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| author | David Howells <dhowells@redhat.com> | 2024-01-29 13:51:30 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2024-02-29 15:49:56 +0000 |
| commit | ba132d841d5637655273c28d30751c8d18ac189b (patch) | |
| tree | 2e1dea9c82809661a746a33b0769ca231c4647c4 /include/trace/events/rxrpc.h | |
| parent | 489645d3f1332f65a9337cb31c0ee12a1259a484 (diff) | |
| download | linux-ba132d841d5637655273c28d30751c8d18ac189b.tar.gz linux-ba132d841d5637655273c28d30751c8d18ac189b.tar.bz2 linux-ba132d841d5637655273c28d30751c8d18ac189b.zip | |
rxrpc: Record the Tx serial in the rxrpc_txbuf and retransmit trace
Each Rx protocol packet contains a per-connection monotonically increasing
serial number used to correlate outgoing messages with their replies -
something that can be used for RTT calculation.
Note this value in the rxrpc_txbuf struct in addition to the wire header
and then log it in the rxrpc_retransmit trace for reference.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
Diffstat (limited to 'include/trace/events/rxrpc.h')
| -rw-r--r-- | include/trace/events/rxrpc.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h index 87b8de9b6c1c..9add56980485 100644 --- a/include/trace/events/rxrpc.h +++ b/include/trace/events/rxrpc.h @@ -1506,25 +1506,29 @@ TRACE_EVENT(rxrpc_drop_ack, ); TRACE_EVENT(rxrpc_retransmit, - TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t seq, s64 expiry), + TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t seq, + rxrpc_serial_t serial, s64 expiry), - TP_ARGS(call, seq, expiry), + TP_ARGS(call, seq, serial, expiry), TP_STRUCT__entry( __field(unsigned int, call) __field(rxrpc_seq_t, seq) + __field(rxrpc_serial_t, serial) __field(s64, expiry) ), TP_fast_assign( __entry->call = call->debug_id; __entry->seq = seq; + __entry->serial = serial; __entry->expiry = expiry; ), - TP_printk("c=%08x q=%x xp=%lld", + TP_printk("c=%08x q=%x r=%x xp=%lld", __entry->call, __entry->seq, + __entry->serial, __entry->expiry) ); |