[U-Boot] [PATCH] nfs: NfsTimeout() updates

[Peter Tyser]

From: Evan Samanas <esamanas at xes-inc.com>

- 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 at xes-inc.com>
Signed-off-by: Peter Tyser <ptyser at xes-inc.com>
---
 net/nfs.c |   11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/net/nfs.c b/net/nfs.c
index 27395fb..51b17c7 100644
--- 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
-- 
1.6.2.1