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Date:   Thu, 30 Mar 2023 04:41:12 +0200
From:   Lukas Wunner <lukas@wunner.de>
To:     Wu Zongyong <wuzongyong@linux.alibaba.com>
Cc:     sdonthineni@nvidia.com, bhelgaas@google.com,
        linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
        wllenyj@linux.alibaba.com, wutu.xq2@linux.alibaba.com,
        gerry@linux.alibaba.com
Subject: Re: [RFC PATCH] PCI: avoid SBR for NVIDIA T4
Message-ID: <20230330024112.GA27387@wunner.de>
References: <388bc353a5f88edb502ec04c0dc53ab62a526020.1680090885.git.wuzongyong@linux.alibaba.com>
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On Wed, Mar 29, 2023 at 07:58:45PM +0800, Wu Zongyong wrote:
> Secondary bus reset will fail if NVIDIA T4 card is direct attached to a
> root port.
> So avoid to do bus reset,  pci_parent_bus_reset() works nomarlly.

If you cherry-pick commits

  8ef0217227b4 ("PCI/PM: Observe reset delay irrespective of bridge_d3")
  ac91e6980563 ("PCI: Unify delay handling for reset and resume")

from v6.3-rc1, does the issue still persist?

Thanks,

Lukas