Linux Virtualization - Nov 2014 - [PATCH v6 33/46] vhost/net: larger header for virtio 1.0

Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
 drivers/vhost/net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index cae22f9..1ac58d0 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1027,7 +1027,8 @@ static int vhost_net_set_features(struct vhost_net *n, u64
features)
 	size_t vhost_hlen, sock_hlen, hdr_len;
 	int i;
 
-	hdr_len = (features & (1 << VIRTIO_NET_F_MRG_RXBUF)) ?
+	hdr_len = (features & ((1ULL << VIRTIO_NET_F_MRG_RXBUF) |
+			       (1ULL << VIRTIO_F_VERSION_1))) ?
 			sizeof(struct virtio_net_hdr_mrg_rxbuf) :
 			sizeof(struct virtio_net_hdr);
 	if (features & (1 << VHOST_NET_F_VIRTIO_NET_HDR)) {
-- 
MST

On Fri, Nov 28, 2014 at 4:10 AM, Michael S. Tsirkin <mst at redhat.com> 
wrote:
> Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
> ---
>  drivers/vhost/net.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index cae22f9..1ac58d0 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -1027,7 +1027,8 @@ static int vhost_net_set_features(struct 
> vhost_net *n, u64 features)
>  	size_t vhost_hlen, sock_hlen, hdr_len;
>  	int i;
>  
> -	hdr_len = (features & (1 << VIRTIO_NET_F_MRG_RXBUF)) ?
> +	hdr_len = (features & ((1ULL << VIRTIO_NET_F_MRG_RXBUF) |
> +			       (1ULL << VIRTIO_F_VERSION_1))) ?
>  			sizeof(struct virtio_net_hdr_mrg_rxbuf) :
>  			sizeof(struct virtio_net_hdr);
>  	if (features & (1 << VHOST_NET_F_VIRTIO_NET_HDR)) {
> -- 
> MST
> 
Reviewed-by: Jason Wang <jasowang at redhat.com>