Commit 76936e9a authored May 13, 2018 by François Cami Committed by Tejun Heo May 14, 2018

libata: Apply NOLPM quirk for SAMSUNG PM830 CXM13D1Q.



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>

parent 322579dc

drivers/ata/libata-core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -4553,8 +4553,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
		ATA_HORKAGE_ZERO_AFTER_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, },

		/* Sandisk devices which are known to not handle LPM well */
		{ "SanDisk SD7UB3Q*G1001", NULL, ATA_HORKAGE_NOLPM, },