dev/ic/mb89352.c

76  * 4) Rewrite it to use malloc for the acb structs instead of static alloc.?
391 	struct spc_acb *acb;
407 		acb = sc->sc_acb;
408 		memset(acb, 0, sizeof(sc->sc_acb));
409 		for (r = 0; r < sizeof(sc->sc_acb) / sizeof(*acb); r++) {
410 			TAILQ_INSERT_TAIL(&sc->free_list, acb, chain);
411 			acb++;
417 		if ((acb = sc->sc_nexus) != NULL) {
418 			acb->xs->error = XS_DRIVER_STUFFUP;
419 			callout_stop(&acb->xs->xs_callout);
420 			spc_done(sc, acb);
422 		while ((acb = TAILQ_FIRST(&sc->nexus_list)) != NULL) {
423 			acb->xs->error = XS_DRIVER_STUFFUP;
424 			callout_stop(&acb->xs->xs_callout);
425 			spc_done(sc, acb);
455 spc_free_acb(struct spc_softc *sc, struct spc_acb *acb, int flags)
462 	acb->flags = 0;
463 	TAILQ_INSERT_HEAD(&sc->free_list, acb, chain);
470 	struct spc_acb *acb;
475 	acb = TAILQ_FIRST(&sc->free_list);
476 	if (acb != NULL) {
477 		TAILQ_REMOVE(&sc->free_list, acb, chain);
478 		acb->flags |= ACB_ALLOC;
481 	return acb;
515 	struct spc_acb *acb;
527 		acb = spc_get_acb(sc);
533 		if (acb == NULL) {
535 			printf("unable to allocate acb\n");
540 		/* Initialize acb */
541 		acb->xs = xs;
542 		acb->timeout = xs->timeout;
545 			acb->flags |= ACB_RESET;
546 			acb->scsipi_cmd_length = 0;
547 			acb->data_length = 0;
549 			memcpy(&acb->scsipi_cmd, xs->cmd, xs->cmdlen);
550 			acb->scsipi_cmd_length = xs->cmdlen;
551 			acb->data_addr = xs->data;
552 			acb->data_length = xs->datalen;
554 		acb->target_stat = 0;
558 		TAILQ_INSERT_TAIL(&sc->ready_list, acb, chain);
576 		if (spc_poll(sc, xs, acb->timeout)) {
577 			spc_timeout(acb);
578 			if (spc_poll(sc, xs, acb->timeout))
579 				spc_timeout(acb);
667 spc_select(struct spc_softc *sc, struct spc_acb *acb)
669 	struct scsipi_periph *periph = acb->xs->xs_periph;
710 	struct spc_acb *acb;
736 	TAILQ_FOREACH(acb, &sc->nexus_list, chain) {
737 		periph = acb->xs->xs_periph;
742 	if (acb == NULL) {
750 	TAILQ_REMOVE(&sc->nexus_list, acb, chain);
752 	sc->sc_nexus = acb;
757 	if (acb->flags & ACB_RESET)
759 	else if (acb->flags & ACB_ABORT)
763 	sc->sc_dp = acb->data_addr;
764 	sc->sc_dleft = acb->data_length;
765 	sc->sc_cp = (uint8_t *)&acb->scsipi_cmd;
766 	sc->sc_cleft = acb->scsipi_cmd_length;
788 	struct spc_acb *acb;
797 	 * Find first acb in ready queue that is for a target/lunit pair that
800 	TAILQ_FOREACH(acb, &sc->ready_list, chain) {
801 		periph = acb->xs->xs_periph;
806 			TAILQ_REMOVE(&sc->ready_list, acb, chain);
807 			sc->sc_nexus = acb;
808 			spc_select(sc, acb);
823 spc_done(struct spc_softc *sc, struct spc_acb *acb)
825 	struct scsipi_xfer *xs = acb->xs;
832 		if (acb->flags & ACB_ABORT) {
835 			switch (acb->target_stat) {
838 				xs->resid = acb->data_length;
841 				xs->status = acb->target_stat;
845 				xs->resid = acb->data_length;
851 				    device_xname(sc->sc_dev), acb->target_stat);
870 	if (acb->flags & ACB_NEXUS)
872 	if (acb == sc->sc_nexus) {
877 		spc_dequeue(sc, acb);
879 	spc_free_acb(sc, acb, xs->xs_control);
885 spc_dequeue(struct spc_softc *sc, struct spc_acb *acb)
