xref: /freebsd/sys/dev/isp/isp_freebsd.c (revision 2e184b72c3a85be3504bcfedb40a28f331a7e63e)
1 /*-
2  * Copyright (c) 1997-2009 by Matthew Jacob
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice immediately at the beginning of the file, without modification,
10  *    this list of conditions, and the following disclaimer.
11  * 2. The name of the author may not be used to endorse or promote products
12  *    derived from this software without specific prior written permission.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
18  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 /*
28  * Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
29  */
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <dev/isp/isp_freebsd.h>
34 #include <sys/unistd.h>
35 #include <sys/kthread.h>
36 #include <sys/conf.h>
37 #include <sys/module.h>
38 #include <sys/ioccom.h>
39 #include <dev/isp/isp_ioctl.h>
40 #include <sys/devicestat.h>
41 #include <cam/cam_periph.h>
42 #include <cam/cam_xpt_periph.h>
43 
44 MODULE_VERSION(isp, 1);
45 MODULE_DEPEND(isp, cam, 1, 1, 1);
46 int isp_announced = 0;
47 int isp_loop_down_limit = 60;	/* default loop down limit */
48 int isp_quickboot_time = 7;	/* don't wait more than N secs for loop up */
49 int isp_gone_device_time = 30;	/* grace time before reporting device lost */
50 static const char prom3[] = "Chan %d [%u] PortID 0x%06x Departed because of %s";
51 
52 static void isp_freeze_loopdown(ispsoftc_t *, int);
53 static void isp_loop_changed(ispsoftc_t *isp, int chan);
54 static d_ioctl_t ispioctl;
55 static void isp_cam_async(void *, uint32_t, struct cam_path *, void *);
56 static void isp_poll(struct cam_sim *);
57 static timeout_t isp_watchdog;
58 static timeout_t isp_gdt;
59 static task_fn_t isp_gdt_task;
60 static void isp_kthread(void *);
61 static void isp_action(struct cam_sim *, union ccb *);
62 static int isp_timer_count;
63 static void isp_timer(void *);
64 
65 static struct cdevsw isp_cdevsw = {
66 	.d_version =	D_VERSION,
67 	.d_ioctl =	ispioctl,
68 	.d_name =	"isp",
69 };
70 
71 static int
72 isp_role_sysctl(SYSCTL_HANDLER_ARGS)
73 {
74 	ispsoftc_t *isp = (ispsoftc_t *)arg1;
75 	int chan = arg2;
76 	int error, old, value;
77 
78 	value = FCPARAM(isp, chan)->role;
79 
80 	error = sysctl_handle_int(oidp, &value, 0, req);
81 	if ((error != 0) || (req->newptr == NULL))
82 		return (error);
83 
84 	if (value < ISP_ROLE_NONE || value > ISP_ROLE_BOTH)
85 		return (EINVAL);
86 
87 	ISP_LOCK(isp);
88 	old = FCPARAM(isp, chan)->role;
89 
90 	/* We don't allow target mode switch from here. */
91 	value = (old & ISP_ROLE_TARGET) | (value & ISP_ROLE_INITIATOR);
92 
93 	/* If nothing has changed -- we are done. */
94 	if (value == old) {
95 		ISP_UNLOCK(isp);
96 		return (0);
97 	}
98 
99 	/* Actually change the role. */
100 	error = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, value);
101 	ISP_UNLOCK(isp);
102 	return (error);
103 }
104 
105 static int
106 isp_attach_chan(ispsoftc_t *isp, struct cam_devq *devq, int chan)
107 {
108 	struct ccb_setasync csa;
109 	struct cam_sim *sim;
110 	struct cam_path *path;
111 #ifdef	ISP_TARGET_MODE
112 	int i;
113 #endif
114 
115 	/*
116 	 * Construct our SIM entry.
117 	 */
118 	sim = cam_sim_alloc(isp_action, isp_poll, "isp", isp, device_get_unit(isp->isp_dev), &isp->isp_osinfo.lock, isp->isp_maxcmds, isp->isp_maxcmds, devq);
119 
120 	if (sim == NULL) {
121 		return (ENOMEM);
122 	}
123 
124 	ISP_LOCK(isp);
125 	if (xpt_bus_register(sim, isp->isp_dev, chan) != CAM_SUCCESS) {
126 		ISP_UNLOCK(isp);
127 		cam_sim_free(sim, FALSE);
128 		return (EIO);
129 	}
130 	ISP_UNLOCK(isp);
131 	if (xpt_create_path(&path, NULL, cam_sim_path(sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
132 		ISP_LOCK(isp);
133 		xpt_bus_deregister(cam_sim_path(sim));
134 		ISP_UNLOCK(isp);
135 		cam_sim_free(sim, FALSE);
136 		return (ENXIO);
137 	}
138 	xpt_setup_ccb(&csa.ccb_h, path, 5);
139 	csa.ccb_h.func_code = XPT_SASYNC_CB;
140 	csa.event_enable = AC_LOST_DEVICE;
141 	csa.callback = isp_cam_async;
142 	csa.callback_arg = sim;
143 
144 	ISP_LOCK(isp);
145 	xpt_action((union ccb *)&csa);
146 	ISP_UNLOCK(isp);
147 
148 	if (IS_SCSI(isp)) {
149 		struct isp_spi *spi = ISP_SPI_PC(isp, chan);
150 		spi->sim = sim;
151 		spi->path = path;
152 #ifdef	ISP_TARGET_MODE
153 		TAILQ_INIT(&spi->waitq);
154 		STAILQ_INIT(&spi->ntfree);
155 		for (i = 0; i < ATPDPSIZE; i++)
156 			STAILQ_INSERT_TAIL(&spi->ntfree, &spi->ntpool[i], next);
157 		LIST_INIT(&spi->atfree);
158 		for (i = ATPDPSIZE-1; i >= 0; i--)
159 			LIST_INSERT_HEAD(&spi->atfree, &spi->atpool[i], next);
160 		for (i = 0; i < ATPDPHASHSIZE; i++)
161 			LIST_INIT(&spi->atused[i]);
162 #endif
163 	} else {
164 		fcparam *fcp = FCPARAM(isp, chan);
165 		struct isp_fc *fc = ISP_FC_PC(isp, chan);
166 		struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(isp->isp_osinfo.dev);
167 		struct sysctl_oid *tree = device_get_sysctl_tree(isp->isp_osinfo.dev);
168 		char name[16];
169 
170 		ISP_LOCK(isp);
171 		fc->sim = sim;
172 		fc->path = path;
173 		fc->isp = isp;
174 		fc->ready = 1;
175 
176 		callout_init_mtx(&fc->gdt, &isp->isp_osinfo.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 	}
242 	return (0);
243 }
244 
245 static void
246 isp_detach_chan(ispsoftc_t *isp, int chan)
247 {
248 	struct cam_sim *sim;
249 	struct cam_path *path;
250 	struct ccb_setasync csa;
251 	int *num_threads;
252 
253 	ISP_GET_PC(isp, chan, sim, sim);
254 	ISP_GET_PC(isp, chan, path, path);
255 	ISP_GET_PC_ADDR(isp, chan, num_threads, num_threads);
256 
257 	xpt_setup_ccb(&csa.ccb_h, path, 5);
258 	csa.ccb_h.func_code = XPT_SASYNC_CB;
259 	csa.event_enable = 0;
260 	csa.callback = isp_cam_async;
261 	csa.callback_arg = sim;
262 	xpt_action((union ccb *)&csa);
263 	xpt_free_path(path);
264 	xpt_bus_deregister(cam_sim_path(sim));
265 	cam_sim_free(sim, FALSE);
266 
267 	/* Wait for the channel's spawned threads to exit. */
268 	wakeup(isp->isp_osinfo.pc.ptr);
269 	while (*num_threads != 0)
270 		mtx_sleep(isp, &isp->isp_osinfo.lock, PRIBIO, "isp_reap", 100);
271 }
272 
273 int
274 isp_attach(ispsoftc_t *isp)
275 {
276 	const char *nu = device_get_nameunit(isp->isp_osinfo.dev);
277 	int du = device_get_unit(isp->isp_dev);
278 	int chan;
279 
280 	/*
281 	 * Create the device queue for our SIM(s).
282 	 */
283 	isp->isp_osinfo.devq = cam_simq_alloc(isp->isp_maxcmds);
284 	if (isp->isp_osinfo.devq == NULL) {
285 		return (EIO);
286 	}
287 
288 	for (chan = 0; chan < isp->isp_nchan; chan++) {
289 		if (isp_attach_chan(isp, isp->isp_osinfo.devq, chan)) {
290 			goto unwind;
291 		}
292 	}
293 
294 	callout_init_mtx(&isp->isp_osinfo.tmo, &isp->isp_osinfo.lock, 0);
295 	isp_timer_count = hz >> 2;
296 	callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
297 	isp->isp_osinfo.timer_active = 1;
298 
299 	isp->isp_osinfo.cdev = make_dev(&isp_cdevsw, du, UID_ROOT, GID_OPERATOR, 0600, "%s", nu);
300 	if (isp->isp_osinfo.cdev) {
301 		isp->isp_osinfo.cdev->si_drv1 = isp;
302 	}
303 	return (0);
304 
305 unwind:
306 	while (--chan >= 0) {
307 		struct cam_sim *sim;
308 		struct cam_path *path;
309 
310 		ISP_GET_PC(isp, chan, sim, sim);
311 		ISP_GET_PC(isp, chan, path, path);
312 		xpt_free_path(path);
313 		ISP_LOCK(isp);
314 		xpt_bus_deregister(cam_sim_path(sim));
315 		ISP_UNLOCK(isp);
316 		cam_sim_free(sim, FALSE);
317 	}
318 	if (isp->isp_osinfo.cdev) {
319 		destroy_dev(isp->isp_osinfo.cdev);
320 		isp->isp_osinfo.cdev = NULL;
321 	}
322 	cam_simq_free(isp->isp_osinfo.devq);
323 	isp->isp_osinfo.devq = NULL;
324 	return (-1);
325 }
326 
327 int
328 isp_detach(ispsoftc_t *isp)
329 {
330 	struct cam_sim *sim;
331 	int chan;
332 
333 	ISP_LOCK(isp);
334 	for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1) {
335 		ISP_GET_PC(isp, chan, sim, sim);
336 		if (sim->refcount > 2) {
337 			ISP_UNLOCK(isp);
338 			return (EBUSY);
339 		}
340 	}
341 	/* Tell spawned threads that we're exiting. */
342 	isp->isp_osinfo.is_exiting = 1;
343 	if (isp->isp_osinfo.timer_active) {
344 		callout_stop(&isp->isp_osinfo.tmo);
345 		isp->isp_osinfo.timer_active = 0;
346 	}
347 	for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1)
348 		isp_detach_chan(isp, chan);
349 	ISP_UNLOCK(isp);
350 
351 	if (isp->isp_osinfo.cdev) {
352 		destroy_dev(isp->isp_osinfo.cdev);
353 		isp->isp_osinfo.cdev = NULL;
354 	}
355 	if (isp->isp_osinfo.devq != NULL) {
356 		cam_simq_free(isp->isp_osinfo.devq);
357 		isp->isp_osinfo.devq = NULL;
358 	}
359 	return (0);
360 }
361 
362 static void
363 isp_freeze_loopdown(ispsoftc_t *isp, int chan)
364 {
365 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
366 
367 	if (fc->sim == NULL)
368 		return;
369 	if (fc->simqfrozen == 0) {
370 		isp_prt(isp, ISP_LOGDEBUG0,
371 		    "Chan %d Freeze simq (loopdown)", chan);
372 		fc->simqfrozen = SIMQFRZ_LOOPDOWN;
373 		xpt_hold_boot();
374 		xpt_freeze_simq(fc->sim, 1);
375 	} else {
376 		isp_prt(isp, ISP_LOGDEBUG0,
377 		    "Chan %d Mark simq frozen (loopdown)", chan);
378 		fc->simqfrozen |= SIMQFRZ_LOOPDOWN;
379 	}
380 }
381 
382 static void
383 isp_unfreeze_loopdown(ispsoftc_t *isp, int chan)
384 {
385 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
386 
387 	if (fc->sim == NULL)
388 		return;
389 	int wasfrozen = fc->simqfrozen & SIMQFRZ_LOOPDOWN;
390 	fc->simqfrozen &= ~SIMQFRZ_LOOPDOWN;
391 	if (wasfrozen && fc->simqfrozen == 0) {
392 		isp_prt(isp, ISP_LOGDEBUG0,
393 		    "Chan %d Release simq", chan);
394 		xpt_release_simq(fc->sim, 1);
395 		xpt_release_boot();
396 	}
397 }
398 
399 static int
400 ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
401 {
402 	ispsoftc_t *isp;
403 	int nr, chan, retval = ENOTTY;
404 
405 	isp = dev->si_drv1;
406 
407 	switch (c) {
408 	case ISP_SDBLEV:
409 	{
410 		int olddblev = isp->isp_dblev;
411 		isp->isp_dblev = *(int *)addr;
412 		*(int *)addr = olddblev;
413 		retval = 0;
414 		break;
415 	}
416 	case ISP_GETROLE:
417 		chan = *(int *)addr;
418 		if (chan < 0 || chan >= isp->isp_nchan) {
419 			retval = -ENXIO;
420 			break;
421 		}
422 		if (IS_FC(isp)) {
423 			*(int *)addr = FCPARAM(isp, chan)->role;
424 		} else {
425 			*(int *)addr = ISP_ROLE_INITIATOR;
426 		}
427 		retval = 0;
428 		break;
429 	case ISP_SETROLE:
430 		if (IS_SCSI(isp))
431 			break;
432 		nr = *(int *)addr;
433 		chan = nr >> 8;
434 		if (chan < 0 || chan >= isp->isp_nchan) {
435 			retval = -ENXIO;
436 			break;
437 		}
438 		nr &= 0xff;
439 		if (nr & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) {
440 			retval = EINVAL;
441 			break;
442 		}
443 		ISP_LOCK(isp);
444 		*(int *)addr = FCPARAM(isp, chan)->role;
445 		retval = isp_control(isp, ISPCTL_CHANGE_ROLE, chan, nr);
446 		ISP_UNLOCK(isp);
447 		retval = 0;
448 		break;
449 
450 	case ISP_RESETHBA:
451 		ISP_LOCK(isp);
452 		isp_reinit(isp, 0);
453 		ISP_UNLOCK(isp);
454 		retval = 0;
455 		break;
456 
457 	case ISP_RESCAN:
458 		if (IS_FC(isp)) {
459 			chan = *(int *)addr;
460 			if (chan < 0 || chan >= isp->isp_nchan) {
461 				retval = -ENXIO;
462 				break;
463 			}
464 			ISP_LOCK(isp);
465 			if (isp_fc_runstate(isp, chan, 5 * 1000000) != LOOP_READY) {
466 				retval = EIO;
467 			} else {
468 				retval = 0;
469 			}
470 			ISP_UNLOCK(isp);
471 		}
472 		break;
473 
474 	case ISP_FC_LIP:
475 		if (IS_FC(isp)) {
476 			chan = *(int *)addr;
477 			if (chan < 0 || chan >= isp->isp_nchan) {
478 				retval = -ENXIO;
479 				break;
480 			}
481 			ISP_LOCK(isp);
482 			if (isp_control(isp, ISPCTL_SEND_LIP, chan)) {
483 				retval = EIO;
484 			} else {
485 				retval = 0;
486 			}
487 			ISP_UNLOCK(isp);
488 		}
489 		break;
490 	case ISP_FC_GETDINFO:
491 	{
492 		struct isp_fc_device *ifc = (struct isp_fc_device *) addr;
493 		fcportdb_t *lp;
494 
495 		if (IS_SCSI(isp)) {
496 			break;
497 		}
498 		if (ifc->loopid >= MAX_FC_TARG) {
499 			retval = EINVAL;
500 			break;
501 		}
502 		lp = &FCPARAM(isp, ifc->chan)->portdb[ifc->loopid];
503 		if (lp->state != FC_PORTDB_STATE_NIL) {
504 			ifc->role = (lp->prli_word3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
505 			ifc->loopid = lp->handle;
506 			ifc->portid = lp->portid;
507 			ifc->node_wwn = lp->node_wwn;
508 			ifc->port_wwn = lp->port_wwn;
509 			retval = 0;
510 		} else {
511 			retval = ENODEV;
512 		}
513 		break;
514 	}
515 	case ISP_FC_GETHINFO:
516 	{
517 		struct isp_hba_device *hba = (struct isp_hba_device *) addr;
518 		int chan = hba->fc_channel;
519 
520 		if (chan < 0 || chan >= isp->isp_nchan) {
521 			retval = ENXIO;
522 			break;
523 		}
524 		hba->fc_fw_major = ISP_FW_MAJORX(isp->isp_fwrev);
525 		hba->fc_fw_minor = ISP_FW_MINORX(isp->isp_fwrev);
526 		hba->fc_fw_micro = ISP_FW_MICROX(isp->isp_fwrev);
527 		hba->fc_nchannels = isp->isp_nchan;
528 		if (IS_FC(isp)) {
529 			hba->fc_nports = MAX_FC_TARG;
530 			hba->fc_speed = FCPARAM(isp, hba->fc_channel)->isp_gbspeed;
531 			hba->fc_topology = FCPARAM(isp, chan)->isp_topo + 1;
532 			hba->fc_loopid = FCPARAM(isp, chan)->isp_loopid;
533 			hba->nvram_node_wwn = FCPARAM(isp, chan)->isp_wwnn_nvram;
534 			hba->nvram_port_wwn = FCPARAM(isp, chan)->isp_wwpn_nvram;
535 			hba->active_node_wwn = FCPARAM(isp, chan)->isp_wwnn;
536 			hba->active_port_wwn = FCPARAM(isp, chan)->isp_wwpn;
537 		} else {
538 			hba->fc_nports = MAX_TARGETS;
539 			hba->fc_speed = 0;
540 			hba->fc_topology = 0;
541 			hba->nvram_node_wwn = 0ull;
542 			hba->nvram_port_wwn = 0ull;
543 			hba->active_node_wwn = 0ull;
544 			hba->active_port_wwn = 0ull;
545 		}
546 		retval = 0;
547 		break;
548 	}
549 	case ISP_TSK_MGMT:
550 	{
551 		int needmarker;
552 		struct isp_fc_tsk_mgmt *fct = (struct isp_fc_tsk_mgmt *) addr;
553 		uint16_t nphdl;
554 		mbreg_t mbs;
555 
556 		if (IS_SCSI(isp)) {
557 			break;
558 		}
559 
560 		chan = fct->chan;
561 		if (chan < 0 || chan >= isp->isp_nchan) {
562 			retval = -ENXIO;
563 			break;
564 		}
565 
566 		needmarker = retval = 0;
567 		nphdl = fct->loopid;
568 		ISP_LOCK(isp);
569 		if (IS_24XX(isp)) {
570 			void *reqp;
571 			uint8_t resp[QENTRY_LEN];
572 			isp24xx_tmf_t tmf;
573 			isp24xx_statusreq_t sp;
574 			fcparam *fcp = FCPARAM(isp, chan);
575 			fcportdb_t *lp;
576 			int i;
577 
578 			for (i = 0; i < MAX_FC_TARG; i++) {
579 				lp = &fcp->portdb[i];
580 				if (lp->handle == nphdl) {
581 					break;
582 				}
583 			}
584 			if (i == MAX_FC_TARG) {
585 				retval = ENXIO;
586 				ISP_UNLOCK(isp);
587 				break;
588 			}
589 			ISP_MEMZERO(&tmf, sizeof(tmf));
590 			tmf.tmf_header.rqs_entry_type = RQSTYPE_TSK_MGMT;
591 			tmf.tmf_header.rqs_entry_count = 1;
592 			tmf.tmf_nphdl = lp->handle;
593 			tmf.tmf_delay = 2;
594 			tmf.tmf_timeout = 4;
595 			tmf.tmf_tidlo = lp->portid;
596 			tmf.tmf_tidhi = lp->portid >> 16;
597 			tmf.tmf_vpidx = ISP_GET_VPIDX(isp, chan);
598 			tmf.tmf_lun[1] = fct->lun & 0xff;
599 			if (fct->lun >= 256) {
600 				tmf.tmf_lun[0] = 0x40 | (fct->lun >> 8);
601 			}
602 			switch (fct->action) {
603 			case IPT_CLEAR_ACA:
604 				tmf.tmf_flags = ISP24XX_TMF_CLEAR_ACA;
605 				break;
606 			case IPT_TARGET_RESET:
607 				tmf.tmf_flags = ISP24XX_TMF_TARGET_RESET;
608 				needmarker = 1;
609 				break;
610 			case IPT_LUN_RESET:
611 				tmf.tmf_flags = ISP24XX_TMF_LUN_RESET;
612 				needmarker = 1;
613 				break;
614 			case IPT_CLEAR_TASK_SET:
615 				tmf.tmf_flags = ISP24XX_TMF_CLEAR_TASK_SET;
616 				needmarker = 1;
617 				break;
618 			case IPT_ABORT_TASK_SET:
619 				tmf.tmf_flags = ISP24XX_TMF_ABORT_TASK_SET;
620 				needmarker = 1;
621 				break;
622 			default:
623 				retval = EINVAL;
624 				break;
625 			}
626 			if (retval) {
627 				ISP_UNLOCK(isp);
628 				break;
629 			}
630 
631 			/* Prepare space for response in memory */
632 			memset(resp, 0xff, sizeof(resp));
633 			tmf.tmf_handle = isp_allocate_handle(isp, resp,
634 			    ISP_HANDLE_CTRL);
635 			if (tmf.tmf_handle == 0) {
636 				isp_prt(isp, ISP_LOGERR,
637 				    "%s: TMF of Chan %d out of handles",
638 				    __func__, chan);
639 				ISP_UNLOCK(isp);
640 				retval = ENOMEM;
641 				break;
642 			}
643 
644 			/* Send request and wait for response. */
645 			reqp = isp_getrqentry(isp);
