path, &ac);
2682 		}
2683 		lp->state = FC_PORTDB_STATE_NIL;
2684 	}
2685 	if (fc->ready) {
2686 		if (more_to_do) {
2687 			callout_reset(&fc->gdt, hz, isp_gdt, fc);
2688 		} else {
2689 			callout_deactivate(&fc->gdt);
2690 			isp_prt(isp, ISP_LOG_SANCFG, "Chan %d Stopping Gone Device Timer @ %lu", chan, (unsigned long) time_uptime);
2691 		}
2692 	}
2693 	ISP_UNLOCK(isp);
2694 }
2695 
2696 /*
2697  * When loop goes down we remember the time and freeze CAM command queue.
2698  * During some time period we are trying to reprobe the loop.  But if we
2699  * fail, we tell the OS that devices have gone away and drop the freeze.
2700  *
2701  * We don't clear the devices out of our port database because, when loop
2702  * come back up, we have to do some actual cleanup with the chip at that
2703  * point (implicit PLOGO, e.g., to get the chip's port database state right).
2704  */
2705 static void
2706 isp_loop_changed(ispsoftc_t *isp, int chan)
2707 {
2708 	fcparam *fcp = FCPARAM(isp, chan);
2709 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2710 
2711 	if (fc->loop_down_time)
2712 		return;
2713 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop changed", chan);
2714 	if (fcp->role & ISP_ROLE_INITIATOR)
2715 		isp_freeze_loopdown(isp, chan);
2716 	fc->loop_down_time = time_uptime;
2717 	wakeup(fc);
2718 }
2719 
2720 static void
2721 isp_loop_up(ispsoftc_t *isp, int chan)
2722 {
2723 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2724 
2725 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is up", chan);
2726 	fc->loop_seen_once = 1;
2727 	fc->loop_down_time = 0;
2728 	isp_unfreeze_loopdown(isp, chan);
2729 }
2730 
2731 static void
2732 isp_loop_dead(ispsoftc_t *isp, int chan)
2733 {
2734 	fcparam *fcp = FCPARAM(isp, chan);
2735 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2736 	fcportdb_t *lp;
2737 	struct ac_contract ac;
2738 	struct ac_device_changed *adc;
2739 	int dbidx, i;
2740 
2741 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is dead", chan);
2742 
2743 	/*
2744 	 * Notify to the OS all targets who we now consider have departed.
2745 	 */
2746 	for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
2747 		lp = &fcp->portdb[dbidx];
2748 
2749 		if (lp->state == FC_PORTDB_STATE_NIL)
2750 			continue;
2751 
2752 		for (i = 0; i < isp->isp_maxcmds; i++) {
2753 			struct ccb_scsiio *xs;
2754 
2755 			if (ISP_H2HT(isp->isp_xflist[i].handle) != ISP_HANDLE_INITIATOR) {
2756 				continue;
2757 			}
2758 			if ((xs = isp->isp_xflist[i].cmd) == NULL) {
2759 				continue;
2760                         }
2761 			if (dbidx != XS_TGT(xs)) {
2762 				continue;
2763 			}
2764 			isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx orphaned by loop down timeout",
2765 			    isp->isp_xflist[i].handle, chan, XS_TGT(xs),
2766 			    (uintmax_t)XS_LUN(xs));
2767 
2768 			/*
2769 			 * Just like in isp_watchdog, abort the outstanding
2770 			 * command or immediately free its resources if it is
2771 			 * not active
2772 			 */
2773 			if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
2774 				continue;
2775 			}
2776 
2777 			if (XS_XFRLEN(xs)) {
2778 				ISP_DMAFREE(isp, xs, isp->isp_xflist[i].handle);
2779 			}
2780 			isp_destroy_handle(isp, isp->isp_xflist[i].handle);
2781 			isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx could not be aborted and was destroyed",
2782 			    isp->isp_xflist[i].handle, chan, XS_TGT(xs),
2783 			    (uintmax_t)XS_LUN(xs));
2784 			XS_SETERR(xs, HBA_BUSRESET);
2785 			isp_done(xs);
2786 		}
2787 
2788 		isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Loop Down Timeout");
2789 		if (lp->is_target) {
2790 			lp->is_target = 0;
2791 			isp_make_gone(isp, lp, chan, dbidx);
2792 		}
2793 		if (lp->is_initiator) {
2794 			lp->is_initiator = 0;
2795 			ac.contract_number = AC_CONTRACT_DEV_CHG;
2796 			adc = (struct ac_device_changed *) ac.contract_data;
2797 			adc->wwpn = lp->port_wwn;
2798 			adc->port = lp->portid;
2799 			adc->target = dbidx;
2800 			adc->arrived = 0;
2801 			xpt_async(AC_CONTRACT, fc->path, &ac);
2802 		}
2803 	}
2804 
2805 	isp_unfreeze_loopdown(isp, chan);
2806 	fc->loop_down_time = 0;
2807 }
2808 
2809 static void
2810 isp_kthread(void *arg)
2811 {
2812 	struct isp_fc *fc = arg;
2813 	ispsoftc_t *isp = fc->isp;
2814 	int chan = fc - isp->isp_osinfo.pc.fc;
2815 	int slp = 0, d;
2816 	int lb, lim;
2817 
2818 	ISP_LOCK(isp);
2819 	while (isp->isp_osinfo.is_exiting == 0) {
2820 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2821 		    "Chan %d Checking FC state", chan);
2822 		lb = isp_fc_runstate(isp, chan, 250000);
2823 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2824 		    "Chan %d FC got to %s state", chan,
2825 		    isp_fc_loop_statename(lb));
2826 
2827 		/*
2828 		 * Our action is different based upon whether we're supporting
2829 		 * Initiator mode or not. If we are, we might freeze the simq
2830 		 * when loop is down and set all sorts of different delays to
2831 		 * check again.
2832 		 *
2833 		 * If not, we simply just wait for loop to come up.
2834 		 */
2835 		if (lb == LOOP_READY || lb < 0) {
2836 			slp = 0;
2837 		} else {
2838 			/*
2839 			 * If we've never seen loop up and we've waited longer
2840 			 * than quickboot time, or we've seen loop up but we've
2841 			 * waited longer than loop_down_limit, give up and go
2842 			 * to sleep until loop comes up.
