1 | /* $NetBSD: am79900.c,v 1.24 2015/04/13 16:33:24 riastradh Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1997 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Jason R. Thorpe. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /*- |
33 | * Copyright (c) 1992, 1993 |
34 | * The Regents of the University of California. All rights reserved. |
35 | * |
36 | * This code is derived from software contributed to Berkeley by |
37 | * Ralph Campbell and Rick Macklem. |
38 | * |
39 | * Redistribution and use in source and binary forms, with or without |
40 | * modification, are permitted provided that the following conditions |
41 | * are met: |
42 | * 1. Redistributions of source code must retain the above copyright |
43 | * notice, this list of conditions and the following disclaimer. |
44 | * 2. Redistributions in binary form must reproduce the above copyright |
45 | * notice, this list of conditions and the following disclaimer in the |
46 | * documentation and/or other materials provided with the distribution. |
47 | * 3. Neither the name of the University nor the names of its contributors |
48 | * may be used to endorse or promote products derived from this software |
49 | * without specific prior written permission. |
50 | * |
51 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
52 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
53 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
54 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
55 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
56 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
57 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
58 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
59 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
60 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
61 | * SUCH DAMAGE. |
62 | * |
63 | * @(#)if_le.c 8.2 (Berkeley) 11/16/93 |
64 | */ |
65 | |
66 | /*- |
67 | * Copyright (c) 1998 |
68 | * Matthias Drochner. All rights reserved. |
69 | * Copyright (c) 1995 Charles M. Hannum. All rights reserved. |
70 | * |
71 | * This code is derived from software contributed to Berkeley by |
72 | * Ralph Campbell and Rick Macklem. |
73 | * |
74 | * Redistribution and use in source and binary forms, with or without |
75 | * modification, are permitted provided that the following conditions |
76 | * are met: |
77 | * 1. Redistributions of source code must retain the above copyright |
78 | * notice, this list of conditions and the following disclaimer. |
79 | * 2. Redistributions in binary form must reproduce the above copyright |
80 | * notice, this list of conditions and the following disclaimer in the |
81 | * documentation and/or other materials provided with the distribution. |
82 | * 3. All advertising materials mentioning features or use of this software |
83 | * must display the following acknowledgement: |
84 | * This product includes software developed by the University of |
85 | * California, Berkeley and its contributors. |
86 | * 4. Neither the name of the University nor the names of its contributors |
