iwlegacy: merge iwl-4965-sta.c into 4965-mac.c

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>

3 files changed, 677 insertions, 713 deletions

diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 4a8ad8df828d..142d39f94498 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -86,6 +86,683 @@ MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("iwl4965");
 
+static struct il_link_quality_cmd *
+il4965_sta_alloc_lq(struct il_priv *il, u8 sta_id)
+{
+	int i, r;
+	struct il_link_quality_cmd *link_cmd;
+	u32 rate_flags = 0;
+	__le32 rate_n_flags;
+
+	link_cmd = kzalloc(sizeof(struct il_link_quality_cmd), GFP_KERNEL);
+	if (!link_cmd) {
+		IL_ERR("Unable to allocate memory for LQ cmd.\n");
+		return NULL;
+	}
+	/* 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 (il->band == IEEE80211_BAND_5GHZ)
+		r = RATE_6M_IDX;
+	else
+		r = RATE_1M_IDX;
+
+	if (r >= IL_FIRST_CCK_RATE && r <= IL_LAST_CCK_RATE)
+		rate_flags |= RATE_MCS_CCK_MSK;
+
+	rate_flags |= il4965_first_antenna(il->hw_params.valid_tx_ant) <<
+				RATE_MCS_ANT_POS;
+	rate_n_flags = il4965_hw_set_rate_n_flags(il_rates[r].plcp,
+						   rate_flags);
+	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
+		link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
+
+	link_cmd->general_params.single_stream_ant_msk =
+				il4965_first_antenna(il->hw_params.valid_tx_ant);
+
+	link_cmd->general_params.dual_stream_ant_msk =
+		il->hw_params.valid_tx_ant &
+		~il4965_first_antenna(il->hw_params.valid_tx_ant);
+	if (!link_cmd->general_params.dual_stream_ant_msk) {
+		link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
+	} else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) {
+		link_cmd->general_params.dual_stream_ant_msk =
+			il->hw_params.valid_tx_ant;
+	}
+
+	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);
+
+	link_cmd->sta_id = sta_id;
+
+	return link_cmd;
+}
+
+/*
+ * il4965_add_bssid_station - Add the special IBSS BSSID station
+ *
+ * Function sleeps.
+ */
+int
+il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx,
+			     const u8 *addr, u8 *sta_id_r)
+{
+	int ret;
+	u8 sta_id;
+	struct il_link_quality_cmd *link_cmd;
+	unsigned long flags;
+
+	if (sta_id_r)
+		*sta_id_r = IL_INVALID_STATION;
+
+	ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
+	if (ret) {
+		IL_ERR("Unable to add station %pM\n", addr);
+		return ret;
+	}
+
+	if (sta_id_r)
+		*sta_id_r = sta_id;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].used |= IL_STA_LOCAL;
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	/* Set up default rate scaling table in device's station table */
+	link_cmd = il4965_sta_alloc_lq(il, sta_id);
+	if (!link_cmd) {
+		IL_ERR(
+			"Unable to initialize rate scaling for station %pM.\n",
+			addr);
+		return -ENOMEM;
+	}
+
+	ret = il_send_lq_cmd(il, ctx, link_cmd, CMD_SYNC, true);
+	if (ret)
+		IL_ERR("Link quality command failed (%d)\n", ret);
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].lq = link_cmd;
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return 0;
+}
+
+static int il4965_static_wepkey_cmd(struct il_priv *il,
+				      struct il_rxon_context *ctx,
+				      bool send_if_empty)
+{
+	int i, not_empty = 0;
+	u8 buff[sizeof(struct il_wep_cmd) +
+		sizeof(struct il_wep_key) * WEP_KEYS_MAX];
+	struct il_wep_cmd *wep_cmd = (struct il_wep_cmd *)buff;
+	size_t cmd_size  = sizeof(struct il_wep_cmd);
+	struct il_host_cmd cmd = {
+		.id = ctx->wep_key_cmd,
+		.data = wep_cmd,
+		.flags = CMD_SYNC,
+	};
+
+	might_sleep();
+
+	memset(wep_cmd, 0, cmd_size +
+			(sizeof(struct il_wep_key) * WEP_KEYS_MAX));
+
+	for (i = 0; i < WEP_KEYS_MAX ; i++) {
+		wep_cmd->key[i].key_idx = i;
+		if (ctx->wep_keys[i].key_size) {
+			wep_cmd->key[i].key_offset = i;
+			not_empty = 1;
+		} else {
+			wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
+		}
+
+		wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
+		memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
+				ctx->wep_keys[i].key_size);
+	}
+
+	wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
+	wep_cmd->num_keys = WEP_KEYS_MAX;
+
+	cmd_size += sizeof(struct il_wep_key) * WEP_KEYS_MAX;
+
+	cmd.len = cmd_size;
+
+	if (not_empty || send_if_empty)
+		return il_send_cmd(il, &cmd);
+	else
+		return 0;
+}
+
+int il4965_restore_default_wep_keys(struct il_priv *il,
+				 struct il_rxon_context *ctx)
+{
+	lockdep_assert_held(&il->mutex);
+
+	return il4965_static_wepkey_cmd(il, ctx, false);
+}
+
+int il4965_remove_default_wep_key(struct il_priv *il,
+			       struct il_rxon_context *ctx,
+			       struct ieee80211_key_conf *keyconf)
+{
+	int ret;
+
+	lockdep_assert_held(&il->mutex);
+
+	D_WEP("Removing default WEP key: idx=%d\n",
