PCI: Add ACS quirk for Broadcom BCM5750x NICs
mainline inclusion from master commit afd306a6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5V2IE CVE: NA ------------------------------------------- The Broadcom BCM5750x NICs may be multi-function devices. They do not advertise ACS capability. Peer-to-peer transactions are not possible between the individual functions, so it is safe to treat them as fully isolated. Add an ACS quirk for these devices so the functions can be in independent IOMMU groups and attached individually to userspace applications using VFIO. Link: https://lore.kernel.org/r/1654796507-28610-1-git-send-email-michael.chan@broadcom.comSigned-off-by: NPavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: NMichael Chan <michael.chan@broadcom.com> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Signed-off-by: NXibo.Wang <wangxb12@chinatelecom.cn>
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