xref: /dragonfly/sys/dev/netif/mn/if_mn.c (revision b40e316c)
1 /*
2  * ----------------------------------------------------------------------------
3  * "THE BEER-WARE LICENSE" (Revision 42):
4  * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
5  * can do whatever you want with this stuff. If we meet some day, and you think
6  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
7  * ----------------------------------------------------------------------------
8  *
9  * $Id: if_mn.c,v 1.1 1999/02/01 13:06:40 phk Exp $
10  *
11  * Driver for Siemens reference design card "Easy321-R1".
12  *
13  * This card contains a FALC54 E1/T1 framer and a MUNICH32X 32-channel HDLC
14  * controller.
15  *
16  * The driver supports E1 mode with up to 31 channels.  We send CRC4 but don't
17  * check it coming in.
18  *
19  * The FALC54 and MUNICH32X have far too many registers and weird modes for
20  * comfort, so I have not bothered typing it all into a "fooreg.h" file,
21  * you will (badly!) need the documentation anyway if you want to mess with
22  * this gadget.
23  *
24  * $FreeBSD: src/sys/pci/if_mn.c,v 1.11.2.3 2001/01/23 12:47:09 phk Exp $
25  * $DragonFly: src/sys/dev/netif/mn/if_mn.c,v 1.7 2004/09/14 23:49:51 joerg Exp $
26  */
27 
28 /*
29  * Stuff to describe the MUNIC32X and FALC54 chips.
30  */
31 
32 #define M32_CHAN	32	/* We have 32 channels */
33 #define M32_TS		32	/* We have 32 timeslots */
34 
35 #define NG_MN_NODE_TYPE	"mn"
36 
37 #include <sys/param.h>
38 #include <sys/kernel.h>
39 #include <sys/sysctl.h>
40 #include <sys/bus.h>
41 #include <sys/mbuf.h>
42 #include <sys/systm.h>
43 #include <sys/malloc.h>
44 
45 #include <bus/pci/pcireg.h>
46 #include <bus/pci/pcivar.h>
47 #include "pci_if.h"
48 
49 #include <machine/bus.h>
50 #include <machine/resource.h>
51 #include <machine/clock.h>
52 
53 #include <sys/rman.h>
54 
55 #include <vm/vm.h>
56 #include <vm/pmap.h>
57 
58 #include <netgraph/ng_message.h>
59 #include <netgraph/netgraph.h>
60 
61 
62 static int mn_maxlatency = 1000;
63 SYSCTL_INT(_debug, OID_AUTO, mn_maxlatency, CTLFLAG_RW,
64     &mn_maxlatency, 0,
65 	"The number of milliseconds a packet is allowed to spend in the output queue.  "
66 	"If the output queue is longer than this number of milliseconds when the packet "
67 	"arrives for output, the packet will be dropped."
68 );
69 
70 #ifndef NMN
71 /* Most machines don't support more than 4 busmaster PCI slots, if even that many */
72 #define NMN	4
73 #endif
74 
75 /* From: PEB 20321 data sheet, p187, table 22 */
76 struct m32xreg {
77 	u_int32_t conf,    cmd,     stat,    imask;
78 	u_int32_t fill10,  piqba,   piql,    fill1c;
79 	u_int32_t mode1,   mode2,   ccba,    txpoll;
80 	u_int32_t tiqba,   tiql,    riqba,   riql;
81 	u_int32_t lconf,   lccba,   fill48,  ltran;
82 	u_int32_t ltiqba,  ltiql,   lriqba,  lriql;
83 	u_int32_t lreg0,   lreg1,   lreg2,   lreg3;
84 	u_int32_t lreg4,   lreg5,   lre6,    lstat;
85 	u_int32_t gpdir,   gpdata,  gpod,    fill8c;
86 	u_int32_t ssccon,  sscbr,   ssctb,   sscrb;
87 	u_int32_t ssccse,  sscim,   fillab,  fillac;
88 	u_int32_t iomcon1, iomcon2, iomstat, fillbc;
89 	u_int32_t iomcit0, iomcit1, iomcir0, iomcir1;
90 	u_int32_t iomtmo,  iomrmo,  filld8,  filldc;
91 	u_int32_t mbcmd,   mbdata1, mbdata2, mbdata3;
92 	u_int32_t mbdata4, mbdata5, mbdata6, mbdata7;
93 };
94 
95 /* From: PEB 2254 data sheet, p80, table 10 */
96 struct f54wreg {
97 	u_int16_t xfifo;
98 	u_int8_t                  cmdr,   mode,   rah1,   rah2,   ral1,   ral2;
99 	u_int8_t  ipc,    ccr1,   ccr3,   pre,    rtr1,   rtr2,   rtr3,   rtr4;
100 	u_int8_t  ttr1,   ttr2,   ttr3,   ttr4,   imr0,   imr1,   imr2,   imr3;
101 	u_int8_t  imr4,   fill19, fmr0,   fmr1,   fmr2,   loop,   xsw,    xsp;
102 	u_int8_t  xc0,    xc1,    rc0,    rc1,    xpm0,   xpm1,   xpm2,   tswm;
103 	u_int8_t  test1,  idle,   xsa4,   xsa5,   xsa6,   xsa7,   xsa8,   fmr3;
104 	u_int8_t  icb1,   icb2,   icb3,   icb4,   lim0,   lim1,   pcd,    pcr;
105 	u_int8_t  lim2,   fill39[7];
106 	u_int8_t  fill40[8];
107 	u_int8_t  fill48[8];
108 	u_int8_t  fill50[8];
109 	u_int8_t  fill58[8];
110 	u_int8_t  dec,    fill61, test2,  fill63[5];
111 	u_int8_t  fill68[8];
112 	u_int8_t  xs[16];
113 };
114 
115 /* From: PEB 2254 data sheet, p117, table 10 */
116 struct f54rreg {
117 	u_int16_t rfifo;
118 	u_int8_t                  fill2,  mode,   rah1,   rah2,   ral1,   ral2;
119 	u_int8_t  ipc,    ccr1,   ccr3,   pre,    rtr1,   rtr2,   rtr3,   rtr4;
120 	u_int8_t  ttr1,   ttr2,   ttr3,   ttr4,   imr0,   imr1,   imr2,   imr3;
121 	u_int8_t  imr4,   fill19, fmr0,   fmr1,   fmr2,   loop,   xsw,    xsp;
122 	u_int8_t  xc0,    xc1,    rc0,    rc1,    xpm0,   xpm1,   xpm2,   tswm;
123 	u_int8_t  test,   idle,   xsa4,   xsa5,   xsa6,   xsa7,   xsa8,   fmr13;
124 	u_int8_t  icb1,   icb2,   icb3,   icb4,   lim0,   lim1,   pcd,    pcr;
125 	u_int8_t  lim2,   fill39[7];
126 	u_int8_t  fill40[8];
