1 /*
2 * lanstreamer.h -- driver for the IBM Auto LANStreamer PCI Adapter
3 *
4 * Written By: Mike Sullivan, IBM Corporation
5 *
6 * Copyright (C) 1999 IBM Corporation
7 *
8 * Linux driver for IBM PCI tokenring cards based on the LanStreamer MPC
9 * chipset.
10 *
11 * This driver is based on the olympic driver for IBM PCI TokenRing cards (Pit/Pit-Phy/Olympic
12 * chipsets) written by:
13 * 1999 Peter De Schrijver All Rights Reserved
14 * 1999 Mike Phillips (phillim@amtrak.com)
15 *
16 * Base Driver Skeleton:
17 * Written 1993-94 by Donald Becker.
18 *
19 * Copyright 1993 United States Government as represented by the
20 * Director, National Security Agency.
21 *
22 * This program is free software; you can redistribute it and/or modify
23 * it under the terms of the GNU General Public License as published by
24 * the Free Software Foundation; either version 2 of the License, or
25 * (at your option) any later version.
26 *
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * NO WARRANTY
33 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
34 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
35 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
36 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
37 * solely responsible for determining the appropriateness of using and
38 * distributing the Program and assumes all risks associated with its
39 * exercise of rights under this Agreement, including but not limited to
40 * the risks and costs of program errors, damage to or loss of data,
41 * programs or equipment, and unavailability or interruption of operations.
42 *
43 * DISCLAIMER OF LIABILITY
44 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
45 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
47 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
48 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
49 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
50 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
51 *
52 * You should have received a copy of the GNU General Public License
53 * along with this program; if not, write to the Free Software
54 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
55 *
56 *
57 * 12/10/99 - Alpha Release 0.1.0
58 * First release to the public
59 * 08/15/01 - Added ioctl() definitions and others - Kent Yoder <yoder1@us.ibm.com>
60 *
61 */
62
63 #include <linux/version.h>
64
65 #if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
66 #include <asm/ioctl.h>
67 #define IOCTL_PRINT_RX_BUFS SIOCDEVPRIVATE
68 #define IOCTL_PRINT_TX_BUFS SIOCDEVPRIVATE+1
69 #define IOCTL_RX_CMD SIOCDEVPRIVATE+2
70 #define IOCTL_TX_CMD SIOCDEVPRIVATE+3
71 #define IOCTL_PRINT_REGISTERS SIOCDEVPRIVATE+4
72 #define IOCTL_PRINT_BDAS SIOCDEVPRIVATE+5
73 #define IOCTL_SPIN_LOCK_TEST SIOCDEVPRIVATE+6
74 #define IOCTL_SISR_MASK SIOCDEVPRIVATE+7
75 #endif
76
77 /* MAX_INTR - the maximum number of times we can loop
78 * inside the interrupt function before returning
79 * control to the OS (maximum value is 256)
80 */
81 #define MAX_INTR 5
82
83 #define CLS 0x0C
84 #define MLR 0x86
85 #define LTR 0x0D
86
87 #define BCTL 0x60
88 #define BCTL_SOFTRESET (1<<15)
89 #define BCTL_RX_FIFO_8 (1<<1)
90 #define BCTL_TX_FIFO_8 (1<<3)
91
92 #define GPR 0x4a
93 #define GPR_AUTOSENSE (1<<2)
94 #define GPR_16MBPS (1<<3)
95
96 #define LISR 0x10
97 #define LISR_SUM 0x12
98 #define LISR_RUM 0x14
99
100 #define LISR_LIE (1<<15)
101 #define LISR_SLIM (1<<13)
102 #define LISR_SLI (1<<12)
103 #define LISR_BPEI (1<<9)
