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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6/drivers/net/skfp/h/
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#if (NUM_RECEIVE_BUFFERS > 100)
85#define SMT_R1_RXD_COUNT	(1 + 100)
86#else
87#define SMT_R1_RXD_COUNT	(1 + NUM_RECEIVE_BUFFERS)
88#endif
89
90// Number of RXDs for receive queue #2.
91#define SMT_R2_RXD_COUNT	0	// Not used.
92// -----------------------
93
94
95
96/*
97 * OS-specific part of the transmit/receive descriptor structure (TXD/RXD).
98 *
99 * Note: The size of these structures must follow this rule:
100 *
101 *	sizeof(struct) + 2*sizeof(void*) == n * 16, n >= 1
102 *
103 * We use the dma_addr fields under Linux to keep track of the
104 * DMA address of the packet data, for later pci_unmap_single. -DaveM
105 */
106
107struct s_txd_os {	// os-specific part of transmit descriptor
108	struct sk_buff *skb;
109	dma_addr_t dma_addr;
110} ;
111
112struct s_rxd_os {	// os-specific part of receive descriptor
113	struct sk_buff *skb;
114	dma_addr_t dma_addr;
115} ;
116
117
118/*
119 * So we do not need to make too many modifications to the generic driver
120 * parts, we take advantage of the AIX byte swapping macro interface.
121 */
122
123#define AIX_REVERSE(x)		((u32)le32_to_cpu((u32)(x)))
124#define MDR_REVERSE(x)		((u32)le32_to_cpu((u32)(x)))
125