127 	u_int8_t  fill48[4],                      frs0,   frs1,   rsw,    rsp;
128 	u_int16_t fec,            cvc,            cec1,           ebc;
129 	u_int16_t cec2,           cec3;
130 	u_int8_t                                  rsa4,   rsa5,   rsa6,   rsa7;
131 	u_int8_t  rsa8,   rsa6s,  tsr0,   tsr1,   sis,    rsis;
132 	u_int16_t                                                 rbc;
133 	u_int8_t  isr0,   isr1,   isr2,   isr3,   fill6c, fill6d, gis,    vstr;
134 	u_int8_t  rs[16];
135 };
136 
137 /* Transmit & receive descriptors */
138 struct trxd {
139 	u_int32_t	flags;
140 	vm_offset_t	next;
141 	vm_offset_t	data;
142 	u_int32_t	status;	/* only used for receive */
143 	struct mbuf	*m;	/* software use only */
144 	struct trxd	*vnext;	/* software use only */
145 };
146 
147 /* Channel specification */
148 struct cspec {
149 	u_int32_t	flags;
150 	vm_offset_t	rdesc;
151 	vm_offset_t	tdesc;
152 	u_int32_t	itbs;
153 };
154 
155 struct m32_mem {
156 	vm_offset_t	csa;
157 	u_int32_t	ccb;
158 	u_int32_t	reserve1[2];
159 	u_int32_t	ts[M32_TS];
160 	struct cspec	cs[M32_CHAN];
161 	vm_offset_t	crxd[M32_CHAN];
162 	vm_offset_t	ctxd[M32_CHAN];
163 };
164 
165 struct softc;
166 struct sockaddr;
167 struct rtentry;
168 
169 static	int	mn_probe  (device_t self);
170 static	int	mn_attach (device_t self);
171 static	void	mn_create_channel(struct softc *sc, int chan);
172 static	int	mn_reset(struct softc *sc);
173 static	struct trxd * mn_alloc_desc(void);
174 static	void	mn_free_desc(struct trxd *dp);
175 static	void	mn_intr(void *xsc);
176 static	u_int32_t mn_parse_ts(const char *s, int *nbit);
177 #ifdef notyet
178 static	void	m32_dump(struct softc *sc);
179 static	void	f54_dump(struct softc *sc);
180 static	void	mn_fmt_ts(char *p, u_int32_t ts);
181 #endif /* notyet */
182 static	void	f54_init(struct softc *sc);
183 
184 static	ng_constructor_t ngmn_constructor;
185 static	ng_rcvmsg_t ngmn_rcvmsg;
186 static	ng_shutdown_t ngmn_shutdown;
187 static	ng_newhook_t ngmn_newhook;
188 static	ng_connect_t ngmn_connect;
189 static	ng_rcvdata_t ngmn_rcvdata;
190 static	ng_disconnect_t ngmn_disconnect;
191 
192 static struct ng_type mntypestruct = {
193 	NG_VERSION,
194 	NG_MN_NODE_TYPE,
195 	NULL,
196 	ngmn_constructor,
197 	ngmn_rcvmsg,
198 	ngmn_shutdown,
199 	ngmn_newhook,
200 	NULL,
201 	ngmn_connect,
202 	ngmn_rcvdata,
203 	ngmn_rcvdata,
204 	ngmn_disconnect,
205 	NULL
206 };
207 
208 static MALLOC_DEFINE(M_MN, "mn", "Mx driver related");
209 
210 #define NIQB	64
211 
212 struct schan {
213 	enum {DOWN, UP} state;
214 	struct softc	*sc;
215 	int		chan;
216 	u_int32_t	ts;
217 	char		name[8];
218 	struct trxd	*r1, *rl;
219 	struct trxd	*x1, *xl;
220 	hook_p		hook;
221 
222 	time_t		last_recv;
223 	time_t		last_rxerr;
224 	time_t		last_xmit;
225 
226 	u_long		rx_error;
227 
228 	u_long		short_error;
229 	u_long		crc_error;
230 	u_long		dribble_error;
231 	u_long		long_error;
232 	u_long		abort_error;
233 	u_long		overflow_error;
234 
235 	int		last_error;
236 	int		prev_error;
237 
238 	u_long		tx_pending;
239 	u_long		tx_limit;
240 };
241 
242 enum framing {WHOKNOWS, E1, E1U, T1, T1U};
243 
244 struct softc {
245 	int	unit;
246 	device_t	dev;
247 	struct resource *irq;
248 	void *intrhand;
249 	enum framing	framing;
250 	int 		nhooks;
251 	void 		*m0v, *m1v;
252 	vm_offset_t	m0p, m1p;
253 	struct m32xreg	*m32x;
254 	struct f54wreg	*f54w;
255 	struct f54rreg	*f54r;
256 	struct m32_mem	m32_mem;
257 	u_int32_t	tiqb[NIQB];
258 	u_int32_t	riqb[NIQB];
259 	u_int32_t	piqb[NIQB];
260 	u_int32_t	ltiqb[NIQB];
261 	u_int32_t	lriqb[NIQB];
262 	char		name[8];
263 	u_int32_t	falc_irq, falc_state, framer_state;
264 	struct schan *ch[M32_CHAN];
265 	char	nodename[NG_NODELEN + 1];
266 	node_p	node;
267 
268 	u_long		cnt_fec;
269 	u_long		cnt_cvc;
270 	u_long		cnt_cec1;
271 	u_long		cnt_ebc;
272 	u_long		cnt_cec2;
273 	u_long		cnt_cec3;
274 	u_long		cnt_rbc;
275 };
276 
277 static int
278 ngmn_constructor(node_p *nodep)
279 {
280 
281 	return (EINVAL);
282 }
283 
284 static int
285 ngmn_shutdown(node_p nodep)
286 {
287 
288 	return (EINVAL);
289 }
290 
291 static void
292 ngmn_config(node_p node, char *set, char *ret)
293 {
294 	struct softc *sc;
295 	enum framing wframing;
296 
297 	sc = node->private;
298 
299 	if (set != NULL) {
300 		if (!strncmp(set, "line ", 5)) {
301 			wframing = sc->framing;
302 			if (!strcmp(set, "line e1")) {
303 				wframing = E1;
304 			} else if (!strcmp(set, "line e1u")) {
305 				wframing = E1U;
306 			} else {
307 				strcat(ret, "ENOGROK\n");
308 				return;
309 			}
310 			if (wframing == sc->framing)
311 				return;
312 			if (sc->nhooks > 0) {
313 				sprintf(ret, "Cannot change line when %d hooks open\n", sc->nhooks);
314 				return;
315 			}
316 			sc->framing = wframing;
317 #if 1
318 			f54_init(sc);
319 #else
320 			mn_reset(sc);
321 #endif
322 		} else {
323 			printf("%s CONFIG SET [%s]\n", sc->nodename, set);
