3 files changed, 16 insertions, 2 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 23e5c42e7d7e..7c4deee4c527 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2694,8 +2694,18 @@ static void rs_fill_link_cmd(struct iwl_priv *priv,
 
         lq_cmd->agg_params.agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
         lq_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
+
         lq_cmd->agg_params.agg_time_limit =
                 cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+        /*
+         * overwrite if needed, pass aggregation time limit
+         * to uCode in uSec
+         */
+        if (priv && priv->cfg->agg_time_limit &&
+            priv->cfg->agg_time_limit >= LINK_QUAL_AGG_TIME_LIMIT_MIN &&
+            priv->cfg->agg_time_limit <= LINK_QUAL_AGG_TIME_LIMIT_MAX)
+                lq_cmd->agg_params.agg_time_limit =
+                        cpu_to_le16(priv->cfg->agg_time_limit);
 }
 
 static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index c6a0470b2f50..14a7a8c0711a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2110,8 +2110,10 @@ struct iwl_link_qual_general_params {
  */
 struct iwl_link_qual_agg_params {
 
-        /* Maximum number of uSec in aggregation.
-         * Driver should set this to 4000 (4 milliseconds). */
+        /*
+         *Maximum number of uSec in aggregation.
+         * default set to 4000 (4 milliseconds) if not configured in .cfg
+         */
         __le16 agg_time_limit;
 
         /*
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 702d62bf4ee4..f5586b5e0496 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -280,6 +280,7 @@ struct iwl_mod_params {
  * @scan_antennas: available antenna for scan operation
  * @need_dc_calib: need to perform init dc calibration
  * @bt_statistics: use BT version of statistics notification
+ * @agg_time_limit: maximum number of uSec in aggregation
  *
  * We enable the driver to be backward compatible wrt API version. The
  * driver specifies which APIs it supports (with @ucode_api_max being the
@@ -350,6 +351,7 @@ struct iwl_cfg {
         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
         const bool need_dc_calib;
         const bool bt_statistics;
+        u16 agg_time_limit;
 };
 
 /***************************