diff options
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 7ed87fb..e02d3b9 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -2049,6 +2049,23 @@ static int ibmvnic_change_mtu(struct net_device *netdev, int new_mtu) return wait_for_reset(adapter); } +static netdev_features_t ibmvnic_features_check(struct sk_buff *skb, + struct net_device *dev, + netdev_features_t features) +{ + /* Some backing hardware adapters can not + * handle packets with a MSS less than 224 + * or with only one segment. + */ + if (skb_is_gso(skb)) { + if (skb_shinfo(skb)->gso_size < 224 || + skb_shinfo(skb)->gso_segs == 1) + features &= ~NETIF_F_GSO_MASK; + } + + return features; +} + static const struct net_device_ops ibmvnic_netdev_ops = { .ndo_open = ibmvnic_open, .ndo_stop = ibmvnic_close, @@ -2061,6 +2078,7 @@ static const struct net_device_ops ibmvnic_netdev_ops = { .ndo_poll_controller = ibmvnic_netpoll_controller, #endif .ndo_change_mtu = ibmvnic_change_mtu, + .ndo_features_check = ibmvnic_features_check, }; /* ethtool functions */ |
