qede: fix offload for IPIP tunnel packets

IPIP tunnels packets are unknown to device,
hence these packets are incorrectly parsed and
caused the packet corruption, so disable offlods
for such packets at run time.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Sudarsana Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Link: https://lore.kernel.org/r/20201221145530.7771-1-manishc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index a2494bf8500798f96eb3b854c95299bf58bf770a..ca0ee29a57b50ac4fd15d19be46ab6de0766a311 100644 (file)
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -1799,6 +1799,11 @@ netdev_features_t qede_features_check(struct sk_buff *skb,
                              ntohs(udp_hdr(skb)->dest) != gnv_port))
                                return features & ~(NETIF_F_CSUM_MASK |
                                                    NETIF_F_GSO_MASK);
+               } else if (l4_proto == IPPROTO_IPIP) {
+                       /* IPIP tunnels are unknown to the device or at least unsupported natively,
+                        * offloads for them can't be done trivially, so disable them for such skb.
+                        */
+                       return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
                }
        }