DragonFly-2.3.1.172.g44441 master sys/dev/disk/ahci ahci.c
commit 4444122d5f4134b877d299c50b1105c0d15fd3d6
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Fri Jun 5 21:57:19 2009 -0700
AHCI - Add conditional logic for wcache and rahead, enhanced reporting, fixes
* Do not enable the write cache if the ident info says it is already enabled.
* Do not enable read-ahead if the ident info says it is already enabled.
* Enhanced error reporting.
* Report wcache and rahead state in the Ident.
NOTE: "WD My Book" ESATA consumer devices generate a fatal interface error
when presented with ATA_C_SET_FEATURES. The above code will quietly
work around the problem. The bug is likely in the My Book daughter
board.
Summary of changes:
sys/dev/disk/ahci/ahci.c | 19 +++++++++++++++----
1 files changed, 15 insertions(+), 4 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/4444122d5f4134b877d299c50b1105c0d15fd3d6
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