netdev - RE: [PATCH 1/2] e100: power down PHY if WOL is not enabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CEE05A0D7856E14880AD5560634EBEA82AA78752@365EXCH-MBX-P5.nbttech.com>
Date:	Wed, 14 Dec 2011 22:16:54 +0000
From:	Jiang Wang <Jiang.Wang@...erbed.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
CC:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	Greg Rose <gregory.v.rose@...el.com>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>,
	Alex Duyck <alexander.h.duyck@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Prasanna Panchamukhi <Prasanna.Panchamukhi@...erbed.com>,
	Chaitanya Lala <Chaitanya.Lala@...erbed.com>,
	"Francis St. Amant" <Francis.St.Amant@...erbed.com>,
	"miles.ito@...el.com" <miles.ito@...el.com>
Subject: RE: [PATCH 1/2] e100: power down PHY if WOL is not enabled

I see. I will add one more check for that. Thanks.

-------------------------------------
Jiang Wang
Member of Technical Staff
Riverbed Technology
Tel: (408) 522-5109
Email: Jiang.Wang@...erbed.com
www.riverbed.com


-----Original Message-----
From: Ben Hutchings [mailto:bhutchings@...arflare.com] 
Sent: Wednesday, December 14, 2011 2:08 PM
To: Jiang Wang
Cc: Jeff Kirsher; Jesse Brandeburg; Bruce Allan; Carolyn Wyborny; Don Skidmore; Greg Rose; Peter P Waskiewicz Jr; Alex Duyck; John Ronciak; e1000-devel@...ts.sourceforge.net; netdev@...r.kernel.org; linux-kernel@...r.kernel.org; Prasanna Panchamukhi; Chaitanya Lala; Francis St. Amant; miles.ito@...el.com
Subject: RE: [PATCH 1/2] e100: power down PHY if WOL is not enabled

On Wed, 2011-12-14 at 21:59 +0000, Jiang Wang wrote:
> Hi Ben,
> 
> Do you mean the WOL is enabled but PHY is powered off somehow? That 
> scenario should never happen. If WOL is enabled, there is no code to 
> power off PHY.
[...]

Initial conditions: interface up, WOL off, PHY on.

1. Bring interface down. PHY is turned off.
2. Turn WOL on.  PHY is still off, but needs to be on.

Ben.

--
Ben Hutchings, Staff Engineer, Solarflare Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.