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Commit 76da2f53 authored by Subash Abhinov Kasiviswanathan's avatar Subash Abhinov Kasiviswanathan Committed by Gerrit - the friendly Code Review server
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skb: printing port numbers with gso trace events 



Adding source and destination port number info
in the gso trace events to differentiate between
the flows.

CRs-Fixed: 2333588
Change-Id: Idbae7f95dfd56293805b58e3c6626f5f6e07d08a
Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
parent 875de7dd

include/trace/events/skb.h

+9 −4
Original line number Diff line number Diff line
@@ -53,24 +53,29 @@ TRACE_EVENT(consume_skb, 


TRACE_EVENT(print_skb_gso,



	TP_PROTO(struct sk_buff *skb),

	TP_PROTO(struct sk_buff *skb, __be16 src, __be16 dest),



	TP_ARGS(skb),

	TP_ARGS(skb, src, dest),



	TP_STRUCT__entry(

		__field(void *,	skbaddr)

		__field(int, len)

		__field(int, data_len)

		__field(__be16, src)

		__field(__be16, dest)

	),



	TP_fast_assign(

		__entry->skbaddr = skb;

		__entry->len = skb->len;

		__entry->data_len = skb->data_len;

		__entry->src = src;

		__entry->dest = dest;

	),



	TP_printk("GSO: skbaddr=%p, len=%d, data_len=%d",

		__entry->skbaddr, __entry->len, __entry->data_len)

	TP_printk("GSO: skbaddr=%pK, len=%d, data_len=%d, src=%u, dest=%u",

		__entry->skbaddr, __entry->len, __entry->data_len,

		be16_to_cpu(__entry->src), be16_to_cpu(__entry->dest))

);



TRACE_EVENT(skb_copy_datagram_iovec,

net/core/dev.c

+6 −1
Original line number Diff line number Diff line
@@ -145,6 +145,8 @@ 
#include <linux/sctp.h>

#include <net/udp_tunnel.h>

#include <linux/net_namespace.h>

#include <linux/tcp.h>

#include <net/tcp.h>



#include "net-sysfs.h"
@@ -3305,7 +3307,10 @@ static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device 
	if (netif_needs_gso(skb, features)) {

		struct sk_buff *segs;



		trace_print_skb_gso(skb);

		__be16 src_port = tcp_hdr(skb)->source;

		__be16 dest_port = tcp_hdr(skb)->dest;



		trace_print_skb_gso(skb, src_port, dest_port);

		segs = skb_gso_segment(skb, features);

		if (IS_ERR(segs)) {

			goto out_kfree_skb;