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 char version[] __initdata = KERN_INFO "smctr.c: v1.4 7/12/00 by jschlst@samba.org\n";
65 static const char cardname[] = "smctr";
66
67
68 #define SMCTR_IO_EXTENT 20
69
70 #ifdef CONFIG_MCA_LEGACY
71 static unsigned int smctr_posid = 0x6ec6;
72 #endif
73
74 static int ringspeed;
75
76 /* SMC Name of the Adapter. */
77 static char smctr_name[] = "SMC TokenCard";
78 static char *smctr_model = "Unknown";
79
80 /* Use 0 for production, 1 for verification, 2 for debug, and
81 * 3 for very verbose debug.
82 */
83 #ifndef SMCTR_DEBUG
84 #define SMCTR_DEBUG 1
85 #endif
86 static unsigned int smctr_debug = SMCTR_DEBUG;
87
88 /* smctr.c prototypes and functions are arranged alphabeticly
89 * for clearity, maintainability and pure old fashion fun.
90 */
91 /* A */
92 static int smctr_alloc_shared_memory(struct net_device *dev);
93
94 /* B */
95 static int smctr_bypass_state(struct net_device *dev);
96
97 /* C */
98 static int smctr_checksum_firmware(struct net_device *dev);
99 static int __init smctr_chk_isa(struct net_device *dev);
100 static int smctr_chg_rx_mask(struct net_device *dev);
101 static int smctr_clear_int(struct net_device *dev);
102 static int smctr_clear_trc_reset(int ioaddr);
103 static int smctr_close(struct net_device *dev);
104
105 /* D */
106 static int smctr_decode_firmware(struct net_device *dev,
107 const struct firmware *fw);
108 static int smctr_disable_16bit(struct net_device *dev);
109 static int smctr_disable_adapter_ctrl_store(struct net_device *dev);
110 static int smctr_disable_bic_int(struct net_device *dev);
111
112 /* E */
113 static int smctr_enable_16bit(struct net_device *dev);
114 static int smctr_enable_adapter_ctrl_store(struct net_device *dev);
115 static int smctr_enable_adapter_ram(struct net_device *dev);
116 static int smctr_enable_bic_int(struct net_device *dev);
117
118 /* G */
119 static int __init smctr_get_boardid(struct net_device *dev, int mca);
120 static int smctr_get_group_address(struct net_device *dev);
121 static int smctr_get_functional_address(struct net_device *dev);
122 static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev);
123 static int smctr_get_physical_drop_number(struct net_device *dev);
124 static __u8 *smctr_get_rx_pointer(struct net_device *dev, short queue);
125 static int smctr_get_station_id(struct net_device *dev);
126 static struct net_device_stats *smctr_get_stats(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 int smctr_send_packet(struct sk_buff *skb, struct net_device *dev);
238 static int smctr_send_lobe_media_test(struct net_device *dev);
239 static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf,
240 __u16 correlator);
241 static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf,
242 __u16 correlator);
243 static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf,
244 __u16 correlator);
245 static int smctr_send_rpt_tx_forward(struct net_device *dev,
246 MAC_HEADER *rmf, __u16 tx_fstatus);
247 static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf,
248 __u16 rcode, __u16 correlator);
249 static int smctr_send_rq_init(struct net_device *dev);
250 static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf,
251 __u16 *tx_fstatus);
252 static int smctr_set_auth_access_pri(struct net_device *dev,
253 MAC_SUB_VECTOR *rsv);
254 static int smctr_set_auth_funct_class(struct net_device *dev,
255 MAC_SUB_VECTOR *rsv);
256 static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv,
257 __u16 *correlator);
258 static int smctr_set_error_timer_value(struct net_device *dev,
259 MAC_SUB_VECTOR *rsv);
260 static int smctr_set_frame_forward(struct net_device *dev,
261 MAC_SUB_VECTOR *rsv, __u8 dc_sc);
262 static int smctr_set_local_ring_num(struct net_device *dev,
263 MAC_SUB_VECTOR *rsv);
264 static unsigned short smctr_set_ctrl_attention(struct net_device *dev);
265 static void smctr_set_multicast_list(struct net_device *dev);
266 static int smctr_set_page(struct net_device *dev, __u8 *buf);
267 static int smctr_set_phy_drop(struct net_device *dev,
268 MAC_SUB_VECTOR *rsv);
269 static int smctr_set_ring_speed(struct net_device *dev);
270 static int smctr_set_rx_look_ahead(struct net_device *dev);
271 static int smctr_set_trc_reset(int ioaddr);
272 static int smctr_setup_single_cmd(struct net_device *dev,
273 __u16 command, __u16 subcommand);
274 static int smctr_setup_single_cmd_w_data(struct net_device *dev,
275 __u16 command, __u16 subcommand);
276 static char *smctr_malloc(struct net_device *dev, __u16 size);
277 static int smctr_status_chg(struct net_device *dev);
278
279 /* T */
280 static void smctr_timeout(struct net_device *dev);
281 static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb,
282 __u16 queue);
283 static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue);
284 static unsigned short smctr_tx_move_frame(struct net_device *dev,
285 struct sk_buff *skb, __u8 *pbuff, unsigned int bytes);
286
287 /* U */
288 static int smctr_update_err_stats(struct net_device *dev);
289 static int smctr_update_rx_chain(struct net_device *dev, __u16 queue);
290 static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb,
291 __u16 queue);
292
293 /* W */
294 static int smctr_wait_cmd(struct net_device *dev);
295 static int smctr_wait_while_cbusy(struct net_device *dev);
296
297 #define TO_256_BYTE_BOUNDRY(X) (((X + 0xff) & 0xff00) - X)
298 #define TO_PARAGRAPH_BOUNDRY(X) (((X + 0x0f) & 0xfff0) - X)
299 #define PARAGRAPH_BOUNDRY(X) smctr_malloc(dev, TO_PARAGRAPH_BOUNDRY(X))
300
301 /* Allocate Adapter Shared Memory.
302 * IMPORTANT NOTE: Any changes to this function MUST be mirrored in the
303 * function "get_num_rx_bdbs" below!!!
304 *
305 * Order of memory allocation:
306 *
307 * 0. Initial System Configuration Block Pointer
308 * 1. System Configuration Block
309 * 2. System Control Block
310 * 3. Action Command Block
311 * 4. Interrupt Status Block
312 *
313 * 5. MAC TX FCB'S
314 * 6. NON-MAC TX FCB'S
315 * 7. MAC TX BDB'S
316 * 8. NON-MAC TX BDB'S
317 * 9. MAC RX FCB'S
318 * 10. NON-MAC RX FCB'S
319 * 11. MAC RX BDB'S
320 * 12. NON-MAC RX BDB'S
321 * 13. MAC TX Data Buffer( 1, 256 byte buffer)
322 * 14. MAC RX Data Buffer( 1, 256 byte buffer)
323 *
324 * 15. NON-MAC TX Data Buffer
325 * 16. NON-MAC RX Data Buffer
326 */
smctr_alloc_shared_memory(struct net_device * dev)327 static int smctr_alloc_shared_memory(struct net_device *dev)
328 {
329 struct net_local *tp = netdev_priv(dev);
330
331 if(smctr_debug > 10)
332 printk(KERN_DEBUG "%s: smctr_alloc_shared_memory\n", dev->name);
333
334 /* Allocate initial System Control Block pointer.
335 * This pointer is located in the last page, last offset - 4.
336 */
337 tp->iscpb_ptr = (ISCPBlock *)(tp->ram_access + ((__u32)64 * 0x400)
338 - (long)ISCP_BLOCK_SIZE);
339
340 /* Allocate System Control Blocks. */
341 tp->scgb_ptr = (SCGBlock *)smctr_malloc(dev, sizeof(SCGBlock));
342 PARAGRAPH_BOUNDRY(tp->sh_mem_used);
343
344 tp->sclb_ptr = (SCLBlock *)smctr_malloc(dev, sizeof(SCLBlock));
345 PARAGRAPH_BOUNDRY(tp->sh_mem_used);
346
347 tp->acb_head = (ACBlock *)smctr_malloc(dev,
348 sizeof(ACBlock)*tp->num_acbs);
349 PARAGRAPH_BOUNDRY(tp->sh_mem_used);
350
351 tp->isb_ptr = (ISBlock *)smctr_malloc(dev, sizeof(ISBlock));
352 PARAGRAPH_BOUNDRY(tp->sh_mem_used);
353
354 tp->misc_command_data = (__u16 *)smctr_malloc(dev, MISC_DATA_SIZE);
355 PARAGRAPH_BOUNDRY(tp->sh_mem_used);
356
357 /* Allocate transmit FCBs. */
358 tp->tx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
359 sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE]);
360
361 tp->tx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
362 sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE]);
363
364 tp->tx_fcb_head[BUG_QUEUE] = (FCBlock *)smctr_malloc(dev,
365 sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE]);
366
367 /* Allocate transmit BDBs. */
368 tp->tx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
369 sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE]);
370
371 tp->tx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
372 sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE]);
373
374 tp->tx_bdb_head[BUG_QUEUE] = (BDBlock *)smctr_malloc(dev,
375 sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE]);
376
377 /* Allocate receive FCBs. */
378 tp->rx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
379 sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE]);
380
381 tp->rx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev,
382 sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE]);
383
384 /* Allocate receive BDBs. */
385 tp->rx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
386 sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE]);
387
388 tp->rx_bdb_end[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
389
390 tp->rx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev,
391 sizeof(BDBlock) * tp->num_rx_bdbs[NON_MAC_QUEUE]);
392
393 tp->rx_bdb_end[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0);
394
395 /* Allocate MAC transmit buffers.
396 * MAC Tx Buffers doen't have to be on an ODD Boundry.
397 */
398 tp->tx_buff_head[MAC_QUEUE]
399 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[MAC_QUEUE]);
400 tp->tx_buff_curr[MAC_QUEUE] = tp->tx_buff_head[MAC_QUEUE];
401 tp->tx_buff_end [MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
402
403 /* Allocate BUG transmit buffers. */
404 tp->tx_buff_head[BUG_QUEUE]
405 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[BUG_QUEUE]);
406 tp->tx_buff_curr[BUG_QUEUE] = tp->tx_buff_head[BUG_QUEUE];
407 tp->tx_buff_end[BUG_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
408
409 /* Allocate MAC receive data buffers.
410 * MAC Rx buffer doesn't have to be on a 256 byte boundary.
411 */
412 tp->rx_buff_head[MAC_QUEUE] = (__u16 *)smctr_malloc(dev,
413 RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE]);
414 tp->rx_buff_end[MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
415
416 /* Allocate Non-MAC transmit buffers.
417 * ?? For maximum Netware performance, put Tx Buffers on
418 * ODD Boundry and then restore malloc to Even Boundrys.
419 */
420 smctr_malloc(dev, 1L);
421 tp->tx_buff_head[NON_MAC_QUEUE]
422 = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[NON_MAC_QUEUE]);
423 tp->tx_buff_curr[NON_MAC_QUEUE] = tp->tx_buff_head[NON_MAC_QUEUE];
424 tp->tx_buff_end [NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
425 smctr_malloc(dev, 1L);
426
427 /* Allocate Non-MAC receive data buffers.
428 * To guarantee a minimum of 256 contigous memory to
429 * UM_Receive_Packet's lookahead pointer, before a page
430 * change or ring end is encountered, place each rx buffer on
431 * a 256 byte boundary.
432 */
433 smctr_malloc(dev, TO_256_BYTE_BOUNDRY(tp->sh_mem_used));
434 tp->rx_buff_head[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev,
435 RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[NON_MAC_QUEUE]);
436 tp->rx_buff_end[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0);
437
438 return (0);
439 }
440
441 /* Enter Bypass state. */
smctr_bypass_state(struct net_device * dev)442 static int smctr_bypass_state(struct net_device *dev)
443 {
444 int err;
445
446 if(smctr_debug > 10)
447 printk(KERN_DEBUG "%s: smctr_bypass_state\n", dev->name);
448
449 err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE, JS_BYPASS_STATE);
450
451 return (err);
452 }
453
smctr_checksum_firmware(struct net_device * dev)454 static int smctr_checksum_firmware(struct net_device *dev)
455 {
456 struct net_local *tp = netdev_priv(dev);
457 __u16 i, checksum = 0;
458
459 if(smctr_debug > 10)
460 printk(KERN_DEBUG "%s: smctr_checksum_firmware\n", dev->name);
461
462 smctr_enable_adapter_ctrl_store(dev);
463
464 for(i = 0; i < CS_RAM_SIZE; i += 2)
465 checksum += *((__u16 *)(tp->ram_access + i));
466
467 tp->microcode_version = *(__u16 *)(tp->ram_access
468 + CS_RAM_VERSION_OFFSET);
469 tp->microcode_version >>= 8;
470
471 smctr_disable_adapter_ctrl_store(dev);
472
473 if(checksum)
474 return (checksum);
475
476 return (0);
477 }
478
smctr_chk_mca(struct net_device * dev)479 static int __init smctr_chk_mca(struct net_device *dev)
480 {
481 #ifdef CONFIG_MCA_LEGACY
482 struct net_local *tp = netdev_priv(dev);
483 int current_slot;
484 __u8 r1, r2, r3, r4, r5;
485
486 current_slot = mca_find_unused_adapter(smctr_posid, 0);
487 if(current_slot == MCA_NOTFOUND)
488 return (-ENODEV);
489
490 mca_set_adapter_name(current_slot, smctr_name);
491 mca_mark_as_used(current_slot);
492 tp->slot_num = current_slot;
493
494 r1 = mca_read_stored_pos(tp->slot_num, 2);
495 r2 = mca_read_stored_pos(tp->slot_num, 3);
496
497 if(tp->slot_num)
498 outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num - 1) | CNFG_SLOT_ENABLE_BIT));
499 else
500 outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num) | CNFG_SLOT_ENABLE_BIT));
501
502 r1 = inb(CNFG_POS_REG1);
503 r2 = inb(CNFG_POS_REG0);
504
505 tp->bic_type = BIC_594_CHIP;
506
507 /* IO */
508 r2 = mca_read_stored_pos(tp->slot_num, 2);
509 r2 &= 0xF0;
510 dev->base_addr = ((__u16)r2 << 8) + (__u16)0x800;
511 request_region(dev->base_addr, SMCTR_IO_EXTENT, smctr_name);
512
513 /* IRQ */
514 r5 = mca_read_stored_pos(tp->slot_num, 5);
515 r5 &= 0xC;
516 switch(r5)
517 {
518 case 0:
519 dev->irq = 3;
520 break;
521
522 case 0x4:
523 dev->irq = 4;
524 break;
525
526 case 0x8:
527 dev->irq = 10;
528 break;
529
530 default:
531 dev->irq = 15;
532 break;
533 }
534 if (request_irq(dev->irq, smctr_interrupt, IRQF_SHARED, smctr_name, dev)) {
535 release_region(dev->base_addr, SMCTR_IO_EXTENT);
536 return -ENODEV;
537 }
538
539 /* Get RAM base */
540 r3 = mca_read_stored_pos(tp->slot_num, 3);
541 tp->ram_base = ((__u32)(r3 & 0x7) << 13) + 0x0C0000;
542 if (r3 & 0x8)
543 tp->ram_base += 0x010000;
544 if (r3 & 0x80)
545 tp->ram_base += 0xF00000;
546
547 /* Get Ram Size */
548 r3 &= 0x30;
549 r3 >>= 4;
550
551 tp->ram_usable = (__u16)CNFG_SIZE_8KB << r3;
552 tp->ram_size = (__u16)CNFG_SIZE_64KB;
553 tp->board_id |= TOKEN_MEDIA;
554
555 r4 = mca_read_stored_pos(tp->slot_num, 4);
556 tp->rom_base = ((__u32)(r4 & 0x7) << 13) + 0x0C0000;
557 if (r4 & 0x8)
558 tp->rom_base += 0x010000;
559
560 /* Get ROM size. */
561 r4 >>= 4;
562 switch (r4) {
563 case 0:
564 tp->rom_size = CNFG_SIZE_8KB;
565 break;
566 case 1:
567 tp->rom_size = CNFG_SIZE_16KB;
568 break;
569 case 2:
570 tp->rom_size = CNFG_SIZE_32KB;
571 break;
572 default:
573 tp->rom_size = ROM_DISABLE;
574 }
575
576 /* Get Media Type. */
577 r5 = mca_read_stored_pos(tp->slot_num, 5);
578 r5 &= CNFG_MEDIA_TYPE_MASK;
579 switch(r5)
580 {
581 case (0):
582 tp->media_type = MEDIA_STP_4;
583 break;
584
585 case (1):
586 tp->media_type = MEDIA_STP_16;
587 break;
588
589 case (3):
590 tp->media_type = MEDIA_UTP_16;
591 break;
592
593 default:
594 tp->media_type = MEDIA_UTP_4;
595 break;
596 }
597 tp->media_menu = 14;
598
599 r2 = mca_read_stored_pos(tp->slot_num, 2);
600 if(!(r2 & 0x02))
601 tp->mode_bits |= EARLY_TOKEN_REL;
602
603 /* Disable slot */
604 outb(CNFG_POS_CONTROL_REG, 0);
605
606 tp->board_id = smctr_get_boardid(dev, 1);
607 switch(tp->board_id & 0xffff)
608 {
609 case WD8115TA:
610 smctr_model = "8115T/A";
611 break;
612
613 case WD8115T:
614 if(tp->extra_info & CHIP_REV_MASK)
615 smctr_model = "8115T rev XE";
616 else
617 smctr_model = "8115T rev XD";
618 break;
619
620 default:
621 smctr_model = "Unknown";
622 break;
623 }
624
625 return (0);
626 #else
627 return (-1);
628 #endif /* CONFIG_MCA_LEGACY */
629 }
630
smctr_chg_rx_mask(struct net_device * dev)631 static int smctr_chg_rx_mask(struct net_device *dev)
632 {
633 struct net_local *tp = netdev_priv(dev);
634 int err = 0;
635
636 if(smctr_debug > 10)
637 printk(KERN_DEBUG "%s: smctr_chg_rx_mask\n", dev->name);
638
639 smctr_enable_16bit(dev);
640 smctr_set_page(dev, (__u8 *)tp->ram_access);
641
642 if(tp->mode_bits & LOOPING_MODE_MASK)
643 tp->config_word0 |= RX_OWN_BIT;
644 else
645 tp->config_word0 &= ~RX_OWN_BIT;
646
647 if(tp->receive_mask & PROMISCUOUS_MODE)
648 tp->config_word0 |= PROMISCUOUS_BIT;
649 else
650 tp->config_word0 &= ~PROMISCUOUS_BIT;
651
652 if(tp->receive_mask & ACCEPT_ERR_PACKETS)
653 tp->config_word0 |= SAVBAD_BIT;
654 else
655 tp->config_word0 &= ~SAVBAD_BIT;
656
657 if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
658 tp->config_word0 |= RXATMAC;
659 else
660 tp->config_word0 &= ~RXATMAC;
661
662 if(tp->receive_mask & ACCEPT_MULTI_PROM)
663 tp->config_word1 |= MULTICAST_ADDRESS_BIT;
664 else
665 tp->config_word1 &= ~MULTICAST_ADDRESS_BIT;
666
667 if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING)
668 tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS;
669 else
670 {
671 if(tp->receive_mask & ACCEPT_SOURCE_ROUTING)
672 tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT;
673 else
674 tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS;
675 }
676
677 if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_0,
678 &tp->config_word0)))
679 {
680 return (err);
681 }
682
683 if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_1,
684 &tp->config_word1)))
685 {
686 return (err);
687 }
688
689 smctr_disable_16bit(dev);
690
691 return (0);
692 }
693
smctr_clear_int(struct net_device * dev)694 static int smctr_clear_int(struct net_device *dev)
695 {
696 struct net_local *tp = netdev_priv(dev);
697
698 outb((tp->trc_mask | CSR_CLRTINT), dev->base_addr + CSR);
699
700 return (0);
701 }
702
smctr_clear_trc_reset(int ioaddr)703 static int smctr_clear_trc_reset(int ioaddr)
704 {
705 __u8 r;
706
707 r = inb(ioaddr + MSR);
708 outb(~MSR_RST & r, ioaddr + MSR);
709
710 return (0);
711 }
712
713 /*
714 * The inverse routine to smctr_open().
715 */
smctr_close(struct net_device * dev)716 static int smctr_close(struct net_device *dev)
717 {
718 struct net_local *tp = netdev_priv(dev);
719 struct sk_buff *skb;
720 int err;
721
722 netif_stop_queue(dev);
723
724 tp->cleanup = 1;
725
726 /* Check to see if adapter is already in a closed state. */
727 if(tp->status != OPEN)
728 return (0);
729
730 smctr_enable_16bit(dev);
731 smctr_set_page(dev, (__u8 *)tp->ram_access);
732
733 if((err = smctr_issue_remove_cmd(dev)))
734 {
735 smctr_disable_16bit(dev);
736 return (err);
737 }
738
739 for(;;)
740 {
741 skb = skb_dequeue(&tp->SendSkbQueue);
742 if(skb == NULL)
743 break;
744 tp->QueueSkb++;
745 dev_kfree_skb(skb);
746 }
747
748
749 return (0);
750 }
751
smctr_decode_firmware(struct net_device * dev,const struct firmware * fw)752 static int smctr_decode_firmware(struct net_device *dev,
753 const struct firmware *fw)
754 {
755 struct net_local *tp = netdev_priv(dev);
756 short bit = 0x80, shift = 12;
757 DECODE_TREE_NODE *tree;
758 short branch, tsize;
759 __u16 buff = 0;
760 long weight;
761 __u8 *ucode;
762 __u16 *mem;
763
764 if(smctr_debug > 10)
765 printk(KERN_DEBUG "%s: smctr_decode_firmware\n", dev->name);
766
767 weight = *(long *)(fw->data + WEIGHT_OFFSET);
768 tsize = *(__u8 *)(fw->data + TREE_SIZE_OFFSET);
769 tree = (DECODE_TREE_NODE *)(fw->data + TREE_OFFSET);
770 ucode = (__u8 *)(fw->data + TREE_OFFSET
771 + (tsize * sizeof(DECODE_TREE_NODE)));
772 mem = (__u16 *)(tp->ram_access);
773
774 while(weight)
775 {
776 branch = ROOT;
777 while((tree + branch)->tag != LEAF && weight)
778 {
779 branch = *ucode & bit ? (tree + branch)->llink
780 : (tree + branch)->rlink;
781
782 bit >>= 1;
783 weight--;
784
785 if(bit == 0)
786 {
787 bit = 0x80;
788 ucode++;
789 }
790 }
791
792 buff |= (tree + branch)->info << shift;
793 shift -= 4;
794
795 if(shift < 0)
796 {
797 *(mem++) = SWAP_BYTES(buff);
798 buff = 0;
799 shift = 12;
800 }
801 }
802
803 /* The following assumes the Control Store Memory has
804 * been initialized to zero. If the last partial word
805 * is zero, it will not be written.
806 */
807 if(buff)
808 *(mem++) = SWAP_BYTES(buff);
809
810 return (0);
811 }
812
smctr_disable_16bit(struct net_device * dev)813 static int smctr_disable_16bit(struct net_device *dev)
814 {
815 return (0);
816 }
817
818 /*
819 * On Exit, Adapter is:
820 * 1. TRC is in a reset state and un-initialized.
821 * 2. Adapter memory is enabled.
822 * 3. Control Store memory is out of context (-WCSS is 1).
823 */
smctr_disable_adapter_ctrl_store(struct net_device * dev)824 static int smctr_disable_adapter_ctrl_store(struct net_device *dev)
825 {
826 struct net_local *tp = netdev_priv(dev);
827 int ioaddr = dev->base_addr;
828
829 if(smctr_debug > 10)
830 printk(KERN_DEBUG "%s: smctr_disable_adapter_ctrl_store\n", dev->name);
831
832 tp->trc_mask |= CSR_WCSS;
833 outb(tp->trc_mask, ioaddr + CSR);
834
835 return (0);
836 }
837
smctr_disable_bic_int(struct net_device * dev)838 static int smctr_disable_bic_int(struct net_device *dev)
839 {
840 struct net_local *tp = netdev_priv(dev);
841 int ioaddr = dev->base_addr;
842
843 tp->trc_mask = CSR_MSK_ALL | CSR_MSKCBUSY
844 | CSR_MSKTINT | CSR_WCSS;
845 outb(tp->trc_mask, ioaddr + CSR);
846
847 return (0);
848 }
849
smctr_enable_16bit(struct net_device * dev)850 static int smctr_enable_16bit(struct net_device *dev)
851 {
852 struct net_local *tp = netdev_priv(dev);
853 __u8 r;
854
855 if(tp->adapter_bus == BUS_ISA16_TYPE)
856 {
857 r = inb(dev->base_addr + LAAR);
858 outb((r | LAAR_MEM16ENB), dev->base_addr + LAAR);
859 }
860
861 return (0);
862 }
863
864 /*
865 * To enable the adapter control store memory:
866 * 1. Adapter must be in a RESET state.
867 * 2. Adapter memory must be enabled.
868 * 3. Control Store Memory is in context (-WCSS is 0).
