mirror of https://gitee.com/openkylin/linux.git
iwlwifi: A-MPDU Tx activation by load measures
This patch gives a heuristic for activation of the A-MPDU Tx. As the rate scaling is rate aware, it now also measures estimated load, and sends A-MPDU activation after a threshold has been met. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ron Rindjunsky
John W. Linville
parent
995564382f
commit
0c11b4de5d
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@ -83,7 +83,7 @@ struct iwl4965_rate_scale_data {
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/**
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* struct iwl4965_scale_tbl_info -- tx params and success history for all rates
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*
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* There are two of these in struct iwl_rate_scale_priv,
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* There are two of these in struct iwl4965_lq_sta,
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* one for "active", and one for "search".
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*/
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struct iwl4965_scale_tbl_info {
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@ -98,8 +98,23 @@ struct iwl4965_scale_tbl_info {
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struct iwl4965_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
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};
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#ifdef CONFIG_IWL4965_HT
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struct iwl4965_traffic_load {
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unsigned long time_stamp; /* age of the oldest statistics */
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u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
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* slice */
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u32 total; /* total num of packets during the
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* last TID_MAX_TIME_DIFF */
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u8 queue_count; /* number of queues that has
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* been used since the last cleanup */
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u8 head; /* start of the circular buffer */
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};
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#endif /* CONFIG_IWL4965_HT */
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/**
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* struct iwl_rate_scale_priv -- driver's rate scaling private structure
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* struct iwl4965_lq_sta -- driver's rate scaling private structure
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*
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* Pointer to this gets passed back and forth between driver and mac80211.
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*/
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@ -136,9 +151,16 @@ struct iwl4965_lq_sta {
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struct iwl4965_link_quality_cmd lq;
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struct iwl4965_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
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#ifdef CONFIG_IWL4965_HT
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struct iwl4965_traffic_load load[TID_MAX_LOAD_COUNT];
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u8 tx_agg_tid_en;
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#endif
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct dentry *rs_sta_dbgfs_scale_table_file;
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struct dentry *rs_sta_dbgfs_stats_table_file;
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#ifdef CONFIG_IWL4965_HT
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struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
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#endif
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struct iwl4965_rate dbg_fixed;
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struct iwl4965_priv *drv;
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#endif
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@ -269,6 +291,135 @@ static void rs_rate_scale_clear_window(struct iwl4965_rate_scale_data *window)
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window->stamp = 0;
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}
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#ifdef CONFIG_IWL4965_HT
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/*
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* removes the old data from the statistics. All data that is older than
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* TID_MAX_TIME_DIFF, will be deleted.
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*/
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static void rs_tl_rm_old_stats(struct iwl4965_traffic_load *tl, u32 curr_time)
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{
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/* The oldest age we want to keep */
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u32 oldest_time = curr_time - TID_MAX_TIME_DIFF;
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while (tl->queue_count &&
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(tl->time_stamp < oldest_time)) {
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tl->total -= tl->packet_count[tl->head];
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tl->packet_count[tl->head] = 0;
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tl->time_stamp += TID_QUEUE_CELL_SPACING;
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tl->queue_count--;
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tl->head++;
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if (tl->head >= TID_QUEUE_MAX_SIZE)
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tl->head = 0;
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}
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}
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/*
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* increment traffic load value for tid and also remove
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* any old values if passed the certain time period
