[-next v1 1/1] riscv: dts: starfive: jh7110: Fix GMAC configuration

From: Samin Guo
Date: Thu Aug 10 2023 - 03:47:14 EST


Fixed configuration to improve the speed of TCP RX.

Before:
# iperf3 -s
-----------------------------------------------------------
Server listening on 5201 (test #1)
-----------------------------------------------------------
Accepted connection from 192.168.1.4, port 47604
[ 5] local 192.168.1.3 port 5201 connected to 192.168.1.4 port 47612
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 36.3 MBytes 305 Mbits/sec
[ 5] 1.00-2.00 sec 35.6 MBytes 299 Mbits/sec
[ 5] 2.00-3.00 sec 36.5 MBytes 306 Mbits/sec
[ 5] 3.00-4.00 sec 36.5 MBytes 306 Mbits/sec
[ 5] 4.00-5.00 sec 35.7 MBytes 300 Mbits/sec
[ 5] 5.00-6.00 sec 35.4 MBytes 297 Mbits/sec
[ 5] 6.00-7.00 sec 37.1 MBytes 311 Mbits/sec
[ 5] 7.00-8.00 sec 35.6 MBytes 298 Mbits/sec
[ 5] 8.00-9.00 sec 36.4 MBytes 305 Mbits/sec
[ 5] 9.00-10.00 sec 36.3 MBytes 304 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 361 MBytes 303 Mbits/sec receiver

After:
# iperf3 -s
-----------------------------------------------------------
Server listening on 5201 (test #1)
-----------------------------------------------------------
Accepted connection from 192.168.1.4, port 47710
[ 5] local 192.168.1.3 port 5201 connected to 192.168.1.4 port 47720
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 111 MBytes 932 Mbits/sec
[ 5] 1.00-2.00 sec 111 MBytes 934 Mbits/sec
[ 5] 2.00-3.00 sec 111 MBytes 934 Mbits/sec
[ 5] 3.00-4.00 sec 111 MBytes 934 Mbits/sec
[ 5] 4.00-5.00 sec 111 MBytes 934 Mbits/sec
[ 5] 5.00-6.00 sec 111 MBytes 935 Mbits/sec
[ 5] 6.00-7.00 sec 111 MBytes 934 Mbits/sec
[ 5] 7.00-8.00 sec 111 MBytes 935 Mbits/sec
[ 5] 8.00-9.00 sec 111 MBytes 934 Mbits/sec
[ 5] 9.00-10.00 sec 111 MBytes 934 Mbits/sec
[ 5] 10.00-10.00 sec 167 KBytes 933 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 1.09 GBytes 934 Mbits/sec receiver

Reviewed-by: Hal Feng <hal.feng@xxxxxxxxxxxxxxxx>
Signed-off-by: Samin Guo <samin.guo@xxxxxxxxxxxxxxxx>
---
arch/riscv/boot/dts/starfive/jh7110.dtsi | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index a608433200e8..76884cf373bf 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -318,8 +318,8 @@

stmmac_axi_setup: stmmac-axi-config {
snps,lpi_en;
- snps,wr_osr_lmt = <4>;
- snps,rd_osr_lmt = <4>;
+ snps,wr_osr_lmt = <0xf>;
+ snps,rd_osr_lmt = <0xf>;
snps,blen = <256 128 64 32 0 0 0>;
};

@@ -839,7 +839,7 @@
rx-fifo-depth = <2048>;
tx-fifo-depth = <2048>;
snps,multicast-filter-bins = <64>;
- snps,perfect-filter-entries = <8>;
+ snps,perfect-filter-entries = <256>;
snps,fixed-burst;
snps,no-pbl-x8;
snps,force_thresh_dma_mode;
@@ -870,7 +870,7 @@
rx-fifo-depth = <2048>;
tx-fifo-depth = <2048>;
snps,multicast-filter-bins = <64>;
- snps,perfect-filter-entries = <8>;
+ snps,perfect-filter-entries = <256>;
snps,fixed-burst;
snps,no-pbl-x8;
snps,force_thresh_dma_mode;
--
2.17.1