From: Tony Camuso <tcamuso@redhat.com>
Subject: [RHEL5.1 PATCH] Blacklist for HP DL585G2 and HP dc5700
Date: Tue, 31 Jul 2007 07:25:09 -0400
Bugzilla: 248186
Message-Id: <20070731112509.16339.83435.sendpatchset@dhcp83-188.boston.redhat.com>
Changelog: [x86] Blacklist for HP DL585G2 and HP dc5700



Resolves BZ 248186

This patch Blacklists the HP Proliant DL585 G2 and dc5700 systems.

These systems must be blacklisted to prevent them from using 
MMCONFIG for PCI configuration space probes in order to circumvent
the bug in the 8132 PCI bridge that acks only the first MMCONFIG cycle
and no others. 

The blacklisted systems will use legacy PCI Configuration probes through 
the CF8/CFC Port IO addresses. 

This patch has been built against 2.6.18-36.el5 and booted on a DL585G1
to test for regressions, and on a DL585G2 to test for the correct 
functionality. 

Please ACK or comment. 

--- linux-2.6.18.i386/arch/i386/pci/mmconfig.c.orig	2007-07-19 13:29:38.000000000 -0400
+++ linux-2.6.18.i386/arch/i386/pci/mmconfig.c	2007-07-19 13:37:39.000000000 -0400
@@ -214,6 +214,21 @@ static struct dmi_system_id __devinitdat
 			DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9400 Workstation"),
 		},
 	},
+	{
+		.callback = disable_mmconf,
+		.ident = "ProLiant DL585 G2",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"),
+		},
+	},
+	{
+		.callback = disable_mmconf,
+		.ident = "HP Compaq dc5700 Microtower",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, 
+				"HP Compaq dc5700 Microtower"),
+		},
+	},
 
 	{}
 };