linux-kernel - RE: rtsx_pci not restoring ASPM state after suspend/resume

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Message-ID: <83fa1c44e8d342618eb5fbc491ec4779@realtek.com>
Date:   Fri, 24 Jul 2020 07:16:26 +0000
From:   吳昊澄 Ricky <ricky_wu@...ltek.com>
To:     Bjorn Helgaas <helgaas@...nel.org>,
        Rui Feng <rui_feng@...lsil.com.cn>
CC:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        James Ettle <james@...le.org.uk>, Len Brown <lenb@...nel.org>,
        Puranjay Mohan <puranjay12@...il.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Jacopo De Simoi" <wilderkde@...il.com>
Subject: RE: rtsx_pci not restoring ASPM state after suspend/resume

Hi James, Bjorn,

The Card reader(10ec:5287) is a combo chip with Ethernet(10ec:8168), we think it is not cause by setting our device config space in idle time.
We dis/enable the ASPM(setting config space) at busy/idle time, it can make our R/W performances well not a work around function
PCI Host and Device setting self config space and do handshaking, we think it does not affect the system


Ricky 



> -----Original Message-----
> From: Bjorn Helgaas [mailto:helgaas@...nel.org]
> Sent: Friday, July 24, 2020 1:13 AM
> To: 吳昊澄 Ricky; Rui Feng
> Cc: Arnd Bergmann; Greg Kroah-Hartman; James Ettle; Len Brown; Puranjay
> Mohan; linux-pci@...r.kernel.org; linux-kernel@...r.kernel.org; Jacopo De
> Simoi
> Subject: Re: rtsx_pci not restoring ASPM state after suspend/resume
> 
> [+cc Jacopo]
> 
> On Thu, Jul 23, 2020 at 11:56:22AM -0500, Bjorn Helgaas wrote:
> > James reported this issue with rtsx_pci; can you guys please take a
> > look at it?  https://bugzilla.kernel.org/show_bug.cgi?id=208117
> >
> > There's a lot of good info in the bugzilla already.
> 
> Likely duplicate: https://bugzilla.kernel.org/show_bug.cgi?id=198951
> 
> Jacopo, could you please attach a complete dmesg log and "sudo lspci
> -vvxxxx" output to your bugzilla?
> 
> ------Please consider the environment before printing this e-mail.