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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/* MAX_INTR - the maximum number of times we can loop
64 * inside the interrupt function before returning
65 * control to the OS (maximum value is 256)
66 */
67#define MAX_INTR 5
68
69#define CLS 0x0C
70#define MLR 0x86
71#define LTR 0x0D
72
73#define BCTL 0x60
74#define BCTL_SOFTRESET (1<<15)
75#define BCTL_RX_FIFO_8 (1<<1)
76#define BCTL_TX_FIFO_8 (1<<3)
77
78#define GPR 0x4a
79#define GPR_AUTOSENSE (1<<2)
80#define GPR_16MBPS (1<<3)
81
82#define LISR 0x10
83#define LISR_SUM 0x12
84#define LISR_RUM 0x14
85
86#define LISR_LIE (1<<15)
87#define LISR_SLIM (1<<13)
88#define LISR_SLI (1<<12)
89#define LISR_BPEI (1<<9)
90#define LISR_BPE (1<<8)
91#define LISR_SRB_CMD (1<<5)
92#define LISR_ASB_REPLY (1<<4)
93#define LISR_ASB_FREE_REQ (1<<2)
94#define LISR_ARB_FREE (1<<1)
95#define LISR_TRB_FRAME (1<<0)
96
97#define SISR 0x16
98#define SISR_SUM 0x18
99#define SISR_RUM 0x1A
100#define SISR_MASK 0x54
101#define SISR_MASK_SUM 0x56
102#define SISR_MASK_RUM 0x58
103
104#define SISR_MI (1<<15)
105#define SISR_SERR_ERR (1<<14)
106#define SISR_TIMER (1<<11)
107#define SISR_LAP_PAR_ERR (1<<10)
108#define SISR_LAP_ACC_ERR (1<<9)
109#define SISR_PAR_ERR (1<<8)
110#define SISR_ADAPTER_CHECK (1<<6)
111#define SISR_SRB_REPLY (1<<5)
112#define SISR_ASB_FREE (1<<4)
113#define SISR_ARB_CMD (1<<3)
114#define SISR_TRB_REPLY (1<<2)
115
116#define MISR_RUM 0x5A
117#define MISR_MASK 0x5C
118#define MISR_MASK_RUM 0x5E
119
120#define MISR_TX2_IDLE (1<<15)
121#define MISR_TX2_NO_STATUS (1<<14)
122#define MISR_TX2_HALT (1<<13)
123#define MISR_TX2_EOF (1<<12)
124#define MISR_TX1_IDLE (1<<11)
125#define MISR_TX1_NO_STATUS (1<<10)
126#define MISR_TX1_HALT (1<<9)
127#define MISR_TX1_EOF (1<<8)
128#define MISR_RX_NOBUF (1<<5)
129#define MISR_RX_EOB (1<<4)
130#define MISR_RX_NO_STATUS (1<<2)
131#define MISR_RX_HALT (1<<1)
132#define MISR_RX_EOF (1<<0)
133
134#define LAPA 0x62
135#define LAPE 0x64
136#define LAPD 0x66
137#define LAPDINC 0x68
138#define LAPWWO 0x6A
139#define LAPWWC 0x6C
140#define LAPCTL 0x6E
141
142#define TIMER 0x4E4
143
144#define BMCTL_SUM 0x50
145#define BMCTL_RUM 0x52
146#define BMCTL_TX1_DIS (1<<14)
147#define BMCTL_TX2_DIS (1<<10)
148#define BMCTL_RX_DIS (1<<6)
149#define BMCTL_RX_ENABLED (1<<5)
150
151#define RXLBDA 0x90
152#define RXBDA 0x94
153#define RXSTAT 0x98
154#define RXDBA 0x9C
155
156#define TX1LFDA 0xA0
157#define TX1FDA 0xA4
158#define TX1STAT 0xA8
159#define TX1DBA 0xAC
160#define TX2LFDA 0xB0
161#define TX2FDA 0xB4
162#define TX2STAT 0xB8
163#define TX2DBA 0xBC
164
165#define STREAMER_IO_SPACE 256
166
167#define SRB_COMMAND_SIZE 50
168
169#define STREAMER_MAX_ADAPTERS 8 /* 0x08 __MODULE_STRING can't hand 0xnn */
170
171/* Defines for LAN STATUS CHANGE reports */
172#define LSC_SIG_LOSS 0x8000
173#define LSC_HARD_ERR 0x4000
174#define LSC_SOFT_ERR 0x2000
175#define LSC_TRAN_BCN 0x1000
176#define LSC_LWF 0x0800
177#define LSC_ARW 0x0400
178#define LSC_FPE 0x0200
179#define LSC_RR 0x0100
180#define LSC_CO 0x0080
181#define LSC_SS 0x0040
182#define LSC_RING_REC 0x0020
183#define LSC_SR_CO 0x0010
184#define LSC_FDX_MODE 0x0004
185
186/* Defines for OPEN ADAPTER command */
187
188#define OPEN_ADAPTER_EXT_WRAP (1<<15)
189#define OPEN_ADAPTER_DIS_HARDEE (1<<14)
190#define OPEN_ADAPTER_DIS_SOFTERR (1<<13)
191#define OPEN_ADAPTER_PASS_ADC_MAC (1<<12)
192#define OPEN_ADAPTER_PASS_ATT_MAC (1<<11)
193#define OPEN_ADAPTER_ENABLE_EC (1<<10)
194#define OPEN_ADAPTER_CONTENDER (1<<8)
195#define OPEN_ADAPTER_PASS_BEACON (1<<7)
196#define OPEN_ADAPTER_ENABLE_FDX (1<<6)
197#define OPEN_ADAPTER_ENABLE_RPL (1<<5)
198#define OPEN_ADAPTER_INHIBIT_ETR (1<<4)
199#define OPEN_ADAPTER_INTERNAL_WRAP (1<<3)
200
