linux-kernel - [-next v1 0/1] Fix StarFive JH7110 gmac TCP RX speed issue

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Date:   Thu, 10 Aug 2023 15:46:45 +0800
From:   Samin Guo <samin.guo@...rfivetech.com>
To:     <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>,
        <devicetree@...r.kernel.org>
CC:     Emil Renner Berthing <kernel@...il.dk>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        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>,
        Samin Guo <samin.guo@...rfivetech.com>,
        Hal Feng <hal.feng@...rfivetech.com>
Subject: [-next v1 0/1] Fix StarFive JH7110 gmac TCP RX speed issue

This patch fixes the StarFive JH7110 gmac TCP RX slow issue. And it has been
tested on VisionFive 2.

Here is the result of the test (iperf3):

  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


For more information and support, you can visit RVspace wiki[1].

[1]: https://wiki.rvspace.org/

Samin Guo (1):
  riscv: starfive: jh7110: Fix GMAC configuration

 arch/riscv/boot/dts/starfive/jh7110.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--
2.17.1