87 | * may be used to endorse or promote products derived from this software |
88 | * without specific prior written permission. |
89 | * |
90 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
91 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
92 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
93 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
94 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
95 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
96 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
97 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
98 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
99 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
100 | * SUCH DAMAGE. |
101 | * |
102 | * @(#)if_le.c 8.2 (Berkeley) 11/16/93 |
103 | */ |
104 | |
105 | #include <sys/cdefs.h> |
106 | __KERNEL_RCSID(0, "$NetBSD: am79900.c,v 1.24 2015/04/13 16:33:24 riastradh Exp $" ); |
107 | |
108 | #include <sys/param.h> |
109 | #include <sys/systm.h> |
110 | #include <sys/mbuf.h> |
111 | #include <sys/syslog.h> |
112 | #include <sys/socket.h> |
113 | #include <sys/device.h> |
114 | #include <sys/malloc.h> |
115 | #include <sys/ioctl.h> |
116 | #include <sys/errno.h> |
117 | #include <sys/rndsource.h> |
118 | |
119 | #include <net/if.h> |
120 | #include <net/if_dl.h> |
121 | #include <net/if_ether.h> |
122 | #include <net/if_media.h> |
123 | |
124 | #include <net/bpf.h> |
125 | #include <net/bpfdesc.h> |
126 | |
127 | #include <dev/ic/lancereg.h> |
128 | #include <dev/ic/lancevar.h> |
129 | #include <dev/ic/am79900reg.h> |
130 | #include <dev/ic/am79900var.h> |
131 | |
132 | static void am79900_meminit(struct lance_softc *); |
133 | static void am79900_start(struct ifnet *); |
134 | |
135 | #if defined(_KERNEL_OPT) |
136 | #include "opt_ddb.h" |
137 | #endif |
138 | |
139 | #ifdef LEDEBUG |
140 | static void am79900_recv_print(struct lance_softc *, int); |
141 | static void am79900_xmit_print(struct lance_softc *, int); |
142 | #endif |
143 | |
144 | #define ifp (&sc->sc_ethercom.ec_if) |
145 | |
146 | void |
147 | am79900_config(struct am79900_softc *sc) |
148 | { |
149 | int mem, i; |
150 | |
151 | sc->lsc.sc_meminit = am79900_meminit; |
152 | sc->lsc.sc_start = am79900_start; |
153 | |
154 | lance_config(&sc->lsc); |
155 | |
156 | mem = 0; |
157 | sc->lsc.sc_initaddr = mem; |
158 | mem += sizeof(struct leinit); |
159 | sc->lsc.sc_rmdaddr = mem; |
160 | mem += sizeof(struct lermd) * sc->lsc.sc_nrbuf; |
161 | sc->lsc.sc_tmdaddr = mem; |
162 | mem += sizeof(struct letmd) * sc->lsc.sc_ntbuf; |
163 | for (i = 0; i < sc->lsc.sc_nrbuf; i++, mem += LEBLEN) |
164 | sc->lsc.sc_rbufaddr[i] = mem; |
165 | for (i = 0; i < sc->lsc.sc_ntbuf; i++, mem += LEBLEN) |
166 | sc->lsc.sc_tbufaddr[i] = mem; |
167 | |
168 | if (mem > sc->lsc.sc_memsize) |
169 | panic("%s: memsize" , device_xname(sc->lsc.sc_dev)); |
170 | } |
171 | |
172 | /* |
173 | * Set up the initialization block and the descriptor rings. |
174 | */ |
175 | static void |
176 | am79900_meminit(struct lance_softc *sc) |
177 | { |
178 | u_long a; |
