dev/ic/ciss.c

87 static void	ciss_put_ccb(struct ciss_ccb *ccb);
88 static int	ciss_cmd(struct ciss_ccb *ccb, int flags, int wait);
89 static int	ciss_done(struct ciss_ccb *ccb);
90 static int	ciss_error(struct ciss_ccb *ccb);
109 	struct ciss_ccb *ccb;
112 	if ((ccb = TAILQ_LAST(&sc->sc_free_ccb, ciss_queue_head))) {
113 		TAILQ_REMOVE(&sc->sc_free_ccb, ccb, ccb_link);
114 		ccb->ccb_state = CISS_CCB_READY;
117 	return ccb;
121 ciss_put_ccb(struct ciss_ccb *ccb)
123 	struct ciss_softc *sc = ccb->ccb_sc;
125 	ccb->ccb_state = CISS_CCB_FREE;
127 	TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_link);
134 	struct ciss_ccb *ccb;
218 	    sizeof(ccb->ccb_cmd.sgl[0]) * (sc->maxsg - 1);
256 		ccb = (struct ciss_ccb *) ((char *)sc->ccbs + i * sc->ccblen);
257 		cmd = &ccb->ccb_cmd;
260 		ccb->ccb_sc = sc;
261 		ccb->ccb_cmdpa = pa + offsetof(struct ciss_ccb, ccb_cmd);
262 		ccb->ccb_state = CISS_CCB_FREE;
268 		cmd->err_len = htole32(sizeof(ccb->ccb_err));
274 		    &ccb->ccb_dmamap)))
277 		TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_link);
281 		printf(": cannot create ccb#%d dmamap (%d)\n", i, error);
367 	/* XXX Reserve some ccb's for sensor and bioctl. */
441 ciss_cmd(struct ciss_ccb *ccb, int flags, int wait)
443 	struct ciss_softc *sc = ccb->ccb_sc;
444 	struct ciss_cmd *cmd = &ccb->ccb_cmd;
446 	bus_dmamap_t dmap = ccb->ccb_dmamap;
450 	if (ccb->ccb_state != CISS_CCB_READY) {
451 		printf("%s: ccb %d not ready state=0x%x\n", device_xname(&sc->sc_dev),
452 		    cmd->id, ccb->ccb_state);
456 	if (ccb->ccb_data) {
459 		if ((error = bus_dmamap_load(sc->sc_dmat, dmap, ccb->ccb_data,
460 		    ccb->ccb_len, NULL, flags))) {
465 			ciss_put_ccb(ccb);
472 		    ccb->ccb_data, ccb->ccb_len, sgd->ds_addr, sgd->ds_len));
494 	memset(&ccb->ccb_err, 0, sizeof(ccb->ccb_err));
504 	TAILQ_INSERT_TAIL(&sc->sc_ccbq, ccb, ccb_link);
506 	ccb->ccb_state = CISS_CCB_ONQ;
508 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, CISS_INQ, ccb->ccb_cmdpa);
514 		i = ccb->ccb_xs? ccb->ccb_xs->timeout : 60000;
520 				ccb->ccb_state = CISS_CCB_POLL;
529 				if (ccb->ccb_state != CISS_CCB_ONQ) {
536 				ccb1 = ccb;
559 			if (ccb1 == ccb)
564 		if (ccb->ccb_state != CISS_CCB_FREE) {
565 			ccb->ccb_err.cmd_stat = CISS_ERR_TMO;
566 			error = ciss_done(ccb);
570 		    ccb->ccb_err.cmd_stat, ccb->ccb_err.scsi_stat));
581 ciss_done(struct ciss_ccb *ccb)
583 	struct ciss_softc *sc = ccb->ccb_sc;
584 	struct scsipi_xfer *xs = ccb->ccb_xs;
588 	CISS_DPRINTF(CISS_D_CMD, ("ciss_done(%p) ", ccb));
590 	if (ccb->ccb_state != CISS_CCB_ONQ) {
591 		printf("%s: unqueued ccb %p ready, state=0x%x\n",
592 		    device_xname(&sc->sc_dev), ccb, ccb->ccb_state);
596 	ccb->ccb_state = CISS_CCB_READY;
598 	TAILQ_REMOVE(&sc->sc_ccbq, ccb, ccb_link);
601 	if (ccb->ccb_cmd.id & CISS_CMD_ERR)
602 		error = ciss_error(ccb);
604 	cmd = &ccb->ccb_cmd;
605 	if (ccb->ccb_data) {
606 		bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap, 0,
607 		    ccb->ccb_dmamap->dm_mapsize, (cmd->flags & CISS_CDB_IN) ?
