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author | David S. Miller <davem@davemloft.net> | 2021-04-17 03:10:40 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2021-04-17 03:10:40 +0300 |
commit | 474f459360399c5becfd0f189a8894e9e17ad3d3 (patch) | |
tree | 4ac2215add7c9db2a6b0ffcb02f1d63481c82b7b /include | |
parent | 820dd7a244fe2d990d414172110f36cf5e8a936a (diff) | |
parent | 442279154c73bc681e5346bdd1270a628dfdfdc7 (diff) | |
download | linux-474f459360399c5becfd0f189a8894e9e17ad3d3.tar.xz |
Merge branch 'mptcp-fixes-and-tracepoints'
Mat Martineau says:
====================
mptcp: Fixes and tracepoints from the mptcp tree
Here's one more batch of changes that we've tested out in the MPTCP tree.
Patch 1 makes the MPTCP KUnit config symbol more consistent with other
subsystems.
Patch 2 fixes a couple of format specifiers in pr_debug()s
Patches 3-7 add four helpful tracepoints for MPTCP.
Patch 8 is a one-line refactor to use an available helper macro.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r-- | include/trace/events/mptcp.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/include/trace/events/mptcp.h b/include/trace/events/mptcp.h new file mode 100644 index 000000000000..775a46d0b0f0 --- /dev/null +++ b/include/trace/events/mptcp.h @@ -0,0 +1,173 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mptcp + +#if !defined(_TRACE_MPTCP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_MPTCP_H + +#include <linux/tracepoint.h> + +#define show_mapping_status(status) \ + __print_symbolic(status, \ + { 0, "MAPPING_OK" }, \ + { 1, "MAPPING_INVALID" }, \ + { 2, "MAPPING_EMPTY" }, \ + { 3, "MAPPING_DATA_FIN" }, \ + { 4, "MAPPING_DUMMY" }) + +TRACE_EVENT(mptcp_subflow_get_send, + + TP_PROTO(struct mptcp_subflow_context *subflow), + + TP_ARGS(subflow), + + TP_STRUCT__entry( + __field(bool, active) + __field(bool, free) + __field(u32, snd_wnd) + __field(u32, pace) + __field(u8, backup) + __field(u64, ratio) + ), + + TP_fast_assign( + struct sock *ssk; + + __entry->active = mptcp_subflow_active(subflow); + __entry->backup = subflow->backup; + + if (subflow->tcp_sock && sk_fullsock(subflow->tcp_sock)) + __entry->free = sk_stream_memory_free(subflow->tcp_sock); + else + __entry->free = 0; + + ssk = mptcp_subflow_tcp_sock(subflow); + if (ssk && sk_fullsock(ssk)) { + __entry->snd_wnd = tcp_sk(ssk)->snd_wnd; + __entry->pace = 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(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) + ), + + 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->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; + ), + + TP_printk("data_ack=%llu data_seq=%llu subflow_seq=%u data_len=%u use_map=%u dsn64=%u data_fin=%u use_ack=%u ack64=%u mpc_map=%u frozen=%u reset_transient=%u reset_reason=%u", + __entry->data_ack, __entry->data_seq, + __entry->subflow_seq, __entry->data_len, + __entry->use_map, __entry->dsn64, + __entry->data_fin, __entry->use_ack, + __entry->ack64, __entry->mpc_map, + __entry->frozen, __entry->reset_transient, + __entry->reset_reason) +); + +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, + new_snd_una, new_wnd_end, + msk_wnd_end), + + TP_STRUCT__entry( + __field(u64, data_ack) + __field(u64, old_snd_una) + __field(u64, new_snd_una) + __field(u64, new_wnd_end) + __field(u64, msk_wnd_end) + ), + + TP_fast_assign( + __entry->data_ack = data_ack; + __entry->old_snd_una = old_snd_una; + __entry->new_snd_una = new_snd_una; + __entry->new_wnd_end = new_wnd_end; + __entry->msk_wnd_end = msk_wnd_end; + ), + + TP_printk("data_ack=%llu old_snd_una=%llu new_snd_una=%llu new_wnd_end=%llu msk_wnd_end=%llu", + __entry->data_ack, __entry->old_snd_una, + __entry->new_snd_una, __entry->new_wnd_end, + __entry->msk_wnd_end) +); + +TRACE_EVENT(subflow_check_data_avail, + + TP_PROTO(__u8 status, struct sk_buff *skb), + + TP_ARGS(status, skb), + + TP_STRUCT__entry( + __field(u8, status) + __field(const void *, skb) + ), + + TP_fast_assign( + __entry->status = status; + __entry->skb = skb; + ), + + TP_printk("mapping_status=%s, skb=%p", + show_mapping_status(__entry->status), + __entry->skb) +); + +#endif /* _TRACE_MPTCP_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |