> -----Original Message----- > From: Florian Fainelli [mailto:f.faine...@gmail.com] > Sent: Monday, February 20, 2017 1:42 PM > To: YUAN Linyu; David S . Miller; Andrew Lunn > Cc: netdev@vger.kernel.org; cug...@163.com > Subject: Re: create drivers/net/mdio and move mdio drivers into it > > 3. another idea is bind mdio device to network device > > You would have to be more specific about what you want to do here. If > the MDIO device is e.g: a switch, what we recommend doing is provide a > fixed-link node that describes how the Ethernet MAC and the switch's > CPU/management ports are connected (that way the MAC always "sees" the > link as UP, running with a specific speed and duplex). > Yes, some system will configured the phy to fixed speed/duplex at boot time, no phy driver used in kernel at all. If network device know mdio device it used, we can do phy dump through this mdio device driver.
> If this is a different kind of MDIO device, e.g: an USB/PCIe/SATA PHY, > there is no network device associated with those. > mdio under drivers/net/, it will not cover these devices.
