PCI: aardvark: Fix reporting CRS value

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Set CRSVIS flag in emulated root PCI bridge to indicate support for
Completion Retry Status.

Add check for CRSSVE flag from root PCI brige when issuing Configuration
Read Request via PIO to correctly returns fabricated CRS value as it is
required by PCIe spec.

Link: https://lore.kernel.org/r/20210722144041.12661-5-pali@kernel.org
Fixes: 8a3ebd8de3 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # e0d9d30b73 ("PCI: pci-bridge-emul: Fix big-endian support")

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Pali Rohár 2021-07-22 16:40:41 +02:00 • committed by Lorenzo Pieralisi

parent e902bb7c24

commit 43f5c77bcb

1 changed files with 63 additions and 4 deletions

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drivers/pci/controller/pci-aardvark.c

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