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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * (C)Copyright 1998,1999 SysKonnect, | |
4 | * a business unit of Schneider & Koch & Co. Datensysteme GmbH. | |
5 | * | |
6 | * See the file "skfddi.c" for further information. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * The information in this file is provided "AS IS" without warranty. | |
14 | * | |
15 | ******************************************************************************/ | |
16 | ||
17 | #ifndef lint | |
18 | static char const ID_sccs[] = "@(#)hwmtm.c 1.40 99/05/31 (C) SK" ; | |
19 | #endif | |
20 | ||
21 | #define HWMTM | |
22 | ||
23 | #ifndef FDDI | |
24 | #define FDDI | |
25 | #endif | |
26 | ||
27 | #include "h/types.h" | |
28 | #include "h/fddi.h" | |
29 | #include "h/smc.h" | |
30 | #include "h/supern_2.h" | |
31 | #include "h/skfbiinc.h" | |
32 | ||
33 | /* | |
34 | ------------------------------------------------------------- | |
35 | DOCUMENTATION | |
36 | ------------------------------------------------------------- | |
37 | BEGIN_MANUAL_ENTRY(DOCUMENTATION) | |
38 | ||
39 | T B D | |
40 | ||
41 | END_MANUAL_ENTRY | |
42 | */ | |
43 | /* | |
44 | ------------------------------------------------------------- | |
45 | LOCAL VARIABLES: | |
46 | ------------------------------------------------------------- | |
47 | */ | |
48 | #ifdef COMMON_MB_POOL | |
49 | static SMbuf *mb_start = 0 ; | |
50 | static SMbuf *mb_free = 0 ; | |
51 | static int mb_init = FALSE ; | |
52 | static int call_count = 0 ; | |
53 | #endif | |
54 | ||
55 | /* | |
56 | ------------------------------------------------------------- | |
57 | EXTERNE VARIABLES: | |
58 | ------------------------------------------------------------- | |
59 | */ | |
60 | ||
61 | #ifdef DEBUG | |
62 | #ifndef DEBUG_BRD | |
63 | extern struct smt_debug debug ; | |
64 | #endif | |
65 | #endif | |
66 | ||
67 | #ifdef NDIS_OS2 | |
68 | extern u_char offDepth ; | |
69 | extern u_char force_irq_pending ; | |
70 | #endif | |
71 | ||
72 | /* | |
73 | ------------------------------------------------------------- | |
74 | LOCAL FUNCTIONS: | |
75 | ------------------------------------------------------------- | |
76 | */ | |
77 | ||
78 | static void queue_llc_rx(struct s_smc *smc, SMbuf *mb); | |
79 | static void smt_to_llc(struct s_smc *smc, SMbuf *mb); | |
80 | static void init_txd_ring(struct s_smc *smc); | |
81 | static void init_rxd_ring(struct s_smc *smc); | |
82 | static void queue_txd_mb(struct s_smc *smc, SMbuf *mb); | |
83 | static u_long init_descr_ring(struct s_smc *smc, union s_fp_descr volatile *start, | |
84 | int count); | |
85 | static u_long repair_txd_ring(struct s_smc *smc, struct s_smt_tx_queue *queue); | |
86 | static u_long repair_rxd_ring(struct s_smc *smc, struct s_smt_rx_queue *queue); | |
87 | static SMbuf* get_llc_rx(struct s_smc *smc); | |
88 | static SMbuf* get_txd_mb(struct s_smc *smc); | |
7aa55fce | 89 | static void mac_drv_clear_txd(struct s_smc *smc); |
1da177e4 LT |
90 | |
91 | /* | |
92 | ------------------------------------------------------------- | |
93 | EXTERNAL FUNCTIONS: | |
94 | ------------------------------------------------------------- | |
95 | */ | |
96 | /* The external SMT functions are listed in cmtdef.h */ | |
97 | ||
98 | extern void* mac_drv_get_space(struct s_smc *smc, unsigned int size); | |
99 | extern void* mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size); | |
100 | extern void init_board(struct s_smc *smc, u_char *mac_addr); | |
101 | extern void mac_drv_fill_rxd(struct s_smc *smc); | |
102 | extern void plc1_irq(struct s_smc *smc); | |
103 | extern void mac_drv_tx_complete(struct s_smc *smc, | |
104 | volatile struct s_smt_fp_txd *txd); | |
105 | extern void plc2_irq(struct s_smc *smc); | |
106 | extern void mac1_irq(struct s_smc *smc, u_short stu, u_short stl); | |
107 | extern void mac2_irq(struct s_smc *smc, u_short code_s2u, u_short code_s2l); | |
108 | extern void mac3_irq(struct s_smc *smc, u_short code_s3u, u_short code_s3l); | |
109 | extern void timer_irq(struct s_smc *smc); | |
110 | extern void mac_drv_rx_complete(struct s_smc *smc, | |
111 | volatile struct s_smt_fp_rxd *rxd, | |
112 | int frag_count, int len); | |
113 | extern void mac_drv_requeue_rxd(struct s_smc *smc, | |
114 | volatile struct s_smt_fp_rxd *rxd, | |
115 | int frag_count); | |
116 | extern void init_plc(struct s_smc *smc); | |
117 | extern void mac_drv_clear_rxd(struct s_smc *smc, | |
118 | volatile struct s_smt_fp_rxd *rxd, int frag_count); | |
119 | ||
120 | #ifdef USE_OS_CPY | |
121 | extern void hwm_cpy_rxd2mb(void); | |
122 | extern void hwm_cpy_txd2mb(void); | |
123 | #endif | |
124 | ||
125 | #ifdef ALL_RX_COMPLETE | |
126 | extern void mac_drv_all_receives_complete(void); | |
127 | #endif | |
128 | ||
129 | extern u_long mac_drv_virt2phys(struct s_smc *smc, void *virt); | |
130 | extern u_long dma_master(struct s_smc *smc, void *virt, int len, int flag); | |
131 | ||
132 | #ifdef NDIS_OS2 | |
133 | extern void post_proc(void); | |
134 | #else | |
135 | extern void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, | |
136 | int flag); | |
137 | #endif | |
138 | ||
139 | extern int init_fplus(struct s_smc *smc); | |
140 | extern int mac_drv_rx_init(struct s_smc *smc, int len, int fc, char *look_ahead, | |
141 | int la_len); | |
142 | ||
143 | /* | |
144 | ------------------------------------------------------------- | |
145 | PUBLIC FUNCTIONS: | |
146 | ------------------------------------------------------------- | |
147 | */ | |
148 | void process_receive(struct s_smc *smc); | |
149 | void fddi_isr(struct s_smc *smc); | |
1da177e4 LT |
150 | void smt_free_mbuf(struct s_smc *smc, SMbuf *mb); |
151 | void init_driver_fplus(struct s_smc *smc); | |
152 | void mac_drv_rx_mode(struct s_smc *smc, int mode); | |
153 | void init_fddi_driver(struct s_smc *smc, u_char *mac_addr); | |
154 | void mac_drv_clear_tx_queue(struct s_smc *smc); | |
155 | void mac_drv_clear_rx_queue(struct s_smc *smc); | |
156 | void hwm_tx_frag(struct s_smc *smc, char far *virt, u_long phys, int len, | |
157 | int frame_status); | |
158 | void hwm_rx_frag(struct s_smc *smc, char far *virt, u_long phys, int len, | |
159 | int frame_status); | |
160 | ||
1da177e4 LT |
161 | int mac_drv_init(struct s_smc *smc); |
162 | int hwm_tx_init(struct s_smc *smc, u_char fc, int frag_count, int frame_len, | |
163 | int frame_status); | |
164 | ||
165 | u_int mac_drv_check_space(void); | |
166 | ||
167 | SMbuf* smt_get_mbuf(struct s_smc *smc); | |
168 | ||
169 | #ifdef DEBUG | |
170 | void mac_drv_debug_lev(void); | |
171 | #endif | |
172 | ||
173 | /* | |
174 | ------------------------------------------------------------- | |
175 | MACROS: | |
176 | ------------------------------------------------------------- | |
177 | */ | |
178 | #ifndef UNUSED | |
179 | #ifdef lint | |
180 | #define UNUSED(x) (x) = (x) | |
181 | #else | |
182 | #define UNUSED(x) | |
183 | #endif | |
184 | #endif | |
185 | ||
186 | #ifdef USE_CAN_ADDR | |
187 | #define MA smc->hw.fddi_canon_addr.a | |
188 | #define GROUP_ADDR_BIT 0x01 | |
189 | #else | |
190 | #define MA smc->hw.fddi_home_addr.a | |
191 | #define GROUP_ADDR_BIT 0x80 | |
192 | #endif | |
193 | ||
194 | #define RXD_TXD_COUNT (HWM_ASYNC_TXD_COUNT+HWM_SYNC_TXD_COUNT+\ | |
195 | SMT_R1_RXD_COUNT+SMT_R2_RXD_COUNT) | |
196 | ||
197 | #ifdef MB_OUTSIDE_SMC | |
198 | #define EXT_VIRT_MEM ((RXD_TXD_COUNT+1)*sizeof(struct s_smt_fp_txd) +\ | |
199 | MAX_MBUF*sizeof(SMbuf)) | |
200 | #define EXT_VIRT_MEM_2 ((RXD_TXD_COUNT+1)*sizeof(struct s_smt_fp_txd)) | |
201 | #else | |
202 | #define EXT_VIRT_MEM ((RXD_TXD_COUNT+1)*sizeof(struct s_smt_fp_txd)) | |
203 | #endif | |
204 | ||
205 | /* | |
206 | * define critical read for 16 Bit drivers | |
207 | */ | |
208 | #if defined(NDIS_OS2) || defined(ODI2) | |
209 | #define CR_READ(var) ((var) & 0xffff0000 | ((var) & 0xffff)) | |
210 | #else | |
211 | #define CR_READ(var) (u_long)(var) | |
212 | #endif | |
213 | ||
214 | #define IMASK_SLOW (IS_PLINT1 | IS_PLINT2 | IS_TIMINT | IS_TOKEN | \ | |
215 | IS_MINTR1 | IS_MINTR2 | IS_MINTR3 | IS_R1_P | \ | |
216 | IS_R1_C | IS_XA_C | IS_XS_C) | |
217 | ||
218 | /* | |
219 | ------------------------------------------------------------- | |
220 | INIT- AND SMT FUNCTIONS: | |
221 | ------------------------------------------------------------- | |
222 | */ | |
223 | ||
224 | ||
225 | /* | |
226 | * BEGIN_MANUAL_ENTRY(mac_drv_check_space) | |
227 | * u_int mac_drv_check_space() | |
228 | * | |
229 | * function DOWNCALL (drvsr.c) | |
230 | * This function calculates the needed non virtual | |
231 | * memory for MBufs, RxD and TxD descriptors etc. | |
232 | * needed by the driver. | |
233 | * | |
234 | * return u_int memory in bytes | |
235 | * | |
236 | * END_MANUAL_ENTRY | |
237 | */ | |
238 | u_int mac_drv_check_space(void) | |
239 | { | |
240 | #ifdef MB_OUTSIDE_SMC | |
241 | #ifdef COMMON_MB_POOL | |
242 | call_count++ ; | |
243 | if (call_count == 1) { | |
244 | return(EXT_VIRT_MEM) ; | |
245 | } | |
246 | else { | |
247 | return(EXT_VIRT_MEM_2) ; | |
248 | } | |
249 | #else | |
250 | return (EXT_VIRT_MEM) ; | |
251 | #endif | |
252 | #else | |
253 | return (0) ; | |
254 | #endif | |
255 | } | |
256 | ||
257 | /* | |
258 | * BEGIN_MANUAL_ENTRY(mac_drv_init) | |
259 | * void mac_drv_init(smc) | |
260 | * | |
261 | * function DOWNCALL (drvsr.c) | |
262 | * In this function the hardware module allocates it's | |
263 | * memory. | |
