Commit 5af70c86 authored Feb 28, 2012 by Arik Nemtsov Committed by Luciano Coelho Feb 28, 2012

wl12xx: set the ELP entry delay to the FW dyn-ps timeout

With PSM handled in FW, the checks in wl1271_elp_work() are always true.
Thus during active traffic we constantly enter and exit ELP (many times
per second). As each ELP exit takes ~10ms, this can have an adverse
effect on throughput and interactivity.
Set the ELP timeout to the dyn-ps timeout. This period is longer and
avoids the above problem. It also makes sense to stay out of ELP while
we are awake on the network, to minimize delays in Tx/Rx. The same thing
was done by the mac80211 dynamic-ps mechanism before the FW DPS changes.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

parent e8b461c3

drivers/net/wireless/wl12xx/ps.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -69,8 +69,6 @@ void wl1271_elp_work(struct work_struct *work)
		mutex_unlock(&wl->mutex);
		}

		#define ELP_ENTRY_DELAY 5

		/* Routines to toggle sleep mode while in ELP */
		void wl1271_ps_elp_sleep(struct wl1271 *wl)
		{
		@@ -90,7 +88,7 @@ void wl1271_ps_elp_sleep(struct wl1271 *wl)
		}

		ieee80211_queue_delayed_work(wl->hw, &wl->elp_work,
		msecs_to_jiffies(ELP_ENTRY_DELAY));
		msecs_to_jiffies(wl->conf.conn.dynamic_ps_timeout));
		}

		int wl1271_ps_elp_wakeup(struct wl1271 *wl)