From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- drivers/net/wireless/mwifiex/wmm.c | 156 +++++++++++++++++++++++++++++++++++-- 1 file changed, 151 insertions(+), 5 deletions(-) (limited to 'drivers/net/wireless/mwifiex/wmm.c') diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index a8ea21c33..173d3663c 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -160,9 +160,10 @@ void mwifiex_ralist_add(struct mwifiex_private *priv, const u8 *ra) ra_list->tdls_link = false; ra_list->ba_status = BA_SETUP_NONE; ra_list->amsdu_in_ampdu = false; + ra_list->tx_paused = false; if (!mwifiex_queuing_ra_based(priv)) { - if (mwifiex_get_tdls_link_status(priv, ra) == - TDLS_SETUP_COMPLETE) { + if (mwifiex_is_tdls_link_setup + (mwifiex_get_tdls_link_status(priv, ra))) { ra_list->tdls_link = true; ra_list->is_11n_enabled = mwifiex_tdls_peer_11n_enabled(priv, ra); @@ -448,6 +449,11 @@ mwifiex_wmm_init(struct mwifiex_adapter *adapter) } } +int mwifiex_bypass_txlist_empty(struct mwifiex_adapter *adapter) +{ + return atomic_read(&adapter->bypass_tx_pending) ? false : true; +} + /* * This function checks if WMM Tx queue is empty. */ @@ -459,6 +465,8 @@ mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter) for (i = 0; i < adapter->priv_num; ++i) { priv = adapter->priv[i]; + if (priv && !priv->port_open) + continue; if (priv && atomic_read(&priv->wmm.tx_pkts_queued)) return false; } @@ -580,6 +588,10 @@ mwifiex_clean_txrx(struct mwifiex_private *priv) skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) mwifiex_write_data_complete(priv->adapter, skb, 0, -1); + skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) + mwifiex_write_data_complete(priv->adapter, skb, 0, -1); + atomic_set(&priv->adapter->bypass_tx_pending, 0); + idr_for_each(&priv->ack_status_frames, mwifiex_free_ack_frame, NULL); idr_destroy(&priv->ack_status_frames); } @@ -603,6 +615,88 @@ mwifiex_wmm_get_ralist_node(struct mwifiex_private *priv, u8 tid, return NULL; } +void mwifiex_update_ralist_tx_pause(struct mwifiex_private *priv, u8 *mac, + u8 tx_pause) +{ + struct mwifiex_ra_list_tbl *ra_list; + u32 pkt_cnt = 0, tx_pkts_queued; + unsigned long flags; + int i; + + spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); + + for (i = 0; i < MAX_NUM_TID; ++i) { + ra_list = mwifiex_wmm_get_ralist_node(priv, i, mac); + if (ra_list && ra_list->tx_paused != tx_pause) { + pkt_cnt += ra_list->total_pkt_count; + ra_list->tx_paused = tx_pause; + if (tx_pause) + priv->wmm.pkts_paused[i] += + ra_list->total_pkt_count; + else + priv->wmm.pkts_paused[i] -= + ra_list->total_pkt_count; + } + } + + if (pkt_cnt) { + tx_pkts_queued = atomic_read(&priv->wmm.tx_pkts_queued); + if (tx_pause) + tx_pkts_queued -= pkt_cnt; + else + tx_pkts_queued += pkt_cnt; + + atomic_set(&priv->wmm.tx_pkts_queued, tx_pkts_queued); + atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); + } + spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); +} + +/* This function update non-tdls peer ralist tx_pause while + * tdls channel swithing + */ +void mwifiex_update_ralist_tx_pause_in_tdls_cs(struct mwifiex_private *priv, + u8 *mac, u8 tx_pause) +{ + struct mwifiex_ra_list_tbl *ra_list; + u32 pkt_cnt = 0, tx_pkts_queued; + unsigned long flags; + int i; + + spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags); + + for (i = 0; i < MAX_NUM_TID; ++i) { + list_for_each_entry(ra_list, &priv->wmm.tid_tbl_ptr[i].ra_list, + list) { + if (!memcmp(ra_list->ra, mac, ETH_ALEN)) + continue; + + if (ra_list && ra_list->tx_paused != tx_pause) { + pkt_cnt += ra_list->total_pkt_count; + ra_list->tx_paused = tx_pause; + if (tx_pause) + priv->wmm.pkts_paused[i] += + ra_list->total_pkt_count; + else + priv->wmm.pkts_paused[i] -= + ra_list->total_pkt_count; + } + } + } + + if (pkt_cnt) { + tx_pkts_queued = atomic_read(&priv->wmm.tx_pkts_queued); + if (tx_pause) + tx_pkts_queued -= pkt_cnt; + else + tx_pkts_queued += pkt_cnt; + + atomic_set(&priv->wmm.tx_pkts_queued, tx_pkts_queued); + atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); + } + spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); +} + /* * This function retrieves an RA list node for a given TID and * RA address pair. @@ -669,6 +763,18 @@ mwifiex_is_ralist_valid(struct mwifiex_private *priv, return false; } +/* + * This function adds a packet to bypass TX queue. + * This is special TX queue for packets which can be sent even when port_open + * is false. + */ +void +mwifiex_wmm_add_buf_bypass_txqueue(struct mwifiex_private *priv, + struct sk_buff *skb) +{ + skb_queue_tail(&priv->bypass_txq, skb); +} + /* * This function adds a packet to WMM queue. * @@ -723,6 +829,9 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, !mwifiex_is_skb_mgmt_frame(skb)) { switch (tdls_status) { case TDLS_SETUP_COMPLETE: + case TDLS_CHAN_SWITCHING: + case TDLS_IN_BASE_CHAN: + case TDLS_IN_OFF_CHAN: ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, ra); tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT; @@ -765,7 +874,10 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, atomic_set(&priv->wmm.highest_queued_prio, priv->tos_to_tid_inv[tid_down]); - atomic_inc(&priv->wmm.tx_pkts_queued); + if (ra_list->tx_paused) + priv->wmm.pkts_paused[tid_down]++; + else + atomic_inc(&priv->wmm.tx_pkts_queued); spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); } @@ -970,7 +1082,8 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, priv_tmp = adapter->bss_prio_tbl[j].bss_prio_cur->priv; - if (atomic_read(&priv_tmp->wmm.tx_pkts_queued) == 0) + if (!priv_tmp->port_open || + (atomic_read(&priv_tmp->wmm.tx_pkts_queued) == 0)) continue; /* iterate over the WMM queues of the BSS */ @@ -987,7 +1100,8 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, list_for_each_entry(ptr, &tid_ptr->ra_list, list) { - if (!skb_queue_empty(&ptr->skb_head)) + if (!ptr->tx_paused && + !skb_queue_empty(&ptr->skb_head)) /* holds both locks */ goto found; } @@ -1339,6 +1453,38 @@ mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter) return 0; } +void mwifiex_process_bypass_tx(struct mwifiex_adapter *adapter) +{ + struct mwifiex_tx_param tx_param; + struct sk_buff *skb; + struct mwifiex_txinfo *tx_info; + struct mwifiex_private *priv; + int i; + + if (adapter->data_sent || adapter->tx_lock_flag) + return; + + for (i = 0; i < adapter->priv_num; ++i) { + priv = adapter->priv[i]; + + if (skb_queue_empty(&priv->bypass_txq)) + continue; + + skb = skb_dequeue(&priv->bypass_txq); + tx_info = MWIFIEX_SKB_TXCB(skb); + + /* no aggregation for bypass packets */ + tx_param.next_pkt_len = 0; + + if (mwifiex_process_tx(priv, skb, &tx_param) == -EBUSY) { + skb_queue_head(&priv->bypass_txq, skb); + tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; + } else { + atomic_dec(&adapter->bypass_tx_pending); + } + } +} + /* * This function transmits the highest priority packet awaiting in the * WMM Queues. -- cgit v1.2.3-54-g00ecf