This is a note to let you know that I've just added the patch titled
vhost-scsi: Add missing virtio-scsi -> TCM attribute
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
vhost-scsi-add-missing-virtio-scsi-tcm-attribute.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 46243860806bdc2756f3ce8ac86b4d7c616bcd6c Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Date: Sun, 21 Dec 2014 10:42:08 -0800
Subject: vhost-scsi: Add missing virtio-scsi -> TCM attribute
conversion
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
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@xxxxxx>
Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/vhost/scsi.c | 24 +++++++++++++++++++++---
1 file changed, 21 insertions(+), 3 deletions(-)
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -909,6 +909,23 @@ vhost_scsi_map_iov_to_prot(struct tcm_vh
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 =
@@ -934,9 +951,10 @@ static void tcm_vhost_submission_work(st
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,
- NULL, 0, sg_prot_ptr, cmd->tvc_prot_sgl_count);
+ vhost_scsi_to_tcm_attr(cmd->tvc_task_attr),
+ cmd->tvc_data_direction, TARGET_SCF_ACK_KREF,
+ sg_ptr, cmd->tvc_sgl_count, NULL, 0,
+ sg_prot_ptr, cmd->tvc_prot_sgl_count);
if (rc < 0) {
transport_send_check_condition_and_sense(se_cmd,
TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
Patches currently in stable-queue which might be from nab@xxxxxxxxxxxxxxx are
queue-3.18/iscsi-target-fail-connection-on-short-sendmsg-writes.patch
queue-3.18/iser-target-allocate-pi-contexts-dynamically.patch
queue-3.18/iscsi-iser-target-expose-supported-protection-ops-according-to-t10_pi.patch
queue-3.18/scsi-fix-random-memory-corruption-with-scsi-mq-t10-pi.patch
queue-3.18/iser-target-fix-connected_handler-teardown-flow-race.patch
queue-3.18/iser-target-fix-flush-disconnect-completion-handling.patch
queue-3.18/iscsi-iser-target-initiate-termination-only-once.patch
queue-3.18/iser-target-parallelize-cm-connection-establishment.patch
queue-3.18/iser-target-handle-addr_change-event-for-listener-cm_id.patch
queue-3.18/target-drop-arbitrary-maximum-i-o-size-limit.patch
queue-3.18/iser-target-fix-null-dereference-in-sw-mode-dif.patch
queue-3.18/uapi-linux-target_core_user.h-fix-headers_install.sh-badness.patch
queue-3.18/iser-target-fix-implicit-termination-of-connections.patch
queue-3.18/tcm_loop-fix-wrong-i_t-nexus-association.patch
queue-3.18/vhost-scsi-add-missing-virtio-scsi-tcm-attribute.patch
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