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Commit 489b11ae authored by Arjun Vynipadath's avatar Arjun Vynipadath Committed by Greg Kroah-Hartman
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cxgb4: Fix netdev_features flag 




[ 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: default avatarArjun Vynipadath <arjun@chelsio.com>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6cd7b512

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

+11 −0
Original line number Diff line number Diff line
@@ -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