summaryrefslogtreecommitdiff
path: root/drivers/net/skfp/h/fplustm.h
blob: d43191ed938b41826079460d25b5107f21ab4800 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
/******************************************************************************
 *
 *	(C)Copyright 1998,1999 SysKonnect,
 *	a business unit of Schneider & Koch & Co. Datensysteme GmbH.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	The information in this file is provided "AS IS" without warranty.
 *
 ******************************************************************************/

/*
 *	AMD Fplus in tag mode data structs
 *	defs for fplustm.c
 */

#ifndef	_FPLUS_
#define _FPLUS_

#ifndef	HW_PTR
#define	HW_PTR	void __iomem *
#endif

/*
 * fplus error statistic structure
 */
struct err_st {
	u_long err_valid ;		/* memory status valid */
	u_long err_abort ;		/* memory status receive abort */
	u_long err_e_indicator ;	/* error indicator */
	u_long err_crc ;		/* error detected (CRC or length) */
	u_long err_llc_frame ;		/* LLC frame */
	u_long err_mac_frame ;		/* MAC frame */
	u_long err_smt_frame ;		/* SMT frame */
	u_long err_imp_frame ;		/* implementer frame */
	u_long err_no_buf ;		/* no buffer available */
	u_long err_too_long ;		/* longer than max. buffer */
	u_long err_bec_stat ;		/* beacon state entered */
	u_long err_clm_stat ;		/* claim state entered */
	u_long err_sifg_det ;		/* short interframe gap detect */
	u_long err_phinv ;		/* PHY invalid */
	u_long err_tkiss ;		/* token issued */
	u_long err_tkerr ;		/* token error */
} ;

/*
 *	Transmit Descriptor struct
 */
struct s_smt_fp_txd {
	__le32 txd_tbctrl ;		/* transmit buffer control */
	__le32 txd_txdscr ;		/* transmit frame status word */
	__le32 txd_tbadr ;		/* physical tx buffer address */
	__le32 txd_ntdadr ;		/* physical pointer to the next TxD */
#ifdef	ENA_64BIT_SUP
	__le32 txd_tbadr_hi ;		/* physical tx buffer addr (high dword)*/
#endif
	char far *txd_virt ;		/* virtual pointer to the data frag */
					/* virt pointer to the next TxD */
	struct s_smt_fp_txd volatile far *txd_next ;
	struct s_txd_os txd_os ;	/* OS - specific struct */
} ;

/*
 *	Receive Descriptor struct
 */
struct s_smt_fp_rxd {
	__le32 rxd_rbctrl ;		/* receive buffer control */
	__le32 rxd_rfsw ;		/* receive frame status word */
	__le32 rxd_rbadr ;		/* physical rx buffer address */
	__le32 rxd_nrdadr ;		/* physical pointer to the next RxD */
#ifdef	ENA_64BIT_SUP
	__le32 rxd_rbadr_hi ;		/* physical tx buffer addr (high dword)*/
#endif
	char far *rxd_virt ;		/* virtual pointer to the data frag */
					/* virt pointer to the next RxD */
	struct s_smt_fp_rxd volatile far *rxd_next ;
	struct s_rxd_os rxd_os ;	/* OS - specific struct */
} ;

/*
 *	Descriptor Union Definition
 */
union s_fp_descr {
	struct	s_smt_fp_txd t ;		/* pointer to the TxD */
	struct	s_smt_fp_rxd r ;		/* pointer to the RxD */
} ;

/*
 *	TxD Ring Control struct
 */
struct s_smt_tx_queue {
	struct s_smt_fp_txd volatile *tx_curr_put ; /* next free TxD */
	struct s_smt_fp_txd volatile *tx_prev_put ; /* shadow put pointer */
	struct s_smt_fp_txd volatile *tx_curr_get ; /* next TxD to release*/
	u_short tx_free ;			/* count of free TxD's */
	u_short tx_used ;			/* count of used TxD's */
	HW_PTR tx_bmu_ctl ;			/* BMU addr for tx start */
	HW_PTR tx_bmu_dsc ;			/* BMU addr for curr dsc. */
} ;

/*
 *	RxD Ring Control struct
 */
struct s_smt_rx_queue {
	struct s_smt_fp_rxd volatile *rx_curr_put ; /* next RxD to queue into */
	struct s_smt_fp_rxd volatile *rx_prev_put ; /* shadow put pointer */
	struct s_smt_fp_rxd volatile *rx_curr_get ; /* next RxD to fill */
	u_short rx_free ;			/* count of free RxD's */
	u_short rx_used ;			/* count of used RxD's */
	HW_PTR rx_bmu_ctl ;			/* BMU addr for rx start */
	HW_PTR rx_bmu_dsc ;			/* BMU addr for curr dsc. */
} ;

#define VOID_FRAME_OFF		0x00
#define CLAIM_FRAME_OFF		0x08
#define BEACON_FRAME_OFF	0x10
#define DBEACON_FRAME_OFF	0x18
#define RX_FIFO_OFF		0x21		/* to get a prime number for */
						/* the RX_FIFO_SPACE */

#define RBC_MEM_SIZE		0x8000
#define SEND_ASYNC_AS_SYNC	0x1
#define	SYNC_TRAFFIC_ON		0x2

/* big FIFO memory */
#define	RX_FIFO_SPACE		0x4000 - RX_FIFO_OFF
#define	TX_FIFO_SPACE		0x4000

