summaryrefslogtreecommitdiff
path: root/drivers/scsi/virtio_scsi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/virtio_scsi.c')
-rw-r--r--drivers/scsi/virtio_scsi.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index f164f24a4..7dbbb29d2 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -501,6 +501,7 @@ static void virtio_scsi_init_hdr(struct virtio_device *vdev,
cmd->crn = 0;
}
+#ifdef CONFIG_BLK_DEV_INTEGRITY
static void virtio_scsi_init_hdr_pi(struct virtio_device *vdev,
struct virtio_scsi_cmd_req_pi *cmd_pi,
struct scsi_cmnd *sc)
@@ -524,6 +525,7 @@ static void virtio_scsi_init_hdr_pi(struct virtio_device *vdev,
blk_rq_sectors(rq) *
bi->tuple_size);
}
+#endif
static int virtscsi_queuecommand(struct virtio_scsi *vscsi,
struct virtio_scsi_vq *req_vq,
@@ -546,11 +548,14 @@ static int virtscsi_queuecommand(struct virtio_scsi *vscsi,
BUG_ON(sc->cmd_len > VIRTIO_SCSI_CDB_SIZE);
+#ifdef CONFIG_BLK_DEV_INTEGRITY
if (virtio_has_feature(vscsi->vdev, VIRTIO_SCSI_F_T10_PI)) {
virtio_scsi_init_hdr_pi(vscsi->vdev, &cmd->req.cmd_pi, sc);
memcpy(cmd->req.cmd_pi.cdb, sc->cmnd, sc->cmd_len);
req_size = sizeof(cmd->req.cmd_pi);
- } else {
+ } else
+#endif
+ {
virtio_scsi_init_hdr(vscsi->vdev, &cmd->req.cmd, sc);
memcpy(cmd->req.cmd.cdb, sc->cmnd, sc->cmd_len);
req_size = sizeof(cmd->req.cmd);
@@ -944,7 +949,7 @@ static int virtscsi_probe(struct virtio_device *vdev)
{
struct Scsi_Host *shost;
struct virtio_scsi *vscsi;
- int err, host_prot;
+ int err;
u32 sg_elems, num_targets;
u32 cmd_per_lun;
u32 num_queues;
@@ -1002,7 +1007,10 @@ static int virtscsi_probe(struct virtio_device *vdev)
shost->max_cmd_len = VIRTIO_SCSI_CDB_SIZE;
shost->nr_hw_queues = num_queues;
+#ifdef CONFIG_BLK_DEV_INTEGRITY
if (virtio_has_feature(vdev, VIRTIO_SCSI_F_T10_PI)) {
+ int host_prot;
+
host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |
SHOST_DIX_TYPE2_PROTECTION | SHOST_DIX_TYPE3_PROTECTION;
@@ -1010,6 +1018,7 @@ static int virtscsi_probe(struct virtio_device *vdev)
scsi_host_set_prot(shost, host_prot);
scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
}
+#endif
err = scsi_add_host(shost, &vdev->dev);
if (err)
@@ -1090,7 +1099,9 @@ static struct virtio_device_id id_table[] = {
static unsigned int features[] = {
VIRTIO_SCSI_F_HOTPLUG,
VIRTIO_SCSI_F_CHANGE,
+#ifdef CONFIG_BLK_DEV_INTEGRITY
VIRTIO_SCSI_F_T10_PI,
+#endif
};
static struct virtio_driver virtio_scsi_driver = {