[dpdk-stable] patch 'vhost: fix IOVA access for packed ring' has been queued to stable release 18.08.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 18.08.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/08/18. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the patch applied
to the branch. If the code is different (ie: not only metadata diffs), due for example to
a change in context or macro names, please double check it.

Thanks.

Kevin Traynor

---
>From 8b5b2dc3c24c53e7c657ae18a9baabc4f8261855 Mon Sep 17 00:00:00 2001
From: Tiwei Bie <tiwei.bie at intel.com>
Date: Tue, 6 Nov 2018 14:40:21 +0800
Subject: [PATCH] vhost: fix IOVA access for packed ring

[ upstream commit 30affaeebc5655793622370d9d64695d9f785670 ]

We should apply for RO access when receiving packets from the
VM and apply for RW access when sending packets to the VM.

Fixes: a922401f35cc ("vhost: add Rx support for packed ring")
Fixes: ae999ce49dcb ("vhost: add Tx support for packed ring")

Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 lib/librte_vhost/virtio_net.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 8ad30c94a..5e1a1a727 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -599,5 +599,5 @@ reserve_avail_buf_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,
 						buf_vec, &vec_idx,
 						&buf_id, &len,
-						VHOST_ACCESS_RO) < 0))
+						VHOST_ACCESS_RW) < 0))
 			return -1;
 
@@ -1504,5 +1504,5 @@ virtio_dev_tx_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,
 						buf_vec, &nr_vec,
 						&buf_id, &dummy_len,
-						VHOST_ACCESS_RW) < 0))
+						VHOST_ACCESS_RO) < 0))
 			break;
 
-- 
2.19.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2018-11-29 13:11:35.324538200 +0000
+++ 0011-vhost-fix-IOVA-access-for-packed-ring.patch	2018-11-29 13:11:34.000000000 +0000
@@ -1,14 +1,15 @@
-From 30affaeebc5655793622370d9d64695d9f785670 Mon Sep 17 00:00:00 2001
+From 8b5b2dc3c24c53e7c657ae18a9baabc4f8261855 Mon Sep 17 00:00:00 2001
 From: Tiwei Bie <tiwei.bie at intel.com>
 Date: Tue, 6 Nov 2018 14:40:21 +0800
 Subject: [PATCH] vhost: fix IOVA access for packed ring
 
+[ upstream commit 30affaeebc5655793622370d9d64695d9f785670 ]
+
 We should apply for RO access when receiving packets from the
 VM and apply for RW access when sending packets to the VM.
 
 Fixes: a922401f35cc ("vhost: add Rx support for packed ring")
 Fixes: ae999ce49dcb ("vhost: add Tx support for packed ring")
-Cc: stable at dpdk.org
 
 Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
 Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>