324 			strcat(ret, "ENOGROK\n");
325 			return;
326 		}
327 	}
328 
329 }
330 
331 static int
332 ngmn_rcvmsg(node_p node, struct ng_mesg *msg, const char *retaddr, struct ng_mesg **resp)
333 {
334 	struct softc *sc;
335 	struct schan *sch;
336 	char *s, *r;
337 	int pos, i;
338 
339 	sc = node->private;
340 
341 	if (msg->header.typecookie != NGM_GENERIC_COOKIE) {
342 		if (resp != NULL)
343 			*resp = NULL;
344 		FREE(msg, M_NETGRAPH);
345 		return (EINVAL);
346 	}
347 
348 	if (msg->header.cmd != NGM_TEXT_CONFIG &&
349 	    msg->header.cmd != NGM_TEXT_STATUS) {
350 		if (resp != NULL)
351 			*resp = NULL;
352 		FREE(msg, M_NETGRAPH);
353 		return (EINVAL);
354 	}
355 
356 	NG_MKRESPONSE(*resp, msg, sizeof(struct ng_mesg) + NG_TEXTRESPONSE,
357 	    M_INTWAIT);
358 	if (*resp == NULL) {
359 		FREE(msg, M_NETGRAPH);
360 		return (ENOMEM);
361 	}
362 
363 	if (msg->header.arglen)
364 		s = (char *)msg->data;
365 	else
366 		s = NULL;
367 	r = (char *)(*resp)->data;
368 	*r = '\0';
369 
370 	if (msg->header.cmd == NGM_TEXT_CONFIG) {
371 		ngmn_config(node, s, r);
372 		(*resp)->header.arglen = strlen(r) + 1;
373 		FREE(msg, M_NETGRAPH);
374 		return (0);
375 	}
376 
377 	pos = 0;
378 	pos += sprintf(pos + r,"Framer status %b;\n", sc->framer_state, "\20"
379 	    "\40LOS\37AIS\36LFA\35RRA"
380 	    "\34AUXP\33NMF\32LMFA\31frs0.0"
381 	    "\30frs1.7\27TS16RA\26TS16LOS\25TS16AIS"
382 	    "\24TS16LFA\23frs1.2\22XLS\21XLO"
383 	    "\20RS1\17rsw.6\16RRA\15RY0"
384 	    "\14RY1\13RY2\12RY3\11RY4"
385 	    "\10SI1\7SI2\6rsp.5\5rsp.4"
386 	    "\4rsp.3\3RSIF\2RS13\1RS15");
387 	pos += sprintf(pos + r,"    Framing errors: %lu", sc->cnt_fec);
388 	pos += sprintf(pos + r,"  Code Violations: %lu\n", sc->cnt_cvc);
389 
390 	pos += sprintf(pos + r,"    Falc State %b;\n", sc->falc_state, "\20"
391 	    "\40LOS\37AIS\36LFA\35RRA"
392 	    "\34AUXP\33NMF\32LMFA\31frs0.0"
393 	    "\30frs1.7\27TS16RA\26TS16LOS\25TS16AIS"
394 	    "\24TS16LFA\23frs1.2\22XLS\21XLO"
395 	    "\20RS1\17rsw.6\16RRA\15RY0"
396 	    "\14RY1\13RY2\12RY3\11RY4"
397 	    "\10SI1\7SI2\6rsp.5\5rsp.4"
398 	    "\4rsp.3\3RSIF\2RS13\1RS15");
399 	pos += sprintf(pos + r, "    Falc IRQ %b\n", sc->falc_irq, "\20"
400 	    "\40RME\37RFS\36T8MS\35RMB\34CASC\33CRC4\32SA6SC\31RPF"
401 	    "\30b27\27RDO\26ALLS\25XDU\24XMB\23b22\22XLSC\21XPR"
402 	    "\20FAR\17LFA\16MFAR\15T400MS\14AIS\13LOS\12RAR\11RA"
403 	    "\10ES\7SEC\6LMFA16\5AIS16\4RA16\3API\2SLN\1SLP");
404 	for (i = 0; i < M32_CHAN; i++) {
405 		if (!sc->ch[i])
406 			continue;
407 		sch = sc->ch[i];
408 
409 		pos += sprintf(r + pos, "  Chan %d <%s> ",
410 		    i, sch->hook->name);
411 
412 		pos += sprintf(r + pos, "  Last Rx: ");
413 		if (sch->last_recv)
414 			pos += sprintf(r + pos, "%lu s", time_second - sch->last_recv);
415 		else
416 			pos += sprintf(r + pos, "never");
417 
418 		pos += sprintf(r + pos, ", last RxErr: ");
419 		if (sch->last_rxerr)
420 			pos += sprintf(r + pos, "%lu s", time_second - sch->last_rxerr);
421 		else
422 			pos += sprintf(r + pos, "never");
423 
424 		pos += sprintf(r + pos, ", last Tx: ");
425 		if (sch->last_xmit)
426 			pos += sprintf(r + pos, "%lu s\n", time_second - sch->last_xmit);
427 		else
428 			pos += sprintf(r + pos, "never\n");
429 
430 		pos += sprintf(r + pos, "    RX error(s) %lu", sch->rx_error);
431 		pos += sprintf(r + pos, " Short: %lu", sch->short_error);
432 		pos += sprintf(r + pos, " CRC: %lu", sch->crc_error);
433 		pos += sprintf(r + pos, " Mod8: %lu", sch->dribble_error);
434 		pos += sprintf(r + pos, " Long: %lu", sch->long_error);
435 		pos += sprintf(r + pos, " Abort: %lu", sch->abort_error);
436 		pos += sprintf(r + pos, " Overflow: %lu\n", sch->overflow_error);
437 
438 		pos += sprintf(r + pos, "    Last error: %b  Prev error: %b\n",
439 		    sch->last_error, "\20\7SHORT\5CRC\4MOD8\3LONG\2ABORT\1OVERRUN",
440 		    sch->prev_error, "\20\7SHORT\5CRC\4MOD8\3LONG\2ABORT\1OVERRUN");
441 		pos += sprintf(r + pos, "    Xmit bytes pending %ld\n",
442 		    sch->tx_pending);
443 	}
444 	(*resp)->header.arglen = pos + 1;
445 	FREE(msg, M_NETGRAPH);
446 	return (0);
447 }
448 
449 static int
450 ngmn_newhook(node_p node, hook_p hook, const char *name)
451 {
452 	u_int32_t ts, chan;
453 	struct softc *sc;
454 	int nbit;
455 
456 	sc = node->private;
457 
458 	if (name[0] != 't' || name[1] != 's')
459 		return (EINVAL);
460 
461 	ts = mn_parse_ts(name + 2, &nbit);
462 	printf("%d bits %x\n", nbit, ts);
463 	if (sc->framing == E1 && (ts & 1))
464 		return (EINVAL);
465 	if (sc->framing == E1U && nbit != 32)
466 		return (EINVAL);
467 	if (ts == 0)
468 		return (EINVAL);
469 	if (sc->framing == E1)
470 		chan = ffs(ts) - 1;
471 	else
472 		chan = 1;
473 	if (!sc->ch[chan])
474 		mn_create_channel(sc, chan);
475 	else if (sc->ch[chan]->state == UP)
476 		return (EBUSY);
477 	sc->ch[chan]->ts = ts;
478 	sc->ch[chan]->hook = hook;
