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Differential D18852 Diff 53761 head/sys/dev/beri/virtio/virtio_block.c

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head/sys/dev/beri/virtio/virtio_block.c

Show First 20 Lines • Show All 181 Lines • ▼ Show 20 Linesvtblk_proc(struct beri_vtblk_softc *sc, struct vqueue_info *vq)
switch (type) { switch (type) {
case VIRTIO_BLK_T_OUT: case VIRTIO_BLK_T_OUT:
case VIRTIO_BLK_T_IN: case VIRTIO_BLK_T_IN:
err = vtblk_rdwr(sc, tiov + 1, i - 1, err = vtblk_rdwr(sc, tiov + 1, i - 1,
offset, type, iolen); offset, type, iolen);
break; break;
case VIRTIO_BLK_T_GET_ID: case VIRTIO_BLK_T_GET_ID:
/* Assume a single buffer */ /* Assume a single buffer */
strlcpy(iov[1].iov_base, sc->ident, strncpy(iov[1].iov_base, sc->ident,
MIN(iov[1].iov_len, sizeof(sc->ident))); MIN(iov[1].iov_len, sizeof(sc->ident)));
err = 0; err = 0;
break; break;
case VIRTIO_BLK_T_FLUSH: case VIRTIO_BLK_T_FLUSH:
/* Possible? */ /* Possible? */
default: default:
err = -ENOSYS; err = -ENOSYS;
break; break;
▲ Show 20 Lines • Show All 197 Lines • ▼ Show 20 Linesbackend_info(struct beri_vtblk_softc *sc)
s = (uint32_t *)cfg; s = (uint32_t *)cfg;
for (i = 0; i < sizeof(struct virtio_blk_config); i+=4) { for (i = 0; i < sizeof(struct virtio_blk_config); i+=4) {
WRITE4(sc, VIRTIO_MMIO_CONFIG + i, *s); WRITE4(sc, VIRTIO_MMIO_CONFIG + i, *s);
s+=1; s+=1;
} }
sprintf(sc->ident, "Virtio block backend"); strncpy(sc->ident, "Virtio block backend", sizeof(sc->ident));
return (0); return (0);
} }
static void static void
vtblk_intr(void *arg) vtblk_intr(void *arg)
{ {
struct beri_vtblk_softc *sc; struct beri_vtblk_softc *sc;
▲ Show 20 Lines • Show All 149 Lines • Show Last 20 Lines