Re: [PATCH net-next v6 5/6] net: dsa: microchip: enable MTU normalization for KSZ8795 and KSZ9477 compatible switches

[Arun.Ramadoss]

On Thu, 2022-11-24 at 11:14 +0100, Oleksij Rempel wrote:
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> 
> KSZ8795 and KSZ9477 compatible series of switches use global max
> frame
> size configuration register. So, enable MTU normalization for this
> reason.

Acked-by: Arun Ramadoss <arun.ramadoss@xxxxxxxxxxxxx>

> 
> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> ---
>  drivers/net/dsa/microchip/ksz8795.c | 2 ++
>  drivers/net/dsa/microchip/ksz9477.c | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/net/dsa/microchip/ksz8795.c
> b/drivers/net/dsa/microchip/ksz8795.c
> index d01bfd609130..060e41b9b6ef 100644
> --- a/drivers/net/dsa/microchip/ksz8795.c
> +++ b/drivers/net/dsa/microchip/ksz8795.c
> @@ -1357,6 +1357,8 @@ int ksz8_setup(struct dsa_switch *ds)
>         struct ksz_device *dev = ds->priv;
>         int i;
> 
> +       ds->mtu_enforcement_ingress = true;
> +
>         ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_FLOW_CTRL, true);
> 
>         /* Enable automatic fast aging when link changed detected. */
> diff --git a/drivers/net/dsa/microchip/ksz9477.c
> b/drivers/net/dsa/microchip/ksz9477.c
> index f6e7968ab105..47b54ecf2c6f 100644
> --- a/drivers/net/dsa/microchip/ksz9477.c
> +++ b/drivers/net/dsa/microchip/ksz9477.c
> @@ -1134,6 +1134,8 @@ int ksz9477_setup(struct dsa_switch *ds)
>         struct ksz_device *dev = ds->priv;
>         int ret = 0;
> 
> +       ds->mtu_enforcement_ingress = true;
> +
>         /* Required for port partitioning. */
>         ksz9477_cfg32(dev, REG_SW_QM_CTRL__4, UNICAST_VLAN_BOUNDARY,
>                       true);
> --
> 2.30.2
>