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authorDavid Howells <dhowells@redhat.com>2024-01-29 16:51:30 +0300
committerDavid Howells <dhowells@redhat.com>2024-02-29 18:49:56 +0300
commitba132d841d5637655273c28d30751c8d18ac189b (patch)
tree2e1dea9c82809661a746a33b0769ca231c4647c4 /net/rxrpc/txbuf.c
parent489645d3f1332f65a9337cb31c0ee12a1259a484 (diff)
downloadlinux-ba132d841d5637655273c28d30751c8d18ac189b.tar.xz
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 'net/rxrpc/txbuf.c')
-rw-r--r--net/rxrpc/txbuf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rxrpc/txbuf.c b/net/rxrpc/txbuf.c
index d43be8512386..f2903c81cf5b 100644
--- a/net/rxrpc/txbuf.c
+++ b/net/rxrpc/txbuf.c
@@ -34,6 +34,7 @@ struct rxrpc_txbuf *rxrpc_alloc_txbuf(struct rxrpc_call *call, u8 packet_type,
txb->flags = 0;
txb->ack_why = 0;
txb->seq = call->tx_prepared + 1;
+ txb->serial = 0;
txb->wire.epoch = htonl(call->conn->proto.epoch);
txb->wire.cid = htonl(call->cid);
txb->wire.callNumber = htonl(call->call_id);