264 | * The operating system dependent module should call | |
265 | * mac_drv_init once, after the adatper is detected. | |
266 | * END_MANUAL_ENTRY | |
267 | */ | |
268 | int mac_drv_init(struct s_smc *smc) | |
269 | { | |
270 | if (sizeof(struct s_smt_fp_rxd) % 16) { | |
271 | SMT_PANIC(smc,HWM_E0001,HWM_E0001_MSG) ; | |
272 | } | |
273 | if (sizeof(struct s_smt_fp_txd) % 16) { | |
274 | SMT_PANIC(smc,HWM_E0002,HWM_E0002_MSG) ; | |
275 | } | |
276 | ||
277 | /* | |
278 | * get the required memory for the RxDs and TxDs | |
279 | */ | |
280 | if (!(smc->os.hwm.descr_p = (union s_fp_descr volatile *) | |
281 | mac_drv_get_desc_mem(smc,(u_int) | |
282 | (RXD_TXD_COUNT+1)*sizeof(struct s_smt_fp_txd)))) { | |
283 | return(1) ; /* no space the hwm modul can't work */ | |
284 | } | |
285 | ||
286 | /* | |
287 | * get the memory for the SMT MBufs | |
288 | */ | |
289 | #ifndef MB_OUTSIDE_SMC | |
290 | smc->os.hwm.mbuf_pool.mb_start=(SMbuf *)(&smc->os.hwm.mbuf_pool.mb[0]) ; | |
291 | #else | |
292 | #ifndef COMMON_MB_POOL | |
293 | if (!(smc->os.hwm.mbuf_pool.mb_start = (SMbuf *) mac_drv_get_space(smc, | |
294 | MAX_MBUF*sizeof(SMbuf)))) { | |
295 | return(1) ; /* no space the hwm modul can't work */ | |
296 | } | |
297 | #else | |
298 | if (!mb_start) { | |
299 | if (!(mb_start = (SMbuf *) mac_drv_get_space(smc, | |
300 | MAX_MBUF*sizeof(SMbuf)))) { | |
301 | return(1) ; /* no space the hwm modul can't work */ | |
302 | } | |
303 | } | |
304 | #endif | |
305 | #endif | |
306 | return (0) ; | |
307 | } | |
308 | ||
309 | /* | |
310 | * BEGIN_MANUAL_ENTRY(init_driver_fplus) | |
311 | * init_driver_fplus(smc) | |
312 | * | |
313 | * Sets hardware modul specific values for the mode register 2 | |
314 | * (e.g. the byte alignment for the received frames, the position of the | |
315 | * least significant byte etc.) | |
316 | * END_MANUAL_ENTRY | |
317 | */ | |
318 | void init_driver_fplus(struct s_smc *smc) | |
319 | { | |
320 | smc->hw.fp.mdr2init = FM_LSB | FM_BMMODE | FM_ENNPRQ | FM_ENHSRQ | 3 ; | |
321 | ||
322 | #ifdef PCI | |
323 | smc->hw.fp.mdr2init |= FM_CHKPAR | FM_PARITY ; | |
324 | #endif | |
325 | smc->hw.fp.mdr3init = FM_MENRQAUNLCK | FM_MENRS ; | |
326 | ||
327 | #ifdef USE_CAN_ADDR | |
328 | /* enable address bit swapping */ | |
329 | smc->hw.fp.frselreg_init = FM_ENXMTADSWAP | FM_ENRCVADSWAP ; | |
330 | #endif | |
331 | } | |
332 | ||
333 | static u_long init_descr_ring(struct s_smc *smc, | |
334 | union s_fp_descr volatile *start, | |
335 | int count) | |
336 | { | |
337 | int i ; | |
338 | union s_fp_descr volatile *d1 ; | |
339 | union s_fp_descr volatile *d2 ; | |
340 | u_long phys ; | |
341 | ||
342 | DB_GEN("descr ring starts at = %x ",(void *)start,0,3) ; | |
343 | for (i=count-1, d1=start; i ; i--) { | |
344 | d2 = d1 ; | |
345 | d1++ ; /* descr is owned by the host */ | |
346 | d2->r.rxd_rbctrl = AIX_REVERSE(BMU_CHECK) ; | |
347 | d2->r.rxd_next = &d1->r ; | |
348 | phys = mac_drv_virt2phys(smc,(void *)d1) ; | |
349 | d2->r.rxd_nrdadr = AIX_REVERSE(phys) ; | |
350 | } | |
351 | DB_GEN("descr ring ends at = %x ",(void *)d1,0,3) ; | |
352 | d1->r.rxd_rbctrl = AIX_REVERSE(BMU_CHECK) ; | |
353 | d1->r.rxd_next = &start->r ; | |
354 | phys = mac_drv_virt2phys(smc,(void *)start) ; | |
355 | d1->r.rxd_nrdadr = AIX_REVERSE(phys) ; | |
356 | ||
357 | for (i=count, d1=start; i ; i--) { | |
358 | DRV_BUF_FLUSH(&d1->r,DDI_DMA_SYNC_FORDEV) ; | |
359 | d1++; | |
360 | } | |
361 | return(phys) ; | |
362 | } | |
363 | ||
364 | static void init_txd_ring(struct s_smc *smc) | |
365 | { | |
366 | struct s_smt_fp_txd volatile *ds ; | |
367 | struct s_smt_tx_queue *queue ; | |
368 | u_long phys ; | |
369 | ||
370 | /* | |
371 | * initialize the transmit descriptors | |
372 | */ | |
373 | ds = (struct s_smt_fp_txd volatile *) ((char *)smc->os.hwm.descr_p + | |
374 | SMT_R1_RXD_COUNT*sizeof(struct s_smt_fp_rxd)) ; | |
375 | queue = smc->hw.fp.tx[QUEUE_A0] ; | |
376 | DB_GEN("Init async TxD ring, %d TxDs ",HWM_ASYNC_TXD_COUNT,0,3) ; | |
377 | (void)init_descr_ring(smc,(union s_fp_descr volatile *)ds, | |
378 | HWM_ASYNC_TXD_COUNT) ; | |
379 | phys = AIX_REVERSE(ds->txd_ntdadr) ; | |
380 | ds++ ; | |
381 | queue->tx_curr_put = queue->tx_curr_get = ds ; | |
382 | ds-- ; | |
383 | queue->tx_free = HWM_ASYNC_TXD_COUNT ; | |
384 | queue->tx_used = 0 ; | |
385 | outpd(ADDR(B5_XA_DA),phys) ; | |
386 | ||
387 | ds = (struct s_smt_fp_txd volatile *) ((char *)ds + | |
388 | HWM_ASYNC_TXD_COUNT*sizeof(struct s_smt_fp_txd)) ; | |
389 | queue = smc->hw.fp.tx[QUEUE_S] ; | |
390 | DB_GEN("Init sync TxD ring, %d TxDs ",HWM_SYNC_TXD_COUNT,0,3) ; | |
391 | (void)init_descr_ring(smc,(union s_fp_descr volatile *)ds, | |
392 | HWM_SYNC_TXD_COUNT) ; | |
393 | phys = AIX_REVERSE(ds->txd_ntdadr) ; | |
394 | ds++ ; | |
395 | queue->tx_curr_put = queue->tx_curr_get = ds ; | |
396 | queue->tx_free = HWM_SYNC_TXD_COUNT ; | |
397 | queue->tx_used = 0 ; | |
398 | outpd(ADDR(B5_XS_DA),phys) ; | |
399 | } | |
400 | ||
401 | static void init_rxd_ring(struct s_smc *smc) | |
402 | { | |
403 | struct s_smt_fp_rxd volatile *ds ; | |
404 | struct s_smt_rx_queue *queue ; | |
405 | u_long phys ; | |
406 | ||
407 | /* | |
408 | * initialize the receive descriptors | |
409 | */ | |
410 | ds = (struct s_smt_fp_rxd volatile *) smc->os.hwm.descr_p ; | |
411 | queue = smc->hw.fp.rx[QUEUE_R1] ; | |
412 | DB_GEN("Init RxD ring, %d RxDs ",SMT_R1_RXD_COUNT,0,3) ; | |
413 | (void)init_descr_ring(smc,(union s_fp_descr volatile *)ds, | |
414 | SMT_R1_RXD_COUNT) ; | |
415 | phys = AIX_REVERSE(ds->rxd_nrdadr) ; | |
416 | ds++ ; | |
417 | queue->rx_curr_put = queue->rx_curr_get = ds ; | |
418 | queue->rx_free = SMT_R1_RXD_COUNT ; | |
419 | queue->rx_used = 0 ; | |
420 | outpd(ADDR(B4_R1_DA),phys) ; | |
421 | } | |
422 | ||
423 | /* | |
424 | * BEGIN_MANUAL_ENTRY(init_fddi_driver) | |
425 | * void init_fddi_driver(smc,mac_addr) | |
426 | * | |
427 | * initializes the driver and it's variables | |
428 | * | |
429 | * END_MANUAL_ENTRY | |
430 | */ | |
431 | void init_fddi_driver(struct s_smc *smc, u_char *mac_addr) | |
432 | { | |
433 | SMbuf *mb ; | |
434 | int i ; | |
435 | ||
436 | init_board(smc,mac_addr) ; | |
437 | (void)init_fplus(smc) ; | |
438 | ||
439 | /* | |
440 | * initialize the SMbufs for the SMT | |
441 | */ | |
442 | #ifndef COMMON_MB_POOL | |
443 | mb = smc->os.hwm.mbuf_pool.mb_start ; | |
444 | smc->os.hwm.mbuf_pool.mb_free = (SMbuf *)NULL ; | |
445 | for (i = 0; i < MAX_MBUF; i++) { | |
446 | mb->sm_use_count = 1 ; | |
447 | smt_free_mbuf(smc,mb) ; | |
448 | mb++ ; | |
449 | } | |
450 | #else | |
451 | mb = mb_start ; | |
452 | if (!mb_init) { | |
453 | mb_free = 0 ; | |
454 | for (i = 0; i < MAX_MBUF; i++) { | |
455 | mb->sm_use_count = 1 ; | |
456 | smt_free_mbuf(smc,mb) ; | |
457 | mb++ ; | |
458 | } | |
459 | mb_init = TRUE ; | |
460 | } | |
461 | #endif | |
462 | ||
463 | /* | |
464 | * initialize the other variables | |
465 | */ | |
466 | smc->os.hwm.llc_rx_pipe = smc->os.hwm.llc_rx_tail = (SMbuf *)NULL ; | |
467 | smc->os.hwm.txd_tx_pipe = smc->os.hwm.txd_tx_tail = NULL ; | |
468 | smc->os.hwm.pass_SMT = smc->os.hwm.pass_NSA = smc->os.hwm.pass_DB = 0 ; | |
469 | smc->os.hwm.pass_llc_promisc = TRUE ; | |
470 | smc->os.hwm.queued_rx_frames = smc->os.hwm.queued_txd_mb = 0 ; | |
471 | smc->os.hwm.detec_count = 0 ; | |
472 | smc->os.hwm.rx_break = 0 ; | |
473 | smc->os.hwm.rx_len_error = 0 ; | |
474 | smc->os.hwm.isr_flag = FALSE ; | |
475 | ||
476 | /* | |
477 | * make sure that the start pointer is 16 byte aligned | |
478 | */ | |
479 | i = 16 - ((long)smc->os.hwm.descr_p & 0xf) ; | |
480 | if (i != 16) { | |
481 | DB_GEN("i = %d",i,0,3) ; | |
482 | smc->os.hwm.descr_p = (union s_fp_descr volatile *) | |
483 | ((char *)smc->os.hwm.descr_p+i) ; | |
484 | } | |
485 | DB_GEN("pt to descr area = %x",(void *)smc->os.hwm.descr_p,0,3) ; | |
486 | ||
487 | init_txd_ring(smc) ; | |
488 | init_rxd_ring(smc) ; | |
489 | mac_drv_fill_rxd(smc) ; | |
490 | ||
491 | init_plc(smc) ; | |
492 | } | |
493 | ||
494 | ||
495 | SMbuf *smt_get_mbuf(struct s_smc *smc) | |
496 | { | |
497 | register SMbuf *mb ; | |
498 | ||
499 | #ifndef COMMON_MB_POOL | |
500 | mb = smc->os.hwm.mbuf_pool.mb_free ; | |
501 | #else | |
502 | mb = mb_free ; | |
503 | #endif | |
504 | if (mb) { | |
505 | #ifndef COMMON_MB_POOL | |
506 | smc->os.hwm.mbuf_pool.mb_free = mb->sm_next ; | |
507 | #else | |
508 | mb_free = mb->sm_next ; | |
509 | #endif | |
510 | mb->sm_off = 8 ; | |
511 | mb->sm_use_count = 1 ; | |
512 | } | |
513 | DB_GEN("get SMbuf: mb = %x",(void *)mb,0,3) ; | |
514 | return (mb) ; /* May be NULL */ | |
515 | } | |
516 | ||
517 | void smt_free_mbuf(struct s_smc *smc, SMbuf *mb) | |
518 | { | |
519 | ||
520 | if (mb) { | |
521 | mb->sm_use_count-- ; | |
522 | DB_GEN("free_mbuf: sm_use_count = %d",mb->sm_use_count,0,3) ; | |
523 | /* | |
524 | * If the use_count is != zero the MBuf is queued | |
525 | * more than once and must not queued into the | |
526 | * free MBuf queue | |
527 | */ | |
528 | if (!mb->sm_use_count) { | |
529 | DB_GEN("free SMbuf: mb = %x",(void *)mb,0,3) ; | |
530 | #ifndef COMMON_MB_POOL | |
531 | mb->sm_next = smc->os.hwm.mbuf_pool.mb_free ; | |
532 | smc->os.hwm.mbuf_pool.mb_free = mb ; | |
533 | #else | |
534 | mb->sm_next = mb_free ; | |
535 | mb_free = mb ; | |
536 | #endif | |
537 | } | |
538 | } | |
539 | else | |
540 | SMT_PANIC(smc,HWM_E0003,HWM_E0003_MSG) ; | |
541 | } | |
542 | ||
543 | ||
544 | /* | |
545 | * BEGIN_MANUAL_ENTRY(mac_drv_repair_descr) | |
546 | * void mac_drv_repair_descr(smc) | |
547 | * | |
