diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 5fb80dd8bbbca64a6bcf6a98a935c022d25ece22..f3147633dda2305b09c9bf481b367882a2bae940 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -3125,7 +3125,10 @@ enum ieee80211_filter_flags { * @IEEE80211_AMPDU_RX_START: start RX aggregation * @IEEE80211_AMPDU_RX_STOP: stop RX aggregation * @IEEE80211_AMPDU_TX_START: start TX aggregation, the driver must either - * call ieee80211_start_tx_ba_cb_irqsafe() or return the special + * call ieee80211_start_tx_ba_cb_irqsafe() or + * call ieee80211_start_tx_ba_cb_irqsafe() with status + * %IEEE80211_AMPDU_TX_START_DELAY_ADDBA to delay addba after + * ieee80211_start_tx_ba_cb_irqsafe is called, or just return the special * status %IEEE80211_AMPDU_TX_START_IMMEDIATE. * @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational * @IEEE80211_AMPDU_TX_STOP_CONT: stop TX aggregation but continue transmitting @@ -3151,6 +3154,7 @@ enum ieee80211_ampdu_mlme_action { }; #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1 +#define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2 /** * struct ieee80211_ampdu_params - AMPDU action parameters diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 32f40c4f3120109e4f155cad44de86032d888f20..c2d5f512526d8f8f880d613fbe40356378fe59f1 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -483,6 +483,8 @@ static void ieee80211_send_addba_with_timeout(struct sta_info *sta, tid_tx->dialog_token, sta->tid_seq[tid] >> 4, buf_size, tid_tx->timeout); + + WARN_ON(test_and_set_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state)); } void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) @@ -521,7 +523,9 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) params.ssn = sta->tid_seq[tid] >> 4; ret = drv_ampdu_action(local, sdata, ¶ms); - if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) { + if (ret == IEEE80211_AMPDU_TX_START_DELAY_ADDBA) { + return; + } else if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) { /* * We didn't send the request yet, so don't need to check * here if we already got a response, just mark as driver @@ -765,6 +769,12 @@ void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, if (WARN_ON(test_and_set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state))) return; + if (!test_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state)) { + ieee80211_send_addba_with_timeout(sta, tid_tx); + /* RESPONSE_RECEIVED state whould trigger the flow again */ + return; + } + if (test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) ieee80211_agg_tx_operational(local, sta, tid); } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 36f1abaab9fffa3ad2be705cea148432e06999c6..a5de3aa6ea4232165960983de697943ed148d95a 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -3,6 +3,7 @@ * Copyright 2002-2005, Devicescape Software, Inc. * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright(c) 2015-2017 Intel Deutschland GmbH + * Copyright(c) 2020 Intel Corporation */ #ifndef STA_INFO_H @@ -116,6 +117,7 @@ enum ieee80211_sta_info_flags { #define HT_AGG_STATE_WANT_STOP 5 #define HT_AGG_STATE_START_CB 6 #define HT_AGG_STATE_STOP_CB 7 +#define HT_AGG_STATE_SENT_ADDBA 8 DECLARE_EWMA(avg_signal, 10, 8) enum ieee80211_agg_stop_reason {