ebda61bc4c2f47f8ac6758e328ba4288ee9d9235
[linux-2.6.git] / drivers / net / tokenring / smctr.c
1 /*
2  *  smctr.c: A network driver for the SMC Token Ring Adapters.
3  *
4  *  Written by Jay Schulist <jschlst@samba.org>
5  *
6  *  This software may be used and distributed according to the terms
7  *  of the GNU General Public License, incorporated herein by reference.
8  *
9  *  This device driver works with the following SMC adapters:
10  *      - SMC TokenCard Elite   (8115T, chips 825/584)
11  *      - SMC TokenCard Elite/A MCA (8115T/A, chips 825/594)
12  *
13  *  Source(s):
14  *      - SMC TokenCard SDK.
15  *
16  *  Maintainer(s):
17  *    JS        Jay Schulist <jschlst@samba.org>
18  *
19  * Changes:
20  *    07102000          JS      Fixed a timing problem in smctr_wait_cmd();
21  *                              Also added a bit more discriptive error msgs.
22  *    07122000          JS      Fixed problem with detecting a card with
23  *                              module io/irq/mem specified.
24  *
25  *  To do:
26  *    1. Multicast support.
27  *
28  *  Initial 2.5 cleanup Alan Cox <alan@lxorguk.ukuu.org.uk>  2002/10/28
29  */
30
31 #include <linux/module.h>
32 #include <linux/kernel.h>
33 #include <linux/types.h>
34 #include <linux/fcntl.h>
35 #include <linux/interrupt.h>
36 #include <linux/ptrace.h>
37 #include <linux/ioport.h>
38 #include <linux/in.h>
39 #include <linux/slab.h>
40 #include <linux/string.h>
41 #include <linux/time.h>
42 #include <linux/errno.h>
43 #include <linux/init.h>
44 #include <linux/mca-legacy.h>
45 #include <linux/delay.h>
46 #include <linux/netdevice.h>
47 #include <linux/etherdevice.h>
48 #include <linux/skbuff.h>
49 #include <linux/trdevice.h>
50 #include <linux/bitops.h>
51 #include <linux/firmware.h>
52
53 #include <asm/system.h>
54 #include <asm/io.h>
55 #include <asm/dma.h>
56 #include <asm/irq.h>
57
58 #if BITS_PER_LONG == 64
59 #error FIXME: driver does not support 64-bit platforms
60 #endif
61
62 #include "smctr.h"               /* Our Stuff */
63
64 static const char version[] __initdata =
65         KERN_INFO "smctr.c: v1.4 7/12/00 by jschlst@samba.org\n";
66 static const char cardname[] = "smctr";
67
68
69 #define SMCTR_IO_EXTENT   20
70
71 #ifdef CONFIG_MCA_LEGACY
72 static unsigned int smctr_posid = 0x6ec6;
73 #endif
74
75 static int ringspeed;
76
77 /* SMC Name of the Adapter. */
78 static char smctr_name[] = "SMC TokenCard";
79 static char *smctr_model = "Unknown";
80
81 /* Use 0 for production, 1 for verification, 2 for debug, and
82  * 3 for very verbose debug.
83  */
84 #ifndef SMCTR_DEBUG
85 #define SMCTR_DEBUG 1
86 #endif
87 static unsigned int smctr_debug = SMCTR_DEBUG;
88
89 /* smctr.c prototypes and functions are arranged alphabeticly 
90  * for clearity, maintainability and pure old fashion fun. 
91  */
92 /* A */
93 static int smctr_alloc_shared_memory(struct net_device *dev);
94
95 /* B */
96 static int smctr_bypass_state(struct net_device *dev);
97
98 /* C */
99 static int smctr_checksum_firmware(struct net_device *dev);
100 static int __init smctr_chk_isa(struct net_device *dev);
101 static int smctr_chg_rx_mask(struct net_device *dev);
102 static int smctr_clear_int(struct net_device *dev);
103 static int smctr_clear_trc_reset(int ioaddr);
104 static int smctr_close(struct net_device *dev);
105
106 /* D */
107 static int smctr_decode_firmware(struct net_device *dev,
108                                  const struct firmware *fw);
109 static int smctr_disable_16bit(struct net_device *dev);
110 static int smctr_disable_adapter_ctrl_store(struct net_device *dev);
111 static int smctr_disable_bic_int(struct net_device *dev);
112
113 /* E */
114 static int smctr_enable_16bit(struct net_device *dev);
115 static int smctr_enable_adapter_ctrl_store(struct net_device *dev);
116 static int smctr_enable_adapter_ram(struct net_device *dev);
117 static int smctr_enable_bic_int(struct net_device *dev);
118
119 /* G */
120 static int __init smctr_get_boardid(struct net_device *dev, int mca);
121 static int smctr_get_group_address(struct net_device *dev);
122 static int smctr_get_functional_address(struct net_device *dev);
123 static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev);
124 static int smctr_get_physical_drop_number(struct net_device *dev);
125 static __u8 *smctr_get_rx_pointer(struct net_device *dev, short queue);
126 static int smctr_get_station_id(struct net_device *dev);
127 static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue,
128         __u16 bytes_count);
129 static int smctr_get_upstream_neighbor_addr(struct net_device *dev);
130
131 /* H */
132 static int smctr_hardware_send_packet(struct net_device *dev,
133         struct net_local *tp);
134 /* I */
135 static int smctr_init_acbs(struct net_device *dev);
136 static int smctr_init_adapter(struct net_device *dev);
137 static int smctr_init_card_real(struct net_device *dev);
138 static int smctr_init_rx_bdbs(struct net_device *dev);
139 static int smctr_init_rx_fcbs(struct net_device *dev);
140 static int smctr_init_shared_memory(struct net_device *dev);
141 static int smctr_init_tx_bdbs(struct net_device *dev);
142 static int smctr_init_tx_fcbs(struct net_device *dev);
143 static int smctr_internal_self_test(struct net_device *dev);
144 static irqreturn_t smctr_interrupt(int irq, void *dev_id);
145 static int smctr_issue_enable_int_cmd(struct net_device *dev,
146         __u16 interrupt_enable_mask);
147 static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code,
148         __u16 ibits);
149 static int smctr_issue_init_timers_cmd(struct net_device *dev);
150 static int smctr_issue_init_txrx_cmd(struct net_device *dev);
151 static int smctr_issue_insert_cmd(struct net_device *dev);
152 static int smctr_issue_read_ring_status_cmd(struct net_device *dev);
153 static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt);
154 static int smctr_issue_remove_cmd(struct net_device *dev);
155 static int smctr_issue_resume_acb_cmd(struct net_device *dev);
156 static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue);
157 static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue);
158 static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue);
159 static int smctr_issue_test_internal_rom_cmd(struct net_device *dev);
160 static int smctr_issue_test_hic_cmd(struct net_device *dev);
161 static int smctr_issue_test_mac_reg_cmd(struct net_device *dev);
162 static int smctr_issue_trc_loopback_cmd(struct net_device *dev);
163 static int smctr_issue_tri_loopback_cmd(struct net_device *dev);
164 static int smctr_issue_write_byte_cmd(struct net_device *dev,
165         short aword_cnt, void *byte);
166 static int smctr_issue_write_word_cmd(struct net_device *dev,
167         short aword_cnt, void *word);
168
169 /* J */
170 static int smctr_join_complete_state(struct net_device *dev);
171
172 /* L */
173 static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev);
174 static int smctr_load_firmware(struct net_device *dev);
175 static int smctr_load_node_addr(struct net_device *dev);
176 static int smctr_lobe_media_test(struct net_device *dev);
177 static int smctr_lobe_media_test_cmd(struct net_device *dev);
178 static int smctr_lobe_media_test_state(struct net_device *dev);
179
180 /* M */
181 static int smctr_make_8025_hdr(struct net_device *dev,
182         MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc);
183 static int smctr_make_access_pri(struct net_device *dev,
184         MAC_SUB_VECTOR *tsv);
185 static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv);
186 static int smctr_make_auth_funct_class(struct net_device *dev,
187         MAC_SUB_VECTOR *tsv);
188 static int smctr_make_corr(struct net_device *dev,
189         MAC_SUB_VECTOR *tsv, __u16 correlator);
190 static int smctr_make_funct_addr(struct net_device *dev,
191         MAC_SUB_VECTOR *tsv);
192 static int smctr_make_group_addr(struct net_device *dev,
193         MAC_SUB_VECTOR *tsv);
194 static int smctr_make_phy_drop_num(struct net_device *dev,
195         MAC_SUB_VECTOR *tsv);
196 static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv);
197 static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv);
198 static int smctr_make_ring_station_status(struct net_device *dev,
199         MAC_SUB_VECTOR *tsv);
200 static int smctr_make_ring_station_version(struct net_device *dev,
201         MAC_SUB_VECTOR *tsv);
202 static int smctr_make_tx_status_code(struct net_device *dev,
203         MAC_SUB_VECTOR *tsv, __u16 tx_fstatus);
204 static int smctr_make_upstream_neighbor_addr(struct net_device *dev,
205         MAC_SUB_VECTOR *tsv);
206 static int smctr_make_wrap_data(struct net_device *dev,
207         MAC_SUB_VECTOR *tsv);
208
209 /* O */
210 static int smctr_open(struct net_device *dev);
211 static int smctr_open_tr(struct net_device *dev);
212
213 /* P */
214 struct net_device *smctr_probe(int unit);
215 static int __init smctr_probe1(struct net_device *dev, int ioaddr);
216 static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
217         struct net_device *dev, __u16 rx_status);
218
219 /* R */
220 static int smctr_ram_memory_test(struct net_device *dev);
221 static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf,
222         __u16 *correlator);
223 static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf,
224         __u16 *correlator);
225 static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf);
226 static int smctr_rcv_rq_addr_state_attch(struct net_device *dev,
227         MAC_HEADER *rmf, __u16 *correlator);
228 static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf,
229         __u16 *correlator);
230 static int smctr_reset_adapter(struct net_device *dev);
231 static int smctr_restart_tx_chain(struct net_device *dev, short queue);
232 static int smctr_ring_status_chg(struct net_device *dev);
233 static int smctr_rx_frame(struct net_device *dev);
234
235 /* S */
236 static int smctr_send_dat(struct net_device *dev);
237 static netdev_tx_t smctr_send_packet(struct sk_buff *skb,
238                                            struct net_device *dev);
239 static int smctr_send_lobe_media_test(struct net_device *dev);
240 static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf,
241         __u16 correlator);
242 static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf,
243         __u16 correlator);
244 static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf,
245         __u16 correlator);
246 static int smctr_send_rpt_tx_forward(struct net_device *dev,
247         MAC_HEADER *rmf, __u16 tx_fstatus);
248 static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf,
249         __u16 rcode, __u16 correlator);
250 static int smctr_send_rq_init(struct net_device *dev);
251 static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf,
252         __u16 *tx_fstatus);
253 static int smctr_set_auth_access_pri(struct net_device *dev,
254         MAC_SUB_VECTOR *rsv);
255 static int smctr_set_auth_funct_class(struct net_device *dev,
256         MAC_SUB_VECTOR *rsv);
257 static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv,
258         __u16 *correlator);
259 static int smctr_set_error_timer_value(struct net_device *dev,
260         MAC_SUB_VECTOR *rsv);
261 static int smctr_set_frame_forward(struct net_device *dev,
262         MAC_SUB_VECTOR *rsv, __u8 dc_sc);
263 static int smctr_set_local_ring_num(struct net_device *dev,
264         MAC_SUB_VECTOR *rsv);
265 static unsigned short smctr_set_ctrl_attention(struct net_device *dev);
266 static void smctr_set_multicast_list(struct net_device *dev);
267 static int smctr_set_page(struct net_device *dev, __u8 *buf);
268 static int smctr_set_phy_drop(struct net_device *dev,
269         MAC_SUB_VECTOR *rsv);
270 static int smctr_set_ring_speed(struct net_device *dev);
271 static int smctr_set_rx_look_ahead(struct net_device *dev);
272 static int smctr_set_trc_reset(int ioaddr);
273 static int smctr_setup_single_cmd(struct net_device *dev,
274         __u16 command, __u16 subcommand);
275 static int smctr_setup_single_cmd_w_data(struct net_device *dev,
276         __u16 command, __u16 subcommand);
277 static char *smctr_malloc(struct net_device *dev, __u16 size);
278 static int smctr_status_chg(struct net_device *dev);
279
280 /* T */
281 static void smctr_timeout(struct net_device *dev);
282 static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb,
283         __u16 queue);
284 static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue);
285 static unsigned short smctr_tx_move_frame(struct net_device *dev,
286         struct sk_buff *skb, __u8 *pbuff, unsigned int bytes);
287
288 /* U */
289 static int smctr_update_err_stats(struct net_device *dev);
290 static int smctr_update_rx_chain(struct net_device *dev, __u16 queue);
291 static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb,
292         __u16 queue);
293
294 /* W */
295 static int smctr_wait_cmd(struct net_device *dev);
296 static int smctr_wait_while_cbusy(struct net_device *dev);
297
298 #define TO_256_BYTE_BOUNDRY(X)  (((X + 0xff) & 0xff00) - X)
299 #define TO_PARAGRAPH_BOUNDRY(X) (((X + 0x0f) & 0xfff0) - X)
300 #define PARAGRAPH_BOUNDRY(X)    smctr_malloc(dev, TO_PARAGRAPH_BOUNDRY(X))
301
302 /* Allocate Adapter Shared Memory.
303  * IMPORTANT NOTE: Any changes to this function MUST be mirrored in the
304  * function "get_num_rx_bdbs" below!!!
305  *
306  * Order of memory allocation:
307  *
308  *       0. Initial System Configuration Block Pointer
309  *       1. System Configuration Block
310  *       2. System Control Block
311  *       3. Action Command Block
312  *       4. Interrupt Status Block
313  *
314  *       5. MAC TX FCB'S
315  *       6. NON-MAC TX FCB'S
316  *       7. MAC TX BDB'S
317  *       8. NON-MAC TX BDB'S
318  *       9. MAC RX FCB'S
319  *      10. NON-MAC RX FCB'S
320  *      11. MAC RX BDB'S
321  *      12. NON-MAC RX BDB'S
322  *      13. MAC TX Data Buffer( 1, 256 byte buffer)
323  *      14. MAC RX Data Buffer( 1, 256 byte buffer)
324  *
325  *      15. NON-MAC TX Data Buffer
326  *      16. NON-MAC RX Data Buffer
327  */
328 static int smctr_alloc_shared_memory(struct net_device *dev)
329 {
330         struct net_local *tp = netdev_priv(dev);
331
332         if(smctr_debug > 10)
333                 printk(KERN_DEBUG "%s: smctr_alloc_shared_memory\n", dev->name);
334
335         /* Allocate initial System Control Block pointer.
336          * This pointer is located in the last page, last offset - 4.
337          */
338         tp->iscpb_ptr = (ISCPBlock *)(tp->ram_access + ((__u32)64 * 0x400)
339                 - (long)ISCP_BLOCK_SIZE);
340
341         /* Allocate System Control Blocks. */
342         tp->scgb_ptr = (SCGBlock *)smctr_malloc(dev, sizeof(SCGBlock));
343         PARAGRAPH_BOUNDRY(tp->sh_mem_used);
344
345         tp->sclb_ptr = (SCLBlock *)smctr_malloc(dev, sizeof(SCLBlock));
346         PARAGRAPH_BOUNDRY(tp->sh_mem_used);
347
348         tp->acb_head = (ACBlock *)smctr_malloc(dev,
349                 sizeof(ACBlock)*tp->num_acbs);
350         PARAGRAPH_BOUNDRY(tp->sh_mem_used);
351
352         tp->isb_ptr = (ISBlock *)smctr_malloc(dev, sizeof(ISBlock));
353         PARAGRAPH_BOUNDRY(tp->sh_mem_used);
354
355         tp->misc_command_data = (__u16 *)smctr_malloc(dev, MISC_DATA_SIZE);
356         PARAGRAPH_BOUNDRY(tp->sh_mem_used);
357
358         /* Allocate transmit FCBs. */
359         tp->tx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
360                 sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE]);
361
362         tp->tx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
363                 sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE]);
364
365         tp->tx_fcb_head[BUG_QUEUE] = (FCBlock *)smctr_malloc(dev,
366                 sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE]);
367
368         /* Allocate transmit BDBs. */
369         tp->tx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
370                 sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE]);
371
372         tp->tx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
373                 sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE]);
374
375         tp->tx_bdb_head[BUG_QUEUE] = (BDBlock *)smctr_malloc(dev,
376                 sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE]);
377
378         /* Allocate receive FCBs. */
379         tp->rx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
380                 sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE]);
381
382         tp->rx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
383                 sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE]);
384
385         /* Allocate receive BDBs. */
386         tp->rx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
387                 sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE]);
388
389         tp->rx_bdb_end[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
390
391         tp->rx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
392                 sizeof(BDBlock) * tp->num_rx_bdbs[NON_MAC_QUEUE]);
393
394         tp->rx_bdb_end[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
395
396         /* Allocate MAC transmit buffers.
397          * MAC Tx Buffers doen't have to be on an ODD Boundry.
398          */
399         tp->tx_buff_head[MAC_QUEUE]
400                 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[MAC_QUEUE]);
401         tp->tx_buff_curr[MAC_QUEUE] = tp->tx_buff_head[MAC_QUEUE];
402         tp->tx_buff_end [MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
403
404         /* Allocate BUG transmit buffers. */
405         tp->tx_buff_head[BUG_QUEUE]
406                 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[BUG_QUEUE]);
407         tp->tx_buff_curr[BUG_QUEUE] = tp->tx_buff_head[BUG_QUEUE];
408         tp->tx_buff_end[BUG_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
409
410         /* Allocate MAC receive data buffers.
411          * MAC Rx buffer doesn't have to be on a 256 byte boundary.
412          */
413         tp->rx_buff_head[MAC_QUEUE] = (__u16 *)smctr_malloc(dev,
414                 RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE]);
415         tp->rx_buff_end[MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
416
417         /* Allocate Non-MAC transmit buffers.
418          * ?? For maximum Netware performance, put Tx Buffers on
419          * ODD Boundry and then restore malloc to Even Boundrys.
420          */
421         smctr_malloc(dev, 1L);
422         tp->tx_buff_head[NON_MAC_QUEUE]
423                 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[NON_MAC_QUEUE]);
424         tp->tx_buff_curr[NON_MAC_QUEUE] = tp->tx_buff_head[NON_MAC_QUEUE];
425         tp->tx_buff_end [NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
426         smctr_malloc(dev, 1L);
427
428         /* Allocate Non-MAC receive data buffers.
429          * To guarantee a minimum of 256 contigous memory to
430          * UM_Receive_Packet's lookahead pointer, before a page
431          * change or ring end is encountered, place each rx buffer on
432          * a 256 byte boundary.
433          */
434         smctr_malloc(dev, TO_256_BYTE_BOUNDRY(tp->sh_mem_used));
435         tp->rx_buff_head[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev,
436                 RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[NON_MAC_QUEUE]);
437         tp->rx_buff_end[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
438
439         return (0);
440 }
441
442 /* Enter Bypass state. */
443 static int smctr_bypass_state(struct net_device *dev)
444 {
445         int err;
446
447         if(smctr_debug > 10)
448                 printk(KERN_DEBUG "%s: smctr_bypass_state\n", dev->name);
449
450         err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE, JS_BYPASS_STATE);
451
452         return (err);
453 }
454
455 static int smctr_checksum_firmware(struct net_device *dev)
456 {
457         struct net_local *tp = netdev_priv(dev);
458         __u16 i, checksum = 0;
459
460         if(smctr_debug > 10)
461                 printk(KERN_DEBUG "%s: smctr_checksum_firmware\n", dev->name);
462
463         smctr_enable_adapter_ctrl_store(dev);
464
465         for(i = 0; i < CS_RAM_SIZE; i += 2)
466                 checksum += *((__u16 *)(tp->ram_access + i));
467
468         tp->microcode_version = *(__u16 *)(tp->ram_access
469                 + CS_RAM_VERSION_OFFSET);
470         tp->microcode_version >>= 8;
471
472         smctr_disable_adapter_ctrl_store(dev);
473
474         if(checksum)
475                 return (checksum);
476
477         return (0);
478 }
479
480 static int __init smctr_chk_mca(struct net_device *dev)
481 {
482 #ifdef CONFIG_MCA_LEGACY
483         struct net_local *tp = netdev_priv(dev);
484         int current_slot;
485         __u8 r1, r2, r3, r4, r5;
486
487         current_slot = mca_find_unused_adapter(smctr_posid, 0);
488         if(current_slot == MCA_NOTFOUND)
489                 return (-ENODEV);
490
491         mca_set_adapter_name(current_slot, smctr_name);
492         mca_mark_as_used(current_slot);
493         tp->slot_num = current_slot;
494
495         r1 = mca_read_stored_pos(tp->slot_num, 2);
496         r2 = mca_read_stored_pos(tp->slot_num, 3);
497
498         if(tp->slot_num)
499                 outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num - 1) | CNFG_SLOT_ENABLE_BIT));
500         else
501                 outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num) | CNFG_SLOT_ENABLE_BIT));
502
503         r1 = inb(CNFG_POS_REG1);
504         r2 = inb(CNFG_POS_REG0);
505
506         tp->bic_type = BIC_594_CHIP;
507
508         /* IO */
509         r2 = mca_read_stored_pos(tp->slot_num, 2);
510         r2 &= 0xF0;
511         dev->base_addr = ((__u16)r2 << 8) + (__u16)0x800;
512         request_region(dev->base_addr, SMCTR_IO_EXTENT, smctr_name);
513
514         /* IRQ */
515         r5 = mca_read_stored_pos(tp->slot_num, 5);
516         r5 &= 0xC;
517         switch(r5)
518         {
519                 case 0:
520                         dev->irq = 3;
521                         break;
522
523                 case 0x4:
524                         dev->irq = 4;
525                         break;
526
527                 case 0x8:
528                         dev->irq = 10;
529                         break;
530
531                 default:
532                         dev->irq = 15;
533                         break;
534         }
535         if (request_irq(dev->irq, smctr_interrupt, IRQF_SHARED, smctr_name, dev)) {
536                 release_region(dev->base_addr, SMCTR_IO_EXTENT);
537                 return -ENODEV;
538         }
539
540         /* Get RAM base */
541         r3 = mca_read_stored_pos(tp->slot_num, 3);
542         tp->ram_base = ((__u32)(r3 & 0x7) << 13) + 0x0C0000;
543         if (r3 & 0x8)
544                 tp->ram_base += 0x010000;
545         if (r3 & 0x80)
546                 tp->ram_base += 0xF00000;
547
548         /* Get Ram Size */
549         r3 &= 0x30;
550         r3 >>= 4;
551
552         tp->ram_usable = (__u16)CNFG_SIZE_8KB << r3;
553         tp->ram_size = (__u16)CNFG_SIZE_64KB;
554         tp->board_id |= TOKEN_MEDIA;
555
556         r4 = mca_read_stored_pos(tp->slot_num, 4);
557         tp->rom_base = ((__u32)(r4 & 0x7) << 13) + 0x0C0000;
558         if (r4 & 0x8)
559                 tp->rom_base += 0x010000;
560
561         /* Get ROM size. */
562         r4 >>= 4;
563         switch (r4) {
564                 case 0:
565                         tp->rom_size = CNFG_SIZE_8KB;
566                         break;
567                 case 1:
568                         tp->rom_size = CNFG_SIZE_16KB;
569                         break;
570                 case 2:
571                         tp->rom_size = CNFG_SIZE_32KB;
572                         break;
573                 default:
574                         tp->rom_size = ROM_DISABLE;
575         }
576
577         /* Get Media Type. */
578         r5 = mca_read_stored_pos(tp->slot_num, 5);
579         r5 &= CNFG_MEDIA_TYPE_MASK;
580         switch(r5)
581         {
582                 case (0):
583                         tp->media_type = MEDIA_STP_4;
584                         break;
585
586                 case (1):
587                         tp->media_type = MEDIA_STP_16;
588                         break;
589
590                 case (3):
591                         tp->media_type = MEDIA_UTP_16;
592                         break;
593
594                 default:
595                         tp->media_type = MEDIA_UTP_4;
596                         break;
597         }
598         tp->media_menu = 14;
599
600         r2 = mca_read_stored_pos(tp->slot_num, 2);
601         if(!(r2 & 0x02))
602                 tp->mode_bits |= EARLY_TOKEN_REL;
603
604         /* Disable slot */
605         outb(CNFG_POS_CONTROL_REG, 0);
606
607         tp->board_id = smctr_get_boardid(dev, 1);
608         switch(tp->board_id & 0xffff)
609         {
610                 case WD8115TA:
611                         smctr_model = "8115T/A";
612                         break;
613
614                 case WD8115T:
615                         if(tp->extra_info & CHIP_REV_MASK)
616                                 smctr_model = "8115T rev XE";
617                         else
618                                 smctr_model = "8115T rev XD";
619                         break;
620
621                 default:
622                         smctr_model = "Unknown";
623                         break;
624         }
625
626         return (0);
627 #else
628         return (-1);
629 #endif /* CONFIG_MCA_LEGACY */
630 }
631
632 static int smctr_chg_rx_mask(struct net_device *dev)
633 {
634         struct net_local *tp = netdev_priv(dev);
635         int err = 0;
636
637         if(smctr_debug > 10)
638                 printk(KERN_DEBUG "%s: smctr_chg_rx_mask\n", dev->name);
639
640         smctr_enable_16bit(dev);
641         smctr_set_page(dev, (__u8 *)tp->ram_access);
642
643         if(tp->mode_bits & LOOPING_MODE_MASK)
644                 tp->config_word0 |= RX_OWN_BIT;
645         else
646                 tp->config_word0 &= ~RX_OWN_BIT;
647
648         if(tp->receive_mask & PROMISCUOUS_MODE)
649                 tp->config_word0 |= PROMISCUOUS_BIT;
650         else
651                 tp->config_word0 &= ~PROMISCUOUS_BIT;
652
653         if(tp->receive_mask & ACCEPT_ERR_PACKETS)
654                 tp->config_word0 |= SAVBAD_BIT;
655         else
656                 tp->config_word0 &= ~SAVBAD_BIT;
657
658         if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
659                 tp->config_word0 |= RXATMAC;
660         else
661                 tp->config_word0 &= ~RXATMAC;
662
663         if(tp->receive_mask & ACCEPT_MULTI_PROM)
664                 tp->config_word1 |= MULTICAST_ADDRESS_BIT;
665         else
666                 tp->config_word1 &= ~MULTICAST_ADDRESS_BIT;
667
668         if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING)
669                 tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS;
670         else
671         {
672                 if(tp->receive_mask & ACCEPT_SOURCE_ROUTING)
673                         tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT;
674                 else
675                         tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS;
676         }
677
678         if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_0,
679                 &tp->config_word0)))
680         {
681                 return (err);
682         }
683
684         if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_1,
685                 &tp->config_word1)))
686         {
687                 return (err);
688         }
689
690         smctr_disable_16bit(dev);
691
692         return (0);
693 }
694
695 static int smctr_clear_int(struct net_device *dev)
696 {
697         struct net_local *tp = netdev_priv(dev);
698
699         outb((tp->trc_mask | CSR_CLRTINT), dev->base_addr + CSR);
700
701         return (0);
702 }
703
704 static int smctr_clear_trc_reset(int ioaddr)
705 {
706         __u8 r;
707
708         r = inb(ioaddr + MSR);
709         outb(~MSR_RST & r, ioaddr + MSR);
710
711         return (0);
712 }
713
714 /*
715  * The inverse routine to smctr_open().
