hello,
On Mon, Oct 28, 2013 at 04:28:57PM +0800, Asias He wrote:
>
> Hello Milan,
>
> Does the attached patch fix your problem?
>
> --
> Asias
> From b48eaeff7250bf7476c771e82cdbf20c3e85c4c9 Mon Sep 17 00:00:00 2001
> From: Asias He <asias.hejun@xxxxxxxxx>
> Date: Mon, 28 Oct 2013 15:02:54 +0800
> Subject: [PATCH 1/1] kvm-tools: Fix virtio-net iov memcpy
>
> We should skip copied bytes from the buffer not from the iov itself
> which memcpy_toiovecend does.
>
> Signed-off-by: Asias He <asias.hejun@xxxxxxxxx>
> ---
> tools/kvm/virtio/net.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/kvm/virtio/net.c b/tools/kvm/virtio/net.c
> index 2c34996..3715aaf 100644
> --- a/tools/kvm/virtio/net.c
> +++ b/tools/kvm/virtio/net.c
> @@ -114,7 +114,7 @@ static void *virtio_net_rx_thread(void *p)
> while (copied < len) {
> size_t iovsize = min(len - copied, iov_size(iov, in));
>
> - memcpy_toiovecend(iov, buffer, copied, iovsize);
> + memcpy_toiovec(iov, buffer + copied, iovsize);
> copied += iovsize;
> if (has_virtio_feature(ndev, VIRTIO_NET_F_MRG_RXBUF))
> hdr->num_buffers++;
> --
> 1.8.3.1
>
Excellent, this patch fixes the problem. Feel free to add:
Tested-by: Milan Kocian <milon@xxxxx>
Many thanks.
--
Milan Kocian
--
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