PCI: Apply Cavium ACS quirk to ThunderX2 and ThunderX3 (f338bb9f) · Commits · 戴 / test

Enhance the ACS quirk for Cavium Processors. Add the root port vendor IDs for ThunderX2 and ThunderX3 series of processors. [bhelgaas: add Fixes: and stable tag] Fixes: ("PCI: Apply Cavium ThunderX ACS quirk to more Root Ports") Link: https://lore.kernel.org/r/20191111024243.GA11408@dc5-eodlnx05.marvell.com Signed-off-by:

George Cherian <george.cherian@marvell.com> Signed-off-by:

Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:

Robert Richter <rrichter@marvell.com> Cc: stable@vger.kernel.org # v4.12+

drivers/pci/quirks.c

+13 −7

Original line number	Diff line number	Diff line
		@@ -4347,15 +4347,21 @@ static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags)

		static bool pci_quirk_cavium_acs_match(struct pci_dev *dev)
		{
		if (!pci_is_pcie(dev) \|\| pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
		return false;

		switch (dev->device) {
		/*
		* Effectively selects all downstream ports for whole ThunderX1
		* family by 0xf800 mask (which represents 8 SoCs), while the lower
		* bits of device ID are used to indicate which subdevice is used
		* within the SoC.
		* (which represents 8 SoCs).
		*/
		return (pci_is_pcie(dev) &&
		(pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) &&
		((dev->device & 0xf800) == 0xa000));
		case 0xa000 ... 0xa7ff: /* ThunderX1 */
		case 0xaf84: /* ThunderX2 */
		case 0xb884: /* ThunderX3 */
		return true;
		default:
		return false;
		}
		}

		static int pci_quirk_cavium_acs(struct pci_dev *dev, u16 acs_flags)

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