RE: [PATCH net-next 1/2] net: stmmac: enable 2.5Gbps link speed
From: Voon, Weifeng <hidden>
Date: 2021-04-02 07:45:16
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lkml, netdev
quoted
+ /* 2.5G mode only support 2500baseT full duplex only */ + if (priv->plat->has_gmac4 && priv->plat->speed_2500_en) { + phylink_set(mac_supported, 2500baseT_Full); + phylink_set(mask, 10baseT_Half); + phylink_set(mask, 10baseT_Full); + phylink_set(mask, 100baseT_Half); + phylink_set(mask, 100baseT_Full); + phylink_set(mask, 1000baseT_Half); + phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseKX_Full);Why? This seems at odds to the comment above?
What about 2500baseX_Full ?
The comments explain that the PCS<->PHY link is in 2500BASE-X and why 10/100/1000 link speed is mutually exclusive with 2500. But the connected external PHY are twisted pair cable which only supports 2500baseT_full. Weifeng _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel