Commit 0325837c authored Mar 27, 2020 by Raymond Pang Committed by Bjorn Helgaas Mar 28, 2020

PCI: Add ACS quirk for Zhaoxin multi-function devices

Some Zhaoxin endpoints are implemented as multi-function devices without an
ACS capability, but they actually don't support peer-to-peer transactions.
Add ACS quirks to declare DMA isolation.

Link: https://lore.kernel.org/r/20200327091148.5190-3-RaymondPang-oc@zhaoxin.com

Signed-off-by: Raymond Pang <RaymondPang-oc@zhaoxin.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

parent 33755906

drivers/pci/quirks.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -4701,6 +4701,10 @@ static const struct pci_dev_acs_enabled {
		{ PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs },
		/* Amazon Annapurna Labs */
		{ PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },
		/* Zhaoxin multi-function devices */
		{ PCI_VENDOR_ID_ZHAOXIN, 0x3038, pci_quirk_mf_endpoint_acs },
		{ PCI_VENDOR_ID_ZHAOXIN, 0x3104, pci_quirk_mf_endpoint_acs },
		{ PCI_VENDOR_ID_ZHAOXIN, 0x9083, pci_quirk_mf_endpoint_acs },
		{ 0 }
		};