From: Cheng Jiang <cheng1.jiang@intel.com>
To: maxime.coquelin@redhat.com, chenbo.xia@intel.com
Cc: dev@dpdk.org, wangzhihong.wzh@bytedance.com, jiayu.hu@intel.com,
xuan.ding@intel.com, wenwux.ma@intel.com, yuanx.wang@intel.com,
xingguang.he@intel.com, Cheng Jiang <cheng1.jiang@intel.com>,
stable@dpdk.org
Subject: [PATCH] vhost: fix slot index in async split virtqueue Tx
Date: Thu, 23 Feb 2023 02:30:32 +0000 [thread overview]
Message-ID: <20230223023032.681-1-cheng1.jiang@intel.com> (raw)
The slot_idx in the asynchronous Vhost split virtqueue dequeue data path
is supposed to be decreased by 1 when desc_to_mbuf() fails.
Fixes: 84d5204310d7 ("vhost: support async dequeue for split ring")
Cc: stable@dpdk.org
Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
---
lib/vhost/virtio_net.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/vhost/virtio_net.c b/lib/vhost/virtio_net.c
index 8caf05319e..374007a61a 100644
--- a/lib/vhost/virtio_net.c
+++ b/lib/vhost/virtio_net.c
@@ -3720,6 +3720,7 @@ virtio_dev_tx_async_split(struct virtio_net *dev, struct vhost_virtqueue *vq,
allocerr_warned = true;
}
dropped = true;
+ slot_idx--;
break;
}
--
2.35.1
next reply other threads:[~2023-02-23 3:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-23 2:30 Cheng Jiang [this message]
2023-03-02 10:23 ` Maxime Coquelin
2023-03-06 14:23 ` Maxime Coquelin
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