diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-tx.c | 108 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl4965-base.c | 93 |
6 files changed, 116 insertions, 98 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 98f3df0210d..1d95e8c6527 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -3132,7 +3132,7 @@ static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv, /* calculate mac80211 ampdu sw queue to wake */ int ampdu_q = scd_flow - IWL_BACK_QUEUE_FIRST_ID + priv->hw->queues; - int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index); + 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 && @@ -3673,7 +3673,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn " "%d index %d\n", scd_ssn , index); - freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); + freed = iwl_tx_queue_reclaim(priv, txq_id, index); priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; if (iwl_queue_space(&txq->q) > txq->q.low_mark && @@ -3705,7 +3705,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); #ifdef CONFIG_IWL4965_HT if (index != -1) { - int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); + int freed = iwl_tx_queue_reclaim(priv, txq_id, index); if (tid != MAX_TID_COUNT) priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; if (iwl_queue_space(&txq->q) > txq->q.low_mark && diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index cfabcb00f33..dc9f3b68379 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -1159,7 +1159,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn " "%d index %d\n", scd_ssn , index); - freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); + freed = iwl_tx_queue_reclaim(priv, txq_id, index); priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; if (iwl_queue_space(&txq->q) > txq->q.low_mark && @@ -1191,7 +1191,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); #ifdef CONFIG_IWL4965_HT if (index != -1) { - int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); + int freed = iwl_tx_queue_reclaim(priv, txq_id, index); if (tid != MAX_TID_COUNT) priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; if (iwl_queue_space(&txq->q) > txq->q.low_mark && diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 9449b61c8c0..8264b4e6585 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -205,6 +205,8 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwl_rx_queue_restock(struct iwl_priv *priv); int iwl_rx_queue_space(const struct iwl_rx_queue *q); void iwl_rx_allocate(struct iwl_priv *priv); +void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); +int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); /* Handlers */ void iwl_rx_missed_beacon_notif(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 93433130470..8c258d6a61c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -714,7 +714,6 @@ extern int iwl4965_get_temperature(const struct iwl_priv *priv); extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid); extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel); -extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); extern int iwl_queue_space(const struct iwl_queue *q); static inline int iwl_queue_used(const struct iwl_queue *q, int i) { diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 885a4c11ac4..b2b2ed29602 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -1060,6 +1060,114 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) return ret ? ret : idx; } +int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) +{ + struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct iwl_queue *q = &txq->q; + struct iwl_tx_info *tx_info; + int nfreed = 0; + + if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { + IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " + "is out of range [0-%d] %d %d.\n", txq_id, + index, q->n_bd, q->write_ptr, q->read_ptr); + return 0; + } + + for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != 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]); + tx_info->skb[0] = NULL; + iwl_hw_txq_free_tfd(priv, txq); + + nfreed++; + } + return nfreed; +} +EXPORT_SYMBOL(iwl_tx_queue_reclaim); + + +/** + * iwl_hcmd_queue_reclaim - Reclaim TX command queue entries already Tx'd + * + * When FW advances 'R' index, all entries between old and new 'R' index + * need to be reclaimed. As result, some free space forms. If there is + * enough free space (> low mark), wake the stack that feeds us. + */ +static void iwl_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) +{ + struct iwl_tx_queue *txq = &priv->txq[txq_id]; + struct iwl_queue *q = &txq->q; + int nfreed = 0; + + if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { + IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " + "is out of range [0-%d] %d %d.