/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Driver for SGI's IOC3 based Ethernet cards as found in the PCI card.
*
* Copyright (C) 1999, 2000, 01, 03, 06 Ralf Baechle
* Copyright (C) 1995, 1999, 2000, 2001 by Silicon Graphics, Inc.
*
* References:
* o IOC3 ASIC specification 4.51, 1996-04-18
* o IEEE 802.3 specification, 2000 edition
* o DP38840A Specification, National Semiconductor, March 1997
*
* To do:
*
* o Handle allocation failures in ioc3_alloc_skb() more gracefully.
* o Handle allocation failures in ioc3_init_rings().
* o Use prefetching for large packets. What is a good lower limit
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