479 	sc->ch[chan]->tx_limit = nbit * 8;
480 	hook->private = sc->ch[chan];
481 	sc->nhooks++;
482 	return(0);
483 }
484 
485 
486 static struct trxd *mn_desc_free;
487 
488 static struct trxd *
489 mn_alloc_desc(void)
490 {
491 	struct trxd *dp;
492 
493 	dp = mn_desc_free;
494 	if (dp)
495 		mn_desc_free = dp->vnext;
496 	else
497 		dp = (struct trxd *)malloc(sizeof *dp, M_MN, M_INTWAIT);
498 	return (dp);
499 }
500 
501 static void
502 mn_free_desc(struct trxd *dp)
503 {
504 	dp->vnext =  mn_desc_free;
505 	mn_desc_free = dp;
506 }
507 
508 static u_int32_t
509 mn_parse_ts(const char *s, int *nbit)
510 {
511 	unsigned r;
512 	int i, j;
513 	char *p;
514 
515 	r = 0;
516 	j = -1;
517 	*nbit = 0;
518 	while(*s) {
519 		i = strtol(s, &p, 0);
520 		if (i < 0 || i > 31)
521 			return (0);
522 		while (j != -1 && j < i) {
523 			r |= 1 << j++;
524 			(*nbit)++;
525 		}
526 		j = -1;
527 		r |= 1 << i;
528 		(*nbit)++;
529 		if (*p == ',') {
530 			s = p + 1;
531 			continue;
532 		} else if (*p == '-') {
533 			j = i + 1;
534 			s = p + 1;
535 			continue;
536 		} else if (!*p) {
537 			break;
538 		} else {
539 			return (0);
540 		}
541 	}
542 	return (r);
543 }
544 
545 #ifdef notyet
546 static void
547 mn_fmt_ts(char *p, u_int32_t ts)
548 {
549 	char *s;
550 	int j;
551 
552 	s = "";
553 	ts &= 0xffffffff;
554 	for (j = 0; j < 32; j++) {
555 		if (!(ts & (1 << j)))
556 			continue;
557 		sprintf(p, "%s%d", s, j);
558 		p += strlen(p);
559 		s = ",";
560 		if (!(ts & (1 << (j+1))))
561 			continue;
562 		for (; j < 32; j++)
563 			if (!(ts & (1 << (j+1))))
564 				break;
565 		sprintf(p, "-%d", j);
566 		p += strlen(p);
567 		s = ",";
568 	}
569 }
570 #endif /* notyet */
571 
572 /*
573  * OUTPUT
574  */
575 
576 static int
577 ngmn_rcvdata(hook_p hook, struct mbuf *m, meta_p meta)
578 {
579 	struct mbuf  *m2;
580 	struct trxd *dp, *dp2;
581 	struct schan *sch;
582 	struct softc *sc;
583 	int chan, pitch, len;
584 
585 	sch = hook->private;
586 	sc = sch->sc;
587 	chan = sch->chan;
588 
589 	if (sch->state != UP) {
590 		NG_FREE_DATA(m, meta);
591 		return (0);
592 	}
593 	if (sch->tx_pending + m->m_pkthdr.len > sch->tx_limit * mn_maxlatency) {
594 		NG_FREE_DATA(m, meta);
595 		return (0);
596 	}
597 	NG_FREE_META(meta);
598 	pitch = 0;
599 	m2 = m;
600 	dp2 = sc->ch[chan]->xl;
601 	len = m->m_pkthdr.len;
602 	while (len) {
603 		dp = mn_alloc_desc();
604 		if (!dp) {
605 			pitch++;
606 			m_freem(m);
607 			sc->ch[chan]->xl = dp2;
608 			dp = dp2->vnext;
609 			while (dp) {
610 				dp2 = dp->vnext;
611 				mn_free_desc(dp);
612 				dp = dp2;
613 			}
614 			sc->ch[chan]->xl->vnext = 0;
615 			break;
616 		}
617 		dp->data = vtophys(m2->m_data);
618 		dp->flags = m2->m_len << 16;
619 		dp->flags += 1;
620 		len -= m2->m_len;
621 		dp->next = vtophys(dp);
622 		dp->vnext = 0;
623 		sc->ch[chan]->xl->next = vtophys(dp);
624 		sc->ch[chan]->xl->vnext = dp;
625 		sc->ch[chan]->xl = dp;
626 		if (!len) {
627 			dp->m = m;
628 			dp->flags |= 0xc0000000;
629 			dp2->flags &= ~0x40000000;
630 		} else {
631 			dp->m = 0;
632 			m2 = m2->m_next;
633 		}
634 	}
635 	if (pitch)
636 		printf("%s%d: Short on mem, pitched %d packets\n",
637 		    sc->name, chan, pitch);
638 	else {
639 #if 0
640 		printf("%d = %d + %d (%p)\n",
641 		    sch->tx_pending + m->m_pkthdr.len,
642 		    sch->tx_pending , m->m_pkthdr.len, m);
643 #endif
644 		sch->tx_pending += m->m_pkthdr.len;
645 		sc->m32x->txpoll &= ~(1 << chan);
646 	}
647 	return (0);
648 }
649 
650 /*
651  * OPEN
652  */
653 static int
654 ngmn_connect(hook_p hook)
655 {
656 	int i, nts, chan;
657 	struct trxd *dp, *dp2;
658 	struct mbuf *m;
659 	struct softc *sc;
660 	struct schan *sch;
661 	u_int32_t u;
662 
663 	sch = hook->private;
664 	chan = sch->chan;
665 	sc = sch->sc;
666 
667 	if (sch->state == UP)
668 		return (0);
669 	sch->state = UP;
670 
671 	/* Count and configure the timeslots for this channel */
672 	for (nts = i = 0; i < 32; i++)
673 		if (sch->ts & (1 << i)) {
674 			sc->m32_mem.ts[i] = 0x00ff00ff |
675 				(chan << 24) | (chan << 8);
676 			nts++;
677 		}
678 
679 	/* Init the receiver & xmitter to HDLC */
680 	sc->m32_mem.cs[chan].flags = 0x80e90006;
681 	/* Allocate two buffers per timeslot */
682 	if (nts == 32)
683 		sc->m32_mem.cs[chan].itbs = 63;
684 	else
685 		sc->m32_mem.cs[chan].itbs = nts * 2;
686 
687 	/* Setup a transmit chain with one descriptor */
688 	/* XXX: we actually send a 1 byte packet */
689 	dp = mn_alloc_desc();
690 	MGETHDR(m, MB_WAIT, MT_DATA);
691 	if (m == NULL)
692 		return (ENOBUFS);
693 	m->m_pkthdr.len = 0;
694 	dp->m = m;
695 	dp->flags = 0xc0000000 + (1 << 16);
696 	dp->next = vtophys(dp);
697 	dp->vnext = 0;
698 	dp->data = vtophys(sc->name);
699 	sc->m32_mem.cs[chan].tdesc = vtophys(dp);
700 	sc->ch[chan]->x1 = dp;
701 	sc->ch[chan]->xl = dp;
702 
703 	/* Setup a receive chain with 5 + NTS descriptors */
704 
