queue_work(priv->workqueue, &priv->txpower_work);
}
-/**
- * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack
- *
- * Go through block-ack's bitmap of ACK'd frames, update driver's record of
- * ACK vs. not. This gets sent to mac80211, then to rate scaling algo.
- */
-static int iwl4965_tx_status_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_ht_agg *agg,
- struct iwl4965_compressed_ba_resp*
- ba_resp)
-
-{
- int i, sh, ack;
- u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
- u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
- u64 bitmap;
- int successes = 0;
- struct ieee80211_tx_info *info;
-
- if (unlikely(!agg->wait_for_ba)) {
- IWL_ERROR("Received BA when not expected\n");
- return -EINVAL;
- }
-
- /* Mark that the expected block-ack response arrived */
- agg->wait_for_ba = 0;
- IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
-
- /* Calculate shift to align block-ack bits with our Tx window bits */
- sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl>>4);
- if (sh < 0) /* tbw something is wrong with indices */
- sh += 0x100;
-
- /* don't use 64-bit values for now */
- bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
-
- if (agg->frame_count > (64 - sh)) {
- IWL_DEBUG_TX_REPLY("more frames than bitmap size");
- return -1;
- }
-
- /* check for success or failure according to the
- * transmitted bitmap and block-ack bitmap */
- bitmap &= agg->bitmap;
-
- /* For each frame attempted in aggregation,
- * update driver's record of tx frame's status. */
- for (i = 0; i < agg->frame_count ; i++) {
- ack = bitmap & (1 << i);
- successes += !!ack;
- IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
- ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff,
- agg->start_idx + i);
- }
-
- info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb[0]);
- memset(&info->status, 0, sizeof(info->status));
- info->flags = IEEE80211_TX_STAT_ACK;
- info->flags |= IEEE80211_TX_STAT_AMPDU;
- info->status.ampdu_ack_map = successes;
- info->status.ampdu_ack_len = agg->frame_count;
- iwl_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
-
- IWL_DEBUG_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
-
- return 0;
-}
-
/**
* iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
*/
return 0;
}
-
-/**
- * iwl4965_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA
- *
- * Handles block-acknowledge notification from device, which reports success
- * of frames sent via aggregation.
- */
-static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl4965_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
- int index;
- struct iwl_tx_queue *txq = NULL;
- struct iwl_ht_agg *agg;
- DECLARE_MAC_BUF(mac);
-
- /* "flow" corresponds to Tx queue */
- u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
-
- /* "ssn" is start of block-ack Tx window, corresponds to index
- * (in Tx queue's circular buffer) of first TFD/frame in window */
- u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
-
- if (scd_flow >= priv->hw_params.max_txq_num) {
- IWL_ERROR("BUG_ON scd_flow is bigger than number of queues");
- return;
- }
-
- txq = &priv->txq[scd_flow];
- agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg;
-
- /* Find index just before block-ack window */
- index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
-
- /* TODO: Need to get this copy more safely - now good for debug */
-
- IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d]Received from %s, "
- "sta_id = %d\n",
- agg->wait_for_ba,
- print_mac(mac, (u8*) &ba_resp->sta_addr_lo32),
- ba_resp->sta_id);
- IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
- "%d, scd_ssn = %d\n",
- ba_resp->tid,
- ba_resp->seq_ctl,
- (unsigned long long)le64_to_cpu(ba_resp->bitmap),
- ba_resp->scd_flow,
- ba_resp->scd_ssn);
- IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx \n",
- agg->start_idx,
- (unsigned long long)agg->bitmap);
-
- /* Update driver's record of ACK vs. not for each frame in window */
- iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
-
- /* Release all TFDs before the SSN, i.e. all TFDs in front of
- * block-ack window (we assume that they've been successfully
- * transmitted ... if not, it's too late anyway). */
- if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
- /* calculate mac80211 ampdu sw queue to wake */
- int ampdu_q =
- scd_flow - priv->hw_params.first_ampdu_q + priv->hw->queues;
- int freed = iwl_tx_queue_reclaim(priv, scd_flow, index);
- priv->stations[ba_resp->sta_id].
- tid[ba_resp->tid].tfds_in_queue -= freed;
- if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
- priv->mac80211_registered &&
- agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
- ieee80211_wake_queue(priv->hw, ampdu_q);
-
- iwl_txq_check_empty(priv, ba_resp->sta_id,
- ba_resp->tid, scd_flow);
- }
-}
-
/**
* iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue
*/
priv->rx_handlers[REPLY_RX] = iwl_rx_reply_rx;
/* Tx response */
priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
- /* block ack */
- priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
}
static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
*
* Reports Block-Acknowledge from recipient station
*/
-struct iwl4965_compressed_ba_resp {
+struct iwl_compressed_ba_resp {
__le32 sta_addr_lo32;
__le16 sta_addr_hi16;
__le16 reserved;
struct iwl4965_sleep_notification sleep_notif;
struct iwl4965_spectrum_resp spectrum;
struct iwl_notif_statistics stats;
- struct iwl4965_compressed_ba_resp compressed_ba;
+ struct iwl_compressed_ba_resp compressed_ba;
struct iwl4965_missed_beacon_notif missed_beacon;
struct iwl5000_calibration calib;
__le32 status;
struct iwl_rx_mem_buffer *rxb);
extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
+void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb);
static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
{
}
EXPORT_SYMBOL(iwl_txq_check_empty);
+/**
+ * iwl_tx_status_reply_compressed_ba - Update tx status from block-ack
+ *
+ * Go through block-ack's bitmap of ACK'd frames, update driver's record of
+ * ACK vs. not. This gets sent to mac80211, then to rate scaling algo.
