linux-kernel - AHCI should try to claim all AHCI controllers

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Date:	Tue, 31 Oct 2006 23:06:32 +0800
From:	"Conke Hu" <conke.hu@....com>
To:	<jgarzik@...ox.com>, <torvalds@...l.org>,
	<linux-kernel@...r.kernel.org>, <linux-ide@...r.kernel.org>
Subject: AHCI should try to claim all AHCI controllers

Hi all,
	According to PCI 3.0 spec, ACHI's PCI class code is 0x010601,
and I suggest the ahci driver had better try to claim all ahci
controllers, pls see the following patch:

diff -Nur linux-2.6.17/drivers/scsi/ahci.c
linux-2.6.17-ahci/drivers/scsi/ahci.c
--- linux-2.6.17/drivers/scsi/ahci.c	2006-06-18 09:49:35.000000000
+0800
+++ linux-2.6.17-ahci/drivers/scsi/ahci.c	2006-10-31
22:50:54.000000000 +0800
@@ -296,6 +296,11 @@
 	  board_ahci }, /* ATI SB600 non-raid */
 	{ PCI_VENDOR_ID_ATI, 0x4381, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	  board_ahci }, /* ATI SB600 raid */
+	/* Claim all AHCI controllers not listed above. 
+	 * According to PCI 3.0, AHCI's class code is 0x010601 
+        */
+	{ PCI_AND_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x010601,
0xffffff, 
+	board_ahci },
 	{ }	/* terminate list */
 };


Best regards,
Conke @ AMD, Inc.




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