+		      keyconf->keyidx);
+
+	memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
+	if (il_is_rfkill(il)) {
+		D_WEP(
+		"Not sending REPLY_WEPKEY command due to RFKILL.\n");
+		/* but keys in device are clear anyway so return success */
+		return 0;
+	}
+	ret = il4965_static_wepkey_cmd(il, ctx, 1);
+	D_WEP("Remove default WEP key: idx=%d ret=%d\n",
+		      keyconf->keyidx, ret);
+
+	return ret;
+}
+
+int il4965_set_default_wep_key(struct il_priv *il,
+			    struct il_rxon_context *ctx,
+			    struct ieee80211_key_conf *keyconf)
+{
+	int ret;
+
+	lockdep_assert_held(&il->mutex);
+
+	if (keyconf->keylen != WEP_KEY_LEN_128 &&
+	    keyconf->keylen != WEP_KEY_LEN_64) {
+		D_WEP("Bad WEP key length %d\n", keyconf->keylen);
+		return -EINVAL;
+	}
+
+	keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
+	keyconf->hw_key_idx = HW_KEY_DEFAULT;
+	il->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
+
+	ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
+	memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
+							keyconf->keylen);
+
+	ret = il4965_static_wepkey_cmd(il, ctx, false);
+	D_WEP("Set default WEP key: len=%d idx=%d ret=%d\n",
+		keyconf->keylen, keyconf->keyidx, ret);
+
+	return ret;
+}
+
+static int il4965_set_wep_dynamic_key_info(struct il_priv *il,
+					struct il_rxon_context *ctx,
+					struct ieee80211_key_conf *keyconf,
+					u8 sta_id)
+{
+	unsigned long flags;
+	__le16 key_flags = 0;
+	struct il_addsta_cmd sta_cmd;
+
+	lockdep_assert_held(&il->mutex);
+
+	keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
+
+	key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
+	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+	key_flags &= ~STA_KEY_FLG_INVALID;
+
+	if (keyconf->keylen == WEP_KEY_LEN_128)
+		key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
+
+	if (sta_id == ctx->bcast_sta_id)
+		key_flags |= STA_KEY_MULTICAST_MSK;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+
+	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+	il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+	il->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
+
+	memcpy(il->stations[sta_id].keyinfo.key,
+				keyconf->key, keyconf->keylen);
+
+	memcpy(&il->stations[sta_id].sta.key.key[3],
+				keyconf->key, keyconf->keylen);
+
+	if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
+			== STA_KEY_FLG_NO_ENC)
+		il->stations[sta_id].sta.key.key_offset =
+				 il_get_free_ucode_key_idx(il);
+	/* else, we are overriding an existing key => no need to allocated room
+	 * in uCode. */
+
+	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+		"no space for a new key");
+
+	il->stations[sta_id].sta.key.key_flags = key_flags;
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+	memcpy(&sta_cmd, &il->stations[sta_id].sta,
+			sizeof(struct il_addsta_cmd));
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+static int il4965_set_ccmp_dynamic_key_info(struct il_priv *il,
+					 struct il_rxon_context *ctx,
+					 struct ieee80211_key_conf *keyconf,
+					 u8 sta_id)
+{
+	unsigned long flags;
+	__le16 key_flags = 0;
+	struct il_addsta_cmd sta_cmd;
+
+	lockdep_assert_held(&il->mutex);
+
+	key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
+	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+	key_flags &= ~STA_KEY_FLG_INVALID;
+
+	if (sta_id == ctx->bcast_sta_id)
+		key_flags |= STA_KEY_MULTICAST_MSK;
+
+	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+	il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+
+	memcpy(il->stations[sta_id].keyinfo.key, keyconf->key,
+	       keyconf->keylen);
+
+	memcpy(il->stations[sta_id].sta.key.key, keyconf->key,
+	       keyconf->keylen);
+
+	if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
+			== STA_KEY_FLG_NO_ENC)
+		il->stations[sta_id].sta.key.key_offset =
+				 il_get_free_ucode_key_idx(il);
+	/* else, we are overriding an existing key => no need to allocated room
+	 * in uCode. */
+
+	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+		"no space for a new key");
+
+	il->stations[sta_id].sta.key.key_flags = key_flags;
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+	memcpy(&sta_cmd, &il->stations[sta_id].sta,
+			 sizeof(struct il_addsta_cmd));
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+static int il4965_set_tkip_dynamic_key_info(struct il_priv *il,
+					 struct il_rxon_context *ctx,
+					 struct ieee80211_key_conf *keyconf,
+					 u8 sta_id)
+{
+	unsigned long flags;
+	int ret = 0;
+	__le16 key_flags = 0;
+
+	key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
+	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+	key_flags &= ~STA_KEY_FLG_INVALID;
+
+	if (sta_id == ctx->bcast_sta_id)