646 			if (reqp == NULL) {
647 				isp_prt(isp, ISP_LOGERR,
648 				    "%s: TMF of Chan %d out of rqent",
649 				    __func__, chan);
650 				isp_destroy_handle(isp, tmf.tmf_handle);
651 				ISP_UNLOCK(isp);
652 				retval = EIO;
653 				break;
654 			}
655 			isp_put_24xx_tmf(isp, &tmf, (isp24xx_tmf_t *)reqp);
656 			if (isp->isp_dblev & ISP_LOGDEBUG1)
657 				isp_print_bytes(isp, "IOCB TMF", QENTRY_LEN, reqp);
658 			ISP_SYNC_REQUEST(isp);
659 			if (msleep(resp, &isp->isp_lock, 0, "TMF", 5*hz) == EWOULDBLOCK) {
660 				isp_prt(isp, ISP_LOGERR,
661 				    "%s: TMF of Chan %d timed out",
662 				    __func__, chan);
663 				isp_destroy_handle(isp, tmf.tmf_handle);
664 				ISP_UNLOCK(isp);
665 				retval = EIO;
666 				break;
667 			}
668 			if (isp->isp_dblev & ISP_LOGDEBUG1)
669 				isp_print_bytes(isp, "IOCB TMF response", QENTRY_LEN, resp);
670 			isp_get_24xx_response(isp, (isp24xx_statusreq_t *)resp, &sp);
671 
672 			if (sp.req_completion_status != 0)
673 				retval = EIO;
674 			else if (needmarker)
675 				fcp->sendmarker = 1;
676 		} else {
677 			MBSINIT(&mbs, 0, MBLOGALL, 0);
678 			if (ISP_CAP_2KLOGIN(isp) == 0) {
679 				nphdl <<= 8;
680 			}
681 			switch (fct->action) {
682 			case IPT_CLEAR_ACA:
683 				mbs.param[0] = MBOX_CLEAR_ACA;
684 				mbs.param[1] = nphdl;
685 				mbs.param[2] = fct->lun;
686 				break;
687 			case IPT_TARGET_RESET:
688 				mbs.param[0] = MBOX_TARGET_RESET;
689 				mbs.param[1] = nphdl;
690 				needmarker = 1;
691 				break;
692 			case IPT_LUN_RESET:
693 				mbs.param[0] = MBOX_LUN_RESET;
694 				mbs.param[1] = nphdl;
695 				mbs.param[2] = fct->lun;
696 				needmarker = 1;
697 				break;
698 			case IPT_CLEAR_TASK_SET:
699 				mbs.param[0] = MBOX_CLEAR_TASK_SET;
700 				mbs.param[1] = nphdl;
701 				mbs.param[2] = fct->lun;
702 				needmarker = 1;
703 				break;
704 			case IPT_ABORT_TASK_SET:
705 				mbs.param[0] = MBOX_ABORT_TASK_SET;
706 				mbs.param[1] = nphdl;
707 				mbs.param[2] = fct->lun;
708 				needmarker = 1;
709 				break;
710 			default:
711 				retval = EINVAL;
712 				break;
713 			}
714 			if (retval == 0) {
715 				if (needmarker) {
716 					FCPARAM(isp, chan)->sendmarker = 1;
717 				}
718 				retval = isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs);
719 				if (retval) {
720 					retval = EIO;
721 				}
722 			}
723 		}
724 		ISP_UNLOCK(isp);
725 		break;
726 	}
727 	default:
728 		break;
729 	}
730 	return (retval);
731 }
732 
733 /*
734  * Local Inlines
735  */
736 
737 static ISP_INLINE int isp_get_pcmd(ispsoftc_t *, union ccb *);
738 static ISP_INLINE void isp_free_pcmd(ispsoftc_t *, union ccb *);
739 
740 static ISP_INLINE int
741 isp_get_pcmd(ispsoftc_t *isp, union ccb *ccb)
742 {
743 	ISP_PCMD(ccb) = isp->isp_osinfo.pcmd_free;
744 	if (ISP_PCMD(ccb) == NULL) {
745 		return (-1);
746 	}
747 	isp->isp_osinfo.pcmd_free = ((struct isp_pcmd *)ISP_PCMD(ccb))->next;
748 	return (0);
749 }
750 
751 static ISP_INLINE void
752 isp_free_pcmd(ispsoftc_t *isp, union ccb *ccb)
753 {
754 	if (ISP_PCMD(ccb)) {
755 #ifdef	ISP_TARGET_MODE
756 		PISP_PCMD(ccb)->datalen = 0;
757 		PISP_PCMD(ccb)->totslen = 0;
758 		PISP_PCMD(ccb)->cumslen = 0;
759 		PISP_PCMD(ccb)->crn = 0;
760 #endif
761 		PISP_PCMD(ccb)->next = isp->isp_osinfo.pcmd_free;
762 		isp->isp_osinfo.pcmd_free = ISP_PCMD(ccb);
763 		ISP_PCMD(ccb) = NULL;
764 	}
765 }
766 
767 /*
768  * Put the target mode functions here, because some are inlines
769  */
770 #ifdef	ISP_TARGET_MODE
771 static ISP_INLINE tstate_t *get_lun_statep(ispsoftc_t *, int, lun_id_t);
772 static atio_private_data_t *isp_get_atpd(ispsoftc_t *, int, uint32_t);
773 static atio_private_data_t *isp_find_atpd(ispsoftc_t *, int, uint32_t);
774 static void isp_put_atpd(ispsoftc_t *, int, atio_private_data_t *);
775 static inot_private_data_t *isp_get_ntpd(ispsoftc_t *, int);
776 static inot_private_data_t *isp_find_ntpd(ispsoftc_t *, int, uint32_t, uint32_t);
777 static void isp_put_ntpd(ispsoftc_t *, int, inot_private_data_t *);
778 static cam_status create_lun_state(ispsoftc_t *, int, struct cam_path *, tstate_t **);
779 static void destroy_lun_state(ispsoftc_t *, int, tstate_t *);
780 static void isp_enable_lun(ispsoftc_t *, union ccb *);
781 static void isp_disable_lun(ispsoftc_t *, union ccb *);
782 static timeout_t isp_refire_putback_atio;
783 static timeout_t isp_refire_notify_ack;
784 static void isp_complete_ctio(union ccb *);
785 static void isp_target_putback_atio(union ccb *);
786 enum Start_Ctio_How { FROM_CAM, FROM_TIMER, FROM_SRR, FROM_CTIO_DONE };
787 static void isp_target_start_ctio(ispsoftc_t *, union ccb *, enum Start_Ctio_How);
788 static void isp_handle_platform_atio2(ispsoftc_t *, at2_entry_t *);
789 static void isp_handle_platform_atio7(ispsoftc_t *, at7_entry_t *);
790 static void isp_handle_platform_ctio(ispsoftc_t *, void *);
791 static int isp_handle_platform_target_notify_ack(ispsoftc_t *, isp_notify_t *, uint32_t rsp);
792 static void isp_handle_platform_target_tmf(ispsoftc_t *, isp_notify_t *);
793 static void isp_target_mark_aborted_early(ispsoftc_t *, int chan, tstate_t *, uint32_t);
794 
795 static ISP_INLINE tstate_t *
796 get_lun_statep(ispsoftc_t *isp, int bus, lun_id_t lun)
797 {
798 	tstate_t *tptr = NULL;
799 	struct tslist *lhp;
800 
801 	if (bus < isp->isp_nchan) {
802 		ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
803 		SLIST_FOREACH(tptr, lhp, next) {
804 			if (tptr->ts_lun == lun)
805 				return (tptr);
806 		}
807 	}
808 	return (NULL);
809 }
810 
811 static int
812 isp_atio_restart(ispsoftc_t *isp, int bus, tstate_t *tptr)
813 {
814 	inot_private_data_t *ntp;
815 	struct ntpdlist rq;
816 
817 	if (STAILQ_EMPTY(&tptr->restart_queue))
818 		return (0);
819 	STAILQ_INIT(&rq);
820 	STAILQ_CONCAT(&rq, &tptr->restart_queue);
821 	while ((ntp = STAILQ_FIRST(&rq)) != NULL) {
822 		STAILQ_REMOVE_HEAD(&rq, next);
823 		if (IS_24XX(isp)) {
824 			isp_prt(isp, ISP_LOGTDEBUG0,
825 			    "%s: restarting resrc deprived %x", __func__,
826 			    ((at7_entry_t *)ntp->data)->at_rxid);
827 			isp_handle_platform_atio7(isp, (at7_entry_t *) ntp->data);
828 		} else {
829 			isp_prt(isp, ISP_LOGTDEBUG0,
830 			    "%s: restarting resrc deprived %x", __func__,
831 			    ((at2_entry_t *)ntp->data)->at_rxid);
832 			isp_handle_platform_atio2(isp, (at2_entry_t *) ntp->data);
833 		}
834 		isp_put_ntpd(isp, bus, ntp);
835 		if (!STAILQ_EMPTY(&tptr->restart_queue))
836 			break;
837 	}
838 	if (!STAILQ_EMPTY(&rq)) {
839 		STAILQ_CONCAT(&rq, &tptr->restart_queue);
840 		STAILQ_CONCAT(&tptr->restart_queue, &rq);
841 	}
842 	return (!STAILQ_EMPTY(&tptr->restart_queue));
843 }
844 
845 static void
846 isp_tmcmd_restart(ispsoftc_t *isp)
847 {
848 	tstate_t *tptr;
849 	union ccb *ccb;
850 	struct tslist *lhp;
851 	struct isp_ccbq *waitq;
852 	int bus, i;
853 
854 	for (bus = 0; bus < isp->isp_nchan; bus++) {
855 		for (i = 0; i < LUN_HASH_SIZE; i++) {
856 			ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
857 			SLIST_FOREACH(tptr, lhp, next)
858 				isp_atio_restart(isp, bus, tptr);
859 		}
860 
861 		/*
862 		 * We only need to do this once per channel.
863 		 */
864 		ISP_GET_PC_ADDR(isp, bus, waitq, waitq);
865 		ccb = (union ccb *)TAILQ_FIRST(waitq);
866 		if (ccb != NULL) {
867 			TAILQ_REMOVE(waitq, &ccb->ccb_h, periph_links.tqe);
868 			isp_target_start_ctio(isp, ccb, FROM_TIMER);
869 		}
870 	}
871 }
872 
873 static atio_private_data_t *
874 isp_get_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
875 {
876 	struct atpdlist *atfree;
877 	struct atpdlist *atused;
878 	atio_private_data_t *atp;
879 
880 	ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
881 	atp = LIST_FIRST(atfree);
882 	if (atp) {
883 		LIST_REMOVE(atp, next);
884 		atp->tag = tag;
885 		ISP_GET_PC(isp, chan, atused, atused);
886 		LIST_INSERT_HEAD(&atused[ATPDPHASH(tag)], atp, next);
887 	}
888 	return (atp);
889 }
890 
891 static atio_private_data_t *
892 isp_find_atpd(ispsoftc_t *isp, int chan, uint32_t tag)
893 {
894 	struct atpdlist *atused;
895 	atio_private_data_t *atp;
896 
897 	ISP_GET_PC(isp, chan, atused, atused);
898 	LIST_FOREACH(atp, &atused[ATPDPHASH(tag)], next) {
899 		if (atp->tag == tag)
900 			return (atp);
901 	}
902 	return (NULL);
903 }
904 
905 static void
906 isp_put_atpd(ispsoftc_t *isp, int chan, atio_private_data_t *atp)
907 {
908 	struct atpdlist *atfree;
909 
910 	if (atp->ests) {
911 		isp_put_ecmd(isp, atp->ests);
912 	}
913 	LIST_REMOVE(atp, next);
914 	memset(atp, 0, sizeof (*atp));
915 	ISP_GET_PC_ADDR(isp, chan, atfree, atfree);
916 	LIST_INSERT_HEAD(atfree, atp, next);
917 }
918 
919 static void
920 isp_dump_atpd(ispsoftc_t *isp, int chan)
921 {
922 	atio_private_data_t *atp, *atpool;
923 	const char *states[8] = { "Free", "ATIO", "CAM", "CTIO", "LAST_CTIO", "PDON", "?6", "7" };
924 
925 	ISP_GET_PC(isp, chan, atpool, atpool);
926 	for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
927 		if (atp->state == ATPD_STATE_FREE)
928 			continue;
929 		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",
930 		    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]);
931 	}
932 }
933 
934 static inot_private_data_t *
935 isp_get_ntpd(ispsoftc_t *isp, int chan)
936 {
937 	struct ntpdlist *ntfree;
938 	inot_private_data_t *ntp;
939 
940 	ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
941 	ntp = STAILQ_FIRST(ntfree);
942 	if (ntp)
943 		STAILQ_REMOVE_HEAD(ntfree, next);
944 	return (ntp);
945 }
946 
947 static inot_private_data_t *
948 isp_find_ntpd(ispsoftc_t *isp, int chan, uint32_t tag_id, uint32_t seq_id)
949 {
950 	inot_private_data_t *ntp, *ntp2;
951 
952 	ISP_GET_PC(isp, chan, ntpool, ntp);
953 	ISP_GET_PC_ADDR(isp, chan, ntpool[ATPDPSIZE], ntp2);
954 	for (; ntp < ntp2; ntp++) {
955 		if (ntp->tag_id == tag_id && ntp->seq_id == seq_id)
956 			return (ntp);
957 	}
958 	return (NULL);
959 }
960 
961 static void
962 isp_put_ntpd(ispsoftc_t *isp, int chan, inot_private_data_t *ntp)
963 {
964 	struct ntpdlist *ntfree;
965 
966 	ntp->tag_id = ntp->seq_id = 0;
967 	ISP_GET_PC_ADDR(isp, chan, ntfree, ntfree);
968 	STAILQ_INSERT_HEAD(ntfree, ntp, next);
969 }
970 
971 static cam_status
972 create_lun_state(ispsoftc_t *isp, int bus, struct cam_path *path, tstate_t **rslt)
973 {
974 	lun_id_t lun;
975 	struct tslist *lhp;
976 	tstate_t *tptr;
977 
978 	lun = xpt_path_lun_id(path);
979 	if (lun != CAM_LUN_WILDCARD) {
980 		if (ISP_MAX_LUNS(isp) > 0 && lun >= ISP_MAX_LUNS(isp)) {
981 			return (CAM_LUN_INVALID);
982 		}
983 	}
984 	tptr = malloc(sizeof (tstate_t), M_DEVBUF, M_NOWAIT|M_ZERO);
985 	if (tptr == NULL) {
986 		return (CAM_RESRC_UNAVAIL);
987 	}
988 	tptr->ts_lun = lun;
989 	SLIST_INIT(&tptr->atios);
990 	SLIST_INIT(&tptr->inots);
991 	ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
992 	SLIST_INSERT_HEAD(lhp, tptr, next);
993 	*rslt = tptr;
994 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, path, "created tstate\n");
995 	return (CAM_REQ_CMP);
996 }
997 
998 static void
999 destroy_lun_state(ispsoftc_t *isp, int bus, tstate_t *tptr)
1000 {
1001 	union ccb *ccb;
1002 	struct tslist *lhp;
1003 	inot_private_data_t *ntp;
1004 
1005 	while ((ccb = (union ccb *)SLIST_FIRST(&tptr->atios)) != NULL) {
1006 		SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1007 		ccb->ccb_h.status = CAM_REQ_ABORTED;
1008 		xpt_done(ccb);
1009 	};
1010 	while ((ccb = (union ccb *)SLIST_FIRST(&tptr->inots)) != NULL) {
1011 		SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
1012 		ccb->ccb_h.status = CAM_REQ_ABORTED;
1013 		xpt_done(ccb);
1014 	}
1015 	while ((ntp = STAILQ_FIRST(&tptr->restart_queue)) != NULL) {
1016 		isp_endcmd(isp, ntp->data, NIL_HANDLE, bus, SCSI_STATUS_BUSY, 0);
1017 		STAILQ_REMOVE_HEAD(&tptr->restart_queue, next);
1018 		isp_put_ntpd(isp, bus, ntp);
1019 	}
1020 	ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(tptr->ts_lun)], lhp);
1021 	SLIST_REMOVE(lhp, tptr, tstate, next);
1022 	free(tptr, M_DEVBUF);
1023 }
1024 
1025 static void
1026 isp_enable_lun(ispsoftc_t *isp, union ccb *ccb)
1027 {
1028 	tstate_t *tptr;
1029 	int bus;
1030 	target_id_t target;
1031 	lun_id_t lun;
1032 
1033 	if (!IS_FC(isp) || !ISP_CAP_TMODE(isp) || !ISP_CAP_SCCFW(isp)) {
1034 		xpt_print(ccb->ccb_h.path, "Target mode is not supported\n");
1035 		ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
1036 		xpt_done(ccb);
1037 		return;
1038 	}
1039 
1040 	/*
1041 	 * We only support either target and lun both wildcard
1042 	 * or target and lun both non-wildcard.
1043 	 */
1044 	bus = XS_CHANNEL(ccb);
1045 	target = ccb->ccb_h.target_id;
1046 	lun = ccb->ccb_h.target_lun;
1047 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
1048 	    "enabling lun %jx\n", (uintmax_t)lun);
1049 	if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
1050 		ccb->ccb_h.status = CAM_LUN_INVALID;
1051 		xpt_done(ccb);
1052 		return;
1053 	}
1054 
1055 	/* Create the state pointer. It should not already exist. */
1056 	tptr = get_lun_statep(isp, bus, lun);
1057 	if (tptr) {
1058 		ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
1059 		xpt_done(ccb);
1060 		return;
1061 	}
1062 	ccb->ccb_h.status = create_lun_state(isp, bus, ccb->ccb_h.path, &tptr);
1063 	if (ccb->ccb_h.status != CAM_REQ_CMP) {
1064 		xpt_done(ccb);
1065 		return;
1066 	}
1067 
1068 	ccb->ccb_h.status = CAM_REQ_CMP;
1069 	xpt_done(ccb);
1070 }
1071 
1072 static void
1073 isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
1074 {
1075 	tstate_t *tptr = NULL;
1076 	int bus;
1077 	target_id_t target;
1078 	lun_id_t lun;
1079 
1080 	bus = XS_CHANNEL(ccb);
1081 	target = ccb->ccb_h.target_id;
1082 	lun = ccb->ccb_h.target_lun;
1083 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path,
1084 	    "disabling lun %jx\n", (uintmax_t)lun);
1085 	if ((target == CAM_TARGET_WILDCARD) != (lun == CAM_LUN_WILDCARD)) {
1086 		ccb->ccb_h.status = CAM_LUN_INVALID;
1087 		xpt_done(ccb);
1088 		return;
1089 	}
1090 
1091 	/* Find the state pointer. */
1092 	if ((tptr = get_lun_statep(isp, bus, lun)) == NULL) {
1093 		ccb->ccb_h.status = CAM_PATH_INVALID;
1094 		xpt_done(ccb);
1095 		return;
1096 	}
1097 
1098 	destroy_lun_state(isp, bus, tptr);
1099 	ccb->ccb_h.status = CAM_REQ_CMP;
1100 	xpt_done(ccb);
1101 }
1102 
1103 static void
1104 isp_target_start_ctio(ispsoftc_t *isp, union ccb *ccb, enum Start_Ctio_How how)
1105 {
1106 	int fctape, sendstatus, resid;
1107 	fcparam *fcp;
1108 	atio_private_data_t *atp;
1109 	struct ccb_scsiio *cso;
1110 	struct isp_ccbq *waitq;
1111 	uint32_t dmaresult, handle, xfrlen, sense_length, tmp;
1112 	uint8_t local[QENTRY_LEN];
1113 
1114 	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,
1115 	    (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0, ((ccb->ccb_h.flags & CAM_SEND_SENSE)? ccb->csio.sense_len : 0));
1116 
1117 	ISP_GET_PC_ADDR(isp, XS_CHANNEL(ccb), waitq, waitq);
1118 	switch (how) {
1119 	case FROM_CAM:
1120 		/*
1121 		 * Insert at the tail of the list, if any, waiting CTIO CCBs
1122 		 */
1123 		TAILQ_INSERT_TAIL(waitq, &ccb->ccb_h, periph_links.tqe);
1124 		break;
1125 	case FROM_TIMER:
1126 	case FROM_SRR:
1127 	case FROM_CTIO_DONE:
1128 		TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1129 		break;
1130 	}
1131 
1132 	while ((ccb = (union ccb *) TAILQ_FIRST(waitq)) != NULL) {
1133 		TAILQ_REMOVE(waitq, &ccb->ccb_h, periph_links.tqe);
1134 
1135 		cso = &ccb->csio;
1136 		xfrlen = cso->dxfer_len;
1137 		if (xfrlen == 0) {
1138 			if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
1139 				ISP_PATH_PRT(isp, ISP_LOGERR, ccb->ccb_h.path, "a data transfer length of zero but no status to send is wrong\n");
1140 				ccb->ccb_h.status = CAM_REQ_INVALID;
1141 				xpt_done(ccb);
1142 				continue;
1143 			}
1144 		}
1145 
1146 		atp = isp_find_atpd(isp, XS_CHANNEL(ccb), cso->tag_id);
1147 		if (atp == NULL) {
1148 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] cannot find private data adjunct in %s", __func__, cso->tag_id, __func__);
1149 			isp_dump_atpd(isp, XS_CHANNEL(ccb));
1150 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1151 			xpt_done(ccb);
1152 			continue;
1153 		}
1154 
1155 		/*
1156 		 * Is this command a dead duck?