869 */
smctr_enable_adapter_ctrl_store(struct net_device * dev)870 static int smctr_enable_adapter_ctrl_store(struct net_device *dev)
871 {
872 struct net_local *tp = netdev_priv(dev);
873 int ioaddr = dev->base_addr;
874
875 if(smctr_debug > 10)
876 printk(KERN_DEBUG "%s: smctr_enable_adapter_ctrl_store\n", dev->name);
877
878 smctr_set_trc_reset(ioaddr);
879 smctr_enable_adapter_ram(dev);
880
881 tp->trc_mask &= ~CSR_WCSS;
882 outb(tp->trc_mask, ioaddr + CSR);
883
884 return (0);
885 }
886
smctr_enable_adapter_ram(struct net_device * dev)887 static int smctr_enable_adapter_ram(struct net_device *dev)
888 {
889 int ioaddr = dev->base_addr;
890 __u8 r;
891
892 if(smctr_debug > 10)
893 printk(KERN_DEBUG "%s: smctr_enable_adapter_ram\n", dev->name);
894
895 r = inb(ioaddr + MSR);
896 outb(MSR_MEMB | r, ioaddr + MSR);
897
898 return (0);
899 }
900
smctr_enable_bic_int(struct net_device * dev)901 static int smctr_enable_bic_int(struct net_device *dev)
902 {
903 struct net_local *tp = netdev_priv(dev);
904 int ioaddr = dev->base_addr;
905 __u8 r;
906
907 switch(tp->bic_type)
908 {
909 case (BIC_584_CHIP):
910 tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS;
911 outb(tp->trc_mask, ioaddr + CSR);
912 r = inb(ioaddr + IRR);
913 outb(r | IRR_IEN, ioaddr + IRR);
914 break;
915
916 case (BIC_594_CHIP):
917 tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS;
918 outb(tp->trc_mask, ioaddr + CSR);
919 r = inb(ioaddr + IMCCR);
920 outb(r | IMCCR_EIL, ioaddr + IMCCR);
921 break;
922 }
923
924 return (0);
925 }
926
smctr_chk_isa(struct net_device * dev)927 static int __init smctr_chk_isa(struct net_device *dev)
928 {
929 struct net_local *tp = netdev_priv(dev);
930 int ioaddr = dev->base_addr;
931 __u8 r1, r2, b, chksum = 0;
932 __u16 r;
933 int i;
934 int err = -ENODEV;
935
936 if(smctr_debug > 10)
937 printk(KERN_DEBUG "%s: smctr_chk_isa %#4x\n", dev->name, ioaddr);
938
939 if((ioaddr & 0x1F) != 0)
940 goto out;
941
942 /* Grab the region so that no one else tries to probe our ioports. */
943 if (!request_region(ioaddr, SMCTR_IO_EXTENT, smctr_name)) {
944 err = -EBUSY;
945 goto out;
946 }
947
948 /* Checksum SMC node address */
949 for(i = 0; i < 8; i++)
950 {
951 b = inb(ioaddr + LAR0 + i);
952 chksum += b;
953 }
954
955 if (chksum != NODE_ADDR_CKSUM)
956 goto out2;
957
958 b = inb(ioaddr + BDID);
959 if(b != BRD_ID_8115T)
960 {
961 printk(KERN_ERR "%s: The adapter found is not supported\n", dev->name);
962 goto out2;
963 }
964
965 /* Check for 8115T Board ID */
966 r2 = 0;
967 for(r = 0; r < 8; r++)
968 {
969 r1 = inb(ioaddr + 0x8 + r);
970 r2 += r1;
971 }
972
973 /* value of RegF adds up the sum to 0xFF */
974 if((r2 != 0xFF) && (r2 != 0xEE))
975 goto out2;
976
977 /* Get adapter ID */
978 tp->board_id = smctr_get_boardid(dev, 0);
979 switch(tp->board_id & 0xffff)
980 {
981 case WD8115TA:
982 smctr_model = "8115T/A";
983 break;
984
985 case WD8115T:
986 if(tp->extra_info & CHIP_REV_MASK)
987 smctr_model = "8115T rev XE";
988 else
989 smctr_model = "8115T rev XD";
990 break;
991
992 default:
993 smctr_model = "Unknown";
994 break;
995 }
996
997 /* Store BIC type. */
998 tp->bic_type = BIC_584_CHIP;
999 tp->nic_type = NIC_825_CHIP;
1000
1001 /* Copy Ram Size */
1002 tp->ram_usable = CNFG_SIZE_16KB;
1003 tp->ram_size = CNFG_SIZE_64KB;
1004
1005 /* Get 58x Ram Base */
1006 r1 = inb(ioaddr);
1007 r1 &= 0x3F;
1008
1009 r2 = inb(ioaddr + CNFG_LAAR_584);
1010 r2 &= CNFG_LAAR_MASK;
1011 r2 <<= 3;
1012 r2 |= ((r1 & 0x38) >> 3);
1013
1014 tp->ram_base = ((__u32)r2 << 16) + (((__u32)(r1 & 0x7)) << 13);
1015
1016 /* Get 584 Irq */
1017 r1 = 0;
1018 r1 = inb(ioaddr + CNFG_ICR_583);
1019 r1 &= CNFG_ICR_IR2_584;
1020
1021 r2 = inb(ioaddr + CNFG_IRR_583);
1022 r2 &= CNFG_IRR_IRQS; /* 0x60 */
1023 r2 >>= 5;
1024
1025 switch(r2)
1026 {
1027 case 0:
1028 if(r1 == 0)
1029 dev->irq = 2;
1030 else
1031 dev->irq = 10;
1032 break;
1033
1034 case 1:
1035 if(r1 == 0)
1036 dev->irq = 3;
1037 else
1038 dev->irq = 11;
1039 break;
1040
1041 case 2:
1042 if(r1 == 0)
1043 {
1044 if(tp->extra_info & ALTERNATE_IRQ_BIT)
1045 dev->irq = 5;
1046 else
1047 dev->irq = 4;
1048 }
1049 else
1050 dev->irq = 15;
1051 break;
1052
1053 case 3:
1054 if(r1 == 0)
1055 dev->irq = 7;
1056 else
1057 dev->irq = 4;
1058 break;
1059
1060 default:
1061 printk(KERN_ERR "%s: No IRQ found aborting\n", dev->name);
1062 goto out2;
1063 }
1064
1065 if (request_irq(dev->irq, smctr_interrupt, IRQF_SHARED, smctr_name, dev))
1066 goto out2;
1067
1068 /* Get 58x Rom Base */
1069 r1 = inb(ioaddr + CNFG_BIO_583);
1070 r1 &= 0x3E;
1071 r1 |= 0x40;
1072
1073 tp->rom_base = (__u32)r1 << 13;
1074
1075 /* Get 58x Rom Size */
1076 r1 = inb(ioaddr + CNFG_BIO_583);
1077 r1 &= 0xC0;
1078 if(r1 == 0)
1079 tp->rom_size = ROM_DISABLE;
1080 else
1081 {
1082 r1 >>= 6;
1083 tp->rom_size = (__u16)CNFG_SIZE_8KB << r1;
1084 }
1085
1086 /* Get 58x Boot Status */
1087 r1 = inb(ioaddr + CNFG_GP2);
1088
1089 tp->mode_bits &= (~BOOT_STATUS_MASK);
1090
1091 if(r1 & CNFG_GP2_BOOT_NIBBLE)
1092 tp->mode_bits |= BOOT_TYPE_1;
1093
1094 /* Get 58x Zero Wait State */
1095 tp->mode_bits &= (~ZERO_WAIT_STATE_MASK);
1096
1097 r1 = inb(ioaddr + CNFG_IRR_583);
1098
1099 if(r1 & CNFG_IRR_ZWS)
1100 tp->mode_bits |= ZERO_WAIT_STATE_8_BIT;
1101
1102 if(tp->board_id & BOARD_16BIT)
1103 {
1104 r1 = inb(ioaddr + CNFG_LAAR_584);
1105
1106 if(r1 & CNFG_LAAR_ZWS)
1107 tp->mode_bits |= ZERO_WAIT_STATE_16_BIT;
1108 }
1109
1110 /* Get 584 Media Menu */
1111 tp->media_menu = 14;
1112 r1 = inb(ioaddr + CNFG_IRR_583);
1113
1114 tp->mode_bits &= 0xf8ff; /* (~CNFG_INTERFACE_TYPE_MASK) */
1115 if((tp->board_id & TOKEN_MEDIA) == TOKEN_MEDIA)
1116 {
1117 /* Get Advanced Features */
1118 if(((r1 & 0x6) >> 1) == 0x3)
1119 tp->media_type |= MEDIA_UTP_16;
1120 else
1121 {
1122 if(((r1 & 0x6) >> 1) == 0x2)
1123 tp->media_type |= MEDIA_STP_16;
1124 else
1125 {
1126 if(((r1 & 0x6) >> 1) == 0x1)
1127 tp->media_type |= MEDIA_UTP_4;
1128
1129 else
1130 tp->media_type |= MEDIA_STP_4;
1131 }
1132 }
1133
1134 r1 = inb(ioaddr + CNFG_GP2);
1135 if(!(r1 & 0x2) ) /* GP2_ETRD */
1136 tp->mode_bits |= EARLY_TOKEN_REL;
1137
1138 /* see if the chip is corrupted
1139 if(smctr_read_584_chksum(ioaddr))
1140 {
1141 printk(KERN_ERR "%s: EEPROM Checksum Failure\n", dev->name);
1142 free_irq(dev->irq, dev);
1143 goto out2;
1144 }
1145 */
1146 }
1147
1148 return (0);
1149
1150 out2:
1151 release_region(ioaddr, SMCTR_IO_EXTENT);
1152 out:
1153 return err;
1154 }
1155
smctr_get_boardid(struct net_device * dev,int mca)1156 static int __init smctr_get_boardid(struct net_device *dev, int mca)
1157 {
1158 struct net_local *tp = netdev_priv(dev);
1159 int ioaddr = dev->base_addr;
1160 __u8 r, r1, IdByte;
1161 __u16 BoardIdMask;
1162
1163 tp->board_id = BoardIdMask = 0;
1164
1165 if(mca)
1166 {
1167 BoardIdMask |= (MICROCHANNEL+INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT);
1168 tp->extra_info |= (INTERFACE_594_CHIP+RAM_SIZE_64K+NIC_825_BIT+ALTERNATE_IRQ_BIT+SLOT_16BIT);
1169 }
1170 else
1171 {
1172 BoardIdMask|=(INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT);
1173 tp->extra_info |= (INTERFACE_584_CHIP + RAM_SIZE_64K
1174 + NIC_825_BIT + ALTERNATE_IRQ_BIT);
1175 }
1176
1177 if(!mca)
1178 {
1179 r = inb(ioaddr + BID_REG_1);
1180 r &= 0x0c;
1181 outb(r, ioaddr + BID_REG_1);
1182 r = inb(ioaddr + BID_REG_1);
1183
1184 if(r & BID_SIXTEEN_BIT_BIT)
1185 {
1186 tp->extra_info |= SLOT_16BIT;
1187 tp->adapter_bus = BUS_ISA16_TYPE;
1188 }
1189 else
1190 tp->adapter_bus = BUS_ISA8_TYPE;
1191 }
1192 else
1193 tp->adapter_bus = BUS_MCA_TYPE;
1194
1195 /* Get Board Id Byte */
1196 IdByte = inb(ioaddr + BID_BOARD_ID_BYTE);
1197
1198 /* if Major version > 1.0 then
1199 * return;
1200 */
1201 if(IdByte & 0xF8)
1202 return (-1);
1203
1204 r1 = inb(ioaddr + BID_REG_1);
1205 r1 &= BID_ICR_MASK;
1206 r1 |= BID_OTHER_BIT;
1207
1208 outb(r1, ioaddr + BID_REG_1);
1209 r1 = inb(ioaddr + BID_REG_3);
1210
1211 r1 &= BID_EAR_MASK;
1212 r1 |= BID_ENGR_PAGE;
1213
1214 outb(r1, ioaddr + BID_REG_3);
1215 r1 = inb(ioaddr + BID_REG_1);
1216 r1 &= BID_ICR_MASK;
1217 r1 |= (BID_RLA | BID_OTHER_BIT);
1218
1219 outb(r1, ioaddr + BID_REG_1);
1220
1221 r1 = inb(ioaddr + BID_REG_1);
1222 while(r1 & BID_RECALL_DONE_MASK)
1223 r1 = inb(ioaddr + BID_REG_1);
1224
1225 r = inb(ioaddr + BID_LAR_0 + BID_REG_6);
1226
1227 /* clear chip rev bits */
1228 tp->extra_info &= ~CHIP_REV_MASK;
1229 tp->extra_info |= ((r & BID_EEPROM_CHIP_REV_MASK) << 6);
1230
1231 r1 = inb(ioaddr + BID_REG_1);
1232 r1 &= BID_ICR_MASK;
1233 r1 |= BID_OTHER_BIT;
1234
1235 outb(r1, ioaddr + BID_REG_1);
1236 r1 = inb(ioaddr + BID_REG_3);
1237
1238 r1 &= BID_EAR_MASK;
1239 r1 |= BID_EA6;
1240
1241 outb(r1, ioaddr + BID_REG_3);
1242 r1 = inb(ioaddr + BID_REG_1);
1243
1244 r1 &= BID_ICR_MASK;
1245 r1 |= BID_RLA;
1246
1247 outb(r1, ioaddr + BID_REG_1);
1248 r1 = inb(ioaddr + BID_REG_1);
1249
1250 while(r1 & BID_RECALL_DONE_MASK)
1251 r1 = inb(ioaddr + BID_REG_1);
1252
1253 return (BoardIdMask);
1254 }
1255
smctr_get_group_address(struct net_device * dev)1256 static int smctr_get_group_address(struct net_device *dev)
1257 {
1258 smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_GROUP_ADDR);
1259
1260 return(smctr_wait_cmd(dev));
1261 }
1262
smctr_get_functional_address(struct net_device * dev)1263 static int smctr_get_functional_address(struct net_device *dev)
1264 {
1265 smctr_issue_read_word_cmd(dev, RW_FUNCTIONAL_ADDR);
1266
1267 return(smctr_wait_cmd(dev));
1268 }
1269
1270 /* Calculate number of Non-MAC receive BDB's and data buffers.
1271 * This function must simulate allocateing shared memory exactly
1272 * as the allocate_shared_memory function above.
1273 */
smctr_get_num_rx_bdbs(struct net_device * dev)1274 static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev)
1275 {
1276 struct net_local *tp = netdev_priv(dev);
1277 unsigned int mem_used = 0;
1278
1279 /* Allocate System Control Blocks. */
1280 mem_used += sizeof(SCGBlock);
1281
1282 mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1283 mem_used += sizeof(SCLBlock);
1284
1285 mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1286 mem_used += sizeof(ACBlock) * tp->num_acbs;
1287
1288 mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1289 mem_used += sizeof(ISBlock);
1290
1291 mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1292 mem_used += MISC_DATA_SIZE;
1293
1294 /* Allocate transmit FCB's. */
1295 mem_used += TO_PARAGRAPH_BOUNDRY(mem_used);
1296
1297 mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE];
1298 mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE];
1299 mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE];
1300
1301 /* Allocate transmit BDBs. */
1302 mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE];
1303 mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE];
1304 mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE];
1305
1306 /* Allocate receive FCBs. */
1307 mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE];
1308 mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE];
1309
1310 /* Allocate receive BDBs. */
1311 mem_used += sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE];
1312
1313 /* Allocate MAC transmit buffers.
1314 * MAC transmit buffers don't have to be on an ODD Boundry.
1315 */
1316 mem_used += tp->tx_buff_size[MAC_QUEUE];
1317
1318 /* Allocate BUG transmit buffers. */
1319 mem_used += tp->tx_buff_size[BUG_QUEUE];
1320
1321 /* Allocate MAC receive data buffers.
1322 * MAC receive buffers don't have to be on a 256 byte boundary.
1323 */
1324 mem_used += RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE];
1325
1326 /* Allocate Non-MAC transmit buffers.
1327 * For maximum Netware performance, put Tx Buffers on
1328 * ODD Boundry,and then restore malloc to Even Boundrys.
1329 */
1330 mem_used += 1L;
1331 mem_used += tp->tx_buff_size[NON_MAC_QUEUE];
1332 mem_used += 1L;
1333
1334 /* CALCULATE NUMBER OF NON-MAC RX BDB'S
1335 * AND NON-MAC RX DATA BUFFERS
1336 *
1337 * Make sure the mem_used offset at this point is the
1338 * same as in allocate_shared memory or the following
1339 * boundary adjustment will be incorrect (i.e. not allocating
1340 * the non-mac receive buffers above cannot change the 256
1341 * byte offset).
1342 *
1343 * Since this cannot be guaranteed, adding the full 256 bytes
1344 * to the amount of shared memory used at this point will guaranteed
1345 * that the rx data buffers do not overflow shared memory.
1346 */
1347 mem_used += 0x100;
1348
1349 return((0xffff - mem_used) / (RX_DATA_BUFFER_SIZE + sizeof(BDBlock)));
1350 }
1351
smctr_get_physical_drop_number(struct net_device * dev)1352 static int smctr_get_physical_drop_number(struct net_device *dev)
1353 {
1354 smctr_issue_read_word_cmd(dev, RW_PHYSICAL_DROP_NUMBER);
1355
1356 return(smctr_wait_cmd(dev));
1357 }
1358
smctr_get_rx_pointer(struct net_device * dev,short queue)1359 static __u8 * smctr_get_rx_pointer(struct net_device *dev, short queue)
1360 {
1361 struct net_local *tp = netdev_priv(dev);
1362 BDBlock *bdb;
1363
1364 bdb = (BDBlock *)((__u32)tp->ram_access
1365 + (__u32)(tp->rx_fcb_curr[queue]->trc_bdb_ptr));
1366
1367 tp->rx_fcb_curr[queue]->bdb_ptr = bdb;
1368
1369 return ((__u8 *)bdb->data_block_ptr);
1370 }
1371
smctr_get_station_id(struct net_device * dev)1372 static int smctr_get_station_id(struct net_device *dev)
1373 {
1374 smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_MAC_ADDRESS);
1375
1376 return(smctr_wait_cmd(dev));
1377 }
1378
1379 /*
1380 * Get the current statistics. This may be called with the card open
1381 * or closed.
1382 */
smctr_get_stats(struct net_device * dev)1383 static struct net_device_stats *smctr_get_stats(struct net_device *dev)
1384 {
1385 struct net_local *tp = netdev_priv(dev);
1386
1387 return ((struct net_device_stats *)&tp->MacStat);
1388 }
1389
smctr_get_tx_fcb(struct net_device * dev,__u16 queue,__u16 bytes_count)1390 static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue,
1391 __u16 bytes_count)
1392 {
1393 struct net_local *tp = netdev_priv(dev);
1394 FCBlock *pFCB;
1395 BDBlock *pbdb;
1396 unsigned short alloc_size;
1397 unsigned short *temp;
1398
1399 if(smctr_debug > 20)
1400 printk(KERN_DEBUG "smctr_get_tx_fcb\n");
1401
1402 /* check if there is enough FCB blocks */
1403 if(tp->num_tx_fcbs_used[queue] >= tp->num_tx_fcbs[queue])
1404 return ((FCBlock *)(-1L));
1405
1406 /* round off the input pkt size to the nearest even number */
1407 alloc_size = (bytes_count + 1) & 0xfffe;
1408
1409 /* check if enough mem */
1410 if((tp->tx_buff_used[queue] + alloc_size) > tp->tx_buff_size[queue])
1411 return ((FCBlock *)(-1L));
1412
1413 /* check if past the end ;
1414 * if exactly enough mem to end of ring, alloc from front.
