xref: /netbsd-src/sys/dev/ic/uha.c (revision aaf4ece63a859a04e37cf3a7229b5fab0157cc06) 
1 /*	$NetBSD: uha.c,v 1.36 2005/12/11 12:21:28 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
9  * Simulation Facility, NASA Ames Research Center.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the NetBSD
22  *	Foundation, Inc. and its contributors.
23  * 4. Neither the name of The NetBSD Foundation nor the names of its
24  *    contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGE.
38  */
39 
40 /*
41  * Ported for use with the UltraStor 14f by Gary Close (gclose@wvnvms.wvnet.edu)
42  * Slight fixes to timeouts to run with the 34F
43  * Thanks to Julian Elischer for advice and help with this port.
44  *
45  * Originally written by Julian Elischer (julian@tfs.com)
46  * for TRW Financial Systems for use under the MACH(2.5) operating system.
47  *
48  * TRW Financial Systems, in accordance with their agreement with Carnegie
49  * Mellon University, makes this software available to CMU to distribute
50  * or use in any manner that they see fit as long as this message is kept with
51  * the software. For this reason TFS also grants any other persons or
52  * organisations permission to use or modify this software.
53  *
54  * TFS supplies this software to be publicly redistributed
55  * on the understanding that TFS is not responsible for the correct
56  * functioning of this software in any circumstances.
57  *
58  * commenced: Sun Sep 27 18:14:01 PDT 1992
59  * slight mod to make work with 34F as well: Wed Jun  2 18:05:48 WST 1993
60  */
61 
62 #include <sys/cdefs.h>
63 __KERNEL_RCSID(0, "$NetBSD: uha.c,v 1.36 2005/12/11 12:21:28 christos Exp $");
64 
65 #undef UHADEBUG
66 #ifdef DDB
67 #define	integrate
68 #else
69 #define	integrate	static inline
70 #endif
71 
72 #include <sys/param.h>
73 #include <sys/systm.h>
74 #include <sys/kernel.h>
75 #include <sys/errno.h>
76 #include <sys/ioctl.h>
77 #include <sys/device.h>
78 #include <sys/malloc.h>
79 #include <sys/buf.h>
80 #include <sys/proc.h>
81 #include <sys/user.h>
82 
83 #include <uvm/uvm_extern.h>
84 
85 #include <machine/bus.h>
86 #include <machine/intr.h>
87 
88 #include <dev/scsipi/scsi_all.h>
89 #include <dev/scsipi/scsipi_all.h>
90 #include <dev/scsipi/scsiconf.h>
91 
92 #include <dev/ic/uhareg.h>
93 #include <dev/ic/uhavar.h>
94 
95 #ifndef	DDB
96 #define Debugger() panic("should call debugger here (uha.c)")
97 #endif /* ! DDB */
98 
99 #define	UHA_MAXXFER	((UHA_NSEG - 1) << PGSHIFT)
100 
101 integrate void uha_reset_mscp(struct uha_softc *, struct uha_mscp *);
102 void uha_free_mscp(struct uha_softc *, struct uha_mscp *);
103 integrate int uha_init_mscp(struct uha_softc *, struct uha_mscp *);
104 struct uha_mscp *uha_get_mscp(struct uha_softc *);
105 void uhaminphys(struct buf *);
106 void uha_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, void *);
107 int uha_create_mscps(struct uha_softc *, struct uha_mscp *, int);
108 
109 #define	UHA_ABORT_TIMEOUT	2000	/* time to wait for abort (mSec) */
110 
111 /*
112  * Attach all the sub-devices we can find
113  */
114 void
115 uha_attach(sc, upd)
116 	struct uha_softc *sc;
117 	struct uha_probe_data *upd;
118 {
119 	struct scsipi_adapter *adapt = &sc->sc_adapter;
120 	struct scsipi_channel *chan = &sc->sc_channel;
121 	bus_dma_segment_t seg;
122 	int i, error, rseg;
123 
124 	TAILQ_INIT(&sc->sc_free_mscp);
125 
126 	(sc->init)(sc);
127 
128 	/*
129 	 * Fill in the scsipi_adapter.
