dev/ic/oosiop.c

139 	struct oosiop_cb *cb;
142 	cb = TAILQ_FIRST(&sc->sc_free_cb);
143 	if (cb)
144 		TAILQ_REMOVE(&sc->sc_free_cb, cb, chain);
147 	return (cb);
154 	struct oosiop_cb *cb = xcb;
157 	TAILQ_INSERT_TAIL(&sc->sc_free_cb, cb, chain);
167 	struct oosiop_cb *cb;
206 	/* Use first cb to reselection msgin buffer */
207 	cb = TAILQ_FIRST(&sc->sc_free_cb);
208 	sc->sc_reselbuf = cb->xferdma->dm_segs[0].ds_addr +
276 	struct oosiop_cb *cb;
285 	cb = mallocarray(ncb, sizeof(*cb), M_DEVBUF, M_NOWAIT | M_ZERO);
286 	if (cb == NULL) {
287 		printf(": failed to allocate cb memory\n");
311 		    0, BUS_DMA_NOWAIT, &cb->cmddma);
319 		    &cb->datadma);
327 		    0, BUS_DMA_NOWAIT, &cb->xferdma);
333 		err = bus_dmamap_load(sc->sc_dmat, cb->xferdma, xfer,
340 		cb->xfer = xfer;
343 		TAILQ_INSERT_TAIL(&sc->sc_free_cb, cb, chain);
346 		cb++;
466 oosiop_setup_sgdma(struct oosiop_softc *sc, struct oosiop_cb *cb)
468 	struct oosiop_xfer *xfer = cb->xfer;
469 	struct scsi_xfer *xs = cb->xs;
472 	OOSIOP_XFERSCR_SYNC(sc, cb,
475 	off = cb->curdp;
479 		for (i = 0; i < cb->datadma->dm_nsegs; i++) {
480 			if (off < cb->datadma->dm_segs[i].ds_len)
482 			off -= cb->datadma->dm_segs[i].ds_len;
488 			while (i < cb->datadma->dm_nsegs) {
491 				    (cb->datadma->dm_segs[i].ds_len - off));
493 				    htole32(cb->datadma->dm_segs[i].ds_addr +
505 			while (i < cb->datadma->dm_nsegs) {
508 				    (cb->datadma->dm_segs[i].ds_len - off));
510 				    htole32(cb->datadma->dm_segs[i].ds_addr +
529 	OOSIOP_XFERSCR_SYNC(sc, cb,
539 	struct oosiop_cb *cb;
542 	cb = sc->sc_curcb;
543 	xferbase = cb->xferdma->dm_segs[0].ds_addr;
547 	oosiop_fixup_select(sc, Ent_p_select, cb->id);
556 	oosiop_fixup_move(sc, Ent_p_msgout_move, cb->msgoutlen, xferbase +
560 	oosiop_fixup_move(sc, Ent_p_cmdout_move, cb->cmdlen,
561 	    cb->cmddma->dm_segs[0].ds_addr);
595 	struct oosiop_cb *cb;
599 	cb = sc->sc_curcb;
600 	if (cb == NULL)
607 	n = dsp - cb->xferdma->dm_segs[0].ds_addr - 8;
612 		OOSIOP_DINSCR_SYNC(sc, cb,
615 			len += letoh32(cb->xfer->datain_scr[i * 2]) &
617 		OOSIOP_DINSCR_SYNC(sc, cb,
624 		OOSIOP_DOUTSCR_SYNC(sc, cb,
627 			len += letoh32(cb->xfer->dataout_scr[i * 2]) &
629 		OOSIOP_DOUTSCR_SYNC(sc, cb,
639 		if ((sc->sc_tgt[cb->id].sxfer != 0) &&
653 		cb->curdp += len;
654 		oosiop_setup_sgdma(sc, cb);
722 	struct oosiop_cb *cb;
729 	cb = xs->io;
731 	cb->xs = xs;
732 	cb->xsflags = xs->flags;
733 	cb->cmdlen = xs->cmdlen;
734 	cb->datalen = 0;
735 	cb->flags = 0;
736 	cb->id = xs->sc_link->target;
737 	cb->lun = xs->sc_link->lun;
738 	xfer = cb->xfer;
741 	err = bus_dmamap_load(sc->sc_dmat, cb->cmddma, &xs->cmd,
752 	bus_dmamap_sync(sc->sc_dmat, cb->cmddma, 0, xs->cmdlen,
757 		cb->datalen = xs->datalen;
758 		err = bus_dmamap_load(sc->sc_dmat, cb->datadma,
768 			bus_dmamap_unload(sc->sc_dmat, cb->cmddma);
773 		bus_dmamap_sync(sc->sc_dmat, cb->datadma,
784 	timeout_set(&xs->stimeout, oosiop_timeout, cb);
786 	oosiop_setup(sc, cb);
790 	TAILQ_INSERT_TAIL(&sc->sc_cbq, cb, chain);
808 		oosiop_poll(sc, cb);
812 oosiop_poll(struct oosiop_softc *sc, struct oosiop_cb *cb)
814 	struct scsi_xfer *xs = cb->xs;
846 oosiop_setup(struct oosiop_softc *sc, struct oosiop_cb *cb)
848 	struct oosiop_xfer *xfer = cb->xfer;
850 	cb->curdp = 0;
851 	cb->savedp = 0;
853 	oosiop_setup_sgdma(sc, cb);
856 	OOSIOP_XFERMSG_SYNC(sc, cb,
858 	xfer->msgout[0] = MSG_IDENTIFY(cb->lun,
859 	    (cb->xs->cmd.opcode != REQUEST_SENSE));
860 	cb->msgoutlen = 1;
862 	if (sc->sc_tgt[cb->id].flags & TGTF_SYNCNEG) {
863 		sc->sc_tgt[cb->id].flags &= ~TGTF_SYNCNEG;
870 		cb->msgoutlen = 6;
871 		sc->sc_tgt[cb->id].flags |= TGTF_WAITSDTR;
874 	OOSIOP_XFERMSG_SYNC(sc, cb,
879 oosiop_done(struct oosiop_softc *sc, struct oosiop_cb *cb)
885 	xs = cb->xs;
893 	autosense = cb->flags & CBF_AUTOSENSE;
894 	cb->flags &= ~CBF_AUTOSENSE;
896 	bus_dmamap_sync(sc->sc_dmat, cb->cmddma, 0, cb->cmdlen,
898 	bus_dmamap_unload(sc->sc_dmat, cb->cmddma);
900 	if (cb->xsflags & (SCSI_DATA_IN | SCSI_DATA_OUT)) {
901 		bus_dmamap_sync(sc->sc_dmat, cb->datadma, 0, cb->datalen,
902 		    (cb->xsflags & SCSI_DATA_IN) ?
