diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-sta.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-sta.c | 160 |
1 files changed, 106 insertions, 54 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index c6633fe..cd6a690 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -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"); @@ -172,8 +165,8 @@ int iwl_send_add_sta(struct iwl_priv *priv, } } - priv->alloc_rxb_skb--; - dev_kfree_skb_any(cmd.reply_skb); + priv->alloc_rxb_page--; + free_pages(cmd.reply_page, priv->hw_params.rx_page_order); return ret; } @@ -189,6 +182,11 @@ 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 +322,19 @@ 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 +347,7 @@ 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 +372,15 @@ 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"); @@ -401,8 +392,8 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, } } - priv->alloc_rxb_skb--; - dev_kfree_skb_any(cmd.reply_skb); + priv->alloc_rxb_page--; + free_pages(cmd.reply_page, priv->hw_params.rx_page_order); return ret; } @@ -1026,7 +1017,7 @@ 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 +1035,68 @@ 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 +1216,7 @@ 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 +1224,26 @@ 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); } - |