130 	 */
131 	memset(adapt, 0, sizeof(*adapt));
132 	adapt->adapt_dev = &sc->sc_dev;
133 	adapt->adapt_nchannels = 1;
134 	/* adapt_openings initialized below */
135 	/* adapt_max_periph initialized below */
136 	adapt->adapt_request = uha_scsipi_request;
137 	adapt->adapt_minphys = uhaminphys;
138 
139 	/*
140 	 * Fill in the scsipi_channel.
141 	 */
142 	memset(chan, 0, sizeof(*chan));
143 	chan->chan_adapter = adapt;
144 	chan->chan_bustype = &scsi_bustype;
145 	chan->chan_channel = 0;
146 	chan->chan_ntargets = 8;
147 	chan->chan_nluns = 8;
148 	chan->chan_id = upd->sc_scsi_dev;
149 
150 #define	MSCPSIZE	(UHA_MSCP_MAX * sizeof(struct uha_mscp))
151 
152 	/*
153 	 * Allocate the MSCPs.
154 	 */
155 	if ((error = bus_dmamem_alloc(sc->sc_dmat, MSCPSIZE,
156 	    PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) != 0) {
157 		printf("%s: unable to allocate mscps, error = %d\n",
158 		    sc->sc_dev.dv_xname, error);
159 		return;
160 	}
161 	if ((error = bus_dmamem_map(sc->sc_dmat, &seg, rseg,
162 	    MSCPSIZE, (caddr_t *)&sc->sc_mscps,
163 	    BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
164 		printf("%s: unable to map mscps, error = %d\n",
165 		    sc->sc_dev.dv_xname, error);
166 		return;
167 	}
168 
169 	/*
170 	 * Create and load the DMA map used for the mscps.
171 	 */
172 	if ((error = bus_dmamap_create(sc->sc_dmat, MSCPSIZE,
173 	    1, MSCPSIZE, 0, BUS_DMA_NOWAIT | sc->sc_dmaflags,
174 	    &sc->sc_dmamap_mscp)) != 0) {
175 		printf("%s: unable to create mscp DMA map, error = %d\n",
176 		    sc->sc_dev.dv_xname, error);
177 		return;
178 	}
179 	if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap_mscp,
180 	    sc->sc_mscps, MSCPSIZE, NULL, BUS_DMA_NOWAIT)) != 0) {
181 		printf("%s: unable to load mscp DMA map, error = %d\n",
182 		    sc->sc_dev.dv_xname, error);
183 		return;
184 	}
185 
186 #undef MSCPSIZE
187 
188 	/*
189 	 * Initialize the mscps.
190 	 */
191 	i = uha_create_mscps(sc, sc->sc_mscps, UHA_MSCP_MAX);
192 	if (i == 0) {
193 		printf("%s: unable to create mscps\n",
194 		    sc->sc_dev.dv_xname);
195 		return;
196 	} else if (i != UHA_MSCP_MAX) {
197 		printf("%s: WARNING: only %d of %d mscps created\n",
198 		    sc->sc_dev.dv_xname, i, UHA_MSCP_MAX);
199 	}
200 
201 	adapt->adapt_openings = i;
202 	adapt->adapt_max_periph = adapt->adapt_openings;
203 
204 	/*
205 	 * ask the adapter what subunits are present
206 	 */
207 	config_found(&sc->sc_dev, &sc->sc_channel, scsiprint);
208 }
209 
210 integrate void
211 uha_reset_mscp(sc, mscp)
212 	struct uha_softc *sc;
213 	struct uha_mscp *mscp;
214 {
215 
216 	mscp->flags = 0;
217 }
218 
219 /*
220  * A mscp (and hence a mbx-out) is put onto the free list.
