firmware: rst active_rpt if eth link is not active

src/main.rs

@@ -72,7 +72,9 @@ fn main() -> ! {
     loop {
         wd.feed();
 
-        net::net::eth_poll_and_update_link_speed();
+        if !net::net::eth_poll_link_status_and_update_link_speed() {
+            active_report = [false; net::net::NUM_OF_SOCKETS];
+        }
 
         match state {
             State::LoadFlashSettings => {

src/net/net.rs

@@ -352,13 +352,14 @@ impl<M: Miim> EthernetPhy<M> {
     }
 }
 
-pub fn eth_poll_and_update_link_speed() {
+pub fn eth_poll_link_status_and_update_link_speed() -> bool {
     unsafe {
         if let Some(ref mut server_handle ) = SERVER_HANDLE {
             server_handle.update_link_speed();
+            return server_handle.link_was_up;
         }
         else {
-            panic!("eth_poll_and_update_link_speed is called before init");
+            panic!("eth_poll_link_status_and_update_link_speed is called before init");
         }
     }
 }