716  */
717 static int smctr_close(struct net_device *dev)
718 {
719         struct net_local *tp = netdev_priv(dev);
720         struct sk_buff *skb;
721         int err;
722
723         netif_stop_queue(dev);
724         
725         tp->cleanup = 1;
726
727         /* Check to see if adapter is already in a closed state. */
728         if(tp->status != OPEN)
729                 return (0);
730
731         smctr_enable_16bit(dev);
732         smctr_set_page(dev, (__u8 *)tp->ram_access);
733
734         if((err = smctr_issue_remove_cmd(dev)))
735         {
736                 smctr_disable_16bit(dev);
737                 return (err);
738         }
739
740         for(;;)
741         {
742                 skb = skb_dequeue(&tp->SendSkbQueue);
743                 if(skb == NULL)
744                         break;
745                 tp->QueueSkb++;
746                 dev_kfree_skb(skb);
747         }
748
749
750         return (0);
751 }
752
753 static int smctr_decode_firmware(struct net_device *dev,
754                                  const struct firmware *fw)
755 {
756         struct net_local *tp = netdev_priv(dev);
757         short bit = 0x80, shift = 12;
758         DECODE_TREE_NODE *tree;
759         short branch, tsize;
760         __u16 buff = 0;
761         long weight;
762         __u8 *ucode;
763         __u16 *mem;
764
765         if(smctr_debug > 10)
766                 printk(KERN_DEBUG "%s: smctr_decode_firmware\n", dev->name);
767
768         weight  = *(long *)(fw->data + WEIGHT_OFFSET);
769         tsize   = *(__u8 *)(fw->data + TREE_SIZE_OFFSET);
770         tree    = (DECODE_TREE_NODE *)(fw->data + TREE_OFFSET);
771         ucode   = (__u8 *)(fw->data + TREE_OFFSET
772                         + (tsize * sizeof(DECODE_TREE_NODE)));
773         mem     = (__u16 *)(tp->ram_access);
774
775         while(weight)
776         {
777                 branch = ROOT;
778                 while((tree + branch)->tag != LEAF && weight)
779                 {
780                         branch = *ucode & bit ? (tree + branch)->llink
781                                 : (tree + branch)->rlink;
782
783                         bit >>= 1;
784                         weight--;
785
786                         if(bit == 0)
787                         {
788                                 bit = 0x80;
789                                 ucode++;
790                         }
791                 }
792
793                 buff |= (tree + branch)->info << shift;
794                 shift -= 4;
795
796                 if(shift < 0)
797                 {
798                         *(mem++) = SWAP_BYTES(buff);
799                         buff    = 0;
800                         shift   = 12;
801                 }
802         }
803
804         /* The following assumes the Control Store Memory has
805          * been initialized to zero. If the last partial word
806          * is zero, it will not be written.
807          */
808         if(buff)
809                 *(mem++) = SWAP_BYTES(buff);
810
811         return (0);
812 }
813
814 static int smctr_disable_16bit(struct net_device *dev)
815 {
816         return (0);
817 }
818
819 /*
820  * On Exit, Adapter is:
821  * 1. TRC is in a reset state and un-initialized.
822  * 2. Adapter memory is enabled.
823  * 3. Control Store memory is out of context (-WCSS is 1).
824  */
825 static int smctr_disable_adapter_ctrl_store(struct net_device *dev)
826 {
827         struct net_local *tp = netdev_priv(dev);
828         int ioaddr = dev->base_addr;
829
830         if(smctr_debug > 10)
831                 printk(KERN_DEBUG "%s: smctr_disable_adapter_ctrl_store\n", dev->name);
832
833         tp->trc_mask |= CSR_WCSS;
834         outb(tp->trc_mask, ioaddr + CSR);
835
836         return (0);
837 }
838
839 static int smctr_disable_bic_int(struct net_device *dev)
840 {
841         struct net_local *tp = netdev_priv(dev);
842         int ioaddr = dev->base_addr;
843
844         tp->trc_mask = CSR_MSK_ALL | CSR_MSKCBUSY
845                 | CSR_MSKTINT | CSR_WCSS;
846         outb(tp->trc_mask, ioaddr + CSR);
847
848         return (0);
849 }
850
851 static int smctr_enable_16bit(struct net_device *dev)
852 {
853         struct net_local *tp = netdev_priv(dev);
854         __u8    r;
855
856         if(tp->adapter_bus == BUS_ISA16_TYPE)
857         {
858                 r = inb(dev->base_addr + LAAR);
859                 outb((r | LAAR_MEM16ENB), dev->base_addr + LAAR);
860         }
861
862         return (0);
863 }
864
865 /*
866  * To enable the adapter control store memory:
867  * 1. Adapter must be in a RESET state.
868  * 2. Adapter memory must be enabled.
869  * 3. Control Store Memory is in context (-WCSS is 0).
870  */
871 static int smctr_enable_adapter_ctrl_store(struct net_device *dev)
872 {
873         struct net_local *tp = netdev_priv(dev);
874         int ioaddr = dev->base_addr;
875
876         if(smctr_debug > 10)
877                 printk(KERN_DEBUG "%s: smctr_enable_adapter_ctrl_store\n", dev->name);
878
879         smctr_set_trc_reset(ioaddr);
880         smctr_enable_adapter_ram(dev);
881
882         tp->trc_mask &= ~CSR_WCSS;
883         outb(tp->trc_mask, ioaddr + CSR);
884
885         return (0);
886 }
887
888 static int smctr_enable_adapter_ram(struct net_device *dev)
889 {
890         int ioaddr = dev->base_addr;
891         __u8 r;
892
893         if(smctr_debug > 10)
894                 printk(KERN_DEBUG "%s: smctr_enable_adapter_ram\n", dev->name);
895
896         r = inb(ioaddr + MSR);
897         outb(MSR_MEMB | r, ioaddr + MSR);
898
899         return (0);
900 }
901
902 static int smctr_enable_bic_int(struct net_device *dev)
903 {
904         struct net_local *tp = netdev_priv(dev);
905         int ioaddr = dev->base_addr;
906         __u8 r;
907
908         switch(tp->bic_type)
909         {
910                 case (BIC_584_CHIP):
911                         tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS;
912                         outb(tp->trc_mask, ioaddr + CSR);
913                         r = inb(ioaddr + IRR);
914                         outb(r | IRR_IEN, ioaddr + IRR);
915                         break;
916
917                 case (BIC_594_CHIP):
918                         tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS;
919                         outb(tp->trc_mask, ioaddr + CSR);
920                         r = inb(ioaddr + IMCCR);
921                         outb(r | IMCCR_EIL, ioaddr + IMCCR);
922                         break;
923         }
924
925         return (0);
926 }
927
928 static int __init smctr_chk_isa(struct net_device *dev)
929 {
930         struct net_local *tp = netdev_priv(dev);
931         int ioaddr = dev->base_addr;
932         __u8 r1, r2, b, chksum = 0;
933         __u16 r;
934         int i;
935         int err = -ENODEV;
936
937         if(smctr_debug > 10)
938                 printk(KERN_DEBUG "%s: smctr_chk_isa %#4x\n", dev->name, ioaddr);
939
940         if((ioaddr & 0x1F) != 0)
941                 goto out;
942
943         /* Grab the region so that no one else tries to probe our ioports. */
944         if (!request_region(ioaddr, SMCTR_IO_EXTENT, smctr_name)) {
945                 err = -EBUSY;
946                 goto out;
947         }
948
949         /* Checksum SMC node address */
950         for(i = 0; i < 8; i++)
951         {
952                 b = inb(ioaddr + LAR0 + i);
953                 chksum += b;
954         }
955
956         if (chksum != NODE_ADDR_CKSUM)
957                 goto out2;
958
959         b = inb(ioaddr + BDID);
960         if(b != BRD_ID_8115T)
961         {
962                 printk(KERN_ERR "%s: The adapter found is not supported\n", dev->name);
963                 goto out2;
964         }
965
966         /* Check for 8115T Board ID */
967         r2 = 0;
968         for(r = 0; r < 8; r++)
969         {
970             r1 = inb(ioaddr + 0x8 + r);
971             r2 += r1;
972         }
973
974         /* value of RegF adds up the sum to 0xFF */
975         if((r2 != 0xFF) && (r2 != 0xEE))
976                 goto out2;
977
978         /* Get adapter ID */
979         tp->board_id = smctr_get_boardid(dev, 0);
980         switch(tp->board_id & 0xffff)
981         {
982                 case WD8115TA:
983                         smctr_model = "8115T/A";
984                         break;
985
986                 case WD8115T:
987                         if(tp->extra_info & CHIP_REV_MASK)
988                                 smctr_model = "8115T rev XE";
989                         else
990                                 smctr_model = "8115T rev XD";
991                         break;
992
993                 default:
994                         smctr_model = "Unknown";
995                         break;
996         }
997
998         /* Store BIC type. */
999         tp->bic_type = BIC_584_CHIP;
1000         tp->nic_type = NIC_825_CHIP;
1001
1002         /* Copy Ram Size */
1003         tp->ram_usable  = CNFG_SIZE_16KB;
1004         tp->ram_size    = CNFG_SIZE_64KB;
1005
1006         /* Get 58x Ram Base */
1007         r1 = inb(ioaddr);
1008         r1 &= 0x3F;
1009
1010         r2 = inb(ioaddr + CNFG_LAAR_584);
1011         r2 &= CNFG_LAAR_MASK;
1012         r2 <<= 3;
1013         r2 |= ((r1 & 0x38) >> 3);
1014
1015         tp->ram_base = ((__u32)r2 << 16) + (((__u32)(r1 & 0x7)) << 13);
1016
1017         /* Get 584 Irq */
1018         r1 = 0;
1019         r1 = inb(ioaddr + CNFG_ICR_583);
1020         r1 &= CNFG_ICR_IR2_584;
1021
1022         r2 = inb(ioaddr + CNFG_IRR_583);
1023         r2 &= CNFG_IRR_IRQS;     /* 0x60 */
1024         r2 >>= 5;
1025
1026         switch(r2)
1027         {
1028                 case 0:
1029                         if(r1 == 0)
1030                                 dev->irq = 2;
1031                         else
1032                                 dev->irq = 10;
1033                         break;
1034
1035                 case 1:
1036                         if(r1 == 0)
1037                                 dev->irq = 3;
1038                         else
1039                                 dev->irq = 11;
1040                         break;
1041
1042                 case 2:
1043                         if(r1 == 0)
1044                         {
1045                                 if(tp->extra_info & ALTERNATE_IRQ_BIT)
1046                                         dev->irq = 5;
1047                                 else
1048                                         dev->irq = 4;
1049                         }
1050                         else
1051                                 dev->irq = 15;
1052                         break;
1053
1054                 case 3:
1055                         if(r1 == 0)
1056                                 dev->irq = 7;
1057                         else
1058                                 dev->irq = 4;
1059                         break;
1060
1061                 default:
1062                         printk(KERN_ERR "%s: No IRQ found aborting\n", dev->name);
1063                         goto out2;
1064          }
1065
1066         if (request_irq(dev->irq, smctr_interrupt, IRQF_SHARED, smctr_name, dev))
1067                 goto out2;
1068
1069         /* Get 58x Rom Base */
1070         r1 = inb(ioaddr + CNFG_BIO_583);
1071         r1 &= 0x3E;
1072         r1 |= 0x40;
1073
1074         tp->rom_base = (__u32)r1 << 13;
1075
1076         /* Get 58x Rom Size */
1077         r1 = inb(ioaddr + CNFG_BIO_583);
1078         r1 &= 0xC0;
1079         if(r1 == 0)
1080                 tp->rom_size = ROM_DISABLE;
1081         else
1082         {
1083                 r1 >>= 6;
1084                 tp->rom_size = (__u16)CNFG_SIZE_8KB << r1;
1085         }
1086
1087         /* Get 58x Boot Status */
1088         r1 = inb(ioaddr + CNFG_GP2);
1089
1090         tp->mode_bits &= (~BOOT_STATUS_MASK);
1091
1092         if(r1 & CNFG_GP2_BOOT_NIBBLE)
1093                 tp->mode_bits |= BOOT_TYPE_1;
1094
1095         /* Get 58x Zero Wait State */
1096         tp->mode_bits &= (~ZERO_WAIT_STATE_MASK);
1097
1098         r1 = inb(ioaddr + CNFG_IRR_583);
1099
1100         if(r1 & CNFG_IRR_ZWS)
1101                  tp->mode_bits |= ZERO_WAIT_STATE_8_BIT;
1102
1103         if(tp->board_id & BOARD_16BIT)
1104         {
1105                 r1 = inb(ioaddr + CNFG_LAAR_584);
1106
1107                 if(r1 & CNFG_LAAR_ZWS)
1108                         tp->mode_bits |= ZERO_WAIT_STATE_16_BIT;
1109         }
1110
1111         /* Get 584 Media Menu */
1112         tp->media_menu = 14;
1113         r1 = inb(ioaddr + CNFG_IRR_583);
1114
1115         tp->mode_bits &= 0xf8ff;       /* (~CNFG_INTERFACE_TYPE_MASK) */
1116         if((tp->board_id & TOKEN_MEDIA) == TOKEN_MEDIA)
1117         {
1118                 /* Get Advanced Features */
1119                 if(((r1 & 0x6) >> 1) == 0x3)
1120                         tp->media_type |= MEDIA_UTP_16;
1121                 else
1122                 {
1123                         if(((r1 & 0x6) >> 1) == 0x2)
1124                                 tp->media_type |= MEDIA_STP_16;
1125                         else
1126                         {
1127                                 if(((r1 & 0x6) >> 1) == 0x1)
1128                                         tp->media_type |= MEDIA_UTP_4;
1129
1130                                 else
1131                                         tp->media_type |= MEDIA_STP_4;
1132                         }
1133                 }
1134
1135                 r1 = inb(ioaddr + CNFG_GP2);
1136                 if(!(r1 & 0x2) )           /* GP2_ETRD */
1137                         tp->mode_bits |= EARLY_TOKEN_REL;
1138
1139                 /* see if the chip is corrupted
1140                 if(smctr_read_584_chksum(ioaddr))
1141                 {
1142                         printk(KERN_ERR "%s: EEPROM Checksum Failure\n", dev->name);
1143                         free_irq(dev->irq, dev);
1144                         goto out2;
1145                 }
1146                 */
1147         }
1148
1149         return (0);
1150
1151 out2:
1152         release_region(ioaddr, SMCTR_IO_EXTENT);
1153 out:
1154         return err;
1155 }
1156
1157 static int __init smctr_get_boardid(struct net_device *dev, int mca)
1158 {
1159         struct net_local *tp = netdev_priv(dev);
1160         int ioaddr = dev->base_addr;
1161         __u8 r, r1, IdByte;
1162         __u16 BoardIdMask;
1163
1164         tp->board_id = BoardIdMask = 0;
1165
1166         if(mca)
1167         {
1168                 BoardIdMask |= (MICROCHANNEL+INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT);
1169                 tp->extra_info |= (INTERFACE_594_CHIP+RAM_SIZE_64K+NIC_825_BIT+ALTERNATE_IRQ_BIT+SLOT_16BIT);
1170         }
1171         else
1172         {
1173                 BoardIdMask|=(INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT);
1174                 tp->extra_info |= (INTERFACE_584_CHIP + RAM_SIZE_64K
1175                         + NIC_825_BIT + ALTERNATE_IRQ_BIT);
1176         }
1177
1178         if(!mca)
1179         {
1180                 r = inb(ioaddr + BID_REG_1);
1181                 r &= 0x0c;
1182                 outb(r, ioaddr + BID_REG_1);
1183                 r = inb(ioaddr + BID_REG_1);
1184
1185                 if(r & BID_SIXTEEN_BIT_BIT)
1186                 {
1187                         tp->extra_info |= SLOT_16BIT;
1188                         tp->adapter_bus = BUS_ISA16_TYPE;
1189                 }
1190                 else
1191                         tp->adapter_bus = BUS_ISA8_TYPE;
1192         }
1193         else
1194                 tp->adapter_bus = BUS_MCA_TYPE;
1195
1196         /* Get Board Id Byte */
1197         IdByte = inb(ioaddr + BID_BOARD_ID_BYTE);
1198
1199         /* if Major version > 1.0 then
1200          *      return;
1201          */
1202         if(IdByte & 0xF8)
1203                 return (-1);
1204
1205         r1 = inb(ioaddr + BID_REG_1);
1206         r1 &= BID_ICR_MASK;
1207         r1 |= BID_OTHER_BIT;
1208
1209         outb(r1, ioaddr + BID_REG_1);
1210         r1 = inb(ioaddr + BID_REG_3);
1211
1212         r1 &= BID_EAR_MASK;
1213         r1 |= BID_ENGR_PAGE;
1214
1215         outb(r1, ioaddr + BID_REG_3);
1216         r1 = inb(ioaddr + BID_REG_1);
1217         r1 &= BID_ICR_MASK;
1218         r1 |= (BID_RLA | BID_OTHER_BIT);
1219
1220         outb(r1, ioaddr + BID_REG_1);
1221
1222         r1 = inb(ioaddr + BID_REG_1);
1223         while(r1 & BID_RECALL_DONE_MASK)
1224                 r1 = inb(ioaddr + BID_REG_1);
1225
1226         r = inb(ioaddr + BID_LAR_0 + BID_REG_6);
1227
1228         /* clear chip rev bits */
1229         tp->extra_info &= ~CHIP_REV_MASK;
1230         tp->extra_info |= ((r & BID_EEPROM_CHIP_REV_MASK) << 6);
1231
1232         r1 = inb(ioaddr + BID_REG_1);
1233         r1 &= BID_ICR_MASK;
1234         r1 |= BID_OTHER_BIT;
1235
1236         outb(r1, ioaddr + BID_REG_1);
1237         r1 = inb(ioaddr + BID_REG_3);
1238
1239         r1 &= BID_EAR_MASK;
1240         r1 |= BID_EA6;
1241
1242         outb(r1, ioaddr + BID_REG_3);
1243         r1 = inb(ioaddr + BID_REG_1);
1244
1245         r1 &= BID_ICR_MASK;
1246         r1 |= BID_RLA;
1247
1248         outb(r1, ioaddr + BID_REG_1);
1249         r1 = inb(ioaddr + BID_REG_1);
1250
1251         while(r1 & BID_RECALL_DONE_MASK)
1252                 r1 = inb(ioaddr + BID_REG_1);
1253
1254         return (BoardIdMask);
1255 }
1256
1257 static int smctr_get_group_address(struct net_device *dev)
1258 {
1259         smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_GROUP_ADDR);
1260
1261         return(smctr_wait_cmd(dev));
1262 }
1263
1264 static int smctr_get_functional_address(struct net_device *dev)
1265 {
1266         smctr_issue_read_word_cmd(dev, RW_FUNCTIONAL_ADDR);
1267
1268         return(smctr_wait_cmd(dev));
1269 }
1270
1271 /* Calculate number of Non-MAC receive BDB's and data buffers.
1272  * This function must simulate allocateing shared memory exactly
1273  * as the allocate_shared_memory function above.
1274  */
1275 static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev)
1276 {
1277         struct net_local *tp = netdev_priv(dev);
1278         unsigned int mem_used = 0;
1279
1280         /* Allocate System Control Blocks. */
1281         mem_used += sizeof(SCGBlock);
1282
1283         mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1284         mem_used += sizeof(SCLBlock);
1285
1286         mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1287         mem_used += sizeof(ACBlock) * tp->num_acbs;
1288
1289         mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1290         mem_used += sizeof(ISBlock);
1291
1292         mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1293         mem_used += MISC_DATA_SIZE;
1294
1295         /* Allocate transmit FCB's. */
1296         mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1297
1298         mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE];
1299         mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE];
1300         mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE];
1301
1302         /* Allocate transmit BDBs. */
1303         mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE];
1304         mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE];
1305         mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE];
1306
1307         /* Allocate receive FCBs. */
1308         mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE];
1309         mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE];
1310
1311         /* Allocate receive BDBs. */
1312         mem_used += sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE];
1313
1314         /* Allocate MAC transmit buffers.
1315          * MAC transmit buffers don't have to be on an ODD Boundry.
1316          */
1317         mem_used += tp->tx_buff_size[MAC_QUEUE];
1318
1319         /* Allocate BUG transmit buffers. */
1320         mem_used += tp->tx_buff_size[BUG_QUEUE];
1321
1322         /* Allocate MAC receive data buffers.
1323          * MAC receive buffers don't have to be on a 256 byte boundary.
1324          */
1325         mem_used += RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE];
1326
1327         /* Allocate Non-MAC transmit buffers.
1328          * For maximum Netware performance, put Tx Buffers on
1329          * ODD Boundry,and then restore malloc to Even Boundrys.
1330          */
1331         mem_used += 1L;
1332         mem_used += tp->tx_buff_size[NON_MAC_QUEUE];
1333         mem_used += 1L;
1334
1335         /* CALCULATE NUMBER OF NON-MAC RX BDB'S
1336          * AND NON-MAC RX DATA BUFFERS
1337          *
1338          * Make sure the mem_used offset at this point is the
1339          * same as in allocate_shared memory or the following
1340          * boundary adjustment will be incorrect (i.e. not allocating
1341          * the non-mac receive buffers above cannot change the 256
1342          * byte offset).
1343          *
1344          * Since this cannot be guaranteed, adding the full 256 bytes
1345          * to the amount of shared memory used at this point will guaranteed
1346          * that the rx data buffers do not overflow shared memory.
1347          */
1348         mem_used += 0x100;
1349
1350         return((0xffff - mem_used) / (RX_DATA_BUFFER_SIZE + sizeof(BDBlock)));
1351 }
1352
1353 static int smctr_get_physical_drop_number(struct net_device *dev)
1354 {
1355         smctr_issue_read_word_cmd(dev, RW_PHYSICAL_DROP_NUMBER);
1356
1357         return(smctr_wait_cmd(dev));
1358 }
1359
1360 static __u8 * smctr_get_rx_pointer(struct net_device *dev, short queue)
1361 {
1362         struct net_local *tp = netdev_priv(dev);
1363         BDBlock *bdb;
1364
1365         bdb = (BDBlock *)((__u32)tp->ram_access
1366                 + (__u32)(tp->rx_fcb_curr[queue]->trc_bdb_ptr));
1367
1368         tp->rx_fcb_curr[queue]->bdb_ptr = bdb;
1369
1370         return ((__u8 *)bdb->data_block_ptr);
1371 }
1372
1373 static int smctr_get_station_id(struct net_device *dev)
1374 {
1375         smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_MAC_ADDRESS);
1376
1377         return(smctr_wait_cmd(dev));
1378 }
1379
1380 /*
1381  * Get the current statistics. This may be called with the card open
1382  * or closed.
1383  */
1384 static struct net_device_stats *smctr_get_stats(struct net_device *dev)
1385 {
1386         struct net_local *tp = netdev_priv(dev);
1387
1388         return ((struct net_device_stats *)&tp->MacStat);
1389 }
1390
1391 static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue,
1392         __u16 bytes_count)
1393 {
1394         struct net_local *tp = netdev_priv(dev);
1395         FCBlock *pFCB;
1396         BDBlock *pbdb;
1397         unsigned short alloc_size;
1398         unsigned short *temp;
1399
1400         if(smctr_debug > 20)
1401                 printk(KERN_DEBUG "smctr_get_tx_fcb\n");
1402
1403         /* check if there is enough FCB blocks */
1404         if(tp->num_tx_fcbs_used[queue] >= tp->num_tx_fcbs[queue])
1405                 return ((FCBlock *)(-1L));
1406
1407         /* round off the input pkt size to the nearest even number */
1408         alloc_size = (bytes_count + 1) & 0xfffe;
1409
1410         /* check if enough mem */
1411         if((tp->tx_buff_used[queue] + alloc_size) > tp->tx_buff_size[queue])
1412                 return ((FCBlock *)(-1L));
1413
1414         /* check if past the end ;
1415          * if exactly enough mem to end of ring, alloc from front.
