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Subject[PATCH 3.16 192/305] libata: Apply NOLPM quirk for SAMSUNG PM830 CXM13D1Q.
3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

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

From: François Cami <fcami@fedoraproject.org>

commit 76936e9a6df17b89481bd2655c8684291afbe656 upstream.

Without this patch the drive errors out regularly:

[ 1.090154] ata1.00: ATA-8: SAMSUNG SSD PM830 mSATA 256GB,
CXM13D1Q, max UDMA/133
(...)
[ 345.154996] ata1.00: exception Emask 0x40 SAct 0x0 SErr 0xc0800 action 0x6
[ 345.155006] ata1.00: irq_stat 0x40000001
[ 345.155013] ata1: SError: { HostInt CommWake 10B8B }
[ 345.155018] ata1.00: failed command: SET FEATURES
[ 345.155032] ata1.00: cmd ef/05:e1:00:00:00/00:00:00:00:00/40 tag 7
res 51/04:e1:00:00:00/00:00:00:00:00/40 Emask 0x41 (internal error)
[ 345.155038] ata1.00: status: { DRDY ERR }
[ 345.155042] ata1.00: error: { ABRT }
[ 345.155051] ata1: hard resetting link
[ 345.465661] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 345.466955] ata1.00: configured for UDMA/133
[ 345.467085] ata1: EH complete

Signed-off-by: François Cami <fcami@fedoraproject.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/ata/libata-core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4246,8 +4246,9 @@ static const struct ata_blacklist_entry
{ "Crucial_CT960M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM |
ATA_HORKAGE_NOLPM, },

- /* This specific Samsung model/firmware-rev does not handle LPM well */
+ /* These specific Samsung models/firmware-revs do not handle LPM well */
{ "SAMSUNG MZMPC128HBFU-000MV", "CXM14M1Q", ATA_HORKAGE_NOLPM, },
+ { "SAMSUNG SSD PM830 mSATA *", "CXM13D1Q", ATA_HORKAGE_NOLPM, },

/* devices that don't properly handle queued TRIM commands */
{ "Micron_M500IT_*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM, },
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