Commit af6d39db authored by Tamizh Chelvam's avatar Tamizh Chelvam Committed by Kalle Valo
Browse files

ath11k: Add peer max mpdu parameter in peer assoc command 



Add peer max mpdu length configuration support in peer_assoc_he
parameters. Noticed low throughput for the STA which
supports HE, HT and not VHT in MU-MIMO case without this
configuration

Signed-off-by: default avatarTamizh Chelvam <tamizhr@codeaurora.org>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588611900-21185-2-git-send-email-tamizhr@codeaurora.org
parent c7187acc

drivers/net/wireless/ath/ath11k/mac.c

+25 −0
Original line number Diff line number Diff line
@@ -1276,6 +1276,7 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, 
				   struct peer_assoc_params *arg)

{

	const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;

	u8 ampdu_factor;

	u16 v;



	if (!he_cap->has_he)
@@ -1292,6 +1293,30 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, 
	/* the top most byte is used to indicate BSS color info */

	arg->peer_he_ops &= 0xffffff;



	/* As per section 26.6.1 11ax Draft5.0, if the Max AMPDU Exponent Extension

	 * in HE cap is zero, use the arg->peer_max_mpdu as calculated while parsing

	 * VHT caps(if VHT caps is present) or HT caps (if VHT caps is not present).

	 *

	 * For non-zero value of Max AMPDU Extponent Extension in HE MAC caps,

	 * if a HE STA sends VHT cap and HE cap IE in assoc request then, use

	 * MAX_AMPDU_LEN_FACTOR as 20 to calculate max_ampdu length.

	 * If a HE STA that does not send VHT cap, but HE and HT cap in assoc

	 * request, then use MAX_AMPDU_LEN_FACTOR as 16 to calculate max_ampdu

	 * length.

	 */

	ampdu_factor = (he_cap->he_cap_elem.mac_cap_info[3] &

			IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) >>

			IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_SHIFT;



	if (ampdu_factor) {

		if (sta->vht_cap.vht_supported)

			arg->peer_max_mpdu = (1 << (IEEE80211_HE_VHT_MAX_AMPDU_FACTOR +

						    ampdu_factor)) - 1;

		else if (sta->ht_cap.ht_supported)

			arg->peer_max_mpdu = (1 << (IEEE80211_HE_HT_MAX_AMPDU_FACTOR +

						    ampdu_factor)) - 1;

	}



	if (he_cap->he_cap_elem.phy_cap_info[6] &

	    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {

		int bit = 7;