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*/
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static void rs_tl_add_packet(struct iwl4965_lq_sta *lq_data, u8 tid)
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{
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u32 curr_time = jiffies_to_msecs(jiffies);
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u32 time_diff;
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s32 index;
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struct iwl4965_traffic_load *tl = NULL;
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if (tid >= TID_MAX_LOAD_COUNT)
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return;
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tl = &lq_data->load[tid];
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curr_time -= curr_time % TID_ROUND_VALUE;
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/* Happens only for the first packet. Initialize the data */
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if (!(tl->queue_count)) {
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tl->total = 1;
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tl->time_stamp = curr_time;
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tl->queue_count = 1;
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tl->head = 0;
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tl->packet_count[0] = 1;
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return;
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}
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time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
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index = time_diff / TID_QUEUE_CELL_SPACING;
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/* The history is too long: remove data that is older than */
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/* TID_MAX_TIME_DIFF */
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if (index >= TID_QUEUE_MAX_SIZE)
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rs_tl_rm_old_stats(tl, curr_time);
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index = (tl->head + index) % TID_QUEUE_MAX_SIZE;
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tl->packet_count[index] = tl->packet_count[index] + 1;
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tl->total = tl->total + 1;
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if ((index + 1) > tl->queue_count)
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tl->queue_count = index + 1;
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}
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/*
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get the traffic load value for tid
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*/
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static u32 rs_tl_get_load(struct iwl4965_lq_sta *lq_data, u8 tid)
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{
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u32 curr_time = jiffies_to_msecs(jiffies);
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u32 time_diff;
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s32 index;
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struct iwl4965_traffic_load *tl = NULL;
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if (tid >= TID_MAX_LOAD_COUNT)
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return 0;
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tl = &(lq_data->load[tid]);
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curr_time -= curr_time % TID_ROUND_VALUE;
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if (!(tl->queue_count))
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return 0;
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time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
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index = time_diff / TID_QUEUE_CELL_SPACING;
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/* The history is too long: remove data that is older than */
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/* TID_MAX_TIME_DIFF */
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if (index >= TID_QUEUE_MAX_SIZE)
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rs_tl_rm_old_stats(tl, curr_time);
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return tl->total;
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}
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static void rs_tl_turn_on_agg_for_tid(struct iwl4965_priv *priv,
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struct iwl4965_lq_sta *lq_data, u8 tid,
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struct sta_info *sta)
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{
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unsigned long state;
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DECLARE_MAC_BUF(mac);
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spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
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state = sta->ampdu_mlme.tid_tx[tid].state;
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spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
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if (state == HT_AGG_STATE_IDLE &&
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rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) {
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IWL_DEBUG_HT("Starting Tx agg: STA: %s tid: %d\n",
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print_mac(mac, sta->addr), tid);
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ieee80211_start_tx_ba_session(priv->hw, sta->addr, tid);
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}
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}
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static void rs_tl_turn_on_agg(struct iwl4965_priv *priv, u8 tid,
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struct iwl4965_lq_sta *lq_data,
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struct sta_info *sta)
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{
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if ((tid < TID_MAX_LOAD_COUNT))
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rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
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else if (tid == IWL_AGG_ALL_TID)
