xref: /freebsd/sys/dev/isp/isp_target.c (revision b0b1dbdd)
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  *
9  *  1. Redistributions of source code must retain the above copyright
10  *     notice, this list of conditions and the following disclaimer.
11  *  2. Redistributions in binary form must reproduce the above copyright
12  *     notice, this list of conditions and the following disclaimer in the
13  *     documentation and/or other materials provided with the distribution.
14  *
15  *  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  *  ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  *  SUCH DAMAGE.
26  *
27  */
28 /*
29  * Machine and OS Independent Target Mode Code for the Qlogic SCSI/FC adapters.
30  */
31 /*
32  * Bug fixes gratefully acknowledged from:
33  *	Oded Kedem <oded@kashya.com>
34  */
35 /*
36  * Include header file appropriate for platform we're building on.
37  */
38 
39 #ifdef	__NetBSD__
40 #include <dev/ic/isp_netbsd.h>
41 #endif
42 #ifdef	__FreeBSD__
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
45 #include <dev/isp/isp_freebsd.h>
46 #endif
47 #ifdef	__OpenBSD__
48 #include <dev/ic/isp_openbsd.h>
49 #endif
50 #ifdef	__linux__
51 #include "isp_linux.h"
52 #endif
53 
54 #ifdef	ISP_TARGET_MODE
55 static const char atiocope[] = "ATIO returned for LUN %x because it was in the middle of Bus Device Reset on bus %d";
56 static const char atior[] = "ATIO returned for LUN %x from handle 0x%x because a Bus Reset occurred on bus %d";
57 static const char rqo[] = "%s: Request Queue Overflow";
58 
59 static void isp_got_msg_fc(ispsoftc_t *, in_fcentry_t *);
60 static void isp_got_tmf_24xx(ispsoftc_t *, at7_entry_t *);
61 static void isp_handle_atio2(ispsoftc_t *, at2_entry_t *);
62 static void isp_handle_ctio2(ispsoftc_t *, ct2_entry_t *);
63 static void isp_handle_ctio7(ispsoftc_t *, ct7_entry_t *);
64 static void isp_handle_24xx_inotify(ispsoftc_t *, in_fcentry_24xx_t *);
65 
66 /*
67  * The Qlogic driver gets an interrupt to look at response queue entries.
68  * Some of these are status completions for initiatior mode commands, but
69  * if target mode is enabled, we get a whole wad of response queue entries
70  * to be handled here.
71  *
72  * Basically the split into 3 main groups: Lun Enable/Modification responses,
73  * SCSI Command processing, and Immediate Notification events.
74  *
75  * You start by writing a request queue entry to enable target mode (and
76  * establish some resource limitations which you can modify later).
77  * The f/w responds with a LUN ENABLE or LUN MODIFY response with
78  * the status of this action. If the enable was successful, you can expect...
79  *
80  * Response queue entries with SCSI commands encapsulate show up in an ATIO
81  * (Accept Target IO) type- sometimes with enough info to stop the command at
82  * this level. Ultimately the driver has to feed back to the f/w's request
83  * queue a sequence of CTIOs (continue target I/O) that describe data to
84  * be moved and/or status to be sent) and finally finishing with sending
85  * to the f/w's response queue an ATIO which then completes the handshake
86  * with the f/w for that command. There's a lot of variations on this theme,
87  * including flags you can set in the CTIO for the Qlogic 2X00 fibre channel
88  * cards that 'auto-replenish' the f/w's ATIO count, but this is the basic
89  * gist of it.
90  *
91  * The third group that can show up in the response queue are Immediate
92  * Notification events. These include things like notifications of SCSI bus
93  * resets, or Bus Device Reset messages or other messages received. This
94  * a classic oddbins area. It can get  a little weird because you then turn
95  * around and acknowledge the Immediate Notify by writing an entry onto the
96  * request queue and then the f/w turns around and gives you an acknowledgement
97  * to *your* acknowledgement on the response queue (the idea being to let
98  * the f/w tell you when the event is *really* over I guess).
99  *
100  */
101 
102 
103 /*
104  * A new response queue entry has arrived. The interrupt service code
105  * has already swizzled it into the platform dependent from canonical form.
106  *
107  * Because of the way this driver is designed, unfortunately most of the
108  * actual synchronization work has to be done in the platform specific
109  * code- we have no synchroniation primitives in the common code.
110  */
111 
112 int
113 isp_target_notify(ispsoftc_t *isp, void *vptr, uint32_t *optrp)
114 {
115 	uint16_t status;
116 	uint32_t seqid;
117 	union {
118 		at2_entry_t	*at2iop;
119 		at2e_entry_t	*at2eiop;
120 		at7_entry_t	*at7iop;
121 		ct2_entry_t	*ct2iop;
122 		ct2e_entry_t	*ct2eiop;
123 		ct7_entry_t	*ct7iop;
124 		lun_entry_t	*lunenp;
125 		in_fcentry_t	*inot_fcp;
126 		in_fcentry_e_t	*inote_fcp;
127 		in_fcentry_24xx_t *inot_24xx;
128 		na_fcentry_t	*nack_fcp;
129 		na_fcentry_e_t	*nacke_fcp;
130 		na_fcentry_24xx_t *nack_24xx;
131 		isphdr_t	*hp;
132 		abts_t		*abts;
133 		abts_rsp_t	*abts_rsp;
134 		els_t		*els;
135 		void *		*vp;
136 #define	at2iop		unp.at2iop
137 #define	at2eiop		unp.at2eiop
138 #define	at7iop		unp.at7iop
139 #define	ct2iop		unp.ct2iop
140 #define	ct2eiop		unp.ct2eiop
141 #define	ct7iop		unp.ct7iop
142 #define	lunenp		unp.lunenp
143 #define	inot_fcp	unp.inot_fcp
144 #define	inote_fcp	unp.inote_fcp
145 #define	inot_24xx	unp.inot_24xx
146 #define	nack_fcp	unp.nack_fcp
147 #define	nacke_fcp	unp.nacke_fcp
148 #define	nack_24xx	unp.nack_24xx
149 #define	abts		unp.abts
150 #define	abts_rsp	unp.abts_rsp
151 #define els		unp.els
152 #define	hdrp		unp.hp
153 	} unp;
154 	uint8_t local[QENTRY_LEN];
155 	uint16_t iid;
156 	int bus, type, len, level, rval = 1;
157 	isp_notify_t notify;
158 
159 	type = isp_get_response_type(isp, (isphdr_t *)vptr);
160 	unp.vp = vptr;
161 
162 	ISP_TDQE(isp, "isp_target_notify", (int) *optrp, vptr);
163 
164 	switch (type) {
165 	case RQSTYPE_ATIO:
166 		isp_get_atio7(isp, at7iop, (at7_entry_t *) local);
167 		at7iop = (at7_entry_t *) local;
168 		/*
169 		 * Check for and do something with commands whose
170 		 * IULEN extends past a single queue entry.
171 		 */
172 		len = at7iop->at_ta_len & 0x0fff;
173 		if (len > (QENTRY_LEN - 8)) {
174 			len -= (QENTRY_LEN - 8);
175 			isp_prt(isp, ISP_LOGINFO, "long IU length (%d) ignored", len);
176 			while (len > 0) {
177 				*optrp =  ISP_NXT_QENTRY(*optrp, RESULT_QUEUE_LEN(isp));
178 				len -= QENTRY_LEN;
179 			}
180 		}
181 		/*
182 		 * Check for a task management function
183 		 */
184 		if (at7iop->at_cmnd.fcp_cmnd_task_management) {
185 			isp_got_tmf_24xx(isp, at7iop);
186 			break;
187 		}
188 		/*
189 		 * Just go straight to outer layer for this one.
