linux-kernel - Re: [PATCH v2 00/10] PCI: endpoint: Make host reboot handling more robust

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Date: Mon, 8 Apr 2024 11:49:45 +0200
From: Niklas Cassel <cassel@...nel.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Krzysztof Wilczyński <kw@...ux.com>
Cc: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Jingoo Han <jingoohan1@...il.com>, linux-pci@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	mhi@...ts.linux.dev, linux-tegra@...r.kernel.org,
	Damien Le Moal <dlemoal@...nel.org>
Subject: Re: [PATCH v2 00/10] PCI: endpoint: Make host reboot handling more
 robust

On Wed, Apr 03, 2024 at 07:18:25PM +0530, Manivannan Sadhasivam wrote:
> On Tue, Apr 02, 2024 at 11:41:00AM +0200, Niklas Cassel wrote:
> > On Mon, Apr 01, 2024 at 09:20:26PM +0530, Manivannan Sadhasivam wrote:
> > > Hello,
> > > 
> > > This is the follow up series of [1], to improve the handling of host reboot in
> > > the endpoint subsystem. This involves refining the PERST# and Link Down event
> > > handling in both the controller and function drivers.
> > > 
> > > Testing
> > > =======
> > > 
> > > This series is tested on Qcom SM8450 based development board with both MHI_EPF
> > > and EPF_TEST function drivers.
> > > 
> > > Dependency
> > > ==========
> > > 
> > > This series depends on [1] and [2].
> > > 
> > > - Mani
> > 
> > Hello Mani,
> > 
> > > [1] https://lore.kernel.org/linux-pci/20240314-pci-dbi-rework-v10-0-14a45c5a938e@linaro.org/
> > > [2] https://lore.kernel.org/linux-pci/20240320113157.322695-1-cassel@kernel.org/
> > 
> > AFAICT both these series [1] (DBI rework v12, not v10) and [2] are fully
> > reviewed and seem to be ready to go.
> > 
> > Considering that we have patches depending on [1] and [2],
> > namely the series in $subject, but also:
> > https://lore.kernel.org/linux-pci/20240330041928.1555578-1-dlemoal@kernel.org/T/#t
> > 
> > I think it would be a good idea if you could apply [1] and [2] to the
> > pci/endpoint branch.
> > 
> 
> Unfortunately, I cannot merge the patches outside 'pci/endpoint' even though
> these are related to the PCI Endpoint subsystem. But I have delegated these 2
> series to Krzysztof, so hopefully he'll apply it soon.

Hello Mani, Krzysztof,

These three series:
https://patchwork.kernel.org/project/linux-pci/list/?series=836730&state=*
https://patchwork.kernel.org/project/linux-pci/list/?series=838789&state=*

Still haven't been merged.

Considering that the PCI endpoint memory mapping series:
https://patchwork.kernel.org/project/linux-pci/list/?series=839970
conflicts with both of these series, I think that it would be nice if the
two fully reviewed series above could get picked up.

Right now, I think we still have time to get the PCI endpoint memory mapping
series fully reviewed to live in linux-next for 2 weeks before the next merge
window opens, but time is running out (because of delays for what appears to
be no apparent reason).


Kind regards,
Niklas


P.S.
It would also be nice to see:
https://patchwork.kernel.org/project/linux-pci/list/?series=838545&state=*
getting picked up.