dev/ic/aic6360.c

57  * 4) Rewrite it to use malloc for the acb structs instead of static alloc.?
382 	struct aic_acb *acb;
397 		acb = sc->sc_acb;
398 		memset(acb, 0, sizeof(sc->sc_acb));
399 		for (r = 0; r < sizeof(sc->sc_acb) / sizeof(*acb); r++) {
400 			TAILQ_INSERT_TAIL(&sc->free_list, acb, chain);
401 			acb++;
407 		if ((acb = sc->sc_nexus) != NULL) {
408 			acb->xs->error = XS_DRIVER_STUFFUP;
409 			callout_stop(&acb->xs->xs_callout);
410 			aic_done(sc, acb);
412 		while ((acb = sc->nexus_list.tqh_first) != NULL) {
413 			acb->xs->error = XS_DRIVER_STUFFUP;
414 			callout_stop(&acb->xs->xs_callout);
415 			aic_done(sc, acb);
433 aic_free_acb(struct aic_softc *sc, struct aic_acb *acb)
438 	acb->flags = 0;
439 	TAILQ_INSERT_HEAD(&sc->free_list, acb, chain);
446 	struct aic_acb *acb;
450 	acb = TAILQ_FIRST(&sc->free_list);
451 	if (acb != NULL) {
452 		TAILQ_REMOVE(&sc->free_list, acb, chain);
453 		acb->flags |= ACB_ALLOC;
456 	return (acb);
490 	struct aic_acb *acb;
510 		acb = aic_get_acb(sc);
516 		if (acb == NULL) {
518 			printf("unable to allocate acb\n");
523 		/* Initialize acb */
524 		acb->xs = xs;
525 		acb->timeout = xs->timeout;
528 			acb->flags |= ACB_RESET;
529 			acb->scsipi_cmd_length = 0;
530 			acb->data_length = 0;
532 			memcpy(&acb->scsipi_cmd, xs->cmd, xs->cmdlen);
533 			acb->scsipi_cmd_length = xs->cmdlen;
534 			acb->data_addr = xs->data;
535 			acb->data_length = xs->datalen;
537 		acb->target_stat = 0;
541 		TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain);
551 		if (aic_poll(sc, xs, acb->timeout)) {
552 			aic_timeout(acb);
553 			if (aic_poll(sc, xs, acb->timeout))
554 				aic_timeout(acb);
703 aic_select(struct aic_softc *sc, struct aic_acb *acb)
705 	struct scsipi_periph *periph = acb->xs->xs_periph;
728 	struct aic_acb *acb;
753 	for (acb = sc->nexus_list.tqh_first; acb != NULL;
754 	     acb = acb->chain.tqe_next) {
755 		periph = acb->xs->xs_periph;
760 	if (acb == NULL) {
768 	TAILQ_REMOVE(&sc->nexus_list, acb, chain);
770 	sc->sc_nexus = acb;
775 	if (acb->flags & ACB_RESET)
777 	else if (acb->flags & ACB_ABORT)
781 	sc->sc_dp = acb->data_addr;
782 	sc->sc_dleft = acb->data_length;
783 	sc->sc_cp = (u_char *)&acb->scsipi_cmd;
784 	sc->sc_cleft = acb->scsipi_cmd_length;
806 	struct aic_acb *acb;
816 	 * Find first acb in ready queue that is for a target/lunit pair that
821 	for (acb = sc->ready_list.tqh_first; acb != NULL;
822 	    acb = acb->chain.tqe_next) {
823 		periph = acb->xs->xs_periph;
828 			TAILQ_REMOVE(&sc->ready_list, acb, chain);
829 			sc->sc_nexus = acb;
830 			aic_select(sc, acb);
844 aic_sense(struct aic_softc *sc, struct aic_acb *acb)
846 	struct scsipi_xfer *xs = acb->xs;
849 	struct scsi_request_sense *ss = (void *)&acb->scsipi_cmd;
857 	acb->scsipi_cmd_length = sizeof(*ss);
858 	acb->data_addr = (char *)&xs->sense.scsi_sense;
859 	acb->data_length = sizeof(struct scsi_sense_data);
860 	acb->flags |= ACB_SENSE;
862 	if (acb->flags & ACB_NEXUS)
864 	if (acb == sc->sc_nexus) {
865 		aic_select(sc, acb);
867 		aic_dequeue(sc, acb);
868 		TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain);
878 aic_done(struct aic_softc *sc, struct aic_acb *acb)
880 	struct scsipi_xfer *xs = acb->xs;
895 		if (acb->flags & ACB_ABORT) {
897 		} else if (acb->flags & ACB_SENSE) {
899 		} else if (acb->target_stat == SCSI_CHECK) {
901 			xs->resid = acb->data_length;
902 			xs->status = acb->target_stat;
903 			aic_sense(sc, acb);
906 			xs->resid = acb->data_length;