1415 * this avoids update of curr when curr = end
1416 */
1417 if(((unsigned long)(tp->tx_buff_curr[queue]) + alloc_size)
1418 >= (unsigned long)(tp->tx_buff_end[queue]))
1419 {
1420 /* check if enough memory from ring head */
1421 alloc_size = alloc_size +
1422 (__u16)((__u32)tp->tx_buff_end[queue]
1423 - (__u32)tp->tx_buff_curr[queue]);
1424
1425 if((tp->tx_buff_used[queue] + alloc_size)
1426 > tp->tx_buff_size[queue])
1427 {
1428 return ((FCBlock *)(-1L));
1429 }
1430
1431 /* ring wrap */
1432 tp->tx_buff_curr[queue] = tp->tx_buff_head[queue];
1433 }
1434
1435 tp->tx_buff_used[queue] += alloc_size;
1436 tp->num_tx_fcbs_used[queue]++;
1437 tp->tx_fcb_curr[queue]->frame_length = bytes_count;
1438 tp->tx_fcb_curr[queue]->memory_alloc = alloc_size;
1439 temp = tp->tx_buff_curr[queue];
1440 tp->tx_buff_curr[queue]
1441 = (__u16 *)((__u32)temp + (__u32)((bytes_count + 1) & 0xfffe));
1442
1443 pbdb = tp->tx_fcb_curr[queue]->bdb_ptr;
1444 pbdb->buffer_length = bytes_count;
1445 pbdb->data_block_ptr = temp;
1446 pbdb->trc_data_block_ptr = TRC_POINTER(temp);
1447
1448 pFCB = tp->tx_fcb_curr[queue];
1449 tp->tx_fcb_curr[queue] = tp->tx_fcb_curr[queue]->next_ptr;
1450
1451 return (pFCB);
1452 }
1453
smctr_get_upstream_neighbor_addr(struct net_device * dev)1454 static int smctr_get_upstream_neighbor_addr(struct net_device *dev)
1455 {
1456 smctr_issue_read_word_cmd(dev, RW_UPSTREAM_NEIGHBOR_ADDRESS);
1457
1458 return(smctr_wait_cmd(dev));
1459 }
1460
smctr_hardware_send_packet(struct net_device * dev,struct net_local * tp)1461 static int smctr_hardware_send_packet(struct net_device *dev,
1462 struct net_local *tp)
1463 {
1464 struct tr_statistics *tstat = &tp->MacStat;
1465 struct sk_buff *skb;
1466 FCBlock *fcb;
1467
1468 if(smctr_debug > 10)
1469 printk(KERN_DEBUG"%s: smctr_hardware_send_packet\n", dev->name);
1470
1471 if(tp->status != OPEN)
1472 return (-1);
1473
1474 if(tp->monitor_state_ready != 1)
1475 return (-1);
1476
1477 for(;;)
1478 {
1479 /* Send first buffer from queue */
1480 skb = skb_dequeue(&tp->SendSkbQueue);
1481 if(skb == NULL)
1482 return (-1);
1483
1484 tp->QueueSkb++;
1485
1486 if(skb->len < SMC_HEADER_SIZE || skb->len > tp->max_packet_size) return (-1);
1487
1488 smctr_enable_16bit(dev);
1489 smctr_set_page(dev, (__u8 *)tp->ram_access);
1490
1491 if((fcb = smctr_get_tx_fcb(dev, NON_MAC_QUEUE, skb->len))
1492 == (FCBlock *)(-1L))
1493 {
1494 smctr_disable_16bit(dev);
1495 return (-1);
1496 }
1497
1498 smctr_tx_move_frame(dev, skb,
1499 (__u8 *)fcb->bdb_ptr->data_block_ptr, skb->len);
1500
1501 smctr_set_page(dev, (__u8 *)fcb);
1502
1503 smctr_trc_send_packet(dev, fcb, NON_MAC_QUEUE);
1504 dev_kfree_skb(skb);
1505
1506 tstat->tx_packets++;
1507
1508 smctr_disable_16bit(dev);
1509 }
1510
1511 return (0);
1512 }
1513
smctr_init_acbs(struct net_device * dev)1514 static int smctr_init_acbs(struct net_device *dev)
1515 {
1516 struct net_local *tp = netdev_priv(dev);
1517 unsigned int i;
1518 ACBlock *acb;
1519
1520 if(smctr_debug > 10)
1521 printk(KERN_DEBUG "%s: smctr_init_acbs\n", dev->name);
1522
1523 acb = tp->acb_head;
1524 acb->cmd_done_status = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL);
1525 acb->cmd_info = ACB_CHAIN_END;
1526 acb->cmd = 0;
1527 acb->subcmd = 0;
1528 acb->data_offset_lo = 0;
1529 acb->data_offset_hi = 0;
1530 acb->next_ptr
1531 = (ACBlock *)(((char *)acb) + sizeof(ACBlock));
1532 acb->trc_next_ptr = TRC_POINTER(acb->next_ptr);
1533
1534 for(i = 1; i < tp->num_acbs; i++)
1535 {
1536 acb = acb->next_ptr;
1537 acb->cmd_done_status
1538 = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL);
1539 acb->cmd_info = ACB_CHAIN_END;
1540 acb->cmd = 0;
1541 acb->subcmd = 0;
1542 acb->data_offset_lo = 0;
1543 acb->data_offset_hi = 0;
1544 acb->next_ptr
1545 = (ACBlock *)(((char *)acb) + sizeof(ACBlock));
1546 acb->trc_next_ptr = TRC_POINTER(acb->next_ptr);
1547 }
1548
1549 acb->next_ptr = tp->acb_head;
1550 acb->trc_next_ptr = TRC_POINTER(tp->acb_head);
1551 tp->acb_next = tp->acb_head->next_ptr;
1552 tp->acb_curr = tp->acb_head->next_ptr;
1553 tp->num_acbs_used = 0;
1554
1555 return (0);
1556 }
1557
smctr_init_adapter(struct net_device * dev)1558 static int smctr_init_adapter(struct net_device *dev)
1559 {
1560 struct net_local *tp = netdev_priv(dev);
1561 int err;
1562
1563 if(smctr_debug > 10)
1564 printk(KERN_DEBUG "%s: smctr_init_adapter\n", dev->name);
1565
1566 tp->status = CLOSED;
1567 tp->page_offset_mask = (tp->ram_usable * 1024) - 1;
1568 skb_queue_head_init(&tp->SendSkbQueue);
1569 tp->QueueSkb = MAX_TX_QUEUE;
1570
1571 if(!(tp->group_address_0 & 0x0080))
1572 tp->group_address_0 |= 0x00C0;
1573
1574 if(!(tp->functional_address_0 & 0x00C0))
1575 tp->functional_address_0 |= 0x00C0;
1576
1577 tp->functional_address[0] &= 0xFF7F;
1578
1579 if(tp->authorized_function_classes == 0)
1580 tp->authorized_function_classes = 0x7FFF;
1581
1582 if(tp->authorized_access_priority == 0)
1583 tp->authorized_access_priority = 0x06;
1584
1585 smctr_disable_bic_int(dev);
1586 smctr_set_trc_reset(dev->base_addr);
1587
1588 smctr_enable_16bit(dev);
1589 smctr_set_page(dev, (__u8 *)tp->ram_access);
1590
1591 if(smctr_checksum_firmware(dev))
1592 {
1593 printk(KERN_ERR "%s: Previously loaded firmware is missing\n",dev->name); return (-ENOENT);
1594 }
1595
1596 if((err = smctr_ram_memory_test(dev)))
1597 {
1598 printk(KERN_ERR "%s: RAM memory test failed.\n", dev->name);
1599 return (-EIO);
1600 }
1601
1602 smctr_set_rx_look_ahead(dev);
1603 smctr_load_node_addr(dev);
1604
1605 /* Initialize adapter for Internal Self Test. */
1606 smctr_reset_adapter(dev);
1607 if((err = smctr_init_card_real(dev)))
1608 {
1609 printk(KERN_ERR "%s: Initialization of card failed (%d)\n",
1610 dev->name, err);
1611 return (-EINVAL);
1612 }
1613
1614 /* This routine clobbers the TRC's internal registers. */
1615 if((err = smctr_internal_self_test(dev)))
1616 {
1617 printk(KERN_ERR "%s: Card failed internal self test (%d)\n",
1618 dev->name, err);
1619 return (-EINVAL);
1620 }
1621
1622 /* Re-Initialize adapter's internal registers */
1623 smctr_reset_adapter(dev);
1624 if((err = smctr_init_card_real(dev)))
1625 {
1626 printk(KERN_ERR "%s: Initialization of card failed (%d)\n",
1627 dev->name, err);
1628 return (-EINVAL);
1629 }
1630
1631 smctr_enable_bic_int(dev);
1632
1633 if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK)))
1634 return (err);
1635
1636 smctr_disable_16bit(dev);
1637
1638 return (0);
1639 }
1640
smctr_init_card_real(struct net_device * dev)1641 static int smctr_init_card_real(struct net_device *dev)
1642 {
1643 struct net_local *tp = netdev_priv(dev);
1644 int err = 0;
1645
1646 if(smctr_debug > 10)
1647 printk(KERN_DEBUG "%s: smctr_init_card_real\n", dev->name);
1648
1649 tp->sh_mem_used = 0;
1650 tp->num_acbs = NUM_OF_ACBS;
1651
1652 /* Range Check Max Packet Size */
1653 if(tp->max_packet_size < 256)
1654 tp->max_packet_size = 256;
1655 else
1656 {
1657 if(tp->max_packet_size > NON_MAC_TX_BUFFER_MEMORY)
1658 tp->max_packet_size = NON_MAC_TX_BUFFER_MEMORY;
1659 }
1660
1661 tp->num_of_tx_buffs = (NON_MAC_TX_BUFFER_MEMORY
1662 / tp->max_packet_size) - 1;
1663
1664 if(tp->num_of_tx_buffs > NUM_NON_MAC_TX_FCBS)
1665 tp->num_of_tx_buffs = NUM_NON_MAC_TX_FCBS;
1666 else
1667 {
1668 if(tp->num_of_tx_buffs == 0)
1669 tp->num_of_tx_buffs = 1;
1670 }
1671
1672 /* Tx queue constants */
1673 tp->num_tx_fcbs [BUG_QUEUE] = NUM_BUG_TX_FCBS;
1674 tp->num_tx_bdbs [BUG_QUEUE] = NUM_BUG_TX_BDBS;
1675 tp->tx_buff_size [BUG_QUEUE] = BUG_TX_BUFFER_MEMORY;
1676 tp->tx_buff_used [BUG_QUEUE] = 0;
1677 tp->tx_queue_status [BUG_QUEUE] = NOT_TRANSMITING;
1678
1679 tp->num_tx_fcbs [MAC_QUEUE] = NUM_MAC_TX_FCBS;
1680 tp->num_tx_bdbs [MAC_QUEUE] = NUM_MAC_TX_BDBS;
1681 tp->tx_buff_size [MAC_QUEUE] = MAC_TX_BUFFER_MEMORY;
1682 tp->tx_buff_used [MAC_QUEUE] = 0;
1683 tp->tx_queue_status [MAC_QUEUE] = NOT_TRANSMITING;
1684
1685 tp->num_tx_fcbs [NON_MAC_QUEUE] = NUM_NON_MAC_TX_FCBS;
1686 tp->num_tx_bdbs [NON_MAC_QUEUE] = NUM_NON_MAC_TX_BDBS;
1687 tp->tx_buff_size [NON_MAC_QUEUE] = NON_MAC_TX_BUFFER_MEMORY;
1688 tp->tx_buff_used [NON_MAC_QUEUE] = 0;
1689 tp->tx_queue_status [NON_MAC_QUEUE] = NOT_TRANSMITING;
1690
1691 /* Receive Queue Constants */
1692 tp->num_rx_fcbs[MAC_QUEUE] = NUM_MAC_RX_FCBS;
1693 tp->num_rx_bdbs[MAC_QUEUE] = NUM_MAC_RX_BDBS;
1694
1695 if(tp->extra_info & CHIP_REV_MASK)
1696 tp->num_rx_fcbs[NON_MAC_QUEUE] = 78; /* 825 Rev. XE */
1697 else
1698 tp->num_rx_fcbs[NON_MAC_QUEUE] = 7; /* 825 Rev. XD */
1699
1700 tp->num_rx_bdbs[NON_MAC_QUEUE] = smctr_get_num_rx_bdbs(dev);
1701
1702 smctr_alloc_shared_memory(dev);
1703 smctr_init_shared_memory(dev);
1704
1705 if((err = smctr_issue_init_timers_cmd(dev)))
1706 return (err);
1707
1708 if((err = smctr_issue_init_txrx_cmd(dev)))
1709 {
1710 printk(KERN_ERR "%s: Hardware failure\n", dev->name);
1711 return (err);
1712 }
1713
1714 return (0);
1715 }
1716
smctr_init_rx_bdbs(struct net_device * dev)1717 static int smctr_init_rx_bdbs(struct net_device *dev)
1718 {
1719 struct net_local *tp = netdev_priv(dev);
1720 unsigned int i, j;
1721 BDBlock *bdb;
1722 __u16 *buf;
1723
1724 if(smctr_debug > 10)
1725 printk(KERN_DEBUG "%s: smctr_init_rx_bdbs\n", dev->name);
1726
1727 for(i = 0; i < NUM_RX_QS_USED; i++)
1728 {
1729 bdb = tp->rx_bdb_head[i];
1730 buf = tp->rx_buff_head[i];
1731 bdb->info = (BDB_CHAIN_END | BDB_NO_WARNING);
1732 bdb->buffer_length = RX_DATA_BUFFER_SIZE;
1733 bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
1734 bdb->data_block_ptr = buf;
1735 bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1736
1737 if(i == NON_MAC_QUEUE)
1738 bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf);
1739 else
1740 bdb->trc_data_block_ptr = TRC_POINTER(buf);
1741
1742 for(j = 1; j < tp->num_rx_bdbs[i]; j++)
1743 {
1744 bdb->next_ptr->back_ptr = bdb;
1745 bdb = bdb->next_ptr;
1746 buf = (__u16 *)((char *)buf + RX_DATA_BUFFER_SIZE);
1747 bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
1748 bdb->buffer_length = RX_DATA_BUFFER_SIZE;
1749 bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
1750 bdb->data_block_ptr = buf;
1751 bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1752
1753 if(i == NON_MAC_QUEUE)
1754 bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf);
1755 else
1756 bdb->trc_data_block_ptr = TRC_POINTER(buf);
1757 }
1758
1759 bdb->next_ptr = tp->rx_bdb_head[i];
1760 bdb->trc_next_ptr = TRC_POINTER(tp->rx_bdb_head[i]);
1761
1762 tp->rx_bdb_head[i]->back_ptr = bdb;
1763 tp->rx_bdb_curr[i] = tp->rx_bdb_head[i]->next_ptr;
1764 }
1765
1766 return (0);
1767 }
1768
smctr_init_rx_fcbs(struct net_device * dev)1769 static int smctr_init_rx_fcbs(struct net_device *dev)
1770 {
1771 struct net_local *tp = netdev_priv(dev);
1772 unsigned int i, j;
1773 FCBlock *fcb;
1774
1775 for(i = 0; i < NUM_RX_QS_USED; i++)
1776 {
1777 fcb = tp->rx_fcb_head[i];
1778 fcb->frame_status = 0;
1779 fcb->frame_length = 0;
1780 fcb->info = FCB_CHAIN_END;
1781 fcb->next_ptr = (FCBlock *)(((char*)fcb) + sizeof(FCBlock));
1782 if(i == NON_MAC_QUEUE)
1783 fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr);
1784 else
1785 fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1786
1787 for(j = 1; j < tp->num_rx_fcbs[i]; j++)
1788 {
1789 fcb->next_ptr->back_ptr = fcb;
1790 fcb = fcb->next_ptr;
1791 fcb->frame_status = 0;
1792 fcb->frame_length = 0;
1793 fcb->info = FCB_WARNING;
1794 fcb->next_ptr
1795 = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
1796
1797 if(i == NON_MAC_QUEUE)
1798 fcb->trc_next_ptr
1799 = RX_FCB_TRC_POINTER(fcb->next_ptr);
1800 else
1801 fcb->trc_next_ptr
1802 = TRC_POINTER(fcb->next_ptr);
1803 }
1804
1805 fcb->next_ptr = tp->rx_fcb_head[i];
1806
1807 if(i == NON_MAC_QUEUE)
1808 fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr);
1809 else
1810 fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1811
1812 tp->rx_fcb_head[i]->back_ptr = fcb;
1813 tp->rx_fcb_curr[i] = tp->rx_fcb_head[i]->next_ptr;
1814 }
1815
1816 return(0);
1817 }
1818
smctr_init_shared_memory(struct net_device * dev)1819 static int smctr_init_shared_memory(struct net_device *dev)
1820 {
1821 struct net_local *tp = netdev_priv(dev);
1822 unsigned int i;
1823 __u32 *iscpb;
1824
1825 if(smctr_debug > 10)
1826 printk(KERN_DEBUG "%s: smctr_init_shared_memory\n", dev->name);
1827
1828 smctr_set_page(dev, (__u8 *)(unsigned int)tp->iscpb_ptr);
1829
1830 /* Initialize Initial System Configuration Point. (ISCP) */
1831 iscpb = (__u32 *)PAGE_POINTER(&tp->iscpb_ptr->trc_scgb_ptr);
1832 *iscpb = (__u32)(SWAP_WORDS(TRC_POINTER(tp->scgb_ptr)));
1833
1834 smctr_set_page(dev, (__u8 *)tp->ram_access);
1835
1836 /* Initialize System Configuration Pointers. (SCP) */
1837 tp->scgb_ptr->config = (SCGB_ADDRESS_POINTER_FORMAT
1838 | SCGB_MULTI_WORD_CONTROL | SCGB_DATA_FORMAT
1839 | SCGB_BURST_LENGTH);
1840
1841 tp->scgb_ptr->trc_sclb_ptr = TRC_POINTER(tp->sclb_ptr);
1842 tp->scgb_ptr->trc_acb_ptr = TRC_POINTER(tp->acb_head);
1843 tp->scgb_ptr->trc_isb_ptr = TRC_POINTER(tp->isb_ptr);
1844 tp->scgb_ptr->isbsiz = (sizeof(ISBlock)) - 2;
1845
1846 /* Initialize System Control Block. (SCB) */
1847 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_NOP;
1848 tp->sclb_ptr->iack_code = 0;
1849 tp->sclb_ptr->resume_control = 0;
1850 tp->sclb_ptr->int_mask_control = 0;
1851 tp->sclb_ptr->int_mask_state = 0;
1852
1853 /* Initialize Interrupt Status Block. (ISB) */
1854 for(i = 0; i < NUM_OF_INTERRUPTS; i++)
1855 {
1856 tp->isb_ptr->IStatus[i].IType = 0xf0;
1857 tp->isb_ptr->IStatus[i].ISubtype = 0;
1858 }
1859
1860 tp->current_isb_index = 0;
1861
1862 /* Initialize Action Command Block. (ACB) */
1863 smctr_init_acbs(dev);
1864
1865 /* Initialize transmit FCB's and BDB's. */
1866 smctr_link_tx_fcbs_to_bdbs(dev);
1867 smctr_init_tx_bdbs(dev);
1868 smctr_init_tx_fcbs(dev);
1869
1870 /* Initialize receive FCB's and BDB's. */
1871 smctr_init_rx_bdbs(dev);
1872 smctr_init_rx_fcbs(dev);
1873
1874 return (0);
1875 }
1876
smctr_init_tx_bdbs(struct net_device * dev)1877 static int smctr_init_tx_bdbs(struct net_device *dev)
1878 {
1879 struct net_local *tp = netdev_priv(dev);
1880 unsigned int i, j;
1881 BDBlock *bdb;
1882
1883 for(i = 0; i < NUM_TX_QS_USED; i++)
1884 {
1885 bdb = tp->tx_bdb_head[i];
1886 bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
1887 bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock));
1888 bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1889
1890 for(j = 1; j < tp->num_tx_bdbs[i]; j++)
1891 {
1892 bdb->next_ptr->back_ptr = bdb;
1893 bdb = bdb->next_ptr;
1894 bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING);
1895 bdb->next_ptr
1896 = (BDBlock *)(((char *)bdb) + sizeof( BDBlock)); bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr);
1897 }
1898
1899 bdb->next_ptr = tp->tx_bdb_head[i];
1900 bdb->trc_next_ptr = TRC_POINTER(tp->tx_bdb_head[i]);
1901 tp->tx_bdb_head[i]->back_ptr = bdb;
1902 }
1903
1904 return (0);
1905 }
1906
smctr_init_tx_fcbs(struct net_device * dev)1907 static int smctr_init_tx_fcbs(struct net_device *dev)
1908 {
1909 struct net_local *tp = netdev_priv(dev);
1910 unsigned int i, j;
1911 FCBlock *fcb;
1912
1913 for(i = 0; i < NUM_TX_QS_USED; i++)
1914 {
1915 fcb = tp->tx_fcb_head[i];
1916 fcb->frame_status = 0;
1917 fcb->frame_length = 0;
1918 fcb->info = FCB_CHAIN_END;
1919 fcb->next_ptr = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
1920 fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1921
1922 for(j = 1; j < tp->num_tx_fcbs[i]; j++)
1923 {
1924 fcb->next_ptr->back_ptr = fcb;
1925 fcb = fcb->next_ptr;
1926 fcb->frame_status = 0;
1927 fcb->frame_length = 0;
1928 fcb->info = FCB_CHAIN_END;
1929 fcb->next_ptr
1930 = (FCBlock *)(((char *)fcb) + sizeof(FCBlock));
1931 fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr);
1932 }
1933
1934 fcb->next_ptr = tp->tx_fcb_head[i];
1935 fcb->trc_next_ptr = TRC_POINTER(tp->tx_fcb_head[i]);
1936
1937 tp->tx_fcb_head[i]->back_ptr = fcb;
1938 tp->tx_fcb_end[i] = tp->tx_fcb_head[i]->next_ptr;
1939 tp->tx_fcb_curr[i] = tp->tx_fcb_head[i]->next_ptr;
1940 tp->num_tx_fcbs_used[i] = 0;
1941 }
1942
1943 return (0);
1944 }
1945
smctr_internal_self_test(struct net_device * dev)1946 static int smctr_internal_self_test(struct net_device *dev)
1947 {
1948 struct net_local *tp = netdev_priv(dev);
1949 int err;
1950
1951 if((err = smctr_issue_test_internal_rom_cmd(dev)))
1952 return (err);
1953
1954 if((err = smctr_wait_cmd(dev)))
1955 return (err);
1956
1957 if(tp->acb_head->cmd_done_status & 0xff)
1958 return (-1);
1959
1960 if((err = smctr_issue_test_hic_cmd(dev)))
1961 return (err);
1962
1963 if((err = smctr_wait_cmd(dev)))
1964 return (err);
1965
1966 if(tp->acb_head->cmd_done_status & 0xff)
1967 return (-1);
1968
1969 if((err = smctr_issue_test_mac_reg_cmd(dev)))
1970 return (err);
1971
1972 if((err = smctr_wait_cmd(dev)))
1973 return (err);
1974
1975 if(tp->acb_head->cmd_done_status & 0xff)
1976 return (-1);
1977
1978 return (0);
1979 }
1980
1981 /*
1982 * The typical workload of the driver: Handle the network interface interrupts.
1983 */
smctr_interrupt(int irq,void * dev_id)1984 static irqreturn_t smctr_interrupt(int irq, void *dev_id)
1985 {
1986 struct net_device *dev = dev_id;
1987 struct net_local *tp;
1988 int ioaddr;
1989 __u16 interrupt_unmask_bits = 0, interrupt_ack_code = 0xff00;
1990 __u16 err1, err = NOT_MY_INTERRUPT;
1991 __u8 isb_type, isb_subtype;
1992 __u16 isb_index;
1993
1994 ioaddr = dev->base_addr;
1995 tp = netdev_priv(dev);
1996
1997 if(tp->status == NOT_INITIALIZED)
1998 return IRQ_NONE;
1999
2000 spin_lock(&tp->lock);
2001
2002 smctr_disable_bic_int(dev);
2003 smctr_enable_16bit(dev);
2004
2005 smctr_clear_int(dev);
2006
2007 /* First read the LSB */
2008 while((tp->isb_ptr->IStatus[tp->current_isb_index].IType & 0xf0) == 0)
2009 {
2010 isb_index = tp->current_isb_index;
2011 isb_type = tp->isb_ptr->IStatus[isb_index].IType;
2012 isb_subtype = tp->isb_ptr->IStatus[isb_index].ISubtype;
2013
2014 (tp->current_isb_index)++;
2015 if(tp->current_isb_index == NUM_OF_INTERRUPTS)
2016 tp->current_isb_index = 0;
2017
2018 if(isb_type >= 0x10)
2019 {
2020 smctr_disable_16bit(dev);
2021 spin_unlock(&tp->lock);
2022 return IRQ_HANDLED;
2023 }
2024
2025 err = HARDWARE_FAILED;
2026 interrupt_ack_code = isb_index;
2027 tp->isb_ptr->IStatus[isb_index].IType |= 0xf0;
2028
2029 interrupt_unmask_bits |= (1 << (__u16)isb_type);
2030
2031 switch(isb_type)
2032 {
2033 case ISB_IMC_MAC_TYPE_3:
2034 smctr_disable_16bit(dev);
2035
2036 switch(isb_subtype)
2037 {
2038 case 0:
2039 tp->monitor_state = MS_MONITOR_FSM_INACTIVE;
2040 break;
2041
2042 case 1:
2043 tp->monitor_state = MS_REPEAT_BEACON_STATE;
2044 break;
2045
2046 case 2:
2047 tp->monitor_state = MS_REPEAT_CLAIM_TOKEN_STATE;
2048 break;
2049
2050 case 3:
2051 tp->monitor_state = MS_TRANSMIT_CLAIM_TOKEN_STATE; break;
2052
2053 case 4:
2054 tp->monitor_state = MS_STANDBY_MONITOR_STATE;
2055 break;
2056
2057 case 5:
2058 tp->monitor_state = MS_TRANSMIT_BEACON_STATE;
2059 break;
2060
2061 case 6:
2062 tp->monitor_state = MS_ACTIVE_MONITOR_STATE;
2063 break;
2064
2065 case 7:
2066 tp->monitor_state = MS_TRANSMIT_RING_PURGE_STATE;
2067 break;
2068
2069 case 8: /* diagnostic state */
2070 break;
2071
2072 case 9:
2073 tp->monitor_state = MS_BEACON_TEST_STATE;
2074 if(smctr_lobe_media_test(dev))
2075 {
2076 tp->ring_status_flags = RING_STATUS_CHANGED;
2077 tp->ring_status = AUTO_REMOVAL_ERROR;
2078 smctr_ring_status_chg(dev);
2079 smctr_bypass_state(dev);
2080 }
2081 else
2082 smctr_issue_insert_cmd(dev);
2083 break;
2084
2085 /* case 0x0a-0xff, illegal states */
2086 default:
2087 break;
2088 }
2089
2090 tp->ring_status_flags = MONITOR_STATE_CHANGED;
2091 err = smctr_ring_status_chg(dev);
2092
2093 smctr_enable_16bit(dev);
2094 break;
2095
2096 /* Type 0x02 - MAC Error Counters Interrupt
2097 * One or more MAC Error Counter is half full
2098 * MAC Error Counters
2099 * Lost_FR_Error_Counter
2100 * RCV_Congestion_Counter
2101 * FR_copied_Error_Counter
2102 * FREQ_Error_Counter
2103 * Token_Error_Counter
2104 * Line_Error_Counter
2105 * Internal_Error_Count
2106 */
2107 case ISB_IMC_MAC_ERROR_COUNTERS:
2108 /* Read 802.5 Error Counters */
2109 err = smctr_issue_read_ring_status_cmd(dev);
2110 break;
2111
2112 /* Type 0x04 - MAC Type 2 Interrupt
2113 * HOST needs to enqueue MAC Frame for transmission
2114 * SubType Bit 15 - RQ_INIT_PDU( Request Initialization) * Changed from RQ_INIT_PDU to
2115 * TRC_Status_Changed_Indicate
2116 */
2117 case ISB_IMC_MAC_TYPE_2:
2118 err = smctr_issue_read_ring_status_cmd(dev);
2119 break;
2120
2121
2122 /* Type 0x05 - TX Frame Interrupt (FI). */
2123 case ISB_IMC_TX_FRAME:
2124 /* BUG QUEUE for TRC stuck receive BUG */
2125 if(isb_subtype & TX_PENDING_PRIORITY_2)
2126 {
2127 if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS)
2128 break;
2129 }
2130
2131 /* NON-MAC frames only */
2132 if(isb_subtype & TX_PENDING_PRIORITY_1)
2133 {
2134 if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS)
2135 break;
2136 }
2137
2138 /* MAC frames only */
2139 if(isb_subtype & TX_PENDING_PRIORITY_0)
2140 err = smctr_tx_complete(dev, MAC_QUEUE); break;
2141
2142 /* Type 0x06 - TX END OF QUEUE (FE) */
2143 case ISB_IMC_END_OF_TX_QUEUE:
2144 /* BUG queue */
2145 if(isb_subtype & TX_PENDING_PRIORITY_2)
2146 {
2147 /* ok to clear Receive FIFO overrun
2148 * imask send_BUG now completes.
