linux-kernel - Re: [PATCH V10 0/4] Enable PCIe ASPM and LTR on select hardware

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Date:   Thu,  2 Feb 2023 16:07:07 +0100
From:   Lorenzo Pieralisi <lpieralisi@...nel.org>
To:     rafael@...nel.org, robh@...nel.org, bhelgaas@...gle.com,
        michael.a.bottini@...el.com, hch@...radead.org,
        nirmal.patel@...ux.intel.com, kw@...ux.com, me@...ityamohan.in,
        "David E. Box" <david.e.box@...ux.intel.com>,
        jonathan.derrick@...ux.dev,
        Lorenzo Pieralisi <lpieralisi@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH V10 0/4] Enable PCIe ASPM and LTR on select hardware

On Thu, 19 Jan 2023 19:15:18 -0800, David E. Box wrote:
> This series adds a work around for enabling PCIe ASPM and for setting PCIe
> LTR values on VMD reserved root ports on select platforms. While
> configuration of these capabilities is usually done by BIOS, on these
> platforms these capabilities will not be configured because the ports are
> not visible to BIOS. This was part of an initial design that expected the
> driver to completely handle the ports, including power management. However
> on Linux those ports are still managed by the PCIe core, which has the
> expectation that they adhere to device standards including BIOS
> configuration, leading to this problem.
> 
> [...]

Applied to pci/controller/vmd, thanks!

[1/4] PCI/ASPM: Add pci_enable_link_state()
      https://git.kernel.org/pci/pci/c/de82f60f9c86
[2/4] PCI: vmd: Use PCI_VDEVICE in device list
      https://git.kernel.org/pci/pci/c/cca0dfecdba3
[3/4] PCI: vmd: Create feature grouping for client products
      https://git.kernel.org/pci/pci/c/14d2079af648
[4/4] PCI: vmd: Add quirk to configure PCIe ASPM and LTR
      https://git.kernel.org/pci/pci/c/f492edb40b54

Thanks,
Lorenzo