From: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>, bhelgaas@google.com
Cc: linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, koba.ko@canonical.com,
Oliver O'Halloran <oohall@gmail.com>,
mika.westerberg@linux.intel.com, baolu.lu@linux.intel.com
Subject: Re: [PATCH v4 2/2] PCI/DPC: Disable DPC service when link is in L2/L3 ready, L2 and L3 state
Date: Sun, 17 Apr 2022 19:41:00 -0700 [thread overview]
Message-ID: <0d4e8764-b1ae-ae59-06ff-d5b705891da4@linux.intel.com> (raw)
In-Reply-To: <20220408153159.106741-2-kai.heng.feng@canonical.com>
On 4/8/22 8:31 AM, Kai-Heng Feng wrote:
> On Intel Alder Lake platforms, Thunderbolt entering D3cold can cause
> some errors reported by AER:
> [ 30.100211] pcieport 0000:00:1d.0: AER: Uncorrected (Non-Fatal) error received: 0000:00:1d.0
> [ 30.100251] pcieport 0000:00:1d.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, (Requester ID)
> [ 30.100256] pcieport 0000:00:1d.0: device [8086:7ab0] error status/mask=00100000/00004000
> [ 30.100262] pcieport 0000:00:1d.0: [20] UnsupReq (First)
> [ 30.100267] pcieport 0000:00:1d.0: AER: TLP Header: 34000000 08000052 00000000 00000000
> [ 30.100372] thunderbolt 0000:0a:00.0: AER: can't recover (no error_detected callback)
> [ 30.100401] xhci_hcd 0000:3e:00.0: AER: can't recover (no error_detected callback)
> [ 30.100427] pcieport 0000:00:1d.0: AER: device recovery failed
>
> Since AER is disabled in previous patch for a Link in L2/L3 Ready, L2
> and L3, also disable DPC here as DPC depends on AER to work.
>
> Bugzilla:https://bugzilla.kernel.org/show_bug.cgi?id=215453
> Reviewed-by: Mika Westerberg<mika.westerberg@linux.intel.com>
> Signed-off-by: Kai-Heng Feng<kai.heng.feng@canonical.com>
Reviewed-by: Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer
next prev parent reply other threads:[~2022-04-18 2:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 15:31 [PATCH v4 1/2] PCI/AER: Disable AER service when link is in L2/L3 ready, L2 and L3 state Kai-Heng Feng
2022-04-08 15:31 ` [PATCH v4 2/2] PCI/DPC: Disable DPC " Kai-Heng Feng
2022-04-18 2:41 ` Sathyanarayanan Kuppuswamy [this message]
2022-06-21 2:27 ` Kai-Heng Feng
2022-06-23 17:28 ` Bjorn Helgaas
2022-04-22 22:24 ` [PATCH v4 1/2] PCI/AER: Disable AER " Bjorn Helgaas
2022-04-22 22:26 ` Bjorn Helgaas
2022-07-01 4:06 ` Kai-Heng Feng
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