netdev - Re: r8168 is needed to enter P-state: Package State 6 (pc6) on Haswell hardware

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Message-ID: <5431C4A5.8050001@crashplan.pro>
Date:	Mon, 06 Oct 2014 00:22:29 +0200
From:	Ceriel Jacobs <linux-ide@...shplan.pro>
To:	Francois Romieu <romieu@...zoreil.com>
CC:	Realtek linux nic maintainers <nic_swsd@...ltek.com>,
	netdev@...r.kernel.org
Subject: Re: r8168 is needed to enter P-state: Package State 6 (pc6) on Haswell
 hardware

This is the requested "XID" dmesg line is:

[    1.479298] r8169 0000:03:00.0 eth0: RTL8168g/8111g at 
0xffffc90004752000, d0:50:99:0b:09:90, XID 0c000800 IRQ 27

Francois Romieu schreef op 05-10-14 om 18:59:
> Ceriel Jacobs <linux-ide@...shplan.pro> :
>> With in-kernel r8169 module, only P-state package C3 (pc3) can be reached
>> when enabling ASPM.
>>
>> Only after installing r8168 driver (and enabling ASPM), a Haswell Celeron
>> G1820/G1840 processer will enter package C6 state (pc6).
>
> Vanilla kernel r8169 driver logs a message that contains an "XID" string.
> Please grep for it in your dmesg so that I can narrow the search for
> meaningful differences in Realtek's r8168 driver.
>
> Thanks.
>
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