dev/ic/aha.c

287 	struct aha_ccb *ccb;
317 		ccb = aha_ccb_phys_kv(sc, phystol(wmbi->ccb_addr));
318 		if (!ccb) {
319 			printf("%s: bad mbi ccb pointer; skipping\n",
325 		    AHA_CCB_OFF(ccb), sizeof(struct aha_ccb),
330 			u_char *cp = ccb->scsi_cmd;
335 			printf("ccb addr = %p\n", ccb);
342 			if ((ccb->flags & CCB_ABORT) != 0) {
369 		callout_stop(&ccb->xs->xs_callout);
370 		aha_done(sc, ccb);
435 aha_reset_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
438 	ccb->flags = 0;
442  * A ccb is put onto the free list.
445 aha_free_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
450 	aha_reset_ccb(sc, ccb);
451 	TAILQ_INSERT_HEAD(&sc->sc_free_ccb, ccb, chain);
456 aha_init_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
465 	    0, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW, &ccb->dmamap_xfer);
468 		    "unable to create ccb DMA map, error = %d\n",
477 	ccb->hashkey = sc->sc_dmamap_control->dm_segs[0].ds_addr +
478 	    AHA_CCB_OFF(ccb);
479 	hashnum = CCB_HASH(ccb->hashkey);
480 	ccb->nexthash = sc->sc_ccbhash[hashnum];
481 	sc->sc_ccbhash[hashnum] = ccb;
482 	aha_reset_ccb(sc, ccb);
493 	struct aha_ccb *ccb;
498 		ccb = &ccbstore[i];
499 		if ((error = aha_init_ccb(sc, ccb)) != 0) {
501 			    "unable to initialize ccb, error = %d\n",
505 		TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, chain);
512  * Get a free ccb
520 	struct aha_ccb *ccb;
524 	ccb = TAILQ_FIRST(&sc->sc_free_ccb);
525 	if (ccb != NULL) {
526 		TAILQ_REMOVE(&sc->sc_free_ccb, ccb, chain);
527 		ccb->flags |= CCB_ALLOC;
530 	return (ccb);
534  * Given a physical address, find the ccb that it corresponds to.
540 	struct aha_ccb *ccb = sc->sc_ccbhash[hashnum];
542 	while (ccb) {
543 		if (ccb->hashkey == ccb_phys)
545 		ccb = ccb->nexthash;
547 	return (ccb);
554 aha_queue_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
557 	TAILQ_INSERT_TAIL(&sc->sc_waiting_ccb, ccb, chain);
569 	struct aha_ccb *ccb;
582 		ccb = aha_ccb_phys_kv(sc, phystol(wmbo->ccb_addr));
583 		ccb->flags &= ~CCB_SENDING;
602 	struct aha_ccb *ccb;
606 	while ((ccb = sc->sc_waiting_ccb.tqh_first) != NULL) {
621 		TAILQ_REMOVE(&sc->sc_waiting_ccb, ccb, chain);
623 		ccb->flags |= CCB_SENDING;
626 		/* Link ccb to mbo. */
628 		    AHA_CCB_OFF(ccb), wmbo->ccb_addr);
629 		if (ccb->flags & CCB_ABORT)
641 		if ((ccb->xs->xs_control & XS_CTL_POLL) == 0)
642 			callout_reset(&ccb->xs->xs_callout,
643 			    mstohz(ccb->timeout), aha_timeout, ccb);
653  * We have a ccb which has been processed by the
658 aha_done(struct aha_softc *sc, struct aha_ccb *ccb)
662 	struct scsipi_xfer *xs = ccb->xs;
671 		bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0,
672 		    ccb->dmamap_xfer->dm_mapsize,
