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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 * AMD Fplus in tag mode data structs
17 * defs for fplustm.c
18 */
19
20#ifndef _FPLUS_
21#define _FPLUS_
22
23#ifndef HW_PTR
24#define HW_PTR void __iomem *
25#endif
26
27/*
28 * fplus error statistic structure
29 */
30struct err_st {
31 u_long err_valid ; /* memory status valid */
32 u_long err_abort ; /* memory status receive abort */
33 u_long err_e_indicator ; /* error indicator */
34 u_long err_crc ; /* error detected (CRC or length) */
35 u_long err_llc_frame ; /* LLC frame */
36 u_long err_mac_frame ; /* MAC frame */
37 u_long err_smt_frame ; /* SMT frame */
38 u_long err_imp_frame ; /* implementer frame */
39 u_long err_no_buf ; /* no buffer available */
40 u_long err_too_long ; /* longer than max. buffer */
41 u_long err_bec_stat ; /* beacon state entered */
42 u_long err_clm_stat ; /* claim state entered */
43 u_long err_sifg_det ; /* short interframe gap detect */
44 u_long err_phinv ; /* PHY invalid */
45 u_long err_tkiss ; /* token issued */
46 u_long err_tkerr ; /* token error */
47} ;
48
49/*
50 * Transmit Descriptor struct
51 */
52struct s_smt_fp_txd {
53 __le32 txd_tbctrl ; /* transmit buffer control */
54 __le32 txd_txdscr ; /* transmit frame status word */
55 __le32 txd_tbadr ; /* physical tx buffer address */
56 __le32 txd_ntdadr ; /* physical pointer to the next TxD */
57#ifdef ENA_64BIT_SUP
58 __le32 txd_tbadr_hi ; /* physical tx buffer addr (high dword)*/
59#endif
60 char far *txd_virt ; /* virtual pointer to the data frag */
61 /* virt pointer to the next TxD */
62 struct s_smt_fp_txd volatile far *txd_next ;
63 struct s_txd_os txd_os ; /* OS - specific struct */
64} ;
65
66/*
67 * Receive Descriptor struct
68 */
69struct s_smt_fp_rxd {
70 __le32 rxd_rbctrl ; /* receive buffer control */
71 __le32 rxd_rfsw ; /* receive frame status word */
72 __le32 rxd_rbadr ; /* physical rx buffer address */
73 __le32 rxd_nrdadr ; /* physical pointer to the next RxD */
74#ifdef ENA_64BIT_SUP
75 __le32 rxd_rbadr_hi ; /* physical tx buffer addr (high dword)*/
76#endif
77 char far *rxd_virt ; /* virtual pointer to the data frag */
78 /* virt pointer to the next RxD */
79 struct s_smt_fp_rxd volatile far *rxd_next ;
80 struct s_rxd_os rxd_os ; /* OS - specific struct */
81} ;
82
83/*
84 * Descriptor Union Definition
85 */
86union s_fp_descr {
87 struct s_smt_fp_txd t ; /* pointer to the TxD */
88 struct s_smt_fp_rxd r ; /* pointer to the RxD */
89} ;
90
91/*
92 * TxD Ring Control struct
93 */
94struct s_smt_tx_queue {
95 struct s_smt_fp_txd volatile *tx_curr_put ; /* next free TxD */
96 struct s_smt_fp_txd volatile *tx_prev_put ; /* shadow put pointer */
97 struct s_smt_fp_txd volatile *tx_curr_get ; /* next TxD to release*/
98 u_short tx_free ; /* count of free TxD's */
99 u_short tx_used ; /* count of used TxD's */
100 HW_PTR tx_bmu_ctl ; /* BMU addr for tx start */
101 HW_PTR tx_bmu_dsc ; /* BMU addr for curr dsc. */
102} ;
103
104/*
105 * RxD Ring Control struct
106 */
107struct s_smt_rx_queue {
108 struct s_smt_fp_rxd volatile *rx_curr_put ; /* next RxD to queue into */
109 struct s_smt_fp_rxd volatile *rx_prev_put ; /* shadow put pointer */
110 struct s_smt_fp_rxd volatile *rx_curr_get ; /* next RxD to fill */
111 u_short rx_free ; /* count of free RxD's */
112 u_short rx_used ; /* count of used RxD's */
113 HW_PTR rx_bmu_ctl ; /* BMU addr for rx start */
114 HW_PTR rx_bmu_dsc ; /* BMU addr for curr dsc. */
115} ;
116
117#define VOID_FRAME_OFF 0x00
118#define CLAIM_FRAME_OFF 0x08
119#define BEACON_FRAME_OFF 0x10
120#define DBEACON_FRAME_OFF 0x18
121#define RX_FIFO_OFF 0x21 /* to get a prime number for */
122 /* the RX_FIFO_SPACE */
123
124#define RBC_MEM_SIZE 0x8000
125#define SEND_ASYNC_AS_SYNC 0x1
126#define SYNC_TRAFFIC_ON 0x2
127
128/* big FIFO memory */
129#define RX_FIFO_SPACE 0x4000 - RX_FIFO_OFF
130#define TX_FIFO_SPACE 0x4000
131
132#define TX_SMALL_FIFO 0x0900