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for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++)
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rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
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}
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#endif /* CONFIG_IWLWIFI_HT */
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/**
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* rs_collect_tx_data - Update the success/failure sliding window
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*
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@ -1134,7 +1285,7 @@ static int rs_switch_to_mimo(struct iwl4965_priv *priv,
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return 0;
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#else
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return -1;
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#endif /*CONFIG_IWL4965_HT */
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#endif /*CONFIG_IWL4965_HT */
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}
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/*
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@ -1197,7 +1348,7 @@ static int rs_switch_to_siso(struct iwl4965_priv *priv,
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#else
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return -1;
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#endif /*CONFIG_IWL4965_HT */
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#endif /*CONFIG_IWL4965_HT */
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}
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/*
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@ -1354,6 +1505,7 @@ static int rs_move_siso_to_other(struct iwl4965_priv *priv,
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break;
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case IWL_SISO_SWITCH_GI:
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IWL_DEBUG_HT("LQ: SISO SWITCH TO GI\n");
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memcpy(search_tbl, tbl, sz);
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search_tbl->action = 0;
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if (search_tbl->is_SGI)
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@ -1419,6 +1571,7 @@ static int rs_move_mimo_to_other(struct iwl4965_priv *priv,
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case IWL_MIMO_SWITCH_ANTENNA_B:
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IWL_DEBUG_HT("LQ: MIMO SWITCH TO SISO\n");
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/* Set up new search table for SISO */
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memcpy(search_tbl, tbl, sz);
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search_tbl->lq_type = LQ_SISO;
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@ -1603,6 +1756,10 @@ static void rs_rate_scale_perform(struct iwl4965_priv *priv,
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u8 active_tbl = 0;
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u8 done_search = 0;
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u16 high_low;
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#ifdef CONFIG_IWL4965_HT
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u8 tid = MAX_TID_COUNT;
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__le16 *qc;
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#endif
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IWL_DEBUG_RATE("rate scale calculate new rate for skb\n");
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@ -1623,6 +1780,13 @@ static void rs_rate_scale_perform(struct iwl4965_priv *priv,
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}
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lq_sta = (struct iwl4965_lq_sta *)sta->rate_ctrl_priv;
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#ifdef CONFIG_IWL4965_HT
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qc = ieee80211_get_qos_ctrl(hdr);
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if (qc) {
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tid = (u8)(le16_to_cpu(*qc) & 0xf);
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rs_tl_add_packet(lq_sta, tid);
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}
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#endif
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/*
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* Select rate-scale / modulation-mode table to work with in
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* the rest of this function: "search" if searching for better
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@ -1943,15 +2107,14 @@ static void rs_rate_scale_perform(struct iwl4965_priv *priv,
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* mode for a while before next round of mode comparisons. */
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if (lq_sta->enable_counter &&
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(lq_sta->action_counter >= IWL_ACTION_LIMIT)) {
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#ifdef CONFIG_IWL4965_HT_AGG
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/* If appropriate, set up aggregation! */
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if ((lq_sta->last_tpt > TID_AGG_TPT_THREHOLD) &&
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(priv->lq_mngr.agg_ctrl.auto_agg)) {
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priv->lq_mngr.agg_ctrl.tid_retry =
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TID_ALL_SPECIFIED;
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schedule_work(&priv->agg_work);
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#ifdef CONFIG_IWL4965_HT
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if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
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(lq_sta->tx_agg_tid_en & (1 << tid)) &&
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(tid != MAX_TID_COUNT)) {
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IWL_DEBUG_HT("try to aggregate tid %d\n", tid);
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rs_tl_turn_on_agg(priv, tid, lq_sta, sta);
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}
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#endif /*CONFIG_IWL4965_HT_AGG */
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#endif /*CONFIG_IWL4965_HT */
