From: Christoph Hellwig <hch@infradead.org>
To: grwhyte@linux.microsoft.com
Cc: linux-pci@vger.kernel.org, shyamsaini@linux.microsoft.com,
code@tyhicks.com, Okaya@kernel.org, bhelgaas@google.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/2] PCI: Reduce FLR delay to 10ms for MSFT devices
Date: Tue, 10 Jun 2025 20:27:12 -0700 [thread overview]
Message-ID: <aEj3kAy5bOXPA_1O@infradead.org> (raw)
In-Reply-To: <20250611000552.1989795-1-grwhyte@linux.microsoft.com>
On Wed, Jun 11, 2025 at 12:05:50AM +0000, grwhyte@linux.microsoft.com wrote:
> From: Graham Whyte <grwhyte@linux.microsoft.com>
>
> Add a new flr_delay member of the pci_dev struct to allow customization of
> the delay after FLR for devices that do not support immediate readiness
> or readiness time reporting. The main scenario this addresses is VF
> removal and rescan during runtime repairs and driver updates, which,
> if fixed to 100ms, introduces significant delays across multiple VFs.
> These delays are unnecessary for devices that complete the FLR well
> within this timeframe.
Please work with the PCIe SIG to have a standard capability for this
instead of piling up hacks like this quirk.
next prev parent reply other threads:[~2025-06-11 3:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-11 0:05 [PATCH v3 0/2] PCI: Reduce FLR delay to 10ms for MSFT devices grwhyte
2025-06-11 0:05 ` [PATCH v3 1/2] PCI: Add flr_delay parameter to pci_dev struct grwhyte
2025-06-13 10:23 ` Ilpo Järvinen
2025-08-06 22:06 ` Bjorn Helgaas
2025-06-11 0:05 ` [PATCH v3 2/2] PCI: Reduce FLR delay to 10ms for MSFT devices grwhyte
2025-06-13 10:31 ` Ilpo Järvinen
2025-06-11 3:27 ` Christoph Hellwig [this message]
2025-06-11 7:23 ` [PATCH v3 0/2] " Niklas Cassel
2025-06-11 20:08 ` Graham Whyte
2025-06-12 6:31 ` Christoph Hellwig
2025-06-12 16:41 ` Graham Whyte
2025-06-13 15:33 ` Bjorn Helgaas
2025-06-16 19:02 ` Graham Whyte
2025-06-16 21:05 ` Bjorn Helgaas
2025-06-18 16:42 ` Graham Whyte
2025-07-02 17:03 ` Graham Whyte
2025-06-13 11:42 ` Manivannan Sadhasivam
2025-06-13 13:45 ` Lukas Wunner
2025-06-13 13:56 ` Manivannan Sadhasivam
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