From: Bartosz Golaszewski <brgl@xxxxxxxx>
Date: Mon, Jun 12, 2023 at 10:23:47
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> On some platforms, the PCS can be integrated in the MAC so the driver
> will not see any PCS link activity. Add a switch that allows the platform
> drivers to let the core code know.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> ---
> drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
> include/linux/stmmac.h | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> index fa07b0d50b46..fdcf1684487c 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> @@ -5793,7 +5793,7 @@ static void stmmac_common_interrupt(struct stmmac_priv *priv)
> }
>
> /* PCS link status */
> - if (priv->hw->pcs) {
> + if (priv->hw->pcs && !priv->plat->has_integrated_pcs) {
> if (priv->xstats.pcs_link)
> netif_carrier_on(priv->dev);
> else
> diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
> index 225751a8fd8e..06090538fe2d 100644
> --- a/include/linux/stmmac.h
> +++ b/include/linux/stmmac.h
> @@ -293,5 +293,6 @@ struct plat_stmmacenet_data {
> bool sph_disable;
> bool serdes_up_after_phy_linkup;
> const struct dwmac4_addrs *dwmac4_addrs;
> + bool has_integrated_pcs;
> };
> #endif
> --
> 2.39.2
We should eventually consider changing some elements of this struct to a bit-field.
Reviewed-by: Jose Abreu <Jose.Abreu@xxxxxxxxxxxx>
Thanks,
Jose