2149 */
2150 interrupt_unmask_bits |= 0x800;
2151
2152 tp->tx_queue_status[BUG_QUEUE] = NOT_TRANSMITING;
2153 if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS)
2154 break;
2155 if((err = smctr_restart_tx_chain(dev, BUG_QUEUE)) != SUCCESS)
2156 break;
2157 }
2158
2159 /* NON-MAC queue only */
2160 if(isb_subtype & TX_PENDING_PRIORITY_1)
2161 {
2162 tp->tx_queue_status[NON_MAC_QUEUE] = NOT_TRANSMITING;
2163 if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS)
2164 break;
2165 if((err = smctr_restart_tx_chain(dev, NON_MAC_QUEUE)) != SUCCESS)
2166 break;
2167 }
2168
2169 /* MAC queue only */
2170 if(isb_subtype & TX_PENDING_PRIORITY_0)
2171 {
2172 tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
2173 if((err = smctr_tx_complete(dev, MAC_QUEUE)) != SUCCESS)
2174 break;
2175
2176 err = smctr_restart_tx_chain(dev, MAC_QUEUE);
2177 }
2178 break;
2179
2180 /* Type 0x07 - NON-MAC RX Resource Interrupt
2181 * Subtype bit 12 - (BW) BDB warning
2182 * Subtype bit 13 - (FW) FCB warning
2183 * Subtype bit 14 - (BE) BDB End of chain
2184 * Subtype bit 15 - (FE) FCB End of chain
2185 */
2186 case ISB_IMC_NON_MAC_RX_RESOURCE:
2187 tp->rx_fifo_overrun_count = 0;
2188 tp->receive_queue_number = NON_MAC_QUEUE;
2189 err1 = smctr_rx_frame(dev);
2190
2191 if(isb_subtype & NON_MAC_RX_RESOURCE_FE)
2192 {
2193 if((err = smctr_issue_resume_rx_fcb_cmd( dev, NON_MAC_QUEUE)) != SUCCESS) break;
2194
2195 if(tp->ptr_rx_fcb_overruns)
2196 (*tp->ptr_rx_fcb_overruns)++;
2197 }
2198
2199 if(isb_subtype & NON_MAC_RX_RESOURCE_BE)
2200 {
2201 if((err = smctr_issue_resume_rx_bdb_cmd( dev, NON_MAC_QUEUE)) != SUCCESS) break;
2202
2203 if(tp->ptr_rx_bdb_overruns)
2204 (*tp->ptr_rx_bdb_overruns)++;
2205 }
2206 err = err1;
2207 break;
2208
2209 /* Type 0x08 - MAC RX Resource Interrupt
2210 * Subtype bit 12 - (BW) BDB warning
2211 * Subtype bit 13 - (FW) FCB warning
2212 * Subtype bit 14 - (BE) BDB End of chain
2213 * Subtype bit 15 - (FE) FCB End of chain
2214 */
2215 case ISB_IMC_MAC_RX_RESOURCE:
2216 tp->receive_queue_number = MAC_QUEUE;
2217 err1 = smctr_rx_frame(dev);
2218
2219 if(isb_subtype & MAC_RX_RESOURCE_FE)
2220 {
2221 if((err = smctr_issue_resume_rx_fcb_cmd( dev, MAC_QUEUE)) != SUCCESS)
2222 break;
2223
2224 if(tp->ptr_rx_fcb_overruns)
2225 (*tp->ptr_rx_fcb_overruns)++;
2226 }
2227
2228 if(isb_subtype & MAC_RX_RESOURCE_BE)
2229 {
2230 if((err = smctr_issue_resume_rx_bdb_cmd( dev, MAC_QUEUE)) != SUCCESS)
2231 break;
2232
2233 if(tp->ptr_rx_bdb_overruns)
2234 (*tp->ptr_rx_bdb_overruns)++;
2235 }
2236 err = err1;
2237 break;
2238
2239 /* Type 0x09 - NON_MAC RX Frame Interrupt */
2240 case ISB_IMC_NON_MAC_RX_FRAME:
2241 tp->rx_fifo_overrun_count = 0;
2242 tp->receive_queue_number = NON_MAC_QUEUE;
2243 err = smctr_rx_frame(dev);
2244 break;
2245
2246 /* Type 0x0A - MAC RX Frame Interrupt */
2247 case ISB_IMC_MAC_RX_FRAME:
2248 tp->receive_queue_number = MAC_QUEUE;
2249 err = smctr_rx_frame(dev);
2250 break;
2251
2252 /* Type 0x0B - TRC status
2253 * TRC has encountered an error condition
2254 * subtype bit 14 - transmit FIFO underrun
2255 * subtype bit 15 - receive FIFO overrun
2256 */
2257 case ISB_IMC_TRC_FIFO_STATUS:
2258 if(isb_subtype & TRC_FIFO_STATUS_TX_UNDERRUN)
2259 {
2260 if(tp->ptr_tx_fifo_underruns)
2261 (*tp->ptr_tx_fifo_underruns)++;
2262 }
2263
2264 if(isb_subtype & TRC_FIFO_STATUS_RX_OVERRUN)
2265 {
2266 /* update overrun stuck receive counter
2267 * if >= 3, has to clear it by sending
2268 * back to back frames. We pick
2269 * DAT(duplicate address MAC frame)
2270 */
2271 tp->rx_fifo_overrun_count++;
2272
2273 if(tp->rx_fifo_overrun_count >= 3)
2274 {
2275 tp->rx_fifo_overrun_count = 0;
2276
2277 /* delay clearing fifo overrun
2278 * imask till send_BUG tx
2279 * complete posted
2280 */
2281 interrupt_unmask_bits &= (~0x800);
2282 printk(KERN_CRIT "Jay please send bug\n");// smctr_send_bug(dev);
2283 }
2284
2285 if(tp->ptr_rx_fifo_overruns)
2286 (*tp->ptr_rx_fifo_overruns)++;
2287 }
2288
2289 err = SUCCESS;
2290 break;
2291
2292 /* Type 0x0C - Action Command Status Interrupt
2293 * Subtype bit 14 - CB end of command chain (CE)
2294 * Subtype bit 15 - CB command interrupt (CI)
2295 */
2296 case ISB_IMC_COMMAND_STATUS:
2297 err = SUCCESS;
2298 if(tp->acb_head->cmd == ACB_CMD_HIC_NOP)
2299 {
2300 printk(KERN_ERR "i1\n");
2301 smctr_disable_16bit(dev);
2302
2303 /* XXXXXXXXXXXXXXXXX */
2304 /* err = UM_Interrupt(dev); */
2305
2306 smctr_enable_16bit(dev);
2307 }
2308 else
2309 {
2310 if((tp->acb_head->cmd
2311 == ACB_CMD_READ_TRC_STATUS)
2312 && (tp->acb_head->subcmd
2313 == RW_TRC_STATUS_BLOCK))
2314 {
2315 if(tp->ptr_bcn_type)
2316 {
2317 *(tp->ptr_bcn_type)
2318 = (__u32)((SBlock *)tp->misc_command_data)->BCN_Type;
2319 }
2320
2321 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & ERROR_COUNTERS_CHANGED)
2322 {
2323 smctr_update_err_stats(dev);
2324 }
2325
2326 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & TI_NDIS_RING_STATUS_CHANGED)
2327 {
2328 tp->ring_status
2329 = ((SBlock*)tp->misc_command_data)->TI_NDIS_Ring_Status;
2330 smctr_disable_16bit(dev);
2331 err = smctr_ring_status_chg(dev);
2332 smctr_enable_16bit(dev);
2333 if((tp->ring_status & REMOVE_RECEIVED)
2334 && (tp->config_word0 & NO_AUTOREMOVE))
2335 {
2336 smctr_issue_remove_cmd(dev);
2337 }
2338
2339 if(err != SUCCESS)
2340 {
2341 tp->acb_pending = 0;
2342 break;
2343 }
2344 }
2345
2346 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & UNA_CHANGED)
2347 {
2348 if(tp->ptr_una)
2349 {
2350 tp->ptr_una[0] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[0]);
2351 tp->ptr_una[1] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[1]);
2352 tp->ptr_una[2] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[2]);
2353 }
2354
2355 }
2356
2357 if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & READY_TO_SEND_RQ_INIT) {
2358 err = smctr_send_rq_init(dev);
2359 }
2360 }
2361 }
2362
2363 tp->acb_pending = 0;
2364 break;
2365
2366 /* Type 0x0D - MAC Type 1 interrupt
2367 * Subtype -- 00 FR_BCN received at S12
2368 * 01 FR_BCN received at S21
2369 * 02 FR_DAT(DA=MA, A<>0) received at S21
2370 * 03 TSM_EXP at S21
2371 * 04 FR_REMOVE received at S42
2372 * 05 TBR_EXP, BR_FLAG_SET at S42
2373 * 06 TBT_EXP at S53
2374 */
2375 case ISB_IMC_MAC_TYPE_1:
2376 if(isb_subtype > 8)
2377 {
2378 err = HARDWARE_FAILED;
2379 break;
2380 }
2381
2382 err = SUCCESS;
2383 switch(isb_subtype)
2384 {
2385 case 0:
2386 tp->join_state = JS_BYPASS_STATE;
2387 if(tp->status != CLOSED)
2388 {
2389 tp->status = CLOSED;
2390 err = smctr_status_chg(dev);
2391 }
2392 break;
2393
2394 case 1:
2395 tp->join_state = JS_LOBE_TEST_STATE;
2396 break;
2397
2398 case 2:
2399 tp->join_state = JS_DETECT_MONITOR_PRESENT_STATE;
2400 break;
2401
2402 case 3:
2403 tp->join_state = JS_AWAIT_NEW_MONITOR_STATE;
2404 break;
2405
2406 case 4:
2407 tp->join_state = JS_DUPLICATE_ADDRESS_TEST_STATE;
2408 break;
2409
2410 case 5:
2411 tp->join_state = JS_NEIGHBOR_NOTIFICATION_STATE;
2412 break;
2413
2414 case 6:
2415 tp->join_state = JS_REQUEST_INITIALIZATION_STATE;
2416 break;
2417
2418 case 7:
2419 tp->join_state = JS_JOIN_COMPLETE_STATE;
2420 tp->status = OPEN;
2421 err = smctr_status_chg(dev);
2422 break;
2423
2424 case 8:
2425 tp->join_state = JS_BYPASS_WAIT_STATE;
2426 break;
2427 }
2428 break ;
2429
2430 /* Type 0x0E - TRC Initialization Sequence Interrupt
2431 * Subtype -- 00-FF Initializatin sequence complete
2432 */
2433 case ISB_IMC_TRC_INTRNL_TST_STATUS:
2434 tp->status = INITIALIZED;
2435 smctr_disable_16bit(dev);
2436 err = smctr_status_chg(dev);
2437 smctr_enable_16bit(dev);
2438 break;
2439
2440 /* other interrupt types, illegal */
2441 default:
2442 break;
2443 }
2444
2445 if(err != SUCCESS)
2446 break;
2447 }
2448
2449 /* Checking the ack code instead of the unmask bits here is because :
2450 * while fixing the stuck receive, DAT frame are sent and mask off
2451 * FIFO overrun interrupt temporarily (interrupt_unmask_bits = 0)
2452 * but we still want to issue ack to ISB
2453 */
2454 if(!(interrupt_ack_code & 0xff00))
2455 smctr_issue_int_ack(dev, interrupt_ack_code, interrupt_unmask_bits);
2456
2457 smctr_disable_16bit(dev);
2458 smctr_enable_bic_int(dev);
2459 spin_unlock(&tp->lock);
2460
2461 return IRQ_HANDLED;
2462 }
2463
smctr_issue_enable_int_cmd(struct net_device * dev,__u16 interrupt_enable_mask)2464 static int smctr_issue_enable_int_cmd(struct net_device *dev,
2465 __u16 interrupt_enable_mask)
2466 {
2467 struct net_local *tp = netdev_priv(dev);
2468 int err;
2469
2470 if((err = smctr_wait_while_cbusy(dev)))
2471 return (err);
2472
2473 tp->sclb_ptr->int_mask_control = interrupt_enable_mask;
2474 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK;
2475
2476 smctr_set_ctrl_attention(dev);
2477
2478 return (0);
2479 }
2480
smctr_issue_int_ack(struct net_device * dev,__u16 iack_code,__u16 ibits)2481 static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code, __u16 ibits)
2482 {
2483 struct net_local *tp = netdev_priv(dev);
2484
2485 if(smctr_wait_while_cbusy(dev))
2486 return (-1);
2487
2488 tp->sclb_ptr->int_mask_control = ibits;
2489 tp->sclb_ptr->iack_code = iack_code << 1; /* use the offset from base */ tp->sclb_ptr->resume_control = 0;
2490 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_IACK_CODE_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK;
2491
2492 smctr_set_ctrl_attention(dev);
2493
2494 return (0);
2495 }
2496
smctr_issue_init_timers_cmd(struct net_device * dev)2497 static int smctr_issue_init_timers_cmd(struct net_device *dev)
2498 {
2499 struct net_local *tp = netdev_priv(dev);
2500 unsigned int i;
2501 int err;
2502 __u16 *pTimer_Struc = (__u16 *)tp->misc_command_data;
2503
2504 if((err = smctr_wait_while_cbusy(dev)))
2505 return (err);
2506
2507 if((err = smctr_wait_cmd(dev)))
2508 return (err);
2509
2510 tp->config_word0 = THDREN | DMA_TRIGGER | USETPT | NO_AUTOREMOVE;
2511 tp->config_word1 = 0;
2512
2513 if((tp->media_type == MEDIA_STP_16)
2514 || (tp->media_type == MEDIA_UTP_16)
2515 || (tp->media_type == MEDIA_STP_16_UTP_16))
2516 {
2517 tp->config_word0 |= FREQ_16MB_BIT;
2518 }
2519
2520 if(tp->mode_bits & EARLY_TOKEN_REL)
2521 tp->config_word0 |= ETREN;
2522
2523 if(tp->mode_bits & LOOPING_MODE_MASK)
2524 tp->config_word0 |= RX_OWN_BIT;
2525 else
2526 tp->config_word0 &= ~RX_OWN_BIT;
2527
2528 if(tp->receive_mask & PROMISCUOUS_MODE)
2529 tp->config_word0 |= PROMISCUOUS_BIT;
2530 else
2531 tp->config_word0 &= ~PROMISCUOUS_BIT;
2532
2533 if(tp->receive_mask & ACCEPT_ERR_PACKETS)
2534 tp->config_word0 |= SAVBAD_BIT;
2535 else
2536 tp->config_word0 &= ~SAVBAD_BIT;
2537
2538 if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
2539 tp->config_word0 |= RXATMAC;
2540 else
2541 tp->config_word0 &= ~RXATMAC;
2542
2543 if(tp->receive_mask & ACCEPT_MULTI_PROM)
2544 tp->config_word1 |= MULTICAST_ADDRESS_BIT;
2545 else
2546 tp->config_word1 &= ~MULTICAST_ADDRESS_BIT;
2547
2548 if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING)
2549 tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS;
2550 else
2551 {
2552 if(tp->receive_mask & ACCEPT_SOURCE_ROUTING)
2553 tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT;
2554 else
2555 tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS;
2556 }
2557
2558 if((tp->media_type == MEDIA_STP_16)
2559 || (tp->media_type == MEDIA_UTP_16)
2560 || (tp->media_type == MEDIA_STP_16_UTP_16))
2561 {
2562 tp->config_word1 |= INTERFRAME_SPACING_16;
2563 }
2564 else
2565 tp->config_word1 |= INTERFRAME_SPACING_4;
2566
2567 *pTimer_Struc++ = tp->config_word0;
2568 *pTimer_Struc++ = tp->config_word1;
2569
2570 if((tp->media_type == MEDIA_STP_4)
2571 || (tp->media_type == MEDIA_UTP_4)
2572 || (tp->media_type == MEDIA_STP_4_UTP_4))
2573 {
2574 *pTimer_Struc++ = 0x00FA; /* prescale */
2575 *pTimer_Struc++ = 0x2710; /* TPT_limit */
2576 *pTimer_Struc++ = 0x2710; /* TQP_limit */
2577 *pTimer_Struc++ = 0x0A28; /* TNT_limit */
2578 *pTimer_Struc++ = 0x3E80; /* TBT_limit */
2579 *pTimer_Struc++ = 0x3A98; /* TSM_limit */
2580 *pTimer_Struc++ = 0x1B58; /* TAM_limit */
2581 *pTimer_Struc++ = 0x00C8; /* TBR_limit */
2582 *pTimer_Struc++ = 0x07D0; /* TER_limit */
2583 *pTimer_Struc++ = 0x000A; /* TGT_limit */
2584 *pTimer_Struc++ = 0x1162; /* THT_limit */
2585 *pTimer_Struc++ = 0x07D0; /* TRR_limit */
2586 *pTimer_Struc++ = 0x1388; /* TVX_limit */
2587 *pTimer_Struc++ = 0x0000; /* reserved */
2588 }
2589 else
2590 {
2591 *pTimer_Struc++ = 0x03E8; /* prescale */
2592 *pTimer_Struc++ = 0x9C40; /* TPT_limit */
2593 *pTimer_Struc++ = 0x9C40; /* TQP_limit */
2594 *pTimer_Struc++ = 0x0A28; /* TNT_limit */
2595 *pTimer_Struc++ = 0x3E80; /* TBT_limit */
2596 *pTimer_Struc++ = 0x3A98; /* TSM_limit */
2597 *pTimer_Struc++ = 0x1B58; /* TAM_limit */
2598 *pTimer_Struc++ = 0x00C8; /* TBR_limit */
2599 *pTimer_Struc++ = 0x07D0; /* TER_limit */
2600 *pTimer_Struc++ = 0x000A; /* TGT_limit */
2601 *pTimer_Struc++ = 0x4588; /* THT_limit */
2602 *pTimer_Struc++ = 0x1F40; /* TRR_limit */
2603 *pTimer_Struc++ = 0x4E20; /* TVX_limit */
2604 *pTimer_Struc++ = 0x0000; /* reserved */
2605 }
2606
2607 /* Set node address. */
2608 *pTimer_Struc++ = dev->dev_addr[0] << 8
2609 | (dev->dev_addr[1] & 0xFF);
2610 *pTimer_Struc++ = dev->dev_addr[2] << 8
2611 | (dev->dev_addr[3] & 0xFF);
2612 *pTimer_Struc++ = dev->dev_addr[4] << 8
2613 | (dev->dev_addr[5] & 0xFF);
2614
2615 /* Set group address. */
2616 *pTimer_Struc++ = tp->group_address_0 << 8
2617 | tp->group_address_0 >> 8;
2618 *pTimer_Struc++ = tp->group_address[0] << 8
2619 | tp->group_address[0] >> 8;
2620 *pTimer_Struc++ = tp->group_address[1] << 8
2621 | tp->group_address[1] >> 8;
2622
2623 /* Set functional address. */
2624 *pTimer_Struc++ = tp->functional_address_0 << 8
2625 | tp->functional_address_0 >> 8;
2626 *pTimer_Struc++ = tp->functional_address[0] << 8
2627 | tp->functional_address[0] >> 8;
2628 *pTimer_Struc++ = tp->functional_address[1] << 8
2629 | tp->functional_address[1] >> 8;
2630
2631 /* Set Bit-Wise group address. */
2632 *pTimer_Struc++ = tp->bitwise_group_address[0] << 8
2633 | tp->bitwise_group_address[0] >> 8;
2634 *pTimer_Struc++ = tp->bitwise_group_address[1] << 8
2635 | tp->bitwise_group_address[1] >> 8;
2636
2637 /* Set ring number address. */
2638 *pTimer_Struc++ = tp->source_ring_number;
2639 *pTimer_Struc++ = tp->target_ring_number;
2640
2641 /* Physical drop number. */
2642 *pTimer_Struc++ = (unsigned short)0;
2643 *pTimer_Struc++ = (unsigned short)0;
2644
2645 /* Product instance ID. */
2646 for(i = 0; i < 9; i++)
2647 *pTimer_Struc++ = (unsigned short)0;
2648
2649 err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TRC_TIMERS, 0);
2650
2651 return (err);
2652 }
2653
smctr_issue_init_txrx_cmd(struct net_device * dev)2654 static int smctr_issue_init_txrx_cmd(struct net_device *dev)
2655 {
2656 struct net_local *tp = netdev_priv(dev);
2657 unsigned int i;
2658 int err;
2659 void **txrx_ptrs = (void *)tp->misc_command_data;
2660
2661 if((err = smctr_wait_while_cbusy(dev)))
2662 return (err);
2663
2664 if((err = smctr_wait_cmd(dev)))
2665 {
2666 printk(KERN_ERR "%s: Hardware failure\n", dev->name);
2667 return (err);
2668 }
2669
2670 /* Initialize Transmit Queue Pointers that are used, to point to
2671 * a single FCB.
2672 */
2673 for(i = 0; i < NUM_TX_QS_USED; i++)
2674 *txrx_ptrs++ = (void *)TRC_POINTER(tp->tx_fcb_head[i]);
2675
2676 /* Initialize Transmit Queue Pointers that are NOT used to ZERO. */
2677 for(; i < MAX_TX_QS; i++)
2678 *txrx_ptrs++ = (void *)0;
2679
2680 /* Initialize Receive Queue Pointers (MAC and Non-MAC) that are
2681 * used, to point to a single FCB and a BDB chain of buffers.
2682 */
2683 for(i = 0; i < NUM_RX_QS_USED; i++)
2684 {
2685 *txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_fcb_head[i]);
2686 *txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_bdb_head[i]);
2687 }
2688
2689 /* Initialize Receive Queue Pointers that are NOT used to ZERO. */
2690 for(; i < MAX_RX_QS; i++)
2691 {
2692 *txrx_ptrs++ = (void *)0;
2693 *txrx_ptrs++ = (void *)0;
2694 }
2695
2696 err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TX_RX, 0);
2697
2698 return (err);
2699 }
2700
smctr_issue_insert_cmd(struct net_device * dev)2701 static int smctr_issue_insert_cmd(struct net_device *dev)
2702 {
2703 int err;
2704
2705 err = smctr_setup_single_cmd(dev, ACB_CMD_INSERT, ACB_SUB_CMD_NOP);
2706
2707 return (err);
2708 }
2709
smctr_issue_read_ring_status_cmd(struct net_device * dev)2710 static int smctr_issue_read_ring_status_cmd(struct net_device *dev)
2711 {
2712 int err;
2713
2714 if((err = smctr_wait_while_cbusy(dev)))
2715 return (err);
2716
2717 if((err = smctr_wait_cmd(dev)))
2718 return (err);
2719
2720 err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_READ_TRC_STATUS,
2721 RW_TRC_STATUS_BLOCK);
2722
2723 return (err);
2724 }
2725
smctr_issue_read_word_cmd(struct net_device * dev,__u16 aword_cnt)2726 static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt)
2727 {
2728 int err;
2729
2730 if((err = smctr_wait_while_cbusy(dev)))
2731 return (err);
2732
2733 if((err = smctr_wait_cmd(dev)))
2734 return (err);
2735
2736 err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_READ_VALUE,
2737 aword_cnt);
2738
2739 return (err);
2740 }
2741
smctr_issue_remove_cmd(struct net_device * dev)2742 static int smctr_issue_remove_cmd(struct net_device *dev)
2743 {
2744 struct net_local *tp = netdev_priv(dev);
2745 int err;
2746
2747 if((err = smctr_wait_while_cbusy(dev)))
2748 return (err);
2749
2750 tp->sclb_ptr->resume_control = 0;
2751 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_REMOVE;
2752
2753 smctr_set_ctrl_attention(dev);
2754
2755 return (0);
2756 }
2757
smctr_issue_resume_acb_cmd(struct net_device * dev)2758 static int smctr_issue_resume_acb_cmd(struct net_device *dev)
2759 {
2760 struct net_local *tp = netdev_priv(dev);
2761 int err;
2762
2763 if((err = smctr_wait_while_cbusy(dev)))
2764 return (err);
2765
2766 tp->sclb_ptr->resume_control = SCLB_RC_ACB;
2767 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
2768
2769 tp->acb_pending = 1;
2770
2771 smctr_set_ctrl_attention(dev);
2772
2773 return (0);
2774 }
2775
smctr_issue_resume_rx_bdb_cmd(struct net_device * dev,__u16 queue)2776 static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue)
2777 {
2778 struct net_local *tp = netdev_priv(dev);
2779 int err;
2780
2781 if((err = smctr_wait_while_cbusy(dev)))
2782 return (err);
2783
2784 if(queue == MAC_QUEUE)
2785 tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_BDB;
2786 else
2787 tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_BDB;
2788
2789 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
2790
2791 smctr_set_ctrl_attention(dev);
2792
2793 return (0);
2794 }
2795
smctr_issue_resume_rx_fcb_cmd(struct net_device * dev,__u16 queue)2796 static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue)
2797 {
2798 struct net_local *tp = netdev_priv(dev);
2799
2800 if(smctr_debug > 10)
2801 printk(KERN_DEBUG "%s: smctr_issue_resume_rx_fcb_cmd\n", dev->name);
2802
2803 if(smctr_wait_while_cbusy(dev))
2804 return (-1);
2805
2806 if(queue == MAC_QUEUE)
2807 tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_FCB;
2808 else
2809 tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_FCB;
2810
2811 tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID;
2812
2813 smctr_set_ctrl_attention(dev);
2814
2815 return (0);
2816 }
2817
smctr_issue_resume_tx_fcb_cmd(struct net_device * dev,__u16 queue)2818 static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue)
2819 {
2820 struct net_local *tp = netdev_priv(dev);
2821
2822 if(smctr_debug > 10)
2823 printk(KERN_DEBUG "%s: smctr_issue_resume_tx_fcb_cmd\n", dev->name);
2824
2825 if(smctr_wait_while_cbusy(dev))
2826 return (-1);
2827
2828 tp->sclb_ptr->resume_control = (SCLB_RC_TFCB0 << queue);
2829 tp->sclb_ptr->valid_command = SCLB_RESUME_CONTROL_VALID | SCLB_VALID;
2830
2831 smctr_set_ctrl_attention(dev);
2832
2833 return (0);
2834 }
2835
smctr_issue_test_internal_rom_cmd(struct net_device * dev)2836 static int smctr_issue_test_internal_rom_cmd(struct net_device *dev)
2837 {
2838 int err;
2839
2840 err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2841 TRC_INTERNAL_ROM_TEST);
2842
2843 return (err);
2844 }
2845
smctr_issue_test_hic_cmd(struct net_device * dev)2846 static int smctr_issue_test_hic_cmd(struct net_device *dev)
2847 {
2848 int err;
2849
2850 err = smctr_setup_single_cmd(dev, ACB_CMD_HIC_TEST,
2851 TRC_HOST_INTERFACE_REG_TEST);
2852
2853 return (err);
2854 }
2855
smctr_issue_test_mac_reg_cmd(struct net_device * dev)2856 static int smctr_issue_test_mac_reg_cmd(struct net_device *dev)
2857 {
2858 int err;
2859
2860 err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2861 TRC_MAC_REGISTERS_TEST);
2862
2863 return (err);
2864 }
2865
smctr_issue_trc_loopback_cmd(struct net_device * dev)2866 static int smctr_issue_trc_loopback_cmd(struct net_device *dev)
2867 {
2868 int err;
2869
2870 err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2871 TRC_INTERNAL_LOOPBACK);
2872
2873 return (err);
2874 }
2875
smctr_issue_tri_loopback_cmd(struct net_device * dev)2876 static int smctr_issue_tri_loopback_cmd(struct net_device *dev)
2877 {
2878 int err;
2879
2880 err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
2881 TRC_TRI_LOOPBACK);
2882
2883 return (err);
2884 }
2885
smctr_issue_write_byte_cmd(struct net_device * dev,short aword_cnt,void * byte)2886 static int smctr_issue_write_byte_cmd(struct net_device *dev,
2887 short aword_cnt, void *byte)
2888 {
2889 struct net_local *tp = netdev_priv(dev);
2890 unsigned int iword, ibyte;
2891 int err;
2892
2893 if((err = smctr_wait_while_cbusy(dev)))
2894 return (err);
2895
2896 if((err = smctr_wait_cmd(dev)))
2897 return (err);
2898
2899 for(iword = 0, ibyte = 0; iword < (unsigned int)(aword_cnt & 0xff);
2900 iword++, ibyte += 2)
2901 {
2902 tp->misc_command_data[iword] = (*((__u8 *)byte + ibyte) << 8)
2903 | (*((__u8 *)byte + ibyte + 1));
2904 }
2905
2906 return (smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE,
2907 aword_cnt));
2908 }
2909
smctr_issue_write_word_cmd(struct net_device * dev,short aword_cnt,void * word)2910 static int smctr_issue_write_word_cmd(struct net_device *dev,
2911 short aword_cnt, void *word)
2912 {
2913 struct net_local *tp = netdev_priv(dev);
2914 unsigned int i, err;
2915
2916 if((err = smctr_wait_while_cbusy(dev)))
2917 return (err);
2918
2919 if((err = smctr_wait_cmd(dev)))
2920 return (err);
2921
2922 for(i = 0; i < (unsigned int)(aword_cnt & 0xff); i++)
2923 tp->misc_command_data[i] = *((__u16 *)word + i);
2924
2925 err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE,
2926 aword_cnt);
2927
2928 return (err);
2929 }
2930
smctr_join_complete_state(struct net_device * dev)2931 static int smctr_join_complete_state(struct net_device *dev)
2932 {
2933 int err;
2934
2935 err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE,
2936 JS_JOIN_COMPLETE_STATE);
2937
2938 return (err);
2939 }
2940
smctr_link_tx_fcbs_to_bdbs(struct net_device * dev)2941 static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev)
2942 {
2943 struct net_local *tp = netdev_priv(dev);
2944 unsigned int i, j;
2945 FCBlock *fcb;
2946 BDBlock *bdb;
2947
2948 for(i = 0; i < NUM_TX_QS_USED; i++)
2949 {
2950 fcb = tp->tx_fcb_head[i];
2951 bdb = tp->tx_bdb_head[i];
2952
2953 for(j = 0; j < tp->num_tx_fcbs[i]; j++)
2954 {
2955 fcb->bdb_ptr = bdb;
2956 fcb->trc_bdb_ptr = TRC_POINTER(bdb);
2957 fcb = (FCBlock *)((char *)fcb + sizeof(FCBlock));
2958 bdb = (BDBlock *)((char *)bdb + sizeof(BDBlock));
2959 }
2960 }
2961
2962 return (0);
2963 }
2964
smctr_load_firmware(struct net_device * dev)2965 static int smctr_load_firmware(struct net_device *dev)
2966 {
2967 struct net_local *tp = netdev_priv(dev);
2968 const struct firmware *fw;
2969 __u16 i, checksum = 0;
2970 int err = 0;
2971
2972 if(smctr_debug > 10)
2973 printk(KERN_DEBUG "%s: smctr_load_firmware\n", dev->name);
2974
2975 if (request_firmware(&fw, "tr_smctr.bin", &dev->dev)) {
2976 printk(KERN_ERR "%s: firmware not found\n", dev->name);
2977 return (UCODE_NOT_PRESENT);
2978 }
2979
2980 tp->num_of_tx_buffs = 4;
2981 tp->mode_bits |= UMAC;
2982 tp->receive_mask = 0;
2983 tp->max_packet_size = 4177;
2984
2985 /* Can only upload the firmware once per adapter reset. */
2986 if (tp->microcode_version != 0) {
2987 err = (UCODE_PRESENT);
2988 goto out;
2989 }
2990
2991 /* Verify the firmware exists and is there in the right amount. */
2992 if (!fw->data
2993 || (*(fw->data + UCODE_VERSION_OFFSET) < UCODE_VERSION))
2994 {
2995 err = (UCODE_NOT_PRESENT);
2996 goto out;
2997 }
2998
2999 /* UCODE_SIZE is not included in Checksum. */
3000 for(i = 0; i < *((__u16 *)(fw->data + UCODE_SIZE_OFFSET)); i += 2)
3001 checksum += *((__u16 *)(fw->data + 2 + i));
3002 if (checksum) {
3003 err = (UCODE_NOT_PRESENT);
3004 goto out;
3005 }
3006
3007 /* At this point we have a valid firmware image, lets kick it on up. */
3008 smctr_enable_adapter_ram(dev);
3009 smctr_enable_16bit(dev);
3010 smctr_set_page(dev, (__u8 *)tp->ram_access);
3011
3012 if((smctr_checksum_firmware(dev))
3013 || (*(fw->data + UCODE_VERSION_OFFSET)
3014 > tp->microcode_version))
3015 {
3016 smctr_enable_adapter_ctrl_store(dev);
3017
3018 /* Zero out ram space for firmware. */
3019 for(i = 0; i < CS_RAM_SIZE; i += 2)
3020 *((__u16 *)(tp->ram_access + i)) = 0;
3021
3022 smctr_decode_firmware(dev, fw);
3023
3024 tp->microcode_version = *(fw->data + UCODE_VERSION_OFFSET); *((__u16 *)(tp->ram_access + CS_RAM_VERSION_OFFSET))
3025 = (tp->microcode_version << 8);
3026 *((__u16 *)(tp->ram_access + CS_RAM_CHECKSUM_OFFSET))
3027 = ~(tp->microcode_version << 8) + 1;
3028
3029 smctr_disable_adapter_ctrl_store(dev);
3030
3031 if(smctr_checksum_firmware(dev))
3032 err = HARDWARE_FAILED;
3033 }
3034 else
3035 err = UCODE_PRESENT;
3036
3037 smctr_disable_16bit(dev);
3038 out:
3039 release_firmware(fw);
3040 return (err);
3041 }
3042
smctr_load_node_addr(struct net_device * dev)3043 static int smctr_load_node_addr(struct net_device *dev)
3044 {
3045 int ioaddr = dev->base_addr;
3046 unsigned int i;
3047 __u8 r;
3048
3049 for(i = 0; i < 6; i++)
3050 {
3051 r = inb(ioaddr + LAR0 + i);
3052 dev->dev_addr[i] = (char)r;
3053 }
3054 dev->addr_len = 6;
3055
3056 return (0);
3057 }
3058
3059 /* Lobe Media Test.
