Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        =?UTF-8?q?Zolt=C3=A1n=20B=C3=B6sz=C3=B6rm=C3=A9nyi?= 
        <zboszor@gmail.com>,
        Damien Le Moal <damien.lemoal@opensource.wdc.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 75/80] ata: libata-core: Disable TRIM on M88V29
Date:   Mon, 21 Feb 2022 09:49:55 +0100
Message-Id: <20220221084918.039587269@linuxfoundation.org>
In-Reply-To: <20220221084915.554151737@linuxfoundation.org>
References: <20220221084915.554151737@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Zoltán Böszörményi <zboszor@gmail.com>

[ Upstream commit c8ea23d5fa59f28302d4e3370c75d9c308e64410 ]

This device is a CF card, or possibly an SSD in CF form factor.
It supports NCQ and high speed DMA.

While it also advertises TRIM support, I/O errors are reported
when the discard mount option fstrim is used. TRIM also fails
when disabling NCQ and not just as an NCQ command.

TRIM must be disabled for this device.

Signed-off-by: Zoltán Böszörményi <zboszor@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/libata-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 92fb1f5b240e8..dca1590f295d0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4595,6 +4595,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 
 	/* devices that don't properly handle TRIM commands */
 	{ "SuperSSpeed S238*",		NULL,	ATA_HORKAGE_NOTRIM, },
+	{ "M88V29*",			NULL,	ATA_HORKAGE_NOTRIM, },
 
 	/*
 	 * As defined, the DRAT (Deterministic Read After Trim) and RZAT
-- 
2.34.1