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iwlwifi: mvm: set A-MPDU bit upon empty BA notification from FW 

The bit was set only if there was at least one reclaimed frame in an
aggregation. It's important to set it also in the case that the whole
A-MPDU was lost, otherwise rate scaling statistics will not be
updated correctly. Thus, set it always in ba notification handler.

This fixes a throughput degradation of about 20% in certain scenarios
with multiple streams on 11ac.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Gregory Greenman 2017-07-06 05:07:33 +03:00 committed by Luca Coelho
parent 92b0f7b26b
commit 9465c3f8ba
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
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@ -1821,6 +1821,8 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
struct iwl_mvm_tid_data *tid_data;
struct iwl_mvm_sta *mvmsta;
ba_info.flags = IEEE80211_TX_STAT_AMPDU;
if (iwl_mvm_has_new_tx_api(mvm)) {
struct iwl_mvm_compressed_ba_notif *ba_res =
(void *)pkt->data;