1416          * this avoids update of curr when curr = end
1417          */
1418         if(((unsigned long)(tp->tx_buff_curr[queue]) + alloc_size)
1419                 >= (unsigned long)(tp->tx_buff_end[queue]))
1420         {
1421                 /* check if enough memory from ring head */
1422                 alloc_size = alloc_size +
1423                         (__u16)((__u32)tp->tx_buff_end[queue]
1424                         - (__u32)tp->tx_buff_curr[queue]);
1425
1426                 if((tp->tx_buff_used[queue] + alloc_size)
1427                         > tp->tx_buff_size[queue])
1428                 {
1429                         return ((FCBlock *)(-1L));
1430                 }
1431
1432                 /* ring wrap */
1433                 tp->tx_buff_curr[queue] = tp->tx_buff_head[queue];
1434         }
1435
1436         tp->tx_buff_used[queue] += alloc_size;
1437         tp->num_tx_fcbs_used[queue]++;
1438         tp->tx_fcb_curr[queue]->frame_length = bytes_count;
1439         tp->tx_fcb_curr[queue]->memory_alloc = alloc_size;
1440         temp = tp->tx_buff_curr[queue];
1441         tp->tx_buff_curr[queue]
1442                 = (__u16 *)((__u32)temp + (__u32)((bytes_count + 1) & 0xfffe));
1443
1444         pbdb = tp->tx_fcb_curr[queue]->bdb_ptr;
1445         pbdb->buffer_length = bytes_count;
1446         pbdb->data_block_ptr = temp;
1447         pbdb->trc_data_block_ptr = TRC_POINTER(temp);
1448
1449         pFCB = tp->tx_fcb_curr[queue];
1450         tp->tx_fcb_curr[queue] = tp->tx_fcb_curr[queue]->next_ptr;
1451
1452         return (pFCB);
1453 }
1454
1455 static int smctr_get_upstream_neighbor_addr(struct net_device *dev)
1456 {
1457         smctr_issue_read_word_cmd(dev, RW_UPSTREAM_NEIGHBOR_ADDRESS);
1458
1459         return(smctr_wait_cmd(dev));
1460 }
1461
1462 static int smctr_hardware_send_packet(struct net_device *dev,
1463         struct net_local *tp)
1464 {
1465         struct tr_statistics *tstat = &tp->MacStat;
1466         struct sk_buff *skb;
1467         FCBlock *fcb;
1468
1469         if(smctr_debug > 10)
1470                 printk(KERN_DEBUG"%s: smctr_hardware_send_packet\n", dev->name);
1471
1472         if(tp->status != OPEN)
1473                 return (-1);
1474
1475         if(tp->monitor_state_ready != 1)
1476                 return (-1);
1477
1478         for(;;)
1479         {
1480                 /* Send first buffer from queue */
1481                 skb = skb_dequeue(&tp->SendSkbQueue);
1482                 if(skb == NULL)
1483                         return (-1);
1484
1485                 tp->QueueSkb++;
1486
1487                 if(skb->len < SMC_HEADER_SIZE || skb->len > tp->max_packet_size)                        return (-1);
1488
1489                 smctr_enable_16bit(dev);
1490                 smctr_set_page(dev, (__u8 *)tp->ram_access);
1491
1492                 if((fcb = smctr_get_tx_fcb(dev, NON_MAC_QUEUE, skb->len))
1493                         == (FCBlock *)(-1L))
1494                 {
1495                         smctr_disable_16bit(dev);
1496                         return (-1);
1497                 }
1498
1499                 smctr_tx_move_frame(dev, skb,
1500                         (__u8 *)fcb->bdb_ptr->data_block_ptr, skb->len);
1501
1502                 smctr_set_page(dev, (__u8 *)fcb);
1503
1504                 smctr_trc_send_packet(dev, fcb, NON_MAC_QUEUE);
1505                 dev_kfree_skb(skb);
1506
1507                 tstat->tx_packets++;
1508
1509                 smctr_disable_16bit(dev);
1510         }
1511
1512         return (0);
1513 }
1514
1515 static int smctr_init_acbs(struct net_device *dev)
1516 {
1517         struct net_local *tp = netdev_priv(dev);
1518         unsigned int i;
1519         ACBlock *acb;
1520
1521         if(smctr_debug > 10)
1522                 printk(KERN_DEBUG "%s: smctr_init_acbs\n", dev->name);
1523
1524         acb                     = tp->acb_head;
1525         acb->cmd_done_status    = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL);
1526         acb->cmd_info           = ACB_CHAIN_END;
1527         acb->cmd                = 0;
1528         acb->subcmd             = 0;
1529         acb->data_offset_lo     = 0;
1530         acb->data_offset_hi     = 0;
1531         acb->next_ptr
1532                 = (ACBlock *)(((char *)acb) + sizeof(ACBlock));
1533         acb->trc_next_ptr       = TRC_POINTER(acb->next_ptr);
1534
1535         for(i = 1; i < tp->num_acbs; i++)
1536         {
1537                 acb             = acb->next_ptr;
1538                 acb->cmd_done_status
1539                         = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL);
1540                 acb->cmd_info = ACB_CHAIN_END;
1541                 acb->cmd        = 0;
1542                 acb->subcmd     = 0;
1543                 acb->data_offset_lo = 0;
1544                 acb->data_offset_hi = 0;
1545                 acb->next_ptr
1546                         = (ACBlock *)(((char *)acb) + sizeof(ACBlock));
1547                 acb->trc_next_ptr = TRC_POINTER(acb->next_ptr);
1548         }
1549
1550         acb->next_ptr           = tp->acb_head;
1551         acb->trc_next_ptr       = TRC_POINTER(tp->acb_head);
1552         tp->acb_next            = tp->acb_head->next_ptr;
1553         tp->acb_curr            = tp->acb_head->next_ptr;
1554         tp->num_acbs_used       = 0;
1555
1556         return (0);
1557 }
1558
1559 static int smctr_init_adapter(struct net_device *dev)
1560 {
1561         struct net_local *tp = netdev_priv(dev);
1562         int err;
1563
1564         if(smctr_debug > 10)
1565                 printk(KERN_DEBUG "%s: smctr_init_adapter\n", dev->name);
1566
1567         tp->status              = CLOSED;
1568         tp->page_offset_mask    = (tp->ram_usable * 1024) - 1;
1569         skb_queue_head_init(&tp->SendSkbQueue);
1570         tp->QueueSkb = MAX_TX_QUEUE;
1571
1572         if(!(tp->group_address_0 & 0x0080))
1573                 tp->group_address_0 |= 0x00C0;
1574
1575         if(!(tp->functional_address_0 & 0x00C0))
1576                 tp->functional_address_0 |= 0x00C0;
1577
1578         tp->functional_address[0] &= 0xFF7F;
1579
1580         if(tp->authorized_function_classes == 0)
1581                 tp->authorized_function_classes = 0x7FFF;
1582
1583         if(tp->authorized_access_priority == 0)
1584                 tp->authorized_access_priority = 0x06;
1585
1586         smctr_disable_bic_int(dev);
1587         smctr_set_trc_reset(dev->base_addr);
1588
1589         smctr_enable_16bit(dev);
1590         smctr_set_page(dev, (__u8 *)tp->ram_access);
1591
1592         if(smctr_checksum_firmware(dev))
1593         {
1594                 printk(KERN_ERR "%s: Previously loaded firmware is missing\n",dev->name);                return (-ENOENT);
1595         }
1596
1597         if((err = smctr_ram_memory_test(dev)))
1598         {
1599                 printk(KERN_ERR "%s: RAM memory test failed.\n", dev->name);
1600                 return (-EIO);
1601         }
1602
1603         smctr_set_rx_look_ahead(dev);
1604         smctr_load_node_addr(dev);
1605
1606         /* Initialize adapter for Internal Self Test. */
1607         smctr_reset_adapter(dev);
1608         if((err = smctr_init_card_real(dev)))
1609         {
1610                 printk(KERN_ERR "%s: Initialization of card failed (%d)\n",
1611                         dev->name, err);
1612                 return (-EINVAL);
1613         }
1614
1615         /* This routine clobbers the TRC's internal registers. */
1616         if((err = smctr_internal_self_test(dev)))
1617         {
1618                 printk(KERN_ERR "%s: Card failed internal self test (%d)\n",
1619                         dev->name, err);
1620                 return (-EINVAL);
1621         }
1622
1623         /* Re-Initialize adapter's internal registers */
1624         smctr_reset_adapter(dev);
1625         if((err = smctr_init_card_real(dev)))
1626         {
1627                 printk(KERN_ERR "%s: Initialization of card failed (%d)\n",
1628                         dev->name, err);
1629                 return (-EINVAL);
1630         }
1631
1632         smctr_enable_bic_int(dev);
1633
1634         if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK)))
1635                 return (err);
1636
1637         smctr_disable_16bit(dev);
1638
1639         return (0);
1640 }
1641
1642 static int smctr_init_card_real(struct net_device *dev)
1643 {
1644         struct net_local *tp = netdev_priv(dev);
1645         int err = 0;
1646
1647         if(smctr_debug > 10)
1648                 printk(KERN_DEBUG "%s: smctr_init_card_real\n", dev->name);
1649
1650         tp->sh_mem_used = 0;
1651         tp->num_acbs    = NUM_OF_ACBS;
1652
1653         /* Range Check Max Packet Size */
1654         if(tp->max_packet_size < 256)
1655                 tp->max_packet_size = 256;
1656         else
1657         {
1658                 if(tp->max_packet_size > NON_MAC_TX_BUFFER_MEMORY)
1659                         tp->max_packet_size = NON_MAC_TX_BUFFER_MEMORY;
1660         }
1661
1662         tp->num_of_tx_buffs = (NON_MAC_TX_BUFFER_MEMORY
1663                 / tp->max_packet_size) - 1;
1664
1665         if(tp->num_of_tx_buffs > NUM_NON_MAC_TX_FCBS)
1666                 tp->num_of_tx_buffs = NUM_NON_MAC_TX_FCBS;
1667         else
1668         {
1669                 if(tp->num_of_tx_buffs == 0)
1670                         tp->num_of_tx_buffs = 1;
1671         }
1672
1673         /* Tx queue constants */
1674         tp->num_tx_fcbs        [BUG_QUEUE]     = NUM_BUG_TX_FCBS;
1675         tp->num_tx_bdbs        [BUG_QUEUE]     = NUM_BUG_TX_BDBS;
1676         tp->tx_buff_size       [BUG_QUEUE]     = BUG_TX_BUFFER_MEMORY;
1677         tp->tx_buff_used       [BUG_QUEUE]     = 0;
1678         tp->tx_queue_status    [BUG_QUEUE]     = NOT_TRANSMITING;
1679
1680         tp->num_tx_fcbs        [MAC_QUEUE]     = NUM_MAC_TX_FCBS;
1681         tp->num_tx_bdbs        [MAC_QUEUE]     = NUM_MAC_TX_BDBS;
1682         tp->tx_buff_size       [MAC_QUEUE]     = MAC_TX_BUFFER_MEMORY;
1683         tp->tx_buff_used       [MAC_QUEUE]     = 0;
1684         tp->tx_queue_status    [MAC_QUEUE]     = NOT_TRANSMITING;
1685
1686         tp->num_tx_fcbs        [NON_MAC_QUEUE] = NUM_NON_MAC_TX_FCBS;
1687         tp->num_tx_bdbs        [NON_MAC_QUEUE] = NUM_NON_MAC_TX_BDBS;
1688         tp->tx_buff_size       [NON_MAC_QUEUE] = NON_MAC_TX_BUFFER_MEMORY;
1689         tp->tx_buff_used       [NON_MAC_QUEUE] = 0;
1690         tp->tx_queue_status    [NON_MAC_QUEUE] = NOT_TRANSMITING;
1691
1692         /* Receive Queue Constants */
1693         tp->num_rx_fcbs[MAC_QUEUE] = NUM_MAC_RX_FCBS;
1694         tp->num_rx_bdbs[MAC_QUEUE] = NUM_MAC_RX_BDBS;
1695
1696         if(tp->extra_info & CHIP_REV_MASK)
1697                 tp->num_rx_fcbs[NON_MAC_QUEUE] = 78;    /* 825 Rev. XE */
1698         else
1699                 tp->num_rx_fcbs[NON_MAC_QUEUE] = 7;     /* 825 Rev. XD */
1700
1701         tp->num_rx_bdbs[NON_MAC_QUEUE] = smctr_get_num_rx_bdbs(dev);
1702
1703         smctr_alloc_shared_memory(dev);
1704         smctr_init_shared_memory(dev);
1705
1706         if((err = smctr_issue_init_timers_cmd(dev)))
1707                 return (err);
1708
1709         if((err = smctr_issue_init_txrx_cmd(dev)))
1710         {
1711                 printk(KERN_ERR "%s: Hardware failure\n", dev->name);
1712                 return (err);
1713         }
1714
1715         return (0);
1716 }
1717
1718 static int smctr_init_rx_bdbs(struct net_device *dev)
1719 {
1720         struct net_local *tp = netdev_priv(dev);
1721         unsigned int i, j;
1722         BDBlock *bdb;
1723         __u16 *buf;
1724
1725         if(smctr_debug > 10)
1726                 printk(KERN_DEBUG "%s: smctr_init_rx_bdbs\n", dev->name);
1727
1728         for(i = 0; i < NUM_RX_QS_USED; i++)
1729         {
1730                 bdb = tp->rx_bdb_head[i];
1731                 buf = tp->rx_buff_head[i];
1732                 bdb->info = (BDB_CHAIN_END | BDB_NO_WARNING);
1733                 bdb->buffer_length = RX_DATA_BUFFER_SIZE;
1734                 bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
1735                 bdb->data_block_ptr = buf;
1736                 bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1737
1738                 if(i == NON_MAC_QUEUE)
1739                         bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf);
1740                 else
1741                         bdb->trc_data_block_ptr = TRC_POINTER(buf);
1742
1743                 for(j = 1; j < tp->num_rx_bdbs[i]; j++)
1744                 {
1745                         bdb->next_ptr->back_ptr = bdb;
1746                         bdb = bdb->next_ptr;
1747                         buf = (__u16 *)((char *)buf + RX_DATA_BUFFER_SIZE);
1748                         bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
1749                         bdb->buffer_length = RX_DATA_BUFFER_SIZE;
1750                         bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
1751                         bdb->data_block_ptr = buf;
1752                         bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1753
1754                         if(i == NON_MAC_QUEUE)
1755                                 bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf);
1756                         else
1757                                 bdb->trc_data_block_ptr = TRC_POINTER(buf);
1758                 }
1759
1760                 bdb->next_ptr           = tp->rx_bdb_head[i];
1761                 bdb->trc_next_ptr       = TRC_POINTER(tp->rx_bdb_head[i]);
1762
1763                 tp->rx_bdb_head[i]->back_ptr    = bdb;
1764                 tp->rx_bdb_curr[i]              = tp->rx_bdb_head[i]->next_ptr;
1765         }
1766
1767         return (0);
1768 }
1769
1770 static int smctr_init_rx_fcbs(struct net_device *dev)
1771 {
1772         struct net_local *tp = netdev_priv(dev);
1773         unsigned int i, j;
1774         FCBlock *fcb;
1775
1776         for(i = 0; i < NUM_RX_QS_USED; i++)
1777         {
1778                 fcb               = tp->rx_fcb_head[i];
1779                 fcb->frame_status = 0;
1780                 fcb->frame_length = 0;
1781                 fcb->info         = FCB_CHAIN_END;
1782                 fcb->next_ptr     = (FCBlock *)(((char*)fcb) + sizeof(FCBlock));
1783                 if(i == NON_MAC_QUEUE)
1784                         fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr);
1785                 else
1786                         fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1787
1788                 for(j = 1; j < tp->num_rx_fcbs[i]; j++)
1789                 {
1790                         fcb->next_ptr->back_ptr = fcb;
1791                         fcb                     = fcb->next_ptr;
1792                         fcb->frame_status       = 0;
1793                         fcb->frame_length       = 0;
1794                         fcb->info               = FCB_WARNING;
1795                         fcb->next_ptr
1796                                 = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
1797
1798                         if(i == NON_MAC_QUEUE)
1799                                 fcb->trc_next_ptr
1800                                         = RX_FCB_TRC_POINTER(fcb->next_ptr);
1801                         else
1802                                 fcb->trc_next_ptr
1803                                         = TRC_POINTER(fcb->next_ptr);
1804                 }
1805
1806                 fcb->next_ptr = tp->rx_fcb_head[i];
1807
1808                 if(i == NON_MAC_QUEUE)
1809                         fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr);
1810                 else
1811                         fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1812
1813                 tp->rx_fcb_head[i]->back_ptr    = fcb;
1814                 tp->rx_fcb_curr[i]              = tp->rx_fcb_head[i]->next_ptr;
1815         }
1816
1817         return(0);
1818 }
1819
1820 static int smctr_init_shared_memory(struct net_device *dev)
1821 {
1822         struct net_local *tp = netdev_priv(dev);
1823         unsigned int i;
1824         __u32 *iscpb;
1825
1826         if(smctr_debug > 10)
1827                 printk(KERN_DEBUG "%s: smctr_init_shared_memory\n", dev->name);
1828
1829         smctr_set_page(dev, (__u8 *)(unsigned int)tp->iscpb_ptr);
1830
1831         /* Initialize Initial System Configuration Point. (ISCP) */
1832         iscpb = (__u32 *)PAGE_POINTER(&tp->iscpb_ptr->trc_scgb_ptr);
1833         *iscpb = (__u32)(SWAP_WORDS(TRC_POINTER(tp->scgb_ptr)));
1834
1835         smctr_set_page(dev, (__u8 *)tp->ram_access);
1836
1837         /* Initialize System Configuration Pointers. (SCP) */
1838         tp->scgb_ptr->config = (SCGB_ADDRESS_POINTER_FORMAT
1839                 | SCGB_MULTI_WORD_CONTROL | SCGB_DATA_FORMAT
1840                 | SCGB_BURST_LENGTH);
1841
1842         tp->scgb_ptr->trc_sclb_ptr      = TRC_POINTER(tp->sclb_ptr);
1843         tp->scgb_ptr->trc_acb_ptr       = TRC_POINTER(tp->acb_head);
1844         tp->scgb_ptr->trc_isb_ptr       = TRC_POINTER(tp->isb_ptr);
1845         tp->scgb_ptr->isbsiz            = (sizeof(ISBlock)) - 2;
1846
1847         /* Initialize System Control Block. (SCB) */
1848         tp->sclb_ptr->valid_command    = SCLB_VALID | SCLB_CMD_NOP;
1849         tp->sclb_ptr->iack_code        = 0;
1850         tp->sclb_ptr->resume_control   = 0;
1851         tp->sclb_ptr->int_mask_control = 0;
1852         tp->sclb_ptr->int_mask_state   = 0;
1853
1854         /* Initialize Interrupt Status Block. (ISB) */
1855         for(i = 0; i < NUM_OF_INTERRUPTS; i++)
1856         {
1857                 tp->isb_ptr->IStatus[i].IType = 0xf0;
1858                 tp->isb_ptr->IStatus[i].ISubtype = 0;
1859         }
1860
1861         tp->current_isb_index = 0;
1862
1863         /* Initialize Action Command Block. (ACB) */
1864         smctr_init_acbs(dev);
1865
1866         /* Initialize transmit FCB's and BDB's. */
1867         smctr_link_tx_fcbs_to_bdbs(dev);
1868         smctr_init_tx_bdbs(dev);
1869         smctr_init_tx_fcbs(dev);
1870
1871         /* Initialize receive FCB's and BDB's. */
1872         smctr_init_rx_bdbs(dev);
1873         smctr_init_rx_fcbs(dev);
1874
1875         return (0);
1876 }
1877
1878 static int smctr_init_tx_bdbs(struct net_device *dev)
1879 {
1880         struct net_local *tp = netdev_priv(dev);
1881         unsigned int i, j;
1882         BDBlock *bdb;
1883
1884         for(i = 0; i < NUM_TX_QS_USED; i++)
1885         {
1886                 bdb = tp->tx_bdb_head[i];
1887                 bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
1888                 bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
1889                 bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1890
1891                 for(j = 1; j < tp->num_tx_bdbs[i]; j++)
1892                 {
1893                         bdb->next_ptr->back_ptr = bdb;
1894                         bdb = bdb->next_ptr;
1895                         bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
1896                         bdb->next_ptr
1897                                 = (BDBlock *)(((char *)bdb) + sizeof( BDBlock));                        bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1898                 }
1899
1900                 bdb->next_ptr = tp->tx_bdb_head[i];
1901                 bdb->trc_next_ptr = TRC_POINTER(tp->tx_bdb_head[i]);
1902                 tp->tx_bdb_head[i]->back_ptr = bdb;
1903         }
1904
1905         return (0);
1906 }
1907
1908 static int smctr_init_tx_fcbs(struct net_device *dev)
1909 {
1910         struct net_local *tp = netdev_priv(dev);
1911         unsigned int i, j;
1912         FCBlock *fcb;
1913
1914         for(i = 0; i < NUM_TX_QS_USED; i++)
1915         {
1916                 fcb               = tp->tx_fcb_head[i];
1917                 fcb->frame_status = 0;
1918                 fcb->frame_length = 0;
1919                 fcb->info         = FCB_CHAIN_END;
1920                 fcb->next_ptr = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
1921                 fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1922
1923                 for(j = 1; j < tp->num_tx_fcbs[i]; j++)
1924                 {
1925                         fcb->next_ptr->back_ptr = fcb;
1926                         fcb                     = fcb->next_ptr;
1927                         fcb->frame_status       = 0;
1928                         fcb->frame_length       = 0;
1929                         fcb->info               = FCB_CHAIN_END;
1930                         fcb->next_ptr
1931                                 = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
1932                         fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1933                 }
1934
1935                 fcb->next_ptr           = tp->tx_fcb_head[i];
1936                 fcb->trc_next_ptr       = TRC_POINTER(tp->tx_fcb_head[i]);
1937
1938                 tp->tx_fcb_head[i]->back_ptr    = fcb;
1939                 tp->tx_fcb_end[i]               = tp->tx_fcb_head[i]->next_ptr;
1940                 tp->tx_fcb_curr[i]              = tp->tx_fcb_head[i]->next_ptr;
1941                 tp->num_tx_fcbs_used[i]         = 0;
1942         }
1943
1944         return (0);
1945 }
1946
1947 static int smctr_internal_self_test(struct net_device *dev)
1948 {
1949         struct net_local *tp = netdev_priv(dev);
1950         int err;
1951
1952         if((err = smctr_issue_test_internal_rom_cmd(dev)))
1953                 return (err);
1954
1955         if((err = smctr_wait_cmd(dev)))
1956                 return (err);
1957
1958         if(tp->acb_head->cmd_done_status & 0xff)
1959                 return (-1);
1960
1961         if((err = smctr_issue_test_hic_cmd(dev)))
1962                 return (err);
1963
1964         if((err = smctr_wait_cmd(dev)))
1965                 return (err);
1966
1967         if(tp->acb_head->cmd_done_status & 0xff)
1968                 return (-1);
1969
1970         if((err = smctr_issue_test_mac_reg_cmd(dev)))
1971                 return (err);
1972
1973         if((err = smctr_wait_cmd(dev)))
1974                 return (err);
1975
1976         if(tp->acb_head->cmd_done_status & 0xff)
1977                 return (-1);
1978
1979         return (0);
1980 }
1981
1982 /*
1983  * The typical workload of the driver: Handle the network interface interrupts.
1984  */
1985 static irqreturn_t smctr_interrupt(int irq, void *dev_id)
1986 {
1987         struct net_device *dev = dev_id;
1988         struct net_local *tp;
1989         int ioaddr;
1990         __u16 interrupt_unmask_bits = 0, interrupt_ack_code = 0xff00;
1991         __u16 err1, err = NOT_MY_INTERRUPT;
1992         __u8 isb_type, isb_subtype;
1993         __u16 isb_index;
1994
1995         ioaddr = dev->base_addr;
1996         tp = netdev_priv(dev);
1997
1998         if(tp->status == NOT_INITIALIZED)
1999                 return IRQ_NONE;
2000
2001         spin_lock(&tp->lock);
2002         
2003         smctr_disable_bic_int(dev);
2004         smctr_enable_16bit(dev);
2005
2006         smctr_clear_int(dev);
2007
2008         /* First read the LSB */
2009         while((tp->isb_ptr->IStatus[tp->current_isb_index].IType & 0xf0) == 0)
2010         {
2011                 isb_index       = tp->current_isb_index;
2012                 isb_type        = tp->isb_ptr->IStatus[isb_index].IType;
2013                 isb_subtype     = tp->isb_ptr->IStatus[isb_index].ISubtype;
2014
2015                 (tp->current_isb_index)++;
2016                 if(tp->current_isb_index == NUM_OF_INTERRUPTS)
2017                         tp->current_isb_index = 0;
2018
2019                 if(isb_type >= 0x10)
2020                 {
2021                         smctr_disable_16bit(dev);
2022                         spin_unlock(&tp->lock);
2023                         return IRQ_HANDLED;
2024                 }
2025
2026                 err = HARDWARE_FAILED;
2027                 interrupt_ack_code = isb_index;
2028                 tp->isb_ptr->IStatus[isb_index].IType |= 0xf0;
2029
2030                 interrupt_unmask_bits |= (1 << (__u16)isb_type);
2031
2032                 switch(isb_type)
2033                 {
2034                         case ISB_IMC_MAC_TYPE_3:
2035                                 smctr_disable_16bit(dev);
2036
2037                                 switch(isb_subtype)
2038                                 {
2039                                         case 0:
2040                                                 tp->monitor_state = MS_MONITOR_FSM_INACTIVE;
2041                                                break;
2042
2043                                         case 1:
2044                                                 tp->monitor_state = MS_REPEAT_BEACON_STATE;
2045                                                 break;
2046
2047                                         case 2:
2048                                                 tp->monitor_state = MS_REPEAT_CLAIM_TOKEN_STATE;
2049                                                 break;
2050
2051                                         case 3:
2052                                                 tp->monitor_state = MS_TRANSMIT_CLAIM_TOKEN_STATE;                                                break;
2053
2054                                         case 4:
2055                                                 tp->monitor_state = MS_STANDBY_MONITOR_STATE;
2056                                                 break;
2057
2058                                         case 5:
2059                                                 tp->monitor_state = MS_TRANSMIT_BEACON_STATE;
2060                                                 break;
2061
2062                                         case 6:
2063                                                 tp->monitor_state = MS_ACTIVE_MONITOR_STATE;
2064                                                 break;
2065
2066                                         case 7:
2067                                                 tp->monitor_state = MS_TRANSMIT_RING_PURGE_STATE;
2068                                                 break;
2069
2070                                         case 8:   /* diagnostic state */
2071                                                 break;
2072
2073                                         case 9:
2074                                                 tp->monitor_state = MS_BEACON_TEST_STATE;
2075                                                 if(smctr_lobe_media_test(dev))
2076                                                 {
2077                                                         tp->ring_status_flags = RING_STATUS_CHANGED;
2078                                                         tp->ring_status = AUTO_REMOVAL_ERROR;
2079                                                         smctr_ring_status_chg(dev);
2080                                                         smctr_bypass_state(dev);
2081                                                 }
2082                                                 else
2083                                                         smctr_issue_insert_cmd(dev);
2084                                                 break;
2085
2086                                         /* case 0x0a-0xff, illegal states */
2087                                         default:
2088                                                 break;
2089                                 }
2090
2091                                 tp->ring_status_flags = MONITOR_STATE_CHANGED;
2092                                 err = smctr_ring_status_chg(dev);
2093
2094                                 smctr_enable_16bit(dev);
2095                                 break;
2096
2097                         /* Type 0x02 - MAC Error Counters Interrupt
2098                          * One or more MAC Error Counter is half full
2099                          *      MAC Error Counters
2100                          *      Lost_FR_Error_Counter
2101                          *      RCV_Congestion_Counter
2102                          *      FR_copied_Error_Counter
2103                          *      FREQ_Error_Counter
2104                          *      Token_Error_Counter
2105                          *      Line_Error_Counter
2106                          *      Internal_Error_Count
2107                          */
2108                         case ISB_IMC_MAC_ERROR_COUNTERS:
2109                                 /* Read 802.5 Error Counters */
2110                                 err = smctr_issue_read_ring_status_cmd(dev);
2111                                 break;
2112
2113                         /* Type 0x04 - MAC Type 2 Interrupt
2114                          * HOST needs to enqueue MAC Frame for transmission
2115                          * SubType Bit 15 - RQ_INIT_PDU( Request Initialization)                         * Changed from RQ_INIT_PDU to
2116                          * TRC_Status_Changed_Indicate
2117                          */
2118                         case ISB_IMC_MAC_TYPE_2:
2119                                 err = smctr_issue_read_ring_status_cmd(dev);
2120                                 break;
2121
2122
2123                         /* Type 0x05 - TX Frame Interrupt (FI). */
2124                         case ISB_IMC_TX_FRAME:
2125                                 /* BUG QUEUE for TRC stuck receive BUG */
2126                                 if(isb_subtype & TX_PENDING_PRIORITY_2)
2127                                 {
2128                                         if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS)
2129                                                 break;
2130                                 }
2131
2132                                 /* NON-MAC frames only */
2133                                 if(isb_subtype & TX_PENDING_PRIORITY_1)
2134                                 {
2135                                         if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS)
2136                                                 break;
2137                                 }
2138
2139                                 /* MAC frames only */
2140                                 if(isb_subtype & TX_PENDING_PRIORITY_0)
2141                                         err = smctr_tx_complete(dev, MAC_QUEUE);                                break;
2142
2143                         /* Type 0x06 - TX END OF QUEUE (FE) */
2144                         case ISB_IMC_END_OF_TX_QUEUE:
2145                                 /* BUG queue */
2146                                 if(isb_subtype & TX_PENDING_PRIORITY_2)
2147                                 {
2148                                         /* ok to clear Receive FIFO overrun
2149                                          * imask send_BUG now completes.