705 	dp = mn_alloc_desc();
706 	m = NULL;
707 	MGETHDR(m, MB_WAIT, MT_DATA);
708 	if (m == NULL) {
709 		mn_free_desc(dp);
710 		return (ENOBUFS);
711 	}
712 	MCLGET(m, MB_WAIT);
713 	if ((m->m_flags & M_EXT) == 0) {
714 		mn_free_desc(dp);
715 		m_freem(m);
716 		return (ENOBUFS);
717 	}
718 	dp->m = m;
719 	dp->data = vtophys(m->m_data);
720 	dp->flags = 0x40000000;
721 	dp->flags += 1600 << 16;
722 	dp->next = vtophys(dp);
723 	dp->vnext = 0;
724 	sc->ch[chan]->rl = dp;
725 
726 	for (i = 0; i < (nts + 10); i++) {
727 		dp2 = dp;
728 		dp = mn_alloc_desc();
729 		m = NULL;
730 		MGETHDR(m, MB_WAIT, MT_DATA);
731 		if (m == NULL) {
732 			mn_free_desc(dp);
733 			m_freem(m);
734 			return (ENOBUFS);
735 		}
736 		MCLGET(m, MB_WAIT);
737 		if ((m->m_flags & M_EXT) == 0) {
738 			mn_free_desc(dp);
739 			m_freem(m);
740 			return (ENOBUFS);
741 		}
742 		dp->m = m;
743 		dp->data = vtophys(m->m_data);
744 		dp->flags = 0x00000000;
745 		dp->flags += 1600 << 16;
746 		dp->next = vtophys(dp2);
747 		dp->vnext = dp2;
748 	}
749 	sc->m32_mem.cs[chan].rdesc = vtophys(dp);
750 	sc->ch[chan]->r1 = dp;
751 
752 	/* Initialize this channel */
753 	sc->m32_mem.ccb = 0x00008000 + (chan << 8);
754 	sc->m32x->cmd = 0x1;
755 	DELAY(1000);
756 	u = sc->m32x->stat;
757 	if (!(u & 1))
758 		printf("%s: init chan %d stat %08x\n", sc->name, chan, u);
759 	sc->m32x->stat = 1;
760 
761 	return (0);
762 }
763 
764 /*
765  * CLOSE
766  */
767 static int
768 ngmn_disconnect(hook_p hook)
769 {
770 	int chan, i;
771 	struct softc *sc;
772 	struct schan *sch;
773 	struct trxd *dp, *dp2;
774 	u_int32_t u;
775 
776 	sch = hook->private;
777 	chan = sch->chan;
778 	sc = sch->sc;
779 
780 	if (sch->state == DOWN)
781 		return (0);
782 	sch->state = DOWN;
783 
784 	/* Set receiver & transmitter off */
785 	sc->m32_mem.cs[chan].flags = 0x80920006;
786 	sc->m32_mem.cs[chan].itbs = 0;
787 
788 	/* free the timeslots */
789 	for (i = 0; i < 32; i++)
790 		if (sc->ch[chan]->ts & (1 << i))
791 			sc->m32_mem.ts[i] = 0x20002000;
792 
793 	/* Initialize this channel */
794 	sc->m32_mem.ccb = 0x00008000 + (chan << 8);
795 	sc->m32x->cmd = 0x1;
796 	DELAY(30);
797 	u = sc->m32x->stat;
798 	if (!(u & 1))
799 		printf("%s: zap chan %d stat %08x\n", sc->name, chan, u);
800 	sc->m32x->stat = 1;
801 
802 	/* Free all receive descriptors and mbufs */
803 	for (dp = sc->ch[chan]->r1; dp ; dp = dp2) {
804 		if (dp->m)
805 			m_freem(dp->m);
806 		sc->ch[chan]->r1 = dp2 = dp->vnext;
807 		mn_free_desc(dp);
808 	}
809 
810 	/* Free all transmit descriptors and mbufs */
811 	for (dp = sc->ch[chan]->x1; dp ; dp = dp2) {
812 		if (dp->m) {
813 			sc->ch[chan]->tx_pending -= dp->m->m_pkthdr.len;
814 			m_freem(dp->m);
815 		}
816 		sc->ch[chan]->x1 = dp2 = dp->vnext;
817 		mn_free_desc(dp);
818 	}
819 	sc->nhooks--;
820 	return(0);
821 }
822 
823 /*
824  * Create a new channel.
825  */
826 static void
827 mn_create_channel(struct softc *sc, int chan)
828 {
829 	struct schan *sch;
830 
831 	sch = sc->ch[chan] = (struct schan *)malloc(sizeof *sc->ch[chan],
832 	    M_MN, M_WAITOK | M_ZERO);
833 	sch->sc = sc;
834 	sch->state = DOWN;
835 	sch->chan = chan;
836 	sprintf(sch->name, "%s%d", sc->name, chan);
837 	return;
838 }
839 
840 #ifdef notyet
841 /*
842  * Dump Munich32x state
843  */
844 static void
845 m32_dump(struct softc *sc)
846 {
847 	u_int32_t *tp4;
848 	int i, j;
849 
850 	printf("mn%d: MUNICH32X dump\n", sc->unit);
851 	tp4 = (u_int32_t *)sc->m0v;
852 	for(j = 0; j < 64; j += 8) {
853 		printf("%02x", j * sizeof *tp4);
854 		for(i = 0; i < 8; i++)
855 			printf(" %08x", tp4[i+j]);
856 		printf("\n");
857 	}
858 	for(j = 0; j < M32_CHAN; j++) {
859 		if (!sc->ch[j])
860 			continue;
861 		printf("CH%d: state %d ts %08x",
862 			j, sc->ch[j]->state, sc->ch[j]->ts);
863 		printf("  %08x %08x %08x %08x %08x %08x\n",
864 			sc->m32_mem.cs[j].flags,
865 			sc->m32_mem.cs[j].rdesc,
866 			sc->m32_mem.cs[j].tdesc,
867 			sc->m32_mem.cs[j].itbs,
868 			sc->m32_mem.crxd[j],
869 			sc->m32_mem.ctxd[j] );
870 	}
871 }
872 
873 /*
874  * Dump Falch54 state
875  */
876 static void
877 f54_dump(struct softc *sc)
878 {
879 	u_int8_t *tp1;
880 	int i, j;
881 
882 	printf("%s: FALC54 dump\n", sc->name);
883 	tp1 = (u_int8_t *)sc->m1v;
884 	for(j = 0; j < 128; j += 16) {
885 		printf("%s: %02x |", sc->name, j * sizeof *tp1);
886 		for(i = 0; i < 16; i++)
887 			printf(" %02x", tp1[i+j]);
888 		printf("\n");
889 	}
890 }
891 #endif /* notyet */
892 
893 /*
894  * Init Munich32x
895  */
896 static void
897 m32_init(struct softc *sc)
898 {
899 
900 	sc->m32x->conf =  0x00000000;
901 	sc->m32x->mode1 = 0x81048000 + 1600; 	/* XXX: temp */
902 #if 1
903 	sc->m32x->mode2 = 0x00000081;
904 	sc->m32x->txpoll = 0xffffffff;
905 #elif 1
906 	sc->m32x->mode2 = 0x00000081;
907 	sc->m32x->txpoll = 0xffffffff;
908 #else
909 	sc->m32x->mode2 = 0x00000101;
910 #endif
911 	sc->m32x->lconf = 0x6060009B;