+		key_flags |= STA_KEY_MULTICAST_MSK;
+
+	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+
+	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+	il->stations[sta_id].keyinfo.keylen = 16;
+
+	if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
+			== STA_KEY_FLG_NO_ENC)
+		il->stations[sta_id].sta.key.key_offset =
+				 il_get_free_ucode_key_idx(il);
+	/* else, we are overriding an existing key => no need to allocated room
+	 * in uCode. */
+
+	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+		"no space for a new key");
+
+	il->stations[sta_id].sta.key.key_flags = key_flags;
+
+
+	/* This copy is acutally not needed: we get the key with each TX */
+	memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, 16);
+
+	memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16);
+
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return ret;
+}
+
+void il4965_update_tkip_key(struct il_priv *il,
+			 struct il_rxon_context *ctx,
+			 struct ieee80211_key_conf *keyconf,
+			 struct ieee80211_sta *sta, u32 iv32, u16 *phase1key)
+{
+	u8 sta_id;
+	unsigned long flags;
+	int i;
+
+	if (il_scan_cancel(il)) {
+		/* cancel scan failed, just live w/ bad key and rely
+		   briefly on SW decryption */
+		return;
+	}
+
+	sta_id = il_sta_id_or_broadcast(il, ctx, sta);
+	if (sta_id == IL_INVALID_STATION)
+		return;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+
+	il->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
+
+	for (i = 0; i < 5; i++)
+		il->stations[sta_id].sta.key.tkip_rx_ttak[i] =
+			cpu_to_le16(phase1key[i]);
+
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+	il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
+
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+}
+
+int il4965_remove_dynamic_key(struct il_priv *il,
+			   struct il_rxon_context *ctx,
+			   struct ieee80211_key_conf *keyconf,
+			   u8 sta_id)
+{
+	unsigned long flags;
+	u16 key_flags;
+	u8 keyidx;
+	struct il_addsta_cmd sta_cmd;
+
+	lockdep_assert_held(&il->mutex);
+
+	ctx->key_mapping_keys--;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	key_flags = le16_to_cpu(il->stations[sta_id].sta.key.key_flags);
+	keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
+
+	D_WEP("Remove dynamic key: idx=%d sta=%d\n",
+		      keyconf->keyidx, sta_id);
+
+	if (keyconf->keyidx != keyidx) {
+		/* We need to remove a key with idx different that the one
+		 * in the uCode. This means that the key we need to remove has
+		 * been replaced by another one with different idx.
+		 * Don't do anything and return ok
+		 */
+		spin_unlock_irqrestore(&il->sta_lock, flags);
+		return 0;
+	}
+
+	if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
+		IL_WARN("Removing wrong key %d 0x%x\n",
+			    keyconf->keyidx, key_flags);
+		spin_unlock_irqrestore(&il->sta_lock, flags);
+		return 0;
+	}
+
+	if (!test_and_clear_bit(il->stations[sta_id].sta.key.key_offset,
+		&il->ucode_key_table))
+		IL_ERR("idx %d not used in uCode key table.\n",
+			il->stations[sta_id].sta.key.key_offset);
+	memset(&il->stations[sta_id].keyinfo, 0,
+					sizeof(struct il_hw_key));
+	memset(&il->stations[sta_id].sta.key, 0,
+					sizeof(struct il4965_keyinfo));
+	il->stations[sta_id].sta.key.key_flags =
+			STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
+	il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+	if (il_is_rfkill(il)) {
+		D_WEP(
+		 "Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
+		spin_unlock_irqrestore(&il->sta_lock, flags);
+		return 0;
+	}
+	memcpy(&sta_cmd, &il->stations[sta_id].sta,
+			sizeof(struct il_addsta_cmd));
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+int il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
+			struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+	int ret;
+
+	lockdep_assert_held(&il->mutex);
+
+	ctx->key_mapping_keys++;
+	keyconf->hw_key_idx = HW_KEY_DYNAMIC;
+
+	switch (keyconf->cipher) {
+	case WLAN_CIPHER_SUITE_CCMP:
+		ret = il4965_set_ccmp_dynamic_key_info(il, ctx,
+							keyconf, sta_id);
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		ret = il4965_set_tkip_dynamic_key_info(il, ctx,
+							keyconf, sta_id);
+		break;
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		ret = il4965_set_wep_dynamic_key_info(il, ctx,
+							keyconf, sta_id);
+		break;
+	default:
+		IL_ERR(
+			"Unknown alg: %s cipher = %x\n", __func__,
+			keyconf->cipher);
+		ret = -EINVAL;
+	}
+
+	D_WEP(
+		"Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
+		      keyconf->cipher, keyconf->keylen, keyconf->keyidx,
+		      sta_id, ret);
+
+	return ret;
+}
+
+/**
+ * il4965_alloc_bcast_station - add broadcast station into driver's station table.