2150                                          */
2151                                         interrupt_unmask_bits |= 0x800;
2152
2153                                         tp->tx_queue_status[BUG_QUEUE] = NOT_TRANSMITING;
2154                                         if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS)
2155                                                 break;
2156                                         if((err = smctr_restart_tx_chain(dev, BUG_QUEUE)) != SUCCESS)
2157                                                 break;
2158                                 }
2159
2160                                 /* NON-MAC queue only */
2161                                 if(isb_subtype & TX_PENDING_PRIORITY_1)
2162                                 {
2163                                         tp->tx_queue_status[NON_MAC_QUEUE] = NOT_TRANSMITING;
2164                                         if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS)
2165                                                 break;
2166                                         if((err = smctr_restart_tx_chain(dev, NON_MAC_QUEUE)) != SUCCESS)
2167                                                 break;
2168                                 }
2169
2170                                 /* MAC queue only */
2171                                 if(isb_subtype & TX_PENDING_PRIORITY_0)
2172                                 {
2173                                         tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
2174                                         if((err = smctr_tx_complete(dev, MAC_QUEUE)) != SUCCESS)
2175                                                 break;
2176
2177                                         err = smctr_restart_tx_chain(dev, MAC_QUEUE);
2178                                 }
2179                                 break;
2180
2181                         /* Type 0x07 - NON-MAC RX Resource Interrupt
2182                          *   Subtype bit 12 - (BW) BDB warning
2183                          *   Subtype bit 13 - (FW) FCB warning
2184                          *   Subtype bit 14 - (BE) BDB End of chain
2185                          *   Subtype bit 15 - (FE) FCB End of chain
2186                          */
2187                         case ISB_IMC_NON_MAC_RX_RESOURCE:
2188                                 tp->rx_fifo_overrun_count = 0;
2189                                 tp->receive_queue_number = NON_MAC_QUEUE;
2190                                 err1 = smctr_rx_frame(dev);
2191
2192                                 if(isb_subtype & NON_MAC_RX_RESOURCE_FE)
2193                                 {
2194                                         if((err = smctr_issue_resume_rx_fcb_cmd(                                                dev, NON_MAC_QUEUE)) != SUCCESS)                                                break;
2195
2196                                         if(tp->ptr_rx_fcb_overruns)
2197                                                 (*tp->ptr_rx_fcb_overruns)++;
2198                                 }
2199
2200                                 if(isb_subtype & NON_MAC_RX_RESOURCE_BE)
2201                                 {
2202                                         if((err = smctr_issue_resume_rx_bdb_cmd(                                                dev, NON_MAC_QUEUE)) != SUCCESS)                                                break;
2203
2204                                         if(tp->ptr_rx_bdb_overruns)
2205                                                 (*tp->ptr_rx_bdb_overruns)++;
2206                                 }
2207                                 err = err1;
2208                                 break;
2209
2210                         /* Type 0x08 - MAC RX Resource Interrupt
2211                          *   Subtype bit 12 - (BW) BDB warning
2212                          *   Subtype bit 13 - (FW) FCB warning
2213                          *   Subtype bit 14 - (BE) BDB End of chain
2214                          *   Subtype bit 15 - (FE) FCB End of chain
2215                          */
2216                         case ISB_IMC_MAC_RX_RESOURCE:
2217                                 tp->receive_queue_number = MAC_QUEUE;
2218                                 err1 = smctr_rx_frame(dev);
2219
2220                                 if(isb_subtype & MAC_RX_RESOURCE_FE)
2221                                 {
2222                                         if((err = smctr_issue_resume_rx_fcb_cmd(                                                dev, MAC_QUEUE)) != SUCCESS)
2223                                                 break;
2224
2225                                         if(tp->ptr_rx_fcb_overruns)
2226                                                 (*tp->ptr_rx_fcb_overruns)++;
2227                                 }
2228
2229                                 if(isb_subtype & MAC_RX_RESOURCE_BE)
2230                                 {
2231                                         if((err = smctr_issue_resume_rx_bdb_cmd(                                                dev, MAC_QUEUE)) != SUCCESS)
2232                                                 break;
2233
2234                                         if(tp->ptr_rx_bdb_overruns)
2235                                                 (*tp->ptr_rx_bdb_overruns)++;
2236                                 }
2237                                 err = err1;
2238                                 break;
2239
2240                         /* Type 0x09 - NON_MAC RX Frame Interrupt */
2241                         case ISB_IMC_NON_MAC_RX_FRAME:
2242                                 tp->rx_fifo_overrun_count = 0;
2243                                 tp->receive_queue_number = NON_MAC_QUEUE;
2244                                 err = smctr_rx_frame(dev);
2245                                 break;
2246
2247                         /* Type 0x0A - MAC RX Frame Interrupt */
2248                         case ISB_IMC_MAC_RX_FRAME:
2249                                 tp->receive_queue_number = MAC_QUEUE;
2250                                 err = smctr_rx_frame(dev);
2251                                 break;
2252
2253                         /* Type 0x0B - TRC status
2254                          * TRC has encountered an error condition
2255                          * subtype bit 14 - transmit FIFO underrun
2256                          * subtype bit 15 - receive FIFO overrun
2257                          */
2258                         case ISB_IMC_TRC_FIFO_STATUS:
2259                                 if(isb_subtype & TRC_FIFO_STATUS_TX_UNDERRUN)
2260                                 {
2261                                         if(tp->ptr_tx_fifo_underruns)
2262                                                 (*tp->ptr_tx_fifo_underruns)++;
2263                                 }
2264
2265                                 if(isb_subtype & TRC_FIFO_STATUS_RX_OVERRUN)
2266                                 {
2267                                         /* update overrun stuck receive counter
2268                                          * if >= 3, has to clear it by sending
2269                                          * back to back frames. We pick
2270                                          * DAT(duplicate address MAC frame)
2271                                          */
2272                                         tp->rx_fifo_overrun_count++;
2273
2274                                         if(tp->rx_fifo_overrun_count >= 3)
2275                                         {
2276                                                 tp->rx_fifo_overrun_count = 0;
2277
2278                                                 /* delay clearing fifo overrun
2279                                                  * imask till send_BUG tx
2280                                                  * complete posted
2281                                                  */
2282                                                 interrupt_unmask_bits &= (~0x800);
2283                                                 printk(KERN_CRIT "Jay please send bug\n");//                                              smctr_send_bug(dev);
2284                                         }
2285
2286                                         if(tp->ptr_rx_fifo_overruns)
2287                                                 (*tp->ptr_rx_fifo_overruns)++;
2288                                 }
2289
2290                                 err = SUCCESS;
2291                                 break;
2292
2293                         /* Type 0x0C - Action Command Status Interrupt
2294                          * Subtype bit 14 - CB end of command chain (CE)
2295                          * Subtype bit 15 - CB command interrupt (CI)
2296                          */
2297                         case ISB_IMC_COMMAND_STATUS:
2298                                 err = SUCCESS;
2299                                 if(tp->acb_head->cmd == ACB_CMD_HIC_NOP)
2300                                 {
2301                                         printk(KERN_ERR "i1\n");
2302                                         smctr_disable_16bit(dev);
2303
2304                                         /* XXXXXXXXXXXXXXXXX */
2305                                 /*      err = UM_Interrupt(dev); */
2306
2307                                         smctr_enable_16bit(dev);
2308                                 }
2309                                 else
2310                                 {
2311                                         if((tp->acb_head->cmd
2312                                                 == ACB_CMD_READ_TRC_STATUS)
2313                                                 && (tp->acb_head->subcmd
2314                                                 == RW_TRC_STATUS_BLOCK))
2315                                         {
2316                                                 if(tp->ptr_bcn_type)
2317                                                 {
2318                                                         *(tp->ptr_bcn_type)
2319                                                                 = (__u32)((SBlock *)tp->misc_command_data)->BCN_Type;
2320                                                 }
2321
2322                                                 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & ERROR_COUNTERS_CHANGED)
2323                                                 {
2324                                                         smctr_update_err_stats(dev);
2325                                                 }
2326
2327                                                 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & TI_NDIS_RING_STATUS_CHANGED)
2328                                                 {
2329                                                         tp->ring_status
2330                                                                 = ((SBlock*)tp->misc_command_data)->TI_NDIS_Ring_Status;
2331                                                         smctr_disable_16bit(dev);
2332                                                         err = smctr_ring_status_chg(dev);
2333                                                         smctr_enable_16bit(dev);
2334                                                         if((tp->ring_status & REMOVE_RECEIVED)
2335                                                                 && (tp->config_word0 & NO_AUTOREMOVE))
2336                                                         {
2337                                                                 smctr_issue_remove_cmd(dev);
2338                                                         }
2339
2340                                                         if(err != SUCCESS)
2341                                                         {
2342                                                                 tp->acb_pending = 0;
2343                                                                 break;
2344                                                         }
2345                                                 }
2346
2347                                                 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & UNA_CHANGED)
2348                                                 {
2349                                                         if(tp->ptr_una)
2350                                                         {
2351                                                                 tp->ptr_una[0] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[0]);
2352                                                                 tp->ptr_una[1] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[1]);
2353                                                                 tp->ptr_una[2] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[2]);
2354                                                         }
2355
2356                                                 }
2357
2358                                                 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & READY_TO_SEND_RQ_INIT)                                                {
2359                                                         err = smctr_send_rq_init(dev);
2360                                                 }
2361                                         }
2362                                 }
2363
2364                                 tp->acb_pending = 0;
2365                                 break;
2366
2367                         /* Type 0x0D - MAC Type 1 interrupt
2368                          * Subtype -- 00 FR_BCN received at S12
2369                          *            01 FR_BCN received at S21
2370                          *            02 FR_DAT(DA=MA, A<>0) received at S21
2371                          *            03 TSM_EXP at S21
2372                          *            04 FR_REMOVE received at S42
2373                          *            05 TBR_EXP, BR_FLAG_SET at S42
2374                          *            06 TBT_EXP at S53
2375                          */
2376                         case ISB_IMC_MAC_TYPE_1:
2377                                 if(isb_subtype > 8)
2378                                 {
2379                                         err = HARDWARE_FAILED;
2380                                         break;
2381                                 }
2382
2383                                 err = SUCCESS;
2384                                 switch(isb_subtype)
2385                                 {
2386                                         case 0:
2387                                                 tp->join_state = JS_BYPASS_STATE;
2388                                                 if(tp->status != CLOSED)
2389                                                 {
2390                                                         tp->status = CLOSED;
2391                                                         err = smctr_status_chg(dev);
2392                                                 }
2393                                                 break;
2394
2395                                         case 1:
2396                                                 tp->join_state = JS_LOBE_TEST_STATE;
2397                                                 break;
2398
2399                                         case 2:
2400                                                 tp->join_state = JS_DETECT_MONITOR_PRESENT_STATE;
2401                                                 break;
2402
2403                                         case 3:
2404                                                 tp->join_state = JS_AWAIT_NEW_MONITOR_STATE;
2405                                                 break;
2406
2407                                         case 4:
2408                                                 tp->join_state = JS_DUPLICATE_ADDRESS_TEST_STATE;
2409                                                 break;
2410
2411                                         case 5:
2412                                                 tp->join_state = JS_NEIGHBOR_NOTIFICATION_STATE;
2413                                                 break;
2414
2415                                         case 6:
2416                                                 tp->join_state = JS_REQUEST_INITIALIZATION_STATE;
2417                                                 break;
2418
2419                                         case 7:
2420                                                 tp->join_state = JS_JOIN_COMPLETE_STATE;
2421                                                 tp->status = OPEN;
2422                                                 err = smctr_status_chg(dev);
2423                                                 break;
2424
2425                                         case 8:
2426                                                 tp->join_state = JS_BYPASS_WAIT_STATE;
2427                                                 break;
2428                                 }
2429                                 break ;
2430
2431                         /* Type 0x0E - TRC Initialization Sequence Interrupt
2432                          * Subtype -- 00-FF Initializatin sequence complete
2433                          */
2434                         case ISB_IMC_TRC_INTRNL_TST_STATUS:
2435                                 tp->status = INITIALIZED;
2436                                 smctr_disable_16bit(dev);
2437                                 err = smctr_status_chg(dev);
2438                                 smctr_enable_16bit(dev);
2439                                 break;
2440
2441                         /* other interrupt types, illegal */
2442                         default:
2443                                 break;
2444                 }
2445
2446                 if(err != SUCCESS)
2447                         break;
2448         }
2449
2450         /* Checking the ack code instead of the unmask bits here is because :
2451          * while fixing the stuck receive, DAT frame are sent and mask off
2452          * FIFO overrun interrupt temporarily (interrupt_unmask_bits = 0)
2453          * but we still want to issue ack to ISB
2454          */
2455         if(!(interrupt_ack_code & 0xff00))
2456                 smctr_issue_int_ack(dev, interrupt_ack_code, interrupt_unmask_bits);
2457
2458         smctr_disable_16bit(dev);
2459         smctr_enable_bic_int(dev);
2460         spin_unlock(&tp->lock);
2461
2462         return IRQ_HANDLED;
2463 }
2464
2465 static int smctr_issue_enable_int_cmd(struct net_device *dev,
2466         __u16 interrupt_enable_mask)
2467 {
2468         struct net_local *tp = netdev_priv(dev);
2469         int err;
2470
2471         if((err = smctr_wait_while_cbusy(dev)))
2472                 return (err);
2473
2474         tp->sclb_ptr->int_mask_control  = interrupt_enable_mask;
2475         tp->sclb_ptr->valid_command     = SCLB_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK;
2476
2477         smctr_set_ctrl_attention(dev);
2478
2479         return (0);
2480 }
2481
2482 static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code, __u16 ibits)
2483 {
2484         struct net_local *tp = netdev_priv(dev);
2485
2486         if(smctr_wait_while_cbusy(dev))
2487                 return (-1);
2488
2489         tp->sclb_ptr->int_mask_control = ibits;
2490         tp->sclb_ptr->iack_code = iack_code << 1; /* use the offset from base */        tp->sclb_ptr->resume_control = 0;
2491         tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_IACK_CODE_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK;
2492
2493         smctr_set_ctrl_attention(dev);
2494
2495         return (0);
2496 }
2497
2498 static int smctr_issue_init_timers_cmd(struct net_device *dev)
2499 {
2500         struct net_local *tp = netdev_priv(dev);
2501         unsigned int i;
2502         int err;
2503         __u16 *pTimer_Struc = (__u16 *)tp->misc_command_data;
2504
2505         if((err = smctr_wait_while_cbusy(dev)))
2506                 return (err);
2507
2508         if((err = smctr_wait_cmd(dev)))
2509                 return (err);
2510
2511         tp->config_word0 = THDREN | DMA_TRIGGER | USETPT | NO_AUTOREMOVE;
2512         tp->config_word1 = 0;
2513
2514         if((tp->media_type == MEDIA_STP_16)
2515                 || (tp->media_type == MEDIA_UTP_16)
2516                 || (tp->media_type == MEDIA_STP_16_UTP_16))
2517         {
2518                 tp->config_word0 |= FREQ_16MB_BIT;
2519         }
2520
2521         if(tp->mode_bits & EARLY_TOKEN_REL)
2522                 tp->config_word0 |= ETREN;
2523
2524         if(tp->mode_bits & LOOPING_MODE_MASK)
2525                 tp->config_word0 |= RX_OWN_BIT;
2526         else
2527                 tp->config_word0 &= ~RX_OWN_BIT;
2528
2529         if(tp->receive_mask & PROMISCUOUS_MODE)
2530                 tp->config_word0 |= PROMISCUOUS_BIT;
2531         else
2532                 tp->config_word0 &= ~PROMISCUOUS_BIT;
2533
2534         if(tp->receive_mask & ACCEPT_ERR_PACKETS)
2535                 tp->config_word0 |= SAVBAD_BIT;
2536         else
2537                 tp->config_word0 &= ~SAVBAD_BIT;
2538
2539         if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
2540                 tp->config_word0 |= RXATMAC;
2541         else
2542                 tp->config_word0 &= ~RXATMAC;
2543
2544         if(tp->receive_mask & ACCEPT_MULTI_PROM)
2545                 tp->config_word1 |= MULTICAST_ADDRESS_BIT;
2546         else
2547                 tp->config_word1 &= ~MULTICAST_ADDRESS_BIT;
2548
2549         if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING)
2550                 tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS;
2551         else
2552         {
2553                 if(tp->receive_mask & ACCEPT_SOURCE_ROUTING)
2554                         tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT;
2555                 else
2556                         tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS;
2557         }
2558
2559         if((tp->media_type == MEDIA_STP_16)
2560                 || (tp->media_type == MEDIA_UTP_16)
2561                 || (tp->media_type == MEDIA_STP_16_UTP_16))
2562         {
2563                 tp->config_word1 |= INTERFRAME_SPACING_16;
2564         }
2565         else
2566                 tp->config_word1 |= INTERFRAME_SPACING_4;
2567
2568         *pTimer_Struc++ = tp->config_word0;
2569         *pTimer_Struc++ = tp->config_word1;
2570
2571         if((tp->media_type == MEDIA_STP_4)
2572                 || (tp->media_type == MEDIA_UTP_4)
2573                 || (tp->media_type == MEDIA_STP_4_UTP_4))
2574         {
2575                 *pTimer_Struc++ = 0x00FA;       /* prescale */
2576                 *pTimer_Struc++ = 0x2710;       /* TPT_limit */
2577                 *pTimer_Struc++ = 0x2710;       /* TQP_limit */
2578                 *pTimer_Struc++ = 0x0A28;       /* TNT_limit */
2579                 *pTimer_Struc++ = 0x3E80;       /* TBT_limit */
2580                 *pTimer_Struc++ = 0x3A98;       /* TSM_limit */
2581                 *pTimer_Struc++ = 0x1B58;       /* TAM_limit */
2582                 *pTimer_Struc++ = 0x00C8;       /* TBR_limit */
2583                 *pTimer_Struc++ = 0x07D0;       /* TER_limit */
2584                 *pTimer_Struc++ = 0x000A;       /* TGT_limit */
2585                 *pTimer_Struc++ = 0x1162;       /* THT_limit */
2586                 *pTimer_Struc++ = 0x07D0;       /* TRR_limit */
2587                 *pTimer_Struc++ = 0x1388;       /* TVX_limit */
2588                 *pTimer_Struc++ = 0x0000;       /* reserved */
2589         }
2590         else
2591         {
2592                 *pTimer_Struc++ = 0x03E8;       /* prescale */
2593                 *pTimer_Struc++ = 0x9C40;       /* TPT_limit */
2594                 *pTimer_Struc++ = 0x9C40;       /* TQP_limit */
2595                 *pTimer_Struc++ = 0x0A28;       /* TNT_limit */
2596                 *pTimer_Struc++ = 0x3E80;       /* TBT_limit */
2597                 *pTimer_Struc++ = 0x3A98;       /* TSM_limit */
2598                 *pTimer_Struc++ = 0x1B58;       /* TAM_limit */
2599                 *pTimer_Struc++ = 0x00C8;       /* TBR_limit */
2600                 *pTimer_Struc++ = 0x07D0;       /* TER_limit */
2601                 *pTimer_Struc++ = 0x000A;       /* TGT_limit */
2602                 *pTimer_Struc++ = 0x4588;       /* THT_limit */
2603                 *pTimer_Struc++ = 0x1F40;       /* TRR_limit */
2604                 *pTimer_Struc++ = 0x4E20;       /* TVX_limit */
2605                 *pTimer_Struc++ = 0x0000;       /* reserved */
2606         }
2607
2608         /* Set node address. */
2609         *pTimer_Struc++ = dev->dev_addr[0] << 8
2610                 | (dev->dev_addr[1] & 0xFF);
2611         *pTimer_Struc++ = dev->dev_addr[2] << 8
2612                 | (dev->dev_addr[3] & 0xFF);
2613         *pTimer_Struc++ = dev->dev_addr[4] << 8
2614                 | (dev->dev_addr[5] & 0xFF);
2615
2616         /* Set group address. */
2617         *pTimer_Struc++ = tp->group_address_0 << 8
2618                 | tp->group_address_0 >> 8;
2619         *pTimer_Struc++ = tp->group_address[0] << 8
2620                 | tp->group_address[0] >> 8;
2621         *pTimer_Struc++ = tp->group_address[1] << 8
2622                 | tp->group_address[1] >> 8;
2623
2624         /* Set functional address. */
2625         *pTimer_Struc++ = tp->functional_address_0 << 8
2626                 | tp->functional_address_0 >> 8;
2627         *pTimer_Struc++ = tp->functional_address[0] << 8
2628                 | tp->functional_address[0] >> 8;
2629         *pTimer_Struc++ = tp->functional_address[1] << 8
2630                 | tp->functional_address[1] >> 8;
2631
2632         /* Set Bit-Wise group address. */
2633         *pTimer_Struc++ = tp->bitwise_group_address[0] << 8
2634                 | tp->bitwise_group_address[0] >> 8;
2635         *pTimer_Struc++ = tp->bitwise_group_address[1] << 8
2636                 | tp->bitwise_group_address[1] >> 8;
2637
2638         /* Set ring number address. */
2639         *pTimer_Struc++ = tp->source_ring_number;
2640         *pTimer_Struc++ = tp->target_ring_number;
2641
2642         /* Physical drop number. */
2643         *pTimer_Struc++ = (unsigned short)0;
2644         *pTimer_Struc++ = (unsigned short)0;
2645
2646         /* Product instance ID. */
2647         for(i = 0; i < 9; i++)
2648                 *pTimer_Struc++ = (unsigned short)0;
2649
2650         err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TRC_TIMERS, 0);
2651
2652         return (err);
2653 }
2654
2655 static int smctr_issue_init_txrx_cmd(struct net_device *dev)
2656 {
2657         struct net_local *tp = netdev_priv(dev);
2658         unsigned int i;
2659         int err;
2660         void **txrx_ptrs = (void *)tp->misc_command_data;
2661
2662         if((err = smctr_wait_while_cbusy(dev)))
2663                 return (err);
2664
2665         if((err = smctr_wait_cmd(dev)))
2666         {
2667                 printk(KERN_ERR "%s: Hardware failure\n", dev->name);
2668                 return (err);
2669         }
2670
2671         /* Initialize Transmit Queue Pointers that are used, to point to
2672          * a single FCB.
2673          */
2674         for(i = 0; i < NUM_TX_QS_USED; i++)
2675                 *txrx_ptrs++ = (void *)TRC_POINTER(tp->tx_fcb_head[i]);
2676
2677         /* Initialize Transmit Queue Pointers that are NOT used to ZERO. */
2678         for(; i < MAX_TX_QS; i++)
2679                 *txrx_ptrs++ = (void *)0;
2680
2681         /* Initialize Receive Queue Pointers (MAC and Non-MAC) that are
2682          * used, to point to a single FCB and a BDB chain of buffers.
