linux-kernel - Re: [PATCH v2] PCI: Add quirk to disable ASPM L1 for Sandisk SN740 NVMe SSDs

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Message-ID: <31bbe640-b1ea-454b-9c9c-ed013022f07c@oss.qualcomm.com>
Date: Mon, 24 Nov 2025 12:42:42 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>,
        bhelgaas@...gle.com
Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <mani@...nel.org>
Subject: Re: [PATCH v2] PCI: Add quirk to disable ASPM L1 for Sandisk SN740
 NVMe SSDs

On 11/20/25 5:12 PM, Manivannan Sadhasivam wrote:
> The Sandisk SN740 NVMe SSDs cause below AER errors on the upstream Root
> Port of PCIe controller in Microsoft Surface Laptop 7, when ASPM L1 is
> enabled:
> 
>   pcieport 0006:00:00.0: AER: Correctable error message received from 0006:01:00.0
>   nvme 0006:01:00.0: PCIe Bus Error: severity=Correctable, type=Physical Layer, (Receiver ID)
>   nvme 0006:01:00.0:   device [15b7:5015] error status/mask=00000001/0000e000
>   nvme 0006:01:00.0:    [ 0] RxErr
> 
> Hence, add a quirk to disable L1 by removing the ASPM_L1 CAP for this SSD.
> 
> Reported-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: Manivannan Sadhasivam <mani@...nel.org>
> ---

This revision also works for me, thank you

Tested-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com> # X1E80100 Romulus

Konrad