From 8469cdef1f123e2e3e56645f1ac26c7cfb333d9c Mon Sep 17 00:00:00 2001 From: Sujith Date: Wed, 29 Oct 2008 10:19:28 +0530 Subject: [PATCH] mac80211: Add a new event in ieee80211_ampdu_mlme_action Send a notification to the driver on succesful reception of an ADDBA response, add IEEE80211_AMPDU_TX_RESUME for this purpose. Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/core.h | 1 + drivers/net/wireless/ath9k/main.c | 3 +++ drivers/net/wireless/ath9k/xmit.c | 19 +++++++++++++++++++ include/net/mac80211.h | 2 ++ net/mac80211/ht.c | 10 +++++++++- 5 files changed, 34 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h index 5b17e88ab9a9..69e8d3e41131 100644 --- a/drivers/net/wireless/ath9k/core.h +++ b/drivers/net/wireless/ath9k/core.h @@ -581,6 +581,7 @@ void ath_tx_aggr_teardown(struct ath_softc *sc, int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn); int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); +void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_newassoc(struct ath_softc *sc, struct ath_node *node, int isnew, int isuapsd); void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta); diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 65a532e08ecd..fb50aa0fc996 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -1482,6 +1482,9 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw, ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); break; + case IEEE80211_AMPDU_TX_RESUME: + ath_tx_aggr_resume(sc, sta, tid); + break; default: DPRINTF(sc, ATH_DBG_FATAL, "%s: Unknown AMPDU action\n", __func__); diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c index 7e6f4e59a5d1..fe386b6dadac 100644 --- a/drivers/net/wireless/ath9k/xmit.c +++ b/drivers/net/wireless/ath9k/xmit.c @@ -2371,6 +2371,25 @@ int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) return 0; } +/* Resume tx aggregation */ + +void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) +{ + struct ath_atx_tid *txtid; + struct ath_node *an; + + an = (struct ath_node *)sta->drv_priv; + + if (sc->sc_flags & SC_OP_TXAGGR) { + txtid = ATH_AN_2_TID(an, tid); + txtid->baw_size = + IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor; + txtid->state |= AGGR_ADDBA_COMPLETE; + txtid->state &= ~AGGR_ADDBA_PROGRESS; + ath_tx_resume_tid(sc, txtid); + } +} + /* * Performs transmit side cleanup when TID changes from aggregated to * unaggregated. diff --git a/include/net/mac80211.h b/include/net/mac80211.h index af2ec6f9beb9..53856003aa18 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1127,12 +1127,14 @@ enum ieee80211_filter_flags { * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation * @IEEE80211_AMPDU_TX_START: start Tx aggregation * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation + * @IEEE80211_AMPDU_TX_RESUME: resume TX aggregation */ enum ieee80211_ampdu_mlme_action { IEEE80211_AMPDU_RX_START, IEEE80211_AMPDU_RX_STOP, IEEE80211_AMPDU_TX_START, IEEE80211_AMPDU_TX_STOP, + IEEE80211_AMPDU_TX_RESUME, }; /** diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 08009d4b7d6e..3e231d756776 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -987,7 +987,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, { struct ieee80211_hw *hw = &local->hw; u16 capab; - u16 tid; + u16 tid, start_seq_num; u8 *state; capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); @@ -1024,6 +1024,14 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, local->hw.ampdu_queues) ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); + if (local->ops->ampdu_action) { + (void)local->ops->ampdu_action(hw, + IEEE80211_AMPDU_TX_RESUME, + &sta->sta, tid, &start_seq_num); + } +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Resuming TX aggregation for tid %d\n", tid); +#endif /* CONFIG_MAC80211_HT_DEBUG */ spin_unlock_bh(&sta->lock); } else { sta->ampdu_mlme.addba_req_num[tid]++; -- 2.34.1