201
202/* Defines for SRB Commands */
203#define SRB_CLOSE_ADAPTER 0x04
204#define SRB_CONFIGURE_BRIDGE 0x0c
205#define SRB_CONFIGURE_HP_CHANNEL 0x13
206#define SRB_MODIFY_BRIDGE_PARMS 0x15
207#define SRB_MODIFY_OPEN_OPTIONS 0x01
208#define SRB_MODIFY_RECEIVE_OPTIONS 0x17
209#define SRB_NO_OPERATION 0x00
210#define SRB_OPEN_ADAPTER 0x03
211#define SRB_READ_LOG 0x08
212#define SRB_READ_SR_COUNTERS 0x16
213#define SRB_RESET_GROUP_ADDRESS 0x02
214#define SRB_RESET_TARGET_SEGMETN 0x14
215#define SRB_SAVE_CONFIGURATION 0x1b
216#define SRB_SET_BRIDGE_PARMS 0x09
217#define SRB_SET_FUNC_ADDRESS 0x07
218#define SRB_SET_GROUP_ADDRESS 0x06
219#define SRB_SET_TARGET_SEGMENT 0x05
220
221/* Clear return code */
222#define STREAMER_CLEAR_RET_CODE 0xfe
223
224/* ARB Commands */
225#define ARB_RECEIVE_DATA 0x81
226#define ARB_LAN_CHANGE_STATUS 0x84
227
228/* ASB Response commands */
229#define ASB_RECEIVE_DATA 0x81
230
231
232/* Streamer defaults for buffers */
233
234#define STREAMER_RX_RING_SIZE 16 /* should be a power of 2 */
235/* Setting the number of TX descriptors to 1 is a workaround for an
236 * undocumented hardware problem with the lanstreamer board. Setting
237 * this to something higher may slightly increase the throughput you
238 * can get from the card, but at the risk of locking up the box. -
239 * <yoder1@us.ibm.com>
240 */
241#define STREAMER_TX_RING_SIZE 1 /* should be a power of 2 */
242
243#define PKT_BUF_SZ 4096 /* Default packet size */
244
245/* Streamer data structures */
246
247struct streamer_tx_desc {
248 __u32 forward;
249 __u32 status;
250 __u32 bufcnt_framelen;
251 __u32 buffer;
252 __u32 buflen;
253 __u32 rsvd1;
254 __u32 rsvd2;
255 __u32 rsvd3;
256};
257
258struct streamer_rx_desc {
259 __u32 forward;
260 __u32 status;
261 __u32 buffer;
262 __u32 framelen_buflen;
263};
264
265struct mac_receive_buffer {
266 __u16 next;
267 __u8 padding;
268 __u8 frame_status;
269 __u16 buffer_length;
270 __u8 frame_data;
271};
272
273struct streamer_private {
274
275 __u16 srb;
276 __u16 trb;
277 __u16 arb;
278 __u16 asb;
279
280 struct streamer_private *next;
281 struct pci_dev *pci_dev;
282 __u8 __iomem *streamer_mmio;
283 char *streamer_card_name;
284
285 spinlock_t streamer_lock;
286
287 volatile int srb_queued; /* True if an SRB is still posted */
288 wait_queue_head_t srb_wait;
289
290 volatile int asb_queued; /* True if an ASB is posted */
291
292 volatile int trb_queued; /* True if a TRB is posted */
293 wait_queue_head_t trb_wait;
294
295 struct streamer_rx_desc *streamer_rx_ring;
296 struct streamer_tx_desc *streamer_tx_ring;
297 struct sk_buff *tx_ring_skb[STREAMER_TX_RING_SIZE],
298 *rx_ring_skb[STREAMER_RX_RING_SIZE];
299 int tx_ring_free, tx_ring_last_status, rx_ring_last_received,
300 free_tx_ring_entries;
301
302 __u16 streamer_lan_status;
303 __u8 streamer_ring_speed;
304 __u16 pkt_buf_sz;
305 __u8 streamer_receive_options, streamer_copy_all_options,
306 streamer_message_level;
307 __u16 streamer_addr_table_addr, streamer_parms_addr;
308 __u16 mac_rx_buffer;
309 __u8 streamer_laa[6];
310};
311
312struct streamer_adapter_addr_table {
313
314 __u8 node_addr[6];
315 __u8 reserved[4];
316 __u8 func_addr[4];
317};
318
319struct streamer_parameters_table {
320
321 __u8 phys_addr[4];
322 __u8 up_node_addr[6];
323 __u8 up_phys_addr[4];
324 __u8 poll_addr[6];
325 __u16 reserved;
326 __u16 acc_priority;
327 __u16 auth_source_class;
328 __u16 att_code;
329 __u8 source_addr[6];
330 __u16 beacon_type;
331 __u16 major_vector;
332 __u16 lan_status;
333 __u16 soft_error_time;
334 __u16 reserved1;
335 __u16 local_ring;
336 __u16 mon_error;
337 __u16 beacon_transmit;
338 __u16 beacon_receive;
339 __u16 frame_correl;
340 __u8 beacon_naun[6];
341 __u32 reserved2;
342 __u8 beacon_phys[4];
343};