2843 			 */
2844 			if (fc->loop_seen_once == 0)
2845 				lim = isp_quickboot_time;
2846 			else
2847 				lim = fc->loop_down_limit;
2848 			d = time_uptime - fc->loop_down_time;
2849 			if (d >= lim)
2850 				slp = 0;
2851 			else if (d < 10)
2852 				slp = 1;
2853 			else if (d < 30)
2854 				slp = 5;
2855 			else if (d < 60)
2856 				slp = 10;
2857 			else if (d < 120)
2858 				slp = 20;
2859 			else
2860 				slp = 30;
2861 		}
2862 
2863 		if (slp == 0) {
2864 			if (lb == LOOP_READY)
2865 				isp_loop_up(isp, chan);
2866 			else
2867 				isp_loop_dead(isp, chan);
2868 		}
2869 
2870 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2871 		    "Chan %d sleep for %d seconds", chan, slp);
2872 		msleep(fc, &isp->isp_lock, PRIBIO, "ispf", slp * hz);
2873 	}
2874 	fc->num_threads -= 1;
2875 	ISP_UNLOCK(isp);
2876 	kthread_exit();
2877 }
2878 
2879 #ifdef	ISP_TARGET_MODE
2880 static void
2881 isp_abort_atio(ispsoftc_t *isp, union ccb *ccb)
2882 {
2883 	atio_private_data_t *atp;
2884 	union ccb *accb = ccb->cab.abort_ccb;
2885 	struct ccb_hdr *sccb;
2886 	tstate_t *tptr;
2887 
2888 	tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
2889 	if (tptr != NULL) {
2890 		/* Search for the ATIO among queueued. */
2891 		SLIST_FOREACH(sccb, &tptr->atios, sim_links.sle) {
2892 			if (sccb != &accb->ccb_h)
2893 				continue;
2894 			SLIST_REMOVE(&tptr->atios, sccb, ccb_hdr, sim_links.sle);
2895 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
2896 			    "Abort FREE ATIO\n");
2897 			accb->ccb_h.status = CAM_REQ_ABORTED;
2898 			xpt_done(accb);
2899 			ccb->ccb_h.status = CAM_REQ_CMP;
2900 			return;
2901 		}
2902 	}
2903 
2904 	/* Search for the ATIO among running. */
2905 	atp = isp_find_atpd(isp, XS_CHANNEL(accb), accb->atio.tag_id);
2906 	if (atp != NULL) {
2907 		/* Send TERMINATE to firmware. */
2908 		if (!atp->dead && IS_24XX(isp)) {
2909 			uint8_t storage[QENTRY_LEN];
2910 			ct7_entry_t *cto = (ct7_entry_t *) storage;
2911 
2912 			ISP_MEMZERO(cto, sizeof (ct7_entry_t));
2913 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2914 			cto->ct_header.rqs_entry_count = 1;
2915 			cto->ct_nphdl = atp->nphdl;
2916 			cto->ct_rxid = atp->tag;
2917 			cto->ct_iid_lo = atp->sid;
2918 			cto->ct_iid_hi = atp->sid >> 16;
2919 			cto->ct_oxid = atp->oxid;
2920 			cto->ct_vpidx = XS_CHANNEL(accb);
2921 			cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
2922 			isp_target_put_entry(isp, cto);
2923 		}
2924 		isp_put_atpd(isp, XS_CHANNEL(accb), atp);
2925 		ccb->ccb_h.status = CAM_REQ_CMP;
2926 	} else {
2927 		ccb->ccb_h.status = CAM_UA_ABORT;
2928 	}
2929 }
2930 
2931 static void
2932 isp_abort_inot(ispsoftc_t *isp, union ccb *ccb)
2933 {
2934 	inot_private_data_t *ntp;
2935 	union ccb *accb = ccb->cab.abort_ccb;
2936 	struct ccb_hdr *sccb;
2937 	tstate_t *tptr;
2938 
2939 	tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
2940 	if (tptr != NULL) {
2941 		/* Search for the INOT among queueued. */
2942 		SLIST_FOREACH(sccb, &tptr->inots, sim_links.sle) {
2943 			if (sccb != &accb->ccb_h)
2944 				continue;
2945 			SLIST_REMOVE(&tptr->inots, sccb, ccb_hdr, sim_links.sle);
2946 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
2947 			    "Abort FREE INOT\n");
2948 			accb->ccb_h.status = CAM_REQ_ABORTED;
2949 			xpt_done(accb);
2950 			ccb->ccb_h.status = CAM_REQ_CMP;
2951 			return;
2952 		}
2953 	}
2954 
2955 	/* Search for the INOT among running. */
2956 	ntp = isp_find_ntpd(isp, XS_CHANNEL(accb), accb->cin1.tag_id, accb->cin1.seq_id);
2957 	if (ntp != NULL) {
2958 		if (ntp->nt.nt_need_ack) {
2959 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK,
2960 			    ntp->nt.nt_lreserved);
2961 		}
2962 		isp_put_ntpd(isp, XS_CHANNEL(accb), ntp);
2963 		ccb->ccb_h.status = CAM_REQ_CMP;
2964 	} else {
2965 		ccb->ccb_h.status = CAM_UA_ABORT;
2966 		return;
2967 	}
2968 }
2969 #endif
2970 
2971 static void
2972 isp_action(struct cam_sim *sim, union ccb *ccb)
2973 {
2974 	int bus, tgt, error;
2975 	ispsoftc_t *isp;
2976 	struct ccb_trans_settings *cts;
2977 	sbintime_t ts;
2978 
2979 	CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
2980 
2981 	isp = (ispsoftc_t *)cam_sim_softc(sim);
2982 	ISP_ASSERT_LOCKED(isp);
2983 	bus = cam_sim_bus(sim);
2984 	isp_prt(isp, ISP_LOGDEBUG2, "isp_action code %x", ccb->ccb_h.func_code);
2985 	ISP_PCMD(ccb) = NULL;
2986 
2987 	switch (ccb->ccb_h.func_code) {
2988 	case XPT_SCSI_IO:	/* Execute the requested I/O operation */
2989 		/*
2990 		 * Do a couple of preliminary checks...
2991 		 */
2992 		if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2993 			if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
2994 				ccb->ccb_h.status = CAM_REQ_INVALID;
2995 				isp_done((struct ccb_scsiio *) ccb);
2996 				break;
2997 			}
2998 		}
2999 		ccb->csio.req_map = NULL;
3000 #ifdef	DIAGNOSTIC
3001 		if (ccb->ccb_h.target_id >= ISP_MAX_TARGETS(isp)) {
3002 			xpt_print(ccb->ccb_h.path, "invalid target\n");
3003 			ccb->ccb_h.status = CAM_PATH_INVALID;
3004 		} else if (ISP_MAX_LUNS(isp) > 0 &&
3005 		    ccb->ccb_h.target_lun >= ISP_MAX_LUNS(isp)) {
3006 			xpt_print(ccb->ccb_h.path, "invalid lun\n");
3007 			ccb->ccb_h.status = CAM_PATH_INVALID;
3008 		}
3009 		if (ccb->ccb_h.status == CAM_PATH_INVALID) {
3010 			xpt_done(ccb);
3011 			break;
3012 		}
3013 #endif
3014 		ccb->csio.scsi_status = SCSI_STATUS_OK;
3015 		if (isp_get_pcmd(isp, ccb)) {
3016 			isp_prt(isp, ISP_LOGWARN, "out of PCMDs");
3017 			cam_freeze_devq(ccb->ccb_h.path);
3018 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 250, 0);
3019 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3020 			xpt_done(ccb);
3021 			break;
3022 		}
3023 		error = isp_start((XS_T *) ccb);
3024 		switch (error) {
3025 		case CMD_QUEUED:
3026 			ccb->ccb_h.status |= CAM_SIM_QUEUED;
3027 			if (ccb->ccb_h.timeout == CAM_TIME_INFINITY)
3028 				break;
3029 			/* Give firmware extra 10s to handle timeout. */
3030 			ts = SBT_1MS * ccb->ccb_h.timeout + 10 * SBT_1S;
3031 			callout_reset_sbt(&PISP_PCMD(ccb)->wdog, ts, 0,
3032 			    isp_watchdog, ccb, 0);
3033 			break;
3034 		case CMD_RQLATER:
3035 			isp_prt(isp, ISP_LOGDEBUG0, "%d.%jx retry later",
3036 			    XS_TGT(ccb), (uintmax_t)XS_LUN(ccb));
3037 			cam_freeze_devq(ccb->ccb_h.path);
3038 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
3039 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3040 			isp_free_pcmd(isp, ccb);
3041 			xpt_done(ccb);
3042 			break;
3043 		case CMD_EAGAIN:
3044 			isp_free_pcmd(isp, ccb);
3045 			cam_freeze_devq(ccb->ccb_h.path);
3046 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 100, 0);
3047 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3048 			xpt_done(ccb);
3049 			break;
3050 		case CMD_COMPLETE:
3051 			isp_done((struct ccb_scsiio *) ccb);
3052 			break;
3053 		default:
3054 			isp_prt(isp, ISP_LOGERR, "What's this? 0x%x at %d in file %s", error, __LINE__, __FILE__);
3055 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3056 			isp_free_pcmd(isp, ccb);
3057 			xpt_done(ccb);
3058 		}
3059 		break;
3060 
3061 #ifdef	ISP_TARGET_MODE
3062 	case XPT_EN_LUN:		/* Enable/Disable LUN as a target */
3063 		if (ccb->cel.enable) {