548 | * function called from SMT (HWM / hwmtm.c) | |
549 | * The BMU is idle when this function is called. | |
550 | * Mac_drv_repair_descr sets up the physical address | |
551 | * for all receive and transmit queues where the BMU | |
552 | * should continue. | |
553 | * It may be that the BMU was reseted during a fragmented | |
554 | * transfer. In this case there are some fragments which will | |
555 | * never completed by the BMU. The OWN bit of this fragments | |
556 | * must be switched to be owned by the host. | |
557 | * | |
558 | * Give a start command to the receive BMU. | |
559 | * Start the transmit BMUs if transmit frames pending. | |
560 | * | |
561 | * END_MANUAL_ENTRY | |
562 | */ | |
563 | void mac_drv_repair_descr(struct s_smc *smc) | |
564 | { | |
565 | u_long phys ; | |
566 | ||
567 | if (smc->hw.hw_state != STOPPED) { | |
568 | SK_BREAK() ; | |
569 | SMT_PANIC(smc,HWM_E0013,HWM_E0013_MSG) ; | |
570 | return ; | |
571 | } | |
572 | ||
573 | /* | |
574 | * repair tx queues: don't start | |
575 | */ | |
576 | phys = repair_txd_ring(smc,smc->hw.fp.tx[QUEUE_A0]) ; | |
577 | outpd(ADDR(B5_XA_DA),phys) ; | |
578 | if (smc->hw.fp.tx_q[QUEUE_A0].tx_used) { | |
579 | outpd(ADDR(B0_XA_CSR),CSR_START) ; | |
580 | } | |
581 | phys = repair_txd_ring(smc,smc->hw.fp.tx[QUEUE_S]) ; | |
582 | outpd(ADDR(B5_XS_DA),phys) ; | |
583 | if (smc->hw.fp.tx_q[QUEUE_S].tx_used) { | |
584 | outpd(ADDR(B0_XS_CSR),CSR_START) ; | |
585 | } | |
586 | ||
587 | /* | |
588 | * repair rx queues | |
589 | */ | |
590 | phys = repair_rxd_ring(smc,smc->hw.fp.rx[QUEUE_R1]) ; | |
591 | outpd(ADDR(B4_R1_DA),phys) ; | |
592 | outpd(ADDR(B0_R1_CSR),CSR_START) ; | |
593 | } | |
594 | ||
595 | static u_long repair_txd_ring(struct s_smc *smc, struct s_smt_tx_queue *queue) | |
596 | { | |
597 | int i ; | |
598 | int tx_used ; | |
599 | u_long phys ; | |
600 | u_long tbctrl ; | |
601 | struct s_smt_fp_txd volatile *t ; | |
602 | ||
603 | SK_UNUSED(smc) ; | |
604 | ||
605 | t = queue->tx_curr_get ; | |
606 | tx_used = queue->tx_used ; | |
607 | for (i = tx_used+queue->tx_free-1 ; i ; i-- ) { | |
608 | t = t->txd_next ; | |
609 | } | |
610 | phys = AIX_REVERSE(t->txd_ntdadr) ; | |
611 | ||
612 | t = queue->tx_curr_get ; | |
613 | while (tx_used) { | |
614 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORCPU) ; | |
615 | tbctrl = AIX_REVERSE(t->txd_tbctrl) ; | |
616 | ||
617 | if (tbctrl & BMU_OWN) { | |
618 | if (tbctrl & BMU_STF) { | |
619 | break ; /* exit the loop */ | |
620 | } | |
621 | else { | |
622 | /* | |
623 | * repair the descriptor | |
624 | */ | |
625 | t->txd_tbctrl &= AIX_REVERSE(~BMU_OWN) ; | |
626 | } | |
627 | } | |
628 | phys = AIX_REVERSE(t->txd_ntdadr) ; | |
629 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ; | |
630 | t = t->txd_next ; | |
631 | tx_used-- ; | |
632 | } | |
633 | return(phys) ; | |
634 | } | |
635 | ||
636 | /* | |
637 | * Repairs the receive descriptor ring and returns the physical address | |
638 | * where the BMU should continue working. | |
639 | * | |
640 | * o The physical address where the BMU was stopped has to be | |
641 | * determined. This is the next RxD after rx_curr_get with an OWN | |
642 | * bit set. | |
643 | * o The BMU should start working at beginning of the next frame. | |
644 | * RxDs with an OWN bit set but with a reset STF bit should be | |
645 | * skipped and owned by the driver (OWN = 0). | |
646 | */ | |
647 | static u_long repair_rxd_ring(struct s_smc *smc, struct s_smt_rx_queue *queue) | |
648 | { | |
649 | int i ; | |
650 | int rx_used ; | |
651 | u_long phys ; | |
652 | u_long rbctrl ; | |
653 | struct s_smt_fp_rxd volatile *r ; | |
654 | ||
655 | SK_UNUSED(smc) ; | |
656 | ||
657 | r = queue->rx_curr_get ; | |
658 | rx_used = queue->rx_used ; | |
659 | for (i = SMT_R1_RXD_COUNT-1 ; i ; i-- ) { | |
660 | r = r->rxd_next ; | |
661 | } | |
662 | phys = AIX_REVERSE(r->rxd_nrdadr) ; | |
663 | ||
664 | r = queue->rx_curr_get ; | |
665 | while (rx_used) { | |
666 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
667 | rbctrl = AIX_REVERSE(r->rxd_rbctrl) ; | |
668 | ||
669 | if (rbctrl & BMU_OWN) { | |
670 | if (rbctrl & BMU_STF) { | |
671 | break ; /* exit the loop */ | |
672 | } | |
673 | else { | |
674 | /* | |
675 | * repair the descriptor | |
676 | */ | |
677 | r->rxd_rbctrl &= AIX_REVERSE(~BMU_OWN) ; | |
678 | } | |
679 | } | |
680 | phys = AIX_REVERSE(r->rxd_nrdadr) ; | |
681 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORDEV) ; | |
682 | r = r->rxd_next ; | |
683 | rx_used-- ; | |
684 | } | |
685 | return(phys) ; | |
686 | } | |
687 | ||
688 | ||
689 | /* | |
690 | ------------------------------------------------------------- | |
691 | INTERRUPT SERVICE ROUTINE: | |
692 | ------------------------------------------------------------- | |
693 | */ | |
694 | ||
695 | /* | |
696 | * BEGIN_MANUAL_ENTRY(fddi_isr) | |
697 | * void fddi_isr(smc) | |
698 | * | |
699 | * function DOWNCALL (drvsr.c) | |
700 | * interrupt service routine, handles the interrupt requests | |
701 | * generated by the FDDI adapter. | |
702 | * | |
703 | * NOTE: The operating system dependent module must garantee that the | |
704 | * interrupts of the adapter are disabled when it calls fddi_isr. | |
705 | * | |
706 | * About the USE_BREAK_ISR mechanismn: | |
707 | * | |
708 | * The main requirement of this mechanismn is to force an timer IRQ when | |
709 | * leaving process_receive() with leave_isr set. process_receive() may | |
710 | * be called at any time from anywhere! | |
711 | * To be sure we don't miss such event we set 'force_irq' per default. | |
712 | * We have to force and Timer IRQ if 'smc->os.hwm.leave_isr' AND | |
713 | * 'force_irq' are set. 'force_irq' may be reset if a receive complete | |
714 | * IRQ is pending. | |
715 | * | |
716 | * END_MANUAL_ENTRY | |
717 | */ | |
718 | void fddi_isr(struct s_smc *smc) | |
719 | { | |
720 | u_long is ; /* ISR source */ | |
721 | u_short stu, stl ; | |
722 | SMbuf *mb ; | |
723 | ||
724 | #ifdef USE_BREAK_ISR | |
725 | int force_irq ; | |
726 | #endif | |
727 | ||
728 | #ifdef ODI2 | |
729 | if (smc->os.hwm.rx_break) { | |
730 | mac_drv_fill_rxd(smc) ; | |
731 | if (smc->hw.fp.rx_q[QUEUE_R1].rx_used > 0) { | |
732 | smc->os.hwm.rx_break = 0 ; | |
733 | process_receive(smc) ; | |
734 | } | |
735 | else { | |
736 | smc->os.hwm.detec_count = 0 ; | |
737 | smt_force_irq(smc) ; | |
738 | } | |
739 | } | |
740 | #endif | |
741 | smc->os.hwm.isr_flag = TRUE ; | |
742 | ||
743 | #ifdef USE_BREAK_ISR | |
744 | force_irq = TRUE ; | |
745 | if (smc->os.hwm.leave_isr) { | |
746 | smc->os.hwm.leave_isr = FALSE ; | |
747 | process_receive(smc) ; | |
748 | } | |
749 | #endif | |
750 | ||
751 | while ((is = GET_ISR() & ISR_MASK)) { | |
752 | NDD_TRACE("CH0B",is,0,0) ; | |
753 | DB_GEN("ISA = 0x%x",is,0,7) ; | |
754 | ||
755 | if (is & IMASK_SLOW) { | |
756 | NDD_TRACE("CH1b",is,0,0) ; | |
757 | if (is & IS_PLINT1) { /* PLC1 */ | |
758 | plc1_irq(smc) ; | |
759 | } | |
760 | if (is & IS_PLINT2) { /* PLC2 */ | |
761 | plc2_irq(smc) ; | |
762 | } | |
763 | if (is & IS_MINTR1) { /* FORMAC+ STU1(U/L) */ | |
764 | stu = inpw(FM_A(FM_ST1U)) ; | |
765 | stl = inpw(FM_A(FM_ST1L)) ; | |
766 | DB_GEN("Slow transmit complete",0,0,6) ; | |
767 | mac1_irq(smc,stu,stl) ; | |
768 | } | |
769 | if (is & IS_MINTR2) { /* FORMAC+ STU2(U/L) */ | |
770 | stu= inpw(FM_A(FM_ST2U)) ; | |
771 | stl= inpw(FM_A(FM_ST2L)) ; | |
772 | DB_GEN("Slow receive complete",0,0,6) ; | |
773 | DB_GEN("stl = %x : stu = %x",stl,stu,7) ; | |
774 | mac2_irq(smc,stu,stl) ; | |
775 | } | |
776 | if (is & IS_MINTR3) { /* FORMAC+ STU3(U/L) */ | |
777 | stu= inpw(FM_A(FM_ST3U)) ; | |
778 | stl= inpw(FM_A(FM_ST3L)) ; | |
779 | DB_GEN("FORMAC Mode Register 3",0,0,6) ; | |
780 | mac3_irq(smc,stu,stl) ; | |
781 | } | |
782 | if (is & IS_TIMINT) { /* Timer 82C54-2 */ | |
783 | timer_irq(smc) ; | |
784 | #ifdef NDIS_OS2 | |
785 | force_irq_pending = 0 ; | |
786 | #endif | |
787 | /* | |
788 | * out of RxD detection | |
789 | */ | |
790 | if (++smc->os.hwm.detec_count > 4) { | |
791 | /* | |
792 | * check out of RxD condition | |
793 | */ | |
794 | process_receive(smc) ; | |
795 | } | |
796 | } | |
797 | if (is & IS_TOKEN) { /* Restricted Token Monitor */ | |
798 | rtm_irq(smc) ; | |
799 | } | |
800 | if (is & IS_R1_P) { /* Parity error rx queue 1 */ | |
801 | /* clear IRQ */ | |
802 | outpd(ADDR(B4_R1_CSR),CSR_IRQ_CL_P) ; | |
803 | SMT_PANIC(smc,HWM_E0004,HWM_E0004_MSG) ; | |
804 | } | |
805 | if (is & IS_R1_C) { /* Encoding error rx queue 1 */ | |
806 | /* clear IRQ */ | |
807 | outpd(ADDR(B4_R1_CSR),CSR_IRQ_CL_C) ; | |
808 | SMT_PANIC(smc,HWM_E0005,HWM_E0005_MSG) ; | |
809 | } | |
810 | if (is & IS_XA_C) { /* Encoding error async tx q */ | |
811 | /* clear IRQ */ | |
812 | outpd(ADDR(B5_XA_CSR),CSR_IRQ_CL_C) ; | |
813 | SMT_PANIC(smc,HWM_E0006,HWM_E0006_MSG) ; | |
814 | } | |
815 | if (is & IS_XS_C) { /* Encoding error sync tx q */ | |
816 | /* clear IRQ */ | |
817 | outpd(ADDR(B5_XS_CSR),CSR_IRQ_CL_C) ; | |
818 | SMT_PANIC(smc,HWM_E0007,HWM_E0007_MSG) ; | |
819 | } | |
820 | } | |
821 | ||
822 | /* | |
823 | * Fast Tx complete Async/Sync Queue (BMU service) | |
824 | */ | |
825 | if (is & (IS_XS_F|IS_XA_F)) { | |
826 | DB_GEN("Fast tx complete queue",0,0,6) ; | |
827 | /* | |
828 | * clear IRQ, Note: no IRQ is lost, because | |
829 | * we always service both queues | |
830 | */ | |
831 | outpd(ADDR(B5_XS_CSR),CSR_IRQ_CL_F) ; | |
832 | outpd(ADDR(B5_XA_CSR),CSR_IRQ_CL_F) ; | |
833 | mac_drv_clear_txd(smc) ; | |
834 | llc_restart_tx(smc) ; | |
