1
0

core: Add trace point for gso verification

This patch adds trace events to help with debug for gso feature
by identifying the packets (and their lengths) that are using
the segmentation offload feature.

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

CRs-Fixed: 2697145
Change-Id: I4f9786afa799cb1589bd07393c0922913037390d
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Este cometimento está contido em:
Subash Abhinov Kasiviswanathan
2020-05-28 22:14:41 -06:00
ascendente 2a1b9716b1
cometimento 17190b7e11
2 ficheiros modificados com 49 adições e 1 eliminações

Ver ficheiro

@@ -17,6 +17,8 @@
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/tcp.h>
#include <net/pkt_sched.h>
#include "rmnet_config.h"
#include "rmnet_handlers.h"
@@ -171,6 +173,25 @@ static u16 rmnet_vnd_select_queue(struct net_device *dev,
int boost_trigger = 0;
int txq = 0;
if (trace_print_skb_gso_enabled()) {
if (!skb_shinfo(skb)->gso_size)
goto skip_trace;
if (skb->protocol == htons(ETH_P_IP)) {
if (ip_hdr(skb)->protocol != IPPROTO_TCP)
goto skip_trace;
}
if (skb->protocol == htons(ETH_P_IPV6)) {
if (ipv6_hdr(skb)->nexthdr != IPPROTO_TCP)
goto skip_trace;
}
trace_print_skb_gso(skb, tcp_hdr(skb)->source,
tcp_hdr(skb)->dest);
}
skip_trace:
if (priv->real_dev)
txq = qmi_rmnet_get_queue(dev, skb);