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authorRick Jones <rick.jones2@hp.com>2011-10-19 08:10:59 +0000
committerDavid S. Miller <davem@davemloft.net>2011-10-24 02:07:21 -0400
commit8f9f4668b37bcc877156dd525a856055735c8d24 (patch)
treea9d0a7cc6729884564f5d2bfb8edbdcc678b3f1c /drivers/net/virtio_net.c
parentca35a0ef85e8ed6df6d5ab01fb6c3530cca0c469 (diff)
Add ethtool -g support to virtio_net
Add support for reporting ring sizes via ethtool -g to the virtio_net driver. Signed-off-by: Rick Jones <rick.jones2@hp.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 765ab9ac9d17..91039ab16728 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -877,8 +877,21 @@ static void virtnet_vlan_rx_kill_vid(struct net_device *dev, u16 vid)
dev_warn(&dev->dev, "Failed to kill VLAN ID %d.\n", vid);
}
+static void virtnet_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
+
+ ring->rx_max_pending = virtqueue_get_vring_size(vi->rvq);
+ ring->tx_max_pending = virtqueue_get_vring_size(vi->svq);
+ ring->rx_pending = ring->rx_max_pending;
+ ring->tx_pending = ring->tx_max_pending;
+
+}
+
static const struct ethtool_ops virtnet_ethtool_ops = {
.get_link = ethtool_op_get_link,
+ .get_ringparam = virtnet_get_ringparam,
};
#define MIN_MTU 68