414 pick_sample_rate(struct sample_softc *ssc , struct ath_node *an,  in pick_sample_rate()  argument
474 		if (sn->stats[size_bin][rix].successive_failures > ssc->max_successive_failures &&  in pick_sample_rate()
475 		    ticks - sn->stats[size_bin][rix].last_tx < ssc->stale_failure_timeout) {  in pick_sample_rate()
668 	struct sample_softc *ssc = ATH_SOFTC_SAMPLE(sc);  in ath_rate_findrate()  local
749 	    (sn->packets_since_sample[size_bin]*ssc->sample_rate/100)) {  in ath_rate_findrate()
750 		rix = pick_sample_rate(ssc, an, rt, size_bin);  in ath_rate_findrate()
784 		} else if (ticks - ssc->min_switch > sn->ticks_since_switch[size_bin]) {  in ath_rate_findrate()
789 			    __func__, ticks - ssc->min_switch, sn->ticks_since_switch[size_bin]);  in ath_rate_findrate()
969 	struct sample_softc *ssc = ATH_SOFTC_SAMPLE(sc);  in update_stats()  local
1009 	if (sn->stats[size_bin][rix0].total_packets < ssc->smoothing_minpackets) {  in update_stats()
1017 			((sn->stats[size_bin][rix0].average_tx_time * ssc->smoothing_rate) +   in update_stats()
1018 			 (tt * (100 - ssc->smoothing_rate))) / 100;  in update_stats()
1039 	    ssc->smoothing_minpackets) {  in update_stats()
1047 			((sn->stats[size_bin][rix0].ewma_pct * ssc->smoothing_rate) +  in update_stats()
1048 			 (pct * (100 - ssc->smoothing_rate))) / 100;  in update_stats()
1587 	struct sample_softc *ssc = arg1;  in ath_rate_sysctl_smoothing_rate()  local
1590 	rate = ssc->smoothing_rate;  in ath_rate_sysctl_smoothing_rate()
1596 	ssc->smoothing_rate = rate;  in ath_rate_sysctl_smoothing_rate()
1597 	ssc->smoothing_minpackets = 100 / (100 - rate);  in ath_rate_sysctl_smoothing_rate()
1604 	struct sample_softc *ssc = arg1;  in ath_rate_sysctl_sample_rate()  local
1607 	rate = ssc->sample_rate;  in ath_rate_sysctl_sample_rate()
1613 	ssc->sample_rate = rate;  in ath_rate_sysctl_sample_rate()
1618 ath_rate_sysctlattach(struct ath_softc *sc, struct sample_softc *ssc)  in ath_rate_sysctlattach()  argument
1625 	    ssc, 0, ath_rate_sysctl_smoothing_rate, "I",  in ath_rate_sysctlattach()
1629 	    ssc, 0, ath_rate_sysctl_sample_rate, "I",  in ath_rate_sysctlattach()
1640 	struct sample_softc *ssc;  in ath_rate_attach()  local
1642 	ssc = malloc(sizeof(struct sample_softc), M_DEVBUF, M_NOWAIT|M_ZERO);  in ath_rate_attach()
1643 	if (ssc == NULL)  in ath_rate_attach()
1645 	ssc->arc.arc_space = sizeof(struct sample_node);  in ath_rate_attach()
1646 	ssc->smoothing_rate = 75;		/* ewma percentage ([0..99]) */  in ath_rate_attach()
1647 	ssc->smoothing_minpackets = 100 / (100 - ssc->smoothing_rate);  in ath_rate_attach()
1648 	ssc->sample_rate = 10;			/* %time to try diff tx rates */  in ath_rate_attach()
1649 	ssc->max_successive_failures = 3;	/* threshold for rate sampling*/  in ath_rate_attach()
1650 	ssc->stale_failure_timeout = 10 * hz;	/* 10 seconds */  in ath_rate_attach()
1651 	ssc->min_switch = hz;			/* 1 second */  in ath_rate_attach()
1652 	ath_rate_sysctlattach(sc, ssc);  in ath_rate_attach()
1653 	return &ssc->arc;  in ath_rate_attach()
1659 	struct sample_softc *ssc = (struct sample_softc *) arc;  in ath_rate_detach()  local
1661 	free(ssc, M_DEVBUF);  in ath_rate_detach()