912 	sc->m32x->imask = 0x00000000;
913 }
914 
915 /*
916  * Init the Falc54
917  */
918 static void
919 f54_init(struct softc *sc)
920 {
921 	sc->f54w->ipc  = 0x07;
922 
923 	sc->f54w->xpm0 = 0xbd;
924 	sc->f54w->xpm1 = 0x03;
925 	sc->f54w->xpm2 = 0x00;
926 
927 	sc->f54w->imr0 = 0x18; /* RMB, CASC */
928 	sc->f54w->imr1 = 0x08; /* XMB */
929 	sc->f54w->imr2 = 0x00;
930 	sc->f54w->imr3 = 0x38; /* LMFA16, AIS16, RA16 */
931 	sc->f54w->imr4 = 0x00;
932 
933 	sc->f54w->fmr0 = 0xf0; /* X: HDB3, R: HDB3 */
934 	sc->f54w->fmr1 = 0x0e; /* Send CRC4, 2Mbit, ECM */
935 	if (sc->framing == E1)
936 		sc->f54w->fmr2 = 0x03; /* Auto Rem-Alarm, Auto resync */
937 	else if (sc->framing == E1U)
938 		sc->f54w->fmr2 = 0x33; /* dais, rtm, Auto Rem-Alarm, Auto resync */
939 
940 	sc->f54w->lim1 = 0xb0; /* XCLK=8kHz, .62V threshold */
941 	sc->f54w->pcd =  0x0a;
942 	sc->f54w->pcr =  0x15;
943 	sc->f54w->xsw =  0x9f; /* fmr4 */
944 	if (sc->framing == E1)
945 		sc->f54w->xsp =  0x1c; /* fmr5 */
946 	else if (sc->framing == E1U)
947 		sc->f54w->xsp =  0x3c; /* tt0, fmr5 */
948 	sc->f54w->xc0 =  0x07;
949 	sc->f54w->xc1 =  0x3d;
950 	sc->f54w->rc0 =  0x05;
951 	sc->f54w->rc1 =  0x00;
952 	sc->f54w->cmdr = 0x51;
953 }
954 
955 static int
956 mn_reset(struct softc *sc)
957 {
958 	u_int32_t u;
959 	int i;
960 
961 	sc->m32x->ccba = vtophys(&sc->m32_mem.csa);
962 	sc->m32_mem.csa = vtophys(&sc->m32_mem.ccb);
963 
964 	bzero(sc->tiqb, sizeof sc->tiqb);
965 	sc->m32x->tiqba = vtophys(&sc->tiqb);
966 	sc->m32x->tiql = NIQB / 16 - 1;
967 
968 	bzero(sc->riqb, sizeof sc->riqb);
969 	sc->m32x->riqba = vtophys(&sc->riqb);
970 	sc->m32x->riql = NIQB / 16 - 1;
971 
972 	bzero(sc->ltiqb, sizeof sc->ltiqb);
973 	sc->m32x->ltiqba = vtophys(&sc->ltiqb);
974 	sc->m32x->ltiql = NIQB / 16 - 1;
975 
976 	bzero(sc->lriqb, sizeof sc->lriqb);
977 	sc->m32x->lriqba = vtophys(&sc->lriqb);
978 	sc->m32x->lriql = NIQB / 16 - 1;
979 
980 	bzero(sc->piqb, sizeof sc->piqb);
981 	sc->m32x->piqba = vtophys(&sc->piqb);
982 	sc->m32x->piql = NIQB / 16 - 1;
983 
984 	m32_init(sc);
985 	f54_init(sc);
986 
987 	u = sc->m32x->stat;
988 	sc->m32x->stat = u;
989 	sc->m32_mem.ccb = 0x4;
990 	sc->m32x->cmd = 0x1;
991 	DELAY(1000);
992 	u = sc->m32x->stat;
993 	sc->m32x->stat = u;
994 
995 	/* set all timeslots to known state */
996 	for (i = 0; i < 32; i++)
997 		sc->m32_mem.ts[i] = 0x20002000;
998 
999 	if (!(u & 1)) {
1000 		printf(
1001 "mn%d: WARNING: Controller failed the PCI bus-master test.\n"
1002 "mn%d: WARNING: Use a PCI slot which can support bus-master cards.\n",
1003 		    sc->unit, sc->unit);
1004 		return  (0);
1005 	}
1006 	return (1);
1007 }
1008 
1009 /*
1010  * FALC54 interrupt handling
1011  */
1012 static void
1013 f54_intr(struct softc *sc)
1014 {
1015 	unsigned g, u, s;
1016 
1017 	g = sc->f54r->gis;
1018 	u = sc->f54r->isr0 << 24;
1019 	u |= sc->f54r->isr1 << 16;
1020 	u |= sc->f54r->isr2 <<  8;
1021 	u |= sc->f54r->isr3;
1022 	sc->falc_irq = u;
1023 	/* don't chat about the 1 sec heart beat */
1024 	if (u & ~0x40) {
1025 #if 0
1026 		printf("%s*: FALC54 IRQ GIS:%02x %b\n", sc->name, g, u, "\20"
1027 		    "\40RME\37RFS\36T8MS\35RMB\34CASC\33CRC4\32SA6SC\31RPF"
1028 		    "\30b27\27RDO\26ALLS\25XDU\24XMB\23b22\22XLSC\21XPR"
1029 		    "\20FAR\17LFA\16MFAR\15T400MS\14AIS\13LOS\12RAR\11RA"
1030 		    "\10ES\7SEC\6LMFA16\5AIS16\4RA16\3API\2SLN\1SLP");
1031 #endif
1032 		s = sc->f54r->frs0 << 24;
1033 		s |= sc->f54r->frs1 << 16;
1034 		s |= sc->f54r->rsw <<  8;
1035 		s |= sc->f54r->rsp;
1036 		sc->falc_state = s;
1037 
1038 		s &= ~0x01844038;	/* undefined or static bits */
1039 		s &= ~0x00009fc7;	/* bits we don't care about */
1040 		s &= ~0x00780000;	/* XXX: TS16 related */
1041 		s &= ~0x06000000;	/* XXX: Multiframe related */
1042 #if 0
1043 		printf("%s*: FALC54 Status %b\n", sc->name, s, "\20"
1044 		    "\40LOS\37AIS\36LFA\35RRA\34AUXP\33NMF\32LMFA\31frs0.0"
1045 		    "\30frs1.7\27TS16RA\26TS16LOS\25TS16AIS\24TS16LFA\23frs1.2\22XLS\21XLO"
1046 		    "\20RS1\17rsw.6\16RRA\15RY0\14RY1\13RY2\12RY3\11RY4"
1047 		    "\10SI1\7SI2\6rsp.5\5rsp.4\4rsp.3\3RSIF\2RS13\1RS15");
1048 #endif
1049 		if (s != sc->framer_state) {
1050 #if 0
1051 			for (i = 0; i < M32_CHAN; i++) {
1052 				if (!sc->ch[i])
1053 					continue;
1054 			        sp = &sc->ch[i]->ifsppp;
1055 				if (!(sp->pp_if.if_flags & IFF_UP))
1056 					continue;
1057 				if (s)
1058 					timeout((timeout_t *)sp->pp_down, sp, 1 * hz);
1059 				else
1060 					timeout((timeout_t *)sp->pp_up, sp, 1 * hz);
1061 			}
1062 #endif
1063 			sc->framer_state = s;
1064 		}
1065 	}
1066 	/* Once per second check error counters */
1067 	/* XXX: not clear if this is actually ok */
1068 	if (!(u & 0x40))
1069 		return;
1070 	sc->cnt_fec  += sc->f54r->fec;
1071 	sc->cnt_cvc  += sc->f54r->cvc;
1072 	sc->cnt_cec1 += sc->f54r->cec1;
1073 	sc->cnt_ebc  += sc->f54r->ebc;
1074 	sc->cnt_cec2 += sc->f54r->cec2;
