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Instead of writing the packet length in two 8bit pieces, use one 

16bit write.  At least in certain environments this has the effect
of the latter 8bit write of the length to be not interpreted as
the first 16 bits of the packet contents and hence the interface
working.
This commit is contained in:
pooka 2005-06-06 20:20:09 +00:00
parent e0dc2d1568
commit 7fe36dcdc1
1 changed files with 3 additions and 4 deletions
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7
sys/dev/ic/smc91cxx.c
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@ -1,4 +1,4 @@
/* $NetBSD: smc91cxx.c,v 1.51 2005/02/27 00:27:02 perry Exp $ */
/* $NetBSD: smc91cxx.c,v 1.52 2005/06/06 20:20:09 pooka Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@ -78,7 +78,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: smc91cxx.c,v 1.51 2005/02/27 00:27:02 perry Exp $");
__KERNEL_RCSID(0, "$NetBSD: smc91cxx.c,v 1.52 2005/06/06 20:20:09 pooka Exp $");
#include "opt_inet.h"
#include "opt_ccitt.h"
@ -737,8 +737,7 @@ smc91cxx_start(ifp)
* and the status word (set to zeros).
*/
bus_space_write_2(bst, bsh, DATA_REG_W, 0);
bus_space_write_1(bst, bsh, DATA_REG_B, (length + 6) & 0xff);
bus_space_write_1(bst, bsh, DATA_REG_B, ((length + 6) >> 8) & 0xff);
bus_space_write_2(bst, bsh, DATA_REG_W, (length + 6) & 0x7ff);
/*
* Get the packet from the kernel. This will include the Ethernet