include/trace/events/mptcp.h

Source file repositories/reference/linux-study-clean/include/trace/events/mptcp.h

File Facts

System
Linux kernel
Corpus path
include/trace/events/mptcp.h
Extension
.h
Size
7145 bytes
Lines
265
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

if (ssk && sk_fullsock(ssk)) {
			__entry->snd_wnd = tcp_sk(ssk)->snd_wnd;
			__entry->pace = READ_ONCE(ssk->sk_pacing_rate);
		} else {
			__entry->snd_wnd = 0;
			__entry->pace = 0;
		}

		if (ssk && sk_fullsock(ssk) && __entry->pace)
			__entry->ratio = div_u64((u64)ssk->sk_wmem_queued << 32, __entry->pace);
		else
			__entry->ratio = 0;
	),

	TP_printk("active=%d free=%d snd_wnd=%u pace=%u backup=%u ratio=%llu",
		  __entry->active, __entry->free,
		  __entry->snd_wnd, __entry->pace,
		  __entry->backup, __entry->ratio)
);

DECLARE_EVENT_CLASS(mptcp_dump_mpext,

	TP_PROTO(struct mptcp_ext *mpext),

	TP_ARGS(mpext),

	TP_STRUCT__entry(
		__field(u64, data_ack)
		__field(u64, data_seq)
		__field(u32, subflow_seq)
		__field(u16, data_len)
		__field(u16, csum)
		__field(u8, use_map)
		__field(u8, dsn64)
		__field(u8, data_fin)
		__field(u8, use_ack)
		__field(u8, ack64)
		__field(u8, mpc_map)
		__field(u8, frozen)
		__field(u8, reset_transient)
		__field(u8, reset_reason)
		__field(u8, csum_reqd)
		__field(u8, infinite_map)
	),

	TP_fast_assign(
		__entry->data_ack = mpext->ack64 ? mpext->data_ack : mpext->data_ack32;
		__entry->data_seq = mpext->data_seq;
		__entry->subflow_seq = mpext->subflow_seq;
		__entry->data_len = mpext->data_len;
		__entry->csum = (__force u16)mpext->csum;
		__entry->use_map = mpext->use_map;
		__entry->dsn64 = mpext->dsn64;
		__entry->data_fin = mpext->data_fin;
		__entry->use_ack = mpext->use_ack;
		__entry->ack64 = mpext->ack64;
		__entry->mpc_map = mpext->mpc_map;
		__entry->frozen = mpext->frozen;
		__entry->reset_transient = mpext->reset_transient;
		__entry->reset_reason = mpext->reset_reason;
		__entry->csum_reqd = mpext->csum_reqd;
		__entry->infinite_map = mpext->infinite_map;
	),

	TP_printk("data_ack=%llu data_seq=%llu subflow_seq=%u data_len=%u csum=%x use_map=%u dsn64=%u data_fin=%u use_ack=%u ack64=%u mpc_map=%u frozen=%u reset_transient=%u reset_reason=%u csum_reqd=%u infinite_map=%u",
		  __entry->data_ack, __entry->data_seq,
		  __entry->subflow_seq, __entry->data_len,
		  __entry->csum, __entry->use_map,
		  __entry->dsn64, __entry->data_fin,
		  __entry->use_ack, __entry->ack64,
		  __entry->mpc_map, __entry->frozen,
		  __entry->reset_transient, __entry->reset_reason,
		  __entry->csum_reqd, __entry->infinite_map)
);

DEFINE_EVENT(mptcp_dump_mpext, mptcp_sendmsg_frag,
	TP_PROTO(struct mptcp_ext *mpext),
	TP_ARGS(mpext));

DEFINE_EVENT(mptcp_dump_mpext, get_mapping_status,
	TP_PROTO(struct mptcp_ext *mpext),
	TP_ARGS(mpext));

TRACE_EVENT(ack_update_msk,

	TP_PROTO(u64 data_ack, u64 old_snd_una,
		 u64 new_snd_una, u64 new_wnd_end,
		 u64 msk_wnd_end),

	TP_ARGS(data_ack, old_snd_una,

Annotation

Implementation Notes