3060 * During the transmission of the initial 1500 lobe media MAC frames,
3061 * the phase lock loop in the 805 chip may lock, and then un-lock, causing
3062 * the 825 to go into a PURGE state. When performing a PURGE, the MCT
3063 * microcode will not transmit any frames given to it by the host, and
3064 * will consequently cause a timeout.
3065 *
3066 * NOTE 1: If the monitor_state is MS_BEACON_TEST_STATE, all transmit
3067 * queues other than the one used for the lobe_media_test should be
3068 * disabled.!?
3069 *
3070 * NOTE 2: If the monitor_state is MS_BEACON_TEST_STATE and the receive_mask
3071 * has any multi-cast or promiscous bits set, the receive_mask needs to
3072 * be changed to clear the multi-cast or promiscous mode bits, the lobe_test
3073 * run, and then the receive mask set back to its original value if the test
3074 * is successful.
3075 */
smctr_lobe_media_test(struct net_device * dev)3076 static int smctr_lobe_media_test(struct net_device *dev)
3077 {
3078 struct net_local *tp = netdev_priv(dev);
3079 unsigned int i, perror = 0;
3080 unsigned short saved_rcv_mask;
3081
3082 if(smctr_debug > 10)
3083 printk(KERN_DEBUG "%s: smctr_lobe_media_test\n", dev->name);
3084
3085 /* Clear receive mask for lobe test. */
3086 saved_rcv_mask = tp->receive_mask;
3087 tp->receive_mask = 0;
3088
3089 smctr_chg_rx_mask(dev);
3090
3091 /* Setup the lobe media test. */
3092 smctr_lobe_media_test_cmd(dev);
3093 if(smctr_wait_cmd(dev))
3094 {
3095 smctr_reset_adapter(dev);
3096 tp->status = CLOSED;
3097 return (LOBE_MEDIA_TEST_FAILED);
3098 }
3099
3100 /* Tx lobe media test frames. */
3101 for(i = 0; i < 1500; ++i)
3102 {
3103 if(smctr_send_lobe_media_test(dev))
3104 {
3105 if(perror)
3106 {
3107 smctr_reset_adapter(dev);
3108 tp->state = CLOSED;
3109 return (LOBE_MEDIA_TEST_FAILED);
3110 }
3111 else
3112 {
3113 perror = 1;
3114 if(smctr_lobe_media_test_cmd(dev))
3115 {
3116 smctr_reset_adapter(dev);
3117 tp->state = CLOSED;
3118 return (LOBE_MEDIA_TEST_FAILED);
3119 }
3120 }
3121 }
3122 }
3123
3124 if(smctr_send_dat(dev))
3125 {
3126 if(smctr_send_dat(dev))
3127 {
3128 smctr_reset_adapter(dev);
3129 tp->state = CLOSED;
3130 return (LOBE_MEDIA_TEST_FAILED);
3131 }
3132 }
3133
3134 /* Check if any frames received during test. */
3135 if((tp->rx_fcb_curr[MAC_QUEUE]->frame_status)
3136 || (tp->rx_fcb_curr[NON_MAC_QUEUE]->frame_status))
3137 {
3138 smctr_reset_adapter(dev);
3139 tp->state = CLOSED;
3140 return (LOBE_MEDIA_TEST_FAILED);
3141 }
3142
3143 /* Set receive mask to "Promisc" mode. */
3144 tp->receive_mask = saved_rcv_mask;
3145
3146 smctr_chg_rx_mask(dev);
3147
3148 return (0);
3149 }
3150
smctr_lobe_media_test_cmd(struct net_device * dev)3151 static int smctr_lobe_media_test_cmd(struct net_device *dev)
3152 {
3153 struct net_local *tp = netdev_priv(dev);
3154 int err;
3155
3156 if(smctr_debug > 10)
3157 printk(KERN_DEBUG "%s: smctr_lobe_media_test_cmd\n", dev->name);
3158
3159 /* Change to lobe media test state. */
3160 if(tp->monitor_state != MS_BEACON_TEST_STATE)
3161 {
3162 smctr_lobe_media_test_state(dev);
3163 if(smctr_wait_cmd(dev))
3164 {
3165 printk(KERN_ERR "Lobe Failed test state\n");
3166 return (LOBE_MEDIA_TEST_FAILED);
3167 }
3168 }
3169
3170 err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST,
3171 TRC_LOBE_MEDIA_TEST);
3172
3173 return (err);
3174 }
3175
smctr_lobe_media_test_state(struct net_device * dev)3176 static int smctr_lobe_media_test_state(struct net_device *dev)
3177 {
3178 int err;
3179
3180 err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE,
3181 JS_LOBE_TEST_STATE);
3182
3183 return (err);
3184 }
3185
smctr_make_8025_hdr(struct net_device * dev,MAC_HEADER * rmf,MAC_HEADER * tmf,__u16 ac_fc)3186 static int smctr_make_8025_hdr(struct net_device *dev,
3187 MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc)
3188 {
3189 tmf->ac = MSB(ac_fc); /* msb is access control */
3190 tmf->fc = LSB(ac_fc); /* lsb is frame control */
3191
3192 tmf->sa[0] = dev->dev_addr[0];
3193 tmf->sa[1] = dev->dev_addr[1];
3194 tmf->sa[2] = dev->dev_addr[2];
3195 tmf->sa[3] = dev->dev_addr[3];
3196 tmf->sa[4] = dev->dev_addr[4];
3197 tmf->sa[5] = dev->dev_addr[5];
3198
3199 switch(tmf->vc)
3200 {
3201 /* Send RQ_INIT to RPS */
3202 case RQ_INIT:
3203 tmf->da[0] = 0xc0;
3204 tmf->da[1] = 0x00;
3205 tmf->da[2] = 0x00;
3206 tmf->da[3] = 0x00;
3207 tmf->da[4] = 0x00;
3208 tmf->da[5] = 0x02;
3209 break;
3210
3211 /* Send RPT_TX_FORWARD to CRS */
3212 case RPT_TX_FORWARD:
3213 tmf->da[0] = 0xc0;
3214 tmf->da[1] = 0x00;
3215 tmf->da[2] = 0x00;
3216 tmf->da[3] = 0x00;
3217 tmf->da[4] = 0x00;
3218 tmf->da[5] = 0x10;
3219 break;
3220
3221 /* Everything else goes to sender */
3222 default:
3223 tmf->da[0] = rmf->sa[0];
3224 tmf->da[1] = rmf->sa[1];
3225 tmf->da[2] = rmf->sa[2];
3226 tmf->da[3] = rmf->sa[3];
3227 tmf->da[4] = rmf->sa[4];
3228 tmf->da[5] = rmf->sa[5];
3229 break;
3230 }
3231
3232 return (0);
3233 }
3234
smctr_make_access_pri(struct net_device * dev,MAC_SUB_VECTOR * tsv)3235 static int smctr_make_access_pri(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3236 {
3237 struct net_local *tp = netdev_priv(dev);
3238
3239 tsv->svi = AUTHORIZED_ACCESS_PRIORITY;
3240 tsv->svl = S_AUTHORIZED_ACCESS_PRIORITY;
3241
3242 tsv->svv[0] = MSB(tp->authorized_access_priority);
3243 tsv->svv[1] = LSB(tp->authorized_access_priority);
3244
3245 return (0);
3246 }
3247
smctr_make_addr_mod(struct net_device * dev,MAC_SUB_VECTOR * tsv)3248 static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3249 {
3250 tsv->svi = ADDRESS_MODIFER;
3251 tsv->svl = S_ADDRESS_MODIFER;
3252
3253 tsv->svv[0] = 0;
3254 tsv->svv[1] = 0;
3255
3256 return (0);
3257 }
3258
smctr_make_auth_funct_class(struct net_device * dev,MAC_SUB_VECTOR * tsv)3259 static int smctr_make_auth_funct_class(struct net_device *dev,
3260 MAC_SUB_VECTOR *tsv)
3261 {
3262 struct net_local *tp = netdev_priv(dev);
3263
3264 tsv->svi = AUTHORIZED_FUNCTION_CLASS;
3265 tsv->svl = S_AUTHORIZED_FUNCTION_CLASS;
3266
3267 tsv->svv[0] = MSB(tp->authorized_function_classes);
3268 tsv->svv[1] = LSB(tp->authorized_function_classes);
3269
3270 return (0);
3271 }
3272
smctr_make_corr(struct net_device * dev,MAC_SUB_VECTOR * tsv,__u16 correlator)3273 static int smctr_make_corr(struct net_device *dev,
3274 MAC_SUB_VECTOR *tsv, __u16 correlator)
3275 {
3276 tsv->svi = CORRELATOR;
3277 tsv->svl = S_CORRELATOR;
3278
3279 tsv->svv[0] = MSB(correlator);
3280 tsv->svv[1] = LSB(correlator);
3281
3282 return (0);
3283 }
3284
smctr_make_funct_addr(struct net_device * dev,MAC_SUB_VECTOR * tsv)3285 static int smctr_make_funct_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3286 {
3287 struct net_local *tp = netdev_priv(dev);
3288
3289 smctr_get_functional_address(dev);
3290
3291 tsv->svi = FUNCTIONAL_ADDRESS;
3292 tsv->svl = S_FUNCTIONAL_ADDRESS;
3293
3294 tsv->svv[0] = MSB(tp->misc_command_data[0]);
3295 tsv->svv[1] = LSB(tp->misc_command_data[0]);
3296
3297 tsv->svv[2] = MSB(tp->misc_command_data[1]);
3298 tsv->svv[3] = LSB(tp->misc_command_data[1]);
3299
3300 return (0);
3301 }
3302
smctr_make_group_addr(struct net_device * dev,MAC_SUB_VECTOR * tsv)3303 static int smctr_make_group_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3304 {
3305 struct net_local *tp = netdev_priv(dev);
3306
3307 smctr_get_group_address(dev);
3308
3309 tsv->svi = GROUP_ADDRESS;
3310 tsv->svl = S_GROUP_ADDRESS;
3311
3312 tsv->svv[0] = MSB(tp->misc_command_data[0]);
3313 tsv->svv[1] = LSB(tp->misc_command_data[0]);
3314
3315 tsv->svv[2] = MSB(tp->misc_command_data[1]);
3316 tsv->svv[3] = LSB(tp->misc_command_data[1]);
3317
3318 /* Set Group Address Sub-vector to all zeros if only the
3319 * Group Address/Functional Address Indicator is set.
3320 */
3321 if(tsv->svv[0] == 0x80 && tsv->svv[1] == 0x00
3322 && tsv->svv[2] == 0x00 && tsv->svv[3] == 0x00)
3323 tsv->svv[0] = 0x00;
3324
3325 return (0);
3326 }
3327
smctr_make_phy_drop_num(struct net_device * dev,MAC_SUB_VECTOR * tsv)3328 static int smctr_make_phy_drop_num(struct net_device *dev,
3329 MAC_SUB_VECTOR *tsv)
3330 {
3331 struct net_local *tp = netdev_priv(dev);
3332
3333 smctr_get_physical_drop_number(dev);
3334
3335 tsv->svi = PHYSICAL_DROP;
3336 tsv->svl = S_PHYSICAL_DROP;
3337
3338 tsv->svv[0] = MSB(tp->misc_command_data[0]);
3339 tsv->svv[1] = LSB(tp->misc_command_data[0]);
3340
3341 tsv->svv[2] = MSB(tp->misc_command_data[1]);
3342 tsv->svv[3] = LSB(tp->misc_command_data[1]);
3343
3344 return (0);
3345 }
3346
smctr_make_product_id(struct net_device * dev,MAC_SUB_VECTOR * tsv)3347 static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3348 {
3349 int i;
3350
3351 tsv->svi = PRODUCT_INSTANCE_ID;
3352 tsv->svl = S_PRODUCT_INSTANCE_ID;
3353
3354 for(i = 0; i < 18; i++)
3355 tsv->svv[i] = 0xF0;
3356
3357 return (0);
3358 }
3359
smctr_make_station_id(struct net_device * dev,MAC_SUB_VECTOR * tsv)3360 static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3361 {
3362 struct net_local *tp = netdev_priv(dev);
3363
3364 smctr_get_station_id(dev);
3365
3366 tsv->svi = STATION_IDENTIFER;
3367 tsv->svl = S_STATION_IDENTIFER;
3368
3369 tsv->svv[0] = MSB(tp->misc_command_data[0]);
3370 tsv->svv[1] = LSB(tp->misc_command_data[0]);
3371
3372 tsv->svv[2] = MSB(tp->misc_command_data[1]);
3373 tsv->svv[3] = LSB(tp->misc_command_data[1]);
3374
3375 tsv->svv[4] = MSB(tp->misc_command_data[2]);
3376 tsv->svv[5] = LSB(tp->misc_command_data[2]);
3377
3378 return (0);
3379 }
3380
smctr_make_ring_station_status(struct net_device * dev,MAC_SUB_VECTOR * tsv)3381 static int smctr_make_ring_station_status(struct net_device *dev,
3382 MAC_SUB_VECTOR * tsv)
3383 {
3384 tsv->svi = RING_STATION_STATUS;
3385 tsv->svl = S_RING_STATION_STATUS;
3386
3387 tsv->svv[0] = 0;
3388 tsv->svv[1] = 0;
3389 tsv->svv[2] = 0;
3390 tsv->svv[3] = 0;
3391 tsv->svv[4] = 0;
3392 tsv->svv[5] = 0;
3393
3394 return (0);
3395 }
3396
smctr_make_ring_station_version(struct net_device * dev,MAC_SUB_VECTOR * tsv)3397 static int smctr_make_ring_station_version(struct net_device *dev,
3398 MAC_SUB_VECTOR *tsv)
3399 {
3400 struct net_local *tp = netdev_priv(dev);
3401
3402 tsv->svi = RING_STATION_VERSION_NUMBER;
3403 tsv->svl = S_RING_STATION_VERSION_NUMBER;
3404
3405 tsv->svv[0] = 0xe2; /* EBCDIC - S */
3406 tsv->svv[1] = 0xd4; /* EBCDIC - M */
3407 tsv->svv[2] = 0xc3; /* EBCDIC - C */
3408 tsv->svv[3] = 0x40; /* EBCDIC - */
3409 tsv->svv[4] = 0xe5; /* EBCDIC - V */
3410 tsv->svv[5] = 0xF0 + (tp->microcode_version >> 4);
3411 tsv->svv[6] = 0xF0 + (tp->microcode_version & 0x0f);
3412 tsv->svv[7] = 0x40; /* EBCDIC - */
3413 tsv->svv[8] = 0xe7; /* EBCDIC - X */
3414
3415 if(tp->extra_info & CHIP_REV_MASK)
3416 tsv->svv[9] = 0xc5; /* EBCDIC - E */
3417 else
3418 tsv->svv[9] = 0xc4; /* EBCDIC - D */
3419
3420 return (0);
3421 }
3422
smctr_make_tx_status_code(struct net_device * dev,MAC_SUB_VECTOR * tsv,__u16 tx_fstatus)3423 static int smctr_make_tx_status_code(struct net_device *dev,
3424 MAC_SUB_VECTOR *tsv, __u16 tx_fstatus)
3425 {
3426 tsv->svi = TRANSMIT_STATUS_CODE;
3427 tsv->svl = S_TRANSMIT_STATUS_CODE;
3428
3429 tsv->svv[0] = ((tx_fstatus & 0x0100 >> 6) | IBM_PASS_SOURCE_ADDR);
3430
3431 /* Stripped frame status of Transmitted Frame */
3432 tsv->svv[1] = tx_fstatus & 0xff;
3433
3434 return (0);
3435 }
3436
smctr_make_upstream_neighbor_addr(struct net_device * dev,MAC_SUB_VECTOR * tsv)3437 static int smctr_make_upstream_neighbor_addr(struct net_device *dev,
3438 MAC_SUB_VECTOR *tsv)
3439 {
3440 struct net_local *tp = netdev_priv(dev);
3441
3442 smctr_get_upstream_neighbor_addr(dev);
3443
3444 tsv->svi = UPSTREAM_NEIGHBOR_ADDRESS;
3445 tsv->svl = S_UPSTREAM_NEIGHBOR_ADDRESS;
3446
3447 tsv->svv[0] = MSB(tp->misc_command_data[0]);
3448 tsv->svv[1] = LSB(tp->misc_command_data[0]);
3449
3450 tsv->svv[2] = MSB(tp->misc_command_data[1]);
3451 tsv->svv[3] = LSB(tp->misc_command_data[1]);
3452
3453 tsv->svv[4] = MSB(tp->misc_command_data[2]);
3454 tsv->svv[5] = LSB(tp->misc_command_data[2]);
3455
3456 return (0);
3457 }
3458
smctr_make_wrap_data(struct net_device * dev,MAC_SUB_VECTOR * tsv)3459 static int smctr_make_wrap_data(struct net_device *dev, MAC_SUB_VECTOR *tsv)
3460 {
3461 tsv->svi = WRAP_DATA;
3462 tsv->svl = S_WRAP_DATA;
3463
3464 return (0);
3465 }
3466
3467 /*
3468 * Open/initialize the board. This is called sometime after
3469 * booting when the 'ifconfig' program is run.
3470 *
3471 * This routine should set everything up anew at each open, even
3472 * registers that "should" only need to be set once at boot, so that
3473 * there is non-reboot way to recover if something goes wrong.
3474 */
smctr_open(struct net_device * dev)3475 static int smctr_open(struct net_device *dev)
3476 {
3477 int err;
3478
3479 if(smctr_debug > 10)
3480 printk(KERN_DEBUG "%s: smctr_open\n", dev->name);
3481
3482 err = smctr_init_adapter(dev);
3483 if(err < 0)
3484 return (err);
3485
3486 return (err);
3487 }
3488
3489 /* Interrupt driven open of Token card. */
smctr_open_tr(struct net_device * dev)3490 static int smctr_open_tr(struct net_device *dev)
3491 {
3492 struct net_local *tp = netdev_priv(dev);
3493 unsigned long flags;
3494 int err;
3495
3496 if(smctr_debug > 10)
3497 printk(KERN_DEBUG "%s: smctr_open_tr\n", dev->name);
3498
3499 /* Now we can actually open the adapter. */
3500 if(tp->status == OPEN)
3501 return (0);
3502 if(tp->status != INITIALIZED)
3503 return (-1);
3504
3505 /* FIXME: it would work a lot better if we masked the irq sources
3506 on the card here, then we could skip the locking and poll nicely */
3507 spin_lock_irqsave(&tp->lock, flags);
3508
3509 smctr_set_page(dev, (__u8 *)tp->ram_access);
3510
3511 if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)MAC_QUEUE)))
3512 goto out;
3513
3514 if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)MAC_QUEUE)))
3515 goto out;
3516
3517 if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)NON_MAC_QUEUE)))
3518 goto out;
3519
3520 if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)NON_MAC_QUEUE)))
3521 goto out;
3522
3523 tp->status = CLOSED;
3524
3525 /* Insert into the Ring or Enter Loopback Mode. */
3526 if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_1)
3527 {
3528 tp->status = CLOSED;
3529
3530 if(!(err = smctr_issue_trc_loopback_cmd(dev)))
3531 {
3532 if(!(err = smctr_wait_cmd(dev)))
3533 tp->status = OPEN;
3534 }
3535
3536 smctr_status_chg(dev);
3537 }
3538 else
3539 {
3540 if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_2)
3541 {
3542 tp->status = CLOSED;
3543 if(!(err = smctr_issue_tri_loopback_cmd(dev)))
3544 {
3545 if(!(err = smctr_wait_cmd(dev)))
3546 tp->status = OPEN;
3547 }
3548
3549 smctr_status_chg(dev);
3550 }
3551 else
3552 {
3553 if((tp->mode_bits & LOOPING_MODE_MASK)
3554 == LOOPBACK_MODE_3)
3555 {
3556 tp->status = CLOSED;
3557 if(!(err = smctr_lobe_media_test_cmd(dev)))
3558 {
3559 if(!(err = smctr_wait_cmd(dev)))
3560 tp->status = OPEN;
3561 }
3562 smctr_status_chg(dev);
3563 }
3564 else
3565 {
3566 if(!(err = smctr_lobe_media_test(dev)))
3567 err = smctr_issue_insert_cmd(dev);
3568 else
3569 {
3570 if(err == LOBE_MEDIA_TEST_FAILED)
3571 printk(KERN_WARNING "%s: Lobe Media Test Failure - Check cable?\n", dev->name);
3572 }
3573 }
3574 }
3575 }
3576
3577 out:
3578 spin_unlock_irqrestore(&tp->lock, flags);
3579
3580 return (err);
3581 }
3582
3583 /* Check for a network adapter of this type,
3584 * and return device structure if one exists.
