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cxgb4: Fix netdev_features flag

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[ Upstream commit 90592b9a35836bacd34d92a3aba7958756b6a7c0 ]

GRO is not supported by Chelsio HW when rx_csum is disabled.
Update the netdev features flag when rx_csum is modified.

Signed-off-by: Arjun Vynipadath <arjun@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arjun Vynipadath 2017-05-30 13:30:24 +05:30 committed by Greg Kroah-Hartman
parent 6cd7b51283
commit 489b11ae30
1 changed files with 11 additions and 0 deletions
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11
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
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@ -2742,6 +2742,16 @@ static int cxgb_setup_tc(struct net_device *dev, u32 handle, __be16 proto,
return -EOPNOTSUPP;
}
static netdev_features_t cxgb_fix_features(struct net_device *dev,
netdev_features_t features)
{
/* Disable GRO, if RX_CSUM is disabled */
if (!(features & NETIF_F_RXCSUM))
features &= ~NETIF_F_GRO;
return features;
}
static const struct net_device_ops cxgb4_netdev_ops = {
.ndo_open = cxgb_open,
.ndo_stop = cxgb_close,
@ -2766,6 +2776,7 @@ static const struct net_device_ops cxgb4_netdev_ops = {
#endif
.ndo_set_tx_maxrate = cxgb_set_tx_maxrate,
.ndo_setup_tc = cxgb_setup_tc,
.ndo_fix_features = cxgb_fix_features,
};
#ifdef CONFIG_PCI_IOV