#define	TX_SMALL_FIFO		0x0900
#define	TX_MEDIUM_FIFO		TX_FIFO_SPACE / 2	
#define	TX_LARGE_FIFO		TX_FIFO_SPACE - TX_SMALL_FIFO	

#define	RX_SMALL_FIFO		0x0900
#define	RX_LARGE_FIFO		RX_FIFO_SPACE - RX_SMALL_FIFO	

struct s_smt_fifo_conf {
	u_short	rbc_ram_start ;		/* FIFO start address */
	u_short	rbc_ram_end ;		/* FIFO size */
	u_short	rx1_fifo_start ;	/* rx queue start address */
	u_short	rx1_fifo_size ;		/* rx queue size */
	u_short	rx2_fifo_start ;	/* rx queue start address */
	u_short	rx2_fifo_size ;		/* rx queue size */
	u_short	tx_s_start ;		/* sync queue start address */
	u_short	tx_s_size ;		/* sync queue size */
	u_short	tx_a0_start ;		/* async queue A0 start address */
	u_short	tx_a0_size ;		/* async queue A0 size */
	u_short	fifo_config_mode ;	/* FIFO configuration mode */
} ;

#define FM_ADDRX	(FM_ADDET|FM_EXGPA0|FM_EXGPA1)

struct s_smt_fp {
	u_short	mdr2init ;		/* mode register 2 init value */
	u_short	mdr3init ;		/* mode register 3 init value */
	u_short frselreg_init ;		/* frame selection register init val */
	u_short	rx_mode ;		/* address mode broad/multi/promisc */
	u_short	nsa_mode ;
	u_short rx_prom ;
	u_short	exgpa ;

	struct err_st err_stats ;	/* error statistics */

	/*
	 * MAC buffers
	 */
	struct fddi_mac_sf {		/* special frame build buffer */
		u_char			mac_fc ;
		struct fddi_addr	mac_dest ;
		struct fddi_addr	mac_source ;
		u_char			mac_info[0x20] ;
	} mac_sfb ;


	/*
	 * queues
	 */
#define QUEUE_S			0
#define QUEUE_A0		1
#define QUEUE_R1		0
#define QUEUE_R2		1
#define USED_QUEUES		2

	/*
	 * queue pointers; points to the queue dependent variables
	 */
	struct s_smt_tx_queue *tx[USED_QUEUES] ;
	struct s_smt_rx_queue *rx[USED_QUEUES] ;

	/*
	 * queue dependent variables
	 */
	struct s_smt_tx_queue tx_q[USED_QUEUES] ;
	struct s_smt_rx_queue rx_q[USED_QUEUES] ;

	/*
	 * FIFO configuration struct
	 */
	struct	s_smt_fifo_conf	fifo ;

	/* last formac status */
	u_short	 s2u ;
	u_short	 s2l ;

	/* calculated FORMAC+ reg.addr. */
	HW_PTR	fm_st1u ;
	HW_PTR	fm_st1l ;
	HW_PTR	fm_st2u ;
	HW_PTR	fm_st2l ;
	HW_PTR	fm_st3u ;
	HW_PTR	fm_st3l ;


	/*
	 * multicast table
	 */
#define FPMAX_MULTICAST 32 
#define	SMT_MAX_MULTI	4
	struct {
		struct s_fpmc {
			struct fddi_addr	a ;	/* mc address */
			u_char			n ;	/* usage counter */
			u_char			perm ;	/* flag: permanent */
		} table[FPMAX_MULTICAST] ;
	} mc ;
	struct fddi_addr	group_addr ;
	u_long	func_addr ;		/* functional address */
	int	smt_slots_used ;	/* count of table entries for the SMT */
	int	os_slots_used ;		/* count of table entries */ 
					/* used by the os-specific module */
} ;

/*
 * modes for mac_set_rx_mode()
 */
#define RX_ENABLE_ALLMULTI	1	/* enable all multicasts */
#define RX_DISABLE_ALLMULTI	2	/* disable "enable all multicasts" */
#define RX_ENABLE_PROMISC	3	/* enable promiscuous */
#define RX_DISABLE_PROMISC	4	/* disable promiscuous */
#define RX_ENABLE_NSA		5	/* enable reception of NSA frames */
#define RX_DISABLE_NSA		6	/* disable reception of NSA frames */


/*
 * support for byte reversal in AIX
 * (descriptors and pointers must be byte reversed in memory
 *  CPU is big endian; M-Channel is little endian)
 */
#ifdef	AIX
#define MDR_REV
#define	AIX_REVERSE(x)		((((x)<<24L)&0xff000000L)	+	\
				 (((x)<< 8L)&0x00ff0000L)	+	\
				 (((x)>> 8L)&0x0000ff00L)	+	\
				 (((x)>>24L)&0x000000ffL))
#else
#ifndef AIX_REVERSE
#define	AIX_REVERSE(x)	(x)
#endif
#endif

#ifdef	MDR_REV	
#define	MDR_REVERSE(x)		((((x)<<24L)&0xff000000L)	+	\
				 (((x)<< 8L)&0x00ff0000L)	+	\
				 (((x)>> 8L)&0x0000ff00L)	+	\
				 (((x)>>24L)&0x000000ffL))
#else
#ifndef MDR_REVERSE
#define	MDR_REVERSE(x)	(x)
#endif
#endif

#endif