1157 		 */
1158 		if (atp->dead) {
1159 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] not sending a CTIO for a dead command", __func__, cso->tag_id);
1160 			ccb->ccb_h.status = CAM_REQ_ABORTED;
1161 			xpt_done(ccb);
1162 			continue;
1163 		}
1164 
1165 		/*
1166 		 * Check to make sure we're still in target mode.
1167 		 */
1168 		fcp = FCPARAM(isp, XS_CHANNEL(ccb));
1169 		if ((fcp->role & ISP_ROLE_TARGET) == 0) {
1170 			isp_prt(isp, ISP_LOGERR, "%s: [0x%x] stopping sending a CTIO because we're no longer in target mode", __func__, cso->tag_id);
1171 			ccb->ccb_h.status = CAM_PROVIDE_FAIL;
1172 			xpt_done(ccb);
1173 			continue;
1174 		}
1175 
1176 		/*
1177 		 * We're only handling ATPD_CCB_OUTSTANDING outstanding CCB at a time (one of which
1178 		 * could be split into two CTIOs to split data and status).
1179 		 */
1180 		if (atp->ctcnt >= ATPD_CCB_OUTSTANDING) {
1181 			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);
1182 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1183 			break;
1184 		}
1185 
1186 		/*
1187 		 * Does the initiator expect FC-Tape style responses?
1188 		 */
1189 		if ((atp->word3 & PRLI_WD3_RETRY) && fcp->fctape_enabled) {
1190 			fctape = 1;
1191 		} else {
1192 			fctape = 0;
1193 		}
1194 
1195 		/*
1196 		 * If we already did the data xfer portion of a CTIO that sends data
1197 		 * and status, don't do it again and do the status portion now.
1198 		 */
1199 		if (atp->sendst) {
1200 			isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] now sending synthesized status orig_dl=%u xfered=%u bit=%u",
1201 			    cso->tag_id, atp->orig_datalen, atp->bytes_xfered, atp->bytes_in_transit);
1202 			xfrlen = 0;	/* we already did the data transfer */
1203 			atp->sendst = 0;
1204 		}
1205 		if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
1206 			sendstatus = 1;
1207 		} else {
1208 			sendstatus = 0;
1209 		}
1210 
1211 		if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
1212 			KASSERT((sendstatus != 0), ("how can you have CAM_SEND_SENSE w/o CAM_SEND_STATUS?"));
1213 			/*
1214 			 * Sense length is not the entire sense data structure size. Periph
1215 			 * drivers don't seem to be setting sense_len to reflect the actual
1216 			 * size. We'll peek inside to get the right amount.
1217 			 */
1218 			sense_length = cso->sense_len;
1219 
1220 			/*
1221 			 * This 'cannot' happen
1222 			 */
1223 			if (sense_length > (XCMD_SIZE - MIN_FCP_RESPONSE_SIZE)) {
1224 				sense_length = XCMD_SIZE - MIN_FCP_RESPONSE_SIZE;
1225 			}
1226 		} else {
1227 			sense_length = 0;
1228 		}
1229 
1230 		memset(local, 0, QENTRY_LEN);
1231 
1232 		/*
1233 		 * Check for overflow
1234 		 */
1235 		tmp = atp->bytes_xfered + atp->bytes_in_transit;
1236 		if (xfrlen > 0 && tmp > atp->orig_datalen) {
1237 			isp_prt(isp, ISP_LOGERR,
1238 			    "%s: [0x%x] data overflow by %u bytes", __func__,
1239 			    cso->tag_id, tmp + xfrlen - atp->orig_datalen);
1240 			ccb->ccb_h.status = CAM_DATA_RUN_ERR;
1241 			xpt_done(ccb);
1242 			continue;
1243 		}
1244 		if (xfrlen > atp->orig_datalen - tmp) {
1245 			xfrlen = atp->orig_datalen - tmp;
1246 			if (xfrlen == 0 && !sendstatus) {
1247 				cso->resid = cso->dxfer_len;
1248 				ccb->ccb_h.status = CAM_REQ_CMP;
1249 				xpt_done(ccb);
1250 				continue;
1251 			}
1252 		}
1253 
1254 		if (IS_24XX(isp)) {
1255 			ct7_entry_t *cto = (ct7_entry_t *) local;
1256 
1257 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
1258 			cto->ct_header.rqs_entry_count = 1;
1259 			cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
1260 			ATPD_SET_SEQNO(cto, atp);
1261 			cto->ct_nphdl = atp->nphdl;
1262 			cto->ct_rxid = atp->tag;
1263 			cto->ct_iid_lo = atp->sid;
1264 			cto->ct_iid_hi = atp->sid >> 16;
1265 			cto->ct_oxid = atp->oxid;
1266 			cto->ct_vpidx = ISP_GET_VPIDX(isp, XS_CHANNEL(ccb));
1267 			cto->ct_timeout = (XS_TIME(ccb) + 999) / 1000;
1268 			cto->ct_flags = atp->tattr << CT7_TASK_ATTR_SHIFT;
1269 
1270 			/*
1271 			 * Mode 1, status, no data. Only possible when we are sending status, have
1272 			 * no data to transfer, and any sense data can fit into a ct7_entry_t.
1273 			 *
1274 			 * Mode 2, status, no data. We have to use this in the case that
1275 			 * the sense data won't fit into a ct7_entry_t.
1276 			 *
1277 			 */
1278 			if (sendstatus && xfrlen == 0) {
1279 				cto->ct_flags |= CT7_SENDSTATUS | CT7_NO_DATA;
1280 				resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
1281 				if (sense_length <= MAXRESPLEN_24XX) {
1282 					cto->ct_flags |= CT7_FLAG_MODE1;
1283 					cto->ct_scsi_status = cso->scsi_status;
1284 					if (resid < 0) {
1285 						cto->ct_resid = -resid;
1286 						cto->ct_scsi_status |= (FCP_RESID_OVERFLOW << 8);
1287 					} else if (resid > 0) {
1288 						cto->ct_resid = resid;
1289 						cto->ct_scsi_status |= (FCP_RESID_UNDERFLOW << 8);
1290 					}
1291 					if (fctape) {
1292 						cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1293 					}
1294 					if (sense_length) {
1295 						cto->ct_scsi_status |= (FCP_SNSLEN_VALID << 8);
1296 						cto->rsp.m1.ct_resplen = cto->ct_senselen = sense_length;
1297 						memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
1298 					}
1299 				} else {
1300 					bus_addr_t addr;
1301 					char buf[XCMD_SIZE];
1302 					fcp_rsp_iu_t *rp;
1303 
1304 					if (atp->ests == NULL) {
1305 						atp->ests = isp_get_ecmd(isp);
1306 						if (atp->ests == NULL) {
1307 							TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1308 							break;
1309 						}
1310 					}
1311 					memset(buf, 0, sizeof (buf));
1312 					rp = (fcp_rsp_iu_t *)buf;
1313 					if (fctape) {
1314 						cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1315 						rp->fcp_rsp_bits |= FCP_CONF_REQ;
1316 					}
1317 					cto->ct_flags |= CT7_FLAG_MODE2;
1318 	        			rp->fcp_rsp_scsi_status = cso->scsi_status;
1319 					if (resid < 0) {
1320 						rp->fcp_rsp_resid = -resid;
1321 						rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
1322 					} else if (resid > 0) {
1323 						rp->fcp_rsp_resid = resid;
1324 						rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
1325 					}
1326 					if (sense_length) {
1327 	        				rp->fcp_rsp_snslen = sense_length;
1328 						cto->ct_senselen = sense_length;
1329 						rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
1330 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1331 						memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
1332 					} else {
1333 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1334 					}
1335 					if (isp->isp_dblev & ISP_LOGTDEBUG1) {
1336 						isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
1337 					}
1338 					addr = isp->isp_osinfo.ecmd_dma;
1339 					addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
1340 					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,
1341 					    (uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
1342 					cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
1343 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_base = DMA_LO32(addr);
1344 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_basehi = DMA_HI32(addr);
1345 					cto->rsp.m2.ct_fcp_rsp_iudata.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1346 				}
1347 				if (sense_length) {
1348 					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__,
1349 					    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,
1350 					    cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
1351 				} else {
1352 					isp_prt(isp, ISP_LOGDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__,
1353 					    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid);
1354 				}
1355 				atp->state = ATPD_STATE_LAST_CTIO;
1356 			}
1357 
1358 			/*
1359 			 * Mode 0 data transfers, *possibly* with status.
1360 			 */
1361 			if (xfrlen != 0) {
1362 				cto->ct_flags |= CT7_FLAG_MODE0;
1363 				if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1364 					cto->ct_flags |= CT7_DATA_IN;
1365 				} else {
1366 					cto->ct_flags |= CT7_DATA_OUT;
1367 				}
1368 
1369 				cto->rsp.m0.reloff = atp->bytes_xfered + atp->bytes_in_transit;
1370 				cto->rsp.m0.ct_xfrlen = xfrlen;
1371 
1372 #ifdef	DEBUG
1373 				if (ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame && xfrlen > ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame) {
1374 					isp_prt(isp, ISP_LOGWARN, "%s: truncating data frame with xfrlen %d to %d", __func__, xfrlen, xfrlen - (xfrlen >> 2));
1375 					ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame = 0;
1376 					cto->rsp.m0.ct_xfrlen -= xfrlen >> 2;
1377 				}
1378 #endif
1379 				if (sendstatus) {
1380 					resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
1381 					if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /* && fctape == 0 */) {
1382 						cto->ct_flags |= CT7_SENDSTATUS;
1383 						atp->state = ATPD_STATE_LAST_CTIO;
1384 						if (fctape) {
1385 							cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
1386 						}
1387 					} else {
1388 						atp->sendst = 1;	/* send status later */
1389 						cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
1390 						atp->state = ATPD_STATE_CTIO;
1391 					}
1392 				} else {
1393 					atp->state = ATPD_STATE_CTIO;
1394 				}
1395 				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__,
1396 				    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, xfrlen, atp->bytes_xfered);
1397 			}
1398 		} else {
1399 			ct2_entry_t *cto = (ct2_entry_t *) local;
1400 
1401 			if (isp->isp_osinfo.sixtyfourbit)
1402 				cto->ct_header.rqs_entry_type = RQSTYPE_CTIO3;
1403 			else
1404 				cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
1405 			cto->ct_header.rqs_entry_count = 1;
1406 			cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
1407 			ATPD_SET_SEQNO(cto, atp);
1408 			if (ISP_CAP_2KLOGIN(isp)) {
1409 				((ct2e_entry_t *)cto)->ct_iid = atp->nphdl;
1410 			} else {
1411 				cto->ct_iid = atp->nphdl;
1412 				if (ISP_CAP_SCCFW(isp) == 0) {
1413 					cto->ct_lun = ccb->ccb_h.target_lun;
1414 				}
1415 			}
1416 			cto->ct_timeout = (XS_TIME(ccb) + 999) / 1000;
1417 			cto->ct_rxid = cso->tag_id;
1418 
1419 			/*
1420 			 * Mode 1, status, no data. Only possible when we are sending status, have
1421 			 * no data to transfer, and the sense length can fit in the ct7_entry.
1422 			 *
1423 			 * Mode 2, status, no data. We have to use this in the case the response
1424 			 * length won't fit into a ct2_entry_t.
1425 			 *
1426 			 * We'll fill out this structure with information as if this were a
1427 			 * Mode 1. The hardware layer will create the Mode 2 FCP RSP IU as
1428 			 * needed based upon this.
1429 			 */
1430 			if (sendstatus && xfrlen == 0) {
1431 				cto->ct_flags |= CT2_SENDSTATUS | CT2_NO_DATA;
1432 				resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
1433 				if (sense_length <= MAXRESPLEN) {
1434 					if (resid < 0) {
1435 						cto->ct_resid = -resid;
1436 					} else if (resid > 0) {
1437 						cto->ct_resid = resid;
1438 					}
1439 					cto->ct_flags |= CT2_FLAG_MODE1;
1440 					cto->rsp.m1.ct_scsi_status = cso->scsi_status;
1441 					if (resid < 0) {
1442 						cto->rsp.m1.ct_scsi_status |= CT2_DATA_OVER;
1443 					} else if (resid > 0) {
1444 						cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
1445 					}
1446 					if (fctape) {
1447 						cto->ct_flags |= CT2_CONFIRM;
1448 					}
1449 					if (sense_length) {
1450 						cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
1451 						cto->rsp.m1.ct_resplen = cto->rsp.m1.ct_senselen = sense_length;
1452 						memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
1453 					}
1454 				} else {
1455 					bus_addr_t addr;
1456 					char buf[XCMD_SIZE];
1457 					fcp_rsp_iu_t *rp;
1458 
1459 					if (atp->ests == NULL) {
1460 						atp->ests = isp_get_ecmd(isp);
1461 						if (atp->ests == NULL) {
1462 							TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1463 							break;
1464 						}
1465 					}
1466 					memset(buf, 0, sizeof (buf));
1467 					rp = (fcp_rsp_iu_t *)buf;
1468 					if (fctape) {
1469 						cto->ct_flags |= CT2_CONFIRM;
1470 						rp->fcp_rsp_bits |= FCP_CONF_REQ;
1471 					}
1472 					cto->ct_flags |= CT2_FLAG_MODE2;
1473 	        			rp->fcp_rsp_scsi_status = cso->scsi_status;
1474 					if (resid < 0) {
1475 						rp->fcp_rsp_resid = -resid;
1476 						rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
1477 					} else if (resid > 0) {
1478 						rp->fcp_rsp_resid = resid;
1479 						rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
1480 					}
1481 					if (sense_length) {
1482 	        				rp->fcp_rsp_snslen = sense_length;
1483 						rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
1484 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1485 						memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
1486 					} else {
1487 						isp_put_fcp_rsp_iu(isp, rp, atp->ests);
1488 					}
1489 					if (isp->isp_dblev & ISP_LOGTDEBUG1) {
1490 						isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
1491 					}
1492 					addr = isp->isp_osinfo.ecmd_dma;
1493 					addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
1494 					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,
1495 					    (uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
1496 					cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
1497 					if (cto->ct_header.rqs_entry_type == RQSTYPE_CTIO3) {
1498 						cto->rsp.m2.u.ct_fcp_rsp_iudata_64.ds_base = DMA_LO32(addr);
1499 						cto->rsp.m2.u.ct_fcp_rsp_iudata_64.ds_basehi = DMA_HI32(addr);
1500 						cto->rsp.m2.u.ct_fcp_rsp_iudata_64.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1501 					} else {
1502 						cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_base = DMA_LO32(addr);
1503 						cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
1504 					}
1505 				}
1506 				if (sense_length) {
1507 					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__,
1508 					    cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid,
1509 					    cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
1510 				} else {
1511 					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,
1512 					    ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid);
1513 				}
1514 				atp->state = ATPD_STATE_LAST_CTIO;
1515 			}
1516 
1517 			if (xfrlen != 0) {
1518 				cto->ct_flags |= CT2_FLAG_MODE0;
1519 				if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1520 					cto->ct_flags |= CT2_DATA_IN;
1521 				} else {
1522 					cto->ct_flags |= CT2_DATA_OUT;
1523 				}
1524 
1525 				cto->ct_reloff = atp->bytes_xfered + atp->bytes_in_transit;
1526 				cto->rsp.m0.ct_xfrlen = xfrlen;
1527 
1528 				if (sendstatus) {
1529 					resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
1530 					if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /*&& fctape == 0*/) {
1531 						cto->ct_flags |= CT2_SENDSTATUS;
1532 						atp->state = ATPD_STATE_LAST_CTIO;
1533 						if (fctape) {
1534 							cto->ct_flags |= CT2_CONFIRM;
1535 						}
1536 					} else {
1537 						atp->sendst = 1;	/* send status later */
1538 						cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
1539 						atp->state = ATPD_STATE_CTIO;
1540 					}
1541 				} else {
1542 					atp->state = ATPD_STATE_CTIO;
1543 				}
1544 			}
1545 			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,
1546 			    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);
1547 		}
1548 
1549 		if (isp_get_pcmd(isp, ccb)) {
1550 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "out of PCMDs\n");
1551 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1552 			break;
1553 		}
1554 		handle = isp_allocate_handle(isp, ccb, ISP_HANDLE_TARGET);
1555 		if (handle == 0) {
1556 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "No XFLIST pointers for %s\n", __func__);
1557 			TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1558 			isp_free_pcmd(isp, ccb);
1559 			break;
1560 		}
1561 		atp->bytes_in_transit += xfrlen;
1562 		PISP_PCMD(ccb)->datalen = xfrlen;
1563 
1564 
1565 		/*
1566 		 * Call the dma setup routines for this entry (and any subsequent
1567 		 * CTIOs) if there's data to move, and then tell the f/w it's got
1568 		 * new things to play with. As with isp_start's usage of DMA setup,
1569 		 * any swizzling is done in the machine dependent layer. Because
1570 		 * of this, we put the request onto the queue area first in native
1571 		 * format.
1572 		 */
1573 
1574 		if (IS_24XX(isp)) {
1575 			ct7_entry_t *cto = (ct7_entry_t *) local;
1576 			cto->ct_syshandle = handle;
1577 		} else {
1578 			ct2_entry_t *cto = (ct2_entry_t *) local;
1579 			cto->ct_syshandle = handle;
1580 		}
1581 
1582 		dmaresult = ISP_DMASETUP(isp, cso, (ispreq_t *) local);
1583 		if (dmaresult != CMD_QUEUED) {
1584 			isp_destroy_handle(isp, handle);
1585 			isp_free_pcmd(isp, ccb);
1586 			if (dmaresult == CMD_EAGAIN) {
1587 				TAILQ_INSERT_HEAD(waitq, &ccb->ccb_h, periph_links.tqe);
1588 				break;
1589 			}
1590 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1591 			xpt_done(ccb);
1592 			continue;
1593 		}
1594 		isp->isp_nactive++;
1595 		ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
1596 		if (xfrlen) {
1597 			ccb->ccb_h.spriv_field0 = atp->bytes_xfered;
1598 		} else {
1599 			ccb->ccb_h.spriv_field0 = ~0;
1600 		}
1601 		atp->ctcnt++;
1602 		atp->seqno++;
1603 	}
1604 }
1605 
1606 static void
1607 isp_refire_putback_atio(void *arg)
1608 {
1609 	union ccb *ccb = arg;
1610 
1611 	ISP_ASSERT_LOCKED((ispsoftc_t *)XS_ISP(ccb));
1612 	isp_target_putback_atio(ccb);
1613 }
1614 
1615 static void
1616 isp_refire_notify_ack(void *arg)
1617 {
1618 	isp_tna_t *tp  = arg;
1619 	ispsoftc_t *isp = tp->isp;
1620 
1621 	ISP_ASSERT_LOCKED(isp);
1622 	if (isp_notify_ack(isp, tp->not)) {
1623 		callout_schedule(&tp->timer, 5);
1624 	} else {
1625 		free(tp, M_DEVBUF);
1626 	}
1627 }
1628 
1629 
1630 static void
1631 isp_target_putback_atio(union ccb *ccb)
1632 {
1633 	ispsoftc_t *isp = XS_ISP(ccb);
1634 	struct ccb_scsiio *cso = &ccb->csio;
1635 	at2_entry_t local, *at = &local;
1636 
1637 	ISP_MEMZERO(at, sizeof (at2_entry_t));
1638 	at->at_header.rqs_entry_type = RQSTYPE_ATIO2;
1639 	at->at_header.rqs_entry_count = 1;
1640 	if (ISP_CAP_SCCFW(isp)) {
1641 		at->at_scclun = (uint16_t) ccb->ccb_h.target_lun;
1642 	} else {
1643 		at->at_lun = (uint8_t) ccb->ccb_h.target_lun;
1644 	}
1645 	at->at_status = CT_OK;
1646 	at->at_rxid = cso->tag_id;
1647 	at->at_iid = cso->ccb_h.target_id;
1648 	if (isp_target_put_entry(isp, at)) {
1649 		callout_reset(&PISP_PCMD(ccb)->wdog, 10,
1650 		    isp_refire_putback_atio, ccb);
1651 	} else
1652 		isp_complete_ctio(ccb);
1653 }
1654 
1655 static void
1656 isp_complete_ctio(union ccb *ccb)
1657 {
1658 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1659 		ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1660 		xpt_done(ccb);
1661 	}
1662 }
1663 
1664 static void
1665 isp_handle_platform_atio2(ispsoftc_t *isp, at2_entry_t *aep)
1666 {
1667 	fcparam *fcp;
1668 	lun_id_t lun;
1669 	fcportdb_t *lp;
1670 	tstate_t *tptr;
1671 	struct ccb_accept_tio *atiop;
1672 	uint16_t nphdl;
1673 	atio_private_data_t *atp;
1674 	inot_private_data_t *ntp;
1675 
1676 	/*
1677 	 * The firmware status (except for the QLTM_SVALID bit)
1678 	 * indicates why this ATIO was sent to us.
1679 	 *
1680 	 * If QLTM_SVALID is set, the firmware has recommended Sense Data.
1681 	 */
1682 	if ((aep->at_status & ~QLTM_SVALID) != AT_CDB) {
1683 		isp_prt(isp, ISP_LOGWARN, "bogus atio (0x%x) leaked to platform", aep->at_status);
1684 		isp_endcmd(isp, aep, NIL_HANDLE, 0, SCSI_STATUS_BUSY, 0);
1685 		return;
1686 	}
1687 
1688 	fcp = FCPARAM(isp, 0);
1689 	if (ISP_CAP_SCCFW(isp)) {
1690 		lun = aep->at_scclun;
1691 	} else {
1692 		lun = aep->at_lun;
1693 	}
1694 	if (ISP_CAP_2KLOGIN(isp)) {
1695 		nphdl = ((at2e_entry_t *)aep)->at_iid;
1696 	} else {
1697 		nphdl = aep->at_iid;
1698 	}
1699 	tptr = get_lun_statep(isp, 0, lun);
1700 	if (tptr == NULL) {
1701 		tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
1702 		if (tptr == NULL) {
1703 			isp_prt(isp, ISP_LOGWARN, "%s: [0x%x] no state pointer for lun %jx or wildcard", __func__, aep->at_rxid, (uintmax_t)lun);
1704 			if (lun == 0) {
1705 				isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
1706 			} else {
1707 				isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
1708 			}
1709 			return;
1710 		}
1711 	}
1712 
1713 	/*
1714 	 * Start any commands pending resources first.
