Commit a9ea3fc6 authored by Herbert Xu's avatar Herbert Xu Committed by Rusty Russell
Browse files

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)
parent 9953ca6c

drivers/net/virtio_net.c

+18 −0
Original line number Diff line number Diff line
@@ -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? */

CRA Git | Maintained and supported by SUSTech CRA and CCSE