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authorNicholas Bellinger <nab@linux-iscsi.org>2014-12-21 10:42:08 -0800
committerJiri Slaby <jslaby@suse.cz>2015-01-29 15:44:48 +0100
commit785845986d23629bd0b2286b00101ba01c40fce0 (patch)
tree5ca71496317c137e7199a821174f03b968661391
parentb745a867f00067b81579ec373f71224401eeebc2 (diff)
vhost-scsi: Add missing virtio-scsi -> TCM attribute conversion
commit 46243860806bdc2756f3ce8ac86b4d7c616bcd6c upstream. While looking at hch's recent conversion to drop the MSG_*_TAG definitions, I noticed a long standing bug in vhost-scsi where the VIRTIO_SCSI_S_* attribute definitions where incorrectly being passed directly into target_submit_cmd_map_sgls(). This patch adds the missing virtio-scsi to TCM/SAM task attribute conversion. Cc: Christoph Hellwig <hch@lst.de> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-rw-r--r--drivers/vhost/scsi.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index c5b631cceb4c..d7fddc7d10d5 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -861,6 +861,23 @@ vhost_scsi_map_iov_to_sgl(struct tcm_vhost_cmd *cmd,
return 0;
}
+static int vhost_scsi_to_tcm_attr(int attr)
+{
+ switch (attr) {
+ case VIRTIO_SCSI_S_SIMPLE:
+ return MSG_SIMPLE_TAG;
+ case VIRTIO_SCSI_S_ORDERED:
+ return MSG_ORDERED_TAG;
+ case VIRTIO_SCSI_S_HEAD:
+ return MSG_HEAD_TAG;
+ case VIRTIO_SCSI_S_ACA:
+ return MSG_ACA_TAG;
+ default:
+ break;
+ }
+ return MSG_SIMPLE_TAG;
+}
+
static void tcm_vhost_submission_work(struct work_struct *work)
{
struct tcm_vhost_cmd *cmd =
@@ -887,9 +904,9 @@ static void tcm_vhost_submission_work(struct work_struct *work)
rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess,
cmd->tvc_cdb, &cmd->tvc_sense_buf[0],
cmd->tvc_lun, cmd->tvc_exp_data_len,
- cmd->tvc_task_attr, cmd->tvc_data_direction,
- TARGET_SCF_ACK_KREF, sg_ptr, cmd->tvc_sgl_count,
- sg_bidi_ptr, sg_no_bidi);
+ vhost_scsi_to_tcm_attr(cmd->tvc_task_attr),
+ cmd->tvc_data_direction, TARGET_SCF_ACK_KREF,
+ sg_ptr, cmd->tvc_sgl_count, sg_bidi_ptr, sg_no_bidi);
if (rc < 0) {
transport_send_check_condition_and_sense(se_cmd,
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);