From: Tejun Heo <tj@kernel.org>
To: Jeff Garzik <jeff@garzik.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
lethalwp@scarlet.be, Luke Macken <lmacken@redhat.com>
Subject: [PATCH upstream-fixes] libata: disable NCQ on Crucial C300 SSD
Date: Mon, 05 Apr 2010 10:51:26 +0900 [thread overview]
Message-ID: <4BB9421E.9050007@kernel.org> (raw)
Crucial said,
Thank you for contacting us. We know that with our M225 line of SSDs
you sometimes need to disable NCQ (native command queuing) to avoid
just the type of errors you're seeing. Our recommendation for the
M225 is to add libata.force=noncq to your Linux kernel boot options,
under the kernel ATA library option.
I have sent your feedback to the engineers working on the C300, and
asked them to please pass it on to the firmware team. I have been
notified that they are in the process of testing and finalizing a
new firmware version, that you can expect to see released around the
end of April. We’ll keep you posted as to when it will be available
for download.
So, turn off NCQ on the drive w/ the current firmware revision.
Reported in the following bug.
https://bugzilla.kernel.org/show_bug.cgi?id=15573
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: lethalwp@scarlet.be
Reported-by: Luke Macken <lmacken@redhat.com>
---
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 4a28420..c3076d4 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4353,6 +4353,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "HTS541080G9SA00", "MB4OC60D", ATA_HORKAGE_NONCQ, },
{ "HTS541010G9SA00", "MBZOC60D", ATA_HORKAGE_NONCQ, },
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=15573 */
+ { "C300-CTFDDAC128MAG", "0001", ATA_HORKAGE_NONCQ, },
+
/* devices which puke on READ_NATIVE_MAX */
{ "HDS724040KLSA80", "KFAOA20N", ATA_HORKAGE_BROKEN_HPA, },
{ "WDC WD3200JD-00KLB0", "WD-WCAMR1130137", ATA_HORKAGE_BROKEN_HPA },
next reply other threads:[~2010-04-05 1:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-05 1:51 Tejun Heo [this message]
2010-04-06 14:57 ` [PATCH upstream-fixes] libata: disable NCQ on Crucial C300 SSD Jeff Garzik
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