904 		bus_dmamap_unload(sc->sc_dmat, cb->datadma);
909 	xs->status = cb->xfer->status;
911 	if (cb->flags & CBF_SELTOUT)
913 	else if (cb->flags & CBF_TIMEOUT)
929 			cb->flags |= CBF_AUTOSENSE;
944 	if ((cb->flags & CBF_AUTOSENSE) == 0) {
950 		if (cb == sc->sc_curcb)
952 		if (cb == sc->sc_lastcb)
954 		sc->sc_tgt[cb->id].nexus = NULL;
963 		cb->cmdlen = cmd->length = sizeof(xs->sense);
965 		cb->xsflags &= SCSI_POLL | SCSI_NOSLEEP;
966 		cb->xsflags |= SCSI_DATA_IN;
967 		cb->datalen = sizeof xs->sense;
970 		err = bus_dmamap_load(sc->sc_dmat, cb->cmddma, cmd,
971 		    cb->cmdlen, NULL,
979 		bus_dmamap_sync(sc->sc_dmat, cb->cmddma, 0, cb->cmdlen,
983 		err = bus_dmamap_load(sc->sc_dmat, cb->datadma,
990 			bus_dmamap_unload(sc->sc_dmat, cb->cmddma);
993 		bus_dmamap_sync(sc->sc_dmat, cb->datadma,
996 		oosiop_setup(sc, cb);
998 		TAILQ_INSERT_HEAD(&sc->sc_cbq, cb, chain);
999 		if ((cb->xs->flags & SCSI_POLL) == 0) {
1009 	struct oosiop_cb *cb = arg;
1010 	struct scsi_xfer *xs = cb->xs;
1021 	cb->flags |= CBF_TIMEOUT;
1022 	oosiop_done(sc, cb);
1129 	struct oosiop_cb *cb;
1240 		cb = sc->sc_curcb = TAILQ_FIRST(&sc->sc_cbq);
1241 		TAILQ_REMOVE(&sc->sc_cbq, cb, chain);
1242 		sc->sc_tgt[cb->id].nexus = cb;
1246 		sc->sc_lastcb = cb;
1250 		if ((cb->xs->flags & SCSI_POLL) == 0) {
1252 			timeout_add_msec(&cb->xs->stimeout, cb->xs->timeout);
1265 	struct oosiop_cb *cb;
1271 	cb = sc->sc_curcb;
1276 		if (cb)
1277 			oosiop_done(sc, cb);
1281 		if (cb)
1282 			oosiop_msgin(sc, cb);
1290 		    cb->xferdma->dm_segs[0].ds_addr +
1310 		if (cb) {
1312 			sc->sc_tgt[cb->id].nexus = NULL;
1313 			TAILQ_INSERT_HEAD(&sc->sc_cbq, cb, chain);
1320 		cb = sc->sc_tgt[sc->sc_resid].nexus;
1322 		if (MSG_ISIDENTIFY(resmsg) && cb &&
1323 		    (resmsg & MSG_IDENTIFY_LUNMASK) == cb->lun) {
1324 			sc->sc_curcb = cb;
1325 			if (cb != sc->sc_lastcb) {
1328 				sc->sc_lastcb = cb;
1330 			if (cb->curdp != cb->savedp) {
1331 				cb->curdp = cb->savedp;
1332 				oosiop_setup_sgdma(sc, cb);
1376 oosiop_msgin(struct oosiop_softc *sc, struct oosiop_cb *cb)
1381 	xfer = cb->xfer;
1385 	OOSIOP_XFERMSG_SYNC(sc, cb,
1392 			if (sc->sc_tgt[cb->id].flags & TGTF_WAITSDTR) {
1394 				sc->sc_tgt[cb->id].flags &= ~TGTF_WAITSDTR;
1406 				cb->msgoutlen = 5;
1409 			oosiop_set_syncparam(sc, cb->id, (int)xfer->msgin[3],
1417 			cb->msgoutlen = 1;
1424 		cb->savedp = cb->curdp;
1428 		if (cb->curdp != cb->savedp) {
1429 			cb->curdp = cb->savedp;
1430 			oosiop_setup_sgdma(sc, cb);
1435 		if (sc->sc_tgt[cb->id].flags & TGTF_WAITSDTR) {
1437 			sc->sc_tgt[cb->id].flags &= ~TGTF_WAITSDTR;
1438 			oosiop_set_syncparam(sc, cb->id, 0, 0);
1446 		cb->msgoutlen = 1;
1450 	OOSIOP_XFERMSG_SYNC(sc, cb,
1455 		oosiop_fixup_move(sc, Ent_p_msgout_move, cb->msgoutlen,
1456 		    cb->xferdma->dm_segs[0].ds_addr +