iwlwifi: dynamic allocate tx queue structure

Instead of always allocate the max number of tx queue structure,
use dynamic allocation based on the number of queues in device
configuration. With these changes, device does not have to allocate more
memory than the h/w can support.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 27 insertions, 15 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index a9d1aa3ad57b..ab5b9d8d66be 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -749,18 +749,16 @@ int iwl5000_alive_notify(struct iwl_priv *priv)
 
 int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 {
-	if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
-	    (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
-		IWL_ERR(priv,
-			"invalid queues_num, should be between %d and %d\n",
-			IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES);
-		return -EINVAL;
-	}
+	if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
+	    priv->cfg->mod_params->num_of_queues <= IWL50_NUM_QUEUES)
+		priv->cfg->num_of_queues =
+			priv->cfg->mod_params->num_of_queues;
 
-	priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
+	priv->hw_params.max_txq_num = priv->cfg->num_of_queues;
 	priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
 	priv->hw_params.scd_bc_tbls_size =
-			IWL50_NUM_QUEUES * sizeof(struct iwl5000_scd_bc_tbl);
+			priv->cfg->num_of_queues *
+			sizeof(struct iwl5000_scd_bc_tbl);
 	priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
 	priv->hw_params.max_stations = IWL5000_STATION_COUNT;
 	priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
@@ -912,11 +910,13 @@ int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
 	u16 ra_tid;
 
 	if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
-	    (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) {
+	    (IWL50_FIRST_AMPDU_QUEUE + priv->cfg->num_of_ampdu_queues
+	     <= txq_id)) {
 		IWL_WARN(priv,
 			"queue number out of range: %d, must be %d to %d\n",
 			txq_id, IWL50_FIRST_AMPDU_QUEUE,
-			IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1);
+			IWL50_FIRST_AMPDU_QUEUE +
+			priv->cfg->num_of_ampdu_queues - 1);
 		return -EINVAL;
 	}
 
@@ -970,11 +970,13 @@ int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 				   u16 ssn_idx, u8 tx_fifo)
 {
 	if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
-	    (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) {
+	    (IWL50_FIRST_AMPDU_QUEUE + priv->cfg->num_of_ampdu_queues
+	     <= txq_id)) {
 		IWL_ERR(priv,
 			"queue number out of range: %d, must be %d to %d\n",
 			txq_id, IWL50_FIRST_AMPDU_QUEUE,
-			IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1);
+			IWL50_FIRST_AMPDU_QUEUE +
+			priv->cfg->num_of_ampdu_queues - 1);
 		return -EINVAL;
 	}
 
@@ -1584,8 +1586,6 @@ static struct iwl_ops iwl5150_ops = {
 };
 
 struct iwl_mod_params iwl50_mod_params = {
-	.num_of_queues = IWL50_NUM_QUEUES,
-	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.amsdu_size_8K = 1,
 	.restart_fw = 1,
 	/* the rest are 0 by default */
@@ -1602,6 +1602,8 @@ struct iwl_cfg iwl5300_agn_cfg = {
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
+	.num_of_queues = IWL50_NUM_QUEUES,
+	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_ABC,
 	.valid_rx_ant = ANT_ABC,
@@ -1621,6 +1623,8 @@ struct iwl_cfg iwl5100_bg_cfg = {
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
+	.num_of_queues = IWL50_NUM_QUEUES,
+	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_B,
 	.valid_rx_ant = ANT_AB,
@@ -1640,6 +1644,8 @@ struct iwl_cfg iwl5100_abg_cfg = {
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
+	.num_of_queues = IWL50_NUM_QUEUES,
+	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_B,
 	.valid_rx_ant = ANT_AB,
@@ -1659,6 +1665,8 @@ struct iwl_cfg iwl5100_agn_cfg = {
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
+	.num_of_queues = IWL50_NUM_QUEUES,
+	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_B,
 	.valid_rx_ant = ANT_AB,
@@ -1678,6 +1686,8 @@ struct iwl_cfg iwl5350_agn_cfg = {
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
+	.num_of_queues = IWL50_NUM_QUEUES,
+	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_ABC,
 	.valid_rx_ant = ANT_ABC,
@@ -1697,6 +1707,8 @@ struct iwl_cfg iwl5150_agn_cfg = {
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
+	.num_of_queues = IWL50_NUM_QUEUES,
+	.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_A,
 	.valid_rx_ant = ANT_AB,