[PATCH AUTOSEL 4.19 06/16] qede: fix offload for IPIP tunnel packets

Sasha Levin
2021-01-12T13:08:14Z

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 a96da16f34049..1976279800cd8 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -1747,6 +1747,11 @@ 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