[PATCH net-next v3 3/4] virtio_net: change the command token to completion
From: Heng Qi <hidden>
Date: 2024-06-06 06:15:08
Also in:
virtualization
Subsystem:
networking drivers, the rest, virtio net driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Previously, control vq only allowed a single request to be sent, so using virtnet_info as a global token was fine. To support concurrent requests, the driver needs to use a command-level token to distinguish between requests that have been sent. Signed-off-by: Heng Qi <redacted> --- drivers/net/virtio_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 823a9dca51c1..e59e12bb7601 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c@@ -2721,7 +2721,8 @@ static bool virtnet_send_command_reply(struct virtnet_info *vi, sgs[out_num + in_num++] = in; BUG_ON(out_num + in_num > ARRAY_SIZE(sgs)); - ret = virtqueue_add_sgs(vi->cvq, sgs, out_num, in_num, vi, GFP_ATOMIC); + ret = virtqueue_add_sgs(vi->cvq, sgs, out_num, in_num, + &ctrl->completion, GFP_ATOMIC); if (ret < 0) { dev_warn(&vi->vdev->dev, "Failed to add sgs for command vq: %d\n.", ret);
--
2.32.0.3.g01195cf9f