Commit d4143717 authored by Or Gerlitz's avatar Or Gerlitz Committed by Roland Dreier
Browse files

IPoIB: Allow disabling/enabling TSO on the fly through ethtool 



Signed-off-by: default avatarOr Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 0eddb519

drivers/infiniband/ulp/ipoib/ipoib_ethtool.c

+20 −0
Original line number Diff line number Diff line
@@ -49,6 +49,25 @@ static u32 ipoib_get_rx_csum(struct net_device *dev) 
		!test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);

}



static int ipoib_set_tso(struct net_device *dev, u32 data)

{

	struct ipoib_dev_priv *priv = netdev_priv(dev);



	if (data) {

		if (!test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags) &&

		    (dev->features & NETIF_F_SG) &&

		    (priv->hca_caps & IB_DEVICE_UD_TSO)) {

			dev->features |= NETIF_F_TSO;

		} else {

			ipoib_warn(priv, "can't set TSO on\n");

			return -EOPNOTSUPP;

		}

	} else

		dev->features &= ~NETIF_F_TSO;



	return 0;

}



static int ipoib_get_coalesce(struct net_device *dev,

			      struct ethtool_coalesce *coal)

{
@@ -131,6 +150,7 @@ static void ipoib_get_ethtool_stats(struct net_device *dev, 
static const struct ethtool_ops ipoib_ethtool_ops = {

	.get_drvinfo		= ipoib_get_drvinfo,

	.get_rx_csum		= ipoib_get_rx_csum,

	.set_tso		= ipoib_set_tso,

	.get_coalesce		= ipoib_get_coalesce,

	.set_coalesce		= ipoib_set_coalesce,

	.get_flags		= ethtool_op_get_flags,