netdev - [PATCH net-dev] net: Exposing more skb fields in netif_receive

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Date:   Wed, 9 Jun 2021 17:36:54 +0800
From:   Edward Wu <edwardwu@...ltek.com>
To:     <netdev@...r.kernel.org>
CC:     <nic_swsd@...ltek.com>, Edward Wu <edwardwu@...ltek.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net-dev] net: Exposing more skb fields in netif_receive_skb trace event

This exposing helps to analyze network behavior.

In performance tuning, we will check nr_frags to analyze
GRO aggregation behavior. By this commit, we can
enable netif_receive_skb trace event for dynamic debugging.

Signed-off-by: Edward Wu <edwardwu@...ltek.com>
---
 include/trace/events/net.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/trace/events/net.h b/include/trace/events/net.h
index 2399073c3afc..48aa7168b68f 100644
--- a/include/trace/events/net.h
+++ b/include/trace/events/net.h
@@ -147,13 +147,6 @@ DEFINE_EVENT(net_dev_template, net_dev_queue,
 	TP_ARGS(skb)
 );
 
-DEFINE_EVENT(net_dev_template, netif_receive_skb,
-
-	TP_PROTO(struct sk_buff *skb),
-
-	TP_ARGS(skb)
-);
-
 DEFINE_EVENT(net_dev_template, netif_rx,
 
 	TP_PROTO(struct sk_buff *skb),
@@ -239,6 +232,13 @@ DEFINE_EVENT(net_dev_rx_verbose_template, napi_gro_receive_entry,
 	TP_ARGS(skb)
 );
 
+DEFINE_EVENT(net_dev_rx_verbose_template, netif_receive_skb,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
 DEFINE_EVENT(net_dev_rx_verbose_template, netif_receive_skb_entry,
 
 	TP_PROTO(const struct sk_buff *skb),
-- 
2.17.1