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lq_sta->action_counter = 0;
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rs_set_stay_in_table(0, lq_sta);
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}
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@ -2209,6 +2372,8 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
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IWL_DEBUG_HT("SISO RATE 0x%X MIMO RATE 0x%X\n",
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lq_sta->active_siso_rate,
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lq_sta->active_mimo_rate);
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/* as default allow aggregation for all tids */
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lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
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#endif /*CONFIG_IWL4965_HT*/
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#ifdef CONFIG_MAC80211_DEBUGFS
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lq_sta->drv = priv;
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@ -2352,12 +2517,6 @@ static void rs_clear(void *priv_rate)
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IWL_DEBUG_RATE("enter\n");
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priv->lq_mngr.lq_ready = 0;
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#ifdef CONFIG_IWL4965_HT
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#ifdef CONFIG_IWL4965_HT_AGG
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if (priv->lq_mngr.agg_ctrl.granted_ba)
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iwl4965_turn_off_agg(priv, TID_ALL_SPECIFIED);
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#endif /*CONFIG_IWL4965_HT_AGG */
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#endif /* CONFIG_IWL4965_HT */
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IWL_DEBUG_RATE("leave\n");
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}
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@ -2524,6 +2683,12 @@ static void rs_add_debugfs(void *priv, void *priv_sta,
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lq_sta->rs_sta_dbgfs_stats_table_file =
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debugfs_create_file("rate_stats_table", 0600, dir,
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lq_sta, &rs_sta_dbgfs_stats_table_ops);
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#ifdef CONFIG_IWL4965_HT
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lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
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debugfs_create_u8("tx_agg_tid_enable", 0600, dir,
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&lq_sta->tx_agg_tid_en);
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#endif
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}
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static void rs_remove_debugfs(void *priv, void *priv_sta)
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@ -2531,6 +2696,9 @@ static void rs_remove_debugfs(void *priv, void *priv_sta)
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struct iwl4965_lq_sta *lq_sta = priv_sta;
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debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);
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debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
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#ifdef CONFIG_IWL4965_HT
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debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);
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#endif
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}
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#endif
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@ -212,6 +212,18 @@ enum {
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#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
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/* load per tid defines for A-MPDU activation */
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#define IWL_AGG_TPT_THREHOLD 0
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#define IWL_AGG_LOAD_THRESHOLD 10
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#define IWL_AGG_ALL_TID 0xff
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#define TID_QUEUE_CELL_SPACING 50 /*mS */
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#define TID_QUEUE_MAX_SIZE 20
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#define TID_ROUND_VALUE 5 /* mS */
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#define TID_MAX_LOAD_COUNT 8
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#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
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#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
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extern const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT];
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enum iwl4965_table_type {
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@ -2946,378 +2946,6 @@ void iwl4965_set_rxon_chain(struct iwl4965_priv *priv)
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IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain);
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}
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#ifdef CONFIG_IWL4965_HT
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#ifdef CONFIG_IWL4965_HT_AGG
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/*
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get the traffic load value for tid
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*/
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static u32 iwl4965_tl_get_load(struct iwl4965_priv *priv, u8 tid)
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{
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u32 load = 0;
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u32 current_time = jiffies_to_msecs(jiffies);
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u32 time_diff;
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s32 index;
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unsigned long flags;
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struct iwl4965_traffic_load *tid_ptr = NULL;
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if (tid >= TID_MAX_LOAD_COUNT)
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return 0;
