sys/net80211/ieee80211_amrr.c

53 #define is_success(amn)	\
54 	((amn)->amn_retrycnt < (amn)->amn_txcnt / 10)
55 #define is_failure(amn)	\
56 	((amn)->amn_retrycnt > (amn)->amn_txcnt / 3)
57 #define is_enough(amn)		\
58 	((amn)->amn_txcnt > 10)
149 	struct ieee80211_amrr_node *amn;
153 		ni->ni_rctls = amn = malloc(sizeof(struct ieee80211_amrr_node),
155 		if (amn == NULL) {
161 		amn = ni->ni_rctls;
162 	amn->amn_amrr = amrr;
163 	amn->amn_success = 0;
164 	amn->amn_recovery = 0;
165 	amn->amn_txcnt = amn->amn_retrycnt = 0;
166 	amn->amn_success_threshold = amrr->amrr_min_success_threshold;
188 	for (amn->amn_rix = rs->rs_nrates - 1; amn->amn_rix > 0;
189 	    amn->amn_rix--) {
193 		    (rs->rs_rates[amn->amn_rix] & 0x7) < 4)
195 		else if ((rs->rs_rates[amn->amn_rix] & IEEE80211_RATE_VAL) <= 72)
197 		rate = rs->rs_rates[amn->amn_rix] & IEEE80211_RATE_VAL;
206 	amn->amn_ticks = ticks;
221 amrr_update(struct ieee80211_amrr *amrr, struct ieee80211_amrr_node *amn,
224 	int rix = amn->amn_rix;
227 	KASSERT(is_enough(amn), ("txcnt %d", amn->amn_txcnt));
240 	    amn->amn_txcnt,
241 	    amn->amn_retrycnt);
251 	if (is_success(amn)) {
252 		amn->amn_success++;
253 		if (amn->amn_success >= amn->amn_success_threshold &&
255 			amn->amn_recovery = 1;
256 			amn->amn_success = 0;
261 			    amn->amn_txcnt, amn->amn_retrycnt);
263 			amn->amn_recovery = 0;
265 	} else if (is_failure(amn)) {
266 		amn->amn_success = 0;
268 			if (amn->amn_recovery) {
269 				amn->amn_success_threshold *= 2;
270 				if (amn->amn_success_threshold >
272 					amn->amn_success_threshold =
275 				amn->amn_success_threshold =
282 			    amn->amn_txcnt, amn->amn_retrycnt);
284 		amn->amn_recovery = 0;
288 	amn->amn_txcnt = 0;
289 	amn->amn_retrycnt = 0;
302 	struct ieee80211_amrr_node *amn = ni->ni_rctls;
303 	struct ieee80211_amrr *amrr = amn->amn_amrr;
315 	if (is_enough(amn) && (ticks - amn->amn_ticks) > amrr->amrr_interval) {
316 		rix = amrr_update(amrr, amn, ni);
317 		if (rix != amn->amn_rix) {
325 			amn->amn_rix = rix;
327 		amn->amn_ticks = ticks;
329 		rix = amn->amn_rix;
343 	struct ieee80211_amrr_node *amn = ni->ni_rctls;
346 	amn->amn_txcnt++;
348 		amn->amn_success++;
349 	amn->amn_retrycnt += retries;
361 	struct ieee80211_amrr_node *amn = ni->ni_rctls;
364 	amn->amn_txcnt = txcnt;
365 	amn->amn_success = success;
366 	amn->amn_retrycnt = retrycnt;