675 		bus_dmamap_unload(dmat, ccb->dmamap_xfer);
683 	if (ccb->flags & CCB_SENDING) {
684 		printf("%s: exiting ccb still in transit!\n",
690 	if ((ccb->flags & CCB_ALLOC) == 0) {
691 		printf("%s: exiting ccb not allocated!\n",
697 		if (ccb->host_stat != AHA_OK) {
698 			switch (ccb->host_stat) {
704 				    device_xname(sc->sc_dev), ccb->host_stat);
708 		} else if (ccb->target_stat != SCSI_OK) {
709 			switch (ccb->target_stat) {
712 				    (((char *)(&ccb->scsi_cmd)) +
713 				    ccb->scsi_cmd_length);
723 				    device_xname(sc->sc_dev), ccb->target_stat);
730 	aha_free_ccb(sc, ccb);
1133 	struct aha_ccb *ccb;
1146 		ccb = aha_get_ccb(sc);
1152 		if (ccb == NULL) {
1154 			printf("unable to allocate ccb\n");
1159 		ccb->xs = xs;
1160 		ccb->timeout = xs->timeout;
1163 		 * Put all the arguments for the xfer in the ccb
1166 			ccb->opcode = AHA_RESET_CCB;
1167 			ccb->scsi_cmd_length = 0;
1170 			if (xs->cmdlen > sizeof(ccb->scsi_cmd)) {
1176 			ccb->opcode = (xs->datalen ? AHA_INIT_SCAT_GATH_CCB
1178 			memcpy(&ccb->scsi_cmd, xs->cmd,
1179 			    ccb->scsi_cmd_length = xs->cmdlen);
1189 				    ccb->dmamap_xfer, (struct uio *)xs->data,
1198 				    ccb->dmamap_xfer, xs->data, xs->datalen,
1227 				aha_free_ccb(sc, ccb);
1232 			bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0,
1233 			    ccb->dmamap_xfer->dm_mapsize,
1241 			for (seg = 0; seg < ccb->dmamap_xfer->dm_nsegs; seg++) {
1242 				ltophys(ccb->dmamap_xfer->dm_segs[seg].ds_addr,
1243 				    ccb->scat_gath[seg].seg_addr);
1244 				ltophys(ccb->dmamap_xfer->dm_segs[seg].ds_len,
1245 				    ccb->scat_gath[seg].seg_len);
1249 			    AHA_CCB_OFF(ccb) +
1251 			    ccb->data_addr);
1252 			ltophys(ccb->dmamap_xfer->dm_nsegs *
1253 			    sizeof(struct aha_scat_gath), ccb->data_length);
1258 			ltophys(0, ccb->data_addr);
1259 			ltophys(0, ccb->data_length);
1262 		ccb->data_out = 0;
1263 		ccb->data_in = 0;
1264 		ccb->target = periph->periph_target;
1265 		ccb->lun = periph->periph_lun;
1266 		ccb->req_sense_length = sizeof(ccb->scsi_sense);
1267 		ccb->host_stat = 0x00;
1268 		ccb->target_stat = 0x00;
1269 		ccb->link_id = 0;
1270 		ltophys(0, ccb->link_addr);
1273 		    AHA_CCB_OFF(ccb), sizeof(struct aha_ccb),
1277 		aha_queue_ccb(sc, ccb);
1285 		if (aha_poll(sc, xs, ccb->timeout)) {
1286 			aha_timeout(ccb);
1287 			if (aha_poll(sc, xs, ccb->timeout))
1288 				aha_timeout(ccb);
1336 	struct aha_ccb *ccb = arg;
1337 	struct scsipi_xfer *xs = ccb->xs;
1350 	 * If The ccb's mbx is not free, then the board has gone south?
1353 	if (ccb->flags & CCB_SENDING) {
1364 	if (ccb->flags & CCB_ABORT) {
1371 		ccb->xs->error = XS_TIMEOUT;
1372 		ccb->timeout = AHA_ABORT_TIMEOUT;
1373 		ccb->flags |= CCB_ABORT;
1374 		aha_queue_ccb(sc, ccb);