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authorHerbert Xu <herbert@gondor.apana.org.au>2008-04-18 11:21:42 +0800
committerRusty Russell <rusty@rustcorp.com.au>2008-07-25 12:06:01 +1000
commita9ea3fc6f2654a7407864fec983d1671d775b5ee (patch)
treeb7c57a64bafdbb69271c33ca2d3fedf7331443f0 /drivers/net/virtio_net.c
parent9953ca6cb757fb317bb7cdd2fcbf9b88312e241b (diff)
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virtio net: Add ethtool ops for SG/GSO
This patch adds some basic ethtool operations to virtio_net so I could test SG without GSO (which was really useful because TSO turned out to be buggy :) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (remove MTU setting)
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 06d5c43bb20..ce37a7e9541 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -19,6 +19,7 @@
//#define DEBUG
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
#include <linux/module.h>
#include <linux/virtio.h>
#include <linux/virtio_net.h>
@@ -408,6 +409,22 @@ static int virtnet_close(struct net_device *dev)
return 0;
}
+static int virtnet_set_tx_csum(struct net_device *dev, u32 data)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
+ struct virtio_device *vdev = vi->vdev;
+
+ if (data && !virtio_has_feature(vdev, VIRTIO_NET_F_CSUM))
+ return -ENOSYS;
+
+ return ethtool_op_set_tx_hw_csum(dev, data);
+}
+
+static struct ethtool_ops virtnet_ethtool_ops = {
+ .set_tx_csum = virtnet_set_tx_csum,
+ .set_sg = ethtool_op_set_sg,
+};
+
static int virtnet_probe(struct virtio_device *vdev)
{
int err;
@@ -427,6 +444,7 @@ static int virtnet_probe(struct virtio_device *vdev)
#ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = virtnet_netpoll;
#endif
+ SET_ETHTOOL_OPS(dev, &virtnet_ethtool_ops);
SET_NETDEV_DEV(dev, &vdev->dev);
/* Do we support "hardware" checksums? */