- patches.suse/slab-handle-memoryless-nodes-v2a.patch: Refresh.
[linux-flexiantxendom0-3.2.10.git] / drivers / net / wireless / iwlwifi / iwl-sta.c
index c6633fe..cde09a8 100644 (file)
@@ -99,32 +99,25 @@ static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
 
 static void iwl_add_sta_callback(struct iwl_priv *priv,
                                 struct iwl_device_cmd *cmd,
-                                struct sk_buff *skb)
+                                struct iwl_rx_packet *pkt)
 {
-       struct iwl_rx_packet *res = NULL;
        struct iwl_addsta_cmd *addsta =
                (struct iwl_addsta_cmd *)cmd->cmd.payload;
        u8 sta_id = addsta->sta.sta_id;
 
-       if (!skb) {
-               IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
-               return;
-       }
-
-       res = (struct iwl_rx_packet *)skb->data;
-       if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+       if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
                IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
-                         res->hdr.flags);
+                         pkt->hdr.flags);
                return;
        }
 
-       switch (res->u.add_sta.status) {
+       switch (pkt->u.add_sta.status) {
        case ADD_STA_SUCCESS_MSK:
                iwl_sta_ucode_activate(priv, sta_id);
                 /* fall through */
        default:
                IWL_DEBUG_HC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
-                            res->u.add_sta.status);
+                            pkt->u.add_sta.status);
                break;
        }
 }
@@ -132,7 +125,7 @@ static void iwl_add_sta_callback(struct iwl_priv *priv,
 int iwl_send_add_sta(struct iwl_priv *priv,
                     struct iwl_addsta_cmd *sta, u8 flags)
 {
-       struct iwl_rx_packet *res = NULL;
+       struct iwl_rx_packet *pkt = NULL;
        int ret = 0;
        u8 data[sizeof(*sta)];
        struct iwl_host_cmd cmd = {
@@ -152,15 +145,15 @@ int iwl_send_add_sta(struct iwl_priv *priv,
        if (ret || (flags & CMD_ASYNC))
                return ret;
 
-       res = (struct iwl_rx_packet *)cmd.reply_skb->data;
-       if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+       pkt = (struct iwl_rx_packet *)cmd.reply_page;
+       if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
                IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
-                         res->hdr.flags);
+                         pkt->hdr.flags);
                ret = -EIO;
        }
 
        if (ret == 0) {
-               switch (res->u.add_sta.status) {
+               switch (pkt->u.add_sta.status) {
                case ADD_STA_SUCCESS_MSK:
                        iwl_sta_ucode_activate(priv, sta->sta.sta_id);
                        IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
@@ -171,9 +164,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
                        break;
                }
        }
-
-       priv->alloc_rxb_skb--;
-       dev_kfree_skb_any(cmd.reply_skb);
+       iwl_free_pages(priv, cmd.reply_page);
 
        return ret;
 }
@@ -189,6 +180,11 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
                goto done;
 
        mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
+       IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n",
+                       (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
+                       "static" :
+                       (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
+                       "dynamic" : "disabled");
 
        sta_flags = priv->stations[index].sta.station_flags;
 
@@ -324,26 +320,19 @@ static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
 
 static void iwl_remove_sta_callback(struct iwl_priv *priv,
                                    struct iwl_device_cmd *cmd,
-                                   struct sk_buff *skb)
+                                   struct iwl_rx_packet *pkt)
 {
-       struct iwl_rx_packet *res = NULL;
        struct iwl_rem_sta_cmd *rm_sta =
-                (struct iwl_rem_sta_cmd *)cmd->cmd.payload;
+                       (struct iwl_rem_sta_cmd *)cmd->cmd.payload;
        const char *addr = rm_sta->addr;
 
-       if (!skb) {
-               IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n");
-               return;
-       }
-
-       res = (struct iwl_rx_packet *)skb->data;
-       if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+       if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
                IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
-               res->hdr.flags);
+               pkt->hdr.flags);
                return;
        }
 
-       switch (res->u.rem_sta.status) {
+       switch (pkt->u.rem_sta.status) {
        case REM_STA_SUCCESS_MSK:
                iwl_sta_ucode_deactivate(priv, addr);
                break;
@@ -356,7 +345,7 @@ static void iwl_remove_sta_callback(struct iwl_priv *priv,
 static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
                                   u8 flags)
 {
-       struct iwl_rx_packet *res = NULL;
+       struct iwl_rx_packet *pkt;
        int ret;
 
        struct iwl_rem_sta_cmd rm_sta_cmd;
@@ -381,15 +370,15 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
        if (ret || (flags & CMD_ASYNC))
                return ret;
 