835 | } | |
836 | ||
837 | /* | |
838 | * Fast Rx Complete (BMU service) | |
839 | */ | |
840 | if (is & IS_R1_F) { | |
841 | DB_GEN("Fast receive complete",0,0,6) ; | |
842 | /* clear IRQ */ | |
843 | #ifndef USE_BREAK_ISR | |
844 | outpd(ADDR(B4_R1_CSR),CSR_IRQ_CL_F) ; | |
845 | process_receive(smc) ; | |
846 | #else | |
847 | process_receive(smc) ; | |
848 | if (smc->os.hwm.leave_isr) { | |
849 | force_irq = FALSE ; | |
850 | } else { | |
851 | outpd(ADDR(B4_R1_CSR),CSR_IRQ_CL_F) ; | |
852 | process_receive(smc) ; | |
853 | } | |
854 | #endif | |
855 | } | |
856 | ||
857 | #ifndef NDIS_OS2 | |
858 | while ((mb = get_llc_rx(smc))) { | |
859 | smt_to_llc(smc,mb) ; | |
860 | } | |
861 | #else | |
862 | if (offDepth) | |
863 | post_proc() ; | |
864 | ||
865 | while (!offDepth && (mb = get_llc_rx(smc))) { | |
866 | smt_to_llc(smc,mb) ; | |
867 | } | |
868 | ||
869 | if (!offDepth && smc->os.hwm.rx_break) { | |
870 | process_receive(smc) ; | |
871 | } | |
872 | #endif | |
873 | if (smc->q.ev_get != smc->q.ev_put) { | |
874 | NDD_TRACE("CH2a",0,0,0) ; | |
875 | ev_dispatcher(smc) ; | |
876 | } | |
877 | #ifdef NDIS_OS2 | |
878 | post_proc() ; | |
879 | if (offDepth) { /* leave fddi_isr because */ | |
880 | break ; /* indications not allowed */ | |
881 | } | |
882 | #endif | |
883 | #ifdef USE_BREAK_ISR | |
884 | if (smc->os.hwm.leave_isr) { | |
885 | break ; /* leave fddi_isr */ | |
886 | } | |
887 | #endif | |
888 | ||
889 | /* NOTE: when the isr is left, no rx is pending */ | |
890 | } /* end of interrupt source polling loop */ | |
891 | ||
892 | #ifdef USE_BREAK_ISR | |
893 | if (smc->os.hwm.leave_isr && force_irq) { | |
894 | smt_force_irq(smc) ; | |
895 | } | |
896 | #endif | |
897 | smc->os.hwm.isr_flag = FALSE ; | |
898 | NDD_TRACE("CH0E",0,0,0) ; | |
899 | } | |
900 | ||
901 | ||
902 | /* | |
903 | ------------------------------------------------------------- | |
904 | RECEIVE FUNCTIONS: | |
905 | ------------------------------------------------------------- | |
906 | */ | |
907 | ||
908 | #ifndef NDIS_OS2 | |
909 | /* | |
910 | * BEGIN_MANUAL_ENTRY(mac_drv_rx_mode) | |
911 | * void mac_drv_rx_mode(smc,mode) | |
912 | * | |
913 | * function DOWNCALL (fplus.c) | |
914 | * Corresponding to the parameter mode, the operating system | |
915 | * dependent module can activate several receive modes. | |
916 | * | |
917 | * para mode = 1: RX_ENABLE_ALLMULTI enable all multicasts | |
918 | * = 2: RX_DISABLE_ALLMULTI disable "enable all multicasts" | |
919 | * = 3: RX_ENABLE_PROMISC enable promiscuous | |
920 | * = 4: RX_DISABLE_PROMISC disable promiscuous | |
921 | * = 5: RX_ENABLE_NSA enable rec. of all NSA frames | |
922 | * (disabled after 'driver reset' & 'set station address') | |
923 | * = 6: RX_DISABLE_NSA disable rec. of all NSA frames | |
924 | * | |
925 | * = 21: RX_ENABLE_PASS_SMT ( see description ) | |
926 | * = 22: RX_DISABLE_PASS_SMT ( " " ) | |
927 | * = 23: RX_ENABLE_PASS_NSA ( " " ) | |
928 | * = 24: RX_DISABLE_PASS_NSA ( " " ) | |
929 | * = 25: RX_ENABLE_PASS_DB ( " " ) | |
930 | * = 26: RX_DISABLE_PASS_DB ( " " ) | |
931 | * = 27: RX_DISABLE_PASS_ALL ( " " ) | |
932 | * = 28: RX_DISABLE_LLC_PROMISC ( " " ) | |
933 | * = 29: RX_ENABLE_LLC_PROMISC ( " " ) | |
934 | * | |
935 | * | |
936 | * RX_ENABLE_PASS_SMT / RX_DISABLE_PASS_SMT | |
937 | * | |
938 | * If the operating system dependent module activates the | |
939 | * mode RX_ENABLE_PASS_SMT, the hardware module | |
940 | * duplicates all SMT frames with the frame control | |
941 | * FC_SMT_INFO and passes them to the LLC receive channel | |
942 | * by calling mac_drv_rx_init. | |
943 | * The SMT Frames which are sent by the local SMT and the NSA | |
944 | * frames whose A- and C-Indicator is not set are also duplicated | |
945 | * and passed. | |
946 | * The receive mode RX_DISABLE_PASS_SMT disables the passing | |
947 | * of SMT frames. | |
948 | * | |
949 | * RX_ENABLE_PASS_NSA / RX_DISABLE_PASS_NSA | |
950 | * | |
951 | * If the operating system dependent module activates the | |
952 | * mode RX_ENABLE_PASS_NSA, the hardware module | |
953 | * duplicates all NSA frames with frame control FC_SMT_NSA | |
954 | * and a set A-Indicator and passed them to the LLC | |
955 | * receive channel by calling mac_drv_rx_init. | |
956 | * All NSA Frames which are sent by the local SMT | |
957 | * are also duplicated and passed. | |
958 | * The receive mode RX_DISABLE_PASS_NSA disables the passing | |
959 | * of NSA frames with the A- or C-Indicator set. | |
960 | * | |
961 | * NOTE: For fear that the hardware module receives NSA frames with | |
962 | * a reset A-Indicator, the operating system dependent module | |
963 | * has to call mac_drv_rx_mode with the mode RX_ENABLE_NSA | |
964 | * before activate the RX_ENABLE_PASS_NSA mode and after every | |
965 | * 'driver reset' and 'set station address'. | |
966 | * | |
967 | * RX_ENABLE_PASS_DB / RX_DISABLE_PASS_DB | |
968 | * | |
969 | * If the operating system dependent module activates the | |
970 | * mode RX_ENABLE_PASS_DB, direct BEACON frames | |
971 | * (FC_BEACON frame control) are passed to the LLC receive | |
972 | * channel by mac_drv_rx_init. | |
973 | * The receive mode RX_DISABLE_PASS_DB disables the passing | |
974 | * of direct BEACON frames. | |
975 | * | |
976 | * RX_DISABLE_PASS_ALL | |
977 | * | |
978 | * Disables all special receives modes. It is equal to | |
979 | * call mac_drv_set_rx_mode successively with the | |
980 | * parameters RX_DISABLE_NSA, RX_DISABLE_PASS_SMT, | |
981 | * RX_DISABLE_PASS_NSA and RX_DISABLE_PASS_DB. | |
982 | * | |
983 | * RX_ENABLE_LLC_PROMISC | |
984 | * | |
985 | * (default) all received LLC frames and all SMT/NSA/DBEACON | |
986 | * frames depending on the attitude of the flags | |
987 | * PASS_SMT/PASS_NSA/PASS_DBEACON will be delivered to the | |
988 | * LLC layer | |
989 | * | |
990 | * RX_DISABLE_LLC_PROMISC | |
991 | * | |
992 | * all received SMT/NSA/DBEACON frames depending on the | |
993 | * attitude of the flags PASS_SMT/PASS_NSA/PASS_DBEACON | |
994 | * will be delivered to the LLC layer. | |
995 | * all received LLC frames with a directed address, Multicast | |
996 | * or Broadcast address will be delivered to the LLC | |
997 | * layer too. | |
998 | * | |
999 | * END_MANUAL_ENTRY | |
1000 | */ | |
1001 | void mac_drv_rx_mode(struct s_smc *smc, int mode) | |
1002 | { | |
1003 | switch(mode) { | |
1004 | case RX_ENABLE_PASS_SMT: | |
1005 | smc->os.hwm.pass_SMT = TRUE ; | |
1006 | break ; | |
1007 | case RX_DISABLE_PASS_SMT: | |
1008 | smc->os.hwm.pass_SMT = FALSE ; | |
1009 | break ; | |
1010 | case RX_ENABLE_PASS_NSA: | |
1011 | smc->os.hwm.pass_NSA = TRUE ; | |
1012 | break ; | |
1013 | case RX_DISABLE_PASS_NSA: | |
1014 | smc->os.hwm.pass_NSA = FALSE ; | |
1015 | break ; | |
1016 | case RX_ENABLE_PASS_DB: | |
1017 | smc->os.hwm.pass_DB = TRUE ; | |
1018 | break ; | |
1019 | case RX_DISABLE_PASS_DB: | |
1020 | smc->os.hwm.pass_DB = FALSE ; | |
1021 | break ; | |
1022 | case RX_DISABLE_PASS_ALL: | |
1023 | smc->os.hwm.pass_SMT = smc->os.hwm.pass_NSA = FALSE ; | |
1024 | smc->os.hwm.pass_DB = FALSE ; | |
1025 | smc->os.hwm.pass_llc_promisc = TRUE ; | |
1026 | mac_set_rx_mode(smc,RX_DISABLE_NSA) ; | |
1027 | break ; | |
1028 | case RX_DISABLE_LLC_PROMISC: | |
1029 | smc->os.hwm.pass_llc_promisc = FALSE ; | |
1030 | break ; | |
1031 | case RX_ENABLE_LLC_PROMISC: | |
1032 | smc->os.hwm.pass_llc_promisc = TRUE ; | |
1033 | break ; | |
1034 | case RX_ENABLE_ALLMULTI: | |
1035 | case RX_DISABLE_ALLMULTI: | |
1036 | case RX_ENABLE_PROMISC: | |
1037 | case RX_DISABLE_PROMISC: | |
1038 | case RX_ENABLE_NSA: | |
1039 | case RX_DISABLE_NSA: | |
1040 | default: | |
1041 | mac_set_rx_mode(smc,mode) ; | |
1042 | break ; | |
1043 | } | |
1044 | } | |
1045 | #endif /* ifndef NDIS_OS2 */ | |
1046 | ||
1047 | /* | |
1048 | * process receive queue | |
1049 | */ | |
1050 | void process_receive(struct s_smc *smc) | |
1051 | { | |
1052 | int i ; | |
1053 | int n ; | |
1054 | int frag_count ; /* number of RxDs of the curr rx buf */ | |
1055 | int used_frags ; /* number of RxDs of the curr frame */ | |
1056 | struct s_smt_rx_queue *queue ; /* points to the queue ctl struct */ | |
1057 | struct s_smt_fp_rxd volatile *r ; /* rxd pointer */ | |
1058 | struct s_smt_fp_rxd volatile *rxd ; /* first rxd of rx frame */ | |
1059 | u_long rbctrl ; /* receive buffer control word */ | |
1060 | u_long rfsw ; /* receive frame status word */ | |
1061 | u_short rx_used ; | |
1062 | u_char far *virt ; | |
1063 | char far *data ; | |
1064 | SMbuf *mb ; | |
1065 | u_char fc ; /* Frame control */ | |
1066 | int len ; /* Frame length */ | |
1067 | ||
1068 | smc->os.hwm.detec_count = 0 ; | |
1069 | queue = smc->hw.fp.rx[QUEUE_R1] ; | |
1070 | NDD_TRACE("RHxB",0,0,0) ; | |
1071 | for ( ; ; ) { | |
1072 | r = queue->rx_curr_get ; | |
1073 | rx_used = queue->rx_used ; | |
1074 | frag_count = 0 ; | |
1075 | ||
1076 | #ifdef USE_BREAK_ISR | |
1077 | if (smc->os.hwm.leave_isr) { | |
1078 | goto rx_end ; | |
1079 | } | |
1080 | #endif | |
1081 | #ifdef NDIS_OS2 | |
1082 | if (offDepth) { | |
1083 | smc->os.hwm.rx_break = 1 ; | |
1084 | goto rx_end ; | |
1085 | } | |
1086 | smc->os.hwm.rx_break = 0 ; | |
1087 | #endif | |
1088 | #ifdef ODI2 | |
1089 | if (smc->os.hwm.rx_break) { | |
1090 | goto rx_end ; | |
1091 | } | |
1092 | #endif | |
1093 | n = 0 ; | |
1094 | do { | |
1095 | DB_RX("Check RxD %x for OWN and EOF",(void *)r,0,5) ; | |
1096 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
1097 | rbctrl = CR_READ(r->rxd_rbctrl) ; | |