2683          */
2684         for(i = 0; i < NUM_RX_QS_USED; i++)
2685         {
2686                 *txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_fcb_head[i]);
2687                 *txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_bdb_head[i]);
2688         }
2689
2690         /* Initialize Receive Queue Pointers that are NOT used to ZERO. */
2691         for(; i < MAX_RX_QS; i++)
2692         {
2693                 *txrx_ptrs++ = (void *)0;
2694                 *txrx_ptrs++ = (void *)0;
2695         }
2696
2697         err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TX_RX, 0);
2698
2699         return (err);
2700 }
2701
2702 static int smctr_issue_insert_cmd(struct net_device *dev)
2703 {
2704         int err;
2705
2706         err = smctr_setup_single_cmd(dev, ACB_CMD_INSERT, ACB_SUB_CMD_NOP);
2707
2708         return (err);
2709 }
2710
2711 static int smctr_issue_read_ring_status_cmd(struct net_device *dev)
2712 {
2713         int err;
2714
2715         if((err = smctr_wait_while_cbusy(dev)))
2716                 return (err);
2717
2718         if((err = smctr_wait_cmd(dev)))
2719                 return (err);
2720
2721         err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_READ_TRC_STATUS,
2722                 RW_TRC_STATUS_BLOCK);
2723
2724         return (err);
2725 }
2726
2727 static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt)
2728 {
2729         int err;
2730
2731         if((err = smctr_wait_while_cbusy(dev)))
2732                 return (err);
2733
2734         if((err = smctr_wait_cmd(dev)))
2735                 return (err);
2736
2737         err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_READ_VALUE,
2738                 aword_cnt);
2739
2740         return (err);
2741 }
2742
2743 static int smctr_issue_remove_cmd(struct net_device *dev)
2744 {
2745         struct net_local *tp = netdev_priv(dev);
2746         int err;
2747
2748         if((err = smctr_wait_while_cbusy(dev)))
2749                 return (err);
2750
2751         tp->sclb_ptr->resume_control    = 0;
2752         tp->sclb_ptr->valid_command     = SCLB_VALID | SCLB_CMD_REMOVE;
2753
2754         smctr_set_ctrl_attention(dev);
2755
2756         return (0);
2757 }
2758
2759 static int smctr_issue_resume_acb_cmd(struct net_device *dev)
2760 {
2761         struct net_local *tp = netdev_priv(dev);
2762         int err;
2763
2764         if((err = smctr_wait_while_cbusy(dev)))
2765                 return (err);
2766
2767         tp->sclb_ptr->resume_control = SCLB_RC_ACB;
2768         tp->sclb_ptr->valid_command  = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
2769
2770         tp->acb_pending = 1;
2771
2772         smctr_set_ctrl_attention(dev);
2773
2774         return (0);
2775 }
2776
2777 static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue)
2778 {
2779         struct net_local *tp = netdev_priv(dev);
2780         int err;
2781
2782         if((err = smctr_wait_while_cbusy(dev)))
2783                 return (err);
2784
2785         if(queue == MAC_QUEUE)
2786                 tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_BDB;
2787         else
2788                 tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_BDB;
2789
2790         tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
2791
2792         smctr_set_ctrl_attention(dev);
2793
2794         return (0);
2795 }
2796
2797 static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue)
2798 {
2799         struct net_local *tp = netdev_priv(dev);
2800
2801         if(smctr_debug > 10)
2802                 printk(KERN_DEBUG "%s: smctr_issue_resume_rx_fcb_cmd\n", dev->name);
2803
2804         if(smctr_wait_while_cbusy(dev))
2805                 return (-1);
2806
2807         if(queue == MAC_QUEUE)
2808                 tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_FCB;
2809         else
2810                 tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_FCB;
2811
2812         tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
2813
2814         smctr_set_ctrl_attention(dev);
2815
2816         return (0);
2817 }
2818
2819 static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue)
2820 {
2821         struct net_local *tp = netdev_priv(dev);
2822
2823         if(smctr_debug > 10)
2824                 printk(KERN_DEBUG "%s: smctr_issue_resume_tx_fcb_cmd\n", dev->name);
2825
2826         if(smctr_wait_while_cbusy(dev))
2827                 return (-1);
2828
2829         tp->sclb_ptr->resume_control = (SCLB_RC_TFCB0 << queue);
2830         tp->sclb_ptr->valid_command = SCLB_RESUME_CONTROL_VALID | SCLB_VALID;
2831
2832         smctr_set_ctrl_attention(dev);
2833
2834         return (0);
2835 }
2836
2837 static int smctr_issue_test_internal_rom_cmd(struct net_device *dev)
2838 {
2839         int err;
2840
2841         err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2842                 TRC_INTERNAL_ROM_TEST);
2843
2844         return (err);
2845 }
2846
2847 static int smctr_issue_test_hic_cmd(struct net_device *dev)
2848 {
2849         int err;
2850
2851         err = smctr_setup_single_cmd(dev, ACB_CMD_HIC_TEST,
2852                 TRC_HOST_INTERFACE_REG_TEST);
2853
2854         return (err);
2855 }
2856
2857 static int smctr_issue_test_mac_reg_cmd(struct net_device *dev)
2858 {
2859         int err;
2860
2861         err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2862                 TRC_MAC_REGISTERS_TEST);
2863
2864         return (err);
2865 }
2866
2867 static int smctr_issue_trc_loopback_cmd(struct net_device *dev)
2868 {
2869         int err;
2870
2871         err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2872                 TRC_INTERNAL_LOOPBACK);
2873
2874         return (err);
2875 }
2876
2877 static int smctr_issue_tri_loopback_cmd(struct net_device *dev)
2878 {
2879         int err;
2880
2881         err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2882                 TRC_TRI_LOOPBACK);
2883
2884         return (err);
2885 }
2886
2887 static int smctr_issue_write_byte_cmd(struct net_device *dev,
2888         short aword_cnt, void *byte)
2889 {
2890         struct net_local *tp = netdev_priv(dev);
2891         unsigned int iword, ibyte;
2892         int err;
2893
2894         if((err = smctr_wait_while_cbusy(dev)))
2895                 return (err);
2896
2897         if((err = smctr_wait_cmd(dev)))
2898                 return (err);
2899
2900         for(iword = 0, ibyte = 0; iword < (unsigned int)(aword_cnt & 0xff);
2901                 iword++, ibyte += 2)
2902         {
2903                 tp->misc_command_data[iword] = (*((__u8 *)byte + ibyte) << 8)
2904                         | (*((__u8 *)byte + ibyte + 1));
2905         }
2906
2907         return (smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE, 
2908                 aword_cnt));
2909 }
2910
2911 static int smctr_issue_write_word_cmd(struct net_device *dev,
2912         short aword_cnt, void *word)
2913 {
2914         struct net_local *tp = netdev_priv(dev);
2915         unsigned int i, err;
2916
2917         if((err = smctr_wait_while_cbusy(dev)))
2918                 return (err);
2919
2920         if((err = smctr_wait_cmd(dev)))
2921                 return (err);
2922
2923         for(i = 0; i < (unsigned int)(aword_cnt & 0xff); i++)
2924                 tp->misc_command_data[i] = *((__u16 *)word + i);
2925
2926         err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE,
2927                 aword_cnt);
2928
2929         return (err);
2930 }
2931
2932 static int smctr_join_complete_state(struct net_device *dev)
2933 {
2934         int err;
2935
2936         err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE,
2937                 JS_JOIN_COMPLETE_STATE);
2938
2939         return (err);
2940 }
2941
2942 static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev)
2943 {
2944         struct net_local *tp = netdev_priv(dev);
2945         unsigned int i, j;
2946         FCBlock *fcb;
2947         BDBlock *bdb;
2948
2949         for(i = 0; i < NUM_TX_QS_USED; i++)
2950         {
2951                 fcb = tp->tx_fcb_head[i];
2952                 bdb = tp->tx_bdb_head[i];
2953
2954                 for(j = 0; j < tp->num_tx_fcbs[i]; j++)
2955                 {
2956                         fcb->bdb_ptr            = bdb;
2957                         fcb->trc_bdb_ptr        = TRC_POINTER(bdb);
2958                         fcb = (FCBlock *)((char *)fcb + sizeof(FCBlock));
2959                         bdb = (BDBlock *)((char *)bdb + sizeof(BDBlock));
2960                 }
2961         }
2962
2963         return (0);
2964 }
2965
2966 static int smctr_load_firmware(struct net_device *dev)
2967 {
2968         struct net_local *tp = netdev_priv(dev);
2969         const struct firmware *fw;
2970         __u16 i, checksum = 0;
2971         int err = 0;
2972
2973         if(smctr_debug > 10)
2974                 printk(KERN_DEBUG "%s: smctr_load_firmware\n", dev->name);
2975
2976         if (request_firmware(&fw, "tr_smctr.bin", &dev->dev)) {
2977                 printk(KERN_ERR "%s: firmware not found\n", dev->name);
2978                 return (UCODE_NOT_PRESENT);
2979         }
2980
2981         tp->num_of_tx_buffs     = 4;
2982         tp->mode_bits          |= UMAC;
2983         tp->receive_mask        = 0;
2984         tp->max_packet_size     = 4177;
2985
2986         /* Can only upload the firmware once per adapter reset. */
2987         if (tp->microcode_version != 0) {
2988                 err = (UCODE_PRESENT);
2989                 goto out;
2990         }
2991
2992         /* Verify the firmware exists and is there in the right amount. */
2993         if (!fw->data
2994                 || (*(fw->data + UCODE_VERSION_OFFSET) < UCODE_VERSION))
2995         {
2996                 err = (UCODE_NOT_PRESENT);
2997                 goto out;
2998         }
2999
3000         /* UCODE_SIZE is not included in Checksum. */
3001         for(i = 0; i < *((__u16 *)(fw->data + UCODE_SIZE_OFFSET)); i += 2)
3002                 checksum += *((__u16 *)(fw->data + 2 + i));
3003         if (checksum) {
3004                 err = (UCODE_NOT_PRESENT);
3005                 goto out;
3006         }
3007
3008         /* At this point we have a valid firmware image, lets kick it on up. */
3009         smctr_enable_adapter_ram(dev);
3010         smctr_enable_16bit(dev);
3011         smctr_set_page(dev, (__u8 *)tp->ram_access);
3012
3013         if((smctr_checksum_firmware(dev))
3014                 || (*(fw->data + UCODE_VERSION_OFFSET)
3015                 > tp->microcode_version))
3016         {
3017                 smctr_enable_adapter_ctrl_store(dev);
3018
3019                 /* Zero out ram space for firmware. */
3020                 for(i = 0; i < CS_RAM_SIZE; i += 2)
3021                         *((__u16 *)(tp->ram_access + i)) = 0;
3022
3023                 smctr_decode_firmware(dev, fw);
3024
3025                 tp->microcode_version = *(fw->data + UCODE_VERSION_OFFSET);                *((__u16 *)(tp->ram_access + CS_RAM_VERSION_OFFSET))
3026                         = (tp->microcode_version << 8);
3027                 *((__u16 *)(tp->ram_access + CS_RAM_CHECKSUM_OFFSET))
3028                         = ~(tp->microcode_version << 8) + 1;
3029
3030                 smctr_disable_adapter_ctrl_store(dev);
3031
3032                 if(smctr_checksum_firmware(dev))
3033                         err = HARDWARE_FAILED;
3034         }
3035         else
3036                 err = UCODE_PRESENT;
3037
3038         smctr_disable_16bit(dev);
3039  out:
3040         release_firmware(fw);
3041         return (err);
3042 }
3043
3044 static int smctr_load_node_addr(struct net_device *dev)
3045 {
3046         int ioaddr = dev->base_addr;
3047         unsigned int i;
3048         __u8 r;
3049
3050         for(i = 0; i < 6; i++)
3051         {
3052                 r = inb(ioaddr + LAR0 + i);
3053                 dev->dev_addr[i] = (char)r;
3054         }
3055         dev->addr_len = 6;
3056
3057         return (0);
3058 }
3059
3060 /* Lobe Media Test.
3061  * During the transmission of the initial 1500 lobe media MAC frames,
3062  * the phase lock loop in the 805 chip may lock, and then un-lock, causing
3063  * the 825 to go into a PURGE state. When performing a PURGE, the MCT
3064  * microcode will not transmit any frames given to it by the host, and
3065  * will consequently cause a timeout.
3066  *
3067  * NOTE 1: If the monitor_state is MS_BEACON_TEST_STATE, all transmit
3068  * queues other than the one used for the lobe_media_test should be
3069  * disabled.!?
3070  *
3071  * NOTE 2: If the monitor_state is MS_BEACON_TEST_STATE and the receive_mask
3072  * has any multi-cast or promiscous bits set, the receive_mask needs to
3073  * be changed to clear the multi-cast or promiscous mode bits, the lobe_test
3074  * run, and then the receive mask set back to its original value if the test
3075  * is successful.
3076  */
3077 static int smctr_lobe_media_test(struct net_device *dev)
3078 {
3079         struct net_local *tp = netdev_priv(dev);
3080         unsigned int i, perror = 0;
3081         unsigned short saved_rcv_mask;
3082
3083         if(smctr_debug > 10)
3084                 printk(KERN_DEBUG "%s: smctr_lobe_media_test\n", dev->name);
3085
3086         /* Clear receive mask for lobe test. */
3087         saved_rcv_mask          = tp->receive_mask;
3088         tp->receive_mask        = 0;
3089
3090         smctr_chg_rx_mask(dev);
3091
3092         /* Setup the lobe media test. */
3093         smctr_lobe_media_test_cmd(dev);
3094         if(smctr_wait_cmd(dev))
3095                 goto err;
3096
3097         /* Tx lobe media test frames. */
3098         for(i = 0; i < 1500; ++i)
3099         {
3100                 if(smctr_send_lobe_media_test(dev))
3101                 {
3102                         if(perror)
3103                                 goto err;
3104                         else
3105                         {
3106                                 perror = 1;
3107                                 if(smctr_lobe_media_test_cmd(dev))
3108                                         goto err;
3109                         }
3110                 }
3111         }
3112
3113         if(smctr_send_dat(dev))
3114         {
3115                 if(smctr_send_dat(dev))
3116                         goto err;
3117         }
3118
3119         /* Check if any frames received during test. */
3120         if((tp->rx_fcb_curr[MAC_QUEUE]->frame_status)
3121                 || (tp->rx_fcb_curr[NON_MAC_QUEUE]->frame_status))
3122                         goto err;
3123
3124         /* Set receive mask to "Promisc" mode. */
3125         tp->receive_mask = saved_rcv_mask;
3126
3127         smctr_chg_rx_mask(dev);
3128
3129          return 0;
3130 err:
3131         smctr_reset_adapter(dev);
3132         tp->status = CLOSED;
3133         return LOBE_MEDIA_TEST_FAILED;
3134 }
3135
3136 static int smctr_lobe_media_test_cmd(struct net_device *dev)
3137 {
3138         struct net_local *tp = netdev_priv(dev);
3139         int err;
3140
3141         if(smctr_debug > 10)
3142                 printk(KERN_DEBUG "%s: smctr_lobe_media_test_cmd\n", dev->name);
3143
3144         /* Change to lobe media test state. */
3145         if(tp->monitor_state != MS_BEACON_TEST_STATE)
3146         {
3147                 smctr_lobe_media_test_state(dev);
3148                 if(smctr_wait_cmd(dev))
3149                 {
3150                         printk(KERN_ERR "Lobe Failed test state\n");
3151                         return (LOBE_MEDIA_TEST_FAILED);
3152                 }
3153         }
3154
3155         err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
3156                 TRC_LOBE_MEDIA_TEST);
3157
3158         return (err);
3159 }
3160
3161 static int smctr_lobe_media_test_state(struct net_device *dev)
3162 {
3163         int err;
3164
3165         err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE,
3166                 JS_LOBE_TEST_STATE);
3167
3168         return (err);
3169 }
3170
3171 static int smctr_make_8025_hdr(struct net_device *dev,
3172         MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc)
3173 {
3174         tmf->ac = MSB(ac_fc);                 /* msb is access control */
3175         tmf->fc = LSB(ac_fc);                 /* lsb is frame control */
3176
3177         tmf->sa[0] = dev->dev_addr[0];
3178         tmf->sa[1] = dev->dev_addr[1];
3179         tmf->sa[2] = dev->dev_addr[2];
3180         tmf->sa[3] = dev->dev_addr[3];
3181         tmf->sa[4] = dev->dev_addr[4];
3182         tmf->sa[5] = dev->dev_addr[5];
3183
3184         switch(tmf->vc)
3185         {
3186                 /* Send RQ_INIT to RPS */
3187                 case RQ_INIT:
3188                         tmf->da[0] = 0xc0;
3189                         tmf->da[1] = 0x00;
3190                         tmf->da[2] = 0x00;
3191                         tmf->da[3] = 0x00;
3192                         tmf->da[4] = 0x00;
3193                         tmf->da[5] = 0x02;
3194                         break;
3195
3196                 /* Send RPT_TX_FORWARD to CRS */
3197                 case RPT_TX_FORWARD:
3198                         tmf->da[0] = 0xc0;
3199                         tmf->da[1] = 0x00;
3200                         tmf->da[2] = 0x00;
3201                         tmf->da[3] = 0x00;
3202                         tmf->da[4] = 0x00;
3203                         tmf->da[5] = 0x10;
3204                         break;
3205
3206                 /* Everything else goes to sender */
3207                 default:
3208                         tmf->da[0] = rmf->sa[0];
3209                         tmf->da[1] = rmf->sa[1];
3210                         tmf->da[2] = rmf->sa[2];
3211                         tmf->da[3] = rmf->sa[3];
3212                         tmf->da[4] = rmf->sa[4];
3213                         tmf->da[5] = rmf->sa[5];
3214                         break;
3215         }
3216
3217         return (0);
3218 }
3219
3220 static int smctr_make_access_pri(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3221 {
3222         struct net_local *tp = netdev_priv(dev);
3223
3224         tsv->svi = AUTHORIZED_ACCESS_PRIORITY;
3225         tsv->svl = S_AUTHORIZED_ACCESS_PRIORITY;
3226
3227         tsv->svv[0] = MSB(tp->authorized_access_priority);
3228         tsv->svv[1] = LSB(tp->authorized_access_priority);
3229
3230         return (0);
3231 }
3232
3233 static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3234 {
3235         tsv->svi = ADDRESS_MODIFER;
3236         tsv->svl = S_ADDRESS_MODIFER;
3237
3238         tsv->svv[0] = 0;
3239         tsv->svv[1] = 0;
3240
3241         return (0);
3242 }
3243
3244 static int smctr_make_auth_funct_class(struct net_device *dev,
3245         MAC_SUB_VECTOR *tsv)
3246 {
3247         struct net_local *tp = netdev_priv(dev);
3248
3249         tsv->svi = AUTHORIZED_FUNCTION_CLASS;
3250         tsv->svl = S_AUTHORIZED_FUNCTION_CLASS;
3251
3252         tsv->svv[0] = MSB(tp->authorized_function_classes);
3253         tsv->svv[1] = LSB(tp->authorized_function_classes);
3254
3255         return (0);
3256 }
3257
3258 static int smctr_make_corr(struct net_device *dev,
3259         MAC_SUB_VECTOR *tsv, __u16 correlator)
3260 {
3261         tsv->svi = CORRELATOR;
3262         tsv->svl = S_CORRELATOR;
3263
3264         tsv->svv[0] = MSB(correlator);
3265         tsv->svv[1] = LSB(correlator);
3266
3267         return (0);
3268 }
3269
3270 static int smctr_make_funct_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3271 {
3272         struct net_local *tp = netdev_priv(dev);
3273
3274         smctr_get_functional_address(dev);
3275
3276         tsv->svi = FUNCTIONAL_ADDRESS;
3277         tsv->svl = S_FUNCTIONAL_ADDRESS;
3278
3279         tsv->svv[0] = MSB(tp->misc_command_data[0]);
3280         tsv->svv[1] = LSB(tp->misc_command_data[0]);
3281
3282         tsv->svv[2] = MSB(tp->misc_command_data[1]);
3283         tsv->svv[3] = LSB(tp->misc_command_data[1]);
3284
3285         return (0);
3286 }
3287
3288 static int smctr_make_group_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3289 {
3290         struct net_local *tp = netdev_priv(dev);
3291
3292         smctr_get_group_address(dev);
3293
3294         tsv->svi = GROUP_ADDRESS;
3295         tsv->svl = S_GROUP_ADDRESS;
3296
3297         tsv->svv[0] = MSB(tp->misc_command_data[0]);
3298         tsv->svv[1] = LSB(tp->misc_command_data[0]);
3299
3300         tsv->svv[2] = MSB(tp->misc_command_data[1]);
3301         tsv->svv[3] = LSB(tp->misc_command_data[1]);
3302
3303         /* Set Group Address Sub-vector to all zeros if only the
3304          * Group Address/Functional Address Indicator is set.
3305          */
3306         if(tsv->svv[0] == 0x80 && tsv->svv[1] == 0x00
3307                 && tsv->svv[2] == 0x00 && tsv->svv[3] == 0x00)
3308                 tsv->svv[0] = 0x00;
3309
3310         return (0);
3311 }
3312
3313 static int smctr_make_phy_drop_num(struct net_device *dev,
3314         MAC_SUB_VECTOR *tsv)
3315 {
3316         struct net_local *tp = netdev_priv(dev);
3317
3318         smctr_get_physical_drop_number(dev);
3319
3320         tsv->svi = PHYSICAL_DROP;
3321         tsv->svl = S_PHYSICAL_DROP;
3322
3323         tsv->svv[0] = MSB(tp->misc_command_data[0]);
3324         tsv->svv[1] = LSB(tp->misc_command_data[0]);
3325
3326         tsv->svv[2] = MSB(tp->misc_command_data[1]);
3327         tsv->svv[3] = LSB(tp->misc_command_data[1]);
3328
3329         return (0);
3330 }
3331
3332 static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3333 {
3334         int i;
3335
3336         tsv->svi = PRODUCT_INSTANCE_ID;
3337         tsv->svl = S_PRODUCT_INSTANCE_ID;
3338
3339         for(i = 0; i < 18; i++)
3340                 tsv->svv[i] = 0xF0;
3341
3342         return (0);
3343 }
3344
3345 static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3346 {
3347         struct net_local *tp = netdev_priv(dev);
3348
3349         smctr_get_station_id(dev);
3350
3351         tsv->svi = STATION_IDENTIFER;
3352         tsv->svl = S_STATION_IDENTIFER;
3353
3354         tsv->svv[0] = MSB(tp->misc_command_data[0]);
3355         tsv->svv[1] = LSB(tp->misc_command_data[0]);
3356
3357         tsv->svv[2] = MSB(tp->misc_command_data[1]);
3358         tsv->svv[3] = LSB(tp->misc_command_data[1]);
3359
3360         tsv->svv[4] = MSB(tp->misc_command_data[2]);
3361         tsv->svv[5] = LSB(tp->misc_command_data[2]);
3362
3363         return (0);
3364 }
3365
3366 static int smctr_make_ring_station_status(struct net_device *dev,
3367         MAC_SUB_VECTOR * tsv)
3368 {
3369         tsv->svi = RING_STATION_STATUS;
3370         tsv->svl = S_RING_STATION_STATUS;
3371
3372         tsv->svv[0] = 0;
3373         tsv->svv[1] = 0;
3374         tsv->svv[2] = 0;
3375         tsv->svv[3] = 0;
3376         tsv->svv[4] = 0;
3377         tsv->svv[5] = 0;
3378
3379         return (0);
3380 }
3381
3382 static int smctr_make_ring_station_version(struct net_device *dev,
3383         MAC_SUB_VECTOR *tsv)
3384 {
3385         struct net_local *tp = netdev_priv(dev);
3386
3387         tsv->svi = RING_STATION_VERSION_NUMBER;
3388         tsv->svl = S_RING_STATION_VERSION_NUMBER;
3389
3390         tsv->svv[0] = 0xe2;            /* EBCDIC - S */
3391         tsv->svv[1] = 0xd4;            /* EBCDIC - M */
3392         tsv->svv[2] = 0xc3;            /* EBCDIC - C */
3393         tsv->svv[3] = 0x40;            /* EBCDIC -   */
3394         tsv->svv[4] = 0xe5;            /* EBCDIC - V */
3395         tsv->svv[5] = 0xF0 + (tp->microcode_version >> 4);
3396         tsv->svv[6] = 0xF0 + (tp->microcode_version & 0x0f);
3397         tsv->svv[7] = 0x40;            /* EBCDIC -   */
3398         tsv->svv[8] = 0xe7;            /* EBCDIC - X */
3399
3400         if(tp->extra_info & CHIP_REV_MASK)
3401                 tsv->svv[9] = 0xc5;    /* EBCDIC - E */
3402         else
3403                 tsv->svv[9] = 0xc4;    /* EBCDIC - D */
3404
3405         return (0);
3406 }
3407
3408 static int smctr_make_tx_status_code(struct net_device *dev,
3409         MAC_SUB_VECTOR *tsv, __u16 tx_fstatus)
3410 {
3411         tsv->svi = TRANSMIT_STATUS_CODE;
3412         tsv->svl = S_TRANSMIT_STATUS_CODE;
3413
3414         tsv->svv[0] = ((tx_fstatus & 0x0100 >> 6) | IBM_PASS_SOURCE_ADDR);
3415
3416         /* Stripped frame status of Transmitted Frame */
3417         tsv->svv[1] = tx_fstatus & 0xff;
3418
3419         return (0);
3420 }
3421
3422 static int smctr_make_upstream_neighbor_addr(struct net_device *dev,
3423         MAC_SUB_VECTOR *tsv)
3424 {
3425         struct net_local *tp = netdev_priv(dev);
3426
3427         smctr_get_upstream_neighbor_addr(dev);
3428
3429         tsv->svi = UPSTREAM_NEIGHBOR_ADDRESS;
3430         tsv->svl = S_UPSTREAM_NEIGHBOR_ADDRESS;
3431
3432         tsv->svv[0] = MSB(tp->misc_command_data[0]);
3433         tsv->svv[1] = LSB(tp->misc_command_data[0]);
3434
3435         tsv->svv[2] = MSB(tp->misc_command_data[1]);
3436         tsv->svv[3] = LSB(tp->misc_command_data[1]);
3437
3438         tsv->svv[4] = MSB(tp->misc_command_data[2]);
3439         tsv->svv[5] = LSB(tp->misc_command_data[2]);
3440
3441         return (0);
3442 }
3443
3444 static int smctr_make_wrap_data(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3445 {
3446         tsv->svi = WRAP_DATA;
3447         tsv->svl = S_WRAP_DATA;
3448
3449         return (0);
3450 }
3451
3452 /*
3453  * Open/initialize the board. This is called sometime after
3454  * booting when the 'ifconfig' program is run.
