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

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Date:	Sun, 5 Oct 2014 18:59:20 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	Ceriel Jacobs <linux-ide@...shplan.pro>
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

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.

-- 
Ueimor
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