+ *
+ * This adds the broadcast station into the driver's station table
+ * and marks it driver active, so that it will be restored to the
+ * device at the next best time.
+ */
+int il4965_alloc_bcast_station(struct il_priv *il,
+			       struct il_rxon_context *ctx)
+{
+	struct il_link_quality_cmd *link_cmd;
+	unsigned long flags;
+	u8 sta_id;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	sta_id = il_prep_station(il, ctx, il_bcast_addr,
+								false, NULL);
+	if (sta_id == IL_INVALID_STATION) {
+		IL_ERR("Unable to prepare broadcast station\n");
+		spin_unlock_irqrestore(&il->sta_lock, flags);
+
+		return -EINVAL;
+	}
+
+	il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
+	il->stations[sta_id].used |= IL_STA_BCAST;
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	link_cmd = il4965_sta_alloc_lq(il, sta_id);
+	if (!link_cmd) {
+		IL_ERR(
+			"Unable to initialize rate scaling for bcast station.\n");
+		return -ENOMEM;
+	}
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].lq = link_cmd;
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return 0;
+}
+
+/**
+ * il4965_update_bcast_station - update broadcast station's LQ command
+ *
+ * Only used by iwl4965. Placed here to have all bcast station management
+ * code together.
+ */
+static int il4965_update_bcast_station(struct il_priv *il,
+				    struct il_rxon_context *ctx)
+{
+	unsigned long flags;
+	struct il_link_quality_cmd *link_cmd;
+	u8 sta_id = ctx->bcast_sta_id;
+
+	link_cmd = il4965_sta_alloc_lq(il, sta_id);
+	if (!link_cmd) {
+		IL_ERR(
+		"Unable to initialize rate scaling for bcast station.\n");
+		return -ENOMEM;
+	}
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	if (il->stations[sta_id].lq)
+		kfree(il->stations[sta_id].lq);
+	else
+		D_INFO(
+		"Bcast station rate scaling has not been initialized yet.\n");
+	il->stations[sta_id].lq = link_cmd;
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return 0;
+}
+
+int il4965_update_bcast_stations(struct il_priv *il)
+{
+	return il4965_update_bcast_station(il, &il->ctx);
+}
+
+/**
+ * il4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
+ */
+int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid)
+{
+	unsigned long flags;
+	struct il_addsta_cmd sta_cmd;
+
+	lockdep_assert_held(&il->mutex);
+
+	/* Remove "disable" flag, to enable Tx for this TID */
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
+	il->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+	memcpy(&sta_cmd, &il->stations[sta_id].sta,
+					sizeof(struct il_addsta_cmd));
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta,
+			 int tid, u16 ssn)
+{
+	unsigned long flags;
+	int sta_id;
+	struct il_addsta_cmd sta_cmd;
+
+	lockdep_assert_held(&il->mutex);
+
+	sta_id = il_sta_id(sta);
+	if (sta_id == IL_INVALID_STATION)
+		return -ENXIO;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].sta.station_flags_msk = 0;
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
+	il->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
+	il->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+	memcpy(&sta_cmd, &il->stations[sta_id].sta,
+					sizeof(struct il_addsta_cmd));
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta,
+			int tid)
+{
+	unsigned long flags;
+	int sta_id;
+	struct il_addsta_cmd sta_cmd;
+
+	lockdep_assert_held(&il->mutex);
+
+	sta_id = il_sta_id(sta);
+	if (sta_id == IL_INVALID_STATION) {
+		IL_ERR("Invalid station for AGG tid %d\n", tid);
+		return -ENXIO;
+	}
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].sta.station_flags_msk = 0;
+	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
+	il->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+	memcpy(&sta_cmd, &il->stations[sta_id].sta,
+				sizeof(struct il_addsta_cmd));
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+void
+il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&il->sta_lock, flags);
+	il->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
+	il->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
+	il->stations[sta_id].sta.sta.modify_mask =
+					STA_MODIFY_SLEEP_TX_COUNT_MSK;
+	il->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
+	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+	il_send_add_sta(il,
+				&il->stations[sta_id].sta, CMD_ASYNC);
+	spin_unlock_irqrestore(&il->sta_lock, flags);
+
+}
+
 void il4965_update_chain_flags(struct il_priv *il)
 {
 	if (il->cfg->ops->hcmd->set_rxon_chain) {
diff --git a/drivers/net/wireless/iwlegacy/Makefile b/drivers/net/wireless/iwlegacy/Makefile
index 43daa07ac898..0643fda0656c 100644
--- a/drivers/net/wireless/iwlegacy/Makefile
+++ b/drivers/net/wireless/iwlegacy/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_IWL4965)	+= iwl4965.o
