linux-kernel - RE: [PATCH net] r8169: disable L23

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Date:	Wed, 9 Jul 2014 06:36:05 +0000
From:	Hayes Wang <hayeswang@...ltek.com>
To:	Francois Romieu <romieu@...zoreil.com>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	nic_swsd <nic_swsd@...ltek.com>
Subject: RE: [PATCH net] r8169: disable L23

 Francois Romieu [mailto:romieu@...zoreil.com] 
> Sent: Wednesday, July 09, 2014 4:17 AM
> To: Hayes Wang
> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org; nic_swsd
> Subject: Re: [PATCH net] r8169: disable L23
[...]
> Can you elaborate what L23 is or should the commit message be reworded
> as "Disable a (yet undocumented) power saving feature that randomly
> causes RTL8411, RTL8111G, RTL8402, RTL8105, and RTL8106 devices to be
> lost on some systems." ?

The L2/L3 are the link status which are defined in the specification of the PCI
Express Base Specification for the link state power manager. I don't know them
much, so I don't sure if I could explain them clearly. 

Best Regards,
Hayes
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