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[mdio] migrate mdiobus out of etherswitch and into a top-level device of its own.

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The mdio driver interface is generally useful for devices that require
MDIO without the full MII bus interface. This lifts the driver/interface
out of etherswitch(4), and adds a mdio(4) man page.

Submitted by:	Landon Fuller <landon@landonf.org>
Differential Revision:	https://reviews.freebsd.org/D4606
This commit is contained in:
Adrian Chadd 2015-12-26 02:31:39 +00:00
parent 9eb533d3b4
commit 71e8eac4fd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=292738
21 changed files with 87 additions and 19 deletions
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1
share/man/man4/Makefile
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@ -266,6 +266,7 @@ MAN= aac.4 \
malo.4 \
mcd.4 \
md.4 \
mdio.4 \
me.4 \
mem.4 \
meteor.4 \

53
share/man/man4/mdio.4 Normal file
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@ -0,0 +1,53 @@
.\" Written by Landon Fuller for the FreeBSD Project.
.\" Based on the miibus(4) manual page written by Tom Rhodes.
.\" Please see the /usr/src/COPYRIGHT file for copyright information.
.\"
.\" $FreeBSD$
.\"
.Dd December 17, 2015
.Dt MDIO 4
.Os
.Sh NAME
.Nm mdio
.Nd IEEE 802.3 Management Data Input/Output interface
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following line in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device mdio"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides an interconnection between the Media Access Control (MAC)
sublayer and Physical Layer (PHY) entities' control and status registers,
as defined by the IEEE 802.3 Standard.
.Pp
The
.Nm
layer allows device drivers to share common support code for various
external PHY devices.
.Pp
.Tn MDIO
is one of two signal interfaces that comprise the
Media Independent Interface (MII) defined by the IEEE 802.3
Standard. The
.Xr miibus 4
driver provides support for devices that require full
.Tn MII
support.
.Sh SEE ALSO
.Xr miibus 4
.Sh STANDARDS
More information on
.Tn MDIO
can be found in the IEEE 802.3 Standard.
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 10.0 .
.Sh AUTHORS
The driver was written by
.An Stefan Bethke Aq Mt stb@lassitu.de .

4
sys/conf/files
View File

@ -1404,8 +1404,6 @@ dev/etherswitch/ip17x/ip175c.c optional ip17x
dev/etherswitch/ip17x/ip175d.c optional ip17x
dev/etherswitch/ip17x/ip17x_phy.c optional ip17x
dev/etherswitch/ip17x/ip17x_vlans.c optional ip17x
dev/etherswitch/mdio_if.m optional miiproxy | mdio
dev/etherswitch/mdio.c optional miiproxy | mdio
dev/etherswitch/miiproxy.c optional miiproxy
dev/etherswitch/rtl8366/rtl8366rb.c optional rtl8366rb
dev/etherswitch/ukswitch/ukswitch.c optional ukswitch
@ -1908,6 +1906,8 @@ dev/mca/mca_bus.c optional mca
dev/mcd/mcd.c optional mcd isa nowerror
dev/mcd/mcd_isa.c optional mcd isa nowerror
dev/md/md.c optional md
dev/mdio/mdio_if.m optional miiproxy | mdio
dev/mdio/mdio.c optional miiproxy | mdio
dev/mem/memdev.c optional mem
dev/mem/memutil.c optional mem
dev/mfi/mfi.c optional mfi

2
sys/dev/etherswitch/arswitch/arswitch.c
View File

@ -52,7 +52,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_7240.c
View File

@ -50,7 +50,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_8216.c
View File

@ -50,7 +50,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_8226.c
View File

@ -50,7 +50,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_8316.c
View File

@ -50,7 +50,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_8327.c
View File

@ -50,7 +50,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_9340.c
View File

@ -50,7 +50,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_phy.c
View File

@ -48,7 +48,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/arswitch/arswitch_reg.c
View File

@ -49,7 +49,7 @@
#include <dev/iicbus/iicbus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

2
sys/dev/etherswitch/e6000sw/e6000sw.c
View File

@ -54,7 +54,7 @@ __FBSDID("$FreeBSD$");
#include <arm/mv/mvvar.h>
#include <dev/etherswitch/etherswitch.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/mge/if_mgevar.h>

2
sys/dev/etherswitch/ip17x/ip17x.c
View File

@ -51,7 +51,7 @@
#include <machine/bus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>
#include <dev/etherswitch/ip17x/ip17x_phy.h>

2
sys/dev/etherswitch/ukswitch/ukswitch.c
View File

@ -50,7 +50,7 @@
#include <machine/bus.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/etherswitch/etherswitch.h>

5
sys/dev/etherswitch/mdio.c → sys/dev/mdio/mdio.c
View File

@ -29,8 +29,9 @@
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include "mdio_if.h"
@ -115,3 +116,5 @@ driver_t mdio_driver = {
};
devclass_t mdio_devclass;
MODULE_VERSION(mdio, 1);

6
sys/dev/etherswitch/mdio.h → sys/dev/mdio/mdio.h
View File

@ -26,10 +26,10 @@
* $FreeBSD$
*/
#ifndef __DEV_ETHERSWITCH_MDIO_H__
#define __DEV_ETHERSWITCH_MDIO_H__
#ifndef __DEV_MDIO_MDIO_H__
#define __DEV_MDIO_MDIO_H__
extern driver_t mdio_driver;
extern devclass_t mdio_devclass;
#endif /* __DEV_ETHERSWITCH_MDIO_H__ */
#endif /* __DEV_MDIO_MDIO_H__ */

0
sys/dev/etherswitch/mdio_if.m → sys/dev/mdio/mdio_if.m
View File

2
sys/dev/mge/if_mge.c
View File

@ -74,7 +74,7 @@ __FBSDID("$FreeBSD$");
#include <dev/fdt/fdt_common.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/etherswitch/mdio.h>
#include <dev/mdio/mdio.h>
#include <dev/mge/if_mgevar.h>
#include <arm/mv/mvreg.h>

1
sys/modules/Makefile
View File

@ -220,6 +220,7 @@ SUBDIR= \
malo \
mcd \
md \
mdio \
mem \
mfi \
mii \

10
sys/modules/mdio/Makefile Normal file
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@ -0,0 +1,10 @@
# $FreeBSD$
.PATH: ${.CURDIR}/../../dev/mdio
KMOD= mdio
SRCS= mdio.c
SRCS+= mdio_if.c mdio_if.h
SRCS+= device_if.h bus_if.h
.include <bsd.kmod.mk>