PCI: Delay after FLR of Intel DC P3700 NVMe

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Add a device-specific reset for Intel DC P3700 NVMe device which exhibits a
timeout failure in drivers waiting for the ready status to update after
NVMe enable if the driver interacts with the device too soon after FLR.  As
this has been observed in device assignment scenarios, resolve this with a
device-specific reset quirk to add an additional, heuristically determined,
delay after the FLR completes.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1592654
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Alex Williamson 2018-08-09 14:04:31 -06:00 • committed by Bjorn Helgaas

parent ffb0863426

commit 51ba09452d

1 changed files with 22 additions and 0 deletions

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drivers/pci/quirks.c

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