diff options
| author | Tejun Heo <htejun@gmail.com> | 2007-12-15 15:05:06 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-12-17 20:33:15 -0500 |
| commit | 3264a8d8f95348e05cc6ac1ce747a8339ed7ab08 (patch) | |
| tree | 7d9045e726e7e63d6a7cad426b1c9f000298c886 /lib/idr.c | |
| parent | 0e8634bf8e48e50aa96c7e7becafcf9d98c1a28d (diff) | |
libata-acpi: implement _GTF command filtering
Implement _GTF command filtering which can be controlled by
libata.acpi_filter kernel parameter. Currently SETXFER and LOCK
commands are filtered.
libata configures transfer mode by itself and _GTF SETXFER commands
can potentially disrupt device configuration. _GTM/_STM mechanism
can't handle hotplugging too well and when _GTF is executed,
controller is in PIO0 rather than the mode _STM configured.
Note that detecting SET MAX LOCK requires looking at the previous
command. This adds a bit to code complexity.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'lib/idr.c')
0 files changed, 0 insertions, 0 deletions