\n", txq_id, + index, q->n_bd, q->write_ptr, q->read_ptr); + return; + } + + for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { + + if (nfreed > 1) { + IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, + q->write_ptr, q->read_ptr); + queue_work(priv->workqueue, &priv->restart); + } + nfreed++; + } +} + +/** + * iwl_tx_cmd_complete - Pull unused buffers off the queue and reclaim them + * @rxb: Rx buffer to reclaim + * + * If an Rx buffer has an async callback associated with it the callback + * will be executed. The attached skb (if present) will only be freed + * if the callback returns 1 + */ +void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) +{ + struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + u16 sequence = le16_to_cpu(pkt->hdr.sequence); + int txq_id = SEQ_TO_QUEUE(sequence); + int index = SEQ_TO_INDEX(sequence); + int huge = sequence & SEQ_HUGE_FRAME; + int cmd_index; + struct iwl_cmd *cmd; + + /* If a Tx command is being handled and it isn't in the actual + * command queue then there a command routing bug has been introduced + * in the queue management code. */ + if (txq_id != IWL_CMD_QUEUE_NUM) + IWL_ERROR("Error wrong command queue %d command id 0x%X\n", + txq_id, pkt->hdr.cmd); + BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); + + cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); + cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; + + /* Input error checking is done when commands are added to queue. */ + if (cmd->meta.flags & CMD_WANT_SKB) { + cmd->meta.source->u.skb = rxb->skb; + rxb->skb = NULL; + } else if (cmd->meta.u.callback && + !cmd->meta.u.callback(priv, cmd, rxb->skb)) + rxb->skb = NULL; + + iwl_hcmd_queue_reclaim(priv, txq_id, index); + + if (!(cmd->meta.flags & CMD_ASYNC)) { + clear_bit(STATUS_HCMD_ACTIVE, &priv->status); + wake_up_interruptible(&priv->wait_command_queue); + } +} +EXPORT_SYMBOL(iwl_tx_cmd_complete); + + #ifdef CONFIG_IWLWIF_DEBUG #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 10d773413aa..4322cd604f4 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -1535,51 +1535,6 @@ static int iwl4965_get_measurement(struct iwl_priv *priv, } #endif -static void iwl4965_txstatus_to_ieee(struct iwl_priv *priv, - struct iwl_tx_info *tx_sta) -{ - ieee80211_tx_status_irqsafe(priv->hw, tx_sta->skb[0]); - tx_sta->skb[0] = NULL; -} - -/** - * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd - * - * When FW advances 'R' index, all entries between old and new 'R' index - * need to be reclaimed. As result, some free space forms. If there is - * enough free space (> low mark), wake the stack that feeds us. - */ -int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) -{ - struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct iwl_queue *q = &txq->q; - int nfreed = 0; - - if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { - IWL_ERROR("Read index for DMA queue txq id (%d), index %d, " - "is out of range [0-%d] %d %d.\n", txq_id, - index, q->n_bd, q->write_ptr, q->read_ptr); - return 0; - } - - for (index = iwl_queue_inc_wrap(index, q->n_bd); - q->read_ptr != index; - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { - if (txq_id != IWL_CMD_QUEUE_NUM) { - iwl4965_txstatus_to_ieee(priv, - &(txq->txb[txq->q.read_ptr])); - iwl_hw_txq_free_tfd(priv, txq); - } else if (nfreed > 1) { - IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index, - q->write_ptr, q->read_ptr); - queue_work(priv->workqueue, &priv->restart); - } - nfreed++; - } - - return nfreed; -} - /****************************************************************************** * * Generic RX handler implementations @@ -1961,52 +1916,6 @@ static void iwl4965_setup_rx_handlers(struct iwl_priv *priv) priv->cfg->ops->lib->rx_handler_setup(priv); } -/** - * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them - * @rxb: Rx buffer to reclaim - * - * If an Rx buffer has an async callback associated with it the callback - * will be executed. The attached skb (if present) will only be freed - * if the callback returns 1 - */ -static void iwl4965_tx_cmd_complete(struct iwl_priv *priv, - struct iwl_rx_mem_buffer *rxb) -{ - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; - u16 sequence = le16_to_cpu(pkt->hdr.sequence); - int txq_id = SEQ_TO_QUEUE(sequence); - int index = SEQ_TO_INDEX(sequence); - int huge = sequence & SEQ_HUGE_FRAME; - int cmd_index; - struct iwl_cmd *cmd; - - /* If a Tx command is being handled and it isn't in the actual - * command queue then there a command routing bug has been introduced - * in the queue management code. */ - if (txq_id != IWL_CMD_QUEUE_NUM) - IWL_ERROR("Error wrong command queue %d command id 0x%X\n", - txq_id, pkt->hdr.cmd); - BUG_ON(txq_id != IWL_CMD_QUEUE_NUM); - - cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); - cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; - - /* Input error checking is done when commands are added to queue. */ - if (cmd->meta.flags & CMD_WANT_SKB) { - cmd->meta.source->u.skb = rxb->skb; - rxb->skb = NULL; - } else if (cmd->meta.u.callback && - !cmd->meta.u.callback(priv, cmd, rxb->skb)) - rxb->skb = NULL; - - iwl4965_tx_queue_reclaim(priv, txq_id, index); - - if (!(cmd->meta.flags & CMD_ASYNC)) { - clear_bit(STATUS_HCMD_ACTIVE, &priv->status); - wake_up_interruptible(&priv->wait_command_queue); - } -} - /* * this should be called while priv->lock is locked */ @@ -2095,7 +2004,7 @@ void iwl_rx_handle(struct iwl_priv *priv) * fire off the (possibly) blocking iwl_send_cmd() * as we reclaim the driver command queue */ if (rxb && rxb->skb) - iwl4965_tx_cmd_complete(priv, rxb); + iwl_tx_cmd_complete(priv, rxb); else IWL_WARNING("Claim null rxb?\n"); } |