1 files changed, 188 insertions, 23 deletions

diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c
index 06976f517f6..6da5abf52e6 100644
--- a/drivers/net/wireless/mwifiex/util.c
+++ b/drivers/net/wireless/mwifiex/util.c
@@ -72,7 +72,7 @@ int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
 		return -1;
 	}
 
-	return mwifiex_send_cmd_sync(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL);
+	return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true);
 }
 EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);
 
@@ -91,12 +91,12 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
 		memcpy(info->packets_out,
 		       priv->wmm.packets_out,
 		       sizeof(priv->wmm.packets_out));
-		info->max_tx_buf_size = (u32) adapter->max_tx_buf_size;
+		info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size;
 		info->tx_buf_size = (u32) adapter->tx_buf_size;
-		info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(
-					priv, info->rx_tbl);
-		info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(
-					priv, info->tx_tbl);
+		info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv,
+							      info->rx_tbl);
+		info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv,
+								info->tx_tbl);
 		info->ps_mode = adapter->ps_mode;
 		info->ps_state = adapter->ps_state;
 		info->is_deep_sleep = adapter->is_deep_sleep;
@@ -104,22 +104,22 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
 		info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
 		info->is_hs_configured = adapter->is_hs_configured;
 		info->hs_activated = adapter->hs_activated;
+		info->is_cmd_timedout = adapter->is_cmd_timedout;
 		info->num_cmd_host_to_card_failure
-			= adapter->dbg.num_cmd_host_to_card_failure;
+				= adapter->dbg.num_cmd_host_to_card_failure;
 		info->num_cmd_sleep_cfm_host_to_card_failure
 			= adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
 		info->num_tx_host_to_card_failure
-			= adapter->dbg.num_tx_host_to_card_failure;
+				= adapter->dbg.num_tx_host_to_card_failure;
 		info->num_event_deauth = adapter->dbg.num_event_deauth;
 		info->num_event_disassoc = adapter->dbg.num_event_disassoc;
 		info->num_event_link_lost = adapter->dbg.num_event_link_lost;
 		info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
 		info->num_cmd_assoc_success =
-			adapter->dbg.num_cmd_assoc_success;
+					adapter->dbg.num_cmd_assoc_success;
 		info->num_cmd_assoc_failure =
-			adapter->dbg.num_cmd_assoc_failure;
+					adapter->dbg.num_cmd_assoc_failure;
 		info->num_tx_timeout = adapter->dbg.num_tx_timeout;
-		info->num_cmd_timeout = adapter->dbg.num_cmd_timeout;
 		info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
 		info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
 		memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
@@ -142,6 +142,42 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
 }
 
 /*
+ * This function processes the received management packet and send it
+ * to the kernel.
+ */
+int
+mwifiex_process_mgmt_packet(struct mwifiex_private *priv,
+			    struct sk_buff *skb)
+{
+	struct rxpd *rx_pd;
+	u16 pkt_len;
+
+	if (!skb)
+		return -1;
+
+	rx_pd = (struct rxpd *)skb->data;
+
+	skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset));
+	skb_pull(skb, sizeof(pkt_len));
+
+	pkt_len = le16_to_cpu(rx_pd->rx_pkt_length);
+
+	/* Remove address4 */
+	memmove(skb->data + sizeof(struct ieee80211_hdr_3addr),
+		skb->data + sizeof(struct ieee80211_hdr),
+		pkt_len - sizeof(struct ieee80211_hdr));
+
+	pkt_len -= ETH_ALEN + sizeof(pkt_len);
+	rx_pd->rx_pkt_length = cpu_to_le16(pkt_len);
+
+	cfg80211_rx_mgmt(priv->wdev, priv->roc_cfg.chan.center_freq,
+			 CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len,
+			 0, GFP_ATOMIC);
+
+	return 0;
+}
+
+/*
  * This function processes the received packet before sending it to the
  * kernel.
  *
@@ -150,24 +186,40 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
  * the function creates a blank SKB, fills it with the data from the
  * received buffer and then sends this new SKB to the kernel.
  */
-int mwifiex_recv_packet(struct mwifiex_adapter *adapter, struct sk_buff *skb)
+int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb)
 {
-	struct mwifiex_rxinfo *rx_info;
-	struct mwifiex_private *priv;
-
 	if (!skb)
 		return -1;
 