 iwl4965-objs		:= 4965.o 4965-mac.o iwl-4965-rs.o
 iwl4965-objs		+= iwl-4965-tx.o
 iwl4965-objs		+= iwl-4965-lib.o iwl-4965-rx.o iwl-4965-calib.o
-iwl4965-objs		+= iwl-4965-sta.o
 iwl4965-$(CONFIG_IWLEGACY_DEBUGFS) += iwl-4965-debugfs.o
 
 # 3945
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c b/drivers/net/wireless/iwlegacy/iwl-4965-sta.c
deleted file mode 100644
index 337bf0c1c4c2..000000000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c
+++ /dev/null
@@ -1,712 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <net/mac80211.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-4965.h"
-
-static struct il_link_quality_cmd *
-il4965_sta_alloc_lq(struct il_priv *il, u8 sta_id)
-{
-	int i, r;
-	struct il_link_quality_cmd *link_cmd;
-	u32 rate_flags = 0;
-	__le32 rate_n_flags;
-
-	link_cmd = kzalloc(sizeof(struct il_link_quality_cmd), GFP_KERNEL);
-	if (!link_cmd) {
-		IL_ERR("Unable to allocate memory for LQ cmd.\n");
-		return NULL;
-	}
-	/* 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 (il->band == IEEE80211_BAND_5GHZ)
-		r = RATE_6M_IDX;
-	else
-		r = RATE_1M_IDX;
-
-	if (r >= IL_FIRST_CCK_RATE && r <= IL_LAST_CCK_RATE)
-		rate_flags |= RATE_MCS_CCK_MSK;
-
-	rate_flags |= il4965_first_antenna(il->hw_params.valid_tx_ant) <<
-				RATE_MCS_ANT_POS;
-	rate_n_flags = il4965_hw_set_rate_n_flags(il_rates[r].plcp,
-						   rate_flags);
-	for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
-		link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
-
-	link_cmd->general_params.single_stream_ant_msk =
-				il4965_first_antenna(il->hw_params.valid_tx_ant);
-
-	link_cmd->general_params.dual_stream_ant_msk =
-		il->hw_params.valid_tx_ant &
-		~il4965_first_antenna(il->hw_params.valid_tx_ant);
-	if (!link_cmd->general_params.dual_stream_ant_msk) {
-		link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
-	} else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) {
-		link_cmd->general_params.dual_stream_ant_msk =
-			il->hw_params.valid_tx_ant;
-	}
-
-	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);
-
-	link_cmd->sta_id = sta_id;
-
-	return link_cmd;
-}
-
-/*
- * il4965_add_bssid_station - Add the special IBSS BSSID station
- *
- * Function sleeps.
- */
-int
-il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx,
-			     const u8 *addr, u8 *sta_id_r)
-{
-	int ret;
-	u8 sta_id;
-	struct il_link_quality_cmd *link_cmd;
-	unsigned long flags;
-
-	if (sta_id_r)
-		*sta_id_r = IL_INVALID_STATION;
-
-	ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
-	if (ret) {
-		IL_ERR("Unable to add station %pM\n", addr);
-		return ret;
-	}
-
-	if (sta_id_r)
-		*sta_id_r = sta_id;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].used |= IL_STA_LOCAL;
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	/* Set up default rate scaling table in device's station table */
-	link_cmd = il4965_sta_alloc_lq(il, sta_id);
-	if (!link_cmd) {
-		IL_ERR(
-			"Unable to initialize rate scaling for station %pM.\n",
-			addr);
-		return -ENOMEM;
-	}
-
-	ret = il_send_lq_cmd(il, ctx, link_cmd, CMD_SYNC, true);
-	if (ret)
-		IL_ERR("Link quality command failed (%d)\n", ret);
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].lq = link_cmd;
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return 0;
-}
-
-static int il4965_static_wepkey_cmd(struct il_priv *il,
-				      struct il_rxon_context *ctx,
-				      bool send_if_empty)
-{
-	int i, not_empty = 0;
-	u8 buff[sizeof(struct il_wep_cmd) +
-		sizeof(struct il_wep_key) * WEP_KEYS_MAX];
-	struct il_wep_cmd *wep_cmd = (struct il_wep_cmd *)buff;
-	size_t cmd_size  = sizeof(struct il_wep_cmd);
-	struct il_host_cmd cmd = {
-		.id = ctx->wep_key_cmd,
-		.data = wep_cmd,
-		.flags = CMD_SYNC,
-	};
-
-	might_sleep();
-
-	memset(wep_cmd, 0, cmd_size +
-			(sizeof(struct il_wep_key) * WEP_KEYS_MAX));
-
-	for (i = 0; i < WEP_KEYS_MAX ; i++) {
-		wep_cmd->key[i].key_idx = i;
-		if (ctx->wep_keys[i].key_size) {
-			wep_cmd->key[i].key_offset = i;
-			not_empty = 1;
-		} else {
-			wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
-		}
-
-		wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
-		memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
-				ctx->wep_keys[i].key_size);
-	}
-
-	wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
-	wep_cmd->num_keys = WEP_KEYS_MAX;
-
-	cmd_size += sizeof(struct il_wep_key) * WEP_KEYS_MAX;
-
-	cmd.len = cmd_size;
-
-	if (not_empty || send_if_empty)
-		return il_send_cmd(il, &cmd);
-	else
-		return 0;
-}
-
-int il4965_restore_default_wep_keys(struct il_priv *il,
-				 struct il_rxon_context *ctx)
-{
-	lockdep_assert_held(&il->mutex);
-