190 		 */
191 		isp_async(isp, ISPASYNC_TARGET_ACTION, local);
192 		break;
193 
194 	case RQSTYPE_ATIO2:
195 		if (ISP_CAP_2KLOGIN(isp)) {
196 			isp_get_atio2e(isp, at2eiop, (at2e_entry_t *) local);
197 		} else {
198 			isp_get_atio2(isp, at2iop, (at2_entry_t *) local);
199 		}
200 		isp_handle_atio2(isp, (at2_entry_t *) local);
201 		break;
202 
203 	case RQSTYPE_CTIO3:
204 	case RQSTYPE_CTIO2:
205 		if (ISP_CAP_2KLOGIN(isp)) {
206 			isp_get_ctio2e(isp, ct2eiop, (ct2e_entry_t *) local);
207 		} else {
208 			isp_get_ctio2(isp, ct2iop, (ct2_entry_t *) local);
209 		}
210 		isp_handle_ctio2(isp, (ct2_entry_t *) local);
211 		break;
212 
213 	case RQSTYPE_CTIO7:
214 		isp_get_ctio7(isp, ct7iop, (ct7_entry_t *) local);
215 		isp_handle_ctio7(isp, (ct7_entry_t *) local);
216 		break;
217 
218 	case RQSTYPE_ENABLE_LUN:
219 	case RQSTYPE_MODIFY_LUN:
220 		isp_get_enable_lun(isp, lunenp, (lun_entry_t *) local);
221 		isp_async(isp, ISPASYNC_TARGET_ACTION, local);
222 		break;
223 
224 	case RQSTYPE_NOTIFY:
225 		bus = 0;
226 		if (IS_24XX(isp)) {
227 			isp_get_notify_24xx(isp, inot_24xx, (in_fcentry_24xx_t *)local);
228 			inot_24xx = (in_fcentry_24xx_t *) local;
229 			isp_handle_24xx_inotify(isp, inot_24xx);
230 			break;
231 		} else {
232 			if (ISP_CAP_2KLOGIN(isp)) {
233 				in_fcentry_e_t *ecp = (in_fcentry_e_t *)local;
234 				isp_get_notify_fc_e(isp, inote_fcp, ecp);
235 				iid = ecp->in_iid;
236 				status = ecp->in_status;
237 				seqid = ecp->in_seqid;
238 			} else {
239 				in_fcentry_t *fcp = (in_fcentry_t *)local;
240 				isp_get_notify_fc(isp, inot_fcp, fcp);
241 				iid = fcp->in_iid;
242 				status = fcp->in_status;
243 				seqid = fcp->in_seqid;
244 			}
245 		}
246 
247 		isp_prt(isp, ISP_LOGTDEBUG0, "Immediate Notify On Bus %d, status=0x%x seqid=0x%x", bus, status, seqid);
248 
249 		switch (status) {
250 		case IN_MSG_RECEIVED:
251 		case IN_IDE_RECEIVED:
252 			isp_got_msg_fc(isp, (in_fcentry_t *)local);
253 			break;
254 		case IN_RSRC_UNAVAIL:
255 			isp_prt(isp, ISP_LOGINFO, "Firmware out of ATIOs");
256 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, local);
257 			break;
258 
259 		case IN_RESET:
260 			ISP_MEMZERO(&notify, sizeof (isp_notify_t));
261 			notify.nt_hba = isp;
262 			notify.nt_wwn = INI_ANY;
263 			notify.nt_tgt = TGT_ANY;
264 			notify.nt_nphdl = iid;
265 			notify.nt_sid = PORT_ANY;
266 			notify.nt_did = PORT_ANY;
267 			notify.nt_lun = LUN_ANY;
268 			notify.nt_tagval = TAG_ANY;
269 			notify.nt_tagval |= (((uint64_t)(isp->isp_serno++)) << 32);
270 			notify.nt_ncode = NT_BUS_RESET;
271 			notify.nt_need_ack = 1;
272 			notify.nt_lreserved = local;
273 			isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
274 			break;
275 
276 		case IN_PORT_LOGOUT:
277 			ISP_MEMZERO(&notify, sizeof (isp_notify_t));
278 			notify.nt_hba = isp;
279 			notify.nt_wwn = INI_ANY;
280 			notify.nt_nphdl = iid;
281 			notify.nt_sid = PORT_ANY;
282 			notify.nt_did = PORT_ANY;
283 			notify.nt_ncode = NT_LOGOUT;
284 			notify.nt_need_ack = 1;
285 			notify.nt_lreserved = local;
286 			isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
287 			break;
288 
289 		case IN_ABORT_TASK:
290 			ISP_MEMZERO(&notify, sizeof (isp_notify_t));
291 			notify.nt_hba = isp;
292 			notify.nt_wwn = INI_ANY;
293 			notify.nt_nphdl = iid;
294 			notify.nt_sid = PORT_ANY;
295 			notify.nt_did = PORT_ANY;
296 			notify.nt_ncode = NT_ABORT_TASK;
297 			notify.nt_need_ack = 1;
298 			notify.nt_lreserved = local;
299 			isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
300 			break;
301 
302 		case IN_GLOBAL_LOGO:
303 			isp_prt(isp, ISP_LOGTINFO, "%s: all ports logged out", __func__);
304 			ISP_MEMZERO(&notify, sizeof (isp_notify_t));
305 			notify.nt_hba = isp;
306 			notify.nt_wwn = INI_ANY;
307 			notify.nt_nphdl = NIL_HANDLE;
308 			notify.nt_sid = PORT_ANY;
309 			notify.nt_did = PORT_ANY;
310 			notify.nt_ncode = NT_GLOBAL_LOGOUT;
311 			notify.nt_need_ack = 1;
312 			notify.nt_lreserved = local;
313 			isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
314 			break;
315 
316 		case IN_PORT_CHANGED:
317 			isp_prt(isp, ISP_LOGTINFO, "%s: port changed", __func__);
318 			ISP_MEMZERO(&notify, sizeof (isp_notify_t));
319 			notify.nt_hba = isp;
320 			notify.nt_wwn = INI_ANY;
321 			notify.nt_nphdl = NIL_HANDLE;
322 			notify.nt_sid = PORT_ANY;
323 			notify.nt_did = PORT_ANY;
324 			notify.nt_ncode = NT_CHANGED;
325 			notify.nt_need_ack = 1;
326 			notify.nt_lreserved = local;
327 			isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
328 			break;
329 
330 		default:
331 			ISP_SNPRINTF(local, sizeof local, "%s: unknown status to RQSTYPE_NOTIFY (0x%x)", __func__, status);
332 			isp_print_bytes(isp, local, QENTRY_LEN, vptr);
333 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, local);
334 			break;
335 		}
336 		break;
337 
338 	case RQSTYPE_NOTIFY_ACK:
339 		/*
340 		 * The ISP is acknowledging our acknowledgement of an
341 		 * Immediate Notify entry for some asynchronous event.
