Copy pxelinux's shutdown sequence: use UNLOAD_STACK without STOP_BASE,

and call UNDI_SHUTDOWN first to make sure the NIC is in a safe state.

diff --git a/src/arch/i386/prefix/pxeprefix.S b/src/arch/i386/prefix/pxeprefix.S
index 28e2716..a34bf5f 100644 (file)
--- a/src/arch/i386/prefix/pxeprefix.S
+++ b/src/arch/i386/prefix/pxeprefix.S
@@ -1,6 +1,6 @@
+#define PXENV_UNDI_SHUTDOWN    0x05
 #define        PXENV_STOP_UNDI         0x15
 #define PXENV_UNLOAD_STACK     0x70
-#define PXENV_STOP_BASE                0x76
 
 #define PXE_STACK_MAGIC                0x57ac  /* 'STac' */
 
@@ -138,13 +138,19 @@ find_undi_basemem_usage:
        shrw    $6, %cx
        movw    %cx, undi_fbms_end
 
+/*****************************************************************************
+ * Leave NIC in a safe state
+ *****************************************************************************
+ */
+shutdown_nic:
+       movw    $PXENV_UNDI_SHUTDOWN, %bx
+       call    pxe_call
+
 /*****************************************************************************
  * Unload PXE base code
  *****************************************************************************
  */    
 unload_base_code:
-       movw    $PXENV_STOP_BASE, %bx
-       call    pxe_call
        movw    $PXENV_UNLOAD_STACK, %bx
        call    pxe_call
        jnz     do_not_free_base_code