179 | int bix; |
180 | struct leinit init; |
181 | struct lermd rmd; |
182 | struct letmd tmd; |
183 | uint8_t *myaddr; |
184 | |
185 | if (ifp->if_flags & IFF_PROMISC) |
186 | init.init_mode = LE_MODE_NORMAL | LE_MODE_PROM; |
187 | else |
188 | init.init_mode = LE_MODE_NORMAL; |
189 | if (sc->sc_initmodemedia == 1) |
190 | init.init_mode |= LE_MODE_PSEL0; |
191 | |
192 | init.init_mode |= ((ffs(sc->sc_ntbuf) - 1) << 28) |
193 | | ((ffs(sc->sc_nrbuf) - 1) << 20); |
194 | |
195 | /* |
196 | * Update our private copy of the Ethernet address. |
197 | * We NEED the copy so we can ensure its alignment! |
198 | */ |
199 | memcpy(sc->sc_enaddr, CLLADDR(ifp->if_sadl), ETHER_ADDR_LEN); |
200 | myaddr = sc->sc_enaddr; |
201 | |
202 | init.init_padr[0] = myaddr[0] | (myaddr[1] << 8) |
203 | | (myaddr[2] << 16) | (myaddr[3] << 24); |
204 | init.init_padr[1] = myaddr[4] | (myaddr[5] << 8); |
205 | lance_setladrf(&sc->sc_ethercom, init.init_ladrf); |
206 | |
207 | sc->sc_last_rd = 0; |
208 | sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; |
209 | |
210 | a = sc->sc_addr + LE_RMDADDR(sc, 0); |
211 | init.init_rdra = a; |
212 | |
213 | a = sc->sc_addr + LE_TMDADDR(sc, 0); |
214 | init.init_tdra = a; |
215 | |
216 | (*sc->sc_copytodesc)(sc, &init, LE_INITADDR(sc), sizeof(init)); |
217 | |
218 | /* |
219 | * Set up receive ring descriptors. |
220 | */ |
221 | for (bix = 0; bix < sc->sc_nrbuf; bix++) { |
222 | a = sc->sc_addr + LE_RBUFADDR(sc, bix); |
223 | rmd.rmd0 = a; |
224 | rmd.rmd1 = LE_R1_OWN | LE_R1_ONES | (-LEBLEN & 0xfff); |
225 | rmd.rmd2 = 0; |
226 | rmd.rmd3 = 0; |
227 | (*sc->sc_copytodesc)(sc, &rmd, LE_RMDADDR(sc, bix), |
228 | sizeof(rmd)); |
229 | } |
230 | |
231 | /* |
232 | * Set up transmit ring descriptors. |
233 | */ |
234 | for (bix = 0; bix < sc->sc_ntbuf; bix++) { |
235 | a = sc->sc_addr + LE_TBUFADDR(sc, bix); |
236 | tmd.tmd0 = a; |
237 | tmd.tmd1 = LE_T1_ONES; |
238 | tmd.tmd2 = 0; |
239 | tmd.tmd3 = 0; |
240 | (*sc->sc_copytodesc)(sc, &tmd, LE_TMDADDR(sc, bix), |
241 | sizeof(tmd)); |
242 | } |
243 | } |
244 | |
245 | static inline void |
246 | am79900_rint(struct lance_softc *sc) |
247 | { |
248 | int bix; |
249 | int rp; |
250 | struct lermd rmd; |
251 | |
252 | bix = sc->sc_last_rd; |
253 | |
254 | /* Process all buffers with valid data. */ |
255 | for (;;) { |
256 | rp = LE_RMDADDR(sc, bix); |
257 | (*sc->sc_copyfromdesc)(sc, &rmd, rp, sizeof(rmd)); |
258 | |
259 | if (rmd.rmd1 & LE_R1_OWN) |
260 | break; |
261 | |
262 | if (rmd.rmd1 & LE_R1_ERR) { |
263 | if (rmd.rmd1 & LE_R1_ENP) { |
264 | #ifdef LEDEBUG |
265 | if ((rmd.rmd1 & LE_R1_OFLO) == 0) { |
266 | if (rmd.rmd1 & LE_R1_FRAM) |
267 | printf("%s: framing error\n" , |
268 | device_xname(sc->sc_dev)); |
269 | if (rmd.rmd1 & LE_R1_CRC) |
270 | printf("%s: crc mismatch\n" , |
271 | device_xname(sc->sc_dev)); |
272 | } |
273 | #endif |
274 | } else { |
275 | if (rmd.rmd1 & LE_R1_OFLO) |
276 | printf("%s: overflow\n" , |
277 | device_xname(sc->sc_dev)); |
278 | } |
279 | if (rmd.rmd1 & LE_R1_BUFF) |
280 | printf("%s: receive buffer error\n" , |