3585 */
smctr_probe(int unit)3586 struct net_device __init *smctr_probe(int unit)
3587 {
3588 struct net_device *dev = alloc_trdev(sizeof(struct net_local));
3589 static const unsigned ports[] = {
3590 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0, 0x300,
3591 0x320, 0x340, 0x360, 0x380, 0
3592 };
3593 const unsigned *port;
3594 int err = 0;
3595
3596 if (!dev)
3597 return ERR_PTR(-ENOMEM);
3598
3599 if (unit >= 0) {
3600 sprintf(dev->name, "tr%d", unit);
3601 netdev_boot_setup_check(dev);
3602 }
3603
3604 if (dev->base_addr > 0x1ff) /* Check a single specified location. */
3605 err = smctr_probe1(dev, dev->base_addr);
3606 else if(dev->base_addr != 0) /* Don't probe at all. */
3607 err =-ENXIO;
3608 else {
3609 for (port = ports; *port; port++) {
3610 err = smctr_probe1(dev, *port);
3611 if (!err)
3612 break;
3613 }
3614 }
3615 if (err)
3616 goto out;
3617 err = register_netdev(dev);
3618 if (err)
3619 goto out1;
3620 return dev;
3621 out1:
3622 #ifdef CONFIG_MCA_LEGACY
3623 { struct net_local *tp = netdev_priv(dev);
3624 if (tp->slot_num)
3625 mca_mark_as_unused(tp->slot_num);
3626 }
3627 #endif
3628 release_region(dev->base_addr, SMCTR_IO_EXTENT);
3629 free_irq(dev->irq, dev);
3630 out:
3631 free_netdev(dev);
3632 return ERR_PTR(err);
3633 }
3634
3635
smctr_probe1(struct net_device * dev,int ioaddr)3636 static int __init smctr_probe1(struct net_device *dev, int ioaddr)
3637 {
3638 static unsigned version_printed;
3639 struct net_local *tp = netdev_priv(dev);
3640 int err;
3641 __u32 *ram;
3642
3643 if(smctr_debug && version_printed++ == 0)
3644 printk(version);
3645
3646 spin_lock_init(&tp->lock);
3647 dev->base_addr = ioaddr;
3648
3649 /* Actually detect an adapter now. */
3650 err = smctr_chk_isa(dev);
3651 if(err < 0)
3652 {
3653 if ((err = smctr_chk_mca(dev)) < 0) {
3654 err = -ENODEV;
3655 goto out;
3656 }
3657 }
3658
3659 tp = netdev_priv(dev);
3660 dev->mem_start = tp->ram_base;
3661 dev->mem_end = dev->mem_start + 0x10000;
3662 ram = (__u32 *)phys_to_virt(dev->mem_start);
3663 tp->ram_access = *(__u32 *)&ram;
3664 tp->status = NOT_INITIALIZED;
3665
3666 err = smctr_load_firmware(dev);
3667 if(err != UCODE_PRESENT && err != SUCCESS)
3668 {
3669 printk(KERN_ERR "%s: Firmware load failed (%d)\n", dev->name, err);
3670 err = -EIO;
3671 goto out;
3672 }
3673
3674 /* Allow user to specify ring speed on module insert. */
3675 if(ringspeed == 4)
3676 tp->media_type = MEDIA_UTP_4;
3677 else
3678 tp->media_type = MEDIA_UTP_16;
3679
3680 printk(KERN_INFO "%s: %s %s at Io %#4x, Irq %d, Rom %#4x, Ram %#4x.\n",
3681 dev->name, smctr_name, smctr_model,
3682 (unsigned int)dev->base_addr,
3683 dev->irq, tp->rom_base, tp->ram_base);
3684
3685 dev->open = smctr_open;
3686 dev->stop = smctr_close;
3687 dev->hard_start_xmit = smctr_send_packet;
3688 dev->tx_timeout = smctr_timeout;
3689 dev->watchdog_timeo = HZ;
3690 dev->get_stats = smctr_get_stats;
3691 dev->set_multicast_list = &smctr_set_multicast_list;
3692 return (0);
3693
3694 out:
3695 return err;
3696 }
3697
smctr_process_rx_packet(MAC_HEADER * rmf,__u16 size,struct net_device * dev,__u16 rx_status)3698 static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size,
3699 struct net_device *dev, __u16 rx_status)
3700 {
3701 struct net_local *tp = netdev_priv(dev);
3702 struct sk_buff *skb;
3703 __u16 rcode, correlator;
3704 int err = 0;
3705 __u8 xframe = 1;
3706
3707 rmf->vl = SWAP_BYTES(rmf->vl);
3708 if(rx_status & FCB_RX_STATUS_DA_MATCHED)
3709 {
3710 switch(rmf->vc)
3711 {
3712 /* Received MAC Frames Processed by RS. */
3713 case INIT:
3714 if((rcode = smctr_rcv_init(dev, rmf, &correlator)) == HARDWARE_FAILED)
3715 {
3716 return (rcode);
3717 }
3718
3719 if((err = smctr_send_rsp(dev, rmf, rcode,
3720 correlator)))
3721 {
3722 return (err);
3723 }
3724 break;
3725
3726 case CHG_PARM:
3727 if((rcode = smctr_rcv_chg_param(dev, rmf,
3728 &correlator)) ==HARDWARE_FAILED)
3729 {
3730 return (rcode);
3731 }
3732
3733 if((err = smctr_send_rsp(dev, rmf, rcode,
3734 correlator)))
3735 {
3736 return (err);
3737 }
3738 break;
3739
3740 case RQ_ADDR:
3741 if((rcode = smctr_rcv_rq_addr_state_attch(dev,
3742 rmf, &correlator)) != POSITIVE_ACK)
3743 {
3744 if(rcode == HARDWARE_FAILED)
3745 return (rcode);
3746 else
3747 return (smctr_send_rsp(dev, rmf,
3748 rcode, correlator));
3749 }
3750
3751 if((err = smctr_send_rpt_addr(dev, rmf,
3752 correlator)))
3753 {
3754 return (err);
3755 }
3756 break;
3757
3758 case RQ_ATTCH:
3759 if((rcode = smctr_rcv_rq_addr_state_attch(dev,
3760 rmf, &correlator)) != POSITIVE_ACK)
3761 {
3762 if(rcode == HARDWARE_FAILED)
3763 return (rcode);
3764 else
3765 return (smctr_send_rsp(dev, rmf,
3766 rcode,
3767 correlator));
3768 }
3769
3770 if((err = smctr_send_rpt_attch(dev, rmf,
3771 correlator)))
3772 {
3773 return (err);
3774 }
3775 break;
3776
3777 case RQ_STATE:
3778 if((rcode = smctr_rcv_rq_addr_state_attch(dev,
3779 rmf, &correlator)) != POSITIVE_ACK)
3780 {
3781 if(rcode == HARDWARE_FAILED)
3782 return (rcode);
3783 else
3784 return (smctr_send_rsp(dev, rmf,
3785 rcode,
3786 correlator));
3787 }
3788
3789 if((err = smctr_send_rpt_state(dev, rmf,
3790 correlator)))
3791 {
3792 return (err);
3793 }
3794 break;
3795
3796 case TX_FORWARD: {
3797 __u16 uninitialized_var(tx_fstatus);
3798
3799 if((rcode = smctr_rcv_tx_forward(dev, rmf))
3800 != POSITIVE_ACK)
3801 {
3802 if(rcode == HARDWARE_FAILED)
3803 return (rcode);
3804 else
3805 return (smctr_send_rsp(dev, rmf,
3806 rcode,
3807 correlator));
3808 }
3809
3810 if((err = smctr_send_tx_forward(dev, rmf,
3811 &tx_fstatus)) == HARDWARE_FAILED)
3812 {
3813 return (err);
3814 }
3815
3816 if(err == A_FRAME_WAS_FORWARDED)
3817 {
3818 if((err = smctr_send_rpt_tx_forward(dev,
3819 rmf, tx_fstatus))
3820 == HARDWARE_FAILED)
3821 {
3822 return (err);
3823 }
3824 }
3825 break;
3826 }
3827
3828 /* Received MAC Frames Processed by CRS/REM/RPS. */
3829 case RSP:
3830 case RQ_INIT:
3831 case RPT_NEW_MON:
3832 case RPT_SUA_CHG:
3833 case RPT_ACTIVE_ERR:
3834 case RPT_NN_INCMP:
3835 case RPT_ERROR:
3836 case RPT_ATTCH:
3837 case RPT_STATE:
3838 case RPT_ADDR:
3839 break;
3840
3841 /* Rcvd Att. MAC Frame (if RXATMAC set) or UNKNOWN */
3842 default:
3843 xframe = 0;
3844 if(!(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES))
3845 {
3846 rcode = smctr_rcv_unknown(dev, rmf,
3847 &correlator);
3848 if((err = smctr_send_rsp(dev, rmf,rcode,
3849 correlator)))
3850 {
3851 return (err);
3852 }
3853 }
3854
3855 break;
3856 }
3857 }
3858 else
3859 {
3860 /* 1. DA doesn't match (Promiscuous Mode).
3861 * 2. Parse for Extended MAC Frame Type.
3862 */
3863 switch(rmf->vc)
3864 {
3865 case RSP:
3866 case INIT:
3867 case RQ_INIT:
3868 case RQ_ADDR:
3869 case RQ_ATTCH:
3870 case RQ_STATE:
3871 case CHG_PARM:
3872 case RPT_ADDR:
3873 case RPT_ERROR:
3874 case RPT_ATTCH:
3875 case RPT_STATE:
3876 case RPT_NEW_MON:
3877 case RPT_SUA_CHG:
3878 case RPT_NN_INCMP:
3879 case RPT_ACTIVE_ERR:
3880 break;
3881
3882 default:
3883 xframe = 0;
3884 break;
3885 }
3886 }
3887
3888 /* NOTE: UNKNOWN MAC frames will NOT be passed up unless
3889 * ACCEPT_ATT_MAC_FRAMES is set.
3890 */
3891 if(((tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)
3892 && (xframe == (__u8)0))
3893 || ((tp->receive_mask & ACCEPT_EXT_MAC_FRAMES)
3894 && (xframe == (__u8)1)))
3895 {
3896 rmf->vl = SWAP_BYTES(rmf->vl);
3897
3898 if (!(skb = dev_alloc_skb(size)))
3899 return -ENOMEM;
3900 skb->len = size;
3901
3902 /* Slide data into a sleek skb. */
3903 skb_put(skb, skb->len);
3904 skb_copy_to_linear_data(skb, rmf, skb->len);
3905
3906 /* Update Counters */
3907 tp->MacStat.rx_packets++;
3908 tp->MacStat.rx_bytes += skb->len;
3909
3910 /* Kick the packet on up. */
3911 skb->protocol = tr_type_trans(skb, dev);
3912 netif_rx(skb);
3913 err = 0;
3914 }
3915
3916 return (err);
3917 }
3918
3919 /* Adapter RAM test. Incremental word ODD boundary data test. */
smctr_ram_memory_test(struct net_device * dev)3920 static int smctr_ram_memory_test(struct net_device *dev)
3921 {
3922 struct net_local *tp = netdev_priv(dev);
3923 __u16 page, pages_of_ram, start_pattern = 0, word_pattern = 0,
3924 word_read = 0, err_word = 0, err_pattern = 0;
3925 unsigned int err_offset;
3926 __u32 j, pword;
3927 __u8 err = 0;
3928
3929 if(smctr_debug > 10)
3930 printk(KERN_DEBUG "%s: smctr_ram_memory_test\n", dev->name);
3931
3932 start_pattern = 0x0001;
3933 pages_of_ram = tp->ram_size / tp->ram_usable;
3934 pword = tp->ram_access;
3935
3936 /* Incremental word ODD boundary test. */
3937 for(page = 0; (page < pages_of_ram) && (~err);
3938 page++, start_pattern += 0x8000)
3939 {
3940 smctr_set_page(dev, (__u8 *)(tp->ram_access
3941 + (page * tp->ram_usable * 1024) + 1));
3942 word_pattern = start_pattern;
3943
3944 for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1; j += 2)
3945 *(__u16 *)(pword + j) = word_pattern++;
3946
3947 word_pattern = start_pattern;
3948
3949 for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1
3950 && (~err); j += 2, word_pattern++)
3951 {
3952 word_read = *(__u16 *)(pword + j);
3953 if(word_read != word_pattern)
3954 {
3955 err = (__u8)1;
3956 err_offset = j;
3957 err_word = word_read;
3958 err_pattern = word_pattern;
3959 return (RAM_TEST_FAILED);
3960 }
3961 }
3962 }
3963
3964 /* Zero out memory. */
3965 for(page = 0; page < pages_of_ram && (~err); page++)
3966 {
3967 smctr_set_page(dev, (__u8 *)(tp->ram_access
3968 + (page * tp->ram_usable * 1024)));
3969 word_pattern = 0;
3970
3971 for(j = 0; j < (__u32)tp->ram_usable * 1024; j +=2)
3972 *(__u16 *)(pword + j) = word_pattern;
3973
3974 for(j =0; j < (__u32)tp->ram_usable * 1024
3975 && (~err); j += 2)
3976 {
3977 word_read = *(__u16 *)(pword + j);
3978 if(word_read != word_pattern)
3979 {
3980 err = (__u8)1;
3981 err_offset = j;
3982 err_word = word_read;
3983 err_pattern = word_pattern;
3984 return (RAM_TEST_FAILED);
3985 }
3986 }
3987 }
3988
3989 smctr_set_page(dev, (__u8 *)tp->ram_access);
3990
3991 return (0);
3992 }
3993
smctr_rcv_chg_param(struct net_device * dev,MAC_HEADER * rmf,__u16 * correlator)3994 static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf,
3995 __u16 *correlator)
3996 {
3997 MAC_SUB_VECTOR *rsv;
3998 signed short vlen;
3999 __u16 rcode = POSITIVE_ACK;
4000 unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4001
4002 /* This Frame can only come from a CRS */
4003 if((rmf->dc_sc & SC_MASK) != SC_CRS)
4004 return(E_INAPPROPRIATE_SOURCE_CLASS);
4005
4006 /* Remove MVID Length from total length. */
4007 vlen = (signed short)rmf->vl - 4;
4008
4009 /* Point to First SVID */
4010 rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4011
4012 /* Search for Appropriate SVID's. */
4013 while((vlen > 0) && (rcode == POSITIVE_ACK))
4014 {
4015 switch(rsv->svi)
4016 {
4017 case CORRELATOR:
4018 svectors |= F_CORRELATOR;
4019 rcode = smctr_set_corr(dev, rsv, correlator);
4020 break;
4021
4022 case LOCAL_RING_NUMBER:
4023 svectors |= F_LOCAL_RING_NUMBER;
4024 rcode = smctr_set_local_ring_num(dev, rsv);
4025 break;
4026
4027 case ASSIGN_PHYSICAL_DROP:
4028 svectors |= F_ASSIGN_PHYSICAL_DROP;
4029 rcode = smctr_set_phy_drop(dev, rsv);
4030 break;
4031
4032 case ERROR_TIMER_VALUE:
4033 svectors |= F_ERROR_TIMER_VALUE;
4034 rcode = smctr_set_error_timer_value(dev, rsv);
4035 break;
4036
4037 case AUTHORIZED_FUNCTION_CLASS:
4038 svectors |= F_AUTHORIZED_FUNCTION_CLASS;
4039 rcode = smctr_set_auth_funct_class(dev, rsv);
4040 break;
4041
4042 case AUTHORIZED_ACCESS_PRIORITY:
4043 svectors |= F_AUTHORIZED_ACCESS_PRIORITY;
4044 rcode = smctr_set_auth_access_pri(dev, rsv);
4045 break;
4046
4047 default:
4048 rcode = E_SUB_VECTOR_UNKNOWN;
4049 break;
4050 }
4051
4052 /* Let Sender Know if SUM of SV length's is
4053 * larger then length in MVID length field
4054 */
4055 if((vlen -= rsv->svl) < 0)
4056 rcode = E_VECTOR_LENGTH_ERROR;
4057
4058 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4059 }
4060
4061 if(rcode == POSITIVE_ACK)
4062 {
4063 /* Let Sender Know if MVID length field
4064 * is larger then SUM of SV length's
4065 */
4066 if(vlen != 0)
4067 rcode = E_VECTOR_LENGTH_ERROR;
4068 else
4069 {
4070 /* Let Sender Know if Expected SVID Missing */
4071 if((svectors & R_CHG_PARM) ^ R_CHG_PARM)
4072 rcode = E_MISSING_SUB_VECTOR;
4073 }
4074 }
4075
4076 return (rcode);
4077 }
4078
smctr_rcv_init(struct net_device * dev,MAC_HEADER * rmf,__u16 * correlator)4079 static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf,
4080 __u16 *correlator)
4081 {
4082 MAC_SUB_VECTOR *rsv;
4083 signed short vlen;
4084 __u16 rcode = POSITIVE_ACK;
4085 unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4086
4087 /* This Frame can only come from a RPS */
4088 if((rmf->dc_sc & SC_MASK) != SC_RPS)
4089 return (E_INAPPROPRIATE_SOURCE_CLASS);
4090
4091 /* Remove MVID Length from total length. */
4092 vlen = (signed short)rmf->vl - 4;
4093
4094 /* Point to First SVID */
4095 rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4096
4097 /* Search for Appropriate SVID's */
4098 while((vlen > 0) && (rcode == POSITIVE_ACK))
4099 {
4100 switch(rsv->svi)
4101 {
4102 case CORRELATOR:
4103 svectors |= F_CORRELATOR;
4104 rcode = smctr_set_corr(dev, rsv, correlator);
4105 break;
4106
4107 case LOCAL_RING_NUMBER:
4108 svectors |= F_LOCAL_RING_NUMBER;
4109 rcode = smctr_set_local_ring_num(dev, rsv);
4110 break;
4111
4112 case ASSIGN_PHYSICAL_DROP:
4113 svectors |= F_ASSIGN_PHYSICAL_DROP;
4114 rcode = smctr_set_phy_drop(dev, rsv);
4115 break;
4116
4117 case ERROR_TIMER_VALUE:
4118 svectors |= F_ERROR_TIMER_VALUE;
4119 rcode = smctr_set_error_timer_value(dev, rsv);
4120 break;
4121
4122 default:
4123 rcode = E_SUB_VECTOR_UNKNOWN;
4124 break;
4125 }
4126
4127 /* Let Sender Know if SUM of SV length's is
4128 * larger then length in MVID length field
4129 */
4130 if((vlen -= rsv->svl) < 0)
4131 rcode = E_VECTOR_LENGTH_ERROR;
4132
4133 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4134 }
4135
4136 if(rcode == POSITIVE_ACK)
4137 {
4138 /* Let Sender Know if MVID length field
4139 * is larger then SUM of SV length's
4140 */
4141 if(vlen != 0)
4142 rcode = E_VECTOR_LENGTH_ERROR;
4143 else
4144 {
4145 /* Let Sender Know if Expected SV Missing */
4146 if((svectors & R_INIT) ^ R_INIT)
4147 rcode = E_MISSING_SUB_VECTOR;
4148 }
4149 }
4150
4151 return (rcode);
4152 }
4153
smctr_rcv_tx_forward(struct net_device * dev,MAC_HEADER * rmf)4154 static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf)
4155 {
4156 MAC_SUB_VECTOR *rsv;
4157 signed short vlen;
4158 __u16 rcode = POSITIVE_ACK;
4159 unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4160
4161 /* This Frame can only come from a CRS */
4162 if((rmf->dc_sc & SC_MASK) != SC_CRS)
4163 return (E_INAPPROPRIATE_SOURCE_CLASS);
4164
4165 /* Remove MVID Length from total length */
4166 vlen = (signed short)rmf->vl - 4;
4167
4168 /* Point to First SVID */
4169 rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4170
4171 /* Search for Appropriate SVID's */
4172 while((vlen > 0) && (rcode == POSITIVE_ACK))
4173 {
4174 switch(rsv->svi)
4175 {
4176 case FRAME_FORWARD:
4177 svectors |= F_FRAME_FORWARD;
4178 rcode = smctr_set_frame_forward(dev, rsv,
4179 rmf->dc_sc);
4180 break;
4181
4182 default:
4183 rcode = E_SUB_VECTOR_UNKNOWN;
4184 break;
4185 }
4186
4187 /* Let Sender Know if SUM of SV length's is
4188 * larger then length in MVID length field
4189 */
4190 if((vlen -= rsv->svl) < 0)
4191 rcode = E_VECTOR_LENGTH_ERROR;
4192
4193 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4194 }
4195
4196 if(rcode == POSITIVE_ACK)
4197 {
4198 /* Let Sender Know if MVID length field
4199 * is larger then SUM of SV length's
4200 */
4201 if(vlen != 0)
4202 rcode = E_VECTOR_LENGTH_ERROR;
4203 else
4204 {
4205 /* Let Sender Know if Expected SV Missing */
4206 if((svectors & R_TX_FORWARD) ^ R_TX_FORWARD)
4207 rcode = E_MISSING_SUB_VECTOR;
4208 }
4209 }
4210
4211 return (rcode);
4212 }
4213
smctr_rcv_rq_addr_state_attch(struct net_device * dev,MAC_HEADER * rmf,__u16 * correlator)4214 static int smctr_rcv_rq_addr_state_attch(struct net_device *dev,
4215 MAC_HEADER *rmf, __u16 *correlator)
4216 {
4217 MAC_SUB_VECTOR *rsv;
4218 signed short vlen;
4219 __u16 rcode = POSITIVE_ACK;
4220 unsigned int svectors = F_NO_SUB_VECTORS_FOUND;
4221
4222 /* Remove MVID Length from total length */
4223 vlen = (signed short)rmf->vl - 4;
4224
4225 /* Point to First SVID */
4226 rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4227
4228 /* Search for Appropriate SVID's */
4229 while((vlen > 0) && (rcode == POSITIVE_ACK))
4230 {
4231 switch(rsv->svi)
4232 {
4233 case CORRELATOR:
4234 svectors |= F_CORRELATOR;
4235 rcode = smctr_set_corr(dev, rsv, correlator);
4236 break;
4237
4238 default:
4239 rcode = E_SUB_VECTOR_UNKNOWN;
4240 break;
4241 }
4242
4243 /* Let Sender Know if SUM of SV length's is
4244 * larger then length in MVID length field
4245 */
4246 if((vlen -= rsv->svl) < 0)
4247 rcode = E_VECTOR_LENGTH_ERROR;
4248
4249 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4250 }
4251
4252 if(rcode == POSITIVE_ACK)
4253 {
4254 /* Let Sender Know if MVID length field
4255 * is larger then SUM of SV length's
4256 */
4257 if(vlen != 0)
4258 rcode = E_VECTOR_LENGTH_ERROR;
4259 else
4260 {
4261 /* Let Sender Know if Expected SVID Missing */
4262 if((svectors & R_RQ_ATTCH_STATE_ADDR)
4263 ^ R_RQ_ATTCH_STATE_ADDR)
4264 rcode = E_MISSING_SUB_VECTOR;
4265 }
4266 }
4267
4268 return (rcode);
4269 }
4270
smctr_rcv_unknown(struct net_device * dev,MAC_HEADER * rmf,__u16 * correlator)4271 static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf,
4272 __u16 *correlator)
4273 {
4274 MAC_SUB_VECTOR *rsv;
4275 signed short vlen;
4276
4277 *correlator = 0;
4278
4279 /* Remove MVID Length from total length */
4280 vlen = (signed short)rmf->vl - 4;
4281
4282 /* Point to First SVID */
4283 rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER));
4284
4285 /* Search for CORRELATOR for RSP to UNKNOWN */
4286 while((vlen > 0) && (*correlator == 0))
4287 {
4288 switch(rsv->svi)
4289 {
4290 case CORRELATOR:
4291 smctr_set_corr(dev, rsv, correlator);
4292 break;
4293
4294 default:
4295 break;
4296 }
4297
4298 vlen -= rsv->svl;
4299 rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl);
4300 }
4301
4302 return (E_UNRECOGNIZED_VECTOR_ID);
4303 }
4304
4305 /*
4306 * Reset the 825 NIC and exit w:
4307 * 1. The NIC reset cleared (non-reset state), halted and un-initialized.
4308 * 2. TINT masked.
4309 * 3. CBUSY masked.
4310 * 4. TINT clear.
