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1 | /* SPDX-License-Identifier: GPL-2.0 */ | |
2 | #undef TRACE_SYSTEM | |
3 | #define TRACE_SYSTEM mptcp | |
4 | ||
5 | #if !defined(_TRACE_MPTCP_H) || defined(TRACE_HEADER_MULTI_READ) | |
6 | #define _TRACE_MPTCP_H | |
7 | ||
8 | #include <linux/tracepoint.h> | |
9 | ||
10 | TRACE_EVENT(mptcp_subflow_get_send, | |
11 | ||
12 | TP_PROTO(struct mptcp_subflow_context *subflow), | |
13 | ||
14 | TP_ARGS(subflow), | |
15 | ||
16 | TP_STRUCT__entry( | |
17 | __field(bool, active) | |
18 | __field(bool, free) | |
19 | __field(u32, snd_wnd) | |
20 | __field(u32, pace) | |
21 | __field(u8, backup) | |
22 | __field(u64, ratio) | |
23 | ), | |
24 | ||
25 | TP_fast_assign( | |
26 | struct sock *ssk; | |
27 | ||
28 | __entry->active = mptcp_subflow_active(subflow); | |
29 | __entry->backup = subflow->backup; | |
30 | ||
31 | if (subflow->tcp_sock && sk_fullsock(subflow->tcp_sock)) | |
32 | __entry->free = sk_stream_memory_free(subflow->tcp_sock); | |
33 | else | |
34 | __entry->free = 0; | |
35 | ||
36 | ssk = mptcp_subflow_tcp_sock(subflow); | |
37 | if (ssk && sk_fullsock(ssk)) { | |
38 | __entry->snd_wnd = tcp_sk(ssk)->snd_wnd; | |
39 | __entry->pace = ssk->sk_pacing_rate; | |
40 | } else { | |
41 | __entry->snd_wnd = 0; | |
42 | __entry->pace = 0; | |
43 | } | |
44 | ||
45 | if (ssk && sk_fullsock(ssk) && __entry->pace) | |
46 | __entry->ratio = div_u64((u64)ssk->sk_wmem_queued << 32, __entry->pace); | |
47 | else | |
48 | __entry->ratio = 0; | |
49 | ), | |
50 | ||
51 | TP_printk("active=%d free=%d snd_wnd=%u pace=%u backup=%u ratio=%llu", | |
52 | __entry->active, __entry->free, | |
53 | __entry->snd_wnd, __entry->pace, | |
54 | __entry->backup, __entry->ratio) | |
55 | ); | |
56 | ||
57 | #endif /* _TRACE_MPTCP_H */ | |
58 | ||
59 | /* This part must be outside protection */ | |
60 | #include <trace/define_trace.h> |