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virtio net: Add ethtool ops for SG/GSO

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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)
This commit is contained in:
Herbert Xu
2008-04-18 11:21:42 +08:00
committed by Rusty Russell
parent 9953ca6cb7
commit a9ea3fc6f2
1 changed files with 18 additions and 0 deletions
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18
drivers/net/virtio_net.c
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@@ -19,6 +19,7 @@
//#define DEBUG //#define DEBUG
#include <linux/netdevice.h> #include <linux/netdevice.h>
#include <linux/etherdevice.h> #include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/virtio.h> #include <linux/virtio.h>
#include <linux/virtio_net.h> #include <linux/virtio_net.h>
@@ -408,6 +409,22 @@ static int virtnet_close(struct net_device *dev)
return 0; 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) static int virtnet_probe(struct virtio_device *vdev)
{ {
int err; int err;
@@ -427,6 +444,7 @@ static int virtnet_probe(struct virtio_device *vdev)
#ifdef CONFIG_NET_POLL_CONTROLLER #ifdef CONFIG_NET_POLL_CONTROLLER
dev->poll_controller = virtnet_netpoll; dev->poll_controller = virtnet_netpoll;
#endif #endif
SET_ETHTOOL_OPS(dev, &virtnet_ethtool_ops);
SET_NETDEV_DEV(dev, &vdev->dev); SET_NETDEV_DEV(dev, &vdev->dev);
/* Do we support "hardware" checksums? */ /* Do we support "hardware" checksums? */