[PATCH 5.8 080/124] octeontx2-pf: Fix TCP/UDP checksum offload for IPv6 frames

From: Greg Kroah-Hartman
Date: Mon Oct 12 2020 - 09:53:20 EST


From: Geetha sowjanya <gakula@xxxxxxxxxxx>

[ Upstream commit 89eae5e87b4fa799726a3e8911c90d418cb5d2b1 ]

For TCP/UDP checksum offload feature in Octeontx2
expects L3TYPE to be set irrespective of IP header
checksum is being offloaded or not. Currently for
IPv6 frames L3TYPE is not being set resulting in
packet drop with checksum error. This patch fixes
this issue.

Fixes: 3ca6c4c88 ("octeontx2-pf: Add packet transmission support")
Signed-off-by: Geetha sowjanya <gakula@xxxxxxxxxxx>
Signed-off-by: Sunil Goutham <sgoutham@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
index b04f5429d72d9..334eab976ee4a 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
@@ -524,6 +524,7 @@ static void otx2_sqe_add_hdr(struct otx2_nic *pfvf, struct otx2_snd_queue *sq,
sqe_hdr->ol3type = NIX_SENDL3TYPE_IP4_CKSUM;
} else if (skb->protocol == htons(ETH_P_IPV6)) {
proto = ipv6_hdr(skb)->nexthdr;
+ sqe_hdr->ol3type = NIX_SENDL3TYPE_IP6;
}

if (proto == IPPROTO_TCP)
--
2.25.1