342 		 */
343 		if (IS_24XX(isp)) {
344 			isp_get_notify_ack_24xx(isp, nack_24xx, (na_fcentry_24xx_t *) local);
345 			nack_24xx = (na_fcentry_24xx_t *) local;
346 			if (nack_24xx->na_status != NA_OK) {
347 				level = ISP_LOGINFO;
348 			} else {
349 				level = ISP_LOGTDEBUG1;
350 			}
351 			isp_prt(isp, level, "Notify Ack Status=0x%x; Subcode 0x%x seqid=0x%x", nack_24xx->na_status, nack_24xx->na_status_subcode, nack_24xx->na_rxid);
352 		} else {
353 			if (ISP_CAP_2KLOGIN(isp)) {
354 				isp_get_notify_ack_fc_e(isp, nacke_fcp, (na_fcentry_e_t *)local);
355 			} else {
356 				isp_get_notify_ack_fc(isp, nack_fcp, (na_fcentry_t *)local);
357 			}
358 			nack_fcp = (na_fcentry_t *)local;
359 			if (nack_fcp->na_status != NA_OK) {
360 				level = ISP_LOGINFO;
361 			} else {
362 				level = ISP_LOGTDEBUG1;
363 			}
364 			isp_prt(isp, level, "Notify Ack Status=0x%x seqid 0x%x", nack_fcp->na_status, nack_fcp->na_seqid);
365 		}
366 		break;
367 
368 	case RQSTYPE_ABTS_RCVD:
369 		isp_get_abts(isp, abts, (abts_t *)local);
370 		isp_async(isp, ISPASYNC_TARGET_ACTION, &local);
371 		break;
372 	case RQSTYPE_ABTS_RSP:
373 		isp_get_abts_rsp(isp, abts_rsp, (abts_rsp_t *)local);
374 		abts_rsp = (abts_rsp_t *) local;
375 		if (abts_rsp->abts_rsp_status) {
376 			level = ISP_LOGINFO;
377 		} else {
378 			level = ISP_LOGTDEBUG0;
379 		}
380 		isp_prt(isp, level, "ABTS RSP response[0x%x]: status=0x%x sub=(0x%x 0x%x)", abts_rsp->abts_rsp_rxid_task, abts_rsp->abts_rsp_status,
381 		    abts_rsp->abts_rsp_payload.rsp.subcode1, abts_rsp->abts_rsp_payload.rsp.subcode2);
382 		break;
383 	default:
384 		isp_prt(isp, ISP_LOGERR, "%s: unknown entry type 0x%x", __func__, type);
385 		rval = 0;
386 		break;
387 	}
388 #undef	atiop
389 #undef	at2iop
390 #undef	at2eiop
391 #undef	at7iop
392 #undef	ctiop
393 #undef	ct2iop
394 #undef	ct2eiop
395 #undef	ct7iop
396 #undef	lunenp
397 #undef	inotp
398 #undef	inot_fcp
399 #undef	inote_fcp
400 #undef	inot_24xx
401 #undef	nackp
402 #undef	nack_fcp
403 #undef	nacke_fcp
404 #undef	hack_24xx
405 #undef	abts
406 #undef	abts_rsp
407 #undef	els
408 #undef	hdrp
409 	return (rval);
410 }
411 
412 int
413 isp_target_put_entry(ispsoftc_t *isp, void *ap)
414 {
415 	void *outp;
416 	uint8_t etype = ((isphdr_t *) ap)->rqs_entry_type;
417 
418 	outp = isp_getrqentry(isp);
419 	if (outp == NULL) {
420 		isp_prt(isp, ISP_LOGWARN, rqo, __func__);
421 		return (-1);
422 	}
423 	switch (etype) {
424 	case RQSTYPE_ATIO2:
425 		if (ISP_CAP_2KLOGIN(isp)) {
426 			isp_put_atio2e(isp, (at2e_entry_t *) ap, (at2e_entry_t *) outp);
427 		} else {
428 			isp_put_atio2(isp, (at2_entry_t *) ap, (at2_entry_t *) outp);
429 		}
430 		break;
431 	case RQSTYPE_CTIO2:
432 		if (ISP_CAP_2KLOGIN(isp)) {
433 			isp_put_ctio2e(isp, (ct2e_entry_t *) ap, (ct2e_entry_t *) outp);
434 		} else {
435 			isp_put_ctio2(isp, (ct2_entry_t *) ap, (ct2_entry_t *) outp);
436 		}
437 		break;
438 	case RQSTYPE_CTIO7:
439 		isp_put_ctio7(isp, (ct7_entry_t *) ap, (ct7_entry_t *) outp);
440 		break;
441 	default:
442 		isp_prt(isp, ISP_LOGERR, "%s: Unknown type 0x%x", __func__, etype);
443 		return (-1);
444 	}
445 	ISP_TDQE(isp, __func__, isp->isp_reqidx, ap);
446 	ISP_SYNC_REQUEST(isp);
447 	return (0);
448 }
449 
450 int
451 isp_target_put_atio(ispsoftc_t *isp, void *arg)
452 {
453 	at2_entry_t *aep = arg;
454 	union {
455 		at2_entry_t _atio2;
456 		at2e_entry_t _atio2e;
457 	} atun;
458 
459 	ISP_MEMZERO(&atun, sizeof atun);
460 	atun._atio2.at_header.rqs_entry_type = RQSTYPE_ATIO2;
461 	atun._atio2.at_header.rqs_entry_count = 1;
462 	if (ISP_CAP_SCCFW(isp)) {
463 		atun._atio2.at_scclun = aep->at_scclun;
464 	} else {
465 		atun._atio2.at_lun = (uint8_t) aep->at_lun;
466 	}
467 	if (ISP_CAP_2KLOGIN(isp)) {
468 		atun._atio2e.at_iid = ((at2e_entry_t *)aep)->at_iid;
469 	} else {
470 		atun._atio2.at_iid = aep->at_iid;
471 	}
472 	atun._atio2.at_rxid = aep->at_rxid;
473 	atun._atio2.at_status = CT_OK;
474 	return (isp_target_put_entry(isp, &atun));
475 }
476 
477 /*
478  * Command completion- both for handling cases of no resources or
479  * no blackhole driver, or other cases where we have to, inline,
480  * finish the command sanely, or for normal command completion.
481  *
482  * The 'completion' code value has the scsi status byte in the low 8 bits.
483  * If status is a CHECK CONDITION and bit 8 is nonzero, then bits 12..15 have
484  * the sense key and  bits 16..23 have the ASCQ and bits 24..31 have the ASC
485  * values.
486  *
487  * NB: the key, asc, ascq, cannot be used for parallel SCSI as it doesn't
488  * NB: inline SCSI sense reporting. As such, we lose this information. XXX.
489  *
490  * For both parallel && fibre channel, we use the feature that does
491  * an automatic resource autoreplenish so we don't have then later do
492  * put of an atio to replenish the f/w's resource count.
493  */
494 
495 int
496 isp_endcmd(ispsoftc_t *isp, ...)
497 {
498 	uint32_t code, hdl;
499 	uint8_t sts;
500 	union {
501 		ct2_entry_t _ctio2;
502 		ct2e_entry_t _ctio2e;
503 		ct7_entry_t _ctio7;
504 	} un;
505 	va_list ap;
506 	int vpidx, nphdl;
507 
508 	ISP_MEMZERO(&un, sizeof un);
509 
510 	if (IS_24XX(isp)) {
511 		at7_entry_t *aep;
512 		ct7_entry_t *cto = &un._ctio7;
513 
514 		va_start(ap, isp);
515 		aep = va_arg(ap, at7_entry_t *);
516 		nphdl = va_arg(ap, int);
517 		/*
518 		 * Note that vpidx may equal 0xff (unknown) here
519 		 */
520 		vpidx = va_arg(ap, int);
521 		code = va_arg(ap, uint32_t);
522 		hdl = va_arg(ap, uint32_t);
523 		va_end(ap);
524 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: [RX_ID 0x%x] chan %d code %x", __func__, aep->at_rxid, vpidx, code);
525 
526 		sts = code & 0xff;
527 		cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
528 		cto->ct_header.rqs_entry_count = 1;
529 		cto->ct_nphdl = nphdl;
530 		cto->ct_rxid = aep->at_rxid;
531 		cto->ct_iid_lo = (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
532 		cto->ct_iid_hi = aep->at_hdr.s_id[0];
533 		cto->ct_oxid = aep->at_hdr.ox_id;
534 		cto->ct_scsi_status = sts;
535 		cto->ct_vpidx = vpidx;
536 		cto->ct_flags = CT7_NOACK;
