openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[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: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Daniel J Blueman 2012-07-23 12:22:37 +08:00 committed by Jeff Garzik
parent 91e4d5a1d7
commit c531077f40
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/ata/libata-core.c
View File

@ -4129,6 +4129,7 @@ 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