924 	if (acb->flags & ACB_NEXUS)
926 	if (acb == sc->sc_nexus) {
931 		aic_dequeue(sc, acb);
933 	aic_free_acb(sc, acb);
939 aic_dequeue(struct aic_softc *sc, struct aic_acb *acb)
942 	if (acb->flags & ACB_NEXUS) {
943 		TAILQ_REMOVE(&sc->nexus_list, acb, chain);
945 		TAILQ_REMOVE(&sc->ready_list, acb, chain);
1053 		struct aic_acb *acb;
1058 		acb = sc->sc_nexus;
1059 		ti = &sc->sc_tinfo[acb->xs->xs_periph->periph_target];
1066 				periph = acb->xs->xs_periph;
1074 			acb->xs->resid = acb->data_length = sc->sc_dleft;
1100 				    acb->xs->xs_periph->periph_target);
1108 				    acb->xs->xs_periph->periph_target);
1126 			acb->data_addr = sc->sc_dp;
1127 			acb->data_length = sc->sc_dleft;
1131 			sc->sc_dp = acb->data_addr;
1132 			sc->sc_dleft = acb->data_length;
1133 			sc->sc_cp = (u_char *)&acb->scsipi_cmd;
1134 			sc->sc_cleft = acb->scsipi_cmd_length;
1154 					    acb->xs->xs_periph->periph_target);
1172 					    acb->xs->xs_periph->periph_target);
1703 	struct aic_acb *acb;
1779 				acb = sc->sc_nexus;
1781 				TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain);
1803 			acb = sc->sc_nexus;
1804 			periph = acb->xs->xs_periph;
1808 			if (acb->flags & ACB_RESET)
1810 			else if (acb->flags & ACB_ABORT)
1823 			acb->flags |= ACB_NEXUS;
1827 			sc->sc_dp = acb->data_addr;
1828 			sc->sc_dleft = acb->data_length;
1829 			sc->sc_cp = (u_char *)&acb->scsipi_cmd;
1830 			sc->sc_cleft = acb->scsipi_cmd_length;
1833 			if ((acb->xs->xs_control & XS_CTL_POLL) == 0)
1834 				callout_reset(&acb->xs->xs_callout,
1835 				    mstohz(acb->timeout), aic_timeout, acb);
1848 			acb = sc->sc_nexus;
1855 			acb->xs->error = XS_SELTIMEOUT;
1900 			acb = sc->sc_nexus;
1909 				periph = acb->xs->xs_periph;
1941 				aic_sense(sc, acb);
1945 			acb->xs->error = XS_DRIVER_STUFFUP;
1950 			acb = sc->sc_nexus;
1952 			acb->data_addr = sc->sc_dp;
1953 			acb->data_length = sc->sc_dleft;
1955 			TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain);
1961 			acb = sc->sc_nexus;
2000 			acb = sc->sc_nexus;
2002 			    acb->scsipi_cmd.opcode, acb->scsipi_cmd_length-1);
2035 		acb = sc->sc_nexus;
2037 		acb->target_stat = bus_space_read_1(iot, ioh, SCSIDAT);
2039 		AIC_MISC(("target_stat=0x%02x  ", acb->target_stat));
2051 	callout_stop(&acb->xs->xs_callout);
2052 	aic_done(sc, acb);
2066 aic_abort(struct aic_softc *sc, struct aic_acb *acb)
2070 	acb->timeout = AIC_ABORT_TIMEOUT;
2071 	acb->flags |= ACB_ABORT;
2073 	if (acb == sc->sc_nexus) {
2081 		aic_dequeue(sc, acb);
2082 		TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain);
2091 	struct aic_acb *acb = arg;
2092 	struct scsipi_xfer *xs = acb->xs;
2103 	if (acb->flags & ACB_ABORT) {
2110 		acb->xs->error = XS_TIMEOUT;
2111 		aic_abort(sc, acb);
2124 aic_show_scsi_cmd(struct aic_acb *acb)
2126 	u_char  *b = (u_char *)&acb->scsipi_cmd;
2127 	struct scsipi_periph *periph = acb->xs->xs_periph;
2131 	if ((acb->xs->xs_control & XS_CTL_RESET) == 0) {
2132 		for (i = 0; i < acb->scsipi_cmd_length; i++) {
2143 aic_print_acb(struct aic_acb *acb)
2146 	printf("acb@%p xs=%p flags=%x", acb, acb->xs, acb->flags);
2148 	       acb->data_addr, acb->data_length, acb->target_stat);
2149 	aic_show_scsi_cmd(acb);
2155 	struct aic_acb *acb;
2159 	for (acb = sc->ready_list.tqh_first; acb != NULL;
2160 	    acb = acb->chain.tqe_next)
2161 		aic_print_acb(acb);
2166 	for (acb = sc->nexus_list.tqh_first; acb != NULL;
2167 	    acb = acb->chain.tqe_next)
2168 		aic_print_acb(acb);