537 		if (code & ECMD_TERMINATE) {
538 			cto->ct_flags |= CT7_TERMINATE;
539 		} else if (code & ECMD_SVALID) {
540 			cto->ct_flags |= CT7_FLAG_MODE1 | CT7_SENDSTATUS;
541 			cto->ct_scsi_status |= (FCP_SNSLEN_VALID << 8);
542 			cto->ct_senselen = min(16, MAXRESPLEN_24XX);
543 			ISP_MEMZERO(cto->rsp.m1.ct_resp, sizeof (cto->rsp.m1.ct_resp));
544 			cto->rsp.m1.ct_resp[0] = 0xf0;
545 			cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf;
546 			cto->rsp.m1.ct_resp[7] = 8;
547 			cto->rsp.m1.ct_resp[12] = (code >> 16) & 0xff;
548 			cto->rsp.m1.ct_resp[13] = (code >> 24) & 0xff;
549 		} else if (code & ECMD_RVALID) {
550 			cto->ct_flags |= CT7_FLAG_MODE1 | CT7_SENDSTATUS;
551 			cto->ct_scsi_status |= (FCP_RSPLEN_VALID << 8);
552 			cto->rsp.m1.ct_resplen = 4;
553 			ISP_MEMZERO(cto->rsp.m1.ct_resp, sizeof (cto->rsp.m1.ct_resp));
554 			cto->rsp.m1.ct_resp[0] = (code >> 12) & 0xf;
555 			cto->rsp.m1.ct_resp[1] = (code >> 16) & 0xff;
556 			cto->rsp.m1.ct_resp[2] = (code >> 24) & 0xff;
557 			cto->rsp.m1.ct_resp[3] = 0;
558 		} else {
559 			cto->ct_flags |= CT7_FLAG_MODE1 | CT7_SENDSTATUS;
560 		}
561 		if (aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl != 0) {
562 			cto->ct_resid = aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl;
563 			cto->ct_scsi_status |= (FCP_RESID_UNDERFLOW << 8);
564 		}
565 		cto->ct_syshandle = hdl;
566 	} else {
567 		at2_entry_t *aep;
568 		ct2_entry_t *cto = &un._ctio2;
569 
570 		va_start(ap, isp);
571 		aep = va_arg(ap, at2_entry_t *);
572 		/* nphdl and vpidx are unused here. */
573 		nphdl = va_arg(ap, int);
574 		vpidx = va_arg(ap, int);
575 		code = va_arg(ap, uint32_t);
576 		hdl = va_arg(ap, uint32_t);
577 		va_end(ap);
578 
579 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: [RX_ID 0x%x] code %x", __func__, aep->at_rxid, code);
580 
581 		sts = code & 0xff;
582 		cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
583 		cto->ct_header.rqs_entry_count = 1;
584 		if (ISP_CAP_SCCFW(isp) == 0) {
585 			cto->ct_lun = aep->at_lun;
586 		}
587 		if (ISP_CAP_2KLOGIN(isp)) {
588 			un._ctio2e.ct_iid = ((at2e_entry_t *)aep)->at_iid;
589 		} else {
590 			cto->ct_iid = aep->at_iid;
591 		}
592 		cto->ct_rxid = aep->at_rxid;
593 		cto->rsp.m1.ct_scsi_status = sts;
594 		cto->ct_flags = CT2_SENDSTATUS | CT2_NO_DATA | CT2_FLAG_MODE1;
595 		if (hdl == 0) {
596 			cto->ct_flags |= CT2_CCINCR;
597 		}
598 		if (aep->at_datalen) {
599 			cto->ct_resid = aep->at_datalen;
600 			cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
601 		}
602 		if (sts == SCSI_CHECK && (code & ECMD_SVALID)) {
603 			cto->rsp.m1.ct_resp[0] = 0xf0;
604 			cto->rsp.m1.ct_resp[2] = (code >> 12) & 0xf;
605 			cto->rsp.m1.ct_resp[7] = 8;
606 			cto->rsp.m1.ct_resp[12] = (code >> 24) & 0xff;
607 			cto->rsp.m1.ct_resp[13] = (code >> 16) & 0xff;
608 			cto->rsp.m1.ct_senselen = 16;
609 			cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
610 		}
611 		cto->ct_syshandle = hdl;
612 	}
613 	return (isp_target_put_entry(isp, &un));
614 }
615 
616 /*
617  * These are either broadcast events or specifically CTIO fast completion
618  */
619 
620 void
621 isp_target_async(ispsoftc_t *isp, int bus, int event)
622 {
623 	isp_notify_t notify;
624 
625 	ISP_MEMZERO(&notify, sizeof (isp_notify_t));
626 	notify.nt_hba = isp;
627 	notify.nt_wwn = INI_ANY;
628 	notify.nt_nphdl = NIL_HANDLE;
629 	notify.nt_sid = PORT_ANY;
630 	notify.nt_did = PORT_ANY;
631 	notify.nt_tgt = TGT_ANY;
632 	notify.nt_channel = bus;
633 	notify.nt_lun = LUN_ANY;
634 	notify.nt_tagval = TAG_ANY;
635 	notify.nt_tagval |= (((uint64_t)(isp->isp_serno++)) << 32);
636 
637 	switch (event) {
638 	case ASYNC_LOOP_UP:
639 	case ASYNC_PTPMODE:
640 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: LOOP UP", __func__);
641 		notify.nt_ncode = NT_LINK_UP;
642 		isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
643 		break;
644 	case ASYNC_LOOP_DOWN:
645 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: LOOP DOWN", __func__);
646 		notify.nt_ncode = NT_LINK_DOWN;
647 		isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
648 		break;
649 	case ASYNC_LIP_ERROR:
650 	case ASYNC_LIP_NOS_OLS_RECV:
651 	case ASYNC_LIP_OCCURRED:
652 	case ASYNC_LOOP_RESET:
653 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: LIP RESET", __func__);
654 		notify.nt_ncode = NT_LIP_RESET;
655 		isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
656 		break;
657 	case ASYNC_BUS_RESET:
658 	case ASYNC_TIMEOUT_RESET:	/* XXX: where does this come from ? */
659 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: BUS RESET", __func__);
660 		notify.nt_ncode = NT_BUS_RESET;
661 		isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
662 		break;
663 	case ASYNC_DEVICE_RESET:
664 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: DEVICE RESET", __func__);
665 		notify.nt_ncode = NT_TARGET_RESET;
666 		isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
667 		break;
668 	case ASYNC_CTIO_DONE:
669 	{
670 		uint8_t storage[QENTRY_LEN];
671 		isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO DONE", __func__);
672 		memset(storage, 0, QENTRY_LEN);
673 		if (IS_24XX(isp)) {
674 			ct7_entry_t *ct = (ct7_entry_t *) storage;
675 			ct->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
676 			ct->ct_nphdl = CT7_OK;
677 			ct->ct_syshandle = bus;
678 			ct->ct_flags = CT7_SENDSTATUS;
679 		} else {
680             		/* This should also suffice for 2K login code */
681 			ct2_entry_t *ct = (ct2_entry_t *) storage;
682 			ct->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
683 			ct->ct_status = CT_OK;
684 			ct->ct_syshandle = bus;
685 			ct->ct_flags = CT2_SENDSTATUS|CT2_FASTPOST;
686 		}
687 		isp_async(isp, ISPASYNC_TARGET_ACTION, storage);
688 		break;
689 	}
690 	default:
691 		isp_prt(isp, ISP_LOGERR, "%s: unknown event 0x%x", __func__, event);
692 		if (isp->isp_state == ISP_RUNSTATE) {
693 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, NULL);
694 		}
695 		break;
696 	}
697 }
698 
699 /*
700  * Synthesize a message from the task management flags in a FCP_CMND_IU.
