diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex/wmm.c')
-rw-r--r-- | drivers/net/wireless/mwifiex/wmm.c | 77 |
1 files changed, 63 insertions, 14 deletions
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 3fa4d41..600d819 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -127,6 +127,29 @@ mwifiex_wmm_allocate_ralist_node(struct mwifiex_adapter *adapter, u8 *ra) return ra_list; } +/* This function returns random no between 16 and 32 to be used as threshold + * for no of packets after which BA setup is initiated. + */ +static u8 mwifiex_get_random_ba_threshold(void) +{ + u32 sec, usec; + struct timeval ba_tstamp; + u8 ba_threshold; + + /* setup ba_packet_threshold here random number between + * [BA_SETUP_PACKET_OFFSET, + * BA_SETUP_PACKET_OFFSET+BA_SETUP_MAX_PACKET_THRESHOLD-1] + */ + + do_gettimeofday(&ba_tstamp); + sec = (ba_tstamp.tv_sec & 0xFFFF) + (ba_tstamp.tv_sec >> 16); + usec = (ba_tstamp.tv_usec & 0xFFFF) + (ba_tstamp.tv_usec >> 16); + ba_threshold = (((sec << 16) + usec) % BA_SETUP_MAX_PACKET_THRESHOLD) + + BA_SETUP_PACKET_OFFSET; + + return ba_threshold; +} + /* * This function allocates and adds a RA list for all TIDs * with the given RA. @@ -137,6 +160,12 @@ mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra) int i; struct mwifiex_ra_list_tbl *ra_list; struct mwifiex_adapter *adapter = priv->adapter; + struct mwifiex_sta_node *node; + unsigned long flags; + + spin_lock_irqsave(&priv->sta_list_spinlock, flags); + node = mwifiex_get_sta_entry(priv, ra); + spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); for (i = 0; i < MAX_NUM_TID; ++i) { ra_list = mwifiex_wmm_allocate_ralist_node(adapter, ra); @@ -145,14 +174,24 @@ mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra) if (!ra_list) break; - if (!mwifiex_queuing_ra_based(priv)) + ra_list->is_11n_enabled = 0; + if (!mwifiex_queuing_ra_based(priv)) { ra_list->is_11n_enabled = IS_11N_ENABLED(priv); - else - ra_list->is_11n_enabled = false; + } else { + ra_list->is_11n_enabled = + mwifiex_is_sta_11n_enabled(priv, node); + if (ra_list->is_11n_enabled) + ra_list->max_amsdu = node->max_amsdu; + } dev_dbg(adapter->dev, "data: ralist %p: is_11n_enabled=%d\n", ra_list, ra_list->is_11n_enabled); + if (ra_list->is_11n_enabled) { + ra_list->pkt_count = 0; + ra_list->ba_packet_thr = + mwifiex_get_random_ba_threshold(); + } list_add_tail(&ra_list->list, &priv->wmm.tid_tbl_ptr[i].ra_list); @@ -423,7 +462,7 @@ mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter) for (i = 0; i < adapter->priv_num; ++i) { priv = adapter->priv[i]; if (priv && atomic_read(&priv->wmm.tx_pkts_queued)) - return false; + return false; } return true; @@ -609,7 +648,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, u8 ra[ETH_ALEN], tid_down; unsigned long flags; - if (!priv->media_connected) { + if (!priv->media_connected && !mwifiex_is_skb_mgmt_frame(skb)) { dev_dbg(adapter->dev, "data: drop packet in disconnect\n"); mwifiex_write_data_complete(adapter, skb, -1); return; @@ -624,7 +663,8 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, /* In case of infra as we have already created the list during association we just don't have to call get_queue_raptr, we will have only 1 raptr for a tid in case of infra */ - if (!mwifiex_queuing_ra_based(priv)) { + if (!mwifiex_queuing_ra_based(priv) && + !mwifiex_is_skb_mgmt_frame(skb)) { if (!list_empty(&priv->wmm.tid_tbl_ptr[tid_down].ra_list)) ra_list = list_first_entry( &priv->wmm.tid_tbl_ptr[tid_down].ra_list, @@ -633,7 +673,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, ra_list = NULL; } else { memcpy(ra, skb->data, ETH_ALEN); - if (ra[0] & 0x01) + if (ra[0] & 0x01 || mwifiex_is_skb_mgmt_frame(skb)) memset(ra, 0xff, ETH_ALEN); ra_list = mwifiex_wmm_get_queue_raptr(priv, tid_down, ra); } @@ -647,6 +687,7 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv, skb_queue_tail(&ra_list->skb_head, skb); ra_list->total_pkts_size += skb->len; + ra_list->pkt_count++; atomic_inc(&priv->wmm.tx_pkts_queued); @@ -867,17 +908,16 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, if (adapter->bss_prio_tbl[j].bss_prio_cur == (struct mwifiex_bss_prio_node *) &adapter->bss_prio_tbl[j].bss_prio_head) { - bssprio_node = + adapter->bss_prio_tbl[j].bss_prio_cur = list_first_entry(&adapter->bss_prio_tbl[j] .bss_prio_head, struct mwifiex_bss_prio_node, list); - bssprio_head = bssprio_node; - } else { - bssprio_node = adapter->bss_prio_tbl[j].bss_prio_cur; - bssprio_head = bssprio_node; } + bssprio_node = adapter->bss_prio_tbl[j].bss_prio_cur; + bssprio_head = bssprio_node; + do { priv_tmp = bssprio_node->priv; hqp = &priv_tmp->wmm.highest_queued_prio; @@ -986,10 +1026,17 @@ mwifiex_is_11n_aggragation_possible(struct mwifiex_private *priv, { int count = 0, total_size = 0; struct sk_buff *skb, *tmp; + int max_amsdu_size; + + if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP && priv->ap_11n_enabled && + ptr->is_11n_enabled) + max_amsdu_size = min_t(int, ptr->max_amsdu, max_buf_size); + else + max_amsdu_size = max_buf_size; skb_queue_walk_safe(&ptr->skb_head, skb, tmp) { total_size += skb->len; - if (total_size >= max_buf_size) + if (total_size >= max_amsdu_size) break; if (++count >= MIN_NUM_AMSDU) return true; @@ -1050,6 +1097,7 @@ mwifiex_send_single_packet(struct mwifiex_private *priv, skb_queue_tail(&ptr->skb_head, skb); ptr->total_pkts_size += skb->len; + ptr->pkt_count++; tx_info->flags |= MWIFIEX_BUF_FLAG_REQUEUED_PKT; spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, ra_list_flags); @@ -1231,7 +1279,8 @@ mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter) /* ra_list_spinlock has been freed in mwifiex_send_single_packet() */ } else { - if (mwifiex_is_ampdu_allowed(priv, tid)) { + if (mwifiex_is_ampdu_allowed(priv, tid) && + ptr->pkt_count > ptr->ba_packet_thr) { if (mwifiex_space_avail_for_new_ba_stream(adapter)) { mwifiex_create_ba_tbl(priv, ptr->ra, tid, BA_SETUP_INPROGRESS); 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