[OpenWrt-Devel] [PATCH] ramips: mt7621: add support for disabling flow control

[Cristian Morales Vega]

Sorry, for some reason I didn't receive your reply (but patchwork told
me about it), so I am replying here.

Maybe it's something that should be done with ethtool, but I had no
idea those phys were exposed through anything other than swconfig.
What would be the "DEVNAME" in "ethtool -a DEVNAME" if I want to, for
example, check the settings of the switch port #3?


On 5 April 2016 at 15:22, Cristian Morales Vega <cristian at samknows.com> wrote:
> Signed-off-by: Cristian Morales Vega <cristian at samknows.com>
> ---
>  ...diatek-add-swconfig-driver-for-gsw_mt762x.patch | 54 +++++++++++++++++++++-
>  1 file changed, 53 insertions(+), 1 deletion(-)
>
> diff --git a/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch b/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch
> index bbad8cc..d056551 100644
> --- a/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch
> +++ b/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch
> @@ -28,7 +28,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
>   obj-$(CONFIG_NET_MEDIATEK_SOC)                        += mtk-eth-soc.o
>  --- /dev/null
>  +++ b/drivers/net/ethernet/mediatek/mt7530.c
> -@@ -0,0 +1,804 @@
> +@@ -0,0 +1,856 @@
>  +/*
>  + * This program is free software; you can redistribute it and/or
>  + * modify it under the terms of the GNU General Public License
> @@ -709,6 +709,50 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
>  +      return 0;
>  +}
>  +
> ++static int mt7621_sw_get_port_fc(struct switch_dev *dev,
> ++                               const struct switch_attr *attr,
> ++                               struct switch_val *val)
> ++{
> ++      u32 reg;
> ++      struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
> ++
> ++      if (val->port_vlan >= MT7530_NUM_PORTS)
> ++              return -EINVAL;
> ++
> ++      reg = mdiobus_read(priv->bus, val->port_vlan, 4);
> ++      reg &= BIT(10);
> ++
> ++      val->value.i = reg ? 1 : 0;
> ++
> ++      return 0;
> ++}
> ++
> ++static int mt7621_sw_set_port_fc(struct switch_dev *dev,
> ++                               const struct switch_attr *attr,
> ++                               struct switch_val *val)
> ++{
> ++      u32 reg;
> ++      struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
> ++
> ++      if (val->port_vlan >= MT7530_NUM_PORTS)
> ++              return -EINVAL;
> ++
> ++      reg = mdiobus_read(priv->bus, val->port_vlan, 4);
> ++      if(val->value.i) {
> ++              reg |= BIT(10);
> ++      } else {
> ++              reg &= ~BIT(10);
> ++      }
> ++      mdiobus_write(priv->bus, val->port_vlan, 4, reg);
> ++
> ++      /* Restart auto-negotiation */
> ++      reg = mdiobus_read(priv->bus, val->port_vlan, 0);
> ++      reg |= BIT(9);
> ++      mdiobus_write(priv->bus, val->port_vlan, 0, reg);
> ++
> ++      return 0;
> ++}
> ++
>  +static const struct switch_attr mt7621_port[] = {
>  +      {
>  +              .type = SWITCH_TYPE_STRING,
> @@ -717,6 +761,14 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
>  +              .get = mt7621_sw_get_port_mib,
>  +              .set = NULL,
>  +      },
> ++      {
> ++              .type = SWITCH_TYPE_INT,
> ++              .name = "flow_ctl",
> ++              .description = "Flow Control",
> ++              .get = mt7621_sw_get_port_fc,
> ++              .set = mt7621_sw_set_port_fc,
> ++              .max = 1,
> ++      },
>  +};
>  +
>  +static const struct switch_attr mt7530_port[] = {
> --
> 2.6.3
>



-- 
Cristian Morales Vega

Email cristian at samknows.com
Office +44 (0) 20 3111 4330
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