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tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
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current_time -= current_time % TID_ROUND_VALUE;
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spin_lock_irqsave(&priv->lq_mngr.lock, flags);
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if (!(tid_ptr->queue_count))
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goto out;
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time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
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index = time_diff / TID_QUEUE_CELL_SPACING;
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if (index >= TID_QUEUE_MAX_SIZE) {
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u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
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while (tid_ptr->queue_count &&
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(tid_ptr->time_stamp < oldest_time)) {
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tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
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tid_ptr->packet_count[tid_ptr->head] = 0;
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tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
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tid_ptr->queue_count--;
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tid_ptr->head++;
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if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
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tid_ptr->head = 0;
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}
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}
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load = tid_ptr->total;
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out:
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spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
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return load;
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}
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/*
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increment traffic load value for tid and also remove
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any old values if passed the certian time period
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*/
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static void iwl4965_tl_add_packet(struct iwl4965_priv *priv, u8 tid)
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{
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u32 current_time = jiffies_to_msecs(jiffies);
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u32 time_diff;
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s32 index;
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unsigned long flags;
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struct iwl4965_traffic_load *tid_ptr = NULL;
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if (tid >= TID_MAX_LOAD_COUNT)
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return;
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tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
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current_time -= current_time % TID_ROUND_VALUE;
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spin_lock_irqsave(&priv->lq_mngr.lock, flags);
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if (!(tid_ptr->queue_count)) {
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tid_ptr->total = 1;
|
||||
tid_ptr->time_stamp = current_time;
|
||||
tid_ptr->queue_count = 1;
|
||||
tid_ptr->head = 0;
|
||||
tid_ptr->packet_count[0] = 1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
|
||||
index = time_diff / TID_QUEUE_CELL_SPACING;
|
||||
|
||||
if (index >= TID_QUEUE_MAX_SIZE) {
|
||||
u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
|
||||
|
||||
while (tid_ptr->queue_count &&
|
||||
(tid_ptr->time_stamp < oldest_time)) {
|
||||
tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
|
||||
tid_ptr->packet_count[tid_ptr->head] = 0;
|
||||
tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
|
||||
tid_ptr->queue_count--;
|
||||
tid_ptr->head++;
|
||||
if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
|
||||
tid_ptr->head = 0;
|
||||
}
|
||||
}
|
||||
|
||||
index = (tid_ptr->head + index) % TID_QUEUE_MAX_SIZE;
|
||||
tid_ptr->packet_count[index] = tid_ptr->packet_count[index] + 1;
|
||||
tid_ptr->total = tid_ptr->total + 1;
|
||||
|
||||
if ((index + 1) > tid_ptr->queue_count)
|
||||
tid_ptr->queue_count = index + 1;
|
||||
out:
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
|
||||
}
|
||||
|
||||
#define MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS 7
|
||||
enum HT_STATUS {
|
||||
BA_STATUS_FAILURE = 0,
|
||||
BA_STATUS_INITIATOR_DELBA,
|
||||
BA_STATUS_RECIPIENT_DELBA,
|
||||
BA_STATUS_RENEW_ADDBA_REQUEST,
|
||||
BA_STATUS_ACTIVE,
|
||||
};
|
||||
|
||||
/**
|
||||
* iwl4964_tl_ba_avail - Find out if an unused aggregation queue is available
|
||||
*/
|
||||
static u8 iwl4964_tl_ba_avail(struct iwl4965_priv *priv)
|
||||
{
|
||||
int i;
|
||||
struct iwl4965_lq_mngr *lq;
|
||||
u8 count = 0;
|
||||
u16 msk;
|
||||
|
||||
lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
|
||||
|
||||
/* Find out how many agg queues are in use */
|
||||
for (i = 0; i < TID_MAX_LOAD_COUNT ; i++) {
|
||||
msk = 1 << i;
|
||||
if ((lq->agg_ctrl.granted_ba & msk) ||
|
||||
(lq->agg_ctrl.wait_for_agg_status & msk))
|
||||
count++;
|
||||
}
|
||||
|
||||
if (count < MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void iwl4965_ba_status(struct iwl4965_priv *priv,
|
||||
u8 tid, enum HT_STATUS status);
|
||||
|
||||
static int iwl4965_perform_addba(struct iwl4965_priv *priv, u8 tid, u32 length,
|
||||
u32 ba_timeout)
|
||||
{
|
||||
int rc;
|
||||
|
||||
rc = ieee80211_start_BA_session(priv->hw, priv->bssid, tid);
|
||||
if (rc)
|
||||
iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int iwl4965_perform_delba(struct iwl4965_priv *priv, u8 tid)
|
||||
{
|
||||
int rc;
|
||||
|
||||
rc = ieee80211_stop_BA_session(priv->hw, priv->bssid, tid);
|
||||
if (rc)
|
||||
iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void iwl4965_turn_on_agg_for_tid(struct iwl4965_priv *priv,
|
||||
struct iwl4965_lq_mngr *lq,
|
||||
u8 auto_agg, u8 tid)
|
||||
{
|
||||
u32 tid_msk = (1 << tid);
