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d96a838a7c
This patch added a tracepoint in subflow_check_data_avail() to show the mapping status. Suggested-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
174 lines
4.3 KiB
C
174 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mptcp
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#if !defined(_TRACE_MPTCP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MPTCP_H
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#include <linux/tracepoint.h>
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#define show_mapping_status(status) \
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__print_symbolic(status, \
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{ 0, "MAPPING_OK" }, \
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{ 1, "MAPPING_INVALID" }, \
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{ 2, "MAPPING_EMPTY" }, \
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{ 3, "MAPPING_DATA_FIN" }, \
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{ 4, "MAPPING_DUMMY" })
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TRACE_EVENT(mptcp_subflow_get_send,
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TP_PROTO(struct mptcp_subflow_context *subflow),
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TP_ARGS(subflow),
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TP_STRUCT__entry(
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__field(bool, active)
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__field(bool, free)
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__field(u32, snd_wnd)
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__field(u32, pace)
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__field(u8, backup)
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__field(u64, ratio)
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),
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TP_fast_assign(
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struct sock *ssk;
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__entry->active = mptcp_subflow_active(subflow);
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__entry->backup = subflow->backup;
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if (subflow->tcp_sock && sk_fullsock(subflow->tcp_sock))
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__entry->free = sk_stream_memory_free(subflow->tcp_sock);
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else
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__entry->free = 0;
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ssk = mptcp_subflow_tcp_sock(subflow);
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if (ssk && sk_fullsock(ssk)) {
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__entry->snd_wnd = tcp_sk(ssk)->snd_wnd;
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__entry->pace = ssk->sk_pacing_rate;
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} else {
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__entry->snd_wnd = 0;
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__entry->pace = 0;
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}
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if (ssk && sk_fullsock(ssk) && __entry->pace)
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__entry->ratio = div_u64((u64)ssk->sk_wmem_queued << 32, __entry->pace);
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else
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__entry->ratio = 0;
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),
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TP_printk("active=%d free=%d snd_wnd=%u pace=%u backup=%u ratio=%llu",
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__entry->active, __entry->free,
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__entry->snd_wnd, __entry->pace,
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__entry->backup, __entry->ratio)
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);
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DECLARE_EVENT_CLASS(mptcp_dump_mpext,
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TP_PROTO(struct mptcp_ext *mpext),
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TP_ARGS(mpext),
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TP_STRUCT__entry(
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__field(u64, data_ack)
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__field(u64, data_seq)
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__field(u32, subflow_seq)
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__field(u16, data_len)
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__field(u8, use_map)
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__field(u8, dsn64)
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__field(u8, data_fin)
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__field(u8, use_ack)
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__field(u8, ack64)
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__field(u8, mpc_map)
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__field(u8, frozen)
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__field(u8, reset_transient)
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__field(u8, reset_reason)
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),
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TP_fast_assign(
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__entry->data_ack = mpext->ack64 ? mpext->data_ack : mpext->data_ack32;
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__entry->data_seq = mpext->data_seq;
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__entry->subflow_seq = mpext->subflow_seq;
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__entry->data_len = mpext->data_len;
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__entry->use_map = mpext->use_map;
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__entry->dsn64 = mpext->dsn64;
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__entry->data_fin = mpext->data_fin;
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__entry->use_ack = mpext->use_ack;
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__entry->ack64 = mpext->ack64;
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__entry->mpc_map = mpext->mpc_map;
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__entry->frozen = mpext->frozen;
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__entry->reset_transient = mpext->reset_transient;
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__entry->reset_reason = mpext->reset_reason;
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),
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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",
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__entry->data_ack, __entry->data_seq,
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__entry->subflow_seq, __entry->data_len,
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__entry->use_map, __entry->dsn64,
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__entry->data_fin, __entry->use_ack,
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__entry->ack64, __entry->mpc_map,
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__entry->frozen, __entry->reset_transient,
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__entry->reset_reason)
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);
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DEFINE_EVENT(mptcp_dump_mpext, get_mapping_status,
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TP_PROTO(struct mptcp_ext *mpext),
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TP_ARGS(mpext));
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TRACE_EVENT(ack_update_msk,
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TP_PROTO(u64 data_ack, u64 old_snd_una,
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u64 new_snd_una, u64 new_wnd_end,
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u64 msk_wnd_end),
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TP_ARGS(data_ack, old_snd_una,
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new_snd_una, new_wnd_end,
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msk_wnd_end),
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TP_STRUCT__entry(
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__field(u64, data_ack)
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__field(u64, old_snd_una)
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__field(u64, new_snd_una)
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__field(u64, new_wnd_end)
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__field(u64, msk_wnd_end)
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),
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TP_fast_assign(
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__entry->data_ack = data_ack;
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__entry->old_snd_una = old_snd_una;
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__entry->new_snd_una = new_snd_una;
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__entry->new_wnd_end = new_wnd_end;
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__entry->msk_wnd_end = msk_wnd_end;
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),
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TP_printk("data_ack=%llu old_snd_una=%llu new_snd_una=%llu new_wnd_end=%llu msk_wnd_end=%llu",
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__entry->data_ack, __entry->old_snd_una,
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__entry->new_snd_una, __entry->new_wnd_end,
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__entry->msk_wnd_end)
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);
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TRACE_EVENT(subflow_check_data_avail,
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TP_PROTO(__u8 status, struct sk_buff *skb),
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TP_ARGS(status, skb),
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TP_STRUCT__entry(
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__field(u8, status)
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__field(const void *, skb)
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),
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TP_fast_assign(
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__entry->status = status;
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__entry->skb = skb;
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),
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TP_printk("mapping_status=%s, skb=%p",
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show_mapping_status(__entry->status),
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__entry->skb)
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);
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#endif /* _TRACE_MPTCP_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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