281 | device_xname(sc->sc_dev)); |
282 | ifp->if_ierrors++; |
283 | } else if ((rmd.rmd1 & (LE_R1_STP | LE_R1_ENP)) != |
284 | (LE_R1_STP | LE_R1_ENP)) { |
285 | printf("%s: dropping chained buffer\n" , |
286 | device_xname(sc->sc_dev)); |
287 | ifp->if_ierrors++; |
288 | } else { |
289 | #ifdef LEDEBUG |
290 | if (sc->sc_debug) |
291 | am79900_recv_print(sc, sc->sc_last_rd); |
292 | #endif |
293 | lance_read(sc, LE_RBUFADDR(sc, bix), |
294 | (rmd.rmd2 & 0xfff) - 4); |
295 | } |
296 | |
297 | rmd.rmd1 = LE_R1_OWN | LE_R1_ONES | (-LEBLEN & 0xfff); |
298 | rmd.rmd2 = 0; |
299 | rmd.rmd3 = 0; |
300 | (*sc->sc_copytodesc)(sc, &rmd, rp, sizeof(rmd)); |
301 | |
302 | #ifdef LEDEBUG |
303 | if (sc->sc_debug) |
304 | printf("sc->sc_last_rd = %x, rmd: " |
305 | "adr %08x, flags/blen %08x\n" , |
306 | sc->sc_last_rd, |
307 | rmd.rmd0, rmd.rmd1); |
308 | #endif |
309 | |
310 | if (++bix == sc->sc_nrbuf) |
311 | bix = 0; |
312 | } |
313 | |
314 | sc->sc_last_rd = bix; |
315 | } |
316 | |
317 | static inline void |
318 | am79900_tint(struct lance_softc *sc) |
319 | { |
320 | int bix; |
321 | struct letmd tmd; |
322 | |
323 | bix = sc->sc_first_td; |
324 | |
325 | for (;;) { |
326 | if (sc->sc_no_td <= 0) |
327 | break; |
328 | |
329 | (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, bix), |
330 | sizeof(tmd)); |
331 | |
332 | #ifdef LEDEBUG |
333 | if (sc->sc_debug) |
334 | printf("trans tmd: " |
335 | "adr %08x, flags/blen %08x\n" , |
336 | tmd.tmd0, tmd.tmd1); |
337 | #endif |
338 | |
339 | if (tmd.tmd1 & LE_T1_OWN) |
340 | break; |
341 | |
342 | ifp->if_flags &= ~IFF_OACTIVE; |
343 | |
344 | if (tmd.tmd1 & LE_T1_ERR) { |
345 | if (tmd.tmd2 & LE_T2_BUFF) |
346 | printf("%s: transmit buffer error\n" , |
347 | device_xname(sc->sc_dev)); |
348 | else if (tmd.tmd2 & LE_T2_UFLO) |
349 | printf("%s: underflow\n" , |
350 | device_xname(sc->sc_dev)); |
351 | if (tmd.tmd2 & (LE_T2_BUFF | LE_T2_UFLO)) { |
352 | lance_reset(sc); |
353 | return; |
354 | } |
355 | if (tmd.tmd2 & LE_T2_LCAR) { |
356 | sc->sc_havecarrier = 0; |
357 | if (sc->sc_nocarrier) |
358 | (*sc->sc_nocarrier)(sc); |
359 | else |
360 | printf("%s: lost carrier\n" , |
361 | device_xname(sc->sc_dev)); |
362 | } |
363 | if (tmd.tmd2 & LE_T2_LCOL) |
364 | ifp->if_collisions++; |
365 | if (tmd.tmd2 & LE_T2_RTRY) { |
366 | #ifdef LEDEBUG |
367 | printf("%s: excessive collisions\n" , |
368 | device_xname(sc->sc_dev)); |
369 | #endif |
370 | ifp->if_collisions += 16; |
371 | } |
372 | ifp->if_oerrors++; |
373 | } else { |
374 | if (tmd.tmd1 & LE_T1_ONE) |
375 | ifp->if_collisions++; |
376 | else if (tmd.tmd1 & LE_T1_MORE) |
377 | /* Real number is unknown. */ |
378 | ifp->if_collisions += 2; |
379 | ifp->if_opackets++; |
380 | } |
381 | |
382 | if (++bix == sc->sc_ntbuf) |
383 | bix = 0; |
384 | |
385 | --sc->sc_no_td; |
386 | } |
387 | |
388 | sc->sc_first_td = bix; |
389 | |
390 | am79900_start(ifp); |
391 | |
392 | if (sc->sc_no_td == 0) |
393 | ifp->if_timer = 0; |
394 | } |
395 | |
396 | /* |
397 | * Controller interrupt. |
398 | */ |
399 | int |
400 | am79900_intr(void *arg) |
401 | { |
