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-rw-r--r--include/trace/events/rxrpc.h27
-rw-r--r--net/rxrpc/input.c2
2 files changed, 29 insertions, 0 deletions
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 85e0148c88a8..15ba7387c243 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -707,6 +707,33 @@ TRACE_EVENT(rxrpc_rx_abort,
__entry->abort_code)
);
+TRACE_EVENT(rxrpc_rx_rwind_change,
+ TP_PROTO(struct rxrpc_call *call, rxrpc_serial_t serial,
+ u32 rwind, bool wake),
+
+ TP_ARGS(call, serial, rwind, wake),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_call *, call )
+ __field(rxrpc_serial_t, serial )
+ __field(u32, rwind )
+ __field(bool, wake )
+ ),
+
+ TP_fast_assign(
+ __entry->call = call;
+ __entry->serial = serial;
+ __entry->rwind = rwind;
+ __entry->wake = wake;
+ ),
+
+ TP_printk("c=%p %08x rw=%u%s",
+ __entry->call,
+ __entry->serial,
+ __entry->rwind,
+ __entry->wake ? " wake" : "")
+ );
+
TRACE_EVENT(rxrpc_tx_data,
TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t seq,
rxrpc_serial_t serial, u8 flags, bool retrans, bool lose),
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 241e989597f2..45dba732a3b4 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -665,6 +665,8 @@ static void rxrpc_input_ackinfo(struct rxrpc_call *call, struct sk_buff *skb,
rwind = RXRPC_RXTX_BUFF_SIZE - 1;
if (rwind > call->tx_winsize)
wake = true;
+ trace_rxrpc_rx_rwind_change(call, sp->hdr.serial,
+ ntohl(ackinfo->rwind), wake);
call->tx_winsize = rwind;
}