nfs: NfsTimeout() updates

- NfsTimeout() does not correctly update the NFS timeout value which
  results in NfsTimeout() only being called once in certain situations.
  This can result in the 'nfs' command hanging indefinetly.  For
  example, the command:

    nfs 192.168.0.1:/home/user/file

  will not exit until ctrl-c is pressed if 192.168.0.1 does not have an
  NFS server running.

  This issue is resolved by reinitializting the NFS timeout value inside
  NfsTimeout() when a timeout occurs.

- Make the 'nfs' command print the 'T' character when a timeout occurs.
  Previously there was no indication that timeouts were occuring.

- Mimic the 'tftpboot' command and when a download fails print "Retry
  count exceeded; starting again", and restart the download taking the
  'netretry' environment variable into account.

Signed-off-by: Evan Samanas <esamanas@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Tested on TQM8xxL.

Tested by: Wolfgang Denk <wd@denx.de>

Tested on MPC8527DS.

Tested by: Ed Swarthout <Ed.Swarthout@freescale.com>

diff --git a/net/nfs.c b/net/nfs.c
index c39f616d9ba98b7f0686bd8f4304d7d066090be5..4017c3e3539bc277d2fc95eb0770c649efd8e0f6 100644 (file)
--- a/net/nfs.c
+++ b/net/nfs.c
@@ -571,13 +571,14 @@ Interfaces of U-BOOT
 static void
 NfsTimeout (void)
 {
-       if ( NfsTimeoutCount++ < NFS_RETRY_COUNT ) {
+       if ( ++NfsTimeoutCount > NFS_RETRY_COUNT ) {
+               puts ("\nRetry count exceeded; starting again\n");
+               NetStartAgain ();
+       } else {
+               puts("T ");
+               NetSetTimeout (NFS_TIMEOUT, NfsTimeout);
                NfsSend ();
-               return;
        }
-       puts ("Timeout\n");
-       NetState = NETLOOP_FAIL;
-       return;
 }
 
 static void