402 | struct lance_softc *sc = arg; |
403 | uint16_t isr; |
404 | |
405 | isr = (*sc->sc_rdcsr)(sc, LE_CSR0) | sc->sc_saved_csr0; |
406 | sc->sc_saved_csr0 = 0; |
407 | #if defined(LEDEBUG) && LEDEBUG > 1 |
408 | if (sc->sc_debug) |
409 | printf("%s: am79900_intr entering with isr=%04x\n" , |
410 | device_xname(sc->sc_dev), isr); |
411 | #endif |
412 | if ((isr & LE_C0_INTR) == 0) |
413 | return (0); |
414 | |
415 | (*sc->sc_wrcsr)(sc, LE_CSR0, |
416 | isr & (LE_C0_INEA | LE_C0_BABL | LE_C0_MISS | LE_C0_MERR | |
417 | LE_C0_RINT | LE_C0_TINT | LE_C0_IDON)); |
418 | if (isr & LE_C0_ERR) { |
419 | if (isr & LE_C0_BABL) { |
420 | #ifdef LEDEBUG |
421 | printf("%s: babble\n" , device_xname(sc->sc_dev)); |
422 | #endif |
423 | ifp->if_oerrors++; |
424 | } |
425 | #if 0 |
426 | if (isr & LE_C0_CERR) { |
427 | printf("%s: collision error\n" , |
428 | device_xname(sc->sc_dev)); |
429 | ifp->if_collisions++; |
430 | } |
431 | #endif |
432 | if (isr & LE_C0_MISS) { |
433 | #ifdef LEDEBUG |
434 | printf("%s: missed packet\n" , device_xname(sc->sc_dev)); |
435 | #endif |
436 | ifp->if_ierrors++; |
437 | } |
438 | if (isr & LE_C0_MERR) { |
439 | printf("%s: memory error\n" , device_xname(sc->sc_dev)); |
440 | lance_reset(sc); |
441 | return (1); |
442 | } |
443 | } |
444 | |
445 | if ((isr & LE_C0_RXON) == 0) { |
446 | printf("%s: receiver disabled\n" , device_xname(sc->sc_dev)); |
447 | ifp->if_ierrors++; |
448 | lance_reset(sc); |
449 | return (1); |
450 | } |
451 | if ((isr & LE_C0_TXON) == 0) { |
452 | printf("%s: transmitter disabled\n" , device_xname(sc->sc_dev)); |
453 | ifp->if_oerrors++; |
454 | lance_reset(sc); |
455 | return (1); |
456 | } |
457 | |
458 | /* |
459 | * Pretend we have carrier; if we don't this will be cleared |
460 | * shortly. |
461 | */ |
462 | sc->sc_havecarrier = 1; |
463 | |
464 | if (isr & LE_C0_RINT) |
465 | am79900_rint(sc); |
466 | if (isr & LE_C0_TINT) |
467 | am79900_tint(sc); |
468 | |
469 | rnd_add_uint32(&sc->rnd_source, isr); |
470 | |
471 | return (1); |
472 | } |
473 | |
474 | #undef ifp |
475 | |
476 | /* |
477 | * Setup output on interface. |
478 | * Get another datagram to send off of the interface queue, and map it to the |
479 | * interface before starting the output. |
480 | * Called only at splnet or interrupt level. |
481 | */ |
482 | static void |
483 | am79900_start(struct ifnet *ifp) |
484 | { |
485 | struct lance_softc *sc = ifp->if_softc; |
486 | int bix; |
487 | struct mbuf *m; |
488 | struct letmd tmd; |
489 | int rp; |
490 | int len; |
491 | |
492 | if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) |
493 | return; |
494 | |
495 | bix = sc->sc_last_td; |
496 | |
497 | for (;;) { |
498 | rp = LE_TMDADDR(sc, bix); |
499 | (*sc->sc_copyfromdesc)(sc, &tmd, rp, sizeof(tmd)); |
500 | |
501 | if (tmd.tmd1 & LE_T1_OWN) { |
502 | ifp->if_flags |= IFF_OACTIVE; |
503 | printf("missing buffer, no_td = %d, last_td = %d\n" , |
504 | sc->sc_no_td, sc->sc_last_td); |
505 | } |
506 | |
507 | IFQ_DEQUEUE(&ifp->if_snd, m); |
508 | if (m == 0) |
509 | break; |
510 | |
511 | /* |
