linux-kernel - [PATCH] libata: Apply NOLPM quirk for SAMSUNG PM830 CXM13D1Q.

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Date:   Sun, 13 May 2018 20:11:15 +0200
From:   fcami@...oraproject.org
To:     tj@...nel.org, hdegoede@...hat.com, linux-kernel@...r.kernel.org,
        linux-ide@...r.kernel.org
Cc:     François Cami <fcami@...oraproject.org>
Subject: [PATCH] libata: Apply NOLPM quirk for SAMSUNG PM830 CXM13D1Q.

From: François Cami <fcami@...oraproject.org>

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@...oraproject.org>
Acked-by: Hans de Goede <hdegoede@...hat.com>
---
 drivers/ata/libata-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 68596bd4cf06..1ca365f13040 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4549,8 +4549,9 @@ 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, },
-- 
2.17.0