netdev - [RFC PATCH 08/16] gtp: set dev features to enable GSO

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Date:   Sat, 23 Jan 2021 20:59:08 +0100
From:   Jonas Bonn <jonas@...rbonn.se>
To:     laforge@...monks.org, netdev@...r.kernel.org, pbshelar@...com,
        kuba@...nel.org
Cc:     pablo@...filter.org, Jonas Bonn <jonas@...rbonn.se>
Subject: [RFC PATCH 08/16] gtp: set dev features to enable GSO

Signed-off-by: Jonas Bonn <jonas@...rbonn.se>
---
 drivers/net/gtp.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 4a3a52970856..df2f227680eb 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -532,7 +532,11 @@ static int gtp_xmit_ip4(struct sk_buff *skb, struct net_device *dev)
 	if (unlikely(r))
 		goto err_rt;
 
-	skb_reset_inner_headers(skb);
+	r = udp_tunnel_handle_offloads(skb, true);
+	if (unlikely(r))
+		goto err_rt;
+
+	skb_set_inner_protocol(skb, skb->protocol);
 
 	gtp_push_header(skb, pctx, &port);
 
@@ -614,6 +618,8 @@ static void gtp_link_setup(struct net_device *dev)
 
 	dev->priv_flags	|= IFF_NO_QUEUE;
 	dev->features	|= NETIF_F_LLTX;
+	dev->hw_features |= NETIF_F_SG | NETIF_F_GSO_SOFTWARE | NETIF_F_HW_CSUM;
+	dev->features	|= NETIF_F_SG | NETIF_F_GSO_SOFTWARE | NETIF_F_HW_CSUM;
 	netif_keep_dst(dev);
 
 	dev->needed_headroom	= LL_MAX_HEADER + max_gtp_header_len;
-- 
2.27.0