1715 	 */
1716 	if (isp_atio_restart(isp, 0, tptr))
1717 		goto noresrc;
1718 
1719 	atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
1720 	if (atiop == NULL) {
1721 		goto noresrc;
1722 	}
1723 
1724 	atp = isp_get_atpd(isp, 0, aep->at_rxid);
1725 	if (atp == NULL) {
1726 		goto noresrc;
1727 	}
1728 
1729 	atp->state = ATPD_STATE_ATIO;
1730 	SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1731 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
1732 	atiop->ccb_h.target_id = fcp->isp_loopid;
1733 	atiop->ccb_h.target_lun = lun;
1734 
1735 	/*
1736 	 * We don't get 'suggested' sense data as we do with SCSI cards.
1737 	 */
1738 	atiop->sense_len = 0;
1739 
1740 	/*
1741 	 * If we're not in the port database, add ourselves.
1742 	 */
1743 	if (IS_2100(isp))
1744 		atiop->init_id = nphdl;
1745 	else {
1746 		if (isp_find_pdb_by_handle(isp, 0, nphdl, &lp)) {
1747 			atiop->init_id = FC_PORTDB_TGT(isp, 0, lp);
1748 		} else {
1749 			isp_prt(isp, ISP_LOGTINFO, "%s: port %x isn't in PDB",
1750 			    __func__, nphdl);
1751 			isp_dump_portdb(isp, 0);
1752 			isp_endcmd(isp, aep, NIL_HANDLE, 0, ECMD_TERMINATE, 0);
1753 			return;
1754 		}
1755 	}
1756 	atiop->cdb_len = ATIO2_CDBLEN;
1757 	ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cdb, ATIO2_CDBLEN);
1758 	atiop->ccb_h.status = CAM_CDB_RECVD;
1759 	atiop->tag_id = atp->tag;
1760 	switch (aep->at_taskflags & ATIO2_TC_ATTR_MASK) {
1761 	case ATIO2_TC_ATTR_SIMPLEQ:
1762 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1763 		atiop->tag_action = MSG_SIMPLE_Q_TAG;
1764 		break;
1765 	case ATIO2_TC_ATTR_HEADOFQ:
1766 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1767 		atiop->tag_action = MSG_HEAD_OF_Q_TAG;
1768 		break;
1769 	case ATIO2_TC_ATTR_ORDERED:
1770 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1771 		atiop->tag_action = MSG_ORDERED_Q_TAG;
1772 		break;
1773 	case ATIO2_TC_ATTR_ACAQ:		/* ?? */
1774 	case ATIO2_TC_ATTR_UNTAGGED:
1775 	default:
1776 		atiop->tag_action = 0;
1777 		break;
1778 	}
1779 
1780 	atp->orig_datalen = aep->at_datalen;
1781 	atp->bytes_xfered = 0;
1782 	atp->lun = lun;
1783 	atp->nphdl = nphdl;
1784 	atp->sid = PORT_ANY;
1785 	atp->oxid = aep->at_oxid;
1786 	atp->cdb0 = aep->at_cdb[0];
1787 	atp->tattr = aep->at_taskflags & ATIO2_TC_ATTR_MASK;
1788 	atp->state = ATPD_STATE_CAM;
1789 	xpt_done((union ccb *)atiop);
1790 	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);
1791 	return;
1792 noresrc:
1793 	ntp = isp_get_ntpd(isp, 0);
1794 	if (ntp == NULL) {
1795 		isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
1796 		return;
1797 	}
1798 	memcpy(ntp->data, aep, QENTRY_LEN);
1799 	STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
1800 }
1801 
1802 static void
1803 isp_handle_platform_atio7(ispsoftc_t *isp, at7_entry_t *aep)
1804 {
1805 	int cdbxlen;
1806 	lun_id_t lun;
1807 	uint16_t chan, nphdl = NIL_HANDLE;
1808 	uint32_t did, sid;
1809 	fcportdb_t *lp;
1810 	tstate_t *tptr;
1811 	struct ccb_accept_tio *atiop;
1812 	atio_private_data_t *atp = NULL;
1813 	atio_private_data_t *oatp;
1814 	inot_private_data_t *ntp;
1815 
1816 	did = (aep->at_hdr.d_id[0] << 16) | (aep->at_hdr.d_id[1] << 8) | aep->at_hdr.d_id[2];
1817 	sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
1818 	lun = CAM_EXTLUN_BYTE_SWIZZLE(be64dec(aep->at_cmnd.fcp_cmnd_lun));
1819 
1820 	if (ISP_CAP_MULTI_ID(isp) && isp->isp_nchan > 1) {
1821 		/* Channel has to be derived from D_ID */
1822 		isp_find_chan_by_did(isp, did, &chan);
1823 		if (chan == ISP_NOCHAN) {
1824 			isp_prt(isp, ISP_LOGWARN,
1825 			    "%s: [RX_ID 0x%x] D_ID %x not found on any channel",
1826 			    __func__, aep->at_rxid, did);
1827 			isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN,
1828 			    ECMD_TERMINATE, 0);
1829 			return;
1830 		}
1831 	} else {
1832 		chan = 0;
1833 	}
1834 
1835 	/*
1836 	 * Find the PDB entry for this initiator
1837 	 */
1838 	if (isp_find_pdb_by_portid(isp, chan, sid, &lp) == 0) {
1839 		/*
1840 		 * If we're not in the port database terminate the exchange.
1841 		 */
1842 		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",
1843 		    __func__, aep->at_rxid, did, chan, sid);
1844 		isp_dump_portdb(isp, chan);
1845 		isp_endcmd(isp, aep, NIL_HANDLE, chan, ECMD_TERMINATE, 0);
1846 		return;
1847 	}
1848 	nphdl = lp->handle;
1849 
1850 	/*
1851 	 * Get the tstate pointer
1852 	 */
1853 	tptr = get_lun_statep(isp, chan, lun);
1854 	if (tptr == NULL) {
1855 		tptr = get_lun_statep(isp, chan, CAM_LUN_WILDCARD);
1856 		if (tptr == NULL) {
1857 			isp_prt(isp, ISP_LOGWARN,
1858 			    "%s: [0x%x] no state pointer for lun %jx or wildcard",
1859 			    __func__, aep->at_rxid, (uintmax_t)lun);
1860 			if (lun == 0) {
1861 				isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
1862 			} else {
1863 				isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
1864 			}
1865 			return;
1866 		}
1867 	}
1868 
1869 	/*
1870 	 * Start any commands pending resources first.
1871 	 */
1872 	if (isp_atio_restart(isp, chan, tptr))
1873 		goto noresrc;
1874 
1875 	/*
1876 	 * If the f/w is out of resources, just send a BUSY status back.
1877 	 */
1878 	if (aep->at_rxid == AT7_NORESRC_RXID) {
1879 		isp_endcmd(isp, aep, nphdl, chan, SCSI_BUSY, 0);
1880 		return;
1881 	}
1882 
1883 	/*
1884 	 * If we're out of resources, just send a BUSY status back.
1885 	 */
1886 	atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
1887 	if (atiop == NULL) {
1888 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atios", aep->at_rxid);
1889 		goto noresrc;
1890 	}
1891 
1892 	oatp = isp_find_atpd(isp, chan, aep->at_rxid);
1893 	if (oatp) {
1894 		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",
1895 		    aep->at_rxid, nphdl, sid, aep->at_hdr.ox_id, oatp->state);
1896 		/*
1897 		 * It's not a "no resource" condition- but we can treat it like one
1898 		 */
1899 		goto noresrc;
1900 	}
1901 	atp = isp_get_atpd(isp, chan, aep->at_rxid);
1902 	if (atp == NULL) {
1903 		isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atps", aep->at_rxid);
1904 		goto noresrc;
1905 	}
1906 	atp->word3 = lp->prli_word3;
1907 	atp->state = ATPD_STATE_ATIO;
1908 	SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
1909 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO\n");
1910 	atiop->init_id = FC_PORTDB_TGT(isp, chan, lp);
1911 	atiop->ccb_h.target_id = FCPARAM(isp, chan)->isp_loopid;
1912 	atiop->ccb_h.target_lun = lun;
1913 	atiop->sense_len = 0;
1914 	cdbxlen = aep->at_cmnd.fcp_cmnd_alen_datadir >> FCP_CMND_ADDTL_CDBLEN_SHIFT;
1915 	if (cdbxlen) {
1916 		isp_prt(isp, ISP_LOGWARN, "additional CDBLEN ignored");
1917 	}
1918 	cdbxlen = sizeof (aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb);
1919 	ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb, cdbxlen);
1920 	atiop->cdb_len = cdbxlen;
1921 	atiop->ccb_h.status = CAM_CDB_RECVD;
1922 	atiop->tag_id = atp->tag;
1923 	switch (aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK) {
1924 	case FCP_CMND_TASK_ATTR_SIMPLE:
1925 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1926 		atiop->tag_action = MSG_SIMPLE_Q_TAG;
1927 		break;
1928 	case FCP_CMND_TASK_ATTR_HEAD:
1929 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1930 		atiop->tag_action = MSG_HEAD_OF_Q_TAG;
1931 		break;
1932 	case FCP_CMND_TASK_ATTR_ORDERED:
1933 		atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
1934 		atiop->tag_action = MSG_ORDERED_Q_TAG;
1935 		break;
1936 	default:
1937 		/* FALLTHROUGH */
1938 	case FCP_CMND_TASK_ATTR_ACA:
1939 	case FCP_CMND_TASK_ATTR_UNTAGGED:
1940 		atiop->tag_action = 0;
1941 		break;
1942 	}
1943 	atp->orig_datalen = aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl;
1944 	atp->bytes_xfered = 0;
1945 	atp->lun = lun;
1946 	atp->nphdl = nphdl;
1947 	atp->sid = sid;
1948 	atp->did = did;
1949 	atp->oxid = aep->at_hdr.ox_id;
1950 	atp->rxid = aep->at_hdr.rx_id;
1951 	atp->cdb0 = atiop->cdb_io.cdb_bytes[0];
1952 	atp->tattr = aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK;
1953 	atp->state = ATPD_STATE_CAM;
1954 	isp_prt(isp, ISP_LOGTDEBUG0, "ATIO7[0x%x] CDB=0x%x lun %jx datalen %u",
1955 	    aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
1956 	xpt_done((union ccb *)atiop);
1957 	return;
1958 noresrc:
1959 	if (atp)
1960 		isp_put_atpd(isp, chan, atp);
1961 	ntp = isp_get_ntpd(isp, chan);
1962 	if (ntp == NULL) {
1963 		isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
1964 		return;
1965 	}
1966 	memcpy(ntp->data, aep, QENTRY_LEN);
1967 	STAILQ_INSERT_TAIL(&tptr->restart_queue, ntp, next);
1968 }
1969 
1970 
1971 /*
1972  * Handle starting an SRR (sequence retransmit request)
1973  * We get here when we've gotten the immediate notify
1974  * and the return of all outstanding CTIOs for this
1975  * transaction.
1976  */
1977 static void
1978 isp_handle_srr_start(ispsoftc_t *isp, atio_private_data_t *atp)
1979 {
1980 	in_fcentry_24xx_t *inot;
1981 	uint32_t srr_off, ccb_off, ccb_len, ccb_end;
1982 	union ccb *ccb;
1983 
1984 	inot = (in_fcentry_24xx_t *)atp->srr;
1985 	srr_off = inot->in_srr_reloff_lo | (inot->in_srr_reloff_hi << 16);
1986 	ccb = atp->srr_ccb;
1987 	atp->srr_ccb = NULL;
1988 	atp->nsrr++;
1989 	if (ccb == NULL) {
1990 		isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] null ccb", atp->tag);
1991 		goto fail;
1992 	}
1993 
1994 	ccb_off = ccb->ccb_h.spriv_field0;
1995 	ccb_len = ccb->csio.dxfer_len;
1996         ccb_end = (ccb_off == ~0)? ~0 : ccb_off + ccb_len;
1997 
1998 	switch (inot->in_srr_iu) {
1999 	case R_CTL_INFO_SOLICITED_DATA:
2000 		/*
2001 		 * We have to restart a FCP_DATA data out transaction
2002 		 */
2003 		atp->sendst = 0;
2004 		atp->bytes_xfered = srr_off;
2005 		if (ccb_len == 0) {
2006 			isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x but current CCB doesn't transfer data", atp->tag, srr_off);
2007 			goto mdp;
2008 		}
2009  		if (srr_off < ccb_off || ccb_off > srr_off + ccb_len) {
2010 			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);
2011 			goto mdp;
2012 		}
2013 		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);
2014 		break;
2015 	case R_CTL_INFO_COMMAND_STATUS:
2016 		isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] Got an FCP RSP SRR- resending status", atp->tag);
2017 		atp->sendst = 1;
2018 		/*
2019 		 * We have to restart a FCP_RSP IU transaction
2020 		 */
2021 		break;
2022 	case R_CTL_INFO_DATA_DESCRIPTOR:
2023 		/*
2024 		 * We have to restart an FCP DATA in transaction
2025 		 */
2026 		isp_prt(isp, ISP_LOGWARN, "Got an FCP DATA IN SRR- dropping");
2027 		goto fail;
2028 
2029 	default:
2030 		isp_prt(isp, ISP_LOGWARN, "Got an unknown information (%x) SRR- dropping", inot->in_srr_iu);
2031 		goto fail;
2032 	}
2033 
2034 	/*
2035 	 * We can't do anything until this is acked, so we might as well start it now.
2036 	 * We aren't going to do the usual asynchronous ack issue because we need
2037 	 * to make sure this gets on the wire first.
2038 	 */
2039 	if (isp_notify_ack(isp, inot)) {
2040 		isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
2041 		goto fail;
2042 	}
2043 	isp_target_start_ctio(isp, ccb, FROM_SRR);
2044 	return;
2045 fail:
2046 	inot->in_reserved = 1;
2047 	isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
2048 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2049 	ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
2050 	isp_complete_ctio(ccb);
2051 	return;
2052 mdp:
2053 	if (isp_notify_ack(isp, inot)) {
2054 		isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
2055 		goto fail;
2056 	}
2057 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2058 	ccb->ccb_h.status = CAM_MESSAGE_RECV;
2059 	/*
2060 	 * This is not a strict interpretation of MDP, but it's close
2061 	 */
2062 	ccb->csio.msg_ptr = &ccb->csio.sense_data.sense_buf[SSD_FULL_SIZE - 16];
2063 	ccb->csio.msg_len = 7;
2064 	ccb->csio.msg_ptr[0] = MSG_EXTENDED;
2065 	ccb->csio.msg_ptr[1] = 5;
2066 	ccb->csio.msg_ptr[2] = 0;	/* modify data pointer */
2067 	ccb->csio.msg_ptr[3] = srr_off >> 24;
2068 	ccb->csio.msg_ptr[4] = srr_off >> 16;
2069 	ccb->csio.msg_ptr[5] = srr_off >> 8;
2070 	ccb->csio.msg_ptr[6] = srr_off;
2071 	isp_complete_ctio(ccb);
2072 }
2073 
2074 
2075 static void
2076 isp_handle_platform_srr(ispsoftc_t *isp, isp_notify_t *notify)
2077 {
2078 	in_fcentry_24xx_t *inot = notify->nt_lreserved;
2079 	atio_private_data_t *atp;
2080 	uint32_t tag = notify->nt_tagval & 0xffffffff;
2081 
2082 	atp = isp_find_atpd(isp, notify->nt_channel, tag);
2083 	if (atp == NULL) {
2084 		isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x in SRR Notify",
2085 		    __func__, tag);
2086 		isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
2087 		return;
2088 	}
2089 	atp->srr_notify_rcvd = 1;
2090 	memcpy(atp->srr, inot, sizeof (atp->srr));
2091 	isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] flags 0x%x srr_iu %x reloff 0x%x",
2092 	    inot->in_rxid, inot->in_flags, inot->in_srr_iu,
2093 	    ((uint32_t)inot->in_srr_reloff_hi << 16) | inot->in_srr_reloff_lo);
2094 	if (atp->srr_ccb)
2095 		isp_handle_srr_start(isp, atp);
2096 }
2097 
2098 static void
2099 isp_handle_platform_ctio(ispsoftc_t *isp, void *arg)
2100 {
2101 	union ccb *ccb;
2102 	int sentstatus = 0, ok = 0, notify_cam = 0, failure = 0;
2103 	atio_private_data_t *atp = NULL;
2104 	int bus;
2105 	uint32_t handle, data_requested, resid;
2106 
2107 	handle = ((ct2_entry_t *)arg)->ct_syshandle;
2108 	ccb = isp_find_xs(isp, handle);
2109 	if (ccb == NULL) {
2110 		isp_print_bytes(isp, "null ccb in isp_handle_platform_ctio", QENTRY_LEN, arg);
2111 		return;
2112 	}
2113 	isp_destroy_handle(isp, handle);
2114 	resid = data_requested = PISP_PCMD(ccb)->datalen;
2115 	isp_free_pcmd(isp, ccb);
2116 	if (isp->isp_nactive) {
2117 		isp->isp_nactive--;
2118 	}
2119 
2120 	bus = XS_CHANNEL(ccb);
2121 	if (IS_24XX(isp)) {
2122 		atp = isp_find_atpd(isp, bus, ((ct7_entry_t *)arg)->ct_rxid);
2123 	} else {
2124 		atp = isp_find_atpd(isp, bus, ((ct2_entry_t *)arg)->ct_rxid);
2125 	}
2126 	if (atp == NULL) {
2127 		/*
2128 		 * XXX: isp_clear_commands() generates fake CTIO with zero
2129 		 * ct_rxid value, filling only ct_syshandle.  Workaround
2130 		 * that using tag_id from the CCB, pointed by ct_syshandle.
2131 		 */
2132 		atp = isp_find_atpd(isp, bus, ccb->csio.tag_id);
2133 	}
2134 	if (atp == NULL) {
2135 		isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x after I/O", __func__, ccb->csio.tag_id);
2136 		return;
2137 	}
2138 	KASSERT((atp->ctcnt > 0), ("ctio count not greater than zero"));
2139 	atp->bytes_in_transit -= data_requested;
2140 	atp->ctcnt -= 1;
2141 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
2142 
2143 	if (IS_24XX(isp)) {
2144 		ct7_entry_t *ct = arg;
2145 
2146 		if (ct->ct_nphdl == CT7_SRR) {
2147 			atp->srr_ccb = ccb;
2148 			if (atp->srr_notify_rcvd)
2149 				isp_handle_srr_start(isp, atp);
2150 			return;
2151 		}
2152 		if (ct->ct_nphdl == CT_HBA_RESET) {
2153 			sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2154 			    (atp->sendst == 0);
2155 			failure = CAM_UNREC_HBA_ERROR;
2156 		} else {
2157 			sentstatus = ct->ct_flags & CT7_SENDSTATUS;
2158 			ok = (ct->ct_nphdl == CT7_OK);
2159 			notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
2160 			if ((ct->ct_flags & CT7_DATAMASK) != CT7_NO_DATA)
2161 				resid = ct->ct_resid;
2162 		}
2163 		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),
2164 		   notify_cam, ct->ct_nphdl, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
2165 	} else {
2166 		ct2_entry_t *ct = arg;
2167 		if (ct->ct_status == CT_SRR) {
2168 			atp->srr_ccb = ccb;
2169 			if (atp->srr_notify_rcvd)
2170 				isp_handle_srr_start(isp, atp);
2171 			isp_target_putback_atio(ccb);
2172 			return;
2173 		}
2174 		if (ct->ct_status == CT_HBA_RESET) {
2175 			sentstatus = (ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2176 			    (atp->sendst == 0);
2177 			failure = CAM_UNREC_HBA_ERROR;
2178 		} else {
2179 			sentstatus = ct->ct_flags & CT2_SENDSTATUS;
2180 			ok = (ct->ct_status & ~QLTM_SVALID) == CT_OK;
2181 			notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
2182 			if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA)
2183 				resid = ct->ct_resid;
2184 		}
2185 		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),
2186 		    notify_cam, ct->ct_status, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
2187 	}
2188 	if (ok) {
2189 		if (data_requested > 0) {
2190 			atp->bytes_xfered += data_requested - resid;
2191 			ccb->csio.resid = ccb->csio.dxfer_len -
2192 			    (data_requested - resid);
2193 		}
2194 		if (sentstatus && (ccb->ccb_h.flags & CAM_SEND_SENSE))
2195 			ccb->ccb_h.status |= CAM_SENT_SENSE;
2196 		ccb->ccb_h.status |= CAM_REQ_CMP;
2197 	} else {
2198 		notify_cam = 1;
2199 		if (failure == CAM_UNREC_HBA_ERROR)
2200 			ccb->ccb_h.status |= CAM_UNREC_HBA_ERROR;
2201 		else
2202 			ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
2203 	}
2204 	atp->state = ATPD_STATE_PDON;
2205 
2206 	/*
2207 	 * We never *not* notify CAM when there has been any error (ok == 0),
2208 	 * so we never need to do an ATIO putback if we're not notifying CAM.
