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Commit 87f55616 authored by Gregory Greenman's avatar Gregory Greenman Committed by Luca Coelho
Browse files

iwlwifi: mvm: rs: fix TLC statistics collection 



Statistics should be collected according to the actual rate a
frame/aggregation was transmitted and not according to the initial rate
from the last LQ command (these rates are different if the frames were
retransmitted at a lower rate from the rate scale table).

This is needed to remove throughput degradation.

Signed-off-by: default avatarGregory Greenman <gregory.greenman@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 9465c3f8

drivers/net/wireless/intel/iwlwifi/mvm/rs.c

+4 −4
Original line number Diff line number Diff line
@@ -1291,7 +1291,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 
	 * first index into rate scale table.

	 */

	if (info->flags & IEEE80211_TX_STAT_AMPDU) {

		rs_collect_tpc_data(mvm, lq_sta, curr_tbl, lq_rate.index,

		rs_collect_tpc_data(mvm, lq_sta, curr_tbl, tx_resp_rate.index,

				    info->status.ampdu_len,

				    info->status.ampdu_ack_len,

				    reduced_txp);
@@ -1312,7 +1312,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 
		if (info->status.ampdu_ack_len == 0)

			info->status.ampdu_len = 1;



		rs_collect_tlc_data(mvm, lq_sta, curr_tbl, lq_rate.index,

		rs_collect_tlc_data(mvm, lq_sta, curr_tbl, tx_resp_rate.index,

				    info->status.ampdu_len,

				    info->status.ampdu_ack_len);
@@ -1348,11 +1348,11 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 
				continue;



			rs_collect_tpc_data(mvm, lq_sta, tmp_tbl,

					    lq_rate.index, 1,

					    tx_resp_rate.index, 1,

					    i < retries ? 0 : legacy_success,

					    reduced_txp);

			rs_collect_tlc_data(mvm, lq_sta, tmp_tbl,

					    lq_rate.index, 1,

					    tx_resp_rate.index, 1,

					    i < retries ? 0 : legacy_success);

		}