4311 * 5. CBUSY clear.
4312 */
smctr_reset_adapter(struct net_device * dev)4313 static int smctr_reset_adapter(struct net_device *dev)
4314 {
4315 struct net_local *tp = netdev_priv(dev);
4316 int ioaddr = dev->base_addr;
4317
4318 /* Reseting the NIC will put it in a halted and un-initialized state. */ smctr_set_trc_reset(ioaddr);
4319 mdelay(200); /* ~2 ms */
4320
4321 smctr_clear_trc_reset(ioaddr);
4322 mdelay(200); /* ~2 ms */
4323
4324 /* Remove any latched interrupts that occurred prior to reseting the
4325 * adapter or possibily caused by line glitches due to the reset.
4326 */
4327 outb(tp->trc_mask | CSR_CLRTINT | CSR_CLRCBUSY, ioaddr + CSR);
4328
4329 return (0);
4330 }
4331
smctr_restart_tx_chain(struct net_device * dev,short queue)4332 static int smctr_restart_tx_chain(struct net_device *dev, short queue)
4333 {
4334 struct net_local *tp = netdev_priv(dev);
4335 int err = 0;
4336
4337 if(smctr_debug > 10)
4338 printk(KERN_DEBUG "%s: smctr_restart_tx_chain\n", dev->name);
4339
4340 if(tp->num_tx_fcbs_used[queue] != 0
4341 && tp->tx_queue_status[queue] == NOT_TRANSMITING)
4342 {
4343 tp->tx_queue_status[queue] = TRANSMITING;
4344 err = smctr_issue_resume_tx_fcb_cmd(dev, queue);
4345 }
4346
4347 return (err);
4348 }
4349
smctr_ring_status_chg(struct net_device * dev)4350 static int smctr_ring_status_chg(struct net_device *dev)
4351 {
4352 struct net_local *tp = netdev_priv(dev);
4353
4354 if(smctr_debug > 10)
4355 printk(KERN_DEBUG "%s: smctr_ring_status_chg\n", dev->name);
4356
4357 /* Check for ring_status_flag: whenever MONITOR_STATE_BIT
4358 * Bit is set, check value of monitor_state, only then we
4359 * enable and start transmit/receive timeout (if and only
4360 * if it is MS_ACTIVE_MONITOR_STATE or MS_STANDBY_MONITOR_STATE)
4361 */
4362 if(tp->ring_status_flags == MONITOR_STATE_CHANGED)
4363 {
4364 if((tp->monitor_state == MS_ACTIVE_MONITOR_STATE)
4365 || (tp->monitor_state == MS_STANDBY_MONITOR_STATE))
4366 {
4367 tp->monitor_state_ready = 1;
4368 }
4369 else
4370 {
4371 /* if adapter is NOT in either active monitor
4372 * or standby monitor state => Disable
4373 * transmit/receive timeout.
4374 */
4375 tp->monitor_state_ready = 0;
4376
4377 /* Ring speed problem, switching to auto mode. */
4378 if(tp->monitor_state == MS_MONITOR_FSM_INACTIVE
4379 && !tp->cleanup)
4380 {
4381 printk(KERN_INFO "%s: Incorrect ring speed switching.\n",
4382 dev->name);
4383 smctr_set_ring_speed(dev);
4384 }
4385 }
4386 }
4387
4388 if(!(tp->ring_status_flags & RING_STATUS_CHANGED))
4389 return (0);
4390
4391 switch(tp->ring_status)
4392 {
4393 case RING_RECOVERY:
4394 printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
4395 tp->current_ring_status |= RING_RECOVERY;
4396 break;
4397
4398 case SINGLE_STATION:
4399 printk(KERN_INFO "%s: Single Statinon\n", dev->name);
4400 tp->current_ring_status |= SINGLE_STATION;
4401 break;
4402
4403 case COUNTER_OVERFLOW:
4404 printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
4405 tp->current_ring_status |= COUNTER_OVERFLOW;
4406 break;
4407
4408 case REMOVE_RECEIVED:
4409 printk(KERN_INFO "%s: Remove Received\n", dev->name);
4410 tp->current_ring_status |= REMOVE_RECEIVED;
4411 break;
4412
4413 case AUTO_REMOVAL_ERROR:
4414 printk(KERN_INFO "%s: Auto Remove Error\n", dev->name);
4415 tp->current_ring_status |= AUTO_REMOVAL_ERROR;
4416 break;
4417
4418 case LOBE_WIRE_FAULT:
4419 printk(KERN_INFO "%s: Lobe Wire Fault\n", dev->name);
4420 tp->current_ring_status |= LOBE_WIRE_FAULT;
4421 break;
4422
4423 case TRANSMIT_BEACON:
4424 printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
4425 tp->current_ring_status |= TRANSMIT_BEACON;
4426 break;
4427
4428 case SOFT_ERROR:
4429 printk(KERN_INFO "%s: Soft Error\n", dev->name);
4430 tp->current_ring_status |= SOFT_ERROR;
4431 break;
4432
4433 case HARD_ERROR:
4434 printk(KERN_INFO "%s: Hard Error\n", dev->name);
4435 tp->current_ring_status |= HARD_ERROR;
4436 break;
4437
4438 case SIGNAL_LOSS:
4439 printk(KERN_INFO "%s: Signal Loss\n", dev->name);
4440 tp->current_ring_status |= SIGNAL_LOSS;
4441 break;
4442
4443 default:
4444 printk(KERN_INFO "%s: Unknown ring status change\n",
4445 dev->name);
4446 break;
4447 }
4448
4449 return (0);
4450 }
4451
smctr_rx_frame(struct net_device * dev)4452 static int smctr_rx_frame(struct net_device *dev)
4453 {
4454 struct net_local *tp = netdev_priv(dev);
4455 __u16 queue, status, rx_size, err = 0;
4456 __u8 *pbuff;
4457
4458 if(smctr_debug > 10)
4459 printk(KERN_DEBUG "%s: smctr_rx_frame\n", dev->name);
4460
4461 queue = tp->receive_queue_number;
4462
4463 while((status = tp->rx_fcb_curr[queue]->frame_status) != SUCCESS)
4464 {
4465 err = HARDWARE_FAILED;
4466
4467 if(((status & 0x007f) == 0)
4468 || ((tp->receive_mask & ACCEPT_ERR_PACKETS) != 0))
4469 {
4470 /* frame length less the CRC (4 bytes) + FS (1 byte) */
4471 rx_size = tp->rx_fcb_curr[queue]->frame_length - 5;
4472
4473 pbuff = smctr_get_rx_pointer(dev, queue);
4474
4475 smctr_set_page(dev, pbuff);
4476 smctr_disable_16bit(dev);
4477
4478 /* pbuff points to addr within one page */
4479 pbuff = (__u8 *)PAGE_POINTER(pbuff);
4480
4481 if(queue == NON_MAC_QUEUE)
4482 {
4483 struct sk_buff *skb;
4484
4485 skb = dev_alloc_skb(rx_size);
4486 if (skb) {
4487 skb_put(skb, rx_size);
4488
4489 skb_copy_to_linear_data(skb, pbuff, rx_size);
4490
4491 /* Update Counters */
4492 tp->MacStat.rx_packets++;
4493 tp->MacStat.rx_bytes += skb->len;
4494
4495 /* Kick the packet on up. */
4496 skb->protocol = tr_type_trans(skb, dev);
4497 netif_rx(skb);
4498 } else {
4499 }
4500 }
4501 else
4502 smctr_process_rx_packet((MAC_HEADER *)pbuff,
4503 rx_size, dev, status);
4504 }
4505
4506 smctr_enable_16bit(dev);
4507 smctr_set_page(dev, (__u8 *)tp->ram_access);
4508 smctr_update_rx_chain(dev, queue);
4509
4510 if(err != SUCCESS)
4511 break;
4512 }
4513
4514 return (err);
4515 }
4516
smctr_send_dat(struct net_device * dev)4517 static int smctr_send_dat(struct net_device *dev)
4518 {
4519 struct net_local *tp = netdev_priv(dev);
4520 unsigned int i, err;
4521 MAC_HEADER *tmf;
4522 FCBlock *fcb;
4523
4524 if(smctr_debug > 10)
4525 printk(KERN_DEBUG "%s: smctr_send_dat\n", dev->name);
4526
4527 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE,
4528 sizeof(MAC_HEADER))) == (FCBlock *)(-1L))
4529 {
4530 return (OUT_OF_RESOURCES);
4531 }
4532
4533 /* Initialize DAT Data Fields. */
4534 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4535 tmf->ac = MSB(AC_FC_DAT);
4536 tmf->fc = LSB(AC_FC_DAT);
4537
4538 for(i = 0; i < 6; i++)
4539 {
4540 tmf->sa[i] = dev->dev_addr[i];
4541 tmf->da[i] = dev->dev_addr[i];
4542
4543 }
4544
4545 tmf->vc = DAT;
4546 tmf->dc_sc = DC_RS | SC_RS;
4547 tmf->vl = 4;
4548 tmf->vl = SWAP_BYTES(tmf->vl);
4549
4550 /* Start Transmit. */
4551 if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
4552 return (err);
4553
4554 /* Wait for Transmit to Complete */
4555 for(i = 0; i < 10000; i++)
4556 {
4557 if(fcb->frame_status & FCB_COMMAND_DONE)
4558 break;
4559 mdelay(1);
4560 }
4561
4562 /* Check if GOOD frame Tx'ed. */
4563 if(!(fcb->frame_status & FCB_COMMAND_DONE)
4564 || fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS))
4565 {
4566 return (INITIALIZE_FAILED);
4567 }
4568
4569 /* De-allocated Tx FCB and Frame Buffer
4570 * The FCB must be de-allocated manually if executing with
4571 * interrupts disabled, other wise the ISR (LM_Service_Events)
4572 * will de-allocate it when the interrupt occurs.
4573 */
4574 tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
4575 smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
4576
4577 return (0);
4578 }
4579
smctr_timeout(struct net_device * dev)4580 static void smctr_timeout(struct net_device *dev)
4581 {
4582 /*
4583 * If we get here, some higher level has decided we are broken.
4584 * There should really be a "kick me" function call instead.
4585 *
4586 * Resetting the token ring adapter takes a long time so just
4587 * fake transmission time and go on trying. Our own timeout
4588 * routine is in sktr_timer_chk()
4589 */
4590 dev->trans_start = jiffies;
4591 netif_wake_queue(dev);
4592 }
4593
4594 /*
4595 * Gets skb from system, queues it and checks if it can be sent
4596 */
smctr_send_packet(struct sk_buff * skb,struct net_device * dev)4597 static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev)
4598 {
4599 struct net_local *tp = netdev_priv(dev);
4600
4601 if(smctr_debug > 10)
4602 printk(KERN_DEBUG "%s: smctr_send_packet\n", dev->name);
4603
4604 /*
4605 * Block a transmit overlap
4606 */
4607
4608 netif_stop_queue(dev);
4609
4610 if(tp->QueueSkb == 0)
4611 return (1); /* Return with tbusy set: queue full */
4612
4613 tp->QueueSkb--;
4614 skb_queue_tail(&tp->SendSkbQueue, skb);
4615 smctr_hardware_send_packet(dev, tp);
4616 if(tp->QueueSkb > 0)
4617 netif_wake_queue(dev);
4618
4619 return (0);
4620 }
4621
smctr_send_lobe_media_test(struct net_device * dev)4622 static int smctr_send_lobe_media_test(struct net_device *dev)
4623 {
4624 struct net_local *tp = netdev_priv(dev);
4625 MAC_SUB_VECTOR *tsv;
4626 MAC_HEADER *tmf;
4627 FCBlock *fcb;
4628 __u32 i;
4629 int err;
4630
4631 if(smctr_debug > 15)
4632 printk(KERN_DEBUG "%s: smctr_send_lobe_media_test\n", dev->name);
4633
4634 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(struct trh_hdr)
4635 + S_WRAP_DATA + S_WRAP_DATA)) == (FCBlock *)(-1L))
4636 {
4637 return (OUT_OF_RESOURCES);
4638 }
4639
4640 /* Initialize DAT Data Fields. */
4641 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4642 tmf->ac = MSB(AC_FC_LOBE_MEDIA_TEST);
4643 tmf->fc = LSB(AC_FC_LOBE_MEDIA_TEST);
4644
4645 for(i = 0; i < 6; i++)
4646 {
4647 tmf->da[i] = 0;
4648 tmf->sa[i] = dev->dev_addr[i];
4649 }
4650
4651 tmf->vc = LOBE_MEDIA_TEST;
4652 tmf->dc_sc = DC_RS | SC_RS;
4653 tmf->vl = 4;
4654
4655 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4656 smctr_make_wrap_data(dev, tsv);
4657 tmf->vl += tsv->svl;
4658
4659 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4660 smctr_make_wrap_data(dev, tsv);
4661 tmf->vl += tsv->svl;
4662
4663 /* Start Transmit. */
4664 tmf->vl = SWAP_BYTES(tmf->vl);
4665 if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
4666 return (err);
4667
4668 /* Wait for Transmit to Complete. (10 ms). */
4669 for(i=0; i < 10000; i++)
4670 {
4671 if(fcb->frame_status & FCB_COMMAND_DONE)
4672 break;
4673 mdelay(1);
4674 }
4675
4676 /* Check if GOOD frame Tx'ed */
4677 if(!(fcb->frame_status & FCB_COMMAND_DONE)
4678 || fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS))
4679 {
4680 return (LOBE_MEDIA_TEST_FAILED);
4681 }
4682
4683 /* De-allocated Tx FCB and Frame Buffer
4684 * The FCB must be de-allocated manually if executing with
4685 * interrupts disabled, other wise the ISR (LM_Service_Events)
4686 * will de-allocate it when the interrupt occurs.
4687 */
4688 tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
4689 smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
4690
4691 return (0);
4692 }
4693
smctr_send_rpt_addr(struct net_device * dev,MAC_HEADER * rmf,__u16 correlator)4694 static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf,
4695 __u16 correlator)
4696 {
4697 MAC_HEADER *tmf;
4698 MAC_SUB_VECTOR *tsv;
4699 FCBlock *fcb;
4700
4701 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4702 + S_CORRELATOR + S_PHYSICAL_DROP + S_UPSTREAM_NEIGHBOR_ADDRESS
4703 + S_ADDRESS_MODIFER + S_GROUP_ADDRESS + S_FUNCTIONAL_ADDRESS))
4704 == (FCBlock *)(-1L))
4705 {
4706 return (0);
4707 }
4708
4709 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4710 tmf->vc = RPT_ADDR;
4711 tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4712 tmf->vl = 4;
4713
4714 smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ADDR);
4715
4716 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4717 smctr_make_corr(dev, tsv, correlator);
4718
4719 tmf->vl += tsv->svl;
4720 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4721 smctr_make_phy_drop_num(dev, tsv);
4722
4723 tmf->vl += tsv->svl;
4724 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4725 smctr_make_upstream_neighbor_addr(dev, tsv);
4726
4727 tmf->vl += tsv->svl;
4728 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4729 smctr_make_addr_mod(dev, tsv);
4730
4731 tmf->vl += tsv->svl;
4732 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4733 smctr_make_group_addr(dev, tsv);
4734
4735 tmf->vl += tsv->svl;
4736 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4737 smctr_make_funct_addr(dev, tsv);
4738
4739 tmf->vl += tsv->svl;
4740
4741 /* Subtract out MVID and MVL which is
4742 * include in both vl and MAC_HEADER
4743 */
4744 /* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4745 fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4746 */
4747 tmf->vl = SWAP_BYTES(tmf->vl);
4748
4749 return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4750 }
4751
smctr_send_rpt_attch(struct net_device * dev,MAC_HEADER * rmf,__u16 correlator)4752 static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf,
4753 __u16 correlator)
4754 {
4755 MAC_HEADER *tmf;
4756 MAC_SUB_VECTOR *tsv;
4757 FCBlock *fcb;
4758
4759 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4760 + S_CORRELATOR + S_PRODUCT_INSTANCE_ID + S_FUNCTIONAL_ADDRESS
4761 + S_AUTHORIZED_FUNCTION_CLASS + S_AUTHORIZED_ACCESS_PRIORITY))
4762 == (FCBlock *)(-1L))
4763 {
4764 return (0);
4765 }
4766
4767 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4768 tmf->vc = RPT_ATTCH;
4769 tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4770 tmf->vl = 4;
4771
4772 smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ATTCH);
4773
4774 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4775 smctr_make_corr(dev, tsv, correlator);
4776
4777 tmf->vl += tsv->svl;
4778 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4779 smctr_make_product_id(dev, tsv);
4780
4781 tmf->vl += tsv->svl;
4782 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4783 smctr_make_funct_addr(dev, tsv);
4784
4785 tmf->vl += tsv->svl;
4786 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4787 smctr_make_auth_funct_class(dev, tsv);
4788
4789 tmf->vl += tsv->svl;
4790 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4791 smctr_make_access_pri(dev, tsv);
4792
4793 tmf->vl += tsv->svl;
4794
4795 /* Subtract out MVID and MVL which is
4796 * include in both vl and MAC_HEADER
4797 */
4798 /* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4799 fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4800 */
4801 tmf->vl = SWAP_BYTES(tmf->vl);
4802
4803 return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4804 }
4805
smctr_send_rpt_state(struct net_device * dev,MAC_HEADER * rmf,__u16 correlator)4806 static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf,
4807 __u16 correlator)
4808 {
4809 MAC_HEADER *tmf;
4810 MAC_SUB_VECTOR *tsv;
4811 FCBlock *fcb;
4812
4813 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4814 + S_CORRELATOR + S_RING_STATION_VERSION_NUMBER
4815 + S_RING_STATION_STATUS + S_STATION_IDENTIFER))
4816 == (FCBlock *)(-1L))
4817 {
4818 return (0);
4819 }
4820
4821 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4822 tmf->vc = RPT_STATE;
4823 tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4824 tmf->vl = 4;
4825
4826 smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_STATE);
4827
4828 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4829 smctr_make_corr(dev, tsv, correlator);
4830
4831 tmf->vl += tsv->svl;
4832 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4833 smctr_make_ring_station_version(dev, tsv);
4834
4835 tmf->vl += tsv->svl;
4836 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4837 smctr_make_ring_station_status(dev, tsv);
4838
4839 tmf->vl += tsv->svl;
4840 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4841 smctr_make_station_id(dev, tsv);
4842
4843 tmf->vl += tsv->svl;
4844
4845 /* Subtract out MVID and MVL which is
4846 * include in both vl and MAC_HEADER
4847 */
4848 /* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4849 fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4850 */
4851 tmf->vl = SWAP_BYTES(tmf->vl);
4852
4853 return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4854 }
4855
smctr_send_rpt_tx_forward(struct net_device * dev,MAC_HEADER * rmf,__u16 tx_fstatus)4856 static int smctr_send_rpt_tx_forward(struct net_device *dev,
4857 MAC_HEADER *rmf, __u16 tx_fstatus)
4858 {
4859 MAC_HEADER *tmf;
4860 MAC_SUB_VECTOR *tsv;
4861 FCBlock *fcb;
4862
4863 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4864 + S_TRANSMIT_STATUS_CODE)) == (FCBlock *)(-1L))
4865 {
4866 return (0);
4867 }
4868
4869 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4870 tmf->vc = RPT_TX_FORWARD;
4871 tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4872 tmf->vl = 4;
4873
4874 smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_TX_FORWARD);
4875
4876 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4877 smctr_make_tx_status_code(dev, tsv, tx_fstatus);
4878
4879 tmf->vl += tsv->svl;
4880
4881 /* Subtract out MVID and MVL which is
4882 * include in both vl and MAC_HEADER
4883 */
4884 /* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4885 fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4886 */
4887 tmf->vl = SWAP_BYTES(tmf->vl);
4888
4889 return(smctr_trc_send_packet(dev, fcb, MAC_QUEUE));
4890 }
4891
smctr_send_rsp(struct net_device * dev,MAC_HEADER * rmf,__u16 rcode,__u16 correlator)4892 static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf,
4893 __u16 rcode, __u16 correlator)
4894 {
4895 MAC_HEADER *tmf;
4896 MAC_SUB_VECTOR *tsv;
4897 FCBlock *fcb;
4898
4899 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4900 + S_CORRELATOR + S_RESPONSE_CODE)) == (FCBlock *)(-1L))
4901 {
4902 return (0);
4903 }
4904
4905 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4906 tmf->vc = RSP;
4907 tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4;
4908 tmf->vl = 4;
4909
4910 smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RSP);
4911
4912 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4913 smctr_make_corr(dev, tsv, correlator);
4914
4915 return (0);
4916 }
4917
smctr_send_rq_init(struct net_device * dev)4918 static int smctr_send_rq_init(struct net_device *dev)
4919 {
4920 struct net_local *tp = netdev_priv(dev);
4921 MAC_HEADER *tmf;
4922 MAC_SUB_VECTOR *tsv;
4923 FCBlock *fcb;
4924 unsigned int i, count = 0;
4925 __u16 fstatus;
4926 int err;
4927
4928 do {
4929 if(((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER)
4930 + S_PRODUCT_INSTANCE_ID + S_UPSTREAM_NEIGHBOR_ADDRESS
4931 + S_RING_STATION_VERSION_NUMBER + S_ADDRESS_MODIFER))
4932 == (FCBlock *)(-1L)))
4933 {
4934 return (0);
4935 }
4936
4937 tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr;
4938 tmf->vc = RQ_INIT;
4939 tmf->dc_sc = DC_RPS | SC_RS;
4940 tmf->vl = 4;
4941
4942 smctr_make_8025_hdr(dev, NULL, tmf, AC_FC_RQ_INIT);
4943
4944 tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER));
4945 smctr_make_product_id(dev, tsv);
4946
4947 tmf->vl += tsv->svl;
4948 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4949 smctr_make_upstream_neighbor_addr(dev, tsv);
4950
4951 tmf->vl += tsv->svl;
4952 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4953 smctr_make_ring_station_version(dev, tsv);
4954
4955 tmf->vl += tsv->svl;
4956 tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl);
4957 smctr_make_addr_mod(dev, tsv);
4958
4959 tmf->vl += tsv->svl;
4960
4961 /* Subtract out MVID and MVL which is
4962 * include in both vl and MAC_HEADER
4963 */
4964 /* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4965 fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4;
4966 */
4967 tmf->vl = SWAP_BYTES(tmf->vl);
4968
4969 if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
4970 return (err);
4971
4972 /* Wait for Transmit to Complete */
4973 for(i = 0; i < 10000; i++)
4974 {
4975 if(fcb->frame_status & FCB_COMMAND_DONE)
4976 break;
4977 mdelay(1);
4978 }
4979
4980 /* Check if GOOD frame Tx'ed */
4981 fstatus = fcb->frame_status;
4982
4983 if(!(fstatus & FCB_COMMAND_DONE))
4984 return (HARDWARE_FAILED);
4985
4986 if(!(fstatus & FCB_TX_STATUS_E))
4987 count++;
4988
4989 /* De-allocated Tx FCB and Frame Buffer
4990 * The FCB must be de-allocated manually if executing with
4991 * interrupts disabled, other wise the ISR (LM_Service_Events)
4992 * will de-allocate it when the interrupt occurs.
4993 */
4994 tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING;
4995 smctr_update_tx_chain(dev, fcb, MAC_QUEUE);
4996 } while(count < 4 && ((fstatus & FCB_TX_AC_BITS) ^ FCB_TX_AC_BITS));
4997
4998 return (smctr_join_complete_state(dev));
4999 }
5000
smctr_send_tx_forward(struct net_device * dev,MAC_HEADER * rmf,__u16 * tx_fstatus)5001 static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf,
5002 __u16 *tx_fstatus)
5003 {
5004 struct net_local *tp = netdev_priv(dev);
5005 FCBlock *fcb;
5006 unsigned int i;
5007 int err;
5008
5009 /* Check if this is the END POINT of the Transmit Forward Chain. */
5010 if(rmf->vl <= 18)
5011 return (0);
5012
5013 /* Allocate Transmit FCB only by requesting 0 bytes
5014 * of data buffer.
5015 */
5016 if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, 0)) == (FCBlock *)(-1L))
5017 return (0);
5018
5019 /* Set pointer to Transmit Frame Buffer to the data
5020 * portion of the received TX Forward frame, making
5021 * sure to skip over the Vector Code (vc) and Vector
5022 * length (vl).