609 		bus_dmamap_unload(sc->sc_dmat, ccb->ccb_dmamap);
610 		ccb->ccb_xs = NULL;
611 		ccb->ccb_data = NULL;
614 	ciss_put_ccb(ccb);
634 ciss_error(struct ciss_ccb *ccb)
636 	struct ciss_softc *sc = ccb->ccb_sc;
637 	struct ciss_error *err = &ccb->ccb_err;
638 	struct scsipi_xfer *xs = ccb->ccb_xs;
649 			    device_xname(&sc->sc_dev), ccb->ccb_cmd.id,
701 	ccb->ccb_cmd.id &= htole32(~3);
709 	struct ciss_ccb *ccb;
712 	ccb = ciss_get_ccb(sc);
713 	ccb->ccb_len = sizeof(*inq);
714 	ccb->ccb_data = inq;
715 	ccb->ccb_xs = NULL;
716 	cmd = &ccb->ccb_cmd;
728 	return ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP);
734 	struct ciss_ccb *ccb;
744 	ccb = ciss_get_ccb(sc);
745 	ccb->ccb_len = total;
746 	ccb->ccb_data = lmap;
747 	ccb->ccb_xs = NULL;
748 	cmd = &ccb->ccb_cmd;
759 	rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP);
776 	struct ciss_ccb *ccb;
786 	ccb = ciss_get_ccb(sc);
787 	ccb->ccb_len = sizeof(*flush);
788 	ccb->ccb_data = flush;
789 	ccb->ccb_xs = NULL;
790 	cmd = &ccb->ccb_cmd;
802 	rv = ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL|XS_CTL_NOSLEEP);
811 	struct ciss_ccb *ccb;
814 	ccb = ciss_get_ccb(sc);
815 	if (ccb == NULL)
817 	ccb->ccb_len = sizeof(*id);
818 	ccb->ccb_data = id;
819 	ccb->ccb_xs = NULL;
820 	cmd = &ccb->ccb_cmd;
833 	return ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL | sc->sc_waitflag);
839 	struct ciss_ccb *ccb;
842 	ccb = ciss_get_ccb(sc);
843 	if (ccb == NULL)
845 	ccb->ccb_len = sizeof(*stat);
846 	ccb->ccb_data = stat;
847 	ccb->ccb_xs = NULL;
848 	cmd = &ccb->ccb_cmd;
861 	return ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL | sc->sc_waitflag);
867 	struct ciss_ccb *ccb;
870 	ccb = ciss_get_ccb(sc);
871 	if (ccb == NULL)
873 	ccb->ccb_len = sizeof(*id);
874 	ccb->ccb_data = id;
875 	ccb->ccb_xs = NULL;
876 	cmd = &ccb->ccb_cmd;
889 	return ciss_cmd(ccb, BUS_DMA_NOWAIT, wait);
942 	struct ciss_ccb *ccb;
966 		ccb = ciss_get_ccb(sc);
967 		cmd = &ccb->ccb_cmd;
968 		ccb->ccb_len = xs->datalen;
969 		ccb->ccb_data = xs->data;
970 		ccb->ccb_xs = xs;
982 		if (ciss_cmd(ccb, BUS_DMA_WAITOK,
1019 	struct ciss_ccb *ccb;
1046 		ccb = ciss_get_ccb(sc);
1047 		cmd = &ccb->ccb_cmd;
1048 		ccb->ccb_len = xs->datalen;
1049 		ccb->ccb_data = xs->data;
1050 		ccb->ccb_xs = xs;
1066 		if (ciss_cmd(ccb, BUS_DMA_WAITOK,
1097 	struct ciss_ccb *ccb;
1109 		ccb = (struct ciss_ccb *) ((char *)sc->ccbs + (id >> 2) * sc->ccblen);
1110 		ccb->ccb_cmd.id = htole32(id);
1111 		if (ccb->ccb_state == CISS_CCB_POLL) {
1112 			ccb->ccb_state = CISS_CCB_ONQ;
1117 			ciss_done(ccb);
1372 	struct ciss_ccb *ccb;
1387 	ccb = ciss_get_ccb(sc);
1388 	if (ccb == NULL)
1390 	ccb->ccb_len = sizeof(*blink);
1391 	ccb->ccb_data = blink;
1392 	ccb->ccb_xs = NULL;
1393 	cmd = &ccb->ccb_cmd;
1405 	return ciss_cmd(ccb, BUS_DMA_NOWAIT, XS_CTL_POLL);