linux-kernel - Re: [PATCH V2 3/7] PCI: make pci_flr_wait() generic and rename to pci_dev

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Message-ID: <0248af7b-0459-2b77-e439-bfcdfebcd7f6@codeaurora.org>
Date:   Mon, 4 Dec 2017 08:17:20 -0500
From:   Sinan Kaya <okaya@...eaurora.org>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Linux PCI <linux-pci@...r.kernel.org>, timur@...eaurora.org,
        linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 3/7] PCI: make pci_flr_wait() generic and rename to
 pci_dev_wait()

On 11/29/2017 12:38 PM, Christoph Hellwig wrote:
> On Mon, Nov 27, 2017 at 01:20:24AM -0500, Sinan Kaya wrote:
>> Rev 3.1 Sec 2.3.1 Request Handling Rules:
>> Valid reset conditions after which a device is permitted to return CRS
>> are:
>> * Cold, Warm, and Hot Resets,
>> * FLR
>> * A reset initiated in response to a D3hot to D0 uninitialized
>>
>> Try to reuse FLR implementation towards other reset types.
> 
> Should we keep a helper for the FLR wait?  If not I guess the reference
> for AF_FLR should be the PCI spec, not the PCIE spec.
> 

Bjorn,

what is your opinion?

Sinan

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.