Document MAC address selection and setting for atse(4).

Submitted by:	brooks
MFC after:	3 days
Sponsored by:	DARPA/AFRL
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Bjoern A. Zeeb 2014-08-21 12:50:11 +00:00
parent a5d099afa9
commit ac4dd4a91c

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.\"-
.\" Copyright (c) 2013 SRI International
.\" Copyright (c) 2013-2014 SRI International
.\" All rights reserved.
.\"
.\" This software was developed by SRI International and the University of
@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd October 18, 2013
.Dd May 21, 2014
.Dt ALTERA_ATSE 4
.Os
.Sh NAME
@ -66,6 +66,25 @@ The current version of the
.Nm
driver supports the Ethernet MegaCore as described in version 11.1 of
Altera's documentation when the device is configured with internal FIFOs.
.Sh MAC SELECTION
The default MAC address for each
.Nm
interface is derived from a value stored in
.Xr cfi 4
flash.
The value is managed by the
.Xr atsectl 8
utility.
.Pp
Only a single MAC address may be stored in flash.
If the address begins with the Altera prefix 00:07:ed and ends in 00 then
up to 16 addresses will be derived from it by adding the unit number of
the interface to the stored address.
For other prefixes, the address will be assigned to atse0 and random
addresses will be used for other interfaces.
If the stored address is invalid, for example all zero's, multicast, or the
default address shipped on all DE4 boards (00:07:ed:ff:ed:15) then a random
address is generated when the device is attached.
.Sh SEE ALSO
.Xr miibus 4 ,
.Xr netintro 4 ,