netdev - RE: [PATCH net-next v3 5/5] r8169: support RTL8411

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Message-ID: <E2A7860223AF4B52AFE7946163746F02@realtek.com.tw>
Date:	Mon, 16 Apr 2012 14:58:44 +0800
From:	hayeswang <hayeswang@...ltek.com>
To:	'Francois Romieu' <romieu@...zoreil.com>
CC:	<netdev@...r.kernel.org>
Subject: RE: [PATCH net-next v3 5/5] r8169: support RTL8411

Francois Romieu [mailto:romieu@...zoreil.com] 
> Sent: Tuesday, April 10, 2012 2:02 AM
> To: Hayeswang
> Cc: netdev@...r.kernel.org
> Subject: Re: [PATCH net-next v3 5/5] r8169: support RTL8411
[...]
> 
> Rx/Tx is ok, WoL + shutdown is ok but runtime power management is not.
> 
[...]
> 
> - set a 8402 and a 8411 in the same test box
> - ip addr add ... 
> - ip link set dev ... up 
> - start ping from remote host
> - echo auto > /sys/bus/pci/devices/.../power/control
> - unplug cable
>   - ping stops flowing
>   - cat /sys/bus/pci/devices/.../power/runtime_status
>     -> "active"
> - plug cable
>   -> RPM status does not change, no link, no packet, no fun.
> 

The 8111C and the later chips have to set Config2 (0x53) bit 5 to enable PME
status for WOL.
Besides, the config1 (0x52) bit 0 is the read-only. Maybe you could skip setting
it.
 
Best Regards,
Hayes

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