From owner-freebsd-hackers@freebsd.org  Fri Mar 27 18:48:02 2020
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Subject: Re: Does FreeBSD has a generic PHY library as in Linux?
To: Rajesh Kumar <rajfbsd@gmail.com>, freebsd-drivers@freebsd.org,
 FreeBSD Hackers <freebsd-hackers@freebsd.org>
References: <CAAO+ANOghLzHBMh94akX0x_iTBGSxK=2sqj45GH_-26i5u=zMA@mail.gmail.com>
From: =?UTF-8?Q?Stefan_E=c3=9fer?= <se@freebsd.org>
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Date: Fri, 27 Mar 2020 19:47:49 +0100
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Am 26.03.20 um 19:36 schrieb Rajesh Kumar:
> Hi,
> 
> I am porting a network driver from Linux to FreeBSD.  The driver in Linux
> uses the PHY library (a generic wrapper) to access/config the PHY
> registers. Do we have anything equivalent in FreeBSD?
> 
> PHY library routines in Linux:
> 
> get_phy_device
> phy_device_register
> phy_attach_direct
> phy_start_aneg
> etc.,
> 
> FreeBSD being a stable OS for networking and Storage, I assume it should
> have something equivalent to this.  Can anyone point to it? or any
> documentation related to this?

See

	https://wiki.freebsd.org/MIIBUS

for initial information about the miibus driver that covers most
PHYs supported by FreeBSD Ethernet devices.

The miibus(4) man-page contains a list of devices that use this
interface and which might be useful as examples for its use:

	https://www.freebsd.org/cgi/man.cgi?miibus(4)

Regards, STefan