[PATCH net-next] net: ethernet: microchip: lan743x: Increase rx ring size to improve rx performance

[PATCH net-next] net: ethernet: microchip: lan743x: Increase rx ring size to improve rx performance

[Yuiko Oshino]

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>
---
 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 34c22eea0124..aaf7aaeaba0c 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)
-- 
2.25.1

Re: [PATCH net-next] net: ethernet: microchip: lan743x: Increase rx ring size to improve rx performance

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@davemloft.net>:

On Thu, 28 Oct 2021 11:21:05 -0400 you wrote:
> 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>
> ---
>  drivers/net/ethernet/microchip/lan743x_main.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Here is the summary with links:
  - [net-next] net: ethernet: microchip: lan743x: Increase rx ring size to improve rx performance
    https://git.kernel.org/netdev/net-next/c/a1f1627540cd

You are awesome, thank you!
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