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PCI: Add ACS quirk for Broadcom BCM5760X NIC

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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>
This commit is contained in:
Ajit Khaparde 2024-05-10 13:42:28 -07:00 committed by Bjorn Helgaas
parent 1613e604df
commit 524e057b2d
1 changed files with 4 additions and 0 deletions
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4
drivers/pci/quirks.c
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@ -5099,6 +5099,10 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_BROADCOM, 0x1750, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0x1751, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0x1752, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0x1760, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0x1761, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0x1762, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0x1763, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs },
/* Amazon Annapurna Labs */
{ PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },