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ANDROID: GKI: net: add vendor hooks for link data path

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add vendor hooks to support link data path feature.
1.android_vh_dc_send_copy
For send copy pkt on the other ways
2.android_vh_dc_receive
For Drop duplicated pkt when dual connection connected

Bug: 343838581
Change-Id: I31acba1827205c366a4f54c4b940d4d8f2c21bff
Signed-off-by: Dezhi Huang <huangdezhi@hihonor.com>
(cherry picked from commit 86dd89554f8308fcd58af6156fd67ac2ac7facbf)
(cherry picked from commit f949397a1b86bdb461a14176db4a7cdc6cc63cbc)
This commit is contained in:
Dezhi Huang
2024-05-31 14:22:24 +08:00
committed by Treehugger Robot
parent 76532812c0
commit 8689d027d8
3 changed files with 15 additions and 0 deletions
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drivers/android/vendor_hooks.c
+2
View File
@@ -177,6 +177,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_mmap_file);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_file_open);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_v3_suspend);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_set_affinity);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dc_send_copy);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dc_receive);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_bpf_syscall);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rproc_recovery);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rproc_recovery_set);
include/trace/hooks/net.h
+5
View File
@@ -81,6 +81,11 @@ 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));
struct net_device;
DECLARE_HOOK(android_vh_dc_send_copy,
TP_PROTO(struct sk_buff *skb, struct net_device *dev), TP_ARGS(skb, dev));
DECLARE_HOOK(android_vh_dc_receive,
TP_PROTO(struct sk_buff *skb, int *flag), TP_ARGS(skb, flag));
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_NET_VH_H */
net/core/dev.c
+8
View File
@@ -3625,6 +3625,9 @@ static int xmit_one(struct sk_buff *skb, struct net_device *dev,
len = skb->len;
trace_net_dev_start_xmit(skb, dev);
trace_android_vh_dc_send_copy(skb, dev);
rc = netdev_start_xmit(skb, dev, txq, more);
trace_net_dev_xmit(skb, rc, dev, len);
@@ -5509,6 +5512,7 @@ static int __netif_receive_skb_core(struct sk_buff **pskb, bool pfmemalloc,
bool deliver_exact = false;
int ret = NET_RX_DROP;
__be16 type;
int flag = 0;
net_timestamp_check(!READ_ONCE(net_hotdata.tstamp_prequeue), skb);
@@ -5528,6 +5532,10 @@ another_round:
__this_cpu_inc(softnet_data.processed);
trace_android_vh_dc_receive(skb, &flag);
if (flag != 0)
return NET_RX_DROP;
if (static_branch_unlikely(&generic_xdp_needed_key)) {
int ret2;