104 #define LISR_BPE (1<<8)
105 #define LISR_SRB_CMD (1<<5)
106 #define LISR_ASB_REPLY (1<<4)
107 #define LISR_ASB_FREE_REQ (1<<2)
108 #define LISR_ARB_FREE (1<<1)
109 #define LISR_TRB_FRAME (1<<0)
110
111 #define SISR 0x16
112 #define SISR_SUM 0x18
113 #define SISR_RUM 0x1A
114 #define SISR_MASK 0x54
115 #define SISR_MASK_SUM 0x56
116 #define SISR_MASK_RUM 0x58
117
118 #define SISR_MI (1<<15)
119 #define SISR_SERR_ERR (1<<14)
120 #define SISR_TIMER (1<<11)
121 #define SISR_LAP_PAR_ERR (1<<10)
122 #define SISR_LAP_ACC_ERR (1<<9)
123 #define SISR_PAR_ERR (1<<8)
124 #define SISR_ADAPTER_CHECK (1<<6)
125 #define SISR_SRB_REPLY (1<<5)
126 #define SISR_ASB_FREE (1<<4)
127 #define SISR_ARB_CMD (1<<3)
128 #define SISR_TRB_REPLY (1<<2)
129
130 #define MISR_RUM 0x5A
131 #define MISR_MASK 0x5C
132 #define MISR_MASK_RUM 0x5E
133
134 #define MISR_TX2_IDLE (1<<15)
135 #define MISR_TX2_NO_STATUS (1<<14)
136 #define MISR_TX2_HALT (1<<13)
137 #define MISR_TX2_EOF (1<<12)
138 #define MISR_TX1_IDLE (1<<11)
139 #define MISR_TX1_NO_STATUS (1<<10)
140 #define MISR_TX1_HALT (1<<9)
141 #define MISR_TX1_EOF (1<<8)
142 #define MISR_RX_NOBUF (1<<5)
143 #define MISR_RX_EOB (1<<4)
144 #define MISR_RX_NO_STATUS (1<<2)
145 #define MISR_RX_HALT (1<<1)
146 #define MISR_RX_EOF (1<<0)
147
148 #define LAPA 0x62
149 #define LAPE 0x64
150 #define LAPD 0x66
151 #define LAPDINC 0x68
152 #define LAPWWO 0x6A
153 #define LAPWWC 0x6C
154 #define LAPCTL 0x6E
155
156 #define TIMER 0x4E4
157
158 #define BMCTL_SUM 0x50
159 #define BMCTL_RUM 0x52
160 #define BMCTL_TX1_DIS (1<<14)
161 #define BMCTL_TX2_DIS (1<<10)
162 #define BMCTL_RX_DIS (1<<6)
163 #define BMCTL_RX_ENABLED (1<<5)
164
165 #define RXLBDA 0x90
166 #define RXBDA 0x94
167 #define RXSTAT 0x98
168 #define RXDBA 0x9C
169
170 #define TX1LFDA 0xA0
171 #define TX1FDA 0xA4
172 #define TX1STAT 0xA8
173 #define TX1DBA 0xAC
174 #define TX2LFDA 0xB0
175 #define TX2FDA 0xB4
176 #define TX2STAT 0xB8
177 #define TX2DBA 0xBC
178
179 #define STREAMER_IO_SPACE 256
180
181 #define SRB_COMMAND_SIZE 50
182
183 #define STREAMER_MAX_ADAPTERS 8 /* 0x08 __MODULE_STRING can't hand 0xnn */
184
185 /* Defines for LAN STATUS CHANGE reports */
186 #define LSC_SIG_LOSS 0x8000
187 #define LSC_HARD_ERR 0x4000
188 #define LSC_SOFT_ERR 0x2000
189 #define LSC_TRAN_BCN 0x1000
190 #define LSC_LWF 0x0800
191 #define LSC_ARW 0x0400
192 #define LSC_FPE 0x0200
193 #define LSC_RR 0x0100
194 #define LSC_CO 0x0080
195 #define LSC_SS 0x0040
196 #define LSC_RING_REC 0x0020
197 #define LSC_SR_CO 0x0010
198 #define LSC_FDX_MODE 0x0004
199
200 /* Defines for OPEN ADAPTER command */
201
202 #define OPEN_ADAPTER_EXT_WRAP (1<<15)
203 #define OPEN_ADAPTER_DIS_HARDEE (1<<14)
204 #define OPEN_ADAPTER_DIS_SOFTERR (1<<13)
205 #define OPEN_ADAPTER_PASS_ADC_MAC (1<<12)
206 #define OPEN_ADAPTER_PASS_ATT_MAC (1<<11)
207 #define OPEN_ADAPTER_ENABLE_EC (1<<10)
208 #define OPEN_ADAPTER_CONTENDER (1<<8)
209 #define OPEN_ADAPTER_PASS_BEACON (1<<7)
210 #define OPEN_ADAPTER_ENABLE_FDX (1<<6)
211 #define OPEN_ADAPTER_ENABLE_RPL (1<<5)
212 #define OPEN_ADAPTER_INHIBIT_ETR (1<<4)
213 #define OPEN_ADAPTER_INTERNAL_WRAP (1<<3)
214
215
216 /* Defines for SRB Commands */
217 #define SRB_CLOSE_ADAPTER 0x04
218 #define SRB_CONFIGURE_BRIDGE 0x0c
219 #define SRB_CONFIGURE_HP_CHANNEL 0x13
220 #define SRB_MODIFY_BRIDGE_PARMS 0x15
221 #define SRB_MODIFY_OPEN_OPTIONS 0x01
222 #define SRB_MODIFY_RECEIVE_OPTIONS 0x17
223 #define SRB_NO_OPERATION 0x00
224 #define SRB_OPEN_ADAPTER 0x03
225 #define SRB_READ_LOG 0x08
