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PCI: Add Wellsburg (X99) to Intel PCH root port ACS quirk

Message ID 6AF484C0160C61439DE06F17668F3BCB5348FE8C@ORSMSX114.amr.corp.intel.com
State Not Applicable
Headers show

Commit Message

donald.d.dugger@intel.com Jan. 22, 2015, 7:44 p.m. UTC 
Ack-by: Don Dugger <donald.d.dugger@intel.com>

--
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
Ph: 303/443-3786

-----Original Message-----
From: Alex Williamson [mailto:alex.williamson@redhat.com] 

Sent: Thursday, January 22, 2015 11:16 AM
To: linux-pci@vger.kernel.org
Cc: bhelgaas@google.com; Dugger, Donald D; linux-kernel@vger.kernel.org
Subject: [PATCH] PCI: Add Wellsburg (X99) to Intel PCH root port ACS quirk

Intel has confirmed that the Wellsburg chipset, while not reporting ACS, does provide the proper isolation through the RCBA/BSPR registers, so the same quirk works for this set of device IDs.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

Cc: Don Dugger <donald.d.dugger@intel.com>
---

 drivers/pci/quirks.c |    3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ed6f89b..2cdb789 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3630,6 +3630,9 @@  static const u16 pci_quirk_intel_pch_acs_ids[] = {
 	0x9c98, 0x9c99, 0x9c9a, 0x9c9b,
 	/* Patsburg (X79) PCH */
 	0x1d10, 0x1d12, 0x1d14, 0x1d16, 0x1d18, 0x1d1a, 0x1d1c, 0x1d1e,
+	/* Wellsburg (X99) PCH */
+	0x8d10, 0x8d11, 0x8d12, 0x8d13, 0x8d14, 0x8d15, 0x8d16, 0x8d17,
+	0x8d18, 0x8d19, 0x8d1a, 0x8d1b, 0x8d1c, 0x8d1d, 0x8d1e,
 };
 
 static bool pci_quirk_intel_pch_acs_match(struct pci_dev *dev)