5023 */
5024 fcb->bdb_ptr->trc_data_block_ptr = TRC_POINTER((__u32)rmf
5025 + sizeof(MAC_HEADER) + 2);
5026 fcb->bdb_ptr->data_block_ptr = (__u16 *)((__u32)rmf
5027 + sizeof(MAC_HEADER) + 2);
5028
5029 fcb->frame_length = rmf->vl - 4 - 2;
5030 fcb->bdb_ptr->buffer_length = rmf->vl - 4 - 2;
5031
5032 if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE)))
5033 return (err);
5034
5035 /* Wait for Transmit to Complete */
5036 for(i = 0; i < 10000; i++)
5037 {
5038 if(fcb->frame_status & FCB_COMMAND_DONE)
5039 break;
5040 mdelay(1);
5041 }
5042
5043 /* Check if GOOD frame Tx'ed */
5044 if(!(fcb->frame_status & FCB_COMMAND_DONE))
5045 {
5046 if((err = smctr_issue_resume_tx_fcb_cmd(dev, MAC_QUEUE)))
5047 return (err);
5048
5049 for(i = 0; i < 10000; i++)
5050 {
5051 if(fcb->frame_status & FCB_COMMAND_DONE)
5052 break;
5053 mdelay(1);
5054 }
5055
5056 if(!(fcb->frame_status & FCB_COMMAND_DONE))
5057 return (HARDWARE_FAILED);
5058 }
5059
5060 *tx_fstatus = fcb->frame_status;
5061
5062 return (A_FRAME_WAS_FORWARDED);
5063 }
5064
smctr_set_auth_access_pri(struct net_device * dev,MAC_SUB_VECTOR * rsv)5065 static int smctr_set_auth_access_pri(struct net_device *dev,
5066 MAC_SUB_VECTOR *rsv)
5067 {
5068 struct net_local *tp = netdev_priv(dev);
5069
5070 if(rsv->svl != S_AUTHORIZED_ACCESS_PRIORITY)
5071 return (E_SUB_VECTOR_LENGTH_ERROR);
5072
5073 tp->authorized_access_priority = (rsv->svv[0] << 8 | rsv->svv[1]);
5074
5075 return (POSITIVE_ACK);
5076 }
5077
smctr_set_auth_funct_class(struct net_device * dev,MAC_SUB_VECTOR * rsv)5078 static int smctr_set_auth_funct_class(struct net_device *dev,
5079 MAC_SUB_VECTOR *rsv)
5080 {
5081 struct net_local *tp = netdev_priv(dev);
5082
5083 if(rsv->svl != S_AUTHORIZED_FUNCTION_CLASS)
5084 return (E_SUB_VECTOR_LENGTH_ERROR);
5085
5086 tp->authorized_function_classes = (rsv->svv[0] << 8 | rsv->svv[1]);
5087
5088 return (POSITIVE_ACK);
5089 }
5090
smctr_set_corr(struct net_device * dev,MAC_SUB_VECTOR * rsv,__u16 * correlator)5091 static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv,
5092 __u16 *correlator)
5093 {
5094 if(rsv->svl != S_CORRELATOR)
5095 return (E_SUB_VECTOR_LENGTH_ERROR);
5096
5097 *correlator = (rsv->svv[0] << 8 | rsv->svv[1]);
5098
5099 return (POSITIVE_ACK);
5100 }
5101
smctr_set_error_timer_value(struct net_device * dev,MAC_SUB_VECTOR * rsv)5102 static int smctr_set_error_timer_value(struct net_device *dev,
5103 MAC_SUB_VECTOR *rsv)
5104 {
5105 __u16 err_tval;
5106 int err;
5107
5108 if(rsv->svl != S_ERROR_TIMER_VALUE)
5109 return (E_SUB_VECTOR_LENGTH_ERROR);
5110
5111 err_tval = (rsv->svv[0] << 8 | rsv->svv[1])*10;
5112
5113 smctr_issue_write_word_cmd(dev, RW_TER_THRESHOLD, &err_tval);
5114
5115 if((err = smctr_wait_cmd(dev)))
5116 return (err);
5117
5118 return (POSITIVE_ACK);
5119 }
5120
smctr_set_frame_forward(struct net_device * dev,MAC_SUB_VECTOR * rsv,__u8 dc_sc)5121 static int smctr_set_frame_forward(struct net_device *dev,
5122 MAC_SUB_VECTOR *rsv, __u8 dc_sc)
5123 {
5124 if((rsv->svl < 2) || (rsv->svl > S_FRAME_FORWARD))
5125 return (E_SUB_VECTOR_LENGTH_ERROR);
5126
5127 if((dc_sc & DC_MASK) != DC_CRS)
5128 {
5129 if(rsv->svl >= 2 && rsv->svl < 20)
5130 return (E_TRANSMIT_FORWARD_INVALID);
5131
5132 if((rsv->svv[0] != 0) || (rsv->svv[1] != 0))
5133 return (E_TRANSMIT_FORWARD_INVALID);
5134 }
5135
5136 return (POSITIVE_ACK);
5137 }
5138
smctr_set_local_ring_num(struct net_device * dev,MAC_SUB_VECTOR * rsv)5139 static int smctr_set_local_ring_num(struct net_device *dev,
5140 MAC_SUB_VECTOR *rsv)
5141 {
5142 struct net_local *tp = netdev_priv(dev);
5143
5144 if(rsv->svl != S_LOCAL_RING_NUMBER)
5145 return (E_SUB_VECTOR_LENGTH_ERROR);
5146
5147 if(tp->ptr_local_ring_num)
5148 *(__u16 *)(tp->ptr_local_ring_num)
5149 = (rsv->svv[0] << 8 | rsv->svv[1]);
5150
5151 return (POSITIVE_ACK);
5152 }
5153
smctr_set_ctrl_attention(struct net_device * dev)5154 static unsigned short smctr_set_ctrl_attention(struct net_device *dev)
5155 {
5156 struct net_local *tp = netdev_priv(dev);
5157 int ioaddr = dev->base_addr;
5158
5159 if(tp->bic_type == BIC_585_CHIP)
5160 outb((tp->trc_mask | HWR_CA), ioaddr + HWR);
5161 else
5162 {
5163 outb((tp->trc_mask | CSR_CA), ioaddr + CSR);
5164 outb(tp->trc_mask, ioaddr + CSR);
5165 }
5166
5167 return (0);
5168 }
5169
smctr_set_multicast_list(struct net_device * dev)5170 static void smctr_set_multicast_list(struct net_device *dev)
5171 {
5172 if(smctr_debug > 10)
5173 printk(KERN_DEBUG "%s: smctr_set_multicast_list\n", dev->name);
5174
5175 return;
5176 }
5177
smctr_set_page(struct net_device * dev,__u8 * buf)5178 static int smctr_set_page(struct net_device *dev, __u8 *buf)
5179 {
5180 struct net_local *tp = netdev_priv(dev);
5181 __u8 amask;
5182 __u32 tptr;
5183
5184 tptr = (__u32)buf - (__u32)tp->ram_access;
5185 amask = (__u8)((tptr & PR_PAGE_MASK) >> 8);
5186 outb(amask, dev->base_addr + PR);
5187
5188 return (0);
5189 }
5190
smctr_set_phy_drop(struct net_device * dev,MAC_SUB_VECTOR * rsv)5191 static int smctr_set_phy_drop(struct net_device *dev, MAC_SUB_VECTOR *rsv)
5192 {
5193 int err;
5194
5195 if(rsv->svl != S_PHYSICAL_DROP)
5196 return (E_SUB_VECTOR_LENGTH_ERROR);
5197
5198 smctr_issue_write_byte_cmd(dev, RW_PHYSICAL_DROP_NUMBER, &rsv->svv[0]);
5199 if((err = smctr_wait_cmd(dev)))
5200 return (err);
5201
5202 return (POSITIVE_ACK);
5203 }
5204
5205 /* Reset the ring speed to the opposite of what it was. This auto-pilot
5206 * mode requires a complete reset and re-init of the adapter.
5207 */
smctr_set_ring_speed(struct net_device * dev)5208 static int smctr_set_ring_speed(struct net_device *dev)
5209 {
5210 struct net_local *tp = netdev_priv(dev);
5211 int err;
5212
5213 if(tp->media_type == MEDIA_UTP_16)
5214 tp->media_type = MEDIA_UTP_4;
5215 else
5216 tp->media_type = MEDIA_UTP_16;
5217
5218 smctr_enable_16bit(dev);
5219
5220 /* Re-Initialize adapter's internal registers */
5221 smctr_reset_adapter(dev);
5222
5223 if((err = smctr_init_card_real(dev)))
5224 return (err);
5225
5226 smctr_enable_bic_int(dev);
5227
5228 if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK)))
5229 return (err);
5230
5231 smctr_disable_16bit(dev);
5232
5233 return (0);
5234 }
5235
smctr_set_rx_look_ahead(struct net_device * dev)5236 static int smctr_set_rx_look_ahead(struct net_device *dev)
5237 {
5238 struct net_local *tp = netdev_priv(dev);
5239 __u16 sword, rword;
5240
5241 if(smctr_debug > 10)
5242 printk(KERN_DEBUG "%s: smctr_set_rx_look_ahead_flag\n", dev->name);
5243
5244 tp->adapter_flags &= ~(FORCED_16BIT_MODE);
5245 tp->adapter_flags |= RX_VALID_LOOKAHEAD;
5246
5247 if(tp->adapter_bus == BUS_ISA16_TYPE)
5248 {
5249 sword = *((__u16 *)(tp->ram_access));
5250 *((__u16 *)(tp->ram_access)) = 0x1234;
5251
5252 smctr_disable_16bit(dev);
5253 rword = *((__u16 *)(tp->ram_access));
5254 smctr_enable_16bit(dev);
5255
5256 if(rword != 0x1234)
5257 tp->adapter_flags |= FORCED_16BIT_MODE;
5258
5259 *((__u16 *)(tp->ram_access)) = sword;
5260 }
5261
5262 return (0);
5263 }
5264
smctr_set_trc_reset(int ioaddr)5265 static int smctr_set_trc_reset(int ioaddr)
5266 {
5267 __u8 r;
5268
5269 r = inb(ioaddr + MSR);
5270 outb(MSR_RST | r, ioaddr + MSR);
5271
5272 return (0);
5273 }
5274
5275 /*
5276 * This function can be called if the adapter is busy or not.
5277 */
smctr_setup_single_cmd(struct net_device * dev,__u16 command,__u16 subcommand)5278 static int smctr_setup_single_cmd(struct net_device *dev,
5279 __u16 command, __u16 subcommand)
5280 {
5281 struct net_local *tp = netdev_priv(dev);
5282 unsigned int err;
5283
5284 if(smctr_debug > 10)
5285 printk(KERN_DEBUG "%s: smctr_setup_single_cmd\n", dev->name);
5286
5287 if((err = smctr_wait_while_cbusy(dev)))
5288 return (err);
5289
5290 if((err = (unsigned int)smctr_wait_cmd(dev)))
5291 return (err);
5292
5293 tp->acb_head->cmd_done_status = 0;
5294 tp->acb_head->cmd = command;
5295 tp->acb_head->subcmd = subcommand;
5296
5297 err = smctr_issue_resume_acb_cmd(dev);
5298
5299 return (err);
5300 }
5301
5302 /*
5303 * This function can not be called with the adapter busy.
5304 */
smctr_setup_single_cmd_w_data(struct net_device * dev,__u16 command,__u16 subcommand)5305 static int smctr_setup_single_cmd_w_data(struct net_device *dev,
5306 __u16 command, __u16 subcommand)
5307 {
5308 struct net_local *tp = netdev_priv(dev);
5309
5310 tp->acb_head->cmd_done_status = ACB_COMMAND_NOT_DONE;
5311 tp->acb_head->cmd = command;
5312 tp->acb_head->subcmd = subcommand;
5313 tp->acb_head->data_offset_lo
5314 = (__u16)TRC_POINTER(tp->misc_command_data);
5315
5316 return(smctr_issue_resume_acb_cmd(dev));
5317 }
5318
smctr_malloc(struct net_device * dev,__u16 size)5319 static char *smctr_malloc(struct net_device *dev, __u16 size)
5320 {
5321 struct net_local *tp = netdev_priv(dev);
5322 char *m;
5323
5324 m = (char *)(tp->ram_access + tp->sh_mem_used);
5325 tp->sh_mem_used += (__u32)size;
5326
5327 return (m);
5328 }
5329
smctr_status_chg(struct net_device * dev)5330 static int smctr_status_chg(struct net_device *dev)
5331 {
5332 struct net_local *tp = netdev_priv(dev);
5333
5334 if(smctr_debug > 10)
5335 printk(KERN_DEBUG "%s: smctr_status_chg\n", dev->name);
5336
5337 switch(tp->status)
5338 {
5339 case OPEN:
5340 break;
5341
5342 case CLOSED:
5343 break;
5344
5345 /* Interrupt driven open() completion. XXX */
5346 case INITIALIZED:
5347 tp->group_address_0 = 0;
5348 tp->group_address[0] = 0;
5349 tp->group_address[1] = 0;
5350 tp->functional_address_0 = 0;
5351 tp->functional_address[0] = 0;
5352 tp->functional_address[1] = 0;
5353 smctr_open_tr(dev);
5354 break;
5355
5356 default:
5357 printk(KERN_INFO "%s: status change unknown %x\n",
5358 dev->name, tp->status);
5359 break;
5360 }
5361
5362 return (0);
5363 }
5364
smctr_trc_send_packet(struct net_device * dev,FCBlock * fcb,__u16 queue)5365 static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb,
5366 __u16 queue)
5367 {
5368 struct net_local *tp = netdev_priv(dev);
5369 int err = 0;
5370
5371 if(smctr_debug > 10)
5372 printk(KERN_DEBUG "%s: smctr_trc_send_packet\n", dev->name);
5373
5374 fcb->info = FCB_CHAIN_END | FCB_ENABLE_TFS;
5375 if(tp->num_tx_fcbs[queue] != 1)
5376 fcb->back_ptr->info = FCB_INTERRUPT_ENABLE | FCB_ENABLE_TFS;
5377
5378 if(tp->tx_queue_status[queue] == NOT_TRANSMITING)
5379 {
5380 tp->tx_queue_status[queue] = TRANSMITING;
5381 err = smctr_issue_resume_tx_fcb_cmd(dev, queue);
5382 }
5383
5384 return (err);
5385 }
5386
smctr_tx_complete(struct net_device * dev,__u16 queue)5387 static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue)
5388 {
5389 struct net_local *tp = netdev_priv(dev);
5390 __u16 status, err = 0;
5391 int cstatus;
5392
5393 if(smctr_debug > 10)
5394 printk(KERN_DEBUG "%s: smctr_tx_complete\n", dev->name);
5395
5396 while((status = tp->tx_fcb_end[queue]->frame_status) != SUCCESS)
5397 {
5398 if(status & 0x7e00 )
5399 {
5400 err = HARDWARE_FAILED;
5401 break;
5402 }
5403
5404 if((err = smctr_update_tx_chain(dev, tp->tx_fcb_end[queue],
5405 queue)) != SUCCESS)
5406 break;
5407
5408 smctr_disable_16bit(dev);
5409
5410 if(tp->mode_bits & UMAC)
5411 {
5412 if(!(status & (FCB_TX_STATUS_AR1 | FCB_TX_STATUS_AR2)))
5413 cstatus = NO_SUCH_DESTINATION;
5414 else
5415 {
5416 if(!(status & (FCB_TX_STATUS_CR1 | FCB_TX_STATUS_CR2)))
5417 cstatus = DEST_OUT_OF_RESOURCES;
5418 else
5419 {
5420 if(status & FCB_TX_STATUS_E)
5421 cstatus = MAX_COLLISIONS;
5422 else
5423 cstatus = SUCCESS;
5424 }
5425 }
5426 }
5427 else
5428 cstatus = SUCCESS;
5429
5430 if(queue == BUG_QUEUE)
5431 err = SUCCESS;
5432
5433 smctr_enable_16bit(dev);
5434 if(err != SUCCESS)
5435 break;
5436 }
5437
5438 return (err);
5439 }
5440
smctr_tx_move_frame(struct net_device * dev,struct sk_buff * skb,__u8 * pbuff,unsigned int bytes)5441 static unsigned short smctr_tx_move_frame(struct net_device *dev,
5442 struct sk_buff *skb, __u8 *pbuff, unsigned int bytes)
5443 {
5444 struct net_local *tp = netdev_priv(dev);
5445 unsigned int ram_usable;
5446 __u32 flen, len, offset = 0;
5447 __u8 *frag, *page;
5448
5449 if(smctr_debug > 10)
5450 printk(KERN_DEBUG "%s: smctr_tx_move_frame\n", dev->name);
5451
5452 ram_usable = ((unsigned int)tp->ram_usable) << 10;
5453 frag = skb->data;
5454 flen = skb->len;
5455
5456 while(flen > 0 && bytes > 0)
5457 {
5458 smctr_set_page(dev, pbuff);
5459
5460 offset = SMC_PAGE_OFFSET(pbuff);
5461
5462 if(offset + flen > ram_usable)
5463 len = ram_usable - offset;
5464 else
5465 len = flen;
5466
5467 if(len > bytes)
5468 len = bytes;
5469
5470 page = (char *) (offset + tp->ram_access);
5471 memcpy(page, frag, len);
5472
5473 flen -=len;
5474 bytes -= len;
5475 frag += len;
5476 pbuff += len;
5477 }
5478
5479 return (0);
5480 }
5481
5482 /* Update the error statistic counters for this adapter. */
smctr_update_err_stats(struct net_device * dev)5483 static int smctr_update_err_stats(struct net_device *dev)
5484 {
5485 struct net_local *tp = netdev_priv(dev);
5486 struct tr_statistics *tstat = &tp->MacStat;
5487
5488 if(tstat->internal_errors)
5489 tstat->internal_errors
5490 += *(tp->misc_command_data + 0) & 0x00ff;
5491
5492 if(tstat->line_errors)
5493 tstat->line_errors += *(tp->misc_command_data + 0) >> 8;
5494
5495 if(tstat->A_C_errors)
5496 tstat->A_C_errors += *(tp->misc_command_data + 1) & 0x00ff;
5497
5498 if(tstat->burst_errors)
5499 tstat->burst_errors += *(tp->misc_command_data + 1) >> 8;
5500
5501 if(tstat->abort_delimiters)
5502 tstat->abort_delimiters += *(tp->misc_command_data + 2) >> 8;
5503
5504 if(tstat->recv_congest_count)
5505 tstat->recv_congest_count
5506 += *(tp->misc_command_data + 3) & 0x00ff;
5507
5508 if(tstat->lost_frames)
5509 tstat->lost_frames
5510 += *(tp->misc_command_data + 3) >> 8;
5511
5512 if(tstat->frequency_errors)
5513 tstat->frequency_errors += *(tp->misc_command_data + 4) & 0x00ff;
5514
5515 if(tstat->frame_copied_errors)
5516 tstat->frame_copied_errors
5517 += *(tp->misc_command_data + 4) >> 8;
5518
5519 if(tstat->token_errors)
5520 tstat->token_errors += *(tp->misc_command_data + 5) >> 8;
5521
5522 return (0);
5523 }
5524
smctr_update_rx_chain(struct net_device * dev,__u16 queue)5525 static int smctr_update_rx_chain(struct net_device *dev, __u16 queue)
5526 {
5527 struct net_local *tp = netdev_priv(dev);
5528 FCBlock *fcb;
5529 BDBlock *bdb;
5530 __u16 size, len;
5531
5532 fcb = tp->rx_fcb_curr[queue];
5533 len = fcb->frame_length;
5534
5535 fcb->frame_status = 0;
5536 fcb->info = FCB_CHAIN_END;
5537 fcb->back_ptr->info = FCB_WARNING;
5538
5539 tp->rx_fcb_curr[queue] = tp->rx_fcb_curr[queue]->next_ptr;
5540
5541 /* update RX BDBs */
5542 size = (len >> RX_BDB_SIZE_SHIFT);
5543 if(len & RX_DATA_BUFFER_SIZE_MASK)
5544 size += sizeof(BDBlock);
5545 size &= (~RX_BDB_SIZE_MASK);
5546
5547 /* check if wrap around */
5548 bdb = (BDBlock *)((__u32)(tp->rx_bdb_curr[queue]) + (__u32)(size));
5549 if((__u32)bdb >= (__u32)tp->rx_bdb_end[queue])
5550 {
5551 bdb = (BDBlock *)((__u32)(tp->rx_bdb_head[queue])
5552 + (__u32)(bdb) - (__u32)(tp->rx_bdb_end[queue]));
5553 }
5554
5555 bdb->back_ptr->info = BDB_CHAIN_END;
5556 tp->rx_bdb_curr[queue]->back_ptr->info = BDB_NOT_CHAIN_END;
5557 tp->rx_bdb_curr[queue] = bdb;
5558
5559 return (0);
5560 }
5561
smctr_update_tx_chain(struct net_device * dev,FCBlock * fcb,__u16 queue)5562 static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb,
5563 __u16 queue)
5564 {
5565 struct net_local *tp = netdev_priv(dev);
5566
5567 if(smctr_debug > 20)
5568 printk(KERN_DEBUG "smctr_update_tx_chain\n");
5569
5570 if(tp->num_tx_fcbs_used[queue] <= 0)
5571 return (HARDWARE_FAILED);
5572 else
5573 {
5574 if(tp->tx_buff_used[queue] < fcb->memory_alloc)
5575 {
5576 tp->tx_buff_used[queue] = 0;
5577 return (HARDWARE_FAILED);
5578 }
5579
5580 tp->tx_buff_used[queue] -= fcb->memory_alloc;
5581
5582 /* if all transmit buffer are cleared
5583 * need to set the tx_buff_curr[] to tx_buff_head[]
5584 * otherwise, tx buffer will be segregate and cannot
5585 * accommodate and buffer greater than (curr - head) and
5586 * (end - curr) since we do not allow wrap around allocation.
5587 */
5588 if(tp->tx_buff_used[queue] == 0)
5589 tp->tx_buff_curr[queue] = tp->tx_buff_head[queue];
5590
5591 tp->num_tx_fcbs_used[queue]--;
5592 fcb->frame_status = 0;
5593 tp->tx_fcb_end[queue] = fcb->next_ptr;
5594 netif_wake_queue(dev);
5595 return (0);
5596 }
5597 }
5598
smctr_wait_cmd(struct net_device * dev)5599 static int smctr_wait_cmd(struct net_device *dev)
5600 {
5601 struct net_local *tp = netdev_priv(dev);
5602 unsigned int loop_count = 0x20000;
5603
5604 if(smctr_debug > 10)
5605 printk(KERN_DEBUG "%s: smctr_wait_cmd\n", dev->name);
5606
5607 while(loop_count)
5608 {
5609 if(tp->acb_head->cmd_done_status & ACB_COMMAND_DONE)
5610 break;
5611 udelay(1);
5612 loop_count--;
5613 }
5614
5615 if(loop_count == 0)
5616 return(HARDWARE_FAILED);
5617
5618 if(tp->acb_head->cmd_done_status & 0xff)
5619 return(HARDWARE_FAILED);
5620
5621 return (0);
5622 }
5623
smctr_wait_while_cbusy(struct net_device * dev)5624 static int smctr_wait_while_cbusy(struct net_device *dev)
5625 {
5626 struct net_local *tp = netdev_priv(dev);
5627 unsigned int timeout = 0x20000;
5628 int ioaddr = dev->base_addr;
5629 __u8 r;
5630
5631 if(tp->bic_type == BIC_585_CHIP)
5632 {
5633 while(timeout)
5634 {
5635 r = inb(ioaddr + HWR);
5636 if((r & HWR_CBUSY) == 0)
5637 break;
5638 timeout--;
5639 }
5640 }
5641 else
5642 {
5643 while(timeout)
5644 {
5645 r = inb(ioaddr + CSR);
5646 if((r & CSR_CBUSY) == 0)
5647 break;
5648 timeout--;
5649 }
5650 }
5651
5652 if(timeout)
5653 return (0);
5654 else
5655 return (HARDWARE_FAILED);
5656 }
5657
5658 #ifdef MODULE
5659
5660 static struct net_device* dev_smctr[SMCTR_MAX_ADAPTERS];
5661 static int io[SMCTR_MAX_ADAPTERS];
5662 static int irq[SMCTR_MAX_ADAPTERS];
5663
5664 MODULE_LICENSE("GPL");
5665 MODULE_FIRMWARE("tr_smctr.bin");
5666
5667 module_param_array(io, int, NULL, 0);
5668 module_param_array(irq, int, NULL, 0);
5669 module_param(ringspeed, int, 0);
5670
setup_card(int n)5671 static struct net_device * __init setup_card(int n)
5672 {
5673 struct net_device *dev = alloc_trdev(sizeof(struct net_local));
5674 int err;
5675
5676 if (!dev)
5677 return ERR_PTR(-ENOMEM);
5678
5679 dev->irq = irq[n];
5680 err = smctr_probe1(dev, io[n]);
5681 if (err)
5682 goto out;
5683
5684 err = register_netdev(dev);
5685 if (err)
5686 goto out1;
5687 return dev;
5688 out1:
5689 #ifdef CONFIG_MCA_LEGACY
5690 { struct net_local *tp = netdev_priv(dev);
5691 if (tp->slot_num)
5692 mca_mark_as_unused(tp->slot_num);
5693 }
5694 #endif
5695 release_region(dev->base_addr, SMCTR_IO_EXTENT);
5696 free_irq(dev->irq, dev);
5697 out:
5698 free_netdev(dev);
5699 return ERR_PTR(err);
5700 }
5701
init_module(void)5702 int __init init_module(void)
5703 {
5704 int i, found = 0;
5705 struct net_device *dev;
5706
5707 for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) {
5708 dev = io[0]? setup_card(i) : smctr_probe(-1);
5709 if (!IS_ERR(dev)) {
5710 ++found;
5711 dev_smctr[i] = dev;
5712 }
5713 }
5714
5715 return found ? 0 : -ENODEV;
5716 }
5717
cleanup_module(void)5718 void __exit cleanup_module(void)
5719 {
5720 int i;
5721
5722 for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) {
5723 struct net_device *dev = dev_smctr[i];
5724
5725 if (dev) {
5726
5727 unregister_netdev(dev);
5728 #ifdef CONFIG_MCA_LEGACY
5729 { struct net_local *tp = netdev_priv(dev);
5730 if (tp->slot_num)
5731 mca_mark_as_unused(tp->slot_num);
5732 }
5733 #endif
5734 release_region(dev->base_addr, SMCTR_IO_EXTENT);
5735 if (dev->irq)
5736 free_irq(dev->irq, dev);
5737
5738 free_netdev(dev);
5739 }
5740 }
5741 }
5742 #endif /* MODULE */
5743