linux-kernel - RE: [PATCH] PCI: Add Wellsburg (X99) to Intel PCH root port ACS quirk

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Date:	Thu, 22 Jan 2015 19:44:22 +0000
From:	"Dugger, Donald D" <donald.d.dugger@...el.com>
To:	Alex Williamson <alex.williamson@...hat.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
CC:	"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] PCI: Add Wellsburg (X99) to Intel PCH root port ACS
 quirk

Ack-by: Don Dugger <donald.d.dugger@...el.com>

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

-----Original Message-----
From: Alex Williamson [mailto:alex.williamson@...hat.com] 
Sent: Thursday, January 22, 2015 11:16 AM
To: linux-pci@...r.kernel.org
Cc: bhelgaas@...gle.com; Dugger, Donald D; linux-kernel@...r.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@...hat.com>
Cc: Don Dugger <donald.d.dugger@...el.com>
---

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

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)