dev/ic/aha.c

284 	struct aha_ccb *ccb;
314 		ccb = aha_ccb_phys_kv(sc, phystol(wmbi->ccb_addr));
315 		if (!ccb) {
316 			printf("%s: bad mbi ccb pointer; skipping\n",
322 		    AHA_CCB_OFF(ccb), sizeof(struct aha_ccb),
327 			u_char *cp = ccb->scsi_cmd;
332 			printf("ccb addr = %p\n", ccb);
339 			if ((ccb->flags & CCB_ABORT) != 0) {
366 		callout_stop(&ccb->xs->xs_callout);
367 		aha_done(sc, ccb);
432 aha_reset_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
435 	ccb->flags = 0;
439  * A ccb is put onto the free list.
442 aha_free_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
447 	aha_reset_ccb(sc, ccb);
448 	TAILQ_INSERT_HEAD(&sc->sc_free_ccb, ccb, chain);
453 aha_init_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
462 	    0, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW, &ccb->dmamap_xfer);
465 		    "unable to create ccb DMA map, error = %d\n",
474 	ccb->hashkey = sc->sc_dmamap_control->dm_segs[0].ds_addr +
475 	    AHA_CCB_OFF(ccb);
476 	hashnum = CCB_HASH(ccb->hashkey);
477 	ccb->nexthash = sc->sc_ccbhash[hashnum];
478 	sc->sc_ccbhash[hashnum] = ccb;
479 	aha_reset_ccb(sc, ccb);
490 	struct aha_ccb *ccb;
495 		ccb = &ccbstore[i];
496 		if ((error = aha_init_ccb(sc, ccb)) != 0) {
498 			    "unable to initialize ccb, error = %d\n",
502 		TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, chain);
509  * Get a free ccb
517 	struct aha_ccb *ccb;
521 	ccb = TAILQ_FIRST(&sc->sc_free_ccb);
522 	if (ccb != NULL) {
523 		TAILQ_REMOVE(&sc->sc_free_ccb, ccb, chain);
524 		ccb->flags |= CCB_ALLOC;
527 	return (ccb);
531  * Given a physical address, find the ccb that it corresponds to.
537 	struct aha_ccb *ccb = sc->sc_ccbhash[hashnum];
539 	while (ccb) {
540 		if (ccb->hashkey == ccb_phys)
542 		ccb = ccb->nexthash;
544 	return (ccb);
551 aha_queue_ccb(struct aha_softc *sc, struct aha_ccb *ccb)
554 	TAILQ_INSERT_TAIL(&sc->sc_waiting_ccb, ccb, chain);
566 	struct aha_ccb *ccb;
579 		ccb = aha_ccb_phys_kv(sc, phystol(wmbo->ccb_addr));
580 		ccb->flags &= ~CCB_SENDING;
599 	struct aha_ccb *ccb;
603 	while ((ccb = sc->sc_waiting_ccb.tqh_first) != NULL) {
618 		TAILQ_REMOVE(&sc->sc_waiting_ccb, ccb, chain);
620 		ccb->flags |= CCB_SENDING;
623 		/* Link ccb to mbo. */
625 		    AHA_CCB_OFF(ccb), wmbo->ccb_addr);
626 		if (ccb->flags & CCB_ABORT)
638 		if ((ccb->xs->xs_control & XS_CTL_POLL) == 0)
639 			callout_reset(&ccb->xs->xs_callout,
640 			    mstohz(ccb->timeout), aha_timeout, ccb);
650  * We have a ccb which has been processed by the
655 aha_done(struct aha_softc *sc, struct aha_ccb *ccb)
659 	struct scsipi_xfer *xs = ccb->xs;
668 		bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0,
669 		    ccb->dmamap_xfer->dm_mapsize,
672 		bus_dmamap_unload(dmat, ccb->dmamap_xfer);
