From: Thomas Graf <tgraf@suug.ch>
Date: Tue, 17 Dec 2013 01:03:45 +0000 (-0800)
Subject: datapath: Compute checksum in skb_gso_segment() if needed
X-Git-Tag: sliver-openvswitch-2.1.90-1~10^2~150
X-Git-Url: http://git.onelab.eu/?a=commitdiff_plain;h=1d04cd4e722c63e8d5564c6c993b04a891f1e867;p=sliver-openvswitch.git

datapath: Compute checksum in skb_gso_segment() if needed

The copy & csum optimization is no longer present with zerocopy
enabled. Compute the checksum in skb_gso_segment() directly by
dropping the HW CSUM capability from the features passed in.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---

diff --git a/datapath/datapath.c b/datapath/datapath.c
index 608afda93..b42fd8bd4 100644
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -313,7 +313,7 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
 	struct sk_buff *segs, *nskb;
 	int err;
 
-	segs = __skb_gso_segment(skb, NETIF_F_SG | NETIF_F_HW_CSUM, false);
+	segs = __skb_gso_segment(skb, NETIF_F_SG, false);
 	if (IS_ERR(segs))
 		return PTR_ERR(segs);