From: davem@davemloft.net (David Miller)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH net-next v5 0/2] stmmac: dwmac-meson8b: configurable RGMII TX delay
Date: Tue, 24 Jan 2017 13:36:13 -0500 (EST) [thread overview]
Message-ID: <20170124.133613.1355073769005063451.davem@davemloft.net> (raw)
In-Reply-To: <20170122220246.13602-1-martin.blumenstingl@googlemail.com>
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Sun, 22 Jan 2017 23:02:44 +0100
> Currently the dwmac-meson8b stmmac glue driver uses a hardcoded 1/4
> cycle (= 2ns) TX clock delay. This seems to work fine for many boards
> (for example Odroid-C2 or Amlogic's reference boards) but there are
> some others where TX traffic is simply broken.
> There are probably multiple reasons why it's working on some boards
> while it's broken on others:
> - some of Amlogic's reference boards are using a Micrel PHY
> - hardware circuit design
> - maybe more...
>
> iperf3 results on my Mecool BB2 board (Meson GXM, RTL8211F PHY) with
> TX clock delay disabled on the MAC (as it's enabled in the PHY driver).
> TX throughput was virtually zero before:
...
> I get similar TX throughput on my Meson GXBB "MXQ Pro+" board when I
> disable the PHY's TX-delay and configure a 4ms TX-delay on the MAC.
> So changes to at least the RTL8211F PHY driver are needed to get it
> working properly in all situations.
Series applied, thanks.
prev parent reply other threads:[~2017-01-24 18:36 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-24 14:34 [net-next PATCH v1 " Martin Blumenstingl
2016-11-24 14:34 ` [net-next PATCH v1 1/2] net: dt-bindings: add RGMII TX delay configuration to meson8b-dwmac Martin Blumenstingl
2016-11-24 15:48 ` Andrew Lunn
2016-11-24 16:52 ` Martin Blumenstingl
2016-11-24 14:34 ` [net-next PATCH v1 2/2] net: stmmac: dwmac-meson8b: make the RGMII TX delay configurable Martin Blumenstingl
2016-11-24 15:56 ` [net-next PATCH v1 0/2] stmmac: dwmac-meson8b: configurable RGMII TX delay Jerome Brunet
2016-11-24 17:05 ` Martin Blumenstingl
2016-11-24 18:55 ` Florian Fainelli
2016-11-25 0:41 ` Martin Blumenstingl
2016-11-25 11:13 ` Sebastian Frias
2016-11-25 12:01 ` Måns Rullgård
2016-11-25 17:44 ` Florian Fainelli
2016-11-28 10:34 ` Sebastian Frias
2016-11-25 9:53 ` Jerome Brunet
2016-11-24 16:08 ` Jerome Brunet
2016-11-25 8:59 ` Giuseppe CAVALLARO
2016-11-25 13:01 ` [PATCH v2 0/7] " Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 1/7] net: dt-bindings: add RGMII TX delay configuration to meson8b-dwmac Martin Blumenstingl
2016-11-30 21:44 ` Rob Herring
2016-11-30 22:33 ` Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 2/7] net: stmmac: dwmac-meson8b: make the RGMII TX delay configurable Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 3/7] ARM64: dts: meson-gx: move the MDIO node to meson-gx Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 4/7] ARM64: dts: meson-gxbb-odroidc2: add reset for the ethernet PHY Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 5/7] ARM64: dts: meson-gxbb-p20x: " Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 6/7] ARM64: dts: meson-gxbb-vega-s95: " Martin Blumenstingl
2016-11-25 13:01 ` [PATCH v2 7/7] ARM64: dts: amlogic: add the ethernet TX delay configuration Martin Blumenstingl
2016-11-25 13:41 ` [PATCH v2 0/7] stmmac: dwmac-meson8b: configurable RGMII TX delay David Laight
2016-11-28 1:33 ` David Miller
2016-12-02 23:52 ` Martin Blumenstingl
2016-11-28 13:25 ` Neil Armstrong
2016-12-02 23:32 ` [PATCH net-next v3 0/2] " Martin Blumenstingl
2016-12-02 23:32 ` [PATCH net-next v3 1/2] net: dt-bindings: add RGMII TX delay configuration to meson8b-dwmac Martin Blumenstingl
2016-12-09 21:31 ` Rob Herring
2016-12-02 23:32 ` [PATCH net-next v3 2/2] net: stmmac: dwmac-meson8b: make the RGMII TX delay configurable Martin Blumenstingl
2016-12-17 18:21 ` [PATCH net-next v4 0/2] stmmac: dwmac-meson8b: configurable RGMII TX delay Martin Blumenstingl
2016-12-17 18:21 ` [PATCH net-next v4 1/2] net: dt-bindings: add RGMII TX delay configuration to meson8b-dwmac Martin Blumenstingl
2016-12-17 18:21 ` [PATCH net-next v4 2/2] net: stmmac: dwmac-meson8b: make the RGMII TX delay configurable Martin Blumenstingl
2016-12-18 15:49 ` David Miller
2016-12-18 16:13 ` Martin Blumenstingl
2017-01-09 17:37 ` Martin Blumenstingl
2017-01-20 13:47 ` Martin Blumenstingl
2017-01-22 22:02 ` [PATCH net-next v5 0/2] stmmac: dwmac-meson8b: configurable RGMII TX delay Martin Blumenstingl
2017-01-22 22:02 ` [PATCH net-next v5 1/2] net: dt-bindings: add RGMII TX delay configuration to meson8b-dwmac Martin Blumenstingl
2017-01-22 22:02 ` [PATCH net-next v5 2/2] net: stmmac: dwmac-meson8b: make the RGMII TX delay configurable Martin Blumenstingl
2017-01-24 18:36 ` David Miller [this message]
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