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From: Helge Deller <>
	James Bottomley <>,
	John David Anglin <>
Cc: John Paul Adrian Glaubitz <>
Subject: [PATCH v2][RFC] parisc: sata_sil: Add quirk for Samsung SSD 850 drive
Date: Sat, 13 Jul 2019 15:08:54 +0200
Message-ID: <> (raw)
In-Reply-To: <>

The Samsung SSD 850 drive needs a quirk to limit ATA requests to 15
sectors, otherwise one will face lots of read/write errors.
Alternatively the "sata_sil.slow_down=1" kernel module option can be set
on the command line to limit all attached drives.

Tested on a HP C8000 PA-RISC workstation.

Signed-off-by: Helge Deller <>

Changes in v2:
- Use full ATA identity string

diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 25b6a52be5ab..9e851534306d 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -141,6 +141,7 @@ static const struct sil_drivelist {
 	{ "ST3120022ASL",	SIL_QUIRK_MOD15WRITE },
 	{ "ST3160021ASL",	SIL_QUIRK_MOD15WRITE },
+	{ "Samsung SSD 850 EVO 250GB", SIL_QUIRK_MOD15WRITE },
 	{ "Maxtor 4D060H3",	SIL_QUIRK_UDMA5MAX },
 	{ }

      reply index

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-11 19:59 [PATCH][RFC] " Helge Deller
2019-07-13 13:08 ` Helge Deller [this message]

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