This is a note to let you know that I've just added the patch titled
ahci: disable MSI on SAMSUNG 0xa800 SSD
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ahci-disable-msi-on-samsung-0xa800-ssd.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2b21ef0aae65f22f5ba86b13c4588f6f0c2dbefb Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Thu, 4 Dec 2014 13:13:28 -0500
Subject: ahci: disable MSI on SAMSUNG 0xa800 SSD
From: Tejun Heo <tj@xxxxxxxxxx>
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@xxxxxxxxxx>
Reported-by: Dominik Mierzejewski <dominik@xxxxxxxxxxxxxx>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=89171
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/ata/ahci.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -496,6 +496,7 @@ static const struct pci_device_id ahci_p
* 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 },
Patches currently in stable-queue which might be from tj@xxxxxxxxxx are
queue-3.14/ahci-add-deviceids-for-sunrise-point-lp-sata-controller.patch
queue-3.14/ahci-disable-msi-on-samsung-0xa800-ssd.patch
queue-3.14/sata_fsl-fix-error-handling-of-irq_of_parse_and_map.patch
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