netdev - [PATCHv4 net-next 2/8] {pktgen, xfrm} Add statistics counting when transforming

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Date:	Fri, 20 Dec 2013 10:33:28 +0800
From:	Fan Du <fan.du@...driver.com>
To:	<davem@...emloft.net>
CC:	<steffen.klassert@...unet.com>, <hadi@...erus.ca>,
	<netdev@...r.kernel.org>
Subject: [PATCHv4 net-next 2/8] {pktgen, xfrm} Add statistics counting when transforming

so /proc/net/xfrm_stat could give user clue about what's
wrong in this process.

Signed-off-by: Fan Du <fan.du@...driver.com>
---
 net/core/pktgen.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index b007586..156d57b 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2479,6 +2479,7 @@ static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev)
 {
 	struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x;
 	int err = 0;
+	struct net *net = dev_net(pkt_dev->odev);
 
 	if (!x)
 		return 0;
@@ -2488,12 +2489,15 @@ static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev)
 		return 0;
 
 	err = x->outer_mode->output(x, skb);
-	if (err)
+	if (err) {
+		XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEMODEERROR);
 		goto error;
+	}
 	err = x->type->output(x, skb);
-	if (err)
+	if (err) {
+		XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEPROTOERROR);
 		goto error;
-
+	}
 	spin_lock_bh(&x->lock);
 	x->curlft.bytes += skb->len;
 	x->curlft.packets++;
-- 
1.7.9.5

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