1075 	sc->cnt_cec3 += sc->f54r->cec3;
1076 	sc->cnt_rbc  += sc->f54r->rbc;
1077 }
1078 
1079 /*
1080  * Transmit interrupt for one channel
1081  */
1082 static void
1083 mn_tx_intr(struct softc *sc, u_int32_t vector)
1084 {
1085 	u_int32_t chan;
1086 	struct trxd *dp;
1087 	struct mbuf *m;
1088 
1089 	chan = vector & 0x1f;
1090 	if (!sc->ch[chan])
1091 		return;
1092 	if (sc->ch[chan]->state != UP) {
1093 		printf("%s: tx_intr when not UP\n", sc->name);
1094 		return;
1095 	}
1096 	for (;;) {
1097 		dp = sc->ch[chan]->x1;
1098 		if (vtophys(dp) == sc->m32_mem.ctxd[chan])
1099 			return;
1100 		m = dp->m;
1101 		if (m) {
1102 #if 0
1103 			printf("%d = %d - %d (%p)\n",
1104 			    sc->ch[chan]->tx_pending - m->m_pkthdr.len,
1105 			    sc->ch[chan]->tx_pending , m->m_pkthdr.len, m);
1106 #endif
1107 			sc->ch[chan]->tx_pending -= m->m_pkthdr.len;
1108 			m_freem(m);
1109 		}
1110 		sc->ch[chan]->last_xmit = time_second;
1111 		sc->ch[chan]->x1 = dp->vnext;
1112 		mn_free_desc(dp);
1113 	}
1114 }
1115 
1116 /*
1117  * Receive interrupt for one channel
1118  */
1119 static void
1120 mn_rx_intr(struct softc *sc, u_int32_t vector)
1121 {
1122 	u_int32_t chan, err;
1123 	struct trxd *dp;
1124 	struct mbuf *m;
1125 	struct schan *sch;
1126 
1127 	chan = vector & 0x1f;
1128 	if (!sc->ch[chan])
1129 		return;
1130 	sch = sc->ch[chan];
1131 	if (sch->state != UP) {
1132 		printf("%s: rx_intr when not UP\n", sc->name);
1133 		return;
1134 	}
1135 	vector &= ~0x1f;
1136 	if (vector == 0x30000b00)
1137 		sch->rx_error++;
1138 	for (;;) {
1139 		dp = sch->r1;
1140 		if (vtophys(dp) == sc->m32_mem.crxd[chan])
1141 			return;
1142 		m = dp->m;
1143 		dp->m = 0;
1144 		m->m_pkthdr.len = m->m_len = (dp->status >> 16) & 0x1fff;
1145 		err = (dp->status >> 8) & 0xff;
1146 		if (!err) {
1147 			ng_queue_data(sch->hook, m, NULL);
1148 			sch->last_recv = time_second;
1149 			m = 0;
1150 			/* we could be down by now... */
1151 			if (sch->state != UP)
1152 				return;
1153 		} else if (err & 0x40) {
1154 			sch->short_error++;
1155 		} else if (err & 0x10) {
1156 			sch->crc_error++;
1157 		} else if (err & 0x08) {
1158 			sch->dribble_error++;
1159 		} else if (err & 0x04) {
1160 			sch->long_error++;
1161 		} else if (err & 0x02) {
1162 			sch->abort_error++;
1163 		} else if (err & 0x01) {
1164 			sch->overflow_error++;
1165 		}
1166 		if (err) {
1167 			sch->last_rxerr = time_second;
1168 			sch->prev_error = sch->last_error;
1169 			sch->last_error = err;
1170 		}
1171 
1172 		sc->ch[chan]->r1 = dp->vnext;
1173 
1174 		/* Replenish desc + mbuf supplies */
1175 		if (!m) {
1176 			MGETHDR(m, MB_DONTWAIT, MT_DATA);
1177 			if (m == NULL) {
1178 				mn_free_desc(dp);
1179 				return; /* ENOBUFS */
1180 			}
1181 			MCLGET(m, MB_DONTWAIT);
1182 			if((m->m_flags & M_EXT) == 0) {
1183 				mn_free_desc(dp);
1184 				m_freem(m);
1185 				return; /* ENOBUFS */
1186 			}
1187 		}
1188 		dp->m = m;
1189 		dp->data = vtophys(m->m_data);
1190 		dp->flags = 0x40000000;
1191 		dp->flags += 1600 << 16;
1192 		dp->next = vtophys(dp);
1193 		dp->vnext = 0;
1194 		sc->ch[chan]->rl->next = vtophys(dp);
1195 		sc->ch[chan]->rl->vnext = dp;
1196 		sc->ch[chan]->rl->flags &= ~0x40000000;
1197 		sc->ch[chan]->rl = dp;
1198 	}
1199 }
1200 
1201 
1202 /*
1203  * Interupt handler
1204  */
1205 
1206 static void
1207 mn_intr(void *xsc)
1208 {
1209 	struct softc *sc;
1210 	u_int32_t stat, lstat, u;
1211 	int i, j;
1212 
1213 	sc = xsc;
1214 	stat =  sc->m32x->stat;
1215 	lstat =  sc->m32x->lstat;
1216 #if 0
1217 	if (!stat && !(lstat & 2))
1218 		return;
1219 #endif
1220 
1221 	if (stat & ~0xc200) {
1222 		printf("%s: I stat=%08x lstat=%08x\n", sc->name, stat, lstat);
1223 	}
1224 
1225 	if ((stat & 0x200) || (lstat & 2))
1226 		f54_intr(sc);
1227 
1228 	for (j = i = 0; i < 64; i ++) {
1229 		u = sc->riqb[i];
1230 		if (u) {
1231 			sc->riqb[i] = 0;
1232 			mn_rx_intr(sc, u);
1233 			if ((u & ~0x1f) == 0x30000800 || (u & ~0x1f) == 0x30000b00)
1234 				continue;
1235 			u &= ~0x30000400;	/* bits we don't care about */
1236 			if ((u & ~0x1f) == 0x00000900)
1237 				continue;
1238 			if (!(u & ~0x1f))
1239 				continue;
1240 			if (!j)
1241 				printf("%s*: RIQB:", sc->name);
1242 			printf(" [%d]=%08x", i, u);
1243 			j++;
1244 		}
1245 	}
1246 	if (j)
1247 	    printf("\n");
1248 
1249 	for (j = i = 0; i < 64; i ++) {
1250 		u = sc->tiqb[i];
1251 		if (u) {
1252 			sc->tiqb[i] = 0;
1253 			mn_tx_intr(sc, u);
1254 			if ((u & ~0x1f) == 0x20000800)
1255 				continue;
1256 			u &= ~0x20000000;	/* bits we don't care about */
1257 			if (!u)
1258 				continue;
1259 			if (!j)
1260 				printf("%s*: TIQB:", sc->name);
1261 			printf(" [%d]=%08x", i, u);
1262 			j++;
1263 		}
1264 	}
1265 	if (j)
1266 		printf("\n");
1267 	sc->m32x->stat = stat;
1268 }
1269 
1270 /*
1271  * PCI initialization stuff
1272  */
1273 
1274 static int
1275 mn_probe (device_t self)
