1/******************************************************************************
  2 *
  3 *	(C)Copyright 1998,1999 SysKonnect,
  4 *	a business unit of Schneider & Koch & Co. Datensysteme GmbH.
  5 *
  6 *	This program is free software; you can redistribute it and/or modify
  7 *	it under the terms of the GNU General Public License as published by
  8 *	the Free Software Foundation; either version 2 of the License, or
  9 *	(at your option) any later version.
 10 *
 11 *	The information in this file is provided "AS IS" without warranty.
 12 *
 13 ******************************************************************************/
 14
 15/* 
 16 * Operating system-dependent definitions that have to be defined
 17 * before any other header files are included.
 18 */
 19
 20// HWM (HardWare Module) Definitions
 21// -----------------------
 22
 23#include <asm/byteorder.h>
 24
 25#ifdef __LITTLE_ENDIAN
 26#define LITTLE_ENDIAN
 27#else
 28#define BIG_ENDIAN
 29#endif
 30
 31// this is set in the makefile
 32// #define PCI			/* only PCI adapters supported by this driver */
 33// #define MEM_MAPPED_IO	/* use memory mapped I/O */
 34
 35
 36#define USE_CAN_ADDR		/* DA and SA in MAC header are canonical. */
 37
 38#define MB_OUTSIDE_SMC		/* SMT Mbufs outside of smc struct. */
 39
 40// -----------------------
 41
 42
 43// SMT Definitions 
 44// -----------------------
 45#define SYNC	       		/* allow synchronous frames */
 46
 47// #define SBA			/* Synchronous Bandwidth Allocator support */
 48				/* not available as free source */
 49
 50#define ESS			/* SBA End Station Support */
 51
 52#define	SMT_PANIC(smc, nr, msg)	printk(KERN_INFO "SMT PANIC: code: %d, msg: %s\n",nr,msg)
 53
 54
 55#ifdef DEBUG
 56#define printf(s,args...) printk(KERN_INFO s, ## args)
 57#endif
 58
 59// #define HW_PTR	u_long
 60// -----------------------
 61
 62
 63
 64// HWM and OS-specific buffer definitions
 65// -----------------------
 66
 67// default number of receive buffers.
 68#define NUM_RECEIVE_BUFFERS		10
 69
 70// default number of transmit buffers.
 71#define NUM_TRANSMIT_BUFFERS		10
 72
 73// Number of SMT buffers (Mbufs).
 74#define NUM_SMT_BUF	4
 75
 76// Number of TXDs for asynchronous transmit queue.
 77#define HWM_ASYNC_TXD_COUNT	(NUM_TRANSMIT_BUFFERS + NUM_SMT_BUF)
 78
 79// Number of TXDs for synchronous transmit queue.
 80#define HWM_SYNC_TXD_COUNT	HWM_ASYNC_TXD_COUNT
 81
 82
 83// Number of RXDs for receive queue #1.
 84// Note: Workaround for ASIC Errata #7: One extra RXD is required.
 85#if (NUM_RECEIVE_BUFFERS > 100)
 86#define SMT_R1_RXD_COUNT	(1 + 100)
 87#else
 88#define SMT_R1_RXD_COUNT	(1 + NUM_RECEIVE_BUFFERS)
 89#endif
 90
 91// Number of RXDs for receive queue #2.
 92#define SMT_R2_RXD_COUNT	0	// Not used.
 93// -----------------------
 94
 95
 96
 97/*
 98 * OS-specific part of the transmit/receive descriptor structure (TXD/RXD).
 99 *
100 * Note: The size of these structures must follow this rule:
101 *
102 *	sizeof(struct) + 2*sizeof(void*) == n * 16, n >= 1
103 *
104 * We use the dma_addr fields under Linux to keep track of the
105 * DMA address of the packet data, for later pci_unmap_single. -DaveM
106 */
107
108struct s_txd_os {	// os-specific part of transmit descriptor
109	struct sk_buff *skb;
110	dma_addr_t dma_addr;
111} ;
112
113struct s_rxd_os {	// os-specific part of receive descriptor
114	struct sk_buff *skb;
115	dma_addr_t dma_addr;
116} ;
117
118
119/*
120 * So we do not need to make too many modifications to the generic driver
121 * parts, we take advantage of the AIX byte swapping macro interface.
122 */
123
124#define AIX_REVERSE(x)		((u32)le32_to_cpu((u32)(x)))
125#define MDR_REVERSE(x)		((u32)le32_to_cpu((u32)(x)))