3455  *
3456  * This routine should set everything up anew at each open, even
3457  * registers that "should" only need to be set once at boot, so that
3458  * there is non-reboot way to recover if something goes wrong.
3459  */
3460 static int smctr_open(struct net_device *dev)
3461 {
3462         int err;
3463
3464         if(smctr_debug > 10)
3465                 printk(KERN_DEBUG "%s: smctr_open\n", dev->name);
3466
3467         err = smctr_init_adapter(dev);
3468         if(err < 0)
3469                 return (err);
3470
3471         return (err);
3472 }
3473
3474 /* Interrupt driven open of Token card. */
3475 static int smctr_open_tr(struct net_device *dev)
3476 {
3477         struct net_local *tp = netdev_priv(dev);
3478         unsigned long flags;
3479         int err;
3480
3481         if(smctr_debug > 10)
3482                 printk(KERN_DEBUG "%s: smctr_open_tr\n", dev->name);
3483
3484         /* Now we can actually open the adapter. */
3485         if(tp->status == OPEN)
3486                 return (0);
3487         if(tp->status != INITIALIZED)
3488                 return (-1);
3489
3490         /* FIXME: it would work a lot better if we masked the irq sources
3491            on the card here, then we could skip the locking and poll nicely */
3492         spin_lock_irqsave(&tp->lock, flags);
3493         
3494         smctr_set_page(dev, (__u8 *)tp->ram_access);
3495
3496         if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)MAC_QUEUE)))
3497                 goto out;
3498
3499         if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)MAC_QUEUE)))
3500                 goto out;
3501
3502         if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)NON_MAC_QUEUE)))
3503                 goto out;
3504
3505         if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)NON_MAC_QUEUE)))
3506                 goto out;
3507
3508         tp->status = CLOSED;
3509
3510         /* Insert into the Ring or Enter Loopback Mode. */
3511         if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_1)
3512         {
3513                 tp->status = CLOSED;
3514
3515                 if(!(err = smctr_issue_trc_loopback_cmd(dev)))
3516                 {
3517                         if(!(err = smctr_wait_cmd(dev)))
3518                                 tp->status = OPEN;
3519                 }
3520
3521                 smctr_status_chg(dev);
3522         }
3523         else
3524         {
3525                 if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_2)
3526                 {
3527                         tp->status = CLOSED;
3528                         if(!(err = smctr_issue_tri_loopback_cmd(dev)))
3529                         {
3530                                 if(!(err = smctr_wait_cmd(dev)))
3531                                         tp->status = OPEN;
3532                         }
3533
3534                         smctr_status_chg(dev);
3535                 }
3536                 else
3537                 {
3538                         if((tp->mode_bits & LOOPING_MODE_MASK)
3539                                 == LOOPBACK_MODE_3)
3540                         {
3541                                 tp->status = CLOSED;
3542                                 if(!(err = smctr_lobe_media_test_cmd(dev)))
3543                                 {
3544                                         if(!(err = smctr_wait_cmd(dev)))
3545                                                 tp->status = OPEN;
3546                                 }
3547                                 smctr_status_chg(dev);
3548                         }
3549                         else
3550                         {
3551                                 if(!(err = smctr_lobe_media_test(dev)))
3552                                         err = smctr_issue_insert_cmd(dev);
3553                                 else
3554                                 {
3555                                         if(err == LOBE_MEDIA_TEST_FAILED)
3556                                                 printk(KERN_WARNING "%s: Lobe Media Test Failure - Check cable?\n", dev->name);
3557                                 }
3558                         }
3559                 }
3560         }
3561
3562 out:
3563         spin_unlock_irqrestore(&tp->lock, flags);
3564
3565         return (err);
3566 }
3567
3568 /* Check for a network adapter of this type, 
3569  * and return device structure if one exists.
3570  */
3571 struct net_device __init *smctr_probe(int unit)
3572 {
3573         struct net_device *dev = alloc_trdev(sizeof(struct net_local));
3574         static const unsigned ports[] = {
3575                 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0, 0x300,
3576                 0x320, 0x340, 0x360, 0x380, 0
3577         };
3578         const unsigned *port;
3579         int err = 0;
3580
3581         if (!dev)
3582                 return ERR_PTR(-ENOMEM);
3583
3584         if (unit >= 0) {
3585                 sprintf(dev->name, "tr%d", unit);
3586                 netdev_boot_setup_check(dev);
3587         }
3588
3589         if (dev->base_addr > 0x1ff)    /* Check a single specified location. */
3590                 err = smctr_probe1(dev, dev->base_addr);
3591         else if(dev->base_addr != 0)  /* Don't probe at all. */
3592                 err =-ENXIO;
3593         else {
3594                 for (port = ports; *port; port++) {
3595                         err = smctr_probe1(dev, *port);
3596                         if (!err)
3597                                 break;
3598                 }
3599         }
3600         if (err)
3601                 goto out;
3602         err = register_netdev(dev);
3603         if (err)
3604                 goto out1;
3605         return dev;
3606 out1:
3607 #ifdef CONFIG_MCA_LEGACY
3608         { struct net_local *tp = netdev_priv(dev);
3609           if (tp->slot_num)
3610                 mca_mark_as_unused(tp->slot_num);
3611         }
3612 #endif
3613         release_region(dev->base_addr, SMCTR_IO_EXTENT);
3614         free_irq(dev->irq, dev);
3615 out:
3616         free_netdev(dev);
3617         return ERR_PTR(err);
3618 }
3619
3620 static const struct net_device_ops smctr_netdev_ops = {
3621         .ndo_open          = smctr_open,
3622         .ndo_stop          = smctr_close,
3623         .ndo_start_xmit    = smctr_send_packet,
3624         .ndo_tx_timeout    = smctr_timeout,
3625         .ndo_get_stats     = smctr_get_stats,
3626         .ndo_set_multicast_list = smctr_set_multicast_list,
3627 };
3628
3629 static int __init smctr_probe1(struct net_device *dev, int ioaddr)
3630 {
3631         static unsigned version_printed;
3632         struct net_local *tp = netdev_priv(dev);
3633         int err;
3634         __u32 *ram;
3635
3636         if(smctr_debug && version_printed++ == 0)
3637                 printk(version);
3638
3639         spin_lock_init(&tp->lock);
3640         dev->base_addr = ioaddr;
3641
3642         /* Actually detect an adapter now. */
3643         err = smctr_chk_isa(dev);
3644         if(err < 0)
3645         {
3646                 if ((err = smctr_chk_mca(dev)) < 0) {
3647                         err = -ENODEV;
3648                         goto out;
3649                 }
3650         }
3651
3652         tp = netdev_priv(dev);
3653         dev->mem_start = tp->ram_base;
3654         dev->mem_end = dev->mem_start + 0x10000;
3655         ram = (__u32 *)phys_to_virt(dev->mem_start);
3656         tp->ram_access = *(__u32 *)&ram;
3657         tp->status = NOT_INITIALIZED;
3658
3659         err = smctr_load_firmware(dev);
3660         if(err != UCODE_PRESENT && err != SUCCESS)
3661         {
3662                 printk(KERN_ERR "%s: Firmware load failed (%d)\n", dev->name, err);
3663                 err = -EIO;
3664                 goto out;
3665         }
3666
3667         /* Allow user to specify ring speed on module insert. */
3668         if(ringspeed == 4)
3669                 tp->media_type = MEDIA_UTP_4;
3670         else
3671                 tp->media_type = MEDIA_UTP_16;
3672
3673         printk(KERN_INFO "%s: %s %s at Io %#4x, Irq %d, Rom %#4x, Ram %#4x.\n",
3674                 dev->name, smctr_name, smctr_model,
3675                 (unsigned int)dev->base_addr,
3676                 dev->irq, tp->rom_base, tp->ram_base);
3677
3678         dev->netdev_ops = &smctr_netdev_ops;
3679         dev->watchdog_timeo     = HZ;
3680         return (0);
3681
3682 out:
3683         return err;
3684 }
3685
3686 static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
3687         struct net_device *dev, __u16 rx_status)
3688 {
3689         struct net_local *tp = netdev_priv(dev);
3690         struct sk_buff *skb;
3691         __u16 rcode, correlator;
3692         int err = 0;
3693         __u8 xframe = 1;
3694
3695         rmf->vl = SWAP_BYTES(rmf->vl);
3696         if(rx_status & FCB_RX_STATUS_DA_MATCHED)
3697         {
3698                 switch(rmf->vc)
3699                 {
3700                         /* Received MAC Frames Processed by RS. */
3701                         case INIT:
3702                                 if((rcode = smctr_rcv_init(dev, rmf, &correlator)) == HARDWARE_FAILED)
3703                                 {
3704                                         return (rcode);
3705                                 }
3706
3707                                 if((err = smctr_send_rsp(dev, rmf, rcode,
3708                                         correlator)))
3709                                 {
3710                                         return (err);
3711                                 }
3712                                 break;
3713
3714                         case CHG_PARM:
3715                                 if((rcode = smctr_rcv_chg_param(dev, rmf,
3716                                         &correlator)) ==HARDWARE_FAILED)
3717                                 {
3718                                         return (rcode);
3719                                 }
3720
3721                                 if((err = smctr_send_rsp(dev, rmf, rcode,
3722                                         correlator)))
3723                                 {
3724                                         return (err);
3725                                 }
3726                                 break;
3727
3728                         case RQ_ADDR:
3729                                 if((rcode = smctr_rcv_rq_addr_state_attch(dev,
3730                                         rmf, &correlator)) != POSITIVE_ACK)
3731                                 {
3732                                         if(rcode == HARDWARE_FAILED)
3733                                                 return (rcode);
3734                                         else
3735                                                 return (smctr_send_rsp(dev, rmf,
3736                                                         rcode, correlator));
3737                                 }
3738
3739                                 if((err = smctr_send_rpt_addr(dev, rmf,
3740                                         correlator)))
3741                                 {
3742                                         return (err);
3743                                 }
3744                                 break;
3745
3746                         case RQ_ATTCH:
3747                                 if((rcode = smctr_rcv_rq_addr_state_attch(dev,
3748                                         rmf, &correlator)) != POSITIVE_ACK)
3749                                 {
3750                                         if(rcode == HARDWARE_FAILED)
3751                                                 return (rcode);
3752                                         else
3753                                                 return (smctr_send_rsp(dev, rmf,
3754                                                         rcode,
3755                                                         correlator));
3756                                 }
3757
3758                                 if((err = smctr_send_rpt_attch(dev, rmf,
3759                                         correlator)))
3760                                 {
3761                                         return (err);
3762                                 }
3763                                 break;
3764
3765                         case RQ_STATE:
3766                                 if((rcode = smctr_rcv_rq_addr_state_attch(dev,
3767                                         rmf, &correlator)) != POSITIVE_ACK)
3768                                 {
3769                                         if(rcode == HARDWARE_FAILED)
3770                                                 return (rcode);
3771                                         else
3772                                                 return (smctr_send_rsp(dev, rmf,
3773                                                         rcode,
3774                                                         correlator));
3775                                 }
3776
3777                                 if((err = smctr_send_rpt_state(dev, rmf,
3778                                         correlator)))
3779                                 {
3780                                         return (err);
3781                                 }
3782                                 break;
3783
3784                         case TX_FORWARD: {
3785                                 __u16 uninitialized_var(tx_fstatus);
3786
3787                                 if((rcode = smctr_rcv_tx_forward(dev, rmf))
3788                                         != POSITIVE_ACK)
3789                                 {
3790                                         if(rcode == HARDWARE_FAILED)
3791                                                 return (rcode);
3792                                         else
3793                                                 return (smctr_send_rsp(dev, rmf,
3794                                                         rcode,
3795                                                         correlator));
3796                                 }
3797
3798                                 if((err = smctr_send_tx_forward(dev, rmf,
3799                                         &tx_fstatus)) == HARDWARE_FAILED)
3800                                 {
3801                                         return (err);
3802                                 }
3803
3804                                 if(err == A_FRAME_WAS_FORWARDED)
3805                                 {
3806                                         if((err = smctr_send_rpt_tx_forward(dev,
3807                                                 rmf, tx_fstatus))
3808                                                 == HARDWARE_FAILED)
3809                                         {
3810                                                 return (err);
3811                                         }
3812                                 }
3813                                 break;
3814                         }
3815
3816                         /* Received MAC Frames Processed by CRS/REM/RPS. */
3817                         case RSP:
3818                         case RQ_INIT:
3819                         case RPT_NEW_MON:
3820                         case RPT_SUA_CHG:
3821                         case RPT_ACTIVE_ERR:
3822                         case RPT_NN_INCMP:
3823                         case RPT_ERROR:
3824                         case RPT_ATTCH:
3825                         case RPT_STATE:
3826                         case RPT_ADDR:
3827                                 break;
3828
3829                         /* Rcvd Att. MAC Frame (if RXATMAC set) or UNKNOWN */
3830                         default:
3831                                 xframe = 0;
3832                                 if(!(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES))
3833                                 {
3834                                         rcode = smctr_rcv_unknown(dev, rmf,
3835                                                 &correlator);
3836                                         if((err = smctr_send_rsp(dev, rmf,rcode,
3837                                                 correlator)))
3838                                         {
3839                                                 return (err);
3840                                         }
3841                                 }
3842
3843                                 break;
3844                 }
3845         }
3846         else
3847         {
3848                 /* 1. DA doesn't match (Promiscuous Mode).
3849                  * 2. Parse for Extended MAC Frame Type.
3850                  */
3851                 switch(rmf->vc)
3852                 {
3853                         case RSP:
3854                         case INIT:
3855                         case RQ_INIT:
3856                         case RQ_ADDR:
3857                         case RQ_ATTCH:
3858                         case RQ_STATE:
3859                         case CHG_PARM:
3860                         case RPT_ADDR:
3861                         case RPT_ERROR:
3862                         case RPT_ATTCH:
3863                         case RPT_STATE:
3864                         case RPT_NEW_MON:
3865                         case RPT_SUA_CHG:
3866                         case RPT_NN_INCMP:
3867                         case RPT_ACTIVE_ERR:
3868                                 break;
3869
3870                         default:
3871                                 xframe = 0;
3872                                 break;
3873                 }
3874         }
3875
3876         /* NOTE: UNKNOWN MAC frames will NOT be passed up unless
3877          * ACCEPT_ATT_MAC_FRAMES is set.
3878          */
3879         if(((tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
3880                 && (xframe == (__u8)0))
3881                 || ((tp->receive_mask & ACCEPT_EXT_MAC_FRAMES)
3882                 && (xframe == (__u8)1)))
3883         {
3884                 rmf->vl = SWAP_BYTES(rmf->vl);
3885
3886                 if (!(skb = dev_alloc_skb(size)))
3887                         return -ENOMEM;
3888                 skb->len = size;
3889
3890                 /* Slide data into a sleek skb. */
3891                 skb_put(skb, skb->len);
3892                 skb_copy_to_linear_data(skb, rmf, skb->len);
3893
3894                 /* Update Counters */
3895                 tp->MacStat.rx_packets++;
3896                 tp->MacStat.rx_bytes += skb->len;
3897
3898                 /* Kick the packet on up. */
3899                 skb->protocol = tr_type_trans(skb, dev);
3900                 netif_rx(skb);
3901                 err = 0;
3902         }
3903
3904         return (err);
3905 }
3906
3907 /* Adapter RAM test. Incremental word ODD boundary data test. */
3908 static int smctr_ram_memory_test(struct net_device *dev)
3909 {
3910         struct net_local *tp = netdev_priv(dev);
3911         __u16 page, pages_of_ram, start_pattern = 0, word_pattern = 0,
3912                 word_read = 0, err_word = 0, err_pattern = 0;
3913         unsigned int err_offset;
3914         __u32 j, pword;
3915         __u8 err = 0;
3916
3917         if(smctr_debug > 10)
3918                 printk(KERN_DEBUG "%s: smctr_ram_memory_test\n", dev->name);
3919
3920         start_pattern   = 0x0001;
3921         pages_of_ram    = tp->ram_size / tp->ram_usable;
3922         pword           = tp->ram_access;
3923
3924         /* Incremental word ODD boundary test. */
3925         for(page = 0; (page < pages_of_ram) && (~err);
3926                 page++, start_pattern += 0x8000)
3927         {
3928                 smctr_set_page(dev, (__u8 *)(tp->ram_access
3929                         + (page * tp->ram_usable * 1024) + 1));
3930                 word_pattern = start_pattern;
3931
3932                 for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1; j += 2)
3933                         *(__u16 *)(pword + j) = word_pattern++;
3934
3935                 word_pattern = start_pattern;
3936
3937                 for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1
3938                         && (~err); j += 2, word_pattern++)
3939                 {
3940                         word_read = *(__u16 *)(pword + j);
3941                         if(word_read != word_pattern)
3942                         {
3943                                 err             = (__u8)1;
3944                                 err_offset      = j;
3945                                 err_word        = word_read;
3946                                 err_pattern     = word_pattern;
3947                                 return (RAM_TEST_FAILED);
3948                         }
3949                 }
3950         }
3951
3952         /* Zero out memory. */
3953         for(page = 0; page < pages_of_ram && (~err); page++)
3954         {
3955                 smctr_set_page(dev, (__u8 *)(tp->ram_access
3956                         + (page * tp->ram_usable * 1024)));
3957                 word_pattern = 0;
3958
3959                 for(j = 0; j < (__u32)tp->ram_usable * 1024; j +=2)
3960                         *(__u16 *)(pword + j) = word_pattern;
3961
3962                 for(j =0; j < (__u32)tp->ram_usable * 1024
3963                         && (~err); j += 2)
3964                 {
3965                         word_read = *(__u16 *)(pword + j);
3966                         if(word_read != word_pattern)
3967                         {
3968                                 err             = (__u8)1;
3969                                 err_offset      = j;
3970                                 err_word        = word_read;
3971                                 err_pattern     = word_pattern;
3972                                 return (RAM_TEST_FAILED);
3973                         }
3974                 }
3975         }
3976
3977         smctr_set_page(dev, (__u8 *)tp->ram_access);
3978
3979         return (0);
3980 }
3981
3982 static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf,
3983         __u16 *correlator)
3984 {
3985         MAC_SUB_VECTOR *rsv;
3986         signed short vlen;
3987         __u16 rcode = POSITIVE_ACK;
3988         unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
3989
3990         /* This Frame can only come from a CRS */
3991         if((rmf->dc_sc & SC_MASK) != SC_CRS)
3992                 return(E_INAPPROPRIATE_SOURCE_CLASS);
3993
3994         /* Remove MVID Length from total length. */
3995         vlen = (signed short)rmf->vl - 4;
3996
3997         /* Point to First SVID */
3998         rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
3999
4000         /* Search for Appropriate SVID's. */
4001         while((vlen > 0) && (rcode == POSITIVE_ACK))
4002         {
4003                 switch(rsv->svi)
4004                 {
4005                         case CORRELATOR:
4006                                 svectors |= F_CORRELATOR;
4007                                 rcode = smctr_set_corr(dev, rsv, correlator);
4008                                 break;
4009
4010                         case LOCAL_RING_NUMBER:
4011                                 svectors |= F_LOCAL_RING_NUMBER;
4012                                 rcode = smctr_set_local_ring_num(dev, rsv);
4013                                 break;
4014
4015                         case ASSIGN_PHYSICAL_DROP:
4016                                 svectors |= F_ASSIGN_PHYSICAL_DROP;
4017                                 rcode = smctr_set_phy_drop(dev, rsv);
4018                                 break;
4019
4020                         case ERROR_TIMER_VALUE:
4021                                 svectors |= F_ERROR_TIMER_VALUE;
4022                                 rcode = smctr_set_error_timer_value(dev, rsv);
4023                                 break;
4024
4025                         case AUTHORIZED_FUNCTION_CLASS:
4026                                 svectors |= F_AUTHORIZED_FUNCTION_CLASS;
4027                                 rcode = smctr_set_auth_funct_class(dev, rsv);
4028                                 break;
4029
4030                         case AUTHORIZED_ACCESS_PRIORITY:
4031                                 svectors |= F_AUTHORIZED_ACCESS_PRIORITY;
4032                                 rcode = smctr_set_auth_access_pri(dev, rsv);
4033                                 break;
4034
4035                         default:
4036                                 rcode = E_SUB_VECTOR_UNKNOWN;
4037                                 break;
4038                 }
4039
4040                 /* Let Sender Know if SUM of SV length's is
4041                  * larger then length in MVID length field
4042                  */
4043                 if((vlen -= rsv->svl) < 0)
4044                         rcode = E_VECTOR_LENGTH_ERROR;
4045
4046                 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4047         }
4048
4049         if(rcode == POSITIVE_ACK)
4050         {
4051                 /* Let Sender Know if MVID length field
4052                  * is larger then SUM of SV length's
4053                  */
4054                 if(vlen != 0)
4055                         rcode = E_VECTOR_LENGTH_ERROR;
4056                 else
4057                 {
4058                         /* Let Sender Know if Expected SVID Missing */
4059                         if((svectors & R_CHG_PARM) ^ R_CHG_PARM)
4060                                 rcode = E_MISSING_SUB_VECTOR;
4061                 }
4062         }
4063
4064         return (rcode);
4065 }
4066
4067 static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf,
4068         __u16 *correlator)
4069 {
4070         MAC_SUB_VECTOR *rsv;
4071         signed short vlen;
4072         __u16 rcode = POSITIVE_ACK;
4073         unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4074
4075         /* This Frame can only come from a RPS */
4076         if((rmf->dc_sc & SC_MASK) != SC_RPS)
4077                 return (E_INAPPROPRIATE_SOURCE_CLASS);
4078
4079         /* Remove MVID Length from total length. */
4080         vlen = (signed short)rmf->vl - 4;
4081
4082         /* Point to First SVID */
4083         rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4084
4085         /* Search for Appropriate SVID's */
4086         while((vlen > 0) && (rcode == POSITIVE_ACK))
4087         {
4088                 switch(rsv->svi)
4089                 {
4090                         case CORRELATOR:
4091                                 svectors |= F_CORRELATOR;
4092                                 rcode = smctr_set_corr(dev, rsv, correlator);
4093                                 break;
4094
4095                         case LOCAL_RING_NUMBER:
4096                                 svectors |= F_LOCAL_RING_NUMBER;
4097                                 rcode = smctr_set_local_ring_num(dev, rsv);
4098                                 break;
4099
4100                         case ASSIGN_PHYSICAL_DROP:
4101                                 svectors |= F_ASSIGN_PHYSICAL_DROP;
4102                                 rcode = smctr_set_phy_drop(dev, rsv);
4103                                 break;
4104
4105                         case ERROR_TIMER_VALUE:
4106                                 svectors |= F_ERROR_TIMER_VALUE;
4107                                 rcode = smctr_set_error_timer_value(dev, rsv);
4108                                 break;
4109
4110                         default:
4111                                 rcode = E_SUB_VECTOR_UNKNOWN;
4112                                 break;
4113                 }
4114
4115                 /* Let Sender Know if SUM of SV length's is
4116                  * larger then length in MVID length field
4117                  */
4118                 if((vlen -= rsv->svl) < 0)
4119                         rcode = E_VECTOR_LENGTH_ERROR;
4120
4121                 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4122         }
4123
4124         if(rcode == POSITIVE_ACK)
4125         {
4126                 /* Let Sender Know if MVID length field
4127                  * is larger then SUM of SV length's
4128                  */
4129                 if(vlen != 0)
4130                         rcode = E_VECTOR_LENGTH_ERROR;
4131                 else
4132                 {
4133                         /* Let Sender Know if Expected SV Missing */
4134                         if((svectors & R_INIT) ^ R_INIT)
4135                                 rcode = E_MISSING_SUB_VECTOR;
4136                 }
4137         }
4138
4139         return (rcode);
4140 }
4141
4142 static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf)
4143 {
4144         MAC_SUB_VECTOR *rsv;
4145         signed short vlen;
4146         __u16 rcode = POSITIVE_ACK;
4147         unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4148
4149         /* This Frame can only come from a CRS */
4150         if((rmf->dc_sc & SC_MASK) != SC_CRS)
4151                 return (E_INAPPROPRIATE_SOURCE_CLASS);
4152
4153         /* Remove MVID Length from total length */
4154         vlen = (signed short)rmf->vl - 4;
4155
4156         /* Point to First SVID */
4157         rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4158
4159         /* Search for Appropriate SVID's */
4160         while((vlen > 0) && (rcode == POSITIVE_ACK))
4161         {
4162                 switch(rsv->svi)
4163                 {
4164                         case FRAME_FORWARD:
4165                                 svectors |= F_FRAME_FORWARD;
4166                                 rcode = smctr_set_frame_forward(dev, rsv, 
4167                                         rmf->dc_sc);
4168                                 break;
4169
4170                         default:
4171                                 rcode = E_SUB_VECTOR_UNKNOWN;
4172                                 break;
4173                 }
4174
4175                 /* Let Sender Know if SUM of SV length's is
4176                  * larger then length in MVID length field
4177                  */
4178                 if((vlen -= rsv->svl) < 0)
4179                         rcode = E_VECTOR_LENGTH_ERROR;
4180
4181                 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4182         }
4183
4184         if(rcode == POSITIVE_ACK)
4185         {
4186                 /* Let Sender Know if MVID length field
4187                  * is larger then SUM of SV length's
4188                  */
4189                 if(vlen != 0)
4190                         rcode = E_VECTOR_LENGTH_ERROR;
4191                 else
4192                 {
4193                         /* Let Sender Know if Expected SV Missing */
4194                         if((svectors & R_TX_FORWARD) ^ R_TX_FORWARD)
4195                                 rcode = E_MISSING_SUB_VECTOR;
4196                 }
4197         }
4198
4199         return (rcode);
4200 }
4201
4202 static int smctr_rcv_rq_addr_state_attch(struct net_device *dev,
4203         MAC_HEADER *rmf, __u16 *correlator)
4204 {
4205         MAC_SUB_VECTOR *rsv;
4206         signed short vlen;
4207         __u16 rcode = POSITIVE_ACK;
4208         unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4209
4210         /* Remove MVID Length from total length */
4211         vlen = (signed short)rmf->vl - 4;
4212
4213         /* Point to First SVID */
4214         rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4215
4216         /* Search for Appropriate SVID's */
4217         while((vlen > 0) && (rcode == POSITIVE_ACK))
4218         {
4219                 switch(rsv->svi)
4220                 {
4221                         case CORRELATOR:
4222                                 svectors |= F_CORRELATOR;
4223                                 rcode = smctr_set_corr(dev, rsv, correlator);
4224                                 break;
4225
4226                         default:
4227                                 rcode = E_SUB_VECTOR_UNKNOWN;
4228                                 break;
4229                 }
4230
4231                 /* Let Sender Know if SUM of SV length's is
4232                  * larger then length in MVID length field
4233                  */
4234                 if((vlen -= rsv->svl) < 0)
4235                         rcode = E_VECTOR_LENGTH_ERROR;
4236
4237                 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4238         }
4239
4240         if(rcode == POSITIVE_ACK)
4241         {
4242                 /* Let Sender Know if MVID length field
4243                  * is larger then SUM of SV length's
4244                  */
4245                 if(vlen != 0)
4246                         rcode = E_VECTOR_LENGTH_ERROR;
4247                 else
4248                 {
4249                         /* Let Sender Know if Expected SVID Missing */
4250                         if((svectors & R_RQ_ATTCH_STATE_ADDR) 
4251                                 ^ R_RQ_ATTCH_STATE_ADDR)
4252                                 rcode = E_MISSING_SUB_VECTOR;
4253                         }
4254         }
4255
4256         return (rcode);
4257 }
4258
4259 static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf,
4260         __u16 *correlator)
4261 {
4262         MAC_SUB_VECTOR *rsv;
4263         signed short vlen;
4264
4265         *correlator = 0;
4266
4267         /* Remove MVID Length from total length */
4268         vlen = (signed short)rmf->vl - 4;
4269
4270         /* Point to First SVID */
4271         rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4272
4273         /* Search for CORRELATOR for RSP to UNKNOWN */
4274         while((vlen > 0) && (*correlator == 0))
4275         {
4276                 switch(rsv->svi)
4277                 {
4278                         case CORRELATOR:
4279                                 smctr_set_corr(dev, rsv, correlator);
4280                                 break;
4281
4282                         default:
4283                                 break;
4284                 }
4285
4286                 vlen -= rsv->svl;
4287                 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4288         }
4289
4290         return (E_UNRECOGNIZED_VECTOR_ID);
4291 }
4292
4293 /*
4294  * Reset the 825 NIC and exit w:
4295  * 1. The NIC reset cleared (non-reset state), halted and un-initialized.
