diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 63 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c | 88 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 12 |
5 files changed, 92 insertions, 80 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 45eb45af5953..bc3268a0c752 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -408,10 +408,8 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif, int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid) { - int txq_id, sta_id, ssn; - struct iwl_tid_data *tid_data; - int write_ptr, read_ptr; - unsigned long flags; + int sta_id; + struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; sta_id = iwl_sta_id(sta); @@ -420,61 +418,8 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif, return -ENXIO; } - spin_lock_irqsave(&priv->shrd->sta_lock, flags); - - tid_data = &priv->shrd->tid_data[sta_id][tid]; - ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4; - txq_id = tid_data->agg.txq_id; - - switch (priv->shrd->tid_data[sta_id][tid].agg.state) { - case IWL_EMPTYING_HW_QUEUE_ADDBA: - /* - * This can happen if the peer stops aggregation - * again before we've had a chance to drain the - * queue we selected previously, i.e. before the - * session was really started completely. - */ - IWL_DEBUG_HT(priv, "AGG stop before setup done\n"); - goto turn_off; - case IWL_AGG_ON: - break; - default: - IWL_WARN(priv, "Stopping AGG while state not ON or starting\n"); - } - - write_ptr = priv->txq[txq_id].q.write_ptr; - read_ptr = priv->txq[txq_id].q.read_ptr; - - /* The queue is not empty */ - if (write_ptr != read_ptr) { - IWL_DEBUG_HT(priv, "Stopping a non empty AGG HW QUEUE\n"); - priv->shrd->tid_data[sta_id][tid].agg.state = - IWL_EMPTYING_HW_QUEUE_DELBA; - spin_unlock_irqrestore(&priv->shrd->sta_lock, flags); - return 0; - } - - IWL_DEBUG_HT(priv, "HW queue is empty\n"); - turn_off: - priv->shrd->tid_data[sta_id][tid].agg.state = IWL_AGG_OFF; - - /* do not restore/save irqs */ - spin_unlock(&priv->shrd->sta_lock); - spin_lock(&priv->shrd->lock); - - /* - * the only reason this call can fail is queue number out of range, - * which can happen if uCode is reloaded and all the station - * information are lost. if it is outside the range, there is no need - * to deactivate the uCode queue, just return "success" to allow - * mac80211 to clean up it own data. - */ - iwl_trans_txq_agg_disable(trans(priv), txq_id); - spin_unlock_irqrestore(&priv->shrd->lock, flags); - - ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); - - return 0; + return iwl_trans_tx_agg_disable(trans(priv), vif_priv->ctx->ctxid, + sta_id, tid); } static void iwlagn_non_agg_tx_status(struct iwl_priv *priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h index ba82c8bca242..a31083125faa 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h @@ -189,7 +189,10 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); void iwl_trans_txq_update_byte_cnt_tbl(struct iwl_trans *trans, struct iwl_tx_queue *txq, u16 byte_cnt); -int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id); +void iwl_trans_pcie_txq_agg_disable(struct iwl_trans *trans, int txq_id); +int iwl_trans_pcie_tx_agg_disable(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, int sta_id, + int tid); void iwl_trans_set_wr_ptrs(struct iwl_trans *trans, int txq_id, u32 index); void iwl_trans_tx_queue_set_status(struct iwl_priv *priv, struct iwl_tx_queue *txq, diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c index da8d79eb4dc5..aa44b9242d07 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c @@ -560,32 +560,92 @@ int iwl_trans_pcie_tx_agg_alloc(struct iwl_trans *trans, return 0; } -int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id) + +void iwl_trans_pcie_txq_agg_disable(struct iwl_trans *trans, int txq_id) { - struct iwl_trans *trans = trans(priv); + iwlagn_tx_queue_stop_scheduler(trans, txq_id); + + iwl_clear_bits_prph(bus(trans), SCD_AGGR_SEL, (1 << txq_id)); + + priv(trans)->txq[txq_id].q.read_ptr = 0; + priv(trans)->txq[txq_id].q.write_ptr = 0; + /* supposes that ssn_idx is valid (!