91 #define GROUP_SHIFT(duration)						\  argument
92 	_MAX(0, 16 - __builtin_clz(duration))
98 	.duration = {							\
129 	.duration = {							\
171 	.duration = {							\
208 	u16 duration[MCS_GROUP_RATES];  member
385 	u32 duration;  in ieee80211_calc_legacy_rate_duration()  local
388 		duration = 144 + 48; /* preamble + PLCP */  in ieee80211_calc_legacy_rate_duration()
390 			duration >>= 1;  in ieee80211_calc_legacy_rate_duration()
392 		duration += 10; /* SIFS */  in ieee80211_calc_legacy_rate_duration()
394 		duration = 20 + 16; /* premable + SIFS */  in ieee80211_calc_legacy_rate_duration()
398 	duration += (len * 10) / bitrate;  in ieee80211_calc_legacy_rate_duration()
400 	return duration;  in ieee80211_calc_legacy_rate_duration()
410 	u32 duration;  in ieee80211_get_rate_duration()  local
458 	duration = airtime_mcs_groups[group].duration[idx];  in ieee80211_get_rate_duration()
459 	duration <<= airtime_mcs_groups[group].shift;  in ieee80211_get_rate_duration()
462 	return duration;  in ieee80211_get_rate_duration()
471 	u32 duration, overhead = 0;  in ieee80211_calc_rx_airtime()  local
494 	duration = ieee80211_get_rate_duration(hw, status, &overhead);  in ieee80211_calc_rx_airtime()
495 	if (!duration)  in ieee80211_calc_rx_airtime()
498 	duration *= len;  in ieee80211_calc_rx_airtime()
499 	duration /= AVG_PKT_SIZE;  in ieee80211_calc_rx_airtime()
500 	duration /= 1024;  in ieee80211_calc_rx_airtime()
502 	return duration + overhead;  in ieee80211_calc_rx_airtime()
609 	u32 duration = 0;  in ieee80211_calc_tx_airtime()  local
621 		duration += cur_duration * rate->count;  in ieee80211_calc_tx_airtime()
624 	return duration;  in ieee80211_calc_tx_airtime()
655 		u32 duration, overhead;  in ieee80211_calc_expected_tx_airtime()  local
664 		duration = ieee80211_get_rate_duration(hw, &stat, &overhead);  in ieee80211_calc_expected_tx_airtime()
673 		if (duration > 400 * 1024) /* <= VHT20 MCS2 1S */  in ieee80211_calc_expected_tx_airtime()
675 		else if (duration > 250 * 1024) /* <= VHT20 MCS3 1S or MCS1 2S */  in ieee80211_calc_expected_tx_airtime()
677 		else if (duration > 150 * 1024) /* <= VHT20 MCS5 1S or MCS2 2S */  in ieee80211_calc_expected_tx_airtime()
679 		else if (duration > 70 * 1024) /* <= VHT20 MCS5 2S */  in ieee80211_calc_expected_tx_airtime()
682 			 duration > 20 * 1024) /* <= HE40 MCS6 2S */  in ieee80211_calc_expected_tx_airtime()
687 		duration *= len;  in ieee80211_calc_expected_tx_airtime()
688 		duration /= AVG_PKT_SIZE;  in ieee80211_calc_expected_tx_airtime()
689 		duration /= 1024;  in ieee80211_calc_expected_tx_airtime()
690 		duration += (overhead >> agg_shift);  in ieee80211_calc_expected_tx_airtime()
692 		return max_t(u32, duration, 4);  in ieee80211_calc_expected_tx_airtime()