-	return il4965_static_wepkey_cmd(il, ctx, false);
-}
-
-int il4965_remove_default_wep_key(struct il_priv *il,
-			       struct il_rxon_context *ctx,
-			       struct ieee80211_key_conf *keyconf)
-{
-	int ret;
-
-	lockdep_assert_held(&il->mutex);
-
-	D_WEP("Removing default WEP key: idx=%d\n",
-		      keyconf->keyidx);
-
-	memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
-	if (il_is_rfkill(il)) {
-		D_WEP(
-		"Not sending REPLY_WEPKEY command due to RFKILL.\n");
-		/* but keys in device are clear anyway so return success */
-		return 0;
-	}
-	ret = il4965_static_wepkey_cmd(il, ctx, 1);
-	D_WEP("Remove default WEP key: idx=%d ret=%d\n",
-		      keyconf->keyidx, ret);
-
-	return ret;
-}
-
-int il4965_set_default_wep_key(struct il_priv *il,
-			    struct il_rxon_context *ctx,
-			    struct ieee80211_key_conf *keyconf)
-{
-	int ret;
-
-	lockdep_assert_held(&il->mutex);
-
-	if (keyconf->keylen != WEP_KEY_LEN_128 &&
-	    keyconf->keylen != WEP_KEY_LEN_64) {
-		D_WEP("Bad WEP key length %d\n", keyconf->keylen);
-		return -EINVAL;
-	}
-
-	keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
-	keyconf->hw_key_idx = HW_KEY_DEFAULT;
-	il->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
-
-	ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
-	memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
-							keyconf->keylen);
-
-	ret = il4965_static_wepkey_cmd(il, ctx, false);
-	D_WEP("Set default WEP key: len=%d idx=%d ret=%d\n",
-		keyconf->keylen, keyconf->keyidx, ret);
-
-	return ret;
-}
-
-static int il4965_set_wep_dynamic_key_info(struct il_priv *il,
-					struct il_rxon_context *ctx,
-					struct ieee80211_key_conf *keyconf,
-					u8 sta_id)
-{
-	unsigned long flags;
-	__le16 key_flags = 0;
-	struct il_addsta_cmd sta_cmd;
-
-	lockdep_assert_held(&il->mutex);
-
-	keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
-
-	key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
-	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
-	key_flags &= ~STA_KEY_FLG_INVALID;
-
-	if (keyconf->keylen == WEP_KEY_LEN_128)
-		key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
-
-	if (sta_id == ctx->bcast_sta_id)
-		key_flags |= STA_KEY_MULTICAST_MSK;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-
-	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
-	il->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
-
-	memcpy(il->stations[sta_id].keyinfo.key,
-				keyconf->key, keyconf->keylen);
-
-	memcpy(&il->stations[sta_id].sta.key.key[3],
-				keyconf->key, keyconf->keylen);
-
-	if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
-			== STA_KEY_FLG_NO_ENC)
-		il->stations[sta_id].sta.key.key_offset =
-				 il_get_free_ucode_key_idx(il);
-	/* else, we are overriding an existing key => no need to allocated room
-	 * in uCode. */
-
-	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
-		"no space for a new key");
-
-	il->stations[sta_id].sta.key.key_flags = key_flags;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-			sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-static int il4965_set_ccmp_dynamic_key_info(struct il_priv *il,
-					 struct il_rxon_context *ctx,
-					 struct ieee80211_key_conf *keyconf,
-					 u8 sta_id)
-{
-	unsigned long flags;
-	__le16 key_flags = 0;
-	struct il_addsta_cmd sta_cmd;
-
-	lockdep_assert_held(&il->mutex);
-
-	key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
-	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
-	key_flags &= ~STA_KEY_FLG_INVALID;
-
-	if (sta_id == ctx->bcast_sta_id)
-		key_flags |= STA_KEY_MULTICAST_MSK;
-
-	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
-
-	memcpy(il->stations[sta_id].keyinfo.key, keyconf->key,
-	       keyconf->keylen);
-
-	memcpy(il->stations[sta_id].sta.key.key, keyconf->key,
-	       keyconf->keylen);
-
-	if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
-			== STA_KEY_FLG_NO_ENC)
-		il->stations[sta_id].sta.key.key_offset =
-				 il_get_free_ucode_key_idx(il);
-	/* else, we are overriding an existing key => no need to allocated room
-	 * in uCode. */
-
-	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
-		"no space for a new key");
-
-	il->stations[sta_id].sta.key.key_flags = key_flags;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-			 sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-static int il4965_set_tkip_dynamic_key_info(struct il_priv *il,
-					 struct il_rxon_context *ctx,
-					 struct ieee80211_key_conf *keyconf,
-					 u8 sta_id)
-{
-	unsigned long flags;
-	int ret = 0;
-	__le16 key_flags = 0;
-
-	key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
-	key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
-	key_flags &= ~STA_KEY_FLG_INVALID;
-
