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| author | David Howells <dhowells@redhat.com> | 2016-09-17 10:49:13 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2016-09-17 11:24:03 +0100 |
| commit | f3639df2d90bc919328c459b3c7c49ed5667a52f (patch) | |
| tree | 3d8f8e234a88edd8d86c64656ca718fbf54ee248 /net/rxrpc | |
| parent | ec71eb9ada34f8d1a58b7c35d906c59411295445 (diff) | |
| download | linux-f3639df2d90bc919328c459b3c7c49ed5667a52f.tar.bz2 | |
rxrpc: Add a tracepoint to log ACK transmission
Add a tracepoint to log information about ACK transmission.
Signed-off-by: David Howels <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc')
| -rw-r--r-- | net/rxrpc/conn_event.c | 3 | ||||
| -rw-r--r-- | net/rxrpc/output.c | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c index a43f4c94a88d..9b19c51831aa 100644 --- a/net/rxrpc/conn_event.c +++ b/net/rxrpc/conn_event.c @@ -98,6 +98,9 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn, pkt.info.rwind = htonl(rxrpc_rx_window_size); pkt.info.jumbo_max = htonl(rxrpc_rx_jumbo_max); len += sizeof(pkt.ack) + sizeof(pkt.info); + + trace_rxrpc_tx_ack(NULL, chan->last_seq, 0, + RXRPC_ACK_DUPLICATE, 0); break; } diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c index 0b21ed859de7..2c9daeadce87 100644 --- a/net/rxrpc/output.c +++ b/net/rxrpc/output.c @@ -38,12 +38,14 @@ struct rxrpc_pkt_buffer { static size_t rxrpc_fill_out_ack(struct rxrpc_call *call, struct rxrpc_pkt_buffer *pkt) { + rxrpc_serial_t serial; rxrpc_seq_t hard_ack, top, seq; int ix; u32 mtu, jmax; u8 *ackp = pkt->acks; /* Barrier against rxrpc_input_data(). */ + serial = call->ackr_serial; hard_ack = READ_ONCE(call->rx_hard_ack); top = smp_load_acquire(&call->rx_top); @@ -51,7 +53,7 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_call *call, pkt->ack.maxSkew = htons(call->ackr_skew); pkt->ack.firstPacket = htonl(hard_ack + 1); pkt->ack.previousPacket = htonl(call->ackr_prev_seq); - pkt->ack.serial = htonl(call->ackr_serial); + pkt->ack.serial = htonl(serial); pkt->ack.reason = call->ackr_reason; pkt->ack.nAcks = top - hard_ack; @@ -75,6 +77,9 @@ static size_t rxrpc_fill_out_ack(struct rxrpc_call *call, pkt->ackinfo.rwind = htonl(call->rx_winsize); pkt->ackinfo.jumbo_max = htonl(jmax); + trace_rxrpc_tx_ack(call, hard_ack + 1, serial, call->ackr_reason, + top - hard_ack); + *ackp++ = 0; *ackp++ = 0; *ackp++ = 0; |