diff options
| author | Tejun Heo <htejun@gmail.com> | 2007-02-02 07:22:30 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-02-21 09:58:16 (GMT) |
| commit | 458337dbb120d33f326e2b19d54eca8cf179b5c0 (patch) | |
| tree | 91bc5284430b5a8856ec1b2fd4c277c4eb3f8827 /drivers/block/cciss_cmd.h | |
| parent | a619f981b477035027dd27dfbee6148b4cd4a83c (diff) | |
| download | linux-458337dbb120d33f326e2b19d54eca8cf179b5c0.tar.xz | |
libata: improve ata_down_xfermask_limit()
Make ata_down_xfermask_limit() accept @sel instead of @force_pio0.
@sel selects how the xfermask limit will be adjusted. The following
selectors are defined.
* ATA_DNXFER_PIO : only speed down PIO
* ATA_DNXFER_DMA : only speed down DMA, don't cause transfer mode change
* ATA_DNXFER_40C : apply 40c cable limit
* ATA_DNXFER_FORCE_PIO : force PIO
* ATA_DNXFER_FORCE_PIO0 : force PIO0 (same as original with @force_pio0 == 1)
* ATA_DNXFER_ANY : same as original with @force_pio0 == 0
Currently, only ANY and FORCE_PIO0 are used to maintain the original
behavior. Other selectors will be used later to improve EH speed down
sequence.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/block/cciss_cmd.h')
0 files changed, 0 insertions, 0 deletions