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
/*
|
||||
if ((auto_agg) && (!lq->enable_counter)){
|
||||
lq->agg_ctrl.next_retry = 0;
|
||||
lq->agg_ctrl.tid_retry = 0;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
return;
|
||||
}
|
||||
*/
|
||||
if (!(lq->agg_ctrl.granted_ba & tid_msk) &&
|
||||
(lq->agg_ctrl.requested_ba & tid_msk)) {
|
||||
u8 available_queues;
|
||||
u32 load;
|
||||
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
available_queues = iwl4964_tl_ba_avail(priv);
|
||||
load = iwl4965_tl_get_load(priv, tid);
|
||||
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
if (!available_queues) {
|
||||
if (auto_agg)
|
||||
lq->agg_ctrl.tid_retry |= tid_msk;
|
||||
else {
|
||||
lq->agg_ctrl.requested_ba &= ~tid_msk;
|
||||
lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
|
||||
}
|
||||
} else if ((auto_agg) &&
|
||||
((load <= lq->agg_ctrl.tid_traffic_load_threshold) ||
|
||||
((lq->agg_ctrl.wait_for_agg_status & tid_msk))))
|
||||
lq->agg_ctrl.tid_retry |= tid_msk;
|
||||
else {
|
||||
lq->agg_ctrl.wait_for_agg_status |= tid_msk;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
iwl4965_perform_addba(priv, tid, 0x40,
|
||||
lq->agg_ctrl.ba_timeout);
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
}
|
||||
}
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
}
|
||||
|
||||
static void iwl4965_turn_on_agg(struct iwl4965_priv *priv, u8 tid)
|
||||
{
|
||||
struct iwl4965_lq_mngr *lq;
|
||||
unsigned long flags;
|
||||
|
||||
lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
|
||||
|
||||
if ((tid < TID_MAX_LOAD_COUNT))
|
||||
iwl4965_turn_on_agg_for_tid(priv, lq, lq->agg_ctrl.auto_agg,
|
||||
tid);
|
||||
else if (tid == TID_ALL_SPECIFIED) {
|
||||
if (lq->agg_ctrl.requested_ba) {
|
||||
for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++)
|
||||
iwl4965_turn_on_agg_for_tid(priv, lq,
|
||||
lq->agg_ctrl.auto_agg, tid);
|
||||
} else {
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
lq->agg_ctrl.tid_retry = 0;
|
||||
lq->agg_ctrl.next_retry = 0;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid)
|
||||
{
|
||||
u32 tid_msk;
|
||||
struct iwl4965_lq_mngr *lq;
|
||||
unsigned long flags;
|
||||
|
||||
lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
|
||||
|
||||
if ((tid < TID_MAX_LOAD_COUNT)) {
|
||||
tid_msk = 1 << tid;
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
lq->agg_ctrl.wait_for_agg_status |= tid_msk;
|
||||
lq->agg_ctrl.requested_ba &= ~tid_msk;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
iwl4965_perform_delba(priv, tid);
|
||||
} else if (tid == TID_ALL_SPECIFIED) {
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
|
||||
tid_msk = 1 << tid;
|
||||
lq->agg_ctrl.wait_for_agg_status |= tid_msk;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
iwl4965_perform_delba(priv, tid);
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
}
|
||||
lq->agg_ctrl.requested_ba = 0;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* iwl4965_ba_status - Update driver's link quality mgr with tid's HT status
|
||||
*/
|
||||
static void iwl4965_ba_status(struct iwl4965_priv *priv,
|
||||
u8 tid, enum HT_STATUS status)
|
||||
{
|
||||
struct iwl4965_lq_mngr *lq;
|
||||
u32 tid_msk = (1 << tid);
|
||||
unsigned long flags;
|
||||
|
||||
lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
|
||||
|
||||
if ((tid >= TID_MAX_LOAD_COUNT))
|
||||
goto out;
|
||||
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
switch (status) {
|
||||
case BA_STATUS_ACTIVE:
|
||||
if (!(lq->agg_ctrl.granted_ba & tid_msk))
|
||||
lq->agg_ctrl.granted_ba |= tid_msk;
|
||||
break;
|
||||
default:
|
||||
if ((lq->agg_ctrl.granted_ba & tid_msk))
|
||||
lq->agg_ctrl.granted_ba &= ~tid_msk;
|
||||
break;
|
||||
}
|
||||
|
||||
lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
|
||||
if (status != BA_STATUS_ACTIVE) {
|
||||
if (lq->agg_ctrl.auto_agg) {
|
||||
lq->agg_ctrl.tid_retry |= tid_msk;
|
||||
lq->agg_ctrl.next_retry =
|
||||
jiffies + msecs_to_jiffies(500);
|
||||
} else
|
||||
lq->agg_ctrl.requested_ba &= ~tid_msk;
|
||||
}
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
out:
|
||||
return;
|
||||
}
|
||||
|
||||
static void iwl4965_bg_agg_work(struct work_struct *work)
|
||||
{
|
||||
struct iwl4965_priv *priv = container_of(work, struct iwl4965_priv,
|
||||
agg_work);
|
||||
|
||||
u32 tid;
|
||||
u32 retry_tid;
|
||||
u32 tid_msk;
|
||||
unsigned long flags;
|
||||
struct iwl4965_lq_mngr *lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
|
||||
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
retry_tid = lq->agg_ctrl.tid_retry;
|
||||
lq->agg_ctrl.tid_retry = 0;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
|
||||
if (retry_tid == TID_ALL_SPECIFIED)
|
||||
iwl4965_turn_on_agg(priv, TID_ALL_SPECIFIED);
|
||||
else {
|
||||
for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
|
||||
tid_msk = (1 << tid);
|
||||
if (retry_tid & tid_msk)
|
||||
iwl4965_turn_on_agg(priv, tid);
|
||||
}
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
if (lq->agg_ctrl.tid_retry)
|
||||
lq->agg_ctrl.next_retry = jiffies + msecs_to_jiffies(500);
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
return;
|
||||
}
|
||||
|
||||
/* TODO: move this functionality to rate scaling */
|
||||
void iwl4965_tl_get_stats(struct iwl4965_priv *priv,
|
||||
struct ieee80211_hdr *hdr)
|
||||
{
|
||||
__le16 *qc = ieee80211_get_qos_ctrl(hdr);
|
||||
|
||||
if (qc &&
|
||||
(priv->iw_mode != IEEE80211_IF_TYPE_IBSS)) {
|
||||
u8 tid = 0;
|
||||
tid = (u8) (le16_to_cpu(*qc) & 0xF);
|
||||
if (tid < TID_MAX_LOAD_COUNT)
|
||||
iwl4965_tl_add_packet(priv, tid);
|
||||
}
|
||||
|
||||
if (priv->lq_mngr.agg_ctrl.next_retry &&
|
||||
(time_after(priv->lq_mngr.agg_ctrl.next_retry, jiffies))) {
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&priv->lq_mngr.lock, flags);
|
||||
priv->lq_mngr.agg_ctrl.next_retry = 0;
|
||||
spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
|
||||
schedule_work(&priv->agg_work);
|
||||
}
|
||||
}
|
||||
|
||||
#endif /*CONFIG_IWL4965_HT_AGG */
|
||||
#endif /* CONFIG_IWL4965_HT */
|
||||
|
||||
/**
|
||||
* sign_extend - Sign extend a value using specified bit as sign-bit
|
||||
*
|
||||
|
|
@ -4191,25 +3819,6 @@ static void iwl4965_rx_missed_beacon_notif(struct iwl4965_priv *priv,
|
|||
}
|
||||
|
||||
#ifdef CONFIG_IWL4965_HT
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
|
||||
/**
|
||||
* iwl4965_set_tx_status - Update driver's record of one Tx frame's status
|
||||
*
|
||||
* This will get sent to mac80211.
