This is a note to let you know that I've just added the patch titled
libata: Prevent interface errors with Seagate FreeAgent GoFlex
to the 3.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
libata-prevent-interface-errors-with-seagate-freeagent-goflex.patch
and it can be found in the queue-3.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From c531077f40abc9f2129c4c83a30b3f8d6ce1c0e7 Mon Sep 17 00:00:00 2001
From: Daniel J Blueman <[email protected]>
Date: Mon, 23 Jul 2012 12:22:37 +0800
Subject: libata: Prevent interface errors with Seagate FreeAgent GoFlex
From: Daniel J Blueman <[email protected]>
commit c531077f40abc9f2129c4c83a30b3f8d6ce1c0e7 upstream.
When using my Seagate FreeAgent GoFlex eSATAp external disk enclosure,
interface errors are always seen until 1.5Gbps is negotiated [1]. This
occurs using any disk in the enclosure, and when the disk is connected
directly with a generic passive eSATAp cable, we see stable 3Gbps
operation as expected.
Blacklist 3Gbps mode to avoid dataloss and the ~30s delay bus reset
and renegotiation incurs.
Signed-off-by: Daniel J Blueman <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/ata/libata-core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4126,6 +4126,7 @@ static const struct ata_blacklist_entry
/* Devices which aren't very happy with higher link speeds */
{ "WD My Book", NULL, ATA_HORKAGE_1_5_GBPS, },
+ { "Seagate FreeAgent GoFlex", NULL, ATA_HORKAGE_1_5_GBPS, },
/*
* Devices which choke on SETXFER. Applies only if both the
Patches currently in stable-queue which might be from [email protected] are
queue-3.5/alsa-hda-fix-oops-at-codec-reset-reconfig.patch
queue-3.5/libata-prevent-interface-errors-with-seagate-freeagent-goflex.patch
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