From 184add2ca23ce5edcac0ab9c3b9be13f91e7b567 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 26 Apr 2018 22:32:21 +0200
Subject: [PATCH] libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs
Git-commit: 184add2ca23ce5edcac0ab9c3b9be13f91e7b567
Patch-mainline: v4.17-rc5
References: bsc#1051510
Richard Jones has reported that using med_power_with_dipm on a T450s
with a Sandisk SD7UB3Q256G1001 SSD (firmware version X2180501) is
causing the machine to hang.
Switching the LPM to max_performance fixes this, so it seems that
this Sandisk SSD does not handle LPM well.
Note in the past there have been bug-reports about the following
Sandisk models not working with min_power, so we may need to extend
the quirk list in the future: name - firmware
Sandisk SD6SB2M512G1022I - X210400
Sandisk SD6PP4M-256G-1006 - A200906
Cc: stable@vger.kernel.org
Cc: Richard W.M. Jones <rjones@redhat.com>
Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/ata/libata-core.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4545,6 +4545,9 @@ static const struct ata_blacklist_entry
ATA_HORKAGE_ZERO_AFTER_TRIM |
ATA_HORKAGE_NOLPM, },
+ /* Sandisk devices which are known to not handle LPM well */
+ { "SanDisk SD7UB3Q*G1001", NULL, ATA_HORKAGE_NOLPM, },
+
/* devices that don't properly handle queued TRIM commands */
{ "Micron_M500_*", NULL, ATA_HORKAGE_NO_NCQ_TRIM |
ATA_HORKAGE_ZERO_AFTER_TRIM, },