netdev - WOL with flex filters, reflecting it in /sys

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Date:	Thu, 1 Oct 2009 13:55:03 -0700
From:	"Leisner, Martin" <Martin.Leisner@...ox.com>
To:	<linux-pm@...ts.linux-foundation.org>, <netdev@...r.kernel.org>
Cc:	<martyleisner@...oo.com>
Subject: WOL with flex filters, reflecting it in /sys

I'm looking to extend the work of Mitch Williams to support flexible
filters.
(http://www.mail-archive.com/netdev@vger.kernel.org/msg60332.html}

Looking at the problem, would it be a good idea to reflect WOL
characteristics in the /sys filesystem (instead of requiring ethtool to
set them)?

Seems straightforward and easy enough.

I know the VIA Rhinefet and Intel e1000 support filters -- and some
freescale
seems to have some front end that support filters...and we've also
implemented filters in software...

What I'm thinking of is a hierarchy in /sys/classes/net/<device>/wol/

wol/
   /flex-filters
      /0
           data -- hex data to match
           mask -- string of 1 and 0 -- if 1, the data is valid in the
bit 
                   position
      ...
      /n
	   data
         mask
  /wake_up_packet
  /traditional --r/w (0/1)
     /magic_packet
     /arp
     /unicast
     /multicast
     /broadcast
     /phy

marty
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