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

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Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Or Gerlitz 2010-03-04 13:16:52 +00:00 committed by Roland Dreier
parent 0eddb519b9
commit d414371795
1 changed files with 20 additions and 0 deletions
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20
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
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@ -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,