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RGEPHY(4)		    Kernel Interfaces Manual		     RGEPHY(4)

NAME
       rgephy  --  RealTek  RTL8168/8169/8110/8211  series 10/100/1000 Gigabit
       Ethernet	PHY driver

SYNOPSIS
       To compile all available	PHY drivers into the kernel, place the follow-
       ing line	in your	kernel configuration file:

	     device miibus

       Alternatively, to selectively compile  this  driver  into  the  kernel,
       place the following lines in your kernel	configuration file instead:

	     device mii
	     device rgephy

DESCRIPTION
       The  rgephy  driver  supports the RealTek RTL8168, RTL8169, RTL8110 and
       RTL8211 series integrated 10/100/1000 Gigabit Ethernet PHYs.

       In order	to get a list of media types and options supported by  a  spe-
       cific instance of the rgephy driver, run	ifconfig -m on the instance of
       its parent MAC driver.

       Additionally,  the  rgephy  driver supports the following special media
       option:

       flag0  When manually setting media type and  options  via  ifconfig(8),
	      the  rgephy  driver  by default also triggers an autonegotiation
	      advertising the selected media.  This is done in order  to  work
	      around  hardware	issues	in  certain scenarios.	It is believed
	      that this	behavior does not cause	harm in	general	 but  in  fact
	      can  have	an adverse effect in edge cases.  In order to manually
	      set the media type and options without also  triggering  an  au-
	      tonegotiation,  the  rgephy  driver allows to turn this behavior
	      off via the flag0	media option.

       Note that this special media option will	not show up in the  output  of
       ifconfig(8), even when set.

EXAMPLES
       Manually	 set 100BASE-TX	full-duplex without also triggering an autone-
       gotiation:

	     ifconfig re0 media	100baseTX mediaopt full-duplex,flag0

SEE ALSO
       intro(4), miibus(4), ifconfig(8)

FreeBSD	13.2		       January 16, 2011			     RGEPHY(4)

NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO

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