allow disabling/enabling TSO on the fly by ethtool
Signed-off-by: Or Gerlitz <[email protected]>
---
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
Index: linux-2.6.33/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
===================================================================
--- linux-2.6.33.orig/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ linux-2.6.33/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -49,6 +49,24 @@ static u32 ipoib_get_rx_csum(struct net_
!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 +149,7 @@ static void ipoib_get_ethtool_stats(stru
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,
--
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