Commit c531077f authored by Daniel J Blueman's avatar Daniel J Blueman Committed by Jeff Garzik

[libata] Prevent interface errors with Seagate FreeAgent GoFlex

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: default avatarDaniel J Blueman <daniel@quora.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 91e4d5a1
...@@ -4129,6 +4129,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { ...@@ -4129,6 +4129,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
/* Devices which aren't very happy with higher link speeds */ /* Devices which aren't very happy with higher link speeds */
{ "WD My Book", NULL, ATA_HORKAGE_1_5_GBPS, }, { "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 * Devices which choke on SETXFER. Applies only if both the
......
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