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3264a8d8f9
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>
870 lines
21 KiB
870 lines
21 KiB