3064 			isp_enable_lun(isp, ccb);
3065 		} else {
3066 			isp_disable_lun(isp, ccb);
3067 		}
3068 		break;
3069 	case XPT_IMMEDIATE_NOTIFY:	/* Add Immediate Notify Resource */
3070 	case XPT_ACCEPT_TARGET_IO:	/* Add Accept Target IO Resource */
3071 	{
3072 		tstate_t *tptr = get_lun_statep(isp, XS_CHANNEL(ccb), ccb->ccb_h.target_lun);
3073 		if (tptr == NULL) {
3074 			const char *str;
3075 
3076 			if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
3077 				str = "XPT_IMMEDIATE_NOTIFY";
3078 			else
3079 				str = "XPT_ACCEPT_TARGET_IO";
3080 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path,
3081 			    "%s: no state pointer found for %s\n",
3082 			    __func__, str);
3083 			ccb->ccb_h.status = CAM_DEV_NOT_THERE;
3084 			xpt_done(ccb);
3085 			break;
3086 		}
3087 		ccb->ccb_h.spriv_field0 = 0;
3088 		ccb->ccb_h.spriv_ptr1 = isp;
3089 
3090 		if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3091 			ccb->atio.tag_id = 0;
3092 			SLIST_INSERT_HEAD(&tptr->atios, &ccb->ccb_h, sim_links.sle);
3093 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
3094 			    "Put FREE ATIO\n");
3095 		} else if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
3096 			ccb->cin1.seq_id = ccb->cin1.tag_id = 0;
3097 			SLIST_INSERT_HEAD(&tptr->inots, &ccb->ccb_h, sim_links.sle);
3098 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
3099 			    "Put FREE INOT\n");
3100 		}
3101 		ccb->ccb_h.status = CAM_REQ_INPROG;
3102 		break;
3103 	}
3104 	case XPT_NOTIFY_ACKNOWLEDGE:		/* notify ack */
3105 	{
3106 		inot_private_data_t *ntp;
3107 
3108 		/*
3109 		 * XXX: Because we cannot guarantee that the path information in the notify acknowledge ccb
3110 		 * XXX: matches that for the immediate notify, we have to *search* for the notify structure
3111 		 */
3112 		/*
3113 		 * All the relevant path information is in the associated immediate notify
3114 		 */
3115 		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);
3116 		ntp = isp_find_ntpd(isp, XS_CHANNEL(ccb), ccb->cna2.tag_id, ccb->cna2.seq_id);
3117 		if (ntp == NULL) {
3118 			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__,
3119 			     ccb->cna2.tag_id, ccb->cna2.seq_id);
3120 			ccb->ccb_h.status = CAM_DEV_NOT_THERE;
3121 			xpt_done(ccb);
3122 			break;
3123 		}
3124 		if (isp_handle_platform_target_notify_ack(isp, &ntp->nt,
3125 		    (ccb->ccb_h.flags & CAM_SEND_STATUS) ? ccb->cna2.arg : 0)) {
3126 			cam_freeze_devq(ccb->ccb_h.path);
3127 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
3128 			ccb->ccb_h.status &= ~CAM_STATUS_MASK;
3129 			ccb->ccb_h.status |= CAM_REQUEUE_REQ;
3130 			break;
3131 		}
3132 		isp_put_ntpd(isp, XS_CHANNEL(ccb), ntp);
3133 		ccb->ccb_h.status = CAM_REQ_CMP;
3134 		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);
3135 		xpt_done(ccb);
3136 		break;
3137 	}
3138 	case XPT_CONT_TARGET_IO:
3139 		isp_target_start_ctio(isp, ccb, FROM_CAM);
3140 		break;
3141 #endif
3142 	case XPT_RESET_DEV:		/* BDR the specified SCSI device */
3143 		tgt = ccb->ccb_h.target_id;
3144 		tgt |= (bus << 16);
3145 
3146 		error = isp_control(isp, ISPCTL_RESET_DEV, bus, tgt);
3147 		if (error) {
3148 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3149 		} else {
3150 			/*
3151 			 * If we have a FC device, reset the Command
3152 			 * Reference Number, because the target will expect
3153 			 * that we re-start the CRN at 1 after a reset.
3154 			 */
3155 			if (IS_FC(isp))
3156 				isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3157 
3158 			ccb->ccb_h.status = CAM_REQ_CMP;
3159 		}
3160 		xpt_done(ccb);
3161 		break;
3162 	case XPT_ABORT:			/* Abort the specified CCB */
3163 	{
3164 		union ccb *accb = ccb->cab.abort_ccb;
3165 		switch (accb->ccb_h.func_code) {
3166 #ifdef	ISP_TARGET_MODE
3167 		case XPT_ACCEPT_TARGET_IO:
3168 			isp_abort_atio(isp, ccb);
3169 			break;
3170 		case XPT_IMMEDIATE_NOTIFY:
3171 			isp_abort_inot(isp, ccb);
3172 			break;
3173 #endif
3174 		case XPT_SCSI_IO:
3175 			error = isp_control(isp, ISPCTL_ABORT_CMD, accb);
3176 			if (error) {
3177 				ccb->ccb_h.status = CAM_UA_ABORT;
3178 			} else {
3179 				ccb->ccb_h.status = CAM_REQ_CMP;
3180 			}
3181 			break;
3182 		default:
3183 			ccb->ccb_h.status = CAM_REQ_INVALID;
3184 			break;
3185 		}
3186 		/*
3187 		 * This is not a queued CCB, so the caller expects it to be
3188 		 * complete when control is returned.
3189 		 */
3190 		break;
3191 	}
3192 #define	IS_CURRENT_SETTINGS(c)	(c->type == CTS_TYPE_CURRENT_SETTINGS)
3193 	case XPT_SET_TRAN_SETTINGS:	/* Nexus Settings */
3194 		cts = &ccb->cts;
3195 		if (!IS_CURRENT_SETTINGS(cts)) {
3196 			ccb->ccb_h.status = CAM_REQ_INVALID;
3197 			xpt_done(ccb);
3198 			break;
3199 		}
3200 		tgt = cts->ccb_h.target_id;
3201 		if (IS_SCSI(isp)) {
3202 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3203 			struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3204 			sdparam *sdp = SDPARAM(isp, bus);
3205 			uint16_t *dptr;
3206 
3207 			if (spi->valid == 0 && scsi->valid == 0) {
3208 				ccb->ccb_h.status = CAM_REQ_CMP;
3209 				xpt_done(ccb);
3210 				break;
3211 			}
3212 
3213 			/*
3214 			 * We always update (internally) from goal_flags
3215 			 * so any request to change settings just gets
3216 			 * vectored to that location.
3217 			 */
3218 			dptr = &sdp->isp_devparam[tgt].goal_flags;
3219 
3220 			if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3221 				if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
3222 					*dptr |= DPARM_DISC;
3223 				else
3224 					*dptr &= ~DPARM_DISC;
3225 			}
3226 
3227 			if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3228 				if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
3229 					*dptr |= DPARM_TQING;
3230 				else
3231 					*dptr &= ~DPARM_TQING;
3232 			}
3233 
3234 			if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3235 				if (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
3236 					*dptr |= DPARM_WIDE;
3237 				else
3238 					*dptr &= ~DPARM_WIDE;
3239 			}
3240 
3241 			/*
3242 			 * XXX: FIX ME
3243 			 */
3244 			if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) && (spi->valid & CTS_SPI_VALID_SYNC_RATE) && (spi->sync_period && spi->sync_offset)) {
3245 				*dptr |= DPARM_SYNC;
3246 				/*
3247 				 * XXX: CHECK FOR LEGALITY
3248 				 */
3249 				sdp->isp_devparam[tgt].goal_period = spi->sync_period;
3250 				sdp->isp_devparam[tgt].goal_offset = spi->sync_offset;
3251 			} else {
3252 				*dptr &= ~DPARM_SYNC;
3253 			}
3254 			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,
3255 			    sdp->isp_devparam[tgt].goal_offset, sdp->isp_devparam[tgt].goal_period);
3256 			sdp->isp_devparam[tgt].dev_update = 1;
3257 			sdp->update = 1;
3258 		}
3259 		ccb->ccb_h.status = CAM_REQ_CMP;
3260 		xpt_done(ccb);
3261 		break;
3262 	case XPT_GET_TRAN_SETTINGS:
3263 		cts = &ccb->cts;
3264 		tgt = cts->ccb_h.target_id;
3265 		if (IS_FC(isp)) {
3266 			fcparam *fcp = FCPARAM(isp, bus);
3267 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3268 			struct ccb_trans_settings_fc *fc = &cts->xport_specific.fc;
3269 
3270 			cts->protocol = PROTO_SCSI;
3271 			cts->protocol_version = SCSI_REV_2;
