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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

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This commit is contained in:
David S. Miller
2009-11-24 15:01:29 -08:00
parent 35700212b4 18b6c9a221
commit 4ba3eb034f
125 changed files with 3168 additions and 1941 deletions
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61
drivers/net/wireless/iwlwifi/iwl-tx.c
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@@ -710,6 +710,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = info->control.sta;
struct iwl_station_priv *sta_priv = NULL;
struct iwl_tx_queue *txq;
struct iwl_queue *q;
struct iwl_device_cmd *out_cmd;
@@ -772,6 +774,24 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
IWL_DEBUG_TX(priv, "station Id %d\n", sta_id);
if (sta)
sta_priv = (void *)sta->drv_priv;
if (sta_priv && sta_id != priv->hw_params.bcast_sta_id &&
sta_priv->asleep) {
WARN_ON(!(info->flags & IEEE80211_TX_CTL_PSPOLL_RESPONSE));
/*
* This sends an asynchronous command to the device,
* but we can rely on it being processed before the
* next frame is processed -- and the next frame to
* this station is the one that will consume this
* counter.
* For now set the counter to just 1 since we do not
* support uAPSD yet.
*/
iwl_sta_modify_sleep_tx_count(priv, sta_id, 1);
}
txq_id = skb_get_queue_mapping(skb);
if (ieee80211_is_data_qos(fc)) {
qc = ieee80211_get_qos_ctl(hdr);
@@ -931,6 +951,17 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
ret = iwl_txq_update_write_ptr(priv, txq);
spin_unlock_irqrestore(&priv->lock, flags);
/*
* At this point the frame is "transmitted" successfully
* and we will get a TX status notification eventually,
* regardless of the value of ret. "ret" only indicates
* whether or not we should update the write pointer.
*/
/* avoid atomic ops if it isn't an associated client */
if (sta_priv && sta_priv->client)
atomic_inc(&sta_priv->pending_frames);
if (ret)
return ret;
@@ -992,7 +1023,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
}
if (iwl_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
IWL_ERR(priv, "No space for Tx\n");
IWL_ERR(priv, "No space in command queue\n");
if (iwl_within_ct_kill_margin(priv))
iwl_tt_enter_ct_kill(priv);
else {
@@ -1075,6 +1106,24 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
return ret ? ret : idx;
}
static void iwl_tx_status(struct iwl_priv *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_sta *sta;
struct iwl_station_priv *sta_priv;
sta = ieee80211_find_sta(priv->vif, hdr->addr1);
if (sta) {
sta_priv = (void *)sta->drv_priv;
/* avoid atomic ops if this isn't a client */
if (sta_priv->client &&
atomic_dec_return(&sta_priv->pending_frames) == 0)
ieee80211_sta_block_awake(priv->hw, sta, false);
}
ieee80211_tx_status_irqsafe(priv->hw, skb);
}
int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
{
struct iwl_tx_queue *txq = &priv->txq[txq_id];
@@ -1094,7 +1143,7 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
tx_info = &txq->txb[txq->q.read_ptr];
ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb[0]);
iwl_tx_status(priv, tx_info->skb[0]);
tx_info->skb[0] = NULL;
if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl)
@@ -1264,7 +1313,7 @@ int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn)
if (tid_data->tfds_in_queue == 0) {
IWL_DEBUG_HT(priv, "HW queue is empty\n");
tid_data->agg.state = IWL_AGG_ON;
ieee80211_start_tx_ba_cb_irqsafe(priv->hw, ra, tid);
ieee80211_start_tx_ba_cb_irqsafe(priv->vif, ra, tid);
} else {
IWL_DEBUG_HT(priv, "HW queue is NOT empty: %d packets in HW queue\n",
tid_data->tfds_in_queue);
@@ -1329,7 +1378,7 @@ int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid)
if (ret)
return ret;
ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, ra, tid);
ieee80211_stop_tx_ba_cb_irqsafe(priv->vif, ra, tid);
return 0;
}
@@ -1353,7 +1402,7 @@ int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id)
priv->cfg->ops->lib->txq_agg_disable(priv, txq_id,
ssn, tx_fifo);
tid_data->agg.state = IWL_AGG_OFF;
ieee80211_stop_tx_ba_cb_irqsafe(priv->hw, addr, tid);
ieee80211_stop_tx_ba_cb_irqsafe(priv->vif, addr, tid);
}
break;
case IWL_EMPTYING_HW_QUEUE_ADDBA:
@@ -1361,7 +1410,7 @@ int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id)
if (tid_data->tfds_in_queue == 0) {
IWL_DEBUG_HT(priv, "HW queue empty: continue ADDBA flow\n");
tid_data->agg.state = IWL_AGG_ON;
ieee80211_start_tx_ba_cb_irqsafe(priv->hw, addr, tid);
ieee80211_start_tx_ba_cb_irqsafe(priv->vif, addr, tid);
}
break;
}