889 	if (acb->flags & ACB_NEXUS)
890 		TAILQ_REMOVE(&sc->nexus_list, acb, chain);
892 		TAILQ_REMOVE(&sc->ready_list, acb, chain);
1041 		struct spc_acb *acb;
1046 		acb = sc->sc_nexus;
1047 		ti = &sc->sc_tinfo[acb->xs->xs_periph->periph_target];
1053 				periph = acb->xs->xs_periph;
1061 			acb->xs->resid = acb->data_length = sc->sc_dleft;
1109 			acb->data_addr = sc->sc_dp;
1110 			acb->data_length = sc->sc_dleft;
1114 			sc->sc_dp = acb->data_addr;
1115 			sc->sc_dleft = acb->data_length;
1116 			sc->sc_cp = (uint8_t *)&acb->scsipi_cmd;
1117 			sc->sc_cleft = acb->scsipi_cmd_length;
1136 					scsipi_printaddr(acb->xs->xs_periph);
1156 					scsipi_printaddr(acb->xs->xs_periph);
1644 	struct spc_acb *acb;
1729 				acb = sc->sc_nexus;
1731 				TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain);
1754 			acb = sc->sc_nexus;
1755 			periph = acb->xs->xs_periph;
1759 			if (acb->flags & ACB_RESET)
1761 			else if (acb->flags & ACB_ABORT)
1774 			acb->flags |= ACB_NEXUS;
1778 			sc->sc_dp = acb->data_addr;
1779 			sc->sc_dleft = acb->data_length;
1780 			sc->sc_cp = (uint8_t *)&acb->scsipi_cmd;
1781 			sc->sc_cleft = acb->scsipi_cmd_length;
1784 			if ((acb->xs->xs_control & XS_CTL_POLL) == 0)
1785 				callout_reset(&acb->xs->xs_callout,
1786 				    mstohz(acb->timeout), spc_timeout, acb);
1799 			acb = sc->sc_nexus;
1803 			acb->xs->error = XS_SELTIMEOUT;
1841 			acb = sc->sc_nexus;
1850 				periph = acb->xs->xs_periph;
1882 				acb->target_stat = SCSI_CHECK;
1883 				acb->xs->error = XS_NOERROR;
1887 			acb->xs->error = XS_DRIVER_STUFFUP;
1892 			acb = sc->sc_nexus;
1893 			TAILQ_INSERT_HEAD(&sc->nexus_list, acb, chain);
1899 			acb = sc->sc_nexus;
1953 			acb = sc->sc_nexus;
1955 			    acb->scsipi_cmd.opcode, acb->scsipi_cmd_length - 1);
2000 		acb = sc->sc_nexus;
2007 		acb->target_stat = bus_space_read_1(iot, ioh, TEMP);
2013 		SPC_MISC(("target_stat=0x%02x  ", acb->target_stat));
2026 	callout_stop(&acb->xs->xs_callout);
2029 	spc_done(sc, acb);
2046 spc_abort(struct spc_softc *sc, struct spc_acb *acb)
2050 	acb->timeout = SPC_ABORT_TIMEOUT;
2051 	acb->flags |= ACB_ABORT;
2053 	if (acb == sc->sc_nexus) {
2061 		spc_dequeue(sc, acb);
2062 		TAILQ_INSERT_HEAD(&sc->ready_list, acb, chain);
2071 	struct spc_acb *acb = arg;
2072 	struct scsipi_xfer *xs = acb->xs;
2083 	if (acb->flags & ACB_ABORT) {
2090 		acb->xs->error = XS_TIMEOUT;
2091 		spc_abort(sc, acb);
2104 spc_show_scsi_cmd(struct spc_acb *acb)
2106 	uint8_t  *b = (uint8_t *)&acb->scsipi_cmd;
2109 	scsipi_printaddr(acb->xs->xs_periph);
2110 	if ((acb->xs->xs_control & XS_CTL_RESET) == 0) {
2111 		for (i = 0; i < acb->scsipi_cmd_length; i++) {
2122 spc_print_acb(struct spc_acb *acb)
2125 	printf("acb@%p xs=%p flags=%x", acb, acb->xs, acb->flags);
2127 	    acb->data_addr, acb->data_length, acb->target_stat);
2128 	spc_show_scsi_cmd(acb);
2134 	struct spc_acb *acb;
2138 	TAILQ_FOREACH(acb, &sc->ready_list, chain)
2139 		spc_print_acb(acb);
2144 	TAILQ_FOREACH(acb, &sc->nexus_list, chain)
2145 		spc_print_acb(acb);