701  */
702 static void
703 isp_got_msg_fc(ispsoftc_t *isp, in_fcentry_t *inp)
704 {
705 	isp_notify_t notify;
706 	static const char f1[] = "%s from N-port handle 0x%x lun %x seq 0x%x";
707 	static const char f2[] = "unknown %s 0x%x lun %x N-Port handle 0x%x task flags 0x%x seq 0x%x\n";
708 	uint16_t seqid, nphdl;
709 
710 	ISP_MEMZERO(&notify, sizeof (isp_notify_t));
711 	notify.nt_hba = isp;
712 	notify.nt_wwn = INI_ANY;
713 	if (ISP_CAP_2KLOGIN(isp)) {
714 		notify.nt_nphdl = ((in_fcentry_e_t *)inp)->in_iid;
715 		nphdl = ((in_fcentry_e_t *)inp)->in_iid;
716 		seqid = ((in_fcentry_e_t *)inp)->in_seqid;
717 	} else {
718 		notify.nt_nphdl = inp->in_iid;
719 		nphdl = inp->in_iid;
720 		seqid = inp->in_seqid;
721 	}
722 	notify.nt_sid = PORT_ANY;
723 	notify.nt_did = PORT_ANY;
724 
725 	/* nt_tgt set in outer layers */
726 	if (ISP_CAP_SCCFW(isp)) {
727 		notify.nt_lun = inp->in_scclun;
728 	} else {
729 		notify.nt_lun = inp->in_lun;
730 	}
731 	notify.nt_tagval = seqid;
732 	notify.nt_tagval |= (((uint64_t)(isp->isp_serno++)) << 32);
733 	notify.nt_need_ack = 1;
734 	notify.nt_lreserved = inp;
735 
736 	if (inp->in_status != IN_MSG_RECEIVED) {
737 		isp_prt(isp, ISP_LOGINFO, f2, "immediate notify status", inp->in_status, notify.nt_lun, nphdl, inp->in_task_flags, inp->in_seqid);
738 		isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inp);
739 		return;
740 	}
741 
742 	if (inp->in_task_flags & TASK_FLAGS_ABORT_TASK_SET) {
743 		isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK SET", nphdl, notify.nt_lun, inp->in_seqid);
744 		notify.nt_ncode = NT_ABORT_TASK_SET;
745 	} else if (inp->in_task_flags & TASK_FLAGS_CLEAR_TASK_SET) {
746 		isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", nphdl, notify.nt_lun, inp->in_seqid);
747 		notify.nt_ncode = NT_CLEAR_TASK_SET;
748 	} else if (inp->in_task_flags & TASK_FLAGS_LUN_RESET) {
749 		isp_prt(isp, ISP_LOGINFO, f1, "LUN RESET", nphdl, notify.nt_lun, inp->in_seqid);
750 		notify.nt_ncode = NT_LUN_RESET;
751 	} else if (inp->in_task_flags & TASK_FLAGS_TARGET_RESET) {
752 		isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", nphdl, notify.nt_lun, inp->in_seqid);
753 		notify.nt_ncode = NT_TARGET_RESET;
754 	} else if (inp->in_task_flags & TASK_FLAGS_CLEAR_ACA) {
755 		isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", nphdl, notify.nt_lun, inp->in_seqid);
756 		notify.nt_ncode = NT_CLEAR_ACA;
757 	} else {
758 		isp_prt(isp, ISP_LOGWARN, f2, "task flag", inp->in_status, notify.nt_lun, nphdl, inp->in_task_flags,  inp->in_seqid);
759 		isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inp);
760 		return;
761 	}
762 	isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
763 }
764 
765 static void
766 isp_got_tmf_24xx(ispsoftc_t *isp, at7_entry_t *aep)
767 {
768 	isp_notify_t notify;
769 	static const char f1[] = "%s from PortID 0x%06x lun %x seq 0x%08x";
770 	static const char f2[] = "unknown Task Flag 0x%x lun %x PortID 0x%x tag 0x%08x";
771 	fcportdb_t *lp;
772 	uint16_t chan;
773 	uint32_t sid, did;
774 
775 	ISP_MEMZERO(&notify, sizeof (isp_notify_t));
776 	notify.nt_hba = isp;
777 	notify.nt_wwn = INI_ANY;
778 	notify.nt_lun = (aep->at_cmnd.fcp_cmnd_lun[0] << 8) | (aep->at_cmnd.fcp_cmnd_lun[1]);
779 	notify.nt_tagval = aep->at_rxid;
780 	notify.nt_tagval |= (((uint64_t)(isp->isp_serno++)) << 32);
781 	notify.nt_lreserved = aep;
782 	sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
783 	did = (aep->at_hdr.d_id[0] << 16) | (aep->at_hdr.d_id[1] << 8) | aep->at_hdr.d_id[2];
784 	if (ISP_CAP_MULTI_ID(isp) && isp->isp_nchan > 1) {
785 		/* Channel has to be derived from D_ID */
786 		isp_find_chan_by_did(isp, did, &chan);
787 		if (chan == ISP_NOCHAN) {
788 			isp_prt(isp, ISP_LOGWARN, "%s: D_ID 0x%x not found on any channel", __func__, did);
789 			isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN, ECMD_TERMINATE, 0);
790 			return;
791 		}
792 	} else {
793 		chan = 0;
794 	}
795 	if (isp_find_pdb_by_portid(isp, chan, sid, &lp))
796 		notify.nt_nphdl = lp->handle;
797 	else
798 		notify.nt_nphdl = NIL_HANDLE;
799 	notify.nt_sid = sid;
800 	notify.nt_did = did;
801 	notify.nt_channel = chan;
802 	if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_QUERY_TASK_SET) {
803 		isp_prt(isp, ISP_LOGINFO, f1, "QUERY TASK SET", sid, notify.nt_lun, aep->at_rxid);
804 		notify.nt_ncode = NT_QUERY_TASK_SET;
805 	} else if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_ABORT_TASK_SET) {
806 		isp_prt(isp, ISP_LOGINFO, f1, "ABORT TASK SET", sid, notify.nt_lun, aep->at_rxid);
807 		notify.nt_ncode = NT_ABORT_TASK_SET;
808 	} else if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_CLEAR_TASK_SET) {
809 		isp_prt(isp, ISP_LOGINFO, f1, "CLEAR TASK SET", sid, notify.nt_lun, aep->at_rxid);
810 		notify.nt_ncode = NT_CLEAR_TASK_SET;
811 	} else if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_QUERY_ASYNC_EVENT) {
812 		isp_prt(isp, ISP_LOGINFO, f1, "QUERY ASYNC EVENT", sid, notify.nt_lun, aep->at_rxid);
813 		notify.nt_ncode = NT_QUERY_ASYNC_EVENT;
814 	} else if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_LUN_RESET) {
815 		isp_prt(isp, ISP_LOGINFO, f1, "LUN RESET", sid, notify.nt_lun, aep->at_rxid);
816 		notify.nt_ncode = NT_LUN_RESET;
817 	} else if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_TGT_RESET) {
818 		isp_prt(isp, ISP_LOGINFO, f1, "TARGET RESET", sid, notify.nt_lun, aep->at_rxid);
819 		notify.nt_ncode = NT_TARGET_RESET;
820 	} else if (aep->at_cmnd.fcp_cmnd_task_management & FCP_CMND_TMF_CLEAR_ACA) {
821 		isp_prt(isp, ISP_LOGINFO, f1, "CLEAR ACA", sid, notify.nt_lun, aep->at_rxid);
822 		notify.nt_ncode = NT_CLEAR_ACA;
823 	} else {
824 		isp_prt(isp, ISP_LOGWARN, f2, aep->at_cmnd.fcp_cmnd_task_management, notify.nt_lun, sid, aep->at_rxid);
825 		notify.nt_ncode = NT_UNKNOWN;
826 		isp_endcmd(isp, aep, notify.nt_nphdl, chan, ECMD_RVALID | (0x4 << 12), 0);
827 		return;
828 	}
829 	isp_async(isp, ISPASYNC_TARGET_NOTIFY, &notify);
830 }
831 
832 int
833 isp_notify_ack(ispsoftc_t *isp, void *arg)
834 {
835 	char storage[QENTRY_LEN];
836 	void *outp;
837 
838 	/*
839 	 * This is in case a Task Management Function ends up here.
840 	 */
841 	if (IS_24XX(isp) && arg != NULL && (((isphdr_t *)arg)->rqs_entry_type == RQSTYPE_ATIO)) {
842 		at7_entry_t *aep = arg;
843 		return (isp_endcmd(isp, aep, NIL_HANDLE, 0, 0, 0));
844 	}
845 
846 	outp = isp_getrqentry(isp);
847 	if (outp == NULL) {
848 		isp_prt(isp, ISP_LOGWARN, rqo, __func__);
849 		return (1);
850 	}
851 
852 	ISP_MEMZERO(storage, QENTRY_LEN);
853 
854 	if (IS_24XX(isp)) {
855 		na_fcentry_24xx_t *na = (na_fcentry_24xx_t *) storage;
856 		na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
857 		na->na_header.rqs_entry_count = 1;
858 		if (arg) {
859 			in_fcentry_24xx_t *in = arg;
860 			na->na_nphdl = in->in_nphdl;
861 			na->na_flags = in->in_flags;
862 			na->na_status = in->in_status;
863 			na->na_status_subcode = in->in_status_subcode;
864 			na->na_fwhandle = in->in_fwhandle;
865 			na->na_rxid = in->in_rxid;
866 			na->na_oxid = in->in_oxid;
867 			na->na_vpidx = in->in_vpidx;
868 			if (in->in_status == IN24XX_SRR_RCVD) {
869 				na->na_srr_rxid = in->in_srr_rxid;
870 				na->na_srr_reloff_hi = in->in_srr_reloff_hi;
871 				na->na_srr_reloff_lo = in->in_srr_reloff_lo;
872 				na->na_srr_iu = in->in_srr_iu;
873 				/*
874 				 * Whether we're accepting the SRR or rejecting
875 				 * it is determined by looking at the in_reserved
876 				 * field in the original notify structure.
