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ANDROID: GKI: net: add vendor hook to check if out of order occurs

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1.android_vh_tcp_rcv_established_fast_path
Check if there are received packets out of order for the fast path.
2.android_vh_tcp_rcv_established_slow_path
Check if there are received packets out of order for the slow path.

Bug: 378600969
Change-Id: Ifad16bd9523ac0c3cc0c0c98dfb0884635f3a537
Signed-off-by: Chenghao Zhao <zhaochenghao@honor.com>
(cherry picked from commit c6058890859531826c574aaee2ffd2ed95c38e59)
This commit is contained in:
Chenghao Zhao
2024-11-12 21:17:37 +08:00
committed by Treehugger Robot
parent cbd012971e
commit 0defa67859
3 changed files with 9 additions and 0 deletions
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drivers/android/vendor_hooks.c
+2
View File
@@ -194,6 +194,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tcp_clean_rtx_queue);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tcp_rcv_synack);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_udp_unicast_rcv_skb);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_udp6_unicast_rcv_skb);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tcp_rcv_established_fast_path);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_tcp_rcv_established_slow_path);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpu_capacity_show);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_init);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_wake);
include/trace/hooks/net.h
+4
View File
@@ -34,6 +34,10 @@ DECLARE_HOOK(android_vh_udp_unicast_rcv_skb,
DECLARE_HOOK(android_vh_udp6_unicast_rcv_skb,
TP_PROTO(struct sk_buff *skb, struct sock *sk),
TP_ARGS(skb, sk));
DECLARE_HOOK(android_vh_tcp_rcv_established_fast_path,
TP_PROTO(struct sock *sk), TP_ARGS(sk));
DECLARE_HOOK(android_vh_tcp_rcv_established_slow_path,
TP_PROTO(struct sock *sk), TP_ARGS(sk));
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_NET_VH_H */
net/ipv4/tcp_input.c
+3
View File
@@ -6228,6 +6228,7 @@ void tcp_rcv_established(struct sock *sk, struct sk_buff *skb)
__tcp_ack_snd_check(sk, 0);
no_ack:
trace_android_vh_tcp_rcv_established_fast_path(sk);
if (eaten)
kfree_skb_partial(skb, fragstolen);
tcp_data_ready(sk);
@@ -6267,6 +6268,8 @@ step5:
tcp_data_snd_check(sk);
tcp_ack_snd_check(sk);
trace_android_vh_tcp_rcv_established_slow_path(sk);
return;
csum_error: