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From: Alexander Motin <mav@FreeBSD.org>
Date: Thu, 31 Jan 2013 20:48:56 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r246157 - stable/8/sys/dev/ahci
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Author: mav
Date: Thu Jan 31 20:48:56 2013
New Revision: 246157
URL: http://svnweb.freebsd.org/changeset/base/246157

Log:
  MFC r245875:
  Disable MSI interrupts for SB600 chipset.  According to the report they are
  not functional.
  
  PR:		kern/174880, kern/174985, kern/175002

Modified:
  stable/8/sys/dev/ahci/ahci.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/dev/   (props changed)
  stable/8/sys/dev/ahci/   (props changed)

Modified: stable/8/sys/dev/ahci/ahci.c
==============================================================================
--- stable/8/sys/dev/ahci/ahci.c	Thu Jan 31 20:47:35 2013	(r246156)
+++ stable/8/sys/dev/ahci/ahci.c	Thu Jan 31 20:48:56 2013	(r246157)
@@ -120,8 +120,9 @@ static struct {
 #define AHCI_Q_NOAA	512
 #define AHCI_Q_NOCOUNT	1024
 #define AHCI_Q_ALTSIG	2048
+#define AHCI_Q_NOMSI	4096
 } ahci_ids[] = {
-	{0x43801002, 0x00, "ATI IXP600",	0},
+	{0x43801002, 0x00, "ATI IXP600",	AHCI_Q_NOMSI},
 	{0x43901002, 0x00, "ATI IXP700",	0},
 	{0x43911002, 0x00, "ATI IXP700",	0},
 	{0x43921002, 0x00, "ATI IXP700",	0},
@@ -641,6 +642,8 @@ ahci_setup_interrupt(device_t dev)
 	int i, msi = 1;
 
 	/* Process hints. */
+	if (ctlr->quirks & AHCI_Q_NOMSI)
+		msi = 0;
 	resource_int_value(device_get_name(dev),
 	    device_get_unit(dev), "msi", &msi);
 	if (msi < 0)