PCI: Add ACS quirk for Broadcom BCM5760X NIC

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[ Upstream commit 524e057b2d ]

The Broadcom BCM5760X NIC may be a multi-function device.

While it does not advertise an ACS capability, peer-to-peer transactions
are not possible between the individual functions. So it is ok to treat
them as fully isolated.

Add an ACS quirk for this device so the functions can be in independent
IOMMU groups and attached individually to userspace applications using
VFIO.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20240510204228.73435-1-ajit.khaparde@broadcom.com
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ajit Khaparde 2024-07-28 12:06:37 -04:00 • committed by Greg Kroah-Hartman

parent db7d50a5d7

commit 25f760c9ec

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drivers/pci/quirks.c

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