1098 | rbctrl = AIX_REVERSE(rbctrl) ; | |
1099 | ||
1100 | if (rbctrl & BMU_OWN) { | |
1101 | NDD_TRACE("RHxE",r,rfsw,rbctrl) ; | |
1102 | DB_RX("End of RxDs",0,0,4) ; | |
1103 | goto rx_end ; | |
1104 | } | |
1105 | /* | |
1106 | * out of RxD detection | |
1107 | */ | |
1108 | if (!rx_used) { | |
1109 | SK_BREAK() ; | |
1110 | SMT_PANIC(smc,HWM_E0009,HWM_E0009_MSG) ; | |
1111 | /* Either we don't have an RxD or all | |
1112 | * RxDs are filled. Therefore it's allowed | |
1113 | * for to set the STOPPED flag */ | |
1114 | smc->hw.hw_state = STOPPED ; | |
1115 | mac_drv_clear_rx_queue(smc) ; | |
1116 | smc->hw.hw_state = STARTED ; | |
1117 | mac_drv_fill_rxd(smc) ; | |
1118 | smc->os.hwm.detec_count = 0 ; | |
1119 | goto rx_end ; | |
1120 | } | |
1121 | rfsw = AIX_REVERSE(r->rxd_rfsw) ; | |
1122 | if ((rbctrl & BMU_STF) != ((rbctrl & BMU_ST_BUF) <<5)) { | |
1123 | /* | |
1124 | * The BMU_STF bit is deleted, 1 frame is | |
1125 | * placed into more than 1 rx buffer | |
1126 | * | |
1127 | * skip frame by setting the rx len to 0 | |
1128 | * | |
1129 | * if fragment count == 0 | |
1130 | * The missing STF bit belongs to the | |
1131 | * current frame, search for the | |
1132 | * EOF bit to complete the frame | |
1133 | * else | |
1134 | * the fragment belongs to the next frame, | |
1135 | * exit the loop and process the frame | |
1136 | */ | |
1137 | SK_BREAK() ; | |
1138 | rfsw = 0 ; | |
1139 | if (frag_count) { | |
1140 | break ; | |
1141 | } | |
1142 | } | |
1143 | n += rbctrl & 0xffff ; | |
1144 | r = r->rxd_next ; | |
1145 | frag_count++ ; | |
1146 | rx_used-- ; | |
1147 | } while (!(rbctrl & BMU_EOF)) ; | |
1148 | used_frags = frag_count ; | |
1149 | DB_RX("EOF set in RxD, used_frags = %d ",used_frags,0,5) ; | |
1150 | ||
1151 | /* may be next 2 DRV_BUF_FLUSH() can be skipped, because */ | |
1152 | /* BMU_ST_BUF will not be changed by the ASIC */ | |
1153 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
1154 | while (rx_used && !(r->rxd_rbctrl & AIX_REVERSE(BMU_ST_BUF))) { | |
1155 | DB_RX("Check STF bit in %x",(void *)r,0,5) ; | |
1156 | r = r->rxd_next ; | |
1157 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
1158 | frag_count++ ; | |
1159 | rx_used-- ; | |
1160 | } | |
1161 | DB_RX("STF bit found",0,0,5) ; | |
1162 | ||
1163 | /* | |
1164 | * The received frame is finished for the process receive | |
1165 | */ | |
1166 | rxd = queue->rx_curr_get ; | |
1167 | queue->rx_curr_get = r ; | |
1168 | queue->rx_free += frag_count ; | |
1169 | queue->rx_used = rx_used ; | |
1170 | ||
1171 | /* | |
1172 | * ASIC Errata no. 7 (STF - Bit Bug) | |
1173 | */ | |
1174 | rxd->rxd_rbctrl &= AIX_REVERSE(~BMU_STF) ; | |
1175 | ||
1176 | for (r=rxd, i=frag_count ; i ; r=r->rxd_next, i--){ | |
1177 | DB_RX("dma_complete for RxD %x",(void *)r,0,5) ; | |
1178 | dma_complete(smc,(union s_fp_descr volatile *)r,DMA_WR); | |
1179 | } | |
1180 | smc->hw.fp.err_stats.err_valid++ ; | |
1181 | smc->mib.m[MAC0].fddiMACCopied_Ct++ ; | |
1182 | ||
1183 | /* the length of the data including the FC */ | |
1184 | len = (rfsw & RD_LENGTH) - 4 ; | |
1185 | ||
1186 | DB_RX("frame length = %d",len,0,4) ; | |
1187 | /* | |
1188 | * check the frame_lenght and all error flags | |
1189 | */ | |
1190 | if (rfsw & (RX_MSRABT|RX_FS_E|RX_FS_CRC|RX_FS_IMPL)){ | |
1191 | if (rfsw & RD_S_MSRABT) { | |
1192 | DB_RX("Frame aborted by the FORMAC",0,0,2) ; | |
1193 | smc->hw.fp.err_stats.err_abort++ ; | |
1194 | } | |
1195 | /* | |
1196 | * check frame status | |
1197 | */ | |
1198 | if (rfsw & RD_S_SEAC2) { | |
1199 | DB_RX("E-Indicator set",0,0,2) ; | |
1200 | smc->hw.fp.err_stats.err_e_indicator++ ; | |
1201 | } | |
1202 | if (rfsw & RD_S_SFRMERR) { | |
1203 | DB_RX("CRC error",0,0,2) ; | |
1204 | smc->hw.fp.err_stats.err_crc++ ; | |
1205 | } | |
1206 | if (rfsw & RX_FS_IMPL) { | |
1207 | DB_RX("Implementer frame",0,0,2) ; | |
1208 | smc->hw.fp.err_stats.err_imp_frame++ ; | |
1209 | } | |
1210 | goto abort_frame ; | |
1211 | } | |
1212 | if (len > FDDI_RAW_MTU-4) { | |
1213 | DB_RX("Frame too long error",0,0,2) ; | |
1214 | smc->hw.fp.err_stats.err_too_long++ ; | |
1215 | goto abort_frame ; | |
1216 | } | |
1217 | /* | |
1218 | * SUPERNET 3 Bug: FORMAC delivers status words | |
1219 | * of aborded frames to the BMU | |
1220 | */ | |
1221 | if (len <= 4) { | |
1222 | DB_RX("Frame length = 0",0,0,2) ; | |
1223 | goto abort_frame ; | |
1224 | } | |
1225 | ||
1226 | if (len != (n-4)) { | |
1227 | DB_RX("BMU: rx len differs: [%d:%d]",len,n,4); | |
1228 | smc->os.hwm.rx_len_error++ ; | |
1229 | goto abort_frame ; | |
1230 | } | |
1231 | ||
1232 | /* | |
1233 | * Check SA == MA | |
1234 | */ | |
1235 | virt = (u_char far *) rxd->rxd_virt ; | |
1236 | DB_RX("FC = %x",*virt,0,2) ; | |
1237 | if (virt[12] == MA[5] && | |
1238 | virt[11] == MA[4] && | |
1239 | virt[10] == MA[3] && | |
1240 | virt[9] == MA[2] && | |
1241 | virt[8] == MA[1] && | |
1242 | (virt[7] & ~GROUP_ADDR_BIT) == MA[0]) { | |
1243 | goto abort_frame ; | |
1244 | } | |
1245 | ||
1246 | /* | |
1247 | * test if LLC frame | |
1248 | */ | |
1249 | if (rfsw & RX_FS_LLC) { | |
1250 | /* | |
1251 | * if pass_llc_promisc is disable | |
1252 | * if DA != Multicast or Broadcast or DA!=MA | |
1253 | * abort the frame | |
1254 | */ | |
1255 | if (!smc->os.hwm.pass_llc_promisc) { | |
1256 | if(!(virt[1] & GROUP_ADDR_BIT)) { | |
1257 | if (virt[6] != MA[5] || | |
1258 | virt[5] != MA[4] || | |
1259 | virt[4] != MA[3] || | |
1260 | virt[3] != MA[2] || | |
1261 | virt[2] != MA[1] || | |
1262 | virt[1] != MA[0]) { | |
1263 | DB_RX("DA != MA and not multi- or broadcast",0,0,2) ; | |
1264 | goto abort_frame ; | |
1265 | } | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | /* | |
1270 | * LLC frame received | |
1271 | */ | |
1272 | DB_RX("LLC - receive",0,0,4) ; | |
1273 | mac_drv_rx_complete(smc,rxd,frag_count,len) ; | |
1274 | } | |
1275 | else { | |
1276 | if (!(mb = smt_get_mbuf(smc))) { | |
1277 | smc->hw.fp.err_stats.err_no_buf++ ; | |
1278 | DB_RX("No SMbuf; receive terminated",0,0,4) ; | |
1279 | goto abort_frame ; | |
1280 | } | |
1281 | data = smtod(mb,char *) - 1 ; | |
1282 | ||
1283 | /* | |
1284 | * copy the frame into a SMT_MBuf | |
1285 | */ | |
1286 | #ifdef USE_OS_CPY | |
1287 | hwm_cpy_rxd2mb(rxd,data,len) ; | |
1288 | #else | |
1289 | for (r=rxd, i=used_frags ; i ; r=r->rxd_next, i--){ | |
1290 | n = AIX_REVERSE(r->rxd_rbctrl) & RD_LENGTH ; | |
1291 | DB_RX("cp SMT frame to mb: len = %d",n,0,6) ; | |
1292 | memcpy(data,r->rxd_virt,n) ; | |
1293 | data += n ; | |
1294 | } | |
1295 | data = smtod(mb,char *) - 1 ; | |
1296 | #endif | |
1297 | fc = *(char *)mb->sm_data = *data ; | |
1298 | mb->sm_len = len - 1 ; /* len - fc */ | |
1299 | data++ ; | |
1300 | ||
1301 | /* | |
1302 | * SMT frame received | |
1303 | */ | |
1304 | switch(fc) { | |
1305 | case FC_SMT_INFO : | |
1306 | smc->hw.fp.err_stats.err_smt_frame++ ; | |
1307 | DB_RX("SMT frame received ",0,0,5) ; | |
1308 | ||
1309 | if (smc->os.hwm.pass_SMT) { | |
1310 | DB_RX("pass SMT frame ",0,0,5) ; | |
1311 | mac_drv_rx_complete(smc, rxd, | |
1312 | frag_count,len) ; | |
1313 | } | |
1314 | else { | |
1315 | DB_RX("requeue RxD",0,0,5) ; | |
1316 | mac_drv_requeue_rxd(smc,rxd,frag_count); | |
1317 | } | |
1318 | ||
1319 | smt_received_pack(smc,mb,(int)(rfsw>>25)) ; | |
1320 | break ; | |
1321 | case FC_SMT_NSA : | |
1322 | smc->hw.fp.err_stats.err_smt_frame++ ; | |
1323 | DB_RX("SMT frame received ",0,0,5) ; | |
1324 | ||
1325 | /* if pass_NSA set pass the NSA frame or */ | |
1326 | /* pass_SMT set and the A-Indicator */ | |
1327 | /* is not set, pass the NSA frame */ | |
1328 | if (smc->os.hwm.pass_NSA || | |
1329 | (smc->os.hwm.pass_SMT && | |
1330 | !(rfsw & A_INDIC))) { | |
1331 | DB_RX("pass SMT frame ",0,0,5) ; | |
1332 | mac_drv_rx_complete(smc, rxd, | |
1333 | frag_count,len) ; | |
1334 | } | |
1335 | else { | |
1336 | DB_RX("requeue RxD",0,0,5) ; | |
1337 | mac_drv_requeue_rxd(smc,rxd,frag_count); | |
1338 | } | |
1339 | ||
1340 | smt_received_pack(smc,mb,(int)(rfsw>>25)) ; | |
1341 | break ; | |
1342 | case FC_BEACON : | |
1343 | if (smc->os.hwm.pass_DB) { | |
1344 | DB_RX("pass DB frame ",0,0,5) ; | |
1345 | mac_drv_rx_complete(smc, rxd, | |
1346 | frag_count,len) ; | |
1347 | } | |
1348 | else { | |
1349 | DB_RX("requeue RxD",0,0,5) ; | |
1350 | mac_drv_requeue_rxd(smc,rxd,frag_count); | |
1351 | } | |
1352 | smt_free_mbuf(smc,mb) ; | |
1353 | break ; | |
1354 | default : | |
1355 | /* | |
1356 | * unknown FC abord the frame | |
1357 | */ | |
1358 | DB_RX("unknown FC error",0,0,2) ; | |
1359 | smt_free_mbuf(smc,mb) ; | |
1360 | DB_RX("requeue RxD",0,0,5) ; | |
1361 | mac_drv_requeue_rxd(smc,rxd,frag_count) ; | |
1362 | if ((fc & 0xf0) == FC_MAC) | |
1363 | smc->hw.fp.err_stats.err_mac_frame++ ; | |
1364 | else | |
1365 | smc->hw.fp.err_stats.err_imp_frame++ ; | |
1366 | ||
1367 | break ; | |
1368 | } | |
1369 | } | |
1370 | ||
1371 | DB_RX("next RxD is %x ",queue->rx_curr_get,0,3) ; | |
1372 | NDD_TRACE("RHx1",queue->rx_curr_get,0,0) ; | |
1373 | ||
1374 | continue ; | |
1375 | /*--------------------------------------------------------------------*/ | |
1376 | abort_frame: | |
1377 | DB_RX("requeue RxD",0,0,5) ; | |
1378 | mac_drv_requeue_rxd(smc,rxd,frag_count) ; | |
1379 | ||
1380 | DB_RX("next RxD is %x ",queue->rx_curr_get,0,3) ; | |
1381 | NDD_TRACE("RHx2",queue->rx_curr_get,0,0) ; | |
1382 | } | |
1383 | rx_end: | |
1384 | #ifdef ALL_RX_COMPLETE | |
1385 | mac_drv_all_receives_complete(smc) ; | |
1386 | #endif | |
