Re: [PATCH net-next 02/11] ethtool: Add loopback netlink UAPI definitions

[Andrew Lunn]

> So, the same name + depth ?
> 
>  +---|-PHY+
>  |   |    |
>  | SerDes |
>  |   |    |
>  |  PCS   | component = PHY, name = "pcs", depth = 0
>  |   |    |
>  |  MAC   |
>  |   |    |
>  | packet |
>  | buffer |
>  |   |    |
>  |  MAC   |
>  |   |    |
>  |  PCS   | component = PHY, name = "pcs", depth = 1
>  |   |    |
>  |  PMA   |
>  |   |    |
>  |  PMD   |
>  +---|----+
>      |
>      v 10GBaseT
> 
> For that we have what we need with phy_link_topology, as each PHY has
> its index, we should be good to go in that regard hopefully :)

So depth would be local to a component? We could have two PHY
components, each with a different index, and depth = 0?

I _think_ Jakub's depth was more at a global level? But then it would
need to be passed down as we do the enumeration.

     Andrew