[MPTCP] Re: [MPTCP][PATCH mptcp-next 2/3] mptcp: add tracepoint for get_mapping_status

This patch added the tracepoint for the mapping status function get_mapping_status. Signed-off-by: Geliang Tang <geliangtang(a)gmail.com&gt; --- include/trace/events/mptcp.h | 51 ++++++++++++++++++++++++++++++++++++ net/mptcp/subflow.c | 13 +++------ 2 files changed, 54 insertions(+), 10 deletions(-) diff --git a/include/trace/events/mptcp.h b/include/trace/events/mptcp.h index b36b308f48e2..f06a7d33b237 100644 --- a/include/trace/events/mptcp.h +++ b/include/trace/events/mptcp.h @@ -39,6 +39,57 @@ TRACE_EVENT(mptcp_subflow_get_send, __entry->ssk_1, __entry->ratio_1) ); +TRACE_EVENT(get_mapping_status, + + TP_PROTO(struct mptcp_ext *mpext), + + TP_ARGS(mpext), + + TP_STRUCT__entry( + __array(char, str, 128) + ), + + TP_fast_assign( + memset(__entry->str, 0, 128); + + if (!mpext) { + sprintf(__entry->str, "mpext is NULL"); + } else { + if (!mpext->data_len) { + sprintf(__entry->str, "Infinite mapping not handled"); + } else { + if (mpext->data_fin == 1) { + if (mpext->data_len == 1) { + sprintf(__entry->str, + "data_fin: with no payload seq=%llu", + mpext->data_seq); + } else { + sprintf(__entry->str, + "data_fin: with mapping seq=%llu dsn64=%d", + mpext->data_seq + mpext->data_len - 1, + mpext->dsn64); + } + } + + if (mpext->use_map) { + sprintf(__entry->str + strlen(__entry->str), + "use_map: dsn64=%d data_seq=%llu subflow_seq=%u data_len=%u", + mpext->dsn64, mpext->data_seq, + mpext->subflow_seq, mpext->data_len); + } + + if (mpext->use_ack) { + sprintf(__entry->str + strlen(__entry->str), + "use_ack: ack64=%d data_ack=%llu", + mpext->ack64, mpext->data_ack); + } + } + } + ),