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Commit 59c1ec2b authored by Ben Greear's avatar Ben Greear Committed by Johannes Berg
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mac80211: make beacon-loss-count configurable 



On loaded systems with lots of VIFs, I see lots of beacon
timeouts, even though the connection to the AP is very
good.  Allow tuning the beacon-loss-count variable to
give the system longer to process beacons if the user
prefers.

Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
[add the number of beacons to the message]
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 3a7bba64

net/mac80211/mlme.c

+7 −3
Original line number Diff line number Diff line
@@ -56,7 +56,10 @@ MODULE_PARM_DESC(max_probe_tries, 
 * probe on beacon miss before declaring the connection lost

 * default to what we want.

 */

#define IEEE80211_BEACON_LOSS_COUNT	7

static int beacon_loss_count = 7;

module_param(beacon_loss_count, int, 0644);

MODULE_PARM_DESC(beacon_loss_count,

		 "Number of beacon intervals before we decide beacon was lost.");



/*

 * Time the connection can be idle before we probe
@@ -1645,7 +1648,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, 
		bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value);



	sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec(

		IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int));

		beacon_loss_count * bss_conf->beacon_int));



	sdata->u.mgd.associated = cbss;

	memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
@@ -1977,7 +1980,8 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, 


	if (beacon)

		mlme_dbg_ratelimited(sdata,

				     "detected beacon loss from AP - probing\n");

				     "detected beacon loss from AP (missed %d beacons) - probing\n",

				     beacon_loss_count);



	ieee80211_cqm_rssi_notify(&sdata->vif,

		NL80211_CQM_RSSI_BEACON_LOSS_EVENT, GFP_KERNEL);