qcacmn: Update dp_peer structure to store qdf timers to detect DOS attack

Update dp_peer structure to store qdf timers to detect DOS attack. Following
driver ops are registerd to access the dp peer information
    - last_assoc_received
    - last_disassoc_received
    - last_deaauth_received
    - clear_peer

Change-Id: I21a3f4e5ab626e62f58f307d02640b7d96c9b1ef
CRs-Fixed: 1116647

dp/wifi3.0/dp_peer.c

@@ -760,6 +760,22 @@ void dp_peer_rx_cleanup(struct dp_vdev *vdev, struct dp_peer *peer)
 #endif
 }
 
+/*
+ * dp_peer_cleanup() – Cleanup peer information
+ * @vdev: Datapath vdev
+ * @peer: Datapath peer
+ *
+ */
+void dp_peer_cleanup(struct dp_vdev *vdev, struct dp_peer *peer)
+{
+	peer->last_assoc_rcvd = 0;
+	peer->last_disassoc_rcvd = 0;
+	peer->last_deauth_rcvd = 0;
+
+	/* cleanup the Rx reorder queues for this peer */
+	dp_peer_rx_cleanup(vdev, peer);
+}
+
 /*
 * dp_rx_addba_requestprocess_wifi3() – Process ADDBA request from peer
 *
@@ -1167,6 +1183,51 @@ int dp_get_peer_state(void *peer_handle)
 	return peer->state;
 }
 
+/**
+ * dp_get_last_assoc_received() - get time of last assoc received
+ * @peer_handle: peer handle
+ *
+ * Return: pointer for the time of last assoc received
+ */
+qdf_time_t *dp_get_last_assoc_received(void *peer_handle)
+{
+	struct dp_peer *peer = peer_handle;
+
+	DP_TRACE(INFO, "peer %p last_assoc_rcvd: %lu", peer,
+		peer->last_assoc_rcvd);
+	return &peer->last_assoc_rcvd;
+}
+
+/**
+ * dp_get_last_disassoc_received() - get time of last disassoc received
+ * @peer_handle: peer handle
+ *
+ * Return: pointer for the time of last disassoc received
+ */
+qdf_time_t *dp_get_last_disassoc_received(void *peer_handle)
+{
+	struct dp_peer *peer = peer_handle;
+
+	DP_TRACE(INFO, "peer %p last_disassoc_rcvd: %lu", peer,
+		peer->last_disassoc_rcvd);
+	return &peer->last_disassoc_rcvd;
+}
+
+/**
+ * dp_get_last_deauth_received() - get time of last deauth received
+ * @peer_handle: peer handle
+ *
+ * Return: pointer for the time of last deauth received
+ */
+qdf_time_t *dp_get_last_deauth_received(void *peer_handle)
+{
+	struct dp_peer *peer = peer_handle;
+
+	DP_TRACE(INFO, "peer %p last_deauth_rcvd: %lu", peer,
+		peer->last_deauth_rcvd);
+	return &peer->last_deauth_rcvd;
+}
+
 /**
  * dp_local_peer_id_pool_init() - local peer id pool alloc for physical device
  * @pdev - data path device instance