diff options
| -rw-r--r-- | drivers/pci/quirks.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 81777c27e14c..322d577503bd 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3615,14 +3615,16 @@ static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags) return acs_flags & ~flags ? 0 : 1; } -static int pci_quirk_solarflare_acs(struct pci_dev *dev, u16 acs_flags) +static int pci_quirk_mf_endpoint_acs(struct pci_dev *dev, u16 acs_flags) { /* * SV, TB, and UF are not relevant to multifunction endpoints. * - * Solarflare indicates that peer-to-peer between functions is not - * possible, therefore RR, CR, and DT are not implemented. Mask - * these out as if they were clear in the ACS capabilities register. + * Multifunction devices are only required to implement RR, CR, and DT + * in their ACS capability if they support peer-to-peer transactions. + * Devices matching this quirk have been verified by the vendor to not + * perform peer-to-peer with other functions, allowing us to mask out + * these bits as if they were unimplemented in the ACS capability. */ acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT); @@ -3641,8 +3643,28 @@ static const struct pci_dev_acs_enabled { { PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs }, { PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs }, { PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs }, - { PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_solarflare_acs }, - { PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_solarflare_acs }, + { PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10C6, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10DB, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10DD, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10E1, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10F1, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10F7, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10F8, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10F9, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10FA, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10FB, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x10FC, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x1507, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x1514, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x151C, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x1529, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x152A, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x154D, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x154F, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs }, { 0 } }; |