221  */
222 void
223 uha_free_mscp(sc, mscp)
224 	struct uha_softc *sc;
225 	struct uha_mscp *mscp;
226 {
227 	int s;
228 
229 	s = splbio();
230 	uha_reset_mscp(sc, mscp);
231 	TAILQ_INSERT_HEAD(&sc->sc_free_mscp, mscp, chain);
232 	splx(s);
233 }
234 
235 integrate int
236 uha_init_mscp(sc, mscp)
237 	struct uha_softc *sc;
238 	struct uha_mscp *mscp;
239 {
240 	bus_dma_tag_t dmat = sc->sc_dmat;
241 	int hashnum, error;
242 
243 	/*
244 	 * Create the DMA map for this MSCP.
245 	 */
246 	error = bus_dmamap_create(dmat, UHA_MAXXFER, UHA_NSEG, UHA_MAXXFER,
247 	    0, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW | sc->sc_dmaflags,
248 	    &mscp->dmamap_xfer);
249 	if (error) {
250 		printf("%s: can't create mscp DMA map, error = %d\n",
251 		    sc->sc_dev.dv_xname, error);
252 		return (error);
253 	}
254 
255 	/*
256 	 * put in the phystokv hash table
257 	 * Never gets taken out.
258 	 */
259 	mscp->hashkey = sc->sc_dmamap_mscp->dm_segs[0].ds_addr +
260 	    UHA_MSCP_OFF(mscp);
261 	hashnum = MSCP_HASH(mscp->hashkey);
262 	mscp->nexthash = sc->sc_mscphash[hashnum];
263 	sc->sc_mscphash[hashnum] = mscp;
264 	uha_reset_mscp(sc, mscp);
265 	return (0);
266 }
267 
268 /*
269  * Create a set of MSCPs and add them to the free list.
270  */
271 int
272 uha_create_mscps(sc, mscpstore, count)
273 	struct uha_softc *sc;
274 	struct uha_mscp *mscpstore;
275 	int count;
276 {
277 	struct uha_mscp *mscp;
278 	int i, error;
279 
280 	memset(mscpstore, 0, sizeof(struct uha_mscp) * count);
281 	for (i = 0; i < count; i++) {
282 		mscp = &mscpstore[i];
283 		if ((error = uha_init_mscp(sc, mscp)) != 0) {
284 			printf("%s: unable to initialize mscp, error = %d\n",
285 			    sc->sc_dev.dv_xname, error);
286 			goto out;
287 		}
288 		TAILQ_INSERT_TAIL(&sc->sc_free_mscp, mscp, chain);
289 	}
290  out:
291 	return (i);
292 }
293 
294 /*
295  * Get a free mscp
296  *
297  * If there are none, see if we can allocate a new one.  If so, put it in the
298  * hash table too otherwise either return an error or sleep.
299  */
300 struct uha_mscp *
301 uha_get_mscp(sc)
302 	struct uha_softc *sc;
303 {
304 	struct uha_mscp *mscp;
305 	int s;
306 
307 	s = splbio();
308 	mscp = TAILQ_FIRST(&sc->sc_free_mscp);
309 	if (mscp != NULL) {
310 		TAILQ_REMOVE(&sc->sc_free_mscp, mscp, chain);
311 		mscp->flags |= MSCP_ALLOC;
312 	}
313 	splx(s);
314 	return (mscp);
315 }
316 
317 /*
318  * given a physical address, find the mscp that it corresponds to.
319  */
320 struct uha_mscp *
321 uha_mscp_phys_kv(sc, mscp_phys)
322 	struct uha_softc *sc;
323 	u_long mscp_phys;
324 {
325 	int hashnum = MSCP_HASH(mscp_phys);
326 	struct uha_mscp *mscp = sc->sc_mscphash[hashnum];
327 
328 	while (mscp) {
329 		if (mscp->hashkey == mscp_phys)
330 			break;
331 		mscp = mscp->nexthash;
332 	}
333 	return (mscp);
334 }
335 
336 /*
337  * We have a mscp which has been processed by the adaptor, now we look to see
338  * how the operation went.
