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    Subject[PATCH AUTOSEL 5.10 16/51] qede: fix offload for IPIP tunnel packets
    Date
    From: Manish Chopra <manishc@marvell.com>

    [ Upstream commit 5d5647dad259bb416fd5d3d87012760386d97530 ]

    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>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/qlogic/qede/qede_fp.c | 5 +++++
    1 file changed, 5 insertions(+)

    diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
    index a2494bf850079..ca0ee29a57b50 100644
    --- 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);
    }
    }

    --
    2.27.0
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