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| author | Daniel J Blueman <daniel@quora.org> | 2012-07-23 12:22:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-02 09:47:41 -0700 |
| commit | 894682fdede531729e9597cab56615e479933ffd (patch) | |
| tree | c64d1d46208410a504ad2f093e01be4cee24aa30 /drivers/ata | |
| parent | 25dee10e0c0b7093df5c32284cc85817820c6003 (diff) | |
| download | kernel_samsung_smdk4412-894682fdede531729e9597cab56615e479933ffd.zip kernel_samsung_smdk4412-894682fdede531729e9597cab56615e479933ffd.tar.gz kernel_samsung_smdk4412-894682fdede531729e9597cab56615e479933ffd.tar.bz2 | |
libata: Prevent interface errors with Seagate FreeAgent GoFlex
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 <daniel@quora.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libata-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 000d03a..600ede0 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4138,6 +4138,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { /* 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 |