|
||||
*/
|
||||
static void iwl4965_set_tx_status(struct iwl4965_priv *priv, int txq_id, int idx,
|
||||
u32 status, u32 retry_count, u32 rate)
|
||||
{
|
||||
struct ieee80211_tx_status *tx_status =
|
||||
&(priv->txq[txq_id].txb[idx].status);
|
||||
|
||||
tx_status->flags = status ? IEEE80211_TX_STATUS_ACK : 0;
|
||||
tx_status->retry_count += retry_count;
|
||||
tx_status->control.tx_rate = rate;
|
||||
}
|
||||
|
||||
#endif/* CONFIG_IWL4965_HT_AGG */
|
||||
|
||||
/**
|
||||
* iwl4965_sta_modify_enable_tid_tx - Enable Tx for this TID in station table
|
||||
|
|
@ -4984,11 +4593,6 @@ void iwl4965_hw_setup_deferred_work(struct iwl4965_priv *priv)
|
|||
#ifdef CONFIG_IWL4965_SENSITIVITY
|
||||
INIT_WORK(&priv->sensitivity_work, iwl4965_bg_sensitivity_work);
|
||||
#endif
|
||||
#ifdef CONFIG_IWL4965_HT
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
INIT_WORK(&priv->agg_work, iwl4965_bg_agg_work);
|
||||
#endif /* CONFIG_IWL4965_HT_AGG */
|
||||
#endif /* CONFIG_IWL4965_HT */
|
||||
init_timer(&priv->statistics_periodic);
|
||||
priv->statistics_periodic.data = (unsigned long)priv;
|
||||
priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
|
||||
|
|
|
|||
|
|
@ -782,11 +782,6 @@ extern int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
|
|||
const u8 *addr, u16 tid, u16 *ssn);
|
||||
extern int iwl4965_check_empty_hw_queue(struct iwl4965_priv *priv, int sta_id,
|
||||
u8 tid, int txq_id);
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
extern void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid);
|
||||
extern void iwl4965_tl_get_stats(struct iwl4965_priv *priv,
|
||||
struct ieee80211_hdr *hdr);
|
||||
#endif /* CONFIG_IWL4965_HT_AGG */
|
||||
#endif /*CONFIG_IWL4965_HT */
|
||||
/* Structures, enum, and defines specific to the 4965 */
|
||||
|
||||
|
|
@ -798,18 +793,6 @@ struct iwl4965_kw {
|
|||
size_t size;
|
||||
};
|
||||
|
||||
#define TID_QUEUE_CELL_SPACING 50 /*mS */
|
||||
#define TID_QUEUE_MAX_SIZE 20
|
||||
#define TID_ROUND_VALUE 5 /* mS */
|
||||
#define TID_MAX_LOAD_COUNT 8
|
||||
|
||||
#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
|
||||
#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
|
||||
|
||||
#define TID_ALL_ENABLED 0x7f
|
||||
#define TID_ALL_SPECIFIED 0xff
|
||||
#define TID_AGG_TPT_THREHOLD 0x0
|
||||
|
||||
#define IWL_CHANNEL_WIDTH_20MHZ 0
|
||||
#define IWL_CHANNEL_WIDTH_40MHZ 1
|
||||
|
||||
|
|
@ -834,37 +817,7 @@ struct iwl4965_kw {
|
|||
|
||||
#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
|
||||
|
||||
struct iwl4965_traffic_load {
|
||||
unsigned long time_stamp;
|
||||
u32 packet_count[TID_QUEUE_MAX_SIZE];
|
||||
u8 queue_count;
|
||||
u8 head;
|
||||
u32 total;
|
||||
};
|
||||
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
/**
|
||||
* struct iwl4965_agg_control
|
||||
* @requested_ba: bit map of tids requesting aggregation/block-ack
