From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rusty Russell Subject: [PATCH 3/5] virtio net: Add ethtool ops for SG/GSO Date: Mon, 14 Jul 2008 22:40:49 -0500 Message-ID: <200807151340.49604.rusty@rustcorp.com.au> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: Herbert Xu , virtualization@lists.linux-foundation.org, netdev@vger.kernel.org To: Jeff Garzik Return-path: Received: from ozlabs.org ([203.10.76.45]:50397 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752607AbYGODlq (ORCPT ); Mon, 14 Jul 2008 23:41:46 -0400 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: From: Herbert Xu 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 (remove MTU setting) --- drivers/net/virtio_net.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -19,6 +19,7 @@ //#define DEBUG #include #include +#include #include #include #include @@ -352,6 +353,22 @@ static int virtnet_close(struct net_devi 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; @@ -371,6 +389,7 @@ static int virtnet_probe(struct virtio_d #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? */