• Vivek Natarajan's avatar
    mac80211: Check for queued frames before entering power save. · e8306f98
    Vivek Natarajan authored
    In a highly noisy environment, the tx rate of the driver drops and
    the application slows down since it has not yet received ACKs for
    the frames already queued in the hardware. Since this ACK may take
    more than 100ms, stopping the dev queues for entering PS at this
    stage breaks applications, WMM test cases in my testing.
    If there are frames already pending in the tx queue, postponing the
    PS logic helps to avoid redundant queue stops. When power save is
    enabled by default and in a noisy environment, this API certainly
    helps in improving the average throughput.
    Signed-off-by: default avatarVivek Natarajan <vnatarajan@atheros.com>
    Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
    e8306f98
driver-trace.h 24.3 KB