133#define TX_MEDIUM_FIFO TX_FIFO_SPACE / 2
134#define TX_LARGE_FIFO TX_FIFO_SPACE - TX_SMALL_FIFO
135
136#define RX_SMALL_FIFO 0x0900
137#define RX_LARGE_FIFO RX_FIFO_SPACE - RX_SMALL_FIFO
138
139struct s_smt_fifo_conf {
140 u_short rbc_ram_start ; /* FIFO start address */
141 u_short rbc_ram_end ; /* FIFO size */
142 u_short rx1_fifo_start ; /* rx queue start address */
143 u_short rx1_fifo_size ; /* rx queue size */
144 u_short rx2_fifo_start ; /* rx queue start address */
145 u_short rx2_fifo_size ; /* rx queue size */
146 u_short tx_s_start ; /* sync queue start address */
147 u_short tx_s_size ; /* sync queue size */
148 u_short tx_a0_start ; /* async queue A0 start address */
149 u_short tx_a0_size ; /* async queue A0 size */
150 u_short fifo_config_mode ; /* FIFO configuration mode */
151} ;
152
153#define FM_ADDRX (FM_ADDET|FM_EXGPA0|FM_EXGPA1)
154
155struct s_smt_fp {
156 u_short mdr2init ; /* mode register 2 init value */
157 u_short mdr3init ; /* mode register 3 init value */
158 u_short frselreg_init ; /* frame selection register init val */
159 u_short rx_mode ; /* address mode broad/multi/promisc */
160 u_short nsa_mode ;
161 u_short rx_prom ;
162 u_short exgpa ;
163
164 struct err_st err_stats ; /* error statistics */
165
166 /*
167 * MAC buffers
168 */
169 struct fddi_mac_sf { /* special frame build buffer */
170 u_char mac_fc ;
171 struct fddi_addr mac_dest ;
172 struct fddi_addr mac_source ;
173 u_char mac_info[0x20] ;
174 } mac_sfb ;
175
176
177 /*
178 * queues
179 */
180#define QUEUE_S 0
181#define QUEUE_A0 1
182#define QUEUE_R1 0
183#define QUEUE_R2 1
184#define USED_QUEUES 2
185
186 /*
187 * queue pointers; points to the queue dependent variables
188 */
189 struct s_smt_tx_queue *tx[USED_QUEUES] ;
190 struct s_smt_rx_queue *rx[USED_QUEUES] ;
191
192 /*
193 * queue dependent variables
194 */
195 struct s_smt_tx_queue tx_q[USED_QUEUES] ;
196 struct s_smt_rx_queue rx_q[USED_QUEUES] ;
197
198 /*
199 * FIFO configuration struct
200 */
201 struct s_smt_fifo_conf fifo ;
202
203 /* last formac status */
204 u_short s2u ;
205 u_short s2l ;
206
207 /* calculated FORMAC+ reg.addr. */
208 HW_PTR fm_st1u ;
209 HW_PTR fm_st1l ;
210 HW_PTR fm_st2u ;
211 HW_PTR fm_st2l ;
212 HW_PTR fm_st3u ;
213 HW_PTR fm_st3l ;
214
215
216 /*
217 * multicast table
218 */
219#define FPMAX_MULTICAST 32
220#define SMT_MAX_MULTI 4
221 struct {
222 struct s_fpmc {
223 struct fddi_addr a ; /* mc address */
224 u_char n ; /* usage counter */
225 u_char perm ; /* flag: permanent */
226 } table[FPMAX_MULTICAST] ;
227 } mc ;
228 struct fddi_addr group_addr ;
229 u_long func_addr ; /* functional address */
230 int smt_slots_used ; /* count of table entries for the SMT */
231 int os_slots_used ; /* count of table entries */
232 /* used by the os-specific module */
233} ;
234
235/*
236 * modes for mac_set_rx_mode()
237 */
238#define RX_ENABLE_ALLMULTI 1 /* enable all multicasts */
239#define RX_DISABLE_ALLMULTI 2 /* disable "enable all multicasts" */
240#define RX_ENABLE_PROMISC 3 /* enable promiscuous */
241#define RX_DISABLE_PROMISC 4 /* disable promiscuous */
242#define RX_ENABLE_NSA 5 /* enable reception of NSA frames */
243#define RX_DISABLE_NSA 6 /* disable reception of NSA frames */
244
245
246/*
247 * support for byte reversal in AIX
248 * (descriptors and pointers must be byte reversed in memory
249 * CPU is big endian; M-Channel is little endian)
250 */
251#ifdef AIX
252#define MDR_REV
253#define AIX_REVERSE(x) ((((x)<<24L)&0xff000000L) + \
254 (((x)<< 8L)&0x00ff0000L) + \
255 (((x)>> 8L)&0x0000ff00L) + \
256 (((x)>>24L)&0x000000ffL))
257#else
258#ifndef AIX_REVERSE
259#define AIX_REVERSE(x) (x)
260#endif
261#endif
262
263#ifdef MDR_REV
264#define MDR_REVERSE(x) ((((x)<<24L)&0xff000000L) + \
265 (((x)<< 8L)&0x00ff0000L) + \
266 (((x)>> 8L)&0x0000ff00L) + \
267 (((x)>>24L)&0x000000ffL))
268#else
269#ifndef MDR_REVERSE
270#define MDR_REVERSE(x) (x)
271#endif
272#endif
273
274#endif