2209 	 */
2210 	isp_prt(isp, ISP_LOGTDEBUG0, "%s CTIO[0x%x] done (ok=%d nc=%d nowsendstatus=%d ccb ss=%d)",
2211 	    (sentstatus)? "  FINAL " : "MIDTERM ", atp->tag, ok, notify_cam, atp->sendst, (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0);
2212 	if (notify_cam == 0) {
2213 		if (atp->sendst) {
2214 			isp_target_start_ctio(isp, ccb, FROM_CTIO_DONE);
2215 		}
2216 		return;
2217 	}
2218 
2219 	/*
2220 	 * We are done with this ATIO if we successfully sent status.
2221 	 * In all other cases expect either another CTIO or XPT_ABORT.
2222 	 */
2223 	if (ok && sentstatus)
2224 		isp_put_atpd(isp, bus, atp);
2225 
2226 	/*
2227 	 * We're telling CAM we're done with this CTIO transaction.
2228 	 *
2229 	 * 24XX cards never need an ATIO put back.
2230 	 *
2231 	 * Other cards need one put back only on error.
2232 	 * In the latter case, a timeout will re-fire
2233 	 * and try again in case we didn't have
2234 	 * queue resources to do so at first. In any case,
2235 	 * once the putback is done we do the completion
2236 	 * call.
2237 	 */
2238 	if (ok || IS_24XX(isp)) {
2239 		isp_complete_ctio(ccb);
2240 	} else {
2241 		isp_target_putback_atio(ccb);
2242 	}
2243 }
2244 
2245 static int
2246 isp_handle_platform_target_notify_ack(ispsoftc_t *isp, isp_notify_t *mp, uint32_t rsp)
2247 {
2248 
2249 	if (isp->isp_state != ISP_RUNSTATE) {
2250 		isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) acked- h/w not ready (dropping)", mp->nt_ncode, mp->nt_lreserved != NULL);
2251 		return (0);
2252 	}
2253 
2254 	/*
2255 	 * This case is for a Task Management Function, which shows up as an ATIO7 entry.
2256 	 */
2257 	if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ATIO) {
2258 		ct7_entry_t local, *cto = &local;
2259 		at7_entry_t *aep = (at7_entry_t *)mp->nt_lreserved;
2260 		fcportdb_t *lp;
2261 		uint32_t sid;
2262 		uint16_t nphdl;
2263 
2264 		sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
2265 		if (isp_find_pdb_by_portid(isp, mp->nt_channel, sid, &lp)) {
2266 			nphdl = lp->handle;
2267 		} else {
2268 			nphdl = NIL_HANDLE;
2269 		}
2270 		ISP_MEMZERO(&local, sizeof (local));
2271 		cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2272 		cto->ct_header.rqs_entry_count = 1;
2273 		cto->ct_nphdl = nphdl;
2274 		cto->ct_rxid = aep->at_rxid;
2275 		cto->ct_vpidx = mp->nt_channel;
2276 		cto->ct_iid_lo = sid;
2277 		cto->ct_iid_hi = sid >> 16;
2278 		cto->ct_oxid = aep->at_hdr.ox_id;
2279 		cto->ct_flags = CT7_SENDSTATUS|CT7_NOACK|CT7_NO_DATA|CT7_FLAG_MODE1;
2280 		cto->ct_flags |= (aep->at_ta_len >> 12) << CT7_TASK_ATTR_SHIFT;
2281 		if (rsp != 0) {
2282 			cto->ct_scsi_status |= (FCP_RSPLEN_VALID << 8);
2283 			cto->rsp.m1.ct_resplen = 4;
2284 			ISP_MEMZERO(cto->rsp.m1.ct_resp, sizeof (cto->rsp.m1.ct_resp));
2285 			cto->rsp.m1.ct_resp[0] = rsp & 0xff;
2286 			cto->rsp.m1.ct_resp[1] = (rsp >> 8) & 0xff;
2287 			cto->rsp.m1.ct_resp[2] = (rsp >> 16) & 0xff;
2288 			cto->rsp.m1.ct_resp[3] = (rsp >> 24) & 0xff;
2289 		}
2290 		return (isp_target_put_entry(isp, &local));
2291 	}
2292 
2293 	/*
2294 	 * This case is for a responding to an ABTS frame
2295 	 */
2296 	if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
2297 
2298 		/*
2299 		 * Overload nt_need_ack here to mark whether we've terminated the associated command.
2300 		 */
2301 		if (mp->nt_need_ack) {
2302 			uint8_t storage[QENTRY_LEN];
2303 			ct7_entry_t *cto = (ct7_entry_t *) storage;
2304 			abts_t *abts = (abts_t *)mp->nt_lreserved;
2305 
2306 			ISP_MEMZERO(cto, sizeof (ct7_entry_t));
2307 			isp_prt(isp, ISP_LOGTDEBUG0, "%s: [%x] terminating after ABTS received", __func__, abts->abts_rxid_task);
2308 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2309 			cto->ct_header.rqs_entry_count = 1;
2310 			cto->ct_nphdl = mp->nt_nphdl;
2311 			cto->ct_rxid = abts->abts_rxid_task;
2312 			cto->ct_iid_lo = mp->nt_sid;
2313 			cto->ct_iid_hi = mp->nt_sid >> 16;
2314 			cto->ct_oxid = abts->abts_ox_id;
2315 			cto->ct_vpidx = mp->nt_channel;
2316 			cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
2317 			if (isp_target_put_entry(isp, cto)) {
2318 				return (ENOMEM);
2319 			}
2320 			mp->nt_need_ack = 0;
2321 		}
2322 		if (isp_acknak_abts(isp, mp->nt_lreserved, 0) == ENOMEM) {
2323 			return (ENOMEM);
2324 		} else {
2325 			return (0);
2326 		}
2327 	}
2328 
2329 	/*
2330 	 * Handle logout cases here
2331 	 */
2332 	if (mp->nt_ncode == NT_GLOBAL_LOGOUT) {
2333 		isp_del_all_wwn_entries(isp, mp->nt_channel);
2334 	}
2335 
2336 	if (mp->nt_ncode == NT_LOGOUT) {
2337 		if (!IS_2100(isp) && IS_FC(isp)) {
2338 			isp_del_wwn_entries(isp, mp);
2339 		}
2340 	}
2341 
2342 	/*
2343 	 * General purpose acknowledgement
2344 	 */
2345 	if (mp->nt_need_ack) {
2346 		isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) being acked", mp->nt_ncode, mp->nt_lreserved != NULL);
2347 		/*
2348 		 * Don't need to use the guaranteed send because the caller can retry
2349 		 */
2350 		return (isp_notify_ack(isp, mp->nt_lreserved));
2351 	}
2352 	return (0);
2353 }
2354 
2355 /*
2356  * Handle task management functions.
2357  *
2358  * We show up here with a notify structure filled out.
2359  *
2360  * The nt_lreserved tag points to the original queue entry
2361  */
2362 static void
2363 isp_handle_platform_target_tmf(ispsoftc_t *isp, isp_notify_t *notify)
2364 {
2365 	tstate_t *tptr;
2366 	fcportdb_t *lp;
2367 	struct ccb_immediate_notify *inot;
2368 	inot_private_data_t *ntp = NULL;
2369 	atio_private_data_t *atp;
2370 	lun_id_t lun;
2371 
2372 	isp_prt(isp, ISP_LOGTDEBUG0, "%s: code 0x%x sid  0x%x tagval 0x%016llx chan %d lun %jx", __func__, notify->nt_ncode,
2373 	    notify->nt_sid, (unsigned long long) notify->nt_tagval, notify->nt_channel, notify->nt_lun);
2374 	if (notify->nt_lun == LUN_ANY) {
2375 		if (notify->nt_tagval == TAG_ANY) {
2376 			lun = CAM_LUN_WILDCARD;
2377 		} else {
2378 			atp = isp_find_atpd(isp, notify->nt_channel,
2379 			    notify->nt_tagval & 0xffffffff);
2380 			lun = atp ? atp->lun : CAM_LUN_WILDCARD;
2381 		}
2382 	} else {
2383 		lun = notify->nt_lun;
2384 	}
2385 	tptr = get_lun_statep(isp, notify->nt_channel, lun);
2386 	if (tptr == NULL) {
2387 		tptr = get_lun_statep(isp, notify->nt_channel, CAM_LUN_WILDCARD);
2388 		if (tptr == NULL) {
2389 			isp_prt(isp, ISP_LOGWARN, "%s: no state pointer found for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
2390 			goto bad;
2391 		}
2392 	}
2393 	inot = (struct ccb_immediate_notify *) SLIST_FIRST(&tptr->inots);
2394 	if (inot == NULL) {
2395 		isp_prt(isp, ISP_LOGWARN, "%s: out of immediate notify structures for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
2396 		goto bad;
2397 	}
2398 
2399 	if (isp_find_pdb_by_portid(isp, notify->nt_channel, notify->nt_sid, &lp) == 0 &&
2400 	    isp_find_pdb_by_handle(isp, notify->nt_channel, notify->nt_nphdl, &lp) == 0) {
2401 		inot->initiator_id = CAM_TARGET_WILDCARD;
2402 	} else {
2403 		inot->initiator_id = FC_PORTDB_TGT(isp, notify->nt_channel, lp);
2404 	}
2405 	inot->seq_id = notify->nt_tagval;
2406 	inot->tag_id = notify->nt_tagval >> 32;
2407 
2408 	switch (notify->nt_ncode) {
2409 	case NT_ABORT_TASK:
2410 		isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, inot->tag_id);
2411 		inot->arg = MSG_ABORT_TASK;
2412 		break;
2413 	case NT_ABORT_TASK_SET:
2414 		isp_target_mark_aborted_early(isp, notify->nt_channel, tptr, TAG_ANY);
2415 		inot->arg = MSG_ABORT_TASK_SET;
2416 		break;
2417 	case NT_CLEAR_ACA:
2418 		inot->arg = MSG_CLEAR_ACA;
2419 		break;
2420 	case NT_CLEAR_TASK_SET:
2421 		inot->arg = MSG_CLEAR_TASK_SET;
2422 		break;
2423 	case NT_LUN_RESET:
2424 		inot->arg = MSG_LOGICAL_UNIT_RESET;
2425 		break;
2426 	case NT_TARGET_RESET:
2427 		inot->arg = MSG_TARGET_RESET;
2428 		break;
2429 	case NT_QUERY_TASK_SET:
2430 		inot->arg = MSG_QUERY_TASK_SET;
2431 		break;
2432 	case NT_QUERY_ASYNC_EVENT:
2433 		inot->arg = MSG_QUERY_ASYNC_EVENT;
2434 		break;
2435 	default:
2436 		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);
2437 		goto bad;
2438 	}
2439 
2440 	ntp = isp_get_ntpd(isp, notify->nt_channel);
2441 	if (ntp == NULL) {
2442 		isp_prt(isp, ISP_LOGWARN, "%s: out of inotify private structures", __func__);
2443 		goto bad;
2444 	}
2445 	ISP_MEMCPY(&ntp->nt, notify, sizeof (isp_notify_t));
2446 	if (notify->nt_lreserved) {
2447 		ISP_MEMCPY(&ntp->data, notify->nt_lreserved, QENTRY_LEN);
2448 		ntp->nt.nt_lreserved = &ntp->data;
2449 	}
2450 	ntp->seq_id = notify->nt_tagval;
2451 	ntp->tag_id = notify->nt_tagval >> 32;
2452 
2453 	SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
2454 	ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, inot->ccb_h.path, "Take FREE INOT\n");
2455 	inot->ccb_h.status = CAM_MESSAGE_RECV;
2456 	xpt_done((union ccb *)inot);
2457 	return;
2458 bad:
2459 	if (notify->nt_need_ack) {
2460 		if (((isphdr_t *)notify->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
2461 			if (isp_acknak_abts(isp, notify->nt_lreserved, ENOMEM)) {
2462 				isp_prt(isp, ISP_LOGWARN, "you lose- unable to send an ACKNAK");
2463 			}
2464 		} else {
2465 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, notify->nt_lreserved);
2466 		}
2467 	}
2468 }
2469 
2470 static void
2471 isp_target_mark_aborted_early(ispsoftc_t *isp, int chan, tstate_t *tptr, uint32_t tag_id)
2472 {
2473 	atio_private_data_t *atp, *atpool;
2474 	inot_private_data_t *ntp, *tmp;
2475 	uint32_t this_tag_id;
2476 
2477 	/*
2478 	 * First, clean any commands pending restart
2479 	 */
2480 	STAILQ_FOREACH_SAFE(ntp, &tptr->restart_queue, next, tmp) {
2481 		if (IS_24XX(isp))
2482 			this_tag_id = ((at7_entry_t *)ntp->data)->at_rxid;
2483 		else
2484 			this_tag_id = ((at2_entry_t *)ntp->data)->at_rxid;
2485 		if ((uint64_t)tag_id == TAG_ANY || tag_id == this_tag_id) {
2486 			isp_endcmd(isp, ntp->data, NIL_HANDLE, chan,
2487 			    ECMD_TERMINATE, 0);
2488 			isp_put_ntpd(isp, chan, ntp);
2489 			STAILQ_REMOVE(&tptr->restart_queue, ntp,
2490 			    inot_private_data, next);
2491 		}
2492 	}
2493 
2494 	/*
2495 	 * Now mark other ones dead as well.
2496 	 */
2497 	ISP_GET_PC(isp, chan, atpool, atpool);
2498 	for (atp = atpool; atp < &atpool[ATPDPSIZE]; atp++) {
2499 		if (atp->lun != tptr->ts_lun)
2500 			continue;
2501 		if ((uint64_t)tag_id == TAG_ANY || atp->tag == tag_id)
2502 			atp->dead = 1;
2503 	}
2504 }
2505 #endif
2506 
2507 static void
2508 isp_cam_async(void *cbarg, uint32_t code, struct cam_path *path, void *arg)
2509 {
2510 	struct cam_sim *sim;
2511 	int bus, tgt;
2512 	ispsoftc_t *isp;
2513 
2514 	sim = (struct cam_sim *)cbarg;
2515 	isp = (ispsoftc_t *) cam_sim_softc(sim);
2516 	bus = cam_sim_bus(sim);
2517 	tgt = xpt_path_target_id(path);
2518 
2519 	switch (code) {
2520 	case AC_LOST_DEVICE:
2521 		if (IS_SCSI(isp)) {
2522 			uint16_t oflags, nflags;
2523 			sdparam *sdp = SDPARAM(isp, bus);
2524 
2525 			if (tgt >= 0) {
2526 				nflags = sdp->isp_devparam[tgt].nvrm_flags;
2527 				nflags &= DPARM_SAFE_DFLT;
2528 				if (isp->isp_loaded_fw) {
2529 					nflags |= DPARM_NARROW | DPARM_ASYNC;
2530 				}
2531 				oflags = sdp->isp_devparam[tgt].goal_flags;
2532 				sdp->isp_devparam[tgt].goal_flags = nflags;
2533 				sdp->isp_devparam[tgt].dev_update = 1;
2534 				sdp->update = 1;
2535 				(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
2536 				sdp->isp_devparam[tgt].goal_flags = oflags;
2537 			}
2538 		}
2539 		break;
2540 	default:
2541 		isp_prt(isp, ISP_LOGWARN, "isp_cam_async: Code 0x%x", code);
2542 		break;
2543 	}
2544 }
2545 
2546 static void
2547 isp_poll(struct cam_sim *sim)
2548 {
2549 	ispsoftc_t *isp = cam_sim_softc(sim);
2550 
2551 	ISP_RUN_ISR(isp);
2552 }
2553 
2554 
2555 static void
2556 isp_watchdog(void *arg)
2557 {
2558 	struct ccb_scsiio *xs = arg;
2559 	ispsoftc_t *isp;
2560 	uint32_t ohandle = ISP_HANDLE_FREE, handle;
2561 
2562 	isp = XS_ISP(xs);
2563 
2564 	handle = isp_find_handle(isp, xs);
2565 
2566 	/*
2567 	 * Hand crank the interrupt code just to be sure the command isn't stuck somewhere.
2568 	 */
2569 	if (handle != ISP_HANDLE_FREE) {
2570 		ISP_RUN_ISR(isp);
2571 		ohandle = handle;
2572 		handle = isp_find_handle(isp, xs);
2573 	}
2574 	if (handle != ISP_HANDLE_FREE) {
2575 		/*
2576 		 * Try and make sure the command is really dead before
2577 		 * we release the handle (and DMA resources) for reuse.
2578 		 *
2579 		 * If we are successful in aborting the command then
2580 		 * we're done here because we'll get the command returned
2581 		 * back separately.
2582 		 */
2583 		if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
2584 			return;
2585 		}
2586 
2587 		/*
2588 		 * Note that after calling the above, the command may in
2589 		 * fact have been completed.
2590 		 */
2591 		xs = isp_find_xs(isp, handle);
2592 
2593 		/*
2594 		 * If the command no longer exists, then we won't
2595 		 * be able to find the xs again with this handle.
2596 		 */
2597 		if (xs == NULL) {
2598 			return;
2599 		}
2600 
2601 		/*
2602 		 * After this point, the command is really dead.
2603 		 */
2604 		if (XS_XFRLEN(xs)) {
2605 			ISP_DMAFREE(isp, xs, handle);
2606 		}
2607 		isp_destroy_handle(isp, handle);
2608 		isp_prt(isp, ISP_LOGERR, "%s: timeout for handle 0x%x", __func__, handle);
2609 		xs->ccb_h.status &= ~CAM_STATUS_MASK;
2610 		xs->ccb_h.status |= CAM_CMD_TIMEOUT;
2611 		isp_prt_endcmd(isp, xs);
2612 		isp_done(xs);
2613 	} else {
2614 		if (ohandle != ISP_HANDLE_FREE) {
2615 			isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle 0x%x, recovered during interrupt", __func__, ohandle);
2616 		} else {
2617 			isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle already free", __func__);
2618 		}
2619 	}
2620 }
2621 
2622 static void
2623 isp_make_here(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
2624 {
2625 	union ccb *ccb;
2626 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2627 
2628 	/*
2629 	 * Allocate a CCB, create a wildcard path for this target and schedule a rescan.
2630 	 */
2631 	ccb = xpt_alloc_ccb_nowait();
2632 	if (ccb == NULL) {
2633 		isp_prt(isp, ISP_LOGWARN, "Chan %d unable to alloc CCB for rescan", chan);
2634 		return;
2635 	}
2636 	if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(fc->sim),
2637 	    tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2638 		isp_prt(isp, ISP_LOGWARN, "unable to create path for rescan");
2639 		xpt_free_ccb(ccb);
2640 		return;
2641 	}
2642 	xpt_rescan(ccb);
2643 }
2644 
2645 static void
2646 isp_make_gone(ispsoftc_t *isp, fcportdb_t *fcp, int chan, int tgt)
2647 {
2648 	struct cam_path *tp;
2649 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2650 
2651 	if (xpt_create_path(&tp, NULL, cam_sim_path(fc->sim), tgt, CAM_LUN_WILDCARD) == CAM_REQ_CMP) {
2652 		xpt_async(AC_LOST_DEVICE, tp, NULL);
2653 		xpt_free_path(tp);
2654 	}
2655 }
2656 
2657 /*
2658  * Gone Device Timer Function- when we have decided that a device has gone
2659  * away, we wait a specific period of time prior to telling the OS it has
2660  * gone away.
2661  *
2662  * This timer function fires once a second and then scans the port database
2663  * for devices that are marked dead but still have a virtual target assigned.
2664  * We decrement a counter for that port database entry, and when it hits zero,
2665  * we tell the OS the device has gone away.
2666  */
2667 static void
2668 isp_gdt(void *arg)
2669 {
2670 	struct isp_fc *fc = arg;
2671 	taskqueue_enqueue(taskqueue_thread, &fc->gtask);
2672 }
2673 
2674 static void
2675 isp_gdt_task(void *arg, int pending)
2676 {
2677 	struct isp_fc *fc = arg;
2678 	ispsoftc_t *isp = fc->isp;
2679 	int chan = fc - isp->isp_osinfo.pc.fc;
2680 	fcportdb_t *lp;
2681 	struct ac_contract ac;
2682 	struct ac_device_changed *adc;
2683 	int dbidx, more_to_do = 0;
2684 
2685 	ISP_LOCK(isp);
2686 	isp_prt(isp, ISP_LOGDEBUG0, "Chan %d GDT timer expired", chan);
2687 	for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
2688 		lp = &FCPARAM(isp, chan)->portdb[dbidx];
2689 
2690 		if (lp->state != FC_PORTDB_STATE_ZOMBIE) {
2691 			continue;
2692 		}
2693 		if (lp->gone_timer != 0) {
2694 			lp->gone_timer -= 1;
2695 			more_to_do++;
2696 			continue;
2697 		}
2698 		isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Gone Device Timeout");
2699 		if (lp->is_target) {
2700 			lp->is_target = 0;
2701 			isp_make_gone(isp, lp, chan, dbidx);
2702 		}
2703 		if (lp->is_initiator) {
2704 			lp->is_initiator = 0;
2705 			ac.contract_number = AC_CONTRACT_DEV_CHG;
2706 			adc = (struct ac_device_changed *) ac.contract_data;
2707 			adc->wwpn = lp->port_wwn;
2708 			adc->port = lp->portid;
2709 			adc->target = dbidx;
2710 			adc->arrived = 0;
2711 			xpt_async(AC_CONTRACT, fc->path, &ac);
2712 		}
2713 		lp->state = FC_PORTDB_STATE_NIL;
2714 	}
2715 	if (fc->ready) {
2716 		if (more_to_do) {
2717 			callout_reset(&fc->gdt, hz, isp_gdt, fc);
2718 		} else {
2719 			callout_deactivate(&fc->gdt);
2720 			isp_prt(isp, ISP_LOG_SANCFG, "Chan %d Stopping Gone Device Timer @ %lu", chan, (unsigned long) time_uptime);
2721 		}
2722 	}
2723 	ISP_UNLOCK(isp);
2724 }
2725 
2726 /*
2727  * When loop goes down we remember the time and freeze CAM command queue.
