[PATCH net 5/5] qlcnic: Implement ndo_gso_check()
From: Joe Stringer <hidden>
Date: 2014-11-04 22:04:07
Also in:
lkml
Subsystem:
networking drivers, qlogic qlcnic (1/10)gb ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Shahed Shaikh, Manish Chopra, Linus Torvalds
ndo_gso_check() was recently introduced to allow NICs to report the offloading support that they have on a per-skb basis. Add an implementation for this driver which checks for something that looks like VXLAN. Implementation shamelessly stolen from Tom Herbert: http://thread.gmane.org/gmane.linux.network/332428/focus=333111 Signed-off-by: Joe Stringer <redacted> --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index f5e29f7..6184f47 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c@@ -505,6 +505,17 @@ static void qlcnic_del_vxlan_port(struct net_device *netdev, } #endif +static bool qlcnic_gso_check(struct sk_buff *skb, struct net_device *dev) +{ + if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) && + (skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB) || + skb_inner_mac_header(skb) - skb_transport_header(skb) != 16)) + return false; + + return true; +} + static const struct net_device_ops qlcnic_netdev_ops = { .ndo_open = qlcnic_open, .ndo_stop = qlcnic_close,
@@ -537,6 +548,7 @@ static const struct net_device_ops qlcnic_netdev_ops = { .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan, .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk, #endif + .ndo_gso_check = qlcnic_gso_check, }; static const struct net_device_ops qlcnic_netdev_failed_ops = {
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1.7.10.4