1387 | return ; /* lint bug: needs return detect end of function */ | |
1388 | } | |
1389 | ||
1390 | static void smt_to_llc(struct s_smc *smc, SMbuf *mb) | |
1391 | { | |
1392 | u_char fc ; | |
1393 | ||
1394 | DB_RX("send a queued frame to the llc layer",0,0,4) ; | |
1395 | smc->os.hwm.r.len = mb->sm_len ; | |
1396 | smc->os.hwm.r.mb_pos = smtod(mb,char *) ; | |
1397 | fc = *smc->os.hwm.r.mb_pos ; | |
1398 | (void)mac_drv_rx_init(smc,(int)mb->sm_len,(int)fc, | |
1399 | smc->os.hwm.r.mb_pos,(int)mb->sm_len) ; | |
1400 | smt_free_mbuf(smc,mb) ; | |
1401 | } | |
1402 | ||
1403 | /* | |
1404 | * BEGIN_MANUAL_ENTRY(hwm_rx_frag) | |
1405 | * void hwm_rx_frag(smc,virt,phys,len,frame_status) | |
1406 | * | |
1407 | * function MACRO (hardware module, hwmtm.h) | |
1408 | * This function calls dma_master for preparing the | |
1409 | * system hardware for the DMA transfer and initializes | |
1410 | * the current RxD with the length and the physical and | |
1411 | * virtual address of the fragment. Furthermore, it sets the | |
1412 | * STF and EOF bits depending on the frame status byte, | |
1413 | * switches the OWN flag of the RxD, so that it is owned by the | |
1414 | * adapter and issues an rx_start. | |
1415 | * | |
1416 | * para virt virtual pointer to the fragment | |
1417 | * len the length of the fragment | |
1418 | * frame_status status of the frame, see design description | |
1419 | * | |
1420 | * NOTE: It is possible to call this function with a fragment length | |
1421 | * of zero. | |
1422 | * | |
1423 | * END_MANUAL_ENTRY | |
1424 | */ | |
1425 | void hwm_rx_frag(struct s_smc *smc, char far *virt, u_long phys, int len, | |
1426 | int frame_status) | |
1427 | { | |
1428 | struct s_smt_fp_rxd volatile *r ; | |
1429 | u_int rbctrl ; | |
1430 | ||
1431 | NDD_TRACE("RHfB",virt,len,frame_status) ; | |
1432 | DB_RX("hwm_rx_frag: len = %d, frame_status = %x\n",len,frame_status,2) ; | |
1433 | r = smc->hw.fp.rx_q[QUEUE_R1].rx_curr_put ; | |
1434 | r->rxd_virt = virt ; | |
1435 | r->rxd_rbadr = AIX_REVERSE(phys) ; | |
1436 | rbctrl = AIX_REVERSE( (((u_long)frame_status & | |
1437 | (FIRST_FRAG|LAST_FRAG))<<26) | | |
1438 | (((u_long) frame_status & FIRST_FRAG) << 21) | | |
1439 | BMU_OWN | BMU_CHECK | BMU_EN_IRQ_EOF | len) ; | |
1440 | r->rxd_rbctrl = rbctrl ; | |
1441 | ||
1442 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORDEV) ; | |
1443 | outpd(ADDR(B0_R1_CSR),CSR_START) ; | |
1444 | smc->hw.fp.rx_q[QUEUE_R1].rx_free-- ; | |
1445 | smc->hw.fp.rx_q[QUEUE_R1].rx_used++ ; | |
1446 | smc->hw.fp.rx_q[QUEUE_R1].rx_curr_put = r->rxd_next ; | |
1447 | NDD_TRACE("RHfE",r,AIX_REVERSE(r->rxd_rbadr),0) ; | |
1448 | } | |
1449 | ||
1da177e4 LT |
1450 | /* |
1451 | * BEGINN_MANUAL_ENTRY(mac_drv_clear_rx_queue) | |
1452 | * | |
1453 | * void mac_drv_clear_rx_queue(smc) | |
1454 | * struct s_smc *smc ; | |
1455 | * | |
1456 | * function DOWNCALL (hardware module, hwmtm.c) | |
1457 | * mac_drv_clear_rx_queue is called by the OS-specific module | |
1458 | * after it has issued a card_stop. | |
1459 | * In this case, the frames in the receive queue are obsolete and | |
1460 | * should be removed. For removing mac_drv_clear_rx_queue | |
1461 | * calls dma_master for each RxD and mac_drv_clear_rxd for each | |
1462 | * receive buffer. | |
1463 | * | |
1464 | * NOTE: calling sequence card_stop: | |
1465 | * CLI_FBI(), card_stop(), | |
1466 | * mac_drv_clear_tx_queue(), mac_drv_clear_rx_queue(), | |
1467 | * | |
1468 | * NOTE: The caller is responsible that the BMUs are idle | |
1469 | * when this function is called. | |
1470 | * | |
1471 | * END_MANUAL_ENTRY | |
1472 | */ | |
1473 | void mac_drv_clear_rx_queue(struct s_smc *smc) | |
1474 | { | |
1475 | struct s_smt_fp_rxd volatile *r ; | |
1476 | struct s_smt_fp_rxd volatile *next_rxd ; | |
1477 | struct s_smt_rx_queue *queue ; | |
1478 | int frag_count ; | |
1479 | int i ; | |
1480 | ||
1481 | if (smc->hw.hw_state != STOPPED) { | |
1482 | SK_BREAK() ; | |
1483 | SMT_PANIC(smc,HWM_E0012,HWM_E0012_MSG) ; | |
1484 | return ; | |
1485 | } | |
1486 | ||
1487 | queue = smc->hw.fp.rx[QUEUE_R1] ; | |
1488 | DB_RX("clear_rx_queue",0,0,5) ; | |
1489 | ||
1490 | /* | |
1491 | * dma_complete and mac_drv_clear_rxd for all RxDs / receive buffers | |
1492 | */ | |
1493 | r = queue->rx_curr_get ; | |
1494 | while (queue->rx_used) { | |
1495 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
1496 | DB_RX("switch OWN bit of RxD 0x%x ",r,0,5) ; | |
1497 | r->rxd_rbctrl &= AIX_REVERSE(~BMU_OWN) ; | |
1498 | frag_count = 1 ; | |
1499 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORDEV) ; | |
1500 | r = r->rxd_next ; | |
1501 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
1502 | while (r != queue->rx_curr_put && | |
1503 | !(r->rxd_rbctrl & AIX_REVERSE(BMU_ST_BUF))) { | |
1504 | DB_RX("Check STF bit in %x",(void *)r,0,5) ; | |
1505 | r->rxd_rbctrl &= AIX_REVERSE(~BMU_OWN) ; | |
1506 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORDEV) ; | |
1507 | r = r->rxd_next ; | |
1508 | DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ; | |
1509 | frag_count++ ; | |
1510 | } | |
1511 | DB_RX("STF bit found",0,0,5) ; | |
1512 | next_rxd = r ; | |
1513 | ||
1514 | for (r=queue->rx_curr_get,i=frag_count; i ; r=r->rxd_next,i--){ | |
1515 | DB_RX("dma_complete for RxD %x",(void *)r,0,5) ; | |
1516 | dma_complete(smc,(union s_fp_descr volatile *)r,DMA_WR); | |
1517 | } | |
1518 | ||
1519 | DB_RX("mac_drv_clear_rxd: RxD %x frag_count %d ", | |
1520 | (void *)queue->rx_curr_get,frag_count,5) ; | |
1521 | mac_drv_clear_rxd(smc,queue->rx_curr_get,frag_count) ; | |
1522 | ||
1523 | queue->rx_curr_get = next_rxd ; | |
1524 | queue->rx_used -= frag_count ; | |
1525 | queue->rx_free += frag_count ; | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | ||
1530 | /* | |
1531 | ------------------------------------------------------------- | |
1532 | SEND FUNCTIONS: | |
1533 | ------------------------------------------------------------- | |
1534 | */ | |
1535 | ||
1536 | /* | |
1537 | * BEGIN_MANUAL_ENTRY(hwm_tx_init) | |
1538 | * int hwm_tx_init(smc,fc,frag_count,frame_len,frame_status) | |
1539 | * | |
1540 | * function DOWN_CALL (hardware module, hwmtm.c) | |
1541 | * hwm_tx_init checks if the frame can be sent through the | |
1542 | * corresponding send queue. | |
1543 | * | |
1544 | * para fc the frame control. To determine through which | |
1545 | * send queue the frame should be transmitted. | |
1546 | * 0x50 - 0x57: asynchronous LLC frame | |
1547 | * 0xD0 - 0xD7: synchronous LLC frame | |
1548 | * 0x41, 0x4F: SMT frame to the network | |
1549 | * 0x42: SMT frame to the network and to the local SMT | |
1550 | * 0x43: SMT frame to the local SMT | |
1551 | * frag_count count of the fragments for this frame | |
1552 | * frame_len length of the frame | |
1553 | * frame_status status of the frame, the send queue bit is already | |
1554 | * specified | |
1555 | * | |
1556 | * return frame_status | |
1557 | * | |
1558 | * END_MANUAL_ENTRY | |
1559 | */ | |
1560 | int hwm_tx_init(struct s_smc *smc, u_char fc, int frag_count, int frame_len, | |
1561 | int frame_status) | |
1562 | { | |
1563 | NDD_TRACE("THiB",fc,frag_count,frame_len) ; | |
1564 | smc->os.hwm.tx_p = smc->hw.fp.tx[frame_status & QUEUE_A0] ; | |
1565 | smc->os.hwm.tx_descr = TX_DESCRIPTOR | (((u_long)(frame_len-1)&3)<<27) ; | |
1566 | smc->os.hwm.tx_len = frame_len ; | |
1567 | DB_TX("hwm_tx_init: fc = %x, len = %d",fc,frame_len,3) ; | |
1568 | if ((fc & ~(FC_SYNC_BIT|FC_LLC_PRIOR)) == FC_ASYNC_LLC) { | |
1569 | frame_status |= LAN_TX ; | |
1570 | } | |
1571 | else { | |
1572 | switch (fc) { | |
1573 | case FC_SMT_INFO : | |
1574 | case FC_SMT_NSA : | |
1575 | frame_status |= LAN_TX ; | |
1576 | break ; | |
1577 | case FC_SMT_LOC : | |
1578 | frame_status |= LOC_TX ; | |
1579 | break ; | |
1580 | case FC_SMT_LAN_LOC : | |
1581 | frame_status |= LAN_TX | LOC_TX ; | |
1582 | break ; | |
1583 | default : | |
1584 | SMT_PANIC(smc,HWM_E0010,HWM_E0010_MSG) ; | |
1585 | } | |
1586 | } | |
1587 | if (!smc->hw.mac_ring_is_up) { | |
1588 | frame_status &= ~LAN_TX ; | |
1589 | frame_status |= RING_DOWN ; | |
1590 | DB_TX("Ring is down: terminate LAN_TX",0,0,2) ; | |
1591 | } | |
1592 | if (frag_count > smc->os.hwm.tx_p->tx_free) { | |
1593 | #ifndef NDIS_OS2 | |
1594 | mac_drv_clear_txd(smc) ; | |
1595 | if (frag_count > smc->os.hwm.tx_p->tx_free) { | |
1596 | DB_TX("Out of TxDs, terminate LAN_TX",0,0,2) ; | |
1597 | frame_status &= ~LAN_TX ; | |
1598 | frame_status |= OUT_OF_TXD ; | |
1599 | } | |
1600 | #else | |
1601 | DB_TX("Out of TxDs, terminate LAN_TX",0,0,2) ; | |
1602 | frame_status &= ~LAN_TX ; | |
1603 | frame_status |= OUT_OF_TXD ; | |
1604 | #endif | |
1605 | } | |
1606 | DB_TX("frame_status = %x",frame_status,0,3) ; | |
1607 | NDD_TRACE("THiE",frame_status,smc->os.hwm.tx_p->tx_free,0) ; | |
1608 | return(frame_status) ; | |
1609 | } | |
1610 | ||
1611 | /* | |
1612 | * BEGIN_MANUAL_ENTRY(hwm_tx_frag) | |
1613 | * void hwm_tx_frag(smc,virt,phys,len,frame_status) | |
1614 | * | |
1615 | * function DOWNCALL (hardware module, hwmtm.c) | |
1616 | * If the frame should be sent to the LAN, this function calls | |
1617 | * dma_master, fills the current TxD with the virtual and the | |
1618 | * physical address, sets the STF and EOF bits dependent on | |
1619 | * the frame status, and requests the BMU to start the | |
1620 | * transmit. | |
1621 | * If the frame should be sent to the local SMT, an SMT_MBuf | |
1622 | * is allocated if the FIRST_FRAG bit is set in the frame_status. | |