2728  * During some time period we are trying to reprobe the loop.  But if we
2729  * fail, we tell the OS that devices have gone away and drop the freeze.
2730  *
2731  * We don't clear the devices out of our port database because, when loop
2732  * come back up, we have to do some actual cleanup with the chip at that
2733  * point (implicit PLOGO, e.g., to get the chip's port database state right).
2734  */
2735 static void
2736 isp_loop_changed(ispsoftc_t *isp, int chan)
2737 {
2738 	fcparam *fcp = FCPARAM(isp, chan);
2739 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2740 
2741 	if (fc->loop_down_time)
2742 		return;
2743 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop changed", chan);
2744 	if (fcp->role & ISP_ROLE_INITIATOR)
2745 		isp_freeze_loopdown(isp, chan);
2746 	fc->loop_down_time = time_uptime;
2747 	wakeup(fc);
2748 }
2749 
2750 static void
2751 isp_loop_up(ispsoftc_t *isp, int chan)
2752 {
2753 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2754 
2755 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is up", chan);
2756 	fc->loop_seen_once = 1;
2757 	fc->loop_down_time = 0;
2758 	isp_unfreeze_loopdown(isp, chan);
2759 }
2760 
2761 static void
2762 isp_loop_dead(ispsoftc_t *isp, int chan)
2763 {
2764 	fcparam *fcp = FCPARAM(isp, chan);
2765 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
2766 	fcportdb_t *lp;
2767 	struct ac_contract ac;
2768 	struct ac_device_changed *adc;
2769 	int dbidx, i;
2770 
2771 	isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop is dead", chan);
2772 
2773 	/*
2774 	 * Notify to the OS all targets who we now consider have departed.
2775 	 */
2776 	for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
2777 		lp = &fcp->portdb[dbidx];
2778 
2779 		if (lp->state == FC_PORTDB_STATE_NIL)
2780 			continue;
2781 
2782 		/*
2783 		 * XXX: CLEAN UP AND COMPLETE ANY PENDING COMMANDS FIRST!
2784 		 */
2785 		for (i = 0; i < isp->isp_maxcmds; i++) {
2786 			struct ccb_scsiio *xs;
2787 
2788 			if (ISP_H2HT(isp->isp_xflist[i].handle) != ISP_HANDLE_INITIATOR) {
2789 				continue;
2790 			}
2791 			if ((xs = isp->isp_xflist[i].cmd) == NULL) {
2792 				continue;
2793                         }
2794 			if (dbidx != XS_TGT(xs)) {
2795 				continue;
2796 			}
2797 			isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%jx orphaned by loop down timeout",
2798 			    isp->isp_xflist[i].handle, chan, XS_TGT(xs),
2799 			    (uintmax_t)XS_LUN(xs));
2800 		}
2801 
2802 		isp_prt(isp, ISP_LOGCONFIG, prom3, chan, dbidx, lp->portid, "Loop Down Timeout");
2803 		if (lp->is_target) {
2804 			lp->is_target = 0;
2805 			isp_make_gone(isp, lp, chan, dbidx);
2806 		}
2807 		if (lp->is_initiator) {
2808 			lp->is_initiator = 0;
2809 			ac.contract_number = AC_CONTRACT_DEV_CHG;
2810 			adc = (struct ac_device_changed *) ac.contract_data;
2811 			adc->wwpn = lp->port_wwn;
2812 			adc->port = lp->portid;
2813 			adc->target = dbidx;
2814 			adc->arrived = 0;
2815 			xpt_async(AC_CONTRACT, fc->path, &ac);
2816 		}
2817 	}
2818 
2819 	isp_unfreeze_loopdown(isp, chan);
2820 	fc->loop_down_time = 0;
2821 }
2822 
2823 static void
2824 isp_kthread(void *arg)
2825 {
2826 	struct isp_fc *fc = arg;
2827 	ispsoftc_t *isp = fc->isp;
2828 	int chan = fc - isp->isp_osinfo.pc.fc;
2829 	int slp = 0, d;
2830 	int lb, lim;
2831 
2832 	mtx_lock(&isp->isp_osinfo.lock);
2833 
2834 	while (isp->isp_osinfo.is_exiting == 0) {
2835 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2836 		    "Chan %d Checking FC state", chan);
2837 		lb = isp_fc_runstate(isp, chan, 250000);
2838 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2839 		    "Chan %d FC got to %s state", chan,
2840 		    isp_fc_loop_statename(lb));
2841 
2842 		/*
2843 		 * Our action is different based upon whether we're supporting
2844 		 * Initiator mode or not. If we are, we might freeze the simq
2845 		 * when loop is down and set all sorts of different delays to
2846 		 * check again.
2847 		 *
2848 		 * If not, we simply just wait for loop to come up.
2849 		 */
2850 		if (lb == LOOP_READY || lb < 0) {
2851 			slp = 0;
2852 		} else {
2853 			/*
2854 			 * If we've never seen loop up and we've waited longer
2855 			 * than quickboot time, or we've seen loop up but we've
2856 			 * waited longer than loop_down_limit, give up and go
2857 			 * to sleep until loop comes up.
2858 			 */
2859 			if (fc->loop_seen_once == 0)
2860 				lim = isp_quickboot_time;
2861 			else
2862 				lim = fc->loop_down_limit;
2863 			d = time_uptime - fc->loop_down_time;
2864 			if (d >= lim)
2865 				slp = 0;
2866 			else if (d < 10)
2867 				slp = 1;
2868 			else if (d < 30)
2869 				slp = 5;
2870 			else if (d < 60)
2871 				slp = 10;
2872 			else if (d < 120)
2873 				slp = 20;
2874 			else
2875 				slp = 30;
2876 		}
2877 
2878 		if (slp == 0) {
2879 			if (lb == LOOP_READY)
2880 				isp_loop_up(isp, chan);
2881 			else
2882 				isp_loop_dead(isp, chan);
2883 		}
2884 
2885 		isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0,
2886 		    "Chan %d sleep for %d seconds", chan, slp);
2887 		msleep(fc, &isp->isp_osinfo.lock, PRIBIO, "ispf", slp * hz);
2888 	}
2889 	fc->num_threads -= 1;
2890 	mtx_unlock(&isp->isp_osinfo.lock);
2891 	kthread_exit();
2892 }
2893 
2894 #ifdef	ISP_TARGET_MODE
2895 static void
2896 isp_abort_atio(ispsoftc_t *isp, union ccb *ccb)
2897 {
2898 	atio_private_data_t *atp;
2899 	union ccb *accb = ccb->cab.abort_ccb;
2900 	struct ccb_hdr *sccb;
2901 	tstate_t *tptr;
2902 
2903 	tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
2904 	if (tptr != NULL) {
2905 		/* Search for the ATIO among queueued. */
2906 		SLIST_FOREACH(sccb, &tptr->atios, sim_links.sle) {
2907 			if (sccb != &accb->ccb_h)
2908 				continue;
2909 			SLIST_REMOVE(&tptr->atios, sccb, ccb_hdr, sim_links.sle);
2910 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
2911 			    "Abort FREE ATIO\n");
2912 			accb->ccb_h.status = CAM_REQ_ABORTED;
2913 			xpt_done(accb);
2914 			ccb->ccb_h.status = CAM_REQ_CMP;
2915 			return;
2916 		}
2917 	}
2918 
2919 	/* Search for the ATIO among running. */
2920 	atp = isp_find_atpd(isp, XS_CHANNEL(accb), accb->atio.tag_id);
2921 	if (atp != NULL) {
2922 		/* Send TERMINATE to firmware. */
2923 		if (!atp->dead && IS_24XX(isp)) {
2924 			uint8_t storage[QENTRY_LEN];
2925 			ct7_entry_t *cto = (ct7_entry_t *) storage;
2926 
2927 			ISP_MEMZERO(cto, sizeof (ct7_entry_t));
2928 			cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
2929 			cto->ct_header.rqs_entry_count = 1;
2930 			cto->ct_nphdl = atp->nphdl;
2931 			cto->ct_rxid = atp->tag;
2932 			cto->ct_iid_lo = atp->sid;
2933 			cto->ct_iid_hi = atp->sid >> 16;
2934 			cto->ct_oxid = atp->oxid;
2935 			cto->ct_vpidx = XS_CHANNEL(accb);
2936 			cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
2937 			isp_target_put_entry(isp, cto);
2938 		}
2939 		isp_put_atpd(isp, XS_CHANNEL(accb), atp);
2940 		ccb->ccb_h.status = CAM_REQ_CMP;
2941 	} else {
2942 		ccb->ccb_h.status = CAM_UA_ABORT;
2943 	}
2944 }
2945 
2946 static void
2947 isp_abort_inot(ispsoftc_t *isp, union ccb *ccb)
2948 {
2949 	inot_private_data_t *ntp;
2950 	union ccb *accb = ccb->cab.abort_ccb;
2951 	struct ccb_hdr *sccb;
2952 	tstate_t *tptr;
2953 
2954 	tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
2955 	if (tptr != NULL) {
2956 		/* Search for the INOT among queueued. */
2957 		SLIST_FOREACH(sccb, &tptr->inots, sim_links.sle) {
2958 			if (sccb != &accb->ccb_h)
2959 				continue;
2960 			SLIST_REMOVE(&tptr->inots, sccb, ccb_hdr, sim_links.sle);
2961 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, sccb->path,
2962 			    "Abort FREE INOT\n");
2963 			accb->ccb_h.status = CAM_REQ_ABORTED;
2964 			xpt_done(accb);
2965 			ccb->ccb_h.status = CAM_REQ_CMP;
2966 			return;
2967 		}
2968 	}
2969 
2970 	/* Search for the INOT among running. */
2971 	ntp = isp_find_ntpd(isp, XS_CHANNEL(accb), accb->cin1.tag_id, accb->cin1.seq_id);
2972 	if (ntp != NULL) {
2973 		if (ntp->nt.nt_need_ack) {
2974 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK,
2975 			    ntp->nt.nt_lreserved);
2976 		}
2977 		isp_put_ntpd(isp, XS_CHANNEL(accb), ntp);
2978 		ccb->ccb_h.status = CAM_REQ_CMP;
2979 	} else {
2980 		ccb->ccb_h.status = CAM_UA_ABORT;
2981 		return;
2982 	}
2983 }
2984 #endif
2985 
2986 static void
2987 isp_action(struct cam_sim *sim, union ccb *ccb)
2988 {
2989 	int bus, tgt, ts, error;
2990 	ispsoftc_t *isp;
2991 	struct ccb_trans_settings *cts;
2992 
2993 	CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
2994 
2995 	isp = (ispsoftc_t *)cam_sim_softc(sim);
2996 	mtx_assert(&isp->isp_lock, MA_OWNED);
2997 	isp_prt(isp, ISP_LOGDEBUG2, "isp_action code %x", ccb->ccb_h.func_code);
2998 	ISP_PCMD(ccb) = NULL;
2999 
3000 	switch (ccb->ccb_h.func_code) {
3001 	case XPT_SCSI_IO:	/* Execute the requested I/O operation */
3002 		bus = XS_CHANNEL(ccb);
3003 		/*
3004 		 * Do a couple of preliminary checks...
3005 		 */
3006 		if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3007 			if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3008 				ccb->ccb_h.status = CAM_REQ_INVALID;
3009 				isp_done((struct ccb_scsiio *) ccb);
3010 				break;
3011 			}
3012 		}
3013 		ccb->csio.req_map = NULL;
3014 #ifdef	DIAGNOSTIC
3015 		if (ccb->ccb_h.target_id >= ISP_MAX_TARGETS(isp)) {
3016 			xpt_print(ccb->ccb_h.path, "invalid target\n");
3017 			ccb->ccb_h.status = CAM_PATH_INVALID;
3018 		} else if (ISP_MAX_LUNS(isp) > 0 &&
3019 		    ccb->ccb_h.target_lun >= ISP_MAX_LUNS(isp)) {
3020 			xpt_print(ccb->ccb_h.path, "invalid lun\n");
3021 			ccb->ccb_h.status = CAM_PATH_INVALID;
3022 		}
3023 		if (ccb->ccb_h.status == CAM_PATH_INVALID) {
3024 			xpt_done(ccb);
3025 			break;
3026 		}
3027 #endif
3028 		ccb->csio.scsi_status = SCSI_STATUS_OK;
3029 		if (isp_get_pcmd(isp, ccb)) {
3030 			isp_prt(isp, ISP_LOGWARN, "out of PCMDs");
3031 			cam_freeze_devq(ccb->ccb_h.path);
3032 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 250, 0);
3033 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3034 			xpt_done(ccb);
3035 			break;
3036 		}
3037 		error = isp_start((XS_T *) ccb);
3038 		switch (error) {
3039 		case CMD_QUEUED:
3040 			ccb->ccb_h.status |= CAM_SIM_QUEUED;
3041 			if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) {
3042 				break;
3043 			}
3044 			ts = ccb->ccb_h.timeout;
3045 			if (ts == CAM_TIME_DEFAULT) {
3046 				ts = 60*1000;
3047 			}
3048 			ts = isp_mstohz(ts);
3049 			callout_reset(&PISP_PCMD(ccb)->wdog, ts, isp_watchdog, ccb);
3050 			break;
3051 		case CMD_RQLATER:
3052 			isp_prt(isp, ISP_LOGDEBUG0, "%d.%jx retry later",
3053 			    XS_TGT(ccb), (uintmax_t)XS_LUN(ccb));
3054 			cam_freeze_devq(ccb->ccb_h.path);
3055 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
3056 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3057 			isp_free_pcmd(isp, ccb);
3058 			xpt_done(ccb);
3059 			break;
3060 		case CMD_EAGAIN:
3061 			isp_free_pcmd(isp, ccb);
3062 			cam_freeze_devq(ccb->ccb_h.path);
3063 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 100, 0);
3064 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3065 			xpt_done(ccb);
3066 			break;
3067 		case CMD_COMPLETE:
3068 			isp_done((struct ccb_scsiio *) ccb);
3069 			break;
3070 		default:
3071 			isp_prt(isp, ISP_LOGERR, "What's this? 0x%x at %d in file %s", error, __LINE__, __FILE__);
3072 			ccb->ccb_h.status = CAM_REQUEUE_REQ;
3073 			isp_free_pcmd(isp, ccb);
3074 			xpt_done(ccb);
3075 		}
3076 		break;
3077 
3078 #ifdef	ISP_TARGET_MODE
3079 	case XPT_EN_LUN:		/* Enable/Disable LUN as a target */
3080 		if (ccb->cel.enable) {
3081 			isp_enable_lun(isp, ccb);
3082 		} else {
3083 			isp_disable_lun(isp, ccb);
3084 		}
3085 		break;
3086 	case XPT_IMMEDIATE_NOTIFY:	/* Add Immediate Notify Resource */
3087 	case XPT_ACCEPT_TARGET_IO:	/* Add Accept Target IO Resource */
3088 	{
3089 		tstate_t *tptr = get_lun_statep(isp, XS_CHANNEL(ccb), ccb->ccb_h.target_lun);
3090 		if (tptr == NULL) {
3091 			const char *str;
3092 
3093 			if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY)
3094 				str = "XPT_IMMEDIATE_NOTIFY";
3095 			else
3096 				str = "XPT_ACCEPT_TARGET_IO";
3097 			ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path,
3098 			    "%s: no state pointer found for %s\n",
3099 			    __func__, str);
3100 			ccb->ccb_h.status = CAM_DEV_NOT_THERE;
3101 			xpt_done(ccb);
3102 			break;
3103 		}
3104 		ccb->ccb_h.spriv_field0 = 0;
3105 		ccb->ccb_h.spriv_ptr1 = isp;
3106 
3107 		if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3108 			ccb->atio.tag_id = 0;
3109 			SLIST_INSERT_HEAD(&tptr->atios, &ccb->ccb_h, sim_links.sle);
3110 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
3111 			    "Put FREE ATIO\n");
3112 		} else if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
3113 			ccb->cin1.seq_id = ccb->cin1.tag_id = 0;
3114 			SLIST_INSERT_HEAD(&tptr->inots, &ccb->ccb_h, sim_links.sle);
3115 			ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path,
3116 			    "Put FREE INOT\n");
3117 		}
3118 		ccb->ccb_h.status = CAM_REQ_INPROG;
3119 		break;
3120 	}
3121 	case XPT_NOTIFY_ACKNOWLEDGE:		/* notify ack */
3122 	{
3123 		inot_private_data_t *ntp;
3124 
3125 		/*
3126 		 * XXX: Because we cannot guarantee that the path information in the notify acknowledge ccb
3127 		 * XXX: matches that for the immediate notify, we have to *search* for the notify structure
3128 		 */
3129 		/*
3130 		 * All the relevant path information is in the associated immediate notify
3131 		 */
3132 		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);
3133 		ntp = isp_find_ntpd(isp, XS_CHANNEL(ccb), ccb->cna2.tag_id, ccb->cna2.seq_id);
3134 		if (ntp == NULL) {
3135 			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__,
3136 			     ccb->cna2.tag_id, ccb->cna2.seq_id);
3137 			ccb->ccb_h.status = CAM_DEV_NOT_THERE;
3138 			xpt_done(ccb);
3139 			break;
3140 		}
3141 		if (isp_handle_platform_target_notify_ack(isp, &ntp->nt,
3142 		    (ccb->ccb_h.flags & CAM_SEND_STATUS) ? ccb->cna2.arg : 0)) {
3143 			cam_freeze_devq(ccb->ccb_h.path);
3144 			cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
3145 			ccb->ccb_h.status &= ~CAM_STATUS_MASK;
3146 			ccb->ccb_h.status |= CAM_REQUEUE_REQ;
3147 			break;
3148 		}
3149 		isp_put_ntpd(isp, XS_CHANNEL(ccb), ntp);
3150 		ccb->ccb_h.status = CAM_REQ_CMP;
3151 		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);
3152 		xpt_done(ccb);
3153 		break;
3154 	}
3155 	case XPT_CONT_TARGET_IO:
3156 		isp_target_start_ctio(isp, ccb, FROM_CAM);
3157 		break;
3158 #endif
3159 	case XPT_RESET_DEV:		/* BDR the specified SCSI device */
3160 		bus = cam_sim_bus(xpt_path_sim(ccb->ccb_h.path));
3161 		tgt = ccb->ccb_h.target_id;
3162 		tgt |= (bus << 16);
3163 
3164 		error = isp_control(isp, ISPCTL_RESET_DEV, bus, tgt);
3165 		if (error) {
3166 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3167 		} else {
3168 			/*
3169 			 * If we have a FC device, reset the Command
3170 			 * Reference Number, because the target will expect
3171 			 * that we re-start the CRN at 1 after a reset.
3172 			 */
3173 			if (IS_FC(isp))
3174 				isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3175 
3176 			ccb->ccb_h.status = CAM_REQ_CMP;
3177 		}
3178 		xpt_done(ccb);
3179 		break;
3180 	case XPT_ABORT:			/* Abort the specified CCB */
3181 	{
3182 		union ccb *accb = ccb->cab.abort_ccb;
3183 		switch (accb->ccb_h.func_code) {
3184 #ifdef	ISP_TARGET_MODE
3185 		case XPT_ACCEPT_TARGET_IO:
3186 			isp_abort_atio(isp, ccb);
3187 			break;
3188 		case XPT_IMMEDIATE_NOTIFY:
3189 			isp_abort_inot(isp, ccb);
3190 			break;
3191 #endif
3192 		case XPT_SCSI_IO:
3193 			error = isp_control(isp, ISPCTL_ABORT_CMD, accb);
3194 			if (error) {
3195 				ccb->ccb_h.status = CAM_UA_ABORT;
3196 			} else {
3197 				ccb->ccb_h.status = CAM_REQ_CMP;
3198 			}
3199 			break;
3200 		default:
3201 			ccb->ccb_h.status = CAM_REQ_INVALID;
3202 			break;
3203 		}
3204 		/*
3205 		 * This is not a queued CCB, so the caller expects it to be
3206 		 * complete when control is returned.
3207 		 */
3208 		break;
3209 	}
3210 #define	IS_CURRENT_SETTINGS(c)	(c->type == CTS_TYPE_CURRENT_SETTINGS)
3211 	case XPT_SET_TRAN_SETTINGS:	/* Nexus Settings */
3212 		cts = &ccb->cts;
3213 		if (!IS_CURRENT_SETTINGS(cts)) {
3214 			ccb->ccb_h.status = CAM_REQ_INVALID;
3215 			xpt_done(ccb);
3216 			break;
3217 		}
3218 		tgt = cts->ccb_h.target_id;
3219 		bus = cam_sim_bus(xpt_path_sim(cts->ccb_h.path));
3220 		if (IS_SCSI(isp)) {
3221 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3222 			struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3223 			sdparam *sdp = SDPARAM(isp, bus);
3224 			uint16_t *dptr;
3225 
3226 			if (spi->valid == 0 && scsi->valid == 0) {
3227 				ccb->ccb_h.status = CAM_REQ_CMP;
3228 				xpt_done(ccb);
3229 				break;
3230 			}
3231 
3232 			/*
3233 			 * We always update (internally) from goal_flags
3234 			 * so any request to change settings just gets
3235 			 * vectored to that location.