1276 {
1277 	u_int id = pci_get_devid(self);
1278 
1279 	if (sizeof (struct m32xreg) != 256) {
1280 		printf("MN: sizeof(struct m32xreg) = %d, should have been 256\n", sizeof (struct m32xreg));
1281 		return (ENXIO);
1282 	}
1283 	if (sizeof (struct f54rreg) != 128) {
1284 		printf("MN: sizeof(struct f54rreg) = %d, should have been 128\n", sizeof (struct f54rreg));
1285 		return (ENXIO);
1286 	}
1287 	if (sizeof (struct f54wreg) != 128) {
1288 		printf("MN: sizeof(struct f54wreg) = %d, should have been 128\n", sizeof (struct f54wreg));
1289 		return (ENXIO);
1290 	}
1291 
1292 	if (id != 0x2101110a)
1293 		return (ENXIO);
1294 
1295 	device_set_desc_copy(self, "Munich32X E1/T1 HDLC Controller");
1296 	return (0);
1297 }
1298 
1299 static int
1300 mn_attach (device_t self)
1301 {
1302 	struct softc *sc;
1303 	u_int32_t u;
1304 	u_int32_t ver;
1305 	static int once;
1306 	int rid, error;
1307 	struct resource *res;
1308 
1309 	if (!once) {
1310 		if (ng_newtype(&mntypestruct))
1311 			printf("ng_newtype failed\n");
1312 		once++;
1313 	}
1314 
1315 	sc = (struct softc *)malloc(sizeof *sc, M_MN, M_WAITOK | M_ZERO);
1316 	device_set_softc(self, sc);
1317 
1318 	sc->dev = self;
1319 	sc->unit = device_get_unit(self);
1320 	sc->framing = E1;
1321 	sprintf(sc->name, "mn%d", sc->unit);
1322 
1323         rid = PCIR_MAPS;
1324         res = bus_alloc_resource(self, SYS_RES_MEMORY, &rid,
1325             0, ~0, 1, RF_ACTIVE);
1326         if (res == NULL) {
1327                 device_printf(self, "Could not map memory\n");
1328                 return ENXIO;
1329         }
1330         sc->m0v = rman_get_virtual(res);
1331         sc->m0p = rman_get_start(res);
1332 
1333         rid = PCIR_MAPS + 4;
1334         res = bus_alloc_resource(self, SYS_RES_MEMORY, &rid,
1335             0, ~0, 1, RF_ACTIVE);
1336         if (res == NULL) {
1337                 device_printf(self, "Could not map memory\n");
1338                 return ENXIO;
1339         }
1340         sc->m1v = rman_get_virtual(res);
1341         sc->m1p = rman_get_start(res);
1342 
1343 	/* Allocate interrupt */
1344 	rid = 0;
1345 	sc->irq = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 0, ~0,
1346 	    1, RF_SHAREABLE | RF_ACTIVE);
1347 
1348 	if (sc->irq == NULL) {
1349 		printf("couldn't map interrupt\n");
1350 		return(ENXIO);
1351 	}
1352 
1353 	error = bus_setup_intr(self, sc->irq, INTR_TYPE_NET, mn_intr, sc, &sc->intrhand);
1354 
1355 	if (error) {
1356 		printf("couldn't set up irq\n");
1357 		return(ENXIO);
1358 	}
1359 
1360 	u = pci_read_config(self, PCIR_COMMAND, 1);
1361 	printf("%x\n", u);
1362 	pci_write_config(self, PCIR_COMMAND, u | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MEMEN, 1);
1363 #if 0
1364 	pci_write_config(self, PCIR_COMMAND, 0x02800046, 4);
1365 #endif
1366 	u = pci_read_config(self, PCIR_COMMAND, 1);
1367 	printf("%x\n", u);
1368 
1369 	ver = pci_get_revid(self);
1370 
1371 	sc->m32x = (struct m32xreg *) sc->m0v;
1372 	sc->f54w = (struct f54wreg *) sc->m1v;
1373 	sc->f54r = (struct f54rreg *) sc->m1v;
1374 
1375 	/* We must reset before poking at FALC54 registers */
1376 	u = mn_reset(sc);
1377 	if (!u)
1378 		return (0);
1379 
1380 	printf("mn%d: Munich32X", sc->unit);
1381 	switch (ver) {
1382 	case 0x13:
1383 		printf(" Rev 2.2");
1384 		break;
1385 	default:
1386 		printf(" Rev 0x%x\n", ver);
1387 	}
1388 	printf(", Falc54");
1389 	switch (sc->f54r->vstr) {
1390 	case 0:
1391 		printf(" Rev < 1.3\n");
1392 		break;
1393 	case 1:
1394 		printf(" Rev 1.3\n");
1395 		break;
1396 	case 2:
1397 		printf(" Rev 1.4\n");
1398 		break;
1399 	case 0x10:
1400 		printf("-LH Rev 1.1\n");
1401 		break;
1402 	case 0x13:
1403 		printf("-LH Rev 1.3\n");
1404 		break;
1405 	default:
1406 		printf(" Rev 0x%x\n", sc->f54r->vstr);
1407 	}
1408 
1409 	if (ng_make_node_common(&mntypestruct, &sc->node) != 0) {
1410 		printf("ng_make_node_common failed\n");
1411 		return (0);
1412 	}
1413 	sc->node->private = sc;
1414 	sprintf(sc->nodename, "%s%d", NG_MN_NODE_TYPE, sc->unit);
1415 	if (ng_name_node(sc->node, sc->nodename)) {
1416 		ng_rmnode(sc->node);
1417 		ng_unref(sc->node);
1418 		return (0);
1419 	}
1420 
1421 	return (0);
1422 }
1423 
1424 
1425 static device_method_t mn_methods[] = {
1426         /* Device interface */
1427         DEVMETHOD(device_probe,         mn_probe),
1428         DEVMETHOD(device_attach,        mn_attach),
1429         DEVMETHOD(device_suspend,       bus_generic_suspend),
1430         DEVMETHOD(device_resume,        bus_generic_resume),
1431         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1432 
1433         {0, 0}
1434 };
1435 
1436 static driver_t mn_driver = {
1437         "mn",
1438         mn_methods,
1439         0
1440 };
1441 
1442 static devclass_t mn_devclass;
1443 
1444 DECLARE_DUMMY_MODULE(if_mn);
1445 DRIVER_MODULE(if_mn, pci, mn_driver, mn_devclass, 0, 0);
1446 
1447