3272 			cts->transport = XPORT_FC;
3273 			cts->transport_version = 0;
3274 
3275 			scsi->valid = CTS_SCSI_VALID_TQ;
3276 			scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3277 			fc->valid = CTS_FC_VALID_SPEED;
3278 			fc->bitrate = 100000;
3279 			fc->bitrate *= fcp->isp_gbspeed;
3280 			if (tgt < MAX_FC_TARG) {
3281 				fcportdb_t *lp = &fcp->portdb[tgt];
3282 				fc->wwnn = lp->node_wwn;
3283 				fc->wwpn = lp->port_wwn;
3284 				fc->port = lp->portid;
3285 				fc->valid |= CTS_FC_VALID_WWNN | CTS_FC_VALID_WWPN | CTS_FC_VALID_PORT;
3286 			}
3287 		} else {
3288 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3289 			struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3290 			sdparam *sdp = SDPARAM(isp, bus);
3291 			uint16_t dval, pval, oval;
3292 
3293 			if (IS_CURRENT_SETTINGS(cts)) {
3294 				sdp->isp_devparam[tgt].dev_refresh = 1;
3295 				sdp->update = 1;
3296 				(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
3297 				dval = sdp->isp_devparam[tgt].actv_flags;
3298 				oval = sdp->isp_devparam[tgt].actv_offset;
3299 				pval = sdp->isp_devparam[tgt].actv_period;
3300 			} else {
3301 				dval = sdp->isp_devparam[tgt].nvrm_flags;
3302 				oval = sdp->isp_devparam[tgt].nvrm_offset;
3303 				pval = sdp->isp_devparam[tgt].nvrm_period;
3304 			}
3305 
3306 			cts->protocol = PROTO_SCSI;
3307 			cts->protocol_version = SCSI_REV_2;
3308 			cts->transport = XPORT_SPI;
3309 			cts->transport_version = 2;
3310 
3311 			spi->valid = 0;
3312 			scsi->valid = 0;
3313 			spi->flags = 0;
3314 			scsi->flags = 0;
3315 			if (dval & DPARM_DISC) {
3316 				spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3317 			}
3318 			if ((dval & DPARM_SYNC) && oval && pval) {
3319 				spi->sync_offset = oval;
3320 				spi->sync_period = pval;
3321 			} else {
3322 				spi->sync_offset = 0;
3323 				spi->sync_period = 0;
3324 			}
3325 			spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3326 			spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3327 			spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3328 			if (dval & DPARM_WIDE) {
3329 				spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3330 			} else {
3331 				spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3332 			}
3333 			if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3334 				scsi->valid = CTS_SCSI_VALID_TQ;
3335 				if (dval & DPARM_TQING) {
3336 					scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3337 				}
3338 				spi->valid |= CTS_SPI_VALID_DISC;
3339 			}
3340 			isp_prt(isp, ISP_LOGDEBUG0, "GET %s (%d.%d.%jx) to flags %x off %x per %x", IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM",
3341 			    bus, tgt, (uintmax_t)cts->ccb_h.target_lun, dval, oval, pval);
3342 		}
3343 		ccb->ccb_h.status = CAM_REQ_CMP;
3344 		xpt_done(ccb);
3345 		break;
3346 
3347 	case XPT_CALC_GEOMETRY:
3348 		cam_calc_geometry(&ccb->ccg, 1);
3349 		xpt_done(ccb);
3350 		break;
3351 
3352 	case XPT_RESET_BUS:		/* Reset the specified bus */
3353 		error = isp_control(isp, ISPCTL_RESET_BUS, bus);
3354 		if (error) {
3355 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3356 			xpt_done(ccb);
3357 			break;
3358 		}
3359 		if (bootverbose) {
3360 			xpt_print(ccb->ccb_h.path, "reset bus on channel %d\n", bus);
3361 		}
3362 		if (IS_FC(isp)) {
3363 			xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, 0);
3364 		} else {
3365 			xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, 0);
3366 		}
3367 		ccb->ccb_h.status = CAM_REQ_CMP;
3368 		xpt_done(ccb);
3369 		break;
3370 
3371 	case XPT_TERM_IO:		/* Terminate the I/O process */
3372 		ccb->ccb_h.status = CAM_REQ_INVALID;
3373 		xpt_done(ccb);
3374 		break;
3375 
3376 	case XPT_SET_SIM_KNOB:		/* Set SIM knobs */
3377 	{
3378 		struct ccb_sim_knob *kp = &ccb->knob;
3379 		fcparam *fcp;
3380 
3381 		if (!IS_FC(isp)) {
3382 			ccb->ccb_h.status = CAM_REQ_INVALID;
3383 			xpt_done(ccb);
3384 			break;
3385 		}
3386 
3387 		fcp = FCPARAM(isp, bus);
3388 
3389 		if (kp->xport_specific.fc.valid & KNOB_VALID_ADDRESS) {
3390 			fcp->isp_wwnn = ISP_FC_PC(isp, bus)->def_wwnn = kp->xport_specific.fc.wwnn;
3391 			fcp->isp_wwpn = ISP_FC_PC(isp, bus)->def_wwpn = kp->xport_specific.fc.wwpn;
3392 			isp_prt(isp, ISP_LOGALL, "Setting Channel %d wwns to 0x%jx 0x%jx", bus, fcp->isp_wwnn, fcp->isp_wwpn);
3393 		}
3394 		ccb->ccb_h.status = CAM_REQ_CMP;
3395 		if (kp->xport_specific.fc.valid & KNOB_VALID_ROLE) {
3396 			int rchange = 0;
3397 			int newrole = 0;
3398 
3399 			switch (kp->xport_specific.fc.role) {
3400 			case KNOB_ROLE_NONE:
3401 				if (fcp->role != ISP_ROLE_NONE) {
3402 					rchange = 1;
3403 					newrole = ISP_ROLE_NONE;
3404 				}
3405 				break;
3406 			case KNOB_ROLE_TARGET:
3407 				if (fcp->role != ISP_ROLE_TARGET) {
3408 					rchange = 1;
3409 					newrole = ISP_ROLE_TARGET;
3410 				}
3411 				break;
3412 			case KNOB_ROLE_INITIATOR:
3413 				if (fcp->role != ISP_ROLE_INITIATOR) {
3414 					rchange = 1;
3415 					newrole = ISP_ROLE_INITIATOR;
3416 				}
3417 				break;
3418 			case KNOB_ROLE_BOTH:
3419 				if (fcp->role != ISP_ROLE_BOTH) {
3420 					rchange = 1;
3421 					newrole = ISP_ROLE_BOTH;
3422 				}
3423 				break;
3424 			}
3425 			if (rchange) {
3426 				ISP_PATH_PRT(isp, ISP_LOGCONFIG, ccb->ccb_h.path, "changing role on from %d to %d\n", fcp->role, newrole);
3427 				if (isp_control(isp, ISPCTL_CHANGE_ROLE,
3428 				    bus, newrole) != 0) {
3429 					ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3430 					xpt_done(ccb);
3431 					break;
3432 				}
3433 			}
3434 		}
3435 		xpt_done(ccb);
3436 		break;
3437 	}
3438 	case XPT_GET_SIM_KNOB_OLD:	/* Get SIM knobs -- compat value */
3439 	case XPT_GET_SIM_KNOB:		/* Get SIM knobs */
3440 	{
3441 		struct ccb_sim_knob *kp = &ccb->knob;
3442 
3443 		if (IS_FC(isp)) {
3444 			fcparam *fcp;
3445 
3446 			fcp = FCPARAM(isp, bus);
3447 
3448 			kp->xport_specific.fc.wwnn = fcp->isp_wwnn;
3449 			kp->xport_specific.fc.wwpn = fcp->isp_wwpn;
3450 			switch (fcp->role) {
3451 			case ISP_ROLE_NONE:
3452 				kp->xport_specific.fc.role = KNOB_ROLE_NONE;
3453 				break;
3454 			case ISP_ROLE_TARGET:
3455 				kp->xport_specific.fc.role = KNOB_ROLE_TARGET;
3456 				break;
3457 			case ISP_ROLE_INITIATOR:
3458 				kp->xport_specific.fc.role = KNOB_ROLE_INITIATOR;
3459 				break;
3460 			case ISP_ROLE_BOTH:
3461 				kp->xport_specific.fc.role = KNOB_ROLE_BOTH;
3462 				break;
3463 			}
3464 			kp->xport_specific.fc.valid = KNOB_VALID_ADDRESS | KNOB_VALID_ROLE;
3465 			ccb->ccb_h.status = CAM_REQ_CMP;
3466 		} else {
3467 			ccb->ccb_h.status = CAM_REQ_INVALID;
3468 		}
3469 		xpt_done(ccb);
3470 		break;
3471 	}
3472 	case XPT_PATH_INQ:		/* Path routing inquiry */
3473 	{
3474 		struct ccb_pathinq *cpi = &ccb->cpi;
3475 
3476 		cpi->version_num = 1;
3477 #ifdef	ISP_TARGET_MODE
3478 		if (IS_FC(isp) && ISP_CAP_TMODE(isp) && ISP_CAP_SCCFW(isp))
3479 			cpi->target_sprt = PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3480 		else
3481 #endif
3482 			cpi->target_sprt = 0;
3483 		cpi->hba_eng_cnt = 0;
3484 		cpi->max_target = ISP_MAX_TARGETS(isp) - 1;
3485 		cpi->max_lun = ISP_MAX_LUNS(isp) == 0 ?