3236 			 */
3237 			dptr = &sdp->isp_devparam[tgt].goal_flags;
3238 
3239 			if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3240 				if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
3241 					*dptr |= DPARM_DISC;
3242 				else
3243 					*dptr &= ~DPARM_DISC;
3244 			}
3245 
3246 			if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3247 				if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
3248 					*dptr |= DPARM_TQING;
3249 				else
3250 					*dptr &= ~DPARM_TQING;
3251 			}
3252 
3253 			if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3254 				if (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
3255 					*dptr |= DPARM_WIDE;
3256 				else
3257 					*dptr &= ~DPARM_WIDE;
3258 			}
3259 
3260 			/*
3261 			 * XXX: FIX ME
3262 			 */
3263 			if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) && (spi->valid & CTS_SPI_VALID_SYNC_RATE) && (spi->sync_period && spi->sync_offset)) {
3264 				*dptr |= DPARM_SYNC;
3265 				/*
3266 				 * XXX: CHECK FOR LEGALITY
3267 				 */
3268 				sdp->isp_devparam[tgt].goal_period = spi->sync_period;
3269 				sdp->isp_devparam[tgt].goal_offset = spi->sync_offset;
3270 			} else {
3271 				*dptr &= ~DPARM_SYNC;
3272 			}
3273 			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,
3274 			    sdp->isp_devparam[tgt].goal_offset, sdp->isp_devparam[tgt].goal_period);
3275 			sdp->isp_devparam[tgt].dev_update = 1;
3276 			sdp->update = 1;
3277 		}
3278 		ccb->ccb_h.status = CAM_REQ_CMP;
3279 		xpt_done(ccb);
3280 		break;
3281 	case XPT_GET_TRAN_SETTINGS:
3282 		cts = &ccb->cts;
3283 		tgt = cts->ccb_h.target_id;
3284 		bus = cam_sim_bus(xpt_path_sim(cts->ccb_h.path));
3285 		if (IS_FC(isp)) {
3286 			fcparam *fcp = FCPARAM(isp, bus);
3287 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3288 			struct ccb_trans_settings_fc *fc = &cts->xport_specific.fc;
3289 
3290 			cts->protocol = PROTO_SCSI;
3291 			cts->protocol_version = SCSI_REV_2;
3292 			cts->transport = XPORT_FC;
3293 			cts->transport_version = 0;
3294 
3295 			scsi->valid = CTS_SCSI_VALID_TQ;
3296 			scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3297 			fc->valid = CTS_FC_VALID_SPEED;
3298 			fc->bitrate = 100000;
3299 			fc->bitrate *= fcp->isp_gbspeed;
3300 			if (tgt < MAX_FC_TARG) {
3301 				fcportdb_t *lp = &fcp->portdb[tgt];
3302 				fc->wwnn = lp->node_wwn;
3303 				fc->wwpn = lp->port_wwn;
3304 				fc->port = lp->portid;
3305 				fc->valid |= CTS_FC_VALID_WWNN | CTS_FC_VALID_WWPN | CTS_FC_VALID_PORT;
3306 			}
3307 		} else {
3308 			struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3309 			struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3310 			sdparam *sdp = SDPARAM(isp, bus);
3311 			uint16_t dval, pval, oval;
3312 
3313 			if (IS_CURRENT_SETTINGS(cts)) {
3314 				sdp->isp_devparam[tgt].dev_refresh = 1;
3315 				sdp->update = 1;
3316 				(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
3317 				dval = sdp->isp_devparam[tgt].actv_flags;
3318 				oval = sdp->isp_devparam[tgt].actv_offset;
3319 				pval = sdp->isp_devparam[tgt].actv_period;
3320 			} else {
3321 				dval = sdp->isp_devparam[tgt].nvrm_flags;
3322 				oval = sdp->isp_devparam[tgt].nvrm_offset;
3323 				pval = sdp->isp_devparam[tgt].nvrm_period;
3324 			}
3325 
3326 			cts->protocol = PROTO_SCSI;
3327 			cts->protocol_version = SCSI_REV_2;
3328 			cts->transport = XPORT_SPI;
3329 			cts->transport_version = 2;
3330 
3331 			spi->valid = 0;
3332 			scsi->valid = 0;
3333 			spi->flags = 0;
3334 			scsi->flags = 0;
3335 			if (dval & DPARM_DISC) {
3336 				spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3337 			}
3338 			if ((dval & DPARM_SYNC) && oval && pval) {
3339 				spi->sync_offset = oval;
3340 				spi->sync_period = pval;
3341 			} else {
3342 				spi->sync_offset = 0;
3343 				spi->sync_period = 0;
3344 			}
3345 			spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3346 			spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3347 			spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3348 			if (dval & DPARM_WIDE) {
3349 				spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3350 			} else {
3351 				spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3352 			}
3353 			if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3354 				scsi->valid = CTS_SCSI_VALID_TQ;
3355 				if (dval & DPARM_TQING) {
3356 					scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3357 				}
3358 				spi->valid |= CTS_SPI_VALID_DISC;
3359 			}
3360 			isp_prt(isp, ISP_LOGDEBUG0, "GET %s (%d.%d.%jx) to flags %x off %x per %x", IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM",
3361 			    bus, tgt, (uintmax_t)cts->ccb_h.target_lun, dval, oval, pval);
3362 		}
3363 		ccb->ccb_h.status = CAM_REQ_CMP;
3364 		xpt_done(ccb);
3365 		break;
3366 
3367 	case XPT_CALC_GEOMETRY:
3368 		cam_calc_geometry(&ccb->ccg, 1);
3369 		xpt_done(ccb);
3370 		break;
3371 
3372 	case XPT_RESET_BUS:		/* Reset the specified bus */
3373 		bus = cam_sim_bus(sim);
3374 		error = isp_control(isp, ISPCTL_RESET_BUS, bus);
3375 		if (error) {
3376 			ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3377 			xpt_done(ccb);
3378 			break;
3379 		}
3380 		if (bootverbose) {
3381 			xpt_print(ccb->ccb_h.path, "reset bus on channel %d\n", bus);
3382 		}
3383 		if (IS_FC(isp)) {
3384 			xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, 0);
3385 		} else {
3386 			xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, 0);
3387 		}
3388 		ccb->ccb_h.status = CAM_REQ_CMP;
3389 		xpt_done(ccb);
3390 		break;
3391 
3392 	case XPT_TERM_IO:		/* Terminate the I/O process */
3393 		ccb->ccb_h.status = CAM_REQ_INVALID;
3394 		xpt_done(ccb);
3395 		break;
3396 
3397 	case XPT_SET_SIM_KNOB:		/* Set SIM knobs */
3398 	{
3399 		struct ccb_sim_knob *kp = &ccb->knob;
3400 		fcparam *fcp;
3401 
3402 		if (!IS_FC(isp)) {
3403 			ccb->ccb_h.status = CAM_REQ_INVALID;
3404 			xpt_done(ccb);
3405 			break;
3406 		}
3407 
3408 		bus = cam_sim_bus(xpt_path_sim(kp->ccb_h.path));
3409 		fcp = FCPARAM(isp, bus);
3410 
3411 		if (kp->xport_specific.fc.valid & KNOB_VALID_ADDRESS) {
3412 			fcp->isp_wwnn = ISP_FC_PC(isp, bus)->def_wwnn = kp->xport_specific.fc.wwnn;
3413 			fcp->isp_wwpn = ISP_FC_PC(isp, bus)->def_wwpn = kp->xport_specific.fc.wwpn;
3414 			isp_prt(isp, ISP_LOGALL, "Setting Channel %d wwns to 0x%jx 0x%jx", bus, fcp->isp_wwnn, fcp->isp_wwpn);
3415 		}
3416 		ccb->ccb_h.status = CAM_REQ_CMP;
3417 		if (kp->xport_specific.fc.valid & KNOB_VALID_ROLE) {
3418 			int rchange = 0;
3419 			int newrole = 0;
3420 
3421 			switch (kp->xport_specific.fc.role) {
3422 			case KNOB_ROLE_NONE:
3423 				if (fcp->role != ISP_ROLE_NONE) {
3424 					rchange = 1;
3425 					newrole = ISP_ROLE_NONE;
3426 				}
3427 				break;
3428 			case KNOB_ROLE_TARGET:
3429 				if (fcp->role != ISP_ROLE_TARGET) {
3430 					rchange = 1;
3431 					newrole = ISP_ROLE_TARGET;
3432 				}
3433 				break;
3434 			case KNOB_ROLE_INITIATOR:
3435 				if (fcp->role != ISP_ROLE_INITIATOR) {
3436 					rchange = 1;
3437 					newrole = ISP_ROLE_INITIATOR;
3438 				}
3439 				break;
3440 			case KNOB_ROLE_BOTH:
3441 				if (fcp->role != ISP_ROLE_BOTH) {
3442 					rchange = 1;
3443 					newrole = ISP_ROLE_BOTH;
3444 				}
3445 				break;
3446 			}
3447 			if (rchange) {
3448 				ISP_PATH_PRT(isp, ISP_LOGCONFIG, ccb->ccb_h.path, "changing role on from %d to %d\n", fcp->role, newrole);
3449 				if (isp_control(isp, ISPCTL_CHANGE_ROLE,
3450 				    bus, newrole) != 0) {
3451 					ccb->ccb_h.status = CAM_REQ_CMP_ERR;
3452 					xpt_done(ccb);
3453 					break;
3454 				}
3455 			}
3456 		}
3457 		xpt_done(ccb);
3458 		break;
3459 	}
3460 	case XPT_GET_SIM_KNOB_OLD:	/* Get SIM knobs -- compat value */
3461 	case XPT_GET_SIM_KNOB:		/* Get SIM knobs */
3462 	{
3463 		struct ccb_sim_knob *kp = &ccb->knob;
3464 
3465 		if (IS_FC(isp)) {
3466 			fcparam *fcp;
3467 
3468 			bus = cam_sim_bus(xpt_path_sim(kp->ccb_h.path));
3469 			fcp = FCPARAM(isp, bus);
3470 
3471 			kp->xport_specific.fc.wwnn = fcp->isp_wwnn;
3472 			kp->xport_specific.fc.wwpn = fcp->isp_wwpn;
3473 			switch (fcp->role) {
3474 			case ISP_ROLE_NONE:
3475 				kp->xport_specific.fc.role = KNOB_ROLE_NONE;
3476 				break;
3477 			case ISP_ROLE_TARGET:
3478 				kp->xport_specific.fc.role = KNOB_ROLE_TARGET;
3479 				break;
3480 			case ISP_ROLE_INITIATOR:
3481 				kp->xport_specific.fc.role = KNOB_ROLE_INITIATOR;
3482 				break;
3483 			case ISP_ROLE_BOTH:
3484 				kp->xport_specific.fc.role = KNOB_ROLE_BOTH;
3485 				break;
3486 			}
3487 			kp->xport_specific.fc.valid = KNOB_VALID_ADDRESS | KNOB_VALID_ROLE;
3488 			ccb->ccb_h.status = CAM_REQ_CMP;
3489 		} else {
3490 			ccb->ccb_h.status = CAM_REQ_INVALID;
3491 		}
3492 		xpt_done(ccb);
3493 		break;
3494 	}
3495 	case XPT_PATH_INQ:		/* Path routing inquiry */
3496 	{
3497 		struct ccb_pathinq *cpi = &ccb->cpi;
3498 
3499 		cpi->version_num = 1;
3500 #ifdef	ISP_TARGET_MODE
3501 		if (IS_FC(isp) && ISP_CAP_TMODE(isp) && ISP_CAP_SCCFW(isp))
3502 			cpi->target_sprt = PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3503 		else
3504 #endif
3505 			cpi->target_sprt = 0;
3506 		cpi->hba_eng_cnt = 0;
3507 		cpi->max_target = ISP_MAX_TARGETS(isp) - 1;
3508 		cpi->max_lun = ISP_MAX_LUNS(isp) == 0 ?
3509 		    255 : ISP_MAX_LUNS(isp) - 1;
3510 		cpi->bus_id = cam_sim_bus(sim);
3511 		if (isp->isp_osinfo.sixtyfourbit)
3512 			cpi->maxio = (ISP_NSEG64_MAX - 1) * PAGE_SIZE;
3513 		else
3514 			cpi->maxio = (ISP_NSEG_MAX - 1) * PAGE_SIZE;
3515 
3516 		bus = cam_sim_bus(xpt_path_sim(cpi->ccb_h.path));
3517 		if (IS_FC(isp)) {
3518 			fcparam *fcp = FCPARAM(isp, bus);
3519 
3520 			cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
3521 			cpi->hba_misc |= PIM_EXTLUNS | PIM_NOSCAN;
3522 
3523 			/*
3524 			 * Because our loop ID can shift from time to time,
3525 			 * make our initiator ID out of range of our bus.
3526 			 */
3527 			cpi->initiator_id = cpi->max_target + 1;
3528 
3529 			/*
3530 			 * Set base transfer capabilities for Fibre Channel, for this HBA.
3531 			 */
3532 			if (IS_25XX(isp)) {
3533 				cpi->base_transfer_speed = 8000000;
3534 			} else if (IS_24XX(isp)) {
3535 				cpi->base_transfer_speed = 4000000;
3536 			} else if (IS_23XX(isp)) {
3537 				cpi->base_transfer_speed = 2000000;
3538 			} else {
3539 				cpi->base_transfer_speed = 1000000;
3540 			}
3541 			cpi->hba_inquiry = PI_TAG_ABLE;
3542 			cpi->transport = XPORT_FC;
3543 			cpi->transport_version = 0;
3544 			cpi->xport_specific.fc.wwnn = fcp->isp_wwnn;
3545 			cpi->xport_specific.fc.wwpn = fcp->isp_wwpn;
3546 			cpi->xport_specific.fc.port = fcp->isp_portid;
3547 			cpi->xport_specific.fc.bitrate = fcp->isp_gbspeed * 1000;
3548 		} else {
3549 			sdparam *sdp = SDPARAM(isp, bus);
3550 			cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3551 			cpi->hba_misc = PIM_UNMAPPED;
3552 			cpi->initiator_id = sdp->isp_initiator_id;
3553 			cpi->base_transfer_speed = 3300;
3554 			cpi->transport = XPORT_SPI;
3555 			cpi->transport_version = 2;
3556 		}
3557 		cpi->protocol = PROTO_SCSI;
3558 		cpi->protocol_version = SCSI_REV_2;
3559 		strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3560 		strlcpy(cpi->hba_vid, "Qlogic", HBA_IDLEN);
3561 		strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3562 		cpi->unit_number = cam_sim_unit(sim);
3563 		cpi->ccb_h.status = CAM_REQ_CMP;
3564 		xpt_done(ccb);
3565 		break;
3566 	}
3567 	default:
3568 		ccb->ccb_h.status = CAM_REQ_INVALID;
3569 		xpt_done(ccb);
3570 		break;
3571 	}
3572 }
3573 
3574 void
3575 isp_done(XS_T *sccb)
3576 {
3577 	ispsoftc_t *isp = XS_ISP(sccb);
3578 	uint32_t status;
3579 
3580 	if (XS_NOERR(sccb))
3581 		XS_SETERR(sccb, CAM_REQ_CMP);
3582 
3583 	if ((sccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && (sccb->scsi_status != SCSI_STATUS_OK)) {
3584 		sccb->ccb_h.status &= ~CAM_STATUS_MASK;
3585 		if ((sccb->scsi_status == SCSI_STATUS_CHECK_COND) && (sccb->ccb_h.status & CAM_AUTOSNS_VALID) == 0) {
3586 			sccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
3587 		} else {
3588 			sccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
3589 		}
3590 	}
3591 
3592 	sccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3593 	status = sccb->ccb_h.status & CAM_STATUS_MASK;
3594 	if (status != CAM_REQ_CMP &&
3595 	    (sccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
3596 		sccb->ccb_h.status |= CAM_DEV_QFRZN;
3597 		xpt_freeze_devq(sccb->ccb_h.path, 1);
3598 	}
3599 
3600 	if (ISP_PCMD(sccb)) {
3601 		if (callout_active(&PISP_PCMD(sccb)->wdog))
3602 			callout_stop(&PISP_PCMD(sccb)->wdog);
3603 		isp_free_pcmd(isp, (union ccb *) sccb);
3604 	}
3605 	xpt_done((union ccb *) sccb);
3606 }
3607 
3608 void
3609 isp_async(ispsoftc_t *isp, ispasync_t cmd, ...)
3610 {
3611 	int bus;
3612 	static const char prom[] = "Chan %d [%d] WWPN 0x%16jx PortID 0x%06x handle 0x%x %s %s";
3613 	char buf[64];
3614 	char *msg = NULL;
3615 	target_id_t tgt;
3616 	fcportdb_t *lp;
3617 	struct isp_fc *fc;
3618 	struct cam_path *tmppath;
3619 	struct ac_contract ac;
3620 	struct ac_device_changed *adc;
3621 	va_list ap;
3622 
3623 	switch (cmd) {
3624 	case ISPASYNC_NEW_TGT_PARAMS:
3625 	{
3626 		struct ccb_trans_settings_scsi *scsi;
3627 		struct ccb_trans_settings_spi *spi;
3628 		int flags, tgt;
3629 		sdparam *sdp;
3630 		struct ccb_trans_settings cts;
3631 
3632 		memset(&cts, 0, sizeof (struct ccb_trans_settings));
3633 
3634 		va_start(ap, cmd);
3635 		bus = va_arg(ap, int);
3636 		tgt = va_arg(ap, int);
3637 		va_end(ap);
3638 		sdp = SDPARAM(isp, bus);
3639 
3640 		if (xpt_create_path(&tmppath, NULL, cam_sim_path(ISP_SPI_PC(isp, bus)->sim), tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
3641 			isp_prt(isp, ISP_LOGWARN, "isp_async cannot make temp path for %d.%d", tgt, bus);
3642 			break;
3643 		}
3644 		flags = sdp->isp_devparam[tgt].actv_flags;
3645 		cts.type = CTS_TYPE_CURRENT_SETTINGS;
3646 		cts.protocol = PROTO_SCSI;
3647 		cts.transport = XPORT_SPI;
3648 
3649 		scsi = &cts.proto_specific.scsi;
3650 		spi = &cts.xport_specific.spi;
3651 
3652 		if (flags & DPARM_TQING) {
3653 			scsi->valid |= CTS_SCSI_VALID_TQ;
3654 			scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3655 		}
3656 
3657 		if (flags & DPARM_DISC) {
3658 			spi->valid |= CTS_SPI_VALID_DISC;
3659 			spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3660 		}
3661 		spi->flags |= CTS_SPI_VALID_BUS_WIDTH;
3662 		if (flags & DPARM_WIDE) {
3663 			spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3664 		} else {
3665 			spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3666 		}
3667 		if (flags & DPARM_SYNC) {
3668 			spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3669 			spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3670 			spi->sync_period = sdp->isp_devparam[tgt].actv_period;
3671 			spi->sync_offset = sdp->isp_devparam[tgt].actv_offset;
3672 		}
3673 		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);
3674 		xpt_setup_ccb(&cts.ccb_h, tmppath, 1);
3675 		xpt_async(AC_TRANSFER_NEG, tmppath, &cts);
3676 		xpt_free_path(tmppath);
3677 		break;
3678 	}
3679 	case ISPASYNC_BUS_RESET:
3680 	{
3681 		va_start(ap, cmd);
3682 		bus = va_arg(ap, int);
3683 		va_end(ap);
3684 		isp_prt(isp, ISP_LOGINFO, "SCSI bus reset on bus %d detected", bus);
3685 		if (IS_FC(isp)) {
3686 			xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, NULL);
3687 		} else {
3688 			xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, NULL);
3689 		}
3690 		break;
3691 	}
3692 	case ISPASYNC_LIP:
3693 		if (msg == NULL)
3694 			msg = "LIP Received";
3695 		/* FALLTHROUGH */
3696 	case ISPASYNC_LOOP_RESET:
3697 		if (msg == NULL)
3698 			msg = "LOOP Reset";
3699 		/* FALLTHROUGH */
3700 	case ISPASYNC_LOOP_DOWN:
3701 		if (msg == NULL)
3702 			msg = "LOOP Down";
3703 		va_start(ap, cmd);
3704 		bus = va_arg(ap, int);
3705 		va_end(ap);
3706 		isp_fcp_reset_crn(isp, bus, /*tgt*/0, /*tgt_set*/ 0);
3707 		isp_loop_changed(isp, bus);
3708 		isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
3709 		break;
3710 	case ISPASYNC_LOOP_UP:
3711 		va_start(ap, cmd);
3712 		bus = va_arg(ap, int);
3713 		va_end(ap);
3714 		isp_loop_changed(isp, bus);
3715 		isp_prt(isp, ISP_LOGINFO, "Chan %d Loop UP", bus);
3716 		break;
3717 	case ISPASYNC_DEV_ARRIVED:
3718 		va_start(ap, cmd);
3719 		bus = va_arg(ap, int);
3720 		lp = va_arg(ap, fcportdb_t *);
3721 		va_end(ap);
3722 		fc = ISP_FC_PC(isp, bus);
3723 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3724 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3725 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "arrived");
3726 		if ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) &&
3727 		    (lp->prli_word3 & PRLI_WD3_TARGET_FUNCTION)) {
3728 			lp->is_target = 1;
3729 			isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3730 			isp_make_here(isp, lp, bus, tgt);
3731 		}
3732 		if ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
3733 		    (lp->prli_word3 & PRLI_WD3_INITIATOR_FUNCTION)) {
3734 			lp->is_initiator = 1;
3735 			ac.contract_number = AC_CONTRACT_DEV_CHG;
3736 			adc = (struct ac_device_changed *) ac.contract_data;
3737 			adc->wwpn = lp->port_wwn;
3738 			adc->port = lp->portid;
3739 			adc->target = tgt;
3740 			adc->arrived = 1;
3741 			xpt_async(AC_CONTRACT, fc->path, &ac);
3742 		}
3743 		break;
3744 	case ISPASYNC_DEV_CHANGED:
3745 		va_start(ap, cmd);
3746 		bus = va_arg(ap, int);
3747 		lp = va_arg(ap, fcportdb_t *);
3748 		va_end(ap);
3749 		fc = ISP_FC_PC(isp, bus);
3750 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3751 		isp_gen_role_str(buf, sizeof (buf), lp->new_prli_word3);
3752 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->new_portid, lp->handle, buf, "changed");
3753 changed:
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 				isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3760 				isp_make_here(isp, lp, bus, tgt);
3761 			} else {
3762 				isp_make_gone(isp, lp, bus, tgt);
3763 				isp_fcp_reset_crn(isp, bus, tgt, /*tgt_set*/ 1);
3764 			}
3765 		}
3766 		if (lp->is_initiator !=
3767 		    ((FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) &&
3768 		     (lp->new_prli_word3 & PRLI_WD3_INITIATOR_FUNCTION))) {
3769 			lp->is_initiator = !lp->is_initiator;
3770 			ac.contract_number = AC_CONTRACT_DEV_CHG;
3771 			adc = (struct ac_device_changed *) ac.contract_data;
3772 			adc->wwpn = lp->port_wwn;
3773 			adc->port = lp->portid;
3774 			adc->target = tgt;
3775 			adc->arrived = lp->is_initiator;
3776 			xpt_async(AC_CONTRACT, fc->path, &ac);
3777 		}
3778 		break;
3779 	case ISPASYNC_DEV_STAYED:
3780 		va_start(ap, cmd);
3781 		bus = va_arg(ap, int);
3782 		lp = va_arg(ap, fcportdb_t *);
3783 		va_end(ap);
3784 		fc = ISP_FC_PC(isp, bus);
3785 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3786 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3787 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "stayed");
3788 		goto changed;
3789 	case ISPASYNC_DEV_GONE:
3790 		va_start(ap, cmd);
3791 		bus = va_arg(ap, int);
3792 		lp = va_arg(ap, fcportdb_t *);
3793 		va_end(ap);
3794 		fc = ISP_FC_PC(isp, bus);
3795 		tgt = FC_PORTDB_TGT(isp, bus, lp);
3796 		/*
3797 		 * If this has a virtual target or initiator set the isp_gdt
3798 		 * timer running on it to delay its departure.
