From: Tejun Heo Date: Fri, 2 Feb 2007 07:22:30 +0000 (+0900) Subject: libata: improve ata_down_xfermask_limit() X-Git-Tag: v2.6.21-rc2~25^2~49 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=458337dbb120d33f326e2b19d54eca8cf179b5c0;p=pandora-kernel.git 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 Signed-off-by: Jeff Garzik --- Reading git-diff-tree failed