226 #define SRB_READ_SR_COUNTERS 0x16
227 #define SRB_RESET_GROUP_ADDRESS 0x02
228 #define SRB_RESET_TARGET_SEGMETN 0x14
229 #define SRB_SAVE_CONFIGURATION 0x1b
230 #define SRB_SET_BRIDGE_PARMS 0x09
231 #define SRB_SET_FUNC_ADDRESS 0x07
232 #define SRB_SET_GROUP_ADDRESS 0x06
233 #define SRB_SET_TARGET_SEGMENT 0x05
234
235 /* Clear return code */
236 #define STREAMER_CLEAR_RET_CODE 0xfe
237
238 /* ARB Commands */
239 #define ARB_RECEIVE_DATA 0x81
240 #define ARB_LAN_CHANGE_STATUS 0x84
241
242 /* ASB Response commands */
243 #define ASB_RECEIVE_DATA 0x81
244
245
246 /* Streamer defaults for buffers */
247
248 #define STREAMER_RX_RING_SIZE 16 /* should be a power of 2 */
249 /* Setting the number of TX descriptors to 1 is a workaround for an
250 * undocumented hardware problem with the lanstreamer board. Setting
251 * this to something higher may slightly increase the throughput you
252 * can get from the card, but at the risk of locking up the box. -
253 * <yoder1@us.ibm.com>
254 */
255 #define STREAMER_TX_RING_SIZE 1 /* should be a power of 2 */
256
257 #define PKT_BUF_SZ 4096 /* Default packet size */
258
259 /* Streamer data structures */
260
261 struct streamer_tx_desc {
262 __u32 forward;
263 __u32 status;
264 __u32 bufcnt_framelen;
265 __u32 buffer;
266 __u32 buflen;
267 __u32 rsvd1;
268 __u32 rsvd2;
269 __u32 rsvd3;
270 };
271
272 struct streamer_rx_desc {
273 __u32 forward;
274 __u32 status;
275 __u32 buffer;
276 __u32 framelen_buflen;
277 };
278
279 struct mac_receive_buffer {
280 __u16 next;
281 __u8 padding;
282 __u8 frame_status;
283 __u16 buffer_length;
284 __u8 frame_data;
285 };
286
287 struct streamer_private {
288
289 __u16 srb;
290 __u16 trb;
291 __u16 arb;
292 __u16 asb;
293
294 struct streamer_private *next;
295 struct pci_dev *pci_dev;
296 __u8 __iomem *streamer_mmio;
297 char *streamer_card_name;
298
299 spinlock_t streamer_lock;
300
301 volatile int srb_queued; /* True if an SRB is still posted */
302 wait_queue_head_t srb_wait;
303
304 volatile int asb_queued; /* True if an ASB is posted */
305
306 volatile int trb_queued; /* True if a TRB is posted */
307 wait_queue_head_t trb_wait;
308
309 struct streamer_rx_desc *streamer_rx_ring;
310 struct streamer_tx_desc *streamer_tx_ring;
311 struct sk_buff *tx_ring_skb[STREAMER_TX_RING_SIZE],
312 *rx_ring_skb[STREAMER_RX_RING_SIZE];
313 int tx_ring_free, tx_ring_last_status, rx_ring_last_received,
314 free_tx_ring_entries;
315
316 struct net_device_stats streamer_stats;
317 __u16 streamer_lan_status;
318 __u8 streamer_ring_speed;
319 __u16 pkt_buf_sz;
320 __u8 streamer_receive_options, streamer_copy_all_options,
321 streamer_message_level;
322 __u16 streamer_addr_table_addr, streamer_parms_addr;
323 __u16 mac_rx_buffer;
324 __u8 streamer_laa[6];
325 };
326
327 struct streamer_adapter_addr_table {
328
329 __u8 node_addr[6];
330 __u8 reserved[4];
331 __u8 func_addr[4];
332 };
333
334 struct streamer_parameters_table {
335
336 __u8 phys_addr[4];
337 __u8 up_node_addr[6];
338 __u8 up_phys_addr[4];
339 __u8 poll_addr[6];
340 __u16 reserved;
341 __u16 acc_priority;
342 __u16 auth_source_class;
343 __u16 att_code;
344 __u8 source_addr[6];
345 __u16 beacon_type;
346 __u16 major_vector;
347 __u16 lan_status;
348 __u16 soft_error_time;
349 __u16 reserved1;
350 __u16 local_ring;
351 __u16 mon_error;
352 __u16 beacon_transmit;
353 __u16 beacon_receive;
354 __u16 frame_correl;
355 __u8 beacon_naun[6];
356 __u32 reserved2;
357 __u8 beacon_phys[4];
358 };
359
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