3486 		    255 : ISP_MAX_LUNS(isp) - 1;
3487 		cpi->bus_id = cam_sim_bus(sim);
3488 		if (sizeof (bus_size_t) > 4)
3489 			cpi->maxio = (ISP_NSEG64_MAX - 1) * PAGE_SIZE;
3490 		else
3491 			cpi->maxio = (ISP_NSEG_MAX - 1) * PAGE_SIZE;
3492 
3493 		if (IS_FC(isp)) {
3494 			fcparam *fcp = FCPARAM(isp, bus);
3495 
3496 			cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
3497 			cpi->hba_misc |= PIM_EXTLUNS | PIM_NOSCAN;
3498 
3499 			/*
3500 			 * Because our loop ID can shift from time to time,
3501 			 * make our initiator ID out of range of our bus.
3502 			 */
3503 			cpi->initiator_id = cpi->max_target + 1;
3504 
3505 			/*
3506 			 * Set base transfer capabilities for Fibre Channel, for this HBA.
3507 			 */
3508 			if (IS_25XX(isp)) {
3509 				cpi->base_transfer_speed = 8000000;
3510 			} else if (IS_24XX(isp)) {
3511 				cpi->base_transfer_speed = 4000000;
3512 			} else if (IS_23XX(isp)) {
3513 				cpi->base_transfer_speed = 2000000;
3514 			} else {
3515 				cpi->base_transfer_speed = 1000000;
3516 			}
3517 			cpi->hba_inquiry = PI_TAG_ABLE;
3518 			cpi->transport = XPORT_FC;
3519 			cpi->transport_version = 0;
3520 			cpi->xport_specific.fc.wwnn = fcp->isp_wwnn;
3521 			cpi->xport_specific.fc.wwpn = fcp->isp_wwpn;
3522 			cpi->xport_specific.fc.port = fcp->isp_portid;
3523 			cpi->xport_specific.fc.bitrate = fcp->isp_gbspeed * 1000;
3524 		} else {
3525 			sdparam *sdp = SDPARAM(isp, bus);
3526 			cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3527 			cpi->hba_misc = PIM_UNMAPPED;
3528 			cpi->initiator_id = sdp->isp_initiator_id;
3529 			cpi->base_transfer_speed = 3300;
3530 			cpi->transport = XPORT_SPI;
3531 			cpi->transport_version = 2;
3532 		}
3533 		cpi->protocol = PROTO_SCSI;
3534 		cpi->protocol_version = SCSI_REV_2;
3535 		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3536 		strlcpy(cpi->hba_vid, "Qlogic", HBA_IDLEN);
3537 		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3538 		cpi->unit_number = cam_sim_unit(sim);
3539 		cpi->ccb_h.status = CAM_REQ_CMP;
3540 		xpt_done(ccb);
3541 		break;
3542 	}
3543 	default:
3544 		ccb->ccb_h.status = CAM_REQ_INVALID;
3545 		xpt_done(ccb);
3546 		break;
3547 	}
3548 }
3549 
3550 void
3551 isp_done(XS_T *sccb)
3552 {
3553 	ispsoftc_t *isp = XS_ISP(sccb);
3554 	uint32_t status;
3555 
3556 	if (XS_NOERR(sccb))
3557 		XS_SETERR(sccb, CAM_REQ_CMP);
3558 
3559 	if ((sccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && (sccb->scsi_status != SCSI_STATUS_OK)) {
3560 		sccb->ccb_h.status &= ~CAM_STATUS_MASK;
3561 		if ((sccb->scsi_status == SCSI_STATUS_CHECK_COND) && (sccb->ccb_h.status & CAM_AUTOSNS_VALID) == 0) {
3562 			sccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
3563 		} else {
3564 			sccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3565 		}
3566 	}
3567 
3568 	sccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3569 	status = sccb->ccb_h.status & CAM_STATUS_MASK;
3570 	if (status != CAM_REQ_CMP &&
3571 	    (sccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
3572 		sccb->ccb_h.status |= CAM_DEV_QFRZN;
3573 		xpt_freeze_devq(sccb->ccb_h.path, 1);
3574 	}
3575 
3576 	if (ISP_PCMD(sccb)) {
3577 		if (callout_active(&PISP_PCMD(sccb)->wdog))
3578 			callout_stop(&PISP_PCMD(sccb)->wdog);
3579 		isp_free_pcmd(isp, (union ccb *) sccb);
3580 	}
3581 	xpt_done((union ccb *) sccb);
3582 }
3583 
3584 void
3585 isp_async(ispsoftc_t *isp, ispasync_t cmd, ...)
3586 {
3587 	int bus;
3588 	static const char prom[] = "Chan %d [%d] WWPN 0x%16jx PortID 0x%06x handle 0x%x %s %s";
3589 	char buf[64];
3590 	char *msg = NULL;
3591 	target_id_t tgt = 0;
3592 	fcportdb_t *lp;
3593 	struct isp_fc *fc;
3594 	struct cam_path *tmppath;
3595 	struct ac_contract ac;
3596 	struct ac_device_changed *adc;
3597 	va_list ap;
3598 
3599 	switch (cmd) {
3600 	case ISPASYNC_NEW_TGT_PARAMS:
3601 	{
3602 		struct ccb_trans_settings_scsi *scsi;
3603 		struct ccb_trans_settings_spi *spi;
3604 		int flags, tgt;
3605 		sdparam *sdp;
3606 		struct ccb_trans_settings cts;
3607 
3608 		memset(&cts, 0, sizeof (struct ccb_trans_settings));
3609 
3610 		va_start(ap, cmd);
3611 		bus = va_arg(ap, int);
3612 		tgt = va_arg(ap, int);
3613 		va_end(ap);
3614 		sdp = SDPARAM(isp, bus);
3615 
3616 		if (xpt_create_path(&tmppath, NULL, cam_sim_path(ISP_SPI_PC(isp, bus)->sim), tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
3617 			isp_prt(isp, ISP_LOGWARN, "isp_async cannot make temp path for %d.%d", tgt, bus);
3618 			break;
3619 		}
3620 		flags = sdp->isp_devparam[tgt].actv_flags;
3621 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
3622 		cts.protocol = PROTO_SCSI;
3623 		cts.transport = XPORT_SPI;
3624 
3625 		scsi = &cts.proto_specific.scsi;
3626 		spi = &cts.xport_specific.spi;
3627 
3628 		if (flags & DPARM_TQING) {
3629 			scsi->valid |= CTS_SCSI_VALID_TQ;
3630 			scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3631 		}
3632 
3633 		if (flags & DPARM_DISC) {
3634 			spi->valid |= CTS_SPI_VALID_DISC;
3635 			spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3636 		}
3637 		spi->flags |= CTS_SPI_VALID_BUS_WIDTH;
3638 		if (flags & DPARM_WIDE) {
3639 			spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3640 		} else {
3641 			spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3642 		}
3643 		if (flags & DPARM_SYNC) {
3644 			spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3645 			spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3646 			spi->sync_period = sdp->isp_devparam[tgt].actv_period;
3647 			spi->sync_offset = sdp->isp_devparam[tgt].actv_offset;
3648 		}
3649 		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);
3650 		xpt_setup_ccb(&cts.ccb_h, tmppath, 1);
3651 		xpt_async(AC_TRANSFER_NEG, tmppath, &cts);
3652 		xpt_free_path(tmppath);
3653 		break;
3654 	}
3655 	case ISPASYNC_BUS_RESET:
3656 	{
3657 		va_start(ap, cmd);
3658 		bus = va_arg(ap, int);
3659 		va_end(ap);
3660 		isp_prt(isp, ISP_LOGINFO, "SCSI bus reset on bus %d detected", bus);
3661 		if (IS_FC(isp)) {
3662 			xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, NULL);
3663 		} else {
3664 			xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, NULL);
3665 		}
3666 		break;
3667 	}
3668 	case ISPASYNC_LOOP_RESET:
3669 	{
3670 		uint16_t lipp;
3671 		fcparam *fcp;
3672 		va_start(ap, cmd);
3673 		bus = va_arg(ap, int);
3674 		va_end(ap);
3675 
3676 		lipp = ISP_READ(isp, OUTMAILBOX1);
3677 		fcp = FCPARAM(isp, bus);
3678 
3679 		isp_prt(isp, ISP_LOGINFO, "Chan %d LOOP Reset, LIP primitive %x", bus, lipp);
3680 		/*
3681 		 * Per FCP-4, a Reset LIP should result in a CRN reset. Other
3682 		 * LIPs and loop up/down events should never reset the CRN. For
3683 		 * an as of yet unknown reason, 24xx series cards (and
3684 		 * potentially others) can interrupt with a LIP Reset status
3685 		 * when no LIP reset came down the wire. Additionally, the LIP
3686 		 * primitive accompanying this status would not be a valid LIP
3687 		 * Reset primitive, but some variation of an invalid AL_PA
3688 		 * LIP. As a result, we have to verify the AL_PD in the LIP
3689 		 * addresses our port before blindly resetting.
