linux-kernel - [PATCH] libata: add horkage for M88V29

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Date:   Fri,  4 Feb 2022 13:57:50 +0100
From:   zboszor@...hu
To:     linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Cc:     zboszor@...il.com
Subject: [PATCH] libata: add horkage for M88V29

From: Zoltán Böszörményi <zboszor@...il.com>

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@...il.com>
---
 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 67f88027680a..4a7f58fcc411 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4028,6 +4028,7 @@ 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