877 				 */
878 				if (in->in_reserved) {
879 					na->na_srr_flags = 1;
880 					na->na_srr_reject_vunique = 0;
881 					na->na_srr_reject_code = 9;		/* unable to perform this command at this time */
882 					na->na_srr_reject_explanation = 0x2a;	/* unable to supply the requested data */
883 				}
884 			}
885 		}
886 		isp_put_notify_24xx_ack(isp, na, (na_fcentry_24xx_t *)outp);
887 	} else {
888 		na_fcentry_t *na = (na_fcentry_t *) storage;
889 		int iid = 0;
890 
891 		if (arg) {
892 			in_fcentry_t *inp = arg;
893 			ISP_MEMCPY(storage, arg, sizeof (isphdr_t));
894 			if (ISP_CAP_2KLOGIN(isp)) {
895 				((na_fcentry_e_t *)na)->na_iid = ((in_fcentry_e_t *)inp)->in_iid;
896 				iid = ((na_fcentry_e_t *)na)->na_iid;
897 			} else {
898 				na->na_iid = inp->in_iid;
899 				iid = na->na_iid;
900 			}
901 			na->na_task_flags = inp->in_task_flags & TASK_FLAGS_RESERVED_MASK;
902 			na->na_seqid = inp->in_seqid;
903 			na->na_status = inp->in_status;
904 			na->na_flags = NAFC_RCOUNT;
905 			if (inp->in_status == IN_RESET) {
906 				na->na_flags = NAFC_RST_CLRD;	/* We do not modify resource counts for LIP resets */
907 			}
908 			if (inp->in_status == IN_MSG_RECEIVED) {
909 				na->na_flags |= NAFC_TVALID;
910 				na->na_response = 0;	/* XXX SUCCEEDED XXX */
911 			}
912 		} else {
913 			na->na_flags = NAFC_RST_CLRD;
914 		}
915 		na->na_header.rqs_entry_type = RQSTYPE_NOTIFY_ACK;
916 		na->na_header.rqs_entry_count = 1;
917 		if (ISP_CAP_2KLOGIN(isp)) {
918 			isp_put_notify_ack_fc_e(isp, (na_fcentry_e_t *) na, (na_fcentry_e_t *)outp);
919 		} else {
920 			isp_put_notify_ack_fc(isp, na, (na_fcentry_t *)outp);
921 		}
922 		isp_prt(isp, ISP_LOGTDEBUG0, "notify ack handle %x seqid %x flags %x tflags %x response %x", iid, na->na_seqid,
923 		    na->na_flags, na->na_task_flags, na->na_response);
924 	}
925 	ISP_TDQE(isp, "isp_notify_ack", isp->isp_reqidx, storage);
926 	ISP_SYNC_REQUEST(isp);
927 	return (0);
928 }
929 
930 int
931 isp_acknak_abts(ispsoftc_t *isp, void *arg, int errno)
932 {
933 	char storage[QENTRY_LEN];
934 	uint16_t tmpw;
935 	uint8_t tmpb;
936 	abts_t *abts = arg;
937 	abts_rsp_t *rsp = (abts_rsp_t *) storage;
938 	void *outp;
939 
940 	if (!IS_24XX(isp)) {
941 		isp_prt(isp, ISP_LOGERR, "%s: called for non-24XX card", __func__);
942 		return (0);
943 	}
944 
945 	if (abts->abts_header.rqs_entry_type != RQSTYPE_ABTS_RCVD) {
946 		isp_prt(isp, ISP_LOGERR, "%s: called for non-ABTS entry (0x%x)", __func__, abts->abts_header.rqs_entry_type);
947 		return (0);
948 	}
949 
950 	outp = isp_getrqentry(isp);
951 	if (outp == NULL) {
952 		isp_prt(isp, ISP_LOGWARN, rqo, __func__);
953 		return (1);
954 	}
955 
956 	ISP_MEMCPY(rsp, abts, QENTRY_LEN);
957 	rsp->abts_rsp_header.rqs_entry_type = RQSTYPE_ABTS_RSP;
958 
959 	/*
960 	 * Swap destination and source for response.
961 	 */
962 	rsp->abts_rsp_r_ctl = BA_ACC;
963 	tmpw = rsp->abts_rsp_did_lo;
964 	tmpb = rsp->abts_rsp_did_hi;
965 	rsp->abts_rsp_did_lo = rsp->abts_rsp_sid_lo;
966 	rsp->abts_rsp_did_hi = rsp->abts_rsp_sid_hi;
967 	rsp->abts_rsp_sid_lo = tmpw;
968 	rsp->abts_rsp_sid_hi = tmpb;
969 
970 	rsp->abts_rsp_f_ctl_hi ^= 0x80; 	/* invert Exchange Context */
971 	rsp->abts_rsp_f_ctl_hi &= ~0x7f;	/* clear Sequence Initiator and other bits */
972 	rsp->abts_rsp_f_ctl_hi |= 0x10;		/* abort the whole exchange */
973 	rsp->abts_rsp_f_ctl_hi |= 0x8;		/* last data frame of sequence */
974 	rsp->abts_rsp_f_ctl_hi |= 0x1;		/* transfer Sequence Initiative */
975 	rsp->abts_rsp_f_ctl_lo = 0;
976 
977 	if (errno == 0) {
978 		uint16_t rx_id, ox_id;
979 
980 		rx_id = rsp->abts_rsp_rx_id;
981 		ox_id = rsp->abts_rsp_ox_id;
982 		ISP_MEMZERO(&rsp->abts_rsp_payload.ba_acc, sizeof (rsp->abts_rsp_payload.ba_acc));
983                 isp_prt(isp, ISP_LOGTINFO, "[0x%x] ABTS of 0x%x being BA_ACC'd", rsp->abts_rsp_rxid_abts, rsp->abts_rsp_rxid_task);
984                 rsp->abts_rsp_payload.ba_acc.aborted_rx_id = rx_id;
985                 rsp->abts_rsp_payload.ba_acc.aborted_ox_id = ox_id;
986                 rsp->abts_rsp_payload.ba_acc.high_seq_cnt = 0xffff;
987 	} else {
988 		ISP_MEMZERO(&rsp->abts_rsp_payload.ba_rjt, sizeof (rsp->abts_rsp_payload.ba_acc));
989 		switch (errno) {
990 		case ENOMEM:
991 			rsp->abts_rsp_payload.ba_rjt.reason = 5;	/* Logical Unit Busy */
992 			break;
993 		default:
994 			rsp->abts_rsp_payload.ba_rjt.reason = 9;	/* Unable to perform command request */
995 			break;
996 		}
997 	}
998 
999 	/*
1000 	 * The caller will have set response values as appropriate
1001 	 * in the ABTS structure just before calling us.
1002 	 */
1003 	isp_put_abts_rsp(isp, rsp, (abts_rsp_t *)outp);
1004 	ISP_TDQE(isp, "isp_acknak_abts", isp->isp_reqidx, storage);
1005 	ISP_SYNC_REQUEST(isp);
1006 	return (0);
1007 }
1008 
1009 static void
1010 isp_handle_atio2(ispsoftc_t *isp, at2_entry_t *aep)
1011 {
1012 	int lun, iid;
1013 
1014 	if (ISP_CAP_SCCFW(isp)) {
1015 		lun = aep->at_scclun;
1016 	} else {
1017 		lun = aep->at_lun;
1018 	}
1019 
1020 	if (ISP_CAP_2KLOGIN(isp)) {
1021 		iid = ((at2e_entry_t *)aep)->at_iid;
1022 	} else {
1023 		iid = aep->at_iid;
1024 	}
1025 
1026 	/*
1027 	 * The firmware status (except for the QLTM_SVALID bit) indicates
1028 	 * why this ATIO was sent to us.
1029 	 *
1030 	 * If QLTM_SVALID is set, the firware has recommended Sense Data.
1031 	 *
1032 	 * If the DISCONNECTS DISABLED bit is set in the flags field,
1033 	 * we're still connected on the SCSI bus - i.e. the initiator
1034 	 * did not set DiscPriv in the identify message. We don't care
1035 	 * about this so it's ignored.
1036 	 */
1037 
1038 	switch (aep->at_status & ~QLTM_SVALID) {
1039 	case AT_PATH_INVALID:
1040 		/*
1041 		 * ATIO rejected by the firmware due to disabled lun.
