rxrpc: Increase the size of a call's Rx window

Increase the size of a call's Rx window from 32 to 63 - ie. one less than
the size of the ring buffer.  This makes large data transfers perform
better when the Tx window on the other side is around 64 (as is the case
with Auristor's YFS fileserver).

If the server window size is ~32 or smaller, this should make no
difference.

Signed-off-by: David Howells <dhowells@redhat.com>

diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 7eee955a768a9a5049b540aab65e020b6710afb8..e791d35ee34b5b3c8a3cc0a871ce83cabf2e504d 100644 (file)
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -589,7 +589,7 @@ struct rxrpc_call {
         */
 #define RXRPC_RXTX_BUFF_SIZE   64
 #define RXRPC_RXTX_BUFF_MASK   (RXRPC_RXTX_BUFF_SIZE - 1)
-#define RXRPC_INIT_RX_WINDOW_SIZE 32
+#define RXRPC_INIT_RX_WINDOW_SIZE 63
        struct sk_buff          **rxtx_buffer;
        u8                      *rxtx_annotations;
 #define RXRPC_TX_ANNO_ACK      0