mwifiex: report received management frames to cfg80211

Process the management frames received from firmware and report
them to cfg80211.

Signed-off-by: Stone Piao <piaoyun@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Kevin Gan <ganhy@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

6 files changed, 58 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 41b304a33a07..b587ea3feffa 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -94,6 +94,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 };
 
 #define CAL_SNR(RSSI, NF)               ((s16)((s16)(RSSI)-(s16)(NF)))
+#define CAL_RSSI(SNR, NF)               ((s16)((s16)(SNR)+(s16)(NF)))
 
 #define UAP_BSS_PARAMS_I                        0
 #define UAP_CUSTOM_IE_I                         1
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index b2ba262f8a13..105a5c5d7d5d 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -214,6 +214,7 @@ static int mwifiex_init_priv(struct mwifiex_private *priv)
         priv->wps_ie = NULL;
         priv->wps_ie_len = 0;
         priv->ap_11n_enabled = 0;
+        priv->mgmt_rx_freq = 2437;
 
         priv->scan_block = false;
 
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 6e0806244b82..ec5794ef4366 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -497,6 +497,7 @@ struct mwifiex_private {
         struct timer_list scan_delay_timer;
         u8 ap_11n_enabled;
         u32 mgmt_frame_mask;
+        u32 mgmt_rx_freq;
 };
 
 enum mwifiex_ba_status {
@@ -741,6 +742,9 @@ int mwifiex_dnld_fw(struct mwifiex_adapter *, struct mwifiex_fw_image *);
 
 int mwifiex_recv_packet(struct mwifiex_adapter *, struct sk_buff *skb);
 
+int mwifiex_process_mgmt_packet(struct mwifiex_adapter *adapter,
+                                struct sk_buff *skb);
+
 int mwifiex_process_event(struct mwifiex_adapter *adapter);
 
 int mwifiex_complete_cmd(struct mwifiex_adapter *adapter,
diff --git a/drivers/net/wireless/mwifiex/sta_rx.c b/drivers/net/wireless/mwifiex/sta_rx.c
index d91d5c08c73a..07d32b73783e 100644
--- a/drivers/net/wireless/mwifiex/sta_rx.c
+++ b/drivers/net/wireless/mwifiex/sta_rx.c
@@ -174,6 +174,12 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
                                 dev_err(adapter->dev, "Rx of A-MSDU failed");
                 }
                 return 0;
+        } else if (rx_pkt_type == PKT_TYPE_MGMT) {
+                ret = mwifiex_process_mgmt_packet(adapter, skb);
+                if (ret)
+                        dev_err(adapter->dev, "Rx of mgmt packet failed");
+                dev_kfree_skb_any(skb);
+                return ret;
         }
 
         /*
diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c
index df17d08715fe..012c1433d126 100644
--- a/drivers/net/wireless/mwifiex/uap_txrx.c
+++ b/drivers/net/wireless/mwifiex/uap_txrx.c
@@ -217,6 +217,12 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_adapter *adapter,
                 }
 
                 return 0;
+        } else if (rx_pkt_type == PKT_TYPE_MGMT) {
+                ret = mwifiex_process_mgmt_packet(adapter, skb);
+                if (ret)
+                        dev_err(adapter->dev, "Rx of mgmt packet failed");
+                dev_kfree_skb_any(skb);
+                return ret;
         }
 
         memcpy(ta, rx_pkt_hdr->eth803_hdr.h_source, ETH_ALEN);
diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c
index 2864c74bdb6f..e1dc3e41c65d 100644
--- a/drivers/net/wireless/mwifiex/util.c
+++ b/drivers/net/wireless/mwifiex/util.c
@@ -142,6 +142,46 @@ 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_adapter *adapter,
+                            struct sk_buff *skb)
+{
+        struct rxpd *rx_pd;
+        struct mwifiex_private *priv;
+        u16 pkt_len;
+
+        if (!skb)
+                return -1;
+
+        rx_pd = (struct rxpd *)skb->data;
+        priv = mwifiex_get_priv_by_id(adapter, rx_pd->bss_num, rx_pd->bss_type);
+        if (!priv)
+                return -1;
+
+        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->mgmt_rx_freq,
+                         CAL_RSSI(rx_pd->snr, rx_pd->nf),
+                         skb->data, pkt_len, GFP_ATOMIC);
+
+        return 0;
+}
+
+/*
  * This function processes the received packet before sending it to the
  * kernel.
  *