-       res = (struct iwl_rx_packet *)cmd.reply_skb->data;
-       if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+       pkt = (struct iwl_rx_packet *)cmd.reply_page;
+       if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
                IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
-                         res->hdr.flags);
+                         pkt->hdr.flags);
                ret = -EIO;
        }
 
        if (!ret) {
-               switch (res->u.rem_sta.status) {
+               switch (pkt->u.rem_sta.status) {
                case REM_STA_SUCCESS_MSK:
                        iwl_sta_ucode_deactivate(priv, addr);
                        IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
@@ -400,9 +389,7 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
                        break;
                }
        }
-
-       priv->alloc_rxb_skb--;
-       dev_kfree_skb_any(cmd.reply_skb);
+       iwl_free_pages(priv, cmd.reply_page);
 
        return ret;
 }
@@ -1026,7 +1013,7 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
         */
        if (priv->current_ht_config.is_ht) {
                rcu_read_lock();
-               sta = ieee80211_find_sta(priv->hw, addr);
+               sta = ieee80211_find_sta(priv->vif, addr);
                if (sta) {
                        memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config));
                        cur_ht_config = &ht_config;
@@ -1044,6 +1031,68 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap)
 EXPORT_SYMBOL(iwl_rxon_add_station);
 
 /**
+ * iwl_sta_init_bcast_lq - Initialize a bcast station's hardware rate table
+ *
+ * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
+ *       calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
+ *       which requires station table entry to exist).
+ */
+static void iwl_sta_init_bcast_lq(struct iwl_priv *priv)
+{
+       int i, r;
+       struct iwl_link_quality_cmd link_cmd = {
+               .reserved1 = 0,
+       };
+       u32 rate_flags;
+
+       /* Set up the rate scaling to start at selected rate, fall back
+        * all the way down to 1M in IEEE order, and then spin on 1M */
+       if (priv->band == IEEE80211_BAND_5GHZ)
+               r = IWL_RATE_6M_INDEX;
+       else
+               r = IWL_RATE_1M_INDEX;
+
+       for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+               rate_flags = 0;
+               if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
+                       rate_flags |= RATE_MCS_CCK_MSK;
+
+               rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
+                               RATE_MCS_ANT_POS;
+
+               link_cmd.rs_table[i].rate_n_flags =
+                       iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
+               r = iwl_get_prev_ieee_rate(r);
+       }
+
+       link_cmd.general_params.single_stream_ant_msk =
+                               first_antenna(priv->hw_params.valid_tx_ant);
+       link_cmd.general_params.dual_stream_ant_msk = 3;
+       link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
+       link_cmd.agg_params.agg_time_limit =
+               cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+
+       /* Update the rate scaling for control frame Tx to AP */
+       link_cmd.sta_id = priv->hw_params.bcast_sta_id;
+
+       iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD,
+                              sizeof(link_cmd), &link_cmd, NULL);
+}
+
+
+/**
+ * iwl_add_bcast_station - add broadcast station into station table.
+ */
+void iwl_add_bcast_station(struct iwl_priv *priv)
+{
+       iwl_add_station(priv, iwl_bcast_addr, false, CMD_SYNC, NULL);
+
+       /* Set up default rate scaling table in device's station table */
+       iwl_sta_init_bcast_lq(priv);
+}
+EXPORT_SYMBOL(iwl_add_bcast_station);
+
+/**
  * iwl_get_sta_id - Find station's index within station table
  *
  * If new IBSS station, create new entry in station table
@@ -1163,7 +1212,7 @@ int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid)
 }
 EXPORT_SYMBOL(iwl_sta_rx_agg_stop);
 
-static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
+void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
 {
        unsigned long flags;
 
@@ -1171,27 +1220,26 @@ static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
        priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
        priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
        priv->stations[sta_id].sta.sta.modify_mask = 0;
+       priv->stations[sta_id].sta.sleep_tx_count = 0;
        priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
        spin_unlock_irqrestore(&priv->sta_lock, flags);
 
        iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
 }
+EXPORT_SYMBOL(iwl_sta_modify_ps_wake);
 
-void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr)
+void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt)
 {
-       /* FIXME: need locking over ps_status ??? */
-       u8 sta_id = iwl_find_station(priv, addr);
+       unsigned long flags;
 
-       if (sta_id != IWL_INVALID_STATION) {
-               u8 sta_awake = priv->stations[sta_id].
-                               ps_status == STA_PS_STATUS_WAKE;
+       spin_lock_irqsave(&priv->sta_lock, flags);
+       priv->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
+       priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
+       priv->stations[sta_id].sta.sta.modify_mask =
+                                       STA_MODIFY_SLEEP_TX_COUNT_MSK;
+       priv->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
+       priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+       spin_unlock_irqrestore(&priv->sta_lock, flags);
 
-               if (sta_awake && ps_bit)
-                       priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP;
-               else if (!sta_awake && !ps_bit) {
-                       iwl_sta_modify_ps_wake(priv, sta_id);
-                       priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE;
-               }
-       }
+       iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
 }
-