+ */
+static int iwl_tx_status_reply_compressed_ba(struct iwl_priv *priv,
+ struct iwl_ht_agg *agg,
+ struct iwl_compressed_ba_resp *ba_resp)
+
+{
+ int i, sh, ack;
+ u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+ u64 bitmap;
+ int successes = 0;
+ struct ieee80211_tx_info *info;
+
+ if (unlikely(!agg->wait_for_ba)) {
+ IWL_ERROR("Received BA when not expected\n");
+ return -EINVAL;
+ }
+
+ /* Mark that the expected block-ack response arrived */
+ agg->wait_for_ba = 0;
+ IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
+
+ /* Calculate shift to align block-ack bits with our Tx window bits */
+ sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl>>4);
+ if (sh < 0) /* tbw something is wrong with indices */
+ sh += 0x100;
+
+ /* don't use 64-bit values for now */
+ bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
+
+ if (agg->frame_count > (64 - sh)) {
+ IWL_DEBUG_TX_REPLY("more frames than bitmap size");
+ return -1;
+ }
+
+ /* check for success or failure according to the
+ * transmitted bitmap and block-ack bitmap */
+ bitmap &= agg->bitmap;
+
+ /* For each frame attempted in aggregation,
+ * update driver's record of tx frame's status. */
+ for (i = 0; i < agg->frame_count ; i++) {
+ ack = bitmap & (1 << i);
+ successes += !!ack;
+ IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
+ ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff,
+ agg->start_idx + i);
+ }
+
+ info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb[0]);
+ memset(&info->status, 0, sizeof(info->status));
+ info->flags = IEEE80211_TX_STAT_ACK;
+ info->flags |= IEEE80211_TX_STAT_AMPDU;
+ info->status.ampdu_ack_map = successes;
+ info->status.ampdu_ack_len = agg->frame_count;
+ iwl_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
+
+ IWL_DEBUG_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
+
+ return 0;
+}
+
+/**
+ * iwl_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA
+ *
+ * Handles block-acknowledge notification from device, which reports success
+ * of frames sent via aggregation.
+ */
+void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb)
+{
+ struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
+ int index;
+ struct iwl_tx_queue *txq = NULL;
+ struct iwl_ht_agg *agg;
+ DECLARE_MAC_BUF(mac);
+
+ /* "flow" corresponds to Tx queue */
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+
+ /* "ssn" is start of block-ack Tx window, corresponds to index
+ * (in Tx queue's circular buffer) of first TFD/frame in window */
+ u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
+
+ if (scd_flow >= priv->hw_params.max_txq_num) {
+ IWL_ERROR("BUG_ON scd_flow is bigger than number of queues");
+ return;
+ }
+
+ txq = &priv->txq[scd_flow];
+ agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg;
+
+ /* Find index just before block-ack window */
+ index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
+
+ /* TODO: Need to get this copy more safely - now good for debug */
+
+ IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d]Received from %s, "
+ "sta_id = %d\n",
+ agg->wait_for_ba,
+ print_mac(mac, (u8 *) &ba_resp->sta_addr_lo32),
+ ba_resp->sta_id);
+ IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
+ "%d, scd_ssn = %d\n",
+ ba_resp->tid,
+ ba_resp->seq_ctl,
+ (unsigned long long)le64_to_cpu(ba_resp->bitmap),
+ ba_resp->scd_flow,
+ ba_resp->scd_ssn);
+ IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx \n",
+ agg->start_idx,
+ (unsigned long long)agg->bitmap);
+
+ /* Update driver's record of ACK vs. not for each frame in window */
+ iwl_tx_status_reply_compressed_ba(priv, agg, ba_resp);
+
+ /* Release all TFDs before the SSN, i.e. all TFDs in front of
+ * block-ack window (we assume that they've been successfully
+ * transmitted ... if not, it's too late anyway). */
+ if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
+ /* calculate mac80211 ampdu sw queue to wake */
+ int ampdu_q =
+ scd_flow - priv->hw_params.first_ampdu_q + priv->hw->queues;
+ int freed = iwl_tx_queue_reclaim(priv, scd_flow, index);
+ priv->stations[ba_resp->sta_id].
+ tid[ba_resp->tid].tfds_in_queue -= freed;
+ if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
+ priv->mac80211_registered &&
+ agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
+ ieee80211_wake_queue(priv->hw, ampdu_q);
+
+ iwl_txq_check_empty(priv, ba_resp->sta_id,
+ ba_resp->tid, scd_flow);
+ }
+}
+EXPORT_SYMBOL(iwl_rx_reply_compressed_ba);
+
#ifdef CONFIG_IWLWIF_DEBUG
#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
* This function chains into the hardware specific files for them to setup
* any hardware specific handlers as well.
*/
-static void iwl4965_setup_rx_handlers(struct iwl_priv *priv)
+static void iwl_setup_rx_handlers(struct iwl_priv *priv)
{
priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
/* Rx handlers */
priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
+ /* block ack */
+ priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
/* Set up hardware specific Rx handlers */
priv->cfg->ops->lib->rx_handler_setup(priv);
}
iwl_setup_deferred_work(priv);
- iwl4965_setup_rx_handlers(priv);
+ iwl_setup_rx_handlers(priv);
/********************
* 9. Conclude
projects / karo-tx-linux.git / commitdiff