3690 		*/
3691 		if (FCP_IS_DEST_ALPD(fcp, (lipp & 0x00FF)))
3692 			isp_fcp_reset_crn(isp, bus, /*tgt*/0, /*tgt_set*/ 0);
3693 		isp_loop_changed(isp, bus);
3694 		break;
3695 	}
3696 	case ISPASYNC_LIP:
3697 		if (msg == NULL)
3698 			msg = "LIP Received";
3699 		/* FALLTHROUGH */
3700 	case ISPASYNC_LOOP_DOWN:
3701 		if (msg == NULL)
3702 			msg = "LOOP Down";
3703 		/* FALLTHROUGH */
3704 	case ISPASYNC_LOOP_UP:
3705 		if (msg == NULL)
3706 			msg = "LOOP Up";
3707 		va_start(ap, cmd);
3708 		bus = va_arg(ap, int);
3709 		va_end(ap);
3710 		isp_loop_changed(isp, bus);
3711 		isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
3712 		break;
3713 	case ISPASYNC_DEV_ARRIVED:
3714 		va_start(ap, cmd);
3715 		bus = va_arg(ap, int);
3716 		lp = va_arg(ap, fcportdb_t *);
3717 		va_end(ap);
3718 		fc = ISP_FC_PC(isp, bus);
3719 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3720 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3721 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "arrived");
3722 		if ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
3723 		    (lp->prli_word3 & PRLI_WD3_TARGET_FUNCTION)) {
3724 			lp->is_target = 1;
3725 			isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3726 			isp_make_here(isp, lp, bus, tgt);
3727 		}
3728 		if ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
3729 		    (lp->prli_word3 & PRLI_WD3_INITIATOR_FUNCTION)) {
3730 			lp->is_initiator = 1;
3731 			ac.contract_number = AC_CONTRACT_DEV_CHG;
3732 			adc = (struct ac_device_changed *) ac.contract_data;
3733 			adc->wwpn = lp->port_wwn;
3734 			adc->port = lp->portid;
3735 			adc->target = tgt;
3736 			adc->arrived = 1;
3737 			xpt_async(AC_CONTRACT, fc->path, &ac);
3738 		}
3739 		break;
3740 	case ISPASYNC_DEV_CHANGED:
3741 	case ISPASYNC_DEV_STAYED:
3742 		va_start(ap, cmd);
3743 		bus = va_arg(ap, int);
3744 		lp = va_arg(ap, fcportdb_t *);
3745 		va_end(ap);
3746 		fc = ISP_FC_PC(isp, bus);
3747 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3748 		isp_gen_role_str(buf, sizeof (buf), lp->new_prli_word3);
3749 		if (cmd == ISPASYNC_DEV_CHANGED)
3750 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->new_portid, lp->handle, buf, "changed");
3751 		else
3752 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "stayed");
3753 
3754 		if (lp->is_target !=
3755 		    ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
3756 		     (lp->new_prli_word3 & PRLI_WD3_TARGET_FUNCTION))) {
3757 			lp->is_target = !lp->is_target;
3758 			if (lp->is_target) {
3759 				if (cmd == ISPASYNC_DEV_CHANGED)
3760 					isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3761 				isp_make_here(isp, lp, bus, tgt);
3762 			} else {
3763 				isp_make_gone(isp, lp, bus, tgt);
3764 				if (cmd == ISPASYNC_DEV_CHANGED)
3765 					isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3766 			}
3767 		}
3768 		if (lp->is_initiator !=
3769 		    ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
3770 		     (lp->new_prli_word3 & PRLI_WD3_INITIATOR_FUNCTION))) {
3771 			lp->is_initiator = !lp->is_initiator;
3772 			ac.contract_number = AC_CONTRACT_DEV_CHG;
3773 			adc = (struct ac_device_changed *) ac.contract_data;
3774 			adc->wwpn = lp->port_wwn;
3775 			adc->port = lp->portid;
3776 			adc->target = tgt;
3777 			adc->arrived = lp->is_initiator;
3778 			xpt_async(AC_CONTRACT, fc->path, &ac);
3779 		}
3780 		break;
3781 	case ISPASYNC_DEV_GONE:
3782 		va_start(ap, cmd);
3783 		bus = va_arg(ap, int);
3784 		lp = va_arg(ap, fcportdb_t *);
3785 		va_end(ap);
3786 		fc = ISP_FC_PC(isp, bus);
3787 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3788 		/*
3789 		 * If this has a virtual target or initiator set the isp_gdt
3790 		 * timer running on it to delay its departure.
3791 		 */
3792 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3793 		if (lp->is_target || lp->is_initiator) {
3794 			lp->state = FC_PORTDB_STATE_ZOMBIE;
3795 			lp->gone_timer = fc->gone_device_time;
3796 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone zombie");
3797 			if (fc->ready && !callout_active(&fc->gdt)) {
3798 				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);
3799 				callout_reset(&fc->gdt, hz, isp_gdt, fc);
3800 			}
3801 			break;
3802 		}
3803 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone");
3804 		break;
3805 	case ISPASYNC_CHANGE_NOTIFY:
3806 	{
3807 		char *msg;
3808 		int evt, nphdl, nlstate, portid, reason;
3809 
3810 		va_start(ap, cmd);
3811 		bus = va_arg(ap, int);
3812 		evt = va_arg(ap, int);
3813 		if (evt == ISPASYNC_CHANGE_PDB) {
3814 			nphdl = va_arg(ap, int);
3815 			nlstate = va_arg(ap, int);
3816 			reason = va_arg(ap, int);
3817 		} else if (evt == ISPASYNC_CHANGE_SNS) {
3818 			portid = va_arg(ap, int);
3819 		} else {
3820 			nphdl = NIL_HANDLE;
3821 			nlstate = reason = 0;
3822 		}
3823 		va_end(ap);
3824 
3825 		if (evt == ISPASYNC_CHANGE_PDB) {
3826 			int tgt_set = 0;
3827 			msg = "Port Database Changed";
3828 			isp_prt(isp, ISP_LOGINFO,
3829 			    "Chan %d %s (nphdl 0x%x state 0x%x reason 0x%x)",
3830 			    bus, msg, nphdl, nlstate, reason);
3831 			/*
3832 			 * Port database syncs are not sufficient for
3833 			 * determining that logins or logouts are done on the
3834 			 * loop, but this information is directly available from
3835 			 * the reason code from the incoming mbox. We must reset
3836 			 * the fcp crn on these events according to FCP-4
3837 			 */
3838 			switch (reason) {
3839 			case PDB24XX_AE_IMPL_LOGO_1:
3840 			case PDB24XX_AE_IMPL_LOGO_2:
3841 			case PDB24XX_AE_IMPL_LOGO_3:
3842 			case PDB24XX_AE_PLOGI_RCVD:
3843 			case PDB24XX_AE_PRLI_RCVD:
3844 			case PDB24XX_AE_PRLO_RCVD:
3845 			case PDB24XX_AE_LOGO_RCVD:
3846 			case PDB24XX_AE_PLOGI_DONE:
3847 			case PDB24XX_AE_PRLI_DONE:
3848 				/*
3849 				 * If the event is not global, twiddle tgt and
3850 				 * tgt_set to nominate only the target
3851 				 * associated with the nphdl.
3852 				 */
3853 				if (nphdl != PDB24XX_AE_GLOBAL) {
3854 					/* Break if we don't yet have the pdb */
3855 					if (!isp_find_pdb_by_handle(isp, bus, nphdl, &lp))
3856 						break;
3857 					tgt = FC_PORTDB_TGT(isp, bus, lp);
3858 					tgt_set = 1;
3859 				}
3860 				isp_fcp_reset_crn(isp, bus, tgt, tgt_set);
3861 				break;
3862 			default:
3863 				break; /* NOP */
3864 			}
3865 		} else if (evt == ISPASYNC_CHANGE_SNS) {
3866 			msg = "Name Server Database Changed";
3867 			isp_prt(isp, ISP_LOGINFO, "Chan %d %s (PortID 0x%06x)",
3868 			    bus, msg, portid);
3869 		} else {
3870 			msg = "Other Change Notify";
3871 			isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
3872 		}
3873 		isp_loop_changed(isp, bus);
3874 		break;
3875 	}
3876 #ifdef	ISP_TARGET_MODE
3877 	case ISPASYNC_TARGET_NOTIFY:
3878 	{
3879 		isp_notify_t *notify;
3880 		va_start(ap, cmd);
3881 		notify = va_arg(ap, isp_notify_t *);
3882 		va_end(ap);
3883 		switch (notify->nt_ncode) {
3884 		case NT_ABORT_TASK:
3885 		case NT_ABORT_TASK_SET:
3886 		case NT_CLEAR_ACA:
3887 		case NT_CLEAR_TASK_SET:
3888 		case NT_LUN_RESET:
3889 		case NT_TARGET_RESET:
3890 		case NT_QUERY_TASK_SET:
3891 		case NT_QUERY_ASYNC_EVENT:
3892 			/*
3893 			 * These are task management functions.
