diff --git a/fw/wmi_tlv_defs.h b/fw/wmi_tlv_defs.h
index ace268fd7d..911dc612ed 100644
--- a/fw/wmi_tlv_defs.h
+++ b/fw/wmi_tlv_defs.h
@@ -1046,6 +1046,8 @@ typedef enum {
     WMITLV_TAG_STRUC_wmi_pdev_multiple_vdev_restart_resp_event_fixed_param,
     WMITLV_TAG_STRUC_wmi_roam_get_scan_channel_list_cmd_fixed_param,
     WMITLV_TAG_STRUC_wmi_roam_scan_channel_list_event_fixed_param,
+    WMITLV_TAG_STRUC_wmi_vdev_get_big_data_cmd_fixed_param,
+    WMITLV_TAG_STRUC_wmi_vdev_send_big_data_event_fixed_param,
 } WMITLV_TAG_ID;
 
 /*
@@ -1474,6 +1476,7 @@ typedef enum {
     OP(WMI_VDEV_AUDIO_SYNC_QTIMER_CMDID) \
     OP(WMI_VDEV_SET_PCL_CMDID) \
     OP(WMI_ROAM_GET_SCAN_CHANNEL_LIST_CMDID) \
+    OP(WMI_VDEV_GET_BIG_DATA_CMDID) \
     /* add new CMD_LIST elements above this line */
 
 
@@ -1718,6 +1721,7 @@ typedef enum {
     OP(WMI_PEER_CREATE_CONF_EVENTID) \
     OP(WMI_PDEV_MULTIPLE_VDEV_RESTART_RESP_EVENTID) \
     OP(WMI_ROAM_SCAN_CHANNEL_LIST_EVENTID) \
+    OP(WMI_VDEV_SEND_BIG_DATA_EVENTID) \
     /* add new EVT_LIST elements above this line */
 
 
@@ -4282,6 +4286,11 @@ WMITLV_CREATE_PARAM_STRUC(WMI_VDEV_SET_PCL_CMDID);
     WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_roam_get_scan_channel_list_cmd_fixed_param, wmi_roam_get_scan_channel_list_cmd_fixed_param, fixed_param, WMITLV_SIZE_FIX)
 WMITLV_CREATE_PARAM_STRUC(WMI_ROAM_GET_SCAN_CHANNEL_LIST_CMDID);
 
+/* Get per vdev BIG DATA stats */
+#define WMITLV_TABLE_WMI_VDEV_GET_BIG_DATA_CMDID(id,op,buf,len) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_vdev_get_big_data_cmd_fixed_param, wmi_vdev_get_big_data_cmd_fixed_param, fixed_param, WMITLV_SIZE_FIX)
+WMITLV_CREATE_PARAM_STRUC(WMI_VDEV_GET_BIG_DATA_CMDID);
+
 
 /************************** TLV definitions of WMI events *******************************/
 
@@ -5763,6 +5772,12 @@ WMITLV_CREATE_PARAM_STRUC(WMI_PDEV_MULTIPLE_VDEV_RESTART_RESP_EVENTID);
     WMITLV_ELEM(id, op, buf, len, WMITLV_TAG_ARRAY_UINT32, A_UINT32, channel_list, WMITLV_SIZE_VAR)
 WMITLV_CREATE_PARAM_STRUC(WMI_ROAM_SCAN_CHANNEL_LIST_EVENTID);
 
+/* send BIG DATA event to host */
+#define WMITLV_TABLE_WMI_VDEV_SEND_BIG_DATA_EVENTID(id,op,buf,len) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_vdev_send_big_data_event_fixed_param, wmi_vdev_send_big_data_event_fixed_param, fixed_param, WMITLV_SIZE_FIX)
+WMITLV_CREATE_PARAM_STRUC(WMI_VDEV_SEND_BIG_DATA_EVENTID);
+
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 08375ceac0..c4e5d47bac 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -493,6 +493,8 @@ typedef enum {
     WMI_VDEV_AUDIO_SYNC_QTIMER_CMDID,
     /** Preferred channel list for each vdev */
     WMI_VDEV_SET_PCL_CMDID,
+    /** Get per vdev BIG DATA stats */
+    WMI_VDEV_GET_BIG_DATA_CMDID,
 
     /* peer specific commands */
 
@@ -1465,6 +1467,8 @@ typedef enum {
     WMI_VDEV_AUDIO_SYNC_START_STOP_EVENTID,
     /** Sends the final offset in the QTIMERs of both master and slave */
     WMI_VDEV_AUDIO_SYNC_Q_MASTER_SLAVE_OFFSET_EVENTID,
+    /* send BIG DATA stats to host */
+    WMI_VDEV_SEND_BIG_DATA_EVENTID,
 