3799 		 */
3800 		isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
3801 		if (lp->is_target || lp->is_initiator) {
3802 			lp->state = FC_PORTDB_STATE_ZOMBIE;
3803 			lp->gone_timer = fc->gone_device_time;
3804 			isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone zombie");
3805 			if (fc->ready && !callout_active(&fc->gdt)) {
3806 				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);
3807 				callout_reset(&fc->gdt, hz, isp_gdt, fc);
3808 			}
3809 			break;
3810 		}
3811 		isp_prt(isp, ISP_LOGCONFIG, prom, bus, tgt, lp->port_wwn, lp->portid, lp->handle, buf, "gone");
3812 		break;
3813 	case ISPASYNC_CHANGE_NOTIFY:
3814 	{
3815 		char *msg;
3816 		int evt, nphdl, nlstate, portid, reason;
3817 
3818 		va_start(ap, cmd);
3819 		bus = va_arg(ap, int);
3820 		evt = va_arg(ap, int);
3821 		if (evt == ISPASYNC_CHANGE_PDB) {
3822 			nphdl = va_arg(ap, int);
3823 			nlstate = va_arg(ap, int);
3824 			reason = va_arg(ap, int);
3825 		} else if (evt == ISPASYNC_CHANGE_SNS) {
3826 			portid = va_arg(ap, int);
3827 		} else {
3828 			nphdl = NIL_HANDLE;
3829 			nlstate = reason = 0;
3830 		}
3831 		va_end(ap);
3832 		fc = ISP_FC_PC(isp, bus);
3833 
3834 		if (evt == ISPASYNC_CHANGE_PDB) {
3835 			msg = "Port Database Changed";
3836 			isp_prt(isp, ISP_LOGINFO,
3837 			    "Chan %d %s (nphdl 0x%x state 0x%x reason 0x%x)",
3838 			    bus, msg, nphdl, nlstate, reason);
3839 		} else if (evt == ISPASYNC_CHANGE_SNS) {
3840 			msg = "Name Server Database Changed";
3841 			isp_prt(isp, ISP_LOGINFO, "Chan %d %s (PortID 0x%06x)",
3842 			    bus, msg, portid);
3843 		} else {
3844 			msg = "Other Change Notify";
3845 			isp_prt(isp, ISP_LOGINFO, "Chan %d %s", bus, msg);
3846 		}
3847 		isp_loop_changed(isp, bus);
3848 		break;
3849 	}
3850 #ifdef	ISP_TARGET_MODE
3851 	case ISPASYNC_TARGET_NOTIFY:
3852 	{
3853 		isp_notify_t *notify;
3854 		va_start(ap, cmd);
3855 		notify = va_arg(ap, isp_notify_t *);
3856 		va_end(ap);
3857 		switch (notify->nt_ncode) {
3858 		case NT_ABORT_TASK:
3859 		case NT_ABORT_TASK_SET:
3860 		case NT_CLEAR_ACA:
3861 		case NT_CLEAR_TASK_SET:
3862 		case NT_LUN_RESET:
3863 		case NT_TARGET_RESET:
3864 		case NT_QUERY_TASK_SET:
3865 		case NT_QUERY_ASYNC_EVENT:
3866 			/*
3867 			 * These are task management functions.
3868 			 */
3869 			isp_handle_platform_target_tmf(isp, notify);
3870 			break;
3871 		case NT_BUS_RESET:
3872 		case NT_LIP_RESET:
3873 		case NT_LINK_UP:
3874 		case NT_LINK_DOWN:
3875 		case NT_HBA_RESET:
3876 			/*
3877 			 * No action need be taken here.
3878 			 */
3879 			break;
3880 		case NT_GLOBAL_LOGOUT:
3881 		case NT_LOGOUT:
3882 			/*
3883 			 * This is device arrival/departure notification
3884 			 */
3885 			isp_handle_platform_target_notify_ack(isp, notify, 0);
3886 			break;
3887 		case NT_SRR:
3888 			isp_handle_platform_srr(isp, notify);
3889 			break;
3890 		default:
3891 			isp_prt(isp, ISP_LOGALL, "target notify code 0x%x", notify->nt_ncode);
3892 			isp_handle_platform_target_notify_ack(isp, notify, 0);
3893 			break;
3894 		}
3895 		break;
3896 	}
3897 	case ISPASYNC_TARGET_NOTIFY_ACK:
3898 	{
3899 		void *inot;
3900 		va_start(ap, cmd);
3901 		inot = va_arg(ap, void *);
3902 		va_end(ap);
3903 		if (isp_notify_ack(isp, inot)) {
3904 			isp_tna_t *tp = malloc(sizeof (*tp), M_DEVBUF, M_NOWAIT);
3905 			if (tp) {
3906 				tp->isp = isp;
3907 				memcpy(tp->data, inot, sizeof (tp->data));
3908 				tp->not = tp->data;
3909 				callout_init_mtx(&tp->timer, &isp->isp_lock, 0);
3910 				callout_reset(&tp->timer, 5,
3911 				    isp_refire_notify_ack, tp);
3912 			} else {
3913 				isp_prt(isp, ISP_LOGERR, "you lose- cannot allocate a notify refire");
3914 			}
3915 		}
3916 		break;
3917 	}
3918 	case ISPASYNC_TARGET_ACTION:
3919 	{
3920 		isphdr_t *hp;
3921 
3922 		va_start(ap, cmd);
3923 		hp = va_arg(ap, isphdr_t *);
3924 		va_end(ap);
3925 		switch (hp->rqs_entry_type) {
3926 		case RQSTYPE_ATIO:
3927 			isp_handle_platform_atio7(isp, (at7_entry_t *) hp);
3928 			break;
3929 		case RQSTYPE_ATIO2:
3930 			isp_handle_platform_atio2(isp, (at2_entry_t *) hp);
3931 			break;
3932 		case RQSTYPE_CTIO7:
3933 		case RQSTYPE_CTIO3:
3934 		case RQSTYPE_CTIO2:
3935 		case RQSTYPE_CTIO:
3936 			isp_handle_platform_ctio(isp, hp);
3937 			break;
3938 		default:
3939 			isp_prt(isp, ISP_LOGWARN, "%s: unhandled target action 0x%x",
3940 			    __func__, hp->rqs_entry_type);
3941 			break;
3942 		}
3943 		break;
3944 	}
3945 #endif
3946 	case ISPASYNC_FW_CRASH:
3947 	{
3948 		uint16_t mbox1, mbox6;
3949 		mbox1 = ISP_READ(isp, OUTMAILBOX1);
3950 		if (IS_DUALBUS(isp)) {
3951 			mbox6 = ISP_READ(isp, OUTMAILBOX6);
3952 		} else {
3953 			mbox6 = 0;
3954 		}
3955 		isp_prt(isp, ISP_LOGERR, "Internal Firmware Error on bus %d @ RISC Address 0x%x", mbox6, mbox1);
3956 #if 0
3957 		mbox1 = isp->isp_osinfo.mbox_sleep_ok;
3958 		isp->isp_osinfo.mbox_sleep_ok = 0;
3959 		isp_reinit(isp, 1);
3960 		isp->isp_osinfo.mbox_sleep_ok = mbox1;
3961 		isp_async(isp, ISPASYNC_FW_RESTARTED, NULL);
3962 #endif
3963 		break;
3964 	}
3965 	default:
3966 		isp_prt(isp, ISP_LOGERR, "unknown isp_async event %d", cmd);
3967 		break;
3968 	}
3969 }
3970 
3971 uint64_t
3972 isp_default_wwn(ispsoftc_t * isp, int chan, int isactive, int iswwnn)
3973 {
3974 	uint64_t seed;
3975 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
3976 
3977 	/* First try to use explicitly configured WWNs. */
3978 	seed = iswwnn ? fc->def_wwnn : fc->def_wwpn;
3979 	if (seed)
3980 		return (seed);
3981 
3982 	/* Otherwise try to use WWNs from NVRAM. */
3983 	if (isactive) {
3984 		seed = iswwnn ? FCPARAM(isp, chan)->isp_wwnn_nvram :
3985 		    FCPARAM(isp, chan)->isp_wwpn_nvram;
3986 		if (seed)
3987 			return (seed);
3988 	}
3989 
3990 	/* If still no WWNs, try to steal them from the first channel. */
3991 	if (chan > 0) {
3992 		seed = iswwnn ? ISP_FC_PC(isp, 0)->def_wwnn :
3993 		    ISP_FC_PC(isp, 0)->def_wwpn;
3994 		if (seed == 0) {
3995 			seed = iswwnn ? FCPARAM(isp, 0)->isp_wwnn_nvram :
3996 			    FCPARAM(isp, 0)->isp_wwpn_nvram;
3997 		}
3998 	}
3999 
4000 	/* If still nothing -- improvise. */
4001 	if (seed == 0) {
4002 		seed = 0x400000007F000000ull + device_get_unit(isp->isp_dev);
4003 		if (!iswwnn)
4004 			seed ^= 0x0100000000000000ULL;
4005 	}
4006 
4007 	/* For additional channels we have to improvise even more. */
4008 	if (!iswwnn && chan > 0) {
4009 		/*
4010 		 * We'll stick our channel number plus one first into bits
4011 		 * 57..59 and thence into bits 52..55 which allows for 8 bits
4012 		 * of channel which is enough for our maximum of 255 channels.
4013 		 */
4014 		seed ^= 0x0100000000000000ULL;
4015 		seed ^= ((uint64_t) (chan + 1) & 0xf) << 56;
4016 		seed ^= ((uint64_t) ((chan + 1) >> 4) & 0xf) << 52;
4017 	}
4018 	return (seed);
4019 }
4020 
4021 void
4022 isp_prt(ispsoftc_t *isp, int level, const char *fmt, ...)
4023 {
4024 	int loc;
4025 	char lbuf[200];
4026 	va_list ap;
4027 
4028 	if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
4029 		return;
4030 	}
4031 	snprintf(lbuf, sizeof (lbuf), "%s: ", device_get_nameunit(isp->isp_dev));
4032 	loc = strlen(lbuf);
4033 	va_start(ap, fmt);
4034 	vsnprintf(&lbuf[loc], sizeof (lbuf) - loc - 1, fmt, ap);
4035 	va_end(ap);
4036 	printf("%s\n", lbuf);
4037 }
4038 
4039 void
4040 isp_xs_prt(ispsoftc_t *isp, XS_T *xs, int level, const char *fmt, ...)
4041 {
4042 	va_list ap;
4043 	if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
4044 		return;
4045 	}
4046 	xpt_print_path(xs->ccb_h.path);
4047 	va_start(ap, fmt);
4048 	vprintf(fmt, ap);
4049 	va_end(ap);
4050 	printf("\n");
4051 }
4052 
4053 uint64_t
4054 isp_nanotime_sub(struct timespec *b, struct timespec *a)
4055 {
4056 	uint64_t elapsed;
4057 	struct timespec x = *b;
4058 	timespecsub(&x, a);
4059 	elapsed = GET_NANOSEC(&x);
4060 	if (elapsed == 0)
4061 		elapsed++;
4062 	return (elapsed);
4063 }
4064 
4065 int
4066 isp_mbox_acquire(ispsoftc_t *isp)
4067 {
4068 	if (isp->isp_osinfo.mboxbsy) {
4069 		return (1);
4070 	} else {
4071 		isp->isp_osinfo.mboxcmd_done = 0;
4072 		isp->isp_osinfo.mboxbsy = 1;
4073 		return (0);
4074 	}
4075 }
4076 
4077 void
4078 isp_mbox_wait_complete(ispsoftc_t *isp, mbreg_t *mbp)
4079 {
4080 	u_int t, to;
4081 
4082 	to = (mbp->timeout == 0) ? MBCMD_DEFAULT_TIMEOUT : mbp->timeout;
4083 	if (isp->isp_osinfo.mbox_sleep_ok) {
4084 		isp->isp_osinfo.mbox_sleep_ok = 0;
4085 		isp->isp_osinfo.mbox_sleeping = 1;
4086 		msleep_sbt(&isp->isp_osinfo.mboxcmd_done, &isp->isp_osinfo.lock,
4087 		    PRIBIO, "ispmbx_sleep", to * SBT_1US, 0, 0);
4088 		isp->isp_osinfo.mbox_sleep_ok = 1;
4089 		isp->isp_osinfo.mbox_sleeping = 0;
4090 	} else {
4091 		for (t = 0; t < to; t += 100) {
4092 			if (isp->isp_osinfo.mboxcmd_done)
4093 				break;
4094 			ISP_RUN_ISR(isp);
4095 			if (isp->isp_osinfo.mboxcmd_done)
4096 				break;
4097 			ISP_DELAY(100);
4098 		}
4099 	}
4100 	if (isp->isp_osinfo.mboxcmd_done == 0) {
4101 		isp_prt(isp, ISP_LOGWARN, "%s Mailbox Command (0x%x) Timeout (%uus) (%s:%d)",
4102 		    isp->isp_osinfo.mbox_sleep_ok? "Interrupting" : "Polled",
4103 		    isp->isp_lastmbxcmd, to, mbp->func, mbp->lineno);
4104 		mbp->param[0] = MBOX_TIMEOUT;
4105 		isp->isp_osinfo.mboxcmd_done = 1;
4106 	}
4107 }
4108 
4109 void
4110 isp_mbox_notify_done(ispsoftc_t *isp)
4111 {
4112 	isp->isp_osinfo.mboxcmd_done = 1;
4113 	if (isp->isp_osinfo.mbox_sleeping)
4114 		wakeup(&isp->isp_osinfo.mboxcmd_done);
4115 }
4116 
4117 void
4118 isp_mbox_release(ispsoftc_t *isp)
4119 {
4120 	isp->isp_osinfo.mboxbsy = 0;
4121 }
4122 
4123 int
4124 isp_fc_scratch_acquire(ispsoftc_t *isp, int chan)
4125 {
4126 	int ret = 0;
4127 	if (isp->isp_osinfo.pc.fc[chan].fcbsy) {
4128 		ret = -1;
4129 	} else {
4130 		isp->isp_osinfo.pc.fc[chan].fcbsy = 1;
4131 	}
4132 	return (ret);
4133 }
4134 
4135 int
4136 isp_mstohz(int ms)
4137 {
4138 	int hz;
4139 	struct timeval t;
4140 	t.tv_sec = ms / 1000;
4141 	t.tv_usec = (ms % 1000) * 1000;
4142 	hz = tvtohz(&t);
4143 	if (hz < 0) {
4144 		hz = 0x7fffffff;
4145 	}
4146 	if (hz == 0) {
4147 		hz = 1;
4148 	}
4149 	return (hz);
4150 }
4151 
4152 void
4153 isp_platform_intr(void *arg)
4154 {
4155 	ispsoftc_t *isp = arg;
4156 
4157 	ISP_LOCK(isp);
4158 	ISP_RUN_ISR(isp);
4159 	ISP_UNLOCK(isp);
4160 }
4161 
4162 void
4163 isp_platform_intr_resp(void *arg)
4164 {
4165 	ispsoftc_t *isp = arg;
4166 
4167 	ISP_LOCK(isp);
4168 	isp_intr_respq(isp);
4169 	ISP_UNLOCK(isp);
4170 
4171 	/* We have handshake enabled, so explicitly complete interrupt */
4172 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
4173 }
4174 
4175 void
4176 isp_platform_intr_atio(void *arg)
4177 {
4178 	ispsoftc_t *isp = arg;
4179 
4180 	ISP_LOCK(isp);
4181 #ifdef	ISP_TARGET_MODE
4182 	isp_intr_atioq(isp);
4183 #endif
4184 	ISP_UNLOCK(isp);
4185 
4186 	/* We have handshake enabled, so explicitly complete interrupt */
4187 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
4188 }
4189 
4190 void
4191 isp_common_dmateardown(ispsoftc_t *isp, struct ccb_scsiio *csio, uint32_t hdl)
4192 {
4193 	if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4194 		bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTREAD);
4195 	} else {
4196 		bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTWRITE);
4197 	}
4198 	bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
4199 }
4200 
4201 /*
4202  * Reset the command reference number for all LUNs on a specific target
4203  * (needed when a target arrives again) or for all targets on a port
4204  * (needed for events like a LIP).
4205  */
4206 void
4207 isp_fcp_reset_crn(ispsoftc_t *isp, int chan, uint32_t tgt, int tgt_set)
4208 {
4209 	struct isp_fc *fc = ISP_FC_PC(isp, chan);
4210 	struct isp_nexus *nxp;
4211 	int i;
4212 
4213 	if (tgt_set == 0)
4214 		isp_prt(isp, ISP_LOGDEBUG0,
4215 		    "Chan %d resetting CRN on all targets", chan);
4216 	else
4217 		isp_prt(isp, ISP_LOGDEBUG0,
4218 		    "Chan %d resetting CRN on target %u", chan, tgt);
4219 
4220 	for (i = 0; i < NEXUS_HASH_WIDTH; i++) {
4221 		for (nxp = fc->nexus_hash[i]; nxp != NULL; nxp = nxp->next) {
4222 			if (tgt_set == 0 || tgt == nxp->tgt)
4223 				nxp->crnseed = 0;
4224 		}
4225 	}
4226 }
4227 
4228 int
4229 isp_fcp_next_crn(ispsoftc_t *isp, uint8_t *crnp, XS_T *cmd)
4230 {
4231 	lun_id_t lun;
4232 	uint32_t chan, tgt;
4233 	struct isp_fc *fc;
4234 	struct isp_nexus *nxp;
4235 	int idx;
4236 
4237 	if (IS_2100(isp))
4238 		return (0);
4239 
4240 	chan = XS_CHANNEL(cmd);
4241 	tgt = XS_TGT(cmd);
4242 	lun = XS_LUN(cmd);
4243 	fc = &isp->isp_osinfo.pc.fc[chan];
4244 	idx = NEXUS_HASH(tgt, lun);
4245 	nxp = fc->nexus_hash[idx];
4246 
4247 	while (nxp) {
4248 		if (nxp->tgt == tgt && nxp->lun == lun)
4249 			break;
4250 		nxp = nxp->next;
4251 	}
4252 	if (nxp == NULL) {
4253 		nxp = fc->nexus_free_list;
4254 		if (nxp == NULL) {
4255 			nxp = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_ZERO|M_NOWAIT);
4256 			if (nxp == NULL) {
4257 				return (-1);
4258 			}
4259 		} else {
4260 			fc->nexus_free_list = nxp->next;
4261 		}
4262 		nxp->tgt = tgt;
4263 		nxp->lun = lun;
4264 		nxp->next = fc->nexus_hash[idx];
4265 		fc->nexus_hash[idx] = nxp;
4266 	}
4267 	if (nxp->crnseed == 0)
4268 		nxp->crnseed = 1;
4269 	PISP_PCMD(cmd)->crn = nxp->crnseed;
4270 	*crnp = nxp->crnseed++;
4271 	return (0);
4272 }
4273 
4274 /*
4275  * We enter with the lock held
4276  */
4277 void
4278 isp_timer(void *arg)
4279 {
4280 	ispsoftc_t *isp = arg;
4281 #ifdef	ISP_TARGET_MODE
4282 	isp_tmcmd_restart(isp);
4283 #endif
4284 	callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
4285 }
4286 
4287 isp_ecmd_t *
4288 isp_get_ecmd(ispsoftc_t *isp)
4289 {
4290 	isp_ecmd_t *ecmd = isp->isp_osinfo.ecmd_free;
4291 	if (ecmd) {
4292 		isp->isp_osinfo.ecmd_free = ecmd->next;
4293 	}
4294 	return (ecmd);
4295 }
4296 
4297 void
4298 isp_put_ecmd(ispsoftc_t *isp, isp_ecmd_t *ecmd)
4299 {
4300 	ecmd->next = isp->isp_osinfo.ecmd_free;
4301 	isp->isp_osinfo.ecmd_free = ecmd;
4302 }
4303