patch 'net/virtio-user: reset used index counter' has been queued to stable release 21.11.9

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/02/24. 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/4f7d560e1ec9a8bd66a944c53e70cad6a181fe44

Thanks.

Kevin

---
>From 4f7d560e1ec9a8bd66a944c53e70cad6a181fe44 Mon Sep 17 00:00:00 2001
From: Kommula Shiva Shankar <kshankar at marvell.com>
Date: Mon, 5 Aug 2024 10:08:41 +0000
Subject: [PATCH] net/virtio-user: reset used index counter

[ upstream commit ff11fc60c5d8d9ae5a0f0114db4c3bc834090548 ]

When the virtio device is reinitialized during ethdev reconfiguration,
all the virtio rings are recreated and repopulated on the device.
Accordingly, reset the used index counter value back to zero.

Fixes: 48a4464029a7 ("net/virtio-user: support control VQ for packed")

Signed-off-by: Kommula Shiva Shankar <kshankar at marvell.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 drivers/net/virtio/virtio_user_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 9ba4ea3b33..07e4feca0c 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -199,4 +199,5 @@ virtio_user_setup_queue_packed(struct virtqueue *vq,
 	dev->packed_queues[queue_idx].avail_wrap_counter = true;
 	dev->packed_queues[queue_idx].used_wrap_counter = true;
+	dev->packed_queues[queue_idx].used_idx = 0;
 
 	for (i = 0; i < vring->num; i++)
-- 
2.47.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-11-27 17:17:39.094319265 +0000
+++ 0025-net-virtio-user-reset-used-index-counter.patch	2024-11-27 17:17:38.180269140 +0000
@@ -1 +1 @@
-From ff11fc60c5d8d9ae5a0f0114db4c3bc834090548 Mon Sep 17 00:00:00 2001
+From 4f7d560e1ec9a8bd66a944c53e70cad6a181fe44 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit ff11fc60c5d8d9ae5a0f0114db4c3bc834090548 ]
+
@@ -11 +12,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
-index bf29f0dacd..747dddeb2e 100644
+index 9ba4ea3b33..07e4feca0c 100644
@@ -23 +24 @@
-@@ -205,4 +205,5 @@ virtio_user_setup_queue_packed(struct virtqueue *vq,
+@@ -199,4 +199,5 @@ virtio_user_setup_queue_packed(struct virtqueue *vq,