linux-kernel - [PATCH] ata: libata-core: Disable READ LOG DMA EXT for Samsung MZ7LH

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Message-Id: <20230210215151.812839-1-chutzpah@gentoo.org>
Date:   Fri, 10 Feb 2023 13:51:51 -0800
From:   Patrick McLean <chutzpah@...too.org>
To:     linux-kernel@...r.kernel.org
Cc:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        linux-ide@...r.kernel.org, Patrick McLean <chutzpah@...too.org>
Subject: [PATCH] ata: libata-core: Disable READ LOG DMA EXT for Samsung MZ7LH

Samsung MZ7LH drives are spewing messages like this in to dmesg with AMD
SATA controllers:

ata1.00: exception Emask 0x0 SAct 0x7e0000 SErr 0x0 action 0x6 frozen
ata1.00: failed command: SEND FPDMA QUEUED
ata1.00: cmd 64/01:88:00:00:00/00:00:00:00:00/a0 tag 17 ncq dma 512 out
         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask
         0x4 (timeout)

Since this was seen previously with SSD 840 EVO drives in
https://bugzilla.kernel.org/show_bug.cgi?id=203475 let's add the same
fix for these drives as the EVOs have, since they likely have very
similar firmwares.

Signed-off-by: Patrick McLean <chutzpah@...too.org>
---
 drivers/ata/libata-core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 2ea572628b1c..c4c89d24f84c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4045,6 +4045,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "Samsung SSD 870*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM |
 						ATA_HORKAGE_NO_NCQ_ON_ATI },
+	{ "SAMSUNG*MZ7LH*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
+						ATA_HORKAGE_ZERO_AFTER_TRIM |
+						ATA_HORKAGE_NO_NCQ_ON_ATI, },
 	{ "FCCT*M500*",			NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM },
 
-- 
2.39.1