-	rx_info = MWIFIEX_SKB_RXCB(skb);
-	priv = mwifiex_bss_index_to_priv(adapter, rx_info->bss_index);
-	if (!priv)
-		return -1;
+	priv->stats.rx_bytes += skb->len;
+	priv->stats.rx_packets++;
 
 	skb->dev = priv->netdev;
 	skb->protocol = eth_type_trans(skb, priv->netdev);
 	skb->ip_summed = CHECKSUM_NONE;
-	priv->stats.rx_bytes += skb->len;
-	priv->stats.rx_packets++;
+
+	/* This is required only in case of 11n and USB/PCIE as we alloc
+	 * a buffer of 4K only if its 11N (to be able to receive 4K
+	 * AMSDU packets). In case of SD we allocate buffers based
+	 * on the size of packet and hence this is not needed.
+	 *
+	 * Modifying the truesize here as our allocation for each
+	 * skb is 4K but we only receive 2K packets and this cause
+	 * the kernel to start dropping packets in case where
+	 * application has allocated buffer based on 2K size i.e.
+	 * if there a 64K packet received (in IP fragments and
+	 * application allocates 64K to receive this packet but
+	 * this packet would almost double up because we allocate
+	 * each 1.5K fragment in 4K and pass it up. As soon as the
+	 * 64K limit hits kernel will start to drop rest of the
+	 * fragments. Currently we fail the Filesndl-ht.scr script
+	 * for UDP, hence this fix
+	 */
+	if ((priv->adapter->iface_type == MWIFIEX_USB ||
+	     priv->adapter->iface_type == MWIFIEX_PCIE) &&
+	    (skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE))
+		skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE);
+
 	if (in_interrupt())
 		netif_rx(skb);
 	else
@@ -188,9 +240,8 @@ int mwifiex_recv_packet(struct mwifiex_adapter *adapter, struct sk_buff *skb)
 int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
 			 struct cmd_ctrl_node *cmd_node)
 {
-	atomic_dec(&adapter->cmd_pending);
 	dev_dbg(adapter->dev, "cmd completed: status=%d\n",
-					adapter->cmd_wait_q.status);
+		adapter->cmd_wait_q.status);
 
 	*(cmd_node->condition) = true;
 
@@ -201,3 +252,117 @@ int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
 
 	return 0;
 }
+
+/* This function will return the pointer to station entry in station list
+ * table which matches specified mac address.
+ * This function should be called after acquiring RA list spinlock.
+ * NULL is returned if station entry is not found in associated STA list.
+ */
+struct mwifiex_sta_node *
+mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac)
+{
+	struct mwifiex_sta_node *node;
+
+	if (!mac)
+		return NULL;
+
+	list_for_each_entry(node, &priv->sta_list, list) {
+		if (!memcmp(node->mac_addr, mac, ETH_ALEN))
+			return node;
+	}
+
+	return NULL;
+}
+
+/* This function will add a sta_node entry to associated station list
+ * table with the given mac address.
+ * If entry exist already, existing entry is returned.
+ * If received mac address is NULL, NULL is returned.
+ */
+struct mwifiex_sta_node *
+mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac)
+{
+	struct mwifiex_sta_node *node;
+	unsigned long flags;
+
+	if (!mac)
+		return NULL;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+	node = mwifiex_get_sta_entry(priv, mac);
+	if (node)
+		goto done;
+
+	node = kzalloc(sizeof(*node), GFP_ATOMIC);
+	if (!node)
+		goto done;
+
+	memcpy(node->mac_addr, mac, ETH_ALEN);
+	list_add_tail(&node->list, &priv->sta_list);
+
+done:
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+	return node;
+}
+
+/* This function will search for HT IE in association request IEs
+ * and set station HT parameters accordingly.
+ */
+void
+mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies,
+		       int ies_len, struct mwifiex_sta_node *node)
+{
+	const struct ieee80211_ht_cap *ht_cap;
+
+	if (!ies)
+		return;
+
+	ht_cap = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
+	if (ht_cap) {
+		node->is_11n_enabled = 1;
+		node->max_amsdu = le16_to_cpu(ht_cap->cap_info) &
+				  IEEE80211_HT_CAP_MAX_AMSDU ?
+				  MWIFIEX_TX_DATA_BUF_SIZE_8K :
+				  MWIFIEX_TX_DATA_BUF_SIZE_4K;
+	} else {
+		node->is_11n_enabled = 0;
+	}
+
+	return;
+}
+
+/* This function will delete a station entry from station list */
+void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac)
+{
+	struct mwifiex_sta_node *node;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+
+	node = mwifiex_get_sta_entry(priv, mac);
+	if (node) {
+		list_del(&node->list);
+		kfree(node);
+	}
+
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+	return;
+}
+
+/* This function will delete all stations from associated station list. */
+void mwifiex_del_all_sta_list(struct mwifiex_private *priv)
+{
+	struct mwifiex_sta_node *node, *tmp;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+
+	list_for_each_entry_safe(node, tmp, &priv->sta_list, list) {
+		list_del(&node->list);
+		kfree(node);
+	}
+
+	INIT_LIST_HEAD(&priv->sta_list);
+	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+	return;
+}