On Thu, Jun 09, 2022 at 01:41:47PM -0400, Michael Chan wrote:
> From: Pavan Chebbi <pavan.chebbi@xxxxxxxxxxxx>
>
> 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.
>
> Signed-off-by: Pavan Chebbi <pavan.chebbi@xxxxxxxxxxxx>
> Signed-off-by: Michael Chan <michael.chan@xxxxxxxxxxxx>
Applied to pci/virtualization for v5.20, thanks!
> ---
> drivers/pci/quirks.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 41aeaa235132..2e68f50bc7ae 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -4924,6 +4924,9 @@ static const struct pci_dev_acs_enabled {
> { PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs },
> /* Broadcom multi-function device */
> { PCI_VENDOR_ID_BROADCOM, 0x16D7, pci_quirk_mf_endpoint_acs },
> + { 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, 0xD714, pci_quirk_brcm_acs },
> /* Amazon Annapurna Labs */
> { PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },
> --
> 2.18.1
>