339  */
340 void
341 uha_done(sc, mscp)
342 	struct uha_softc *sc;
343 	struct uha_mscp *mscp;
344 {
345 	bus_dma_tag_t dmat = sc->sc_dmat;
346 	struct scsi_sense_data *s1, *s2;
347 	struct scsipi_xfer *xs = mscp->xs;
348 
349 	SC_DEBUG(xs->xs_periph, SCSIPI_DB2, ("uha_done\n"));
350 
351 	bus_dmamap_sync(dmat, sc->sc_dmamap_mscp,
352 	    UHA_MSCP_OFF(mscp), sizeof(struct uha_mscp),
353 	    BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
354 
355 	/*
356 	 * If we were a data transfer, unload the map that described
357 	 * the data buffer.
358 	 */
359 	if (xs->datalen) {
360 		bus_dmamap_sync(dmat, mscp->dmamap_xfer, 0,
361 		    mscp->dmamap_xfer->dm_mapsize,
362 		    (xs->xs_control & XS_CTL_DATA_IN) ? BUS_DMASYNC_POSTREAD :
363 		    BUS_DMASYNC_POSTWRITE);
364 		bus_dmamap_unload(dmat, mscp->dmamap_xfer);
365 	}
366 
367 	/*
368 	 * Otherwise, put the results of the operation
369 	 * into the xfer and call whoever started it
370 	 */
371 	if ((mscp->flags & MSCP_ALLOC) == 0) {
372 		printf("%s: exiting ccb not allocated!\n", sc->sc_dev.dv_xname);
373 		Debugger();
374 		return;
375 	}
376 	if (xs->error == XS_NOERROR) {
377 		if (mscp->host_stat != UHA_NO_ERR) {
378 			switch (mscp->host_stat) {
379 			case UHA_SBUS_TIMEOUT:		/* No response */
380 				xs->error = XS_SELTIMEOUT;
381 				break;
382 			default:	/* Other scsi protocol messes */
383 				printf("%s: host_stat %x\n",
384 				    sc->sc_dev.dv_xname, mscp->host_stat);
385 				xs->error = XS_DRIVER_STUFFUP;
386 			}
387 		} else if (mscp->target_stat != SCSI_OK) {
388 			switch (mscp->target_stat) {
389 			case SCSI_CHECK:
390 				s1 = &mscp->mscp_sense;
391 				s2 = &xs->sense.scsi_sense;
392 				*s2 = *s1;
393 				xs->error = XS_SENSE;
394 				break;
395 			case SCSI_BUSY:
396 				xs->error = XS_BUSY;
397 				break;
398 			default:
399 				printf("%s: target_stat %x\n",
400 				    sc->sc_dev.dv_xname, mscp->target_stat);
401 				xs->error = XS_DRIVER_STUFFUP;
402 			}
403 		} else
404 			xs->resid = 0;
405 	}
406 	uha_free_mscp(sc, mscp);
407 	scsipi_done(xs);
408 }
409 
410 void
411 uhaminphys(bp)
412 	struct buf *bp;
413 {
414 
415 	if (bp->b_bcount > UHA_MAXXFER)
416 		bp->b_bcount = UHA_MAXXFER;
417 	minphys(bp);
418 }
419 
420 /*
421  * start a scsi operation given the command and the data address.  Also
422  * needs the unit, target and lu.
