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Message-ID: <CAJM55Z_AKXa-cKy8kS4-8XPcqgFb4ts2ywhcWwL7Nf3wMBCWJA@mail.gmail.com>
Date: Thu, 10 Aug 2023 13:28:23 +0200
From: Emil Renner Berthing <emil.renner.berthing@...onical.com>
To: Samin Guo <samin.guo@...rfivetech.com>
Cc: linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
devicetree@...r.kernel.org, Emil Renner Berthing <kernel@...il.dk>,
Conor Dooley <conor@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Hal Feng <hal.feng@...rfivetech.com>
Subject: Re: [-next v1 1/1] riscv: dts: starfive: jh7110: Fix GMAC configuration
On Thu, 10 Aug 2023 at 09:46, Samin Guo <samin.guo@...rfivetech.com> wrote:
>
> 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@...rfivetech.com>
> Signed-off-by: Samin Guo <samin.guo@...rfivetech.com>
> ---
> 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>;
nit: this is a limit, so presumably counting things and not an address
or bitmask, so I'd prefer decimal numbers here, eg <15>.
It works fine either way, so
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> 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
>
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