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[PATCH 3/3] virtio-net: virtio_net_flush_tx() check for per-queue reset
From: |
Xuan Zhuo |
Subject: |
[PATCH 3/3] virtio-net: virtio_net_flush_tx() check for per-queue reset |
Date: |
Sat, 28 Jan 2023 15:17:24 +0800 |
Check whether it is per-queue reset state in virtio_net_flush_tx().
Before per-queue reset, we need to recover async tx resources. At this
time, virtio_net_flush_tx() is called, but we should not try to send
new packets, so virtio_net_flush_tx() should check the current
per-queue reset state.
Fixes: 7dc6be52 ("virtio-net: support queue reset")
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1451
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
---
hw/net/virtio-net.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 3ae909041a..e7e651e915 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -2627,7 +2627,7 @@ static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
VirtQueueElement *elem;
int32_t num_packets = 0;
int queue_index = vq2q(virtio_get_queue_index(q->tx_vq));
- if (!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
+ if (!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK) || q->tx_vq->reset) {
return num_packets;
}
--
2.32.0.3.g01195cf9f