4296  * 2. TINT masked.
4297  * 3. CBUSY masked.
4298  * 4. TINT clear.
4299  * 5. CBUSY clear.
4300  */
4301 static int smctr_reset_adapter(struct net_device *dev)
4302 {
4303         struct net_local *tp = netdev_priv(dev);
4304         int ioaddr = dev->base_addr;
4305
4306         /* Reseting the NIC will put it in a halted and un-initialized state. */        smctr_set_trc_reset(ioaddr);
4307         mdelay(200); /* ~2 ms */
4308
4309         smctr_clear_trc_reset(ioaddr);
4310         mdelay(200); /* ~2 ms */
4311
4312         /* Remove any latched interrupts that occurred prior to reseting the
4313          * adapter or possibily caused by line glitches due to the reset.
4314          */
4315         outb(tp->trc_mask | CSR_CLRTINT | CSR_CLRCBUSY, ioaddr + CSR);
4316
4317         return (0);
4318 }
4319
4320 static int smctr_restart_tx_chain(struct net_device *dev, short queue)
4321 {
4322         struct net_local *tp = netdev_priv(dev);
4323         int err = 0;
4324
4325         if(smctr_debug > 10)
4326                 printk(KERN_DEBUG "%s: smctr_restart_tx_chain\n", dev->name);
4327
4328         if(tp->num_tx_fcbs_used[queue] != 0
4329                 && tp->tx_queue_status[queue] == NOT_TRANSMITING)
4330         {
4331                 tp->tx_queue_status[queue] = TRANSMITING;
4332                 err = smctr_issue_resume_tx_fcb_cmd(dev, queue);
4333         }
4334
4335         return (err);
4336 }
4337
4338 static int smctr_ring_status_chg(struct net_device *dev)
4339 {
4340         struct net_local *tp = netdev_priv(dev);
4341
4342         if(smctr_debug > 10)
4343                 printk(KERN_DEBUG "%s: smctr_ring_status_chg\n", dev->name);
4344
4345         /* Check for ring_status_flag: whenever MONITOR_STATE_BIT
4346          * Bit is set, check value of monitor_state, only then we
4347          * enable and start transmit/receive timeout (if and only
4348          * if it is MS_ACTIVE_MONITOR_STATE or MS_STANDBY_MONITOR_STATE)
4349          */
4350         if(tp->ring_status_flags == MONITOR_STATE_CHANGED)
4351         {
4352                 if((tp->monitor_state == MS_ACTIVE_MONITOR_STATE)
4353                         || (tp->monitor_state == MS_STANDBY_MONITOR_STATE))
4354                 {
4355                         tp->monitor_state_ready = 1;
4356                 }
4357                 else
4358                 {
4359                         /* if adapter is NOT in either active monitor
4360                          * or standby monitor state => Disable
4361                          * transmit/receive timeout.
4362                          */
4363                         tp->monitor_state_ready = 0;
4364
4365                         /* Ring speed problem, switching to auto mode. */
4366                         if(tp->monitor_state == MS_MONITOR_FSM_INACTIVE
4367                                 && !tp->cleanup)
4368                         {
4369                                 printk(KERN_INFO "%s: Incorrect ring speed switching.\n",
4370                                         dev->name);
4371                                 smctr_set_ring_speed(dev);
4372                         }
4373                 }
4374         }
4375
4376         if(!(tp->ring_status_flags & RING_STATUS_CHANGED))
4377                 return (0);
4378
4379         switch(tp->ring_status)
4380         {
4381                 case RING_RECOVERY:
4382                         printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
4383                         break;
4384
4385                 case SINGLE_STATION:
4386                         printk(KERN_INFO "%s: Single Statinon\n", dev->name);
4387                         break;
4388
4389                 case COUNTER_OVERFLOW:
4390                         printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
4391                         break;
4392
4393                 case REMOVE_RECEIVED:
4394                         printk(KERN_INFO "%s: Remove Received\n", dev->name);
4395                         break;
4396
4397                 case AUTO_REMOVAL_ERROR:
4398                         printk(KERN_INFO "%s: Auto Remove Error\n", dev->name);
4399                         break;
4400
4401                 case LOBE_WIRE_FAULT:
4402                         printk(KERN_INFO "%s: Lobe Wire Fault\n", dev->name);
4403                         break;
4404
4405                 case TRANSMIT_BEACON:
4406                         printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
4407                         break;
4408
4409                 case SOFT_ERROR:
4410                         printk(KERN_INFO "%s: Soft Error\n", dev->name);
4411                         break;
4412
4413                 case HARD_ERROR:
4414                         printk(KERN_INFO "%s: Hard Error\n", dev->name);
4415                         break;
4416
4417                 case SIGNAL_LOSS:
4418                         printk(KERN_INFO "%s: Signal Loss\n", dev->name);
4419                         break;
4420
4421                 default:
4422                         printk(KERN_INFO "%s: Unknown ring status change\n",
4423                                 dev->name);
4424                         break;
4425         }
4426
4427         return (0);
4428 }
4429
4430 static int smctr_rx_frame(struct net_device *dev)
4431 {
4432         struct net_local *tp = netdev_priv(dev);
4433         __u16 queue, status, rx_size, err = 0;
4434         __u8 *pbuff;
4435
4436         if(smctr_debug > 10)
4437                 printk(KERN_DEBUG "%s: smctr_rx_frame\n", dev->name);
4438
4439         queue = tp->receive_queue_number;
4440
4441         while((status = tp->rx_fcb_curr[queue]->frame_status) != SUCCESS)
4442         {
4443                 err = HARDWARE_FAILED;
4444
4445                 if(((status & 0x007f) == 0)
4446                         || ((tp->receive_mask & ACCEPT_ERR_PACKETS) != 0))
4447                 {
4448                         /* frame length less the CRC (4 bytes) + FS (1 byte) */
4449                         rx_size = tp->rx_fcb_curr[queue]->frame_length - 5;
4450
4451                         pbuff = smctr_get_rx_pointer(dev, queue);
4452
4453                         smctr_set_page(dev, pbuff);
4454                         smctr_disable_16bit(dev);
4455
4456                         /* pbuff points to addr within one page */
4457                         pbuff = (__u8 *)PAGE_POINTER(pbuff);
4458
4459                         if(queue == NON_MAC_QUEUE)
4460                         {
4461                                 struct sk_buff *skb;
4462
4463                                 skb = dev_alloc_skb(rx_size);
4464                                 if (skb) {
4465                                         skb_put(skb, rx_size);
4466
4467                                         skb_copy_to_linear_data(skb, pbuff, rx_size);
4468
4469                                         /* Update Counters */
4470                                         tp->MacStat.rx_packets++;
4471                                         tp->MacStat.rx_bytes += skb->len;
4472
4473                                         /* Kick the packet on up. */
4474                                         skb->protocol = tr_type_trans(skb, dev);
4475                                         netif_rx(skb);
4476                                 } else {
4477                                 }
4478                         }
4479                         else
4480                                 smctr_process_rx_packet((MAC_HEADER *)pbuff,
4481                                         rx_size, dev, status);
4482                 }
4483
4484                 smctr_enable_16bit(dev);
4485                 smctr_set_page(dev, (__u8 *)tp->ram_access);
4486                 smctr_update_rx_chain(dev, queue);
4487
4488                 if(err != SUCCESS)
4489                         break;
4490         }
4491
4492         return (err);
4493 }
4494
4495 static int smctr_send_dat(struct net_device *dev)
4496 {
4497         struct net_local *tp = netdev_priv(dev);
4498         unsigned int i, err;
4499         MAC_HEADER *tmf;
4500         FCBlock *fcb;
4501
4502         if(smctr_debug > 10)
4503                 printk(KERN_DEBUG "%s: smctr_send_dat\n", dev->name);
4504
4505         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE,
4506                 sizeof(MAC_HEADER))) == (FCBlock *)(-1L))
4507         {
4508                 return (OUT_OF_RESOURCES);
4509         }
4510
4511         /* Initialize DAT Data Fields. */
4512         tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4513         tmf->ac = MSB(AC_FC_DAT);
4514         tmf->fc = LSB(AC_FC_DAT);
4515
4516         for(i = 0; i < 6; i++)
4517         {
4518                 tmf->sa[i] = dev->dev_addr[i];
4519                 tmf->da[i] = dev->dev_addr[i];
4520
4521         }
4522
4523         tmf->vc        = DAT;
4524         tmf->dc_sc     = DC_RS | SC_RS;
4525         tmf->vl        = 4;
4526         tmf->vl        = SWAP_BYTES(tmf->vl);
4527
4528         /* Start Transmit. */
4529         if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
4530                 return (err);
4531
4532         /* Wait for Transmit to Complete */
4533         for(i = 0; i < 10000; i++)
4534         {
4535                 if(fcb->frame_status & FCB_COMMAND_DONE)
4536                         break;
4537                 mdelay(1);
4538         }
4539
4540         /* Check if GOOD frame Tx'ed. */
4541         if(!(fcb->frame_status &  FCB_COMMAND_DONE)
4542                 || fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS))
4543         {
4544                 return (INITIALIZE_FAILED);
4545         }
4546
4547         /* De-allocated Tx FCB and Frame Buffer
4548          * The FCB must be de-allocated manually if executing with
4549          * interrupts disabled, other wise the ISR (LM_Service_Events)
4550          * will de-allocate it when the interrupt occurs.
4551          */
4552         tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
4553         smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
4554
4555         return (0);
4556 }
4557
4558 static void smctr_timeout(struct net_device *dev)
4559 {
4560         /*
4561          * If we get here, some higher level has decided we are broken.
4562          * There should really be a "kick me" function call instead.
4563          *
4564          * Resetting the token ring adapter takes a long time so just
4565          * fake transmission time and go on trying. Our own timeout
4566          * routine is in sktr_timer_chk()
4567          */
4568         dev->trans_start = jiffies;
4569         netif_wake_queue(dev);
4570 }
4571
4572 /*
4573  * Gets skb from system, queues it and checks if it can be sent
4574  */
4575 static netdev_tx_t smctr_send_packet(struct sk_buff *skb,
4576                                            struct net_device *dev)
4577 {
4578         struct net_local *tp = netdev_priv(dev);
4579
4580         if(smctr_debug > 10)
4581                 printk(KERN_DEBUG "%s: smctr_send_packet\n", dev->name);
4582
4583         /*
4584          * Block a transmit overlap
4585          */
4586          
4587         netif_stop_queue(dev);
4588
4589         if(tp->QueueSkb == 0)
4590                 return NETDEV_TX_BUSY;     /* Return with tbusy set: queue full */
4591
4592         tp->QueueSkb--;
4593         skb_queue_tail(&tp->SendSkbQueue, skb);
4594         smctr_hardware_send_packet(dev, tp);
4595         if(tp->QueueSkb > 0)
4596                 netif_wake_queue(dev);
4597                 
4598         return NETDEV_TX_OK;
4599 }
4600
4601 static int smctr_send_lobe_media_test(struct net_device *dev)
4602 {
4603         struct net_local *tp = netdev_priv(dev);
4604         MAC_SUB_VECTOR *tsv;
4605         MAC_HEADER *tmf;
4606         FCBlock *fcb;
4607         __u32 i;
4608         int err;
4609
4610         if(smctr_debug > 15)
4611                 printk(KERN_DEBUG "%s: smctr_send_lobe_media_test\n", dev->name);
4612
4613         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(struct trh_hdr)
4614                 + S_WRAP_DATA + S_WRAP_DATA)) == (FCBlock *)(-1L))
4615         {
4616                 return (OUT_OF_RESOURCES);
4617         }
4618
4619         /* Initialize DAT Data Fields. */
4620         tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4621         tmf->ac = MSB(AC_FC_LOBE_MEDIA_TEST);
4622         tmf->fc = LSB(AC_FC_LOBE_MEDIA_TEST);
4623
4624         for(i = 0; i < 6; i++)
4625         {
4626                 tmf->da[i] = 0;
4627                 tmf->sa[i] = dev->dev_addr[i];
4628         }
4629
4630         tmf->vc        = LOBE_MEDIA_TEST;
4631         tmf->dc_sc     = DC_RS | SC_RS;
4632         tmf->vl        = 4;
4633
4634         tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4635         smctr_make_wrap_data(dev, tsv);
4636         tmf->vl += tsv->svl;
4637
4638         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4639         smctr_make_wrap_data(dev, tsv);
4640         tmf->vl += tsv->svl;
4641
4642         /* Start Transmit. */
4643         tmf->vl = SWAP_BYTES(tmf->vl);
4644         if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
4645                 return (err);
4646
4647         /* Wait for Transmit to Complete. (10 ms). */
4648         for(i=0; i < 10000; i++)
4649         {
4650                 if(fcb->frame_status & FCB_COMMAND_DONE)
4651                         break;
4652                 mdelay(1);
4653         }
4654
4655         /* Check if GOOD frame Tx'ed */
4656         if(!(fcb->frame_status & FCB_COMMAND_DONE)
4657                 || fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS))
4658         {
4659                 return (LOBE_MEDIA_TEST_FAILED);
4660         }
4661
4662         /* De-allocated Tx FCB and Frame Buffer
4663          * The FCB must be de-allocated manually if executing with
4664          * interrupts disabled, other wise the ISR (LM_Service_Events)
4665          * will de-allocate it when the interrupt occurs.
4666          */
4667         tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
4668         smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
4669
4670         return (0);
4671 }
4672
4673 static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf,
4674         __u16 correlator)
4675 {
4676         MAC_HEADER *tmf;
4677         MAC_SUB_VECTOR *tsv;
4678         FCBlock *fcb;
4679
4680         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4681                 + S_CORRELATOR + S_PHYSICAL_DROP + S_UPSTREAM_NEIGHBOR_ADDRESS
4682                 + S_ADDRESS_MODIFER + S_GROUP_ADDRESS + S_FUNCTIONAL_ADDRESS))
4683                 == (FCBlock *)(-1L))
4684         {
4685                 return (0);
4686         }
4687
4688         tmf             = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4689         tmf->vc         = RPT_ADDR;
4690         tmf->dc_sc      = (rmf->dc_sc & SC_MASK) << 4;
4691         tmf->vl         = 4;
4692
4693         smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ADDR);
4694
4695         tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4696         smctr_make_corr(dev, tsv, correlator);
4697
4698         tmf->vl += tsv->svl;
4699         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4700         smctr_make_phy_drop_num(dev, tsv);
4701
4702         tmf->vl += tsv->svl;
4703         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4704         smctr_make_upstream_neighbor_addr(dev, tsv);
4705
4706         tmf->vl += tsv->svl;
4707         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4708         smctr_make_addr_mod(dev, tsv);
4709
4710         tmf->vl += tsv->svl;
4711         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4712         smctr_make_group_addr(dev, tsv);
4713
4714         tmf->vl += tsv->svl;
4715         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4716         smctr_make_funct_addr(dev, tsv);
4717
4718         tmf->vl += tsv->svl;
4719
4720         /* Subtract out MVID and MVL which is
4721          * include in both vl and MAC_HEADER
4722          */
4723 /*      fcb->frame_length           = tmf->vl + sizeof(MAC_HEADER) - 4;
4724         fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4725 */
4726         tmf->vl = SWAP_BYTES(tmf->vl);
4727
4728         return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4729 }
4730
4731 static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf,
4732         __u16 correlator)
4733 {
4734         MAC_HEADER *tmf;
4735         MAC_SUB_VECTOR *tsv;
4736         FCBlock *fcb;
4737
4738         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4739                 + S_CORRELATOR + S_PRODUCT_INSTANCE_ID + S_FUNCTIONAL_ADDRESS
4740                 + S_AUTHORIZED_FUNCTION_CLASS + S_AUTHORIZED_ACCESS_PRIORITY))
4741                 == (FCBlock *)(-1L))
4742         {
4743                 return (0);
4744         }
4745
4746         tmf        = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4747         tmf->vc    = RPT_ATTCH;
4748         tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4749         tmf->vl    = 4;
4750
4751         smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ATTCH);
4752
4753         tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4754         smctr_make_corr(dev, tsv, correlator);
4755
4756         tmf->vl += tsv->svl;
4757         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4758         smctr_make_product_id(dev, tsv);
4759
4760         tmf->vl += tsv->svl;
4761         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4762         smctr_make_funct_addr(dev, tsv);
4763
4764         tmf->vl += tsv->svl;
4765         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4766         smctr_make_auth_funct_class(dev, tsv);
4767
4768         tmf->vl += tsv->svl;
4769         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4770         smctr_make_access_pri(dev, tsv);
4771
4772         tmf->vl += tsv->svl;
4773
4774         /* Subtract out MVID and MVL which is
4775          * include in both vl and MAC_HEADER
4776          */
4777 /*      fcb->frame_length           = tmf->vl + sizeof(MAC_HEADER) - 4;
4778         fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4779 */
4780         tmf->vl = SWAP_BYTES(tmf->vl);
4781
4782         return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4783 }
4784
4785 static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf,
4786         __u16 correlator)
4787 {
4788         MAC_HEADER *tmf;
4789         MAC_SUB_VECTOR *tsv;
4790         FCBlock *fcb;
4791
4792         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4793                 + S_CORRELATOR + S_RING_STATION_VERSION_NUMBER
4794                 + S_RING_STATION_STATUS + S_STATION_IDENTIFER))
4795                 == (FCBlock *)(-1L))
4796         {
4797                 return (0);
4798         }
4799
4800         tmf        = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4801         tmf->vc    = RPT_STATE;
4802         tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4803         tmf->vl    = 4;
4804
4805         smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_STATE);
4806
4807         tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4808         smctr_make_corr(dev, tsv, correlator);
4809
4810         tmf->vl += tsv->svl;
4811         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4812         smctr_make_ring_station_version(dev, tsv);
4813
4814         tmf->vl += tsv->svl;
4815         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4816         smctr_make_ring_station_status(dev, tsv);
4817
4818         tmf->vl += tsv->svl;
4819         tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4820         smctr_make_station_id(dev, tsv);
4821
4822         tmf->vl += tsv->svl;
4823
4824         /* Subtract out MVID and MVL which is
4825          * include in both vl and MAC_HEADER
4826          */
4827 /*      fcb->frame_length           = tmf->vl + sizeof(MAC_HEADER) - 4;
4828         fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4829 */
4830         tmf->vl = SWAP_BYTES(tmf->vl);
4831
4832         return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4833 }
4834
4835 static int smctr_send_rpt_tx_forward(struct net_device *dev,
4836         MAC_HEADER *rmf, __u16 tx_fstatus)
4837 {
4838         MAC_HEADER *tmf;
4839         MAC_SUB_VECTOR *tsv;
4840         FCBlock *fcb;
4841
4842         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4843                 + S_TRANSMIT_STATUS_CODE)) == (FCBlock *)(-1L))
4844         {
4845                 return (0);
4846         }
4847
4848         tmf        = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4849         tmf->vc    = RPT_TX_FORWARD;
4850         tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4851         tmf->vl    = 4;
4852
4853         smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_TX_FORWARD);
4854
4855         tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4856         smctr_make_tx_status_code(dev, tsv, tx_fstatus);
4857
4858         tmf->vl += tsv->svl;
4859
4860         /* Subtract out MVID and MVL which is
4861          * include in both vl and MAC_HEADER
4862          */
4863 /*      fcb->frame_length           = tmf->vl + sizeof(MAC_HEADER) - 4;
4864         fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4865 */
4866         tmf->vl = SWAP_BYTES(tmf->vl);
4867
4868         return(smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4869 }
4870
4871 static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf,
4872         __u16 rcode, __u16 correlator)
4873 {
4874         MAC_HEADER *tmf;
4875         MAC_SUB_VECTOR *tsv;
4876         FCBlock *fcb;
4877
4878         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4879                 + S_CORRELATOR + S_RESPONSE_CODE)) == (FCBlock *)(-1L))
4880         {
4881                 return (0);
4882         }
4883
4884         tmf        = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4885         tmf->vc    = RSP;
4886         tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4887         tmf->vl    = 4;
4888
4889         smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RSP);
4890
4891         tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4892         smctr_make_corr(dev, tsv, correlator);
4893
4894         return (0);
4895 }
4896
4897 static int smctr_send_rq_init(struct net_device *dev)
4898 {
4899         struct net_local *tp = netdev_priv(dev);
4900         MAC_HEADER *tmf;
4901         MAC_SUB_VECTOR *tsv;
4902         FCBlock *fcb;
4903         unsigned int i, count = 0;
4904         __u16 fstatus;
4905         int err;
4906
4907         do {
4908                 if(((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4909                         + S_PRODUCT_INSTANCE_ID + S_UPSTREAM_NEIGHBOR_ADDRESS
4910                         + S_RING_STATION_VERSION_NUMBER + S_ADDRESS_MODIFER))
4911                         == (FCBlock *)(-1L)))
4912                 {
4913                         return (0);
4914                 }
4915
4916                 tmf        = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4917                 tmf->vc    = RQ_INIT;
4918                 tmf->dc_sc = DC_RPS | SC_RS;
4919                 tmf->vl    = 4;
4920
4921                 smctr_make_8025_hdr(dev, NULL, tmf, AC_FC_RQ_INIT);
4922
4923                 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4924                 smctr_make_product_id(dev, tsv);
4925
4926                 tmf->vl += tsv->svl;
4927                 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4928                 smctr_make_upstream_neighbor_addr(dev, tsv);
4929
4930                 tmf->vl += tsv->svl;
4931                 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4932                 smctr_make_ring_station_version(dev, tsv);
4933
4934                 tmf->vl += tsv->svl;
4935                 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4936                 smctr_make_addr_mod(dev, tsv);
4937
4938                 tmf->vl += tsv->svl;
4939
4940                 /* Subtract out MVID and MVL which is
4941                  * include in both vl and MAC_HEADER
4942                  */
4943 /*              fcb->frame_length           = tmf->vl + sizeof(MAC_HEADER) - 4;
4944                 fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4945 */
4946                 tmf->vl = SWAP_BYTES(tmf->vl);
4947
4948                 if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
4949                         return (err);
4950
4951                 /* Wait for Transmit to Complete */
4952                 for(i = 0; i < 10000; i++) 
4953                 {
4954                         if(fcb->frame_status & FCB_COMMAND_DONE)
4955                                 break;
4956                         mdelay(1);
4957                 }
4958
4959                 /* Check if GOOD frame Tx'ed */
4960                 fstatus = fcb->frame_status;
4961
4962                 if(!(fstatus & FCB_COMMAND_DONE))
4963                         return (HARDWARE_FAILED);
4964
4965                 if(!(fstatus & FCB_TX_STATUS_E))
4966                         count++;
4967
4968                 /* De-allocated Tx FCB and Frame Buffer
4969                  * The FCB must be de-allocated manually if executing with
4970                  * interrupts disabled, other wise the ISR (LM_Service_Events)
4971                  * will de-allocate it when the interrupt occurs.
