ahci: disable MSI on SAMSUNG 0xa800 SSD
authorTejun Heo <tj@kernel.org>
Thu, 4 Dec 2014 18:13:28 +0000 (13:13 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 16 Dec 2014 17:09:42 +0000 (09:09 -0800)
commit 2b21ef0aae65f22f5ba86b13c4588f6f0c2dbefb upstream.

Just like 0x1600 which got blacklisted by 66a7cbc303f4 ("ahci: disable
MSI instead of NCQ on Samsung pci-e SSDs on macbooks"), 0xa800 chokes
on NCQ commands if MSI is enabled.  Disable MSI.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dominik Mierzejewski <dominik@greysector.net>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=89171
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/ata/ahci.c

index e197526..9064a2f 100644 (file)
@@ -494,6 +494,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
         */
        { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
+       { PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
 
        /* Enmotus */
        { PCI_DEVICE(0x1c44, 0x8000), board_ahci },