423  */
424 
425 void
426 uha_scsipi_request(chan, req, arg)
427 	struct scsipi_channel *chan;
428 	scsipi_adapter_req_t req;
429 	void *arg;
430 {
431 	struct scsipi_xfer *xs;
432 	struct scsipi_periph *periph;
433 	struct uha_softc *sc = (void *)chan->chan_adapter->adapt_dev;
434 	bus_dma_tag_t dmat = sc->sc_dmat;
435 	struct uha_mscp *mscp;
436 	int error, seg, flags, s;
437 
438 
439 	switch (req) {
440 	case ADAPTER_REQ_RUN_XFER:
441 		xs = arg;
442 		periph = xs->xs_periph;
443 		flags = xs->xs_control;
444 
445 		SC_DEBUG(periph, SCSIPI_DB2, ("uha_scsipi_request\n"));
446 
447 		/* Get an MSCP to use. */
448 		mscp = uha_get_mscp(sc);
449 #ifdef DIAGNOSTIC
450 		/*
451 		 * This should never happen as we track the resources
452 		 * in the mid-layer.
453 		 */
454 		if (mscp == NULL) {
455 			scsipi_printaddr(periph);
456 			printf("unable to allocate mscp\n");
457 			panic("uha_scsipi_request");
458 		}
459 #endif
460 
461 		mscp->xs = xs;
462 		mscp->timeout = xs->timeout;
463 
464 		/*
465 		 * Put all the arguments for the xfer in the mscp
466 		 */
467 		if (flags & XS_CTL_RESET) {
468 			mscp->opcode = UHA_SDR;
469 			mscp->ca = 0x01;
470 		} else {
471 			if (xs->cmdlen > sizeof(mscp->scsi_cmd)) {
472 				printf("%s: cmdlen %d too large for MSCP\n",
473 				    sc->sc_dev.dv_xname, xs->cmdlen);
474 				xs->error = XS_DRIVER_STUFFUP;
475 				goto out_bad;
476 			}
477 			mscp->opcode = UHA_TSP;
478 			/* XXX Not for tapes. */
479 			mscp->ca = 0x01;
480 			memcpy(&mscp->scsi_cmd, xs->cmd, mscp->scsi_cmd_length);
481 		}
482 		mscp->xdir = UHA_SDET;
483 		mscp->dcn = 0x00;
484 		mscp->chan = 0x00;
485 		mscp->target = periph->periph_target;
486 		mscp->lun = periph->periph_lun;
487 		mscp->scsi_cmd_length = xs->cmdlen;
488 		mscp->sense_ptr = sc->sc_dmamap_mscp->dm_segs[0].ds_addr +
489 		    UHA_MSCP_OFF(mscp) + offsetof(struct uha_mscp, mscp_sense);
490 		mscp->req_sense_length = sizeof(mscp->mscp_sense);
491 		mscp->host_stat = 0x00;
492 		mscp->target_stat = 0x00;
493 
494 		if (xs->datalen) {
495 			seg = 0;
496 #ifdef	TFS
497 			if (flags & SCSI_DATA_UIO) {
498 				error = bus_dmamap_load_uio(dmat,
499 				    mscp->dmamap_xfer, (struct uio *)xs->data,
500 				    ((flags & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT :
501 				     BUS_DMA_WAITOK) | BUS_DMA_STREAMING |
502 				     ((flags & XS_CTL_DATA_IN) ? BUS_DMA_READ :
503 				      BUS_DMA_WRITE));
504 			} else
505 #endif /*TFS */
506 			{
507 				error = bus_dmamap_load(dmat,
508 				    mscp->dmamap_xfer, xs->data, xs->datalen,
509 				    NULL,
510 				    ((flags & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT :
511 				     BUS_DMA_WAITOK) | BUS_DMA_STREAMING |
512 				     ((flags & XS_CTL_DATA_IN) ? BUS_DMA_READ :
513 				      BUS_DMA_WRITE));
514 			}
515 
516 			switch (error) {
517 			case 0:
518 				break;
519 
520 			case ENOMEM:
521 			case EAGAIN:
522 				xs->error = XS_RESOURCE_SHORTAGE;
523 				goto out_bad;
524 
525 			default:
526 				xs->error = XS_DRIVER_STUFFUP;
527 				printf("%s: error %d loading DMA map\n",
528 				    sc->sc_dev.dv_xname, error);
529  out_bad:
530 				uha_free_mscp(sc, mscp);
531 				scsipi_done(xs);
532 				return;
533 			}
534 
535 			bus_dmamap_sync(dmat, mscp->dmamap_xfer, 0,
536 			    mscp->dmamap_xfer->dm_mapsize,
537 			    (flags & XS_CTL_DATA_IN) ? BUS_DMASYNC_PREREAD :
538 			    BUS_DMASYNC_PREWRITE);
539 
540 			/*
541 			 * Load the hardware scatter/gather map with the
542 			 * contents of the DMA map.
