From a1f1627540cde6622d61fca9cd11ea2d98f0c201 Mon Sep 17 00:00:00 2001
From: Yuiko Oshino <yuiko.oshino@microchip.com>
Date: Thu, 28 Oct 2021 11:21:05 -0400
Subject: [PATCH] net: ethernet: microchip: lan743x: Increase rx ring size to
improve rx performance
Increase the rx ring size (LAN743X_RX_RING_SIZE) to improve rx performance on some platforms.
Tested on x86 PC with EVB-LAN7430.
The iperf3.7 TCPIP improved from 881 Mbps to 922 Mbps, and UDP improved from 817 Mbps to 936 Mbps.
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/microchip/lan743x_main.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index 34c22eea01249..aaf7aaeaba0c0 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h
@@ -831,7 +831,7 @@ struct lan743x_rx_buffer_info {
unsigned int buffer_length;
};
-#define LAN743X_RX_RING_SIZE (65)
+#define LAN743X_RX_RING_SIZE (128)
#define RX_PROCESS_RESULT_NOTHING_TO_DO (0)
#define RX_PROCESS_RESULT_BUFFER_RECEIVED (1)
--
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