512 | * If BPF is listening on this interface, let it see the packet |
513 | * before we commit it to the wire. |
514 | */ |
515 | bpf_mtap(ifp, m); |
516 | |
517 | /* |
518 | * Copy the mbuf chain into the transmit buffer. |
519 | */ |
520 | len = lance_put(sc, LE_TBUFADDR(sc, bix), m); |
521 | |
522 | #ifdef LEDEBUG |
523 | if (len > ETHERMTU + sizeof(struct ether_header)) |
524 | printf("packet length %d\n" , len); |
525 | #endif |
526 | |
527 | ifp->if_timer = 5; |
528 | |
529 | /* |
530 | * Init transmit registers, and set transmit start flag. |
531 | */ |
532 | tmd.tmd1 = LE_T1_OWN | LE_T1_STP | LE_T1_ENP | LE_T1_ONES | (-len & 0xfff); |
533 | tmd.tmd2 = 0; |
534 | tmd.tmd3 = 0; |
535 | |
536 | (*sc->sc_copytodesc)(sc, &tmd, rp, sizeof(tmd)); |
537 | |
538 | #ifdef LEDEBUG |
539 | if (sc->sc_debug) |
540 | am79900_xmit_print(sc, sc->sc_last_td); |
541 | #endif |
542 | |
543 | (*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_TDMD); |
544 | |
545 | if (++bix == sc->sc_ntbuf) |
546 | bix = 0; |
547 | |
548 | if (++sc->sc_no_td == sc->sc_ntbuf) { |
549 | ifp->if_flags |= IFF_OACTIVE; |
550 | break; |
551 | } |
552 | |
553 | } |
554 | |
555 | sc->sc_last_td = bix; |
556 | } |
557 | |
558 | #ifdef LEDEBUG |
559 | static void |
560 | am79900_recv_print(struct lance_softc *sc, int no) |
561 | { |
562 | struct lermd rmd; |
563 | uint16_t len; |
564 | struct ether_header eh; |
565 | |
566 | (*sc->sc_copyfromdesc)(sc, &rmd, LE_RMDADDR(sc, no), sizeof(rmd)); |
567 | len = (rmd.rmd2 & 0xfff) - 4; |
568 | printf("%s: receive buffer %d, len = %d\n" , |
569 | device_xname(sc->sc_dev), no, len); |
570 | printf("%s: status %04x\n" , device_xname(sc->sc_dev), |
571 | (*sc->sc_rdcsr)(sc, LE_CSR0)); |
572 | printf("%s: adr %08x, flags/blen %08x\n" , |
573 | device_xname(sc->sc_dev), rmd.rmd0, rmd.rmd1); |
574 | if (len >= sizeof(eh)) { |
575 | (*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh)); |
576 | printf("%s: dst %s" , device_xname(sc->sc_dev), |
577 | ether_sprintf(eh.ether_dhost)); |
578 | printf(" src %s type %04x\n" , ether_sprintf(eh.ether_shost), |
579 | ntohs(eh.ether_type)); |
580 | } |
581 | } |
582 | |
583 | static void |
584 | am79900_xmit_print(struct lance_softc *sc, int no) |
585 | { |
586 | struct letmd tmd; |
587 | uint16_t len; |
588 | struct ether_header eh; |
589 | |
590 | (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, no), sizeof(tmd)); |
591 | len = -(tmd.tmd1 & 0xfff); |
592 | printf("%s: transmit buffer %d, len = %d\n" , |
593 | device_xname(sc->sc_dev), no, len); |
594 | printf("%s: status %04x\n" , device_xname(sc->sc_dev), |
595 | (*sc->sc_rdcsr)(sc, LE_CSR0)); |
596 | printf("%s: adr %08x, flags/blen %08x\n" , |
597 | device_xname(sc->sc_dev), tmd.tmd0, tmd.tmd1); |
598 | if (len >= sizeof(eh)) { |
599 | (*sc->sc_copyfrombuf)(sc, &eh, LE_TBUFADDR(sc, no), sizeof(eh)); |
600 | printf("%s: dst %s" , device_xname(sc->sc_dev), |
601 | ether_sprintf(eh.ether_dhost)); |
602 | printf(" src %s type %04x\n" , ether_sprintf(eh.ether_shost), |
603 | ntohs(eh.ether_type)); |
604 | } |
605 | } |
606 | #endif /* LEDEBUG */ |
607 | |