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Subject[PATCH 3.4 027/176] ahci: disable MSI on SAMSUNG 0xa800 SSD
Date
From: Tejun Heo <tj@kernel.org>

3.4.107-rc1 review patch. If anyone has any objections, please let me know.

------------------


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: Zefan Li <lizefan@huawei.com>
---
drivers/ata/ahci.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 4aa63bf..6fc61eb 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -493,6 +493,7 @@ 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 },
--
1.9.1


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