/* epic100.c: A SMC 83c170 EPIC/100 Fast Ethernet driver for Linux. */
/*
Written/copyright 1997-2001 by Donald Becker.
This software may be used and distributed according to the terms of
the GNU General Public License (GPL), incorporated herein by reference.
Drivers based on or derived from this code fall under the GPL and must
retain the authorship, copyright and license notice. This file is not
a complete program and may only be used when the entire operating
system is licensed under the GPL.
This driver is for the SMC83c170/175 "EPIC" series, as used on the
SMC EtherPower II 9432 PCI adapter, and several CardBus cards.
The author may be reached as becker@scyld.com, or C/O
Scyld Computing Corporation
410 Severn Ave., Suite 210
Annapolis MD 21403
Information and updates available at
http://www.scyld.com/network/epic100.html
[this link no longer provides anything useful -jgarzik]
---------------------------------------------------------------------
*/
#define DRV_NAME "epic100"
#define DRV_VERSION "2.1"
#define DRV_RELDATE "Sept 11, 2006"
/* The user-configurable values.
These may be modified when a driver module is loaded.*/
static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
/* Used to pass the full-duplex flag, etc. */
#define MAX_UNITS 8 /* More are supported, limit only on options */
static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
Setting to > 1518 effectively disables this feature. */
static int rx_copybreak;
/* Operational parameters that are set at compile time. */
/* Keep the ring sizes a power of two for operational efficiency.
The compiler will convert <unsigned>'%'<2^N> into a bit mask.
Making the Tx r
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