680 	if (ccb->flags & CCB_SENDING) {
681 		printf("%s: exiting ccb still in transit!\n",
687 	if ((ccb->flags & CCB_ALLOC) == 0) {
688 		printf("%s: exiting ccb not allocated!\n",
694 		if (ccb->host_stat != AHA_OK) {
695 			switch (ccb->host_stat) {
701 				    device_xname(sc->sc_dev), ccb->host_stat);
705 		} else if (ccb->target_stat != SCSI_OK) {
706 			switch (ccb->target_stat) {
708 				s1 = (struct scsi_sense_data *) (((char *) (&ccb->scsi_cmd)) +
709 				    ccb->scsi_cmd_length);
719 				    device_xname(sc->sc_dev), ccb->target_stat);
726 	aha_free_ccb(sc, ccb);
1128 	struct aha_ccb *ccb;
1141 		ccb = aha_get_ccb(sc);
1147 		if (ccb == NULL) {
1149 			printf("unable to allocate ccb\n");
1154 		ccb->xs = xs;
1155 		ccb->timeout = xs->timeout;
1158 		 * Put all the arguments for the xfer in the ccb
1161 			ccb->opcode = AHA_RESET_CCB;
1162 			ccb->scsi_cmd_length = 0;
1165 			if (xs->cmdlen > sizeof(ccb->scsi_cmd)) {
1171 			ccb->opcode = (xs->datalen ? AHA_INIT_SCAT_GATH_CCB
1173 			memcpy(&ccb->scsi_cmd, xs->cmd,
1174 			    ccb->scsi_cmd_length = xs->cmdlen);
1184 				    ccb->dmamap_xfer, (struct uio *)xs->data,
1193 				    ccb->dmamap_xfer, xs->data, xs->datalen,
1222 				aha_free_ccb(sc, ccb);
1227 			bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0,
1228 			    ccb->dmamap_xfer->dm_mapsize,
1236 			for (seg = 0; seg < ccb->dmamap_xfer->dm_nsegs; seg++) {
1237 				ltophys(ccb->dmamap_xfer->dm_segs[seg].ds_addr,
1238 				    ccb->scat_gath[seg].seg_addr);
1239 				ltophys(ccb->dmamap_xfer->dm_segs[seg].ds_len,
1240 				    ccb->scat_gath[seg].seg_len);
1244 			    AHA_CCB_OFF(ccb) +
1246 			    ccb->data_addr);
1247 			ltophys(ccb->dmamap_xfer->dm_nsegs *
1248 			    sizeof(struct aha_scat_gath), ccb->data_length);
1253 			ltophys(0, ccb->data_addr);
1254 			ltophys(0, ccb->data_length);
1257 		ccb->data_out = 0;
1258 		ccb->data_in = 0;
1259 		ccb->target = periph->periph_target;
1260 		ccb->lun = periph->periph_lun;
1261 		ccb->req_sense_length = sizeof(ccb->scsi_sense);
1262 		ccb->host_stat = 0x00;
1263 		ccb->target_stat = 0x00;
1264 		ccb->link_id = 0;
1265 		ltophys(0, ccb->link_addr);
1268 		    AHA_CCB_OFF(ccb), sizeof(struct aha_ccb),
1272 		aha_queue_ccb(sc, ccb);
1280 		if (aha_poll(sc, xs, ccb->timeout)) {
1281 			aha_timeout(ccb);
1282 			if (aha_poll(sc, xs, ccb->timeout))
1283 				aha_timeout(ccb);
1330 	struct aha_ccb *ccb = arg;
1331 	struct scsipi_xfer *xs = ccb->xs;
1344 	 * If The ccb's mbx is not free, then the board has gone south?
1347 	if (ccb->flags & CCB_SENDING) {
1358 	if (ccb->flags & CCB_ABORT) {
1365 		ccb->xs->error = XS_TIMEOUT;
1366 		ccb->timeout = AHA_ABORT_TIMEOUT;
1367 		ccb->flags |= CCB_ABORT;
1368 		aha_queue_ccb(sc, ccb);