Re: AHCI should try to claim all AHCI controllers

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Conke Hu wrote:
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 */
 };

Since things have settled in this area, yes, this would probably be a good thing to add.

For the benefit of others, some background: we should not be -removing- any PCI IDs due to this, because quite often the PCI class code will be RAID or something else, yet still be drive-able with this ahci driver.

	Jeff



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