543 			 */
544 			for (seg = 0;
545 			     seg < mscp->dmamap_xfer->dm_nsegs; seg++) {
546 				mscp->uha_dma[seg].seg_addr =
547 				    mscp->dmamap_xfer->dm_segs[seg].ds_addr;
548 				mscp->uha_dma[seg].seg_len =
549 				    mscp->dmamap_xfer->dm_segs[seg].ds_len;
550 			}
551 
552 			mscp->data_addr =
553 			    sc->sc_dmamap_mscp->dm_segs[0].ds_addr +
554 			    UHA_MSCP_OFF(mscp) + offsetof(struct uha_mscp,
555 			    uha_dma);
556 			mscp->data_length = xs->datalen;
557 			mscp->sgth = 0x01;
558 			mscp->sg_num = seg;
559 		} else {		/* No data xfer, use non S/G values */
560 			mscp->data_addr = (physaddr)0;
561 			mscp->data_length = 0;
562 			mscp->sgth = 0x00;
563 			mscp->sg_num = 0;
564 		}
565 		mscp->link_id = 0;
566 		mscp->link_addr = (physaddr)0;
567 
568 		bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_mscp,
569 		    UHA_MSCP_OFF(mscp), sizeof(struct uha_mscp),
570 		    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
571 
572 		s = splbio();
573 		(sc->start_mbox)(sc, mscp);
574 		splx(s);
575 
576 		if ((flags & XS_CTL_POLL) == 0)
577 			return;
578 
579 		/*
580 		 * If we can't use interrupts, poll on completion
581 		 */
582 		if ((sc->poll)(sc, xs, mscp->timeout)) {
583 			uha_timeout(mscp);
584 			if ((sc->poll)(sc, xs, mscp->timeout))
585 				uha_timeout(mscp);
586 		}
587 		return;
588 
589 	case ADAPTER_REQ_GROW_RESOURCES:
590 		/* XXX Not supported. */
591 		return;
592 
593 	case ADAPTER_REQ_SET_XFER_MODE:
594 		/*
595 		 * We can't really do this (the UltraStor controllers
596 		 * have their own config).
597 		 *
598 		 * XXX How do we query the config?
599 		 */
600 		return;
601 	}
602 }
603 void
604 uha_timeout(arg)
605 	void *arg;
606 {
607 	struct uha_mscp *mscp = arg;
608 	struct scsipi_xfer *xs = mscp->xs;
609 	struct scsipi_periph *periph = xs->xs_periph;
610 	struct uha_softc *sc =
611 	    (void *)periph->periph_channel->chan_adapter->adapt_dev;
612 	int s;
613 
614 	scsipi_printaddr(periph);
615 	printf("timed out");
616 
617 	s = splbio();
618 
619 	if (mscp->flags & MSCP_ABORT) {
620 		/* abort timed out */
621 		printf(" AGAIN\n");
622 		/* XXX Must reset! */
623 	} else {
624 		/* abort the operation that has timed out */
625 		printf("\n");
626 		mscp->xs->error = XS_TIMEOUT;
627 		mscp->timeout = UHA_ABORT_TIMEOUT;
628 		mscp->flags |= MSCP_ABORT;
629 		(sc->start_mbox)(sc, mscp);
630 	}
631 
632 	splx(s);
633 }
634