 
     /* peer specific events */
@@ -25276,6 +25280,7 @@ static INLINE A_UINT8 *wmi_id_to_name(A_UINT32 wmi_command)
         WMI_RETURN_STRING(WMI_VDEV_AUDIO_SYNC_TRIGGER_CMDID);
         WMI_RETURN_STRING(WMI_VDEV_AUDIO_SYNC_QTIMER_CMDID);
         WMI_RETURN_STRING(WMI_ROAM_GET_SCAN_CHANNEL_LIST_CMDID);
+        WMI_RETURN_STRING(WMI_VDEV_GET_BIG_DATA_CMDID);
     }
 
     return "Invalid WMI cmd";
@@ -26979,6 +26984,77 @@ typedef struct {
  */
 } wmi_roam_scan_channel_list_event_fixed_param;
 
+typedef struct {
+    A_UINT32 tlv_header; /* TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_vdev_get_big_data_cmd_fixed_param */
+    A_UINT32 vdev_id;
+} wmi_vdev_get_big_data_cmd_fixed_param;
+
+typedef struct {
+    A_UINT32 tlv_header; /* TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_vdev_send_big_data_event_fixed_param */
+    A_UINT32 vdev_id;
+    /** param list **/
+    /* Target power (dBm units) - 2.4G/5G */
+    A_UINT32 target_power_2g_dsss;
+    A_UINT32 target_power_2g_ofdm;
+    A_UINT32 target_power_2g_mcs0;
+    A_UINT32 target_power_5g_ofdm;
+    A_UINT32 target_power_5g_mcs0;
+
+    /* ANI level from hal-phy */
+    A_UINT32 ani_level;
+
+    /* Number of probe requests sent while roaming after BMISS */
+    A_UINT32 tx_probe_req;
+
+    /* Number of probe responses received while roaming after BMISS */
+    A_UINT32 rx_probe_response;
+
+    /*
+     * Number of retries (both by HW and FW) for tx data MPDUs sent by this vdev
+     */
+    A_UINT32 num_data_retries;
+
+    /* Number of tx data MPDUs dropped from this vdev due to tx retry limit */
+    A_UINT32 num_tx_data_fail;
+
+    /* Number of aggregated unicast tx expecting response ppdu */
+    A_UINT32 data_tx_ppdu_count;
+
+    /* Number of aggregated unicast tx expecting response mpdu */
+    A_UINT32 data_tx_mpdu_count;
+
+    /* number of rx frames with good PCLP */
+    A_UINT32 rx_frame_good_pclp_count;
+
+    /* Number of occasions that no valid delimiter is detected by ampdu parser */
+    A_UINT32 invalid_delimiter_count;
+
+    /* Number of frames for which the CRC check failed in the MAC */
+    A_UINT32 rx_crc_check_fail_count;
+
+    /* tx fifo overflows count for transmissions by this vdev */
+    A_UINT32 txpcu_fifo_overflows_count;
+
+    /* Number of ucast ACKS received good FCS (doesn't include block acks) */
+    A_UINT32 successful_acks_count;
+
+    /*
+     * RX BlockACK Counts
+     * Note that this counts the number of block acks received by this vdev,
+     * not the number of MPDUs acked by block acks.
+     */
+    A_UINT32 rx_block_ack_count;
+
+    /* Beacons received from member of BSS */
+    A_UINT32 member_bss_beacon_count;
+
+    /* Beacons received from other BSS */
+    A_UINT32 non_bss_beacon_count;
+
+    /* Number of RX Data multicast frames dropped by the HW */
+    A_UINT32 rx_data_mc_frame_filtered_count;
+} wmi_vdev_send_big_data_event_fixed_param;
+
 typedef struct {
     A_UINT32 tlv_header;    /* TLV tag and len; tag equals wmi_txpower_query_cmd_fixed_param  */
     A_UINT32 request_id;    /* unique request ID to distinguish the command / event set */
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 4db923863e..ca7e66184c 100644
--- a/fw/wmi_version.h
+++ b/fw/wmi_version.h
@@ -36,7 +36,7 @@
 #define __WMI_VER_MINOR_    0
 /** WMI revision number has to be incremented when there is a
  *  change that may or may not break compatibility. */
-#define __WMI_REVISION_ 770
+#define __WMI_REVISION_ 771
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work