-	if (sta_id == ctx->bcast_sta_id)
-		key_flags |= STA_KEY_MULTICAST_MSK;
-
-	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-
-	il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	il->stations[sta_id].keyinfo.keylen = 16;
-
-	if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
-			== STA_KEY_FLG_NO_ENC)
-		il->stations[sta_id].sta.key.key_offset =
-				 il_get_free_ucode_key_idx(il);
-	/* else, we are overriding an existing key => no need to allocated room
-	 * in uCode. */
-
-	WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
-		"no space for a new key");
-
-	il->stations[sta_id].sta.key.key_flags = key_flags;
-
-
-	/* This copy is acutally not needed: we get the key with each TX */
-	memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, 16);
-
-	memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16);
-
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return ret;
-}
-
-void il4965_update_tkip_key(struct il_priv *il,
-			 struct il_rxon_context *ctx,
-			 struct ieee80211_key_conf *keyconf,
-			 struct ieee80211_sta *sta, u32 iv32, u16 *phase1key)
-{
-	u8 sta_id;
-	unsigned long flags;
-	int i;
-
-	if (il_scan_cancel(il)) {
-		/* cancel scan failed, just live w/ bad key and rely
-		   briefly on SW decryption */
-		return;
-	}
-
-	sta_id = il_sta_id_or_broadcast(il, ctx, sta);
-	if (sta_id == IL_INVALID_STATION)
-		return;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-
-	il->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
-
-	for (i = 0; i < 5; i++)
-		il->stations[sta_id].sta.key.tkip_rx_ttak[i] =
-			cpu_to_le16(phase1key[i]);
-
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
-	il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
-
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-}
-
-int il4965_remove_dynamic_key(struct il_priv *il,
-			   struct il_rxon_context *ctx,
-			   struct ieee80211_key_conf *keyconf,
-			   u8 sta_id)
-{
-	unsigned long flags;
-	u16 key_flags;
-	u8 keyidx;
-	struct il_addsta_cmd sta_cmd;
-
-	lockdep_assert_held(&il->mutex);
-
-	ctx->key_mapping_keys--;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	key_flags = le16_to_cpu(il->stations[sta_id].sta.key.key_flags);
-	keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
-
-	D_WEP("Remove dynamic key: idx=%d sta=%d\n",
-		      keyconf->keyidx, sta_id);
-
-	if (keyconf->keyidx != keyidx) {
-		/* We need to remove a key with idx different that the one
-		 * in the uCode. This means that the key we need to remove has
-		 * been replaced by another one with different idx.
-		 * Don't do anything and return ok
-		 */
-		spin_unlock_irqrestore(&il->sta_lock, flags);
-		return 0;
-	}
-
-	if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
-		IL_WARN("Removing wrong key %d 0x%x\n",
-			    keyconf->keyidx, key_flags);
-		spin_unlock_irqrestore(&il->sta_lock, flags);
-		return 0;
-	}
-
-	if (!test_and_clear_bit(il->stations[sta_id].sta.key.key_offset,
-		&il->ucode_key_table))
-		IL_ERR("idx %d not used in uCode key table.\n",
-			il->stations[sta_id].sta.key.key_offset);
-	memset(&il->stations[sta_id].keyinfo, 0,
-					sizeof(struct il_hw_key));
-	memset(&il->stations[sta_id].sta.key, 0,
-					sizeof(struct il4965_keyinfo));
-	il->stations[sta_id].sta.key.key_flags =
-			STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
-	il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
-	if (il_is_rfkill(il)) {
-		D_WEP(
-		 "Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
-		spin_unlock_irqrestore(&il->sta_lock, flags);
-		return 0;
-	}
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-			sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-int il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
-			struct ieee80211_key_conf *keyconf, u8 sta_id)
-{
-	int ret;
-
-	lockdep_assert_held(&il->mutex);
-
-	ctx->key_mapping_keys++;
-	keyconf->hw_key_idx = HW_KEY_DYNAMIC;
-
-	switch (keyconf->cipher) {
-	case WLAN_CIPHER_SUITE_CCMP:
-		ret = il4965_set_ccmp_dynamic_key_info(il, ctx,
-							keyconf, sta_id);
-		break;
-	case WLAN_CIPHER_SUITE_TKIP:
-		ret = il4965_set_tkip_dynamic_key_info(il, ctx,
-							keyconf, sta_id);
-		break;
-	case WLAN_CIPHER_SUITE_WEP40:
-	case WLAN_CIPHER_SUITE_WEP104:
-		ret = il4965_set_wep_dynamic_key_info(il, ctx,
-							keyconf, sta_id);
-		break;
-	default:
-		IL_ERR(
-			"Unknown alg: %s cipher = %x\n", __func__,
-			keyconf->cipher);
-		ret = -EINVAL;
-	}
-
-	D_WEP(
-		"Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
-		      keyconf->cipher, keyconf->keylen, keyconf->keyidx,
-		      sta_id, ret);
-
-	return ret;
-}
-
-/**
- * il4965_alloc_bcast_station - add broadcast station into driver's station table.
