ahci: disable NCQ on Samsung pci-e SSDs on macbooks
authorLevente Kurusa <levex@linux.com>
Tue, 18 Feb 2014 15:22:17 +0000 (10:22 -0500)
committerTejun Heo <tj@kernel.org>
Tue, 18 Feb 2014 15:22:17 +0000 (10:22 -0500)
commit67809f85d31eac600f6b28defa5386c9d2a13b1d
tree049137477323ea44a421dcb5e46e40ad8f926ace
parent8ad116e649b21a42e3cccfb3c1b8d5ea52ba19e5
ahci: disable NCQ on Samsung pci-e SSDs on macbooks

Samsung's pci-e SSDs with device ID 0x1600 which are found on some
macbooks time out on NCQ commands.  Blacklist NCQ on the device so
that the affected machines can at least boot.

Original-patch-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Cc: stable@vger.kernel.org
drivers/ata/ahci.c