3894 			 */
3895 			isp_handle_platform_target_tmf(isp, notify);
3896 			break;
3897 		case NT_BUS_RESET:
3898 		case NT_LIP_RESET:
3899 		case NT_LINK_UP:
3900 		case NT_LINK_DOWN:
3901 		case NT_HBA_RESET:
3902 			/*
3903 			 * No action need be taken here.
3904 			 */
3905 			break;
3906 		case NT_GLOBAL_LOGOUT:
3907 		case NT_LOGOUT:
3908 			/*
3909 			 * This is device arrival/departure notification
3910 			 */
3911 			isp_handle_platform_target_notify_ack(isp, notify, 0);
3912 			break;
3913 		case NT_SRR:
3914 			isp_handle_platform_srr(isp, notify);
3915 			break;
3916 		default:
3917 			isp_prt(isp, ISP_LOGALL, "target notify code 0x%x", notify->nt_ncode);
3918 			isp_handle_platform_target_notify_ack(isp, notify, 0);
3919 			break;
3920 		}
3921 		break;
3922 	}
3923 	case ISPASYNC_TARGET_NOTIFY_ACK:
3924 	{
3925 		void *inot;
3926 		va_start(ap, cmd);
3927 		inot = va_arg(ap, void *);
3928 		va_end(ap);
3929 		if (isp_notify_ack(isp, inot)) {
3930 			isp_tna_t *tp = malloc(sizeof (*tp), M_DEVBUF, M_NOWAIT);
3931 			if (tp) {
3932 				tp->isp = isp;
3933 				memcpy(tp->data, inot, sizeof (tp->data));
3934 				tp->not = tp->data;
3935 				callout_init_mtx(&tp->timer, &isp->isp_lock, 0);
3936 				callout_reset(&tp->timer, 5,
3937 				    isp_refire_notify_ack, tp);
3938 			} else {
3939 				isp_prt(isp, ISP_LOGERR, "you lose- cannot allocate a notify refire");
3940 			}
3941 		}
3942 		break;
3943 	}
3944 	case ISPASYNC_TARGET_ACTION:
3945 	{
3946 		isphdr_t *hp;
3947 
3948 		va_start(ap, cmd);
3949 		hp = va_arg(ap, isphdr_t *);
3950 		va_end(ap);
3951 		switch (hp->rqs_entry_type) {
3952 		case RQSTYPE_ATIO:
3953 			isp_handle_platform_atio7(isp, (at7_entry_t *) hp);
3954 			break;
3955 		case RQSTYPE_ATIO2:
3956 			isp_handle_platform_atio2(isp, (at2_entry_t *) hp);
3957 			break;
3958 		case RQSTYPE_CTIO7:
3959 		case RQSTYPE_CTIO3:
3960 		case RQSTYPE_CTIO2:
3961 		case RQSTYPE_CTIO:
3962 			isp_handle_platform_ctio(isp, hp);
3963 			break;
3964 		default:
3965 			isp_prt(isp, ISP_LOGWARN, "%s: unhandled target action 0x%x",
3966 			    __func__, hp->rqs_entry_type);
3967 			break;
3968 		}
3969 		break;
3970 	}
3971 #endif
3972 	case ISPASYNC_FW_CRASH:
3973 	{
3974 		uint16_t mbox1, mbox6;
3975 		mbox1 = ISP_READ(isp, OUTMAILBOX1);
3976 		if (IS_DUALBUS(isp)) {
3977 			mbox6 = ISP_READ(isp, OUTMAILBOX6);
3978 		} else {
3979 			mbox6 = 0;
3980 		}
3981 		isp_prt(isp, ISP_LOGERR, "Internal Firmware Error on bus %d @ RISC Address 0x%x", mbox6, mbox1);
3982 #if 0
3983 		mbox1 = isp->isp_osinfo.mbox_sleep_ok;
3984 		isp->isp_osinfo.mbox_sleep_ok = 0;
3985 		isp_reinit(isp, 1);
3986 		isp->isp_osinfo.mbox_sleep_ok = mbox1;
3987 		isp_async(isp, ISPASYNC_FW_RESTARTED, NULL);
3988 #endif
3989 		break;
3990 	}
3991 	default:
3992 		isp_prt(isp, ISP_LOGERR, "unknown isp_async event %d", cmd);
3993 		break;
3994 	}
3995 }
3996 
3997 uint64_t
3998 isp_default_wwn(ispsoftc_t * isp, int chan, int isactive, int iswwnn)
3999 {
4000 	uint64_t seed;
4001 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
4002 
4003 	/* First try to use explicitly configured WWNs. */
4004 	seed = iswwnn ? fc->def_wwnn : fc->def_wwpn;
4005 	if (seed)
4006 		return (seed);
4007 
4008 	/* Otherwise try to use WWNs from NVRAM. */
4009 	if (isactive) {
4010 		seed = iswwnn ? FCPARAM(isp, chan)->isp_wwnn_nvram :
4011 		    FCPARAM(isp, chan)->isp_wwpn_nvram;
4012 		if (seed)
4013 			return (seed);
4014 	}
4015 
4016 	/* If still no WWNs, try to steal them from the first channel. */
4017 	if (chan > 0) {
4018 		seed = iswwnn ? ISP_FC_PC(isp, 0)->def_wwnn :
4019 		    ISP_FC_PC(isp, 0)->def_wwpn;
4020 		if (seed == 0) {
4021 			seed = iswwnn ? FCPARAM(isp, 0)->isp_wwnn_nvram :
4022 			    FCPARAM(isp, 0)->isp_wwpn_nvram;
4023 		}
4024 	}
4025 
4026 	/* If still nothing -- improvise. */
4027 	if (seed == 0) {
4028 		seed = 0x400000007F000000ull + device_get_unit(isp->isp_dev);
4029 		if (!iswwnn)
4030 			seed ^= 0x0100000000000000ULL;
4031 	}
4032 
4033 	/* For additional channels we have to improvise even more. */
4034 	if (!iswwnn && chan > 0) {
4035 		/*
4036 		 * We'll stick our channel number plus one first into bits
4037 		 * 57..59 and thence into bits 52..55 which allows for 8 bits
4038 		 * of channel which is enough for our maximum of 255 channels.
4039 		 */
4040 		seed ^= 0x0100000000000000ULL;
4041 		seed ^= ((uint64_t) (chan + 1) & 0xf) << 56;
4042 		seed ^= ((uint64_t) ((chan + 1) >> 4) & 0xf) << 52;
4043 	}
4044 	return (seed);
4045 }
4046 
4047 void
4048 isp_prt(ispsoftc_t *isp, int level, const char *fmt, ...)
4049 {
4050 	int loc;
4051 	char lbuf[200];
4052 	va_list ap;
4053 
4054 	if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
4055 		return;
4056 	}
4057 	snprintf(lbuf, sizeof (lbuf), "%s: ", device_get_nameunit(isp->isp_dev));
4058 	loc = strlen(lbuf);
4059 	va_start(ap, fmt);
4060 	vsnprintf(&lbuf[loc], sizeof (lbuf) - loc - 1, fmt, ap);
4061 	va_end(ap);
4062 	printf("%s\n", lbuf);
4063 }
4064 
4065 void
4066 isp_xs_prt(ispsoftc_t *isp, XS_T *xs, int level, const char *fmt, ...)