1042 		 */
1043 		isp_prt(isp, ISP_LOGERR, "rejected ATIO2 for disabled lun %x", lun);
1044 		break;
1045 	case AT_NOCAP:
1046 		/*
1047 		 * Requested Capability not available
1048 		 * We sent an ATIO that overflowed the firmware's
1049 		 * command resource count.
1050 		 */
1051 		isp_prt(isp, ISP_LOGERR, "rejected ATIO2 for lun %x- command count overflow", lun);
1052 		break;
1053 
1054 	case AT_BDR_MSG:
1055 		/*
1056 		 * If we send an ATIO to the firmware to increment
1057 		 * its command resource count, and the firmware is
1058 		 * recovering from a Bus Device Reset, it returns
1059 		 * the ATIO with this status. We set the command
1060 		 * resource count in the Enable Lun entry and no
1061 		 * not increment it. Therefore we should never get
1062 		 * this status here.
1063 		 */
1064 		isp_prt(isp, ISP_LOGERR, atiocope, lun, 0);
1065 		break;
1066 
1067 	case AT_CDB:		/* Got a CDB */
1068 		/*
1069 		 * Punt to platform specific layer.
1070 		 */
1071 		isp_async(isp, ISPASYNC_TARGET_ACTION, aep);
1072 		break;
1073 
1074 	case AT_RESET:
1075 		/*
1076 		 * A bus reset came along an blew away this command. Why
1077 		 * they do this in addition the async event code stuff,
1078 		 * I dunno.
1079 		 *
1080 		 * Ignore it because the async event will clear things
1081 		 * up for us.
1082 		 */
1083 		isp_prt(isp, ISP_LOGERR, atior, lun, iid, 0);
1084 		break;
1085 
1086 
1087 	default:
1088 		isp_prt(isp, ISP_LOGERR, "Unknown ATIO2 status 0x%x from handle %d for lun %x", aep->at_status, iid, lun);
1089 		(void) isp_target_put_atio(isp, aep);
1090 		break;
1091 	}
1092 }
1093 
1094 static void
1095 isp_handle_ctio2(ispsoftc_t *isp, ct2_entry_t *ct)
1096 {
1097 	void *xs;
1098 	int pl = ISP_LOGTDEBUG2;
1099 	char *fmsg = NULL;
1100 
1101 	if (ct->ct_syshandle) {
1102 		xs = isp_find_xs(isp, ct->ct_syshandle);
1103 		if (xs == NULL) {
1104 			pl = ISP_LOGALL;
1105 		}
1106 	} else {
1107 		xs = NULL;
1108 	}
1109 
1110 	switch (ct->ct_status & ~QLTM_SVALID) {
1111 	case CT_BUS_ERROR:
1112 		isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error");
1113 		/* FALL Through */
1114 	case CT_DATA_OVER:
1115 	case CT_DATA_UNDER:
1116 	case CT_OK:
1117 		/*
1118 		 * There are generally 2 possibilities as to why we'd get
1119 		 * this condition:
1120 		 * 	We sent or received data.
1121 		 * 	We sent status & command complete.
1122 		 */
1123 
1124 		break;
1125 
1126 	case CT_BDR_MSG:
1127 		/*
1128 		 * Target Reset function received.
1129 		 *
1130 		 * The firmware generates an async mailbox interrupt to
1131 		 * notify us of this and returns outstanding CTIOs with this
1132 		 * status. These CTIOs are handled in that same way as
1133 		 * CT_ABORTED ones, so just fall through here.
1134 		 */
1135 		fmsg = "TARGET RESET";
1136 		/*FALLTHROUGH*/
1137 	case CT_RESET:
1138 		if (fmsg == NULL)
1139 			fmsg = "LIP Reset";
1140 		/*FALLTHROUGH*/
1141 	case CT_ABORTED:
1142 		/*
1143 		 * When an Abort message is received the firmware goes to
1144 		 * Bus Free and returns all outstanding CTIOs with the status
1145 		 * set, then sends us an Immediate Notify entry.
1146 		 */
1147 		if (fmsg == NULL) {
1148 			fmsg = "ABORT";
1149 		}
1150 
1151 		isp_prt(isp, ISP_LOGTDEBUG0, "CTIO2 destroyed by %s: RX_ID=0x%x", fmsg, ct->ct_rxid);
1152 		break;
1153 
1154 	case CT_INVAL:
1155 		/*
1156 		 * CTIO rejected by the firmware - invalid data direction.
1157 		 */
1158 		isp_prt(isp, ISP_LOGERR, "CTIO2 had wrong data direction");
1159 		break;
1160 
1161 	case CT_RSELTMO:
1162 		fmsg = "failure to reconnect to initiator";
1163 		/*FALLTHROUGH*/
1164 	case CT_TIMEOUT:
1165 		if (fmsg == NULL)
1166 			fmsg = "command";
1167 		isp_prt(isp, ISP_LOGWARN, "Firmware timed out on %s", fmsg);
1168 		break;
1169 
1170 	case CT_ERR:
1171 		fmsg = "Completed with Error";
1172 		/*FALLTHROUGH*/
1173 	case CT_LOGOUT:
1174 		if (fmsg == NULL)
1175 			fmsg = "Port Logout";
1176 		/*FALLTHROUGH*/
1177 	case CT_PORTUNAVAIL:
1178 		if (fmsg == NULL)
1179 			fmsg = "Port not available";
1180 		/*FALLTHROUGH*/
1181 	case CT_PORTCHANGED:
1182 		if (fmsg == NULL)
1183 			fmsg = "Port Changed";
1184 		/*FALLTHROUGH*/
1185 	case CT_NOACK:
1186 		if (fmsg == NULL)
1187 			fmsg = "unacknowledged Immediate Notify pending";
1188 		isp_prt(isp, ISP_LOGWARN, "CTIO returned by f/w- %s", fmsg);
1189 		break;
1190 
1191 	case CT_INVRXID:
1192 		/*
1193 		 * CTIO rejected by the firmware because an invalid RX_ID.
1194 		 * Just print a message.
1195 		 */
1196 		isp_prt(isp, ISP_LOGWARN, "CTIO2 completed with Invalid RX_ID 0x%x", ct->ct_rxid);
1197 		break;
1198 
1199 	default:
1200 		isp_prt(isp, ISP_LOGERR, "Unknown CTIO2 status 0x%x", ct->ct_status & ~QLTM_SVALID);
1201 		break;
1202 	}
1203 
1204 	if (xs == NULL) {
1205 		/*
1206 		 * There may be more than one CTIO for a data transfer,
1207 		 * or this may be a status CTIO we're not monitoring.
1208 		 *
1209 		 * The assumption is that they'll all be returned in the
1210 		 * order we got them.
1211 		 */
1212 		if (ct->ct_syshandle == 0) {
1213 			if ((ct->ct_flags & CT2_SENDSTATUS) == 0) {
1214 				isp_prt(isp, pl, "intermediate CTIO completed ok");
1215 			} else {
1216 				isp_prt(isp, pl, "unmonitored CTIO completed ok");
1217 			}
1218 		} else {
1219 			isp_prt(isp, pl, "NO xs for CTIO (handle 0x%x) status 0x%x", ct->ct_syshandle, ct->ct_status & ~QLTM_SVALID);
1220 		}
1221 	} else {
1222 		if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) {
1223 			ISP_DMAFREE(isp, xs, ct->ct_syshandle);
1224 		}
1225 		if (ct->ct_flags & CT2_SENDSTATUS) {
1226 			/*
1227 			 * Sent status and command complete.
1228 			 *
1229 			 * We're now really done with this command, so we
1230 			 * punt to the platform dependent layers because
1231 			 * only there can we do the appropriate command
1232 			 * complete thread synchronization.
1233 			 */
1234 			isp_prt(isp, pl, "status CTIO complete");
1235 		} else {
1236 			/*
1237 			 * Final CTIO completed. Release DMA resources and
1238 			 * notify platform dependent layers.
1239 			 */
1240 			isp_prt(isp, pl, "data CTIO complete");
1241 		}
1242 		isp_async(isp, ISPASYNC_TARGET_ACTION, ct);
1243 		/*
1244 		 * The platform layer will destroy the handle if appropriate.