4972                  */
4973                 tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
4974                 smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
4975         } while(count < 4 && ((fstatus & FCB_TX_AC_BITS) ^ FCB_TX_AC_BITS));
4976
4977         return (smctr_join_complete_state(dev));
4978 }
4979
4980 static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf,
4981         __u16 *tx_fstatus)
4982 {
4983         struct net_local *tp = netdev_priv(dev);
4984         FCBlock *fcb;
4985         unsigned int i;
4986         int err;
4987
4988         /* Check if this is the END POINT of the Transmit Forward Chain. */
4989         if(rmf->vl <= 18)
4990                 return (0);
4991
4992         /* Allocate Transmit FCB only by requesting 0 bytes
4993          * of data buffer.
4994          */
4995         if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, 0)) == (FCBlock *)(-1L))
4996                 return (0);
4997
4998         /* Set pointer to Transmit Frame Buffer to the data
4999          * portion of the received TX Forward frame, making
5000          * sure to skip over the Vector Code (vc) and Vector
5001          * length (vl).
5002          */
5003         fcb->bdb_ptr->trc_data_block_ptr = TRC_POINTER((__u32)rmf 
5004                 + sizeof(MAC_HEADER) + 2);
5005         fcb->bdb_ptr->data_block_ptr     = (__u16 *)((__u32)rmf 
5006                 + sizeof(MAC_HEADER) + 2);
5007
5008         fcb->frame_length                = rmf->vl - 4 - 2;
5009         fcb->bdb_ptr->buffer_length      = rmf->vl - 4 - 2;
5010
5011         if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
5012                 return (err);
5013
5014         /* Wait for Transmit to Complete */
5015         for(i = 0; i < 10000; i++) 
5016         {
5017                 if(fcb->frame_status & FCB_COMMAND_DONE)
5018                         break;
5019                 mdelay(1);
5020         }
5021
5022         /* Check if GOOD frame Tx'ed */
5023         if(!(fcb->frame_status & FCB_COMMAND_DONE))
5024         {
5025                 if((err = smctr_issue_resume_tx_fcb_cmd(dev, MAC_QUEUE)))
5026                         return (err);
5027
5028                 for(i = 0; i < 10000; i++) 
5029                 {
5030                         if(fcb->frame_status & FCB_COMMAND_DONE)
5031                                 break;
5032                         mdelay(1);
5033                 }
5034
5035                 if(!(fcb->frame_status & FCB_COMMAND_DONE))
5036                         return (HARDWARE_FAILED);
5037         }
5038
5039         *tx_fstatus = fcb->frame_status;
5040
5041         return (A_FRAME_WAS_FORWARDED);
5042 }
5043
5044 static int smctr_set_auth_access_pri(struct net_device *dev,
5045         MAC_SUB_VECTOR *rsv)
5046 {
5047         struct net_local *tp = netdev_priv(dev);
5048
5049         if(rsv->svl != S_AUTHORIZED_ACCESS_PRIORITY)
5050                 return (E_SUB_VECTOR_LENGTH_ERROR);
5051
5052         tp->authorized_access_priority = (rsv->svv[0] << 8 | rsv->svv[1]);
5053
5054         return (POSITIVE_ACK);
5055 }
5056
5057 static int smctr_set_auth_funct_class(struct net_device *dev,
5058         MAC_SUB_VECTOR *rsv)
5059 {
5060         struct net_local *tp = netdev_priv(dev);
5061
5062         if(rsv->svl != S_AUTHORIZED_FUNCTION_CLASS)
5063                 return (E_SUB_VECTOR_LENGTH_ERROR);
5064
5065         tp->authorized_function_classes = (rsv->svv[0] << 8 | rsv->svv[1]);
5066
5067         return (POSITIVE_ACK);
5068 }
5069
5070 static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv,
5071         __u16 *correlator)
5072 {
5073         if(rsv->svl != S_CORRELATOR)
5074                 return (E_SUB_VECTOR_LENGTH_ERROR);
5075
5076         *correlator = (rsv->svv[0] << 8 | rsv->svv[1]);
5077
5078         return (POSITIVE_ACK);
5079 }
5080
5081 static int smctr_set_error_timer_value(struct net_device *dev,
5082         MAC_SUB_VECTOR *rsv)
5083 {
5084         __u16 err_tval;
5085         int err;
5086
5087         if(rsv->svl != S_ERROR_TIMER_VALUE)
5088                 return (E_SUB_VECTOR_LENGTH_ERROR);
5089
5090         err_tval = (rsv->svv[0] << 8 | rsv->svv[1])*10;
5091
5092         smctr_issue_write_word_cmd(dev, RW_TER_THRESHOLD, &err_tval);
5093
5094         if((err = smctr_wait_cmd(dev)))
5095                 return (err);
5096
5097         return (POSITIVE_ACK);
5098 }
5099
5100 static int smctr_set_frame_forward(struct net_device *dev,
5101         MAC_SUB_VECTOR *rsv, __u8 dc_sc)
5102 {
5103         if((rsv->svl < 2) || (rsv->svl > S_FRAME_FORWARD))
5104                 return (E_SUB_VECTOR_LENGTH_ERROR);
5105
5106         if((dc_sc & DC_MASK) != DC_CRS)
5107         {
5108                 if(rsv->svl >= 2 && rsv->svl < 20)
5109                         return (E_TRANSMIT_FORWARD_INVALID);
5110
5111                 if((rsv->svv[0] != 0) || (rsv->svv[1] != 0))
5112                         return (E_TRANSMIT_FORWARD_INVALID);
5113         }
5114
5115         return (POSITIVE_ACK);
5116 }
5117
5118 static int smctr_set_local_ring_num(struct net_device *dev,
5119         MAC_SUB_VECTOR *rsv)
5120 {
5121         struct net_local *tp = netdev_priv(dev);
5122
5123         if(rsv->svl != S_LOCAL_RING_NUMBER)
5124                 return (E_SUB_VECTOR_LENGTH_ERROR);
5125
5126         if(tp->ptr_local_ring_num)
5127                 *(__u16 *)(tp->ptr_local_ring_num) 
5128                         = (rsv->svv[0] << 8 | rsv->svv[1]);
5129
5130         return (POSITIVE_ACK);
5131 }
5132
5133 static unsigned short smctr_set_ctrl_attention(struct net_device *dev)
5134 {
5135         struct net_local *tp = netdev_priv(dev);
5136         int ioaddr = dev->base_addr;
5137
5138         if(tp->bic_type == BIC_585_CHIP)
5139                 outb((tp->trc_mask | HWR_CA), ioaddr + HWR);
5140         else
5141         {
5142                 outb((tp->trc_mask | CSR_CA), ioaddr + CSR);
5143                 outb(tp->trc_mask, ioaddr + CSR);
5144         }
5145
5146         return (0);
5147 }
5148
5149 static void smctr_set_multicast_list(struct net_device *dev)
5150 {
5151         if(smctr_debug > 10)
5152                 printk(KERN_DEBUG "%s: smctr_set_multicast_list\n", dev->name);
5153
5154         return;
5155 }
5156
5157 static int smctr_set_page(struct net_device *dev, __u8 *buf)
5158 {
5159         struct net_local *tp = netdev_priv(dev);
5160         __u8 amask;
5161         __u32 tptr;
5162
5163         tptr = (__u32)buf - (__u32)tp->ram_access;
5164         amask = (__u8)((tptr & PR_PAGE_MASK) >> 8);
5165         outb(amask, dev->base_addr + PR);
5166
5167         return (0);
5168 }
5169
5170 static int smctr_set_phy_drop(struct net_device *dev, MAC_SUB_VECTOR *rsv)
5171 {
5172         int err;
5173
5174         if(rsv->svl != S_PHYSICAL_DROP)
5175                 return (E_SUB_VECTOR_LENGTH_ERROR);
5176
5177         smctr_issue_write_byte_cmd(dev, RW_PHYSICAL_DROP_NUMBER, &rsv->svv[0]);
5178         if((err = smctr_wait_cmd(dev)))
5179                 return (err);
5180
5181         return (POSITIVE_ACK);
5182 }
5183
5184 /* Reset the ring speed to the opposite of what it was. This auto-pilot
5185  * mode requires a complete reset and re-init of the adapter.
5186  */
5187 static int smctr_set_ring_speed(struct net_device *dev)
5188 {
5189         struct net_local *tp = netdev_priv(dev);
5190         int err;
5191
5192         if(tp->media_type == MEDIA_UTP_16)
5193                 tp->media_type = MEDIA_UTP_4;
5194         else
5195                 tp->media_type = MEDIA_UTP_16;
5196
5197         smctr_enable_16bit(dev);
5198
5199         /* Re-Initialize adapter's internal registers */
5200         smctr_reset_adapter(dev);
5201
5202         if((err = smctr_init_card_real(dev)))
5203                 return (err);
5204
5205         smctr_enable_bic_int(dev);
5206
5207         if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK)))
5208                 return (err);
5209
5210         smctr_disable_16bit(dev);
5211
5212         return (0);
5213 }
5214
5215 static int smctr_set_rx_look_ahead(struct net_device *dev)
5216 {
5217         struct net_local *tp = netdev_priv(dev);
5218         __u16 sword, rword;
5219
5220         if(smctr_debug > 10)
5221                 printk(KERN_DEBUG "%s: smctr_set_rx_look_ahead_flag\n", dev->name);
5222
5223         tp->adapter_flags &= ~(FORCED_16BIT_MODE);
5224         tp->adapter_flags |= RX_VALID_LOOKAHEAD;
5225
5226         if(tp->adapter_bus == BUS_ISA16_TYPE)
5227         {
5228                 sword = *((__u16 *)(tp->ram_access));
5229                 *((__u16 *)(tp->ram_access)) = 0x1234;
5230
5231                 smctr_disable_16bit(dev);
5232                 rword = *((__u16 *)(tp->ram_access));
5233                 smctr_enable_16bit(dev);
5234
5235                 if(rword != 0x1234)
5236                         tp->adapter_flags |= FORCED_16BIT_MODE;
5237
5238                 *((__u16 *)(tp->ram_access)) = sword;
5239         }
5240
5241         return (0);
5242 }
5243
5244 static int smctr_set_trc_reset(int ioaddr)
5245 {
5246         __u8 r;
5247
5248         r = inb(ioaddr + MSR);
5249         outb(MSR_RST | r, ioaddr + MSR);
5250
5251         return (0);
5252 }
5253
5254 /*
5255  * This function can be called if the adapter is busy or not.
5256  */
5257 static int smctr_setup_single_cmd(struct net_device *dev,
5258         __u16 command, __u16 subcommand)
5259 {
5260         struct net_local *tp = netdev_priv(dev);
5261         unsigned int err;
5262
5263         if(smctr_debug > 10)
5264                 printk(KERN_DEBUG "%s: smctr_setup_single_cmd\n", dev->name);
5265
5266         if((err = smctr_wait_while_cbusy(dev)))
5267                 return (err);
5268
5269         if((err = (unsigned int)smctr_wait_cmd(dev)))
5270                 return (err);
5271
5272         tp->acb_head->cmd_done_status   = 0;
5273         tp->acb_head->cmd               = command;
5274         tp->acb_head->subcmd            = subcommand;
5275
5276         err = smctr_issue_resume_acb_cmd(dev);
5277
5278         return (err);
5279 }
5280
5281 /*
5282  * This function can not be called with the adapter busy.
5283  */
5284 static int smctr_setup_single_cmd_w_data(struct net_device *dev,
5285         __u16 command, __u16 subcommand)
5286 {
5287         struct net_local *tp = netdev_priv(dev);
5288
5289         tp->acb_head->cmd_done_status   = ACB_COMMAND_NOT_DONE;
5290         tp->acb_head->cmd               = command;
5291         tp->acb_head->subcmd            = subcommand;
5292         tp->acb_head->data_offset_lo
5293                 = (__u16)TRC_POINTER(tp->misc_command_data);
5294
5295         return(smctr_issue_resume_acb_cmd(dev));
5296 }
5297
5298 static char *smctr_malloc(struct net_device *dev, __u16 size)
5299 {
5300         struct net_local *tp = netdev_priv(dev);
5301         char *m;
5302
5303         m = (char *)(tp->ram_access + tp->sh_mem_used);
5304         tp->sh_mem_used += (__u32)size;
5305
5306         return (m);
5307 }
5308
5309 static int smctr_status_chg(struct net_device *dev)
5310 {
5311         struct net_local *tp = netdev_priv(dev);
5312
5313         if(smctr_debug > 10)
5314                 printk(KERN_DEBUG "%s: smctr_status_chg\n", dev->name);
5315
5316         switch(tp->status)
5317         {
5318                 case OPEN:
5319                         break;
5320
5321                 case CLOSED:
5322                         break;
5323
5324                 /* Interrupt driven open() completion. XXX */
5325                 case INITIALIZED:
5326                         tp->group_address_0 = 0;
5327                         tp->group_address[0] = 0;
5328                         tp->group_address[1] = 0;
5329                         tp->functional_address_0 = 0;
5330                         tp->functional_address[0] = 0;
5331                         tp->functional_address[1] = 0;
5332                         smctr_open_tr(dev);
5333                         break;
5334
5335                 default:
5336                         printk(KERN_INFO "%s: status change unknown %x\n",
5337                                 dev->name, tp->status);
5338                         break;
5339         }
5340
5341         return (0);
5342 }
5343
5344 static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb,
5345         __u16 queue)
5346 {
5347         struct net_local *tp = netdev_priv(dev);
5348         int err = 0;
5349
5350         if(smctr_debug > 10)
5351                 printk(KERN_DEBUG "%s: smctr_trc_send_packet\n", dev->name);
5352
5353         fcb->info = FCB_CHAIN_END | FCB_ENABLE_TFS;
5354         if(tp->num_tx_fcbs[queue] != 1)
5355                 fcb->back_ptr->info = FCB_INTERRUPT_ENABLE | FCB_ENABLE_TFS;
5356
5357         if(tp->tx_queue_status[queue] == NOT_TRANSMITING)
5358         {
5359                 tp->tx_queue_status[queue] = TRANSMITING;
5360                 err = smctr_issue_resume_tx_fcb_cmd(dev, queue);
5361         }
5362
5363         return (err);
5364 }
5365
5366 static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue)
5367 {
5368         struct net_local *tp = netdev_priv(dev);
5369         __u16 status, err = 0;
5370         int cstatus;
5371
5372         if(smctr_debug > 10)
5373                 printk(KERN_DEBUG "%s: smctr_tx_complete\n", dev->name);
5374
5375         while((status = tp->tx_fcb_end[queue]->frame_status) != SUCCESS)
5376         {
5377                 if(status & 0x7e00 )
5378                 {
5379                         err = HARDWARE_FAILED;
5380                         break;
5381                 }
5382
5383                 if((err = smctr_update_tx_chain(dev, tp->tx_fcb_end[queue],
5384                         queue)) != SUCCESS)
5385                         break;
5386
5387                 smctr_disable_16bit(dev);
5388
5389                 if(tp->mode_bits & UMAC)
5390                 {
5391                         if(!(status & (FCB_TX_STATUS_AR1 | FCB_TX_STATUS_AR2)))
5392                                 cstatus = NO_SUCH_DESTINATION;
5393                         else
5394                         {
5395                                 if(!(status & (FCB_TX_STATUS_CR1 | FCB_TX_STATUS_CR2)))
5396                                         cstatus = DEST_OUT_OF_RESOURCES;
5397                                 else
5398                                 {
5399                                         if(status & FCB_TX_STATUS_E)
5400                                                 cstatus = MAX_COLLISIONS;
5401                                         else
5402                                                 cstatus = SUCCESS;
5403                                 }
5404                         }
5405                 }
5406                 else
5407                         cstatus = SUCCESS;
5408
5409                 if(queue == BUG_QUEUE)
5410                         err = SUCCESS;
5411
5412                 smctr_enable_16bit(dev);
5413                 if(err != SUCCESS)
5414                         break;
5415         }
5416
5417         return (err);
5418 }
5419
5420 static unsigned short smctr_tx_move_frame(struct net_device *dev,
5421         struct sk_buff *skb, __u8 *pbuff, unsigned int bytes)
5422 {
5423         struct net_local *tp = netdev_priv(dev);
5424         unsigned int ram_usable;
5425         __u32 flen, len, offset = 0;
5426         __u8 *frag, *page;
5427
5428         if(smctr_debug > 10)
5429                 printk(KERN_DEBUG "%s: smctr_tx_move_frame\n", dev->name);
5430
5431         ram_usable = ((unsigned int)tp->ram_usable) << 10;
5432         frag       = skb->data;
5433         flen       = skb->len;
5434
5435         while(flen > 0 && bytes > 0)
5436         {
5437                 smctr_set_page(dev, pbuff);
5438
5439                 offset = SMC_PAGE_OFFSET(pbuff);
5440
5441                 if(offset + flen > ram_usable)
5442                         len = ram_usable - offset;
5443                 else
5444                         len = flen;
5445
5446                 if(len > bytes)
5447                         len = bytes;
5448
5449                 page = (char *) (offset + tp->ram_access);
5450                 memcpy(page, frag, len);
5451
5452                 flen -=len;
5453                 bytes -= len;
5454                 frag += len;
5455                 pbuff += len;
5456         }
5457
5458         return (0);
5459 }
5460
5461 /* Update the error statistic counters for this adapter. */
5462 static int smctr_update_err_stats(struct net_device *dev)
5463 {
5464         struct net_local *tp = netdev_priv(dev);
5465         struct tr_statistics *tstat = &tp->MacStat;
5466
5467         if(tstat->internal_errors)
5468                 tstat->internal_errors
5469                         += *(tp->misc_command_data + 0) & 0x00ff;
5470
5471         if(tstat->line_errors)
5472                 tstat->line_errors += *(tp->misc_command_data + 0) >> 8;
5473
5474         if(tstat->A_C_errors)
5475                 tstat->A_C_errors += *(tp->misc_command_data + 1) & 0x00ff;
5476
5477         if(tstat->burst_errors)
5478                 tstat->burst_errors += *(tp->misc_command_data + 1) >> 8;
5479
5480         if(tstat->abort_delimiters)
5481                 tstat->abort_delimiters += *(tp->misc_command_data + 2) >> 8;
5482
5483         if(tstat->recv_congest_count)
5484                 tstat->recv_congest_count
5485                         += *(tp->misc_command_data + 3) & 0x00ff;
5486
5487         if(tstat->lost_frames)
5488                 tstat->lost_frames
5489                         += *(tp->misc_command_data + 3) >> 8;
5490
5491         if(tstat->frequency_errors)
5492                 tstat->frequency_errors += *(tp->misc_command_data + 4) & 0x00ff;
5493
5494         if(tstat->frame_copied_errors)
5495                  tstat->frame_copied_errors
5496                         += *(tp->misc_command_data + 4) >> 8;
5497
5498         if(tstat->token_errors)
5499                 tstat->token_errors += *(tp->misc_command_data + 5) >> 8;
5500
5501         return (0);
5502 }
5503
5504 static int smctr_update_rx_chain(struct net_device *dev, __u16 queue)
5505 {
5506         struct net_local *tp = netdev_priv(dev);
5507         FCBlock *fcb;
5508         BDBlock *bdb;
5509         __u16 size, len;
5510
5511         fcb = tp->rx_fcb_curr[queue];
5512         len = fcb->frame_length;
5513
5514         fcb->frame_status = 0;
5515         fcb->info = FCB_CHAIN_END;
5516         fcb->back_ptr->info = FCB_WARNING;
5517
5518         tp->rx_fcb_curr[queue] = tp->rx_fcb_curr[queue]->next_ptr;
5519
5520         /* update RX BDBs */
5521         size = (len >> RX_BDB_SIZE_SHIFT);
5522         if(len & RX_DATA_BUFFER_SIZE_MASK)
5523                 size += sizeof(BDBlock);
5524         size &= (~RX_BDB_SIZE_MASK);
5525
5526         /* check if wrap around */
5527         bdb = (BDBlock *)((__u32)(tp->rx_bdb_curr[queue]) + (__u32)(size));
5528         if((__u32)bdb >= (__u32)tp->rx_bdb_end[queue])
5529         {
5530                 bdb = (BDBlock *)((__u32)(tp->rx_bdb_head[queue])
5531                         + (__u32)(bdb) - (__u32)(tp->rx_bdb_end[queue]));
5532         }
5533
5534         bdb->back_ptr->info = BDB_CHAIN_END;
5535         tp->rx_bdb_curr[queue]->back_ptr->info = BDB_NOT_CHAIN_END;
5536         tp->rx_bdb_curr[queue] = bdb;
5537
5538         return (0);
5539 }
5540
5541 static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb,
5542         __u16 queue)
5543 {
5544         struct net_local *tp = netdev_priv(dev);
5545
5546         if(smctr_debug > 20)
5547                 printk(KERN_DEBUG "smctr_update_tx_chain\n");
5548
5549         if(tp->num_tx_fcbs_used[queue] <= 0)
5550                 return (HARDWARE_FAILED);
5551         else
5552         {
5553                 if(tp->tx_buff_used[queue] < fcb->memory_alloc)
5554                 {
5555                         tp->tx_buff_used[queue] = 0;
5556                         return (HARDWARE_FAILED);
5557                 }
5558
5559                 tp->tx_buff_used[queue] -= fcb->memory_alloc;
5560
5561                 /* if all transmit buffer are cleared
5562                  * need to set the tx_buff_curr[] to tx_buff_head[]
5563                  * otherwise, tx buffer will be segregate and cannot
5564                  * accommodate and buffer greater than (curr - head) and
5565                  * (end - curr) since we do not allow wrap around allocation.
5566                  */
5567                 if(tp->tx_buff_used[queue] == 0)
5568                         tp->tx_buff_curr[queue] = tp->tx_buff_head[queue];
5569
5570                 tp->num_tx_fcbs_used[queue]--;
5571                 fcb->frame_status = 0;
5572                 tp->tx_fcb_end[queue] = fcb->next_ptr;
5573                 netif_wake_queue(dev);
5574                 return (0);
5575         }
5576 }
5577
5578 static int smctr_wait_cmd(struct net_device *dev)
5579 {
5580         struct net_local *tp = netdev_priv(dev);
5581         unsigned int loop_count = 0x20000;
5582
5583         if(smctr_debug > 10)
5584                 printk(KERN_DEBUG "%s: smctr_wait_cmd\n", dev->name);
5585
5586         while(loop_count)
5587         {
5588                 if(tp->acb_head->cmd_done_status & ACB_COMMAND_DONE)
5589                         break;
5590                 udelay(1);
5591                 loop_count--;
5592         }
5593
5594         if(loop_count == 0)
5595                 return(HARDWARE_FAILED);
5596
5597         if(tp->acb_head->cmd_done_status & 0xff)
5598                 return(HARDWARE_FAILED);
5599
5600         return (0);
5601 }
5602
5603 static int smctr_wait_while_cbusy(struct net_device *dev)
5604 {
5605         struct net_local *tp = netdev_priv(dev);
5606         unsigned int timeout = 0x20000;
5607         int ioaddr = dev->base_addr;
5608         __u8 r;
5609
5610         if(tp->bic_type == BIC_585_CHIP)
5611         {
5612                 while(timeout)
5613                 {
5614                         r = inb(ioaddr + HWR);
5615                         if((r & HWR_CBUSY) == 0)
5616                                 break;
5617                         timeout--;
5618                 }
5619         }
5620         else
5621         {
5622                 while(timeout)
5623                 {
5624                         r = inb(ioaddr + CSR);
5625                         if((r & CSR_CBUSY) == 0)
5626                                 break;
5627                         timeout--;
5628                 }
5629         }
5630
5631         if(timeout)
5632                 return (0);
5633         else
5634                 return (HARDWARE_FAILED);
5635 }
5636
5637 #ifdef MODULE
5638
5639 static struct net_device* dev_smctr[SMCTR_MAX_ADAPTERS];
5640 static int io[SMCTR_MAX_ADAPTERS];
5641 static int irq[SMCTR_MAX_ADAPTERS];
5642
5643 MODULE_LICENSE("GPL");
5644 MODULE_FIRMWARE("tr_smctr.bin");
5645
5646 module_param_array(io, int, NULL, 0);
5647 module_param_array(irq, int, NULL, 0);
5648 module_param(ringspeed, int, 0);
5649
5650 static struct net_device * __init setup_card(int n)
5651 {
5652         struct net_device *dev = alloc_trdev(sizeof(struct net_local));
5653         int err;
5654         
5655         if (!dev)
5656                 return ERR_PTR(-ENOMEM);
5657
5658         dev->irq = irq[n];
5659         err = smctr_probe1(dev, io[n]);
5660         if (err) 
5661                 goto out;
5662                 
5663         err = register_netdev(dev);
5664         if (err)
5665                 goto out1;
5666         return dev;
5667  out1:
5668 #ifdef CONFIG_MCA_LEGACY
5669         { struct net_local *tp = netdev_priv(dev);
5670           if (tp->slot_num)
5671                 mca_mark_as_unused(tp->slot_num);
5672         }
5673 #endif
5674         release_region(dev->base_addr, SMCTR_IO_EXTENT);
5675         free_irq(dev->irq, dev);
5676 out:
5677         free_netdev(dev);
5678         return ERR_PTR(err);
5679 }
5680
5681 int __init init_module(void)
5682 {
5683         int i, found = 0;
5684         struct net_device *dev;
5685
5686         for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) {
5687                 dev = io[0]? setup_card(i) : smctr_probe(-1);
5688                 if (!IS_ERR(dev)) {
5689                         ++found;
5690                         dev_smctr[i] = dev;
5691                 }
5692         }
5693
5694         return found ? 0 : -ENODEV;
5695 }
5696
5697 void __exit cleanup_module(void)
5698 {
5699         int i;
5700
5701         for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) {
5702                 struct net_device *dev = dev_smctr[i];
5703
5704                 if (dev) {
5705
5706                         unregister_netdev(dev);
5707 #ifdef CONFIG_MCA_LEGACY
5708                         { struct net_local *tp = netdev_priv(dev);
5709                         if (tp->slot_num)
5710                                 mca_mark_as_unused(tp->slot_num);
5711                         }
5712 #endif
5713                         release_region(dev->base_addr, SMCTR_IO_EXTENT);
5714                         if (dev->irq)
5715                                 free_irq(dev->irq, dev);
5716
5717                         free_netdev(dev);
5718                 }
5719         }
5720 }
5721 #endif /* MODULE */