From: Ceriel Jacobs <linux-ide@crashplan•pro>
To: Francois Romieu <romieu@fr•zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek•com>,
netdev@vger•kernel.org
Subject: Re: r8168 is needed to enter P-state: Package State 6 (pc6) on Haswell hardware
Date: Mon, 06 Oct 2014 00:22:29 +0200 [thread overview]
Message-ID: <5431C4A5.8050001@crashplan.pro> (raw)
In-Reply-To: <20141005165920.GA21926@electric-eye.fr.zoreil.com>
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@crashplan•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.
>
next prev parent reply other threads:[~2014-10-05 22:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-30 23:09 r8168 is needed to enter P-state: Package State 6 (pc6) on Haswell hardware Ceriel Jacobs
2014-10-05 16:59 ` Francois Romieu
2014-10-05 22:22 ` Ceriel Jacobs [this message]
2014-10-06 3:06 ` r8168 is needed to enter P-state: Package State 6 (pc6)onHaswell hardware Hayes Wang
2014-10-06 22:13 ` Francois Romieu
2014-10-07 2:50 ` r8168 is needed to enter P-state: Package State 6(pc6)onHaswellhardware Hayes Wang
2014-10-07 20:17 ` Francois Romieu
2014-10-08 2:35 ` r8168 is needed to enter P-state: Package State6(pc6)onHaswellhardware Hayes Wang
2014-10-08 11:40 ` Ceriel Jacobs
2014-10-07 10:40 ` r8168 is needed to enter P-state: Package State 6 (pc6)onHaswell hardware Ceriel Jacobs
2014-10-07 20:16 ` Francois Romieu
2014-10-08 20:29 ` r8168 is needed to enter P-state: Package State 6 (pc6)onHaswell hardware: does the patch below against current kernel make a difference? Ceriel Jacobs
2014-10-08 22:17 ` Francois Romieu
2014-10-08 22:46 ` Ceriel Jacobs
2014-10-08 23:26 ` Francois Romieu
2014-10-09 12:02 ` Ceriel Jacobs
2014-10-09 22:14 ` Francois Romieu
2014-10-10 11:09 ` r8168 is needed to enter P-state: Package State 6 (pc6)onHaswell hardware: does the patch below against current kernel make a difference? Yes, it does Ceriel Jacobs
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