linux-kernel - [PATCH] pci: quirk: Apply APM ACS quirk to XGene devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 17 Jul 2017 17:45:52 -0700
From:   Feng Kan <fkan@....com>
To:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        bhelgaas@...gle.com, alex.williamson@...hat.com
Cc:     Feng Kan <fkan@....com>
Subject: [PATCH] pci: quirk: Apply APM ACS quirk to XGene devices

The APM X-Gene PCIe root port does not support ACS at this point.
Since the root does not allow peer to peer transactions, mask out
ACS capability flag bits.

Signed-off-by: Feng Kan <fkan@....com>
---
 drivers/pci/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 085fb78..951064d 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4368,6 +4368,8 @@ static int pci_quirk_mf_endpoint_acs(struct pci_dev *dev, u16 acs_flags)
 	{ 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */
 	/* Cavium ThunderX */
 	{ PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs },
+	/* APM XGene */
+	{ PCI_VENDOR_ID_AMCC, 0xE004, pci_quirk_mf_endpoint_acs },
 	{ 0 }
 };
 
-- 
1.8.3.1