|
||||
* @granted_ba: bit map of tids granted aggregation/block-ack
|
||||
*/
|
||||
struct iwl4965_agg_control {
|
||||
unsigned long next_retry;
|
||||
u32 wait_for_agg_status;
|
||||
u32 tid_retry;
|
||||
u32 requested_ba;
|
||||
u32 granted_ba;
|
||||
u8 auto_agg;
|
||||
u32 tid_traffic_load_threshold;
|
||||
u32 ba_timeout;
|
||||
struct iwl4965_traffic_load traffic_load[TID_MAX_LOAD_COUNT];
|
||||
};
|
||||
#endif /*CONFIG_IWL4965_HT_AGG */
|
||||
|
||||
struct iwl4965_lq_mngr {
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
struct iwl4965_agg_control agg_ctrl;
|
||||
#endif
|
||||
spinlock_t lock;
|
||||
s32 max_window_size;
|
||||
s32 *expected_tpt;
|
||||
|
|
@ -877,7 +830,6 @@ struct iwl4965_lq_mngr {
|
|||
u8 lq_ready;
|
||||
};
|
||||
|
||||
|
||||
/* Sensitivity and chain noise calibration */
|
||||
#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
|
||||
#define INITIALIZATION_VALUE 0xFFFF
|
||||
|
|
@ -1265,11 +1217,7 @@ struct iwl4965_priv {
|
|||
#endif
|
||||
struct work_struct statistics_work;
|
||||
struct timer_list statistics_periodic;
|
||||
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
struct work_struct agg_work;
|
||||
#endif
|
||||
}; /*iwl4965_priv */
|
||||
}; /*iwl4965_priv */
|
||||
|
||||
static inline int iwl4965_is_associated(struct iwl4965_priv *priv)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -3075,14 +3075,6 @@ static int iwl4965_tx_skb(struct iwl4965_priv *priv,
|
|||
out_cmd->cmd.tx.dram_lsb_ptr = cpu_to_le32(scratch_phys);
|
||||
out_cmd->cmd.tx.dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys);
|
||||
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
#ifdef CONFIG_IWL4965_HT
|
||||
/* TODO: move this functionality to rate scaling */
|
||||
iwl4965_tl_get_stats(priv, hdr);
|
||||
#endif /* CONFIG_IWL4965_HT_AGG */
|
||||
#endif /*CONFIG_IWL4965_HT */
|
||||
|
||||
|
||||
if (!ieee80211_get_morefrag(hdr)) {
|
||||
txq->need_update = 1;
|
||||
if (qc) {
|
||||
|
|
@ -8102,18 +8094,6 @@ static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
|
|||
spin_lock_irqsave(&priv->lock, flags);
|
||||
memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
|
||||
spin_unlock_irqrestore(&priv->lock, flags);
|
||||
#ifdef CONFIG_IWL4965_HT_AGG
|
||||
/* if (priv->lq_mngr.agg_ctrl.granted_ba)
|
||||
iwl4965_turn_off_agg(priv, TID_ALL_SPECIFIED);*/
|
||||
|
||||
memset(&(priv->lq_mngr.agg_ctrl), 0, sizeof(struct iwl4965_agg_control));
|
||||
priv->lq_mngr.agg_ctrl.tid_traffic_load_threshold = 10;
|
||||
priv->lq_mngr.agg_ctrl.ba_timeout = 5000;
|
||||
priv->lq_mngr.agg_ctrl.auto_agg = 1;
|
||||
|
||||
if (priv->lq_mngr.agg_ctrl.auto_agg)
|
||||
priv->lq_mngr.agg_ctrl.requested_ba = TID_ALL_ENABLED;
|
||||
#endif /*CONFIG_IWL4965_HT_AGG */
|
||||
#endif /* CONFIG_IWL4965_HT */
|
||||
|
||||
#ifdef CONFIG_IWL4965_QOS
|
||||
|
|
|
|||
Loading…
Reference in New Issue