diff options
author | Sujith <Sujith.Manoharan@atheros.com> | 2010-06-15 10:24:37 +0530 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2010-06-15 16:02:22 -0400 |
commit | d7ca21393d39cb2e73dfc4c516e7be37ba01789e (patch) | |
tree | 35c2afd019f0274a2b812f091742c1d53823f155 /drivers/net/wireless/ath/ath9k/htc_drv_main.c | |
parent | 9a2af8892a74573cec4bea2149843a93442a12de (diff) | |
download | op-kernel-dev-d7ca21393d39cb2e73dfc4c516e7be37ba01789e.zip op-kernel-dev-d7ca21393d39cb2e73dfc4c516e7be37ba01789e.tar.gz |
ath9k_htc: Fix ampdu_action callback
Now that ampdu_action() can sleep, remove all
the driver hacks and just issue WMI commands
to the target.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_main.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_main.c | 93 |
1 files changed, 24 insertions, 69 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index b9206e4..05445d8 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -438,13 +438,13 @@ static void ath9k_htc_update_rate(struct ath9k_htc_priv *priv, bss_conf->bssid, be32_to_cpu(trate.capflags)); } -static int ath9k_htc_aggr_oper(struct ath9k_htc_priv *priv, - struct ieee80211_vif *vif, - u8 *sta_addr, u8 tid, bool oper) +int ath9k_htc_tx_aggr_oper(struct ath9k_htc_priv *priv, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + enum ieee80211_ampdu_mlme_action action, u16 tid) { struct ath_common *common = ath9k_hw_common(priv->ah); struct ath9k_htc_target_aggr aggr; - struct ieee80211_sta *sta = NULL; struct ath9k_htc_sta *ista; int ret = 0; u8 cmd_rsp; @@ -453,72 +453,28 @@ static int ath9k_htc_aggr_oper(struct ath9k_htc_priv *priv, return -EINVAL; memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr)); - - rcu_read_lock(); - - /* Check if we are able to retrieve the station */ - sta = ieee80211_find_sta(vif, sta_addr); - if (!sta) { - rcu_read_unlock(); - return -EINVAL; - } - ista = (struct ath9k_htc_sta *) sta->drv_priv; - if (oper) - ista->tid_state[tid] = AGGR_START; - else - ista->tid_state[tid] = AGGR_STOP; - aggr.sta_index = ista->index; - - rcu_read_unlock(); - - aggr.tidno = tid; - aggr.aggr_enable = oper; + aggr.tidno = tid & 0xf; + aggr.aggr_enable = (action == IEEE80211_AMPDU_TX_START) ? true : false; WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr); if (ret) ath_print(common, ATH_DBG_CONFIG, "Unable to %s TX aggregation for (%pM, %d)\n", - (oper) ? "start" : "stop", sta->addr, tid); + (aggr.aggr_enable) ? "start" : "stop", sta->addr, tid); else ath_print(common, ATH_DBG_CONFIG, - "%s aggregation for (%pM, %d)\n", - (oper) ? "Starting" : "Stopping", sta->addr, tid); - - return ret; -} + "%s TX aggregation for (%pM, %d)\n", + (aggr.aggr_enable) ? "Starting" : "Stopping", + sta->addr, tid); -void ath9k_htc_aggr_work(struct work_struct *work) -{ - int ret = 0; - struct ath9k_htc_priv *priv = - container_of(work, struct ath9k_htc_priv, - ath9k_aggr_work.work); - struct ath9k_htc_aggr_work *wk = &priv->aggr_work; - - mutex_lock(&wk->mutex); - - switch (wk->action) { - case IEEE80211_AMPDU_TX_START: - ret = ath9k_htc_aggr_oper(priv, wk->vif, wk->sta_addr, - wk->tid, true); - if (!ret) - ieee80211_start_tx_ba_cb_irqsafe(wk->vif, wk->sta_addr, - wk->tid); - break; - case IEEE80211_AMPDU_TX_STOP: - ath9k_htc_aggr_oper(priv, wk->vif, wk->sta_addr, - wk->tid, false); - ieee80211_stop_tx_ba_cb_irqsafe(wk->vif, wk->sta_addr, wk->tid); - break; - default: - ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, - "Unknown AMPDU action\n"); - } + spin_lock_bh(&priv->tx_lock); + ista->tid_state[tid] = (aggr.aggr_enable && !ret) ? AGGR_START : AGGR_STOP; + spin_unlock_bh(&priv->tx_lock); - mutex_unlock(&wk->mutex); + return ret; } /*********/ @@ -1266,7 +1222,6 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw) /* Cancel all the running timers/work .. */ cancel_work_sync(&priv->ps_work); cancel_delayed_work_sync(&priv->ath9k_ani_work); - cancel_delayed_work_sync(&priv->ath9k_aggr_work); cancel_delayed_work_sync(&priv->ath9k_led_blink_work); ath9k_led_stop_brightness(priv); @@ -1767,8 +1722,8 @@ static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw, u16 tid, u16 *ssn) { struct ath9k_htc_priv *priv = hw->priv; - struct ath9k_htc_aggr_work *work = &priv->aggr_work; struct ath9k_htc_sta *ista; + int ret = 0; switch (action) { case IEEE80211_AMPDU_RX_START: @@ -1776,26 +1731,26 @@ static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw, case IEEE80211_AMPDU_RX_STOP: break; case IEEE80211_AMPDU_TX_START: + ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid); + if (!ret) + ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); + break; case IEEE80211_AMPDU_TX_STOP: - if (!(priv->op_flags & OP_TXAGGR)) - return -ENOTSUPP; - memcpy(work->sta_addr, sta->addr, ETH_ALEN); - work->hw = hw; - work->vif = vif; - work->action = action; - work->tid = tid; - ieee80211_queue_delayed_work(hw, &priv->ath9k_aggr_work, 0); + ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid); + ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); break; case IEEE80211_AMPDU_TX_OPERATIONAL: ista = (struct ath9k_htc_sta *) sta->drv_priv; + spin_lock_bh(&priv->tx_lock); ista->tid_state[tid] = AGGR_OPERATIONAL; + spin_unlock_bh(&priv->tx_lock); break; default: ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, "Unknown AMPDU action\n"); } - return 0; + return ret; } static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw) |