- *
- * This adds the broadcast station into the driver's station table
- * and marks it driver active, so that it will be restored to the
- * device at the next best time.
- */
-int il4965_alloc_bcast_station(struct il_priv *il,
-			       struct il_rxon_context *ctx)
-{
-	struct il_link_quality_cmd *link_cmd;
-	unsigned long flags;
-	u8 sta_id;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	sta_id = il_prep_station(il, ctx, il_bcast_addr,
-								false, NULL);
-	if (sta_id == IL_INVALID_STATION) {
-		IL_ERR("Unable to prepare broadcast station\n");
-		spin_unlock_irqrestore(&il->sta_lock, flags);
-
-		return -EINVAL;
-	}
-
-	il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
-	il->stations[sta_id].used |= IL_STA_BCAST;
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	link_cmd = il4965_sta_alloc_lq(il, sta_id);
-	if (!link_cmd) {
-		IL_ERR(
-			"Unable to initialize rate scaling for bcast station.\n");
-		return -ENOMEM;
-	}
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].lq = link_cmd;
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return 0;
-}
-
-/**
- * il4965_update_bcast_station - update broadcast station's LQ command
- *
- * Only used by iwl4965. Placed here to have all bcast station management
- * code together.
- */
-static int il4965_update_bcast_station(struct il_priv *il,
-				    struct il_rxon_context *ctx)
-{
-	unsigned long flags;
-	struct il_link_quality_cmd *link_cmd;
-	u8 sta_id = ctx->bcast_sta_id;
-
-	link_cmd = il4965_sta_alloc_lq(il, sta_id);
-	if (!link_cmd) {
-		IL_ERR(
-		"Unable to initialize rate scaling for bcast station.\n");
-		return -ENOMEM;
-	}
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	if (il->stations[sta_id].lq)
-		kfree(il->stations[sta_id].lq);
-	else
-		D_INFO(
-		"Bcast station rate scaling has not been initialized yet.\n");
-	il->stations[sta_id].lq = link_cmd;
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return 0;
-}
-
-int il4965_update_bcast_stations(struct il_priv *il)
-{
-	return il4965_update_bcast_station(il, &il->ctx);
-}
-
-/**
- * il4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
- */
-int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid)
-{
-	unsigned long flags;
-	struct il_addsta_cmd sta_cmd;
-
-	lockdep_assert_held(&il->mutex);
-
-	/* Remove "disable" flag, to enable Tx for this TID */
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
-	il->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-					sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta,
-			 int tid, u16 ssn)
-{
-	unsigned long flags;
-	int sta_id;
-	struct il_addsta_cmd sta_cmd;
-
-	lockdep_assert_held(&il->mutex);
-
-	sta_id = il_sta_id(sta);
-	if (sta_id == IL_INVALID_STATION)
-		return -ENXIO;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].sta.station_flags_msk = 0;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
-	il->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
-	il->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-					sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta,
-			int tid)
-{
-	unsigned long flags;
-	int sta_id;
-	struct il_addsta_cmd sta_cmd;
-
-	lockdep_assert_held(&il->mutex);
-
-	sta_id = il_sta_id(sta);
-	if (sta_id == IL_INVALID_STATION) {
-		IL_ERR("Invalid station for AGG tid %d\n", tid);
-		return -ENXIO;
-	}
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].sta.station_flags_msk = 0;
-	il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
-	il->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-	memcpy(&sta_cmd, &il->stations[sta_id].sta,
-				sizeof(struct il_addsta_cmd));
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-	return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
-}
-
-void
-il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&il->sta_lock, flags);
-	il->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
-	il->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
-	il->stations[sta_id].sta.sta.modify_mask =
-					STA_MODIFY_SLEEP_TX_COUNT_MSK;
-	il->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
-	il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-	il_send_add_sta(il,
-				&il->stations[sta_id].sta, CMD_ASYNC);
-	spin_unlock_irqrestore(&il->sta_lock, flags);
-
-}