= 0xFFF) */ + iwl_trans_set_wr_ptrs(trans, txq_id, 0); + + iwl_clear_bits_prph(bus(trans), SCD_INTERRUPT_MASK, (1 << txq_id)); + iwl_txq_ctx_deactivate(priv(trans), txq_id); + iwl_trans_tx_queue_set_status(priv(trans), + &priv(trans)->txq[txq_id], 0, 0); +} + +int iwl_trans_pcie_tx_agg_disable(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, int sta_id, + int tid) +{ + unsigned long flags; + int read_ptr, write_ptr; + struct iwl_tid_data *tid_data; + int txq_id; + + spin_lock_irqsave(&trans->shrd->sta_lock, flags); + + tid_data = &trans->shrd->tid_data[sta_id][tid]; + txq_id = tid_data->agg.txq_id; + if ((IWLAGN_FIRST_AMPDU_QUEUE > txq_id) || (IWLAGN_FIRST_AMPDU_QUEUE + - hw_params(priv).num_ampdu_queues <= txq_id)) { - IWL_ERR(priv, + hw_params(trans).num_ampdu_queues <= txq_id)) { + IWL_ERR(trans, "queue number out of range: %d, must be %d to %d\n", txq_id, IWLAGN_FIRST_AMPDU_QUEUE, IWLAGN_FIRST_AMPDU_QUEUE + - hw_params(priv).num_ampdu_queues - 1); + hw_params(trans).num_ampdu_queues - 1); + spin_unlock_irqrestore(&trans->shrd->sta_lock, flags); return -EINVAL; } - iwlagn_tx_queue_stop_scheduler(trans, txq_id); + switch (trans->shrd->tid_data[sta_id][tid].agg.state) { + case IWL_EMPTYING_HW_QUEUE_ADDBA: + /* + * This can happen if the peer stops aggregation + * again before we've had a chance to drain the + * queue we selected previously, i.e. before the + * session was really started completely. + */ + IWL_DEBUG_HT(trans, "AGG stop before setup done\n"); + goto turn_off; + case IWL_AGG_ON: + break; + default: + IWL_WARN(trans, "Stopping AGG while state not ON" + "or starting\n"); + } - iwl_clear_bits_prph(bus(priv), SCD_AGGR_SEL, (1 << txq_id)); + write_ptr = priv(trans)->txq[txq_id].q.write_ptr; + read_ptr = priv(trans)->txq[txq_id].q.read_ptr; - priv->txq[txq_id].q.read_ptr = 0; - priv->txq[txq_id].q.write_ptr = 0; - /* supposes that ssn_idx is valid (!= 0xFFF) */ - iwl_trans_set_wr_ptrs(trans, txq_id, 0); + /* The queue is not empty */ + if (write_ptr != read_ptr) { + IWL_DEBUG_HT(trans, "Stopping a non empty AGG HW QUEUE\n"); + trans->shrd->tid_data[sta_id][tid].agg.state = + IWL_EMPTYING_HW_QUEUE_DELBA; + spin_unlock_irqrestore(&trans->shrd->sta_lock, flags); + return 0; + } + + IWL_DEBUG_HT(trans, "HW queue is empty\n"); +turn_off: + trans->shrd->tid_data[sta_id][tid].agg.state = IWL_AGG_OFF; + + /* do not restore/save irqs */ + spin_unlock(&trans->shrd->sta_lock); + spin_lock(&trans->shrd->lock); + + iwl_trans_pcie_txq_agg_disable(trans, txq_id); + + spin_unlock_irqrestore(&trans->shrd->lock, flags); - iwl_clear_bits_prph(bus(priv), SCD_INTERRUPT_MASK, (1 << txq_id)); - iwl_txq_ctx_deactivate(priv, txq_id); - iwl_trans_tx_queue_set_status(priv, &priv->txq[txq_id], 0, 0); + iwl_stop_tx_ba_trans_ready(priv(trans), ctx, sta_id, tid); return 0; } diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c index 0256454427fd..ab35fd827bdc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -1281,7 +1281,7 @@ static int iwlagn_txq_check_empty(struct iwl_trans *trans, (q->read_ptr == q->write_ptr)) { IWL_DEBUG_HT(trans, "HW queue empty: continue DELBA flow\n"); - iwl_trans_pcie_txq_agg_disable(priv(trans), txq_id); + iwl_trans_pcie_txq_agg_disable(trans, txq_id); tid_data->agg.state = IWL_AGG_OFF; iwl_stop_tx_ba_trans_ready(priv(trans), NUM_IWL_RXON_CTX, @@ -2015,7 +2015,7 @@ const struct iwl_trans_ops trans_ops_pcie = { .tx = iwl_trans_pcie_tx, .reclaim = iwl_trans_pcie_reclaim, - .txq_agg_disable = iwl_trans_pcie_txq_agg_disable, + .tx_agg_disable = iwl_trans_pcie_tx_agg_disable, .tx_agg_alloc = iwl_trans_pcie_tx_agg_alloc, .txq_agg_setup = iwl_trans_pcie_txq_agg_setup, diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 7586a1512e84..1fd6bde42a7c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -97,7 +97,7 @@ struct iwl_device_cmd; * @tx_agg_alloc: allocate resources for a TX BA session * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is * ready and a successful ADDBA response has been received. - * @txq_agg_disable: de-configure a Tx queue to send AMPDUs + * @tx_agg_disable: de-configure a Tx queue to send AMPDUs * @kick_nic: remove the RESET from the embedded CPU and let it run * @free: release all the ressource for the transport layer itself such as * irq, tasklet etc... @@ -127,7 +127,9 @@ struct iwl_trans_ops { int txq_id, int ssn, u32 status, struct sk_buff_head *skbs); - int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id); + int (*tx_agg_disable)(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, int sta_id, + int tid); int (*tx_agg_alloc)(struct iwl_trans *trans, enum iwl_rxon_context_id ctx, int sta_id, int tid, u16 *ssn); @@ -216,9 +218,11 @@ static inline void iwl_trans_reclaim(struct iwl_trans *trans, int sta_id, trans->ops->reclaim(trans, sta_id, tid, txq_id, ssn, status, skbs); } -static inline int iwl_trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id) +static inline int iwl_trans_tx_agg_disable(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, + int sta_id, int tid) { - return trans->ops->txq_agg_disable(priv(trans), txq_id); + return trans->ops->tx_agg_disable(trans, ctx, sta_id, tid); } static inline int iwl_trans_tx_agg_alloc(struct iwl_trans *trans, |