4067 {
4068 	va_list ap;
4069 	if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
4070 		return;
4071 	}
4072 	xpt_print_path(xs->ccb_h.path);
4073 	va_start(ap, fmt);
4074 	vprintf(fmt, ap);
4075 	va_end(ap);
4076 	printf("\n");
4077 }
4078 
4079 uint64_t
4080 isp_nanotime_sub(struct timespec *b, struct timespec *a)
4081 {
4082 	uint64_t elapsed;
4083 	struct timespec x = *b;
4084 	timespecsub(&x, a);
4085 	elapsed = GET_NANOSEC(&x);
4086 	if (elapsed == 0)
4087 		elapsed++;
4088 	return (elapsed);
4089 }
4090 
4091 int
4092 isp_mbox_acquire(ispsoftc_t *isp)
4093 {
4094 	if (isp->isp_osinfo.mboxbsy) {
4095 		return (1);
4096 	} else {
4097 		isp->isp_osinfo.mboxcmd_done = 0;
4098 		isp->isp_osinfo.mboxbsy = 1;
4099 		return (0);
4100 	}
4101 }
4102 
4103 void
4104 isp_mbox_wait_complete(ispsoftc_t *isp, mbreg_t *mbp)
4105 {
4106 	u_int t, to;
4107 
4108 	to = (mbp->timeout == 0) ? MBCMD_DEFAULT_TIMEOUT : mbp->timeout;
4109 	if (isp->isp_osinfo.mbox_sleep_ok) {
4110 		isp->isp_osinfo.mbox_sleep_ok = 0;
4111 		isp->isp_osinfo.mbox_sleeping = 1;
4112 		msleep_sbt(&isp->isp_osinfo.mboxcmd_done, &isp->isp_lock,
4113 		    PRIBIO, "ispmbx_sleep", to * SBT_1US, 0, 0);
4114 		isp->isp_osinfo.mbox_sleep_ok = 1;
4115 		isp->isp_osinfo.mbox_sleeping = 0;
4116 	} else {
4117 		for (t = 0; t < to; t += 100) {
4118 			if (isp->isp_osinfo.mboxcmd_done)
4119 				break;
4120 			ISP_RUN_ISR(isp);
4121 			if (isp->isp_osinfo.mboxcmd_done)
4122 				break;
4123 			ISP_DELAY(100);
4124 		}
4125 	}
4126 	if (isp->isp_osinfo.mboxcmd_done == 0) {
4127 		isp_prt(isp, ISP_LOGWARN, "%s Mailbox Command (0x%x) Timeout (%uus) (%s:%d)",
4128 		    isp->isp_osinfo.mbox_sleep_ok? "Interrupting" : "Polled",
4129 		    isp->isp_lastmbxcmd, to, mbp->func, mbp->lineno);
4130 		mbp->param[0] = MBOX_TIMEOUT;
4131 		isp->isp_osinfo.mboxcmd_done = 1;
4132 	}
4133 }
4134 
4135 void
4136 isp_mbox_notify_done(ispsoftc_t *isp)
4137 {
4138 	isp->isp_osinfo.mboxcmd_done = 1;
4139 	if (isp->isp_osinfo.mbox_sleeping)
4140 		wakeup(&isp->isp_osinfo.mboxcmd_done);
4141 }
4142 
4143 void
4144 isp_mbox_release(ispsoftc_t *isp)
4145 {
4146 	isp->isp_osinfo.mboxbsy = 0;
4147 }
4148 
4149 int
4150 isp_fc_scratch_acquire(ispsoftc_t *isp, int chan)
4151 {
4152 	int ret = 0;
4153 	if (isp->isp_osinfo.pc.fc[chan].fcbsy) {
4154 		ret = -1;
4155 	} else {
4156 		isp->isp_osinfo.pc.fc[chan].fcbsy = 1;
4157 	}
4158 	return (ret);
4159 }
4160 
4161 void
4162 isp_platform_intr(void *arg)
4163 {
4164 	ispsoftc_t *isp = arg;
4165 
4166 	ISP_LOCK(isp);
4167 	ISP_RUN_ISR(isp);
4168 	ISP_UNLOCK(isp);
4169 }
4170 
4171 void
4172 isp_platform_intr_resp(void *arg)
4173 {
4174 	ispsoftc_t *isp = arg;
4175 
4176 	ISP_LOCK(isp);
4177 	isp_intr_respq(isp);
4178 	ISP_UNLOCK(isp);
4179 
4180 	/* We have handshake enabled, so explicitly complete interrupt */
4181 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
4182 }
4183 
4184 void
4185 isp_platform_intr_atio(void *arg)
4186 {
4187 	ispsoftc_t *isp = arg;
4188 
4189 	ISP_LOCK(isp);
4190 #ifdef	ISP_TARGET_MODE
4191 	isp_intr_atioq(isp);
4192 #endif
4193 	ISP_UNLOCK(isp);
4194 
4195 	/* We have handshake enabled, so explicitly complete interrupt */
4196 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
4197 }
4198 
4199 void
4200 isp_common_dmateardown(ispsoftc_t *isp, struct ccb_scsiio *csio, uint32_t hdl)
4201 {
4202 	if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4203 		bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTREAD);
4204 	} else {
4205 		bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTWRITE);
4206 	}
4207 	bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
4208 }
4209 
4210 /*
4211  * Reset the command reference number for all LUNs on a specific target
4212  * (needed when a target arrives again) or for all targets on a port
4213  * (needed for events like a LIP).
4214  */
4215 void
4216 isp_fcp_reset_crn(ispsoftc_t *isp, int chan, uint32_t tgt, int tgt_set)
4217 {
4218 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
4219 	struct isp_nexus *nxp;
4220 	int i;
4221 
4222 	if (tgt_set == 0)
4223 		isp_prt(isp, ISP_LOGDEBUG0,
4224 		    "Chan %d resetting CRN on all targets", chan);
4225 	else
4226 		isp_prt(isp, ISP_LOGDEBUG0,
4227 		    "Chan %d resetting CRN on target %u", chan, tgt);
4228 
4229 	for (i = 0; i < NEXUS_HASH_WIDTH; i++) {
4230 		for (nxp = fc->nexus_hash[i]; nxp != NULL; nxp = nxp->next) {
4231 			if (tgt_set == 0 || tgt == nxp->tgt)
4232 				nxp->crnseed = 0;
4233 		}
4234 	}
4235 }
4236 
4237 int
4238 isp_fcp_next_crn(ispsoftc_t *isp, uint8_t *crnp, XS_T *cmd)
4239 {
4240 	lun_id_t lun;
4241 	uint32_t chan, tgt;
4242 	struct isp_fc *fc;
4243 	struct isp_nexus *nxp;
4244 	int idx;
4245 
4246 	if (IS_2100(isp))
4247 		return (0);
4248 
4249 	chan = XS_CHANNEL(cmd);
4250 	tgt = XS_TGT(cmd);
4251 	lun = XS_LUN(cmd);
4252 	fc = &isp->isp_osinfo.pc.fc[chan];
4253 	idx = NEXUS_HASH(tgt, lun);
4254 	nxp = fc->nexus_hash[idx];
4255 
4256 	while (nxp) {
4257 		if (nxp->tgt == tgt && nxp->lun == lun)
4258 			break;
4259 		nxp = nxp->next;
4260 	}
4261 	if (nxp == NULL) {
4262 		nxp = fc->nexus_free_list;
4263 		if (nxp == NULL) {
4264 			nxp = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_ZERO|M_NOWAIT);
4265 			if (nxp == NULL) {
4266 				return (-1);
4267 			}
4268 		} else {
4269 			fc->nexus_free_list = nxp->next;
4270 		}
4271 		nxp->tgt = tgt;
4272 		nxp->lun = lun;
4273 		nxp->next = fc->nexus_hash[idx];
4274 		fc->nexus_hash[idx] = nxp;
4275 	}
4276 	if (nxp->crnseed == 0)
4277 		nxp->crnseed = 1;
4278 	*crnp = nxp->crnseed++;
4279 	return (0);
4280 }
4281 
4282 /*
4283  * We enter with the lock held
4284  */
4285 void
4286 isp_timer(void *arg)
4287 {
4288 	ispsoftc_t *isp = arg;
4289 #ifdef	ISP_TARGET_MODE
4290 	isp_tmcmd_restart(isp);
4291 #endif
4292 	callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
4293 }
4294 
4295 isp_ecmd_t *
4296 isp_get_ecmd(ispsoftc_t *isp)
4297 {
4298 	isp_ecmd_t *ecmd = isp->isp_osinfo.ecmd_free;
4299 	if (ecmd) {
4300 		isp->isp_osinfo.ecmd_free = ecmd->next;
4301 	}
4302 	return (ecmd);
4303 }
4304 
4305 void
4306 isp_put_ecmd(ispsoftc_t *isp, isp_ecmd_t *ecmd)
4307 {
4308 	ecmd->next = isp->isp_osinfo.ecmd_free;
4309 	isp->isp_osinfo.ecmd_free = ecmd;
4310 }
4311