iwlwifi: A-MPDU Rx flow enabled

This patch enables the A-MPDU Rx flow. it contains several
adjustments to new mac80211 A-MPDU Rx flow.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 35 insertions, 40 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 0f58acabb973..89e2c44bfcca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -3968,9 +3968,6 @@ static void iwl4965_rx_reply_rx(struct iwl4965_priv *priv,
                 .antenna = 0,
                 .rate = iwl4965_hw_get_rate(rx_start->rate_n_flags),
                 .flag = 0,
-#ifdef CONFIG_IWL4965_HT_AGG
-                .ordered = 0
-#endif /* CONFIG_IWL4965_HT_AGG */
         };
         u8 network_packet;
 
@@ -4165,7 +4162,7 @@ static void iwl4965_rx_reply_rx(struct iwl4965_priv *priv,
                 break;
 
         case IEEE80211_FTYPE_CTL:
-#ifdef CONFIG_IWL4965_HT_AGG
+#ifdef CONFIG_IWL4965_HT
                 switch (fc & IEEE80211_FCTL_STYPE) {
                 case IEEE80211_STYPE_BACK_REQ:
                         IWL_DEBUG_HT("IEEE80211_STYPE_BACK_REQ arrived\n");
@@ -4176,7 +4173,6 @@ static void iwl4965_rx_reply_rx(struct iwl4965_priv *priv,
                         break;
                 }
 #endif
-
                 break;
 
         case IEEE80211_FTYPE_DATA: {
@@ -4763,8 +4759,6 @@ void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
         return;
 }
 
-#ifdef CONFIG_IWL4965_HT_AGG
-
 static void iwl4965_sta_modify_add_ba_tid(struct iwl4965_priv *priv,
                                           int sta_id, int tid, u16 ssn)
 {
@@ -4796,6 +4790,36 @@ static void iwl4965_sta_modify_del_ba_tid(struct iwl4965_priv *priv,
         iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
 }
 
+int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
+                             enum ieee80211_ampdu_mlme_action action,
+                             const u8 *addr, u16 tid, u16 ssn)
+{
+        struct iwl4965_priv *priv = hw->priv;
+        int sta_id;
+        DECLARE_MAC_BUF(mac);
+
+        IWL_DEBUG_HT("A-MPDU action on da=%s tid=%d ",
+                        print_mac(mac, addr), tid);
+        sta_id = iwl4965_hw_find_station(priv, addr);
+        switch (action) {
+        case IEEE80211_AMPDU_RX_START:
+                IWL_DEBUG_HT("start Rx\n");
+                iwl4965_sta_modify_add_ba_tid(priv, sta_id, tid, ssn);
+                break;
+        case IEEE80211_AMPDU_RX_STOP:
+                IWL_DEBUG_HT("stop Rx\n");
+                iwl4965_sta_modify_del_ba_tid(priv, sta_id, tid);
+                break;
+        default:
+                IWL_DEBUG_HT("unknown\n");
+                return -EINVAL;
+                break;
+        }
+        return 0;
+}
+
+#ifdef CONFIG_IWL4965_HT_AGG
+
 static const u16 default_tid_to_tx_fifo[] = {
         IWL_TX_FIFO_AC1,
         IWL_TX_FIFO_AC0,
@@ -4925,33 +4949,6 @@ int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da, u16 tid,
         return 0;
 }
 
-int iwl4965_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
-                            u16 tid, u16 start_seq_num)
-{
-        struct iwl4965_priv *priv = hw->priv;
-        int sta_id;
-        DECLARE_MAC_BUF(mac);
-
-        IWL_WARNING("iwl-AGG iwl4965_mac_ht_rx_agg_start on da=%s"
-                    " tid=%d\n", print_mac(mac, da), tid);
-        sta_id = iwl4965_hw_find_station(priv, da);
-        iwl4965_sta_modify_add_ba_tid(priv, sta_id, tid, start_seq_num);
-        return 0;
-}
-
-int iwl4965_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
-                           u16 tid, int generator)
-{
-        struct iwl4965_priv *priv = hw->priv;
-        int sta_id;
-        DECLARE_MAC_BUF(mac);
-
-        IWL_WARNING("iwl-AGG iwl4965_mac_ht_rx_agg_stop on da=%s tid=%d\n",
-                    print_mac(mac, da), tid);
-        sta_id = iwl4965_hw_find_station(priv, da);
-        iwl4965_sta_modify_del_ba_tid(priv, sta_id, tid);
-        return 0;
-}
 
 #endif /* CONFIG_IWL4965_HT_AGG */
 #endif /* CONFIG_IWL4965_HT */
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h
index aad7f70bab76..c38648216dc4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.h
@@ -780,13 +780,12 @@ extern void iwl4965_set_rxon_ht(struct iwl4965_priv *priv,
                                 struct iwl_ht_info *ht_info);
 extern void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
                                 struct ieee80211_ht_info *sta_ht_inf);
+extern int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
+                                    enum ieee80211_ampdu_mlme_action action,
+                                    const u8 *addr, u16 tid, u16 ssn);
 #ifdef CONFIG_IWL4965_HT_AGG
 extern int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da,
                                    u16 tid, u16 *start_seq_num);
-extern int iwl4965_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
-                                   u16 tid, u16 start_seq_num);
-extern int iwl4965_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
-                                  u16 tid, int generator);
 extern int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da,
                                   u16 tid, int generator);
 extern void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid);
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 52eb37f4ac78..92bb7e13a1f0 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -8955,11 +8955,10 @@ static struct ieee80211_ops iwl4965_hw_ops = {
         .erp_ie_changed = iwl4965_mac_erp_ie_changed,
 #ifdef CONFIG_IWL4965_HT
         .conf_ht = iwl4965_mac_conf_ht,
+        .ampdu_action = iwl4965_mac_ampdu_action,
 #ifdef CONFIG_IWL4965_HT_AGG
         .ht_tx_agg_start = iwl4965_mac_ht_tx_agg_start,
         .ht_tx_agg_stop = iwl4965_mac_ht_tx_agg_stop,
-        .ht_rx_agg_start = iwl4965_mac_ht_rx_agg_start,
-        .ht_rx_agg_stop = iwl4965_mac_ht_rx_agg_stop,
 #endif  /* CONFIG_IWL4965_HT_AGG */
 #endif  /* CONFIG_IWL4965_HT */
         .hw_scan = iwl4965_mac_hw_scan