octeontx2-pf: Fix TSOv6 offload

commit de678ca38861f2eb58814048076dcf95ed1b5bf9 upstream.

HW adds segment size to the payload length
in the IPv6 header. Fix payload length to
just TCP header length instead of 'TCP header
size + IPv6 header size'.

Fixes: b82e703718f1 ("octeontx2-pf: TCP segmentation offload support")
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
index 7045fedfd73a04ba63cdb2d657754722f5291de8..7af223b0a37f51e129c5d28d9d500262a4c0b620 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c
@@ -652,9 +652,7 @@ static void otx2_sqe_add_ext(struct otx2_nic *pfvf, struct otx2_snd_queue *sq,
                                htons(ext->lso_sb - skb_network_offset(skb));
                } else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
                        ext->lso_format = pfvf->hw.lso_tsov6_idx;
-
-                       ipv6_hdr(skb)->payload_len =
-                               htons(ext->lso_sb - skb_network_offset(skb));
+                       ipv6_hdr(skb)->payload_len = htons(tcp_hdrlen(skb));
                } else if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) {
                        __be16 l3_proto = vlan_get_protocol(skb);
                        struct udphdr *udph = udp_hdr(skb);