xref: /freebsd/share/man/man4/rgephy.4 (revision 43a5ec4eb41567cc92586503212743d89686d78f)
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26.\" $FreeBSD$
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28.Dd January 16, 2011
29.Dt RGEPHY 4
30.Os
31.Sh NAME
32.Nm rgephy
33.Nd RealTek RTL8168/8169/8110/8211 series 10/100/1000 Gigabit Ethernet PHY driver
34.Sh SYNOPSIS
35To compile all available PHY drivers into the kernel,
36place the following line in your kernel configuration file:
37.Bd -ragged -offset indent
38.Cd "device miibus"
39.Ed
40.Pp
41Alternatively, to selectively compile this driver into the kernel,
42place the following lines in your kernel configuration file instead:
43.Bd -ragged -offset indent
44.Cd "device mii"
45.Cd "device rgephy"
46.Ed
47.Sh DESCRIPTION
48The
49.Nm
50driver supports the RealTek RTL8168, RTL8169, RTL8110 and RTL8211 series
51integrated 10/100/1000 Gigabit Ethernet PHYs.
52.Pp
53In order to get a list of media types and options supported by a specific
54instance of the
55.Nm
56driver, run
57.Li ifconfig -m
58on the instance of its parent MAC driver.
59.Pp
60Additionally,
61the
62.Nm
63driver supports the following special media option:
64.Bl -tag -width ".Cm flag0"
65.It Cm flag0
66When manually setting media type and options via
67.Xr ifconfig 8 ,
68the
69.Nm
70driver by default also triggers an autonegotiation advertising the selected
71media.
72This is done in order to work around hardware issues in certain scenarios.
73It is believed that this behavior does not cause harm in general but in fact
74can have an adverse effect in edge cases.
75In order to manually set the media type and options without also triggering
76an autonegotiation,
77the
78.Nm
79driver allows to turn this behavior off via the
80.Cm flag0
81media option.
82.El
83.Pp
84Note that this special media option will not show up in the output of
85.Xr ifconfig 8 ,
86even when set.
87.Sh EXAMPLES
88Manually set 100BASE-TX full-duplex without also triggering an
89autonegotiation:
90.Pp
91.Dl "ifconfig re0 media 100baseTX mediaopt full-duplex,flag0"
92.Sh SEE ALSO
93.Xr intro 4 ,
94.Xr miibus 4 ,
95.Xr ifconfig 8
96