1623 | * The fragment of the frame is copied into the SMT MBuf. | |
1624 | * The function smt_received_pack is called if the LAST_FRAG | |
1625 | * bit is set in the frame_status word. | |
1626 | * | |
1627 | * para virt virtual pointer to the fragment | |
1628 | * len the length of the fragment | |
1629 | * frame_status status of the frame, see design description | |
1630 | * | |
1631 | * return nothing returned, no parameter is modified | |
1632 | * | |
1633 | * NOTE: It is possible to invoke this macro with a fragment length | |
1634 | * of zero. | |
1635 | * | |
1636 | * END_MANUAL_ENTRY | |
1637 | */ | |
1638 | void hwm_tx_frag(struct s_smc *smc, char far *virt, u_long phys, int len, | |
1639 | int frame_status) | |
1640 | { | |
1641 | struct s_smt_fp_txd volatile *t ; | |
1642 | struct s_smt_tx_queue *queue ; | |
1643 | u_int tbctrl ; | |
1644 | ||
1645 | queue = smc->os.hwm.tx_p ; | |
1646 | ||
1647 | NDD_TRACE("THfB",virt,len,frame_status) ; | |
1648 | /* Bug fix: AF / May 31 1999 (#missing) | |
1649 | * snmpinfo problem reported by IBM is caused by invalid | |
1650 | * t-pointer (txd) if LAN_TX is not set but LOC_TX only. | |
1651 | * Set: t = queue->tx_curr_put here ! | |
1652 | */ | |
1653 | t = queue->tx_curr_put ; | |
1654 | ||
1655 | DB_TX("hwm_tx_frag: len = %d, frame_status = %x ",len,frame_status,2) ; | |
1656 | if (frame_status & LAN_TX) { | |
1657 | /* '*t' is already defined */ | |
1658 | DB_TX("LAN_TX: TxD = %x, virt = %x ",t,virt,3) ; | |
1659 | t->txd_virt = virt ; | |
1660 | t->txd_txdscr = AIX_REVERSE(smc->os.hwm.tx_descr) ; | |
1661 | t->txd_tbadr = AIX_REVERSE(phys) ; | |
1662 | tbctrl = AIX_REVERSE((((u_long)frame_status & | |
1663 | (FIRST_FRAG|LAST_FRAG|EN_IRQ_EOF))<< 26) | | |
1664 | BMU_OWN|BMU_CHECK |len) ; | |
1665 | t->txd_tbctrl = tbctrl ; | |
1666 | ||
1667 | #ifndef AIX | |
1668 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ; | |
1669 | outpd(queue->tx_bmu_ctl,CSR_START) ; | |
1670 | #else /* ifndef AIX */ | |
1671 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ; | |
1672 | if (frame_status & QUEUE_A0) { | |
1673 | outpd(ADDR(B0_XA_CSR),CSR_START) ; | |
1674 | } | |
1675 | else { | |
1676 | outpd(ADDR(B0_XS_CSR),CSR_START) ; | |
1677 | } | |
1678 | #endif | |
1679 | queue->tx_free-- ; | |
1680 | queue->tx_used++ ; | |
1681 | queue->tx_curr_put = t->txd_next ; | |
1682 | if (frame_status & LAST_FRAG) { | |
1683 | smc->mib.m[MAC0].fddiMACTransmit_Ct++ ; | |
1684 | } | |
1685 | } | |
1686 | if (frame_status & LOC_TX) { | |
1687 | DB_TX("LOC_TX: ",0,0,3) ; | |
1688 | if (frame_status & FIRST_FRAG) { | |
1689 | if(!(smc->os.hwm.tx_mb = smt_get_mbuf(smc))) { | |
1690 | smc->hw.fp.err_stats.err_no_buf++ ; | |
1691 | DB_TX("No SMbuf; transmit terminated",0,0,4) ; | |
1692 | } | |
1693 | else { | |
1694 | smc->os.hwm.tx_data = | |
1695 | smtod(smc->os.hwm.tx_mb,char *) - 1 ; | |
1696 | #ifdef USE_OS_CPY | |
1697 | #ifdef PASS_1ST_TXD_2_TX_COMP | |
1698 | hwm_cpy_txd2mb(t,smc->os.hwm.tx_data, | |
1699 | smc->os.hwm.tx_len) ; | |
1700 | #endif | |
1701 | #endif | |
1702 | } | |
1703 | } | |
1704 | if (smc->os.hwm.tx_mb) { | |
1705 | #ifndef USE_OS_CPY | |
1706 | DB_TX("copy fragment into MBuf ",0,0,3) ; | |
1707 | memcpy(smc->os.hwm.tx_data,virt,len) ; | |
1708 | smc->os.hwm.tx_data += len ; | |
1709 | #endif | |
1710 | if (frame_status & LAST_FRAG) { | |
1711 | #ifdef USE_OS_CPY | |
1712 | #ifndef PASS_1ST_TXD_2_TX_COMP | |
1713 | /* | |
1714 | * hwm_cpy_txd2mb(txd,data,len) copies 'len' | |
1715 | * bytes from the virtual pointer in 'rxd' | |
1716 | * to 'data'. The virtual pointer of the | |
1717 | * os-specific tx-buffer should be written | |
1718 | * in the LAST txd. | |
1719 | */ | |
1720 | hwm_cpy_txd2mb(t,smc->os.hwm.tx_data, | |
1721 | smc->os.hwm.tx_len) ; | |
1722 | #endif /* nPASS_1ST_TXD_2_TX_COMP */ | |
1723 | #endif /* USE_OS_CPY */ | |
1724 | smc->os.hwm.tx_data = | |
1725 | smtod(smc->os.hwm.tx_mb,char *) - 1 ; | |
1726 | *(char *)smc->os.hwm.tx_mb->sm_data = | |
1727 | *smc->os.hwm.tx_data ; | |
1728 | smc->os.hwm.tx_data++ ; | |
1729 | smc->os.hwm.tx_mb->sm_len = | |
1730 | smc->os.hwm.tx_len - 1 ; | |
1731 | DB_TX("pass LLC frame to SMT ",0,0,3) ; | |
1732 | smt_received_pack(smc,smc->os.hwm.tx_mb, | |
1733 | RD_FS_LOCAL) ; | |
1734 | } | |
1735 | } | |
1736 | } | |
1737 | NDD_TRACE("THfE",t,queue->tx_free,0) ; | |
1738 | } | |
1739 | ||
1740 | ||
1741 | /* | |
1742 | * queues a receive for later send | |
1743 | */ | |
1744 | static void queue_llc_rx(struct s_smc *smc, SMbuf *mb) | |
1745 | { | |
1746 | DB_GEN("queue_llc_rx: mb = %x",(void *)mb,0,4) ; | |
1747 | smc->os.hwm.queued_rx_frames++ ; | |
1748 | mb->sm_next = (SMbuf *)NULL ; | |
1749 | if (smc->os.hwm.llc_rx_pipe == 0) { | |
1750 | smc->os.hwm.llc_rx_pipe = mb ; | |
1751 | } | |
1752 | else { | |
1753 | smc->os.hwm.llc_rx_tail->sm_next = mb ; | |
1754 | } | |
1755 | smc->os.hwm.llc_rx_tail = mb ; | |
1756 | ||
1757 | /* | |
1758 | * force an timer IRQ to receive the data | |
1759 | */ | |
1760 | if (!smc->os.hwm.isr_flag) { | |
1761 | smt_force_irq(smc) ; | |
1762 | } | |
1763 | } | |
1764 | ||
1765 | /* | |
1766 | * get a SMbuf from the llc_rx_queue | |
1767 | */ | |
1768 | static SMbuf *get_llc_rx(struct s_smc *smc) | |
1769 | { | |
1770 | SMbuf *mb ; | |
1771 | ||
1772 | if ((mb = smc->os.hwm.llc_rx_pipe)) { | |
1773 | smc->os.hwm.queued_rx_frames-- ; | |
1774 | smc->os.hwm.llc_rx_pipe = mb->sm_next ; | |
1775 | } | |
1776 | DB_GEN("get_llc_rx: mb = 0x%x",(void *)mb,0,4) ; | |
1777 | return(mb) ; | |
1778 | } | |
1779 | ||
1780 | /* | |
1781 | * queues a transmit SMT MBuf during the time were the MBuf is | |
1782 | * queued the TxD ring | |
1783 | */ | |
1784 | static void queue_txd_mb(struct s_smc *smc, SMbuf *mb) | |
1785 | { | |
1786 | DB_GEN("_rx: queue_txd_mb = %x",(void *)mb,0,4) ; | |
1787 | smc->os.hwm.queued_txd_mb++ ; | |
1788 | mb->sm_next = (SMbuf *)NULL ; | |
1789 | if (smc->os.hwm.txd_tx_pipe == 0) { | |
1790 | smc->os.hwm.txd_tx_pipe = mb ; | |
1791 | } | |
1792 | else { | |
1793 | smc->os.hwm.txd_tx_tail->sm_next = mb ; | |
1794 | } | |
1795 | smc->os.hwm.txd_tx_tail = mb ; | |
1796 | } | |
1797 | ||
1798 | /* | |
1799 | * get a SMbuf from the txd_tx_queue | |
1800 | */ | |
1801 | static SMbuf *get_txd_mb(struct s_smc *smc) | |
1802 | { | |
1803 | SMbuf *mb ; | |
1804 | ||
1805 | if ((mb = smc->os.hwm.txd_tx_pipe)) { | |
1806 | smc->os.hwm.queued_txd_mb-- ; | |
1807 | smc->os.hwm.txd_tx_pipe = mb->sm_next ; | |
1808 | } | |
1809 | DB_GEN("get_txd_mb: mb = 0x%x",(void *)mb,0,4) ; | |
1810 | return(mb) ; | |
1811 | } | |
1812 | ||
1813 | /* | |
1814 | * SMT Send function | |
1815 | */ | |
1816 | void smt_send_mbuf(struct s_smc *smc, SMbuf *mb, int fc) | |
1817 | { | |
1818 | char far *data ; | |
1819 | int len ; | |
1820 | int n ; | |
1821 | int i ; | |
1822 | int frag_count ; | |
1823 | int frame_status ; | |
1824 | SK_LOC_DECL(char far,*virt[3]) ; | |
1825 | int frag_len[3] ; | |
1826 | struct s_smt_tx_queue *queue ; | |
1827 | struct s_smt_fp_txd volatile *t ; | |
1828 | u_long phys ; | |
1829 | u_int tbctrl ; | |
1830 | ||
1831 | NDD_TRACE("THSB",mb,fc,0) ; | |
1832 | DB_TX("smt_send_mbuf: mb = 0x%x, fc = 0x%x",mb,fc,4) ; | |
1833 | ||
1834 | mb->sm_off-- ; /* set to fc */ | |
1835 | mb->sm_len++ ; /* + fc */ | |
1836 | data = smtod(mb,char *) ; | |
1837 | *data = fc ; | |
1838 | if (fc == FC_SMT_LOC) | |
1839 | *data = FC_SMT_INFO ; | |
1840 | ||
1841 | /* | |
1842 | * determine the frag count and the virt addresses of the frags | |
1843 | */ | |
1844 | frag_count = 0 ; | |
1845 | len = mb->sm_len ; | |
1846 | while (len) { | |
1847 | n = SMT_PAGESIZE - ((long)data & (SMT_PAGESIZE-1)) ; | |
1848 | if (n >= len) { | |
1849 | n = len ; | |
1850 | } | |
1851 | DB_TX("frag: virt/len = 0x%x/%d ",(void *)data,n,5) ; | |
1852 | virt[frag_count] = data ; | |
1853 | frag_len[frag_count] = n ; | |
1854 | frag_count++ ; | |
1855 | len -= n ; | |
1856 | data += n ; | |
1857 | } | |
1858 | ||
1859 | /* | |
1860 | * determine the frame status | |
1861 | */ | |
1862 | queue = smc->hw.fp.tx[QUEUE_A0] ; | |
1863 | if (fc == FC_BEACON || fc == FC_SMT_LOC) { | |
1864 | frame_status = LOC_TX ; | |
1865 | } | |
1866 | else { | |
1867 | frame_status = LAN_TX ; | |
1868 | if ((smc->os.hwm.pass_NSA &&(fc == FC_SMT_NSA)) || | |
1869 | (smc->os.hwm.pass_SMT &&(fc == FC_SMT_INFO))) | |
1870 | frame_status |= LOC_TX ; | |
1871 | } | |
1872 | ||
1873 | if (!smc->hw.mac_ring_is_up || frag_count > queue->tx_free) { | |
1874 | frame_status &= ~LAN_TX; | |
1875 | if (frame_status) { | |
1876 | DB_TX("Ring is down: terminate LAN_TX",0,0,2) ; | |
1877 | } | |
1878 | else { | |
1879 | DB_TX("Ring is down: terminate transmission",0,0,2) ; | |
1880 | smt_free_mbuf(smc,mb) ; | |
1881 | return ; | |
1882 | } | |
1883 | } | |
1884 | DB_TX("frame_status = 0x%x ",frame_status,0,5) ; | |
1885 | ||
1886 | if ((frame_status & LAN_TX) && (frame_status & LOC_TX)) { | |
1887 | mb->sm_use_count = 2 ; | |
1888 | } | |
1889 | ||
1890 | if (frame_status & LAN_TX) { | |
1891 | t = queue->tx_curr_put ; | |
1892 | frame_status |= FIRST_FRAG ; | |
1893 | for (i = 0; i < frag_count; i++) { | |
1894 | DB_TX("init TxD = 0x%x",(void *)t,0,5) ; | |
1895 | if (i == frag_count-1) { | |
1896 | frame_status |= LAST_FRAG ; | |
1897 | t->txd_txdscr = AIX_REVERSE(TX_DESCRIPTOR | | |
1898 | (((u_long)(mb->sm_len-1)&3) << 27)) ; | |
1899 | } | |
1900 | t->txd_virt = virt[i] ; | |
1901 | phys = dma_master(smc, (void far *)virt[i], | |
1902 | frag_len[i], DMA_RD|SMT_BUF) ; | |
