diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.h | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 30 |
3 files changed, 41 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index 566b65944fb8..78ff21a88a8b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -1664,6 +1664,7 @@ void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, */ if (agg) { int remaining = cnt; + int sleep_tx_count; spin_lock_bh(&mvmsta->lock); for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { @@ -1688,9 +1689,12 @@ void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, } remaining -= n_queued; } + sleep_tx_count = cnt - remaining; + if (reason == IEEE80211_FRAME_RELEASE_UAPSD) + mvmsta->sleep_tx_count = sleep_tx_count; spin_unlock_bh(&mvmsta->lock); - cmd.sleep_tx_count = cpu_to_le16(cnt - remaining); + cmd.sleep_tx_count = cpu_to_le16(sleep_tx_count); if (WARN_ON(cnt - remaining == 0)) { ieee80211_sta_eosp(sta); return; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h index 0631cc0a6d3c..ce1b16ac4c66 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h @@ -303,6 +303,11 @@ static inline u16 iwl_mvm_tid_queued(struct iwl_mvm_tid_data *tid_data) * @tt_tx_protection: is thermal throttling enable Tx protection? * @disable_tx: is tx to this STA disabled? * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON) + * @sleep_tx_count: the number of frames that we told the firmware to let out + * even when that station is asleep. This is useful in case the queue + * gets empty before all the frames were sent, which can happen when + * we are sending frames from an AMPDU queue and there was a hole in + * the BA window. To be used for UAPSD only. * * When mac80211 creates a station it reserves some space (hw->sta_data_size) * in the structure for use by driver. This structure is placed in that @@ -329,6 +334,7 @@ struct iwl_mvm_sta { bool disable_tx; u8 agg_tids; + u8 sleep_tx_count; }; static inline struct iwl_mvm_sta * diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index aaebb5d4462a..cc0cdce84954 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -788,13 +788,43 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, if (tid != IWL_TID_NON_QOS) { struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; + bool send_eosp_ndp = false; spin_lock_bh(&mvmsta->lock); tid_data->next_reclaimed = next_reclaimed; IWL_DEBUG_TX_REPLY(mvm, "Next reclaimed packet:%d\n", next_reclaimed); iwl_mvm_check_ratid_empty(mvm, sta, tid); + + if (mvmsta->sleep_tx_count) { + mvmsta->sleep_tx_count--; + if (mvmsta->sleep_tx_count && + !iwl_mvm_tid_queued(tid_data)) { + /* + * The number of frames in the queue + * dropped to 0 even if we sent less + * frames than we thought we had on the + * Tx queue. + * This means we had holes in the BA + * window that we just filled, ask + * mac80211 to send EOSP since the + * firmware won't know how to do that. + * Send NDP and the firmware will send + * EOSP notification that will trigger + * a call to ieee80211_sta_eosp(). + */ + send_eosp_ndp = true; + } + } + spin_unlock_bh(&mvmsta->lock); + if (send_eosp_ndp) { + iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, + IEEE80211_FRAME_RELEASE_UAPSD, + 1, tid, false, false); + mvmsta->sleep_tx_count = 0; + ieee80211_send_eosp_nullfunc(sta, tid); + } } if (mvmsta->next_status_eosp) { |