4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arjun Vynipadath <arjun@xxxxxxxxxxx>
[ 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@xxxxxxxxxxx>
Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ganesh Goudar <ganeshgr@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2742,6 +2742,16 @@ static int cxgb_setup_tc(struct net_devi
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
#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