1903 | t->txd_tbadr = AIX_REVERSE(phys) ; | |
1904 | tbctrl = AIX_REVERSE((((u_long) frame_status & | |
1905 | (FIRST_FRAG|LAST_FRAG)) << 26) | | |
1906 | BMU_OWN | BMU_CHECK | BMU_SMT_TX |frag_len[i]) ; | |
1907 | t->txd_tbctrl = tbctrl ; | |
1908 | #ifndef AIX | |
1909 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ; | |
1910 | outpd(queue->tx_bmu_ctl,CSR_START) ; | |
1911 | #else | |
1912 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ; | |
1913 | outpd(ADDR(B0_XA_CSR),CSR_START) ; | |
1914 | #endif | |
1915 | frame_status &= ~FIRST_FRAG ; | |
1916 | queue->tx_curr_put = t = t->txd_next ; | |
1917 | queue->tx_free-- ; | |
1918 | queue->tx_used++ ; | |
1919 | } | |
1920 | smc->mib.m[MAC0].fddiMACTransmit_Ct++ ; | |
1921 | queue_txd_mb(smc,mb) ; | |
1922 | } | |
1923 | ||
1924 | if (frame_status & LOC_TX) { | |
1925 | DB_TX("pass Mbuf to LLC queue",0,0,5) ; | |
1926 | queue_llc_rx(smc,mb) ; | |
1927 | } | |
1928 | ||
1929 | /* | |
1930 | * We need to unqueue the free SMT_MBUFs here, because it may | |
1931 | * be that the SMT want's to send more than 1 frame for one down call | |
1932 | */ | |
1933 | mac_drv_clear_txd(smc) ; | |
1934 | NDD_TRACE("THSE",t,queue->tx_free,frag_count) ; | |
1935 | } | |
1936 | ||
1937 | /* BEGIN_MANUAL_ENTRY(mac_drv_clear_txd) | |
1938 | * void mac_drv_clear_txd(smc) | |
1939 | * | |
1940 | * function DOWNCALL (hardware module, hwmtm.c) | |
1941 | * mac_drv_clear_txd searches in both send queues for TxD's | |
1942 | * which were finished by the adapter. It calls dma_complete | |
1943 | * for each TxD. If the last fragment of an LLC frame is | |
1944 | * reached, it calls mac_drv_tx_complete to release the | |
1945 | * send buffer. | |
1946 | * | |
1947 | * return nothing | |
1948 | * | |
1949 | * END_MANUAL_ENTRY | |
1950 | */ | |
7aa55fce | 1951 | static void mac_drv_clear_txd(struct s_smc *smc) |
1da177e4 LT |
1952 | { |
1953 | struct s_smt_tx_queue *queue ; | |
1954 | struct s_smt_fp_txd volatile *t1 ; | |
1955 | struct s_smt_fp_txd volatile *t2 = NULL ; | |
1956 | SMbuf *mb ; | |
1957 | u_long tbctrl ; | |
1958 | int i ; | |
1959 | int frag_count ; | |
1960 | int n ; | |
1961 | ||
1962 | NDD_TRACE("THcB",0,0,0) ; | |
1963 | for (i = QUEUE_S; i <= QUEUE_A0; i++) { | |
1964 | queue = smc->hw.fp.tx[i] ; | |
1965 | t1 = queue->tx_curr_get ; | |
1966 | DB_TX("clear_txd: QUEUE = %d (0=sync/1=async)",i,0,5) ; | |
1967 | ||
1968 | for ( ; ; ) { | |
1969 | frag_count = 0 ; | |
1970 | ||
1971 | do { | |
1972 | DRV_BUF_FLUSH(t1,DDI_DMA_SYNC_FORCPU) ; | |
1973 | DB_TX("check OWN/EOF bit of TxD 0x%x",t1,0,5) ; | |
1974 | tbctrl = CR_READ(t1->txd_tbctrl) ; | |
1975 | tbctrl = AIX_REVERSE(tbctrl) ; | |
1976 | ||
1977 | if (tbctrl & BMU_OWN || !queue->tx_used){ | |
1978 | DB_TX("End of TxDs queue %d",i,0,4) ; | |
1979 | goto free_next_queue ; /* next queue */ | |
1980 | } | |
1981 | t1 = t1->txd_next ; | |
1982 | frag_count++ ; | |
1983 | } while (!(tbctrl & BMU_EOF)) ; | |
1984 | ||
1985 | t1 = queue->tx_curr_get ; | |
1986 | for (n = frag_count; n; n--) { | |
1987 | tbctrl = AIX_REVERSE(t1->txd_tbctrl) ; | |
1988 | dma_complete(smc, | |
1989 | (union s_fp_descr volatile *) t1, | |
1990 | (int) (DMA_RD | | |
1991 | ((tbctrl & BMU_SMT_TX) >> 18))) ; | |
1992 | t2 = t1 ; | |
1993 | t1 = t1->txd_next ; | |
1994 | } | |
1995 | ||
1996 | if (tbctrl & BMU_SMT_TX) { | |
1997 | mb = get_txd_mb(smc) ; | |
1998 | smt_free_mbuf(smc,mb) ; | |
1999 | } | |
2000 | else { | |
2001 | #ifndef PASS_1ST_TXD_2_TX_COMP | |
2002 | DB_TX("mac_drv_tx_comp for TxD 0x%x",t2,0,4) ; | |
2003 | mac_drv_tx_complete(smc,t2) ; | |
2004 | #else | |
2005 | DB_TX("mac_drv_tx_comp for TxD 0x%x", | |
2006 | queue->tx_curr_get,0,4) ; | |
2007 | mac_drv_tx_complete(smc,queue->tx_curr_get) ; | |
2008 | #endif | |
2009 | } | |
2010 | queue->tx_curr_get = t1 ; | |
2011 | queue->tx_free += frag_count ; | |
2012 | queue->tx_used -= frag_count ; | |
2013 | } | |
2014 | free_next_queue: ; | |
2015 | } | |
2016 | NDD_TRACE("THcE",0,0,0) ; | |
2017 | } | |
2018 | ||
2019 | /* | |
2020 | * BEGINN_MANUAL_ENTRY(mac_drv_clear_tx_queue) | |
2021 | * | |
2022 | * void mac_drv_clear_tx_queue(smc) | |
2023 | * struct s_smc *smc ; | |
2024 | * | |
2025 | * function DOWNCALL (hardware module, hwmtm.c) | |
2026 | * mac_drv_clear_tx_queue is called from the SMT when | |
2027 | * the RMT state machine has entered the ISOLATE state. | |
2028 | * This function is also called by the os-specific module | |
2029 | * after it has called the function card_stop(). | |
2030 | * In this case, the frames in the send queues are obsolete and | |
2031 | * should be removed. | |
2032 | * | |
2033 | * note calling sequence: | |
2034 | * CLI_FBI(), card_stop(), | |
2035 | * mac_drv_clear_tx_queue(), mac_drv_clear_rx_queue(), | |
2036 | * | |
2037 | * NOTE: The caller is responsible that the BMUs are idle | |
2038 | * when this function is called. | |
2039 | * | |
2040 | * END_MANUAL_ENTRY | |
2041 | */ | |
2042 | void mac_drv_clear_tx_queue(struct s_smc *smc) | |
2043 | { | |
2044 | struct s_smt_fp_txd volatile *t ; | |
2045 | struct s_smt_tx_queue *queue ; | |
2046 | int tx_used ; | |
2047 | int i ; | |
2048 | ||
2049 | if (smc->hw.hw_state != STOPPED) { | |
2050 | SK_BREAK() ; | |
2051 | SMT_PANIC(smc,HWM_E0011,HWM_E0011_MSG) ; | |
2052 | return ; | |
2053 | } | |
2054 | ||
2055 | for (i = QUEUE_S; i <= QUEUE_A0; i++) { | |
2056 | queue = smc->hw.fp.tx[i] ; | |
2057 | DB_TX("clear_tx_queue: QUEUE = %d (0=sync/1=async)",i,0,5) ; | |
2058 | ||
2059 | /* | |
2060 | * switch the OWN bit of all pending frames to the host | |
2061 | */ | |
2062 | t = queue->tx_curr_get ; | |
2063 | tx_used = queue->tx_used ; | |
2064 | while (tx_used) { | |
2065 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORCPU) ; | |
2066 | DB_TX("switch OWN bit of TxD 0x%x ",t,0,5) ; | |
2067 | t->txd_tbctrl &= AIX_REVERSE(~BMU_OWN) ; | |
2068 | DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ; | |
2069 | t = t->txd_next ; | |
2070 | tx_used-- ; | |
2071 | } | |
2072 | } | |
2073 | ||
2074 | /* | |
2075 | * release all TxD's for both send queues | |
2076 | */ | |
2077 | mac_drv_clear_txd(smc) ; | |
2078 | ||
2079 | for (i = QUEUE_S; i <= QUEUE_A0; i++) { | |
2080 | queue = smc->hw.fp.tx[i] ; | |
2081 | t = queue->tx_curr_get ; | |
2082 | ||
2083 | /* | |
2084 | * write the phys pointer of the NEXT descriptor into the | |
2085 | * BMU's current address descriptor pointer and set | |
2086 | * tx_curr_get and tx_curr_put to this position | |
2087 | */ | |
2088 | if (i == QUEUE_S) { | |
2089 | outpd(ADDR(B5_XS_DA),AIX_REVERSE(t->txd_ntdadr)) ; | |
2090 | } | |
2091 | else { | |
2092 | outpd(ADDR(B5_XA_DA),AIX_REVERSE(t->txd_ntdadr)) ; | |
2093 | } | |
2094 | ||
2095 | queue->tx_curr_put = queue->tx_curr_get->txd_next ; | |
2096 | queue->tx_curr_get = queue->tx_curr_put ; | |
2097 | } | |
2098 | } | |
2099 | ||
2100 | ||
2101 | /* | |
2102 | ------------------------------------------------------------- | |
2103 | TEST FUNCTIONS: | |
2104 | ------------------------------------------------------------- | |
2105 | */ | |
2106 | ||
2107 | #ifdef DEBUG | |
2108 | /* | |
2109 | * BEGIN_MANUAL_ENTRY(mac_drv_debug_lev) | |
2110 | * void mac_drv_debug_lev(smc,flag,lev) | |
2111 | * | |
2112 | * function DOWNCALL (drvsr.c) | |
2113 | * To get a special debug info the user can assign a debug level | |
2114 | * to any debug flag. | |
2115 | * | |
2116 | * para flag debug flag, possible values are: | |
2117 | * = 0: reset all debug flags (the defined level is | |
2118 | * ignored) | |
2119 | * = 1: debug.d_smtf | |
2120 | * = 2: debug.d_smt | |
2121 | * = 3: debug.d_ecm | |
2122 | * = 4: debug.d_rmt | |
2123 | * = 5: debug.d_cfm | |
2124 | * = 6: debug.d_pcm | |
2125 | * | |
2126 | * = 10: debug.d_os.hwm_rx (hardware module receive path) | |
2127 | * = 11: debug.d_os.hwm_tx(hardware module transmit path) | |
2128 | * = 12: debug.d_os.hwm_gen(hardware module general flag) | |
2129 | * | |
2130 | * lev debug level | |
2131 | * | |
2132 | * END_MANUAL_ENTRY | |
2133 | */ | |
2134 | void mac_drv_debug_lev(struct s_smc *smc, int flag, int lev) | |
2135 | { | |
2136 | switch(flag) { | |
2137 | case (int)NULL: | |
2138 | DB_P.d_smtf = DB_P.d_smt = DB_P.d_ecm = DB_P.d_rmt = 0 ; | |
2139 | DB_P.d_cfm = 0 ; | |
2140 | DB_P.d_os.hwm_rx = DB_P.d_os.hwm_tx = DB_P.d_os.hwm_gen = 0 ; | |
2141 | #ifdef SBA | |
2142 | DB_P.d_sba = 0 ; | |
2143 | #endif | |
2144 | #ifdef ESS | |
2145 | DB_P.d_ess = 0 ; | |
2146 | #endif | |
2147 | break ; | |
2148 | case DEBUG_SMTF: | |
2149 | DB_P.d_smtf = lev ; | |
2150 | break ; | |
2151 | case DEBUG_SMT: | |
2152 | DB_P.d_smt = lev ; | |
2153 | break ; | |
2154 | case DEBUG_ECM: | |
2155 | DB_P.d_ecm = lev ; | |
2156 | break ; | |
2157 | case DEBUG_RMT: | |
2158 | DB_P.d_rmt = lev ; | |
2159 | break ; | |
2160 | case DEBUG_CFM: | |
2161 | DB_P.d_cfm = lev ; | |
2162 | break ; | |
2163 | case DEBUG_PCM: | |
2164 | DB_P.d_pcm = lev ; | |
2165 | break ; | |
2166 | case DEBUG_SBA: | |
2167 | #ifdef SBA | |
2168 | DB_P.d_sba = lev ; | |
2169 | #endif | |
2170 | break ; | |
2171 | case DEBUG_ESS: | |
2172 | #ifdef ESS | |
2173 | DB_P.d_ess = lev ; | |
2174 | #endif | |
2175 | break ; | |
2176 | case DB_HWM_RX: | |
2177 | DB_P.d_os.hwm_rx = lev ; | |
2178 | break ; | |
2179 | case DB_HWM_TX: | |
2180 | DB_P.d_os.hwm_tx = lev ; | |
2181 | break ; | |
2182 | case DB_HWM_GEN: | |
2183 | DB_P.d_os.hwm_gen = lev ; | |
2184 | break ; | |
2185 | default: | |
2186 | break ; | |
2187 | } | |
2188 | } | |
2189 | #endif |