1245 		 */
1246 	}
1247 }
1248 
1249 static void
1250 isp_handle_ctio7(ispsoftc_t *isp, ct7_entry_t *ct)
1251 {
1252 	void *xs;
1253 	int pl = ISP_LOGTDEBUG2;
1254 	char *fmsg = NULL;
1255 
1256 	if (ct->ct_syshandle) {
1257 		xs = isp_find_xs(isp, ct->ct_syshandle);
1258 		if (xs == NULL) {
1259 			pl = ISP_LOGALL;
1260 		}
1261 	} else {
1262 		xs = NULL;
1263 	}
1264 
1265 	switch (ct->ct_nphdl) {
1266 	case CT7_BUS_ERROR:
1267 		isp_prt(isp, ISP_LOGERR, "PCI DMA Bus Error");
1268 		/* FALL Through */
1269 	case CT7_DATA_OVER:
1270 	case CT7_DATA_UNDER:
1271 	case CT7_OK:
1272 		/*
1273 		 * There are generally 2 possibilities as to why we'd get
1274 		 * this condition:
1275 		 * 	We sent or received data.
1276 		 * 	We sent status & command complete.
1277 		 */
1278 
1279 		break;
1280 
1281 	case CT7_RESET:
1282 		if (fmsg == NULL) {
1283 			fmsg = "LIP Reset";
1284 		}
1285 		/*FALLTHROUGH*/
1286 	case CT7_ABORTED:
1287 		/*
1288 		 * When an Abort message is received the firmware goes to
1289 		 * Bus Free and returns all outstanding CTIOs with the status
1290 		 * set, then sends us an Immediate Notify entry.
1291 		 */
1292 		if (fmsg == NULL) {
1293 			fmsg = "ABORT";
1294 		}
1295 		isp_prt(isp, ISP_LOGTDEBUG0, "CTIO7 destroyed by %s: RX_ID=0x%x", fmsg, ct->ct_rxid);
1296 		break;
1297 
1298 	case CT7_TIMEOUT:
1299 		if (fmsg == NULL) {
1300 			fmsg = "command";
1301 		}
1302 		isp_prt(isp, ISP_LOGWARN, "Firmware timed out on %s", fmsg);
1303 		break;
1304 
1305 	case CT7_ERR:
1306 		fmsg = "Completed with Error";
1307 		/*FALLTHROUGH*/
1308 	case CT7_LOGOUT:
1309 		if (fmsg == NULL) {
1310 			fmsg = "Port Logout";
1311 		}
1312 		/*FALLTHROUGH*/
1313 	case CT7_PORTUNAVAIL:
1314 		if (fmsg == NULL) {
1315 			fmsg = "Port not available";
1316 		}
1317 		/*FALLTHROUGH*/
1318 	case CT7_PORTCHANGED:
1319 		if (fmsg == NULL) {
1320 			fmsg = "Port Changed";
1321 		}
1322 		isp_prt(isp, ISP_LOGWARN, "CTIO returned by f/w- %s", fmsg);
1323 		break;
1324 
1325 	case CT7_INVRXID:
1326 		/*
1327 		 * CTIO rejected by the firmware because an invalid RX_ID.
1328 		 * Just print a message.
1329 		 */
1330 		isp_prt(isp, ISP_LOGWARN, "CTIO7 completed with Invalid RX_ID 0x%x", ct->ct_rxid);
1331 		break;
1332 
1333 	case CT7_REASSY_ERR:
1334 		isp_prt(isp, ISP_LOGWARN, "reassembly error");
1335 		break;
1336 
1337 	case CT7_SRR:
1338 		isp_prt(isp, ISP_LOGTDEBUG0, "SRR received");
1339 		break;
1340 
1341 	default:
1342 		isp_prt(isp, ISP_LOGERR, "Unknown CTIO7 status 0x%x", ct->ct_nphdl);
1343 		break;
1344 	}
1345 
1346 	if (xs == NULL) {
1347 		/*
1348 		 * There may be more than one CTIO for a data transfer,
1349 		 * or this may be a status CTIO we're not monitoring.
1350 		 *
1351 		 * The assumption is that they'll all be returned in the
1352 		 * order we got them.
1353 		 */
1354 		if (ct->ct_syshandle == 0) {
1355 			if (ct->ct_flags & CT7_TERMINATE) {
1356 				isp_prt(isp, ISP_LOGINFO, "termination of [RX_ID 0x%x] complete", ct->ct_rxid);
1357 			} else if ((ct->ct_flags & CT7_SENDSTATUS) == 0) {
1358 				isp_prt(isp, pl, "intermediate CTIO completed ok");
1359 			} else {
1360 				isp_prt(isp, pl, "unmonitored CTIO completed ok");
1361 			}
1362 		} else {
1363 			isp_prt(isp, pl, "NO xs for CTIO (handle 0x%x) status 0x%x", ct->ct_syshandle, ct->ct_nphdl);
1364 		}
1365 	} else {
1366 		if ((ct->ct_flags & CT7_DATAMASK) != CT7_NO_DATA) {
1367 			ISP_DMAFREE(isp, xs, ct->ct_syshandle);
1368 		}
1369 		if (ct->ct_flags & CT7_SENDSTATUS) {
1370 			/*
1371 			 * Sent status and command complete.
1372 			 *
1373 			 * We're now really done with this command, so we
1374 			 * punt to the platform dependent layers because
1375 			 * only there can we do the appropriate command
1376 			 * complete thread synchronization.
1377 			 */
1378 			isp_prt(isp, pl, "status CTIO complete");
1379 		} else {
1380 			/*
1381 			 * Final CTIO completed. Release DMA resources and
1382 			 * notify platform dependent layers.
1383 			 */
1384 			isp_prt(isp, pl, "data CTIO complete");
1385 		}
1386 		isp_async(isp, ISPASYNC_TARGET_ACTION, ct);
1387 		/*
1388 		 * The platform layer will destroy the handle if appropriate.
1389 		 */
1390 	}
1391 }
1392 
1393 static void
1394 isp_handle_24xx_inotify(ispsoftc_t *isp, in_fcentry_24xx_t *inot_24xx)
1395 {
1396 	uint8_t ochan, chan, lochan, hichan;
1397 
1398 	/*
1399 	 * Check to see whether we got a wildcard channel.
1400 	 * If so, we have to iterate over all channels.
1401 	 */
1402 	ochan = chan = ISP_GET_VPIDX(isp, inot_24xx->in_vpidx);
1403 	if (chan == 0xff) {
1404 		lochan = 0;
1405 		hichan = isp->isp_nchan;
1406 	} else {
1407 		if (chan >= isp->isp_nchan) {
1408 			char buf[64];
1409 			ISP_SNPRINTF(buf, sizeof buf, "%s: bad channel %d for status 0x%x", __func__, chan, inot_24xx->in_status);
1410 			isp_print_bytes(isp, buf, QENTRY_LEN, inot_24xx);
1411 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot_24xx);
1412 			return;
1413 		}
1414 		lochan = chan;
1415 		hichan = chan + 1;
1416 	}
1417 	isp_prt(isp, ISP_LOGTDEBUG1, "%s: Immediate Notify Channels %d..%d status=0x%x seqid=0x%x", __func__, lochan, hichan-1, inot_24xx->in_status, inot_24xx->in_rxid);
1418 	for (chan = lochan; chan < hichan; chan++) {
1419 		if (FCPARAM(isp, chan)->role == ISP_ROLE_NONE)
1420 			continue;
1421 		switch (inot_24xx->in_status) {
1422 		case IN24XX_LIP_RESET:
1423 		case IN24XX_LINK_RESET:
1424 		case IN24XX_PORT_LOGOUT:
1425 		case IN24XX_PORT_CHANGED:
1426 		case IN24XX_LINK_FAILED:
1427 		case IN24XX_SRR_RCVD:
1428 		case IN24XX_ELS_RCVD:
1429 			inot_24xx->in_reserved = 0;	/* clear this for later usage */
1430 			inot_24xx->in_vpidx = chan;
1431 			isp_async(isp, ISPASYNC_TARGET_ACTION, inot_24xx);
1432 			break;
1433 		default:
1434 			isp_prt(isp, ISP_LOGINFO, "%s: unhandled status (0x%x) for chan %d", __func__, inot_24xx->in_status, chan);
1435 			isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot_24xx);
1436 			break;
1437 		}
1438 	}
1439 	inot_24xx->in_vpidx = ochan;
1440 }
1441 #endif
1442