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From: Helge Deller <deller@gmx.de>
To: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	John David Anglin <dave.anglin@bell.net>
Subject: [PATCH][RFC] parisc: sata_sil: Add quirk for Samsung SSD 850 drive
Date: Thu, 11 Jul 2019 21:59:57 +0200	[thread overview]
Message-ID: <20190711195957.GA26789@ls3530.dellerweb.de> (raw)

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 <deller@gmx.de>

diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 25b6a52be5ab..8b8522d9166c 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 },
 	{ "TOSHIBA MK2561GSYN",	SIL_QUIRK_MOD15WRITE },
+	{ "Samsung SSD 850",	SIL_QUIRK_MOD15WRITE },
 	{ "Maxtor 4D060H3",	SIL_QUIRK_UDMA5MAX },
 	{ }
 };

             reply	other threads:[~2019-07-11 20:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-11 19:59 Helge Deller [this message]
2019-07-13 13:08 ` [PATCH v2][RFC] parisc: sata_sil: Add quirk for Samsung SSD 850 drive Helge Deller

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