dev/pci/arcmsr.c

271 	struct arc_ccb			*ccb = NULL;
306 		ccb = &sc->sc_ccbs[htole32(cmd->cmd.context)];
309 		    ccb->ccb_offset, ARC_MAX_IOCMDLEN,
312 		arc_scsi_cmd_done(sc, ccb, reg);
326 	struct arc_ccb			*ccb;
360 	ccb = arc_get_ccb(sc);
361 	if (ccb == NULL) {
368 	ccb->ccb_xs = xs;
370 	if (arc_load_xs(ccb) != 0) {
372 		arc_put_ccb(sc, ccb);
378 	cmd = &ccb->ccb_cmd->cmd;
379 	reg = ccb->ccb_cmd_post;
387 	cmd->sgl_len = ccb->ccb_dmamap->dm_nsegs;
390 	if (ccb->ccb_dmamap->dm_nsegs > ARC_SGL_256LEN) {
395 	cmd->context = htole32(ccb->ccb_id);
402 	    ccb->ccb_offset, ARC_MAX_IOCMDLEN,
407 		if (arc_complete(sc, ccb, xs->timeout) != 0) {
419 arc_load_xs(struct arc_ccb *ccb)
421 	struct arc_softc		*sc = ccb->ccb_sc;
422 	struct scsipi_xfer		*xs = ccb->ccb_xs;
423 	bus_dmamap_t			dmap = ccb->ccb_dmamap;
424 	struct arc_sge			*sgl = ccb->ccb_cmd->sgl, *sge;
458 arc_scsi_cmd_done(struct arc_softc *sc, struct arc_ccb *ccb, uint32_t reg)
460 	struct scsipi_xfer		*xs = ccb->ccb_xs;
464 		bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap, 0,
465 		    ccb->ccb_dmamap->dm_mapsize,
468 		bus_dmamap_unload(sc->sc_dmat, ccb->ccb_dmamap);
475 		cmd = &ccb->ccb_cmd->cmd;
508 	arc_put_ccb(sc, ccb);
515 	struct arc_ccb			*ccb = NULL;
533 		ccb = &sc->sc_ccbs[htole32(cmd->cmd.context)];
536 		    ccb->ccb_offset, ARC_MAX_IOCMDLEN,
539 		arc_scsi_cmd_done(sc, ccb, reg);
540 	} while (nccb != ccb);
2073 	struct arc_ccb		*ccb;
2086 		aprint_error_dev(self, "unable to allocate ccb dmamem\n");
2092 		ccb = &sc->sc_ccbs[i];
2095 		    MAXPHYS, 0, 0, &ccb->ccb_dmamap) != 0) {
2097 			    "unable to create dmamap for ccb %d\n", i);
2101 		ccb->ccb_sc = sc;
2102 		ccb->ccb_id = i;
2103 		ccb->ccb_offset = ARC_MAX_IOCMDLEN * i;
2105 		ccb->ccb_cmd = (struct arc_io_cmd *)&cmd[ccb->ccb_offset];
2106 		ccb->ccb_cmd_post = (ARC_DMA_DVA(sc->sc_requests) +
2107 		    ccb->ccb_offset) >> ARC_REG_POST_QUEUE_ADDR_SHIFT;
2109 		arc_put_ccb(sc, ccb);
2115 	while ((ccb = arc_get_ccb(sc)) != NULL)
2116 	    bus_dmamap_destroy(sc->sc_dmat, ccb->ccb_dmamap);
2128 	struct arc_ccb			*ccb;
2130 	ccb = TAILQ_FIRST(&sc->sc_ccb_free);
2131 	if (ccb != NULL)
2132 		TAILQ_REMOVE(&sc->sc_ccb_free, ccb, ccb_link);
2134 	return ccb;
2138 arc_put_ccb(struct arc_softc *sc, struct arc_ccb *ccb)
2140 	ccb->ccb_xs = NULL;
2141 	memset(ccb->ccb_cmd, 0, ARC_MAX_IOCMDLEN);
2142 	TAILQ_INSERT_TAIL(&sc->sc_ccb_free, ccb, ccb_link);