patch 'net/virtio: fix Tx queue 0 overriden by queue 128' has been queued to stable release 21.11.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/26/22. 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. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/7c58dbf159c20c07cf3ec81171801971dba6873c

Thanks.

Kevin

---
>From 7c58dbf159c20c07cf3ec81171801971dba6873c Mon Sep 17 00:00:00 2001
From: Xueming Li <xuemingl at nvidia.com>
Date: Thu, 2 Dec 2021 21:50:45 +0800
Subject: [PATCH] net/virtio: fix Tx queue 0 overriden by queue 128

[ upstream commit 8a886e573af9d25be33e333e9f5cfb48ddd3646c ]

Both Rx queue and Tx queue are VirtQ in virtio, VQ index is 256 for Tx
queue 128. Uint8 type of TxQ VQ index overflows and overrides Tx queue 0
data.

This patch fixes VQ index type with uint16 type.

Fixes: c1f86306a026 ("virtio: add new driver")

Signed-off-by: Xueming Li <xuemingl at nvidia.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 drivers/net/virtio/virtio_rxtx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index b39dd92d1b..4795893ec7 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -815,5 +815,5 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,
 			const struct rte_eth_txconf *tx_conf)
 {
-	uint8_t vq_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
+	uint16_t vq_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
 	struct virtio_hw *hw = dev->data->dev_private;
 	struct virtqueue *vq = hw->vqs[vq_idx];
@@ -859,5 +859,5 @@ virtio_dev_tx_queue_setup_finish(struct rte_eth_dev *dev,
 				uint16_t queue_idx)
 {
-	uint8_t vq_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
+	uint16_t vq_idx = 2 * queue_idx + VTNET_SQ_TQ_QUEUE_IDX;
 	struct virtio_hw *hw = dev->data->dev_private;
 	struct virtqueue *vq = hw->vqs[vq_idx];
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-02-21 15:22:46.949982807 +0000
+++ 0108-net-virtio-fix-Tx-queue-0-overriden-by-queue-128.patch	2022-02-21 15:22:44.214704403 +0000
@@ -1 +1 @@
-From 8a886e573af9d25be33e333e9f5cfb48ddd3646c Mon Sep 17 00:00:00 2001
+From 7c58dbf159c20c07cf3ec81171801971dba6873c Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 8a886e573af9d25be33e333e9f5cfb48ddd3646c ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org